&snd_xonar_u1_output_switch, NULL);
}
+/* Digidesign Mbox 1 helper functions */
+
+static int snd_mbox1_is_spdif_synced(struct snd_usb_audio *chip)
+{
+ unsigned char buff[3];
+ int err;
+ int is_spdif_synced;
+
+ /* Read clock source */
+ 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;
+
+ /* spdif sync: buff is all zeroes */
+ is_spdif_synced = !(buff[0] | buff[1] | buff[2]);
+ return is_spdif_synced;
+}
+
+static int snd_mbox1_set_clk_source(struct snd_usb_audio *chip, int rate_or_zero)
+{
+ /* 2 possibilities: Internal -> expects sample rate
+ * S/PDIF sync -> expects rate = 0
+ */
+ unsigned char buff[3];
+
+ buff[0] = (rate_or_zero >> 0) & 0xff;
+ buff[1] = (rate_or_zero >> 8) & 0xff;
+ buff[2] = (rate_or_zero >> 16) & 0xff;
+
+ /* Set clock source */
+ return snd_usb_ctl_msg(chip->dev,
+ usb_sndctrlpipe(chip->dev, 0), 0x1,
+ USB_TYPE_CLASS |
+ USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
+}
+
+static int snd_mbox1_is_spdif_input(struct snd_usb_audio *chip)
+{
+ /* Hardware gives 2 possibilities: ANALOG Source -> 0x01
+ * S/PDIF Source -> 0x02
+ */
+ int err;
+ unsigned char source[1];
+
+ /* Read input 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, source, 1);
+ if (err < 0)
+ return err;
+
+ return (source[0] == 2);
+}
+
+static int snd_mbox1_set_input_source(struct snd_usb_audio *chip, int is_spdif)
+{
+ /* NB: Setting the input source to S/PDIF resets the clock source to S/PDIF
+ * Hardware expects 2 possibilities: ANALOG Source -> 0x01
+ * S/PDIF Source -> 0x02
+ */
+ unsigned char buff[1];
+
+ buff[0] = (is_spdif & 1) + 1;
+
+ /* Set input source */
+ return snd_usb_ctl_msg(chip->dev,
+ usb_sndctrlpipe(chip->dev, 0), 0x1,
+ USB_TYPE_CLASS |
+ USB_RECIP_INTERFACE, 0x00, 0x500, buff, 1);
+}
+
/* Digidesign Mbox 1 clock source switch (internal/spdif) */
-static int snd_mbox1_switch_get(struct snd_kcontrol *kctl,
- struct snd_ctl_elem_value *ucontrol)
+static int snd_mbox1_clk_switch_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
{
+ struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
+ struct snd_usb_audio *chip = list->mixer->chip;
+ int err;
+
+ err = snd_usb_lock_shutdown(chip);
+ if (err < 0)
+ goto err;
+
+ err = snd_mbox1_is_spdif_synced(chip);
+ if (err < 0)
+ goto err;
+
+ kctl->private_value = err;
+ err = 0;
ucontrol->value.enumerated.item[0] = kctl->private_value;
- return 0;
+err:
+ snd_usb_unlock_shutdown(chip);
+ return err;
}
-static int snd_mbox1_switch_update(struct usb_mixer_interface *mixer, int val)
+static int snd_mbox1_clk_switch_update(struct usb_mixer_interface *mixer, int is_spdif_sync)
{
struct snd_usb_audio *chip = mixer->chip;
int err;
- unsigned char buff[3];
err = snd_usb_lock_shutdown(chip);
if (err < 0)
return err;
- /* 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);
+ err = snd_mbox1_is_spdif_input(chip);
if (err < 0)
goto 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);
+
+ err = snd_mbox1_is_spdif_synced(chip);
if (err < 0)
goto 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 (val == 0) {
- buff[0] = 0x80;
- buff[1] = 0xbb;
- buff[2] = 0x00;
- } else {
- buff[0] = buff[1] = buff[2] = 0x00;
- }
+ /* FIXME: hardcoded sample rate */
+ err = snd_mbox1_set_clk_source(chip, is_spdif_sync ? 0 : 48000);
+ if (err < 0)
+ goto err;
- /* 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);
+ err = snd_mbox1_is_spdif_synced(chip);
+err:
+ snd_usb_unlock_shutdown(chip);
+ return err;
+}
+
+static int snd_mbox1_clk_switch_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
+ struct usb_mixer_interface *mixer = list->mixer;
+ int err;
+ bool cur_val, new_val;
+
+ cur_val = kctl->private_value;
+ new_val = ucontrol->value.enumerated.item[0];
+ if (cur_val == new_val)
+ return 0;
+
+ kctl->private_value = new_val;
+ err = snd_mbox1_clk_switch_update(mixer, new_val);
+ return err < 0 ? err : 1;
+}
+
+static int snd_mbox1_clk_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 int snd_mbox1_clk_switch_resume(struct usb_mixer_elem_list *list)
+{
+ return snd_mbox1_clk_switch_update(list->mixer, list->kctl->private_value);
+}
+
+/* Digidesign Mbox 1 input source switch (analog/spdif) */
+
+static int snd_mbox1_src_switch_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.enumerated.item[0] = kctl->private_value;
+ return 0;
+}
+
+static int snd_mbox1_src_switch_update(struct usb_mixer_interface *mixer, int is_spdif_input)
+{
+ struct snd_usb_audio *chip = mixer->chip;
+ int err;
+
+ err = snd_usb_lock_shutdown(chip);
+ if (err < 0)
+ return err;
+
+ err = snd_mbox1_is_spdif_input(chip);
if (err < 0)
goto 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);
+
+ err = snd_mbox1_set_input_source(chip, is_spdif_input);
if (err < 0)
goto 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);
+
+ err = snd_mbox1_is_spdif_input(chip);
if (err < 0)
goto err;
+ err = snd_mbox1_is_spdif_synced(chip);
err:
snd_usb_unlock_shutdown(chip);
return err;
}
-static int snd_mbox1_switch_put(struct snd_kcontrol *kctl,
- struct snd_ctl_elem_value *ucontrol)
+static int snd_mbox1_src_switch_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
struct usb_mixer_interface *mixer = list->mixer;
return 0;
kctl->private_value = new_val;
- err = snd_mbox1_switch_update(mixer, new_val);
+ err = snd_mbox1_src_switch_update(mixer, new_val);
return err < 0 ? err : 1;
}
-static int snd_mbox1_switch_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
+static int snd_mbox1_src_switch_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
{
static const char *const texts[2] = {
- "Internal",
+ "Analog",
"S/PDIF"
};
return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
}
-static int snd_mbox1_switch_resume(struct usb_mixer_elem_list *list)
+static int snd_mbox1_src_switch_resume(struct usb_mixer_elem_list *list)
{
- return snd_mbox1_switch_update(list->mixer, list->kctl->private_value);
+ return snd_mbox1_src_switch_update(list->mixer, list->kctl->private_value);
}
-static const struct snd_kcontrol_new snd_mbox1_switch = {
+static const struct snd_kcontrol_new snd_mbox1_clk_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,
+ .info = snd_mbox1_clk_switch_info,
+ .get = snd_mbox1_clk_switch_get,
+ .put = snd_mbox1_clk_switch_put,
+ .private_value = 0
+};
+
+static const struct snd_kcontrol_new snd_mbox1_src_switch = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Input Source",
+ .index = 1,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = snd_mbox1_src_switch_info,
+ .get = snd_mbox1_src_switch_get,
+ .put = snd_mbox1_src_switch_put,
.private_value = 0
};
-static int snd_mbox1_create_sync_switch(struct usb_mixer_interface *mixer)
+static int snd_mbox1_controls_create(struct usb_mixer_interface *mixer)
{
- return add_single_ctl_with_resume(mixer, 0,
- snd_mbox1_switch_resume,
- &snd_mbox1_switch, NULL);
+ int err;
+ err = add_single_ctl_with_resume(mixer, 0,
+ snd_mbox1_clk_switch_resume,
+ &snd_mbox1_clk_switch, NULL);
+ if (err < 0)
+ return err;
+
+ return add_single_ctl_with_resume(mixer, 1,
+ snd_mbox1_src_switch_resume,
+ &snd_mbox1_src_switch, NULL);
}
/* Native Instruments device quirks */
break;
case USB_ID(0x0dba, 0x1000): /* Digidesign Mbox 1 */
- err = snd_mbox1_create_sync_switch(mixer);
+ err = snd_mbox1_controls_create(mixer);
break;
case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */
projects / linux-2.6-microblaze.git / blobdiff