patch_conexant.c

linux 内核源代码

/*
 * HD audio interface patch for Conexant HDA audio codec
 *
 * Copyright (c) 2006 Pototskiy Akex <[e-mail]>
 * 		      Takashi Iwai <[e-mail]>
 * 		      Tobin Davis  <[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 "hda_codec.h"
#include "hda_local.h"

#define CXT_PIN_DIR_IN              0x00
#define CXT_PIN_DIR_OUT             0x01
#define CXT_PIN_DIR_INOUT           0x02
#define CXT_PIN_DIR_IN_NOMICBIAS    0x03
#define CXT_PIN_DIR_INOUT_NOMICBIAS 0x04

#define CONEXANT_HP_EVENT	0x37
#define CONEXANT_MIC_EVENT	0x38



struct conexant_spec {

	struct snd_kcontrol_new *mixers[5];
	int num_mixers;

	const struct hda_verb *init_verbs[5];	/* initialization verbs
						 * don't forget NULL
						 * termination!
						 */
	unsigned int num_init_verbs;

	/* playback */
	struct hda_multi_out multiout;	/* playback set-up
					 * max_channels, dacs must be set
					 * dig_out_nid and hp_nid are optional
					 */
	unsigned int cur_eapd;
	unsigned int hp_present;
	unsigned int need_dac_fix;

	/* capture */
	unsigned int num_adc_nids;
	hda_nid_t *adc_nids;
	hda_nid_t dig_in_nid;		/* digital-in NID; optional */

	/* capture source */
	const struct hda_input_mux *input_mux;
	hda_nid_t *capsrc_nids;
	unsigned int cur_mux[3];

	/* channel model */
	const struct hda_channel_mode *channel_mode;
	int num_channel_mode;

	/* PCM information */
	struct hda_pcm pcm_rec[2];	/* used in build_pcms() */

	struct mutex amp_mutex;	/* PCM volume/mute control mutex */
	unsigned int spdif_route;

	/* dynamic controls, init_verbs and input_mux */
	struct auto_pin_cfg autocfg;
	unsigned int num_kctl_alloc, num_kctl_used;
	struct snd_kcontrol_new *kctl_alloc;
	struct hda_input_mux private_imux;
	hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS];

};

static int conexant_playback_pcm_open(struct hda_pcm_stream *hinfo,
				      struct hda_codec *codec,
				      struct snd_pcm_substream *substream)
{
	struct conexant_spec *spec = codec->spec;
	return snd_hda_multi_out_analog_open(codec, &spec->multiout, substream);
}

static int conexant_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
					 struct hda_codec *codec,
					 unsigned int stream_tag,
					 unsigned int format,
					 struct snd_pcm_substream *substream)
{
	struct conexant_spec *spec = codec->spec;
	return snd_hda_multi_out_analog_prepare(codec, &spec->multiout,
						stream_tag,
						format, substream);
}

static int conexant_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
					 struct hda_codec *codec,
					 struct snd_pcm_substream *substream)
{
	struct conexant_spec *spec = codec->spec;
	return snd_hda_multi_out_analog_cleanup(codec, &spec->multiout);
}

/*
 * Digital out
 */
static int conexant_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
					  struct hda_codec *codec,
					  struct snd_pcm_substream *substream)
{
	struct conexant_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}

static int conexant_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
					 struct hda_codec *codec,
					 struct snd_pcm_substream *substream)
{
	struct conexant_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}

static int conexant_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
					 struct hda_codec *codec,
					 unsigned int stream_tag,
					 unsigned int format,
					 struct snd_pcm_substream *substream)
{
	struct conexant_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
					     stream_tag,
					     format, substream);
}

/*
 * Analog capture
 */
static int conexant_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
				      struct hda_codec *codec,
				      unsigned int stream_tag,
				      unsigned int format,
				      struct snd_pcm_substream *substream)
{
	struct conexant_spec *spec = codec->spec;
	snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number],
				   stream_tag, 0, format);
	return 0;
}

static int conexant_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
				      struct hda_codec *codec,
				      struct snd_pcm_substream *substream)
{
	struct conexant_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 conexant_pcm_analog_playback = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 2,
	.nid = 0, /* fill later */
	.ops = {
		.open = conexant_playback_pcm_open,
		.prepare = conexant_playback_pcm_prepare,
		.cleanup = conexant_playback_pcm_cleanup
	},
};

static struct hda_pcm_stream conexant_pcm_analog_capture = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 2,
	.nid = 0, /* fill later */
	.ops = {
		.prepare = conexant_capture_pcm_prepare,
		.cleanup = conexant_capture_pcm_cleanup
	},
};


static struct hda_pcm_stream conexant_pcm_digital_playback = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 2,
	.nid = 0, /* fill later */
	.ops = {
		.open = conexant_dig_playback_pcm_open,
		.close = conexant_dig_playback_pcm_close,
		.prepare = conexant_dig_playback_pcm_prepare
	},
};

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

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

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

	info->name = "CONEXANT Analog";
	info->stream[SNDRV_PCM_STREAM_PLAYBACK] = conexant_pcm_analog_playback;
	info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max =
		spec->multiout.max_channels;
	info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid =
		spec->multiout.dac_nids[0];
	info->stream[SNDRV_PCM_STREAM_CAPTURE] = conexant_pcm_analog_capture;
	info->stream[SNDRV_PCM_STREAM_CAPTURE].substreams = spec->num_adc_nids;
	info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adc_nids[0];

	if (spec->multiout.dig_out_nid) {
		info++;
		codec->num_pcms++;
		info->name = "Conexant Digital";
		info->stream[SNDRV_PCM_STREAM_PLAYBACK] =
			conexant_pcm_digital_playback;
		info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid =
			spec->multiout.dig_out_nid;
		if (spec->dig_in_nid) {
			info->stream[SNDRV_PCM_STREAM_CAPTURE] =
				conexant_pcm_digital_capture;
			info->stream[SNDRV_PCM_STREAM_CAPTURE].nid =
				spec->dig_in_nid;
		}
	}

	return 0;
}

static int conexant_mux_enum_info(struct snd_kcontrol *kcontrol,
	       			  struct snd_ctl_elem_info *uinfo)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_spec *spec = codec->spec;

	return snd_hda_input_mux_info(spec->input_mux, uinfo);
}

static int conexant_mux_enum_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_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 conexant_mux_enum_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_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->capsrc_nids[adc_idx],
				     &spec->cur_mux[adc_idx]);
}

static int conexant_init(struct hda_codec *codec)
{
	struct conexant_spec *spec = codec->spec;
	int i;

	for (i = 0; i < spec->num_init_verbs; i++)
		snd_hda_sequence_write(codec, spec->init_verbs[i]);
	return 0;
}

static void conexant_free(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        unsigned int i;

        if (spec->kctl_alloc) {
                for (i = 0; i < spec->num_kctl_used; i++)
                        kfree(spec->kctl_alloc[i].name);
                kfree(spec->kctl_alloc);
        }

	kfree(codec->spec);
}

static int conexant_build_controls(struct hda_codec *codec)
{
	struct conexant_spec *spec = codec->spec;
	unsigned int i;
	int 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->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;
}

static struct hda_codec_ops conexant_patch_ops = {
	.build_controls = conexant_build_controls,
	.build_pcms = conexant_build_pcms,
	.init = conexant_init,
	.free = conexant_free,
};

/*
 * EAPD control
 * the private value = nid | (invert << 8)
 */

#define cxt_eapd_info		snd_ctl_boolean_mono_info

static int cxt_eapd_get(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_spec *spec = codec->spec;
	int invert = (kcontrol->private_value >> 8) & 1;
	if (invert)
		ucontrol->value.integer.value[0] = !spec->cur_eapd;
	else
		ucontrol->value.integer.value[0] = spec->cur_eapd;
	return 0;

}

static int cxt_eapd_put(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_spec *spec = codec->spec;
	int invert = (kcontrol->private_value >> 8) & 1;
	hda_nid_t nid = kcontrol->private_value & 0xff;
	unsigned int eapd;

	eapd = ucontrol->value.integer.value[0];
	if (invert)
		eapd = !eapd;
	if (eapd == spec->cur_eapd)
		return 0;
	
	spec->cur_eapd = eapd;
	snd_hda_codec_write_cache(codec, nid,
				  0, AC_VERB_SET_EAPD_BTLENABLE,
				  eapd ? 0x02 : 0x00);
	return 1;
}

/* controls for test mode */
#ifdef CONFIG_SND_DEBUG

#define CXT_EAPD_SWITCH(xname, nid, mask) \
	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0,  \
	  .info = cxt_eapd_info, \
	  .get = cxt_eapd_get, \
	  .put = cxt_eapd_put, \
	  .private_value = nid | (mask<<16) }



static int conexant_ch_mode_info(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_info *uinfo)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_spec *spec = codec->spec;
	return snd_hda_ch_mode_info(codec, uinfo, spec->channel_mode,
				    spec->num_channel_mode);
}

static int conexant_ch_mode_get(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_spec *spec = codec->spec;
	return snd_hda_ch_mode_get(codec, ucontrol, spec->channel_mode,
				   spec->num_channel_mode,
				   spec->multiout.max_channels);
}

static int conexant_ch_mode_put(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct conexant_spec *spec = codec->spec;
	int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
				      spec->num_channel_mode,
				      &spec->multiout.max_channels);
	if (err >= 0 && spec->need_dac_fix)
		spec->multiout.num_dacs = spec->multiout.max_channels / 2;
	return err;
}

#define CXT_PIN_MODE(xname, nid, dir) \
	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0,  \
	  .info = conexant_ch_mode_info, \
	  .get = conexant_ch_mode_get, \
	  .put = conexant_ch_mode_put, \
	  .private_value = nid | (dir<<16) }

#endif /* CONFIG_SND_DEBUG */

/* Conexant 5045 specific */

static hda_nid_t cxt5045_dac_nids[1] = { 0x19 };
static hda_nid_t cxt5045_adc_nids[1] = { 0x1a };