[PATCH] ALSA: usb-audio: Add mixer support for Pioneer DJ DJM-250MK2
František Kučera
konference at frantovo.cz
Mon Sep 21 18:16:12 CEST 2020
From: František Kučera <franta-linux at frantovo.cz>
This patch extends support for DJM-250MK2 and allows mapping
playback and capture channels to available sources.
Configures the card through USB commands.
---
sound/usb/mixer_quirks.c | 194 +++++++++++++++++++++++++++++++++++++++
1 file changed, 194 insertions(+)
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 199cdbfdc761..f2aeb5ac3611 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2602,6 +2602,197 @@ static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer)
return 0;
}
+/*
+ * Pioneer DJ DJM-250MK2 and maybe other DJM models
+ *
+ * For playback, no duplicate mapping should be set.
+ * There are three mixer stereo channels (CH1, CH2, AUX) and three stereo sources (PLAYBACK 1-2, PLAYBACK 3-4, PLAYBACK 5-6).
+ * Each channel should be mapped just once to one source.
+ * If mapped multiple times, only one source will play on given channel (sources are not mixed together).
+ *
+ * For recording, duplicate mapping is OK. We will get the same signal multiple times.
+ *
+ * Channels 7-8 are in both directions fixed to FX SEND / FX RETURN.
+ *
+ * See also notes in the quirks-table.h file.
+ */
+
+typedef struct {
+ const u16 wIndex;
+ const u16 wValue;
+ const char *name;
+} snd_pioneer_djm_option;
+
+static const snd_pioneer_djm_option SND_PIONEER_DJM_OPTIONS_CAPTURE_LEVEL[] = {
+ { .name = "-5 dB", .wValue = 0x0300, .wIndex = 0x8003 },
+ { .name = "-10 dB", .wValue = 0x0200, .wIndex = 0x8003 },
+ { .name = "-15 dB", .wValue = 0x0100, .wIndex = 0x8003 },
+ { .name = "-19 dB", .wValue = 0x0000, .wIndex = 0x8003 }
+};
+
+static const snd_pioneer_djm_option SND_PIONEER_DJM_OPTIONS_CAPTURE_CH12[] = {
+ { .name = "CH1 Control Tone PHONO", .wValue = 0x0103, .wIndex = 0x8002 },
+ { .name = "CH1 Control Tone LINE", .wValue = 0x0100, .wIndex = 0x8002 },
+ { .name = "Post CH1 Fader", .wValue = 0x0106, .wIndex = 0x8002 },
+ { .name = "Cross Fader A", .wValue = 0x0107, .wIndex = 0x8002 },
+ { .name = "Cross Fader B", .wValue = 0x0108, .wIndex = 0x8002 },
+ { .name = "MIC", .wValue = 0x0109, .wIndex = 0x8002 },
+ { .name = "AUX", .wValue = 0x010d, .wIndex = 0x8002 },
+ { .name = "REC OUT", .wValue = 0x010a, .wIndex = 0x8002 }
+};
+
+static const snd_pioneer_djm_option SND_PIONEER_DJM_OPTIONS_CAPTURE_CH34[] = {
+ { .name = "CH2 Control Tone PHONO", .wValue = 0x0203, .wIndex = 0x8002 },
+ { .name = "CH2 Control Tone LINE", .wValue = 0x0200, .wIndex = 0x8002 },
+ { .name = "Post CH2 Fader", .wValue = 0x0206, .wIndex = 0x8002 },
+ { .name = "Cross Fader A", .wValue = 0x0207, .wIndex = 0x8002 },
+ { .name = "Cross Fader B", .wValue = 0x0208, .wIndex = 0x8002 },
+ { .name = "MIC", .wValue = 0x0209, .wIndex = 0x8002 },
+ { .name = "AUX", .wValue = 0x020d, .wIndex = 0x8002 },
+ { .name = "REC OUT", .wValue = 0x020a, .wIndex = 0x8002 }
+};
+
+static const snd_pioneer_djm_option SND_PIONEER_DJM_OPTIONS_CAPTURE_CH56[] = {
+ { .name = "REC OUT", .wValue = 0x030a, .wIndex = 0x8002 },
+ { .name = "Post CH1 Fader", .wValue = 0x0311, .wIndex = 0x8002 },
+ { .name = "Post CH2 Fader", .wValue = 0x0312, .wIndex = 0x8002 },
+ { .name = "Cross Fader A", .wValue = 0x0307, .wIndex = 0x8002 },
+ { .name = "Cross Fader B", .wValue = 0x0308, .wIndex = 0x8002 },
+ { .name = "MIC", .wValue = 0x0309, .wIndex = 0x8002 },
+ { .name = "AUX", .wValue = 0x030d, .wIndex = 0x8002 }
+};
+
+static const snd_pioneer_djm_option SND_PIONEER_DJM_OPTIONS_PLAYBACK_12[] = {
+ { .name = "CH1", .wValue = 0x0100, .wIndex = 0x8016 },
+ { .name = "CH2", .wValue = 0x0101, .wIndex = 0x8016 },
+ { .name = "AUX", .wValue = 0x0104, .wIndex = 0x8016 }
+};
+
+static const snd_pioneer_djm_option SND_PIONEER_DJM_OPTIONS_PLAYBACK_34[] = {
+ { .name = "CH1", .wValue = 0x0200, .wIndex = 0x8016 },
+ { .name = "CH2", .wValue = 0x0201, .wIndex = 0x8016 },
+ { .name = "AUX", .wValue = 0x0204, .wIndex = 0x8016 }
+};
+
+static const snd_pioneer_djm_option SND_PIONEER_DJM_OPTIONS_PLAYBACK_56[] = {
+ { .name = "CH1", .wValue = 0x0300, .wIndex = 0x8016 },
+ { .name = "CH2", .wValue = 0x0301, .wIndex = 0x8016 },
+ { .name = "AUX", .wValue = 0x0304, .wIndex = 0x8016 }
+};
+
+typedef struct {
+ const char *name;
+ const snd_pioneer_djm_option *options;
+ const size_t count;
+ const u16 default_value;
+} snd_pioneer_djm_option_group;
+
+#define SND_PIONEER_DJM_OPTION_GROUP_ITEM(_name, suffix, _default_value) \
+ { .name = _name, .options = SND_PIONEER_DJM_OPTIONS_##suffix, .count = ARRAY_SIZE(SND_PIONEER_DJM_OPTIONS_##suffix), .default_value = _default_value }
+
+static const snd_pioneer_djm_option_group SND_PIONEER_DJM_OPTION_GROUPS[] = {
+ SND_PIONEER_DJM_OPTION_GROUP_ITEM("Master Capture Level Capture Switch", CAPTURE_LEVEL, 0),
+ SND_PIONEER_DJM_OPTION_GROUP_ITEM("Capture 1-2 Capture Switch", CAPTURE_CH12, 2),
+ SND_PIONEER_DJM_OPTION_GROUP_ITEM("Capture 3-4 Capture Switch", CAPTURE_CH34, 2),
+ SND_PIONEER_DJM_OPTION_GROUP_ITEM("Capture 5-6 Capture Switch", CAPTURE_CH56, 0),
+ SND_PIONEER_DJM_OPTION_GROUP_ITEM("Playback 1-2 Playback Switch", PLAYBACK_12, 0),
+ SND_PIONEER_DJM_OPTION_GROUP_ITEM("Playback 3-4 Playback Switch", PLAYBACK_34, 1),
+ SND_PIONEER_DJM_OPTION_GROUP_ITEM("Playback 5-6 Playback Switch", PLAYBACK_56, 2)
+};
+
+// layout of the kcontrol->private_value:
+#define SND_PIONEER_DJM_VALUE_MASK 0x0000ffff
+#define SND_PIONEER_DJM_GROUP_MASK 0xffff0000
+#define SND_PIONEER_DJM_GROUP_SHIFT 16
+
+static int snd_pioneer_djm_controls_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *info)
+{
+ u16 group = kcontrol->private_value >> SND_PIONEER_DJM_GROUP_SHIFT;
+ size_t count;
+ const char *name;
+ if (group < ARRAY_SIZE(SND_PIONEER_DJM_OPTION_GROUPS)) {
+ count = SND_PIONEER_DJM_OPTION_GROUPS[group].count;
+ if (info->value.enumerated.item >= count) info->value.enumerated.item = count - 1;
+ name = SND_PIONEER_DJM_OPTION_GROUPS[group].options[info->value.enumerated.item].name;
+ strlcpy(info->value.enumerated.name, name, sizeof (info->value.enumerated.name));
+ info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ info->count = 1;
+ info->value.enumerated.items = count;
+ return 0;
+ } else {
+ return -EINVAL;
+ }
+}
+
+static int snd_pioneer_djm_controls_update(struct usb_mixer_interface *mixer, u16 group, u16 value)
+{
+ int err;
+ if (group < ARRAY_SIZE(SND_PIONEER_DJM_OPTION_GROUPS) && value < SND_PIONEER_DJM_OPTION_GROUPS[group].count) {
+ err = snd_usb_lock_shutdown(mixer->chip);
+ if (err) return err;
+
+ err = snd_usb_ctl_msg(
+ mixer->chip->dev, usb_sndctrlpipe(mixer->chip->dev, 0),
+ USB_REQ_SET_FEATURE,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ SND_PIONEER_DJM_OPTION_GROUPS[group].options[value].wValue,
+ SND_PIONEER_DJM_OPTION_GROUPS[group].options[value].wIndex,
+ NULL, 0);
+
+ snd_usb_unlock_shutdown(mixer->chip);
+ return err;
+ } else {
+ return -EINVAL;
+ }
+}
+
+static int snd_pioneer_djm_controls_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.enumerated.item[0] = kcontrol->private_value & SND_PIONEER_DJM_VALUE_MASK;
+ return 0;
+}
+
+static int snd_pioneer_djm_controls_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
+ struct usb_mixer_interface *mixer = list->mixer;
+
+ u16 group = (kcontrol->private_value & SND_PIONEER_DJM_GROUP_MASK) >> SND_PIONEER_DJM_GROUP_SHIFT;
+ u16 value = ucontrol->value.enumerated.item[0];
+ kcontrol->private_value = group << SND_PIONEER_DJM_GROUP_SHIFT | value;
+
+ return snd_pioneer_djm_controls_update(mixer, group, value);
+}
+
+static int snd_pioneer_djm_controls_resume(struct usb_mixer_elem_list *list)
+{
+ u16 group = (list->kctl->private_value & SND_PIONEER_DJM_GROUP_MASK) >> SND_PIONEER_DJM_GROUP_SHIFT;
+ u16 value = (list->kctl->private_value & SND_PIONEER_DJM_VALUE_MASK);
+ return snd_pioneer_djm_controls_update(list->mixer, group, value);
+}
+
+static int snd_pioneer_djm_controls_create(struct usb_mixer_interface *mixer)
+{
+ int err, group;
+ for (group = 0; group < ARRAY_SIZE(SND_PIONEER_DJM_OPTION_GROUPS); group++ ) {
+ struct snd_kcontrol_new knew = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .index = 0,
+ .info = snd_pioneer_djm_controls_info,
+ .get = snd_pioneer_djm_controls_get,
+ .put = snd_pioneer_djm_controls_put,
+ .name = SND_PIONEER_DJM_OPTION_GROUPS[group].name,
+ .private_value = group << SND_PIONEER_DJM_GROUP_SHIFT | SND_PIONEER_DJM_OPTION_GROUPS[group].default_value
+ };
+ err = snd_pioneer_djm_controls_update(mixer, group, SND_PIONEER_DJM_OPTION_GROUPS[group].default_value);
+ if (err) return err;
+ err = add_single_ctl_with_resume(mixer, 0, snd_pioneer_djm_controls_resume, &knew, NULL);
+ if (err) return err;
+ }
+ return 0;
+}
+
int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
{
int err = 0;
@@ -2706,6 +2897,9 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
case USB_ID(0x2a39, 0x3fb0): /* RME Babyface Pro FS */
err = snd_bbfpro_controls_create(mixer);
break;
+ case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */
+ err = snd_pioneer_djm_controls_create(mixer);
+ break;
}
return err;
--
2.20.1
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