diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt61pci.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt61pci.c | 244 |
1 files changed, 141 insertions, 103 deletions
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 987e89009f7..2ca8b7a9722 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -1,5 +1,5 @@ /* - Copyright (C) 2004 - 2008 rt2x00 SourceForge Project + Copyright (C) 2004 - 2009 rt2x00 SourceForge Project <http://rt2x00.serialmonkey.com> This program is free software; you can redistribute it and/or modify @@ -123,9 +123,6 @@ static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev, { u32 reg; - if (!word) - return; - mutex_lock(&rt2x00dev->csr_mutex); /* @@ -146,12 +143,6 @@ static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev, mutex_unlock(&rt2x00dev->csr_mutex); } -#ifdef CONFIG_RT2X00_LIB_LEDS -/* - * This function is only called from rt61pci_led_brightness() - * make gcc happy by placing this function inside the - * same ifdef statement as the caller. - */ static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev, const u8 command, const u8 token, const u8 arg0, const u8 arg1) @@ -180,7 +171,6 @@ static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev, mutex_unlock(&rt2x00dev->csr_mutex); } -#endif /* CONFIG_RT2X00_LIB_LEDS */ static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom) { @@ -967,6 +957,50 @@ static void rt61pci_config_duration(struct rt2x00_dev *rt2x00dev, rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg); } +static void rt61pci_config_ps(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_conf *libconf) +{ + enum dev_state state = + (libconf->conf->flags & IEEE80211_CONF_PS) ? + STATE_SLEEP : STATE_AWAKE; + u32 reg; + + if (state == STATE_SLEEP) { + rt2x00pci_register_read(rt2x00dev, MAC_CSR11, ®); + rt2x00_set_field32(®, MAC_CSR11_DELAY_AFTER_TBCN, + libconf->conf->beacon_int - 10); + rt2x00_set_field32(®, MAC_CSR11_TBCN_BEFORE_WAKEUP, + libconf->conf->listen_interval - 1); + rt2x00_set_field32(®, MAC_CSR11_WAKEUP_LATENCY, 5); + + /* We must first disable autowake before it can be enabled */ + rt2x00_set_field32(®, MAC_CSR11_AUTOWAKE, 0); + rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg); + + rt2x00_set_field32(®, MAC_CSR11_AUTOWAKE, 1); + rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg); + + rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000005); + rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x0000001c); + rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000060); + + rt61pci_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0, 0); + } else { + rt2x00pci_register_read(rt2x00dev, MAC_CSR11, ®); + rt2x00_set_field32(®, MAC_CSR11_DELAY_AFTER_TBCN, 0); + rt2x00_set_field32(®, MAC_CSR11_TBCN_BEFORE_WAKEUP, 0); + rt2x00_set_field32(®, MAC_CSR11_AUTOWAKE, 0); + rt2x00_set_field32(®, MAC_CSR11_WAKEUP_LATENCY, 0); + rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg); + + rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000007); + rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x00000018); + rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000020); + + rt61pci_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0, 0); + } +} + static void rt61pci_config(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_conf *libconf, const unsigned int flags) @@ -984,6 +1018,8 @@ static void rt61pci_config(struct rt2x00_dev *rt2x00dev, rt61pci_config_retry_limit(rt2x00dev, libconf); if (flags & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) rt61pci_config_duration(rt2x00dev, libconf); + if (flags & IEEE80211_CONF_CHANGE_PS) + rt61pci_config_ps(rt2x00dev, libconf); } /* @@ -1007,21 +1043,28 @@ static void rt61pci_link_stats(struct rt2x00_dev *rt2x00dev, qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR); } -static void rt61pci_reset_tuner(struct rt2x00_dev *rt2x00dev) +static inline void rt61pci_set_vgc(struct rt2x00_dev *rt2x00dev, + struct link_qual *qual, u8 vgc_level) +{ + if (qual->vgc_level != vgc_level) { + rt61pci_bbp_write(rt2x00dev, 17, vgc_level); + qual->vgc_level = vgc_level; + qual->vgc_level_reg = vgc_level; + } +} + +static void rt61pci_reset_tuner(struct rt2x00_dev *rt2x00dev, + struct link_qual *qual) { - rt61pci_bbp_write(rt2x00dev, 17, 0x20); - rt2x00dev->link.vgc_level = 0x20; + rt61pci_set_vgc(rt2x00dev, qual, 0x20); } -static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev) +static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev, + struct link_qual *qual, const u32 count) { - int rssi = rt2x00_get_link_rssi(&rt2x00dev->link); - u8 r17; u8 up_bound; u8 low_bound; - rt61pci_bbp_read(rt2x00dev, 17, &r17); - /* * Determine r17 bounds. */ @@ -1051,38 +1094,32 @@ static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev) /* * Special big-R17 for very short distance */ - if (rssi >= -35) { - if (r17 != 0x60) - rt61pci_bbp_write(rt2x00dev, 17, 0x60); + if (qual->rssi >= -35) { + rt61pci_set_vgc(rt2x00dev, qual, 0x60); return; } /* * Special big-R17 for short distance */ - if (rssi >= -58) { - if (r17 != up_bound) - rt61pci_bbp_write(rt2x00dev, 17, up_bound); + if (qual->rssi >= -58) { + rt61pci_set_vgc(rt2x00dev, qual, up_bound); return; } /* * Special big-R17 for middle-short distance */ - if (rssi >= -66) { - low_bound += 0x10; - if (r17 != low_bound) - rt61pci_bbp_write(rt2x00dev, 17, low_bound); + if (qual->rssi >= -66) { + rt61pci_set_vgc(rt2x00dev, qual, low_bound + 0x10); return; } /* * Special mid-R17 for middle distance */ - if (rssi >= -74) { - low_bound += 0x08; - if (r17 != low_bound) - rt61pci_bbp_write(rt2x00dev, 17, low_bound); + if (qual->rssi >= -74) { + rt61pci_set_vgc(rt2x00dev, qual, low_bound + 0x08); return; } @@ -1090,12 +1127,12 @@ static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev) * Special case: Change up_bound based on the rssi. * Lower up_bound when rssi is weaker then -74 dBm. */ - up_bound -= 2 * (-74 - rssi); + up_bound -= 2 * (-74 - qual->rssi); if (low_bound > up_bound) up_bound = low_bound; - if (r17 > up_bound) { - rt61pci_bbp_write(rt2x00dev, 17, up_bound); + if (qual->vgc_level > up_bound) { + rt61pci_set_vgc(rt2x00dev, qual, up_bound); return; } @@ -1105,15 +1142,10 @@ dynamic_cca_tune: * r17 does not yet exceed upper limit, continue and base * the r17 tuning on the false CCA count. */ - if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) { - if (++r17 > up_bound) - r17 = up_bound; - rt61pci_bbp_write(rt2x00dev, 17, r17); - } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) { - if (--r17 < low_bound) - r17 = low_bound; - rt61pci_bbp_write(rt2x00dev, 17, r17); - } + if ((qual->false_cca > 512) && (qual->vgc_level < up_bound)) + rt61pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level); + else if ((qual->false_cca < 100) && (qual->vgc_level > low_bound)) + rt61pci_set_vgc(rt2x00dev, qual, --qual->vgc_level); } /* @@ -1141,25 +1173,37 @@ static char *rt61pci_get_firmware_name(struct rt2x00_dev *rt2x00dev) return fw_name; } -static u16 rt61pci_get_firmware_crc(const void *data, const size_t len) +static int rt61pci_check_firmware(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len) { + u16 fw_crc; u16 crc; /* - * Use the crc itu-t algorithm. + * Only support 8kb firmware files. + */ + if (len != 8192) + return FW_BAD_LENGTH; + + /* * The last 2 bytes in the firmware array are the crc checksum itself, * this means that we should never pass those 2 bytes to the crc * algorithm. */ + fw_crc = (data[len - 2] << 8 | data[len - 1]); + + /* + * Use the crc itu-t algorithm. + */ crc = crc_itu_t(0, data, len - 2); crc = crc_itu_t_byte(crc, 0); crc = crc_itu_t_byte(crc, 0); - return crc; + return (fw_crc == crc) ? FW_OK : FW_BAD_CRC; } -static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev, const void *data, - const size_t len) +static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len) { int i; u32 reg; @@ -1656,24 +1700,10 @@ static int rt61pci_enable_radio(struct rt2x00_dev *rt2x00dev) static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev) { - u32 reg; - - rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818); - /* - * Disable synchronisation. + * Disable power */ - rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0); - - /* - * Cancel RX and TX. - */ - rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®); - rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC0, 1); - rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC1, 1); - rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC2, 1); - rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC3, 1); - rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg); + rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818); } static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) @@ -1812,7 +1842,7 @@ static void rt61pci_write_tx_desc(struct rt2x00_dev *rt2x00dev, rt2x00_set_field32(&word, TXD_W0_TIMESTAMP, test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags)); rt2x00_set_field32(&word, TXD_W0_OFDM, - test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags)); + (txdesc->rate_mode == RATE_MODE_OFDM)); rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs); rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags)); @@ -1896,6 +1926,24 @@ static void rt61pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg); } +static void rt61pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev, + const enum data_queue_qid qid) +{ + u32 reg; + + if (qid == QID_BEACON) { + rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0); + return; + } + + rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC0, (qid == QID_AC_BE)); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC1, (qid == QID_AC_BK)); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC2, (qid == QID_AC_VI)); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC3, (qid == QID_AC_VO)); + rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg); +} + /* * RX control handlers */ @@ -2195,7 +2243,8 @@ static int rt61pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_NIC_ENABLE_DIVERSITY, 0); rt2x00_set_field16(&word, EEPROM_NIC_TX_DIVERSITY, 0); - rt2x00_set_field16(&word, EEPROM_NIC_TX_RX_FIXED, 0); + rt2x00_set_field16(&word, EEPROM_NIC_RX_FIXED, 0); + rt2x00_set_field16(&word, EEPROM_NIC_TX_FIXED, 0); rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_BG, 0); rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0); rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_A, 0); @@ -2339,24 +2388,10 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev) */ if (rt2x00_rf(&rt2x00dev->chip, RF2529) && !test_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags)) { - switch (rt2x00_get_field16(eeprom, EEPROM_NIC_TX_RX_FIXED)) { - case 0: - rt2x00dev->default_ant.tx = ANTENNA_B; - rt2x00dev->default_ant.rx = ANTENNA_A; - break; - case 1: - rt2x00dev->default_ant.tx = ANTENNA_B; - rt2x00dev->default_ant.rx = ANTENNA_B; - break; - case 2: - rt2x00dev->default_ant.tx = ANTENNA_A; - rt2x00dev->default_ant.rx = ANTENNA_A; - break; - case 3: - rt2x00dev->default_ant.tx = ANTENNA_A; - rt2x00dev->default_ant.rx = ANTENNA_B; - break; - } + rt2x00dev->default_ant.rx = + ANTENNA_A + rt2x00_get_field16(eeprom, EEPROM_NIC_RX_FIXED); + rt2x00dev->default_ant.tx = + ANTENNA_B - rt2x00_get_field16(eeprom, EEPROM_NIC_TX_FIXED); if (rt2x00_get_field16(eeprom, EEPROM_NIC_TX_DIVERSITY)) rt2x00dev->default_ant.tx = ANTENNA_SW_DIVERSITY; @@ -2534,7 +2569,9 @@ static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) */ rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | - IEEE80211_HW_SIGNAL_DBM; + IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_PS_NULLFUNC_STACK; rt2x00dev->hw->extra_tx_headroom = 0; SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev); @@ -2633,6 +2670,7 @@ static int rt61pci_conf_tx(struct ieee80211_hw *hw, u16 queue_idx, struct rt2x00_field32 field; int retval; u32 reg; + u32 offset; /* * First pass the configuration through rt2x00lib, that will @@ -2644,24 +2682,23 @@ static int rt61pci_conf_tx(struct ieee80211_hw *hw, u16 queue_idx, if (retval) return retval; + /* + * We only need to perform additional register initialization + * for WMM queues/ + */ + if (queue_idx >= 4) + return 0; + queue = rt2x00queue_get_queue(rt2x00dev, queue_idx); /* Update WMM TXOP register */ - if (queue_idx < 2) { - field.bit_offset = queue_idx * 16; - field.bit_mask = 0xffff << field.bit_offset; - - rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR0, ®); - rt2x00_set_field32(®, field, queue->txop); - rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR0, reg); - } else if (queue_idx < 4) { - field.bit_offset = (queue_idx - 2) * 16; - field.bit_mask = 0xffff << field.bit_offset; - - rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR1, ®); - rt2x00_set_field32(®, field, queue->txop); - rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR1, reg); - } + offset = AC_TXOP_CSR0 + (sizeof(u32) * (!!(queue_idx & 2))); + field.bit_offset = (queue_idx & 1) * 16; + field.bit_mask = 0xffff << field.bit_offset; + + rt2x00pci_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, field, queue->txop); + rt2x00pci_register_write(rt2x00dev, offset, reg); /* Update WMM registers */ field.bit_offset = queue_idx * 4; @@ -2717,7 +2754,7 @@ static const struct rt2x00lib_ops rt61pci_rt2x00_ops = { .irq_handler = rt61pci_interrupt, .probe_hw = rt61pci_probe_hw, .get_firmware_name = rt61pci_get_firmware_name, - .get_firmware_crc = rt61pci_get_firmware_crc, + .check_firmware = rt61pci_check_firmware, .load_firmware = rt61pci_load_firmware, .initialize = rt2x00pci_initialize, .uninitialize = rt2x00pci_uninitialize, @@ -2732,6 +2769,7 @@ static const struct rt2x00lib_ops rt61pci_rt2x00_ops = { .write_tx_data = rt2x00pci_write_tx_data, .write_beacon = rt61pci_write_beacon, .kick_tx_queue = rt61pci_kick_tx_queue, + .kill_tx_queue = rt61pci_kill_tx_queue, .fill_rxdone = rt61pci_fill_rxdone, .config_shared_key = rt61pci_config_shared_key, .config_pairwise_key = rt61pci_config_pairwise_key, |