diff options
Diffstat (limited to 'sound/soc/codecs/cs42l42.c')
-rw-r--r-- | sound/soc/codecs/cs42l42.c | 323 |
1 files changed, 217 insertions, 106 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 811b7b1c9732..bf982e145e94 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -25,6 +25,7 @@ #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/of_device.h> +#include <linux/pm_runtime.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -461,64 +462,78 @@ static const struct snd_kcontrol_new cs42l42_snd_controls[] = { 0x3f, 1, mixer_tlv) }; -static int cs42l42_hpdrv_evt(struct snd_soc_dapm_widget *w, - struct snd_kcontrol *kcontrol, int event) -{ - struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); - - if (event & SND_SOC_DAPM_POST_PMU) { - /* Enable the channels */ - snd_soc_component_update_bits(component, CS42L42_ASP_RX_DAI0_EN, - CS42L42_ASP_RX0_CH_EN_MASK, - (CS42L42_ASP_RX0_CH1_EN | - CS42L42_ASP_RX0_CH2_EN) << - CS42L42_ASP_RX0_CH_EN_SHIFT); - - /* Power up */ - snd_soc_component_update_bits(component, CS42L42_PWR_CTL1, - CS42L42_ASP_DAI_PDN_MASK | CS42L42_MIXER_PDN_MASK | - CS42L42_HP_PDN_MASK, 0); - } else if (event & SND_SOC_DAPM_PRE_PMD) { - /* Disable the channels */ - snd_soc_component_update_bits(component, CS42L42_ASP_RX_DAI0_EN, - CS42L42_ASP_RX0_CH_EN_MASK, 0); - - /* Power down */ - snd_soc_component_update_bits(component, CS42L42_PWR_CTL1, - CS42L42_ASP_DAI_PDN_MASK | CS42L42_MIXER_PDN_MASK | - CS42L42_HP_PDN_MASK, - CS42L42_ASP_DAI_PDN_MASK | CS42L42_MIXER_PDN_MASK | - CS42L42_HP_PDN_MASK); - } else { - dev_err(component->dev, "Invalid event 0x%x\n", event); - } - return 0; -} - static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = { + /* Playback Path */ SND_SOC_DAPM_OUTPUT("HP"), - SND_SOC_DAPM_AIF_IN("SDIN", NULL, 0, CS42L42_ASP_CLK_CFG, - CS42L42_ASP_SCLK_EN_SHIFT, false), - SND_SOC_DAPM_OUT_DRV_E("HPDRV", SND_SOC_NOPM, 0, - 0, NULL, 0, cs42l42_hpdrv_evt, - SND_SOC_DAPM_POST_PMU | - SND_SOC_DAPM_PRE_PMD) + SND_SOC_DAPM_DAC("DAC", NULL, CS42L42_PWR_CTL1, CS42L42_HP_PDN_SHIFT, 1), + SND_SOC_DAPM_MIXER("MIXER", CS42L42_PWR_CTL1, CS42L42_MIXER_PDN_SHIFT, 1, NULL, 0), + SND_SOC_DAPM_AIF_IN("SDIN1", NULL, 0, CS42L42_ASP_RX_DAI0_EN, CS42L42_ASP_RX0_CH1_SHIFT, 0), + SND_SOC_DAPM_AIF_IN("SDIN2", NULL, 1, CS42L42_ASP_RX_DAI0_EN, CS42L42_ASP_RX0_CH2_SHIFT, 0), + + /* Playback Requirements */ + SND_SOC_DAPM_SUPPLY("ASP DAI0", CS42L42_PWR_CTL1, CS42L42_ASP_DAI_PDN_SHIFT, 1, NULL, 0), + + /* Capture Path */ + SND_SOC_DAPM_INPUT("HS"), + SND_SOC_DAPM_ADC("ADC", NULL, CS42L42_PWR_CTL1, CS42L42_ADC_PDN_SHIFT, 1), + SND_SOC_DAPM_AIF_OUT("SDOUT1", NULL, 0, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH1_SHIFT, 0), + SND_SOC_DAPM_AIF_OUT("SDOUT2", NULL, 1, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH2_SHIFT, 0), + + /* Capture Requirements */ + SND_SOC_DAPM_SUPPLY("ASP DAO0", CS42L42_PWR_CTL1, CS42L42_ASP_DAO_PDN_SHIFT, 1, NULL, 0), + SND_SOC_DAPM_SUPPLY("ASP TX EN", CS42L42_ASP_TX_SZ_EN, CS42L42_ASP_TX_EN_SHIFT, 0, NULL, 0), + + /* Playback/Capture Requirements */ + SND_SOC_DAPM_SUPPLY("SCLK", CS42L42_ASP_CLK_CFG, CS42L42_ASP_SCLK_EN_SHIFT, 0, NULL, 0), }; static const struct snd_soc_dapm_route cs42l42_audio_map[] = { - {"SDIN", NULL, "Playback"}, - {"HPDRV", NULL, "SDIN"}, - {"HP", NULL, "HPDRV"} + /* Playback Path */ + {"HP", NULL, "DAC"}, + {"DAC", NULL, "MIXER"}, + {"MIXER", NULL, "SDIN1"}, + {"MIXER", NULL, "SDIN2"}, + {"SDIN1", NULL, "Playback"}, + {"SDIN2", NULL, "Playback"}, + + /* Playback Requirements */ + {"SDIN1", NULL, "ASP DAI0"}, + {"SDIN2", NULL, "ASP DAI0"}, + {"SDIN1", NULL, "SCLK"}, + {"SDIN2", NULL, "SCLK"}, + + /* Capture Path */ + {"ADC", NULL, "HS"}, + { "SDOUT1", NULL, "ADC" }, + { "SDOUT2", NULL, "ADC" }, + { "Capture", NULL, "SDOUT1" }, + { "Capture", NULL, "SDOUT2" }, + + /* Capture Requirements */ + { "SDOUT1", NULL, "ASP DAO0" }, + { "SDOUT2", NULL, "ASP DAO0" }, + { "SDOUT1", NULL, "SCLK" }, + { "SDOUT2", NULL, "SCLK" }, + { "SDOUT1", NULL, "ASP TX EN" }, + { "SDOUT2", NULL, "ASP TX EN" }, }; static int cs42l42_component_probe(struct snd_soc_component *component) { struct cs42l42_private *cs42l42 = (struct cs42l42_private *)snd_soc_component_get_drvdata(component); + struct snd_soc_card *crd = component->card; + int ret = 0; cs42l42->component = component; - return 0; + ret = snd_soc_card_jack_new(crd, "CS42L42 Headset", SND_JACK_HEADSET | SND_JACK_BTN_0 | + SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3, + &cs42l42->jack, NULL, 0); + if (ret < 0) + dev_err(component->dev, "Cannot create CS42L42 Headset: %d\n", ret); + + return ret; } static const struct snd_soc_component_driver soc_component_dev_cs42l42 = { @@ -534,6 +549,24 @@ static const struct snd_soc_component_driver soc_component_dev_cs42l42 = { .non_legacy_dai_naming = 1, }; +/* Switch to SCLK. Atomic delay after the write to allow the switch to complete. */ +static const struct reg_sequence cs42l42_to_sclk_seq[] = { + { + .reg = CS42L42_OSC_SWITCH, + .def = CS42L42_SCLK_PRESENT_MASK, + .delay_us = CS42L42_CLOCK_SWITCH_DELAY_US, + }, +}; + +/* Switch to OSC. Atomic delay after the write to allow the switch to complete. */ +static const struct reg_sequence cs42l42_to_osc_seq[] = { + { + .reg = CS42L42_OSC_SWITCH, + .def = 0, + .delay_us = CS42L42_CLOCK_SWITCH_DELAY_US, + }, +}; + struct cs42l42_pll_params { u32 sclk; u8 mclk_div; @@ -573,10 +606,16 @@ static int cs42l42_pll_config(struct snd_soc_component *component) { struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); int i; + u32 clk; u32 fsync; + if (!cs42l42->sclk) + clk = cs42l42->bclk; + else + clk = cs42l42->sclk; + for (i = 0; i < ARRAY_SIZE(pll_ratio_table); i++) { - if (pll_ratio_table[i].sclk == cs42l42->sclk) { + if (pll_ratio_table[i].sclk == clk) { /* Configure the internal sample rate */ snd_soc_component_update_bits(component, CS42L42_MCLK_CTL, CS42L42_INTERNAL_FS_MASK, @@ -596,12 +635,12 @@ static int cs42l42_pll_config(struct snd_soc_component *component) (pll_ratio_table[i].mclk_div << CS42L42_MCLKDIV_SHIFT)); /* Set up the LRCLK */ - fsync = cs42l42->sclk / cs42l42->srate; - if (((fsync * cs42l42->srate) != cs42l42->sclk) + fsync = clk / cs42l42->srate; + if (((fsync * cs42l42->srate) != clk) || ((fsync % 2) != 0)) { dev_err(component->dev, "Unsupported sclk %d/sample rate %d\n", - cs42l42->sclk, + clk, cs42l42->srate); return -EINVAL; } @@ -768,12 +807,25 @@ static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); + unsigned int channels = params_channels(params); unsigned int width = (params_width(params) / 8) - 1; unsigned int val = 0; cs42l42->srate = params_rate(params); + cs42l42->bclk = snd_soc_params_to_bclk(params); switch(substream->stream) { + case SNDRV_PCM_STREAM_CAPTURE: + if (channels == 2) { + val |= CS42L42_ASP_TX_CH2_AP_MASK; + val |= width << CS42L42_ASP_TX_CH2_RES_SHIFT; + } + val |= width << CS42L42_ASP_TX_CH1_RES_SHIFT; + + snd_soc_component_update_bits(component, CS42L42_ASP_TX_CH_AP_RES, + CS42L42_ASP_TX_CH1_AP_MASK | CS42L42_ASP_TX_CH2_AP_MASK | + CS42L42_ASP_TX_CH2_RES_MASK | CS42L42_ASP_TX_CH1_RES_MASK, val); + break; case SNDRV_PCM_STREAM_PLAYBACK: val |= width << CS42L42_ASP_RX_CH_RES_SHIFT; /* channel 1 on low LRCLK */ @@ -804,52 +856,73 @@ static int cs42l42_set_sysclk(struct snd_soc_dai *dai, return 0; } -static int cs42l42_mute(struct snd_soc_dai *dai, int mute, int direction) +static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream) { struct snd_soc_component *component = dai->component; + struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); unsigned int regval; u8 fullScaleVol; + int ret; if (mute) { - /* Mark SCLK as not present to turn on the internal - * oscillator. - */ - snd_soc_component_update_bits(component, CS42L42_OSC_SWITCH, - CS42L42_SCLK_PRESENT_MASK, 0); - - snd_soc_component_update_bits(component, CS42L42_PLL_CTL1, - CS42L42_PLL_START_MASK, - 0 << CS42L42_PLL_START_SHIFT); - /* Mute the headphone */ - snd_soc_component_update_bits(component, CS42L42_HP_CTL, - CS42L42_HP_ANA_AMUTE_MASK | - CS42L42_HP_ANA_BMUTE_MASK, - CS42L42_HP_ANA_AMUTE_MASK | - CS42L42_HP_ANA_BMUTE_MASK); - } else { - snd_soc_component_update_bits(component, CS42L42_PLL_CTL1, - CS42L42_PLL_START_MASK, - 1 << CS42L42_PLL_START_SHIFT); - /* Read the headphone load */ - regval = snd_soc_component_read(component, CS42L42_LOAD_DET_RCSTAT); - if (((regval & CS42L42_RLA_STAT_MASK) >> - CS42L42_RLA_STAT_SHIFT) == CS42L42_RLA_STAT_15_OHM) { - fullScaleVol = CS42L42_HP_FULL_SCALE_VOL_MASK; - } else { - fullScaleVol = 0; + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + snd_soc_component_update_bits(component, CS42L42_HP_CTL, + CS42L42_HP_ANA_AMUTE_MASK | + CS42L42_HP_ANA_BMUTE_MASK, + CS42L42_HP_ANA_AMUTE_MASK | + CS42L42_HP_ANA_BMUTE_MASK); + + cs42l42->stream_use &= ~(1 << stream); + if(!cs42l42->stream_use) { + /* + * Switch to the internal oscillator. + * SCLK must remain running until after this clock switch. + * Without a source of clock the I2C bus doesn't work. + */ + regmap_multi_reg_write(cs42l42->regmap, cs42l42_to_osc_seq, + ARRAY_SIZE(cs42l42_to_osc_seq)); + snd_soc_component_update_bits(component, CS42L42_PLL_CTL1, + CS42L42_PLL_START_MASK, 0); } + } else { + if (!cs42l42->stream_use) { + /* SCLK must be running before codec unmute */ + if ((cs42l42->bclk < 11289600) && (cs42l42->sclk < 11289600)) { + snd_soc_component_update_bits(component, CS42L42_PLL_CTL1, + CS42L42_PLL_START_MASK, 1); + ret = regmap_read_poll_timeout(cs42l42->regmap, + CS42L42_PLL_LOCK_STATUS, + regval, + (regval & 1), + CS42L42_PLL_LOCK_POLL_US, + CS42L42_PLL_LOCK_TIMEOUT_US); + if (ret < 0) + dev_warn(component->dev, "PLL failed to lock: %d\n", ret); + } - /* Un-mute the headphone, set the full scale volume flag */ - snd_soc_component_update_bits(component, CS42L42_HP_CTL, - CS42L42_HP_ANA_AMUTE_MASK | - CS42L42_HP_ANA_BMUTE_MASK | - CS42L42_HP_FULL_SCALE_VOL_MASK, fullScaleVol); + /* Mark SCLK as present, turn off internal oscillator */ + regmap_multi_reg_write(cs42l42->regmap, cs42l42_to_sclk_seq, + ARRAY_SIZE(cs42l42_to_sclk_seq)); + } + cs42l42->stream_use |= 1 << stream; + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + /* Read the headphone load */ + regval = snd_soc_component_read(component, CS42L42_LOAD_DET_RCSTAT); + if (((regval & CS42L42_RLA_STAT_MASK) >> CS42L42_RLA_STAT_SHIFT) == + CS42L42_RLA_STAT_15_OHM) { + fullScaleVol = CS42L42_HP_FULL_SCALE_VOL_MASK; + } else { + fullScaleVol = 0; + } - /* Mark SCLK as present, turn off internal oscillator */ - snd_soc_component_update_bits(component, CS42L42_OSC_SWITCH, - CS42L42_SCLK_PRESENT_MASK, - CS42L42_SCLK_PRESENT_MASK); + /* Un-mute the headphone, set the full scale volume flag */ + snd_soc_component_update_bits(component, CS42L42_HP_CTL, + CS42L42_HP_ANA_AMUTE_MASK | + CS42L42_HP_ANA_BMUTE_MASK | + CS42L42_HP_FULL_SCALE_VOL_MASK, fullScaleVol); + } } return 0; @@ -864,8 +937,7 @@ static const struct snd_soc_dai_ops cs42l42_ops = { .hw_params = cs42l42_pcm_hw_params, .set_fmt = cs42l42_set_dai_fmt, .set_sysclk = cs42l42_set_sysclk, - .mute_stream = cs42l42_mute, - .no_capture_mute = 1, + .mute_stream = cs42l42_mute_stream, }; static struct snd_soc_dai_driver cs42l42_dai = { @@ -884,6 +956,8 @@ static struct snd_soc_dai_driver cs42l42_dai = { .rates = SNDRV_PCM_RATE_8000_192000, .formats = CS42L42_FORMATS, }, + .symmetric_rate = 1, + .symmetric_sample_bits = 1, .ops = &cs42l42_ops, }; @@ -1169,7 +1243,7 @@ static void cs42l42_cancel_hs_type_detect(struct cs42l42_private *cs42l42) (3 << CS42L42_HSDET_AUTO_TIME_SHIFT)); } -static void cs42l42_handle_button_press(struct cs42l42_private *cs42l42) +static int cs42l42_handle_button_press(struct cs42l42_private *cs42l42) { int bias_level; unsigned int detect_status; @@ -1212,17 +1286,24 @@ static void cs42l42_handle_button_press(struct cs42l42_private *cs42l42) switch (bias_level) { case 1: /* Function C button press */ + bias_level = SND_JACK_BTN_2; dev_dbg(cs42l42->component->dev, "Function C button press\n"); break; case 2: /* Function B button press */ + bias_level = SND_JACK_BTN_1; dev_dbg(cs42l42->component->dev, "Function B button press\n"); break; case 3: /* Function D button press */ + bias_level = SND_JACK_BTN_3; dev_dbg(cs42l42->component->dev, "Function D button press\n"); break; case 4: /* Function A button press */ + bias_level = SND_JACK_BTN_0; dev_dbg(cs42l42->component->dev, "Function A button press\n"); break; + default: + bias_level = 0; + break; } /* Set button detect level sensitivity back to default */ @@ -1252,6 +1333,8 @@ static void cs42l42_handle_button_press(struct cs42l42_private *cs42l42) (0 << CS42L42_M_HSBIAS_HIZ_SHIFT) | (1 << CS42L42_M_SHORT_RLS_SHIFT) | (1 << CS42L42_M_SHORT_DET_SHIFT)); + + return bias_level; } struct cs42l42_irq_params { @@ -1296,6 +1379,8 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) unsigned int current_plug_status; unsigned int current_button_status; unsigned int i; + int report = 0; + /* Read sticky registers to clear interurpt */ for (i = 0; i < ARRAY_SIZE(stickies); i++) { @@ -1322,9 +1407,20 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) if ((~masks[5]) & irq_params_table[5].mask) { if (stickies[5] & CS42L42_HSDET_AUTO_DONE_MASK) { cs42l42_process_hs_type_detect(cs42l42); - dev_dbg(component->dev, - "Auto detect done (%d)\n", - cs42l42->hs_type); + switch(cs42l42->hs_type){ + case CS42L42_PLUG_CTIA: + case CS42L42_PLUG_OMTP: + snd_soc_jack_report(&cs42l42->jack, SND_JACK_HEADSET, + SND_JACK_HEADSET); + break; + case CS42L42_PLUG_HEADPHONE: + snd_soc_jack_report(&cs42l42->jack, SND_JACK_HEADPHONE, + SND_JACK_HEADPHONE); + break; + default: + break; + } + dev_dbg(component->dev, "Auto detect done (%d)\n", cs42l42->hs_type); } } @@ -1342,8 +1438,19 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) if (cs42l42->plug_state != CS42L42_TS_UNPLUG) { cs42l42->plug_state = CS42L42_TS_UNPLUG; cs42l42_cancel_hs_type_detect(cs42l42); - dev_dbg(component->dev, - "Unplug event\n"); + + switch(cs42l42->hs_type){ + case CS42L42_PLUG_CTIA: + case CS42L42_PLUG_OMTP: + snd_soc_jack_report(&cs42l42->jack, 0, SND_JACK_HEADSET); + break; + case CS42L42_PLUG_HEADPHONE: + snd_soc_jack_report(&cs42l42->jack, 0, SND_JACK_HEADPHONE); + break; + default: + break; + } + dev_dbg(component->dev, "Unplug event\n"); } break; @@ -1358,14 +1465,15 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) if (!(current_button_status & CS42L42_M_HSBIAS_HIZ_MASK)) { - if (current_button_status & - CS42L42_M_DETECT_TF_MASK) { - dev_dbg(component->dev, - "Button released\n"); - } else if (current_button_status & - CS42L42_M_DETECT_FT_MASK) { - cs42l42_handle_button_press(cs42l42); + if (current_button_status & CS42L42_M_DETECT_TF_MASK) { + dev_dbg(component->dev, "Button released\n"); + report = 0; + } else if (current_button_status & CS42L42_M_DETECT_FT_MASK) { + report = cs42l42_handle_button_press(cs42l42); + } + snd_soc_jack_report(&cs42l42->jack, report, SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3); } } @@ -1749,8 +1857,10 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client, /* Reset the Device */ cs42l42->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(cs42l42->reset_gpio)) - return PTR_ERR(cs42l42->reset_gpio); + if (IS_ERR(cs42l42->reset_gpio)) { + ret = PTR_ERR(cs42l42->reset_gpio); + goto err_disable; + } if (cs42l42->reset_gpio) { dev_dbg(&i2c_client->dev, "Found reset GPIO\n"); @@ -1784,13 +1894,13 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client, dev_err(&i2c_client->dev, "CS42L42 Device ID (%X). Expected %X\n", devid, CS42L42_CHIP_ID); - return ret; + goto err_disable; } ret = regmap_read(cs42l42->regmap, CS42L42_REVID, ®); if (ret < 0) { dev_err(&i2c_client->dev, "Get Revision ID failed\n"); - return ret; + goto err_disable; } dev_info(&i2c_client->dev, @@ -1816,7 +1926,7 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client, if (i2c_client->dev.of_node) { ret = cs42l42_handle_device_data(i2c_client, cs42l42); if (ret != 0) - return ret; + goto err_disable; } /* Setup headset detection */ @@ -1842,8 +1952,9 @@ static int cs42l42_i2c_remove(struct i2c_client *i2c_client) { struct cs42l42_private *cs42l42 = i2c_get_clientdata(i2c_client); - /* Hold down reset */ - gpiod_set_value_cansleep(cs42l42->reset_gpio, 0); + devm_free_irq(&i2c_client->dev, i2c_client->irq, cs42l42); + pm_runtime_suspend(&i2c_client->dev); + pm_runtime_disable(&i2c_client->dev); return 0; } |