[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)
{
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	if (magician_spk_switch)
		snd_soc_dapm_enable_pin(dapm, "Speaker");
	else
		snd_soc_dapm_disable_pin(dapm, "Speaker");
	if (magician_hp_switch)
		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	else
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");

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

	snd_soc_dapm_sync(dapm);
}

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;

	mutex_lock(&codec->mutex);

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

	mutex_unlock(&codec->mutex);

	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;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int err;

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

	/* FIXME: is anything connected here? */
	snd_soc_dapm_nc_pin(dapm, "VINL");
	snd_soc_dapm_nc_pin(dapm, "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(dapm, uda1380_dapm_widgets,
				  ARRAY_SIZE(uda1380_dapm_widgets));

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

	snd_soc_dapm_sync(dapm);
	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 = "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",
	.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	{
ce6120cc LG	47	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce6120cc LG	48
7377226c	49	if (magician_spk_switch)
ce6120cc	50	snd_soc_dapm_enable_pin(dapm, "Speaker");
7377226c	51	else
ce6120cc	52	snd_soc_dapm_disable_pin(dapm, "Speaker");
7377226c	53	if (magician_hp_switch)
ce6120cc	54	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
7377226c	55	else
ce6120cc	56	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
7377226c PZ	57
	58	switch (magician_in_sel) {
	59	case MAGICIAN_MIC:
ce6120cc LG	60	snd_soc_dapm_disable_pin(dapm, "Headset Mic");
ce6120cc LG	61	snd_soc_dapm_enable_pin(dapm, "Call Mic");
7377226c PZ	62	break;
7377226c PZ	63	case MAGICIAN_MIC_EXT:
ce6120cc LG	64	snd_soc_dapm_disable_pin(dapm, "Call Mic");
ce6120cc LG	65	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
7377226c PZ	66	break;
	67	}
	68
ce6120cc	69	snd_soc_dapm_sync(dapm);
7377226c PZ	70	}
	71
	72	static int magician_startup(struct snd_pcm_substream *substream)
	73	{
	74	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	75	struct snd_soc_codec *codec = rtd->codec;
7377226c	76
71a29560 MB	77	mutex_lock(&codec->mutex);
71a29560 MB	78
7377226c PZ	79	/* check the jack status at stream startup */
	80	magician_ext_control(codec);
	81
71a29560 MB	82	mutex_unlock(&codec->mutex);
71a29560 MB	83
7377226c PZ	84	return 0;
	85	}
	86
	87	/*
	88	* Magician uses SSP port for playback.
	89	*/
	90	static int magician_playback_hw_params(struct snd_pcm_substream *substream,
	91	struct snd_pcm_hw_params *params)
	92	{
	93	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	94	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	95	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
7377226c PZ	96	unsigned int acps, acds, width, rate;
	97	unsigned int div4 = PXA_SSP_CLK_SCDB_4;
	98	int ret = 0;
	99
	100	rate = params_rate(params);
	101	width = snd_pcm_format_physical_width(params_format(params));
	102
	103	/*
	104	* rate = SSPSCLK / (2 * width(16 or 32))
	105	* SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
	106	*/
	107	switch (params_rate(params)) {
	108	case 8000:
	109	/* off by a factor of 2: bug in the PXA27x audio clock? */
	110	acps = 32842000;
	111	switch (width) {
	112	case 16:
	113	/* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
	114	acds = PXA_SSP_CLK_AUDIO_DIV_16;
	115	break;
2bf2778e	116	default: /* 32 */
7377226c PZ	117	/* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
	118	acds = PXA_SSP_CLK_AUDIO_DIV_8;
	119	}
	120	break;
	121	case 11025:
	122	acps = 5622000;
	123	switch (width) {
	124	case 16:
	125	/* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
	126	acds = PXA_SSP_CLK_AUDIO_DIV_4;
	127	break;
2bf2778e	128	default: /* 32 */
7377226c PZ	129	/* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
	130	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	131	}
	132	break;
	133	case 22050:
	134	acps = 5622000;
	135	switch (width) {
	136	case 16:
	137	/* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
	138	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	139	break;
2bf2778e	140	default: /* 32 */
7377226c PZ	141	/* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
	142	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	143	}
	144	break;
	145	case 44100:
	146	acps = 5622000;
	147	switch (width) {
	148	case 16:
	149	/* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
	150	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	151	break;
2bf2778e	152	default: /* 32 */
7377226c PZ	153	/* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
	154	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	155	}
	156	break;
	157	case 48000:
	158	acps = 12235000;
	159	switch (width) {
	160	case 16:
	161	/* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
	162	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	163	break;
2bf2778e	164	default: /* 32 */
7377226c PZ	165	/* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
	166	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	167	}
	168	break;
	169	case 96000:
2bf2778e	170	default:
7377226c PZ	171	acps = 12235000;
	172	switch (width) {
	173	case 16:
	174	/* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
	175	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	176	break;
2bf2778e	177	default: /* 32 */
7377226c PZ	178	/* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
	179	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	180	div4 = PXA_SSP_CLK_SCDB_1;
	181	break;
	182	}
	183	break;
	184	}
	185
	186	/* set codec DAI configuration */
	187	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB \|
	188	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	189	if (ret < 0)
	190	return ret;
	191
	192	/* set cpu DAI configuration */
	193	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A \|
33745fb3	194	SND_SOC_DAIFMT_NB_IF \| SND_SOC_DAIFMT_CBS_CFS);
7377226c PZ	195	if (ret < 0)
	196	return ret;
	197
a5479e38	198	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
7377226c PZ	199	if (ret < 0)
	200	return ret;
	201
	202	/* set audio clock as clock source */
	203	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
	204	SND_SOC_CLOCK_OUT);
	205	if (ret < 0)
	206	return ret;
	207
	208	/* set the SSP audio system clock ACDS divider */
	209	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	210	PXA_SSP_AUDIO_DIV_ACDS, acds);
	211	if (ret < 0)
	212	return ret;
	213
	214	/* set the SSP audio system clock SCDB divider4 */
	215	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	216	PXA_SSP_AUDIO_DIV_SCDB, div4);
	217	if (ret < 0)
	218	return ret;
	219
	220	/* set SSP audio pll clock */
85488037	221	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
7377226c PZ	222	if (ret < 0)
	223	return ret;
	224
	225	return 0;
	226	}
	227
	228	/*
	229	* Magician uses I2S for capture.
	230	*/
	231	static int magician_capture_hw_params(struct snd_pcm_substream *substream,
	232	struct snd_pcm_hw_params *params)
	233	{
	234	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	235	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	236	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
7377226c PZ	237	int ret = 0;
	238
	239	/* set codec DAI configuration */
	240	ret = snd_soc_dai_set_fmt(codec_dai,
	241	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	242	SND_SOC_DAIFMT_CBS_CFS);
	243	if (ret < 0)
	244	return ret;
	245
	246	/* set cpu DAI configuration */
	247	ret = snd_soc_dai_set_fmt(cpu_dai,
	248	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	249	SND_SOC_DAIFMT_CBS_CFS);
	250	if (ret < 0)
	251	return ret;
	252
	253	/* set the I2S system clock as output */
	254	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
	255	SND_SOC_CLOCK_OUT);
	256	if (ret < 0)
	257	return ret;
	258
	259	return 0;
	260	}
	261
	262	static struct snd_soc_ops magician_capture_ops = {
	263	.startup = magician_startup,
	264	.hw_params = magician_capture_hw_params,
	265	};
	266
	267	static struct snd_soc_ops magician_playback_ops = {
	268	.startup = magician_startup,
	269	.hw_params = magician_playback_hw_params,
	270	};
	271
	272	static int magician_get_hp(struct snd_kcontrol *kcontrol,
	273	struct snd_ctl_elem_value *ucontrol)
	274	{
	275	ucontrol->value.integer.value[0] = magician_hp_switch;
	276	return 0;
	277	}
	278
	279	static int magician_set_hp(struct snd_kcontrol *kcontrol,
	280	struct snd_ctl_elem_value *ucontrol)
	281	{
	282	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	283
	284	if (magician_hp_switch == ucontrol->value.integer.value[0])
	285	return 0;
	286
	287	magician_hp_switch = ucontrol->value.integer.value[0];
	288	magician_ext_control(codec);
	289	return 1;
	290	}
	291
	292	static int magician_get_spk(struct snd_kcontrol *kcontrol,
	293	struct snd_ctl_elem_value *ucontrol)
	294	{
	295	ucontrol->value.integer.value[0] = magician_spk_switch;
	296	return 0;
	297	}
	298
	299	static int magician_set_spk(struct snd_kcontrol *kcontrol,
	300	struct snd_ctl_elem_value *ucontrol)
301	{
302	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
303
304	if (magician_spk_switch == ucontrol->value.integer.value[0])
305	return 0;
306
307	magician_spk_switch = ucontrol->value.integer.value[0];
308	magician_ext_control(codec);
309	return 1;
310	}
311
312	static int magician_get_input(struct snd_kcontrol *kcontrol,
313	struct snd_ctl_elem_value *ucontrol)
314	{
315	ucontrol->value.integer.value[0] = magician_in_sel;
316	return 0;
317	}
318
319	static int magician_set_input(struct snd_kcontrol *kcontrol,
320	struct snd_ctl_elem_value *ucontrol)
321	{
322	if (magician_in_sel == ucontrol->value.integer.value[0])
323	return 0;
324
325	magician_in_sel = ucontrol->value.integer.value[0];
326
327	switch (magician_in_sel) {
328	case MAGICIAN_MIC:
329	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
330	break;
331	case MAGICIAN_MIC_EXT:
332	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
333	}
334
335	return 1;
336	}
337
338	static int magician_spk_power(struct snd_soc_dapm_widget *w,
339	struct snd_kcontrol *k, int event)
340	{
341	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
342	return 0;
343	}
344
345	static int magician_hp_power(struct snd_soc_dapm_widget *w,
346	struct snd_kcontrol *k, int event)
347	{
348	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
349	return 0;
350	}
351
352	static int magician_mic_bias(struct snd_soc_dapm_widget *w,
353	struct snd_kcontrol *k, int event)
354	{
355	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
356	return 0;
357	}
358
359	/* magician machine dapm widgets */
360	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
361	SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
362	SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
363	SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
364	SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
365	};
366
367	/* magician machine audio_map */
368	static const struct snd_soc_dapm_route audio_map[] = {
369
370	/* Headphone connected to VOUTL, VOUTR */
371	{"Headphone Jack", NULL, "VOUTL"},
372	{"Headphone Jack", NULL, "VOUTR"},
373
374	/* Speaker connected to VOUTL, VOUTR */
375	{"Speaker", NULL, "VOUTL"},
376	{"Speaker", NULL, "VOUTR"},
377
378	/* Mics are connected to VINM */
379	{"VINM", NULL, "Headset Mic"},
380	{"VINM", NULL, "Call Mic"},
381	};
382
383	static const char *input_select[] = {"Call Mic", "Headset Mic"};
384	static const struct soc_enum magician_in_sel_enum =
385	SOC_ENUM_SINGLE_EXT(2, input_select);
386
387	static const struct snd_kcontrol_new uda1380_magician_controls[] = {
388	SOC_SINGLE_BOOL_EXT("Headphone Switch",
389	(unsigned long)&magician_hp_switch,
390	magician_get_hp, magician_set_hp),
391	SOC_SINGLE_BOOL_EXT("Speaker Switch",
392	(unsigned long)&magician_spk_switch,
393	magician_get_spk, magician_set_spk),
394	SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
395	magician_get_input, magician_set_input),
396	};
397
398	/*
399	* Logic for a uda1380 as connected on a HTC Magician
400	*/
f0fba2ad	401	static int magician_uda1380_init(struct snd_soc_pcm_runtime *rtd)
7377226c	402	{
f0fba2ad	403	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	404	struct snd_soc_dapm_context *dapm = &codec->dapm;
7377226c PZ	405	int err;
	406
	407	/* NC codec pins */
ce6120cc LG	408	snd_soc_dapm_nc_pin(dapm, "VOUTLHP");
ce6120cc LG	409	snd_soc_dapm_nc_pin(dapm, "VOUTRHP");
7377226c PZ	410
7377226c PZ	411	/* FIXME: is anything connected here? */
ce6120cc LG	412	snd_soc_dapm_nc_pin(dapm, "VINL");
ce6120cc LG	413	snd_soc_dapm_nc_pin(dapm, "VINR");
7377226c PZ	414
	415	/* Add magician specific controls */
	416	err = snd_soc_add_controls(codec, uda1380_magician_controls,
	417	ARRAY_SIZE(uda1380_magician_controls));
	418	if (err < 0)
	419	return err;
	420
	421	/* Add magician specific widgets */
ce6120cc	422	snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
7377226c PZ	423	ARRAY_SIZE(uda1380_dapm_widgets));
	424
	425	/* Set up magician specific audio path interconnects */
ce6120cc	426	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
7377226c	427
ce6120cc	428	snd_soc_dapm_sync(dapm);
7377226c PZ	429	return 0;
	430	}
	431
	432	/* magician digital audio interface glue - connects codec <--> CPU */
	433	static struct snd_soc_dai_link magician_dai[] = {
	434	{
	435	.name = "uda1380",
	436	.stream_name = "UDA1380 Playback",
f0fba2ad LG	437	.cpu_dai_name = "pxa-ssp-dai.0",
	438	.codec_dai_name = "uda1380-hifi-playback",
	439	.platform_name = "pxa-pcm-audio",
	440	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	441	.init = magician_uda1380_init,
	442	.ops = &magician_playback_ops,
	443	},
	444	{
	445	.name = "uda1380",
	446	.stream_name = "UDA1380 Capture",
a2a0086d	447	.cpu_dai_name = "pxa2xx-i2s",
f0fba2ad LG	448	.codec_dai_name = "uda1380-hifi-capture",
	449	.platform_name = "pxa-pcm-audio",
	450	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	451	.ops = &magician_capture_ops,
	452	}
	453	};
	454
	455	/* magician audio machine driver */
	456	static struct snd_soc_card snd_soc_card_magician = {
	457	.name = "Magician",
	458	.dai_link = magician_dai,
	459	.num_links = ARRAY_SIZE(magician_dai),
7377226c	460
7377226c PZ	461	};
	462
	463	static struct platform_device *magician_snd_device;
	464
1abd9184 PZ	465	/*
	466	* FIXME: move into magician board file once merged into the pxa tree
	467	*/
	468	static struct uda1380_platform_data uda1380_info = {
	469	.gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
	470	.gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
	471	.dac_clk = UDA1380_DAC_CLK_WSPLL,
	472	};
	473
	474	static struct i2c_board_info i2c_board_info[] = {
	475	{
	476	I2C_BOARD_INFO("uda1380", 0x18),
	477	.platform_data = &uda1380_info,
	478	},
	479	};
	480
7377226c PZ	481	static int __init magician_init(void)
	482	{
	483	int ret;
1abd9184 PZ	484	struct i2c_adapter *adapter;
1abd9184 PZ	485	struct i2c_client *client;
7377226c PZ	486
	487	if (!machine_is_magician())
	488	return -ENODEV;
	489
1abd9184 PZ	490	adapter = i2c_get_adapter(0);
	491	if (!adapter)
	492	return -ENODEV;
	493	client = i2c_new_device(adapter, i2c_board_info);
	494	i2c_put_adapter(adapter);
	495	if (!client)
	496	return -ENODEV;
	497
7377226c PZ	498	ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
	499	if (ret)
	500	goto err_request_spk;
	501	ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
	502	if (ret)
	503	goto err_request_ep;
	504	ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
	505	if (ret)
	506	goto err_request_mic;
	507	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
	508	if (ret)
	509	goto err_request_in_sel0;
	510	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
	511	if (ret)
	512	goto err_request_in_sel1;
	513
7377226c PZ	514	gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
7377226c PZ	515
7377226c PZ	516	magician_snd_device = platform_device_alloc("soc-audio", -1);
	517	if (!magician_snd_device) {
	518	ret = -ENOMEM;
	519	goto err_pdev;
	520	}
	521
f0fba2ad	522	platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
7377226c PZ	523	ret = platform_device_add(magician_snd_device);
	524	if (ret) {
	525	platform_device_put(magician_snd_device);
	526	goto err_pdev;
	527	}
	528
	529	return 0;
	530
	531	err_pdev:
	532	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	533	err_request_in_sel1:
	534	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	535	err_request_in_sel0:
	536	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	537	err_request_mic:
	538	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	539	err_request_ep:
	540	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
	541	err_request_spk:
7377226c PZ	542	return ret;
	543	}
	544
	545	static void __exit magician_exit(void)
	546	{
	547	platform_device_unregister(magician_snd_device);
	548
	549	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
	550	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
	551	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
7377226c PZ	552
	553	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	554	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	555	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	556	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	557	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
7377226c PZ	558	}
	559
	560	module_init(magician_init);
	561	module_exit(magician_exit);
	562
	563	MODULE_AUTHOR("Philipp Zabel");
	564	MODULE_DESCRIPTION("ALSA SoC Magician");
	565	MODULE_LICENSE("GPL");