| /* |
| * extcon-arizona.c - Extcon driver Wolfson Arizona devices |
| * |
| * Copyright (C) 2012 Wolfson Microelectronics plc |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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/kernel.h> |
| #include <linux/module.h> |
| #include <linux/i2c.h> |
| #include <linux/slab.h> |
| #include <linux/interrupt.h> |
| #include <linux/err.h> |
| #include <linux/gpio.h> |
| #include <linux/input.h> |
| #include <linux/platform_device.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/switch.h> |
| #include <linux/of.h> |
| #include <linux/device.h> |
| #include <linux/delay.h> |
| #include <linux/regmap.h> |
| |
| #include <sound/soc.h> |
| |
| #include <linux/mfd/arizona/core.h> |
| #include <linux/mfd/arizona/pdata.h> |
| #include <linux/mfd/arizona/registers.h> |
| |
| #define ARIZONA_MAX_MICD_RANGE 8 |
| |
| #define ARIZONA_ACCDET_MODE_MIC 0 |
| #define ARIZONA_ACCDET_MODE_HPL 1 |
| #define ARIZONA_ACCDET_MODE_HPR 2 |
| #define ARIZONA_ACCDET_MODE_HPM 4 |
| #define ARIZONA_ACCDET_MODE_ADC 7 |
| |
| #define ARIZONA_HPDET_MAX 10000 |
| |
| #define HPDET_DEBOUNCE 500 |
| #define DEFAULT_MICD_TIMEOUT 2000 |
| |
| #define QUICK_HEADPHONE_MAX_OHM 3 |
| #define MICROPHONE_MIN_OHM 1257 |
| #define MICROPHONE_MAX_OHM 30000 |
| |
| #define HP_NORMAL_IMPEDANCE 0 |
| #define HP_LOW_IMPEDANCE 1 |
| |
| enum { |
| MICD_LVL_1_TO_7 = ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | |
| ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | |
| ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | |
| ARIZONA_MICD_LVL_7, |
| |
| MICD_LVL_0_TO_7 = ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7, |
| |
| MICD_LVL_0_TO_8 = MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8, |
| }; |
| |
| struct arizona_extcon_info { |
| struct device *dev; |
| struct arizona *arizona; |
| struct mutex lock; |
| struct regulator *micvdd; |
| struct input_dev *input; |
| |
| u16 last_jackdet; |
| |
| int micd_mode; |
| const struct arizona_micd_config *micd_modes; |
| int micd_num_modes; |
| |
| const struct arizona_micd_range *micd_ranges; |
| int num_micd_ranges; |
| |
| int micd_timeout; |
| |
| bool micd_reva; |
| bool micd_clamp; |
| |
| bool micd_manual_debounce; |
| unsigned int micd_res_old; |
| unsigned int micd_res[4]; |
| int micd_current; |
| |
| struct delayed_work hpdet_work; |
| struct delayed_work micd_detect_work; |
| struct delayed_work micd_timeout_work; |
| struct delayed_work micd_clear_work; |
| bool first_clear; |
| |
| bool hpdet_active; |
| bool hpdet_done; |
| bool hpdet_retried; |
| int hp_imp_level; |
| |
| int num_hpdet_res; |
| unsigned int hpdet_res[3]; |
| |
| bool mic; |
| bool detecting; |
| int jack_flips; |
| bool cable; |
| |
| int hpdet_ip; |
| |
| struct switch_dev edev; |
| }; |
| |
| static const struct arizona_micd_config micd_default_modes[] = { |
| { ARIZONA_ACCDET_SRC, 1, 0 }, |
| { 0, 2, 1 }, |
| }; |
| |
| static const struct arizona_micd_range micd_default_ranges[] = { |
| { .max = 11, .key = BTN_0 }, |
| { .max = 28, .key = BTN_1 }, |
| { .max = 54, .key = BTN_2 }, |
| { .max = 100, .key = BTN_3 }, |
| { .max = 186, .key = BTN_4 }, |
| { .max = 430, .key = BTN_5 }, |
| }; |
| |
| /* The number of levels in arizona_micd_levels valid for button thresholds */ |
| #define ARIZONA_NUM_MICD_BUTTON_LEVELS 64 |
| |
| static const int arizona_micd_levels[] = { |
| 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46, |
| 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100, |
| 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245, |
| 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071, |
| 1257, 30000, |
| }; |
| |
| static const int arizona_micd_rates[] = { |
| 0, 250, 500, 1000, 2000, 4000, 8000, 16000, 32000, 64000, 128000, 256000, |
| }; |
| |
| /* These values are copied from Android WiredAccessoryObserver */ |
| enum headset_state { |
| BIT_NO_HEADSET = 0, |
| BIT_HEADSET = (1 << 0), |
| BIT_HEADSET_NO_MIC = (1 << 1), |
| }; |
| |
| static ssize_t arizona_extcon_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf); |
| DEVICE_ATTR(hp_impedance, S_IRUGO, arizona_extcon_show, NULL); |
| |
| static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info); |
| |
| static void arizona_extcon_do_magic(struct arizona_extcon_info *info, |
| unsigned int magic) |
| { |
| struct arizona *arizona = info->arizona; |
| unsigned int mask = 0, val = 0; |
| int ret; |
| |
| switch (arizona->type) { |
| case WM8280: |
| case WM5110: |
| mask = 0x0007; |
| if (magic) |
| val = 0x0001; |
| else |
| val = 0x0006; |
| break; |
| default: |
| mask = 0x4000; |
| if (magic) |
| val = 0x4000; |
| break; |
| }; |
| |
| mutex_lock(&arizona->dapm->card->dapm_mutex); |
| |
| arizona->hpdet_magic = magic; |
| |
| /* Keep the HP output stages disabled while doing the magic */ |
| if (magic) { |
| ret = regmap_update_bits(arizona->regmap, |
| ARIZONA_OUTPUT_ENABLES_1, |
| ARIZONA_OUT1L_ENA | |
| ARIZONA_OUT1R_ENA, 0); |
| if (ret != 0) |
| dev_warn(arizona->dev, |
| "Failed to disable headphone outputs: %d\n", |
| ret); |
| } |
| |
| ret = regmap_update_bits(arizona->regmap, 0x225, mask, val); |
| if (ret != 0) |
| dev_warn(arizona->dev, "Failed to do magic: %d\n", |
| ret); |
| |
| ret = regmap_update_bits(arizona->regmap, 0x226, mask, val); |
| if (ret != 0) |
| dev_warn(arizona->dev, "Failed to do magic: %d\n", |
| ret); |
| |
| /* Restore the desired state while not doing the magic */ |
| if (!magic && arizona->hp_impedance > ARIZONA_HP_SHORT_IMPEDANCE) { |
| ret = regmap_update_bits(arizona->regmap, |
| ARIZONA_OUTPUT_ENABLES_1, |
| ARIZONA_OUT1L_ENA | |
| ARIZONA_OUT1R_ENA, arizona->hp_ena); |
| if (ret != 0) |
| dev_warn(arizona->dev, |
| "Failed to restore headphone outputs: %d\n", |
| ret); |
| } |
| |
| mutex_unlock(&arizona->dapm->card->dapm_mutex); |
| } |
| |
| static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) |
| { |
| struct arizona *arizona = info->arizona; |
| |
| mode %= info->micd_num_modes; |
| |
| if (arizona->pdata.micd_pol_gpio > 0) |
| gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio, |
| info->micd_modes[mode].gpio); |
| regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_BIAS_SRC_MASK, |
| info->micd_modes[mode].bias << |
| ARIZONA_MICD_BIAS_SRC_SHIFT); |
| regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_SRC, info->micd_modes[mode].src); |
| |
| info->micd_mode = mode; |
| |
| dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode); |
| } |
| |
| static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info) |
| { |
| switch (info->micd_modes[0].bias) { |
| case 1: |
| return "MICBIAS1"; |
| case 2: |
| return "MICBIAS2"; |
| case 3: |
| return "MICBIAS3"; |
| default: |
| return "MICVDD"; |
| } |
| } |
| |
| static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info) |
| { |
| struct arizona *arizona = info->arizona; |
| const char *widget = arizona_extcon_get_micbias(info); |
| struct snd_soc_dapm_context *dapm = arizona->dapm; |
| int ret; |
| |
| mutex_lock(&dapm->card->dapm_mutex); |
| |
| ret = snd_soc_dapm_force_enable_pin(dapm, widget); |
| if (ret != 0) |
| dev_warn(arizona->dev, "Failed to enable %s: %d\n", |
| widget, ret); |
| |
| mutex_unlock(&dapm->card->dapm_mutex); |
| |
| snd_soc_dapm_sync(dapm); |
| |
| if (arizona->pdata.micd_force_micbias_initial && info->detecting) |
| return; |
| |
| if (!arizona->pdata.micd_force_micbias) { |
| mutex_lock(&dapm->card->dapm_mutex); |
| |
| ret = snd_soc_dapm_disable_pin(arizona->dapm, widget); |
| if (ret != 0) |
| dev_warn(arizona->dev, "Failed to disable %s: %d\n", |
| widget, ret); |
| |
| mutex_unlock(&dapm->card->dapm_mutex); |
| |
| snd_soc_dapm_sync(dapm); |
| } |
| } |
| |
| static void arizona_start_mic(struct arizona_extcon_info *info) |
| { |
| struct arizona *arizona = info->arizona; |
| bool change; |
| int ret; |
| unsigned int mode; |
| |
| /* Microphone detection can't use idle mode */ |
| pm_runtime_get(info->dev); |
| |
| if (info->detecting) { |
| ret = regulator_allow_bypass(info->micvdd, false); |
| if (ret != 0) { |
| dev_err(arizona->dev, |
| "Failed to regulate MICVDD: %d\n", |
| ret); |
| } |
| } |
| |
| ret = regulator_enable(info->micvdd); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to enable MICVDD: %d\n", |
| ret); |
| } |
| |
| if (info->micd_reva) { |
| regmap_write(arizona->regmap, 0x80, 0x3); |
| regmap_write(arizona->regmap, 0x294, 0); |
| regmap_write(arizona->regmap, 0x80, 0x0); |
| } |
| |
| if (info->detecting && arizona->pdata.micd_software_compare) |
| mode = ARIZONA_ACCDET_MODE_ADC; |
| else |
| mode = ARIZONA_ACCDET_MODE_MIC; |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_MODE_MASK, mode); |
| |
| arizona_extcon_pulse_micbias(info); |
| |
| regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, |
| &change); |
| if (!change) { |
| regulator_disable(info->micvdd); |
| pm_runtime_put_autosuspend(info->dev); |
| } |
| } |
| |
| static void arizona_stop_mic(struct arizona_extcon_info *info) |
| { |
| struct arizona *arizona = info->arizona; |
| const char *widget = arizona_extcon_get_micbias(info); |
| struct snd_soc_dapm_context *dapm = arizona->dapm; |
| bool change; |
| int ret; |
| |
| regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_ENA, 0, |
| &change); |
| |
| mutex_lock(&dapm->card->dapm_mutex); |
| |
| ret = snd_soc_dapm_disable_pin(dapm, widget); |
| if (ret != 0) |
| dev_warn(arizona->dev, |
| "Failed to disable %s: %d\n", |
| widget, ret); |
| |
| mutex_unlock(&dapm->card->dapm_mutex); |
| |
| snd_soc_dapm_sync(dapm); |
| |
| if (info->micd_reva) { |
| regmap_write(arizona->regmap, 0x80, 0x3); |
| regmap_write(arizona->regmap, 0x294, 2); |
| regmap_write(arizona->regmap, 0x80, 0x0); |
| } |
| |
| ret = regulator_allow_bypass(info->micvdd, true); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", |
| ret); |
| } |
| |
| if (change) { |
| regulator_disable(info->micvdd); |
| pm_runtime_mark_last_busy(info->dev); |
| pm_runtime_put_autosuspend(info->dev); |
| } |
| } |
| |
| static struct { |
| unsigned int threshold; |
| unsigned int factor_a; |
| unsigned int factor_b; |
| } arizona_hpdet_b_ranges[] = { |
| { 100, 5528, 362464 }, |
| { 169, 11084, 6186851 }, |
| { 169, 11065, 65460395 }, |
| }; |
| |
| static struct { |
| int min; |
| int max; |
| } arizona_hpdet_c_ranges[] = { |
| { 0, 30 }, |
| { 8, 100 }, |
| { 100, 1000 }, |
| { 1000, 10000 }, |
| }; |
| |
| static int arizona_hpdet_read(struct arizona_extcon_info *info) |
| { |
| struct arizona *arizona = info->arizona; |
| unsigned int val, range; |
| int ret; |
| |
| ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to read HPDET status: %d\n", |
| ret); |
| return ret; |
| } |
| |
| switch (info->hpdet_ip) { |
| case 0: |
| if (!(val & ARIZONA_HP_DONE)) { |
| dev_err(arizona->dev, "HPDET did not complete: %x\n", |
| val); |
| return -EAGAIN; |
| } |
| |
| val &= ARIZONA_HP_LVL_MASK; |
| break; |
| |
| case 1: |
| if (!(val & ARIZONA_HP_DONE_B)) { |
| dev_err(arizona->dev, "HPDET did not complete: %x\n", |
| val); |
| return -EAGAIN; |
| } |
| |
| ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to read HP value: %d\n", |
| ret); |
| return -EAGAIN; |
| } |
| |
| regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
| &range); |
| range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) |
| >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; |
| |
| if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 && |
| (val < arizona_hpdet_b_ranges[range].threshold || |
| val >= 0x3fb)) { |
| range++; |
| dev_dbg(arizona->dev, "Moving to HPDET range %d\n", |
| range); |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_HEADPHONE_DETECT_1, |
| ARIZONA_HP_IMPEDANCE_RANGE_MASK, |
| range << |
| ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); |
| return -EAGAIN; |
| } |
| |
| /* If we go out of range report top of range */ |
| if (val < arizona_hpdet_b_ranges[range].threshold || |
| val >= 0x3fb) { |
| dev_dbg(arizona->dev, "Measurement out of range\n"); |
| return ARIZONA_HPDET_MAX; |
| } |
| |
| dev_dbg(arizona->dev, "HPDET read %d in range %d\n", |
| val, range); |
| |
| val = arizona_hpdet_b_ranges[range].factor_b |
| / ((val * 100) - |
| arizona_hpdet_b_ranges[range].factor_a); |
| break; |
| |
| default: |
| dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n", |
| info->hpdet_ip); |
| case 2: |
| if (!(val & ARIZONA_HP_DONE_B)) { |
| dev_err(arizona->dev, "HPDET did not complete: %x\n", |
| val); |
| return -EAGAIN; |
| } |
| |
| val &= ARIZONA_HP_LVL_B_MASK; |
| val /= 2; |
| |
| regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
| &range); |
| range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) |
| >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; |
| |
| /* Skip up a range, or report? */ |
| if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 && |
| (val >= arizona_hpdet_c_ranges[range].max)) { |
| range++; |
| dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", |
| arizona_hpdet_c_ranges[range].min, |
| arizona_hpdet_c_ranges[range].max); |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_HEADPHONE_DETECT_1, |
| ARIZONA_HP_IMPEDANCE_RANGE_MASK, |
| range << |
| ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); |
| return -EAGAIN; |
| } |
| |
| if (range && (val < arizona_hpdet_c_ranges[range].min)) { |
| dev_dbg(arizona->dev, "Reporting range boundary %d\n", |
| arizona_hpdet_c_ranges[range].min); |
| val = arizona_hpdet_c_ranges[range].min; |
| } |
| } |
| |
| arizona->hp_impedance = val; |
| |
| if (arizona->pdata.hpdet_cb) |
| arizona->pdata.hpdet_cb(arizona->hp_impedance); |
| |
| dev_dbg(arizona->dev, "HP impedance %d ohms\n", val); |
| return val; |
| } |
| |
| static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading, |
| bool *mic) |
| { |
| struct arizona *arizona = info->arizona; |
| int id_gpio = arizona->pdata.hpdet_id_gpio; |
| |
| /* |
| * If we're using HPDET for accessory identification we need |
| * to take multiple measurements, step through them in sequence. |
| */ |
| if (arizona->pdata.hpdet_acc_id) { |
| info->hpdet_res[info->num_hpdet_res++] = *reading; |
| |
| /* Only check the mic directly if we didn't already ID it */ |
| if (id_gpio && info->num_hpdet_res == 1) { |
| dev_dbg(arizona->dev, "Measuring mic\n"); |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_MODE_MASK | |
| ARIZONA_ACCDET_SRC, |
| ARIZONA_ACCDET_MODE_HPR | |
| info->micd_modes[0].src); |
| |
| gpio_set_value_cansleep(id_gpio, 1); |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_HEADPHONE_DETECT_1, |
| ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
| return -EAGAIN; |
| } |
| |
| /* OK, got both. Now, compare... */ |
| dev_dbg(arizona->dev, "HPDET measured %d %d\n", |
| info->hpdet_res[0], info->hpdet_res[1]); |
| |
| /* Take the headphone impedance for the main report */ |
| *reading = info->hpdet_res[0]; |
| |
| /* Sometimes we get false readings due to slow insert */ |
| if (*reading >= ARIZONA_HPDET_MAX && !info->hpdet_retried) { |
| dev_dbg(arizona->dev, "Retrying high impedance\n"); |
| info->num_hpdet_res = 0; |
| info->hpdet_retried = true; |
| arizona_start_hpdet_acc_id(info); |
| pm_runtime_put(info->dev); |
| return -EAGAIN; |
| } |
| |
| /* |
| * If we measure the mic as |
| */ |
| if (!id_gpio || info->hpdet_res[1] > 50) { |
| dev_dbg(arizona->dev, "Detected mic\n"); |
| *mic = true; |
| info->detecting = true; |
| } else { |
| dev_dbg(arizona->dev, "Detected headphone\n"); |
| } |
| |
| /* Make sure everything is reset back to the real polarity */ |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_SRC, |
| info->micd_modes[0].src); |
| } |
| |
| return 0; |
| } |
| |
| static const struct reg_default low_impedance_patch[] = { |
| { 0x460, 0x0C21 }, |
| { 0x461, 0xA000 }, |
| { 0x462, 0x0C41 }, |
| { 0x463, 0x50E5 }, |
| { 0x464, 0x0C41 }, |
| { 0x465, 0x4040 }, |
| { 0x466, 0x0C41 }, |
| { 0x467, 0x3940 }, |
| { 0x468, 0x0C41 }, |
| { 0x469, 0x2418 }, |
| { 0x46A, 0x0846 }, |
| { 0x46B, 0x1990 }, |
| { 0x46C, 0x08C6 }, |
| { 0x46D, 0x1450 }, |
| { 0x46E, 0x04CE }, |
| { 0x46F, 0x1020 }, |
| { 0x470, 0x04CE }, |
| { 0x471, 0x0CD0 }, |
| { 0x472, 0x04CE }, |
| { 0x473, 0x0A30 }, |
| { 0x474, 0x044E }, |
| { 0x475, 0x0660 }, |
| { 0x476, 0x044E }, |
| { 0x477, 0x0510 }, |
| { 0x478, 0x04CE }, |
| { 0x479, 0x0400 }, |
| { 0x47A, 0x04CE }, |
| { 0x47B, 0x0330 }, |
| { 0x47C, 0x05DF }, |
| { 0x47D, 0x0001 }, |
| { 0x47E, 0x07FF }, |
| { 0x483, 0x0021 }, |
| }; |
| |
| static const struct reg_default normal_impedance_patch[] = { |
| { 0x460, 0x0C40 }, |
| { 0x461, 0xA000 }, |
| { 0x462, 0x0C42 }, |
| { 0x463, 0x50E5 }, |
| { 0x464, 0x0842 }, |
| { 0x465, 0x4040 }, |
| { 0x466, 0x0842 }, |
| { 0x467, 0x3940 }, |
| { 0x468, 0x0846 }, |
| { 0x469, 0x2418 }, |
| { 0x46A, 0x0442 }, |
| { 0x46B, 0x1990 }, |
| { 0x46C, 0x04C6 }, |
| { 0x46D, 0x1450 }, |
| { 0x46E, 0x04CE }, |
| { 0x46F, 0x1020 }, |
| { 0x470, 0x04CE }, |
| { 0x471, 0x0CD0 }, |
| { 0x472, 0x04CE }, |
| { 0x473, 0x0A30 }, |
| { 0x474, 0x044E }, |
| { 0x475, 0x0660 }, |
| { 0x476, 0x044E }, |
| { 0x477, 0x0510 }, |
| { 0x478, 0x04CE }, |
| { 0x479, 0x0400 }, |
| { 0x47A, 0x04CE }, |
| { 0x47B, 0x0330 }, |
| { 0x47C, 0x05DF }, |
| { 0x47D, 0x0001 }, |
| { 0x47E, 0x07FF }, |
| { 0x483, 0x0021 }, |
| }; |
| |
| int arizona_wm5110_tune_headphone(struct arizona_extcon_info *info, |
| int reading) |
| { |
| struct arizona *arizona = info->arizona; |
| const struct reg_default *patch; |
| int i, ret, size; |
| |
| if (reading <= ARIZONA_HP_SHORT_IMPEDANCE) { |
| /* Headphones are always off here so just mark them */ |
| dev_warn(arizona->dev, "Possible HP short, disabling\n"); |
| return 0; |
| } else if (reading <= 13) { |
| if (info->hp_imp_level == HP_LOW_IMPEDANCE) |
| return 0; |
| |
| info->hp_imp_level = HP_LOW_IMPEDANCE; |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_HP1_SHORT_CIRCUIT_CTRL, |
| ARIZONA_HP1_SC_ENA_MASK, 0); |
| |
| patch = low_impedance_patch; |
| size = ARRAY_SIZE(low_impedance_patch); |
| } else { |
| if (info->hp_imp_level == HP_NORMAL_IMPEDANCE) |
| return 0; |
| |
| info->hp_imp_level = HP_NORMAL_IMPEDANCE; |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_HP1_SHORT_CIRCUIT_CTRL, |
| ARIZONA_HP1_SC_ENA_MASK, |
| ARIZONA_HP1_SC_ENA_MASK); |
| |
| patch = normal_impedance_patch; |
| size = ARRAY_SIZE(normal_impedance_patch); |
| } |
| |
| for (i = 0; i < size; ++i) { |
| ret = regmap_write(arizona->regmap, |
| patch[i].reg, patch[i].def); |
| if (ret != 0) |
| dev_warn(arizona->dev, |
| "Failed to write headphone patch: %x <= %x\n", |
| patch[i].reg, patch[i].def); |
| } |
| |
| return 0; |
| } |
| |
| static irqreturn_t arizona_hpdet_irq(int irq, void *data) |
| { |
| struct arizona_extcon_info *info = data; |
| struct arizona *arizona = info->arizona; |
| int id_gpio = arizona->pdata.hpdet_id_gpio; |
| int ret, reading; |
| bool mic = false; |
| |
| mutex_lock(&info->lock); |
| |
| /* If we got a spurious IRQ for some reason then ignore it */ |
| if (!info->hpdet_active) { |
| dev_warn(arizona->dev, "Spurious HPDET IRQ\n"); |
| mutex_unlock(&info->lock); |
| return IRQ_NONE; |
| } |
| |
| /* If the cable was removed while measuring ignore the result */ |
| if (!info->cable) { |
| dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n"); |
| goto done; |
| } |
| |
| ret = arizona_hpdet_read(info); |
| if (ret == -EAGAIN) { |
| goto out; |
| } else if (ret < 0) { |
| goto done; |
| } |
| reading = ret; |
| |
| /* Reset back to starting range */ |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_HEADPHONE_DETECT_1, |
| ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
| 0); |
| |
| ret = arizona_hpdet_do_id(info, &reading, &mic); |
| if (ret == -EAGAIN) { |
| goto out; |
| } else if (ret < 0) { |
| goto done; |
| } |
| |
| switch (arizona->type) { |
| case WM5110: |
| arizona_wm5110_tune_headphone(info, arizona->hp_impedance); |
| break; |
| default: |
| break; |
| } |
| |
| if (mic || info->mic) |
| switch_set_state(&info->edev, BIT_HEADSET); |
| else |
| switch_set_state(&info->edev, BIT_HEADSET_NO_MIC); |
| |
| done: |
| /* Reset back to starting range */ |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_HEADPHONE_DETECT_1, |
| ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
| 0); |
| |
| arizona_extcon_do_magic(info, 0); |
| |
| if (id_gpio) |
| gpio_set_value_cansleep(id_gpio, 0); |
| |
| /* Revert back to MICDET mode */ |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
| |
| /* If we have a mic then reenable MICDET */ |
| if (mic || info->mic) |
| arizona_start_mic(info); |
| |
| if (info->hpdet_active) { |
| pm_runtime_put_autosuspend(info->dev); |
| info->hpdet_active = false; |
| } |
| |
| info->hpdet_done = true; |
| |
| out: |
| mutex_unlock(&info->lock); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void arizona_identify_headphone(struct arizona_extcon_info *info) |
| { |
| struct arizona *arizona = info->arizona; |
| int ret; |
| |
| if (info->hpdet_done) |
| return; |
| |
| if (info->arizona->pdata.fixed_hpdet_imp) { |
| int imp = info->arizona->pdata.fixed_hpdet_imp; |
| |
| switch (arizona->type) { |
| case WM5110: |
| arizona_wm5110_tune_headphone(info, imp); |
| info->arizona->hp_impedance = imp; |
| break; |
| default: |
| break; |
| } |
| |
| goto out; |
| } |
| |
| dev_dbg(arizona->dev, "Starting HPDET\n"); |
| |
| /* Make sure we keep the device enabled during the measurement */ |
| pm_runtime_get(info->dev); |
| |
| info->hpdet_active = true; |
| |
| if (info->mic) |
| arizona_stop_mic(info); |
| |
| arizona_extcon_do_magic(info, 0x4000); |
| |
| ret = regmap_update_bits(arizona->regmap, |
| ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_MODE_MASK, |
| ARIZONA_ACCDET_MODE_HPL); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); |
| goto out; |
| } |
| |
| ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
| ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", |
| ret); |
| goto out; |
| } |
| |
| return; |
| |
| out: |
| regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
| |
| /* Just report headphone */ |
| if (info->mic) { |
| switch_set_state(&info->edev, BIT_HEADSET); |
| arizona_start_mic(info); |
| } else { |
| switch_set_state(&info->edev, BIT_HEADSET_NO_MIC); |
| } |
| |
| info->hpdet_active = false; |
| } |
| |
| static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) |
| { |
| struct arizona *arizona = info->arizona; |
| int hp_reading = 32; |
| bool mic; |
| int ret; |
| |
| dev_dbg(arizona->dev, "Starting identification via HPDET\n"); |
| |
| /* Make sure we keep the device enabled during the measurement */ |
| pm_runtime_get_sync(info->dev); |
| |
| info->hpdet_active = true; |
| |
| arizona_extcon_do_magic(info, 0x4000); |
| |
| ret = regmap_update_bits(arizona->regmap, |
| ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK, |
| info->micd_modes[0].src | |
| ARIZONA_ACCDET_MODE_HPL); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); |
| goto err; |
| } |
| |
| if (arizona->pdata.hpdet_acc_id_line) { |
| ret = regmap_update_bits(arizona->regmap, |
| ARIZONA_HEADPHONE_DETECT_1, |
| ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
| if (ret != 0) { |
| dev_err(arizona->dev, |
| "Can't start HPDETL measurement: %d\n", |
| ret); |
| goto err; |
| } |
| } else { |
| arizona_hpdet_do_id(info, &hp_reading, &mic); |
| } |
| |
| return; |
| |
| err: |
| regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
| ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
| |
| /* Just report headphone */ |
| if (info->mic) |
| switch_set_state(&info->edev, BIT_HEADSET); |
| else |
| switch_set_state(&info->edev, BIT_HEADSET_NO_MIC); |
| |
| info->hpdet_active = false; |
| } |
| |
| static void arizona_micd_timeout_work(struct work_struct *work) |
| { |
| struct arizona_extcon_info *info = container_of(work, |
| struct arizona_extcon_info, |
| micd_timeout_work.work); |
| |
| mutex_lock(&info->lock); |
| |
| dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n"); |
| arizona_identify_headphone(info); |
| |
| info->detecting = false; |
| |
| arizona_stop_mic(info); |
| |
| mutex_unlock(&info->lock); |
| } |
| |
| static void arizona_micd_detect(struct work_struct *work) |
| { |
| struct arizona_extcon_info *info = container_of(work, |
| struct arizona_extcon_info, |
| micd_detect_work.work); |
| struct arizona *arizona = info->arizona; |
| unsigned int val = 0, lvl; |
| int ret, i, key; |
| |
| cancel_delayed_work_sync(&info->micd_timeout_work); |
| |
| mutex_lock(&info->lock); |
| |
| if (!info->cable) { |
| dev_dbg(arizona->dev, "Ignoring MICDET for removed cable\n"); |
| mutex_unlock(&info->lock); |
| return; |
| } |
| |
| if (info->detecting && arizona->pdata.micd_software_compare) { |
| /* Must disable MICD before we read the ADCVAL */ |
| regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_ENA, 0); |
| ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_4, &val); |
| if (ret != 0) { |
| dev_err(arizona->dev, |
| "Failed to read MICDET_ADCVAL: %d\n", |
| ret); |
| mutex_unlock(&info->lock); |
| return; |
| } |
| |
| dev_dbg(arizona->dev, "MICDET_ADCVAL: %x\n", val); |
| |
| val &= ARIZONA_MICDET_ADCVAL_MASK; |
| if (val < ARRAY_SIZE(arizona_micd_levels)) |
| val = arizona_micd_levels[val]; |
| else |
| val = INT_MAX; |
| |
| if (val <= QUICK_HEADPHONE_MAX_OHM) |
| val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_0; |
| else if (val <= MICROPHONE_MIN_OHM) |
| val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_1; |
| else if (val <= MICROPHONE_MAX_OHM) |
| val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_8; |
| else |
| val = ARIZONA_MICD_LVL_8; |
| } |
| |
| for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) { |
| ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret); |
| mutex_unlock(&info->lock); |
| return; |
| } |
| |
| dev_dbg(arizona->dev, "MICDET: %x\n", val); |
| |
| if (!(val & ARIZONA_MICD_VALID)) { |
| dev_warn(arizona->dev, "Microphone detection state invalid\n"); |
| mutex_unlock(&info->lock); |
| return; |
| } |
| } |
| |
| if (i == 10 && !(val & MICD_LVL_0_TO_8)) { |
| dev_err(arizona->dev, "Failed to get valid MICDET value\n"); |
| mutex_unlock(&info->lock); |
| return; |
| } |
| |
| if (info->micd_manual_debounce) { |
| if (info->micd_current > 0) { |
| if (info->micd_res[info->micd_current - 1] != val) |
| info->micd_current = 0; |
| } |
| |
| info->micd_res[info->micd_current++] = val; |
| |
| dev_dbg(arizona->dev, "Manual debounce: %d, 0x%04x\n", info->micd_current, val); |
| |
| if (info->micd_current == 4) { |
| info->micd_current = 0; |
| |
| if (val == info->micd_res_old) |
| goto handled; |
| info->micd_res_old = val; |
| } else { |
| int delay = arizona_micd_rates[arizona->pdata.micd_rate]; |
| |
| if (delay >= 32000) |
| msleep(delay / 1000); |
| else if (delay >= 1000) |
| usleep_range(delay, delay); |
| else if (delay) |
| udelay(delay); |
| |
| /* Must toggle MICD_ENA to ensure we get a new reading |
| * even if nothing changes |
| */ |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_ENA, 0); |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_ENA, ARIZONA_MICD_ENA); |
| goto handled; |
| } |
| } |
| |
| /* Due to jack detect this should never happen */ |
| if (!(val & ARIZONA_MICD_STS)) { |
| dev_warn(arizona->dev, "Detected open circuit\n"); |
| info->mic = arizona->pdata.micd_open_circuit_declare; |
| if (!info->mic) { |
| arizona_stop_mic(info); |
| } else { |
| /* Don't need to regulate for button detection */ |
| ret = regulator_allow_bypass(info->micvdd, true); |
| if (ret != 0) { |
| dev_err(arizona->dev, |
| "Failed to bypass MICVDD: %d\n", |
| ret); |
| } |
| } |
| info->detecting = false; |
| arizona_identify_headphone(info); |
| goto handled; |
| } |
| |
| /* If we got a high impedence we should have a headset, report it. */ |
| if (info->detecting && (val & ARIZONA_MICD_LVL_8)) { |
| info->mic = true; |
| info->detecting = false; |
| arizona_identify_headphone(info); |
| |
| /* Don't need to regulate for button detection */ |
| ret = regulator_allow_bypass(info->micvdd, true); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", |
| ret); |
| } |
| |
| goto handled; |
| } |
| |
| /* If we detected a lower impedence during initial startup |
| * then we probably have the wrong polarity, flip it. Don't |
| * do this for the lowest impedences to speed up detection of |
| * plain headphones. If both polarities report a low |
| * impedence then give up and report headphones. |
| */ |
| if (info->detecting && (val & MICD_LVL_1_TO_7)) { |
| if (info->jack_flips >= info->micd_num_modes * 10) { |
| dev_dbg(arizona->dev, "Detected HP/line\n"); |
| |
| info->detecting = false; |
| |
| arizona_identify_headphone(info); |
| |
| arizona_stop_mic(info); |
| } else { |
| info->micd_mode++; |
| if (info->micd_mode == info->micd_num_modes) |
| info->micd_mode = 0; |
| arizona_extcon_set_mode(info, info->micd_mode); |
| |
| info->jack_flips++; |
| } |
| |
| goto handled; |
| } |
| |
| /* |
| * If we're still detecting and we detect a short then we've |
| * got a headphone. Otherwise it's a button press. |
| */ |
| if (val & MICD_LVL_0_TO_7) { |
| if (info->mic) { |
| dev_dbg(arizona->dev, "Mic button detected\n"); |
| |
| lvl = val & ARIZONA_MICD_LVL_MASK; |
| lvl >>= ARIZONA_MICD_LVL_SHIFT; |
| |
| for (i = 0; i < info->num_micd_ranges; i++) |
| input_report_key(info->input, |
| info->micd_ranges[i].key, 0); |
| |
| WARN_ON(!lvl); |
| WARN_ON(ffs(lvl) - 1 >= info->num_micd_ranges); |
| if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) { |
| key = info->micd_ranges[ffs(lvl) - 1].key; |
| input_report_key(info->input, key, 1); |
| input_sync(info->input); |
| } |
| |
| } else if (info->detecting) { |
| dev_dbg(arizona->dev, "Headphone detected\n"); |
| info->detecting = false; |
| arizona_stop_mic(info); |
| |
| arizona_identify_headphone(info); |
| } else { |
| dev_warn(arizona->dev, "Button with no mic: %x\n", |
| val); |
| } |
| } else { |
| dev_dbg(arizona->dev, "Mic button released\n"); |
| for (i = 0; i < info->num_micd_ranges; i++) |
| input_report_key(info->input, |
| info->micd_ranges[i].key, 0); |
| input_sync(info->input); |
| arizona_extcon_pulse_micbias(info); |
| } |
| |
| handled: |
| if (info->detecting) { |
| if (arizona->pdata.micd_software_compare) |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_ENA, |
| ARIZONA_MICD_ENA); |
| |
| schedule_delayed_work(&info->micd_timeout_work, |
| msecs_to_jiffies(info->micd_timeout)); |
| } |
| |
| pm_runtime_mark_last_busy(info->dev); |
| mutex_unlock(&info->lock); |
| } |
| |
| static void arizona_micd_input_clear(struct work_struct *work) |
| { |
| struct arizona_extcon_info *info = container_of(work, |
| struct arizona_extcon_info, |
| micd_clear_work.work); |
| struct arizona *arizona = info->arizona; |
| |
| arizona_florida_clear_input(arizona); |
| |
| mutex_lock(&info->lock); |
| if (info->first_clear) { |
| schedule_delayed_work(&info->micd_clear_work, |
| msecs_to_jiffies(900)); |
| info->first_clear = false; |
| } |
| mutex_unlock(&info->lock); |
| } |
| |
| static irqreturn_t arizona_micdet(int irq, void *data) |
| { |
| struct arizona_extcon_info *info = data; |
| struct arizona *arizona = info->arizona; |
| int debounce = arizona->pdata.micd_detect_debounce; |
| |
| cancel_delayed_work_sync(&info->micd_detect_work); |
| cancel_delayed_work_sync(&info->micd_timeout_work); |
| cancel_delayed_work_sync(&info->micd_clear_work); |
| |
| mutex_lock(&info->lock); |
| |
| if (!info->detecting) |
| debounce = 0; |
| else if (info->micd_current > 0) |
| debounce = 0; |
| |
| switch (arizona->type) { |
| case WM5110: |
| info->first_clear = true; |
| schedule_delayed_work(&info->micd_clear_work, |
| msecs_to_jiffies(80)); |
| break; |
| default: |
| break; |
| } |
| |
| mutex_unlock(&info->lock); |
| |
| if (debounce) |
| schedule_delayed_work(&info->micd_detect_work, |
| msecs_to_jiffies(debounce)); |
| else |
| arizona_micd_detect(&info->micd_detect_work.work); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void arizona_hpdet_work(struct work_struct *work) |
| { |
| struct arizona_extcon_info *info = container_of(work, |
| struct arizona_extcon_info, |
| hpdet_work.work); |
| |
| mutex_lock(&info->lock); |
| arizona_start_hpdet_acc_id(info); |
| mutex_unlock(&info->lock); |
| } |
| |
| static irqreturn_t arizona_jackdet(int irq, void *data) |
| { |
| struct arizona_extcon_info *info = data; |
| struct arizona *arizona = info->arizona; |
| unsigned int val, present, mask; |
| bool cancelled_hp, cancelled_mic; |
| int ret, i; |
| |
| cancelled_hp = cancel_delayed_work_sync(&info->hpdet_work); |
| cancelled_mic = cancel_delayed_work_sync(&info->micd_timeout_work); |
| |
| pm_runtime_get_sync(info->dev); |
| |
| mutex_lock(&info->lock); |
| |
| if (arizona->pdata.jd_gpio5) { |
| mask = ARIZONA_MICD_CLAMP_STS; |
| present = 0; |
| } else { |
| mask = ARIZONA_JD1_STS; |
| present = ARIZONA_JD1_STS; |
| } |
| |
| ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to read jackdet status: %d\n", |
| ret); |
| mutex_unlock(&info->lock); |
| pm_runtime_put_autosuspend(info->dev); |
| return IRQ_NONE; |
| } |
| |
| val &= mask; |
| if (val == info->last_jackdet) { |
| dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n"); |
| if (cancelled_hp) |
| schedule_delayed_work(&info->hpdet_work, |
| msecs_to_jiffies(HPDET_DEBOUNCE)); |
| |
| if (cancelled_mic) |
| schedule_delayed_work(&info->micd_timeout_work, |
| msecs_to_jiffies(info->micd_timeout)); |
| |
| goto out; |
| } |
| info->last_jackdet = val; |
| |
| if (info->last_jackdet == present) { |
| dev_dbg(arizona->dev, "Detected jack\n"); |
| info->cable = true; |
| |
| if (!arizona->pdata.hpdet_acc_id) { |
| info->detecting = true; |
| info->mic = false; |
| info->jack_flips = 0; |
| |
| if (arizona->pdata.init_mic_delay) |
| msleep(arizona->pdata.init_mic_delay); |
| |
| arizona_start_mic(info); |
| } else { |
| schedule_delayed_work(&info->hpdet_work, |
| msecs_to_jiffies(HPDET_DEBOUNCE)); |
| } |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_JACK_DETECT_DEBOUNCE, |
| ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0); |
| } else { |
| dev_dbg(arizona->dev, "Detected jack removal\n"); |
| |
| info->cable = false; |
| arizona_stop_mic(info); |
| |
| info->num_hpdet_res = 0; |
| for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++) |
| info->hpdet_res[i] = 0; |
| info->mic = false; |
| info->micd_current = 0; |
| info->micd_res_old = 0; |
| info->hpdet_done = false; |
| info->hpdet_retried = false; |
| arizona->hp_impedance = 0; |
| |
| for (i = 0; i < info->num_micd_ranges; i++) |
| input_report_key(info->input, |
| info->micd_ranges[i].key, 0); |
| input_sync(info->input); |
| |
| switch_set_state(&info->edev, BIT_NO_HEADSET); |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_JACK_DETECT_DEBOUNCE, |
| ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, |
| ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB); |
| |
| switch (arizona->type) { |
| case WM5110: |
| arizona_wm5110_tune_headphone(info, ARIZONA_HP_Z_OPEN); |
| break; |
| default: |
| break; |
| } |
| |
| /* Use a sufficiently large number to indicate open circuit */ |
| if (arizona->pdata.hpdet_cb) { |
| arizona->pdata.hpdet_cb(ARIZONA_HP_Z_OPEN); |
| } |
| } |
| |
| if (arizona->pdata.micd_timeout) |
| info->micd_timeout = arizona->pdata.micd_timeout; |
| else |
| info->micd_timeout = DEFAULT_MICD_TIMEOUT; |
| |
| out: |
| /* Clear trig_sts to make sure DCVDD is not forced up */ |
| regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, |
| ARIZONA_MICD_CLAMP_FALL_TRIG_STS | |
| ARIZONA_MICD_CLAMP_RISE_TRIG_STS | |
| ARIZONA_JD1_FALL_TRIG_STS | |
| ARIZONA_JD1_RISE_TRIG_STS); |
| |
| mutex_unlock(&info->lock); |
| |
| pm_runtime_mark_last_busy(info->dev); |
| pm_runtime_put_autosuspend(info->dev); |
| |
| return IRQ_HANDLED; |
| } |
| |
| /* Map a level onto a slot in the register bank */ |
| static void arizona_micd_set_level(struct arizona *arizona, int index, |
| unsigned int level) |
| { |
| int reg; |
| unsigned int mask; |
| |
| reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2); |
| |
| if (!(index % 2)) { |
| mask = 0x3f00; |
| level <<= 8; |
| } else { |
| mask = 0x3f; |
| } |
| |
| /* Program the level itself */ |
| regmap_update_bits(arizona->regmap, reg, mask, level); |
| } |
| |
| #ifdef CONFIG_OF |
| static int arizona_extcon_get_pdata(struct arizona *arizona) |
| { |
| struct arizona_pdata *pdata = &arizona->pdata; |
| |
| arizona_of_read_u32(arizona, "wlf,micd-detect-debounce", false, |
| &pdata->micd_detect_debounce); |
| |
| arizona_of_get_named_gpio(arizona, "wlf,micd-pol-gpio", false, |
| &pdata->micd_pol_gpio); |
| |
| arizona_of_read_u32(arizona, "wlf,micd-bias-start-time", false, |
| &pdata->micd_bias_start_time); |
| |
| arizona_of_read_u32(arizona, "wlf,micd-rate", false, |
| &pdata->micd_rate); |
| |
| arizona_of_read_u32(arizona, "wlf,micd-dbtime", false, |
| &pdata->micd_dbtime); |
| |
| arizona_of_read_u32(arizona, "wlf,micd-timeout", false, |
| &pdata->micd_timeout); |
| |
| pdata->micd_force_micbias = |
| of_property_read_bool(arizona->dev->of_node, |
| "wlf,micd-force-micbias"); |
| |
| pdata->micd_force_micbias_initial = |
| of_property_read_bool(arizona->dev->of_node, |
| "wlf,micd-force-micbias-initial"); |
| pdata->micd_software_compare = |
| of_property_read_bool(arizona->dev->of_node, |
| "wlf,micd-software-compare"); |
| |
| pdata->micd_open_circuit_declare = |
| of_property_read_bool(arizona->dev->of_node, |
| "wlf,micd-open-circuit-declare"); |
| |
| pdata->jd_gpio5 = of_property_read_bool(arizona->dev->of_node, |
| "wlf,use-jd-gpio"); |
| |
| pdata->jd_gpio5_nopull = of_property_read_bool(arizona->dev->of_node, |
| "wlf,jd-gpio-nopull"); |
| |
| arizona_of_read_u32(arizona, "wlf,gpsw", false, &pdata->gpsw); |
| |
| arizona_of_read_u32(arizona, "wlf,init-mic-delay", false, |
| &pdata->init_mic_delay); |
| |
| arizona_of_read_u32(arizona, "wlf,fixed-hpdet-imp", false, |
| &pdata->fixed_hpdet_imp); |
| |
| return 0; |
| } |
| #else |
| static inline int arizona_extcon_get_pdata(struct arizona *arizona) |
| { |
| return 0; |
| } |
| #endif |
| |
| static ssize_t arizona_extcon_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct platform_device *pdev = to_platform_device(dev); |
| struct arizona_extcon_info *info = platform_get_drvdata(pdev); |
| |
| return scnprintf(buf, PAGE_SIZE, "%d\n", info->arizona->hp_impedance); |
| } |
| |
| static int arizona_extcon_probe(struct platform_device *pdev) |
| { |
| struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); |
| struct arizona_pdata *pdata = &arizona->pdata; |
| struct arizona_extcon_info *info; |
| unsigned int val; |
| int jack_irq_fall, jack_irq_rise; |
| int ret, mode, i, j; |
| |
| if (!arizona->dapm || !arizona->dapm->card) |
| return -EPROBE_DEFER; |
| |
| if (arizona->pdata.dynamic_gpio && !arizona->pdata.gpio_base) |
| return -EPROBE_DEFER; |
| |
| arizona_extcon_get_pdata(arizona); |
| |
| info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); |
| if (!info) { |
| dev_err(&pdev->dev, "Failed to allocate memory\n"); |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| info->micvdd = devm_regulator_get(arizona->dev, "MICVDD"); |
| if (IS_ERR(info->micvdd)) { |
| ret = PTR_ERR(info->micvdd); |
| dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret); |
| goto err; |
| } |
| |
| mutex_init(&info->lock); |
| info->arizona = arizona; |
| info->dev = &pdev->dev; |
| info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS); |
| INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); |
| INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect); |
| INIT_DELAYED_WORK(&info->micd_clear_work, arizona_micd_input_clear); |
| INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work); |
| platform_set_drvdata(pdev, info); |
| |
| switch (arizona->type) { |
| case WM5102: |
| switch (arizona->rev) { |
| case 0: |
| info->micd_reva = true; |
| break; |
| default: |
| info->micd_clamp = true; |
| info->hpdet_ip = 1; |
| break; |
| } |
| break; |
| case WM8280: |
| switch (arizona->rev) { |
| case 0 ... 2: |
| break; |
| default: |
| info->micd_clamp = true; |
| info->hpdet_ip = 2; |
| break; |
| } |
| break; |
| case WM5110: |
| switch (arizona->rev) { |
| case 0 ... 2: |
| info->micd_manual_debounce = true; |
| break; |
| default: |
| info->micd_manual_debounce = true; |
| info->micd_clamp = true; |
| info->hpdet_ip = 2; |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| info->edev.name = "h2w"; |
| |
| ret = switch_dev_register(&info->edev); |
| if (ret < 0) { |
| dev_err(arizona->dev, "extcon_dev_register() failed: %d\n", |
| ret); |
| goto err; |
| } |
| |
| info->input = devm_input_allocate_device(&pdev->dev); |
| if (!info->input) { |
| dev_err(arizona->dev, "Can't allocate input dev\n"); |
| ret = -ENOMEM; |
| goto err_register; |
| } |
| |
| info->input->name = "Headset"; |
| info->input->phys = "arizona/extcon"; |
| info->input->dev.parent = &pdev->dev; |
| |
| if (pdata->num_micd_configs) { |
| info->micd_modes = pdata->micd_configs; |
| info->micd_num_modes = pdata->num_micd_configs; |
| } else { |
| info->micd_modes = micd_default_modes; |
| info->micd_num_modes = ARRAY_SIZE(micd_default_modes); |
| } |
| |
| if (arizona->pdata.gpsw > 0) |
| regmap_update_bits(arizona->regmap, ARIZONA_GP_SWITCH_1, |
| ARIZONA_SW1_MODE_MASK, arizona->pdata.gpsw); |
| |
| if ((arizona->pdata.micd_pol_gpio > 0) || |
| (arizona->pdata.dynamic_gpio && arizona->pdata.micd_pol_gpio >= 0)) { |
| |
| if (arizona->pdata.dynamic_gpio) |
| arizona->pdata.micd_pol_gpio += arizona->pdata.gpio_base; |
| |
| if (info->micd_modes[0].gpio) |
| mode = GPIOF_OUT_INIT_HIGH; |
| else |
| mode = GPIOF_OUT_INIT_LOW; |
| |
| ret = devm_gpio_request_one(&pdev->dev, |
| arizona->pdata.micd_pol_gpio, |
| mode, |
| "MICD polarity"); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", |
| arizona->pdata.micd_pol_gpio, ret); |
| goto err_register; |
| } |
| } |
| |
| if (arizona->pdata.hpdet_id_gpio > 0) { |
| ret = devm_gpio_request_one(&pdev->dev, |
| arizona->pdata.hpdet_id_gpio, |
| GPIOF_OUT_INIT_LOW, |
| "HPDET"); |
| if (ret != 0) { |
| dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", |
| arizona->pdata.hpdet_id_gpio, ret); |
| goto err_register; |
| } |
| } |
| |
| if (arizona->pdata.micd_bias_start_time) |
| regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_BIAS_STARTTIME_MASK, |
| arizona->pdata.micd_bias_start_time |
| << ARIZONA_MICD_BIAS_STARTTIME_SHIFT); |
| |
| if (info->micd_manual_debounce) { |
| regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_RATE_MASK, 0); |
| |
| regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_DBTIME_MASK, 0); |
| } else { |
| if (arizona->pdata.micd_rate) |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_RATE_MASK, |
| arizona->pdata.micd_rate |
| << ARIZONA_MICD_RATE_SHIFT); |
| |
| if (arizona->pdata.micd_dbtime) |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MIC_DETECT_1, |
| ARIZONA_MICD_DBTIME_MASK, |
| arizona->pdata.micd_dbtime |
| << ARIZONA_MICD_DBTIME_SHIFT); |
| } |
| |
| BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) < |
| ARIZONA_NUM_MICD_BUTTON_LEVELS); |
| |
| if (arizona->pdata.num_micd_ranges) { |
| info->micd_ranges = pdata->micd_ranges; |
| info->num_micd_ranges = pdata->num_micd_ranges; |
| } else { |
| info->micd_ranges = micd_default_ranges; |
| info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges); |
| } |
| |
| if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) { |
| dev_err(arizona->dev, "Too many MICD ranges: %d\n", |
| arizona->pdata.num_micd_ranges); |
| } |
| |
| if (info->num_micd_ranges > 1) { |
| for (i = 1; i < info->num_micd_ranges; i++) { |
| if (info->micd_ranges[i - 1].max > |
| info->micd_ranges[i].max) { |
| dev_err(arizona->dev, |
| "MICD ranges must be sorted\n"); |
| ret = -EINVAL; |
| goto err_input; |
| } |
| } |
| } |
| |
| /* Disable all buttons by default */ |
| regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, |
| ARIZONA_MICD_LVL_SEL_MASK, 0x81); |
| |
| /* Set up all the buttons the user specified */ |
| for (i = 0; i < info->num_micd_ranges; i++) { |
| for (j = 0; j < ARIZONA_NUM_MICD_BUTTON_LEVELS; j++) |
| if (arizona_micd_levels[j] >= info->micd_ranges[i].max) |
| break; |
| |
| if (j == ARIZONA_NUM_MICD_BUTTON_LEVELS) { |
| dev_err(arizona->dev, "Unsupported MICD level %d\n", |
| info->micd_ranges[i].max); |
| ret = -EINVAL; |
| goto err_input; |
| } |
| |
| dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n", |
| arizona_micd_levels[j], i); |
| |
| arizona_micd_set_level(arizona, i, j); |
| input_set_capability(info->input, EV_KEY, |
| info->micd_ranges[i].key); |
| |
| /* Enable reporting of that range */ |
| regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, |
| 1 << i, 1 << i); |
| } |
| |
| /* Set all the remaining keys to a maximum */ |
| for (; i < ARIZONA_MAX_MICD_RANGE; i++) |
| arizona_micd_set_level(arizona, i, 0x3f); |
| |
| /* |
| * If we have a clamp use it, activating in conjunction with |
| * GPIO5 if that is connected for jack detect operation. |
| */ |
| if (info->micd_clamp) { |
| if (arizona->pdata.jd_gpio5) { |
| /* Put the GPIO into input mode with optional pull */ |
| val = 0xc101; |
| if (arizona->pdata.jd_gpio5_nopull) |
| val &= ~ARIZONA_GPN_PU; |
| |
| regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, |
| val); |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MICD_CLAMP_CONTROL, |
| ARIZONA_MICD_CLAMP_MODE_MASK, 0x9); |
| } else { |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MICD_CLAMP_CONTROL, |
| ARIZONA_MICD_CLAMP_MODE_MASK, 0x4); |
| } |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_JACK_DETECT_DEBOUNCE, |
| ARIZONA_MICD_CLAMP_DB, |
| ARIZONA_MICD_CLAMP_DB); |
| } |
| |
| arizona_extcon_set_mode(info, 0); |
| |
| pm_runtime_enable(&pdev->dev); |
| pm_runtime_idle(&pdev->dev); |
| pm_runtime_get_sync(&pdev->dev); |
| |
| if (arizona->pdata.jd_gpio5) { |
| jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; |
| jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; |
| } else { |
| jack_irq_rise = ARIZONA_IRQ_JD_RISE; |
| jack_irq_fall = ARIZONA_IRQ_JD_FALL; |
| } |
| |
| ret = arizona_request_irq(arizona, jack_irq_rise, |
| "JACKDET rise", arizona_jackdet, info); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n", |
| ret); |
| goto err_input; |
| } |
| |
| ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n", |
| ret); |
| goto err_rise; |
| } |
| |
| ret = arizona_request_irq(arizona, jack_irq_fall, |
| "JACKDET fall", arizona_jackdet, info); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret); |
| goto err_rise_wake; |
| } |
| |
| ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n", |
| ret); |
| goto err_fall; |
| } |
| |
| regmap_update_bits(arizona->regmap, ARIZONA_AOD_IRQ_MASK_IRQ1, 0xC, 0); |
| |
| ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET, |
| "MICDET", arizona_micdet, info); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret); |
| goto err_fall_wake; |
| } |
| |
| ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET, |
| "HPDET", arizona_hpdet_irq, info); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret); |
| goto err_micdet; |
| } |
| |
| arizona_clk32k_enable(arizona); |
| regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE, |
| ARIZONA_JD1_DB, ARIZONA_JD1_DB); |
| regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
| ARIZONA_JD1_ENA, ARIZONA_JD1_ENA); |
| |
| ret = regulator_allow_bypass(info->micvdd, true); |
| if (ret != 0) |
| dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n", |
| ret); |
| |
| pm_runtime_put(&pdev->dev); |
| |
| ret = input_register_device(info->input); |
| if (ret) { |
| dev_err(&pdev->dev, "Can't register input device: %d\n", ret); |
| goto err_hpdet; |
| } |
| |
| ret = device_create_file(&pdev->dev, &dev_attr_hp_impedance); |
| if (ret != 0) |
| dev_err(&pdev->dev, |
| "Failed to create sysfs node for hp_impedance %d\n", |
| ret); |
| |
| return 0; |
| |
| err_hpdet: |
| arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); |
| err_micdet: |
| arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
| err_fall_wake: |
| arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
| err_fall: |
| arizona_free_irq(arizona, jack_irq_fall, info); |
| err_rise_wake: |
| arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
| err_rise: |
| arizona_free_irq(arizona, jack_irq_rise, info); |
| err_input: |
| err_register: |
| pm_runtime_disable(&pdev->dev); |
| switch_dev_unregister(&info->edev); |
| err: |
| return ret; |
| } |
| |
| static int arizona_extcon_remove(struct platform_device *pdev) |
| { |
| struct arizona_extcon_info *info = platform_get_drvdata(pdev); |
| struct arizona *arizona = info->arizona; |
| int jack_irq_rise, jack_irq_fall; |
| |
| pm_runtime_disable(&pdev->dev); |
| |
| regmap_update_bits(arizona->regmap, |
| ARIZONA_MICD_CLAMP_CONTROL, |
| ARIZONA_MICD_CLAMP_MODE_MASK, 0); |
| |
| if (arizona->pdata.jd_gpio5) { |
| jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; |
| jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; |
| } else { |
| jack_irq_rise = ARIZONA_IRQ_JD_RISE; |
| jack_irq_fall = ARIZONA_IRQ_JD_FALL; |
| } |
| |
| arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
| arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
| arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); |
| arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
| arizona_free_irq(arizona, jack_irq_rise, info); |
| arizona_free_irq(arizona, jack_irq_fall, info); |
| cancel_delayed_work_sync(&info->hpdet_work); |
| regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
| ARIZONA_JD1_ENA, 0); |
| arizona_clk32k_disable(arizona); |
| |
| device_remove_file(&pdev->dev, &dev_attr_hp_impedance); |
| switch_dev_unregister(&info->edev); |
| |
| return 0; |
| } |
| |
| static struct platform_driver arizona_extcon_driver = { |
| .driver = { |
| .name = "arizona-extcon", |
| .owner = THIS_MODULE, |
| }, |
| .probe = arizona_extcon_probe, |
| .remove = arizona_extcon_remove, |
| }; |
| |
| module_platform_driver(arizona_extcon_driver); |
| |
| MODULE_DESCRIPTION("Arizona Extcon driver"); |
| MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:extcon-arizona"); |