ASoC: wm1250-ev1: Support sample rate configuration
The Springbank module can support a range of sample rates, selected at runtime via GPIO configuration. Allow these to be configured at runtime. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Родитель
5f6ac59f70
Коммит
fde39a6b15
|
@ -79,6 +79,48 @@ static const struct snd_soc_dapm_route wm1250_ev1_dapm_routes[] = {
|
|||
{ "WM1250 Output", NULL, "DAC" },
|
||||
};
|
||||
|
||||
static int wm1250_ev1_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct wm1250_priv *wm1250 = snd_soc_codec_get_drvdata(dai->codec);
|
||||
|
||||
switch (params_rate(params)) {
|
||||
case 8000:
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
|
||||
1);
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
|
||||
1);
|
||||
break;
|
||||
case 16000:
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
|
||||
0);
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
|
||||
1);
|
||||
break;
|
||||
case 32000:
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
|
||||
1);
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
|
||||
0);
|
||||
break;
|
||||
case 64000:
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
|
||||
0);
|
||||
gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
|
||||
0);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct snd_soc_dai_ops wm1250_ev1_ops = {
|
||||
.hw_params = wm1250_ev1_hw_params,
|
||||
};
|
||||
|
||||
static struct snd_soc_dai_driver wm1250_ev1_dai = {
|
||||
.name = "wm1250-ev1",
|
||||
.playback = {
|
||||
|
@ -95,6 +137,7 @@ static struct snd_soc_dai_driver wm1250_ev1_dai = {
|
|||
.rates = SNDRV_PCM_RATE_8000,
|
||||
.formats = SNDRV_PCM_FMTBIT_S16_LE,
|
||||
},
|
||||
.ops = &wm1250_ev1_ops,
|
||||
};
|
||||
|
||||
static struct snd_soc_codec_driver soc_codec_dev_wm1250_ev1 = {
|
||||
|
|
Загрузка…
Ссылка в новой задаче