^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/usb/audio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/usb/audio-v2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/usb/audio-v3.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <sound/pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <sound/control.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <sound/tlv.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "usbaudio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "card.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "proc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "quirks.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "endpoint.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "pcm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include "helper.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "clock.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "stream.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "power.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "media.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static void audioformat_free(struct audioformat *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) list_del(&fp->list); /* unlink for avoiding double-free */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) kfree(fp->rate_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) kfree(fp->chmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) kfree(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * free a substream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static void free_substream(struct snd_usb_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct audioformat *fp, *n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if (!subs->num_formats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return; /* not initialized */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) list_for_each_entry_safe(fp, n, &subs->fmt_list, list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) audioformat_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) kfree(subs->rate_list.list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) kfree(subs->str_pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) snd_media_stream_delete(subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * free a usb stream instance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) free_substream(&stream->substream[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) free_substream(&stream->substream[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) list_del(&stream->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) kfree(stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct snd_usb_stream *stream = pcm->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct snd_usb_audio *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (stream) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) mutex_lock(&stream->chip->dev_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) chip = stream->chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) stream->pcm = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) snd_usb_audio_stream_free(stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) mutex_unlock(&chip->dev_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * initialize the substream instance.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static void snd_usb_init_substream(struct snd_usb_stream *as,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) int stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct audioformat *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct snd_usb_power_domain *pd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct snd_usb_substream *subs = &as->substream[stream];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) INIT_LIST_HEAD(&subs->fmt_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) spin_lock_init(&subs->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) subs->stream = as;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) subs->direction = stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) subs->dev = as->chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) subs->txfr_quirk = as->chip->txfr_quirk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) subs->tx_length_quirk = as->chip->tx_length_quirk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) subs->speed = snd_usb_get_speed(subs->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) subs->pkt_offset_adj = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) subs->stream_offset_adj = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) snd_usb_set_pcm_ops(as->pcm, stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) list_add_tail(&fp->list, &subs->fmt_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) subs->formats |= fp->formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) subs->num_formats++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) subs->fmt_type = fp->fmt_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) subs->ep_num = fp->endpoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (fp->channels > subs->channels_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) subs->channels_max = fp->channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (pd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) subs->str_pd = pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) /* Initialize Power Domain to idle status D1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) snd_usb_power_domain_set(subs->stream->chip, pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) UAC3_PD_STATE_D1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) snd_usb_preallocate_buffer(subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) /* kctl callbacks for usb-audio channel maps */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static int usb_chmap_ctl_info(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct snd_ctl_elem_info *uinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct snd_usb_substream *subs = info->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) uinfo->count = subs->channels_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) uinfo->value.integer.min = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) uinfo->value.integer.max = SNDRV_CHMAP_LAST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /* check whether a duplicated entry exists in the audiofmt list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static bool have_dup_chmap(struct snd_usb_substream *subs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) struct audioformat *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct audioformat *prev = fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) list_for_each_entry_continue_reverse(prev, &subs->fmt_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (prev->chmap &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static int usb_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) unsigned int size, unsigned int __user *tlv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct snd_usb_substream *subs = info->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct audioformat *fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) unsigned int __user *dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) int count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (size < 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) size -= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) dst = tlv + 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) list_for_each_entry(fp, &subs->fmt_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int i, ch_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (!fp->chmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (have_dup_chmap(subs, fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) /* copy the entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) ch_bytes = fp->chmap->channels * 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (size < 8 + ch_bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) put_user(ch_bytes, dst + 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) dst += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) for (i = 0; i < fp->chmap->channels; i++, dst++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (put_user(fp->chmap->map[i], dst))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) count += 8 + ch_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) size -= 8 + ch_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) if (put_user(count, tlv + 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static int usb_chmap_ctl_get(struct snd_kcontrol *kcontrol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) struct snd_ctl_elem_value *ucontrol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct snd_usb_substream *subs = info->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct snd_pcm_chmap_elem *chmap = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) int i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) if (subs->cur_audiofmt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) chmap = subs->cur_audiofmt->chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (chmap) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) for (i = 0; i < chmap->channels; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) ucontrol->value.integer.value[i] = chmap->map[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) for (; i < subs->channels_max; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) ucontrol->value.integer.value[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) /* create a chmap kctl assigned to the given USB substream */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static int add_chmap(struct snd_pcm *pcm, int stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct snd_usb_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) struct audioformat *fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) struct snd_pcm_chmap *chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) struct snd_kcontrol *kctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) list_for_each_entry(fp, &subs->fmt_list, list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) if (fp->chmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) goto ok;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) /* no chmap is found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) ok:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) err = snd_pcm_add_chmap_ctls(pcm, stream, NULL, 0, 0, &chmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) /* override handlers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) chmap->private_data = subs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) kctl = chmap->kctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) kctl->info = usb_chmap_ctl_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) kctl->get = usb_chmap_ctl_get;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) kctl->tlv.c = usb_chmap_ctl_tlv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* convert from USB ChannelConfig bits to ALSA chmap element */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) int protocol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) static const unsigned int uac1_maps[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) SNDRV_CHMAP_FL, /* left front */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) SNDRV_CHMAP_FR, /* right front */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) SNDRV_CHMAP_FC, /* center front */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) SNDRV_CHMAP_LFE, /* LFE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) SNDRV_CHMAP_SL, /* left surround */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) SNDRV_CHMAP_SR, /* right surround */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) SNDRV_CHMAP_FLC, /* left of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) SNDRV_CHMAP_FRC, /* right of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) SNDRV_CHMAP_RC, /* surround */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) SNDRV_CHMAP_SL, /* side left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) SNDRV_CHMAP_SR, /* side right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) SNDRV_CHMAP_TC, /* top */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 0 /* terminator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) static const unsigned int uac2_maps[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) SNDRV_CHMAP_FL, /* front left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) SNDRV_CHMAP_FR, /* front right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) SNDRV_CHMAP_FC, /* front center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) SNDRV_CHMAP_LFE, /* LFE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) SNDRV_CHMAP_RL, /* back left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) SNDRV_CHMAP_RR, /* back right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) SNDRV_CHMAP_FLC, /* front left of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) SNDRV_CHMAP_FRC, /* front right of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) SNDRV_CHMAP_RC, /* back center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) SNDRV_CHMAP_SL, /* side left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) SNDRV_CHMAP_SR, /* side right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) SNDRV_CHMAP_TC, /* top center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) SNDRV_CHMAP_TFL, /* top front left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) SNDRV_CHMAP_TFC, /* top front center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) SNDRV_CHMAP_TFR, /* top front right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) SNDRV_CHMAP_TRL, /* top back left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) SNDRV_CHMAP_TRC, /* top back center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) SNDRV_CHMAP_TRR, /* top back right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) SNDRV_CHMAP_TFLC, /* top front left of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) SNDRV_CHMAP_TFRC, /* top front right of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) SNDRV_CHMAP_LLFE, /* left LFE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) SNDRV_CHMAP_RLFE, /* right LFE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) SNDRV_CHMAP_TSL, /* top side left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) SNDRV_CHMAP_TSR, /* top side right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) SNDRV_CHMAP_BC, /* bottom center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) SNDRV_CHMAP_RLC, /* back left of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) SNDRV_CHMAP_RRC, /* back right of center */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 0 /* terminator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) struct snd_pcm_chmap_elem *chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) const unsigned int *maps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) int c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) if (channels > ARRAY_SIZE(chmap->map))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (!chmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) maps = protocol == UAC_VERSION_2 ? uac2_maps : uac1_maps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) chmap->channels = channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) c = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (bits) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) for (; bits && *maps; maps++, bits >>= 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (bits & 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) chmap->map[c++] = *maps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) /* If we're missing wChannelConfig, then guess something
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) to make sure the channel map is not skipped entirely */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) if (channels == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) chmap->map[c++] = SNDRV_CHMAP_MONO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) for (; c < channels && *maps; maps++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) chmap->map[c++] = *maps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) for (; c < channels; c++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) /* UAC3 device stores channels information in Cluster Descriptors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) static struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) *cluster)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) unsigned int channels = cluster->bNrChannels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct snd_pcm_chmap_elem *chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) void *p = cluster;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) int len, c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (channels > ARRAY_SIZE(chmap->map))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (!chmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) len = le16_to_cpu(cluster->wLength);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) c = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) p += sizeof(struct uac3_cluster_header_descriptor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) while (((p - (void *)cluster) < len) && (c < channels)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) struct uac3_cluster_segment_descriptor *cs_desc = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) u16 cs_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) u8 cs_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) cs_len = le16_to_cpu(cs_desc->wLength);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) cs_type = cs_desc->bSegmentType;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (cs_type == UAC3_CHANNEL_INFORMATION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct uac3_cluster_information_segment_descriptor *is = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) unsigned char map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * TODO: this conversion is not complete, update it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * after adding UAC3 values to asound.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) switch (is->bChRelationship) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) case UAC3_CH_MONO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) map = SNDRV_CHMAP_MONO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) case UAC3_CH_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) case UAC3_CH_FRONT_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) case UAC3_CH_HEADPHONE_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) map = SNDRV_CHMAP_FL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) case UAC3_CH_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) case UAC3_CH_FRONT_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) case UAC3_CH_HEADPHONE_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) map = SNDRV_CHMAP_FR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) case UAC3_CH_FRONT_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) map = SNDRV_CHMAP_FC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) case UAC3_CH_FRONT_LEFT_OF_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) map = SNDRV_CHMAP_FLC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) case UAC3_CH_FRONT_RIGHT_OF_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) map = SNDRV_CHMAP_FRC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) case UAC3_CH_SIDE_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) map = SNDRV_CHMAP_SL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) case UAC3_CH_SIDE_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) map = SNDRV_CHMAP_SR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) case UAC3_CH_BACK_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) map = SNDRV_CHMAP_RL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) case UAC3_CH_BACK_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) map = SNDRV_CHMAP_RR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) case UAC3_CH_BACK_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) map = SNDRV_CHMAP_RC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) case UAC3_CH_BACK_LEFT_OF_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) map = SNDRV_CHMAP_RLC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) case UAC3_CH_BACK_RIGHT_OF_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) map = SNDRV_CHMAP_RRC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) case UAC3_CH_TOP_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) map = SNDRV_CHMAP_TC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) case UAC3_CH_TOP_FRONT_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) map = SNDRV_CHMAP_TFL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) case UAC3_CH_TOP_FRONT_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) map = SNDRV_CHMAP_TFR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) case UAC3_CH_TOP_FRONT_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) map = SNDRV_CHMAP_TFC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) case UAC3_CH_TOP_FRONT_LOC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) map = SNDRV_CHMAP_TFLC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) case UAC3_CH_TOP_FRONT_ROC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) map = SNDRV_CHMAP_TFRC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) case UAC3_CH_TOP_SIDE_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) map = SNDRV_CHMAP_TSL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) case UAC3_CH_TOP_SIDE_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) map = SNDRV_CHMAP_TSR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) case UAC3_CH_TOP_BACK_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) map = SNDRV_CHMAP_TRL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) case UAC3_CH_TOP_BACK_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) map = SNDRV_CHMAP_TRR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) case UAC3_CH_TOP_BACK_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) map = SNDRV_CHMAP_TRC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) case UAC3_CH_BOTTOM_CENTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) map = SNDRV_CHMAP_BC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) case UAC3_CH_LOW_FREQUENCY_EFFECTS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) map = SNDRV_CHMAP_LFE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) case UAC3_CH_LFE_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) map = SNDRV_CHMAP_LLFE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) case UAC3_CH_LFE_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) map = SNDRV_CHMAP_RLFE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) case UAC3_CH_RELATIONSHIP_UNDEFINED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) map = SNDRV_CHMAP_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) chmap->map[c++] = map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) p += cs_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (channels < c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) pr_err("%s: channel number mismatch\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) chmap->channels = channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) for (; c < channels; c++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) * add this endpoint to the chip instance.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * if a stream with the same endpoint already exists, append to it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) * if not, create a new pcm stream. note, fp is added to the substream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * fmt_list and will be freed on the chip instance release. do not free
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) * fp or do remove it from the substream fmt_list to avoid double-free.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) static int __snd_usb_add_audio_stream(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) int stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) struct audioformat *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) struct snd_usb_power_domain *pd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) struct snd_usb_stream *as;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) struct snd_usb_substream *subs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) list_for_each_entry(as, &chip->pcm_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) if (as->fmt_type != fp->fmt_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) subs = &as->substream[stream];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (subs->ep_num == fp->endpoint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) list_add_tail(&fp->list, &subs->fmt_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) subs->num_formats++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) subs->formats |= fp->formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) /* look for an empty stream */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) list_for_each_entry(as, &chip->pcm_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (as->fmt_type != fp->fmt_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) subs = &as->substream[stream];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) if (subs->ep_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) if (snd_device_get_state(chip->card, as->pcm) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) SNDRV_DEV_BUILD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) chip->need_delayed_register = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) err = snd_pcm_new_stream(as->pcm, stream, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) snd_usb_init_substream(as, stream, fp, pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) return add_chmap(as->pcm, stream, subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) /* create a new pcm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) as = kzalloc(sizeof(*as), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) if (!as)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) as->pcm_index = chip->pcm_devs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) as->chip = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) as->fmt_type = fp->fmt_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) &pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) kfree(as);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) as->pcm = pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) pcm->private_data = as;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) pcm->private_free = snd_usb_audio_pcm_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) pcm->info_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (chip->pcm_devs > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) strcpy(pcm->name, "USB Audio");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) snd_usb_init_substream(as, stream, fp, pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) * Keep using head insertion for M-Audio Audiophile USB (tm) which has a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) * fix to swap capture stream order in conf/cards/USB-audio.conf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (chip->usb_id == USB_ID(0x0763, 0x2003))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) list_add(&as->list, &chip->pcm_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) list_add_tail(&as->list, &chip->pcm_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) chip->pcm_devs++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) snd_usb_proc_pcm_format_add(as);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) return add_chmap(pcm, stream, &as->substream[stream]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) int snd_usb_add_audio_stream(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) int stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) struct audioformat *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) return __snd_usb_add_audio_stream(chip, stream, fp, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) static int snd_usb_add_audio_stream_v3(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) int stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) struct audioformat *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) struct snd_usb_power_domain *pd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) return __snd_usb_add_audio_stream(chip, stream, fp, pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) struct usb_host_interface *alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) int protocol, int iface_no)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) /* parsed with a v1 header here. that's ok as we only look at the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) * header first which is the same for both versions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) struct uac_iso_endpoint_descriptor *csep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) struct usb_interface_descriptor *altsd = get_iface_desc(alts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) int attributes = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) /* Creamware Noah has this descriptor after the 2nd endpoint */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) if (!csep && altsd->bNumEndpoints >= 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) * bytes after the first endpoint, go search the entire interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) * Some devices have it directly *before* the standard endpoint.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) if (!csep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) if (!csep || csep->bLength < 7 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) csep->bDescriptorSubtype != UAC_EP_GENERAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) if (protocol == UAC_VERSION_1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) attributes = csep->bmAttributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) } else if (protocol == UAC_VERSION_2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) struct uac2_iso_endpoint_descriptor *csep2 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) (struct uac2_iso_endpoint_descriptor *) csep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) if (csep2->bLength < sizeof(*csep2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) attributes = csep->bmAttributes & UAC_EP_CS_ATTR_FILL_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) /* emulate the endpoint attributes of a v1 device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) if (csep2->bmControls & UAC2_CONTROL_PITCH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) } else { /* UAC_VERSION_3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) struct uac3_iso_endpoint_descriptor *csep3 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) (struct uac3_iso_endpoint_descriptor *) csep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) if (csep3->bLength < sizeof(*csep3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) /* emulate the endpoint attributes of a v1 device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) if (le32_to_cpu(csep3->bmControls) & UAC2_CONTROL_PITCH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) return attributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) usb_audio_warn(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) "%u:%d : no or invalid class specific endpoint descriptor\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) iface_no, altsd->bAlternateSetting);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) /* find an input terminal descriptor (either UAC1 or UAC2) with the given
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) * terminal id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) static void *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) snd_usb_find_input_terminal_descriptor(struct usb_host_interface *ctrl_iface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) int terminal_id, int protocol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) struct uac2_input_terminal_descriptor *term = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) ctrl_iface->extralen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) term, UAC_INPUT_TERMINAL))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) if (!snd_usb_validate_audio_desc(term, protocol))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) if (term->bTerminalID == terminal_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) return term;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) static void *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) snd_usb_find_output_terminal_descriptor(struct usb_host_interface *ctrl_iface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) int terminal_id, int protocol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) /* OK to use with both UAC2 and UAC3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) struct uac2_output_terminal_descriptor *term = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) ctrl_iface->extralen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) term, UAC_OUTPUT_TERMINAL))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) if (!snd_usb_validate_audio_desc(term, protocol))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) if (term->bTerminalID == terminal_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) return term;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) static struct audioformat *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) audio_format_alloc_init(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) struct usb_host_interface *alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) int protocol, int iface_no, int altset_idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) int altno, int num_channels, int clock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) struct audioformat *fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) fp = kzalloc(sizeof(*fp), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) if (!fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) fp->iface = iface_no;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) fp->altsetting = altno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) fp->altset_idx = altset_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) fp->datainterval = snd_usb_parse_datainterval(chip, alts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) fp->protocol = protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) fp->channels = num_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) * (fp->maxpacksize & 0x7ff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) fp->clock = clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) INIT_LIST_HEAD(&fp->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) return fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) static struct audioformat *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) snd_usb_get_audioformat_uac12(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) struct usb_host_interface *alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) int protocol, int iface_no, int altset_idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) int altno, int stream, int bm_quirk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) struct usb_device *dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) struct uac_format_type_i_continuous_descriptor *fmt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) unsigned int num_channels = 0, chconfig = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) struct audioformat *fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) int clock = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) u64 format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) /* get audio formats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) if (protocol == UAC_VERSION_1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) struct uac1_as_header_descriptor *as =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) snd_usb_find_csint_desc(alts->extra, alts->extralen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) NULL, UAC_AS_GENERAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) struct uac_input_terminal_descriptor *iterm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) if (!as) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) "%u:%d : UAC_AS_GENERAL descriptor not found\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) if (as->bLength < sizeof(*as)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) "%u:%d : invalid UAC_AS_GENERAL desc\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) format = le16_to_cpu(as->wFormatTag); /* remember the format value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) iterm = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) as->bTerminalLink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) if (iterm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) num_channels = iterm->bNrChannels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) chconfig = le16_to_cpu(iterm->wChannelConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) } else { /* UAC_VERSION_2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) struct uac2_input_terminal_descriptor *input_term;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) struct uac2_output_terminal_descriptor *output_term;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) struct uac2_as_header_descriptor *as =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) snd_usb_find_csint_desc(alts->extra, alts->extralen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) NULL, UAC_AS_GENERAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) if (!as) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) "%u:%d : UAC_AS_GENERAL descriptor not found\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) if (as->bLength < sizeof(*as)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) "%u:%d : invalid UAC_AS_GENERAL desc\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) num_channels = as->bNrChannels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) format = le32_to_cpu(as->bmFormats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) chconfig = le32_to_cpu(as->bmChannelConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) * lookup the terminal associated to this interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) * to extract the clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) as->bTerminalLink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) if (input_term) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) clock = input_term->bCSourceID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) if (!chconfig && (num_channels == input_term->bNrChannels))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) chconfig = le32_to_cpu(input_term->bmChannelConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) goto found_clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) as->bTerminalLink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) if (output_term) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) clock = output_term->bCSourceID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) goto found_clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) "%u:%d : bogus bTerminalLink %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) iface_no, altno, as->bTerminalLink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) found_clock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) /* get format type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) NULL, UAC_FORMAT_TYPE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) if (!fmt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) "%u:%d : no UAC_FORMAT_TYPE desc\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) || ((protocol == UAC_VERSION_2) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) (fmt->bLength < 6))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) "%u:%d : invalid UAC_FORMAT_TYPE desc\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) * Blue Microphones workaround: The last altsetting is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) * identical with the previous one, except for a larger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) * packet size, but is actually a mislabeled two-channel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) * setting; ignore it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) * Part 2: analyze quirk flag and format
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) if (bm_quirk && fmt->bNrChannels == 1 && fmt->bSubframeSize == 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) fp = audio_format_alloc_init(chip, alts, protocol, iface_no,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) altset_idx, altno, num_channels, clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) if (!fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) iface_no);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) /* some quirks for attributes here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) snd_usb_audioformat_attributes_quirk(chip, fp, stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) /* ok, let's parse further... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) if (snd_usb_parse_audio_format(chip, fp, format,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) fmt, stream) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) audioformat_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) /* Create chmap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) if (fp->channels != num_channels)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) chconfig = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) fp->chmap = convert_chmap(fp->channels, chconfig, protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) return fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) static struct audioformat *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) struct usb_host_interface *alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) struct snd_usb_power_domain **pd_out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) int iface_no, int altset_idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) int altno, int stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) struct usb_device *dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) struct uac3_input_terminal_descriptor *input_term;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) struct uac3_output_terminal_descriptor *output_term;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) struct uac3_cluster_header_descriptor *cluster;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) struct uac3_as_header_descriptor *as = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) struct uac3_hc_descriptor_header hc_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) struct snd_pcm_chmap_elem *chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) struct snd_usb_power_domain *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) unsigned char badd_profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) u64 badd_formats = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) unsigned int num_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) struct audioformat *fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) u16 cluster_id, wLength;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) int clock = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) badd_profile = chip->badd_profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) unsigned int maxpacksize =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) switch (maxpacksize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) "%u:%d : incorrect wMaxPacketSize for BADD profile\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) badd_formats = SNDRV_PCM_FMTBIT_S16_LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) num_channels = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) badd_formats = SNDRV_PCM_FMTBIT_S24_3LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) num_channels = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) badd_formats = SNDRV_PCM_FMTBIT_S16_LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) num_channels = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) badd_formats = SNDRV_PCM_FMTBIT_S24_3LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) num_channels = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) if (!chmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) if (num_channels == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) chmap->map[0] = SNDRV_CHMAP_MONO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) chmap->map[0] = SNDRV_CHMAP_FL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) chmap->map[1] = SNDRV_CHMAP_FR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) chmap->channels = num_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) clock = UAC3_BADD_CS_ID9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) goto found_clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) as = snd_usb_find_csint_desc(alts->extra, alts->extralen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) NULL, UAC_AS_GENERAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) if (!as) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) "%u:%d : UAC_AS_GENERAL descriptor not found\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) if (as->bLength < sizeof(*as)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) "%u:%d : invalid UAC_AS_GENERAL desc\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) cluster_id = le16_to_cpu(as->wClusterDescrID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) if (!cluster_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) "%u:%d : no cluster descriptor\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) * Get number of channels and channel map through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) * High Capability Cluster Descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) * First step: get High Capability header and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) * read size of Cluster Descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) err = snd_usb_ctl_msg(chip->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) usb_rcvctrlpipe(chip->dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) cluster_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) snd_usb_ctrl_intf(chip),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) &hc_header, sizeof(hc_header));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) else if (err != sizeof(hc_header)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) "%u:%d : can't get High Capability descriptor\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) return ERR_PTR(-EIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) * Second step: allocate needed amount of memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) * and request Cluster Descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) wLength = le16_to_cpu(hc_header.wLength);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) cluster = kzalloc(wLength, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) if (!cluster)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) err = snd_usb_ctl_msg(chip->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) usb_rcvctrlpipe(chip->dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) cluster_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) snd_usb_ctrl_intf(chip),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) cluster, wLength);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) kfree(cluster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) } else if (err != wLength) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) "%u:%d : can't get Cluster Descriptor\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) kfree(cluster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) return ERR_PTR(-EIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) num_channels = cluster->bNrChannels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) chmap = convert_chmap_v3(cluster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) kfree(cluster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) * lookup the terminal associated to this interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) * to extract the clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) as->bTerminalLink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) UAC_VERSION_3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) if (input_term) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) clock = input_term->bCSourceID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) goto found_clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) as->bTerminalLink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) UAC_VERSION_3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) if (output_term) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) clock = output_term->bCSourceID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) goto found_clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) dev_err(&dev->dev, "%u:%d : bogus bTerminalLink %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) iface_no, altno, as->bTerminalLink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) kfree(chmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) found_clock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) fp = audio_format_alloc_init(chip, alts, UAC_VERSION_3, iface_no,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) altset_idx, altno, num_channels, clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) if (!fp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) kfree(chmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) fp->chmap = chmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) fp->attributes = 0; /* No attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) fp->fmt_type = UAC_FORMAT_TYPE_I;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) fp->formats = badd_formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) fp->nr_rates = 0; /* SNDRV_PCM_RATE_CONTINUOUS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) fp->rate_min = UAC3_BADD_SAMPLING_RATE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) fp->rate_max = UAC3_BADD_SAMPLING_RATE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) fp->rates = SNDRV_PCM_RATE_CONTINUOUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) pd = kzalloc(sizeof(*pd), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) if (!pd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) audioformat_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) pd->pd_id = (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) UAC3_BADD_PD_ID10 : UAC3_BADD_PD_ID11;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) pd->pd_d1d0_rec = UAC3_BADD_PD_RECOVER_D1D0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) pd->pd_d2d0_rec = UAC3_BADD_PD_RECOVER_D2D0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) fp->attributes = parse_uac_endpoint_attributes(chip, alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) UAC_VERSION_3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) iface_no);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) pd = snd_usb_find_power_domain(chip->ctrl_intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) as->bTerminalLink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) /* ok, let's parse further... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) kfree(pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) audioformat_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) if (pd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) *pd_out = pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) return fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) int iface_no,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) bool *has_non_pcm, bool non_pcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) struct usb_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) struct usb_interface *iface;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) struct usb_host_interface *alts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) struct usb_interface_descriptor *altsd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) int i, altno, err, stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) struct audioformat *fp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) struct snd_usb_power_domain *pd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) int num, protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) /* parse the interface's altsettings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) iface = usb_ifnum_to_if(dev, iface_no);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) num = iface->num_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) * Dallas DS4201 workaround: It presents 5 altsettings, but the last
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) * one misses syncpipe, and does not produce any sound.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) if (chip->usb_id == USB_ID(0x04fa, 0x4201))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) num = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) for (i = 0; i < num; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) alts = &iface->altsetting[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) altsd = get_iface_desc(alts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) protocol = altsd->bInterfaceProtocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) /* skip invalid one */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) if (((altsd->bInterfaceClass != USB_CLASS_AUDIO ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) altsd->bNumEndpoints < 1 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) /* must be isochronous */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) USB_ENDPOINT_XFER_ISOC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) /* check direction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) altno = altsd->bAlternateSetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) if (snd_usb_apply_interface_quirk(chip, iface_no, altno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) * Roland audio streaming interfaces are marked with protocols
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) * 0/1/2, but are UAC 1 compatible.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) if (USB_ID_VENDOR(chip->usb_id) == 0x0582 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) protocol <= 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) protocol = UAC_VERSION_1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) switch (protocol) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) iface_no, altno, protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) protocol = UAC_VERSION_1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) case UAC_VERSION_1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) case UAC_VERSION_2: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) int bm_quirk = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) * Blue Microphones workaround: The last altsetting is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) * identical with the previous one, except for a larger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) * packet size, but is actually a mislabeled two-channel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) * setting; ignore it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) * Part 1: prepare quirk flag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) if (altno == 2 && num == 3 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) fp && fp->altsetting == 1 && fp->channels == 1 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) fp->formats == SNDRV_PCM_FMTBIT_S16_LE &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) protocol == UAC_VERSION_1 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) fp->maxpacksize * 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) bm_quirk = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) fp = snd_usb_get_audioformat_uac12(chip, alts, protocol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) iface_no, i, altno,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) stream, bm_quirk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) case UAC_VERSION_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) fp = snd_usb_get_audioformat_uac3(chip, alts, &pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) iface_no, i, altno, stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) if (!fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) else if (IS_ERR(fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) return PTR_ERR(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) if (fp->fmt_type != UAC_FORMAT_TYPE_I)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) *has_non_pcm = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) if ((fp->fmt_type == UAC_FORMAT_TYPE_I) == non_pcm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) audioformat_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) kfree(pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) fp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) pd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) if (protocol == UAC_VERSION_3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) err = snd_usb_add_audio_stream_v3(chip, stream, fp, pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) err = snd_usb_add_audio_stream(chip, stream, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) audioformat_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) kfree(pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) /* try to set the interface... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) usb_set_interface(chip->dev, iface_no, altno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) snd_usb_init_pitch(chip, iface_no, alts, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) snd_usb_init_sample_rate(chip, iface_no, alts, fp, fp->rate_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) bool has_non_pcm = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) /* parse PCM formats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) if (has_non_pcm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) /* parse non-PCM formats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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