[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/soc-dapm.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_codec *codec)
{
	if (magician_spk_switch)
		snd_soc_dapm_enable_pin(codec, "Speaker");
	else
		snd_soc_dapm_disable_pin(codec, "Speaker");
	if (magician_hp_switch)
		snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	else
		snd_soc_dapm_disable_pin(codec, "Headphone Jack");

	switch (magician_in_sel) {
	case MAGICIAN_MIC:
		snd_soc_dapm_disable_pin(codec, "Headset Mic");
		snd_soc_dapm_enable_pin(codec, "Call Mic");
		break;
	case MAGICIAN_MIC_EXT:
		snd_soc_dapm_disable_pin(codec, "Call Mic");
		snd_soc_dapm_enable_pin(codec, "Headset Mic");
		break;
	}

	snd_soc_dapm_sync(codec);
}

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

	/* check the jack status at stream startup */
	magician_ext_control(codec);

	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, rate;
	unsigned int div4 = PXA_SSP_CLK_SCDB_4;
	int ret = 0;

	rate = params_rate(params);
	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_codec *codec = 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(codec);
	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_codec *codec = 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(codec);
	return 1;
}

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

	magician_in_sel = ucontrol->value.integer.value[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),
};

/*
 * Logic for a uda1380 as connected on a HTC Magician
 */
static int magician_uda1380_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	int err;

	/* NC codec pins */
	snd_soc_dapm_nc_pin(codec, "VOUTLHP");
	snd_soc_dapm_nc_pin(codec, "VOUTRHP");

	/* FIXME: is anything connected here? */
	snd_soc_dapm_nc_pin(codec, "VINL");
	snd_soc_dapm_nc_pin(codec, "VINR");

	/* Add magician specific controls */
	err = snd_soc_add_controls(codec, uda1380_magician_controls,
				ARRAY_SIZE(uda1380_magician_controls));
	if (err < 0)
		return err;

	/* Add magician specific widgets */
	snd_soc_dapm_new_controls(codec, uda1380_dapm_widgets,
				  ARRAY_SIZE(uda1380_dapm_widgets));

	/* Set up magician specific audio path interconnects */
	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_sync(codec);
	return 0;
}

/* 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",
	.init = magician_uda1380_init,
	.ops = &magician_playback_ops,
},
{
	.name = "uda1380",
	.stream_name = "UDA1380 Capture",
	.cpu_dai_name = "pxa-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",
	.dai_link = magician_dai,
	.num_links = ARRAY_SIZE(magician_dai),

};

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>
	29	#include <sound/soc-dapm.h>
1abd9184	30	#include <sound/uda1380.h>
7377226c	31
7377226c PZ	32	#include <mach/magician.h>
	33	#include <asm/mach-types.h>
	34	#include "../codecs/uda1380.h"
7377226c PZ	35	#include "pxa2xx-i2s.h"
	36	#include "pxa-ssp.h"
	37
	38	#define MAGICIAN_MIC 0
	39	#define MAGICIAN_MIC_EXT 1
	40
	41	static int magician_hp_switch;
	42	static int magician_spk_switch = 1;
	43	static int magician_in_sel = MAGICIAN_MIC;
	44
	45	static void magician_ext_control(struct snd_soc_codec *codec)
	46	{
	47	if (magician_spk_switch)
	48	snd_soc_dapm_enable_pin(codec, "Speaker");
	49	else
	50	snd_soc_dapm_disable_pin(codec, "Speaker");
	51	if (magician_hp_switch)
	52	snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	53	else
	54	snd_soc_dapm_disable_pin(codec, "Headphone Jack");
	55
	56	switch (magician_in_sel) {
	57	case MAGICIAN_MIC:
	58	snd_soc_dapm_disable_pin(codec, "Headset Mic");
	59	snd_soc_dapm_enable_pin(codec, "Call Mic");
	60	break;
	61	case MAGICIAN_MIC_EXT:
	62	snd_soc_dapm_disable_pin(codec, "Call Mic");
	63	snd_soc_dapm_enable_pin(codec, "Headset Mic");
	64	break;
	65	}
	66
	67	snd_soc_dapm_sync(codec);
	68	}
	69
	70	static int magician_startup(struct snd_pcm_substream *substream)
	71	{
	72	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	73	struct snd_soc_codec *codec = rtd->codec;
7377226c PZ	74
	75	/* check the jack status at stream startup */
	76	magician_ext_control(codec);
	77
	78	return 0;
	79	}
	80
	81	/*
	82	* Magician uses SSP port for playback.
	83	*/
	84	static int magician_playback_hw_params(struct snd_pcm_substream *substream,
	85	struct snd_pcm_hw_params *params)
	86	{
	87	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	88	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	89	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
7377226c PZ	90	unsigned int acps, acds, width, rate;
	91	unsigned int div4 = PXA_SSP_CLK_SCDB_4;
	92	int ret = 0;
	93
	94	rate = params_rate(params);
	95	width = snd_pcm_format_physical_width(params_format(params));
	96
	97	/*
	98	* rate = SSPSCLK / (2 * width(16 or 32))
	99	* SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
	100	*/
	101	switch (params_rate(params)) {
	102	case 8000:
	103	/* off by a factor of 2: bug in the PXA27x audio clock? */
	104	acps = 32842000;
	105	switch (width) {
	106	case 16:
	107	/* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
	108	acds = PXA_SSP_CLK_AUDIO_DIV_16;
	109	break;
2bf2778e	110	default: /* 32 */
7377226c PZ	111	/* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
	112	acds = PXA_SSP_CLK_AUDIO_DIV_8;
	113	}
	114	break;
	115	case 11025:
	116	acps = 5622000;
	117	switch (width) {
	118	case 16:
	119	/* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
	120	acds = PXA_SSP_CLK_AUDIO_DIV_4;
	121	break;
2bf2778e	122	default: /* 32 */
7377226c PZ	123	/* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
	124	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	125	}
	126	break;
	127	case 22050:
	128	acps = 5622000;
	129	switch (width) {
	130	case 16:
	131	/* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
	132	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	133	break;
2bf2778e	134	default: /* 32 */
7377226c PZ	135	/* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
	136	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	137	}
	138	break;
	139	case 44100:
	140	acps = 5622000;
	141	switch (width) {
	142	case 16:
	143	/* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
	144	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	145	break;
2bf2778e	146	default: /* 32 */
7377226c PZ	147	/* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
	148	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	149	}
	150	break;
	151	case 48000:
	152	acps = 12235000;
	153	switch (width) {
	154	case 16:
	155	/* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
	156	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	157	break;
2bf2778e	158	default: /* 32 */
7377226c PZ	159	/* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
	160	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	161	}
	162	break;
	163	case 96000:
2bf2778e	164	default:
7377226c PZ	165	acps = 12235000;
	166	switch (width) {
	167	case 16:
	168	/* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
	169	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	170	break;
2bf2778e	171	default: /* 32 */
7377226c PZ	172	/* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
	173	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	174	div4 = PXA_SSP_CLK_SCDB_1;
	175	break;
	176	}
	177	break;
	178	}
	179
	180	/* set codec DAI configuration */
	181	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB \|
	182	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	183	if (ret < 0)
	184	return ret;
	185
	186	/* set cpu DAI configuration */
	187	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A \|
33745fb3	188	SND_SOC_DAIFMT_NB_IF \| SND_SOC_DAIFMT_CBS_CFS);
7377226c PZ	189	if (ret < 0)
	190	return ret;
	191
a5479e38	192	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
7377226c PZ	193	if (ret < 0)
	194	return ret;
	195
	196	/* set audio clock as clock source */
	197	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
	198	SND_SOC_CLOCK_OUT);
	199	if (ret < 0)
	200	return ret;
	201
	202	/* set the SSP audio system clock ACDS divider */
	203	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	204	PXA_SSP_AUDIO_DIV_ACDS, acds);
	205	if (ret < 0)
	206	return ret;
	207
	208	/* set the SSP audio system clock SCDB divider4 */
	209	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	210	PXA_SSP_AUDIO_DIV_SCDB, div4);
	211	if (ret < 0)
	212	return ret;
	213
	214	/* set SSP audio pll clock */
85488037	215	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
7377226c PZ	216	if (ret < 0)
	217	return ret;
	218
	219	return 0;
	220	}
	221
	222	/*
	223	* Magician uses I2S for capture.
	224	*/
	225	static int magician_capture_hw_params(struct snd_pcm_substream *substream,
	226	struct snd_pcm_hw_params *params)
	227	{
	228	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	229	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	230	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
7377226c PZ	231	int ret = 0;
	232
	233	/* set codec DAI configuration */
	234	ret = snd_soc_dai_set_fmt(codec_dai,
	235	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	236	SND_SOC_DAIFMT_CBS_CFS);
	237	if (ret < 0)
	238	return ret;
	239
	240	/* set cpu DAI configuration */
	241	ret = snd_soc_dai_set_fmt(cpu_dai,
	242	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	243	SND_SOC_DAIFMT_CBS_CFS);
	244	if (ret < 0)
	245	return ret;
	246
	247	/* set the I2S system clock as output */
	248	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
	249	SND_SOC_CLOCK_OUT);
	250	if (ret < 0)
	251	return ret;
	252
	253	return 0;
	254	}
	255
	256	static struct snd_soc_ops magician_capture_ops = {
	257	.startup = magician_startup,
	258	.hw_params = magician_capture_hw_params,
	259	};
	260
	261	static struct snd_soc_ops magician_playback_ops = {
	262	.startup = magician_startup,
	263	.hw_params = magician_playback_hw_params,
	264	};
	265
	266	static int magician_get_hp(struct snd_kcontrol *kcontrol,
	267	struct snd_ctl_elem_value *ucontrol)
	268	{
	269	ucontrol->value.integer.value[0] = magician_hp_switch;
	270	return 0;
	271	}
	272
	273	static int magician_set_hp(struct snd_kcontrol *kcontrol,
	274	struct snd_ctl_elem_value *ucontrol)
	275	{
	276	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	277
	278	if (magician_hp_switch == ucontrol->value.integer.value[0])
	279	return 0;
	280
	281	magician_hp_switch = ucontrol->value.integer.value[0];
	282	magician_ext_control(codec);
	283	return 1;
	284	}
	285
	286	static int magician_get_spk(struct snd_kcontrol *kcontrol,
	287	struct snd_ctl_elem_value *ucontrol)
	288	{
	289	ucontrol->value.integer.value[0] = magician_spk_switch;
	290	return 0;
	291	}
	292
	293	static int magician_set_spk(struct snd_kcontrol *kcontrol,
	294	struct snd_ctl_elem_value *ucontrol)
295	{
296	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
297
298	if (magician_spk_switch == ucontrol->value.integer.value[0])
299	return 0;
300
301	magician_spk_switch = ucontrol->value.integer.value[0];
302	magician_ext_control(codec);
303	return 1;
304	}
305
306	static int magician_get_input(struct snd_kcontrol *kcontrol,
307	struct snd_ctl_elem_value *ucontrol)
308	{
309	ucontrol->value.integer.value[0] = magician_in_sel;
310	return 0;
311	}
312
313	static int magician_set_input(struct snd_kcontrol *kcontrol,
314	struct snd_ctl_elem_value *ucontrol)
315	{
316	if (magician_in_sel == ucontrol->value.integer.value[0])
317	return 0;
318
319	magician_in_sel = ucontrol->value.integer.value[0];
320
321	switch (magician_in_sel) {
322	case MAGICIAN_MIC:
323	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
324	break;
325	case MAGICIAN_MIC_EXT:
326	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
327	}
328
329	return 1;
330	}
331
332	static int magician_spk_power(struct snd_soc_dapm_widget *w,
333	struct snd_kcontrol *k, int event)
334	{
335	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
336	return 0;
337	}
338
339	static int magician_hp_power(struct snd_soc_dapm_widget *w,
340	struct snd_kcontrol *k, int event)
341	{
342	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
343	return 0;
344	}
345
346	static int magician_mic_bias(struct snd_soc_dapm_widget *w,
347	struct snd_kcontrol *k, int event)
348	{
349	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
350	return 0;
351	}
352
353	/* magician machine dapm widgets */
354	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
355	SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
356	SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
357	SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
358	SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
359	};
360
361	/* magician machine audio_map */
362	static const struct snd_soc_dapm_route audio_map[] = {
363
364	/* Headphone connected to VOUTL, VOUTR */
365	{"Headphone Jack", NULL, "VOUTL"},
366	{"Headphone Jack", NULL, "VOUTR"},
367
368	/* Speaker connected to VOUTL, VOUTR */
369	{"Speaker", NULL, "VOUTL"},
370	{"Speaker", NULL, "VOUTR"},
371
372	/* Mics are connected to VINM */
373	{"VINM", NULL, "Headset Mic"},
374	{"VINM", NULL, "Call Mic"},
375	};
376
377	static const char *input_select[] = {"Call Mic", "Headset Mic"};
378	static const struct soc_enum magician_in_sel_enum =
379	SOC_ENUM_SINGLE_EXT(2, input_select);
380
381	static const struct snd_kcontrol_new uda1380_magician_controls[] = {
382	SOC_SINGLE_BOOL_EXT("Headphone Switch",
383	(unsigned long)&magician_hp_switch,
384	magician_get_hp, magician_set_hp),
385	SOC_SINGLE_BOOL_EXT("Speaker Switch",
386	(unsigned long)&magician_spk_switch,
387	magician_get_spk, magician_set_spk),
388	SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
389	magician_get_input, magician_set_input),
390	};
391
392	/*
393	* Logic for a uda1380 as connected on a HTC Magician
394	*/
f0fba2ad	395	static int magician_uda1380_init(struct snd_soc_pcm_runtime *rtd)
7377226c	396	{
f0fba2ad	397	struct snd_soc_codec *codec = rtd->codec;
7377226c PZ	398	int err;
	399
	400	/* NC codec pins */
	401	snd_soc_dapm_nc_pin(codec, "VOUTLHP");
	402	snd_soc_dapm_nc_pin(codec, "VOUTRHP");
	403
	404	/* FIXME: is anything connected here? */
	405	snd_soc_dapm_nc_pin(codec, "VINL");
	406	snd_soc_dapm_nc_pin(codec, "VINR");
	407
	408	/* Add magician specific controls */
	409	err = snd_soc_add_controls(codec, uda1380_magician_controls,
	410	ARRAY_SIZE(uda1380_magician_controls));
	411	if (err < 0)
	412	return err;
	413
	414	/* Add magician specific widgets */
	415	snd_soc_dapm_new_controls(codec, uda1380_dapm_widgets,
	416	ARRAY_SIZE(uda1380_dapm_widgets));
	417
	418	/* Set up magician specific audio path interconnects */
	419	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
	420
	421	snd_soc_dapm_sync(codec);
	422	return 0;
	423	}
	424
	425	/* magician digital audio interface glue - connects codec <--> CPU */
	426	static struct snd_soc_dai_link magician_dai[] = {
	427	{
	428	.name = "uda1380",
	429	.stream_name = "UDA1380 Playback",
f0fba2ad LG	430	.cpu_dai_name = "pxa-ssp-dai.0",
	431	.codec_dai_name = "uda1380-hifi-playback",
	432	.platform_name = "pxa-pcm-audio",
	433	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	434	.init = magician_uda1380_init,
	435	.ops = &magician_playback_ops,
	436	},
	437	{
	438	.name = "uda1380",
	439	.stream_name = "UDA1380 Capture",
f0fba2ad LG	440	.cpu_dai_name = "pxa-i2s",
	441	.codec_dai_name = "uda1380-hifi-capture",
	442	.platform_name = "pxa-pcm-audio",
	443	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	444	.ops = &magician_capture_ops,
	445	}
	446	};
	447
	448	/* magician audio machine driver */
	449	static struct snd_soc_card snd_soc_card_magician = {
	450	.name = "Magician",
	451	.dai_link = magician_dai,
	452	.num_links = ARRAY_SIZE(magician_dai),
7377226c	453
7377226c PZ	454	};
	455
	456	static struct platform_device *magician_snd_device;
	457
1abd9184 PZ	458	/*
	459	* FIXME: move into magician board file once merged into the pxa tree
	460	*/
	461	static struct uda1380_platform_data uda1380_info = {
	462	.gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
	463	.gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
	464	.dac_clk = UDA1380_DAC_CLK_WSPLL,
	465	};
	466
	467	static struct i2c_board_info i2c_board_info[] = {
	468	{
	469	I2C_BOARD_INFO("uda1380", 0x18),
	470	.platform_data = &uda1380_info,
	471	},
	472	};
	473
7377226c PZ	474	static int __init magician_init(void)
	475	{
	476	int ret;
1abd9184 PZ	477	struct i2c_adapter *adapter;
1abd9184 PZ	478	struct i2c_client *client;
7377226c PZ	479
	480	if (!machine_is_magician())
	481	return -ENODEV;
	482
1abd9184 PZ	483	adapter = i2c_get_adapter(0);
	484	if (!adapter)
	485	return -ENODEV;
	486	client = i2c_new_device(adapter, i2c_board_info);
	487	i2c_put_adapter(adapter);
	488	if (!client)
	489	return -ENODEV;
	490
7377226c PZ	491	ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
	492	if (ret)
	493	goto err_request_spk;
	494	ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
	495	if (ret)
	496	goto err_request_ep;
	497	ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
	498	if (ret)
	499	goto err_request_mic;
	500	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
	501	if (ret)
	502	goto err_request_in_sel0;
	503	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
	504	if (ret)
	505	goto err_request_in_sel1;
	506
7377226c PZ	507	gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
7377226c PZ	508
7377226c PZ	509	magician_snd_device = platform_device_alloc("soc-audio", -1);
	510	if (!magician_snd_device) {
	511	ret = -ENOMEM;
	512	goto err_pdev;
	513	}
	514
f0fba2ad	515	platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
7377226c PZ	516	ret = platform_device_add(magician_snd_device);
	517	if (ret) {
	518	platform_device_put(magician_snd_device);
	519	goto err_pdev;
	520	}
	521
	522	return 0;
	523
	524	err_pdev:
	525	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	526	err_request_in_sel1:
	527	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	528	err_request_in_sel0:
	529	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	530	err_request_mic:
	531	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	532	err_request_ep:
	533	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
	534	err_request_spk:
7377226c PZ	535	return ret;
	536	}
	537
	538	static void __exit magician_exit(void)
	539	{
	540	platform_device_unregister(magician_snd_device);
	541
	542	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
	543	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
	544	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
7377226c PZ	545
	546	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	547	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	548	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	549	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	550	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
7377226c PZ	551	}
	552
	553	module_init(magician_init);
	554	module_exit(magician_exit);
	555
	556	MODULE_AUTHOR("Philipp Zabel");
	557	MODULE_DESCRIPTION("ALSA SoC Magician");
	558	MODULE_LICENSE("GPL");