| /* |
| * Speyside audio support |
| * |
| * Copyright 2011 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 "../codecs/wm8915.h" |
| #include "../codecs/wm9081.h" |
| |
| #define WM8915_HPSEL_GPIO 214 |
| |
| static int speyside_set_bias_level(struct snd_soc_card *card, |
| enum snd_soc_bias_level level) |
| { |
| struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; |
| int ret; |
| |
| switch (level) { |
| case SND_SOC_BIAS_STANDBY: |
| ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_MCLK2, |
| 32768, SND_SOC_CLOCK_IN); |
| if (ret < 0) |
| return ret; |
| |
| ret = snd_soc_dai_set_pll(codec_dai, WM8915_FLL_MCLK2, |
| 0, 0, 0); |
| if (ret < 0) { |
| pr_err("Failed to stop FLL\n"); |
| return ret; |
| } |
| |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int speyside_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 *cpu_dai = rtd->cpu_dai; |
| struct snd_soc_dai *codec_dai = rtd->codec_dai; |
| int ret; |
| |
| ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
| | SND_SOC_DAIFMT_NB_NF |
| | SND_SOC_DAIFMT_CBM_CFM); |
| if (ret < 0) |
| return ret; |
| |
| ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
| | SND_SOC_DAIFMT_NB_NF |
| | SND_SOC_DAIFMT_CBM_CFM); |
| if (ret < 0) |
| return ret; |
| |
| ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK2, |
| 32768, 256 * 48000); |
| if (ret < 0) |
| return ret; |
| |
| ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL, |
| 256 * 48000, SND_SOC_CLOCK_IN); |
| if (ret < 0) |
| return ret; |
| |
| return 0; |
| } |
| |
| static struct snd_soc_ops speyside_ops = { |
| .hw_params = speyside_hw_params, |
| }; |
| |
| static struct snd_soc_jack speyside_headset; |
| |
| /* Headset jack detection DAPM pins */ |
| static struct snd_soc_jack_pin speyside_headset_pins[] = { |
| { |
| .pin = "Headset Mic", |
| .mask = SND_JACK_MICROPHONE, |
| }, |
| { |
| .pin = "Headphone", |
| .mask = SND_JACK_HEADPHONE, |
| }, |
| }; |
| |
| /* Default the headphone selection to active high */ |
| static int speyside_jack_polarity; |
| |
| static int speyside_get_micbias(struct snd_soc_dapm_widget *source, |
| struct snd_soc_dapm_widget *sink) |
| { |
| if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0)) |
| return 1; |
| if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0)) |
| return 1; |
| |
| return 0; |
| } |
| |
| static void speyside_set_polarity(struct snd_soc_codec *codec, |
| int polarity) |
| { |
| speyside_jack_polarity = !polarity; |
| gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity); |
| |
| /* Re-run DAPM to make sure we're using the correct mic bias */ |
| snd_soc_dapm_sync(&codec->dapm); |
| } |
| |
| static int speyside_wm8915_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_dai *dai = rtd->codec_dai; |
| struct snd_soc_codec *codec = rtd->codec; |
| int ret; |
| |
| ret = snd_soc_dai_set_sysclk(dai, WM8915_SYSCLK_MCLK2, 32768, 0); |
| if (ret < 0) |
| return ret; |
| |
| ret = gpio_request(WM8915_HPSEL_GPIO, "HP_SEL"); |
| if (ret != 0) |
| pr_err("Failed to request HP_SEL GPIO: %d\n", ret); |
| gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity); |
| |
| ret = snd_soc_jack_new(codec, "Headset", |
| SND_JACK_HEADSET | SND_JACK_BTN_0, |
| &speyside_headset); |
| if (ret) |
| return ret; |
| |
| ret = snd_soc_jack_add_pins(&speyside_headset, |
| ARRAY_SIZE(speyside_headset_pins), |
| speyside_headset_pins); |
| if (ret) |
| return ret; |
| |
| wm8915_detect(codec, &speyside_headset, speyside_set_polarity); |
| |
| return 0; |
| } |
| |
| static int speyside_late_probe(struct snd_soc_card *card) |
| { |
| snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); |
| snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); |
| snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); |
| snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); |
| snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); |
| snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); |
| snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); |
| |
| return 0; |
| } |
| |
| static struct snd_soc_dai_link speyside_dai[] = { |
| { |
| .name = "CPU", |
| .stream_name = "CPU", |
| .cpu_dai_name = "samsung-i2s.0", |
| .codec_dai_name = "wm8915-aif1", |
| .platform_name = "samsung-audio", |
| .codec_name = "wm8915.1-001a", |
| .init = speyside_wm8915_init, |
| .ops = &speyside_ops, |
| }, |
| { |
| .name = "Baseband", |
| .stream_name = "Baseband", |
| .cpu_dai_name = "wm8915-aif2", |
| .codec_dai_name = "wm1250-ev1", |
| .codec_name = "wm1250-ev1.1-0027", |
| .ops = &speyside_ops, |
| .ignore_suspend = 1, |
| }, |
| }; |
| |
| static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm) |
| { |
| snd_soc_dapm_nc_pin(dapm, "LINEOUT"); |
| |
| /* At any time the WM9081 is active it will have this clock */ |
| return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK, |
| 48000 * 256, 0); |
| } |
| |
| static struct snd_soc_aux_dev speyside_aux_dev[] = { |
| { |
| .name = "wm9081", |
| .codec_name = "wm9081.1-006c", |
| .init = speyside_wm9081_init, |
| }, |
| }; |
| |
| static struct snd_soc_codec_conf speyside_codec_conf[] = { |
| { |
| .dev_name = "wm9081.1-006c", |
| .name_prefix = "Sub", |
| }, |
| }; |
| |
| static const struct snd_kcontrol_new controls[] = { |
| SOC_DAPM_PIN_SWITCH("Main Speaker"), |
| SOC_DAPM_PIN_SWITCH("Main DMIC"), |
| SOC_DAPM_PIN_SWITCH("Main AMIC"), |
| SOC_DAPM_PIN_SWITCH("WM1250 Input"), |
| SOC_DAPM_PIN_SWITCH("WM1250 Output"), |
| }; |
| |
| static struct snd_soc_dapm_widget widgets[] = { |
| SND_SOC_DAPM_HP("Headphone", NULL), |
| SND_SOC_DAPM_MIC("Headset Mic", NULL), |
| |
| SND_SOC_DAPM_SPK("Main Speaker", NULL), |
| |
| SND_SOC_DAPM_MIC("Main AMIC", NULL), |
| SND_SOC_DAPM_MIC("Main DMIC", NULL), |
| }; |
| |
| static struct snd_soc_dapm_route audio_paths[] = { |
| { "IN1RN", NULL, "MICB1" }, |
| { "IN1RP", NULL, "MICB1" }, |
| { "IN1RN", NULL, "MICB2" }, |
| { "IN1RP", NULL, "MICB2" }, |
| { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, |
| { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, |
| |
| { "IN1LP", NULL, "MICB2" }, |
| { "IN1RN", NULL, "MICB1" }, |
| { "MICB2", NULL, "Main AMIC" }, |
| |
| { "DMIC1DAT", NULL, "MICB1" }, |
| { "DMIC2DAT", NULL, "MICB1" }, |
| { "MICB1", NULL, "Main DMIC" }, |
| |
| { "Headphone", NULL, "HPOUT1L" }, |
| { "Headphone", NULL, "HPOUT1R" }, |
| |
| { "Sub IN1", NULL, "HPOUT2L" }, |
| { "Sub IN2", NULL, "HPOUT2R" }, |
| |
| { "Main Speaker", NULL, "Sub SPKN" }, |
| { "Main Speaker", NULL, "Sub SPKP" }, |
| { "Main Speaker", NULL, "SPKDAT" }, |
| }; |
| |
| static struct snd_soc_card speyside = { |
| .name = "Speyside", |
| .dai_link = speyside_dai, |
| .num_links = ARRAY_SIZE(speyside_dai), |
| .aux_dev = speyside_aux_dev, |
| .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), |
| .codec_conf = speyside_codec_conf, |
| .num_configs = ARRAY_SIZE(speyside_codec_conf), |
| |
| .set_bias_level = speyside_set_bias_level, |
| |
| .controls = controls, |
| .num_controls = ARRAY_SIZE(controls), |
| .dapm_widgets = widgets, |
| .num_dapm_widgets = ARRAY_SIZE(widgets), |
| .dapm_routes = audio_paths, |
| .num_dapm_routes = ARRAY_SIZE(audio_paths), |
| |
| .late_probe = speyside_late_probe, |
| }; |
| |
| static __devinit int speyside_probe(struct platform_device *pdev) |
| { |
| struct snd_soc_card *card = &speyside; |
| int ret; |
| |
| card->dev = &pdev->dev; |
| |
| ret = snd_soc_register_card(card); |
| if (ret) { |
| dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
| ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int __devexit speyside_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 speyside_driver = { |
| .driver = { |
| .name = "speyside", |
| .owner = THIS_MODULE, |
| .pm = &snd_soc_pm_ops, |
| }, |
| .probe = speyside_probe, |
| .remove = __devexit_p(speyside_remove), |
| }; |
| |
| static int __init speyside_audio_init(void) |
| { |
| return platform_driver_register(&speyside_driver); |
| } |
| module_init(speyside_audio_init); |
| |
| static void __exit speyside_audio_exit(void) |
| { |
| platform_driver_unregister(&speyside_driver); |
| } |
| module_exit(speyside_audio_exit); |
| |
| MODULE_DESCRIPTION("Speyside audio support"); |
| MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:speyside"); |