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* tavorevb3.c -- SoC audio for Tavor EVB3
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* Copyright (C) 2010 Marvell International Ltd.
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* Haojian Zhuang <haojian.zhuang@marvell.com>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <linux/clk.h>
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#include <linux/i2c.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <asm/mach-types.h>
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#include "../codecs/88pm860x-codec.h"
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static int evb3_pm860x_init(struct snd_soc_pcm_runtime *rtd);
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static struct platform_device *evb3_snd_device;
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static struct snd_soc_jack hs_jack, mic_jack;
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{ .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, },
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static struct snd_soc_jack_pin mic_jack_pins[] = {
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{ .pin = "Headset Mic 2", .mask = SND_JACK_MICROPHONE, },
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/* tavorevb3 machine dapm widgets */
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static const struct snd_soc_dapm_widget evb3_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
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SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
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SND_SOC_DAPM_SPK("Ext Speaker", NULL),
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SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
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SND_SOC_DAPM_MIC("Headset Mic 2", NULL),
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SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
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/* tavorevb3 machine audio map */
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static const struct snd_soc_dapm_route audio_map[] = {
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{"Headset Stereophone", NULL, "HS1"},
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{"Headset Stereophone", NULL, "HS2"},
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{"Ext Speaker", NULL, "LSP"},
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{"Ext Speaker", NULL, "LSN"},
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{"Lineout Out 1", NULL, "LINEOUT1"},
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{"Lineout Out 2", NULL, "LINEOUT2"},
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{"MIC1P", NULL, "Mic1 Bias"},
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{"MIC1N", NULL, "Mic1 Bias"},
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{"Mic1 Bias", NULL, "Ext Mic 1"},
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{"MIC2P", NULL, "Mic1 Bias"},
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{"MIC2N", NULL, "Mic1 Bias"},
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{"Mic1 Bias", NULL, "Headset Mic 2"},
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{"MIC3P", NULL, "Mic3 Bias"},
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{"MIC3N", NULL, "Mic3 Bias"},
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{"Mic3 Bias", NULL, "Ext Mic 3"},
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static int evb3_i2s_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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int width = snd_pcm_format_physical_width(params_format(params));
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ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_NET_PLL, 0,
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, 0, PM860X_CLK_DIR_OUT);
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
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ret = snd_soc_dai_set_tdm_slot(cpu_dai, 3, 3, 2, width);
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static struct snd_soc_ops evb3_i2s_ops = {
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.hw_params = evb3_i2s_hw_params,
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static struct snd_soc_dai_link evb3_dai[] = {
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.name = "88PM860x I2S",
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.stream_name = "I2S Audio",
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.cpu_dai_name = "pxa-ssp-dai.1",
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.codec_dai_name = "88pm860x-i2s",
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.platform_name = "pxa-pcm-audio",
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.codec_name = "88pm860x-codec",
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.init = evb3_pm860x_init,
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.ops = &evb3_i2s_ops,
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static struct snd_soc_card snd_soc_card_evb3 = {
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.name = "Tavor EVB3",
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.dai_link = evb3_dai,
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.num_links = ARRAY_SIZE(evb3_dai),
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static int evb3_pm860x_init(struct snd_soc_pcm_runtime *rtd)
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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snd_soc_dapm_new_controls(dapm, evb3_dapm_widgets,
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ARRAY_SIZE(evb3_dapm_widgets));
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snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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snd_soc_dapm_enable_pin(dapm, "Ext Speaker");
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snd_soc_dapm_enable_pin(dapm, "Ext Mic 1");
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snd_soc_dapm_enable_pin(dapm, "Ext Mic 3");
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snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
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snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
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ret = snd_soc_dapm_sync(dapm);
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/* Headset jack detection */
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snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
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| SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
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snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
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snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
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snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
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/* headphone, microphone detection & headset short detection */
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pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
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SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
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pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
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static int __init tavorevb3_init(void)
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if (!machine_is_tavorevb3())
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evb3_snd_device = platform_device_alloc("soc-audio", -1);
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if (!evb3_snd_device)
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platform_set_drvdata(evb3_snd_device, &snd_soc_card_evb3);
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ret = platform_device_add(evb3_snd_device);
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platform_device_put(evb3_snd_device);
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static void __exit tavorevb3_exit(void)
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platform_device_unregister(evb3_snd_device);
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module_init(tavorevb3_init);
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module_exit(tavorevb3_exit);
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MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
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MODULE_DESCRIPTION("ALSA SoC 88PM860x Tavor EVB3");
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MODULE_LICENSE("GPL");