diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 1817 |
1 files changed, 1817 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c new file mode 100644 index 000000000000..5c7d74a6f16e --- /dev/null +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -0,0 +1,1817 @@ +/* + Copyright (C) 2009 Bartlomiej Zolnierkiewicz + + Based on the original rt2800pci.c and rt2800usb.c: + + Copyright (C) 2004 - 2009 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: rt2800lib + Abstract: rt2800 generic device routines. + */ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include "rt2x00.h" +#ifdef CONFIG_RT2800USB +#include "rt2x00usb.h" +#endif +#include "rt2800lib.h" +#include "rt2800.h" +#include "rt2800usb.h" + +MODULE_AUTHOR("Bartlomiej Zolnierkiewicz"); +MODULE_DESCRIPTION("rt2800 library"); +MODULE_LICENSE("GPL"); + +/* + * Register access. + * All access to the CSR registers will go through the methods + * rt2800_register_read and rt2800_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. + * The _lock versions must be used if you already hold the csr_mutex + */ +#define WAIT_FOR_BBP(__dev, __reg) \ + rt2800_regbusy_read((__dev), BBP_CSR_CFG, BBP_CSR_CFG_BUSY, (__reg)) +#define WAIT_FOR_RFCSR(__dev, __reg) \ + rt2800_regbusy_read((__dev), RF_CSR_CFG, RF_CSR_CFG_BUSY, (__reg)) +#define WAIT_FOR_RF(__dev, __reg) \ + rt2800_regbusy_read((__dev), RF_CSR_CFG0, RF_CSR_CFG0_BUSY, (__reg)) +#define WAIT_FOR_MCU(__dev, __reg) \ + rt2800_regbusy_read((__dev), H2M_MAILBOX_CSR, \ + H2M_MAILBOX_CSR_OWNER, (__reg)) + +static void rt2800_bbp_write(struct rt2x00_dev *rt2x00dev, + const unsigned int word, const u8 value) +{ + u32 reg; + + mutex_lock(&rt2x00dev->csr_mutex); + + /* + * Wait until the BBP becomes available, afterwards we + * can safely write the new data into the register. + */ + if (WAIT_FOR_BBP(rt2x00dev, ®)) { + reg = 0; + rt2x00_set_field32(®, BBP_CSR_CFG_VALUE, value); + rt2x00_set_field32(®, BBP_CSR_CFG_REGNUM, word); + rt2x00_set_field32(®, BBP_CSR_CFG_BUSY, 1); + rt2x00_set_field32(®, BBP_CSR_CFG_READ_CONTROL, 0); + if (rt2x00_intf_is_pci(rt2x00dev)) + rt2x00_set_field32(®, BBP_CSR_CFG_BBP_RW_MODE, 1); + + rt2800_register_write_lock(rt2x00dev, BBP_CSR_CFG, reg); + } + + mutex_unlock(&rt2x00dev->csr_mutex); +} + +static void rt2800_bbp_read(struct rt2x00_dev *rt2x00dev, + const unsigned int word, u8 *value) +{ + u32 reg; + + mutex_lock(&rt2x00dev->csr_mutex); + + /* + * Wait until the BBP becomes available, afterwards we + * can safely write the read request into the register. + * After the data has been written, we wait until hardware + * returns the correct value, if at any time the register + * doesn't become available in time, reg will be 0xffffffff + * which means we return 0xff to the caller. + */ + if (WAIT_FOR_BBP(rt2x00dev, ®)) { + reg = 0; + rt2x00_set_field32(®, BBP_CSR_CFG_REGNUM, word); + rt2x00_set_field32(®, BBP_CSR_CFG_BUSY, 1); + rt2x00_set_field32(®, BBP_CSR_CFG_READ_CONTROL, 1); + if (rt2x00_intf_is_pci(rt2x00dev)) + rt2x00_set_field32(®, BBP_CSR_CFG_BBP_RW_MODE, 1); + + rt2800_register_write_lock(rt2x00dev, BBP_CSR_CFG, reg); + + WAIT_FOR_BBP(rt2x00dev, ®); + } + + *value = rt2x00_get_field32(reg, BBP_CSR_CFG_VALUE); + + mutex_unlock(&rt2x00dev->csr_mutex); +} + +static void rt2800_rfcsr_write(struct rt2x00_dev *rt2x00dev, + const unsigned int word, const u8 value) +{ + u32 reg; + + mutex_lock(&rt2x00dev->csr_mutex); + + /* + * Wait until the RFCSR becomes available, afterwards we + * can safely write the new data into the register. + */ + if (WAIT_FOR_RFCSR(rt2x00dev, ®)) { + reg = 0; + rt2x00_set_field32(®, RF_CSR_CFG_DATA, value); + rt2x00_set_field32(®, RF_CSR_CFG_REGNUM, word); + rt2x00_set_field32(®, RF_CSR_CFG_WRITE, 1); + rt2x00_set_field32(®, RF_CSR_CFG_BUSY, 1); + + rt2800_register_write_lock(rt2x00dev, RF_CSR_CFG, reg); + } + + mutex_unlock(&rt2x00dev->csr_mutex); +} + +static void rt2800_rfcsr_read(struct rt2x00_dev *rt2x00dev, + const unsigned int word, u8 *value) +{ + u32 reg; + + mutex_lock(&rt2x00dev->csr_mutex); + + /* + * Wait until the RFCSR becomes available, afterwards we + * can safely write the read request into the register. + * After the data has been written, we wait until hardware + * returns the correct value, if at any time the register + * doesn't become available in time, reg will be 0xffffffff + * which means we return 0xff to the caller. + */ + if (WAIT_FOR_RFCSR(rt2x00dev, ®)) { + reg = 0; + rt2x00_set_field32(®, RF_CSR_CFG_REGNUM, word); + rt2x00_set_field32(®, RF_CSR_CFG_WRITE, 0); + rt2x00_set_field32(®, RF_CSR_CFG_BUSY, 1); + + rt2800_register_write_lock(rt2x00dev, RF_CSR_CFG, reg); + + WAIT_FOR_RFCSR(rt2x00dev, ®); + } + + *value = rt2x00_get_field32(reg, RF_CSR_CFG_DATA); + + mutex_unlock(&rt2x00dev->csr_mutex); +} + +static void rt2800_rf_write(struct rt2x00_dev *rt2x00dev, + const unsigned int word, const u32 value) +{ + u32 reg; + + mutex_lock(&rt2x00dev->csr_mutex); + + /* + * Wait until the RF becomes available, afterwards we + * can safely write the new data into the register. + */ + if (WAIT_FOR_RF(rt2x00dev, ®)) { + reg = 0; + rt2x00_set_field32(®, RF_CSR_CFG0_REG_VALUE_BW, value); + rt2x00_set_field32(®, RF_CSR_CFG0_STANDBYMODE, 0); + rt2x00_set_field32(®, RF_CSR_CFG0_SEL, 0); + rt2x00_set_field32(®, RF_CSR_CFG0_BUSY, 1); + + rt2800_register_write_lock(rt2x00dev, RF_CSR_CFG0, reg); + rt2x00_rf_write(rt2x00dev, word, value); + } + + mutex_unlock(&rt2x00dev->csr_mutex); +} + +void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev, + const u8 command, const u8 token, + const u8 arg0, const u8 arg1) +{ + u32 reg; + + if (rt2x00_intf_is_pci(rt2x00dev)) { + /* + * RT2880 and RT3052 don't support MCU requests. + */ + if (rt2x00_rt(&rt2x00dev->chip, RT2880) || + rt2x00_rt(&rt2x00dev->chip, RT3052)) + return; + } + + mutex_lock(&rt2x00dev->csr_mutex); + + /* + * Wait until the MCU becomes available, afterwards we + * can safely write the new data into the register. + */ + if (WAIT_FOR_MCU(rt2x00dev, ®)) { + 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); + rt2800_register_write_lock(rt2x00dev, H2M_MAILBOX_CSR, reg); + + reg = 0; + rt2x00_set_field32(®, HOST_CMD_CSR_HOST_COMMAND, command); + rt2800_register_write_lock(rt2x00dev, HOST_CMD_CSR, reg); + } + + mutex_unlock(&rt2x00dev->csr_mutex); +} +EXPORT_SYMBOL_GPL(rt2800_mcu_request); + +#ifdef CONFIG_RT2X00_LIB_DEBUGFS +const struct rt2x00debug rt2800_rt2x00debug = { + .owner = THIS_MODULE, + .csr = { + .read = rt2800_register_read, + .write = rt2800_register_write, + .flags = RT2X00DEBUGFS_OFFSET, + .word_base = CSR_REG_BASE, + .word_size = sizeof(u32), + .word_count = CSR_REG_SIZE / sizeof(u32), + }, + .eeprom = { + .read = rt2x00_eeprom_read, + .write = rt2x00_eeprom_write, + .word_base = EEPROM_BASE, + .word_size = sizeof(u16), + .word_count = EEPROM_SIZE / sizeof(u16), + }, + .bbp = { + .read = rt2800_bbp_read, + .write = rt2800_bbp_write, + .word_base = BBP_BASE, + .word_size = sizeof(u8), + .word_count = BBP_SIZE / sizeof(u8), + }, + .rf = { + .read = rt2x00_rf_read, + .write = rt2800_rf_write, + .word_base = RF_BASE, + .word_size = sizeof(u32), + .word_count = RF_SIZE / sizeof(u32), + }, +}; +EXPORT_SYMBOL_GPL(rt2800_rt2x00debug); +#endif /* CONFIG_RT2X00_LIB_DEBUGFS */ + +int rt2800_rfkill_poll(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + rt2800_register_read(rt2x00dev, GPIO_CTRL_CFG, ®); + return rt2x00_get_field32(reg, GPIO_CTRL_CFG_BIT2); +} +EXPORT_SYMBOL_GPL(rt2800_rfkill_poll); + +#ifdef CONFIG_RT2X00_LIB_LEDS +static void rt2800_brightness_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct rt2x00_led *led = + container_of(led_cdev, struct rt2x00_led, led_dev); + unsigned int enabled = brightness != LED_OFF; + unsigned int bg_mode = + (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_2GHZ); + unsigned int polarity = + rt2x00_get_field16(led->rt2x00dev->led_mcu_reg, + EEPROM_FREQ_LED_POLARITY); + unsigned int ledmode = + rt2x00_get_field16(led->rt2x00dev->led_mcu_reg, + EEPROM_FREQ_LED_MODE); + + if (led->type == LED_TYPE_RADIO) { + rt2800_mcu_request(led->rt2x00dev, MCU_LED, 0xff, ledmode, + enabled ? 0x20 : 0); + } else if (led->type == LED_TYPE_ASSOC) { + rt2800_mcu_request(led->rt2x00dev, MCU_LED, 0xff, ledmode, + enabled ? (bg_mode ? 0x60 : 0xa0) : 0x20); + } else if (led->type == LED_TYPE_QUALITY) { + /* + * The brightness is divided into 6 levels (0 - 5), + * The specs tell us the following levels: + * 0, 1 ,3, 7, 15, 31 + * to determine the level in a simple way we can simply + * work with bitshifting: + * (1 << level) - 1 + */ + rt2800_mcu_request(led->rt2x00dev, MCU_LED_STRENGTH, 0xff, + (1 << brightness / (LED_FULL / 6)) - 1, + polarity); + } +} + +static int rt2800_blink_set(struct led_classdev *led_cdev, + unsigned long *delay_on, unsigned long *delay_off) +{ + struct rt2x00_led *led = + container_of(led_cdev, struct rt2x00_led, led_dev); + u32 reg; + + rt2800_register_read(led->rt2x00dev, LED_CFG, ®); + rt2x00_set_field32(®, LED_CFG_ON_PERIOD, *delay_on); + rt2x00_set_field32(®, LED_CFG_OFF_PERIOD, *delay_off); + rt2x00_set_field32(®, LED_CFG_SLOW_BLINK_PERIOD, 3); + rt2x00_set_field32(®, LED_CFG_R_LED_MODE, 3); + rt2x00_set_field32(®, LED_CFG_G_LED_MODE, 12); + rt2x00_set_field32(®, LED_CFG_Y_LED_MODE, 3); + rt2x00_set_field32(®, LED_CFG_LED_POLAR, 1); + rt2800_register_write(led->rt2x00dev, LED_CFG, reg); + + return 0; +} + +void rt2800_init_led(struct rt2x00_dev *rt2x00dev, + struct rt2x00_led *led, enum led_type type) +{ + led->rt2x00dev = rt2x00dev; + led->type = type; + led->led_dev.brightness_set = rt2800_brightness_set; + led->led_dev.blink_set = rt2800_blink_set; + led->flags = LED_INITIALIZED; +} +EXPORT_SYMBOL_GPL(rt2800_init_led); +#endif /* CONFIG_RT2X00_LIB_LEDS */ + +/* + * Configuration handlers. + */ +static void rt2800_config_wcid_attr(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_crypto *crypto, + struct ieee80211_key_conf *key) +{ + struct mac_wcid_entry wcid_entry; + struct mac_iveiv_entry iveiv_entry; + u32 offset; + u32 reg; + + offset = MAC_WCID_ATTR_ENTRY(key->hw_key_idx); + + rt2800_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_KEYTAB, + !!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_CIPHER, + (crypto->cmd == SET_KEY) * crypto->cipher); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_BSS_IDX, + (crypto->cmd == SET_KEY) * crypto->bssidx); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_RX_WIUDF, crypto->cipher); + rt2800_register_write(rt2x00dev, offset, reg); + + offset = MAC_IVEIV_ENTRY(key->hw_key_idx); + + memset(&iveiv_entry, 0, sizeof(iveiv_entry)); + if ((crypto->cipher == CIPHER_TKIP) || + (crypto->cipher == CIPHER_TKIP_NO_MIC) || + (crypto->cipher == CIPHER_AES)) + iveiv_entry.iv[3] |= 0x20; + iveiv_entry.iv[3] |= key->keyidx << 6; + rt2800_register_multiwrite(rt2x00dev, offset, + &iveiv_entry, sizeof(iveiv_entry)); + + offset = MAC_WCID_ENTRY(key->hw_key_idx); + + memset(&wcid_entry, 0, sizeof(wcid_entry)); + if (crypto->cmd == SET_KEY) + memcpy(&wcid_entry, crypto->address, ETH_ALEN); + rt2800_register_multiwrite(rt2x00dev, offset, + &wcid_entry, sizeof(wcid_entry)); +} + +int rt2800_config_shared_key(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_crypto *crypto, + struct ieee80211_key_conf *key) +{ + struct hw_key_entry key_entry; + struct rt2x00_field32 field; + u32 offset; + u32 reg; + + if (crypto->cmd == SET_KEY) { + key->hw_key_idx = (4 * crypto->bssidx) + key->keyidx; + + memcpy(key_entry.key, crypto->key, + sizeof(key_entry.key)); + memcpy(key_entry.tx_mic, crypto->tx_mic, + sizeof(key_entry.tx_mic)); + memcpy(key_entry.rx_mic, crypto->rx_mic, + sizeof(key_entry.rx_mic)); + + offset = SHARED_KEY_ENTRY(key->hw_key_idx); + rt2800_register_multiwrite(rt2x00dev, offset, + &key_entry, sizeof(key_entry)); + } + + /* + * The cipher types are stored over multiple registers + * starting with SHARED_KEY_MODE_BASE each word will have + * 32 bits and contains the cipher types for 2 bssidx each. + * Using the correct defines correctly will cause overhead, + * so just calculate the correct offset. + */ + field.bit_offset = 4 * (key->hw_key_idx % 8); + field.bit_mask = 0x7 << field.bit_offset; + + offset = SHARED_KEY_MODE_ENTRY(key->hw_key_idx / 8); + + rt2800_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, field, + (crypto->cmd == SET_KEY) * crypto->cipher); + rt2800_register_write(rt2x00dev, offset, reg); + + /* + * Update WCID information + */ + rt2800_config_wcid_attr(rt2x00dev, crypto, key); + + return 0; +} +EXPORT_SYMBOL_GPL(rt2800_config_shared_key); + +int rt2800_config_pairwise_key(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_crypto *crypto, + struct ieee80211_key_conf *key) +{ + struct hw_key_entry key_entry; + u32 offset; + + if (crypto->cmd == SET_KEY) { + /* + * 1 pairwise key is possible per AID, this means that the AID + * equals our hw_key_idx. Make sure the WCID starts _after_ the + * last possible shared key entry. + */ + if (crypto->aid > (256 - 32)) + return -ENOSPC; + + key->hw_key_idx = 32 + crypto->aid; + + memcpy(key_entry.key, crypto->key, + sizeof(key_entry.key)); + memcpy(key_entry.tx_mic, crypto->tx_mic, + sizeof(key_entry.tx_mic)); + memcpy(key_entry.rx_mic, crypto->rx_mic, + sizeof(key_entry.rx_mic)); + + offset = PAIRWISE_KEY_ENTRY(key->hw_key_idx); + rt2800_register_multiwrite(rt2x00dev, offset, + &key_entry, sizeof(key_entry)); + } + + /* + * Update WCID information + */ + rt2800_config_wcid_attr(rt2x00dev, crypto, key); + + return 0; +} +EXPORT_SYMBOL_GPL(rt2800_config_pairwise_key); + +void rt2800_config_filter(struct rt2x00_dev *rt2x00dev, + const unsigned int filter_flags) +{ + u32 reg; + + /* + * Start configuration steps. + * Note that the version error will always be dropped + * and broadcast frames will always be accepted since + * there is no filter for it at this time. + */ + rt2800_register_read(rt2x00dev, RX_FILTER_CFG, ®); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_CRC_ERROR, + !(filter_flags & FIF_FCSFAIL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_PHY_ERROR, + !(filter_flags & FIF_PLCPFAIL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_NOT_TO_ME, + !(filter_flags & FIF_PROMISC_IN_BSS)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_NOT_MY_BSSD, 0); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_VER_ERROR, 1); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_MULTICAST, + !(filter_flags & FIF_ALLMULTI)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_BROADCAST, 0); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_DUPLICATE, 1); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_CF_END_ACK, + !(filter_flags & FIF_CONTROL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_CF_END, + !(filter_flags & FIF_CONTROL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_ACK, + !(filter_flags & FIF_CONTROL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_CTS, + !(filter_flags & FIF_CONTROL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_RTS, + !(filter_flags & FIF_CONTROL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_PSPOLL, + !(filter_flags & FIF_PSPOLL)); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_BA, 1); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_BAR, 0); + rt2x00_set_field32(®, RX_FILTER_CFG_DROP_CNTL, + !(filter_flags & FIF_CONTROL)); + rt2800_register_write(rt2x00dev, RX_FILTER_CFG, reg); +} +EXPORT_SYMBOL_GPL(rt2800_config_filter); + +void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf, + struct rt2x00intf_conf *conf, const unsigned int flags) +{ + unsigned int beacon_base; + u32 reg; + + if (flags & CONFIG_UPDATE_TYPE) { + /* + * Clear current synchronisation setup. + * For the Beacon base registers we only need to clear + * the first byte since that byte contains the VALID and OWNER + * bits which (when set to 0) will invalidate the entire beacon. + */ + beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx); + rt2800_register_write(rt2x00dev, beacon_base, 0); + + /* + * Enable synchronisation. + */ + rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®); + rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 1); + rt2x00_set_field32(®, BCN_TIME_CFG_TSF_SYNC, conf->sync); + rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 1); + rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); + } + + if (flags & CONFIG_UPDATE_MAC) { + reg = le32_to_cpu(conf->mac[1]); + rt2x00_set_field32(®, MAC_ADDR_DW1_UNICAST_TO_ME_MASK, 0xff); + conf->mac[1] = cpu_to_le32(reg); + + rt2800_register_multiwrite(rt2x00dev, MAC_ADDR_DW0, + conf->mac, sizeof(conf->mac)); + } + + if (flags & CONFIG_UPDATE_BSSID) { + reg = le32_to_cpu(conf->bssid[1]); + rt2x00_set_field32(®, MAC_BSSID_DW1_BSS_ID_MASK, 0); + rt2x00_set_field32(®, MAC_BSSID_DW1_BSS_BCN_NUM, 0); + conf->bssid[1] = cpu_to_le32(reg); + + rt2800_register_multiwrite(rt2x00dev, MAC_BSSID_DW0, + conf->bssid, sizeof(conf->bssid)); + } +} +EXPORT_SYMBOL_GPL(rt2800_config_intf); + +void rt2800_config_erp(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_erp *erp) +{ + u32 reg; + + rt2800_register_read(rt2x00dev, TX_TIMEOUT_CFG, ®); + rt2x00_set_field32(®, TX_TIMEOUT_CFG_RX_ACK_TIMEOUT, 0x20); + rt2800_register_write(rt2x00dev, TX_TIMEOUT_CFG, reg); + + rt2800_register_read(rt2x00dev, AUTO_RSP_CFG, ®); + rt2x00_set_field32(®, AUTO_RSP_CFG_BAC_ACK_POLICY, + !!erp->short_preamble); + rt2x00_set_field32(®, AUTO_RSP_CFG_AR_PREAMBLE, + !!erp->short_preamble); + rt2800_register_write(rt2x00dev, AUTO_RSP_CFG, reg); + + rt2800_register_read(rt2x00dev, OFDM_PROT_CFG, ®); + rt2x00_set_field32(®, OFDM_PROT_CFG_PROTECT_CTRL, + erp->cts_protection ? 2 : 0); + rt2800_register_write(rt2x00dev, OFDM_PROT_CFG, reg); + + rt2800_register_write(rt2x00dev, LEGACY_BASIC_RATE, + erp->basic_rates); + rt2800_register_write(rt2x00dev, HT_BASIC_RATE, 0x00008003); + + rt2800_register_read(rt2x00dev, BKOFF_SLOT_CFG, ®); + rt2x00_set_field32(®, BKOFF_SLOT_CFG_SLOT_TIME, erp->slot_time); + rt2x00_set_field32(®, BKOFF_SLOT_CFG_CC_DELAY_TIME, 2); + rt2800_register_write(rt2x00dev, BKOFF_SLOT_CFG, reg); + + rt2800_register_read(rt2x00dev, XIFS_TIME_CFG, ®); + rt2x00_set_field32(®, XIFS_TIME_CFG_CCKM_SIFS_TIME, erp->sifs); + rt2x00_set_field32(®, XIFS_TIME_CFG_OFDM_SIFS_TIME, erp->sifs); + rt2x00_set_field32(®, XIFS_TIME_CFG_OFDM_XIFS_TIME, 4); + rt2x00_set_field32(®, XIFS_TIME_CFG_EIFS, erp->eifs); + rt2x00_set_field32(®, XIFS_TIME_CFG_BB_RXEND_ENABLE, 1); + rt2800_register_write(rt2x00dev, XIFS_TIME_CFG, reg); + + rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®); + rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_INTERVAL, + erp->beacon_int * 16); + rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); +} +EXPORT_SYMBOL_GPL(rt2800_config_erp); + +void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant) +{ + u8 r1; + u8 r3; + + rt2800_bbp_read(rt2x00dev, 1, &r1); + rt2800_bbp_read(rt2x00dev, 3, &r3); + + /* + * Configure the TX antenna. + */ + switch ((int)ant->tx) { + case 1: + rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 0); + if (rt2x00_intf_is_pci(rt2x00dev)) + rt2x00_set_field8(&r3, BBP3_RX_ANTENNA, 0); + break; + case 2: + rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 2); + break; + case 3: + /* Do nothing */ + break; + } + + /* + * Configure the RX antenna. + */ + switch ((int)ant->rx) { + case 1: + rt2x00_set_field8(&r3, BBP3_RX_ANTENNA, 0); + break; + case 2: + rt2x00_set_field8(&r3, BBP3_RX_ANTENNA, 1); + break; + case 3: + rt2x00_set_field8(&r3, BBP3_RX_ANTENNA, 2); + break; + } + + rt2800_bbp_write(rt2x00dev, 3, r3); + rt2800_bbp_write(rt2x00dev, 1, r1); +} +EXPORT_SYMBOL_GPL(rt2800_config_ant); + +static void rt2800_config_lna_gain(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_conf *libconf) +{ + u16 eeprom; + short lna_gain; + + if (libconf->rf.channel <= 14) { + rt2x00_eeprom_read(rt2x00dev, EEPROM_LNA, &eeprom); + lna_gain = rt2x00_get_field16(eeprom, EEPROM_LNA_BG); + } else if (libconf->rf.channel <= 64) { + rt2x00_eeprom_read(rt2x00dev, EEPROM_LNA, &eeprom); + lna_gain = rt2x00_get_field16(eeprom, EEPROM_LNA_A0); + } else if (libconf->rf.channel <= 128) { + rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_BG2, &eeprom); + lna_gain = rt2x00_get_field16(eeprom, EEPROM_RSSI_BG2_LNA_A1); + } else { + rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_A2, &eeprom); + lna_gain = rt2x00_get_field16(eeprom, EEPROM_RSSI_A2_LNA_A2); + } + + rt2x00dev->lna_gain = lna_gain; +} + +static void rt2800_config_channel_rt2x(struct rt2x00_dev *rt2x00dev, + struct ieee80211_conf *conf, + struct rf_channel *rf, + struct channel_info *info) +{ + rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset); + + if (rt2x00dev->default_ant.tx == 1) + rt2x00_set_field32(&rf->rf2, RF2_ANTENNA_TX1, 1); + + if (rt2x00dev->default_ant.rx == 1) { + rt2x00_set_field32(&rf->rf2, RF2_ANTENNA_RX1, 1); + rt2x00_set_field32(&rf->rf2, RF2_ANTENNA_RX2, 1); + } else if (rt2x00dev->default_ant.rx == 2) + rt2x00_set_field32(&rf->rf2, RF2_ANTENNA_RX2, 1); + + if (rf->channel > 14) { + /* + * When TX power is below 0, we should increase it by 7 to + * make it a positive value (Minumum value is -7). + * However this means that values between 0 and 7 have + * double meaning, and we should set a 7DBm boost flag. + */ + rt2x00_set_field32(&rf->rf3, RF3_TXPOWER_A_7DBM_BOOST, + (info->tx_power1 >= 0)); + + if (info->tx_power1 < 0) + info->tx_power1 += 7; + + rt2x00_set_field32(&rf->rf3, RF3_TXPOWER_A, + TXPOWER_A_TO_DEV(info->tx_power1)); + + rt2x00_set_field32(&rf->rf4, RF4_TXPOWER_A_7DBM_BOOST, + (info->tx_power2 >= 0)); + + if (info->tx_power2 < 0) + info->tx_power2 += 7; + + rt2x00_set_field32(&rf->rf4, RF4_TXPOWER_A, + TXPOWER_A_TO_DEV(info->tx_power2)); + } else { + rt2x00_set_field32(&rf->rf3, RF3_TXPOWER_G, + TXPOWER_G_TO_DEV(info->tx_power1)); + rt2x00_set_field32(&rf->rf4, RF4_TXPOWER_G, + TXPOWER_G_TO_DEV(info->tx_power2)); + } + + rt2x00_set_field32(&rf->rf4, RF4_HT40, conf_is_ht40(conf)); + + rt2800_rf_write(rt2x00dev, 1, rf->rf1); + rt2800_rf_write(rt2x00dev, 2, rf->rf2); + rt2800_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004); + rt2800_rf_write(rt2x00dev, 4, rf->rf4); + + udelay(200); + + rt2800_rf_write(rt2x00dev, 1, rf->rf1); + rt2800_rf_write(rt2x00dev, 2, rf->rf2); + rt2800_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004); + rt2800_rf_write(rt2x00dev, 4, rf->rf4); + + udelay(200); + + rt2800_rf_write(rt2x00dev, 1, rf->rf1); + rt2800_rf_write(rt2x00dev, 2, rf->rf2); + rt2800_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004); + rt2800_rf_write(rt2x00dev, 4, rf->rf4); +} + +static void rt2800_config_channel_rt3x(struct rt2x00_dev *rt2x00dev, + struct ieee80211_conf *conf, + struct rf_channel *rf, + struct channel_info *info) +{ + u8 rfcsr; + + rt2800_rfcsr_write(rt2x00dev, 2, rf->rf1); + rt2800_rfcsr_write(rt2x00dev, 2, rf->rf3); + + rt2800_rfcsr_read(rt2x00dev, 6, &rfcsr); + rt2x00_set_field8(&rfcsr, RFCSR6_R, rf->rf2); + rt2800_rfcsr_write(rt2x00dev, 6, rfcsr); + + rt2800_rfcsr_read(rt2x00dev, 12, &rfcsr); + rt2x00_set_field8(&rfcsr, RFCSR12_TX_POWER, + TXPOWER_G_TO_DEV(info->tx_power1)); + rt2800_rfcsr_write(rt2x00dev, 12, rfcsr); + + rt2800_rfcsr_read(rt2x00dev, 23, &rfcsr); + rt2x00_set_field8(&rfcsr, RFCSR23_FREQ_OFFSET, rt2x00dev->freq_offset); + rt2800_rfcsr_write(rt2x00dev, 23, rfcsr); + + rt2800_rfcsr_write(rt2x00dev, 24, + rt2x00dev->calibration[conf_is_ht40(conf)]); + + rt2800_rfcsr_read(rt2x00dev, 23, &rfcsr); + rt2x00_set_field8(&rfcsr, RFCSR7_RF_TUNING, 1); + rt2800_rfcsr_write(rt2x00dev, 23, rfcsr); +} + +static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev, + struct ieee80211_conf *conf, + struct rf_channel *rf, + struct channel_info *info) +{ + u32 reg; + unsigned int tx_pin; + u8 bbp; + + if (rt2x00_rev(&rt2x00dev->chip) != RT3070_VERSION) + rt2800_config_channel_rt2x(rt2x00dev, conf, rf, info); + else + rt2800_config_channel_rt3x(rt2x00dev, conf, rf, info); + + /* + * Change BBP settings + */ + rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain); + rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain); + rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain); + rt2800_bbp_write(rt2x00dev, 86, 0); + + if (rf->channel <= 14) { + if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) { + rt2800_bbp_write(rt2x00dev, 82, 0x62); + rt2800_bbp_write(rt2x00dev, 75, 0x46); + } else { + rt2800_bbp_write(rt2x00dev, 82, 0x84); + rt2800_bbp_write(rt2x00dev, 75, 0x50); + } + } else { + rt2800_bbp_write(rt2x00dev, 82, 0xf2); + + if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) + rt2800_bbp_write(rt2x00dev, 75, 0x46); + else + rt2800_bbp_write(rt2x00dev, 75, 0x50); + } + + rt2800_register_read(rt2x00dev, TX_BAND_CFG, ®); + rt2x00_set_field32(®, TX_BAND_CFG_HT40_PLUS, conf_is_ht40_plus(conf)); + rt2x00_set_field32(®, TX_BAND_CFG_A, rf->channel > 14); + rt2x00_set_field32(®, TX_BAND_CFG_BG, rf->channel <= 14); + rt2800_register_write(rt2x00dev, TX_BAND_CFG, reg); + + tx_pin = 0; + + /* Turn on unused PA or LNA when not using 1T or 1R */ + if (rt2x00dev->default_ant.tx != 1) { + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A1_EN, 1); + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G1_EN, 1); + } + + /* Turn on unused PA or LNA when not using 1T or 1R */ + if (rt2x00dev->default_ant.rx != 1) { + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN, 1); + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN, 1); + } + + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A0_EN, 1); + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G0_EN, 1); + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_RFTR_EN, 1); + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_TRSW_EN, 1); + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN, rf->channel <= 14); + rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A0_EN, rf->channel > 14); + + rt2800_register_write(rt2x00dev, TX_PIN_CFG, tx_pin); + + rt2800_bbp_read(rt2x00dev, 4, &bbp); + rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * conf_is_ht40(conf)); + rt2800_bbp_write(rt2x00dev, 4, bbp); + + rt2800_bbp_read(rt2x00dev, 3, &bbp); + rt2x00_set_field8(&bbp, BBP3_HT40_PLUS, conf_is_ht40_plus(conf)); + rt2800_bbp_write(rt2x00dev, 3, bbp); + + if (rt2x00_rev(&rt2x00dev->chip) == RT2860C_VERSION) { + if (conf_is_ht40(conf)) { + rt2800_bbp_write(rt2x00dev, 69, 0x1a); + rt2800_bbp_write(rt2x00dev, 70, 0x0a); + rt2800_bbp_write(rt2x00dev, 73, 0x16); + } else { + rt2800_bbp_write(rt2x00dev, 69, 0x16); + rt2800_bbp_write(rt2x00dev, 70, 0x08); + rt2800_bbp_write(rt2x00dev, 73, 0x11); + } + } + + msleep(1); +} + +static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, + const int txpower) +{ + u32 reg; + u32 value = TXPOWER_G_TO_DEV(txpower); + u8 r1; + + rt2800_bbp_read(rt2x00dev, 1, &r1); + rt2x00_set_field8(®, BBP1_TX_POWER, 0); + rt2800_bbp_write(rt2x00dev, 1, r1); + + rt2800_register_read(rt2x00dev, TX_PWR_CFG_0, ®); + rt2x00_set_field32(®, TX_PWR_CFG_0_1MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_0_2MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_0_55MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_0_11MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_0_6MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_0_9MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_0_12MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_0_18MBS, value); + rt2800_register_write(rt2x00dev, TX_PWR_CFG_0, reg); + + rt2800_register_read(rt2x00dev, TX_PWR_CFG_1, ®); + rt2x00_set_field32(®, TX_PWR_CFG_1_24MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_1_36MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_1_48MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_1_54MBS, value); + rt2x00_set_field32(®, TX_PWR_CFG_1_MCS0, value); + rt2x00_set_field32(®, TX_PWR_CFG_1_MCS1, value); + rt2x00_set_field32(®, TX_PWR_CFG_1_MCS2, value); + rt2x00_set_field32(®, TX_PWR_CFG_1_MCS3, value); + rt2800_register_write(rt2x00dev, TX_PWR_CFG_1, reg); + + rt2800_register_read(rt2x00dev, TX_PWR_CFG_2, ®); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS4, value); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS5, value); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS6, value); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS7, value); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS8, value); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS9, value); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS10, value); + rt2x00_set_field32(®, TX_PWR_CFG_2_MCS11, value); + rt2800_register_write(rt2x00dev, TX_PWR_CFG_2, reg); + + rt2800_register_read(rt2x00dev, TX_PWR_CFG_3, ®); + rt2x00_set_field32(®, TX_PWR_CFG_3_MCS12, value); + rt2x00_set_field32(®, TX_PWR_CFG_3_MCS13, value); + rt2x00_set_field32(®, TX_PWR_CFG_3_MCS14, value); + rt2x00_set_field32(®, TX_PWR_CFG_3_MCS15, value); + rt2x00_set_field32(®, TX_PWR_CFG_3_UKNOWN1, value); + rt2x00_set_field32(®, TX_PWR_CFG_3_UKNOWN2, value); + rt2x00_set_field32(®, TX_PWR_CFG_3_UKNOWN3, value); + rt2x00_set_field32(®, TX_PWR_CFG_3_UKNOWN4, value); + rt2800_register_write(rt2x00dev, TX_PWR_CFG_3, reg); + + rt2800_register_read(rt2x00dev, TX_PWR_CFG_4, ®); + rt2x00_set_field32(®, TX_PWR_CFG_4_UKNOWN5, value); + rt2x00_set_field32(®, TX_PWR_CFG_4_UKNOWN6, value); + rt2x00_set_field32(®, TX_PWR_CFG_4_UKNOWN7, value); + rt2x00_set_field32(®, TX_PWR_CFG_4_UKNOWN8, value); + rt2800_register_write(rt2x00dev, TX_PWR_CFG_4, reg); +} + +static void rt2800_config_retry_limit(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_conf *libconf) +{ + u32 reg; + + rt2800_register_read(rt2x00dev, TX_RTY_CFG, ®); + rt2x00_set_field32(®, TX_RTY_CFG_SHORT_RTY_LIMIT, + libconf->conf->short_frame_max_tx_count); + rt2x00_set_field32(®, TX_RTY_CFG_LONG_RTY_LIMIT, + libconf->conf->long_frame_max_tx_count); + rt2x00_set_field32(®, TX_RTY_CFG_LONG_RTY_THRE, 2000); + rt2x00_set_field32(®, TX_RTY_CFG_NON_AGG_RTY_MODE, 0); + rt2x00_set_field32(®, TX_RTY_CFG_AGG_RTY_MODE, 0); + rt2x00_set_field32(®, TX_RTY_CFG_TX_AUTO_FB_ENABLE, 1); + rt2800_register_write(rt2x00dev, TX_RTY_CFG, reg); +} + +static void rt2800_config_ps(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_conf *libconf) +{ + enum dev_state state = + (libconf->conf->flags & IEEE80211_CONF_PS) ? + STATE_SLEEP : STATE_AWAKE; + u32 reg; + + if (state == STATE_SLEEP) { + rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0); + + rt2800_register_read(rt2x00dev, AUTOWAKEUP_CFG, ®); + rt2x00_set_field32(®, AUTOWAKEUP_CFG_AUTO_LEAD_TIME, 5); + rt2x00_set_field32(®, AUTOWAKEUP_CFG_TBCN_BEFORE_WAKE, + libconf->conf->listen_interval - 1); + rt2x00_set_field32(®, AUTOWAKEUP_CFG_AUTOWAKE, 1); + rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, reg); + + rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); + } else { + rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); + + rt2800_register_read(rt2x00dev, AUTOWAKEUP_CFG, ®); + rt2x00_set_field32(®, AUTOWAKEUP_CFG_AUTO_LEAD_TIME, 0); + rt2x00_set_field32(®, AUTOWAKEUP_CFG_TBCN_BEFORE_WAKE, 0); + rt2x00_set_field32(®, AUTOWAKEUP_CFG_AUTOWAKE, 0); + rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, reg); + } +} + +void rt2800_config(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_conf *libconf, + const unsigned int flags) +{ + /* Always recalculate LNA gain before changing configuration */ + rt2800_config_lna_gain(rt2x00dev, libconf); + + if (flags & IEEE80211_CONF_CHANGE_CHANNEL) + rt2800_config_channel(rt2x00dev, libconf->conf, + &libconf->rf, &libconf->channel); + if (flags & IEEE80211_CONF_CHANGE_POWER) + rt2800_config_txpower(rt2x00dev, libconf->conf->power_level); + if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS) + rt2800_config_retry_limit(rt2x00dev, libconf); + if (flags & IEEE80211_CONF_CHANGE_PS) + rt2800_config_ps(rt2x00dev, libconf); +} +EXPORT_SYMBOL_GPL(rt2800_config); + +/* + * Link tuning + */ +void rt2800_link_stats(struct rt2x00_dev *rt2x00dev, struct link_qual *qual) +{ + u32 reg; + + /* + * Update FCS error count from register. + */ + rt2800_register_read(rt2x00dev, RX_STA_CNT0, ®); + qual->rx_failed = rt2x00_get_field32(reg, RX_STA_CNT0_CRC_ERR); +} +EXPORT_SYMBOL_GPL(rt2800_link_stats); + +static u8 rt2800_get_default_vgc(struct rt2x00_dev *rt2x00dev) +{ + if (rt2x00dev->curr_band == IEEE80211_BAND_2GHZ) { + if (rt2x00_intf_is_usb(rt2x00dev) && + rt2x00_rev(&rt2x00dev->chip) == RT3070_VERSION) + return 0x1c + (2 * rt2x00dev->lna_gain); + else + return 0x2e + rt2x00dev->lna_gain; + } + + if (!test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags)) + return 0x32 + (rt2x00dev->lna_gain * 5) / 3; + else + return 0x3a + (rt2x00dev->lna_gain * 5) / 3; +} + +static inline void rt2800_set_vgc(struct rt2x00_dev *rt2x00dev, + struct link_qual *qual, u8 vgc_level) +{ + if (qual->vgc_level != vgc_level) { + rt2800_bbp_write(rt2x00dev, 66, vgc_level); + qual->vgc_level = vgc_level; + qual->vgc_level_reg = vgc_level; + } +} + +void rt2800_reset_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual) +{ + rt2800_set_vgc(rt2x00dev, qual, rt2800_get_default_vgc(rt2x00dev)); +} +EXPORT_SYMBOL_GPL(rt2800_reset_tuner); + +void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual, + const u32 count) +{ + if (rt2x00_rev(&rt2x00dev->chip) == RT2860C_VERSION) + return; + + /* + * When RSSI is better then -80 increase VGC level with 0x10 + */ + rt2800_set_vgc(rt2x00dev, qual, + rt2800_get_default_vgc(rt2x00dev) + + ((qual->rssi > -80) * 0x10)); +} +EXPORT_SYMBOL_GPL(rt2800_link_tuner); + +/* + * Initialization functions. + */ +int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + unsigned int i; + + if (rt2x00_intf_is_usb(rt2x00dev)) { + /* + * Wait untill BBP and RF are ready. + */ + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2800_register_read(rt2x00dev, MAC_CSR0, ®); + if (reg && reg != ~0) + break; + msleep(1); + } + + if (i == REGISTER_BUSY_COUNT) { + ERROR(rt2x00dev, "Unstable hardware.\n"); + return -EBUSY; + } + + rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, ®); + rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, + reg & ~0x00002000); + } else if (rt2x00_intf_is_pci(rt2x00dev)) + rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003); + + rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, ®); + rt2x00_set_field32(®, MAC_SYS_CTRL_RESET_CSR, 1); + rt2x00_set_field32(®, MAC_SYS_CTRL_RESET_BBP, 1); + rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg); + + if (rt2x00_intf_is_usb(rt2x00dev)) { + rt2800_register_write(rt2x00dev, USB_DMA_CFG, 0x00000000); +#ifdef CONFIG_RT2800USB + rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0, + USB_MODE_RESET, REGISTER_TIMEOUT); +#endif + } + + rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000); + + rt2800_register_read(rt2x00dev, BCN_OFFSET0, ®); + rt2x00_set_field32(®, BCN_OFFSET0_BCN0, 0xe0); /* 0x3800 */ + rt2x00_set_field32(®, BCN_OFFSET0_BCN1, 0xe8); /* 0x3a00 */ + rt2x00_set_field32(®, BCN_OFFSET0_BCN2, 0xf0); /* 0x3c00 */ + rt2x00_set_field32(®, BCN_OFFSET0_BCN3, 0xf8); /* 0x3e00 */ + rt2800_register_write(rt2x00dev, BCN_OFFSET0, reg); + + rt2800_register_read(rt2x00dev, BCN_OFFSET1, ®); + rt2x00_set_field32(®, BCN_OFFSET1_BCN4, 0xc8); /* 0x3200 */ + rt2x00_set_field32(®, BCN_OFFSET1_BCN5, 0xd0); /* 0x3400 */ + rt2x00_set_field32(®, BCN_OFFSET1_BCN6, 0x77); /* 0x1dc0 */ + rt2x00_set_field32(®, BCN_OFFSET1_BCN7, 0x6f); /* 0x1bc0 */ + rt2800_register_write(rt2x00dev, BCN_OFFSET1, reg); + + rt2800_register_write(rt2x00dev, LEGACY_BASIC_RATE, 0x0000013f); + rt2800_register_write(rt2x00dev, HT_BASIC_RATE, 0x00008003); + + rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000); + + rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®); + rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_INTERVAL, 0); + rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 0); + rt2x00_set_field32(®, BCN_TIME_CFG_TSF_SYNC, 0); + rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 0); + rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 0); + rt2x00_set_field32(®, BCN_TIME_CFG_TX_TIME_COMPENSATE, 0); + rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); + + if (rt2x00_intf_is_usb(rt2x00dev) && + rt2x00_rev(&rt2x00dev->chip) == RT3070_VERSION) { + rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000400); + rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00000000); + rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000); + } else { + rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000000); + rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606); + } + + rt2800_register_read(rt2x00dev, TX_LINK_CFG, ®); + rt2x00_set_field32(®, TX_LINK_CFG_REMOTE_MFB_LIFETIME, 32); + rt2x00_set_field32(®, TX_LINK_CFG_MFB_ENABLE, 0); + rt2x00_set_field32(®, TX_LINK_CFG_REMOTE_UMFS_ENABLE, 0); + rt2x00_set_field32(®, TX_LINK_CFG_TX_MRQ_EN, 0); + rt2x00_set_field32(®, TX_LINK_CFG_TX_RDG_EN, 0); + rt2x00_set_field32(®, TX_LINK_CFG_TX_CF_ACK_EN, 1); + rt2x00_set_field32(®, TX_LINK_CFG_REMOTE_MFB, 0); + rt2x00_set_field32(®, TX_LINK_CFG_REMOTE_MFS, 0); + rt2800_register_write(rt2x00dev, TX_LINK_CFG, reg); + + rt2800_register_read(rt2x00dev, TX_TIMEOUT_CFG, ®); + rt2x00_set_field32(®, TX_TIMEOUT_CFG_MPDU_LIFETIME, 9); + rt2x00_set_field32(®, TX_TIMEOUT_CFG_TX_OP_TIMEOUT, 10); + rt2800_register_write(rt2x00dev, TX_TIMEOUT_CFG, reg); + + rt2800_register_read(rt2x00dev, MAX_LEN_CFG, ®); + rt2x00_set_field32(®, MAX_LEN_CFG_MAX_MPDU, AGGREGATION_SIZE); + if (rt2x00_rev(&rt2x00dev->chip) >= RT2880E_VERSION && + rt2x00_rev(&rt2x00dev->chip) < RT3070_VERSION) + rt2x00_set_field32(®, MAX_LEN_CFG_MAX_PSDU, 2); + else + rt2x00_set_field32(®, MAX_LEN_CFG_MAX_PSDU, 1); + rt2x00_set_field32(®, MAX_LEN_CFG_MIN_PSDU, 0); + rt2x00_set_field32(®, MAX_LEN_CFG_MIN_MPDU, 0); + rt2800_register_write(rt2x00dev, MAX_LEN_CFG, reg); + + rt2800_register_write(rt2x00dev, PBF_MAX_PCNT, 0x1f3fbf9f); + + rt2800_register_read(rt2x00dev, AUTO_RSP_CFG, ®); + rt2x00_set_field32(®, AUTO_RSP_CFG_AUTORESPONDER, 1); + rt2x00_set_field32(®, AUTO_RSP_CFG_CTS_40_MMODE, 0); + rt2x00_set_field32(®, AUTO_RSP_CFG_CTS_40_MREF, 0); + rt2x00_set_field32(®, AUTO_RSP_CFG_DUAL_CTS_EN, 0); + rt2x00_set_field32(®, AUTO_RSP_CFG_ACK_CTS_PSM_BIT, 0); + rt2800_register_write(rt2x00dev, AUTO_RSP_CFG, reg); + + rt2800_register_read(rt2x00dev, CCK_PROT_CFG, ®); + rt2x00_set_field32(®, CCK_PROT_CFG_PROTECT_RATE, 8); + rt2x00_set_field32(®, CCK_PROT_CFG_PROTECT_CTRL, 0); + rt2x00_set_field32(®, CCK_PROT_CFG_PROTECT_NAV, 1); + rt2x00_set_field32(®, CCK_PROT_CFG_TX_OP_ALLOW_CCK, 1); + rt2x00_set_field32(®, CCK_PROT_CFG_TX_OP_ALLOW_OFDM, 1); + rt2x00_set_field32(®, CCK_PROT_CFG_TX_OP_ALLOW_MM20, 1); + rt2x00_set_field32(®, CCK_PROT_CFG_TX_OP_ALLOW_MM40, 1); + rt2x00_set_field32(®, CCK_PROT_CFG_TX_OP_ALLOW_GF20, 1); + rt2x00_set_field32(®, CCK_PROT_CFG_TX_OP_ALLOW_GF40, 1); + rt2800_register_write(rt2x00dev, CCK_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, OFDM_PROT_CFG, ®); + rt2x00_set_field32(®, OFDM_PROT_CFG_PROTECT_RATE, 8); + rt2x00_set_field32(®, OFDM_PROT_CFG_PROTECT_CTRL, 0); + rt2x00_set_field32(®, OFDM_PROT_CFG_PROTECT_NAV, 1); + rt2x00_set_field32(®, OFDM_PROT_CFG_TX_OP_ALLOW_CCK, 1); + rt2x00_set_field32(®, OFDM_PROT_CFG_TX_OP_ALLOW_OFDM, 1); + rt2x00_set_field32(®, OFDM_PROT_CFG_TX_OP_ALLOW_MM20, 1); + rt2x00_set_field32(®, OFDM_PROT_CFG_TX_OP_ALLOW_MM40, 1); + rt2x00_set_field32(®, OFDM_PROT_CFG_TX_OP_ALLOW_GF20, 1); + rt2x00_set_field32(®, OFDM_PROT_CFG_TX_OP_ALLOW_GF40, 1); + rt2800_register_write(rt2x00dev, OFDM_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, MM20_PROT_CFG, ®); + rt2x00_set_field32(®, MM20_PROT_CFG_PROTECT_RATE, 0x4004); + rt2x00_set_field32(®, MM20_PROT_CFG_PROTECT_CTRL, 0); + rt2x00_set_field32(®, MM20_PROT_CFG_PROTECT_NAV, 1); + rt2x00_set_field32(®, MM20_PROT_CFG_TX_OP_ALLOW_CCK, 1); + rt2x00_set_field32(®, MM20_PROT_CFG_TX_OP_ALLOW_OFDM, 1); + rt2x00_set_field32(®, MM20_PROT_CFG_TX_OP_ALLOW_MM20, 1); + rt2x00_set_field32(®, MM20_PROT_CFG_TX_OP_ALLOW_MM40, 0); + rt2x00_set_field32(®, MM20_PROT_CFG_TX_OP_ALLOW_GF20, 1); + rt2x00_set_field32(®, MM20_PROT_CFG_TX_OP_ALLOW_GF40, 0); + rt2800_register_write(rt2x00dev, MM20_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, MM40_PROT_CFG, ®); + rt2x00_set_field32(®, MM40_PROT_CFG_PROTECT_RATE, 0x4084); + rt2x00_set_field32(®, MM40_PROT_CFG_PROTECT_CTRL, 0); + rt2x00_set_field32(®, MM40_PROT_CFG_PROTECT_NAV, 1); + rt2x00_set_field32(®, MM40_PROT_CFG_TX_OP_ALLOW_CCK, 1); + rt2x00_set_field32(®, MM40_PROT_CFG_TX_OP_ALLOW_OFDM, 1); + rt2x00_set_field32(®, MM40_PROT_CFG_TX_OP_ALLOW_MM20, 1); + rt2x00_set_field32(®, MM40_PROT_CFG_TX_OP_ALLOW_MM40, 1); + rt2x00_set_field32(®, MM40_PROT_CFG_TX_OP_ALLOW_GF20, 1); + rt2x00_set_field32(®, MM40_PROT_CFG_TX_OP_ALLOW_GF40, 1); + rt2800_register_write(rt2x00dev, MM40_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, GF20_PROT_CFG, ®); + rt2x00_set_field32(®, GF20_PROT_CFG_PROTECT_RATE, 0x4004); + rt2x00_set_field32(®, GF20_PROT_CFG_PROTECT_CTRL, 0); + rt2x00_set_field32(®, GF20_PROT_CFG_PROTECT_NAV, 1); + rt2x00_set_field32(®, GF20_PROT_CFG_TX_OP_ALLOW_CCK, 1); + rt2x00_set_field32(®, GF20_PROT_CFG_TX_OP_ALLOW_OFDM, 1); + rt2x00_set_field32(®, GF20_PROT_CFG_TX_OP_ALLOW_MM20, 1); + rt2x00_set_field32(®, GF20_PROT_CFG_TX_OP_ALLOW_MM40, 0); + rt2x00_set_field32(®, GF20_PROT_CFG_TX_OP_ALLOW_GF20, 1); + rt2x00_set_field32(®, GF20_PROT_CFG_TX_OP_ALLOW_GF40, 0); + rt2800_register_write(rt2x00dev, GF20_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, GF40_PROT_CFG, ®); + rt2x00_set_field32(®, GF40_PROT_CFG_PROTECT_RATE, 0x4084); + rt2x00_set_field32(®, GF40_PROT_CFG_PROTECT_CTRL, 0); + rt2x00_set_field32(®, GF40_PROT_CFG_PROTECT_NAV, 1); + rt2x00_set_field32(®, GF40_PROT_CFG_TX_OP_ALLOW_CCK, 1); + rt2x00_set_field32(®, GF40_PROT_CFG_TX_OP_ALLOW_OFDM, 1); + rt2x00_set_field32(®, GF40_PROT_CFG_TX_OP_ALLOW_MM20, 1); + rt2x00_set_field32(®, GF40_PROT_CFG_TX_OP_ALLOW_MM40, 1); + rt2x00_set_field32(®, GF40_PROT_CFG_TX_OP_ALLOW_GF20, 1); + rt2x00_set_field32(®, GF40_PROT_CFG_TX_OP_ALLOW_GF40, 1); + rt2800_register_write(rt2x00dev, GF40_PROT_CFG, reg); + + if (rt2x00_intf_is_usb(rt2x00dev)) { + rt2800_register_write(rt2x00dev, PBF_CFG, 0xf40006); + + rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); + rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_DMA_BUSY, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_RX_DMA_BUSY, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_WP_DMA_BURST_SIZE, 3); + rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_BIG_ENDIAN, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_RX_HDR_SCATTER, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_HDR_SEG_LEN, 0); + rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); + } + + rt2800_register_write(rt2x00dev, TXOP_CTRL_CFG, 0x0000583f); + rt2800_register_write(rt2x00dev, TXOP_HLDR_ET, 0x00000002); + + rt2800_register_read(rt2x00dev, TX_RTS_CFG, ®); + rt2x00_set_field32(®, TX_RTS_CFG_AUTO_RTS_RETRY_LIMIT, 32); + rt2x00_set_field32(®, TX_RTS_CFG_RTS_THRES, + IEEE80211_MAX_RTS_THRESHOLD); + rt2x00_set_field32(®, TX_RTS_CFG_RTS_FBK_EN, 0); + rt2800_register_write(rt2x00dev, TX_RTS_CFG, reg); + + rt2800_register_write(rt2x00dev, EXP_ACK_TIME, 0x002400ca); + rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003); + + /* + * ASIC will keep garbage value after boot, clear encryption keys. + */ + for (i = 0; i < 4; i++) + rt2800_register_write(rt2x00dev, + SHARED_KEY_MODE_ENTRY(i), 0); + + for (i = 0; i < 256; i++) { + u32 wcid[2] = { 0xffffffff, 0x00ffffff }; + rt2800_register_multiwrite(rt2x00dev, MAC_WCID_ENTRY(i), + wcid, sizeof(wcid)); + + rt2800_register_write(rt2x00dev, MAC_WCID_ATTR_ENTRY(i), 1); + rt2800_register_write(rt2x00dev, MAC_IVEIV_ENTRY(i), 0); + } + + /* + * Clear all beacons + * For the Beacon base registers we only need to clear + * the first byte since that byte contains the VALID and OWNER + * bits which (when set to 0) will invalidate the entire beacon. + */ + rt2800_register_write(rt2x00dev, HW_BEACON_BASE0, 0); + rt2800_register_write(rt2x00dev, HW_BEACON_BASE1, 0); + rt2800_register_write(rt2x00dev, HW_BEACON_BASE2, 0); + rt2800_register_write(rt2x00dev, HW_BEACON_BASE3, 0); + rt2800_register_write(rt2x00dev, HW_BEACON_BASE4, 0); + rt2800_register_write(rt2x00dev, HW_BEACON_BASE5, 0); + rt2800_register_write(rt2x00dev, HW_BEACON_BASE6, 0); + rt2800_register_write(rt2x00dev, HW_BEACON_BASE7, 0); + + if (rt2x00_intf_is_usb(rt2x00dev)) { + rt2800_register_read(rt2x00dev, USB_CYC_CFG, ®); + rt2x00_set_field32(®, USB_CYC_CFG_CLOCK_CYCLE, 30); + rt2800_register_write(rt2x00dev, USB_CYC_CFG, reg); + } + + rt2800_register_read(rt2x00dev, HT_FBK_CFG0, ®); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS0FBK, 0); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS1FBK, 0); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS2FBK, 1); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS3FBK, 2); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS4FBK, 3); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS5FBK, 4); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS6FBK, 5); + rt2x00_set_field32(®, HT_FBK_CFG0_HTMCS7FBK, 6); + rt2800_register_write(rt2x00dev, HT_FBK_CFG0, reg); + + rt2800_register_read(rt2x00dev, HT_FBK_CFG1, ®); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS8FBK, 8); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS9FBK, 8); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS10FBK, 9); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS11FBK, 10); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS12FBK, 11); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS13FBK, 12); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS14FBK, 13); + rt2x00_set_field32(®, HT_FBK_CFG1_HTMCS15FBK, 14); + rt2800_register_write(rt2x00dev, HT_FBK_CFG1, reg); + + rt2800_register_read(rt2x00dev, LG_FBK_CFG0, ®); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS0FBK, 8); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS1FBK, 8); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS2FBK, 9); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS3FBK, 10); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS4FBK, 11); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS5FBK, 12); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS6FBK, 13); + rt2x00_set_field32(®, LG_FBK_CFG0_OFDMMCS7FBK, 14); + rt2800_register_write(rt2x00dev, LG_FBK_CFG0, reg); + + rt2800_register_read(rt2x00dev, LG_FBK_CFG1, ®); + rt2x00_set_field32(®, LG_FBK_CFG0_CCKMCS0FBK, 0); + rt2x00_set_field32(®, LG_FBK_CFG0_CCKMCS1FBK, 0); + rt2x00_set_field32(®, LG_FBK_CFG0_CCKMCS2FBK, 1); + rt2x00_set_field32(®, LG_FBK_CFG0_CCKMCS3FBK, 2); + rt2800_register_write(rt2x00dev, LG_FBK_CFG1, reg); + + /* + * We must clear the error counters. + * These registers are cleared on read, + * so we may pass a useless variable to store the value. + */ + rt2800_register_read(rt2x00dev, RX_STA_CNT0, ®); + rt2800_register_read(rt2x00dev, RX_STA_CNT1, ®); + rt2800_register_read(rt2x00dev, RX_STA_CNT2, ®); + rt2800_register_read(rt2x00dev, TX_STA_CNT0, ®); + rt2800_register_read(rt2x00dev, TX_STA_CNT1, ®); + rt2800_register_read(rt2x00dev, TX_STA_CNT2, ®); + + return 0; +} +EXPORT_SYMBOL_GPL(rt2800_init_registers); + +static int rt2800_wait_bbp_rf_ready(struct rt2x00_dev *rt2x00dev) +{ + unsigned int i; + u32 reg; + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2800_register_read(rt2x00dev, MAC_STATUS_CFG, ®); + if (!rt2x00_get_field32(reg, MAC_STATUS_CFG_BBP_RF_BUSY)) + return 0; + + udelay(REGISTER_BUSY_DELAY); + } + + ERROR(rt2x00dev, "BBP/RF register access failed, aborting.\n"); + return -EACCES; +} + +static int rt2800_wait_bbp_ready(struct rt2x00_dev *rt2x00dev) +{ + unsigned int i; + u8 value; + + /* + * BBP was enabled after firmware was loaded, + * but we need to reactivate it now. + */ + rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0); + rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0); + msleep(1); + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2800_bbp_read(rt2x00dev, 0, &value); + if ((value != 0xff) && (value != 0x00)) + return 0; + udelay(REGISTER_BUSY_DELAY); + } + + ERROR(rt2x00dev, "BBP register access failed, aborting.\n"); + return -EACCES; +} + +int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev) +{ + unsigned int i; + u16 eeprom; + u8 reg_id; + u8 value; + + if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev) || + rt2800_wait_bbp_ready(rt2x00dev))) + return -EACCES; + + rt2800_bbp_write(rt2x00dev, 65, 0x2c); + rt2800_bbp_write(rt2x00dev, 66, 0x38); + rt2800_bbp_write(rt2x00dev, 69, 0x12); + rt2800_bbp_write(rt2x00dev, 70, 0x0a); + rt2800_bbp_write(rt2x00dev, 73, 0x10); + rt2800_bbp_write(rt2x00dev, 81, 0x37); + rt2800_bbp_write(rt2x00dev, 82, 0x62); + rt2800_bbp_write(rt2x00dev, 83, 0x6a); + rt2800_bbp_write(rt2x00dev, 84, 0x99); + rt2800_bbp_write(rt2x00dev, 86, 0x00); + rt2800_bbp_write(rt2x00dev, 91, 0x04); + rt2800_bbp_write(rt2x00dev, 92, 0x00); + rt2800_bbp_write(rt2x00dev, 103, 0x00); + rt2800_bbp_write(rt2x00dev, 105, 0x05); + + if (rt2x00_rev(&rt2x00dev->chip) == RT2860C_VERSION) { + rt2800_bbp_write(rt2x00dev, 69, 0x16); + rt2800_bbp_write(rt2x00dev, 73, 0x12); + } + + if (rt2x00_rev(&rt2x00dev->chip) > RT2860D_VERSION) + rt2800_bbp_write(rt2x00dev, 84, 0x19); + + if (rt2x00_intf_is_usb(rt2x00dev) && + rt2x00_rev(&rt2x00dev->chip) == RT3070_VERSION) { + rt2800_bbp_write(rt2x00dev, 70, 0x0a); + rt2800_bbp_write(rt2x00dev, 84, 0x99); + rt2800_bbp_write(rt2x00dev, 105, 0x05); + } + + if (rt2x00_intf_is_pci(rt2x00dev) && + rt2x00_rt(&rt2x00dev->chip, RT3052)) { + rt2800_bbp_write(rt2x00dev, 31, 0x08); + rt2800_bbp_write(rt2x00dev, 78, 0x0e); + rt2800_bbp_write(rt2x00dev, 80, 0x08); + } + + 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); + rt2800_bbp_write(rt2x00dev, reg_id, value); + } + } + + return 0; +} +EXPORT_SYMBOL_GPL(rt2800_init_bbp); + +static u8 rt2800_init_rx_filter(struct rt2x00_dev *rt2x00dev, + bool bw40, u8 rfcsr24, u8 filter_target) +{ + unsigned int i; + u8 bbp; + u8 rfcsr; + u8 passband; + u8 stopband; + u8 overtuned = 0; + + rt2800_rfcsr_write(rt2x00dev, 24, rfcsr24); + + rt2800_bbp_read(rt2x00dev, 4, &bbp); + rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * bw40); + rt2800_bbp_write(rt2x00dev, 4, bbp); + + rt2800_rfcsr_read(rt2x00dev, 22, &rfcsr); + rt2x00_set_field8(&rfcsr, RFCSR22_BASEBAND_LOOPBACK, 1); + rt2800_rfcsr_write(rt2x00dev, 22, rfcsr); + + /* + * Set power & frequency of passband test tone + */ + rt2800_bbp_write(rt2x00dev, 24, 0); + + for (i = 0; i < 100; i++) { + rt2800_bbp_write(rt2x00dev, 25, 0x90); + msleep(1); + + rt2800_bbp_read(rt2x00dev, 55, &passband); + if (passband) + break; + } + + /* + * Set power & frequency of stopband test tone + */ + rt2800_bbp_write(rt2x00dev, 24, 0x06); + + for (i = 0; i < 100; i++) { + rt2800_bbp_write(rt2x00dev, 25, 0x90); + msleep(1); + + rt2800_bbp_read(rt2x00dev, 55, &stopband); + + if ((passband - stopband) <= filter_target) { + rfcsr24++; + overtuned += ((passband - stopband) == filter_target); + } else + break; + + rt2800_rfcsr_write(rt2x00dev, 24, rfcsr24); + } + + rfcsr24 -= !!overtuned; + + rt2800_rfcsr_write(rt2x00dev, 24, rfcsr24); + return rfcsr24; +} + +int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev) +{ + u8 rfcsr; + u8 bbp; + + if (rt2x00_intf_is_usb(rt2x00dev) && + rt2x00_rev(&rt2x00dev->chip) != RT3070_VERSION) + return 0; + + if (rt2x00_intf_is_pci(rt2x00dev)) { + if (!rt2x00_rf(&rt2x00dev->chip, RF3020) && + !rt2x00_rf(&rt2x00dev->chip, RF3021) && + !rt2x00_rf(&rt2x00dev->chip, RF3022)) + return 0; + } + + /* + * Init RF calibration. + */ + rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr); + rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 1); + rt2800_rfcsr_write(rt2x00dev, 30, rfcsr); + msleep(1); + rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 0); + rt2800_rfcsr_write(rt2x00dev, 30, rfcsr); + + if (rt2x00_intf_is_usb(rt2x00dev)) { + rt2800_rfcsr_write(rt2x00dev, 4, 0x40); + rt2800_rfcsr_write(rt2x00dev, 5, 0x03); + rt2800_rfcsr_write(rt2x00dev, 6, 0x02); + rt2800_rfcsr_write(rt2x00dev, 7, 0x70); + rt2800_rfcsr_write(rt2x00dev, 9, 0x0f); + rt2800_rfcsr_write(rt2x00dev, 10, 0x71); + rt2800_rfcsr_write(rt2x00dev, 11, 0x21); + rt2800_rfcsr_write(rt2x00dev, 12, 0x7b); + rt2800_rfcsr_write(rt2x00dev, 14, 0x90); + rt2800_rfcsr_write(rt2x00dev, 15, 0x58); + rt2800_rfcsr_write(rt2x00dev, 16, 0xb3); + rt2800_rfcsr_write(rt2x00dev, 17, 0x92); + rt2800_rfcsr_write(rt2x00dev, 18, 0x2c); + rt2800_rfcsr_write(rt2x00dev, 19, 0x02); + rt2800_rfcsr_write(rt2x00dev, 20, 0xba); + rt2800_rfcsr_write(rt2x00dev, 21, 0xdb); + rt2800_rfcsr_write(rt2x00dev, 24, 0x16); + rt2800_rfcsr_write(rt2x00dev, 25, 0x01); + rt2800_rfcsr_write(rt2x00dev, 27, 0x03); + rt2800_rfcsr_write(rt2x00dev, 29, 0x1f); + } else if (rt2x00_intf_is_pci(rt2x00dev)) { + rt2800_rfcsr_write(rt2x00dev, 0, 0x50); + rt2800_rfcsr_write(rt2x00dev, 1, 0x01); + rt2800_rfcsr_write(rt2x00dev, 2, 0xf7); + rt2800_rfcsr_write(rt2x00dev, 3, 0x75); + rt2800_rfcsr_write(rt2x00dev, 4, 0x40); + rt2800_rfcsr_write(rt2x00dev, 5, 0x03); + rt2800_rfcsr_write(rt2x00dev, 6, 0x02); + rt2800_rfcsr_write(rt2x00dev, 7, 0x50); + rt2800_rfcsr_write(rt2x00dev, 8, 0x39); + rt2800_rfcsr_write(rt2x00dev, 9, 0x0f); + rt2800_rfcsr_write(rt2x00dev, 10, 0x60); + rt2800_rfcsr_write(rt2x00dev, 11, 0x21); + rt2800_rfcsr_write(rt2x00dev, 12, 0x75); + rt2800_rfcsr_write(rt2x00dev, 13, 0x75); + rt2800_rfcsr_write(rt2x00dev, 14, 0x90); + rt2800_rfcsr_write(rt2x00dev, 15, 0x58); + rt2800_rfcsr_write(rt2x00dev, 16, 0xb3); + rt2800_rfcsr_write(rt2x00dev, 17, 0x92); + rt2800_rfcsr_write(rt2x00dev, 18, 0x2c); + rt2800_rfcsr_write(rt2x00dev, 19, 0x02); + rt2800_rfcsr_write(rt2x00dev, 20, 0xba); + rt2800_rfcsr_write(rt2x00dev, 21, 0xdb); + rt2800_rfcsr_write(rt2x00dev, 22, 0x00); + rt2800_rfcsr_write(rt2x00dev, 23, 0x31); + rt2800_rfcsr_write(rt2x00dev, 24, 0x08); + rt2800_rfcsr_write(rt2x00dev, 25, 0x01); + rt2800_rfcsr_write(rt2x00dev, 26, 0x25); + rt2800_rfcsr_write(rt2x00dev, 27, 0x23); + rt2800_rfcsr_write(rt2x00dev, 28, 0x13); + rt2800_rfcsr_write(rt2x00dev, 29, 0x83); + } + + /* + * Set RX Filter calibration for 20MHz and 40MHz + */ + rt2x00dev->calibration[0] = + rt2800_init_rx_filter(rt2x00dev, false, 0x07, 0x16); + rt2x00dev->calibration[1] = + rt2800_init_rx_filter(rt2x00dev, true, 0x27, 0x19); + + /* + * Set back to initial state + */ + rt2800_bbp_write(rt2x00dev, 24, 0); + + rt2800_rfcsr_read(rt2x00dev, 22, &rfcsr); + rt2x00_set_field8(&rfcsr, RFCSR22_BASEBAND_LOOPBACK, 0); + rt2800_rfcsr_write(rt2x00dev, 22, rfcsr); + + /* + * set BBP back to BW20 + */ + rt2800_bbp_read(rt2x00dev, 4, &bbp); + rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 0); + rt2800_bbp_write(rt2x00dev, 4, bbp); + + return 0; +} +EXPORT_SYMBOL_GPL(rt2800_init_rfcsr); + +/* + * IEEE80211 stack callback functions. + */ +static void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx, + u32 *iv32, u16 *iv16) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + struct mac_iveiv_entry iveiv_entry; + u32 offset; + + offset = MAC_IVEIV_ENTRY(hw_key_idx); + rt2800_register_multiread(rt2x00dev, offset, + &iveiv_entry, sizeof(iveiv_entry)); + + memcpy(&iveiv_entry.iv[0], iv16, sizeof(iv16)); + memcpy(&iveiv_entry.iv[4], iv32, sizeof(iv32)); +} + +static int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + u32 reg; + bool enabled = (value < IEEE80211_MAX_RTS_THRESHOLD); + + rt2800_register_read(rt2x00dev, TX_RTS_CFG, ®); + rt2x00_set_field32(®, TX_RTS_CFG_RTS_THRES, value); + rt2800_register_write(rt2x00dev, TX_RTS_CFG, reg); + + rt2800_register_read(rt2x00dev, CCK_PROT_CFG, ®); + rt2x00_set_field32(®, CCK_PROT_CFG_RTS_TH_EN, enabled); + rt2800_register_write(rt2x00dev, CCK_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, OFDM_PROT_CFG, ®); + rt2x00_set_field32(®, OFDM_PROT_CFG_RTS_TH_EN, enabled); + rt2800_register_write(rt2x00dev, OFDM_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, MM20_PROT_CFG, ®); + rt2x00_set_field32(®, MM20_PROT_CFG_RTS_TH_EN, enabled); + rt2800_register_write(rt2x00dev, MM20_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, MM40_PROT_CFG, ®); + rt2x00_set_field32(®, MM40_PROT_CFG_RTS_TH_EN, enabled); + rt2800_register_write(rt2x00dev, MM40_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, GF20_PROT_CFG, ®); + rt2x00_set_field32(®, GF20_PROT_CFG_RTS_TH_EN, enabled); + rt2800_register_write(rt2x00dev, GF20_PROT_CFG, reg); + + rt2800_register_read(rt2x00dev, GF40_PROT_CFG, ®); + rt2x00_set_field32(®, GF40_PROT_CFG_RTS_TH_EN, enabled); + rt2800_register_write(rt2x00dev, GF40_PROT_CFG, reg); + + return 0; +} + +static int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx, + const struct ieee80211_tx_queue_params *params) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + struct data_queue *queue; + struct rt2x00_field32 field; + int retval; + u32 reg; + u32 offset; + + /* + * First pass the configuration through rt2x00lib, that will + * update the queue settings and validate the input. After that + * we are free to update the registers based on the value + * in the queue parameter. + */ + retval = rt2x00mac_conf_tx(hw, queue_idx, params); + if (retval) + return retval; + + /* + * We only need to perform additional register initialization + * for WMM queues/ + */ + if (queue_idx >= 4) + return 0; + + queue = rt2x00queue_get_queue(rt2x00dev, queue_idx); + + /* Update WMM TXOP register */ + offset = WMM_TXOP0_CFG + (sizeof(u32) * (!!(queue_idx & 2))); + field.bit_offset = (queue_idx & 1) * 16; + field.bit_mask = 0xffff << field.bit_offset; + + rt2800_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, field, queue->txop); + rt2800_register_write(rt2x00dev, offset, reg); + + /* Update WMM registers */ + field.bit_offset = queue_idx * 4; + field.bit_mask = 0xf << field.bit_offset; + + rt2800_register_read(rt2x00dev, WMM_AIFSN_CFG, ®); + rt2x00_set_field32(®, field, queue->aifs); + rt2800_register_write(rt2x00dev, WMM_AIFSN_CFG, reg); + + rt2800_register_read(rt2x00dev, WMM_CWMIN_CFG, ®); + rt2x00_set_field32(®, field, queue->cw_min); + rt2800_register_write(rt2x00dev, WMM_CWMIN_CFG, reg); + + rt2800_register_read(rt2x00dev, WMM_CWMAX_CFG, ®); + rt2x00_set_field32(®, field, queue->cw_max); + rt2800_register_write(rt2x00dev, WMM_CWMAX_CFG, reg); + + /* Update EDCA registers */ + offset = EDCA_AC0_CFG + (sizeof(u32) * queue_idx); + + rt2800_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, EDCA_AC0_CFG_TX_OP, queue->txop); + rt2x00_set_field32(®, EDCA_AC0_CFG_AIFSN, queue->aifs); + rt2x00_set_field32(®, EDCA_AC0_CFG_CWMIN, queue->cw_min); + rt2x00_set_field32(®, EDCA_AC0_CFG_CWMAX, queue->cw_max); + rt2800_register_write(rt2x00dev, offset, reg); + + return 0; +} + +static u64 rt2800_get_tsf(struct ieee80211_hw *hw) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + u64 tsf; + u32 reg; + + rt2800_register_read(rt2x00dev, TSF_TIMER_DW1, ®); + tsf = (u64) rt2x00_get_field32(reg, TSF_TIMER_DW1_HIGH_WORD) << 32; + rt2800_register_read(rt2x00dev, TSF_TIMER_DW0, ®); + tsf |= rt2x00_get_field32(reg, TSF_TIMER_DW0_LOW_WORD); + + return tsf; +} + +const struct ieee80211_ops rt2800_mac80211_ops = { + .tx = rt2x00mac_tx, + .start = rt2x00mac_start, + .stop = rt2x00mac_stop, + .add_interface = rt2x00mac_add_interface, + .remove_interface = rt2x00mac_remove_interface, + .config = rt2x00mac_config, + .configure_filter = rt2x00mac_configure_filter, + .set_tim = rt2x00mac_set_tim, + .set_key = rt2x00mac_set_key, + .get_stats = rt2x00mac_get_stats, + .get_tkip_seq = rt2800_get_tkip_seq, + .set_rts_threshold = rt2800_set_rts_threshold, + .bss_info_changed = rt2x00mac_bss_info_changed, + .conf_tx = rt2800_conf_tx, + .get_tx_stats = rt2x00mac_get_tx_stats, + .get_tsf = rt2800_get_tsf, + .rfkill_poll = rt2x00mac_rfkill_poll, +}; +EXPORT_SYMBOL_GPL(rt2800_mac80211_ops); |