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Diffstat (limited to 'sound/usb/format.c')
-rw-r--r--sound/usb/format.c34
1 files changed, 10 insertions, 24 deletions
diff --git a/sound/usb/format.c b/sound/usb/format.c
index 99299ffb33ac..3525231c6b97 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",