ar5211.c

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/*      $OpenBSD: ar5211.c,v 1.19 2005/07/30 17:13:17 reyk Exp $        */

/*
 * Copyright (c) 2004, 2005 Reyk Floeter <reyk@vantronix.net>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * HAL interface for the Atheros AR5001 Wireless LAN chipset
 * (AR5211 + AR5111).
 */

#include <dev/ic/ar5xxx.h>
#include <dev/ic/ar5211reg.h>
#include <dev/ic/ar5211var.h>

HAL_BOOL         ar5k_ar5211_nic_reset(struct ath_hal *, u_int32_t);
HAL_BOOL         ar5k_ar5211_nic_wakeup(struct ath_hal *, u_int16_t);
u_int16_t        ar5k_ar5211_radio_revision(struct ath_hal *, HAL_CHIP);
const void       ar5k_ar5211_fill(struct ath_hal *);
void             ar5k_ar5211_rfregs(struct ath_hal *, HAL_CHANNEL *, u_int,
    u_int);

/*
 * Initial register setting for the AR5211
 */
static const struct ar5k_ini ar5211_ini[] =
    AR5K_AR5211_INI;
static const struct ar5k_ar5211_ini_mode ar5211_mode[] =
    AR5K_AR5211_INI_MODE;
static const struct ar5k_ar5211_ini_rf ar5211_rf[] =
    AR5K_AR5211_INI_RF;

AR5K_HAL_FUNCTIONS(extern, ar5k_ar5211,);

const void
ar5k_ar5211_fill(hal)
        struct ath_hal *hal;
{
        hal->ah_magic = AR5K_AR5211_MAGIC;

        /*
         * Init/Exit functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, get_rate_table);
        AR5K_HAL_FUNCTION(hal, ar5211, detach);

        /*
         * Reset functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, reset);
        AR5K_HAL_FUNCTION(hal, ar5211, set_opmode);
        AR5K_HAL_FUNCTION(hal, ar5211, calibrate);

        /*
         * TX functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, update_tx_triglevel);
        AR5K_HAL_FUNCTION(hal, ar5211, setup_tx_queue);
        AR5K_HAL_FUNCTION(hal, ar5211, setup_tx_queueprops);
        AR5K_HAL_FUNCTION(hal, ar5211, release_tx_queue);
        AR5K_HAL_FUNCTION(hal, ar5211, reset_tx_queue);
        AR5K_HAL_FUNCTION(hal, ar5211, get_tx_buf);
        AR5K_HAL_FUNCTION(hal, ar5211, put_tx_buf);
        AR5K_HAL_FUNCTION(hal, ar5211, tx_start);
        AR5K_HAL_FUNCTION(hal, ar5211, stop_tx_dma);
        AR5K_HAL_FUNCTION(hal, ar5211, setup_tx_desc);
        AR5K_HAL_FUNCTION(hal, ar5211, setup_xtx_desc);
        AR5K_HAL_FUNCTION(hal, ar5211, fill_tx_desc);
        AR5K_HAL_FUNCTION(hal, ar5211, proc_tx_desc);
        AR5K_HAL_FUNCTION(hal, ar5211, has_veol);

        /*
         * RX functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, get_rx_buf);
        AR5K_HAL_FUNCTION(hal, ar5211, put_rx_buf);
        AR5K_HAL_FUNCTION(hal, ar5211, start_rx);
        AR5K_HAL_FUNCTION(hal, ar5211, stop_rx_dma);
        AR5K_HAL_FUNCTION(hal, ar5211, start_rx_pcu);
        AR5K_HAL_FUNCTION(hal, ar5211, stop_pcu_recv);
        AR5K_HAL_FUNCTION(hal, ar5211, set_mcast_filter);
        AR5K_HAL_FUNCTION(hal, ar5211, set_mcast_filterindex);
        AR5K_HAL_FUNCTION(hal, ar5211, clear_mcast_filter_idx);
        AR5K_HAL_FUNCTION(hal, ar5211, get_rx_filter);
        AR5K_HAL_FUNCTION(hal, ar5211, set_rx_filter);
        AR5K_HAL_FUNCTION(hal, ar5211, setup_rx_desc);
        AR5K_HAL_FUNCTION(hal, ar5211, proc_rx_desc);
        AR5K_HAL_FUNCTION(hal, ar5211, set_rx_signal);

        /*
         * Misc functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, dump_state);
        AR5K_HAL_FUNCTION(hal, ar5211, get_diag_state);
        AR5K_HAL_FUNCTION(hal, ar5211, get_lladdr);
        AR5K_HAL_FUNCTION(hal, ar5211, set_lladdr);
        AR5K_HAL_FUNCTION(hal, ar5211, set_regdomain);
        AR5K_HAL_FUNCTION(hal, ar5211, set_ledstate);
        AR5K_HAL_FUNCTION(hal, ar5211, set_associd);
        AR5K_HAL_FUNCTION(hal, ar5211, set_gpio_input);
        AR5K_HAL_FUNCTION(hal, ar5211, set_gpio_output);
        AR5K_HAL_FUNCTION(hal, ar5211, get_gpio);
        AR5K_HAL_FUNCTION(hal, ar5211, set_gpio);
        AR5K_HAL_FUNCTION(hal, ar5211, set_gpio_intr);
        AR5K_HAL_FUNCTION(hal, ar5211, get_tsf32);
        AR5K_HAL_FUNCTION(hal, ar5211, get_tsf64);
        AR5K_HAL_FUNCTION(hal, ar5211, reset_tsf);
        AR5K_HAL_FUNCTION(hal, ar5211, get_regdomain);
        AR5K_HAL_FUNCTION(hal, ar5211, detect_card_present);
        AR5K_HAL_FUNCTION(hal, ar5211, update_mib_counters);
        AR5K_HAL_FUNCTION(hal, ar5211, get_rf_gain);
        AR5K_HAL_FUNCTION(hal, ar5211, set_slot_time);
        AR5K_HAL_FUNCTION(hal, ar5211, get_slot_time);
        AR5K_HAL_FUNCTION(hal, ar5211, set_ack_timeout);
        AR5K_HAL_FUNCTION(hal, ar5211, get_ack_timeout);
        AR5K_HAL_FUNCTION(hal, ar5211, set_cts_timeout);
        AR5K_HAL_FUNCTION(hal, ar5211, get_cts_timeout);

        /*
         * Key table (WEP) functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, is_cipher_supported);
        AR5K_HAL_FUNCTION(hal, ar5211, get_keycache_size);
        AR5K_HAL_FUNCTION(hal, ar5211, reset_key);
        AR5K_HAL_FUNCTION(hal, ar5211, is_key_valid);
        AR5K_HAL_FUNCTION(hal, ar5211, set_key);
        AR5K_HAL_FUNCTION(hal, ar5211, set_key_lladdr);

        /*
         * Power management functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, set_power);
        AR5K_HAL_FUNCTION(hal, ar5211, get_power_mode);
        AR5K_HAL_FUNCTION(hal, ar5211, query_pspoll_support);
        AR5K_HAL_FUNCTION(hal, ar5211, init_pspoll);
        AR5K_HAL_FUNCTION(hal, ar5211, enable_pspoll);
        AR5K_HAL_FUNCTION(hal, ar5211, disable_pspoll);

        /*
         * Beacon functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, init_beacon);
        AR5K_HAL_FUNCTION(hal, ar5211, set_beacon_timers);
        AR5K_HAL_FUNCTION(hal, ar5211, reset_beacon);
        AR5K_HAL_FUNCTION(hal, ar5211, wait_for_beacon);

        /*
         * Interrupt functions
         */
        AR5K_HAL_FUNCTION(hal, ar5211, is_intr_pending);
        AR5K_HAL_FUNCTION(hal, ar5211, get_isr);
        AR5K_HAL_FUNCTION(hal, ar5211, get_intr);
        AR5K_HAL_FUNCTION(hal, ar5211, set_intr);

        /*
         * Chipset functions (ar5k-specific, non-HAL)
         */
        AR5K_HAL_FUNCTION(hal, ar5211, get_capabilities);
        AR5K_HAL_FUNCTION(hal, ar5211, radar_alert);

        /*
         * EEPROM access
         */
        AR5K_HAL_FUNCTION(hal, ar5211, eeprom_is_busy);
        AR5K_HAL_FUNCTION(hal, ar5211, eeprom_read);
        AR5K_HAL_FUNCTION(hal, ar5211, eeprom_write);
}

struct ath_hal *
ar5k_ar5211_attach(device, sc, st, sh, status)
        u_int16_t device;
        void *sc;
        bus_space_tag_t st;
        bus_space_handle_t sh;
        int *status;
{
        struct ath_hal *hal = (struct ath_hal*) sc;
        u_int8_t mac[IEEE80211_ADDR_LEN];
        u_int32_t srev;

        ar5k_ar5211_fill(hal);

        /* Bring device out of sleep and reset it's units */
        if (ar5k_ar5211_nic_wakeup(hal, AR5K_INIT_MODE) != AH_TRUE)
                return (NULL);

        /* Get MAC, PHY and RADIO revisions */
        srev = AR5K_REG_READ(AR5K_AR5211_SREV);
        hal->ah_mac_version = AR5K_REG_MS(srev, AR5K_AR5211_SREV_VER);
        hal->ah_mac_revision = AR5K_REG_MS(srev, AR5K_AR5211_SREV_REV);
        hal->ah_phy_revision = AR5K_REG_READ(AR5K_AR5211_PHY_CHIP_ID) &
            0x00ffffffff;

        hal->ah_radio_5ghz_revision =
            ar5k_ar5211_radio_revision(hal, HAL_CHIP_5GHZ);

        /* Get the 2GHz radio revision if it's supported */
        if (hal->ah_mac_version >= AR5K_SREV_VER_AR5211)
                hal->ah_radio_2ghz_revision =
                    ar5k_ar5211_radio_revision(hal, HAL_CHIP_2GHZ);

        /* Identify the chipset (this has to be done in an early step) */
        hal->ah_version = AR5K_AR5211;
        hal->ah_radio = AR5K_AR5111;
        hal->ah_phy = AR5K_AR5211_PHY(0);

        bcopy(etherbroadcastaddr, mac, IEEE80211_ADDR_LEN);
        ar5k_ar5211_set_associd(hal, mac, 0, 0);
        ar5k_ar5211_get_lladdr(hal, mac);
        ar5k_ar5211_set_opmode(hal);

        return (hal);
}

HAL_BOOL
ar5k_ar5211_nic_reset(hal, val)
        struct ath_hal *hal;
        u_int32_t val;
{
        HAL_BOOL ret = AH_FALSE;
        u_int32_t mask = val ? val : ~0;

        /* Read-and-clear */
        AR5K_REG_READ(AR5K_AR5211_RXDP);

        /*
         * Reset the device and wait until success
         */
        AR5K_REG_WRITE(AR5K_AR5211_RC, val);

        /* Wait at least 128 PCI clocks */
        AR5K_DELAY(15);

        val &=
            AR5K_AR5211_RC_PCU | AR5K_AR5211_RC_BB;

        mask &=
            AR5K_AR5211_RC_PCU | AR5K_AR5211_RC_BB;

        ret = ar5k_register_timeout(hal, AR5K_AR5211_RC, mask, val, AH_FALSE);

        /*
         * Reset configuration register
         */
        if ((val & AR5K_AR5211_RC_PCU) == 0)
                AR5K_REG_WRITE(AR5K_AR5211_CFG, AR5K_AR5211_INIT_CFG);

        return (ret);
}

HAL_BOOL
ar5k_ar5211_nic_wakeup(hal, flags)
        struct ath_hal *hal;
        u_int16_t flags;
{
        u_int32_t turbo, mode, clock;

        turbo = 0;
        mode = 0;
        clock = 0;

        /*
         * Get channel mode flags
         */

        if (flags & IEEE80211_CHAN_2GHZ) {
                mode |= AR5K_AR5211_PHY_MODE_FREQ_2GHZ;
                clock |= AR5K_AR5211_PHY_PLL_44MHZ;
        } else if (flags & IEEE80211_CHAN_5GHZ) {
                mode |= AR5K_AR5211_PHY_MODE_FREQ_5GHZ;
                clock |= AR5K_AR5211_PHY_PLL_40MHZ;
        } else {
                AR5K_PRINT("invalid radio frequency mode\n");
                return (AH_FALSE);
        }

        if ((flags & IEEE80211_CHAN_CCK) ||
            (flags & IEEE80211_CHAN_DYN)) {
                /* Dynamic OFDM/CCK is not supported by the AR5211 */
                mode |= AR5K_AR5211_PHY_MODE_MOD_CCK;
        } else if (flags & IEEE80211_CHAN_OFDM) {
                mode |= AR5K_AR5211_PHY_MODE_MOD_OFDM;
        } else {
                AR5K_PRINT("invalid radio frequency mode\n");
                return (AH_FALSE);
        }

        if (flags & IEEE80211_CHAN_TURBO) {
                turbo = AR5K_AR5211_PHY_TURBO_MODE |
                    AR5K_AR5211_PHY_TURBO_SHORT;
        }

        /*
         * Reset and wakeup the device
         */

        /* ...reset chipset and PCI device */
        if (ar5k_ar5211_nic_reset(hal,
                AR5K_AR5211_RC_CHIP | AR5K_AR5211_RC_PCI) == AH_FALSE) {
                AR5K_PRINT("failed to reset the AR5211 + PCI chipset\n");
                return (AH_FALSE);
        }

        /* ...wakeup */
        if (ar5k_ar5211_set_power(hal,
                HAL_PM_AWAKE, AH_TRUE, 0) == AH_FALSE) {
                AR5K_PRINT("failed to resume the AR5211 (again)\n");
                return (AH_FALSE);
        }

        /* ...final warm reset */
        if (ar5k_ar5211_nic_reset(hal, 0) == AH_FALSE) {
                AR5K_PRINT("failed to warm reset the AR5211\n");
                return (AH_FALSE);
        }

        /* ...set the PHY operating mode */
        AR5K_REG_WRITE(AR5K_AR5211_PHY_PLL, clock);
        AR5K_DELAY(300);

        AR5K_REG_WRITE(AR5K_AR5211_PHY_MODE, mode);
        AR5K_REG_WRITE(AR5K_AR5211_PHY_TURBO, turbo);

        return (AH_TRUE);
}

u_int16_t
ar5k_ar5211_radio_revision(hal, chip)
        struct ath_hal *hal;
        HAL_CHIP chip;
{
        int i;
        u_int32_t srev;
        u_int16_t ret;

        /*
         * Set the radio chip access register
         */
        switch (chip) {
        case HAL_CHIP_2GHZ:
                AR5K_REG_WRITE(AR5K_AR5211_PHY(0), AR5K_AR5211_PHY_SHIFT_2GHZ);
                break;
        case HAL_CHIP_5GHZ:
                AR5K_REG_WRITE(AR5K_AR5211_PHY(0), AR5K_AR5211_PHY_SHIFT_5GHZ);
                break;
        default:
                return (0);
        }

        AR5K_DELAY(2000);

        /* ...wait until PHY is ready and read the selected radio revision */
        AR5K_REG_WRITE(AR5K_AR5211_PHY(0x34), 0x00001c16);

        for (i = 0; i < 8; i++)
                AR5K_REG_WRITE(AR5K_AR5211_PHY(0x20), 0x00010000);
        srev = (AR5K_REG_READ(AR5K_AR5211_PHY(0x100)) >> 24) & 0xff;

        ret = ar5k_bitswap(((srev & 0xf0) >> 4) | ((srev & 0x0f) << 4), 8);

        /* Reset to the 5GHz mode */
        AR5K_REG_WRITE(AR5K_AR5211_PHY(0), AR5K_AR5211_PHY_SHIFT_5GHZ);

        return (ret);
}

const HAL_RATE_TABLE *
ar5k_ar5211_get_rate_table(hal, mode)
        struct ath_hal *hal;
        u_int mode;
{
        switch (mode) {
        case HAL_MODE_11A:
                return (&hal->ah_rt_11a);
        case HAL_MODE_TURBO:
                return (&hal->ah_rt_turbo);
        case HAL_MODE_11B:
                return (&hal->ah_rt_11b);
        case HAL_MODE_11G:
        case HAL_MODE_PUREG:
                return (&hal->ah_rt_11g);
        default:
                return (NULL);
        }

        return (NULL);
}

void
ar5k_ar5211_detach(hal)
        struct ath_hal *hal;
{
        /*
         * Free HAL structure, assume interrupts are down
         */
        free(hal, M_DEVBUF);
}

HAL_BOOL
ar5k_ar5211_reset(hal, op_mode, channel, change_channel, status)
        struct ath_hal *hal;
        HAL_OPMODE op_mode;
        HAL_CHANNEL *channel;
        HAL_BOOL change_channel;
        HAL_STATUS *status;
{
        struct ar5k_eeprom_info *ee = &hal->ah_capabilities.cap_eeprom;
        u_int8_t mac[IEEE80211_ADDR_LEN];
        u_int32_t data, s_seq, s_ant, s_led[3];
        u_int i, mode, freq, ee_mode, ant[2];

        /*
         * Save some registers before a reset
         */
        if (change_channel == AH_TRUE) {
                s_seq = AR5K_REG_READ(AR5K_AR5211_DCU_SEQNUM(0));
                s_ant = AR5K_REG_READ(AR5K_AR5211_DEFAULT_ANTENNA);
        } else {
                s_seq = 0;
                s_ant = 1;
        }

        s_led[0] = AR5K_REG_READ(AR5K_AR5211_PCICFG) &
            AR5K_AR5211_PCICFG_LEDSTATE;
        s_led[1] = AR5K_REG_READ(AR5K_AR5211_GPIOCR);
        s_led[2] = AR5K_REG_READ(AR5K_AR5211_GPIODO);

        if (ar5k_ar5211_nic_wakeup(hal, channel->c_channel_flags) == AH_FALSE)
                return (AH_FALSE);

        /*
         * Initialize operating mode
         */
        hal->ah_op_mode = op_mode;

        if (channel->c_channel_flags & IEEE80211_CHAN_A) {
                mode = AR5K_INI_VAL_11A;
                freq = AR5K_INI_RFGAIN_5GHZ;
                ee_mode = AR5K_EEPROM_MODE_11A;
        } else if (channel->c_channel_flags & IEEE80211_CHAN_T) {
                mode = AR5K_INI_VAL_11A_TURBO;
                freq = AR5K_INI_RFGAIN_5GHZ;
                ee_mode = AR5K_EEPROM_MODE_11A;
        } else if (channel->c_channel_flags & IEEE80211_CHAN_B) {
                mode = AR5K_INI_VAL_11B;
                freq = AR5K_INI_RFGAIN_2GHZ;
                ee_mode = AR5K_EEPROM_MODE_11B;
        } else if (channel->c_channel_flags & IEEE80211_CHAN_G) {
                mode = AR5K_INI_VAL_11G;
                freq = AR5K_INI_RFGAIN_2GHZ;
                ee_mode = AR5K_EEPROM_MODE_11G;
        } else {
                AR5K_PRINTF("invalid channel: %d\n", channel->c_channel);
                return (AH_FALSE);
        }

        /* PHY access enable */
        AR5K_REG_WRITE(AR5K_AR5211_PHY(0), AR5K_AR5211_PHY_SHIFT_5GHZ);

        /*
         * Write initial RF registers
         */
        ar5k_ar5211_rfregs(hal, channel, freq, ee_mode);

        /*
         * Write initial mode settings
         */
        for (i = 0; i < AR5K_ELEMENTS(ar5211_mode); i++) {
                AR5K_REG_WAIT(i);
                AR5K_REG_WRITE((u_int32_t)ar5211_mode[i].mode_register,
                    ar5211_mode[i].mode_value[mode]);
        }

        /*
         * Write initial register settings
         */
        for (i = 0; i < AR5K_ELEMENTS(ar5211_ini); i++) {
                if (change_channel == AH_TRUE &&
                    ar5211_ini[i].ini_register >= AR5K_AR5211_PCU_MIN &&
                    ar5211_ini[i].ini_register <= AR5K_AR5211_PCU_MAX)
                        continue;

                AR5K_REG_WAIT(i);
                AR5K_REG_WRITE((u_int32_t)ar5211_ini[i].ini_register,
                    ar5211_ini[i].ini_value);
        }

        /*
         * Write initial RF gain settings
         */
        if (ar5k_rfgain(hal, AR5K_INI_PHY_5111, freq) == AH_FALSE)
                return (AH_FALSE);

        AR5K_DELAY(1000);

        /*
         * Configure additional registers
         */

        if (hal->ah_radio == AR5K_AR5111) {
                if (channel->c_channel_flags & IEEE80211_CHAN_B)
                        AR5K_REG_ENABLE_BITS(AR5K_AR5211_TXCFG,
                            AR5K_AR5211_TXCFG_B_MODE);
                else
                        AR5K_REG_DISABLE_BITS(AR5K_AR5211_TXCFG,
                            AR5K_AR5211_TXCFG_B_MODE);
        }

        /* Set antenna mode */
        AR5K_REG_MASKED_BITS(AR5K_AR5211_PHY(0x44),
            hal->ah_antenna[ee_mode][0], 0xfffffc06);

        ant[0] = HAL_ANT_FIXED_A;
        ant[1] = HAL_ANT_FIXED_B;

        if (hal->ah_ant_diversity == AH_FALSE) {
                if (freq == AR5K_INI_RFGAIN_2GHZ)
                        ant[0] = HAL_ANT_FIXED_B;
                else if (freq == AR5K_INI_RFGAIN_5GHZ)
                        ant[1] = HAL_ANT_FIXED_A;
        }

        AR5K_REG_WRITE(AR5K_AR5211_PHY_ANT_SWITCH_TABLE_0,
            hal->ah_antenna[ee_mode][ant[0]]);
        AR5K_REG_WRITE(AR5K_AR5211_PHY_ANT_SWITCH_TABLE_1,
            hal->ah_antenna[ee_mode][ant[1]]);

        /* Commit values from EEPROM */
        AR5K_REG_WRITE_BITS(AR5K_AR5211_PHY_FC,
            AR5K_AR5211_PHY_FC_TX_CLIP, ee->ee_tx_clip);

        AR5K_REG_WRITE(AR5K_AR5211_PHY(0x5a),
            AR5K_AR5211_PHY_NF_SVAL(ee->ee_noise_floor_thr[ee_mode]));

        AR5K_REG_MASKED_BITS(AR5K_AR5211_PHY(0x11),
            (ee->ee_switch_settling[ee_mode] << 7) & 0x3f80, 0xffffc07f);
        AR5K_REG_MASKED_BITS(AR5K_AR5211_PHY(0x12),
            (ee->ee_ant_tx_rx[ee_mode] << 12) & 0x3f000, 0xfffc0fff);
        AR5K_REG_MASKED_BITS(AR5K_AR5211_PHY(0x14),
            (ee->ee_adc_desired_size[ee_mode] & 0x00ff) |
            ((ee->ee_pga_desired_size[ee_mode] << 8) & 0xff00), 0xffff0000);

        AR5K_REG_WRITE(AR5K_AR5211_PHY(0x0d),
            (ee->ee_tx_end2xpa_disable[ee_mode] << 24) |
            (ee->ee_tx_end2xpa_disable[ee_mode] << 16) |
            (ee->ee_tx_frm2xpa_enable[ee_mode] << 8) |
            (ee->ee_tx_frm2xpa_enable[ee_mode]));

        AR5K_REG_MASKED_BITS(AR5K_AR5211_PHY(0x0a),
            ee->ee_tx_end2xlna_enable[ee_mode] << 8, 0xffff00ff);
        AR5K_REG_MASKED_BITS(AR5K_AR5211_PHY(0x19),
            (ee->ee_thr_62[ee_mode] << 12) & 0x7f000, 0xfff80fff);
        AR5K_REG_MASKED_BITS(AR5K_AR5211_PHY(0x49), 4, 0xffffff01);

        AR5K_REG_ENABLE_BITS(AR5K_AR5211_PHY_IQ,
            AR5K_AR5211_PHY_IQ_CORR_ENABLE |
            (ee->ee_i_cal[ee_mode] << AR5K_AR5211_PHY_IQ_CORR_Q_I_COFF_S) |
            ee->ee_q_cal[ee_mode]);

        /*
         * Restore saved values
         */
        AR5K_REG_WRITE(AR5K_AR5211_DCU_SEQNUM(0), s_seq);
        AR5K_REG_WRITE(AR5K_AR5211_DEFAULT_ANTENNA, s_ant);
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_PCICFG, s_led[0]);
        AR5K_REG_WRITE(AR5K_AR5211_GPIOCR, s_led[1]);
        AR5K_REG_WRITE(AR5K_AR5211_GPIODO, s_led[2]);

        /*
         * Misc
         */
        bcopy(etherbroadcastaddr, mac, IEEE80211_ADDR_LEN);
        ar5k_ar5211_set_associd(hal, mac, 0, 0);
        ar5k_ar5211_set_opmode(hal);
        AR5K_REG_WRITE(AR5K_AR5211_PISR, 0xffffffff);
        AR5K_REG_WRITE(AR5K_AR5211_RSSI_THR, AR5K_TUNE_RSSI_THRES);

        /*
         * Set Rx/Tx DMA Configuration
         */
        AR5K_REG_WRITE_BITS(AR5K_AR5211_TXCFG, AR5K_AR5211_TXCFG_SDMAMR,
            AR5K_AR5211_DMASIZE_512B | AR5K_AR5211_TXCFG_DMASIZE);
        AR5K_REG_WRITE_BITS(AR5K_AR5211_RXCFG, AR5K_AR5211_RXCFG_SDMAMW,
            AR5K_AR5211_DMASIZE_512B);

        /*
         * Set channel and calibrate the PHY
         */
        if (ar5k_channel(hal, channel) == AH_FALSE)
                return (AH_FALSE);

        /*
         * Enable the PHY and wait until completion
         */
        AR5K_REG_WRITE(AR5K_AR5211_PHY_ACTIVE, AR5K_AR5211_PHY_ENABLE);

        data = AR5K_REG_READ(AR5K_AR5211_PHY_RX_DELAY) &
            AR5K_AR5211_PHY_RX_DELAY_M;
        data = (channel->c_channel_flags & IEEE80211_CHAN_CCK) ?
            ((data << 2) / 22) : (data / 10);

        AR5K_DELAY(100 + data);

        /*
         * Start calibration
         */
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_PHY_AGCCTL,
            AR5K_AR5211_PHY_AGCCTL_NF |
            AR5K_AR5211_PHY_AGCCTL_CAL);

        if (channel->c_channel_flags & IEEE80211_CHAN_B) {
                hal->ah_calibration = AH_FALSE;
        } else {
                hal->ah_calibration = AH_TRUE;
                AR5K_REG_WRITE_BITS(AR5K_AR5211_PHY_IQ,
                    AR5K_AR5211_PHY_IQ_CAL_NUM_LOG_MAX, 15);
                AR5K_REG_ENABLE_BITS(AR5K_AR5211_PHY_IQ,
                    AR5K_AR5211_PHY_IQ_RUN);
        }

        /*
         * Reset queues and start beacon timers at the end of the reset routine
         */
        for (i = 0; i < hal->ah_capabilities.cap_queues.q_tx_num; i++) {
                AR5K_REG_WRITE_Q(AR5K_AR5211_DCU_QCUMASK(i), i);
                if (ar5k_ar5211_reset_tx_queue(hal, i) == AH_FALSE) {
                        AR5K_PRINTF("failed to reset TX queue #%d\n", i);
                        return (AH_FALSE);
                }
        }

        /* Pre-enable interrupts */
        ar5k_ar5211_set_intr(hal, HAL_INT_RX | HAL_INT_TX | HAL_INT_FATAL);

        /*
         * Set RF kill flags if supported by the device (read from the EEPROM)
         */
        if (AR5K_EEPROM_HDR_RFKILL(hal->ah_capabilities.cap_eeprom.ee_header)) {
                ar5k_ar5211_set_gpio_input(hal, 0);
                if ((hal->ah_gpio[0] = ar5k_ar5211_get_gpio(hal, 0)) == 0)
                        ar5k_ar5211_set_gpio_intr(hal, 0, 1);
                else
                        ar5k_ar5211_set_gpio_intr(hal, 0, 0);
        }

        /* 
         * Disable beacons and reset the register
         */
        AR5K_REG_DISABLE_BITS(AR5K_AR5211_BEACON,
            AR5K_AR5211_BEACON_ENABLE | AR5K_AR5211_BEACON_RESET_TSF);

        return (AH_TRUE);
}

void
ar5k_ar5211_set_opmode(hal)
        struct ath_hal *hal;
{
        u_int32_t pcu_reg, low_id, high_id;

        pcu_reg = 0;

        switch (hal->ah_op_mode) {
        case IEEE80211_M_IBSS:
                pcu_reg |= AR5K_AR5211_STA_ID1_ADHOC |
                    AR5K_AR5211_STA_ID1_DESC_ANTENNA;
                break;

        case IEEE80211_M_HOSTAP:
                pcu_reg |= AR5K_AR5211_STA_ID1_AP |
                    AR5K_AR5211_STA_ID1_RTS_DEFAULT_ANTENNA;
                break;

        case IEEE80211_M_STA:
        case IEEE80211_M_MONITOR:
                pcu_reg |= AR5K_AR5211_STA_ID1_DEFAULT_ANTENNA;
                break;

        default:
                return;
        }

        /*
         * Set PCU registers
         */
        bcopy(&(hal->ah_sta_id[0]), &low_id, 4);
        bcopy(&(hal->ah_sta_id[4]), &high_id, 2);
        AR5K_REG_WRITE(AR5K_AR5211_STA_ID0, low_id);
        AR5K_REG_WRITE(AR5K_AR5211_STA_ID1, pcu_reg | high_id);

        return;
}

HAL_BOOL
ar5k_ar5211_calibrate(hal, channel)
        struct ath_hal *hal;
        HAL_CHANNEL *channel;
{
        u_int32_t i_pwr, q_pwr;
        int32_t iq_corr, i_coff, i_coffd, q_coff, q_coffd;

        if (hal->ah_calibration == AH_FALSE ||
            AR5K_REG_READ(AR5K_AR5211_PHY_IQ) & AR5K_AR5211_PHY_IQ_RUN)
                goto done;

        hal->ah_calibration = AH_FALSE;

        iq_corr = AR5K_REG_READ(AR5K_AR5211_PHY_IQRES_CAL_CORR);
        i_pwr = AR5K_REG_READ(AR5K_AR5211_PHY_IQRES_CAL_PWR_I);
        q_pwr = AR5K_REG_READ(AR5K_AR5211_PHY_IQRES_CAL_PWR_Q);
        i_coffd = ((i_pwr >> 1) + (q_pwr >> 1)) >> 7;
        q_coffd = q_pwr >> 6;

        if (i_coffd == 0 || q_coffd == 0)
                goto done;

        i_coff = ((-iq_corr) / i_coffd) & 0x3f;
        q_coff = (((int32_t)i_pwr / q_coffd) - 64) & 0x1f;

        /* Commit new IQ value */
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_PHY_IQ,
            AR5K_AR5211_PHY_IQ_CORR_ENABLE |
            ((u_int32_t)q_coff) |
            ((u_int32_t)i_coff << AR5K_AR5211_PHY_IQ_CORR_Q_I_COFF_S));

 done:
        /* Start noise floor calibration */
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_PHY_AGCCTL,
            AR5K_AR5211_PHY_AGCCTL_NF);

        return (AH_TRUE);
}

/*
 * Transmit functions
 */

HAL_BOOL
ar5k_ar5211_update_tx_triglevel(hal, increase)
        struct ath_hal *hal;
        HAL_BOOL increase;
{
        u_int32_t trigger_level, imr;
        HAL_BOOL status = AH_FALSE;

        /*
         * Disable interrupts by setting the mask
         */
        imr = ar5k_ar5211_set_intr(hal, hal->ah_imr & ~HAL_INT_GLOBAL);

        trigger_level = AR5K_REG_MS(AR5K_REG_READ(AR5K_AR5211_TXCFG),
            AR5K_AR5211_TXCFG_TXFULL);

        if (increase == AH_FALSE) {
                if (--trigger_level < AR5K_TUNE_MIN_TX_FIFO_THRES)
                        goto done;
        } else
                trigger_level +=
                    ((AR5K_TUNE_MAX_TX_FIFO_THRES - trigger_level) / 2);

        /*
         * Update trigger level on success
         */
        AR5K_REG_WRITE_BITS(AR5K_AR5211_TXCFG,
            AR5K_AR5211_TXCFG_TXFULL, trigger_level);
        status = AH_TRUE;

 done:
        /*
         * Restore interrupt mask
         */
        ar5k_ar5211_set_intr(hal, imr);

        return (status);
}

int
ar5k_ar5211_setup_tx_queue(hal, queue_type, queue_info)
        struct ath_hal *hal;
        HAL_TX_QUEUE queue_type;
        const HAL_TXQ_INFO *queue_info;
{
        u_int queue;

        /*
         * Get queue by type
         */
        if (queue_type == HAL_TX_QUEUE_DATA) {
                for (queue = HAL_TX_QUEUE_ID_DATA_MIN;
                     hal->ah_txq[queue].tqi_type != HAL_TX_QUEUE_INACTIVE;
                     queue++)
                        if (queue > HAL_TX_QUEUE_ID_DATA_MAX)
                                return (-1);
        } else if (queue_type == HAL_TX_QUEUE_PSPOLL) {
                queue = HAL_TX_QUEUE_ID_PSPOLL;
        } else if (queue_type == HAL_TX_QUEUE_BEACON) {
                queue = HAL_TX_QUEUE_ID_BEACON;
        } else if (queue_type == HAL_TX_QUEUE_CAB) {
                queue = HAL_TX_QUEUE_ID_CAB;
        } else
                return (-1);

        /*
         * Setup internal queue structure
         */
        bzero(&hal->ah_txq[queue], sizeof(HAL_TXQ_INFO));
        hal->ah_txq[queue].tqi_type = queue_type;

        if (queue_info != NULL) {
                if (ar5k_ar5211_setup_tx_queueprops(hal, queue, queue_info)
                    != AH_TRUE)
                        return (-1);
        }

        AR5K_Q_ENABLE_BITS(hal->ah_txq_interrupts, queue);

        return (queue);
}

HAL_BOOL
ar5k_ar5211_setup_tx_queueprops(hal, queue, queue_info)
        struct ath_hal *hal;
        int queue;
        const HAL_TXQ_INFO *queue_info;
{
        AR5K_ASSERT_ENTRY(queue, hal->ah_capabilities.cap_queues.q_tx_num);

        if (hal->ah_txq[queue].tqi_type == HAL_TX_QUEUE_INACTIVE)
                return (AH_FALSE);

        bcopy(queue_info, &hal->ah_txq[queue], sizeof(HAL_TXQ_INFO));

        if (queue_info->tqi_type == HAL_TX_QUEUE_DATA &&
            (queue_info->tqi_subtype >= HAL_WME_AC_VI) &&
            (queue_info->tqi_subtype <= HAL_WME_UPSD))
                hal->ah_txq[queue].tqi_flags |=
                    AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS;

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_release_tx_queue(hal, queue)
        struct ath_hal *hal;
        u_int queue;
{
        AR5K_ASSERT_ENTRY(queue, hal->ah_capabilities.cap_queues.q_tx_num);

        /* This queue will be skipped in further operations */
        hal->ah_txq[queue].tqi_type = HAL_TX_QUEUE_INACTIVE;
        AR5K_Q_DISABLE_BITS(hal->ah_txq_interrupts, queue);

        return (AH_FALSE);
}

HAL_BOOL
ar5k_ar5211_reset_tx_queue(hal, queue)
        struct ath_hal *hal;
        u_int queue;
{
        u_int32_t cw_min, cw_max, retry_lg, retry_sh;
        struct ieee80211_channel *channel = (struct ieee80211_channel*)
            &hal->ah_current_channel;
        HAL_TXQ_INFO *tq;

        AR5K_ASSERT_ENTRY(queue, hal->ah_capabilities.cap_queues.q_tx_num);

        tq = &hal->ah_txq[queue];

        if (tq->tqi_type == HAL_TX_QUEUE_INACTIVE)
                return (AH_TRUE);

        /*
         * Set registers by channel mode
         */
        if (IEEE80211_IS_CHAN_B(channel)) {
                hal->ah_cw_min = AR5K_TUNE_CWMIN_11B;
                cw_max = hal->ah_cw_max = AR5K_TUNE_CWMAX_11B;
                hal->ah_aifs = AR5K_TUNE_AIFS_11B;
        } else {
                hal->ah_cw_min = AR5K_TUNE_CWMIN;
                cw_max = hal->ah_cw_max = AR5K_TUNE_CWMAX;
                hal->ah_aifs = AR5K_TUNE_AIFS;
        }

        /*
         * Set retry limits
         */
        if (hal->ah_software_retry == AH_TRUE) {
                /* XXX Need to test this */
                retry_lg = hal->ah_limit_tx_retries;
                retry_sh = retry_lg =
                    retry_lg > AR5K_AR5211_DCU_RETRY_LMT_SH_RETRY ?
                    AR5K_AR5211_DCU_RETRY_LMT_SH_RETRY : retry_lg;
        } else {
                retry_lg = AR5K_INIT_LG_RETRY;
                retry_sh = AR5K_INIT_SH_RETRY;
        }

        AR5K_REG_WRITE(AR5K_AR5211_DCU_RETRY_LMT(queue),
            AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
            AR5K_AR5211_DCU_RETRY_LMT_SLG_RETRY) |
            AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
            AR5K_AR5211_DCU_RETRY_LMT_SSH_RETRY) |
            AR5K_REG_SM(retry_lg, AR5K_AR5211_DCU_RETRY_LMT_LG_RETRY) |
            AR5K_REG_SM(retry_sh, AR5K_AR5211_DCU_RETRY_LMT_SH_RETRY));

        /*
         * Set initial content window (cw_min/cw_max)
         */
        cw_min = 1;
        while (cw_min < hal->ah_cw_min)
                cw_min = (cw_min << 1) | 1;

        cw_min = tq->tqi_cw_min < 0 ?
            (cw_min >> (-tq->tqi_cw_min)) :
            ((cw_min << tq->tqi_cw_min) + (1 << tq->tqi_cw_min) - 1);
        cw_max = tq->tqi_cw_max < 0 ?
            (cw_max >> (-tq->tqi_cw_max)) :
            ((cw_max << tq->tqi_cw_max) + (1 << tq->tqi_cw_max) - 1);

        AR5K_REG_WRITE(AR5K_AR5211_DCU_LCL_IFS(queue),
            AR5K_REG_SM(cw_min, AR5K_AR5211_DCU_LCL_IFS_CW_MIN) |
            AR5K_REG_SM(cw_max, AR5K_AR5211_DCU_LCL_IFS_CW_MAX) |
            AR5K_REG_SM(hal->ah_aifs + tq->tqi_aifs,
            AR5K_AR5211_DCU_LCL_IFS_AIFS));

        /*
         * Set misc registers
         */
        AR5K_REG_WRITE(AR5K_AR5211_QCU_MISC(queue),
            AR5K_AR5211_QCU_MISC_DCU_EARLY);

        if (tq->tqi_cbr_period) {
                AR5K_REG_WRITE(AR5K_AR5211_QCU_CBRCFG(queue),
                    AR5K_REG_SM(tq->tqi_cbr_period,
                    AR5K_AR5211_QCU_CBRCFG_INTVAL) |
                    AR5K_REG_SM(tq->tqi_cbr_overflow_limit,
                    AR5K_AR5211_QCU_CBRCFG_ORN_THRES));
                AR5K_REG_ENABLE_BITS(AR5K_AR5211_QCU_MISC(queue),
                    AR5K_AR5211_QCU_MISC_FRSHED_CBR);
                if (tq->tqi_cbr_overflow_limit)
                        AR5K_REG_ENABLE_BITS(AR5K_AR5211_QCU_MISC(queue),
                            AR5K_AR5211_QCU_MISC_CBR_THRES_ENABLE);
        }

        if (tq->tqi_ready_time) {
                AR5K_REG_WRITE(AR5K_AR5211_QCU_RDYTIMECFG(queue),
                    AR5K_REG_SM(tq->tqi_ready_time,
                    AR5K_AR5211_QCU_RDYTIMECFG_INTVAL) |
                    AR5K_AR5211_QCU_RDYTIMECFG_ENABLE);
        }

        if (tq->tqi_burst_time) {
                AR5K_REG_WRITE(AR5K_AR5211_DCU_CHAN_TIME(queue),
                    AR5K_REG_SM(tq->tqi_burst_time,
                    AR5K_AR5211_DCU_CHAN_TIME_DUR) |
                    AR5K_AR5211_DCU_CHAN_TIME_ENABLE);

                if (tq->tqi_flags & AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE) {
                        AR5K_REG_ENABLE_BITS(AR5K_AR5211_QCU_MISC(queue),
                            AR5K_AR5211_QCU_MISC_TXE);
                }
        }

        if (tq->tqi_flags & AR5K_TXQ_FLAG_BACKOFF_DISABLE) {
                AR5K_REG_WRITE(AR5K_AR5211_DCU_MISC(queue),
                    AR5K_AR5211_DCU_MISC_POST_FR_BKOFF_DIS);
        }

        if (tq->tqi_flags & AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE) {
                AR5K_REG_WRITE(AR5K_AR5211_DCU_MISC(queue),
                    AR5K_AR5211_DCU_MISC_BACKOFF_FRAG);
        }

        /*
         * Set registers by queue type
         */
        switch (tq->tqi_type) {
        case HAL_TX_QUEUE_BEACON:
                AR5K_REG_ENABLE_BITS(AR5K_AR5211_QCU_MISC(queue),
                    AR5K_AR5211_QCU_MISC_FRSHED_DBA_GT |
                    AR5K_AR5211_QCU_MISC_CBREXP_BCN |
                    AR5K_AR5211_QCU_MISC_BCN_ENABLE);

                AR5K_REG_ENABLE_BITS(AR5K_AR5211_DCU_MISC(queue),
                    (AR5K_AR5211_DCU_MISC_ARBLOCK_CTL_GLOBAL <<
                    AR5K_AR5211_DCU_MISC_ARBLOCK_CTL_GLOBAL) |
                    AR5K_AR5211_DCU_MISC_POST_FR_BKOFF_DIS |
                    AR5K_AR5211_DCU_MISC_BCN_ENABLE);

                AR5K_REG_WRITE(AR5K_AR5211_QCU_RDYTIMECFG(queue),
                    ((AR5K_TUNE_BEACON_INTERVAL -
                    (AR5K_TUNE_SW_BEACON_RESP - AR5K_TUNE_DMA_BEACON_RESP) -
                    AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF) * 1024) |
                    AR5K_AR5211_QCU_RDYTIMECFG_ENABLE);
                break;

        case HAL_TX_QUEUE_CAB:
                AR5K_REG_ENABLE_BITS(AR5K_AR5211_QCU_MISC(queue),
                    AR5K_AR5211_QCU_MISC_FRSHED_DBA_GT |
                    AR5K_AR5211_QCU_MISC_CBREXP |
                    AR5K_AR5211_QCU_MISC_CBREXP_BCN);

                AR5K_REG_ENABLE_BITS(AR5K_AR5211_DCU_MISC(queue),
                    (AR5K_AR5211_DCU_MISC_ARBLOCK_CTL_GLOBAL <<
                    AR5K_AR5211_DCU_MISC_ARBLOCK_CTL_GLOBAL));
                break;

        case HAL_TX_QUEUE_PSPOLL:
                AR5K_REG_ENABLE_BITS(AR5K_AR5211_QCU_MISC(queue),
                    AR5K_AR5211_QCU_MISC_CBREXP);
                break;

        case HAL_TX_QUEUE_DATA:
        default:
                break;
        }

        /*
         * Enable tx queue in the secondary interrupt mask registers
         */
        AR5K_REG_WRITE(AR5K_AR5211_SIMR0,
            AR5K_REG_SM(hal->ah_txq_interrupts, AR5K_AR5211_SIMR0_QCU_TXOK) |
            AR5K_REG_SM(hal->ah_txq_interrupts, AR5K_AR5211_SIMR0_QCU_TXDESC));
        AR5K_REG_WRITE(AR5K_AR5211_SIMR1,
            AR5K_REG_SM(hal->ah_txq_interrupts, AR5K_AR5211_SIMR1_QCU_TXERR));
        AR5K_REG_WRITE(AR5K_AR5211_SIMR2,
            AR5K_REG_SM(hal->ah_txq_interrupts, AR5K_AR5211_SIMR2_QCU_TXURN));

        return (AH_TRUE);
}

u_int32_t
ar5k_ar5211_get_tx_buf(hal, queue)
        struct ath_hal *hal;
        u_int queue;
{
        AR5K_ASSERT_ENTRY(queue, hal->ah_capabilities.cap_queues.q_tx_num);

        /*
         * Get the transmit queue descriptor pointer from the selected queue
         */
        return (AR5K_REG_READ(AR5K_AR5211_QCU_TXDP(queue)));
}

HAL_BOOL
ar5k_ar5211_put_tx_buf(hal, queue, phys_addr)
        struct ath_hal *hal;
        u_int queue;
        u_int32_t phys_addr;
{
        AR5K_ASSERT_ENTRY(queue, hal->ah_capabilities.cap_queues.q_tx_num);

        /*
         * Set the transmit queue descriptor pointer for the selected queue
         * (this won't work if the queue is still active)
         */
        if (AR5K_REG_READ_Q(AR5K_AR5211_QCU_TXE, queue))
                return (AH_FALSE);

        AR5K_REG_WRITE(AR5K_AR5211_QCU_TXDP(queue), phys_addr);

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_tx_start(hal, queue)
        struct ath_hal *hal;
        u_int queue;
{
        AR5K_ASSERT_ENTRY(queue, hal->ah_capabilities.cap_queues.q_tx_num);

        /* Return if queue is disabled */
        if (AR5K_REG_READ_Q(AR5K_AR5211_QCU_TXD, queue))
                return (AH_FALSE);

        /* Start queue */
        AR5K_REG_WRITE_Q(AR5K_AR5211_QCU_TXE, queue);

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_stop_tx_dma(hal, queue)
        struct ath_hal *hal;
        u_int queue;
{
        int i = 100, pending;

        AR5K_ASSERT_ENTRY(queue, hal->ah_capabilities.cap_queues.q_tx_num);

        /*
         * Schedule TX disable and wait until queue is empty
         */
        AR5K_REG_WRITE_Q(AR5K_AR5211_QCU_TXD, queue);

        do {
                pending = AR5K_REG_READ(AR5K_AR5211_QCU_STS(queue)) &
                     AR5K_AR5211_QCU_STS_FRMPENDCNT;
                delay(100);
        } while (--i && pending);

        /* Clear register */
        AR5K_REG_WRITE(AR5K_AR5211_QCU_TXD, 0);

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_setup_tx_desc(hal, desc, packet_length, header_length, type,
    tx_power, tx_rate0, tx_tries0, key_index, antenna_mode, flags, rtscts_rate,
    rtscts_duration)
        struct ath_hal *hal;
        struct ath_desc *desc;
        u_int packet_length;
        u_int header_length;
        HAL_PKT_TYPE type;
        u_int tx_power;
        u_int tx_rate0;
        u_int tx_tries0;
        u_int key_index;
        u_int antenna_mode;
        u_int flags;
        u_int rtscts_rate;
        u_int rtscts_duration;
{
        struct ar5k_ar5211_tx_desc *tx_desc;

        tx_desc = (struct ar5k_ar5211_tx_desc*)&desc->ds_ctl0;

        /*
         * Validate input
         */
        if (tx_tries0 == 0)
                return (AH_FALSE);

        if ((tx_desc->tx_control_0 = (packet_length &
            AR5K_AR5211_DESC_TX_CTL0_FRAME_LEN)) != packet_length)
                return (AH_FALSE);

        tx_desc->tx_control_0 |=
            AR5K_REG_SM(tx_rate0, AR5K_AR5211_DESC_TX_CTL0_XMIT_RATE) |
            AR5K_REG_SM(antenna_mode, AR5K_AR5211_DESC_TX_CTL0_ANT_MODE_XMIT);
        tx_desc->tx_control_1 =
            AR5K_REG_SM(type, AR5K_AR5211_DESC_TX_CTL1_FRAME_TYPE);

#define _TX_FLAGS(_c, _flag)                                            \
        if (flags & HAL_TXDESC_##_flag)                                 \
                tx_desc->tx_control_##_c |=                             \
                        AR5K_AR5211_DESC_TX_CTL##_c##_##_flag

        _TX_FLAGS(0, CLRDMASK);
        _TX_FLAGS(0, VEOL);
        _TX_FLAGS(0, INTREQ);
        _TX_FLAGS(0, RTSENA);
        _TX_FLAGS(1, NOACK);

#undef _TX_FLAGS

        /*
         * WEP crap
         */
        if (key_index != HAL_TXKEYIX_INVALID) {
                tx_desc->tx_control_0 |=
                    AR5K_AR5211_DESC_TX_CTL0_ENCRYPT_KEY_VALID;
                tx_desc->tx_control_1 |=
                    AR5K_REG_SM(key_index,
                    AR5K_AR5211_DESC_TX_CTL1_ENCRYPT_KEY_INDEX);
        }

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_fill_tx_desc(hal, desc, segment_length, first_segment, last_segment)
        struct ath_hal *hal;
        struct ath_desc *desc;
        u_int segment_length;
        HAL_BOOL first_segment;
        HAL_BOOL last_segment;
{
        struct ar5k_ar5211_tx_desc *tx_desc;

        tx_desc = (struct ar5k_ar5211_tx_desc*)&desc->ds_ctl0;

        /* Clear status descriptor */
        bzero(desc->ds_hw, sizeof(desc->ds_hw));

        /* Validate segment length and initialize the descriptor */
        if ((tx_desc->tx_control_1 = (segment_length &
            AR5K_AR5211_DESC_TX_CTL1_BUF_LEN)) != segment_length)
                return (AH_FALSE);

        if (first_segment != AH_TRUE)
                tx_desc->tx_control_0 &= ~AR5K_AR5211_DESC_TX_CTL0_FRAME_LEN;

        if (last_segment != AH_TRUE)
                tx_desc->tx_control_1 |= AR5K_AR5211_DESC_TX_CTL1_MORE;

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_setup_xtx_desc(hal, desc, tx_rate1, tx_tries1, tx_rate2, tx_tries2,
    tx_rate3, tx_tries3)
        struct ath_hal *hal;
        struct ath_desc *desc;
        u_int tx_rate1;
        u_int tx_tries1;
        u_int tx_rate2;
        u_int tx_tries2;
        u_int tx_rate3;
        u_int tx_tries3;
{
        return (AH_FALSE);
}

HAL_STATUS
ar5k_ar5211_proc_tx_desc(hal, desc)
        struct ath_hal *hal;
        struct ath_desc *desc;
{
        struct ar5k_ar5211_tx_status *tx_status;
        struct ar5k_ar5211_tx_desc *tx_desc;

        tx_desc = (struct ar5k_ar5211_tx_desc*)&desc->ds_ctl0;
        tx_status = (struct ar5k_ar5211_tx_status*)&desc->ds_hw[0];

        /* No frame has been send or error */
        if ((tx_status->tx_status_1 & AR5K_AR5211_DESC_TX_STATUS1_DONE) == 0)
                return (HAL_EINPROGRESS);

        /*
         * Get descriptor status
         */
        desc->ds_us.tx.ts_tstamp =
            AR5K_REG_MS(tx_status->tx_status_0,
            AR5K_AR5211_DESC_TX_STATUS0_SEND_TIMESTAMP);
        desc->ds_us.tx.ts_shortretry =
            AR5K_REG_MS(tx_status->tx_status_0,
            AR5K_AR5211_DESC_TX_STATUS0_RTS_FAIL_COUNT);
        desc->ds_us.tx.ts_longretry =
            AR5K_REG_MS(tx_status->tx_status_0,
            AR5K_AR5211_DESC_TX_STATUS0_DATA_FAIL_COUNT);
        desc->ds_us.tx.ts_seqnum =
            AR5K_REG_MS(tx_status->tx_status_1,
            AR5K_AR5211_DESC_TX_STATUS1_SEQ_NUM);
        desc->ds_us.tx.ts_rssi =
            AR5K_REG_MS(tx_status->tx_status_1,
            AR5K_AR5211_DESC_TX_STATUS1_ACK_SIG_STRENGTH);
        desc->ds_us.tx.ts_antenna = 1;
        desc->ds_us.tx.ts_status = 0;
        desc->ds_us.tx.ts_tstamp =
            AR5K_REG_MS(tx_desc->tx_control_0,
            AR5K_AR5211_DESC_TX_CTL0_XMIT_RATE);

        if ((tx_status->tx_status_0 &
            AR5K_AR5211_DESC_TX_STATUS0_FRAME_XMIT_OK) == 0) {
                if (tx_status->tx_status_0 &
                    AR5K_AR5211_DESC_TX_STATUS0_EXCESSIVE_RETRIES)
                        desc->ds_us.tx.ts_status |= HAL_TXERR_XRETRY;

                if (tx_status->tx_status_0 &
                    AR5K_AR5211_DESC_TX_STATUS0_FIFO_UNDERRUN)
                        desc->ds_us.tx.ts_status |= HAL_TXERR_FIFO;

                if (tx_status->tx_status_0 &
                    AR5K_AR5211_DESC_TX_STATUS0_FILTERED)
                        desc->ds_us.tx.ts_status |= HAL_TXERR_FILT;
        }

        return (HAL_OK);
}

HAL_BOOL
ar5k_ar5211_has_veol(hal)
        struct ath_hal *hal;
{
        return (AH_TRUE);
}

/*
 * Receive functions
 */

u_int32_t
ar5k_ar5211_get_rx_buf(hal)
        struct ath_hal *hal;
{
        return (AR5K_REG_READ(AR5K_AR5211_RXDP));
}

void
ar5k_ar5211_put_rx_buf(hal, phys_addr)
        struct ath_hal *hal;
        u_int32_t phys_addr;
{
        AR5K_REG_WRITE(AR5K_AR5211_RXDP, phys_addr);
}

void
ar5k_ar5211_start_rx(hal)
        struct ath_hal *hal;
{
        AR5K_REG_WRITE(AR5K_AR5211_CR, AR5K_AR5211_CR_RXE);
}

HAL_BOOL
ar5k_ar5211_stop_rx_dma(hal)
        struct ath_hal *hal;
{
        int i;

        AR5K_REG_WRITE(AR5K_AR5211_CR, AR5K_AR5211_CR_RXD);

        /*
         * It may take some time to disable the DMA receive unit
         */
        for (i = 2000;
             i > 0 && (AR5K_REG_READ(AR5K_AR5211_CR) & AR5K_AR5211_CR_RXE) != 0;
             i--)
                AR5K_DELAY(10);

        return (i > 0 ? AH_TRUE : AH_FALSE);
}

void
ar5k_ar5211_start_rx_pcu(hal)
        struct ath_hal *hal;
{
        AR5K_REG_DISABLE_BITS(AR5K_AR5211_DIAG_SW, AR5K_AR5211_DIAG_SW_DIS_RX);
}

void
ar5k_ar5211_stop_pcu_recv(hal)
        struct ath_hal *hal;
{
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_DIAG_SW, AR5K_AR5211_DIAG_SW_DIS_RX);
}

void
ar5k_ar5211_set_mcast_filter(hal, filter0, filter1)
        struct ath_hal *hal;
        u_int32_t filter0;
        u_int32_t filter1;
{
        /* Set the multicat filter */
        AR5K_REG_WRITE(AR5K_AR5211_MCAST_FIL0, filter0);
        AR5K_REG_WRITE(AR5K_AR5211_MCAST_FIL1, filter1);
}

HAL_BOOL
ar5k_ar5211_set_mcast_filterindex(hal, index)
        struct ath_hal *hal;
        u_int32_t index;
{
        if (index >= 64) {
            return (AH_FALSE);
        } else if (index >= 32) {
            AR5K_REG_ENABLE_BITS(AR5K_AR5211_MCAST_FIL1,
                (1 << (index - 32)));
        } else {
            AR5K_REG_ENABLE_BITS(AR5K_AR5211_MCAST_FIL0,
                (1 << index));
        }

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_clear_mcast_filter_idx(hal, index)
        struct ath_hal *hal;
        u_int32_t index;
{

        if (index >= 64) {
            return (AH_FALSE);
        } else if (index >= 32) {
            AR5K_REG_DISABLE_BITS(AR5K_AR5211_MCAST_FIL1,
                (1 << (index - 32)));
        } else {
            AR5K_REG_DISABLE_BITS(AR5K_AR5211_MCAST_FIL0,
                (1 << index));
        }

        return (AH_TRUE);
}

u_int32_t
ar5k_ar5211_get_rx_filter(hal)
        struct ath_hal *hal;
{
        return (AR5K_REG_READ(AR5K_AR5211_RX_FILTER));
}

void
ar5k_ar5211_set_rx_filter(hal, filter)
        struct ath_hal *hal;
        u_int32_t filter;
{
        AR5K_REG_WRITE(AR5K_AR5211_RX_FILTER, filter);
}

HAL_BOOL
ar5k_ar5211_setup_rx_desc(hal, desc, size, flags)
        struct ath_hal *hal;
        struct ath_desc *desc;
        u_int32_t size;
        u_int flags;
{
        struct ar5k_ar5211_rx_desc *rx_desc;

        rx_desc = (struct ar5k_ar5211_rx_desc*)&desc->ds_ctl0;

        if ((rx_desc->rx_control_1 = (size &
            AR5K_AR5211_DESC_RX_CTL1_BUF_LEN)) != size)
                return (AH_FALSE);

        if (flags & HAL_RXDESC_INTREQ)
                rx_desc->rx_control_1 |= AR5K_AR5211_DESC_RX_CTL1_INTREQ;

        return (AH_TRUE);
}

HAL_STATUS
ar5k_ar5211_proc_rx_desc(hal, desc, phys_addr, next)
        struct ath_hal *hal;
        struct ath_desc *desc;
        u_int32_t phys_addr;
        struct ath_desc *next;
{
        struct ar5k_ar5211_rx_status *rx_status;

        rx_status = (struct ar5k_ar5211_rx_status*)&desc->ds_hw[0];

        /* No frame received / not ready */
        if ((rx_status->rx_status_1 & AR5K_AR5211_DESC_RX_STATUS1_DONE) == 0)
                return (HAL_EINPROGRESS);

        /*
         * Frame receive status
         */
        desc->ds_us.rx.rs_datalen = rx_status->rx_status_0 &
            AR5K_AR5211_DESC_RX_STATUS0_DATA_LEN;
        desc->ds_us.rx.rs_rssi =
            AR5K_REG_MS(rx_status->rx_status_0,
            AR5K_AR5211_DESC_RX_STATUS0_RECEIVE_SIGNAL);
        desc->ds_us.rx.rs_rate =
            AR5K_REG_MS(rx_status->rx_status_0,
            AR5K_AR5211_DESC_RX_STATUS0_RECEIVE_RATE);
        desc->ds_us.rx.rs_antenna = rx_status->rx_status_0 &
            AR5K_AR5211_DESC_RX_STATUS0_RECEIVE_ANTENNA;
        desc->ds_us.rx.rs_more = rx_status->rx_status_0 &
            AR5K_AR5211_DESC_RX_STATUS0_MORE;
        desc->ds_us.rx.rs_tstamp =
            AR5K_REG_MS(rx_status->rx_status_1,
            AR5K_AR5211_DESC_RX_STATUS1_RECEIVE_TIMESTAMP);
        desc->ds_us.rx.rs_status = 0;

        /*
         * Key table status
         */
        if (rx_status->rx_status_1 &
            AR5K_AR5211_DESC_RX_STATUS1_KEY_INDEX_VALID) {
                desc->ds_us.rx.rs_keyix =
                    AR5K_REG_MS(rx_status->rx_status_1,
                    AR5K_AR5211_DESC_RX_STATUS1_KEY_INDEX);
        } else {
                desc->ds_us.rx.rs_keyix = HAL_RXKEYIX_INVALID;
        }

        /*
         * Receive/descriptor errors
         */
        if ((rx_status->rx_status_1 &
            AR5K_AR5211_DESC_RX_STATUS1_FRAME_RECEIVE_OK) == 0) {
                if (rx_status->rx_status_1 &
                    AR5K_AR5211_DESC_RX_STATUS1_CRC_ERROR)
                        desc->ds_us.rx.rs_status |= HAL_RXERR_CRC;

                if (rx_status->rx_status_1 &
                    AR5K_AR5211_DESC_RX_STATUS1_PHY_ERROR) {
                        desc->ds_us.rx.rs_status |= HAL_RXERR_PHY;
                        desc->ds_us.rx.rs_phyerr =
                            AR5K_REG_MS(rx_status->rx_status_1,
                            AR5K_AR5211_DESC_RX_STATUS1_PHY_ERROR);
                }

                if (rx_status->rx_status_1 &
                    AR5K_AR5211_DESC_RX_STATUS1_DECRYPT_CRC_ERROR)
                        desc->ds_us.rx.rs_status |= HAL_RXERR_DECRYPT;
        }

        return (HAL_OK);
}

void
ar5k_ar5211_set_rx_signal(hal)
        struct ath_hal *hal;
{
        /* Signal state monitoring is not yet supported */
}

/*
 * Misc functions
 */

void
ar5k_ar5211_dump_state(hal)
        struct ath_hal *hal;
{
#ifdef AR5K_DEBUG
#define AR5K_PRINT_REGISTER(_x)                                         \
        printf("(%s: %08x) ", #_x, AR5K_REG_READ(AR5K_AR5211_##_x));

        printf("MAC registers:\n");
        AR5K_PRINT_REGISTER(CR);
        AR5K_PRINT_REGISTER(CFG);
        AR5K_PRINT_REGISTER(IER);
        AR5K_PRINT_REGISTER(RTSD0);
        AR5K_PRINT_REGISTER(TXCFG);
        AR5K_PRINT_REGISTER(RXCFG);
        AR5K_PRINT_REGISTER(RXJLA);
        AR5K_PRINT_REGISTER(MIBC);
        AR5K_PRINT_REGISTER(TOPS);
        AR5K_PRINT_REGISTER(RXNOFRM);
        AR5K_PRINT_REGISTER(RPGTO);
        AR5K_PRINT_REGISTER(RFCNT);
        AR5K_PRINT_REGISTER(MISC);
        AR5K_PRINT_REGISTER(PISR);
        AR5K_PRINT_REGISTER(SISR0);
        AR5K_PRINT_REGISTER(SISR1);
        AR5K_PRINT_REGISTER(SISR3);
        AR5K_PRINT_REGISTER(SISR4);
        AR5K_PRINT_REGISTER(QCU_TXE);
        AR5K_PRINT_REGISTER(QCU_TXD);
        AR5K_PRINT_REGISTER(DCU_GBL_IFS_SIFS);
        AR5K_PRINT_REGISTER(DCU_GBL_IFS_SLOT);
        AR5K_PRINT_REGISTER(DCU_FP);
        AR5K_PRINT_REGISTER(DCU_TXP);
        AR5K_PRINT_REGISTER(DCU_TX_FILTER);
        AR5K_PRINT_REGISTER(RC);
        AR5K_PRINT_REGISTER(SCR);
        AR5K_PRINT_REGISTER(INTPEND);
        AR5K_PRINT_REGISTER(PCICFG);
        AR5K_PRINT_REGISTER(GPIOCR);
        AR5K_PRINT_REGISTER(GPIODO);
        AR5K_PRINT_REGISTER(SREV);
        AR5K_PRINT_REGISTER(EEPROM_BASE);
        AR5K_PRINT_REGISTER(EEPROM_DATA);
        AR5K_PRINT_REGISTER(EEPROM_CMD);
        AR5K_PRINT_REGISTER(EEPROM_CFG);
        AR5K_PRINT_REGISTER(PCU_MIN);
        AR5K_PRINT_REGISTER(STA_ID0);
        AR5K_PRINT_REGISTER(STA_ID1);
        AR5K_PRINT_REGISTER(BSS_ID0);
        AR5K_PRINT_REGISTER(SLOT_TIME);
        AR5K_PRINT_REGISTER(TIME_OUT);
        AR5K_PRINT_REGISTER(RSSI_THR);
        AR5K_PRINT_REGISTER(BEACON);
        AR5K_PRINT_REGISTER(CFP_PERIOD);
        AR5K_PRINT_REGISTER(TIMER0);
        AR5K_PRINT_REGISTER(TIMER2);
        AR5K_PRINT_REGISTER(TIMER3);
        AR5K_PRINT_REGISTER(CFP_DUR);
        AR5K_PRINT_REGISTER(MCAST_FIL0);
        AR5K_PRINT_REGISTER(MCAST_FIL1);
        AR5K_PRINT_REGISTER(DIAG_SW);
        AR5K_PRINT_REGISTER(TSF_U32);
        AR5K_PRINT_REGISTER(ADDAC_TEST);
        AR5K_PRINT_REGISTER(DEFAULT_ANTENNA);
        AR5K_PRINT_REGISTER(LAST_TSTP);
        AR5K_PRINT_REGISTER(NAV);
        AR5K_PRINT_REGISTER(RTS_OK);
        AR5K_PRINT_REGISTER(ACK_FAIL);
        AR5K_PRINT_REGISTER(FCS_FAIL);
        AR5K_PRINT_REGISTER(BEACON_CNT);
        AR5K_PRINT_REGISTER(KEYTABLE_0);
        printf("\n");

        printf("PHY registers:\n");
        AR5K_PRINT_REGISTER(PHY_TURBO);
        AR5K_PRINT_REGISTER(PHY_AGC);
        AR5K_PRINT_REGISTER(PHY_CHIP_ID);
        AR5K_PRINT_REGISTER(PHY_AGCCTL);
        AR5K_PRINT_REGISTER(PHY_NF);
        AR5K_PRINT_REGISTER(PHY_RX_DELAY);
        AR5K_PRINT_REGISTER(PHY_IQ);
        AR5K_PRINT_REGISTER(PHY_PAPD_PROBE);
        AR5K_PRINT_REGISTER(PHY_FC);
        AR5K_PRINT_REGISTER(PHY_RADAR);
        AR5K_PRINT_REGISTER(PHY_ANT_SWITCH_TABLE_0);
        AR5K_PRINT_REGISTER(PHY_ANT_SWITCH_TABLE_1);
        printf("\n");
#endif
}

HAL_BOOL
ar5k_ar5211_get_diag_state(hal, id, device, size)
        struct ath_hal *hal;
        int id;
        void **device;
        u_int *size;

{
        /*
         * We'll ignore this right now. This seems to be some kind of an obscure
         * debugging interface for the binary-only HAL.
         */
        return (AH_FALSE);
}

void
ar5k_ar5211_get_lladdr(hal, mac)
        struct ath_hal *hal;
        u_int8_t *mac;
{
        bcopy(hal->ah_sta_id, mac, IEEE80211_ADDR_LEN);
}

HAL_BOOL
ar5k_ar5211_set_lladdr(hal, mac)
        struct ath_hal *hal;
        const u_int8_t *mac;
{
        u_int32_t low_id, high_id;

        /* Set new station ID */
        bcopy(mac, hal->ah_sta_id, IEEE80211_ADDR_LEN);

        bcopy(mac, &low_id, 4);
        bcopy(mac + 4, &high_id, 2);
        high_id = 0x0000ffff & high_id;

        AR5K_REG_WRITE(AR5K_AR5211_STA_ID0, low_id);
        AR5K_REG_WRITE(AR5K_AR5211_STA_ID1, high_id);

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_set_regdomain(hal, regdomain, status)
        struct ath_hal *hal;
        u_int16_t regdomain;
        HAL_STATUS *status;

{
        ieee80211_regdomain_t ieee_regdomain;

        ieee_regdomain = ar5k_regdomain_to_ieee(regdomain);

        if (ar5k_eeprom_regulation_domain(hal, AH_TRUE,
                &ieee_regdomain) == AH_TRUE) {
                *status = HAL_OK;
                return (AH_TRUE);
        }

        *status = EIO;

        return (AH_FALSE);
}

void
ar5k_ar5211_set_ledstate(hal, state)
        struct ath_hal *hal;
        HAL_LED_STATE state;
{
        u_int32_t led;

        AR5K_REG_DISABLE_BITS(AR5K_AR5211_PCICFG,
            AR5K_AR5211_PCICFG_LEDMODE |  AR5K_AR5211_PCICFG_LED);

        /*
         * Some blinking values, define at your wish
         */
        switch (state) {
        case IEEE80211_S_SCAN:
        case IEEE80211_S_AUTH:
                led = AR5K_AR5211_PCICFG_LEDMODE_PROP |
                    AR5K_AR5211_PCICFG_LED_PEND;
                break;

        case IEEE80211_S_INIT:
                led = AR5K_AR5211_PCICFG_LEDMODE_PROP |
                    AR5K_AR5211_PCICFG_LED_NONE;
                break;

        case IEEE80211_S_ASSOC:
        case IEEE80211_S_RUN:
                led = AR5K_AR5211_PCICFG_LEDMODE_PROP |
                    AR5K_AR5211_PCICFG_LED_ASSOC;
                break;

        default:
                led = AR5K_AR5211_PCICFG_LEDMODE_PROM |
                    AR5K_AR5211_PCICFG_LED_NONE;
                break;
        }

        AR5K_REG_ENABLE_BITS(AR5K_AR5211_PCICFG, led);
}

void
ar5k_ar5211_set_associd(hal, bssid, assoc_id, tim_offset)
        struct ath_hal *hal;
        const u_int8_t *bssid;
        u_int16_t assoc_id;
        u_int16_t tim_offset;
{
        u_int32_t low_id, high_id;

        /*
         * Set BSSID which triggers the "SME Join" operation
         */
        bcopy(bssid, &low_id, 4);
        bcopy(bssid + 4, &high_id, 2);
        AR5K_REG_WRITE(AR5K_AR5211_BSS_ID0, low_id);
        AR5K_REG_WRITE(AR5K_AR5211_BSS_ID1, high_id |
            ((assoc_id & 0x3fff) << AR5K_AR5211_BSS_ID1_AID_S));
        bcopy(bssid, hal->ah_bssid, IEEE80211_ADDR_LEN);

        if (assoc_id == 0) {
                ar5k_ar5211_disable_pspoll(hal);
                return;
        }

        AR5K_REG_WRITE(AR5K_AR5211_BEACON,
            (AR5K_REG_READ(AR5K_AR5211_BEACON) &
            ~AR5K_AR5211_BEACON_TIM) |
            (((tim_offset ? tim_offset + 4 : 0) <<
            AR5K_AR5211_BEACON_TIM_S) &
            AR5K_AR5211_BEACON_TIM));

        ar5k_ar5211_enable_pspoll(hal, NULL, 0);
}

HAL_BOOL
ar5k_ar5211_set_gpio_output(hal, gpio)
        struct ath_hal *hal;
        u_int32_t gpio;
{
        if (gpio > AR5K_AR5211_NUM_GPIO)
                return (AH_FALSE);

        AR5K_REG_WRITE(AR5K_AR5211_GPIOCR,
            (AR5K_REG_READ(AR5K_AR5211_GPIOCR) &~ AR5K_AR5211_GPIOCR_ALL(gpio))
            | AR5K_AR5211_GPIOCR_ALL(gpio));

        return (AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_set_gpio_input(hal, gpio)
        struct ath_hal *hal;
        u_int32_t gpio;
{
        if (gpio > AR5K_AR5211_NUM_GPIO)
                return (AH_FALSE);

        AR5K_REG_WRITE(AR5K_AR5211_GPIOCR,
            (AR5K_REG_READ(AR5K_AR5211_GPIOCR) &~ AR5K_AR5211_GPIOCR_ALL(gpio))
            | AR5K_AR5211_GPIOCR_NONE(gpio));

        return (AH_TRUE);
}

u_int32_t
ar5k_ar5211_get_gpio(hal, gpio)
        struct ath_hal *hal;
        u_int32_t gpio;
{
        if (gpio > AR5K_AR5211_NUM_GPIO)
                return (0xffffffff);

        /* GPIO input magic */
        return (((AR5K_REG_READ(AR5K_AR5211_GPIODI) &
            AR5K_AR5211_GPIODI_M) >> gpio) & 0x1);
}

HAL_BOOL
ar5k_ar5211_set_gpio(hal, gpio, val)
        struct ath_hal *hal;
        u_int32_t gpio;
        u_int32_t val;
{
        u_int32_t data;

        if (gpio > AR5K_AR5211_NUM_GPIO)
                return (0xffffffff);

        /* GPIO output magic */
        data =  AR5K_REG_READ(AR5K_AR5211_GPIODO);

        data &= ~(1 << gpio);
        data |= (val&1) << gpio;

        AR5K_REG_WRITE(AR5K_AR5211_GPIODO, data);

        return (AH_TRUE);
}

void
ar5k_ar5211_set_gpio_intr(hal, gpio, interrupt_level)
        struct ath_hal *hal;
        u_int gpio;
        u_int32_t interrupt_level;
{
        u_int32_t data;

        if (gpio > AR5K_AR5211_NUM_GPIO)
                return;

        /*
         * Set the GPIO interrupt
         */
        data = (AR5K_REG_READ(AR5K_AR5211_GPIOCR) &
            ~(AR5K_AR5211_GPIOCR_INT_SEL(gpio) | AR5K_AR5211_GPIOCR_INT_SELH |
            AR5K_AR5211_GPIOCR_INT_ENA | AR5K_AR5211_GPIOCR_ALL(gpio))) |
            (AR5K_AR5211_GPIOCR_INT_SEL(gpio) | AR5K_AR5211_GPIOCR_INT_ENA);

        AR5K_REG_WRITE(AR5K_AR5211_GPIOCR,
            interrupt_level ? data : (data | AR5K_AR5211_GPIOCR_INT_SELH));

        hal->ah_imr |= AR5K_AR5211_PIMR_GPIO;

        /* Enable GPIO interrupts */
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_PIMR, AR5K_AR5211_PIMR_GPIO);
}

u_int32_t
ar5k_ar5211_get_tsf32(hal)
        struct ath_hal *hal;
{
        return (AR5K_REG_READ(AR5K_AR5211_TSF_L32));
}

u_int64_t
ar5k_ar5211_get_tsf64(hal)
        struct ath_hal *hal;
{
        u_int64_t tsf = AR5K_REG_READ(AR5K_AR5211_TSF_U32);

        return (AR5K_REG_READ(AR5K_AR5211_TSF_L32) | (tsf << 32));
}

void
ar5k_ar5211_reset_tsf(hal)
        struct ath_hal *hal;
{
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_BEACON,
            AR5K_AR5211_BEACON_RESET_TSF);
}

u_int16_t
ar5k_ar5211_get_regdomain(hal)
        struct ath_hal *hal;
{
        return (ar5k_get_regdomain(hal));
}

HAL_BOOL
ar5k_ar5211_detect_card_present(hal)
        struct ath_hal *hal;
{
        u_int16_t magic;

        /*
         * Checking the EEPROM's magic value could be an indication
         * if the card is still present. I didn't find another suitable
         * way to do this.
         */
        if (ar5k_ar5211_eeprom_read(hal, AR5K_EEPROM_MAGIC, &magic) != 0)
                return (AH_FALSE);

        return (magic == AR5K_EEPROM_MAGIC_VALUE ? AH_TRUE : AH_FALSE);
}

void
ar5k_ar5211_update_mib_counters(hal, statistics)
        struct ath_hal *hal;
        HAL_MIB_STATS *statistics;
{
        statistics->ackrcv_bad += AR5K_REG_READ(AR5K_AR5211_ACK_FAIL);
        statistics->rts_bad += AR5K_REG_READ(AR5K_AR5211_RTS_FAIL);
        statistics->rts_good += AR5K_REG_READ(AR5K_AR5211_RTS_OK);
        statistics->fcs_bad += AR5K_REG_READ(AR5K_AR5211_FCS_FAIL);
        statistics->beacons += AR5K_REG_READ(AR5K_AR5211_BEACON_CNT);
}

HAL_RFGAIN
ar5k_ar5211_get_rf_gain(hal)
        struct ath_hal *hal;
{
        return (HAL_RFGAIN_INACTIVE);
}

HAL_BOOL
ar5k_ar5211_set_slot_time(hal, slot_time)
        struct ath_hal *hal;
        u_int slot_time;
{
        if (slot_time < HAL_SLOT_TIME_9 || slot_time > HAL_SLOT_TIME_MAX)
                return (AH_FALSE);

        AR5K_REG_WRITE(AR5K_AR5211_DCU_GBL_IFS_SLOT, slot_time);

        return (AH_TRUE);
}

u_int
ar5k_ar5211_get_slot_time(hal)
        struct ath_hal *hal;
{
        return (AR5K_REG_READ(AR5K_AR5211_DCU_GBL_IFS_SLOT) & 0xffff);
}

HAL_BOOL
ar5k_ar5211_set_ack_timeout(hal, timeout)
        struct ath_hal *hal;
        u_int timeout;
{
        if (ar5k_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_AR5211_TIME_OUT_ACK),
            hal->ah_turbo) <= timeout)
                return (AH_FALSE);

        AR5K_REG_WRITE_BITS(AR5K_AR5211_TIME_OUT, AR5K_AR5211_TIME_OUT_ACK,
            ar5k_htoclock(timeout, hal->ah_turbo));

        return (AH_TRUE);
}

u_int
ar5k_ar5211_get_ack_timeout(hal)
        struct ath_hal *hal;
{
        return (ar5k_clocktoh(AR5K_REG_MS(AR5K_REG_READ(AR5K_AR5211_TIME_OUT),
            AR5K_AR5211_TIME_OUT_ACK), hal->ah_turbo));
}

HAL_BOOL
ar5k_ar5211_set_cts_timeout(hal, timeout)
        struct ath_hal *hal;
        u_int timeout;
{
        if (ar5k_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_AR5211_TIME_OUT_CTS),
            hal->ah_turbo) <= timeout)
                return (AH_FALSE);

        AR5K_REG_WRITE_BITS(AR5K_AR5211_TIME_OUT, AR5K_AR5211_TIME_OUT_CTS,
            ar5k_htoclock(timeout, hal->ah_turbo));

        return (AH_TRUE);
}

u_int
ar5k_ar5211_get_cts_timeout(hal)
        struct ath_hal *hal;
{
        return (ar5k_clocktoh(AR5K_REG_MS(AR5K_REG_READ(AR5K_AR5211_TIME_OUT),
            AR5K_AR5211_TIME_OUT_CTS), hal->ah_turbo));
}

/*
 * Key table (WEP) functions
 */

HAL_BOOL
ar5k_ar5211_is_cipher_supported(hal, cipher)
        struct ath_hal *hal;
        HAL_CIPHER cipher;
{
        /*
         * The AR5211 only supports WEP
         */
        if (cipher == HAL_CIPHER_WEP)
                return (AH_TRUE);

        return (AH_FALSE);
}

u_int32_t
ar5k_ar5211_get_keycache_size(hal)
        struct ath_hal *hal;
{
        return (AR5K_AR5211_KEYCACHE_SIZE);
}

HAL_BOOL
ar5k_ar5211_reset_key(hal, entry)
        struct ath_hal *hal;
        u_int16_t entry;
{
        int i;

        AR5K_ASSERT_ENTRY(entry, AR5K_AR5211_KEYTABLE_SIZE);

        for (i = 0; i < AR5K_AR5211_KEYCACHE_SIZE; i++)
                AR5K_REG_WRITE(AR5K_AR5211_KEYTABLE_OFF(entry, i), 0);

        return (AH_FALSE);
}

HAL_BOOL
ar5k_ar5211_is_key_valid(hal, entry)
        struct ath_hal *hal;
        u_int16_t entry;
{
        AR5K_ASSERT_ENTRY(entry, AR5K_AR5211_KEYTABLE_SIZE);

        /*
         * Check the validation flag at the end of the entry
         */
        if (AR5K_REG_READ(AR5K_AR5211_KEYTABLE_MAC1(entry)) &
            AR5K_AR5211_KEYTABLE_VALID)
                return (AH_TRUE);

        return (AH_FALSE);
}

HAL_BOOL
ar5k_ar5211_set_key(hal, entry, keyval, mac, xor_notused)
        struct ath_hal *hal;
        u_int16_t entry;
        const HAL_KEYVAL *keyval;
        const u_int8_t *mac;
        int xor_notused;
{
        int i;
        u_int32_t key_v[AR5K_AR5211_KEYCACHE_SIZE - 2];

        AR5K_ASSERT_ENTRY(entry, AR5K_AR5211_KEYTABLE_SIZE);

        bzero(&key_v, sizeof(key_v));

        switch (keyval->wk_len) {
        case AR5K_KEYVAL_LENGTH_40:
                bcopy(keyval->wk_key, &key_v[0], 4);
                bcopy(keyval->wk_key + 4, &key_v[1], 1);
                key_v[5] = AR5K_AR5211_KEYTABLE_TYPE_40;
                break;

        case AR5K_KEYVAL_LENGTH_104:
                bcopy(keyval->wk_key, &key_v[0], 4);
                bcopy(keyval->wk_key + 4, &key_v[1], 2);
                bcopy(keyval->wk_key + 6, &key_v[2], 4);
                bcopy(keyval->wk_key + 10, &key_v[3], 2);
                bcopy(keyval->wk_key + 12, &key_v[4], 1);
                key_v[5] = AR5K_AR5211_KEYTABLE_TYPE_104;
                break;

        case AR5K_KEYVAL_LENGTH_128:
                bcopy(keyval->wk_key, &key_v[0], 4);
                bcopy(keyval->wk_key + 4, &key_v[1], 2);
                bcopy(keyval->wk_key + 6, &key_v[2], 4);
                bcopy(keyval->wk_key + 10, &key_v[3], 2);
                bcopy(keyval->wk_key + 12, &key_v[4], 4);
                key_v[5] = AR5K_AR5211_KEYTABLE_TYPE_128;
                break;

        default:
                /* Unsupported key length (not WEP40/104/128) */
                return (AH_FALSE);
        }

        for (i = 0; i < AR5K_ELEMENTS(key_v); i++)
                AR5K_REG_WRITE(AR5K_AR5211_KEYTABLE_OFF(entry, i), key_v[i]);

        return (ar5k_ar5211_set_key_lladdr(hal, entry, mac));
}

HAL_BOOL
ar5k_ar5211_set_key_lladdr(hal, entry, mac)
        struct ath_hal *hal;
        u_int16_t entry;
        const u_int8_t *mac;
{
        u_int32_t low_id, high_id;
        const u_int8_t *mac_v;

        /*
         * Invalid entry (key table overflow)
         */
        AR5K_ASSERT_ENTRY(entry, AR5K_AR5211_KEYTABLE_SIZE);

        /* MAC may be NULL if it's a broadcast key */
        mac_v = mac == NULL ? etherbroadcastaddr : mac;

        bcopy(mac_v, &low_id, 4);
        bcopy(mac_v + 4, &high_id, 2);
        high_id |= AR5K_AR5211_KEYTABLE_VALID;

        AR5K_REG_WRITE(AR5K_AR5211_KEYTABLE_MAC0(entry), low_id);
        AR5K_REG_WRITE(AR5K_AR5211_KEYTABLE_MAC1(entry), high_id);

        return (AH_TRUE);
}

/*
 * Power management functions
 */

HAL_BOOL
ar5k_ar5211_set_power(hal, mode, set_chip, sleep_duration)
        struct ath_hal *hal;
        HAL_POWER_MODE mode;
        HAL_BOOL set_chip;
        u_int16_t sleep_duration;
{
        u_int32_t staid;
        int i;

        staid = AR5K_REG_READ(AR5K_AR5211_STA_ID1);

        switch (mode) {
        case HAL_PM_AUTO:
                staid &= ~AR5K_AR5211_STA_ID1_DEFAULT_ANTENNA;
                /* fallthrough */
        case HAL_PM_NETWORK_SLEEP:
                if (set_chip == AH_TRUE) {
                        AR5K_REG_WRITE(AR5K_AR5211_SCR,
                            AR5K_AR5211_SCR_SLE | sleep_duration);
                }
                staid |= AR5K_AR5211_STA_ID1_PWR_SV;
                break;

        case HAL_PM_FULL_SLEEP:
                if (set_chip == AH_TRUE) {
                        AR5K_REG_WRITE(AR5K_AR5211_SCR,
                            AR5K_AR5211_SCR_SLE_SLP);
                }
                staid |= AR5K_AR5211_STA_ID1_PWR_SV;
                break;

        case HAL_PM_AWAKE:
                if (set_chip == AH_FALSE)
                        goto commit;

                AR5K_REG_WRITE(AR5K_AR5211_SCR, AR5K_AR5211_SCR_SLE_WAKE);

                for (i = 5000; i > 0; i--) {
                        /* Check if the AR5211 did wake up */
                        if ((AR5K_REG_READ(AR5K_AR5211_PCICFG) &
                            AR5K_AR5211_PCICFG_SPWR_DN) == 0)
                                break;

                        /* Wait a bit and retry */
                        AR5K_DELAY(200);
                        AR5K_REG_WRITE(AR5K_AR5211_SCR,
                            AR5K_AR5211_SCR_SLE_WAKE);
                }

                /* Fail if the AR5211 didn't wake up */
                if (i <= 0)
                        return (AH_FALSE);
                
                staid &= ~AR5K_AR5211_STA_ID1_PWR_SV;
                break;

        default:
                return (AH_FALSE);
        }

 commit:
        hal->ah_power_mode = mode;

        AR5K_REG_WRITE(AR5K_AR5211_STA_ID1, staid);

        return (AH_TRUE);
}

HAL_POWER_MODE
ar5k_ar5211_get_power_mode(hal)
        struct ath_hal *hal;
{
        return (hal->ah_power_mode);
}

HAL_BOOL
ar5k_ar5211_query_pspoll_support(hal)
        struct ath_hal *hal;
{
        /* nope */
        return (AH_FALSE);
}

HAL_BOOL
ar5k_ar5211_init_pspoll(hal)
        struct ath_hal *hal;
{
        /*
         * Not used on the AR5211
         */
        return (AH_FALSE);
}

HAL_BOOL
ar5k_ar5211_enable_pspoll(hal, bssid, assoc_id)
        struct ath_hal *hal;
        u_int8_t *bssid;
        u_int16_t assoc_id;
{
        return (AH_FALSE);
}

HAL_BOOL
ar5k_ar5211_disable_pspoll(hal)
        struct ath_hal *hal;
{
        return (AH_FALSE);
}

/*
 * Beacon functions
 */

void
ar5k_ar5211_init_beacon(hal, next_beacon, interval)
        struct ath_hal *hal;
        u_int32_t next_beacon;
        u_int32_t interval;
{
        u_int32_t timer1, timer2, timer3;

        /*
         * Set the additional timers by mode
         */
        switch (hal->ah_op_mode) {
        case HAL_M_STA:
                timer1 = 0x0000ffff;
                timer2 = 0x0007ffff;
                break;

        default:
                timer1 = (next_beacon - AR5K_TUNE_DMA_BEACON_RESP) <<
                    0x00000003;
                timer2 = (next_beacon - AR5K_TUNE_SW_BEACON_RESP) <<
                    0x00000003;
        }

        timer3 = next_beacon +
            (hal->ah_atim_window ? hal->ah_atim_window : 1);

        /*
         * Enable all timers and set the beacon register
         * (next beacon, DMA beacon, software beacon, ATIM window time)
         */
        AR5K_REG_WRITE(AR5K_AR5211_TIMER0, next_beacon);
        AR5K_REG_WRITE(AR5K_AR5211_TIMER1, timer1);
        AR5K_REG_WRITE(AR5K_AR5211_TIMER2, timer2);
        AR5K_REG_WRITE(AR5K_AR5211_TIMER3, timer3);

        AR5K_REG_WRITE(AR5K_AR5211_BEACON, interval &
            (AR5K_AR5211_BEACON_PERIOD | AR5K_AR5211_BEACON_RESET_TSF |
            AR5K_AR5211_BEACON_ENABLE));
}

void
ar5k_ar5211_set_beacon_timers(hal, state, tsf, dtim_count, cfp_count)
        struct ath_hal *hal;
        const HAL_BEACON_STATE *state;
        u_int32_t tsf;
        u_int32_t dtim_count;
        u_int32_t cfp_count;

{
        u_int32_t cfp_period, next_cfp;

        /* Return on an invalid beacon state */
        if (state->bs_interval < 1)
                return;

        /*
         * PCF support?
         */
        if (state->bs_cfp_period > 0) {
                /* Enable CFP mode and set the CFP and timer registers */
                cfp_period = state->bs_cfp_period * state->bs_dtim_period *
                    state->bs_interval;
                next_cfp = (cfp_count * state->bs_dtim_period + dtim_count) *
                    state->bs_interval;

                AR5K_REG_DISABLE_BITS(AR5K_AR5211_STA_ID1,
                    AR5K_AR5211_STA_ID1_DEFAULT_ANTENNA |
                    AR5K_AR5211_STA_ID1_PCF);
                AR5K_REG_WRITE(AR5K_AR5211_CFP_PERIOD, cfp_period);
                AR5K_REG_WRITE(AR5K_AR5211_CFP_DUR, state->bs_cfp_max_duration);
                AR5K_REG_WRITE(AR5K_AR5211_TIMER2,
                    (tsf + (next_cfp == 0 ? cfp_period : next_cfp)) << 3);
        } else {
                /* Disable PCF mode */
                AR5K_REG_DISABLE_BITS(AR5K_AR5211_STA_ID1,
                    AR5K_AR5211_STA_ID1_DEFAULT_ANTENNA |
                    AR5K_AR5211_STA_ID1_PCF);
        }

        /*
         * Enable the beacon timer register
         */
        AR5K_REG_WRITE(AR5K_AR5211_TIMER0, state->bs_next_beacon);

        /*
         * Start the beacon timers
         */
        AR5K_REG_WRITE(AR5K_AR5211_BEACON,
            (AR5K_REG_READ(AR5K_AR5211_BEACON) &~
            (AR5K_AR5211_BEACON_PERIOD | AR5K_AR5211_BEACON_TIM)) |
            AR5K_REG_SM(state->bs_tim_offset ? state->bs_tim_offset + 4 : 0,
            AR5K_AR5211_BEACON_TIM) | AR5K_REG_SM(state->bs_interval,
            AR5K_AR5211_BEACON_PERIOD));

        /*
         * Write new beacon miss threshold, if it appears to be valid
         */
        if ((AR5K_AR5211_RSSI_THR_BMISS >> AR5K_AR5211_RSSI_THR_BMISS_S) <
            state->bs_bmiss_threshold)
                return;

        AR5K_REG_WRITE_BITS(AR5K_AR5211_RSSI_THR_M,
            AR5K_AR5211_RSSI_THR_BMISS, state->bs_bmiss_threshold);
        AR5K_REG_WRITE_BITS(AR5K_AR5211_SCR, AR5K_AR5211_SCR_SLDUR,
            (state->bs_sleepduration - 3) << 3);
}

void
ar5k_ar5211_reset_beacon(hal)
        struct ath_hal *hal;
{
        /*
         * Disable beacon timer
         */
        AR5K_REG_WRITE(AR5K_AR5211_TIMER0, 0);

        /*
         * Disable some beacon register values
         */
        AR5K_REG_DISABLE_BITS(AR5K_AR5211_STA_ID1,
            AR5K_AR5211_STA_ID1_DEFAULT_ANTENNA | AR5K_AR5211_STA_ID1_PCF);
        AR5K_REG_WRITE(AR5K_AR5211_BEACON, AR5K_AR5211_BEACON_PERIOD);
}

HAL_BOOL
ar5k_ar5211_wait_for_beacon(hal, phys_addr)
        struct ath_hal *hal;
        bus_addr_t phys_addr;
{
        HAL_BOOL ret;

        /*
         * Wait for beaconn queue to be done
         */
        ret = ar5k_register_timeout(hal,
            AR5K_AR5211_QCU_STS(HAL_TX_QUEUE_ID_BEACON),
            AR5K_AR5211_QCU_STS_FRMPENDCNT, 0, AH_FALSE);

        if (AR5K_REG_READ_Q(AR5K_AR5211_QCU_TXE, HAL_TX_QUEUE_ID_BEACON))
                return (AH_FALSE);

        return (ret);
}

/*
 * Interrupt handling
 */

HAL_BOOL
ar5k_ar5211_is_intr_pending(hal)
        struct ath_hal *hal;
{
        return (AR5K_REG_READ(AR5K_AR5211_INTPEND) == 0 ? AH_FALSE : AH_TRUE);
}

HAL_BOOL
ar5k_ar5211_get_isr(hal, interrupt_mask)
        struct ath_hal *hal;
        u_int32_t *interrupt_mask;
{
        u_int32_t data;

        /*
         * Read interrupt status from the Read-And-Clear shadow register
         */
        data = AR5K_REG_READ(AR5K_AR5211_RAC_PISR);

        /*
         * Get abstract interrupt mask (HAL-compatible)
         */
        *interrupt_mask = (data & HAL_INT_COMMON) & hal->ah_imr;

        if (data == HAL_INT_NOCARD)
                return (AH_FALSE);

        if (data & (AR5K_AR5211_PISR_RXOK | AR5K_AR5211_PISR_RXERR))
                *interrupt_mask |= HAL_INT_RX;

        if (data & (AR5K_AR5211_PISR_TXOK | AR5K_AR5211_PISR_TXERR))
                *interrupt_mask |= HAL_INT_TX;

        if (data & (AR5K_AR5211_PISR_HIUERR))
                *interrupt_mask |= HAL_INT_FATAL;

        /*
         * Special interrupt handling (not catched by the driver)
         */
        if (((*interrupt_mask) & AR5K_AR5211_PISR_RXPHY) &&
            hal->ah_radar.r_enabled == AH_TRUE)
                ar5k_radar_alert(hal);

        return (AH_TRUE);
}

u_int32_t
ar5k_ar5211_get_intr(hal)
        struct ath_hal *hal;
{
        /* Return the interrupt mask stored previously */
        return (hal->ah_imr);
}

HAL_INT
ar5k_ar5211_set_intr(hal, new_mask)
        struct ath_hal *hal;
        HAL_INT new_mask;
{
        HAL_INT old_mask, int_mask;

        /*
         * Disable card interrupts to prevent any race conditions
         * (they will be re-enabled afterwards).
         */
        AR5K_REG_WRITE(AR5K_AR5211_IER, AR5K_AR5211_IER_DISABLE);

        old_mask = hal->ah_imr;

        /*
         * Add additional, chipset-dependent interrupt mask flags
         * and write them to the IMR (interrupt mask register).
         */
        int_mask = new_mask & HAL_INT_COMMON;

        if (new_mask & HAL_INT_RX)
                int_mask |=
                    AR5K_AR5211_PIMR_RXOK |
                    AR5K_AR5211_PIMR_RXERR |
                    AR5K_AR5211_PIMR_RXORN |
                    AR5K_AR5211_PIMR_RXDESC;

        if (new_mask & HAL_INT_TX)
                int_mask |=
                    AR5K_AR5211_PIMR_TXOK |
                    AR5K_AR5211_PIMR_TXERR |
                    AR5K_AR5211_PIMR_TXDESC |
                    AR5K_AR5211_PIMR_TXURN;

        if (new_mask & HAL_INT_FATAL) {
                int_mask |= AR5K_AR5211_PIMR_HIUERR;
                AR5K_REG_ENABLE_BITS(AR5K_AR5211_SIMR2,
                    AR5K_AR5211_SIMR2_MCABT |
                    AR5K_AR5211_SIMR2_SSERR |
                    AR5K_AR5211_SIMR2_DPERR);
        }

        AR5K_REG_WRITE(AR5K_AR5211_PIMR, int_mask);

        /* Store new interrupt mask */
        hal->ah_imr = new_mask;

        /* ..re-enable interrupts */
        AR5K_REG_WRITE(AR5K_AR5211_IER, AR5K_AR5211_IER_ENABLE);

        return (old_mask);
}

/*
 * Misc internal functions
 */

HAL_BOOL
ar5k_ar5211_get_capabilities(hal)
        struct ath_hal *hal;
{
        u_int16_t ee_header;

        /* Capabilities stored in the EEPROM */
        ee_header = hal->ah_capabilities.cap_eeprom.ee_header;

        /*
         * XXX The AR5211 tranceiver supports frequencies from 4920 to 6100GHz
         * XXX and from 2312 to 2732GHz. There are problems with the current
         * XXX ieee80211 implementation because the IEEE channel mapping
         * XXX does not support negative channel numbers (2312MHz is channel
         * XXX -19). Of course, this doesn't matter because these channels
         * XXX are out of range but some regulation domains like MKK (Japan)
         * XXX will support frequencies somewhere around 4.8GHz.
         */

        /*
         * Set radio capabilities
         */

        if (AR5K_EEPROM_HDR_11A(ee_header)) {
                hal->ah_capabilities.cap_range.range_5ghz_min = 5005; /* 4920 */
                hal->ah_capabilities.cap_range.range_5ghz_max = 6100;

                /* Set supported modes */
                hal->ah_capabilities.cap_mode = HAL_MODE_11A | HAL_MODE_TURBO;
        }

        /* This chip will support 802.11b if the 2GHz radio is connected */
        if (AR5K_EEPROM_HDR_11B(ee_header) || AR5K_EEPROM_HDR_11G(ee_header)) {
                hal->ah_capabilities.cap_range.range_2ghz_min = 2412; /* 2312 */
                hal->ah_capabilities.cap_range.range_2ghz_max = 2732;
                hal->ah_capabilities.cap_mode |= HAL_MODE_11B;

                if (AR5K_EEPROM_HDR_11B(ee_header))
                        hal->ah_capabilities.cap_mode |= HAL_MODE_11B;
                if (AR5K_EEPROM_HDR_11G(ee_header))
                        hal->ah_capabilities.cap_mode |= HAL_MODE_11G;
        }

        /* GPIO */
        hal->ah_gpio_npins = AR5K_AR5211_NUM_GPIO;

        /* Set number of supported TX queues */
        hal->ah_capabilities.cap_queues.q_tx_num = AR5K_AR5211_TX_NUM_QUEUES;

        return (AH_TRUE);
}

void
ar5k_ar5211_radar_alert(hal, enable)
        struct ath_hal *hal;
        HAL_BOOL enable;
{
        /*
         * Enable radar detection
         */
        AR5K_REG_WRITE(AR5K_AR5211_IER, AR5K_AR5211_IER_DISABLE);

        if (enable == AH_TRUE) {
                AR5K_REG_WRITE(AR5K_AR5211_PHY_RADAR,
                    AR5K_AR5211_PHY_RADAR_ENABLE);
                AR5K_REG_ENABLE_BITS(AR5K_AR5211_PIMR,
                    AR5K_AR5211_PIMR_RXPHY);
        } else {
                AR5K_REG_WRITE(AR5K_AR5211_PHY_RADAR,
                    AR5K_AR5211_PHY_RADAR_DISABLE);
                AR5K_REG_DISABLE_BITS(AR5K_AR5211_PIMR,
                    AR5K_AR5211_PIMR_RXPHY);
        }

        AR5K_REG_WRITE(AR5K_AR5211_IER, AR5K_AR5211_IER_ENABLE);
}

/*
 * EEPROM access functions
 */

HAL_BOOL
ar5k_ar5211_eeprom_is_busy(hal)
        struct ath_hal *hal;
{
        return (AR5K_REG_READ(AR5K_AR5211_CFG) & AR5K_AR5211_CFG_EEBS ?
            AH_TRUE : AH_FALSE);
}

int
ar5k_ar5211_eeprom_read(hal, offset, data)
        struct ath_hal *hal;
        u_int32_t offset;
        u_int16_t *data;
{
        u_int32_t status, i;

        /*
         * Initialize EEPROM access
         */
        AR5K_REG_WRITE(AR5K_AR5211_EEPROM_BASE, (u_int8_t)offset);
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_EEPROM_CMD,
            AR5K_AR5211_EEPROM_CMD_READ);

        for (i = AR5K_TUNE_REGISTER_TIMEOUT; i > 0; i--) {
                status = AR5K_REG_READ(AR5K_AR5211_EEPROM_STATUS);
                if (status & AR5K_AR5211_EEPROM_STAT_RDDONE) {
                        if (status & AR5K_AR5211_EEPROM_STAT_RDERR)
                                return (EIO);
                        *data = (u_int16_t)
                            (AR5K_REG_READ(AR5K_AR5211_EEPROM_DATA) & 0xffff);
                        return (0);
                }
                AR5K_DELAY(15);
        }

        return (ETIMEDOUT);
}

int
ar5k_ar5211_eeprom_write(hal, offset, data)
        struct ath_hal *hal;
        u_int32_t offset;
        u_int16_t data;
{
        u_int32_t status, timeout;

        /* Enable eeprom access */
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_EEPROM_CMD,
            AR5K_AR5211_EEPROM_CMD_RESET);
        AR5K_REG_ENABLE_BITS(AR5K_AR5211_EEPROM_CMD,
            AR5K_AR5211_EEPROM_CMD_WRITE);

        /*
         * Prime write pump
         */
        AR5K_REG_WRITE(AR5K_AR5211_EEPROM_BASE, (u_int8_t)offset - 1);

        for (timeout = 10000; timeout > 0; timeout--) {
                AR5K_DELAY(1);
                status = AR5K_REG_READ(AR5K_AR5211_EEPROM_STATUS);
                if (status & AR5K_AR5211_EEPROM_STAT_WRDONE) {
                        if (status & AR5K_AR5211_EEPROM_STAT_WRERR)
                                return (EIO);
                        return (0);
                }
        }

        return (ETIMEDOUT);
}

/*
 * RF register settings
 */

void
ar5k_ar5211_rfregs(hal, channel, freq, ee_mode)
        struct ath_hal *hal;
        HAL_CHANNEL *channel;
        u_int freq, ee_mode;
{
        struct ar5k_eeprom_info *ee = &hal->ah_capabilities.cap_eeprom;
        struct ar5k_ar5211_ini_rf rf[AR5K_ELEMENTS(ar5211_rf)];
        u_int32_t ob, db, obdb, xpds, xpdp, x_gain;
        u_int i;

        bcopy(ar5211_rf, rf, sizeof(rf));
        obdb = 0;

        if (freq == AR5K_INI_RFGAIN_2GHZ &&
            hal->ah_ee_version >= AR5K_EEPROM_VERSION_3_1) {
                ob = ar5k_bitswap(ee->ee_ob[ee_mode][0], 3);
                db = ar5k_bitswap(ee->ee_db[ee_mode][0], 3);
                rf[25].rf_value[freq] =
                    ((ob << 6) & 0xc0) | (rf[25].rf_value[freq] & ~0xc0);
                rf[26].rf_value[freq] =
                    (((ob >> 2) & 0x1) | ((db << 1) & 0xe)) |
                    (rf[26].rf_value[freq] & ~0xf);
        }

        if (freq == AR5K_INI_RFGAIN_5GHZ) {
                /* For 11a and Turbo */
                obdb = channel->c_channel >= 5725 ? 3 :
                    (channel->c_channel >= 5500 ? 2 :
                        (channel->c_channel >= 5260 ? 1 :
                            (channel->c_channel > 4000 ? 0 : -1)));
        }

        ob = ee->ee_ob[ee_mode][obdb];
        db = ee->ee_db[ee_mode][obdb];
        x_gain = ee->ee_x_gain[ee_mode];
        xpds = ee->ee_xpd[ee_mode];
        xpdp = !xpds;

        rf[11].rf_value[freq] = (rf[11].rf_value[freq] & ~0xc0) |
                (((ar5k_bitswap(x_gain, 4) << 7) | (xpdp << 6)) & 0xc0);
        rf[12].rf_value[freq] = (rf[12].rf_value[freq] & ~0x7) |
                ((ar5k_bitswap(x_gain, 4) >> 1) & 0x7);
        rf[12].rf_value[freq] = (rf[12].rf_value[freq] & ~0x80) |
                ((ar5k_bitswap(ob, 3) << 7) & 0x80);
        rf[13].rf_value[freq] = (rf[13].rf_value[freq] & ~0x3) |
                ((ar5k_bitswap(ob, 3) >> 1) & 0x3);
        rf[13].rf_value[freq] = (rf[13].rf_value[freq] & ~0x1c) |
                ((ar5k_bitswap(db, 3) << 2) & 0x1c);
        rf[17].rf_value[freq] = (rf[17].rf_value[freq] & ~0x8) |
                ((xpds << 3) & 0x8);

        for (i = 0; i < AR5K_ELEMENTS(rf); i++) {
                AR5K_REG_WAIT(i);
                AR5K_REG_WRITE((u_int32_t)rf[i].rf_register,
                    rf[i].rf_value[freq]);
        }       

        hal->ah_rf_gain = HAL_RFGAIN_INACTIVE;
}

---