| /* |
| * Copyright (c) 2015-2017, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * 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. |
| */ |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/device.h> |
| #include <linux/printk.h> |
| #include <linux/ratelimit.h> |
| #include <linux/kernel.h> |
| #include <linux/gpio.h> |
| #include <linux/delay.h> |
| #include <linux/regmap.h> |
| #include <linux/mfd/wcd9xxx/core.h> |
| #include <linux/mfd/wcd9xxx/wcd9xxx-irq.h> |
| #include <linux/mfd/wcd9xxx/wcd9xxx_registers.h> |
| #include <linux/mfd/wcd934x/registers.h> |
| #include <linux/mfd/wcd934x/irq.h> |
| #include <linux/mfd/wcd9xxx/pdata.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include "wcd934x.h" |
| #include "wcd934x-mbhc.h" |
| #include "../wcdcal-hwdep.h" |
| #include "../wcd-mbhc-v2-api.h" |
| |
| #define TAVIL_ZDET_SUPPORTED true |
| /* Z value defined in milliohm */ |
| #define TAVIL_ZDET_VAL_32 32000 |
| #define TAVIL_ZDET_VAL_400 400000 |
| #define TAVIL_ZDET_VAL_1200 1200000 |
| #define TAVIL_ZDET_VAL_100K 100000000 |
| /* Z floating defined in ohms */ |
| #define TAVIL_ZDET_FLOATING_IMPEDANCE 0x0FFFFFFE |
| |
| #define TAVIL_ZDET_NUM_MEASUREMENTS 900 |
| #define TAVIL_MBHC_GET_C1(c) ((c & 0xC000) >> 14) |
| #define TAVIL_MBHC_GET_X1(x) (x & 0x3FFF) |
| /* Z value compared in milliOhm */ |
| #define TAVIL_MBHC_IS_SECOND_RAMP_REQUIRED(z) ((z > 400000) || (z < 32000)) |
| #define TAVIL_MBHC_ZDET_CONST (86 * 16384) |
| #define TAVIL_MBHC_MOISTURE_RREF R_24_KOHM |
| |
| static struct wcd_mbhc_register |
| wcd_mbhc_registers[WCD_MBHC_REG_FUNC_MAX] = { |
| WCD_MBHC_REGISTER("WCD_MBHC_L_DET_EN", |
| WCD934X_ANA_MBHC_MECH, 0x80, 7, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_GND_DET_EN", |
| WCD934X_ANA_MBHC_MECH, 0x40, 6, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_MECH_DETECTION_TYPE", |
| WCD934X_ANA_MBHC_MECH, 0x20, 5, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_MIC_CLAMP_CTL", |
| WCD934X_MBHC_NEW_PLUG_DETECT_CTL, 0x30, 4, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ELECT_DETECTION_TYPE", |
| WCD934X_ANA_MBHC_ELECT, 0x08, 3, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HS_L_DET_PULL_UP_CTRL", |
| WCD934X_MBHC_NEW_PLUG_DETECT_CTL, 0xC0, 6, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HS_L_DET_PULL_UP_COMP_CTRL", |
| WCD934X_ANA_MBHC_MECH, 0x04, 2, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHL_PLUG_TYPE", |
| WCD934X_ANA_MBHC_MECH, 0x10, 4, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_GND_PLUG_TYPE", |
| WCD934X_ANA_MBHC_MECH, 0x08, 3, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_SW_HPH_LP_100K_TO_GND", |
| WCD934X_ANA_MBHC_MECH, 0x01, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ELECT_SCHMT_ISRC", |
| WCD934X_ANA_MBHC_ELECT, 0x06, 1, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_FSM_EN", |
| WCD934X_ANA_MBHC_ELECT, 0x80, 7, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_INSREM_DBNC", |
| WCD934X_MBHC_NEW_PLUG_DETECT_CTL, 0x0F, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_BTN_DBNC", |
| WCD934X_MBHC_NEW_CTL_1, 0x03, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HS_VREF", |
| WCD934X_MBHC_NEW_CTL_2, 0x03, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HS_COMP_RESULT", |
| WCD934X_ANA_MBHC_RESULT_3, 0x08, 3, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_MIC_SCHMT_RESULT", |
| WCD934X_ANA_MBHC_RESULT_3, 0x20, 5, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHL_SCHMT_RESULT", |
| WCD934X_ANA_MBHC_RESULT_3, 0x80, 7, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHR_SCHMT_RESULT", |
| WCD934X_ANA_MBHC_RESULT_3, 0x40, 6, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_OCP_FSM_EN", |
| WCD934X_HPH_OCP_CTL, 0x10, 4, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_BTN_RESULT", |
| WCD934X_ANA_MBHC_RESULT_3, 0x07, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_BTN_ISRC_CTL", |
| WCD934X_ANA_MBHC_ELECT, 0x70, 4, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ELECT_RESULT", |
| WCD934X_ANA_MBHC_RESULT_3, 0xFF, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_MICB_CTRL", |
| WCD934X_ANA_MICB2, 0xC0, 6, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPH_CNP_WG_TIME", |
| WCD934X_HPH_CNP_WG_TIME, 0xFF, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHR_PA_EN", |
| WCD934X_ANA_HPH, 0x40, 6, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHL_PA_EN", |
| WCD934X_ANA_HPH, 0x80, 7, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPH_PA_EN", |
| WCD934X_ANA_HPH, 0xC0, 6, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_SWCH_LEVEL_REMOVE", |
| WCD934X_ANA_MBHC_RESULT_3, 0x10, 4, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_PULLDOWN_CTRL", |
| 0, 0, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ANC_DET_EN", |
| WCD934X_MBHC_CTL_BCS, 0x02, 1, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_FSM_STATUS", |
| WCD934X_MBHC_STATUS_SPARE_1, 0x01, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_MUX_CTL", |
| WCD934X_MBHC_NEW_CTL_2, 0x70, 4, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHL_OCP_DET_EN", |
| WCD934X_HPH_L_TEST, 0x01, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHR_OCP_DET_EN", |
| WCD934X_HPH_R_TEST, 0x01, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHL_OCP_STATUS", |
| WCD934X_INTR_PIN1_STATUS0, 0x04, 2, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_HPHR_OCP_STATUS", |
| WCD934X_INTR_PIN1_STATUS0, 0x08, 3, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ADC_EN", |
| WCD934X_MBHC_NEW_CTL_1, 0x08, 3, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ADC_COMPLETE", WCD934X_MBHC_NEW_FSM_STATUS, |
| 0x40, 6, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ADC_TIMEOUT", WCD934X_MBHC_NEW_FSM_STATUS, |
| 0x80, 7, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ADC_RESULT", WCD934X_MBHC_NEW_ADC_RESULT, |
| 0xFF, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_MICB2_VOUT", WCD934X_ANA_MICB2, 0x3F, 0, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ADC_MODE", |
| WCD934X_MBHC_NEW_CTL_1, 0x10, 4, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_DETECTION_DONE", |
| WCD934X_MBHC_NEW_CTL_1, 0x04, 2, 0), |
| WCD_MBHC_REGISTER("WCD_MBHC_ELECT_ISRC_EN", |
| WCD934X_ANA_MBHC_ZDET, 0x02, 1, 0), |
| }; |
| |
| static const struct wcd_mbhc_intr intr_ids = { |
| .mbhc_sw_intr = WCD934X_IRQ_MBHC_SW_DET, |
| .mbhc_btn_press_intr = WCD934X_IRQ_MBHC_BUTTON_PRESS_DET, |
| .mbhc_btn_release_intr = WCD934X_IRQ_MBHC_BUTTON_RELEASE_DET, |
| .mbhc_hs_ins_intr = WCD934X_IRQ_MBHC_ELECT_INS_REM_LEG_DET, |
| .mbhc_hs_rem_intr = WCD934X_IRQ_MBHC_ELECT_INS_REM_DET, |
| .hph_left_ocp = WCD934X_IRQ_HPH_PA_OCPL_FAULT, |
| .hph_right_ocp = WCD934X_IRQ_HPH_PA_OCPR_FAULT, |
| }; |
| |
| |
| static char on_demand_supply_name[][MAX_ON_DEMAND_SUPPLY_NAME_LENGTH] = { |
| "cdc-vdd-mic-bias", |
| }; |
| |
| struct tavil_mbhc_zdet_param { |
| u16 ldo_ctl; |
| u16 noff; |
| u16 nshift; |
| u16 btn5; |
| u16 btn6; |
| u16 btn7; |
| }; |
| |
| static int tavil_mbhc_request_irq(struct snd_soc_codec *codec, |
| int irq, irq_handler_t handler, |
| const char *name, void *data) |
| { |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| struct wcd9xxx_core_resource *core_res = |
| &wcd9xxx->core_res; |
| |
| return wcd9xxx_request_irq(core_res, irq, handler, name, data); |
| } |
| |
| static void tavil_mbhc_irq_control(struct snd_soc_codec *codec, |
| int irq, bool enable) |
| { |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| struct wcd9xxx_core_resource *core_res = |
| &wcd9xxx->core_res; |
| if (enable) |
| wcd9xxx_enable_irq(core_res, irq); |
| else |
| wcd9xxx_disable_irq(core_res, irq); |
| } |
| |
| static int tavil_mbhc_free_irq(struct snd_soc_codec *codec, |
| int irq, void *data) |
| { |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| struct wcd9xxx_core_resource *core_res = |
| &wcd9xxx->core_res; |
| |
| wcd9xxx_free_irq(core_res, irq, data); |
| return 0; |
| } |
| |
| static void tavil_mbhc_clk_setup(struct snd_soc_codec *codec, |
| bool enable) |
| { |
| if (enable) |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_CTL_1, |
| 0x80, 0x80); |
| else |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_CTL_1, |
| 0x80, 0x00); |
| } |
| |
| static int tavil_mbhc_btn_to_num(struct snd_soc_codec *codec) |
| { |
| return snd_soc_read(codec, WCD934X_ANA_MBHC_RESULT_3) & 0x7; |
| } |
| |
| static int tavil_enable_ext_mb_source(struct wcd_mbhc *mbhc, |
| bool turn_on) |
| { |
| struct wcd934x_mbhc *wcd934x_mbhc; |
| struct snd_soc_codec *codec = mbhc->codec; |
| struct wcd934x_on_demand_supply *supply; |
| int ret = 0; |
| |
| wcd934x_mbhc = container_of(mbhc, struct wcd934x_mbhc, wcd_mbhc); |
| |
| supply = &wcd934x_mbhc->on_demand_list[WCD934X_ON_DEMAND_MICBIAS]; |
| if (!supply->supply) { |
| dev_dbg(codec->dev, "%s: warning supply not present ond for %s\n", |
| __func__, "onDemand Micbias"); |
| return ret; |
| } |
| |
| dev_dbg(codec->dev, "%s turn_on: %d count: %d\n", __func__, turn_on, |
| supply->ondemand_supply_count); |
| |
| if (turn_on) { |
| if (!(supply->ondemand_supply_count)) { |
| ret = snd_soc_dapm_force_enable_pin( |
| snd_soc_codec_get_dapm(codec), |
| "MICBIAS_REGULATOR"); |
| snd_soc_dapm_sync(snd_soc_codec_get_dapm(codec)); |
| } |
| supply->ondemand_supply_count++; |
| } else { |
| if (supply->ondemand_supply_count > 0) |
| supply->ondemand_supply_count--; |
| if (!(supply->ondemand_supply_count)) { |
| ret = snd_soc_dapm_disable_pin( |
| snd_soc_codec_get_dapm(codec), |
| "MICBIAS_REGULATOR"); |
| snd_soc_dapm_sync(snd_soc_codec_get_dapm(codec)); |
| } |
| } |
| |
| if (ret) |
| dev_err(codec->dev, "%s: Failed to %s external micbias source\n", |
| __func__, turn_on ? "enable" : "disabled"); |
| else |
| dev_dbg(codec->dev, "%s: %s external micbias source\n", |
| __func__, turn_on ? "Enabled" : "Disabled"); |
| |
| return ret; |
| } |
| |
| static void tavil_mbhc_mbhc_bias_control(struct snd_soc_codec *codec, |
| bool enable) |
| { |
| if (enable) |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_ELECT, |
| 0x01, 0x01); |
| else |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_ELECT, |
| 0x01, 0x00); |
| } |
| |
| static void tavil_mbhc_program_btn_thr(struct snd_soc_codec *codec, |
| s16 *btn_low, s16 *btn_high, |
| int num_btn, bool is_micbias) |
| { |
| int i; |
| int vth; |
| |
| if (num_btn > WCD_MBHC_DEF_BUTTONS) { |
| dev_err(codec->dev, "%s: invalid number of buttons: %d\n", |
| __func__, num_btn); |
| return; |
| } |
| /* |
| * Tavil just needs one set of thresholds for button detection |
| * due to micbias voltage ramp to pullup upon button press. So |
| * btn_low and is_micbias are ignored and always program button |
| * thresholds using btn_high. |
| */ |
| for (i = 0; i < num_btn; i++) { |
| vth = ((btn_high[i] * 2) / 25) & 0x3F; |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_BTN0 + i, |
| 0xFC, vth << 2); |
| dev_dbg(codec->dev, "%s: btn_high[%d]: %d, vth: %d\n", |
| __func__, i, btn_high[i], vth); |
| } |
| } |
| |
| static bool tavil_mbhc_lock_sleep(struct wcd_mbhc *mbhc, bool lock) |
| { |
| struct snd_soc_codec *codec = mbhc->codec; |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| struct wcd9xxx_core_resource *core_res = |
| &wcd9xxx->core_res; |
| bool ret = 0; |
| |
| if (lock) |
| ret = wcd9xxx_lock_sleep(core_res); |
| else |
| wcd9xxx_unlock_sleep(core_res); |
| |
| return ret; |
| } |
| |
| static int tavil_mbhc_register_notifier(struct wcd_mbhc *mbhc, |
| struct notifier_block *nblock, |
| bool enable) |
| { |
| struct wcd934x_mbhc *wcd934x_mbhc; |
| |
| wcd934x_mbhc = container_of(mbhc, struct wcd934x_mbhc, wcd_mbhc); |
| |
| if (enable) |
| return blocking_notifier_chain_register(&wcd934x_mbhc->notifier, |
| nblock); |
| else |
| return blocking_notifier_chain_unregister( |
| &wcd934x_mbhc->notifier, nblock); |
| } |
| |
| static bool tavil_mbhc_micb_en_status(struct wcd_mbhc *mbhc, int micb_num) |
| { |
| u8 val; |
| |
| if (micb_num == MIC_BIAS_2) { |
| val = (snd_soc_read(mbhc->codec, WCD934X_ANA_MICB2) >> 6); |
| if (val == 0x01) |
| return true; |
| } |
| return false; |
| } |
| |
| static bool tavil_mbhc_hph_pa_on_status(struct snd_soc_codec *codec) |
| { |
| return (snd_soc_read(codec, WCD934X_ANA_HPH) & 0xC0) ? true : false; |
| } |
| |
| static void tavil_mbhc_hph_l_pull_up_control( |
| struct snd_soc_codec *codec, |
| enum mbhc_hs_pullup_iref pull_up_cur) |
| { |
| /* Default pull up current to 2uA */ |
| if (pull_up_cur < I_OFF || pull_up_cur > I_3P0_UA || |
| pull_up_cur == I_DEFAULT) |
| pull_up_cur = I_2P0_UA; |
| |
| dev_dbg(codec->dev, "%s: HS pull up current:%d\n", |
| __func__, pull_up_cur); |
| |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_PLUG_DETECT_CTL, |
| 0xC0, pull_up_cur << 6); |
| } |
| |
| static int tavil_mbhc_request_micbias(struct snd_soc_codec *codec, |
| int micb_num, int req) |
| { |
| int ret; |
| |
| /* |
| * If micbias is requested, make sure that there |
| * is vote to enable mclk |
| */ |
| if (req == MICB_ENABLE) |
| tavil_cdc_mclk_enable(codec, true); |
| |
| ret = tavil_micbias_control(codec, micb_num, req, false); |
| |
| /* |
| * Release vote for mclk while requesting for |
| * micbias disable |
| */ |
| if (req == MICB_DISABLE) |
| tavil_cdc_mclk_enable(codec, false); |
| |
| return ret; |
| } |
| |
| static void tavil_mbhc_micb_ramp_control(struct snd_soc_codec *codec, |
| bool enable) |
| { |
| if (enable) { |
| snd_soc_update_bits(codec, WCD934X_ANA_MICB2_RAMP, |
| 0x1C, 0x0C); |
| snd_soc_update_bits(codec, WCD934X_ANA_MICB2_RAMP, |
| 0x80, 0x80); |
| } else { |
| snd_soc_update_bits(codec, WCD934X_ANA_MICB2_RAMP, |
| 0x80, 0x00); |
| snd_soc_update_bits(codec, WCD934X_ANA_MICB2_RAMP, |
| 0x1C, 0x00); |
| } |
| } |
| |
| static struct firmware_cal *tavil_get_hwdep_fw_cal(struct wcd_mbhc *mbhc, |
| enum wcd_cal_type type) |
| { |
| struct wcd934x_mbhc *wcd934x_mbhc; |
| struct firmware_cal *hwdep_cal; |
| struct snd_soc_codec *codec = mbhc->codec; |
| |
| wcd934x_mbhc = container_of(mbhc, struct wcd934x_mbhc, wcd_mbhc); |
| |
| if (!codec) { |
| pr_err("%s: NULL codec pointer\n", __func__); |
| return NULL; |
| } |
| hwdep_cal = wcdcal_get_fw_cal(wcd934x_mbhc->fw_data, type); |
| if (!hwdep_cal) |
| dev_err(codec->dev, "%s: cal not sent by %d\n", |
| __func__, type); |
| |
| return hwdep_cal; |
| } |
| |
| static int tavil_mbhc_micb_ctrl_threshold_mic(struct snd_soc_codec *codec, |
| int micb_num, bool req_en) |
| { |
| struct wcd9xxx_pdata *pdata = dev_get_platdata(codec->dev->parent); |
| int rc, micb_mv; |
| |
| if (micb_num != MIC_BIAS_2) |
| return -EINVAL; |
| |
| /* |
| * If device tree micbias level is already above the minimum |
| * voltage needed to detect threshold microphone, then do |
| * not change the micbias, just return. |
| */ |
| if (pdata->micbias.micb2_mv >= WCD_MBHC_THR_HS_MICB_MV) |
| return 0; |
| |
| micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : pdata->micbias.micb2_mv; |
| |
| rc = tavil_mbhc_micb_adjust_voltage(codec, micb_mv, MIC_BIAS_2); |
| |
| return rc; |
| } |
| |
| static inline void tavil_mbhc_get_result_params(struct wcd9xxx *wcd9xxx, |
| s16 *d1_a, u16 noff, |
| int32_t *zdet) |
| { |
| int i; |
| int val, val1; |
| s16 c1; |
| s32 x1, d1; |
| int32_t denom; |
| int minCode_param[] = { |
| 3277, 1639, 820, 410, 205, 103, 52, 26 |
| }; |
| |
| regmap_update_bits(wcd9xxx->regmap, WCD934X_ANA_MBHC_ZDET, 0x20, 0x20); |
| for (i = 0; i < TAVIL_ZDET_NUM_MEASUREMENTS; i++) { |
| regmap_read(wcd9xxx->regmap, WCD934X_ANA_MBHC_RESULT_2, &val); |
| if (val & 0x80) |
| break; |
| } |
| val = val << 0x8; |
| regmap_read(wcd9xxx->regmap, WCD934X_ANA_MBHC_RESULT_1, &val1); |
| val |= val1; |
| regmap_update_bits(wcd9xxx->regmap, WCD934X_ANA_MBHC_ZDET, 0x20, 0x00); |
| x1 = TAVIL_MBHC_GET_X1(val); |
| c1 = TAVIL_MBHC_GET_C1(val); |
| /* If ramp is not complete, give additional 5ms */ |
| if ((c1 < 2) && x1) |
| usleep_range(5000, 5050); |
| |
| if (!c1 || !x1) { |
| dev_dbg(wcd9xxx->dev, |
| "%s: Impedance detect ramp error, c1=%d, x1=0x%x\n", |
| __func__, c1, x1); |
| goto ramp_down; |
| } |
| d1 = d1_a[c1]; |
| denom = (x1 * d1) - (1 << (14 - noff)); |
| if (denom > 0) |
| *zdet = (TAVIL_MBHC_ZDET_CONST * 1000) / denom; |
| else if (x1 < minCode_param[noff]) |
| *zdet = TAVIL_ZDET_FLOATING_IMPEDANCE; |
| |
| dev_dbg(wcd9xxx->dev, "%s: d1=%d, c1=%d, x1=0x%x, z_val=%d(milliOhm)\n", |
| __func__, d1, c1, x1, *zdet); |
| ramp_down: |
| i = 0; |
| while (x1) { |
| regmap_bulk_read(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_RESULT_1, (u8 *)&val, 2); |
| x1 = TAVIL_MBHC_GET_X1(val); |
| i++; |
| if (i == TAVIL_ZDET_NUM_MEASUREMENTS) |
| break; |
| } |
| } |
| |
| static void tavil_mbhc_zdet_ramp(struct snd_soc_codec *codec, |
| struct tavil_mbhc_zdet_param *zdet_param, |
| int32_t *zl, int32_t *zr, s16 *d1_a) |
| { |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| int32_t zdet = 0; |
| |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_ZDET_ANA_CTL, 0x70, |
| zdet_param->ldo_ctl << 4); |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_BTN5, 0xFC, |
| zdet_param->btn5); |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_BTN6, 0xFC, |
| zdet_param->btn6); |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_BTN7, 0xFC, |
| zdet_param->btn7); |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_ZDET_ANA_CTL, 0x0F, |
| zdet_param->noff); |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_ZDET_RAMP_CTL, 0x0F, |
| zdet_param->nshift); |
| |
| if (!zl) |
| goto z_right; |
| /* Start impedance measurement for HPH_L */ |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_ZDET, 0x80, 0x80); |
| dev_dbg(wcd9xxx->dev, "%s: ramp for HPH_L, noff = %d\n", |
| __func__, zdet_param->noff); |
| tavil_mbhc_get_result_params(wcd9xxx, d1_a, zdet_param->noff, &zdet); |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_ZDET, 0x80, 0x00); |
| |
| *zl = zdet; |
| |
| z_right: |
| if (!zr) |
| return; |
| /* Start impedance measurement for HPH_R */ |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_ZDET, 0x40, 0x40); |
| dev_dbg(wcd9xxx->dev, "%s: ramp for HPH_R, noff = %d\n", |
| __func__, zdet_param->noff); |
| tavil_mbhc_get_result_params(wcd9xxx, d1_a, zdet_param->noff, &zdet); |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_ZDET, 0x40, 0x00); |
| |
| *zr = zdet; |
| } |
| |
| static inline void tavil_wcd_mbhc_qfuse_cal(struct snd_soc_codec *codec, |
| int32_t *z_val, int flag_l_r) |
| { |
| s16 q1; |
| int q1_cal; |
| |
| if (*z_val < (TAVIL_ZDET_VAL_400/1000)) |
| q1 = snd_soc_read(codec, |
| WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT1 + (2 * flag_l_r)); |
| else |
| q1 = snd_soc_read(codec, |
| WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT2 + (2 * flag_l_r)); |
| if (q1 & 0x80) |
| q1_cal = (10000 - ((q1 & 0x7F) * 25)); |
| else |
| q1_cal = (10000 + (q1 * 25)); |
| if (q1_cal > 0) |
| *z_val = ((*z_val) * 10000) / q1_cal; |
| } |
| |
| static void tavil_wcd_mbhc_calc_impedance(struct wcd_mbhc *mbhc, uint32_t *zl, |
| uint32_t *zr) |
| { |
| struct snd_soc_codec *codec = mbhc->codec; |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| s16 reg0, reg1, reg2, reg3, reg4; |
| int32_t z1L, z1R, z1Ls; |
| int zMono, z_diff1, z_diff2; |
| bool is_fsm_disable = false; |
| struct tavil_mbhc_zdet_param zdet_param[] = { |
| {4, 0, 4, 0x08, 0x14, 0x18}, /* < 32ohm */ |
| {2, 0, 3, 0x18, 0x7C, 0x90}, /* 32ohm < Z < 400ohm */ |
| {1, 4, 5, 0x18, 0x7C, 0x90}, /* 400ohm < Z < 1200ohm */ |
| {1, 6, 7, 0x18, 0x7C, 0x90}, /* >1200ohm */ |
| }; |
| struct tavil_mbhc_zdet_param *zdet_param_ptr = NULL; |
| s16 d1_a[][4] = { |
| {0, 30, 90, 30}, |
| {0, 30, 30, 5}, |
| {0, 30, 30, 5}, |
| {0, 30, 30, 5}, |
| }; |
| s16 *d1 = NULL; |
| |
| WCD_MBHC_RSC_ASSERT_LOCKED(mbhc); |
| |
| reg0 = snd_soc_read(codec, WCD934X_ANA_MBHC_BTN5); |
| reg1 = snd_soc_read(codec, WCD934X_ANA_MBHC_BTN6); |
| reg2 = snd_soc_read(codec, WCD934X_ANA_MBHC_BTN7); |
| reg3 = snd_soc_read(codec, WCD934X_MBHC_CTL_CLK); |
| reg4 = snd_soc_read(codec, WCD934X_MBHC_NEW_ZDET_ANA_CTL); |
| |
| if (snd_soc_read(codec, WCD934X_ANA_MBHC_ELECT) & 0x80) { |
| is_fsm_disable = true; |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_ELECT, 0x80, 0x00); |
| } |
| |
| /* For NO-jack, disable L_DET_EN before Z-det measurements */ |
| if (mbhc->hphl_swh) |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_MECH, 0x80, 0x00); |
| |
| /* Turn off 100k pull down on HPHL */ |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_MECH, 0x01, 0x00); |
| |
| /* First get impedance on Left */ |
| d1 = d1_a[1]; |
| zdet_param_ptr = &zdet_param[1]; |
| tavil_mbhc_zdet_ramp(codec, zdet_param_ptr, &z1L, NULL, d1); |
| |
| if (!TAVIL_MBHC_IS_SECOND_RAMP_REQUIRED(z1L)) |
| goto left_ch_impedance; |
| |
| /* Second ramp for left ch */ |
| if (z1L < TAVIL_ZDET_VAL_32) { |
| zdet_param_ptr = &zdet_param[0]; |
| d1 = d1_a[0]; |
| } else if ((z1L > TAVIL_ZDET_VAL_400) && (z1L <= TAVIL_ZDET_VAL_1200)) { |
| zdet_param_ptr = &zdet_param[2]; |
| d1 = d1_a[2]; |
| } else if (z1L > TAVIL_ZDET_VAL_1200) { |
| zdet_param_ptr = &zdet_param[3]; |
| d1 = d1_a[3]; |
| } |
| tavil_mbhc_zdet_ramp(codec, zdet_param_ptr, &z1L, NULL, d1); |
| |
| left_ch_impedance: |
| if ((z1L == TAVIL_ZDET_FLOATING_IMPEDANCE) || |
| (z1L > TAVIL_ZDET_VAL_100K)) { |
| *zl = TAVIL_ZDET_FLOATING_IMPEDANCE; |
| zdet_param_ptr = &zdet_param[1]; |
| d1 = d1_a[1]; |
| } else { |
| *zl = z1L/1000; |
| tavil_wcd_mbhc_qfuse_cal(codec, zl, 0); |
| } |
| dev_dbg(codec->dev, "%s: impedance on HPH_L = %d(ohms)\n", |
| __func__, *zl); |
| |
| /* Start of right impedance ramp and calculation */ |
| tavil_mbhc_zdet_ramp(codec, zdet_param_ptr, NULL, &z1R, d1); |
| if (TAVIL_MBHC_IS_SECOND_RAMP_REQUIRED(z1R)) { |
| if (((z1R > TAVIL_ZDET_VAL_1200) && |
| (zdet_param_ptr->noff == 0x6)) || |
| ((*zl) != TAVIL_ZDET_FLOATING_IMPEDANCE)) |
| goto right_ch_impedance; |
| /* Second ramp for right ch */ |
| if (z1R < TAVIL_ZDET_VAL_32) { |
| zdet_param_ptr = &zdet_param[0]; |
| d1 = d1_a[0]; |
| } else if ((z1R > TAVIL_ZDET_VAL_400) && |
| (z1R <= TAVIL_ZDET_VAL_1200)) { |
| zdet_param_ptr = &zdet_param[2]; |
| d1 = d1_a[2]; |
| } else if (z1R > TAVIL_ZDET_VAL_1200) { |
| zdet_param_ptr = &zdet_param[3]; |
| d1 = d1_a[3]; |
| } |
| tavil_mbhc_zdet_ramp(codec, zdet_param_ptr, NULL, &z1R, d1); |
| } |
| right_ch_impedance: |
| if ((z1R == TAVIL_ZDET_FLOATING_IMPEDANCE) || |
| (z1R > TAVIL_ZDET_VAL_100K)) { |
| *zr = TAVIL_ZDET_FLOATING_IMPEDANCE; |
| } else { |
| *zr = z1R/1000; |
| tavil_wcd_mbhc_qfuse_cal(codec, zr, 1); |
| } |
| dev_dbg(codec->dev, "%s: impedance on HPH_R = %d(ohms)\n", |
| __func__, *zr); |
| |
| /* Mono/stereo detection */ |
| if ((*zl == TAVIL_ZDET_FLOATING_IMPEDANCE) && |
| (*zr == TAVIL_ZDET_FLOATING_IMPEDANCE)) { |
| dev_dbg(codec->dev, |
| "%s: plug type is invalid or extension cable\n", |
| __func__); |
| goto zdet_complete; |
| } |
| if ((*zl == TAVIL_ZDET_FLOATING_IMPEDANCE) || |
| (*zr == TAVIL_ZDET_FLOATING_IMPEDANCE) || |
| ((*zl < WCD_MONO_HS_MIN_THR) && (*zr > WCD_MONO_HS_MIN_THR)) || |
| ((*zl > WCD_MONO_HS_MIN_THR) && (*zr < WCD_MONO_HS_MIN_THR))) { |
| dev_dbg(codec->dev, |
| "%s: Mono plug type with one ch floating or shorted to GND\n", |
| __func__); |
| mbhc->hph_type = WCD_MBHC_HPH_MONO; |
| goto zdet_complete; |
| } |
| snd_soc_update_bits(codec, WCD934X_HPH_R_ATEST, 0x02, 0x02); |
| snd_soc_update_bits(codec, WCD934X_HPH_PA_CTL2, 0x40, 0x01); |
| if (*zl < (TAVIL_ZDET_VAL_32/1000)) |
| tavil_mbhc_zdet_ramp(codec, &zdet_param[0], &z1Ls, NULL, d1); |
| else |
| tavil_mbhc_zdet_ramp(codec, &zdet_param[1], &z1Ls, NULL, d1); |
| snd_soc_update_bits(codec, WCD934X_HPH_PA_CTL2, 0x40, 0x00); |
| snd_soc_update_bits(codec, WCD934X_HPH_R_ATEST, 0x02, 0x00); |
| z1Ls /= 1000; |
| tavil_wcd_mbhc_qfuse_cal(codec, &z1Ls, 0); |
| /* Parallel of left Z and 9 ohm pull down resistor */ |
| zMono = ((*zl) * 9) / ((*zl) + 9); |
| z_diff1 = (z1Ls > zMono) ? (z1Ls - zMono) : (zMono - z1Ls); |
| z_diff2 = ((*zl) > z1Ls) ? ((*zl) - z1Ls) : (z1Ls - (*zl)); |
| if ((z_diff1 * (*zl + z1Ls)) > (z_diff2 * (z1Ls + zMono))) { |
| dev_dbg(codec->dev, "%s: stereo plug type detected\n", |
| __func__); |
| mbhc->hph_type = WCD_MBHC_HPH_STEREO; |
| } else { |
| dev_dbg(codec->dev, "%s: MONO plug type detected\n", |
| __func__); |
| mbhc->hph_type = WCD_MBHC_HPH_MONO; |
| } |
| |
| zdet_complete: |
| snd_soc_write(codec, WCD934X_ANA_MBHC_BTN5, reg0); |
| snd_soc_write(codec, WCD934X_ANA_MBHC_BTN6, reg1); |
| snd_soc_write(codec, WCD934X_ANA_MBHC_BTN7, reg2); |
| /* Turn on 100k pull down on HPHL */ |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_MECH, 0x01, 0x01); |
| |
| /* For NO-jack, re-enable L_DET_EN after Z-det measurements */ |
| if (mbhc->hphl_swh) |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_MECH, 0x80, 0x80); |
| |
| snd_soc_write(codec, WCD934X_MBHC_NEW_ZDET_ANA_CTL, reg4); |
| snd_soc_write(codec, WCD934X_MBHC_CTL_CLK, reg3); |
| if (is_fsm_disable) |
| regmap_update_bits(wcd9xxx->regmap, |
| WCD934X_ANA_MBHC_ELECT, 0x80, 0x80); |
| } |
| |
| static void tavil_mbhc_gnd_det_ctrl(struct snd_soc_codec *codec, bool enable) |
| { |
| if (enable) { |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_MECH, |
| 0x02, 0x02); |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_MECH, |
| 0x40, 0x40); |
| } else { |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_MECH, |
| 0x40, 0x00); |
| snd_soc_update_bits(codec, WCD934X_ANA_MBHC_MECH, |
| 0x02, 0x00); |
| } |
| } |
| |
| static void tavil_mbhc_hph_pull_down_ctrl(struct snd_soc_codec *codec, |
| bool enable) |
| { |
| if (enable) { |
| snd_soc_update_bits(codec, WCD934X_HPH_PA_CTL2, |
| 0x40, 0x40); |
| snd_soc_update_bits(codec, WCD934X_HPH_PA_CTL2, |
| 0x10, 0x10); |
| } else { |
| snd_soc_update_bits(codec, WCD934X_HPH_PA_CTL2, |
| 0x40, 0x00); |
| snd_soc_update_bits(codec, WCD934X_HPH_PA_CTL2, |
| 0x10, 0x00); |
| } |
| } |
| static void tavil_mbhc_moisture_config(struct wcd_mbhc *mbhc) |
| { |
| struct snd_soc_codec *codec = mbhc->codec; |
| |
| if ((mbhc->moist_rref == R_OFF) || |
| (mbhc->mbhc_cfg->enable_usbc_analog)) { |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_CTL_2, |
| 0x0C, R_OFF << 2); |
| return; |
| } |
| |
| /* Donot enable moisture detection if jack type is NC */ |
| if (!mbhc->hphl_swh) { |
| dev_dbg(codec->dev, "%s: disable moisture detection for NC\n", |
| __func__); |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_CTL_2, |
| 0x0C, R_OFF << 2); |
| return; |
| } |
| |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_CTL_2, |
| 0x0C, mbhc->moist_rref << 2); |
| } |
| |
| static bool tavil_hph_register_recovery(struct wcd_mbhc *mbhc) |
| { |
| struct snd_soc_codec *codec = mbhc->codec; |
| struct wcd934x_mbhc *wcd934x_mbhc = tavil_soc_get_mbhc(codec); |
| |
| if (!wcd934x_mbhc) |
| return false; |
| |
| wcd934x_mbhc->is_hph_recover = false; |
| snd_soc_dapm_force_enable_pin(snd_soc_codec_get_dapm(codec), |
| "RESET_HPH_REGISTERS"); |
| snd_soc_dapm_sync(snd_soc_codec_get_dapm(codec)); |
| |
| snd_soc_dapm_disable_pin(snd_soc_codec_get_dapm(codec), |
| "RESET_HPH_REGISTERS"); |
| snd_soc_dapm_sync(snd_soc_codec_get_dapm(codec)); |
| |
| return wcd934x_mbhc->is_hph_recover; |
| } |
| |
| static void tavil_update_anc_state(struct snd_soc_codec *codec, bool enable, |
| int anc_num) |
| { |
| if (enable) |
| snd_soc_update_bits(codec, WCD934X_CDC_RX1_RX_PATH_CFG0 + |
| (20 * anc_num), 0x10, 0x10); |
| else |
| snd_soc_update_bits(codec, WCD934X_CDC_RX1_RX_PATH_CFG0 + |
| (20 * anc_num), 0x10, 0x00); |
| } |
| |
| static bool tavil_is_anc_on(struct wcd_mbhc *mbhc) |
| { |
| bool anc_on = false; |
| u16 ancl, ancr; |
| |
| ancl = |
| (snd_soc_read(mbhc->codec, WCD934X_CDC_RX1_RX_PATH_CFG0)) & 0x10; |
| ancr = |
| (snd_soc_read(mbhc->codec, WCD934X_CDC_RX2_RX_PATH_CFG0)) & 0x10; |
| |
| anc_on = !!(ancl | ancr); |
| |
| return anc_on; |
| } |
| |
| static const struct wcd_mbhc_cb mbhc_cb = { |
| .request_irq = tavil_mbhc_request_irq, |
| .irq_control = tavil_mbhc_irq_control, |
| .free_irq = tavil_mbhc_free_irq, |
| .clk_setup = tavil_mbhc_clk_setup, |
| .map_btn_code_to_num = tavil_mbhc_btn_to_num, |
| .enable_mb_source = tavil_enable_ext_mb_source, |
| .mbhc_bias = tavil_mbhc_mbhc_bias_control, |
| .set_btn_thr = tavil_mbhc_program_btn_thr, |
| .lock_sleep = tavil_mbhc_lock_sleep, |
| .register_notifier = tavil_mbhc_register_notifier, |
| .micbias_enable_status = tavil_mbhc_micb_en_status, |
| .hph_pa_on_status = tavil_mbhc_hph_pa_on_status, |
| .hph_pull_up_control = tavil_mbhc_hph_l_pull_up_control, |
| .mbhc_micbias_control = tavil_mbhc_request_micbias, |
| .mbhc_micb_ramp_control = tavil_mbhc_micb_ramp_control, |
| .get_hwdep_fw_cal = tavil_get_hwdep_fw_cal, |
| .mbhc_micb_ctrl_thr_mic = tavil_mbhc_micb_ctrl_threshold_mic, |
| .compute_impedance = tavil_wcd_mbhc_calc_impedance, |
| .mbhc_gnd_det_ctrl = tavil_mbhc_gnd_det_ctrl, |
| .hph_pull_down_ctrl = tavil_mbhc_hph_pull_down_ctrl, |
| .mbhc_moisture_config = tavil_mbhc_moisture_config, |
| .hph_register_recovery = tavil_hph_register_recovery, |
| .update_anc_state = tavil_update_anc_state, |
| .is_anc_on = tavil_is_anc_on, |
| }; |
| |
| static struct regulator *tavil_codec_find_ondemand_regulator( |
| struct snd_soc_codec *codec, const char *name) |
| { |
| int i; |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| struct wcd9xxx_pdata *pdata = dev_get_platdata(codec->dev->parent); |
| |
| for (i = 0; i < wcd9xxx->num_of_supplies; ++i) { |
| if (pdata->regulator[i].ondemand && |
| wcd9xxx->supplies[i].supply && |
| !strcmp(wcd9xxx->supplies[i].supply, name)) |
| return wcd9xxx->supplies[i].consumer; |
| } |
| |
| dev_dbg(codec->dev, "Warning: regulator not found:%s\n", |
| name); |
| return NULL; |
| } |
| |
| static int tavil_get_hph_type(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wcd934x_mbhc *wcd934x_mbhc = tavil_soc_get_mbhc(codec); |
| struct wcd_mbhc *mbhc; |
| |
| if (!wcd934x_mbhc) { |
| dev_err(codec->dev, "%s: mbhc not initialized!\n", __func__); |
| return -EINVAL; |
| } |
| |
| mbhc = &wcd934x_mbhc->wcd_mbhc; |
| |
| ucontrol->value.integer.value[0] = (u32) mbhc->hph_type; |
| dev_dbg(codec->dev, "%s: hph_type = %u\n", __func__, mbhc->hph_type); |
| |
| return 0; |
| } |
| |
| static int tavil_hph_impedance_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| uint32_t zl, zr; |
| bool hphr; |
| struct soc_multi_mixer_control *mc; |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wcd934x_mbhc *wcd934x_mbhc = tavil_soc_get_mbhc(codec); |
| |
| if (!wcd934x_mbhc) { |
| dev_err(codec->dev, "%s: mbhc not initialized!\n", __func__); |
| return -EINVAL; |
| } |
| |
| mc = (struct soc_multi_mixer_control *)(kcontrol->private_value); |
| hphr = mc->shift; |
| wcd_mbhc_get_impedance(&wcd934x_mbhc->wcd_mbhc, &zl, &zr); |
| dev_dbg(codec->dev, "%s: zl=%u(ohms), zr=%u(ohms)\n", __func__, zl, zr); |
| ucontrol->value.integer.value[0] = hphr ? zr : zl; |
| |
| return 0; |
| } |
| |
| static const struct snd_kcontrol_new hph_type_detect_controls[] = { |
| SOC_SINGLE_EXT("HPH Type", 0, 0, UINT_MAX, 0, |
| tavil_get_hph_type, NULL), |
| }; |
| |
| static const struct snd_kcontrol_new impedance_detect_controls[] = { |
| SOC_SINGLE_EXT("HPHL Impedance", 0, 0, UINT_MAX, 0, |
| tavil_hph_impedance_get, NULL), |
| SOC_SINGLE_EXT("HPHR Impedance", 0, 1, UINT_MAX, 0, |
| tavil_hph_impedance_get, NULL), |
| }; |
| |
| /* |
| * tavil_mbhc_get_impedance: get impedance of headphone left and right channels |
| * @wcd934x_mbhc: handle to struct wcd934x_mbhc * |
| * @zl: handle to left-ch impedance |
| * @zr: handle to right-ch impedance |
| * return 0 for success or error code in case of failure |
| */ |
| int tavil_mbhc_get_impedance(struct wcd934x_mbhc *wcd934x_mbhc, |
| uint32_t *zl, uint32_t *zr) |
| { |
| if (!wcd934x_mbhc) { |
| pr_err("%s: mbhc not initialized!\n", __func__); |
| return -EINVAL; |
| } |
| if (!zl || !zr) { |
| pr_err("%s: zl or zr null!\n", __func__); |
| return -EINVAL; |
| } |
| |
| return wcd_mbhc_get_impedance(&wcd934x_mbhc->wcd_mbhc, zl, zr); |
| } |
| EXPORT_SYMBOL(tavil_mbhc_get_impedance); |
| |
| /* |
| * tavil_mbhc_hs_detect: starts mbhc insertion/removal functionality |
| * @codec: handle to snd_soc_codec * |
| * @mbhc_cfg: handle to mbhc configuration structure |
| * return 0 if mbhc_start is success or error code in case of failure |
| */ |
| int tavil_mbhc_hs_detect(struct snd_soc_codec *codec, |
| struct wcd_mbhc_config *mbhc_cfg) |
| { |
| struct wcd934x_mbhc *wcd934x_mbhc = tavil_soc_get_mbhc(codec); |
| |
| if (!wcd934x_mbhc) { |
| dev_err(codec->dev, "%s: mbhc not initialized!\n", __func__); |
| return -EINVAL; |
| } |
| |
| return wcd_mbhc_start(&wcd934x_mbhc->wcd_mbhc, mbhc_cfg); |
| } |
| EXPORT_SYMBOL(tavil_mbhc_hs_detect); |
| |
| /* |
| * tavil_mbhc_hs_detect_exit: stop mbhc insertion/removal functionality |
| * @codec: handle to snd_soc_codec * |
| */ |
| void tavil_mbhc_hs_detect_exit(struct snd_soc_codec *codec) |
| { |
| struct wcd934x_mbhc *wcd934x_mbhc = tavil_soc_get_mbhc(codec); |
| |
| if (!wcd934x_mbhc) { |
| dev_err(codec->dev, "%s: mbhc not initialized!\n", __func__); |
| return; |
| } |
| wcd_mbhc_stop(&wcd934x_mbhc->wcd_mbhc); |
| } |
| EXPORT_SYMBOL(tavil_mbhc_hs_detect_exit); |
| |
| /* |
| * tavil_mbhc_post_ssr_init: initialize mbhc for tavil post subsystem restart |
| * @mbhc: poniter to wcd934x_mbhc structure |
| * @codec: handle to snd_soc_codec * |
| * |
| * return 0 if mbhc_init is success or error code in case of failure |
| */ |
| int tavil_mbhc_post_ssr_init(struct wcd934x_mbhc *mbhc, |
| struct snd_soc_codec *codec) |
| { |
| int ret; |
| struct wcd_mbhc *wcd_mbhc; |
| |
| if (!mbhc || !codec) |
| return -EINVAL; |
| |
| wcd_mbhc = &mbhc->wcd_mbhc; |
| if (wcd_mbhc == NULL) { |
| pr_err("%s: wcd_mbhc is NULL\n", __func__); |
| return -EINVAL; |
| } |
| |
| wcd_mbhc_deinit(wcd_mbhc); |
| ret = wcd_mbhc_init(wcd_mbhc, codec, &mbhc_cb, &intr_ids, |
| wcd_mbhc_registers, TAVIL_ZDET_SUPPORTED); |
| if (ret) { |
| dev_err(codec->dev, "%s: mbhc initialization failed\n", |
| __func__); |
| goto done; |
| } |
| if (wcd_mbhc->mbhc_detection_logic == WCD_DETECTION_LEGACY) { |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_CTL_1, 0x04, 0x04); |
| snd_soc_update_bits(codec, WCD934X_MBHC_CTL_BCS, 0x01, 0x01); |
| } |
| |
| done: |
| return ret; |
| } |
| EXPORT_SYMBOL(tavil_mbhc_post_ssr_init); |
| |
| /* |
| * tavil_mbhc_init: initialize mbhc for tavil |
| * @mbhc: poniter to wcd934x_mbhc struct pointer to store the configs |
| * @codec: handle to snd_soc_codec * |
| * @fw_data: handle to firmware data |
| * |
| * return 0 if mbhc_init is success or error code in case of failure |
| */ |
| int tavil_mbhc_init(struct wcd934x_mbhc **mbhc, struct snd_soc_codec *codec, |
| struct fw_info *fw_data) |
| { |
| struct regulator *supply; |
| struct wcd934x_mbhc *wcd934x_mbhc; |
| struct wcd_mbhc *wcd_mbhc; |
| int ret; |
| |
| wcd934x_mbhc = devm_kzalloc(codec->dev, sizeof(struct wcd934x_mbhc), |
| GFP_KERNEL); |
| if (!wcd934x_mbhc) |
| return -ENOMEM; |
| |
| wcd934x_mbhc->wcd9xxx = dev_get_drvdata(codec->dev->parent); |
| wcd934x_mbhc->fw_data = fw_data; |
| BLOCKING_INIT_NOTIFIER_HEAD(&wcd934x_mbhc->notifier); |
| wcd_mbhc = &wcd934x_mbhc->wcd_mbhc; |
| if (wcd_mbhc == NULL) { |
| pr_err("%s: wcd_mbhc is NULL\n", __func__); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| |
| /* Setting default mbhc detection logic to ADC for Tavil */ |
| wcd_mbhc->mbhc_detection_logic = WCD_DETECTION_ADC; |
| |
| ret = wcd_mbhc_init(wcd_mbhc, codec, &mbhc_cb, |
| &intr_ids, wcd_mbhc_registers, |
| TAVIL_ZDET_SUPPORTED); |
| if (ret) { |
| dev_err(codec->dev, "%s: mbhc initialization failed\n", |
| __func__); |
| goto err; |
| } |
| |
| supply = tavil_codec_find_ondemand_regulator(codec, |
| on_demand_supply_name[WCD934X_ON_DEMAND_MICBIAS]); |
| if (supply) { |
| wcd934x_mbhc->on_demand_list[ |
| WCD934X_ON_DEMAND_MICBIAS].supply = |
| supply; |
| wcd934x_mbhc->on_demand_list[ |
| WCD934X_ON_DEMAND_MICBIAS].ondemand_supply_count = |
| 0; |
| } |
| |
| (*mbhc) = wcd934x_mbhc; |
| snd_soc_add_codec_controls(codec, impedance_detect_controls, |
| ARRAY_SIZE(impedance_detect_controls)); |
| snd_soc_add_codec_controls(codec, hph_type_detect_controls, |
| ARRAY_SIZE(hph_type_detect_controls)); |
| |
| if (wcd_mbhc->mbhc_detection_logic == WCD_DETECTION_LEGACY) { |
| snd_soc_update_bits(codec, WCD934X_MBHC_NEW_CTL_1, 0x04, 0x04); |
| snd_soc_update_bits(codec, WCD934X_MBHC_CTL_BCS, 0x01, 0x01); |
| } |
| |
| return 0; |
| err: |
| devm_kfree(codec->dev, wcd934x_mbhc); |
| return ret; |
| } |
| EXPORT_SYMBOL(tavil_mbhc_init); |
| |
| /* |
| * tavil_mbhc_deinit: deinitialize mbhc for tavil |
| * @codec: handle to snd_soc_codec * |
| */ |
| void tavil_mbhc_deinit(struct snd_soc_codec *codec) |
| { |
| struct wcd934x_mbhc *wcd934x_mbhc = tavil_soc_get_mbhc(codec); |
| |
| if (wcd934x_mbhc) { |
| wcd_mbhc_deinit(&wcd934x_mbhc->wcd_mbhc); |
| devm_kfree(codec->dev, wcd934x_mbhc); |
| } |
| } |
| EXPORT_SYMBOL(tavil_mbhc_deinit); |