#include <linux/usb.h>
#include <linux/moduleparam.h>
#include <linux/mutex.h>
+#include <linux/usb/audio.h>
+#include <linux/usb/ch9.h>
+
#include <sound/core.h>
#include <sound/info.h>
#include <sound/pcm.h>
if (subs->transfer_done >= runtime->period_size) {
subs->transfer_done -= runtime->period_size;
period_elapsed = 1;
- if (subs->fmt_type == USB_FORMAT_TYPE_II) {
+ if (subs->fmt_type == UAC_FORMAT_TYPE_II) {
if (subs->transfer_done > 0) {
/* FIXME: fill-max mode is not
* supported yet */
u->packets = (i + 1) * total_packs / subs->nurbs
- i * total_packs / subs->nurbs;
u->buffer_size = maxsize * u->packets;
- if (subs->fmt_type == USB_FORMAT_TYPE_II)
+ if (subs->fmt_type == UAC_FORMAT_TYPE_II)
u->packets++; /* for transfer delimiter */
u->urb = usb_alloc_urb(u->packets, GFP_KERNEL);
if (!u->urb)
if (i >= fp->nr_rates)
continue;
}
- attr = fp->ep_attr & EP_ATTR_MASK;
+ attr = fp->ep_attr & USB_ENDPOINT_SYNCTYPE;
if (! found) {
found = fp;
cur_attr = attr;
* M-audio audiophile USB.
*/
if (attr != cur_attr) {
- if ((attr == EP_ATTR_ASYNC &&
+ if ((attr == USB_ENDPOINT_SYNC_ASYNC &&
subs->direction == SNDRV_PCM_STREAM_PLAYBACK) ||
- (attr == EP_ATTR_ADAPTIVE &&
+ (attr == USB_ENDPOINT_SYNC_ADAPTIVE &&
subs->direction == SNDRV_PCM_STREAM_CAPTURE))
continue;
- if ((cur_attr == EP_ATTR_ASYNC &&
+ if ((cur_attr == USB_ENDPOINT_SYNC_ASYNC &&
subs->direction == SNDRV_PCM_STREAM_PLAYBACK) ||
- (cur_attr == EP_ATTR_ADAPTIVE &&
+ (cur_attr == USB_ENDPOINT_SYNC_ADAPTIVE &&
subs->direction == SNDRV_PCM_STREAM_CAPTURE)) {
found = fp;
cur_attr = attr;
ep = get_endpoint(alts, 0)->bEndpointAddress;
/* if endpoint has pitch control, enable it */
- if (fmt->attributes & EP_CS_ATTR_PITCH_CONTROL) {
+ if (fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL) {
data[0] = 1;
- if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR,
+ if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT,
- PITCH_CONTROL << 8, ep, data, 1, 1000)) < 0) {
+ UAC_EP_CS_ATTR_PITCH_CONTROL << 8, ep, data, 1, 1000)) < 0) {
snd_printk(KERN_ERR "%d:%d:%d: cannot set enable PITCH\n",
dev->devnum, iface, ep);
return err;
ep = get_endpoint(alts, 0)->bEndpointAddress;
/* if endpoint has sampling rate control, set it */
- if (fmt->attributes & EP_CS_ATTR_SAMPLE_RATE) {
+ if (fmt->attributes & UAC_EP_CS_ATTR_SAMPLE_RATE) {
int crate;
data[0] = rate;
data[1] = rate >> 8;
data[2] = rate >> 16;
- if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR,
+ if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT,
- SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) {
+ UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000)) < 0) {
snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d to ep %#x\n",
dev->devnum, iface, fmt->altsetting, rate, ep);
return err;
}
- if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR,
+ if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR,
USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_IN,
- SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) {
+ UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000)) < 0) {
snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq at ep %#x\n",
dev->devnum, iface, fmt->altsetting, ep);
return 0; /* some devices don't support reading */
* descriptors which fool us. if it has only one EP,
* assume it as adaptive-out or sync-in.
*/
- attr = fmt->ep_attr & EP_ATTR_MASK;
- if (((is_playback && attr == EP_ATTR_ASYNC) ||
- (! is_playback && attr == EP_ATTR_ADAPTIVE)) &&
+ attr = fmt->ep_attr & USB_ENDPOINT_SYNCTYPE;
+ if (((is_playback && attr == USB_ENDPOINT_SYNC_ASYNC) ||
+ (! is_playback && attr == USB_ENDPOINT_SYNC_ADAPTIVE)) &&
altsd->bNumEndpoints >= 2) {
/* check sync-pipe endpoint */
/* ... and check descriptor size before accessing bSynchAddress
}
/* always fill max packet size */
- if (fmt->attributes & EP_CS_ATTR_FILL_MAX)
+ if (fmt->attributes & UAC_EP_CS_ATTR_FILL_MAX)
subs->fill_max = 1;
if ((err = init_usb_pitch(dev, subs->interface, alts, fmt)) < 0)
runtime->hw.channels_min = fp->channels;
if (runtime->hw.channels_max < fp->channels)
runtime->hw.channels_max = fp->channels;
- if (fp->fmt_type == USB_FORMAT_TYPE_II && fp->frame_size > 0) {
+ if (fp->fmt_type == UAC_FORMAT_TYPE_II && fp->frame_size > 0) {
/* FIXME: there might be more than one audio formats... */
runtime->hw.period_bytes_min = runtime->hw.period_bytes_max =
fp->frame_size;
struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
struct snd_usb_substream *subs = &as->substream[direction];
- if (subs->interface >= 0) {
+ if (!as->chip->shutdown && subs->interface >= 0) {
usb_set_interface(subs->dev, subs->interface, 0);
subs->interface = -1;
}
#include "usbquirks.h"
{ .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS),
.bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIO_CONTROL },
+ .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL },
{ } /* Terminating entry */
};
snd_iprintf(buffer, " Endpoint: %d %s (%s)\n",
fp->endpoint & USB_ENDPOINT_NUMBER_MASK,
fp->endpoint & USB_DIR_IN ? "IN" : "OUT",
- sync_types[(fp->ep_attr & EP_ATTR_MASK) >> 2]);
+ sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]);
if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) {
snd_iprintf(buffer, " Rates: %d - %d (continuous)\n",
fp->rate_min, fp->rate_max);
* @format: the format tag (wFormatTag)
* @fmt: the format type descriptor
*/
-static int parse_audio_format_i_type(struct snd_usb_audio *chip, struct audioformat *fp,
- int format, unsigned char *fmt)
+static int parse_audio_format_i_type(struct snd_usb_audio *chip,
+ struct audioformat *fp,
+ int format, void *_fmt,
+ int protocol)
{
- int pcm_format;
+ int pcm_format, i;
int sample_width, sample_bytes;
+ switch (protocol) {
+ case UAC_VERSION_1: {
+ struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
+ sample_width = fmt->bBitResolution;
+ sample_bytes = fmt->bSubframeSize;
+ break;
+ }
+
+ case UAC_VERSION_2: {
+ struct uac_format_type_i_ext_descriptor *fmt = _fmt;
+ sample_width = fmt->bBitResolution;
+ sample_bytes = fmt->bSubslotSize;
+
+ /*
+ * FIXME
+ * USB audio class v2 devices specify a bitmap of possible
+ * audio formats rather than one fix value. For now, we just
+ * pick one of them and report that as the only possible
+ * value for this setting.
+ * The bit allocation map is in fact compatible to the
+ * wFormatTag of the v1 AS streaming descriptors, which is why
+ * we can simply map the matrix.
+ */
+
+ for (i = 0; i < 5; i++)
+ if (format & (1UL << i)) {
+ format = i + 1;
+ break;
+ }
+
+ break;
+ }
+
+ default:
+ return -EINVAL;
+ }
+
/* FIXME: correct endianess and sign? */
pcm_format = -1;
- sample_width = fmt[6];
- sample_bytes = fmt[5];
+
switch (format) {
- case 0: /* some devices don't define this correctly... */
+ case UAC_FORMAT_TYPE_I_UNDEFINED: /* some devices don't define this correctly... */
snd_printdd(KERN_INFO "%d:%u:%d : format type 0 is detected, processed as PCM\n",
chip->dev->devnum, fp->iface, fp->altsetting);
/* fall-through */
- case USB_AUDIO_FORMAT_PCM:
+ case UAC_FORMAT_TYPE_I_PCM:
if (sample_width > sample_bytes * 8) {
snd_printk(KERN_INFO "%d:%u:%d : sample bitwidth %d in over sample bytes %d\n",
chip->dev->devnum, fp->iface, fp->altsetting,
sample_width, sample_bytes);
}
/* check the format byte size */
- switch (fmt[5]) {
+ switch (sample_bytes) {
case 1:
pcm_format = SNDRV_PCM_FORMAT_S8;
break;
break;
default:
snd_printk(KERN_INFO "%d:%u:%d : unsupported sample bitwidth %d in %d bytes\n",
- chip->dev->devnum, fp->iface,
- fp->altsetting, sample_width, sample_bytes);
+ chip->dev->devnum, fp->iface, fp->altsetting,
+ sample_width, sample_bytes);
break;
}
break;
- case USB_AUDIO_FORMAT_PCM8:
+ case UAC_FORMAT_TYPE_I_PCM8:
pcm_format = SNDRV_PCM_FORMAT_U8;
/* Dallas DS4201 workaround: it advertises U8 format, but really
if (chip->usb_id == USB_ID(0x04fa, 0x4201))
pcm_format = SNDRV_PCM_FORMAT_S8;
break;
- case USB_AUDIO_FORMAT_IEEE_FLOAT:
+ case UAC_FORMAT_TYPE_I_IEEE_FLOAT:
pcm_format = SNDRV_PCM_FORMAT_FLOAT_LE;
break;
- case USB_AUDIO_FORMAT_ALAW:
+ case UAC_FORMAT_TYPE_I_ALAW:
pcm_format = SNDRV_PCM_FORMAT_A_LAW;
break;
- case USB_AUDIO_FORMAT_MU_LAW:
+ case UAC_FORMAT_TYPE_I_MULAW:
pcm_format = SNDRV_PCM_FORMAT_MU_LAW;
break;
default:
/*
* parse the format descriptor and stores the possible sample rates
- * on the audioformat table.
+ * on the audioformat table (audio class v1).
*
* @dev: usb device
* @fp: audioformat record
* @offset: the start offset of descriptor pointing the rate type
* (7 for type I and II, 8 for type II)
*/
-static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioformat *fp,
- unsigned char *fmt, int offset)
+static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp,
+ unsigned char *fmt, int offset)
{
int nr_rates = fmt[offset];
if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) {
- snd_printk(KERN_ERR "%d:%u:%d : invalid FORMAT_TYPE desc\n",
+ snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc\n",
chip->dev->devnum, fp->iface, fp->altsetting);
return -1;
}
chip->usb_id == USB_ID(0x0d8c, 0x0102)) &&
fp->altsetting == 5 && fp->maxpacksize == 392)
rate = 96000;
+ /* Creative VF0470 Live Cam reports 16 kHz instead of 8kHz */
+ if (rate == 16000 && chip->usb_id == USB_ID(0x041e, 0x4068))
+ rate = 8000;
fp->rate_table[fp->nr_rates] = rate;
if (!fp->rate_min || rate < fp->rate_min)
fp->rate_min = rate;
}
/*
+ * parse the format descriptor and stores the possible sample rates
+ * on the audioformat table (audio class v2).
+ */
+static int parse_audio_format_rates_v2(struct snd_usb_audio *chip,
+ struct audioformat *fp,
+ struct usb_host_interface *iface)
+{
+ struct usb_device *dev = chip->dev;
+ unsigned char tmp[2], *data;
+ int i, nr_rates, data_size, ret = 0;
+
+ /* get the number of sample rates first by only fetching 2 bytes */
+ ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+ 0x0100, chip->clock_id << 8, tmp, sizeof(tmp), 1000);
+
+ if (ret < 0) {
+ snd_printk(KERN_ERR "unable to retrieve number of sample rates\n");
+ goto err;
+ }
+
+ nr_rates = (tmp[1] << 8) | tmp[0];
+ data_size = 2 + 12 * nr_rates;
+ data = kzalloc(data_size, GFP_KERNEL);
+ if (!data) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ /* now get the full information */
+ ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+ 0x0100, chip->clock_id << 8, data, data_size, 1000);
+
+ if (ret < 0) {
+ snd_printk(KERN_ERR "unable to retrieve sample rate range\n");
+ ret = -EINVAL;
+ goto err_free;
+ }
+
+ fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL);
+ if (!fp->rate_table) {
+ ret = -ENOMEM;
+ goto err_free;
+ }
+
+ fp->nr_rates = 0;
+ fp->rate_min = fp->rate_max = 0;
+
+ for (i = 0; i < nr_rates; i++) {
+ int rate = combine_quad(&data[2 + 12 * i]);
+
+ fp->rate_table[fp->nr_rates] = rate;
+ if (!fp->rate_min || rate < fp->rate_min)
+ fp->rate_min = rate;
+ if (!fp->rate_max || rate > fp->rate_max)
+ fp->rate_max = rate;
+ fp->rates |= snd_pcm_rate_to_rate_bit(rate);
+ fp->nr_rates++;
+ }
+
+err_free:
+ kfree(data);
+err:
+ return ret;
+}
+
+/*
* parse the format type I and III descriptors
*/
-static int parse_audio_format_i(struct snd_usb_audio *chip, struct audioformat *fp,
- int format, unsigned char *fmt)
+static int parse_audio_format_i(struct snd_usb_audio *chip,
+ struct audioformat *fp,
+ int format, void *_fmt,
+ struct usb_host_interface *iface)
{
- int pcm_format;
+ struct usb_interface_descriptor *altsd = get_iface_desc(iface);
+ struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
+ int protocol = altsd->bInterfaceProtocol;
+ int pcm_format, ret;
- if (fmt[3] == USB_FORMAT_TYPE_III) {
+ if (fmt->bFormatType == UAC_FORMAT_TYPE_III) {
/* FIXME: the format type is really IECxxx
* but we give normal PCM format to get the existing
* apps working...
pcm_format = SNDRV_PCM_FORMAT_S16_LE;
}
} else {
- pcm_format = parse_audio_format_i_type(chip, fp, format, fmt);
+ pcm_format = parse_audio_format_i_type(chip, fp, format, fmt, protocol);
if (pcm_format < 0)
return -1;
}
+
fp->format = pcm_format;
- fp->channels = fmt[4];
+
+ /* gather possible sample rates */
+ /* audio class v1 reports possible sample rates as part of the
+ * proprietary class specific descriptor.
+ * audio class v2 uses class specific EP0 range requests for that.
+ */
+ switch (protocol) {
+ case UAC_VERSION_1:
+ fp->channels = fmt->bNrChannels;
+ ret = parse_audio_format_rates_v1(chip, fp, _fmt, 7);
+ break;
+ case UAC_VERSION_2:
+ /* fp->channels is already set in this case */
+ ret = parse_audio_format_rates_v2(chip, fp, iface);
+ break;
+ }
+
if (fp->channels < 1) {
snd_printk(KERN_ERR "%d:%u:%d : invalid channels %d\n",
chip->dev->devnum, fp->iface, fp->altsetting, fp->channels);
return -1;
}
- return parse_audio_format_rates(chip, fp, fmt, 7);
+
+ return ret;
}
/*
- * prase the format type II descriptor
+ * parse the format type II descriptor
*/
-static int parse_audio_format_ii(struct snd_usb_audio *chip, struct audioformat *fp,
- int format, unsigned char *fmt)
+static int parse_audio_format_ii(struct snd_usb_audio *chip,
+ struct audioformat *fp,
+ int format, void *_fmt,
+ struct usb_host_interface *iface)
{
- int brate, framesize;
+ int brate, framesize, ret;
+ struct usb_interface_descriptor *altsd = get_iface_desc(iface);
+ int protocol = altsd->bInterfaceProtocol;
+
switch (format) {
- case USB_AUDIO_FORMAT_AC3:
+ case UAC_FORMAT_TYPE_II_AC3:
/* FIXME: there is no AC3 format defined yet */
// fp->format = SNDRV_PCM_FORMAT_AC3;
fp->format = SNDRV_PCM_FORMAT_U8; /* temporarily hack to receive byte streams */
break;
- case USB_AUDIO_FORMAT_MPEG:
+ case UAC_FORMAT_TYPE_II_MPEG:
fp->format = SNDRV_PCM_FORMAT_MPEG;
break;
default:
fp->format = SNDRV_PCM_FORMAT_MPEG;
break;
}
+
fp->channels = 1;
- brate = combine_word(&fmt[4]); /* fmt[4,5] : wMaxBitRate (in kbps) */
- framesize = combine_word(&fmt[6]); /* fmt[6,7]: wSamplesPerFrame */
- snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
- fp->frame_size = framesize;
- return parse_audio_format_rates(chip, fp, fmt, 8); /* fmt[8..] sample rates */
+
+ switch (protocol) {
+ case UAC_VERSION_1: {
+ struct uac_format_type_ii_discrete_descriptor *fmt = _fmt;
+ brate = le16_to_cpu(fmt->wMaxBitRate);
+ framesize = le16_to_cpu(fmt->wSamplesPerFrame);
+ snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
+ fp->frame_size = framesize;
+ ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */
+ break;
+ }
+ case UAC_VERSION_2: {
+ struct uac_format_type_ii_ext_descriptor *fmt = _fmt;
+ brate = le16_to_cpu(fmt->wMaxBitRate);
+ framesize = le16_to_cpu(fmt->wSamplesPerFrame);
+ snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
+ fp->frame_size = framesize;
+ ret = parse_audio_format_rates_v2(chip, fp, iface);
+ break;
+ }
+ }
+
+ return ret;
}
static int parse_audio_format(struct snd_usb_audio *chip, struct audioformat *fp,
- int format, unsigned char *fmt, int stream)
+ int format, unsigned char *fmt, int stream,
+ struct usb_host_interface *iface)
{
int err;
switch (fmt[3]) {
- case USB_FORMAT_TYPE_I:
- case USB_FORMAT_TYPE_III:
- err = parse_audio_format_i(chip, fp, format, fmt);
+ case UAC_FORMAT_TYPE_I:
+ case UAC_FORMAT_TYPE_III:
+ err = parse_audio_format_i(chip, fp, format, fmt, iface);
break;
- case USB_FORMAT_TYPE_II:
- err = parse_audio_format_ii(chip, fp, format, fmt);
+ case UAC_FORMAT_TYPE_II:
+ err = parse_audio_format_ii(chip, fp, format, fmt, iface);
break;
default:
snd_printd(KERN_INFO "%d:%u:%d : format type %d is not supported yet\n",
if (chip->usb_id == USB_ID(0x041e, 0x3000) ||
chip->usb_id == USB_ID(0x041e, 0x3020) ||
chip->usb_id == USB_ID(0x041e, 0x3061)) {
- if (fmt[3] == USB_FORMAT_TYPE_I &&
+ if (fmt[3] == UAC_FORMAT_TYPE_I &&
fp->rates != SNDRV_PCM_RATE_48000 &&
fp->rates != SNDRV_PCM_RATE_96000)
return -1;
struct usb_host_interface *alts;
struct usb_interface_descriptor *altsd;
int i, altno, err, stream;
- int format;
+ int format = 0, num_channels = 0;
struct audioformat *fp = NULL;
unsigned char *fmt, *csep;
- int num;
+ int num, protocol;
dev = chip->dev;
for (i = 0; i < num; i++) {
alts = &iface->altsetting[i];
altsd = get_iface_desc(alts);
+ protocol = altsd->bInterfaceProtocol;
/* skip invalid one */
if ((altsd->bInterfaceClass != USB_CLASS_AUDIO &&
altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
- (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIO_STREAMING &&
+ (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING &&
altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC) ||
altsd->bNumEndpoints < 1 ||
le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0)
continue;
/* get audio formats */
- fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, AS_GENERAL);
- if (!fmt) {
- snd_printk(KERN_ERR "%d:%u:%d : AS_GENERAL descriptor not found\n",
- dev->devnum, iface_no, altno);
- continue;
+ switch (protocol) {
+ case UAC_VERSION_1: {
+ struct uac_as_header_descriptor_v1 *as =
+ snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
+
+ if (!as) {
+ snd_printk(KERN_ERR "%d:%u:%d : UAC_AS_GENERAL descriptor not found\n",
+ dev->devnum, iface_no, altno);
+ continue;
+ }
+
+ if (as->bLength < sizeof(*as)) {
+ snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_AS_GENERAL desc\n",
+ dev->devnum, iface_no, altno);
+ continue;
+ }
+
+ format = le16_to_cpu(as->wFormatTag); /* remember the format value */
+ break;
}
- if (fmt[0] < 7) {
- snd_printk(KERN_ERR "%d:%u:%d : invalid AS_GENERAL desc\n",
- dev->devnum, iface_no, altno);
- continue;
+ case UAC_VERSION_2: {
+ struct uac_as_header_descriptor_v2 *as =
+ snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
+
+ if (!as) {
+ snd_printk(KERN_ERR "%d:%u:%d : UAC_AS_GENERAL descriptor not found\n",
+ dev->devnum, iface_no, altno);
+ continue;
+ }
+
+ if (as->bLength < sizeof(*as)) {
+ snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_AS_GENERAL desc\n",
+ dev->devnum, iface_no, altno);
+ continue;
+ }
+
+ num_channels = as->bNrChannels;
+ format = le32_to_cpu(as->bmFormats);
+
+ break;
}
- format = (fmt[6] << 8) | fmt[5]; /* remember the format value */
+ default:
+ snd_printk(KERN_ERR "%d:%u:%d : unknown interface protocol %04x\n",
+ dev->devnum, iface_no, altno, protocol);
+ continue;
+ }
/* get format type */
- fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, FORMAT_TYPE);
+ fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_FORMAT_TYPE);
if (!fmt) {
- snd_printk(KERN_ERR "%d:%u:%d : no FORMAT_TYPE desc\n",
+ snd_printk(KERN_ERR "%d:%u:%d : no UAC_FORMAT_TYPE desc\n",
dev->devnum, iface_no, altno);
continue;
}
- if (fmt[0] < 8) {
- snd_printk(KERN_ERR "%d:%u:%d : invalid FORMAT_TYPE desc\n",
+ if (((protocol == UAC_VERSION_1) && (fmt[0] < 8)) ||
+ ((protocol == UAC_VERSION_2) && (fmt[0] != 6))) {
+ snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc\n",
dev->devnum, iface_no, altno);
continue;
}
if (fmt[4] == 1 && fmt[5] == 2 && altno == 2 && num == 3 &&
fp && fp->altsetting == 1 && fp->channels == 1 &&
fp->format == SNDRV_PCM_FORMAT_S16_LE &&
+ protocol == UAC_VERSION_1 &&
le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) ==
fp->maxpacksize * 2)
continue;
/* Creamware Noah has this descriptor after the 2nd endpoint */
if (!csep && altsd->bNumEndpoints >= 2)
csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
- if (!csep || csep[0] < 7 || csep[2] != EP_GENERAL) {
+ if (!csep || csep[0] < 7 || csep[2] != UAC_EP_GENERAL) {
snd_printk(KERN_WARNING "%d:%u:%d : no or invalid"
" class specific endpoint descriptor\n",
dev->devnum, iface_no, altno);
fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
fp->datainterval = parse_datainterval(chip, alts);
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
+ /* num_channels is only set for v2 interfaces */
+ fp->channels = num_channels;
if (snd_usb_get_speed(dev) == USB_SPEED_HIGH)
fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
* (fp->maxpacksize & 0x7ff);
/* Optoplay sets the sample rate attribute although
* it seems not supporting it in fact.
*/
- fp->attributes &= ~EP_CS_ATTR_SAMPLE_RATE;
+ fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
break;
case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
/* doesn't set the sample rate attribute, but supports it */
- fp->attributes |= EP_CS_ATTR_SAMPLE_RATE;
+ fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
break;
case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
* plantronics headset and Griffin iMic have set adaptive-in
* although it's really not...
*/
- fp->ep_attr &= ~EP_ATTR_MASK;
+ fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
- fp->ep_attr |= EP_ATTR_ADAPTIVE;
+ fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
else
- fp->ep_attr |= EP_ATTR_SYNC;
+ fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
break;
}
/* ok, let's parse further... */
- if (parse_audio_format(chip, fp, format, fmt, stream) < 0) {
+ if (parse_audio_format(chip, fp, format, fmt, stream, alts) < 0) {
kfree(fp->rate_table);
kfree(fp);
continue;
}
}
+static int snd_usb_create_stream(struct snd_usb_audio *chip, int ctrlif, int interface)
+{
+ struct usb_device *dev = chip->dev;
+ struct usb_host_interface *alts;
+ struct usb_interface_descriptor *altsd;
+ struct usb_interface *iface = usb_ifnum_to_if(dev, interface);
+
+ if (!iface) {
+ snd_printk(KERN_ERR "%d:%u:%d : does not exist\n",
+ dev->devnum, ctrlif, interface);
+ return -EINVAL;
+ }
+
+ if (usb_interface_claimed(iface)) {
+ snd_printdd(KERN_INFO "%d:%d:%d: skipping, already claimed\n",
+ dev->devnum, ctrlif, interface);
+ return -EINVAL;
+ }
+
+ alts = &iface->altsetting[0];
+ altsd = get_iface_desc(alts);
+ if ((altsd->bInterfaceClass == USB_CLASS_AUDIO ||
+ altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC) &&
+ altsd->bInterfaceSubClass == USB_SUBCLASS_MIDISTREAMING) {
+ int err = snd_usbmidi_create(chip->card, iface,
+ &chip->midi_list, NULL);
+ if (err < 0) {
+ snd_printk(KERN_ERR "%d:%u:%d: cannot create sequencer device\n",
+ dev->devnum, ctrlif, interface);
+ return -EINVAL;
+ }
+ usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
+
+ return 0;
+ }
+
+ if ((altsd->bInterfaceClass != USB_CLASS_AUDIO &&
+ altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
+ altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING) {
+ snd_printdd(KERN_ERR "%d:%u:%d: skipping non-supported interface %d\n",
+ dev->devnum, ctrlif, interface, altsd->bInterfaceClass);
+ /* skip non-supported classes */
+ return -EINVAL;
+ }
+
+ if (snd_usb_get_speed(dev) == USB_SPEED_LOW) {
+ snd_printk(KERN_ERR "low speed audio streaming not supported\n");
+ return -EINVAL;
+ }
+
+ if (! parse_audio_endpoints(chip, interface)) {
+ usb_set_interface(dev, interface, 0); /* reset the current interface */
+ usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/*
* parse audio control descriptor and create pcm/midi streams
*/
{
struct usb_device *dev = chip->dev;
struct usb_host_interface *host_iface;
- struct usb_interface *iface;
- unsigned char *p1;
- int i, j;
+ struct usb_interface_descriptor *altsd;
+ void *control_header;
+ int i, protocol;
/* find audiocontrol interface */
host_iface = &usb_ifnum_to_if(dev, ctrlif)->altsetting[0];
- if (!(p1 = snd_usb_find_csint_desc(host_iface->extra, host_iface->extralen, NULL, HEADER))) {
- snd_printk(KERN_ERR "cannot find HEADER\n");
- return -EINVAL;
- }
- if (! p1[7] || p1[0] < 8 + p1[7]) {
- snd_printk(KERN_ERR "invalid HEADER\n");
+ control_header = snd_usb_find_csint_desc(host_iface->extra,
+ host_iface->extralen,
+ NULL, UAC_HEADER);
+ altsd = get_iface_desc(host_iface);
+ protocol = altsd->bInterfaceProtocol;
+
+ if (!control_header) {
+ snd_printk(KERN_ERR "cannot find UAC_HEADER\n");
return -EINVAL;
}
- /*
- * parse all USB audio streaming interfaces
- */
- for (i = 0; i < p1[7]; i++) {
- struct usb_host_interface *alts;
- struct usb_interface_descriptor *altsd;
- j = p1[8 + i];
- iface = usb_ifnum_to_if(dev, j);
- if (!iface) {
- snd_printk(KERN_ERR "%d:%u:%d : does not exist\n",
- dev->devnum, ctrlif, j);
- continue;
- }
- if (usb_interface_claimed(iface)) {
- snd_printdd(KERN_INFO "%d:%d:%d: skipping, already claimed\n", dev->devnum, ctrlif, j);
- continue;
+ switch (protocol) {
+ case UAC_VERSION_1: {
+ struct uac_ac_header_descriptor_v1 *h1 = control_header;
+
+ if (!h1->bInCollection) {
+ snd_printk(KERN_INFO "skipping empty audio interface (v1)\n");
+ return -EINVAL;
}
- alts = &iface->altsetting[0];
- altsd = get_iface_desc(alts);
- if ((altsd->bInterfaceClass == USB_CLASS_AUDIO ||
- altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC) &&
- altsd->bInterfaceSubClass == USB_SUBCLASS_MIDI_STREAMING) {
- int err = snd_usbmidi_create(chip->card, iface,
- &chip->midi_list, NULL);
- if (err < 0) {
- snd_printk(KERN_ERR "%d:%u:%d: cannot create sequencer device\n", dev->devnum, ctrlif, j);
- continue;
- }
- usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
- continue;
+
+ if (h1->bLength < sizeof(*h1) + h1->bInCollection) {
+ snd_printk(KERN_ERR "invalid UAC_HEADER (v1)\n");
+ return -EINVAL;
}
- if ((altsd->bInterfaceClass != USB_CLASS_AUDIO &&
- altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
- altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIO_STREAMING) {
- snd_printdd(KERN_ERR "%d:%u:%d: skipping non-supported interface %d\n", dev->devnum, ctrlif, j, altsd->bInterfaceClass);
- /* skip non-supported classes */
- continue;
+
+ for (i = 0; i < h1->bInCollection; i++)
+ snd_usb_create_stream(chip, ctrlif, h1->baInterfaceNr[i]);
+
+ break;
+ }
+
+ case UAC_VERSION_2: {
+ struct uac_clock_source_descriptor *cs;
+ struct usb_interface_assoc_descriptor *assoc =
+ usb_ifnum_to_if(dev, ctrlif)->intf_assoc;
+
+ if (!assoc) {
+ snd_printk(KERN_ERR "Audio class v2 interfaces need an interface association\n");
+ return -EINVAL;
}
- if (snd_usb_get_speed(dev) == USB_SPEED_LOW) {
- snd_printk(KERN_ERR "low speed audio streaming not supported\n");
- continue;
+
+ /* FIXME: for now, we expect there is at least one clock source
+ * descriptor and we always take the first one.
+ * We should properly support devices with multiple clock sources,
+ * clock selectors and sample rate conversion units. */
+
+ cs = snd_usb_find_csint_desc(host_iface->extra, host_iface->extralen,
+ NULL, UAC_CLOCK_SOURCE);
+
+ if (!cs) {
+ snd_printk(KERN_ERR "CLOCK_SOURCE descriptor not found\n");
+ return -EINVAL;
}
- if (! parse_audio_endpoints(chip, j)) {
- usb_set_interface(dev, j, 0); /* reset the current interface */
- usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
+
+ chip->clock_id = cs->bClockID;
+
+ for (i = 0; i < assoc->bInterfaceCount; i++) {
+ int intf = assoc->bFirstInterface + i;
+
+ if (intf != ctrlif)
+ snd_usb_create_stream(chip, ctrlif, intf);
}
+
+ break;
+ }
+
+ default:
+ snd_printk(KERN_ERR "unknown protocol version 0x%02x\n", protocol);
+ return -EINVAL;
}
return 0;
static const struct audioformat ua_format = {
.format = SNDRV_PCM_FORMAT_S24_3LE,
.channels = 2,
- .fmt_type = USB_FORMAT_TYPE_I,
+ .fmt_type = UAC_FORMAT_TYPE_I,
.altsetting = 1,
.altset_idx = 1,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
ifnum = get_iface_desc(alts)->bInterfaceNumber;
id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
-
if (quirk && quirk->ifnum >= 0 && ifnum != quirk->ifnum)
goto __err_val;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff