From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Sep 2015 01:01:14 -0300 Subject: Linux-libre 4.2-gnu --- sound/soc/codecs/wm8741.c | 190 ++++++++++++++++++++++++++++++++++------------ 1 file changed, 142 insertions(+), 48 deletions(-) (limited to 'sound/soc/codecs/wm8741.c') diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c index 9e71c7689..b34623786 100644 --- a/sound/soc/codecs/wm8741.c +++ b/sound/soc/codecs/wm8741.c @@ -41,6 +41,7 @@ static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { /* codec private data */ struct wm8741_priv { + struct wm8741_platform_data pdata; struct regmap *regmap; struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; unsigned int sysclk; @@ -87,13 +88,27 @@ static int wm8741_reset(struct snd_soc_codec *codec) static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, -12700, 13, 0); static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 400, 0); -static const struct snd_kcontrol_new wm8741_snd_controls[] = { +static const struct snd_kcontrol_new wm8741_snd_controls_stereo[] = { SOC_DOUBLE_R_TLV("Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, WM8741_DACRLSB_ATTENUATION, 1, 255, 1, dac_tlv_fine), SOC_DOUBLE_R_TLV("Playback Volume", WM8741_DACLMSB_ATTENUATION, WM8741_DACRMSB_ATTENUATION, 0, 511, 1, dac_tlv), }; +static const struct snd_kcontrol_new wm8741_snd_controls_mono_left[] = { +SOC_SINGLE_TLV("Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, + 1, 255, 1, dac_tlv_fine), +SOC_SINGLE_TLV("Playback Volume", WM8741_DACLMSB_ATTENUATION, + 0, 511, 1, dac_tlv), +}; + +static const struct snd_kcontrol_new wm8741_snd_controls_mono_right[] = { +SOC_SINGLE_TLV("Fine Playback Volume", WM8741_DACRLSB_ATTENUATION, + 1, 255, 1, dac_tlv_fine), +SOC_SINGLE_TLV("Playback Volume", WM8741_DACRMSB_ATTENUATION, + 0, 511, 1, dac_tlv), +}; + static const struct snd_soc_dapm_widget wm8741_dapm_widgets[] = { SND_SOC_DAPM_DAC("DACL", "Playback", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_DAC("DACR", "Playback", SND_SOC_NOPM, 0, 0), @@ -110,18 +125,6 @@ static const struct snd_soc_dapm_route wm8741_dapm_routes[] = { { "VOUTRN", NULL, "DACR" }, }; -static struct { - int value; - int ratio; -} lrclk_ratios[WM8741_NUM_RATES] = { - { 1, 128 }, - { 2, 192 }, - { 3, 256 }, - { 4, 384 }, - { 5, 512 }, - { 6, 768 }, -}; - static const unsigned int rates_11289[] = { 44100, 88200, }; @@ -194,25 +197,16 @@ static const struct snd_pcm_hw_constraint_list constraints_36864 = { .list = rates_36864, }; - static int wm8741_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); - /* The set of sample rates that can be supported depends on the - * MCLK supplied to the CODEC - enforce this. - */ - if (!wm8741->sysclk) { - dev_err(codec->dev, - "No MCLK configured, call set_sysclk() on init\n"); - return -EINVAL; - } - - snd_pcm_hw_constraint_list(substream->runtime, 0, - SNDRV_PCM_HW_PARAM_RATE, - wm8741->sysclk_constraints); + if (wm8741->sysclk) + snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + wm8741->sysclk_constraints); return 0; } @@ -226,17 +220,24 @@ static int wm8741_hw_params(struct snd_pcm_substream *substream, u16 iface = snd_soc_read(codec, WM8741_FORMAT_CONTROL) & 0x1FC; int i; - /* Find a supported LRCLK ratio */ - for (i = 0; i < ARRAY_SIZE(lrclk_ratios); i++) { - if (wm8741->sysclk / params_rate(params) == - lrclk_ratios[i].ratio) + /* The set of sample rates that can be supported depends on the + * MCLK supplied to the CODEC - enforce this. + */ + if (!wm8741->sysclk) { + dev_err(codec->dev, + "No MCLK configured, call set_sysclk() on init or in hw_params\n"); + return -EINVAL; + } + + /* Find a supported LRCLK rate */ + for (i = 0; i < wm8741->sysclk_constraints->count; i++) { + if (wm8741->sysclk_constraints->list[i] == params_rate(params)) break; } - /* Should never happen, should be handled by constraints */ - if (i == ARRAY_SIZE(lrclk_ratios)) { - dev_err(codec->dev, "MCLK/fs ratio %d unsupported\n", - wm8741->sysclk / params_rate(params)); + if (i == wm8741->sysclk_constraints->count) { + dev_err(codec->dev, "LRCLK %d unsupported with MCLK %d\n", + params_rate(params), wm8741->sysclk); return -EINVAL; } @@ -259,8 +260,8 @@ static int wm8741_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - dev_dbg(codec->dev, "wm8741_hw_params: bit size param = %d", - params_width(params)); + dev_dbg(codec->dev, "wm8741_hw_params: bit size param = %d, rate param = %d", + params_width(params), params_rate(params)); snd_soc_write(codec, WM8741_FORMAT_CONTROL, iface); return 0; @@ -275,6 +276,11 @@ static int wm8741_set_dai_sysclk(struct snd_soc_dai *codec_dai, dev_dbg(codec->dev, "wm8741_set_dai_sysclk info: freq=%dHz\n", freq); switch (freq) { + case 0: + wm8741->sysclk_constraints = NULL; + wm8741->sysclk = freq; + return 0; + case 11289600: wm8741->sysclk_constraints = &constraints_11289; wm8741->sysclk = freq; @@ -398,7 +404,7 @@ static struct snd_soc_dai_driver wm8741_dai = { .name = "wm8741", .playback = { .stream_name = "Playback", - .channels_min = 2, /* Mono modes not yet supported */ + .channels_min = 2, .channels_max = 2, .rates = WM8741_RATES, .formats = WM8741_FORMATS, @@ -416,6 +422,65 @@ static int wm8741_resume(struct snd_soc_codec *codec) #define wm8741_resume NULL #endif +static int wm8741_configure(struct snd_soc_codec *codec) +{ + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); + + /* Configure differential mode */ + switch (wm8741->pdata.diff_mode) { + case WM8741_DIFF_MODE_STEREO: + case WM8741_DIFF_MODE_STEREO_REVERSED: + case WM8741_DIFF_MODE_MONO_LEFT: + case WM8741_DIFF_MODE_MONO_RIGHT: + snd_soc_update_bits(codec, WM8741_MODE_CONTROL_2, + WM8741_DIFF_MASK, + wm8741->pdata.diff_mode << WM8741_DIFF_SHIFT); + break; + default: + return -EINVAL; + } + + /* Change some default settings - latch VU */ + snd_soc_update_bits(codec, WM8741_DACLLSB_ATTENUATION, + WM8741_UPDATELL, WM8741_UPDATELL); + snd_soc_update_bits(codec, WM8741_DACLMSB_ATTENUATION, + WM8741_UPDATELM, WM8741_UPDATELM); + snd_soc_update_bits(codec, WM8741_DACRLSB_ATTENUATION, + WM8741_UPDATERL, WM8741_UPDATERL); + snd_soc_update_bits(codec, WM8741_DACRMSB_ATTENUATION, + WM8741_UPDATERM, WM8741_UPDATERM); + + return 0; +} + +static int wm8741_add_controls(struct snd_soc_codec *codec) +{ + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); + + switch (wm8741->pdata.diff_mode) { + case WM8741_DIFF_MODE_STEREO: + case WM8741_DIFF_MODE_STEREO_REVERSED: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_stereo, + ARRAY_SIZE(wm8741_snd_controls_stereo)); + break; + case WM8741_DIFF_MODE_MONO_LEFT: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_mono_left, + ARRAY_SIZE(wm8741_snd_controls_mono_left)); + break; + case WM8741_DIFF_MODE_MONO_RIGHT: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_mono_right, + ARRAY_SIZE(wm8741_snd_controls_mono_right)); + break; + default: + return -EINVAL; + } + + return 0; +} + static int wm8741_probe(struct snd_soc_codec *codec) { struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); @@ -434,15 +499,17 @@ static int wm8741_probe(struct snd_soc_codec *codec) goto err_enable; } - /* Change some default settings - latch VU */ - snd_soc_update_bits(codec, WM8741_DACLLSB_ATTENUATION, - WM8741_UPDATELL, WM8741_UPDATELL); - snd_soc_update_bits(codec, WM8741_DACLMSB_ATTENUATION, - WM8741_UPDATELM, WM8741_UPDATELM); - snd_soc_update_bits(codec, WM8741_DACRLSB_ATTENUATION, - WM8741_UPDATERL, WM8741_UPDATERL); - snd_soc_update_bits(codec, WM8741_DACRMSB_ATTENUATION, - WM8741_UPDATERM, WM8741_UPDATERM); + ret = wm8741_configure(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to change default settings\n"); + goto err_enable; + } + + ret = wm8741_add_controls(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to add controls\n"); + goto err_enable; + } dev_dbg(codec->dev, "Successful registration\n"); return ret; @@ -467,8 +534,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8741 = { .remove = wm8741_remove, .resume = wm8741_resume, - .controls = wm8741_snd_controls, - .num_controls = ARRAY_SIZE(wm8741_snd_controls), .dapm_widgets = wm8741_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8741_dapm_widgets), .dapm_routes = wm8741_dapm_routes, @@ -493,6 +558,23 @@ static const struct regmap_config wm8741_regmap = { .readable_reg = wm8741_readable, }; +static int wm8741_set_pdata(struct device *dev, struct wm8741_priv *wm8741) +{ + const struct wm8741_platform_data *pdata = dev_get_platdata(dev); + u32 diff_mode; + + if (dev->of_node) { + if (of_property_read_u32(dev->of_node, "diff-mode", &diff_mode) + >= 0) + wm8741->pdata.diff_mode = diff_mode; + } else { + if (pdata != NULL) + memcpy(&wm8741->pdata, pdata, sizeof(wm8741->pdata)); + } + + return 0; +} + #if IS_ENABLED(CONFIG_I2C) static int wm8741_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) @@ -522,6 +604,12 @@ static int wm8741_i2c_probe(struct i2c_client *i2c, return ret; } + ret = wm8741_set_pdata(&i2c->dev, wm8741); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to set pdata: %d\n", ret); + return ret; + } + i2c_set_clientdata(i2c, wm8741); ret = snd_soc_register_codec(&i2c->dev, @@ -582,6 +670,12 @@ static int wm8741_spi_probe(struct spi_device *spi) return ret; } + ret = wm8741_set_pdata(&spi->dev, wm8741); + if (ret != 0) { + dev_err(&spi->dev, "Failed to set pdata: %d\n", ret); + return ret; + } + spi_set_drvdata(spi, wm8741); ret = snd_soc_register_codec(&spi->dev, -- cgit v1.2.3-54-g00ecf