diff options
Diffstat (limited to 'sound/soc/blackfin/bfin-eval-adav80x.c')
| -rw-r--r-- | sound/soc/blackfin/bfin-eval-adav80x.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/sound/soc/blackfin/bfin-eval-adav80x.c b/sound/soc/blackfin/bfin-eval-adav80x.c new file mode 100644 index 00000000..84b09987 --- /dev/null +++ b/sound/soc/blackfin/bfin-eval-adav80x.c @@ -0,0 +1,156 @@ +/* + * Machine driver for EVAL-ADAV801 and EVAL-ADAV803 on Analog Devices bfin + * evaluation boards. + * + * Copyright 2011 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> + +#include "../codecs/adav80x.h" + +static const struct snd_soc_dapm_widget bfin_eval_adav80x_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Line Out", NULL), + SND_SOC_DAPM_LINE("Line In", NULL), +}; + +static const struct snd_soc_dapm_route bfin_eval_adav80x_dapm_routes[] = { + { "Line Out", NULL, "VOUTL" }, + { "Line Out", NULL, "VOUTR" }, + + { "VINL", NULL, "Line In" }, + { "VINR", NULL, "Line In" }, +}; + +static int bfin_eval_adav80x_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; + + ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_PLL1, ADAV80X_PLL_SRC_XTAL, + 27000000, params_rate(params) * 256); + if (ret) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_PLL1, + params_rate(params) * 256, SND_SOC_CLOCK_IN); + + return ret; +} + +static int bfin_eval_adav80x_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *codec_dai = rtd->codec_dai; + + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK1, 0, + SND_SOC_CLOCK_OUT); + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK2, 0, + SND_SOC_CLOCK_OUT); + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK3, 0, + SND_SOC_CLOCK_OUT); + + snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_XTAL, 2700000, 0); + + return 0; +} + +static struct snd_soc_ops bfin_eval_adav80x_ops = { + .hw_params = bfin_eval_adav80x_hw_params, +}; + +static struct snd_soc_dai_link bfin_eval_adav80x_dais[] = { + { + .name = "adav80x", + .stream_name = "ADAV80x HiFi", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "adav80x-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .init = bfin_eval_adav80x_codec_init, + .ops = &bfin_eval_adav80x_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + }, +}; + +static struct snd_soc_card bfin_eval_adav80x = { + .name = "bfin-eval-adav80x", + .owner = THIS_MODULE, + .dai_link = bfin_eval_adav80x_dais, + .num_links = ARRAY_SIZE(bfin_eval_adav80x_dais), + + .dapm_widgets = bfin_eval_adav80x_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adav80x_dapm_widgets), + .dapm_routes = bfin_eval_adav80x_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(bfin_eval_adav80x_dapm_routes), +}; + +enum bfin_eval_adav80x_type { + BFIN_EVAL_ADAV801, + BFIN_EVAL_ADAV803, +}; + +static int bfin_eval_adav80x_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &bfin_eval_adav80x; + const char *codec_name; + + switch (platform_get_device_id(pdev)->driver_data) { + case BFIN_EVAL_ADAV801: + codec_name = "spi0.1"; + break; + case BFIN_EVAL_ADAV803: + codec_name = "adav803.0-0034"; + break; + default: + return -EINVAL; + } + + bfin_eval_adav80x_dais[0].codec_name = codec_name; + + card->dev = &pdev->dev; + + return snd_soc_register_card(&bfin_eval_adav80x); +} + +static int __devexit bfin_eval_adav80x_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static const struct platform_device_id bfin_eval_adav80x_ids[] = { + { "bfin-eval-adav801", BFIN_EVAL_ADAV801 }, + { "bfin-eval-adav803", BFIN_EVAL_ADAV803 }, + { }, +}; +MODULE_DEVICE_TABLE(platform, bfin_eval_adav80x_ids); + +static struct platform_driver bfin_eval_adav80x_driver = { + .driver = { + .name = "bfin-eval-adav80x", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = bfin_eval_adav80x_probe, + .remove = __devexit_p(bfin_eval_adav80x_remove), + .id_table = bfin_eval_adav80x_ids, +}; + +module_platform_driver(bfin_eval_adav80x_driver); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver"); +MODULE_LICENSE("GPL"); |