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authorLuis R. Rodriguez <lrodriguez@atheros.com>2009-03-31 04:30:33 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-04-22 22:54:38 +0200
commit203c4805e91786f9a010bc7945a0fde70c9da28e (patch)
tree00415276b2fe65713f066ffe07b11ad2d8b6bea8 /drivers/net/wireless/ath5k/eeprom.c
parentMake ar9170 use common ath reg code (diff)
downloadlinux-203c4805e91786f9a010bc7945a0fde70c9da28e.tar.xz
linux-203c4805e91786f9a010bc7945a0fde70c9da28e.zip
atheros: put atheros wireless drivers into ath/
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath5k/eeprom.c')
-rw-r--r--drivers/net/wireless/ath5k/eeprom.c1769
1 files changed, 0 insertions, 1769 deletions
diff --git a/drivers/net/wireless/ath5k/eeprom.c b/drivers/net/wireless/ath5k/eeprom.c
deleted file mode 100644
index c0fb3b09ba45..000000000000
--- a/drivers/net/wireless/ath5k/eeprom.c
+++ /dev/null
@@ -1,1769 +0,0 @@
-/*
- * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
- * Copyright (c) 2006-2009 Nick Kossifidis <mickflemm@gmail.com>
- * Copyright (c) 2008-2009 Felix Fietkau <nbd@openwrt.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-
-/*************************************\
-* EEPROM access functions and helpers *
-\*************************************/
-
-#include "ath5k.h"
-#include "reg.h"
-#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;
-
- ATH5K_TRACE(ah->ah_sc);
- /*
- * 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;
-}
-
-/*
- * Translate binary channel representation in EEPROM to frequency
- */
-static u16 ath5k_eeprom_bin2freq(struct ath5k_eeprom_info *ee, u16 bin,
- unsigned int mode)
-{
- u16 val;
-
- if (bin == AR5K_EEPROM_CHANNEL_DIS)
- return bin;
-
- if (mode == AR5K_EEPROM_MODE_11A) {
- if (ee->ee_version > AR5K_EEPROM_VERSION_3_2)
- val = (5 * bin) + 4800;
- else
- val = bin > 62 ? (10 * 62) + (5 * (bin - 62)) + 5100 :
- (bin * 10) + 5100;
- } else {
- if (ee->ee_version > AR5K_EEPROM_VERSION_3_2)
- val = bin + 2300;
- else
- val = bin + 2400;
- }
-
- return val;
-}
-
-/*
- * Initialize eeprom & capabilities structs
- */
-static int
-ath5k_eeprom_init_header(struct ath5k_hw *ah)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- int ret;
- u16 val;
-
- /*
- * Read values from EEPROM and store them in the capability structure
- */
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MAGIC, ee_magic);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_PROTECT, ee_protect);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_REG_DOMAIN, ee_regdomain);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_VERSION, ee_version);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_HDR, ee_header);
-
- /* Return if we have an old EEPROM */
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_0)
- return 0;
-
-#ifdef notyet
- /*
- * Validate the checksum of the EEPROM date. There are some
- * devices with invalid EEPROMs.
- */
- for (cksum = 0, offset = 0; offset < AR5K_EEPROM_INFO_MAX; offset++) {
- AR5K_EEPROM_READ(AR5K_EEPROM_INFO(offset), val);
- cksum ^= val;
- }
- if (cksum != AR5K_EEPROM_INFO_CKSUM) {
- ATH5K_ERR(ah->ah_sc, "Invalid EEPROM checksum 0x%04x\n", cksum);
- return -EIO;
- }
-#endif
-
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_ANT_GAIN(ah->ah_ee_version),
- ee_ant_gain);
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) {
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC0, ee_misc0);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC1, ee_misc1);
-
- /* XXX: Don't know which versions include these two */
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC2, ee_misc2);
-
- if (ee->ee_version >= AR5K_EEPROM_VERSION_4_3)
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC3, ee_misc3);
-
- if (ee->ee_version >= AR5K_EEPROM_VERSION_5_0) {
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC4, ee_misc4);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC5, ee_misc5);
- AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC6, ee_misc6);
- }
- }
-
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_3) {
- AR5K_EEPROM_READ(AR5K_EEPROM_OBDB0_2GHZ, val);
- ee->ee_ob[AR5K_EEPROM_MODE_11B][0] = val & 0x7;
- ee->ee_db[AR5K_EEPROM_MODE_11B][0] = (val >> 3) & 0x7;
-
- AR5K_EEPROM_READ(AR5K_EEPROM_OBDB1_2GHZ, val);
- ee->ee_ob[AR5K_EEPROM_MODE_11G][0] = val & 0x7;
- ee->ee_db[AR5K_EEPROM_MODE_11G][0] = (val >> 3) & 0x7;
- }
-
- return 0;
-}
-
-
-/*
- * Read antenna infos from eeprom
- */
-static int ath5k_eeprom_read_ants(struct ath5k_hw *ah, u32 *offset,
- unsigned int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 o = *offset;
- u16 val;
- int ret, i = 0;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_switch_settling[mode] = (val >> 8) & 0x7f;
- ee->ee_atn_tx_rx[mode] = (val >> 2) & 0x3f;
- ee->ee_ant_control[mode][i] = (val << 4) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] |= (val >> 12) & 0xf;
- ee->ee_ant_control[mode][i++] = (val >> 6) & 0x3f;
- ee->ee_ant_control[mode][i++] = val & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] = (val >> 10) & 0x3f;
- ee->ee_ant_control[mode][i++] = (val >> 4) & 0x3f;
- ee->ee_ant_control[mode][i] = (val << 2) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] |= (val >> 14) & 0x3;
- ee->ee_ant_control[mode][i++] = (val >> 8) & 0x3f;
- ee->ee_ant_control[mode][i++] = (val >> 2) & 0x3f;
- ee->ee_ant_control[mode][i] = (val << 4) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ant_control[mode][i++] |= (val >> 12) & 0xf;
- ee->ee_ant_control[mode][i++] = (val >> 6) & 0x3f;
- ee->ee_ant_control[mode][i++] = val & 0x3f;
-
- /* Get antenna modes */
- ah->ah_antenna[mode][0] =
- (ee->ee_ant_control[mode][0] << 4);
- ah->ah_antenna[mode][AR5K_ANT_FIXED_A] =
- ee->ee_ant_control[mode][1] |
- (ee->ee_ant_control[mode][2] << 6) |
- (ee->ee_ant_control[mode][3] << 12) |
- (ee->ee_ant_control[mode][4] << 18) |
- (ee->ee_ant_control[mode][5] << 24);
- ah->ah_antenna[mode][AR5K_ANT_FIXED_B] =
- ee->ee_ant_control[mode][6] |
- (ee->ee_ant_control[mode][7] << 6) |
- (ee->ee_ant_control[mode][8] << 12) |
- (ee->ee_ant_control[mode][9] << 18) |
- (ee->ee_ant_control[mode][10] << 24);
-
- /* return new offset */
- *offset = o;
-
- return 0;
-}
-
-/*
- * Read supported modes and some mode-specific calibration data
- * from eeprom
- */
-static int ath5k_eeprom_read_modes(struct ath5k_hw *ah, u32 *offset,
- unsigned int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 o = *offset;
- u16 val;
- int ret;
-
- ee->ee_n_piers[mode] = 0;
- AR5K_EEPROM_READ(o++, val);
- ee->ee_adc_desired_size[mode] = (s8)((val >> 8) & 0xff);
- switch(mode) {
- case AR5K_EEPROM_MODE_11A:
- ee->ee_ob[mode][3] = (val >> 5) & 0x7;
- ee->ee_db[mode][3] = (val >> 2) & 0x7;
- ee->ee_ob[mode][2] = (val << 1) & 0x7;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_ob[mode][2] |= (val >> 15) & 0x1;
- ee->ee_db[mode][2] = (val >> 12) & 0x7;
- ee->ee_ob[mode][1] = (val >> 9) & 0x7;
- ee->ee_db[mode][1] = (val >> 6) & 0x7;
- ee->ee_ob[mode][0] = (val >> 3) & 0x7;
- ee->ee_db[mode][0] = val & 0x7;
- break;
- case AR5K_EEPROM_MODE_11G:
- case AR5K_EEPROM_MODE_11B:
- ee->ee_ob[mode][1] = (val >> 4) & 0x7;
- ee->ee_db[mode][1] = val & 0x7;
- break;
- }
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_tx_end2xlna_enable[mode] = (val >> 8) & 0xff;
- ee->ee_thr_62[mode] = val & 0xff;
-
- if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2)
- ee->ee_thr_62[mode] = mode == AR5K_EEPROM_MODE_11A ? 15 : 28;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_tx_end2xpa_disable[mode] = (val >> 8) & 0xff;
- ee->ee_tx_frm2xpa_enable[mode] = val & 0xff;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_pga_desired_size[mode] = (val >> 8) & 0xff;
-
- if ((val & 0xff) & 0x80)
- ee->ee_noise_floor_thr[mode] = -((((val & 0xff) ^ 0xff)) + 1);
- else
- ee->ee_noise_floor_thr[mode] = val & 0xff;
-
- if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2)
- ee->ee_noise_floor_thr[mode] =
- mode == AR5K_EEPROM_MODE_11A ? -54 : -1;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_xlna_gain[mode] = (val >> 5) & 0xff;
- ee->ee_x_gain[mode] = (val >> 1) & 0xf;
- ee->ee_xpd[mode] = val & 0x1;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0)
- ee->ee_fixed_bias[mode] = (val >> 13) & 0x1;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_3_3) {
- AR5K_EEPROM_READ(o++, val);
- ee->ee_false_detect[mode] = (val >> 6) & 0x7f;
-
- if (mode == AR5K_EEPROM_MODE_11A)
- ee->ee_xr_power[mode] = val & 0x3f;
- else {
- ee->ee_ob[mode][0] = val & 0x7;
- ee->ee_db[mode][0] = (val >> 3) & 0x7;
- }
- }
-
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_4) {
- ee->ee_i_gain[mode] = AR5K_EEPROM_I_GAIN;
- ee->ee_cck_ofdm_power_delta = AR5K_EEPROM_CCK_OFDM_DELTA;
- } else {
- ee->ee_i_gain[mode] = (val >> 13) & 0x7;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_i_gain[mode] |= (val << 3) & 0x38;
-
- if (mode == AR5K_EEPROM_MODE_11G) {
- ee->ee_cck_ofdm_power_delta = (val >> 3) & 0xff;
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_6)
- ee->ee_scaled_cck_delta = (val >> 11) & 0x1f;
- }
- }
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0 &&
- mode == AR5K_EEPROM_MODE_11A) {
- ee->ee_i_cal[mode] = (val >> 8) & 0x3f;
- ee->ee_q_cal[mode] = (val >> 3) & 0x1f;
- }
-
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_4_0)
- goto done;
-
- /* Note: >= v5 have bg freq piers on another location
- * so these freq piers are ignored for >= v5 (should be 0xff
- * anyway) */
- switch(mode) {
- case AR5K_EEPROM_MODE_11A:
- if (ah->ah_ee_version < AR5K_EEPROM_VERSION_4_1)
- break;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_margin_tx_rx[mode] = val & 0x3f;
- break;
- case AR5K_EEPROM_MODE_11B:
- AR5K_EEPROM_READ(o++, val);
-
- ee->ee_pwr_cal_b[0].freq =
- ath5k_eeprom_bin2freq(ee, val & 0xff, mode);
- if (ee->ee_pwr_cal_b[0].freq != AR5K_EEPROM_CHANNEL_DIS)
- ee->ee_n_piers[mode]++;
-
- ee->ee_pwr_cal_b[1].freq =
- ath5k_eeprom_bin2freq(ee, (val >> 8) & 0xff, mode);
- if (ee->ee_pwr_cal_b[1].freq != AR5K_EEPROM_CHANNEL_DIS)
- ee->ee_n_piers[mode]++;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_pwr_cal_b[2].freq =
- ath5k_eeprom_bin2freq(ee, val & 0xff, mode);
- if (ee->ee_pwr_cal_b[2].freq != AR5K_EEPROM_CHANNEL_DIS)
- ee->ee_n_piers[mode]++;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1)
- ee->ee_margin_tx_rx[mode] = (val >> 8) & 0x3f;
- break;
- case AR5K_EEPROM_MODE_11G:
- AR5K_EEPROM_READ(o++, val);
-
- ee->ee_pwr_cal_g[0].freq =
- ath5k_eeprom_bin2freq(ee, val & 0xff, mode);
- if (ee->ee_pwr_cal_g[0].freq != AR5K_EEPROM_CHANNEL_DIS)
- ee->ee_n_piers[mode]++;
-
- ee->ee_pwr_cal_g[1].freq =
- ath5k_eeprom_bin2freq(ee, (val >> 8) & 0xff, mode);
- if (ee->ee_pwr_cal_g[1].freq != AR5K_EEPROM_CHANNEL_DIS)
- ee->ee_n_piers[mode]++;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_turbo_max_power[mode] = val & 0x7f;
- ee->ee_xr_power[mode] = (val >> 7) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_pwr_cal_g[2].freq =
- ath5k_eeprom_bin2freq(ee, val & 0xff, mode);
- if (ee->ee_pwr_cal_g[2].freq != AR5K_EEPROM_CHANNEL_DIS)
- ee->ee_n_piers[mode]++;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1)
- ee->ee_margin_tx_rx[mode] = (val >> 8) & 0x3f;
-
- AR5K_EEPROM_READ(o++, val);
- ee->ee_i_cal[mode] = (val >> 8) & 0x3f;
- ee->ee_q_cal[mode] = (val >> 3) & 0x1f;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_2) {
- AR5K_EEPROM_READ(o++, val);
- ee->ee_cck_ofdm_gain_delta = val & 0xff;
- }
- break;
- }
-
-done:
- /* return new offset */
- *offset = o;
-
- return 0;
-}
-
-/*
- * Read turbo mode information on newer EEPROM versions
- */
-static int
-ath5k_eeprom_read_turbo_modes(struct ath5k_hw *ah,
- u32 *offset, unsigned int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 o = *offset;
- u16 val;
- int ret;
-
- if (ee->ee_version < AR5K_EEPROM_VERSION_5_0)
- return 0;
-
- switch (mode){
- case AR5K_EEPROM_MODE_11A:
- ee->ee_switch_settling_turbo[mode] = (val >> 6) & 0x7f;
-
- ee->ee_atn_tx_rx_turbo[mode] = (val >> 13) & 0x7;
- AR5K_EEPROM_READ(o++, val);
- ee->ee_atn_tx_rx_turbo[mode] |= (val & 0x7) << 3;
- ee->ee_margin_tx_rx_turbo[mode] = (val >> 3) & 0x3f;
-
- ee->ee_adc_desired_size_turbo[mode] = (val >> 9) & 0x7f;
- AR5K_EEPROM_READ(o++, val);
- ee->ee_adc_desired_size_turbo[mode] |= (val & 0x1) << 7;
- ee->ee_pga_desired_size_turbo[mode] = (val >> 1) & 0xff;
-
- if (AR5K_EEPROM_EEMAP(ee->ee_misc0) >=2)
- ee->ee_pd_gain_overlap = (val >> 9) & 0xf;
- break;
- case AR5K_EEPROM_MODE_11G:
- ee->ee_switch_settling_turbo[mode] = (val >> 8) & 0x7f;
-
- ee->ee_atn_tx_rx_turbo[mode] = (val >> 15) & 0x7;
- AR5K_EEPROM_READ(o++, val);
- ee->ee_atn_tx_rx_turbo[mode] |= (val & 0x1f) << 1;
- ee->ee_margin_tx_rx_turbo[mode] = (val >> 5) & 0x3f;
-
- ee->ee_adc_desired_size_turbo[mode] = (val >> 11) & 0x7f;
- AR5K_EEPROM_READ(o++, val);
- ee->ee_adc_desired_size_turbo[mode] |= (val & 0x7) << 5;
- ee->ee_pga_desired_size_turbo[mode] = (val >> 3) & 0xff;
- break;
- }
-
- /* return new offset */
- *offset = o;
-
- return 0;
-}
-
-/* Read mode-specific data (except power calibration data) */
-static int
-ath5k_eeprom_init_modes(struct ath5k_hw *ah)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 mode_offset[3];
- unsigned int mode;
- u32 offset;
- int ret;
-
- /*
- * Get values for all modes
- */
- mode_offset[AR5K_EEPROM_MODE_11A] = AR5K_EEPROM_MODES_11A(ah->ah_ee_version);
- mode_offset[AR5K_EEPROM_MODE_11B] = AR5K_EEPROM_MODES_11B(ah->ah_ee_version);
- mode_offset[AR5K_EEPROM_MODE_11G] = AR5K_EEPROM_MODES_11G(ah->ah_ee_version);
-
- ee->ee_turbo_max_power[AR5K_EEPROM_MODE_11A] =
- AR5K_EEPROM_HDR_T_5GHZ_DBM(ee->ee_header);
-
- for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; mode++) {
- offset = mode_offset[mode];
-
- ret = ath5k_eeprom_read_ants(ah, &offset, mode);
- if (ret)
- return ret;
-
- ret = ath5k_eeprom_read_modes(ah, &offset, mode);
- if (ret)
- return ret;
-
- ret = ath5k_eeprom_read_turbo_modes(ah, &offset, mode);
- if (ret)
- return ret;
- }
-
- /* override for older eeprom versions for better performance */
- if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2) {
- ee->ee_thr_62[AR5K_EEPROM_MODE_11A] = 15;
- ee->ee_thr_62[AR5K_EEPROM_MODE_11B] = 28;
- ee->ee_thr_62[AR5K_EEPROM_MODE_11G] = 28;
- }
-
- return 0;
-}
-
-/* Read the frequency piers for each mode (mostly used on newer eeproms with 0xff
- * frequency mask) */
-static inline int
-ath5k_eeprom_read_freq_list(struct ath5k_hw *ah, int *offset, int max,
- struct ath5k_chan_pcal_info *pc, unsigned int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- int o = *offset;
- int i = 0;
- u8 freq1, freq2;
- int ret;
- u16 val;
-
- ee->ee_n_piers[mode] = 0;
- while(i < max) {
- AR5K_EEPROM_READ(o++, val);
-
- freq1 = val & 0xff;
- if (!freq1)
- break;
-
- pc[i++].freq = ath5k_eeprom_bin2freq(ee,
- freq1, mode);
- ee->ee_n_piers[mode]++;
-
- freq2 = (val >> 8) & 0xff;
- if (!freq2)
- break;
-
- pc[i++].freq = ath5k_eeprom_bin2freq(ee,
- freq2, mode);
- ee->ee_n_piers[mode]++;
- }
-
- /* return new offset */
- *offset = o;
-
- return 0;
-}
-
-/* Read frequency piers for 802.11a */
-static int
-ath5k_eeprom_init_11a_pcal_freq(struct ath5k_hw *ah, int offset)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info *pcal = ee->ee_pwr_cal_a;
- int i, ret;
- u16 val;
- u8 mask;
-
- if (ee->ee_version >= AR5K_EEPROM_VERSION_3_3) {
- ath5k_eeprom_read_freq_list(ah, &offset,
- AR5K_EEPROM_N_5GHZ_CHAN, pcal,
- AR5K_EEPROM_MODE_11A);
- } else {
- mask = AR5K_EEPROM_FREQ_M(ah->ah_ee_version);
-
- AR5K_EEPROM_READ(offset++, val);
- pcal[0].freq = (val >> 9) & mask;
- pcal[1].freq = (val >> 2) & mask;
- pcal[2].freq = (val << 5) & mask;
-
- AR5K_EEPROM_READ(offset++, val);
- pcal[2].freq |= (val >> 11) & 0x1f;
- pcal[3].freq = (val >> 4) & mask;
- pcal[4].freq = (val << 3) & mask;
-
- AR5K_EEPROM_READ(offset++, val);
- pcal[4].freq |= (val >> 13) & 0x7;
- pcal[5].freq = (val >> 6) & mask;
- pcal[6].freq = (val << 1) & mask;
-
- AR5K_EEPROM_READ(offset++, val);
- pcal[6].freq |= (val >> 15) & 0x1;
- pcal[7].freq = (val >> 8) & mask;
- pcal[8].freq = (val >> 1) & mask;
- pcal[9].freq = (val << 6) & mask;
-
- AR5K_EEPROM_READ(offset++, val);
- pcal[9].freq |= (val >> 10) & 0x3f;
-
- /* Fixed number of piers */
- ee->ee_n_piers[AR5K_EEPROM_MODE_11A] = 10;
-
- for (i = 0; i < AR5K_EEPROM_N_5GHZ_CHAN; i++) {
- pcal[i].freq = ath5k_eeprom_bin2freq(ee,
- pcal[i].freq, AR5K_EEPROM_MODE_11A);
- }
- }
-
- return 0;
-}
-
-/* Read frequency piers for 802.11bg on eeprom versions >= 5 and eemap >= 2 */
-static inline int
-ath5k_eeprom_init_11bg_2413(struct ath5k_hw *ah, unsigned int mode, int offset)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info *pcal;
-
- switch(mode) {
- case AR5K_EEPROM_MODE_11B:
- pcal = ee->ee_pwr_cal_b;
- break;
- case AR5K_EEPROM_MODE_11G:
- pcal = ee->ee_pwr_cal_g;
- break;
- default:
- return -EINVAL;
- }
-
- ath5k_eeprom_read_freq_list(ah, &offset,
- AR5K_EEPROM_N_2GHZ_CHAN_2413, pcal,
- mode);
-
- return 0;
-}
-
-/*
- * Read power calibration for RF5111 chips
- *
- * For RF5111 we have an XPD -eXternal Power Detector- curve
- * for each calibrated channel. Each curve has 0,5dB Power steps
- * on x axis and PCDAC steps (offsets) on y axis and looks like an
- * exponential function. To recreate the curve we read 11 points
- * here and interpolate later.
- */
-
-/* Used to match PCDAC steps with power values on RF5111 chips
- * (eeprom versions < 4). For RF5111 we have 11 pre-defined PCDAC
- * steps that match with the power values we read from eeprom. On
- * older eeprom versions (< 3.2) these steps are equaly spaced at
- * 10% of the pcdac curve -until the curve reaches it's maximum-
- * (11 steps from 0 to 100%) but on newer eeprom versions (>= 3.2)
- * these 11 steps are spaced in a different way. This function returns
- * the pcdac steps based on eeprom version and curve min/max so that we
- * can have pcdac/pwr points.
- */
-static inline void
-ath5k_get_pcdac_intercepts(struct ath5k_hw *ah, u8 min, u8 max, u8 *vp)
-{
- const static u16 intercepts3[] =
- { 0, 5, 10, 20, 30, 50, 70, 85, 90, 95, 100 };
- const static u16 intercepts3_2[] =
- { 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 };
- const u16 *ip;
- int i;
-
- if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_3_2)
- ip = intercepts3_2;
- else
- ip = intercepts3;
-
- for (i = 0; i < ARRAY_SIZE(intercepts3); i++)
- vp[i] = (ip[i] * max + (100 - ip[i]) * min) / 100;
-}
-
-/* Convert RF5111 specific data to generic raw data
- * used by interpolation code */
-static int
-ath5k_eeprom_convert_pcal_info_5111(struct ath5k_hw *ah, int mode,
- struct ath5k_chan_pcal_info *chinfo)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info_rf5111 *pcinfo;
- struct ath5k_pdgain_info *pd;
- u8 pier, point, idx;
- u8 *pdgain_idx = ee->ee_pdc_to_idx[mode];
-
- /* Fill raw data for each calibration pier */
- for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) {
-
- pcinfo = &chinfo[pier].rf5111_info;
-
- /* Allocate pd_curves for this cal pier */
- chinfo[pier].pd_curves =
- kcalloc(AR5K_EEPROM_N_PD_CURVES,
- sizeof(struct ath5k_pdgain_info),
- GFP_KERNEL);
-
- if (!chinfo[pier].pd_curves)
- return -ENOMEM;
-
- /* Only one curve for RF5111
- * find out which one and place
- * in in pd_curves.
- * Note: ee_x_gain is reversed here */
- for (idx = 0; idx < AR5K_EEPROM_N_PD_CURVES; idx++) {
-
- if (!((ee->ee_x_gain[mode] >> idx) & 0x1)) {
- pdgain_idx[0] = idx;
- break;
- }
- }
-
- ee->ee_pd_gains[mode] = 1;
-
- pd = &chinfo[pier].pd_curves[idx];
-
- pd->pd_points = AR5K_EEPROM_N_PWR_POINTS_5111;
-
- /* Allocate pd points for this curve */
- pd->pd_step = kcalloc(AR5K_EEPROM_N_PWR_POINTS_5111,
- sizeof(u8), GFP_KERNEL);
- if (!pd->pd_step)
- return -ENOMEM;
-
- pd->pd_pwr = kcalloc(AR5K_EEPROM_N_PWR_POINTS_5111,
- sizeof(s16), GFP_KERNEL);
- if (!pd->pd_pwr)
- return -ENOMEM;
-
- /* Fill raw dataset
- * (convert power to 0.25dB units
- * for RF5112 combatibility) */
- for (point = 0; point < pd->pd_points; point++) {
-
- /* Absolute values */
- pd->pd_pwr[point] = 2 * pcinfo->pwr[point];
-
- /* Already sorted */
- pd->pd_step[point] = pcinfo->pcdac[point];
- }
-
- /* Set min/max pwr */
- chinfo[pier].min_pwr = pd->pd_pwr[0];
- chinfo[pier].max_pwr = pd->pd_pwr[10];
-
- }
-
- return 0;
-}
-
-/* Parse EEPROM data */
-static int
-ath5k_eeprom_read_pcal_info_5111(struct ath5k_hw *ah, int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info *pcal;
- int offset, ret;
- int i;
- u16 val;
-
- offset = AR5K_EEPROM_GROUPS_START(ee->ee_version);
- switch(mode) {
- case AR5K_EEPROM_MODE_11A:
- if (!AR5K_EEPROM_HDR_11A(ee->ee_header))
- return 0;
-
- ret = ath5k_eeprom_init_11a_pcal_freq(ah,
- offset + AR5K_EEPROM_GROUP1_OFFSET);
- if (ret < 0)
- return ret;
-
- offset += AR5K_EEPROM_GROUP2_OFFSET;
- pcal = ee->ee_pwr_cal_a;
- break;
- case AR5K_EEPROM_MODE_11B:
- if (!AR5K_EEPROM_HDR_11B(ee->ee_header) &&
- !AR5K_EEPROM_HDR_11G(ee->ee_header))
- return 0;
-
- pcal = ee->ee_pwr_cal_b;
- offset += AR5K_EEPROM_GROUP3_OFFSET;
-
- /* fixed piers */
- pcal[0].freq = 2412;
- pcal[1].freq = 2447;
- pcal[2].freq = 2484;
- ee->ee_n_piers[mode] = 3;
- break;
- case AR5K_EEPROM_MODE_11G:
- if (!AR5K_EEPROM_HDR_11G(ee->ee_header))
- return 0;
-
- pcal = ee->ee_pwr_cal_g;
- offset += AR5K_EEPROM_GROUP4_OFFSET;
-
- /* fixed piers */
- pcal[0].freq = 2312;
- pcal[1].freq = 2412;
- pcal[2].freq = 2484;
- ee->ee_n_piers[mode] = 3;
- break;
- default:
- return -EINVAL;
- }
-
- for (i = 0; i < ee->ee_n_piers[mode]; i++) {
- struct ath5k_chan_pcal_info_rf5111 *cdata =
- &pcal[i].rf5111_info;
-
- AR5K_EEPROM_READ(offset++, val);
- cdata->pcdac_max = ((val >> 10) & AR5K_EEPROM_PCDAC_M);
- cdata->pcdac_min = ((val >> 4) & AR5K_EEPROM_PCDAC_M);
- cdata->pwr[0] = ((val << 2) & AR5K_EEPROM_POWER_M);
-
- AR5K_EEPROM_READ(offset++, val);
- cdata->pwr[0] |= ((val >> 14) & 0x3);
- cdata->pwr[1] = ((val >> 8) & AR5K_EEPROM_POWER_M);
- cdata->pwr[2] = ((val >> 2) & AR5K_EEPROM_POWER_M);
- cdata->pwr[3] = ((val << 4) & AR5K_EEPROM_POWER_M);
-
- AR5K_EEPROM_READ(offset++, val);
- cdata->pwr[3] |= ((val >> 12) & 0xf);
- cdata->pwr[4] = ((val >> 6) & AR5K_EEPROM_POWER_M);
- cdata->pwr[5] = (val & AR5K_EEPROM_POWER_M);
-
- AR5K_EEPROM_READ(offset++, val);
- cdata->pwr[6] = ((val >> 10) & AR5K_EEPROM_POWER_M);
- cdata->pwr[7] = ((val >> 4) & AR5K_EEPROM_POWER_M);
- cdata->pwr[8] = ((val << 2) & AR5K_EEPROM_POWER_M);
-
- AR5K_EEPROM_READ(offset++, val);
- cdata->pwr[8] |= ((val >> 14) & 0x3);
- cdata->pwr[9] = ((val >> 8) & AR5K_EEPROM_POWER_M);
- cdata->pwr[10] = ((val >> 2) & AR5K_EEPROM_POWER_M);
-
- ath5k_get_pcdac_intercepts(ah, cdata->pcdac_min,
- cdata->pcdac_max, cdata->pcdac);
- }
-
- return ath5k_eeprom_convert_pcal_info_5111(ah, mode, pcal);
-}
-
-
-/*
- * Read power calibration for RF5112 chips
- *
- * For RF5112 we have 4 XPD -eXternal Power Detector- curves
- * for each calibrated channel on 0, -6, -12 and -18dbm but we only
- * use the higher (3) and the lower (0) curves. Each curve has 0.5dB
- * power steps on x axis and PCDAC steps on y axis and looks like a
- * linear function. To recreate the curve and pass the power values
- * on hw, we read 4 points for xpd 0 (lower gain -> max power)
- * and 3 points for xpd 3 (higher gain -> lower power) here and
- * interpolate later.
- *
- * Note: Many vendors just use xpd 0 so xpd 3 is zeroed.
- */
-
-/* Convert RF5112 specific data to generic raw data
- * used by interpolation code */
-static int
-ath5k_eeprom_convert_pcal_info_5112(struct ath5k_hw *ah, int mode,
- struct ath5k_chan_pcal_info *chinfo)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info_rf5112 *pcinfo;
- u8 *pdgain_idx = ee->ee_pdc_to_idx[mode];
- unsigned int pier, pdg, point;
-
- /* Fill raw data for each calibration pier */
- for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) {
-
- pcinfo = &chinfo[pier].rf5112_info;
-
- /* Allocate pd_curves for this cal pier */
- chinfo[pier].pd_curves =
- kcalloc(AR5K_EEPROM_N_PD_CURVES,
- sizeof(struct ath5k_pdgain_info),
- GFP_KERNEL);
-
- if (!chinfo[pier].pd_curves)
- return -ENOMEM;
-
- /* Fill pd_curves */
- for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
-
- u8 idx = pdgain_idx[pdg];
- struct ath5k_pdgain_info *pd =
- &chinfo[pier].pd_curves[idx];
-
- /* Lowest gain curve (max power) */
- if (pdg == 0) {
- /* One more point for better accuracy */
- pd->pd_points = AR5K_EEPROM_N_XPD0_POINTS;
-
- /* Allocate pd points for this curve */
- pd->pd_step = kcalloc(pd->pd_points,
- sizeof(u8), GFP_KERNEL);
-
- if (!pd->pd_step)
- return -ENOMEM;
-
- pd->pd_pwr = kcalloc(pd->pd_points,
- sizeof(s16), GFP_KERNEL);
-
- if (!pd->pd_pwr)
- return -ENOMEM;
-
-
- /* Fill raw dataset
- * (all power levels are in 0.25dB units) */
- pd->pd_step[0] = pcinfo->pcdac_x0[0];
- pd->pd_pwr[0] = pcinfo->pwr_x0[0];
-
- for (point = 1; point < pd->pd_points;
- point++) {
- /* Absolute values */
- pd->pd_pwr[point] =
- pcinfo->pwr_x0[point];
-
- /* Deltas */
- pd->pd_step[point] =
- pd->pd_step[point - 1] +
- pcinfo->pcdac_x0[point];
- }
-
- /* Set min power for this frequency */
- chinfo[pier].min_pwr = pd->pd_pwr[0];
-
- /* Highest gain curve (min power) */
- } else if (pdg == 1) {
-
- pd->pd_points = AR5K_EEPROM_N_XPD3_POINTS;
-
- /* Allocate pd points for this curve */
- pd->pd_step = kcalloc(pd->pd_points,
- sizeof(u8), GFP_KERNEL);
-
- if (!pd->pd_step)
- return -ENOMEM;
-
- pd->pd_pwr = kcalloc(pd->pd_points,
- sizeof(s16), GFP_KERNEL);
-
- if (!pd->pd_pwr)
- return -ENOMEM;
-
- /* Fill raw dataset
- * (all power levels are in 0.25dB units) */
- for (point = 0; point < pd->pd_points;
- point++) {
- /* Absolute values */
- pd->pd_pwr[point] =
- pcinfo->pwr_x3[point];
-
- /* Fixed points */
- pd->pd_step[point] =
- pcinfo->pcdac_x3[point];
- }
-
- /* Since we have a higher gain curve
- * override min power */
- chinfo[pier].min_pwr = pd->pd_pwr[0];
- }
- }
- }
-
- return 0;
-}
-
-/* Parse EEPROM data */
-static int
-ath5k_eeprom_read_pcal_info_5112(struct ath5k_hw *ah, int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info_rf5112 *chan_pcal_info;
- struct ath5k_chan_pcal_info *gen_chan_info;
- u8 *pdgain_idx = ee->ee_pdc_to_idx[mode];
- u32 offset;
- u8 i, c;
- u16 val;
- int ret;
- u8 pd_gains = 0;
-
- /* Count how many curves we have and
- * identify them (which one of the 4
- * available curves we have on each count).
- * Curves are stored from lower (x0) to
- * higher (x3) gain */
- for (i = 0; i < AR5K_EEPROM_N_PD_CURVES; i++) {
- /* ee_x_gain[mode] is x gain mask */
- if ((ee->ee_x_gain[mode] >> i) & 0x1)
- pdgain_idx[pd_gains++] = i;
- }
- ee->ee_pd_gains[mode] = pd_gains;
-
- if (pd_gains == 0 || pd_gains > 2)
- return -EINVAL;
-
- switch (mode) {
- case AR5K_EEPROM_MODE_11A:
- /*
- * Read 5GHz EEPROM channels
- */
- offset = AR5K_EEPROM_GROUPS_START(ee->ee_version);
- ath5k_eeprom_init_11a_pcal_freq(ah, offset);
-
- offset += AR5K_EEPROM_GROUP2_OFFSET;
- gen_chan_info = ee->ee_pwr_cal_a;
- break;
- case AR5K_EEPROM_MODE_11B:
- offset = AR5K_EEPROM_GROUPS_START(ee->ee_version);
- if (AR5K_EEPROM_HDR_11A(ee->ee_header))
- offset += AR5K_EEPROM_GROUP3_OFFSET;
-
- /* NB: frequency piers parsed during mode init */
- gen_chan_info = ee->ee_pwr_cal_b;
- break;
- case AR5K_EEPROM_MODE_11G:
- offset = AR5K_EEPROM_GROUPS_START(ee->ee_version);
- if (AR5K_EEPROM_HDR_11A(ee->ee_header))
- offset += AR5K_EEPROM_GROUP4_OFFSET;
- else if (AR5K_EEPROM_HDR_11B(ee->ee_header))
- offset += AR5K_EEPROM_GROUP2_OFFSET;
-
- /* NB: frequency piers parsed during mode init */
- gen_chan_info = ee->ee_pwr_cal_g;
- break;
- default:
- return -EINVAL;
- }
-
- for (i = 0; i < ee->ee_n_piers[mode]; i++) {
- chan_pcal_info = &gen_chan_info[i].rf5112_info;
-
- /* Power values in quarter dB
- * for the lower xpd gain curve
- * (0 dBm -> higher output power) */
- for (c = 0; c < AR5K_EEPROM_N_XPD0_POINTS; c++) {
- AR5K_EEPROM_READ(offset++, val);
- chan_pcal_info->pwr_x0[c] = (s8) (val & 0xff);
- chan_pcal_info->pwr_x0[++c] = (s8) ((val >> 8) & 0xff);
- }
-
- /* PCDAC steps
- * corresponding to the above power
- * measurements */
- AR5K_EEPROM_READ(offset++, val);
- chan_pcal_info->pcdac_x0[1] = (val & 0x1f);
- chan_pcal_info->pcdac_x0[2] = ((val >> 5) & 0x1f);
- chan_pcal_info->pcdac_x0[3] = ((val >> 10) & 0x1f);
-
- /* Power values in quarter dB
- * for the higher xpd gain curve
- * (18 dBm -> lower output power) */
- AR5K_EEPROM_READ(offset++, val);
- chan_pcal_info->pwr_x3[0] = (s8) (val & 0xff);
- chan_pcal_info->pwr_x3[1] = (s8) ((val >> 8) & 0xff);
-
- AR5K_EEPROM_READ(offset++, val);
- chan_pcal_info->pwr_x3[2] = (val & 0xff);
-
- /* PCDAC steps
- * corresponding to the above power
- * measurements (fixed) */
- chan_pcal_info->pcdac_x3[0] = 20;
- chan_pcal_info->pcdac_x3[1] = 35;
- chan_pcal_info->pcdac_x3[2] = 63;
-
- if (ee->ee_version >= AR5K_EEPROM_VERSION_4_3) {
- chan_pcal_info->pcdac_x0[0] = ((val >> 8) & 0x3f);
-
- /* Last xpd0 power level is also channel maximum */
- gen_chan_info[i].max_pwr = chan_pcal_info->pwr_x0[3];
- } else {
- chan_pcal_info->pcdac_x0[0] = 1;
- gen_chan_info[i].max_pwr = (s8) ((val >> 8) & 0xff);
- }
-
- }
-
- return ath5k_eeprom_convert_pcal_info_5112(ah, mode, gen_chan_info);
-}
-
-
-/*
- * Read power calibration for RF2413 chips
- *
- * For RF2413 we have a Power to PDDAC table (Power Detector)
- * instead of a PCDAC and 4 pd gain curves for each calibrated channel.
- * Each curve has power on x axis in 0.5 db steps and PDDADC steps on y
- * axis and looks like an exponential function like the RF5111 curve.
- *
- * To recreate the curves we read here the points and interpolate
- * later. Note that in most cases only 2 (higher and lower) curves are
- * used (like RF5112) but vendors have the oportunity to include all
- * 4 curves on eeprom. The final curve (higher power) has an extra
- * point for better accuracy like RF5112.
- */
-
-/* For RF2413 power calibration data doesn't start on a fixed location and
- * if a mode is not supported, it's section is missing -not zeroed-.
- * So we need to calculate the starting offset for each section by using
- * these two functions */
-
-/* Return the size of each section based on the mode and the number of pd
- * gains available (maximum 4). */
-static inline unsigned int
-ath5k_pdgains_size_2413(struct ath5k_eeprom_info *ee, unsigned int mode)
-{
- static const unsigned int pdgains_size[] = { 4, 6, 9, 12 };
- unsigned int sz;
-
- sz = pdgains_size[ee->ee_pd_gains[mode] - 1];
- sz *= ee->ee_n_piers[mode];
-
- return sz;
-}
-
-/* Return the starting offset for a section based on the modes supported
- * and each section's size. */
-static unsigned int
-ath5k_cal_data_offset_2413(struct ath5k_eeprom_info *ee, int mode)
-{
- u32 offset = AR5K_EEPROM_CAL_DATA_START(ee->ee_misc4);
-
- switch(mode) {
- case AR5K_EEPROM_MODE_11G:
- if (AR5K_EEPROM_HDR_11B(ee->ee_header))
- offset += ath5k_pdgains_size_2413(ee,
- AR5K_EEPROM_MODE_11B) +
- AR5K_EEPROM_N_2GHZ_CHAN_2413 / 2;
- /* fall through */
- case AR5K_EEPROM_MODE_11B:
- if (AR5K_EEPROM_HDR_11A(ee->ee_header))
- offset += ath5k_pdgains_size_2413(ee,
- AR5K_EEPROM_MODE_11A) +
- AR5K_EEPROM_N_5GHZ_CHAN / 2;
- /* fall through */
- case AR5K_EEPROM_MODE_11A:
- break;
- default:
- break;
- }
-
- return offset;
-}
-
-/* Convert RF2413 specific data to generic raw data
- * used by interpolation code */
-static int
-ath5k_eeprom_convert_pcal_info_2413(struct ath5k_hw *ah, int mode,
- struct ath5k_chan_pcal_info *chinfo)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info_rf2413 *pcinfo;
- u8 *pdgain_idx = ee->ee_pdc_to_idx[mode];
- unsigned int pier, pdg, point;
-
- /* Fill raw data for each calibration pier */
- for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) {
-
- pcinfo = &chinfo[pier].rf2413_info;
-
- /* Allocate pd_curves for this cal pier */
- chinfo[pier].pd_curves =
- kcalloc(AR5K_EEPROM_N_PD_CURVES,
- sizeof(struct ath5k_pdgain_info),
- GFP_KERNEL);
-
- if (!chinfo[pier].pd_curves)
- return -ENOMEM;
-
- /* Fill pd_curves */
- for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
-
- u8 idx = pdgain_idx[pdg];
- struct ath5k_pdgain_info *pd =
- &chinfo[pier].pd_curves[idx];
-
- /* One more point for the highest power
- * curve (lowest gain) */
- if (pdg == ee->ee_pd_gains[mode] - 1)
- pd->pd_points = AR5K_EEPROM_N_PD_POINTS;
- else
- pd->pd_points = AR5K_EEPROM_N_PD_POINTS - 1;
-
- /* Allocate pd points for this curve */
- pd->pd_step = kcalloc(pd->pd_points,
- sizeof(u8), GFP_KERNEL);
-
- if (!pd->pd_step)
- return -ENOMEM;
-
- pd->pd_pwr = kcalloc(pd->pd_points,
- sizeof(s16), GFP_KERNEL);
-
- if (!pd->pd_pwr)
- return -ENOMEM;
-
- /* Fill raw dataset
- * convert all pwr levels to
- * quarter dB for RF5112 combatibility */
- pd->pd_step[0] = pcinfo->pddac_i[pdg];
- pd->pd_pwr[0] = 4 * pcinfo->pwr_i[pdg];
-
- for (point = 1; point < pd->pd_points; point++) {
-
- pd->pd_pwr[point] = pd->pd_pwr[point - 1] +
- 2 * pcinfo->pwr[pdg][point - 1];
-
- pd->pd_step[point] = pd->pd_step[point - 1] +
- pcinfo->pddac[pdg][point - 1];
-
- }
-
- /* Highest gain curve -> min power */
- if (pdg == 0)
- chinfo[pier].min_pwr = pd->pd_pwr[0];
-
- /* Lowest gain curve -> max power */
- if (pdg == ee->ee_pd_gains[mode] - 1)
- chinfo[pier].max_pwr =
- pd->pd_pwr[pd->pd_points - 1];
- }
- }
-
- return 0;
-}
-
-/* Parse EEPROM data */
-static int
-ath5k_eeprom_read_pcal_info_2413(struct ath5k_hw *ah, int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info_rf2413 *pcinfo;
- struct ath5k_chan_pcal_info *chinfo;
- u8 *pdgain_idx = ee->ee_pdc_to_idx[mode];
- u32 offset;
- int idx, i, ret;
- u16 val;
- u8 pd_gains = 0;
-
- /* Count how many curves we have and
- * identify them (which one of the 4
- * available curves we have on each count).
- * Curves are stored from higher to
- * lower gain so we go backwards */
- for (idx = AR5K_EEPROM_N_PD_CURVES - 1; idx >= 0; idx--) {
- /* ee_x_gain[mode] is x gain mask */
- if ((ee->ee_x_gain[mode] >> idx) & 0x1)
- pdgain_idx[pd_gains++] = idx;
-
- }
- ee->ee_pd_gains[mode] = pd_gains;
-
- if (pd_gains == 0)
- return -EINVAL;
-
- offset = ath5k_cal_data_offset_2413(ee, mode);
- switch (mode) {
- case AR5K_EEPROM_MODE_11A:
- if (!AR5K_EEPROM_HDR_11A(ee->ee_header))
- return 0;
-
- ath5k_eeprom_init_11a_pcal_freq(ah, offset);
- offset += AR5K_EEPROM_N_5GHZ_CHAN / 2;
- chinfo = ee->ee_pwr_cal_a;
- break;
- case AR5K_EEPROM_MODE_11B:
- if (!AR5K_EEPROM_HDR_11B(ee->ee_header))
- return 0;
-
- ath5k_eeprom_init_11bg_2413(ah, mode, offset);
- offset += AR5K_EEPROM_N_2GHZ_CHAN_2413 / 2;
- chinfo = ee->ee_pwr_cal_b;
- break;
- case AR5K_EEPROM_MODE_11G:
- if (!AR5K_EEPROM_HDR_11G(ee->ee_header))
- return 0;
-
- ath5k_eeprom_init_11bg_2413(ah, mode, offset);
- offset += AR5K_EEPROM_N_2GHZ_CHAN_2413 / 2;
- chinfo = ee->ee_pwr_cal_g;
- break;
- default:
- return -EINVAL;
- }
-
- for (i = 0; i < ee->ee_n_piers[mode]; i++) {
- pcinfo = &chinfo[i].rf2413_info;
-
- /*
- * Read pwr_i, pddac_i and the first
- * 2 pd points (pwr, pddac)
- */
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pwr_i[0] = val & 0x1f;
- pcinfo->pddac_i[0] = (val >> 5) & 0x7f;
- pcinfo->pwr[0][0] = (val >> 12) & 0xf;
-
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pddac[0][0] = val & 0x3f;
- pcinfo->pwr[0][1] = (val >> 6) & 0xf;
- pcinfo->pddac[0][1] = (val >> 10) & 0x3f;
-
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pwr[0][2] = val & 0xf;
- pcinfo->pddac[0][2] = (val >> 4) & 0x3f;
-
- pcinfo->pwr[0][3] = 0;
- pcinfo->pddac[0][3] = 0;
-
- if (pd_gains > 1) {
- /*
- * Pd gain 0 is not the last pd gain
- * so it only has 2 pd points.
- * Continue wih pd gain 1.
- */
- pcinfo->pwr_i[1] = (val >> 10) & 0x1f;
-
- pcinfo->pddac_i[1] = (val >> 15) & 0x1;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pddac_i[1] |= (val & 0x3F) << 1;
-
- pcinfo->pwr[1][0] = (val >> 6) & 0xf;
- pcinfo->pddac[1][0] = (val >> 10) & 0x3f;
-
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pwr[1][1] = val & 0xf;
- pcinfo->pddac[1][1] = (val >> 4) & 0x3f;
- pcinfo->pwr[1][2] = (val >> 10) & 0xf;
-
- pcinfo->pddac[1][2] = (val >> 14) & 0x3;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pddac[1][2] |= (val & 0xF) << 2;
-
- pcinfo->pwr[1][3] = 0;
- pcinfo->pddac[1][3] = 0;
- } else if (pd_gains == 1) {
- /*
- * Pd gain 0 is the last one so
- * read the extra point.
- */
- pcinfo->pwr[0][3] = (val >> 10) & 0xf;
-
- pcinfo->pddac[0][3] = (val >> 14) & 0x3;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pddac[0][3] |= (val & 0xF) << 2;
- }
-
- /*
- * Proceed with the other pd_gains
- * as above.
- */
- if (pd_gains > 2) {
- pcinfo->pwr_i[2] = (val >> 4) & 0x1f;
- pcinfo->pddac_i[2] = (val >> 9) & 0x7f;
-
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pwr[2][0] = (val >> 0) & 0xf;
- pcinfo->pddac[2][0] = (val >> 4) & 0x3f;
- pcinfo->pwr[2][1] = (val >> 10) & 0xf;
-
- pcinfo->pddac[2][1] = (val >> 14) & 0x3;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pddac[2][1] |= (val & 0xF) << 2;
-
- pcinfo->pwr[2][2] = (val >> 4) & 0xf;
- pcinfo->pddac[2][2] = (val >> 8) & 0x3f;
-
- pcinfo->pwr[2][3] = 0;
- pcinfo->pddac[2][3] = 0;
- } else if (pd_gains == 2) {
- pcinfo->pwr[1][3] = (val >> 4) & 0xf;
- pcinfo->pddac[1][3] = (val >> 8) & 0x3f;
- }
-
- if (pd_gains > 3) {
- pcinfo->pwr_i[3] = (val >> 14) & 0x3;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pwr_i[3] |= ((val >> 0) & 0x7) << 2;
-
- pcinfo->pddac_i[3] = (val >> 3) & 0x7f;
- pcinfo->pwr[3][0] = (val >> 10) & 0xf;
- pcinfo->pddac[3][0] = (val >> 14) & 0x3;
-
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pddac[3][0] |= (val & 0xF) << 2;
- pcinfo->pwr[3][1] = (val >> 4) & 0xf;
- pcinfo->pddac[3][1] = (val >> 8) & 0x3f;
-
- pcinfo->pwr[3][2] = (val >> 14) & 0x3;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pwr[3][2] |= ((val >> 0) & 0x3) << 2;
-
- pcinfo->pddac[3][2] = (val >> 2) & 0x3f;
- pcinfo->pwr[3][3] = (val >> 8) & 0xf;
-
- pcinfo->pddac[3][3] = (val >> 12) & 0xF;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pddac[3][3] |= ((val >> 0) & 0x3) << 4;
- } else if (pd_gains == 3) {
- pcinfo->pwr[2][3] = (val >> 14) & 0x3;
- AR5K_EEPROM_READ(offset++, val);
- pcinfo->pwr[2][3] |= ((val >> 0) & 0x3) << 2;
-
- pcinfo->pddac[2][3] = (val >> 2) & 0x3f;
- }
- }
-
- return ath5k_eeprom_convert_pcal_info_2413(ah, mode, chinfo);
-}
-
-
-/*
- * Read per rate target power (this is the maximum tx power
- * supported by the card). This info is used when setting
- * tx power, no matter the channel.
- *
- * This also works for v5 EEPROMs.
- */
-static int
-ath5k_eeprom_read_target_rate_pwr_info(struct ath5k_hw *ah, unsigned int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_rate_pcal_info *rate_pcal_info;
- u8 *rate_target_pwr_num;
- u32 offset;
- u16 val;
- int ret, i;
-
- offset = AR5K_EEPROM_TARGET_PWRSTART(ee->ee_misc1);
- rate_target_pwr_num = &ee->ee_rate_target_pwr_num[mode];
- switch (mode) {
- case AR5K_EEPROM_MODE_11A:
- offset += AR5K_EEPROM_TARGET_PWR_OFF_11A(ee->ee_version);
- rate_pcal_info = ee->ee_rate_tpwr_a;
- ee->ee_rate_target_pwr_num[mode] = AR5K_EEPROM_N_5GHZ_CHAN;
- break;
- case AR5K_EEPROM_MODE_11B:
- offset += AR5K_EEPROM_TARGET_PWR_OFF_11B(ee->ee_version);
- rate_pcal_info = ee->ee_rate_tpwr_b;
- ee->ee_rate_target_pwr_num[mode] = 2; /* 3rd is g mode's 1st */
- break;
- case AR5K_EEPROM_MODE_11G:
- offset += AR5K_EEPROM_TARGET_PWR_OFF_11G(ee->ee_version);
- rate_pcal_info = ee->ee_rate_tpwr_g;
- ee->ee_rate_target_pwr_num[mode] = AR5K_EEPROM_N_2GHZ_CHAN;
- break;
- default:
- return -EINVAL;
- }
-
- /* Different freq mask for older eeproms (<= v3.2) */
- if (ee->ee_version <= AR5K_EEPROM_VERSION_3_2) {
- for (i = 0; i < (*rate_target_pwr_num); i++) {
- AR5K_EEPROM_READ(offset++, val);
- rate_pcal_info[i].freq =
- ath5k_eeprom_bin2freq(ee, (val >> 9) & 0x7f, mode);
-
- rate_pcal_info[i].target_power_6to24 = ((val >> 3) & 0x3f);
- rate_pcal_info[i].target_power_36 = (val << 3) & 0x3f;
-
- AR5K_EEPROM_READ(offset++, val);
-
- if (rate_pcal_info[i].freq == AR5K_EEPROM_CHANNEL_DIS ||
- val == 0) {
- (*rate_target_pwr_num) = i;
- break;
- }
-
- rate_pcal_info[i].target_power_36 |= ((val >> 13) & 0x7);
- rate_pcal_info[i].target_power_48 = ((val >> 7) & 0x3f);
- rate_pcal_info[i].target_power_54 = ((val >> 1) & 0x3f);
- }
- } else {
- for (i = 0; i < (*rate_target_pwr_num); i++) {
- AR5K_EEPROM_READ(offset++, val);
- rate_pcal_info[i].freq =
- ath5k_eeprom_bin2freq(ee, (val >> 8) & 0xff, mode);
-
- rate_pcal_info[i].target_power_6to24 = ((val >> 2) & 0x3f);
- rate_pcal_info[i].target_power_36 = (val << 4) & 0x3f;
-
- AR5K_EEPROM_READ(offset++, val);
-
- if (rate_pcal_info[i].freq == AR5K_EEPROM_CHANNEL_DIS ||
- val == 0) {
- (*rate_target_pwr_num) = i;
- break;
- }
-
- rate_pcal_info[i].target_power_36 |= (val >> 12) & 0xf;
- rate_pcal_info[i].target_power_48 = ((val >> 6) & 0x3f);
- rate_pcal_info[i].target_power_54 = (val & 0x3f);
- }
- }
-
- return 0;
-}
-
-/*
- * Read per channel calibration info from EEPROM
- *
- * This info is used to calibrate the baseband power table. Imagine
- * that for each channel there is a power curve that's hw specific
- * (depends on amplifier etc) and we try to "correct" this curve using
- * offests we pass on to phy chip (baseband -> before amplifier) so that
- * it can use accurate power values when setting tx power (takes amplifier's
- * performance on each channel into account).
- *
- * EEPROM provides us with the offsets for some pre-calibrated channels
- * and we have to interpolate to create the full table for these channels and
- * also the table for any channel.
- */
-static int
-ath5k_eeprom_read_pcal_info(struct ath5k_hw *ah)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- int (*read_pcal)(struct ath5k_hw *hw, int mode);
- int mode;
- int err;
-
- if ((ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) &&
- (AR5K_EEPROM_EEMAP(ee->ee_misc0) == 1))
- read_pcal = ath5k_eeprom_read_pcal_info_5112;
- else if ((ah->ah_ee_version >= AR5K_EEPROM_VERSION_5_0) &&
- (AR5K_EEPROM_EEMAP(ee->ee_misc0) == 2))
- read_pcal = ath5k_eeprom_read_pcal_info_2413;
- else
- read_pcal = ath5k_eeprom_read_pcal_info_5111;
-
-
- for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G;
- mode++) {
- err = read_pcal(ah, mode);
- if (err)
- return err;
-
- err = ath5k_eeprom_read_target_rate_pwr_info(ah, mode);
- if (err < 0)
- return err;
- }
-
- return 0;
-}
-
-static int
-ath5k_eeprom_free_pcal_info(struct ath5k_hw *ah, int mode)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_chan_pcal_info *chinfo;
- u8 pier, pdg;
-
- switch (mode) {
- case AR5K_EEPROM_MODE_11A:
- if (!AR5K_EEPROM_HDR_11A(ee->ee_header))
- return 0;
- chinfo = ee->ee_pwr_cal_a;
- break;
- case AR5K_EEPROM_MODE_11B:
- if (!AR5K_EEPROM_HDR_11B(ee->ee_header))
- return 0;
- chinfo = ee->ee_pwr_cal_b;
- break;
- case AR5K_EEPROM_MODE_11G:
- if (!AR5K_EEPROM_HDR_11G(ee->ee_header))
- return 0;
- chinfo = ee->ee_pwr_cal_g;
- break;
- default:
- return -EINVAL;
- }
-
- for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) {
- if (!chinfo[pier].pd_curves)
- continue;
-
- for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
- struct ath5k_pdgain_info *pd =
- &chinfo[pier].pd_curves[pdg];
-
- if (pd != NULL) {
- kfree(pd->pd_step);
- kfree(pd->pd_pwr);
- }
- }
-
- kfree(chinfo[pier].pd_curves);
- }
-
- 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)
-{
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- struct ath5k_edge_power *rep;
- unsigned int fmask, pmask;
- unsigned int ctl_mode;
- int ret, i, j;
- u32 offset;
- u16 val;
-
- pmask = AR5K_EEPROM_POWER_M;
- fmask = AR5K_EEPROM_FREQ_M(ee->ee_version);
- offset = AR5K_EEPROM_CTL(ee->ee_version);
- ee->ee_ctls = AR5K_EEPROM_N_CTLS(ee->ee_version);
- for (i = 0; i < ee->ee_ctls; i += 2) {
- AR5K_EEPROM_READ(offset++, val);
- ee->ee_ctl[i] = (val >> 8) & 0xff;
- ee->ee_ctl[i + 1] = val & 0xff;
- }
-
- offset = AR5K_EEPROM_GROUP8_OFFSET;
- if (ee->ee_version >= AR5K_EEPROM_VERSION_4_0)
- offset += AR5K_EEPROM_TARGET_PWRSTART(ee->ee_misc1) -
- AR5K_EEPROM_GROUP5_OFFSET;
- else
- offset += AR5K_EEPROM_GROUPS_START(ee->ee_version);
-
- rep = ee->ee_ctl_pwr;
- for(i = 0; i < ee->ee_ctls; i++) {
- switch(ee->ee_ctl[i] & AR5K_CTL_MODE_M) {
- case AR5K_CTL_11A:
- case AR5K_CTL_TURBO:
- ctl_mode = AR5K_EEPROM_MODE_11A;
- break;
- default:
- ctl_mode = AR5K_EEPROM_MODE_11G;
- break;
- }
- if (ee->ee_ctl[i] == 0) {
- if (ee->ee_version >= AR5K_EEPROM_VERSION_3_3)
- offset += 8;
- else
- offset += 7;
- rep += AR5K_EEPROM_N_EDGES;
- continue;
- }
- if (ee->ee_version >= AR5K_EEPROM_VERSION_3_3) {
- for (j = 0; j < AR5K_EEPROM_N_EDGES; j += 2) {
- AR5K_EEPROM_READ(offset++, val);
- rep[j].freq = (val >> 8) & fmask;
- rep[j + 1].freq = val & fmask;
- }
- for (j = 0; j < AR5K_EEPROM_N_EDGES; j += 2) {
- AR5K_EEPROM_READ(offset++, val);
- rep[j].edge = (val >> 8) & pmask;
- rep[j].flag = (val >> 14) & 1;
- rep[j + 1].edge = val & pmask;
- rep[j + 1].flag = (val >> 6) & 1;
- }
- } else {
- AR5K_EEPROM_READ(offset++, val);
- rep[0].freq = (val >> 9) & fmask;
- rep[1].freq = (val >> 2) & fmask;
- rep[2].freq = (val << 5) & fmask;
-
- AR5K_EEPROM_READ(offset++, val);
- rep[2].freq |= (val >> 11) & 0x1f;
- rep[3].freq = (val >> 4) & fmask;
- rep[4].freq = (val << 3) & fmask;
-
- AR5K_EEPROM_READ(offset++, val);
- rep[4].freq |= (val >> 13) & 0x7;
- rep[5].freq = (val >> 6) & fmask;
- rep[6].freq = (val << 1) & fmask;
-
- AR5K_EEPROM_READ(offset++, val);
- rep[6].freq |= (val >> 15) & 0x1;
- rep[7].freq = (val >> 8) & fmask;
-
- rep[0].edge = (val >> 2) & pmask;
- rep[1].edge = (val << 4) & pmask;
-
- AR5K_EEPROM_READ(offset++, val);
- rep[1].edge |= (val >> 12) & 0xf;
- rep[2].edge = (val >> 6) & pmask;
- rep[3].edge = val & pmask;
-
- AR5K_EEPROM_READ(offset++, val);
- rep[4].edge = (val >> 10) & pmask;
- rep[5].edge = (val >> 4) & pmask;
- rep[6].edge = (val << 2) & pmask;
-
- AR5K_EEPROM_READ(offset++, val);
- rep[6].edge |= (val >> 14) & 0x3;
- rep[7].edge = (val >> 8) & pmask;
- }
- for (j = 0; j < AR5K_EEPROM_N_EDGES; j++) {
- rep[j].freq = ath5k_eeprom_bin2freq(ee,
- rep[j].freq, ctl_mode);
- }
- rep += AR5K_EEPROM_N_EDGES;
- }
-
- return 0;
-}
-
-
-/*
- * Initialize eeprom power tables
- */
-int
-ath5k_eeprom_init(struct ath5k_hw *ah)
-{
- int err;
-
- err = ath5k_eeprom_init_header(ah);
- if (err < 0)
- return err;
-
- err = ath5k_eeprom_init_modes(ah);
- if (err < 0)
- return err;
-
- err = ath5k_eeprom_read_pcal_info(ah);
- if (err < 0)
- return err;
-
- err = ath5k_eeprom_read_ctl_info(ah);
- if (err < 0)
- return err;
-
- return 0;
-}
-
-/*
- * 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_eeprom_read(ah, 0x20, &data);
- if (ret)
- return ret;
-
- for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) {
- ret = ath5k_hw_eeprom_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;
-}
-
-bool ath5k_eeprom_is_hb63(struct ath5k_hw *ah)
-{
- u16 data;
-
- ath5k_hw_eeprom_read(ah, AR5K_EEPROM_IS_HB63, &data);
-
- if ((ah->ah_mac_version == (AR5K_SREV_AR2425 >> 4)) && data)
- return true;
- else
- return false;
-}
-