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freebsd-nq/sys/dev/iwn/if_iwn.c
Adrian Chadd 598003be2d [iwn] Don't try to seamlessly recover from a firmware panic; just restart 
the interface.

I know this may be unpopular, but iwn is not yet completely ready for
a transparent firmware restart.  I have this thing panic my laptop
reliably because 11n state isn't kept in sync and the TX completion
path ends up trying to free a null node reference.
2016-04-03 23:39:58 +00:00

9036 lines
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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 int iwn4965_attach(struct iwn_softc *, uint16_t);
static int 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 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_media_change(struct ifnet *);
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 *,
struct iwn_rx_data *);
static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *,
struct iwn_rx_data *);
static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *,
struct iwn_rx_data *);
static void iwn5000_rx_calib_results(struct iwn_softc *,
struct iwn_rx_desc *, struct iwn_rx_data *);
static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *,
struct iwn_rx_data *);
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_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int,
uint8_t);
static void iwn_ampdu_tx_done(struct iwn_softc *, int, 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_intr(struct iwn_softc *);
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 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_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_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 *,
struct ieee80211_channel *, int);
static int iwn5000_set_txpower(struct iwn_softc *,
struct ieee80211_channel *, 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_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_radio_on(void *, int);
static void iwn_radio_off(void *, int);
static void iwn_panicked(void *, int);
static void iwn_init_locked(struct iwn_softc *);
static void 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 *);
static void iwn_hw_reset(void *, int);
#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_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)
error = iwn4965_attach(sc, pci_get_device(dev));
else
error = iwn5000_attach(sc, pci_get_device(dev));
if (error != 0) {
device_printf(dev, "could not attach device, error %d\n",
error);
goto fail;
}
/*
* 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_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->watchdog_to, &sc->sc_mtx, 0);
TASK_INIT(&sc->sc_reinit_task, 0, iwn_hw_reset, sc);
TASK_INIT(&sc->sc_radioon_task, 0, iwn_radio_on, sc);
TASK_INIT(&sc->sc_radiooff_task, 0, iwn_radio_off, 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:
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 int
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->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__);
return 0;
}
static int
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->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;
return 0;
}
/*
* 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;
ieee80211_ratectl_init(vap);
/* Complete setup. */
ieee80211_vap_attach(vap, iwn_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);
ieee80211_draintask(&sc->sc_ic, &sc->sc_reinit_task);
ieee80211_draintask(&sc->sc_ic, &sc->sc_radioon_task);
ieee80211_draintask(&sc->sc_ic, &sc->sc_radiooff_task);
iwn_stop(sc);
taskqueue_drain_all(sc->sc_tq);
taskqueue_free(sc->sc_tq);
callout_drain(&sc->watchdog_to);
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;
}
/* 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;
}
}
/* 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
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;
/* 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 ones only). */
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 ones only). */
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];
struct ieee80211_channel *c;
uint8_t chan;
int i, nflags;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
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;
}
if (*nchans >= maxchans)
break;
chan = band->chan[i];
nflags = iwn_eeprom_channel_flags(&channels[i]);
c = &chans[(*nchans)++];
c->ic_ieee = chan;
c->ic_maxregpower = channels[i].maxpwr;
c->ic_maxpower = 2*c->ic_maxregpower;
if (n == 0) { /* 2GHz band */
c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_G);
/* G =>'s B is supported */
c->ic_flags = IEEE80211_CHAN_B | nflags;
if (*nchans >= maxchans)
break;
c = &chans[(*nchans)++];
c[0] = c[-1];
c->ic_flags = IEEE80211_CHAN_G | nflags;
} else { /* 5GHz band */
c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_A);
c->ic_flags = IEEE80211_CHAN_A | nflags;
}
/* Save maximum allowed TX power for this channel. */
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);
if (sc->sc_flags & IWN_FLAG_HAS_11N) {
if (*nchans >= maxchans)
break;
/* add HT20, HT40 added separately */
c = &chans[(*nchans)++];
c[0] = c[-1];
c->ic_flags |= IEEE80211_CHAN_HT20;
}
}
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 ieee80211com *ic = &sc->sc_ic;
struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
const struct iwn_chan_band *band = &iwn_bands[n];
struct ieee80211_channel *c, *cent, *extc;
uint8_t chan;
int i, 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;
}
if (*nchans + 1 >= maxchans)
break;
chan = band->chan[i];
nflags = iwn_eeprom_channel_flags(&channels[i]);
/*
* Each entry defines an HT40 channel pair; find the
* center channel, then the extension channel above.
*/
cent = ieee80211_find_channel_byieee(ic, chan,
(n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A));
if (cent == NULL) { /* XXX shouldn't happen */
device_printf(sc->sc_dev,
"%s: no entry for channel %d\n", __func__, chan);
continue;
}
extc = ieee80211_find_channel(ic, cent->ic_freq+20,
(n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A));
if (extc == NULL) {
DPRINTF(sc, IWN_DEBUG_RESET,
"%s: skip chan %d, extension channel not found\n",
__func__, chan);
continue;
}
DPRINTF(sc, IWN_DEBUG_RESET,
"add ht40 chan %d flags 0x%x maxpwr %d\n",
chan, channels[i].flags, channels[i].maxpwr);
c = &chans[(*nchans)++];
c[0] = cent[0];
c->ic_extieee = extc->ic_ieee;
c->ic_flags &= ~IEEE80211_CHAN_HT;
c->ic_flags |= IEEE80211_CHAN_HT40U | nflags;
c = &chans[(*nchans)++];
c[0] = extc[0];
c->ic_extieee = cent->ic_ieee;
c->ic_flags &= ~IEEE80211_CHAN_HT;
c->ic_flags |= IEEE80211_CHAN_HT40D | nflags;
}
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])
{
return malloc(sizeof (struct iwn_node), M_80211_NODE,M_NOWAIT | M_ZERO);
}
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 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_media_change(struct ifnet *ifp)
{
int error;
error = ieee80211_media_change(ifp);
/* NB: only the fixed rate can change and that doesn't need a reset */
return (error == ENETRESET ? 0 : error);
}
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 */
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 */
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_data *data)
{
struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__);
bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
/* 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 iwn_ops *ops = &sc->ops;
struct ieee80211com *ic = &sc->sc_ic;
struct iwn_rx_ring *ring = &sc->rxq;
struct ieee80211_frame *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);
bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
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__);
}
/* Physical address may have changed. */
ring->desc[ring->cur] = htole32(paddr >> 8);
bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map,
BUS_DMASYNC_PREWRITE);
counter_u64_add(ic->ic_ierrors, 1);
return;
}
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 *);
if (len >= sizeof(struct ieee80211_frame_min))
ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)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;
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;
switch (stat->rate) {
/* CCK rates. */
case 10: tap->wr_rate = 2; break;
case 20: tap->wr_rate = 4; break;
case 55: tap->wr_rate = 11; break;
case 110: tap->wr_rate = 22; break;
/* OFDM rates. */
case 0xd: tap->wr_rate = 12; break;
case 0xf: tap->wr_rate = 18; break;
case 0x5: tap->wr_rate = 24; break;
case 0x7: tap->wr_rate = 36; break;
case 0x9: tap->wr_rate = 48; break;
case 0xb: tap->wr_rate = 72; break;
case 0x1: tap->wr_rate = 96; break;
case 0x3: tap->wr_rate = 108; break;
/* Unknown rate: should not happen. */
default: tap->wr_rate = 0;
}
}
/*
* 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 *);
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);
/* 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);
IWN_LOCK(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
}
/* Process an incoming Compressed BlockAck. */
static void
iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc,
struct iwn_rx_data *data)
{
struct iwn_ops *ops = &sc->ops;
struct iwn_node *wn;
struct ieee80211_node *ni;
struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1);
struct iwn_tx_ring *txq;
struct iwn_tx_data *txdata;
struct ieee80211_tx_ampdu *tap;
struct mbuf *m;
uint64_t bitmap;
uint16_t ssn;
uint8_t tid;
int ackfailcnt = 0, i, lastidx, qid, *res, shift;
int tx_ok = 0, tx_err = 0;
DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, "->%s begin\n", __func__);
bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
qid = le16toh(ba->qid);
txq = &sc->txq[ba->qid];
tap = sc->qid2tap[ba->qid];
tid = tap->txa_tid;
wn = (void *)tap->txa_ni;
res = NULL;
ssn = 0;
if (!IEEE80211_AMPDU_RUNNING(tap)) {
res = tap->txa_private;
ssn = tap->txa_start & 0xfff;
}
for (lastidx = le16toh(ba->ssn) & 0xff; txq->read != lastidx;) {
txdata = &txq->data[txq->read];
/* Unmap and free mbuf. */
bus_dmamap_sync(txq->data_dmat, txdata->map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(txq->data_dmat, txdata->map);
m = txdata->m, txdata->m = NULL;
ni = txdata->ni, txdata->ni = NULL;
KASSERT(ni != NULL, ("no node"));
KASSERT(m != NULL, ("no mbuf"));
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: freeing m=%p\n", __func__, m);
ieee80211_tx_complete(ni, m, 1);
txq->queued--;
txq->read = (txq->read + 1) % IWN_TX_RING_COUNT;
}
if (txq->queued == 0 && res != NULL) {
iwn_nic_lock(sc);
ops->ampdu_tx_stop(sc, qid, tid, ssn);
iwn_nic_unlock(sc);
sc->qid2tap[qid] = NULL;
free(res, M_DEVBUF);
return;
}
if (wn->agg[tid].bitmap == 0)
return;
shift = wn->agg[tid].startidx - ((le16toh(ba->seq) >> 4) & 0xff);
if (shift < 0)
shift += 0x100;
if (wn->agg[tid].nframes > (64 - shift))
return;
/*
* Walk the bitmap and calculate how many successful and failed
* attempts are made.
*
* Yes, the rate control code doesn't know these are A-MPDU
* subframes and that it's okay to fail some of these.
*/
ni = tap->txa_ni;
bitmap = (le64toh(ba->bitmap) >> shift) & wn->agg[tid].bitmap;
for (i = 0; bitmap; i++) {
if ((bitmap & 1) == 0) {
tx_err ++;
ieee80211_ratectl_tx_complete(ni->ni_vap, ni,
IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
} else {
tx_ok ++;
ieee80211_ratectl_tx_complete(ni->ni_vap, ni,
IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
}
bitmap >>= 1;
}
DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT,
"->%s: end; %d ok; %d err\n",__func__, tx_ok, tx_err);
}
/*
* 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_rx_data *data)
{
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 clib done\n",
__func__);
return;
}
len = (le32toh(desc->len) & 0x3fff) - 4;
bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
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_rx_data *data)
{
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;
}
bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
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);
struct iwn_tx_ring *ring;
int qid;
qid = desc->qid & 0xf;
ring = &sc->txq[qid];
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));
bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
if (qid >= sc->firstaggqueue) {
iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes,
stat->ackfailcnt, &stat->status);
} else {
iwn_tx_done(sc, desc, 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);
struct iwn_tx_ring *ring;
int qid;
qid = desc->qid & 0xf;
ring = &sc->txq[qid];
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, desc->qid & 0xf, desc->idx);
#endif
bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
if (qid >= sc->firstaggqueue) {
iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes,
stat->ackfailcnt, &stat->status);
} else {
iwn_tx_done(sc, desc, stat->ackfailcnt,
le16toh(stat->status) & 0xff);
}
}
/*
* Adapter-independent backend for TX_DONE firmware notifications.
*/
static void
iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int ackfailcnt,
uint8_t status)
{
struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
struct iwn_tx_data *data = &ring->data[desc->idx];
struct mbuf *m;
struct ieee80211_node *ni;
struct ieee80211vap *vap;
KASSERT(data->ni != NULL, ("no node"));
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;
vap = ni->ni_vap;
/*
* Update rate control statistics for the node.
*/
if (status & IWN_TX_FAIL)
ieee80211_ratectl_tx_complete(vap, ni,
IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
else
ieee80211_ratectl_tx_complete(vap, ni,
IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
/*
* 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);
sc->sc_tx_timer = 0;
if (--ring->queued < IWN_TX_RING_LOMARK)
sc->qfullmsk &= ~(1 << ring->qid);
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 void
iwn_ampdu_tx_done(struct iwn_softc *sc, int qid, int idx, int nframes,
int ackfailcnt, void *stat)
{
struct iwn_ops *ops = &sc->ops;
struct iwn_tx_ring *ring = &sc->txq[qid];
struct iwn_tx_data *data;
struct mbuf *m;
struct iwn_node *wn;
struct ieee80211_node *ni;
struct ieee80211_tx_ampdu *tap;
uint64_t bitmap;
uint32_t *status = stat;
uint16_t *aggstatus = stat;
uint16_t ssn;
uint8_t tid;
int bit, i, lastidx, *res, seqno, shift, start;
/* XXX TODO: status is le16 field! Grr */
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: nframes=%d, status=0x%08x\n",
__func__,
nframes,
*status);
tap = sc->qid2tap[qid];
tid = tap->txa_tid;
wn = (void *)tap->txa_ni;
ni = tap->txa_ni;
/*
* XXX TODO: ACK and RTS failures would be nice here!
*/
/*
* A-MPDU single frame status - if we failed to transmit it
* in A-MPDU, then it may be a permanent failure.
*
* XXX TODO: check what the Linux iwlwifi driver does here;
* there's some permanent and temporary failures that may be
* handled differently.
*/
if (nframes == 1) {
if ((*status & 0xff) != 1 && (*status & 0xff) != 2) {
#ifdef NOT_YET
printf("ieee80211_send_bar()\n");
#endif
/*
* If we completely fail a transmit, make sure a
* notification is pushed up to the rate control
* layer.
*/
ieee80211_ratectl_tx_complete(ni->ni_vap,
ni,
IEEE80211_RATECTL_TX_FAILURE,
&ackfailcnt,
NULL);
} else {
/*
* If nframes=1, then we won't be getting a BA for
* this frame. Ensure that we correctly update the
* rate control code with how many retries were
* needed to send it.
*/
ieee80211_ratectl_tx_complete(ni->ni_vap,
ni,
IEEE80211_RATECTL_TX_SUCCESS,
&ackfailcnt,
NULL);
}
}
bitmap = 0;
start = idx;
for (i = 0; i < nframes; i++) {
if (le16toh(aggstatus[i * 2]) & 0xc)
continue;
idx = le16toh(aggstatus[2*i + 1]) & 0xff;
bit = idx - start;
shift = 0;
if (bit >= 64) {
shift = 0x100 - idx + start;
bit = 0;
start = idx;
} else if (bit <= -64)
bit = 0x100 - start + idx;
else if (bit < 0) {
shift = start - idx;
start = idx;
bit = 0;
}
bitmap = bitmap << shift;
bitmap |= 1ULL << bit;
}
tap = sc->qid2tap[qid];
tid = tap->txa_tid;
wn = (void *)tap->txa_ni;
wn->agg[tid].bitmap = bitmap;
wn->agg[tid].startidx = start;
wn->agg[tid].nframes = nframes;
res = NULL;
ssn = 0;
if (!IEEE80211_AMPDU_RUNNING(tap)) {
res = tap->txa_private;
ssn = tap->txa_start & 0xfff;
}
/* This is going nframes DWORDS into the descriptor? */
seqno = le32toh(*(status + nframes)) & 0xfff;
for (lastidx = (seqno & 0xff); ring->read != lastidx;) {
data = &ring->data[ring->read];
/* 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;
KASSERT(ni != NULL, ("no node"));
KASSERT(m != NULL, ("no mbuf"));
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: freeing m=%p\n", __func__, m);
ieee80211_tx_complete(ni, m, 1);
ring->queued--;
ring->read = (ring->read + 1) % IWN_TX_RING_COUNT;
}
if (ring->queued == 0 && res != NULL) {
iwn_nic_lock(sc);
ops->ampdu_tx_stop(sc, qid, tid, ssn);
iwn_nic_unlock(sc);
sc->qid2tap[qid] = NULL;
free(res, M_DEVBUF);
return;
}
sc->sc_tx_timer = 0;
if (ring->queued < IWN_TX_RING_LOMARK)
sc->qfullmsk &= ~(1 << ring->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;
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 & 0xf, 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, data);
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);
break;
case IWN_RX_COMPRESSED_BA:
/* A Compressed BlockAck has been received. */
iwn_rx_compressed_ba(sc, desc, data);
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, data);
break;
case IWN_BEACON_MISSED:
{
struct iwn_beacon_missed *miss =
(struct iwn_beacon_missed *)(desc + 1);
int misses;
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
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);
}
}
break;
}
case IWN_UC_READY:
{
struct iwn_ucode_info *uc =
(struct iwn_ucode_info *)(desc + 1);
/* The microcontroller is ready. */
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
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;
}
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.
*/
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
#ifdef IWN_DEBUG
uint32_t *status = (uint32_t *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_INTR | IWN_DEBUG_STATE,
"state changed to %x\n",
le32toh(*status));
#endif
break;
}
case IWN_START_SCAN:
{
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
#ifdef IWN_DEBUG
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));
#endif
break;
}
case IWN_STOP_SCAN:
{
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
#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;
IWN_UNLOCK(sc);
ieee80211_scan_next(vap);
IWN_LOCK(sc);
break;
}
case IWN5000_CALIBRATION_RESULT:
iwn5000_rx_calib_results(sc, desc, data);
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_intr(struct iwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
uint32_t tmp = IWN_READ(sc, IWN_GP_CNTRL);
IWN_LOCK_ASSERT(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_runtask(ic, &sc->sc_radioon_task);
else
ieee80211_runtask(ic, &sc->sc_radiooff_task);
}
/*
* 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) {
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) {
iwn_rftoggle_intr(sc);
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)
{
struct iwn_ops *ops = &sc->ops;
const struct ieee80211_txparam *tp;
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_desc *desc;
struct iwn_tx_data *data;
struct iwn_tx_cmd *cmd;
struct iwn_cmd_data *tx;
struct ieee80211_frame *wh;
struct ieee80211_key *k = NULL;
struct mbuf *m1;
uint32_t flags;
uint16_t qos;
u_int hdrlen;
bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER];
uint8_t tid, type;
int ac, i, totlen, error, pad, nsegs = 0, rate;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
IWN_LOCK_ASSERT(sc);
wh = mtod(m, struct ieee80211_frame *);
hdrlen = ieee80211_anyhdrsize(wh);
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;
}
ac = M_WME_GETAC(m);
if (m->m_flags & M_AMPDU_MPDU) {
uint16_t seqno;
struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[ac];
if (!IEEE80211_AMPDU_RUNNING(tap)) {
return EINVAL;
}
/*
* 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!
*/
ac = *(int *)tap->txa_private;
seqno = ni->ni_txseqs[tid];
*(uint16_t *)wh->i_seq =
htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
ring = &sc->txq[ac];
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);
}
ni->ni_txseqs[tid]++;
}
ring = &sc->txq[ac];
desc = &ring->desc[ring->cur];
data = &ring->data[ring->cur];
/* Choose a TX rate index. */
tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
if (type == IEEE80211_FC0_TYPE_MGT)
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 if (m->m_flags & M_EAPOL)
rate = tp->mgmtrate;
else {
/* XXX pass pktlen */
(void) ieee80211_ratectl_rate(ni, NULL, 0);
rate = ni->ni_txrate;
}
/* 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);
}
/* 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;
/* NB: No need to clear tx, all fields are reinitialized here. */
tx->scratch = 0; /* clear "scratch" area */
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;
}
}
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 (hdrlen & 3) {
/* First segment length must be a multiple of 4. */
flags |= IWN_TX_NEED_PADDING;
pad = 4 - (hdrlen & 3);
} else
pad = 0;
tx->len = htole16(totlen);
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);
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 */
}
/* Set physical address of "scratch area". */
tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr));
tx->hiaddr = IWN_HIADDR(data->scratch_paddr);
/* Copy 802.11 header in TX command. */
memcpy((uint8_t *)(tx + 1), wh, hdrlen);
/* Trim 802.11 header. */
m_adj(m, hdrlen);
tx->security = 0;
tx->flags = htole32(flags);
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) {
device_printf(sc->sc_dev,
"%s: can't map mbuf (error %d)\n", __func__, error);
return error;
}
}
data->m = m;
data->ni = ni;
DPRINTF(sc, IWN_DEBUG_XMIT,
"%s: qid %d idx %d len %d nsegs %d flags 0x%08x rate 0x%04x plcp 0x%08x\n",
__func__,
ring->qid,
ring->cur,
m->m_pkthdr.len,
nsegs,
flags,
rate,
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->data_dmat, 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 int
iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m,
struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
{
struct iwn_ops *ops = &sc->ops;
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;
struct iwn_tx_desc *desc;
struct iwn_tx_data *data;
struct mbuf *m1;
bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER];
uint32_t flags;
u_int hdrlen;
int ac, totlen, error, pad, nsegs = 0, i, rate;
uint8_t type;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
IWN_LOCK_ASSERT(sc);
wh = mtod(m, struct ieee80211_frame *);
hdrlen = ieee80211_anyhdrsize(wh);
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
ac = params->ibp_pri & 3;
ring = &sc->txq[ac];
desc = &ring->desc[ring->cur];
data = &ring->data[ring->cur];
/* Choose a TX rate. */
rate = params->ibp_rate0;
totlen = m->m_pkthdr.len;
/* 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;
/* NB: No need to clear tx, all fields are reinitialized here. */
tx->scratch = 0; /* clear "scratch" area */
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 (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 (hdrlen & 3) {
/* First segment length must be a multiple of 4. */
flags |= IWN_TX_NEED_PADDING;
pad = 4 - (hdrlen & 3);
} else
pad = 0;
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);
}
tx->len = htole16(totlen);
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);
/* Group or management frame. */
tx->linkq = 0;
/* Set physical address of "scratch area". */
tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr));
tx->hiaddr = IWN_HIADDR(data->scratch_paddr);
/* Copy 802.11 header in TX command. */
memcpy((uint8_t *)(tx + 1), wh, hdrlen);
/* Trim 802.11 header. */
m_adj(m, hdrlen);
tx->security = 0;
tx->flags = htole32(flags);
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) {
device_printf(sc->sc_dev,
"%s: can't map mbuf (error %d)\n", __func__, error);
return error;
}
}
data->m = m;
data->ni = ni;
DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
__func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs);
/* 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->data_dmat, 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_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_runtask(ic, &sc->sc_reinit_task);
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 = TAILQ_FIRST(&ic->ic_vaps);
int startall = 0, stop = 0;
IWN_LOCK(sc);
if (ic->ic_nrunning > 0) {
if (!(sc->sc_flags & IWN_FLAG_RUNNING)) {
iwn_init_locked(sc);
if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)
startall = 1;
else
stop = 1;
}
} else if (sc->sc_flags & IWN_FLAG_RUNNING)
iwn_stop_locked(sc);
IWN_UNLOCK(sc);
if (startall)
ieee80211_start_all(ic);
else if (vap != NULL && stop)
ieee80211_stop(vap);
}
/*
* 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->data_dmat, 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 higest 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;
int aci;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
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 =
&ic->ic_wme.wme_chanParams.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_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)
{
struct ieee80211com *ic = &sc->sc_ic;
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, ic->ic_bsschan, 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, struct ieee80211_channel *ch,
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, 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;
DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n",
chan);
memset(&cmd, 0, sizeof cmd);
cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1;
cmd.chan = chan;
if (IEEE80211_IS_CHAN_5GHZ(ch)) {
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, struct ieee80211_channel *ch,
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 = (max / dtim) * 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_config(struct iwn_softc *sc)
{
struct iwn_ops *ops = &sc->ops;
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);
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
sc->rxon->mode = IWN_MODE_STA;
sc->rxon->filter = htole32(IWN_FILTER_MULTICAST);
break;
case IEEE80211_M_MONITOR:
sc->rxon->mode = IWN_MODE_MONITOR;
sc->rxon->filter = htole32(IWN_FILTER_MULTICAST |
IWN_FILTER_CTL | IWN_FILTER_PROMISC);
break;
default:
/* Should not get there. */
break;
}
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 (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, 0);
if (error != 0) {
device_printf(sc->sc_dev, "%s: RXON command failed\n",
__func__);
return error;
}
if ((error = iwn_add_broadcast_node(sc, 0)) != 0) {
device_printf(sc->sc_dev, "%s: could not add broadcast node\n",
__func__);
return error;
}
/* Configuration has changed, set TX power accordingly. */
if ((error = ops->set_txpower(sc, ic->ic_curchan, 0)) != 0) {
device_printf(sc->sc_dev, "%s: could not set TX power\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);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return error;
}
static int
iwn_auth(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;
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 (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, 1);
if (error != 0) {
device_printf(sc->sc_dev, "%s: RXON command failed, error %d\n",
__func__, error);
return error;
}
/* Configuration has changed, set TX power accordingly. */
if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) {
device_printf(sc->sc_dev,
"%s: could not set TX power, error %d\n", __func__, error);
return error;
}
/*
* Reconfiguring RXON clears the firmware nodes table so we must
* add the broadcast node again.
*/
if ((error = iwn_add_broadcast_node(sc, 1)) != 0) {
device_printf(sc->sc_dev,
"%s: could not add broadcast node, error %d\n", __func__,
error);
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 (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, 1);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not update configuration, error %d\n", __func__,
error);
return error;
}
/* Configuration has changed, set TX power accordingly. */
if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) {
device_printf(sc->sc_dev,
"%s: could not set TX power, error %d\n", __func__, error);
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)
{
#define MS(_v, _f) (((_v) & _f) >> _f##_S)
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 = MS(le16toh(baparamset), IEEE80211_BAPS_TID);
ssn = MS(le16toh(baseqctl), IEEE80211_BASEQ_START);
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);
#undef MS
}
/*
* 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__);
/* 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);
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__);
/* 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_radio_on(void *arg0, int pending)
{
struct iwn_softc *sc = arg0;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
if (vap != NULL) {
iwn_init(sc);
ieee80211_init(vap);
}
}
static void
iwn_radio_off(void *arg0, int pending)
{
struct iwn_softc *sc = arg0;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
iwn_stop(sc);
if (vap != NULL)
ieee80211_stop(vap);
/* 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);
}
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);
iwn_init_locked(sc);
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__);
}
IWN_UNLOCK(sc);
#endif
}
static void
iwn_init_locked(struct iwn_softc *sc)
{
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
IWN_LOCK_ASSERT(sc);
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)) {
device_printf(sc->sc_dev,
"radio is disabled by hardware switch\n");
/* Enable interrupts to get RF toggle notifications. */
IWN_WRITE(sc, IWN_INT, 0xffffffff);
IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
return;
}
/* 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);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
return;
fail:
sc->sc_flags &= ~IWN_FLAG_RUNNING;
iwn_stop_locked(sc);
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__);
}
static void
iwn_init(struct iwn_softc *sc)
{
IWN_LOCK(sc);
iwn_init_locked(sc);
IWN_UNLOCK(sc);
if (sc->sc_flags & IWN_FLAG_RUNNING)
ieee80211_start_all(&sc->sc_ic);
}
static void
iwn_stop_locked(struct iwn_softc *sc)
{
IWN_LOCK_ASSERT(sc);
sc->sc_is_scanning = 0;
sc->sc_tx_timer = 0;
callout_stop(&sc->watchdog_to);
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)
{
const struct ieee80211_channel *c = ic->ic_curchan;
struct iwn_softc *sc = ic->ic_softc;
int error;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
IWN_LOCK(sc);
sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
/*
* 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 */
}
static void
iwn_hw_reset(void *arg0, int pending)
{
struct iwn_softc *sc = arg0;
struct ieee80211com *ic = &sc->sc_ic;
DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
iwn_stop(sc);
iwn_init(sc);
ieee80211_notify_radio(ic, 1);
}
#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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