| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dylan Reid | 1284 | 69.78% | 1 | 7.14% |
| Astrid Rost | 261 | 14.18% | 2 | 14.29% |
| Fang, Yang A | 185 | 10.05% | 3 | 21.43% |
| Anatol Pomozov | 80 | 4.35% | 2 | 14.29% |
| Cheng-Yi Chiang | 18 | 0.98% | 1 | 7.14% |
| Krzysztof Kozlowski | 5 | 0.27% | 1 | 7.14% |
| Lad Prabhakar | 3 | 0.16% | 1 | 7.14% |
| Thomas Gleixner | 2 | 0.11% | 1 | 7.14% |
| Uwe Kleine-König | 1 | 0.05% | 1 | 7.14% |
| Benson Leung | 1 | 0.05% | 1 | 7.14% |
| Total | 1840 | 14 |
// SPDX-License-Identifier: GPL-2.0-only /* * TS3A227E Autonomous Audio Accessory Detection and Configuration Switch * * Copyright (C) 2014 Google, Inc. */ #include <linux/gpio.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/input.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/acpi.h> #include <sound/core.h> #include <sound/jack.h> #include <sound/soc.h> #include "ts3a227e.h" struct ts3a227e { struct device *dev; struct regmap *regmap; struct snd_soc_jack *jack; bool plugged; bool mic_present; unsigned int buttons_held; int irq; }; /* Button values to be reported on the jack */ static const int ts3a227e_buttons[] = { SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2, SND_JACK_BTN_3, }; #define TS3A227E_NUM_BUTTONS 4 #define TS3A227E_JACK_MASK (SND_JACK_HEADPHONE | \ SND_JACK_MICROPHONE | \ SND_JACK_BTN_0 | \ SND_JACK_BTN_1 | \ SND_JACK_BTN_2 | \ SND_JACK_BTN_3) /* TS3A227E registers */ #define TS3A227E_REG_DEVICE_ID 0x00 #define TS3A227E_REG_INTERRUPT 0x01 #define TS3A227E_REG_KP_INTERRUPT 0x02 #define TS3A227E_REG_INTERRUPT_DISABLE 0x03 #define TS3A227E_REG_SETTING_1 0x04 #define TS3A227E_REG_SETTING_2 0x05 #define TS3A227E_REG_SETTING_3 0x06 #define TS3A227E_REG_SWITCH_CONTROL_1 0x07 #define TS3A227E_REG_SWITCH_CONTROL_2 0x08 #define TS3A227E_REG_SWITCH_STATUS_1 0x09 #define TS3A227E_REG_SWITCH_STATUS_2 0x0a #define TS3A227E_REG_ACCESSORY_STATUS 0x0b #define TS3A227E_REG_ADC_OUTPUT 0x0c #define TS3A227E_REG_KP_THRESHOLD_1 0x0d #define TS3A227E_REG_KP_THRESHOLD_2 0x0e #define TS3A227E_REG_KP_THRESHOLD_3 0x0f /* TS3A227E_REG_INTERRUPT 0x01 */ #define INS_REM_EVENT 0x01 #define DETECTION_COMPLETE_EVENT 0x02 /* TS3A227E_REG_KP_INTERRUPT 0x02 */ #define PRESS_MASK(idx) (0x01 << (2 * (idx))) #define RELEASE_MASK(idx) (0x02 << (2 * (idx))) /* TS3A227E_REG_INTERRUPT_DISABLE 0x03 */ #define INS_REM_INT_DISABLE 0x01 #define DETECTION_COMPLETE_INT_DISABLE 0x02 #define ADC_COMPLETE_INT_DISABLE 0x04 #define INTB_DISABLE 0x08 /* TS3A227E_REG_SETTING_1 0x4 */ #define DEBOUNCE_INSERTION_SETTING_SFT (0) #define DEBOUNCE_INSERTION_SETTING_MASK (0x7 << DEBOUNCE_PRESS_SETTING_SFT) /* TS3A227E_REG_SETTING_2 0x05 */ #define KP_ENABLE 0x04 /* TS3A227E_REG_SETTING_3 0x06 */ #define MICBIAS_SETTING_SFT 3 #define MICBIAS_SETTING_MASK (0x7 << MICBIAS_SETTING_SFT) #define DEBOUNCE_RELEASE_SETTING_SFT 2 #define DEBOUNCE_RELEASE_SETTING_MASK (0x1 << DEBOUNCE_RELEASE_SETTING_SFT) #define DEBOUNCE_PRESS_SETTING_SFT 0 #define DEBOUNCE_PRESS_SETTING_MASK (0x3 << DEBOUNCE_PRESS_SETTING_SFT) /* TS3A227E_REG_ACCESSORY_STATUS 0x0b */ #define TYPE_3_POLE 0x01 #define TYPE_4_POLE_OMTP 0x02 #define TYPE_4_POLE_STANDARD 0x04 #define JACK_INSERTED 0x08 #define EITHER_MIC_MASK (TYPE_4_POLE_OMTP | TYPE_4_POLE_STANDARD) static const struct reg_default ts3a227e_reg_defaults[] = { { TS3A227E_REG_DEVICE_ID, 0x10 }, { TS3A227E_REG_INTERRUPT, 0x00 }, { TS3A227E_REG_KP_INTERRUPT, 0x00 }, { TS3A227E_REG_INTERRUPT_DISABLE, 0x08 }, { TS3A227E_REG_SETTING_1, 0x23 }, { TS3A227E_REG_SETTING_2, 0x00 }, { TS3A227E_REG_SETTING_3, 0x0e }, { TS3A227E_REG_SWITCH_CONTROL_1, 0x00 }, { TS3A227E_REG_SWITCH_CONTROL_2, 0x00 }, { TS3A227E_REG_SWITCH_STATUS_1, 0x0c }, { TS3A227E_REG_SWITCH_STATUS_2, 0x00 }, { TS3A227E_REG_ACCESSORY_STATUS, 0x00 }, { TS3A227E_REG_ADC_OUTPUT, 0x00 }, { TS3A227E_REG_KP_THRESHOLD_1, 0x20 }, { TS3A227E_REG_KP_THRESHOLD_2, 0x40 }, { TS3A227E_REG_KP_THRESHOLD_3, 0x68 }, }; static bool ts3a227e_readable_reg(struct device *dev, unsigned int reg) { switch (reg) { case TS3A227E_REG_DEVICE_ID ... TS3A227E_REG_KP_THRESHOLD_3: return true; default: return false; } } static bool ts3a227e_writeable_reg(struct device *dev, unsigned int reg) { switch (reg) { case TS3A227E_REG_INTERRUPT_DISABLE ... TS3A227E_REG_SWITCH_CONTROL_2: case TS3A227E_REG_KP_THRESHOLD_1 ... TS3A227E_REG_KP_THRESHOLD_3: return true; default: return false; } } static bool ts3a227e_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case TS3A227E_REG_INTERRUPT ... TS3A227E_REG_INTERRUPT_DISABLE: case TS3A227E_REG_SETTING_1 ... TS3A227E_REG_SETTING_2: case TS3A227E_REG_SWITCH_STATUS_1 ... TS3A227E_REG_ADC_OUTPUT: return true; default: return false; } } static void ts3a227e_jack_report(struct ts3a227e *ts3a227e) { unsigned int i; int report = 0; if (!ts3a227e->jack) return; if (ts3a227e->plugged) report = SND_JACK_HEADPHONE; if (ts3a227e->mic_present) report |= SND_JACK_MICROPHONE; for (i = 0; i < TS3A227E_NUM_BUTTONS; i++) { if (ts3a227e->buttons_held & (1 << i)) report |= ts3a227e_buttons[i]; } snd_soc_jack_report(ts3a227e->jack, report, TS3A227E_JACK_MASK); } static void ts3a227e_new_jack_state(struct ts3a227e *ts3a227e, unsigned acc_reg) { bool plugged, mic_present; plugged = !!(acc_reg & JACK_INSERTED); mic_present = plugged && !!(acc_reg & EITHER_MIC_MASK); ts3a227e->plugged = plugged; if (mic_present != ts3a227e->mic_present) { ts3a227e->mic_present = mic_present; ts3a227e->buttons_held = 0; if (mic_present) { /* Enable key press detection. */ regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_2, KP_ENABLE, KP_ENABLE); } } } static irqreturn_t ts3a227e_interrupt(int irq, void *data) { struct ts3a227e *ts3a227e = (struct ts3a227e *)data; struct regmap *regmap = ts3a227e->regmap; unsigned int int_reg, kp_int_reg, acc_reg, i; struct device *dev = ts3a227e->dev; int ret; /* Check for plug/unplug. */ ret = regmap_read(regmap, TS3A227E_REG_INTERRUPT, &int_reg); if (ret) { dev_err(dev, "failed to clear interrupt ret=%d\n", ret); return IRQ_NONE; } if (int_reg & (DETECTION_COMPLETE_EVENT | INS_REM_EVENT)) { regmap_read(regmap, TS3A227E_REG_ACCESSORY_STATUS, &acc_reg); ts3a227e_new_jack_state(ts3a227e, acc_reg); } /* Report any key events. */ ret = regmap_read(regmap, TS3A227E_REG_KP_INTERRUPT, &kp_int_reg); if (ret) { dev_err(dev, "failed to clear key interrupt ret=%d\n", ret); return IRQ_NONE; } for (i = 0; i < TS3A227E_NUM_BUTTONS; i++) { if (kp_int_reg & PRESS_MASK(i)) ts3a227e->buttons_held |= (1 << i); if (kp_int_reg & RELEASE_MASK(i)) ts3a227e->buttons_held &= ~(1 << i); } ts3a227e_jack_report(ts3a227e); return IRQ_HANDLED; } /** * ts3a227e_enable_jack_detect - Specify a jack for event reporting * * @component: component to register the jack with * @jack: jack to use to report headset and button events on * * After this function has been called the headset insert/remove and button * events 0-3 will be routed to the given jack. Jack can be null to stop * reporting. */ int ts3a227e_enable_jack_detect(struct snd_soc_component *component, struct snd_soc_jack *jack) { struct ts3a227e *ts3a227e = snd_soc_component_get_drvdata(component); snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); ts3a227e->jack = jack; ts3a227e_jack_report(ts3a227e); return 0; } EXPORT_SYMBOL_GPL(ts3a227e_enable_jack_detect); static int ts3a227e_set_jack(struct snd_soc_component *component, struct snd_soc_jack *jack, void *data) { if (jack == NULL) return -EINVAL; return ts3a227e_enable_jack_detect(component, jack); } static int ts3a227e_get_jack_type(struct snd_soc_component *component) { return SND_JACK_HEADSET; } static const struct snd_soc_component_driver ts3a227e_soc_driver = { .name = "ti,ts3a227e", .set_jack = ts3a227e_set_jack, .get_jack_type = ts3a227e_get_jack_type, }; static const struct regmap_config ts3a227e_regmap_config = { .val_bits = 8, .reg_bits = 8, .max_register = TS3A227E_REG_KP_THRESHOLD_3, .readable_reg = ts3a227e_readable_reg, .writeable_reg = ts3a227e_writeable_reg, .volatile_reg = ts3a227e_volatile_reg, .cache_type = REGCACHE_RBTREE, .reg_defaults = ts3a227e_reg_defaults, .num_reg_defaults = ARRAY_SIZE(ts3a227e_reg_defaults), }; static int ts3a227e_parse_device_property(struct ts3a227e *ts3a227e, struct device *dev) { u32 value; u32 value_ms; u32 setting3_value = 0; u32 setting3_mask = 0; int err; err = device_property_read_u32(dev, "ti,micbias", &value); if (!err) { setting3_mask = MICBIAS_SETTING_MASK; setting3_value = (value << MICBIAS_SETTING_SFT) & MICBIAS_SETTING_MASK; } err = device_property_read_u32(dev, "ti,debounce-release-ms", &value_ms); if (!err) { value = (value_ms > 10); setting3_mask |= DEBOUNCE_RELEASE_SETTING_MASK; setting3_value |= (value << DEBOUNCE_RELEASE_SETTING_SFT) & DEBOUNCE_RELEASE_SETTING_MASK; } err = device_property_read_u32(dev, "ti,debounce-press-ms", &value_ms); if (!err) { value = (value_ms + 20) / 40; if (value > 3) value = 3; setting3_mask |= DEBOUNCE_PRESS_SETTING_MASK; setting3_value |= (value << DEBOUNCE_PRESS_SETTING_SFT) & DEBOUNCE_PRESS_SETTING_MASK; } if (setting3_mask) regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_3, setting3_mask, setting3_value); err = device_property_read_u32(dev, "ti,debounce-insertion-ms", &value_ms); if (!err) { if (value_ms < 165) value = (value_ms + 15) / 30; else if (value_ms < 1500) value = 6; else value = 7; regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_1, DEBOUNCE_INSERTION_SETTING_MASK, (value << DEBOUNCE_INSERTION_SETTING_SFT) & DEBOUNCE_INSERTION_SETTING_MASK); } return 0; } static int ts3a227e_i2c_probe(struct i2c_client *i2c) { struct ts3a227e *ts3a227e; struct device *dev = &i2c->dev; int ret; unsigned int acc_reg; ts3a227e = devm_kzalloc(&i2c->dev, sizeof(*ts3a227e), GFP_KERNEL); if (ts3a227e == NULL) return -ENOMEM; i2c_set_clientdata(i2c, ts3a227e); ts3a227e->dev = dev; ts3a227e->irq = i2c->irq; ts3a227e->regmap = devm_regmap_init_i2c(i2c, &ts3a227e_regmap_config); if (IS_ERR(ts3a227e->regmap)) return PTR_ERR(ts3a227e->regmap); ret = ts3a227e_parse_device_property(ts3a227e, dev); if (ret) { dev_err(dev, "Failed to parse device property: %d\n", ret); return ret; } ret = devm_request_threaded_irq(dev, i2c->irq, NULL, ts3a227e_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "TS3A227E", ts3a227e); if (ret) { dev_err(dev, "Cannot request irq %d (%d)\n", i2c->irq, ret); return ret; } ret = devm_snd_soc_register_component(&i2c->dev, &ts3a227e_soc_driver, NULL, 0); if (ret) return ret; /* Enable interrupts except for ADC complete. */ regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_INTERRUPT_DISABLE, INTB_DISABLE | ADC_COMPLETE_INT_DISABLE, ADC_COMPLETE_INT_DISABLE); /* Read jack status because chip might not trigger interrupt at boot. */ regmap_read(ts3a227e->regmap, TS3A227E_REG_ACCESSORY_STATUS, &acc_reg); ts3a227e_new_jack_state(ts3a227e, acc_reg); ts3a227e_jack_report(ts3a227e); return 0; } #ifdef CONFIG_PM_SLEEP static int ts3a227e_suspend(struct device *dev) { struct ts3a227e *ts3a227e = dev_get_drvdata(dev); dev_dbg(ts3a227e->dev, "suspend disable irq\n"); disable_irq(ts3a227e->irq); return 0; } static int ts3a227e_resume(struct device *dev) { struct ts3a227e *ts3a227e = dev_get_drvdata(dev); dev_dbg(ts3a227e->dev, "resume enable irq\n"); enable_irq(ts3a227e->irq); return 0; } #endif static const struct dev_pm_ops ts3a227e_pm = { SET_SYSTEM_SLEEP_PM_OPS(ts3a227e_suspend, ts3a227e_resume) }; static const struct i2c_device_id ts3a227e_i2c_ids[] = { { "ts3a227e" }, { } }; MODULE_DEVICE_TABLE(i2c, ts3a227e_i2c_ids); #ifdef CONFIG_OF static const struct of_device_id ts3a227e_of_match[] = { { .compatible = "ti,ts3a227e", }, { } }; MODULE_DEVICE_TABLE(of, ts3a227e_of_match); #endif #ifdef CONFIG_ACPI static struct acpi_device_id ts3a227e_acpi_match[] = { { "104C227E", 0 }, {}, }; MODULE_DEVICE_TABLE(acpi, ts3a227e_acpi_match); #endif static struct i2c_driver ts3a227e_driver = { .driver = { .name = "ts3a227e", .pm = &ts3a227e_pm, .of_match_table = of_match_ptr(ts3a227e_of_match), .acpi_match_table = ACPI_PTR(ts3a227e_acpi_match), }, .probe = ts3a227e_i2c_probe, .id_table = ts3a227e_i2c_ids, }; module_i2c_driver(ts3a227e_driver); MODULE_DESCRIPTION("ASoC ts3a227e driver"); MODULE_AUTHOR("Dylan Reid <dgreid@chromium.org>"); MODULE_LICENSE("GPL v2");
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