C++ snd_hda_codec_get_pincfg函数代码示例

/* Check whether the location prefix needs to be added to the label.
 * If all mic-jacks are in the same location (e.g. rear panel), we don't
 * have to put "Front" prefix to each label.  In such a case, returns false.
 */
static int check_mic_location_need(struct hda_codec *codec,
				   const struct auto_pin_cfg *cfg,
				   int input)
{
	unsigned int defc;
	int i, attr, attr2;

	defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[input].pin);
	attr = snd_hda_get_input_pin_attr(defc);
	/* for internal or docking mics, we need locations */
	if (attr <= INPUT_PIN_ATTR_NORMAL)
		return 1;

	attr = 0;
	for (i = 0; i < cfg->num_inputs; i++) {
		defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[i].pin);
		attr2 = snd_hda_get_input_pin_attr(defc);
		if (attr2 >= INPUT_PIN_ATTR_NORMAL) {
			if (attr && attr != attr2)
				return 1; /* different locations found */
			attr = attr2;
		}
	}
	return 0;
}

/**
 * snd_hda_get_pin_label - Get a label for the given I/O pin
 *
 * Get a label for the given pin.  This function works for both input and
 * output pins.  When @cfg is given as non-NULL, the function tries to get
 * an optimized label using hda_get_autocfg_input_label().
 *
 * This function tries to give a unique label string for the pin as much as
 * possible.  For example, when the multiple line-outs are present, it adds
 * the channel suffix like "Front", "Surround", etc (only when @cfg is given).
 * If no unique name with a suffix is available and @indexp is non-NULL, the
 * index number is stored in the pointer.
 */
int snd_hda_get_pin_label(struct hda_codec *codec, hda_nid_t nid,
			  const struct auto_pin_cfg *cfg,
			  char *label, int maxlen, int *indexp)
{
	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
	const char *name = NULL;
	int i;
	bool hdmi;

	if (indexp)
		*indexp = 0;
	if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
		return 0;

	switch (get_defcfg_device(def_conf)) {
	case AC_JACK_LINE_OUT:
		return fill_audio_out_name(codec, nid, cfg, "Line Out",
					   label, maxlen, indexp);
	case AC_JACK_SPEAKER:
		return fill_audio_out_name(codec, nid, cfg, "Speaker",
					   label, maxlen, indexp);
	case AC_JACK_HP_OUT:
		return fill_audio_out_name(codec, nid, cfg, "Headphone",
					   label, maxlen, indexp);
	case AC_JACK_SPDIF_OUT:
	case AC_JACK_DIG_OTHER_OUT:
		hdmi = is_hdmi_cfg(def_conf);
		name = hdmi ? "HDMI" : "SPDIF";
		if (cfg && indexp)
			for (i = 0; i < cfg->dig_outs; i++) {
				hda_nid_t pin = cfg->dig_out_pins[i];
				unsigned int c;
				if (pin == nid)
					break;
				c = snd_hda_codec_get_pincfg(codec, pin);
				if (hdmi == is_hdmi_cfg(c))
					(*indexp)++;
			}
		break;
	default:
		if (cfg) {
			for (i = 0; i < cfg->num_inputs; i++) {
				if (cfg->inputs[i].pin != nid)
					continue;
				name = hda_get_autocfg_input_label(codec, cfg, i);
				if (name)
					break;
			}
		}
		if (!name)
			name = hda_get_input_pin_label(codec, NULL, nid, true);
		break;
	}
	if (!name)
		return 0;
	strlcpy(label, name, maxlen);
	return 1;
}

static int fill_audio_out_name(struct hda_codec *codec, hda_nid_t nid,
			       const struct auto_pin_cfg *cfg,
			       const char *name, char *label, int maxlen,
			       int *indexp)
{
	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
	int attr = snd_hda_get_input_pin_attr(def_conf);
	const char *pfx, *sfx = "";

	/* handle as a speaker if it's a fixed line-out */
	if (!strcmp(name, "Line Out") && attr == INPUT_PIN_ATTR_INT)
		name = "Speaker";
	pfx = check_output_pfx(codec, nid);

	if (cfg) {
		/* try to give a unique suffix if needed */
		sfx = check_output_sfx(nid, cfg->line_out_pins, cfg->line_outs,
				       indexp);
		if (!sfx)
			sfx = check_output_sfx(nid, cfg->speaker_pins, cfg->speaker_outs,
					       indexp);
		if (!sfx) {
			/* don't add channel suffix for Headphone controls */
			int idx = get_hp_label_index(codec, nid, cfg->hp_pins,
						     cfg->hp_outs);
			if (idx >= 0)
				*indexp = idx;
			sfx = "";
		}
	}
	snprintf(label, maxlen, "%s%s%s", pfx, name, sfx);
	return 1;
}

static void parse_hp_out(struct hda_codec *codec)
{
	struct ca0110_spec *spec = codec->spec;
	struct auto_pin_cfg *cfg = &spec->autocfg;
	int i;
	unsigned int def_conf;
	hda_nid_t nid, dac;

	if (!cfg->hp_outs)
		return;
	nid = cfg->hp_pins[0];
	def_conf = snd_hda_codec_get_pincfg(codec, nid);
	if (!def_conf) {
		cfg->hp_outs = 0;
		return;
	}
	if (snd_hda_get_connections(codec, nid, &dac, 1) != 1)
		return;

	for (i = 0; i < cfg->line_outs; i++)
		if (dac == spec->dacs[i])
			break;
	if (i >= cfg->line_outs) {
		spec->hp_dac = dac;
		spec->multiout.hp_nid = dac;
	}
}

static void cs4210_pinmux_init(struct hda_codec *codec)
{
	struct cs_spec *spec = codec->spec;
	unsigned int def_conf, coef;

	/* GPIO, DMIC_SCL, DMIC_SDA and SENSE_B are multiplexed */
	coef = cs_vendor_coef_get(codec, CS421X_IDX_DEV_CFG);

	if (spec->gpio_mask)
		coef |= 0x0008; /* B1,B2 are GPIOs */
	else
		coef &= ~0x0008;

	if (spec->sense_b)
		coef |= 0x0010; /* B2 is SENSE_B, not inverted  */
	else
		coef &= ~0x0010;

	cs_vendor_coef_set(codec, CS421X_IDX_DEV_CFG, coef);

	if ((spec->gpio_mask || spec->sense_b) &&
	    is_active_pin(codec, CS421X_DMIC_PIN_NID)) {

		/*
		    GPIO or SENSE_B forced - disconnect the DMIC pin.
		*/
		def_conf = snd_hda_codec_get_pincfg(codec, CS421X_DMIC_PIN_NID);
		def_conf &= ~AC_DEFCFG_PORT_CONN;
		def_conf |= (AC_JACK_PORT_NONE << AC_DEFCFG_PORT_CONN_SHIFT);
		snd_hda_codec_set_pincfg(codec, CS421X_DMIC_PIN_NID, def_conf);
	}
}

static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
			 const struct auto_pin_cfg *cfg,
			 char *lastname, int *lastidx)
{
	unsigned int def_conf, conn;
	char name[44];
	int idx, err;

	if (!nid)
		return 0;
	if (!is_jack_detectable(codec, nid))
		return 0;
	def_conf = snd_hda_codec_get_pincfg(codec, nid);
	conn = get_defcfg_connect(def_conf);
	if (conn != AC_JACK_PORT_COMPLEX)
		return 0;

	snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), &idx);
	if (!strcmp(name, lastname) && idx == *lastidx)
		idx++;
	strncpy(lastname, name, 44);
	*lastidx = idx;
	err = snd_hda_jack_add_kctl(codec, nid, name, idx);
	if (err < 0)
		return err;
	return snd_hda_jack_detect_enable(codec, nid, 0);
}

static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
			 const struct auto_pin_cfg *cfg,
			 const char *base_name)
{
	unsigned int def_conf, conn;
	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
	int idx, err;
	bool phantom_jack;

	if (!nid)
		return 0;
	def_conf = snd_hda_codec_get_pincfg(codec, nid);
	conn = get_defcfg_connect(def_conf);
	if (conn == AC_JACK_PORT_NONE)
		return 0;
	phantom_jack = (conn != AC_JACK_PORT_COMPLEX) ||
		       !is_jack_detectable(codec, nid);

	if (base_name) {
		strlcpy(name, base_name, sizeof(name));
		idx = 0;
	} else
		snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), &idx);
	if (phantom_jack)
		/* Example final name: "Internal Mic Phantom Jack" */
		strncat(name, " Phantom", sizeof(name) - strlen(name) - 1);
	idx = get_unique_index(codec, name, idx);
	err = __snd_hda_jack_add_kctl(codec, nid, name, idx, phantom_jack);
	if (err < 0)
		return err;

	if (!phantom_jack)
		return snd_hda_jack_detect_enable(codec, nid);
	return 0;
}

static bool can_be_headset_mic(struct hda_codec *codec,
			       struct auto_pin_cfg_item *item,
			       int seq_number)
{
	int attr;
	unsigned int def_conf;
	if (item->type != AUTO_PIN_MIC)
		return false;

	if (item->is_headset_mic || item->is_headphone_mic)
		return false; /* Already assigned */

	def_conf = snd_hda_codec_get_pincfg(codec, item->pin);
	attr = snd_hda_get_input_pin_attr(def_conf);
	if (attr <= INPUT_PIN_ATTR_DOCK)
		return false;

	if (seq_number >= 0) {
		int seq = get_defcfg_sequence(def_conf);
		if (seq != seq_number)
			return false;
	}

	return true;
}

/**
 * snd_hda_get_pin_label - Get a label for the given I/O pin
 *
 * Get a label for the given pin.  This function works for both input and
 * output pins.  When @cfg is given as non-NULL, the function tries to get
 * an optimized label using hda_get_autocfg_input_label().
 *
 * This function tries to give a unique label string for the pin as much as
 * possible.  For example, when the multiple line-outs are present, it adds
 * the channel suffix like "Front", "Surround", etc (only when @cfg is given).
 * If no unique name with a suffix is available and @indexp is non-NULL, the
 * index number is stored in the pointer.
 */
int snd_hda_get_pin_label(struct hda_codec *codec, hda_nid_t nid,
			  const struct auto_pin_cfg *cfg,
			  char *label, int maxlen, int *indexp)
{
	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
	const char *name = NULL;
	int i;

	if (indexp)
		*indexp = 0;
	if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
		return 0;

	switch (get_defcfg_device(def_conf)) {
	case AC_JACK_LINE_OUT:
		return fill_audio_out_name(codec, nid, cfg, "Line Out",
					   label, maxlen, indexp);
	case AC_JACK_SPEAKER:
		return fill_audio_out_name(codec, nid, cfg, "Speaker",
					   label, maxlen, indexp);
	case AC_JACK_HP_OUT:
		return fill_audio_out_name(codec, nid, cfg, "Headphone",
					   label, maxlen, indexp);
	case AC_JACK_SPDIF_OUT:
	case AC_JACK_DIG_OTHER_OUT:
		if (get_defcfg_location(def_conf) == AC_JACK_LOC_HDMI)
			name = "HDMI";
		else
			name = "SPDIF";
		if (cfg && indexp) {
			i = find_idx_in_nid_list(nid, cfg->dig_out_pins,
						 cfg->dig_outs);
			if (i >= 0)
				*indexp = i;
		}
		break;
	default:
		if (cfg) {
			for (i = 0; i < cfg->num_inputs; i++) {
				if (cfg->inputs[i].pin != nid)
					continue;
				name = hda_get_autocfg_input_label(codec, cfg, i);
				if (name)
					break;
			}
		}
		if (!name)
			name = hda_get_input_pin_label(codec, nid, true);
		break;
	}
	if (!name)
		return 0;
	strlcpy(label, name, maxlen);
	return 1;
}

static int is_ext_mic(struct hda_codec *codec, unsigned int idx)
{
	struct cs_spec *spec = codec->spec;
	struct auto_pin_cfg *cfg = &spec->autocfg;
	hda_nid_t pin = cfg->inputs[idx].pin;
	unsigned int val;
	if (!is_jack_detectable(codec, pin))
		return 0;
	val = snd_hda_codec_get_pincfg(codec, pin);
	return (snd_hda_get_input_pin_attr(val) != INPUT_PIN_ATTR_INT);
}

static int is_ext_mic(struct hda_codec *codec, unsigned int idx)
{
	struct cs_spec *spec = codec->spec;
	struct auto_pin_cfg *cfg = &spec->autocfg;
	hda_nid_t pin = cfg->input_pins[idx];
	unsigned int val = snd_hda_query_pin_caps(codec, pin);
	if (!(val & AC_PINCAP_PRES_DETECT))
		return 0;
	val = snd_hda_codec_get_pincfg(codec, pin);
	return (get_defcfg_connect(val) == AC_JACK_PORT_COMPLEX);
}

bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid)
{
    if (codec->no_jack_detect)
        return false;
    if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT))
        return false;
    if (get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) &
            AC_DEFCFG_MISC_NO_PRESENCE)
        return false;
    if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP))
        return false;
    return true;
}

static const char *check_output_pfx(struct hda_codec *codec, hda_nid_t nid)
{
	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
	int attr = snd_hda_get_input_pin_attr(def_conf);

	/* check the location */
	switch (attr) {
	case INPUT_PIN_ATTR_DOCK:
		return "Dock ";
	case INPUT_PIN_ATTR_FRONT:
		return "Front ";
	}
	return "";
}

static const char *hda_get_input_pin_label(struct hda_codec *codec,
					   const struct auto_pin_cfg_item *item,
					   hda_nid_t pin, bool check_location)
{
	unsigned int def_conf;
	static const char * const mic_names[] = {
		"Internal Mic", "Dock Mic", "Mic", "Rear Mic", "Front Mic"
	};
	int attr;

	def_conf = snd_hda_codec_get_pincfg(codec, pin);

	switch (get_defcfg_device(def_conf)) {
	case AC_JACK_MIC_IN:
		if (item && item->is_headset_mic)
			return "Headset Mic";
		if (item && item->is_headphone_mic)
			return "Headphone Mic";
		if (!check_location)
			return "Mic";
		attr = snd_hda_get_input_pin_attr(def_conf);
		if (!attr)
			return "None";
		return mic_names[attr - 1];
	case AC_JACK_LINE_IN:
		if (!check_location)
			return "Line";
		attr = snd_hda_get_input_pin_attr(def_conf);
		if (!attr)
			return "None";
		if (attr == INPUT_PIN_ATTR_DOCK)
			return "Dock Line";
		return "Line";
	case AC_JACK_AUX:
		return "Aux";
	case AC_JACK_CD:
		return "CD";
	case AC_JACK_SPDIF_IN:
		return "SPDIF In";
	case AC_JACK_DIG_OTHER_IN:
		return "Digital In";
	case AC_JACK_HP_OUT:
		return "Headphone Mic";
	default:
		return "Misc";
	}
}

/* guess the jack type from the pin-config */
static int get_input_jack_type(struct hda_codec *codec, hda_nid_t nid)
{
	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
	switch (get_defcfg_device(def_conf)) {
	case AC_JACK_LINE_OUT:
	case AC_JACK_SPEAKER:
		return SND_JACK_LINEOUT;
	case AC_JACK_HP_OUT:
		return SND_JACK_HEADPHONE;
	case AC_JACK_SPDIF_OUT:
	case AC_JACK_DIG_OTHER_OUT:
		return SND_JACK_AVOUT;
	case AC_JACK_MIC_IN:
		return SND_JACK_MICROPHONE;
	default:
		return SND_JACK_LINEIN;
	}
}