diff options
Diffstat (limited to 'sound/soc/au1x/db1200.c')
| -rw-r--r-- | sound/soc/au1x/db1200.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/sound/soc/au1x/db1200.c b/sound/soc/au1x/db1200.c new file mode 100644 index 00000000..30ea513d --- /dev/null +++ b/sound/soc/au1x/db1200.c @@ -0,0 +1,211 @@ +/* + * DB1200/DB1300/DB1550 ASoC audio fabric support code. + * + * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com> + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <asm/mach-au1x00/au1000.h> +#include <asm/mach-au1x00/au1xxx_psc.h> +#include <asm/mach-au1x00/au1xxx_dbdma.h> +#include <asm/mach-db1x00/bcsr.h> + +#include "../codecs/wm8731.h" +#include "psc.h" + +static struct platform_device_id db1200_pids[] = { + { + .name = "db1200-ac97", + .driver_data = 0, + }, { + .name = "db1200-i2s", + .driver_data = 1, + }, { + .name = "db1300-ac97", + .driver_data = 2, + }, { + .name = "db1300-i2s", + .driver_data = 3, + }, { + .name = "db1550-ac97", + .driver_data = 4, + }, { + .name = "db1550-i2s", + .driver_data = 5, + }, + {}, +}; + +/*------------------------- AC97 PART ---------------------------*/ + +static struct snd_soc_dai_link db1200_ac97_dai = { + .name = "AC97", + .stream_name = "AC97 HiFi", + .codec_dai_name = "ac97-hifi", + .cpu_dai_name = "au1xpsc_ac97.1", + .platform_name = "au1xpsc-pcm.1", + .codec_name = "ac97-codec.1", +}; + +static struct snd_soc_card db1200_ac97_machine = { + .name = "DB1200_AC97", + .owner = THIS_MODULE, + .dai_link = &db1200_ac97_dai, + .num_links = 1, +}; + +static struct snd_soc_dai_link db1300_ac97_dai = { + .name = "AC97", + .stream_name = "AC97 HiFi", + .codec_dai_name = "wm9712-hifi", + .cpu_dai_name = "au1xpsc_ac97.1", + .platform_name = "au1xpsc-pcm.1", + .codec_name = "wm9712-codec.1", +}; + +static struct snd_soc_card db1300_ac97_machine = { + .name = "DB1300_AC97", + .dai_link = &db1300_ac97_dai, + .num_links = 1, +}; + +static struct snd_soc_card db1550_ac97_machine = { + .name = "DB1550_AC97", + .dai_link = &db1200_ac97_dai, + .num_links = 1, +}; + +/*------------------------- I2S PART ---------------------------*/ + +static int db1200_i2s_startup(struct snd_pcm_substream *substream) +{ + 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; + int ret; + + /* WM8731 has its own 12MHz crystal */ + snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, + 12000000, SND_SOC_CLOCK_IN); + + /* codec is bitclock and lrclk master */ + ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); + if (ret < 0) + goto out; + + ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); + if (ret < 0) + goto out; + + ret = 0; +out: + return ret; +} + +static struct snd_soc_ops db1200_i2s_wm8731_ops = { + .startup = db1200_i2s_startup, +}; + +static struct snd_soc_dai_link db1200_i2s_dai = { + .name = "WM8731", + .stream_name = "WM8731 PCM", + .codec_dai_name = "wm8731-hifi", + .cpu_dai_name = "au1xpsc_i2s.1", + .platform_name = "au1xpsc-pcm.1", + .codec_name = "wm8731.0-001b", + .ops = &db1200_i2s_wm8731_ops, +}; + +static struct snd_soc_card db1200_i2s_machine = { + .name = "DB1200_I2S", + .owner = THIS_MODULE, + .dai_link = &db1200_i2s_dai, + .num_links = 1, +}; + +static struct snd_soc_dai_link db1300_i2s_dai = { + .name = "WM8731", + .stream_name = "WM8731 PCM", + .codec_dai_name = "wm8731-hifi", + .cpu_dai_name = "au1xpsc_i2s.2", + .platform_name = "au1xpsc-pcm.2", + .codec_name = "wm8731.0-001b", + .ops = &db1200_i2s_wm8731_ops, +}; + +static struct snd_soc_card db1300_i2s_machine = { + .name = "DB1300_I2S", + .dai_link = &db1300_i2s_dai, + .num_links = 1, +}; + +static struct snd_soc_dai_link db1550_i2s_dai = { + .name = "WM8731", + .stream_name = "WM8731 PCM", + .codec_dai_name = "wm8731-hifi", + .cpu_dai_name = "au1xpsc_i2s.3", + .platform_name = "au1xpsc-pcm.3", + .codec_name = "wm8731.0-001b", + .ops = &db1200_i2s_wm8731_ops, +}; + +static struct snd_soc_card db1550_i2s_machine = { + .name = "DB1550_I2S", + .dai_link = &db1550_i2s_dai, + .num_links = 1, +}; + +/*------------------------- COMMON PART ---------------------------*/ + +static struct snd_soc_card *db1200_cards[] __devinitdata = { + &db1200_ac97_machine, + &db1200_i2s_machine, + &db1300_ac97_machine, + &db1300_i2s_machine, + &db1550_ac97_machine, + &db1550_i2s_machine, +}; + +static int __devinit db1200_audio_probe(struct platform_device *pdev) +{ + const struct platform_device_id *pid = platform_get_device_id(pdev); + struct snd_soc_card *card; + + card = db1200_cards[pid->driver_data]; + card->dev = &pdev->dev; + return snd_soc_register_card(card); +} + +static int __devexit db1200_audio_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + snd_soc_unregister_card(card); + return 0; +} + +static struct platform_driver db1200_audio_driver = { + .driver = { + .name = "db1200-ac97", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .id_table = db1200_pids, + .probe = db1200_audio_probe, + .remove = __devexit_p(db1200_audio_remove), +}; + +module_platform_driver(db1200_audio_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support"); +MODULE_AUTHOR("Manuel Lauss"); |