diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt73usb.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt73usb.c | 175 |
1 files changed, 120 insertions, 55 deletions
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index 96a8d69f8790..f854551be75d 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.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 @@ -186,6 +186,18 @@ static const struct rt2x00debug rt73usb_rt2x00debug = { }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ +#ifdef CONFIG_RT2X00_LIB_RFKILL +static int rt73usb_rfkill_poll(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + rt2x00usb_register_read(rt2x00dev, MAC_CSR13, ®); + return rt2x00_get_field32(reg, MAC_CSR13_BIT7); +} +#else +#define rt73usb_rfkill_poll NULL +#endif /* CONFIG_RT2X00_LIB_RFKILL */ + #ifdef CONFIG_RT2X00_LIB_LEDS static void rt73usb_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) @@ -844,6 +856,44 @@ static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev, rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg); } +static void rt73usb_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) { + rt2x00usb_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); + rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg); + + rt2x00_set_field32(®, MAC_CSR11_AUTOWAKE, 1); + rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg); + + rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0, + USB_MODE_SLEEP, REGISTER_TIMEOUT); + } else { + rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0, + USB_MODE_WAKEUP, REGISTER_TIMEOUT); + + rt2x00usb_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); + rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg); + } +} + static void rt73usb_config(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_conf *libconf, const unsigned int flags) @@ -861,6 +911,8 @@ static void rt73usb_config(struct rt2x00_dev *rt2x00dev, rt73usb_config_retry_limit(rt2x00dev, libconf); if (flags & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) rt73usb_config_duration(rt2x00dev, libconf); + if (flags & IEEE80211_CONF_CHANGE_PS) + rt73usb_config_ps(rt2x00dev, libconf); } /* @@ -884,21 +936,28 @@ static void rt73usb_link_stats(struct rt2x00_dev *rt2x00dev, qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR); } -static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev) +static inline void rt73usb_set_vgc(struct rt2x00_dev *rt2x00dev, + struct link_qual *qual, u8 vgc_level) { - rt73usb_bbp_write(rt2x00dev, 17, 0x20); - rt2x00dev->link.vgc_level = 0x20; + if (qual->vgc_level != vgc_level) { + rt73usb_bbp_write(rt2x00dev, 17, vgc_level); + qual->vgc_level = vgc_level; + qual->vgc_level_reg = vgc_level; + } } -static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev) +static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev, + struct link_qual *qual) +{ + rt73usb_set_vgc(rt2x00dev, qual, 0x20); +} + +static void rt73usb_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; - rt73usb_bbp_read(rt2x00dev, 17, &r17); - /* * Determine r17 bounds. */ @@ -911,10 +970,10 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev) up_bound += 0x10; } } else { - if (rssi > -82) { + if (qual->rssi > -82) { low_bound = 0x1c; up_bound = 0x40; - } else if (rssi > -84) { + } else if (qual->rssi > -84) { low_bound = 0x1c; up_bound = 0x20; } else { @@ -938,37 +997,32 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev) /* * Special big-R17 for very short distance */ - if (rssi > -35) { - if (r17 != 0x60) - rt73usb_bbp_write(rt2x00dev, 17, 0x60); + if (qual->rssi > -35) { + rt73usb_set_vgc(rt2x00dev, qual, 0x60); return; } /* * Special big-R17 for short distance */ - if (rssi >= -58) { - if (r17 != up_bound) - rt73usb_bbp_write(rt2x00dev, 17, up_bound); + if (qual->rssi >= -58) { + rt73usb_set_vgc(rt2x00dev, qual, up_bound); return; } /* * Special big-R17 for middle-short distance */ - if (rssi >= -66) { - low_bound += 0x10; - if (r17 != low_bound) - rt73usb_bbp_write(rt2x00dev, 17, low_bound); + if (qual->rssi >= -66) { + rt73usb_set_vgc(rt2x00dev, qual, low_bound + 0x10); return; } /* * Special mid-R17 for middle distance */ - if (rssi >= -74) { - if (r17 != (low_bound + 0x10)) - rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08); + if (qual->rssi >= -74) { + rt73usb_set_vgc(rt2x00dev, qual, low_bound + 0x08); return; } @@ -976,12 +1030,12 @@ static void rt73usb_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) { - rt73usb_bbp_write(rt2x00dev, 17, up_bound); + if (qual->vgc_level > up_bound) { + rt73usb_set_vgc(rt2x00dev, qual, up_bound); return; } @@ -991,17 +1045,12 @@ 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) { - r17 += 4; - if (r17 > up_bound) - r17 = up_bound; - rt73usb_bbp_write(rt2x00dev, 17, r17); - } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) { - r17 -= 4; - if (r17 < low_bound) - r17 = low_bound; - rt73usb_bbp_write(rt2x00dev, 17, r17); - } + if ((qual->false_cca > 512) && (qual->vgc_level < up_bound)) + rt73usb_set_vgc(rt2x00dev, qual, + min_t(u8, qual->vgc_level + 4, up_bound)); + else if ((qual->false_cca < 100) && (qual->vgc_level > low_bound)) + rt73usb_set_vgc(rt2x00dev, qual, + max_t(u8, qual->vgc_level - 4, low_bound)); } /* @@ -1036,6 +1085,11 @@ static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, const void *data, int status; u32 reg; + if (len != 2048) { + ERROR(rt2x00dev, "Invalid firmware file length (len=%zu)\n", len); + return -ENOENT; + } + /* * Wait for stable hardware. */ @@ -1449,7 +1503,7 @@ static void rt73usb_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)); @@ -1816,6 +1870,14 @@ static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev) __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags); /* + * Detect if this device has an hardware controlled radio. + */ +#ifdef CONFIG_RT2X00_LIB_RFKILL + if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) + __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags); +#endif /* CONFIG_RT2X00_LIB_RFKILL */ + + /* * Read frequency offset. */ rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom); @@ -2020,7 +2082,9 @@ static int rt73usb_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 = TXD_DESC_SIZE; SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev); @@ -2121,6 +2185,7 @@ static int rt73usb_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 @@ -2132,24 +2197,23 @@ static int rt73usb_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; - - rt2x00usb_register_read(rt2x00dev, AC_TXOP_CSR0, ®); - rt2x00_set_field32(®, field, queue->txop); - rt2x00usb_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; - - rt2x00usb_register_read(rt2x00dev, AC_TXOP_CSR1, ®); - rt2x00_set_field32(®, field, queue->txop); - rt2x00usb_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; + + rt2x00usb_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, field, queue->txop); + rt2x00usb_register_write(rt2x00dev, offset, reg); /* Update WMM registers */ field.bit_offset = queue_idx * 4; @@ -2220,6 +2284,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = { .uninitialize = rt2x00usb_uninitialize, .clear_entry = rt2x00usb_clear_entry, .set_device_state = rt73usb_set_device_state, + .rfkill_poll = rt73usb_rfkill_poll, .link_stats = rt73usb_link_stats, .reset_tuner = rt73usb_reset_tuner, .link_tuner = rt73usb_link_tuner, |