diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2500usb.c | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 31 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800usb.c | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00.h | 18 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00config.c | 31 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00dev.c | 88 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 11 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.h | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt73usb.c | 1 |
10 files changed, 175 insertions, 28 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index b21f81231a0..15237c27548 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1797,6 +1797,7 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev) __set_bit(REQUIRE_COPY_IV, &rt2x00dev->cap_flags); } __set_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags); + __set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags); /* * Set the rssi offset. diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 5cd096e2ae3..790afd3ed94 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -1640,7 +1640,6 @@ static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev, struct channel_info *info) { u8 rfcsr; - u16 eeprom; rt2800_rfcsr_write(rt2x00dev, 8, rf->rf1); rt2800_rfcsr_write(rt2x00dev, 9, rf->rf3); @@ -1670,11 +1669,10 @@ static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev, rt2x00_set_field8(&rfcsr, RFCSR17_CODE, rt2x00dev->freq_offset); rt2800_rfcsr_write(rt2x00dev, 17, rfcsr); - rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom); if (rf->channel <= 14) { int idx = rf->channel-1; - if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST)) { + if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) { if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F)) { /* r55/r59 value array of channel 1~14 */ static const char r55_bt_rev[] = {0x83, 0x83, @@ -2917,8 +2915,7 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev) ant = (div_mode == 3) ? 1 : 0; /* check if this is a Bluetooth combo card */ - rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom); - if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST)) { + if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) { u32 reg; rt2800_register_read(rt2x00dev, GPIO_CTRL_CFG, ®); @@ -3727,16 +3724,8 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev) } /* - * Read frequency offset and RF programming sequence. - */ - rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom); - rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET); - - /* - * Read external LNA informations. + * Determine external LNA informations. */ - rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom); - if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_EXTERNAL_LNA_5G)) __set_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags); if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_EXTERNAL_LNA_2G)) @@ -3749,6 +3738,18 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev) __set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags); /* + * Detect if this device has Bluetooth co-existence. + */ + if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST)) + __set_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags); + + /* + * Read frequency offset and RF programming sequence. + */ + rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom); + rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET); + + /* * Store led settings, for correct led behaviour. */ #ifdef CONFIG_RT2X00_LIB_LEDS @@ -3756,7 +3757,7 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev) rt2800_init_led(rt2x00dev, &rt2x00dev->led_assoc, LED_TYPE_ASSOC); rt2800_init_led(rt2x00dev, &rt2x00dev->led_qual, LED_TYPE_QUALITY); - rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &rt2x00dev->led_mcu_reg); + rt2x00dev->led_mcu_reg = eeprom; #endif /* CONFIG_RT2X00_LIB_LEDS */ /* diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 08d3947fcb2..cc4a54f571b 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -302,8 +302,8 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev, /* * Write firmware to device. */ - rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, - data, len); + rt2x00pci_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, + data, len); rt2x00pci_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000); rt2x00pci_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001); diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 0d4e8fa3e1f..0eb44cf2f44 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -114,12 +114,12 @@ static bool rt2800usb_txstatus_pending(struct rt2x00_dev *rt2x00dev) return false; } -static void rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev, +static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev, int urb_status, u32 tx_status) { if (urb_status) { WARNING(rt2x00dev, "rt2x00usb_register_read_async failed: %d\n", urb_status); - return; + return false; } /* try to read all TX_STA_FIFO entries before scheduling txdone_work */ @@ -129,13 +129,14 @@ static void rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev, "drop tx status report.\n"); queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work); } else - rt2x00usb_register_read_async(rt2x00dev, TX_STA_FIFO, - rt2800usb_tx_sta_fifo_read_completed); + return true; } else if (!kfifo_is_empty(&rt2x00dev->txstatus_fifo)) { queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work); } else if (rt2800usb_txstatus_pending(rt2x00dev)) { - mod_timer(&rt2x00dev->txstatus_timer, jiffies + msecs_to_jiffies(20)); + mod_timer(&rt2x00dev->txstatus_timer, jiffies + msecs_to_jiffies(2)); } + + return false; } static void rt2800usb_tx_dma_done(struct queue_entry *entry) @@ -493,7 +494,7 @@ static void rt2800usb_work_txdone(struct work_struct *work) * also delayed -> use a timer to retrieve it. */ if (rt2800usb_txstatus_pending(rt2x00dev)) - mod_timer(&rt2x00dev->txstatus_timer, jiffies + msecs_to_jiffies(20)); + mod_timer(&rt2x00dev->txstatus_timer, jiffies + msecs_to_jiffies(2)); } /* @@ -633,6 +634,7 @@ static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev) __set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags); __set_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags); __set_bit(REQUIRE_TXSTATUS_FIFO, &rt2x00dev->cap_flags); + __set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags); setup_timer(&rt2x00dev->txstatus_timer, rt2800usb_tx_sta_fifo_timeout, diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 9d1a158e2c3..c446db69bd3 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -662,6 +662,7 @@ enum rt2x00_state_flags { * Driver configuration */ CONFIG_CHANNEL_HT40, + CONFIG_POWERSAVING, }; /* @@ -681,6 +682,7 @@ enum rt2x00_capability_flags { REQUIRE_TASKLET_CONTEXT, REQUIRE_SW_SEQNO, REQUIRE_HT_TX_DESC, + REQUIRE_PS_AUTOWAKE, /* * Capabilities @@ -697,6 +699,7 @@ enum rt2x00_capability_flags { CAPABILITY_EXTERNAL_LNA_A, CAPABILITY_EXTERNAL_LNA_BG, CAPABILITY_DOUBLE_ANTENNA, + CAPABILITY_BT_COEXIST, }; /* @@ -874,10 +877,20 @@ struct rt2x00_dev { u8 calibration[2]; /* + * Association id. + */ + u16 aid; + + /* * Beacon interval. */ u16 beacon_int; + /** + * Timestamp of last received beacon + */ + unsigned long last_beacon; + /* * Low level statistics which will have * to be kept up to date while device is running. @@ -906,6 +919,11 @@ struct rt2x00_dev { struct work_struct txdone_work; /* + * Powersaving work + */ + struct delayed_work autowakeup_work; + + /* * Data queue arrays for RX, TX, Beacon and ATIM. */ unsigned int data_queues; diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c index f7872640459..555180d8f4a 100644 --- a/drivers/net/wireless/rt2x00/rt2x00config.c +++ b/drivers/net/wireless/rt2x00/rt2x00config.c @@ -100,6 +100,10 @@ void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev, erp.basic_rates = bss_conf->basic_rates; erp.beacon_int = bss_conf->beacon_int; + /* Update the AID, this is needed for dynamic PS support */ + rt2x00dev->aid = bss_conf->assoc ? bss_conf->aid : 0; + rt2x00dev->last_beacon = bss_conf->timestamp; + /* Update global beacon interval time, this is needed for PS support */ rt2x00dev->beacon_int = bss_conf->beacon_int; @@ -204,6 +208,9 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, { struct rt2x00lib_conf libconf; u16 hw_value; + u16 autowake_timeout; + u16 beacon_int; + u16 beacon_diff; memset(&libconf, 0, sizeof(libconf)); @@ -227,6 +234,10 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, sizeof(libconf.channel)); } + if (test_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags) && + (ieee80211_flags & IEEE80211_CONF_CHANGE_PS)) + cancel_delayed_work_sync(&rt2x00dev->autowakeup_work); + /* * Start configuration. */ @@ -239,6 +250,26 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) rt2x00link_reset_tuner(rt2x00dev, false); + if (test_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags) && + (ieee80211_flags & IEEE80211_CONF_CHANGE_PS) && + (conf->flags & IEEE80211_CONF_PS)) { + beacon_diff = (long)jiffies - (long)rt2x00dev->last_beacon; + beacon_int = msecs_to_jiffies(rt2x00dev->beacon_int); + + if (beacon_diff > beacon_int) + beacon_diff = 0; + + autowake_timeout = (conf->max_sleep_period * beacon_int) - beacon_diff; + queue_delayed_work(rt2x00dev->workqueue, + &rt2x00dev->autowakeup_work, + autowake_timeout - 15); + } + + if (conf->flags & IEEE80211_CONF_PS) + set_bit(CONFIG_POWERSAVING, &rt2x00dev->flags); + else + clear_bit(CONFIG_POWERSAVING, &rt2x00dev->flags); + rt2x00dev->curr_band = conf->channel->band; rt2x00dev->curr_freq = conf->channel->center_freq; rt2x00dev->tx_power = conf->power_level; diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 7776d9f1f29..2eb5196977f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -141,6 +141,16 @@ static void rt2x00lib_intf_scheduled(struct work_struct *work) rt2x00dev); } +static void rt2x00lib_autowakeup(struct work_struct *work) +{ + struct rt2x00_dev *rt2x00dev = + container_of(work, struct rt2x00_dev, autowakeup_work.work); + + if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE)) + ERROR(rt2x00dev, "Device failed to wakeup.\n"); + clear_bit(CONFIG_POWERSAVING, &rt2x00dev->flags); +} + /* * Interrupt context handlers. */ @@ -416,6 +426,77 @@ void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status) } EXPORT_SYMBOL_GPL(rt2x00lib_txdone_noinfo); +static u8 *rt2x00lib_find_ie(u8 *data, unsigned int len, u8 ie) +{ + struct ieee80211_mgmt *mgmt = (void *)data; + u8 *pos, *end; + + pos = (u8 *)mgmt->u.beacon.variable; + end = data + len; + while (pos < end) { + if (pos + 2 + pos[1] > end) + return NULL; + + if (pos[0] == ie) + return pos; + + pos += 2 + pos[1]; + } + + return NULL; +} + +static void rt2x00lib_rxdone_check_ps(struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb, + struct rxdone_entry_desc *rxdesc) +{ + struct ieee80211_hdr *hdr = (void *) skb->data; + struct ieee80211_tim_ie *tim_ie; + u8 *tim; + u8 tim_len; + bool cam; + + /* If this is not a beacon, or if mac80211 has no powersaving + * configured, or if the device is already in powersaving mode + * we can exit now. */ + if (likely(!ieee80211_is_beacon(hdr->frame_control) || + !(rt2x00dev->hw->conf.flags & IEEE80211_CONF_PS))) + return; + + /* min. beacon length + FCS_LEN */ + if (skb->len <= 40 + FCS_LEN) + return; + + /* and only beacons from the associated BSSID, please */ + if (!(rxdesc->dev_flags & RXDONE_MY_BSS) || + !rt2x00dev->aid) + return; + + rt2x00dev->last_beacon = jiffies; + + tim = rt2x00lib_find_ie(skb->data, skb->len - FCS_LEN, WLAN_EID_TIM); + if (!tim) + return; + + if (tim[1] < sizeof(*tim_ie)) + return; + + tim_len = tim[1]; + tim_ie = (struct ieee80211_tim_ie *) &tim[2]; + + /* Check whenever the PHY can be turned off again. */ + + /* 1. What about buffered unicast traffic for our AID? */ + cam = ieee80211_check_tim(tim_ie, tim_len, rt2x00dev->aid); + + /* 2. Maybe the AP wants to send multicast/broadcast data? */ + cam |= (tim_ie->bitmap_ctrl & 0x01); + + if (!cam && !test_bit(CONFIG_POWERSAVING, &rt2x00dev->flags)) + rt2x00lib_config(rt2x00dev, &rt2x00dev->hw->conf, + IEEE80211_CONF_CHANGE_PS); +} + static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev, struct rxdone_entry_desc *rxdesc) { @@ -531,6 +612,12 @@ void rt2x00lib_rxdone(struct queue_entry *entry) rxdesc.flags |= RX_FLAG_HT; /* + * Check if this is a beacon, and more frames have been + * buffered while we were in powersaving mode. + */ + rt2x00lib_rxdone_check_ps(rt2x00dev, entry->skb, &rxdesc); + + /* * Update extra components */ rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); @@ -1017,6 +1104,7 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) } INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); + INIT_DELAYED_WORK(&rt2x00dev->autowakeup_work, rt2x00lib_autowakeup); /* * Let the driver probe the device to detect the capabilities. diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index cb208d589ff..39e1052123e 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -170,19 +170,22 @@ struct rt2x00_async_read_data { __le32 reg; struct usb_ctrlrequest cr; struct rt2x00_dev *rt2x00dev; - void (*callback)(struct rt2x00_dev *,int,u32); + bool (*callback)(struct rt2x00_dev *, int, u32); }; static void rt2x00usb_register_read_async_cb(struct urb *urb) { struct rt2x00_async_read_data *rd = urb->context; - rd->callback(rd->rt2x00dev, urb->status, le32_to_cpu(rd->reg)); - kfree(urb->context); + if (rd->callback(rd->rt2x00dev, urb->status, le32_to_cpu(rd->reg))) { + if (usb_submit_urb(urb, GFP_ATOMIC) < 0) + kfree(rd); + } else + kfree(rd); } void rt2x00usb_register_read_async(struct rt2x00_dev *rt2x00dev, const unsigned int offset, - void (*callback)(struct rt2x00_dev*,int,u32)) + bool (*callback)(struct rt2x00_dev*, int, u32)) { struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev); struct urb *urb; diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h index 64be34f612f..323ca7b2b09 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.h +++ b/drivers/net/wireless/rt2x00/rt2x00usb.h @@ -349,10 +349,12 @@ int rt2x00usb_regbusy_read(struct rt2x00_dev *rt2x00dev, * be called from atomic context. The callback will be called * when the URB completes. Otherwise the function is similar * to rt2x00usb_register_read(). + * When the callback function returns false, the memory will be cleaned up, + * when it returns true, the urb will be fired again. */ void rt2x00usb_register_read_async(struct rt2x00_dev *rt2x00dev, const unsigned int offset, - void (*callback)(struct rt2x00_dev*,int,u32)); + bool (*callback)(struct rt2x00_dev*, int, u32)); /* * Radio handlers diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index a6ce7d6cbdf..ad20953cbf0 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2209,6 +2209,7 @@ static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev) if (!modparam_nohwcrypt) __set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags); __set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags); + __set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags); /* * Set the rssi offset. |