/* * Bells audio support * * Copyright 2012 Wolfson Microelectronics * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include #include #include #include #include #include "../codecs/wm5102.h" #include "../codecs/wm9081.h" /* BCLK2 is fixed at this currently */ #define BCLK2_RATE (64 * 8000) /* * Expect a 24.576MHz crystal if one is fitted (the driver will function * if this is not fitted). */ #define MCLK_RATE 24576000 #define SYS_AUDIO_RATE 44100 #define SYS_MCLK_RATE (SYS_AUDIO_RATE * 512) #define DAI_AP_DSP 0 #define DAI_DSP_CODEC 1 #define DAI_CODEC_CP 2 #define DAI_CODEC_SUB 3 struct bells_drvdata { int sysclk_rate; int asyncclk_rate; }; static struct bells_drvdata wm2200_drvdata = { .sysclk_rate = 22579200, }; static struct bells_drvdata wm5102_drvdata = { .sysclk_rate = 45158400, .asyncclk_rate = 49152000, }; static struct bells_drvdata wm5110_drvdata = { .sysclk_rate = 135475200, .asyncclk_rate = 147456000, }; static int bells_set_bias_level(struct snd_soc_card *card, struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) { struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai; struct snd_soc_codec *codec = codec_dai->codec; struct bells_drvdata *bells = card->drvdata; int ret; if (dapm->dev != codec_dai->dev) return 0; switch (level) { case SND_SOC_BIAS_PREPARE: if (dapm->bias_level != SND_SOC_BIAS_STANDBY) break; ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, ARIZONA_FLL_SRC_MCLK1, MCLK_RATE, bells->sysclk_rate); if (ret < 0) pr_err("Failed to start FLL: %d\n", ret); if (bells->asyncclk_rate) { ret = snd_soc_codec_set_pll(codec, WM5102_FLL2, ARIZONA_FLL_SRC_AIF2BCLK, BCLK2_RATE, bells->asyncclk_rate); if (ret < 0) pr_err("Failed to start FLL: %d\n", ret); } break; default: break; } return 0; } static int bells_set_bias_level_post(struct snd_soc_card *card, struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) { struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai; struct snd_soc_codec *codec = codec_dai->codec; struct bells_drvdata *bells = card->drvdata; int ret; if (dapm->dev != codec_dai->dev) return 0; switch (level) { case SND_SOC_BIAS_STANDBY: ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0); if (ret < 0) { pr_err("Failed to stop FLL: %d\n", ret); return ret; } if (bells->asyncclk_rate) { ret = snd_soc_codec_set_pll(codec, WM5102_FLL2, 0, 0, 0); if (ret < 0) { pr_err("Failed to stop FLL: %d\n", ret); return ret; } } break; default: break; } dapm->bias_level = level; return 0; } static int bells_late_probe(struct snd_soc_card *card) { struct bells_drvdata *bells = card->drvdata; struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec; struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec; struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai; struct snd_soc_dai *aif2_dai; struct snd_soc_dai *aif3_dai; struct snd_soc_dai *wm9081_dai; int ret; ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK, ARIZONA_CLK_SRC_FLL1, bells->sysclk_rate, SND_SOC_CLOCK_IN); if (ret != 0) { dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret); return ret; } ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0); if (ret != 0) { dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret); return ret; } ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0); if (ret != 0) dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret); ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0, SYS_MCLK_RATE, SND_SOC_CLOCK_OUT); if (ret != 0) dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret); if (card->num_rtd == DAI_CODEC_CP) return 0; ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK, ARIZONA_CLK_SRC_FLL2, bells->asyncclk_rate, SND_SOC_CLOCK_IN); if (ret != 0) { dev_err(codec->dev, "Failed to set ASYNCCLK: %d\n", ret); return ret; } aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai; ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0); if (ret != 0) { dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret); return ret; } if (card->num_rtd == DAI_CODEC_SUB) return 0; aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai; wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai; ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0); if (ret != 0) { dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret); return ret; } ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK, 0, SYS_MCLK_RATE, 0); if (ret != 0) { dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret); return ret; } return 0; } static const struct snd_soc_pcm_stream baseband_params = { .formats = SNDRV_PCM_FMTBIT_S32_LE, .rate_min = 8000, .rate_max = 8000, .channels_min = 2, .channels_max = 2, }; static const struct snd_soc_pcm_stream sub_params = { .formats = SNDRV_PCM_FMTBIT_S32_LE, .rate_min = SYS_AUDIO_RATE, .rate_max = SYS_AUDIO_RATE, .channels_min = 2, .channels_max = 2, }; static struct snd_soc_dai_link bells_dai_wm2200[] = { { .name = "CPU-DSP", .stream_name = "CPU-DSP", .cpu_dai_name = "samsung-i2s.0", .codec_dai_name = "wm0010-sdi1", .platform_name = "samsung-audio", .codec_name = "spi0.0", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, }, { .name = "DSP-CODEC", .stream_name = "DSP-CODEC", .cpu_dai_name = "wm0010-sdi2", .codec_dai_name = "wm2200", .codec_name = "wm2200.1-003a", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .params = &sub_params, .ignore_suspend = 1, }, }; static struct snd_soc_dai_link bells_dai_wm5102[] = { { .name = "CPU-DSP", .stream_name = "CPU-DSP", .cpu_dai_name = "samsung-i2s.0", .codec_dai_name = "wm0010-sdi1", .platform_name = "samsung-audio", .codec_name = "spi0.0", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, }, { .name = "DSP-CODEC", .stream_name = "DSP-CODEC", .cpu_dai_name = "wm0010-sdi2", .codec_dai_name = "wm5102-aif1", .codec_name = "wm5102-codec", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .params = &sub_params, .ignore_suspend = 1, }, { .name = "Baseband", .stream_name = "Baseband", .cpu_dai_name = "wm5102-aif2", .codec_dai_name = "wm1250-ev1", .codec_name = "wm1250-ev1.1-0027", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .ignore_suspend = 1, .params = &baseband_params, }, { .name = "Sub", .stream_name = "Sub", .cpu_dai_name = "wm5102-aif3", .codec_dai_name = "wm9081-hifi", .codec_name = "wm9081.1-006c", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .ignore_suspend = 1, .params = &sub_params, }, }; static struct snd_soc_dai_link bells_dai_wm5110[] = { { .name = "CPU-DSP", .stream_name = "CPU-DSP", .cpu_dai_name = "samsung-i2s.0", .codec_dai_name = "wm0010-sdi1", .platform_name = "samsung-audio", .codec_name = "spi0.0", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, }, { .name = "DSP-CODEC", .stream_name = "DSP-CODEC", .cpu_dai_name = "wm0010-sdi2", .codec_dai_name = "wm5110-aif1", .codec_name = "wm5110-codec", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .params = &sub_params, .ignore_suspend = 1, }, { .name = "Baseband", .stream_name = "Baseband", .cpu_dai_name = "wm5110-aif2", .codec_dai_name = "wm1250-ev1", .codec_name = "wm1250-ev1.1-0027", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .ignore_suspend = 1, .params = &baseband_params, }, { .name = "Sub", .stream_name = "Sub", .cpu_dai_name = "wm5110-aif3", .codec_dai_name = "wm9081-hifi", .codec_name = "wm9081.1-006c", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .ignore_suspend = 1, .params = &sub_params, }, }; static struct snd_soc_codec_conf bells_codec_conf[] = { { .dev_name = "wm9081.1-006c", .name_prefix = "Sub", }, }; static struct snd_soc_dapm_route bells_routes[] = { { "Sub CLK_SYS", NULL, "OPCLK" }, }; static struct snd_soc_card bells_cards[] = { { .name = "Bells WM2200", .owner = THIS_MODULE, .dai_link = bells_dai_wm2200, .num_links = ARRAY_SIZE(bells_dai_wm2200), .codec_conf = bells_codec_conf, .num_configs = ARRAY_SIZE(bells_codec_conf), .late_probe = bells_late_probe, .dapm_routes = bells_routes, .num_dapm_routes = ARRAY_SIZE(bells_routes), .set_bias_level = bells_set_bias_level, .set_bias_level_post = bells_set_bias_level_post, .drvdata = &wm2200_drvdata, }, { .name = "Bells WM5102", .owner = THIS_MODULE, .dai_link = bells_dai_wm5102, .num_links = ARRAY_SIZE(bells_dai_wm5102), .codec_conf = bells_codec_conf, .num_configs = ARRAY_SIZE(bells_codec_conf), .late_probe = bells_late_probe, .dapm_routes = bells_routes, .num_dapm_routes = ARRAY_SIZE(bells_routes), .set_bias_level = bells_set_bias_level, .set_bias_level_post = bells_set_bias_level_post, .drvdata = &wm5102_drvdata, }, { .name = "Bells WM5110", .owner = THIS_MODULE, .dai_link = bells_dai_wm5110, .num_links = ARRAY_SIZE(bells_dai_wm5110), .codec_conf = bells_codec_conf, .num_configs = ARRAY_SIZE(bells_codec_conf), .late_probe = bells_late_probe, .dapm_routes = bells_routes, .num_dapm_routes = ARRAY_SIZE(bells_routes), .set_bias_level = bells_set_bias_level, .set_bias_level_post = bells_set_bias_level_post, .drvdata = &wm5110_drvdata, }, }; static __devinit int bells_probe(struct platform_device *pdev) { int ret; bells_cards[pdev->id].dev = &pdev->dev; ret = snd_soc_register_card(&bells_cards[pdev->id]); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card(%s) failed: %d\n", bells_cards[pdev->id].name, ret); return ret; } return 0; } static int __devexit bells_remove(struct platform_device *pdev) { snd_soc_unregister_card(&bells_cards[pdev->id]); return 0; } static struct platform_driver bells_driver = { .driver = { .name = "bells", .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, }, .probe = bells_probe, .remove = __devexit_p(bells_remove), }; module_platform_driver(bells_driver); MODULE_DESCRIPTION("Bells audio support"); MODULE_AUTHOR("Mark Brown "); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:bells");