mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 11:19:37 +00:00
![Takashi Iwai](/assets/img/avatar_default.png)
The new macro can fix the sparse warnings gracefully: sound/usb/proc.c:73:31: warning: restricted snd_pcm_format_t degrades to integer sound/usb/proc.c:73:38: warning: restricted snd_pcm_format_t degrades to integer sound/usb/proc.c:73:61: warning: restricted snd_pcm_format_t degrades to integer No functional changes, just sparse warning fixes. Link: https://lore.kernel.org/r/20200206163945.6797-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
163 lines
5.2 KiB
C
163 lines
5.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/usb.h>
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/info.h>
|
|
#include <sound/pcm.h>
|
|
|
|
#include "usbaudio.h"
|
|
#include "helper.h"
|
|
#include "card.h"
|
|
#include "endpoint.h"
|
|
#include "proc.h"
|
|
|
|
/* convert our full speed USB rate into sampling rate in Hz */
|
|
static inline unsigned get_full_speed_hz(unsigned int usb_rate)
|
|
{
|
|
return (usb_rate * 125 + (1 << 12)) >> 13;
|
|
}
|
|
|
|
/* convert our high speed USB rate into sampling rate in Hz */
|
|
static inline unsigned get_high_speed_hz(unsigned int usb_rate)
|
|
{
|
|
return (usb_rate * 125 + (1 << 9)) >> 10;
|
|
}
|
|
|
|
/*
|
|
* common proc files to show the usb device info
|
|
*/
|
|
static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
|
|
{
|
|
struct snd_usb_audio *chip = entry->private_data;
|
|
if (!atomic_read(&chip->shutdown))
|
|
snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
|
|
}
|
|
|
|
static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
|
|
{
|
|
struct snd_usb_audio *chip = entry->private_data;
|
|
if (!atomic_read(&chip->shutdown))
|
|
snd_iprintf(buffer, "%04x:%04x\n",
|
|
USB_ID_VENDOR(chip->usb_id),
|
|
USB_ID_PRODUCT(chip->usb_id));
|
|
}
|
|
|
|
void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
|
|
{
|
|
snd_card_ro_proc_new(chip->card, "usbbus", chip,
|
|
proc_audio_usbbus_read);
|
|
snd_card_ro_proc_new(chip->card, "usbid", chip,
|
|
proc_audio_usbid_read);
|
|
}
|
|
|
|
/*
|
|
* proc interface for list the supported pcm formats
|
|
*/
|
|
static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
|
|
{
|
|
struct audioformat *fp;
|
|
static const char * const sync_types[4] = {
|
|
"NONE", "ASYNC", "ADAPTIVE", "SYNC"
|
|
};
|
|
|
|
list_for_each_entry(fp, &subs->fmt_list, list) {
|
|
snd_pcm_format_t fmt;
|
|
|
|
snd_iprintf(buffer, " Interface %d\n", fp->iface);
|
|
snd_iprintf(buffer, " Altset %d\n", fp->altsetting);
|
|
snd_iprintf(buffer, " Format:");
|
|
pcm_for_each_format(fmt)
|
|
if (fp->formats & pcm_format_to_bits(fmt))
|
|
snd_iprintf(buffer, " %s",
|
|
snd_pcm_format_name(fmt));
|
|
snd_iprintf(buffer, "\n");
|
|
snd_iprintf(buffer, " Channels: %d\n", fp->channels);
|
|
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 & 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);
|
|
} else {
|
|
unsigned int i;
|
|
snd_iprintf(buffer, " Rates: ");
|
|
for (i = 0; i < fp->nr_rates; i++) {
|
|
if (i > 0)
|
|
snd_iprintf(buffer, ", ");
|
|
snd_iprintf(buffer, "%d", fp->rate_table[i]);
|
|
}
|
|
snd_iprintf(buffer, "\n");
|
|
}
|
|
if (subs->speed != USB_SPEED_FULL)
|
|
snd_iprintf(buffer, " Data packet interval: %d us\n",
|
|
125 * (1 << fp->datainterval));
|
|
snd_iprintf(buffer, " Bits: %d\n", fp->fmt_bits);
|
|
// snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize);
|
|
// snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes);
|
|
}
|
|
}
|
|
|
|
static void proc_dump_ep_status(struct snd_usb_substream *subs,
|
|
struct snd_usb_endpoint *data_ep,
|
|
struct snd_usb_endpoint *sync_ep,
|
|
struct snd_info_buffer *buffer)
|
|
{
|
|
if (!data_ep)
|
|
return;
|
|
snd_iprintf(buffer, " Packet Size = %d\n", data_ep->curpacksize);
|
|
snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n",
|
|
subs->speed == USB_SPEED_FULL
|
|
? get_full_speed_hz(data_ep->freqm)
|
|
: get_high_speed_hz(data_ep->freqm),
|
|
data_ep->freqm >> 16, data_ep->freqm & 0xffff);
|
|
if (sync_ep && data_ep->freqshift != INT_MIN) {
|
|
int res = 16 - data_ep->freqshift;
|
|
snd_iprintf(buffer, " Feedback Format = %d.%d\n",
|
|
(sync_ep->syncmaxsize > 3 ? 32 : 24) - res, res);
|
|
}
|
|
}
|
|
|
|
static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
|
|
{
|
|
if (subs->running) {
|
|
snd_iprintf(buffer, " Status: Running\n");
|
|
snd_iprintf(buffer, " Interface = %d\n", subs->interface);
|
|
snd_iprintf(buffer, " Altset = %d\n", subs->altset_idx);
|
|
proc_dump_ep_status(subs, subs->data_endpoint, subs->sync_endpoint, buffer);
|
|
} else {
|
|
snd_iprintf(buffer, " Status: Stop\n");
|
|
}
|
|
}
|
|
|
|
static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
|
|
{
|
|
struct snd_usb_stream *stream = entry->private_data;
|
|
|
|
snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name);
|
|
|
|
if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) {
|
|
snd_iprintf(buffer, "\nPlayback:\n");
|
|
proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer);
|
|
proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer);
|
|
}
|
|
if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) {
|
|
snd_iprintf(buffer, "\nCapture:\n");
|
|
proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer);
|
|
proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer);
|
|
}
|
|
}
|
|
|
|
void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream)
|
|
{
|
|
char name[32];
|
|
struct snd_card *card = stream->chip->card;
|
|
|
|
sprintf(name, "stream%d", stream->pcm_index);
|
|
snd_card_ro_proc_new(card, name, stream, proc_pcm_format_read);
|
|
}
|
|
|