/* * Machine driver for EVAL-ADAV801 and EVAL-ADAV803 on Analog Devices bfin * evaluation boards. * * Copyright 2011 Analog Devices Inc. * Author: Lars-Peter Clausen * * Licensed under the GPL-2 or later. */ #include #include #include #include #include #include #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 devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adav80x); } 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", .pm = &snd_soc_pm_ops, }, .probe = bfin_eval_adav80x_probe, .id_table = bfin_eval_adav80x_ids, }; module_platform_driver(bfin_eval_adav80x_driver); MODULE_AUTHOR("Lars-Peter Clausen "); MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver"); MODULE_LICENSE("GPL"); p;id=50d55b6d3f1c40485e2e06b2805ef81f881ee9db&showmsg=1'>Expand)AuthorFilesLines