@@ -179,6 +179,11 @@ static struct usbmix_name_map audigy2nx_map[] = {
{ 0 } /* terminator */
};
+static struct usbmix_name_map mbox1_map[] = {
+ { 1, "Clock" },
+ { 0 } /* terminator */
+};
+
static struct usbmix_selector_map c400_selectors[] = {
{
.id = 0x80,
@@ -416,6 +421,10 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = {
.map = aureon_51_2_map,
},
{
+ .id = USB_ID(0x0dba, 0x1000),
+ .map = mbox1_map,
+ },
+ {
.id = USB_ID(0x13e5, 0x0001),
.map = scratch_live_map,
.ignore_ctl_error = 1,
@@ -565,6 +565,141 @@ static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer)
return 0;
}
+/* Digidesign Mbox 1 clock source switch (internal/spdif) */
+
+static int snd_mbox1_switch_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ if (kctl->private_value) {
+ ucontrol->value.enumerated.item[0] = true;
+ return 0;
+ }
+
+ ucontrol->value.enumerated.item[0] = false;
+ return 0;
+}
+
+static int snd_mbox1_switch_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_usb_audio *chip;
+ struct usb_mixer_interface *mixer;
+ int err;
+ bool changed, cur_val, new_val;
+ bool value;
+ unsigned char buff[3];
+
+ changed = false;
+ value = false;
+
+ cur_val = kctl->private_value;
+ new_val = ucontrol->value.enumerated.item[0];
+
+ mixer = snd_kcontrol_chip(kctl);
+ if (snd_BUG_ON(!mixer))
+ return -EINVAL;
+
+ chip = mixer->chip;
+ if (snd_BUG_ON(!chip))
+ return -EINVAL;
+
+ /* update value if needed */
+ if (cur_val != new_val) {
+ value = new_val;
+ down_read(&chip->shutdown_rwsem);
+ if (chip->shutdown) {
+ err = -ENODEV;
+ } else {
+ /* Prepare for magic command to toggle clock source */
+ err = snd_usb_ctl_msg(chip->dev,
+ usb_rcvctrlpipe(chip->dev, 0), 0x81,
+ USB_DIR_IN |
+ USB_TYPE_CLASS |
+ USB_RECIP_INTERFACE, 0x00, 0x500, buff, 1);
+ if (err < 0)
+ return err;
+ err = snd_usb_ctl_msg(chip->dev,
+ usb_rcvctrlpipe(chip->dev, 0), 0x81,
+ USB_DIR_IN |
+ USB_TYPE_CLASS |
+ USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
+ if (err < 0)
+ return err;
+ /* 2 possibilities: Internal -> send sample rate
+ * S/PDIF sync -> send zeroes
+ * NB: Sample rate locked to 48kHz on purpose to
+ * prevent user from resetting the sample rate
+ * while S/PDIF sync is enabled and confusing
+ * this configuration.
+ */
+ if (new_val == 0) {
+ buff[0] = 0x80;
+ buff[1] = 0xbb;
+ buff[2] = 0x00;
+ } else {
+ buff[0] = buff[1] = buff[2] = 0x00;
+ }
+ /* Send the magic command to toggle the clock source */
+ err = snd_usb_ctl_msg(chip->dev,
+ usb_sndctrlpipe(chip->dev, 0), 0x1,
+ USB_TYPE_CLASS |
+ USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
+ if (err < 0)
+ return err;
+ err = snd_usb_ctl_msg(chip->dev,
+ usb_rcvctrlpipe(chip->dev, 0), 0x81,
+ USB_DIR_IN |
+ USB_TYPE_CLASS |
+ USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
+ if (err < 0)
+ return err;
+ err = snd_usb_ctl_msg(chip->dev,
+ usb_rcvctrlpipe(chip->dev, 0), 0x81,
+ USB_DIR_IN |
+ USB_TYPE_CLASS |
+ USB_RECIP_ENDPOINT, 0x100, 0x2, buff, 3);
+ if (err < 0)
+ return err;
+ }
+ up_read(&chip->shutdown_rwsem);
+ if (err < 0)
+ return err;
+
+ kctl->private_value = new_val;
+ changed = true;
+ }
+
+ return changed;
+}
+
+static int snd_mbox1_switch_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char *const texts[2] = {
+ "Internal",
+ "S/PDIF"
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
+}
+
+static struct snd_kcontrol_new snd_mbox1_switch = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Clock Source",
+ .index = 0,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = snd_mbox1_switch_info,
+ .get = snd_mbox1_switch_get,
+ .put = snd_mbox1_switch_put,
+ .private_value = 0
+};
+
+static int snd_mbox1_create_sync_switch(struct usb_mixer_interface *mixer)
+{
+ return snd_ctl_add(mixer->chip->card,
+ snd_ctl_new1(&snd_mbox1_switch, mixer));
+}
+
/* Native Instruments device quirks */
#define _MAKE_NI_CONTROL(bRequest,wIndex) ((bRequest) << 16 | (wIndex))
@@ -1605,6 +1740,13 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
snd_audigy2nx_proc_read);
break;
+ /* Digidesign Mbox 1 */
+ case USB_ID(0x0dba, 0x1000):
+ err = snd_mbox1_create_sync_switch(mixer);
+ if (err < 0)
+ break;
+ break;
+
/* EMU0204 */
case USB_ID(0x041e, 0x3f19):
err = snd_emu0204_controls_create(mixer);
This patch provides the infrastructure for the Digidesign Mbox 1 to have a mixer control for selecting the clock source. Valid options are Internal and S/PDIF external sync. A non-documented command is sent to the device to enable this feature found by reverse engineering and bus snooping. Signed-off-by: Damien Zammit <damien@zamaudio.com> --- sound/usb/mixer_maps.c | 9 +++ sound/usb/mixer_quirks.c | 142 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 151 insertions(+)