2019-05-27 08:55:05 +02:00
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// SPDX-License-Identifier: GPL-2.0-or-later
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2010-03-04 19:46:13 +01:00
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/*
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*/
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#include <linux/init.h>
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2010-03-29 07:02:50 +02:00
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#include <linux/slab.h>
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2010-03-04 19:46:13 +01:00
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#include <linux/usb.h>
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#include <linux/usb/audio.h>
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2010-03-11 21:13:20 +01:00
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#include <linux/usb/audio-v2.h>
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2018-03-21 01:03:59 +01:00
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#include <linux/usb/audio-v3.h>
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2010-03-04 19:46:13 +01:00
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include "usbaudio.h"
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#include "card.h"
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#include "quirks.h"
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#include "helper.h"
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#include "debug.h"
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2010-05-31 14:51:31 +02:00
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#include "clock.h"
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2011-05-18 11:28:40 +02:00
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#include "format.h"
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2010-03-04 19:46:13 +01:00
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/*
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* parse the audio format type I descriptor
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* and returns the corresponding pcm format
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*
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* @dev: usb device
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* @fp: audioformat record
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* @format: the format tag (wFormatTag)
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2018-03-21 01:03:59 +01:00
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* @fmt: the format type descriptor (v1/v2) or AudioStreaming descriptor (v3)
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2010-03-04 19:46:13 +01:00
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*/
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2010-03-04 19:46:16 +01:00
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static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
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2010-03-04 19:46:13 +01:00
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struct audioformat *fp,
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2018-03-21 01:03:59 +01:00
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u64 format, void *_fmt)
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2010-03-04 19:46:13 +01:00
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{
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int sample_width, sample_bytes;
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2013-03-17 13:07:25 +01:00
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u64 pcm_formats = 0;
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2010-03-04 19:46:13 +01:00
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2013-01-31 21:39:17 +01:00
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switch (fp->protocol) {
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2010-09-03 10:53:11 +02:00
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case UAC_VERSION_1:
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default: {
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2010-03-04 19:46:13 +01:00
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struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
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sample_width = fmt->bBitResolution;
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sample_bytes = fmt->bSubframeSize;
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2018-03-29 11:03:19 +02:00
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format = 1ULL << format;
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2010-03-04 19:46:13 +01:00
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break;
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}
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case UAC_VERSION_2: {
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struct uac_format_type_i_ext_descriptor *fmt = _fmt;
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sample_width = fmt->bBitResolution;
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sample_bytes = fmt->bSubslotSize;
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2013-03-17 13:07:25 +01:00
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2018-06-13 00:43:01 +02:00
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if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) {
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2013-03-17 13:07:25 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL;
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2018-06-13 00:43:01 +02:00
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/* flag potentially raw DSD capable altsettings */
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fp->dsd_raw = true;
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}
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2013-03-17 13:07:25 +01:00
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2010-03-04 19:46:16 +01:00
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format <<= 1;
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2010-03-04 19:46:13 +01:00
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break;
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}
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2018-03-21 01:03:59 +01:00
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case UAC_VERSION_3: {
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struct uac3_as_header_descriptor *as = _fmt;
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sample_width = as->bBitResolution;
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sample_bytes = as->bSubslotSize;
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if (format & UAC3_FORMAT_TYPE_I_RAW_DATA)
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pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL;
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format <<= 1;
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break;
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}
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2010-03-04 19:46:13 +01:00
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}
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2019-02-17 23:17:21 +01:00
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fp->fmt_bits = sample_width;
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2013-03-17 13:07:25 +01:00
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if ((pcm_formats == 0) &&
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(format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) {
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2010-03-04 19:46:16 +01:00
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/* some devices don't define this correctly... */
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2014-02-26 13:02:17 +01:00
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usb_audio_info(chip, "%u:%d : format type 0 is detected, processed as PCM\n",
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fp->iface, fp->altsetting);
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2010-03-04 19:46:16 +01:00
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format = 1 << UAC_FORMAT_TYPE_I_PCM;
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}
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if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) {
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2015-04-21 04:23:57 +02:00
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if (((chip->usb_id == USB_ID(0x0582, 0x0016)) ||
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/* Edirol SD-90 */
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(chip->usb_id == USB_ID(0x0582, 0x000c))) &&
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/* Roland SC-D70 */
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2011-01-10 16:30:54 +01:00
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sample_width == 24 && sample_bytes == 2)
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sample_bytes = 3;
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else if (sample_width > sample_bytes * 8) {
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2014-02-26 13:02:17 +01:00
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usb_audio_info(chip, "%u:%d : sample bitwidth %d in over sample bytes %d\n",
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fp->iface, fp->altsetting,
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sample_width, sample_bytes);
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2010-03-04 19:46:13 +01:00
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}
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/* check the format byte size */
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switch (sample_bytes) {
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case 1:
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2010-03-04 19:46:16 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_S8;
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2010-03-04 19:46:13 +01:00
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break;
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case 2:
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if (snd_usb_is_big_endian_format(chip, fp))
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2010-03-04 19:46:16 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_S16_BE; /* grrr, big endian!! */
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2010-03-04 19:46:13 +01:00
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else
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2010-03-04 19:46:16 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_S16_LE;
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2010-03-04 19:46:13 +01:00
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break;
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case 3:
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if (snd_usb_is_big_endian_format(chip, fp))
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2010-03-04 19:46:16 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_S24_3BE; /* grrr, big endian!! */
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2010-03-04 19:46:13 +01:00
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else
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2010-03-04 19:46:16 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_S24_3LE;
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2010-03-04 19:46:13 +01:00
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break;
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case 4:
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2010-03-04 19:46:16 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_S32_LE;
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2010-03-04 19:46:13 +01:00
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break;
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default:
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2014-02-26 13:02:17 +01:00
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usb_audio_info(chip,
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"%u:%d : unsupported sample bitwidth %d in %d bytes\n",
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fp->iface, fp->altsetting,
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sample_width, sample_bytes);
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2010-03-04 19:46:13 +01:00
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break;
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}
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2010-03-04 19:46:16 +01:00
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}
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if (format & (1 << UAC_FORMAT_TYPE_I_PCM8)) {
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2010-03-04 19:46:13 +01:00
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/* Dallas DS4201 workaround: it advertises U8 format, but really
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supports S8. */
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if (chip->usb_id == USB_ID(0x04fa, 0x4201))
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2010-03-04 19:46:16 +01:00
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pcm_formats |= SNDRV_PCM_FMTBIT_S8;
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else
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pcm_formats |= SNDRV_PCM_FMTBIT_U8;
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}
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if (format & (1 << UAC_FORMAT_TYPE_I_IEEE_FLOAT)) {
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pcm_formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
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}
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if (format & (1 << UAC_FORMAT_TYPE_I_ALAW)) {
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pcm_formats |= SNDRV_PCM_FMTBIT_A_LAW;
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}
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if (format & (1 << UAC_FORMAT_TYPE_I_MULAW)) {
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pcm_formats |= SNDRV_PCM_FMTBIT_MU_LAW;
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}
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if (format & ~0x3f) {
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2014-02-26 13:02:17 +01:00
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usb_audio_info(chip,
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2018-03-21 01:03:59 +01:00
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"%u:%d : unsupported format bits %#llx\n",
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2014-02-26 13:02:17 +01:00
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fp->iface, fp->altsetting, format);
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2010-03-04 19:46:13 +01:00
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}
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2013-04-16 18:01:40 +02:00
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pcm_formats |= snd_usb_interface_dsd_format_quirks(chip, fp, sample_bytes);
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2010-03-04 19:46:16 +01:00
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return pcm_formats;
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2010-03-04 19:46:13 +01:00
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}
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/*
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* parse the format descriptor and stores the possible sample rates
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* on the audioformat table (audio class v1).
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*
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* @dev: usb device
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* @fp: audioformat record
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* @fmt: the format descriptor
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* @offset: the start offset of descriptor pointing the rate type
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* (7 for type I and II, 8 for type II)
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*/
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static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp,
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unsigned char *fmt, int offset)
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{
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int nr_rates = fmt[offset];
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if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) {
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2014-02-26 13:02:17 +01:00
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usb_audio_err(chip,
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"%u:%d : invalid UAC_FORMAT_TYPE desc\n",
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fp->iface, fp->altsetting);
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2012-11-21 10:55:56 +01:00
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return -EINVAL;
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2010-03-04 19:46:13 +01:00
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}
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if (nr_rates) {
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/*
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* build the rate table and bitmap flags
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*/
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int r, idx;
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treewide: kmalloc() -> kmalloc_array()
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This
patch replaces cases of:
kmalloc(a * b, gfp)
with:
kmalloc_array(a * b, gfp)
as well as handling cases of:
kmalloc(a * b * c, gfp)
with:
kmalloc(array3_size(a, b, c), gfp)
as it's slightly less ugly than:
kmalloc_array(array_size(a, b), c, gfp)
This does, however, attempt to ignore constant size factors like:
kmalloc(4 * 1024, gfp)
though any constants defined via macros get caught up in the conversion.
Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.
The tools/ directory was manually excluded, since it has its own
implementation of kmalloc().
The Coccinelle script used for this was:
// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@
(
kmalloc(
- (sizeof(TYPE)) * E
+ sizeof(TYPE) * E
, ...)
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kmalloc(
- (sizeof(THING)) * E
+ sizeof(THING) * E
, ...)
)
// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@
(
kmalloc(
- sizeof(u8) * (COUNT)
+ COUNT
, ...)
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kmalloc(
- sizeof(__u8) * (COUNT)
+ COUNT
, ...)
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kmalloc(
- sizeof(char) * (COUNT)
+ COUNT
, ...)
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kmalloc(
- sizeof(unsigned char) * (COUNT)
+ COUNT
, ...)
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kmalloc(
- sizeof(u8) * COUNT
+ COUNT
, ...)
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kmalloc(
- sizeof(__u8) * COUNT
+ COUNT
, ...)
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kmalloc(
- sizeof(char) * COUNT
+ COUNT
, ...)
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kmalloc(
- sizeof(unsigned char) * COUNT
+ COUNT
, ...)
)
// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@
(
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (COUNT_ID)
+ COUNT_ID, sizeof(TYPE)
, ...)
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- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * COUNT_ID
+ COUNT_ID, sizeof(TYPE)
, ...)
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- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (COUNT_CONST)
+ COUNT_CONST, sizeof(TYPE)
, ...)
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- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * COUNT_CONST
+ COUNT_CONST, sizeof(TYPE)
, ...)
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- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (COUNT_ID)
+ COUNT_ID, sizeof(THING)
, ...)
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- kmalloc
+ kmalloc_array
(
- sizeof(THING) * COUNT_ID
+ COUNT_ID, sizeof(THING)
, ...)
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- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (COUNT_CONST)
+ COUNT_CONST, sizeof(THING)
, ...)
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- kmalloc
+ kmalloc_array
(
- sizeof(THING) * COUNT_CONST
+ COUNT_CONST, sizeof(THING)
, ...)
)
// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@
- kmalloc
+ kmalloc_array
(
- SIZE * COUNT
+ COUNT, SIZE
, ...)
// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@
(
kmalloc(
- sizeof(TYPE) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
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kmalloc(
- sizeof(TYPE) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(THING) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
)
// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@
(
kmalloc(
- sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kmalloc(
- sizeof(THING1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(THING1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
)
// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@
(
kmalloc(
- (COUNT) * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
)
// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@
(
kmalloc(C1 * C2 * C3, ...)
|
kmalloc(
- (E1) * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- (E1) * (E2) * E3
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- (E1) * (E2) * (E3)
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- E1 * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
)
// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@
(
kmalloc(sizeof(THING) * C2, ...)
|
kmalloc(sizeof(TYPE) * C2, ...)
|
kmalloc(C1 * C2 * C3, ...)
|
kmalloc(C1 * C2, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (E2)
+ E2, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * E2
+ E2, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (E2)
+ E2, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * E2
+ E2, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- (E1) * E2
+ E1, E2
, ...)
|
- kmalloc
+ kmalloc_array
(
- (E1) * (E2)
+ E1, E2
, ...)
|
- kmalloc
+ kmalloc_array
(
- E1 * E2
+ E1, E2
, ...)
)
Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 22:55:00 +02:00
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fp->rate_table = kmalloc_array(nr_rates, sizeof(int),
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GFP_KERNEL);
|
2016-08-21 04:17:36 +02:00
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if (fp->rate_table == NULL)
|
2012-11-21 10:55:56 +01:00
|
|
|
return -ENOMEM;
|
2010-03-04 19:46:13 +01:00
|
|
|
|
|
|
|
fp->nr_rates = 0;
|
|
|
|
fp->rate_min = fp->rate_max = 0;
|
|
|
|
for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) {
|
|
|
|
unsigned int rate = combine_triple(&fmt[idx]);
|
|
|
|
if (!rate)
|
|
|
|
continue;
|
|
|
|
/* C-Media CM6501 mislabels its 96 kHz altsetting */
|
2011-04-28 16:18:40 +02:00
|
|
|
/* Terratec Aureon 7.1 USB C-Media 6206, too */
|
2010-03-04 19:46:13 +01:00
|
|
|
if (rate == 48000 && nr_rates == 1 &&
|
|
|
|
(chip->usb_id == USB_ID(0x0d8c, 0x0201) ||
|
2011-04-28 16:18:40 +02:00
|
|
|
chip->usb_id == USB_ID(0x0d8c, 0x0102) ||
|
|
|
|
chip->usb_id == USB_ID(0x0ccd, 0x00b1)) &&
|
2010-03-04 19:46:13 +01:00
|
|
|
fp->altsetting == 5 && fp->maxpacksize == 392)
|
|
|
|
rate = 96000;
|
2014-01-14 13:42:57 +01:00
|
|
|
/* Creative VF0420/VF0470 Live Cams report 16 kHz instead of 8kHz */
|
|
|
|
if (rate == 16000 &&
|
|
|
|
(chip->usb_id == USB_ID(0x041e, 0x4064) ||
|
|
|
|
chip->usb_id == USB_ID(0x041e, 0x4068)))
|
2010-03-04 19:46:13 +01:00
|
|
|
rate = 8000;
|
|
|
|
|
|
|
|
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++;
|
|
|
|
}
|
|
|
|
if (!fp->nr_rates) {
|
|
|
|
hwc_debug("All rates were zero. Skipping format!\n");
|
2012-11-21 10:55:56 +01:00
|
|
|
return -EINVAL;
|
2010-03-04 19:46:13 +01:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* continuous rates */
|
|
|
|
fp->rates = SNDRV_PCM_RATE_CONTINUOUS;
|
|
|
|
fp->rate_min = combine_triple(&fmt[offset + 1]);
|
|
|
|
fp->rate_max = combine_triple(&fmt[offset + 4]);
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2020-04-18 19:58:15 +02:00
|
|
|
/*
|
|
|
|
* Many Focusrite devices supports a limited set of sampling rates per
|
|
|
|
* altsetting. Maximum rate is exposed in the last 4 bytes of Format Type
|
|
|
|
* descriptor which has a non-standard bLength = 10.
|
|
|
|
*/
|
|
|
|
static bool focusrite_valid_sample_rate(struct snd_usb_audio *chip,
|
|
|
|
struct audioformat *fp,
|
|
|
|
unsigned int rate)
|
|
|
|
{
|
|
|
|
struct usb_interface *iface;
|
|
|
|
struct usb_host_interface *alts;
|
|
|
|
unsigned char *fmt;
|
|
|
|
unsigned int max_rate;
|
|
|
|
|
|
|
|
iface = usb_ifnum_to_if(chip->dev, fp->iface);
|
|
|
|
if (!iface)
|
|
|
|
return true;
|
|
|
|
|
|
|
|
alts = &iface->altsetting[fp->altset_idx];
|
|
|
|
fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen,
|
|
|
|
NULL, UAC_FORMAT_TYPE);
|
|
|
|
if (!fmt)
|
|
|
|
return true;
|
|
|
|
|
|
|
|
if (fmt[0] == 10) { /* bLength */
|
|
|
|
max_rate = combine_quad(&fmt[6]);
|
|
|
|
|
|
|
|
/* Validate max rate */
|
|
|
|
if (max_rate != 48000 &&
|
|
|
|
max_rate != 96000 &&
|
|
|
|
max_rate != 192000 &&
|
|
|
|
max_rate != 384000) {
|
|
|
|
|
|
|
|
usb_audio_info(chip,
|
|
|
|
"%u:%d : unexpected max rate: %u\n",
|
|
|
|
fp->iface, fp->altsetting, max_rate);
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return rate <= max_rate;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2010-06-11 17:46:33 +02:00
|
|
|
/*
|
|
|
|
* Helper function to walk the array of sample rate triplets reported by
|
|
|
|
* the device. The problem is that we need to parse whole array first to
|
|
|
|
* get to know how many sample rates we have to expect.
|
|
|
|
* Then fp->rate_table can be allocated and filled.
|
|
|
|
*/
|
2014-02-26 13:02:17 +01:00
|
|
|
static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip,
|
|
|
|
struct audioformat *fp, int nr_triplets,
|
2010-06-11 17:46:33 +02:00
|
|
|
const unsigned char *data)
|
|
|
|
{
|
|
|
|
int i, nr_rates = 0;
|
|
|
|
|
|
|
|
fp->rates = fp->rate_min = fp->rate_max = 0;
|
|
|
|
|
|
|
|
for (i = 0; i < nr_triplets; i++) {
|
|
|
|
int min = combine_quad(&data[2 + 12 * i]);
|
|
|
|
int max = combine_quad(&data[6 + 12 * i]);
|
|
|
|
int res = combine_quad(&data[10 + 12 * i]);
|
2012-01-08 15:02:52 +01:00
|
|
|
unsigned int rate;
|
2010-06-11 17:46:33 +02:00
|
|
|
|
|
|
|
if ((max < 0) || (min < 0) || (res < 0) || (max < min))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* for ranges with res == 1, we announce a continuous sample
|
|
|
|
* rate range, and this function should return 0 for no further
|
|
|
|
* parsing.
|
|
|
|
*/
|
|
|
|
if (res == 1) {
|
|
|
|
fp->rate_min = min;
|
|
|
|
fp->rate_max = max;
|
|
|
|
fp->rates = SNDRV_PCM_RATE_CONTINUOUS;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (rate = min; rate <= max; rate += res) {
|
2020-04-18 19:58:15 +02:00
|
|
|
/* Filter out invalid rates on Focusrite devices */
|
|
|
|
if (USB_ID_VENDOR(chip->usb_id) == 0x1235 &&
|
|
|
|
!focusrite_valid_sample_rate(chip, fp, rate))
|
|
|
|
goto skip_rate;
|
|
|
|
|
2010-06-11 17:46:33 +02:00
|
|
|
if (fp->rate_table)
|
|
|
|
fp->rate_table[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);
|
|
|
|
|
|
|
|
nr_rates++;
|
2012-02-14 11:18:48 +01:00
|
|
|
if (nr_rates >= MAX_NR_RATES) {
|
2014-02-26 13:02:17 +01:00
|
|
|
usb_audio_err(chip, "invalid uac2 rates\n");
|
2012-01-08 15:02:52 +01:00
|
|
|
break;
|
|
|
|
}
|
2010-06-11 17:46:33 +02:00
|
|
|
|
2020-04-18 19:58:15 +02:00
|
|
|
skip_rate:
|
2010-06-11 17:46:33 +02:00
|
|
|
/* avoid endless loop */
|
|
|
|
if (res == 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return nr_rates;
|
|
|
|
}
|
|
|
|
|
2019-07-07 10:27:34 +02:00
|
|
|
/* Line6 Helix series don't support the UAC2_CS_RANGE usb function
|
|
|
|
* call. Return a static table of known clock rates.
|
|
|
|
*/
|
|
|
|
static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip,
|
|
|
|
struct audioformat *fp)
|
|
|
|
{
|
|
|
|
switch (chip->usb_id) {
|
|
|
|
case USB_ID(0x0E41, 0x4241): /* Line6 Helix */
|
|
|
|
case USB_ID(0x0E41, 0x4242): /* Line6 Helix Rack */
|
|
|
|
case USB_ID(0x0E41, 0x4244): /* Line6 Helix LT */
|
|
|
|
case USB_ID(0x0E41, 0x4246): /* Line6 HX-Stomp */
|
2020-01-25 16:09:17 +01:00
|
|
|
case USB_ID(0x0E41, 0x4248): /* Line6 Helix >= fw 2.82 */
|
|
|
|
case USB_ID(0x0E41, 0x4249): /* Line6 Helix Rack >= fw 2.82 */
|
|
|
|
case USB_ID(0x0E41, 0x424a): /* Line6 Helix LT >= fw 2.82 */
|
2019-07-07 10:27:34 +02:00
|
|
|
/* supported rates: 48Khz */
|
|
|
|
kfree(fp->rate_table);
|
|
|
|
fp->rate_table = kmalloc(sizeof(int), GFP_KERNEL);
|
|
|
|
if (!fp->rate_table)
|
|
|
|
return -ENOMEM;
|
|
|
|
fp->nr_rates = 1;
|
|
|
|
fp->rate_min = 48000;
|
|
|
|
fp->rate_max = 48000;
|
|
|
|
fp->rates = SNDRV_PCM_RATE_48000;
|
|
|
|
fp->rate_table[0] = 48000;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2010-03-04 19:46:13 +01:00
|
|
|
/*
|
|
|
|
* parse the format descriptor and stores the possible sample rates
|
2018-03-21 01:03:59 +01:00
|
|
|
* on the audioformat table (audio class v2 and v3).
|
2010-03-04 19:46:13 +01:00
|
|
|
*/
|
2018-03-21 01:03:59 +01:00
|
|
|
static int parse_audio_format_rates_v2v3(struct snd_usb_audio *chip,
|
2010-06-16 17:57:31 +02:00
|
|
|
struct audioformat *fp)
|
2010-03-04 19:46:13 +01:00
|
|
|
{
|
|
|
|
struct usb_device *dev = chip->dev;
|
|
|
|
unsigned char tmp[2], *data;
|
2019-07-07 10:27:34 +02:00
|
|
|
int nr_triplets, data_size, ret = 0, ret_l6;
|
2020-02-13 00:54:50 +01:00
|
|
|
int clock = snd_usb_clock_find_source(chip, fp, false);
|
2010-03-04 19:46:13 +01:00
|
|
|
|
2010-06-11 17:34:19 +02:00
|
|
|
if (clock < 0) {
|
2014-02-26 13:02:17 +01:00
|
|
|
dev_err(&dev->dev,
|
|
|
|
"%s(): unable to find clock source (clock %d)\n",
|
2010-06-11 17:34:19 +02:00
|
|
|
__func__, clock);
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2010-03-04 19:46:13 +01:00
|
|
|
/* 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,
|
2010-06-11 17:34:20 +02:00
|
|
|
UAC2_CS_CONTROL_SAM_FREQ << 8,
|
|
|
|
snd_usb_ctrl_intf(chip) | (clock << 8),
|
2011-09-26 21:15:27 +02:00
|
|
|
tmp, sizeof(tmp));
|
2010-03-04 19:46:13 +01:00
|
|
|
|
|
|
|
if (ret < 0) {
|
2019-07-07 10:27:34 +02:00
|
|
|
/* line6 helix devices don't support UAC2_CS_CONTROL_SAM_FREQ call */
|
|
|
|
ret_l6 = line6_parse_audio_format_rates_quirk(chip, fp);
|
|
|
|
if (ret_l6 == -ENODEV) {
|
|
|
|
/* no line6 device found continue showing the error */
|
|
|
|
dev_err(&dev->dev,
|
|
|
|
"%s(): unable to retrieve number of sample rates (clock %d)\n",
|
|
|
|
__func__, clock);
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
if (ret_l6 == 0) {
|
|
|
|
dev_info(&dev->dev,
|
|
|
|
"%s(): unable to retrieve number of sample rates: set it to a predefined value (clock %d).\n",
|
2010-05-31 14:51:31 +02:00
|
|
|
__func__, clock);
|
2019-07-07 10:27:34 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
ret = ret_l6;
|
2010-03-04 19:46:13 +01:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2010-06-11 17:46:33 +02:00
|
|
|
nr_triplets = (tmp[1] << 8) | tmp[0];
|
|
|
|
data_size = 2 + 12 * nr_triplets;
|
2010-03-04 19:46:13 +01:00
|
|
|
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,
|
2010-05-31 14:51:31 +02:00
|
|
|
USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
|
2010-06-11 17:34:20 +02:00
|
|
|
UAC2_CS_CONTROL_SAM_FREQ << 8,
|
|
|
|
snd_usb_ctrl_intf(chip) | (clock << 8),
|
2011-09-26 21:15:27 +02:00
|
|
|
data, data_size);
|
2010-03-04 19:46:13 +01:00
|
|
|
|
|
|
|
if (ret < 0) {
|
2014-02-26 13:02:17 +01:00
|
|
|
dev_err(&dev->dev,
|
|
|
|
"%s(): unable to retrieve sample rate range (clock %d)\n",
|
2010-05-31 14:51:31 +02:00
|
|
|
__func__, clock);
|
2010-03-04 19:46:13 +01:00
|
|
|
ret = -EINVAL;
|
|
|
|
goto err_free;
|
|
|
|
}
|
|
|
|
|
2010-06-11 17:46:33 +02:00
|
|
|
/* Call the triplet parser, and make sure fp->rate_table is NULL.
|
|
|
|
* We just use the return value to know how many sample rates we
|
|
|
|
* will have to deal with. */
|
|
|
|
kfree(fp->rate_table);
|
|
|
|
fp->rate_table = NULL;
|
2014-02-26 13:02:17 +01:00
|
|
|
fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data);
|
2010-06-11 17:46:33 +02:00
|
|
|
|
|
|
|
if (fp->nr_rates == 0) {
|
|
|
|
/* SNDRV_PCM_RATE_CONTINUOUS */
|
|
|
|
ret = 0;
|
|
|
|
goto err_free;
|
|
|
|
}
|
|
|
|
|
treewide: kmalloc() -> kmalloc_array()
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This
patch replaces cases of:
kmalloc(a * b, gfp)
with:
kmalloc_array(a * b, gfp)
as well as handling cases of:
kmalloc(a * b * c, gfp)
with:
kmalloc(array3_size(a, b, c), gfp)
as it's slightly less ugly than:
kmalloc_array(array_size(a, b), c, gfp)
This does, however, attempt to ignore constant size factors like:
kmalloc(4 * 1024, gfp)
though any constants defined via macros get caught up in the conversion.
Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.
The tools/ directory was manually excluded, since it has its own
implementation of kmalloc().
The Coccinelle script used for this was:
// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@
(
kmalloc(
- (sizeof(TYPE)) * E
+ sizeof(TYPE) * E
, ...)
|
kmalloc(
- (sizeof(THING)) * E
+ sizeof(THING) * E
, ...)
)
// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@
(
kmalloc(
- sizeof(u8) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(__u8) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(char) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(unsigned char) * (COUNT)
+ COUNT
, ...)
|
kmalloc(
- sizeof(u8) * COUNT
+ COUNT
, ...)
|
kmalloc(
- sizeof(__u8) * COUNT
+ COUNT
, ...)
|
kmalloc(
- sizeof(char) * COUNT
+ COUNT
, ...)
|
kmalloc(
- sizeof(unsigned char) * COUNT
+ COUNT
, ...)
)
// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@
(
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (COUNT_ID)
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * COUNT_ID
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (COUNT_CONST)
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * COUNT_CONST
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (COUNT_ID)
+ COUNT_ID, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * COUNT_ID
+ COUNT_ID, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (COUNT_CONST)
+ COUNT_CONST, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * COUNT_CONST
+ COUNT_CONST, sizeof(THING)
, ...)
)
// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@
- kmalloc
+ kmalloc_array
(
- SIZE * COUNT
+ COUNT, SIZE
, ...)
// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@
(
kmalloc(
- sizeof(TYPE) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(TYPE) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kmalloc(
- sizeof(THING) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kmalloc(
- sizeof(THING) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
)
// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@
(
kmalloc(
- sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kmalloc(
- sizeof(THING1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(THING1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
|
kmalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
)
// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@
(
kmalloc(
- (COUNT) * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- (COUNT) * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kmalloc(
- COUNT * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
)
// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@
(
kmalloc(C1 * C2 * C3, ...)
|
kmalloc(
- (E1) * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- (E1) * (E2) * E3
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- (E1) * (E2) * (E3)
+ array3_size(E1, E2, E3)
, ...)
|
kmalloc(
- E1 * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
)
// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@
(
kmalloc(sizeof(THING) * C2, ...)
|
kmalloc(sizeof(TYPE) * C2, ...)
|
kmalloc(C1 * C2 * C3, ...)
|
kmalloc(C1 * C2, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * (E2)
+ E2, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(TYPE) * E2
+ E2, sizeof(TYPE)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * (E2)
+ E2, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- sizeof(THING) * E2
+ E2, sizeof(THING)
, ...)
|
- kmalloc
+ kmalloc_array
(
- (E1) * E2
+ E1, E2
, ...)
|
- kmalloc
+ kmalloc_array
(
- (E1) * (E2)
+ E1, E2
, ...)
|
- kmalloc
+ kmalloc_array
(
- E1 * E2
+ E1, E2
, ...)
)
Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 22:55:00 +02:00
|
|
|
fp->rate_table = kmalloc_array(fp->nr_rates, sizeof(int), GFP_KERNEL);
|
2010-03-04 19:46:13 +01:00
|
|
|
if (!fp->rate_table) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto err_free;
|
|
|
|
}
|
|
|
|
|
2010-06-11 17:46:33 +02:00
|
|
|
/* Call the triplet parser again, but this time, fp->rate_table is
|
|
|
|
* allocated, so the rates will be stored */
|
2014-02-26 13:02:17 +01:00
|
|
|
parse_uac2_sample_rate_range(chip, fp, nr_triplets, data);
|
2010-03-04 19:46:13 +01:00
|
|
|
|
|
|
|
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,
|
2018-03-21 01:03:59 +01:00
|
|
|
struct audioformat *fp, u64 format,
|
|
|
|
void *_fmt)
|
2010-03-04 19:46:13 +01:00
|
|
|
{
|
2013-04-23 01:00:41 +02:00
|
|
|
snd_pcm_format_t pcm_format;
|
2018-03-21 01:03:59 +01:00
|
|
|
unsigned int fmt_type;
|
2013-04-23 01:00:41 +02:00
|
|
|
int ret;
|
2010-03-04 19:46:13 +01:00
|
|
|
|
2018-03-21 01:03:59 +01:00
|
|
|
switch (fp->protocol) {
|
|
|
|
default:
|
|
|
|
case UAC_VERSION_1:
|
|
|
|
case UAC_VERSION_2: {
|
|
|
|
struct uac_format_type_i_continuous_descriptor *fmt = _fmt;
|
|
|
|
|
|
|
|
fmt_type = fmt->bFormatType;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case UAC_VERSION_3: {
|
|
|
|
/* fp->fmt_type is already set in this case */
|
|
|
|
fmt_type = fp->fmt_type;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fmt_type == UAC_FORMAT_TYPE_III) {
|
2010-03-04 19:46:13 +01:00
|
|
|
/* FIXME: the format type is really IECxxx
|
|
|
|
* but we give normal PCM format to get the existing
|
|
|
|
* apps working...
|
|
|
|
*/
|
|
|
|
switch (chip->usb_id) {
|
|
|
|
|
|
|
|
case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
|
|
|
|
if (chip->setup == 0x00 &&
|
|
|
|
fp->altsetting == 6)
|
|
|
|
pcm_format = SNDRV_PCM_FORMAT_S16_BE;
|
|
|
|
else
|
|
|
|
pcm_format = SNDRV_PCM_FORMAT_S16_LE;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
pcm_format = SNDRV_PCM_FORMAT_S16_LE;
|
|
|
|
}
|
2013-04-23 01:00:41 +02:00
|
|
|
fp->formats = pcm_format_to_bits(pcm_format);
|
2010-03-04 19:46:13 +01:00
|
|
|
} else {
|
2018-03-21 01:03:59 +01:00
|
|
|
fp->formats = parse_audio_format_i_type(chip, fp, format, _fmt);
|
2010-03-04 19:46:16 +01:00
|
|
|
if (!fp->formats)
|
2012-11-21 10:55:56 +01:00
|
|
|
return -EINVAL;
|
2010-03-04 19:46:13 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/* 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.
|
|
|
|
*/
|
2013-01-31 21:39:17 +01:00
|
|
|
switch (fp->protocol) {
|
2010-09-03 10:53:11 +02:00
|
|
|
default:
|
2018-03-21 01:03:59 +01:00
|
|
|
case UAC_VERSION_1: {
|
|
|
|
struct uac_format_type_i_continuous_descriptor *fmt = _fmt;
|
|
|
|
|
2010-03-04 19:46:13 +01:00
|
|
|
fp->channels = fmt->bNrChannels;
|
2010-05-26 18:11:36 +02:00
|
|
|
ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7);
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
2018-03-21 01:03:59 +01:00
|
|
|
}
|
2010-03-04 19:46:13 +01:00
|
|
|
case UAC_VERSION_2:
|
2018-03-21 01:03:59 +01:00
|
|
|
case UAC_VERSION_3: {
|
2010-03-04 19:46:13 +01:00
|
|
|
/* fp->channels is already set in this case */
|
2018-03-21 01:03:59 +01:00
|
|
|
ret = parse_audio_format_rates_v2v3(chip, fp);
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
|
|
|
}
|
2018-03-21 01:03:59 +01:00
|
|
|
}
|
2010-03-04 19:46:13 +01:00
|
|
|
|
|
|
|
if (fp->channels < 1) {
|
2014-02-26 13:02:17 +01:00
|
|
|
usb_audio_err(chip,
|
|
|
|
"%u:%d : invalid channels %d\n",
|
|
|
|
fp->iface, fp->altsetting, fp->channels);
|
2012-11-21 10:55:56 +01:00
|
|
|
return -EINVAL;
|
2010-03-04 19:46:13 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* parse the format type II descriptor
|
|
|
|
*/
|
|
|
|
static int parse_audio_format_ii(struct snd_usb_audio *chip,
|
|
|
|
struct audioformat *fp,
|
2018-03-21 01:03:59 +01:00
|
|
|
u64 format, void *_fmt)
|
2010-03-04 19:46:13 +01:00
|
|
|
{
|
|
|
|
int brate, framesize, ret;
|
|
|
|
|
|
|
|
switch (format) {
|
|
|
|
case UAC_FORMAT_TYPE_II_AC3:
|
|
|
|
/* FIXME: there is no AC3 format defined yet */
|
2010-03-04 19:46:15 +01:00
|
|
|
// fp->formats = SNDRV_PCM_FMTBIT_AC3;
|
|
|
|
fp->formats = SNDRV_PCM_FMTBIT_U8; /* temporary hack to receive byte streams */
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
|
|
|
case UAC_FORMAT_TYPE_II_MPEG:
|
2010-03-04 19:46:15 +01:00
|
|
|
fp->formats = SNDRV_PCM_FMTBIT_MPEG;
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
|
|
|
default:
|
2014-02-26 13:02:17 +01:00
|
|
|
usb_audio_info(chip,
|
2018-03-21 01:03:59 +01:00
|
|
|
"%u:%d : unknown format tag %#llx is detected. processed as MPEG.\n",
|
2014-02-26 13:02:17 +01:00
|
|
|
fp->iface, fp->altsetting, format);
|
2010-03-04 19:46:15 +01:00
|
|
|
fp->formats = SNDRV_PCM_FMTBIT_MPEG;
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
fp->channels = 1;
|
|
|
|
|
2013-01-31 21:39:17 +01:00
|
|
|
switch (fp->protocol) {
|
2010-09-03 10:53:11 +02:00
|
|
|
default:
|
2010-03-04 19:46:13 +01:00
|
|
|
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);
|
2014-02-26 13:02:17 +01:00
|
|
|
usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
|
2010-03-04 19:46:13 +01:00
|
|
|
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);
|
2014-02-26 13:02:17 +01:00
|
|
|
usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
|
2010-03-04 19:46:13 +01:00
|
|
|
fp->frame_size = framesize;
|
2018-03-21 01:03:59 +01:00
|
|
|
ret = parse_audio_format_rates_v2v3(chip, fp);
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-03-17 13:07:24 +01:00
|
|
|
int snd_usb_parse_audio_format(struct snd_usb_audio *chip,
|
2018-03-21 01:03:59 +01:00
|
|
|
struct audioformat *fp, u64 format,
|
2013-03-17 13:07:24 +01:00
|
|
|
struct uac_format_type_i_continuous_descriptor *fmt,
|
2013-01-31 21:39:17 +01:00
|
|
|
int stream)
|
2010-03-04 19:46:13 +01:00
|
|
|
{
|
|
|
|
int err;
|
|
|
|
|
2010-05-26 18:11:36 +02:00
|
|
|
switch (fmt->bFormatType) {
|
2010-03-04 19:46:13 +01:00
|
|
|
case UAC_FORMAT_TYPE_I:
|
|
|
|
case UAC_FORMAT_TYPE_III:
|
2013-01-31 21:39:17 +01:00
|
|
|
err = parse_audio_format_i(chip, fp, format, fmt);
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
|
|
|
case UAC_FORMAT_TYPE_II:
|
2013-01-31 21:39:17 +01:00
|
|
|
err = parse_audio_format_ii(chip, fp, format, fmt);
|
2010-03-04 19:46:13 +01:00
|
|
|
break;
|
|
|
|
default:
|
2014-02-26 13:02:17 +01:00
|
|
|
usb_audio_info(chip,
|
|
|
|
"%u:%d : format type %d is not supported yet\n",
|
|
|
|
fp->iface, fp->altsetting,
|
|
|
|
fmt->bFormatType);
|
2010-05-26 18:11:37 +02:00
|
|
|
return -ENOTSUPP;
|
2010-03-04 19:46:13 +01:00
|
|
|
}
|
2010-05-26 18:11:36 +02:00
|
|
|
fp->fmt_type = fmt->bFormatType;
|
2010-03-04 19:46:13 +01:00
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
#if 1
|
|
|
|
/* FIXME: temporary hack for extigy/audigy 2 nx/zs */
|
|
|
|
/* extigy apparently supports sample rates other than 48k
|
|
|
|
* but not in ordinary way. so we enable only 48k atm.
|
|
|
|
*/
|
|
|
|
if (chip->usb_id == USB_ID(0x041e, 0x3000) ||
|
|
|
|
chip->usb_id == USB_ID(0x041e, 0x3020) ||
|
|
|
|
chip->usb_id == USB_ID(0x041e, 0x3061)) {
|
2010-05-26 18:11:36 +02:00
|
|
|
if (fmt->bFormatType == UAC_FORMAT_TYPE_I &&
|
2010-03-04 19:46:13 +01:00
|
|
|
fp->rates != SNDRV_PCM_RATE_48000 &&
|
|
|
|
fp->rates != SNDRV_PCM_RATE_96000)
|
2010-05-26 18:11:37 +02:00
|
|
|
return -ENOTSUPP;
|
2010-03-04 19:46:13 +01:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-03-21 01:03:59 +01:00
|
|
|
int snd_usb_parse_audio_format_v3(struct snd_usb_audio *chip,
|
|
|
|
struct audioformat *fp,
|
|
|
|
struct uac3_as_header_descriptor *as,
|
|
|
|
int stream)
|
|
|
|
{
|
|
|
|
u64 format = le64_to_cpu(as->bmFormats);
|
|
|
|
int err;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Type I format bits are D0..D6
|
|
|
|
* This test works because type IV is not supported
|
|
|
|
*/
|
|
|
|
if (format & 0x7f)
|
|
|
|
fp->fmt_type = UAC_FORMAT_TYPE_I;
|
|
|
|
else
|
|
|
|
fp->fmt_type = UAC_FORMAT_TYPE_III;
|
|
|
|
|
|
|
|
err = parse_audio_format_i(chip, fp, format, as);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|