[PATCH v2 2/4] ASLA: usb-audio: Declare Pioneer DJM-850 mixer controls

[Nicolas MURE <nicolas.mure2019@gmail.com>]

Declare audio capture controls to choose the audio source, and also to
set the capture level (in dB).

See https://github.com/nm2107/Pioneer-DJM-850-driver-reverse-engineering/blob/172fb9a61055960c88c67b7c416fe5bf3609807b/doc/windows-djm-850-setting-utility/mixer-output-tab/README.md

Signed-off-by: Nicolas MURE <nicolas.mure2019@gmail.com>
---
 sound/usb/mixer_quirks.c | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 08873d2afe4d..b325b6597d91 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2649,9 +2649,11 @@ static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer)
 #define SND_DJM_DEVICE_SHIFT	24
 
 // device table index
+// used for the snd_djm_devices table, so please update accordingly
 #define SND_DJM_250MK2_IDX	0x0
 #define SND_DJM_750_IDX		0x1
-#define SND_DJM_900NXS2_IDX	0x2
+#define SND_DJM_850_IDX		0x2
+#define SND_DJM_900NXS2_IDX	0x3
 
 
 #define SND_DJM_CTL(_name, suffix, _default_value, _windex) { \
@@ -2733,11 +2735,12 @@ static const char *snd_djm_get_label(u16 wvalue, u16 windex)
 	}
 };
 
-
-// DJM-250MK2
+// common DJM capture level option values
 static const u16 snd_djm_opts_cap_level[] = {
 	0x0000, 0x0100, 0x0200, 0x0300 };
 
+
+// DJM-250MK2
 static const u16 snd_djm_opts_250mk2_cap1[] = {
 	0x0103, 0x0100, 0x0106, 0x0107, 0x0108, 0x0109, 0x010d, 0x010a };
 
@@ -2781,6 +2784,25 @@ static const struct snd_djm_ctl snd_djm_ctls_750[] = {
 };
 
 
+// DJM-850
+static const u16 snd_djm_opts_850_cap1[] = {
+	0x0100, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a, 0x010f };
+static const u16 snd_djm_opts_850_cap2[] = {
+	0x0200, 0x0201, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a, 0x020f };
+static const u16 snd_djm_opts_850_cap3[] = {
+	0x0300, 0x0301, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a, 0x030f };
+static const u16 snd_djm_opts_850_cap4[] = {
+	0x0400, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a, 0x040f };
+
+static const struct snd_djm_ctl snd_djm_ctls_850[] = {
+	SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL),
+	SND_DJM_CTL("Ch1 Input",   850_cap1, 1, SND_DJM_WINDEX_CAP),
+	SND_DJM_CTL("Ch2 Input",   850_cap2, 0, SND_DJM_WINDEX_CAP),
+	SND_DJM_CTL("Ch3 Input",   850_cap3, 0, SND_DJM_WINDEX_CAP),
+	SND_DJM_CTL("Ch4 Input",   850_cap4, 1, SND_DJM_WINDEX_CAP)
+};
+
+
 // DJM-900NXS2
 static const u16 snd_djm_opts_900nxs2_cap1[] = {
 	0x0100, 0x0102, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a };
@@ -2806,6 +2828,7 @@ static const struct snd_djm_ctl snd_djm_ctls_900nxs2[] = {
 static const struct snd_djm_device snd_djm_devices[] = {
 	SND_DJM_DEVICE(250mk2),
 	SND_DJM_DEVICE(750),
+	SND_DJM_DEVICE(850),
 	SND_DJM_DEVICE(900nxs2)
 };
 
@@ -3045,6 +3068,9 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 	case USB_ID(0x08e4, 0x017f): /* Pioneer DJ DJM-750 */
 		err = snd_djm_controls_create(mixer, SND_DJM_750_IDX);
 		break;
+	case USB_ID(0x08e4, 0x0163): /* Pioneer DJ DJM-850 */
+		err = snd_djm_controls_create(mixer, SND_DJM_850_IDX);
+		break;
 	case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */
 		err = snd_djm_controls_create(mixer, SND_DJM_900NXS2_IDX);
 		break;
-- 
2.29.2