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ASoC: Add WM8912 DAC support
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The WM8912 is a DAC only device register compatible with the WM8904
CODEC with ADC portions omitted.  Support it within the WM8904 driver
based on the configured I2C device name.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
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Mark Brown committed Feb 4, 2010
1 parent e4bc669 commit 8c12647
Showing 1 changed file with 72 additions and 18 deletions.
90 changes: 72 additions & 18 deletions sound/soc/codecs/wm8904.c
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,11 @@
static struct snd_soc_codec *wm8904_codec;
struct snd_soc_codec_device soc_codec_dev_wm8904;

enum wm8904_type {
WM8904,
WM8912,
};

#define WM8904_NUM_DCS_CHANNELS 4

#define WM8904_NUM_SUPPLIES 5
Expand All @@ -49,6 +54,8 @@ struct wm8904_priv {
struct snd_soc_codec codec;
u16 reg_cache[WM8904_MAX_REGISTER + 1];

enum wm8904_type devtype;

struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES];

struct wm8904_pdata *pdata;
Expand Down Expand Up @@ -1411,30 +1418,62 @@ static const struct snd_soc_dapm_route wm8904_intercon[] = {
{ "LINER PGA", NULL, "LINER Mux" },
};

static const struct snd_soc_dapm_route wm8912_intercon[] = {
{ "HPL PGA", NULL, "DACL" },
{ "HPR PGA", NULL, "DACR" },

{ "LINEL PGA", NULL, "DACL" },
{ "LINER PGA", NULL, "DACR" },
};

static int wm8904_add_widgets(struct snd_soc_codec *codec)
{
snd_soc_add_controls(codec, wm8904_adc_snd_controls,
ARRAY_SIZE(wm8904_adc_snd_controls));
snd_soc_add_controls(codec, wm8904_dac_snd_controls,
ARRAY_SIZE(wm8904_dac_snd_controls));
snd_soc_add_controls(codec, wm8904_snd_controls,
ARRAY_SIZE(wm8904_snd_controls));
struct wm8904_priv *wm8904 = codec->private_data;

snd_soc_dapm_new_controls(codec, wm8904_core_dapm_widgets,
ARRAY_SIZE(wm8904_core_dapm_widgets));
snd_soc_dapm_new_controls(codec, wm8904_adc_dapm_widgets,
ARRAY_SIZE(wm8904_adc_dapm_widgets));
snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
ARRAY_SIZE(wm8904_dac_dapm_widgets));
snd_soc_dapm_new_controls(codec, wm8904_dapm_widgets,
ARRAY_SIZE(wm8904_dapm_widgets));

snd_soc_dapm_add_routes(codec, core_intercon,
ARRAY_SIZE(core_intercon));
snd_soc_dapm_add_routes(codec, adc_intercon, ARRAY_SIZE(adc_intercon));
snd_soc_dapm_add_routes(codec, dac_intercon, ARRAY_SIZE(dac_intercon));
snd_soc_dapm_add_routes(codec, wm8904_intercon,
ARRAY_SIZE(wm8904_intercon));

switch (wm8904->devtype) {
case WM8904:
snd_soc_add_controls(codec, wm8904_adc_snd_controls,
ARRAY_SIZE(wm8904_adc_snd_controls));
snd_soc_add_controls(codec, wm8904_dac_snd_controls,
ARRAY_SIZE(wm8904_dac_snd_controls));
snd_soc_add_controls(codec, wm8904_snd_controls,
ARRAY_SIZE(wm8904_snd_controls));

snd_soc_dapm_new_controls(codec, wm8904_adc_dapm_widgets,
ARRAY_SIZE(wm8904_adc_dapm_widgets));
snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
ARRAY_SIZE(wm8904_dac_dapm_widgets));
snd_soc_dapm_new_controls(codec, wm8904_dapm_widgets,
ARRAY_SIZE(wm8904_dapm_widgets));

snd_soc_dapm_add_routes(codec, core_intercon,
ARRAY_SIZE(core_intercon));
snd_soc_dapm_add_routes(codec, adc_intercon,
ARRAY_SIZE(adc_intercon));
snd_soc_dapm_add_routes(codec, dac_intercon,
ARRAY_SIZE(dac_intercon));
snd_soc_dapm_add_routes(codec, wm8904_intercon,
ARRAY_SIZE(wm8904_intercon));
break;

case WM8912:
snd_soc_add_controls(codec, wm8904_dac_snd_controls,
ARRAY_SIZE(wm8904_dac_snd_controls));

snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
ARRAY_SIZE(wm8904_dac_dapm_widgets));

snd_soc_dapm_add_routes(codec, dac_intercon,
ARRAY_SIZE(dac_intercon));
snd_soc_dapm_add_routes(codec, wm8912_intercon,
ARRAY_SIZE(wm8912_intercon));
break;
}

snd_soc_dapm_new_widgets(codec);
return 0;
Expand Down Expand Up @@ -2412,6 +2451,18 @@ static int wm8904_register(struct wm8904_priv *wm8904,
codec->cache_sync = 1;
codec->idle_bias_off = 1;

switch (wm8904->devtype) {
case WM8904:
break;
case WM8912:
memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture));
break;
default:
dev_err(codec->dev, "Unknown device type %d\n",
wm8904->devtype);
return -EINVAL;
}

memcpy(codec->reg_cache, wm8904_reg, sizeof(wm8904_reg));

ret = snd_soc_codec_set_cache_io(codec, 8, 16, control);
Expand Down Expand Up @@ -2542,6 +2593,8 @@ static __devinit int wm8904_i2c_probe(struct i2c_client *i2c,
codec = &wm8904->codec;
codec->hw_write = (hw_write_t)i2c_master_send;

wm8904->devtype = id->driver_data;

i2c_set_clientdata(i2c, wm8904);
codec->control_data = i2c;
wm8904->pdata = i2c->dev.platform_data;
Expand All @@ -2559,7 +2612,8 @@ static __devexit int wm8904_i2c_remove(struct i2c_client *client)
}

static const struct i2c_device_id wm8904_i2c_id[] = {
{ "wm8904", 0 },
{ "wm8904", WM8904 },
{ "wm8912", WM8912 },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id);
Expand Down

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