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/*
* saarb.c -- SoC audio for saarb
*
* Copyright (C) 2010 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/clk.h>
#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <asm/mach-types.h>
#include "../codecs/88pm860x-codec.h"
#include "pxa-ssp.h"
static int saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd);
static struct platform_device *saarb_snd_device;
static struct snd_soc_jack hs_jack, mic_jack;
static struct snd_soc_jack_pin hs_jack_pins[] = {
{ .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, },
};
static struct snd_soc_jack_pin mic_jack_pins[] = {
{ .pin = "Headset Mic 2", .mask = SND_JACK_MICROPHONE, },
};
/* saarb machine dapm widgets */
static const struct snd_soc_dapm_widget saarb_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Stereophone", NULL),
SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
SND_SOC_DAPM_SPK("Ext Speaker", NULL),
SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
};
/* saarb machine audio map */
static const struct snd_soc_dapm_route saarb_audio_map[] = {
{"Headset Stereophone", NULL, "HS1"},
{"Headset Stereophone", NULL, "HS2"},
{"Ext Speaker", NULL, "LSP"},
{"Ext Speaker", NULL, "LSN"},
{"Lineout Out 1", NULL, "LINEOUT1"},
{"Lineout Out 2", NULL, "LINEOUT2"},
{"MIC1P", NULL, "Mic1 Bias"},
{"MIC1N", NULL, "Mic1 Bias"},
{"Mic1 Bias", NULL, "Ext Mic 1"},
{"MIC2P", NULL, "Mic1 Bias"},
{"MIC2N", NULL, "Mic1 Bias"},
{"Mic1 Bias", NULL, "Headset Mic 2"},
{"MIC3P", NULL, "Mic3 Bias"},
{"MIC3N", NULL, "Mic3 Bias"},
{"Mic3 Bias", NULL, "Ext Mic 3"},
};
static int saarb_i2s_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 *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int width = snd_pcm_format_physical_width(params_format(params));
int ret;
ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_NET_PLL, 0,
PM860X_CLK_DIR_OUT);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_sysclk(codec_dai, 0, 0, PM860X_CLK_DIR_OUT);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 3, 3, 2, width);
return ret;
}
static struct snd_soc_ops saarb_i2s_ops = {
.hw_params = saarb_i2s_hw_params,
};
static struct snd_soc_dai_link saarb_dai[] = {
{
.name = "88PM860x I2S",
.stream_name = "I2S Audio",
.cpu_dai_name = "pxa-ssp-dai.1",
.codec_dai_name = "88pm860x-i2s",
.platform_name = "pxa-pcm-audio",
.codec_name = "88pm860x-codec",
.init = saarb_pm860x_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM,
.ops = &saarb_i2s_ops,
},
};
static struct snd_soc_card snd_soc_card_saarb = {
.name = "Saarb",
.owner = THIS_MODULE,
.dai_link = saarb_dai,
.num_links = ARRAY_SIZE(saarb_dai),
.dapm_widgets = saarb_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(saarb_dapm_widgets),
.dapm_routes = saarb_audio_map,
.num_dapm_routes = ARRAY_SIZE(saarb_audio_map),
};
static int saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
/* connected pins */
snd_soc_dapm_enable_pin(dapm, "Ext Speaker");
snd_soc_dapm_enable_pin(dapm, "Ext Mic 1");
snd_soc_dapm_enable_pin(dapm, "Ext Mic 3");
snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
/* Headset jack detection */
snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
| SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
&hs_jack);
snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
hs_jack_pins);
snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
&mic_jack);
snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
mic_jack_pins);
/* headphone, microphone detection & headset short detection */
pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
return 0;
}
static int __init saarb_init(void)
{
int ret;
if (!machine_is_saarb())
return -ENODEV;
saarb_snd_device = platform_device_alloc("soc-audio", -1);
if (!saarb_snd_device)
return -ENOMEM;
platform_set_drvdata(saarb_snd_device, &snd_soc_card_saarb);
ret = platform_device_add(saarb_snd_device);
if (ret)
platform_device_put(saarb_snd_device);
return ret;
}
static void __exit saarb_exit(void)
{
platform_device_unregister(saarb_snd_device);
}
module_init(saarb_init);
module_exit(saarb_exit);
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
MODULE_DESCRIPTION("ALSA SoC 88PM860x Saarb");
MODULE_LICENSE("GPL");
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