[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_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>
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
	44	static void magician_ext_control(struct snd_soc_codec *codec)
	45	{
ce6120cc LG	46	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce6120cc LG	47
7377226c	48	if (magician_spk_switch)
ce6120cc	49	snd_soc_dapm_enable_pin(dapm, "Speaker");
7377226c	50	else
ce6120cc	51	snd_soc_dapm_disable_pin(dapm, "Speaker");
7377226c	52	if (magician_hp_switch)
ce6120cc	53	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
7377226c	54	else
ce6120cc	55	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
7377226c PZ	56
	57	switch (magician_in_sel) {
	58	case MAGICIAN_MIC:
ce6120cc LG	59	snd_soc_dapm_disable_pin(dapm, "Headset Mic");
ce6120cc LG	60	snd_soc_dapm_enable_pin(dapm, "Call Mic");
7377226c PZ	61	break;
7377226c PZ	62	case MAGICIAN_MIC_EXT:
ce6120cc LG	63	snd_soc_dapm_disable_pin(dapm, "Call Mic");
ce6120cc LG	64	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
7377226c PZ	65	break;
	66	}
	67
ce6120cc	68	snd_soc_dapm_sync(dapm);
7377226c PZ	69	}
	70
	71	static int magician_startup(struct snd_pcm_substream *substream)
	72	{
	73	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	74	struct snd_soc_codec *codec = rtd->codec;
7377226c	75
71a29560 MB	76	mutex_lock(&codec->mutex);
71a29560 MB	77
7377226c PZ	78	/* check the jack status at stream startup */
	79	magician_ext_control(codec);
	80
71a29560 MB	81	mutex_unlock(&codec->mutex);
71a29560 MB	82
7377226c PZ	83	return 0;
	84	}
	85
	86	/*
	87	* Magician uses SSP port for playback.
	88	*/
	89	static int magician_playback_hw_params(struct snd_pcm_substream *substream,
	90	struct snd_pcm_hw_params *params)
	91	{
	92	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	93	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	94	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
7377226c PZ	95	unsigned int acps, acds, width, rate;
	96	unsigned int div4 = PXA_SSP_CLK_SCDB_4;
	97	int ret = 0;
	98
	99	rate = params_rate(params);
	100	width = snd_pcm_format_physical_width(params_format(params));
	101
	102	/*
	103	* rate = SSPSCLK / (2 * width(16 or 32))
	104	* SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
	105	*/
	106	switch (params_rate(params)) {
	107	case 8000:
	108	/* off by a factor of 2: bug in the PXA27x audio clock? */
	109	acps = 32842000;
	110	switch (width) {
	111	case 16:
	112	/* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
	113	acds = PXA_SSP_CLK_AUDIO_DIV_16;
	114	break;
2bf2778e	115	default: /* 32 */
7377226c PZ	116	/* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
	117	acds = PXA_SSP_CLK_AUDIO_DIV_8;
	118	}
	119	break;
	120	case 11025:
	121	acps = 5622000;
	122	switch (width) {
	123	case 16:
	124	/* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
	125	acds = PXA_SSP_CLK_AUDIO_DIV_4;
	126	break;
2bf2778e	127	default: /* 32 */
7377226c PZ	128	/* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
	129	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	130	}
	131	break;
	132	case 22050:
	133	acps = 5622000;
	134	switch (width) {
	135	case 16:
	136	/* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
	137	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	138	break;
2bf2778e	139	default: /* 32 */
7377226c PZ	140	/* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
	141	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	142	}
	143	break;
	144	case 44100:
	145	acps = 5622000;
	146	switch (width) {
	147	case 16:
	148	/* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
	149	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	150	break;
2bf2778e	151	default: /* 32 */
7377226c PZ	152	/* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
	153	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	154	}
	155	break;
	156	case 48000:
	157	acps = 12235000;
	158	switch (width) {
	159	case 16:
	160	/* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
	161	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	162	break;
2bf2778e	163	default: /* 32 */
7377226c PZ	164	/* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
	165	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	166	}
	167	break;
	168	case 96000:
2bf2778e	169	default:
7377226c PZ	170	acps = 12235000;
	171	switch (width) {
	172	case 16:
	173	/* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
	174	acds = PXA_SSP_CLK_AUDIO_DIV_1;
	175	break;
2bf2778e	176	default: /* 32 */
7377226c PZ	177	/* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
	178	acds = PXA_SSP_CLK_AUDIO_DIV_2;
	179	div4 = PXA_SSP_CLK_SCDB_1;
	180	break;
	181	}
	182	break;
	183	}
	184
	185	/* set codec DAI configuration */
	186	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB \|
	187	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	188	if (ret < 0)
	189	return ret;
	190
	191	/* set cpu DAI configuration */
	192	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A \|
33745fb3	193	SND_SOC_DAIFMT_NB_IF \| SND_SOC_DAIFMT_CBS_CFS);
7377226c PZ	194	if (ret < 0)
	195	return ret;
	196
a5479e38	197	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
7377226c PZ	198	if (ret < 0)
	199	return ret;
	200
	201	/* set audio clock as clock source */
	202	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
	203	SND_SOC_CLOCK_OUT);
	204	if (ret < 0)
	205	return ret;
	206
	207	/* set the SSP audio system clock ACDS divider */
	208	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	209	PXA_SSP_AUDIO_DIV_ACDS, acds);
	210	if (ret < 0)
	211	return ret;
	212
	213	/* set the SSP audio system clock SCDB divider4 */
	214	ret = snd_soc_dai_set_clkdiv(cpu_dai,
	215	PXA_SSP_AUDIO_DIV_SCDB, div4);
	216	if (ret < 0)
	217	return ret;
	218
	219	/* set SSP audio pll clock */
85488037	220	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
7377226c PZ	221	if (ret < 0)
	222	return ret;
	223
	224	return 0;
	225	}
	226
	227	/*
	228	* Magician uses I2S for capture.
	229	*/
	230	static int magician_capture_hw_params(struct snd_pcm_substream *substream,
	231	struct snd_pcm_hw_params *params)
	232	{
	233	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	234	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	235	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
7377226c PZ	236	int ret = 0;
	237
	238	/* set codec DAI configuration */
	239	ret = snd_soc_dai_set_fmt(codec_dai,
	240	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	241	SND_SOC_DAIFMT_CBS_CFS);
	242	if (ret < 0)
	243	return ret;
	244
	245	/* set cpu DAI configuration */
	246	ret = snd_soc_dai_set_fmt(cpu_dai,
	247	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	248	SND_SOC_DAIFMT_CBS_CFS);
	249	if (ret < 0)
	250	return ret;
	251
	252	/* set the I2S system clock as output */
	253	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
	254	SND_SOC_CLOCK_OUT);
	255	if (ret < 0)
	256	return ret;
	257
	258	return 0;
	259	}
	260
	261	static struct snd_soc_ops magician_capture_ops = {
	262	.startup = magician_startup,
	263	.hw_params = magician_capture_hw_params,
	264	};
	265
	266	static struct snd_soc_ops magician_playback_ops = {
	267	.startup = magician_startup,
	268	.hw_params = magician_playback_hw_params,
	269	};
	270
	271	static int magician_get_hp(struct snd_kcontrol *kcontrol,
	272	struct snd_ctl_elem_value *ucontrol)
	273	{
	274	ucontrol->value.integer.value[0] = magician_hp_switch;
	275	return 0;
	276	}
	277
	278	static int magician_set_hp(struct snd_kcontrol *kcontrol,
	279	struct snd_ctl_elem_value *ucontrol)
	280	{
	281	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	282
	283	if (magician_hp_switch == ucontrol->value.integer.value[0])
	284	return 0;
	285
	286	magician_hp_switch = ucontrol->value.integer.value[0];
	287	magician_ext_control(codec);
	288	return 1;
	289	}
	290
	291	static int magician_get_spk(struct snd_kcontrol *kcontrol,
	292	struct snd_ctl_elem_value *ucontrol)
	293	{
	294	ucontrol->value.integer.value[0] = magician_spk_switch;
	295	return 0;
	296	}
	297
	298	static int magician_set_spk(struct snd_kcontrol *kcontrol,
	299	struct snd_ctl_elem_value *ucontrol)
300	{
301	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
302
303	if (magician_spk_switch == ucontrol->value.integer.value[0])
304	return 0;
305
306	magician_spk_switch = ucontrol->value.integer.value[0];
307	magician_ext_control(codec);
308	return 1;
309	}
310
311	static int magician_get_input(struct snd_kcontrol *kcontrol,
312	struct snd_ctl_elem_value *ucontrol)
313	{
314	ucontrol->value.integer.value[0] = magician_in_sel;
315	return 0;
316	}
317
318	static int magician_set_input(struct snd_kcontrol *kcontrol,
319	struct snd_ctl_elem_value *ucontrol)
320	{
321	if (magician_in_sel == ucontrol->value.integer.value[0])
322	return 0;
323
324	magician_in_sel = ucontrol->value.integer.value[0];
325
326	switch (magician_in_sel) {
327	case MAGICIAN_MIC:
328	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
329	break;
330	case MAGICIAN_MIC_EXT:
331	gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
332	}
333
334	return 1;
335	}
336
337	static int magician_spk_power(struct snd_soc_dapm_widget *w,
338	struct snd_kcontrol *k, int event)
339	{
340	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
341	return 0;
342	}
343
344	static int magician_hp_power(struct snd_soc_dapm_widget *w,
345	struct snd_kcontrol *k, int event)
346	{
347	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
348	return 0;
349	}
350
351	static int magician_mic_bias(struct snd_soc_dapm_widget *w,
352	struct snd_kcontrol *k, int event)
353	{
354	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
355	return 0;
356	}
357
358	/* magician machine dapm widgets */
359	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
360	SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
361	SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
362	SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
363	SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
364	};
365
366	/* magician machine audio_map */
367	static const struct snd_soc_dapm_route audio_map[] = {
368
369	/* Headphone connected to VOUTL, VOUTR */
370	{"Headphone Jack", NULL, "VOUTL"},
371	{"Headphone Jack", NULL, "VOUTR"},
372
373	/* Speaker connected to VOUTL, VOUTR */
374	{"Speaker", NULL, "VOUTL"},
375	{"Speaker", NULL, "VOUTR"},
376
377	/* Mics are connected to VINM */
378	{"VINM", NULL, "Headset Mic"},
379	{"VINM", NULL, "Call Mic"},
380	};
381
382	static const char *input_select[] = {"Call Mic", "Headset Mic"};
383	static const struct soc_enum magician_in_sel_enum =
384	SOC_ENUM_SINGLE_EXT(2, input_select);
385
386	static const struct snd_kcontrol_new uda1380_magician_controls[] = {
387	SOC_SINGLE_BOOL_EXT("Headphone Switch",
388	(unsigned long)&magician_hp_switch,
389	magician_get_hp, magician_set_hp),
390	SOC_SINGLE_BOOL_EXT("Speaker Switch",
391	(unsigned long)&magician_spk_switch,
392	magician_get_spk, magician_set_spk),
393	SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
394	magician_get_input, magician_set_input),
395	};
396
397	/*
398	* Logic for a uda1380 as connected on a HTC Magician
399	*/
f0fba2ad	400	static int magician_uda1380_init(struct snd_soc_pcm_runtime *rtd)
7377226c	401	{
f0fba2ad	402	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	403	struct snd_soc_dapm_context *dapm = &codec->dapm;
7377226c PZ	404	int err;
	405
	406	/* NC codec pins */
ce6120cc LG	407	snd_soc_dapm_nc_pin(dapm, "VOUTLHP");
ce6120cc LG	408	snd_soc_dapm_nc_pin(dapm, "VOUTRHP");
7377226c PZ	409
7377226c PZ	410	/* FIXME: is anything connected here? */
ce6120cc LG	411	snd_soc_dapm_nc_pin(dapm, "VINL");
ce6120cc LG	412	snd_soc_dapm_nc_pin(dapm, "VINR");
7377226c PZ	413
	414	/* Add magician specific controls */
	415	err = snd_soc_add_controls(codec, uda1380_magician_controls,
	416	ARRAY_SIZE(uda1380_magician_controls));
	417	if (err < 0)
	418	return err;
	419
	420	/* Add magician specific widgets */
ce6120cc	421	snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
7377226c PZ	422	ARRAY_SIZE(uda1380_dapm_widgets));
	423
	424	/* Set up magician specific audio path interconnects */
ce6120cc	425	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
7377226c	426
ce6120cc	427	snd_soc_dapm_sync(dapm);
7377226c PZ	428	return 0;
	429	}
	430
	431	/* magician digital audio interface glue - connects codec <--> CPU */
	432	static struct snd_soc_dai_link magician_dai[] = {
	433	{
	434	.name = "uda1380",
	435	.stream_name = "UDA1380 Playback",
f0fba2ad LG	436	.cpu_dai_name = "pxa-ssp-dai.0",
	437	.codec_dai_name = "uda1380-hifi-playback",
	438	.platform_name = "pxa-pcm-audio",
	439	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	440	.init = magician_uda1380_init,
	441	.ops = &magician_playback_ops,
	442	},
	443	{
	444	.name = "uda1380",
	445	.stream_name = "UDA1380 Capture",
a2a0086d	446	.cpu_dai_name = "pxa2xx-i2s",
f0fba2ad LG	447	.codec_dai_name = "uda1380-hifi-capture",
	448	.platform_name = "pxa-pcm-audio",
	449	.codec_name = "uda1380-codec.0-0018",
7377226c PZ	450	.ops = &magician_capture_ops,
	451	}
	452	};
	453
	454	/* magician audio machine driver */
	455	static struct snd_soc_card snd_soc_card_magician = {
	456	.name = "Magician",
	457	.dai_link = magician_dai,
	458	.num_links = ARRAY_SIZE(magician_dai),
7377226c	459
7377226c PZ	460	};
	461
	462	static struct platform_device *magician_snd_device;
	463
1abd9184 PZ	464	/*
	465	* FIXME: move into magician board file once merged into the pxa tree
	466	*/
	467	static struct uda1380_platform_data uda1380_info = {
	468	.gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
	469	.gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
	470	.dac_clk = UDA1380_DAC_CLK_WSPLL,
	471	};
	472
	473	static struct i2c_board_info i2c_board_info[] = {
	474	{
	475	I2C_BOARD_INFO("uda1380", 0x18),
	476	.platform_data = &uda1380_info,
	477	},
	478	};
	479
7377226c PZ	480	static int __init magician_init(void)
	481	{
	482	int ret;
1abd9184 PZ	483	struct i2c_adapter *adapter;
1abd9184 PZ	484	struct i2c_client *client;
7377226c PZ	485
	486	if (!machine_is_magician())
	487	return -ENODEV;
	488
1abd9184 PZ	489	adapter = i2c_get_adapter(0);
	490	if (!adapter)
	491	return -ENODEV;
	492	client = i2c_new_device(adapter, i2c_board_info);
	493	i2c_put_adapter(adapter);
	494	if (!client)
	495	return -ENODEV;
	496
7377226c PZ	497	ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
	498	if (ret)
	499	goto err_request_spk;
	500	ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
	501	if (ret)
	502	goto err_request_ep;
	503	ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
	504	if (ret)
	505	goto err_request_mic;
	506	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
	507	if (ret)
	508	goto err_request_in_sel0;
	509	ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
	510	if (ret)
	511	goto err_request_in_sel1;
	512
7377226c PZ	513	gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
7377226c PZ	514
7377226c PZ	515	magician_snd_device = platform_device_alloc("soc-audio", -1);
	516	if (!magician_snd_device) {
	517	ret = -ENOMEM;
	518	goto err_pdev;
	519	}
	520
f0fba2ad	521	platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
7377226c PZ	522	ret = platform_device_add(magician_snd_device);
	523	if (ret) {
	524	platform_device_put(magician_snd_device);
	525	goto err_pdev;
	526	}
	527
	528	return 0;
	529
	530	err_pdev:
	531	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	532	err_request_in_sel1:
	533	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	534	err_request_in_sel0:
	535	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	536	err_request_mic:
	537	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	538	err_request_ep:
	539	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
	540	err_request_spk:
7377226c PZ	541	return ret;
	542	}
	543
	544	static void __exit magician_exit(void)
	545	{
	546	platform_device_unregister(magician_snd_device);
	547
	548	gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
	549	gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
	550	gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
7377226c PZ	551
	552	gpio_free(EGPIO_MAGICIAN_IN_SEL1);
	553	gpio_free(EGPIO_MAGICIAN_IN_SEL0);
	554	gpio_free(EGPIO_MAGICIAN_MIC_POWER);
	555	gpio_free(EGPIO_MAGICIAN_EP_POWER);
	556	gpio_free(EGPIO_MAGICIAN_SPK_POWER);
7377226c PZ	557	}
	558
	559	module_init(magician_init);
	560	module_exit(magician_exit);
	561
	562	MODULE_AUTHOR("Philipp Zabel");
	563	MODULE_DESCRIPTION("ALSA SoC Magician");
	564	MODULE_LICENSE("GPL");