mirror of
https://git.FreeBSD.org/src.git
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820e6a1f38
this opmode is not supported. Approved by: re (kib)
3558 lines
92 KiB
C
3558 lines
92 KiB
C
/*-
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* Copyright (c) 2004, 2005
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* Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
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* Copyright (c) 2005-2006 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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__FBSDID("$FreeBSD$");
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/*-
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* Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG 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/lock.h>
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#include <sys/mutex.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/proc.h>
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#include <sys/mount.h>
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#include <sys/namei.h>
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#include <sys/linker.h>
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#include <sys/firmware.h>
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#include <sys/taskqueue.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_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 <net80211/ieee80211_input.h>
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#include <net80211/ieee80211_regdomain.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/iwi/if_iwireg.h>
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#include <dev/iwi/if_iwivar.h>
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#define IWI_DEBUG
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#ifdef IWI_DEBUG
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#define DPRINTF(x) do { if (iwi_debug > 0) printf x; } while (0)
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#define DPRINTFN(n, x) do { if (iwi_debug >= (n)) printf x; } while (0)
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int iwi_debug = 0;
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SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level");
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static const char *iwi_fw_states[] = {
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"IDLE", /* IWI_FW_IDLE */
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"LOADING", /* IWI_FW_LOADING */
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"ASSOCIATING", /* IWI_FW_ASSOCIATING */
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"DISASSOCIATING", /* IWI_FW_DISASSOCIATING */
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"SCANNING", /* IWI_FW_SCANNING */
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};
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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(iwi, pci, 1, 1, 1);
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MODULE_DEPEND(iwi, wlan, 1, 1, 1);
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MODULE_DEPEND(iwi, firmware, 1, 1, 1);
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enum {
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IWI_LED_TX,
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IWI_LED_RX,
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IWI_LED_POLL,
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};
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struct iwi_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 iwi_ident iwi_ident_table[] = {
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{ 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" },
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{ 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" },
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{ 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" },
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{ 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" },
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{ 0, 0, NULL }
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};
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static struct ieee80211vap *iwi_vap_create(struct ieee80211com *,
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const char name[IFNAMSIZ], int unit, int 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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static void iwi_vap_delete(struct ieee80211vap *);
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static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
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static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *,
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int);
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static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
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static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
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static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *,
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int, bus_addr_t, bus_addr_t);
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static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
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static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
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static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *,
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int);
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static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
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static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
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static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *,
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const uint8_t [IEEE80211_ADDR_LEN]);
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static void iwi_node_free(struct ieee80211_node *);
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static void iwi_media_status(struct ifnet *, struct ifmediareq *);
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static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
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static void iwi_wme_init(struct iwi_softc *);
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static int iwi_wme_setparams(struct iwi_softc *, struct ieee80211com *);
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static void iwi_update_wme(void *, int);
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static int iwi_wme_update(struct ieee80211com *);
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static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t);
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static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int,
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struct iwi_frame *);
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static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *);
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static void iwi_rx_intr(struct iwi_softc *);
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static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *);
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static void iwi_intr(void *);
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static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t);
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static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int);
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static int iwi_tx_start(struct ifnet *, struct mbuf *,
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struct ieee80211_node *, int);
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static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *,
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const struct ieee80211_bpf_params *);
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static void iwi_start_locked(struct ifnet *);
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static void iwi_start(struct ifnet *);
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static void iwi_watchdog(void *);
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static int iwi_ioctl(struct ifnet *, u_long, caddr_t);
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static void iwi_stop_master(struct iwi_softc *);
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static int iwi_reset(struct iwi_softc *);
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static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *);
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static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *);
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static void iwi_release_fw_dma(struct iwi_softc *sc);
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static int iwi_config(struct iwi_softc *);
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static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode);
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static void iwi_put_firmware(struct iwi_softc *);
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static int iwi_scanchan(struct iwi_softc *, unsigned long, int);
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static void iwi_scan_start(struct ieee80211com *);
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static void iwi_scan_end(struct ieee80211com *);
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static void iwi_set_channel(struct ieee80211com *);
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static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell);
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static void iwi_scan_mindwell(struct ieee80211_scan_state *);
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static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *);
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static void iwi_disassoc(void *, int);
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static int iwi_disassociate(struct iwi_softc *, int quiet);
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static void iwi_init_locked(struct iwi_softc *);
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static void iwi_init(void *);
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static int iwi_init_fw_dma(struct iwi_softc *, int);
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static void iwi_stop_locked(void *);
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static void iwi_stop(struct iwi_softc *);
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static void iwi_restart(void *, int);
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static int iwi_getrfkill(struct iwi_softc *);
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static void iwi_radio_on(void *, int);
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static void iwi_radio_off(void *, int);
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static void iwi_sysctlattach(struct iwi_softc *);
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static void iwi_led_event(struct iwi_softc *, int);
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static void iwi_ledattach(struct iwi_softc *);
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static int iwi_probe(device_t);
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static int iwi_attach(device_t);
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static int iwi_detach(device_t);
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static int iwi_shutdown(device_t);
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static int iwi_suspend(device_t);
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static int iwi_resume(device_t);
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static device_method_t iwi_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, iwi_probe),
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DEVMETHOD(device_attach, iwi_attach),
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DEVMETHOD(device_detach, iwi_detach),
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DEVMETHOD(device_shutdown, iwi_shutdown),
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DEVMETHOD(device_suspend, iwi_suspend),
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DEVMETHOD(device_resume, iwi_resume),
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{ 0, 0 }
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};
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static driver_t iwi_driver = {
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"iwi",
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iwi_methods,
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sizeof (struct iwi_softc)
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};
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static devclass_t iwi_devclass;
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DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, 0, 0);
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static __inline uint8_t
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MEM_READ_1(struct iwi_softc *sc, uint32_t addr)
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{
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CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
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return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA);
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}
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static __inline uint32_t
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MEM_READ_4(struct iwi_softc *sc, uint32_t addr)
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{
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CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
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return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA);
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}
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static int
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iwi_probe(device_t dev)
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{
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const struct iwi_ident *ident;
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for (ident = iwi_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 0;
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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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#define IWI_PCI_BAR0 0x10
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static int
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iwi_attach(device_t dev)
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{
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struct iwi_softc *sc = device_get_softc(dev);
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struct ifnet *ifp;
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struct ieee80211com *ic;
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uint16_t val;
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int i, error;
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uint8_t bands;
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uint8_t macaddr[IEEE80211_ADDR_LEN];
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sc->sc_dev = dev;
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ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
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if (ifp == NULL) {
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device_printf(dev, "can not if_alloc()\n");
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return ENXIO;
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}
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ic = ifp->if_l2com;
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IWI_LOCK_INIT(sc);
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sc->sc_unr = new_unrhdr(1, IWI_MAX_IBSSNODE-1, &sc->sc_mtx);
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TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on, sc);
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TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off, sc);
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TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc);
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TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc);
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TASK_INIT(&sc->sc_wmetask, 0, iwi_update_wme, sc);
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callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
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callout_init_mtx(&sc->sc_rftimer, &sc->sc_mtx, 0);
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if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
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device_printf(dev, "chip is in D%d power mode "
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"-- setting to D0\n", pci_get_powerstate(dev));
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pci_set_powerstate(dev, PCI_POWERSTATE_D0);
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}
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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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sc->mem_rid = IWI_PCI_BAR0;
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sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
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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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sc->irq_rid = 0;
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sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
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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 fail;
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}
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if (iwi_reset(sc) != 0) {
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device_printf(dev, "could not reset adapter\n");
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goto fail;
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}
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/*
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* Allocate rings.
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*/
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if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) {
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device_printf(dev, "could not allocate Cmd ring\n");
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goto fail;
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}
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for (i = 0; i < 4; i++) {
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error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT,
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IWI_CSR_TX1_RIDX + i * 4,
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IWI_CSR_TX1_WIDX + i * 4);
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if (error != 0) {
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device_printf(dev, "could not allocate Tx ring %d\n",
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i+i);
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goto fail;
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}
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}
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if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) {
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device_printf(dev, "could not allocate Rx ring\n");
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goto fail;
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}
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iwi_wme_init(sc);
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ifp->if_softc = sc;
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if_initname(ifp, device_get_name(dev), device_get_unit(dev));
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
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ifp->if_init = iwi_init;
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ifp->if_ioctl = iwi_ioctl;
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ifp->if_start = iwi_start;
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IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
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ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
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IFQ_SET_READY(&ifp->if_snd);
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ic->ic_ifp = ifp;
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ic->ic_opmode = IEEE80211_M_STA;
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ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
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|
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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 */
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| IEEE80211_C_WME /* 802.11e */
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#if 0
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| IEEE80211_C_BGSCAN /* capable of bg scanning */
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#endif
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;
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|
|
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/* read MAC address from EEPROM */
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val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0);
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macaddr[0] = val & 0xff;
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macaddr[1] = val >> 8;
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val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1);
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macaddr[2] = val & 0xff;
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macaddr[3] = val >> 8;
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val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2);
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macaddr[4] = val & 0xff;
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macaddr[5] = val >> 8;
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|
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bands = 0;
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setbit(&bands, IEEE80211_MODE_11B);
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setbit(&bands, IEEE80211_MODE_11G);
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if (pci_get_device(dev) >= 0x4223)
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setbit(&bands, IEEE80211_MODE_11A);
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ieee80211_init_channels(ic, NULL, &bands);
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|
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ieee80211_ifattach(ic, macaddr);
|
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/* override default methods */
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ic->ic_node_alloc = iwi_node_alloc;
|
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sc->sc_node_free = ic->ic_node_free;
|
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ic->ic_node_free = iwi_node_free;
|
|
ic->ic_raw_xmit = iwi_raw_xmit;
|
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ic->ic_scan_start = iwi_scan_start;
|
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ic->ic_scan_end = iwi_scan_end;
|
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ic->ic_set_channel = iwi_set_channel;
|
|
ic->ic_scan_curchan = iwi_scan_curchan;
|
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ic->ic_scan_mindwell = iwi_scan_mindwell;
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ic->ic_wme.wme_update = iwi_wme_update;
|
|
|
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ic->ic_vap_create = iwi_vap_create;
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ic->ic_vap_delete = iwi_vap_delete;
|
|
|
|
ieee80211_radiotap_attach(ic,
|
|
&sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
|
|
IWI_TX_RADIOTAP_PRESENT,
|
|
&sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
|
|
IWI_RX_RADIOTAP_PRESENT);
|
|
|
|
iwi_sysctlattach(sc);
|
|
iwi_ledattach(sc);
|
|
|
|
/*
|
|
* Hook our interrupt after all initialization is complete.
|
|
*/
|
|
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
|
|
NULL, iwi_intr, sc, &sc->sc_ih);
|
|
if (error != 0) {
|
|
device_printf(dev, "could not set up interrupt\n");
|
|
goto fail;
|
|
}
|
|
|
|
if (bootverbose)
|
|
ieee80211_announce(ic);
|
|
|
|
return 0;
|
|
fail:
|
|
/* XXX fix */
|
|
iwi_detach(dev);
|
|
return ENXIO;
|
|
}
|
|
|
|
static int
|
|
iwi_detach(device_t dev)
|
|
{
|
|
struct iwi_softc *sc = device_get_softc(dev);
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
/* NB: do early to drain any pending tasks */
|
|
ieee80211_draintask(ic, &sc->sc_radiontask);
|
|
ieee80211_draintask(ic, &sc->sc_radiofftask);
|
|
ieee80211_draintask(ic, &sc->sc_restarttask);
|
|
ieee80211_draintask(ic, &sc->sc_disassoctask);
|
|
|
|
iwi_stop(sc);
|
|
|
|
ieee80211_ifdetach(ic);
|
|
|
|
iwi_put_firmware(sc);
|
|
iwi_release_fw_dma(sc);
|
|
|
|
iwi_free_cmd_ring(sc, &sc->cmdq);
|
|
iwi_free_tx_ring(sc, &sc->txq[0]);
|
|
iwi_free_tx_ring(sc, &sc->txq[1]);
|
|
iwi_free_tx_ring(sc, &sc->txq[2]);
|
|
iwi_free_tx_ring(sc, &sc->txq[3]);
|
|
iwi_free_rx_ring(sc, &sc->rxq);
|
|
|
|
bus_teardown_intr(dev, sc->irq, sc->sc_ih);
|
|
bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
|
|
|
|
bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
|
|
|
|
delete_unrhdr(sc->sc_unr);
|
|
|
|
IWI_LOCK_DESTROY(sc);
|
|
|
|
if_free(ifp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ieee80211vap *
|
|
iwi_vap_create(struct ieee80211com *ic,
|
|
const char name[IFNAMSIZ], int unit, int opmode, int flags,
|
|
const uint8_t bssid[IEEE80211_ADDR_LEN],
|
|
const uint8_t mac[IEEE80211_ADDR_LEN])
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
struct iwi_vap *ivp;
|
|
struct ieee80211vap *vap;
|
|
int i;
|
|
|
|
if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
|
|
return NULL;
|
|
/*
|
|
* Get firmware image (and possibly dma memory) on mode change.
|
|
*/
|
|
if (iwi_get_firmware(sc, opmode))
|
|
return NULL;
|
|
/* allocate DMA memory for mapping firmware image */
|
|
i = sc->fw_fw.size;
|
|
if (sc->fw_boot.size > i)
|
|
i = sc->fw_boot.size;
|
|
/* XXX do we dma the ucode as well ? */
|
|
if (sc->fw_uc.size > i)
|
|
i = sc->fw_uc.size;
|
|
if (iwi_init_fw_dma(sc, i))
|
|
return NULL;
|
|
|
|
ivp = (struct iwi_vap *) malloc(sizeof(struct iwi_vap),
|
|
M_80211_VAP, M_NOWAIT | M_ZERO);
|
|
if (ivp == NULL)
|
|
return NULL;
|
|
vap = &ivp->iwi_vap;
|
|
ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
|
|
/* override the default, the setting comes from the linux driver */
|
|
vap->iv_bmissthreshold = 24;
|
|
/* override with driver methods */
|
|
ivp->iwi_newstate = vap->iv_newstate;
|
|
vap->iv_newstate = iwi_newstate;
|
|
|
|
/* complete setup */
|
|
ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status);
|
|
ic->ic_opmode = opmode;
|
|
return vap;
|
|
}
|
|
|
|
static void
|
|
iwi_vap_delete(struct ieee80211vap *vap)
|
|
{
|
|
struct iwi_vap *ivp = IWI_VAP(vap);
|
|
|
|
ieee80211_vap_detach(vap);
|
|
free(ivp, M_80211_VAP);
|
|
}
|
|
|
|
static void
|
|
iwi_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 int
|
|
iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count)
|
|
{
|
|
int error;
|
|
|
|
ring->count = count;
|
|
ring->queued = 0;
|
|
ring->cur = ring->next = 0;
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 0,
|
|
NULL, NULL, &ring->desc_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create desc DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not allocate DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
|
|
count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not load desc DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: iwi_free_cmd_ring(sc, ring);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
|
|
{
|
|
ring->queued = 0;
|
|
ring->cur = ring->next = 0;
|
|
}
|
|
|
|
static void
|
|
iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
|
|
{
|
|
if (ring->desc != NULL) {
|
|
bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
|
|
bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
|
|
}
|
|
|
|
if (ring->desc_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->desc_dmat);
|
|
}
|
|
|
|
static int
|
|
iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count,
|
|
bus_addr_t csr_ridx, bus_addr_t csr_widx)
|
|
{
|
|
int i, error;
|
|
|
|
ring->count = count;
|
|
ring->queued = 0;
|
|
ring->cur = ring->next = 0;
|
|
ring->csr_ridx = csr_ridx;
|
|
ring->csr_widx = csr_widx;
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
count * IWI_TX_DESC_SIZE, 1, count * IWI_TX_DESC_SIZE, 0, NULL,
|
|
NULL, &ring->desc_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create desc DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not allocate DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
|
|
count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not load desc DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF,
|
|
M_NOWAIT | M_ZERO);
|
|
if (ring->data == NULL) {
|
|
device_printf(sc->sc_dev, "could not allocate soft data\n");
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
|
|
IWI_MAX_NSEG, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create data DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < count; i++) {
|
|
error = bus_dmamap_create(ring->data_dmat, 0,
|
|
&ring->data[i].map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create DMA map\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: iwi_free_tx_ring(sc, ring);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
|
|
{
|
|
struct iwi_tx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < ring->count; i++) {
|
|
data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(ring->data_dmat, data->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->data_dmat, data->map);
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
}
|
|
|
|
if (data->ni != NULL) {
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
}
|
|
}
|
|
|
|
ring->queued = 0;
|
|
ring->cur = ring->next = 0;
|
|
}
|
|
|
|
static void
|
|
iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
|
|
{
|
|
struct iwi_tx_data *data;
|
|
int i;
|
|
|
|
if (ring->desc != NULL) {
|
|
bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
|
|
bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
|
|
}
|
|
|
|
if (ring->desc_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->desc_dmat);
|
|
|
|
if (ring->data != NULL) {
|
|
for (i = 0; i < ring->count; i++) {
|
|
data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(ring->data_dmat, data->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->data_dmat, data->map);
|
|
m_freem(data->m);
|
|
}
|
|
|
|
if (data->ni != NULL)
|
|
ieee80211_free_node(data->ni);
|
|
|
|
if (data->map != NULL)
|
|
bus_dmamap_destroy(ring->data_dmat, data->map);
|
|
}
|
|
|
|
free(ring->data, M_DEVBUF);
|
|
}
|
|
|
|
if (ring->data_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->data_dmat);
|
|
}
|
|
|
|
static int
|
|
iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count)
|
|
{
|
|
struct iwi_rx_data *data;
|
|
int i, error;
|
|
|
|
ring->count = count;
|
|
ring->cur = 0;
|
|
|
|
ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF,
|
|
M_NOWAIT | M_ZERO);
|
|
if (ring->data == NULL) {
|
|
device_printf(sc->sc_dev, "could not allocate soft data\n");
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
|
|
1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create data DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < count; i++) {
|
|
data = &ring->data[i];
|
|
|
|
error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (data->m == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate rx mbuf\n");
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(ring->data_dmat, data->map,
|
|
mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
|
|
&data->physaddr, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not load rx buf DMA map");
|
|
goto fail;
|
|
}
|
|
|
|
data->reg = IWI_CSR_RX_BASE + i * 4;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: iwi_free_rx_ring(sc, ring);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
|
|
{
|
|
ring->cur = 0;
|
|
}
|
|
|
|
static void
|
|
iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
|
|
{
|
|
struct iwi_rx_data *data;
|
|
int i;
|
|
|
|
if (ring->data != NULL) {
|
|
for (i = 0; i < ring->count; i++) {
|
|
data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(ring->data_dmat, data->map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(ring->data_dmat, data->map);
|
|
m_freem(data->m);
|
|
}
|
|
|
|
if (data->map != NULL)
|
|
bus_dmamap_destroy(ring->data_dmat, data->map);
|
|
}
|
|
|
|
free(ring->data, M_DEVBUF);
|
|
}
|
|
|
|
if (ring->data_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->data_dmat);
|
|
}
|
|
|
|
static int
|
|
iwi_shutdown(device_t dev)
|
|
{
|
|
struct iwi_softc *sc = device_get_softc(dev);
|
|
|
|
iwi_stop(sc);
|
|
iwi_put_firmware(sc); /* ??? XXX */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iwi_suspend(device_t dev)
|
|
{
|
|
struct iwi_softc *sc = device_get_softc(dev);
|
|
|
|
iwi_stop(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iwi_resume(device_t dev)
|
|
{
|
|
struct iwi_softc *sc = device_get_softc(dev);
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
pci_write_config(dev, 0x41, 0, 1);
|
|
|
|
if (ifp->if_flags & IFF_UP)
|
|
iwi_init(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ieee80211_node *
|
|
iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
|
|
{
|
|
struct iwi_node *in;
|
|
|
|
in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
|
|
if (in == NULL)
|
|
return NULL;
|
|
/* XXX assign sta table entry for adhoc */
|
|
in->in_station = -1;
|
|
|
|
return &in->in_node;
|
|
}
|
|
|
|
static void
|
|
iwi_node_free(struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct iwi_softc *sc = ic->ic_ifp->if_softc;
|
|
struct iwi_node *in = (struct iwi_node *)ni;
|
|
|
|
if (in->in_station != -1) {
|
|
DPRINTF(("%s mac %6D station %u\n", __func__,
|
|
ni->ni_macaddr, ":", in->in_station));
|
|
free_unr(sc->sc_unr, in->in_station);
|
|
}
|
|
|
|
sc->sc_node_free(ni);
|
|
}
|
|
|
|
/*
|
|
* Convert h/w rate code to IEEE rate code.
|
|
*/
|
|
static int
|
|
iwi_cvtrate(int iwirate)
|
|
{
|
|
switch (iwirate) {
|
|
case IWI_RATE_DS1: return 2;
|
|
case IWI_RATE_DS2: return 4;
|
|
case IWI_RATE_DS5: return 11;
|
|
case IWI_RATE_DS11: return 22;
|
|
case IWI_RATE_OFDM6: return 12;
|
|
case IWI_RATE_OFDM9: return 18;
|
|
case IWI_RATE_OFDM12: return 24;
|
|
case IWI_RATE_OFDM18: return 36;
|
|
case IWI_RATE_OFDM24: return 48;
|
|
case IWI_RATE_OFDM36: return 72;
|
|
case IWI_RATE_OFDM48: return 96;
|
|
case IWI_RATE_OFDM54: return 108;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The firmware automatically adapts the transmit speed. We report its current
|
|
* value here.
|
|
*/
|
|
static void
|
|
iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
|
|
{
|
|
struct ieee80211vap *vap = ifp->if_softc;
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
struct iwi_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
/* read current transmission rate from adapter */
|
|
vap->iv_bss->ni_txrate =
|
|
iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE));
|
|
ieee80211_media_status(ifp, imr);
|
|
}
|
|
|
|
static int
|
|
iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct iwi_vap *ivp = IWI_VAP(vap);
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
IWI_LOCK_DECL;
|
|
|
|
DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
|
|
ieee80211_state_name[vap->iv_state],
|
|
ieee80211_state_name[nstate], sc->flags));
|
|
|
|
IEEE80211_UNLOCK(ic);
|
|
IWI_LOCK(sc);
|
|
switch (nstate) {
|
|
case IEEE80211_S_INIT:
|
|
/*
|
|
* NB: don't try to do this if iwi_stop_master has
|
|
* shutdown the firmware and disabled interrupts.
|
|
*/
|
|
if (vap->iv_state == IEEE80211_S_RUN &&
|
|
(sc->flags & IWI_FLAG_FW_INITED))
|
|
iwi_disassociate(sc, 0);
|
|
break;
|
|
case IEEE80211_S_AUTH:
|
|
iwi_auth_and_assoc(sc, vap);
|
|
break;
|
|
case IEEE80211_S_RUN:
|
|
if (vap->iv_opmode == IEEE80211_M_IBSS &&
|
|
vap->iv_state == IEEE80211_S_SCAN) {
|
|
/*
|
|
* XXX when joining an ibss network we are called
|
|
* with a SCAN -> RUN transition on scan complete.
|
|
* Use that to call iwi_auth_and_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.
|
|
*/
|
|
iwi_auth_and_assoc(sc, vap);
|
|
}
|
|
break;
|
|
case IEEE80211_S_ASSOC:
|
|
/*
|
|
* If we are transitioning from AUTH then just wait
|
|
* for the ASSOC status to come back from the firmware.
|
|
* Otherwise we need to issue the association request.
|
|
*/
|
|
if (vap->iv_state == IEEE80211_S_AUTH)
|
|
break;
|
|
iwi_auth_and_assoc(sc, vap);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
IWI_UNLOCK(sc);
|
|
IEEE80211_LOCK(ic);
|
|
return ivp->iwi_newstate(vap, nstate, arg);
|
|
}
|
|
|
|
/*
|
|
* WME parameters coming from IEEE 802.11e specification. These values are
|
|
* already declared in ieee80211_proto.c, but they are static so they can't
|
|
* be reused here.
|
|
*/
|
|
static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = {
|
|
{ 0, 3, 5, 7, 0 }, /* WME_AC_BE */
|
|
{ 0, 3, 5, 10, 0 }, /* WME_AC_BK */
|
|
{ 0, 2, 4, 5, 188 }, /* WME_AC_VI */
|
|
{ 0, 2, 3, 4, 102 } /* WME_AC_VO */
|
|
};
|
|
|
|
static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = {
|
|
{ 0, 3, 4, 6, 0 }, /* WME_AC_BE */
|
|
{ 0, 3, 4, 10, 0 }, /* WME_AC_BK */
|
|
{ 0, 2, 3, 4, 94 }, /* WME_AC_VI */
|
|
{ 0, 2, 2, 3, 47 } /* WME_AC_VO */
|
|
};
|
|
#define IWI_EXP2(v) htole16((1 << (v)) - 1)
|
|
#define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
|
|
|
|
static void
|
|
iwi_wme_init(struct iwi_softc *sc)
|
|
{
|
|
const struct wmeParams *wmep;
|
|
int ac;
|
|
|
|
memset(sc->wme, 0, sizeof sc->wme);
|
|
for (ac = 0; ac < WME_NUM_AC; ac++) {
|
|
/* set WME values for CCK modulation */
|
|
wmep = &iwi_wme_cck_params[ac];
|
|
sc->wme[1].aifsn[ac] = wmep->wmep_aifsn;
|
|
sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
|
|
sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
|
|
sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
|
|
sc->wme[1].acm[ac] = wmep->wmep_acm;
|
|
|
|
/* set WME values for OFDM modulation */
|
|
wmep = &iwi_wme_ofdm_params[ac];
|
|
sc->wme[2].aifsn[ac] = wmep->wmep_aifsn;
|
|
sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
|
|
sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
|
|
sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
|
|
sc->wme[2].acm[ac] = wmep->wmep_acm;
|
|
}
|
|
}
|
|
|
|
static int
|
|
iwi_wme_setparams(struct iwi_softc *sc, struct ieee80211com *ic)
|
|
{
|
|
const struct wmeParams *wmep;
|
|
int ac;
|
|
|
|
for (ac = 0; ac < WME_NUM_AC; ac++) {
|
|
/* set WME values for current operating mode */
|
|
wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
|
|
sc->wme[0].aifsn[ac] = wmep->wmep_aifsn;
|
|
sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
|
|
sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
|
|
sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
|
|
sc->wme[0].acm[ac] = wmep->wmep_acm;
|
|
}
|
|
|
|
DPRINTF(("Setting WME parameters\n"));
|
|
return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme);
|
|
}
|
|
#undef IWI_USEC
|
|
#undef IWI_EXP2
|
|
|
|
static void
|
|
iwi_update_wme(void *arg, int npending)
|
|
{
|
|
struct ieee80211com *ic = arg;
|
|
struct iwi_softc *sc = ic->ic_ifp->if_softc;
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
(void) iwi_wme_setparams(sc, ic);
|
|
IWI_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
iwi_wme_update(struct ieee80211com *ic)
|
|
{
|
|
struct iwi_softc *sc = ic->ic_ifp->if_softc;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
|
|
/*
|
|
* We may be called to update the WME parameters in
|
|
* the adapter at various places. If we're already
|
|
* associated then initiate the request immediately;
|
|
* otherwise we assume the params will get sent down
|
|
* to the adapter as part of the work iwi_auth_and_assoc
|
|
* does.
|
|
*/
|
|
if (vap->iv_state == IEEE80211_S_RUN)
|
|
ieee80211_runtask(ic, &sc->sc_wmetask);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
iwi_wme_setie(struct iwi_softc *sc)
|
|
{
|
|
struct ieee80211_wme_info wme;
|
|
|
|
memset(&wme, 0, sizeof wme);
|
|
wme.wme_id = IEEE80211_ELEMID_VENDOR;
|
|
wme.wme_len = sizeof (struct ieee80211_wme_info) - 2;
|
|
wme.wme_oui[0] = 0x00;
|
|
wme.wme_oui[1] = 0x50;
|
|
wme.wme_oui[2] = 0xf2;
|
|
wme.wme_type = WME_OUI_TYPE;
|
|
wme.wme_subtype = WME_INFO_OUI_SUBTYPE;
|
|
wme.wme_version = WME_VERSION;
|
|
wme.wme_info = 0;
|
|
|
|
DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len));
|
|
return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme);
|
|
}
|
|
|
|
/*
|
|
* Read 16 bits at address 'addr' from the serial EEPROM.
|
|
*/
|
|
static uint16_t
|
|
iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr)
|
|
{
|
|
uint32_t tmp;
|
|
uint16_t val;
|
|
int n;
|
|
|
|
/* clock C once before the first command */
|
|
IWI_EEPROM_CTL(sc, 0);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
|
|
|
|
/* write start bit (1) */
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
|
|
|
|
/* write READ opcode (10) */
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
|
|
|
|
/* write address A7-A0 */
|
|
for (n = 7; n >= 0; n--) {
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
|
|
(((addr >> n) & 1) << IWI_EEPROM_SHIFT_D));
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
|
|
(((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C);
|
|
}
|
|
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
|
|
|
|
/* read data Q15-Q0 */
|
|
val = 0;
|
|
for (n = 15; n >= 0; n--) {
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
|
|
tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL);
|
|
val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n;
|
|
}
|
|
|
|
IWI_EEPROM_CTL(sc, 0);
|
|
|
|
/* clear Chip Select and clock C */
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
|
|
IWI_EEPROM_CTL(sc, 0);
|
|
IWI_EEPROM_CTL(sc, IWI_EEPROM_C);
|
|
|
|
return val;
|
|
}
|
|
|
|
static void
|
|
iwi_setcurchan(struct iwi_softc *sc, int chan)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
sc->curchan = chan;
|
|
ieee80211_radiotap_chan_change(ic);
|
|
}
|
|
|
|
static void
|
|
iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i,
|
|
struct iwi_frame *frame)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct mbuf *mnew, *m;
|
|
struct ieee80211_node *ni;
|
|
int type, error, framelen;
|
|
int8_t rssi, nf;
|
|
IWI_LOCK_DECL;
|
|
|
|
framelen = le16toh(frame->len);
|
|
if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) {
|
|
/*
|
|
* XXX >MCLBYTES is bogus as it means the h/w dma'd
|
|
* out of bounds; need to figure out how to limit
|
|
* frame size in the firmware
|
|
*/
|
|
/* XXX stat */
|
|
DPRINTFN(1,
|
|
("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
|
|
le16toh(frame->len), frame->chan, frame->rssi,
|
|
frame->rssi_dbm));
|
|
return;
|
|
}
|
|
|
|
DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
|
|
le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm));
|
|
|
|
if (frame->chan != sc->curchan)
|
|
iwi_setcurchan(sc, frame->chan);
|
|
|
|
/*
|
|
* 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_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (mnew == NULL) {
|
|
ifp->if_ierrors++;
|
|
return;
|
|
}
|
|
|
|
bus_dmamap_unload(sc->rxq.data_dmat, data->map);
|
|
|
|
error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
|
|
mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr,
|
|
0);
|
|
if (error != 0) {
|
|
m_freem(mnew);
|
|
|
|
/* try to reload the old mbuf */
|
|
error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
|
|
mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
|
|
&data->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));
|
|
}
|
|
ifp->if_ierrors++;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* New mbuf successfully loaded, update Rx ring and continue
|
|
* processing.
|
|
*/
|
|
m = data->m;
|
|
data->m = mnew;
|
|
CSR_WRITE_4(sc, data->reg, data->physaddr);
|
|
|
|
/* finalize mbuf */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) +
|
|
sizeof (struct iwi_frame) + framelen;
|
|
|
|
m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame));
|
|
|
|
rssi = frame->rssi_dbm;
|
|
nf = -95;
|
|
if (ieee80211_radiotap_active(ic)) {
|
|
struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap;
|
|
|
|
tap->wr_flags = 0;
|
|
tap->wr_antsignal = rssi;
|
|
tap->wr_antnoise = nf;
|
|
tap->wr_rate = iwi_cvtrate(frame->rate);
|
|
tap->wr_antenna = frame->antenna;
|
|
}
|
|
IWI_UNLOCK(sc);
|
|
|
|
ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
|
|
if (ni != NULL) {
|
|
type = ieee80211_input(ni, m, rssi, nf);
|
|
ieee80211_free_node(ni);
|
|
} else
|
|
type = ieee80211_input_all(ic, m, rssi, nf);
|
|
|
|
IWI_LOCK(sc);
|
|
if (sc->sc_softled) {
|
|
/*
|
|
* Blink for any data frame. Otherwise do a
|
|
* heartbeat-style blink when idle. The latter
|
|
* is mainly for station mode where we depend on
|
|
* periodic beacon frames to trigger the poll event.
|
|
*/
|
|
if (type == IEEE80211_FC0_TYPE_DATA) {
|
|
sc->sc_rxrate = frame->rate;
|
|
iwi_led_event(sc, IWI_LED_RX);
|
|
} else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
|
|
iwi_led_event(sc, IWI_LED_POLL);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Check for an association response frame to see if QoS
|
|
* has been negotiated. We parse just enough to figure
|
|
* out if we're supposed to use QoS. The proper solution
|
|
* is to pass the frame up so ieee80211_input can do the
|
|
* work but that's made hard by how things currently are
|
|
* done in the driver.
|
|
*/
|
|
static void
|
|
iwi_checkforqos(struct ieee80211vap *vap,
|
|
const struct ieee80211_frame *wh, int len)
|
|
{
|
|
#define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK)
|
|
const uint8_t *frm, *efrm, *wme;
|
|
struct ieee80211_node *ni;
|
|
uint16_t capinfo, status, associd;
|
|
|
|
/* NB: +8 for capinfo, status, associd, and first ie */
|
|
if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) ||
|
|
SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP)
|
|
return;
|
|
/*
|
|
* asresp frame format
|
|
* [2] capability information
|
|
* [2] status
|
|
* [2] association ID
|
|
* [tlv] supported rates
|
|
* [tlv] extended supported rates
|
|
* [tlv] WME
|
|
*/
|
|
frm = (const uint8_t *)&wh[1];
|
|
efrm = ((const uint8_t *) wh) + len;
|
|
|
|
capinfo = le16toh(*(const uint16_t *)frm);
|
|
frm += 2;
|
|
status = le16toh(*(const uint16_t *)frm);
|
|
frm += 2;
|
|
associd = le16toh(*(const uint16_t *)frm);
|
|
frm += 2;
|
|
|
|
wme = NULL;
|
|
while (frm < efrm) {
|
|
IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1], return);
|
|
switch (*frm) {
|
|
case IEEE80211_ELEMID_VENDOR:
|
|
if (iswmeoui(frm))
|
|
wme = frm;
|
|
break;
|
|
}
|
|
frm += frm[1] + 2;
|
|
}
|
|
|
|
ni = vap->iv_bss;
|
|
ni->ni_capinfo = capinfo;
|
|
ni->ni_associd = associd;
|
|
if (wme != NULL)
|
|
ni->ni_flags |= IEEE80211_NODE_QOS;
|
|
else
|
|
ni->ni_flags &= ~IEEE80211_NODE_QOS;
|
|
#undef SUBTYPE
|
|
}
|
|
|
|
/*
|
|
* Task queue callbacks for iwi_notification_intr used to avoid LOR's.
|
|
*/
|
|
|
|
static void
|
|
iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
struct iwi_notif_scan_channel *chan;
|
|
struct iwi_notif_scan_complete *scan;
|
|
struct iwi_notif_authentication *auth;
|
|
struct iwi_notif_association *assoc;
|
|
struct iwi_notif_beacon_state *beacon;
|
|
|
|
switch (notif->type) {
|
|
case IWI_NOTIF_TYPE_SCAN_CHANNEL:
|
|
chan = (struct iwi_notif_scan_channel *)(notif + 1);
|
|
|
|
DPRINTFN(3, ("Scan of channel %u complete (%u)\n",
|
|
ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan));
|
|
|
|
/* Reset the timer, the scan is still going */
|
|
sc->sc_state_timer = 3;
|
|
break;
|
|
|
|
case IWI_NOTIF_TYPE_SCAN_COMPLETE:
|
|
scan = (struct iwi_notif_scan_complete *)(notif + 1);
|
|
|
|
DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan,
|
|
scan->status));
|
|
|
|
IWI_STATE_END(sc, IWI_FW_SCANNING);
|
|
|
|
if (scan->status == IWI_SCAN_COMPLETED) {
|
|
/* NB: don't need to defer, net80211 does it for us */
|
|
ieee80211_scan_next(vap);
|
|
}
|
|
break;
|
|
|
|
case IWI_NOTIF_TYPE_AUTHENTICATION:
|
|
auth = (struct iwi_notif_authentication *)(notif + 1);
|
|
switch (auth->state) {
|
|
case IWI_AUTH_SUCCESS:
|
|
DPRINTFN(2, ("Authentication succeeeded\n"));
|
|
ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1);
|
|
break;
|
|
case IWI_AUTH_FAIL:
|
|
/*
|
|
* These are delivered as an unsolicited deauth
|
|
* (e.g. due to inactivity) or in response to an
|
|
* associate request.
|
|
*/
|
|
sc->flags &= ~IWI_FLAG_ASSOCIATED;
|
|
if (vap->iv_state != IEEE80211_S_RUN) {
|
|
DPRINTFN(2, ("Authentication failed\n"));
|
|
vap->iv_stats.is_rx_auth_fail++;
|
|
IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
|
|
} else {
|
|
DPRINTFN(2, ("Deauthenticated\n"));
|
|
vap->iv_stats.is_rx_deauth++;
|
|
}
|
|
ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
|
|
break;
|
|
case IWI_AUTH_SENT_1:
|
|
case IWI_AUTH_RECV_2:
|
|
case IWI_AUTH_SEQ1_PASS:
|
|
break;
|
|
case IWI_AUTH_SEQ1_FAIL:
|
|
DPRINTFN(2, ("Initial authentication handshake failed; "
|
|
"you probably need shared key\n"));
|
|
vap->iv_stats.is_rx_auth_fail++;
|
|
IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
|
|
/* XXX retry shared key when in auto */
|
|
break;
|
|
default:
|
|
device_printf(sc->sc_dev,
|
|
"unknown authentication state %u\n", auth->state);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case IWI_NOTIF_TYPE_ASSOCIATION:
|
|
assoc = (struct iwi_notif_association *)(notif + 1);
|
|
switch (assoc->state) {
|
|
case IWI_AUTH_SUCCESS:
|
|
/* re-association, do nothing */
|
|
break;
|
|
case IWI_ASSOC_SUCCESS:
|
|
DPRINTFN(2, ("Association succeeded\n"));
|
|
sc->flags |= IWI_FLAG_ASSOCIATED;
|
|
IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
|
|
iwi_checkforqos(vap,
|
|
(const struct ieee80211_frame *)(assoc+1),
|
|
le16toh(notif->len) - sizeof(*assoc));
|
|
ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
|
|
break;
|
|
case IWI_ASSOC_INIT:
|
|
sc->flags &= ~IWI_FLAG_ASSOCIATED;
|
|
switch (sc->fw_state) {
|
|
case IWI_FW_ASSOCIATING:
|
|
DPRINTFN(2, ("Association failed\n"));
|
|
IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
|
|
ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
|
|
break;
|
|
|
|
case IWI_FW_DISASSOCIATING:
|
|
DPRINTFN(2, ("Dissassociated\n"));
|
|
IWI_STATE_END(sc, IWI_FW_DISASSOCIATING);
|
|
vap->iv_stats.is_rx_disassoc++;
|
|
ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
device_printf(sc->sc_dev,
|
|
"unknown association state %u\n", assoc->state);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case IWI_NOTIF_TYPE_BEACON:
|
|
/* XXX check struct length */
|
|
beacon = (struct iwi_notif_beacon_state *)(notif + 1);
|
|
|
|
DPRINTFN(5, ("Beacon state (%u, %u)\n",
|
|
beacon->state, le32toh(beacon->number)));
|
|
|
|
if (beacon->state == IWI_BEACON_MISS) {
|
|
/*
|
|
* The firmware notifies us of every beacon miss
|
|
* so we need to track the count against the
|
|
* configured threshold before notifying the
|
|
* 802.11 layer.
|
|
* XXX try to roam, drop assoc only on much higher count
|
|
*/
|
|
if (le32toh(beacon->number) >= vap->iv_bmissthreshold) {
|
|
DPRINTF(("Beacon miss: %u >= %u\n",
|
|
le32toh(beacon->number),
|
|
vap->iv_bmissthreshold));
|
|
vap->iv_stats.is_beacon_miss++;
|
|
/*
|
|
* It's pointless to notify the 802.11 layer
|
|
* as it'll try to send a probe request (which
|
|
* we'll discard) and then timeout and drop us
|
|
* into scan state. Instead tell the firmware
|
|
* to disassociate and then on completion we'll
|
|
* kick the state machine to scan.
|
|
*/
|
|
ieee80211_runtask(ic, &sc->sc_disassoctask);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case IWI_NOTIF_TYPE_CALIBRATION:
|
|
case IWI_NOTIF_TYPE_NOISE:
|
|
case IWI_NOTIF_TYPE_LINK_QUALITY:
|
|
DPRINTFN(5, ("Notification (%u)\n", notif->type));
|
|
break;
|
|
|
|
default:
|
|
DPRINTF(("unknown notification type %u flags 0x%x len %u\n",
|
|
notif->type, notif->flags, le16toh(notif->len)));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
iwi_rx_intr(struct iwi_softc *sc)
|
|
{
|
|
struct iwi_rx_data *data;
|
|
struct iwi_hdr *hdr;
|
|
uint32_t hw;
|
|
|
|
hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX);
|
|
|
|
for (; sc->rxq.cur != hw;) {
|
|
data = &sc->rxq.data[sc->rxq.cur];
|
|
|
|
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
hdr = mtod(data->m, struct iwi_hdr *);
|
|
|
|
switch (hdr->type) {
|
|
case IWI_HDR_TYPE_FRAME:
|
|
iwi_frame_intr(sc, data, sc->rxq.cur,
|
|
(struct iwi_frame *)(hdr + 1));
|
|
break;
|
|
|
|
case IWI_HDR_TYPE_NOTIF:
|
|
iwi_notification_intr(sc,
|
|
(struct iwi_notif *)(hdr + 1));
|
|
break;
|
|
|
|
default:
|
|
device_printf(sc->sc_dev, "unknown hdr type %u\n",
|
|
hdr->type);
|
|
}
|
|
|
|
DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
|
|
|
|
sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT;
|
|
}
|
|
|
|
/* tell the firmware what we have processed */
|
|
hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1;
|
|
CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw);
|
|
}
|
|
|
|
static void
|
|
iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct iwi_tx_data *data;
|
|
uint32_t hw;
|
|
|
|
hw = CSR_READ_4(sc, txq->csr_ridx);
|
|
|
|
for (; txq->next != hw;) {
|
|
data = &txq->data[txq->next];
|
|
|
|
bus_dmamap_sync(txq->data_dmat, data->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(txq->data_dmat, data->map);
|
|
if (data->m->m_flags & M_TXCB)
|
|
ieee80211_process_callback(data->ni, data->m, 0/*XXX*/);
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
|
|
DPRINTFN(15, ("tx done idx=%u\n", txq->next));
|
|
|
|
ifp->if_opackets++;
|
|
|
|
txq->queued--;
|
|
txq->next = (txq->next + 1) % IWI_TX_RING_COUNT;
|
|
}
|
|
|
|
sc->sc_tx_timer = 0;
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
|
|
if (sc->sc_softled)
|
|
iwi_led_event(sc, IWI_LED_TX);
|
|
|
|
iwi_start_locked(ifp);
|
|
}
|
|
|
|
static void
|
|
iwi_fatal_error_intr(struct iwi_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
|
|
device_printf(sc->sc_dev, "firmware error\n");
|
|
if (vap != NULL)
|
|
ieee80211_cancel_scan(vap);
|
|
ieee80211_runtask(ic, &sc->sc_restarttask);
|
|
|
|
sc->flags &= ~IWI_FLAG_BUSY;
|
|
sc->sc_busy_timer = 0;
|
|
wakeup(sc);
|
|
}
|
|
|
|
static void
|
|
iwi_radio_off_intr(struct iwi_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
ieee80211_runtask(ic, &sc->sc_radiofftask);
|
|
}
|
|
|
|
static void
|
|
iwi_intr(void *arg)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
uint32_t r;
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
|
|
if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) {
|
|
IWI_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/* acknowledge interrupts */
|
|
CSR_WRITE_4(sc, IWI_CSR_INTR, r);
|
|
|
|
if (r & IWI_INTR_FATAL_ERROR) {
|
|
iwi_fatal_error_intr(sc);
|
|
goto done;
|
|
}
|
|
|
|
if (r & IWI_INTR_FW_INITED) {
|
|
if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)))
|
|
wakeup(sc);
|
|
}
|
|
|
|
if (r & IWI_INTR_RADIO_OFF)
|
|
iwi_radio_off_intr(sc);
|
|
|
|
if (r & IWI_INTR_CMD_DONE) {
|
|
sc->flags &= ~IWI_FLAG_BUSY;
|
|
sc->sc_busy_timer = 0;
|
|
wakeup(sc);
|
|
}
|
|
|
|
if (r & IWI_INTR_TX1_DONE)
|
|
iwi_tx_intr(sc, &sc->txq[0]);
|
|
|
|
if (r & IWI_INTR_TX2_DONE)
|
|
iwi_tx_intr(sc, &sc->txq[1]);
|
|
|
|
if (r & IWI_INTR_TX3_DONE)
|
|
iwi_tx_intr(sc, &sc->txq[2]);
|
|
|
|
if (r & IWI_INTR_TX4_DONE)
|
|
iwi_tx_intr(sc, &sc->txq[3]);
|
|
|
|
if (r & IWI_INTR_RX_DONE)
|
|
iwi_rx_intr(sc);
|
|
|
|
if (r & IWI_INTR_PARITY_ERROR) {
|
|
/* XXX rate-limit */
|
|
device_printf(sc->sc_dev, "parity error\n");
|
|
}
|
|
done:
|
|
IWI_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len)
|
|
{
|
|
struct iwi_cmd_desc *desc;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
if (sc->flags & IWI_FLAG_BUSY) {
|
|
device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
|
|
__func__, type);
|
|
return EAGAIN;
|
|
}
|
|
sc->flags |= IWI_FLAG_BUSY;
|
|
sc->sc_busy_timer = 2;
|
|
|
|
desc = &sc->cmdq.desc[sc->cmdq.cur];
|
|
|
|
desc->hdr.type = IWI_HDR_TYPE_COMMAND;
|
|
desc->hdr.flags = IWI_HDR_FLAG_IRQ;
|
|
desc->type = type;
|
|
desc->len = len;
|
|
memcpy(desc->data, data, len);
|
|
|
|
bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur,
|
|
type, len));
|
|
|
|
sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT;
|
|
CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
|
|
|
|
return msleep(sc, &sc->sc_mtx, 0, "iwicmd", hz);
|
|
}
|
|
|
|
static void
|
|
iwi_write_ibssnode(struct iwi_softc *sc,
|
|
const u_int8_t addr[IEEE80211_ADDR_LEN], int entry)
|
|
{
|
|
struct iwi_ibssnode node;
|
|
|
|
/* write node information into NIC memory */
|
|
memset(&node, 0, sizeof node);
|
|
IEEE80211_ADDR_COPY(node.bssid, addr);
|
|
|
|
DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry));
|
|
|
|
CSR_WRITE_REGION_1(sc,
|
|
IWI_CSR_NODE_BASE + entry * sizeof node,
|
|
(uint8_t *)&node, sizeof node);
|
|
}
|
|
|
|
static int
|
|
iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni,
|
|
int ac)
|
|
{
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct iwi_node *in = (struct iwi_node *)ni;
|
|
const struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
const struct chanAccParams *cap;
|
|
struct iwi_tx_ring *txq = &sc->txq[ac];
|
|
struct iwi_tx_data *data;
|
|
struct iwi_tx_desc *desc;
|
|
struct mbuf *mnew;
|
|
bus_dma_segment_t segs[IWI_MAX_NSEG];
|
|
int error, nsegs, hdrlen, i;
|
|
int ismcast, flags, xflags, staid;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
wh = mtod(m0, const struct ieee80211_frame *);
|
|
/* NB: only data frames use this path */
|
|
hdrlen = ieee80211_hdrsize(wh);
|
|
ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
|
|
flags = xflags = 0;
|
|
|
|
if (!ismcast)
|
|
flags |= IWI_DATA_FLAG_NEED_ACK;
|
|
if (vap->iv_flags & IEEE80211_F_SHPREAMBLE)
|
|
flags |= IWI_DATA_FLAG_SHPREAMBLE;
|
|
if (IEEE80211_QOS_HAS_SEQ(wh)) {
|
|
xflags |= IWI_DATA_XFLAG_QOS;
|
|
cap = &ic->ic_wme.wme_chanParams;
|
|
if (!cap->cap_wmeParams[ac].wmep_noackPolicy)
|
|
flags &= ~IWI_DATA_FLAG_NEED_ACK;
|
|
}
|
|
|
|
/*
|
|
* This is only used in IBSS mode where the firmware expect an index
|
|
* in a h/w table instead of a destination address.
|
|
*/
|
|
if (vap->iv_opmode == IEEE80211_M_IBSS) {
|
|
if (!ismcast) {
|
|
if (in->in_station == -1) {
|
|
in->in_station = alloc_unr(sc->sc_unr);
|
|
if (in->in_station == -1) {
|
|
/* h/w table is full */
|
|
m_freem(m0);
|
|
ieee80211_free_node(ni);
|
|
ifp->if_oerrors++;
|
|
return 0;
|
|
}
|
|
iwi_write_ibssnode(sc,
|
|
ni->ni_macaddr, in->in_station);
|
|
}
|
|
staid = in->in_station;
|
|
} else {
|
|
/*
|
|
* Multicast addresses have no associated node
|
|
* so there will be no station entry. We reserve
|
|
* entry 0 for one mcast address and use that.
|
|
* If there are many being used this will be
|
|
* expensive and we'll need to do a better job
|
|
* but for now this handles the broadcast case.
|
|
*/
|
|
if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) {
|
|
IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1);
|
|
iwi_write_ibssnode(sc, sc->sc_mcast, 0);
|
|
}
|
|
staid = 0;
|
|
}
|
|
} else
|
|
staid = 0;
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
|
|
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 iwi_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
|
|
ieee80211_radiotap_tx(vap, m0);
|
|
}
|
|
|
|
data = &txq->data[txq->cur];
|
|
desc = &txq->desc[txq->cur];
|
|
|
|
/* save and trim IEEE802.11 header */
|
|
m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh);
|
|
m_adj(m0, hdrlen);
|
|
|
|
error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->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_DONTWAIT);
|
|
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(txq->data_dmat, data->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;
|
|
}
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
desc->hdr.type = IWI_HDR_TYPE_DATA;
|
|
desc->hdr.flags = IWI_HDR_FLAG_IRQ;
|
|
desc->station = staid;
|
|
desc->cmd = IWI_DATA_CMD_TX;
|
|
desc->len = htole16(m0->m_pkthdr.len);
|
|
desc->flags = flags;
|
|
desc->xflags = xflags;
|
|
|
|
#if 0
|
|
if (vap->iv_flags & IEEE80211_F_PRIVACY)
|
|
desc->wep_txkey = vap->iv_def_txkey;
|
|
else
|
|
#endif
|
|
desc->flags |= IWI_DATA_FLAG_NO_WEP;
|
|
|
|
desc->nseg = htole32(nsegs);
|
|
for (i = 0; i < nsegs; i++) {
|
|
desc->seg_addr[i] = htole32(segs[i].ds_addr);
|
|
desc->seg_len[i] = htole16(segs[i].ds_len);
|
|
}
|
|
|
|
bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n",
|
|
ac, txq->cur, le16toh(desc->len), nsegs));
|
|
|
|
txq->queued++;
|
|
txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT;
|
|
CSR_WRITE_4(sc, txq->csr_widx, txq->cur);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iwi_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 void
|
|
iwi_start_locked(struct ifnet *ifp)
|
|
{
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
struct mbuf *m;
|
|
struct ieee80211_node *ni;
|
|
int ac;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
|
|
return;
|
|
|
|
for (;;) {
|
|
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
|
|
if (m == NULL)
|
|
break;
|
|
ac = M_WME_GETAC(m);
|
|
if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) {
|
|
/* there is no place left in this ring; tail drop */
|
|
/* XXX tail drop */
|
|
IFQ_DRV_PREPEND(&ifp->if_snd, m);
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
break;
|
|
}
|
|
|
|
ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
|
|
if (iwi_tx_start(ifp, m, ni, ac) != 0) {
|
|
ieee80211_free_node(ni);
|
|
ifp->if_oerrors++;
|
|
break;
|
|
}
|
|
|
|
sc->sc_tx_timer = 5;
|
|
}
|
|
}
|
|
|
|
static void
|
|
iwi_start(struct ifnet *ifp)
|
|
{
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
iwi_start_locked(ifp);
|
|
IWI_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
iwi_watchdog(void *arg)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
if (sc->sc_tx_timer > 0) {
|
|
if (--sc->sc_tx_timer == 0) {
|
|
if_printf(ifp, "device timeout\n");
|
|
ifp->if_oerrors++;
|
|
ieee80211_runtask(ic, &sc->sc_restarttask);
|
|
}
|
|
}
|
|
if (sc->sc_state_timer > 0) {
|
|
if (--sc->sc_state_timer == 0) {
|
|
if_printf(ifp, "firmware stuck in state %d, resetting\n",
|
|
sc->fw_state);
|
|
if (sc->fw_state == IWI_FW_SCANNING) {
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps));
|
|
}
|
|
ieee80211_runtask(ic, &sc->sc_restarttask);
|
|
sc->sc_state_timer = 3;
|
|
}
|
|
}
|
|
if (sc->sc_busy_timer > 0) {
|
|
if (--sc->sc_busy_timer == 0) {
|
|
if_printf(ifp, "firmware command timeout, resetting\n");
|
|
ieee80211_runtask(ic, &sc->sc_restarttask);
|
|
}
|
|
}
|
|
callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc);
|
|
}
|
|
|
|
static int
|
|
iwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct ifreq *ifr = (struct ifreq *) data;
|
|
int error = 0, startall = 0;
|
|
IWI_LOCK_DECL;
|
|
|
|
switch (cmd) {
|
|
case SIOCSIFFLAGS:
|
|
IWI_LOCK(sc);
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
|
iwi_init_locked(sc);
|
|
startall = 1;
|
|
}
|
|
} else {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
iwi_stop_locked(sc);
|
|
}
|
|
IWI_UNLOCK(sc);
|
|
if (startall)
|
|
ieee80211_start_all(ic);
|
|
break;
|
|
case SIOCGIFMEDIA:
|
|
error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
|
|
break;
|
|
case SIOCGIFADDR:
|
|
error = ether_ioctl(ifp, cmd, data);
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
iwi_stop_master(struct iwi_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
/* disable interrupts */
|
|
CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER);
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
if (ntries == 5)
|
|
device_printf(sc->sc_dev, "timeout waiting for master\n");
|
|
|
|
tmp = CSR_READ_4(sc, IWI_CSR_RST);
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET);
|
|
|
|
sc->flags &= ~IWI_FLAG_FW_INITED;
|
|
}
|
|
|
|
static int
|
|
iwi_reset(struct iwi_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
int i, ntries;
|
|
|
|
iwi_stop_master(sc);
|
|
|
|
tmp = CSR_READ_4(sc, IWI_CSR_CTL);
|
|
CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST);
|
|
|
|
/* wait for clock stabilization */
|
|
for (ntries = 0; ntries < 1000; ntries++) {
|
|
if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY)
|
|
break;
|
|
DELAY(200);
|
|
}
|
|
if (ntries == 1000) {
|
|
device_printf(sc->sc_dev,
|
|
"timeout waiting for clock stabilization\n");
|
|
return EIO;
|
|
}
|
|
|
|
tmp = CSR_READ_4(sc, IWI_CSR_RST);
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET);
|
|
|
|
DELAY(10);
|
|
|
|
tmp = CSR_READ_4(sc, IWI_CSR_CTL);
|
|
CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
|
|
|
|
/* clear NIC memory */
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0);
|
|
for (i = 0; i < 0xc000; i++)
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct iwi_firmware_ohdr *
|
|
iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw)
|
|
{
|
|
const struct firmware *fp = fw->fp;
|
|
const struct iwi_firmware_ohdr *hdr;
|
|
|
|
if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) {
|
|
device_printf(sc->sc_dev, "image '%s' too small\n", fp->name);
|
|
return NULL;
|
|
}
|
|
hdr = (const struct iwi_firmware_ohdr *)fp->data;
|
|
if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) ||
|
|
(IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) {
|
|
device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n",
|
|
fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)),
|
|
IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR,
|
|
IWI_FW_REQ_MINOR);
|
|
return NULL;
|
|
}
|
|
fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr);
|
|
fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr);
|
|
fw->name = fp->name;
|
|
return hdr;
|
|
}
|
|
|
|
static const struct iwi_firmware_ohdr *
|
|
iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw)
|
|
{
|
|
const struct iwi_firmware_ohdr *hdr;
|
|
|
|
hdr = iwi_setup_ofw(sc, fw);
|
|
if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) {
|
|
device_printf(sc->sc_dev, "%s is not a ucode image\n",
|
|
fw->name);
|
|
hdr = NULL;
|
|
}
|
|
return hdr;
|
|
}
|
|
|
|
static void
|
|
iwi_getfw(struct iwi_fw *fw, const char *fwname,
|
|
struct iwi_fw *uc, const char *ucname)
|
|
{
|
|
if (fw->fp == NULL)
|
|
fw->fp = firmware_get(fwname);
|
|
/* NB: pre-3.0 ucode is packaged separately */
|
|
if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300)
|
|
uc->fp = firmware_get(ucname);
|
|
}
|
|
|
|
/*
|
|
* Get the required firmware images if not already loaded.
|
|
* Note that we hold firmware images so long as the device
|
|
* is marked up in case we need to reload them on device init.
|
|
* This is necessary because we re-init the device sometimes
|
|
* from a context where we cannot read from the filesystem
|
|
* (e.g. from the taskqueue thread when rfkill is re-enabled).
|
|
* XXX return 0 on success, 1 on error.
|
|
*
|
|
* NB: the order of get'ing and put'ing images here is
|
|
* intentional to support handling firmware images bundled
|
|
* by operating mode and/or all together in one file with
|
|
* the boot firmware as "master".
|
|
*/
|
|
static int
|
|
iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode)
|
|
{
|
|
const struct iwi_firmware_hdr *hdr;
|
|
const struct firmware *fp;
|
|
|
|
/* invalidate cached firmware on mode change */
|
|
if (sc->fw_mode != opmode)
|
|
iwi_put_firmware(sc);
|
|
|
|
switch (opmode) {
|
|
case IEEE80211_M_STA:
|
|
iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss");
|
|
break;
|
|
case IEEE80211_M_IBSS:
|
|
iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss");
|
|
break;
|
|
case IEEE80211_M_MONITOR:
|
|
iwi_getfw(&sc->fw_fw, "iwi_monitor",
|
|
&sc->fw_uc, "iwi_ucode_monitor");
|
|
break;
|
|
default:
|
|
device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
|
|
return EINVAL;
|
|
}
|
|
fp = sc->fw_fw.fp;
|
|
if (fp == NULL) {
|
|
device_printf(sc->sc_dev, "could not load firmware\n");
|
|
goto bad;
|
|
}
|
|
if (fp->version < 300) {
|
|
/*
|
|
* Firmware prior to 3.0 was packaged as separate
|
|
* boot, firmware, and ucode images. Verify the
|
|
* ucode image was read in, retrieve the boot image
|
|
* if needed, and check version stamps for consistency.
|
|
* The version stamps in the data are also checked
|
|
* above; this is a bit paranoid but is a cheap
|
|
* safeguard against mis-packaging.
|
|
*/
|
|
if (sc->fw_uc.fp == NULL) {
|
|
device_printf(sc->sc_dev, "could not load ucode\n");
|
|
goto bad;
|
|
}
|
|
if (sc->fw_boot.fp == NULL) {
|
|
sc->fw_boot.fp = firmware_get("iwi_boot");
|
|
if (sc->fw_boot.fp == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not load boot firmware\n");
|
|
goto bad;
|
|
}
|
|
}
|
|
if (sc->fw_boot.fp->version != sc->fw_fw.fp->version ||
|
|
sc->fw_boot.fp->version != sc->fw_uc.fp->version) {
|
|
device_printf(sc->sc_dev,
|
|
"firmware version mismatch: "
|
|
"'%s' is %d, '%s' is %d, '%s' is %d\n",
|
|
sc->fw_boot.fp->name, sc->fw_boot.fp->version,
|
|
sc->fw_uc.fp->name, sc->fw_uc.fp->version,
|
|
sc->fw_fw.fp->name, sc->fw_fw.fp->version
|
|
);
|
|
goto bad;
|
|
}
|
|
/*
|
|
* Check and setup each image.
|
|
*/
|
|
if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL ||
|
|
iwi_setup_ofw(sc, &sc->fw_boot) == NULL ||
|
|
iwi_setup_ofw(sc, &sc->fw_fw) == NULL)
|
|
goto bad;
|
|
} else {
|
|
/*
|
|
* Check and setup combined image.
|
|
*/
|
|
if (fp->datasize < sizeof(struct iwi_firmware_hdr)) {
|
|
device_printf(sc->sc_dev, "image '%s' too small\n",
|
|
fp->name);
|
|
goto bad;
|
|
}
|
|
hdr = (const struct iwi_firmware_hdr *)fp->data;
|
|
if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize)
|
|
+ le32toh(hdr->fsize)) {
|
|
device_printf(sc->sc_dev, "image '%s' too small (2)\n",
|
|
fp->name);
|
|
goto bad;
|
|
}
|
|
sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr);
|
|
sc->fw_boot.size = le32toh(hdr->bsize);
|
|
sc->fw_boot.name = fp->name;
|
|
sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size;
|
|
sc->fw_uc.size = le32toh(hdr->usize);
|
|
sc->fw_uc.name = fp->name;
|
|
sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size;
|
|
sc->fw_fw.size = le32toh(hdr->fsize);
|
|
sc->fw_fw.name = fp->name;
|
|
}
|
|
#if 0
|
|
device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n",
|
|
sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size);
|
|
#endif
|
|
|
|
sc->fw_mode = opmode;
|
|
return 0;
|
|
bad:
|
|
iwi_put_firmware(sc);
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
iwi_put_fw(struct iwi_fw *fw)
|
|
{
|
|
if (fw->fp != NULL) {
|
|
firmware_put(fw->fp, FIRMWARE_UNLOAD);
|
|
fw->fp = NULL;
|
|
}
|
|
fw->data = NULL;
|
|
fw->size = 0;
|
|
fw->name = NULL;
|
|
}
|
|
|
|
/*
|
|
* Release any cached firmware images.
|
|
*/
|
|
static void
|
|
iwi_put_firmware(struct iwi_softc *sc)
|
|
{
|
|
iwi_put_fw(&sc->fw_uc);
|
|
iwi_put_fw(&sc->fw_fw);
|
|
iwi_put_fw(&sc->fw_boot);
|
|
}
|
|
|
|
static int
|
|
iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw)
|
|
{
|
|
uint32_t tmp;
|
|
const uint16_t *w;
|
|
const char *uc = fw->data;
|
|
size_t size = fw->size;
|
|
int i, ntries, error;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
error = 0;
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
|
|
IWI_RST_STOP_MASTER);
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
if (ntries == 5) {
|
|
device_printf(sc->sc_dev, "timeout waiting for master\n");
|
|
error = EIO;
|
|
goto fail;
|
|
}
|
|
|
|
MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
|
|
DELAY(5000);
|
|
|
|
tmp = CSR_READ_4(sc, IWI_CSR_RST);
|
|
tmp &= ~IWI_RST_PRINCETON_RESET;
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
|
|
|
|
DELAY(5000);
|
|
MEM_WRITE_4(sc, 0x3000e0, 0);
|
|
DELAY(1000);
|
|
MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1);
|
|
DELAY(1000);
|
|
MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0);
|
|
DELAY(1000);
|
|
MEM_WRITE_1(sc, 0x200000, 0x00);
|
|
MEM_WRITE_1(sc, 0x200000, 0x40);
|
|
DELAY(1000);
|
|
|
|
/* write microcode into adapter memory */
|
|
for (w = (const uint16_t *)uc; size > 0; w++, size -= 2)
|
|
MEM_WRITE_2(sc, 0x200010, htole16(*w));
|
|
|
|
MEM_WRITE_1(sc, 0x200000, 0x00);
|
|
MEM_WRITE_1(sc, 0x200000, 0x80);
|
|
|
|
/* wait until we get an answer */
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (MEM_READ_1(sc, 0x200000) & 1)
|
|
break;
|
|
DELAY(100);
|
|
}
|
|
if (ntries == 100) {
|
|
device_printf(sc->sc_dev,
|
|
"timeout waiting for ucode to initialize\n");
|
|
error = EIO;
|
|
goto fail;
|
|
}
|
|
|
|
/* read the answer or the firmware will not initialize properly */
|
|
for (i = 0; i < 7; i++)
|
|
MEM_READ_4(sc, 0x200004);
|
|
|
|
MEM_WRITE_1(sc, 0x200000, 0x00);
|
|
|
|
fail:
|
|
return error;
|
|
}
|
|
|
|
/* macro to handle unaligned little endian data in firmware image */
|
|
#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
|
|
|
|
static int
|
|
iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw)
|
|
{
|
|
u_char *p, *end;
|
|
uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp;
|
|
int ntries, error;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
/* copy firmware image to DMA memory */
|
|
memcpy(sc->fw_virtaddr, fw->data, fw->size);
|
|
|
|
/* make sure the adapter will get up-to-date values */
|
|
bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
/* tell the adapter where the command blocks are stored */
|
|
MEM_WRITE_4(sc, 0x3000a0, 0x27000);
|
|
|
|
/*
|
|
* Store command blocks into adapter's internal memory using register
|
|
* indirections. The adapter will read the firmware image through DMA
|
|
* using information stored in command blocks.
|
|
*/
|
|
src = sc->fw_physaddr;
|
|
p = sc->fw_virtaddr;
|
|
end = p + fw->size;
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000);
|
|
|
|
while (p < end) {
|
|
dst = GETLE32(p); p += 4; src += 4;
|
|
len = GETLE32(p); p += 4; src += 4;
|
|
p += len;
|
|
|
|
while (len > 0) {
|
|
mlen = min(len, IWI_CB_MAXDATALEN);
|
|
|
|
ctl = IWI_CB_DEFAULT_CTL | mlen;
|
|
sum = ctl ^ src ^ dst;
|
|
|
|
/* write a command block */
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl);
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src);
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst);
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum);
|
|
|
|
src += mlen;
|
|
dst += mlen;
|
|
len -= mlen;
|
|
}
|
|
}
|
|
|
|
/* write a fictive final command block (sentinel) */
|
|
sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR);
|
|
CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
|
|
|
|
tmp = CSR_READ_4(sc, IWI_CSR_RST);
|
|
tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER);
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
|
|
|
|
/* tell the adapter to start processing command blocks */
|
|
MEM_WRITE_4(sc, 0x3000a4, 0x540100);
|
|
|
|
/* wait until the adapter reaches the sentinel */
|
|
for (ntries = 0; ntries < 400; ntries++) {
|
|
if (MEM_READ_4(sc, 0x3000d0) >= sentinel)
|
|
break;
|
|
DELAY(100);
|
|
}
|
|
/* sync dma, just in case */
|
|
bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE);
|
|
if (ntries == 400) {
|
|
device_printf(sc->sc_dev,
|
|
"timeout processing command blocks for %s firmware\n",
|
|
fw->name);
|
|
return EIO;
|
|
}
|
|
|
|
/* we're done with command blocks processing */
|
|
MEM_WRITE_4(sc, 0x3000a4, 0x540c00);
|
|
|
|
/* allow interrupts so we know when the firmware is ready */
|
|
CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK);
|
|
|
|
/* tell the adapter to initialize the firmware */
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, 0);
|
|
|
|
tmp = CSR_READ_4(sc, IWI_CSR_CTL);
|
|
CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY);
|
|
|
|
/* wait at most one second for firmware initialization to complete */
|
|
if ((error = msleep(sc, &sc->sc_mtx, 0, "iwiinit", hz)) != 0) {
|
|
device_printf(sc->sc_dev, "timeout waiting for %s firmware "
|
|
"initialization to complete\n", fw->name);
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap)
|
|
{
|
|
uint32_t data;
|
|
|
|
if (vap->iv_flags & IEEE80211_F_PMGTON) {
|
|
/* XXX set more fine-grained operation */
|
|
data = htole32(IWI_POWER_MODE_MAX);
|
|
} else
|
|
data = htole32(IWI_POWER_MODE_CAM);
|
|
|
|
DPRINTF(("Setting power mode to %u\n", le32toh(data)));
|
|
return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data);
|
|
}
|
|
|
|
static int
|
|
iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap)
|
|
{
|
|
struct iwi_wep_key wepkey;
|
|
struct ieee80211_key *wk;
|
|
int error, i;
|
|
|
|
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
|
|
wk = &vap->iv_nw_keys[i];
|
|
|
|
wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY;
|
|
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 = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey,
|
|
sizeof wepkey);
|
|
if (error != 0)
|
|
return error;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iwi_config(struct iwi_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct iwi_configuration config;
|
|
struct iwi_rateset rs;
|
|
struct iwi_txpower power;
|
|
uint32_t data;
|
|
int error, i;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
DPRINTF(("Setting MAC address to %6D\n", IF_LLADDR(ifp), ":"));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp),
|
|
IEEE80211_ADDR_LEN);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
memset(&config, 0, sizeof config);
|
|
config.bluetooth_coexistence = sc->bluetooth;
|
|
config.silence_threshold = 0x1e;
|
|
config.antenna = sc->antenna;
|
|
config.multicast_enabled = 1;
|
|
config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
|
|
config.disable_unicast_decryption = 1;
|
|
config.disable_multicast_decryption = 1;
|
|
DPRINTF(("Configuring adapter\n"));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
|
|
if (error != 0)
|
|
return error;
|
|
if (ic->ic_opmode == IEEE80211_M_IBSS) {
|
|
power.mode = IWI_MODE_11B;
|
|
power.nchan = 11;
|
|
for (i = 0; i < 11; i++) {
|
|
power.chan[i].chan = i + 1;
|
|
power.chan[i].power = IWI_TXPOWER_MAX;
|
|
}
|
|
DPRINTF(("Setting .11b channels tx power\n"));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
power.mode = IWI_MODE_11G;
|
|
DPRINTF(("Setting .11g channels tx power\n"));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
|
|
if (error != 0)
|
|
return error;
|
|
}
|
|
|
|
memset(&rs, 0, sizeof rs);
|
|
rs.mode = IWI_MODE_11G;
|
|
rs.type = IWI_RATESET_TYPE_SUPPORTED;
|
|
rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates;
|
|
memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates,
|
|
rs.nrates);
|
|
DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
memset(&rs, 0, sizeof rs);
|
|
rs.mode = IWI_MODE_11A;
|
|
rs.type = IWI_RATESET_TYPE_SUPPORTED;
|
|
rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates;
|
|
memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates,
|
|
rs.nrates);
|
|
DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
data = htole32(arc4random());
|
|
DPRINTF(("Setting initialization vector to %u\n", le32toh(data)));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
/* enable adapter */
|
|
DPRINTF(("Enabling adapter\n"));
|
|
return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0);
|
|
}
|
|
|
|
static __inline void
|
|
set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type)
|
|
{
|
|
uint8_t *st = &scan->scan_type[ix / 2];
|
|
if (ix % 2)
|
|
*st = (*st & 0xf0) | ((scan_type & 0xf) << 0);
|
|
else
|
|
*st = (*st & 0x0f) | ((scan_type & 0xf) << 4);
|
|
}
|
|
|
|
static int
|
|
scan_type(const struct ieee80211_scan_state *ss,
|
|
const struct ieee80211_channel *chan)
|
|
{
|
|
/* We can only set one essid for a directed scan */
|
|
if (ss->ss_nssid != 0)
|
|
return IWI_SCAN_TYPE_BDIRECTED;
|
|
if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) &&
|
|
(chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0)
|
|
return IWI_SCAN_TYPE_BROADCAST;
|
|
return IWI_SCAN_TYPE_PASSIVE;
|
|
}
|
|
|
|
static __inline int
|
|
scan_band(const struct ieee80211_channel *c)
|
|
{
|
|
return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ;
|
|
}
|
|
|
|
/*
|
|
* Start a scan on the current channel or all channels.
|
|
*/
|
|
static int
|
|
iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan)
|
|
{
|
|
struct ieee80211com *ic;
|
|
struct ieee80211_channel *chan;
|
|
struct ieee80211_scan_state *ss;
|
|
struct iwi_scan_ext scan;
|
|
int error = 0;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
if (sc->fw_state == IWI_FW_SCANNING) {
|
|
/*
|
|
* This should not happen as we only trigger scan_next after
|
|
* completion
|
|
*/
|
|
DPRINTF(("%s: called too early - still scanning\n", __func__));
|
|
return (EBUSY);
|
|
}
|
|
IWI_STATE_BEGIN(sc, IWI_FW_SCANNING);
|
|
|
|
ic = sc->sc_ifp->if_l2com;
|
|
ss = ic->ic_scan;
|
|
|
|
memset(&scan, 0, sizeof scan);
|
|
scan.full_scan_index = htole32(++sc->sc_scangen);
|
|
scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell);
|
|
if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
|
|
/*
|
|
* Use very short dwell times for when we send probe request
|
|
* frames. Without this bg scans hang. Ideally this should
|
|
* be handled with early-termination as done by net80211 but
|
|
* that's not feasible (aborting a scan is problematic).
|
|
*/
|
|
scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30);
|
|
scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30);
|
|
} else {
|
|
scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell);
|
|
scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell);
|
|
}
|
|
|
|
/* We can only set one essid for a directed scan */
|
|
if (ss->ss_nssid != 0) {
|
|
error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid,
|
|
ss->ss_ssid[0].len);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
|
|
if (allchan) {
|
|
int i, next, band, b, bstart;
|
|
/*
|
|
* Convert scan list to run-length encoded channel list
|
|
* the firmware requires (preserving the order setup by
|
|
* net80211). The first entry in each run specifies the
|
|
* band and the count of items in the run.
|
|
*/
|
|
next = 0; /* next open slot */
|
|
bstart = 0; /* NB: not needed, silence compiler */
|
|
band = -1; /* NB: impossible value */
|
|
KASSERT(ss->ss_last > 0, ("no channels"));
|
|
for (i = 0; i < ss->ss_last; i++) {
|
|
chan = ss->ss_chans[i];
|
|
b = scan_band(chan);
|
|
if (b != band) {
|
|
if (band != -1)
|
|
scan.channels[bstart] =
|
|
(next - bstart) | band;
|
|
/* NB: this allocates a slot for the run-len */
|
|
band = b, bstart = next++;
|
|
}
|
|
if (next >= IWI_SCAN_CHANNELS) {
|
|
DPRINTF(("truncating scan list\n"));
|
|
break;
|
|
}
|
|
scan.channels[next] = ieee80211_chan2ieee(ic, chan);
|
|
set_scan_type(&scan, next, scan_type(ss, chan));
|
|
next++;
|
|
}
|
|
scan.channels[bstart] = (next - bstart) | band;
|
|
} else {
|
|
/* Scan the current channel only */
|
|
chan = ic->ic_curchan;
|
|
scan.channels[0] = 1 | scan_band(chan);
|
|
scan.channels[1] = ieee80211_chan2ieee(ic, chan);
|
|
set_scan_type(&scan, 1, scan_type(ss, chan));
|
|
}
|
|
#ifdef IWI_DEBUG
|
|
if (iwi_debug > 0) {
|
|
static const char *scantype[8] =
|
|
{ "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" };
|
|
int i;
|
|
printf("Scan request: index %u dwell %d/%d/%d\n"
|
|
, le32toh(scan.full_scan_index)
|
|
, le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE])
|
|
, le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST])
|
|
, le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED])
|
|
);
|
|
i = 0;
|
|
do {
|
|
int run = scan.channels[i];
|
|
if (run == 0)
|
|
break;
|
|
printf("Scan %d %s channels:", run & 0x3f,
|
|
run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz");
|
|
for (run &= 0x3f, i++; run > 0; run--, i++) {
|
|
uint8_t type = scan.scan_type[i/2];
|
|
printf(" %u/%s", scan.channels[i],
|
|
scantype[(i & 1 ? type : type>>4) & 7]);
|
|
}
|
|
printf("\n");
|
|
} while (i < IWI_SCAN_CHANNELS);
|
|
}
|
|
#endif
|
|
|
|
return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan));
|
|
}
|
|
|
|
static int
|
|
iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm)
|
|
{
|
|
struct iwi_sensitivity sens;
|
|
|
|
DPRINTF(("Setting sensitivity to %d\n", rssi_dbm));
|
|
|
|
memset(&sens, 0, sizeof sens);
|
|
sens.rssi = htole16(rssi_dbm);
|
|
return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens);
|
|
}
|
|
|
|
static int
|
|
iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap)
|
|
{
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
struct ifnet *ifp = vap->iv_ifp;
|
|
struct ieee80211_node *ni = vap->iv_bss;
|
|
struct iwi_configuration config;
|
|
struct iwi_associate *assoc = &sc->assoc;
|
|
struct iwi_rateset rs;
|
|
uint16_t capinfo;
|
|
uint32_t data;
|
|
int error, mode;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
if (sc->flags & IWI_FLAG_ASSOCIATED) {
|
|
DPRINTF(("Already associated\n"));
|
|
return (-1);
|
|
}
|
|
|
|
IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING);
|
|
error = 0;
|
|
mode = 0;
|
|
|
|
if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
|
|
mode = IWI_MODE_11A;
|
|
else if (IEEE80211_IS_CHAN_G(ic->ic_curchan))
|
|
mode = IWI_MODE_11G;
|
|
if (IEEE80211_IS_CHAN_B(ic->ic_curchan))
|
|
mode = IWI_MODE_11B;
|
|
|
|
if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
|
|
memset(&config, 0, sizeof config);
|
|
config.bluetooth_coexistence = sc->bluetooth;
|
|
config.antenna = sc->antenna;
|
|
config.multicast_enabled = 1;
|
|
if (mode == IWI_MODE_11G)
|
|
config.use_protection = 1;
|
|
config.answer_pbreq =
|
|
(vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0;
|
|
config.disable_unicast_decryption = 1;
|
|
config.disable_multicast_decryption = 1;
|
|
DPRINTF(("Configuring adapter\n"));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
|
|
if (error != 0)
|
|
goto done;
|
|
}
|
|
|
|
#ifdef IWI_DEBUG
|
|
if (iwi_debug > 0) {
|
|
printf("Setting ESSID to ");
|
|
ieee80211_print_essid(ni->ni_essid, ni->ni_esslen);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
error = iwi_setpowermode(sc, vap);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
data = htole32(vap->iv_rtsthreshold);
|
|
DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
data = htole32(vap->iv_fragthreshold);
|
|
DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data)));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
/* the rate set has already been "negotiated" */
|
|
memset(&rs, 0, sizeof rs);
|
|
rs.mode = mode;
|
|
rs.type = IWI_RATESET_TYPE_NEGOTIATED;
|
|
rs.nrates = ni->ni_rates.rs_nrates;
|
|
if (rs.nrates > IWI_RATESET_SIZE) {
|
|
DPRINTF(("Truncating negotiated rate set from %u\n",
|
|
rs.nrates));
|
|
rs.nrates = IWI_RATESET_SIZE;
|
|
}
|
|
memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates);
|
|
DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
memset(assoc, 0, sizeof *assoc);
|
|
|
|
if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) {
|
|
/* NB: don't treat WME setup as failure */
|
|
if (iwi_wme_setparams(sc, ic) == 0 && iwi_wme_setie(sc) == 0)
|
|
assoc->policy |= htole16(IWI_POLICY_WME);
|
|
/* XXX complain on failure? */
|
|
}
|
|
|
|
if (vap->iv_appie_wpa != NULL) {
|
|
struct ieee80211_appie *ie = vap->iv_appie_wpa;
|
|
|
|
DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len));
|
|
error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len);
|
|
if (error != 0)
|
|
goto done;
|
|
}
|
|
|
|
error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni));
|
|
if (error != 0)
|
|
goto done;
|
|
|
|
assoc->mode = mode;
|
|
assoc->chan = ic->ic_curchan->ic_ieee;
|
|
/*
|
|
* NB: do not arrange for shared key auth w/o privacy
|
|
* (i.e. a wep key); it causes a firmware error.
|
|
*/
|
|
if ((vap->iv_flags & IEEE80211_F_PRIVACY) &&
|
|
ni->ni_authmode == IEEE80211_AUTH_SHARED) {
|
|
assoc->auth = IWI_AUTH_SHARED;
|
|
/*
|
|
* It's possible to have privacy marked but no default
|
|
* key setup. This typically is due to a user app bug
|
|
* but if we blindly grab the key the firmware will
|
|
* barf so avoid it for now.
|
|
*/
|
|
if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE)
|
|
assoc->auth |= vap->iv_def_txkey << 4;
|
|
|
|
error = iwi_setwepkeys(sc, vap);
|
|
if (error != 0)
|
|
goto done;
|
|
}
|
|
if (vap->iv_flags & IEEE80211_F_WPA)
|
|
assoc->policy |= htole16(IWI_POLICY_WPA);
|
|
if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0)
|
|
assoc->type = IWI_HC_IBSS_START;
|
|
else
|
|
assoc->type = IWI_HC_ASSOC;
|
|
memcpy(assoc->tstamp, ni->ni_tstamp.data, 8);
|
|
|
|
if (vap->iv_opmode == IEEE80211_M_IBSS)
|
|
capinfo = IEEE80211_CAPINFO_IBSS;
|
|
else
|
|
capinfo = IEEE80211_CAPINFO_ESS;
|
|
if (vap->iv_flags & IEEE80211_F_PRIVACY)
|
|
capinfo |= IEEE80211_CAPINFO_PRIVACY;
|
|
if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
|
|
IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
|
|
capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
|
|
if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME)
|
|
capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
|
|
assoc->capinfo = htole16(capinfo);
|
|
|
|
assoc->lintval = htole16(ic->ic_lintval);
|
|
assoc->intval = htole16(ni->ni_intval);
|
|
IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid);
|
|
if (vap->iv_opmode == IEEE80211_M_IBSS)
|
|
IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr);
|
|
else
|
|
IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid);
|
|
|
|
DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x "
|
|
"auth %u capinfo 0x%x lintval %u bintval %u\n",
|
|
assoc->type == IWI_HC_IBSS_START ? "Start" : "Join",
|
|
assoc->bssid, ":", assoc->dst, ":",
|
|
assoc->chan, le16toh(assoc->policy), assoc->auth,
|
|
le16toh(assoc->capinfo), le16toh(assoc->lintval),
|
|
le16toh(assoc->intval)));
|
|
error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
|
|
done:
|
|
if (error)
|
|
IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
iwi_disassoc(void *arg, int pending)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
iwi_disassociate(sc, 0);
|
|
IWI_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
iwi_disassociate(struct iwi_softc *sc, int quiet)
|
|
{
|
|
struct iwi_associate *assoc = &sc->assoc;
|
|
|
|
if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) {
|
|
DPRINTF(("Not associated\n"));
|
|
return (-1);
|
|
}
|
|
|
|
IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING);
|
|
|
|
if (quiet)
|
|
assoc->type = IWI_HC_DISASSOC_QUIET;
|
|
else
|
|
assoc->type = IWI_HC_DISASSOC;
|
|
|
|
DPRINTF(("Trying to disassociate from %6D channel %u\n",
|
|
assoc->bssid, ":", assoc->chan));
|
|
return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
|
|
}
|
|
|
|
/*
|
|
* release dma resources for the firmware
|
|
*/
|
|
static void
|
|
iwi_release_fw_dma(struct iwi_softc *sc)
|
|
{
|
|
if (sc->fw_flags & IWI_FW_HAVE_PHY)
|
|
bus_dmamap_unload(sc->fw_dmat, sc->fw_map);
|
|
if (sc->fw_flags & IWI_FW_HAVE_MAP)
|
|
bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map);
|
|
if (sc->fw_flags & IWI_FW_HAVE_DMAT)
|
|
bus_dma_tag_destroy(sc->fw_dmat);
|
|
|
|
sc->fw_flags = 0;
|
|
sc->fw_dma_size = 0;
|
|
sc->fw_dmat = NULL;
|
|
sc->fw_map = NULL;
|
|
sc->fw_physaddr = 0;
|
|
sc->fw_virtaddr = NULL;
|
|
}
|
|
|
|
/*
|
|
* allocate the dma descriptor for the firmware.
|
|
* Return 0 on success, 1 on error.
|
|
* Must be called unlocked, protected by IWI_FLAG_FW_LOADING.
|
|
*/
|
|
static int
|
|
iwi_init_fw_dma(struct iwi_softc *sc, int size)
|
|
{
|
|
if (sc->fw_dma_size >= size)
|
|
return 0;
|
|
if (bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
size, 1, size, 0, NULL, NULL, &sc->fw_dmat) != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not create firmware DMA tag\n");
|
|
goto error;
|
|
}
|
|
sc->fw_flags |= IWI_FW_HAVE_DMAT;
|
|
if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0,
|
|
&sc->fw_map) != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate firmware DMA memory\n");
|
|
goto error;
|
|
}
|
|
sc->fw_flags |= IWI_FW_HAVE_MAP;
|
|
if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr,
|
|
size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) {
|
|
device_printf(sc->sc_dev, "could not load firmware DMA map\n");
|
|
goto error;
|
|
}
|
|
sc->fw_flags |= IWI_FW_HAVE_PHY;
|
|
sc->fw_dma_size = size;
|
|
return 0;
|
|
|
|
error:
|
|
iwi_release_fw_dma(sc);
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
iwi_init_locked(struct iwi_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct iwi_rx_data *data;
|
|
int i;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
if (sc->fw_state == IWI_FW_LOADING) {
|
|
device_printf(sc->sc_dev, "%s: already loading\n", __func__);
|
|
return; /* XXX: condvar? */
|
|
}
|
|
|
|
iwi_stop_locked(sc);
|
|
|
|
IWI_STATE_BEGIN(sc, IWI_FW_LOADING);
|
|
|
|
if (iwi_reset(sc) != 0) {
|
|
device_printf(sc->sc_dev, "could not reset adapter\n");
|
|
goto fail;
|
|
}
|
|
if (iwi_load_firmware(sc, &sc->fw_boot) != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not load boot firmware %s\n", sc->fw_boot.name);
|
|
goto fail;
|
|
}
|
|
if (iwi_load_ucode(sc, &sc->fw_uc) != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not load microcode %s\n", sc->fw_uc.name);
|
|
goto fail;
|
|
}
|
|
|
|
iwi_stop_master(sc);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr);
|
|
CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count);
|
|
CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count);
|
|
CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur);
|
|
|
|
for (i = 0; i < sc->rxq.count; i++) {
|
|
data = &sc->rxq.data[i];
|
|
CSR_WRITE_4(sc, data->reg, data->physaddr);
|
|
}
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1);
|
|
|
|
if (iwi_load_firmware(sc, &sc->fw_fw) != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not load main firmware %s\n", sc->fw_fw.name);
|
|
goto fail;
|
|
}
|
|
sc->flags |= IWI_FLAG_FW_INITED;
|
|
|
|
IWI_STATE_END(sc, IWI_FW_LOADING);
|
|
|
|
if (iwi_config(sc) != 0) {
|
|
device_printf(sc->sc_dev, "unable to enable adapter\n");
|
|
goto fail2;
|
|
}
|
|
|
|
callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc);
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
return;
|
|
fail:
|
|
IWI_STATE_END(sc, IWI_FW_LOADING);
|
|
fail2:
|
|
iwi_stop_locked(sc);
|
|
}
|
|
|
|
static void
|
|
iwi_init(void *priv)
|
|
{
|
|
struct iwi_softc *sc = priv;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
iwi_init_locked(sc);
|
|
IWI_UNLOCK(sc);
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ieee80211_start_all(ic);
|
|
}
|
|
|
|
static void
|
|
iwi_stop_locked(void *priv)
|
|
{
|
|
struct iwi_softc *sc = priv;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
|
|
|
|
if (sc->sc_softled) {
|
|
callout_stop(&sc->sc_ledtimer);
|
|
sc->sc_blinking = 0;
|
|
}
|
|
callout_stop(&sc->sc_wdtimer);
|
|
callout_stop(&sc->sc_rftimer);
|
|
|
|
iwi_stop_master(sc);
|
|
|
|
CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET);
|
|
|
|
/* reset rings */
|
|
iwi_reset_cmd_ring(sc, &sc->cmdq);
|
|
iwi_reset_tx_ring(sc, &sc->txq[0]);
|
|
iwi_reset_tx_ring(sc, &sc->txq[1]);
|
|
iwi_reset_tx_ring(sc, &sc->txq[2]);
|
|
iwi_reset_tx_ring(sc, &sc->txq[3]);
|
|
iwi_reset_rx_ring(sc, &sc->rxq);
|
|
|
|
sc->sc_tx_timer = 0;
|
|
sc->sc_state_timer = 0;
|
|
sc->sc_busy_timer = 0;
|
|
sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED);
|
|
sc->fw_state = IWI_FW_IDLE;
|
|
wakeup(sc);
|
|
}
|
|
|
|
static void
|
|
iwi_stop(struct iwi_softc *sc)
|
|
{
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
iwi_stop_locked(sc);
|
|
IWI_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
iwi_restart(void *arg, int npending)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
|
|
iwi_init(sc);
|
|
}
|
|
|
|
/*
|
|
* Return whether or not the radio is enabled in hardware
|
|
* (i.e. the rfkill switch is "off").
|
|
*/
|
|
static int
|
|
iwi_getrfkill(struct iwi_softc *sc)
|
|
{
|
|
return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0;
|
|
}
|
|
|
|
static void
|
|
iwi_radio_on(void *arg, int pending)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
|
|
|
|
device_printf(sc->sc_dev, "radio turned on\n");
|
|
|
|
iwi_init(sc);
|
|
ieee80211_notify_radio(ic, 1);
|
|
}
|
|
|
|
static void
|
|
iwi_rfkill_poll(void *arg)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
|
|
IWI_LOCK_ASSERT(sc);
|
|
|
|
/*
|
|
* Check for a change in rfkill state. We get an
|
|
* interrupt when a radio is disabled but not when
|
|
* it is enabled so we must poll for the latter.
|
|
*/
|
|
if (!iwi_getrfkill(sc)) {
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
ieee80211_runtask(ic, &sc->sc_radiontask);
|
|
return;
|
|
}
|
|
callout_reset(&sc->sc_rftimer, 2*hz, iwi_rfkill_poll, sc);
|
|
}
|
|
|
|
static void
|
|
iwi_radio_off(void *arg, int pending)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
|
|
IWI_LOCK_DECL;
|
|
|
|
device_printf(sc->sc_dev, "radio turned off\n");
|
|
|
|
ieee80211_notify_radio(ic, 0);
|
|
|
|
IWI_LOCK(sc);
|
|
iwi_stop_locked(sc);
|
|
iwi_rfkill_poll(sc);
|
|
IWI_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
iwi_sysctl_stats(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct iwi_softc *sc = arg1;
|
|
uint32_t size, buf[128];
|
|
|
|
memset(buf, 0, sizeof buf);
|
|
|
|
if (!(sc->flags & IWI_FLAG_FW_INITED))
|
|
return SYSCTL_OUT(req, buf, sizeof buf);
|
|
|
|
size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1);
|
|
CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size);
|
|
|
|
return SYSCTL_OUT(req, buf, size);
|
|
}
|
|
|
|
static int
|
|
iwi_sysctl_radio(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct iwi_softc *sc = arg1;
|
|
int val = !iwi_getrfkill(sc);
|
|
|
|
return SYSCTL_OUT(req, &val, sizeof val);
|
|
}
|
|
|
|
/*
|
|
* Add sysctl knobs.
|
|
*/
|
|
static void
|
|
iwi_sysctlattach(struct iwi_softc *sc)
|
|
{
|
|
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
|
|
struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
|
|
|
|
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio",
|
|
CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I",
|
|
"radio transmitter switch state (0=off, 1=on)");
|
|
|
|
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats",
|
|
CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S",
|
|
"statistics");
|
|
|
|
sc->bluetooth = 0;
|
|
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth",
|
|
CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence");
|
|
|
|
sc->antenna = IWI_ANTENNA_AUTO;
|
|
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna",
|
|
CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)");
|
|
}
|
|
|
|
/*
|
|
* LED support.
|
|
*
|
|
* Different cards have different capabilities. Some have three
|
|
* led's while others have only one. The linux ipw driver defines
|
|
* led's for link state (associated or not), band (11a, 11g, 11b),
|
|
* and for link activity. We use one led and vary the blink rate
|
|
* according to the tx/rx traffic a la the ath driver.
|
|
*/
|
|
|
|
static __inline uint32_t
|
|
iwi_toggle_event(uint32_t r)
|
|
{
|
|
return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA |
|
|
IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA);
|
|
}
|
|
|
|
static uint32_t
|
|
iwi_read_event(struct iwi_softc *sc)
|
|
{
|
|
return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT);
|
|
}
|
|
|
|
static void
|
|
iwi_write_event(struct iwi_softc *sc, uint32_t v)
|
|
{
|
|
MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v);
|
|
}
|
|
|
|
static void
|
|
iwi_led_done(void *arg)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
|
|
sc->sc_blinking = 0;
|
|
}
|
|
|
|
/*
|
|
* Turn the activity LED off: flip the pin and then set a timer so no
|
|
* update will happen for the specified duration.
|
|
*/
|
|
static void
|
|
iwi_led_off(void *arg)
|
|
{
|
|
struct iwi_softc *sc = arg;
|
|
uint32_t v;
|
|
|
|
v = iwi_read_event(sc);
|
|
v &= ~sc->sc_ledpin;
|
|
iwi_write_event(sc, iwi_toggle_event(v));
|
|
callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, iwi_led_done, sc);
|
|
}
|
|
|
|
/*
|
|
* Blink the LED according to the specified on/off times.
|
|
*/
|
|
static void
|
|
iwi_led_blink(struct iwi_softc *sc, int on, int off)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = iwi_read_event(sc);
|
|
v |= sc->sc_ledpin;
|
|
iwi_write_event(sc, iwi_toggle_event(v));
|
|
sc->sc_blinking = 1;
|
|
sc->sc_ledoff = off;
|
|
callout_reset(&sc->sc_ledtimer, on, iwi_led_off, sc);
|
|
}
|
|
|
|
static void
|
|
iwi_led_event(struct iwi_softc *sc, int event)
|
|
{
|
|
#define N(a) (sizeof(a)/sizeof(a[0]))
|
|
/* NB: on/off times from the Atheros NDIS driver, w/ permission */
|
|
static const struct {
|
|
u_int rate; /* tx/rx iwi rate */
|
|
u_int16_t timeOn; /* LED on time (ms) */
|
|
u_int16_t timeOff; /* LED off time (ms) */
|
|
} blinkrates[] = {
|
|
{ IWI_RATE_OFDM54, 40, 10 },
|
|
{ IWI_RATE_OFDM48, 44, 11 },
|
|
{ IWI_RATE_OFDM36, 50, 13 },
|
|
{ IWI_RATE_OFDM24, 57, 14 },
|
|
{ IWI_RATE_OFDM18, 67, 16 },
|
|
{ IWI_RATE_OFDM12, 80, 20 },
|
|
{ IWI_RATE_DS11, 100, 25 },
|
|
{ IWI_RATE_OFDM9, 133, 34 },
|
|
{ IWI_RATE_OFDM6, 160, 40 },
|
|
{ IWI_RATE_DS5, 200, 50 },
|
|
{ 6, 240, 58 }, /* XXX 3Mb/s if it existed */
|
|
{ IWI_RATE_DS2, 267, 66 },
|
|
{ IWI_RATE_DS1, 400, 100 },
|
|
{ 0, 500, 130 }, /* unknown rate/polling */
|
|
};
|
|
uint32_t txrate;
|
|
int j = 0; /* XXX silence compiler */
|
|
|
|
sc->sc_ledevent = ticks; /* time of last event */
|
|
if (sc->sc_blinking) /* don't interrupt active blink */
|
|
return;
|
|
switch (event) {
|
|
case IWI_LED_POLL:
|
|
j = N(blinkrates)-1;
|
|
break;
|
|
case IWI_LED_TX:
|
|
/* read current transmission rate from adapter */
|
|
txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE);
|
|
if (blinkrates[sc->sc_txrix].rate != txrate) {
|
|
for (j = 0; j < N(blinkrates)-1; j++)
|
|
if (blinkrates[j].rate == txrate)
|
|
break;
|
|
sc->sc_txrix = j;
|
|
} else
|
|
j = sc->sc_txrix;
|
|
break;
|
|
case IWI_LED_RX:
|
|
if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) {
|
|
for (j = 0; j < N(blinkrates)-1; j++)
|
|
if (blinkrates[j].rate == sc->sc_rxrate)
|
|
break;
|
|
sc->sc_rxrix = j;
|
|
} else
|
|
j = sc->sc_rxrix;
|
|
break;
|
|
}
|
|
/* XXX beware of overflow */
|
|
iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000,
|
|
(blinkrates[j].timeOff * hz) / 1000);
|
|
#undef N
|
|
}
|
|
|
|
static int
|
|
iwi_sysctl_softled(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct iwi_softc *sc = arg1;
|
|
int softled = sc->sc_softled;
|
|
int error;
|
|
|
|
error = sysctl_handle_int(oidp, &softled, 0, req);
|
|
if (error || !req->newptr)
|
|
return error;
|
|
softled = (softled != 0);
|
|
if (softled != sc->sc_softled) {
|
|
if (softled) {
|
|
uint32_t v = iwi_read_event(sc);
|
|
v &= ~sc->sc_ledpin;
|
|
iwi_write_event(sc, iwi_toggle_event(v));
|
|
}
|
|
sc->sc_softled = softled;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
iwi_ledattach(struct iwi_softc *sc)
|
|
{
|
|
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
|
|
struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
|
|
|
|
sc->sc_blinking = 0;
|
|
sc->sc_ledstate = 1;
|
|
sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */
|
|
callout_init_mtx(&sc->sc_ledtimer, &sc->sc_mtx, 0);
|
|
|
|
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
|
|
"softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
|
|
iwi_sysctl_softled, "I", "enable/disable software LED support");
|
|
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
|
|
"ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0,
|
|
"pin setting to turn activity LED on");
|
|
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
|
|
"ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
|
|
"idle time for inactivity LED (ticks)");
|
|
/* XXX for debugging */
|
|
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
|
|
"nictype", CTLFLAG_RD, &sc->sc_nictype, 0,
|
|
"NIC type from EEPROM");
|
|
|
|
sc->sc_ledpin = IWI_RST_LED_ACTIVITY;
|
|
sc->sc_softled = 1;
|
|
|
|
sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff;
|
|
if (sc->sc_nictype == 1) {
|
|
/*
|
|
* NB: led's are reversed.
|
|
*/
|
|
sc->sc_ledpin = IWI_RST_LED_ASSOCIATED;
|
|
}
|
|
}
|
|
|
|
static void
|
|
iwi_scan_start(struct ieee80211com *ic)
|
|
{
|
|
/* ignore */
|
|
}
|
|
|
|
static void
|
|
iwi_set_channel(struct ieee80211com *ic)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
if (sc->fw_state == IWI_FW_IDLE)
|
|
iwi_setcurchan(sc, ic->ic_curchan->ic_ieee);
|
|
}
|
|
|
|
static void
|
|
iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
|
|
{
|
|
struct ieee80211vap *vap = ss->ss_vap;
|
|
struct ifnet *ifp = vap->iv_ic->ic_ifp;
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
if (iwi_scanchan(sc, maxdwell, 0))
|
|
ieee80211_cancel_scan(vap);
|
|
IWI_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
iwi_scan_mindwell(struct ieee80211_scan_state *ss)
|
|
{
|
|
/* NB: don't try to abort scan; wait for firmware to finish */
|
|
}
|
|
|
|
static void
|
|
iwi_scan_end(struct ieee80211com *ic)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct iwi_softc *sc = ifp->if_softc;
|
|
IWI_LOCK_DECL;
|
|
|
|
IWI_LOCK(sc);
|
|
sc->flags &= ~IWI_FLAG_CHANNEL_SCAN;
|
|
/* NB: make sure we're still scanning */
|
|
if (sc->fw_state == IWI_FW_SCANNING)
|
|
iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0);
|
|
IWI_UNLOCK(sc);
|
|
}
|