#include #include #include #include "../codecs/wm8940.h" #include "pxa2xx-i2s.h" static int imote2_asoc_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; unsigned int clk = 0; int ret; switch (params_rate(params)) { case 8000: case 16000: case 48000: case 96000: clk = 12288000; break; case 11025: case 22050: case 44100: clk = 11289600; break; } ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk, SND_SOC_CLOCK_IN); if (ret < 0) return ret; /* set the I2S system clock as input (unused) */ ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, clk, SND_SOC_CLOCK_OUT); return ret; } static struct snd_soc_ops imote2_asoc_ops = { .hw_params = imote2_asoc_hw_params, }; static struct snd_soc_dai_link imote2_dai = { .name = "WM8940", .stream_name = "WM8940", .cpu_dai_name = "pxa2xx-i2s", .codec_dai_name = "wm8940-hifi", .platform_name = "pxa-pcm-audio", .codec_name = "wm8940-codec.0-0034", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .ops = &imote2_asoc_ops, }; static struct snd_soc_card imote2 = { .name = "Imote2", .owner = THIS_MODULE, .dai_link = &imote2_dai, .num_links = 1, }; static int imote2_probe(struct platform_device *pdev) { struct snd_soc_card *card = &imote2; int ret; card->dev = &pdev->dev; ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); return ret; } static struct platform_driver imote2_driver = { .driver = { .name = "imote2-audio", .pm = &snd_soc_pm_ops, }, .probe = imote2_probe, }; module_platform_driver(imote2_driver); MODULE_AUTHOR("Jonathan Cameron"); MODULE_DESCRIPTION("ALSA SoC Imote 2"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:imote2-audio"); tdiff

path: root/drivers/usb

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