diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/eeprom.c | 139 |
1 files changed, 69 insertions, 70 deletions
diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c index 39722dd73e4..80e625608ba 100644 --- a/drivers/net/wireless/ath/ath5k/eeprom.c +++ b/drivers/net/wireless/ath/ath5k/eeprom.c @@ -28,45 +28,16 @@ #include "debug.h" #include "base.h" -/* - * Read from eeprom - */ -static int ath5k_hw_eeprom_read(struct ath5k_hw *ah, u32 offset, u16 *data) -{ - u32 status, timeout; - - /* - * Initialize EEPROM access - */ - if (ah->ah_version == AR5K_AR5210) { - AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_EEAE); - (void)ath5k_hw_reg_read(ah, AR5K_EEPROM_BASE + (4 * offset)); - } else { - ath5k_hw_reg_write(ah, offset, AR5K_EEPROM_BASE); - AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD, - AR5K_EEPROM_CMD_READ); - } - - for (timeout = AR5K_TUNE_REGISTER_TIMEOUT; timeout > 0; timeout--) { - status = ath5k_hw_reg_read(ah, AR5K_EEPROM_STATUS); - if (status & AR5K_EEPROM_STAT_RDDONE) { - if (status & AR5K_EEPROM_STAT_RDERR) - return -EIO; - *data = (u16)(ath5k_hw_reg_read(ah, AR5K_EEPROM_DATA) & - 0xffff); - return 0; - } - udelay(15); - } - return -ETIMEDOUT; -} +/******************\ +* Helper functions * +\******************/ /* * Translate binary channel representation in EEPROM to frequency */ static u16 ath5k_eeprom_bin2freq(struct ath5k_eeprom_info *ee, u16 bin, - unsigned int mode) + unsigned int mode) { u16 val; @@ -89,6 +60,11 @@ static u16 ath5k_eeprom_bin2freq(struct ath5k_eeprom_info *ee, u16 bin, return val; } + +/*********\ +* Parsers * +\*********/ + /* * Initialize eeprom & capabilities structs */ @@ -198,7 +174,7 @@ ath5k_eeprom_init_header(struct ath5k_hw *ah) * * XXX: Serdes values seem to be fixed so * no need to read them here, we write them - * during ath5k_hw_attach */ + * during ath5k_hw_init */ AR5K_EEPROM_READ(AR5K_EEPROM_PCIE_OFFSET, val); ee->ee_serdes = (val == AR5K_EEPROM_PCIE_SERDES_SECTION) ? true : false; @@ -647,6 +623,7 @@ ath5k_eeprom_init_11bg_2413(struct ath5k_hw *ah, unsigned int mode, int offset) return 0; } + /* * Read power calibration for RF5111 chips * @@ -1514,6 +1491,7 @@ ath5k_eeprom_read_target_rate_pwr_info(struct ath5k_hw *ah, unsigned int mode) return 0; } + /* * Read per channel calibration info from EEPROM * @@ -1607,15 +1585,6 @@ ath5k_eeprom_free_pcal_info(struct ath5k_hw *ah, int mode) return 0; } -void -ath5k_eeprom_detach(struct ath5k_hw *ah) -{ - u8 mode; - - for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; mode++) - ath5k_eeprom_free_pcal_info(ah, mode); -} - /* Read conformance test limits used for regulatory control */ static int ath5k_eeprom_read_ctl_info(struct ath5k_hw *ah) @@ -1757,6 +1726,44 @@ ath5k_eeprom_read_spur_chans(struct ath5k_hw *ah) } /* + * Read the MAC address from eeprom + */ +int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac) +{ + u8 mac_d[ETH_ALEN] = {}; + u32 total, offset; + u16 data; + int octet, ret; + + ret = ath5k_hw_nvram_read(ah, 0x20, &data); + if (ret) + return ret; + + for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) { + ret = ath5k_hw_nvram_read(ah, offset, &data); + if (ret) + return ret; + + total += data; + mac_d[octet + 1] = data & 0xff; + mac_d[octet] = data >> 8; + octet += 2; + } + + if (!total || total == 3 * 0xffff) + return -EINVAL; + + memcpy(mac, mac_d, ETH_ALEN); + + return 0; +} + + +/***********************\ +* Init/Detach functions * +\***********************/ + +/* * Initialize eeprom data structure */ int @@ -1787,35 +1794,27 @@ ath5k_eeprom_init(struct ath5k_hw *ah) return 0; } -/* - * Read the MAC address from eeprom - */ -int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac) +void +ath5k_eeprom_detach(struct ath5k_hw *ah) { - u8 mac_d[ETH_ALEN] = {}; - u32 total, offset; - u16 data; - int octet, ret; - - ret = ath5k_hw_eeprom_read(ah, 0x20, &data); - if (ret) - return ret; + u8 mode; - for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) { - ret = ath5k_hw_eeprom_read(ah, offset, &data); - if (ret) - return ret; + for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; mode++) + ath5k_eeprom_free_pcal_info(ah, mode); +} - total += data; - mac_d[octet + 1] = data & 0xff; - mac_d[octet] = data >> 8; - octet += 2; +int +ath5k_eeprom_mode_from_channel(struct ieee80211_channel *channel) +{ + switch (channel->hw_value & CHANNEL_MODES) { + case CHANNEL_A: + case CHANNEL_XR: + return AR5K_EEPROM_MODE_11A; + case CHANNEL_G: + return AR5K_EEPROM_MODE_11G; + case CHANNEL_B: + return AR5K_EEPROM_MODE_11B; + default: + return -1; } - - if (!total || total == 3 * 0xffff) - return -EINVAL; - - memcpy(mac, mac_d, ETH_ALEN); - - return 0; } |