[deliverable/linux.git] / sound / soc / pxa / magician.c

/*
 * SoC audio for HTC Magician
 *
 * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
 *
 * based on spitz.c,
 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
 *          Richard Purdie <richard@openedhand.com>
 *
 *  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 <linux/module.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/i2c.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/uda1380.h>

#include <mach/magician.h>
#include <asm/mach-types.h>
#include "../codecs/uda1380.h"
#include "pxa2xx-i2s.h"
#include "pxa-ssp.h"

#define MAGICIAN_MIC       0
#define MAGICIAN_MIC_EXT   1

static int magician_hp_switch;
static int magician_spk_switch = 1;
static int magician_in_sel = MAGICIAN_MIC;

static void magician_ext_control(struct snd_soc_dapm_context *dapm)
{

	snd_soc_dapm_mutex_lock(dapm);

	if (magician_spk_switch)
		snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
	else
		snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
	if (magician_hp_switch)
		snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
	else
		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");

	switch (magician_in_sel) {
	case MAGICIAN_MIC:
		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
		snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
		break;
	case MAGICIAN_MIC_EXT:
		snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
		snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
		break;
	}

	snd_soc_dapm_sync_unlocked(dapm);

	snd_soc_dapm_mutex_unlock(dapm);
}

static int magician_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	/* check the jack status at stream startup */
	magician_ext_control(&rtd->card->dapm);

	return 0;
}

/*
 * Magician uses SSP port for playback.
 */
static int magician_playback_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;
	unsigned int acps, acds, width;
	unsigned int div4 = PXA_SSP_CLK_SCDB_4;
	int ret = 0;

	width = snd_pcm_format_physical_width(params_format(params));

	/*
	 * rate = SSPSCLK / (2 * width(16 or 32))
	 * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
	 */
	switch (params_rate(params)) {
	case 8000:
		/* off by a factor of 2: bug in the PXA27x audio clock? */
		acps = 32842000;
		switch (width) {
		case 16:
			/* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_16;
			break;
		default: /* 32 */
			/* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_8;
		}
		break;
	case 11025:
		acps = 5622000;
		switch (width) {
		case 16:
			/* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_4;
			break;
		default: /* 32 */
			/* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_2;
		}
		break;
	case 22050:
		acps = 5622000;
		switch (width) {
		case 16:
			/* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_2;
			break;
		default: /* 32 */
			/* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_1;
		}
		break;
	case 44100:
		acps = 5622000;
		switch (width) {
		case 16:
			/* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_2;
			break;
		default: /* 32 */
			/* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_1;
		}
		break;
	case 48000:
		acps = 12235000;
		switch (width) {
		case 16:
			/* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_2;
			break;
		default: /* 32 */
			/* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_1;
		}
		break;
	case 96000:
	default:
		acps = 12235000;
		switch (width) {
		case 16:
			/* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_1;
			break;
		default: /* 32 */
			/* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
			acds = PXA_SSP_CLK_AUDIO_DIV_2;
			div4 = PXA_SSP_CLK_SCDB_1;
			break;
		}
		break;
	}

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
			SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
			SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
	if (ret < 0)
		return ret;

	/* set audio clock as clock source */
	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
			SND_SOC_CLOCK_OUT);
	if (ret < 0)
		return ret;

	/* set the SSP audio system clock ACDS divider */
	ret = snd_soc_dai_set_clkdiv(cpu_dai,
			PXA_SSP_AUDIO_DIV_ACDS, acds);
	if (ret < 0)
		return ret;

	/* set the SSP audio system clock SCDB divider4 */
	ret = snd_soc_dai_set_clkdiv(cpu_dai,
			PXA_SSP_AUDIO_DIV_SCDB, div4);
	if (ret < 0)
		return ret;

	/* set SSP audio pll clock */
	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
	if (ret < 0)
		return ret;

	return 0;
}

/*
 * Magician uses I2S for capture.
 */
static int magician_capture_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 ret = 0;

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai,
			SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai,
			SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set the I2S system clock as output */
	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
			SND_SOC_CLOCK_OUT);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops magician_capture_ops = {
	.startup = magician_startup,
	.hw_params = magician_capture_hw_params,
};

static struct snd_soc_ops magician_playback_ops = {
	.startup = magician_startup,
	.hw_params = magician_playback_hw_params,
};

static int magician_get_hp(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = magician_hp_switch;
	return 0;
}

static int magician_set_hp(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

	if (magician_hp_switch == ucontrol->value.integer.value[0])
		return 0;

	magician_hp_switch = ucontrol->value.integer.value[0];
	magician_ext_control(&card->dapm);
	return 1;
}

static int magician_get_spk(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = magician_spk_switch;
	return 0;
}

static int magician_set_spk(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

	if (magician_spk_switch == ucontrol->value.integer.value[0])
		return 0;

	magician_spk_switch = ucontrol->value.integer.value[0];
	magician_ext_control(&card->dapm);
	return 1;
}

static int magician_get_input(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.enumerated.item[0] = magician_in_sel;
	return 0;
}

static int magician_set_input(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	if (magician_in_sel == ucontrol->value.enumerated.item[0])
		return 0;

	magician_in_sel = ucontrol->value.enumerated.item[0];

	switch (magician_in_sel) {
	case MAGICIAN_MIC:
		gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
		break;
	case MAGICIAN_MIC_EXT:
		gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
	}

	return 1;
}

static int magician_spk_power(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *k, int event)
{
	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
}

static int magician_hp_power(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *k, int event)
{
	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
}

static int magician_mic_bias(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *k, int event)
{
	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
}

/* magician machine dapm widgets */
static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
	SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
	SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
	SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
};

/* magician machine audio_map */
static const struct snd_soc_dapm_route audio_map[] = {

	/* Headphone connected to VOUTL, VOUTR */
	{"Headphone Jack", NULL, "VOUTL"},
	{"Headphone Jack", NULL, "VOUTR"},

	/* Speaker connected to VOUTL, VOUTR */
	{"Speaker", NULL, "VOUTL"},
	{"Speaker", NULL, "VOUTR"},

	/* Mics are connected to VINM */
	{"VINM", NULL, "Headset Mic"},
	{"VINM", NULL, "Call Mic"},
};

static const char *input_select[] = {"Call Mic", "Headset Mic"};
static const struct soc_enum magician_in_sel_enum =
	SOC_ENUM_SINGLE_EXT(2, input_select);

static const struct snd_kcontrol_new uda1380_magician_controls[] = {
	SOC_SINGLE_BOOL_EXT("Headphone Switch",
			(unsigned long)&magician_hp_switch,
			magician_get_hp, magician_set_hp),
	SOC_SINGLE_BOOL_EXT("Speaker Switch",
			(unsigned long)&magician_spk_switch,
			magician_get_spk, magician_set_spk),
	SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
			magician_get_input, magician_set_input),
};

/* magician digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link magician_dai[] = {
{
	.name = "uda1380",
	.stream_name = "UDA1380 Playback",
	.cpu_dai_name = "pxa-ssp-dai.0",
	.codec_dai_name = "uda1380-hifi-playback",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "uda1380-codec.0-0018",
	.ops = &magician_playback_ops,
},
{
	.name = "uda1380",
	.stream_name = "UDA1380 Capture",
	.cpu_dai_name = "pxa2xx-i2s",
	.codec_dai_name = "uda1380-hifi-capture",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "uda1380-codec.0-0018",
	.ops = &magician_capture_ops,
}
};

/* magician audio machine driver */
static struct snd_soc_card snd_soc_card_magician = {
	.name = "Magician",
	.owner = THIS_MODULE,
	.dai_link = magician_dai,
	.num_links = ARRAY_SIZE(magician_dai),

	.controls = uda1380_magician_controls,
	.num_controls = ARRAY_SIZE(uda1380_magician_controls),
	.dapm_widgets = uda1380_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
	.fully_routed = true,
};

static struct platform_device *magician_snd_device;

/*
 * FIXME: move into magician board file once merged into the pxa tree
 */
static struct uda1380_platform_data uda1380_info = {
	.gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
	.gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
	.dac_clk    = UDA1380_DAC_CLK_WSPLL,
};

static struct i2c_board_info i2c_board_info[] = {
	{
		I2C_BOARD_INFO("uda1380", 0x18),
		.platform_data = &uda1380_info,
	},
};

static int __init magician_init(void)
{
	int ret;
	struct i2c_adapter *adapter;
	struct i2c_client *client;

	if (!machine_is_magician())
		return -ENODEV;

	adapter = i2c_get_adapter(0);
	if (!adapter)
		return -ENODEV;
	client = i2c_new_device(adapter, i2c_board_info);
	i2c_put_adapter(adapter);
	if (!client)
		return -ENODEV;

	ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
	if (ret)
		goto err_request_spk;
	ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
	if (ret)
		goto err_request_ep;
	ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
	if (ret)
		goto err_request_mic;
	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
	if (ret)
		goto err_request_in_sel0;
	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
	if (ret)
		goto err_request_in_sel1;

	gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);

	magician_snd_device = platform_device_alloc("soc-audio", -1);
	if (!magician_snd_device) {
		ret = -ENOMEM;
		goto err_pdev;
	}

	platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
	ret = platform_device_add(magician_snd_device);
	if (ret) {
		platform_device_put(magician_snd_device);
		goto err_pdev;
	}

	return 0;

err_pdev:
	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
err_request_in_sel1:
	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
err_request_in_sel0:
	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
err_request_mic:
	gpio_free(EGPIO_MAGICIAN_EP_POWER);
err_request_ep:
	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
err_request_spk:
	return ret;
}

static void __exit magician_exit(void)
{
	platform_device_unregister(magician_snd_device);

	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);

	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
}

module_init(magician_init);
module_exit(magician_exit);

MODULE_AUTHOR("Philipp Zabel");
MODULE_DESCRIPTION("ALSA SoC Magician");
MODULE_LICENSE("GPL");
Commit	Line	Data
7377226c PZ	1	/*
	2	* SoC audio for HTC Magician
	3	*
	4	* Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
	5	*
	6	* based on spitz.c,
	7	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
	8	* Richard Purdie <richard@openedhand.com>
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation; either version 2 of the License, or (at your
	13	* option) any later version.
	14	*
	15	*/
	16
	17	#include <linux/module.h>
	18	#include <linux/timer.h>
	19	#include <linux/interrupt.h>
	20	#include <linux/platform_device.h>
	21	#include <linux/delay.h>
	22	#include <linux/gpio.h>
1abd9184	23	#include <linux/i2c.h>
7377226c PZ	24
	25	#include <sound/core.h>
	26	#include <sound/pcm.h>
	27	#include <sound/pcm_params.h>
	28	#include <sound/soc.h>
1abd9184	29	#include <sound/uda1380.h>
7377226c	30
7377226c PZ	31	#include <mach/magician.h>
	32	#include <asm/mach-types.h>
	33	#include "../codecs/uda1380.h"
7377226c PZ	34	#include "pxa2xx-i2s.h"
	35	#include "pxa-ssp.h"
	36
	37	#define MAGICIAN_MIC 0
	38	#define MAGICIAN_MIC_EXT 1
	39
	40	static int magician_hp_switch;
	41	static int magician_spk_switch = 1;
	42	static int magician_in_sel = MAGICIAN_MIC;
	43
0fbd44ab	44	static void magician_ext_control(struct snd_soc_dapm_context *dapm)
7377226c	45	{
ce6120cc	46
f71b0fbe CK	47	snd_soc_dapm_mutex_lock(dapm);
f71b0fbe CK	48
7377226c	49	if (magician_spk_switch)
f71b0fbe	50	snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
7377226c	51	else
f71b0fbe	52	snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
7377226c	53	if (magician_hp_switch)
f71b0fbe	54	snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
7377226c	55	else
f71b0fbe	56	snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
7377226c PZ	57
	58	switch (magician_in_sel) {
	59	case MAGICIAN_MIC:
f71b0fbe CK	60	snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
f71b0fbe CK	61	snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
7377226c PZ	62	break;
7377226c PZ	63	case MAGICIAN_MIC_EXT:
f71b0fbe CK	64	snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
f71b0fbe CK	65	snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
7377226c PZ	66	break;
	67	}
	68
f71b0fbe CK	69	snd_soc_dapm_sync_unlocked(dapm);
	70
	71	snd_soc_dapm_mutex_unlock(dapm);
7377226c PZ	72	}
	73
	74	static int magician_startup(struct snd_pcm_substream *substream)
	75	{
	76	struct snd_soc_pcm_runtime *rtd = substream->private_data;
7377226c PZ	77
7377226c PZ	78	/* check the jack status at stream startup */
0fbd44ab	79	magician_ext_control(&rtd->card->dapm);
7377226c PZ	80
	81	return 0;
	82	}
	83
	84	/*
	85	* Magician uses SSP port for playback.
	86	*/
	87	static int magician_playback_hw_params(struct snd_pcm_substream *substream,
	88	struct snd_pcm_hw_params *params)
	89	{
	90	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	91	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	92	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
c6add3f0	93	unsigned int acps, acds, width;
7377226c PZ	94	unsigned int div4 = PXA_SSP_CLK_SCDB_4;
	95	int ret = 0;
	96
7377226c PZ	97	width = snd_pcm_format_physical_width(params_format(params));
	98
	99	/*
	100	* rate = SSPSCLK / (2 * width(16 or 32))
	101	* SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
	102	*/
	103	switch (params_rate(params)) {
	104	case 8000:
	105	/* off by a factor of 2: bug in the PXA27x audio clock? */
	106	acps = 32842000;
	107	switch (width) {
	108	case 16:
	109	/* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
	110	acds = PXA_SSP_CLK_AUDIO_DIV_16;
	111	break;
2bf2778e	112	default: /* 32 */
7377226c PZ	113	/* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
	114	acds = PXA_SSP_CLK_AUDIO_DIV_8;
	115	}
	116	break;
	117	case 11025:
	118	acps = 5622000;
	119	switch (width) {
	120	case 16:
	121	/* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
	122	acds = PXA_SSP_CLK_AUDIO_DIV_4;
	123	break;
2bf2778e	124	default: /* 32 */
7377226c PZ	125	/* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
	126	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	127	}
	128	break;
	129	case 22050:
	130	acps = 5622000;
	131	switch (width) {
	132	case 16:
	133	/* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
	134	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	135	break;
2bf2778e	136	default: /* 32 */
7377226c PZ	137	/* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
	138	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	139	}
	140	break;
	141	case 44100:
	142	acps = 5622000;
	143	switch (width) {
	144	case 16:
	145	/* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
	146	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	147	break;
2bf2778e	148	default: /* 32 */
7377226c PZ	149	/* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
	150	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	151	}
	152	break;
	153	case 48000:
	154	acps = 12235000;
	155	switch (width) {
	156	case 16:
	157	/* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
	158	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	159	break;
2bf2778e	160	default: /* 32 */
7377226c PZ	161	/* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
	162	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	163	}
	164	break;
	165	case 96000:
2bf2778e	166	default:
7377226c PZ	167	acps = 12235000;
	168	switch (width) {
	169	case 16:
	170	/* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
	171	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	172	break;
2bf2778e	173	default: /* 32 */
7377226c PZ	174	/* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
	175	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	176	div4 = PXA_SSP_CLK_SCDB_1;
	177	break;
	178	}
	179	break;
	180	}
	181
	182	/* set codec DAI configuration */
	183	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB \|
	184	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	185	if (ret < 0)
	186	return ret;
	187
	188	/* set cpu DAI configuration */
	189	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A \|
33745fb3	190	SND_SOC_DAIFMT_NB_IF \| SND_SOC_DAIFMT_CBS_CFS);
7377226c PZ	191	if (ret < 0)
	192	return ret;
	193
a5479e38	194	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
7377226c PZ	195	if (ret < 0)
	196	return ret;
	197
	198	/* set audio clock as clock source */
	199	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
	200	SND_SOC_CLOCK_OUT);
	201	if (ret < 0)
	202	return ret;
	203
	204	/* set the SSP audio system clock ACDS divider */
	205	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	206	PXA_SSP_AUDIO_DIV_ACDS, acds);
	207	if (ret < 0)
	208	return ret;
	209
	210	/* set the SSP audio system clock SCDB divider4 */
	211	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	212	PXA_SSP_AUDIO_DIV_SCDB, div4);
	213	if (ret < 0)
	214	return ret;
	215
	216	/* set SSP audio pll clock */
85488037	217	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
7377226c PZ	218	if (ret < 0)
	219	return ret;
	220
	221	return 0;
	222	}
	223
	224	/*
	225	* Magician uses I2S for capture.
	226	*/
	227	static int magician_capture_hw_params(struct snd_pcm_substream *substream,
	228	struct snd_pcm_hw_params *params)
	229	{
	230	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	231	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	232	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
7377226c PZ	233	int ret = 0;
	234
	235	/* set codec DAI configuration */
	236	ret = snd_soc_dai_set_fmt(codec_dai,
	237	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	238	SND_SOC_DAIFMT_CBS_CFS);
	239	if (ret < 0)
	240	return ret;
	241
	242	/* set cpu DAI configuration */
	243	ret = snd_soc_dai_set_fmt(cpu_dai,
	244	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	245	SND_SOC_DAIFMT_CBS_CFS);
	246	if (ret < 0)
	247	return ret;
	248
	249	/* set the I2S system clock as output */
	250	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
	251	SND_SOC_CLOCK_OUT);
	252	if (ret < 0)
	253	return ret;
	254
	255	return 0;
	256	}
	257
	258	static struct snd_soc_ops magician_capture_ops = {
	259	.startup = magician_startup,
	260	.hw_params = magician_capture_hw_params,
	261	};
	262
	263	static struct snd_soc_ops magician_playback_ops = {
	264	.startup = magician_startup,
	265	.hw_params = magician_playback_hw_params,
	266	};
	267
	268	static int magician_get_hp(struct snd_kcontrol *kcontrol,
	269	struct snd_ctl_elem_value *ucontrol)
	270	{
	271	ucontrol->value.integer.value[0] = magician_hp_switch;
	272	return 0;
	273	}
	274
	275	static int magician_set_hp(struct snd_kcontrol *kcontrol,
	276	struct snd_ctl_elem_value *ucontrol)
	277	{
0fbd44ab	278	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
7377226c PZ	279
	280	if (magician_hp_switch == ucontrol->value.integer.value[0])
	281	return 0;
	282
	283	magician_hp_switch = ucontrol->value.integer.value[0];
0fbd44ab	284	magician_ext_control(&card->dapm);
7377226c PZ	285	return 1;
	286	}
	287
	288	static int magician_get_spk(struct snd_kcontrol *kcontrol,
	289	struct snd_ctl_elem_value *ucontrol)
	290	{
	291	ucontrol->value.integer.value[0] = magician_spk_switch;
	292	return 0;
	293	}
	294
	295	static int magician_set_spk(struct snd_kcontrol *kcontrol,
	296	struct snd_ctl_elem_value *ucontrol)
	297	{
0fbd44ab	298	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
7377226c PZ	299
	300	if (magician_spk_switch == ucontrol->value.integer.value[0])
	301	return 0;
	302
	303	magician_spk_switch = ucontrol->value.integer.value[0];
0fbd44ab	304	magician_ext_control(&card->dapm);
7377226c PZ	305	return 1;
	306	}
	307
	308	static int magician_get_input(struct snd_kcontrol *kcontrol,
	309	struct snd_ctl_elem_value *ucontrol)
	310	{
127ee199	311	ucontrol->value.enumerated.item[0] = magician_in_sel;
7377226c PZ	312	return 0;
	313	}
	314
	315	static int magician_set_input(struct snd_kcontrol *kcontrol,
	316	struct snd_ctl_elem_value *ucontrol)
	317	{
127ee199	318	if (magician_in_sel == ucontrol->value.enumerated.item[0])
7377226c PZ	319	return 0;
7377226c PZ	320
127ee199	321	magician_in_sel = ucontrol->value.enumerated.item[0];
7377226c PZ	322
	323	switch (magician_in_sel) {
	324	case MAGICIAN_MIC:
	325	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
	326	break;
	327	case MAGICIAN_MIC_EXT:
	328	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
	329	}
	330
	331	return 1;
	332	}
	333
	334	static int magician_spk_power(struct snd_soc_dapm_widget *w,
	335	struct snd_kcontrol *k, int event)
	336	{
	337	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
	338	return 0;
	339	}
	340
	341	static int magician_hp_power(struct snd_soc_dapm_widget *w,
	342	struct snd_kcontrol *k, int event)
	343	{
	344	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
	345	return 0;
	346	}
	347
	348	static int magician_mic_bias(struct snd_soc_dapm_widget *w,
	349	struct snd_kcontrol *k, int event)
	350	{
	351	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
	352	return 0;
	353	}
	354
	355	/* magician machine dapm widgets */
	356	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
	357	SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
	358	SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
	359	SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
	360	SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
	361	};
	362
	363	/* magician machine audio_map */
	364	static const struct snd_soc_dapm_route audio_map[] = {
	365
	366	/* Headphone connected to VOUTL, VOUTR */
	367	{"Headphone Jack", NULL, "VOUTL"},
	368	{"Headphone Jack", NULL, "VOUTR"},
	369
	370	/* Speaker connected to VOUTL, VOUTR */
	371	{"Speaker", NULL, "VOUTL"},
	372	{"Speaker", NULL, "VOUTR"},
	373
	374	/* Mics are connected to VINM */
	375	{"VINM", NULL, "Headset Mic"},
	376	{"VINM", NULL, "Call Mic"},
	377	};
	378
	379	static const char *input_select[] = {"Call Mic", "Headset Mic"};
	380	static const struct soc_enum magician_in_sel_enum =
	381	SOC_ENUM_SINGLE_EXT(2, input_select);
	382
	383	static const struct snd_kcontrol_new uda1380_magician_controls[] = {
	384	SOC_SINGLE_BOOL_EXT("Headphone Switch",
	385	(unsigned long)&magician_hp_switch,
386	magician_get_hp, magician_set_hp),
387	SOC_SINGLE_BOOL_EXT("Speaker Switch",
388	(unsigned long)&magician_spk_switch,
389	magician_get_spk, magician_set_spk),
390	SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
391	magician_get_input, magician_set_input),
392	};
393
7377226c PZ	394	/* magician digital audio interface glue - connects codec <--> CPU */
	395	static struct snd_soc_dai_link magician_dai[] = {
	396	{
	397	.name = "uda1380",
	398	.stream_name = "UDA1380 Playback",
f0fba2ad LG	399	.cpu_dai_name = "pxa-ssp-dai.0",
	400	.codec_dai_name = "uda1380-hifi-playback",
	401	.platform_name = "pxa-pcm-audio",
	402	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	403	.ops = &magician_playback_ops,
	404	},
	405	{
	406	.name = "uda1380",
	407	.stream_name = "UDA1380 Capture",
a2a0086d	408	.cpu_dai_name = "pxa2xx-i2s",
f0fba2ad LG	409	.codec_dai_name = "uda1380-hifi-capture",
	410	.platform_name = "pxa-pcm-audio",
	411	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	412	.ops = &magician_capture_ops,
	413	}
	414	};
	415
	416	/* magician audio machine driver */
	417	static struct snd_soc_card snd_soc_card_magician = {
	418	.name = "Magician",
561c6a17	419	.owner = THIS_MODULE,
7377226c PZ	420	.dai_link = magician_dai,
7377226c PZ	421	.num_links = ARRAY_SIZE(magician_dai),
7377226c	422
0fbd44ab LPC	423	.controls = uda1380_magician_controls,
	424	.num_controls = ARRAY_SIZE(uda1380_magician_controls),
	425	.dapm_widgets = uda1380_dapm_widgets,
	426	.num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
	427	.dapm_routes = audio_map,
	428	.num_dapm_routes = ARRAY_SIZE(audio_map),
3cfaaaa0	429	.fully_routed = true,
7377226c PZ	430	};
	431
	432	static struct platform_device *magician_snd_device;
	433
1abd9184 PZ	434	/*
	435	* FIXME: move into magician board file once merged into the pxa tree
	436	*/
	437	static struct uda1380_platform_data uda1380_info = {
	438	.gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
	439	.gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
	440	.dac_clk = UDA1380_DAC_CLK_WSPLL,
	441	};
	442
	443	static struct i2c_board_info i2c_board_info[] = {
	444	{
	445	I2C_BOARD_INFO("uda1380", 0x18),
	446	.platform_data = &uda1380_info,
	447	},
	448	};
	449
7377226c PZ	450	static int __init magician_init(void)
	451	{
	452	int ret;
1abd9184 PZ	453	struct i2c_adapter *adapter;
1abd9184 PZ	454	struct i2c_client *client;
7377226c PZ	455
	456	if (!machine_is_magician())
	457	return -ENODEV;
	458
1abd9184 PZ	459	adapter = i2c_get_adapter(0);
	460	if (!adapter)
	461	return -ENODEV;
	462	client = i2c_new_device(adapter, i2c_board_info);
	463	i2c_put_adapter(adapter);
	464	if (!client)
	465	return -ENODEV;
	466
7377226c PZ	467	ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
	468	if (ret)
	469	goto err_request_spk;
	470	ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
	471	if (ret)
	472	goto err_request_ep;
	473	ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
	474	if (ret)
	475	goto err_request_mic;
	476	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
	477	if (ret)
	478	goto err_request_in_sel0;
	479	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
	480	if (ret)
	481	goto err_request_in_sel1;
	482
7377226c PZ	483	gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
7377226c PZ	484
7377226c PZ	485	magician_snd_device = platform_device_alloc("soc-audio", -1);
	486	if (!magician_snd_device) {
	487	ret = -ENOMEM;
	488	goto err_pdev;
	489	}
	490
f0fba2ad	491	platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
7377226c PZ	492	ret = platform_device_add(magician_snd_device);
	493	if (ret) {
	494	platform_device_put(magician_snd_device);
	495	goto err_pdev;
	496	}
	497
	498	return 0;
	499
	500	err_pdev:
	501	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	502	err_request_in_sel1:
	503	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	504	err_request_in_sel0:
	505	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	506	err_request_mic:
	507	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	508	err_request_ep:
	509	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
	510	err_request_spk:
7377226c PZ	511	return ret;
	512	}
	513
	514	static void __exit magician_exit(void)
	515	{
	516	platform_device_unregister(magician_snd_device);
	517
	518	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
	519	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
	520	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
7377226c PZ	521
	522	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	523	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	524	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	525	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	526	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
7377226c PZ	527	}
	528
	529	module_init(magician_init);
	530	module_exit(magician_exit);
	531
	532	MODULE_AUTHOR("Philipp Zabel");
	533	MODULE_DESCRIPTION("ALSA SoC Magician");
	534	MODULE_LICENSE("GPL");