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Commit 50a9f790 authored by Matthew Ranostay's avatar Matthew Ranostay Committed by Takashi Iwai
Browse files

ALSA: hda: add snd_hda_get_jack* functions 



This patch adds snd_hda_get_jack* functions for reporting jack location,
device, and connectivity type.

Signed-off-by: default avatarMatthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 282cd76f

sound/pci/hda/hda_codec.c

+46 −0
Original line number Diff line number Diff line
@@ -107,6 +107,52 @@ static void hda_keep_power_on(struct hda_codec *codec); 
static inline void hda_keep_power_on(struct hda_codec *codec) {}

#endif



const char *snd_hda_get_jack_location(u32 cfg)

{

	static char *bases[7] = {

		"N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom",

	};

	static unsigned char specials_idx[] = {

		0x07, 0x08,

		0x17, 0x18, 0x19,

		0x37, 0x38

	};

	static char *specials[] = {

		"Rear Panel", "Drive Bar",

		"Riser", "HDMI", "ATAPI",

		"Mobile-In", "Mobile-Out"

	};

	int i;

	cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT;

	if ((cfg & 0x0f) < 7)

		return bases[cfg & 0x0f];

	for (i = 0; i < ARRAY_SIZE(specials_idx); i++) {

		if (cfg == specials_idx[i])

			return specials[i];

	}

	return "UNKNOWN";

}



const char *snd_hda_get_jack_connectivity(u32 cfg)

{

	static char *jack_locations[4] = { "Ext", "Int", "Sep", "Oth" };



	return jack_locations[(cfg >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3];

}



const char *snd_hda_get_jack_type(u32 cfg)

{

	static char *jack_types[16] = {

		"Line Out", "Speaker", "HP Out", "CD",

		"SPDIF Out", "Digital Out", "Modem Line", "Modem Hand",

		"Line In", "Aux", "Mic", "Telephony",

		"SPDIF In", "Digitial In", "Reserved", "Other"

	};



	return jack_types[(cfg & AC_DEFCFG_DEVICE)

				>> AC_DEFCFG_DEVICE_SHIFT];

}



/**

 * snd_hda_codec_read - send a command and get the response

 * @codec: the HDA codec

sound/pci/hda/hda_codec.h

+7 −0
Original line number Diff line number Diff line
@@ -859,6 +859,13 @@ int snd_hda_suspend(struct hda_bus *bus, pm_message_t state); 
int snd_hda_resume(struct hda_bus *bus);

#endif



/*

 * get widget information

 */

const char *snd_hda_get_jack_connectivity(u32 cfg);

const char *snd_hda_get_jack_type(u32 cfg);

const char *snd_hda_get_jack_location(u32 cfg);



/*

 * power saving

 */

sound/pci/hda/hda_proc.c

+3 −36
Original line number Diff line number Diff line
@@ -145,32 +145,6 @@ static void print_pcm_caps(struct snd_info_buffer *buffer, 
	print_pcm_formats(buffer, stream);

}



static const char *get_jack_location(u32 cfg)

{

	static char *bases[7] = {

		"N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom",

	};

	static unsigned char specials_idx[] = {

		0x07, 0x08,

		0x17, 0x18, 0x19,

		0x37, 0x38

	};

	static char *specials[] = {

		"Rear Panel", "Drive Bar",

		"Riser", "HDMI", "ATAPI",

		"Mobile-In", "Mobile-Out"

	};

	int i;

	cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT;

	if ((cfg & 0x0f) < 7)

		return bases[cfg & 0x0f];

	for (i = 0; i < ARRAY_SIZE(specials_idx); i++) {

		if (cfg == specials_idx[i])

			return specials[i];

	}

	return "UNKNOWN";

}



static const char *get_jack_connection(u32 cfg)

{

	static char *names[16] = {
@@ -206,13 +180,6 @@ static void print_pin_caps(struct snd_info_buffer *buffer, 
			   int *supports_vref)

{

	static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };

	static char *jack_types[16] = {

		"Line Out", "Speaker", "HP Out", "CD",

		"SPDIF Out", "Digital Out", "Modem Line", "Modem Hand",

		"Line In", "Aux", "Mic", "Telephony",

		"SPDIF In", "Digitial In", "Reserved", "Other"

	};

	static char *jack_locations[4] = { "Ext", "Int", "Sep", "Oth" };

	unsigned int caps, val;



	caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
@@ -274,9 +241,9 @@ static void print_pin_caps(struct snd_info_buffer *buffer, 
	caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);

	snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,

		    jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],

		    jack_types[(caps & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT],

		    jack_locations[(caps >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3],

		    get_jack_location(caps));

		    snd_hda_get_jack_type(caps),

		    snd_hda_get_jack_connectivity(caps),

		    snd_hda_get_jack_location(caps));

	snd_iprintf(buffer, "    Conn = %s, Color = %s\n",

		    get_jack_connection(caps),

		    get_jack_color(caps));