patch_sigmatel.c

底层驱动开发

/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * HD audio interface patch for SigmaTel STAC92xx
 *
 * Copyright (c) 2005 Embedded Alley Solutions, Inc.
 * <[e-mail]>
 *
 * Based on patch_cmedia.c and patch_realtek.c
 * Copyright (c) 2004 Takashi Iwai <[e-mail]>
 *
 *  This driver 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.
 *
 *  This driver is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <sound/driver.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <sound/core.h>
#include <sound/asoundef.h>
#include "hda_codec.h"
#include "hda_local.h"

#undef STAC_TEST

#define NUM_CONTROL_ALLOC	32
#define STAC_HP_EVENT		0x37
#define STAC_UNSOL_ENABLE 	(AC_USRSP_EN | STAC_HP_EVENT)

struct sigmatel_spec {
	snd_kcontrol_new_t *mixers[4];
	unsigned int num_mixers;

	unsigned int surr_switch: 1;

	/* playback */
	struct hda_multi_out multiout;
	hda_nid_t dac_nids[4];

	/* capture */
	hda_nid_t *adc_nids;
	unsigned int num_adcs;
	hda_nid_t *mux_nids;
	unsigned int num_muxes;
	hda_nid_t dig_in_nid;

#ifdef STAC_TEST
	/* pin widgets */
	hda_nid_t *pin_nids;
	unsigned int num_pins;
	unsigned int *pin_configs;
#endif

	/* codec specific stuff */
	struct hda_verb *init;
	snd_kcontrol_new_t *mixer;

	/* capture source */
	struct hda_input_mux *input_mux;
	unsigned int cur_mux[2];

	/* channel mode */
	unsigned int num_ch_modes;
	unsigned int cur_ch_mode;

	struct hda_pcm pcm_rec[2];	/* PCM information */

	/* dynamic controls and input_mux */
	struct auto_pin_cfg autocfg;
	unsigned int num_kctl_alloc, num_kctl_used;
	snd_kcontrol_new_t *kctl_alloc;
	struct hda_input_mux private_imux;
};

static hda_nid_t stac9200_adc_nids[1] = {
        0x03,
};

static hda_nid_t stac9200_mux_nids[1] = {
        0x0c,
};

static hda_nid_t stac9200_dac_nids[1] = {
        0x02,
};

static hda_nid_t stac922x_adc_nids[2] = {
        0x06, 0x07,
};

static hda_nid_t stac922x_mux_nids[2] = {
        0x12, 0x13,
};

#ifdef STAC_TEST
static hda_nid_t stac9200_pin_nids[8] = {
	0x08, 0x09, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12,
};

static hda_nid_t stac922x_pin_nids[10] = {
	0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
	0x0f, 0x10, 0x11, 0x15, 0x1b,
};
#endif

static int stac92xx_mux_enum_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct sigmatel_spec *spec = codec->spec;
	return snd_hda_input_mux_info(spec->input_mux, uinfo);
}

static int stac92xx_mux_enum_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct sigmatel_spec *spec = codec->spec;
	unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

	ucontrol->value.enumerated.item[0] = spec->cur_mux[adc_idx];
	return 0;
}

static int stac92xx_mux_enum_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct sigmatel_spec *spec = codec->spec;
	unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

	return snd_hda_input_mux_put(codec, spec->input_mux, ucontrol,
				     spec->mux_nids[adc_idx], &spec->cur_mux[adc_idx]);
}

static struct hda_verb stac9200_core_init[] = {
	/* set dac0mux for dac converter */
	{ 0x07, AC_VERB_SET_CONNECT_SEL, 0x00},
	{}
};

static struct hda_verb stac922x_core_init[] = {
	/* set master volume and direct control */	
	{ 0x16, AC_VERB_SET_VOLUME_KNOB_CONTROL, 0xff},
	{}
};

static int stac922x_channel_modes[3] = {2, 6, 8};

static int stac922x_ch_mode_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct sigmatel_spec *spec = codec->spec;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = spec->num_ch_modes;
	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
	sprintf(uinfo->value.enumerated.name, "%dch",
		stac922x_channel_modes[uinfo->value.enumerated.item]);
	return 0;
}

static int stac922x_ch_mode_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct sigmatel_spec *spec = codec->spec;

	ucontrol->value.enumerated.item[0] = spec->cur_ch_mode;
	return 0;
}

static int stac922x_ch_mode_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct sigmatel_spec *spec = codec->spec;

	if (ucontrol->value.enumerated.item[0] >= spec->num_ch_modes)
		ucontrol->value.enumerated.item[0] = spec->num_ch_modes;
	if (ucontrol->value.enumerated.item[0] == spec->cur_ch_mode &&
	    ! codec->in_resume)
		return 0;

	spec->cur_ch_mode = ucontrol->value.enumerated.item[0];
	spec->multiout.max_channels = stac922x_channel_modes[spec->cur_ch_mode];

	return 1;
}

static snd_kcontrol_new_t stac9200_mixer[] = {
	HDA_CODEC_VOLUME("Master Playback Volume", 0xb, 0, HDA_OUTPUT),
	HDA_CODEC_MUTE("Master Playback Switch", 0xb, 0, HDA_OUTPUT),
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Input Source",
		.count = 1,
		.info = stac92xx_mux_enum_info,
		.get = stac92xx_mux_enum_get,
		.put = stac92xx_mux_enum_put,
	},
	HDA_CODEC_VOLUME("Capture Volume", 0x0a, 0, HDA_OUTPUT),
	HDA_CODEC_MUTE("Capture Switch", 0x0a, 0, HDA_OUTPUT),
	HDA_CODEC_VOLUME("Capture Mux Volume", 0x0c, 0, HDA_OUTPUT),
	{ } /* end */
};

/* This needs to be generated dynamically based on sequence */
static snd_kcontrol_new_t stac922x_mixer[] = {
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Input Source",
		.count = 1,
		.info = stac92xx_mux_enum_info,
		.get = stac92xx_mux_enum_get,
		.put = stac92xx_mux_enum_put,
	},
	HDA_CODEC_VOLUME("Capture Volume", 0x17, 0x0, HDA_INPUT),
	HDA_CODEC_MUTE("Capture Switch", 0x17, 0x0, HDA_INPUT),
	HDA_CODEC_VOLUME("Mux Capture Volume", 0x12, 0x0, HDA_OUTPUT),
	{ } /* end */
};

static snd_kcontrol_new_t stac922x_ch_mode_mixer[] = {
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Channel Mode",
		.info = stac922x_ch_mode_info,
		.get = stac922x_ch_mode_get,
		.put = stac922x_ch_mode_put,
	},
	{ } /* end */
};

static int stac92xx_build_controls(struct hda_codec *codec)
{
	struct sigmatel_spec *spec = codec->spec;
	int err;
	int i;

	err = snd_hda_add_new_ctls(codec, spec->mixer);
	if (err < 0)
		return err;

	for (i = 0; i < spec->num_mixers; i++) {
		err = snd_hda_add_new_ctls(codec, spec->mixers[i]);
		if (err < 0)
			return err;
	}

	if (spec->surr_switch) {
		err = snd_hda_add_new_ctls(codec, stac922x_ch_mode_mixer);
		if (err < 0)
			return err;
	}
	if (spec->multiout.dig_out_nid) {
		err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
		if (err < 0)
			return err;
	}
	if (spec->dig_in_nid) {
		err = snd_hda_create_spdif_in_ctls(codec, spec->dig_in_nid);
		if (err < 0)
			return err;
	}
	return 0;	
}

#ifdef STAC_TEST
static unsigned int stac9200_pin_configs[8] = {
	0x01c47010, 0x01447010, 0x0221401f, 0x01114010,
	0x02a19020, 0x01a19021, 0x90100140, 0x01813122,
};

static unsigned int stac922x_pin_configs[10] = {
	0x01014010, 0x01014011, 0x01014012, 0x0221401f,
	0x01813122, 0x01014014, 0x01441030, 0x01c41030,
	0x40000100, 0x40000100,
};

static void stac92xx_set_config_regs(struct hda_codec *codec)
{
	int i;
	struct sigmatel_spec *spec = codec->spec;
	unsigned int pin_cfg;

	for (i=0; i < spec->num_pins; i++) {
		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_0,
				    spec->pin_configs[i] & 0x000000ff);
		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_1,
				    (spec->pin_configs[i] & 0x0000ff00) >> 8);
		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_2,
				    (spec->pin_configs[i] & 0x00ff0000) >> 16);
		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_3,
				    spec->pin_configs[i] >> 24);
		pin_cfg = snd_hda_codec_read(codec, spec->pin_nids[i], 0,
					     AC_VERB_GET_CONFIG_DEFAULT,
					     0x00);	
		printk("pin nid %2.2x pin config %8.8x\n", spec->pin_nids[i], pin_cfg);
	}
}
#endif

/*
 * Analog playback callbacks
 */
static int stac92xx_playback_pcm_open(struct hda_pcm_stream *hinfo,
				      struct hda_codec *codec,
				      snd_pcm_substream_t *substream)
{
	struct sigmatel_spec *spec = codec->spec;
	return snd_hda_multi_out_analog_open(codec, &spec->multiout, substream);
}

/*
 * set up the i/o for analog out
 * when the digital out is available, copy the front out to digital out, too.
 */
static int stac92xx_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
				     unsigned int stream_tag,
				     unsigned int format,
				     snd_pcm_substream_t *substream)
{
	hda_nid_t *nids = mout->dac_nids;
	int chs = substream->runtime->channels;
	int i;

	down(&codec->spdif_mutex);
	if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
		if (chs == 2 &&
		    snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
		    ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
			mout->dig_out_used = HDA_DIG_ANALOG_DUP;
			/* setup digital receiver */
			snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
						   stream_tag, 0, format);
		} else {
			mout->dig_out_used = 0;
			snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
		}
	}
	up(&codec->spdif_mutex);

	/* front */
	snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
	if (mout->hp_nid)
		/* headphone out will just decode front left/right (stereo) */
		snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
	/* surrounds */
	if (mout->max_channels > 2)
		for (i = 1; i < mout->num_dacs; i++) {
			if ((mout->max_channels == 6) && (i == 3))
				break;
			if (chs >= (i + 1) * 2) /* independent out */
				snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
						format);
			else /* copy front */
				snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
						format);
		}
	return 0;
}


static int stac92xx_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
					 struct hda_codec *codec,
					 unsigned int stream_tag,
					 unsigned int format,
					 snd_pcm_substream_t *substream)
{
	struct sigmatel_spec *spec = codec->spec;
	return stac92xx_multi_out_analog_prepare(codec, &spec->multiout, stream_tag,
						format, substream);
}

static int stac92xx_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
					struct hda_codec *codec,
					snd_pcm_substream_t *substream)
{
	struct sigmatel_spec *spec = codec->spec;
	return snd_hda_multi_out_analog_cleanup(codec, &spec->multiout);
}

/*
 * Digital playback callbacks
 */
static int stac92xx_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
					  struct hda_codec *codec,
					  snd_pcm_substream_t *substream)
{
	struct sigmatel_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}

static int stac92xx_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
					   struct hda_codec *codec,
					   snd_pcm_substream_t *substream)
{
	struct sigmatel_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}


/*
 * Analog capture callbacks
 */
static int stac92xx_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
					struct hda_codec *codec,
					unsigned int stream_tag,
					unsigned int format,
					snd_pcm_substream_t *substream)
{
	struct sigmatel_spec *spec = codec->spec;

	snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number],
                                   stream_tag, 0, format);
	return 0;
}

static int stac92xx_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
					struct hda_codec *codec,
					snd_pcm_substream_t *substream)
{
	struct sigmatel_spec *spec = codec->spec;

	snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number], 0, 0, 0);
	return 0;
}

static struct hda_pcm_stream stac92xx_pcm_digital_playback = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 2,
	/* NID is set in stac92xx_build_pcms */
	.ops = {
		.open = stac92xx_dig_playback_pcm_open,
		.close = stac92xx_dig_playback_pcm_close
	},
};

static struct hda_pcm_stream stac92xx_pcm_digital_capture = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 2,
	/* NID is set in stac92xx_build_pcms */
};

static struct hda_pcm_stream stac92xx_pcm_analog_playback = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 8,
	.nid = 0x02, /* NID to query formats and rates */
	.ops = {
		.open = stac92xx_playback_pcm_open,
		.prepare = stac92xx_playback_pcm_prepare,
		.cleanup = stac92xx_playback_pcm_cleanup
	},
};

static struct hda_pcm_stream stac92xx_pcm_analog_capture = {
	.substreams = 2,
	.channels_min = 2,
	.channels_max = 2,
	.nid = 0x06, /* NID to query formats and rates */
	.ops = {
		.prepare = stac92xx_capture_pcm_prepare,
		.cleanup = stac92xx_capture_pcm_cleanup
	},
};

static int stac92xx_build_pcms(struct hda_codec *codec)
{
	struct sigmatel_spec *spec = codec->spec;
	struct hda_pcm *info = spec->pcm_rec;

	codec->num_pcms = 1;
	codec->pcm_info = info;

	info->name = "STAC92xx Analog";
	info->stream[SNDRV_PCM_STREAM_PLAYBACK] = stac92xx_pcm_analog_playback;
	info->stream[SNDRV_PCM_STREAM_CAPTURE] = stac92xx_pcm_analog_capture;

	if (spec->multiout.dig_out_nid || spec->dig_in_nid) {
		codec->num_pcms++;
		info++;
		info->name = "STAC92xx Digital";
		if (spec->multiout.dig_out_nid) {
			info->stream[SNDRV_PCM_STREAM_PLAYBACK] = stac92xx_pcm_digital_playback;
			info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dig_out_nid;