diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2500usb.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2500usb.c | 549 |
1 files changed, 313 insertions, 236 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index 638c3d243108..c8216d755835 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1,5 +1,5 @@ /* - Copyright (C) 2004 - 2007 rt2x00 SourceForge Project + Copyright (C) 2004 - 2008 rt2x00 SourceForge Project <http://rt2x00.serialmonkey.com> This program is free software; you can redistribute it and/or modify @@ -282,97 +282,110 @@ static const struct rt2x00debug rt2500usb_rt2x00debug = { }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ -/* - * Configuration handlers. - */ -static void rt2500usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, - __le32 *mac) +#ifdef CONFIG_RT2500USB_LEDS +static void rt2500usb_led_brightness(struct led_classdev *led_cdev, + enum led_brightness brightness) { - rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, mac, - (3 * sizeof(__le16))); -} + struct rt2x00_led *led = + container_of(led_cdev, struct rt2x00_led, led_dev); + unsigned int enabled = brightness != LED_OFF; + unsigned int activity = + led->rt2x00dev->led_flags & LED_SUPPORT_ACTIVITY; -static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev, - __le32 *bssid) -{ - rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, bssid, - (3 * sizeof(__le16))); + if (in_atomic()) { + NOTICE(led->rt2x00dev, + "Ignoring LED brightness command for led %d\n", + led->type); + return; + } + + if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC) { + rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg, + MAC_CSR20_LINK, enabled); + rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg, + MAC_CSR20_ACTIVITY, enabled && activity); + } + + rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, + led->rt2x00dev->led_mcu_reg); } +#else +#define rt2500usb_led_brightness NULL +#endif /* CONFIG_RT2500USB_LEDS */ -static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type, - const int tsf_sync) +/* + * Configuration handlers. + */ +static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev, + struct rt2x00_intf *intf, + struct rt2x00intf_conf *conf, + const unsigned int flags) { + unsigned int bcn_preload; u16 reg; - rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0); + if (flags & CONFIG_UPDATE_TYPE) { + /* + * Enable beacon config + */ + bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20); + rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®); + rt2x00_set_field16(®, TXRX_CSR20_OFFSET, bcn_preload >> 6); + rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW, + 2 * (conf->type != IEEE80211_IF_TYPE_STA)); + rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg); - /* - * Enable beacon config - */ - rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®); - rt2x00_set_field16(®, TXRX_CSR20_OFFSET, - (PREAMBLE + get_duration(IEEE80211_HEADER, 20)) >> 6); - if (type == IEEE80211_IF_TYPE_STA) - rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW, 0); - else - rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW, 2); - rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg); + /* + * Enable synchronisation. + */ + rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®); + rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0); + rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg); + + rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®); + rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1); + rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, conf->sync); + rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1); + rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg); + } - /* - * Enable synchronisation. - */ - rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®); - rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0); - rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg); + if (flags & CONFIG_UPDATE_MAC) + rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac, + (3 * sizeof(__le16))); - rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®); - rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1); - rt2x00_set_field16(®, TXRX_CSR19_TBCN, - (tsf_sync == TSF_SYNC_BEACON)); - rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0); - rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, tsf_sync); - rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg); + if (flags & CONFIG_UPDATE_BSSID) + rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid, + (3 * sizeof(__le16))); } -static void rt2500usb_config_preamble(struct rt2x00_dev *rt2x00dev, - const int short_preamble, - const int ack_timeout, - const int ack_consume_time) +static int rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_erp *erp) { u16 reg; /* - * When in atomic context, reschedule and let rt2x00lib - * call this function again. + * When in atomic context, we should let rt2x00lib + * try this configuration again later. */ - if (in_atomic()) { - queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->config_work); - return; - } + if (in_atomic()) + return -EAGAIN; rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®); - rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, ack_timeout); + rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout); rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg); rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®); rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE, - !!short_preamble); + !!erp->short_preamble); rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg); + + return 0; } static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev, - const int phymode, const int basic_rate_mask) { rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask); - - if (phymode == HWMODE_B) { - rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x000b); - rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x0040); - } else { - rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0005); - rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x016c); - } } static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev, @@ -424,6 +437,13 @@ static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev, u16 csr5; u16 csr6; + /* + * We should never come here because rt2x00lib is supposed + * to catch this and send us the correct antenna explicitely. + */ + BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY || + ant->tx == ANTENNA_SW_DIVERSITY); + rt2500usb_bbp_read(rt2x00dev, 2, &r2); rt2500usb_bbp_read(rt2x00dev, 14, &r14); rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5); @@ -443,14 +463,8 @@ static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev, rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0); rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0); break; - case ANTENNA_SW_DIVERSITY: - /* - * NOTE: We should never come here because rt2x00lib is - * supposed to catch this and send us the correct antenna - * explicitely. However we are nog going to bug about this. - * Instead, just default to antenna B. - */ case ANTENNA_B: + default: rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2); rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2); rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2); @@ -467,14 +481,8 @@ static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev, case ANTENNA_A: rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0); break; - case ANTENNA_SW_DIVERSITY: - /* - * NOTE: We should never come here because rt2x00lib is - * supposed to catch this and send us the correct antenna - * explicitely. However we are nog going to bug about this. - * Instead, just default to antenna B. - */ case ANTENNA_B: + default: rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2); break; } @@ -510,6 +518,8 @@ static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev, u16 reg; rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time); + rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs); + rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs); rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®); rt2x00_set_field16(®, TXRX_CSR18_INTERVAL, @@ -518,12 +528,11 @@ static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev, } static void rt2500usb_config(struct rt2x00_dev *rt2x00dev, - const unsigned int flags, - struct rt2x00lib_conf *libconf) + struct rt2x00lib_conf *libconf, + const unsigned int flags) { if (flags & CONFIG_UPDATE_PHYMODE) - rt2500usb_config_phymode(rt2x00dev, libconf->phymode, - libconf->basic_rates); + rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates); if (flags & CONFIG_UPDATE_CHANNEL) rt2500usb_config_channel(rt2x00dev, &libconf->rf, libconf->conf->power_level); @@ -537,36 +546,6 @@ static void rt2500usb_config(struct rt2x00_dev *rt2x00dev, } /* - * LED functions. - */ -static void rt2500usb_enable_led(struct rt2x00_dev *rt2x00dev) -{ - u16 reg; - - rt2500usb_register_read(rt2x00dev, MAC_CSR21, ®); - rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, 70); - rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, 30); - rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg); - - rt2500usb_register_read(rt2x00dev, MAC_CSR20, ®); - rt2x00_set_field16(®, MAC_CSR20_LINK, - (rt2x00dev->led_mode != LED_MODE_ASUS)); - rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, - (rt2x00dev->led_mode != LED_MODE_TXRX_ACTIVITY)); - rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg); -} - -static void rt2500usb_disable_led(struct rt2x00_dev *rt2x00dev) -{ - u16 reg; - - rt2500usb_register_read(rt2x00dev, MAC_CSR20, ®); - rt2x00_set_field16(®, MAC_CSR20_LINK, 0); - rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 0); - rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg); -} - -/* * Link tuning */ static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev, @@ -626,6 +605,24 @@ static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev) u8 low_bound; /* + * Read current r17 value, as well as the sensitivity values + * for the r17 register. + */ + rt2500usb_bbp_read(rt2x00dev, 17, &r17); + rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens); + + rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound); + up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER); + low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER); + + /* + * If we are not associated, we should go straight to the + * dynamic CCA tuning. + */ + if (!rt2x00dev->intf_associated) + goto dynamic_cca_tune; + + /* * Determine the BBP tuning threshold and correctly * set BBP 24, 25 and 61. */ @@ -651,13 +648,6 @@ static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev) rt2500usb_bbp_write(rt2x00dev, 61, r61); /* - * Read current r17 value, as well as the sensitivity values - * for the r17 register. - */ - rt2500usb_bbp_read(rt2x00dev, 17, &r17); - rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens); - - /* * A too low RSSI will cause too much false CCA which will * then corrupt the R17 tuning. To remidy this the tuning should * be stopped (While making sure the R17 value will not exceed limits) @@ -692,14 +682,9 @@ static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev) * Leave short or middle distance condition, restore r17 * to the dynamic tuning range. */ - rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound); - vgc_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER); - low_bound = 0x32; - if (rssi >= -77) - up_bound = vgc_bound; - else - up_bound = vgc_bound - (-77 - rssi); + if (rssi < -77) + up_bound -= (-77 - rssi); if (up_bound < low_bound) up_bound = low_bound; @@ -707,7 +692,16 @@ static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev) if (r17 > up_bound) { rt2500usb_bbp_write(rt2x00dev, 17, up_bound); rt2x00dev->link.vgc_level = up_bound; - } else if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) { + return; + } + +dynamic_cca_tune: + + /* + * R17 is inside the dynamic tuning range, + * start tuning the link based on the false cca counter. + */ + if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) { rt2500usb_bbp_write(rt2x00dev, 17, ++r17); rt2x00dev->link.vgc_level = r17; } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) { @@ -747,6 +741,11 @@ static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev) rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0); rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg); + rt2500usb_register_read(rt2x00dev, MAC_CSR21, ®); + rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, 70); + rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, 30); + rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg); + rt2500usb_register_read(rt2x00dev, TXRX_CSR5, ®); rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0, 13); rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0_VALID, 1); @@ -878,19 +877,15 @@ continue_csr_init: rt2500usb_bbp_write(rt2x00dev, 62, 0x10); rt2500usb_bbp_write(rt2x00dev, 75, 0xff); - DEBUG(rt2x00dev, "Start initialization from EEPROM...\n"); for (i = 0; i < EEPROM_BBP_SIZE; i++) { rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom); if (eeprom != 0xffff && eeprom != 0x0000) { reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID); value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE); - DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n", - reg_id, value); rt2500usb_bbp_write(rt2x00dev, reg_id, value); } } - DEBUG(rt2x00dev, "...End initialization from EEPROM.\n"); return 0; } @@ -920,21 +915,11 @@ static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev) return -EIO; } - /* - * Enable LED - */ - rt2500usb_enable_led(rt2x00dev); - return 0; } static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev) { - /* - * Disable LED - */ - rt2500usb_disable_led(rt2x00dev); - rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121); rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121); @@ -1027,10 +1012,10 @@ static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev, */ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb, - struct txdata_entry_desc *desc, + struct txentry_desc *txdesc, struct ieee80211_tx_control *control) { - struct skb_desc *skbdesc = get_skb_desc(skb); + struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); __le32 *txd = skbdesc->desc; u32 word; @@ -1039,31 +1024,31 @@ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev, */ rt2x00_desc_read(txd, 1, &word); rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER); - rt2x00_set_field32(&word, TXD_W1_AIFS, desc->aifs); - rt2x00_set_field32(&word, TXD_W1_CWMIN, desc->cw_min); - rt2x00_set_field32(&word, TXD_W1_CWMAX, desc->cw_max); + rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs); + rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min); + rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max); rt2x00_desc_write(txd, 1, word); rt2x00_desc_read(txd, 2, &word); - rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal); - rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low); - rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high); + rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal); + rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low); + rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high); rt2x00_desc_write(txd, 2, word); rt2x00_desc_read(txd, 0, &word); rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit); rt2x00_set_field32(&word, TXD_W0_MORE_FRAG, - test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags)); + test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags)); rt2x00_set_field32(&word, TXD_W0_ACK, - test_bit(ENTRY_TXD_ACK, &desc->flags)); + test_bit(ENTRY_TXD_ACK, &txdesc->flags)); rt2x00_set_field32(&word, TXD_W0_TIMESTAMP, - test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags)); + test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags)); rt2x00_set_field32(&word, TXD_W0_OFDM, - test_bit(ENTRY_TXD_OFDM_RATE, &desc->flags)); + test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags)); rt2x00_set_field32(&word, TXD_W0_NEW_SEQ, !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT)); - rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs); + rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs); rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len); rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE); rt2x00_desc_write(txd, 0, word); @@ -1088,15 +1073,17 @@ static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev, * TX data initialization */ static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, - unsigned int queue) + const unsigned int queue) { u16 reg; - if (queue != IEEE80211_TX_QUEUE_BEACON) + if (queue != RT2X00_BCN_QUEUE_BEACON) return; rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®); if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) { + rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1); + rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1); rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 1); /* * Beacon generation will fail initially. @@ -1114,42 +1101,65 @@ static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, /* * RX control handlers */ -static void rt2500usb_fill_rxdone(struct data_entry *entry, - struct rxdata_entry_desc *desc) +static void rt2500usb_fill_rxdone(struct queue_entry *entry, + struct rxdone_entry_desc *rxdesc) { - struct skb_desc *skbdesc = get_skb_desc(entry->skb); - struct urb *urb = entry->priv; - __le32 *rxd = (__le32 *)(entry->skb->data + - (urb->actual_length - entry->ring->desc_size)); + struct queue_entry_priv_usb_rx *priv_rx = entry->priv_data; + struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); + __le32 *rxd = + (__le32 *)(entry->skb->data + + (priv_rx->urb->actual_length - entry->queue->desc_size)); + unsigned int offset = entry->queue->desc_size + 2; u32 word0; u32 word1; + /* + * Copy descriptor to the available headroom inside the skbuffer. + */ + skb_push(entry->skb, offset); + memcpy(entry->skb->data, rxd, entry->queue->desc_size); + rxd = (__le32 *)entry->skb->data; + + /* + * The descriptor is now aligned to 4 bytes and thus it is + * now safe to read it on all architectures. + */ rt2x00_desc_read(rxd, 0, &word0); rt2x00_desc_read(rxd, 1, &word1); - desc->flags = 0; + rxdesc->flags = 0; if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR)) - desc->flags |= RX_FLAG_FAILED_FCS_CRC; + rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC; if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR)) - desc->flags |= RX_FLAG_FAILED_PLCP_CRC; + rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC; /* * Obtain the status about this packet. + * When frame was received with an OFDM bitrate, + * the signal is the PLCP value. If it was received with + * a CCK bitrate the signal is the rate in 100kbit/s. */ - desc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL); - desc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) - - entry->ring->rt2x00dev->rssi_offset; - desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM); - desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT); - desc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS); + rxdesc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM); + rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL); + rxdesc->signal_plcp = rxdesc->ofdm; + rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) - + entry->queue->rt2x00dev->rssi_offset; + rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT); + rxdesc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS); + + /* + * Adjust the skb memory window to the frame boundaries. + */ + skb_pull(entry->skb, offset); + skb_trim(entry->skb, rxdesc->size); /* * Set descriptor and data pointer. */ - skbdesc->desc = entry->skb->data + desc->size; - skbdesc->desc_len = entry->ring->desc_size; skbdesc->data = entry->skb->data; - skbdesc->data_len = desc->size; + skbdesc->data_len = rxdesc->size; + skbdesc->desc = rxd; + skbdesc->desc_len = entry->queue->desc_size; } /* @@ -1157,10 +1167,10 @@ static void rt2500usb_fill_rxdone(struct data_entry *entry, */ static void rt2500usb_beacondone(struct urb *urb) { - struct data_entry *entry = (struct data_entry *)urb->context; - struct data_ring *ring = entry->ring; + struct queue_entry *entry = (struct queue_entry *)urb->context; + struct queue_entry_priv_usb_bcn *priv_bcn = entry->priv_data; - if (!test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) + if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags)) return; /* @@ -1169,18 +1179,11 @@ static void rt2500usb_beacondone(struct urb *urb) * Otherwise we should free the sk_buffer, the device * should be doing the rest of the work now. */ - if (ring->index == 1) { - rt2x00_ring_index_done_inc(ring); - entry = rt2x00_get_data_entry(ring); - usb_submit_urb(entry->priv, GFP_ATOMIC); - rt2x00_ring_index_inc(ring); - } else if (ring->index_done == 1) { - entry = rt2x00_get_data_entry_done(ring); - if (entry->skb) { - dev_kfree_skb(entry->skb); - entry->skb = NULL; - } - rt2x00_ring_index_done_inc(ring); + if (priv_bcn->guardian_urb == urb) { + usb_submit_urb(priv_bcn->urb, GFP_ATOMIC); + } else if (priv_bcn->urb == urb) { + dev_kfree_skb(entry->skb); + entry->skb = NULL; } } @@ -1191,6 +1194,7 @@ static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev) { u16 word; u8 *mac; + u8 bbp; rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE); @@ -1245,9 +1249,17 @@ static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev) EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word); } + /* + * Switch lower vgc bound to current BBP R17 value, + * lower the value a bit for better quality. + */ + rt2500usb_bbp_read(rt2x00dev, 17, &bbp); + bbp -= 6; + rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40); + rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp); rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word); EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word); } @@ -1258,6 +1270,9 @@ static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev) rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41); rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word); EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word); + } else { + rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp); + rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word); } rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word); @@ -1342,8 +1357,31 @@ static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Store led mode, for correct led behaviour. */ - rt2x00dev->led_mode = - rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); +#ifdef CONFIG_RT2500USB_LEDS + value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); + + switch (value) { + case LED_MODE_ASUS: + case LED_MODE_ALPHA: + case LED_MODE_DEFAULT: + rt2x00dev->led_flags = LED_SUPPORT_RADIO; + break; + case LED_MODE_TXRX_ACTIVITY: + rt2x00dev->led_flags = + LED_SUPPORT_RADIO | LED_SUPPORT_ACTIVITY; + break; + case LED_MODE_SIGNAL_STRENGTH: + rt2x00dev->led_flags = LED_SUPPORT_RADIO; + break; + } + + /* + * Store the current led register value, we need it later + * in set_brightness but that is called in irq context which + * means we can't use rt2500usb_register_read() at that time. + */ + rt2500usb_register_read(rt2x00dev, MAC_CSR20, &rt2x00dev->led_mcu_reg); +#endif /* CONFIG_RT2500USB_LEDS */ /* * Check if the BBP tuning should be disabled. @@ -1550,8 +1588,8 @@ static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev) /* * Initialize hw_mode information. */ - spec->num_modes = 2; - spec->num_rates = 12; + spec->supported_bands = SUPPORT_BAND_2GHZ; + spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM; spec->tx_power_a = NULL; spec->tx_power_bg = txpower; spec->tx_power_default = DEFAULT_TXPOWER; @@ -1572,9 +1610,9 @@ static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev) spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e); spec->channels = rf_vals_bg_2525e; } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) { + spec->supported_bands |= SUPPORT_BAND_5GHZ; spec->num_channels = ARRAY_SIZE(rf_vals_5222); spec->channels = rf_vals_5222; - spec->num_modes = 3; } } @@ -1599,9 +1637,10 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev) rt2500usb_probe_hw_mode(rt2x00dev); /* - * This device requires the beacon ring + * This device requires the atim queue */ - __set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags); + __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags); + __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags); /* * Set the rssi offset. @@ -1691,48 +1730,53 @@ static int rt2500usb_beacon_update(struct ieee80211_hw *hw, struct ieee80211_tx_control *control) { struct rt2x00_dev *rt2x00dev = hw->priv; - struct usb_device *usb_dev = - interface_to_usbdev(rt2x00dev_usb(rt2x00dev)); - struct skb_desc *desc; - struct data_ring *ring; - struct data_entry *beacon; - struct data_entry *guardian; + struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev); + struct rt2x00_intf *intf = vif_to_intf(control->vif); + struct queue_entry_priv_usb_bcn *priv_bcn; + struct skb_frame_desc *skbdesc; int pipe = usb_sndbulkpipe(usb_dev, 1); int length; + u16 reg; + + if (unlikely(!intf->beacon)) + return -ENOBUFS; + + priv_bcn = intf->beacon->priv_data; /* - * Just in case the ieee80211 doesn't set this, - * but we need this queue set for the descriptor - * initialization. + * Add the descriptor in front of the skb. */ - control->queue = IEEE80211_TX_QUEUE_BEACON; - ring = rt2x00lib_get_ring(rt2x00dev, control->queue); + skb_push(skb, intf->beacon->queue->desc_size); + memset(skb->data, 0, intf->beacon->queue->desc_size); /* - * Obtain 2 entries, one for the guardian byte, - * the second for the actual beacon. + * Fill in skb descriptor */ - guardian = rt2x00_get_data_entry(ring); - rt2x00_ring_index_inc(ring); - beacon = rt2x00_get_data_entry(ring); + skbdesc = get_skb_frame_desc(skb); + memset(skbdesc, 0, sizeof(*skbdesc)); + skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED; + skbdesc->data = skb->data + intf->beacon->queue->desc_size; + skbdesc->data_len = skb->len - intf->beacon->queue->desc_size; + skbdesc->desc = skb->data; + skbdesc->desc_len = intf->beacon->queue->desc_size; + skbdesc->entry = intf->beacon; /* - * Add the descriptor in front of the skb. + * Disable beaconing while we are reloading the beacon data, + * otherwise we might be sending out invalid data. */ - skb_push(skb, ring->desc_size); - memset(skb->data, 0, ring->desc_size); + rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®); + rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 0); + rt2x00_set_field16(®, TXRX_CSR19_TBCN, 0); + rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0); + rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg); /* - * Fill in skb descriptor + * mac80211 doesn't provide the control->queue variable + * for beacons. Set our own queue identification so + * it can be used during descriptor initialization. */ - desc = get_skb_desc(skb); - desc->desc_len = ring->desc_size; - desc->data_len = skb->len - ring->desc_size; - desc->desc = skb->data; - desc->data = skb->data + ring->desc_size; - desc->ring = ring; - desc->entry = beacon; - + control->queue = RT2X00_BCN_QUEUE_BEACON; rt2x00lib_write_tx_desc(rt2x00dev, skb, control); /* @@ -1742,27 +1786,29 @@ static int rt2500usb_beacon_update(struct ieee80211_hw *hw, */ length = rt2500usb_get_tx_data_len(rt2x00dev, skb); - usb_fill_bulk_urb(beacon->priv, usb_dev, pipe, - skb->data, length, rt2500usb_beacondone, beacon); + usb_fill_bulk_urb(priv_bcn->urb, usb_dev, pipe, + skb->data, length, rt2500usb_beacondone, + intf->beacon); /* * Second we need to create the guardian byte. * We only need a single byte, so lets recycle * the 'flags' field we are not using for beacons. */ - guardian->flags = 0; - usb_fill_bulk_urb(guardian->priv, usb_dev, pipe, - &guardian->flags, 1, rt2500usb_beacondone, guardian); + priv_bcn->guardian_data = 0; + usb_fill_bulk_urb(priv_bcn->guardian_urb, usb_dev, pipe, + &priv_bcn->guardian_data, 1, rt2500usb_beacondone, + intf->beacon); /* * Send out the guardian byte. */ - usb_submit_urb(guardian->priv, GFP_ATOMIC); + usb_submit_urb(priv_bcn->guardian_urb, GFP_ATOMIC); /* * Enable beacon generation. */ - rt2500usb_kick_tx_queue(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); + rt2500usb_kick_tx_queue(rt2x00dev, control->queue); return 0; } @@ -1793,24 +1839,55 @@ static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = { .link_stats = rt2500usb_link_stats, .reset_tuner = rt2500usb_reset_tuner, .link_tuner = rt2500usb_link_tuner, + .led_brightness = rt2500usb_led_brightness, .write_tx_desc = rt2500usb_write_tx_desc, .write_tx_data = rt2x00usb_write_tx_data, .get_tx_data_len = rt2500usb_get_tx_data_len, .kick_tx_queue = rt2500usb_kick_tx_queue, .fill_rxdone = rt2500usb_fill_rxdone, - .config_mac_addr = rt2500usb_config_mac_addr, - .config_bssid = rt2500usb_config_bssid, - .config_type = rt2500usb_config_type, - .config_preamble = rt2500usb_config_preamble, + .config_intf = rt2500usb_config_intf, + .config_erp = rt2500usb_config_erp, .config = rt2500usb_config, }; +static const struct data_queue_desc rt2500usb_queue_rx = { + .entry_num = RX_ENTRIES, + .data_size = DATA_FRAME_SIZE, + .desc_size = RXD_DESC_SIZE, + .priv_size = sizeof(struct queue_entry_priv_usb_rx), +}; + +static const struct data_queue_desc rt2500usb_queue_tx = { + .entry_num = TX_ENTRIES, + .data_size = DATA_FRAME_SIZE, + .desc_size = TXD_DESC_SIZE, + .priv_size = sizeof(struct queue_entry_priv_usb_tx), +}; + +static const struct data_queue_desc rt2500usb_queue_bcn = { + .entry_num = BEACON_ENTRIES, + .data_size = MGMT_FRAME_SIZE, + .desc_size = TXD_DESC_SIZE, + .priv_size = sizeof(struct queue_entry_priv_usb_bcn), +}; + +static const struct data_queue_desc rt2500usb_queue_atim = { + .entry_num = ATIM_ENTRIES, + .data_size = DATA_FRAME_SIZE, + .desc_size = TXD_DESC_SIZE, + .priv_size = sizeof(struct queue_entry_priv_usb_tx), +}; + static const struct rt2x00_ops rt2500usb_ops = { .name = KBUILD_MODNAME, - .rxd_size = RXD_DESC_SIZE, - .txd_size = TXD_DESC_SIZE, + .max_sta_intf = 1, + .max_ap_intf = 1, .eeprom_size = EEPROM_SIZE, .rf_size = RF_SIZE, + .rx = &rt2500usb_queue_rx, + .tx = &rt2500usb_queue_tx, + .bcn = &rt2500usb_queue_bcn, + .atim = &rt2500usb_queue_atim, .lib = &rt2500usb_rt2x00_ops, .hw = &rt2500usb_mac80211_ops, #ifdef CONFIG_RT2X00_LIB_DEBUGFS |