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Commit 8e062ec7 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
Browse files

[ALSA] usb-audio - add selector unit names override for Audigy 2 NX 



USB generic driver
Add a mechanism to specify source names of selector units,
and add such names for the SB Audigy 2 NX.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
parent 08fe1589

sound/usb/usbmixer.c

+20 −1
Original line number Diff line number Diff line
@@ -70,6 +70,7 @@ struct usb_mixer_build { 
	DECLARE_BITMAP(unitbitmap, 32*32);

	usb_audio_term_t oterm;

	const struct usbmix_name_map *map;

	const struct usbmix_selector_map *selector_map;

};



struct usb_mixer_elem_info {
@@ -187,6 +188,21 @@ static int check_ignored_ctl(mixer_build_t *state, int unitid, int control) 
	return 0;

}



/* get the mapped selector source name */

static int check_mapped_selector_name(mixer_build_t *state, int unitid,

				      int index, char *buf, int buflen)

{

	const struct usbmix_selector_map *p;



	if (! state->selector_map)

		return 0;

	for (p = state->selector_map; p->id; p++) {

		if (p->id == unitid && index < p->count)

			return strlcpy(buf, p->names[index], buflen);

	}

	return 0;

}



/*

 * find an audio control unit with the given unit id

 */
@@ -1415,7 +1431,9 @@ static int parse_audio_selector_unit(mixer_build_t *state, int unitid, unsigned 
			kfree(cval);

			return -ENOMEM;

		}

		if (check_input_term(state, desc[5 + i], &iterm) >= 0)

		len = check_mapped_selector_name(state, unitid, i, namelist[i],

						 MAX_ITEM_NAME_LEN);

		if (! len && check_input_term(state, desc[5 + i], &iterm) >= 0)

			len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0);

		if (! len)

			sprintf(namelist[i], "Input %d", i);
@@ -1521,6 +1539,7 @@ int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif) 
	for (map = usbmix_ctl_maps; map->vendor; map++) {

		if (map->vendor == state.vendor && map->product == state.product) {

			state.map = map->map;

			state.selector_map = map->selector_map;

			chip->ignore_ctl_error = map->ignore_ctl_error;

			break;

		}

sound/usb/usbmixer_maps.c

+49 −5
Original line number Diff line number Diff line
@@ -26,10 +26,17 @@ struct usbmix_name_map { 
	int control;

};



struct usbmix_selector_map {

	int id;

	int count;

	const char **names;

};



struct usbmix_ctl_map {

	int vendor;

	int product;

	const struct usbmix_name_map *map;

	const struct usbmix_selector_map *selector_map;

	int ignore_ctl_error;

};
@@ -162,6 +169,25 @@ static struct usbmix_name_map audigy2nx_map[] = { 
	{ 0 } /* terminator */

};



static struct usbmix_selector_map audigy2nx_selectors[] = {

	{

		.id = 14, /* Capture Source */

		.count = 3,

		.names = (const char*[]) {"Line", "Digital In", "What-U-Hear"}

	},

	{

		.id = 29, /* Digital Out Source */

		.count = 3,

		.names = (const char*[]) {"Front", "PCM", "Digital In"}

	},

	{

		.id = 31, /* Headphone Source */

		.count = 2,

		.names = (const char*[]) {"Front", "Side"}

	},

	{ 0 } /* terminator */

};



/* LineX FM Transmitter entry - needed to bypass controls bug */

static struct usbmix_name_map linex_map[] = {

	/* 1: IT pcm */
@@ -198,11 +224,29 @@ static struct usbmix_name_map justlink_map[] = { 
 */



static struct usbmix_ctl_map usbmix_ctl_maps[] = {

	{ 0x41e, 0x3000, extigy_map, 1 },

	{ 0x41e, 0x3010, mp3plus_map, 0 },

	{ 0x41e, 0x3020, audigy2nx_map, 0 },

	{ 0x8bb, 0x2702, linex_map, 1 },

	{ 0xc45, 0x1158, justlink_map, 0 },

	{

		.vendor = 0x41e, .product = 0x3000,

		.map = extigy_map,

		.ignore_ctl_error = 1,

	},

	{

		.vendor = 0x41e, .product = 0x3010,

		.map = mp3plus_map,

	},

	{

		.vendor = 0x41e, .product = 0x3020,

		.map = audigy2nx_map,

		.selector_map = audigy2nx_selectors,

	},

	{

		.vendor = 0x8bb, .product = 0x2702,

		.map = linex_map,

		.ignore_ctl_error = 1,

	},

	{

		.vendor = 0xc45, .product = 0x1158,

		.map = justlink_map,

	},

	{ 0 } /* terminator */

};