| /* |
| * 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 <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <sound/jack.h> |
| #include <linux/gpio.h> |
| #include <linux/module.h> |
| |
| #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-i2s.0", |
| .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-i2s.0", |
| .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-i2s.0", |
| .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 <broonie@opensource.wolfsonmicro.com>"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:bells"); |