2681 lines
68 KiB
C
2681 lines
68 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2004-2006
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* Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
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* Copyright (c) 2006 Sam Leffler, Errno Consulting
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* Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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/*-
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* Intel(R) PRO/Wireless 2100 MiniPCI driver
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* http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
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*/
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <sys/taskqueue.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/linker.h>
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#include <sys/firmware.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#include <netinet/if_ether.h>
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#include <dev/ipw/if_ipwreg.h>
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#include <dev/ipw/if_ipwvar.h>
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#define IPW_DEBUG
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#ifdef IPW_DEBUG
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#define DPRINTF(x) do { if (ipw_debug > 0) printf x; } while (0)
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#define DPRINTFN(n, x) do { if (ipw_debug >= (n)) printf x; } while (0)
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int ipw_debug = 0;
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SYSCTL_INT(_debug, OID_AUTO, ipw, CTLFLAG_RW, &ipw_debug, 0, "ipw debug level");
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n, x)
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#endif
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MODULE_DEPEND(ipw, pci, 1, 1, 1);
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MODULE_DEPEND(ipw, wlan, 1, 1, 1);
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MODULE_DEPEND(ipw, firmware, 1, 1, 1);
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struct ipw_ident {
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uint16_t vendor;
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uint16_t device;
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const char *name;
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};
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static const struct ipw_ident ipw_ident_table[] = {
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{ 0x8086, 0x1043, "Intel(R) PRO/Wireless 2100 MiniPCI" },
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{ 0, 0, NULL }
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};
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static struct ieee80211vap *ipw_vap_create(struct ieee80211com *,
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const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
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const uint8_t [IEEE80211_ADDR_LEN],
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const uint8_t [IEEE80211_ADDR_LEN]);
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static void ipw_vap_delete(struct ieee80211vap *);
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static int ipw_dma_alloc(struct ipw_softc *);
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static void ipw_release(struct ipw_softc *);
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static void ipw_media_status(if_t, struct ifmediareq *);
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static int ipw_newstate(struct ieee80211vap *, enum ieee80211_state, int);
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static uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t);
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static uint16_t ipw_read_chanmask(struct ipw_softc *);
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static void ipw_rx_cmd_intr(struct ipw_softc *, struct ipw_soft_buf *);
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static void ipw_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *);
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static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *,
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struct ipw_soft_bd *, struct ipw_soft_buf *);
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static void ipw_rx_intr(struct ipw_softc *);
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static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *);
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static void ipw_tx_intr(struct ipw_softc *);
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static void ipw_intr(void *);
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static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int);
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static const char * ipw_cmdname(int);
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static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t);
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static int ipw_tx_start(struct ipw_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *,
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const struct ieee80211_bpf_params *);
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static int ipw_transmit(struct ieee80211com *, struct mbuf *);
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static void ipw_start(struct ipw_softc *);
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static void ipw_watchdog(void *);
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static void ipw_parent(struct ieee80211com *);
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static void ipw_stop_master(struct ipw_softc *);
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static int ipw_enable(struct ipw_softc *);
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static int ipw_disable(struct ipw_softc *);
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static int ipw_reset(struct ipw_softc *);
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static int ipw_load_ucode(struct ipw_softc *, const char *, int);
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static int ipw_load_firmware(struct ipw_softc *, const char *, int);
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static int ipw_config(struct ipw_softc *);
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static void ipw_assoc(struct ieee80211com *, struct ieee80211vap *);
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static void ipw_disassoc(struct ieee80211com *, struct ieee80211vap *);
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static void ipw_init_task(void *, int);
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static void ipw_init(void *);
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static void ipw_init_locked(struct ipw_softc *);
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static void ipw_stop(void *);
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static void ipw_stop_locked(struct ipw_softc *);
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static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS);
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static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS);
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static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t);
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static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t);
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#if 0
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static int ipw_read_table2(struct ipw_softc *, uint32_t, void *,
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uint32_t *);
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static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *,
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bus_size_t);
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#endif
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static void ipw_write_mem_1(struct ipw_softc *, bus_size_t,
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const uint8_t *, bus_size_t);
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static int ipw_scan(struct ipw_softc *);
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static void ipw_scan_start(struct ieee80211com *);
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static void ipw_scan_end(struct ieee80211com *);
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static void ipw_getradiocaps(struct ieee80211com *, int, int *,
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struct ieee80211_channel[]);
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static void ipw_set_channel(struct ieee80211com *);
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static void ipw_scan_curchan(struct ieee80211_scan_state *,
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unsigned long maxdwell);
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static void ipw_scan_mindwell(struct ieee80211_scan_state *);
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static int ipw_probe(device_t);
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static int ipw_attach(device_t);
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static int ipw_detach(device_t);
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static int ipw_shutdown(device_t);
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static int ipw_suspend(device_t);
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static int ipw_resume(device_t);
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static device_method_t ipw_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ipw_probe),
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DEVMETHOD(device_attach, ipw_attach),
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DEVMETHOD(device_detach, ipw_detach),
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DEVMETHOD(device_shutdown, ipw_shutdown),
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DEVMETHOD(device_suspend, ipw_suspend),
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DEVMETHOD(device_resume, ipw_resume),
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DEVMETHOD_END
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};
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static driver_t ipw_driver = {
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"ipw",
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ipw_methods,
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sizeof (struct ipw_softc)
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};
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DRIVER_MODULE(ipw, pci, ipw_driver, NULL, NULL);
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MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, ipw, ipw_ident_table,
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nitems(ipw_ident_table) - 1);
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MODULE_VERSION(ipw, 1);
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static int
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ipw_probe(device_t dev)
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{
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const struct ipw_ident *ident;
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for (ident = ipw_ident_table; ident->name != NULL; ident++) {
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if (pci_get_vendor(dev) == ident->vendor &&
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pci_get_device(dev) == ident->device) {
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device_set_desc(dev, ident->name);
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return (BUS_PROBE_DEFAULT);
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}
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}
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return ENXIO;
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}
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/* Base Address Register */
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static int
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ipw_attach(device_t dev)
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{
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struct ipw_softc *sc = device_get_softc(dev);
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struct ieee80211com *ic = &sc->sc_ic;
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uint16_t val;
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int error, i;
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sc->sc_dev = dev;
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mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
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MTX_DEF | MTX_RECURSE);
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mbufq_init(&sc->sc_snd, ifqmaxlen);
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TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc);
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callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
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pci_write_config(dev, 0x41, 0, 1);
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/* enable bus-mastering */
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pci_enable_busmaster(dev);
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i = PCIR_BAR(0);
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sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE);
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if (sc->mem == NULL) {
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device_printf(dev, "could not allocate memory resource\n");
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goto fail;
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}
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sc->sc_st = rman_get_bustag(sc->mem);
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sc->sc_sh = rman_get_bushandle(sc->mem);
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i = 0;
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sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
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RF_ACTIVE | RF_SHAREABLE);
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if (sc->irq == NULL) {
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device_printf(dev, "could not allocate interrupt resource\n");
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goto fail1;
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}
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if (ipw_reset(sc) != 0) {
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device_printf(dev, "could not reset adapter\n");
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goto fail2;
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}
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if (ipw_dma_alloc(sc) != 0) {
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device_printf(dev, "could not allocate DMA resources\n");
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goto fail2;
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}
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ic->ic_softc = sc;
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ic->ic_name = device_get_nameunit(dev);
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ic->ic_opmode = IEEE80211_M_STA;
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ic->ic_phytype = IEEE80211_T_DS;
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/* set device capabilities */
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ic->ic_caps =
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IEEE80211_C_STA /* station mode supported */
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| IEEE80211_C_IBSS /* IBSS mode supported */
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| IEEE80211_C_MONITOR /* monitor mode supported */
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| IEEE80211_C_PMGT /* power save supported */
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| IEEE80211_C_SHPREAMBLE /* short preamble supported */
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| IEEE80211_C_WPA /* 802.11i supported */
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;
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/* read MAC address from EEPROM */
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val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0);
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ic->ic_macaddr[0] = val >> 8;
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ic->ic_macaddr[1] = val & 0xff;
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val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1);
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ic->ic_macaddr[2] = val >> 8;
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ic->ic_macaddr[3] = val & 0xff;
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val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2);
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ic->ic_macaddr[4] = val >> 8;
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ic->ic_macaddr[5] = val & 0xff;
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sc->chanmask = ipw_read_chanmask(sc);
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ipw_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
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ic->ic_channels);
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/* check support for radio transmitter switch in EEPROM */
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if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8))
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sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH;
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ieee80211_ifattach(ic);
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ic->ic_scan_start = ipw_scan_start;
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ic->ic_scan_end = ipw_scan_end;
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ic->ic_getradiocaps = ipw_getradiocaps;
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ic->ic_set_channel = ipw_set_channel;
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ic->ic_scan_curchan = ipw_scan_curchan;
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ic->ic_scan_mindwell = ipw_scan_mindwell;
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ic->ic_raw_xmit = ipw_raw_xmit;
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ic->ic_vap_create = ipw_vap_create;
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ic->ic_vap_delete = ipw_vap_delete;
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ic->ic_transmit = ipw_transmit;
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ic->ic_parent = ipw_parent;
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ieee80211_radiotap_attach(ic,
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&sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
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IPW_TX_RADIOTAP_PRESENT,
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&sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
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IPW_RX_RADIOTAP_PRESENT);
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/*
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* Add a few sysctl knobs.
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*/
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SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
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SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
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CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, sc, 0,
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ipw_sysctl_radio, "I",
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"radio transmitter switch state (0=off, 1=on)");
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SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
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SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
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CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_NEEDGIANT, sc, 0,
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ipw_sysctl_stats, "S", "statistics");
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/*
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* Hook our interrupt after all initialization is complete.
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*/
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error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
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NULL, ipw_intr, sc, &sc->sc_ih);
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if (error != 0) {
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device_printf(dev, "could not set up interrupt\n");
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goto fail3;
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}
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if (bootverbose)
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ieee80211_announce(ic);
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return 0;
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fail3:
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ipw_release(sc);
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fail2:
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bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
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fail1:
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bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
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sc->mem);
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fail:
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mtx_destroy(&sc->sc_mtx);
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return ENXIO;
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}
|
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|
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static int
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ipw_detach(device_t dev)
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{
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struct ipw_softc *sc = device_get_softc(dev);
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struct ieee80211com *ic = &sc->sc_ic;
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bus_teardown_intr(dev, sc->irq, sc->sc_ih);
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ieee80211_draintask(ic, &sc->sc_init_task);
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ipw_stop(sc);
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ieee80211_ifdetach(ic);
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callout_drain(&sc->sc_wdtimer);
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mbufq_drain(&sc->sc_snd);
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|
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ipw_release(sc);
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bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
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bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
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sc->mem);
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|
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if (sc->sc_firmware != NULL) {
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firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
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sc->sc_firmware = NULL;
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}
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|
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mtx_destroy(&sc->sc_mtx);
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|
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return 0;
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}
|
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|
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static struct ieee80211vap *
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ipw_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
|
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enum ieee80211_opmode opmode, int flags,
|
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const uint8_t bssid[IEEE80211_ADDR_LEN],
|
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const uint8_t mac[IEEE80211_ADDR_LEN])
|
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{
|
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struct ipw_softc *sc = ic->ic_softc;
|
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struct ipw_vap *ivp;
|
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struct ieee80211vap *vap;
|
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const struct firmware *fp;
|
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const struct ipw_firmware_hdr *hdr;
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const char *imagename;
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|
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if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
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return NULL;
|
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|
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switch (opmode) {
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case IEEE80211_M_STA:
|
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imagename = "ipw_bss";
|
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break;
|
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case IEEE80211_M_IBSS:
|
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imagename = "ipw_ibss";
|
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break;
|
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case IEEE80211_M_MONITOR:
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imagename = "ipw_monitor";
|
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break;
|
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default:
|
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return NULL;
|
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}
|
|
|
|
/*
|
|
* Load firmware image using the firmware(9) subsystem. Doing
|
|
* this unlocked is ok since we're single-threaded by the
|
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* 802.11 layer.
|
|
*/
|
|
if (sc->sc_firmware == NULL ||
|
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strcmp(sc->sc_firmware->name, imagename) != 0) {
|
|
if (sc->sc_firmware != NULL)
|
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firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
|
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sc->sc_firmware = firmware_get(imagename);
|
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}
|
|
if (sc->sc_firmware == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not load firmware image '%s'\n", imagename);
|
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return NULL;
|
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}
|
|
fp = sc->sc_firmware;
|
|
if (fp->datasize < sizeof *hdr) {
|
|
device_printf(sc->sc_dev,
|
|
"firmware image too short %zu\n", fp->datasize);
|
|
firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
|
|
sc->sc_firmware = NULL;
|
|
return NULL;
|
|
}
|
|
hdr = (const struct ipw_firmware_hdr *)fp->data;
|
|
if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
|
|
le32toh(hdr->ucodesz)) {
|
|
device_printf(sc->sc_dev,
|
|
"firmware image too short %zu\n", fp->datasize);
|
|
firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
|
|
sc->sc_firmware = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
ivp = malloc(sizeof(struct ipw_vap), M_80211_VAP, M_WAITOK | M_ZERO);
|
|
vap = &ivp->vap;
|
|
|
|
ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
|
|
/* override with driver methods */
|
|
ivp->newstate = vap->iv_newstate;
|
|
vap->iv_newstate = ipw_newstate;
|
|
|
|
/* complete setup */
|
|
ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status,
|
|
mac);
|
|
ic->ic_opmode = opmode;
|
|
return vap;
|
|
}
|
|
|
|
static void
|
|
ipw_vap_delete(struct ieee80211vap *vap)
|
|
{
|
|
struct ipw_vap *ivp = IPW_VAP(vap);
|
|
|
|
ieee80211_vap_detach(vap);
|
|
free(ivp, M_80211_VAP);
|
|
}
|
|
|
|
static int
|
|
ipw_dma_alloc(struct ipw_softc *sc)
|
|
{
|
|
struct ipw_soft_bd *sbd;
|
|
struct ipw_soft_hdr *shdr;
|
|
struct ipw_soft_buf *sbuf;
|
|
bus_addr_t physaddr;
|
|
int error, i;
|
|
|
|
/*
|
|
* Allocate parent DMA tag for subsequent allocations.
|
|
*/
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED,
|
|
BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->parent_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create parent DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate and map tx ring.
|
|
*/
|
|
error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
|
|
NULL, &sc->tbd_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate tx ring DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
|
|
IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate and map rx ring.
|
|
*/
|
|
error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
|
|
NULL, &sc->rbd_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate rx ring DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
|
|
IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate and map status ring.
|
|
*/
|
|
error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
|
|
NULL, NULL, &sc->status_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not create status ring DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate status ring DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->status_dmat, sc->status_map,
|
|
sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
|
|
0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not map status ring DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate command DMA map.
|
|
*/
|
|
error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
|
|
sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create command DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not create command DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate headers DMA maps.
|
|
*/
|
|
error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
|
|
sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create header DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
SLIST_INIT(&sc->free_shdr);
|
|
for (i = 0; i < IPW_NDATA; i++) {
|
|
shdr = &sc->shdr_list[i];
|
|
error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not create header DMA map\n");
|
|
goto fail;
|
|
}
|
|
SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
|
|
}
|
|
|
|
/*
|
|
* Allocate tx buffers DMA maps.
|
|
*/
|
|
error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
|
|
NULL, NULL, &sc->txbuf_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create tx DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
SLIST_INIT(&sc->free_sbuf);
|
|
for (i = 0; i < IPW_NDATA; i++) {
|
|
sbuf = &sc->tx_sbuf_list[i];
|
|
error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not create tx DMA map\n");
|
|
goto fail;
|
|
}
|
|
SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
|
|
}
|
|
|
|
/*
|
|
* Initialize tx ring.
|
|
*/
|
|
for (i = 0; i < IPW_NTBD; i++) {
|
|
sbd = &sc->stbd_list[i];
|
|
sbd->bd = &sc->tbd_list[i];
|
|
sbd->type = IPW_SBD_TYPE_NOASSOC;
|
|
}
|
|
|
|
/*
|
|
* Pre-allocate rx buffers and DMA maps.
|
|
*/
|
|
error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
|
|
NULL, &sc->rxbuf_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create rx DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < IPW_NRBD; i++) {
|
|
sbd = &sc->srbd_list[i];
|
|
sbuf = &sc->rx_sbuf_list[i];
|
|
sbd->bd = &sc->rbd_list[i];
|
|
|
|
sbuf->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
|
|
if (sbuf->m == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate rx mbuf\n");
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not create rx DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
|
|
mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
|
|
&physaddr, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not map rx DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
sbd->type = IPW_SBD_TYPE_DATA;
|
|
sbd->priv = sbuf;
|
|
sbd->bd->physaddr = htole32(physaddr);
|
|
sbd->bd->len = htole32(MCLBYTES);
|
|
}
|
|
|
|
bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
return 0;
|
|
|
|
fail: ipw_release(sc);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ipw_release(struct ipw_softc *sc)
|
|
{
|
|
struct ipw_soft_buf *sbuf;
|
|
int i;
|
|
|
|
if (sc->parent_dmat != NULL) {
|
|
bus_dma_tag_destroy(sc->parent_dmat);
|
|
}
|
|
|
|
if (sc->tbd_dmat != NULL) {
|
|
bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
|
|
bus_dmamem_free(sc->tbd_dmat, sc->tbd_list, sc->tbd_map);
|
|
bus_dma_tag_destroy(sc->tbd_dmat);
|
|
}
|
|
|
|
if (sc->rbd_dmat != NULL) {
|
|
if (sc->rbd_list != NULL) {
|
|
bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
|
|
bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
|
|
sc->rbd_map);
|
|
}
|
|
bus_dma_tag_destroy(sc->rbd_dmat);
|
|
}
|
|
|
|
if (sc->status_dmat != NULL) {
|
|
if (sc->status_list != NULL) {
|
|
bus_dmamap_unload(sc->status_dmat, sc->status_map);
|
|
bus_dmamem_free(sc->status_dmat, sc->status_list,
|
|
sc->status_map);
|
|
}
|
|
bus_dma_tag_destroy(sc->status_dmat);
|
|
}
|
|
|
|
for (i = 0; i < IPW_NTBD; i++)
|
|
ipw_release_sbd(sc, &sc->stbd_list[i]);
|
|
|
|
if (sc->cmd_dmat != NULL) {
|
|
bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
|
|
bus_dma_tag_destroy(sc->cmd_dmat);
|
|
}
|
|
|
|
if (sc->hdr_dmat != NULL) {
|
|
for (i = 0; i < IPW_NDATA; i++)
|
|
bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
|
|
bus_dma_tag_destroy(sc->hdr_dmat);
|
|
}
|
|
|
|
if (sc->txbuf_dmat != NULL) {
|
|
for (i = 0; i < IPW_NDATA; i++) {
|
|
bus_dmamap_destroy(sc->txbuf_dmat,
|
|
sc->tx_sbuf_list[i].map);
|
|
}
|
|
bus_dma_tag_destroy(sc->txbuf_dmat);
|
|
}
|
|
|
|
if (sc->rxbuf_dmat != NULL) {
|
|
for (i = 0; i < IPW_NRBD; i++) {
|
|
sbuf = &sc->rx_sbuf_list[i];
|
|
if (sbuf->m != NULL) {
|
|
bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
|
|
m_freem(sbuf->m);
|
|
}
|
|
bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
|
|
}
|
|
bus_dma_tag_destroy(sc->rxbuf_dmat);
|
|
}
|
|
}
|
|
|
|
static int
|
|
ipw_shutdown(device_t dev)
|
|
{
|
|
struct ipw_softc *sc = device_get_softc(dev);
|
|
|
|
ipw_stop(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_suspend(device_t dev)
|
|
{
|
|
struct ipw_softc *sc = device_get_softc(dev);
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
ieee80211_suspend_all(ic);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_resume(device_t dev)
|
|
{
|
|
struct ipw_softc *sc = device_get_softc(dev);
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
pci_write_config(dev, 0x41, 0, 1);
|
|
|
|
ieee80211_resume_all(ic);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_cvtrate(int ipwrate)
|
|
{
|
|
switch (ipwrate) {
|
|
case IPW_RATE_DS1: return 2;
|
|
case IPW_RATE_DS2: return 4;
|
|
case IPW_RATE_DS5: return 11;
|
|
case IPW_RATE_DS11: return 22;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The firmware automatically adapts the transmit speed. We report its current
|
|
* value here.
|
|
*/
|
|
static void
|
|
ipw_media_status(if_t ifp, struct ifmediareq *imr)
|
|
{
|
|
struct ieee80211vap *vap = if_getsoftc(ifp);
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
|
|
/* read current transmission rate from adapter */
|
|
vap->iv_bss->ni_txrate = ipw_cvtrate(
|
|
ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
|
|
ieee80211_media_status(ifp, imr);
|
|
}
|
|
|
|
static int
|
|
ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct ipw_vap *ivp = IPW_VAP(vap);
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
enum ieee80211_state ostate;
|
|
|
|
DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
|
|
ieee80211_state_name[vap->iv_state],
|
|
ieee80211_state_name[nstate], sc->flags));
|
|
|
|
ostate = vap->iv_state;
|
|
IEEE80211_UNLOCK(ic);
|
|
|
|
switch (nstate) {
|
|
case IEEE80211_S_RUN:
|
|
if (ic->ic_opmode == IEEE80211_M_IBSS) {
|
|
/*
|
|
* XXX when joining an ibss network we are called
|
|
* with a SCAN -> RUN transition on scan complete.
|
|
* Use that to call ipw_assoc. On completing the
|
|
* join we are then called again with an AUTH -> RUN
|
|
* transition and we want to do nothing. This is
|
|
* all totally bogus and needs to be redone.
|
|
*/
|
|
if (ostate == IEEE80211_S_SCAN)
|
|
ipw_assoc(ic, vap);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_S_INIT:
|
|
if (sc->flags & IPW_FLAG_ASSOCIATED)
|
|
ipw_disassoc(ic, vap);
|
|
break;
|
|
|
|
case IEEE80211_S_AUTH:
|
|
/*
|
|
* Move to ASSOC state after the ipw_assoc() call. Firmware
|
|
* takes care of authentication, after the call we'll receive
|
|
* only an assoc response which would otherwise be discared
|
|
* if we are still in AUTH state.
|
|
*/
|
|
nstate = IEEE80211_S_ASSOC;
|
|
ipw_assoc(ic, vap);
|
|
break;
|
|
|
|
case IEEE80211_S_ASSOC:
|
|
/*
|
|
* If we are not transitioning from AUTH then resend the
|
|
* association request.
|
|
*/
|
|
if (ostate != IEEE80211_S_AUTH)
|
|
ipw_assoc(ic, vap);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
IEEE80211_LOCK(ic);
|
|
return ivp->newstate(vap, nstate, arg);
|
|
}
|
|
|
|
/*
|
|
* Read 16 bits at address 'addr' from the serial EEPROM.
|
|
*/
|
|
static uint16_t
|
|
ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
|
|
{
|
|
uint32_t tmp;
|
|
uint16_t val;
|
|
int n;
|
|
|
|
/* clock C once before the first command */
|
|
IPW_EEPROM_CTL(sc, 0);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
|
|
|
|
/* write start bit (1) */
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
|
|
|
|
/* write READ opcode (10) */
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
|
|
|
|
/* write address A7-A0 */
|
|
for (n = 7; n >= 0; n--) {
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
|
|
(((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
|
|
(((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
|
|
}
|
|
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
|
|
|
|
/* read data Q15-Q0 */
|
|
val = 0;
|
|
for (n = 15; n >= 0; n--) {
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
|
|
tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
|
|
val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
|
|
}
|
|
|
|
IPW_EEPROM_CTL(sc, 0);
|
|
|
|
/* clear Chip Select and clock C */
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
|
|
IPW_EEPROM_CTL(sc, 0);
|
|
IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
|
|
|
|
return le16toh(val);
|
|
}
|
|
|
|
static uint16_t
|
|
ipw_read_chanmask(struct ipw_softc *sc)
|
|
{
|
|
uint16_t val;
|
|
|
|
/* set supported .11b channels (read from EEPROM) */
|
|
if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0)
|
|
val = 0x7ff; /* default to channels 1-11 */
|
|
val <<= 1;
|
|
|
|
return (val);
|
|
}
|
|
|
|
static void
|
|
ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
|
|
{
|
|
struct ipw_cmd *cmd;
|
|
|
|
bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
|
|
|
|
cmd = mtod(sbuf->m, struct ipw_cmd *);
|
|
|
|
DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
|
|
ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
|
|
le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
|
|
le32toh(cmd->status)));
|
|
|
|
sc->flags &= ~IPW_FLAG_BUSY;
|
|
wakeup(sc);
|
|
}
|
|
|
|
static void
|
|
ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
|
|
{
|
|
#define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
uint32_t state;
|
|
|
|
bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
|
|
|
|
state = le32toh(*mtod(sbuf->m, uint32_t *));
|
|
|
|
switch (state) {
|
|
case IPW_STATE_ASSOCIATED:
|
|
DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
|
|
IEEESTATE(vap), sc->flags));
|
|
/* XXX suppress state change in case the fw auto-associates */
|
|
if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
|
|
DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
|
|
IEEESTATE(vap), sc->flags));
|
|
break;
|
|
}
|
|
sc->flags &= ~IPW_FLAG_ASSOCIATING;
|
|
sc->flags |= IPW_FLAG_ASSOCIATED;
|
|
break;
|
|
|
|
case IPW_STATE_SCANNING:
|
|
DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
|
|
IEEESTATE(vap), sc->flags));
|
|
/*
|
|
* NB: Check driver state for association on assoc
|
|
* loss as the firmware will immediately start to
|
|
* scan and we would treat it as a beacon miss if
|
|
* we checked the 802.11 layer state.
|
|
*/
|
|
if (sc->flags & IPW_FLAG_ASSOCIATED) {
|
|
IPW_UNLOCK(sc);
|
|
/* XXX probably need to issue disassoc to fw */
|
|
ieee80211_beacon_miss(ic);
|
|
IPW_LOCK(sc);
|
|
}
|
|
break;
|
|
|
|
case IPW_STATE_SCAN_COMPLETE:
|
|
/*
|
|
* XXX For some reason scan requests generate scan
|
|
* started + scan done events before any traffic is
|
|
* received (e.g. probe response frames). We work
|
|
* around this by marking the HACK flag and skipping
|
|
* the first scan complete event.
|
|
*/
|
|
DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
|
|
IEEESTATE(vap), sc->flags));
|
|
if (sc->flags & IPW_FLAG_HACK) {
|
|
sc->flags &= ~IPW_FLAG_HACK;
|
|
break;
|
|
}
|
|
if (sc->flags & IPW_FLAG_SCANNING) {
|
|
IPW_UNLOCK(sc);
|
|
ieee80211_scan_done(vap);
|
|
IPW_LOCK(sc);
|
|
sc->flags &= ~IPW_FLAG_SCANNING;
|
|
sc->sc_scan_timer = 0;
|
|
}
|
|
break;
|
|
|
|
case IPW_STATE_ASSOCIATION_LOST:
|
|
DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
|
|
IEEESTATE(vap), sc->flags));
|
|
sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
|
|
if (vap->iv_state == IEEE80211_S_RUN) {
|
|
IPW_UNLOCK(sc);
|
|
ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
|
|
IPW_LOCK(sc);
|
|
}
|
|
break;
|
|
|
|
case IPW_STATE_DISABLED:
|
|
/* XXX? is this right? */
|
|
sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
|
|
IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
|
|
DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
|
|
IEEESTATE(vap), sc->flags));
|
|
break;
|
|
|
|
case IPW_STATE_RADIO_DISABLED:
|
|
device_printf(sc->sc_dev, "radio turned off\n");
|
|
ieee80211_notify_radio(ic, 0);
|
|
ipw_stop_locked(sc);
|
|
/* XXX start polling thread to detect radio on */
|
|
break;
|
|
|
|
default:
|
|
DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
|
|
__func__, state, IEEESTATE(vap), sc->flags));
|
|
break;
|
|
}
|
|
#undef IEEESTATE
|
|
}
|
|
|
|
/*
|
|
* Set driver state for current channel.
|
|
*/
|
|
static void
|
|
ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
ic->ic_curchan = chan;
|
|
ieee80211_radiotap_chan_change(ic);
|
|
}
|
|
|
|
/*
|
|
* XXX: Hack to set the current channel to the value advertised in beacons or
|
|
* probe responses. Only used during AP detection.
|
|
*/
|
|
static void
|
|
ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ieee80211_channel *c;
|
|
struct ieee80211_frame *wh;
|
|
uint8_t subtype;
|
|
uint8_t *frm, *efrm;
|
|
|
|
wh = mtod(m, struct ieee80211_frame *);
|
|
|
|
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
|
|
return;
|
|
|
|
subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
|
|
|
|
if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
|
|
subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
|
|
return;
|
|
|
|
/* XXX use ieee80211_parse_beacon */
|
|
frm = (uint8_t *)(wh + 1);
|
|
efrm = mtod(m, uint8_t *) + m->m_len;
|
|
|
|
frm += 12; /* skip tstamp, bintval and capinfo fields */
|
|
while (frm < efrm) {
|
|
if (*frm == IEEE80211_ELEMID_DSPARMS)
|
|
#if IEEE80211_CHAN_MAX < 255
|
|
if (frm[2] <= IEEE80211_CHAN_MAX)
|
|
#endif
|
|
{
|
|
DPRINTF(("Fixing channel to %d\n", frm[2]));
|
|
c = ieee80211_find_channel(ic,
|
|
ieee80211_ieee2mhz(frm[2], 0),
|
|
IEEE80211_CHAN_B);
|
|
if (c == NULL)
|
|
c = &ic->ic_channels[0];
|
|
ipw_setcurchan(sc, c);
|
|
}
|
|
|
|
frm += frm[1] + 2;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
|
|
struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct mbuf *mnew, *m;
|
|
struct ieee80211_node *ni;
|
|
bus_addr_t physaddr;
|
|
int error;
|
|
int8_t rssi, nf;
|
|
|
|
DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
|
|
status->rssi));
|
|
|
|
if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
|
|
le32toh(status->len) > MCLBYTES)
|
|
return;
|
|
|
|
/*
|
|
* Try to allocate a new mbuf for this ring element and load it before
|
|
* processing the current mbuf. If the ring element cannot be loaded,
|
|
* drop the received packet and reuse the old mbuf. In the unlikely
|
|
* case that the old mbuf can't be reloaded either, explicitly panic.
|
|
*/
|
|
mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
|
|
if (mnew == NULL) {
|
|
counter_u64_add(ic->ic_ierrors, 1);
|
|
return;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
|
|
|
|
error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
|
|
MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
|
|
if (error != 0) {
|
|
m_freem(mnew);
|
|
|
|
/* try to reload the old mbuf */
|
|
error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
|
|
mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
|
|
&physaddr, 0);
|
|
if (error != 0) {
|
|
/* very unlikely that it will fail... */
|
|
panic("%s: could not load old rx mbuf",
|
|
device_get_name(sc->sc_dev));
|
|
}
|
|
counter_u64_add(ic->ic_ierrors, 1);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* New mbuf successfully loaded, update Rx ring and continue
|
|
* processing.
|
|
*/
|
|
m = sbuf->m;
|
|
sbuf->m = mnew;
|
|
sbd->bd->physaddr = htole32(physaddr);
|
|
m->m_pkthdr.len = m->m_len = le32toh(status->len);
|
|
|
|
rssi = status->rssi + IPW_RSSI_TO_DBM;
|
|
nf = -95;
|
|
if (ieee80211_radiotap_active(ic)) {
|
|
struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
|
|
|
|
tap->wr_flags = 0;
|
|
tap->wr_antsignal = rssi;
|
|
tap->wr_antnoise = nf;
|
|
}
|
|
|
|
if (sc->flags & IPW_FLAG_SCANNING)
|
|
ipw_fix_channel(sc, m);
|
|
|
|
IPW_UNLOCK(sc);
|
|
ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
|
|
NET_EPOCH_ENTER(et);
|
|
if (ni != NULL) {
|
|
(void) ieee80211_input(ni, m, rssi - nf, nf);
|
|
ieee80211_free_node(ni);
|
|
} else
|
|
(void) ieee80211_input_all(ic, m, rssi - nf, nf);
|
|
NET_EPOCH_EXIT(et);
|
|
IPW_LOCK(sc);
|
|
|
|
bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
|
|
}
|
|
|
|
static void
|
|
ipw_rx_intr(struct ipw_softc *sc)
|
|
{
|
|
struct ipw_status *status;
|
|
struct ipw_soft_bd *sbd;
|
|
struct ipw_soft_buf *sbuf;
|
|
uint32_t r, i;
|
|
|
|
if (!(sc->flags & IPW_FLAG_FW_INITED))
|
|
return;
|
|
|
|
r = CSR_READ_4(sc, IPW_CSR_RX_READ);
|
|
|
|
bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
|
|
|
|
for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
|
|
status = &sc->status_list[i];
|
|
sbd = &sc->srbd_list[i];
|
|
sbuf = sbd->priv;
|
|
|
|
switch (le16toh(status->code) & 0xf) {
|
|
case IPW_STATUS_CODE_COMMAND:
|
|
ipw_rx_cmd_intr(sc, sbuf);
|
|
break;
|
|
|
|
case IPW_STATUS_CODE_NEWSTATE:
|
|
ipw_rx_newstate_intr(sc, sbuf);
|
|
break;
|
|
|
|
case IPW_STATUS_CODE_DATA_802_3:
|
|
case IPW_STATUS_CODE_DATA_802_11:
|
|
ipw_rx_data_intr(sc, status, sbd, sbuf);
|
|
break;
|
|
|
|
case IPW_STATUS_CODE_NOTIFICATION:
|
|
DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
|
|
le32toh(status->len), status->flags));
|
|
/* XXX maybe drive state machine AUTH->ASSOC? */
|
|
break;
|
|
|
|
default:
|
|
device_printf(sc->sc_dev, "unexpected status code %u\n",
|
|
le16toh(status->code));
|
|
}
|
|
|
|
/* firmware was killed, stop processing received frames */
|
|
if (!(sc->flags & IPW_FLAG_FW_INITED))
|
|
return;
|
|
|
|
sbd->bd->flags = 0;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
/* kick the firmware */
|
|
sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
|
|
CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
|
|
}
|
|
|
|
static void
|
|
ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
|
|
{
|
|
struct ipw_soft_hdr *shdr;
|
|
struct ipw_soft_buf *sbuf;
|
|
|
|
switch (sbd->type) {
|
|
case IPW_SBD_TYPE_COMMAND:
|
|
bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
|
|
break;
|
|
|
|
case IPW_SBD_TYPE_HEADER:
|
|
shdr = sbd->priv;
|
|
bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->hdr_dmat, shdr->map);
|
|
SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
|
|
break;
|
|
|
|
case IPW_SBD_TYPE_DATA:
|
|
sbuf = sbd->priv;
|
|
bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
|
|
SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
|
|
|
|
ieee80211_tx_complete(sbuf->ni, sbuf->m, 0/*XXX*/);
|
|
|
|
sc->sc_tx_timer = 0;
|
|
break;
|
|
}
|
|
|
|
sbd->type = IPW_SBD_TYPE_NOASSOC;
|
|
}
|
|
|
|
static void
|
|
ipw_tx_intr(struct ipw_softc *sc)
|
|
{
|
|
struct ipw_soft_bd *sbd;
|
|
uint32_t r, i;
|
|
|
|
if (!(sc->flags & IPW_FLAG_FW_INITED))
|
|
return;
|
|
|
|
r = CSR_READ_4(sc, IPW_CSR_TX_READ);
|
|
|
|
for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
|
|
sbd = &sc->stbd_list[i];
|
|
ipw_release_sbd(sc, sbd);
|
|
sc->txfree++;
|
|
}
|
|
|
|
/* remember what the firmware has processed */
|
|
sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
|
|
|
|
ipw_start(sc);
|
|
}
|
|
|
|
static void
|
|
ipw_fatal_error_intr(struct ipw_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
|
|
device_printf(sc->sc_dev, "firmware error\n");
|
|
if (vap != NULL) {
|
|
IPW_UNLOCK(sc);
|
|
ieee80211_cancel_scan(vap);
|
|
IPW_LOCK(sc);
|
|
}
|
|
ieee80211_runtask(ic, &sc->sc_init_task);
|
|
}
|
|
|
|
static void
|
|
ipw_intr(void *arg)
|
|
{
|
|
struct ipw_softc *sc = arg;
|
|
uint32_t r;
|
|
|
|
IPW_LOCK(sc);
|
|
|
|
r = CSR_READ_4(sc, IPW_CSR_INTR);
|
|
if (r == 0 || r == 0xffffffff)
|
|
goto done;
|
|
|
|
/* disable interrupts */
|
|
CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
|
|
|
|
/* acknowledge all interrupts */
|
|
CSR_WRITE_4(sc, IPW_CSR_INTR, r);
|
|
|
|
if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
|
|
ipw_fatal_error_intr(sc);
|
|
goto done;
|
|
}
|
|
|
|
if (r & IPW_INTR_FW_INIT_DONE)
|
|
wakeup(sc);
|
|
|
|
if (r & IPW_INTR_RX_TRANSFER)
|
|
ipw_rx_intr(sc);
|
|
|
|
if (r & IPW_INTR_TX_TRANSFER)
|
|
ipw_tx_intr(sc);
|
|
|
|
/* re-enable interrupts */
|
|
CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
|
|
done:
|
|
IPW_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
if (error != 0)
|
|
return;
|
|
|
|
KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
|
|
|
|
*(bus_addr_t *)arg = segs[0].ds_addr;
|
|
}
|
|
|
|
static const char *
|
|
ipw_cmdname(int cmd)
|
|
{
|
|
static const struct {
|
|
int cmd;
|
|
const char *name;
|
|
} cmds[] = {
|
|
{ IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
|
|
{ IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
|
|
{ IPW_CMD_DISABLE, "DISABLE" },
|
|
{ IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
|
|
{ IPW_CMD_ENABLE, "ENABLE" },
|
|
{ IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
|
|
{ IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
|
|
{ IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
|
|
{ IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
|
|
{ IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
|
|
{ IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
|
|
{ IPW_CMD_SET_ESSID, "SET_ESSID" },
|
|
{ IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
|
|
{ IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
|
|
{ IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
|
|
{ IPW_CMD_SET_MODE, "SET_MODE" },
|
|
{ IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
|
|
{ IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
|
|
{ IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
|
|
{ IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
|
|
{ IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
|
|
{ IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
|
|
{ IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
|
|
{ IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
|
|
{ IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
|
|
{ IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
|
|
{ IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
|
|
|
|
};
|
|
static char buf[12];
|
|
int i;
|
|
|
|
for (i = 0; i < nitems(cmds); i++)
|
|
if (cmds[i].cmd == cmd)
|
|
return cmds[i].name;
|
|
snprintf(buf, sizeof(buf), "%u", cmd);
|
|
return buf;
|
|
}
|
|
|
|
/*
|
|
* Send a command to the firmware and wait for the acknowledgement.
|
|
*/
|
|
static int
|
|
ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
|
|
{
|
|
struct ipw_soft_bd *sbd;
|
|
bus_addr_t physaddr;
|
|
int error;
|
|
|
|
IPW_LOCK_ASSERT(sc);
|
|
|
|
if (sc->flags & IPW_FLAG_BUSY) {
|
|
device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
|
|
__func__, ipw_cmdname(type));
|
|
return EAGAIN;
|
|
}
|
|
sc->flags |= IPW_FLAG_BUSY;
|
|
|
|
sbd = &sc->stbd_list[sc->txcur];
|
|
|
|
error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
|
|
sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not map command DMA memory\n");
|
|
sc->flags &= ~IPW_FLAG_BUSY;
|
|
return error;
|
|
}
|
|
|
|
sc->cmd.type = htole32(type);
|
|
sc->cmd.subtype = 0;
|
|
sc->cmd.len = htole32(len);
|
|
sc->cmd.seq = 0;
|
|
memcpy(sc->cmd.data, data, len);
|
|
|
|
sbd->type = IPW_SBD_TYPE_COMMAND;
|
|
sbd->bd->physaddr = htole32(physaddr);
|
|
sbd->bd->len = htole32(sizeof (struct ipw_cmd));
|
|
sbd->bd->nfrag = 1;
|
|
sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
|
|
IPW_BD_FLAG_TX_LAST_FRAGMENT;
|
|
|
|
bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
#ifdef IPW_DEBUG
|
|
if (ipw_debug >= 4) {
|
|
printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
|
|
0, 0, len);
|
|
/* Print the data buffer in the higher debug level */
|
|
if (ipw_debug >= 9 && len > 0) {
|
|
printf(" data: 0x");
|
|
for (int i = 1; i <= len; i++)
|
|
printf("%1D", (u_char *)data + len - i, "");
|
|
}
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
|
|
/* kick firmware */
|
|
sc->txfree--;
|
|
sc->txcur = (sc->txcur + 1) % IPW_NTBD;
|
|
CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
|
|
|
|
/* wait at most one second for command to complete */
|
|
error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
|
|
__func__, ipw_cmdname(type), error);
|
|
sc->flags &= ~IPW_FLAG_BUSY;
|
|
return (error);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ipw_tx_start(struct ipw_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211_frame *wh;
|
|
struct ipw_soft_bd *sbd;
|
|
struct ipw_soft_hdr *shdr;
|
|
struct ipw_soft_buf *sbuf;
|
|
struct ieee80211_key *k;
|
|
struct mbuf *mnew;
|
|
bus_dma_segment_t segs[IPW_MAX_NSEG];
|
|
bus_addr_t physaddr;
|
|
int nsegs, error, i;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
|
|
k = ieee80211_crypto_encap(ni, m0);
|
|
if (k == NULL) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
/* packet header may have moved, reset our local pointer */
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
if (ieee80211_radiotap_active_vap(vap)) {
|
|
struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
|
|
ieee80211_radiotap_tx(vap, m0);
|
|
}
|
|
|
|
shdr = SLIST_FIRST(&sc->free_shdr);
|
|
sbuf = SLIST_FIRST(&sc->free_sbuf);
|
|
KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
|
|
|
|
shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
|
|
shdr->hdr.subtype = 0;
|
|
shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) ? 1 : 0;
|
|
shdr->hdr.encrypt = 0;
|
|
shdr->hdr.keyidx = 0;
|
|
shdr->hdr.keysz = 0;
|
|
shdr->hdr.fragmentsz = 0;
|
|
IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
|
|
if (ic->ic_opmode == IEEE80211_M_STA)
|
|
IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
|
|
else
|
|
IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
|
|
|
|
/* trim IEEE802.11 header */
|
|
m_adj(m0, sizeof (struct ieee80211_frame));
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
|
|
&nsegs, 0);
|
|
if (error != 0 && error != EFBIG) {
|
|
device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
|
|
error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
if (error != 0) {
|
|
mnew = m_defrag(m0, M_NOWAIT);
|
|
if (mnew == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not defragment mbuf\n");
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
m0 = mnew;
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
|
|
segs, &nsegs, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not map mbuf (error %d)\n", error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
|
|
sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not map header DMA memory\n");
|
|
bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
|
|
SLIST_REMOVE_HEAD(&sc->free_shdr, next);
|
|
|
|
sbd = &sc->stbd_list[sc->txcur];
|
|
sbd->type = IPW_SBD_TYPE_HEADER;
|
|
sbd->priv = shdr;
|
|
sbd->bd->physaddr = htole32(physaddr);
|
|
sbd->bd->len = htole32(sizeof (struct ipw_hdr));
|
|
sbd->bd->nfrag = 1 + nsegs;
|
|
sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
|
|
IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
|
|
|
|
DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
|
|
shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
|
|
shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
|
|
":"));
|
|
|
|
sc->txfree--;
|
|
sc->txcur = (sc->txcur + 1) % IPW_NTBD;
|
|
|
|
sbuf->m = m0;
|
|
sbuf->ni = ni;
|
|
|
|
for (i = 0; i < nsegs; i++) {
|
|
sbd = &sc->stbd_list[sc->txcur];
|
|
|
|
sbd->bd->physaddr = htole32(segs[i].ds_addr);
|
|
sbd->bd->len = htole32(segs[i].ds_len);
|
|
sbd->bd->nfrag = 0;
|
|
sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
|
|
if (i == nsegs - 1) {
|
|
sbd->type = IPW_SBD_TYPE_DATA;
|
|
sbd->priv = sbuf;
|
|
sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
|
|
} else {
|
|
sbd->type = IPW_SBD_TYPE_NOASSOC;
|
|
sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
|
|
}
|
|
|
|
DPRINTFN(5, ("sending fragment (%d)\n", i));
|
|
|
|
sc->txfree--;
|
|
sc->txcur = (sc->txcur + 1) % IPW_NTBD;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
/* kick firmware */
|
|
CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
|
|
const struct ieee80211_bpf_params *params)
|
|
{
|
|
/* no support; just discard */
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_transmit(struct ieee80211com *ic, struct mbuf *m)
|
|
{
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
int error;
|
|
|
|
IPW_LOCK(sc);
|
|
if ((sc->flags & IPW_FLAG_RUNNING) == 0) {
|
|
IPW_UNLOCK(sc);
|
|
return (ENXIO);
|
|
}
|
|
error = mbufq_enqueue(&sc->sc_snd, m);
|
|
if (error) {
|
|
IPW_UNLOCK(sc);
|
|
return (error);
|
|
}
|
|
ipw_start(sc);
|
|
IPW_UNLOCK(sc);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
ipw_start(struct ipw_softc *sc)
|
|
{
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m;
|
|
|
|
IPW_LOCK_ASSERT(sc);
|
|
|
|
while (sc->txfree >= 1 + IPW_MAX_NSEG &&
|
|
(m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
|
|
ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
|
|
if (ipw_tx_start(sc, m, ni) != 0) {
|
|
if_inc_counter(ni->ni_vap->iv_ifp,
|
|
IFCOUNTER_OERRORS, 1);
|
|
ieee80211_free_node(ni);
|
|
break;
|
|
}
|
|
/* start watchdog timer */
|
|
sc->sc_tx_timer = 5;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ipw_watchdog(void *arg)
|
|
{
|
|
struct ipw_softc *sc = arg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
IPW_LOCK_ASSERT(sc);
|
|
|
|
if (sc->sc_tx_timer > 0) {
|
|
if (--sc->sc_tx_timer == 0) {
|
|
device_printf(sc->sc_dev, "device timeout\n");
|
|
counter_u64_add(ic->ic_oerrors, 1);
|
|
taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
|
|
}
|
|
}
|
|
if (sc->sc_scan_timer > 0) {
|
|
if (--sc->sc_scan_timer == 0) {
|
|
DPRINTFN(3, ("Scan timeout\n"));
|
|
/* End the scan */
|
|
if (sc->flags & IPW_FLAG_SCANNING) {
|
|
IPW_UNLOCK(sc);
|
|
ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
|
|
IPW_LOCK(sc);
|
|
sc->flags &= ~IPW_FLAG_SCANNING;
|
|
}
|
|
}
|
|
}
|
|
if (sc->flags & IPW_FLAG_RUNNING)
|
|
callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
|
|
}
|
|
|
|
static void
|
|
ipw_parent(struct ieee80211com *ic)
|
|
{
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
int startall = 0;
|
|
|
|
IPW_LOCK(sc);
|
|
if (ic->ic_nrunning > 0) {
|
|
if (!(sc->flags & IPW_FLAG_RUNNING)) {
|
|
ipw_init_locked(sc);
|
|
startall = 1;
|
|
}
|
|
} else if (sc->flags & IPW_FLAG_RUNNING)
|
|
ipw_stop_locked(sc);
|
|
IPW_UNLOCK(sc);
|
|
if (startall)
|
|
ieee80211_start_all(ic);
|
|
}
|
|
|
|
static void
|
|
ipw_stop_master(struct ipw_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
/* disable interrupts */
|
|
CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
|
|
|
|
CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
|
|
for (ntries = 0; ntries < 50; ntries++) {
|
|
if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
if (ntries == 50)
|
|
device_printf(sc->sc_dev, "timeout waiting for master\n");
|
|
|
|
tmp = CSR_READ_4(sc, IPW_CSR_RST);
|
|
CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
|
|
|
|
/* Clear all flags except the following */
|
|
sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
|
|
}
|
|
|
|
static int
|
|
ipw_reset(struct ipw_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
ipw_stop_master(sc);
|
|
|
|
/* move adapter to D0 state */
|
|
tmp = CSR_READ_4(sc, IPW_CSR_CTL);
|
|
CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
|
|
|
|
/* wait for clock stabilization */
|
|
for (ntries = 0; ntries < 1000; ntries++) {
|
|
if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
|
|
break;
|
|
DELAY(200);
|
|
}
|
|
if (ntries == 1000)
|
|
return EIO;
|
|
|
|
tmp = CSR_READ_4(sc, IPW_CSR_RST);
|
|
CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
|
|
|
|
DELAY(10);
|
|
|
|
tmp = CSR_READ_4(sc, IPW_CSR_CTL);
|
|
CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
|
|
{
|
|
int ms = hz < 1000 ? 1 : hz/10;
|
|
int i, error;
|
|
|
|
for (i = 0; i < 100; i++) {
|
|
if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
|
|
return 0;
|
|
error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
|
|
if (error == 0 || error != EWOULDBLOCK)
|
|
return 0;
|
|
}
|
|
DPRINTF(("%s: timeout waiting for %s\n",
|
|
__func__, waitfor ? "disable" : "enable"));
|
|
return ETIMEDOUT;
|
|
}
|
|
|
|
static int
|
|
ipw_enable(struct ipw_softc *sc)
|
|
{
|
|
int error;
|
|
|
|
if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
|
|
DPRINTF(("Enable adapter\n"));
|
|
error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
|
|
if (error != 0)
|
|
return error;
|
|
error = ipw_waitfordisable(sc, 0);
|
|
if (error != 0)
|
|
return error;
|
|
sc->flags |= IPW_FLAG_ENABLED;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_disable(struct ipw_softc *sc)
|
|
{
|
|
int error;
|
|
|
|
if (sc->flags & IPW_FLAG_ENABLED) {
|
|
DPRINTF(("Disable adapter\n"));
|
|
error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
|
|
if (error != 0)
|
|
return error;
|
|
error = ipw_waitfordisable(sc, 1);
|
|
if (error != 0)
|
|
return error;
|
|
sc->flags &= ~IPW_FLAG_ENABLED;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Upload the microcode to the device.
|
|
*/
|
|
static int
|
|
ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
|
|
{
|
|
int ntries;
|
|
|
|
MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
|
|
CSR_WRITE_4(sc, IPW_CSR_RST, 0);
|
|
|
|
MEM_WRITE_2(sc, 0x220000, 0x0703);
|
|
MEM_WRITE_2(sc, 0x220000, 0x0707);
|
|
|
|
MEM_WRITE_1(sc, 0x210014, 0x72);
|
|
MEM_WRITE_1(sc, 0x210014, 0x72);
|
|
|
|
MEM_WRITE_1(sc, 0x210000, 0x40);
|
|
MEM_WRITE_1(sc, 0x210000, 0x00);
|
|
MEM_WRITE_1(sc, 0x210000, 0x40);
|
|
|
|
MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
|
|
|
|
MEM_WRITE_1(sc, 0x210000, 0x00);
|
|
MEM_WRITE_1(sc, 0x210000, 0x00);
|
|
MEM_WRITE_1(sc, 0x210000, 0x80);
|
|
|
|
MEM_WRITE_2(sc, 0x220000, 0x0703);
|
|
MEM_WRITE_2(sc, 0x220000, 0x0707);
|
|
|
|
MEM_WRITE_1(sc, 0x210014, 0x72);
|
|
MEM_WRITE_1(sc, 0x210014, 0x72);
|
|
|
|
MEM_WRITE_1(sc, 0x210000, 0x00);
|
|
MEM_WRITE_1(sc, 0x210000, 0x80);
|
|
|
|
for (ntries = 0; ntries < 10; ntries++) {
|
|
if (MEM_READ_1(sc, 0x210000) & 1)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
if (ntries == 10) {
|
|
device_printf(sc->sc_dev,
|
|
"timeout waiting for ucode to initialize\n");
|
|
return EIO;
|
|
}
|
|
|
|
MEM_WRITE_4(sc, 0x3000e0, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* set of macros to handle unaligned little endian data in firmware image */
|
|
#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
|
|
#define GETLE16(p) ((p)[0] | (p)[1] << 8)
|
|
static int
|
|
ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
|
|
{
|
|
const uint8_t *p, *end;
|
|
uint32_t tmp, dst;
|
|
uint16_t len;
|
|
int error;
|
|
|
|
p = fw;
|
|
end = fw + size;
|
|
while (p < end) {
|
|
dst = GETLE32(p); p += 4;
|
|
len = GETLE16(p); p += 2;
|
|
|
|
ipw_write_mem_1(sc, dst, p, len);
|
|
p += len;
|
|
}
|
|
|
|
CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
|
|
IPW_IO_LED_OFF);
|
|
|
|
/* enable interrupts */
|
|
CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
|
|
|
|
/* kick the firmware */
|
|
CSR_WRITE_4(sc, IPW_CSR_RST, 0);
|
|
|
|
tmp = CSR_READ_4(sc, IPW_CSR_CTL);
|
|
CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
|
|
|
|
/* wait at most one second for firmware initialization to complete */
|
|
if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
|
|
device_printf(sc->sc_dev, "timeout waiting for firmware "
|
|
"initialization to complete\n");
|
|
return error;
|
|
}
|
|
|
|
tmp = CSR_READ_4(sc, IPW_CSR_IO);
|
|
CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
|
|
IPW_IO_GPIO3_MASK);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_setwepkeys(struct ipw_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
struct ipw_wep_key wepkey;
|
|
struct ieee80211_key *wk;
|
|
int error, i;
|
|
|
|
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
|
|
wk = &vap->iv_nw_keys[i];
|
|
|
|
if (wk->wk_cipher == NULL ||
|
|
wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
|
|
continue;
|
|
|
|
wepkey.idx = i;
|
|
wepkey.len = wk->wk_keylen;
|
|
memset(wepkey.key, 0, sizeof wepkey.key);
|
|
memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
|
|
DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
|
|
wepkey.len));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
|
|
sizeof wepkey);
|
|
if (error != 0)
|
|
return error;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
|
|
{
|
|
struct ipw_wpa_ie wpaie;
|
|
|
|
memset(&wpaie, 0, sizeof(wpaie));
|
|
wpaie.len = htole32(ielen);
|
|
/* XXX verify length */
|
|
memcpy(&wpaie.ie, ie, ielen);
|
|
DPRINTF(("Setting WPA IE\n"));
|
|
return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
|
|
}
|
|
|
|
static int
|
|
ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
|
|
{
|
|
static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
|
|
|
|
if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
|
|
DPRINTF(("Setting mandatory BSSID to null\n"));
|
|
return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
|
|
} else {
|
|
DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
|
|
return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
|
|
bssid, IEEE80211_ADDR_LEN);
|
|
}
|
|
}
|
|
|
|
static int
|
|
ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
|
|
{
|
|
if (ssidlen == 0) {
|
|
/*
|
|
* A bug in the firmware breaks the ``don't associate''
|
|
* bit in the scan options command. To compensate for
|
|
* this install a bogus ssid when no ssid is specified
|
|
* so the firmware won't try to associate.
|
|
*/
|
|
DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
|
|
return ipw_cmd(sc, IPW_CMD_SET_ESSID,
|
|
"\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
|
|
"\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
|
|
"\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
|
|
"\x3c\x3d", IEEE80211_NWID_LEN);
|
|
} else {
|
|
#ifdef IPW_DEBUG
|
|
if (ipw_debug > 0) {
|
|
printf("Setting ESSID to ");
|
|
ieee80211_print_essid(ssid, ssidlen);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
|
|
}
|
|
}
|
|
|
|
static int
|
|
ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
|
|
{
|
|
struct ipw_scan_options opts;
|
|
|
|
DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
|
|
opts.channels = htole32(chanmask);
|
|
opts.flags = htole32(flags);
|
|
return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
|
|
}
|
|
|
|
static int
|
|
ipw_scan(struct ipw_softc *sc)
|
|
{
|
|
uint32_t params;
|
|
int error;
|
|
|
|
DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
|
|
|
|
if (sc->flags & IPW_FLAG_SCANNING)
|
|
return (EBUSY);
|
|
sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
|
|
|
|
/* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
|
|
error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
/*
|
|
* Setup null/bogus ssid so firmware doesn't use any previous
|
|
* ssid to try and associate. This is because the ``don't
|
|
* associate'' option bit is broken (sigh).
|
|
*/
|
|
error = ipw_setssid(sc, NULL, 0);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
/*
|
|
* NB: the adapter may be disabled on association lost;
|
|
* if so just re-enable it to kick off scanning.
|
|
*/
|
|
DPRINTF(("Starting scan\n"));
|
|
sc->sc_scan_timer = 3;
|
|
if (sc->flags & IPW_FLAG_ENABLED) {
|
|
params = 0; /* XXX? */
|
|
error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
|
|
¶ms, sizeof(params));
|
|
} else
|
|
error = ipw_enable(sc);
|
|
done:
|
|
if (error != 0) {
|
|
DPRINTF(("Scan failed\n"));
|
|
sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint32_t data;
|
|
int error;
|
|
|
|
data = htole32(ieee80211_chan2ieee(ic, chan));
|
|
DPRINTF(("Setting channel to %u\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
|
|
if (error == 0)
|
|
ipw_setcurchan(sc, chan);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ipw_assoc(struct ieee80211com *ic, struct ieee80211vap *vap)
|
|
{
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
struct ieee80211_node *ni = vap->iv_bss;
|
|
struct ipw_security security;
|
|
uint32_t data;
|
|
int error;
|
|
|
|
IPW_LOCK(sc);
|
|
error = ipw_disable(sc);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
memset(&security, 0, sizeof security);
|
|
security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
|
|
IPW_AUTH_SHARED : IPW_AUTH_OPEN;
|
|
security.ciphers = htole32(IPW_CIPHER_NONE);
|
|
DPRINTF(("Setting authmode to %u\n", security.authmode));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
|
|
sizeof security);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
data = htole32(vap->iv_rtsthreshold);
|
|
DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
data = htole32(vap->iv_fragthreshold);
|
|
DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
if (vap->iv_flags & IEEE80211_F_PRIVACY) {
|
|
error = ipw_setwepkeys(sc);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
|
|
data = htole32(vap->iv_def_txkey);
|
|
DPRINTF(("Setting wep tx key index to %u\n",
|
|
le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
|
|
sizeof data);
|
|
if (error != 0)
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
|
|
DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
error = ipw_setbssid(sc, ni->ni_bssid);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
if (vap->iv_appie_wpa != NULL) {
|
|
struct ieee80211_appie *ie = vap->iv_appie_wpa;
|
|
error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
|
|
if (error != 0)
|
|
goto done;
|
|
}
|
|
if (ic->ic_opmode == IEEE80211_M_IBSS) {
|
|
error = ipw_setchannel(sc, ni->ni_chan);
|
|
if (error != 0)
|
|
goto done;
|
|
}
|
|
|
|
/* lock scan to ap's channel and enable associate */
|
|
error = ipw_setscanopts(sc,
|
|
1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
error = ipw_enable(sc); /* finally, enable adapter */
|
|
if (error == 0)
|
|
sc->flags |= IPW_FLAG_ASSOCIATING;
|
|
done:
|
|
IPW_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
ipw_disassoc(struct ieee80211com *ic, struct ieee80211vap *vap)
|
|
{
|
|
struct ieee80211_node *ni = vap->iv_bss;
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
|
|
IPW_LOCK(sc);
|
|
DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
|
|
/*
|
|
* NB: don't try to do this if ipw_stop_master has
|
|
* shutdown the firmware and disabled interrupts.
|
|
*/
|
|
if (sc->flags & IPW_FLAG_FW_INITED) {
|
|
sc->flags &= ~IPW_FLAG_ASSOCIATED;
|
|
/*
|
|
* NB: firmware currently ignores bssid parameter, but
|
|
* supply it in case this changes (follow linux driver).
|
|
*/
|
|
(void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
|
|
ni->ni_bssid, IEEE80211_ADDR_LEN);
|
|
}
|
|
IPW_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Handler for sc_init_task. This is a simple wrapper around ipw_init().
|
|
* It is called on firmware panics or on watchdog timeouts.
|
|
*/
|
|
static void
|
|
ipw_init_task(void *context, int pending)
|
|
{
|
|
ipw_init(context);
|
|
}
|
|
|
|
static void
|
|
ipw_init(void *priv)
|
|
{
|
|
struct ipw_softc *sc = priv;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
IPW_LOCK(sc);
|
|
ipw_init_locked(sc);
|
|
IPW_UNLOCK(sc);
|
|
|
|
if (sc->flags & IPW_FLAG_RUNNING)
|
|
ieee80211_start_all(ic); /* start all vap's */
|
|
}
|
|
|
|
static void
|
|
ipw_init_locked(struct ipw_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
const struct firmware *fp;
|
|
const struct ipw_firmware_hdr *hdr;
|
|
const char *fw;
|
|
|
|
IPW_LOCK_ASSERT(sc);
|
|
|
|
DPRINTF(("%s: state %s flags 0x%x\n", __func__,
|
|
ieee80211_state_name[vap->iv_state], sc->flags));
|
|
|
|
/*
|
|
* Avoid re-entrant calls. We need to release the mutex in ipw_init()
|
|
* when loading the firmware and we don't want to be called during this
|
|
* operation.
|
|
*/
|
|
if (sc->flags & IPW_FLAG_INIT_LOCKED)
|
|
return;
|
|
sc->flags |= IPW_FLAG_INIT_LOCKED;
|
|
|
|
ipw_stop_locked(sc);
|
|
|
|
if (ipw_reset(sc) != 0) {
|
|
device_printf(sc->sc_dev, "could not reset adapter\n");
|
|
goto fail;
|
|
}
|
|
|
|
if (sc->sc_firmware == NULL) {
|
|
device_printf(sc->sc_dev, "no firmware\n");
|
|
goto fail;
|
|
}
|
|
/* NB: consistency already checked on load */
|
|
fp = sc->sc_firmware;
|
|
hdr = (const struct ipw_firmware_hdr *)fp->data;
|
|
|
|
DPRINTF(("Loading firmware image '%s'\n", fp->name));
|
|
fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
|
|
if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
|
|
device_printf(sc->sc_dev, "could not load microcode\n");
|
|
goto fail;
|
|
}
|
|
|
|
ipw_stop_master(sc);
|
|
|
|
/*
|
|
* Setup tx, rx and status rings.
|
|
*/
|
|
sc->txold = IPW_NTBD - 1;
|
|
sc->txcur = 0;
|
|
sc->txfree = IPW_NTBD - 2;
|
|
sc->rxcur = IPW_NRBD - 1;
|
|
|
|
CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
|
|
CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
|
|
CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
|
|
CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
|
|
|
|
CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
|
|
CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
|
|
CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
|
|
CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
|
|
|
|
CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
|
|
|
|
fw = (const char *)fp->data + sizeof *hdr;
|
|
if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
|
|
device_printf(sc->sc_dev, "could not load firmware\n");
|
|
goto fail;
|
|
}
|
|
|
|
sc->flags |= IPW_FLAG_FW_INITED;
|
|
|
|
/* retrieve information tables base addresses */
|
|
sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
|
|
sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
|
|
|
|
ipw_write_table1(sc, IPW_INFO_LOCK, 0);
|
|
|
|
if (ipw_config(sc) != 0) {
|
|
device_printf(sc->sc_dev, "device configuration failed\n");
|
|
goto fail;
|
|
}
|
|
|
|
callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
|
|
sc->flags |= IPW_FLAG_RUNNING;
|
|
sc->flags &= ~IPW_FLAG_INIT_LOCKED;
|
|
return;
|
|
|
|
fail:
|
|
ipw_stop_locked(sc);
|
|
sc->flags &= ~IPW_FLAG_INIT_LOCKED;
|
|
}
|
|
|
|
static int
|
|
ipw_config(struct ipw_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ipw_configuration config;
|
|
uint32_t data;
|
|
int error;
|
|
|
|
error = ipw_disable(sc);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
switch (ic->ic_opmode) {
|
|
case IEEE80211_M_STA:
|
|
case IEEE80211_M_HOSTAP:
|
|
case IEEE80211_M_WDS: /* XXX */
|
|
data = htole32(IPW_MODE_BSS);
|
|
break;
|
|
case IEEE80211_M_IBSS:
|
|
case IEEE80211_M_AHDEMO:
|
|
data = htole32(IPW_MODE_IBSS);
|
|
break;
|
|
case IEEE80211_M_MONITOR:
|
|
data = htole32(IPW_MODE_MONITOR);
|
|
break;
|
|
default:
|
|
device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
|
|
return EINVAL;
|
|
}
|
|
DPRINTF(("Setting mode to %u\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_IBSS ||
|
|
ic->ic_opmode == IEEE80211_M_MONITOR) {
|
|
error = ipw_setchannel(sc, ic->ic_curchan);
|
|
if (error != 0)
|
|
return error;
|
|
}
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_MONITOR)
|
|
return ipw_enable(sc);
|
|
|
|
config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
|
|
IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
|
|
if (ic->ic_opmode == IEEE80211_M_IBSS)
|
|
config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
|
|
if (ic->ic_promisc > 0)
|
|
config.flags |= htole32(IPW_CFG_PROMISCUOUS);
|
|
config.bss_chan = htole32(0x3fff); /* channels 1-14 */
|
|
config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
|
|
DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
data = htole32(0xf); /* 1, 2, 5.5, 11 */
|
|
DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
/* Use the same rate set */
|
|
DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
/* Use the same rate set */
|
|
DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
data = htole32(IPW_POWER_MODE_CAM);
|
|
DPRINTF(("Setting power mode to %u\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_IBSS) {
|
|
data = htole32(32); /* default value */
|
|
DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
|
|
error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
|
|
sizeof data);
|
|
if (error != 0)
|
|
return error;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ipw_stop(void *priv)
|
|
{
|
|
struct ipw_softc *sc = priv;
|
|
|
|
IPW_LOCK(sc);
|
|
ipw_stop_locked(sc);
|
|
IPW_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
ipw_stop_locked(struct ipw_softc *sc)
|
|
{
|
|
int i;
|
|
|
|
IPW_LOCK_ASSERT(sc);
|
|
|
|
callout_stop(&sc->sc_wdtimer);
|
|
ipw_stop_master(sc);
|
|
|
|
CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
|
|
|
|
/*
|
|
* Release tx buffers.
|
|
*/
|
|
for (i = 0; i < IPW_NTBD; i++)
|
|
ipw_release_sbd(sc, &sc->stbd_list[i]);
|
|
|
|
sc->sc_tx_timer = 0;
|
|
sc->flags &= ~IPW_FLAG_RUNNING;
|
|
}
|
|
|
|
static int
|
|
ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct ipw_softc *sc = arg1;
|
|
uint32_t i, size, buf[256];
|
|
|
|
memset(buf, 0, sizeof buf);
|
|
|
|
if (!(sc->flags & IPW_FLAG_FW_INITED))
|
|
return SYSCTL_OUT(req, buf, sizeof buf);
|
|
|
|
CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
|
|
|
|
size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
|
|
for (i = 1; i < size; i++)
|
|
buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
|
|
|
|
return SYSCTL_OUT(req, buf, size);
|
|
}
|
|
|
|
static int
|
|
ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct ipw_softc *sc = arg1;
|
|
int val;
|
|
|
|
val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
|
|
(CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
|
|
|
|
return SYSCTL_OUT(req, &val, sizeof val);
|
|
}
|
|
|
|
static uint32_t
|
|
ipw_read_table1(struct ipw_softc *sc, uint32_t off)
|
|
{
|
|
return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
|
|
}
|
|
|
|
static void
|
|
ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
|
|
{
|
|
MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
|
|
{
|
|
uint32_t addr, info;
|
|
uint16_t count, size;
|
|
uint32_t total;
|
|
|
|
/* addr[4] + count[2] + size[2] */
|
|
addr = MEM_READ_4(sc, sc->table2_base + off);
|
|
info = MEM_READ_4(sc, sc->table2_base + off + 4);
|
|
|
|
count = info >> 16;
|
|
size = info & 0xffff;
|
|
total = count * size;
|
|
|
|
if (total > *len) {
|
|
*len = total;
|
|
return EINVAL;
|
|
}
|
|
|
|
*len = total;
|
|
ipw_read_mem_1(sc, addr, buf, total);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
|
|
bus_size_t count)
|
|
{
|
|
for (; count > 0; offset++, datap++, count--) {
|
|
CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
|
|
*datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
|
|
bus_size_t count)
|
|
{
|
|
for (; count > 0; offset++, datap++, count--) {
|
|
CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
|
|
CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ipw_scan_start(struct ieee80211com *ic)
|
|
{
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
|
|
IPW_LOCK(sc);
|
|
ipw_scan(sc);
|
|
IPW_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
ipw_getradiocaps(struct ieee80211com *ic,
|
|
int maxchans, int *nchans, struct ieee80211_channel chans[])
|
|
{
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
uint8_t bands[IEEE80211_MODE_BYTES];
|
|
int i;
|
|
|
|
memset(bands, 0, sizeof(bands));
|
|
setbit(bands, IEEE80211_MODE_11B);
|
|
|
|
for (i = 1; i < 16; i++) {
|
|
if (sc->chanmask & (1 << i)) {
|
|
ieee80211_add_channel(chans, maxchans, nchans,
|
|
i, 0, 0, 0, bands);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void
|
|
ipw_set_channel(struct ieee80211com *ic)
|
|
{
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
|
|
IPW_LOCK(sc);
|
|
if (ic->ic_opmode == IEEE80211_M_MONITOR) {
|
|
ipw_disable(sc);
|
|
ipw_setchannel(sc, ic->ic_curchan);
|
|
ipw_enable(sc);
|
|
}
|
|
IPW_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
|
|
{
|
|
/* NB: all channels are scanned at once */
|
|
}
|
|
|
|
static void
|
|
ipw_scan_mindwell(struct ieee80211_scan_state *ss)
|
|
{
|
|
/* NB: don't try to abort scan; wait for firmware to finish */
|
|
}
|
|
|
|
static void
|
|
ipw_scan_end(struct ieee80211com *ic)
|
|
{
|
|
struct ipw_softc *sc = ic->ic_softc;
|
|
|
|
IPW_LOCK(sc);
|
|
sc->flags &= ~IPW_FLAG_SCANNING;
|
|
IPW_UNLOCK(sc);
|
|
}
|