/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wcd934x.h" #include "wcd934x-mbhc.h" #include #include "wcd934x_irq.h" #include "../core.h" #include "../pdata.h" #include "../wcd9xxx-irq.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);