aboutsummaryrefslogtreecommitdiff
path: root/sound/usb/usbaudio.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/usb/usbaudio.c')
-rw-r--r--sound/usb/usbaudio.c189
1 files changed, 131 insertions, 58 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 19bdcc74c96..4dfb91d4398 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -186,6 +186,7 @@ struct snd_usb_substream {
u64 formats; /* format bitmasks (all or'ed) */
unsigned int num_formats; /* number of supported audio formats (list) */
struct list_head fmt_list; /* format list */
+ struct snd_pcm_hw_constraint_list rate_list; /* limited rates */
spinlock_t lock;
struct snd_urb_ops ops; /* callbacks (must be filled at init) */
@@ -253,7 +254,7 @@ static int prepare_capture_sync_urb(struct snd_usb_substream *subs,
struct urb *urb)
{
unsigned char *cp = urb->transfer_buffer;
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
urb->dev = ctx->subs->dev; /* we need to set this at each time */
urb->iso_frame_desc[0].length = 3;
@@ -275,7 +276,7 @@ static int prepare_capture_sync_urb_hs(struct snd_usb_substream *subs,
struct urb *urb)
{
unsigned char *cp = urb->transfer_buffer;
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
urb->dev = ctx->subs->dev; /* we need to set this at each time */
urb->iso_frame_desc[0].length = 4;
@@ -313,7 +314,7 @@ static int prepare_capture_urb(struct snd_usb_substream *subs,
struct urb *urb)
{
int i, offs;
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
offs = 0;
urb->dev = ctx->subs->dev; /* we need to set this at each time */
@@ -391,6 +392,16 @@ static int retire_capture_urb(struct snd_usb_substream *subs,
return 0;
}
+/*
+ * Process after capture complete when paused. Nothing to do.
+ */
+static int retire_paused_capture_urb(struct snd_usb_substream *subs,
+ struct snd_pcm_runtime *runtime,
+ struct urb *urb)
+{
+ return 0;
+}
+
/*
* prepare urb for full speed playback sync pipe
@@ -402,7 +413,7 @@ static int prepare_playback_sync_urb(struct snd_usb_substream *subs,
struct snd_pcm_runtime *runtime,
struct urb *urb)
{
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
urb->dev = ctx->subs->dev; /* we need to set this at each time */
urb->iso_frame_desc[0].length = 3;
@@ -420,7 +431,7 @@ static int prepare_playback_sync_urb_hs(struct snd_usb_substream *subs,
struct snd_pcm_runtime *runtime,
struct urb *urb)
{
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
urb->dev = ctx->subs->dev; /* we need to set this at each time */
urb->iso_frame_desc[0].length = 4;
@@ -493,13 +504,13 @@ static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs)
}
/*
- * Prepare urb for streaming before playback starts.
+ * Prepare urb for streaming before playback starts or when paused.
*
- * We don't yet have data, so we send a frame of silence.
+ * We don't have any data, so we send a frame of silence.
*/
-static int prepare_startup_playback_urb(struct snd_usb_substream *subs,
- struct snd_pcm_runtime *runtime,
- struct urb *urb)
+static int prepare_nodata_playback_urb(struct snd_usb_substream *subs,
+ struct snd_pcm_runtime *runtime,
+ struct urb *urb)
{
unsigned int i, offs, counts;
struct snd_urb_ctx *ctx = urb->context;
@@ -537,7 +548,7 @@ static int prepare_playback_urb(struct snd_usb_substream *subs,
unsigned int counts;
unsigned long flags;
int period_elapsed = 0;
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
stride = runtime->frame_bits >> 3;
@@ -622,7 +633,7 @@ static int retire_playback_urb(struct snd_usb_substream *subs,
*/
static struct snd_urb_ops audio_urb_ops[2] = {
{
- .prepare = prepare_startup_playback_urb,
+ .prepare = prepare_nodata_playback_urb,
.retire = retire_playback_urb,
.prepare_sync = prepare_playback_sync_urb,
.retire_sync = retire_playback_sync_urb,
@@ -637,7 +648,7 @@ static struct snd_urb_ops audio_urb_ops[2] = {
static struct snd_urb_ops audio_urb_ops_high_speed[2] = {
{
- .prepare = prepare_startup_playback_urb,
+ .prepare = prepare_nodata_playback_urb,
.retire = retire_playback_urb,
.prepare_sync = prepare_playback_sync_urb_hs,
.retire_sync = retire_playback_sync_urb_hs,
@@ -655,7 +666,7 @@ static struct snd_urb_ops audio_urb_ops_high_speed[2] = {
*/
static void snd_complete_urb(struct urb *urb)
{
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
struct snd_usb_substream *subs = ctx->subs;
struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
int err = 0;
@@ -678,7 +689,7 @@ static void snd_complete_urb(struct urb *urb)
*/
static void snd_complete_sync_urb(struct urb *urb)
{
- struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+ struct snd_urb_ctx *ctx = urb->context;
struct snd_usb_substream *subs = ctx->subs;
struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
int err = 0;
@@ -925,10 +936,14 @@ static int snd_usb_pcm_playback_trigger(struct snd_pcm_substream *substream,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
subs->ops.prepare = prepare_playback_urb;
return 0;
case SNDRV_PCM_TRIGGER_STOP:
return deactivate_urbs(subs, 0, 0);
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ subs->ops.prepare = prepare_nodata_playback_urb;
+ return 0;
default:
return -EINVAL;
}
@@ -944,9 +959,16 @@ static int snd_usb_pcm_capture_trigger(struct snd_pcm_substream *substream,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
+ subs->ops.retire = retire_capture_urb;
return start_urbs(subs, substream->runtime);
case SNDRV_PCM_TRIGGER_STOP:
return deactivate_urbs(subs, 0, 0);
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ subs->ops.retire = retire_paused_capture_urb;
+ return 0;
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ subs->ops.retire = retire_capture_urb;
+ return 0;
default:
return -EINVAL;
}
@@ -1408,7 +1430,7 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
static int snd_usb_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
- struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data;
+ struct snd_usb_substream *subs = substream->runtime->private_data;
struct audioformat *fmt;
unsigned int channels, rate, format;
int ret, changed;
@@ -1464,7 +1486,7 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream,
*/
static int snd_usb_hw_free(struct snd_pcm_substream *substream)
{
- struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data;
+ struct snd_usb_substream *subs = substream->runtime->private_data;
subs->cur_audiofmt = NULL;
subs->cur_rate = 0;
@@ -1505,33 +1527,20 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
/* for playback, submit the URBs now; otherwise, the first hwptr_done
* updates for all URBs would happen at the same time when starting */
if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
- subs->ops.prepare = prepare_startup_playback_urb;
+ subs->ops.prepare = prepare_nodata_playback_urb;
return start_urbs(subs, runtime);
} else
return 0;
}
-static struct snd_pcm_hardware snd_usb_playback =
+static struct snd_pcm_hardware snd_usb_hardware =
{
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER,
- .buffer_bytes_max = 1024 * 1024,
- .period_bytes_min = 64,
- .period_bytes_max = 512 * 1024,
- .periods_min = 2,
- .periods_max = 1024,
-};
-
-static struct snd_pcm_hardware snd_usb_capture =
-{
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_BATCH |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER,
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_PAUSE,
.buffer_bytes_max = 1024 * 1024,
.period_bytes_min = 64,
.period_bytes_max = 512 * 1024,
@@ -1810,28 +1819,33 @@ static int check_hw_params_convention(struct snd_usb_substream *subs)
static int snd_usb_pcm_check_knot(struct snd_pcm_runtime *runtime,
struct snd_usb_substream *subs)
{
- struct list_head *p;
- struct snd_pcm_hw_constraint_list constraints_rates;
+ struct audioformat *fp;
+ int count = 0, needs_knot = 0;
int err;
- list_for_each(p, &subs->fmt_list) {
- struct audioformat *fp;
- fp = list_entry(p, struct audioformat, list);
-
- if (!fp->needs_knot)
- continue;
-
- constraints_rates.count = fp->nr_rates;
- constraints_rates.list = fp->rate_table;
- constraints_rates.mask = 0;
-
- err = snd_pcm_hw_constraint_list(runtime, 0,
- SNDRV_PCM_HW_PARAM_RATE,
- &constraints_rates);
-
- if (err < 0)
- return err;
+ list_for_each_entry(fp, &subs->fmt_list, list) {
+ if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS)
+ return 0;
+ count += fp->nr_rates;
+ if (fp->needs_knot)
+ needs_knot = 1;
}
+ if (!needs_knot)
+ return 0;
+
+ subs->rate_list.count = count;
+ subs->rate_list.list = kmalloc(sizeof(int) * count, GFP_KERNEL);
+ subs->rate_list.mask = 0;
+ count = 0;
+ list_for_each_entry(fp, &subs->fmt_list, list) {
+ int i;
+ for (i = 0; i < fp->nr_rates; i++)
+ subs->rate_list.list[count++] = fp->rate_table[i];
+ }
+ err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ &subs->rate_list);
+ if (err < 0)
+ return err;
return 0;
}
@@ -1904,8 +1918,7 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre
return 0;
}
-static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction,
- struct snd_pcm_hardware *hw)
+static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction)
{
struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -1913,7 +1926,7 @@ static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction,
subs->interface = -1;
subs->format = 0;
- runtime->hw = *hw;
+ runtime->hw = snd_usb_hardware;
runtime->private_data = subs;
subs->pcm_substream = substream;
return setup_hw_info(runtime, subs);
@@ -1934,7 +1947,7 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction)
static int snd_usb_playback_open(struct snd_pcm_substream *substream)
{
- return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK, &snd_usb_playback);
+ return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK);
}
static int snd_usb_playback_close(struct snd_pcm_substream *substream)
@@ -1944,7 +1957,7 @@ static int snd_usb_playback_close(struct snd_pcm_substream *substream)
static int snd_usb_capture_open(struct snd_pcm_substream *substream)
{
- return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE, &snd_usb_capture);
+ return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE);
}
static int snd_usb_capture_close(struct snd_pcm_substream *substream)
@@ -2231,6 +2244,7 @@ static void free_substream(struct snd_usb_substream *subs)
kfree(fp->rate_table);
kfree(fp);
}
+ kfree(subs->rate_list.list);
}
@@ -2456,6 +2470,7 @@ static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioform
* build the rate table and bitmap flags
*/
int r, idx, c;
+ unsigned int nonzero_rates = 0;
/* this table corresponds to the SNDRV_PCM_RATE_XXX bit */
static unsigned int conv_rates[] = {
5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
@@ -2478,6 +2493,7 @@ static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioform
fp->altsetting == 5 && fp->maxpacksize == 392)
rate = 96000;
fp->rate_table[r] = rate;
+ nonzero_rates |= rate;
if (rate < fp->rate_min)
fp->rate_min = rate;
else if (rate > fp->rate_max)
@@ -2493,6 +2509,10 @@ static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioform
if (!found)
fp->needs_knot = 1;
}
+ if (!nonzero_rates) {
+ hwc_debug("All rates were zero. Skipping format!\n");
+ return -1;
+ }
if (fp->needs_knot)
fp->rates |= SNDRV_PCM_RATE_KNOT;
} else {
@@ -3057,6 +3077,58 @@ static int create_ua1000_quirk(struct snd_usb_audio *chip,
return 0;
}
+/*
+ * Create a stream for an Edirol UA-101 interface.
+ * Copy, paste and modify from Edirol UA-1000
+ */
+static int create_ua101_quirk(struct snd_usb_audio *chip,
+ struct usb_interface *iface,
+ const struct snd_usb_audio_quirk *quirk)
+{
+ static const struct audioformat ua101_format = {
+ .format = SNDRV_PCM_FORMAT_S32_LE,
+ .fmt_type = USB_FORMAT_TYPE_I,
+ .altsetting = 1,
+ .altset_idx = 1,
+ .attributes = 0,
+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
+ };
+ struct usb_host_interface *alts;
+ struct usb_interface_descriptor *altsd;
+ struct audioformat *fp;
+ int stream, err;
+
+ if (iface->num_altsetting != 2)
+ return -ENXIO;
+ alts = &iface->altsetting[1];
+ altsd = get_iface_desc(alts);
+ if (alts->extralen != 18 || alts->extra[1] != USB_DT_CS_INTERFACE ||
+ altsd->bNumEndpoints != 1)
+ return -ENXIO;
+
+ fp = kmemdup(&ua101_format, sizeof(*fp), GFP_KERNEL);
+ if (!fp)
+ return -ENOMEM;
+
+ fp->channels = alts->extra[11];
+ fp->iface = altsd->bInterfaceNumber;
+ fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
+ fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+ fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
+ fp->rate_max = fp->rate_min = combine_triple(&alts->extra[15]);
+
+ stream = (fp->endpoint & USB_DIR_IN)
+ ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
+ err = add_audio_endpoint(chip, stream, fp);
+ if (err < 0) {
+ kfree(fp);
+ return err;
+ }
+ /* FIXME: playback must be synchronized to capture */
+ usb_set_interface(chip->dev, fp->iface, 0);
+ return 0;
+}
+
static int snd_usb_create_quirk(struct snd_usb_audio *chip,
struct usb_interface *iface,
const struct snd_usb_audio_quirk *quirk);
@@ -3238,6 +3310,7 @@ static int snd_usb_create_quirk(struct snd_usb_audio *chip,
[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
[QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk,
[QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk,
+ [QUIRK_AUDIO_EDIROL_UA101] = create_ua101_quirk,
};
if (quirk->type < QUIRK_TYPE_COUNT) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 20:56:59 +0000