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linux_dsm_epyc7002/drivers/net/wireless/ath/ath9k/ar9003_aic.c
Sujith Manoharan 60544603b6 ath9k: Handle MCI_STATE_AIC_CAL 
Add the main AIC calibration function to
handle MCI_STATE_AIC_CAL.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-20 08:28:11 +02:00

600 lines
18 KiB
C
Raw Blame History

/*
* Copyright (c) 2015 Qualcomm Atheros Inc.
*
* Permission to use, copy, modify, and/or 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.
*/
#include "hw.h"
#include "hw-ops.h"
#include "ar9003_mci.h"
#include "ar9003_aic.h"
#include "ar9003_phy.h"
#include "reg_aic.h"
static const u8 com_att_db_table[ATH_AIC_MAX_COM_ATT_DB_TABLE] = {
0, 3, 9, 15, 21, 27
};
static const u16 aic_lin_table[ATH_AIC_MAX_AIC_LIN_TABLE] = {
8191, 7300, 6506, 5799, 5168, 4606, 4105, 3659,
3261, 2906, 2590, 2309, 2057, 1834, 1634, 1457,
1298, 1157, 1031, 919, 819, 730, 651, 580,
517, 461, 411, 366, 326, 291, 259, 231,
206, 183, 163, 146, 130, 116, 103, 92,
82, 73, 65, 58, 52, 46, 41, 37,
33, 29, 26, 23, 21, 18, 16, 15,
13, 12, 10, 9, 8, 7, 7, 6,
5, 5, 4, 4, 3
};
static bool ar9003_hw_is_aic_enabled(struct ath_hw *ah)
{
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
/*
* Disable AIC for now, until we have all the
* HW code and the driver-layer support ready.
*/
return false;
if (mci_hw->config & ATH_MCI_CONFIG_DISABLE_AIC)
return false;
return true;
}
static int16_t ar9003_aic_find_valid(struct ath_aic_sram_info *cal_sram,
bool dir, u8 index)
{
int16_t i;
if (dir) {
for (i = index + 1; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
if (cal_sram[i].valid)
break;
}
} else {
for (i = index - 1; i >= 0; i--) {
if (cal_sram[i].valid)
break;
}
}
if ((i >= ATH_AIC_MAX_BT_CHANNEL) || (i < 0))
i = -1;
return i;
}
/*
* type 0: aic_lin_table, 1: com_att_db_table
*/
static int16_t ar9003_aic_find_index(u8 type, int16_t value)
{
int16_t i = -1;
if (type == 0) {
for (i = ATH_AIC_MAX_AIC_LIN_TABLE - 1; i >= 0; i--) {
if (aic_lin_table[i] >= value)
break;
}
} else if (type == 1) {
for (i = 0; i < ATH_AIC_MAX_COM_ATT_DB_TABLE; i++) {
if (com_att_db_table[i] > value) {
i--;
break;
}
}
if (i >= ATH_AIC_MAX_COM_ATT_DB_TABLE)
i = -1;
}
return i;
}
static void ar9003_aic_gain_table(struct ath_hw *ah)
{
u32 aic_atten_word[19], i;
/* Config LNA gain difference */
REG_WRITE(ah, AR_PHY_BT_COEX_4, 0x2c200a00);
REG_WRITE(ah, AR_PHY_BT_COEX_5, 0x5c4e4438);
/* Program gain table */
aic_atten_word[0] = (0x1 & 0xf) << 14 | (0x1f & 0x1f) << 9 | (0x0 & 0xf) << 5 |
(0x1f & 0x1f); /* -01 dB: 4'd1, 5'd31, 00 dB: 4'd0, 5'd31 */
aic_atten_word[1] = (0x3 & 0xf) << 14 | (0x1f & 0x1f) << 9 | (0x2 & 0xf) << 5 |
(0x1f & 0x1f); /* -03 dB: 4'd3, 5'd31, -02 dB: 4'd2, 5'd31 */
aic_atten_word[2] = (0x5 & 0xf) << 14 | (0x1f & 0x1f) << 9 | (0x4 & 0xf) << 5 |
(0x1f & 0x1f); /* -05 dB: 4'd5, 5'd31, -04 dB: 4'd4, 5'd31 */
aic_atten_word[3] = (0x1 & 0xf) << 14 | (0x1e & 0x1f) << 9 | (0x0 & 0xf) << 5 |
(0x1e & 0x1f); /* -07 dB: 4'd1, 5'd30, -06 dB: 4'd0, 5'd30 */
aic_atten_word[4] = (0x3 & 0xf) << 14 | (0x1e & 0x1f) << 9 | (0x2 & 0xf) << 5 |
(0x1e & 0x1f); /* -09 dB: 4'd3, 5'd30, -08 dB: 4'd2, 5'd30 */
aic_atten_word[5] = (0x5 & 0xf) << 14 | (0x1e & 0x1f) << 9 | (0x4 & 0xf) << 5 |
(0x1e & 0x1f); /* -11 dB: 4'd5, 5'd30, -10 dB: 4'd4, 5'd30 */
aic_atten_word[6] = (0x1 & 0xf) << 14 | (0xf & 0x1f) << 9 | (0x0 & 0xf) << 5 |
(0xf & 0x1f); /* -13 dB: 4'd1, 5'd15, -12 dB: 4'd0, 5'd15 */
aic_atten_word[7] = (0x3 & 0xf) << 14 | (0xf & 0x1f) << 9 | (0x2 & 0xf) << 5 |
(0xf & 0x1f); /* -15 dB: 4'd3, 5'd15, -14 dB: 4'd2, 5'd15 */
aic_atten_word[8] = (0x5 & 0xf) << 14 | (0xf & 0x1f) << 9 | (0x4 & 0xf) << 5 |
(0xf & 0x1f); /* -17 dB: 4'd5, 5'd15, -16 dB: 4'd4, 5'd15 */
aic_atten_word[9] = (0x1 & 0xf) << 14 | (0x7 & 0x1f) << 9 | (0x0 & 0xf) << 5 |
(0x7 & 0x1f); /* -19 dB: 4'd1, 5'd07, -18 dB: 4'd0, 5'd07 */
aic_atten_word[10] = (0x3 & 0xf) << 14 | (0x7 & 0x1f) << 9 | (0x2 & 0xf) << 5 |
(0x7 & 0x1f); /* -21 dB: 4'd3, 5'd07, -20 dB: 4'd2, 5'd07 */
aic_atten_word[11] = (0x5 & 0xf) << 14 | (0x7 & 0x1f) << 9 | (0x4 & 0xf) << 5 |
(0x7 & 0x1f); /* -23 dB: 4'd5, 5'd07, -22 dB: 4'd4, 5'd07 */
aic_atten_word[12] = (0x7 & 0xf) << 14 | (0x7 & 0x1f) << 9 | (0x6 & 0xf) << 5 |
(0x7 & 0x1f); /* -25 dB: 4'd7, 5'd07, -24 dB: 4'd6, 5'd07 */
aic_atten_word[13] = (0x3 & 0xf) << 14 | (0x3 & 0x1f) << 9 | (0x2 & 0xf) << 5 |
(0x3 & 0x1f); /* -27 dB: 4'd3, 5'd03, -26 dB: 4'd2, 5'd03 */
aic_atten_word[14] = (0x5 & 0xf) << 14 | (0x3 & 0x1f) << 9 | (0x4 & 0xf) << 5 |
(0x3 & 0x1f); /* -29 dB: 4'd5, 5'd03, -28 dB: 4'd4, 5'd03 */
aic_atten_word[15] = (0x1 & 0xf) << 14 | (0x1 & 0x1f) << 9 | (0x0 & 0xf) << 5 |
(0x1 & 0x1f); /* -31 dB: 4'd1, 5'd01, -30 dB: 4'd0, 5'd01 */
aic_atten_word[16] = (0x3 & 0xf) << 14 | (0x1 & 0x1f) << 9 | (0x2 & 0xf) << 5 |
(0x1 & 0x1f); /* -33 dB: 4'd3, 5'd01, -32 dB: 4'd2, 5'd01 */
aic_atten_word[17] = (0x5 & 0xf) << 14 | (0x1 & 0x1f) << 9 | (0x4 & 0xf) << 5 |
(0x1 & 0x1f); /* -35 dB: 4'd5, 5'd01, -34 dB: 4'd4, 5'd01 */
aic_atten_word[18] = (0x7 & 0xf) << 14 | (0x1 & 0x1f) << 9 | (0x6 & 0xf) << 5 |
(0x1 & 0x1f); /* -37 dB: 4'd7, 5'd01, -36 dB: 4'd6, 5'd01 */
/* Write to Gain table with auto increment enabled. */
REG_WRITE(ah, (AR_PHY_AIC_SRAM_ADDR_B0 + 0x3000),
(ATH_AIC_SRAM_AUTO_INCREMENT |
ATH_AIC_SRAM_GAIN_TABLE_OFFSET));
for (i = 0; i < 19; i++) {
REG_WRITE(ah, (AR_PHY_AIC_SRAM_DATA_B0 + 0x3000),
aic_atten_word[i]);
}
}
static u8 ar9003_aic_cal_start(struct ath_hw *ah, u8 min_valid_count)
{
struct ath9k_hw_aic *aic = &ah->btcoex_hw.aic;
int i;
/* Write to Gain table with auto increment enabled. */
REG_WRITE(ah, (AR_PHY_AIC_SRAM_ADDR_B0 + 0x3000),
(ATH_AIC_SRAM_AUTO_INCREMENT |
ATH_AIC_SRAM_CAL_OFFSET));
for (i = 0; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
REG_WRITE(ah, (AR_PHY_AIC_SRAM_DATA_B0 + 0x3000), 0);
aic->aic_sram[i] = 0;
}
REG_WRITE(ah, AR_PHY_AIC_CTRL_0_B0,
(SM(0, AR_PHY_AIC_MON_ENABLE) |
SM(127, AR_PHY_AIC_CAL_MAX_HOP_COUNT) |
SM(min_valid_count, AR_PHY_AIC_CAL_MIN_VALID_COUNT) |
SM(37, AR_PHY_AIC_F_WLAN) |
SM(1, AR_PHY_AIC_CAL_CH_VALID_RESET) |
SM(0, AR_PHY_AIC_CAL_ENABLE) |
SM(0x40, AR_PHY_AIC_BTTX_PWR_THR) |
SM(0, AR_PHY_AIC_ENABLE)));
REG_WRITE(ah, AR_PHY_AIC_CTRL_0_B1,
(SM(0, AR_PHY_AIC_MON_ENABLE) |
SM(1, AR_PHY_AIC_CAL_CH_VALID_RESET) |
SM(0, AR_PHY_AIC_CAL_ENABLE) |
SM(0x40, AR_PHY_AIC_BTTX_PWR_THR) |
SM(0, AR_PHY_AIC_ENABLE)));
REG_WRITE(ah, AR_PHY_AIC_CTRL_1_B0,
(SM(8, AR_PHY_AIC_CAL_BT_REF_DELAY) |
SM(0, AR_PHY_AIC_BT_IDLE_CFG) |
SM(1, AR_PHY_AIC_STDBY_COND) |
SM(37, AR_PHY_AIC_STDBY_ROT_ATT_DB) |
SM(5, AR_PHY_AIC_STDBY_COM_ATT_DB) |
SM(15, AR_PHY_AIC_RSSI_MAX) |
SM(0, AR_PHY_AIC_RSSI_MIN)));
REG_WRITE(ah, AR_PHY_AIC_CTRL_1_B1,
(SM(15, AR_PHY_AIC_RSSI_MAX) |
SM(0, AR_PHY_AIC_RSSI_MIN)));
REG_WRITE(ah, AR_PHY_AIC_CTRL_2_B0,
(SM(44, AR_PHY_AIC_RADIO_DELAY) |
SM(8, AR_PHY_AIC_CAL_STEP_SIZE_CORR) |
SM(12, AR_PHY_AIC_CAL_ROT_IDX_CORR) |
SM(2, AR_PHY_AIC_CAL_CONV_CHECK_FACTOR) |
SM(5, AR_PHY_AIC_ROT_IDX_COUNT_MAX) |
SM(0, AR_PHY_AIC_CAL_SYNTH_TOGGLE) |
SM(0, AR_PHY_AIC_CAL_SYNTH_AFTER_BTRX) |
SM(200, AR_PHY_AIC_CAL_SYNTH_SETTLING)));
REG_WRITE(ah, AR_PHY_AIC_CTRL_3_B0,
(SM(2, AR_PHY_AIC_MON_MAX_HOP_COUNT) |
SM(1, AR_PHY_AIC_MON_MIN_STALE_COUNT) |
SM(1, AR_PHY_AIC_MON_PWR_EST_LONG) |
SM(2, AR_PHY_AIC_MON_PD_TALLY_SCALING) |
SM(10, AR_PHY_AIC_MON_PERF_THR) |
SM(2, AR_PHY_AIC_CAL_TARGET_MAG_SETTING) |
SM(1, AR_PHY_AIC_CAL_PERF_CHECK_FACTOR) |
SM(1, AR_PHY_AIC_CAL_PWR_EST_LONG)));
REG_WRITE(ah, AR_PHY_AIC_CTRL_4_B0,
(SM(2, AR_PHY_AIC_CAL_ROT_ATT_DB_EST_ISO) |
SM(3, AR_PHY_AIC_CAL_COM_ATT_DB_EST_ISO) |
SM(0, AR_PHY_AIC_CAL_ISO_EST_INIT_SETTING) |
SM(2, AR_PHY_AIC_CAL_COM_ATT_DB_BACKOFF) |
SM(1, AR_PHY_AIC_CAL_COM_ATT_DB_FIXED)));
REG_WRITE(ah, AR_PHY_AIC_CTRL_4_B1,
(SM(2, AR_PHY_AIC_CAL_ROT_ATT_DB_EST_ISO) |
SM(3, AR_PHY_AIC_CAL_COM_ATT_DB_EST_ISO) |
SM(0, AR_PHY_AIC_CAL_ISO_EST_INIT_SETTING) |
SM(2, AR_PHY_AIC_CAL_COM_ATT_DB_BACKOFF) |
SM(1, AR_PHY_AIC_CAL_COM_ATT_DB_FIXED)));
ar9003_aic_gain_table(ah);
/* Need to enable AIC reference signal in BT modem. */
REG_WRITE(ah, ATH_AIC_BT_JUPITER_CTRL,
(REG_READ(ah, ATH_AIC_BT_JUPITER_CTRL) |
ATH_AIC_BT_AIC_ENABLE));
aic->aic_cal_start_time = REG_READ(ah, AR_TSF_L32);
/* Start calibration */
REG_CLR_BIT(ah, AR_PHY_AIC_CTRL_0_B1, AR_PHY_AIC_CAL_ENABLE);
REG_SET_BIT(ah, AR_PHY_AIC_CTRL_0_B1, AR_PHY_AIC_CAL_CH_VALID_RESET);
REG_SET_BIT(ah, AR_PHY_AIC_CTRL_0_B1, AR_PHY_AIC_CAL_ENABLE);
aic->aic_caled_chan = 0;
aic->aic_cal_state = AIC_CAL_STATE_STARTED;
return aic->aic_cal_state;
}
static bool ar9003_aic_cal_post_process(struct ath_hw *ah)
{
struct ath9k_hw_aic *aic = &ah->btcoex_hw.aic;
struct ath_aic_sram_info cal_sram[ATH_AIC_MAX_BT_CHANNEL];
struct ath_aic_out_info aic_sram[ATH_AIC_MAX_BT_CHANNEL];
u32 dir_path_gain_idx, quad_path_gain_idx, value;
u32 fixed_com_att_db;
int8_t dir_path_sign, quad_path_sign;
int16_t i;
bool ret = true;
memset(&cal_sram, 0, sizeof(cal_sram));
memset(&aic_sram, 0, sizeof(aic_sram));
for (i = 0; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
value = aic->aic_sram[i];
cal_sram[i].valid =
MS(value, AR_PHY_AIC_SRAM_VALID);
cal_sram[i].rot_quad_att_db =
MS(value, AR_PHY_AIC_SRAM_ROT_QUAD_ATT_DB);
cal_sram[i].vga_quad_sign =
MS(value, AR_PHY_AIC_SRAM_VGA_QUAD_SIGN);
cal_sram[i].rot_dir_att_db =
MS(value, AR_PHY_AIC_SRAM_ROT_DIR_ATT_DB);
cal_sram[i].vga_dir_sign =
MS(value, AR_PHY_AIC_SRAM_VGA_DIR_SIGN);
cal_sram[i].com_att_6db =
MS(value, AR_PHY_AIC_SRAM_COM_ATT_6DB);
if (cal_sram[i].valid) {
dir_path_gain_idx = cal_sram[i].rot_dir_att_db +
com_att_db_table[cal_sram[i].com_att_6db];
quad_path_gain_idx = cal_sram[i].rot_quad_att_db +
com_att_db_table[cal_sram[i].com_att_6db];
dir_path_sign = (cal_sram[i].vga_dir_sign) ? 1 : -1;
quad_path_sign = (cal_sram[i].vga_quad_sign) ? 1 : -1;
aic_sram[i].dir_path_gain_lin = dir_path_sign *
aic_lin_table[dir_path_gain_idx];
aic_sram[i].quad_path_gain_lin = quad_path_sign *
aic_lin_table[quad_path_gain_idx];
}
}
for (i = 0; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
int16_t start_idx, end_idx;
if (cal_sram[i].valid)
continue;
start_idx = ar9003_aic_find_valid(cal_sram, 0, i);
end_idx = ar9003_aic_find_valid(cal_sram, 1, i);
if (start_idx < 0) {
/* extrapolation */
start_idx = end_idx;
end_idx = ar9003_aic_find_valid(cal_sram, 1, start_idx);
if (end_idx < 0) {
ret = false;
break;
}
aic_sram[i].dir_path_gain_lin =
((aic_sram[start_idx].dir_path_gain_lin -
aic_sram[end_idx].dir_path_gain_lin) *
(start_idx - i) + ((end_idx - i) >> 1)) /
(end_idx - i) +
aic_sram[start_idx].dir_path_gain_lin;
aic_sram[i].quad_path_gain_lin =
((aic_sram[start_idx].quad_path_gain_lin -
aic_sram[end_idx].quad_path_gain_lin) *
(start_idx - i) + ((end_idx - i) >> 1)) /
(end_idx - i) +
aic_sram[start_idx].quad_path_gain_lin;
}
if (end_idx < 0) {
/* extrapolation */
end_idx = ar9003_aic_find_valid(cal_sram, 0, start_idx);
if (end_idx < 0) {
ret = false;
break;
}
aic_sram[i].dir_path_gain_lin =
((aic_sram[start_idx].dir_path_gain_lin -
aic_sram[end_idx].dir_path_gain_lin) *
(i - start_idx) + ((start_idx - end_idx) >> 1)) /
(start_idx - end_idx) +
aic_sram[start_idx].dir_path_gain_lin;
aic_sram[i].quad_path_gain_lin =
((aic_sram[start_idx].quad_path_gain_lin -
aic_sram[end_idx].quad_path_gain_lin) *
(i - start_idx) + ((start_idx - end_idx) >> 1)) /
(start_idx - end_idx) +
aic_sram[start_idx].quad_path_gain_lin;
} else if (start_idx >= 0){
/* interpolation */
aic_sram[i].dir_path_gain_lin =
(((end_idx - i) * aic_sram[start_idx].dir_path_gain_lin) +
((i - start_idx) * aic_sram[end_idx].dir_path_gain_lin) +
((end_idx - start_idx) >> 1)) /
(end_idx - start_idx);
aic_sram[i].quad_path_gain_lin =
(((end_idx - i) * aic_sram[start_idx].quad_path_gain_lin) +
((i - start_idx) * aic_sram[end_idx].quad_path_gain_lin) +
((end_idx - start_idx) >> 1))/
(end_idx - start_idx);
}
}
/* From dir/quad_path_gain_lin to sram. */
i = ar9003_aic_find_valid(cal_sram, 1, 0);
if (i < 0) {
i = 0;
ret = false;
}
fixed_com_att_db = com_att_db_table[cal_sram[i].com_att_6db];
for (i = 0; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
int16_t rot_dir_path_att_db, rot_quad_path_att_db;
aic_sram[i].sram.vga_dir_sign =
(aic_sram[i].dir_path_gain_lin >= 0) ? 1 : 0;
aic_sram[i].sram.vga_quad_sign=
(aic_sram[i].quad_path_gain_lin >= 0) ? 1 : 0;
rot_dir_path_att_db =
ar9003_aic_find_index(0, abs(aic_sram[i].dir_path_gain_lin)) -
fixed_com_att_db;
rot_quad_path_att_db =
ar9003_aic_find_index(0, abs(aic_sram[i].quad_path_gain_lin)) -
fixed_com_att_db;
aic_sram[i].sram.com_att_6db =
ar9003_aic_find_index(1, fixed_com_att_db);
aic_sram[i].sram.valid = 1;
aic_sram[i].sram.rot_dir_att_db =
min(max(rot_dir_path_att_db,
(int16_t)ATH_AIC_MIN_ROT_DIR_ATT_DB),
ATH_AIC_MAX_ROT_DIR_ATT_DB);
aic_sram[i].sram.rot_quad_att_db =
min(max(rot_quad_path_att_db,
(int16_t)ATH_AIC_MIN_ROT_QUAD_ATT_DB),
ATH_AIC_MAX_ROT_QUAD_ATT_DB);
}
for (i = 0; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
aic->aic_sram[i] = (SM(aic_sram[i].sram.vga_dir_sign,
AR_PHY_AIC_SRAM_VGA_DIR_SIGN) |
SM(aic_sram[i].sram.vga_quad_sign,
AR_PHY_AIC_SRAM_VGA_QUAD_SIGN) |
SM(aic_sram[i].sram.com_att_6db,
AR_PHY_AIC_SRAM_COM_ATT_6DB) |
SM(aic_sram[i].sram.valid,
AR_PHY_AIC_SRAM_VALID) |
SM(aic_sram[i].sram.rot_dir_att_db,
AR_PHY_AIC_SRAM_ROT_DIR_ATT_DB) |
SM(aic_sram[i].sram.rot_quad_att_db,
AR_PHY_AIC_SRAM_ROT_QUAD_ATT_DB));
}
return ret;
}
static void ar9003_aic_cal_done(struct ath_hw *ah)
{
struct ath9k_hw_aic *aic = &ah->btcoex_hw.aic;
/* Disable AIC reference signal in BT modem. */
REG_WRITE(ah, ATH_AIC_BT_JUPITER_CTRL,
(REG_READ(ah, ATH_AIC_BT_JUPITER_CTRL) &
~ATH_AIC_BT_AIC_ENABLE));
if (ar9003_aic_cal_post_process(ah))
aic->aic_cal_state = AIC_CAL_STATE_DONE;
else
aic->aic_cal_state = AIC_CAL_STATE_ERROR;
}
static u8 ar9003_aic_cal_continue(struct ath_hw *ah, bool cal_once)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
struct ath9k_hw_aic *aic = &ah->btcoex_hw.aic;
int i, num_chan;
num_chan = MS(mci_hw->config, ATH_MCI_CONFIG_AIC_CAL_NUM_CHAN);
if (!num_chan) {
aic->aic_cal_state = AIC_CAL_STATE_ERROR;
return aic->aic_cal_state;
}
if (cal_once) {
for (i = 0; i < 10000; i++) {
if ((REG_READ(ah, AR_PHY_AIC_CTRL_0_B1) &
AR_PHY_AIC_CAL_ENABLE) == 0)
break;
udelay(100);
}
}
/*
* Use AR_PHY_AIC_CAL_ENABLE bit instead of AR_PHY_AIC_CAL_DONE.
* Sometimes CAL_DONE bit is not asserted.
*/
if ((REG_READ(ah, AR_PHY_AIC_CTRL_0_B1) &
AR_PHY_AIC_CAL_ENABLE) != 0) {
ath_dbg(common, MCI, "AIC cal is not done after 40ms");
goto exit;
}
REG_WRITE(ah, AR_PHY_AIC_SRAM_ADDR_B1,
(ATH_AIC_SRAM_CAL_OFFSET | ATH_AIC_SRAM_AUTO_INCREMENT));
for (i = 0; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
u32 value;
value = REG_READ(ah, AR_PHY_AIC_SRAM_DATA_B1);
if (value & 0x01) {
if (aic->aic_sram[i] == 0)
aic->aic_caled_chan++;
aic->aic_sram[i] = value;
if (!cal_once)
break;
}
}
if ((aic->aic_caled_chan >= num_chan) || cal_once) {
ar9003_aic_cal_done(ah);
} else {
/* Start calibration */
REG_CLR_BIT(ah, AR_PHY_AIC_CTRL_0_B1, AR_PHY_AIC_CAL_ENABLE);
REG_SET_BIT(ah, AR_PHY_AIC_CTRL_0_B1,
AR_PHY_AIC_CAL_CH_VALID_RESET);
REG_SET_BIT(ah, AR_PHY_AIC_CTRL_0_B1, AR_PHY_AIC_CAL_ENABLE);
}
exit:
return aic->aic_cal_state;
}
u8 ar9003_aic_calibration(struct ath_hw *ah)
{
struct ath9k_hw_aic *aic = &ah->btcoex_hw.aic;
u8 cal_ret = AIC_CAL_STATE_ERROR;
switch (aic->aic_cal_state) {
case AIC_CAL_STATE_IDLE:
cal_ret = ar9003_aic_cal_start(ah, 1);
break;
case AIC_CAL_STATE_STARTED:
cal_ret = ar9003_aic_cal_continue(ah, false);
break;
case AIC_CAL_STATE_DONE:
cal_ret = AIC_CAL_STATE_DONE;
break;
default:
break;
}
return cal_ret;
}
u8 ar9003_aic_start_normal(struct ath_hw *ah)
{
struct ath9k_hw_aic *aic = &ah->btcoex_hw.aic;
int16_t i;
if (aic->aic_cal_state != AIC_CAL_STATE_DONE)
return 1;
ar9003_aic_gain_table(ah);
REG_WRITE(ah, AR_PHY_AIC_SRAM_ADDR_B1, ATH_AIC_SRAM_AUTO_INCREMENT);
for (i = 0; i < ATH_AIC_MAX_BT_CHANNEL; i++) {
REG_WRITE(ah, AR_PHY_AIC_SRAM_DATA_B1, aic->aic_sram[i]);
}
/* FIXME: Replace these with proper register names */
REG_WRITE(ah, 0xa6b0, 0x80);
REG_WRITE(ah, 0xa6b4, 0x5b2df0);
REG_WRITE(ah, 0xa6b8, 0x10762cc8);
REG_WRITE(ah, 0xa6bc, 0x1219a4b);
REG_WRITE(ah, 0xa6c0, 0x1e01);
REG_WRITE(ah, 0xb6b4, 0xf0);
REG_WRITE(ah, 0xb6c0, 0x1e01);
REG_WRITE(ah, 0xb6b0, 0x81);
REG_WRITE(ah, AR_PHY_65NM_CH1_RXTX4, 0x40000000);
aic->aic_enabled = true;
return 0;
}
u8 ar9003_aic_cal_reset(struct ath_hw *ah)
{
struct ath9k_hw_aic *aic = &ah->btcoex_hw.aic;
aic->aic_cal_state = AIC_CAL_STATE_IDLE;
return aic->aic_cal_state;
}
u8 ar9003_aic_calibration_single(struct ath_hw *ah)
{
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
u8 cal_ret;
int num_chan;
num_chan = MS(mci_hw->config, ATH_MCI_CONFIG_AIC_CAL_NUM_CHAN);
(void) ar9003_aic_cal_start(ah, num_chan);
cal_ret = ar9003_aic_cal_continue(ah, true);
return cal_ret;
}
void ar9003_hw_attach_aic_ops(struct ath_hw *ah)
{
struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
priv_ops->is_aic_enabled = ar9003_hw_is_aic_enabled;
}
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