![Charles Keepax](/assets/img/avatar_default.png)
Continue refactoring the microphone detect handling by factoring out the handling for microphone detection and button detection into separate functions. This both makes the code a little clearer and prepares for some planned future refactoring to make the state handling in the driver more explicit. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
1816 lines
45 KiB
C
1816 lines
45 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* extcon-arizona.c - Extcon driver Wolfson Arizona devices
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*
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* Copyright (C) 2012-2014 Wolfson Microelectronics plc
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/err.h>
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#include <linux/gpio/consumer.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/property.h>
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#include <linux/regulator/consumer.h>
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#include <linux/extcon-provider.h>
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#include <sound/soc.h>
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#include <linux/mfd/arizona/core.h>
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#include <linux/mfd/arizona/pdata.h>
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#include <linux/mfd/arizona/registers.h>
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#include <dt-bindings/mfd/arizona.h>
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#define ARIZONA_MAX_MICD_RANGE 8
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#define ARIZONA_MICD_CLAMP_MODE_JDL 0x4
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#define ARIZONA_MICD_CLAMP_MODE_JDH 0x5
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#define ARIZONA_MICD_CLAMP_MODE_JDL_GP5H 0x9
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#define ARIZONA_MICD_CLAMP_MODE_JDH_GP5H 0xb
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#define ARIZONA_TST_CAP_DEFAULT 0x3
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#define ARIZONA_TST_CAP_CLAMP 0x1
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#define ARIZONA_HPDET_MAX 10000
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#define HPDET_DEBOUNCE 500
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#define DEFAULT_MICD_TIMEOUT 2000
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#define ARIZONA_HPDET_WAIT_COUNT 15
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#define ARIZONA_HPDET_WAIT_DELAY_MS 20
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#define QUICK_HEADPHONE_MAX_OHM 3
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#define MICROPHONE_MIN_OHM 1257
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#define MICROPHONE_MAX_OHM 30000
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#define MICD_DBTIME_TWO_READINGS 2
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#define MICD_DBTIME_FOUR_READINGS 4
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#define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \
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ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \
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ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \
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ARIZONA_MICD_LVL_7)
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#define MICD_LVL_0_TO_7 (ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7)
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#define MICD_LVL_0_TO_8 (MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8)
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struct arizona_extcon_info {
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struct device *dev;
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struct arizona *arizona;
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struct mutex lock;
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struct regulator *micvdd;
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struct input_dev *input;
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u16 last_jackdet;
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int micd_mode;
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const struct arizona_micd_config *micd_modes;
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int micd_num_modes;
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const struct arizona_micd_range *micd_ranges;
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int num_micd_ranges;
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bool micd_reva;
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bool micd_clamp;
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struct delayed_work hpdet_work;
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struct delayed_work micd_detect_work;
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struct delayed_work micd_timeout_work;
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bool hpdet_active;
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bool hpdet_done;
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bool hpdet_retried;
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int num_hpdet_res;
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unsigned int hpdet_res[3];
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bool mic;
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bool detecting;
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int jack_flips;
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int hpdet_ip_version;
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struct extcon_dev *edev;
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struct gpio_desc *micd_pol_gpio;
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};
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static const struct arizona_micd_config micd_default_modes[] = {
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{ ARIZONA_ACCDET_SRC, 1, 0 },
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{ 0, 2, 1 },
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};
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static const struct arizona_micd_range micd_default_ranges[] = {
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{ .max = 11, .key = BTN_0 },
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{ .max = 28, .key = BTN_1 },
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{ .max = 54, .key = BTN_2 },
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{ .max = 100, .key = BTN_3 },
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{ .max = 186, .key = BTN_4 },
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{ .max = 430, .key = BTN_5 },
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};
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/* The number of levels in arizona_micd_levels valid for button thresholds */
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#define ARIZONA_NUM_MICD_BUTTON_LEVELS 64
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static const int arizona_micd_levels[] = {
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3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46,
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49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100,
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105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245,
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270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071,
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1257, 30000,
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};
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static const unsigned int arizona_cable[] = {
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EXTCON_MECHANICAL,
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EXTCON_JACK_MICROPHONE,
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EXTCON_JACK_HEADPHONE,
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EXTCON_JACK_LINE_OUT,
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EXTCON_NONE,
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};
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static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info);
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static void arizona_extcon_hp_clamp(struct arizona_extcon_info *info,
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bool clamp)
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{
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struct arizona *arizona = info->arizona;
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unsigned int mask = 0, val = 0;
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unsigned int cap_sel = 0;
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int ret;
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switch (arizona->type) {
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case WM8998:
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case WM1814:
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mask = 0;
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break;
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case WM5110:
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case WM8280:
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mask = ARIZONA_HP1L_SHRTO | ARIZONA_HP1L_FLWR |
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ARIZONA_HP1L_SHRTI;
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if (clamp) {
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val = ARIZONA_HP1L_SHRTO;
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cap_sel = ARIZONA_TST_CAP_CLAMP;
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} else {
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val = ARIZONA_HP1L_FLWR | ARIZONA_HP1L_SHRTI;
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cap_sel = ARIZONA_TST_CAP_DEFAULT;
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}
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ret = regmap_update_bits(arizona->regmap,
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ARIZONA_HP_TEST_CTRL_1,
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ARIZONA_HP1_TST_CAP_SEL_MASK,
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cap_sel);
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if (ret != 0)
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dev_warn(arizona->dev,
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"Failed to set TST_CAP_SEL: %d\n", ret);
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break;
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default:
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mask = ARIZONA_RMV_SHRT_HP1L;
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if (clamp)
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val = ARIZONA_RMV_SHRT_HP1L;
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break;
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}
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snd_soc_dapm_mutex_lock(arizona->dapm);
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arizona->hpdet_clamp = clamp;
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/* Keep the HP output stages disabled while doing the clamp */
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if (clamp) {
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ret = regmap_update_bits(arizona->regmap,
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ARIZONA_OUTPUT_ENABLES_1,
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ARIZONA_OUT1L_ENA |
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ARIZONA_OUT1R_ENA, 0);
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if (ret != 0)
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dev_warn(arizona->dev,
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"Failed to disable headphone outputs: %d\n",
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ret);
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}
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if (mask) {
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ret = regmap_update_bits(arizona->regmap, ARIZONA_HP_CTRL_1L,
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mask, val);
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if (ret != 0)
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dev_warn(arizona->dev, "Failed to do clamp: %d\n",
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ret);
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ret = regmap_update_bits(arizona->regmap, ARIZONA_HP_CTRL_1R,
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mask, val);
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if (ret != 0)
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dev_warn(arizona->dev, "Failed to do clamp: %d\n",
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ret);
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}
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/* Restore the desired state while not doing the clamp */
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if (!clamp) {
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ret = regmap_update_bits(arizona->regmap,
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ARIZONA_OUTPUT_ENABLES_1,
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ARIZONA_OUT1L_ENA |
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ARIZONA_OUT1R_ENA, arizona->hp_ena);
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if (ret != 0)
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dev_warn(arizona->dev,
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"Failed to restore headphone outputs: %d\n",
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ret);
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}
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snd_soc_dapm_mutex_unlock(arizona->dapm);
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}
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static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
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{
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struct arizona *arizona = info->arizona;
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mode %= info->micd_num_modes;
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gpiod_set_value_cansleep(info->micd_pol_gpio,
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info->micd_modes[mode].gpio);
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regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
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ARIZONA_MICD_BIAS_SRC_MASK,
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info->micd_modes[mode].bias <<
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ARIZONA_MICD_BIAS_SRC_SHIFT);
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regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
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ARIZONA_ACCDET_SRC, info->micd_modes[mode].src);
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info->micd_mode = mode;
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dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode);
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}
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static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info)
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{
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switch (info->micd_modes[0].bias) {
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case 1:
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return "MICBIAS1";
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case 2:
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return "MICBIAS2";
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case 3:
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return "MICBIAS3";
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default:
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return "MICVDD";
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}
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}
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static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info)
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{
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struct arizona *arizona = info->arizona;
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const char *widget = arizona_extcon_get_micbias(info);
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struct snd_soc_dapm_context *dapm = arizona->dapm;
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struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
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int ret;
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ret = snd_soc_component_force_enable_pin(component, widget);
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if (ret != 0)
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dev_warn(arizona->dev, "Failed to enable %s: %d\n",
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widget, ret);
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snd_soc_dapm_sync(dapm);
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if (!arizona->pdata.micd_force_micbias) {
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ret = snd_soc_component_disable_pin(component, widget);
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if (ret != 0)
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dev_warn(arizona->dev, "Failed to disable %s: %d\n",
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widget, ret);
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snd_soc_dapm_sync(dapm);
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}
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}
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static void arizona_start_mic(struct arizona_extcon_info *info)
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{
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struct arizona *arizona = info->arizona;
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bool change;
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int ret;
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unsigned int mode;
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/* Microphone detection can't use idle mode */
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pm_runtime_get(info->dev);
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if (info->detecting) {
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ret = regulator_allow_bypass(info->micvdd, false);
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if (ret != 0) {
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dev_err(arizona->dev,
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"Failed to regulate MICVDD: %d\n",
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ret);
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}
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}
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ret = regulator_enable(info->micvdd);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to enable MICVDD: %d\n",
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ret);
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}
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if (info->micd_reva) {
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const struct reg_sequence reva[] = {
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{ 0x80, 0x3 },
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{ 0x294, 0x0 },
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{ 0x80, 0x0 },
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};
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regmap_multi_reg_write(arizona->regmap, reva, ARRAY_SIZE(reva));
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}
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if (info->detecting && arizona->pdata.micd_software_compare)
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mode = ARIZONA_ACCDET_MODE_ADC;
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else
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mode = ARIZONA_ACCDET_MODE_MIC;
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regmap_update_bits(arizona->regmap,
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ARIZONA_ACCESSORY_DETECT_MODE_1,
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ARIZONA_ACCDET_MODE_MASK, mode);
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arizona_extcon_pulse_micbias(info);
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ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
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ARIZONA_MICD_ENA, ARIZONA_MICD_ENA,
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&change);
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if (ret < 0) {
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dev_err(arizona->dev, "Failed to enable micd: %d\n", ret);
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} else if (!change) {
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regulator_disable(info->micvdd);
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pm_runtime_put_autosuspend(info->dev);
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}
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}
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static void arizona_stop_mic(struct arizona_extcon_info *info)
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{
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struct arizona *arizona = info->arizona;
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const char *widget = arizona_extcon_get_micbias(info);
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struct snd_soc_dapm_context *dapm = arizona->dapm;
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struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
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bool change = false;
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int ret;
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ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
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ARIZONA_MICD_ENA, 0,
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&change);
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if (ret < 0)
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dev_err(arizona->dev, "Failed to disable micd: %d\n", ret);
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ret = snd_soc_component_disable_pin(component, widget);
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if (ret != 0)
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dev_warn(arizona->dev,
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"Failed to disable %s: %d\n",
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widget, ret);
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snd_soc_dapm_sync(dapm);
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if (info->micd_reva) {
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const struct reg_sequence reva[] = {
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{ 0x80, 0x3 },
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{ 0x294, 0x2 },
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{ 0x80, 0x0 },
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};
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regmap_multi_reg_write(arizona->regmap, reva, ARRAY_SIZE(reva));
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}
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ret = regulator_allow_bypass(info->micvdd, true);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n",
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ret);
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}
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if (change) {
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regulator_disable(info->micvdd);
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pm_runtime_mark_last_busy(info->dev);
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pm_runtime_put_autosuspend(info->dev);
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}
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}
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static struct {
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unsigned int threshold;
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unsigned int factor_a;
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unsigned int factor_b;
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} arizona_hpdet_b_ranges[] = {
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{ 100, 5528, 362464 },
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{ 169, 11084, 6186851 },
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{ 169, 11065, 65460395 },
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};
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#define ARIZONA_HPDET_B_RANGE_MAX 0x3fb
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static struct {
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int min;
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int max;
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} arizona_hpdet_c_ranges[] = {
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{ 0, 30 },
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{ 8, 100 },
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{ 100, 1000 },
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{ 1000, 10000 },
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};
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static int arizona_hpdet_read(struct arizona_extcon_info *info)
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{
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struct arizona *arizona = info->arizona;
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unsigned int val, range;
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int ret;
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ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to read HPDET status: %d\n",
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ret);
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return ret;
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}
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switch (info->hpdet_ip_version) {
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case 0:
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if (!(val & ARIZONA_HP_DONE)) {
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dev_err(arizona->dev, "HPDET did not complete: %x\n",
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val);
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return -EAGAIN;
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}
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val &= ARIZONA_HP_LVL_MASK;
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break;
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case 1:
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if (!(val & ARIZONA_HP_DONE_B)) {
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dev_err(arizona->dev, "HPDET did not complete: %x\n",
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val);
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return -EAGAIN;
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}
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ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to read HP value: %d\n",
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ret);
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return -EAGAIN;
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}
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regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
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&range);
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range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
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>> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
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if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 &&
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(val < arizona_hpdet_b_ranges[range].threshold ||
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val >= ARIZONA_HPDET_B_RANGE_MAX)) {
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range++;
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dev_dbg(arizona->dev, "Moving to HPDET range %d\n",
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range);
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regmap_update_bits(arizona->regmap,
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ARIZONA_HEADPHONE_DETECT_1,
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ARIZONA_HP_IMPEDANCE_RANGE_MASK,
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range <<
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ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
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return -EAGAIN;
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}
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/* If we go out of range report top of range */
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if (val < arizona_hpdet_b_ranges[range].threshold ||
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val >= ARIZONA_HPDET_B_RANGE_MAX) {
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dev_dbg(arizona->dev, "Measurement out of range\n");
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return ARIZONA_HPDET_MAX;
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}
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dev_dbg(arizona->dev, "HPDET read %d in range %d\n",
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val, range);
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val = arizona_hpdet_b_ranges[range].factor_b
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/ ((val * 100) -
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arizona_hpdet_b_ranges[range].factor_a);
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break;
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|
|
|
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;
|
|
/* Convert to ohms, the value is in 0.5 ohm increments */
|
|
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;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n",
|
|
info->hpdet_ip_version);
|
|
return -EINVAL;
|
|
}
|
|
|
|
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 (!arizona->pdata.hpdet_acc_id)
|
|
return 0;
|
|
|
|
/*
|
|
* If we're using HPDET for accessory identification we need
|
|
* to take multiple measurements, step through them in sequence.
|
|
*/
|
|
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 high impedance
|
|
*/
|
|
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 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;
|
|
unsigned int report = EXTCON_JACK_HEADPHONE;
|
|
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 */
|
|
ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);
|
|
if (ret < 0) {
|
|
dev_err(arizona->dev, "Failed to check cable state: %d\n",
|
|
ret);
|
|
goto out;
|
|
} else if (!ret) {
|
|
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;
|
|
|
|
/* Report high impedence cables as line outputs */
|
|
if (reading >= 5000)
|
|
report = EXTCON_JACK_LINE_OUT;
|
|
else
|
|
report = EXTCON_JACK_HEADPHONE;
|
|
|
|
ret = extcon_set_state_sync(info->edev, report, true);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Failed to report HP/line: %d\n",
|
|
ret);
|
|
|
|
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_hp_clamp(info, false);
|
|
|
|
if (id_gpio)
|
|
gpio_set_value_cansleep(id_gpio, 0);
|
|
|
|
/* 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;
|
|
|
|
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;
|
|
|
|
arizona_stop_mic(info);
|
|
|
|
arizona_extcon_hp_clamp(info, true);
|
|
|
|
ret = regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ACCESSORY_DETECT_MODE_1,
|
|
ARIZONA_ACCDET_MODE_MASK,
|
|
arizona->pdata.hpdet_channel);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to set HPDET mode: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
return;
|
|
|
|
err:
|
|
arizona_extcon_hp_clamp(info, false);
|
|
pm_runtime_put_autosuspend(info->dev);
|
|
|
|
/* Just report headphone */
|
|
ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
|
|
|
|
if (info->mic)
|
|
arizona_start_mic(info);
|
|
|
|
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_hp_clamp(info, true);
|
|
|
|
ret = regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ACCESSORY_DETECT_MODE_1,
|
|
ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK,
|
|
info->micd_modes[0].src |
|
|
arizona->pdata.hpdet_channel);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to set HPDET 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:
|
|
/* Just report headphone */
|
|
ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
|
|
|
|
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");
|
|
|
|
info->detecting = false;
|
|
|
|
arizona_identify_headphone(info);
|
|
|
|
mutex_unlock(&info->lock);
|
|
}
|
|
|
|
static int arizona_micd_adc_read(struct arizona_extcon_info *info)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
unsigned int val;
|
|
int ret;
|
|
|
|
/* 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);
|
|
return ret;
|
|
}
|
|
|
|
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;
|
|
|
|
return val;
|
|
}
|
|
|
|
static int arizona_micd_read(struct arizona_extcon_info *info)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
unsigned int val = 0;
|
|
int ret, i;
|
|
|
|
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);
|
|
return ret;
|
|
}
|
|
|
|
dev_dbg(arizona->dev, "MICDET: %x\n", val);
|
|
|
|
if (!(val & ARIZONA_MICD_VALID)) {
|
|
dev_warn(arizona->dev,
|
|
"Microphone detection state invalid\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (i == 10 && !(val & MICD_LVL_0_TO_8)) {
|
|
dev_err(arizona->dev, "Failed to get valid MICDET value\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
static int arizona_micdet_reading(void *priv)
|
|
{
|
|
struct arizona_extcon_info *info = priv;
|
|
struct arizona *arizona = info->arizona;
|
|
int ret, val;
|
|
|
|
if (info->detecting && arizona->pdata.micd_software_compare)
|
|
ret = arizona_micd_adc_read(info);
|
|
else
|
|
ret = arizona_micd_read(info);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
val = ret;
|
|
|
|
/* Due to jack detect this should never happen */
|
|
if (!(val & ARIZONA_MICD_STS)) {
|
|
dev_warn(arizona->dev, "Detected open circuit\n");
|
|
info->mic = false;
|
|
info->detecting = false;
|
|
arizona_identify_headphone(info);
|
|
return 0;
|
|
}
|
|
|
|
/* If we got a high impedence we should have a headset, report it. */
|
|
if (val & ARIZONA_MICD_LVL_8) {
|
|
info->mic = true;
|
|
info->detecting = false;
|
|
|
|
arizona_identify_headphone(info);
|
|
|
|
ret = extcon_set_state_sync(info->edev,
|
|
EXTCON_JACK_MICROPHONE, true);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Headset report failed: %d\n",
|
|
ret);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* 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 (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);
|
|
} 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++;
|
|
|
|
if (arizona->pdata.micd_software_compare)
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_ENA,
|
|
ARIZONA_MICD_ENA);
|
|
|
|
queue_delayed_work(system_power_efficient_wq,
|
|
&info->micd_timeout_work,
|
|
msecs_to_jiffies(arizona->pdata.micd_timeout));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If we're still detecting and we detect a short then we've
|
|
* got a headphone.
|
|
*/
|
|
dev_dbg(arizona->dev, "Headphone detected\n");
|
|
info->detecting = false;
|
|
|
|
arizona_identify_headphone(info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int arizona_button_reading(void *priv)
|
|
{
|
|
struct arizona_extcon_info *info = priv;
|
|
struct arizona *arizona = info->arizona;
|
|
int val, key, lvl, i;
|
|
|
|
val = arizona_micd_read(info);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
/*
|
|
* 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);
|
|
|
|
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 {
|
|
dev_err(arizona->dev, "Button out of range\n");
|
|
}
|
|
} 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);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
int ret;
|
|
|
|
cancel_delayed_work_sync(&info->micd_timeout_work);
|
|
|
|
mutex_lock(&info->lock);
|
|
|
|
/* If the cable was removed while measuring ignore the result */
|
|
ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);
|
|
if (ret < 0) {
|
|
dev_err(arizona->dev, "Failed to check cable state: %d\n",
|
|
ret);
|
|
mutex_unlock(&info->lock);
|
|
return;
|
|
} else if (!ret) {
|
|
dev_dbg(arizona->dev, "Ignoring MICDET for removed cable\n");
|
|
mutex_unlock(&info->lock);
|
|
return;
|
|
}
|
|
|
|
if (info->detecting)
|
|
arizona_micdet_reading(info);
|
|
else
|
|
arizona_button_reading(info);
|
|
|
|
pm_runtime_mark_last_busy(info->dev);
|
|
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);
|
|
|
|
mutex_lock(&info->lock);
|
|
if (!info->detecting)
|
|
debounce = 0;
|
|
mutex_unlock(&info->lock);
|
|
|
|
if (debounce)
|
|
queue_delayed_work(system_power_efficient_wq,
|
|
&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 int arizona_hpdet_wait(struct arizona_extcon_info *info)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
unsigned int val;
|
|
int i, ret;
|
|
|
|
for (i = 0; i < ARIZONA_HPDET_WAIT_COUNT; i++) {
|
|
ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2,
|
|
&val);
|
|
if (ret) {
|
|
dev_err(arizona->dev,
|
|
"Failed to read HPDET state: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
switch (info->hpdet_ip_version) {
|
|
case 0:
|
|
if (val & ARIZONA_HP_DONE)
|
|
return 0;
|
|
break;
|
|
default:
|
|
if (val & ARIZONA_HP_DONE_B)
|
|
return 0;
|
|
break;
|
|
}
|
|
|
|
msleep(ARIZONA_HPDET_WAIT_DELAY_MS);
|
|
}
|
|
|
|
dev_warn(arizona->dev, "HPDET did not appear to complete\n");
|
|
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
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 (info->micd_clamp) {
|
|
mask = ARIZONA_MICD_CLAMP_STS;
|
|
present = 0;
|
|
} else {
|
|
mask = ARIZONA_JD1_STS;
|
|
if (arizona->pdata.jd_invert)
|
|
present = 0;
|
|
else
|
|
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)
|
|
queue_delayed_work(system_power_efficient_wq,
|
|
&info->hpdet_work,
|
|
msecs_to_jiffies(HPDET_DEBOUNCE));
|
|
|
|
if (cancelled_mic) {
|
|
int micd_timeout = arizona->pdata.micd_timeout;
|
|
|
|
queue_delayed_work(system_power_efficient_wq,
|
|
&info->micd_timeout_work,
|
|
msecs_to_jiffies(micd_timeout));
|
|
}
|
|
|
|
goto out;
|
|
}
|
|
info->last_jackdet = val;
|
|
|
|
if (info->last_jackdet == present) {
|
|
dev_dbg(arizona->dev, "Detected jack\n");
|
|
ret = extcon_set_state_sync(info->edev,
|
|
EXTCON_MECHANICAL, true);
|
|
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Mechanical report failed: %d\n",
|
|
ret);
|
|
|
|
info->detecting = true;
|
|
info->mic = false;
|
|
info->jack_flips = 0;
|
|
|
|
if (!arizona->pdata.hpdet_acc_id) {
|
|
arizona_start_mic(info);
|
|
} else {
|
|
queue_delayed_work(system_power_efficient_wq,
|
|
&info->hpdet_work,
|
|
msecs_to_jiffies(HPDET_DEBOUNCE));
|
|
}
|
|
|
|
if (info->micd_clamp || !arizona->pdata.jd_invert)
|
|
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");
|
|
|
|
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->hpdet_done = false;
|
|
info->hpdet_retried = false;
|
|
|
|
for (i = 0; i < info->num_micd_ranges; i++)
|
|
input_report_key(info->input,
|
|
info->micd_ranges[i].key, 0);
|
|
input_sync(info->input);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(arizona_cable) - 1; i++) {
|
|
ret = extcon_set_state_sync(info->edev,
|
|
arizona_cable[i], false);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev,
|
|
"Removal report failed: %d\n", ret);
|
|
}
|
|
|
|
/*
|
|
* If the jack was removed during a headphone detection we
|
|
* need to wait for the headphone detection to finish, as
|
|
* it can not be aborted. We don't want to be able to start
|
|
* a new headphone detection from a fresh insert until this
|
|
* one is finished.
|
|
*/
|
|
arizona_hpdet_wait(info);
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_JACK_DETECT_DEBOUNCE,
|
|
ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB,
|
|
ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
static int arizona_extcon_get_micd_configs(struct device *dev,
|
|
struct arizona *arizona)
|
|
{
|
|
const char * const prop = "wlf,micd-configs";
|
|
const int entries_per_config = 3;
|
|
struct arizona_micd_config *micd_configs;
|
|
int nconfs, ret;
|
|
int i, j;
|
|
u32 *vals;
|
|
|
|
nconfs = device_property_count_u32(arizona->dev, prop);
|
|
if (nconfs <= 0)
|
|
return 0;
|
|
|
|
vals = kcalloc(nconfs, sizeof(u32), GFP_KERNEL);
|
|
if (!vals)
|
|
return -ENOMEM;
|
|
|
|
ret = device_property_read_u32_array(arizona->dev, prop, vals, nconfs);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
nconfs /= entries_per_config;
|
|
micd_configs = devm_kcalloc(dev, nconfs, sizeof(*micd_configs),
|
|
GFP_KERNEL);
|
|
if (!micd_configs) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0, j = 0; i < nconfs; ++i) {
|
|
micd_configs[i].src = vals[j++] ? ARIZONA_ACCDET_SRC : 0;
|
|
micd_configs[i].bias = vals[j++];
|
|
micd_configs[i].gpio = vals[j++];
|
|
}
|
|
|
|
arizona->pdata.micd_configs = micd_configs;
|
|
arizona->pdata.num_micd_configs = nconfs;
|
|
|
|
out:
|
|
kfree(vals);
|
|
return ret;
|
|
}
|
|
|
|
static int arizona_extcon_device_get_pdata(struct device *dev,
|
|
struct arizona *arizona)
|
|
{
|
|
struct arizona_pdata *pdata = &arizona->pdata;
|
|
unsigned int val = ARIZONA_ACCDET_MODE_HPL;
|
|
int ret;
|
|
|
|
device_property_read_u32(arizona->dev, "wlf,hpdet-channel", &val);
|
|
switch (val) {
|
|
case ARIZONA_ACCDET_MODE_HPL:
|
|
case ARIZONA_ACCDET_MODE_HPR:
|
|
pdata->hpdet_channel = val;
|
|
break;
|
|
default:
|
|
dev_err(arizona->dev,
|
|
"Wrong wlf,hpdet-channel DT value %d\n", val);
|
|
pdata->hpdet_channel = ARIZONA_ACCDET_MODE_HPL;
|
|
}
|
|
|
|
device_property_read_u32(arizona->dev, "wlf,micd-detect-debounce",
|
|
&pdata->micd_detect_debounce);
|
|
|
|
device_property_read_u32(arizona->dev, "wlf,micd-bias-start-time",
|
|
&pdata->micd_bias_start_time);
|
|
|
|
device_property_read_u32(arizona->dev, "wlf,micd-rate",
|
|
&pdata->micd_rate);
|
|
|
|
device_property_read_u32(arizona->dev, "wlf,micd-dbtime",
|
|
&pdata->micd_dbtime);
|
|
|
|
device_property_read_u32(arizona->dev, "wlf,micd-timeout-ms",
|
|
&pdata->micd_timeout);
|
|
|
|
pdata->micd_force_micbias = device_property_read_bool(arizona->dev,
|
|
"wlf,micd-force-micbias");
|
|
|
|
pdata->micd_software_compare = device_property_read_bool(arizona->dev,
|
|
"wlf,micd-software-compare");
|
|
|
|
pdata->jd_invert = device_property_read_bool(arizona->dev,
|
|
"wlf,jd-invert");
|
|
|
|
device_property_read_u32(arizona->dev, "wlf,gpsw", &pdata->gpsw);
|
|
|
|
pdata->jd_gpio5 = device_property_read_bool(arizona->dev,
|
|
"wlf,use-jd2");
|
|
pdata->jd_gpio5_nopull = device_property_read_bool(arizona->dev,
|
|
"wlf,use-jd2-nopull");
|
|
|
|
ret = arizona_extcon_get_micd_configs(dev, arizona);
|
|
if (ret < 0)
|
|
dev_err(arizona->dev, "Failed to read micd configs: %d\n", ret);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
unsigned int clamp_mode;
|
|
int jack_irq_fall, jack_irq_rise;
|
|
int ret, mode, i, j;
|
|
|
|
if (!arizona->dapm || !arizona->dapm->card)
|
|
return -EPROBE_DEFER;
|
|
|
|
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
|
|
if (!info)
|
|
return -ENOMEM;
|
|
|
|
if (!dev_get_platdata(arizona->dev))
|
|
arizona_extcon_device_get_pdata(&pdev->dev, arizona);
|
|
|
|
info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD");
|
|
if (IS_ERR(info->micvdd)) {
|
|
ret = PTR_ERR(info->micvdd);
|
|
dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
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_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_version = 1;
|
|
break;
|
|
}
|
|
break;
|
|
case WM5110:
|
|
case WM8280:
|
|
switch (arizona->rev) {
|
|
case 0 ... 2:
|
|
break;
|
|
default:
|
|
info->micd_clamp = true;
|
|
info->hpdet_ip_version = 2;
|
|
break;
|
|
}
|
|
break;
|
|
case WM8998:
|
|
case WM1814:
|
|
info->micd_clamp = true;
|
|
info->hpdet_ip_version = 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
info->edev = devm_extcon_dev_allocate(&pdev->dev, arizona_cable);
|
|
if (IS_ERR(info->edev)) {
|
|
dev_err(&pdev->dev, "failed to allocate extcon device\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = devm_extcon_dev_register(&pdev->dev, info->edev);
|
|
if (ret < 0) {
|
|
dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
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";
|
|
|
|
if (!pdata->micd_timeout)
|
|
pdata->micd_timeout = DEFAULT_MICD_TIMEOUT;
|
|
|
|
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 (pdata->micd_pol_gpio > 0) {
|
|
if (info->micd_modes[0].gpio)
|
|
mode = GPIOF_OUT_INIT_HIGH;
|
|
else
|
|
mode = GPIOF_OUT_INIT_LOW;
|
|
|
|
ret = devm_gpio_request_one(&pdev->dev, pdata->micd_pol_gpio,
|
|
mode, "MICD polarity");
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
|
|
pdata->micd_pol_gpio, ret);
|
|
goto err_register;
|
|
}
|
|
|
|
info->micd_pol_gpio = gpio_to_desc(pdata->micd_pol_gpio);
|
|
} else {
|
|
if (info->micd_modes[0].gpio)
|
|
mode = GPIOD_OUT_HIGH;
|
|
else
|
|
mode = GPIOD_OUT_LOW;
|
|
|
|
/* We can't use devm here because we need to do the get
|
|
* against the MFD device, as that is where the of_node
|
|
* will reside, but if we devm against that the GPIO
|
|
* will not be freed if the extcon driver is unloaded.
|
|
*/
|
|
info->micd_pol_gpio = gpiod_get_optional(arizona->dev,
|
|
"wlf,micd-pol",
|
|
GPIOD_OUT_LOW);
|
|
if (IS_ERR(info->micd_pol_gpio)) {
|
|
ret = PTR_ERR(info->micd_pol_gpio);
|
|
dev_err(arizona->dev,
|
|
"Failed to get microphone polarity GPIO: %d\n",
|
|
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_gpio;
|
|
}
|
|
}
|
|
|
|
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 (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);
|
|
|
|
switch (arizona->pdata.micd_dbtime) {
|
|
case MICD_DBTIME_FOUR_READINGS:
|
|
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_DBTIME_MASK,
|
|
ARIZONA_MICD_DBTIME);
|
|
break;
|
|
case MICD_DBTIME_TWO_READINGS:
|
|
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_DBTIME_MASK, 0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
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_gpio;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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_gpio;
|
|
}
|
|
|
|
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);
|
|
|
|
if (arizona->pdata.jd_invert)
|
|
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH_GP5H;
|
|
else
|
|
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL_GP5H;
|
|
} else {
|
|
if (arizona->pdata.jd_invert)
|
|
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH;
|
|
else
|
|
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL;
|
|
}
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_MICD_CLAMP_CONTROL,
|
|
ARIZONA_MICD_CLAMP_MODE_MASK, clamp_mode);
|
|
|
|
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 (info->micd_clamp) {
|
|
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_gpio;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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_gpio:
|
|
gpiod_put(info->micd_pol_gpio);
|
|
err_register:
|
|
pm_runtime_disable(&pdev->dev);
|
|
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;
|
|
bool change;
|
|
int ret;
|
|
|
|
ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_ENA, 0,
|
|
&change);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev, "Failed to disable micd on remove: %d\n",
|
|
ret);
|
|
} else if (change) {
|
|
regulator_disable(info->micvdd);
|
|
pm_runtime_put(info->dev);
|
|
}
|
|
|
|
gpiod_put(info->micd_pol_gpio);
|
|
|
|
pm_runtime_disable(&pdev->dev);
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_MICD_CLAMP_CONTROL,
|
|
ARIZONA_MICD_CLAMP_MODE_MASK, 0);
|
|
|
|
if (info->micd_clamp) {
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver arizona_extcon_driver = {
|
|
.driver = {
|
|
.name = "arizona-extcon",
|
|
},
|
|
.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");
|