The patch add support for SPEAr ASoC machine driver.
Signed-off-by: Rajeev Kumar rajeev-dlh.kumar@st.com --- sound/soc/spear/spear_evb.c | 206 +++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 206 insertions(+), 0 deletions(-) create mode 100644 sound/soc/spear/spear_evb.c
diff --git a/sound/soc/spear/spear_evb.c b/sound/soc/spear/spear_evb.c new file mode 100644 index 0000000..fcde033 --- /dev/null +++ b/sound/soc/spear/spear_evb.c @@ -0,0 +1,206 @@ +/* + * ASoC machine driver for SPEAr evaluation boards + * + * sound/soc/spear/spear_evb.c + * + * Copyright (C) 2010 ST Microelectronics + * Rajeev Kumarrajeev-dlh.kumar@st.com + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/io.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/module.h> + +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <mach/hardware.h> + +static int sta529_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; + int ret = 0; + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_CBS_CFM); + if (ret < 0) + return ret; + + return 0; +} + +/* Audio machine driver for SPEAr evb */ +static struct snd_soc_ops sta529_ops = { + .hw_params = sta529_hw_params, +}; + +/* SPEAr audio interface glue - connects codec <--> CPU <--> platform */ +static struct snd_soc_dai_link spear_evb_dai[] = { + { + .name = "sta529-pcm", + .stream_name = "pcm", + .cpu_dai_name = "designware-i2s.0", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "sta529-audio", + .codec_name = "sta529-codec.0-001a", + .ops = &sta529_ops, + }, +}; + +/* SPEAr audio machine driver */ +static struct snd_soc_card spear_snd_card = { + .name = "spear-evb", + .dai_link = spear_evb_dai, + .num_links = ARRAY_SIZE(spear_evb_dai), +}; + +/* SPEAr320s audio interface glue - connects codec <--> CPU <--> platform */ +static struct snd_soc_dai_link spear320s_evb_dai[] = { + { + .name = "sta529-pcm", + .stream_name = "pcm", + .cpu_dai_name = "designware-i2s", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "sta529-audio", + .codec_name = "sta529-codec.0-001a", + .ops = &sta529_ops, + }, +}; + +/* SPEAr320s audio machine driver */ +static struct snd_soc_card spear320s_snd_card = { + .name = "spear320s-evb", + .dai_link = spear320s_evb_dai, + .num_links = ARRAY_SIZE(spear320s_evb_dai), +}; + +/* LCAD audio interface glue - connects codec <--> CPU <--> platform */ +static struct snd_soc_dai_link lcad_evb_dai[] = { + { + .name = "sta529-pcm0", + .stream_name = "I2S Playback", + .cpu_dai_name = "designware-i2s.0", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "sta529-audio", + .codec_name = "sta529-codec.0-001a", + .ops = &sta529_ops, + }, { + .name = "sta529-pcm1", + .stream_name = "I2S Capture", + .cpu_dai_name = "designware-i2s.1", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "sta529-audio", + .codec_name = "sta529-codec.0-001a", + .ops = &sta529_ops, + }, +}; + +static struct snd_soc_card lcad_snd_card = { + .name = "lcad-evb", + .dai_link = lcad_evb_dai, + .num_links = ARRAY_SIZE(lcad_evb_dai), +}; + +/* Audio machine driver for SPEAr1340 evb */ + +/* SPEAr1340 audio interface glue - connects codec <--> CPU <--> platform */ +static struct snd_soc_dai_link spear1340_evb_dai[] = { + { + .name = "spdif-pcm0", + .stream_name = "SPDIF Playback", + .cpu_dai_name = "spdif-out", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "dit-hifi", + .codec_name = "spdif-dit", + .ops = NULL, + }, { + .name = "spdif-pcm1", + .stream_name = "SPDIF Capture", + .cpu_dai_name = "spdif-in", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "dir-hifi", + .codec_name = "spdif-dir", + .ops = NULL, + }, { + .name = "sta529-pcm0", + .stream_name = "I2S Playback", + .cpu_dai_name = "designware-i2s.0", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "sta529-audio", + .codec_name = "sta529-codec.0-001a", + .ops = &sta529_ops, + }, { + .name = "sta529-pcm1", + .stream_name = "I2S Capture", + .cpu_dai_name = "designware-i2s.1", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "sta529-audio", + .codec_name = "sta529-codec.0-001a", + .ops = &sta529_ops, + }, +}; + +static struct snd_soc_card spear1340_snd_card = { + .name = "spear1340-evb", + .dai_link = spear1340_evb_dai, + .num_links = ARRAY_SIZE(spear1340_evb_dai), +}; + +static __devinit int spear_evb_probe(struct platform_device *pdev) +{ + struct snd_soc_card *spear_soc_card; + int ret; + + if (of_machine_is_compatible("st,spear_lcad")) + spear_soc_card = &lcad_snd_card; + else if (of_machine_is_compatible("st,spear1340")) + spear_soc_card = &spear1340_snd_card; + else if (of_machine_is_compatible("st,spear320")) + spear_soc_card = &spear320s_snd_card; + else + spear_soc_card = &spear_snd_card; + + spear_soc_card->dev = &pdev->dev; + + ret = snd_soc_register_card(spear_soc_card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed: %d\n", ret); + return ret; + } + + return 0; +} + +static int __devexit spear_evb_remove(struct platform_device *pdev) +{ + struct snd_soc_card *spear_soc_card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(spear_soc_card); + + return 0; +} + +static struct platform_driver spear_evb_driver = { + .driver = { + .name = "spear-evb", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = spear_evb_probe, + .remove = __devexit_p(spear_evb_remove), +}; + +module_platform_driver(spear_evb_driver); + +MODULE_AUTHOR("Rajeev Kumar rajeev-dlh.kumar@st.com"); +MODULE_DESCRIPTION("ST SPEAr EVB ASoC driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:spear evb");