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freebsd-dev/sys/dev/iwn/if_iwn.c
Bjoern A. Zeeb fe5ebb23cc Provide MS() and SM() macros for 80211 and wireless drivers. 
We have (two versions) of MS() and SM() macros which we use throughout
the wireless code.  Change all but three places (ath_hal, rtwn, and rsu)
to the newly provided _IEEE80211_MASKSHIFT() and _IEEE80211_SHIFTMASK()
macros.  Also change one internal case using both _S and _M instead of
just _S away from _M (one of the reasons rtwn and rsu were not changed).

This was done semi-mechanically.  No functional changes intended.

Requested by:	gnn (D26091)
Reviewed by:	adrian (pre line wrap)
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC (d/b/a "Netgate")
Differential Revision:	https://reviews.freebsd.org/D26539
2020-09-24 10:57:39 +00:00

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/*-
* Copyright (c) 2007-2009 Damien Bergamini <damien.bergamini@free.fr>
* Copyright (c) 2008 Benjamin Close <benjsc@FreeBSD.org>
* Copyright (c) 2008 Sam Leffler, Errno Consulting
* Copyright (c) 2011 Intel Corporation
* Copyright (c) 2013 Cedric GROSS <c.gross@kreiz-it.fr>
* Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Driver for Intel WiFi Link 4965 and 1000/5000/6000 Series 802.11 network
* adapters.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_wlan.h"
#include "opt_iwn.h"
#include <sys/param.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/rman.h>
#include <sys/endian.h>
#include <sys/firmware.h>
#include <sys/limits.h>
#include <sys/module.h>
#include <sys/priv.h>
#include <sys/queue.h>
#include <sys/taskqueue.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/clock.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_regdomain.h>
#include <net80211/ieee80211_ratectl.h>
#include <dev/iwn/if_iwnreg.h>
#include <dev/iwn/if_iwnvar.h>
#include <dev/iwn/if_iwn_devid.h>
#include <dev/iwn/if_iwn_chip_cfg.h>
#include <dev/iwn/if_iwn_debug.h>
#include <dev/iwn/if_iwn_ioctl.h>
struct iwn_ident {
uint16_t vendor;
uint16_t device;
const char *name;
};
static const struct iwn_ident iwn_ident_table[] = {
{ 0x8086, IWN_DID_6x05_1, "Intel Centrino Advanced-N 6205" },
{ 0x8086, IWN_DID_1000_1, "Intel Centrino Wireless-N 1000" },
{ 0x8086, IWN_DID_1000_2, "Intel Centrino Wireless-N 1000" },
{ 0x8086, IWN_DID_6x05_2, "Intel Centrino Advanced-N 6205" },
{ 0x8086, IWN_DID_6050_1, "Intel Centrino Advanced-N + WiMAX 6250" },
{ 0x8086, IWN_DID_6050_2, "Intel Centrino Advanced-N + WiMAX 6250" },
{ 0x8086, IWN_DID_x030_1, "Intel Centrino Wireless-N 1030" },
{ 0x8086, IWN_DID_x030_2, "Intel Centrino Wireless-N 1030" },
{ 0x8086, IWN_DID_x030_3, "Intel Centrino Advanced-N 6230" },
{ 0x8086, IWN_DID_x030_4, "Intel Centrino Advanced-N 6230" },
{ 0x8086, IWN_DID_6150_1, "Intel Centrino Wireless-N + WiMAX 6150" },
{ 0x8086, IWN_DID_6150_2, "Intel Centrino Wireless-N + WiMAX 6150" },
{ 0x8086, IWN_DID_2x00_1, "Intel(R) Centrino(R) Wireless-N 2200 BGN" },
{ 0x8086, IWN_DID_2x00_2, "Intel(R) Centrino(R) Wireless-N 2200 BGN" },
/* XXX 2200D is IWN_SDID_2x00_4; there's no way to express this here! */
{ 0x8086, IWN_DID_2x30_1, "Intel Centrino Wireless-N 2230" },
{ 0x8086, IWN_DID_2x30_2, "Intel Centrino Wireless-N 2230" },
{ 0x8086, IWN_DID_130_1, "Intel Centrino Wireless-N 130" },
{ 0x8086, IWN_DID_130_2, "Intel Centrino Wireless-N 130" },
{ 0x8086, IWN_DID_100_1, "Intel Centrino Wireless-N 100" },
{ 0x8086, IWN_DID_100_2, "Intel Centrino Wireless-N 100" },
{ 0x8086, IWN_DID_105_1, "Intel Centrino Wireless-N 105" },
{ 0x8086, IWN_DID_105_2, "Intel Centrino Wireless-N 105" },
{ 0x8086, IWN_DID_135_1, "Intel Centrino Wireless-N 135" },
{ 0x8086, IWN_DID_135_2, "Intel Centrino Wireless-N 135" },
{ 0x8086, IWN_DID_4965_1, "Intel Wireless WiFi Link 4965" },
{ 0x8086, IWN_DID_6x00_1, "Intel Centrino Ultimate-N 6300" },
{ 0x8086, IWN_DID_6x00_2, "Intel Centrino Advanced-N 6200" },
{ 0x8086, IWN_DID_4965_2, "Intel Wireless WiFi Link 4965" },
{ 0x8086, IWN_DID_4965_3, "Intel Wireless WiFi Link 4965" },
{ 0x8086, IWN_DID_5x00_1, "Intel WiFi Link 5100" },
{ 0x8086, IWN_DID_4965_4, "Intel Wireless WiFi Link 4965" },
{ 0x8086, IWN_DID_5x00_3, "Intel Ultimate N WiFi Link 5300" },
{ 0x8086, IWN_DID_5x00_4, "Intel Ultimate N WiFi Link 5300" },
{ 0x8086, IWN_DID_5x00_2, "Intel WiFi Link 5100" },
{ 0x8086, IWN_DID_6x00_3, "Intel Centrino Ultimate-N 6300" },
{ 0x8086, IWN_DID_6x00_4, "Intel Centrino Advanced-N 6200" },
{ 0x8086, IWN_DID_5x50_1, "Intel WiMAX/WiFi Link 5350" },
{ 0x8086, IWN_DID_5x50_2, "Intel WiMAX/WiFi Link 5350" },
{ 0x8086, IWN_DID_5x50_3, "Intel WiMAX/WiFi Link 5150" },
{ 0x8086, IWN_DID_5x50_4, "Intel WiMAX/WiFi Link 5150" },
{ 0x8086, IWN_DID_6035_1, "Intel Centrino Advanced 6235" },
{ 0x8086, IWN_DID_6035_2, "Intel Centrino Advanced 6235" },
{ 0, 0, NULL }
};
static int iwn_probe(device_t);
static int iwn_attach(device_t);
static void iwn4965_attach(struct iwn_softc *, uint16_t);
static void iwn5000_attach(struct iwn_softc *, uint16_t);
static int iwn_config_specific(struct iwn_softc *, uint16_t);
static void iwn_radiotap_attach(struct iwn_softc *);
static void iwn_sysctlattach(struct iwn_softc *);
static struct ieee80211vap *iwn_vap_create(struct ieee80211com *,
const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
const uint8_t [IEEE80211_ADDR_LEN],
const uint8_t [IEEE80211_ADDR_LEN]);
static void iwn_vap_delete(struct ieee80211vap *);
static int iwn_detach(device_t);
static int iwn_shutdown(device_t);
static int iwn_suspend(device_t);
static int iwn_resume(device_t);
static int iwn_nic_lock(struct iwn_softc *);
static int iwn_eeprom_lock(struct iwn_softc *);
static int iwn_init_otprom(struct iwn_softc *);
static int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int);
static void iwn_dma_map_addr(void *, bus_dma_segment_t *, int, int);
static int iwn_dma_contig_alloc(struct iwn_softc *, struct iwn_dma_info *,
void **, bus_size_t, bus_size_t);
static void iwn_dma_contig_free(struct iwn_dma_info *);
static int iwn_alloc_sched(struct iwn_softc *);
static void iwn_free_sched(struct iwn_softc *);
static int iwn_alloc_kw(struct iwn_softc *);
static void iwn_free_kw(struct iwn_softc *);
static int iwn_alloc_ict(struct iwn_softc *);
static void iwn_free_ict(struct iwn_softc *);
static int iwn_alloc_fwmem(struct iwn_softc *);
static void iwn_free_fwmem(struct iwn_softc *);
static int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
static void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
static void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
static int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *,
int);
static void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *);
static void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *);
static void iwn_check_tx_ring(struct iwn_softc *, int);
static void iwn5000_ict_reset(struct iwn_softc *);
static int iwn_read_eeprom(struct iwn_softc *,
uint8_t macaddr[IEEE80211_ADDR_LEN]);
static void iwn4965_read_eeprom(struct iwn_softc *);
#ifdef IWN_DEBUG
static void iwn4965_print_power_group(struct iwn_softc *, int);
#endif
static void iwn5000_read_eeprom(struct iwn_softc *);
static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *);
static void iwn_read_eeprom_band(struct iwn_softc *, int, int, int *,
struct ieee80211_channel[]);
static void iwn_read_eeprom_ht40(struct iwn_softc *, int, int, int *,
struct ieee80211_channel[]);
static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t);
static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *,
struct ieee80211_channel *);
static void iwn_getradiocaps(struct ieee80211com *, int, int *,
struct ieee80211_channel[]);
static int iwn_setregdomain(struct ieee80211com *,
struct ieee80211_regdomain *, int,
struct ieee80211_channel[]);
static void iwn_read_eeprom_enhinfo(struct iwn_softc *);
static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *,
const uint8_t mac[IEEE80211_ADDR_LEN]);
static void iwn_newassoc(struct ieee80211_node *, int);
static int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int);
static void iwn_calib_timeout(void *);
static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *);
static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *,
struct iwn_rx_data *);
static void iwn_agg_tx_complete(struct iwn_softc *, struct iwn_tx_ring *,
int, int, int);
static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *);
static void iwn5000_rx_calib_results(struct iwn_softc *,
struct iwn_rx_desc *);
static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *);
static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *,
struct iwn_rx_data *);
static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *,
struct iwn_rx_data *);
static void iwn_adj_ampdu_ptr(struct iwn_softc *, struct iwn_tx_ring *);
static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int, int,
uint8_t);
static int iwn_ampdu_check_bitmap(uint64_t, int, int);
static int iwn_ampdu_index_check(struct iwn_softc *, struct iwn_tx_ring *,
uint64_t, int, int);
static void iwn_ampdu_tx_done(struct iwn_softc *, int, int, int, void *);
static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *);
static void iwn_notif_intr(struct iwn_softc *);
static void iwn_wakeup_intr(struct iwn_softc *);
static void iwn_rftoggle_task(void *, int);
static void iwn_fatal_intr(struct iwn_softc *);
static void iwn_intr(void *);
static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t,
uint16_t);
static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t,
uint16_t);
#ifdef notyet
static void iwn5000_reset_sched(struct iwn_softc *, int, int);
#endif
static int iwn_tx_data(struct iwn_softc *, struct mbuf *,
struct ieee80211_node *);
static int iwn_tx_data_raw(struct iwn_softc *, struct mbuf *,
struct ieee80211_node *,
const struct ieee80211_bpf_params *params);
static int iwn_tx_cmd(struct iwn_softc *, struct mbuf *,
struct ieee80211_node *, struct iwn_tx_ring *);
static void iwn_xmit_task(void *arg0, int pending);
static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *,
const struct ieee80211_bpf_params *);
static int iwn_transmit(struct ieee80211com *, struct mbuf *);
static void iwn_scan_timeout(void *);
static void iwn_watchdog(void *);
static int iwn_ioctl(struct ieee80211com *, u_long , void *);
static void iwn_parent(struct ieee80211com *);
static int iwn_cmd(struct iwn_softc *, int, const void *, int, int);
static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *,
int);
static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *,
int);
static int iwn_set_link_quality(struct iwn_softc *,
struct ieee80211_node *);
static int iwn_add_broadcast_node(struct iwn_softc *, int);
static int iwn_updateedca(struct ieee80211com *);
static void iwn_set_promisc(struct iwn_softc *);
static void iwn_update_promisc(struct ieee80211com *);
static void iwn_update_mcast(struct ieee80211com *);
static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t);
static int iwn_set_critical_temp(struct iwn_softc *);
static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *);
static void iwn4965_power_calibration(struct iwn_softc *, int);
static int iwn4965_set_txpower(struct iwn_softc *, int);
static int iwn5000_set_txpower(struct iwn_softc *, int);
static int iwn4965_get_rssi(struct iwn_softc *, struct iwn_rx_stat *);
static int iwn5000_get_rssi(struct iwn_softc *, struct iwn_rx_stat *);
static int iwn_get_noise(const struct iwn_rx_general_stats *);
static int iwn4965_get_temperature(struct iwn_softc *);
static int iwn5000_get_temperature(struct iwn_softc *);
static int iwn_init_sensitivity(struct iwn_softc *);
static void iwn_collect_noise(struct iwn_softc *,
const struct iwn_rx_general_stats *);
static int iwn4965_init_gains(struct iwn_softc *);
static int iwn5000_init_gains(struct iwn_softc *);
static int iwn4965_set_gains(struct iwn_softc *);
static int iwn5000_set_gains(struct iwn_softc *);
static void iwn_tune_sensitivity(struct iwn_softc *,
const struct iwn_rx_stats *);
static void iwn_save_stats_counters(struct iwn_softc *,
const struct iwn_stats *);
static int iwn_send_sensitivity(struct iwn_softc *);
static void iwn_check_rx_recovery(struct iwn_softc *, struct iwn_stats *);
static int iwn_set_pslevel(struct iwn_softc *, int, int, int);
static int iwn_send_btcoex(struct iwn_softc *);
static int iwn_send_advanced_btcoex(struct iwn_softc *);
static int iwn5000_runtime_calib(struct iwn_softc *);
static int iwn_check_bss_filter(struct iwn_softc *);
static int iwn4965_rxon_assoc(struct iwn_softc *, int);
static int iwn5000_rxon_assoc(struct iwn_softc *, int);
static int iwn_send_rxon(struct iwn_softc *, int, int);
static int iwn_config(struct iwn_softc *);
static int iwn_scan(struct iwn_softc *, struct ieee80211vap *,
struct ieee80211_scan_state *, struct ieee80211_channel *);
static int iwn_auth(struct iwn_softc *, struct ieee80211vap *vap);
static int iwn_run(struct iwn_softc *, struct ieee80211vap *vap);
static int iwn_ampdu_rx_start(struct ieee80211_node *,
struct ieee80211_rx_ampdu *, int, int, int);
static void iwn_ampdu_rx_stop(struct ieee80211_node *,
struct ieee80211_rx_ampdu *);
static int iwn_addba_request(struct ieee80211_node *,
struct ieee80211_tx_ampdu *, int, int, int);
static int iwn_addba_response(struct ieee80211_node *,
struct ieee80211_tx_ampdu *, int, int, int);
static int iwn_ampdu_tx_start(struct ieee80211com *,
struct ieee80211_node *, uint8_t);
static void iwn_ampdu_tx_stop(struct ieee80211_node *,
struct ieee80211_tx_ampdu *);
static void iwn4965_ampdu_tx_start(struct iwn_softc *,
struct ieee80211_node *, int, uint8_t, uint16_t);
static void iwn4965_ampdu_tx_stop(struct iwn_softc *, int,
uint8_t, uint16_t);
static void iwn5000_ampdu_tx_start(struct iwn_softc *,
struct ieee80211_node *, int, uint8_t, uint16_t);
static void iwn5000_ampdu_tx_stop(struct iwn_softc *, int,
uint8_t, uint16_t);
static int iwn5000_query_calibration(struct iwn_softc *);
static int iwn5000_send_calibration(struct iwn_softc *);
static int iwn5000_send_wimax_coex(struct iwn_softc *);
static int iwn5000_crystal_calib(struct iwn_softc *);
static int iwn5000_temp_offset_calib(struct iwn_softc *);
static int iwn5000_temp_offset_calibv2(struct iwn_softc *);
static int iwn4965_post_alive(struct iwn_softc *);
static int iwn5000_post_alive(struct iwn_softc *);
static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *,
int);
static int iwn4965_load_firmware(struct iwn_softc *);
static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t,
const uint8_t *, int);
static int iwn5000_load_firmware(struct iwn_softc *);
static int iwn_read_firmware_leg(struct iwn_softc *,
struct iwn_fw_info *);
static int iwn_read_firmware_tlv(struct iwn_softc *,
struct iwn_fw_info *, uint16_t);
static int iwn_read_firmware(struct iwn_softc *);
static void iwn_unload_firmware(struct iwn_softc *);
static int iwn_clock_wait(struct iwn_softc *);
static int iwn_apm_init(struct iwn_softc *);
static void iwn_apm_stop_master(struct iwn_softc *);
static void iwn_apm_stop(struct iwn_softc *);
static int iwn4965_nic_config(struct iwn_softc *);
static int iwn5000_nic_config(struct iwn_softc *);
static int iwn_hw_prepare(struct iwn_softc *);
static int iwn_hw_init(struct iwn_softc *);
static void iwn_hw_stop(struct iwn_softc *);
static void iwn_panicked(void *, int);
static int iwn_init_locked(struct iwn_softc *);
static int iwn_init(struct iwn_softc *);
static void iwn_stop_locked(struct iwn_softc *);
static void iwn_stop(struct iwn_softc *);
static void iwn_scan_start(struct ieee80211com *);
static void iwn_scan_end(struct ieee80211com *);
static void iwn_set_channel(struct ieee80211com *);
static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long);
static void iwn_scan_mindwell(struct ieee80211_scan_state *);
#ifdef IWN_DEBUG
static char *iwn_get_csr_string(int);
static void iwn_debug_register(struct iwn_softc *);
#endif
static device_method_t iwn_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, iwn_probe),
DEVMETHOD(device_attach, iwn_attach),
DEVMETHOD(device_detach, iwn_detach),
DEVMETHOD(device_shutdown, iwn_shutdown),
DEVMETHOD(device_suspend, iwn_suspend),
DEVMETHOD(device_resume, iwn_resume),
DEVMETHOD_END
};
static driver_t iwn_driver = {
"iwn",
iwn_methods,
sizeof(struct iwn_softc)
};
static devclass_t iwn_devclass;
DRIVER_MODULE(iwn, pci, iwn_driver, iwn_devclass, NULL, NULL);
MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, iwn, iwn_ident_table,
nitems(iwn_ident_table) - 1);
MODULE_VERSION(iwn, 1);
MODULE_DEPEND(iwn, firmware, 1, 1, 1);
MODULE_DEPEND(iwn, pci, 1, 1, 1);
MODULE_DEPEND(iwn, wlan, 1, 1, 1);
static d_ioctl_t iwn_cdev_ioctl;
static d_open_t iwn_cdev_open;
static d_close_t iwn_cdev_close;
static struct cdevsw iwn_cdevsw = {
.d_version = D_VERSION,
.d_flags = 0,
.d_open = iwn_cdev_open,
.d_close = iwn_cdev_close,
.d_ioctl = iwn_cdev_ioctl,
.d_name = "iwn",
};
static int
iwn_probe(device_t dev)
{
const struct iwn_ident *ident;
for (ident = iwn_ident_table; ident->name != NULL; ident++) {
if (pci_get_vendor(dev) == ident->vendor &&
pci_get_device(dev) == ident->device) {
device_set_desc(dev, ident->name);
return (BUS_PROBE_DEFAULT);
}
}
return ENXIO;
}
static int
iwn_is_3stream_device(struct iwn_softc *sc)
{
/* XXX for now only 5300, until the 5350 can be tested */
if (sc->hw_type == IWN_HW_REV_TYPE_5300)
return (1);
return (0);
}
static int
iwn_attach(device_t dev)
{
struct iwn_softc *sc = device_get_softc(dev);
struct ieee80211com *ic;
int i, error, rid;
sc->sc_dev = dev;
#ifdef IWN_DEBUG
error = resource_int_value(device_get_name(sc->sc_dev),
device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug));
if (error != 0)
sc->sc_debug = 0;
#else
sc->sc_debug = 0;
#endif
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: begin\n",__func__);
/*
* Get the offset of the PCI Express Capability Structure in PCI
* Configuration Space.
*/
error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
if (error != 0) {
device_printf(dev, "PCIe capability structure not found!\n");
return error;
}
/* Clear device-specific "PCI retry timeout" register (41h). */
pci_write_config(dev, 0x41, 0, 1);
/* Enable bus-mastering. */
pci_enable_busmaster(dev);
rid = PCIR_BAR(0);
sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (sc->mem == NULL) {
device_printf(dev, "can't map mem space\n");
error = ENOMEM;
return error;
}
sc->sc_st = rman_get_bustag(sc->mem);
sc->sc_sh = rman_get_bushandle(sc->mem);
i = 1;
rid = 0;
if (pci_alloc_msi(dev, &i) == 0)
rid = 1;
/* Install interrupt handler. */
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
(rid != 0 ? 0 : RF_SHAREABLE));
if (sc->irq == NULL) {
device_printf(dev, "can't map interrupt\n");
error = ENOMEM;
goto fail;
}
IWN_LOCK_INIT(sc);
/* Read hardware revision and attach. */
sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> IWN_HW_REV_TYPE_SHIFT)
& IWN_HW_REV_TYPE_MASK;
sc->subdevice_id = pci_get_subdevice(dev);
/*
* 4965 versus 5000 and later have different methods.
* Let's set those up first.
*/
if (sc->hw_type == IWN_HW_REV_TYPE_4965)
iwn4965_attach(sc, pci_get_device(dev));
else
iwn5000_attach(sc, pci_get_device(dev));
/*
* Next, let's setup the various parameters of each NIC.
*/
error = iwn_config_specific(sc, pci_get_device(dev));
if (error != 0) {
device_printf(dev, "could not attach device, error %d\n",
error);
goto fail;
}
if ((error = iwn_hw_prepare(sc)) != 0) {
device_printf(dev, "hardware not ready, error %d\n", error);
goto fail;
}
/* Allocate DMA memory for firmware transfers. */
if ((error = iwn_alloc_fwmem(sc)) != 0) {
device_printf(dev,
"could not allocate memory for firmware, error %d\n",
error);
goto fail;
}
/* Allocate "Keep Warm" page. */
if ((error = iwn_alloc_kw(sc)) != 0) {
device_printf(dev,
"could not allocate keep warm page, error %d\n", error);
goto fail;
}
/* Allocate ICT table for 5000 Series. */
if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
(error = iwn_alloc_ict(sc)) != 0) {
device_printf(dev, "could not allocate ICT table, error %d\n",
error);
goto fail;
}
/* Allocate TX scheduler "rings". */
if ((error = iwn_alloc_sched(sc)) != 0) {
device_printf(dev,
"could not allocate TX scheduler rings, error %d\n", error);
goto fail;
}
/* Allocate TX rings (16 on 4965AGN, 20 on >=5000). */
for (i = 0; i < sc->ntxqs; i++) {
if ((error = iwn_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) {
device_printf(dev,
"could not allocate TX ring %d, error %d\n", i,
error);
goto fail;
}
}
/* Allocate RX ring. */
if ((error = iwn_alloc_rx_ring(sc, &sc->rxq)) != 0) {
device_printf(dev, "could not allocate RX ring, error %d\n",
error);
goto fail;
}
/* Clear pending interrupts. */
IWN_WRITE(sc, IWN_INT, 0xffffffff);
ic = &sc->sc_ic;
ic->ic_softc = sc;
ic->ic_name = device_get_nameunit(dev);
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
/* Set device capabilities. */
ic->ic_caps =
IEEE80211_C_STA /* station mode supported */
| IEEE80211_C_MONITOR /* monitor mode supported */
#if 0
| IEEE80211_C_BGSCAN /* background scanning */
#endif
| IEEE80211_C_TXPMGT /* tx power management */
| IEEE80211_C_SHSLOT /* short slot time supported */
| IEEE80211_C_WPA
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
#if 0
| IEEE80211_C_IBSS /* ibss/adhoc mode */
#endif
| IEEE80211_C_WME /* WME */
| IEEE80211_C_PMGT /* Station-side power mgmt */
;
/* Read MAC address, channels, etc from EEPROM. */
if ((error = iwn_read_eeprom(sc, ic->ic_macaddr)) != 0) {
device_printf(dev, "could not read EEPROM, error %d\n",
error);
goto fail;
}
/* Count the number of available chains. */
sc->ntxchains =
((sc->txchainmask >> 2) & 1) +
((sc->txchainmask >> 1) & 1) +
((sc->txchainmask >> 0) & 1);
sc->nrxchains =
((sc->rxchainmask >> 2) & 1) +
((sc->rxchainmask >> 1) & 1) +
((sc->rxchainmask >> 0) & 1);
if (bootverbose) {
device_printf(dev, "MIMO %dT%dR, %.4s, address %6D\n",
sc->ntxchains, sc->nrxchains, sc->eeprom_domain,
ic->ic_macaddr, ":");
}
if (sc->sc_flags & IWN_FLAG_HAS_11N) {
ic->ic_rxstream = sc->nrxchains;
ic->ic_txstream = sc->ntxchains;
/*
* Some of the 3 antenna devices (ie, the 4965) only supports
* 2x2 operation. So correct the number of streams if
* it's not a 3-stream device.
*/
if (! iwn_is_3stream_device(sc)) {
if (ic->ic_rxstream > 2)
ic->ic_rxstream = 2;
if (ic->ic_txstream > 2)
ic->ic_txstream = 2;
}
ic->ic_htcaps =
IEEE80211_HTCAP_SMPS_OFF /* SMPS mode disabled */
| IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */
| IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width*/
| IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
#ifdef notyet
| IEEE80211_HTCAP_GREENFIELD
#if IWN_RBUF_SIZE == 8192
| IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */
#else
| IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */
#endif
#endif
/* s/w capabilities */
| IEEE80211_HTC_HT /* HT operation */
| IEEE80211_HTC_AMPDU /* tx A-MPDU */
#ifdef notyet
| IEEE80211_HTC_AMSDU /* tx A-MSDU */
#endif
;
}
ieee80211_ifattach(ic);
ic->ic_vap_create = iwn_vap_create;
ic->ic_ioctl = iwn_ioctl;
ic->ic_parent = iwn_parent;
ic->ic_vap_delete = iwn_vap_delete;
ic->ic_transmit = iwn_transmit;
ic->ic_raw_xmit = iwn_raw_xmit;
ic->ic_node_alloc = iwn_node_alloc;
sc->sc_ampdu_rx_start = ic->ic_ampdu_rx_start;
ic->ic_ampdu_rx_start = iwn_ampdu_rx_start;
sc->sc_ampdu_rx_stop = ic->ic_ampdu_rx_stop;
ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop;
sc->sc_addba_request = ic->ic_addba_request;
ic->ic_addba_request = iwn_addba_request;
sc->sc_addba_response = ic->ic_addba_response;
ic->ic_addba_response = iwn_addba_response;
sc->sc_addba_stop = ic->ic_addba_stop;
ic->ic_addba_stop = iwn_ampdu_tx_stop;
ic->ic_newassoc = iwn_newassoc;
ic->ic_wme.wme_update = iwn_updateedca;
ic->ic_update_promisc = iwn_update_promisc;
ic->ic_update_mcast = iwn_update_mcast;
ic->ic_scan_start = iwn_scan_start;
ic->ic_scan_end = iwn_scan_end;
ic->ic_set_channel = iwn_set_channel;
ic->ic_scan_curchan = iwn_scan_curchan;
ic->ic_scan_mindwell = iwn_scan_mindwell;
ic->ic_getradiocaps = iwn_getradiocaps;
ic->ic_setregdomain = iwn_setregdomain;
iwn_radiotap_attach(sc);
callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0);
callout_init_mtx(&sc->scan_timeout, &sc->sc_mtx, 0);
callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0);
TASK_INIT(&sc->sc_rftoggle_task, 0, iwn_rftoggle_task, sc);
TASK_INIT(&sc->sc_panic_task, 0, iwn_panicked, sc);
TASK_INIT(&sc->sc_xmit_task, 0, iwn_xmit_task, sc);
mbufq_init(&sc->sc_xmit_queue, 1024);
sc->sc_tq = taskqueue_create("iwn_taskq", M_WAITOK,
taskqueue_thread_enqueue, &sc->sc_tq);
error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "iwn_taskq");
if (error != 0) {
device_printf(dev, "can't start threads, error %d\n", error);
goto fail;
}
iwn_sysctlattach(sc);
/*
* Hook our interrupt after all initialization is complete.
*/
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
NULL, iwn_intr, sc, &sc->sc_ih);
if (error != 0) {
device_printf(dev, "can't establish interrupt, error %d\n",
error);
goto fail;
}
#if 0
device_printf(sc->sc_dev, "%s: rx_stats=%d, rx_stats_bt=%d\n",
__func__,
sizeof(struct iwn_stats),
sizeof(struct iwn_stats_bt));
#endif
if (bootverbose)
ieee80211_announce(ic);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
/* Add debug ioctl right at the end */
sc->sc_cdev = make_dev(&iwn_cdevsw, device_get_unit(dev),
UID_ROOT, GID_WHEEL, 0600, "%s", device_get_nameunit(dev));
if (sc->sc_cdev == NULL) {
device_printf(dev, "failed to create debug character device\n");
} else {
sc->sc_cdev->si_drv1 = sc;
}
return 0;
fail:
iwn_detach(dev);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__);
return error;
}
/*
* Define specific configuration based on device id and subdevice id
* pid : PCI device id
*/
static int
iwn_config_specific(struct iwn_softc *sc, uint16_t pid)
{
switch (pid) {
/* 4965 series */
case IWN_DID_4965_1:
case IWN_DID_4965_2:
case IWN_DID_4965_3:
case IWN_DID_4965_4:
sc->base_params = &iwn4965_base_params;
sc->limits = &iwn4965_sensitivity_limits;
sc->fwname = "iwn4965fw";
/* Override chains masks, ROM is known to be broken. */
sc->txchainmask = IWN_ANT_AB;
sc->rxchainmask = IWN_ANT_ABC;
/* Enable normal btcoex */
sc->sc_flags |= IWN_FLAG_BTCOEX;
break;
/* 1000 Series */
case IWN_DID_1000_1:
case IWN_DID_1000_2:
switch(sc->subdevice_id) {
case IWN_SDID_1000_1:
case IWN_SDID_1000_2:
case IWN_SDID_1000_3:
case IWN_SDID_1000_4:
case IWN_SDID_1000_5:
case IWN_SDID_1000_6:
case IWN_SDID_1000_7:
case IWN_SDID_1000_8:
case IWN_SDID_1000_9:
case IWN_SDID_1000_10:
case IWN_SDID_1000_11:
case IWN_SDID_1000_12:
sc->limits = &iwn1000_sensitivity_limits;
sc->base_params = &iwn1000_base_params;
sc->fwname = "iwn1000fw";
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 6x00 Series */
case IWN_DID_6x00_2:
case IWN_DID_6x00_4:
case IWN_DID_6x00_1:
case IWN_DID_6x00_3:
sc->fwname = "iwn6000fw";
sc->limits = &iwn6000_sensitivity_limits;
switch(sc->subdevice_id) {
case IWN_SDID_6x00_1:
case IWN_SDID_6x00_2:
case IWN_SDID_6x00_8:
//iwl6000_3agn_cfg
sc->base_params = &iwn_6000_base_params;
break;
case IWN_SDID_6x00_3:
case IWN_SDID_6x00_6:
case IWN_SDID_6x00_9:
////iwl6000i_2agn
case IWN_SDID_6x00_4:
case IWN_SDID_6x00_7:
case IWN_SDID_6x00_10:
//iwl6000i_2abg_cfg
case IWN_SDID_6x00_5:
//iwl6000i_2bg_cfg
sc->base_params = &iwn_6000i_base_params;
sc->sc_flags |= IWN_FLAG_INTERNAL_PA;
sc->txchainmask = IWN_ANT_BC;
sc->rxchainmask = IWN_ANT_BC;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 6x05 Series */
case IWN_DID_6x05_1:
case IWN_DID_6x05_2:
switch(sc->subdevice_id) {
case IWN_SDID_6x05_1:
case IWN_SDID_6x05_4:
case IWN_SDID_6x05_6:
//iwl6005_2agn_cfg
case IWN_SDID_6x05_2:
case IWN_SDID_6x05_5:
case IWN_SDID_6x05_7:
//iwl6005_2abg_cfg
case IWN_SDID_6x05_3:
//iwl6005_2bg_cfg
case IWN_SDID_6x05_8:
case IWN_SDID_6x05_9:
//iwl6005_2agn_sff_cfg
case IWN_SDID_6x05_10:
//iwl6005_2agn_d_cfg
case IWN_SDID_6x05_11:
//iwl6005_2agn_mow1_cfg
case IWN_SDID_6x05_12:
//iwl6005_2agn_mow2_cfg
sc->fwname = "iwn6000g2afw";
sc->limits = &iwn6000_sensitivity_limits;
sc->base_params = &iwn_6000g2_base_params;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 6x35 Series */
case IWN_DID_6035_1:
case IWN_DID_6035_2:
switch(sc->subdevice_id) {
case IWN_SDID_6035_1:
case IWN_SDID_6035_2:
case IWN_SDID_6035_3:
case IWN_SDID_6035_4:
case IWN_SDID_6035_5:
sc->fwname = "iwn6000g2bfw";
sc->limits = &iwn6235_sensitivity_limits;
sc->base_params = &iwn_6235_base_params;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 6x50 WiFi/WiMax Series */
case IWN_DID_6050_1:
case IWN_DID_6050_2:
switch(sc->subdevice_id) {
case IWN_SDID_6050_1:
case IWN_SDID_6050_3:
case IWN_SDID_6050_5:
//iwl6050_2agn_cfg
case IWN_SDID_6050_2:
case IWN_SDID_6050_4:
case IWN_SDID_6050_6:
//iwl6050_2abg_cfg
sc->fwname = "iwn6050fw";
sc->txchainmask = IWN_ANT_AB;
sc->rxchainmask = IWN_ANT_AB;
sc->limits = &iwn6000_sensitivity_limits;
sc->base_params = &iwn_6050_base_params;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 6150 WiFi/WiMax Series */
case IWN_DID_6150_1:
case IWN_DID_6150_2:
switch(sc->subdevice_id) {
case IWN_SDID_6150_1:
case IWN_SDID_6150_3:
case IWN_SDID_6150_5:
// iwl6150_bgn_cfg
case IWN_SDID_6150_2:
case IWN_SDID_6150_4:
case IWN_SDID_6150_6:
//iwl6150_bg_cfg
sc->fwname = "iwn6050fw";
sc->limits = &iwn6000_sensitivity_limits;
sc->base_params = &iwn_6150_base_params;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 6030 Series and 1030 Series */
case IWN_DID_x030_1:
case IWN_DID_x030_2:
case IWN_DID_x030_3:
case IWN_DID_x030_4:
switch(sc->subdevice_id) {
case IWN_SDID_x030_1:
case IWN_SDID_x030_3:
case IWN_SDID_x030_5:
// iwl1030_bgn_cfg
case IWN_SDID_x030_2:
case IWN_SDID_x030_4:
case IWN_SDID_x030_6:
//iwl1030_bg_cfg
case IWN_SDID_x030_7:
case IWN_SDID_x030_10:
case IWN_SDID_x030_14:
//iwl6030_2agn_cfg
case IWN_SDID_x030_8:
case IWN_SDID_x030_11:
case IWN_SDID_x030_15:
// iwl6030_2bgn_cfg
case IWN_SDID_x030_9:
case IWN_SDID_x030_12:
case IWN_SDID_x030_16:
// iwl6030_2abg_cfg
case IWN_SDID_x030_13:
//iwl6030_2bg_cfg
sc->fwname = "iwn6000g2bfw";
sc->limits = &iwn6000_sensitivity_limits;
sc->base_params = &iwn_6000g2b_base_params;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 130 Series WiFi */
/* XXX: This series will need adjustment for rate.
* see rx_with_siso_diversity in linux kernel
*/
case IWN_DID_130_1:
case IWN_DID_130_2:
switch(sc->subdevice_id) {
case IWN_SDID_130_1:
case IWN_SDID_130_3:
case IWN_SDID_130_5:
//iwl130_bgn_cfg
case IWN_SDID_130_2:
case IWN_SDID_130_4:
case IWN_SDID_130_6:
//iwl130_bg_cfg
sc->fwname = "iwn6000g2bfw";
sc->limits = &iwn6000_sensitivity_limits;
sc->base_params = &iwn_6000g2b_base_params;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 100 Series WiFi */
case IWN_DID_100_1:
case IWN_DID_100_2:
switch(sc->subdevice_id) {
case IWN_SDID_100_1:
case IWN_SDID_100_2:
case IWN_SDID_100_3:
case IWN_SDID_100_4:
case IWN_SDID_100_5:
case IWN_SDID_100_6:
sc->limits = &iwn1000_sensitivity_limits;
sc->base_params = &iwn1000_base_params;
sc->fwname = "iwn100fw";
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 105 Series */
/* XXX: This series will need adjustment for rate.
* see rx_with_siso_diversity in linux kernel
*/
case IWN_DID_105_1:
case IWN_DID_105_2:
switch(sc->subdevice_id) {
case IWN_SDID_105_1:
case IWN_SDID_105_2:
case IWN_SDID_105_3:
//iwl105_bgn_cfg
case IWN_SDID_105_4:
//iwl105_bgn_d_cfg
sc->limits = &iwn2030_sensitivity_limits;
sc->base_params = &iwn2000_base_params;
sc->fwname = "iwn105fw";
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 135 Series */
/* XXX: This series will need adjustment for rate.
* see rx_with_siso_diversity in linux kernel
*/
case IWN_DID_135_1:
case IWN_DID_135_2:
switch(sc->subdevice_id) {
case IWN_SDID_135_1:
case IWN_SDID_135_2:
case IWN_SDID_135_3:
sc->limits = &iwn2030_sensitivity_limits;
sc->base_params = &iwn2030_base_params;
sc->fwname = "iwn135fw";
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 2x00 Series */
case IWN_DID_2x00_1:
case IWN_DID_2x00_2:
switch(sc->subdevice_id) {
case IWN_SDID_2x00_1:
case IWN_SDID_2x00_2:
case IWN_SDID_2x00_3:
//iwl2000_2bgn_cfg
case IWN_SDID_2x00_4:
//iwl2000_2bgn_d_cfg
sc->limits = &iwn2030_sensitivity_limits;
sc->base_params = &iwn2000_base_params;
sc->fwname = "iwn2000fw";
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice) \n",
pid, sc->subdevice_id, sc->hw_type);
return ENOTSUP;
}
break;
/* 2x30 Series */
case IWN_DID_2x30_1:
case IWN_DID_2x30_2:
switch(sc->subdevice_id) {
case IWN_SDID_2x30_1:
case IWN_SDID_2x30_3:
case IWN_SDID_2x30_5:
//iwl100_bgn_cfg
case IWN_SDID_2x30_2:
case IWN_SDID_2x30_4:
case IWN_SDID_2x30_6:
//iwl100_bg_cfg
sc->limits = &iwn2030_sensitivity_limits;
sc->base_params = &iwn2030_base_params;
sc->fwname = "iwn2030fw";
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 5x00 Series */
case IWN_DID_5x00_1:
case IWN_DID_5x00_2:
case IWN_DID_5x00_3:
case IWN_DID_5x00_4:
sc->limits = &iwn5000_sensitivity_limits;
sc->base_params = &iwn5000_base_params;
sc->fwname = "iwn5000fw";
switch(sc->subdevice_id) {
case IWN_SDID_5x00_1:
case IWN_SDID_5x00_2:
case IWN_SDID_5x00_3:
case IWN_SDID_5x00_4:
case IWN_SDID_5x00_9:
case IWN_SDID_5x00_10:
case IWN_SDID_5x00_11:
case IWN_SDID_5x00_12:
case IWN_SDID_5x00_17:
case IWN_SDID_5x00_18:
case IWN_SDID_5x00_19:
case IWN_SDID_5x00_20:
//iwl5100_agn_cfg
sc->txchainmask = IWN_ANT_B;
sc->rxchainmask = IWN_ANT_AB;
break;
case IWN_SDID_5x00_5:
case IWN_SDID_5x00_6:
case IWN_SDID_5x00_13:
case IWN_SDID_5x00_14:
case IWN_SDID_5x00_21:
case IWN_SDID_5x00_22:
//iwl5100_bgn_cfg
sc->txchainmask = IWN_ANT_B;
sc->rxchainmask = IWN_ANT_AB;
break;
case IWN_SDID_5x00_7:
case IWN_SDID_5x00_8:
case IWN_SDID_5x00_15:
case IWN_SDID_5x00_16:
case IWN_SDID_5x00_23:
case IWN_SDID_5x00_24:
//iwl5100_abg_cfg
sc->txchainmask = IWN_ANT_B;
sc->rxchainmask = IWN_ANT_AB;
break;
case IWN_SDID_5x00_25:
case IWN_SDID_5x00_26:
case IWN_SDID_5x00_27:
case IWN_SDID_5x00_28:
case IWN_SDID_5x00_29:
case IWN_SDID_5x00_30:
case IWN_SDID_5x00_31:
case IWN_SDID_5x00_32:
case IWN_SDID_5x00_33:
case IWN_SDID_5x00_34:
case IWN_SDID_5x00_35:
case IWN_SDID_5x00_36:
//iwl5300_agn_cfg
sc->txchainmask = IWN_ANT_ABC;
sc->rxchainmask = IWN_ANT_ABC;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
/* 5x50 Series */
case IWN_DID_5x50_1:
case IWN_DID_5x50_2:
case IWN_DID_5x50_3:
case IWN_DID_5x50_4:
sc->limits = &iwn5000_sensitivity_limits;
sc->base_params = &iwn5000_base_params;
sc->fwname = "iwn5000fw";
switch(sc->subdevice_id) {
case IWN_SDID_5x50_1:
case IWN_SDID_5x50_2:
case IWN_SDID_5x50_3:
//iwl5350_agn_cfg
sc->limits = &iwn5000_sensitivity_limits;
sc->base_params = &iwn5000_base_params;
sc->fwname = "iwn5000fw";
break;
case IWN_SDID_5x50_4:
case IWN_SDID_5x50_5:
case IWN_SDID_5x50_8:
case IWN_SDID_5x50_9:
case IWN_SDID_5x50_10:
case IWN_SDID_5x50_11:
//iwl5150_agn_cfg
case IWN_SDID_5x50_6:
case IWN_SDID_5x50_7:
case IWN_SDID_5x50_12:
case IWN_SDID_5x50_13:
//iwl5150_abg_cfg
sc->limits = &iwn5000_sensitivity_limits;
sc->fwname = "iwn5150fw";
sc->base_params = &iwn_5x50_base_params;
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
"0x%04x rev %d not supported (subdevice)\n", pid,
sc->subdevice_id,sc->hw_type);
return ENOTSUP;
}
break;
default:
device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id : 0x%04x"
"rev 0x%08x not supported (device)\n", pid, sc->subdevice_id,
sc->hw_type);
return ENOTSUP;
}
return 0;
}
static void
iwn4965_attach(struct iwn_softc *sc, uint16_t pid)
{
struct iwn_ops *ops = &sc->ops;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
ops->load_firmware = iwn4965_load_firmware;
ops->read_eeprom = iwn4965_read_eeprom;
ops->post_alive = iwn4965_post_alive;
ops->nic_config = iwn4965_nic_config;
ops->update_sched = iwn4965_update_sched;
ops->get_temperature = iwn4965_get_temperature;
ops->get_rssi = iwn4965_get_rssi;
ops->set_txpower = iwn4965_set_txpower;
ops->init_gains = iwn4965_init_gains;
ops->set_gains = iwn4965_set_gains;
ops->rxon_assoc = iwn4965_rxon_assoc;
ops->add_node = iwn4965_add_node;
ops->tx_done = iwn4965_tx_done;
ops->ampdu_tx_start = iwn4965_ampdu_tx_start;
ops->ampdu_tx_stop = iwn4965_ampdu_tx_stop;
sc->ntxqs = IWN4965_NTXQUEUES;
sc->firstaggqueue = IWN4965_FIRSTAGGQUEUE;
sc->ndmachnls = IWN4965_NDMACHNLS;
sc->broadcast_id = IWN4965_ID_BROADCAST;
sc->rxonsz = IWN4965_RXONSZ;
sc->schedsz = IWN4965_SCHEDSZ;
sc->fw_text_maxsz = IWN4965_FW_TEXT_MAXSZ;
sc->fw_data_maxsz = IWN4965_FW_DATA_MAXSZ;
sc->fwsz = IWN4965_FWSZ;
sc->sched_txfact_addr = IWN4965_SCHED_TXFACT;
sc->limits = &iwn4965_sensitivity_limits;
sc->fwname = "iwn4965fw";
/* Override chains masks, ROM is known to be broken. */
sc->txchainmask = IWN_ANT_AB;
sc->rxchainmask = IWN_ANT_ABC;
/* Enable normal btcoex */
sc->sc_flags |= IWN_FLAG_BTCOEX;
DPRINTF(sc, IWN_DEBUG_TRACE, "%s: end\n",__func__);
}
static void
iwn5000_attach(struct iwn_softc *sc, uint16_t pid)
{
struct iwn_ops *ops = &sc->ops;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
ops->load_firmware = iwn5000_load_firmware;
ops->read_eeprom = iwn5000_read_eeprom;
ops->post_alive = iwn5000_post_alive;
ops->nic_config = iwn5000_nic_config;
ops->update_sched = iwn5000_update_sched;
ops->get_temperature = iwn5000_get_temperature;
ops->get_rssi = iwn5000_get_rssi;
ops->set_txpower = iwn5000_set_txpower;
ops->init_gains = iwn5000_init_gains;
ops->set_gains = iwn5000_set_gains;
ops->rxon_assoc = iwn5000_rxon_assoc;
ops->add_node = iwn5000_add_node;
ops->tx_done = iwn5000_tx_done;
ops->ampdu_tx_start = iwn5000_ampdu_tx_start;
ops->ampdu_tx_stop = iwn5000_ampdu_tx_stop;
sc->ntxqs = IWN5000_NTXQUEUES;
sc->firstaggqueue = IWN5000_FIRSTAGGQUEUE;
sc->ndmachnls = IWN5000_NDMACHNLS;
sc->broadcast_id = IWN5000_ID_BROADCAST;
sc->rxonsz = IWN5000_RXONSZ;
sc->schedsz = IWN5000_SCHEDSZ;
sc->fw_text_maxsz = IWN5000_FW_TEXT_MAXSZ;
sc->fw_data_maxsz = IWN5000_FW_DATA_MAXSZ;
sc->fwsz = IWN5000_FWSZ;
sc->sched_txfact_addr = IWN5000_SCHED_TXFACT;
sc->reset_noise_gain = IWN5000_PHY_CALIB_RESET_NOISE_GAIN;
sc->noise_gain = IWN5000_PHY_CALIB_NOISE_GAIN;
DPRINTF(sc, IWN_DEBUG_TRACE, "%s: end\n",__func__);
}
/*
* Attach the interface to 802.11 radiotap.
*/
static void
iwn_radiotap_attach(struct iwn_softc *sc)
{
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
ieee80211_radiotap_attach(&sc->sc_ic,
&sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
IWN_TX_RADIOTAP_PRESENT,
&sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
IWN_RX_RADIOTAP_PRESENT);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
}
static void
iwn_sysctlattach(struct iwn_softc *sc)
{
#ifdef IWN_DEBUG
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug,
"control debugging printfs");
#endif
}
static struct ieee80211vap *
iwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
enum ieee80211_opmode opmode, int flags,
const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct iwn_softc *sc = ic->ic_softc;
struct iwn_vap *ivp;
struct ieee80211vap *vap;
if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
return NULL;
ivp = malloc(sizeof(struct iwn_vap), M_80211_VAP, M_WAITOK | M_ZERO);
vap = &ivp->iv_vap;
ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
ivp->ctx = IWN_RXON_BSS_CTX;
vap->iv_bmissthreshold = 10; /* override default */
/* Override with driver methods. */
ivp->iv_newstate = vap->iv_newstate;
vap->iv_newstate = iwn_newstate;
sc->ivap[IWN_RXON_BSS_CTX] = vap;
vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K;
vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_4; /* 4uS */
ieee80211_ratectl_init(vap);
/* Complete setup. */
ieee80211_vap_attach(vap, ieee80211_media_change,
ieee80211_media_status, mac);
ic->ic_opmode = opmode;
return vap;
}
static void
iwn_vap_delete(struct ieee80211vap *vap)
{
struct iwn_vap *ivp = IWN_VAP(vap);
ieee80211_ratectl_deinit(vap);
ieee80211_vap_detach(vap);
free(ivp, M_80211_VAP);
}
static void
iwn_xmit_queue_drain(struct iwn_softc *sc)
{
struct mbuf *m;
struct ieee80211_node *ni;
IWN_LOCK_ASSERT(sc);
while ((m = mbufq_dequeue(&sc->sc_xmit_queue)) != NULL) {
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
ieee80211_free_node(ni);
m_freem(m);
}
}
static int
iwn_xmit_queue_enqueue(struct iwn_softc *sc, struct mbuf *m)
{
IWN_LOCK_ASSERT(sc);
return (mbufq_enqueue(&sc->sc_xmit_queue, m));
}
static int
iwn_detach(device_t dev)
{
struct iwn_softc *sc = device_get_softc(dev);
int qid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
if (sc->sc_ic.ic_softc != NULL) {
/* Free the mbuf queue and node references */
IWN_LOCK(sc);
iwn_xmit_queue_drain(sc);
IWN_UNLOCK(sc);
iwn_stop(sc);
taskqueue_drain_all(sc->sc_tq);
taskqueue_free(sc->sc_tq);
callout_drain(&sc->watchdog_to);
callout_drain(&sc->scan_timeout);
callout_drain(&sc->calib_to);
ieee80211_ifdetach(&sc->sc_ic);
}
/* Uninstall interrupt handler. */
if (sc->irq != NULL) {
bus_teardown_intr(dev, sc->irq, sc->sc_ih);
bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq),
sc->irq);
pci_release_msi(dev);
}
/* Free DMA resources. */
iwn_free_rx_ring(sc, &sc->rxq);
for (qid = 0; qid < sc->ntxqs; qid++)
iwn_free_tx_ring(sc, &sc->txq[qid]);
iwn_free_sched(sc);
iwn_free_kw(sc);
if (sc->ict != NULL)
iwn_free_ict(sc);
iwn_free_fwmem(sc);
if (sc->mem != NULL)
bus_release_resource(dev, SYS_RES_MEMORY,
rman_get_rid(sc->mem), sc->mem);
if (sc->sc_cdev) {
destroy_dev(sc->sc_cdev);
sc->sc_cdev = NULL;
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n", __func__);
IWN_LOCK_DESTROY(sc);
return 0;
}
static int
iwn_shutdown(device_t dev)
{
struct iwn_softc *sc = device_get_softc(dev);
iwn_stop(sc);
return 0;
}
static int
iwn_suspend(device_t dev)
{
struct iwn_softc *sc = device_get_softc(dev);
ieee80211_suspend_all(&sc->sc_ic);
return 0;
}
static int
iwn_resume(device_t dev)
{
struct iwn_softc *sc = device_get_softc(dev);
/* Clear device-specific "PCI retry timeout" register (41h). */
pci_write_config(dev, 0x41, 0, 1);
ieee80211_resume_all(&sc->sc_ic);
return 0;
}
static int
iwn_nic_lock(struct iwn_softc *sc)
{
int ntries;
/* Request exclusive access to NIC. */
IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
/* Spin until we actually get the lock. */
for (ntries = 0; ntries < 1000; ntries++) {
if ((IWN_READ(sc, IWN_GP_CNTRL) &
(IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) ==
IWN_GP_CNTRL_MAC_ACCESS_ENA)
return 0;
DELAY(10);
}
return ETIMEDOUT;
}
static __inline void
iwn_nic_unlock(struct iwn_softc *sc)
{
IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
}
static __inline uint32_t
iwn_prph_read(struct iwn_softc *sc, uint32_t addr)
{
IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr);
IWN_BARRIER_READ_WRITE(sc);
return IWN_READ(sc, IWN_PRPH_RDATA);
}
static __inline void
iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
{
IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr);
IWN_BARRIER_WRITE(sc);
IWN_WRITE(sc, IWN_PRPH_WDATA, data);
}
static __inline void
iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
{
iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask);
}
static __inline void
iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
{
iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask);
}
static __inline void
iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr,
const uint32_t *data, int count)
{
for (; count > 0; count--, data++, addr += 4)
iwn_prph_write(sc, addr, *data);
}
static __inline uint32_t
iwn_mem_read(struct iwn_softc *sc, uint32_t addr)
{
IWN_WRITE(sc, IWN_MEM_RADDR, addr);
IWN_BARRIER_READ_WRITE(sc);
return IWN_READ(sc, IWN_MEM_RDATA);
}
static __inline void
iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
{
IWN_WRITE(sc, IWN_MEM_WADDR, addr);
IWN_BARRIER_WRITE(sc);
IWN_WRITE(sc, IWN_MEM_WDATA, data);
}
static __inline void
iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data)
{
uint32_t tmp;
tmp = iwn_mem_read(sc, addr & ~3);
if (addr & 3)
tmp = (tmp & 0x0000ffff) | data << 16;
else
tmp = (tmp & 0xffff0000) | data;
iwn_mem_write(sc, addr & ~3, tmp);
}
static __inline void
iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data,
int count)
{
for (; count > 0; count--, addr += 4)
*data++ = iwn_mem_read(sc, addr);
}
static __inline void
iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val,
int count)
{
for (; count > 0; count--, addr += 4)
iwn_mem_write(sc, addr, val);
}
static int
iwn_eeprom_lock(struct iwn_softc *sc)
{
int i, ntries;
for (i = 0; i < 100; i++) {
/* Request exclusive access to EEPROM. */
IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
IWN_HW_IF_CONFIG_EEPROM_LOCKED);
/* Spin until we actually get the lock. */
for (ntries = 0; ntries < 100; ntries++) {
if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
IWN_HW_IF_CONFIG_EEPROM_LOCKED)
return 0;
DELAY(10);
}
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end timeout\n", __func__);
return ETIMEDOUT;
}
static __inline void
iwn_eeprom_unlock(struct iwn_softc *sc)
{
IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED);
}
/*
* Initialize access by host to One Time Programmable ROM.
* NB: This kind of ROM can be found on 1000 or 6000 Series only.
*/
static int
iwn_init_otprom(struct iwn_softc *sc)
{
uint16_t prev, base, next;
int count, error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Wait for clock stabilization before accessing prph. */
if ((error = iwn_clock_wait(sc)) != 0)
return error;
if ((error = iwn_nic_lock(sc)) != 0)
return error;
iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
DELAY(5);
iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
iwn_nic_unlock(sc);
/* Set auto clock gate disable bit for HW with OTP shadow RAM. */
if (sc->base_params->shadow_ram_support) {
IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT,
IWN_RESET_LINK_PWR_MGMT_DIS);
}
IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER);
/* Clear ECC status. */
IWN_SETBITS(sc, IWN_OTP_GP,
IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS);
/*
* Find the block before last block (contains the EEPROM image)
* for HW without OTP shadow RAM.
*/
if (! sc->base_params->shadow_ram_support) {
/* Switch to absolute addressing mode. */
IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS);
base = prev = 0;
for (count = 0; count < sc->base_params->max_ll_items;
count++) {
error = iwn_read_prom_data(sc, base, &next, 2);
if (error != 0)
return error;
if (next == 0) /* End of linked-list. */
break;
prev = base;
base = le16toh(next);
}
if (count == 0 || count == sc->base_params->max_ll_items)
return EIO;
/* Skip "next" word. */
sc->prom_base = prev + 1;
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
return 0;
}
static int
iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count)
{
uint8_t *out = data;
uint32_t val, tmp;
int ntries;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
addr += sc->prom_base;
for (; count > 0; count -= 2, addr++) {
IWN_WRITE(sc, IWN_EEPROM, addr << 2);
for (ntries = 0; ntries < 10; ntries++) {
val = IWN_READ(sc, IWN_EEPROM);
if (val & IWN_EEPROM_READ_VALID)
break;
DELAY(5);
}
if (ntries == 10) {
device_printf(sc->sc_dev,
"timeout reading ROM at 0x%x\n", addr);
return ETIMEDOUT;
}
if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
/* OTPROM, check for ECC errors. */
tmp = IWN_READ(sc, IWN_OTP_GP);
if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) {
device_printf(sc->sc_dev,
"OTPROM ECC error at 0x%x\n", addr);
return EIO;
}
if (tmp & IWN_OTP_GP_ECC_CORR_STTS) {
/* Correctable ECC error, clear bit. */
IWN_SETBITS(sc, IWN_OTP_GP,
IWN_OTP_GP_ECC_CORR_STTS);
}
}
*out++ = val >> 16;
if (count > 1)
*out++ = val >> 24;
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
return 0;
}
static void
iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
{
if (error != 0)
return;
KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
*(bus_addr_t *)arg = segs[0].ds_addr;
}
static int
iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma,
void **kvap, bus_size_t size, bus_size_t alignment)
{
int error;
dma->tag = NULL;
dma->size = size;
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment,
0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
1, size, 0, NULL, NULL, &dma->tag);
if (error != 0)
goto fail;
error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
if (error != 0)
goto fail;
error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
iwn_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
if (error != 0)
goto fail;
bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
if (kvap != NULL)
*kvap = dma->vaddr;
return 0;
fail: iwn_dma_contig_free(dma);
return error;
}
static void
iwn_dma_contig_free(struct iwn_dma_info *dma)
{
if (dma->vaddr != NULL) {
bus_dmamap_sync(dma->tag, dma->map,
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(dma->tag, dma->map);
bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
dma->vaddr = NULL;
}
if (dma->tag != NULL) {
bus_dma_tag_destroy(dma->tag);
dma->tag = NULL;
}
}
static int
iwn_alloc_sched(struct iwn_softc *sc)
{
/* TX scheduler rings must be aligned on a 1KB boundary. */
return iwn_dma_contig_alloc(sc, &sc->sched_dma, (void **)&sc->sched,
sc->schedsz, 1024);
}
static void
iwn_free_sched(struct iwn_softc *sc)
{
iwn_dma_contig_free(&sc->sched_dma);
}
static int
iwn_alloc_kw(struct iwn_softc *sc)
{
/* "Keep Warm" page must be aligned on a 4KB boundary. */
return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 4096, 4096);
}
static void
iwn_free_kw(struct iwn_softc *sc)
{
iwn_dma_contig_free(&sc->kw_dma);
}
static int
iwn_alloc_ict(struct iwn_softc *sc)
{
/* ICT table must be aligned on a 4KB boundary. */
return iwn_dma_contig_alloc(sc, &sc->ict_dma, (void **)&sc->ict,
IWN_ICT_SIZE, 4096);
}
static void
iwn_free_ict(struct iwn_softc *sc)
{
iwn_dma_contig_free(&sc->ict_dma);
}
static int
iwn_alloc_fwmem(struct iwn_softc *sc)
{
/* Must be aligned on a 16-byte boundary. */
return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL, sc->fwsz, 16);
}
static void
iwn_free_fwmem(struct iwn_softc *sc)
{
iwn_dma_contig_free(&sc->fw_dma);
}
static int
iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
{
bus_size_t size;
int i, error;
ring->cur = 0;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Allocate RX descriptors (256-byte aligned). */
size = IWN_RX_RING_COUNT * sizeof (uint32_t);
error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
size, 256);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not allocate RX ring DMA memory, error %d\n",
__func__, error);
goto fail;
}
/* Allocate RX status area (16-byte aligned). */
error = iwn_dma_contig_alloc(sc, &ring->stat_dma, (void **)&ring->stat,
sizeof (struct iwn_rx_status), 16);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not allocate RX status DMA memory, error %d\n",
__func__, error);
goto fail;
}
/* Create RX buffer DMA tag. */
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
IWN_RBUF_SIZE, 1, IWN_RBUF_SIZE, 0, NULL, NULL, &ring->data_dmat);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not create RX buf DMA tag, error %d\n",
__func__, error);
goto fail;
}
/*
* Allocate and map RX buffers.
*/
for (i = 0; i < IWN_RX_RING_COUNT; i++) {
struct iwn_rx_data *data = &ring->data[i];
bus_addr_t paddr;
error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not create RX buf DMA map, error %d\n",
__func__, error);
goto fail;
}
data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
IWN_RBUF_SIZE);
if (data->m == NULL) {
device_printf(sc->sc_dev,
"%s: could not allocate RX mbuf\n", __func__);
error = ENOBUFS;
goto fail;
}
error = bus_dmamap_load(ring->data_dmat, data->map,
mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr,
&paddr, BUS_DMA_NOWAIT);
if (error != 0 && error != EFBIG) {
device_printf(sc->sc_dev,
"%s: can't map mbuf, error %d\n", __func__,
error);
goto fail;
}
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_PREREAD);
/* Set physical address of RX buffer (256-byte aligned). */
ring->desc[i] = htole32(paddr >> 8);
}
bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
BUS_DMASYNC_PREWRITE);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return 0;
fail: iwn_free_rx_ring(sc, ring);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__);
return error;
}
static void
iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
{
int ntries;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (iwn_nic_lock(sc) == 0) {
IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
for (ntries = 0; ntries < 1000; ntries++) {
if (IWN_READ(sc, IWN_FH_RX_STATUS) &
IWN_FH_RX_STATUS_IDLE)
break;
DELAY(10);
}
iwn_nic_unlock(sc);
}
ring->cur = 0;
sc->last_rx_valid = 0;
}
static void
iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
{
int i;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s \n", __func__);
iwn_dma_contig_free(&ring->desc_dma);
iwn_dma_contig_free(&ring->stat_dma);
for (i = 0; i < IWN_RX_RING_COUNT; i++) {
struct iwn_rx_data *data = &ring->data[i];
if (data->m != NULL) {
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(ring->data_dmat, data->map);
m_freem(data->m);
data->m = NULL;
}
if (data->map != NULL)
bus_dmamap_destroy(ring->data_dmat, data->map);
}
if (ring->data_dmat != NULL) {
bus_dma_tag_destroy(ring->data_dmat);
ring->data_dmat = NULL;
}
}
static int
iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid)
{
bus_addr_t paddr;
bus_size_t size;
int i, error;
ring->qid = qid;
ring->queued = 0;
ring->cur = 0;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Allocate TX descriptors (256-byte aligned). */
size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_desc);
error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
size, 256);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not allocate TX ring DMA memory, error %d\n",
__func__, error);
goto fail;
}
size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_cmd);
error = iwn_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
size, 4);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not allocate TX cmd DMA memory, error %d\n",
__func__, error);
goto fail;
}
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
IWN_MAX_SCATTER - 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not create TX buf DMA tag, error %d\n",
__func__, error);
goto fail;
}
paddr = ring->cmd_dma.paddr;
for (i = 0; i < IWN_TX_RING_COUNT; i++) {
struct iwn_tx_data *data = &ring->data[i];
data->cmd_paddr = paddr;
data->scratch_paddr = paddr + 12;
paddr += sizeof (struct iwn_tx_cmd);
error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not create TX buf DMA map, error %d\n",
__func__, error);
goto fail;
}
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
return 0;
fail: iwn_free_tx_ring(sc, ring);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__);
return error;
}
static void
iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
{
int i;
DPRINTF(sc, IWN_DEBUG_TRACE, "->doing %s \n", __func__);
for (i = 0; i < IWN_TX_RING_COUNT; i++) {
struct iwn_tx_data *data = &ring->data[i];
if (data->m != NULL) {
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(ring->data_dmat, data->map);
m_freem(data->m);
data->m = NULL;
}
if (data->ni != NULL) {
ieee80211_free_node(data->ni);
data->ni = NULL;
}
data->remapped = 0;
data->long_retries = 0;
}
/* Clear TX descriptors. */
memset(ring->desc, 0, ring->desc_dma.size);
bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
BUS_DMASYNC_PREWRITE);
sc->qfullmsk &= ~(1 << ring->qid);
ring->queued = 0;
ring->cur = 0;
}
static void
iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
{
int i;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s \n", __func__);
iwn_dma_contig_free(&ring->desc_dma);
iwn_dma_contig_free(&ring->cmd_dma);
for (i = 0; i < IWN_TX_RING_COUNT; i++) {
struct iwn_tx_data *data = &ring->data[i];
if (data->m != NULL) {
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(ring->data_dmat, data->map);
m_freem(data->m);
}
if (data->map != NULL)
bus_dmamap_destroy(ring->data_dmat, data->map);
}
if (ring->data_dmat != NULL) {
bus_dma_tag_destroy(ring->data_dmat);
ring->data_dmat = NULL;
}
}
static void
iwn_check_tx_ring(struct iwn_softc *sc, int qid)
{
struct iwn_tx_ring *ring = &sc->txq[qid];
KASSERT(ring->queued >= 0, ("%s: ring->queued (%d) for queue %d < 0!",
__func__, ring->queued, qid));
if (qid >= sc->firstaggqueue) {
struct iwn_ops *ops = &sc->ops;
struct ieee80211_tx_ampdu *tap = sc->qid2tap[qid];
if (ring->queued == 0 && !IEEE80211_AMPDU_RUNNING(tap)) {
uint16_t ssn = tap->txa_start & 0xfff;
uint8_t tid = tap->txa_tid;
int *res = tap->txa_private;
iwn_nic_lock(sc);
ops->ampdu_tx_stop(sc, qid, tid, ssn);
iwn_nic_unlock(sc);
sc->qid2tap[qid] = NULL;
free(res, M_DEVBUF);
}
}
if (ring->queued < IWN_TX_RING_LOMARK) {
sc->qfullmsk &= ~(1 << qid);
if (ring->queued == 0)
sc->sc_tx_timer = 0;
else
sc->sc_tx_timer = 5;
}
}
static void
iwn5000_ict_reset(struct iwn_softc *sc)
{
/* Disable interrupts. */
IWN_WRITE(sc, IWN_INT_MASK, 0);
/* Reset ICT table. */
memset(sc->ict, 0, IWN_ICT_SIZE);
sc->ict_cur = 0;
bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map,
BUS_DMASYNC_PREWRITE);
/* Set physical address of ICT table (4KB aligned). */
DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__);
IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE |
IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12);
/* Enable periodic RX interrupt. */
sc->int_mask |= IWN_INT_RX_PERIODIC;
/* Switch to ICT interrupt mode in driver. */
sc->sc_flags |= IWN_FLAG_USE_ICT;
/* Re-enable interrupts. */
IWN_WRITE(sc, IWN_INT, 0xffffffff);
IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
}
static int
iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
{
struct iwn_ops *ops = &sc->ops;
uint16_t val;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Check whether adapter has an EEPROM or an OTPROM. */
if (sc->hw_type >= IWN_HW_REV_TYPE_1000 &&
(IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP))
sc->sc_flags |= IWN_FLAG_HAS_OTPROM;
DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n",
(sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM");
/* Adapter has to be powered on for EEPROM access to work. */
if ((error = iwn_apm_init(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not power ON adapter, error %d\n", __func__,
error);
return error;
}
if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) {
device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__);
return EIO;
}
if ((error = iwn_eeprom_lock(sc)) != 0) {
device_printf(sc->sc_dev, "%s: could not lock ROM, error %d\n",
__func__, error);
return error;
}
if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
if ((error = iwn_init_otprom(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not initialize OTPROM, error %d\n",
__func__, error);
return error;
}
}
iwn_read_prom_data(sc, IWN_EEPROM_SKU_CAP, &val, 2);
DPRINTF(sc, IWN_DEBUG_RESET, "SKU capabilities=0x%04x\n", le16toh(val));
/* Check if HT support is bonded out. */
if (val & htole16(IWN_EEPROM_SKU_CAP_11N))
sc->sc_flags |= IWN_FLAG_HAS_11N;
iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2);
sc->rfcfg = le16toh(val);
DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg);
/* Read Tx/Rx chains from ROM unless it's known to be broken. */
if (sc->txchainmask == 0)
sc->txchainmask = IWN_RFCFG_TXANTMSK(sc->rfcfg);
if (sc->rxchainmask == 0)
sc->rxchainmask = IWN_RFCFG_RXANTMSK(sc->rfcfg);
/* Read MAC address. */
iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6);
/* Read adapter-specific information from EEPROM. */
ops->read_eeprom(sc);
iwn_apm_stop(sc); /* Power OFF adapter. */
iwn_eeprom_unlock(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
return 0;
}
static void
iwn4965_read_eeprom(struct iwn_softc *sc)
{
uint32_t addr;
uint16_t val;
int i;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Read regulatory domain (4 ASCII characters). */
iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4);
/* Read the list of authorized channels (20MHz & 40MHz). */
for (i = 0; i < IWN_NBANDS - 1; i++) {
addr = iwn4965_regulatory_bands[i];
iwn_read_eeprom_channels(sc, i, addr);
}
/* Read maximum allowed TX power for 2GHz and 5GHz bands. */
iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2);
sc->maxpwr2GHz = val & 0xff;
sc->maxpwr5GHz = val >> 8;
/* Check that EEPROM values are within valid range. */
if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50)
sc->maxpwr5GHz = 38;
if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50)
sc->maxpwr2GHz = 38;
DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n",
sc->maxpwr2GHz, sc->maxpwr5GHz);
/* Read samples for each TX power group. */
iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands,
sizeof sc->bands);
/* Read voltage at which samples were taken. */
iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2);
sc->eeprom_voltage = (int16_t)le16toh(val);
DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n",
sc->eeprom_voltage);
#ifdef IWN_DEBUG
/* Print samples. */
if (sc->sc_debug & IWN_DEBUG_ANY) {
for (i = 0; i < IWN_NBANDS - 1; i++)
iwn4965_print_power_group(sc, i);
}
#endif
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
}
#ifdef IWN_DEBUG
static void
iwn4965_print_power_group(struct iwn_softc *sc, int i)
{
struct iwn4965_eeprom_band *band = &sc->bands[i];
struct iwn4965_eeprom_chan_samples *chans = band->chans;
int j, c;
printf("===band %d===\n", i);
printf("chan lo=%d, chan hi=%d\n", band->lo, band->hi);
printf("chan1 num=%d\n", chans[0].num);
for (c = 0; c < 2; c++) {
for (j = 0; j < IWN_NSAMPLES; j++) {
printf("chain %d, sample %d: temp=%d gain=%d "
"power=%d pa_det=%d\n", c, j,
chans[0].samples[c][j].temp,
chans[0].samples[c][j].gain,
chans[0].samples[c][j].power,
chans[0].samples[c][j].pa_det);
}
}
printf("chan2 num=%d\n", chans[1].num);
for (c = 0; c < 2; c++) {
for (j = 0; j < IWN_NSAMPLES; j++) {
printf("chain %d, sample %d: temp=%d gain=%d "
"power=%d pa_det=%d\n", c, j,
chans[1].samples[c][j].temp,
chans[1].samples[c][j].gain,
chans[1].samples[c][j].power,
chans[1].samples[c][j].pa_det);
}
}
}
#endif
static void
iwn5000_read_eeprom(struct iwn_softc *sc)
{
struct iwn5000_eeprom_calib_hdr hdr;
int32_t volt;
uint32_t base, addr;
uint16_t val;
int i;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Read regulatory domain (4 ASCII characters). */
iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
base = le16toh(val);
iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN,
sc->eeprom_domain, 4);
/* Read the list of authorized channels (20MHz & 40MHz). */
for (i = 0; i < IWN_NBANDS - 1; i++) {
addr = base + sc->base_params->regulatory_bands[i];
iwn_read_eeprom_channels(sc, i, addr);
}
/* Read enhanced TX power information for 6000 Series. */
if (sc->base_params->enhanced_TX_power)
iwn_read_eeprom_enhinfo(sc);
iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2);
base = le16toh(val);
iwn_read_prom_data(sc, base, &hdr, sizeof hdr);
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: calib version=%u pa type=%u voltage=%u\n", __func__,
hdr.version, hdr.pa_type, le16toh(hdr.volt));
sc->calib_ver = hdr.version;
if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2) {
sc->eeprom_voltage = le16toh(hdr.volt);
iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2);
sc->eeprom_temp_high=le16toh(val);
iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2);
sc->eeprom_temp = le16toh(val);
}
if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
/* Compute temperature offset. */
iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2);
sc->eeprom_temp = le16toh(val);
iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2);
volt = le16toh(val);
sc->temp_off = sc->eeprom_temp - (volt / -5);
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n",
sc->eeprom_temp, volt, sc->temp_off);
} else {
/* Read crystal calibration. */
iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL,
&sc->eeprom_crystal, sizeof (uint32_t));
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n",
le32toh(sc->eeprom_crystal));
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
}
/*
* Translate EEPROM flags to net80211.
*/
static uint32_t
iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel)
{
uint32_t nflags;
nflags = 0;
if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0)
nflags |= IEEE80211_CHAN_PASSIVE;
if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0)
nflags |= IEEE80211_CHAN_NOADHOC;
if (channel->flags & IWN_EEPROM_CHAN_RADAR) {
nflags |= IEEE80211_CHAN_DFS;
/* XXX apparently IBSS may still be marked */
nflags |= IEEE80211_CHAN_NOADHOC;
}
return nflags;
}
static void
iwn_read_eeprom_band(struct iwn_softc *sc, int n, int maxchans, int *nchans,
struct ieee80211_channel chans[])
{
struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
const struct iwn_chan_band *band = &iwn_bands[n];
uint8_t bands[IEEE80211_MODE_BYTES];
uint8_t chan;
int i, error, nflags;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
memset(bands, 0, sizeof(bands));
if (n == 0) {
setbit(bands, IEEE80211_MODE_11B);
setbit(bands, IEEE80211_MODE_11G);
if (sc->sc_flags & IWN_FLAG_HAS_11N)
setbit(bands, IEEE80211_MODE_11NG);
} else {
setbit(bands, IEEE80211_MODE_11A);
if (sc->sc_flags & IWN_FLAG_HAS_11N)
setbit(bands, IEEE80211_MODE_11NA);
}
for (i = 0; i < band->nchan; i++) {
if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) {
DPRINTF(sc, IWN_DEBUG_RESET,
"skip chan %d flags 0x%x maxpwr %d\n",
band->chan[i], channels[i].flags,
channels[i].maxpwr);
continue;
}
chan = band->chan[i];
nflags = iwn_eeprom_channel_flags(&channels[i]);
error = ieee80211_add_channel(chans, maxchans, nchans,
chan, 0, channels[i].maxpwr, nflags, bands);
if (error != 0)
break;
/* Save maximum allowed TX power for this channel. */
/* XXX wrong */
sc->maxpwr[chan] = channels[i].maxpwr;
DPRINTF(sc, IWN_DEBUG_RESET,
"add chan %d flags 0x%x maxpwr %d\n", chan,
channels[i].flags, channels[i].maxpwr);
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
}
static void
iwn_read_eeprom_ht40(struct iwn_softc *sc, int n, int maxchans, int *nchans,
struct ieee80211_channel chans[])
{
struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
const struct iwn_chan_band *band = &iwn_bands[n];
uint8_t chan;
int i, error, nflags;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s start\n", __func__);
if (!(sc->sc_flags & IWN_FLAG_HAS_11N)) {
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end no 11n\n", __func__);
return;
}
for (i = 0; i < band->nchan; i++) {
if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) {
DPRINTF(sc, IWN_DEBUG_RESET,
"skip chan %d flags 0x%x maxpwr %d\n",
band->chan[i], channels[i].flags,
channels[i].maxpwr);
continue;
}
chan = band->chan[i];
nflags = iwn_eeprom_channel_flags(&channels[i]);
nflags |= (n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A);
error = ieee80211_add_channel_ht40(chans, maxchans, nchans,
chan, channels[i].maxpwr, nflags);
switch (error) {
case EINVAL:
device_printf(sc->sc_dev,
"%s: no entry for channel %d\n", __func__, chan);
continue;
case ENOENT:
DPRINTF(sc, IWN_DEBUG_RESET,
"%s: skip chan %d, extension channel not found\n",
__func__, chan);
continue;
case ENOBUFS:
device_printf(sc->sc_dev,
"%s: channel table is full!\n", __func__);
break;
case 0:
DPRINTF(sc, IWN_DEBUG_RESET,
"add ht40 chan %d flags 0x%x maxpwr %d\n",
chan, channels[i].flags, channels[i].maxpwr);
/* FALLTHROUGH */
default:
break;
}
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
}
static void
iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr)
{
struct ieee80211com *ic = &sc->sc_ic;
iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n],
iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan));
if (n < 5) {
iwn_read_eeprom_band(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
ic->ic_channels);
} else {
iwn_read_eeprom_ht40(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
ic->ic_channels);
}
ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
}
static struct iwn_eeprom_chan *
iwn_find_eeprom_channel(struct iwn_softc *sc, struct ieee80211_channel *c)
{
int band, chan, i, j;
if (IEEE80211_IS_CHAN_HT40(c)) {
band = IEEE80211_IS_CHAN_5GHZ(c) ? 6 : 5;
if (IEEE80211_IS_CHAN_HT40D(c))
chan = c->ic_extieee;
else
chan = c->ic_ieee;
for (i = 0; i < iwn_bands[band].nchan; i++) {
if (iwn_bands[band].chan[i] == chan)
return &sc->eeprom_channels[band][i];
}
} else {
for (j = 0; j < 5; j++) {
for (i = 0; i < iwn_bands[j].nchan; i++) {
if (iwn_bands[j].chan[i] == c->ic_ieee &&
((j == 0) ^ IEEE80211_IS_CHAN_A(c)) == 1)
return &sc->eeprom_channels[j][i];
}
}
}
return NULL;
}
static void
iwn_getradiocaps(struct ieee80211com *ic,
int maxchans, int *nchans, struct ieee80211_channel chans[])
{
struct iwn_softc *sc = ic->ic_softc;
int i;
/* Parse the list of authorized channels. */
for (i = 0; i < 5 && *nchans < maxchans; i++)
iwn_read_eeprom_band(sc, i, maxchans, nchans, chans);
for (i = 5; i < IWN_NBANDS - 1 && *nchans < maxchans; i++)
iwn_read_eeprom_ht40(sc, i, maxchans, nchans, chans);
}
/*
* Enforce flags read from EEPROM.
*/
static int
iwn_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd,
int nchan, struct ieee80211_channel chans[])
{
struct iwn_softc *sc = ic->ic_softc;
int i;
for (i = 0; i < nchan; i++) {
struct ieee80211_channel *c = &chans[i];
struct iwn_eeprom_chan *channel;
channel = iwn_find_eeprom_channel(sc, c);
if (channel == NULL) {
ic_printf(ic, "%s: invalid channel %u freq %u/0x%x\n",
__func__, c->ic_ieee, c->ic_freq, c->ic_flags);
return EINVAL;
}
c->ic_flags |= iwn_eeprom_channel_flags(channel);
}
return 0;
}
static void
iwn_read_eeprom_enhinfo(struct iwn_softc *sc)
{
struct iwn_eeprom_enhinfo enhinfo[35];
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_channel *c;
uint16_t val, base;
int8_t maxpwr;
uint8_t flags;
int i, j;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
base = le16toh(val);
iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO,
enhinfo, sizeof enhinfo);
for (i = 0; i < nitems(enhinfo); i++) {
flags = enhinfo[i].flags;
if (!(flags & IWN_ENHINFO_VALID))
continue; /* Skip invalid entries. */
maxpwr = 0;
if (sc->txchainmask & IWN_ANT_A)
maxpwr = MAX(maxpwr, enhinfo[i].chain[0]);
if (sc->txchainmask & IWN_ANT_B)
maxpwr = MAX(maxpwr, enhinfo[i].chain[1]);
if (sc->txchainmask & IWN_ANT_C)
maxpwr = MAX(maxpwr, enhinfo[i].chain[2]);
if (sc->ntxchains == 2)
maxpwr = MAX(maxpwr, enhinfo[i].mimo2);
else if (sc->ntxchains == 3)
maxpwr = MAX(maxpwr, enhinfo[i].mimo3);
for (j = 0; j < ic->ic_nchans; j++) {
c = &ic->ic_channels[j];
if ((flags & IWN_ENHINFO_5GHZ)) {
if (!IEEE80211_IS_CHAN_A(c))
continue;
} else if ((flags & IWN_ENHINFO_OFDM)) {
if (!IEEE80211_IS_CHAN_G(c))
continue;
} else if (!IEEE80211_IS_CHAN_B(c))
continue;
if ((flags & IWN_ENHINFO_HT40)) {
if (!IEEE80211_IS_CHAN_HT40(c))
continue;
} else {
if (IEEE80211_IS_CHAN_HT40(c))
continue;
}
if (enhinfo[i].chan != 0 &&
enhinfo[i].chan != c->ic_ieee)
continue;
DPRINTF(sc, IWN_DEBUG_RESET,
"channel %d(%x), maxpwr %d\n", c->ic_ieee,
c->ic_flags, maxpwr / 2);
c->ic_maxregpower = maxpwr / 2;
c->ic_maxpower = maxpwr;
}
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
}
static struct ieee80211_node *
iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct iwn_node *wn;
wn = malloc(sizeof (struct iwn_node), M_80211_NODE, M_NOWAIT | M_ZERO);
if (wn == NULL)
return (NULL);
wn->id = IWN_ID_UNDEFINED;
return (&wn->ni);
}
static __inline int
rate2plcp(int rate)
{
switch (rate & 0xff) {
case 12: return 0xd;
case 18: return 0xf;
case 24: return 0x5;
case 36: return 0x7;
case 48: return 0x9;
case 72: return 0xb;
case 96: return 0x1;
case 108: return 0x3;
case 2: return 10;
case 4: return 20;
case 11: return 55;
case 22: return 110;
}
return 0;
}
static __inline uint8_t
plcp2rate(const uint8_t rate_plcp)
{
switch (rate_plcp) {
case 0xd: return 12;
case 0xf: return 18;
case 0x5: return 24;
case 0x7: return 36;
case 0x9: return 48;
case 0xb: return 72;
case 0x1: return 96;
case 0x3: return 108;
case 10: return 2;
case 20: return 4;
case 55: return 11;
case 110: return 22;
default: return 0;
}
}
static int
iwn_get_1stream_tx_antmask(struct iwn_softc *sc)
{
return IWN_LSB(sc->txchainmask);
}
static int
iwn_get_2stream_tx_antmask(struct iwn_softc *sc)
{
int tx;
/*
* The '2 stream' setup is a bit .. odd.
*
* For NICs that support only 1 antenna, default to IWN_ANT_AB or
* the firmware panics (eg Intel 5100.)
*
* For NICs that support two antennas, we use ANT_AB.
*
* For NICs that support three antennas, we use the two that
* wasn't the default one.
*
* XXX TODO: if bluetooth (full concurrent) is enabled, restrict
* this to only one antenna.
*/
/* Default - transmit on the other antennas */
tx = (sc->txchainmask & ~IWN_LSB(sc->txchainmask));
/* Now, if it's zero, set it to IWN_ANT_AB, so to not panic firmware */
if (tx == 0)
tx = IWN_ANT_AB;
/*
* If the NIC is a two-stream TX NIC, configure the TX mask to
* the default chainmask
*/
else if (sc->ntxchains == 2)
tx = sc->txchainmask;
return (tx);
}
/*
* Calculate the required PLCP value from the given rate,
* to the given node.
*
* This will take the node configuration (eg 11n, rate table
* setup, etc) into consideration.
*/
static uint32_t
iwn_rate_to_plcp(struct iwn_softc *sc, struct ieee80211_node *ni,
uint8_t rate)
{
struct ieee80211com *ic = ni->ni_ic;
uint32_t plcp = 0;
int ridx;
/*
* If it's an MCS rate, let's set the plcp correctly
* and set the relevant flags based on the node config.
*/
if (rate & IEEE80211_RATE_MCS) {
/*
* Set the initial PLCP value to be between 0->31 for
* MCS 0 -> MCS 31, then set the "I'm an MCS rate!"
* flag.
*/
plcp = IEEE80211_RV(rate) | IWN_RFLAG_MCS;
/*
* XXX the following should only occur if both
* the local configuration _and_ the remote node
* advertise these capabilities. Thus this code
* may need fixing!
*/
/*
* Set the channel width and guard interval.
*/
if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
plcp |= IWN_RFLAG_HT40;
if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40)
plcp |= IWN_RFLAG_SGI;
} else if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) {
plcp |= IWN_RFLAG_SGI;
}
/*
* Ensure the selected rate matches the link quality
* table entries being used.
*/
if (rate > 0x8f)
plcp |= IWN_RFLAG_ANT(sc->txchainmask);
else if (rate > 0x87)
plcp |= IWN_RFLAG_ANT(iwn_get_2stream_tx_antmask(sc));
else
plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc));
} else {
/*
* Set the initial PLCP - fine for both
* OFDM and CCK rates.
*/
plcp = rate2plcp(rate);
/* Set CCK flag if it's CCK */
/* XXX It would be nice to have a method
* to map the ridx -> phy table entry
* so we could just query that, rather than
* this hack to check against IWN_RIDX_OFDM6.
*/
ridx = ieee80211_legacy_rate_lookup(ic->ic_rt,
rate & IEEE80211_RATE_VAL);
if (ridx < IWN_RIDX_OFDM6 &&
IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
plcp |= IWN_RFLAG_CCK;
/* Set antenna configuration */
/* XXX TODO: is this the right antenna to use for legacy? */
plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc));
}
DPRINTF(sc, IWN_DEBUG_TXRATE, "%s: rate=0x%02x, plcp=0x%08x\n",
__func__,
rate,
plcp);
return (htole32(plcp));
}
static void
iwn_newassoc(struct ieee80211_node *ni, int isnew)
{
/* Doesn't do anything at the moment */
}
static int
iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct iwn_vap *ivp = IWN_VAP(vap);
struct ieee80211com *ic = vap->iv_ic;
struct iwn_softc *sc = ic->ic_softc;
int error = 0;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__,
ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]);
IEEE80211_UNLOCK(ic);
IWN_LOCK(sc);
callout_stop(&sc->calib_to);
sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
switch (nstate) {
case IEEE80211_S_ASSOC:
if (vap->iv_state != IEEE80211_S_RUN)
break;
/* FALLTHROUGH */
case IEEE80211_S_AUTH:
if (vap->iv_state == IEEE80211_S_AUTH)
break;
/*
* !AUTH -> AUTH transition requires state reset to handle
* reassociations correctly.
*/
sc->rxon->associd = 0;
sc->rxon->filter &= ~htole32(IWN_FILTER_BSS);
sc->calib.state = IWN_CALIB_STATE_INIT;
/* Wait until we hear a beacon before we transmit */
if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan))
sc->sc_beacon_wait = 1;
if ((error = iwn_auth(sc, vap)) != 0) {
device_printf(sc->sc_dev,
"%s: could not move to auth state\n", __func__);
}
break;
case IEEE80211_S_RUN:
/*
* RUN -> RUN transition; Just restart the timers.
*/
if (vap->iv_state == IEEE80211_S_RUN) {
sc->calib_cnt = 0;
break;
}
/* Wait until we hear a beacon before we transmit */
if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan))
sc->sc_beacon_wait = 1;
/*
* !RUN -> RUN requires setting the association id
* which is done with a firmware cmd. We also defer
* starting the timers until that work is done.
*/
if ((error = iwn_run(sc, vap)) != 0) {
device_printf(sc->sc_dev,
"%s: could not move to run state\n", __func__);
}
break;
case IEEE80211_S_INIT:
sc->calib.state = IWN_CALIB_STATE_INIT;
/*
* Purge the xmit queue so we don't have old frames
* during a new association attempt.
*/
sc->sc_beacon_wait = 0;
iwn_xmit_queue_drain(sc);
break;
default:
break;
}
IWN_UNLOCK(sc);
IEEE80211_LOCK(ic);
if (error != 0){
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__);
return error;
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return ivp->iv_newstate(vap, nstate, arg);
}
static void
iwn_calib_timeout(void *arg)
{
struct iwn_softc *sc = arg;
IWN_LOCK_ASSERT(sc);
/* Force automatic TX power calibration every 60 secs. */
if (++sc->calib_cnt >= 120) {
uint32_t flags = 0;
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n",
"sending request for statistics");
(void)iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags,
sizeof flags, 1);
sc->calib_cnt = 0;
}
callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout,
sc);
}
/*
* Process an RX_PHY firmware notification. This is usually immediately
* followed by an MPDU_RX_DONE notification.
*/
static void
iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc)
{
struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__);
/* Save RX statistics, they will be used on MPDU_RX_DONE. */
memcpy(&sc->last_rx_stat, stat, sizeof (*stat));
sc->last_rx_valid = 1;
}
/*
* Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification.
* Each MPDU_RX_DONE notification must be preceded by an RX_PHY one.
*/
static void
iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
struct iwn_rx_data *data)
{
struct epoch_tracker et;
struct iwn_ops *ops = &sc->ops;
struct ieee80211com *ic = &sc->sc_ic;
struct iwn_rx_ring *ring = &sc->rxq;
struct ieee80211_frame_min *wh;
struct ieee80211_node *ni;
struct mbuf *m, *m1;
struct iwn_rx_stat *stat;
caddr_t head;
bus_addr_t paddr;
uint32_t flags;
int error, len, rssi, nf;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
if (desc->type == IWN_MPDU_RX_DONE) {
/* Check for prior RX_PHY notification. */
if (!sc->last_rx_valid) {
DPRINTF(sc, IWN_DEBUG_ANY,
"%s: missing RX_PHY\n", __func__);
return;
}
stat = &sc->last_rx_stat;
} else
stat = (struct iwn_rx_stat *)(desc + 1);
if (stat->cfg_phy_len > IWN_STAT_MAXLEN) {
device_printf(sc->sc_dev,
"%s: invalid RX statistic header, len %d\n", __func__,
stat->cfg_phy_len);
return;
}
if (desc->type == IWN_MPDU_RX_DONE) {
struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1);
head = (caddr_t)(mpdu + 1);
len = le16toh(mpdu->len);
} else {
head = (caddr_t)(stat + 1) + stat->cfg_phy_len;
len = le16toh(stat->len);
}
flags = le32toh(*(uint32_t *)(head + len));
/* Discard frames with a bad FCS early. */
if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) {
DPRINTF(sc, IWN_DEBUG_RECV, "%s: RX flags error %x\n",
__func__, flags);
counter_u64_add(ic->ic_ierrors, 1);
return;
}
/* Discard frames that are too short. */
if (len < sizeof (struct ieee80211_frame_ack)) {
DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n",
__func__, len);
counter_u64_add(ic->ic_ierrors, 1);
return;
}
m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, IWN_RBUF_SIZE);
if (m1 == NULL) {
DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n",
__func__);
counter_u64_add(ic->ic_ierrors, 1);
return;
}
bus_dmamap_unload(ring->data_dmat, data->map);
error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *),
IWN_RBUF_SIZE, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
if (error != 0 && error != EFBIG) {
device_printf(sc->sc_dev,
"%s: bus_dmamap_load failed, error %d\n", __func__, error);
m_freem(m1);
/* Try to reload the old mbuf. */
error = bus_dmamap_load(ring->data_dmat, data->map,
mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr,
&paddr, BUS_DMA_NOWAIT);
if (error != 0 && error != EFBIG) {
panic("%s: could not load old RX mbuf", __func__);
}
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_PREREAD);
/* Physical address may have changed. */
ring->desc[ring->cur] = htole32(paddr >> 8);
bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
BUS_DMASYNC_PREWRITE);
counter_u64_add(ic->ic_ierrors, 1);
return;
}
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_PREREAD);
m = data->m;
data->m = m1;
/* Update RX descriptor. */
ring->desc[ring->cur] = htole32(paddr >> 8);
bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
BUS_DMASYNC_PREWRITE);
/* Finalize mbuf. */
m->m_data = head;
m->m_pkthdr.len = m->m_len = len;
/* Grab a reference to the source node. */
wh = mtod(m, struct ieee80211_frame_min *);
if (len >= sizeof(struct ieee80211_frame_min))
ni = ieee80211_find_rxnode(ic, wh);
else
ni = NULL;
nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN &&
(ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95;
rssi = ops->get_rssi(sc, stat);
if (ieee80211_radiotap_active(ic)) {
struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap;
uint32_t rate = le32toh(stat->rate);
tap->wr_flags = 0;
if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE))
tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
tap->wr_dbm_antsignal = (int8_t)rssi;
tap->wr_dbm_antnoise = (int8_t)nf;
tap->wr_tsft = stat->tstamp;
if (rate & IWN_RFLAG_MCS) {
tap->wr_rate = rate & IWN_RFLAG_RATE_MCS;
tap->wr_rate |= IEEE80211_RATE_MCS;
} else
tap->wr_rate = plcp2rate(rate & IWN_RFLAG_RATE);
}
/*
* If it's a beacon and we're waiting, then do the
* wakeup. This should unblock raw_xmit/start.
*/
if (sc->sc_beacon_wait) {
uint8_t type, subtype;
/* NB: Re-assign wh */
wh = mtod(m, struct ieee80211_frame_min *);
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
/*
* This assumes at this point we've received our own
* beacon.
*/
DPRINTF(sc, IWN_DEBUG_TRACE,
"%s: beacon_wait, type=%d, subtype=%d\n",
__func__, type, subtype);
if (type == IEEE80211_FC0_TYPE_MGT &&
subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT,
"%s: waking things up\n", __func__);
/* queue taskqueue to transmit! */
taskqueue_enqueue(sc->sc_tq, &sc->sc_xmit_task);
}
}
IWN_UNLOCK(sc);
NET_EPOCH_ENTER(et);
/* Send the frame to the 802.11 layer. */
if (ni != NULL) {
if (ni->ni_flags & IEEE80211_NODE_HT)
m->m_flags |= M_AMPDU;
(void)ieee80211_input(ni, m, rssi - nf, nf);
/* Node is no longer needed. */
ieee80211_free_node(ni);
} else
(void)ieee80211_input_all(ic, m, rssi - nf, nf);
NET_EPOCH_EXIT(et);
IWN_LOCK(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
}
static void
iwn_agg_tx_complete(struct iwn_softc *sc, struct iwn_tx_ring *ring, int tid,
int idx, int success)
{
struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs;
struct iwn_tx_data *data = &ring->data[idx];
struct iwn_node *wn;
struct mbuf *m;
struct ieee80211_node *ni;
KASSERT(data->ni != NULL, ("idx %d: no node", idx));
KASSERT(data->m != NULL, ("idx %d: no mbuf", idx));
/* Unmap and free mbuf. */
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(ring->data_dmat, data->map);
m = data->m, data->m = NULL;
ni = data->ni, data->ni = NULL;
wn = (void *)ni;
#if 0
/* XXX causes significant performance degradation. */
txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY |
IEEE80211_RATECTL_STATUS_LONG_RETRY;
txs->long_retries = data->long_retries - 1;
#else
txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY;
#endif
txs->short_retries = wn->agg[tid].short_retries;
if (success)
txs->status = IEEE80211_RATECTL_TX_SUCCESS;
else
txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED;
wn->agg[tid].short_retries = 0;
data->long_retries = 0;
DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: freeing m %p ni %p idx %d qid %d\n",
__func__, m, ni, idx, ring->qid);
ieee80211_ratectl_tx_complete(ni, txs);
ieee80211_tx_complete(ni, m, !success);
}
/* Process an incoming Compressed BlockAck. */
static void
iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc)
{
struct iwn_tx_ring *ring;
struct iwn_tx_data *data;
struct iwn_node *wn;
struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1);
struct ieee80211_tx_ampdu *tap;
uint64_t bitmap;
uint8_t tid;
int i, qid, shift;
int tx_ok = 0;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
qid = le16toh(ba->qid);
tap = sc->qid2tap[qid];
ring = &sc->txq[qid];
tid = tap->txa_tid;
wn = (void *)tap->txa_ni;
DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: qid %d tid %d seq %04X ssn %04X\n"
"bitmap: ba %016jX wn %016jX, start %d\n",
__func__, qid, tid, le16toh(ba->seq), le16toh(ba->ssn),
(uintmax_t)le64toh(ba->bitmap), (uintmax_t)wn->agg[tid].bitmap,
wn->agg[tid].startidx);
if (wn->agg[tid].bitmap == 0)
return;
shift = wn->agg[tid].startidx - ((le16toh(ba->seq) >> 4) & 0xff);
if (shift <= -64)
shift += 0x100;
/*
* Walk the bitmap and calculate how many successful attempts
* are made.
*
* Yes, the rate control code doesn't know these are A-MPDU
* subframes; due to that long_retries stats are not used here.
*/
bitmap = le64toh(ba->bitmap);
if (shift >= 0)
bitmap >>= shift;
else
bitmap <<= -shift;
bitmap &= wn->agg[tid].bitmap;
wn->agg[tid].bitmap = 0;
for (i = wn->agg[tid].startidx;
bitmap;
bitmap >>= 1, i = (i + 1) % IWN_TX_RING_COUNT) {
if ((bitmap & 1) == 0)
continue;
data = &ring->data[i];
if (__predict_false(data->m == NULL)) {
/*
* There is no frame; skip this entry.
*
* NB: it is "ok" to have both
* 'tx done' + 'compressed BA' replies for frame
* with STATE_SCD_QUERY status.
*/
DPRINTF(sc, IWN_DEBUG_AMPDU,
"%s: ring %d: no entry %d\n", __func__, qid, i);
continue;
}
tx_ok++;
iwn_agg_tx_complete(sc, ring, tid, i, 1);
}
ring->queued -= tx_ok;
iwn_check_tx_ring(sc, qid);
DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_AMPDU,
"->%s: end; %d ok\n",__func__, tx_ok);
}
/*
* Process a CALIBRATION_RESULT notification sent by the initialization
* firmware on response to a CMD_CALIB_CONFIG command (5000 only).
*/
static void
iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc)
{
struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1);
int len, idx = -1;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Runtime firmware should not send such a notification. */
if (sc->sc_flags & IWN_FLAG_CALIB_DONE){
DPRINTF(sc, IWN_DEBUG_TRACE,
"->%s received after calib done\n", __func__);
return;
}
len = (le32toh(desc->len) & 0x3fff) - 4;
switch (calib->code) {
case IWN5000_PHY_CALIB_DC:
if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_DC)
idx = 0;
break;
case IWN5000_PHY_CALIB_LO:
if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_LO)
idx = 1;
break;
case IWN5000_PHY_CALIB_TX_IQ:
if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ)
idx = 2;
break;
case IWN5000_PHY_CALIB_TX_IQ_PERIODIC:
if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ_PERIODIC)
idx = 3;
break;
case IWN5000_PHY_CALIB_BASE_BAND:
if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_BASE_BAND)
idx = 4;
break;
}
if (idx == -1) /* Ignore other results. */
return;
/* Save calibration result. */
if (sc->calibcmd[idx].buf != NULL)
free(sc->calibcmd[idx].buf, M_DEVBUF);
sc->calibcmd[idx].buf = malloc(len, M_DEVBUF, M_NOWAIT);
if (sc->calibcmd[idx].buf == NULL) {
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"not enough memory for calibration result %d\n",
calib->code);
return;
}
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"saving calibration result idx=%d, code=%d len=%d\n", idx, calib->code, len);
sc->calibcmd[idx].len = len;
memcpy(sc->calibcmd[idx].buf, calib, len);
}
static void
iwn_stats_update(struct iwn_softc *sc, struct iwn_calib_state *calib,
struct iwn_stats *stats, int len)
{
struct iwn_stats_bt *stats_bt;
struct iwn_stats *lstats;
/*
* First - check whether the length is the bluetooth or normal.
*
* If it's normal - just copy it and bump out.
* Otherwise we have to convert things.
*/
if (len == sizeof(struct iwn_stats) + 4) {
memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats));
sc->last_stat_valid = 1;
return;
}
/*
* If it's not the bluetooth size - log, then just copy.
*/
if (len != sizeof(struct iwn_stats_bt) + 4) {
DPRINTF(sc, IWN_DEBUG_STATS,
"%s: size of rx statistics (%d) not an expected size!\n",
__func__,
len);
memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats));
sc->last_stat_valid = 1;
return;
}
/*
* Ok. Time to copy.
*/
stats_bt = (struct iwn_stats_bt *) stats;
lstats = &sc->last_stat;
/* flags */
lstats->flags = stats_bt->flags;
/* rx_bt */
memcpy(&lstats->rx.ofdm, &stats_bt->rx_bt.ofdm,
sizeof(struct iwn_rx_phy_stats));
memcpy(&lstats->rx.cck, &stats_bt->rx_bt.cck,
sizeof(struct iwn_rx_phy_stats));
memcpy(&lstats->rx.general, &stats_bt->rx_bt.general_bt.common,
sizeof(struct iwn_rx_general_stats));
memcpy(&lstats->rx.ht, &stats_bt->rx_bt.ht,
sizeof(struct iwn_rx_ht_phy_stats));
/* tx */
memcpy(&lstats->tx, &stats_bt->tx,
sizeof(struct iwn_tx_stats));
/* general */
memcpy(&lstats->general, &stats_bt->general,
sizeof(struct iwn_general_stats));
/* XXX TODO: Squirrel away the extra bluetooth stats somewhere */
sc->last_stat_valid = 1;
}
/*
* Process an RX_STATISTICS or BEACON_STATISTICS firmware notification.
* The latter is sent by the firmware after each received beacon.
*/
static void
iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc)
{
struct iwn_ops *ops = &sc->ops;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
struct iwn_calib_state *calib = &sc->calib;
struct iwn_stats *stats = (struct iwn_stats *)(desc + 1);
struct iwn_stats *lstats;
int temp;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Ignore statistics received during a scan. */
if (vap->iv_state != IEEE80211_S_RUN ||
(ic->ic_flags & IEEE80211_F_SCAN)){
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s received during calib\n",
__func__);
return;
}
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_STATS,
"%s: received statistics, cmd %d, len %d\n",
__func__, desc->type, le16toh(desc->len));
sc->calib_cnt = 0; /* Reset TX power calibration timeout. */
/*
* Collect/track general statistics for reporting.
*
* This takes care of ensuring that the bluetooth sized message
* will be correctly converted to the legacy sized message.
*/
iwn_stats_update(sc, calib, stats, le16toh(desc->len));
/*
* And now, let's take a reference of it to use!
*/
lstats = &sc->last_stat;
/* Test if temperature has changed. */
if (lstats->general.temp != sc->rawtemp) {
/* Convert "raw" temperature to degC. */
sc->rawtemp = stats->general.temp;
temp = ops->get_temperature(sc);
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n",
__func__, temp);
/* Update TX power if need be (4965AGN only). */
if (sc->hw_type == IWN_HW_REV_TYPE_4965)
iwn4965_power_calibration(sc, temp);
}
if (desc->type != IWN_BEACON_STATISTICS)
return; /* Reply to a statistics request. */
sc->noise = iwn_get_noise(&lstats->rx.general);
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise);
/* Test that RSSI and noise are present in stats report. */
if (le32toh(lstats->rx.general.flags) != 1) {
DPRINTF(sc, IWN_DEBUG_ANY, "%s\n",
"received statistics without RSSI");
return;
}
if (calib->state == IWN_CALIB_STATE_ASSOC)
iwn_collect_noise(sc, &lstats->rx.general);
else if (calib->state == IWN_CALIB_STATE_RUN) {
iwn_tune_sensitivity(sc, &lstats->rx);
/*
* XXX TODO: Only run the RX recovery if we're associated!
*/
iwn_check_rx_recovery(sc, lstats);
iwn_save_stats_counters(sc, lstats);
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
}
/*
* Save the relevant statistic counters for the next calibration
* pass.
*/
static void
iwn_save_stats_counters(struct iwn_softc *sc, const struct iwn_stats *rs)
{
struct iwn_calib_state *calib = &sc->calib;
/* Save counters values for next call. */
calib->bad_plcp_cck = le32toh(rs->rx.cck.bad_plcp);
calib->fa_cck = le32toh(rs->rx.cck.fa);
calib->bad_plcp_ht = le32toh(rs->rx.ht.bad_plcp);
calib->bad_plcp_ofdm = le32toh(rs->rx.ofdm.bad_plcp);
calib->fa_ofdm = le32toh(rs->rx.ofdm.fa);
/* Last time we received these tick values */
sc->last_calib_ticks = ticks;
}
/*
* Process a TX_DONE firmware notification. Unfortunately, the 4965AGN
* and 5000 adapters have different incompatible TX status formats.
*/
static void
iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
struct iwn_rx_data *data)
{
struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1);
int qid = desc->qid & IWN_RX_DESC_QID_MSK;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
"qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n",
__func__, desc->qid, desc->idx,
stat->rtsfailcnt,
stat->ackfailcnt,
stat->btkillcnt,
stat->rate, le16toh(stat->duration),
le32toh(stat->status));
if (qid >= sc->firstaggqueue && stat->nframes != 1) {
iwn_ampdu_tx_done(sc, qid, stat->nframes, stat->rtsfailcnt,
&stat->status);
} else {
iwn_tx_done(sc, desc, stat->rtsfailcnt, stat->ackfailcnt,
le32toh(stat->status) & 0xff);
}
}
static void
iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
struct iwn_rx_data *data)
{
struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1);
int qid = desc->qid & IWN_RX_DESC_QID_MSK;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
"qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n",
__func__, desc->qid, desc->idx,
stat->rtsfailcnt,
stat->ackfailcnt,
stat->btkillcnt,
stat->rate, le16toh(stat->duration),
le32toh(stat->status));
#ifdef notyet
/* Reset TX scheduler slot. */
iwn5000_reset_sched(sc, qid, desc->idx);
#endif
if (qid >= sc->firstaggqueue && stat->nframes != 1) {
iwn_ampdu_tx_done(sc, qid, stat->nframes, stat->rtsfailcnt,
&stat->status);
} else {
iwn_tx_done(sc, desc, stat->rtsfailcnt, stat->ackfailcnt,
le16toh(stat->status) & 0xff);
}
}
static void
iwn_adj_ampdu_ptr(struct iwn_softc *sc, struct iwn_tx_ring *ring)
{
int i;
for (i = ring->read; i != ring->cur; i = (i + 1) % IWN_TX_RING_COUNT) {
struct iwn_tx_data *data = &ring->data[i];
if (data->m != NULL)
break;
data->remapped = 0;
}
ring->read = i;
}
/*
* Adapter-independent backend for TX_DONE firmware notifications.
*/
static void
iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int rtsfailcnt,
int ackfailcnt, uint8_t status)
{
struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs;
struct iwn_tx_ring *ring = &sc->txq[desc->qid & IWN_RX_DESC_QID_MSK];
struct iwn_tx_data *data = &ring->data[desc->idx];
struct mbuf *m;
struct ieee80211_node *ni;
if (__predict_false(data->m == NULL &&
ring->qid >= sc->firstaggqueue)) {
/*
* There is no frame; skip this entry.
*/
DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: ring %d: no entry %d\n",
__func__, ring->qid, desc->idx);
return;
}
KASSERT(data->ni != NULL, ("no node"));
KASSERT(data->m != NULL, ("no mbuf"));
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Unmap and free mbuf. */
bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(ring->data_dmat, data->map);
m = data->m, data->m = NULL;
ni = data->ni, data->ni = NULL;
data->long_retries = 0;
if (ring->qid >= sc->firstaggqueue)
iwn_adj_ampdu_ptr(sc, ring);
/*
* XXX f/w may hang (device timeout) when desc->idx - ring->read == 64
* (aggregation queues only).
*/
ring->queued--;
iwn_check_tx_ring(sc, ring->qid);
/*
* Update rate control statistics for the node.
*/
txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY |
IEEE80211_RATECTL_STATUS_LONG_RETRY;
txs->short_retries = rtsfailcnt;
txs->long_retries = ackfailcnt;
if (!(status & IWN_TX_FAIL))
txs->status = IEEE80211_RATECTL_TX_SUCCESS;
else {
switch (status) {
case IWN_TX_FAIL_SHORT_LIMIT:
txs->status = IEEE80211_RATECTL_TX_FAIL_SHORT;
break;
case IWN_TX_FAIL_LONG_LIMIT:
txs->status = IEEE80211_RATECTL_TX_FAIL_LONG;
break;
case IWN_TX_STATUS_FAIL_LIFE_EXPIRE:
txs->status = IEEE80211_RATECTL_TX_FAIL_EXPIRED;
break;
default:
txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED;
break;
}
}
ieee80211_ratectl_tx_complete(ni, txs);
/*
* Channels marked for "radar" require traffic to be received
* to unlock before we can transmit. Until traffic is seen
* any attempt to transmit is returned immediately with status
* set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily
* happen on first authenticate after scanning. To workaround
* this we ignore a failure of this sort in AUTH state so the
* 802.11 layer will fall back to using a timeout to wait for
* the AUTH reply. This allows the firmware time to see
* traffic so a subsequent retry of AUTH succeeds. It's
* unclear why the firmware does not maintain state for
* channels recently visited as this would allow immediate
* use of the channel after a scan (where we see traffic).
*/
if (status == IWN_TX_FAIL_TX_LOCKED &&
ni->ni_vap->iv_state == IEEE80211_S_AUTH)
ieee80211_tx_complete(ni, m, 0);
else
ieee80211_tx_complete(ni, m,
(status & IWN_TX_FAIL) != 0);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
}
/*
* Process a "command done" firmware notification. This is where we wakeup
* processes waiting for a synchronous command completion.
*/
static void
iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc)
{
struct iwn_tx_ring *ring;
struct iwn_tx_data *data;
int cmd_queue_num;
if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT)
cmd_queue_num = IWN_PAN_CMD_QUEUE;
else
cmd_queue_num = IWN_CMD_QUEUE_NUM;
if ((desc->qid & IWN_RX_DESC_QID_MSK) != cmd_queue_num)
return; /* Not a command ack. */
ring = &sc->txq[cmd_queue_num];
data = &ring->data[desc->idx];
/* If the command was mapped in an mbuf, free it. */
if (data->m != NULL) {
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(ring->data_dmat, data->map);
m_freem(data->m);
data->m = NULL;
}
wakeup(&ring->desc[desc->idx]);
}
static int
iwn_ampdu_check_bitmap(uint64_t bitmap, int start, int idx)
{
int bit, shift;
bit = idx - start;
shift = 0;
if (bit >= 64) {
shift = 0x100 - bit;
bit = 0;
} else if (bit <= -64)
bit = 0x100 + bit;
else if (bit < 0) {
shift = -bit;
bit = 0;
}
if (bit - shift >= 64)
return (0);
return ((bitmap & (1ULL << (bit - shift))) != 0);
}
/*
* Firmware bug workaround: in case if 'retries' counter
* overflows 'seqno' field will be incremented:
* status|sequence|status|sequence|status|sequence
* 0000 0A48 0001 0A49 0000 0A6A
* 1000 0A48 1000 0A49 1000 0A6A
* 2000 0A48 2000 0A49 2000 0A6A
* ...
* E000 0A48 E000 0A49 E000 0A6A
* F000 0A48 F000 0A49 F000 0A6A
* 0000 0A49 0000 0A49 0000 0A6B
* 1000 0A49 1000 0A49 1000 0A6B
* ...
* D000 0A49 D000 0A49 D000 0A6B
* E000 0A49 E001 0A49 E000 0A6B
* F000 0A49 F001 0A49 F000 0A6B
* 0000 0A4A 0000 0A4B 0000 0A6A
* 1000 0A4A 1000 0A4B 1000 0A6A
* ...
*
* Odd 'seqno' numbers are incremened by 2 every 2 overflows.
* For even 'seqno' % 4 != 0 overflow is cyclic (0 -> +1 -> 0).
* Not checked with nretries >= 64.
*
*/
static int
iwn_ampdu_index_check(struct iwn_softc *sc, struct iwn_tx_ring *ring,
uint64_t bitmap, int start, int idx)
{
struct ieee80211com *ic = &sc->sc_ic;
struct iwn_tx_data *data;
int diff, min_retries, max_retries, new_idx, loop_end;
new_idx = idx - IWN_LONG_RETRY_LIMIT_LOG;
if (new_idx < 0)
new_idx += IWN_TX_RING_COUNT;
/*
* Corner case: check if retry count is not too big;
* reset device otherwise.
*/
if (!iwn_ampdu_check_bitmap(bitmap, start, new_idx)) {
data = &ring->data[new_idx];
if (data->long_retries > IWN_LONG_RETRY_LIMIT) {
device_printf(sc->sc_dev,
"%s: retry count (%d) for idx %d/%d overflow, "
"resetting...\n", __func__, data->long_retries,
ring->qid, new_idx);
ieee80211_restart_all(ic);
return (-1);
}
}
/* Correct index if needed. */
loop_end = idx;
do {
data = &ring->data[new_idx];
diff = idx - new_idx;
if (diff < 0)
diff += IWN_TX_RING_COUNT;
min_retries = IWN_LONG_RETRY_FW_OVERFLOW * diff;
if ((new_idx % 2) == 0)
max_retries = IWN_LONG_RETRY_FW_OVERFLOW * (diff + 1);
else
max_retries = IWN_LONG_RETRY_FW_OVERFLOW * (diff + 2);
if (!iwn_ampdu_check_bitmap(bitmap, start, new_idx) &&
((data->long_retries >= min_retries &&
data->long_retries < max_retries) ||
(diff == 1 &&
(new_idx & 0x03) == 0x02 &&
data->long_retries >= IWN_LONG_RETRY_FW_OVERFLOW))) {
DPRINTF(sc, IWN_DEBUG_AMPDU,
"%s: correcting index %d -> %d in queue %d"
" (retries %d)\n", __func__, idx, new_idx,
ring->qid, data->long_retries);
return (new_idx);
}
new_idx = (new_idx + 1) % IWN_TX_RING_COUNT;
} while (new_idx != loop_end);
return (idx);
}
static void
iwn_ampdu_tx_done(struct iwn_softc *sc, int qid, int nframes, int rtsfailcnt,
void *stat)
{
struct iwn_tx_ring *ring = &sc->txq[qid];
struct ieee80211_tx_ampdu *tap = sc->qid2tap[qid];
struct iwn_node *wn = (void *)tap->txa_ni;
struct iwn_tx_data *data;
uint64_t bitmap = 0;
uint16_t *aggstatus = stat;
uint8_t tid = tap->txa_tid;
int bit, i, idx, shift, start, tx_err;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
start = le16toh(*(aggstatus + nframes * 2)) & 0xff;
for (i = 0; i < nframes; i++) {
uint16_t status = le16toh(aggstatus[i * 2]);
if (status & IWN_AGG_TX_STATE_IGNORE_MASK)
continue;
idx = le16toh(aggstatus[i * 2 + 1]) & 0xff;
data = &ring->data[idx];
if (data->remapped) {
idx = iwn_ampdu_index_check(sc, ring, bitmap, start, idx);
if (idx == -1) {
/* skip error (device will be restarted anyway). */
continue;
}
/* Index may have changed. */
data = &ring->data[idx];
}
/*
* XXX Sometimes (rarely) some frames are excluded from events.
* XXX Due to that long_retries counter may be wrong.
*/
data->long_retries &= ~0x0f;
data->long_retries += IWN_AGG_TX_TRY_COUNT(status) + 1;
if (data->long_retries >= IWN_LONG_RETRY_FW_OVERFLOW) {
int diff, wrong_idx;
diff = data->long_retries / IWN_LONG_RETRY_FW_OVERFLOW;
wrong_idx = (idx + diff) % IWN_TX_RING_COUNT;
/*
* Mark the entry so the above code will check it
* next time.
*/
ring->data[wrong_idx].remapped = 1;
}
if (status & IWN_AGG_TX_STATE_UNDERRUN_MSK) {
/*
* NB: count retries but postpone - it was not
* transmitted.
*/
continue;
}
bit = idx - start;
shift = 0;
if (bit >= 64) {
shift = 0x100 - bit;
bit = 0;
} else if (bit <= -64)
bit = 0x100 + bit;
else if (bit < 0) {
shift = -bit;
bit = 0;
}
bitmap = bitmap << shift;
bitmap |= 1ULL << bit;
}
wn->agg[tid].startidx = start;
wn->agg[tid].bitmap = bitmap;
wn->agg[tid].short_retries = rtsfailcnt;
DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: nframes %d start %d bitmap %016jX\n",
__func__, nframes, start, (uintmax_t)bitmap);
i = ring->read;
for (tx_err = 0;
i != wn->agg[tid].startidx;
i = (i + 1) % IWN_TX_RING_COUNT) {
data = &ring->data[i];
data->remapped = 0;
if (data->m == NULL)
continue;
tx_err++;
iwn_agg_tx_complete(sc, ring, tid, i, 0);
}
ring->read = wn->agg[tid].startidx;
ring->queued -= tx_err;
iwn_check_tx_ring(sc, qid);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
}
/*
* Process an INT_FH_RX or INT_SW_RX interrupt.
*/
static void
iwn_notif_intr(struct iwn_softc *sc)
{
struct iwn_ops *ops = &sc->ops;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
uint16_t hw;
int is_stopped;
bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map,
BUS_DMASYNC_POSTREAD);
hw = le16toh(sc->rxq.stat->closed_count) & 0xfff;
while (sc->rxq.cur != hw) {
struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur];
struct iwn_rx_desc *desc;
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
desc = mtod(data->m, struct iwn_rx_desc *);
DPRINTF(sc, IWN_DEBUG_RECV,
"%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n",
__func__, sc->rxq.cur, desc->qid & IWN_RX_DESC_QID_MSK,
desc->idx, desc->flags, desc->type,
iwn_intr_str(desc->type), le16toh(desc->len));
if (!(desc->qid & IWN_UNSOLICITED_RX_NOTIF)) /* Reply to a command. */
iwn_cmd_done(sc, desc);
switch (desc->type) {
case IWN_RX_PHY:
iwn_rx_phy(sc, desc);
break;
case IWN_RX_DONE: /* 4965AGN only. */
case IWN_MPDU_RX_DONE:
/* An 802.11 frame has been received. */
iwn_rx_done(sc, desc, data);
is_stopped = (sc->sc_flags & IWN_FLAG_RUNNING) == 0;
if (__predict_false(is_stopped))
return;
break;
case IWN_RX_COMPRESSED_BA:
/* A Compressed BlockAck has been received. */
iwn_rx_compressed_ba(sc, desc);
break;
case IWN_TX_DONE:
/* An 802.11 frame has been transmitted. */
ops->tx_done(sc, desc, data);
break;
case IWN_RX_STATISTICS:
case IWN_BEACON_STATISTICS:
iwn_rx_statistics(sc, desc);
break;
case IWN_BEACON_MISSED:
{
struct iwn_beacon_missed *miss =
(struct iwn_beacon_missed *)(desc + 1);
int misses;
misses = le32toh(miss->consecutive);
DPRINTF(sc, IWN_DEBUG_STATE,
"%s: beacons missed %d/%d\n", __func__,
misses, le32toh(miss->total));
/*
* If more than 5 consecutive beacons are missed,
* reinitialize the sensitivity state machine.
*/
if (vap->iv_state == IEEE80211_S_RUN &&
(ic->ic_flags & IEEE80211_F_SCAN) == 0) {
if (misses > 5)
(void)iwn_init_sensitivity(sc);
if (misses >= vap->iv_bmissthreshold) {
IWN_UNLOCK(sc);
ieee80211_beacon_miss(ic);
IWN_LOCK(sc);
is_stopped = (sc->sc_flags &
IWN_FLAG_RUNNING) == 0;
if (__predict_false(is_stopped))
return;
}
}
break;
}
case IWN_UC_READY:
{
struct iwn_ucode_info *uc =
(struct iwn_ucode_info *)(desc + 1);
/* The microcontroller is ready. */
DPRINTF(sc, IWN_DEBUG_RESET,
"microcode alive notification version=%d.%d "
"subtype=%x alive=%x\n", uc->major, uc->minor,
uc->subtype, le32toh(uc->valid));
if (le32toh(uc->valid) != 1) {
device_printf(sc->sc_dev,
"microcontroller initialization failed");
break;
}
if (uc->subtype == IWN_UCODE_INIT) {
/* Save microcontroller report. */
memcpy(&sc->ucode_info, uc, sizeof (*uc));
}
/* Save the address of the error log in SRAM. */
sc->errptr = le32toh(uc->errptr);
break;
}
#ifdef IWN_DEBUG
case IWN_STATE_CHANGED:
{
/*
* State change allows hardware switch change to be
* noted. However, we handle this in iwn_intr as we
* get both the enable/disble intr.
*/
uint32_t *status = (uint32_t *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_INTR | IWN_DEBUG_STATE,
"state changed to %x\n",
le32toh(*status));
break;
}
case IWN_START_SCAN:
{
struct iwn_start_scan *scan =
(struct iwn_start_scan *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_ANY,
"%s: scanning channel %d status %x\n",
__func__, scan->chan, le32toh(scan->status));
break;
}
#endif
case IWN_STOP_SCAN:
{
#ifdef IWN_DEBUG
struct iwn_stop_scan *scan =
(struct iwn_stop_scan *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_STATE | IWN_DEBUG_SCAN,
"scan finished nchan=%d status=%d chan=%d\n",
scan->nchan, scan->status, scan->chan);
#endif
sc->sc_is_scanning = 0;
callout_stop(&sc->scan_timeout);
IWN_UNLOCK(sc);
ieee80211_scan_next(vap);
IWN_LOCK(sc);
is_stopped = (sc->sc_flags & IWN_FLAG_RUNNING) == 0;
if (__predict_false(is_stopped))
return;
break;
}
case IWN5000_CALIBRATION_RESULT:
iwn5000_rx_calib_results(sc, desc);
break;
case IWN5000_CALIBRATION_DONE:
sc->sc_flags |= IWN_FLAG_CALIB_DONE;
wakeup(sc);
break;
}
sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT;
}
/* Tell the firmware what we have processed. */
hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1;
IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7);
}
/*
* Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
* from power-down sleep mode.
*/
static void
iwn_wakeup_intr(struct iwn_softc *sc)
{
int qid;
DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n",
__func__);
/* Wakeup RX and TX rings. */
IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7);
for (qid = 0; qid < sc->ntxqs; qid++) {
struct iwn_tx_ring *ring = &sc->txq[qid];
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur);
}
}
static void
iwn_rftoggle_task(void *arg, int npending)
{
struct iwn_softc *sc = arg;
struct ieee80211com *ic = &sc->sc_ic;
uint32_t tmp;
IWN_LOCK(sc);
tmp = IWN_READ(sc, IWN_GP_CNTRL);
IWN_UNLOCK(sc);
device_printf(sc->sc_dev, "RF switch: radio %s\n",
(tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled");
if (!(tmp & IWN_GP_CNTRL_RFKILL)) {
ieee80211_suspend_all(ic);
/* Enable interrupts to get RF toggle notification. */
IWN_LOCK(sc);
IWN_WRITE(sc, IWN_INT, 0xffffffff);
IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
IWN_UNLOCK(sc);
} else
ieee80211_resume_all(ic);
}
/*
* Dump the error log of the firmware when a firmware panic occurs. Although
* we can't debug the firmware because it is neither open source nor free, it
* can help us to identify certain classes of problems.
*/
static void
iwn_fatal_intr(struct iwn_softc *sc)
{
struct iwn_fw_dump dump;
int i;
IWN_LOCK_ASSERT(sc);
/* Force a complete recalibration on next init. */
sc->sc_flags &= ~IWN_FLAG_CALIB_DONE;
/* Check that the error log address is valid. */
if (sc->errptr < IWN_FW_DATA_BASE ||
sc->errptr + sizeof (dump) >
IWN_FW_DATA_BASE + sc->fw_data_maxsz) {
printf("%s: bad firmware error log address 0x%08x\n", __func__,
sc->errptr);
return;
}
if (iwn_nic_lock(sc) != 0) {
printf("%s: could not read firmware error log\n", __func__);
return;
}
/* Read firmware error log from SRAM. */
iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump,
sizeof (dump) / sizeof (uint32_t));
iwn_nic_unlock(sc);
if (dump.valid == 0) {
printf("%s: firmware error log is empty\n", __func__);
return;
}
printf("firmware error log:\n");
printf(" error type = \"%s\" (0x%08X)\n",
(dump.id < nitems(iwn_fw_errmsg)) ?
iwn_fw_errmsg[dump.id] : "UNKNOWN",
dump.id);
printf(" program counter = 0x%08X\n", dump.pc);
printf(" source line = 0x%08X\n", dump.src_line);
printf(" error data = 0x%08X%08X\n",
dump.error_data[0], dump.error_data[1]);
printf(" branch link = 0x%08X%08X\n",
dump.branch_link[0], dump.branch_link[1]);
printf(" interrupt link = 0x%08X%08X\n",
dump.interrupt_link[0], dump.interrupt_link[1]);
printf(" time = %u\n", dump.time[0]);
/* Dump driver status (TX and RX rings) while we're here. */
printf("driver status:\n");
for (i = 0; i < sc->ntxqs; i++) {
struct iwn_tx_ring *ring = &sc->txq[i];
printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
i, ring->qid, ring->cur, ring->queued);
}
printf(" rx ring: cur=%d\n", sc->rxq.cur);
}
static void
iwn_intr(void *arg)
{
struct iwn_softc *sc = arg;
uint32_t r1, r2, tmp;
IWN_LOCK(sc);
/* Disable interrupts. */
IWN_WRITE(sc, IWN_INT_MASK, 0);
/* Read interrupts from ICT (fast) or from registers (slow). */
if (sc->sc_flags & IWN_FLAG_USE_ICT) {
bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map,
BUS_DMASYNC_POSTREAD);
tmp = 0;
while (sc->ict[sc->ict_cur] != 0) {
tmp |= sc->ict[sc->ict_cur];
sc->ict[sc->ict_cur] = 0; /* Acknowledge. */
sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT;
}
tmp = le32toh(tmp);
if (tmp == 0xffffffff) /* Shouldn't happen. */
tmp = 0;
else if (tmp & 0xc0000) /* Workaround a HW bug. */
tmp |= 0x8000;
r1 = (tmp & 0xff00) << 16 | (tmp & 0xff);
r2 = 0; /* Unused. */
} else {
r1 = IWN_READ(sc, IWN_INT);
if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) {
IWN_UNLOCK(sc);
return; /* Hardware gone! */
}
r2 = IWN_READ(sc, IWN_FH_INT);
}
DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=0x%08x reg2=0x%08x\n"
, r1, r2);
if (r1 == 0 && r2 == 0)
goto done; /* Interrupt not for us. */
/* Acknowledge interrupts. */
IWN_WRITE(sc, IWN_INT, r1);
if (!(sc->sc_flags & IWN_FLAG_USE_ICT))
IWN_WRITE(sc, IWN_FH_INT, r2);
if (r1 & IWN_INT_RF_TOGGLED) {
taskqueue_enqueue(sc->sc_tq, &sc->sc_rftoggle_task);
goto done;
}
if (r1 & IWN_INT_CT_REACHED) {
device_printf(sc->sc_dev, "%s: critical temperature reached!\n",
__func__);
}
if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) {
device_printf(sc->sc_dev, "%s: fatal firmware error\n",
__func__);
#ifdef IWN_DEBUG
iwn_debug_register(sc);
#endif
/* Dump firmware error log and stop. */
iwn_fatal_intr(sc);
taskqueue_enqueue(sc->sc_tq, &sc->sc_panic_task);
goto done;
}
if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) ||
(r2 & IWN_FH_INT_RX)) {
if (sc->sc_flags & IWN_FLAG_USE_ICT) {
if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX))
IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX);
IWN_WRITE_1(sc, IWN_INT_PERIODIC,
IWN_INT_PERIODIC_DIS);
iwn_notif_intr(sc);
if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) {
IWN_WRITE_1(sc, IWN_INT_PERIODIC,
IWN_INT_PERIODIC_ENA);
}
} else
iwn_notif_intr(sc);
}
if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) {
if (sc->sc_flags & IWN_FLAG_USE_ICT)
IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX);
wakeup(sc); /* FH DMA transfer completed. */
}
if (r1 & IWN_INT_ALIVE)
wakeup(sc); /* Firmware is alive. */
if (r1 & IWN_INT_WAKEUP)
iwn_wakeup_intr(sc);
done:
/* Re-enable interrupts. */
if (sc->sc_flags & IWN_FLAG_RUNNING)
IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
IWN_UNLOCK(sc);
}
/*
* Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and
* 5000 adapters use a slightly different format).
*/
static void
iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
uint16_t len)
{
uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx];
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
*w = htole16(len + 8);
bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
BUS_DMASYNC_PREWRITE);
if (idx < IWN_SCHED_WINSZ) {
*(w + IWN_TX_RING_COUNT) = *w;
bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
BUS_DMASYNC_PREWRITE);
}
}
static void
iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
uint16_t len)
{
uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
*w = htole16(id << 12 | (len + 8));
bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
BUS_DMASYNC_PREWRITE);
if (idx < IWN_SCHED_WINSZ) {
*(w + IWN_TX_RING_COUNT) = *w;
bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
BUS_DMASYNC_PREWRITE);
}
}
#ifdef notyet
static void
iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx)
{
uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
*w = (*w & htole16(0xf000)) | htole16(1);
bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
BUS_DMASYNC_PREWRITE);
if (idx < IWN_SCHED_WINSZ) {
*(w + IWN_TX_RING_COUNT) = *w;
bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
BUS_DMASYNC_PREWRITE);
}
}
#endif
/*
* Check whether OFDM 11g protection will be enabled for the given rate.
*
* The original driver code only enabled protection for OFDM rates.
* It didn't check to see whether it was operating in 11a or 11bg mode.
*/
static int
iwn_check_rate_needs_protection(struct iwn_softc *sc,
struct ieee80211vap *vap, uint8_t rate)
{
struct ieee80211com *ic = vap->iv_ic;
/*
* Not in 2GHz mode? Then there's no need to enable OFDM
* 11bg protection.
*/
if (! IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
return (0);
}
/*
* 11bg protection not enabled? Then don't use it.
*/
if ((ic->ic_flags & IEEE80211_F_USEPROT) == 0)
return (0);
/*
* If it's an 11n rate - no protection.
* We'll do it via a specific 11n check.
*/
if (rate & IEEE80211_RATE_MCS) {
return (0);
}
/*
* Do a rate table lookup. If the PHY is CCK,
* don't do protection.
*/
if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_CCK)
return (0);
/*
* Yup, enable protection.
*/
return (1);
}
/*
* return a value between 0 and IWN_MAX_TX_RETRIES-1 as an index into
* the link quality table that reflects this particular entry.
*/
static int
iwn_tx_rate_to_linkq_offset(struct iwn_softc *sc, struct ieee80211_node *ni,
uint8_t rate)
{
struct ieee80211_rateset *rs;
int is_11n;
int nr;
int i;
uint8_t cmp_rate;
/*
* Figure out if we're using 11n or not here.
*/
if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && ni->ni_htrates.rs_nrates > 0)
is_11n = 1;
else
is_11n = 0;
/*
* Use the correct rate table.
*/
if (is_11n) {
rs = (struct ieee80211_rateset *) &ni->ni_htrates;
nr = ni->ni_htrates.rs_nrates;
} else {
rs = &ni->ni_rates;
nr = rs->rs_nrates;
}
/*
* Find the relevant link quality entry in the table.
*/
for (i = 0; i < nr && i < IWN_MAX_TX_RETRIES - 1 ; i++) {
/*
* The link quality table index starts at 0 == highest
* rate, so we walk the rate table backwards.
*/
cmp_rate = rs->rs_rates[(nr - 1) - i];
if (rate & IEEE80211_RATE_MCS)
cmp_rate |= IEEE80211_RATE_MCS;
#if 0
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: idx %d: nr=%d, rate=0x%02x, rateentry=0x%02x\n",
__func__,
i,
nr,
rate,
cmp_rate);
#endif
if (cmp_rate == rate)
return (i);
}
/* Failed? Start at the end */
return (IWN_MAX_TX_RETRIES - 1);
}
static int
iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
{
const struct ieee80211_txparam *tp = ni->ni_txparms;
struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211com *ic = ni->ni_ic;
struct iwn_node *wn = (void *)ni;
struct iwn_tx_ring *ring;
struct iwn_tx_cmd *cmd;
struct iwn_cmd_data *tx;
struct ieee80211_frame *wh;
struct ieee80211_key *k = NULL;
uint32_t flags;
uint16_t qos;
uint8_t tid, type;
int ac, totlen, rate;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
IWN_LOCK_ASSERT(sc);
wh = mtod(m, struct ieee80211_frame *);
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
/* Select EDCA Access Category and TX ring for this frame. */
if (IEEE80211_QOS_HAS_SEQ(wh)) {
qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
tid = qos & IEEE80211_QOS_TID;
} else {
qos = 0;
tid = 0;
}
/* Choose a TX rate index. */
if (type == IEEE80211_FC0_TYPE_MGT ||
type == IEEE80211_FC0_TYPE_CTL ||
(m->m_flags & M_EAPOL) != 0)
rate = tp->mgmtrate;
else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
rate = tp->mcastrate;
else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
rate = tp->ucastrate;
else {
/* XXX pass pktlen */
(void) ieee80211_ratectl_rate(ni, NULL, 0);
rate = ni->ni_txrate;
}
/*
* XXX TODO: Group addressed frames aren't aggregated and must
* go to the normal non-aggregation queue, and have a NONQOS TID
* assigned from net80211.
*/
ac = M_WME_GETAC(m);
if (m->m_flags & M_AMPDU_MPDU) {
struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[ac];
if (!IEEE80211_AMPDU_RUNNING(tap))
return (EINVAL);
ac = *(int *)tap->txa_private;
}
/* Encrypt the frame if need be. */
if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
/* Retrieve key for TX. */
k = ieee80211_crypto_encap(ni, m);
if (k == NULL) {
return ENOBUFS;
}
/* 802.11 header may have moved. */
wh = mtod(m, struct ieee80211_frame *);
}
totlen = m->m_pkthdr.len;
if (ieee80211_radiotap_active_vap(vap)) {
struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0;
tap->wt_rate = rate;
if (k != NULL)
tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
ieee80211_radiotap_tx(vap, m);
}
flags = 0;
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
/* Unicast frame, check if an ACK is expected. */
if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
IEEE80211_QOS_ACKPOLICY_NOACK)
flags |= IWN_TX_NEED_ACK;
}
if ((wh->i_fc[0] &
(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
(IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR))
flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */
if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */
/* Check if frame must be protected using RTS/CTS or CTS-to-self. */
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
/* NB: Group frames are sent using CCK in 802.11b/g. */
if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
flags |= IWN_TX_NEED_RTS;
} else if (iwn_check_rate_needs_protection(sc, vap, rate)) {
if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
flags |= IWN_TX_NEED_CTS;
else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
flags |= IWN_TX_NEED_RTS;
} else if ((rate & IEEE80211_RATE_MCS) &&
(ic->ic_htprotmode == IEEE80211_PROT_RTSCTS)) {
flags |= IWN_TX_NEED_RTS;
}
/* XXX HT protection? */
if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) {
if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
/* 5000 autoselects RTS/CTS or CTS-to-self. */
flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS);
flags |= IWN_TX_NEED_PROTECTION;
} else
flags |= IWN_TX_FULL_TXOP;
}
}
ring = &sc->txq[ac];
if (m->m_flags & M_AMPDU_MPDU) {
uint16_t seqno = ni->ni_txseqs[tid];
if (ring->queued > IWN_TX_RING_COUNT / 2 &&
(ring->cur + 1) % IWN_TX_RING_COUNT == ring->read) {
DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: no more space "
"(queued %d) left in %d queue!\n",
__func__, ring->queued, ac);
return (ENOBUFS);
}
/*
* Queue this frame to the hardware ring that we've
* negotiated AMPDU TX on.
*
* Note that the sequence number must match the TX slot
* being used!
*/
if ((seqno % 256) != ring->cur) {
device_printf(sc->sc_dev,
"%s: m=%p: seqno (%d) (%d) != ring index (%d) !\n",
__func__,
m,
seqno,
seqno % 256,
ring->cur);
/* XXX until D9195 will not be committed */
ni->ni_txseqs[tid] &= ~0xff;
ni->ni_txseqs[tid] += ring->cur;
seqno = ni->ni_txseqs[tid];
}
*(uint16_t *)wh->i_seq =
htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
ni->ni_txseqs[tid]++;
}
/* Prepare TX firmware command. */
cmd = &ring->cmd[ring->cur];
tx = (struct iwn_cmd_data *)cmd->data;
/* NB: No need to clear tx, all fields are reinitialized here. */
tx->scratch = 0; /* clear "scratch" area */
if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
type != IEEE80211_FC0_TYPE_DATA)
tx->id = sc->broadcast_id;
else
tx->id = wn->id;
if (type == IEEE80211_FC0_TYPE_MGT) {
uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
/* Tell HW to set timestamp in probe responses. */
if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
flags |= IWN_TX_INSERT_TSTAMP;
if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
tx->timeout = htole16(3);
else
tx->timeout = htole16(2);
} else
tx->timeout = htole16(0);
if (tx->id == sc->broadcast_id) {
/* Group or management frame. */
tx->linkq = 0;
} else {
tx->linkq = iwn_tx_rate_to_linkq_offset(sc, ni, rate);
flags |= IWN_TX_LINKQ; /* enable MRR */
}
tx->tid = tid;
tx->rts_ntries = 60;
tx->data_ntries = 15;
tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
tx->rate = iwn_rate_to_plcp(sc, ni, rate);
tx->security = 0;
tx->flags = htole32(flags);
return (iwn_tx_cmd(sc, m, ni, ring));
}
static int
iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m,
struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
{
struct ieee80211vap *vap = ni->ni_vap;
struct iwn_tx_cmd *cmd;
struct iwn_cmd_data *tx;
struct ieee80211_frame *wh;
struct iwn_tx_ring *ring;
uint32_t flags;
int ac, rate;
uint8_t type;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
IWN_LOCK_ASSERT(sc);
wh = mtod(m, struct ieee80211_frame *);
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
ac = params->ibp_pri & 3;
/* Choose a TX rate. */
rate = params->ibp_rate0;
flags = 0;
if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
flags |= IWN_TX_NEED_ACK;
if (params->ibp_flags & IEEE80211_BPF_RTS) {
if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
/* 5000 autoselects RTS/CTS or CTS-to-self. */
flags &= ~IWN_TX_NEED_RTS;
flags |= IWN_TX_NEED_PROTECTION;
} else
flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP;
}
if (params->ibp_flags & IEEE80211_BPF_CTS) {
if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
/* 5000 autoselects RTS/CTS or CTS-to-self. */
flags &= ~IWN_TX_NEED_CTS;
flags |= IWN_TX_NEED_PROTECTION;
} else
flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP;
}
if (ieee80211_radiotap_active_vap(vap)) {
struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0;
tap->wt_rate = rate;
ieee80211_radiotap_tx(vap, m);
}
ring = &sc->txq[ac];
cmd = &ring->cmd[ring->cur];
tx = (struct iwn_cmd_data *)cmd->data;
/* NB: No need to clear tx, all fields are reinitialized here. */
tx->scratch = 0; /* clear "scratch" area */
if (type == IEEE80211_FC0_TYPE_MGT) {
uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
/* Tell HW to set timestamp in probe responses. */
if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
flags |= IWN_TX_INSERT_TSTAMP;
if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
tx->timeout = htole16(3);
else
tx->timeout = htole16(2);
} else
tx->timeout = htole16(0);
tx->tid = 0;
tx->id = sc->broadcast_id;
tx->rts_ntries = params->ibp_try1;
tx->data_ntries = params->ibp_try0;
tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
tx->rate = iwn_rate_to_plcp(sc, ni, rate);
tx->security = 0;
tx->flags = htole32(flags);
/* Group or management frame. */
tx->linkq = 0;
return (iwn_tx_cmd(sc, m, ni, ring));
}
static int
iwn_tx_cmd(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni,
struct iwn_tx_ring *ring)
{
struct iwn_ops *ops = &sc->ops;
struct iwn_tx_cmd *cmd;
struct iwn_cmd_data *tx;
struct ieee80211_frame *wh;
struct iwn_tx_desc *desc;
struct iwn_tx_data *data;
bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER];
struct mbuf *m1;
u_int hdrlen;
int totlen, error, pad, nsegs = 0, i;
wh = mtod(m, struct ieee80211_frame *);
hdrlen = ieee80211_anyhdrsize(wh);
totlen = m->m_pkthdr.len;
desc = &ring->desc[ring->cur];
data = &ring->data[ring->cur];
if (__predict_false(data->m != NULL || data->ni != NULL)) {
device_printf(sc->sc_dev, "%s: ni (%p) or m (%p) for idx %d "
"in queue %d is not NULL!\n", __func__, data->ni, data->m,
ring->cur, ring->qid);
return EIO;
}
/* Prepare TX firmware command. */
cmd = &ring->cmd[ring->cur];
cmd->code = IWN_CMD_TX_DATA;
cmd->flags = 0;
cmd->qid = ring->qid;
cmd->idx = ring->cur;
tx = (struct iwn_cmd_data *)cmd->data;
tx->len = htole16(totlen);
/* Set physical address of "scratch area". */
tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr));
tx->hiaddr = IWN_HIADDR(data->scratch_paddr);
if (hdrlen & 3) {
/* First segment length must be a multiple of 4. */
tx->flags |= htole32(IWN_TX_NEED_PADDING);
pad = 4 - (hdrlen & 3);
} else
pad = 0;
/* Copy 802.11 header in TX command. */
memcpy((uint8_t *)(tx + 1), wh, hdrlen);
/* Trim 802.11 header. */
m_adj(m, hdrlen);
error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs,
&nsegs, BUS_DMA_NOWAIT);
if (error != 0) {
if (error != EFBIG) {
device_printf(sc->sc_dev,
"%s: can't map mbuf (error %d)\n", __func__, error);
return error;
}
/* Too many DMA segments, linearize mbuf. */
m1 = m_collapse(m, M_NOWAIT, IWN_MAX_SCATTER - 1);
if (m1 == NULL) {
device_printf(sc->sc_dev,
"%s: could not defrag mbuf\n", __func__);
return ENOBUFS;
}
m = m1;
error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m,
segs, &nsegs, BUS_DMA_NOWAIT);
if (error != 0) {
/* XXX fix this */
/*
* NB: Do not return error;
* original mbuf does not exist anymore.
*/
device_printf(sc->sc_dev,
"%s: can't map mbuf (error %d)\n",
__func__, error);
if_inc_counter(ni->ni_vap->iv_ifp,
IFCOUNTER_OERRORS, 1);
ieee80211_free_node(ni);
m_freem(m);
return 0;
}
}
data->m = m;
data->ni = ni;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d "
"plcp %d\n",
__func__, ring->qid, ring->cur, totlen, nsegs, tx->rate);
/* Fill TX descriptor. */
desc->nsegs = 1;
if (m->m_len != 0)
desc->nsegs += nsegs;
/* First DMA segment is used by the TX command. */
desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr));
desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) |
(4 + sizeof (*tx) + hdrlen + pad) << 4);
/* Other DMA segments are for data payload. */
seg = &segs[0];
for (i = 1; i <= nsegs; i++) {
desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr));
desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) |
seg->ds_len << 4);
seg++;
}
bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map,
BUS_DMASYNC_PREWRITE);
bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
BUS_DMASYNC_PREWRITE);
/* Update TX scheduler. */
if (ring->qid >= sc->firstaggqueue)
ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen);
/* Kick TX ring. */
ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
/* Mark TX ring as full if we reach a certain threshold. */
if (++ring->queued > IWN_TX_RING_HIMARK)
sc->qfullmsk |= 1 << ring->qid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return 0;
}
static void
iwn_xmit_task(void *arg0, int pending)
{
struct iwn_softc *sc = arg0;
struct ieee80211_node *ni;
struct mbuf *m;
int error;
struct ieee80211_bpf_params p;
int have_p;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: called\n", __func__);
IWN_LOCK(sc);
/*
* Dequeue frames, attempt to transmit,
* then disable beaconwait when we're done.
*/
while ((m = mbufq_dequeue(&sc->sc_xmit_queue)) != NULL) {
have_p = 0;
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
/* Get xmit params if appropriate */
if (ieee80211_get_xmit_params(m, &p) == 0)
have_p = 1;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: m=%p, have_p=%d\n",
__func__, m, have_p);
/* If we have xmit params, use them */
if (have_p)
error = iwn_tx_data_raw(sc, m, ni, &p);
else
error = iwn_tx_data(sc, m, ni);
if (error != 0) {
if_inc_counter(ni->ni_vap->iv_ifp,
IFCOUNTER_OERRORS, 1);
ieee80211_free_node(ni);
m_freem(m);
}
}
sc->sc_beacon_wait = 0;
IWN_UNLOCK(sc);
}
/*
* raw frame xmit - free node/reference if failed.
*/
static int
iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
const struct ieee80211_bpf_params *params)
{
struct ieee80211com *ic = ni->ni_ic;
struct iwn_softc *sc = ic->ic_softc;
int error = 0;
DPRINTF(sc, IWN_DEBUG_XMIT | IWN_DEBUG_TRACE, "->%s begin\n", __func__);
IWN_LOCK(sc);
if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0) {
m_freem(m);
IWN_UNLOCK(sc);
return (ENETDOWN);
}
/* queue frame if we have to */
if (sc->sc_beacon_wait) {
if (iwn_xmit_queue_enqueue(sc, m) != 0) {
m_freem(m);
IWN_UNLOCK(sc);
return (ENOBUFS);
}
/* Queued, so just return OK */
IWN_UNLOCK(sc);
return (0);
}
if (params == NULL) {
/*
* Legacy path; interpret frame contents to decide
* precisely how to send the frame.
*/
error = iwn_tx_data(sc, m, ni);
} else {
/*
* Caller supplied explicit parameters to use in
* sending the frame.
*/
error = iwn_tx_data_raw(sc, m, ni, params);
}
if (error == 0)
sc->sc_tx_timer = 5;
else
m_freem(m);
IWN_UNLOCK(sc);
DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, "->%s: end\n",__func__);
return (error);
}
/*
* transmit - don't free mbuf if failed; don't free node ref if failed.
*/
static int
iwn_transmit(struct ieee80211com *ic, struct mbuf *m)
{
struct iwn_softc *sc = ic->ic_softc;
struct ieee80211_node *ni;
int error;
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
IWN_LOCK(sc);
if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0 || sc->sc_beacon_wait) {
IWN_UNLOCK(sc);
return (ENXIO);
}
if (sc->qfullmsk) {
IWN_UNLOCK(sc);
return (ENOBUFS);
}
error = iwn_tx_data(sc, m, ni);
if (!error)
sc->sc_tx_timer = 5;
IWN_UNLOCK(sc);
return (error);
}
static void
iwn_scan_timeout(void *arg)
{
struct iwn_softc *sc = arg;
struct ieee80211com *ic = &sc->sc_ic;
ic_printf(ic, "scan timeout\n");
ieee80211_restart_all(ic);
}
static void
iwn_watchdog(void *arg)
{
struct iwn_softc *sc = arg;
struct ieee80211com *ic = &sc->sc_ic;
IWN_LOCK_ASSERT(sc);
KASSERT(sc->sc_flags & IWN_FLAG_RUNNING, ("not running"));
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (sc->sc_tx_timer > 0) {
if (--sc->sc_tx_timer == 0) {
ic_printf(ic, "device timeout\n");
ieee80211_restart_all(ic);
return;
}
}
callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc);
}
static int
iwn_cdev_open(struct cdev *dev, int flags, int type, struct thread *td)
{
return (0);
}
static int
iwn_cdev_close(struct cdev *dev, int flags, int type, struct thread *td)
{
return (0);
}
static int
iwn_cdev_ioctl(struct cdev *dev, unsigned long cmd, caddr_t data, int fflag,
struct thread *td)
{
int rc;
struct iwn_softc *sc = dev->si_drv1;
struct iwn_ioctl_data *d;
rc = priv_check(td, PRIV_DRIVER);
if (rc != 0)
return (0);
switch (cmd) {
case SIOCGIWNSTATS:
d = (struct iwn_ioctl_data *) data;
IWN_LOCK(sc);
/* XXX validate permissions/memory/etc? */
rc = copyout(&sc->last_stat, d->dst_addr, sizeof(struct iwn_stats));
IWN_UNLOCK(sc);
break;
case SIOCZIWNSTATS:
IWN_LOCK(sc);
memset(&sc->last_stat, 0, sizeof(struct iwn_stats));
IWN_UNLOCK(sc);
break;
default:
rc = EINVAL;
break;
}
return (rc);
}
static int
iwn_ioctl(struct ieee80211com *ic, u_long cmd, void *data)
{
return (ENOTTY);
}
static void
iwn_parent(struct ieee80211com *ic)
{
struct iwn_softc *sc = ic->ic_softc;
struct ieee80211vap *vap;
int error;
if (ic->ic_nrunning > 0) {
error = iwn_init(sc);
switch (error) {
case 0:
ieee80211_start_all(ic);
break;
case 1:
/* radio is disabled via RFkill switch */
taskqueue_enqueue(sc->sc_tq, &sc->sc_rftoggle_task);
break;
default:
vap = TAILQ_FIRST(&ic->ic_vaps);
if (vap != NULL)
ieee80211_stop(vap);
break;
}
} else
iwn_stop(sc);
}
/*
* Send a command to the firmware.
*/
static int
iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async)
{
struct iwn_tx_ring *ring;
struct iwn_tx_desc *desc;
struct iwn_tx_data *data;
struct iwn_tx_cmd *cmd;
struct mbuf *m;
bus_addr_t paddr;
int totlen, error;
int cmd_queue_num;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
if (async == 0)
IWN_LOCK_ASSERT(sc);
if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT)
cmd_queue_num = IWN_PAN_CMD_QUEUE;
else
cmd_queue_num = IWN_CMD_QUEUE_NUM;
ring = &sc->txq[cmd_queue_num];
desc = &ring->desc[ring->cur];
data = &ring->data[ring->cur];
totlen = 4 + size;
if (size > sizeof cmd->data) {
/* Command is too large to fit in a descriptor. */
if (totlen > MCLBYTES)
return EINVAL;
m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
if (m == NULL)
return ENOMEM;
cmd = mtod(m, struct iwn_tx_cmd *);
error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
if (error != 0) {
m_freem(m);
return error;
}
data->m = m;
} else {
cmd = &ring->cmd[ring->cur];
paddr = data->cmd_paddr;
}
cmd->code = code;
cmd->flags = 0;
cmd->qid = ring->qid;
cmd->idx = ring->cur;
memcpy(cmd->data, buf, size);
desc->nsegs = 1;
desc->segs[0].addr = htole32(IWN_LOADDR(paddr));
desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4);
DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n",
__func__, iwn_intr_str(cmd->code), cmd->code,
cmd->flags, cmd->qid, cmd->idx);
if (size > sizeof cmd->data) {
bus_dmamap_sync(ring->data_dmat, data->map,
BUS_DMASYNC_PREWRITE);
} else {
bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map,
BUS_DMASYNC_PREWRITE);
}
bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
BUS_DMASYNC_PREWRITE);
/* Kick command ring. */
ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return async ? 0 : msleep(desc, &sc->sc_mtx, PCATCH, "iwncmd", hz);
}
static int
iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
{
struct iwn4965_node_info hnode;
caddr_t src, dst;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/*
* We use the node structure for 5000 Series internally (it is
* a superset of the one for 4965AGN). We thus copy the common
* fields before sending the command.
*/
src = (caddr_t)node;
dst = (caddr_t)&hnode;
memcpy(dst, src, 48);
/* Skip TSC, RX MIC and TX MIC fields from ``src''. */
memcpy(dst + 48, src + 72, 20);
return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async);
}
static int
iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
{
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Direct mapping. */
return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async);
}
static int
iwn_set_link_quality(struct iwn_softc *sc, struct ieee80211_node *ni)
{
struct iwn_node *wn = (void *)ni;
struct ieee80211_rateset *rs;
struct iwn_cmd_link_quality linkq;
int i, rate, txrate;
int is_11n;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
memset(&linkq, 0, sizeof linkq);
linkq.id = wn->id;
linkq.antmsk_1stream = iwn_get_1stream_tx_antmask(sc);
linkq.antmsk_2stream = iwn_get_2stream_tx_antmask(sc);
linkq.ampdu_max = 32; /* XXX negotiated? */
linkq.ampdu_threshold = 3;
linkq.ampdu_limit = htole16(4000); /* 4ms */
DPRINTF(sc, IWN_DEBUG_XMIT,
"%s: 1stream antenna=0x%02x, 2stream antenna=0x%02x, ntxstreams=%d\n",
__func__,
linkq.antmsk_1stream,
linkq.antmsk_2stream,
sc->ntxchains);
/*
* Are we using 11n rates? Ensure the channel is
* 11n _and_ we have some 11n rates, or don't
* try.
*/
if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && ni->ni_htrates.rs_nrates > 0) {
rs = (struct ieee80211_rateset *) &ni->ni_htrates;
is_11n = 1;
} else {
rs = &ni->ni_rates;
is_11n = 0;
}
/* Start at highest available bit-rate. */
/*
* XXX this is all very dirty!
*/
if (is_11n)
txrate = ni->ni_htrates.rs_nrates - 1;
else
txrate = rs->rs_nrates - 1;
for (i = 0; i < IWN_MAX_TX_RETRIES; i++) {
uint32_t plcp;
/*
* XXX TODO: ensure the last two slots are the two lowest
* rate entries, just for now.
*/
if (i == 14 || i == 15)
txrate = 0;
if (is_11n)
rate = IEEE80211_RATE_MCS | rs->rs_rates[txrate];
else
rate = IEEE80211_RV(rs->rs_rates[txrate]);
/* Do rate -> PLCP config mapping */
plcp = iwn_rate_to_plcp(sc, ni, rate);
linkq.retry[i] = plcp;
DPRINTF(sc, IWN_DEBUG_XMIT,
"%s: i=%d, txrate=%d, rate=0x%02x, plcp=0x%08x\n",
__func__,
i,
txrate,
rate,
le32toh(plcp));
/*
* The mimo field is an index into the table which
* indicates the first index where it and subsequent entries
* will not be using MIMO.
*
* Since we're filling linkq from 0..15 and we're filling
* from the highest MCS rates to the lowest rates, if we
* _are_ doing a dual-stream rate, set mimo to idx+1 (ie,
* the next entry.) That way if the next entry is a non-MIMO
* entry, we're already pointing at it.
*/
if ((le32toh(plcp) & IWN_RFLAG_MCS) &&
IEEE80211_RV(le32toh(plcp)) > 7)
linkq.mimo = i + 1;
/* Next retry at immediate lower bit-rate. */
if (txrate > 0)
txrate--;
}
/*
* If we reached the end of the list and indeed we hit
* all MIMO rates (eg 5300 doing MCS23-15) then yes,
* set mimo to 15. Setting it to 16 panics the firmware.
*/
if (linkq.mimo > 15)
linkq.mimo = 15;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: mimo = %d\n", __func__, linkq.mimo);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, 1);
}
/*
* Broadcast node is used to send group-addressed and management frames.
*/
static int
iwn_add_broadcast_node(struct iwn_softc *sc, int async)
{
struct iwn_ops *ops = &sc->ops;
struct ieee80211com *ic = &sc->sc_ic;
struct iwn_node_info node;
struct iwn_cmd_link_quality linkq;
uint8_t txant;
int i, error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
memset(&node, 0, sizeof node);
IEEE80211_ADDR_COPY(node.macaddr, ieee80211broadcastaddr);
node.id = sc->broadcast_id;
DPRINTF(sc, IWN_DEBUG_RESET, "%s: adding broadcast node\n", __func__);
if ((error = ops->add_node(sc, &node, async)) != 0)
return error;
/* Use the first valid TX antenna. */
txant = IWN_LSB(sc->txchainmask);
memset(&linkq, 0, sizeof linkq);
linkq.id = sc->broadcast_id;
linkq.antmsk_1stream = iwn_get_1stream_tx_antmask(sc);
linkq.antmsk_2stream = iwn_get_2stream_tx_antmask(sc);
linkq.ampdu_max = 64;
linkq.ampdu_threshold = 3;
linkq.ampdu_limit = htole16(4000); /* 4ms */
/* Use lowest mandatory bit-rate. */
/* XXX rate table lookup? */
if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
linkq.retry[0] = htole32(0xd);
else
linkq.retry[0] = htole32(10 | IWN_RFLAG_CCK);
linkq.retry[0] |= htole32(IWN_RFLAG_ANT(txant));
/* Use same bit-rate for all TX retries. */
for (i = 1; i < IWN_MAX_TX_RETRIES; i++) {
linkq.retry[i] = linkq.retry[0];
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async);
}
static int
iwn_updateedca(struct ieee80211com *ic)
{
#define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */
struct iwn_softc *sc = ic->ic_softc;
struct iwn_edca_params cmd;
struct chanAccParams chp;
int aci;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
ieee80211_wme_ic_getparams(ic, &chp);
memset(&cmd, 0, sizeof cmd);
cmd.flags = htole32(IWN_EDCA_UPDATE);
IEEE80211_LOCK(ic);
for (aci = 0; aci < WME_NUM_AC; aci++) {
const struct wmeParams *ac = &chp.cap_wmeParams[aci];
cmd.ac[aci].aifsn = ac->wmep_aifsn;
cmd.ac[aci].cwmin = htole16(IWN_EXP2(ac->wmep_logcwmin));
cmd.ac[aci].cwmax = htole16(IWN_EXP2(ac->wmep_logcwmax));
cmd.ac[aci].txoplimit =
htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit));
}
IEEE80211_UNLOCK(ic);
IWN_LOCK(sc);
(void)iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1);
IWN_UNLOCK(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return 0;
#undef IWN_EXP2
}
static void
iwn_set_promisc(struct iwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
uint32_t promisc_filter;
promisc_filter = IWN_FILTER_CTL | IWN_FILTER_PROMISC;
if (ic->ic_promisc > 0 || ic->ic_opmode == IEEE80211_M_MONITOR)
sc->rxon->filter |= htole32(promisc_filter);
else
sc->rxon->filter &= ~htole32(promisc_filter);
}
static void
iwn_update_promisc(struct ieee80211com *ic)
{
struct iwn_softc *sc = ic->ic_softc;
int error;
if (ic->ic_opmode == IEEE80211_M_MONITOR)
return; /* nothing to do */
IWN_LOCK(sc);
if (!(sc->sc_flags & IWN_FLAG_RUNNING)) {
IWN_UNLOCK(sc);
return;
}
iwn_set_promisc(sc);
if ((error = iwn_send_rxon(sc, 1, 1)) != 0) {
device_printf(sc->sc_dev,
"%s: could not send RXON, error %d\n",
__func__, error);
}
IWN_UNLOCK(sc);
}
static void
iwn_update_mcast(struct ieee80211com *ic)
{
/* Ignore */
}
static void
iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on)
{
struct iwn_cmd_led led;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
#if 0
/* XXX don't set LEDs during scan? */
if (sc->sc_is_scanning)
return;
#endif
/* Clear microcode LED ownership. */
IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL);
led.which = which;
led.unit = htole32(10000); /* on/off in unit of 100ms */
led.off = off;
led.on = on;
(void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1);
}
/*
* Set the critical temperature at which the firmware will stop the radio
* and notify us.
*/
static int
iwn_set_critical_temp(struct iwn_softc *sc)
{
struct iwn_critical_temp crit;
int32_t temp;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF);
if (sc->hw_type == IWN_HW_REV_TYPE_5150)
temp = (IWN_CTOK(110) - sc->temp_off) * -5;
else if (sc->hw_type == IWN_HW_REV_TYPE_4965)
temp = IWN_CTOK(110);
else
temp = 110;
memset(&crit, 0, sizeof crit);
crit.tempR = htole32(temp);
DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %d\n", temp);
return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0);
}
static int
iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni)
{
struct iwn_cmd_timing cmd;
uint64_t val, mod;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
memset(&cmd, 0, sizeof cmd);
memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
cmd.bintval = htole16(ni->ni_intval);
cmd.lintval = htole16(10);
/* Compute remaining time until next beacon. */
val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU;
mod = le64toh(cmd.tstamp) % val;
cmd.binitval = htole32((uint32_t)(val - mod));
DPRINTF(sc, IWN_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1);
}
static void
iwn4965_power_calibration(struct iwn_softc *sc, int temp)
{
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Adjust TX power if need be (delta >= 3 degC). */
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n",
__func__, sc->temp, temp);
if (abs(temp - sc->temp) >= 3) {
/* Record temperature of last calibration. */
sc->temp = temp;
(void)iwn4965_set_txpower(sc, 1);
}
}
/*
* Set TX power for current channel (each rate has its own power settings).
* This function takes into account the regulatory information from EEPROM,
* the current temperature and the current voltage.
*/
static int
iwn4965_set_txpower(struct iwn_softc *sc, int async)
{
/* Fixed-point arithmetic division using a n-bit fractional part. */
#define fdivround(a, b, n) \
((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
/* Linear interpolation. */
#define interpolate(x, x1, y1, x2, y2, n) \
((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 };
struct iwn_ucode_info *uc = &sc->ucode_info;
struct iwn4965_cmd_txpower cmd;
struct iwn4965_eeprom_chan_samples *chans;
const uint8_t *rf_gain, *dsp_gain;
int32_t vdiff, tdiff;
int i, is_chan_5ghz, c, grp, maxpwr;
uint8_t chan;
sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
/* Retrieve current channel from last RXON. */
chan = sc->rxon->chan;
is_chan_5ghz = (sc->rxon->flags & htole32(IWN_RXON_24GHZ)) == 0;
DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n",
chan);
memset(&cmd, 0, sizeof cmd);
cmd.band = is_chan_5ghz ? 0 : 1;
cmd.chan = chan;
if (is_chan_5ghz) {
maxpwr = sc->maxpwr5GHz;
rf_gain = iwn4965_rf_gain_5ghz;
dsp_gain = iwn4965_dsp_gain_5ghz;
} else {
maxpwr = sc->maxpwr2GHz;
rf_gain = iwn4965_rf_gain_2ghz;
dsp_gain = iwn4965_dsp_gain_2ghz;
}
/* Compute voltage compensation. */
vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7;
if (vdiff > 0)
vdiff *= 2;
if (abs(vdiff) > 2)
vdiff = 0;
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
"%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n",
__func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage);
/* Get channel attenuation group. */
if (chan <= 20) /* 1-20 */
grp = 4;
else if (chan <= 43) /* 34-43 */
grp = 0;
else if (chan <= 70) /* 44-70 */
grp = 1;
else if (chan <= 124) /* 71-124 */
grp = 2;
else /* 125-200 */
grp = 3;
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
"%s: chan %d, attenuation group=%d\n", __func__, chan, grp);
/* Get channel sub-band. */
for (i = 0; i < IWN_NBANDS; i++)
if (sc->bands[i].lo != 0 &&
sc->bands[i].lo <= chan && chan <= sc->bands[i].hi)
break;
if (i == IWN_NBANDS) /* Can't happen in real-life. */
return EINVAL;
chans = sc->bands[i].chans;
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
"%s: chan %d sub-band=%d\n", __func__, chan, i);
for (c = 0; c < 2; c++) {
uint8_t power, gain, temp;
int maxchpwr, pwr, ridx, idx;
power = interpolate(chan,
chans[0].num, chans[0].samples[c][1].power,
chans[1].num, chans[1].samples[c][1].power, 1);
gain = interpolate(chan,
chans[0].num, chans[0].samples[c][1].gain,
chans[1].num, chans[1].samples[c][1].gain, 1);
temp = interpolate(chan,
chans[0].num, chans[0].samples[c][1].temp,
chans[1].num, chans[1].samples[c][1].temp, 1);
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
"%s: Tx chain %d: power=%d gain=%d temp=%d\n",
__func__, c, power, gain, temp);
/* Compute temperature compensation. */
tdiff = ((sc->temp - temp) * 2) / tdiv[grp];
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
"%s: temperature compensation=%d (current=%d, EEPROM=%d)\n",
__func__, tdiff, sc->temp, temp);
for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) {
/* Convert dBm to half-dBm. */
maxchpwr = sc->maxpwr[chan] * 2;
if ((ridx / 8) & 1)
maxchpwr -= 6; /* MIMO 2T: -3dB */
pwr = maxpwr;
/* Adjust TX power based on rate. */
if ((ridx % 8) == 5)
pwr -= 15; /* OFDM48: -7.5dB */
else if ((ridx % 8) == 6)
pwr -= 17; /* OFDM54: -8.5dB */
else if ((ridx % 8) == 7)
pwr -= 20; /* OFDM60: -10dB */
else
pwr -= 10; /* Others: -5dB */
/* Do not exceed channel max TX power. */
if (pwr > maxchpwr)
pwr = maxchpwr;
idx = gain - (pwr - power) - tdiff - vdiff;
if ((ridx / 8) & 1) /* MIMO */
idx += (int32_t)le32toh(uc->atten[grp][c]);
if (cmd.band == 0)
idx += 9; /* 5GHz */
if (ridx == IWN_RIDX_MAX)
idx += 5; /* CCK */
/* Make sure idx stays in a valid range. */
if (idx < 0)
idx = 0;
else if (idx > IWN4965_MAX_PWR_INDEX)
idx = IWN4965_MAX_PWR_INDEX;
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
"%s: Tx chain %d, rate idx %d: power=%d\n",
__func__, c, ridx, idx);
cmd.power[ridx].rf_gain[c] = rf_gain[idx];
cmd.power[ridx].dsp_gain[c] = dsp_gain[idx];
}
}
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
"%s: set tx power for chan %d\n", __func__, chan);
return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async);
#undef interpolate
#undef fdivround
}
static int
iwn5000_set_txpower(struct iwn_softc *sc, int async)
{
struct iwn5000_cmd_txpower cmd;
int cmdid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/*
* TX power calibration is handled automatically by the firmware
* for 5000 Series.
*/
memset(&cmd, 0, sizeof cmd);
cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */
cmd.flags = IWN5000_TXPOWER_NO_CLOSED;
cmd.srv_limit = IWN5000_TXPOWER_AUTO;
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT,
"%s: setting TX power; rev=%d\n",
__func__,
IWN_UCODE_API(sc->ucode_rev));
if (IWN_UCODE_API(sc->ucode_rev) == 1)
cmdid = IWN_CMD_TXPOWER_DBM_V1;
else
cmdid = IWN_CMD_TXPOWER_DBM;
return iwn_cmd(sc, cmdid, &cmd, sizeof cmd, async);
}
/*
* Retrieve the maximum RSSI (in dBm) among receivers.
*/
static int
iwn4965_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
{
struct iwn4965_rx_phystat *phy = (void *)stat->phybuf;
uint8_t mask, agc;
int rssi;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC;
agc = (le16toh(phy->agc) >> 7) & 0x7f;
rssi = 0;
if (mask & IWN_ANT_A)
rssi = MAX(rssi, phy->rssi[0]);
if (mask & IWN_ANT_B)
rssi = MAX(rssi, phy->rssi[2]);
if (mask & IWN_ANT_C)
rssi = MAX(rssi, phy->rssi[4]);
DPRINTF(sc, IWN_DEBUG_RECV,
"%s: agc %d mask 0x%x rssi %d %d %d result %d\n", __func__, agc,
mask, phy->rssi[0], phy->rssi[2], phy->rssi[4],
rssi - agc - IWN_RSSI_TO_DBM);
return rssi - agc - IWN_RSSI_TO_DBM;
}
static int
iwn5000_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
{
struct iwn5000_rx_phystat *phy = (void *)stat->phybuf;
uint8_t agc;
int rssi;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
agc = (le32toh(phy->agc) >> 9) & 0x7f;
rssi = MAX(le16toh(phy->rssi[0]) & 0xff,
le16toh(phy->rssi[1]) & 0xff);
rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi);
DPRINTF(sc, IWN_DEBUG_RECV,
"%s: agc %d rssi %d %d %d result %d\n", __func__, agc,
phy->rssi[0], phy->rssi[1], phy->rssi[2],
rssi - agc - IWN_RSSI_TO_DBM);
return rssi - agc - IWN_RSSI_TO_DBM;
}
/*
* Retrieve the average noise (in dBm) among receivers.
*/
static int
iwn_get_noise(const struct iwn_rx_general_stats *stats)
{
int i, total, nbant, noise;
total = nbant = 0;
for (i = 0; i < 3; i++) {
if ((noise = le32toh(stats->noise[i]) & 0xff) == 0)
continue;
total += noise;
nbant++;
}
/* There should be at least one antenna but check anyway. */
return (nbant == 0) ? -127 : (total / nbant) - 107;
}
/*
* Compute temperature (in degC) from last received statistics.
*/
static int
iwn4965_get_temperature(struct iwn_softc *sc)
{
struct iwn_ucode_info *uc = &sc->ucode_info;
int32_t r1, r2, r3, r4, temp;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
r1 = le32toh(uc->temp[0].chan20MHz);
r2 = le32toh(uc->temp[1].chan20MHz);
r3 = le32toh(uc->temp[2].chan20MHz);
r4 = le32toh(sc->rawtemp);
if (r1 == r3) /* Prevents division by 0 (should not happen). */
return 0;
/* Sign-extend 23-bit R4 value to 32-bit. */
r4 = ((r4 & 0xffffff) ^ 0x800000) - 0x800000;
/* Compute temperature in Kelvin. */
temp = (259 * (r4 - r2)) / (r3 - r1);
temp = (temp * 97) / 100 + 8;
DPRINTF(sc, IWN_DEBUG_ANY, "temperature %dK/%dC\n", temp,
IWN_KTOC(temp));
return IWN_KTOC(temp);
}
static int
iwn5000_get_temperature(struct iwn_softc *sc)
{
int32_t temp;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/*
* Temperature is not used by the driver for 5000 Series because
* TX power calibration is handled by firmware.
*/
temp = le32toh(sc->rawtemp);
if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
temp = (temp / -5) + sc->temp_off;
temp = IWN_KTOC(temp);
}
return temp;
}
/*
* Initialize sensitivity calibration state machine.
*/
static int
iwn_init_sensitivity(struct iwn_softc *sc)
{
struct iwn_ops *ops = &sc->ops;
struct iwn_calib_state *calib = &sc->calib;
uint32_t flags;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Reset calibration state machine. */
memset(calib, 0, sizeof (*calib));
calib->state = IWN_CALIB_STATE_INIT;
calib->cck_state = IWN_CCK_STATE_HIFA;
/* Set initial correlation values. */
calib->ofdm_x1 = sc->limits->min_ofdm_x1;
calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1;
calib->ofdm_x4 = sc->limits->min_ofdm_x4;
calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4;
calib->cck_x4 = 125;
calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4;
calib->energy_cck = sc->limits->energy_cck;
/* Write initial sensitivity. */
if ((error = iwn_send_sensitivity(sc)) != 0)
return error;
/* Write initial gains. */
if ((error = ops->init_gains(sc)) != 0)
return error;
/* Request statistics at each beacon interval. */
flags = 0;
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending request for statistics\n",
__func__);
return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1);
}
/*
* Collect noise and RSSI statistics for the first 20 beacons received
* after association and use them to determine connected antennas and
* to set differential gains.
*/
static void
iwn_collect_noise(struct iwn_softc *sc,
const struct iwn_rx_general_stats *stats)
{
struct iwn_ops *ops = &sc->ops;
struct iwn_calib_state *calib = &sc->calib;
struct ieee80211com *ic = &sc->sc_ic;
uint32_t val;
int i;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Accumulate RSSI and noise for all 3 antennas. */
for (i = 0; i < 3; i++) {
calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff;
calib->noise[i] += le32toh(stats->noise[i]) & 0xff;
}
/* NB: We update differential gains only once after 20 beacons. */
if (++calib->nbeacons < 20)
return;
/* Determine highest average RSSI. */
val = MAX(calib->rssi[0], calib->rssi[1]);
val = MAX(calib->rssi[2], val);
/* Determine which antennas are connected. */
sc->chainmask = sc->rxchainmask;
for (i = 0; i < 3; i++)
if (val - calib->rssi[i] > 15 * 20)
sc->chainmask &= ~(1 << i);
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT,
"%s: RX chains mask: theoretical=0x%x, actual=0x%x\n",
__func__, sc->rxchainmask, sc->chainmask);
/* If none of the TX antennas are connected, keep at least one. */
if ((sc->chainmask & sc->txchainmask) == 0)
sc->chainmask |= IWN_LSB(sc->txchainmask);
(void)ops->set_gains(sc);
calib->state = IWN_CALIB_STATE_RUN;
#ifdef notyet
/* XXX Disable RX chains with no antennas connected. */
sc->rxon->rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask));
if (sc->sc_is_scanning)
device_printf(sc->sc_dev,
"%s: is_scanning set, before RXON\n",
__func__);
(void)iwn_cmd(sc, IWN_CMD_RXON, sc->rxon, sc->rxonsz, 1);
#endif
/* Enable power-saving mode if requested by user. */
if (ic->ic_flags & IEEE80211_F_PMGTON)
(void)iwn_set_pslevel(sc, 0, 3, 1);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
}
static int
iwn4965_init_gains(struct iwn_softc *sc)
{
struct iwn_phy_calib_gain cmd;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
memset(&cmd, 0, sizeof cmd);
cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
/* Differential gains initially set to 0 for all 3 antennas. */
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: setting initial differential gains\n", __func__);
return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
}
static int
iwn5000_init_gains(struct iwn_softc *sc)
{
struct iwn_phy_calib cmd;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
memset(&cmd, 0, sizeof cmd);
cmd.code = sc->reset_noise_gain;
cmd.ngroups = 1;
cmd.isvalid = 1;
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: setting initial differential gains\n", __func__);
return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
}
static int
iwn4965_set_gains(struct iwn_softc *sc)
{
struct iwn_calib_state *calib = &sc->calib;
struct iwn_phy_calib_gain cmd;
int i, delta, noise;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Get minimal noise among connected antennas. */
noise = INT_MAX; /* NB: There's at least one antenna. */
for (i = 0; i < 3; i++)
if (sc->chainmask & (1 << i))
noise = MIN(calib->noise[i], noise);
memset(&cmd, 0, sizeof cmd);
cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
/* Set differential gains for connected antennas. */
for (i = 0; i < 3; i++) {
if (sc->chainmask & (1 << i)) {
/* Compute attenuation (in unit of 1.5dB). */
delta = (noise - (int32_t)calib->noise[i]) / 30;
/* NB: delta <= 0 */
/* Limit to [-4.5dB,0]. */
cmd.gain[i] = MIN(abs(delta), 3);
if (delta < 0)
cmd.gain[i] |= 1 << 2; /* sign bit */
}
}
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"setting differential gains Ant A/B/C: %x/%x/%x (%x)\n",
cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask);
return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
}
static int
iwn5000_set_gains(struct iwn_softc *sc)
{
struct iwn_calib_state *calib = &sc->calib;
struct iwn_phy_calib_gain cmd;
int i, ant, div, delta;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* We collected 20 beacons and !=6050 need a 1.5 factor. */
div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30;
memset(&cmd, 0, sizeof cmd);
cmd.code = sc->noise_gain;
cmd.ngroups = 1;
cmd.isvalid = 1;
/* Get first available RX antenna as referential. */
ant = IWN_LSB(sc->rxchainmask);
/* Set differential gains for other antennas. */
for (i = ant + 1; i < 3; i++) {
if (sc->chainmask & (1 << i)) {
/* The delta is relative to antenna "ant". */
delta = ((int32_t)calib->noise[ant] -
(int32_t)calib->noise[i]) / div;
/* Limit to [-4.5dB,+4.5dB]. */
cmd.gain[i - 1] = MIN(abs(delta), 3);
if (delta < 0)
cmd.gain[i - 1] |= 1 << 2; /* sign bit */
}
}
DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT,
"setting differential gains Ant B/C: %x/%x (%x)\n",
cmd.gain[0], cmd.gain[1], sc->chainmask);
return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
}
/*
* Tune RF RX sensitivity based on the number of false alarms detected
* during the last beacon period.
*/
static void
iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats)
{
#define inc(val, inc, max) \
if ((val) < (max)) { \
if ((val) < (max) - (inc)) \
(val) += (inc); \
else \
(val) = (max); \
needs_update = 1; \
}
#define dec(val, dec, min) \
if ((val) > (min)) { \
if ((val) > (min) + (dec)) \
(val) -= (dec); \
else \
(val) = (min); \
needs_update = 1; \
}
const struct iwn_sensitivity_limits *limits = sc->limits;
struct iwn_calib_state *calib = &sc->calib;
uint32_t val, rxena, fa;
uint32_t energy[3], energy_min;
uint8_t noise[3], noise_ref;
int i, needs_update = 0;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Check that we've been enabled long enough. */
if ((rxena = le32toh(stats->general.load)) == 0){
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end not so long\n", __func__);
return;
}
/* Compute number of false alarms since last call for OFDM. */
fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm;
fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm;
fa *= 200 * IEEE80211_DUR_TU; /* 200TU */
if (fa > 50 * rxena) {
/* High false alarm count, decrease sensitivity. */
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: OFDM high false alarm count: %u\n", __func__, fa);
inc(calib->ofdm_x1, 1, limits->max_ofdm_x1);
inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1);
inc(calib->ofdm_x4, 1, limits->max_ofdm_x4);
inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4);
} else if (fa < 5 * rxena) {
/* Low false alarm count, increase sensitivity. */
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: OFDM low false alarm count: %u\n", __func__, fa);
dec(calib->ofdm_x1, 1, limits->min_ofdm_x1);
dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1);
dec(calib->ofdm_x4, 1, limits->min_ofdm_x4);
dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4);
}
/* Compute maximum noise among 3 receivers. */
for (i = 0; i < 3; i++)
noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff;
val = MAX(noise[0], noise[1]);
val = MAX(noise[2], val);
/* Insert it into our samples table. */
calib->noise_samples[calib->cur_noise_sample] = val;
calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20;
/* Compute maximum noise among last 20 samples. */
noise_ref = calib->noise_samples[0];
for (i = 1; i < 20; i++)
noise_ref = MAX(noise_ref, calib->noise_samples[i]);
/* Compute maximum energy among 3 receivers. */
for (i = 0; i < 3; i++)
energy[i] = le32toh(stats->general.energy[i]);
val = MIN(energy[0], energy[1]);
val = MIN(energy[2], val);
/* Insert it into our samples table. */
calib->energy_samples[calib->cur_energy_sample] = val;
calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10;
/* Compute minimum energy among last 10 samples. */
energy_min = calib->energy_samples[0];
for (i = 1; i < 10; i++)
energy_min = MAX(energy_min, calib->energy_samples[i]);
energy_min += 6;
/* Compute number of false alarms since last call for CCK. */
fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck;
fa += le32toh(stats->cck.fa) - calib->fa_cck;
fa *= 200 * IEEE80211_DUR_TU; /* 200TU */
if (fa > 50 * rxena) {
/* High false alarm count, decrease sensitivity. */
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: CCK high false alarm count: %u\n", __func__, fa);
calib->cck_state = IWN_CCK_STATE_HIFA;
calib->low_fa = 0;
if (calib->cck_x4 > 160) {
calib->noise_ref = noise_ref;
if (calib->energy_cck > 2)
dec(calib->energy_cck, 2, energy_min);
}
if (calib->cck_x4 < 160) {
calib->cck_x4 = 161;
needs_update = 1;
} else
inc(calib->cck_x4, 3, limits->max_cck_x4);
inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4);
} else if (fa < 5 * rxena) {
/* Low false alarm count, increase sensitivity. */
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: CCK low false alarm count: %u\n", __func__, fa);
calib->cck_state = IWN_CCK_STATE_LOFA;
calib->low_fa++;
if (calib->cck_state != IWN_CCK_STATE_INIT &&
(((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 ||
calib->low_fa > 100)) {
inc(calib->energy_cck, 2, limits->min_energy_cck);
dec(calib->cck_x4, 3, limits->min_cck_x4);
dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4);
}
} else {
/* Not worth to increase or decrease sensitivity. */
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: CCK normal false alarm count: %u\n", __func__, fa);
calib->low_fa = 0;
calib->noise_ref = noise_ref;
if (calib->cck_state == IWN_CCK_STATE_HIFA) {
/* Previous interval had many false alarms. */
dec(calib->energy_cck, 8, energy_min);
}
calib->cck_state = IWN_CCK_STATE_INIT;
}
if (needs_update)
(void)iwn_send_sensitivity(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
#undef dec
#undef inc
}
static int
iwn_send_sensitivity(struct iwn_softc *sc)
{
struct iwn_calib_state *calib = &sc->calib;
struct iwn_enhanced_sensitivity_cmd cmd;
int len;
memset(&cmd, 0, sizeof cmd);
len = sizeof (struct iwn_sensitivity_cmd);
cmd.which = IWN_SENSITIVITY_WORKTBL;
/* OFDM modulation. */
cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1);
cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1);
cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4);
cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4);
cmd.energy_ofdm = htole16(sc->limits->energy_ofdm);
cmd.energy_ofdm_th = htole16(62);
/* CCK modulation. */
cmd.corr_cck_x4 = htole16(calib->cck_x4);
cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4);
cmd.energy_cck = htole16(calib->energy_cck);
/* Barker modulation: use default values. */
cmd.corr_barker = htole16(190);
cmd.corr_barker_mrc = htole16(sc->limits->barker_mrc);
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: set sensitivity %d/%d/%d/%d/%d/%d/%d\n", __func__,
calib->ofdm_x1, calib->ofdm_mrc_x1, calib->ofdm_x4,
calib->ofdm_mrc_x4, calib->cck_x4,
calib->cck_mrc_x4, calib->energy_cck);
if (!(sc->sc_flags & IWN_FLAG_ENH_SENS))
goto send;
/* Enhanced sensitivity settings. */
len = sizeof (struct iwn_enhanced_sensitivity_cmd);
cmd.ofdm_det_slope_mrc = htole16(668);
cmd.ofdm_det_icept_mrc = htole16(4);
cmd.ofdm_det_slope = htole16(486);
cmd.ofdm_det_icept = htole16(37);
cmd.cck_det_slope_mrc = htole16(853);
cmd.cck_det_icept_mrc = htole16(4);
cmd.cck_det_slope = htole16(476);
cmd.cck_det_icept = htole16(99);
send:
return iwn_cmd(sc, IWN_CMD_SET_SENSITIVITY, &cmd, len, 1);
}
/*
* Look at the increase of PLCP errors over time; if it exceeds
* a programmed threshold then trigger an RF retune.
*/
static void
iwn_check_rx_recovery(struct iwn_softc *sc, struct iwn_stats *rs)
{
int32_t delta_ofdm, delta_ht, delta_cck;
struct iwn_calib_state *calib = &sc->calib;
int delta_ticks, cur_ticks;
int delta_msec;
int thresh;
/*
* Calculate the difference between the current and
* previous statistics.
*/
delta_cck = le32toh(rs->rx.cck.bad_plcp) - calib->bad_plcp_cck;
delta_ofdm = le32toh(rs->rx.ofdm.bad_plcp) - calib->bad_plcp_ofdm;
delta_ht = le32toh(rs->rx.ht.bad_plcp) - calib->bad_plcp_ht;
/*
* Calculate the delta in time between successive statistics
* messages. Yes, it can roll over; so we make sure that
* this doesn't happen.
*
* XXX go figure out what to do about rollover
* XXX go figure out what to do if ticks rolls over to -ve instead!
* XXX go stab signed integer overflow undefined-ness in the face.
*/
cur_ticks = ticks;
delta_ticks = cur_ticks - sc->last_calib_ticks;
/*
* If any are negative, then the firmware likely reset; so just
* bail. We'll pick this up next time.
*/
if (delta_cck < 0 || delta_ofdm < 0 || delta_ht < 0 || delta_ticks < 0)
return;
/*
* delta_ticks is in ticks; we need to convert it up to milliseconds
* so we can do some useful math with it.
*/
delta_msec = ticks_to_msecs(delta_ticks);
/*
* Calculate what our threshold is given the current delta_msec.
*/
thresh = sc->base_params->plcp_err_threshold * delta_msec;
DPRINTF(sc, IWN_DEBUG_STATE,
"%s: time delta: %d; cck=%d, ofdm=%d, ht=%d, total=%d, thresh=%d\n",
__func__,
delta_msec,
delta_cck,
delta_ofdm,
delta_ht,
(delta_msec + delta_cck + delta_ofdm + delta_ht),
thresh);
/*
* If we need a retune, then schedule a single channel scan
* to a channel that isn't the currently active one!
*
* The math from linux iwlwifi:
*
* if ((delta * 100 / msecs) > threshold)
*/
if (thresh > 0 && (delta_cck + delta_ofdm + delta_ht) * 100 > thresh) {
DPRINTF(sc, IWN_DEBUG_ANY,
"%s: PLCP error threshold raw (%d) comparison (%d) "
"over limit (%d); retune!\n",
__func__,
(delta_cck + delta_ofdm + delta_ht),
(delta_cck + delta_ofdm + delta_ht) * 100,
thresh);
}
}
/*
* Set STA mode power saving level (between 0 and 5).
* Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
*/
static int
iwn_set_pslevel(struct iwn_softc *sc, int dtim, int level, int async)
{
struct iwn_pmgt_cmd cmd;
const struct iwn_pmgt *pmgt;
uint32_t max, skip_dtim;
uint32_t reg;
int i;
DPRINTF(sc, IWN_DEBUG_PWRSAVE,
"%s: dtim=%d, level=%d, async=%d\n",
__func__,
dtim,
level,
async);
/* Select which PS parameters to use. */
if (dtim <= 2)
pmgt = &iwn_pmgt[0][level];
else if (dtim <= 10)
pmgt = &iwn_pmgt[1][level];
else
pmgt = &iwn_pmgt[2][level];
memset(&cmd, 0, sizeof cmd);
if (level != 0) /* not CAM */
cmd.flags |= htole16(IWN_PS_ALLOW_SLEEP);
if (level == 5)
cmd.flags |= htole16(IWN_PS_FAST_PD);
/* Retrieve PCIe Active State Power Management (ASPM). */
reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + PCIER_LINK_CTL, 4);
if (!(reg & PCIEM_LINK_CTL_ASPMC_L0S)) /* L0s Entry disabled. */
cmd.flags |= htole16(IWN_PS_PCI_PMGT);
cmd.rxtimeout = htole32(pmgt->rxtimeout * 1024);
cmd.txtimeout = htole32(pmgt->txtimeout * 1024);
if (dtim == 0) {
dtim = 1;
skip_dtim = 0;
} else
skip_dtim = pmgt->skip_dtim;
if (skip_dtim != 0) {
cmd.flags |= htole16(IWN_PS_SLEEP_OVER_DTIM);
max = pmgt->intval[4];
if (max == (uint32_t)-1)
max = dtim * (skip_dtim + 1);
else if (max > dtim)
max = rounddown(max, dtim);
} else
max = dtim;
for (i = 0; i < 5; i++)
cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
DPRINTF(sc, IWN_DEBUG_RESET, "setting power saving level to %d\n",
level);
return iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
}
static int
iwn_send_btcoex(struct iwn_softc *sc)
{
struct iwn_bluetooth cmd;
memset(&cmd, 0, sizeof cmd);
cmd.flags = IWN_BT_COEX_CHAN_ANN | IWN_BT_COEX_BT_PRIO;
cmd.lead_time = IWN_BT_LEAD_TIME_DEF;
cmd.max_kill = IWN_BT_MAX_KILL_DEF;
DPRINTF(sc, IWN_DEBUG_RESET, "%s: configuring bluetooth coexistence\n",
__func__);
return iwn_cmd(sc, IWN_CMD_BT_COEX, &cmd, sizeof(cmd), 0);
}
static int
iwn_send_advanced_btcoex(struct iwn_softc *sc)
{
static const uint32_t btcoex_3wire[12] = {
0xaaaaaaaa, 0xaaaaaaaa, 0xaeaaaaaa, 0xaaaaaaaa,
0xcc00ff28, 0x0000aaaa, 0xcc00aaaa, 0x0000aaaa,
0xc0004000, 0x00004000, 0xf0005000, 0xf0005000,
};
struct iwn6000_btcoex_config btconfig;
struct iwn2000_btcoex_config btconfig2k;
struct iwn_btcoex_priotable btprio;
struct iwn_btcoex_prot btprot;
int error, i;
uint8_t flags;
memset(&btconfig, 0, sizeof btconfig);
memset(&btconfig2k, 0, sizeof btconfig2k);
flags = IWN_BT_FLAG_COEX6000_MODE_3W <<
IWN_BT_FLAG_COEX6000_MODE_SHIFT; // Done as is in linux kernel 3.2
if (sc->base_params->bt_sco_disable)
flags &= ~IWN_BT_FLAG_SYNC_2_BT_DISABLE;
else
flags |= IWN_BT_FLAG_SYNC_2_BT_DISABLE;
flags |= IWN_BT_FLAG_COEX6000_CHAN_INHIBITION;
/* Default flags result is 145 as old value */
/*
* Flags value has to be review. Values must change if we
* which to disable it
*/
if (sc->base_params->bt_session_2) {
btconfig2k.flags = flags;
btconfig2k.max_kill = 5;
btconfig2k.bt3_t7_timer = 1;
btconfig2k.kill_ack = htole32(0xffff0000);
btconfig2k.kill_cts = htole32(0xffff0000);
btconfig2k.sample_time = 2;
btconfig2k.bt3_t2_timer = 0xc;
for (i = 0; i < 12; i++)
btconfig2k.lookup_table[i] = htole32(btcoex_3wire[i]);
btconfig2k.valid = htole16(0xff);
btconfig2k.prio_boost = htole32(0xf0);
DPRINTF(sc, IWN_DEBUG_RESET,
"%s: configuring advanced bluetooth coexistence"
" session 2, flags : 0x%x\n",
__func__,
flags);
error = iwn_cmd(sc, IWN_CMD_BT_COEX, &btconfig2k,
sizeof(btconfig2k), 1);
} else {
btconfig.flags = flags;
btconfig.max_kill = 5;
btconfig.bt3_t7_timer = 1;
btconfig.kill_ack = htole32(0xffff0000);
btconfig.kill_cts = htole32(0xffff0000);
btconfig.sample_time = 2;
btconfig.bt3_t2_timer = 0xc;
for (i = 0; i < 12; i++)
btconfig.lookup_table[i] = htole32(btcoex_3wire[i]);
btconfig.valid = htole16(0xff);
btconfig.prio_boost = 0xf0;
DPRINTF(sc, IWN_DEBUG_RESET,
"%s: configuring advanced bluetooth coexistence,"
" flags : 0x%x\n",
__func__,
flags);
error = iwn_cmd(sc, IWN_CMD_BT_COEX, &btconfig,
sizeof(btconfig), 1);
}
if (error != 0)
return error;
memset(&btprio, 0, sizeof btprio);
btprio.calib_init1 = 0x6;
btprio.calib_init2 = 0x7;
btprio.calib_periodic_low1 = 0x2;
btprio.calib_periodic_low2 = 0x3;
btprio.calib_periodic_high1 = 0x4;
btprio.calib_periodic_high2 = 0x5;
btprio.dtim = 0x6;
btprio.scan52 = 0x8;
btprio.scan24 = 0xa;
error = iwn_cmd(sc, IWN_CMD_BT_COEX_PRIOTABLE, &btprio, sizeof(btprio),
1);
if (error != 0)
return error;
/* Force BT state machine change. */
memset(&btprot, 0, sizeof btprot);
btprot.open = 1;
btprot.type = 1;
error = iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1);
if (error != 0)
return error;
btprot.open = 0;
return iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1);
}
static int
iwn5000_runtime_calib(struct iwn_softc *sc)
{
struct iwn5000_calib_config cmd;
memset(&cmd, 0, sizeof cmd);
cmd.ucode.once.enable = 0xffffffff;
cmd.ucode.once.start = IWN5000_CALIB_DC;
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"%s: configuring runtime calibration\n", __func__);
return iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof(cmd), 0);
}
static uint32_t
iwn_get_rxon_ht_flags(struct iwn_softc *sc, struct ieee80211_channel *c)
{
struct ieee80211com *ic = &sc->sc_ic;
uint32_t htflags = 0;
if (! IEEE80211_IS_CHAN_HT(c))
return (0);
htflags |= IWN_RXON_HT_PROTMODE(ic->ic_curhtprotmode);
if (IEEE80211_IS_CHAN_HT40(c)) {
switch (ic->ic_curhtprotmode) {
case IEEE80211_HTINFO_OPMODE_HT20PR:
htflags |= IWN_RXON_HT_MODEPURE40;
break;
default:
htflags |= IWN_RXON_HT_MODEMIXED;
break;
}
}
if (IEEE80211_IS_CHAN_HT40D(c))
htflags |= IWN_RXON_HT_HT40MINUS;
return (htflags);
}
static int
iwn_check_bss_filter(struct iwn_softc *sc)
{
return ((sc->rxon->filter & htole32(IWN_FILTER_BSS)) != 0);
}
static int
iwn4965_rxon_assoc(struct iwn_softc *sc, int async)
{
struct iwn4965_rxon_assoc cmd;
struct iwn_rxon *rxon = sc->rxon;
cmd.flags = rxon->flags;
cmd.filter = rxon->filter;
cmd.ofdm_mask = rxon->ofdm_mask;
cmd.cck_mask = rxon->cck_mask;
cmd.ht_single_mask = rxon->ht_single_mask;
cmd.ht_dual_mask = rxon->ht_dual_mask;
cmd.rxchain = rxon->rxchain;
cmd.reserved = 0;
return (iwn_cmd(sc, IWN_CMD_RXON_ASSOC, &cmd, sizeof(cmd), async));
}
static int
iwn5000_rxon_assoc(struct iwn_softc *sc, int async)
{
struct iwn5000_rxon_assoc cmd;
struct iwn_rxon *rxon = sc->rxon;
cmd.flags = rxon->flags;
cmd.filter = rxon->filter;
cmd.ofdm_mask = rxon->ofdm_mask;
cmd.cck_mask = rxon->cck_mask;
cmd.reserved1 = 0;
cmd.ht_single_mask = rxon->ht_single_mask;
cmd.ht_dual_mask = rxon->ht_dual_mask;
cmd.ht_triple_mask = rxon->ht_triple_mask;
cmd.reserved2 = 0;
cmd.rxchain = rxon->rxchain;
cmd.acquisition = rxon->acquisition;
cmd.reserved3 = 0;
return (iwn_cmd(sc, IWN_CMD_RXON_ASSOC, &cmd, sizeof(cmd), async));
}
static int
iwn_send_rxon(struct iwn_softc *sc, int assoc, int async)
{
struct iwn_ops *ops = &sc->ops;
int error;
IWN_LOCK_ASSERT(sc);
if (assoc && iwn_check_bss_filter(sc) != 0) {
error = ops->rxon_assoc(sc, async);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: RXON_ASSOC command failed, error %d\n",
__func__, error);
return (error);
}
} else {
if (sc->sc_is_scanning)
device_printf(sc->sc_dev,
"%s: is_scanning set, before RXON\n",
__func__);
error = iwn_cmd(sc, IWN_CMD_RXON, sc->rxon, sc->rxonsz, async);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: RXON command failed, error %d\n",
__func__, error);
return (error);
}
/*
* Reconfiguring RXON clears the firmware nodes table so
* we must add the broadcast node again.
*/
if (iwn_check_bss_filter(sc) == 0 &&
(error = iwn_add_broadcast_node(sc, async)) != 0) {
device_printf(sc->sc_dev,
"%s: could not add broadcast node, error %d\n",
__func__, error);
return (error);
}
}
/* Configuration has changed, set TX power accordingly. */
if ((error = ops->set_txpower(sc, async)) != 0) {
device_printf(sc->sc_dev,
"%s: could not set TX power, error %d\n",
__func__, error);
return (error);
}
return (0);
}
static int
iwn_config(struct iwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
const uint8_t *macaddr;
uint32_t txmask;
uint16_t rxchain;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
if ((sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSET)
&& (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2)) {
device_printf(sc->sc_dev,"%s: temp_offset and temp_offsetv2 are"
" exclusive each together. Review NIC config file. Conf"
" : 0x%08x Flags : 0x%08x \n", __func__,
sc->base_params->calib_need,
(IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSET |
IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2));
return (EINVAL);
}
/* Compute temperature calib if needed. Will be send by send calib */
if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSET) {
error = iwn5000_temp_offset_calib(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not set temperature offset\n", __func__);
return (error);
}
} else if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2) {
error = iwn5000_temp_offset_calibv2(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not compute temperature offset v2\n",
__func__);
return (error);
}
}
if (sc->hw_type == IWN_HW_REV_TYPE_6050) {
/* Configure runtime DC calibration. */
error = iwn5000_runtime_calib(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not configure runtime calibration\n",
__func__);
return error;
}
}
/* Configure valid TX chains for >=5000 Series. */
if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
IWN_UCODE_API(sc->ucode_rev) > 1) {
txmask = htole32(sc->txchainmask);
DPRINTF(sc, IWN_DEBUG_RESET | IWN_DEBUG_XMIT,
"%s: configuring valid TX chains 0x%x\n", __func__, txmask);
error = iwn_cmd(sc, IWN5000_CMD_TX_ANT_CONFIG, &txmask,
sizeof txmask, 0);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not configure valid TX chains, "
"error %d\n", __func__, error);
return error;
}
}
/* Configure bluetooth coexistence. */
error = 0;
/* Configure bluetooth coexistence if needed. */
if (sc->base_params->bt_mode == IWN_BT_ADVANCED)
error = iwn_send_advanced_btcoex(sc);
if (sc->base_params->bt_mode == IWN_BT_SIMPLE)
error = iwn_send_btcoex(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not configure bluetooth coexistence, error %d\n",
__func__, error);
return error;
}
/* Set mode, channel, RX filter and enable RX. */
sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
memset(sc->rxon, 0, sizeof (struct iwn_rxon));
macaddr = vap ? vap->iv_myaddr : ic->ic_macaddr;
IEEE80211_ADDR_COPY(sc->rxon->myaddr, macaddr);
IEEE80211_ADDR_COPY(sc->rxon->wlap, macaddr);
sc->rxon->chan = ieee80211_chan2ieee(ic, ic->ic_curchan);
sc->rxon->flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
sc->rxon->flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
sc->rxon->filter = htole32(IWN_FILTER_MULTICAST);
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
sc->rxon->mode = IWN_MODE_STA;
break;
case IEEE80211_M_MONITOR:
sc->rxon->mode = IWN_MODE_MONITOR;
break;
default:
/* Should not get there. */
break;
}
iwn_set_promisc(sc);
sc->rxon->cck_mask = 0x0f; /* not yet negotiated */
sc->rxon->ofdm_mask = 0xff; /* not yet negotiated */
sc->rxon->ht_single_mask = 0xff;
sc->rxon->ht_dual_mask = 0xff;
sc->rxon->ht_triple_mask = 0xff;
/*
* In active association mode, ensure that
* all the receive chains are enabled.
*
* Since we're not yet doing SMPS, don't allow the
* number of idle RX chains to be less than the active
* number.
*/
rxchain =
IWN_RXCHAIN_VALID(sc->rxchainmask) |
IWN_RXCHAIN_MIMO_COUNT(sc->nrxchains) |
IWN_RXCHAIN_IDLE_COUNT(sc->nrxchains);
sc->rxon->rxchain = htole16(rxchain);
DPRINTF(sc, IWN_DEBUG_RESET | IWN_DEBUG_XMIT,
"%s: rxchainmask=0x%x, nrxchains=%d\n",
__func__,
sc->rxchainmask,
sc->nrxchains);
sc->rxon->flags |= htole32(iwn_get_rxon_ht_flags(sc, ic->ic_curchan));
DPRINTF(sc, IWN_DEBUG_RESET,
"%s: setting configuration; flags=0x%08x\n",
__func__, le32toh(sc->rxon->flags));
if ((error = iwn_send_rxon(sc, 0, 0)) != 0) {
device_printf(sc->sc_dev, "%s: could not send RXON\n",
__func__);
return error;
}
if ((error = iwn_set_critical_temp(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not set critical temperature\n", __func__);
return error;
}
/* Set power saving level to CAM during initialization. */
if ((error = iwn_set_pslevel(sc, 0, 0, 0)) != 0) {
device_printf(sc->sc_dev,
"%s: could not set power saving level\n", __func__);
return error;
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return 0;
}
static uint16_t
iwn_get_active_dwell_time(struct iwn_softc *sc,
struct ieee80211_channel *c, uint8_t n_probes)
{
/* No channel? Default to 2GHz settings */
if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
return (IWN_ACTIVE_DWELL_TIME_2GHZ +
IWN_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1));
}
/* 5GHz dwell time */
return (IWN_ACTIVE_DWELL_TIME_5GHZ +
IWN_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1));
}
/*
* Limit the total dwell time to 85% of the beacon interval.
*
* Returns the dwell time in milliseconds.
*/
static uint16_t
iwn_limit_dwell(struct iwn_softc *sc, uint16_t dwell_time)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = NULL;
int bintval = 0;
/* bintval is in TU (1.024mS) */
if (! TAILQ_EMPTY(&ic->ic_vaps)) {
vap = TAILQ_FIRST(&ic->ic_vaps);
bintval = vap->iv_bss->ni_intval;
}
/*
* If it's non-zero, we should calculate the minimum of
* it and the DWELL_BASE.
*
* XXX Yes, the math should take into account that bintval
* is 1.024mS, not 1mS..
*/
if (bintval > 0) {
DPRINTF(sc, IWN_DEBUG_SCAN,
"%s: bintval=%d\n",
__func__,
bintval);
return (MIN(IWN_PASSIVE_DWELL_BASE, ((bintval * 85) / 100)));
}
/* No association context? Default */
return (IWN_PASSIVE_DWELL_BASE);
}
static uint16_t
iwn_get_passive_dwell_time(struct iwn_softc *sc, struct ieee80211_channel *c)
{
uint16_t passive;
if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
passive = IWN_PASSIVE_DWELL_BASE + IWN_PASSIVE_DWELL_TIME_2GHZ;
} else {
passive = IWN_PASSIVE_DWELL_BASE + IWN_PASSIVE_DWELL_TIME_5GHZ;
}
/* Clamp to the beacon interval if we're associated */
return (iwn_limit_dwell(sc, passive));
}
static int
iwn_scan(struct iwn_softc *sc, struct ieee80211vap *vap,
struct ieee80211_scan_state *ss, struct ieee80211_channel *c)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_node *ni = vap->iv_bss;
struct iwn_scan_hdr *hdr;
struct iwn_cmd_data *tx;
struct iwn_scan_essid *essid;
struct iwn_scan_chan *chan;
struct ieee80211_frame *wh;
struct ieee80211_rateset *rs;
uint8_t *buf, *frm;
uint16_t rxchain;
uint8_t txant;
int buflen, error;
int is_active;
uint16_t dwell_active, dwell_passive;
uint32_t extra, scan_service_time;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/*
* We are absolutely not allowed to send a scan command when another
* scan command is pending.
*/
if (sc->sc_is_scanning) {
device_printf(sc->sc_dev, "%s: called whilst scanning!\n",
__func__);
return (EAGAIN);
}
/* Assign the scan channel */
c = ic->ic_curchan;
sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
buf = malloc(IWN_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO);
if (buf == NULL) {
device_printf(sc->sc_dev,
"%s: could not allocate buffer for scan command\n",
__func__);
return ENOMEM;
}
hdr = (struct iwn_scan_hdr *)buf;
/*
* Move to the next channel if no frames are received within 10ms
* after sending the probe request.
*/
hdr->quiet_time = htole16(10); /* timeout in milliseconds */
hdr->quiet_threshold = htole16(1); /* min # of packets */
/*
* Max needs to be greater than active and passive and quiet!
* It's also in microseconds!
*/
hdr->max_svc = htole32(250 * 1024);
/*
* Reset scan: interval=100
* Normal scan: interval=becaon interval
* suspend_time: 100 (TU)
*
*/
extra = (100 /* suspend_time */ / 100 /* beacon interval */) << 22;
//scan_service_time = extra | ((100 /* susp */ % 100 /* int */) * 1024);
scan_service_time = (4 << 22) | (100 * 1024); /* Hardcode for now! */
hdr->pause_svc = htole32(scan_service_time);
/* Select antennas for scanning. */
rxchain =
IWN_RXCHAIN_VALID(sc->rxchainmask) |
IWN_RXCHAIN_FORCE_MIMO_SEL(sc->rxchainmask) |
IWN_RXCHAIN_DRIVER_FORCE;
if (IEEE80211_IS_CHAN_A(c) &&
sc->hw_type == IWN_HW_REV_TYPE_4965) {
/* Ant A must be avoided in 5GHz because of an HW bug. */
rxchain |= IWN_RXCHAIN_FORCE_SEL(IWN_ANT_B);
} else /* Use all available RX antennas. */
rxchain |= IWN_RXCHAIN_FORCE_SEL(sc->rxchainmask);
hdr->rxchain = htole16(rxchain);
hdr->filter = htole32(IWN_FILTER_MULTICAST | IWN_FILTER_BEACON);
tx = (struct iwn_cmd_data *)(hdr + 1);
tx->flags = htole32(IWN_TX_AUTO_SEQ);
tx->id = sc->broadcast_id;
tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
if (IEEE80211_IS_CHAN_5GHZ(c)) {
/* Send probe requests at 6Mbps. */
tx->rate = htole32(0xd);
rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
} else {
hdr->flags = htole32(IWN_RXON_24GHZ | IWN_RXON_AUTO);
if (sc->hw_type == IWN_HW_REV_TYPE_4965 &&
sc->rxon->associd && sc->rxon->chan > 14)
tx->rate = htole32(0xd);
else {
/* Send probe requests at 1Mbps. */
tx->rate = htole32(10 | IWN_RFLAG_CCK);
}
rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
}
/* Use the first valid TX antenna. */
txant = IWN_LSB(sc->txchainmask);
tx->rate |= htole32(IWN_RFLAG_ANT(txant));
/*
* Only do active scanning if we're announcing a probe request
* for a given SSID (or more, if we ever add it to the driver.)
*/
is_active = 0;
/*
* If we're scanning for a specific SSID, add it to the command.
*
* XXX maybe look at adding support for scanning multiple SSIDs?
*/
essid = (struct iwn_scan_essid *)(tx + 1);
if (ss != NULL) {
if (ss->ss_ssid[0].len != 0) {
essid[0].id = IEEE80211_ELEMID_SSID;
essid[0].len = ss->ss_ssid[0].len;
memcpy(essid[0].data, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len);
}
DPRINTF(sc, IWN_DEBUG_SCAN, "%s: ssid_len=%d, ssid=%*s\n",
__func__,
ss->ss_ssid[0].len,
ss->ss_ssid[0].len,
ss->ss_ssid[0].ssid);
if (ss->ss_nssid > 0)
is_active = 1;
}
/*
* Build a probe request frame. Most of the following code is a
* copy & paste of what is done in net80211.
*/
wh = (struct ieee80211_frame *)(essid + 20);
wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
IEEE80211_FC0_SUBTYPE_PROBE_REQ;
wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
IEEE80211_ADDR_COPY(wh->i_addr1, vap->iv_ifp->if_broadcastaddr);
IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(vap->iv_ifp));
IEEE80211_ADDR_COPY(wh->i_addr3, vap->iv_ifp->if_broadcastaddr);
*(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */
*(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */
frm = (uint8_t *)(wh + 1);
frm = ieee80211_add_ssid(frm, NULL, 0);
frm = ieee80211_add_rates(frm, rs);
if (rs->rs_nrates > IEEE80211_RATE_SIZE)
frm = ieee80211_add_xrates(frm, rs);
if (ic->ic_htcaps & IEEE80211_HTC_HT)
frm = ieee80211_add_htcap(frm, ni);
/* Set length of probe request. */
tx->len = htole16(frm - (uint8_t *)wh);
/*
* If active scanning is requested but a certain channel is
* marked passive, we can do active scanning if we detect
* transmissions.
*
* There is an issue with some firmware versions that triggers
* a sysassert on a "good CRC threshold" of zero (== disabled),
* on a radar channel even though this means that we should NOT
* send probes.
*
* The "good CRC threshold" is the number of frames that we
* need to receive during our dwell time on a channel before
* sending out probes -- setting this to a huge value will
* mean we never reach it, but at the same time work around
* the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER
* here instead of IWL_GOOD_CRC_TH_DISABLED.
*
* This was fixed in later versions along with some other
* scan changes, and the threshold behaves as a flag in those
* versions.
*/
/*
* If we're doing active scanning, set the crc_threshold
* to a suitable value. This is different to active veruss
* passive scanning depending upon the channel flags; the
* firmware will obey that particular check for us.
*/
if (sc->tlv_feature_flags & IWN_UCODE_TLV_FLAGS_NEWSCAN)
hdr->crc_threshold = is_active ?
IWN_GOOD_CRC_TH_DEFAULT : IWN_GOOD_CRC_TH_DISABLED;
else
hdr->crc_threshold = is_active ?
IWN_GOOD_CRC_TH_DEFAULT : IWN_GOOD_CRC_TH_NEVER;
chan = (struct iwn_scan_chan *)frm;
chan->chan = htole16(ieee80211_chan2ieee(ic, c));
chan->flags = 0;
if (ss->ss_nssid > 0)
chan->flags |= htole32(IWN_CHAN_NPBREQS(1));
chan->dsp_gain = 0x6e;
/*
* Set the passive/active flag depending upon the channel mode.
* XXX TODO: take the is_active flag into account as well?
*/
if (c->ic_flags & IEEE80211_CHAN_PASSIVE)
chan->flags |= htole32(IWN_CHAN_PASSIVE);
else
chan->flags |= htole32(IWN_CHAN_ACTIVE);
/*
* Calculate the active/passive dwell times.
*/
dwell_active = iwn_get_active_dwell_time(sc, c, ss->ss_nssid);
dwell_passive = iwn_get_passive_dwell_time(sc, c);
/* Make sure they're valid */
if (dwell_passive <= dwell_active)
dwell_passive = dwell_active + 1;
chan->active = htole16(dwell_active);
chan->passive = htole16(dwell_passive);
if (IEEE80211_IS_CHAN_5GHZ(c))
chan->rf_gain = 0x3b;
else
chan->rf_gain = 0x28;
DPRINTF(sc, IWN_DEBUG_STATE,
"%s: chan %u flags 0x%x rf_gain 0x%x "
"dsp_gain 0x%x active %d passive %d scan_svc_time %d crc 0x%x "
"isactive=%d numssid=%d\n", __func__,
chan->chan, chan->flags, chan->rf_gain, chan->dsp_gain,
dwell_active, dwell_passive, scan_service_time,
hdr->crc_threshold, is_active, ss->ss_nssid);
hdr->nchan++;
chan++;
buflen = (uint8_t *)chan - buf;
hdr->len = htole16(buflen);
if (sc->sc_is_scanning) {
device_printf(sc->sc_dev,
"%s: called with is_scanning set!\n",
__func__);
}
sc->sc_is_scanning = 1;
DPRINTF(sc, IWN_DEBUG_STATE, "sending scan command nchan=%d\n",
hdr->nchan);
error = iwn_cmd(sc, IWN_CMD_SCAN, buf, buflen, 1);
free(buf, M_DEVBUF);
if (error == 0)
callout_reset(&sc->scan_timeout, 5*hz, iwn_scan_timeout, sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return error;
}
static int
iwn_auth(struct iwn_softc *sc, struct ieee80211vap *vap)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_node *ni = vap->iv_bss;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
/* Update adapter configuration. */
IEEE80211_ADDR_COPY(sc->rxon->bssid, ni->ni_bssid);
sc->rxon->chan = ieee80211_chan2ieee(ic, ni->ni_chan);
sc->rxon->flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
sc->rxon->flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
if (ic->ic_flags & IEEE80211_F_SHSLOT)
sc->rxon->flags |= htole32(IWN_RXON_SHSLOT);
if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
sc->rxon->flags |= htole32(IWN_RXON_SHPREAMBLE);
if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
sc->rxon->cck_mask = 0;
sc->rxon->ofdm_mask = 0x15;
} else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
sc->rxon->cck_mask = 0x03;
sc->rxon->ofdm_mask = 0;
} else {
/* Assume 802.11b/g. */
sc->rxon->cck_mask = 0x03;
sc->rxon->ofdm_mask = 0x15;
}
/* try HT */
sc->rxon->flags |= htole32(iwn_get_rxon_ht_flags(sc, ic->ic_curchan));
DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n",
sc->rxon->chan, sc->rxon->flags, sc->rxon->cck_mask,
sc->rxon->ofdm_mask);
if ((error = iwn_send_rxon(sc, 0, 1)) != 0) {
device_printf(sc->sc_dev, "%s: could not send RXON\n",
__func__);
return (error);
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return (0);
}
static int
iwn_run(struct iwn_softc *sc, struct ieee80211vap *vap)
{
struct iwn_ops *ops = &sc->ops;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_node *ni = vap->iv_bss;
struct iwn_node_info node;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
if (ic->ic_opmode == IEEE80211_M_MONITOR) {
/* Link LED blinks while monitoring. */
iwn_set_led(sc, IWN_LED_LINK, 5, 5);
return 0;
}
if ((error = iwn_set_timing(sc, ni)) != 0) {
device_printf(sc->sc_dev,
"%s: could not set timing, error %d\n", __func__, error);
return error;
}
/* Update adapter configuration. */
IEEE80211_ADDR_COPY(sc->rxon->bssid, ni->ni_bssid);
sc->rxon->associd = htole16(IEEE80211_AID(ni->ni_associd));
sc->rxon->chan = ieee80211_chan2ieee(ic, ni->ni_chan);
sc->rxon->flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
sc->rxon->flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
if (ic->ic_flags & IEEE80211_F_SHSLOT)
sc->rxon->flags |= htole32(IWN_RXON_SHSLOT);
if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
sc->rxon->flags |= htole32(IWN_RXON_SHPREAMBLE);
if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
sc->rxon->cck_mask = 0;
sc->rxon->ofdm_mask = 0x15;
} else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
sc->rxon->cck_mask = 0x03;
sc->rxon->ofdm_mask = 0;
} else {
/* Assume 802.11b/g. */
sc->rxon->cck_mask = 0x0f;
sc->rxon->ofdm_mask = 0x15;
}
/* try HT */
sc->rxon->flags |= htole32(iwn_get_rxon_ht_flags(sc, ni->ni_chan));
sc->rxon->filter |= htole32(IWN_FILTER_BSS);
DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x, curhtprotmode=%d\n",
sc->rxon->chan, le32toh(sc->rxon->flags), ic->ic_curhtprotmode);
if ((error = iwn_send_rxon(sc, 0, 1)) != 0) {
device_printf(sc->sc_dev, "%s: could not send RXON\n",
__func__);
return error;
}
/* Fake a join to initialize the TX rate. */
((struct iwn_node *)ni)->id = IWN_ID_BSS;
iwn_newassoc(ni, 1);
/* Add BSS node. */
memset(&node, 0, sizeof node);
IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
node.id = IWN_ID_BSS;
if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) {
switch (ni->ni_htcap & IEEE80211_HTCAP_SMPS) {
case IEEE80211_HTCAP_SMPS_ENA:
node.htflags |= htole32(IWN_SMPS_MIMO_DIS);
break;
case IEEE80211_HTCAP_SMPS_DYNAMIC:
node.htflags |= htole32(IWN_SMPS_MIMO_PROT);
break;
}
node.htflags |= htole32(IWN_AMDPU_SIZE_FACTOR(3) |
IWN_AMDPU_DENSITY(5)); /* 4us */
if (IEEE80211_IS_CHAN_HT40(ni->ni_chan))
node.htflags |= htole32(IWN_NODE_HT40);
}
DPRINTF(sc, IWN_DEBUG_STATE, "%s: adding BSS node\n", __func__);
error = ops->add_node(sc, &node, 1);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not add BSS node, error %d\n", __func__, error);
return error;
}
DPRINTF(sc, IWN_DEBUG_STATE, "%s: setting link quality for node %d\n",
__func__, node.id);
if ((error = iwn_set_link_quality(sc, ni)) != 0) {
device_printf(sc->sc_dev,
"%s: could not setup link quality for node %d, error %d\n",
__func__, node.id, error);
return error;
}
if ((error = iwn_init_sensitivity(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not set sensitivity, error %d\n", __func__,
error);
return error;
}
/* Start periodic calibration timer. */
sc->calib.state = IWN_CALIB_STATE_ASSOC;
sc->calib_cnt = 0;
callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout,
sc);
/* Link LED always on while associated. */
iwn_set_led(sc, IWN_LED_LINK, 0, 1);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return 0;
}
/*
* This function is called by upper layer when an ADDBA request is received
* from another STA and before the ADDBA response is sent.
*/
static int
iwn_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap,
int baparamset, int batimeout, int baseqctl)
{
struct iwn_softc *sc = ni->ni_ic->ic_softc;
struct iwn_ops *ops = &sc->ops;
struct iwn_node *wn = (void *)ni;
struct iwn_node_info node;
uint16_t ssn;
uint8_t tid;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID);
ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START);
if (wn->id == IWN_ID_UNDEFINED)
return (ENOENT);
memset(&node, 0, sizeof node);
node.id = wn->id;
node.control = IWN_NODE_UPDATE;
node.flags = IWN_FLAG_SET_ADDBA;
node.addba_tid = tid;
node.addba_ssn = htole16(ssn);
DPRINTF(sc, IWN_DEBUG_RECV, "ADDBA RA=%d TID=%d SSN=%d\n",
wn->id, tid, ssn);
error = ops->add_node(sc, &node, 1);
if (error != 0)
return error;
return sc->sc_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl);
}
/*
* This function is called by upper layer on teardown of an HT-immediate
* Block Ack agreement (eg. uppon receipt of a DELBA frame).
*/
static void
iwn_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
{
struct ieee80211com *ic = ni->ni_ic;
struct iwn_softc *sc = ic->ic_softc;
struct iwn_ops *ops = &sc->ops;
struct iwn_node *wn = (void *)ni;
struct iwn_node_info node;
uint8_t tid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (wn->id == IWN_ID_UNDEFINED)
goto end;
/* XXX: tid as an argument */
for (tid = 0; tid < WME_NUM_TID; tid++) {
if (&ni->ni_rx_ampdu[tid] == rap)
break;
}
memset(&node, 0, sizeof node);
node.id = wn->id;
node.control = IWN_NODE_UPDATE;
node.flags = IWN_FLAG_SET_DELBA;
node.delba_tid = tid;
DPRINTF(sc, IWN_DEBUG_RECV, "DELBA RA=%d TID=%d\n", wn->id, tid);
(void)ops->add_node(sc, &node, 1);
end:
sc->sc_ampdu_rx_stop(ni, rap);
}
static int
iwn_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap,
int dialogtoken, int baparamset, int batimeout)
{
struct iwn_softc *sc = ni->ni_ic->ic_softc;
int qid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
for (qid = sc->firstaggqueue; qid < sc->ntxqs; qid++) {
if (sc->qid2tap[qid] == NULL)
break;
}
if (qid == sc->ntxqs) {
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: not free aggregation queue\n",
__func__);
return 0;
}
tap->txa_private = malloc(sizeof(int), M_DEVBUF, M_NOWAIT);
if (tap->txa_private == NULL) {
device_printf(sc->sc_dev,
"%s: failed to alloc TX aggregation structure\n", __func__);
return 0;
}
sc->qid2tap[qid] = tap;
*(int *)tap->txa_private = qid;
return sc->sc_addba_request(ni, tap, dialogtoken, baparamset,
batimeout);
}
static int
iwn_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap,
int code, int baparamset, int batimeout)
{
struct iwn_softc *sc = ni->ni_ic->ic_softc;
int qid = *(int *)tap->txa_private;
uint8_t tid = tap->txa_tid;
int ret;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (code == IEEE80211_STATUS_SUCCESS) {
ni->ni_txseqs[tid] = tap->txa_start & 0xfff;
ret = iwn_ampdu_tx_start(ni->ni_ic, ni, tid);
if (ret != 1)
return ret;
} else {
sc->qid2tap[qid] = NULL;
free(tap->txa_private, M_DEVBUF);
tap->txa_private = NULL;
}
return sc->sc_addba_response(ni, tap, code, baparamset, batimeout);
}
/*
* This function is called by upper layer when an ADDBA response is received
* from another STA.
*/
static int
iwn_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni,
uint8_t tid)
{
struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[tid];
struct iwn_softc *sc = ni->ni_ic->ic_softc;
struct iwn_ops *ops = &sc->ops;
struct iwn_node *wn = (void *)ni;
struct iwn_node_info node;
int error, qid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (wn->id == IWN_ID_UNDEFINED)
return (0);
/* Enable TX for the specified RA/TID. */
wn->disable_tid &= ~(1 << tid);
memset(&node, 0, sizeof node);
node.id = wn->id;
node.control = IWN_NODE_UPDATE;
node.flags = IWN_FLAG_SET_DISABLE_TID;
node.disable_tid = htole16(wn->disable_tid);
error = ops->add_node(sc, &node, 1);
if (error != 0)
return 0;
if ((error = iwn_nic_lock(sc)) != 0)
return 0;
qid = *(int *)tap->txa_private;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: ra=%d tid=%d ssn=%d qid=%d\n",
__func__, wn->id, tid, tap->txa_start, qid);
ops->ampdu_tx_start(sc, ni, qid, tid, tap->txa_start & 0xfff);
iwn_nic_unlock(sc);
iwn_set_link_quality(sc, ni);
return 1;
}
static void
iwn_ampdu_tx_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
{
struct iwn_softc *sc = ni->ni_ic->ic_softc;
struct iwn_ops *ops = &sc->ops;
uint8_t tid = tap->txa_tid;
int qid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
sc->sc_addba_stop(ni, tap);
if (tap->txa_private == NULL)
return;
qid = *(int *)tap->txa_private;
if (sc->txq[qid].queued != 0)
return;
if (iwn_nic_lock(sc) != 0)
return;
ops->ampdu_tx_stop(sc, qid, tid, tap->txa_start & 0xfff);
iwn_nic_unlock(sc);
sc->qid2tap[qid] = NULL;
free(tap->txa_private, M_DEVBUF);
tap->txa_private = NULL;
}
static void
iwn4965_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
int qid, uint8_t tid, uint16_t ssn)
{
struct iwn_node *wn = (void *)ni;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Stop TX scheduler while we're changing its configuration. */
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
IWN4965_TXQ_STATUS_CHGACT);
/* Assign RA/TID translation to the queue. */
iwn_mem_write_2(sc, sc->sched_base + IWN4965_SCHED_TRANS_TBL(qid),
wn->id << 4 | tid);
/* Enable chain-building mode for the queue. */
iwn_prph_setbits(sc, IWN4965_SCHED_QCHAIN_SEL, 1 << qid);
/* Set starting sequence number from the ADDBA request. */
sc->txq[qid].cur = sc->txq[qid].read = (ssn & 0xff);
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
/* Set scheduler window size. */
iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid),
IWN_SCHED_WINSZ);
/* Set scheduler frame limit. */
iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
IWN_SCHED_LIMIT << 16);
/* Enable interrupts for the queue. */
iwn_prph_setbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
/* Mark the queue as active. */
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
IWN4965_TXQ_STATUS_ACTIVE | IWN4965_TXQ_STATUS_AGGR_ENA |
iwn_tid2fifo[tid] << 1);
}
static void
iwn4965_ampdu_tx_stop(struct iwn_softc *sc, int qid, uint8_t tid, uint16_t ssn)
{
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Stop TX scheduler while we're changing its configuration. */
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
IWN4965_TXQ_STATUS_CHGACT);
/* Set starting sequence number from the ADDBA request. */
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
/* Disable interrupts for the queue. */
iwn_prph_clrbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
/* Mark the queue as inactive. */
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
IWN4965_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid] << 1);
}
static void
iwn5000_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
int qid, uint8_t tid, uint16_t ssn)
{
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
struct iwn_node *wn = (void *)ni;
/* Stop TX scheduler while we're changing its configuration. */
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
IWN5000_TXQ_STATUS_CHGACT);
/* Assign RA/TID translation to the queue. */
iwn_mem_write_2(sc, sc->sched_base + IWN5000_SCHED_TRANS_TBL(qid),
wn->id << 4 | tid);
/* Enable chain-building mode for the queue. */
iwn_prph_setbits(sc, IWN5000_SCHED_QCHAIN_SEL, 1 << qid);
/* Enable aggregation for the queue. */
iwn_prph_setbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
/* Set starting sequence number from the ADDBA request. */
sc->txq[qid].cur = sc->txq[qid].read = (ssn & 0xff);
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
/* Set scheduler window size and frame limit. */
iwn_mem_write(sc, sc->sched_base + IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
/* Enable interrupts for the queue. */
iwn_prph_setbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
/* Mark the queue as active. */
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
IWN5000_TXQ_STATUS_ACTIVE | iwn_tid2fifo[tid]);
}
static void
iwn5000_ampdu_tx_stop(struct iwn_softc *sc, int qid, uint8_t tid, uint16_t ssn)
{
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Stop TX scheduler while we're changing its configuration. */
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
IWN5000_TXQ_STATUS_CHGACT);
/* Disable aggregation for the queue. */
iwn_prph_clrbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
/* Set starting sequence number from the ADDBA request. */
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
/* Disable interrupts for the queue. */
iwn_prph_clrbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
/* Mark the queue as inactive. */
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
IWN5000_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid]);
}
/*
* Query calibration tables from the initialization firmware. We do this
* only once at first boot. Called from a process context.
*/
static int
iwn5000_query_calibration(struct iwn_softc *sc)
{
struct iwn5000_calib_config cmd;
int error;
memset(&cmd, 0, sizeof cmd);
cmd.ucode.once.enable = htole32(0xffffffff);
cmd.ucode.once.start = htole32(0xffffffff);
cmd.ucode.once.send = htole32(0xffffffff);
cmd.ucode.flags = htole32(0xffffffff);
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending calibration query\n",
__func__);
error = iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof cmd, 0);
if (error != 0)
return error;
/* Wait at most two seconds for calibration to complete. */
if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE))
error = msleep(sc, &sc->sc_mtx, PCATCH, "iwncal", 2 * hz);
return error;
}
/*
* Send calibration results to the runtime firmware. These results were
* obtained on first boot from the initialization firmware.
*/
static int
iwn5000_send_calibration(struct iwn_softc *sc)
{
int idx, error;
for (idx = 0; idx < IWN5000_PHY_CALIB_MAX_RESULT; idx++) {
if (!(sc->base_params->calib_need & (1<<idx))) {
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"No need of calib %d\n",
idx);
continue; /* no need for this calib */
}
if (sc->calibcmd[idx].buf == NULL) {
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"Need calib idx : %d but no available data\n",
idx);
continue;
}
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"send calibration result idx=%d len=%d\n", idx,
sc->calibcmd[idx].len);
error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, sc->calibcmd[idx].buf,
sc->calibcmd[idx].len, 0);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not send calibration result, error %d\n",
__func__, error);
return error;
}
}
return 0;
}
static int
iwn5000_send_wimax_coex(struct iwn_softc *sc)
{
struct iwn5000_wimax_coex wimax;
#if 0
if (sc->hw_type == IWN_HW_REV_TYPE_6050) {
/* Enable WiMAX coexistence for combo adapters. */
wimax.flags =
IWN_WIMAX_COEX_ASSOC_WA_UNMASK |
IWN_WIMAX_COEX_UNASSOC_WA_UNMASK |
IWN_WIMAX_COEX_STA_TABLE_VALID |
IWN_WIMAX_COEX_ENABLE;
memcpy(wimax.events, iwn6050_wimax_events,
sizeof iwn6050_wimax_events);
} else
#endif
{
/* Disable WiMAX coexistence. */
wimax.flags = 0;
memset(wimax.events, 0, sizeof wimax.events);
}
DPRINTF(sc, IWN_DEBUG_RESET, "%s: Configuring WiMAX coexistence\n",
__func__);
return iwn_cmd(sc, IWN5000_CMD_WIMAX_COEX, &wimax, sizeof wimax, 0);
}
static int
iwn5000_crystal_calib(struct iwn_softc *sc)
{
struct iwn5000_phy_calib_crystal cmd;
memset(&cmd, 0, sizeof cmd);
cmd.code = IWN5000_PHY_CALIB_CRYSTAL;
cmd.ngroups = 1;
cmd.isvalid = 1;
cmd.cap_pin[0] = le32toh(sc->eeprom_crystal) & 0xff;
cmd.cap_pin[1] = (le32toh(sc->eeprom_crystal) >> 16) & 0xff;
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "sending crystal calibration %d, %d\n",
cmd.cap_pin[0], cmd.cap_pin[1]);
return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
}
static int
iwn5000_temp_offset_calib(struct iwn_softc *sc)
{
struct iwn5000_phy_calib_temp_offset cmd;
memset(&cmd, 0, sizeof cmd);
cmd.code = IWN5000_PHY_CALIB_TEMP_OFFSET;
cmd.ngroups = 1;
cmd.isvalid = 1;
if (sc->eeprom_temp != 0)
cmd.offset = htole16(sc->eeprom_temp);
else
cmd.offset = htole16(IWN_DEFAULT_TEMP_OFFSET);
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "setting radio sensor offset to %d\n",
le16toh(cmd.offset));
return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
}
static int
iwn5000_temp_offset_calibv2(struct iwn_softc *sc)
{
struct iwn5000_phy_calib_temp_offsetv2 cmd;
memset(&cmd, 0, sizeof cmd);
cmd.code = IWN5000_PHY_CALIB_TEMP_OFFSET;
cmd.ngroups = 1;
cmd.isvalid = 1;
if (sc->eeprom_temp != 0) {
cmd.offset_low = htole16(sc->eeprom_temp);
cmd.offset_high = htole16(sc->eeprom_temp_high);
} else {
cmd.offset_low = htole16(IWN_DEFAULT_TEMP_OFFSET);
cmd.offset_high = htole16(IWN_DEFAULT_TEMP_OFFSET);
}
cmd.burnt_voltage_ref = htole16(sc->eeprom_voltage);
DPRINTF(sc, IWN_DEBUG_CALIBRATE,
"setting radio sensor low offset to %d, high offset to %d, voltage to %d\n",
le16toh(cmd.offset_low),
le16toh(cmd.offset_high),
le16toh(cmd.burnt_voltage_ref));
return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
}
/*
* This function is called after the runtime firmware notifies us of its
* readiness (called in a process context).
*/
static int
iwn4965_post_alive(struct iwn_softc *sc)
{
int error, qid;
if ((error = iwn_nic_lock(sc)) != 0)
return error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Clear TX scheduler state in SRAM. */
sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
iwn_mem_set_region_4(sc, sc->sched_base + IWN4965_SCHED_CTX_OFF, 0,
IWN4965_SCHED_CTX_LEN / sizeof (uint32_t));
/* Set physical address of TX scheduler rings (1KB aligned). */
iwn_prph_write(sc, IWN4965_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
/* Disable chain mode for all our 16 queues. */
iwn_prph_write(sc, IWN4965_SCHED_QCHAIN_SEL, 0);
for (qid = 0; qid < IWN4965_NTXQUEUES; qid++) {
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), 0);
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
/* Set scheduler window size. */
iwn_mem_write(sc, sc->sched_base +
IWN4965_SCHED_QUEUE_OFFSET(qid), IWN_SCHED_WINSZ);
/* Set scheduler frame limit. */
iwn_mem_write(sc, sc->sched_base +
IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
IWN_SCHED_LIMIT << 16);
}
/* Enable interrupts for all our 16 queues. */
iwn_prph_write(sc, IWN4965_SCHED_INTR_MASK, 0xffff);
/* Identify TX FIFO rings (0-7). */
iwn_prph_write(sc, IWN4965_SCHED_TXFACT, 0xff);
/* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
for (qid = 0; qid < 7; qid++) {
static uint8_t qid2fifo[] = { 3, 2, 1, 0, 4, 5, 6 };
iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
IWN4965_TXQ_STATUS_ACTIVE | qid2fifo[qid] << 1);
}
iwn_nic_unlock(sc);
return 0;
}
/*
* This function is called after the initialization or runtime firmware
* notifies us of its readiness (called in a process context).
*/
static int
iwn5000_post_alive(struct iwn_softc *sc)
{
int error, qid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Switch to using ICT interrupt mode. */
iwn5000_ict_reset(sc);
if ((error = iwn_nic_lock(sc)) != 0){
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__);
return error;
}
/* Clear TX scheduler state in SRAM. */
sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
iwn_mem_set_region_4(sc, sc->sched_base + IWN5000_SCHED_CTX_OFF, 0,
IWN5000_SCHED_CTX_LEN / sizeof (uint32_t));
/* Set physical address of TX scheduler rings (1KB aligned). */
iwn_prph_write(sc, IWN5000_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
/* Enable chain mode for all queues, except command queue. */
if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT)
iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffdf);
else
iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffef);
iwn_prph_write(sc, IWN5000_SCHED_AGGR_SEL, 0);
for (qid = 0; qid < IWN5000_NTXQUEUES; qid++) {
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), 0);
IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
iwn_mem_write(sc, sc->sched_base +
IWN5000_SCHED_QUEUE_OFFSET(qid), 0);
/* Set scheduler window size and frame limit. */
iwn_mem_write(sc, sc->sched_base +
IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
}
/* Enable interrupts for all our 20 queues. */
iwn_prph_write(sc, IWN5000_SCHED_INTR_MASK, 0xfffff);
/* Identify TX FIFO rings (0-7). */
iwn_prph_write(sc, IWN5000_SCHED_TXFACT, 0xff);
/* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT) {
/* Mark TX rings as active. */
for (qid = 0; qid < 11; qid++) {
static uint8_t qid2fifo[] = { 3, 2, 1, 0, 0, 4, 2, 5, 4, 7, 5 };
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]);
}
} else {
/* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
for (qid = 0; qid < 7; qid++) {
static uint8_t qid2fifo[] = { 3, 2, 1, 0, 7, 5, 6 };
iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]);
}
}
iwn_nic_unlock(sc);
/* Configure WiMAX coexistence for combo adapters. */
error = iwn5000_send_wimax_coex(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not configure WiMAX coexistence, error %d\n",
__func__, error);
return error;
}
if (sc->hw_type != IWN_HW_REV_TYPE_5150) {
/* Perform crystal calibration. */
error = iwn5000_crystal_calib(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: crystal calibration failed, error %d\n",
__func__, error);
return error;
}
}
if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) {
/* Query calibration from the initialization firmware. */
if ((error = iwn5000_query_calibration(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not query calibration, error %d\n",
__func__, error);
return error;
}
/*
* We have the calibration results now, reboot with the
* runtime firmware (call ourselves recursively!)
*/
iwn_hw_stop(sc);
error = iwn_hw_init(sc);
} else {
/* Send calibration results to runtime firmware. */
error = iwn5000_send_calibration(sc);
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return error;
}
/*
* The firmware boot code is small and is intended to be copied directly into
* the NIC internal memory (no DMA transfer).
*/
static int
iwn4965_load_bootcode(struct iwn_softc *sc, const uint8_t *ucode, int size)
{
int error, ntries;
size /= sizeof (uint32_t);
if ((error = iwn_nic_lock(sc)) != 0)
return error;
/* Copy microcode image into NIC memory. */
iwn_prph_write_region_4(sc, IWN_BSM_SRAM_BASE,
(const uint32_t *)ucode, size);
iwn_prph_write(sc, IWN_BSM_WR_MEM_SRC, 0);
iwn_prph_write(sc, IWN_BSM_WR_MEM_DST, IWN_FW_TEXT_BASE);
iwn_prph_write(sc, IWN_BSM_WR_DWCOUNT, size);
/* Start boot load now. */
iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START);
/* Wait for transfer to complete. */
for (ntries = 0; ntries < 1000; ntries++) {
if (!(iwn_prph_read(sc, IWN_BSM_WR_CTRL) &
IWN_BSM_WR_CTRL_START))
break;
DELAY(10);
}
if (ntries == 1000) {
device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
__func__);
iwn_nic_unlock(sc);
return ETIMEDOUT;
}
/* Enable boot after power up. */
iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START_EN);
iwn_nic_unlock(sc);
return 0;
}
static int
iwn4965_load_firmware(struct iwn_softc *sc)
{
struct iwn_fw_info *fw = &sc->fw;
struct iwn_dma_info *dma = &sc->fw_dma;
int error;
/* Copy initialization sections into pre-allocated DMA-safe memory. */
memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
fw->init.text, fw->init.textsz);
bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
/* Tell adapter where to find initialization sections. */
if ((error = iwn_nic_lock(sc)) != 0)
return error;
iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->init.datasz);
iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
(dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
iwn_nic_unlock(sc);
/* Load firmware boot code. */
error = iwn4965_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
if (error != 0) {
device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
__func__);
return error;
}
/* Now press "execute". */
IWN_WRITE(sc, IWN_RESET, 0);
/* Wait at most one second for first alive notification. */
if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz)) != 0) {
device_printf(sc->sc_dev,
"%s: timeout waiting for adapter to initialize, error %d\n",
__func__, error);
return error;
}
/* Retrieve current temperature for initial TX power calibration. */
sc->rawtemp = sc->ucode_info.temp[3].chan20MHz;
sc->temp = iwn4965_get_temperature(sc);
/* Copy runtime sections into pre-allocated DMA-safe memory. */
memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
fw->main.text, fw->main.textsz);
bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
/* Tell adapter where to find runtime sections. */
if ((error = iwn_nic_lock(sc)) != 0)
return error;
iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->main.datasz);
iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
(dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE,
IWN_FW_UPDATED | fw->main.textsz);
iwn_nic_unlock(sc);
return 0;
}
static int
iwn5000_load_firmware_section(struct iwn_softc *sc, uint32_t dst,
const uint8_t *section, int size)
{
struct iwn_dma_info *dma = &sc->fw_dma;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Copy firmware section into pre-allocated DMA-safe memory. */
memcpy(dma->vaddr, section, size);
bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
if ((error = iwn_nic_lock(sc)) != 0)
return error;
IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
IWN_FH_TX_CONFIG_DMA_PAUSE);
IWN_WRITE(sc, IWN_FH_SRAM_ADDR(IWN_SRVC_DMACHNL), dst);
IWN_WRITE(sc, IWN_FH_TFBD_CTRL0(IWN_SRVC_DMACHNL),
IWN_LOADDR(dma->paddr));
IWN_WRITE(sc, IWN_FH_TFBD_CTRL1(IWN_SRVC_DMACHNL),
IWN_HIADDR(dma->paddr) << 28 | size);
IWN_WRITE(sc, IWN_FH_TXBUF_STATUS(IWN_SRVC_DMACHNL),
IWN_FH_TXBUF_STATUS_TBNUM(1) |
IWN_FH_TXBUF_STATUS_TBIDX(1) |
IWN_FH_TXBUF_STATUS_TFBD_VALID);
/* Kick Flow Handler to start DMA transfer. */
IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
IWN_FH_TX_CONFIG_DMA_ENA | IWN_FH_TX_CONFIG_CIRQ_HOST_ENDTFD);
iwn_nic_unlock(sc);
/* Wait at most five seconds for FH DMA transfer to complete. */
return msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", 5 * hz);
}
static int
iwn5000_load_firmware(struct iwn_softc *sc)
{
struct iwn_fw_part *fw;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Load the initialization firmware on first boot only. */
fw = (sc->sc_flags & IWN_FLAG_CALIB_DONE) ?
&sc->fw.main : &sc->fw.init;
error = iwn5000_load_firmware_section(sc, IWN_FW_TEXT_BASE,
fw->text, fw->textsz);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not load firmware %s section, error %d\n",
__func__, ".text", error);
return error;
}
error = iwn5000_load_firmware_section(sc, IWN_FW_DATA_BASE,
fw->data, fw->datasz);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not load firmware %s section, error %d\n",
__func__, ".data", error);
return error;
}
/* Now press "execute". */
IWN_WRITE(sc, IWN_RESET, 0);
return 0;
}
/*
* Extract text and data sections from a legacy firmware image.
*/
static int
iwn_read_firmware_leg(struct iwn_softc *sc, struct iwn_fw_info *fw)
{
const uint32_t *ptr;
size_t hdrlen = 24;
uint32_t rev;
ptr = (const uint32_t *)fw->data;
rev = le32toh(*ptr++);
sc->ucode_rev = rev;
/* Check firmware API version. */
if (IWN_FW_API(rev) <= 1) {
device_printf(sc->sc_dev,
"%s: bad firmware, need API version >=2\n", __func__);
return EINVAL;
}
if (IWN_FW_API(rev) >= 3) {
/* Skip build number (version 2 header). */
hdrlen += 4;
ptr++;
}
if (fw->size < hdrlen) {
device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
__func__, fw->size);
return EINVAL;
}
fw->main.textsz = le32toh(*ptr++);
fw->main.datasz = le32toh(*ptr++);
fw->init.textsz = le32toh(*ptr++);
fw->init.datasz = le32toh(*ptr++);
fw->boot.textsz = le32toh(*ptr++);
/* Check that all firmware sections fit. */
if (fw->size < hdrlen + fw->main.textsz + fw->main.datasz +
fw->init.textsz + fw->init.datasz + fw->boot.textsz) {
device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
__func__, fw->size);
return EINVAL;
}
/* Get pointers to firmware sections. */
fw->main.text = (const uint8_t *)ptr;
fw->main.data = fw->main.text + fw->main.textsz;
fw->init.text = fw->main.data + fw->main.datasz;
fw->init.data = fw->init.text + fw->init.textsz;
fw->boot.text = fw->init.data + fw->init.datasz;
return 0;
}
/*
* Extract text and data sections from a TLV firmware image.
*/
static int
iwn_read_firmware_tlv(struct iwn_softc *sc, struct iwn_fw_info *fw,
uint16_t alt)
{
const struct iwn_fw_tlv_hdr *hdr;
const struct iwn_fw_tlv *tlv;
const uint8_t *ptr, *end;
uint64_t altmask;
uint32_t len, tmp;
if (fw->size < sizeof (*hdr)) {
device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
__func__, fw->size);
return EINVAL;
}
hdr = (const struct iwn_fw_tlv_hdr *)fw->data;
if (hdr->signature != htole32(IWN_FW_SIGNATURE)) {
device_printf(sc->sc_dev, "%s: bad firmware signature 0x%08x\n",
__func__, le32toh(hdr->signature));
return EINVAL;
}
DPRINTF(sc, IWN_DEBUG_RESET, "FW: \"%.64s\", build 0x%x\n", hdr->descr,
le32toh(hdr->build));
sc->ucode_rev = le32toh(hdr->rev);
/*
* Select the closest supported alternative that is less than
* or equal to the specified one.
*/
altmask = le64toh(hdr->altmask);
while (alt > 0 && !(altmask & (1ULL << alt)))
alt--; /* Downgrade. */
DPRINTF(sc, IWN_DEBUG_RESET, "using alternative %d\n", alt);
ptr = (const uint8_t *)(hdr + 1);
end = (const uint8_t *)(fw->data + fw->size);
/* Parse type-length-value fields. */
while (ptr + sizeof (*tlv) <= end) {
tlv = (const struct iwn_fw_tlv *)ptr;
len = le32toh(tlv->len);
ptr += sizeof (*tlv);
if (ptr + len > end) {
device_printf(sc->sc_dev,
"%s: firmware too short: %zu bytes\n", __func__,
fw->size);
return EINVAL;
}
/* Skip other alternatives. */
if (tlv->alt != 0 && tlv->alt != htole16(alt))
goto next;
switch (le16toh(tlv->type)) {
case IWN_FW_TLV_MAIN_TEXT:
fw->main.text = ptr;
fw->main.textsz = len;
break;
case IWN_FW_TLV_MAIN_DATA:
fw->main.data = ptr;
fw->main.datasz = len;
break;
case IWN_FW_TLV_INIT_TEXT:
fw->init.text = ptr;
fw->init.textsz = len;
break;
case IWN_FW_TLV_INIT_DATA:
fw->init.data = ptr;
fw->init.datasz = len;
break;
case IWN_FW_TLV_BOOT_TEXT:
fw->boot.text = ptr;
fw->boot.textsz = len;
break;
case IWN_FW_TLV_ENH_SENS:
if (!len)
sc->sc_flags |= IWN_FLAG_ENH_SENS;
break;
case IWN_FW_TLV_PHY_CALIB:
tmp = le32toh(*ptr);
if (tmp < 253) {
sc->reset_noise_gain = tmp;
sc->noise_gain = tmp + 1;
}
break;
case IWN_FW_TLV_PAN:
sc->sc_flags |= IWN_FLAG_PAN_SUPPORT;
DPRINTF(sc, IWN_DEBUG_RESET,
"PAN Support found: %d\n", 1);
break;
case IWN_FW_TLV_FLAGS:
if (len < sizeof(uint32_t))
break;
if (len % sizeof(uint32_t))
break;
sc->tlv_feature_flags = le32toh(*ptr);
DPRINTF(sc, IWN_DEBUG_RESET,
"%s: feature: 0x%08x\n",
__func__,
sc->tlv_feature_flags);
break;
case IWN_FW_TLV_PBREQ_MAXLEN:
case IWN_FW_TLV_RUNT_EVTLOG_PTR:
case IWN_FW_TLV_RUNT_EVTLOG_SIZE:
case IWN_FW_TLV_RUNT_ERRLOG_PTR:
case IWN_FW_TLV_INIT_EVTLOG_PTR:
case IWN_FW_TLV_INIT_EVTLOG_SIZE:
case IWN_FW_TLV_INIT_ERRLOG_PTR:
case IWN_FW_TLV_WOWLAN_INST:
case IWN_FW_TLV_WOWLAN_DATA:
DPRINTF(sc, IWN_DEBUG_RESET,
"TLV type %d recognized but not handled\n",
le16toh(tlv->type));
break;
default:
DPRINTF(sc, IWN_DEBUG_RESET,
"TLV type %d not handled\n", le16toh(tlv->type));
break;
}
next: /* TLV fields are 32-bit aligned. */
ptr += (len + 3) & ~3;
}
return 0;
}
static int
iwn_read_firmware(struct iwn_softc *sc)
{
struct iwn_fw_info *fw = &sc->fw;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
IWN_UNLOCK(sc);
memset(fw, 0, sizeof (*fw));
/* Read firmware image from filesystem. */
sc->fw_fp = firmware_get(sc->fwname);
if (sc->fw_fp == NULL) {
device_printf(sc->sc_dev, "%s: could not read firmware %s\n",
__func__, sc->fwname);
IWN_LOCK(sc);
return EINVAL;
}
IWN_LOCK(sc);
fw->size = sc->fw_fp->datasize;
fw->data = (const uint8_t *)sc->fw_fp->data;
if (fw->size < sizeof (uint32_t)) {
device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
__func__, fw->size);
error = EINVAL;
goto fail;
}
/* Retrieve text and data sections. */
if (*(const uint32_t *)fw->data != 0) /* Legacy image. */
error = iwn_read_firmware_leg(sc, fw);
else
error = iwn_read_firmware_tlv(sc, fw, 1);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not read firmware sections, error %d\n",
__func__, error);
goto fail;
}
device_printf(sc->sc_dev, "%s: ucode rev=0x%08x\n", __func__, sc->ucode_rev);
/* Make sure text and data sections fit in hardware memory. */
if (fw->main.textsz > sc->fw_text_maxsz ||
fw->main.datasz > sc->fw_data_maxsz ||
fw->init.textsz > sc->fw_text_maxsz ||
fw->init.datasz > sc->fw_data_maxsz ||
fw->boot.textsz > IWN_FW_BOOT_TEXT_MAXSZ ||
(fw->boot.textsz & 3) != 0) {
device_printf(sc->sc_dev, "%s: firmware sections too large\n",
__func__);
error = EINVAL;
goto fail;
}
/* We can proceed with loading the firmware. */
return 0;
fail: iwn_unload_firmware(sc);
return error;
}
static void
iwn_unload_firmware(struct iwn_softc *sc)
{
firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
sc->fw_fp = NULL;
}
static int
iwn_clock_wait(struct iwn_softc *sc)
{
int ntries;
/* Set "initialization complete" bit. */
IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
/* Wait for clock stabilization. */
for (ntries = 0; ntries < 2500; ntries++) {
if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_MAC_CLOCK_READY)
return 0;
DELAY(10);
}
device_printf(sc->sc_dev,
"%s: timeout waiting for clock stabilization\n", __func__);
return ETIMEDOUT;
}
static int
iwn_apm_init(struct iwn_softc *sc)
{
uint32_t reg;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Disable L0s exit timer (NMI bug workaround). */
IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_DIS_L0S_TIMER);
/* Don't wait for ICH L0s (ICH bug workaround). */
IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_L1A_NO_L0S_RX);
/* Set FH wait threshold to max (HW bug under stress workaround). */
IWN_SETBITS(sc, IWN_DBG_HPET_MEM, 0xffff0000);
/* Enable HAP INTA to move adapter from L1a to L0s. */
IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_HAP_WAKE_L1A);
/* Retrieve PCIe Active State Power Management (ASPM). */
reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + PCIER_LINK_CTL, 4);
/* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
if (reg & PCIEM_LINK_CTL_ASPMC_L1) /* L1 Entry enabled. */
IWN_SETBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
else
IWN_CLRBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
if (sc->base_params->pll_cfg_val)
IWN_SETBITS(sc, IWN_ANA_PLL, sc->base_params->pll_cfg_val);
/* Wait for clock stabilization before accessing prph. */
if ((error = iwn_clock_wait(sc)) != 0)
return error;
if ((error = iwn_nic_lock(sc)) != 0)
return error;
if (sc->hw_type == IWN_HW_REV_TYPE_4965) {
/* Enable DMA and BSM (Bootstrap State Machine). */
iwn_prph_write(sc, IWN_APMG_CLK_EN,
IWN_APMG_CLK_CTRL_DMA_CLK_RQT |
IWN_APMG_CLK_CTRL_BSM_CLK_RQT);
} else {
/* Enable DMA. */
iwn_prph_write(sc, IWN_APMG_CLK_EN,
IWN_APMG_CLK_CTRL_DMA_CLK_RQT);
}
DELAY(20);
/* Disable L1-Active. */
iwn_prph_setbits(sc, IWN_APMG_PCI_STT, IWN_APMG_PCI_STT_L1A_DIS);
iwn_nic_unlock(sc);
return 0;
}
static void
iwn_apm_stop_master(struct iwn_softc *sc)
{
int ntries;
/* Stop busmaster DMA activity. */
IWN_SETBITS(sc, IWN_RESET, IWN_RESET_STOP_MASTER);
for (ntries = 0; ntries < 100; ntries++) {
if (IWN_READ(sc, IWN_RESET) & IWN_RESET_MASTER_DISABLED)
return;
DELAY(10);
}
device_printf(sc->sc_dev, "%s: timeout waiting for master\n", __func__);
}
static void
iwn_apm_stop(struct iwn_softc *sc)
{
iwn_apm_stop_master(sc);
/* Reset the entire device. */
IWN_SETBITS(sc, IWN_RESET, IWN_RESET_SW);
DELAY(10);
/* Clear "initialization complete" bit. */
IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
}
static int
iwn4965_nic_config(struct iwn_softc *sc)
{
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (IWN_RFCFG_TYPE(sc->rfcfg) == 1) {
/*
* I don't believe this to be correct but this is what the
* vendor driver is doing. Probably the bits should not be
* shifted in IWN_RFCFG_*.
*/
IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
IWN_RFCFG_TYPE(sc->rfcfg) |
IWN_RFCFG_STEP(sc->rfcfg) |
IWN_RFCFG_DASH(sc->rfcfg));
}
IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
return 0;
}
static int
iwn5000_nic_config(struct iwn_softc *sc)
{
uint32_t tmp;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (IWN_RFCFG_TYPE(sc->rfcfg) < 3) {
IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
IWN_RFCFG_TYPE(sc->rfcfg) |
IWN_RFCFG_STEP(sc->rfcfg) |
IWN_RFCFG_DASH(sc->rfcfg));
}
IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
if ((error = iwn_nic_lock(sc)) != 0)
return error;
iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_EARLY_PWROFF_DIS);
if (sc->hw_type == IWN_HW_REV_TYPE_1000) {
/*
* Select first Switching Voltage Regulator (1.32V) to
* solve a stability issue related to noisy DC2DC line
* in the silicon of 1000 Series.
*/
tmp = iwn_prph_read(sc, IWN_APMG_DIGITAL_SVR);
tmp &= ~IWN_APMG_DIGITAL_SVR_VOLTAGE_MASK;
tmp |= IWN_APMG_DIGITAL_SVR_VOLTAGE_1_32;
iwn_prph_write(sc, IWN_APMG_DIGITAL_SVR, tmp);
}
iwn_nic_unlock(sc);
if (sc->sc_flags & IWN_FLAG_INTERNAL_PA) {
/* Use internal power amplifier only. */
IWN_WRITE(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_RADIO_2X2_IPA);
}
if (sc->base_params->additional_nic_config && sc->calib_ver >= 6) {
/* Indicate that ROM calibration version is >=6. */
IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_CALIB_VER6);
}
if (sc->base_params->additional_gp_drv_bit)
IWN_SETBITS(sc, IWN_GP_DRIVER,
sc->base_params->additional_gp_drv_bit);
return 0;
}
/*
* Take NIC ownership over Intel Active Management Technology (AMT).
*/
static int
iwn_hw_prepare(struct iwn_softc *sc)
{
int ntries;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
/* Check if hardware is ready. */
IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
for (ntries = 0; ntries < 5; ntries++) {
if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
IWN_HW_IF_CONFIG_NIC_READY)
return 0;
DELAY(10);
}
/* Hardware not ready, force into ready state. */
IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_PREPARE);
for (ntries = 0; ntries < 15000; ntries++) {
if (!(IWN_READ(sc, IWN_HW_IF_CONFIG) &
IWN_HW_IF_CONFIG_PREPARE_DONE))
break;
DELAY(10);
}
if (ntries == 15000)
return ETIMEDOUT;
/* Hardware should be ready now. */
IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
for (ntries = 0; ntries < 5; ntries++) {
if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
IWN_HW_IF_CONFIG_NIC_READY)
return 0;
DELAY(10);
}
return ETIMEDOUT;
}
static int
iwn_hw_init(struct iwn_softc *sc)
{
struct iwn_ops *ops = &sc->ops;
int error, chnl, qid;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
/* Clear pending interrupts. */
IWN_WRITE(sc, IWN_INT, 0xffffffff);
if ((error = iwn_apm_init(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not power ON adapter, error %d\n", __func__,
error);
return error;
}
/* Select VMAIN power source. */
if ((error = iwn_nic_lock(sc)) != 0)
return error;
iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_PWR_SRC_MASK);
iwn_nic_unlock(sc);
/* Perform adapter-specific initialization. */
if ((error = ops->nic_config(sc)) != 0)
return error;
/* Initialize RX ring. */
if ((error = iwn_nic_lock(sc)) != 0)
return error;
IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
IWN_WRITE(sc, IWN_FH_RX_WPTR, 0);
/* Set physical address of RX ring (256-byte aligned). */
IWN_WRITE(sc, IWN_FH_RX_BASE, sc->rxq.desc_dma.paddr >> 8);
/* Set physical address of RX status (16-byte aligned). */
IWN_WRITE(sc, IWN_FH_STATUS_WPTR, sc->rxq.stat_dma.paddr >> 4);
/* Enable RX. */
IWN_WRITE(sc, IWN_FH_RX_CONFIG,
IWN_FH_RX_CONFIG_ENA |
IWN_FH_RX_CONFIG_IGN_RXF_EMPTY | /* HW bug workaround */
IWN_FH_RX_CONFIG_IRQ_DST_HOST |
IWN_FH_RX_CONFIG_SINGLE_FRAME |
IWN_FH_RX_CONFIG_RB_TIMEOUT(0) |
IWN_FH_RX_CONFIG_NRBD(IWN_RX_RING_COUNT_LOG));
iwn_nic_unlock(sc);
IWN_WRITE(sc, IWN_FH_RX_WPTR, (IWN_RX_RING_COUNT - 1) & ~7);
if ((error = iwn_nic_lock(sc)) != 0)
return error;
/* Initialize TX scheduler. */
iwn_prph_write(sc, sc->sched_txfact_addr, 0);
/* Set physical address of "keep warm" page (16-byte aligned). */
IWN_WRITE(sc, IWN_FH_KW_ADDR, sc->kw_dma.paddr >> 4);
/* Initialize TX rings. */
for (qid = 0; qid < sc->ntxqs; qid++) {
struct iwn_tx_ring *txq = &sc->txq[qid];
/* Set physical address of TX ring (256-byte aligned). */
IWN_WRITE(sc, IWN_FH_CBBC_QUEUE(qid),
txq->desc_dma.paddr >> 8);
}
iwn_nic_unlock(sc);
/* Enable DMA channels. */
for (chnl = 0; chnl < sc->ndmachnls; chnl++) {
IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl),
IWN_FH_TX_CONFIG_DMA_ENA |
IWN_FH_TX_CONFIG_DMA_CREDIT_ENA);
}
/* Clear "radio off" and "commands blocked" bits. */
IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CMD_BLOCKED);
/* Clear pending interrupts. */
IWN_WRITE(sc, IWN_INT, 0xffffffff);
/* Enable interrupt coalescing. */
IWN_WRITE(sc, IWN_INT_COALESCING, 512 / 8);
/* Enable interrupts. */
IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
/* _Really_ make sure "radio off" bit is cleared! */
IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
/* Enable shadow registers. */
if (sc->base_params->shadow_reg_enable)
IWN_SETBITS(sc, IWN_SHADOW_REG_CTRL, 0x800fffff);
if ((error = ops->load_firmware(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not load firmware, error %d\n", __func__,
error);
return error;
}
/* Wait at most one second for firmware alive notification. */
if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz)) != 0) {
device_printf(sc->sc_dev,
"%s: timeout waiting for adapter to initialize, error %d\n",
__func__, error);
return error;
}
/* Do post-firmware initialization. */
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return ops->post_alive(sc);
}
static void
iwn_hw_stop(struct iwn_softc *sc)
{
int chnl, qid, ntries;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
IWN_WRITE(sc, IWN_RESET, IWN_RESET_NEVO);
/* Disable interrupts. */
IWN_WRITE(sc, IWN_INT_MASK, 0);
IWN_WRITE(sc, IWN_INT, 0xffffffff);
IWN_WRITE(sc, IWN_FH_INT, 0xffffffff);
sc->sc_flags &= ~IWN_FLAG_USE_ICT;
/* Make sure we no longer hold the NIC lock. */
iwn_nic_unlock(sc);
/* Stop TX scheduler. */
iwn_prph_write(sc, sc->sched_txfact_addr, 0);
/* Stop all DMA channels. */
if (iwn_nic_lock(sc) == 0) {
for (chnl = 0; chnl < sc->ndmachnls; chnl++) {
IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl), 0);
for (ntries = 0; ntries < 200; ntries++) {
if (IWN_READ(sc, IWN_FH_TX_STATUS) &
IWN_FH_TX_STATUS_IDLE(chnl))
break;
DELAY(10);
}
}
iwn_nic_unlock(sc);
}
/* Stop RX ring. */
iwn_reset_rx_ring(sc, &sc->rxq);
/* Reset all TX rings. */
for (qid = 0; qid < sc->ntxqs; qid++)
iwn_reset_tx_ring(sc, &sc->txq[qid]);
if (iwn_nic_lock(sc) == 0) {
iwn_prph_write(sc, IWN_APMG_CLK_DIS,
IWN_APMG_CLK_CTRL_DMA_CLK_RQT);
iwn_nic_unlock(sc);
}
DELAY(5);
/* Power OFF adapter. */
iwn_apm_stop(sc);
}
static void
iwn_panicked(void *arg0, int pending)
{
struct iwn_softc *sc = arg0;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
#if 0
int error;
#endif
if (vap == NULL) {
printf("%s: null vap\n", __func__);
return;
}
device_printf(sc->sc_dev, "%s: controller panicked, iv_state = %d; "
"restarting\n", __func__, vap->iv_state);
/*
* This is not enough work. We need to also reinitialise
* the correct transmit state for aggregation enabled queues,
* which has a very specific requirement of
* ring index = 802.11 seqno % 256. If we don't do this (which
* we definitely don't!) then the firmware will just panic again.
*/
#if 1
ieee80211_restart_all(ic);
#else
IWN_LOCK(sc);
iwn_stop_locked(sc);
if ((error = iwn_init_locked(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not init hardware\n", __func__);
goto unlock;
}
if (vap->iv_state >= IEEE80211_S_AUTH &&
(error = iwn_auth(sc, vap)) != 0) {
device_printf(sc->sc_dev,
"%s: could not move to auth state\n", __func__);
}
if (vap->iv_state >= IEEE80211_S_RUN &&
(error = iwn_run(sc, vap)) != 0) {
device_printf(sc->sc_dev,
"%s: could not move to run state\n", __func__);
}
unlock:
IWN_UNLOCK(sc);
#endif
}
static int
iwn_init_locked(struct iwn_softc *sc)
{
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
IWN_LOCK_ASSERT(sc);
if (sc->sc_flags & IWN_FLAG_RUNNING)
goto end;
sc->sc_flags |= IWN_FLAG_RUNNING;
if ((error = iwn_hw_prepare(sc)) != 0) {
device_printf(sc->sc_dev, "%s: hardware not ready, error %d\n",
__func__, error);
goto fail;
}
/* Initialize interrupt mask to default value. */
sc->int_mask = IWN_INT_MASK_DEF;
sc->sc_flags &= ~IWN_FLAG_USE_ICT;
/* Check that the radio is not disabled by hardware switch. */
if (!(IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)) {
iwn_stop_locked(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return (1);
}
/* Read firmware images from the filesystem. */
if ((error = iwn_read_firmware(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not read firmware, error %d\n", __func__,
error);
goto fail;
}
/* Initialize hardware and upload firmware. */
error = iwn_hw_init(sc);
iwn_unload_firmware(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not initialize hardware, error %d\n", __func__,
error);
goto fail;
}
/* Configure adapter now that it is ready. */
if ((error = iwn_config(sc)) != 0) {
device_printf(sc->sc_dev,
"%s: could not configure device, error %d\n", __func__,
error);
goto fail;
}
callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc);
end:
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return (0);
fail:
iwn_stop_locked(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__);
return (-1);
}
static int
iwn_init(struct iwn_softc *sc)
{
int error;
IWN_LOCK(sc);
error = iwn_init_locked(sc);
IWN_UNLOCK(sc);
return (error);
}
static void
iwn_stop_locked(struct iwn_softc *sc)
{
IWN_LOCK_ASSERT(sc);
if (!(sc->sc_flags & IWN_FLAG_RUNNING))
return;
sc->sc_is_scanning = 0;
sc->sc_tx_timer = 0;
callout_stop(&sc->watchdog_to);
callout_stop(&sc->scan_timeout);
callout_stop(&sc->calib_to);
sc->sc_flags &= ~IWN_FLAG_RUNNING;
/* Power OFF hardware. */
iwn_hw_stop(sc);
}
static void
iwn_stop(struct iwn_softc *sc)
{
IWN_LOCK(sc);
iwn_stop_locked(sc);
IWN_UNLOCK(sc);
}
/*
* Callback from net80211 to start a scan.
*/
static void
iwn_scan_start(struct ieee80211com *ic)
{
struct iwn_softc *sc = ic->ic_softc;
IWN_LOCK(sc);
/* make the link LED blink while we're scanning */
iwn_set_led(sc, IWN_LED_LINK, 20, 2);
IWN_UNLOCK(sc);
}
/*
* Callback from net80211 to terminate a scan.
*/
static void
iwn_scan_end(struct ieee80211com *ic)
{
struct iwn_softc *sc = ic->ic_softc;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
IWN_LOCK(sc);
if (vap->iv_state == IEEE80211_S_RUN) {
/* Set link LED to ON status if we are associated */
iwn_set_led(sc, IWN_LED_LINK, 0, 1);
}
IWN_UNLOCK(sc);
}
/*
* Callback from net80211 to force a channel change.
*/
static void
iwn_set_channel(struct ieee80211com *ic)
{
struct iwn_softc *sc = ic->ic_softc;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
IWN_LOCK(sc);
/*
* Only need to set the channel in Monitor mode. AP scanning and auth
* are already taken care of by their respective firmware commands.
*/
if (ic->ic_opmode == IEEE80211_M_MONITOR) {
error = iwn_config(sc);
if (error != 0)
device_printf(sc->sc_dev,
"%s: error %d settting channel\n", __func__, error);
}
IWN_UNLOCK(sc);
}
/*
* Callback from net80211 to start scanning of the current channel.
*/
static void
iwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
{
struct ieee80211vap *vap = ss->ss_vap;
struct ieee80211com *ic = vap->iv_ic;
struct iwn_softc *sc = ic->ic_softc;
int error;
IWN_LOCK(sc);
error = iwn_scan(sc, vap, ss, ic->ic_curchan);
IWN_UNLOCK(sc);
if (error != 0)
ieee80211_cancel_scan(vap);
}
/*
* Callback from net80211 to handle the minimum dwell time being met.
* The intent is to terminate the scan but we just let the firmware
* notify us when it's finished as we have no safe way to abort it.
*/
static void
iwn_scan_mindwell(struct ieee80211_scan_state *ss)
{
/* NB: don't try to abort scan; wait for firmware to finish */
}
#ifdef IWN_DEBUG
#define IWN_DESC(x) case x: return #x
/*
* Translate CSR code to string
*/
static char *iwn_get_csr_string(int csr)
{
switch (csr) {
IWN_DESC(IWN_HW_IF_CONFIG);
IWN_DESC(IWN_INT_COALESCING);
IWN_DESC(IWN_INT);
IWN_DESC(IWN_INT_MASK);
IWN_DESC(IWN_FH_INT);
IWN_DESC(IWN_GPIO_IN);
IWN_DESC(IWN_RESET);
IWN_DESC(IWN_GP_CNTRL);
IWN_DESC(IWN_HW_REV);
IWN_DESC(IWN_EEPROM);
IWN_DESC(IWN_EEPROM_GP);
IWN_DESC(IWN_OTP_GP);
IWN_DESC(IWN_GIO);
IWN_DESC(IWN_GP_UCODE);
IWN_DESC(IWN_GP_DRIVER);
IWN_DESC(IWN_UCODE_GP1);
IWN_DESC(IWN_UCODE_GP2);
IWN_DESC(IWN_LED);
IWN_DESC(IWN_DRAM_INT_TBL);
IWN_DESC(IWN_GIO_CHICKEN);
IWN_DESC(IWN_ANA_PLL);
IWN_DESC(IWN_HW_REV_WA);
IWN_DESC(IWN_DBG_HPET_MEM);
default:
return "UNKNOWN CSR";
}
}
/*
* This function print firmware register
*/
static void
iwn_debug_register(struct iwn_softc *sc)
{
int i;
static const uint32_t csr_tbl[] = {
IWN_HW_IF_CONFIG,
IWN_INT_COALESCING,
IWN_INT,
IWN_INT_MASK,
IWN_FH_INT,
IWN_GPIO_IN,
IWN_RESET,
IWN_GP_CNTRL,
IWN_HW_REV,
IWN_EEPROM,
IWN_EEPROM_GP,
IWN_OTP_GP,
IWN_GIO,
IWN_GP_UCODE,
IWN_GP_DRIVER,
IWN_UCODE_GP1,
IWN_UCODE_GP2,
IWN_LED,
IWN_DRAM_INT_TBL,
IWN_GIO_CHICKEN,
IWN_ANA_PLL,
IWN_HW_REV_WA,
IWN_DBG_HPET_MEM,
};
DPRINTF(sc, IWN_DEBUG_REGISTER,
"CSR values: (2nd byte of IWN_INT_COALESCING is IWN_INT_PERIODIC)%s",
"\n");
for (i = 0; i < nitems(csr_tbl); i++){
DPRINTF(sc, IWN_DEBUG_REGISTER," %10s: 0x%08x ",
iwn_get_csr_string(csr_tbl[i]), IWN_READ(sc, csr_tbl[i]));
if ((i+1) % 3 == 0)
DPRINTF(sc, IWN_DEBUG_REGISTER,"%s","\n");
}
DPRINTF(sc, IWN_DEBUG_REGISTER,"%s","\n");
}
#endif
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