ALSA: usb-audio: Add Pioneer DJM-450 mixer controls

These values mirror those of the Pioneer DJM-250MK2 as the channel layout
appears identical based on my observations. This duplication could be removed in
later contributions if desired.

Signed-off-by: Sarah Grant <s@srd.tw>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231201181654.5058-1-s@srd.tw
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Author: Sarah Grant

sound/usb/mixer_quirks.c

@@ -2978,6 +2978,7 @@ static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer)
 #define SND_DJM_850_IDX		0x2
 #define SND_DJM_900NXS2_IDX	0x3
 #define SND_DJM_750MK2_IDX	0x4
+#define SND_DJM_450_IDX		0x5
 
 
 #define SND_DJM_CTL(_name, suffix, _default_value, _windex) { \
@@ -3108,6 +3109,31 @@ static const struct snd_djm_ctl snd_djm_ctls_250mk2[] = {
 };
 
 
+// DJM-450
+static const u16 snd_djm_opts_450_cap1[] = {
+	0x0103, 0x0100, 0x0106, 0x0107, 0x0108, 0x0109, 0x010d, 0x010a };
+
+static const u16 snd_djm_opts_450_cap2[] = {
+	0x0203, 0x0200, 0x0206, 0x0207, 0x0208, 0x0209, 0x020d, 0x020a };
+
+static const u16 snd_djm_opts_450_cap3[] = {
+	0x030a, 0x0311, 0x0312, 0x0307, 0x0308, 0x0309, 0x030d };
+
+static const u16 snd_djm_opts_450_pb1[] = { 0x0100, 0x0101, 0x0104 };
+static const u16 snd_djm_opts_450_pb2[] = { 0x0200, 0x0201, 0x0204 };
+static const u16 snd_djm_opts_450_pb3[] = { 0x0300, 0x0301, 0x0304 };
+
+static const struct snd_djm_ctl snd_djm_ctls_450[] = {
+	SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL),
+	SND_DJM_CTL("Ch1 Input",   450_cap1, 2, SND_DJM_WINDEX_CAP),
+	SND_DJM_CTL("Ch2 Input",   450_cap2, 2, SND_DJM_WINDEX_CAP),
+	SND_DJM_CTL("Ch3 Input",   450_cap3, 0, SND_DJM_WINDEX_CAP),
+	SND_DJM_CTL("Ch1 Output",   450_pb1, 0, SND_DJM_WINDEX_PB),
+	SND_DJM_CTL("Ch2 Output",   450_pb2, 1, SND_DJM_WINDEX_PB),
+	SND_DJM_CTL("Ch3 Output",   450_pb3, 2, SND_DJM_WINDEX_PB)
+};
+
+
 // DJM-750
 static const u16 snd_djm_opts_750_cap1[] = {
 	0x0101, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a, 0x010f };
@@ -3203,6 +3229,7 @@ static const struct snd_djm_device snd_djm_devices[] = {
 	[SND_DJM_850_IDX] = SND_DJM_DEVICE(850),
 	[SND_DJM_900NXS2_IDX] = SND_DJM_DEVICE(900nxs2),
 	[SND_DJM_750MK2_IDX] = SND_DJM_DEVICE(750mk2),
+	[SND_DJM_450_IDX] = SND_DJM_DEVICE(450),
 };
 
 
@@ -3454,6 +3481,9 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 	case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */
 		err = snd_djm_controls_create(mixer, SND_DJM_250MK2_IDX);
 		break;
+	case USB_ID(0x2b73, 0x0013): /* Pioneer DJ DJM-450 */
+		err = snd_djm_controls_create(mixer, SND_DJM_450_IDX);
+		break;
 	case USB_ID(0x08e4, 0x017f): /* Pioneer DJ DJM-750 */
 		err = snd_djm_controls_create(mixer, SND_DJM_750_IDX);
 		break;