sys/dev/sound/usb/uaudio.c

   1 /*      $NetBSD: uaudio.c,v 1.91 2004/11/05 17:46:14 kent Exp $ */
   2 /*      $FreeBSD$ */
   3
   4 /*-
   5  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   6  * All rights reserved.
   7  *
   8  * This code is derived from software contributed to The NetBSD Foundation
   9  * by Lennart Augustsson (lennart@augustsson.net) at
  10  * Carlstedt Research & Technology.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * USB audio specs: http://www.usb.org/developers/devclass_docs/audio10.pdf
  36  *                  http://www.usb.org/developers/devclass_docs/frmts10.pdf
  37  *                  http://www.usb.org/developers/devclass_docs/termt10.pdf
  38  */
  39
  40 /*
  41  * Also merged:
  42  *  $NetBSD: uaudio.c,v 1.94 2005/01/15 15:19:53 kent Exp $
  43  *  $NetBSD: uaudio.c,v 1.95 2005/01/16 06:02:19 dsainty Exp $
  44  *  $NetBSD: uaudio.c,v 1.96 2005/01/16 12:46:00 kent Exp $
  45  *  $NetBSD: uaudio.c,v 1.97 2005/02/24 08:19:38 martin Exp $
  46  */
  47
  48 #include "usbdevs.h"
  49 #include <dev/usb/usb.h>
  50 #include <dev/usb/usb_mfunc.h>
  51 #include <dev/usb/usb_error.h>
  52
  53 #define USB_DEBUG_VAR uaudio_debug
  54
  55 #include <dev/usb/usb_core.h>
  56 #include <dev/usb/usb_lookup.h>
  57 #include <dev/usb/usb_debug.h>
  58 #include <dev/usb/usb_util.h>
  59 #include <dev/usb/usb_busdma.h>
  60 #include <dev/usb/usb_parse.h>
  61 #include <dev/usb/usb_request.h>
  62 #include <dev/usb/usb_mbuf.h>
  63 #include <dev/usb/usb_dev.h>
  64 #include <dev/usb/usb_dynamic.h>
  65
  66 #include <dev/usb/quirk/usb_quirk.h>
  67
  68 #include <sys/reboot.h>                 /* for bootverbose */
  69
  70 #include <dev/sound/pcm/sound.h>
  71 #include <dev/sound/usb/uaudioreg.h>
  72 #include <dev/sound/usb/uaudio.h>
  73 #include <dev/sound/chip.h>
  74 #include "feeder_if.h"
  75
  76 static int uaudio_default_rate = 96000;
  77 static int uaudio_default_bits = 32;
  78 static int uaudio_default_channels = 2;
  79
  80 #if USB_DEBUG
  81 static int uaudio_debug = 0;
  82
  83 SYSCTL_NODE(_hw_usb, OID_AUTO, uaudio, CTLFLAG_RW, 0, "USB uaudio");
  84 SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, debug, CTLFLAG_RW,
  85     &uaudio_debug, 0, "uaudio debug level");
  86 SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, default_rate, CTLFLAG_RW,
  87     &uaudio_default_rate, 0, "uaudio default sample rate");
  88 SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, default_bits, CTLFLAG_RW,
  89     &uaudio_default_bits, 0, "uaudio default sample bits");
  90 SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, default_channels, CTLFLAG_RW,
  91     &uaudio_default_channels, 0, "uaudio default sample channels");
  92 #endif
  93
  94 #define UAUDIO_MINFRAMES       16       /* must be factor of 8 due HS-USB */
  95 #define UAUDIO_NCHANBUFS        2       /* number of outstanding request */
  96 #define UAUDIO_RECURSE_LIMIT   24       /* rounds */
  97
  98 #define MAKE_WORD(h,l) (((h) << 8) | (l))
  99 #define BIT_TEST(bm,bno) (((bm)[(bno) / 8] >> (7 - ((bno) % 8))) & 1)
 100 #define UAUDIO_MAX_CHAN(x) (((x) < 2) ? (x) : 2)        /* XXX fixme later */
 101
 102 struct uaudio_mixer_node {
 103         int32_t minval;
 104         int32_t maxval;
 105 #define MIX_MAX_CHAN 8
 106         int32_t wValue[MIX_MAX_CHAN];   /* using nchan */
 107         uint32_t delta;
 108         uint32_t mul;
 109         uint32_t ctl;
 110
 111         uint16_t wData[MIX_MAX_CHAN];   /* using nchan */
 112         uint16_t wIndex;
 113
 114         uint8_t update[(MIX_MAX_CHAN + 7) / 8];
 115         uint8_t nchan;
 116         uint8_t type;
 117 #define MIX_ON_OFF      1
 118 #define MIX_SIGNED_16   2
 119 #define MIX_UNSIGNED_16 3
 120 #define MIX_SIGNED_8    4
 121 #define MIX_SELECTOR    5
 122 #define MIX_UNKNOWN     6
 123 #define MIX_SIZE(n) ((((n) == MIX_SIGNED_16) || \
 124                       ((n) == MIX_UNSIGNED_16)) ? 2 : 1)
 125 #define MIX_UNSIGNED(n) ((n) == MIX_UNSIGNED_16)
 126
 127 #define MAX_SELECTOR_INPUT_PIN 256
 128         uint8_t slctrtype[MAX_SELECTOR_INPUT_PIN];
 129         uint8_t class;
 130
 131         struct uaudio_mixer_node *next;
 132 };
 133
 134 struct uaudio_chan {
 135         struct pcmchan_caps pcm_cap;    /* capabilities */
 136
 137         struct snd_dbuf *pcm_buf;
 138         const struct usb_config *usb2_cfg;
 139         struct mtx *pcm_mtx;            /* lock protecting this structure */
 140         struct uaudio_softc *priv_sc;
 141         struct pcm_channel *pcm_ch;
 142         struct usb_xfer *xfer[UAUDIO_NCHANBUFS];
 143         const struct usb2_audio_streaming_interface_descriptor *p_asid;
 144         const struct usb2_audio_streaming_type1_descriptor *p_asf1d;
 145         const struct usb2_audio_streaming_endpoint_descriptor *p_sed;
 146         const usb2_endpoint_descriptor_audio_t *p_ed1;
 147         const usb2_endpoint_descriptor_audio_t *p_ed2;
 148         const struct uaudio_format *p_fmt;
 149
 150         uint8_t *buf;                   /* pointer to buffer */
 151         uint8_t *start;                 /* upper layer buffer start */
 152         uint8_t *end;                   /* upper layer buffer end */
 153         uint8_t *cur;                   /* current position in upper layer
 154                                          * buffer */
 155
 156         uint32_t intr_size;             /* in bytes */
 157         uint32_t block_size;
 158         uint32_t sample_rate;
 159         uint32_t format;
 160         uint32_t pcm_format[2];
 161
 162         uint16_t bytes_per_frame;
 163
 164         uint8_t valid;
 165         uint8_t iface_index;
 166         uint8_t iface_alt_index;
 167 };
 168
 169 #define UMIDI_N_TRANSFER    4           /* units */
 170 #define UMIDI_CABLES_MAX   16           /* units */
 171 #define UMIDI_BULK_SIZE  1024           /* bytes */
 172
 173 struct umidi_sub_chan {
 174         struct usb_fifo_sc fifo;
 175         uint8_t *temp_cmd;
 176         uint8_t temp_0[4];
 177         uint8_t temp_1[4];
 178         uint8_t state;
 179 #define UMIDI_ST_UNKNOWN   0            /* scan for command */
 180 #define UMIDI_ST_1PARAM    1
 181 #define UMIDI_ST_2PARAM_1  2
 182 #define UMIDI_ST_2PARAM_2  3
 183 #define UMIDI_ST_SYSEX_0   4
 184 #define UMIDI_ST_SYSEX_1   5
 185 #define UMIDI_ST_SYSEX_2   6
 186
 187         uint8_t read_open:1;
 188         uint8_t write_open:1;
 189         uint8_t unused:6;
 190 };
 191
 192 struct umidi_chan {
 193
 194         struct umidi_sub_chan sub[UMIDI_CABLES_MAX];
 195         struct mtx mtx;
 196
 197         struct usb_xfer *xfer[UMIDI_N_TRANSFER];
 198
 199         uint8_t iface_index;
 200         uint8_t iface_alt_index;
 201
 202         uint8_t flags;
 203 #define UMIDI_FLAG_READ_STALL  0x01
 204 #define UMIDI_FLAG_WRITE_STALL 0x02
 205
 206         uint8_t read_open_refcount;
 207         uint8_t write_open_refcount;
 208
 209         uint8_t curr_cable;
 210         uint8_t max_cable;
 211         uint8_t valid;
 212 };
 213
 214 struct uaudio_softc {
 215         struct sbuf sc_sndstat;
 216         struct sndcard_func sc_sndcard_func;
 217         struct uaudio_chan sc_rec_chan;
 218         struct uaudio_chan sc_play_chan;
 219         struct umidi_chan sc_midi_chan;
 220
 221         struct usb_device *sc_udev;
 222         struct usb_xfer *sc_mixer_xfer[1];
 223         struct uaudio_mixer_node *sc_mixer_root;
 224         struct uaudio_mixer_node *sc_mixer_curr;
 225
 226         uint32_t sc_mix_info;
 227         uint32_t sc_recsrc_info;
 228
 229         uint16_t sc_audio_rev;
 230         uint16_t sc_mixer_count;
 231
 232         uint8_t sc_sndstat_valid;
 233         uint8_t sc_mixer_iface_index;
 234         uint8_t sc_mixer_iface_no;
 235         uint8_t sc_mixer_chan;
 236         uint8_t sc_pcm_registered:1;
 237         uint8_t sc_mixer_init:1;
 238         uint8_t sc_uq_audio_swap_lr:1;
 239         uint8_t sc_uq_au_inp_async:1;
 240         uint8_t sc_uq_au_no_xu:1;
 241         uint8_t sc_uq_bad_adc:1;
 242 };
 243
 244 struct uaudio_search_result {
 245         uint8_t bit_input[(256 + 7) / 8];
 246         uint8_t bit_output[(256 + 7) / 8];
 247         uint8_t bit_visited[(256 + 7) / 8];
 248         uint8_t recurse_level;
 249         uint8_t id_max;
 250 };
 251
 252 struct uaudio_terminal_node {
 253         union {
 254                 const struct usb_descriptor *desc;
 255                 const struct usb2_audio_input_terminal *it;
 256                 const struct usb2_audio_output_terminal *ot;
 257                 const struct usb2_audio_mixer_unit_0 *mu;
 258                 const struct usb2_audio_selector_unit *su;
 259                 const struct usb2_audio_feature_unit *fu;
 260                 const struct usb2_audio_processing_unit_0 *pu;
 261                 const struct usb2_audio_extension_unit_0 *eu;
 262         }       u;
 263         struct uaudio_search_result usr;
 264         struct uaudio_terminal_node *root;
 265 };
 266
 267 struct uaudio_format {
 268         uint16_t wFormat;
 269         uint8_t bPrecision;
 270         uint32_t freebsd_fmt;
 271         const char *description;
 272 };
 273
 274 static const struct uaudio_format uaudio_formats[] = {
 275
 276         {UA_FMT_PCM8, 8, AFMT_U8, "8-bit U-LE PCM"},
 277         {UA_FMT_PCM8, 16, AFMT_U16_LE, "16-bit U-LE PCM"},
 278         {UA_FMT_PCM8, 24, AFMT_U24_LE, "24-bit U-LE PCM"},
 279         {UA_FMT_PCM8, 32, AFMT_U32_LE, "32-bit U-LE PCM"},
 280
 281         {UA_FMT_PCM, 8, AFMT_S8, "8-bit S-LE PCM"},
 282         {UA_FMT_PCM, 16, AFMT_S16_LE, "16-bit S-LE PCM"},
 283         {UA_FMT_PCM, 24, AFMT_S24_LE, "24-bit S-LE PCM"},
 284         {UA_FMT_PCM, 32, AFMT_S32_LE, "32-bit S-LE PCM"},
 285
 286         {UA_FMT_ALAW, 8, AFMT_A_LAW, "8-bit A-Law"},
 287         {UA_FMT_MULAW, 8, AFMT_MU_LAW, "8-bit mu-Law"},
 288
 289         {0, 0, 0, NULL}
 290 };
 291
 292 #define UAC_OUTPUT      0
 293 #define UAC_INPUT       1
 294 #define UAC_EQUAL       2
 295 #define UAC_RECORD      3
 296 #define UAC_NCLASSES    4
 297
 298 #if USB_DEBUG
 299 static const char *uac_names[] = {
 300         "outputs", "inputs", "equalization", "record"
 301 };
 302
 303 #endif
 304
 305 /* prototypes */
 306
 307 static device_probe_t uaudio_probe;
 308 static device_attach_t uaudio_attach;
 309 static device_detach_t uaudio_detach;
 310
 311 static usb_callback_t uaudio_chan_play_callback;
 312 static usb_callback_t uaudio_chan_record_callback;
 313 static usb_callback_t uaudio_mixer_write_cfg_callback;
 314 static usb_callback_t umidi_read_clear_stall_callback;
 315 static usb_callback_t umidi_bulk_read_callback;
 316 static usb_callback_t umidi_write_clear_stall_callback;
 317 static usb_callback_t umidi_bulk_write_callback;
 318
 319 static void     uaudio_chan_fill_info_sub(struct uaudio_softc *,
 320                     struct usb_device *, uint32_t, uint16_t, uint8_t, uint8_t);
 321 static void     uaudio_chan_fill_info(struct uaudio_softc *,
 322                     struct usb_device *);
 323 static void     uaudio_mixer_add_ctl_sub(struct uaudio_softc *,
 324                     struct uaudio_mixer_node *);
 325 static void     uaudio_mixer_add_ctl(struct uaudio_softc *,
 326                     struct uaudio_mixer_node *);
 327 static void     uaudio_mixer_add_input(struct uaudio_softc *,
 328                     const struct uaudio_terminal_node *, int);
 329 static void     uaudio_mixer_add_output(struct uaudio_softc *,
 330                     const struct uaudio_terminal_node *, int);
 331 static void     uaudio_mixer_add_mixer(struct uaudio_softc *,
 332                     const struct uaudio_terminal_node *, int);
 333 static void     uaudio_mixer_add_selector(struct uaudio_softc *,
 334                     const struct uaudio_terminal_node *, int);
 335 static uint32_t uaudio_mixer_feature_get_bmaControls(
 336                     const struct usb2_audio_feature_unit *, uint8_t);
 337 static void     uaudio_mixer_add_feature(struct uaudio_softc *,
 338                     const struct uaudio_terminal_node *, int);
 339 static void     uaudio_mixer_add_processing_updown(struct uaudio_softc *,
 340                     const struct uaudio_terminal_node *, int);
 341 static void     uaudio_mixer_add_processing(struct uaudio_softc *,
 342                     const struct uaudio_terminal_node *, int);
 343 static void     uaudio_mixer_add_extension(struct uaudio_softc *,
 344                     const struct uaudio_terminal_node *, int);
 345 static struct   usb2_audio_cluster uaudio_mixer_get_cluster(uint8_t,
 346                     const struct uaudio_terminal_node *);
 347 static uint16_t uaudio_mixer_determine_class(const struct uaudio_terminal_node *,
 348                     struct uaudio_mixer_node *);
 349 static uint16_t uaudio_mixer_feature_name(const struct uaudio_terminal_node *,
 350                     struct uaudio_mixer_node *);
 351 static const struct uaudio_terminal_node *uaudio_mixer_get_input(
 352                     const struct uaudio_terminal_node *, uint8_t);
 353 static const struct uaudio_terminal_node *uaudio_mixer_get_output(
 354                     const struct uaudio_terminal_node *, uint8_t);
 355 static void     uaudio_mixer_find_inputs_sub(struct uaudio_terminal_node *,
 356                     const uint8_t *, uint8_t, struct uaudio_search_result *);
 357 static void     uaudio_mixer_find_outputs_sub(struct uaudio_terminal_node *,
 358                     uint8_t, uint8_t, struct uaudio_search_result *);
 359 static void     uaudio_mixer_fill_info(struct uaudio_softc *,
 360                     struct usb_device *, void *);
 361 static uint16_t uaudio_mixer_get(struct usb_device *, uint8_t,
 362                     struct uaudio_mixer_node *);
 363 static void     uaudio_mixer_ctl_set(struct uaudio_softc *,
 364                     struct uaudio_mixer_node *, uint8_t, int32_t val);
 365 static usb_error_t uaudio_set_speed(struct usb_device *, uint8_t, uint32_t);
 366 static int      uaudio_mixer_signext(uint8_t, int);
 367 static int      uaudio_mixer_bsd2value(struct uaudio_mixer_node *, int32_t val);
 368 static const void *uaudio_mixer_verify_desc(const void *, uint32_t);
 369 static void     uaudio_mixer_init(struct uaudio_softc *);
 370 static uint8_t  umidi_convert_to_usb(struct umidi_sub_chan *, uint8_t, uint8_t);
 371 static struct   umidi_sub_chan *umidi_sub_by_fifo(struct usb_fifo *);
 372 static void     umidi_start_read(struct usb_fifo *);
 373 static void     umidi_stop_read(struct usb_fifo *);
 374 static void     umidi_start_write(struct usb_fifo *);
 375 static void     umidi_stop_write(struct usb_fifo *);
 376 static int      umidi_open(struct usb_fifo *, int);
 377 static int      umidi_ioctl(struct usb_fifo *, u_long cmd, void *, int);
 378 static void     umidi_close(struct usb_fifo *, int);
 379 static void     umidi_init(device_t dev);
 380 static int32_t  umidi_probe(device_t dev);
 381 static int32_t  umidi_detach(device_t dev);
 382
 383 #if USB_DEBUG
 384 static void     uaudio_chan_dump_ep_desc(
 385                     const usb2_endpoint_descriptor_audio_t *);
 386 static void     uaudio_mixer_dump_cluster(uint8_t,
 387                     const struct uaudio_terminal_node *);
 388 static const char *uaudio_mixer_get_terminal_name(uint16_t);
 389 #endif
 390
 391 static const struct usb_config
 392         uaudio_cfg_record[UAUDIO_NCHANBUFS] = {
 393         [0] = {
 394                 .type = UE_ISOCHRONOUS,
 395                 .endpoint = UE_ADDR_ANY,
 396                 .direction = UE_DIR_IN,
 397                 .bufsize = 0,   /* use "wMaxPacketSize * frames" */
 398                 .frames = UAUDIO_MINFRAMES,
 399                 .flags = {.short_xfer_ok = 1,},
 400                 .callback = &uaudio_chan_record_callback,
 401         },
 402
 403         [1] = {
 404                 .type = UE_ISOCHRONOUS,
 405                 .endpoint = UE_ADDR_ANY,
 406                 .direction = UE_DIR_IN,
 407                 .bufsize = 0,   /* use "wMaxPacketSize * frames" */
 408                 .frames = UAUDIO_MINFRAMES,
 409                 .flags = {.short_xfer_ok = 1,},
 410                 .callback = &uaudio_chan_record_callback,
 411         },
 412 };
 413
 414 static const struct usb_config
 415         uaudio_cfg_play[UAUDIO_NCHANBUFS] = {
 416         [0] = {
 417                 .type = UE_ISOCHRONOUS,
 418                 .endpoint = UE_ADDR_ANY,
 419                 .direction = UE_DIR_OUT,
 420                 .bufsize = 0,   /* use "wMaxPacketSize * frames" */
 421                 .frames = UAUDIO_MINFRAMES,
 422                 .flags = {.short_xfer_ok = 1,},
 423                 .callback = &uaudio_chan_play_callback,
 424         },
 425
 426         [1] = {
 427                 .type = UE_ISOCHRONOUS,
 428                 .endpoint = UE_ADDR_ANY,
 429                 .direction = UE_DIR_OUT,
 430                 .bufsize = 0,   /* use "wMaxPacketSize * frames" */
 431                 .frames = UAUDIO_MINFRAMES,
 432                 .flags = {.short_xfer_ok = 1,},
 433                 .callback = &uaudio_chan_play_callback,
 434         },
 435 };
 436
 437 static const struct usb_config
 438         uaudio_mixer_config[1] = {
 439         [0] = {
 440                 .type = UE_CONTROL,
 441                 .endpoint = 0x00,       /* Control pipe */
 442                 .direction = UE_DIR_ANY,
 443                 .bufsize = (sizeof(struct usb_device_request) + 4),
 444                 .callback = &uaudio_mixer_write_cfg_callback,
 445                 .timeout = 1000,        /* 1 second */
 446         },
 447 };
 448
 449 static const
 450 uint8_t umidi_cmd_to_len[16] = {
 451         [0x0] = 0,                      /* reserved */
 452         [0x1] = 0,                      /* reserved */
 453         [0x2] = 2,                      /* bytes */
 454         [0x3] = 3,                      /* bytes */
 455         [0x4] = 3,                      /* bytes */
 456         [0x5] = 1,                      /* bytes */
 457         [0x6] = 2,                      /* bytes */
 458         [0x7] = 3,                      /* bytes */
 459         [0x8] = 3,                      /* bytes */
 460         [0x9] = 3,                      /* bytes */
 461         [0xA] = 3,                      /* bytes */
 462         [0xB] = 3,                      /* bytes */
 463         [0xC] = 2,                      /* bytes */
 464         [0xD] = 2,                      /* bytes */
 465         [0xE] = 3,                      /* bytes */
 466         [0xF] = 1,                      /* bytes */
 467 };
 468
 469 static const struct usb_config
 470         umidi_config[UMIDI_N_TRANSFER] = {
 471         [0] = {
 472                 .type = UE_BULK,
 473                 .endpoint = UE_ADDR_ANY,
 474                 .direction = UE_DIR_OUT,
 475                 .bufsize = UMIDI_BULK_SIZE,
 476                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 477                 .callback = &umidi_bulk_write_callback,
 478         },
 479
 480         [1] = {
 481                 .type = UE_BULK,
 482                 .endpoint = UE_ADDR_ANY,
 483                 .direction = UE_DIR_IN,
 484                 .bufsize = UMIDI_BULK_SIZE,
 485                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 486                 .callback = &umidi_bulk_read_callback,
 487         },
 488
 489         [2] = {
 490                 .type = UE_CONTROL,
 491                 .endpoint = 0x00,       /* Control pipe */
 492                 .direction = UE_DIR_ANY,
 493                 .bufsize = sizeof(struct usb_device_request),
 494                 .flags = {},
 495                 .callback = &umidi_write_clear_stall_callback,
 496                 .timeout = 1000,        /* 1 second */
 497                 .interval = 50, /* 50ms */
 498         },
 499
 500         [3] = {
 501                 .type = UE_CONTROL,
 502                 .endpoint = 0x00,       /* Control pipe */
 503                 .direction = UE_DIR_ANY,
 504                 .bufsize = sizeof(struct usb_device_request),
 505                 .flags = {},
 506                 .callback = &umidi_read_clear_stall_callback,
 507                 .timeout = 1000,        /* 1 second */
 508                 .interval = 50, /* 50ms */
 509         },
 510 };
 511
 512 static devclass_t uaudio_devclass;
 513
 514 static device_method_t uaudio_methods[] = {
 515         DEVMETHOD(device_probe, uaudio_probe),
 516         DEVMETHOD(device_attach, uaudio_attach),
 517         DEVMETHOD(device_detach, uaudio_detach),
 518         DEVMETHOD(device_suspend, bus_generic_suspend),
 519         DEVMETHOD(device_resume, bus_generic_resume),
 520         DEVMETHOD(device_shutdown, bus_generic_shutdown),
 521         DEVMETHOD(bus_print_child, bus_generic_print_child),
 522         {0, 0}
 523 };
 524
 525 static driver_t uaudio_driver = {
 526         .name = "uaudio",
 527         .methods = uaudio_methods,
 528         .size = sizeof(struct uaudio_softc),
 529 };
 530
 531 static int
 532 uaudio_probe(device_t dev)
 533 {
 534         struct usb_attach_arg *uaa = device_get_ivars(dev);
 535
 536         if (uaa->usb_mode != USB_MODE_HOST)
 537                 return (ENXIO);
 538
 539         if (uaa->use_generic == 0)
 540                 return (ENXIO);
 541
 542         /* trigger on the control interface */
 543
 544         if ((uaa->info.bInterfaceClass == UICLASS_AUDIO) &&
 545             (uaa->info.bInterfaceSubClass == UISUBCLASS_AUDIOCONTROL)) {
 546                 if (usb2_test_quirk(uaa, UQ_BAD_AUDIO))
 547                         return (ENXIO);
 548                 else
 549                         return (0);
 550         }
 551         return (ENXIO);
 552 }
 553
 554 static int
 555 uaudio_attach(device_t dev)
 556 {
 557         struct usb_attach_arg *uaa = device_get_ivars(dev);
 558         struct uaudio_softc *sc = device_get_softc(dev);
 559         struct usb_interface_descriptor *id;
 560         device_t child;
 561
 562         sc->sc_play_chan.priv_sc = sc;
 563         sc->sc_rec_chan.priv_sc = sc;
 564         sc->sc_udev = uaa->device;
 565
 566         if (usb2_test_quirk(uaa, UQ_AUDIO_SWAP_LR))
 567                 sc->sc_uq_audio_swap_lr = 1;
 568
 569         if (usb2_test_quirk(uaa, UQ_AU_INP_ASYNC))
 570                 sc->sc_uq_au_inp_async = 1;
 571
 572         if (usb2_test_quirk(uaa, UQ_AU_NO_XU))
 573                 sc->sc_uq_au_no_xu = 1;
 574
 575         if (usb2_test_quirk(uaa, UQ_BAD_ADC))
 576                 sc->sc_uq_bad_adc = 1;
 577
 578         umidi_init(dev);
 579
 580         device_set_usb2_desc(dev);
 581
 582         id = usb2_get_interface_descriptor(uaa->iface);
 583
 584         uaudio_chan_fill_info(sc, uaa->device);
 585
 586         uaudio_mixer_fill_info(sc, uaa->device, id);
 587
 588         sc->sc_mixer_iface_index = uaa->info.bIfaceIndex;
 589         sc->sc_mixer_iface_no = uaa->info.bIfaceNum;
 590
 591         DPRINTF("audio rev %d.%02x\n",
 592             sc->sc_audio_rev >> 8,
 593             sc->sc_audio_rev & 0xff);
 594
 595         DPRINTF("%d mixer controls\n",
 596             sc->sc_mixer_count);
 597
 598         if (sc->sc_play_chan.valid) {
 599                 device_printf(dev, "Play: %d Hz, %d ch, %s format\n",
 600                     sc->sc_play_chan.sample_rate,
 601                     sc->sc_play_chan.p_asf1d->bNrChannels,
 602                     sc->sc_play_chan.p_fmt->description);
 603         } else {
 604                 device_printf(dev, "No playback!\n");
 605         }
 606
 607         if (sc->sc_rec_chan.valid) {
 608                 device_printf(dev, "Record: %d Hz, %d ch, %s format\n",
 609                     sc->sc_rec_chan.sample_rate,
 610                     sc->sc_rec_chan.p_asf1d->bNrChannels,
 611                     sc->sc_rec_chan.p_fmt->description);
 612         } else {
 613                 device_printf(dev, "No recording!\n");
 614         }
 615
 616         if (sc->sc_midi_chan.valid) {
 617
 618                 if (umidi_probe(dev)) {
 619                         goto detach;
 620                 }
 621                 device_printf(dev, "MIDI sequencer\n");
 622         } else {
 623                 device_printf(dev, "No midi sequencer\n");
 624         }
 625
 626         DPRINTF("doing child attach\n");
 627
 628         /* attach the children */
 629
 630         sc->sc_sndcard_func.func = SCF_PCM;
 631
 632         child = device_add_child(dev, "pcm", -1);
 633
 634         if (child == NULL) {
 635                 DPRINTF("out of memory\n");
 636                 goto detach;
 637         }
 638         device_set_ivars(child, &sc->sc_sndcard_func);
 639
 640         if (bus_generic_attach(dev)) {
 641                 DPRINTF("child attach failed\n");
 642                 goto detach;
 643         }
 644         return (0);                     /* success */
 645
 646 detach:
 647         uaudio_detach(dev);
 648         return (ENXIO);
 649 }
 650
 651 static void
 652 uaudio_pcm_setflags(device_t dev, uint32_t flags)
 653 {
 654         pcm_setflags(dev, pcm_getflags(dev) | flags);
 655 }
 656
 657 int
 658 uaudio_attach_sub(device_t dev, kobj_class_t mixer_class, kobj_class_t chan_class)
 659 {
 660         struct uaudio_softc *sc = device_get_softc(device_get_parent(dev));
 661         char status[SND_STATUSLEN];
 662
 663         uaudio_mixer_init(sc);
 664
 665         if (sc->sc_uq_audio_swap_lr) {
 666                 DPRINTF("hardware has swapped left and right\n");
 667                 uaudio_pcm_setflags(dev, SD_F_PSWAPLR);
 668         }
 669         if (!(sc->sc_mix_info & SOUND_MASK_PCM)) {
 670
 671                 DPRINTF("emulating master volume\n");
 672
 673                 /*
 674                  * Emulate missing pcm mixer controller
 675                  * through FEEDER_VOLUME
 676                  */
 677                 uaudio_pcm_setflags(dev, SD_F_SOFTPCMVOL);
 678         }
 679         if (mixer_init(dev, mixer_class, sc)) {
 680                 goto detach;
 681         }
 682         sc->sc_mixer_init = 1;
 683
 684         snprintf(status, sizeof(status), "at ? %s", PCM_KLDSTRING(snd_uaudio));
 685
 686         if (pcm_register(dev, sc,
 687             sc->sc_play_chan.valid ? 1 : 0,
 688             sc->sc_rec_chan.valid ? 1 : 0)) {
 689                 goto detach;
 690         }
 691         sc->sc_pcm_registered = 1;
 692
 693         if (sc->sc_play_chan.valid) {
 694                 pcm_addchan(dev, PCMDIR_PLAY, chan_class, sc);
 695         }
 696         if (sc->sc_rec_chan.valid) {
 697                 pcm_addchan(dev, PCMDIR_REC, chan_class, sc);
 698         }
 699         pcm_setstatus(dev, status);
 700
 701         return (0);                     /* success */
 702
 703 detach:
 704         uaudio_detach_sub(dev);
 705         return (ENXIO);
 706 }
 707
 708 int
 709 uaudio_detach_sub(device_t dev)
 710 {
 711         struct uaudio_softc *sc = device_get_softc(device_get_parent(dev));
 712         int error = 0;
 713
 714 repeat:
 715         if (sc->sc_pcm_registered) {
 716                 error = pcm_unregister(dev);
 717         } else {
 718                 if (sc->sc_mixer_init) {
 719                         error = mixer_uninit(dev);
 720                 }
 721         }
 722
 723         if (error) {
 724                 device_printf(dev, "Waiting for sound application to exit!\n");
 725                 usb2_pause_mtx(NULL, 2 * hz);
 726                 goto repeat;            /* try again */
 727         }
 728         return (0);                     /* success */
 729 }
 730
 731 static int
 732 uaudio_detach(device_t dev)
 733 {
 734         struct uaudio_softc *sc = device_get_softc(dev);
 735
 736         if (bus_generic_detach(dev)) {
 737                 DPRINTF("detach failed!\n");
 738         }
 739         sbuf_delete(&sc->sc_sndstat);
 740         sc->sc_sndstat_valid = 0;
 741
 742         umidi_detach(dev);
 743
 744         return (0);
 745 }
 746
 747 /*========================================================================*
 748  * AS - Audio Stream - routines
 749  *========================================================================*/
 750
 751 #if USB_DEBUG
 752 static void
 753 uaudio_chan_dump_ep_desc(const usb2_endpoint_descriptor_audio_t *ed)
 754 {
 755         if (ed) {
 756                 DPRINTF("endpoint=%p bLength=%d bDescriptorType=%d \n"
 757                     "bEndpointAddress=%d bmAttributes=0x%x \n"
 758                     "wMaxPacketSize=%d bInterval=%d \n"
 759                     "bRefresh=%d bSynchAddress=%d\n",
 760                     ed, ed->bLength, ed->bDescriptorType,
 761                     ed->bEndpointAddress, ed->bmAttributes,
 762                     UGETW(ed->wMaxPacketSize), ed->bInterval,
 763                     ed->bRefresh, ed->bSynchAddress);
 764         }
 765 }
 766
 767 #endif
 768
 769 static void
 770 uaudio_chan_fill_info_sub(struct uaudio_softc *sc, struct usb_device *udev,
 771     uint32_t rate, uint16_t fps, uint8_t channels,
 772     uint8_t bit_resolution)
 773 {
 774         struct usb_descriptor *desc = NULL;
 775         const struct usb2_audio_streaming_interface_descriptor *asid = NULL;
 776         const struct usb2_audio_streaming_type1_descriptor *asf1d = NULL;
 777         const struct usb2_audio_streaming_endpoint_descriptor *sed = NULL;
 778         const usb2_endpoint_descriptor_audio_t *ed1 = NULL;
 779         const usb2_endpoint_descriptor_audio_t *ed2 = NULL;
 780         struct usb_config_descriptor *cd = usb2_get_config_descriptor(udev);
 781         struct usb_interface_descriptor *id;
 782         const struct uaudio_format *p_fmt;
 783         struct uaudio_chan *chan;
 784         uint16_t curidx = 0xFFFF;
 785         uint16_t lastidx = 0xFFFF;
 786         uint16_t alt_index = 0;
 787         uint16_t wFormat;
 788         uint8_t ep_dir;
 789         uint8_t ep_type;
 790         uint8_t ep_sync;
 791         uint8_t bChannels;
 792         uint8_t bBitResolution;
 793         uint8_t x;
 794         uint8_t audio_if = 0;
 795         uint8_t sample_size;
 796
 797         while ((desc = usb2_desc_foreach(cd, desc))) {
 798
 799                 if ((desc->bDescriptorType == UDESC_INTERFACE) &&
 800                     (desc->bLength >= sizeof(*id))) {
 801
 802                         id = (void *)desc;
 803
 804                         if (id->bInterfaceNumber != lastidx) {
 805                                 lastidx = id->bInterfaceNumber;
 806                                 curidx++;
 807                                 alt_index = 0;
 808
 809                         } else {
 810                                 alt_index++;
 811                         }
 812
 813                         if ((id->bInterfaceClass == UICLASS_AUDIO) &&
 814                             (id->bInterfaceSubClass == UISUBCLASS_AUDIOSTREAM)) {
 815                                 audio_if = 1;
 816                         } else {
 817                                 audio_if = 0;
 818                         }
 819
 820                         if ((id->bInterfaceClass == UICLASS_AUDIO) &&
 821                             (id->bInterfaceSubClass == UISUBCLASS_MIDISTREAM)) {
 822
 823                                 /*
 824                                  * XXX could allow multiple MIDI interfaces
 825                                  * XXX
 826                                  */
 827
 828                                 if ((sc->sc_midi_chan.valid == 0) &&
 829                                     usb2_get_iface(udev, curidx)) {
 830                                         sc->sc_midi_chan.iface_index = curidx;
 831                                         sc->sc_midi_chan.iface_alt_index = alt_index;
 832                                         sc->sc_midi_chan.valid = 1;
 833                                 }
 834                         }
 835                         asid = NULL;
 836                         asf1d = NULL;
 837                         ed1 = NULL;
 838                         ed2 = NULL;
 839                         sed = NULL;
 840                 }
 841                 if ((desc->bDescriptorType == UDESC_CS_INTERFACE) &&
 842                     (desc->bDescriptorSubtype == AS_GENERAL) &&
 843                     (desc->bLength >= sizeof(*asid))) {
 844                         if (asid == NULL) {
 845                                 asid = (void *)desc;
 846                         }
 847                 }
 848                 if ((desc->bDescriptorType == UDESC_CS_INTERFACE) &&
 849                     (desc->bDescriptorSubtype == FORMAT_TYPE) &&
 850                     (desc->bLength >= sizeof(*asf1d))) {
 851                         if (asf1d == NULL) {
 852                                 asf1d = (void *)desc;
 853                                 if (asf1d->bFormatType != FORMAT_TYPE_I) {
 854                                         DPRINTFN(11, "ignored bFormatType = %d\n",
 855                                             asf1d->bFormatType);
 856                                         asf1d = NULL;
 857                                         continue;
 858                                 }
 859                                 if (asf1d->bLength < (sizeof(*asf1d) +
 860                                     (asf1d->bSamFreqType == 0) ? 6 :
 861                                     (asf1d->bSamFreqType * 3))) {
 862                                         DPRINTFN(11, "'asf1d' descriptor is too short\n");
 863                                         asf1d = NULL;
 864                                         continue;
 865                                 }
 866                         }
 867                 }
 868                 if ((desc->bDescriptorType == UDESC_ENDPOINT) &&
 869                     (desc->bLength >= sizeof(*ed1))) {
 870                         if (ed1 == NULL) {
 871                                 ed1 = (void *)desc;
 872                                 if (UE_GET_XFERTYPE(ed1->bmAttributes) != UE_ISOCHRONOUS) {
 873                                         ed1 = NULL;
 874                                 }
 875                         } else {
 876                                 if (ed2 == NULL) {
 877                                         ed2 = (void *)desc;
 878                                         if (UE_GET_XFERTYPE(ed2->bmAttributes) != UE_ISOCHRONOUS) {
 879                                                 ed2 = NULL;
 880                                                 continue;
 881                                         }
 882                                         if (ed2->bSynchAddress != 0) {
 883                                                 DPRINTFN(11, "invalid endpoint: bSynchAddress != 0\n");
 884                                                 ed2 = NULL;
 885                                                 continue;
 886                                         }
 887                                         if (ed2->bEndpointAddress != ed1->bSynchAddress) {
 888                                                 DPRINTFN(11, "invalid endpoint addresses: "
 889                                                     "ep[0]->bSynchAddress=0x%x "
 890                                                     "ep[1]->bEndpointAddress=0x%x\n",
 891                                                     ed1->bSynchAddress,
 892                                                     ed2->bEndpointAddress);
 893                                                 ed2 = NULL;
 894                                                 continue;
 895                                         }
 896                                 }
 897                         }
 898                 }
 899                 if ((desc->bDescriptorType == UDESC_CS_ENDPOINT) &&
 900                     (desc->bDescriptorSubtype == AS_GENERAL) &&
 901                     (desc->bLength >= sizeof(*sed))) {
 902                         if (sed == NULL) {
 903                                 sed = (void *)desc;
 904                         }
 905                 }
 906                 if (audio_if && asid && asf1d && ed1 && sed) {
 907
 908                         ep_dir = UE_GET_DIR(ed1->bEndpointAddress);
 909                         ep_type = UE_GET_ISO_TYPE(ed1->bmAttributes);
 910                         ep_sync = 0;
 911
 912                         if ((sc->sc_uq_au_inp_async) &&
 913                             (ep_dir == UE_DIR_IN) && (ep_type == UE_ISO_ADAPT)) {
 914                                 ep_type = UE_ISO_ASYNC;
 915                         }
 916                         if ((ep_dir == UE_DIR_IN) && (ep_type == UE_ISO_ADAPT)) {
 917                                 ep_sync = 1;
 918                         }
 919                         if ((ep_dir != UE_DIR_IN) && (ep_type == UE_ISO_ASYNC)) {
 920                                 ep_sync = 1;
 921                         }
 922                         /* Ignore sync endpoint information until further. */
 923 #if 0
 924                         if (ep_sync && (!ed2)) {
 925                                 continue;
 926                         }
 927                         /*
 928                          * we can't handle endpoints that need a sync pipe
 929                          * yet
 930                          */
 931
 932                         if (ep_sync) {
 933                                 DPRINTF("skipped sync interface\n");
 934                                 audio_if = 0;
 935                                 continue;
 936                         }
 937 #endif
 938
 939                         wFormat = UGETW(asid->wFormatTag);
 940                         bChannels = UAUDIO_MAX_CHAN(asf1d->bNrChannels);
 941                         bBitResolution = asf1d->bBitResolution;
 942
 943                         if (asf1d->bSamFreqType == 0) {
 944                                 DPRINTFN(16, "Sample rate: %d-%dHz\n",
 945                                     UA_SAMP_LO(asf1d), UA_SAMP_HI(asf1d));
 946
 947                                 if ((rate >= UA_SAMP_LO(asf1d)) &&
 948                                     (rate <= UA_SAMP_HI(asf1d))) {
 949                                         goto found_rate;
 950                                 }
 951                         } else {
 952
 953                                 for (x = 0; x < asf1d->bSamFreqType; x++) {
 954                                         DPRINTFN(16, "Sample rate = %dHz\n",
 955                                             UA_GETSAMP(asf1d, x));
 956
 957                                         if (rate == UA_GETSAMP(asf1d, x)) {
 958                                                 goto found_rate;
 959                                         }
 960                                 }
 961                         }
 962
 963                         audio_if = 0;
 964                         continue;
 965
 966         found_rate:
 967
 968                         for (p_fmt = uaudio_formats;
 969                             p_fmt->wFormat;
 970                             p_fmt++) {
 971                                 if ((p_fmt->wFormat == wFormat) &&
 972                                     (p_fmt->bPrecision == bBitResolution)) {
 973                                         goto found_format;
 974                                 }
 975                         }
 976
 977                         audio_if = 0;
 978                         continue;
 979
 980         found_format:
 981
 982                         if ((bChannels == channels) &&
 983                             (bBitResolution == bit_resolution)) {
 984
 985                                 chan = (ep_dir == UE_DIR_IN) ?
 986                                     &sc->sc_rec_chan :
 987                                     &sc->sc_play_chan;
 988
 989                                 if ((chan->valid == 0) && usb2_get_iface(udev, curidx)) {
 990
 991                                         chan->valid = 1;
 992 #if USB_DEBUG
 993                                         uaudio_chan_dump_ep_desc(ed1);
 994                                         uaudio_chan_dump_ep_desc(ed2);
 995
 996                                         if (sed->bmAttributes & UA_SED_FREQ_CONTROL) {
 997                                                 DPRINTFN(2, "FREQ_CONTROL\n");
 998                                         }
 999                                         if (sed->bmAttributes & UA_SED_PITCH_CONTROL) {
1000                                                 DPRINTFN(2, "PITCH_CONTROL\n");
1001                                         }
1002 #endif
1003                                         DPRINTF("Sample rate = %dHz, channels = %d, "
1004                                             "bits = %d, format = %s\n", rate, channels,
1005                                             bit_resolution, p_fmt->description);
1006
1007                                         chan->sample_rate = rate;
1008                                         chan->p_asid = asid;
1009                                         chan->p_asf1d = asf1d;
1010                                         chan->p_ed1 = ed1;
1011                                         chan->p_ed2 = ed2;
1012                                         chan->p_fmt = p_fmt;
1013                                         chan->p_sed = sed;
1014                                         chan->iface_index = curidx;
1015                                         chan->iface_alt_index = alt_index;
1016
1017                                         if (ep_dir == UE_DIR_IN)
1018                                                 chan->usb2_cfg =
1019                                                     uaudio_cfg_record;
1020                                         else
1021                                                 chan->usb2_cfg =
1022                                                     uaudio_cfg_play;
1023
1024                                         sample_size = ((
1025                                             UAUDIO_MAX_CHAN(chan->p_asf1d->bNrChannels) *
1026                                             chan->p_asf1d->bBitResolution) / 8);
1027
1028                                         /*
1029                                          * NOTE: "chan->bytes_per_frame"
1030                                          * should not be zero!
1031                                          */
1032                                         chan->bytes_per_frame = ((rate / fps) * sample_size);
1033
1034                                         if (sc->sc_sndstat_valid) {
1035                                                 sbuf_printf(&sc->sc_sndstat, "\n\t"
1036                                                     "mode %d.%d:(%s) %dch, %d/%dbit, %s, %dHz",
1037                                                     curidx, alt_index,
1038                                                     (ep_dir == UE_DIR_IN) ? "input" : "output",
1039                                                     asf1d->bNrChannels, asf1d->bBitResolution,
1040                                                     asf1d->bSubFrameSize * 8,
1041                                                     p_fmt->description, rate);
1042                                         }
1043                                 }
1044                         }
1045                         audio_if = 0;
1046                         continue;
1047                 }
1048         }
1049 }
1050
1051 static void
1052 uaudio_chan_fill_info(struct uaudio_softc *sc, struct usb_device *udev)
1053 {
1054         uint32_t rate = uaudio_default_rate;
1055         uint32_t z;
1056         uint16_t fps = usb2_get_isoc_fps(udev);
1057         uint8_t bits = uaudio_default_bits;
1058         uint8_t y;
1059         uint8_t channels = uaudio_default_channels;
1060         uint8_t x;
1061
1062         bits -= (bits % 8);
1063         if ((bits == 0) || (bits > 32)) {
1064                 /* set a valid value */
1065                 bits = 32;
1066         }
1067         rate -= (rate % fps);
1068         if ((rate == 0) || (rate > 192000)) {
1069                 /* set a valid value */
1070                 rate = 192000 - (192000 % fps);
1071         }
1072         if ((channels == 0) || (channels > 2)) {
1073                 /* set a valid value */
1074                 channels = 2;
1075         }
1076         if (sbuf_new(&sc->sc_sndstat, NULL, 4096, SBUF_AUTOEXTEND)) {
1077                 sc->sc_sndstat_valid = 1;
1078         }
1079         /* try to search for a valid config */
1080
1081         for (x = channels; x; x--) {
1082                 for (y = bits; y; y -= 8) {
1083                         for (z = rate; z; z -= fps) {
1084                                 uaudio_chan_fill_info_sub(sc, udev, z, fps, x, y);
1085
1086                                 if (sc->sc_rec_chan.valid &&
1087                                     sc->sc_play_chan.valid) {
1088                                         goto done;
1089                                 }
1090                         }
1091                 }
1092         }
1093
1094 done:
1095         if (sc->sc_sndstat_valid) {
1096                 sbuf_finish(&sc->sc_sndstat);
1097         }
1098 }
1099
1100 static void
1101 uaudio_chan_play_callback(struct usb_xfer *xfer)
1102 {
1103         struct uaudio_chan *ch = xfer->priv_sc;
1104         uint32_t *p_len = xfer->frlengths;
1105         uint32_t total;
1106         uint32_t blockcount;
1107         uint32_t n;
1108         uint32_t offset;
1109
1110         /* allow dynamic sizing of play buffer */
1111         total = ch->intr_size;
1112
1113         /* allow dynamic sizing of play buffer */
1114         blockcount = total / ch->bytes_per_frame;
1115
1116         /* align units */
1117         blockcount -= (blockcount % UAUDIO_MINFRAMES);
1118
1119         /* range check - min */
1120         if (blockcount == 0) {
1121                 blockcount = UAUDIO_MINFRAMES;
1122         }
1123         /* range check - max */
1124         if (blockcount > xfer->max_frame_count) {
1125                 blockcount = xfer->max_frame_count;
1126         }
1127         /* compute the total length */
1128         total = blockcount * ch->bytes_per_frame;
1129
1130         switch (USB_GET_STATE(xfer)) {
1131         case USB_ST_TRANSFERRED:
1132 tr_transferred:
1133                 if (xfer->actlen < xfer->sumlen) {
1134                         DPRINTF("short transfer, "
1135                             "%d of %d bytes\n", xfer->actlen, total);
1136                 }
1137                 chn_intr(ch->pcm_ch);
1138
1139         case USB_ST_SETUP:
1140                 if (ch->bytes_per_frame > xfer->max_frame_size) {
1141                         DPRINTF("bytes per transfer, %d, "
1142                             "exceeds maximum, %d!\n",
1143                             ch->bytes_per_frame,
1144                             xfer->max_frame_size);
1145                         break;
1146                 }
1147                 /* setup frame length */
1148                 xfer->nframes = blockcount;
1149                 for (n = 0; n != blockcount; n++) {
1150                         p_len[n] = ch->bytes_per_frame;
1151                 }
1152
1153                 if (ch->end == ch->start) {
1154                         DPRINTF("no buffer!\n");
1155                         break;
1156                 }
1157                 DPRINTFN(6, "transfer %d bytes\n", total);
1158
1159                 offset = 0;
1160
1161                 while (total > 0) {
1162
1163                         n = (ch->end - ch->cur);
1164                         if (n > total) {
1165                                 n = total;
1166                         }
1167                         usb2_copy_in(xfer->frbuffers, offset, ch->cur, n);
1168
1169                         total -= n;
1170                         ch->cur += n;
1171                         offset += n;
1172
1173                         if (ch->cur >= ch->end) {
1174                                 ch->cur = ch->start;
1175                         }
1176                 }
1177
1178                 usb2_start_hardware(xfer);
1179                 break;
1180
1181         default:                        /* Error */
1182                 if (xfer->error == USB_ERR_CANCELLED) {
1183                         break;
1184                 }
1185                 goto tr_transferred;
1186         }
1187 }
1188
1189 static void
1190 uaudio_chan_record_callback(struct usb_xfer *xfer)
1191 {
1192         struct uaudio_chan *ch = xfer->priv_sc;
1193         uint32_t *p_len = xfer->frlengths;
1194         uint32_t n;
1195         uint32_t m;
1196         uint32_t total;
1197         uint32_t blockcount;
1198         uint32_t offset0;
1199         uint32_t offset1;
1200
1201         /* allow dynamic sizing of play buffer */
1202         total = ch->intr_size;
1203
1204         /* allow dynamic sizing of play buffer */
1205         blockcount = total / ch->bytes_per_frame;
1206
1207         /* align units */
1208         blockcount -= (blockcount % UAUDIO_MINFRAMES);
1209
1210         /* range check - min */
1211         if (blockcount == 0) {
1212                 blockcount = UAUDIO_MINFRAMES;
1213         }
1214         /* range check - max */
1215         if (blockcount > xfer->max_frame_count) {
1216                 blockcount = xfer->max_frame_count;
1217         }
1218         /* compute the total length */
1219         total = blockcount * ch->bytes_per_frame;
1220
1221         switch (USB_GET_STATE(xfer)) {
1222         case USB_ST_TRANSFERRED:
1223 tr_transferred:
1224                 if (xfer->actlen < total) {
1225                         DPRINTF("short transfer, "
1226                             "%d of %d bytes\n", xfer->actlen, total);
1227                 } else {
1228                         DPRINTFN(6, "transferred %d bytes\n", xfer->actlen);
1229                 }
1230
1231                 offset0 = 0;
1232
1233                 for (n = 0; n != xfer->nframes; n++) {
1234
1235                         offset1 = offset0;
1236
1237                         while (p_len[n] > 0) {
1238
1239                                 m = (ch->end - ch->cur);
1240
1241                                 if (m > p_len[n]) {
1242                                         m = p_len[n];
1243                                 }
1244                                 usb2_copy_out(xfer->frbuffers, offset1, ch->cur, m);
1245
1246                                 p_len[n] -= m;
1247                                 offset1 += m;
1248                                 ch->cur += m;
1249
1250                                 if (ch->cur >= ch->end) {
1251                                         ch->cur = ch->start;
1252                                 }
1253                         }
1254
1255                         offset0 += ch->bytes_per_frame;
1256                 }
1257
1258                 chn_intr(ch->pcm_ch);
1259
1260         case USB_ST_SETUP:
1261                 if (ch->bytes_per_frame > xfer->max_frame_size) {
1262                         DPRINTF("bytes per transfer, %d, "
1263                             "exceeds maximum, %d!\n",
1264                             ch->bytes_per_frame,
1265                             xfer->max_frame_size);
1266                         return;
1267                 }
1268                 xfer->nframes = blockcount;
1269                 for (n = 0; n != xfer->nframes; n++) {
1270                         p_len[n] = ch->bytes_per_frame;
1271                 }
1272
1273                 if (ch->end == ch->start) {
1274                         DPRINTF("no buffer!\n");
1275                         return;
1276                 }
1277                 usb2_start_hardware(xfer);
1278                 return;
1279
1280         default:                        /* Error */
1281                 if (xfer->error == USB_ERR_CANCELLED) {
1282                         return;
1283                 }
1284                 goto tr_transferred;
1285         }
1286 }
1287
1288 void   *
1289 uaudio_chan_init(struct uaudio_softc *sc, struct snd_dbuf *b,
1290     struct pcm_channel *c, int dir)
1291 {
1292         struct uaudio_chan *ch = ((dir == PCMDIR_PLAY) ?
1293             &sc->sc_play_chan : &sc->sc_rec_chan);
1294         uint32_t buf_size;
1295         uint8_t endpoint;
1296         uint8_t iface_index;
1297         uint8_t alt_index;
1298         usb_error_t err;
1299
1300         /* compute required buffer size */
1301         buf_size = (ch->bytes_per_frame * UAUDIO_MINFRAMES);
1302
1303         /* setup interrupt interval */
1304         ch->intr_size = buf_size;
1305
1306         /* double buffering */
1307         buf_size *= 2;
1308
1309         ch->buf = malloc(buf_size, M_DEVBUF, M_WAITOK | M_ZERO);
1310         if (ch->buf == NULL) {
1311                 goto error;
1312         }
1313         if (sndbuf_setup(b, ch->buf, buf_size) != 0) {
1314                 goto error;
1315         }
1316         ch->start = ch->buf;
1317         ch->end = ch->buf + buf_size;
1318         ch->cur = ch->buf;
1319         ch->pcm_ch = c;
1320         ch->pcm_mtx = c->lock;
1321         ch->pcm_buf = b;
1322
1323         if (ch->pcm_mtx == NULL) {
1324                 DPRINTF("ERROR: PCM channels does not have a mutex!\n");
1325                 goto error;
1326         }
1327         /* setup play/record format */
1328
1329         ch->pcm_cap.fmtlist = ch->pcm_format;
1330
1331         ch->pcm_format[0] = 0;
1332         ch->pcm_format[1] = 0;
1333
1334         ch->pcm_cap.minspeed = ch->sample_rate;
1335         ch->pcm_cap.maxspeed = ch->sample_rate;
1336
1337         ch->pcm_cap.fmtlist[0] = ch->p_fmt->freebsd_fmt;
1338
1339         if (ch->p_asf1d->bNrChannels >= 2) {
1340                 ch->pcm_cap.fmtlist[0] |= AFMT_STEREO;
1341         }
1342         ch->pcm_cap.fmtlist[1] = 0;
1343
1344
1345         /* set alternate interface corresponding to the mode */
1346
1347         endpoint = ch->p_ed1->bEndpointAddress;
1348         iface_index = ch->iface_index;
1349         alt_index = ch->iface_alt_index;
1350
1351         DPRINTF("endpoint=0x%02x, speed=%d, iface=%d alt=%d\n",
1352             endpoint, ch->sample_rate, iface_index, alt_index);
1353
1354         err = usb2_set_alt_interface_index(sc->sc_udev, iface_index, alt_index);
1355         if (err) {
1356                 DPRINTF("setting of alternate index failed: %s!\n",
1357                     usb2_errstr(err));
1358                 goto error;
1359         }
1360         usb2_set_parent_iface(sc->sc_udev, iface_index, sc->sc_mixer_iface_index);
1361
1362         /*
1363          * If just one sampling rate is supported,
1364          * no need to call "uaudio_set_speed()".
1365          * Roland SD-90 freezes by a SAMPLING_FREQ_CONTROL request.
1366          */
1367         if (ch->p_asf1d->bSamFreqType != 1) {
1368                 if (uaudio_set_speed(sc->sc_udev, endpoint, ch->sample_rate)) {
1369                         /*
1370                          * If the endpoint is adaptive setting the speed may
1371                          * fail.
1372                          */
1373                         DPRINTF("setting of sample rate failed! (continuing anyway)\n");
1374                 }
1375         }
1376         if (usb2_transfer_setup(sc->sc_udev, &iface_index, ch->xfer,
1377             ch->usb2_cfg, UAUDIO_NCHANBUFS, ch, ch->pcm_mtx)) {
1378                 DPRINTF("could not allocate USB transfers!\n");
1379                 goto error;
1380         }
1381         return (ch);
1382
1383 error:
1384         uaudio_chan_free(ch);
1385         return (NULL);
1386 }
1387
1388 int
1389 uaudio_chan_free(struct uaudio_chan *ch)
1390 {
1391         if (ch->buf != NULL) {
1392                 free(ch->buf, M_DEVBUF);
1393                 ch->buf = NULL;
1394         }
1395         usb2_transfer_unsetup(ch->xfer, UAUDIO_NCHANBUFS);
1396
1397         ch->valid = 0;
1398
1399         return (0);
1400 }
1401
1402 int
1403 uaudio_chan_set_param_blocksize(struct uaudio_chan *ch, uint32_t blocksize)
1404 {
1405         uaudio_chan_set_param_fragments(ch, blocksize, 0 - 1);
1406
1407         return (ch->block_size);
1408 }
1409
1410 int
1411 uaudio_chan_set_param_fragments(struct uaudio_chan *ch, uint32_t blocksize,
1412     uint32_t blockcount)
1413 {
1414         /* we only support one size */
1415         blocksize = ch->intr_size;
1416         blockcount = 2;
1417
1418         if ((sndbuf_getblksz(ch->pcm_buf) != blocksize) ||
1419             (sndbuf_getblkcnt(ch->pcm_buf) != blockcount)) {
1420                 DPRINTFN(1, "resizing to %u x "
1421                     "%u bytes\n", blockcount, blocksize);
1422                 if (sndbuf_resize(ch->pcm_buf, blockcount, blocksize)) {
1423                         DPRINTFN(0, "failed to resize sound buffer, count=%u, "
1424                             "size=%u\n", blockcount, blocksize);
1425                 }
1426         }
1427         ch->block_size = sndbuf_getblksz(ch->pcm_buf);
1428
1429         return (1);
1430 }
1431
1432 int
1433 uaudio_chan_set_param_speed(struct uaudio_chan *ch, uint32_t speed)
1434 {
1435         if (speed != ch->sample_rate) {
1436                 DPRINTF("rate conversion required\n");
1437         }
1438         return (ch->sample_rate);
1439 }
1440
1441 int
1442 uaudio_chan_getptr(struct uaudio_chan *ch)
1443 {
1444         return (ch->cur - ch->start);
1445 }
1446
1447 struct pcmchan_caps *
1448 uaudio_chan_getcaps(struct uaudio_chan *ch)
1449 {
1450         return (&ch->pcm_cap);
1451 }
1452
1453 int
1454 uaudio_chan_set_param_format(struct uaudio_chan *ch, uint32_t format)
1455 {
1456         ch->format = format;
1457         return (0);
1458 }
1459
1460 int
1461 uaudio_chan_start(struct uaudio_chan *ch)
1462 {
1463         ch->cur = ch->start;
1464
1465 #if (UAUDIO_NCHANBUFS != 2)
1466 #error "please update code"
1467 #endif
1468         if (ch->xfer[0]) {
1469                 usb2_transfer_start(ch->xfer[0]);
1470         }
1471         if (ch->xfer[1]) {
1472                 usb2_transfer_start(ch->xfer[1]);
1473         }
1474         return (0);
1475 }
1476
1477 int
1478 uaudio_chan_stop(struct uaudio_chan *ch)
1479 {
1480 #if (UAUDIO_NCHANBUFS != 2)
1481 #error "please update code"
1482 #endif
1483         usb2_transfer_stop(ch->xfer[0]);
1484         usb2_transfer_stop(ch->xfer[1]);
1485         return (0);
1486 }
1487
1488 /*========================================================================*
1489  * AC - Audio Controller - routines
1490  *========================================================================*/
1491
1492 static void
1493 uaudio_mixer_add_ctl_sub(struct uaudio_softc *sc, struct uaudio_mixer_node *mc)
1494 {
1495         struct uaudio_mixer_node *p_mc_new =
1496         malloc(sizeof(*p_mc_new), M_USBDEV, M_WAITOK);
1497
1498         if (p_mc_new) {
1499                 bcopy(mc, p_mc_new, sizeof(*p_mc_new));
1500                 p_mc_new->next = sc->sc_mixer_root;
1501                 sc->sc_mixer_root = p_mc_new;
1502                 sc->sc_mixer_count++;
1503         } else {
1504                 DPRINTF("out of memory\n");
1505         }
1506 }
1507
1508 static void
1509 uaudio_mixer_add_ctl(struct uaudio_softc *sc, struct uaudio_mixer_node *mc)
1510 {
1511         int32_t res;
1512
1513         if (mc->class < UAC_NCLASSES) {
1514                 DPRINTF("adding %s.%d\n",
1515                     uac_names[mc->class], mc->ctl);
1516         } else {
1517                 DPRINTF("adding %d\n", mc->ctl);
1518         }
1519
1520         mc->delta = 0;
1521         if (mc->type == MIX_ON_OFF) {
1522                 mc->minval = 0;
1523                 mc->maxval = 1;
1524         } else if (mc->type == MIX_SELECTOR) {
1525
1526         } else {
1527
1528                 /* determine min and max values */
1529
1530                 mc->minval = uaudio_mixer_get(sc->sc_udev, GET_MIN, mc);
1531
1532                 mc->minval = uaudio_mixer_signext(mc->type, mc->minval);
1533
1534                 mc->maxval = uaudio_mixer_get(sc->sc_udev, GET_MAX, mc);
1535
1536                 mc->maxval = 1 + uaudio_mixer_signext(mc->type, mc->maxval);
1537
1538                 mc->mul = mc->maxval - mc->minval;
1539                 if (mc->mul == 0) {
1540                         mc->mul = 1;
1541                 }
1542                 res = uaudio_mixer_get(sc->sc_udev, GET_RES, mc);
1543                 if (res > 0) {
1544                         mc->delta = ((res * 255) + (mc->mul / 2)) / mc->mul;
1545                 }
1546         }
1547
1548         if (mc->maxval < mc->minval) {
1549                 mc->maxval = mc->minval;
1550         }
1551         uaudio_mixer_add_ctl_sub(sc, mc);
1552
1553 #if USB_DEBUG
1554         if (uaudio_debug > 2) {
1555                 uint8_t i;
1556
1557                 for (i = 0; i < mc->nchan; i++) {
1558                         DPRINTF("[mix] wValue=%04x\n", mc->wValue[0]);
1559                 }
1560                 DPRINTF("[mix] wIndex=%04x type=%d ctl='%d' "
1561                     "min=%d max=%d\n",
1562                     mc->wIndex, mc->type, mc->ctl,
1563                     mc->minval, mc->maxval);
1564         }
1565 #endif
1566 }
1567
1568 static void
1569 uaudio_mixer_add_input(struct uaudio_softc *sc,
1570     const struct uaudio_terminal_node *iot, int id)
1571 {
1572 #if USB_DEBUG
1573         const struct usb2_audio_input_terminal *d = iot[id].u.it;
1574
1575         DPRINTFN(3, "bTerminalId=%d wTerminalType=0x%04x "
1576             "bAssocTerminal=%d bNrChannels=%d wChannelConfig=%d "
1577             "iChannelNames=%d\n",
1578             d->bTerminalId, UGETW(d->wTerminalType), d->bAssocTerminal,
1579             d->bNrChannels, UGETW(d->wChannelConfig),
1580             d->iChannelNames);
1581 #endif
1582 }
1583
1584 static void
1585 uaudio_mixer_add_output(struct uaudio_softc *sc,
1586     const struct uaudio_terminal_node *iot, int id)
1587 {
1588 #if USB_DEBUG
1589         const struct usb2_audio_output_terminal *d = iot[id].u.ot;
1590
1591         DPRINTFN(3, "bTerminalId=%d wTerminalType=0x%04x "
1592             "bAssocTerminal=%d bSourceId=%d iTerminal=%d\n",
1593             d->bTerminalId, UGETW(d->wTerminalType), d->bAssocTerminal,
1594             d->bSourceId, d->iTerminal);
1595 #endif
1596 }
1597
1598 static void
1599 uaudio_mixer_add_mixer(struct uaudio_softc *sc,
1600     const struct uaudio_terminal_node *iot, int id)
1601 {
1602         struct uaudio_mixer_node mix;
1603
1604         const struct usb2_audio_mixer_unit_0 *d0 = iot[id].u.mu;
1605         const struct usb2_audio_mixer_unit_1 *d1;
1606
1607         uint32_t bno;                   /* bit number */
1608         uint32_t p;                     /* bit number accumulator */
1609         uint32_t mo;                    /* matching outputs */
1610         uint32_t mc;                    /* matching channels */
1611         uint32_t ichs;                  /* input channels */
1612         uint32_t ochs;                  /* output channels */
1613         uint32_t c;
1614         uint32_t chs;                   /* channels */
1615         uint32_t i;
1616         uint32_t o;
1617
1618         DPRINTFN(3, "bUnitId=%d bNrInPins=%d\n",
1619             d0->bUnitId, d0->bNrInPins);
1620
1621         /* compute the number of input channels */
1622
1623         ichs = 0;
1624         for (i = 0; i < d0->bNrInPins; i++) {
1625                 ichs += (uaudio_mixer_get_cluster(d0->baSourceId[i], iot)
1626                     .bNrChannels);
1627         }
1628
1629         d1 = (const void *)(d0->baSourceId + d0->bNrInPins);
1630
1631         /* and the number of output channels */
1632
1633         ochs = d1->bNrChannels;
1634
1635         DPRINTFN(3, "ichs=%d ochs=%d\n", ichs, ochs);
1636
1637         bzero(&mix, sizeof(mix));
1638
1639         mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
1640         uaudio_mixer_determine_class(&iot[id], &mix);
1641         mix.type = MIX_SIGNED_16;
1642
1643         if (uaudio_mixer_verify_desc(d0, ((ichs * ochs) + 7) / 8) == NULL) {
1644                 return;
1645         }
1646         for (p = i = 0; i < d0->bNrInPins; i++) {
1647                 chs = uaudio_mixer_get_cluster(d0->baSourceId[i], iot).bNrChannels;
1648                 mc = 0;
1649                 for (c = 0; c < chs; c++) {
1650                         mo = 0;
1651                         for (o = 0; o < ochs; o++) {
1652                                 bno = ((p + c) * ochs) + o;
1653                                 if (BIT_TEST(d1->bmControls, bno)) {
1654                                         mo++;
1655                                 }
1656                         }
1657                         if (mo == 1) {
1658                                 mc++;
1659                         }
1660                 }
1661                 if ((mc == chs) && (chs <= MIX_MAX_CHAN)) {
1662
1663                         /* repeat bit-scan */
1664
1665                         mc = 0;
1666                         for (c = 0; c < chs; c++) {
1667                                 for (o = 0; o < ochs; o++) {
1668                                         bno = ((p + c) * ochs) + o;
1669                                         if (BIT_TEST(d1->bmControls, bno)) {
1670                                                 mix.wValue[mc++] = MAKE_WORD(p + c + 1, o + 1);
1671                                         }
1672                                 }
1673                         }
1674                         mix.nchan = chs;
1675                         uaudio_mixer_add_ctl(sc, &mix);
1676                 } else {
1677                         /* XXX */
1678                 }
1679                 p += chs;
1680         }
1681 }
1682
1683 static void
1684 uaudio_mixer_add_selector(struct uaudio_softc *sc,
1685     const struct uaudio_terminal_node *iot, int id)
1686 {
1687         const struct usb2_audio_selector_unit *d = iot[id].u.su;
1688         struct uaudio_mixer_node mix;
1689         uint16_t i;
1690
1691         DPRINTFN(3, "bUnitId=%d bNrInPins=%d\n",
1692             d->bUnitId, d->bNrInPins);
1693
1694         if (d->bNrInPins == 0) {
1695                 return;
1696         }
1697         bzero(&mix, sizeof(mix));
1698
1699         mix.wIndex = MAKE_WORD(d->bUnitId, sc->sc_mixer_iface_no);
1700         mix.wValue[0] = MAKE_WORD(0, 0);
1701         uaudio_mixer_determine_class(&iot[id], &mix);
1702         mix.nchan = 1;
1703         mix.type = MIX_SELECTOR;
1704
1705         mix.ctl = SOUND_MIXER_NRDEVICES;
1706         mix.minval = 1;
1707         mix.maxval = d->bNrInPins;
1708
1709         if (mix.maxval > MAX_SELECTOR_INPUT_PIN) {
1710                 mix.maxval = MAX_SELECTOR_INPUT_PIN;
1711         }
1712         mix.mul = (mix.maxval - mix.minval);
1713         for (i = 0; i < MAX_SELECTOR_INPUT_PIN; i++) {
1714                 mix.slctrtype[i] = SOUND_MIXER_NRDEVICES;
1715         }
1716
1717         for (i = 0; i < mix.maxval; i++) {
1718                 mix.slctrtype[i] = uaudio_mixer_feature_name
1719                     (&iot[d->baSourceId[i]], &mix);
1720         }
1721
1722         mix.class = 0;                  /* not used */
1723
1724         uaudio_mixer_add_ctl(sc, &mix);
1725 }
1726
1727 static uint32_t
1728 uaudio_mixer_feature_get_bmaControls(const struct usb2_audio_feature_unit *d,
1729     uint8_t index)
1730 {
1731         uint32_t temp = 0;
1732         uint32_t offset = (index * d->bControlSize);
1733
1734         if (d->bControlSize > 0) {
1735                 temp |= d->bmaControls[offset];
1736                 if (d->bControlSize > 1) {
1737                         temp |= d->bmaControls[offset + 1] << 8;
1738                         if (d->bControlSize > 2) {
1739                                 temp |= d->bmaControls[offset + 2] << 16;
1740                                 if (d->bControlSize > 3) {
1741                                         temp |= d->bmaControls[offset + 3] << 24;
1742                                 }
1743                         }
1744                 }
1745         }
1746         return (temp);
1747 }
1748
1749 static void
1750 uaudio_mixer_add_feature(struct uaudio_softc *sc,
1751     const struct uaudio_terminal_node *iot, int id)
1752 {
1753         const struct usb2_audio_feature_unit *d = iot[id].u.fu;
1754         struct uaudio_mixer_node mix;
1755         uint32_t fumask;
1756         uint32_t mmask;
1757         uint32_t cmask;
1758         uint16_t mixernumber;
1759         uint8_t nchan;
1760         uint8_t chan;
1761         uint8_t ctl;
1762         uint8_t i;
1763
1764         if (d->bControlSize == 0) {
1765                 return;
1766         }
1767         bzero(&mix, sizeof(mix));
1768
1769         nchan = (d->bLength - 7) / d->bControlSize;
1770         mmask = uaudio_mixer_feature_get_bmaControls(d, 0);
1771         cmask = 0;
1772
1773         if (nchan == 0) {
1774                 return;
1775         }
1776         /* figure out what we can control */
1777
1778         for (chan = 1; chan < nchan; chan++) {
1779                 DPRINTFN(10, "chan=%d mask=%x\n",
1780                     chan, uaudio_mixer_feature_get_bmaControls(d, chan));
1781
1782                 cmask |= uaudio_mixer_feature_get_bmaControls(d, chan);
1783         }
1784
1785         if (nchan > MIX_MAX_CHAN) {
1786                 nchan = MIX_MAX_CHAN;
1787         }
1788         mix.wIndex = MAKE_WORD(d->bUnitId, sc->sc_mixer_iface_no);
1789
1790         for (ctl = 1; ctl <= LOUDNESS_CONTROL; ctl++) {
1791
1792                 fumask = FU_MASK(ctl);
1793
1794                 DPRINTFN(5, "ctl=%d fumask=0x%04x\n",
1795                     ctl, fumask);
1796
1797                 if (mmask & fumask) {
1798                         mix.nchan = 1;
1799                         mix.wValue[0] = MAKE_WORD(ctl, 0);
1800                 } else if (cmask & fumask) {
1801                         mix.nchan = nchan - 1;
1802                         for (i = 1; i < nchan; i++) {
1803                                 if (uaudio_mixer_feature_get_bmaControls(d, i) & fumask)
1804                                         mix.wValue[i - 1] = MAKE_WORD(ctl, i);
1805                                 else
1806                                         mix.wValue[i - 1] = -1;
1807                         }
1808                 } else {
1809                         continue;
1810                 }
1811
1812                 mixernumber = uaudio_mixer_feature_name(&iot[id], &mix);
1813
1814                 switch (ctl) {
1815                 case MUTE_CONTROL:
1816                         mix.type = MIX_ON_OFF;
1817                         mix.ctl = SOUND_MIXER_NRDEVICES;
1818                         break;
1819
1820                 case VOLUME_CONTROL:
1821                         mix.type = MIX_SIGNED_16;
1822                         mix.ctl = mixernumber;
1823                         break;
1824
1825                 case BASS_CONTROL:
1826                         mix.type = MIX_SIGNED_8;
1827                         mix.ctl = SOUND_MIXER_BASS;
1828                         break;
1829
1830                 case MID_CONTROL:
1831                         mix.type = MIX_SIGNED_8;
1832                         mix.ctl = SOUND_MIXER_NRDEVICES;        /* XXXXX */
1833                         break;
1834
1835                 case TREBLE_CONTROL:
1836                         mix.type = MIX_SIGNED_8;
1837                         mix.ctl = SOUND_MIXER_TREBLE;
1838                         break;
1839
1840                 case GRAPHIC_EQUALIZER_CONTROL:
1841                         continue;       /* XXX don't add anything */
1842                         break;
1843
1844                 case AGC_CONTROL:
1845                         mix.type = MIX_ON_OFF;
1846                         mix.ctl = SOUND_MIXER_NRDEVICES;        /* XXXXX */
1847                         break;
1848
1849                 case DELAY_CONTROL:
1850                         mix.type = MIX_UNSIGNED_16;
1851                         mix.ctl = SOUND_MIXER_NRDEVICES;        /* XXXXX */
1852                         break;
1853
1854                 case BASS_BOOST_CONTROL:
1855                         mix.type = MIX_ON_OFF;
1856                         mix.ctl = SOUND_MIXER_NRDEVICES;        /* XXXXX */
1857                         break;
1858
1859                 case LOUDNESS_CONTROL:
1860                         mix.type = MIX_ON_OFF;
1861                         mix.ctl = SOUND_MIXER_LOUD;     /* Is this correct ? */
1862                         break;
1863
1864                 default:
1865                         mix.type = MIX_UNKNOWN;
1866                         break;
1867                 }
1868
1869                 if (mix.type != MIX_UNKNOWN) {
1870                         uaudio_mixer_add_ctl(sc, &mix);
1871                 }
1872         }
1873 }
1874
1875 static void
1876 uaudio_mixer_add_processing_updown(struct uaudio_softc *sc,
1877     const struct uaudio_terminal_node *iot, int id)
1878 {
1879         const struct usb2_audio_processing_unit_0 *d0 = iot[id].u.pu;
1880         const struct usb2_audio_processing_unit_1 *d1 =
1881         (const void *)(d0->baSourceId + d0->bNrInPins);
1882         const struct usb2_audio_processing_unit_updown *ud =
1883         (const void *)(d1->bmControls + d1->bControlSize);
1884         struct uaudio_mixer_node mix;
1885         uint8_t i;
1886
1887         if (uaudio_mixer_verify_desc(d0, sizeof(*ud)) == NULL) {
1888                 return;
1889         }
1890         if (uaudio_mixer_verify_desc(d0, sizeof(*ud) + (2 * ud->bNrModes))
1891             == NULL) {
1892                 return;
1893         }
1894         DPRINTFN(3, "bUnitId=%d bNrModes=%d\n",
1895             d0->bUnitId, ud->bNrModes);
1896
1897         if (!(d1->bmControls[0] & UA_PROC_MASK(UD_MODE_SELECT_CONTROL))) {
1898                 DPRINTF("no mode select\n");
1899                 return;
1900         }
1901         bzero(&mix, sizeof(mix));
1902
1903         mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
1904         mix.nchan = 1;
1905         mix.wValue[0] = MAKE_WORD(UD_MODE_SELECT_CONTROL, 0);
1906         uaudio_mixer_determine_class(&iot[id], &mix);
1907         mix.type = MIX_ON_OFF;          /* XXX */
1908
1909         for (i = 0; i < ud->bNrModes; i++) {
1910                 DPRINTFN(3, "i=%d bm=0x%x\n", i, UGETW(ud->waModes[i]));
1911                 /* XXX */
1912         }
1913
1914         uaudio_mixer_add_ctl(sc, &mix);
1915 }
1916
1917 static void
1918 uaudio_mixer_add_processing(struct uaudio_softc *sc,
1919     const struct uaudio_terminal_node *iot, int id)
1920 {
1921         const struct usb2_audio_processing_unit_0 *d0 = iot[id].u.pu;
1922         const struct usb2_audio_processing_unit_1 *d1 =
1923         (const void *)(d0->baSourceId + d0->bNrInPins);
1924         struct uaudio_mixer_node mix;
1925         uint16_t ptype;
1926
1927         bzero(&mix, sizeof(mix));
1928
1929         ptype = UGETW(d0->wProcessType);
1930
1931         DPRINTFN(3, "wProcessType=%d bUnitId=%d "
1932             "bNrInPins=%d\n", ptype, d0->bUnitId, d0->bNrInPins);
1933
1934         if (d1->bControlSize == 0) {
1935                 return;
1936         }
1937         if (d1->bmControls[0] & UA_PROC_ENABLE_MASK) {
1938                 mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
1939                 mix.nchan = 1;
1940                 mix.wValue[0] = MAKE_WORD(XX_ENABLE_CONTROL, 0);
1941                 uaudio_mixer_determine_class(&iot[id], &mix);
1942                 mix.type = MIX_ON_OFF;
1943                 uaudio_mixer_add_ctl(sc, &mix);
1944         }
1945         switch (ptype) {
1946         case UPDOWNMIX_PROCESS:
1947                 uaudio_mixer_add_processing_updown(sc, iot, id);
1948                 break;
1949
1950         case DOLBY_PROLOGIC_PROCESS:
1951         case P3D_STEREO_EXTENDER_PROCESS:
1952         case REVERBATION_PROCESS:
1953         case CHORUS_PROCESS:
1954         case DYN_RANGE_COMP_PROCESS:
1955         default:
1956                 DPRINTF("unit %d, type=%d is not implemented\n",
1957                     d0->bUnitId, ptype);
1958                 break;
1959         }
1960 }
1961
1962 static void
1963 uaudio_mixer_add_extension(struct uaudio_softc *sc,
1964     const struct uaudio_terminal_node *iot, int id)
1965 {
1966         const struct usb2_audio_extension_unit_0 *d0 = iot[id].u.eu;
1967         const struct usb2_audio_extension_unit_1 *d1 =
1968         (const void *)(d0->baSourceId + d0->bNrInPins);
1969         struct uaudio_mixer_node mix;
1970
1971         DPRINTFN(3, "bUnitId=%d bNrInPins=%d\n",
1972             d0->bUnitId, d0->bNrInPins);
1973
1974         if (sc->sc_uq_au_no_xu) {
1975                 return;
1976         }
1977         if (d1->bControlSize == 0) {
1978                 return;
1979         }
1980         if (d1->bmControls[0] & UA_EXT_ENABLE_MASK) {
1981
1982                 bzero(&mix, sizeof(mix));
1983
1984                 mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
1985                 mix.nchan = 1;
1986                 mix.wValue[0] = MAKE_WORD(UA_EXT_ENABLE, 0);
1987                 uaudio_mixer_determine_class(&iot[id], &mix);
1988                 mix.type = MIX_ON_OFF;
1989
1990                 uaudio_mixer_add_ctl(sc, &mix);
1991         }
1992 }
1993
1994 static const void *
1995 uaudio_mixer_verify_desc(const void *arg, uint32_t len)
1996 {
1997         const struct usb2_audio_mixer_unit_1 *d1;
1998         const struct usb2_audio_extension_unit_1 *e1;
1999         const struct usb2_audio_processing_unit_1 *u1;
2000
2001         union {
2002                 const struct usb_descriptor *desc;
2003                 const struct usb2_audio_input_terminal *it;
2004                 const struct usb2_audio_output_terminal *ot;
2005                 const struct usb2_audio_mixer_unit_0 *mu;
2006                 const struct usb2_audio_selector_unit *su;
2007                 const struct usb2_audio_feature_unit *fu;
2008                 const struct usb2_audio_processing_unit_0 *pu;
2009                 const struct usb2_audio_extension_unit_0 *eu;
2010         }     u;
2011
2012         u.desc = arg;
2013
2014         if (u.desc == NULL) {
2015                 goto error;
2016         }
2017         if (u.desc->bDescriptorType != UDESC_CS_INTERFACE) {
2018                 goto error;
2019         }
2020         switch (u.desc->bDescriptorSubtype) {
2021         case UDESCSUB_AC_INPUT:
2022                 len += sizeof(*u.it);
2023                 break;
2024
2025         case UDESCSUB_AC_OUTPUT:
2026                 len += sizeof(*u.ot);
2027                 break;
2028
2029         case UDESCSUB_AC_MIXER:
2030                 len += sizeof(*u.mu);
2031
2032                 if (u.desc->bLength < len) {
2033                         goto error;
2034                 }
2035                 len += u.mu->bNrInPins;
2036
2037                 if (u.desc->bLength < len) {
2038                         goto error;
2039                 }
2040                 d1 = (const void *)(u.mu->baSourceId + u.mu->bNrInPins);
2041
2042                 len += sizeof(*d1);
2043                 break;
2044
2045         case UDESCSUB_AC_SELECTOR:
2046                 len += sizeof(*u.su);
2047
2048                 if (u.desc->bLength < len) {
2049                         goto error;
2050                 }
2051                 len += u.su->bNrInPins;
2052                 break;
2053
2054         case UDESCSUB_AC_FEATURE:
2055                 len += (sizeof(*u.fu) + 1);
2056                 break;
2057
2058         case UDESCSUB_AC_PROCESSING:
2059                 len += sizeof(*u.pu);
2060
2061                 if (u.desc->bLength < len) {
2062                         goto error;
2063                 }
2064                 len += u.pu->bNrInPins;
2065
2066                 if (u.desc->bLength < len) {
2067                         goto error;
2068                 }
2069                 u1 = (const void *)(u.pu->baSourceId + u.pu->bNrInPins);
2070
2071                 len += sizeof(*u1);
2072
2073                 if (u.desc->bLength < len) {
2074                         goto error;
2075                 }
2076                 len += u1->bControlSize;
2077
2078                 break;
2079
2080         case UDESCSUB_AC_EXTENSION:
2081                 len += sizeof(*u.eu);
2082
2083                 if (u.desc->bLength < len) {
2084                         goto error;
2085                 }
2086                 len += u.eu->bNrInPins;
2087
2088                 if (u.desc->bLength < len) {
2089                         goto error;
2090                 }
2091                 e1 = (const void *)(u.eu->baSourceId + u.eu->bNrInPins);
2092
2093                 len += sizeof(*e1);
2094
2095                 if (u.desc->bLength < len) {
2096                         goto error;
2097                 }
2098                 len += e1->bControlSize;
2099                 break;
2100
2101         default:
2102                 goto error;
2103         }
2104
2105         if (u.desc->bLength < len) {
2106                 goto error;
2107         }
2108         return (u.desc);
2109
2110 error:
2111         if (u.desc) {
2112                 DPRINTF("invalid descriptor, type=%d, "
2113                     "sub_type=%d, len=%d of %d bytes\n",
2114                     u.desc->bDescriptorType,
2115                     u.desc->bDescriptorSubtype,
2116                     u.desc->bLength, len);
2117         }
2118         return (NULL);
2119 }
2120
2121 #if USB_DEBUG
2122 static void
2123 uaudio_mixer_dump_cluster(uint8_t id, const struct uaudio_terminal_node *iot)
2124 {
2125         static const char *channel_names[16] = {
2126                 "LEFT", "RIGHT", "CENTER", "LFE",
2127                 "LEFT_SURROUND", "RIGHT_SURROUND", "LEFT_CENTER", "RIGHT_CENTER",
2128                 "SURROUND", "LEFT_SIDE", "RIGHT_SIDE", "TOP",
2129                 "RESERVED12", "RESERVED13", "RESERVED14", "RESERVED15",
2130         };
2131         uint16_t cc;
2132         uint8_t i;
2133         const struct usb2_audio_cluster cl = uaudio_mixer_get_cluster(id, iot);
2134
2135         cc = UGETW(cl.wChannelConfig);
2136
2137         DPRINTF("cluster: bNrChannels=%u iChannelNames=%u wChannelConfig="
2138             "0x%04x:\n", cl.iChannelNames, cl.bNrChannels, cc);
2139
2140         for (i = 0; cc; i++) {
2141                 if (cc & 1) {
2142                         DPRINTF(" - %s\n", channel_names[i]);
2143                 }
2144                 cc >>= 1;
2145         }
2146 }
2147
2148 #endif
2149
2150 static struct usb2_audio_cluster
2151 uaudio_mixer_get_cluster(uint8_t id, const struct uaudio_terminal_node *iot)
2152 {
2153         struct usb2_audio_cluster r;
2154         const struct usb_descriptor *dp;
2155         uint8_t i;
2156
2157         for (i = 0; i < UAUDIO_RECURSE_LIMIT; i++) {    /* avoid infinite loops */
2158                 dp = iot[id].u.desc;
2159                 if (dp == NULL) {
2160                         goto error;
2161                 }
2162                 switch (dp->bDescriptorSubtype) {
2163                 case UDESCSUB_AC_INPUT:
2164                         r.bNrChannels = iot[id].u.it->bNrChannels;
2165                         r.wChannelConfig[0] = iot[id].u.it->wChannelConfig[0];
2166                         r.wChannelConfig[1] = iot[id].u.it->wChannelConfig[1];
2167                         r.iChannelNames = iot[id].u.it->iChannelNames;
2168                         goto done;
2169
2170                 case UDESCSUB_AC_OUTPUT:
2171                         id = iot[id].u.ot->bSourceId;
2172                         break;
2173
2174                 case UDESCSUB_AC_MIXER:
2175                         r = *(const struct usb2_audio_cluster *)
2176                             &iot[id].u.mu->baSourceId[iot[id].u.mu->
2177                             bNrInPins];
2178                         goto done;
2179
2180                 case UDESCSUB_AC_SELECTOR:
2181                         if (iot[id].u.su->bNrInPins > 0) {
2182                                 /* XXX This is not really right */
2183                                 id = iot[id].u.su->baSourceId[0];
2184                         }
2185                         break;
2186
2187                 case UDESCSUB_AC_FEATURE:
2188                         id = iot[id].u.fu->bSourceId;
2189                         break;
2190
2191                 case UDESCSUB_AC_PROCESSING:
2192                         r = *((const struct usb2_audio_cluster *)
2193                             &iot[id].u.pu->baSourceId[iot[id].u.pu->
2194                             bNrInPins]);
2195                         goto done;
2196
2197                 case UDESCSUB_AC_EXTENSION:
2198                         r = *((const struct usb2_audio_cluster *)
2199                             &iot[id].u.eu->baSourceId[iot[id].u.eu->
2200                             bNrInPins]);
2201                         goto done;
2202
2203                 default:
2204                         goto error;
2205                 }
2206         }
2207 error:
2208         DPRINTF("bad data\n");
2209         bzero(&r, sizeof(r));
2210 done:
2211         return (r);
2212 }
2213
2214 #if USB_DEBUG
2215
2216 struct uaudio_tt_to_string {
2217         uint16_t terminal_type;
2218         const char *desc;
2219 };
2220
2221 static const struct uaudio_tt_to_string uaudio_tt_to_string[] = {
2222
2223         /* USB terminal types */
2224         {UAT_UNDEFINED, "UAT_UNDEFINED"},
2225         {UAT_STREAM, "UAT_STREAM"},
2226         {UAT_VENDOR, "UAT_VENDOR"},
2227
2228         /* input terminal types */
2229         {UATI_UNDEFINED, "UATI_UNDEFINED"},
2230         {UATI_MICROPHONE, "UATI_MICROPHONE"},
2231         {UATI_DESKMICROPHONE, "UATI_DESKMICROPHONE"},
2232         {UATI_PERSONALMICROPHONE, "UATI_PERSONALMICROPHONE"},
2233         {UATI_OMNIMICROPHONE, "UATI_OMNIMICROPHONE"},
2234         {UATI_MICROPHONEARRAY, "UATI_MICROPHONEARRAY"},
2235         {UATI_PROCMICROPHONEARR, "UATI_PROCMICROPHONEARR"},
2236
2237         /* output terminal types */
2238         {UATO_UNDEFINED, "UATO_UNDEFINED"},
2239         {UATO_SPEAKER, "UATO_SPEAKER"},
2240         {UATO_HEADPHONES, "UATO_HEADPHONES"},
2241         {UATO_DISPLAYAUDIO, "UATO_DISPLAYAUDIO"},
2242         {UATO_DESKTOPSPEAKER, "UATO_DESKTOPSPEAKER"},
2243         {UATO_ROOMSPEAKER, "UATO_ROOMSPEAKER"},
2244         {UATO_COMMSPEAKER, "UATO_COMMSPEAKER"},
2245         {UATO_SUBWOOFER, "UATO_SUBWOOFER"},
2246
2247         /* bidir terminal types */
2248         {UATB_UNDEFINED, "UATB_UNDEFINED"},
2249         {UATB_HANDSET, "UATB_HANDSET"},
2250         {UATB_HEADSET, "UATB_HEADSET"},
2251         {UATB_SPEAKERPHONE, "UATB_SPEAKERPHONE"},
2252         {UATB_SPEAKERPHONEESUP, "UATB_SPEAKERPHONEESUP"},
2253         {UATB_SPEAKERPHONEECANC, "UATB_SPEAKERPHONEECANC"},
2254
2255         /* telephony terminal types */
2256         {UATT_UNDEFINED, "UATT_UNDEFINED"},
2257         {UATT_PHONELINE, "UATT_PHONELINE"},
2258         {UATT_TELEPHONE, "UATT_TELEPHONE"},
2259         {UATT_DOWNLINEPHONE, "UATT_DOWNLINEPHONE"},
2260
2261         /* external terminal types */
2262         {UATE_UNDEFINED, "UATE_UNDEFINED"},
2263         {UATE_ANALOGCONN, "UATE_ANALOGCONN"},
2264         {UATE_LINECONN, "UATE_LINECONN"},
2265         {UATE_LEGACYCONN, "UATE_LEGACYCONN"},
2266         {UATE_DIGITALAUIFC, "UATE_DIGITALAUIFC"},
2267         {UATE_SPDIF, "UATE_SPDIF"},
2268         {UATE_1394DA, "UATE_1394DA"},
2269         {UATE_1394DV, "UATE_1394DV"},
2270
2271         /* embedded function terminal types */
2272         {UATF_UNDEFINED, "UATF_UNDEFINED"},
2273         {UATF_CALIBNOISE, "UATF_CALIBNOISE"},
2274         {UATF_EQUNOISE, "UATF_EQUNOISE"},
2275         {UATF_CDPLAYER, "UATF_CDPLAYER"},
2276         {UATF_DAT, "UATF_DAT"},
2277         {UATF_DCC, "UATF_DCC"},
2278         {UATF_MINIDISK, "UATF_MINIDISK"},
2279         {UATF_ANALOGTAPE, "UATF_ANALOGTAPE"},
2280         {UATF_PHONOGRAPH, "UATF_PHONOGRAPH"},
2281         {UATF_VCRAUDIO, "UATF_VCRAUDIO"},
2282         {UATF_VIDEODISCAUDIO, "UATF_VIDEODISCAUDIO"},
2283         {UATF_DVDAUDIO, "UATF_DVDAUDIO"},
2284         {UATF_TVTUNERAUDIO, "UATF_TVTUNERAUDIO"},
2285         {UATF_SATELLITE, "UATF_SATELLITE"},
2286         {UATF_CABLETUNER, "UATF_CABLETUNER"},
2287         {UATF_DSS, "UATF_DSS"},
2288         {UATF_RADIORECV, "UATF_RADIORECV"},
2289         {UATF_RADIOXMIT, "UATF_RADIOXMIT"},
2290         {UATF_MULTITRACK, "UATF_MULTITRACK"},
2291         {UATF_SYNTHESIZER, "UATF_SYNTHESIZER"},
2292
2293         /* unknown */
2294         {0x0000, "UNKNOWN"},
2295 };
2296
2297 static const char *
2298 uaudio_mixer_get_terminal_name(uint16_t terminal_type)
2299 {
2300         const struct uaudio_tt_to_string *uat = uaudio_tt_to_string;
2301
2302         while (uat->terminal_type) {
2303                 if (uat->terminal_type == terminal_type) {
2304                         break;
2305                 }
2306                 uat++;
2307         }
2308         if (uat->terminal_type == 0) {
2309                 DPRINTF("unknown terminal type (0x%04x)", terminal_type);
2310         }
2311         return (uat->desc);
2312 }
2313
2314 #endif
2315
2316 static uint16_t
2317 uaudio_mixer_determine_class(const struct uaudio_terminal_node *iot,
2318     struct uaudio_mixer_node *mix)
2319 {
2320         uint16_t terminal_type = 0x0000;
2321         const struct uaudio_terminal_node *input[2];
2322         const struct uaudio_terminal_node *output[2];
2323
2324         input[0] = uaudio_mixer_get_input(iot, 0);
2325         input[1] = uaudio_mixer_get_input(iot, 1);
2326
2327         output[0] = uaudio_mixer_get_output(iot, 0);
2328         output[1] = uaudio_mixer_get_output(iot, 1);
2329
2330         /*
2331          * check if there is only
2332          * one output terminal:
2333          */
2334         if (output[0] && (!output[1])) {
2335                 terminal_type = UGETW(output[0]->u.ot->wTerminalType);
2336         }
2337         /*
2338          * If the only output terminal is USB,
2339          * the class is UAC_RECORD.
2340          */
2341         if ((terminal_type & 0xff00) == (UAT_UNDEFINED & 0xff00)) {
2342
2343                 mix->class = UAC_RECORD;
2344                 if (input[0] && (!input[1])) {
2345                         terminal_type = UGETW(input[0]->u.it->wTerminalType);
2346                 } else {
2347                         terminal_type = 0;
2348                 }
2349                 goto done;
2350         }
2351         /*
2352          * if the unit is connected to just
2353          * one input terminal, the
2354          * class is UAC_INPUT:
2355          */
2356         if (input[0] && (!input[1])) {
2357                 mix->class = UAC_INPUT;
2358                 terminal_type = UGETW(input[0]->u.it->wTerminalType);
2359                 goto done;
2360         }
2361         /*
2362          * Otherwise, the class is UAC_OUTPUT.
2363          */
2364         mix->class = UAC_OUTPUT;
2365 done:
2366         return (terminal_type);
2367 }
2368
2369 struct uaudio_tt_to_feature {
2370         uint16_t terminal_type;
2371         uint16_t feature;
2372 };
2373
2374 static const struct uaudio_tt_to_feature uaudio_tt_to_feature[] = {
2375
2376         {UAT_STREAM, SOUND_MIXER_PCM},
2377
2378         {UATI_MICROPHONE, SOUND_MIXER_MIC},
2379         {UATI_DESKMICROPHONE, SOUND_MIXER_MIC},
2380         {UATI_PERSONALMICROPHONE, SOUND_MIXER_MIC},
2381         {UATI_OMNIMICROPHONE, SOUND_MIXER_MIC},
2382         {UATI_MICROPHONEARRAY, SOUND_MIXER_MIC},
2383         {UATI_PROCMICROPHONEARR, SOUND_MIXER_MIC},
2384
2385         {UATO_SPEAKER, SOUND_MIXER_SPEAKER},
2386         {UATO_DESKTOPSPEAKER, SOUND_MIXER_SPEAKER},
2387         {UATO_ROOMSPEAKER, SOUND_MIXER_SPEAKER},
2388         {UATO_COMMSPEAKER, SOUND_MIXER_SPEAKER},
2389
2390         {UATE_ANALOGCONN, SOUND_MIXER_LINE},
2391         {UATE_LINECONN, SOUND_MIXER_LINE},
2392         {UATE_LEGACYCONN, SOUND_MIXER_LINE},
2393
2394         {UATE_DIGITALAUIFC, SOUND_MIXER_ALTPCM},
2395         {UATE_SPDIF, SOUND_MIXER_ALTPCM},
2396         {UATE_1394DA, SOUND_MIXER_ALTPCM},
2397         {UATE_1394DV, SOUND_MIXER_ALTPCM},
2398
2399         {UATF_CDPLAYER, SOUND_MIXER_CD},
2400
2401         {UATF_SYNTHESIZER, SOUND_MIXER_SYNTH},
2402
2403         {UATF_VIDEODISCAUDIO, SOUND_MIXER_VIDEO},
2404         {UATF_DVDAUDIO, SOUND_MIXER_VIDEO},
2405         {UATF_TVTUNERAUDIO, SOUND_MIXER_VIDEO},
2406
2407         /* telephony terminal types */
2408         {UATT_UNDEFINED, SOUND_MIXER_PHONEIN},  /* SOUND_MIXER_PHONEOUT */
2409         {UATT_PHONELINE, SOUND_MIXER_PHONEIN},  /* SOUND_MIXER_PHONEOUT */
2410         {UATT_TELEPHONE, SOUND_MIXER_PHONEIN},  /* SOUND_MIXER_PHONEOUT */
2411         {UATT_DOWNLINEPHONE, SOUND_MIXER_PHONEIN},      /* SOUND_MIXER_PHONEOUT */
2412
2413         {UATF_RADIORECV, SOUND_MIXER_RADIO},
2414         {UATF_RADIOXMIT, SOUND_MIXER_RADIO},
2415
2416         {UAT_UNDEFINED, SOUND_MIXER_VOLUME},
2417         {UAT_VENDOR, SOUND_MIXER_VOLUME},
2418         {UATI_UNDEFINED, SOUND_MIXER_VOLUME},
2419
2420         /* output terminal types */
2421         {UATO_UNDEFINED, SOUND_MIXER_VOLUME},
2422         {UATO_DISPLAYAUDIO, SOUND_MIXER_VOLUME},
2423         {UATO_SUBWOOFER, SOUND_MIXER_VOLUME},
2424         {UATO_HEADPHONES, SOUND_MIXER_VOLUME},
2425
2426         /* bidir terminal types */
2427         {UATB_UNDEFINED, SOUND_MIXER_VOLUME},
2428         {UATB_HANDSET, SOUND_MIXER_VOLUME},
2429         {UATB_HEADSET, SOUND_MIXER_VOLUME},
2430         {UATB_SPEAKERPHONE, SOUND_MIXER_VOLUME},
2431         {UATB_SPEAKERPHONEESUP, SOUND_MIXER_VOLUME},
2432         {UATB_SPEAKERPHONEECANC, SOUND_MIXER_VOLUME},
2433
2434         /* external terminal types */
2435         {UATE_UNDEFINED, SOUND_MIXER_VOLUME},
2436
2437         /* embedded function terminal types */
2438         {UATF_UNDEFINED, SOUND_MIXER_VOLUME},
2439         {UATF_CALIBNOISE, SOUND_MIXER_VOLUME},
2440         {UATF_EQUNOISE, SOUND_MIXER_VOLUME},
2441         {UATF_DAT, SOUND_MIXER_VOLUME},
2442         {UATF_DCC, SOUND_MIXER_VOLUME},
2443         {UATF_MINIDISK, SOUND_MIXER_VOLUME},
2444         {UATF_ANALOGTAPE, SOUND_MIXER_VOLUME},
2445         {UATF_PHONOGRAPH, SOUND_MIXER_VOLUME},
2446         {UATF_VCRAUDIO, SOUND_MIXER_VOLUME},
2447         {UATF_SATELLITE, SOUND_MIXER_VOLUME},
2448         {UATF_CABLETUNER, SOUND_MIXER_VOLUME},
2449         {UATF_DSS, SOUND_MIXER_VOLUME},
2450         {UATF_MULTITRACK, SOUND_MIXER_VOLUME},
2451         {0xffff, SOUND_MIXER_VOLUME},
2452
2453         /* default */
2454         {0x0000, SOUND_MIXER_VOLUME},
2455 };
2456
2457 static uint16_t
2458 uaudio_mixer_feature_name(const struct uaudio_terminal_node *iot,
2459     struct uaudio_mixer_node *mix)
2460 {
2461         const struct uaudio_tt_to_feature *uat = uaudio_tt_to_feature;
2462         uint16_t terminal_type = uaudio_mixer_determine_class(iot, mix);
2463
2464         if ((mix->class == UAC_RECORD) && (terminal_type == 0)) {
2465                 return (SOUND_MIXER_IMIX);
2466         }
2467         while (uat->terminal_type) {
2468                 if (uat->terminal_type == terminal_type) {
2469                         break;
2470                 }
2471                 uat++;
2472         }
2473
2474         DPRINTF("terminal_type=%s (0x%04x) -> %d\n",
2475             uaudio_mixer_get_terminal_name(terminal_type),
2476             terminal_type, uat->feature);
2477
2478         return (uat->feature);
2479 }
2480
2481 const static struct uaudio_terminal_node *
2482 uaudio_mixer_get_input(const struct uaudio_terminal_node *iot, uint8_t index)
2483 {
2484         struct uaudio_terminal_node *root = iot->root;
2485         uint8_t n;
2486
2487         n = iot->usr.id_max;
2488         do {
2489                 if (iot->usr.bit_input[n / 8] & (1 << (n % 8))) {
2490                         if (!index--) {
2491                                 return (root + n);
2492                         }
2493                 }
2494         } while (n--);
2495
2496         return (NULL);
2497 }
2498
2499 const static struct uaudio_terminal_node *
2500 uaudio_mixer_get_output(const struct uaudio_terminal_node *iot, uint8_t index)
2501 {
2502         struct uaudio_terminal_node *root = iot->root;
2503         uint8_t n;
2504
2505         n = iot->usr.id_max;
2506         do {
2507                 if (iot->usr.bit_output[n / 8] & (1 << (n % 8))) {
2508                         if (!index--) {
2509                                 return (root + n);
2510                         }
2511                 }
2512         } while (n--);
2513
2514         return (NULL);
2515 }
2516
2517 static void
2518 uaudio_mixer_find_inputs_sub(struct uaudio_terminal_node *root,
2519     const uint8_t *p_id, uint8_t n_id,
2520     struct uaudio_search_result *info)
2521 {
2522         struct uaudio_terminal_node *iot;
2523         uint8_t n;
2524         uint8_t i;
2525
2526         if (info->recurse_level >= UAUDIO_RECURSE_LIMIT) {
2527                 return;
2528         }
2529         info->recurse_level++;
2530
2531         for (n = 0; n < n_id; n++) {
2532
2533                 i = p_id[n];
2534
2535                 if (info->bit_visited[i / 8] & (1 << (i % 8))) {
2536                         /* don't go into a circle */
2537                         DPRINTF("avoided going into a circle at id=%d!\n", i);
2538                         continue;
2539                 } else {
2540                         info->bit_visited[i / 8] |= (1 << (i % 8));
2541                 }
2542
2543                 iot = (root + i);
2544
2545                 if (iot->u.desc == NULL) {
2546                         continue;
2547                 }
2548                 switch (iot->u.desc->bDescriptorSubtype) {
2549                 case UDESCSUB_AC_INPUT:
2550                         info->bit_input[i / 8] |= (1 << (i % 8));
2551                         break;
2552
2553                 case UDESCSUB_AC_FEATURE:
2554                         uaudio_mixer_find_inputs_sub
2555                             (root, &iot->u.fu->bSourceId, 1, info);
2556                         break;
2557
2558                 case UDESCSUB_AC_OUTPUT:
2559                         uaudio_mixer_find_inputs_sub
2560                             (root, &iot->u.ot->bSourceId, 1, info);
2561                         break;
2562
2563                 case UDESCSUB_AC_MIXER:
2564                         uaudio_mixer_find_inputs_sub
2565                             (root, iot->u.mu->baSourceId,
2566                             iot->u.mu->bNrInPins, info);
2567                         break;
2568
2569                 case UDESCSUB_AC_SELECTOR:
2570                         uaudio_mixer_find_inputs_sub
2571                             (root, iot->u.su->baSourceId,
2572                             iot->u.su->bNrInPins, info);
2573                         break;
2574
2575                 case UDESCSUB_AC_PROCESSING:
2576                         uaudio_mixer_find_inputs_sub
2577                             (root, iot->u.pu->baSourceId,
2578                             iot->u.pu->bNrInPins, info);
2579                         break;
2580
2581                 case UDESCSUB_AC_EXTENSION:
2582                         uaudio_mixer_find_inputs_sub
2583                             (root, iot->u.eu->baSourceId,
2584                             iot->u.eu->bNrInPins, info);
2585                         break;
2586
2587                 case UDESCSUB_AC_HEADER:
2588                 default:
2589                         break;
2590                 }
2591         }
2592         info->recurse_level--;
2593 }
2594
2595 static void
2596 uaudio_mixer_find_outputs_sub(struct uaudio_terminal_node *root, uint8_t id,
2597     uint8_t n_id, struct uaudio_search_result *info)
2598 {
2599         struct uaudio_terminal_node *iot = (root + id);
2600         uint8_t j;
2601
2602         j = n_id;
2603         do {
2604                 if ((j != id) && ((root + j)->u.desc) &&
2605                     ((root + j)->u.desc->bDescriptorSubtype == UDESCSUB_AC_OUTPUT)) {
2606
2607                         /*
2608                          * "j" (output) <--- virtual wire <--- "id" (input)
2609                          *
2610                          * if "j" has "id" on the input, then "id" have "j" on
2611                          * the output, because they are connected:
2612                          */
2613                         if ((root + j)->usr.bit_input[id / 8] & (1 << (id % 8))) {
2614                                 iot->usr.bit_output[j / 8] |= (1 << (j % 8));
2615                         }
2616                 }
2617         } while (j--);
2618 }
2619
2620 static void
2621 uaudio_mixer_fill_info(struct uaudio_softc *sc, struct usb_device *udev,
2622     void *desc)
2623 {
2624         const struct usb2_audio_control_descriptor *acdp;
2625         struct usb_config_descriptor *cd = usb2_get_config_descriptor(udev);
2626         const struct usb_descriptor *dp;
2627         const struct usb2_audio_unit *au;
2628         struct uaudio_terminal_node *iot = NULL;
2629         uint16_t wTotalLen;
2630         uint8_t ID_max = 0;             /* inclusive */
2631         uint8_t i;
2632
2633         desc = usb2_desc_foreach(cd, desc);
2634
2635         if (desc == NULL) {
2636                 DPRINTF("no Audio Control header\n");
2637                 goto done;
2638         }
2639         acdp = desc;
2640
2641         if ((acdp->bLength < sizeof(*acdp)) ||
2642             (acdp->bDescriptorType != UDESC_CS_INTERFACE) ||
2643             (acdp->bDescriptorSubtype != UDESCSUB_AC_HEADER)) {
2644                 DPRINTF("invalid Audio Control header\n");
2645                 goto done;
2646         }
2647         /* "wTotalLen" is allowed to be corrupt */
2648         wTotalLen = UGETW(acdp->wTotalLength) - acdp->bLength;
2649
2650         /* get USB audio revision */
2651         sc->sc_audio_rev = UGETW(acdp->bcdADC);
2652
2653         DPRINTFN(3, "found AC header, vers=%03x, len=%d\n",
2654             sc->sc_audio_rev, wTotalLen);
2655
2656         if (sc->sc_audio_rev != UAUDIO_VERSION) {
2657
2658                 if (sc->sc_uq_bad_adc) {
2659
2660                 } else {
2661                         DPRINTF("invalid audio version\n");
2662                         goto done;
2663                 }
2664         }
2665         iot = malloc(sizeof(struct uaudio_terminal_node) * 256, M_TEMP,
2666             M_WAITOK | M_ZERO);
2667
2668         if (iot == NULL) {
2669                 DPRINTF("no memory!\n");
2670                 goto done;
2671         }
2672         while ((desc = usb2_desc_foreach(cd, desc))) {
2673
2674                 dp = desc;
2675
2676                 if (dp->bLength > wTotalLen) {
2677                         break;
2678                 } else {
2679                         wTotalLen -= dp->bLength;
2680                 }
2681
2682                 au = uaudio_mixer_verify_desc(dp, 0);
2683
2684                 if (au) {
2685                         iot[au->bUnitId].u.desc = (const void *)au;
2686                         if (au->bUnitId > ID_max) {
2687                                 ID_max = au->bUnitId;
2688                         }
2689                 }
2690         }
2691
2692         DPRINTF("Maximum ID=%d\n", ID_max);
2693
2694         /*
2695          * determine sourcing inputs for
2696          * all nodes in the tree:
2697          */
2698         i = ID_max;
2699         do {
2700                 uaudio_mixer_find_inputs_sub(iot, &i, 1, &((iot + i)->usr));
2701         } while (i--);
2702
2703         /*
2704          * determine outputs for
2705          * all nodes in the tree:
2706          */
2707         i = ID_max;
2708         do {
2709                 uaudio_mixer_find_outputs_sub(iot, i, ID_max, &((iot + i)->usr));
2710         } while (i--);
2711
2712         /* set "id_max" and "root" */
2713
2714         i = ID_max;
2715         do {
2716                 (iot + i)->usr.id_max = ID_max;
2717                 (iot + i)->root = iot;
2718         } while (i--);
2719
2720 #if USB_DEBUG
2721         i = ID_max;
2722         do {
2723                 uint8_t j;
2724
2725                 if (iot[i].u.desc == NULL) {
2726                         continue;
2727                 }
2728                 DPRINTF("id %d:\n", i);
2729
2730                 switch (iot[i].u.desc->bDescriptorSubtype) {
2731                 case UDESCSUB_AC_INPUT:
2732                         DPRINTF(" - AC_INPUT type=%s\n",
2733                             uaudio_mixer_get_terminal_name
2734                             (UGETW(iot[i].u.it->wTerminalType)));
2735                         uaudio_mixer_dump_cluster(i, iot);
2736                         break;
2737
2738                 case UDESCSUB_AC_OUTPUT:
2739                         DPRINTF(" - AC_OUTPUT type=%s "
2740                             "src=%d\n", uaudio_mixer_get_terminal_name
2741                             (UGETW(iot[i].u.ot->wTerminalType)),
2742                             iot[i].u.ot->bSourceId);
2743                         break;
2744
2745                 case UDESCSUB_AC_MIXER:
2746                         DPRINTF(" - AC_MIXER src:\n");
2747                         for (j = 0; j < iot[i].u.mu->bNrInPins; j++) {
2748                                 DPRINTF("   - %d\n", iot[i].u.mu->baSourceId[j]);
2749                         }
2750                         uaudio_mixer_dump_cluster(i, iot);
2751                         break;
2752
2753                 case UDESCSUB_AC_SELECTOR:
2754                         DPRINTF(" - AC_SELECTOR src:\n");
2755                         for (j = 0; j < iot[i].u.su->bNrInPins; j++) {
2756                                 DPRINTF("   - %d\n", iot[i].u.su->baSourceId[j]);
2757                         }
2758                         break;
2759
2760                 case UDESCSUB_AC_FEATURE:
2761                         DPRINTF(" - AC_FEATURE src=%d\n", iot[i].u.fu->bSourceId);
2762                         break;
2763
2764                 case UDESCSUB_AC_PROCESSING:
2765                         DPRINTF(" - AC_PROCESSING src:\n");
2766                         for (j = 0; j < iot[i].u.pu->bNrInPins; j++) {
2767                                 DPRINTF("   - %d\n", iot[i].u.pu->baSourceId[j]);
2768                         }
2769                         uaudio_mixer_dump_cluster(i, iot);
2770                         break;
2771
2772                 case UDESCSUB_AC_EXTENSION:
2773                         DPRINTF(" - AC_EXTENSION src:\n");
2774                         for (j = 0; j < iot[i].u.eu->bNrInPins; j++) {
2775                                 DPRINTF("%d ", iot[i].u.eu->baSourceId[j]);
2776                         }
2777                         uaudio_mixer_dump_cluster(i, iot);
2778                         break;
2779
2780                 default:
2781                         DPRINTF("unknown audio control (subtype=%d)\n",
2782                             iot[i].u.desc->bDescriptorSubtype);
2783                 }
2784
2785                 DPRINTF("Inputs to this ID are:\n");
2786
2787                 j = ID_max;
2788                 do {
2789                         if (iot[i].usr.bit_input[j / 8] & (1 << (j % 8))) {
2790                                 DPRINTF("  -- ID=%d\n", j);
2791                         }
2792                 } while (j--);
2793
2794                 DPRINTF("Outputs from this ID are:\n");
2795
2796                 j = ID_max;
2797                 do {
2798                         if (iot[i].usr.bit_output[j / 8] & (1 << (j % 8))) {
2799                                 DPRINTF("  -- ID=%d\n", j);
2800                         }
2801                 } while (j--);
2802
2803         } while (i--);
2804 #endif
2805
2806         /*
2807          * scan the config to create a linked
2808          * list of "mixer" nodes:
2809          */
2810
2811         i = ID_max;
2812         do {
2813                 dp = iot[i].u.desc;
2814
2815                 if (dp == NULL) {
2816                         continue;
2817                 }
2818                 DPRINTFN(11, "id=%d subtype=%d\n",
2819                     i, dp->bDescriptorSubtype);
2820
2821                 switch (dp->bDescriptorSubtype) {
2822                 case UDESCSUB_AC_HEADER:
2823                         DPRINTF("unexpected AC header\n");
2824                         break;
2825
2826                 case UDESCSUB_AC_INPUT:
2827                         uaudio_mixer_add_input(sc, iot, i);
2828                         break;
2829
2830                 case UDESCSUB_AC_OUTPUT:
2831                         uaudio_mixer_add_output(sc, iot, i);
2832                         break;
2833
2834                 case UDESCSUB_AC_MIXER:
2835                         uaudio_mixer_add_mixer(sc, iot, i);
2836                         break;
2837
2838                 case UDESCSUB_AC_SELECTOR:
2839                         uaudio_mixer_add_selector(sc, iot, i);
2840                         break;
2841
2842                 case UDESCSUB_AC_FEATURE:
2843                         uaudio_mixer_add_feature(sc, iot, i);
2844                         break;
2845
2846                 case UDESCSUB_AC_PROCESSING:
2847                         uaudio_mixer_add_processing(sc, iot, i);
2848                         break;
2849
2850                 case UDESCSUB_AC_EXTENSION:
2851                         uaudio_mixer_add_extension(sc, iot, i);
2852                         break;
2853
2854                 default:
2855                         DPRINTF("bad AC desc subtype=0x%02x\n",
2856                             dp->bDescriptorSubtype);
2857                         break;
2858                 }
2859
2860         } while (i--);
2861
2862 done:
2863         if (iot) {
2864                 free(iot, M_TEMP);
2865         }
2866 }
2867
2868 static uint16_t
2869 uaudio_mixer_get(struct usb_device *udev, uint8_t what,
2870     struct uaudio_mixer_node *mc)
2871 {
2872         struct usb_device_request req;
2873         uint16_t val;
2874         uint16_t len = MIX_SIZE(mc->type);
2875         uint8_t data[4];
2876         usb_error_t err;
2877
2878         if (mc->wValue[0] == -1) {
2879                 return (0);
2880         }
2881         req.bmRequestType = UT_READ_CLASS_INTERFACE;
2882         req.bRequest = what;
2883         USETW(req.wValue, mc->wValue[0]);
2884         USETW(req.wIndex, mc->wIndex);
2885         USETW(req.wLength, len);
2886
2887         err = usb2_do_request(udev, &Giant, &req, data);
2888         if (err) {
2889                 DPRINTF("err=%s\n", usb2_errstr(err));
2890                 return (0);
2891         }
2892         if (len < 1) {
2893                 data[0] = 0;
2894         }
2895         if (len < 2) {
2896                 data[1] = 0;
2897         }
2898         val = (data[0] | (data[1] << 8));
2899
2900         DPRINTFN(3, "val=%d\n", val);
2901
2902         return (val);
2903 }
2904
2905 static void
2906 uaudio_mixer_write_cfg_callback(struct usb_xfer *xfer)
2907 {
2908         struct usb_device_request req;
2909         struct uaudio_softc *sc = xfer->priv_sc;
2910         struct uaudio_mixer_node *mc = sc->sc_mixer_curr;
2911         uint16_t len;
2912         uint8_t repeat = 1;
2913         uint8_t update;
2914         uint8_t chan;
2915         uint8_t buf[2];
2916
2917         DPRINTF("\n");
2918
2919         switch (USB_GET_STATE(xfer)) {
2920         case USB_ST_TRANSFERRED:
2921 tr_transferred:
2922         case USB_ST_SETUP:
2923 tr_setup:
2924
2925                 if (mc == NULL) {
2926                         mc = sc->sc_mixer_root;
2927                         sc->sc_mixer_curr = mc;
2928                         sc->sc_mixer_chan = 0;
2929                         repeat = 0;
2930                 }
2931                 while (mc) {
2932                         while (sc->sc_mixer_chan < mc->nchan) {
2933
2934                                 len = MIX_SIZE(mc->type);
2935
2936                                 chan = sc->sc_mixer_chan;
2937
2938                                 sc->sc_mixer_chan++;
2939
2940                                 update = ((mc->update[chan / 8] & (1 << (chan % 8))) &&
2941                                     (mc->wValue[chan] != -1));
2942
2943                                 mc->update[chan / 8] &= ~(1 << (chan % 8));
2944
2945                                 if (update) {
2946
2947                                         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
2948                                         req.bRequest = SET_CUR;
2949                                         USETW(req.wValue, mc->wValue[chan]);
2950                                         USETW(req.wIndex, mc->wIndex);
2951                                         USETW(req.wLength, len);
2952
2953                                         if (len > 0) {
2954                                                 buf[0] = (mc->wData[chan] & 0xFF);
2955                                         }
2956                                         if (len > 1) {
2957                                                 buf[1] = (mc->wData[chan] >> 8) & 0xFF;
2958                                         }
2959                                         usb2_copy_in(xfer->frbuffers, 0, &req, sizeof(req));
2960                                         usb2_copy_in(xfer->frbuffers + 1, 0, buf, len);
2961
2962                                         xfer->frlengths[0] = sizeof(req);
2963                                         xfer->frlengths[1] = len;
2964                                         xfer->nframes = xfer->frlengths[1] ? 2 : 1;
2965                                         usb2_start_hardware(xfer);
2966                                         return;
2967                                 }
2968                         }
2969
2970                         mc = mc->next;
2971                         sc->sc_mixer_curr = mc;
2972                         sc->sc_mixer_chan = 0;
2973                 }
2974
2975                 if (repeat) {
2976                         goto tr_setup;
2977                 }
2978                 break;
2979
2980         default:                        /* Error */
2981                 DPRINTF("error=%s\n", usb2_errstr(xfer->error));
2982                 if (xfer->error == USB_ERR_CANCELLED) {
2983                         /* do nothing - we are detaching */
2984                         break;
2985                 }
2986                 goto tr_transferred;
2987         }
2988 }
2989
2990 static usb_error_t
2991 uaudio_set_speed(struct usb_device *udev, uint8_t endpt, uint32_t speed)
2992 {
2993         struct usb_device_request req;
2994         uint8_t data[3];
2995
2996         DPRINTFN(6, "endpt=%d speed=%u\n", endpt, speed);
2997
2998         req.bmRequestType = UT_WRITE_CLASS_ENDPOINT;
2999         req.bRequest = SET_CUR;
3000         USETW2(req.wValue, SAMPLING_FREQ_CONTROL, 0);
3001         USETW(req.wIndex, endpt);
3002         USETW(req.wLength, 3);
3003         data[0] = speed;
3004         data[1] = speed >> 8;
3005         data[2] = speed >> 16;
3006
3007         return (usb2_do_request(udev, &Giant, &req, data));
3008 }
3009
3010 static int
3011 uaudio_mixer_signext(uint8_t type, int val)
3012 {
3013         if (!MIX_UNSIGNED(type)) {
3014                 if (MIX_SIZE(type) == 2) {
3015                         val = (int16_t)val;
3016                 } else {
3017                         val = (int8_t)val;
3018                 }
3019         }
3020         return (val);
3021 }
3022
3023 static int
3024 uaudio_mixer_bsd2value(struct uaudio_mixer_node *mc, int32_t val)
3025 {
3026         if (mc->type == MIX_ON_OFF) {
3027                 val = (val != 0);
3028         } else if (mc->type == MIX_SELECTOR) {
3029                 if ((val < mc->minval) ||
3030                     (val > mc->maxval)) {
3031                         val = mc->minval;
3032                 }
3033         } else {
3034                 val = (((val + (mc->delta / 2)) * mc->mul) / 255) + mc->minval;
3035         }
3036
3037         DPRINTFN(6, "type=0x%03x val=%d min=%d max=%d val=%d\n",
3038             mc->type, val, mc->minval, mc->maxval, val);
3039         return (val);
3040 }
3041
3042 static void
3043 uaudio_mixer_ctl_set(struct uaudio_softc *sc, struct uaudio_mixer_node *mc,
3044     uint8_t chan, int32_t val)
3045 {
3046         val = uaudio_mixer_bsd2value(mc, val);
3047
3048         mc->update[chan / 8] |= (1 << (chan % 8));
3049         mc->wData[chan] = val;
3050
3051         /* start the transfer, if not already started */
3052
3053         usb2_transfer_start(sc->sc_mixer_xfer[0]);
3054 }
3055
3056 static void
3057 uaudio_mixer_init(struct uaudio_softc *sc)
3058 {
3059         struct uaudio_mixer_node *mc;
3060         int32_t i;
3061
3062         for (mc = sc->sc_mixer_root; mc;
3063             mc = mc->next) {
3064
3065                 if (mc->ctl != SOUND_MIXER_NRDEVICES) {
3066                         /*
3067                          * Set device mask bits. See
3068                          * /usr/include/machine/soundcard.h
3069                          */
3070                         sc->sc_mix_info |= (1 << mc->ctl);
3071                 }
3072                 if ((mc->ctl == SOUND_MIXER_NRDEVICES) &&
3073                     (mc->type == MIX_SELECTOR)) {
3074
3075                         for (i = mc->minval; (i > 0) && (i <= mc->maxval); i++) {
3076                                 if (mc->slctrtype[i - 1] == SOUND_MIXER_NRDEVICES) {
3077                                         continue;
3078                                 }
3079                                 sc->sc_recsrc_info |= 1 << mc->slctrtype[i - 1];
3080                         }
3081                 }
3082         }
3083 }
3084
3085 int
3086 uaudio_mixer_init_sub(struct uaudio_softc *sc, struct snd_mixer *m)
3087 {
3088         DPRINTF("\n");
3089
3090         if (usb2_transfer_setup(sc->sc_udev, &sc->sc_mixer_iface_index,
3091             sc->sc_mixer_xfer, uaudio_mixer_config, 1, sc,
3092             mixer_get_lock(m))) {
3093                 DPRINTFN(0, "could not allocate USB "
3094                     "transfer for audio mixer!\n");
3095                 return (ENOMEM);
3096         }
3097         if (!(sc->sc_mix_info & SOUND_MASK_VOLUME)) {
3098                 mix_setparentchild(m, SOUND_MIXER_VOLUME, SOUND_MASK_PCM);
3099                 mix_setrealdev(m, SOUND_MIXER_VOLUME, SOUND_MIXER_NONE);
3100         }
3101         mix_setdevs(m, sc->sc_mix_info);
3102         mix_setrecdevs(m, sc->sc_recsrc_info);
3103         return (0);
3104 }
3105
3106 int
3107 uaudio_mixer_uninit_sub(struct uaudio_softc *sc)
3108 {
3109         DPRINTF("\n");
3110
3111         usb2_transfer_unsetup(sc->sc_mixer_xfer, 1);
3112
3113         return (0);
3114 }
3115
3116 void
3117 uaudio_mixer_set(struct uaudio_softc *sc, unsigned type,
3118     unsigned left, unsigned right)
3119 {
3120         struct uaudio_mixer_node *mc;
3121
3122         for (mc = sc->sc_mixer_root; mc;
3123             mc = mc->next) {
3124
3125                 if (mc->ctl == type) {
3126                         if (mc->nchan == 2) {
3127                                 /* set Right */
3128                                 uaudio_mixer_ctl_set(sc, mc, 1, (int)(right * 255) / 100);
3129                         }
3130                         /* set Left or Mono */
3131                         uaudio_mixer_ctl_set(sc, mc, 0, (int)(left * 255) / 100);
3132                 }
3133         }
3134 }
3135
3136 uint32_t
3137 uaudio_mixer_setrecsrc(struct uaudio_softc *sc, uint32_t src)
3138 {
3139         struct uaudio_mixer_node *mc;
3140         uint32_t mask;
3141         uint32_t temp;
3142         int32_t i;
3143
3144         for (mc = sc->sc_mixer_root; mc;
3145             mc = mc->next) {
3146
3147                 if ((mc->ctl == SOUND_MIXER_NRDEVICES) &&
3148                     (mc->type == MIX_SELECTOR)) {
3149
3150                         /* compute selector mask */
3151
3152                         mask = 0;
3153                         for (i = mc->minval; (i > 0) && (i <= mc->maxval); i++) {
3154                                 mask |= (1 << mc->slctrtype[i - 1]);
3155                         }
3156
3157                         temp = mask & src;
3158                         if (temp == 0) {
3159                                 continue;
3160                         }
3161                         /* find the first set bit */
3162                         temp = (-temp) & temp;
3163
3164                         /* update "src" */
3165                         src &= ~mask;
3166                         src |= temp;
3167
3168                         for (i = mc->minval; (i > 0) && (i <= mc->maxval); i++) {
3169                                 if (temp != (1 << mc->slctrtype[i - 1])) {
3170                                         continue;
3171                                 }
3172                                 uaudio_mixer_ctl_set(sc, mc, 0, i);
3173                                 break;
3174                         }
3175                 }
3176         }
3177         return (src);
3178 }
3179
3180 /*========================================================================*
3181  * MIDI support routines
3182  *========================================================================*/
3183
3184 static void
3185 umidi_read_clear_stall_callback(struct usb_xfer *xfer)
3186 {
3187         struct umidi_chan *chan = xfer->priv_sc;
3188         struct usb_xfer *xfer_other = chan->xfer[1];
3189
3190         if (usb2_clear_stall_callback(xfer, xfer_other)) {
3191                 DPRINTF("stall cleared\n");
3192                 chan->flags &= ~UMIDI_FLAG_READ_STALL;
3193                 usb2_transfer_start(xfer_other);
3194         }
3195 }
3196
3197 static void
3198 umidi_bulk_read_callback(struct usb_xfer *xfer)
3199 {
3200         struct umidi_chan *chan = xfer->priv_sc;
3201         struct umidi_sub_chan *sub;
3202         uint8_t buf[1];
3203         uint8_t cmd_len;
3204         uint8_t cn;
3205         uint16_t pos;
3206
3207         switch (USB_GET_STATE(xfer)) {
3208         case USB_ST_TRANSFERRED:
3209
3210                 DPRINTF("actlen=%d bytes\n", xfer->actlen);
3211
3212                 if (xfer->actlen == 0) {
3213                         /* should not happen */
3214                         goto tr_error;
3215                 }
3216                 pos = 0;
3217
3218                 while (xfer->actlen >= 4) {
3219
3220                         usb2_copy_out(xfer->frbuffers, pos, buf, 1);
3221
3222                         cmd_len = umidi_cmd_to_len[buf[0] & 0xF];       /* command length */
3223                         cn = buf[0] >> 4;       /* cable number */
3224                         sub = &chan->sub[cn];
3225
3226                         if (cmd_len && (cn < chan->max_cable) && sub->read_open) {
3227                                 usb2_fifo_put_data(sub->fifo.fp[USB_FIFO_RX], xfer->frbuffers,
3228                                     pos + 1, cmd_len, 1);
3229                         } else {
3230                                 /* ignore the command */
3231                         }
3232
3233                         xfer->actlen -= 4;
3234                         pos += 4;
3235                 }
3236
3237         case USB_ST_SETUP:
3238                 DPRINTF("start\n");
3239
3240                 if (chan->flags & UMIDI_FLAG_READ_STALL) {
3241                         usb2_transfer_start(chan->xfer[3]);
3242                         return;
3243                 }
3244                 xfer->frlengths[0] = xfer->max_data_length;
3245                 usb2_start_hardware(xfer);
3246                 return;
3247
3248         default:
3249 tr_error:
3250
3251                 DPRINTF("error=%s\n", usb2_errstr(xfer->error));
3252
3253                 if (xfer->error != USB_ERR_CANCELLED) {
3254                         /* try to clear stall first */
3255                         chan->flags |= UMIDI_FLAG_READ_STALL;
3256                         usb2_transfer_start(chan->xfer[3]);
3257                 }
3258                 return;
3259
3260         }
3261 }
3262
3263 static void
3264 umidi_write_clear_stall_callback(struct usb_xfer *xfer)
3265 {
3266         struct umidi_chan *chan = xfer->priv_sc;
3267         struct usb_xfer *xfer_other = chan->xfer[0];
3268
3269         if (usb2_clear_stall_callback(xfer, xfer_other)) {
3270                 DPRINTF("stall cleared\n");
3271                 chan->flags &= ~UMIDI_FLAG_WRITE_STALL;
3272                 usb2_transfer_start(xfer_other);
3273         }
3274 }
3275
3276 /*
3277  * The following statemachine, that converts MIDI commands to
3278  * USB MIDI packets, derives from Linux's usbmidi.c, which
3279  * was written by "Clemens Ladisch":
3280  *
3281  * Returns:
3282  *    0: No command
3283  * Else: Command is complete
3284  */
3285 static uint8_t
3286 umidi_convert_to_usb(struct umidi_sub_chan *sub, uint8_t cn, uint8_t b)
3287 {
3288         uint8_t p0 = (cn << 4);
3289
3290         if (b >= 0xf8) {
3291                 sub->temp_0[0] = p0 | 0x0f;
3292                 sub->temp_0[1] = b;
3293                 sub->temp_0[2] = 0;
3294                 sub->temp_0[3] = 0;
3295                 sub->temp_cmd = sub->temp_0;
3296                 return (1);
3297
3298         } else if (b >= 0xf0) {
3299                 switch (b) {
3300                 case 0xf0:              /* system exclusive begin */
3301                         sub->temp_1[1] = b;
3302                         sub->state = UMIDI_ST_SYSEX_1;
3303                         break;
3304                 case 0xf1:              /* MIDI time code */
3305                 case 0xf3:              /* song select */
3306                         sub->temp_1[1] = b;
3307                         sub->state = UMIDI_ST_1PARAM;
3308                         break;
3309                 case 0xf2:              /* song position pointer */
3310                         sub->temp_1[1] = b;
3311                         sub->state = UMIDI_ST_2PARAM_1;
3312                         break;
3313                 case 0xf4:              /* unknown */
3314                 case 0xf5:              /* unknown */
3315                         sub->state = UMIDI_ST_UNKNOWN;
3316                         break;
3317                 case 0xf6:              /* tune request */
3318                         sub->temp_1[0] = p0 | 0x05;
3319                         sub->temp_1[1] = 0xf6;
3320                         sub->temp_1[2] = 0;
3321                         sub->temp_1[3] = 0;
3322                         sub->temp_cmd = sub->temp_1;
3323                         sub->state = UMIDI_ST_UNKNOWN;
3324                         return (1);
3325
3326                 case 0xf7:              /* system exclusive end */
3327                         switch (sub->state) {
3328                         case UMIDI_ST_SYSEX_0:
3329                                 sub->temp_1[0] = p0 | 0x05;
3330                                 sub->temp_1[1] = 0xf7;
3331                                 sub->temp_1[2] = 0;
3332                                 sub->temp_1[3] = 0;
3333                                 sub->temp_cmd = sub->temp_1;
3334                                 sub->state = UMIDI_ST_UNKNOWN;
3335                                 return (1);
3336                         case UMIDI_ST_SYSEX_1:
3337                                 sub->temp_1[0] = p0 | 0x06;
3338                                 sub->temp_1[2] = 0xf7;
3339                                 sub->temp_1[3] = 0;
3340                                 sub->temp_cmd = sub->temp_1;
3341                                 sub->state = UMIDI_ST_UNKNOWN;
3342                                 return (1);
3343                         case UMIDI_ST_SYSEX_2:
3344                                 sub->temp_1[0] = p0 | 0x07;
3345                                 sub->temp_1[3] = 0xf7;
3346                                 sub->temp_cmd = sub->temp_1;
3347                                 sub->state = UMIDI_ST_UNKNOWN;
3348                                 return (1);
3349                         }
3350                         sub->state = UMIDI_ST_UNKNOWN;
3351                         break;
3352                 }
3353         } else if (b >= 0x80) {
3354                 sub->temp_1[1] = b;
3355                 if ((b >= 0xc0) && (b <= 0xdf)) {
3356                         sub->state = UMIDI_ST_1PARAM;
3357                 } else {
3358                         sub->state = UMIDI_ST_2PARAM_1;
3359                 }
3360         } else {                        /* b < 0x80 */
3361                 switch (sub->state) {
3362                 case UMIDI_ST_1PARAM:
3363                         if (sub->temp_1[1] < 0xf0) {
3364                                 p0 |= sub->temp_1[1] >> 4;
3365                         } else {
3366                                 p0 |= 0x02;
3367                                 sub->state = UMIDI_ST_UNKNOWN;
3368                         }
3369                         sub->temp_1[0] = p0;
3370                         sub->temp_1[2] = b;
3371                         sub->temp_1[3] = 0;
3372                         sub->temp_cmd = sub->temp_1;
3373                         return (1);
3374                 case UMIDI_ST_2PARAM_1:
3375                         sub->temp_1[2] = b;
3376                         sub->state = UMIDI_ST_2PARAM_2;
3377                         break;
3378                 case UMIDI_ST_2PARAM_2:
3379                         if (sub->temp_1[1] < 0xf0) {
3380                                 p0 |= sub->temp_1[1] >> 4;
3381                                 sub->state = UMIDI_ST_2PARAM_1;
3382                         } else {
3383                                 p0 |= 0x03;
3384                                 sub->state = UMIDI_ST_UNKNOWN;
3385                         }
3386                         sub->temp_1[0] = p0;
3387                         sub->temp_1[3] = b;
3388                         sub->temp_cmd = sub->temp_1;
3389                         return (1);
3390                 case UMIDI_ST_SYSEX_0:
3391                         sub->temp_1[1] = b;
3392                         sub->state = UMIDI_ST_SYSEX_1;
3393                         break;
3394                 case UMIDI_ST_SYSEX_1:
3395                         sub->temp_1[2] = b;
3396                         sub->state = UMIDI_ST_SYSEX_2;
3397                         break;
3398                 case UMIDI_ST_SYSEX_2:
3399                         sub->temp_1[0] = p0 | 0x04;
3400                         sub->temp_1[3] = b;
3401                         sub->temp_cmd = sub->temp_1;
3402                         sub->state = UMIDI_ST_SYSEX_0;
3403                         return (1);
3404                 }
3405         }
3406         return (0);
3407 }
3408
3409 static void
3410 umidi_bulk_write_callback(struct usb_xfer *xfer)
3411 {
3412         struct umidi_chan *chan = xfer->priv_sc;
3413         struct umidi_sub_chan *sub;
3414         uint32_t actlen;
3415         uint16_t total_length;
3416         uint8_t buf;
3417         uint8_t start_cable;
3418         uint8_t tr_any;
3419
3420         switch (USB_GET_STATE(xfer)) {
3421         case USB_ST_TRANSFERRED:
3422                 DPRINTF("actlen=%d bytes\n", xfer->actlen);
3423
3424         case USB_ST_SETUP:
3425
3426                 DPRINTF("start\n");
3427
3428                 if (chan->flags & UMIDI_FLAG_WRITE_STALL) {
3429                         usb2_transfer_start(chan->xfer[2]);
3430                         return;
3431                 }
3432                 total_length = 0;       /* reset */
3433
3434                 start_cable = chan->curr_cable;
3435
3436                 tr_any = 0;
3437
3438                 while (1) {
3439
3440                         /* round robin de-queueing */
3441
3442                         sub = &chan->sub[chan->curr_cable];
3443
3444                         if (sub->write_open) {
3445                                 usb2_fifo_get_data(sub->fifo.fp[USB_FIFO_TX],
3446                                     xfer->frbuffers, total_length,
3447                                     1, &actlen, 0);
3448                         } else {
3449                                 actlen = 0;
3450                         }
3451
3452                         if (actlen) {
3453                                 usb2_copy_out(xfer->frbuffers, total_length, &buf, 1);
3454
3455                                 tr_any = 1;
3456
3457                                 DPRINTF("byte=0x%02x\n", buf);
3458
3459                                 if (umidi_convert_to_usb(sub, chan->curr_cable, buf)) {
3460
3461                                         DPRINTF("sub= %02x %02x %02x %02x\n",
3462                                             sub->temp_cmd[0], sub->temp_cmd[1],
3463                                             sub->temp_cmd[2], sub->temp_cmd[3]);
3464
3465                                         usb2_copy_in(xfer->frbuffers, total_length,
3466                                             sub->temp_cmd, 4);
3467
3468                                         total_length += 4;
3469
3470                                         if (total_length >= UMIDI_BULK_SIZE) {
3471                                                 break;
3472                                         }
3473                                 } else {
3474                                         continue;
3475                                 }
3476                         }
3477                         chan->curr_cable++;
3478                         if (chan->curr_cable >= chan->max_cable) {
3479                                 chan->curr_cable = 0;
3480                         }
3481                         if (chan->curr_cable == start_cable) {
3482                                 if (tr_any == 0) {
3483                                         break;
3484                                 }
3485                                 tr_any = 0;
3486                         }
3487                 }
3488
3489                 if (total_length) {
3490                         xfer->frlengths[0] = total_length;
3491                         usb2_start_hardware(xfer);
3492                 }
3493                 return;
3494
3495         default:                        /* Error */
3496
3497                 DPRINTF("error=%s\n", usb2_errstr(xfer->error));
3498
3499                 if (xfer->error != USB_ERR_CANCELLED) {
3500                         /* try to clear stall first */
3501                         chan->flags |= UMIDI_FLAG_WRITE_STALL;
3502                         usb2_transfer_start(chan->xfer[2]);
3503                 }
3504                 return;
3505
3506         }
3507 }
3508
3509 static struct umidi_sub_chan *
3510 umidi_sub_by_fifo(struct usb_fifo *fifo)
3511 {
3512         struct umidi_chan *chan = fifo->priv_sc0;
3513         struct umidi_sub_chan *sub;
3514         uint32_t n;
3515
3516         for (n = 0; n < UMIDI_CABLES_MAX; n++) {
3517                 sub = &chan->sub[n];
3518                 if ((sub->fifo.fp[USB_FIFO_RX] == fifo) ||
3519                     (sub->fifo.fp[USB_FIFO_TX] == fifo)) {
3520                         return (sub);
3521                 }
3522         }
3523
3524         panic("%s:%d cannot find usb_fifo!\n",
3525             __FILE__, __LINE__);
3526
3527         return (NULL);
3528 }
3529
3530 static void
3531 umidi_start_read(struct usb_fifo *fifo)
3532 {
3533         struct umidi_chan *chan = fifo->priv_sc0;
3534
3535         usb2_transfer_start(chan->xfer[1]);
3536 }
3537
3538 static void
3539 umidi_stop_read(struct usb_fifo *fifo)
3540 {
3541         struct umidi_chan *chan = fifo->priv_sc0;
3542         struct umidi_sub_chan *sub = umidi_sub_by_fifo(fifo);
3543
3544         DPRINTF("\n");
3545
3546         sub->read_open = 0;
3547
3548         if (--(chan->read_open_refcount) == 0) {
3549                 /*
3550                  * XXX don't stop the read transfer here, hence that causes
3551                  * problems with some MIDI adapters
3552                  */
3553                 DPRINTF("(stopping read transfer)\n");
3554         }
3555 }
3556
3557 static void
3558 umidi_start_write(struct usb_fifo *fifo)
3559 {
3560         struct umidi_chan *chan = fifo->priv_sc0;
3561
3562         usb2_transfer_start(chan->xfer[0]);
3563 }
3564
3565 static void
3566 umidi_stop_write(struct usb_fifo *fifo)
3567 {
3568         struct umidi_chan *chan = fifo->priv_sc0;
3569         struct umidi_sub_chan *sub = umidi_sub_by_fifo(fifo);
3570
3571         DPRINTF("\n");
3572
3573         sub->write_open = 0;
3574
3575         if (--(chan->write_open_refcount) == 0) {
3576                 DPRINTF("(stopping write transfer)\n");
3577                 usb2_transfer_stop(chan->xfer[2]);
3578                 usb2_transfer_stop(chan->xfer[0]);
3579         }
3580 }
3581
3582 static int
3583 umidi_open(struct usb_fifo *fifo, int fflags)
3584 {
3585         struct umidi_chan *chan = fifo->priv_sc0;
3586         struct umidi_sub_chan *sub = umidi_sub_by_fifo(fifo);
3587
3588         if (fflags & FREAD) {
3589                 if (usb2_fifo_alloc_buffer(fifo, 4, (1024 / 4))) {
3590                         return (ENOMEM);
3591                 }
3592                 mtx_lock(fifo->priv_mtx);
3593                 chan->read_open_refcount++;
3594                 sub->read_open = 1;
3595                 mtx_unlock(fifo->priv_mtx);
3596         }
3597         if (fflags & FWRITE) {
3598                 if (usb2_fifo_alloc_buffer(fifo, 32, (1024 / 32))) {
3599                         return (ENOMEM);
3600                 }
3601                 /* clear stall first */
3602                 mtx_lock(fifo->priv_mtx);
3603                 chan->flags |= UMIDI_FLAG_WRITE_STALL;
3604                 chan->write_open_refcount++;
3605                 sub->write_open = 1;
3606
3607                 /* reset */
3608                 sub->state = UMIDI_ST_UNKNOWN;
3609                 mtx_unlock(fifo->priv_mtx);
3610         }
3611         return (0);                     /* success */
3612 }
3613
3614 static void
3615 umidi_close(struct usb_fifo *fifo, int fflags)
3616 {
3617         if (fflags & FREAD) {
3618                 usb2_fifo_free_buffer(fifo);
3619         }
3620         if (fflags & FWRITE) {
3621                 usb2_fifo_free_buffer(fifo);
3622         }
3623 }
3624
3625
3626 static int
3627 umidi_ioctl(struct usb_fifo *fifo, u_long cmd, void *data,
3628     int fflags)
3629 {
3630         return (ENODEV);
3631 }
3632
3633 static void
3634 umidi_init(device_t dev)
3635 {
3636         struct uaudio_softc *sc = device_get_softc(dev);
3637         struct umidi_chan *chan = &sc->sc_midi_chan;
3638
3639         mtx_init(&chan->mtx, "umidi lock", NULL, MTX_DEF | MTX_RECURSE);
3640 }
3641
3642 static struct usb_fifo_methods umidi_fifo_methods = {
3643         .f_start_read = &umidi_start_read,
3644         .f_start_write = &umidi_start_write,
3645         .f_stop_read = &umidi_stop_read,
3646         .f_stop_write = &umidi_stop_write,
3647         .f_open = &umidi_open,
3648         .f_close = &umidi_close,
3649         .f_ioctl = &umidi_ioctl,
3650         .basename[0] = "umidi",
3651 };
3652
3653 static int32_t
3654 umidi_probe(device_t dev)
3655 {
3656         struct uaudio_softc *sc = device_get_softc(dev);
3657         struct usb_attach_arg *uaa = device_get_ivars(dev);
3658         struct umidi_chan *chan = &sc->sc_midi_chan;
3659         struct umidi_sub_chan *sub;
3660         int unit = device_get_unit(dev);
3661         int error;
3662         uint32_t n;
3663
3664         if (usb2_set_alt_interface_index(sc->sc_udev, chan->iface_index,
3665             chan->iface_alt_index)) {
3666                 DPRINTF("setting of alternate index failed!\n");
3667                 goto detach;
3668         }
3669         usb2_set_parent_iface(sc->sc_udev, chan->iface_index, sc->sc_mixer_iface_index);
3670
3671         error = usb2_transfer_setup(uaa->device, &chan->iface_index,
3672             chan->xfer, umidi_config, UMIDI_N_TRANSFER,
3673             chan, &chan->mtx);
3674         if (error) {
3675                 DPRINTF("error=%s\n", usb2_errstr(error));
3676                 goto detach;
3677         }
3678         if ((chan->max_cable > UMIDI_CABLES_MAX) ||
3679             (chan->max_cable == 0)) {
3680                 chan->max_cable = UMIDI_CABLES_MAX;
3681         }
3682
3683         for (n = 0; n < chan->max_cable; n++) {
3684
3685                 sub = &chan->sub[n];
3686
3687                 error = usb2_fifo_attach(sc->sc_udev, chan, &chan->mtx,
3688                     &umidi_fifo_methods, &sub->fifo, unit, n,
3689                     chan->iface_index,
3690                     UID_ROOT, GID_OPERATOR, 0644);
3691                 if (error) {
3692                         goto detach;
3693                 }
3694         }
3695
3696         mtx_lock(&chan->mtx);
3697
3698         /* clear stall first */
3699         chan->flags |= UMIDI_FLAG_READ_STALL;
3700
3701         /*
3702          * NOTE: at least one device will not work properly unless
3703          * the BULK pipe is open all the time.
3704          */
3705         usb2_transfer_start(chan->xfer[1]);
3706
3707         mtx_unlock(&chan->mtx);
3708
3709         return (0);                     /* success */
3710
3711 detach:
3712         return (ENXIO);                 /* failure */
3713 }
3714
3715 static int32_t
3716 umidi_detach(device_t dev)
3717 {
3718         struct uaudio_softc *sc = device_get_softc(dev);
3719         struct umidi_chan *chan = &sc->sc_midi_chan;
3720         uint32_t n;
3721
3722         for (n = 0; n < UMIDI_CABLES_MAX; n++) {
3723                 usb2_fifo_detach(&chan->sub[n].fifo);
3724         }
3725
3726         mtx_lock(&chan->mtx);
3727
3728         usb2_transfer_stop(chan->xfer[3]);
3729         usb2_transfer_stop(chan->xfer[1]);
3730
3731         mtx_unlock(&chan->mtx);
3732
3733         usb2_transfer_unsetup(chan->xfer, UMIDI_N_TRANSFER);
3734
3735         mtx_destroy(&chan->mtx);
3736
3737         return (0);
3738 }
3739
3740 DRIVER_MODULE(uaudio, uhub, uaudio_driver, uaudio_devclass, NULL, 0);
3741 MODULE_DEPEND(uaudio, usb, 1, 1, 1);
3742 MODULE_DEPEND(uaudio, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
3743 MODULE_VERSION(uaudio, 1);