/* $OpenBSD: bwi.c,v 1.78 2008/08/22 19:58:21 deraadt Exp $ */ /* * Copyright (c) 2007 The DragonFly Project. All rights reserved. * * This code is derived from software contributed to The DragonFly Project * by Sepherosa Ziehau * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name of The DragonFly Project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific, prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $DragonFly: src/sys/dev/netif/bwi/bwimac.c,v 1.1 2007/09/08 06:15:54 sephe Exp $ */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #include #include #include #include #include #include #include #include #ifdef BWI_DEBUG int bwi_debug = 1; #define DPRINTF(l, x...) do { if ((l) <= bwi_debug) printf(x); } while (0) #else #define DPRINTF(l, x...) #endif /* XXX temporary porting goop */ #include #include #include /* XXX does not belong here */ #define IEEE80211_OFDM_PLCP_RATE_MASK 0x0000000f #define IEEE80211_OFDM_PLCP_LEN_MASK 0x0001ffe0 /* * Contention window (slots). */ #define IEEE80211_CW_MAX 1023 /* aCWmax */ #define IEEE80211_CW_MIN_0 31 /* DS/CCK aCWmin, ERP aCWmin(0) */ #define IEEE80211_CW_MIN_1 15 /* OFDM aCWmin, ERP aCWmin(1) */ #define __unused __attribute__((__unused__)) /* XXX end porting goop */ /* MAC */ struct bwi_retry_lim { uint16_t shretry; uint16_t shretry_fb; uint16_t lgretry; uint16_t lgretry_fb; }; struct bwi_clock_freq { uint clkfreq_min; uint clkfreq_max; }; /* XXX does not belong here */ struct ieee80211_ds_plcp_hdr { uint8_t i_signal; uint8_t i_service; uint16_t i_length; uint16_t i_crc; } __packed; /* MAC */ void bwi_tmplt_write_4(struct bwi_mac *, uint32_t, uint32_t); void bwi_hostflags_write(struct bwi_mac *, uint64_t); uint64_t bwi_hostflags_read(struct bwi_mac *); uint16_t bwi_memobj_read_2(struct bwi_mac *, uint16_t, uint16_t); uint32_t bwi_memobj_read_4(struct bwi_mac *, uint16_t, uint16_t); void bwi_memobj_write_2(struct bwi_mac *, uint16_t, uint16_t, uint16_t); void bwi_memobj_write_4(struct bwi_mac *, uint16_t, uint16_t, uint32_t); int bwi_mac_lateattach(struct bwi_mac *); int bwi_mac_init(struct bwi_mac *); void bwi_mac_reset(struct bwi_mac *, int); void bwi_mac_set_tpctl_11bg(struct bwi_mac *, const struct bwi_tpctl *); int bwi_mac_test(struct bwi_mac *); void bwi_mac_setup_tpctl(struct bwi_mac *); void bwi_mac_dummy_xmit(struct bwi_mac *); void bwi_mac_init_tpctl_11bg(struct bwi_mac *); void bwi_mac_detach(struct bwi_mac *); int bwi_get_firmware(const char *, const uint8_t *, size_t, size_t *, size_t *); int bwi_fwimage_is_valid(struct bwi_softc *, uint8_t *, size_t, char *, uint8_t); int bwi_mac_fw_alloc(struct bwi_mac *); void bwi_mac_fw_free(struct bwi_mac *); int bwi_mac_fw_load(struct bwi_mac *); int bwi_mac_gpio_init(struct bwi_mac *); int bwi_mac_gpio_fini(struct bwi_mac *); int bwi_mac_fw_load_iv(struct bwi_mac *, uint8_t *, size_t); int bwi_mac_fw_init(struct bwi_mac *); void bwi_mac_opmode_init(struct bwi_mac *); void bwi_mac_hostflags_init(struct bwi_mac *); void bwi_mac_bss_param_init(struct bwi_mac *); void bwi_mac_set_retry_lim(struct bwi_mac *, const struct bwi_retry_lim *); void bwi_mac_set_ackrates(struct bwi_mac *, const struct ieee80211_rateset *); int bwi_mac_start(struct bwi_mac *); int bwi_mac_stop(struct bwi_mac *); int bwi_mac_config_ps(struct bwi_mac *); void bwi_mac_reset_hwkeys(struct bwi_mac *); void bwi_mac_shutdown(struct bwi_mac *); int bwi_mac_get_property(struct bwi_mac *); void bwi_mac_updateslot(struct bwi_mac *, int); int bwi_mac_attach(struct bwi_softc *, int, uint8_t); void bwi_mac_balance_atten(int *, int *); void bwi_mac_adjust_tpctl(struct bwi_mac *, int, int); void bwi_mac_calibrate_txpower(struct bwi_mac *, enum bwi_txpwrcb_type); void bwi_mac_lock(struct bwi_mac *); void bwi_mac_unlock(struct bwi_mac *); void bwi_mac_set_promisc(struct bwi_mac *, int); /* PHY */ void bwi_phy_write(struct bwi_mac *, uint16_t, uint16_t); uint16_t bwi_phy_read(struct bwi_mac *, uint16_t); int bwi_phy_attach(struct bwi_mac *); void bwi_phy_set_bbp_atten(struct bwi_mac *, uint16_t); int bwi_phy_calibrate(struct bwi_mac *); void bwi_tbl_write_2(struct bwi_mac *mac, uint16_t, uint16_t); void bwi_tbl_write_4(struct bwi_mac *mac, uint16_t, uint32_t); void bwi_nrssi_write(struct bwi_mac *, uint16_t, int16_t); int16_t bwi_nrssi_read(struct bwi_mac *, uint16_t); void bwi_phy_init_11a(struct bwi_mac *); void bwi_phy_init_11g(struct bwi_mac *); void bwi_phy_init_11b_rev2(struct bwi_mac *); void bwi_phy_init_11b_rev4(struct bwi_mac *); void bwi_phy_init_11b_rev5(struct bwi_mac *); void bwi_phy_init_11b_rev6(struct bwi_mac *); void bwi_phy_config_11g(struct bwi_mac *); void bwi_phy_config_agc(struct bwi_mac *); void bwi_set_gains(struct bwi_mac *, const struct bwi_gains *); void bwi_phy_clear_state(struct bwi_phy *); /* RF */ int16_t bwi_nrssi_11g(struct bwi_mac *); struct bwi_rf_lo *bwi_get_rf_lo(struct bwi_mac *, uint16_t, uint16_t); int bwi_rf_lo_isused(struct bwi_mac *, const struct bwi_rf_lo *); void bwi_rf_write(struct bwi_mac *, uint16_t, uint16_t); uint16_t bwi_rf_read(struct bwi_mac *, uint16_t); int bwi_rf_attach(struct bwi_mac *); void bwi_rf_set_chan(struct bwi_mac *, uint, int); void bwi_rf_get_gains(struct bwi_mac *); void bwi_rf_init(struct bwi_mac *); void bwi_rf_off_11a(struct bwi_mac *); void bwi_rf_off_11bg(struct bwi_mac *); void bwi_rf_off_11g_rev5(struct bwi_mac *); void bwi_rf_workaround(struct bwi_mac *, uint); struct bwi_rf_lo *bwi_rf_lo_find(struct bwi_mac *, const struct bwi_tpctl *); void bwi_rf_lo_adjust(struct bwi_mac *, const struct bwi_tpctl *); void bwi_rf_lo_write(struct bwi_mac *, const struct bwi_rf_lo *); int bwi_rf_gain_max_reached(struct bwi_mac *, int); uint16_t bwi_bitswap4(uint16_t); uint16_t bwi_phy812_value(struct bwi_mac *, uint16_t); void bwi_rf_init_bcm2050(struct bwi_mac *); uint16_t bwi_rf_calibval(struct bwi_mac *); int32_t _bwi_adjust_devide(int32_t, int32_t); int bwi_rf_calc_txpower(int8_t *, uint8_t, const int16_t[]); int bwi_rf_map_txpower(struct bwi_mac *); void bwi_rf_lo_update_11g(struct bwi_mac *); uint32_t bwi_rf_lo_devi_measure(struct bwi_mac *, uint16_t); uint16_t bwi_rf_get_tp_ctrl2(struct bwi_mac *); uint8_t _bwi_rf_lo_update_11g(struct bwi_mac *, uint16_t); void bwi_rf_lo_measure_11g(struct bwi_mac *, const struct bwi_rf_lo *, struct bwi_rf_lo *, uint8_t); void bwi_rf_calc_nrssi_slope_11b(struct bwi_mac *); void bwi_rf_set_nrssi_ofs_11g(struct bwi_mac *); void bwi_rf_calc_nrssi_slope_11g(struct bwi_mac *); void bwi_rf_init_sw_nrssi_table(struct bwi_mac *); void bwi_rf_init_hw_nrssi_table(struct bwi_mac *, uint16_t); void bwi_rf_set_nrssi_thr_11b(struct bwi_mac *); int32_t _nrssi_threshold(const struct bwi_rf *, int32_t); void bwi_rf_set_nrssi_thr_11g(struct bwi_mac *); void bwi_rf_clear_tssi(struct bwi_mac *); void bwi_rf_clear_state(struct bwi_rf *); void bwi_rf_on_11a(struct bwi_mac *); void bwi_rf_on_11bg(struct bwi_mac *); void bwi_rf_set_ant_mode(struct bwi_mac *, int); int bwi_rf_get_latest_tssi(struct bwi_mac *, int8_t[], uint16_t); int bwi_rf_tssi2dbm(struct bwi_mac *, int8_t, int8_t *); int bwi_rf_calc_rssi_bcm2050(struct bwi_mac *, const struct bwi_rxbuf_hdr *); int bwi_rf_calc_rssi_bcm2053(struct bwi_mac *, const struct bwi_rxbuf_hdr *); int bwi_rf_calc_rssi_bcm2060(struct bwi_mac *, const struct bwi_rxbuf_hdr *); uint16_t bwi_rf_lo_measure_11b(struct bwi_mac *); void bwi_rf_lo_update_11b(struct bwi_mac *); /* INTERFACE */ uint16_t bwi_read_sprom(struct bwi_softc *, uint16_t); void bwi_setup_desc32(struct bwi_softc *, struct bwi_desc32 *, int, int, bus_addr_t, int, int); void bwi_power_on(struct bwi_softc *, int); int bwi_power_off(struct bwi_softc *, int); int bwi_regwin_switch(struct bwi_softc *, struct bwi_regwin *, struct bwi_regwin **); int bwi_regwin_select(struct bwi_softc *, int); void bwi_regwin_info(struct bwi_softc *, uint16_t *, uint8_t *); void bwi_led_attach(struct bwi_softc *); void bwi_led_newstate(struct bwi_softc *, enum ieee80211_state); uint16_t bwi_led_onoff(struct bwi_led *, uint16_t, int); void bwi_led_event(struct bwi_softc *, int); void bwi_led_blink_start(struct bwi_softc *, int, int); void bwi_led_blink_next(void *); void bwi_led_blink_end(void *); int bwi_bbp_attach(struct bwi_softc *); int bwi_bus_init(struct bwi_softc *, struct bwi_mac *); void bwi_get_card_flags(struct bwi_softc *); void bwi_get_eaddr(struct bwi_softc *, uint16_t, uint8_t *); void bwi_get_clock_freq(struct bwi_softc *, struct bwi_clock_freq *); int bwi_set_clock_mode(struct bwi_softc *, enum bwi_clock_mode); int bwi_set_clock_delay(struct bwi_softc *); int bwi_init(struct ifnet *); int bwi_ioctl(struct ifnet *, u_long, caddr_t); void bwi_start(struct ifnet *); void bwi_watchdog(struct ifnet *); void bwi_newstate_begin(struct bwi_softc *, enum ieee80211_state); void bwi_init_statechg(struct bwi_softc *, int); int bwi_stop(struct bwi_softc *, int); int bwi_newstate(struct ieee80211com *, enum ieee80211_state, int); int bwi_media_change(struct ifnet *); void bwi_iter_func(void *, struct ieee80211_node *); void bwi_amrr_timeout(void *); void bwi_newassoc(struct ieee80211com *, struct ieee80211_node *, int); int bwi_dma_alloc(struct bwi_softc *); void bwi_dma_free(struct bwi_softc *); int bwi_dma_ring_alloc(struct bwi_softc *, struct bwi_ring_data *, bus_size_t, uint32_t); int bwi_dma_txstats_alloc(struct bwi_softc *, uint32_t, bus_size_t); void bwi_dma_txstats_free(struct bwi_softc *); int bwi_dma_mbuf_create(struct bwi_softc *); void bwi_dma_mbuf_destroy(struct bwi_softc *, int, int); void bwi_enable_intrs(struct bwi_softc *, uint32_t); void bwi_disable_intrs(struct bwi_softc *, uint32_t); int bwi_init_tx_ring32(struct bwi_softc *, int); void bwi_init_rxdesc_ring32(struct bwi_softc *, uint32_t, bus_addr_t, int, int); int bwi_init_rx_ring32(struct bwi_softc *); int bwi_init_txstats32(struct bwi_softc *); void bwi_setup_rx_desc32(struct bwi_softc *, int, bus_addr_t, int); void bwi_setup_tx_desc32(struct bwi_softc *, struct bwi_ring_data *, int, bus_addr_t, int); int bwi_init_tx_ring64(struct bwi_softc *, int); int bwi_init_rx_ring64(struct bwi_softc *); int bwi_init_txstats64(struct bwi_softc *); void bwi_setup_rx_desc64(struct bwi_softc *, int, bus_addr_t, int); void bwi_setup_tx_desc64(struct bwi_softc *, struct bwi_ring_data *, int, bus_addr_t, int); int bwi_newbuf(struct bwi_softc *, int, int); void bwi_set_addr_filter(struct bwi_softc *, uint16_t, const uint8_t *); int bwi_set_chan(struct bwi_softc *, uint8_t); void bwi_next_scan(void *); int bwi_rxeof(struct bwi_softc *, int); int bwi_rxeof32(struct bwi_softc *); int bwi_rxeof64(struct bwi_softc *); void bwi_reset_rx_ring32(struct bwi_softc *, uint32_t); void bwi_free_txstats32(struct bwi_softc *); void bwi_free_rx_ring32(struct bwi_softc *); void bwi_free_tx_ring32(struct bwi_softc *, int); void bwi_free_txstats64(struct bwi_softc *); void bwi_free_rx_ring64(struct bwi_softc *); void bwi_free_tx_ring64(struct bwi_softc *, int); uint8_t bwi_ofdm_plcp2rate(uint32_t *); uint8_t bwi_ds_plcp2rate(struct ieee80211_ds_plcp_hdr *); void bwi_ofdm_plcp_header(uint32_t *, int, uint8_t); void bwi_ds_plcp_header(struct ieee80211_ds_plcp_hdr *, int, uint8_t); void bwi_plcp_header(void *, int, uint8_t); int bwi_encap(struct bwi_softc *, int, struct mbuf *, struct ieee80211_node *); void bwi_start_tx32(struct bwi_softc *, uint32_t, int); void bwi_start_tx64(struct bwi_softc *, uint32_t, int); void bwi_txeof_status32(struct bwi_softc *); void bwi_txeof_status64(struct bwi_softc *); void _bwi_txeof(struct bwi_softc *, uint16_t); void bwi_txeof_status(struct bwi_softc *, int); void bwi_txeof(struct bwi_softc *); int bwi_bbp_power_on(struct bwi_softc *, enum bwi_clock_mode); void bwi_bbp_power_off(struct bwi_softc *); int bwi_get_pwron_delay(struct bwi_softc *sc); int bwi_bus_attach(struct bwi_softc *); const char *bwi_regwin_name(const struct bwi_regwin *); int bwi_regwin_is_enabled(struct bwi_softc *, struct bwi_regwin *); uint32_t bwi_regwin_disable_bits(struct bwi_softc *); void bwi_regwin_enable(struct bwi_softc *, struct bwi_regwin *, uint32_t); void bwi_regwin_disable(struct bwi_softc *, struct bwi_regwin *, uint32_t); void bwi_set_bssid(struct bwi_softc *, const uint8_t *); void bwi_updateslot(struct ieee80211com *); void bwi_calibrate(void *); int bwi_calc_rssi(struct bwi_softc *, const struct bwi_rxbuf_hdr *); uint8_t bwi_ack_rate(struct ieee80211_node *, uint8_t); uint16_t bwi_txtime(struct ieee80211com *, struct ieee80211_node *, uint, uint8_t, uint32_t); enum bwi_modtype bwi_rate2modtype(uint8_t); static const uint8_t bwi_sup_macrev[] = { 2, 4, 5, 6, 7, 9, 10 }; #define SUP_BPHY(num) { .rev = num, .init = bwi_phy_init_11b_rev##num } static const struct { uint8_t rev; void (*init)(struct bwi_mac *); } bwi_sup_bphy[] = { SUP_BPHY(2), SUP_BPHY(4), SUP_BPHY(5), SUP_BPHY(6) }; #undef SUP_BPHY #define BWI_PHYTBL_WRSSI 0x1000 #define BWI_PHYTBL_NOISE_SCALE 0x1400 #define BWI_PHYTBL_NOISE 0x1800 #define BWI_PHYTBL_ROTOR 0x2000 #define BWI_PHYTBL_DELAY 0x2400 #define BWI_PHYTBL_RSSI 0x4000 #define BWI_PHYTBL_SIGMA_SQ 0x5000 #define BWI_PHYTBL_WRSSI_REV1 0x5400 #define BWI_PHYTBL_FREQ 0x5800 static const uint16_t bwi_phy_freq_11g_rev1[] = { BWI_PHY_FREQ_11G_REV1 }; static const uint16_t bwi_phy_noise_11g_rev1[] = { BWI_PHY_NOISE_11G_REV1 }; static const uint16_t bwi_phy_noise_11g[] = { BWI_PHY_NOISE_11G }; static const uint32_t bwi_phy_rotor_11g_rev1[] = { BWI_PHY_ROTOR_11G_REV1 }; static const uint16_t bwi_phy_noise_scale_11g_rev2[] = { BWI_PHY_NOISE_SCALE_11G_REV2 }; static const uint16_t bwi_phy_noise_scale_11g_rev7[] = { BWI_PHY_NOISE_SCALE_11G_REV7 }; static const uint16_t bwi_phy_noise_scale_11g[] = { BWI_PHY_NOISE_SCALE_11G }; static const uint16_t bwi_phy_sigma_sq_11g_rev2[] = { BWI_PHY_SIGMA_SQ_11G_REV2 }; static const uint16_t bwi_phy_sigma_sq_11g_rev7[] = { BWI_PHY_SIGMA_SQ_11G_REV7 }; static const uint32_t bwi_phy_delay_11g_rev1[] = { BWI_PHY_DELAY_11G_REV1 }; /* RF */ #define RF_LO_WRITE(mac, lo) bwi_rf_lo_write((mac), (lo)) #define BWI_RF_2GHZ_CHAN(chan) \ (ieee80211_ieee2mhz((chan), IEEE80211_CHAN_2GHZ) - 2400) #define BWI_DEFAULT_IDLE_TSSI 52 struct rf_saveregs { uint16_t phy_01; uint16_t phy_03; uint16_t phy_0a; uint16_t phy_15; uint16_t phy_2a; uint16_t phy_30; uint16_t phy_35; uint16_t phy_60; uint16_t phy_429; uint16_t phy_802; uint16_t phy_811; uint16_t phy_812; uint16_t phy_814; uint16_t phy_815; uint16_t rf_43; uint16_t rf_52; uint16_t rf_7a; }; #define SAVE_RF_REG(mac, regs, n) (regs)->rf_##n = RF_READ((mac), 0x##n) #define RESTORE_RF_REG(mac, regs, n) RF_WRITE((mac), 0x##n, (regs)->rf_##n) #define SAVE_PHY_REG(mac, regs, n) (regs)->phy_##n = PHY_READ((mac), 0x##n) #define RESTORE_PHY_REG(mac, regs, n) PHY_WRITE((mac), 0x##n, (regs)->phy_##n) static const int8_t bwi_txpower_map_11b[BWI_TSSI_MAX] = { BWI_TXPOWER_MAP_11B }; static const int8_t bwi_txpower_map_11g[BWI_TSSI_MAX] = { BWI_TXPOWER_MAP_11G }; /* IF_BWI */ struct bwi_myaddr_bssid { uint8_t myaddr[IEEE80211_ADDR_LEN]; uint8_t bssid[IEEE80211_ADDR_LEN]; } __packed; #define IEEE80211_DS_PLCP_SERVICE_LOCKED 0x04 #define IEEE80211_DS_PLCL_SERVICE_PBCC 0x08 #define IEEE80211_DS_PLCP_SERVICE_LENEXT5 0x20 #define IEEE80211_DS_PLCP_SERVICE_LENEXT6 0x40 #define IEEE80211_DS_PLCP_SERVICE_LENEXT7 0x80 struct cfdriver bwi_cd = { NULL, "bwi", DV_IFNET }; static const struct { uint16_t did_min; uint16_t did_max; uint16_t bbp_id; } bwi_bbpid_map[] = { { 0x4301, 0x4301, 0x4301 }, { 0x4305, 0x4307, 0x4307 }, { 0x4403, 0x4403, 0x4402 }, { 0x4610, 0x4615, 0x4610 }, { 0x4710, 0x4715, 0x4710 }, { 0x4720, 0x4725, 0x4309 } }; static const struct { uint16_t bbp_id; int nregwin; } bwi_regwin_count[] = { { 0x4301, 5 }, { 0x4306, 6 }, { 0x4307, 5 }, { 0x4310, 8 }, { 0x4401, 3 }, { 0x4402, 3 }, { 0x4610, 9 }, { 0x4704, 9 }, { 0x4710, 9 }, { 0x5365, 7 } }; #define CLKSRC(src) \ [BWI_CLKSRC_ ## src] = { \ .freq_min = BWI_CLKSRC_ ##src## _FMIN, \ .freq_max = BWI_CLKSRC_ ##src## _FMAX \ } static const struct { uint freq_min; uint freq_max; } bwi_clkfreq[BWI_CLKSRC_MAX] = { CLKSRC(LP_OSC), CLKSRC(CS_OSC), CLKSRC(PCI) }; #undef CLKSRC #define VENDOR_LED_ACT(vendor) \ { \ .vid = PCI_VENDOR_##vendor, \ .led_act = { BWI_VENDOR_LED_ACT_##vendor } \ } const struct { uint16_t vid; uint8_t led_act[BWI_LED_MAX]; } bwi_vendor_led_act[] = { VENDOR_LED_ACT(COMPAQ), VENDOR_LED_ACT(LINKSYS) }; const uint8_t bwi_default_led_act[BWI_LED_MAX] = { BWI_VENDOR_LED_ACT_DEFAULT }; #undef VENDOR_LED_ACT const struct { int on_dur; int off_dur; } bwi_led_duration[109] = { { 400, 100 }, { 0, 0 }, { 150 , 75 }, { 0, 0 }, { 90, 45 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 66, 34 }, { 53, 26 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 42, 21 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 35, 17 }, { 0, 0 }, { 32, 16 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 21, 10 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 16, 8 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 11, 5 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 9, 4 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 7, 3 } }; static const uint8_t bwi_zero_addr[IEEE80211_ADDR_LEN]; enum bwi_modtype { IEEE80211_MODTYPE_DS = 0, /* DS/CCK modulation */ IEEE80211_MODTYPE_PBCC = 1, /* PBCC modulation */ IEEE80211_MODTYPE_OFDM = 2 /* OFDM modulation */ }; #define IEEE80211_MODTYPE_CCK IEEE80211_MODTYPE_DS /* CODE */ int bwi_intr(void *xsc) { struct bwi_softc *sc = xsc; struct bwi_mac *mac; struct ifnet *ifp = &sc->sc_ic.ic_if; uint32_t intr_status; uint32_t txrx_intr_status[BWI_TXRX_NRING]; int i, txrx_error, tx = 0, rx_data = -1; if ((ifp->if_flags & IFF_RUNNING) == 0) return (0); /* * Get interrupt status */ intr_status = CSR_READ_4(sc, BWI_MAC_INTR_STATUS); if (intr_status == 0xffffffff) /* Not for us */ return (0); intr_status &= CSR_READ_4(sc, BWI_MAC_INTR_MASK); if (intr_status == 0) /* Nothing is interesting */ return (0); DPRINTF(2, "%s: intr status 0x%08x\n", sc->sc_dev.dv_xname, intr_status); KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; txrx_error = 0; for (i = 0; i < BWI_TXRX_NRING; ++i) { uint32_t mask; if (BWI_TXRX_IS_RX(i)) mask = BWI_TXRX_RX_INTRS; else mask = BWI_TXRX_TX_INTRS; txrx_intr_status[i] = CSR_READ_4(sc, BWI_TXRX_INTR_STATUS(i)) & mask; if (txrx_intr_status[i] & BWI_TXRX_INTR_ERROR) { printf("%s: intr fatal TX/RX (%d) error 0x%08x\n", sc->sc_dev.dv_xname, i, txrx_intr_status[i]); txrx_error = 1; } } /* * Acknowledge interrupt */ CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, intr_status); for (i = 0; i < BWI_TXRX_NRING; ++i) CSR_WRITE_4(sc, BWI_TXRX_INTR_STATUS(i), txrx_intr_status[i]); /* Disable all interrupts */ bwi_disable_intrs(sc, BWI_ALL_INTRS); if (intr_status & BWI_INTR_PHY_TXERR) { if (mac->mac_flags & BWI_MAC_F_PHYE_RESET) { printf("intr PHY TX error\n"); /* XXX to netisr0? */ bwi_init_statechg(sc, 0); return (0); } } if (txrx_error) { /* TODO: reset device */ } if (intr_status & BWI_INTR_TBTT) bwi_mac_config_ps(mac); if (intr_status & BWI_INTR_EO_ATIM) printf("%s: EO_ATIM\n", sc->sc_dev.dv_xname); if (intr_status & BWI_INTR_PMQ) { for (;;) { if ((CSR_READ_4(sc, BWI_MAC_PS_STATUS) & 0x8) == 0) break; } CSR_WRITE_2(sc, BWI_MAC_PS_STATUS, 0x2); } if (intr_status & BWI_INTR_NOISE) printf("%s: intr noise\n", sc->sc_dev.dv_xname); if (txrx_intr_status[0] & BWI_TXRX_INTR_RX) rx_data = sc->sc_rxeof(sc); if (txrx_intr_status[3] & BWI_TXRX_INTR_RX) { sc->sc_txeof_status(sc); tx = 1; } if (intr_status & BWI_INTR_TX_DONE) { bwi_txeof(sc); tx = 1; } /* Re-enable interrupts */ bwi_enable_intrs(sc, BWI_INIT_INTRS); if (sc->sc_blink_led != NULL && sc->sc_led_blink) { int evt = BWI_LED_EVENT_NONE; if (tx && rx_data > 0) { if (sc->sc_rx_rate > sc->sc_tx_rate) evt = BWI_LED_EVENT_RX; else evt = BWI_LED_EVENT_TX; } else if (tx) { evt = BWI_LED_EVENT_TX; } else if (rx_data > 0) { evt = BWI_LED_EVENT_RX; } else if (rx_data == 0) { evt = BWI_LED_EVENT_POLL; } if (evt != BWI_LED_EVENT_NONE) bwi_led_event(sc, evt); } return (1); } int bwi_attach(struct bwi_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; struct bwi_mac *mac; struct bwi_phy *phy; int i, error; DPRINTF(1, "\n"); /* Initialize LED vars */ sc->sc_led_idle = (2350 * hz) / 1000; sc->sc_led_blink = 1; /* AMRR rate control */ sc->sc_amrr.amrr_min_success_threshold = 1; sc->sc_amrr.amrr_max_success_threshold = 15; timeout_set(&sc->sc_amrr_ch, bwi_amrr_timeout, sc); timeout_set(&sc->sc_scan_ch, bwi_next_scan, sc); timeout_set(&sc->sc_calib_ch, bwi_calibrate, sc); bwi_power_on(sc, 1); error = bwi_bbp_attach(sc); if (error) goto fail; error = bwi_bbp_power_on(sc, BWI_CLOCK_MODE_FAST); if (error) goto fail; if (BWI_REGWIN_EXIST(&sc->sc_com_regwin)) { error = bwi_set_clock_delay(sc); if (error) goto fail; error = bwi_set_clock_mode(sc, BWI_CLOCK_MODE_FAST); if (error) goto fail; error = bwi_get_pwron_delay(sc); if (error) goto fail; } error = bwi_bus_attach(sc); if (error) goto fail; bwi_get_card_flags(sc); bwi_led_attach(sc); for (i = 0; i < sc->sc_nmac; ++i) { struct bwi_regwin *old; mac = &sc->sc_mac[i]; error = bwi_regwin_switch(sc, &mac->mac_regwin, &old); if (error) goto fail; error = bwi_mac_lateattach(mac); if (error) goto fail; error = bwi_regwin_switch(sc, old, NULL); if (error) goto fail; } /* * XXX First MAC is known to exist * TODO2 */ mac = &sc->sc_mac[0]; phy = &mac->mac_phy; bwi_bbp_power_off(sc); error = bwi_dma_alloc(sc); if (error) goto fail; /* setup interface */ ifp->if_softc = sc; ifp->if_init = bwi_init; ifp->if_ioctl = bwi_ioctl; ifp->if_start = bwi_start; ifp->if_watchdog = bwi_watchdog; ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; strlcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); IFQ_SET_READY(&ifp->if_snd); /* Get locale */ sc->sc_locale = __SHIFTOUT(bwi_read_sprom(sc, BWI_SPROM_CARD_INFO), BWI_SPROM_CARD_INFO_LOCALE); DPRINTF(1, "%s: locale: %d\n", sc->sc_dev.dv_xname, sc->sc_locale); /* * Setup ratesets, phytype, channels and get MAC address */ if (phy->phy_mode == IEEE80211_MODE_11B || phy->phy_mode == IEEE80211_MODE_11G) { uint16_t chan_flags; ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; if (phy->phy_mode == IEEE80211_MODE_11B) { chan_flags = IEEE80211_CHAN_B; ic->ic_phytype = IEEE80211_T_DS; } else { chan_flags = IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; ic->ic_phytype = IEEE80211_T_OFDM; ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; } /* XXX depend on locale */ for (i = 1; i <= 14; ++i) { ic->ic_channels[i].ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); ic->ic_channels[i].ic_flags = chan_flags; } bwi_get_eaddr(sc, BWI_SPROM_11BG_EADDR, ic->ic_myaddr); if (IEEE80211_IS_MULTICAST(ic->ic_myaddr)) { bwi_get_eaddr(sc, BWI_SPROM_11A_EADDR, ic->ic_myaddr); if (IEEE80211_IS_MULTICAST(ic->ic_myaddr)) { printf("%s: invalid MAC address: %s\n", sc->sc_dev.dv_xname, ether_sprintf(ic->ic_myaddr)); } } } else if (phy->phy_mode == IEEE80211_MODE_11A) { /* TODO: 11A */ error = ENXIO; goto fail; } else panic("unknown phymode %d\n", phy->phy_mode); printf(", address %s\n", ether_sprintf(ic->ic_myaddr)); sc->sc_fw_version = BWI_FW_VERSION3; sc->sc_dwell_time = 200; ic->ic_caps = IEEE80211_C_SHSLOT | IEEE80211_C_SHPREAMBLE | IEEE80211_C_WEP | IEEE80211_C_RSN | IEEE80211_C_MONITOR; ic->ic_state = IEEE80211_S_INIT; ic->ic_opmode = IEEE80211_M_STA; ic->ic_updateslot = bwi_updateslot; if_attach(ifp); ieee80211_ifattach(ifp); sc->sc_newstate = ic->ic_newstate; ic->ic_newstate = bwi_newstate; ic->ic_newassoc = bwi_newassoc; ieee80211_media_init(ifp, bwi_media_change, ieee80211_media_status); if (error) { ieee80211_ifdetach(ifp); goto fail; } #if NBPFILTER > 0 bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO, sizeof(struct ieee80211_frame) + 64); sc->sc_rxtap_len = sizeof(sc->sc_rxtapu); sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); sc->sc_rxtap.wr_ihdr.it_present = htole32(BWI_RX_RADIOTAP_PRESENT); sc->sc_txtap_len = sizeof(sc->sc_txtapu); sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); sc->sc_txtap.wt_ihdr.it_present = htole32(BWI_TX_RADIOTAP_PRESENT); #endif return (0); fail: return (error); } int bwi_detach(void *arg) { struct bwi_softc *sc = arg; struct ifnet *ifp = &sc->sc_ic.ic_if; int i; bwi_stop(sc, 1); ieee80211_ifdetach(ifp); if_detach(ifp); for (i = 0; i < sc->sc_nmac; ++i) bwi_mac_detach(&sc->sc_mac[i]); bwi_dma_free(sc); return (0); } /* MAC */ void bwi_tmplt_write_4(struct bwi_mac *mac, uint32_t ofs, uint32_t val) { struct bwi_softc *sc = mac->mac_sc; if (mac->mac_flags & BWI_MAC_F_BSWAP) val = swap32(val); CSR_WRITE_4(sc, BWI_MAC_TMPLT_CTRL, ofs); CSR_WRITE_4(sc, BWI_MAC_TMPLT_DATA, val); } void bwi_hostflags_write(struct bwi_mac *mac, uint64_t flags) { uint64_t val; val = flags & 0xffff; MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_LO, val); val = (flags >> 16) & 0xffff; MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_MI, val); /* HI has unclear meaning, so leave it as it is */ } uint64_t bwi_hostflags_read(struct bwi_mac *mac) { uint64_t flags, val; /* HI has unclear meaning, so don't touch it */ flags = 0; val = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_MI); flags |= val << 16; val = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_LO); flags |= val; return (flags); } uint16_t bwi_memobj_read_2(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0) { struct bwi_softc *sc = mac->mac_sc; uint32_t data_reg; int ofs; data_reg = BWI_MOBJ_DATA; ofs = ofs0 / 4; if (ofs0 % 4 != 0) data_reg = BWI_MOBJ_DATA_UNALIGN; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); return (CSR_READ_2(sc, data_reg)); } uint32_t bwi_memobj_read_4(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0) { struct bwi_softc *sc = mac->mac_sc; int ofs; ofs = ofs0 / 4; if (ofs0 % 4 != 0) { uint32_t ret; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); ret = CSR_READ_2(sc, BWI_MOBJ_DATA_UNALIGN); ret <<= 16; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs + 1)); ret |= CSR_READ_2(sc, BWI_MOBJ_DATA); return (ret); } else { CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); return (CSR_READ_4(sc, BWI_MOBJ_DATA)); } } void bwi_memobj_write_2(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0, uint16_t v) { struct bwi_softc *sc = mac->mac_sc; uint32_t data_reg; int ofs; data_reg = BWI_MOBJ_DATA; ofs = ofs0 / 4; if (ofs0 % 4 != 0) data_reg = BWI_MOBJ_DATA_UNALIGN; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); CSR_WRITE_2(sc, data_reg, v); } void bwi_memobj_write_4(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0, uint32_t v) { struct bwi_softc *sc = mac->mac_sc; int ofs; ofs = ofs0 / 4; if (ofs0 % 4 != 0) { CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); CSR_WRITE_2(sc, BWI_MOBJ_DATA_UNALIGN, v >> 16); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs + 1)); CSR_WRITE_2(sc, BWI_MOBJ_DATA, v & 0xffff); } else { CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); CSR_WRITE_4(sc, BWI_MOBJ_DATA, v); } } int bwi_mac_lateattach(struct bwi_mac *mac) { int error; if (mac->mac_rev >= 5) CSR_READ_4(mac->mac_sc, BWI_STATE_HI); /* dummy read */ bwi_mac_reset(mac, 1); error = bwi_phy_attach(mac); if (error) return (error); error = bwi_rf_attach(mac); if (error) return (error); /* Link 11B/G PHY, unlink 11A PHY */ if (mac->mac_phy.phy_mode == IEEE80211_MODE_11A) bwi_mac_reset(mac, 0); else bwi_mac_reset(mac, 1); error = bwi_mac_test(mac); if (error) return (error); error = bwi_mac_get_property(mac); if (error) return (error); error = bwi_rf_map_txpower(mac); if (error) return (error); bwi_rf_off(mac); CSR_WRITE_2(mac->mac_sc, BWI_BBP_ATTEN, BWI_BBP_ATTEN_MAGIC); bwi_regwin_disable(mac->mac_sc, &mac->mac_regwin, 0); return (0); } int bwi_mac_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; int error, i; /* Clear MAC/PHY/RF states */ bwi_mac_setup_tpctl(mac); bwi_rf_clear_state(&mac->mac_rf); bwi_phy_clear_state(&mac->mac_phy); /* Enable MAC and linked it to PHY */ if (!bwi_regwin_is_enabled(sc, &mac->mac_regwin)) bwi_mac_reset(mac, 1); /* Initialize backplane */ error = bwi_bus_init(sc, mac); if (error) return (error); /* XXX work around for hardware bugs? */ if (sc->sc_bus_regwin.rw_rev <= 5 && sc->sc_bus_regwin.rw_type != BWI_REGWIN_T_BUSPCIE) { CSR_SETBITS_4(sc, BWI_CONF_LO, __SHIFTIN(BWI_CONF_LO_SERVTO, BWI_CONF_LO_SERVTO_MASK) | __SHIFTIN(BWI_CONF_LO_REQTO, BWI_CONF_LO_REQTO_MASK)); } /* Calibrate PHY */ error = bwi_phy_calibrate(mac); if (error) { printf("%s: PHY calibrate failed\n", sc->sc_dev.dv_xname); return (error); } /* Prepare to initialize firmware */ CSR_WRITE_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_UCODE_JUMP0 | BWI_MAC_STATUS_IHREN); /* * Load and initialize firmwares */ error = bwi_mac_fw_alloc(mac); if (error) return (error); error = bwi_mac_fw_load(mac); if (error) return (error); error = bwi_mac_gpio_init(mac); if (error) return (error); error = bwi_mac_fw_init(mac); if (error) return (error); /* * Turn on RF */ bwi_rf_on(mac); /* TODO: LED, hardware rf enabled is only related to LED setting */ /* * Initialize PHY */ CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0); bwi_phy_init(mac); /* TODO: interference mitigation */ /* * Setup antenna mode */ bwi_rf_set_ant_mode(mac, mac->mac_rf.rf_ant_mode); /* * Initialize operation mode (RX configuration) */ bwi_mac_opmode_init(mac); /* XXX what's these */ if (mac->mac_rev < 3) { CSR_WRITE_2(sc, 0x60e, 0); CSR_WRITE_2(sc, 0x610, 0x8000); CSR_WRITE_2(sc, 0x604, 0); CSR_WRITE_2(sc, 0x606, 0x200); } else { CSR_WRITE_4(sc, 0x188, 0x80000000); CSR_WRITE_4(sc, 0x18c, 0x2000000); } /* * Initialize TX/RX interrupts' mask */ CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_INTR_TIMER1); for (i = 0; i < BWI_TXRX_NRING; ++i) { uint32_t intrs; if (BWI_TXRX_IS_RX(i)) intrs = BWI_TXRX_RX_INTRS; else intrs = BWI_TXRX_TX_INTRS; CSR_WRITE_4(sc, BWI_TXRX_INTR_MASK(i), intrs); } /* XXX what's this */ CSR_SETBITS_4(sc, BWI_STATE_LO, 0x100000); /* Setup MAC power up delay */ CSR_WRITE_2(sc, BWI_MAC_POWERUP_DELAY, sc->sc_pwron_delay); /* Set MAC regwin revision */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_MACREV, mac->mac_rev); /* * Initialize host flags */ bwi_mac_hostflags_init(mac); /* * Initialize BSS parameters */ bwi_mac_bss_param_init(mac); /* * Initialize TX rings */ for (i = 0; i < BWI_TX_NRING; ++i) { error = sc->sc_init_tx_ring(sc, i); if (error) { printf("%s: can't initialize %dth TX ring\n", sc->sc_dev.dv_xname, i); return (error); } } /* * Initialize RX ring */ error = sc->sc_init_rx_ring(sc); if (error) { printf("%s: can't initialize RX ring\n", sc->sc_dev.dv_xname); return (error); } /* * Initialize TX stats if the current MAC uses that */ if (mac->mac_flags & BWI_MAC_F_HAS_TXSTATS) { error = sc->sc_init_txstats(sc); if (error) { printf("%s: can't initialize TX stats ring\n", sc->sc_dev.dv_xname); return (error); } } /* XXX what's these */ CSR_WRITE_2(sc, 0x612, 0x50); /* Force Pre-TBTT to 80? */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, 0x416, 0x50); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, 0x414, 0x1f4); mac->mac_flags |= BWI_MAC_F_INITED; return (0); } void bwi_mac_reset(struct bwi_mac *mac, int link_phy) { struct bwi_softc *sc = mac->mac_sc; uint32_t flags, state_lo, status; flags = BWI_STATE_LO_FLAG_PHYRST | BWI_STATE_LO_FLAG_PHYCLKEN; if (link_phy) flags |= BWI_STATE_LO_FLAG_PHYLNK; bwi_regwin_enable(sc, &mac->mac_regwin, flags); DELAY(2000); state_lo = CSR_READ_4(sc, BWI_STATE_LO); state_lo |= BWI_STATE_LO_GATED_CLOCK; state_lo &= ~__SHIFTIN(BWI_STATE_LO_FLAG_PHYRST, BWI_STATE_LO_FLAGS_MASK); CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1000); state_lo &= ~BWI_STATE_LO_GATED_CLOCK; CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1000); CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0); status = CSR_READ_4(sc, BWI_MAC_STATUS); status |= BWI_MAC_STATUS_IHREN; if (link_phy) status |= BWI_MAC_STATUS_PHYLNK; else status &= ~BWI_MAC_STATUS_PHYLNK; CSR_WRITE_4(sc, BWI_MAC_STATUS, status); if (link_phy) { DPRINTF(1, "%s: PHY is linked\n", sc->sc_dev.dv_xname); mac->mac_phy.phy_flags |= BWI_PHY_F_LINKED; } else { DPRINTF(1, "%s: PHY is unlinked\n", sc->sc_dev.dv_xname); mac->mac_phy.phy_flags &= ~BWI_PHY_F_LINKED; } } void bwi_mac_set_tpctl_11bg(struct bwi_mac *mac, const struct bwi_tpctl *new_tpctl) { struct bwi_rf *rf = &mac->mac_rf; struct bwi_tpctl *tpctl = &mac->mac_tpctl; if (new_tpctl != NULL) { KASSERT(new_tpctl->bbp_atten <= BWI_BBP_ATTEN_MAX); KASSERT(new_tpctl->rf_atten <= (rf->rf_rev < 6 ? BWI_RF_ATTEN_MAX0 : BWI_RF_ATTEN_MAX1)); KASSERT(new_tpctl->tp_ctrl1 <= BWI_TPCTL1_MAX); tpctl->bbp_atten = new_tpctl->bbp_atten; tpctl->rf_atten = new_tpctl->rf_atten; tpctl->tp_ctrl1 = new_tpctl->tp_ctrl1; } /* Set BBP attenuation */ bwi_phy_set_bbp_atten(mac, tpctl->bbp_atten); /* Set RF attenuation */ RF_WRITE(mac, BWI_RFR_ATTEN, tpctl->rf_atten); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_RF_ATTEN, tpctl->rf_atten); /* Set TX power */ if (rf->rf_type == BWI_RF_T_BCM2050) { RF_FILT_SETBITS(mac, BWI_RFR_TXPWR, ~BWI_RFR_TXPWR1_MASK, __SHIFTIN(tpctl->tp_ctrl1, BWI_RFR_TXPWR1_MASK)); } /* Adjust RF Local Oscillator */ if (mac->mac_phy.phy_mode == IEEE80211_MODE_11G) bwi_rf_lo_adjust(mac, tpctl); } int bwi_mac_test(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; uint32_t orig_val, val; #define TEST_VAL1 0xaa5555aa #define TEST_VAL2 0x55aaaa55 /* Save it for later restoring */ orig_val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0); /* Test 1 */ MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, TEST_VAL1); val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0); if (val != TEST_VAL1) { printf("%s: TEST1 failed\n", sc->sc_dev.dv_xname); return (ENXIO); } /* Test 2 */ MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, TEST_VAL2); val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0); if (val != TEST_VAL2) { printf("%s: TEST2 failed\n", sc->sc_dev.dv_xname); return (ENXIO); } /* Restore to the original value */ MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, orig_val); val = CSR_READ_4(sc, BWI_MAC_STATUS); if ((val & ~BWI_MAC_STATUS_PHYLNK) != BWI_MAC_STATUS_IHREN) { printf("%s: %s failed, MAC status 0x%08x\n", sc->sc_dev.dv_xname, __func__, val); return (ENXIO); } val = CSR_READ_4(sc, BWI_MAC_INTR_STATUS); if (val != 0) { printf("%s: %s failed, intr status %08x\n", sc->sc_dev.dv_xname, __func__, val); return (ENXIO); } #undef TEST_VAL2 #undef TEST_VAL1 return (0); } void bwi_mac_setup_tpctl(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_phy *phy = &mac->mac_phy; struct bwi_tpctl *tpctl = &mac->mac_tpctl; /* Calc BBP attenuation */ if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev < 6) tpctl->bbp_atten = 0; else tpctl->bbp_atten = 2; /* Calc TX power CTRL1?? */ tpctl->tp_ctrl1 = 0; if (rf->rf_type == BWI_RF_T_BCM2050) { if (rf->rf_rev == 1) tpctl->tp_ctrl1 = 3; else if (rf->rf_rev < 6) tpctl->tp_ctrl1 = 2; else if (rf->rf_rev == 8) tpctl->tp_ctrl1 = 1; } /* Empty TX power CTRL2?? */ tpctl->tp_ctrl2 = 0xffff; /* * Calc RF attenuation */ if (phy->phy_mode == IEEE80211_MODE_11A) { tpctl->rf_atten = 0x60; goto back; } if (BWI_IS_BRCM_BCM4309G(sc) && sc->sc_pci_revid < 0x51) { tpctl->rf_atten = sc->sc_pci_revid < 0x43 ? 2 : 3; goto back; } tpctl->rf_atten = 5; if (rf->rf_type != BWI_RF_T_BCM2050) { if (rf->rf_type == BWI_RF_T_BCM2053 && rf->rf_rev == 1) tpctl->rf_atten = 6; goto back; } /* * NB: If we reaches here and the card is BRCM_BCM4309G, * then the card's PCI revision must >= 0x51 */ /* BCM2050 RF */ switch (rf->rf_rev) { case 1: if (phy->phy_mode == IEEE80211_MODE_11G) { if (BWI_IS_BRCM_BCM4309G(sc) || BWI_IS_BRCM_BU4306(sc)) tpctl->rf_atten = 3; else tpctl->rf_atten = 1; } else { if (BWI_IS_BRCM_BCM4309G(sc)) tpctl->rf_atten = 7; else tpctl->rf_atten = 6; } break; case 2: if (phy->phy_mode == IEEE80211_MODE_11G) { /* * NOTE: Order of following conditions is critical */ if (BWI_IS_BRCM_BCM4309G(sc)) tpctl->rf_atten = 3; else if (BWI_IS_BRCM_BU4306(sc)) tpctl->rf_atten = 5; else if (sc->sc_bbp_id == BWI_BBPID_BCM4320) tpctl->rf_atten = 4; else tpctl->rf_atten = 3; } else { tpctl->rf_atten = 6; } break; case 4: case 5: tpctl->rf_atten = 1; break; case 8: tpctl->rf_atten = 0x1a; break; } back: DPRINTF(1, "%s: bbp atten: %u, rf atten: %u, ctrl1: %u, ctrl2: %u\n", sc->sc_dev.dv_xname, tpctl->bbp_atten, tpctl->rf_atten, tpctl->tp_ctrl1, tpctl->tp_ctrl2); } void bwi_mac_dummy_xmit(struct bwi_mac *mac) { #define PACKET_LEN 5 struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; const uint32_t *packet; uint16_t val_50c; int wait_max, i; static const uint32_t packet_11a[PACKET_LEN] = { 0x000201cc, 0x00d40000, 0x00000000, 0x01000000, 0x00000000 }; static const uint32_t packet_11bg[PACKET_LEN] = { 0x000b846e, 0x00d40000, 0x00000000, 0x01000000, 0x00000000 }; if (mac->mac_phy.phy_mode == IEEE80211_MODE_11A) { wait_max = 30; packet = packet_11a; val_50c = 1; } else { wait_max = 250; packet = packet_11bg; val_50c = 0; } for (i = 0; i < PACKET_LEN; ++i) TMPLT_WRITE_4(mac, i * 4, packet[i]); CSR_READ_4(sc, BWI_MAC_STATUS); /* dummy read */ CSR_WRITE_2(sc, 0x568, 0); CSR_WRITE_2(sc, 0x7c0, 0); CSR_WRITE_2(sc, 0x50c, val_50c); CSR_WRITE_2(sc, 0x508, 0); CSR_WRITE_2(sc, 0x50a, 0); CSR_WRITE_2(sc, 0x54c, 0); CSR_WRITE_2(sc, 0x56a, 0x14); CSR_WRITE_2(sc, 0x568, 0x826); CSR_WRITE_2(sc, 0x500, 0); CSR_WRITE_2(sc, 0x502, 0x30); if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev <= 5) RF_WRITE(mac, 0x51, 0x17); for (i = 0; i < wait_max; ++i) { if (CSR_READ_2(sc, 0x50e) & 0x80) break; DELAY(10); } for (i = 0; i < 10; ++i) { if (CSR_READ_2(sc, 0x50e) & 0x400) break; DELAY(10); } for (i = 0; i < 10; ++i) { if ((CSR_READ_2(sc, 0x690) & 0x100) == 0) break; DELAY(10); } if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev <= 5) RF_WRITE(mac, 0x51, 0x37); #undef PACKET_LEN } void bwi_mac_init_tpctl_11bg(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; struct bwi_tpctl tpctl_orig; int restore_tpctl = 0; KASSERT(phy->phy_mode != IEEE80211_MODE_11A); if (BWI_IS_BRCM_BU4306(sc)) return; PHY_WRITE(mac, 0x28, 0x8018); CSR_CLRBITS_2(sc, BWI_BBP_ATTEN, 0x20); if (phy->phy_mode == IEEE80211_MODE_11G) { if ((phy->phy_flags & BWI_PHY_F_LINKED) == 0) return; PHY_WRITE(mac, 0x47a, 0xc111); } if (mac->mac_flags & BWI_MAC_F_TPCTL_INITED) return; if (phy->phy_mode == IEEE80211_MODE_11B && phy->phy_rev >= 2 && rf->rf_type == BWI_RF_T_BCM2050) { RF_SETBITS(mac, 0x76, 0x84); } else { struct bwi_tpctl tpctl; /* Backup original TX power control variables */ bcopy(&mac->mac_tpctl, &tpctl_orig, sizeof(tpctl_orig)); restore_tpctl = 1; bcopy(&mac->mac_tpctl, &tpctl, sizeof(tpctl)); tpctl.bbp_atten = 11; tpctl.tp_ctrl1 = 0; #ifdef notyet if (rf->rf_rev >= 6 && rf->rf_rev <= 8) tpctl.rf_atten = 31; else #endif tpctl.rf_atten = 9; bwi_mac_set_tpctl_11bg(mac, &tpctl); } bwi_mac_dummy_xmit(mac); mac->mac_flags |= BWI_MAC_F_TPCTL_INITED; rf->rf_base_tssi = PHY_READ(mac, 0x29); DPRINTF(1, "%s: base tssi %d\n", sc->sc_dev.dv_xname, rf->rf_base_tssi); if (abs(rf->rf_base_tssi - rf->rf_idle_tssi) >= 20) { printf("%s: base tssi measure failed\n", sc->sc_dev.dv_xname); mac->mac_flags |= BWI_MAC_F_TPCTL_ERROR; } if (restore_tpctl) bwi_mac_set_tpctl_11bg(mac, &tpctl_orig); else RF_CLRBITS(mac, 0x76, 0x84); bwi_rf_clear_tssi(mac); } void bwi_mac_detach(struct bwi_mac *mac) { bwi_mac_fw_free(mac); } int bwi_get_firmware(const char *name, const uint8_t *ucode, size_t size_ucode, size_t *size, size_t *offset) { int i, nfiles, off = 0, ret = 1; struct fwheader *h; if ((h = malloc(sizeof(struct fwheader), M_DEVBUF, M_NOWAIT)) == NULL) return (ret); /* get number of firmware files */ bcopy(ucode, &nfiles, sizeof(nfiles)); nfiles = ntohl(nfiles); off += sizeof(nfiles); /* parse header and search the firmware */ for (i = 0; i < nfiles && off < size_ucode; i++) { bzero(h, sizeof(struct fwheader)); bcopy(ucode + off, h, sizeof(struct fwheader)); off += sizeof(struct fwheader); if (strcmp(name, h->filename) == 0) { ret = 0; *size = ntohl(h->filesize); *offset = ntohl(h->fileoffset); break; } } free(h, M_DEVBUF); return (ret); } int bwi_fwimage_is_valid(struct bwi_softc *sc, uint8_t *fw, size_t fw_len, char *fw_name, uint8_t fw_type) { const struct bwi_fwhdr *hdr; if (fw_len < sizeof(*hdr)) { printf("%s: invalid firmware (%s): invalid size %u\n", sc->sc_dev.dv_xname, fw_name, fw_len); return (1); } hdr = (const struct bwi_fwhdr *)fw; if (fw_type != BWI_FW_T_IV) { /* * Don't verify IV's size, it has different meaning */ if (betoh32(hdr->fw_size) != fw_len - sizeof(*hdr)) { printf("%s: invalid firmware (%s): size mismatch, " "fw %u, real %u\n", sc->sc_dev.dv_xname, fw_name, betoh32(hdr->fw_size), fw_len - sizeof(*hdr)); return (1); } } if (hdr->fw_type != fw_type) { printf("%s: invalid firmware (%s): type mismatch, " "fw \'%c\', target \'%c\'\n", sc->sc_dev.dv_xname, fw_name, hdr->fw_type, fw_type); return (1); } if (hdr->fw_gen != BWI_FW_GEN_1) { printf("%s: invalid firmware (%s): wrong generation, " "fw %d, target %d\n", sc->sc_dev.dv_xname, fw_name, hdr->fw_gen, BWI_FW_GEN_1); return (1); } return (0); } int bwi_mac_fw_alloc(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; char *name = "bwi-airforce"; size_t offset; char fwname[64]; int idx, error; error = loadfirmware(name, &mac->mac_fw, &mac->mac_fw_size); if (error != 0) { printf("%s: error %d, could not read firmware %s\n", sc->sc_dev.dv_xname, error, name); return (EIO); } if (mac->mac_ucode == NULL) { snprintf(fwname, sizeof(fwname), "ucode%d.fw", mac->mac_rev >= 5 ? 5 : mac->mac_rev); error = bwi_get_firmware(fwname, mac->mac_fw, mac->mac_fw_size, &mac->mac_ucode_size, &offset); if (error != 0) { printf("%s: error %d, could not read firmware %s!\n", sc->sc_dev.dv_xname, error, fwname); return (ENOMEM); } mac->mac_ucode = (mac->mac_fw + offset); DPRINTF(1, "%s: loaded firmware file %s\n", sc->sc_dev.dv_xname, fwname); if (bwi_fwimage_is_valid(sc, mac->mac_ucode, mac->mac_ucode_size, fwname, BWI_FW_T_UCODE)) return (EINVAL); } if (mac->mac_pcm == NULL) { snprintf(fwname, sizeof(fwname), "pcm%d.fw", mac->mac_rev < 5 ? 4 : 5); error = bwi_get_firmware(fwname, mac->mac_fw, mac->mac_fw_size, &mac->mac_pcm_size, &offset); if (error != 0) { printf("%s: error %d, could not read firmware %s!\n", sc->sc_dev.dv_xname, error, fwname); return (ENOMEM); } mac->mac_pcm = (mac->mac_fw + offset); DPRINTF(1, "%s: loaded firmware file %s\n", sc->sc_dev.dv_xname, fwname); if (bwi_fwimage_is_valid(sc, mac->mac_pcm, mac->mac_pcm_size, fwname, BWI_FW_T_PCM)) return (EINVAL); } if (mac->mac_iv == NULL) { /* TODO: 11A */ if (mac->mac_rev == 2 || mac->mac_rev == 4) { idx = 2; } else if (mac->mac_rev >= 5 && mac->mac_rev <= 10) { idx = 5; } else { printf("%s: no suitable IV for MAC rev %d\n", sc->sc_dev.dv_xname, mac->mac_rev); return (ENODEV); } snprintf(fwname, sizeof(fwname), "b0g0initvals%d.fw", idx); error = bwi_get_firmware(fwname, mac->mac_fw, mac->mac_fw_size, &mac->mac_iv_size, &offset); if (error != 0) { printf("%s: error %d, could not read firmware %s!\n", sc->sc_dev.dv_xname, error, fwname); return (ENOMEM); } mac->mac_iv = (mac->mac_fw + offset); DPRINTF(1, "%s: loaded firmware file %s\n", sc->sc_dev.dv_xname, fwname); if (bwi_fwimage_is_valid(sc, mac->mac_iv, mac->mac_iv_size, fwname, BWI_FW_T_IV)) return (EINVAL); } if (mac->mac_iv_ext == NULL) { /* TODO: 11A */ if (mac->mac_rev == 2 || mac->mac_rev == 4 || mac->mac_rev >= 11) { /* No extended IV */ goto back; } else if (mac->mac_rev >= 5 && mac->mac_rev <= 10) { idx = 5; } else { printf("%s: no suitable ExtIV for MAC rev %d\n", sc->sc_dev.dv_xname, mac->mac_rev); return (ENODEV); } snprintf(fwname, sizeof(fwname), "b0g0bsinitvals%d.fw", idx); error = bwi_get_firmware(fwname, mac->mac_fw, mac->mac_fw_size, &mac->mac_iv_ext_size, &offset); if (error != 0) { printf("%s: error %d, could not read firmware %s!\n", sc->sc_dev.dv_xname, error, fwname); return (ENOMEM); } mac->mac_iv_ext = (mac->mac_fw + offset); DPRINTF(1, "%s: loaded firmware file %s\n", sc->sc_dev.dv_xname, fwname); if (bwi_fwimage_is_valid(sc, mac->mac_iv_ext, mac->mac_iv_ext_size, fwname, BWI_FW_T_IV)) return (EINVAL); } back: return (0); } void bwi_mac_fw_free(struct bwi_mac *mac) { if (mac->mac_fw != NULL) { free(mac->mac_fw, M_DEVBUF); mac->mac_fw = NULL; } } int bwi_mac_fw_load(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; uint16_t fw_rev; const uint32_t *fw; int fw_len, i, error = 0; /* * Load FW image */ fw = (const uint32_t *)(mac->mac_ucode + BWI_FWHDR_SZ); fw_len = (mac->mac_ucode_size - BWI_FWHDR_SZ) / sizeof(uint32_t); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(BWI_FW_UCODE_MOBJ | BWI_WR_MOBJ_AUTOINC, 0)); for (i = 0; i < fw_len; ++i) { CSR_WRITE_4(sc, BWI_MOBJ_DATA, betoh32(fw[i])); DELAY(10); } /* * Load PCM image */ fw = (const uint32_t *)(mac->mac_pcm + BWI_FWHDR_SZ); fw_len = (mac->mac_pcm_size - BWI_FWHDR_SZ) / sizeof(uint32_t); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(BWI_FW_PCM_MOBJ, 0x01ea)); CSR_WRITE_4(sc, BWI_MOBJ_DATA, 0x4000); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(BWI_FW_PCM_MOBJ, 0x01eb)); for (i = 0; i < fw_len; ++i) { CSR_WRITE_4(sc, BWI_MOBJ_DATA, betoh32(fw[i])); DELAY(10); } CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_ALL_INTRS); CSR_WRITE_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_UCODE_START | BWI_MAC_STATUS_IHREN | BWI_MAC_STATUS_INFRA); #define NRETRY 200 for (i = 0; i < NRETRY; ++i) { uint32_t intr_status; intr_status = CSR_READ_4(sc, BWI_MAC_INTR_STATUS); if (intr_status == BWI_INTR_READY) break; DELAY(10); } if (i == NRETRY) { printf("%s: firmware (fw & pcm) loading timed out\n", sc->sc_dev.dv_xname); error = ETIMEDOUT; goto out; } #undef NRETRY CSR_READ_4(sc, BWI_MAC_INTR_STATUS); /* dummy read */ fw_rev = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_FWREV); if (fw_rev > BWI_FW_VERSION3_REVMAX) { printf("%s: firmware version 4 is not supported yet\n", sc->sc_dev.dv_xname); error = ENODEV; goto out; } DPRINTF(1, "%s: firmware rev 0x%04x, patch level 0x%04x\n", sc->sc_dev.dv_xname, fw_rev, MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_FWPATCHLV)); out: return (error); } int bwi_mac_gpio_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_regwin *old, *gpio_rw; uint32_t filt, bits; int error; CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_GPOSEL_MASK); /* TODO: LED */ CSR_SETBITS_2(sc, BWI_MAC_GPIO_MASK, 0xf); filt = 0x1f; bits = 0xf; if (sc->sc_bbp_id == BWI_BBPID_BCM4301) { filt |= 0x60; bits |= 0x60; } if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) { CSR_SETBITS_2(sc, BWI_MAC_GPIO_MASK, 0x200); filt |= 0x200; bits |= 0x200; } gpio_rw = BWI_GPIO_REGWIN(sc); error = bwi_regwin_switch(sc, gpio_rw, &old); if (error) return (error); CSR_FILT_SETBITS_4(sc, BWI_GPIO_CTRL, filt, bits); return (bwi_regwin_switch(sc, old, NULL)); } int bwi_mac_gpio_fini(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_regwin *old, *gpio_rw; int error; gpio_rw = BWI_GPIO_REGWIN(sc); error = bwi_regwin_switch(sc, gpio_rw, &old); if (error) return (error); CSR_WRITE_4(sc, BWI_GPIO_CTRL, 0); return (bwi_regwin_switch(sc, old, NULL)); } int bwi_mac_fw_load_iv(struct bwi_mac *mac, uint8_t *fw, size_t fw_len) { struct bwi_softc *sc = mac->mac_sc; const struct bwi_fwhdr *hdr; const struct bwi_fw_iv *iv; int n, i, iv_img_size; /* Get the number of IVs in the IV image */ hdr = (const struct bwi_fwhdr *)fw; n = betoh32(hdr->fw_iv_cnt); DPRINTF(1, "%s: IV count %d\n", sc->sc_dev.dv_xname, n); /* Calculate the IV image size, for later sanity check */ iv_img_size = fw_len - sizeof(*hdr); /* Locate the first IV */ iv = (const struct bwi_fw_iv *)(fw + sizeof(*hdr)); for (i = 0; i < n; ++i) { uint16_t iv_ofs, ofs; int sz = 0; if (iv_img_size < sizeof(iv->iv_ofs)) { printf("%s: invalid IV image, ofs\n", sc->sc_dev.dv_xname); return (EINVAL); } iv_img_size -= sizeof(iv->iv_ofs); sz += sizeof(iv->iv_ofs); iv_ofs = betoh16(iv->iv_ofs); ofs = __SHIFTOUT(iv_ofs, BWI_FW_IV_OFS_MASK); if (ofs >= 0x1000) { printf("%s: invalid ofs (0x%04x) for %dth iv\n", sc->sc_dev.dv_xname, ofs, i); return (EINVAL); } if (iv_ofs & BWI_FW_IV_IS_32BIT) { uint32_t val32; if (iv_img_size < sizeof(iv->iv_val.val32)) { printf("%s: invalid IV image, val32\n", sc->sc_dev.dv_xname); return (EINVAL); } iv_img_size -= sizeof(iv->iv_val.val32); sz += sizeof(iv->iv_val.val32); val32 = betoh32(iv->iv_val.val32); CSR_WRITE_4(sc, ofs, val32); } else { uint16_t val16; if (iv_img_size < sizeof(iv->iv_val.val16)) { printf("%s: invalid IV image, val16\n", sc->sc_dev.dv_xname); return (EINVAL); } iv_img_size -= sizeof(iv->iv_val.val16); sz += sizeof(iv->iv_val.val16); val16 = betoh16(iv->iv_val.val16); CSR_WRITE_2(sc, ofs, val16); } iv = (const struct bwi_fw_iv *)((const uint8_t *)iv + sz); } if (iv_img_size != 0) { printf("%s: invalid IV image, size left %d\n", sc->sc_dev.dv_xname, iv_img_size); return (EINVAL); } return (0); } int bwi_mac_fw_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; int error; error = bwi_mac_fw_load_iv(mac, mac->mac_iv, mac->mac_iv_size); if (error) { printf("%s: load IV failed\n", sc->sc_dev.dv_xname); return (error); } if (mac->mac_iv_ext != NULL) { error = bwi_mac_fw_load_iv(mac, mac->mac_iv_ext, mac->mac_iv_ext_size); if (error) printf("%s: load ExtIV failed\n", sc->sc_dev.dv_xname); } return (error); } void bwi_mac_opmode_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct ieee80211com *ic = &sc->sc_ic; uint32_t mac_status; uint16_t pre_tbtt; CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_INFRA); CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_INFRA); CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PASS_BCN); /* Set probe resp timeout to infinite */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_PROBE_RESP_TO, 0); /* * TODO: factor out following part */ mac_status = CSR_READ_4(sc, BWI_MAC_STATUS); mac_status &= ~(BWI_MAC_STATUS_OPMODE_HOSTAP | BWI_MAC_STATUS_PASS_CTL | BWI_MAC_STATUS_PASS_BADPLCP | BWI_MAC_STATUS_PASS_BADFCS | BWI_MAC_STATUS_PROMISC); mac_status |= BWI_MAC_STATUS_INFRA; /* Always turn on PROMISC on old hardware */ if (mac->mac_rev < 5) mac_status |= BWI_MAC_STATUS_PROMISC; switch (ic->ic_opmode) { case IEEE80211_M_IBSS: mac_status &= ~BWI_MAC_STATUS_INFRA; break; case IEEE80211_M_HOSTAP: mac_status |= BWI_MAC_STATUS_OPMODE_HOSTAP; break; case IEEE80211_M_MONITOR: #if 0 /* Do you want data from your microwave oven? */ mac_status |= BWI_MAC_STATUS_PASS_CTL | BWI_MAC_STATUS_PASS_BADPLCP | BWI_MAC_STATUS_PASS_BADFCS; #else mac_status |= BWI_MAC_STATUS_PASS_CTL; #endif /* Promisc? */ break; default: break; } if (ic->ic_if.if_flags & IFF_PROMISC) mac_status |= BWI_MAC_STATUS_PROMISC; CSR_WRITE_4(sc, BWI_MAC_STATUS, mac_status); if (ic->ic_opmode != IEEE80211_M_IBSS && ic->ic_opmode != IEEE80211_M_HOSTAP) { if (sc->sc_bbp_id == BWI_BBPID_BCM4306 && sc->sc_bbp_rev == 3) pre_tbtt = 100; else pre_tbtt = 50; } else pre_tbtt = 2; CSR_WRITE_2(sc, BWI_MAC_PRE_TBTT, pre_tbtt); } void bwi_mac_hostflags_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; uint64_t host_flags; if (phy->phy_mode == IEEE80211_MODE_11A) return; host_flags = HFLAGS_READ(mac); host_flags |= BWI_HFLAG_SYM_WA; if (phy->phy_mode == IEEE80211_MODE_11G) { if (phy->phy_rev == 1) host_flags |= BWI_HFLAG_GDC_WA; if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) host_flags |= BWI_HFLAG_OFDM_PA; } else if (phy->phy_mode == IEEE80211_MODE_11B) { if (phy->phy_rev >= 2 && rf->rf_type == BWI_RF_T_BCM2050) host_flags &= ~BWI_HFLAG_GDC_WA; } else { panic("unknown PHY mode %u\n", phy->phy_mode); } HFLAGS_WRITE(mac, host_flags); } void bwi_mac_bss_param_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_retry_lim lim; uint16_t cw_min; /* * Set short/long retry limits */ bzero(&lim, sizeof(lim)); lim.shretry = BWI_SHRETRY; lim.shretry_fb = BWI_SHRETRY_FB; lim.lgretry = BWI_LGRETRY; lim.lgretry_fb = BWI_LGRETRY_FB; bwi_mac_set_retry_lim(mac, &lim); /* * Implicitly prevent firmware from sending probe response * by setting its "probe response timeout" to 1us. */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_PROBE_RESP_TO, 1); /* * XXX MAC level acknowledge and CW min/max should depend * on the char rateset of the IBSS/BSS to join. */ /* * Set MAC level acknowledge rates */ bwi_mac_set_ackrates(mac, &sc->sc_ic.ic_sup_rates[phy->phy_mode]); /* * Set CW min */ if (phy->phy_mode == IEEE80211_MODE_11B) cw_min = IEEE80211_CW_MIN_0; else cw_min = IEEE80211_CW_MIN_1; MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_CWMIN, cw_min); /* * Set CW max */ MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_CWMAX, IEEE80211_CW_MAX); } void bwi_mac_set_retry_lim(struct bwi_mac *mac, const struct bwi_retry_lim *lim) { /* Short/Long retry limit */ MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_SHRETRY, lim->shretry); MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_LGRETRY, lim->lgretry); /* Short/Long retry fallback limit */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_SHRETRY_FB, lim->shretry_fb); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_LGRETEY_FB, lim->lgretry_fb); } void bwi_mac_set_ackrates(struct bwi_mac *mac, const struct ieee80211_rateset *rs) { struct bwi_softc *sc; int i; sc = mac->mac_sc; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); /* XXX not standard conforming */ for (i = 0; i < rs->rs_nrates; ++i) { enum bwi_modtype modtype; uint16_t ofs; modtype = bwi_rate2modtype(rs->rs_rates[i]); switch (modtype) { case IEEE80211_MODTYPE_DS: ofs = 0x4c0; ofs += (ieee80211_rate2plcp(rs->rs_rates[i], IEEE80211_MODE_11B) & 0xf) * 2; break; case IEEE80211_MODTYPE_OFDM: ofs = 0x480; ofs += (ieee80211_rate2plcp(rs->rs_rates[i], IEEE80211_MODE_11G) & 0xf) * 2; break; default: panic("unsupported modtype %u\n", modtype); } MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, ofs + 0x20, MOBJ_READ_2(mac, BWI_COMM_MOBJ, ofs)); } } int bwi_mac_start(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_ENABLE); CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_INTR_READY); /* Flush pending bus writes */ CSR_READ_4(sc, BWI_MAC_STATUS); CSR_READ_4(sc, BWI_MAC_INTR_STATUS); return (bwi_mac_config_ps(mac)); } int bwi_mac_stop(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; int error, i; error = bwi_mac_config_ps(mac); if (error) return (error); CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_ENABLE); /* Flush pending bus write */ CSR_READ_4(sc, BWI_MAC_STATUS); #define NRETRY 10000 for (i = 0; i < NRETRY; ++i) { if (CSR_READ_4(sc, BWI_MAC_INTR_STATUS) & BWI_INTR_READY) break; DELAY(1); } if (i == NRETRY) { printf("%s: can't stop MAC\n", sc->sc_dev.dv_xname); return (ETIMEDOUT); } #undef NRETRY return (0); } int bwi_mac_config_ps(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; uint32_t status; status = CSR_READ_4(sc, BWI_MAC_STATUS); status &= ~BWI_MAC_STATUS_HW_PS; status |= BWI_MAC_STATUS_WAKEUP; CSR_WRITE_4(sc, BWI_MAC_STATUS, status); /* Flush pending bus write */ CSR_READ_4(sc, BWI_MAC_STATUS); if (mac->mac_rev >= 5) { int i; #define NRETRY 100 for (i = 0; i < NRETRY; ++i) { if (MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_UCODE_STATE) != BWI_UCODE_STATE_PS) break; DELAY(10); } if (i == NRETRY) { printf("%s: config PS failed\n", sc->sc_dev.dv_xname); return (ETIMEDOUT); } #undef NRETRY } return (0); } void bwi_mac_reset_hwkeys(struct bwi_mac *mac) { /* TODO: firmware crypto */ MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_KEYTABLE_OFS); } void bwi_mac_shutdown(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; int i; if (mac->mac_flags & BWI_MAC_F_HAS_TXSTATS) sc->sc_free_txstats(sc); sc->sc_free_rx_ring(sc); for (i = 0; i < BWI_TX_NRING; ++i) sc->sc_free_tx_ring(sc, i); bwi_rf_off(mac); /* TODO: LED */ bwi_mac_gpio_fini(mac); bwi_rf_off(mac); /* XXX again */ CSR_WRITE_2(sc, BWI_BBP_ATTEN, BWI_BBP_ATTEN_MAGIC); bwi_regwin_disable(sc, &mac->mac_regwin, 0); mac->mac_flags &= ~BWI_MAC_F_INITED; } int bwi_mac_get_property(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; enum bwi_bus_space old_bus_space; uint32_t val; /* * Byte swap */ val = CSR_READ_4(sc, BWI_MAC_STATUS); if (val & BWI_MAC_STATUS_BSWAP) { DPRINTF(1, "%s: need byte swap\n", sc->sc_dev.dv_xname); mac->mac_flags |= BWI_MAC_F_BSWAP; } /* * DMA address space */ old_bus_space = sc->sc_bus_space; val = CSR_READ_4(sc, BWI_STATE_HI); if (__SHIFTOUT(val, BWI_STATE_HI_FLAGS_MASK) & BWI_STATE_HI_FLAG_64BIT) { /* 64bit address */ sc->sc_bus_space = BWI_BUS_SPACE_64BIT; DPRINTF(1, "%s: 64bit bus space\n", sc->sc_dev.dv_xname); } else { uint32_t txrx_reg = BWI_TXRX_CTRL_BASE + BWI_TX32_CTRL; CSR_WRITE_4(sc, txrx_reg, BWI_TXRX32_CTRL_ADDRHI_MASK); if (CSR_READ_4(sc, txrx_reg) & BWI_TXRX32_CTRL_ADDRHI_MASK) { /* 32bit address */ sc->sc_bus_space = BWI_BUS_SPACE_32BIT; DPRINTF(1, "%s: 32bit bus space\n", sc->sc_dev.dv_xname); } else { /* 30bit address */ sc->sc_bus_space = BWI_BUS_SPACE_30BIT; DPRINTF(1, "%s: 30bit bus space\n", sc->sc_dev.dv_xname); } } if (old_bus_space != 0 && old_bus_space != sc->sc_bus_space) { printf("%s: MACs bus space mismatch!\n", sc->sc_dev.dv_xname); return (ENXIO); } return (0); } #define IEEE80211_DUR_SLOT 20 /* DS/CCK slottime, ERP long slottime */ #define IEEE80211_DUR_SHSLOT 9 /* ERP short slottime */ void bwi_mac_updateslot(struct bwi_mac *mac, int shslot) { struct bwi_softc *sc; uint16_t slot_time; sc = mac->mac_sc; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); if (mac->mac_phy.phy_mode == IEEE80211_MODE_11B) return; if (shslot) slot_time = IEEE80211_DUR_SHSLOT; else slot_time = IEEE80211_DUR_SLOT; CSR_WRITE_2(mac->mac_sc, BWI_MAC_SLOTTIME, slot_time + BWI_MAC_SLOTTIME_ADJUST); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_SLOTTIME, slot_time); } int bwi_mac_attach(struct bwi_softc *sc, int id, uint8_t rev) { struct bwi_mac *mac; int i; KASSERT(sc->sc_nmac <= BWI_MAC_MAX && sc->sc_nmac >= 0); if (sc->sc_nmac == BWI_MAC_MAX) { printf("%s: too many MACs\n", sc->sc_dev.dv_xname); return (0); } /* * More than one MAC is only supported by BCM4309 */ if (sc->sc_nmac != 0 && sc->sc_pci_did != PCI_PRODUCT_BROADCOM_BCM4309) { DPRINTF(1, "%s: ignore second MAC\n", sc->sc_dev.dv_xname); return (0); } mac = &sc->sc_mac[sc->sc_nmac]; /* XXX will this happen? */ if (BWI_REGWIN_EXIST(&mac->mac_regwin)) { printf("%s: %dth MAC already attached\n", sc->sc_dev.dv_xname, sc->sc_nmac); return (0); } /* * Test whether the revision of this MAC is supported */ #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) for (i = 0; i < N(bwi_sup_macrev); ++i) { if (bwi_sup_macrev[i] == rev) break; } if (i == N(bwi_sup_macrev)) { printf("%s: MAC rev %u is not supported\n", sc->sc_dev.dv_xname, rev); return (ENXIO); } #undef N BWI_CREATE_MAC(mac, sc, id, rev); sc->sc_nmac++; if (mac->mac_rev < 5) { mac->mac_flags |= BWI_MAC_F_HAS_TXSTATS; DPRINTF(1, "%s: has TX stats\n", sc->sc_dev.dv_xname); } else { mac->mac_flags |= BWI_MAC_F_PHYE_RESET; } return (0); } void bwi_mac_balance_atten(int *bbp_atten0, int *rf_atten0) { int bbp_atten, rf_atten, rf_atten_lim = -1; bbp_atten = *bbp_atten0; rf_atten = *rf_atten0; /* * RF attenuation affects TX power BWI_RF_ATTEN_FACTOR times * as much as BBP attenuation, so we try our best to keep RF * attenuation within range. BBP attenuation will be clamped * later if it is out of range during balancing. * * BWI_RF_ATTEN_MAX0 is used as RF attenuation upper limit. */ /* * Use BBP attenuation to balance RF attenuation */ if (rf_atten < 0) rf_atten_lim = 0; else if (rf_atten > BWI_RF_ATTEN_MAX0) rf_atten_lim = BWI_RF_ATTEN_MAX0; if (rf_atten_lim >= 0) { bbp_atten += (BWI_RF_ATTEN_FACTOR * (rf_atten - rf_atten_lim)); rf_atten = rf_atten_lim; } /* * If possible, use RF attenuation to balance BBP attenuation * NOTE: RF attenuation is still kept within range. */ while (rf_atten < BWI_RF_ATTEN_MAX0 && bbp_atten > BWI_BBP_ATTEN_MAX) { bbp_atten -= BWI_RF_ATTEN_FACTOR; ++rf_atten; } while (rf_atten > 0 && bbp_atten < 0) { bbp_atten += BWI_RF_ATTEN_FACTOR; --rf_atten; } /* RF attenuation MUST be within range */ KASSERT(rf_atten >= 0 && rf_atten <= BWI_RF_ATTEN_MAX0); /* * Clamp BBP attenuation */ if (bbp_atten < 0) bbp_atten = 0; else if (bbp_atten > BWI_BBP_ATTEN_MAX) bbp_atten = BWI_BBP_ATTEN_MAX; *rf_atten0 = rf_atten; *bbp_atten0 = bbp_atten; } void bwi_mac_adjust_tpctl(struct bwi_mac *mac, int rf_atten_adj, int bbp_atten_adj) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_tpctl tpctl; int bbp_atten, rf_atten, tp_ctrl1; bcopy(&mac->mac_tpctl, &tpctl, sizeof(tpctl)); /* NOTE: Use signed value to do calulation */ bbp_atten = tpctl.bbp_atten; rf_atten = tpctl.rf_atten; tp_ctrl1 = tpctl.tp_ctrl1; bbp_atten += bbp_atten_adj; rf_atten += rf_atten_adj; bwi_mac_balance_atten(&bbp_atten, &rf_atten); if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev == 2) { if (rf_atten <= 1) { if (tp_ctrl1 == 0) { tp_ctrl1 = 3; bbp_atten += 2; rf_atten += 2; } else if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) { bbp_atten += (BWI_RF_ATTEN_FACTOR * (rf_atten - 2)); rf_atten = 2; } } else if (rf_atten > 4 && tp_ctrl1 != 0) { tp_ctrl1 = 0; if (bbp_atten < 3) { bbp_atten += 2; rf_atten -= 3; } else { bbp_atten -= 2; rf_atten -= 2; } } bwi_mac_balance_atten(&bbp_atten, &rf_atten); } tpctl.bbp_atten = bbp_atten; tpctl.rf_atten = rf_atten; tpctl.tp_ctrl1 = tp_ctrl1; bwi_mac_lock(mac); bwi_mac_set_tpctl_11bg(mac, &tpctl); bwi_mac_unlock(mac); } /* * http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */ void bwi_mac_calibrate_txpower(struct bwi_mac *mac, enum bwi_txpwrcb_type type) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; int8_t tssi[4], tssi_avg, cur_txpwr; int error, i, ofdm_tssi; int txpwr_diff, rf_atten_adj, bbp_atten_adj; if (mac->mac_flags & BWI_MAC_F_TPCTL_ERROR) { DPRINTF(1, "%s: tpctl error happened, can't set txpower\n", sc->sc_dev.dv_xname); return; } if (BWI_IS_BRCM_BU4306(sc)) { DPRINTF(1, "%s: BU4306, can't set txpower\n", sc->sc_dev.dv_xname); return; } /* * Save latest TSSI and reset the related memory objects */ ofdm_tssi = 0; error = bwi_rf_get_latest_tssi(mac, tssi, BWI_COMM_MOBJ_TSSI_DS); if (error) { DPRINTF(1, "%s: no DS tssi\n", sc->sc_dev.dv_xname); if (mac->mac_phy.phy_mode == IEEE80211_MODE_11B) { if (type == BWI_TXPWR_FORCE) { rf_atten_adj = 0; bbp_atten_adj = 1; goto calib; } else { return; } } error = bwi_rf_get_latest_tssi(mac, tssi, BWI_COMM_MOBJ_TSSI_OFDM); if (error) { DPRINTF(1, "%s: no OFDM tssi\n", sc->sc_dev.dv_xname); if (type == BWI_TXPWR_FORCE) { rf_atten_adj = 0; bbp_atten_adj = 1; goto calib; } else { return; } } for (i = 0; i < 4; ++i) { tssi[i] += 0x20; tssi[i] &= 0x3f; } ofdm_tssi = 1; } bwi_rf_clear_tssi(mac); DPRINTF(1, "%s: tssi0 %d, tssi1 %d, tssi2 %d, tssi3 %d\n", sc->sc_dev.dv_xname, tssi[0], tssi[1], tssi[2], tssi[3]); /* * Calculate RF/BBP attenuation adjustment based on * the difference between desired TX power and sampled * TX power. */ /* +8 == "each incremented by 1/2" */ tssi_avg = (tssi[0] + tssi[1] + tssi[2] + tssi[3] + 8) / 4; if (ofdm_tssi && (HFLAGS_READ(mac) & BWI_HFLAG_PWR_BOOST_DS)) tssi_avg -= 13; DPRINTF(1, "%s: tssi avg %d\n", sc->sc_dev.dv_xname, tssi_avg); error = bwi_rf_tssi2dbm(mac, tssi_avg, &cur_txpwr); if (error) return; DPRINTF(1, "%s: current txpower %d\n", sc->sc_dev.dv_xname, cur_txpwr); txpwr_diff = rf->rf_txpower_max - cur_txpwr; /* XXX ni_txpower */ rf_atten_adj = -howmany(txpwr_diff, 8); if (type == BWI_TXPWR_INIT) { /* * Move toward EEPROM max TX power as fast as we can */ bbp_atten_adj = -txpwr_diff; } else { bbp_atten_adj = -(txpwr_diff / 2); } bbp_atten_adj -= (BWI_RF_ATTEN_FACTOR * rf_atten_adj); if (rf_atten_adj == 0 && bbp_atten_adj == 0) { DPRINTF(1, "%s: no need to adjust RF/BBP attenuation\n", sc->sc_dev.dv_xname); /* TODO: LO */ return; } calib: DPRINTF(1, "%s: rf atten adjust %d, bbp atten adjust %d\n", sc->sc_dev.dv_xname, rf_atten_adj, bbp_atten_adj); bwi_mac_adjust_tpctl(mac, rf_atten_adj, bbp_atten_adj); /* TODO: LO */ } void bwi_mac_lock(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct ieee80211com *ic = &sc->sc_ic; KASSERT((mac->mac_flags & BWI_MAC_F_LOCKED) == 0); if (mac->mac_rev < 3) bwi_mac_stop(mac); else if (ic->ic_opmode != IEEE80211_M_HOSTAP) bwi_mac_config_ps(mac); CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_RFLOCK); /* Flush pending bus write */ CSR_READ_4(sc, BWI_MAC_STATUS); DELAY(10); mac->mac_flags |= BWI_MAC_F_LOCKED; } void bwi_mac_unlock(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct ieee80211com *ic = &sc->sc_ic; KASSERT(mac->mac_flags & BWI_MAC_F_LOCKED); CSR_READ_2(sc, BWI_PHYINFO); /* dummy read */ CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_RFLOCK); if (mac->mac_rev < 3) bwi_mac_start(mac); else if (ic->ic_opmode != IEEE80211_M_HOSTAP) bwi_mac_config_ps(mac); mac->mac_flags &= ~BWI_MAC_F_LOCKED; } void bwi_mac_set_promisc(struct bwi_mac *mac, int promisc) { struct bwi_softc *sc = mac->mac_sc; if (mac->mac_rev < 5) /* Promisc is always on */ return; if (promisc) CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PROMISC); else CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PROMISC); } /* PHY */ void bwi_phy_write(struct bwi_mac *mac, uint16_t ctrl, uint16_t data) { struct bwi_softc *sc = mac->mac_sc; /* TODO: 11A */ CSR_WRITE_2(sc, BWI_PHY_CTRL, ctrl); CSR_WRITE_2(sc, BWI_PHY_DATA, data); } uint16_t bwi_phy_read(struct bwi_mac *mac, uint16_t ctrl) { struct bwi_softc *sc = mac->mac_sc; /* TODO: 11A */ CSR_WRITE_2(sc, BWI_PHY_CTRL, ctrl); return (CSR_READ_2(sc, BWI_PHY_DATA)); } int bwi_phy_attach(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; uint8_t phyrev, phytype, phyver; uint16_t val; int i; /* Get PHY type/revision/version */ val = CSR_READ_2(sc, BWI_PHYINFO); phyrev = __SHIFTOUT(val, BWI_PHYINFO_REV_MASK); phytype = __SHIFTOUT(val, BWI_PHYINFO_TYPE_MASK); phyver = __SHIFTOUT(val, BWI_PHYINFO_VER_MASK); DPRINTF(1, "%s: PHY type %d, rev %d, ver %d\n", sc->sc_dev.dv_xname, phytype, phyrev, phyver); /* * Verify whether the revision of the PHY type is supported * Convert PHY type to ieee80211_phymode */ switch (phytype) { case BWI_PHYINFO_TYPE_11A: if (phyrev >= 4) { printf("%s: unsupported 11A PHY, rev %u\n", sc->sc_dev.dv_xname, phyrev); return (ENXIO); } phy->phy_init = bwi_phy_init_11a; phy->phy_mode = IEEE80211_MODE_11A; phy->phy_tbl_ctrl = BWI_PHYR_TBL_CTRL_11A; phy->phy_tbl_data_lo = BWI_PHYR_TBL_DATA_LO_11A; phy->phy_tbl_data_hi = BWI_PHYR_TBL_DATA_HI_11A; break; case BWI_PHYINFO_TYPE_11B: #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) for (i = 0; i < N(bwi_sup_bphy); ++i) { if (phyrev == bwi_sup_bphy[i].rev) { phy->phy_init = bwi_sup_bphy[i].init; break; } } if (i == N(bwi_sup_bphy)) { printf("%s: unsupported 11B PHY, rev %u\n", sc->sc_dev.dv_xname, phyrev); return (ENXIO); } #undef N phy->phy_mode = IEEE80211_MODE_11B; break; case BWI_PHYINFO_TYPE_11G: if (phyrev > 8) { printf("%s: unsupported 11G PHY, rev %u\n", sc->sc_dev.dv_xname, phyrev); return (ENXIO); } phy->phy_init = bwi_phy_init_11g; phy->phy_mode = IEEE80211_MODE_11G; phy->phy_tbl_ctrl = BWI_PHYR_TBL_CTRL_11G; phy->phy_tbl_data_lo = BWI_PHYR_TBL_DATA_LO_11G; phy->phy_tbl_data_hi = BWI_PHYR_TBL_DATA_HI_11G; break; default: printf("%s: unsupported PHY type %d\n", sc->sc_dev.dv_xname, phytype); return (ENXIO); } phy->phy_rev = phyrev; phy->phy_version = phyver; return (0); } void bwi_phy_set_bbp_atten(struct bwi_mac *mac, uint16_t bbp_atten) { struct bwi_phy *phy = &mac->mac_phy; uint16_t mask = 0x000f; if (phy->phy_version == 0) { CSR_FILT_SETBITS_2(mac->mac_sc, BWI_BBP_ATTEN, ~mask, __SHIFTIN(bbp_atten, mask)); } else { if (phy->phy_version > 1) mask <<= 2; else mask <<= 3; PHY_FILT_SETBITS(mac, BWI_PHYR_BBP_ATTEN, ~mask, __SHIFTIN(bbp_atten, mask)); } } int bwi_phy_calibrate(struct bwi_mac *mac) { struct bwi_phy *phy = &mac->mac_phy; /* Dummy read */ CSR_READ_4(mac->mac_sc, BWI_MAC_STATUS); /* Don't re-init */ if (phy->phy_flags & BWI_PHY_F_CALIBRATED) return (0); if (phy->phy_mode == IEEE80211_MODE_11G && phy->phy_rev == 1) { bwi_mac_reset(mac, 0); bwi_phy_init_11g(mac); bwi_mac_reset(mac, 1); } phy->phy_flags |= BWI_PHY_F_CALIBRATED; return (0); } void bwi_tbl_write_2(struct bwi_mac *mac, uint16_t ofs, uint16_t data) { struct bwi_phy *phy = &mac->mac_phy; KASSERT(phy->phy_tbl_ctrl != 0 && phy->phy_tbl_data_lo != 0); PHY_WRITE(mac, phy->phy_tbl_ctrl, ofs); PHY_WRITE(mac, phy->phy_tbl_data_lo, data); } void bwi_tbl_write_4(struct bwi_mac *mac, uint16_t ofs, uint32_t data) { struct bwi_phy *phy = &mac->mac_phy; KASSERT(phy->phy_tbl_data_lo != 0 && phy->phy_tbl_data_hi != 0 && phy->phy_tbl_ctrl != 0); PHY_WRITE(mac, phy->phy_tbl_ctrl, ofs); PHY_WRITE(mac, phy->phy_tbl_data_hi, data >> 16); PHY_WRITE(mac, phy->phy_tbl_data_lo, data & 0xffff); } void bwi_nrssi_write(struct bwi_mac *mac, uint16_t ofs, int16_t data) { PHY_WRITE(mac, BWI_PHYR_NRSSI_CTRL, ofs); PHY_WRITE(mac, BWI_PHYR_NRSSI_DATA, (uint16_t)data); } int16_t bwi_nrssi_read(struct bwi_mac *mac, uint16_t ofs) { PHY_WRITE(mac, BWI_PHYR_NRSSI_CTRL, ofs); return ((int16_t)PHY_READ(mac, BWI_PHYR_NRSSI_DATA)); } void bwi_phy_init_11a(struct bwi_mac *mac) { /* TODO: 11A */ } void bwi_phy_init_11g(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; const struct bwi_tpctl *tpctl = &mac->mac_tpctl; if (phy->phy_rev == 1) bwi_phy_init_11b_rev5(mac); else bwi_phy_init_11b_rev6(mac); if (phy->phy_rev >= 2 || (phy->phy_flags & BWI_PHY_F_LINKED)) bwi_phy_config_11g(mac); if (phy->phy_rev >= 2) { PHY_WRITE(mac, 0x814, 0); PHY_WRITE(mac, 0x815, 0); if (phy->phy_rev == 2) { PHY_WRITE(mac, 0x811, 0); PHY_WRITE(mac, 0x15, 0xc0); } else if (phy->phy_rev > 5) { PHY_WRITE(mac, 0x811, 0x400); PHY_WRITE(mac, 0x15, 0xc0); } } if (phy->phy_rev >= 2 || (phy->phy_flags & BWI_PHY_F_LINKED)) { uint16_t val; val = PHY_READ(mac, 0x400) & 0xff; if (val == 3 || val == 5) { PHY_WRITE(mac, 0x4c2, 0x1816); PHY_WRITE(mac, 0x4c3, 0x8006); if (val == 5) { PHY_FILT_SETBITS(mac, 0x4cc, 0xff, 0x1f00); } } } if ((phy->phy_rev <= 2 && (phy->phy_flags & BWI_PHY_F_LINKED)) || phy->phy_rev >= 2) PHY_WRITE(mac, 0x47e, 0x78); if (rf->rf_rev == 8) { PHY_SETBITS(mac, 0x801, 0x80); PHY_SETBITS(mac, 0x43e, 0x4); } if (phy->phy_rev >= 2 && (phy->phy_flags & BWI_PHY_F_LINKED)) bwi_rf_get_gains(mac); if (rf->rf_rev != 8) bwi_rf_init(mac); if (tpctl->tp_ctrl2 == 0xffff) { bwi_rf_lo_update(mac); } else { if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev == 8) { RF_WRITE(mac, 0x52, (tpctl->tp_ctrl1 << 4) | tpctl->tp_ctrl2); } else { RF_FILT_SETBITS(mac, 0x52, 0xfff0, tpctl->tp_ctrl1); } if (phy->phy_rev >= 6) { PHY_FILT_SETBITS(mac, 0x36, 0xfff, tpctl->tp_ctrl2 << 12); } if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) PHY_WRITE(mac, 0x2e, 0x8075); else PHY_WRITE(mac, 0x2e, 0x807f); if (phy->phy_rev < 2) PHY_WRITE(mac, 0x2f, 0x101); else PHY_WRITE(mac, 0x2f, 0x202); } if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { bwi_rf_lo_adjust(mac, tpctl); PHY_WRITE(mac, 0x80f, 0x8078); } if ((sc->sc_card_flags & BWI_CARD_F_SW_NRSSI) == 0) { bwi_rf_init_hw_nrssi_table(mac, 0xffff /* XXX */); bwi_rf_set_nrssi_thr(mac); } else if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { if (rf->rf_nrssi[0] == BWI_INVALID_NRSSI) { KASSERT(rf->rf_nrssi[1] == BWI_INVALID_NRSSI); bwi_rf_calc_nrssi_slope(mac); } else { KASSERT(rf->rf_nrssi[1] != BWI_INVALID_NRSSI); bwi_rf_set_nrssi_thr(mac); } } if (rf->rf_rev == 8) PHY_WRITE(mac, 0x805, 0x3230); bwi_mac_init_tpctl_11bg(mac); if (sc->sc_bbp_id == BWI_BBPID_BCM4306 && sc->sc_bbp_pkg == 2) { PHY_CLRBITS(mac, 0x429, 0x4000); PHY_CLRBITS(mac, 0x4c3, 0x8000); } } void bwi_phy_init_11b_rev2(struct bwi_mac *mac) { struct bwi_softc *sc; sc = mac->mac_sc; /* TODO: 11B */ printf("%s: %s is not implemented yet\n", sc->sc_dev.dv_xname, __func__); } void bwi_phy_init_11b_rev4(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; uint16_t val, ofs; u_int chan; CSR_WRITE_2(sc, BWI_BPHY_CTRL, BWI_BPHY_CTRL_INIT); PHY_WRITE(mac, 0x20, 0x301c); PHY_WRITE(mac, 0x26, 0); PHY_WRITE(mac, 0x30, 0xc6); PHY_WRITE(mac, 0x88, 0x3e00); for (ofs = 0, val = 0x3c3d; ofs < 30; ++ofs, val -= 0x202) PHY_WRITE(mac, 0x89 + ofs, val); CSR_WRITE_2(sc, BWI_PHY_MAGIC_REG1, BWI_PHY_MAGIC_REG1_VAL1); chan = rf->rf_curchan; if (chan == IEEE80211_CHAN_ANY) chan = 6; /* Force to channel 6 */ bwi_rf_set_chan(mac, chan, 0); if (rf->rf_type != BWI_RF_T_BCM2050) { RF_WRITE(mac, 0x75, 0x80); RF_WRITE(mac, 0x79, 0x81); } RF_WRITE(mac, 0x50, 0x20); RF_WRITE(mac, 0x50, 0x23); if (rf->rf_type == BWI_RF_T_BCM2050) { RF_WRITE(mac, 0x50, 0x20); RF_WRITE(mac, 0x5a, 0x70); RF_WRITE(mac, 0x5b, 0x7b); RF_WRITE(mac, 0x5c, 0xb0); RF_WRITE(mac, 0x7a, 0xf); PHY_WRITE(mac, 0x38, 0x677); bwi_rf_init_bcm2050(mac); } PHY_WRITE(mac, 0x14, 0x80); PHY_WRITE(mac, 0x32, 0xca); if (rf->rf_type == BWI_RF_T_BCM2050) PHY_WRITE(mac, 0x32, 0xe0); PHY_WRITE(mac, 0x35, 0x7c2); bwi_rf_lo_update(mac); PHY_WRITE(mac, 0x26, 0xcc00); if (rf->rf_type == BWI_RF_T_BCM2050) PHY_WRITE(mac, 0x26, 0xce00); CSR_WRITE_2(sc, BWI_RF_CHAN_EX, 0x1100); PHY_WRITE(mac, 0x2a, 0x88a3); if (rf->rf_type == BWI_RF_T_BCM2050) PHY_WRITE(mac, 0x2a, 0x88c2); bwi_mac_set_tpctl_11bg(mac, NULL); if (sc->sc_card_flags & BWI_CARD_F_SW_NRSSI) { bwi_rf_calc_nrssi_slope(mac); bwi_rf_set_nrssi_thr(mac); } bwi_mac_init_tpctl_11bg(mac); } void bwi_phy_init_11b_rev5(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_phy *phy = &mac->mac_phy; uint orig_chan; if (phy->phy_version == 1) RF_SETBITS(mac, 0x7a, 0x50); if (sc->sc_pci_subvid != PCI_VENDOR_BROADCOM && sc->sc_pci_subdid != BWI_PCI_SUBDEVICE_BU4306) { uint16_t ofs, val; val = 0x2120; for (ofs = 0xa8; ofs < 0xc7; ++ofs) { PHY_WRITE(mac, ofs, val); val += 0x202; } } PHY_FILT_SETBITS(mac, 0x35, 0xf0ff, 0x700); if (rf->rf_type == BWI_RF_T_BCM2050) PHY_WRITE(mac, 0x38, 0x667); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { if (rf->rf_type == BWI_RF_T_BCM2050) { RF_SETBITS(mac, 0x7a, 0x20); RF_SETBITS(mac, 0x51, 0x4); } CSR_WRITE_2(sc, BWI_RF_ANTDIV, 0); PHY_SETBITS(mac, 0x802, 0x100); PHY_SETBITS(mac, 0x42b, 0x2000); PHY_WRITE(mac, 0x1c, 0x186a); PHY_FILT_SETBITS(mac, 0x13, 0xff, 0x1900); PHY_FILT_SETBITS(mac, 0x35, 0xffc0, 0x64); PHY_FILT_SETBITS(mac, 0x5d, 0xff80, 0xa); } /* TODO: bad_frame_preempt? */ if (phy->phy_version == 1) { PHY_WRITE(mac, 0x26, 0xce00); PHY_WRITE(mac, 0x21, 0x3763); PHY_WRITE(mac, 0x22, 0x1bc3); PHY_WRITE(mac, 0x23, 0x6f9); PHY_WRITE(mac, 0x24, 0x37e); } else PHY_WRITE(mac, 0x26, 0xcc00); PHY_WRITE(mac, 0x30, 0xc6); CSR_WRITE_2(sc, BWI_BPHY_CTRL, BWI_BPHY_CTRL_INIT); if (phy->phy_version == 1) PHY_WRITE(mac, 0x20, 0x3e1c); else PHY_WRITE(mac, 0x20, 0x301c); if (phy->phy_version == 0) CSR_WRITE_2(sc, BWI_PHY_MAGIC_REG1, BWI_PHY_MAGIC_REG1_VAL1); /* Force to channel 7 */ orig_chan = rf->rf_curchan; bwi_rf_set_chan(mac, 7, 0); if (rf->rf_type != BWI_RF_T_BCM2050) { RF_WRITE(mac, 0x75, 0x80); RF_WRITE(mac, 0x79, 0x81); } RF_WRITE(mac, 0x50, 0x20); RF_WRITE(mac, 0x50, 0x23); if (rf->rf_type == BWI_RF_T_BCM2050) { RF_WRITE(mac, 0x50, 0x20); RF_WRITE(mac, 0x5a, 0x70); } RF_WRITE(mac, 0x5b, 0x7b); RF_WRITE(mac, 0x5c, 0xb0); RF_SETBITS(mac, 0x7a, 0x7); bwi_rf_set_chan(mac, orig_chan, 0); PHY_WRITE(mac, 0x14, 0x80); PHY_WRITE(mac, 0x32, 0xca); PHY_WRITE(mac, 0x2a, 0x88a3); bwi_mac_set_tpctl_11bg(mac, NULL); if (rf->rf_type == BWI_RF_T_BCM2050) RF_WRITE(mac, 0x5d, 0xd); CSR_FILT_SETBITS_2(sc, BWI_PHY_MAGIC_REG1, 0xffc0, 0x4); } void bwi_phy_init_11b_rev6(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_phy *phy = &mac->mac_phy; uint16_t val, ofs; uint orig_chan; PHY_WRITE(mac, 0x3e, 0x817a); RF_SETBITS(mac, 0x7a, 0x58); if (rf->rf_rev == 4 || rf->rf_rev == 5) { RF_WRITE(mac, 0x51, 0x37); RF_WRITE(mac, 0x52, 0x70); RF_WRITE(mac, 0x53, 0xb3); RF_WRITE(mac, 0x54, 0x9b); RF_WRITE(mac, 0x5a, 0x88); RF_WRITE(mac, 0x5b, 0x88); RF_WRITE(mac, 0x5d, 0x88); RF_WRITE(mac, 0x5e, 0x88); RF_WRITE(mac, 0x7d, 0x88); HFLAGS_SETBITS(mac, BWI_HFLAG_MAGIC1); } else if (rf->rf_rev == 8) { RF_WRITE(mac, 0x51, 0); RF_WRITE(mac, 0x52, 0x40); RF_WRITE(mac, 0x53, 0xb7); RF_WRITE(mac, 0x54, 0x98); RF_WRITE(mac, 0x5a, 0x88); RF_WRITE(mac, 0x5b, 0x6b); RF_WRITE(mac, 0x5c, 0xf); if (sc->sc_card_flags & BWI_CARD_F_ALT_IQ) { RF_WRITE(mac, 0x5d, 0xfa); RF_WRITE(mac, 0x5e, 0xd8); } else { RF_WRITE(mac, 0x5d, 0xf5); RF_WRITE(mac, 0x5e, 0xb8); } RF_WRITE(mac, 0x73, 0x3); RF_WRITE(mac, 0x7d, 0xa8); RF_WRITE(mac, 0x7c, 0x1); RF_WRITE(mac, 0x7e, 0x8); } val = 0x1e1f; for (ofs = 0x88; ofs < 0x98; ++ofs) { PHY_WRITE(mac, ofs, val); val -= 0x202; } val = 0x3e3f; for (ofs = 0x98; ofs < 0xa8; ++ofs) { PHY_WRITE(mac, ofs, val); val -= 0x202; } val = 0x2120; for (ofs = 0xa8; ofs < 0xc8; ++ofs) { PHY_WRITE(mac, ofs, (val & 0x3f3f)); val += 0x202; } if (phy->phy_mode == IEEE80211_MODE_11G) { RF_SETBITS(mac, 0x7a, 0x20); RF_SETBITS(mac, 0x51, 0x4); PHY_SETBITS(mac, 0x802, 0x100); PHY_SETBITS(mac, 0x42b, 0x2000); PHY_WRITE(mac, 0x5b, 0); PHY_WRITE(mac, 0x5c, 0); } /* Force to channel 7 */ orig_chan = rf->rf_curchan; if (orig_chan >= 8) bwi_rf_set_chan(mac, 1, 0); else bwi_rf_set_chan(mac, 13, 0); RF_WRITE(mac, 0x50, 0x20); RF_WRITE(mac, 0x50, 0x23); DELAY(40); if (rf->rf_rev < 6 || rf->rf_rev == 8) { RF_SETBITS(mac, 0x7c, 0x2); RF_WRITE(mac, 0x50, 0x20); } if (rf->rf_rev <= 2) { RF_WRITE(mac, 0x7c, 0x20); RF_WRITE(mac, 0x5a, 0x70); RF_WRITE(mac, 0x5b, 0x7b); RF_WRITE(mac, 0x5c, 0xb0); } RF_FILT_SETBITS(mac, 0x7a, 0xf8, 0x7); bwi_rf_set_chan(mac, orig_chan, 0); PHY_WRITE(mac, 0x14, 0x200); if (rf->rf_rev >= 6) PHY_WRITE(mac, 0x2a, 0x88c2); else PHY_WRITE(mac, 0x2a, 0x8ac0); PHY_WRITE(mac, 0x38, 0x668); bwi_mac_set_tpctl_11bg(mac, NULL); if (rf->rf_rev <= 5) { PHY_FILT_SETBITS(mac, 0x5d, 0xff80, 0x3); if (rf->rf_rev <= 2) RF_WRITE(mac, 0x5d, 0xd); } if (phy->phy_version == 4) { CSR_WRITE_2(sc, BWI_PHY_MAGIC_REG1, BWI_PHY_MAGIC_REG1_VAL2); PHY_CLRBITS(mac, 0x61, 0xf000); } else { PHY_FILT_SETBITS(mac, 0x2, 0xffc0, 0x4); } if (phy->phy_mode == IEEE80211_MODE_11B) { CSR_WRITE_2(sc, BWI_BBP_ATTEN, BWI_BBP_ATTEN_MAGIC2); PHY_WRITE(mac, 0x16, 0x410); PHY_WRITE(mac, 0x17, 0x820); PHY_WRITE(mac, 0x62, 0x7); bwi_rf_init_bcm2050(mac); bwi_rf_lo_update(mac); if (sc->sc_card_flags & BWI_CARD_F_SW_NRSSI) { bwi_rf_calc_nrssi_slope(mac); bwi_rf_set_nrssi_thr(mac); } bwi_mac_init_tpctl_11bg(mac); } else CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0); } #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) void bwi_phy_config_11g(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; const uint16_t *tbl; uint16_t wrd_ofs1, wrd_ofs2; int i, n; if (phy->phy_rev == 1) { PHY_WRITE(mac, 0x406, 0x4f19); PHY_FILT_SETBITS(mac, 0x429, 0xfc3f, 0x340); PHY_WRITE(mac, 0x42c, 0x5a); PHY_WRITE(mac, 0x427, 0x1a); /* Fill frequency table */ for (i = 0; i < N(bwi_phy_freq_11g_rev1); ++i) { bwi_tbl_write_2(mac, BWI_PHYTBL_FREQ + i, bwi_phy_freq_11g_rev1[i]); } /* Fill noise table */ for (i = 0; i < N(bwi_phy_noise_11g_rev1); ++i) { bwi_tbl_write_2(mac, BWI_PHYTBL_NOISE + i, bwi_phy_noise_11g_rev1[i]); } /* Fill rotor table */ for (i = 0; i < N(bwi_phy_rotor_11g_rev1); ++i) { /* NB: data length is 4 bytes */ bwi_tbl_write_4(mac, BWI_PHYTBL_ROTOR + i, bwi_phy_rotor_11g_rev1[i]); } } else { bwi_nrssi_write(mac, 0xba98, (int16_t)0x7654); /* XXX */ if (phy->phy_rev == 2) { PHY_WRITE(mac, 0x4c0, 0x1861); PHY_WRITE(mac, 0x4c1, 0x271); } else if (phy->phy_rev > 2) { PHY_WRITE(mac, 0x4c0, 0x98); PHY_WRITE(mac, 0x4c1, 0x70); PHY_WRITE(mac, 0x4c9, 0x80); } PHY_SETBITS(mac, 0x42b, 0x800); /* Fill RSSI table */ for (i = 0; i < 64; ++i) bwi_tbl_write_2(mac, BWI_PHYTBL_RSSI + i, i); /* Fill noise table */ for (i = 0; i < sizeof(bwi_phy_noise_11g); ++i) { bwi_tbl_write_2(mac, BWI_PHYTBL_NOISE + i, bwi_phy_noise_11g[i]); } } /* * Fill noise scale table */ if (phy->phy_rev <= 2) { tbl = bwi_phy_noise_scale_11g_rev2; n = N(bwi_phy_noise_scale_11g_rev2); } else if (phy->phy_rev >= 7 && (PHY_READ(mac, 0x449) & 0x200)) { tbl = bwi_phy_noise_scale_11g_rev7; n = N(bwi_phy_noise_scale_11g_rev7); } else { tbl = bwi_phy_noise_scale_11g; n = N(bwi_phy_noise_scale_11g); } for (i = 0; i < n; ++i) bwi_tbl_write_2(mac, BWI_PHYTBL_NOISE_SCALE + i, tbl[i]); /* * Fill sigma square table */ if (phy->phy_rev == 2) { tbl = bwi_phy_sigma_sq_11g_rev2; n = N(bwi_phy_sigma_sq_11g_rev2); } else if (phy->phy_rev > 2 && phy->phy_rev <= 8) { tbl = bwi_phy_sigma_sq_11g_rev7; n = N(bwi_phy_sigma_sq_11g_rev7); } else { tbl = NULL; n = 0; } for (i = 0; i < n; ++i) bwi_tbl_write_2(mac, BWI_PHYTBL_SIGMA_SQ + i, tbl[i]); if (phy->phy_rev == 1) { /* Fill delay table */ for (i = 0; i < N(bwi_phy_delay_11g_rev1); ++i) { bwi_tbl_write_4(mac, BWI_PHYTBL_DELAY + i, bwi_phy_delay_11g_rev1[i]); } /* Fill WRSSI (Wide-Band RSSI) table */ for (i = 4; i < 20; ++i) bwi_tbl_write_2(mac, BWI_PHYTBL_WRSSI_REV1 + i, 0x20); bwi_phy_config_agc(mac); wrd_ofs1 = 0x5001; wrd_ofs2 = 0x5002; } else { /* Fill WRSSI (Wide-Band RSSI) table */ for (i = 0; i < 0x20; ++i) bwi_tbl_write_2(mac, BWI_PHYTBL_WRSSI + i, 0x820); bwi_phy_config_agc(mac); PHY_READ(mac, 0x400); /* Dummy read */ PHY_WRITE(mac, 0x403, 0x1000); bwi_tbl_write_2(mac, 0x3c02, 0xf); bwi_tbl_write_2(mac, 0x3c03, 0x14); wrd_ofs1 = 0x401; wrd_ofs2 = 0x402; } if (!(BWI_IS_BRCM_BU4306(sc) && sc->sc_pci_revid == 0x17)) { bwi_tbl_write_2(mac, wrd_ofs1, 0x2); bwi_tbl_write_2(mac, wrd_ofs2, 0x1); } /* phy->phy_flags & BWI_PHY_F_LINKED ? */ if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) PHY_WRITE(mac, 0x46e, 0x3cf); } #undef N /* * Configure Automatic Gain Controller */ void bwi_phy_config_agc(struct bwi_mac *mac) { struct bwi_phy *phy = &mac->mac_phy; uint16_t ofs; ofs = phy->phy_rev == 1 ? 0x4c00 : 0; bwi_tbl_write_2(mac, ofs, 0xfe); bwi_tbl_write_2(mac, ofs + 1, 0xd); bwi_tbl_write_2(mac, ofs + 2, 0x13); bwi_tbl_write_2(mac, ofs + 3, 0x19); if (phy->phy_rev == 1) { bwi_tbl_write_2(mac, 0x1800, 0x2710); bwi_tbl_write_2(mac, 0x1801, 0x9b83); bwi_tbl_write_2(mac, 0x1802, 0x9b83); bwi_tbl_write_2(mac, 0x1803, 0xf8d); PHY_WRITE(mac, 0x455, 0x4); } PHY_FILT_SETBITS(mac, 0x4a5, 0xff, 0x5700); PHY_FILT_SETBITS(mac, 0x41a, 0xff80, 0xf); PHY_FILT_SETBITS(mac, 0x41a, 0xc07f, 0x2b80); PHY_FILT_SETBITS(mac, 0x48c, 0xf0ff, 0x300); RF_SETBITS(mac, 0x7a, 0x8); PHY_FILT_SETBITS(mac, 0x4a0, 0xfff0, 0x8); PHY_FILT_SETBITS(mac, 0x4a1, 0xf0ff, 0x600); PHY_FILT_SETBITS(mac, 0x4a2, 0xf0ff, 0x700); PHY_FILT_SETBITS(mac, 0x4a0, 0xf0ff, 0x100); if (phy->phy_rev == 1) PHY_FILT_SETBITS(mac, 0x4a2, 0xfff0, 0x7); PHY_FILT_SETBITS(mac, 0x488, 0xff00, 0x1c); PHY_FILT_SETBITS(mac, 0x488, 0xc0ff, 0x200); PHY_FILT_SETBITS(mac, 0x496, 0xff00, 0x1c); PHY_FILT_SETBITS(mac, 0x489, 0xff00, 0x20); PHY_FILT_SETBITS(mac, 0x489, 0xc0ff, 0x200); PHY_FILT_SETBITS(mac, 0x482, 0xff00, 0x2e); PHY_FILT_SETBITS(mac, 0x496, 0xff, 0x1a00); PHY_FILT_SETBITS(mac, 0x481, 0xff00, 0x28); PHY_FILT_SETBITS(mac, 0x481, 0xff, 0x2c00); if (phy->phy_rev == 1) { PHY_WRITE(mac, 0x430, 0x92b); PHY_FILT_SETBITS(mac, 0x41b, 0xffe1, 0x2); } else { PHY_CLRBITS(mac, 0x41b, 0x1e); PHY_WRITE(mac, 0x41f, 0x287a); PHY_FILT_SETBITS(mac, 0x420, 0xfff0, 0x4); if (phy->phy_rev >= 6) { PHY_WRITE(mac, 0x422, 0x287a); PHY_FILT_SETBITS(mac, 0x420, 0xfff, 0x3000); } } PHY_FILT_SETBITS(mac, 0x4a8, 0x8080, 0x7874); PHY_WRITE(mac, 0x48e, 0x1c00); if (phy->phy_rev == 1) { PHY_FILT_SETBITS(mac, 0x4ab, 0xf0ff, 0x600); PHY_WRITE(mac, 0x48b, 0x5e); PHY_FILT_SETBITS(mac, 0x48c, 0xff00, 0x1e); PHY_WRITE(mac, 0x48d, 0x2); } bwi_tbl_write_2(mac, ofs + 0x800, 0); bwi_tbl_write_2(mac, ofs + 0x801, 7); bwi_tbl_write_2(mac, ofs + 0x802, 16); bwi_tbl_write_2(mac, ofs + 0x803, 28); if (phy->phy_rev >= 6) { PHY_CLRBITS(mac, 0x426, 0x3); PHY_CLRBITS(mac, 0x426, 0x1000); } } void bwi_set_gains(struct bwi_mac *mac, const struct bwi_gains *gains) { struct bwi_phy *phy = &mac->mac_phy; uint16_t tbl_gain_ofs1, tbl_gain_ofs2, tbl_gain; int i; if (phy->phy_rev <= 1) { tbl_gain_ofs1 = 0x5000; tbl_gain_ofs2 = tbl_gain_ofs1 + 16; } else { tbl_gain_ofs1 = 0x400; tbl_gain_ofs2 = tbl_gain_ofs1 + 8; } for (i = 0; i < 4; ++i) { if (gains != NULL) { tbl_gain = gains->tbl_gain1; } else { /* Bit swap */ tbl_gain = (i & 0x1) << 1; tbl_gain |= (i & 0x2) >> 1; } bwi_tbl_write_2(mac, tbl_gain_ofs1 + i, tbl_gain); } for (i = 0; i < 16; ++i) { if (gains != NULL) tbl_gain = gains->tbl_gain2; else tbl_gain = i; bwi_tbl_write_2(mac, tbl_gain_ofs2 + i, tbl_gain); } if (gains == NULL || (gains != NULL && gains->phy_gain != -1)) { uint16_t phy_gain1, phy_gain2; if (gains != NULL) { phy_gain1 = ((uint16_t)gains->phy_gain << 14) | ((uint16_t)gains->phy_gain << 6); phy_gain2 = phy_gain1; } else { phy_gain1 = 0x4040; phy_gain2 = 0x4000; } PHY_FILT_SETBITS(mac, 0x4a0, 0xbfbf, phy_gain1); PHY_FILT_SETBITS(mac, 0x4a1, 0xbfbf, phy_gain1); PHY_FILT_SETBITS(mac, 0x4a2, 0xbfbf, phy_gain2); } bwi_mac_dummy_xmit(mac); } void bwi_phy_clear_state(struct bwi_phy *phy) { phy->phy_flags &= ~BWI_CLEAR_PHY_FLAGS; } /* RF */ int16_t bwi_nrssi_11g(struct bwi_mac *mac) { int16_t val; #define NRSSI_11G_MASK 0x3f00 val = (int16_t)__SHIFTOUT(PHY_READ(mac, 0x47f), NRSSI_11G_MASK); if (val >= 32) val -= 64; return (val); #undef NRSSI_11G_MASK } struct bwi_rf_lo * bwi_get_rf_lo(struct bwi_mac *mac, uint16_t rf_atten, uint16_t bbp_atten) { int n; n = rf_atten + (14 * (bbp_atten / 2)); KASSERT(n < BWI_RFLO_MAX); return (&mac->mac_rf.rf_lo[n]); } int bwi_rf_lo_isused(struct bwi_mac *mac, const struct bwi_rf_lo *lo) { struct bwi_rf *rf = &mac->mac_rf; int idx; idx = lo - rf->rf_lo; KASSERT(idx >= 0 && idx < BWI_RFLO_MAX); return (isset(rf->rf_lo_used, idx)); } void bwi_rf_write(struct bwi_mac *mac, uint16_t ctrl, uint16_t data) { struct bwi_softc *sc = mac->mac_sc; CSR_WRITE_2(sc, BWI_RF_CTRL, ctrl); CSR_WRITE_2(sc, BWI_RF_DATA_LO, data); } uint16_t bwi_rf_read(struct bwi_mac *mac, uint16_t ctrl) { struct bwi_rf *rf = &mac->mac_rf; struct bwi_softc *sc = mac->mac_sc; ctrl |= rf->rf_ctrl_rd; if (rf->rf_ctrl_adj) { /* XXX */ if (ctrl < 0x70) ctrl += 0x80; else if (ctrl < 0x80) ctrl += 0x70; } CSR_WRITE_2(sc, BWI_RF_CTRL, ctrl); return (CSR_READ_2(sc, BWI_RF_DATA_LO)); } int bwi_rf_attach(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; uint16_t type, manu; uint8_t rev; /* * Get RF manufacture/type/revision */ if (sc->sc_bbp_id == BWI_BBPID_BCM4317) { /* * Fake a BCM2050 RF */ manu = BWI_RF_MANUFACT_BCM; type = BWI_RF_T_BCM2050; if (sc->sc_bbp_rev == 0) rev = 3; else if (sc->sc_bbp_rev == 1) rev = 4; else rev = 5; } else { uint32_t val; CSR_WRITE_2(sc, BWI_RF_CTRL, BWI_RF_CTRL_RFINFO); val = CSR_READ_2(sc, BWI_RF_DATA_HI); val <<= 16; CSR_WRITE_2(sc, BWI_RF_CTRL, BWI_RF_CTRL_RFINFO); val |= CSR_READ_2(sc, BWI_RF_DATA_LO); manu = __SHIFTOUT(val, BWI_RFINFO_MANUFACT_MASK); type = __SHIFTOUT(val, BWI_RFINFO_TYPE_MASK); rev = __SHIFTOUT(val, BWI_RFINFO_REV_MASK); } DPRINTF(1, "%s: RF manu 0x%03x, type 0x%04x, rev %u\n", sc->sc_dev.dv_xname, manu, type, rev); /* * Verify whether the RF is supported */ rf->rf_ctrl_rd = 0; rf->rf_ctrl_adj = 0; switch (phy->phy_mode) { case IEEE80211_MODE_11A: if (manu != BWI_RF_MANUFACT_BCM || type != BWI_RF_T_BCM2060 || rev != 1) { printf("%s: only BCM2060 rev 1 RF is supported for " "11A PHY\n", sc->sc_dev.dv_xname); return (ENXIO); } rf->rf_ctrl_rd = BWI_RF_CTRL_RD_11A; rf->rf_on = bwi_rf_on_11a; rf->rf_off = bwi_rf_off_11a; rf->rf_calc_rssi = bwi_rf_calc_rssi_bcm2060; break; case IEEE80211_MODE_11B: if (type == BWI_RF_T_BCM2050) { rf->rf_ctrl_rd = BWI_RF_CTRL_RD_11BG; rf->rf_calc_rssi = bwi_rf_calc_rssi_bcm2050; } else if (type == BWI_RF_T_BCM2053) { rf->rf_ctrl_adj = 1; rf->rf_calc_rssi = bwi_rf_calc_rssi_bcm2053; } else { printf("%s: only BCM2050/BCM2053 RF is supported " "for supported for 11B PHY\n", sc->sc_dev.dv_xname); return (ENXIO); } rf->rf_on = bwi_rf_on_11bg; rf->rf_off = bwi_rf_off_11bg; rf->rf_calc_nrssi_slope = bwi_rf_calc_nrssi_slope_11b; rf->rf_set_nrssi_thr = bwi_rf_set_nrssi_thr_11b; if (phy->phy_rev == 6) rf->rf_lo_update = bwi_rf_lo_update_11g; else rf->rf_lo_update = bwi_rf_lo_update_11b; break; case IEEE80211_MODE_11G: if (type != BWI_RF_T_BCM2050) { printf("%s: only BCM2050 RF is supported for 11G " "PHY\n", sc->sc_dev.dv_xname); return (ENXIO); } rf->rf_ctrl_rd = BWI_RF_CTRL_RD_11BG; rf->rf_on = bwi_rf_on_11bg; if (mac->mac_rev >= 5) rf->rf_off = bwi_rf_off_11g_rev5; else rf->rf_off = bwi_rf_off_11bg; rf->rf_calc_nrssi_slope = bwi_rf_calc_nrssi_slope_11g; rf->rf_set_nrssi_thr = bwi_rf_set_nrssi_thr_11g; rf->rf_calc_rssi = bwi_rf_calc_rssi_bcm2050; rf->rf_lo_update = bwi_rf_lo_update_11g; break; default: printf("%s: unsupported PHY mode\n", sc->sc_dev.dv_xname); return (ENXIO); } rf->rf_type = type; rf->rf_rev = rev; rf->rf_manu = manu; rf->rf_curchan = IEEE80211_CHAN_ANY; rf->rf_ant_mode = BWI_ANT_MODE_AUTO; return (0); } void bwi_rf_set_chan(struct bwi_mac *mac, uint chan, int work_around) { struct bwi_softc *sc = mac->mac_sc; if (chan == IEEE80211_CHAN_ANY) return; MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_CHAN, chan); /* TODO: 11A */ if (work_around) bwi_rf_workaround(mac, chan); CSR_WRITE_2(sc, BWI_RF_CHAN, BWI_RF_2GHZ_CHAN(chan)); if (chan == 14) { if (sc->sc_locale == BWI_SPROM_LOCALE_JAPAN) HFLAGS_CLRBITS(mac, BWI_HFLAG_NOT_JAPAN); else HFLAGS_SETBITS(mac, BWI_HFLAG_NOT_JAPAN); CSR_SETBITS_2(sc, BWI_RF_CHAN_EX, (1 << 11)); /* XXX */ } else { CSR_CLRBITS_2(sc, BWI_RF_CHAN_EX, 0x840); /* XXX */ } DELAY(8000); /* DELAY(2000); */ mac->mac_rf.rf_curchan = chan; } void bwi_rf_get_gains(struct bwi_mac *mac) { #define SAVE_PHY_MAX 15 #define SAVE_RF_MAX 3 struct bwi_softc *sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; uint16_t save_phy[SAVE_PHY_MAX]; uint16_t save_rf[SAVE_RF_MAX]; uint16_t trsw; int i, j, loop1_max, loop1, loop2; static const uint16_t save_rf_regs[SAVE_RF_MAX] = { 0x52, 0x43, 0x7a }; static const uint16_t save_phy_regs[SAVE_PHY_MAX] = { 0x0429, 0x0001, 0x0811, 0x0812, 0x0814, 0x0815, 0x005a, 0x0059, 0x0058, 0x000a, 0x0003, 0x080f, 0x0810, 0x002b, 0x0015 }; sc = mac->mac_sc; /* * Save PHY/RF registers for later restoration */ for (i = 0; i < SAVE_PHY_MAX; ++i) save_phy[i] = PHY_READ(mac, save_phy_regs[i]); PHY_READ(mac, 0x2d); /* dummy read */ for (i = 0; i < SAVE_RF_MAX; ++i) save_rf[i] = RF_READ(mac, save_rf_regs[i]); PHY_CLRBITS(mac, 0x429, 0xc000); PHY_SETBITS(mac, 0x1, 0x8000); PHY_SETBITS(mac, 0x811, 0x2); PHY_CLRBITS(mac, 0x812, 0x2); PHY_SETBITS(mac, 0x811, 0x1); PHY_CLRBITS(mac, 0x812, 0x1); PHY_SETBITS(mac, 0x814, 0x1); PHY_CLRBITS(mac, 0x815, 0x1); PHY_SETBITS(mac, 0x814, 0x2); PHY_CLRBITS(mac, 0x815, 0x2); PHY_SETBITS(mac, 0x811, 0xc); PHY_SETBITS(mac, 0x812, 0xc); PHY_SETBITS(mac, 0x811, 0x30); PHY_FILT_SETBITS(mac, 0x812, 0xffcf, 0x10); PHY_WRITE(mac, 0x5a, 0x780); PHY_WRITE(mac, 0x59, 0xc810); PHY_WRITE(mac, 0x58, 0xd); PHY_SETBITS(mac, 0xa, 0x2000); PHY_SETBITS(mac, 0x814, 0x4); PHY_CLRBITS(mac, 0x815, 0x4); PHY_FILT_SETBITS(mac, 0x3, 0xff9f, 0x40); if (rf->rf_rev == 8) { loop1_max = 15; RF_WRITE(mac, 0x43, loop1_max); } else { loop1_max = 9; RF_WRITE(mac, 0x52, 0x0); RF_FILT_SETBITS(mac, 0x43, 0xfff0, loop1_max); } bwi_phy_set_bbp_atten(mac, 11); if (phy->phy_rev >= 3) PHY_WRITE(mac, 0x80f, 0xc020); else PHY_WRITE(mac, 0x80f, 0x8020); PHY_WRITE(mac, 0x810, 0); PHY_FILT_SETBITS(mac, 0x2b, 0xffc0, 0x1); PHY_FILT_SETBITS(mac, 0x2b, 0xc0ff, 0x800); PHY_SETBITS(mac, 0x811, 0x100); PHY_CLRBITS(mac, 0x812, 0x3000); if ((mac->mac_sc->sc_card_flags & BWI_CARD_F_EXT_LNA) && phy->phy_rev >= 7) { PHY_SETBITS(mac, 0x811, 0x800); PHY_SETBITS(mac, 0x812, 0x8000); } RF_CLRBITS(mac, 0x7a, 0xff08); /* * Find out 'loop1/loop2', which will be used to calculate * max loopback gain later */ j = 0; for (i = 0; i < loop1_max; ++i) { for (j = 0; j < 16; ++j) { RF_WRITE(mac, 0x43, i); if (bwi_rf_gain_max_reached(mac, j)) goto loop1_exit; } } loop1_exit: loop1 = i; loop2 = j; /* * Find out 'trsw', which will be used to calculate * TRSW(TX/RX switch) RX gain later */ if (loop2 >= 8) { PHY_SETBITS(mac, 0x812, 0x30); trsw = 0x1b; for (i = loop2 - 8; i < 16; ++i) { trsw -= 3; if (bwi_rf_gain_max_reached(mac, i)) break; } } else { trsw = 0x18; } /* * Restore saved PHY/RF registers */ /* First 4 saved PHY registers need special processing */ for (i = 4; i < SAVE_PHY_MAX; ++i) PHY_WRITE(mac, save_phy_regs[i], save_phy[i]); bwi_phy_set_bbp_atten(mac, mac->mac_tpctl.bbp_atten); for (i = 0; i < SAVE_RF_MAX; ++i) RF_WRITE(mac, save_rf_regs[i], save_rf[i]); PHY_WRITE(mac, save_phy_regs[2], save_phy[2] | 0x3); DELAY(10); PHY_WRITE(mac, save_phy_regs[2], save_phy[2]); PHY_WRITE(mac, save_phy_regs[3], save_phy[3]); PHY_WRITE(mac, save_phy_regs[0], save_phy[0]); PHY_WRITE(mac, save_phy_regs[1], save_phy[1]); /* * Calculate gains */ rf->rf_lo_gain = (loop2 * 6) - (loop1 * 4) - 11; rf->rf_rx_gain = trsw * 2; DPRINTF(1, "%s: lo gain: %u, rx gain: %u\n", sc->sc_dev.dv_xname, rf->rf_lo_gain, rf->rf_rx_gain); #undef SAVE_RF_MAX #undef SAVE_PHY_MAX } void bwi_rf_init(struct bwi_mac *mac) { struct bwi_rf *rf = &mac->mac_rf; if (rf->rf_type == BWI_RF_T_BCM2060) { /* TODO: 11A */ } else { if (rf->rf_flags & BWI_RF_F_INITED) RF_WRITE(mac, 0x78, rf->rf_calib); else bwi_rf_init_bcm2050(mac); } } void bwi_rf_off_11a(struct bwi_mac *mac) { RF_WRITE(mac, 0x4, 0xff); RF_WRITE(mac, 0x5, 0xfb); PHY_SETBITS(mac, 0x10, 0x8); PHY_SETBITS(mac, 0x11, 0x8); PHY_WRITE(mac, 0x15, 0xaa00); } void bwi_rf_off_11bg(struct bwi_mac *mac) { PHY_WRITE(mac, 0x15, 0xaa00); } void bwi_rf_off_11g_rev5(struct bwi_mac *mac) { PHY_SETBITS(mac, 0x811, 0x8c); PHY_CLRBITS(mac, 0x812, 0x8c); } void bwi_rf_workaround(struct bwi_mac *mac, uint chan) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; if (chan == IEEE80211_CHAN_ANY) { printf("%s: %s invalid channel!\n", sc->sc_dev.dv_xname, __func__); return; } if (rf->rf_type != BWI_RF_T_BCM2050 || rf->rf_rev >= 6) return; if (chan <= 10) CSR_WRITE_2(sc, BWI_RF_CHAN, BWI_RF_2GHZ_CHAN(chan + 4)); else CSR_WRITE_2(sc, BWI_RF_CHAN, BWI_RF_2GHZ_CHAN(1)); DELAY(1000); CSR_WRITE_2(sc, BWI_RF_CHAN, BWI_RF_2GHZ_CHAN(chan)); } struct bwi_rf_lo * bwi_rf_lo_find(struct bwi_mac *mac, const struct bwi_tpctl *tpctl) { uint16_t rf_atten, bbp_atten; int remap_rf_atten; remap_rf_atten = 1; if (tpctl == NULL) { bbp_atten = 2; rf_atten = 3; } else { if (tpctl->tp_ctrl1 == 3) remap_rf_atten = 0; bbp_atten = tpctl->bbp_atten; rf_atten = tpctl->rf_atten; if (bbp_atten > 6) bbp_atten = 6; } if (remap_rf_atten) { #define MAP_MAX 10 static const uint16_t map[MAP_MAX] = { 11, 10, 11, 12, 13, 12, 13, 12, 13, 12 }; #if 0 KASSERT(rf_atten < MAP_MAX); rf_atten = map[rf_atten]; #else if (rf_atten >= MAP_MAX) { rf_atten = 0; /* XXX */ } else { rf_atten = map[rf_atten]; } #endif #undef MAP_MAX } return (bwi_get_rf_lo(mac, rf_atten, bbp_atten)); } void bwi_rf_lo_adjust(struct bwi_mac *mac, const struct bwi_tpctl *tpctl) { const struct bwi_rf_lo *lo; lo = bwi_rf_lo_find(mac, tpctl); RF_LO_WRITE(mac, lo); } void bwi_rf_lo_write(struct bwi_mac *mac, const struct bwi_rf_lo *lo) { uint16_t val; val = (uint8_t)lo->ctrl_lo; val |= ((uint8_t)lo->ctrl_hi) << 8; PHY_WRITE(mac, BWI_PHYR_RF_LO, val); } int bwi_rf_gain_max_reached(struct bwi_mac *mac, int idx) { PHY_FILT_SETBITS(mac, 0x812, 0xf0ff, idx << 8); PHY_FILT_SETBITS(mac, 0x15, 0xfff, 0xa000); PHY_SETBITS(mac, 0x15, 0xf000); DELAY(20); return ((PHY_READ(mac, 0x2d) >= 0xdfc)); } /* XXX use bitmap array */ uint16_t bwi_bitswap4(uint16_t val) { uint16_t ret; ret = (val & 0x8) >> 3; ret |= (val & 0x4) >> 1; ret |= (val & 0x2) << 1; ret |= (val & 0x1) << 3; return (ret); } uint16_t bwi_phy812_value(struct bwi_mac *mac, uint16_t lpd) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; uint16_t lo_gain, ext_lna, loop; if ((phy->phy_flags & BWI_PHY_F_LINKED) == 0) return (0); lo_gain = rf->rf_lo_gain; if (rf->rf_rev == 8) lo_gain += 0x3e; else lo_gain += 0x26; if (lo_gain >= 0x46) { lo_gain -= 0x46; ext_lna = 0x3000; } else if (lo_gain >= 0x3a) { lo_gain -= 0x3a; ext_lna = 0x1000; } else if (lo_gain >= 0x2e) { lo_gain -= 0x2e; ext_lna = 0x2000; } else { lo_gain -= 0x10; ext_lna = 0; } for (loop = 0; loop < 16; ++loop) { lo_gain -= (6 * loop); if (lo_gain < 6) break; } if (phy->phy_rev >= 7 && (sc->sc_card_flags & BWI_CARD_F_EXT_LNA)) { if (ext_lna) ext_lna |= 0x8000; ext_lna |= (loop << 8); switch (lpd) { case 0x011: return (0x8f92); case 0x001: return ((0x8092 | ext_lna)); case 0x101: return ((0x2092 | ext_lna)); case 0x100: return ((0x2093 | ext_lna)); default: panic("unsupported lpd\n"); } } else { ext_lna |= (loop << 8); switch (lpd) { case 0x011: return (0xf92); case 0x001: case 0x101: return ((0x92 | ext_lna)); case 0x100: return ((0x93 | ext_lna)); default: panic("unsupported lpd\n"); } } panic("never reached\n"); return (0); } void bwi_rf_init_bcm2050(struct bwi_mac *mac) { #define SAVE_RF_MAX 3 #define SAVE_PHY_COMM_MAX 4 #define SAVE_PHY_11G_MAX 6 uint16_t save_rf[SAVE_RF_MAX]; uint16_t save_phy_comm[SAVE_PHY_COMM_MAX]; uint16_t save_phy_11g[SAVE_PHY_11G_MAX]; uint16_t phyr_35, phyr_30 = 0, rfr_78, phyr_80f = 0, phyr_810 = 0; uint16_t bphy_ctrl = 0, bbp_atten, rf_chan_ex; uint16_t phy812_val; uint16_t calib; uint32_t test_lim, test; struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; int i; static const uint16_t save_rf_regs[SAVE_RF_MAX] = { 0x0043, 0x0051, 0x0052 }; static const uint16_t save_phy_regs_comm[SAVE_PHY_COMM_MAX] = { 0x0015, 0x005a, 0x0059, 0x0058 }; static const uint16_t save_phy_regs_11g[SAVE_PHY_11G_MAX] = { 0x0811, 0x0812, 0x0814, 0x0815, 0x0429, 0x0802 }; /* * Save registers for later restoring */ for (i = 0; i < SAVE_RF_MAX; ++i) save_rf[i] = RF_READ(mac, save_rf_regs[i]); for (i = 0; i < SAVE_PHY_COMM_MAX; ++i) save_phy_comm[i] = PHY_READ(mac, save_phy_regs_comm[i]); if (phy->phy_mode == IEEE80211_MODE_11B) { phyr_30 = PHY_READ(mac, 0x30); bphy_ctrl = CSR_READ_2(sc, BWI_BPHY_CTRL); PHY_WRITE(mac, 0x30, 0xff); CSR_WRITE_2(sc, BWI_BPHY_CTRL, 0x3f3f); } else if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { for (i = 0; i < SAVE_PHY_11G_MAX; ++i) { save_phy_11g[i] = PHY_READ(mac, save_phy_regs_11g[i]); } PHY_SETBITS(mac, 0x814, 0x3); PHY_CLRBITS(mac, 0x815, 0x3); PHY_CLRBITS(mac, 0x429, 0x8000); PHY_CLRBITS(mac, 0x802, 0x3); phyr_80f = PHY_READ(mac, 0x80f); phyr_810 = PHY_READ(mac, 0x810); if (phy->phy_rev >= 3) PHY_WRITE(mac, 0x80f, 0xc020); else PHY_WRITE(mac, 0x80f, 0x8020); PHY_WRITE(mac, 0x810, 0); phy812_val = bwi_phy812_value(mac, 0x011); PHY_WRITE(mac, 0x812, phy812_val); if (phy->phy_rev < 7 || (sc->sc_card_flags & BWI_CARD_F_EXT_LNA) == 0) PHY_WRITE(mac, 0x811, 0x1b3); else PHY_WRITE(mac, 0x811, 0x9b3); } CSR_SETBITS_2(sc, BWI_RF_ANTDIV, 0x8000); phyr_35 = PHY_READ(mac, 0x35); PHY_CLRBITS(mac, 0x35, 0x80); bbp_atten = CSR_READ_2(sc, BWI_BBP_ATTEN); rf_chan_ex = CSR_READ_2(sc, BWI_RF_CHAN_EX); if (phy->phy_version == 0) { CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0x122); } else { if (phy->phy_version >= 2) PHY_FILT_SETBITS(mac, 0x3, 0xffbf, 0x40); CSR_SETBITS_2(sc, BWI_RF_CHAN_EX, 0x2000); } calib = bwi_rf_calibval(mac); if (phy->phy_mode == IEEE80211_MODE_11B) RF_WRITE(mac, 0x78, 0x26); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x011); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xbfaf); PHY_WRITE(mac, 0x2b, 0x1403); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x001); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xbfa0); RF_SETBITS(mac, 0x51, 0x4); if (rf->rf_rev == 8) RF_WRITE(mac, 0x43, 0x1f); else { RF_WRITE(mac, 0x52, 0); RF_FILT_SETBITS(mac, 0x43, 0xfff0, 0x9); } test_lim = 0; PHY_WRITE(mac, 0x58, 0); for (i = 0; i < 16; ++i) { PHY_WRITE(mac, 0x5a, 0x480); PHY_WRITE(mac, 0x59, 0xc810); PHY_WRITE(mac, 0x58, 0xd); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x101); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xafb0); DELAY(10); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x101); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xefb0); DELAY(10); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x100); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xfff0); DELAY(20); test_lim += PHY_READ(mac, 0x2d); PHY_WRITE(mac, 0x58, 0); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x101); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xafb0); } ++test_lim; test_lim >>= 9; DELAY(10); test = 0; PHY_WRITE(mac, 0x58, 0); for (i = 0; i < 16; ++i) { int j; rfr_78 = (bwi_bitswap4(i) << 1) | 0x20; RF_WRITE(mac, 0x78, rfr_78); DELAY(10); /* NB: This block is slight different than the above one */ for (j = 0; j < 16; ++j) { PHY_WRITE(mac, 0x5a, 0xd80); PHY_WRITE(mac, 0x59, 0xc810); PHY_WRITE(mac, 0x58, 0xd); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x101); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xafb0); DELAY(10); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x101); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xefb0); DELAY(10); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x100); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xfff0); DELAY(10); test += PHY_READ(mac, 0x2d); PHY_WRITE(mac, 0x58, 0); if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { phy812_val = bwi_phy812_value(mac, 0x101); PHY_WRITE(mac, 0x812, phy812_val); } PHY_WRITE(mac, 0x15, 0xafb0); } ++test; test >>= 8; if (test > test_lim) break; } if (i > 15) rf->rf_calib = rfr_78; else rf->rf_calib = calib; if (rf->rf_calib != 0xffff) { DPRINTF(1, "%s: RF calibration value: 0x%04x\n", sc->sc_dev.dv_xname, rf->rf_calib); rf->rf_flags |= BWI_RF_F_INITED; } /* * Restore trashes registers */ PHY_WRITE(mac, save_phy_regs_comm[0], save_phy_comm[0]); for (i = 0; i < SAVE_RF_MAX; ++i) { int pos = (i + 1) % SAVE_RF_MAX; RF_WRITE(mac, save_rf_regs[pos], save_rf[pos]); } for (i = 1; i < SAVE_PHY_COMM_MAX; ++i) PHY_WRITE(mac, save_phy_regs_comm[i], save_phy_comm[i]); CSR_WRITE_2(sc, BWI_BBP_ATTEN, bbp_atten); if (phy->phy_version != 0) CSR_WRITE_2(sc, BWI_RF_CHAN_EX, rf_chan_ex); PHY_WRITE(mac, 0x35, phyr_35); bwi_rf_workaround(mac, rf->rf_curchan); if (phy->phy_mode == IEEE80211_MODE_11B) { PHY_WRITE(mac, 0x30, phyr_30); CSR_WRITE_2(sc, BWI_BPHY_CTRL, bphy_ctrl); } else if ((phy->phy_flags & BWI_PHY_F_LINKED) || phy->phy_rev >= 2) { /* XXX Spec only says when PHY is linked (gmode) */ CSR_CLRBITS_2(sc, BWI_RF_ANTDIV, 0x8000); for (i = 0; i < SAVE_PHY_11G_MAX; ++i) { PHY_WRITE(mac, save_phy_regs_11g[i], save_phy_11g[i]); } PHY_WRITE(mac, 0x80f, phyr_80f); PHY_WRITE(mac, 0x810, phyr_810); } #undef SAVE_PHY_11G_MAX #undef SAVE_PHY_COMM_MAX #undef SAVE_RF_MAX } uint16_t bwi_rf_calibval(struct bwi_mac *mac) { uint16_t val, calib; int idx; /* http://bcm-specs.sipsolutions.net/RCCTable */ static const uint16_t rf_calibvals[] = { 0x2, 0x3, 0x1, 0xf, 0x6, 0x7, 0x5, 0xf, 0xa, 0xb, 0x9, 0xf, 0xe, 0xf, 0xd, 0xf }; val = RF_READ(mac, BWI_RFR_BBP_ATTEN); idx = __SHIFTOUT(val, BWI_RFR_BBP_ATTEN_CALIB_IDX); KASSERT(idx < (int)(sizeof(rf_calibvals) / sizeof(rf_calibvals[0]))); calib = rf_calibvals[idx] << 1; if (val & BWI_RFR_BBP_ATTEN_CALIB_BIT) calib |= 0x1; calib |= 0x20; return (calib); } int32_t _bwi_adjust_devide(int32_t num, int32_t den) { if (num < 0) return ((num / den)); else return ((num + den / 2) / den); } /* * http://bcm-specs.sipsolutions.net/TSSI_to_DBM_Table * "calculating table entries" */ int bwi_rf_calc_txpower(int8_t *txpwr, uint8_t idx, const int16_t pa_params[]) { int32_t m1, m2, f, dbm; int i; m1 = _bwi_adjust_devide(16 * pa_params[0] + idx * pa_params[1], 32); m2 = imax(_bwi_adjust_devide(32768 + idx * pa_params[2], 256), 1); #define ITER_MAX 16 f = 256; for (i = 0; i < ITER_MAX; ++i) { int32_t q, d; q = _bwi_adjust_devide( f * 4096 - _bwi_adjust_devide(m2 * f, 16) * f, 2048); d = abs(q - f); f = q; if (d < 2) break; } if (i == ITER_MAX) return (EINVAL); #undef ITER_MAX dbm = _bwi_adjust_devide(m1 * f, 8192); if (dbm < -127) dbm = -127; else if (dbm > 128) dbm = 128; *txpwr = dbm; return (0); } int bwi_rf_map_txpower(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_phy *phy = &mac->mac_phy; uint16_t sprom_ofs, val, mask; int16_t pa_params[3]; int error = 0, i, ant_gain, reg_txpower_max; /* * Find out max TX power */ val = bwi_read_sprom(sc, BWI_SPROM_MAX_TXPWR); if (phy->phy_mode == IEEE80211_MODE_11A) { rf->rf_txpower_max = __SHIFTOUT(val, BWI_SPROM_MAX_TXPWR_MASK_11A); } else { rf->rf_txpower_max = __SHIFTOUT(val, BWI_SPROM_MAX_TXPWR_MASK_11BG); if ((sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) && phy->phy_mode == IEEE80211_MODE_11G) rf->rf_txpower_max -= 3; } if (rf->rf_txpower_max <= 0) { printf("%s: invalid max txpower in sprom\n", sc->sc_dev.dv_xname); rf->rf_txpower_max = 74; } DPRINTF(1, "%s: max txpower from sprom: %d dBm\n", sc->sc_dev.dv_xname, rf->rf_txpower_max); /* * Find out region/domain max TX power, which is adjusted * by antenna gain and 1.5 dBm fluctuation as mentioned * in v3 spec. */ val = bwi_read_sprom(sc, BWI_SPROM_ANT_GAIN); if (phy->phy_mode == IEEE80211_MODE_11A) ant_gain = __SHIFTOUT(val, BWI_SPROM_ANT_GAIN_MASK_11A); else ant_gain = __SHIFTOUT(val, BWI_SPROM_ANT_GAIN_MASK_11BG); if (ant_gain == 0xff) { /* XXX why this always invalid? */ DPRINTF(1, "%s: invalid antenna gain in sprom\n", sc->sc_dev.dv_xname); ant_gain = 2; } ant_gain *= 4; DPRINTF(1, "%s: ant gain %d dBm\n", sc->sc_dev.dv_xname, ant_gain); reg_txpower_max = 90 - ant_gain - 6; /* XXX magic number */ DPRINTF(1, "%s: region/domain max txpower %d dBm\n", sc->sc_dev.dv_xname, reg_txpower_max); /* * Force max TX power within region/domain TX power limit */ if (rf->rf_txpower_max > reg_txpower_max) rf->rf_txpower_max = reg_txpower_max; DPRINTF(1, "%s: max txpower %d dBm\n", sc->sc_dev.dv_xname, rf->rf_txpower_max); /* * Create TSSI to TX power mapping */ if (sc->sc_bbp_id == BWI_BBPID_BCM4301 && rf->rf_type != BWI_RF_T_BCM2050) { rf->rf_idle_tssi0 = BWI_DEFAULT_IDLE_TSSI; bcopy(bwi_txpower_map_11b, rf->rf_txpower_map0, sizeof(rf->rf_txpower_map0)); goto back; } #define IS_VALID_PA_PARAM(p) ((p) != 0 && (p) != -1) #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) /* * Extract PA parameters */ if (phy->phy_mode == IEEE80211_MODE_11A) sprom_ofs = BWI_SPROM_PA_PARAM_11A; else sprom_ofs = BWI_SPROM_PA_PARAM_11BG; for (i = 0; i < N(pa_params); ++i) pa_params[i] = (int16_t)bwi_read_sprom(sc, sprom_ofs + (i * 2)); for (i = 0; i < N(pa_params); ++i) { /* * If one of the PA parameters from SPROM is not valid, * fall back to the default values, if there are any. */ if (!IS_VALID_PA_PARAM(pa_params[i])) { const int8_t *txpower_map; if (phy->phy_mode == IEEE80211_MODE_11A) { printf("%s: no tssi2dbm table for 11a PHY\n", sc->sc_dev.dv_xname); return (ENXIO); } if (phy->phy_mode == IEEE80211_MODE_11G) { DPRINTF(1, "%s: use default 11g TSSI map\n", sc->sc_dev.dv_xname); txpower_map = bwi_txpower_map_11g; } else { txpower_map = bwi_txpower_map_11b; } rf->rf_idle_tssi0 = BWI_DEFAULT_IDLE_TSSI; bcopy(txpower_map, rf->rf_txpower_map0, sizeof(rf->rf_txpower_map0)); goto back; } } #undef N /* * All of the PA parameters from SPROM are valid. */ /* * Extract idle TSSI from SPROM. */ val = bwi_read_sprom(sc, BWI_SPROM_IDLE_TSSI); DPRINTF(1, "%s: sprom idle tssi: 0x%04x\n", sc->sc_dev.dv_xname, val); if (phy->phy_mode == IEEE80211_MODE_11A) mask = BWI_SPROM_IDLE_TSSI_MASK_11A; else mask = BWI_SPROM_IDLE_TSSI_MASK_11BG; rf->rf_idle_tssi0 = (int)__SHIFTOUT(val, mask); if (!IS_VALID_PA_PARAM(rf->rf_idle_tssi0)) rf->rf_idle_tssi0 = 62; #undef IS_VALID_PA_PARAM /* * Calculate TX power map, which is indexed by TSSI */ DPRINTF(1, "%s: TSSI-TX power map:\n", sc->sc_dev.dv_xname); for (i = 0; i < BWI_TSSI_MAX; ++i) { error = bwi_rf_calc_txpower(&rf->rf_txpower_map0[i], i, pa_params); if (error) { printf("%s: bwi_rf_calc_txpower failed\n", sc->sc_dev.dv_xname); break; } if (i != 0 && i % 8 == 0) DPRINTF(1, "\n"); DPRINTF(1, "%d ", rf->rf_txpower_map0[i]); } DPRINTF(1, "\n"); back: DPRINTF(1, "%s: idle tssi0: %d\n", sc->sc_dev.dv_xname, rf->rf_idle_tssi0); return (error); } void bwi_rf_lo_update_11g(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct ifnet *ifp = &sc->sc_ic.ic_if; struct bwi_rf *rf = &mac->mac_rf; struct bwi_phy *phy = &mac->mac_phy; struct bwi_tpctl *tpctl = &mac->mac_tpctl; struct rf_saveregs regs; uint16_t ant_div, chan_ex; uint8_t devi_ctrl; uint orig_chan; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); /* * Save RF/PHY registers for later restoration */ orig_chan = rf->rf_curchan; bzero(®s, sizeof(regs)); if (phy->phy_flags & BWI_PHY_F_LINKED) { SAVE_PHY_REG(mac, ®s, 429); SAVE_PHY_REG(mac, ®s, 802); PHY_WRITE(mac, 0x429, regs.phy_429 & 0x7fff); PHY_WRITE(mac, 0x802, regs.phy_802 & 0xfffc); } ant_div = CSR_READ_2(sc, BWI_RF_ANTDIV); CSR_WRITE_2(sc, BWI_RF_ANTDIV, ant_div | 0x8000); chan_ex = CSR_READ_2(sc, BWI_RF_CHAN_EX); SAVE_PHY_REG(mac, ®s, 15); SAVE_PHY_REG(mac, ®s, 2a); SAVE_PHY_REG(mac, ®s, 35); SAVE_PHY_REG(mac, ®s, 60); SAVE_RF_REG(mac, ®s, 43); SAVE_RF_REG(mac, ®s, 7a); SAVE_RF_REG(mac, ®s, 52); if (phy->phy_flags & BWI_PHY_F_LINKED) { SAVE_PHY_REG(mac, ®s, 811); SAVE_PHY_REG(mac, ®s, 812); SAVE_PHY_REG(mac, ®s, 814); SAVE_PHY_REG(mac, ®s, 815); } /* Force to channel 6 */ bwi_rf_set_chan(mac, 6, 0); if (phy->phy_flags & BWI_PHY_F_LINKED) { PHY_WRITE(mac, 0x429, regs.phy_429 & 0x7fff); PHY_WRITE(mac, 0x802, regs.phy_802 & 0xfffc); bwi_mac_dummy_xmit(mac); } RF_WRITE(mac, 0x43, 0x6); bwi_phy_set_bbp_atten(mac, 2); CSR_WRITE_2(sc, BWI_RF_CHAN_EX, 0); PHY_WRITE(mac, 0x2e, 0x7f); PHY_WRITE(mac, 0x80f, 0x78); PHY_WRITE(mac, 0x35, regs.phy_35 & 0xff7f); RF_WRITE(mac, 0x7a, regs.rf_7a & 0xfff0); PHY_WRITE(mac, 0x2b, 0x203); PHY_WRITE(mac, 0x2a, 0x8a3); if (phy->phy_flags & BWI_PHY_F_LINKED) { PHY_WRITE(mac, 0x814, regs.phy_814 | 0x3); PHY_WRITE(mac, 0x815, regs.phy_815 & 0xfffc); PHY_WRITE(mac, 0x811, 0x1b3); PHY_WRITE(mac, 0x812, 0xb2); } if ((ifp->if_flags & IFF_RUNNING) == 0) tpctl->tp_ctrl2 = bwi_rf_get_tp_ctrl2(mac); PHY_WRITE(mac, 0x80f, 0x8078); /* * Measure all RF LO */ devi_ctrl = _bwi_rf_lo_update_11g(mac, regs.rf_7a); /* * Restore saved RF/PHY registers */ if (phy->phy_flags & BWI_PHY_F_LINKED) { PHY_WRITE(mac, 0x15, 0xe300); PHY_WRITE(mac, 0x812, (devi_ctrl << 8) | 0xa0); DELAY(5); PHY_WRITE(mac, 0x812, (devi_ctrl << 8) | 0xa2); DELAY(2); PHY_WRITE(mac, 0x812, (devi_ctrl << 8) | 0xa3); } else PHY_WRITE(mac, 0x15, devi_ctrl | 0xefa0); if ((ifp->if_flags & IFF_RUNNING) == 0) tpctl = NULL; bwi_rf_lo_adjust(mac, tpctl); PHY_WRITE(mac, 0x2e, 0x807f); if (phy->phy_flags & BWI_PHY_F_LINKED) PHY_WRITE(mac, 0x2f, 0x202); else PHY_WRITE(mac, 0x2f, 0x101); CSR_WRITE_2(sc, BWI_RF_CHAN_EX, chan_ex); RESTORE_PHY_REG(mac, ®s, 15); RESTORE_PHY_REG(mac, ®s, 2a); RESTORE_PHY_REG(mac, ®s, 35); RESTORE_PHY_REG(mac, ®s, 60); RESTORE_RF_REG(mac, ®s, 43); RESTORE_RF_REG(mac, ®s, 7a); regs.rf_52 &= 0xf0; regs.rf_52 |= (RF_READ(mac, 0x52) & 0xf); RF_WRITE(mac, 0x52, regs.rf_52); CSR_WRITE_2(sc, BWI_RF_ANTDIV, ant_div); if (phy->phy_flags & BWI_PHY_F_LINKED) { RESTORE_PHY_REG(mac, ®s, 811); RESTORE_PHY_REG(mac, ®s, 812); RESTORE_PHY_REG(mac, ®s, 814); RESTORE_PHY_REG(mac, ®s, 815); RESTORE_PHY_REG(mac, ®s, 429); RESTORE_PHY_REG(mac, ®s, 802); } bwi_rf_set_chan(mac, orig_chan, 1); } uint32_t bwi_rf_lo_devi_measure(struct bwi_mac *mac, uint16_t ctrl) { struct bwi_phy *phy = &mac->mac_phy; uint32_t devi = 0; int i; if (phy->phy_flags & BWI_PHY_F_LINKED) ctrl <<= 8; for (i = 0; i < 8; ++i) { if (phy->phy_flags & BWI_PHY_F_LINKED) { PHY_WRITE(mac, 0x15, 0xe300); PHY_WRITE(mac, 0x812, ctrl | 0xb0); DELAY(5); PHY_WRITE(mac, 0x812, ctrl | 0xb2); DELAY(2); PHY_WRITE(mac, 0x812, ctrl | 0xb3); DELAY(4); PHY_WRITE(mac, 0x15, 0xf300); } else { PHY_WRITE(mac, 0x15, ctrl | 0xefa0); DELAY(2); PHY_WRITE(mac, 0x15, ctrl | 0xefe0); DELAY(4); PHY_WRITE(mac, 0x15, ctrl | 0xffe0); } DELAY(8); devi += PHY_READ(mac, 0x2d); } return (devi); } uint16_t bwi_rf_get_tp_ctrl2(struct bwi_mac *mac) { uint32_t devi_min; uint16_t tp_ctrl2 = 0; int i; RF_WRITE(mac, 0x52, 0); DELAY(10); devi_min = bwi_rf_lo_devi_measure(mac, 0); for (i = 0; i < 16; ++i) { uint32_t devi; RF_WRITE(mac, 0x52, i); DELAY(10); devi = bwi_rf_lo_devi_measure(mac, 0); if (devi < devi_min) { devi_min = devi; tp_ctrl2 = i; } } return (tp_ctrl2); } uint8_t _bwi_rf_lo_update_11g(struct bwi_mac *mac, uint16_t orig_rf7a) { #define RF_ATTEN_LISTSZ 14 #define BBP_ATTEN_MAX 4 /* half */ struct ifnet *ifp = &mac->mac_sc->sc_ic.ic_if; struct bwi_rf_lo lo_save, *lo; uint8_t devi_ctrl = 0; int idx, adj_rf7a = 0; static const int rf_atten_list[RF_ATTEN_LISTSZ] = { 3, 1, 5, 7, 9, 2, 0, 4, 6, 8, 1, 2, 3, 4 }; static const int rf_atten_init_list[RF_ATTEN_LISTSZ] = { 0, 3, 1, 5, 7, 3, 2, 0, 4, 6, -1, -1, -1, -1 }; static const int rf_lo_measure_order[RF_ATTEN_LISTSZ] = { 3, 1, 5, 7, 9, 2, 0, 4, 6, 8, 10, 11, 12, 13 }; bzero(&lo_save, sizeof(lo_save)); for (idx = 0; idx < RF_ATTEN_LISTSZ; ++idx) { int init_rf_atten = rf_atten_init_list[idx]; int rf_atten = rf_atten_list[idx]; int bbp_atten; for (bbp_atten = 0; bbp_atten < BBP_ATTEN_MAX; ++bbp_atten) { uint16_t tp_ctrl2, rf7a; if ((ifp->if_flags & IFF_RUNNING) == 0) { if (idx == 0) { bzero(&lo_save, sizeof(lo_save)); } else if (init_rf_atten < 0) { lo = bwi_get_rf_lo(mac, rf_atten, 2 * bbp_atten); bcopy(lo, &lo_save, sizeof(lo_save)); } else { lo = bwi_get_rf_lo(mac, init_rf_atten, 0); bcopy(lo, &lo_save, sizeof(lo_save)); } devi_ctrl = 0; adj_rf7a = 0; /* * XXX * Linux driver overflows 'val' */ if (init_rf_atten >= 0) { int val; val = rf_atten * 2 + bbp_atten; if (val > 14) { adj_rf7a = 1; if (val > 17) devi_ctrl = 1; if (val > 19) devi_ctrl = 2; } } } else { lo = bwi_get_rf_lo(mac, rf_atten, 2 * bbp_atten); if (!bwi_rf_lo_isused(mac, lo)) continue; bcopy(lo, &lo_save, sizeof(lo_save)); devi_ctrl = 3; adj_rf7a = 0; } RF_WRITE(mac, BWI_RFR_ATTEN, rf_atten); tp_ctrl2 = mac->mac_tpctl.tp_ctrl2; if (init_rf_atten < 0) tp_ctrl2 |= (3 << 4); RF_WRITE(mac, BWI_RFR_TXPWR, tp_ctrl2); DELAY(10); bwi_phy_set_bbp_atten(mac, bbp_atten * 2); rf7a = orig_rf7a & 0xfff0; if (adj_rf7a) rf7a |= 0x8; RF_WRITE(mac, 0x7a, rf7a); lo = bwi_get_rf_lo(mac, rf_lo_measure_order[idx], bbp_atten * 2); bwi_rf_lo_measure_11g(mac, &lo_save, lo, devi_ctrl); } } return (devi_ctrl); #undef RF_ATTEN_LISTSZ #undef BBP_ATTEN_MAX } void bwi_rf_lo_measure_11g(struct bwi_mac *mac, const struct bwi_rf_lo *src_lo, struct bwi_rf_lo *dst_lo, uint8_t devi_ctrl) { #define LO_ADJUST_MIN 1 #define LO_ADJUST_MAX 8 #define LO_ADJUST(hi, lo) { .ctrl_hi = hi, .ctrl_lo = lo } static const struct bwi_rf_lo rf_lo_adjust[LO_ADJUST_MAX] = { LO_ADJUST(1, 1), LO_ADJUST(1, 0), LO_ADJUST(1, -1), LO_ADJUST(0, -1), LO_ADJUST(-1, -1), LO_ADJUST(-1, 0), LO_ADJUST(-1, 1), LO_ADJUST(0, 1) }; #undef LO_ADJUST struct bwi_rf_lo lo_min; uint32_t devi_min; int found, loop_count, adjust_state; bcopy(src_lo, &lo_min, sizeof(lo_min)); RF_LO_WRITE(mac, &lo_min); devi_min = bwi_rf_lo_devi_measure(mac, devi_ctrl); loop_count = 12; /* XXX */ adjust_state = 0; do { struct bwi_rf_lo lo_base; int i, fin; found = 0; if (adjust_state == 0) { i = LO_ADJUST_MIN; fin = LO_ADJUST_MAX; } else if (adjust_state % 2 == 0) { i = adjust_state - 1; fin = adjust_state + 1; } else { i = adjust_state - 2; fin = adjust_state + 2; } if (i < LO_ADJUST_MIN) i += LO_ADJUST_MAX; KASSERT(i <= LO_ADJUST_MAX && i >= LO_ADJUST_MIN); if (fin > LO_ADJUST_MAX) fin -= LO_ADJUST_MAX; KASSERT(fin <= LO_ADJUST_MAX && fin >= LO_ADJUST_MIN); bcopy(&lo_min, &lo_base, sizeof(lo_base)); for (;;) { struct bwi_rf_lo lo; lo.ctrl_hi = lo_base.ctrl_hi + rf_lo_adjust[i - 1].ctrl_hi; lo.ctrl_lo = lo_base.ctrl_lo + rf_lo_adjust[i - 1].ctrl_lo; if (abs(lo.ctrl_lo) < 9 && abs(lo.ctrl_hi) < 9) { uint32_t devi; RF_LO_WRITE(mac, &lo); devi = bwi_rf_lo_devi_measure(mac, devi_ctrl); if (devi < devi_min) { devi_min = devi; adjust_state = i; found = 1; bcopy(&lo, &lo_min, sizeof(lo_min)); } } if (i == fin) break; if (i == LO_ADJUST_MAX) i = LO_ADJUST_MIN; else ++i; } } while (loop_count-- && found); bcopy(&lo_min, dst_lo, sizeof(*dst_lo)); #undef LO_ADJUST_MIN #undef LO_ADJUST_MAX } void bwi_rf_calc_nrssi_slope_11b(struct bwi_mac *mac) { #define SAVE_RF_MAX 3 #define SAVE_PHY_MAX 8 struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_phy *phy = &mac->mac_phy; uint16_t save_rf[SAVE_RF_MAX]; uint16_t save_phy[SAVE_PHY_MAX]; uint16_t ant_div, bbp_atten, chan_ex; int16_t nrssi[2]; int i; static const uint16_t save_rf_regs[SAVE_RF_MAX] = { 0x7a, 0x52, 0x43 }; static const uint16_t save_phy_regs[SAVE_PHY_MAX] = { 0x30, 0x26, 0x15, 0x2a, 0x20, 0x5a, 0x59, 0x58 }; /* * Save RF/PHY registers for later restoration */ for (i = 0; i < SAVE_RF_MAX; ++i) save_rf[i] = RF_READ(mac, save_rf_regs[i]); for (i = 0; i < SAVE_PHY_MAX; ++i) save_phy[i] = PHY_READ(mac, save_phy_regs[i]); ant_div = CSR_READ_2(sc, BWI_RF_ANTDIV); bbp_atten = CSR_READ_2(sc, BWI_BBP_ATTEN); chan_ex = CSR_READ_2(sc, BWI_RF_CHAN_EX); /* * Calculate nrssi0 */ if (phy->phy_rev >= 5) RF_CLRBITS(mac, 0x7a, 0xff80); else RF_CLRBITS(mac, 0x7a, 0xfff0); PHY_WRITE(mac, 0x30, 0xff); CSR_WRITE_2(sc, BWI_BPHY_CTRL, 0x7f7f); PHY_WRITE(mac, 0x26, 0); PHY_SETBITS(mac, 0x15, 0x20); PHY_WRITE(mac, 0x2a, 0x8a3); RF_SETBITS(mac, 0x7a, 0x80); nrssi[0] = (int16_t)PHY_READ(mac, 0x27); /* * Calculate nrssi1 */ RF_CLRBITS(mac, 0x7a, 0xff80); if (phy->phy_version >= 2) CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0x40); else if (phy->phy_version == 0) CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0x122); else CSR_CLRBITS_2(sc, BWI_RF_CHAN_EX, 0xdfff); PHY_WRITE(mac, 0x20, 0x3f3f); PHY_WRITE(mac, 0x15, 0xf330); RF_WRITE(mac, 0x5a, 0x60); RF_CLRBITS(mac, 0x43, 0xff0f); PHY_WRITE(mac, 0x5a, 0x480); PHY_WRITE(mac, 0x59, 0x810); PHY_WRITE(mac, 0x58, 0xd); DELAY(20); nrssi[1] = (int16_t)PHY_READ(mac, 0x27); /* * Restore saved RF/PHY registers */ PHY_WRITE(mac, save_phy_regs[0], save_phy[0]); RF_WRITE(mac, save_rf_regs[0], save_rf[0]); CSR_WRITE_2(sc, BWI_RF_ANTDIV, ant_div); for (i = 1; i < 4; ++i) PHY_WRITE(mac, save_phy_regs[i], save_phy[i]); bwi_rf_workaround(mac, rf->rf_curchan); if (phy->phy_version != 0) CSR_WRITE_2(sc, BWI_RF_CHAN_EX, chan_ex); for (; i < SAVE_PHY_MAX; ++i) PHY_WRITE(mac, save_phy_regs[i], save_phy[i]); for (i = 1; i < SAVE_RF_MAX; ++i) RF_WRITE(mac, save_rf_regs[i], save_rf[i]); /* * Install calculated narrow RSSI values */ if (nrssi[0] == nrssi[1]) rf->rf_nrssi_slope = 0x10000; else rf->rf_nrssi_slope = 0x400000 / (nrssi[0] - nrssi[1]); if (nrssi[0] <= -4) { rf->rf_nrssi[0] = nrssi[0]; rf->rf_nrssi[1] = nrssi[1]; } #undef SAVE_RF_MAX #undef SAVE_PHY_MAX } void bwi_rf_set_nrssi_ofs_11g(struct bwi_mac *mac) { #define SAVE_RF_MAX 2 #define SAVE_PHY_COMM_MAX 10 #define SAVE_PHY6_MAX 8 struct bwi_phy *phy = &mac->mac_phy; uint16_t save_rf[SAVE_RF_MAX]; uint16_t save_phy_comm[SAVE_PHY_COMM_MAX]; uint16_t save_phy6[SAVE_PHY6_MAX]; uint16_t rf7b = 0xffff; int16_t nrssi; int i, phy6_idx = 0; static const uint16_t save_rf_regs[SAVE_RF_MAX] = { 0x7a, 0x43 }; static const uint16_t save_phy_comm_regs[SAVE_PHY_COMM_MAX] = { 0x0001, 0x0811, 0x0812, 0x0814, 0x0815, 0x005a, 0x0059, 0x0058, 0x000a, 0x0003 }; static const uint16_t save_phy6_regs[SAVE_PHY6_MAX] = { 0x002e, 0x002f, 0x080f, 0x0810, 0x0801, 0x0060, 0x0014, 0x0478 }; for (i = 0; i < SAVE_PHY_COMM_MAX; ++i) save_phy_comm[i] = PHY_READ(mac, save_phy_comm_regs[i]); for (i = 0; i < SAVE_RF_MAX; ++i) save_rf[i] = RF_READ(mac, save_rf_regs[i]); PHY_CLRBITS(mac, 0x429, 0x8000); PHY_FILT_SETBITS(mac, 0x1, 0x3fff, 0x4000); PHY_SETBITS(mac, 0x811, 0xc); PHY_FILT_SETBITS(mac, 0x812, 0xfff3, 0x4); PHY_CLRBITS(mac, 0x802, 0x3); if (phy->phy_rev >= 6) { for (i = 0; i < SAVE_PHY6_MAX; ++i) save_phy6[i] = PHY_READ(mac, save_phy6_regs[i]); PHY_WRITE(mac, 0x2e, 0); PHY_WRITE(mac, 0x2f, 0); PHY_WRITE(mac, 0x80f, 0); PHY_WRITE(mac, 0x810, 0); PHY_SETBITS(mac, 0x478, 0x100); PHY_SETBITS(mac, 0x801, 0x40); PHY_SETBITS(mac, 0x60, 0x40); PHY_SETBITS(mac, 0x14, 0x200); } RF_SETBITS(mac, 0x7a, 0x70); RF_SETBITS(mac, 0x7a, 0x80); DELAY(30); nrssi = bwi_nrssi_11g(mac); if (nrssi == 31) { for (i = 7; i >= 4; --i) { RF_WRITE(mac, 0x7b, i); DELAY(20); nrssi = bwi_nrssi_11g(mac); if (nrssi < 31 && rf7b == 0xffff) rf7b = i; } if (rf7b == 0xffff) rf7b = 4; } else { struct bwi_gains gains; RF_CLRBITS(mac, 0x7a, 0xff80); PHY_SETBITS(mac, 0x814, 0x1); PHY_CLRBITS(mac, 0x815, 0x1); PHY_SETBITS(mac, 0x811, 0xc); PHY_SETBITS(mac, 0x812, 0xc); PHY_SETBITS(mac, 0x811, 0x30); PHY_SETBITS(mac, 0x812, 0x30); PHY_WRITE(mac, 0x5a, 0x480); PHY_WRITE(mac, 0x59, 0x810); PHY_WRITE(mac, 0x58, 0xd); if (phy->phy_version == 0) PHY_WRITE(mac, 0x3, 0x122); else PHY_SETBITS(mac, 0xa, 0x2000); PHY_SETBITS(mac, 0x814, 0x4); PHY_CLRBITS(mac, 0x815, 0x4); PHY_FILT_SETBITS(mac, 0x3, 0xff9f, 0x40); RF_SETBITS(mac, 0x7a, 0xf); bzero(&gains, sizeof(gains)); gains.tbl_gain1 = 3; gains.tbl_gain2 = 0; gains.phy_gain = 1; bwi_set_gains(mac, &gains); RF_FILT_SETBITS(mac, 0x43, 0xf0, 0xf); DELAY(30); nrssi = bwi_nrssi_11g(mac); if (nrssi == -32) { for (i = 0; i < 4; ++i) { RF_WRITE(mac, 0x7b, i); DELAY(20); nrssi = bwi_nrssi_11g(mac); if (nrssi > -31 && rf7b == 0xffff) rf7b = i; } if (rf7b == 0xffff) rf7b = 3; } else { rf7b = 0; } } RF_WRITE(mac, 0x7b, rf7b); /* * Restore saved RF/PHY registers */ if (phy->phy_rev >= 6) { for (phy6_idx = 0; phy6_idx < 4; ++phy6_idx) { PHY_WRITE(mac, save_phy6_regs[phy6_idx], save_phy6[phy6_idx]); } } /* Saved PHY registers 0, 1, 2 are handled later */ for (i = 3; i < SAVE_PHY_COMM_MAX; ++i) PHY_WRITE(mac, save_phy_comm_regs[i], save_phy_comm[i]); for (i = SAVE_RF_MAX - 1; i >= 0; --i) RF_WRITE(mac, save_rf_regs[i], save_rf[i]); PHY_SETBITS(mac, 0x802, 0x3); PHY_SETBITS(mac, 0x429, 0x8000); bwi_set_gains(mac, NULL); if (phy->phy_rev >= 6) { for (; phy6_idx < SAVE_PHY6_MAX; ++phy6_idx) { PHY_WRITE(mac, save_phy6_regs[phy6_idx], save_phy6[phy6_idx]); } } PHY_WRITE(mac, save_phy_comm_regs[0], save_phy_comm[0]); PHY_WRITE(mac, save_phy_comm_regs[2], save_phy_comm[2]); PHY_WRITE(mac, save_phy_comm_regs[1], save_phy_comm[1]); #undef SAVE_RF_MAX #undef SAVE_PHY_COMM_MAX #undef SAVE_PHY6_MAX } void bwi_rf_calc_nrssi_slope_11g(struct bwi_mac *mac) { #define SAVE_RF_MAX 3 #define SAVE_PHY_COMM_MAX 4 #define SAVE_PHY3_MAX 8 struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; uint16_t save_rf[SAVE_RF_MAX]; uint16_t save_phy_comm[SAVE_PHY_COMM_MAX]; uint16_t save_phy3[SAVE_PHY3_MAX]; uint16_t ant_div, bbp_atten, chan_ex; struct bwi_gains gains; int16_t nrssi[2]; int i, phy3_idx = 0; static const uint16_t save_rf_regs[SAVE_RF_MAX] = { 0x7a, 0x52, 0x43 }; static const uint16_t save_phy_comm_regs[SAVE_PHY_COMM_MAX] = { 0x15, 0x5a, 0x59, 0x58 }; static const uint16_t save_phy3_regs[SAVE_PHY3_MAX] = { 0x002e, 0x002f, 0x080f, 0x0810, 0x0801, 0x0060, 0x0014, 0x0478 }; if (rf->rf_rev >= 9) return; else if (rf->rf_rev == 8) bwi_rf_set_nrssi_ofs_11g(mac); PHY_CLRBITS(mac, 0x429, 0x8000); PHY_CLRBITS(mac, 0x802, 0x3); /* * Save RF/PHY registers for later restoration */ ant_div = CSR_READ_2(sc, BWI_RF_ANTDIV); CSR_SETBITS_2(sc, BWI_RF_ANTDIV, 0x8000); for (i = 0; i < SAVE_RF_MAX; ++i) save_rf[i] = RF_READ(mac, save_rf_regs[i]); for (i = 0; i < SAVE_PHY_COMM_MAX; ++i) save_phy_comm[i] = PHY_READ(mac, save_phy_comm_regs[i]); bbp_atten = CSR_READ_2(sc, BWI_BBP_ATTEN); chan_ex = CSR_READ_2(sc, BWI_RF_CHAN_EX); if (phy->phy_rev >= 3) { for (i = 0; i < SAVE_PHY3_MAX; ++i) save_phy3[i] = PHY_READ(mac, save_phy3_regs[i]); PHY_WRITE(mac, 0x2e, 0); PHY_WRITE(mac, 0x810, 0); if (phy->phy_rev == 4 || phy->phy_rev == 6 || phy->phy_rev == 7) { PHY_SETBITS(mac, 0x478, 0x100); PHY_SETBITS(mac, 0x810, 0x40); } else if (phy->phy_rev == 3 || phy->phy_rev == 5) PHY_CLRBITS(mac, 0x810, 0x40); PHY_SETBITS(mac, 0x60, 0x40); PHY_SETBITS(mac, 0x14, 0x200); } /* * Calculate nrssi0 */ RF_SETBITS(mac, 0x7a, 0x70); bzero(&gains, sizeof(gains)); gains.tbl_gain1 = 0; gains.tbl_gain2 = 8; gains.phy_gain = 0; bwi_set_gains(mac, &gains); RF_CLRBITS(mac, 0x7a, 0xff08); if (phy->phy_rev >= 2) { PHY_FILT_SETBITS(mac, 0x811, 0xffcf, 0x30); PHY_FILT_SETBITS(mac, 0x812, 0xffcf, 0x10); } RF_SETBITS(mac, 0x7a, 0x80); DELAY(20); nrssi[0] = bwi_nrssi_11g(mac); /* * Calculate nrssi1 */ RF_CLRBITS(mac, 0x7a, 0xff80); if (phy->phy_version >= 2) PHY_FILT_SETBITS(mac, 0x3, 0xff9f, 0x40); CSR_SETBITS_2(sc, BWI_RF_CHAN_EX, 0x2000); RF_SETBITS(mac, 0x7a, 0xf); PHY_WRITE(mac, 0x15, 0xf330); if (phy->phy_rev >= 2) { PHY_FILT_SETBITS(mac, 0x812, 0xffcf, 0x20); PHY_FILT_SETBITS(mac, 0x811, 0xffcf, 0x20); } bzero(&gains, sizeof(gains)); gains.tbl_gain1 = 3; gains.tbl_gain2 = 0; gains.phy_gain = 1; bwi_set_gains(mac, &gains); if (rf->rf_rev == 8) { RF_WRITE(mac, 0x43, 0x1f); } else { RF_FILT_SETBITS(mac, 0x52, 0xff0f, 0x60); RF_FILT_SETBITS(mac, 0x43, 0xfff0, 0x9); } PHY_WRITE(mac, 0x5a, 0x480); PHY_WRITE(mac, 0x59, 0x810); PHY_WRITE(mac, 0x58, 0xd); DELAY(20); nrssi[1] = bwi_nrssi_11g(mac); /* * Install calculated narrow RSSI values */ if (nrssi[1] == nrssi[0]) rf->rf_nrssi_slope = 0x10000; else rf->rf_nrssi_slope = 0x400000 / (nrssi[0] - nrssi[1]); if (nrssi[0] >= -4) { rf->rf_nrssi[0] = nrssi[1]; rf->rf_nrssi[1] = nrssi[0]; } /* * Restore saved RF/PHY registers */ if (phy->phy_rev >= 3) { for (phy3_idx = 0; phy3_idx < 4; ++phy3_idx) { PHY_WRITE(mac, save_phy3_regs[phy3_idx], save_phy3[phy3_idx]); } } if (phy->phy_rev >= 2) { PHY_CLRBITS(mac, 0x812, 0x30); PHY_CLRBITS(mac, 0x811, 0x30); } for (i = 0; i < SAVE_RF_MAX; ++i) RF_WRITE(mac, save_rf_regs[i], save_rf[i]); CSR_WRITE_2(sc, BWI_RF_ANTDIV, ant_div); CSR_WRITE_2(sc, BWI_BBP_ATTEN, bbp_atten); CSR_WRITE_2(sc, BWI_RF_CHAN_EX, chan_ex); for (i = 0; i < SAVE_PHY_COMM_MAX; ++i) PHY_WRITE(mac, save_phy_comm_regs[i], save_phy_comm[i]); bwi_rf_workaround(mac, rf->rf_curchan); PHY_SETBITS(mac, 0x802, 0x3); bwi_set_gains(mac, NULL); PHY_SETBITS(mac, 0x429, 0x8000); if (phy->phy_rev >= 3) { for (; phy3_idx < SAVE_PHY3_MAX; ++phy3_idx) { PHY_WRITE(mac, save_phy3_regs[phy3_idx], save_phy3[phy3_idx]); } } bwi_rf_init_sw_nrssi_table(mac); bwi_rf_set_nrssi_thr_11g(mac); #undef SAVE_RF_MAX #undef SAVE_PHY_COMM_MAX #undef SAVE_PHY3_MAX } void bwi_rf_init_sw_nrssi_table(struct bwi_mac *mac) { struct bwi_rf *rf = &mac->mac_rf; int d, i; d = 0x1f - rf->rf_nrssi[0]; for (i = 0; i < BWI_NRSSI_TBLSZ; ++i) { int val; val = (((i - d) * rf->rf_nrssi_slope) / 0x10000) + 0x3a; if (val < 0) val = 0; else if (val > 0x3f) val = 0x3f; rf->rf_nrssi_table[i] = val; } } void bwi_rf_init_hw_nrssi_table(struct bwi_mac *mac, uint16_t adjust) { int i; for (i = 0; i < BWI_NRSSI_TBLSZ; ++i) { int16_t val; val = bwi_nrssi_read(mac, i); val -= adjust; if (val < -32) val = -32; else if (val > 31) val = 31; bwi_nrssi_write(mac, i, val); } } void bwi_rf_set_nrssi_thr_11b(struct bwi_mac *mac) { struct bwi_rf *rf = &mac->mac_rf; int32_t thr; if (rf->rf_type != BWI_RF_T_BCM2050 || (mac->mac_sc->sc_card_flags & BWI_CARD_F_SW_NRSSI) == 0) return; /* * Calculate nrssi threshold */ if (rf->rf_rev >= 6) { thr = (rf->rf_nrssi[1] - rf->rf_nrssi[0]) * 32; thr += 20 * (rf->rf_nrssi[0] + 1); thr /= 40; } else { thr = rf->rf_nrssi[1] - 5; } if (thr < 0) thr = 0; else if (thr > 0x3e) thr = 0x3e; PHY_READ(mac, BWI_PHYR_NRSSI_THR_11B); /* dummy read */ PHY_WRITE(mac, BWI_PHYR_NRSSI_THR_11B, (((uint16_t)thr) << 8) | 0x1c); if (rf->rf_rev >= 6) { PHY_WRITE(mac, 0x87, 0xe0d); PHY_WRITE(mac, 0x86, 0xc0b); PHY_WRITE(mac, 0x85, 0xa09); PHY_WRITE(mac, 0x84, 0x808); PHY_WRITE(mac, 0x83, 0x808); PHY_WRITE(mac, 0x82, 0x604); PHY_WRITE(mac, 0x81, 0x302); PHY_WRITE(mac, 0x80, 0x100); } } int32_t _nrssi_threshold(const struct bwi_rf *rf, int32_t val) { val *= (rf->rf_nrssi[1] - rf->rf_nrssi[0]); val += (rf->rf_nrssi[0] << 6); if (val < 32) val += 31; else val += 32; val >>= 6; if (val < -31) val = -31; else if (val > 31) val = 31; return (val); } void bwi_rf_set_nrssi_thr_11g(struct bwi_mac *mac) { int32_t thr1, thr2; uint16_t thr; /* * Find the two nrssi thresholds */ if ((mac->mac_phy.phy_flags & BWI_PHY_F_LINKED) == 0 || (mac->mac_sc->sc_card_flags & BWI_CARD_F_SW_NRSSI) == 0) { int16_t nrssi; nrssi = bwi_nrssi_read(mac, 0x20); if (nrssi >= 32) nrssi -= 64; if (nrssi < 3) { thr1 = 0x2b; thr2 = 0x27; } else { thr1 = 0x2d; thr2 = 0x2b; } } else { /* TODO Interfere mode */ thr1 = _nrssi_threshold(&mac->mac_rf, 0x11); thr2 = _nrssi_threshold(&mac->mac_rf, 0xe); } #define NRSSI_THR1_MASK 0x003f #define NRSSI_THR2_MASK 0x0fc0 thr = __SHIFTIN((uint32_t)thr1, NRSSI_THR1_MASK) | __SHIFTIN((uint32_t)thr2, NRSSI_THR2_MASK); PHY_FILT_SETBITS(mac, BWI_PHYR_NRSSI_THR_11G, 0xf000, thr); #undef NRSSI_THR1_MASK #undef NRSSI_THR2_MASK } void bwi_rf_clear_tssi(struct bwi_mac *mac) { /* XXX use function pointer */ if (mac->mac_phy.phy_mode == IEEE80211_MODE_11A) { /* TODO: 11A */ } else { uint16_t val; int i; val = __SHIFTIN(BWI_INVALID_TSSI, BWI_LO_TSSI_MASK) | __SHIFTIN(BWI_INVALID_TSSI, BWI_HI_TSSI_MASK); for (i = 0; i < 2; ++i) { MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_TSSI_DS + (i * 2), val); } for (i = 0; i < 2; ++i) { MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_TSSI_OFDM + (i * 2), val); } } } void bwi_rf_clear_state(struct bwi_rf *rf) { int i; rf->rf_flags &= ~BWI_RF_CLEAR_FLAGS; bzero(rf->rf_lo, sizeof(rf->rf_lo)); bzero(rf->rf_lo_used, sizeof(rf->rf_lo_used)); rf->rf_nrssi_slope = 0; rf->rf_nrssi[0] = BWI_INVALID_NRSSI; rf->rf_nrssi[1] = BWI_INVALID_NRSSI; for (i = 0; i < BWI_NRSSI_TBLSZ; ++i) rf->rf_nrssi_table[i] = i; rf->rf_lo_gain = 0; rf->rf_rx_gain = 0; bcopy(rf->rf_txpower_map0, rf->rf_txpower_map, sizeof(rf->rf_txpower_map)); rf->rf_idle_tssi = rf->rf_idle_tssi0; } void bwi_rf_on_11a(struct bwi_mac *mac) { /* TODO: 11A */ } void bwi_rf_on_11bg(struct bwi_mac *mac) { struct bwi_phy *phy = &mac->mac_phy; PHY_WRITE(mac, 0x15, 0x8000); PHY_WRITE(mac, 0x15, 0xcc00); if (phy->phy_flags & BWI_PHY_F_LINKED) PHY_WRITE(mac, 0x15, 0xc0); else PHY_WRITE(mac, 0x15, 0); bwi_rf_set_chan(mac, 6 /* XXX */, 1); } void bwi_rf_set_ant_mode(struct bwi_mac *mac, int ant_mode) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; uint16_t val; KASSERT(ant_mode == BWI_ANT_MODE_0 || ant_mode == BWI_ANT_MODE_1 || ant_mode == BWI_ANT_MODE_AUTO); HFLAGS_CLRBITS(mac, BWI_HFLAG_AUTO_ANTDIV); if (phy->phy_mode == IEEE80211_MODE_11B) { /* NOTE: v4/v3 conflicts, take v3 */ if (mac->mac_rev == 2) val = BWI_ANT_MODE_AUTO; else val = ant_mode; val <<= 7; PHY_FILT_SETBITS(mac, 0x3e2, 0xfe7f, val); } else { /* 11a/g */ /* XXX reg/value naming */ val = ant_mode << 7; PHY_FILT_SETBITS(mac, 0x401, 0x7e7f, val); if (ant_mode == BWI_ANT_MODE_AUTO) PHY_CLRBITS(mac, 0x42b, 0x100); if (phy->phy_mode == IEEE80211_MODE_11A) { /* TODO: 11A */ } else { /* 11g */ if (ant_mode == BWI_ANT_MODE_AUTO) PHY_SETBITS(mac, 0x48c, 0x2000); else PHY_CLRBITS(mac, 0x48c, 0x2000); if (phy->phy_rev >= 2) { PHY_SETBITS(mac, 0x461, 0x10); PHY_FILT_SETBITS(mac, 0x4ad, 0xff00, 0x15); if (phy->phy_rev == 2) { PHY_WRITE(mac, 0x427, 0x8); } else { PHY_FILT_SETBITS(mac, 0x427, 0xff00, 0x8); } if (phy->phy_rev >= 6) PHY_WRITE(mac, 0x49b, 0xdc); } } } /* XXX v4 set AUTO_ANTDIV unconditionally */ if (ant_mode == BWI_ANT_MODE_AUTO) HFLAGS_SETBITS(mac, BWI_HFLAG_AUTO_ANTDIV); val = ant_mode << 8; MOBJ_FILT_SETBITS_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_TX_BEACON, 0xfc3f, val); MOBJ_FILT_SETBITS_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_TX_ACK, 0xfc3f, val); MOBJ_FILT_SETBITS_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_TX_PROBE_RESP, 0xfc3f, val); /* XXX what's these */ if (phy->phy_mode == IEEE80211_MODE_11B) CSR_SETBITS_2(sc, 0x5e, 0x4); CSR_WRITE_4(sc, 0x100, 0x1000000); if (mac->mac_rev < 5) CSR_WRITE_4(sc, 0x10c, 0x1000000); mac->mac_rf.rf_ant_mode = ant_mode; } int bwi_rf_get_latest_tssi(struct bwi_mac *mac, int8_t tssi[], uint16_t ofs) { int i; for (i = 0; i < 4; ) { uint16_t val; val = MOBJ_READ_2(mac, BWI_COMM_MOBJ, ofs + i); tssi[i++] = (int8_t)__SHIFTOUT(val, BWI_LO_TSSI_MASK); tssi[i++] = (int8_t)__SHIFTOUT(val, BWI_HI_TSSI_MASK); } for (i = 0; i < 4; ++i) { if (tssi[i] == BWI_INVALID_TSSI) return (EINVAL); } return (0); } int bwi_rf_tssi2dbm(struct bwi_mac *mac, int8_t tssi, int8_t *txpwr) { struct bwi_rf *rf = &mac->mac_rf; int pwr_idx; pwr_idx = rf->rf_idle_tssi + (int)tssi - rf->rf_base_tssi; #if 0 if (pwr_idx < 0 || pwr_idx >= BWI_TSSI_MAX) return EINVAL; #else if (pwr_idx < 0) pwr_idx = 0; else if (pwr_idx >= BWI_TSSI_MAX) pwr_idx = BWI_TSSI_MAX - 1; #endif *txpwr = rf->rf_txpower_map[pwr_idx]; return (0); } int bwi_rf_calc_rssi_bcm2050(struct bwi_mac *mac, const struct bwi_rxbuf_hdr *hdr) { uint16_t flags1, flags3; int rssi, lna_gain; rssi = hdr->rxh_rssi; flags1 = letoh16(hdr->rxh_flags1); flags3 = letoh16(hdr->rxh_flags3); #define NEW_BCM2050_RSSI #ifdef NEW_BCM2050_RSSI if (flags1 & BWI_RXH_F1_OFDM) { if (rssi > 127) rssi -= 256; if (flags3 & BWI_RXH_F3_BCM2050_RSSI) rssi += 17; else rssi -= 4; return (rssi); } if (mac->mac_sc->sc_card_flags & BWI_CARD_F_SW_NRSSI) { struct bwi_rf *rf = &mac->mac_rf; if (rssi >= BWI_NRSSI_TBLSZ) rssi = BWI_NRSSI_TBLSZ - 1; rssi = ((31 - (int)rf->rf_nrssi_table[rssi]) * -131) / 128; rssi -= 67; } else { rssi = ((31 - rssi) * -149) / 128; rssi -= 68; } if (mac->mac_phy.phy_mode != IEEE80211_MODE_11G) return (rssi); if (flags3 & BWI_RXH_F3_BCM2050_RSSI) rssi += 20; lna_gain = __SHIFTOUT(letoh16(hdr->rxh_phyinfo), BWI_RXH_PHYINFO_LNAGAIN); DPRINTF(3, "lna_gain %d, phyinfo 0x%04x\n", lna_gain, letoh16(hdr->rxh_phyinfo)); switch (lna_gain) { case 0: rssi += 27; break; case 1: rssi += 6; break; case 2: rssi += 12; break; case 3: /* * XXX * According to v3 spec, we should do _nothing_ here, * but it seems that the result RSSI will be too low * (relative to what ath(4) says). Raise it a little * bit. */ rssi += 5; break; default: panic("impossible lna gain %d", lna_gain); } #else /* !NEW_BCM2050_RSSI */ lna_gain = 0; /* shut up gcc warning */ if (flags1 & BWI_RXH_F1_OFDM) { if (rssi > 127) rssi -= 256; rssi = (rssi * 73) / 64; if (flags3 & BWI_RXH_F3_BCM2050_RSSI) rssi += 25; else rssi -= 3; return (rssi); } if (mac->mac_sc->sc_card_flags & BWI_CARD_F_SW_NRSSI) { struct bwi_rf *rf = &mac->mac_rf; if (rssi >= BWI_NRSSI_TBLSZ) rssi = BWI_NRSSI_TBLSZ - 1; rssi = ((31 - (int)rf->rf_nrssi_table[rssi]) * -131) / 128; rssi -= 57; } else { rssi = ((31 - rssi) * -149) / 128; rssi -= 68; } if (mac->mac_phy.phy_mode != IEEE80211_MODE_11G) return (rssi); if (flags3 & BWI_RXH_F3_BCM2050_RSSI) rssi += 25; #endif /* NEW_BCM2050_RSSI */ return (rssi); } int bwi_rf_calc_rssi_bcm2053(struct bwi_mac *mac, const struct bwi_rxbuf_hdr *hdr) { uint16_t flags1; int rssi; rssi = (((int)hdr->rxh_rssi - 11) * 103) / 64; flags1 = letoh16(hdr->rxh_flags1); if (flags1 & BWI_RXH_F1_BCM2053_RSSI) rssi -= 109; else rssi -= 83; return (rssi); } int bwi_rf_calc_rssi_bcm2060(struct bwi_mac *mac, const struct bwi_rxbuf_hdr *hdr) { int rssi; rssi = hdr->rxh_rssi; if (rssi > 127) rssi -= 256; return (rssi); } uint16_t bwi_rf_lo_measure_11b(struct bwi_mac *mac) { uint16_t val; int i; val = 0; for (i = 0; i < 10; ++i) { PHY_WRITE(mac, 0x15, 0xafa0); DELAY(1); PHY_WRITE(mac, 0x15, 0xefa0); DELAY(10); PHY_WRITE(mac, 0x15, 0xffa0); DELAY(40); val += PHY_READ(mac, 0x2c); } return (val); } void bwi_rf_lo_update_11b(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct rf_saveregs regs; uint16_t rf_val, phy_val, min_val, val; uint16_t rf52, bphy_ctrl; int i; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); bzero(®s, sizeof(regs)); bphy_ctrl = 0; /* * Save RF/PHY registers for later restoration */ SAVE_PHY_REG(mac, ®s, 15); rf52 = RF_READ(mac, 0x52) & 0xfff0; if (rf->rf_type == BWI_RF_T_BCM2050) { SAVE_PHY_REG(mac, ®s, 0a); SAVE_PHY_REG(mac, ®s, 2a); SAVE_PHY_REG(mac, ®s, 35); SAVE_PHY_REG(mac, ®s, 03); SAVE_PHY_REG(mac, ®s, 01); SAVE_PHY_REG(mac, ®s, 30); SAVE_RF_REG(mac, ®s, 43); SAVE_RF_REG(mac, ®s, 7a); bphy_ctrl = CSR_READ_2(sc, BWI_BPHY_CTRL); SAVE_RF_REG(mac, ®s, 52); regs.rf_52 &= 0xf0; PHY_WRITE(mac, 0x30, 0xff); CSR_WRITE_2(sc, BWI_PHY_CTRL, 0x3f3f); PHY_WRITE(mac, 0x35, regs.phy_35 & 0xff7f); RF_WRITE(mac, 0x7a, regs.rf_7a & 0xfff0); } PHY_WRITE(mac, 0x15, 0xb000); if (rf->rf_type == BWI_RF_T_BCM2050) { PHY_WRITE(mac, 0x2b, 0x203); PHY_WRITE(mac, 0x2a, 0x8a3); } else { PHY_WRITE(mac, 0x2b, 0x1402); } /* * Setup RF signal */ rf_val = 0; min_val = 65535; for (i = 0; i < 4; ++i) { RF_WRITE(mac, 0x52, rf52 | i); bwi_rf_lo_measure_11b(mac); /* Ignore return value */ } for (i = 0; i < 10; ++i) { RF_WRITE(mac, 0x52, rf52 | i); val = bwi_rf_lo_measure_11b(mac) / 10; if (val < min_val) { min_val = val; rf_val = i; } } RF_WRITE(mac, 0x52, rf52 | rf_val); /* * Setup PHY signal */ phy_val = 0; min_val = 65535; for (i = -4; i < 5; i += 2) { int j; for (j = -4; j < 5; j += 2) { uint16_t phy2f; phy2f = (0x100 * i) + j; if (j < 0) phy2f += 0x100; PHY_WRITE(mac, 0x2f, phy2f); val = bwi_rf_lo_measure_11b(mac) / 10; if (val < min_val) { min_val = val; phy_val = phy2f; } } } PHY_WRITE(mac, 0x2f, phy_val + 0x101); /* * Restore saved RF/PHY registers */ if (rf->rf_type == BWI_RF_T_BCM2050) { RESTORE_PHY_REG(mac, ®s, 0a); RESTORE_PHY_REG(mac, ®s, 2a); RESTORE_PHY_REG(mac, ®s, 35); RESTORE_PHY_REG(mac, ®s, 03); RESTORE_PHY_REG(mac, ®s, 01); RESTORE_PHY_REG(mac, ®s, 30); RESTORE_RF_REG(mac, ®s, 43); RESTORE_RF_REG(mac, ®s, 7a); RF_FILT_SETBITS(mac, 0x52, 0xf, regs.rf_52); CSR_WRITE_2(sc, BWI_BPHY_CTRL, bphy_ctrl); } RESTORE_PHY_REG(mac, ®s, 15); bwi_rf_workaround(mac, rf->rf_curchan); } /* INTERFACE */ uint16_t bwi_read_sprom(struct bwi_softc *sc, uint16_t ofs) { return (CSR_READ_2(sc, ofs + BWI_SPROM_START)); } void bwi_setup_desc32(struct bwi_softc *sc, struct bwi_desc32 *desc_array, int ndesc, int desc_idx, bus_addr_t paddr, int buf_len, int tx) { struct bwi_desc32 *desc = &desc_array[desc_idx]; uint32_t ctrl, addr, addr_hi, addr_lo; addr_lo = __SHIFTOUT(paddr, BWI_DESC32_A_ADDR_MASK); addr_hi = __SHIFTOUT(paddr, BWI_DESC32_A_FUNC_MASK); addr = __SHIFTIN(addr_lo, BWI_DESC32_A_ADDR_MASK) | __SHIFTIN(BWI_DESC32_A_FUNC_TXRX, BWI_DESC32_A_FUNC_MASK); ctrl = __SHIFTIN(buf_len, BWI_DESC32_C_BUFLEN_MASK) | __SHIFTIN(addr_hi, BWI_DESC32_C_ADDRHI_MASK); if (desc_idx == ndesc - 1) ctrl |= BWI_DESC32_C_EOR; if (tx) { /* XXX */ ctrl |= BWI_DESC32_C_FRAME_START | BWI_DESC32_C_FRAME_END | BWI_DESC32_C_INTR; } desc->addr = htole32(addr); desc->ctrl = htole32(ctrl); } void bwi_power_on(struct bwi_softc *sc, int with_pll) { uint32_t gpio_in, gpio_out, gpio_en, status; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); gpio_in = (sc->sc_conf_read)(sc, BWI_PCIR_GPIO_IN); if (gpio_in & BWI_PCIM_GPIO_PWR_ON) goto back; gpio_out = (sc->sc_conf_read)(sc, BWI_PCIR_GPIO_OUT); gpio_en = (sc->sc_conf_read)(sc, BWI_PCIR_GPIO_ENABLE); gpio_out |= BWI_PCIM_GPIO_PWR_ON; gpio_en |= BWI_PCIM_GPIO_PWR_ON; if (with_pll) { /* Turn off PLL first */ gpio_out |= BWI_PCIM_GPIO_PLL_PWR_OFF; gpio_en |= BWI_PCIM_GPIO_PLL_PWR_OFF; } (sc->sc_conf_write)(sc, BWI_PCIR_GPIO_OUT, gpio_out); (sc->sc_conf_write)(sc, BWI_PCIR_GPIO_ENABLE, gpio_en); DELAY(1000); if (with_pll) { /* Turn on PLL */ gpio_out &= ~BWI_PCIM_GPIO_PLL_PWR_OFF; (sc->sc_conf_write)(sc, BWI_PCIR_GPIO_OUT, gpio_out); DELAY(5000); } back: /* Clear "Signaled Target Abort" */ status = (sc->sc_conf_read)(sc, PCI_COMMAND_STATUS_REG); status &= ~PCI_STATUS_TARGET_TARGET_ABORT; (sc->sc_conf_write)(sc, PCI_COMMAND_STATUS_REG, status); } int bwi_power_off(struct bwi_softc *sc, int with_pll) { uint32_t gpio_out, gpio_en; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); (sc->sc_conf_read)(sc, BWI_PCIR_GPIO_IN); /* dummy read */ gpio_out = (sc->sc_conf_read)(sc, BWI_PCIR_GPIO_OUT); gpio_en = (sc->sc_conf_read)(sc, BWI_PCIR_GPIO_ENABLE); gpio_out &= ~BWI_PCIM_GPIO_PWR_ON; gpio_en |= BWI_PCIM_GPIO_PWR_ON; if (with_pll) { gpio_out |= BWI_PCIM_GPIO_PLL_PWR_OFF; gpio_en |= BWI_PCIM_GPIO_PLL_PWR_OFF; } (sc->sc_conf_write)(sc, BWI_PCIR_GPIO_OUT, gpio_out); (sc->sc_conf_write)(sc, BWI_PCIR_GPIO_ENABLE, gpio_en); return (0); } int bwi_regwin_switch(struct bwi_softc *sc, struct bwi_regwin *rw, struct bwi_regwin **old_rw) { int error; if (old_rw != NULL) *old_rw = NULL; if (!BWI_REGWIN_EXIST(rw)) return (EINVAL); if (sc->sc_cur_regwin != rw) { error = bwi_regwin_select(sc, rw->rw_id); if (error) { printf("%s: can't select regwin %d\n", sc->sc_dev.dv_xname, rw->rw_id); return (error); } } if (old_rw != NULL) *old_rw = sc->sc_cur_regwin; sc->sc_cur_regwin = rw; return (0); } int bwi_regwin_select(struct bwi_softc *sc, int id) { uint32_t win = BWI_PCIM_REGWIN(id); int i; #define RETRY_MAX 50 for (i = 0; i < RETRY_MAX; ++i) { (sc->sc_conf_write)(sc, BWI_PCIR_SEL_REGWIN, win); if ((sc->sc_conf_read)(sc, BWI_PCIR_SEL_REGWIN) == win) return (0); DELAY(10); } #undef RETRY_MAX return (ENXIO); } void bwi_regwin_info(struct bwi_softc *sc, uint16_t *type, uint8_t *rev) { uint32_t val; val = CSR_READ_4(sc, BWI_ID_HI); *type = BWI_ID_HI_REGWIN_TYPE(val); *rev = BWI_ID_HI_REGWIN_REV(val); DPRINTF(1, "%s: regwin: type 0x%03x, rev %d, vendor 0x%04x\n", sc->sc_dev.dv_xname, *type, *rev, __SHIFTOUT(val, BWI_ID_HI_REGWIN_VENDOR_MASK)); } void bwi_led_attach(struct bwi_softc *sc) { const uint8_t *led_act = NULL; uint16_t gpio, val[BWI_LED_MAX]; int i; #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) for (i = 0; i < N(bwi_vendor_led_act); ++i) { if (sc->sc_pci_subvid == bwi_vendor_led_act[i].vid) { led_act = bwi_vendor_led_act[i].led_act; break; } } if (led_act == NULL) led_act = bwi_default_led_act; #undef N gpio = bwi_read_sprom(sc, BWI_SPROM_GPIO01); val[0] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_0); val[1] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_1); gpio = bwi_read_sprom(sc, BWI_SPROM_GPIO23); val[2] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_2); val[3] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_3); for (i = 0; i < BWI_LED_MAX; ++i) { struct bwi_led *led = &sc->sc_leds[i]; if (val[i] == 0xff) { led->l_act = led_act[i]; } else { if (val[i] & BWI_LED_ACT_LOW) led->l_flags |= BWI_LED_F_ACTLOW; led->l_act = __SHIFTOUT(val[i], BWI_LED_ACT_MASK); } led->l_mask = (1 << i); if (led->l_act == BWI_LED_ACT_BLINK_SLOW || led->l_act == BWI_LED_ACT_BLINK_POLL || led->l_act == BWI_LED_ACT_BLINK) { led->l_flags |= BWI_LED_F_BLINK; if (led->l_act == BWI_LED_ACT_BLINK_POLL) led->l_flags |= BWI_LED_F_POLLABLE; else if (led->l_act == BWI_LED_ACT_BLINK_SLOW) led->l_flags |= BWI_LED_F_SLOW; if (sc->sc_blink_led == NULL) { sc->sc_blink_led = led; if (led->l_flags & BWI_LED_F_SLOW) BWI_LED_SLOWDOWN(sc->sc_led_idle); } } DPRINTF(1, "%s: %dth led, act %d, lowact %d\n", sc->sc_dev.dv_xname, i, led->l_act, led->l_flags & BWI_LED_F_ACTLOW); } timeout_set(&sc->sc_led_blink_next_ch, bwi_led_blink_next, sc); timeout_set(&sc->sc_led_blink_end_ch, bwi_led_blink_end, sc); } uint16_t bwi_led_onoff(struct bwi_led *led, uint16_t val, int on) { if (led->l_flags & BWI_LED_F_ACTLOW) on = !on; if (on) val |= led->l_mask; else val &= ~led->l_mask; return (val); } void bwi_led_newstate(struct bwi_softc *sc, enum ieee80211_state nstate) { struct ieee80211com *ic = &sc->sc_ic; uint16_t val; int i; if (nstate == IEEE80211_S_INIT) { timeout_del(&sc->sc_led_blink_next_ch); timeout_del(&sc->sc_led_blink_end_ch); sc->sc_led_blinking = 0; } if ((ic->ic_if.if_flags & IFF_RUNNING) == 0) return; val = CSR_READ_2(sc, BWI_MAC_GPIO_CTRL); for (i = 0; i < BWI_LED_MAX; ++i) { struct bwi_led *led = &sc->sc_leds[i]; int on; if (led->l_act == BWI_LED_ACT_UNKN || led->l_act == BWI_LED_ACT_NULL) continue; if ((led->l_flags & BWI_LED_F_BLINK) && nstate != IEEE80211_S_INIT) continue; switch (led->l_act) { case BWI_LED_ACT_ON: /* Always on */ on = 1; break; case BWI_LED_ACT_OFF: /* Always off */ case BWI_LED_ACT_5GHZ: /* TODO: 11A */ on = 0; break; default: on = 1; switch (nstate) { case IEEE80211_S_INIT: on = 0; break; case IEEE80211_S_RUN: if (led->l_act == BWI_LED_ACT_11G && ic->ic_curmode != IEEE80211_MODE_11G) on = 0; break; default: if (led->l_act == BWI_LED_ACT_ASSOC) on = 0; break; } break; } val = bwi_led_onoff(led, val, on); } CSR_WRITE_2(sc, BWI_MAC_GPIO_CTRL, val); } void bwi_led_event(struct bwi_softc *sc, int event) { struct bwi_led *led = sc->sc_blink_led; int rate; if (event == BWI_LED_EVENT_POLL) { if ((led->l_flags & BWI_LED_F_POLLABLE) == 0) return; if (ticks - sc->sc_led_ticks < sc->sc_led_idle) return; } sc->sc_led_ticks = ticks; if (sc->sc_led_blinking) return; switch (event) { case BWI_LED_EVENT_RX: rate = sc->sc_rx_rate; break; case BWI_LED_EVENT_TX: rate = sc->sc_tx_rate; break; case BWI_LED_EVENT_POLL: rate = 0; break; default: panic("unknown LED event %d\n", event); break; } bwi_led_blink_start(sc, bwi_led_duration[rate].on_dur, bwi_led_duration[rate].off_dur); } void bwi_led_blink_start(struct bwi_softc *sc, int on_dur, int off_dur) { struct bwi_led *led = sc->sc_blink_led; uint16_t val; val = CSR_READ_2(sc, BWI_MAC_GPIO_CTRL); val = bwi_led_onoff(led, val, 1); CSR_WRITE_2(sc, BWI_MAC_GPIO_CTRL, val); if (led->l_flags & BWI_LED_F_SLOW) { BWI_LED_SLOWDOWN(on_dur); BWI_LED_SLOWDOWN(off_dur); } sc->sc_led_blinking = 1; sc->sc_led_blink_offdur = off_dur; timeout_add(&sc->sc_led_blink_next_ch, on_dur); } void bwi_led_blink_next(void *xsc) { struct bwi_softc *sc = xsc; uint16_t val; val = CSR_READ_2(sc, BWI_MAC_GPIO_CTRL); val = bwi_led_onoff(sc->sc_blink_led, val, 0); CSR_WRITE_2(sc, BWI_MAC_GPIO_CTRL, val); timeout_add(&sc->sc_led_blink_end_ch, sc->sc_led_blink_offdur); } void bwi_led_blink_end(void *xsc) { struct bwi_softc *sc = xsc; sc->sc_led_blinking = 0; } int bwi_bbp_attach(struct bwi_softc *sc) { #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) uint16_t bbp_id, rw_type; uint8_t rw_rev; uint32_t info; int error, nregwin, i; /* * Get 0th regwin information * NOTE: 0th regwin should exist */ error = bwi_regwin_select(sc, 0); if (error) { printf("%s: can't select regwin 0\n", sc->sc_dev.dv_xname); return (error); } bwi_regwin_info(sc, &rw_type, &rw_rev); /* * Find out BBP id */ bbp_id = 0; info = 0; if (rw_type == BWI_REGWIN_T_COM) { info = CSR_READ_4(sc, BWI_INFO); bbp_id = __SHIFTOUT(info, BWI_INFO_BBPID_MASK); BWI_CREATE_REGWIN(&sc->sc_com_regwin, 0, rw_type, rw_rev); sc->sc_cap = CSR_READ_4(sc, BWI_CAPABILITY); } else { uint16_t did = sc->sc_pci_did; uint8_t revid = sc->sc_pci_revid; for (i = 0; i < N(bwi_bbpid_map); ++i) { if (did >= bwi_bbpid_map[i].did_min && did <= bwi_bbpid_map[i].did_max) { bbp_id = bwi_bbpid_map[i].bbp_id; break; } } if (bbp_id == 0) { printf("%s: no BBP id for device id 0x%04x\n", sc->sc_dev.dv_xname, did); return (ENXIO); } info = __SHIFTIN(revid, BWI_INFO_BBPREV_MASK) | __SHIFTIN(0, BWI_INFO_BBPPKG_MASK); } /* * Find out number of regwins */ nregwin = 0; if (rw_type == BWI_REGWIN_T_COM && rw_rev >= 4) { nregwin = __SHIFTOUT(info, BWI_INFO_NREGWIN_MASK); } else { for (i = 0; i < N(bwi_regwin_count); ++i) { if (bwi_regwin_count[i].bbp_id == bbp_id) { nregwin = bwi_regwin_count[i].nregwin; break; } } if (nregwin == 0) { printf("%s: no number of win for BBP id 0x%04x\n", sc->sc_dev.dv_xname, bbp_id); return (ENXIO); } } /* Record BBP id/rev for later using */ sc->sc_bbp_id = bbp_id; sc->sc_bbp_rev = __SHIFTOUT(info, BWI_INFO_BBPREV_MASK); sc->sc_bbp_pkg = __SHIFTOUT(info, BWI_INFO_BBPPKG_MASK); DPRINTF(1, "%s: BBP id 0x%04x, BBP rev 0x%x, BBP pkg %d\n", sc->sc_dev.dv_xname, sc->sc_bbp_id, sc->sc_bbp_rev, sc->sc_bbp_pkg); DPRINTF(1, "%s: nregwin %d, cap 0x%08x\n", sc->sc_dev.dv_xname, nregwin, sc->sc_cap); /* * Create rest of the regwins */ /* Don't re-create common regwin, if it is already created */ i = BWI_REGWIN_EXIST(&sc->sc_com_regwin) ? 1 : 0; for (; i < nregwin; ++i) { /* * Get regwin information */ error = bwi_regwin_select(sc, i); if (error) { printf("%s: can't select regwin %d\n", sc->sc_dev.dv_xname, i); return (error); } bwi_regwin_info(sc, &rw_type, &rw_rev); /* * Try attach: * 1) Bus (PCI/PCIE) regwin * 2) MAC regwin * Ignore rest types of regwin */ if (rw_type == BWI_REGWIN_T_BUSPCI || rw_type == BWI_REGWIN_T_BUSPCIE) { if (BWI_REGWIN_EXIST(&sc->sc_bus_regwin)) { printf("%s: bus regwin already exists\n", sc->sc_dev.dv_xname); } else { BWI_CREATE_REGWIN(&sc->sc_bus_regwin, i, rw_type, rw_rev); } } else if (rw_type == BWI_REGWIN_T_MAC) { /* XXX ignore return value */ bwi_mac_attach(sc, i, rw_rev); } } /* At least one MAC shold exist */ if (!BWI_REGWIN_EXIST(&sc->sc_mac[0].mac_regwin)) { printf("%s: no MAC was found\n", sc->sc_dev.dv_xname); return (ENXIO); } KASSERT(sc->sc_nmac > 0); /* Bus regwin must exist */ if (!BWI_REGWIN_EXIST(&sc->sc_bus_regwin)) { printf("%s: no bus regwin was found\n", sc->sc_dev.dv_xname); return (ENXIO); } /* Start with first MAC */ error = bwi_regwin_switch(sc, &sc->sc_mac[0].mac_regwin, NULL); if (error) return (error); return (0); #undef N } int bwi_bus_init(struct bwi_softc *sc, struct bwi_mac *mac) { struct bwi_regwin *old, *bus; uint32_t val; int error; bus = &sc->sc_bus_regwin; KASSERT(sc->sc_cur_regwin == &mac->mac_regwin); /* * Tell bus to generate requested interrupts */ if (bus->rw_rev < 6 && bus->rw_type == BWI_REGWIN_T_BUSPCI) { /* * NOTE: Read BWI_FLAGS from MAC regwin */ val = CSR_READ_4(sc, BWI_FLAGS); error = bwi_regwin_switch(sc, bus, &old); if (error) return (error); CSR_SETBITS_4(sc, BWI_INTRVEC, (val & BWI_FLAGS_INTR_MASK)); } else { uint32_t mac_mask; mac_mask = 1 << mac->mac_id; error = bwi_regwin_switch(sc, bus, &old); if (error) return (error); val = (sc->sc_conf_read)(sc, BWI_PCIR_INTCTL); val |= mac_mask << 8; (sc->sc_conf_write)(sc, BWI_PCIR_INTCTL, val); } if (sc->sc_flags & BWI_F_BUS_INITED) goto back; if (bus->rw_type == BWI_REGWIN_T_BUSPCI) { /* * Enable prefetch and burst */ CSR_SETBITS_4(sc, BWI_BUS_CONFIG, BWI_BUS_CONFIG_PREFETCH | BWI_BUS_CONFIG_BURST); if (bus->rw_rev < 5) { struct bwi_regwin *com = &sc->sc_com_regwin; /* * Configure timeouts for bus operation */ /* * Set service timeout and request timeout */ CSR_SETBITS_4(sc, BWI_CONF_LO, __SHIFTIN(BWI_CONF_LO_SERVTO, BWI_CONF_LO_SERVTO_MASK) | __SHIFTIN(BWI_CONF_LO_REQTO, BWI_CONF_LO_REQTO_MASK)); /* * If there is common regwin, we switch to that regwin * and switch back to bus regwin once we have done. */ if (BWI_REGWIN_EXIST(com)) { error = bwi_regwin_switch(sc, com, NULL); if (error) return (error); } /* Let bus know what we have changed */ CSR_WRITE_4(sc, BWI_BUS_ADDR, BWI_BUS_ADDR_MAGIC); CSR_READ_4(sc, BWI_BUS_ADDR); /* Flush */ CSR_WRITE_4(sc, BWI_BUS_DATA, 0); CSR_READ_4(sc, BWI_BUS_DATA); /* Flush */ if (BWI_REGWIN_EXIST(com)) { error = bwi_regwin_switch(sc, bus, NULL); if (error) return (error); } } else if (bus->rw_rev >= 11) { /* * Enable memory read multiple */ CSR_SETBITS_4(sc, BWI_BUS_CONFIG, BWI_BUS_CONFIG_MRM); } } else { /* TODO: PCIE */ } sc->sc_flags |= BWI_F_BUS_INITED; back: return (bwi_regwin_switch(sc, old, NULL)); } void bwi_get_card_flags(struct bwi_softc *sc) { sc->sc_card_flags = bwi_read_sprom(sc, BWI_SPROM_CARD_FLAGS); if (sc->sc_card_flags == 0xffff) sc->sc_card_flags = 0; if (sc->sc_pci_subvid == PCI_VENDOR_APPLE && sc->sc_pci_subdid == 0x4e && /* XXX */ sc->sc_pci_revid > 0x40) sc->sc_card_flags |= BWI_CARD_F_PA_GPIO9; DPRINTF(1, "%s: card flags 0x%04x\n", sc->sc_dev.dv_xname, sc->sc_card_flags); } void bwi_get_eaddr(struct bwi_softc *sc, uint16_t eaddr_ofs, uint8_t *eaddr) { int i; for (i = 0; i < 3; ++i) { *((uint16_t *)eaddr + i) = htobe16(bwi_read_sprom(sc, eaddr_ofs + 2 * i)); } } void bwi_get_clock_freq(struct bwi_softc *sc, struct bwi_clock_freq *freq) { struct bwi_regwin *com; uint32_t val; uint div; int src; bzero(freq, sizeof(*freq)); com = &sc->sc_com_regwin; KASSERT(BWI_REGWIN_EXIST(com)); KASSERT(sc->sc_cur_regwin == com); KASSERT(sc->sc_cap & BWI_CAP_CLKMODE); /* * Calculate clock frequency */ src = -1; div = 0; if (com->rw_rev < 6) { val = (sc->sc_conf_read)(sc, BWI_PCIR_GPIO_OUT); if (val & BWI_PCIM_GPIO_OUT_CLKSRC) { src = BWI_CLKSRC_PCI; div = 64; } else { src = BWI_CLKSRC_CS_OSC; div = 32; } } else if (com->rw_rev < 10) { val = CSR_READ_4(sc, BWI_CLOCK_CTRL); src = __SHIFTOUT(val, BWI_CLOCK_CTRL_CLKSRC); if (src == BWI_CLKSRC_LP_OSC) div = 1; else { div = (__SHIFTOUT(val, BWI_CLOCK_CTRL_FDIV) + 1) << 2; /* Unknown source */ if (src >= BWI_CLKSRC_MAX) src = BWI_CLKSRC_CS_OSC; } } else { val = CSR_READ_4(sc, BWI_CLOCK_INFO); src = BWI_CLKSRC_CS_OSC; div = (__SHIFTOUT(val, BWI_CLOCK_INFO_FDIV) + 1) << 2; } KASSERT(src >= 0 && src < BWI_CLKSRC_MAX); KASSERT(div != 0); DPRINTF(1, "%s: clksrc %s\n", sc->sc_dev.dv_xname, src == BWI_CLKSRC_PCI ? "PCI" : (src == BWI_CLKSRC_LP_OSC ? "LP_OSC" : "CS_OSC")); freq->clkfreq_min = bwi_clkfreq[src].freq_min / div; freq->clkfreq_max = bwi_clkfreq[src].freq_max / div; DPRINTF(1, "%s: clkfreq min %u, max %u\n", sc->sc_dev.dv_xname, freq->clkfreq_min, freq->clkfreq_max); } int bwi_set_clock_mode(struct bwi_softc *sc, enum bwi_clock_mode clk_mode) { struct bwi_regwin *old, *com; uint32_t clk_ctrl, clk_src; int error, pwr_off = 0; com = &sc->sc_com_regwin; if (!BWI_REGWIN_EXIST(com)) return (0); if (com->rw_rev >= 10 || com->rw_rev < 6) return (0); /* * For common regwin whose rev is [6, 10), the chip * must be capable to change clock mode. */ if ((sc->sc_cap & BWI_CAP_CLKMODE) == 0) return (0); error = bwi_regwin_switch(sc, com, &old); if (error) return (error); if (clk_mode == BWI_CLOCK_MODE_FAST) bwi_power_on(sc, 0); /* Don't turn on PLL */ clk_ctrl = CSR_READ_4(sc, BWI_CLOCK_CTRL); clk_src = __SHIFTOUT(clk_ctrl, BWI_CLOCK_CTRL_CLKSRC); switch (clk_mode) { case BWI_CLOCK_MODE_FAST: clk_ctrl &= ~BWI_CLOCK_CTRL_SLOW; clk_ctrl |= BWI_CLOCK_CTRL_IGNPLL; break; case BWI_CLOCK_MODE_SLOW: clk_ctrl |= BWI_CLOCK_CTRL_SLOW; break; case BWI_CLOCK_MODE_DYN: clk_ctrl &= ~(BWI_CLOCK_CTRL_SLOW | BWI_CLOCK_CTRL_IGNPLL | BWI_CLOCK_CTRL_NODYN); if (clk_src != BWI_CLKSRC_CS_OSC) { clk_ctrl |= BWI_CLOCK_CTRL_NODYN; pwr_off = 1; } break; } CSR_WRITE_4(sc, BWI_CLOCK_CTRL, clk_ctrl); if (pwr_off) bwi_power_off(sc, 0); /* Leave PLL as it is */ return (bwi_regwin_switch(sc, old, NULL)); } int bwi_set_clock_delay(struct bwi_softc *sc) { struct bwi_regwin *old, *com; int error; com = &sc->sc_com_regwin; if (!BWI_REGWIN_EXIST(com)) return (0); error = bwi_regwin_switch(sc, com, &old); if (error) return (error); if (sc->sc_bbp_id == BWI_BBPID_BCM4321) { if (sc->sc_bbp_rev == 0) CSR_WRITE_4(sc, BWI_CONTROL, BWI_CONTROL_MAGIC0); else if (sc->sc_bbp_rev == 1) CSR_WRITE_4(sc, BWI_CONTROL, BWI_CONTROL_MAGIC1); } if (sc->sc_cap & BWI_CAP_CLKMODE) { if (com->rw_rev >= 10) CSR_FILT_SETBITS_4(sc, BWI_CLOCK_INFO, 0xffff, 0x40000); else { struct bwi_clock_freq freq; bwi_get_clock_freq(sc, &freq); CSR_WRITE_4(sc, BWI_PLL_ON_DELAY, howmany(freq.clkfreq_max * 150, 1000000)); CSR_WRITE_4(sc, BWI_FREQ_SEL_DELAY, howmany(freq.clkfreq_max * 15, 1000000)); } } return (bwi_regwin_switch(sc, old, NULL)); } int bwi_init(struct ifnet *ifp) { struct bwi_softc *sc = ifp->if_softc; bwi_init_statechg(sc, 1); return (0); } void bwi_init_statechg(struct bwi_softc *sc, int statechg) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; struct bwi_mac *mac; int error; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); error = bwi_stop(sc, statechg); if (error) { DPRINTF(1, "%s: can't stop\n", sc->sc_dev.dv_xname); return; } /* power on cardbus socket */ if (sc->sc_enable != NULL) (*sc->sc_enable)(sc); bwi_bbp_power_on(sc, BWI_CLOCK_MODE_FAST); /* TODO: 2 MAC */ mac = &sc->sc_mac[0]; error = bwi_regwin_switch(sc, &mac->mac_regwin, NULL); if (error) goto back; error = bwi_mac_init(mac); if (error) goto back; bwi_bbp_power_on(sc, BWI_CLOCK_MODE_DYN); IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); bwi_set_bssid(sc, bwi_zero_addr); /* Clear BSSID */ bwi_set_addr_filter(sc, BWI_ADDR_FILTER_MYADDR, ic->ic_myaddr); bwi_mac_reset_hwkeys(mac); if ((mac->mac_flags & BWI_MAC_F_HAS_TXSTATS) == 0) { int i; #define NRETRY 1000 /* * Drain any possible pending TX status */ for (i = 0; i < NRETRY; ++i) { if ((CSR_READ_4(sc, BWI_TXSTATUS_0) & BWI_TXSTATUS_0_MORE) == 0) break; CSR_READ_4(sc, BWI_TXSTATUS_1); } if (i == NRETRY) printf("%s: can't drain TX status\n", sc->sc_dev.dv_xname); #undef NRETRY } if (mac->mac_phy.phy_mode == IEEE80211_MODE_11G) bwi_mac_updateslot(mac, 1); /* Start MAC */ error = bwi_mac_start(mac); if (error) goto back; /* Enable intrs */ bwi_enable_intrs(sc, BWI_INIT_INTRS); ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; if (statechg) { if (ic->ic_opmode != IEEE80211_M_MONITOR) { ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); } else { ieee80211_new_state(ic, IEEE80211_S_RUN, -1); } } else { ieee80211_new_state(ic, ic->ic_state, -1); } back: if (error) bwi_stop(sc, 1); else bwi_start(ifp); } int bwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) { struct bwi_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; struct ifaddr *ifa; struct ifreq *ifr; int s, error = 0; uint8_t chan; s = splnet(); switch (cmd) { case SIOCSIFADDR: ifa = (struct ifaddr *)data; ifp->if_flags |= IFF_UP; #ifdef INET if (ifa->ifa_addr->sa_family == AF_INET) arp_ifinit(&ic->ic_ac, ifa); #endif /* FALLTHROUGH */ case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if ((ifp->if_flags & IFF_RUNNING) == 0) bwi_init(ifp); } else { if (ifp->if_flags & IFF_RUNNING) bwi_stop(sc, 1); } break; case SIOCADDMULTI: case SIOCDELMULTI: ifr = (struct ifreq *)data; error = (cmd == SIOCADDMULTI) ? ether_addmulti(ifr, &ic->ic_ac) : ether_delmulti(ifr, &ic->ic_ac); if (error == ENETRESET) error = 0; break; case SIOCS80211CHANNEL: /* allow fast channel switching in monitor mode */ error = ieee80211_ioctl(ifp, cmd, data); if (error == ENETRESET && ic->ic_opmode == IEEE80211_M_MONITOR) { if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) { ic->ic_bss->ni_chan = ic->ic_ibss_chan; chan = ieee80211_chan2ieee(ic, ic->ic_bss->ni_chan); bwi_set_chan(sc, chan); } error = 0; } break; default: error = ieee80211_ioctl(ifp, cmd, data); break; } if (error == ENETRESET) { if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) bwi_init(ifp); error = 0; } splx(s); return (error); } void bwi_start(struct ifnet *ifp) { struct bwi_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING]; int trans, idx; if ((ifp->if_flags & IFF_OACTIVE) || (ifp->if_flags & IFF_RUNNING) == 0) return; trans = 0; idx = tbd->tbd_idx; while (tbd->tbd_buf[idx].tb_mbuf == NULL) { struct ieee80211_frame *wh; struct ieee80211_node *ni; struct ieee80211_key *k; struct mbuf *m; int mgt_pkt = 0; IF_POLL(&ic->ic_mgtq, m); if (m != NULL) { IF_DEQUEUE(&ic->ic_mgtq, m); ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; m->m_pkthdr.rcvif = NULL; mgt_pkt = 1; } else { struct ether_header *eh; if (ic->ic_state != IEEE80211_S_RUN) break; IFQ_POLL(&ifp->if_snd, m); if (m == NULL) break; IFQ_DEQUEUE(&ifp->if_snd, m); if (m->m_len < sizeof(*eh)) { m = m_pullup(m, sizeof(*eh)); if (m == NULL) { ifp->if_oerrors++; continue; } } eh = mtod(m, struct ether_header *); ni = ieee80211_find_txnode(ic, eh->ether_dhost); if (ni == NULL) { m_freem(m); ifp->if_oerrors++; continue; } /* TODO: PS */ #if NBPFILTER > 0 if (ifp->if_bpf != NULL) bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT); #endif m = ieee80211_encap(ifp, m, &ni); if (m == NULL) continue; } #if NBPFILTER > 0 if (ic->ic_rawbpf != NULL) bpf_mtap(ic->ic_rawbpf, m, BPF_DIRECTION_OUT); #endif wh = mtod(m, struct ieee80211_frame *); if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { k = ieee80211_get_txkey(ic, wh, ni); if ((m = ieee80211_encrypt(ic, m, k)) == NULL) return; } wh = NULL; /* Catch any invalid use */ if (mgt_pkt) { ieee80211_release_node(ic, ni); ni = NULL; } if (bwi_encap(sc, idx, m, ni) != 0) { /* 'm' is freed in bwi_encap() if we reach here */ if (ni != NULL) ieee80211_release_node(ic, ni); ifp->if_oerrors++; continue; } trans = 1; tbd->tbd_used++; idx = (idx + 1) % BWI_TX_NDESC; if (tbd->tbd_used + BWI_TX_NSPRDESC >= BWI_TX_NDESC) { ifp->if_flags |= IFF_OACTIVE; break; } } tbd->tbd_idx = idx; if (trans) sc->sc_tx_timer = 5; ifp->if_timer = 1; } void bwi_watchdog(struct ifnet *ifp) { struct bwi_softc *sc = ifp->if_softc; ifp->if_timer = 0; if ((ifp->if_flags & IFF_RUNNING) == 0) return; if (sc->sc_tx_timer) { if (--sc->sc_tx_timer == 0) { printf("%s: watchdog timeout\n", sc->sc_dev.dv_xname); ifp->if_oerrors++; /* TODO */ } else ifp->if_timer = 1; } ieee80211_watchdog(ifp); } void bwi_newstate_begin(struct bwi_softc *sc, enum ieee80211_state nstate) { timeout_del(&sc->sc_scan_ch); timeout_del(&sc->sc_calib_ch); bwi_led_newstate(sc, nstate); if (nstate == IEEE80211_S_INIT) sc->sc_txpwrcb_type = BWI_TXPWR_INIT; } int bwi_stop(struct bwi_softc *sc, int state_chg) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; struct bwi_mac *mac; int i, error, pwr_off = 0; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); if (state_chg) ieee80211_new_state(ic, IEEE80211_S_INIT, -1); else bwi_newstate_begin(sc, IEEE80211_S_INIT); if (ifp->if_flags & IFF_RUNNING) { KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; bwi_disable_intrs(sc, BWI_ALL_INTRS); CSR_READ_4(sc, BWI_MAC_INTR_MASK); bwi_mac_stop(mac); } for (i = 0; i < sc->sc_nmac; ++i) { struct bwi_regwin *old_rw; mac = &sc->sc_mac[i]; if ((mac->mac_flags & BWI_MAC_F_INITED) == 0) continue; error = bwi_regwin_switch(sc, &mac->mac_regwin, &old_rw); if (error) continue; bwi_mac_shutdown(mac); pwr_off = 1; bwi_regwin_switch(sc, old_rw, NULL); } if (pwr_off) bwi_bbp_power_off(sc); sc->sc_tx_timer = 0; ifp->if_timer = 0; ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); /* power off cardbus socket */ if (sc->sc_disable) sc->sc_disable(sc); return (0); } int bwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) { struct bwi_softc *sc = ic->ic_if.if_softc; struct ieee80211_node *ni; int error; uint8_t chan; timeout_del(&sc->sc_amrr_ch); bwi_newstate_begin(sc, nstate); if (nstate == IEEE80211_S_INIT) goto back; chan = ieee80211_chan2ieee(ic, ic->ic_bss->ni_chan); error = bwi_set_chan(sc, chan); if (error) { printf("%s: can't set channel to %u\n", sc->sc_dev.dv_xname, ieee80211_chan2ieee(ic, ic->ic_des_chan)); return (error); } if (ic->ic_opmode == IEEE80211_M_MONITOR) { /* Nothing to do */ } else if (nstate == IEEE80211_S_RUN) { struct bwi_mac *mac; ni = ic->ic_bss; bwi_set_bssid(sc, ic->ic_bss->ni_bssid); KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; /* Initial TX power calibration */ bwi_mac_calibrate_txpower(mac, BWI_TXPWR_INIT); #ifdef notyet sc->sc_txpwrcb_type = BWI_TXPWR_FORCE; #else sc->sc_txpwrcb_type = BWI_TXPWR_CALIB; #endif if (ic->ic_opmode == IEEE80211_M_STA) { /* fake a join to init the tx rate */ bwi_newassoc(ic, ni, 1); } if (ic->ic_opmode != IEEE80211_M_MONITOR) { /* start automatic rate control timer */ if (ic->ic_fixed_rate == -1) timeout_add(&sc->sc_amrr_ch, hz / 2); } } else bwi_set_bssid(sc, bwi_zero_addr); back: error = sc->sc_newstate(ic, nstate, arg); if (nstate == IEEE80211_S_SCAN) { timeout_add(&sc->sc_scan_ch, (sc->sc_dwell_time * hz) / 1000); } else if (nstate == IEEE80211_S_RUN) { /* XXX 15 seconds */ timeout_add(&sc->sc_calib_ch, hz); } return (error); } int bwi_media_change(struct ifnet *ifp) { int error; error = ieee80211_media_change(ifp); if (error != ENETRESET) return (error); if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) bwi_init(ifp); return (0); } void bwi_iter_func(void *arg, struct ieee80211_node *ni) { struct bwi_softc *sc = arg; struct bwi_node *bn = (struct bwi_node *)ni; ieee80211_amrr_choose(&sc->sc_amrr, ni, &bn->amn); } void bwi_amrr_timeout(void *arg) { struct bwi_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; if (ic->ic_opmode == IEEE80211_M_STA) bwi_iter_func(sc, ic->ic_bss); else ieee80211_iterate_nodes(ic, bwi_iter_func, sc); timeout_add(&sc->sc_amrr_ch, hz / 2); } void bwi_newassoc(struct ieee80211com *ic, struct ieee80211_node *ni, int isnew) { struct bwi_softc *sc = ic->ic_if.if_softc; int i; DPRINTF(1, "%s: %s\n", sc->sc_dev.dv_xname, __func__); ieee80211_amrr_node_init(&sc->sc_amrr, &((struct bwi_node *)ni)->amn); /* set rate to some reasonable initial value */ for (i = ni->ni_rates.rs_nrates - 1; i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72; i--); ni->ni_txrate = i; } int bwi_dma_alloc(struct bwi_softc *sc) { int error, i, has_txstats; bus_size_t tx_ring_sz, rx_ring_sz, desc_sz = 0; uint32_t txrx_ctrl_step = 0; has_txstats = 0; for (i = 0; i < sc->sc_nmac; ++i) { if (sc->sc_mac[i].mac_flags & BWI_MAC_F_HAS_TXSTATS) { has_txstats = 1; break; } } switch (sc->sc_bus_space) { case BWI_BUS_SPACE_30BIT: case BWI_BUS_SPACE_32BIT: desc_sz = sizeof(struct bwi_desc32); txrx_ctrl_step = 0x20; sc->sc_init_tx_ring = bwi_init_tx_ring32; sc->sc_free_tx_ring = bwi_free_tx_ring32; sc->sc_init_rx_ring = bwi_init_rx_ring32; sc->sc_free_rx_ring = bwi_free_rx_ring32; sc->sc_setup_rxdesc = bwi_setup_rx_desc32; sc->sc_setup_txdesc = bwi_setup_tx_desc32; sc->sc_rxeof = bwi_rxeof32; sc->sc_start_tx = bwi_start_tx32; if (has_txstats) { sc->sc_init_txstats = bwi_init_txstats32; sc->sc_free_txstats = bwi_free_txstats32; sc->sc_txeof_status = bwi_txeof_status32; } break; case BWI_BUS_SPACE_64BIT: desc_sz = sizeof(struct bwi_desc64); txrx_ctrl_step = 0x40; sc->sc_init_tx_ring = bwi_init_tx_ring64; sc->sc_free_tx_ring = bwi_free_tx_ring64; sc->sc_init_rx_ring = bwi_init_rx_ring64; sc->sc_free_rx_ring = bwi_free_rx_ring64; sc->sc_setup_rxdesc = bwi_setup_rx_desc64; sc->sc_setup_txdesc = bwi_setup_tx_desc64; sc->sc_rxeof = bwi_rxeof64; sc->sc_start_tx = bwi_start_tx64; if (has_txstats) { sc->sc_init_txstats = bwi_init_txstats64; sc->sc_free_txstats = bwi_free_txstats64; sc->sc_txeof_status = bwi_txeof_status64; } break; } KASSERT(desc_sz != 0); KASSERT(txrx_ctrl_step != 0); tx_ring_sz = roundup(desc_sz * BWI_TX_NDESC, BWI_RING_ALIGN); rx_ring_sz = roundup(desc_sz * BWI_RX_NDESC, BWI_RING_ALIGN); #define TXRX_CTRL(idx) (BWI_TXRX_CTRL_BASE + (idx) * txrx_ctrl_step) /* * Create TX ring DMA stuffs */ for (i = 0; i < BWI_TX_NRING; ++i) { error = bus_dmamap_create(sc->sc_dmat, tx_ring_sz, 1, tx_ring_sz, 0, BUS_DMA_NOWAIT, &sc->sc_tx_rdata[i].rdata_dmap); if (error) { printf("%s: %dth TX ring DMA create failed\n", sc->sc_dev.dv_xname, i); return (error); } error = bwi_dma_ring_alloc(sc, &sc->sc_tx_rdata[i], tx_ring_sz, TXRX_CTRL(i)); if (error) { printf("%s: %dth TX ring DMA alloc failed\n", sc->sc_dev.dv_xname, i); return (error); } } /* * Create RX ring DMA stuffs */ error = bus_dmamap_create(sc->sc_dmat, rx_ring_sz, 1, rx_ring_sz, 0, BUS_DMA_NOWAIT, &sc->sc_rx_rdata.rdata_dmap); if (error) { printf("%s: RX ring DMA create failed\n", sc->sc_dev.dv_xname); return (error); } error = bwi_dma_ring_alloc(sc, &sc->sc_rx_rdata, rx_ring_sz, TXRX_CTRL(0)); if (error) { printf("%s: RX ring DMA alloc failed\n", sc->sc_dev.dv_xname); return (error); } if (has_txstats) { error = bwi_dma_txstats_alloc(sc, TXRX_CTRL(3), desc_sz); if (error) { printf("%s: TX stats DMA alloc failed\n", sc->sc_dev.dv_xname); return (error); } } #undef TXRX_CTRL return (bwi_dma_mbuf_create(sc)); } void bwi_dma_free(struct bwi_softc *sc) { int i; for (i = 0; i < BWI_TX_NRING; ++i) { struct bwi_ring_data *rd = &sc->sc_tx_rdata[i]; if (rd->rdata_desc != NULL) { bus_dmamap_unload(sc->sc_dmat, rd->rdata_dmap); bus_dmamem_free(sc->sc_dmat, &rd->rdata_seg, 1); } } struct bwi_ring_data *rd = &sc->sc_rx_rdata; if (rd->rdata_desc != NULL) { bus_dmamap_unload(sc->sc_dmat, rd->rdata_dmap); bus_dmamem_free(sc->sc_dmat, &rd->rdata_seg, 1); } bwi_dma_txstats_free(sc); bwi_dma_mbuf_destroy(sc, BWI_TX_NRING, 1); } int bwi_dma_ring_alloc(struct bwi_softc *sc, struct bwi_ring_data *rd, bus_size_t size, uint32_t txrx_ctrl) { int error, nsegs; error = bus_dmamem_alloc(sc->sc_dmat, size, BWI_ALIGN, 0, &rd->rdata_seg, 1, &nsegs, BUS_DMA_NOWAIT); if (error) { printf("%s: can't allocate DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamem_map(sc->sc_dmat, &rd->rdata_seg, nsegs, size, (caddr_t *)&rd->rdata_desc, BUS_DMA_NOWAIT); if (error) { printf("%s: can't map DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamap_load(sc->sc_dmat, rd->rdata_dmap, rd->rdata_desc, size, NULL, BUS_DMA_WAITOK); if (error) { printf("%s: can't load DMA mem\n", sc->sc_dev.dv_xname); bus_dmamem_free(sc->sc_dmat, &rd->rdata_seg, nsegs); rd->rdata_desc = NULL; return (error); } rd->rdata_paddr = rd->rdata_dmap->dm_segs[0].ds_addr; rd->rdata_txrx_ctrl = txrx_ctrl; return (0); } int bwi_dma_txstats_alloc(struct bwi_softc *sc, uint32_t ctrl_base, bus_size_t desc_sz) { struct bwi_txstats_data *st; bus_size_t dma_size; int error, nsegs; st = malloc(sizeof(*st), M_DEVBUF, M_WAITOK | M_ZERO); sc->sc_txstats = st; /* * Create TX stats descriptor DMA stuffs */ dma_size = roundup(desc_sz * BWI_TXSTATS_NDESC, BWI_RING_ALIGN); error = bus_dmamap_create(sc->sc_dmat, dma_size, 1, dma_size, 0, BUS_DMA_NOWAIT, &st->stats_ring_dmap); if (error) { printf("%s: can't create txstats ring DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamem_alloc(sc->sc_dmat, dma_size, BWI_RING_ALIGN, 0, &st->stats_ring_seg, 1, &nsegs, BUS_DMA_NOWAIT); if (error) { printf("%s: can't allocate txstats ring DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamem_map(sc->sc_dmat, &st->stats_ring_seg, nsegs, dma_size, (caddr_t *)&st->stats_ring, BUS_DMA_NOWAIT); if (error) { printf("%s: can't map txstats ring DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamap_load(sc->sc_dmat, st->stats_ring_dmap, st->stats_ring, dma_size, NULL, BUS_DMA_WAITOK); if (error) { printf("%s: can't load txstats ring DMA mem\n", sc->sc_dev.dv_xname); bus_dmamem_free(sc->sc_dmat, &st->stats_ring_seg, nsegs); return (error); } bzero(st->stats_ring, dma_size); st->stats_ring_paddr = st->stats_ring_dmap->dm_segs[0].ds_addr; /* * Create TX stats DMA stuffs */ dma_size = roundup(sizeof(struct bwi_txstats) * BWI_TXSTATS_NDESC, BWI_ALIGN); error = bus_dmamap_create(sc->sc_dmat, dma_size, 1, dma_size, 0, BUS_DMA_NOWAIT, &st->stats_dmap); if (error) { printf("%s: can't create txstats ring DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamem_alloc(sc->sc_dmat, dma_size, BWI_ALIGN, 0, &st->stats_seg, 1, &nsegs, BUS_DMA_NOWAIT); if (error) { printf("%s: can't allocate txstats DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamem_map(sc->sc_dmat, &st->stats_seg, nsegs, dma_size, (caddr_t *)&st->stats, BUS_DMA_NOWAIT); if (error) { printf("%s: can't map txstats DMA mem\n", sc->sc_dev.dv_xname); return (error); } error = bus_dmamap_load(sc->sc_dmat, st->stats_dmap, st->stats, dma_size, NULL, BUS_DMA_WAITOK); if (error) { printf("%s: can't load txstats DMA mem\n", sc->sc_dev.dv_xname); bus_dmamem_free(sc->sc_dmat, &st->stats_seg, nsegs); return (error); } bzero(st->stats, dma_size); st->stats_paddr = st->stats_dmap->dm_segs[0].ds_addr; st->stats_ctrl_base = ctrl_base; return (0); } void bwi_dma_txstats_free(struct bwi_softc *sc) { struct bwi_txstats_data *st; if (sc->sc_txstats == NULL) return; st = sc->sc_txstats; bus_dmamap_unload(sc->sc_dmat, st->stats_ring_dmap); bus_dmamem_free(sc->sc_dmat, &st->stats_ring_seg, 1); bus_dmamap_unload(sc->sc_dmat, st->stats_dmap); bus_dmamem_free(sc->sc_dmat, &st->stats_seg, 1); free(st, M_DEVBUF); } int bwi_dma_mbuf_create(struct bwi_softc *sc) { struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; int i, j, k, ntx, error; ntx = 0; /* * Create TX mbuf DMA map */ for (i = 0; i < BWI_TX_NRING; ++i) { struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[i]; for (j = 0; j < BWI_TX_NDESC; ++j) { error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 0, BUS_DMA_NOWAIT, &tbd->tbd_buf[j].tb_dmap); if (error) { printf( "%s: can't create %dth tbd, %dth DMA map\n", sc->sc_dev.dv_xname, i, j); ntx = i; for (k = 0; k < j; ++k) { bus_dmamap_destroy(sc->sc_dmat, tbd->tbd_buf[k].tb_dmap); } goto fail; } } } ntx = BWI_TX_NRING; /* * Create RX mbuf DMA map and a spare DMA map */ error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 0, BUS_DMA_NOWAIT, &rbd->rbd_tmp_dmap); if (error) { printf("%s: can't create spare RX buf DMA map\n", sc->sc_dev.dv_xname); goto fail; } for (j = 0; j < BWI_RX_NDESC; ++j) { error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 0, BUS_DMA_NOWAIT, &rbd->rbd_buf[j].rb_dmap); if (error) { printf("%s: can't create %dth RX buf DMA map\n", sc->sc_dev.dv_xname, j); for (k = 0; k < j; ++k) { bus_dmamap_destroy(sc->sc_dmat, rbd->rbd_buf[j].rb_dmap); } bus_dmamap_destroy(sc->sc_dmat, rbd->rbd_tmp_dmap); goto fail; } } return 0; fail: bwi_dma_mbuf_destroy(sc, ntx, 0); return (error); } void bwi_dma_mbuf_destroy(struct bwi_softc *sc, int ntx, int nrx) { struct ieee80211com *ic = &sc->sc_ic; int i, j; for (i = 0; i < ntx; ++i) { struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[i]; for (j = 0; j < BWI_TX_NDESC; ++j) { struct bwi_txbuf *tb = &tbd->tbd_buf[j]; if (tb->tb_mbuf != NULL) { bus_dmamap_unload(sc->sc_dmat, tb->tb_dmap); m_freem(tb->tb_mbuf); } if (tb->tb_ni != NULL) ieee80211_release_node(ic, tb->tb_ni); bus_dmamap_destroy(sc->sc_dmat, tb->tb_dmap); } } if (nrx) { struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; bus_dmamap_destroy(sc->sc_dmat, rbd->rbd_tmp_dmap); for (j = 0; j < BWI_RX_NDESC; ++j) { struct bwi_rxbuf *rb = &rbd->rbd_buf[j]; if (rb->rb_mbuf != NULL) { bus_dmamap_unload(sc->sc_dmat, rb->rb_dmap); m_freem(rb->rb_mbuf); } bus_dmamap_destroy(sc->sc_dmat, rb->rb_dmap); } } } void bwi_enable_intrs(struct bwi_softc *sc, uint32_t enable_intrs) { CSR_SETBITS_4(sc, BWI_MAC_INTR_MASK, enable_intrs); } void bwi_disable_intrs(struct bwi_softc *sc, uint32_t disable_intrs) { CSR_CLRBITS_4(sc, BWI_MAC_INTR_MASK, disable_intrs); } int bwi_init_tx_ring32(struct bwi_softc *sc, int ring_idx) { struct bwi_ring_data *rd; struct bwi_txbuf_data *tbd; uint32_t val, addr_hi, addr_lo; KASSERT(ring_idx < BWI_TX_NRING); rd = &sc->sc_tx_rdata[ring_idx]; tbd = &sc->sc_tx_bdata[ring_idx]; tbd->tbd_idx = 0; tbd->tbd_used = 0; bzero(rd->rdata_desc, sizeof(struct bwi_desc32) * BWI_TX_NDESC); bus_dmamap_sync(sc->sc_dmat, rd->rdata_dmap, 0, rd->rdata_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); addr_lo = __SHIFTOUT(rd->rdata_paddr, BWI_TXRX32_RINGINFO_ADDR_MASK); addr_hi = __SHIFTOUT(rd->rdata_paddr, BWI_TXRX32_RINGINFO_FUNC_MASK); val = __SHIFTIN(addr_lo, BWI_TXRX32_RINGINFO_ADDR_MASK) | __SHIFTIN(BWI_TXRX32_RINGINFO_FUNC_TXRX, BWI_TXRX32_RINGINFO_FUNC_MASK); CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_RINGINFO, val); val = __SHIFTIN(addr_hi, BWI_TXRX32_CTRL_ADDRHI_MASK) | BWI_TXRX32_CTRL_ENABLE; CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_CTRL, val); return (0); } void bwi_init_rxdesc_ring32(struct bwi_softc *sc, uint32_t ctrl_base, bus_addr_t paddr, int hdr_size, int ndesc) { uint32_t val, addr_hi, addr_lo; addr_lo = __SHIFTOUT(paddr, BWI_TXRX32_RINGINFO_ADDR_MASK); addr_hi = __SHIFTOUT(paddr, BWI_TXRX32_RINGINFO_FUNC_MASK); val = __SHIFTIN(addr_lo, BWI_TXRX32_RINGINFO_ADDR_MASK) | __SHIFTIN(BWI_TXRX32_RINGINFO_FUNC_TXRX, BWI_TXRX32_RINGINFO_FUNC_MASK); CSR_WRITE_4(sc, ctrl_base + BWI_RX32_RINGINFO, val); val = __SHIFTIN(hdr_size, BWI_RX32_CTRL_HDRSZ_MASK) | __SHIFTIN(addr_hi, BWI_TXRX32_CTRL_ADDRHI_MASK) | BWI_TXRX32_CTRL_ENABLE; CSR_WRITE_4(sc, ctrl_base + BWI_RX32_CTRL, val); CSR_WRITE_4(sc, ctrl_base + BWI_RX32_INDEX, (ndesc - 1) * sizeof(struct bwi_desc32)); } int bwi_init_rx_ring32(struct bwi_softc *sc) { struct bwi_ring_data *rd = &sc->sc_rx_rdata; int i, error; sc->sc_rx_bdata.rbd_idx = 0; for (i = 0; i < BWI_RX_NDESC; ++i) { error = bwi_newbuf(sc, i, 1); if (error) { printf("%s: can't allocate %dth RX buffer\n", sc->sc_dev.dv_xname, i); return (error); } } bus_dmamap_sync(sc->sc_dmat, rd->rdata_dmap, 0, rd->rdata_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); bwi_init_rxdesc_ring32(sc, rd->rdata_txrx_ctrl, rd->rdata_paddr, sizeof(struct bwi_rxbuf_hdr), BWI_RX_NDESC); return (0); } int bwi_init_txstats32(struct bwi_softc *sc) { struct bwi_txstats_data *st = sc->sc_txstats; bus_addr_t stats_paddr; int i; bzero(st->stats, BWI_TXSTATS_NDESC * sizeof(struct bwi_txstats)); bus_dmamap_sync(sc->sc_dmat, st->stats_dmap, 0, st->stats_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); st->stats_idx = 0; stats_paddr = st->stats_paddr; for (i = 0; i < BWI_TXSTATS_NDESC; ++i) { bwi_setup_desc32(sc, st->stats_ring, BWI_TXSTATS_NDESC, i, stats_paddr, sizeof(struct bwi_txstats), 0); stats_paddr += sizeof(struct bwi_txstats); } bus_dmamap_sync(sc->sc_dmat, st->stats_ring_dmap, 0, st->stats_ring_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); bwi_init_rxdesc_ring32(sc, st->stats_ctrl_base, st->stats_ring_paddr, 0, BWI_TXSTATS_NDESC); return (0); } void bwi_setup_rx_desc32(struct bwi_softc *sc, int buf_idx, bus_addr_t paddr, int buf_len) { struct bwi_ring_data *rd = &sc->sc_rx_rdata; KASSERT(buf_idx < BWI_RX_NDESC); bwi_setup_desc32(sc, rd->rdata_desc, BWI_RX_NDESC, buf_idx, paddr, buf_len, 0); } void bwi_setup_tx_desc32(struct bwi_softc *sc, struct bwi_ring_data *rd, int buf_idx, bus_addr_t paddr, int buf_len) { KASSERT(buf_idx < BWI_TX_NDESC); bwi_setup_desc32(sc, rd->rdata_desc, BWI_TX_NDESC, buf_idx, paddr, buf_len, 1); } int bwi_init_tx_ring64(struct bwi_softc *sc, int ring_idx) { /* TODO: 64 */ return (EOPNOTSUPP); } int bwi_init_rx_ring64(struct bwi_softc *sc) { /* TODO: 64 */ return (EOPNOTSUPP); } int bwi_init_txstats64(struct bwi_softc *sc) { /* TODO: 64 */ return (EOPNOTSUPP); } void bwi_setup_rx_desc64(struct bwi_softc *sc, int buf_idx, bus_addr_t paddr, int buf_len) { /* TODO: 64 */ } void bwi_setup_tx_desc64(struct bwi_softc *sc, struct bwi_ring_data *rd, int buf_idx, bus_addr_t paddr, int buf_len) { /* TODO: 64 */ } int bwi_newbuf(struct bwi_softc *sc, int buf_idx, int init) { struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; struct bwi_rxbuf *rxbuf = &rbd->rbd_buf[buf_idx]; struct bwi_rxbuf_hdr *hdr; bus_dmamap_t map; bus_addr_t paddr; struct mbuf *m; int error; KASSERT(buf_idx < BWI_RX_NDESC); MGETHDR(m, init ? M_WAITOK : M_DONTWAIT, MT_DATA); if (m == NULL) return (ENOBUFS); MCLGET(m, init ? M_WAITOK : M_DONTWAIT); if (m == NULL) { error = ENOBUFS; /* * If the NIC is up and running, we need to: * - Clear RX buffer's header. * - Restore RX descriptor settings. */ if (init) return error; else goto back; } m->m_len = m->m_pkthdr.len = MCLBYTES; /* * Try to load RX buf into temporary DMA map */ error = bus_dmamap_load_mbuf(sc->sc_dmat, rbd->rbd_tmp_dmap, m, init ? BUS_DMA_WAITOK : BUS_DMA_NOWAIT); if (error) { m_freem(m); /* * See the comment above */ if (init) return error; else goto back; } if (!init) bus_dmamap_unload(sc->sc_dmat, rxbuf->rb_dmap); rxbuf->rb_mbuf = m; /* * Swap RX buf's DMA map with the loaded temporary one */ map = rxbuf->rb_dmap; rxbuf->rb_dmap = rbd->rbd_tmp_dmap; rbd->rbd_tmp_dmap = map; paddr = rxbuf->rb_dmap->dm_segs[0].ds_addr; rxbuf->rb_paddr = paddr; back: /* * Clear RX buf header */ hdr = mtod(rxbuf->rb_mbuf, struct bwi_rxbuf_hdr *); bzero(hdr, sizeof(*hdr)); bus_dmamap_sync(sc->sc_dmat, rxbuf->rb_dmap, 0, rxbuf->rb_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); /* * Setup RX buf descriptor */ sc->sc_setup_rxdesc(sc, buf_idx, rxbuf->rb_paddr, rxbuf->rb_mbuf->m_len - sizeof(*hdr)); return error; } void bwi_set_addr_filter(struct bwi_softc *sc, uint16_t addr_ofs, const uint8_t *addr) { int i; CSR_WRITE_2(sc, BWI_ADDR_FILTER_CTRL, BWI_ADDR_FILTER_CTRL_SET | addr_ofs); for (i = 0; i < (IEEE80211_ADDR_LEN / 2); ++i) { uint16_t addr_val; addr_val = (uint16_t)addr[i * 2] | (((uint16_t)addr[(i * 2) + 1]) << 8); CSR_WRITE_2(sc, BWI_ADDR_FILTER_DATA, addr_val); } } int bwi_set_chan(struct bwi_softc *sc, uint8_t chan) { struct bwi_mac *mac; KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; bwi_rf_set_chan(mac, chan, 0); return (0); } void bwi_next_scan(void *xsc) { struct bwi_softc *sc = xsc; struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; int s; s = splnet(); if (ic->ic_state == IEEE80211_S_SCAN) ieee80211_next_scan(ifp); splx(s); } int bwi_rxeof(struct bwi_softc *sc, int end_idx) { struct bwi_ring_data *rd = &sc->sc_rx_rdata; struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; int idx, rx_data = 0; idx = rbd->rbd_idx; while (idx != end_idx) { struct bwi_rxbuf *rb = &rbd->rbd_buf[idx]; struct bwi_rxbuf_hdr *hdr; struct ieee80211_frame *wh; struct ieee80211_rxinfo rxi; struct ieee80211_node *ni; struct mbuf *m; void *plcp; uint16_t flags2; int buflen, wh_ofs, hdr_extra, rssi, type, rate; m = rb->rb_mbuf; bus_dmamap_sync(sc->sc_dmat, rb->rb_dmap, 0, rb->rb_dmap->dm_mapsize, BUS_DMASYNC_POSTREAD); if (bwi_newbuf(sc, idx, 0)) { ifp->if_ierrors++; goto next; } hdr = mtod(m, struct bwi_rxbuf_hdr *); flags2 = letoh16(hdr->rxh_flags2); hdr_extra = 0; if (flags2 & BWI_RXH_F2_TYPE2FRAME) hdr_extra = 2; wh_ofs = hdr_extra + 6; buflen = letoh16(hdr->rxh_buflen); if (buflen <= wh_ofs) { printf("%s: zero length data, hdr_extra %d\n", sc->sc_dev.dv_xname, hdr_extra); ifp->if_ierrors++; m_freem(m); goto next; } plcp = ((uint8_t *)(hdr + 1) + hdr_extra); rssi = bwi_calc_rssi(sc, hdr); m->m_pkthdr.rcvif = ifp; m->m_len = m->m_pkthdr.len = buflen + sizeof(*hdr); m_adj(m, sizeof(*hdr) + wh_ofs); if (htole16(hdr->rxh_flags1) & BWI_RXH_F1_OFDM) rate = bwi_ofdm_plcp2rate(plcp); else rate = bwi_ds_plcp2rate(plcp); #if NBPFILTER > 0 /* RX radio tap */ if (sc->sc_drvbpf != NULL) { struct mbuf mb; struct bwi_rx_radiotap_hdr *tap = &sc->sc_rxtap; tap->wr_tsf = hdr->rxh_tsf; tap->wr_flags = 0; tap->wr_rate = rate; tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); tap->wr_antsignal = rssi; tap->wr_antnoise = BWI_NOISE_FLOOR; mb.m_data = (caddr_t)tap; mb.m_len = sc->sc_rxtap_len; mb.m_next = m; mb.m_nextpkt = NULL; mb.m_type = 0; mb.m_flags = 0; bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN); } #endif m_adj(m, -IEEE80211_CRC_LEN); wh = mtod(m, struct ieee80211_frame *); ni = ieee80211_find_rxnode(ic, wh); type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; rxi.rxi_rssi = hdr->rxh_rssi; rxi.rxi_tstamp = letoh16(hdr->rxh_tsf); ieee80211_input(ifp, m, ni, &rxi); ieee80211_release_node(ic, ni); if (type == IEEE80211_FC0_TYPE_DATA) { rx_data = 1; sc->sc_rx_rate = rate; } next: idx = (idx + 1) % BWI_RX_NDESC; } rbd->rbd_idx = idx; bus_dmamap_sync(sc->sc_dmat, rd->rdata_dmap, 0, rd->rdata_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); return (rx_data); } int bwi_rxeof32(struct bwi_softc *sc) { uint32_t val, rx_ctrl; int end_idx, rx_data; rx_ctrl = sc->sc_rx_rdata.rdata_txrx_ctrl; val = CSR_READ_4(sc, rx_ctrl + BWI_RX32_STATUS); end_idx = __SHIFTOUT(val, BWI_RX32_STATUS_INDEX_MASK) / sizeof(struct bwi_desc32); rx_data = bwi_rxeof(sc, end_idx); CSR_WRITE_4(sc, rx_ctrl + BWI_RX32_INDEX, end_idx * sizeof(struct bwi_desc32)); return (rx_data); } int bwi_rxeof64(struct bwi_softc *sc) { /* TODO: 64 */ return (0); } void bwi_reset_rx_ring32(struct bwi_softc *sc, uint32_t rx_ctrl) { int i; CSR_WRITE_4(sc, rx_ctrl + BWI_RX32_CTRL, 0); #define NRETRY 10 for (i = 0; i < NRETRY; ++i) { uint32_t status; status = CSR_READ_4(sc, rx_ctrl + BWI_RX32_STATUS); if (__SHIFTOUT(status, BWI_RX32_STATUS_STATE_MASK) == BWI_RX32_STATUS_STATE_DISABLED) break; DELAY(1000); } if (i == NRETRY) printf("%s: reset rx ring timedout\n", sc->sc_dev.dv_xname); #undef NRETRY CSR_WRITE_4(sc, rx_ctrl + BWI_RX32_RINGINFO, 0); } void bwi_free_txstats32(struct bwi_softc *sc) { bwi_reset_rx_ring32(sc, sc->sc_txstats->stats_ctrl_base); } void bwi_free_rx_ring32(struct bwi_softc *sc) { struct bwi_ring_data *rd = &sc->sc_rx_rdata; struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; int i; bwi_reset_rx_ring32(sc, rd->rdata_txrx_ctrl); for (i = 0; i < BWI_RX_NDESC; ++i) { struct bwi_rxbuf *rb = &rbd->rbd_buf[i]; if (rb->rb_mbuf != NULL) { bus_dmamap_unload(sc->sc_dmat, rb->rb_dmap); m_freem(rb->rb_mbuf); rb->rb_mbuf = NULL; } } } void bwi_free_tx_ring32(struct bwi_softc *sc, int ring_idx) { struct ieee80211com *ic = &sc->sc_ic; struct bwi_ring_data *rd; struct bwi_txbuf_data *tbd; uint32_t state, val; int i; KASSERT(ring_idx < BWI_TX_NRING); rd = &sc->sc_tx_rdata[ring_idx]; tbd = &sc->sc_tx_bdata[ring_idx]; #define NRETRY 10 for (i = 0; i < NRETRY; ++i) { val = CSR_READ_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_STATUS); state = __SHIFTOUT(val, BWI_TX32_STATUS_STATE_MASK); if (state == BWI_TX32_STATUS_STATE_DISABLED || state == BWI_TX32_STATUS_STATE_IDLE || state == BWI_TX32_STATUS_STATE_STOPPED) break; DELAY(1000); } if (i == NRETRY) { printf("%s: wait for TX ring(%d) stable timed out\n", sc->sc_dev.dv_xname, ring_idx); } CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_CTRL, 0); for (i = 0; i < NRETRY; ++i) { val = CSR_READ_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_STATUS); state = __SHIFTOUT(val, BWI_TX32_STATUS_STATE_MASK); if (state == BWI_TX32_STATUS_STATE_DISABLED) break; DELAY(1000); } if (i == NRETRY) printf("%s: reset TX ring (%d) timed out\n", sc->sc_dev.dv_xname, ring_idx); #undef NRETRY DELAY(1000); CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_RINGINFO, 0); for (i = 0; i < BWI_TX_NDESC; ++i) { struct bwi_txbuf *tb = &tbd->tbd_buf[i]; if (tb->tb_mbuf != NULL) { bus_dmamap_unload(sc->sc_dmat, tb->tb_dmap); m_freem(tb->tb_mbuf); tb->tb_mbuf = NULL; } if (tb->tb_ni != NULL) { ieee80211_release_node(ic, tb->tb_ni); tb->tb_ni = NULL; } } } void bwi_free_txstats64(struct bwi_softc *sc) { /* TODO: 64 */ } void bwi_free_rx_ring64(struct bwi_softc *sc) { /* TODO: 64 */ } void bwi_free_tx_ring64(struct bwi_softc *sc, int ring_idx) { /* TODO: 64 */ } uint8_t bwi_ofdm_plcp2rate(uint32_t *plcp0) { uint32_t plcp; uint8_t plcp_rate; plcp = letoh32(*plcp0); plcp_rate = __SHIFTOUT(plcp, IEEE80211_OFDM_PLCP_RATE_MASK); return (ieee80211_plcp2rate(plcp_rate, IEEE80211_MODE_11G)); } uint8_t bwi_ds_plcp2rate(struct ieee80211_ds_plcp_hdr *hdr) { return (ieee80211_plcp2rate(hdr->i_signal, IEEE80211_MODE_11B)); } void bwi_ofdm_plcp_header(uint32_t *plcp0, int pkt_len, uint8_t rate) { uint32_t plcp; plcp = __SHIFTIN(ieee80211_rate2plcp(rate, IEEE80211_MODE_11G), IEEE80211_OFDM_PLCP_RATE_MASK) | __SHIFTIN(pkt_len, IEEE80211_OFDM_PLCP_LEN_MASK); *plcp0 = htole32(plcp); } void bwi_ds_plcp_header(struct ieee80211_ds_plcp_hdr *plcp, int pkt_len, uint8_t rate) { int len, service, pkt_bitlen; pkt_bitlen = pkt_len * NBBY; len = howmany(pkt_bitlen * 2, rate); service = IEEE80211_DS_PLCP_SERVICE_LOCKED; if (rate == (11 * 2)) { int pkt_bitlen1; /* * PLCP service field needs to be adjusted, * if TX rate is 11Mbytes/s */ pkt_bitlen1 = len * 11; if (pkt_bitlen1 - pkt_bitlen >= NBBY) service |= IEEE80211_DS_PLCP_SERVICE_LENEXT7; } plcp->i_signal = ieee80211_rate2plcp(rate, IEEE80211_MODE_11B); plcp->i_service = service; plcp->i_length = htole16(len); /* NOTE: do NOT touch i_crc */ } void bwi_plcp_header(void *plcp, int pkt_len, uint8_t rate) { enum bwi_modtype modtype; /* * Assume caller has zeroed 'plcp' */ modtype = bwi_rate2modtype(rate); if (modtype == IEEE80211_MODTYPE_OFDM) bwi_ofdm_plcp_header(plcp, pkt_len, rate); else if (modtype == IEEE80211_MODTYPE_DS) bwi_ds_plcp_header(plcp, pkt_len, rate); else panic("unsupport modulation type %u\n", modtype); } enum bwi_modtype bwi_rate2modtype(uint8_t rate) { rate &= IEEE80211_RATE_VAL; if (rate == 44) return IEEE80211_MODTYPE_PBCC; else if (rate == 22 || rate < 12) return IEEE80211_MODTYPE_DS; else return IEEE80211_MODTYPE_OFDM; } uint8_t bwi_ack_rate(struct ieee80211_node *ni, uint8_t rate) { const struct ieee80211_rateset *rs = &ni->ni_rates; uint8_t ack_rate = 0; enum bwi_modtype modtype; int i; rate &= IEEE80211_RATE_VAL; modtype = bwi_rate2modtype(rate); for (i = 0; i < rs->rs_nrates; ++i) { uint8_t rate1 = rs->rs_rates[i] & IEEE80211_RATE_VAL; if (rate1 > rate) { if (ack_rate != 0) return ack_rate; else break; } if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) && bwi_rate2modtype(rate1) == modtype) ack_rate = rate1; } switch (rate) { /* CCK */ case 2: case 4: case 11: case 22: ack_rate = rate; break; /* PBCC */ case 44: ack_rate = 22; break; /* OFDM */ case 12: case 18: ack_rate = 12; break; case 24: case 36: ack_rate = 24; break; case 48: case 72: case 96: case 108: ack_rate = 48; break; default: panic("unsupported rate %d\n", rate); } return ack_rate; } #define IEEE80211_OFDM_TXTIME(kbps, frmlen) \ (IEEE80211_OFDM_PREAMBLE_TIME + \ IEEE80211_OFDM_SIGNAL_TIME + \ (IEEE80211_OFDM_NSYMS((kbps), (frmlen)) * IEEE80211_OFDM_SYM_TIME)) #define IEEE80211_OFDM_SYM_TIME 4 #define IEEE80211_OFDM_PREAMBLE_TIME 16 #define IEEE80211_OFDM_SIGNAL_EXT_TIME 6 #define IEEE80211_OFDM_SIGNAL_TIME 4 #define IEEE80211_OFDM_PLCP_SERVICE_NBITS 16 #define IEEE80211_OFDM_TAIL_NBITS 6 #define IEEE80211_OFDM_NBITS(frmlen) \ (IEEE80211_OFDM_PLCP_SERVICE_NBITS + \ ((frmlen) * NBBY) + \ IEEE80211_OFDM_TAIL_NBITS) #define IEEE80211_OFDM_NBITS_PER_SYM(kbps) \ (((kbps) * IEEE80211_OFDM_SYM_TIME) / 1000) #define IEEE80211_OFDM_NSYMS(kbps, frmlen) \ howmany(IEEE80211_OFDM_NBITS((frmlen)), \ IEEE80211_OFDM_NBITS_PER_SYM((kbps))) #define IEEE80211_CCK_TXTIME(kbps, frmlen) \ (((IEEE80211_CCK_NBITS((frmlen)) * 1000) + (kbps) - 1) / (kbps)) #define IEEE80211_CCK_PREAMBLE_LEN 144 #define IEEE80211_CCK_PLCP_HDR_TIME 48 #define IEEE80211_CCK_SHPREAMBLE_LEN 72 #define IEEE80211_CCK_SHPLCP_HDR_TIME 24 #define IEEE80211_CCK_NBITS(frmlen) ((frmlen) * NBBY) uint16_t bwi_txtime(struct ieee80211com *ic, struct ieee80211_node *ni, uint len, uint8_t rs_rate, uint32_t flags) { enum bwi_modtype modtype; uint16_t txtime; int rate; rs_rate &= IEEE80211_RATE_VAL; rate = rs_rate * 500; /* ieee80211 rate -> kbps */ modtype = bwi_rate2modtype(rs_rate); if (modtype == IEEE80211_MODTYPE_OFDM) { /* * IEEE Std 802.11a-1999, page 37, equation (29) * IEEE Std 802.11g-2003, page 44, equation (42) */ txtime = IEEE80211_OFDM_TXTIME(rate, len); if (ic->ic_curmode == IEEE80211_MODE_11G) txtime += IEEE80211_OFDM_SIGNAL_EXT_TIME; } else { /* * IEEE Std 802.11b-1999, page 28, subclause 18.3.4 * IEEE Std 802.11g-2003, page 45, equation (43) */ if (modtype == IEEE80211_MODTYPE_PBCC) ++len; txtime = IEEE80211_CCK_TXTIME(rate, len); /* * Short preamble is not applicable for DS 1Mbits/s */ if (rs_rate != 2 && (flags & IEEE80211_F_SHPREAMBLE)) { txtime += IEEE80211_CCK_SHPREAMBLE_LEN + IEEE80211_CCK_SHPLCP_HDR_TIME; } else { txtime += IEEE80211_CCK_PREAMBLE_LEN + IEEE80211_CCK_PLCP_HDR_TIME; } } return txtime; } int bwi_encap(struct bwi_softc *sc, int idx, struct mbuf *m, struct ieee80211_node *ni) { DPRINTF(2, "%s: %s\n", sc->sc_dev.dv_xname, __func__); struct ieee80211com *ic = &sc->sc_ic; struct bwi_ring_data *rd = &sc->sc_tx_rdata[BWI_TX_DATA_RING]; struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING]; struct bwi_txbuf *tb = &tbd->tbd_buf[idx]; struct bwi_mac *mac; struct bwi_txbuf_hdr *hdr; struct ieee80211_frame *wh; uint8_t rate; uint32_t mac_ctrl; uint16_t phy_ctrl; bus_addr_t paddr; int pkt_len, error; #if 0 const uint8_t *p; int i; #endif KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; wh = mtod(m, struct ieee80211_frame *); /* Get 802.11 frame len before prepending TX header */ pkt_len = m->m_pkthdr.len + IEEE80211_CRC_LEN; /* * Find TX rate */ bzero(tb->tb_rate_idx, sizeof(tb->tb_rate_idx)); if (ni != NULL) { if (ic->ic_fixed_rate != -1) { rate = ic->ic_sup_rates[ic->ic_curmode]. rs_rates[ic->ic_fixed_rate]; } else { /* AMRR rate control */ rate = ni->ni_rates.rs_rates[ni->ni_txrate]; } } else { /* Fixed at 1Mbytes/s for mgt frames */ rate = (1 * 2); } rate &= IEEE80211_RATE_VAL; if (IEEE80211_IS_MULTICAST(wh->i_addr1)) rate = (1 * 2); if (rate == 0) { printf("%s: invalid rate %u or fallback rate", sc->sc_dev.dv_xname, rate); rate = (1 * 2); /* Force 1Mbytes/s */ } sc->sc_tx_rate = rate; #if NBPFILTER > 0 /* TX radio tap */ if (sc->sc_drvbpf != NULL) { struct mbuf mb; struct bwi_tx_radiotap_hdr *tap = &sc->sc_txtap; tap->wt_flags = 0; tap->wt_rate = rate; tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); mb.m_data = (caddr_t)tap; mb.m_len = sc->sc_txtap_len; mb.m_next = m; mb.m_nextpkt = NULL; mb.m_type = 0; mb.m_flags = 0; bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_OUT); } #endif /* * Setup the embedded TX header */ M_PREPEND(m, sizeof(*hdr), M_DONTWAIT); if (m == NULL) { printf("%s: prepend TX header failed\n", sc->sc_dev.dv_xname); return (ENOBUFS); } hdr = mtod(m, struct bwi_txbuf_hdr *); bzero(hdr, sizeof(*hdr)); bcopy(wh->i_fc, hdr->txh_fc, sizeof(hdr->txh_fc)); bcopy(wh->i_addr1, hdr->txh_addr1, sizeof(hdr->txh_addr1)); if (ni != NULL && !IEEE80211_IS_MULTICAST(wh->i_addr1)) { uint16_t dur; uint8_t ack_rate; ack_rate = bwi_ack_rate(ni, rate); dur = bwi_txtime(ic, ni, sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN, ack_rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE); hdr->txh_fb_duration = htole16(dur); } hdr->txh_id = __SHIFTIN(BWI_TX_DATA_RING, BWI_TXH_ID_RING_MASK) | __SHIFTIN(idx, BWI_TXH_ID_IDX_MASK); bwi_plcp_header(hdr->txh_plcp, pkt_len, rate); bwi_plcp_header(hdr->txh_fb_plcp, pkt_len, rate); phy_ctrl = __SHIFTIN(mac->mac_rf.rf_ant_mode, BWI_TXH_PHY_C_ANTMODE_MASK); if (bwi_rate2modtype(rate) == IEEE80211_MODTYPE_OFDM) phy_ctrl |= BWI_TXH_PHY_C_OFDM; else if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && rate != (2 * 1)) phy_ctrl |= BWI_TXH_PHY_C_SHPREAMBLE; mac_ctrl = BWI_TXH_MAC_C_HWSEQ | BWI_TXH_MAC_C_FIRST_FRAG; if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) mac_ctrl |= BWI_TXH_MAC_C_ACK; if (bwi_rate2modtype(rate) == IEEE80211_MODTYPE_OFDM) mac_ctrl |= BWI_TXH_MAC_C_FB_OFDM; hdr->txh_mac_ctrl = htole32(mac_ctrl); hdr->txh_phy_ctrl = htole16(phy_ctrl); /* Catch any further usage */ hdr = NULL; wh = NULL; /* DMA load */ error = bus_dmamap_load_mbuf(sc->sc_dmat, tb->tb_dmap, m, BUS_DMA_NOWAIT); if (error && error != EFBIG) { printf("%s: can't load TX buffer (1) %d\n", sc->sc_dev.dv_xname, error); goto back; } if (error) { /* error == EFBIG */ struct mbuf *m_new; error = 0; MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) { m_freem(m); error = ENOBUFS; printf("%s: can't defrag TX buffer\n", sc->sc_dev.dv_xname); goto back; } M_DUP_PKTHDR(m_new, m); if (m->m_pkthdr.len > MHLEN) { MCLGET(m_new, M_DONTWAIT); if (!(m_new->m_flags & M_EXT)) { m_freem(m); m_freem(m_new); error = ENOBUFS; } } if (error) { printf("%s: can't defrag TX buffer\n", sc->sc_dev.dv_xname); goto back; } m_copydata(m, 0, m->m_pkthdr.len, mtod(m_new, caddr_t)); m_freem(m); m_new->m_len = m_new->m_pkthdr.len; m = m_new; error = bus_dmamap_load_mbuf(sc->sc_dmat, tb->tb_dmap, m, BUS_DMA_NOWAIT); if (error) { printf("%s: can't load TX buffer (2) %d\n", sc->sc_dev.dv_xname, error); goto back; } } error = 0; bus_dmamap_sync(sc->sc_dmat, tb->tb_dmap, 0, tb->tb_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); tb->tb_mbuf = m; tb->tb_ni = ni; #if 0 p = mtod(m, const uint8_t *); for (i = 0; i < m->m_pkthdr.len; ++i) { if (i != 0 && i % 8 == 0) printf("\n"); printf("%02x ", p[i]); } printf("\n"); DPRINTF(1, "%s: idx %d, pkt_len %d, buflen %d\n", sc->sc_dev.dv_xname, idx, pkt_len, m->m_pkthdr.len); #endif /* Setup TX descriptor */ paddr = tb->tb_dmap->dm_segs[0].ds_addr; sc->sc_setup_txdesc(sc, rd, idx, paddr, m->m_pkthdr.len); bus_dmamap_sync(sc->sc_dmat, rd->rdata_dmap, 0, rd->rdata_dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); /* Kick start */ sc->sc_start_tx(sc, rd->rdata_txrx_ctrl, idx); back: if (error) m_freem(m); return (error); } void bwi_start_tx32(struct bwi_softc *sc, uint32_t tx_ctrl, int idx) { idx = (idx + 1) % BWI_TX_NDESC; CSR_WRITE_4(sc, tx_ctrl + BWI_TX32_INDEX, idx * sizeof(struct bwi_desc32)); } void bwi_start_tx64(struct bwi_softc *sc, uint32_t tx_ctrl, int idx) { /* TODO: 64 */ } void bwi_txeof_status32(struct bwi_softc *sc) { struct ifnet *ifp = &sc->sc_ic.ic_if; uint32_t val, ctrl_base; int end_idx; ctrl_base = sc->sc_txstats->stats_ctrl_base; val = CSR_READ_4(sc, ctrl_base + BWI_RX32_STATUS); end_idx = __SHIFTOUT(val, BWI_RX32_STATUS_INDEX_MASK) / sizeof(struct bwi_desc32); bwi_txeof_status(sc, end_idx); CSR_WRITE_4(sc, ctrl_base + BWI_RX32_INDEX, end_idx * sizeof(struct bwi_desc32)); if ((ifp->if_flags & IFF_OACTIVE) == 0) ifp->if_start(ifp); } void bwi_txeof_status64(struct bwi_softc *sc) { /* TODO: 64 */ } void _bwi_txeof(struct bwi_softc *sc, uint16_t tx_id) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &sc->sc_ic.ic_if; struct bwi_txbuf_data *tbd; struct bwi_txbuf *tb; int ring_idx, buf_idx; if (tx_id == 0) { printf("%s: zero tx id\n", sc->sc_dev.dv_xname); return; } ring_idx = __SHIFTOUT(tx_id, BWI_TXH_ID_RING_MASK); buf_idx = __SHIFTOUT(tx_id, BWI_TXH_ID_IDX_MASK); KASSERT(ring_idx == BWI_TX_DATA_RING); KASSERT(buf_idx < BWI_TX_NDESC); #if 0 DPRINTF(1, "%s: txeof idx %d\n", sc->sc_dev.dv_xname, buf_idx); #endif tbd = &sc->sc_tx_bdata[ring_idx]; KASSERT(tbd->tbd_used > 0); tbd->tbd_used--; tb = &tbd->tbd_buf[buf_idx]; bus_dmamap_unload(sc->sc_dmat, tb->tb_dmap); m_freem(tb->tb_mbuf); tb->tb_mbuf = NULL; if (tb->tb_ni != NULL) { ieee80211_release_node(ic, tb->tb_ni); tb->tb_ni = NULL; } if (tbd->tbd_used == 0) sc->sc_tx_timer = 0; ifp->if_flags &= ~IFF_OACTIVE; } void bwi_txeof_status(struct bwi_softc *sc, int end_idx) { struct bwi_txstats_data *st = sc->sc_txstats; int idx; bus_dmamap_sync(sc->sc_dmat, st->stats_dmap, 0, st->stats_dmap->dm_mapsize, BUS_DMASYNC_POSTREAD); idx = st->stats_idx; while (idx != end_idx) { _bwi_txeof(sc, letoh16(st->stats[idx].txs_id)); idx = (idx + 1) % BWI_TXSTATS_NDESC; } st->stats_idx = idx; } void bwi_txeof(struct bwi_softc *sc) { struct ifnet *ifp = &sc->sc_ic.ic_if; for (;;) { uint32_t tx_status0, tx_status1; uint16_t tx_id, tx_info; tx_status0 = CSR_READ_4(sc, BWI_TXSTATUS_0); if (tx_status0 == 0) break; tx_status1 = CSR_READ_4(sc, BWI_TXSTATUS_1); tx_id = __SHIFTOUT(tx_status0, BWI_TXSTATUS_0_TXID_MASK); tx_info = BWI_TXSTATUS_0_INFO(tx_status0); if (tx_info & 0x30) /* XXX */ continue; _bwi_txeof(sc, letoh16(tx_id)); ifp->if_opackets++; } if ((ifp->if_flags & IFF_OACTIVE) == 0) ifp->if_start(ifp); } int bwi_bbp_power_on(struct bwi_softc *sc, enum bwi_clock_mode clk_mode) { bwi_power_on(sc, 1); return (bwi_set_clock_mode(sc, clk_mode)); } void bwi_bbp_power_off(struct bwi_softc *sc) { bwi_set_clock_mode(sc, BWI_CLOCK_MODE_SLOW); bwi_power_off(sc, 1); } int bwi_get_pwron_delay(struct bwi_softc *sc) { struct bwi_regwin *com, *old; struct bwi_clock_freq freq; uint32_t val; int error; com = &sc->sc_com_regwin; KASSERT(BWI_REGWIN_EXIST(com)); if ((sc->sc_cap & BWI_CAP_CLKMODE) == 0) return (0); error = bwi_regwin_switch(sc, com, &old); if (error) return (error); bwi_get_clock_freq(sc, &freq); val = CSR_READ_4(sc, BWI_PLL_ON_DELAY); sc->sc_pwron_delay = howmany((val + 2) * 1000000, freq.clkfreq_min); DPRINTF(1, "%s: power on delay %u\n", sc->sc_dev.dv_xname, sc->sc_pwron_delay); return (bwi_regwin_switch(sc, old, NULL)); } int bwi_bus_attach(struct bwi_softc *sc) { struct bwi_regwin *bus, *old; int error; bus = &sc->sc_bus_regwin; error = bwi_regwin_switch(sc, bus, &old); if (error) return (error); if (!bwi_regwin_is_enabled(sc, bus)) bwi_regwin_enable(sc, bus, 0); /* Disable interripts */ CSR_WRITE_4(sc, BWI_INTRVEC, 0); return (bwi_regwin_switch(sc, old, NULL)); } const char * bwi_regwin_name(const struct bwi_regwin *rw) { switch (rw->rw_type) { case BWI_REGWIN_T_COM: return ("COM"); case BWI_REGWIN_T_BUSPCI: return ("PCI"); case BWI_REGWIN_T_MAC: return ("MAC"); case BWI_REGWIN_T_BUSPCIE: return ("PCIE"); } panic("unknown regwin type 0x%04x\n", rw->rw_type); return (NULL); } uint32_t bwi_regwin_disable_bits(struct bwi_softc *sc) { uint32_t busrev; /* XXX cache this */ busrev = __SHIFTOUT(CSR_READ_4(sc, BWI_ID_LO), BWI_ID_LO_BUSREV_MASK); DPRINTF(1, "%s: bus rev %u\n", sc->sc_dev.dv_xname, busrev); if (busrev == BWI_BUSREV_0) return (BWI_STATE_LO_DISABLE1); else if (busrev == BWI_BUSREV_1) return (BWI_STATE_LO_DISABLE2); else return ((BWI_STATE_LO_DISABLE1 | BWI_STATE_LO_DISABLE2)); } int bwi_regwin_is_enabled(struct bwi_softc *sc, struct bwi_regwin *rw) { uint32_t val, disable_bits; disable_bits = bwi_regwin_disable_bits(sc); val = CSR_READ_4(sc, BWI_STATE_LO); if ((val & (BWI_STATE_LO_CLOCK | BWI_STATE_LO_RESET | disable_bits)) == BWI_STATE_LO_CLOCK) { DPRINTF(1, "%s: %s is enabled\n", sc->sc_dev.dv_xname, bwi_regwin_name(rw)); return (1); } else { DPRINTF(1, "%s: %s is disabled\n", sc->sc_dev.dv_xname, bwi_regwin_name(rw)); return (0); } } void bwi_regwin_disable(struct bwi_softc *sc, struct bwi_regwin *rw, uint32_t flags) { uint32_t state_lo, disable_bits; int i; state_lo = CSR_READ_4(sc, BWI_STATE_LO); /* * If current regwin is in 'reset' state, it was already disabled. */ if (state_lo & BWI_STATE_LO_RESET) { DPRINTF(1, "%s: %s was already disabled\n", sc->sc_dev.dv_xname, bwi_regwin_name(rw)); return; } disable_bits = bwi_regwin_disable_bits(sc); /* * Disable normal clock */ state_lo = BWI_STATE_LO_CLOCK | disable_bits; CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* * Wait until normal clock is disabled */ #define NRETRY 1000 for (i = 0; i < NRETRY; ++i) { state_lo = CSR_READ_4(sc, BWI_STATE_LO); if (state_lo & disable_bits) break; DELAY(10); } if (i == NRETRY) { printf("%s: %s disable clock timeout\n", sc->sc_dev.dv_xname, bwi_regwin_name(rw)); } for (i = 0; i < NRETRY; ++i) { uint32_t state_hi; state_hi = CSR_READ_4(sc, BWI_STATE_HI); if ((state_hi & BWI_STATE_HI_BUSY) == 0) break; DELAY(10); } if (i == NRETRY) { printf("%s: %s wait BUSY unset timeout\n", sc->sc_dev.dv_xname, bwi_regwin_name(rw)); } #undef NRETRY /* * Reset and disable regwin with gated clock */ state_lo = BWI_STATE_LO_RESET | disable_bits | BWI_STATE_LO_CLOCK | BWI_STATE_LO_GATED_CLOCK | __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1); /* Reset and disable regwin */ state_lo = BWI_STATE_LO_RESET | disable_bits | __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1); } void bwi_regwin_enable(struct bwi_softc *sc, struct bwi_regwin *rw, uint32_t flags) { uint32_t state_lo, state_hi, imstate; bwi_regwin_disable(sc, rw, flags); /* Reset regwin with gated clock */ state_lo = BWI_STATE_LO_RESET | BWI_STATE_LO_CLOCK | BWI_STATE_LO_GATED_CLOCK | __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1); state_hi = CSR_READ_4(sc, BWI_STATE_HI); if (state_hi & BWI_STATE_HI_SERROR) CSR_WRITE_4(sc, BWI_STATE_HI, 0); imstate = CSR_READ_4(sc, BWI_IMSTATE); if (imstate & (BWI_IMSTATE_INBAND_ERR | BWI_IMSTATE_TIMEOUT)) { imstate &= ~(BWI_IMSTATE_INBAND_ERR | BWI_IMSTATE_TIMEOUT); CSR_WRITE_4(sc, BWI_IMSTATE, imstate); } /* Enable regwin with gated clock */ state_lo = BWI_STATE_LO_CLOCK | BWI_STATE_LO_GATED_CLOCK | __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1); /* Enable regwin with normal clock */ state_lo = BWI_STATE_LO_CLOCK | __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1); } void bwi_set_bssid(struct bwi_softc *sc, const uint8_t *bssid) { struct ieee80211com *ic = &sc->sc_ic; struct bwi_mac *mac; struct bwi_myaddr_bssid buf; const uint8_t *p; uint32_t val; int n, i; KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; bwi_set_addr_filter(sc, BWI_ADDR_FILTER_BSSID, bssid); bcopy(ic->ic_myaddr, buf.myaddr, sizeof(buf.myaddr)); bcopy(bssid, buf.bssid, sizeof(buf.bssid)); n = sizeof(buf) / sizeof(val); p = (const uint8_t *)&buf; for (i = 0; i < n; ++i) { int j; val = 0; for (j = 0; j < sizeof(val); ++j) val |= ((uint32_t)(*p++)) << (j * 8); TMPLT_WRITE_4(mac, 0x20 + (i * sizeof(val)), val); } } void bwi_updateslot(struct ieee80211com *ic) { struct bwi_softc *sc = ic->ic_if.if_softc; struct bwi_mac *mac; struct ifnet *ifp = &ic->ic_if; if ((ifp->if_flags & IFF_RUNNING) == 0) return; DPRINTF(2, "%s: %s\n", sc->sc_dev.dv_xname, __func__); KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; bwi_mac_updateslot(mac, (ic->ic_flags & IEEE80211_F_SHSLOT)); } void bwi_calibrate(void *xsc) { struct bwi_softc *sc = xsc; struct ieee80211com *ic = &sc->sc_ic; int s; s = splnet(); if (ic->ic_state == IEEE80211_S_RUN) { struct bwi_mac *mac; KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; if (ic->ic_opmode != IEEE80211_M_MONITOR) { bwi_mac_calibrate_txpower(mac, sc->sc_txpwrcb_type); sc->sc_txpwrcb_type = BWI_TXPWR_CALIB; } /* XXX 15 seconds */ timeout_add(&sc->sc_calib_ch, hz * 15); } splx(s); } int bwi_calc_rssi(struct bwi_softc *sc, const struct bwi_rxbuf_hdr *hdr) { struct bwi_mac *mac; KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC); mac = (struct bwi_mac *)sc->sc_cur_regwin; return (bwi_rf_calc_rssi(mac, hdr)); }