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Commit 1ab4f851 authored by Mark Brown's avatar Mark Brown
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Merge remote-tracking branch 'asoc/topic/sunxi' into asoc-next

parents 10330401 6b803c61
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Showing with 233 additions and 49 deletions
Documentation/devicetree/bindings/sound/sun4i-codec.txt
View file @ 1ab4f851
......@@ -14,6 +14,9 @@ Required properties:
- "apb": the parent APB clock for this controller
- "codec": the parent module clock
Optional properties:
- allwinner,pa-gpios: gpio to enable external amplifier
Example:
codec: codec@01c22c00 {
#sound-dai-cells = <0>;
......
sound/soc/sunxi/sun4i-codec.c
View file @ 1ab4f851
......@@ -28,6 +28,7 @@
#include <linux/of_address.h>
#include <linux/clk.h>
#include <linux/regmap.h>
#include <linux/gpio/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
......@@ -70,6 +71,7 @@
/* Codec ADC register offsets and bit fields */
#define SUN4I_CODEC_ADC_FIFOC (0x1c)
#define SUN4I_CODEC_ADC_FIFOC_ADC_FS (29)
#define SUN4I_CODEC_ADC_FIFOC_EN_AD (28)
#define SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE (24)
#define SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL (8)
......@@ -102,17 +104,14 @@ struct sun4i_codec {
struct regmap *regmap;
struct clk *clk_apb;
struct clk *clk_module;
struct gpio_desc *gpio_pa;
struct snd_dmaengine_dai_dma_data capture_dma_data;
struct snd_dmaengine_dai_dma_data playback_dma_data;
};
static void sun4i_codec_start_playback(struct sun4i_codec *scodec)
{
/*
* FIXME: according to the BSP, we might need to drive a PA
* GPIO high here on some boards
*/
/* Flush TX FIFO */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH),
......@@ -126,37 +125,50 @@ static void sun4i_codec_start_playback(struct sun4i_codec *scodec)
static void sun4i_codec_stop_playback(struct sun4i_codec *scodec)
{
/*
* FIXME: according to the BSP, we might need to drive a PA
* GPIO low here on some boards
*/
/* Disable DAC DRQ */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN),
0);
}
static void sun4i_codec_start_capture(struct sun4i_codec *scodec)
{
/* Enable ADC DRQ */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN),
BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN));
}
static void sun4i_codec_stop_capture(struct sun4i_codec *scodec)
{
/* Disable ADC DRQ */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), 0);
}
static int sun4i_codec_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
return -ENOTSUPP;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
sun4i_codec_start_playback(scodec);
else
sun4i_codec_start_capture(scodec);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
sun4i_codec_stop_playback(scodec);
else
sun4i_codec_stop_capture(scodec);
break;
default:
......@@ -166,15 +178,54 @@ static int sun4i_codec_trigger(struct snd_pcm_substream *substream, int cmd,
return 0;
}
static int sun4i_codec_prepare(struct snd_pcm_substream *substream,
static int sun4i_codec_prepare_capture(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
u32 val;
if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
return -ENOTSUPP;
/* Flush RX FIFO */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH),
BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH));
/* Set RX FIFO trigger level */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
0xf << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL,
0x7 << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL);
/*
* FIXME: Undocumented in the datasheet, but
* Allwinner's code mentions that it is related
* related to microphone gain
*/
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_ACTL,
0x3 << 25,
0x1 << 25);
if (of_device_is_compatible(scodec->dev->of_node,
"allwinner,sun7i-a20-codec"))
/* FIXME: Undocumented bits */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_TUNE,
0x3 << 8,
0x1 << 8);
/* Fill most significant bits with valid data MSB */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE),
BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE));
return 0;
}
static int sun4i_codec_prepare_playback(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
u32 val;
/* Flush the TX FIFO */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
......@@ -203,6 +254,15 @@ static int sun4i_codec_prepare(struct snd_pcm_substream *substream,
0);
return 0;
};
static int sun4i_codec_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return sun4i_codec_prepare_playback(substream, dai);
return sun4i_codec_prepare_capture(substream, dai);
}
static unsigned long sun4i_codec_get_mod_freq(struct snd_pcm_hw_params *params)
......@@ -277,30 +337,32 @@ static int sun4i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
}
}
static int sun4i_codec_hw_params(struct snd_pcm_substream *substream,
static int sun4i_codec_hw_params_capture(struct sun4i_codec *scodec,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
unsigned int hwrate)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
unsigned long clk_freq;
int ret, hwrate;
u32 val;
/* Set ADC sample rate */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
7 << SUN4I_CODEC_ADC_FIFOC_ADC_FS,
hwrate << SUN4I_CODEC_ADC_FIFOC_ADC_FS);
if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
return -ENOTSUPP;
clk_freq = sun4i_codec_get_mod_freq(params);
if (!clk_freq)
return -EINVAL;
/* Set the number of channels we want to use */
if (params_channels(params) == 1)
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN),
BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN));
else
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC,
BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN), 0);
ret = clk_set_rate(scodec->clk_module, clk_freq);
if (ret)
return ret;
return 0;
}
hwrate = sun4i_codec_get_hw_rate(params);
if (hwrate < 0)
return hwrate;
static int sun4i_codec_hw_params_playback(struct sun4i_codec *scodec,
struct snd_pcm_hw_params *params,
unsigned int hwrate)
{
u32 val;
/* Set DAC sample rate */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
......@@ -345,6 +407,35 @@ static int sun4i_codec_hw_params(struct snd_pcm_substream *substream,
return 0;
}
static int sun4i_codec_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
unsigned long clk_freq;
int ret, hwrate;
clk_freq = sun4i_codec_get_mod_freq(params);
if (!clk_freq)
return -EINVAL;
ret = clk_set_rate(scodec->clk_module, clk_freq);
if (ret)
return ret;
hwrate = sun4i_codec_get_hw_rate(params);
if (hwrate < 0)
return hwrate;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return sun4i_codec_hw_params_playback(scodec, params,
hwrate);
return sun4i_codec_hw_params_capture(scodec, params,
hwrate);
}
static int sun4i_codec_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
......@@ -395,6 +486,20 @@ static struct snd_soc_dai_driver sun4i_codec_dai = {
SNDRV_PCM_FMTBIT_S32_LE,
.sig_bits = 24,
},
.capture = {
.stream_name = "Codec Capture",
.channels_min = 1,
.channels_max = 2,
.rate_min = 8000,
.rate_max = 192000,
.rates = SNDRV_PCM_RATE_8000_48000 |
SNDRV_PCM_RATE_96000 |
SNDRV_PCM_RATE_192000 |
SNDRV_PCM_RATE_KNOT,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE,
.sig_bits = 24,
},
};
/*** Codec ***/
......@@ -429,12 +534,23 @@ static const struct snd_kcontrol_new sun4i_codec_pa_mixer_controls[] = {
SUN4I_CODEC_DAC_ACTL_MIXPAS, 1, 0),
};
static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = {
static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
/* Digital parts of the ADCs */
SND_SOC_DAPM_SUPPLY("ADC", SUN4I_CODEC_ADC_FIFOC,
SUN4I_CODEC_ADC_FIFOC_EN_AD, 0,
NULL, 0),
/* Digital parts of the DACs */
SND_SOC_DAPM_SUPPLY("DAC", SUN4I_CODEC_DAC_DPC,
SUN4I_CODEC_DAC_DPC_EN_DA, 0,
NULL, 0),
/* Analog parts of the ADCs */
SND_SOC_DAPM_ADC("Left ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_ADC_L_EN, 0),
SND_SOC_DAPM_ADC("Right ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_ADC_R_EN, 0),
/* Analog parts of the DACs */
SND_SOC_DAPM_DAC("Left DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_DACAENL, 0),
......@@ -453,6 +569,14 @@ static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("Mixer Enable", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_MIXEN, 0, NULL, 0),
/* VMIC */
SND_SOC_DAPM_SUPPLY("VMIC", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_VMICEN, 0, NULL, 0),
/* Mic Pre-Amplifiers */
SND_SOC_DAPM_PGA("MIC1 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_PREG1EN, 0, NULL, 0),
/* Power Amplifier */
SND_SOC_DAPM_MIXER("Power Amplifier", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_PA_EN, 0,
......@@ -461,15 +585,19 @@ static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = {
SND_SOC_DAPM_SWITCH("Power Amplifier Mute", SND_SOC_NOPM, 0, 0,
&sun4i_codec_pa_mute),
SND_SOC_DAPM_INPUT("Mic1"),
SND_SOC_DAPM_OUTPUT("HP Right"),
SND_SOC_DAPM_OUTPUT("HP Left"),
};
static const struct snd_soc_dapm_route sun4i_codec_dapm_routes[] = {
/* Left DAC Routes */
static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
/* Left ADC / DAC Routes */
{ "Left ADC", NULL, "ADC" },
{ "Left DAC", NULL, "DAC" },
/* Right DAC Routes */
/* Right ADC / DAC Routes */
{ "Right ADC", NULL, "ADC" },
{ "Right DAC", NULL, "DAC" },
/* Right Mixer Routes */
......@@ -491,15 +619,21 @@ static const struct snd_soc_dapm_route sun4i_codec_dapm_routes[] = {
{ "Power Amplifier Mute", "Switch", "Power Amplifier" },
{ "HP Right", NULL, "Power Amplifier Mute" },
{ "HP Left", NULL, "Power Amplifier Mute" },
/* Mic1 Routes */
{ "Left ADC", NULL, "MIC1 Pre-Amplifier" },
{ "Right ADC", NULL, "MIC1 Pre-Amplifier" },
{ "MIC1 Pre-Amplifier", NULL, "Mic1"},
{ "Mic1", NULL, "VMIC" },
};
static struct snd_soc_codec_driver sun4i_codec_codec = {
.controls = sun4i_codec_widgets,
.num_controls = ARRAY_SIZE(sun4i_codec_widgets),
.dapm_widgets = sun4i_codec_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(sun4i_codec_dapm_widgets),
.dapm_routes = sun4i_codec_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(sun4i_codec_dapm_routes),
.dapm_widgets = sun4i_codec_codec_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
.dapm_routes = sun4i_codec_codec_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
};
static const struct snd_soc_component_driver sun4i_codec_component = {
......@@ -516,7 +650,7 @@ static int sun4i_codec_dai_probe(struct snd_soc_dai *dai)
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
snd_soc_dai_init_dma_data(dai, &scodec->playback_dma_data,
NULL);
&scodec->capture_dma_data);
return 0;
}
......@@ -532,6 +666,14 @@ static struct snd_soc_dai_driver dummy_cpu_dai = {
.formats = SUN4I_CODEC_FORMATS,
.sig_bits = 24,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SUN4I_CODEC_RATES,
.formats = SUN4I_CODEC_FORMATS,
.sig_bits = 24,
},
};
static const struct regmap_config sun4i_codec_regmap_config = {
......@@ -569,6 +711,27 @@ static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev,
return link;
};
static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(w->dapm->card);
if (scodec->gpio_pa)
gpiod_set_value_cansleep(scodec->gpio_pa,
!!SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
static const struct snd_soc_dapm_widget sun4i_codec_card_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
};
static const struct snd_soc_dapm_route sun4i_codec_card_dapm_routes[] = {
{ "Speaker", NULL, "HP Right" },
{ "Speaker", NULL, "HP Left" },
};
static struct snd_soc_card *sun4i_codec_create_card(struct device *dev)
{
struct snd_soc_card *card;
......@@ -583,6 +746,10 @@ static struct snd_soc_card *sun4i_codec_create_card(struct device *dev)
card->dev = dev;
card->name = "sun4i-codec";
card->dapm_widgets = sun4i_codec_card_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sun4i_codec_card_dapm_widgets);
card->dapm_routes = sun4i_codec_card_dapm_routes;
card->num_dapm_routes = ARRAY_SIZE(sun4i_codec_card_dapm_routes);
return card;
};
......@@ -634,11 +801,25 @@ static int sun4i_codec_probe(struct platform_device *pdev)
return -EINVAL;
}
scodec->gpio_pa = devm_gpiod_get_optional(&pdev->dev, "allwinner,pa",
GPIOD_OUT_LOW);
if (IS_ERR(scodec->gpio_pa)) {
ret = PTR_ERR(scodec->gpio_pa);
if (ret != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get pa gpio: %d\n", ret);
return ret;
}
/* DMA configuration for TX FIFO */
scodec->playback_dma_data.addr = res->start + SUN4I_CODEC_DAC_TXDATA;
scodec->playback_dma_data.maxburst = 4;
scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
/* DMA configuration for RX FIFO */
scodec->capture_dma_data.addr = res->start + SUN4I_CODEC_ADC_RXDATA;
scodec->capture_dma_data.maxburst = 4;
scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
ret = snd_soc_register_codec(&pdev->dev, &sun4i_codec_codec,
&sun4i_codec_dai, 1);
if (ret) {
......
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