diff options
Diffstat (limited to 'sound/soc/codecs/wm1250-ev1.c')
| -rw-r--r-- | sound/soc/codecs/wm1250-ev1.c | 65 |
1 files changed, 46 insertions, 19 deletions
diff --git a/sound/soc/codecs/wm1250-ev1.c b/sound/soc/codecs/wm1250-ev1.c index aefb4f89be0..e0b51e9f8b1 100644 --- a/sound/soc/codecs/wm1250-ev1.c +++ b/sound/soc/codecs/wm1250-ev1.c @@ -79,22 +79,65 @@ 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 = { .stream_name = "Playback", .channels_min = 1, - .channels_max = 1, + .channels_max = 2, .rates = SNDRV_PCM_RATE_8000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "Capture", .channels_min = 1, - .channels_max = 1, + .channels_max = 2, .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 = { @@ -215,23 +258,7 @@ static struct i2c_driver wm1250_ev1_i2c_driver = { .id_table = wm1250_ev1_i2c_id, }; -static int __init wm1250_ev1_modinit(void) -{ - int ret = 0; - - ret = i2c_add_driver(&wm1250_ev1_i2c_driver); - if (ret != 0) - pr_err("Failed to register WM1250-EV1 I2C driver: %d\n", ret); - - return ret; -} -module_init(wm1250_ev1_modinit); - -static void __exit wm1250_ev1_exit(void) -{ - i2c_del_driver(&wm1250_ev1_i2c_driver); -} -module_exit(wm1250_ev1_exit); +module_i2c_driver(wm1250_ev1_i2c_driver); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_DESCRIPTION("WM1250-EV1 audio I/O module driver"); |