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-rw-r--r--sound/usb/card.h1
-rw-r--r--sound/usb/clock.c4
-rw-r--r--sound/usb/format.c34
-rw-r--r--sound/usb/format.h2
-rw-r--r--sound/usb/pcm.c4
-rw-r--r--sound/usb/stream.c3
6 files changed, 16 insertions, 32 deletions
diff --git a/sound/usb/card.h b/sound/usb/card.h
index bf2889a..5ecacaa 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -21,6 +21,7 @@ struct audioformat {
unsigned char endpoint; /* endpoint */
unsigned char ep_attr; /* endpoint attributes */
unsigned char datainterval; /* log_2 of data packet interval */
+ unsigned char protocol; /* UAC_VERSION_1/2 */
unsigned int maxpacksize; /* max. packet size */
unsigned int rates; /* rate bitmasks */
unsigned int rate_min, rate_max; /* min/max rates */
diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index 3a2ce39..86f80c6 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -407,9 +407,7 @@ int snd_usb_init_sample_rate(struct snd_usb_audio *chip, int iface,
struct usb_host_interface *alts,
struct audioformat *fmt, int rate)
{
- struct usb_interface_descriptor *altsd = get_iface_desc(alts);
-
- switch (altsd->bInterfaceProtocol) {
+ switch (fmt->protocol) {
case UAC_VERSION_1:
default:
return set_sample_rate_v1(chip, iface, alts, fmt, rate);
diff --git a/sound/usb/format.c b/sound/usb/format.c
index 99299ff..3525231 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -43,13 +43,12 @@
*/
static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
struct audioformat *fp,
- unsigned int format, void *_fmt,
- int protocol)
+ unsigned int format, void *_fmt)
{
int sample_width, sample_bytes;
u64 pcm_formats = 0;
- switch (protocol) {
+ switch (fp->protocol) {
case UAC_VERSION_1:
default: {
struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
@@ -360,11 +359,8 @@ err:
*/
static int parse_audio_format_i(struct snd_usb_audio *chip,
struct audioformat *fp, unsigned int format,
- struct uac_format_type_i_continuous_descriptor *fmt,
- struct usb_host_interface *iface)
+ struct uac_format_type_i_continuous_descriptor *fmt)
{
- struct usb_interface_descriptor *altsd = get_iface_desc(iface);
- int protocol = altsd->bInterfaceProtocol;
snd_pcm_format_t pcm_format;
int ret;
@@ -387,8 +383,7 @@ static int parse_audio_format_i(struct snd_usb_audio *chip,
}
fp->formats = pcm_format_to_bits(pcm_format);
} else {
- fp->formats = parse_audio_format_i_type(chip, fp, format,
- fmt, protocol);
+ fp->formats = parse_audio_format_i_type(chip, fp, format, fmt);
if (!fp->formats)
return -EINVAL;
}
@@ -398,11 +393,8 @@ static int parse_audio_format_i(struct snd_usb_audio *chip,
* proprietary class specific descriptor.
* audio class v2 uses class specific EP0 range requests for that.
*/
- switch (protocol) {
+ switch (fp->protocol) {
default:
- snd_printdd(KERN_WARNING "%d:%u:%d : invalid protocol version %d, assuming v1\n",
- chip->dev->devnum, fp->iface, fp->altsetting, protocol);
- /* fall through */
case UAC_VERSION_1:
fp->channels = fmt->bNrChannels;
ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7);
@@ -427,12 +419,9 @@ static int parse_audio_format_i(struct snd_usb_audio *chip,
*/
static int parse_audio_format_ii(struct snd_usb_audio *chip,
struct audioformat *fp,
- int format, void *_fmt,
- struct usb_host_interface *iface)
+ int format, void *_fmt)
{
int brate, framesize, ret;
- struct usb_interface_descriptor *altsd = get_iface_desc(iface);
- int protocol = altsd->bInterfaceProtocol;
switch (format) {
case UAC_FORMAT_TYPE_II_AC3:
@@ -452,11 +441,8 @@ static int parse_audio_format_ii(struct snd_usb_audio *chip,
fp->channels = 1;
- switch (protocol) {
+ switch (fp->protocol) {
default:
- snd_printdd(KERN_WARNING "%d:%u:%d : invalid protocol version %d, assuming v1\n",
- chip->dev->devnum, fp->iface, fp->altsetting, protocol);
- /* fall through */
case UAC_VERSION_1: {
struct uac_format_type_ii_discrete_descriptor *fmt = _fmt;
brate = le16_to_cpu(fmt->wMaxBitRate);
@@ -483,17 +469,17 @@ static int parse_audio_format_ii(struct snd_usb_audio *chip,
int snd_usb_parse_audio_format(struct snd_usb_audio *chip,
struct audioformat *fp, unsigned int format,
struct uac_format_type_i_continuous_descriptor *fmt,
- int stream, struct usb_host_interface *iface)
+ int stream)
{
int err;
switch (fmt->bFormatType) {
case UAC_FORMAT_TYPE_I:
case UAC_FORMAT_TYPE_III:
- err = parse_audio_format_i(chip, fp, format, fmt, iface);
+ err = parse_audio_format_i(chip, fp, format, fmt);
break;
case UAC_FORMAT_TYPE_II:
- err = parse_audio_format_ii(chip, fp, format, fmt, iface);
+ err = parse_audio_format_ii(chip, fp, format, fmt);
break;
default:
snd_printd(KERN_INFO "%d:%u:%d : format type %d is not supported yet\n",
diff --git a/sound/usb/format.h b/sound/usb/format.h
index 6f31522..4b8a011 100644
--- a/sound/usb/format.h
+++ b/sound/usb/format.h
@@ -4,6 +4,6 @@
int snd_usb_parse_audio_format(struct snd_usb_audio *chip,
struct audioformat *fp, unsigned int format,
struct uac_format_type_i_continuous_descriptor *fmt,
- int stream, struct usb_host_interface *iface);
+ int stream);
#endif /* __USBAUDIO_FORMAT_H */
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 93b6e32..776c58c 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -202,13 +202,11 @@ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface,
struct usb_host_interface *alts,
struct audioformat *fmt)
{
- struct usb_interface_descriptor *altsd = get_iface_desc(alts);
-
/* if endpoint doesn't have pitch control, bail out */
if (!(fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL))
return 0;
- switch (altsd->bInterfaceProtocol) {
+ switch (fmt->protocol) {
case UAC_VERSION_1:
default:
return init_pitch_v1(chip, iface, alts, fmt);
diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index 7db2f89..1ea5871 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -635,6 +635,7 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
fp->datainterval = snd_usb_parse_datainterval(chip, alts);
+ fp->protocol = protocol;
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
fp->channels = num_channels;
if (snd_usb_get_speed(dev) == USB_SPEED_HIGH)
@@ -676,7 +677,7 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
}
/* ok, let's parse further... */
- if (snd_usb_parse_audio_format(chip, fp, format, fmt, stream, alts) < 0) {
+ if (snd_usb_parse_audio_format(chip, fp, format, fmt, stream) < 0) {
kfree(fp->rate_table);
kfree(fp->chmap);
kfree(fp);
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