X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=sound%2Fusb%2Fmixer.c;h=ed4d89c8b52a52e6425ce5c992cc5d324b339d35;hb=9b4ef97757953c6071563b7cbfc689e3dd771603;hp=298070e8f2d4e354da19dbca3e3d704a7b799321;hpb=23e44302b30ea15c538c3fcc4631c56358ae2feb;p=pandora-kernel.git

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 298070e8f2d4..ed4d89c8b52a 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -382,6 +382,8 @@ error:
 
 static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret)
 {
+	validx += cval->idx_off;
+
 	return (cval->mixer->protocol == UAC_VERSION_1) ?
 		get_ctl_value_v1(cval, request, validx, value_ret) :
 		get_ctl_value_v2(cval, request, validx, value_ret);
@@ -432,6 +434,8 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
 	unsigned char buf[2];
 	int idx = 0, val_len, err, timeout = 10;
 
+	validx += cval->idx_off;
+
 	if (cval->mixer->protocol == UAC_VERSION_1) {
 		val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
 	} else { /* UAC_VERSION_2 */
@@ -719,8 +723,19 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
 			return 0;
 		}
 		case UAC1_PROCESSING_UNIT:
-		case UAC1_EXTENSION_UNIT: {
+		case UAC1_EXTENSION_UNIT:
+		/* UAC2_PROCESSING_UNIT_V2 */
+		/* UAC2_EFFECT_UNIT */ {
 			struct uac_processing_unit_descriptor *d = p1;
+
+			if (state->mixer->protocol == UAC_VERSION_2 &&
+				hdr[2] == UAC2_EFFECT_UNIT) {
+				/* UAC2/UAC1 unit IDs overlap here in an
+				 * uncompatible way. Ignore this unit for now.
+				 */
+				return 0;
+			}
+
 			if (d->bNrInPins) {
 				id = d->baSourceID[0];
 				break; /* continue to parse */
@@ -791,6 +806,33 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
 				  struct snd_kcontrol *kctl)
 {
 	switch (cval->mixer->chip->usb_id) {
+	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */
+		if (strcmp(kctl->id.name, "Effect Duration") == 0) {
+			cval->min = 0x0000;
+			cval->max = 0xffff;
+			cval->res = 0x00e6;
+			break;
+		}
+		if (strcmp(kctl->id.name, "Effect Volume") == 0 ||
+		    strcmp(kctl->id.name, "Effect Feedback Volume") == 0) {
+			cval->min = 0x00;
+			cval->max = 0xff;
+			break;
+		}
+		if (strstr(kctl->id.name, "Effect Return") != NULL) {
+			cval->min = 0xb706;
+			cval->max = 0xff7b;
+			cval->res = 0x0073;
+			break;
+		}
+		if ((strstr(kctl->id.name, "Playback Volume") != NULL) ||
+			(strstr(kctl->id.name, "Effect Send") != NULL)) {
+			cval->min = 0xb5fb; /* -73 dB = 0xb6ff */
+			cval->max = 0xfcfe;
+			cval->res = 0x0073;
+		}
+		break;
+
 	case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
 	case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
 		if (strcmp(kctl->id.name, "Effect Duration") == 0) {
@@ -1094,6 +1136,32 @@ static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str)
 	return strlcat(kctl->id.name, str, sizeof(kctl->id.name));
 }
 
+/* A lot of headsets/headphones have a "Speaker" mixer. Make sure we
+   rename it to "Headphone". We determine if something is a headphone
+   similar to how udev determines form factor. */
+static void check_no_speaker_on_headset(struct snd_kcontrol *kctl,
+					struct snd_card *card)
+{
+	const char *names_to_check[] = {
+		"Headset", "headset", "Headphone", "headphone", NULL};
+	const char **s;
+	bool found = 0;
+
+	if (strcmp("Speaker", kctl->id.name))
+		return;
+
+	for (s = names_to_check; *s; s++)
+		if (strstr(card->shortname, *s)) {
+			found = 1;
+			break;
+		}
+
+	if (!found)
+		return;
+
+	strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name));
+}
+
 static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
 			      unsigned int ctl_mask, int control,
 			      struct usb_audio_term *iterm, int unitid,
@@ -1180,6 +1248,10 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
 				len = snprintf(kctl->id.name, sizeof(kctl->id.name),
 					       "Feature %d", unitid);
 		}
+
+		if (!mapped_name)
+			check_no_speaker_on_headset(kctl, state->mixer->chip->card);
+
 		/* determine the stream direction:
 		 * if the connected output is USB stream, then it's likely a
 		 * capture stream.  otherwise it should be playback (hopefully :)