/* Copyright (C) 2004 - 2008 rt2x00 SourceForge Project This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Module: rt2500usb Abstract: rt2500usb device specific routines. Supported chipsets: RT2570. */ #include #include #include #include #include #include #include "rt2x00.h" #include "rt2x00usb.h" #include "rt2500usb.h" /* * Register access. * All access to the CSR registers will go through the methods * rt2500usb_register_read and rt2500usb_register_write. * BBP and RF register require indirect register access, * and use the CSR registers BBPCSR and RFCSR to achieve this. * These indirect registers work with busy bits, * and we will try maximal REGISTER_BUSY_COUNT times to access * the register while taking a REGISTER_BUSY_DELAY us delay * between each attampt. When the busy bit is still set at that time, * the access attempt is considered to have failed, * and we will print an error. * If the usb_cache_mutex is already held then the _lock variants must * be used instead. */ static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev, const unsigned int offset, u16 *value) { __le16 reg; rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN, offset, ®, sizeof(u16), REGISTER_TIMEOUT); *value = le16_to_cpu(reg); } static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev, const unsigned int offset, u16 *value) { __le16 reg; rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN, offset, ®, sizeof(u16), REGISTER_TIMEOUT); *value = le16_to_cpu(reg); } static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev, const unsigned int offset, void *value, const u16 length) { int timeout = REGISTER_TIMEOUT * (length / sizeof(u16)); rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN, offset, value, length, timeout); } static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev, const unsigned int offset, u16 value) { __le16 reg = cpu_to_le16(value); rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT, offset, ®, sizeof(u16), REGISTER_TIMEOUT); } static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev, const unsigned int offset, u16 value) { __le16 reg = cpu_to_le16(value); rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT, offset, ®, sizeof(u16), REGISTER_TIMEOUT); } static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev, const unsigned int offset, void *value, const u16 length) { int timeout = REGISTER_TIMEOUT * (length / sizeof(u16)); rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT, offset, value, length, timeout); } static u16 rt2500usb_bbp_check(struct rt2x00_dev *rt2x00dev) { u16 reg; unsigned int i; for (i = 0; i < REGISTER_BUSY_COUNT; i++) { rt2500usb_register_read_lock(rt2x00dev, PHY_CSR8, ®); if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY)) break; udelay(REGISTER_BUSY_DELAY); } return reg; } static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev, const unsigned int word, const u8 value) { u16 reg; mutex_lock(&rt2x00dev->usb_cache_mutex); /* * Wait until the BBP becomes ready. */ reg = rt2500usb_bbp_check(rt2x00dev); if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) { ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n"); mutex_unlock(&rt2x00dev->usb_cache_mutex); return; } /* * Write the data into the BBP. */ reg = 0; rt2x00_set_field16(®, PHY_CSR7_DATA, value); rt2x00_set_field16(®, PHY_CSR7_REG_ID, word); rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 0); rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg); mutex_unlock(&rt2x00dev->usb_cache_mutex); } static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev, const unsigned int word, u8 *value) { u16 reg; mutex_lock(&rt2x00dev->usb_cache_mutex); /* * Wait until the BBP becomes ready. */ reg = rt2500usb_bbp_check(rt2x00dev); if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) { ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n"); return; } /* * Write the request into the BBP. */ reg = 0; rt2x00_set_field16(®, PHY_CSR7_REG_ID, word); rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 1); rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg); /* * Wait until the BBP becomes ready. */ reg = rt2500usb_bbp_check(rt2x00dev); if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) { ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n"); *value = 0xff; mutex_unlock(&rt2x00dev->usb_cache_mutex); return; } rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, ®); *value = rt2x00_get_field16(reg, PHY_CSR7_DATA); mutex_unlock(&rt2x00dev->usb_cache_mutex); } static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev, const unsigned int word, const u32 value) { u16 reg; unsigned int i; if (!word) return; mutex_lock(&rt2x00dev->usb_cache_mutex); for (i = 0; i < REGISTER_BUSY_COUNT; i++) { rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, ®); if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY)) goto rf_write; udelay(REGISTER_BUSY_DELAY); } mutex_unlock(&rt2x00dev->usb_cache_mutex); ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n"); return; rf_write: reg = 0; rt2x00_set_field16(®, PHY_CSR9_RF_VALUE, value); rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg); reg = 0; rt2x00_set_field16(®, PHY_CSR10_RF_VALUE, value >> 16); rt2x00_set_field16(®, PHY_CSR10_RF_NUMBER_OF_BITS, 20); rt2x00_set_field16(®, PHY_CSR10_RF_IF_SELECT, 0); rt2x00_set_field16(®, PHY_CSR10_RF_BUSY, 1); rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg); rt2x00_rf_write(rt2x00dev, word, value); mutex_unlock(&rt2x00dev->usb_cache_mutex); } #ifdef CONFIG_RT2X00_LIB_DEBUGFS #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) ) static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev, const unsigned int word, u32 *data) { rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data); } static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev, const unsigned int word, u32 data) { rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data); } static const struct rt2x00debug rt2500usb_rt2x00debug = { .owner = THIS_MODULE, .csr = { .read = rt2500usb_read_csr, .write = rt2500usb_write_csr, .word_size = sizeof(u16), .word_count = CSR_REG_SIZE / sizeof(u16), }, .eeprom = { .read = rt2x00_eeprom_read, .write = rt2x00_eeprom_write, .word_size = sizeof(u16), .word_count = EEPROM_SIZE / sizeof(u16), }, .bbp = { .read = rt2500usb_bbp_read, .write = rt2500usb_bbp_write, .word_size = sizeof(u8), .word_count = BBP_SIZE / sizeof(u8), }, .rf = { .read = rt2x00_rf_read, .write = rt2500usb_rf_write, .word_size = sizeof(u32), .word_count = RF_SIZE / sizeof(u32), }, }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ #ifdef CONFIG_RT2500USB_LEDS static void rt2500usb_led_brightness(struct led_classdev *led_cdev, enum led_brightness brightness) { 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; 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 */ /* * 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; 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 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); } if (flags & CONFIG_UPDATE_MAC) rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac, (3 * sizeof(__le16))); if (flags & CONFIG_UPDATE_BSSID) rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid, (3 * sizeof(__le16))); } static int rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_erp *erp) { u16 reg; /* * When in atomic context, we should let rt2x00lib * try this configuration again later. */ if (in_atomic()) return -EAGAIN; rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®); 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, !!erp->short_preamble); rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg); return 0; } static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev, const int basic_rate_mask) { rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask); } static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev, struct rf_channel *rf, const int txpower) { /* * Set TXpower. */ rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower)); /* * For RT2525E we should first set the channel to half band higher. */ if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) { static const u32 vals[] = { 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2, 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba, 0x000008ba, 0x000008be, 0x000008b7, 0x00000902, 0x00000902, 0x00000906 }; rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]); if (rf->rf4) rt2500usb_rf_write(rt2x00dev, 4, rf->rf4); } rt2500usb_rf_write(rt2x00dev, 1, rf->rf1); rt2500usb_rf_write(rt2x00dev, 2, rf->rf2); rt2500usb_rf_write(rt2x00dev, 3, rf->rf3); if (rf->rf4) rt2500usb_rf_write(rt2x00dev, 4, rf->rf4); } static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev, const int txpower) { u32 rf3; rt2x00_rf_read(rt2x00dev, 3, &rf3); rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower)); rt2500usb_rf_write(rt2x00dev, 3, rf3); } static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant) { u8 r2; u8 r14; 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); rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6); /* * Configure the TX antenna. */ switch (ant->tx) { case ANTENNA_HW_DIVERSITY: rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1); rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1); rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1); break; case ANTENNA_A: rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0); rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0); rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0); break; 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); break; } /* * Configure the RX antenna. */ switch (ant->rx) { case ANTENNA_HW_DIVERSITY: rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1); break; case ANTENNA_A: rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0); break; case ANTENNA_B: default: rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2); break; } /* * RT2525E and RT5222 need to flip TX I/Q */ if (rt2x00_rf(&rt2x00dev->chip, RF2525E) || rt2x00_rf(&rt2x00dev->chip, RF5222)) { rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1); rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1); rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1); /* * RT2525E does not need RX I/Q Flip. */ if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0); } else { rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0); rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0); } rt2500usb_bbp_write(rt2x00dev, 2, r2); rt2500usb_bbp_write(rt2x00dev, 14, r14); rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5); rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6); } static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_conf *libconf) { 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, libconf->conf->beacon_int * 4); rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg); } static void rt2500usb_config(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_conf *libconf, const unsigned int flags) { if (flags & CONFIG_UPDATE_PHYMODE) rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates); if (flags & CONFIG_UPDATE_CHANNEL) rt2500usb_config_channel(rt2x00dev, &libconf->rf, libconf->conf->power_level); if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL)) rt2500usb_config_txpower(rt2x00dev, libconf->conf->power_level); if (flags & CONFIG_UPDATE_ANTENNA) rt2500usb_config_antenna(rt2x00dev, &libconf->ant); if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT)) rt2500usb_config_duration(rt2x00dev, libconf); } /* * Link tuning */ static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev, struct link_qual *qual) { u16 reg; /* * Update FCS error count from register. */ rt2500usb_register_read(rt2x00dev, STA_CSR0, ®); qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR); /* * Update False CCA count from register. */ rt2500usb_register_read(rt2x00dev, STA_CSR3, ®); qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR); } static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev) { u16 eeprom; u16 value; rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom); value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW); rt2500usb_bbp_write(rt2x00dev, 24, value); rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom); value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW); rt2500usb_bbp_write(rt2x00dev, 25, value); rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom); value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW); rt2500usb_bbp_write(rt2x00dev, 61, value); rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom); value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER); rt2500usb_bbp_write(rt2x00dev, 17, value); rt2x00dev->link.vgc_level = value; } static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev) { int rssi = rt2x00_get_link_rssi(&rt2x00dev->link); u16 bbp_thresh; u16 vgc_bound; u16 sens; u16 r24; u16 r25; u16 r61; u16 r17_sens; u8 r17; u8 up_bound; 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. */ rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh); bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD); rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24); rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25); rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61); if ((rssi + bbp_thresh) > 0) { r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH); r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH); r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH); } else { r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW); r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW); r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW); } rt2500usb_bbp_write(rt2x00dev, 24, r24); rt2500usb_bbp_write(rt2x00dev, 25, r25); rt2500usb_bbp_write(rt2x00dev, 61, r61); /* * 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) */ if (rssi >= -40) { if (r17 != 0x60) rt2500usb_bbp_write(rt2x00dev, 17, 0x60); return; } /* * Special big-R17 for short distance */ if (rssi >= -58) { sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW); if (r17 != sens) rt2500usb_bbp_write(rt2x00dev, 17, sens); return; } /* * Special mid-R17 for middle distance */ if (rssi >= -74) { sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH); if (r17 != sens) rt2500usb_bbp_write(rt2x00dev, 17, sens); return; } /* * Leave short or middle distance condition, restore r17 * to the dynamic tuning range. */ low_bound = 0x32; if (rssi < -77) up_bound -= (-77 - rssi); if (up_bound < low_bound) up_bound = low_bound; if (r17 > up_bound) { rt2500usb_bbp_write(rt2x00dev, 17, up_bound); rt2x00dev->link.vgc_level = 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) { rt2500usb_bbp_write(rt2x00dev, 17, --r17); rt2x00dev->link.vgc_level = r17; } } /* * Initialization functions. */ static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev) { u16 reg; rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001, USB_MODE_TEST, REGISTER_TIMEOUT); rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308, 0x00f0, REGISTER_TIMEOUT); rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®); rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, 1); rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg); rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111); rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11); rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®); rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 1); rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 1); rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0); rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg); rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®); rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0); rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0); 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); rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1, 12); rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1_VALID, 1); rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg); rt2500usb_register_read(rt2x00dev, TXRX_CSR6, ®); rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0, 10); rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0_VALID, 1); rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1, 11); rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1_VALID, 1); rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg); rt2500usb_register_read(rt2x00dev, TXRX_CSR7, ®); rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0, 7); rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0_VALID, 1); rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1, 6); rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1_VALID, 1); rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg); rt2500usb_register_read(rt2x00dev, TXRX_CSR8, ®); rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0, 5); rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0_VALID, 1); rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1, 0); rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1_VALID, 0); rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg); rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f); rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d); if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE)) return -EBUSY; rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®); rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0); rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0); rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1); rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg); if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) { rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®); rt2x00_set_field16(®, PHY_CSR2_LNA, 0); } else { reg = 0; rt2x00_set_field16(®, PHY_CSR2_LNA, 1); rt2x00_set_field16(®, PHY_CSR2_LNA_MODE, 3); } rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg); rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002); rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053); rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee); rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000); rt2500usb_register_read(rt2x00dev, MAC_CSR8, ®); rt2x00_set_field16(®, MAC_CSR8_MAX_FRAME_UNIT, rt2x00dev->rx->data_size); rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg); rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®); rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER); rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, 0xff); rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg); rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®); rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, 90); rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg); rt2500usb_register_read(rt2x00dev, PHY_CSR4, ®); rt2x00_set_field16(®, PHY_CSR4_LOW_RF_LE, 1); rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg); rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®); rt2x00_set_field16(®, TXRX_CSR1_AUTO_SEQUENCE, 1); rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg); return 0; } static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev) { unsigned int i; u16 eeprom; u8 value; u8 reg_id; for (i = 0; i < REGISTER_BUSY_COUNT; i++) { rt2500usb_bbp_read(rt2x00dev, 0, &value); if ((value != 0xff) && (value != 0x00)) goto continue_csr_init; NOTICE(rt2x00dev, "Waiting for BBP register.\n"); udelay(REGISTER_BUSY_DELAY); } ERROR(rt2x00dev, "BBP register access failed, aborting.\n"); return -EACCES; continue_csr_init: rt2500usb_bbp_write(rt2x00dev, 3, 0x02); rt2500usb_bbp_write(rt2x00dev, 4, 0x19); rt2500usb_bbp_write(rt2x00dev, 14, 0x1c); rt2500usb_bbp_write(rt2x00dev, 15, 0x30); rt2500usb_bbp_write(rt2x00dev, 16, 0xac); rt2500usb_bbp_write(rt2x00dev, 18, 0x18); rt2500usb_bbp_write(rt2x00dev, 19, 0xff); rt2500usb_bbp_write(rt2x00dev, 20, 0x1e); rt2500usb_bbp_write(rt2x00dev, 21, 0x08); rt2500usb_bbp_write(rt2x00dev, 22, 0x08); rt2500usb_bbp_write(rt2x00dev, 23, 0x08); rt2500usb_bbp_write(rt2x00dev, 24, 0x80); rt2500usb_bbp_write(rt2x00dev, 25, 0x50); rt2500usb_bbp_write(rt2x00dev, 26, 0x08); rt2500usb_bbp_write(rt2x00dev, 27, 0x23); rt2500usb_bbp_write(rt2x00dev, 30, 0x10); rt2500usb_bbp_write(rt2x00dev, 31, 0x2b); rt2500usb_bbp_write(rt2x00dev, 32, 0xb9); rt2500usb_bbp_write(rt2x00dev, 34, 0x12); rt2500usb_bbp_write(rt2x00dev, 35, 0x50); rt2500usb_bbp_write(rt2x00dev, 39, 0xc4); rt2500usb_bbp_write(rt2x00dev, 40, 0x02); rt2500usb_bbp_write(rt2x00dev, 41, 0x60); rt2500usb_bbp_write(rt2x00dev, 53, 0x10); rt2500usb_bbp_write(rt2x00dev, 54, 0x18); rt2500usb_bbp_write(rt2x00dev, 56, 0x08); rt2500usb_bbp_write(rt2x00dev, 57, 0x10); rt2500usb_bbp_write(rt2x00dev, 58, 0x08); rt2500usb_bbp_write(rt2x00dev, 61, 0x60); rt2500usb_bbp_write(rt2x00dev, 62, 0x10); rt2500usb_bbp_write(rt2x00dev, 75, 0xff); 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); rt2500usb_bbp_write(rt2x00dev, reg_id, value); } } return 0; } /* * Device state switch handlers. */ static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state) { u16 reg; rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®); rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, state == STATE_RADIO_RX_OFF); rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg); } static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev) { /* * Initialize all registers. */ if (rt2500usb_init_registers(rt2x00dev) || rt2500usb_init_bbp(rt2x00dev)) { ERROR(rt2x00dev, "Register initialization failed.\n"); return -EIO; } return 0; } static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev) { rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121); rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121); /* * Disable synchronisation. */ rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0); rt2x00usb_disable_radio(rt2x00dev); } static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) { u16 reg; u16 reg2; unsigned int i; char put_to_sleep; char bbp_state; char rf_state; put_to_sleep = (state != STATE_AWAKE); reg = 0; rt2x00_set_field16(®, MAC_CSR17_BBP_DESIRE_STATE, state); rt2x00_set_field16(®, MAC_CSR17_RF_DESIRE_STATE, state); rt2x00_set_field16(®, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep); rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg); rt2x00_set_field16(®, MAC_CSR17_SET_STATE, 1); rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg); /* * Device is not guaranteed to be in the requested state yet. * We must wait until the register indicates that the * device has entered the correct state. */ for (i = 0; i < REGISTER_BUSY_COUNT; i++) { rt2500usb_register_read(rt2x00dev, MAC_CSR17, ®2); bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE); rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE); if (bbp_state == state && rf_state == state) return 0; rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg); msleep(30); } NOTICE(rt2x00dev, "Device failed to enter state %d, " "current device state: bbp %d and rf %d.\n", state, bbp_state, rf_state); return -EBUSY; } static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) { int retval = 0; switch (state) { case STATE_RADIO_ON: retval = rt2500usb_enable_radio(rt2x00dev); break; case STATE_RADIO_OFF: rt2500usb_disable_radio(rt2x00dev); break; case STATE_RADIO_RX_ON: case STATE_RADIO_RX_ON_LINK: rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON); break; case STATE_RADIO_RX_OFF: case STATE_RADIO_RX_OFF_LINK: rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF); break; case STATE_DEEP_SLEEP: case STATE_SLEEP: case STATE_STANDBY: case STATE_AWAKE: retval = rt2500usb_set_state(rt2x00dev, state); break; default: retval = -ENOTSUPP; break; } return retval; } /* * TX descriptor initialization */ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb, struct txentry_desc *txdesc, struct ieee80211_tx_control *control) { struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); __le32 *txd = skbdesc->desc; u32 word; /* * Start writing the descriptor words. */ rt2x00_desc_read(txd, 1, &word); rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER); 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, 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, &txdesc->flags)); rt2x00_set_field32(&word, TXD_W0_ACK, test_bit(ENTRY_TXD_ACK, &txdesc->flags)); 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)); rt2x00_set_field32(&word, TXD_W0_NEW_SEQ, !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT)); 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); } static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb) { int length; /* * The length _must_ be a multiple of 2, * but it must _not_ be a multiple of the USB packet size. */ length = roundup(skb->len, 2); length += (2 * !(length % rt2x00dev->usb_maxpacket)); return length; } /* * TX data initialization */ static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, const unsigned int queue) { u16 reg; 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. * To prevent this we need to register the TXRX_CSR19 * register several times. */ rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg); rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0); rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg); rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0); rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg); } } /* * RX control handlers */ static void rt2500usb_fill_rxdone(struct queue_entry *entry, struct rxdone_entry_desc *rxdesc) { 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); rxdesc->flags = 0; if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR)) rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC; if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR)) rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC; /* * Obtain the status about this packet. */ rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL); rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) - entry->queue->rt2x00dev->rssi_offset; rxdesc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM); 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->data = entry->skb->data; skbdesc->data_len = rxdesc->size; skbdesc->desc = rxd; skbdesc->desc_len = entry->queue->desc_size; } /* * Interrupt functions. */ static void rt2500usb_beacondone(struct urb *urb) { 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, &entry->queue->rt2x00dev->flags)) return; /* * Check if this was the guardian beacon, * if that was the case we need to send the real beacon now. * Otherwise we should free the sk_buffer, the device * should be doing the rest of the work now. */ 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; } } /* * Device probe functions. */ static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev) { u16 word; u8 *mac; u8 bbp; rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE); /* * Start validation of the data that has been read. */ mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0); if (!is_valid_ether_addr(mac)) { DECLARE_MAC_BUF(macbuf); random_ether_addr(mac); EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac)); } rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2); rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, ANTENNA_SW_DIVERSITY); rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, ANTENNA_SW_DIVERSITY); rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE, LED_MODE_DEFAULT); rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0); rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0); rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522); rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word); EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word); } rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0); rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0); rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0); rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word); EEPROM(rt2x00dev, "NIC: 0x%04x\n", word); } rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI, DEFAULT_RSSI_OFFSET); rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word); EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word); } rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45); rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word); 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); } rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48); 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); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40); rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80); rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word); EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word); } rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40); rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50); rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word); EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word); } rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word); if (word == 0xffff) { rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60); rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d); rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word); EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word); } return 0; } static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev) { u16 reg; u16 value; u16 eeprom; /* * Read EEPROM word for configuration. */ rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom); /* * Identify RF chipset. */ value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE); rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®); rt2x00_set_chip(rt2x00dev, RT2570, value, reg); if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) { ERROR(rt2x00dev, "Invalid RT chipset detected.\n"); return -ENODEV; } if (!rt2x00_rf(&rt2x00dev->chip, RF2522) && !rt2x00_rf(&rt2x00dev->chip, RF2523) && !rt2x00_rf(&rt2x00dev->chip, RF2524) && !rt2x00_rf(&rt2x00dev->chip, RF2525) && !rt2x00_rf(&rt2x00dev->chip, RF2525E) && !rt2x00_rf(&rt2x00dev->chip, RF5222)) { ERROR(rt2x00dev, "Invalid RF chipset detected.\n"); return -ENODEV; } /* * Identify default antenna configuration. */ rt2x00dev->default_ant.tx = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT); rt2x00dev->default_ant.rx = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT); /* * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead. * I am not 100% sure about this, but the legacy drivers do not * indicate antenna swapping in software is required when * diversity is enabled. */ if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY) rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY; if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY) rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY; /* * Store led mode, for correct led behaviour. */ #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. */ rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom); if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE)) __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags); /* * Read the RSSI <-> dBm offset information. */ rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom); rt2x00dev->rssi_offset = rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI); return 0; } /* * RF value list for RF2522 * Supports: 2.4 GHz */ static const struct rf_channel rf_vals_bg_2522[] = { { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 }, { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 }, { 3, 0x00002050, 0x000c2002, 0x00000101, 0 }, { 4, 0x00002050, 0x000c2016, 0x00000101, 0 }, { 5, 0x00002050, 0x000c202a, 0x00000101, 0 }, { 6, 0x00002050, 0x000c203e, 0x00000101, 0 }, { 7, 0x00002050, 0x000c2052, 0x00000101, 0 }, { 8, 0x00002050, 0x000c2066, 0x00000101, 0 }, { 9, 0x00002050, 0x000c207a, 0x00000101, 0 }, { 10, 0x00002050, 0x000c208e, 0x00000101, 0 }, { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 }, { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 }, { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 }, { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 }, }; /* * RF value list for RF2523 * Supports: 2.4 GHz */ static const struct rf_channel rf_vals_bg_2523[] = { { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b }, { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b }, { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b }, { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b }, { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b }, { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b }, { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b }, { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b }, { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b }, { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b }, { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b }, { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b }, { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b }, { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 }, }; /* * RF value list for RF2524 * Supports: 2.4 GHz */ static const struct rf_channel rf_vals_bg_2524[] = { { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b }, { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b }, { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b }, { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b }, { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b }, { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b }, { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b }, { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b }, { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b }, { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b }, { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b }, { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b }, { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b }, { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 }, }; /* * RF value list for RF2525 * Supports: 2.4 GHz */ static const struct rf_channel rf_vals_bg_2525[] = { { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b }, { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b }, { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b }, { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b }, { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b }, { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b }, { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b }, { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b }, { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b }, { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b }, { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b }, { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b }, { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b }, { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 }, }; /* * RF value list for RF2525e * Supports: 2.4 GHz */ static const struct rf_channel rf_vals_bg_2525e[] = { { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b }, { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 }, { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b }, { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 }, { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b }, { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 }, { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b }, { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 }, { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b }, { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 }, { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b }, { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 }, { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b }, { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 }, }; /* * RF value list for RF5222 * Supports: 2.4 GHz & 5.2 GHz */ static const struct rf_channel rf_vals_5222[] = { { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b }, { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b }, { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b }, { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b }, { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b }, { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b }, { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b }, { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b }, { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b }, { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b }, { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b }, { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b }, { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b }, { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b }, /* 802.11 UNI / HyperLan 2 */ { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f }, { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f }, { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f }, { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f }, { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f }, { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f }, { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f }, { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f }, /* 802.11 HyperLan 2 */ { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f }, { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f }, { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f }, { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f }, { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f }, { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f }, { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f }, { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f }, { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f }, { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f }, /* 802.11 UNII */ { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f }, { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 }, { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 }, { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 }, { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 }, }; static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev) { struct hw_mode_spec *spec = &rt2x00dev->spec; u8 *txpower; unsigned int i; /* * Initialize all hw fields. */ rt2x00dev->hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE | IEEE80211_HW_RX_INCLUDES_FCS | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE; rt2x00dev->hw->max_signal = MAX_SIGNAL; rt2x00dev->hw->max_rssi = MAX_RX_SSI; rt2x00dev->hw->queues = 2; SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev); SET_IEEE80211_PERM_ADDR(rt2x00dev->hw, rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0)); /* * Convert tx_power array in eeprom. */ txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START); for (i = 0; i < 14; i++) txpower[i] = TXPOWER_FROM_DEV(txpower[i]); /* * Initialize hw_mode information. */ 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; if (rt2x00_rf(&rt2x00dev->chip, RF2522)) { spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522); spec->channels = rf_vals_bg_2522; } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) { spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523); spec->channels = rf_vals_bg_2523; } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) { spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524); spec->channels = rf_vals_bg_2524; } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) { spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525); spec->channels = rf_vals_bg_2525; } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) { 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; } } static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; /* * Allocate eeprom data. */ retval = rt2500usb_validate_eeprom(rt2x00dev); if (retval) return retval; retval = rt2500usb_init_eeprom(rt2x00dev); if (retval) return retval; /* * Initialize hw specifications. */ rt2500usb_probe_hw_mode(rt2x00dev); /* * This device requires the atim queue */ __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags); __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags); /* * Set the rssi offset. */ rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET; return 0; } /* * IEEE80211 stack callback functions. */ static void rt2500usb_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, int mc_count, struct dev_addr_list *mc_list) { struct rt2x00_dev *rt2x00dev = hw->priv; u16 reg; /* * Mask off any flags we are going to ignore from * the total_flags field. */ *total_flags &= FIF_ALLMULTI | FIF_FCSFAIL | FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | FIF_PROMISC_IN_BSS; /* * Apply some rules to the filters: * - Some filters imply different filters to be set. * - Some things we can't filter out at all. */ if (mc_count) *total_flags |= FIF_ALLMULTI; if (*total_flags & FIF_OTHER_BSS || *total_flags & FIF_PROMISC_IN_BSS) *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS; /* * Check if there is any work left for us. */ if (rt2x00dev->packet_filter == *total_flags) return; rt2x00dev->packet_filter = *total_flags; /* * When in atomic context, reschedule and let rt2x00lib * call this function again. */ if (in_atomic()) { queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work); return; } /* * Start configuration steps. * Note that the version error will always be dropped * and broadcast frames will always be accepted since * there is no filter for it at this time. */ rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®); rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC, !(*total_flags & FIF_FCSFAIL)); rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL, !(*total_flags & FIF_PLCPFAIL)); rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL, !(*total_flags & FIF_CONTROL)); rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME, !(*total_flags & FIF_PROMISC_IN_BSS)); rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS, !(*total_flags & FIF_PROMISC_IN_BSS)); rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1); rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST, !(*total_flags & FIF_ALLMULTI)); rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0); rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg); } static int rt2500usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb, struct ieee80211_tx_control *control) { struct rt2x00_dev *rt2x00dev = hw->priv; 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; /* * Add the descriptor in front of the skb. */ skb_push(skb, intf->beacon->queue->desc_size); memset(skb->data, 0, intf->beacon->queue->desc_size); /* * Fill in skb descriptor */ 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; /* * Disable beaconing while we are reloading the beacon data, * otherwise we might be sending out invalid data. */ 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); /* * mac80211 doesn't provide the control->queue variable * for beacons. Set our own queue identification so * it can be used during descriptor initialization. */ control->queue = RT2X00_BCN_QUEUE_BEACON; rt2x00lib_write_tx_desc(rt2x00dev, skb, control); /* * USB devices cannot blindly pass the skb->len as the * length of the data to usb_fill_bulk_urb. Pass the skb * to the driver to determine what the length should be. */ length = rt2500usb_get_tx_data_len(rt2x00dev, skb); 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. */ 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(priv_bcn->guardian_urb, GFP_ATOMIC); /* * Enable beacon generation. */ rt2500usb_kick_tx_queue(rt2x00dev, control->queue); return 0; } static const struct ieee80211_ops rt2500usb_mac80211_ops = { .tx = rt2x00mac_tx, .start = rt2x00mac_start, .stop = rt2x00mac_stop, .add_interface = rt2x00mac_add_interface, .remove_interface = rt2x00mac_remove_interface, .config = rt2x00mac_config, .config_interface = rt2x00mac_config_interface, .configure_filter = rt2500usb_configure_filter, .get_stats = rt2x00mac_get_stats, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2x00mac_conf_tx, .get_tx_stats = rt2x00mac_get_tx_stats, .beacon_update = rt2500usb_beacon_update, }; static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = { .probe_hw = rt2500usb_probe_hw, .initialize = rt2x00usb_initialize, .uninitialize = rt2x00usb_uninitialize, .init_rxentry = rt2x00usb_init_rxentry, .init_txentry = rt2x00usb_init_txentry, .set_device_state = rt2500usb_set_device_state, .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_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, .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 .debugfs = &rt2500usb_rt2x00debug, #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ }; /* * rt2500usb module information. */ static struct usb_device_id rt2500usb_device_table[] = { /* ASUS */ { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Belkin */ { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Cisco Systems */ { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Conceptronic */ { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) }, /* D-LINK */ { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Gigabyte */ { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Hercules */ { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Melco */ { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) }, /* MSI */ { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Ralink */ { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) }, { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Siemens */ { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) }, /* SMC */ { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Spairon */ { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Trust */ { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) }, /* Zinwell */ { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) }, { 0, } }; MODULE_AUTHOR(DRV_PROJECT); MODULE_VERSION(DRV_VERSION); MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver."); MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards"); MODULE_DEVICE_TABLE(usb, rt2500usb_device_table); MODULE_LICENSE("GPL"); static struct usb_driver rt2500usb_driver = { .name = KBUILD_MODNAME, .id_table = rt2500usb_device_table, .probe = rt2x00usb_probe, .disconnect = rt2x00usb_disconnect, .suspend = rt2x00usb_suspend, .resume = rt2x00usb_resume, }; static int __init rt2500usb_init(void) { return usb_register(&rt2500usb_driver); } static void __exit rt2500usb_exit(void) { usb_deregister(&rt2500usb_driver); } module_init(rt2500usb_init); module_exit(rt2500usb_exit);