diff options
Diffstat (limited to 'package/rt2x00/src/rt61pci.c')
| -rw-r--r-- | package/rt2x00/src/rt61pci.c | 2324 |
1 files changed, 2324 insertions, 0 deletions
diff --git a/package/rt2x00/src/rt61pci.c b/package/rt2x00/src/rt61pci.c new file mode 100644 index 0000000000..fe90dd214c --- /dev/null +++ b/package/rt2x00/src/rt61pci.c @@ -0,0 +1,2324 @@ +/* + 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: rt61pci + Abstract: rt61pci device specific routines. + Supported chipsets: RT2561, RT2561s, RT2661. + */ + +/* + * Set enviroment defines for rt2x00.h + */ +#define DRV_NAME "rt61pci" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/version.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/delay.h> +#include <linux/etherdevice.h> +#include <linux/eeprom_93cx6.h> + +#include <asm/io.h> + +#include "rt2x00.h" +#include "rt2x00pci.h" +#include "rt61pci.h" + +/* + * Register access. + * BBP and RF register require indirect register access, + * and use the CSR registers PHY_CSR3 and PHY_CSR4 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 u32 rt61pci_bbp_check(const struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + unsigned int i; + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2x00pci_register_read(rt2x00dev, PHY_CSR3, ®); + if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY)) + break; + udelay(REGISTER_BUSY_DELAY); + } + + return reg; +} + +static void rt61pci_bbp_write(const struct rt2x00_dev *rt2x00dev, + const u8 reg_id, const u8 value) +{ + u32 reg; + + /* + * Wait until the BBP becomes ready. + */ + reg = rt61pci_bbp_check(rt2x00dev); + if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) { + ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n"); + return; + } + + /* + * Write the data into the BBP. + */ + reg = 0; + rt2x00_set_field32(®, PHY_CSR3_VALUE, value); + rt2x00_set_field32(®, PHY_CSR3_REGNUM, reg_id); + rt2x00_set_field32(®, PHY_CSR3_BUSY, 1); + rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 0); + + rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg); +} + +static void rt61pci_bbp_read(const struct rt2x00_dev *rt2x00dev, + const u8 reg_id, u8 *value) +{ + u32 reg; + + /* + * Wait until the BBP becomes ready. + */ + reg = rt61pci_bbp_check(rt2x00dev); + if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) { + ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n"); + return; + } + + /* + * Write the request into the BBP. + */ + reg =0; + rt2x00_set_field32(®, PHY_CSR3_REGNUM, reg_id); + rt2x00_set_field32(®, PHY_CSR3_BUSY, 1); + rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 1); + + rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg); + + /* + * Wait until the BBP becomes ready. + */ + reg = rt61pci_bbp_check(rt2x00dev); + if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) { + ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n"); + *value = 0xff; + return; + } + + *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE); +} + +static void rt61pci_rf_write(const struct rt2x00_dev *rt2x00dev, + const u32 value) +{ + u32 reg; + unsigned int i; + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2x00pci_register_read(rt2x00dev, PHY_CSR4, ®); + if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY)) + goto rf_write; + udelay(REGISTER_BUSY_DELAY); + } + + ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n"); + return; + +rf_write: + reg = 0; + rt2x00_set_field32(®, PHY_CSR4_VALUE, value); + rt2x00_set_field32(®, PHY_CSR4_NUMBER_OF_BITS, 21); + rt2x00_set_field32(®, PHY_CSR4_IF_SELECT, 0); + rt2x00_set_field32(®, PHY_CSR4_BUSY, 1); + + rt2x00pci_register_write(rt2x00dev, PHY_CSR4, reg); +} + +static void rt61pci_mcu_request(const struct rt2x00_dev *rt2x00dev, + const u8 command, const u8 token, const u8 arg0, const u8 arg1) +{ + u32 reg; + + rt2x00pci_register_read(rt2x00dev, H2M_MAILBOX_CSR, ®); + + if (rt2x00_get_field32(reg, H2M_MAILBOX_CSR_OWNER)) { + ERROR(rt2x00dev, "mcu request error. " + "Request 0x%02x failed for token 0x%02x.\n", + command, token); + return; + } + + rt2x00_set_field32(®, H2M_MAILBOX_CSR_OWNER, 1); + rt2x00_set_field32(®, H2M_MAILBOX_CSR_CMD_TOKEN, token); + rt2x00_set_field32(®, H2M_MAILBOX_CSR_ARG0, arg0); + rt2x00_set_field32(®, H2M_MAILBOX_CSR_ARG1, arg1); + rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, HOST_CMD_CSR, ®); + rt2x00_set_field32(®, HOST_CMD_CSR_HOST_COMMAND, command); + rt2x00_set_field32(®, HOST_CMD_CSR_INTERRUPT_MCU, 1); + rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, reg); +} + +static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom) +{ + struct rt2x00_dev *rt2x00dev = eeprom->data; + u32 reg; + + rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, ®); + + eeprom->reg_data_in = !!rt2x00_get_field32(reg, + E2PROM_CSR_DATA_IN); + eeprom->reg_data_out = !!rt2x00_get_field32(reg, + E2PROM_CSR_DATA_OUT); + eeprom->reg_data_clock = !!rt2x00_get_field32(reg, + E2PROM_CSR_DATA_CLOCK); + eeprom->reg_chip_select = !!rt2x00_get_field32(reg, + E2PROM_CSR_CHIP_SELECT); +} + +static void rt61pci_eepromregister_write(struct eeprom_93cx6 *eeprom) +{ + struct rt2x00_dev *rt2x00dev = eeprom->data; + u32 reg = 0; + + rt2x00_set_field32(®, E2PROM_CSR_DATA_IN, + !!eeprom->reg_data_in); + rt2x00_set_field32(®, E2PROM_CSR_DATA_OUT, + !!eeprom->reg_data_out); + rt2x00_set_field32(®, E2PROM_CSR_DATA_CLOCK, + !!eeprom->reg_data_clock); + rt2x00_set_field32(®, E2PROM_CSR_CHIP_SELECT, + !!eeprom->reg_chip_select); + + rt2x00pci_register_write(rt2x00dev, E2PROM_CSR, reg); +} + +#ifdef CONFIG_RT2X00_LIB_DEBUGFS +#define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) ) + +static void rt61pci_read_csr(struct rt2x00_dev *rt2x00dev, + const unsigned long word, void *data) +{ + rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data); +} + +static void rt61pci_write_csr(struct rt2x00_dev *rt2x00dev, + const unsigned long word, void *data) +{ + rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), *((u32*)data)); +} + +static void rt61pci_read_eeprom(struct rt2x00_dev *rt2x00dev, + const unsigned long word, void *data) +{ + rt2x00_eeprom_read(rt2x00dev, word, data); +} + +static void rt61pci_write_eeprom(struct rt2x00_dev *rt2x00dev, + const unsigned long word, void *data) +{ + rt2x00_eeprom_write(rt2x00dev, word, *((u16*)data)); +} + +static void rt61pci_read_bbp(struct rt2x00_dev *rt2x00dev, + const unsigned long word, void *data) +{ + rt61pci_bbp_read(rt2x00dev, word, data); +} + +static void rt61pci_write_bbp(struct rt2x00_dev *rt2x00dev, + const unsigned long word, void *data) +{ + rt61pci_bbp_write(rt2x00dev, word, *((u8*)data)); +} + +static const struct rt2x00debug rt61pci_rt2x00debug = { + .owner = THIS_MODULE, + .reg_csr = { + .read = rt61pci_read_csr, + .write = rt61pci_write_csr, + .word_size = sizeof(u32), + .word_count = CSR_REG_SIZE / sizeof(u32), + }, + .reg_eeprom = { + .read = rt61pci_read_eeprom, + .write = rt61pci_write_eeprom, + .word_size = sizeof(u16), + .word_count = EEPROM_SIZE / sizeof(u16), + }, + .reg_bbp = { + .read = rt61pci_read_bbp, + .write = rt61pci_write_bbp, + .word_size = sizeof(u8), + .word_count = BBP_SIZE / sizeof(u8), + }, +}; +#endif /* CONFIG_RT2X00_LIB_DEBUGFS */ + +#ifdef CONFIG_RT61PCI_RFKILL +static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + rt2x00pci_register_read(rt2x00dev, MAC_CSR13, ®); + return rt2x00_get_field32(reg, MAC_CSR13_BIT5);; +} +#endif /* CONFIG_RT2400PCI_RFKILL */ + +/* + * Configuration handlers. + */ +static void rt61pci_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +{ + u32 reg[2]; + + memset(®, 0, sizeof(reg)); + memcpy(®, bssid, ETH_ALEN); + + rt2x00_set_field32(®[1], MAC_CSR5_BSS_ID_MASK, 3); + + /* + * The BSSID is passed to us as an array of bytes, + * that array is little endian, so no need for byte ordering. + */ + rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR4, ®, sizeof(reg)); +} + +static void rt61pci_config_promisc(struct rt2x00_dev *rt2x00dev, + const int promisc) +{ + u32 reg; + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®); + rt2x00_set_field32(®, TXRX_CSR0_DROP_NOT_TO_ME, !promisc); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg); +} + +static void rt61pci_config_type(struct rt2x00_dev *rt2x00dev, + const int type) +{ + u32 reg; + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0); + + /* + * Apply hardware packet filter. + */ + rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®); + + if (!is_monitor_present(&rt2x00dev->interface) && + (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA)) + rt2x00_set_field32(®, TXRX_CSR0_DROP_TO_DS, 1); + else + rt2x00_set_field32(®, TXRX_CSR0_DROP_TO_DS, 0); + + rt2x00_set_field32(®, TXRX_CSR0_DROP_CRC, 1); + if (is_monitor_present(&rt2x00dev->interface)) { + rt2x00_set_field32(®, TXRX_CSR0_DROP_PHYSICAL, 0); + rt2x00_set_field32(®, TXRX_CSR0_DROP_CONTROL, 0); + rt2x00_set_field32(®, TXRX_CSR0_DROP_VERSION_ERROR, 0); + } else { + rt2x00_set_field32(®, TXRX_CSR0_DROP_PHYSICAL, 1); + rt2x00_set_field32(®, TXRX_CSR0_DROP_CONTROL, 1); + rt2x00_set_field32(®, TXRX_CSR0_DROP_VERSION_ERROR, 1); + } + + rt2x00_set_field32(®, TXRX_CSR0_DROP_MULTICAST, 0); + rt2x00_set_field32(®, TXRX_CSR0_DROP_BORADCAST, 0); + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg); + + /* + * Enable synchronisation. + */ + rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®); + if (is_interface_present(&rt2x00dev->interface)) { + rt2x00_set_field32(®, TXRX_CSR9_TSF_TICKING, 1); + rt2x00_set_field32(®, TXRX_CSR9_TBTT_ENABLE, 1); + } + + rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 0); + if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP) + rt2x00_set_field32(®, TXRX_CSR9_TSF_SYNC, 2); + else if (type == IEEE80211_IF_TYPE_STA) + rt2x00_set_field32(®, TXRX_CSR9_TSF_SYNC, 1); + else if (is_monitor_present(&rt2x00dev->interface) && + !is_interface_present(&rt2x00dev->interface)) + rt2x00_set_field32(®, TXRX_CSR9_TSF_SYNC, 0); + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg); +} + +static void rt61pci_config_channel(struct rt2x00_dev *rt2x00dev, + const int value, const int channel, const int txpower) +{ + u8 reg = 0; + u32 rf1 = 0; + u32 rf2 = value; + u32 rf3 = 0; + u32 rf4 = 0; + + if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags) || channel <= 14) + rf1 = 0x00002ccc; + else if (channel == 36 || + (channel >= 100 && channel <= 116) || + channel >= 157) + rf1 = 0x00002cd4; + else + rf1 = 0x00002cd0; + + if (channel <= 14) { + rf3 = 0x00068455; + } else if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags)) { + if (channel >= 36 && channel <= 48) + rf3 = 0x0009be55; + else if (channel >= 52 && channel <= 64) + rf3 = 0x0009ae55; + else if (channel >= 100 && channel <= 112) + rf3 = 0x000bae55; + else + rf3 = 0x000bbe55; + } else { + switch (channel) { + case 36: + case 40: + case 44: + rf3 = 0x00098455; + break; + case 48: + rf3 = 0x00098655; + break; + case 52: + rf3 = 0x00098855; + break; + case 56: + rf3 = 0x00098c55; + + case 60: + rf3 = 0x00098e55; + break; + case 64: + rf3 = 0x00099255; + break; + case 100: + case 104: + case 108: + rf3 = 0x000b9855; + break; + case 112: + case 116: + case 120: + case 124: + rf3 = 0x000b9a55; + break; + case 128: + case 132: + rf3 = 0x000b9c55; + break; + case 136: + case 140: + rf3 = 0x000b9e55; + break; + case 149: + case 153: + case 157: + case 161: + case 165: + rf3 = 0x000ba255; + break; + } + } + + if (channel < 14) { + if (channel & 1) + rf4 = 0x000ffa0b; + else + rf4 = 0x000ffa1f; + } else if (channel == 14) { + rf4 = 0x000ffa13; + } else if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags)) { + switch (channel) { + case 36: + case 56: + case 116: + case 136: + rf4 = 0x000ffa23; + break; + case 40: + case 60: + case 100: + case 120: + case 140: + rf4 = 0x000ffa03; + break; + case 44: + case 64: + case 104: + case 124: + rf4 = 0x000ffa0b; + break; + case 48: + case 108: + case 128: + rf4 = 0x000ffa13; + break; + case 52: + case 112: + case 132: + rf4 = 0x000ffa1b; + break; + case 149: + rf4 = 0x000ffa1f; + break; + case 153: + rf4 = 0x000ffa27; + break; + case 157: + rf4 = 0x000ffa07; + break; + case 161: + rf4 = 0x000ffa0f; + break; + case 165: + rf4 = 0x000ffa17; + break; + } + } else { + switch (channel) { + case 36: + case 40: + case 60: + case 140: + case 100: + case 104: + case 108: + case 112: + case 116: + case 120: + rf4 = 0x000c0a03; + break; + case 44: + case 64: + case 124: + case 149: + rf4 = 0x000c0a1b; + break; + case 48: + case 128: + case 153: + rf4 = 0x000c0a0b; + break; + case 52: + case 132: + rf4 = 0x000c0a23; + break; + case 56: + case 136: + rf4 = 0x000c0a13; + break; + case 157: + case 161: + case 165: + rf4 = 0x000c0a17; + break; + } + } + + /* + * Set TXpower. + */ + rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower)); + + /* + * Set Frequency offset. + */ + rt2x00_set_field32(&rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset); + + rt61pci_rf_write(rt2x00dev, rf1); + rt61pci_rf_write(rt2x00dev, rf2); + rt61pci_rf_write(rt2x00dev, rf3 & ~0x00000004); + rt61pci_rf_write(rt2x00dev, rf4); + + udelay(200); + + rt61pci_rf_write(rt2x00dev, rf1); + rt61pci_rf_write(rt2x00dev, rf2); + rt61pci_rf_write(rt2x00dev, rf3 | 0x00000004); + rt61pci_rf_write(rt2x00dev, rf4); + + udelay(200); + + rt61pci_rf_write(rt2x00dev, rf1); + rt61pci_rf_write(rt2x00dev, rf2); + rt61pci_rf_write(rt2x00dev, rf3 & ~0x00000004); + rt61pci_rf_write(rt2x00dev, rf4); + + rt61pci_bbp_read(rt2x00dev, 3, ®); + if (rt2x00_rf(&rt2x00dev->chip, RF5225) || + rt2x00_rf(&rt2x00dev->chip, RF2527)) + reg &= ~0x01; + else + reg |= 0x01; + rt61pci_bbp_write(rt2x00dev, 3, reg); + + msleep(1); + + /* + * Update rf fields + */ + rt2x00dev->rf1 = rf1; + rt2x00dev->rf2 = rf2; + rt2x00dev->rf3 = rf3; + rt2x00dev->rf4 = rf4; + rt2x00dev->tx_power = txpower; +} + +static void rt61pci_config_txpower(struct rt2x00_dev *rt2x00dev, + const int txpower) +{ + rt2x00_set_field32(&rt2x00dev->rf3, RF3_TXPOWER, + TXPOWER_TO_DEV(txpower)); + + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf1); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf2); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf4); + + udelay(200); + + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf1); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf2); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf3 | 0x00000004); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf4); + + udelay(200); + + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf1); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf2); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004); + rt61pci_rf_write(rt2x00dev, rt2x00dev->rf4); +} + +static void rt61pci_config_antenna(struct rt2x00_dev *rt2x00dev, + const int antenna_tx, const int antenna_rx) +{ + u32 reg; + u8 r3; + u8 r4; + u8 r77; + + rt2x00pci_register_read(rt2x00dev, PHY_CSR0, ®); + + if (rt2x00dev->curr_hwmode == HWMODE_A) { + if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) { + rt61pci_bbp_write(rt2x00dev, 17, 0x38); + rt61pci_bbp_write(rt2x00dev, 96, 0x78); + rt61pci_bbp_write(rt2x00dev, 104, 0x48); + rt61pci_bbp_write(rt2x00dev, 75, 0x80); + rt61pci_bbp_write(rt2x00dev, 86, 0x80); + rt61pci_bbp_write(rt2x00dev, 88, 0x80); + } else { + rt61pci_bbp_write(rt2x00dev, 17, 0x28); + rt61pci_bbp_write(rt2x00dev, 96, 0x58); + rt61pci_bbp_write(rt2x00dev, 104, 0x38); + rt61pci_bbp_write(rt2x00dev, 75, 0xfe); + rt61pci_bbp_write(rt2x00dev, 86, 0xfe); + rt61pci_bbp_write(rt2x00dev, 88, 0xfe); + } + rt61pci_bbp_write(rt2x00dev, 35, 0x60); + rt61pci_bbp_write(rt2x00dev, 97, 0x58); + rt61pci_bbp_write(rt2x00dev, 98, 0x58); + + rt2x00_set_field32(®, PHY_CSR0_PA_PE_BG, 0); + rt2x00_set_field32(®, PHY_CSR0_PA_PE_A, 1); + } else { + if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) { + rt61pci_bbp_write(rt2x00dev, 17, 0x30); + rt61pci_bbp_write(rt2x00dev, 96, 0x68); + rt61pci_bbp_write(rt2x00dev, 104, 0x3c); + rt61pci_bbp_write(rt2x00dev, 75, 0x80); + rt61pci_bbp_write(rt2x00dev, 86, 0x80); + rt61pci_bbp_write(rt2x00dev, 88, 0x80); + } else { + rt61pci_bbp_write(rt2x00dev, 17, 0x20); + rt61pci_bbp_write(rt2x00dev, 96, 0x48); + rt61pci_bbp_write(rt2x00dev, 104, 0x2c); + rt61pci_bbp_write(rt2x00dev, 75, 0xfe); + rt61pci_bbp_write(rt2x00dev, 86, 0xfe); + rt61pci_bbp_write(rt2x00dev, 88, 0xfe); + } + rt61pci_bbp_write(rt2x00dev, 35, 0x50); + rt61pci_bbp_write(rt2x00dev, 97, 0x48); + rt61pci_bbp_write(rt2x00dev, 98, 0x48); + + rt2x00_set_field32(®, PHY_CSR0_PA_PE_BG, 1); + rt2x00_set_field32(®, PHY_CSR0_PA_PE_A, 0); + } + + rt2x00pci_register_write(rt2x00dev, PHY_CSR0, reg); + + rt61pci_bbp_read(rt2x00dev, 3, &r3); + rt61pci_bbp_read(rt2x00dev, 4, &r4); + rt61pci_bbp_read(rt2x00dev, 77, &r77); + + if (rt2x00_rf(&rt2x00dev->chip, RF5225) || + rt2x00_rf(&rt2x00dev->chip, RF2527)) + rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0); + + if (rt2x00_rf(&rt2x00dev->chip, RF5225) || + rt2x00_rf(&rt2x00dev->chip, RF5325)) { + if (antenna_rx == ANTENNA_DIVERSITY) { + rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2); + if (rt2x00dev->curr_hwmode != HWMODE_A) + rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1); + } else if (antenna_rx == ANTENNA_A) { + rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1); + if (rt2x00dev->curr_hwmode == HWMODE_A) + rt2x00_set_field8(&r77, BBP_R77_PAIR, 0); + else + rt2x00_set_field8(&r77, BBP_R77_PAIR, 3); + rt61pci_bbp_write(rt2x00dev, 77, r77); + } else if (antenna_rx == ANTENNA_B) { + rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1); + if (rt2x00dev->curr_hwmode == HWMODE_A) + rt2x00_set_field8(&r77, BBP_R77_PAIR, 3); + else + rt2x00_set_field8(&r77, BBP_R77_PAIR, 0); + rt61pci_bbp_write(rt2x00dev, 77, r77); + } + } else if (rt2x00_rf(&rt2x00dev->chip, RF2527) || + (rt2x00_rf(&rt2x00dev->chip, RF2529) && + test_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags))) { + if (antenna_rx == ANTENNA_DIVERSITY) { + rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2); + rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1); + rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, + test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags)); + } else if (antenna_rx == ANTENNA_A) { + rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1); + rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1); + rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, + test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags)); + rt2x00_set_field8(&r77, BBP_R77_PAIR, 3); + rt61pci_bbp_write(rt2x00dev, 77, r77); + } else if (antenna_rx == ANTENNA_B) { + rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1); + rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1); + rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, + test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags)); + rt2x00_set_field8(&r77, BBP_R77_PAIR, 0); + rt61pci_bbp_write(rt2x00dev, 77, r77); + } + } + + /* + * TODO: RF2529 with another antenna value then 2 are ignored. + * The legacy driver is unclear whether in those cases there is + * a possibility to switch antenna. + */ + + rt61pci_bbp_write(rt2x00dev, 3, r3); + rt61pci_bbp_write(rt2x00dev, 4, r4); +} + +static void rt61pci_config_duration(struct rt2x00_dev *rt2x00dev, + const int short_slot_time, const int beacon_int) +{ + u32 reg; + + rt2x00pci_register_read(rt2x00dev, MAC_CSR9, ®); + rt2x00_set_field32(®, MAC_CSR9_SLOT_TIME, + short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME); + rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg); + + rt2x00pci_register_read(rt2x00dev, MAC_CSR8, ®); + rt2x00_set_field32(®, MAC_CSR8_SIFS, SIFS); + rt2x00_set_field32(®, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3); + rt2x00_set_field32(®, MAC_CSR8_EIFS, EIFS); + rt2x00pci_register_write(rt2x00dev, MAC_CSR8, reg); + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®); + rt2x00_set_field32(®, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg); + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, ®); + rt2x00_set_field32(®, TXRX_CSR4_AUTORESPOND_ENABLE, 1); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg); + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®); + rt2x00_set_field32(®, TXRX_CSR9_BEACON_INTERVAL, beacon_int * 16); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg); +} + +static void rt61pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate) +{ + struct ieee80211_conf *conf = &rt2x00dev->hw->conf; + u32 reg; + u32 value; + u32 preamble; + + preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) + ? SHORT_PREAMBLE : PREAMBLE; + + /* + * Extract the allowed ratemask from the device specific rate value, + * We need to set TXRX_CSR5 to the basic rate mask so we need to mask + * off the non-basic rates. + */ + reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE; + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR5, reg); + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®); + value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ? + SHORT_DIFS : DIFS) + + PLCP + preamble + get_duration(ACK_SIZE, 10); + rt2x00_set_field32(®, TXRX_CSR0_RX_ACK_TIMEOUT, value); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg); + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, ®); + if (preamble == SHORT_PREAMBLE) + rt2x00_set_field32(®, TXRX_CSR4_AUTORESPOND_PREAMBLE, 1); + else + rt2x00_set_field32(®, TXRX_CSR4_AUTORESPOND_PREAMBLE, 0); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg); +} + +static void rt61pci_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]; + + rt61pci_config_rate(rt2x00dev, rate->val2); +} + +static void rt61pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr) +{ + u32 reg[2]; + + memset(®, 0, sizeof(reg)); + memcpy(®, addr, ETH_ALEN); + + rt2x00_set_field32(®[1], MAC_CSR3_UNICAST_TO_ME_MASK, 0xff); + + /* + * The MAC address is passed to us as an array of bytes, + * that array is little endian, so no need for byte ordering. + */ + rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR2, ®, sizeof(reg)); +} + +/* + * LED functions. + */ +static void rt61pci_enable_led(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + u16 led_reg; + u8 arg0; + u8 arg1; + + rt2x00pci_register_read(rt2x00dev, MAC_CSR14, ®); + rt2x00_set_field32(®, MAC_CSR14_ON_PERIOD, 70); + rt2x00_set_field32(®, MAC_CSR14_OFF_PERIOD, 30); + rt2x00pci_register_write(rt2x00dev, MAC_CSR14, reg); + + led_reg = rt2x00dev->led_reg; + rt2x00_set_field16(&led_reg, MCU_LEDCS_RADIO_STATUS, 1); + if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) + rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_A_STATUS, 1); + else + rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_BG_STATUS, 1); + + arg0 = led_reg & 0xff; + arg1 = (led_reg >> 8) & 0xff; + + rt61pci_mcu_request(rt2x00dev, MCU_LED, 0xff, arg0, arg1); +} + +static void rt61pci_disable_led(struct rt2x00_dev *rt2x00dev) +{ + u16 led_reg; + u8 arg0; + u8 arg1; + + led_reg = rt2x00dev->led_reg; + rt2x00_set_field16(&led_reg, MCU_LEDCS_RADIO_STATUS, 0); + rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_BG_STATUS, 0); + rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_A_STATUS, 0); + + arg0 = led_reg & 0xff; + arg1 = (led_reg >> 8) & 0xff; + + rt61pci_mcu_request(rt2x00dev, MCU_LED, 0xff, arg0, arg1); +} + +static void rt61pci_activity_led(struct rt2x00_dev *rt2x00dev, char rssi) +{ + u8 led; + + if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH) + return; + + if (rssi <= 30) + led = 0; + else if (rssi <= 39) + led = 1; + else if (rssi <= 49) + led = 2; + else if (rssi <= 53) + led = 3; + else if (rssi <= 63) + led = 4; + else + led = 5; + + rt61pci_mcu_request(rt2x00dev, MCU_LED_STRENGTH, 0xff, led, 0); +} + +/* + * Link tuning + */ +static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi) +{ + u32 reg; + u8 r17; + u8 up_bound; + u8 low_bound; + + /* + * Update Led strength + */ + rt61pci_activity_led(rt2x00dev, rssi); + + rt61pci_bbp_read(rt2x00dev, 17, &r17); + + /* + * Determine r17 bounds. + */ + if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) { + low_bound = 0x28; + up_bound = 0x48; + if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) { + low_bound += 0x10; + up_bound += 0x10; + } + } else { + low_bound = 0x20; + up_bound = 0x40; + if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) { + low_bound += 0x10; + up_bound += 0x10; + } + } + + /* + * Special big-R17 for very short distance + */ + if (rssi >= -35) { + if (r17 != 0x60) + rt61pci_bbp_write(rt2x00dev, 17, 0x60); + return; + } + + /* + * Special big-R17 for short distance + */ + if (rssi >= -58) { + if (r17 != up_bound) + rt61pci_bbp_write(rt2x00dev, 17, up_bound); + return; + } + + /* + * Special big-R17 for middle-short distance + */ + if (rssi >= -66) { + low_bound += 0x10; + if (r17 != low_bound) + rt61pci_bbp_write(rt2x00dev, 17, low_bound); + return; + } + + /* + * Special mid-R17 for middle distance + */ + if (rssi >= -74) { + low_bound += 0x08; + if (r17 != low_bound) + rt61pci_bbp_write(rt2x00dev, 17, low_bound); + return; + } + + /* + * Special case: Change up_bound based on the rssi. + * Lower up_bound when rssi is weaker then -74 dBm. + */ + up_bound -= 2 * (-74 - rssi); + if (low_bound > up_bound) + up_bound = low_bound; + + if (r17 > up_bound) { + rt61pci_bbp_write(rt2x00dev, 17, up_bound); + return; + } + + /* + * r17 does not yet exceed upper limit, continue and base + * the r17 tuning on the false CCA count. + */ + rt2x00pci_register_read(rt2x00dev, STA_CSR1, ®); + rt2x00dev->link.false_cca = + rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR); + + if (rt2x00dev->link.false_cca > 512 && r17 < up_bound) { + if (++r17 > up_bound) + r17 = up_bound; + rt61pci_bbp_write(rt2x00dev, 17, r17); + } else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) { + if (--r17 < low_bound) + r17 = low_bound; + rt61pci_bbp_write(rt2x00dev, 17, r17); + } +} + +/* + * Firmware name function. + */ +static char *rt61pci_get_fw_name(struct rt2x00_dev *rt2x00dev) +{ + char *fw_name; + + switch (rt2x00dev->chip.rt) { + case RT2561: + fw_name = FIRMWARE_RT2561; + break; + case RT2561s: + fw_name = FIRMWARE_RT2561s; + break; + case RT2661: + fw_name = FIRMWARE_RT2661; + break; + default: + fw_name = NULL; + break; + } + + return fw_name; +} + +/* + * Initialization functions. + */ +static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev, void *data, + const size_t len) +{ + int i; + u32 reg; + + /* + * Wait for stable hardware. + */ + for (i = 0; i < 100; i++) { + rt2x00pci_register_read(rt2x00dev, MAC_CSR0, ®); + if (reg) + break; + msleep(1); + } + + if (!reg) { + ERROR(rt2x00dev, "Unstable hardware.\n"); + return -EBUSY; + } + + /* + * Prepare MCU and mailbox for firmware loading. + */ + reg = 0; + rt2x00_set_field32(®, MCU_CNTL_CSR_RESET, 1); + rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg); + rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff); + rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0); + rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, 0); + + /* + * Write firmware to device. + */ + reg = 0; + rt2x00_set_field32(®, MCU_CNTL_CSR_RESET, 1); + rt2x00_set_field32(®, MCU_CNTL_CSR_SELECT_BANK, 1); + rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg); + + rt2x00pci_register_multiwrite( + rt2x00dev, FIRMWARE_IMAGE_BASE, data, len); + + rt2x00_set_field32(®, MCU_CNTL_CSR_SELECT_BANK, 0); + rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg); + + rt2x00_set_field32(®, MCU_CNTL_CSR_RESET, 0); + rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg); + + for (i = 0; i < 100; i++) { + rt2x00pci_register_read(rt2x00dev, MCU_CNTL_CSR, ®); + if (rt2x00_get_field32(reg, MCU_CNTL_CSR_READY)) + break; + msleep(1); + } + + if (i == 100) { + ERROR(rt2x00dev, "MCU Control register not ready.\n"); + return -EBUSY; + } + + /* + * Reset MAC and BBP registers. + */ + reg = 0; + rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 1); + rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 1); + rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg); + + rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®); + rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 0); + rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 0); + rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg); + + rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®); + rt2x00_set_field32(®, MAC_CSR1_HOST_READY, 1); + rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg); + + return 0; +} + +static void rt61pci_init_rxring(struct rt2x00_dev *rt2x00dev) +{ + struct data_desc *rxd; + unsigned int i; + u32 word; + + memset(rt2x00dev->rx->data_addr, 0x00, + rt2x00_get_ring_size(rt2x00dev->rx)); + + for (i = 0; i < rt2x00dev->rx->stats.limit; i++) { + rxd = rt2x00dev->rx->entry[i].priv; + + rt2x00_desc_read(rxd, 5, &word); + rt2x00_set_field32(&word, RXD_W5_BUFFER_PHYSICAL_ADDRESS, + rt2x00dev->rx->entry[i].data_dma); + rt2x00_desc_write(rxd, 5, word); + + rt2x00_desc_read(rxd, 0, &word); + rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1); + rt2x00_desc_write(rxd, 0, word); + } + + rt2x00_ring_index_clear(rt2x00dev->rx); +} + +static void rt61pci_init_txring(struct rt2x00_dev *rt2x00dev, + const int queue) +{ + struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue); + struct data_desc *txd; + unsigned int i; + u32 word; + + memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring)); + + for (i = 0; i < ring->stats.limit; i++) { + txd = ring->entry[i].priv; + + rt2x00_desc_read(txd, 1, &word); + rt2x00_set_field32(&word, TXD_W1_BUFFER_COUNT, 1); + rt2x00_desc_write(txd, 1, word); + + rt2x00_desc_read(txd, 5, &word); + rt2x00_set_field32(&word, TXD_W5_PID_TYPE, queue); + rt2x00_set_field32(&word, TXD_W5_PID_SUBTYPE, i); + rt2x00_desc_write(txd, 5, word); + + rt2x00_desc_read(txd, 6, &word); + rt2x00_set_field32(&word, TXD_W6_BUFFER_PHYSICAL_ADDRESS, + ring->entry[i].data_dma); + rt2x00_desc_write(txd, 6, word); + + rt2x00_desc_read(txd, 0, &word); + rt2x00_set_field32(&word, TXD_W0_VALID, 0); + rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0); + rt2x00_desc_write(txd, 0, word); + } + + rt2x00_ring_index_clear(ring); +} + +static int rt61pci_init_rings(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + /* + * Initialize rings. + */ + rt61pci_init_rxring(rt2x00dev); + rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0); + rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1); + rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA2); + rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA3); + rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA4); + rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); + + /* + * Initialize registers. + */ + rt2x00pci_register_read(rt2x00dev, TX_RING_CSR0, ®); + rt2x00_set_field32(®, TX_RING_CSR0_AC0_RING_SIZE, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit); + rt2x00_set_field32(®, TX_RING_CSR0_AC1_RING_SIZE, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit); + rt2x00_set_field32(®, TX_RING_CSR0_AC2_RING_SIZE, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA2].stats.limit); + rt2x00_set_field32(®, TX_RING_CSR0_AC3_RING_SIZE, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA3].stats.limit); + rt2x00pci_register_write(rt2x00dev, TX_RING_CSR0, reg); + + rt2x00pci_register_read(rt2x00dev, TX_RING_CSR1, ®); + rt2x00_set_field32(®, TX_RING_CSR1_MGMT_RING_SIZE, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA4].stats.limit); + rt2x00_set_field32(®, TX_RING_CSR1_TXD_SIZE, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size / 4); + rt2x00pci_register_write(rt2x00dev, TX_RING_CSR1, reg); + + rt2x00pci_register_read(rt2x00dev, AC0_BASE_CSR, ®); + rt2x00_set_field32(®, AC0_BASE_CSR_RING_REGISTER, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma); + rt2x00pci_register_write(rt2x00dev, AC0_BASE_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, AC1_BASE_CSR, ®); + rt2x00_set_field32(®, AC1_BASE_CSR_RING_REGISTER, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma); + rt2x00pci_register_write(rt2x00dev, AC1_BASE_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, AC2_BASE_CSR, ®); + rt2x00_set_field32(®, AC2_BASE_CSR_RING_REGISTER, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA2].data_dma); + rt2x00pci_register_write(rt2x00dev, AC2_BASE_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, AC3_BASE_CSR, ®); + rt2x00_set_field32(®, AC3_BASE_CSR_RING_REGISTER, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA3].data_dma); + rt2x00pci_register_write(rt2x00dev, AC3_BASE_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, MGMT_BASE_CSR, ®); + rt2x00_set_field32(®, MGMT_BASE_CSR_RING_REGISTER, + rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA4].data_dma); + rt2x00pci_register_write(rt2x00dev, MGMT_BASE_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, RX_RING_CSR, ®); + rt2x00_set_field32(®, RX_RING_CSR_RING_SIZE, + rt2x00dev->rx->stats.limit); + rt2x00_set_field32(®, RX_RING_CSR_RXD_SIZE, + rt2x00dev->rx->desc_size / 4); + rt2x00_set_field32(®, RX_RING_CSR_RXD_WRITEBACK_SIZE, 4); + rt2x00pci_register_write(rt2x00dev, RX_RING_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, RX_BASE_CSR, ®); + rt2x00_set_field32(®, RX_BASE_CSR_RING_REGISTER, + rt2x00dev->rx->data_dma); + rt2x00pci_register_write(rt2x00dev, RX_BASE_CSR, reg); + + rt2x00pci_register_write(rt2x00dev, TX_DMA_DST_CSR, 0x000000aa); + rt2x00pci_register_write(rt2x00dev, LOAD_TX_RING_CSR, 0x0000001f); + rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, 0x00000002); + + return 0; +} + +static int rt61pci_init_registers(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE)) + return -EBUSY; + + rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00000718); + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, 0x025eb032); + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR1, 0x9eb39eb3); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR2, 0x8a8b8c8d); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR3, 0x00858687); + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR7, 0x2e31353b); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR8, 0x2a2a2a2c); + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f); + + rt2x00pci_register_write(rt2x00dev, MAC_CSR6, 0x00000fff); + + rt2x00pci_register_write(rt2x00dev, MAC_CSR13, 0x0000e000); + + rt2x00pci_register_write(rt2x00dev, SEC_CSR0, 0x00000000); + rt2x00pci_register_write(rt2x00dev, SEC_CSR1, 0x00000000); + rt2x00pci_register_write(rt2x00dev, SEC_CSR5, 0x00000000); + + rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR0, ®); + rt2x00_set_field32(®, AC_TXOP_CSR0_AC0_TX_OP, 0); + rt2x00_set_field32(®, AC_TXOP_CSR0_AC1_TX_OP, 0); + rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR0, reg); + + rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR1, ®); + rt2x00_set_field32(®, AC_TXOP_CSR1_AC2_TX_OP, 192); + rt2x00_set_field32(®, AC_TXOP_CSR1_AC3_TX_OP, 48); + rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR1, reg); + + rt2x00pci_register_read(rt2x00dev, MAC_CSR9, ®); + rt2x00_set_field32(®, MAC_CSR9_CW_SELECT, 0); + rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg); + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®); + rt2x00_set_field32(®, TXRX_CSR0_AUTO_TX_SEQ, 1); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg); + + rt2x00pci_register_write(rt2x00dev, PHY_CSR1, 0x000023b0); + rt2x00pci_register_write(rt2x00dev, PHY_CSR5, 0x060a100c); + rt2x00pci_register_write(rt2x00dev, PHY_CSR6, 0x00080606); + rt2x00pci_register_write(rt2x00dev, PHY_CSR7, 0x00000a08); + + rt2x00pci_register_write(rt2x00dev, PCI_CFG_CSR, 0x28ca4404); + + rt2x00pci_register_write(rt2x00dev, TEST_MODE_CSR, 0x00000200); + + rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff); + + /* + * We must clear the error counters. + * These registers are cleared on read, + * so we may pass a useless variable to store the value. + */ + rt2x00pci_register_read(rt2x00dev, STA_CSR0, ®); + rt2x00pci_register_read(rt2x00dev, STA_CSR1, ®); + rt2x00pci_register_read(rt2x00dev, STA_CSR2, ®); + + /* + * Reset MAC and BBP registers. + */ + reg = 0; + rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 1); + rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 1); + rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg); + + rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®); + rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 0); + rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 0); + rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg); + + rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®); + rt2x00_set_field32(®, MAC_CSR1_HOST_READY, 1); + rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg); + + return 0; +} + +static int rt61pci_init_bbp(struct rt2x00_dev *rt2x00dev) +{ + unsigned int i; + u16 eeprom; + u8 reg_id; + u8 value; + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt61pci_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: + rt61pci_bbp_write(rt2x00dev, 3, 0x00); + rt61pci_bbp_write(rt2x00dev, 15, 0x30); + rt61pci_bbp_write(rt2x00dev, 17, 0x20); + rt61pci_bbp_write(rt2x00dev, 21, 0xc8); + rt61pci_bbp_write(rt2x00dev, 22, 0x38); + rt61pci_bbp_write(rt2x00dev, 23, 0x06); + rt61pci_bbp_write(rt2x00dev, 24, 0xfe); + rt61pci_bbp_write(rt2x00dev, 25, 0x0a); + rt61pci_bbp_write(rt2x00dev, 26, 0x0d); + rt61pci_bbp_write(rt2x00dev, 34, 0x12); + rt61pci_bbp_write(rt2x00dev, 37, 0x07); + rt61pci_bbp_write(rt2x00dev, 39, 0xf8); + rt61pci_bbp_write(rt2x00dev, 41, 0x60); + rt61pci_bbp_write(rt2x00dev, 53, 0x10); + rt61pci_bbp_write(rt2x00dev, 54, 0x18); + rt61pci_bbp_write(rt2x00dev, 60, 0x10); + rt61pci_bbp_write(rt2x00dev, 61, 0x04); + rt61pci_bbp_write(rt2x00dev, 62, 0x04); + rt61pci_bbp_write(rt2x00dev, 75, 0xfe); + rt61pci_bbp_write(rt2x00dev, 86, 0xfe); + rt61pci_bbp_write(rt2x00dev, 88, 0xfe); + rt61pci_bbp_write(rt2x00dev, 90, 0x0f); + rt61pci_bbp_write(rt2x00dev, 99, 0x00); + rt61pci_bbp_write(rt2x00dev, 102, 0x16); + rt61pci_bbp_write(rt2x00dev, 107, 0x04); + + 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); + rt61pci_bbp_write(rt2x00dev, reg_id, value); + } + } + DEBUG(rt2x00dev, "...End initialization from EEPROM.\n"); + + return 0; +} + +/* + * Device state switch handlers. + */ +static void rt61pci_toggle_rx(struct rt2x00_dev *rt2x00dev, + enum dev_state state) +{ + u32 reg; + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®); + rt2x00_set_field32(®, TXRX_CSR0_DISABLE_RX, + state == STATE_RADIO_RX_OFF); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg); +} + +static int rt61pci_enable_radio(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + /* + * Initialize all registers. + */ + if (rt61pci_init_rings(rt2x00dev) || + rt61pci_init_registers(rt2x00dev) || + rt61pci_init_bbp(rt2x00dev)) { + ERROR(rt2x00dev, "Register initialization failed.\n"); + return -EIO; + } + + /* + * Clear interrupts. + */ + rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, ®); + rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, ®); + rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg); + + /* + * Enable interrupts. + */ + reg = 0; + rt2x00_set_field32(®, INT_MASK_CSR_TX_ABORT_DONE, 1); + rt2x00_set_field32(®, INT_MASK_CSR_MITIGATION_PERIOD, 0xff); + rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg); + + rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, 0x00000000); + + /* + * Enable RX. + */ + rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, 0x00000001); + + /* + * Enable LED + */ + rt61pci_enable_led(rt2x00dev); + + return 0; +} + +static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + /* + * Disable LED + */ + rt61pci_disable_led(rt2x00dev); + + rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818); + + /* + * Disable synchronisation. + */ + rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0); + + /* + * Cancel RX and TX. + */ + rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC0, 1); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC1, 1); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC2, 1); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC3, 1); + rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_MGMT, 1); + rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg); + + /* + * Disable interrupts. + */ + reg = 0xffffffff; + rt2x00_set_field32(®, INT_MASK_CSR_ENABLE_MITIGATION, 0); + rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg); + + rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, 0xffffffff); +} + +static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, + enum dev_state state) +{ + u32 reg; + unsigned int i; + char put_to_sleep; + char current_state; + + put_to_sleep = (state != STATE_AWAKE); + + rt2x00pci_register_read(rt2x00dev, MAC_CSR12, ®); + rt2x00_set_field32(®, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep); + rt2x00_set_field32(®, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep); + rt2x00pci_register_write(rt2x00dev, MAC_CSR12, reg); + + if (put_to_sleep) { + rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000005); + rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x0000001c); + rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000060); + rt61pci_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0x00, 0x00); + } else { + rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000007); + rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x00000018); + rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000020); + rt61pci_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0x00, 0x00); + } + + /* + * 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++) { + rt2x00pci_register_read(rt2x00dev, MAC_CSR12, ®); + current_state = rt2x00_get_field32(reg, + MAC_CSR12_BBP_CURRENT_STATE); + if (current_state == !put_to_sleep) + return 0; + msleep(10); + } + + NOTICE(rt2x00dev, "Device failed to enter state %d, " + "current device state %d.\n", !put_to_sleep, current_state); + + return -EBUSY; +} + +static int rt61pci_set_device_state(struct rt2x00_dev *rt2x00dev, + enum dev_state state) +{ + int retval = 0; + + switch (state) { + case STATE_RADIO_ON: + retval = rt61pci_enable_radio(rt2x00dev); + break; + case STATE_RADIO_OFF: + rt61pci_disable_radio(rt2x00dev); + break; + case STATE_RADIO_RX_ON: + case STATE_RADIO_RX_OFF: + rt61pci_toggle_rx(rt2x00dev, state); + break; + case STATE_DEEP_SLEEP: + case STATE_SLEEP: + case STATE_STANDBY: + case STATE_AWAKE: + retval = rt61pci_set_state(rt2x00dev, state); + break; + default: + retval = -ENOTSUPP; + break; + } + + return retval; +} + +/* + * TX descriptor initialization + */ +static void rt61pci_write_tx_desc(struct rt2x00_dev *rt2x00dev, + struct data_entry *entry, 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_HOST_Q_ID, desc->queue); + rt2x00_set_field32(&word, TXD_W1_AIFSN, entry->ring->tx_params.aifs); + rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->ring->tx_params.cw_min); + rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->ring->tx_params.cw_max); + rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER); + rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1); + 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, 5, &word); + rt2x00_set_field32(&word, TXD_W5_TX_POWER, + TXPOWER_TO_DEV(control->power_level)); + rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1); + rt2x00_desc_write(txd, 5, word); + + rt2x00_desc_read(txd, 11, &word); + rt2x00_set_field32(&word, TXD_W11_BUFFER_LENGTH0, length); + rt2x00_desc_write(txd, 11, word); + + rt2x00_desc_read(txd, 0, &word); + rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1); + rt2x00_set_field32(&word, TXD_W0_VALID, 1); + rt2x00_set_field32(&word, TXD_W0_MORE_FRAG, + test_bit(ENTRY_TXD_MORE_FRAG, &entry->flags)); + rt2x00_set_field32(&word, TXD_W0_ACK, + test_bit(ENTRY_TXD_REQ_ACK, &entry->flags)); + rt2x00_set_field32(&word, TXD_W0_TIMESTAMP, + test_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags)); + rt2x00_set_field32(&word, TXD_W0_OFDM, + test_bit(ENTRY_TXD_OFDM_RATE, &entry->flags)); + rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs); + rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, 0); + rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0); + rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length); + rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE); + rt2x00_desc_write(txd, 0, word); +} + +/* + * TX data initialization + */ +static void rt61pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue) +{ + u32 reg; + + if (queue == IEEE80211_TX_QUEUE_BEACON) { + rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®); + if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) { + rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 1); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg); + } + return; + } + + rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®); + if (queue == IEEE80211_TX_QUEUE_DATA0) + rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC0, 1); + else if (queue == IEEE80211_TX_QUEUE_DATA1) + rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC1, 1); + else if (queue == IEEE80211_TX_QUEUE_DATA2) + rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC2, 1); + else if (queue == IEEE80211_TX_QUEUE_DATA3) + rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC3, 1); + else if (queue == IEEE80211_TX_QUEUE_DATA4) + rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_MGMT, 1); + rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg); +} + +/* + * Interrupt functions. + */ +static void rt61pci_rxdone(struct rt2x00_dev *rt2x00dev) +{ + struct data_ring *ring = rt2x00dev->rx; + struct data_entry *entry; + struct data_desc *rxd; + u32 word0; + u32 word1; + int signal; + int rssi; + int ofdm; + u16 size; + + while (1) { + entry = rt2x00_get_data_entry(ring); + rxd = entry->priv; + rt2x00_desc_read(rxd, 0, &word0); + rt2x00_desc_read(rxd, 1, &word1); + + if (rt2x00_get_field32(word0, RXD_W0_OWNER_NIC)) + break; + + /* + * TODO: Don't we need to keep statistics + * updated about events like CRC and physical errors? + */ + if (rt2x00_get_field32(word0, RXD_W0_CRC)) + goto skip_entry; + + /* + * Obtain the status about this packet. + */ + size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT); + signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL); + rssi = rt2x00_get_field32(word1, RXD_W1_RSSI); + ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM); + + /* + * Send the packet to upper layer. + */ + rt2x00lib_rxdone(entry, entry->data_addr, size, + signal, rssi, ofdm); + +skip_entry: + if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) { + rt2x00_set_field32(&word0, RXD_W0_OWNER_NIC, 1); + rt2x00_desc_write(rxd, 0, word0); + } + + rt2x00_ring_index_inc(ring); + } +} + +static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev) +{ + struct data_ring *ring; + struct data_entry *entry; + struct data_desc *txd; + u32 word; + u32 reg; + int index; + int tx_status; + int retry; + + while (1) { + rt2x00pci_register_read(rt2x00dev, STA_CSR4, ®); + if (!rt2x00_get_field32(reg, STA_CSR4_VALID)) + break; + + /* + * Skip this entry when it contains an invalid + * ring identication number. + */ + ring = rt2x00_get_ring(rt2x00dev, + rt2x00_get_field32(reg, STA_CSR4_PID_TYPE)); + if (unlikely(!ring)) + continue; + + /* + * Skip this entry when it contains an invalid + * index number. + */ + index = rt2x00_get_field32(reg, STA_CSR4_PID_SUBTYPE); + if (unlikely(index >= ring->stats.limit)) + continue; + + entry = &ring->entry[index]; + txd = entry->priv; + rt2x00_desc_read(txd, 0, &word); + + if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) || + !rt2x00_get_field32(word, TXD_W0_VALID)) + return; + + /* + * Obtain the status about this packet. + */ + tx_status = rt2x00_get_field32(reg, STA_CSR4_TX_RESULT); + retry = rt2x00_get_field32(reg, STA_CSR4_RETRY_COUNT); + + rt2x00lib_txdone(entry, tx_status, retry); + + /* + * Make this entry available for reuse. + */ + entry->flags = 0; + rt2x00_set_field32(&word, TXD_W0_VALID, 0); + rt2x00_desc_write(txd, 0, word); + rt2x00_ring_index_done_inc(entry->ring); + + /* + * If the data ring was full before the txdone handler + * we must make sure the packet queue in the mac80211 stack + * is reenabled when the txdone handler has finished. + */ + if (!rt2x00_ring_full(ring)) + ieee80211_wake_queue(rt2x00dev->hw, + entry->tx_status.control.queue); + } +} + +static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance) +{ + struct rt2x00_dev *rt2x00dev = dev_instance; + u32 reg; + + /* + * Get the interrupt sources & saved to local variable. + * Write register value back to clear pending interrupts. + */ + rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, ®); + rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg); + + rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, ®); + rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg); + + if (!reg) + return IRQ_NONE; + + if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) + return IRQ_HANDLED; + + /* + * Handle interrupts, walk through all bits + * and run the tasks, the bits are checked in order of + * priority. + */ + + /* + * 1 - Beacon timer expired interrupt. + */ + if (rt2x00_get_field32(reg, INT_SOURCE_CSR_BEACON_DONE)) + rt2x00pci_beacondone(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); + + /* + * 2 - Rx ring done interrupt. + */ + if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RXDONE)) + rt61pci_rxdone(rt2x00dev); + + /* + * 3 - Tx ring done interrupt. + */ + if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TXDONE)) + rt61pci_txdone(rt2x00dev); + + return IRQ_HANDLED; +} + +/* + * Device initialization functions. + */ +static int rt61pci_alloc_eeprom(struct rt2x00_dev *rt2x00dev) +{ + struct eeprom_93cx6 eeprom; + u32 reg; + u16 word; + + /* + * Allocate the eeprom memory, check the eeprom width + * and copy the entire eeprom into this allocated memory. + */ + rt2x00dev->eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL); + if (!rt2x00dev->eeprom) + return -ENOMEM; + + rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, ®); + + eeprom.data = rt2x00dev; + eeprom.register_read = rt61pci_eepromregister_read; + eeprom.register_write = rt61pci_eepromregister_write; + eeprom.width = rt2x00_get_field32(reg, E2PROM_CSR_TYPE_93C46) ? + PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66; + eeprom.reg_data_in = 0; + eeprom.reg_data_out = 0; + eeprom.reg_data_clock = 0; + eeprom.reg_chip_select = 0; + + eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom, + EEPROM_SIZE / sizeof(u16)); + + /* + * Start validation of the data that has been read. + */ + 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, 2); + rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 2); + rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 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, RF5225); + 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_ENABLE_DIVERSITY, 0); + rt2x00_set_field16(&word, EEPROM_NIC_TX_DIVERSITY, 0); + rt2x00_set_field16(&word, EEPROM_NIC_TX_RX_FIXED, 0); + rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_BG, 0); + rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0); + rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_A, 0); + rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word); + EEPROM(rt2x00dev, "NIC: 0x%04x\n", word); + } + + rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word); + if (word == 0xffff) { + rt2x00_set_field16(&word, EEPROM_LED_LED_MODE, + LED_MODE_DEFAULT); + rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word); + EEPROM(rt2x00dev, "Led: 0x%04x\n", word); + } + + rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word); + if (word == 0xffff) { + rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0); + rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0); + rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word); + EEPROM(rt2x00dev, "Freq: 0x%04x\n", word); + } + + return 0; +} + +static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + u16 value; + u16 eeprom; + u16 device; + + /* + * Read EEPROM word for configuration. + */ + rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom); + + /* + * Identify RF chipset. + * To determine the RT chip we have to read the + * PCI header of the device. + */ + pci_read_config_word(rt2x00dev_pci(rt2x00dev), + PCI_CONFIG_HEADER_DEVICE, &device); + value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE); + rt2x00pci_register_read(rt2x00dev, MAC_CSR0, ®); + rt2x00_set_chip(rt2x00dev, device, value, reg); + + if (!rt2x00_rf(&rt2x00dev->chip, RF5225) && + !rt2x00_rf(&rt2x00dev->chip, RF5325) && + !rt2x00_rf(&rt2x00dev->chip, RF2527) && + !rt2x00_rf(&rt2x00dev->chip, RF2529)) { + 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); + + /* + * Read the Frame type. + */ + if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE)) + __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags); + + /* + * Determine number of antenna's. + */ + if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_NUM) == 2) + __set_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags); + + /* + * Detect if this device has an hardware controlled radio. + */ + if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) + __set_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags); + + /* + * Read frequency offset and RF programming sequence. + */ + rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom); + if (rt2x00_get_field16(eeprom, EEPROM_FREQ_SEQ)) + __set_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags); + + rt2x00dev->freq_offset = + rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET); + + /* + * Read external LNA informations. + */ + rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom); + + if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_A)) + __set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags); + if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_BG)) + __set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags); + + /* + * Store led settings, for correct led behaviour. + * If the eeprom value is invalid, + * switch to default led mode. + */ + rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom); + + rt2x00dev->led_mode = rt2x00_get_field16(eeprom, EEPROM_LED_LED_MODE); + + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LED_MODE, + rt2x00dev->led_mode); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_0, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_0)); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_1, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_1)); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_2, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_2)); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_3, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_3)); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_4, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_4)); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_ACT, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT)); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_BG, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_G)); + rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_A, + rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_A)); + + return 0; +} + +/* + * RF value list for RF5225, RF5325, RF2527 & RF2529 + * Supports: 2.4 GHz + */ +static const u32 rf_vals_bg[] = { + 0x00004786, 0x00004786, 0x0000478a, 0x0000478a, 0x0000478e, + 0x0000478e, 0x00004792, 0x00004792, 0x00004796, 0x00004796, + 0x0000479a, 0x0000479a, 0x0000479e, 0x000047a2 +}; + +/* + * RF value list for RF5225 & RF5325 (supplement to vals_bg) + * Supports: 5.2 GHz, rf_sequence disabled + */ +static const u32 rf_vals_a_5x_noseq[] = { + 0x0000499a, 0x000049a2, 0x000049a6, 0x000049aa, 0x000049ae, + 0x000049b2, 0x000049ba, 0x000049be, 0x00004a2a, 0x00004a2e, + 0x00004a32, 0x00004a36, 0x00004a3a, 0x00004a82, 0x00004a86, + 0x00004a8a, 0x00004a8e, 0x00004a92, 0x00004a9a, 0x00004aa2, + 0x00004aa6, 0x00004aae, 0x00004ab2, 0x00004ab6 +}; + +/* + * RF value list for RF5225 & RF5325 (supplement to vals_bg) + * Supports: 5.2 GHz, rf_sequence enabled + */ +static const u32 rf_vals_a_5x_seq[] = { + 0x0004481a, 0x00044682, 0x00044686, 0x0004468e, 0x00044692, + 0x0004469a, 0x000446a2, 0x000446a6, 0x0004489a, 0x000448a2, + 0x000448aa, 0x000448b2, 0x000448ba, 0x00044702, 0x00044706, + 0x0004470e, 0x00044712, 0x0004471a, 0x00044722, 0x0004472e, + 0x00044736, 0x0004490a, 0x00044912, 0x0004491a +}; + +static void rt61pci_init_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 | + IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | + IEEE80211_HW_WEP_INCLUDE_IV | + IEEE80211_HW_DATA_NULLFUNC_ACK | + IEEE80211_HW_NO_TKIP_WMM_HWACCEL | + IEEE80211_HW_MONITOR_DURING_OPER; + rt2x00dev->hw->extra_tx_headroom = 0; + rt2x00dev->hw->max_rssi = MAX_RX_SSI; + rt2x00dev->hw->max_noise = MAX_RX_NOISE; + rt2x00dev->hw->queues = 5; + + /* + * Convert tx_power array in eeprom. + */ + txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START); + for (i = 0; i < 14; i++) + txpower[i] = TXPOWER_FROM_DEV(txpower[i]); + + /* + * Initialize hw_mode information. + */ + spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0); + spec->num_modes = 2; + spec->num_rates = 12; + spec->num_channels = 14; + spec->tx_power_a = NULL; + spec->tx_power_bg = txpower; + spec->tx_power_default = DEFAULT_TXPOWER; + spec->chan_val_a = NULL; + spec->chan_val_bg = rf_vals_bg; + + if (rt2x00_rf(&rt2x00dev->chip, RF5225) || + rt2x00_rf(&rt2x00dev->chip, RF5325)) { + spec->num_modes = 3; + spec->num_channels += 24; + + txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START); + for (i = 0; i < 14; i++) + txpower[i] = TXPOWER_FROM_DEV(txpower[i]); + + spec->tx_power_a = txpower; + if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags)) + spec->chan_val_a = rf_vals_a_5x_noseq; + else + spec->chan_val_a = rf_vals_a_5x_seq; + } +} + +static int rt61pci_init_hw(struct rt2x00_dev *rt2x00dev) +{ + int retval; + + /* + * Allocate eeprom data. + */ + retval = rt61pci_alloc_eeprom(rt2x00dev); + if (retval) + return retval; + + retval = rt61pci_init_eeprom(rt2x00dev); + if (retval) + return retval; + + /* + * Initialize hw specifications. + */ + rt61pci_init_hw_mode(rt2x00dev); + + /* + * rt61pci requires firmware + */ + __set_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags); + + return 0; +} + +/* + * IEEE80211 stack callback functions. + */ +static int rt61pci_get_stats(struct ieee80211_hw *hw, + struct ieee80211_low_level_stats *stats) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + u32 reg; + + /* + * Update FCS error count from register. + * The dot11ACKFailureCount, dot11RTSFailureCount and + * dot11RTSSuccessCount are updated in interrupt time. + */ + rt2x00pci_register_read(rt2x00dev, STA_CSR0, ®); + rt2x00dev->low_level_stats.dot11FCSErrorCount += + rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR); + + memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats)); + + return 0; +} + +static int rt61pci_set_retry_limit(struct ieee80211_hw *hw, + u32 short_retry, u32 long_retry) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + u32 reg; + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, ®); + rt2x00_set_field32(®, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry); + rt2x00_set_field32(®, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg); + + return 0; +} + +static u64 rt61pci_get_tsf(struct ieee80211_hw *hw) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + u64 tsf; + u32 reg; + + rt2x00pci_register_read(rt2x00dev, TXRX_CSR13, ®); + tsf = (u64)rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32; + rt2x00pci_register_read(rt2x00dev, TXRX_CSR12, ®); + tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER); + + return tsf; +} + +static void rt61pci_reset_tsf(struct ieee80211_hw *hw) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + + rt2x00pci_register_write(rt2x00dev, TXRX_CSR12, 0); + rt2x00pci_register_write(rt2x00dev, TXRX_CSR13, 0); +} + +static const struct ieee80211_ops rt61pci_mac80211_ops = { + .tx = rt2x00lib_tx, + .reset = rt2x00lib_reset, + .open = rt2x00lib_open, + .stop = rt2x00lib_stop, + .add_interface = rt2x00lib_add_interface, + .remove_interface = rt2x00lib_remove_interface, + .config = rt2x00lib_config, + .config_interface = rt2x00lib_config_interface, + .set_multicast_list = rt2x00lib_set_multicast_list, + .get_stats = rt61pci_get_stats, + .set_retry_limit = rt61pci_set_retry_limit, + .conf_tx = rt2x00lib_conf_tx, + .get_tx_stats = rt2x00lib_get_tx_stats, + .get_tsf = rt61pci_get_tsf, + .reset_tsf = rt61pci_reset_tsf, + .beacon_update = rt2x00pci_beacon_update, +}; + +static const struct rt2x00lib_ops rt61pci_rt2x00_ops = { + .irq_handler = rt61pci_interrupt, + .init_hw = rt61pci_init_hw, + .get_fw_name = rt61pci_get_fw_name, + .load_firmware = rt61pci_load_firmware, + .initialize = rt2x00pci_initialize, + .uninitialize = rt2x00pci_uninitialize, + .set_device_state = rt61pci_set_device_state, +#ifdef CONFIG_RT61PCI_RFKILL + .rfkill_poll = rt61pci_rfkill_poll, +#endif /* CONFIG_RT61PCI_RFKILL */ + .link_tuner = rt61pci_link_tuner, + .write_tx_desc = rt61pci_write_tx_desc, + .write_tx_data = rt2x00pci_write_tx_data, + .kick_tx_queue = rt61pci_kick_tx_queue, + .config_type = rt61pci_config_type, + .config_phymode = rt61pci_config_phymode, + .config_channel = rt61pci_config_channel, + .config_mac_addr = rt61pci_config_mac_addr, + .config_bssid = rt61pci_config_bssid, + .config_promisc = rt61pci_config_promisc, + .config_txpower = rt61pci_config_txpower, + .config_antenna = rt61pci_config_antenna, + .config_duration = rt61pci_config_duration, +}; + +static const struct rt2x00_ops rt61pci_ops = { + .name = DRV_NAME, + .rxd_size = RXD_DESC_SIZE, + .txd_size = TXD_DESC_SIZE, + .lib = &rt61pci_rt2x00_ops, + .hw = &rt61pci_mac80211_ops, +#ifdef CONFIG_RT2X00_LIB_DEBUGFS + .debugfs = &rt61pci_rt2x00debug, +#endif /* CONFIG_RT2X00_LIB_DEBUGFS */ +}; + +/* + * RT61pci module information. + */ +static struct pci_device_id rt61pci_device_table[] = { + /* RT2561s */ + { PCI_DEVICE(0x1814, 0x0301), PCI_DEVICE_DATA(&rt61pci_ops) }, + /* RT2561 v2 */ + { PCI_DEVICE(0x1814, 0x0302), PCI_DEVICE_DATA(&rt61pci_ops) }, + /* RT2661 */ + { PCI_DEVICE(0x1814, 0x0401), PCI_DEVICE_DATA(&rt61pci_ops) }, + { 0, } +}; + +MODULE_AUTHOR(DRV_PROJECT); +MODULE_VERSION(DRV_VERSION); +MODULE_DESCRIPTION("Ralink RT61 PCI & PCMCIA Wireless LAN driver."); +MODULE_SUPPORTED_DEVICE("Ralink RT2561, RT2561s & RT2661 " + "PCI & PCMCIA chipset based cards"); +MODULE_DEVICE_TABLE(pci, rt61pci_device_table); +MODULE_FIRMWARE(FIRMWARE_RT2561); +MODULE_FIRMWARE(FIRMWARE_RT2561s); +MODULE_FIRMWARE(FIRMWARE_RT2661); +MODULE_LICENSE("GPL"); + +static struct pci_driver rt61pci_driver = { + .name = DRV_NAME, + .id_table = rt61pci_device_table, + .probe = rt2x00pci_probe, + .remove = __devexit_p(rt2x00pci_remove), +#ifdef CONFIG_PM + .suspend = rt2x00pci_suspend, + .resume = rt2x00pci_resume, +#endif /* CONFIG_PM */ +}; + +static int __init rt61pci_init(void) +{ + printk(KERN_INFO "Loading module: %s - %s by %s.\n", + DRV_NAME, DRV_VERSION, DRV_PROJECT); + return pci_register_driver(&rt61pci_driver); +} + +static void __exit rt61pci_exit(void) +{ + printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME); + pci_unregister_driver(&rt61pci_driver); +} + +module_init(rt61pci_init); +module_exit(rt61pci_exit); |