patch_via.c

linux 内核源代码

		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 int via_build_pcms(struct hda_codec *codec)
{
	struct via_spec *spec = codec->spec;
	struct hda_pcm *info = spec->pcm_rec;

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

	info->name = spec->stream_name_analog;
	info->stream[SNDRV_PCM_STREAM_PLAYBACK] = *(spec->stream_analog_playback);
	info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dac_nids[0];
	info->stream[SNDRV_PCM_STREAM_CAPTURE] = *(spec->stream_analog_capture);
	info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adc_nids[0];

	info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max =
		spec->multiout.max_channels;

	if (spec->multiout.dig_out_nid || spec->dig_in_nid) {
		codec->num_pcms++;
		info++;
		info->name = spec->stream_name_digital;
		if (spec->multiout.dig_out_nid) {
			info->stream[SNDRV_PCM_STREAM_PLAYBACK] =
				*(spec->stream_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] =
				*(spec->stream_digital_capture);
			info->stream[SNDRV_PCM_STREAM_CAPTURE].nid =
				spec->dig_in_nid;
		}
	}

	return 0;
}

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

	if (!spec)
		return;

	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 via_init(struct hda_codec *codec)
{
	struct via_spec *spec = codec->spec;
	snd_hda_sequence_write(codec, spec->init_verbs);
 	return 0;
}

#ifdef CONFIG_SND_HDA_POWER_SAVE
static int via_check_power_status(struct hda_codec *codec, hda_nid_t nid)
{
	struct via_spec *spec = codec->spec;
	return snd_hda_check_amp_list_power(codec, &spec->loopback, nid);
}
#endif

/*
 */
static struct hda_codec_ops via_patch_ops = {
	.build_controls = via_build_controls,
	.build_pcms = via_build_pcms,
	.init = via_init,
	.free = via_free,
#ifdef CONFIG_SND_HDA_POWER_SAVE
	.check_power_status = via_check_power_status,
#endif
};

/* fill in the dac_nids table from the parsed pin configuration */
static int vt1708_auto_fill_dac_nids(struct via_spec *spec,
				     const struct auto_pin_cfg *cfg)
{
	int i;
	hda_nid_t nid;

	spec->multiout.num_dacs = cfg->line_outs;

	spec->multiout.dac_nids = spec->private_dac_nids;
 	
	for(i = 0; i < 4; i++) {
		nid = cfg->line_out_pins[i];
		if (nid) {
			/* config dac list */
			switch (i) {
			case AUTO_SEQ_FRONT:
				spec->multiout.dac_nids[i] = 0x10;
				break;
			case AUTO_SEQ_CENLFE:
				spec->multiout.dac_nids[i] = 0x12;
				break;
			case AUTO_SEQ_SURROUND:
				spec->multiout.dac_nids[i] = 0x13;
				break;
			case AUTO_SEQ_SIDE:
				spec->multiout.dac_nids[i] = 0x11;
				break;
			}
		}
	}

	return 0;
}

/* add playback controls from the parsed DAC table */
static int vt1708_auto_create_multi_out_ctls(struct via_spec *spec,
					     const struct auto_pin_cfg *cfg)
{
	char name[32];
	static const char *chname[4] = { "Front", "Surround", "C/LFE", "Side" };
	hda_nid_t nid, nid_vol = 0;
	int i, err;

	for (i = 0; i <= AUTO_SEQ_SIDE; i++) {
		nid = cfg->line_out_pins[i];

		if (!nid)
			continue;
		
		if (i != AUTO_SEQ_FRONT)
			nid_vol = 0x1b - i + 1;

		if (i == AUTO_SEQ_CENLFE) {
			/* Center/LFE */
			err = via_add_control(spec, VIA_CTL_WIDGET_VOL,
					      "Center Playback Volume",
					      HDA_COMPOSE_AMP_VAL(nid_vol, 1, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
			err = via_add_control(spec, VIA_CTL_WIDGET_VOL,
					      "LFE Playback Volume",
					      HDA_COMPOSE_AMP_VAL(nid_vol, 2, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
			err = via_add_control(spec, VIA_CTL_WIDGET_MUTE,
					      "Center Playback Switch",
					      HDA_COMPOSE_AMP_VAL(nid_vol, 1, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
			err = via_add_control(spec, VIA_CTL_WIDGET_MUTE,
					      "LFE Playback Switch",
					      HDA_COMPOSE_AMP_VAL(nid_vol, 2, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
		} else if (i == AUTO_SEQ_FRONT){
			/* add control to mixer index 0 */
			err = via_add_control(spec, VIA_CTL_WIDGET_VOL,
					      "Master Front Playback Volume",
					      HDA_COMPOSE_AMP_VAL(0x17, 3, 0, HDA_INPUT));
			if (err < 0)
				return err;
			err = via_add_control(spec, VIA_CTL_WIDGET_MUTE,
					      "Master Front Playback Switch",
					      HDA_COMPOSE_AMP_VAL(0x17, 3, 0, HDA_INPUT));
			if (err < 0)
				return err;
			
			/* add control to PW3 */
			sprintf(name, "%s Playback Volume", chname[i]);
			err = via_add_control(spec, VIA_CTL_WIDGET_VOL, name,
					      HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
			sprintf(name, "%s Playback Switch", chname[i]);
			err = via_add_control(spec, VIA_CTL_WIDGET_MUTE, name,
					      HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
		} else {
			sprintf(name, "%s Playback Volume", chname[i]);
			err = via_add_control(spec, VIA_CTL_WIDGET_VOL, name,
					      HDA_COMPOSE_AMP_VAL(nid_vol, 3, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
			sprintf(name, "%s Playback Switch", chname[i]);
			err = via_add_control(spec, VIA_CTL_WIDGET_MUTE, name,
					      HDA_COMPOSE_AMP_VAL(nid_vol, 3, 0, HDA_OUTPUT));
			if (err < 0)
				return err;
		}
	}

	return 0;
}

static int vt1708_auto_create_hp_ctls(struct via_spec *spec, hda_nid_t pin)
{
	int err;

	if (!pin)
		return 0;

	spec->multiout.hp_nid = VT1708_HP_NID; /* AOW3 */

	err = via_add_control(spec, VIA_CTL_WIDGET_VOL,
			      "Headphone Playback Volume",
			      HDA_COMPOSE_AMP_VAL(pin, 3, 0, HDA_OUTPUT));
	if (err < 0)
		return err;
	err = via_add_control(spec, VIA_CTL_WIDGET_MUTE,
			      "Headphone Playback Switch",
			      HDA_COMPOSE_AMP_VAL(pin, 3, 0, HDA_OUTPUT));
	if (err < 0)
		return err;

	return 0;
}

/* create playback/capture controls for input pins */
static int vt1708_auto_create_analog_input_ctls(struct via_spec *spec,
						const struct auto_pin_cfg *cfg)
{
	static char *labels[] = {
		"Mic", "Front Mic", "Line", "Front Line", "CD", "Aux", NULL
	};
	struct hda_input_mux *imux = &spec->private_imux;
	int i, err, idx = 0;

	/* for internal loopback recording select */
	imux->items[imux->num_items].label = "Stereo Mixer";
	imux->items[imux->num_items].index = idx;
	imux->num_items++;

	for (i = 0; i < AUTO_PIN_LAST; i++) {
		if (!cfg->input_pins[i])
			continue;

		switch (cfg->input_pins[i]) {
		case 0x1d: /* Mic */
			idx = 2;
			break;
				
		case 0x1e: /* Line In */
			idx = 3;
			break;

		case 0x21: /* Front Mic */
			idx = 4;
			break;

		case 0x24: /* CD */
			idx = 1;
			break;
		}
		err = via_new_analog_input(spec, cfg->input_pins[i], labels[i],
					   idx, 0x17);
		if (err < 0)
			return err;
		imux->items[imux->num_items].label = labels[i];
		imux->items[imux->num_items].index = idx;
		imux->num_items++;
	}
	return 0;
}

#ifdef CONFIG_SND_HDA_POWER_SAVE
static struct hda_amp_list vt1708_loopbacks[] = {
	{ 0x17, HDA_INPUT, 1 },
	{ 0x17, HDA_INPUT, 2 },
	{ 0x17, HDA_INPUT, 3 },
	{ 0x17, HDA_INPUT, 4 },
	{ } /* end */
};
#endif

static int vt1708_parse_auto_config(struct hda_codec *codec)
{
	struct via_spec *spec = codec->spec;
	int err;

	err = snd_hda_parse_pin_def_config(codec, &spec->autocfg, NULL);
	if (err < 0)
		return err;
	err = vt1708_auto_fill_dac_nids(spec, &spec->autocfg);
	if (err < 0)
		return err;
	if (!spec->autocfg.line_outs && !spec->autocfg.hp_pins[0])
		return 0; /* can't find valid BIOS pin config */

	err = vt1708_auto_create_multi_out_ctls(spec, &spec->autocfg);
	if (err < 0)
		return err;
	err = vt1708_auto_create_hp_ctls(spec, spec->autocfg.hp_pins[0]);
	if (err < 0)
		return err;
	err = vt1708_auto_create_analog_input_ctls(spec, &spec->autocfg);
	if (err < 0)
		return err;

	spec->multiout.max_channels = spec->multiout.num_dacs * 2;

	if (spec->autocfg.dig_out_pin)
		spec->multiout.dig_out_nid = VT1708_DIGOUT_NID;
	if (spec->autocfg.dig_in_pin)
		spec->dig_in_nid = VT1708_DIGIN_NID;

	if (spec->kctl_alloc)
		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;

	spec->init_verbs = vt1708_volume_init_verbs;	

	spec->input_mux = &spec->private_imux;

	return 1;
}

/* init callback for auto-configuration model -- overriding the default init */
static int via_auto_init(struct hda_codec *codec)
{
	via_init(codec);
	via_auto_init_multi_out(codec);
	via_auto_init_hp_out(codec);
	via_auto_init_analog_input(codec);
	return 0;
}

static int patch_vt1708(struct hda_codec *codec)
{
	struct via_spec *spec;
	int err;

	/* create a codec specific record */
	spec = kcalloc(1, sizeof(*spec), GFP_KERNEL);
	if (spec == NULL)
		return -ENOMEM;

	codec->spec = spec;

	/* automatic parse from the BIOS config */
	err = vt1708_parse_auto_config(codec);
	if (err < 0) {
		via_free(codec);
		return err;
	} else if (!err) {
		printk(KERN_INFO "hda_codec: Cannot set up configuration "
		       "from BIOS.  Using genenic mode...\n");
	}

	
	spec->stream_name_analog = "VT1708 Analog";
	spec->stream_analog_playback = &vt1708_pcm_analog_playback;
	spec->stream_analog_capture = &vt1708_pcm_analog_capture;

	spec->stream_name_digital = "VT1708 Digital";
	spec->stream_digital_playback = &vt1708_pcm_digital_playback;
	spec->stream_digital_capture = &vt1708_pcm_digital_capture;

	
	if (!spec->adc_nids && spec->input_mux) {
		spec->adc_nids = vt1708_adc_nids;
		spec->num_adc_nids = ARRAY_SIZE(vt1708_adc_nids);
		spec->mixers[spec->num_mixers] = vt1708_capture_mixer;
		spec->num_mixers++;
	}

	codec->patch_ops = via_patch_ops;

	codec->patch_ops.init = via_auto_init;
#ifdef CONFIG_SND_HDA_POWER_SAVE
	spec->loopback.amplist = vt1708_loopbacks;
#endif

	return 0;
}

/* capture mixer elements */
static struct snd_kcontrol_new vt1709_capture_mixer[] = {
	HDA_CODEC_VOLUME("Capture Volume", 0x14, 0x0, HDA_INPUT),
	HDA_CODEC_MUTE("Capture Switch", 0x14, 0x0, HDA_INPUT),
	HDA_CODEC_VOLUME_IDX("Capture Volume", 1, 0x15, 0x0, HDA_INPUT),
	HDA_CODEC_MUTE_IDX("Capture Switch", 1, 0x15, 0x0, HDA_INPUT),
	HDA_CODEC_VOLUME_IDX("Capture Volume", 2, 0x16, 0x0, HDA_INPUT),
	HDA_CODEC_MUTE_IDX("Capture Switch", 2, 0x16, 0x0, HDA_INPUT),
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		/* The multiple "Capture Source" controls confuse alsamixer
		 * So call somewhat different..
		 * FIXME: the controls appear in the "playback" view!
		 */
		/* .name = "Capture Source", */
		.name = "Input Source",
		.count = 1,
		.info = via_mux_enum_info,
		.get = via_mux_enum_get,
		.put = via_mux_enum_put,
	},
	{ } /* end */
};

/*
 * generic initialization of ADC, input mixers and output mixers
 */
static struct hda_verb vt1709_10ch_volume_init_verbs[] = {
	/*
	 * Unmute ADC0-2 and set the default input to mic-in
	 */
	{0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
	{0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
	{0x16, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},


	/* Mute input amps (CD, Line In, Mic 1 & Mic 2) of the analog-loopback
	 * mixer widget
	 */
	/* Amp Indices: AOW0=0, CD = 1, Mic1 = 2, Line = 3, Mic2 = 4 */
	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)}, /* unmute master */
	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)},
	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(3)},
	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)},

	/*
	 * Set up output selector (0x1a, 0x1b, 0x29)
	 */
	/* set vol=0 to output mixers */
	{0x1a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
	{0x1b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
	{0x29, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},

	/*
	 *  Unmute PW3 and PW4
	 */
	{0x1f, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},

	/* Set input of PW4 as AOW4 */
	{0x20, AC_VERB_SET_CONNECT_SEL, 0x1},
	/* Set mic as default input of sw0 */
	{0x19, AC_VERB_SET_CONNECT_SEL, 0x2},
	/* PW9 Output enable */
	{0x24, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x40},
	{ }
};

static struct hda_pcm_stream vt1709_10ch_pcm_analog_playback = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 10,
	.nid = 0x10, /* NID to query formats and rates */
	.ops = {
		.open = via_playback_pcm_open,
		.prepare = via_playback_pcm_prepare,
		.cleanup = via_playback_pcm_cleanup
	},
};

static struct hda_pcm_stream vt1709_6ch_pcm_analog_playback = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 6,
	.nid = 0x10, /* NID to query formats and rates */
	.ops = {