diff options
| author | Ivo van Doorn <IvDoorn@gmail.com> | 2007-09-25 17:57:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:51:39 -0700 |
| commit | 95ea36275f3c9a1d3d04c217b4b576c657c4e70e (patch) | |
| tree | 55477b946a46aa871a087857a1dc698d74fe79d2 /drivers/net/wireless/rt2x00/rt2500usb.c | |
| parent | b481de9ca074528fe8c429604e2777db8b89806a (diff) | |
[RT2x00]: add driver for Ralink wireless hardware
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2500usb.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2500usb.c | 1837 |
1 files changed, 1837 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c new file mode 100644 index 00000000000..847bd7f58ee --- /dev/null +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -0,0 +1,1837 @@ +/* + Copyright (C) 2004 - 2007 rt2x00 SourceForge Project + <http://rt2x00.serialmonkey.com> + + 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. + */ + +/* + * Set enviroment defines for rt2x00.h + */ +#define DRV_NAME "rt2500usb" + +#include <linux/delay.h> +#include <linux/etherdevice.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/usb.h> + +#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. + */ +static inline void rt2500usb_register_read(const 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_multiread(const 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(const 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_multiwrite(const 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(const struct rt2x00_dev *rt2x00dev) +{ + u16 reg; + unsigned int i; + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2500usb_register_read(rt2x00dev, PHY_CSR8, ®); + if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY)) + break; + udelay(REGISTER_BUSY_DELAY); + } + + return reg; +} + +static void rt2500usb_bbp_write(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, const u8 value) +{ + u16 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. Write failed.\n"); + 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(rt2x00dev, PHY_CSR7, reg); +} + +static void rt2500usb_bbp_read(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, u8 *value) +{ + u16 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"); + 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(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; + return; + } + + rt2500usb_register_read(rt2x00dev, PHY_CSR7, ®); + *value = rt2x00_get_field16(reg, PHY_CSR7_DATA); +} + +static void rt2500usb_rf_write(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, const u32 value) +{ + u16 reg; + unsigned int i; + + if (!word) + return; + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2500usb_register_read(rt2x00dev, PHY_CSR10, ®); + if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY)) + goto rf_write; + udelay(REGISTER_BUSY_DELAY); + } + + 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(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(rt2x00dev, PHY_CSR10, reg); + rt2x00_rf_write(rt2x00dev, word, value); +} + +#ifdef CONFIG_RT2X00_LIB_DEBUGFS +#define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) ) + +static void rt2500usb_read_csr(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, u32 *data) +{ + rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data); +} + +static void rt2500usb_write_csr(const 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 */ + +/* + * Configuration handlers. + */ +static void rt2500usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr) +{ + __le16 reg[3]; + + memset(®, 0, sizeof(reg)); + memcpy(®, addr, ETH_ALEN); + + /* + * The MAC address is passed to us as an array of bytes, + * that array is little endian, so no need for byte ordering. + */ + rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, ®, sizeof(reg)); +} + +static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +{ + __le16 reg[3]; + + memset(®, 0, sizeof(reg)); + memcpy(®, bssid, ETH_ALEN); + + /* + * The BSSID is passed to us as an array of bytes, + * that array is little endian, so no need for byte ordering. + */ + rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, ®, sizeof(reg)); +} + +static void rt2500usb_config_packet_filter(struct rt2x00_dev *rt2x00dev, + const unsigned int filter) +{ + int promisc = !!(filter & IFF_PROMISC); + int multicast = !!(filter & IFF_MULTICAST); + int broadcast = !!(filter & IFF_BROADCAST); + u16 reg; + + rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®); + rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME, !promisc); + rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST, !multicast); + rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, !broadcast); + rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg); +} + +static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type) +{ + u16 reg; + + rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0); + + /* + * Apply hardware packet filter. + */ + rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®); + + if (!is_monitor_present(&rt2x00dev->interface) && + (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA)) + rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS, 1); + else + rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS, 0); + + /* + * If there is a non-monitor interface present + * the packet should be strict (even if a monitor interface is present!). + * When there is only 1 interface present which is in monitor mode + * we should start accepting _all_ frames. + */ + if (is_interface_present(&rt2x00dev->interface)) { + rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC, 1); + rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL, 1); + rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL, 1); + rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1); + } else if (is_monitor_present(&rt2x00dev->interface)) { + rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC, 0); + rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL, 0); + rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL, 0); + rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 0); + } + + rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg); + + /* + * Enable beacon config + */ + rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®); + rt2x00_set_field16(®, TXRX_CSR20_OFFSET, + (PREAMBLE + get_duration(IEEE80211_HEADER, 2)) >> 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, ®); + if (is_interface_present(&rt2x00dev->interface)) { + rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1); + rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1); + } + + rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0); + if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP) + rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 2); + else if (type == IEEE80211_IF_TYPE_STA) + rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 1); + else if (is_monitor_present(&rt2x00dev->interface) && + !is_interface_present(&rt2x00dev->interface)) + rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 0); + + rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg); +} + +static void rt2500usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate) +{ + struct ieee80211_conf *conf = &rt2x00dev->hw->conf; + u16 reg; + u16 value; + u16 preamble; + + if (DEVICE_GET_RATE_FIELD(rate, PREAMBLE)) + preamble = SHORT_PREAMBLE; + else + preamble = PREAMBLE; + + reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATEMASK; + + rt2500usb_register_write(rt2x00dev, TXRX_CSR11, reg); + + rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®); + value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ? + SHORT_DIFS : DIFS) + + PLCP + preamble + get_duration(ACK_SIZE, 10); + rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, value); + rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg); + + rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®); + if (preamble == SHORT_PREAMBLE) + rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE, 1); + else + rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE, 0); + rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg); +} + +static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev, + const int phymode) +{ + struct ieee80211_hw_mode *mode; + struct ieee80211_rate *rate; + + if (phymode == MODE_IEEE80211A) + rt2x00dev->curr_hwmode = HWMODE_A; + else if (phymode == MODE_IEEE80211B) + rt2x00dev->curr_hwmode = HWMODE_B; + else + rt2x00dev->curr_hwmode = HWMODE_G; + + mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode]; + rate = &mode->rates[mode->num_rates - 1]; + + rt2500usb_config_rate(rt2x00dev, rate->val2); + + if (phymode == MODE_IEEE80211B) { + 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, + const int index, const int channel, + const int txpower) +{ + struct rf_channel reg; + + /* + * Fill rf_reg structure. + */ + memcpy(®, &rt2x00dev->spec.channels[index], sizeof(reg)); + + /* + * Set TXpower. + */ + rt2x00_set_field32(®.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[channel - 1]); + if (reg.rf4) + rt2500usb_rf_write(rt2x00dev, 4, reg.rf4); + } + + rt2500usb_rf_write(rt2x00dev, 1, reg.rf1); + rt2500usb_rf_write(rt2x00dev, 2, reg.rf2); + rt2500usb_rf_write(rt2x00dev, 3, reg.rf3); + if (reg.rf4) + rt2500usb_rf_write(rt2x00dev, 4, reg.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, + const int antenna_tx, const int antenna_rx) +{ + u8 r2; + u8 r14; + u16 csr5; + u16 csr6; + + 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 (antenna_tx) { + case ANTENNA_SW_DIVERSITY: + 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: + 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 (antenna_rx) { + case ANTENNA_SW_DIVERSITY: + 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: + 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, + const int short_slot_time, + const int beacon_int) +{ + u16 reg; + + rt2500usb_register_write(rt2x00dev, MAC_CSR10, + short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME); + + rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®); + rt2x00_set_field16(®, TXRX_CSR18_INTERVAL, beacon_int * 4); + rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg); +} + +static void rt2500usb_config(struct rt2x00_dev *rt2x00dev, + const unsigned int flags, + struct ieee80211_conf *conf) +{ + int short_slot_time = conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME; + + if (flags & CONFIG_UPDATE_PHYMODE) + rt2500usb_config_phymode(rt2x00dev, conf->phymode); + if (flags & CONFIG_UPDATE_CHANNEL) + rt2500usb_config_channel(rt2x00dev, conf->channel_val, + conf->channel, conf->power_level); + if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL)) + rt2500usb_config_txpower(rt2x00dev, conf->power_level); + if (flags & CONFIG_UPDATE_ANTENNA) + rt2500usb_config_antenna(rt2x00dev, conf->antenna_sel_tx, + conf->antenna_sel_rx); + if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT)) + rt2500usb_config_duration(rt2x00dev, short_slot_time, + conf->beacon_int); +} + +/* + * 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, ®); + + if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) { + rt2x00_set_field16(®, MAC_CSR20_LINK, 1); + rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 0); + } else if (rt2x00dev->led_mode == LED_MODE_ASUS) { + rt2x00_set_field16(®, MAC_CSR20_LINK, 0); + rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 1); + } else { + rt2x00_set_field16(®, MAC_CSR20_LINK, 1); + rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 1); + } + + 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) +{ + u16 reg; + + /* + * Update FCS error count from register. + */ + rt2500usb_register_read(rt2x00dev, STA_CSR0, ®); + rt2x00dev->link.rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR); + + /* + * Update False CCA count from register. + */ + rt2500usb_register_read(rt2x00dev, STA_CSR3, ®); + rt2x00dev->link.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; + + /* + * 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); + + /* + * 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) + */ + 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. + */ + 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 (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; + } else if (rt2x00dev->link.false_cca > 512 && r17 < up_bound) { + rt2500usb_bbp_write(rt2x00dev, 17, ++r17); + rt2x00dev->link.vgc_level = r17; + } else if (rt2x00dev->link.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, 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_get_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) { + rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®); + reg &= ~0x0002; + } else { + reg = 0x3002; + } + 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); + + 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; +} + +/* + * 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; + } + + rt2x00usb_enable_radio(rt2x00dev); + + /* + * 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); + + /* + * 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_OFF: + rt2500usb_toggle_rx(rt2x00dev, state); + 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 data_desc *txd, + struct data_entry_desc *desc, + struct ieee80211_hdr *ieee80211hdr, + unsigned int length, + struct ieee80211_tx_control *control) +{ + 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, desc->aifs); + rt2x00_set_field32(&word, TXD_W1_CWMIN, desc->cw_min); + rt2x00_set_field32(&word, TXD_W1_CWMAX, desc->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_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)); + rt2x00_set_field32(&word, TXD_W0_ACK, + !(control->flags & IEEE80211_TXCTL_NO_ACK)); + rt2x00_set_field32(&word, TXD_W0_TIMESTAMP, + test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags)); + rt2x00_set_field32(&word, TXD_W0_OFDM, + test_bit(ENTRY_TXD_OFDM_RATE, &desc->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_DATABYTE_COUNT, length); + rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE); + rt2x00_desc_write(txd, 0, word); +} + +/* + * TX data initialization + */ +static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, + unsigned int queue) +{ + u16 reg; + + if (queue != IEEE80211_TX_QUEUE_BEACON) + return; + + rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®); + if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) { + 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 int rt2500usb_fill_rxdone(struct data_entry *entry, + int *signal, int *rssi, int *ofdm, int *size) +{ + struct urb *urb = entry->priv; + struct data_desc *rxd = (struct data_desc *)(entry->skb->data + + (urb->actual_length - + entry->ring->desc_size)); + u32 word0; + u32 word1; + + rt2x00_desc_read(rxd, 0, &word0); + rt2x00_desc_read(rxd, 1, &word1); + + if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR) || + rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR) || + rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR)) + return -EINVAL; + + /* + * Obtain the status about this packet. + */ + *signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL); + *rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) - + entry->ring->rt2x00dev->rssi_offset; + *ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM); + *size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT); + + return 0; +} + +/* + * Interrupt functions. + */ +static void rt2500usb_beacondone(struct urb *urb) +{ + struct data_entry *entry = (struct data_entry *)urb->context; + struct data_ring *ring = entry->ring; + + if (!test_bit(DEVICE_ENABLED_RADIO, &ring->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 (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); + } +} + +/* + * Device probe functions. + */ +static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev) +{ + u16 word; + u8 *mac; + + 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)) { + random_ether_addr(mac); + EEPROM(rt2x00dev, "MAC: " MAC_FMT "\n", MAC_ARG(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, 0); + rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 0); + rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE, 0); + 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); + } + + rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word); + if (word == 0xffff) { + rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40); + 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); + } + + 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_rev(&rt2x00dev->chip, 0xffff0)) { + 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->hw->conf.antenna_sel_tx = + rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT); + rt2x00dev->hw->conf.antenna_sel_rx = + rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT); + + /* + * Store led mode, for correct led behaviour. + */ + rt2x00dev->led_mode = + rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); + + /* + * 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 | + IEEE80211_HW_MONITOR_DURING_OPER | + IEEE80211_HW_NO_PROBE_FILTERING; + 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->num_modes = 2; + spec->num_rates = 12; + 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->num_channels = ARRAY_SIZE(rf_vals_5222); + spec->channels = rf_vals_5222; + spec->num_modes = 3; + } +} + +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); + + /* + * USB devices require scheduled packet filter toggling + *This device requires the beacon ring + */ + __set_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags); + __set_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags); + + /* + * Set the rssi offset. + */ + rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET; + + return 0; +} + +/* + * IEEE80211 stack callback functions. + */ +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 = + interface_to_usbdev(rt2x00dev_usb(rt2x00dev)); + struct data_ring *ring = + rt2x00lib_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); + struct data_entry *beacon; + struct data_entry *guardian; + int length; + + /* + * Just in case the ieee80211 doesn't set this, + * but we need this queue set for the descriptor + * initialization. + */ + control->queue = IEEE80211_TX_QUEUE_BEACON; + + /* + * Obtain 2 entries, one for the guardian byte, + * the second for the actual beacon. + */ + guardian = rt2x00_get_data_entry(ring); + rt2x00_ring_index_inc(ring); + beacon = rt2x00_get_data_entry(ring); + + /* + * First we create the beacon. + */ + skb_push(skb, ring->desc_size); + rt2x00lib_write_tx_desc(rt2x00dev, (struct data_desc *)skb->data, + (struct ieee80211_hdr *)(skb->data + + ring->desc_size), + skb->len - ring->desc_size, control); + + /* + * Length passed to usb_fill_urb cannot be an odd number, + * so add 1 byte to make it even. + */ + length = skb->len; + if (length % 2) + length++; + + usb_fill_bulk_urb(beacon->priv, usb_dev, + usb_sndbulkpipe(usb_dev, 1), + skb->data, length, rt2500usb_beacondone, beacon); + + beacon->skb = skb; + + /* + * 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, + usb_sndbulkpipe(usb_dev, 1), + &guardian->flags, 1, rt2500usb_beacondone, guardian); + + /* + * Send out the guardian byte. + */ + usb_submit_urb(guardian->priv, GFP_ATOMIC); + + /* + * Enable beacon generation. + */ + rt2500usb_kick_tx_queue(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); + + return 0; +} + +static const struct ieee80211_ops rt2500usb_mac80211_ops = { + .tx = rt2x00mac_tx, + .add_interface = rt2x00mac_add_interface, + .remove_interface = rt2x00mac_remove_interface, + .config = rt2x00mac_config, + .config_interface = rt2x00mac_config_interface, + .set_multicast_list = rt2x00mac_set_multicast_list, + .get_stats = rt2x00mac_get_stats, + .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, + .set_device_state = rt2500usb_set_device_state, + .link_stats = rt2500usb_link_stats, + .reset_tuner = rt2500usb_reset_tuner, + .link_tuner = rt2500usb_link_tuner, + .write_tx_desc = rt2500usb_write_tx_desc, + .write_tx_data = rt2x00usb_write_tx_data, + .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_packet_filter = rt2500usb_config_packet_filter, + .config_type = rt2500usb_config_type, + .config = rt2500usb_config, +}; + +static const struct rt2x00_ops rt2500usb_ops = { + .name = DRV_NAME, + .rxd_size = RXD_DESC_SIZE, + .txd_size = TXD_DESC_SIZE, + .eeprom_size = EEPROM_SIZE, + .rf_size = RF_SIZE, + .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, 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 = DRV_NAME, + .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); |