#include <linux/slab.h>
#include <linux/string.h>
#include <linux/usb.h>
-#include <linux/vmalloc.h>
#include <linux/moduleparam.h>
#include <linux/mutex.h>
#include <sound/core.h>
unsigned int curpacksize; /* current packet size in bytes (for capture) */
unsigned int curframesize; /* current packet size in frames (for capture) */
unsigned int fill_max: 1; /* fill max packet size always */
+ unsigned int txfr_quirk:1; /* allow sub-frame alignment */
unsigned int fmt_type; /* USB audio format type (1-3) */
unsigned int running: 1; /* running status */
- unsigned int hwptr_done; /* processed frame position in the buffer */
+ unsigned int hwptr_done; /* processed byte position in the buffer */
unsigned int transfer_done; /* processed frames since last period update */
unsigned long active_mask; /* bitmask of active urbs */
unsigned long unlink_mask; /* bitmask of unlinked urbs */
unsigned long flags;
unsigned char *cp;
int i;
- unsigned int stride, len, oldptr;
+ unsigned int stride, frames, bytes, oldptr;
int period_elapsed = 0;
stride = runtime->frame_bits >> 3;
snd_printd(KERN_ERR "frame %d active: %d\n", i, urb->iso_frame_desc[i].status);
// continue;
}
- len = urb->iso_frame_desc[i].actual_length / stride;
- if (! len)
- continue;
+ bytes = urb->iso_frame_desc[i].actual_length;
+ frames = bytes / stride;
+ if (!subs->txfr_quirk)
+ bytes = frames * stride;
+ if (bytes % (runtime->sample_bits >> 3) != 0) {
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+ int oldbytes = bytes;
+#endif
+ bytes = frames * stride;
+ snd_printdd(KERN_ERR "Corrected urb data len. %d->%d\n",
+ oldbytes, bytes);
+ }
/* update the current pointer */
spin_lock_irqsave(&subs->lock, flags);
oldptr = subs->hwptr_done;
- subs->hwptr_done += len;
- if (subs->hwptr_done >= runtime->buffer_size)
- subs->hwptr_done -= runtime->buffer_size;
- subs->transfer_done += len;
+ subs->hwptr_done += bytes;
+ if (subs->hwptr_done >= runtime->buffer_size * stride)
+ subs->hwptr_done -= runtime->buffer_size * stride;
+ frames = (bytes + (oldptr % stride)) / stride;
+ subs->transfer_done += frames;
if (subs->transfer_done >= runtime->period_size) {
subs->transfer_done -= runtime->period_size;
period_elapsed = 1;
}
spin_unlock_irqrestore(&subs->lock, flags);
/* copy a data chunk */
- if (oldptr + len > runtime->buffer_size) {
- unsigned int cnt = runtime->buffer_size - oldptr;
- unsigned int blen = cnt * stride;
- memcpy(runtime->dma_area + oldptr * stride, cp, blen);
- memcpy(runtime->dma_area, cp + blen, len * stride - blen);
+ if (oldptr + bytes > runtime->buffer_size * stride) {
+ unsigned int bytes1 =
+ runtime->buffer_size * stride - oldptr;
+ memcpy(runtime->dma_area + oldptr, cp, bytes1);
+ memcpy(runtime->dma_area, cp + bytes1, bytes - bytes1);
} else {
- memcpy(runtime->dma_area + oldptr * stride, cp, len * stride);
+ memcpy(runtime->dma_area + oldptr, cp, bytes);
}
}
if (period_elapsed)
struct snd_pcm_runtime *runtime,
struct urb *urb)
{
- int i, stride, offs;
- unsigned int counts;
+ int i, stride;
+ unsigned int counts, frames, bytes;
unsigned long flags;
int period_elapsed = 0;
struct snd_urb_ctx *ctx = urb->context;
stride = runtime->frame_bits >> 3;
- offs = 0;
+ frames = 0;
urb->dev = ctx->subs->dev; /* we need to set this at each time */
urb->number_of_packets = 0;
spin_lock_irqsave(&subs->lock, flags);
for (i = 0; i < ctx->packets; i++) {
counts = snd_usb_audio_next_packet_size(subs);
/* set up descriptor */
- urb->iso_frame_desc[i].offset = offs * stride;
+ urb->iso_frame_desc[i].offset = frames * stride;
urb->iso_frame_desc[i].length = counts * stride;
- offs += counts;
+ frames += counts;
urb->number_of_packets++;
subs->transfer_done += counts;
if (subs->transfer_done >= runtime->period_size) {
if (subs->transfer_done > 0) {
/* FIXME: fill-max mode is not
* supported yet */
- offs -= subs->transfer_done;
+ frames -= subs->transfer_done;
counts -= subs->transfer_done;
urb->iso_frame_desc[i].length =
counts * stride;
if (i < ctx->packets) {
/* add a transfer delimiter */
urb->iso_frame_desc[i].offset =
- offs * stride;
+ frames * stride;
urb->iso_frame_desc[i].length = 0;
urb->number_of_packets++;
}
if (period_elapsed) /* finish at the period boundary */
break;
}
- if (subs->hwptr_done + offs > runtime->buffer_size) {
+ bytes = frames * stride;
+ if (subs->hwptr_done + bytes > runtime->buffer_size * stride) {
/* err, the transferred area goes over buffer boundary. */
- unsigned int len = runtime->buffer_size - subs->hwptr_done;
+ unsigned int bytes1 =
+ runtime->buffer_size * stride - subs->hwptr_done;
memcpy(urb->transfer_buffer,
- runtime->dma_area + subs->hwptr_done * stride,
- len * stride);
- memcpy(urb->transfer_buffer + len * stride,
- runtime->dma_area,
- (offs - len) * stride);
+ runtime->dma_area + subs->hwptr_done, bytes1);
+ memcpy(urb->transfer_buffer + bytes1,
+ runtime->dma_area, bytes - bytes1);
} else {
memcpy(urb->transfer_buffer,
- runtime->dma_area + subs->hwptr_done * stride,
- offs * stride);
+ runtime->dma_area + subs->hwptr_done, bytes);
}
- subs->hwptr_done += offs;
- if (subs->hwptr_done >= runtime->buffer_size)
- subs->hwptr_done -= runtime->buffer_size;
- runtime->delay += offs;
+ subs->hwptr_done += bytes;
+ if (subs->hwptr_done >= runtime->buffer_size * stride)
+ subs->hwptr_done -= runtime->buffer_size * stride;
+ runtime->delay += frames;
spin_unlock_irqrestore(&subs->lock, flags);
- urb->transfer_buffer_length = offs * stride;
+ urb->transfer_buffer_length = bytes;
if (period_elapsed)
snd_pcm_period_elapsed(subs->pcm_substream);
return 0;
}
-/* get the physical page pointer at the given offset */
-static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
- unsigned long offset)
-{
- void *pageptr = subs->runtime->dma_area + offset;
- return vmalloc_to_page(pageptr);
-}
-
-/* allocate virtual buffer; may be called more than once */
-static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, size_t size)
-{
- struct snd_pcm_runtime *runtime = subs->runtime;
- if (runtime->dma_area) {
- if (runtime->dma_bytes >= size)
- return 0; /* already large enough */
- vfree(runtime->dma_area);
- }
- runtime->dma_area = vmalloc_user(size);
- if (!runtime->dma_area)
- return -ENOMEM;
- runtime->dma_bytes = size;
- return 0;
-}
-
-/* free virtual buffer; may be called more than once */
-static int snd_pcm_free_vmalloc_buffer(struct snd_pcm_substream *subs)
-{
- struct snd_pcm_runtime *runtime = subs->runtime;
-
- vfree(runtime->dma_area);
- runtime->dma_area = NULL;
- return 0;
-}
-
-
/*
* unlink active urbs.
*/
/*
- * return the current pcm pointer. just return the hwptr_done value.
+ * return the current pcm pointer. just based on the hwptr_done value.
*/
static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_usb_substream *subs;
- snd_pcm_uframes_t hwptr_done;
+ unsigned int hwptr_done;
subs = (struct snd_usb_substream *)substream->runtime->private_data;
spin_lock(&subs->lock);
hwptr_done = subs->hwptr_done;
spin_unlock(&subs->lock);
- return hwptr_done;
+ return hwptr_done / (substream->runtime->frame_bits >> 3);
}
}
/*
+ * For E-Mu 0404USB/0202USB/TrackerPre sample rate should be set for device,
+ * not for interface.
+ */
+static void set_format_emu_quirk(struct snd_usb_substream *subs,
+ struct audioformat *fmt)
+{
+ unsigned char emu_samplerate_id = 0;
+
+ /* When capture is active
+ * sample rate shouldn't be changed
+ * by playback substream
+ */
+ if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
+ if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
+ return;
+ }
+
+ switch (fmt->rate_min) {
+ case 48000:
+ emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
+ break;
+ case 88200:
+ emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
+ break;
+ case 96000:
+ emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
+ break;
+ case 176400:
+ emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
+ break;
+ case 192000:
+ emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
+ break;
+ default:
+ emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
+ break;
+ }
+ snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
+}
+
+/*
* find a matching format and set up the interface
*/
static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
subs->cur_audiofmt = fmt;
+ switch (subs->stream->chip->usb_id) {
+ case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
+ case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
+ case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
+ set_format_emu_quirk(subs, fmt);
+ break;
+ }
+
#if 0
printk(KERN_DEBUG
"setting done: format = %d, rate = %d..%d, channels = %d\n",
unsigned int channels, rate, format;
int ret, changed;
- ret = snd_pcm_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
+ ret = snd_pcm_lib_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(hw_params));
if (ret < 0)
return ret;
subs->period_bytes = 0;
if (!subs->stream->chip->shutdown)
release_substream_urbs(subs, 0);
- return snd_pcm_free_vmalloc_buffer(substream);
+ return snd_pcm_lib_free_vmalloc_buffer(substream);
}
/*
.prepare = snd_usb_pcm_prepare,
.trigger = snd_usb_pcm_playback_trigger,
.pointer = snd_usb_pcm_pointer,
- .page = snd_pcm_get_vmalloc_page,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
};
static struct snd_pcm_ops snd_usb_capture_ops = {
.prepare = snd_usb_pcm_prepare,
.trigger = snd_usb_pcm_capture_trigger,
.pointer = snd_usb_pcm_pointer,
- .page = snd_pcm_get_vmalloc_page,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
};
subs->stream = as;
subs->direction = stream;
subs->dev = as->chip->dev;
+ subs->txfr_quirk = as->chip->txfr_quirk;
if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) {
subs->ops = audio_urb_ops[stream];
} else {
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->datainterval = parse_datainterval(chip, alts);
- 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);
return 0;
}
+/*
+ * Allow alignment on audio sub-slot (channel samples) rather than
+ * on audio slots (audio frames)
+ */
+static int create_align_transfer_quirk(struct snd_usb_audio *chip,
+ struct usb_interface *iface,
+ const struct snd_usb_audio_quirk *quirk)
+{
+ chip->txfr_quirk = 1;
+ return 1; /* Continue with creating streams and mixer */
+}
+
/*
* boot quirks
}
/*
+ * This call will put the synth in "USB send" mode, i.e it will send MIDI
+ * messages through USB (this is disabled at startup). The synth will
+ * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
+ * sign on its LCD. Values here are chosen based on sniffing USB traffic
+ * under Windows.
+ */
+static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
+{
+ int err, actual_length;
+
+ /* "midi send" enable */
+ static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
+
+ void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
+ ARRAY_SIZE(seq), &actual_length, 1000);
+ kfree(buf);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+/*
* Setup quirks
*/
#define AUDIOPHILE_SET 0x01 /* if set, parse device_setup */
[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
[QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk,
- [QUIRK_AUDIO_EDIROL_UA101] = create_ua101_quirk,
- [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk
+ [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
+ [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk
};
if (quirk->type < QUIRK_TYPE_COUNT) {
goto __err_val;
}
+ /* Access Music VirusTI Desktop */
+ if (id == USB_ID(0x133e, 0x0815)) {
+ if (snd_usb_accessmusic_boot_quirk(dev) < 0)
+ goto __err_val;
+ }
+
/*
* found a config. now register to ALSA
*/
}
}
+ chip->txfr_quirk = 0;
err = 1; /* continue */
if (quirk && quirk->ifnum != QUIRK_NO_INTERFACE) {
/* need some special handlings */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff