diff options
Diffstat (limited to 'sound/soc/samsung/lowland.c')
| -rw-r--r-- | sound/soc/samsung/lowland.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/sound/soc/samsung/lowland.c b/sound/soc/samsung/lowland.c new file mode 100644 index 000000000000..4adff934f771 --- /dev/null +++ b/sound/soc/samsung/lowland.c @@ -0,0 +1,237 @@ +/* + * Lowland 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 <linux/module.h> + +#include "../codecs/wm5100.h" +#include "../codecs/wm9081.h" + +#define MCLK1_RATE (44100 * 512) +#define CLKOUT_RATE (44100 * 256) + +static int lowland_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; + + return 0; +} + +static struct snd_soc_ops lowland_ops = { + .hw_params = lowland_hw_params, +}; + +static struct snd_soc_jack lowland_headset; + +/* Headset jack detection DAPM pins */ +static struct snd_soc_jack_pin lowland_headset_pins[] = { + { + .pin = "Headphone", + .mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, + }, + { + .pin = "Headset Mic", + .mask = SND_JACK_MICROPHONE, + }, +}; + +static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + int ret; + + ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_SYSCLK, + WM5100_CLKSRC_MCLK1, MCLK1_RATE, + SND_SOC_CLOCK_IN); + if (ret < 0) { + pr_err("Failed to set SYSCLK clock source: %d\n", ret); + return ret; + } + + /* Clock OPCLK, used by the other audio components. */ + ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_OPCLK, 0, + CLKOUT_RATE, 0); + if (ret < 0) { + pr_err("Failed to set OPCLK rate: %d\n", ret); + return ret; + } + + ret = snd_soc_jack_new(codec, "Headset", + SND_JACK_LINEOUT | SND_JACK_HEADSET | + SND_JACK_BTN_0, + &lowland_headset); + if (ret) + return ret; + + ret = snd_soc_jack_add_pins(&lowland_headset, + ARRAY_SIZE(lowland_headset_pins), + lowland_headset_pins); + if (ret) + return ret; + + wm5100_detect(codec, &lowland_headset); + + return 0; +} + +static struct snd_soc_dai_link lowland_dai[] = { + { + .name = "CPU", + .stream_name = "CPU", + .cpu_dai_name = "samsung-i2s.0", + .codec_dai_name = "wm5100-aif1", + .platform_name = "samsung-audio", + .codec_name = "wm5100.1-001a", + .ops = &lowland_ops, + .init = lowland_wm5100_init, + }, + { + .name = "Baseband", + .stream_name = "Baseband", + .cpu_dai_name = "wm5100-aif2", + .codec_dai_name = "wm1250-ev1", + .codec_name = "wm1250-ev1.1-0027", + .ops = &lowland_ops, + .ignore_suspend = 1, + }, +}; + +static int lowland_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, 0, + CLKOUT_RATE, 0); +} + +static struct snd_soc_aux_dev lowland_aux_dev[] = { + { + .name = "wm9081", + .codec_name = "wm9081.1-006c", + .init = lowland_wm9081_init, + }, +}; + +static struct snd_soc_codec_conf lowland_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"), + SOC_DAPM_PIN_SWITCH("Headphone"), +}; + +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[] = { + { "Sub IN1", NULL, "HPOUT2L" }, + { "Sub IN2", NULL, "HPOUT2R" }, + + { "Main Speaker", NULL, "Sub SPKN" }, + { "Main Speaker", NULL, "Sub SPKP" }, + { "Main Speaker", NULL, "SPKDAT1" }, +}; + +static struct snd_soc_card lowland = { + .name = "Lowland", + .owner = THIS_MODULE, + .dai_link = lowland_dai, + .num_links = ARRAY_SIZE(lowland_dai), + .aux_dev = lowland_aux_dev, + .num_aux_devs = ARRAY_SIZE(lowland_aux_dev), + .codec_conf = lowland_codec_conf, + .num_configs = ARRAY_SIZE(lowland_codec_conf), + + .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), +}; + +static __devinit int lowland_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &lowland; + 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 lowland_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 lowland_driver = { + .driver = { + .name = "lowland", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = lowland_probe, + .remove = __devexit_p(lowland_remove), +}; + +module_platform_driver(lowland_driver); + +MODULE_DESCRIPTION("Lowland audio support"); +MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:lowland"); |
