sound/oss/emu10k1/cardmi.c

   1 /*
   2  **********************************************************************
   3  *     sblive_mi.c - MIDI UART input HAL for emu10k1 driver
   4  *     Copyright 1999, 2000 Creative Labs, Inc.
   5  *
   6  **********************************************************************
   7  *
   8  *     Date                 Author          Summary of changes
   9  *     ----                 ------          ------------------
  10  *     October 20, 1999     Bertrand Lee    base code release
  11  *     November 2, 1999     Alan Cox        clean up
  12  *
  13  **********************************************************************
  14  *
  15  *     This program is free software; you can redistribute it and/or
  16  *     modify it under the terms of the GNU General Public License as
  17  *     published by the Free Software Foundation; either version 2 of
  18  *     the License, or (at your option) any later version.
  19  *
  20  *     This program is distributed in the hope that it will be useful,
  21  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *     GNU General Public License for more details.
  24  *
  25  *     You should have received a copy of the GNU General Public
  26  *     License along with this program; if not, write to the Free
  27  *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
  28  *     USA.
  29  *
  30  **********************************************************************
  31  */
  32
  33 #include <linux/slab.h>
  34 #include <linux/jiffies.h>
  35
  36 #include "hwaccess.h"
  37 #include "8010.h"
  38 #include "cardmi.h"
  39 #include "irqmgr.h"
  40
  41
  42 static int emu10k1_mpuin_callback(struct emu10k1_mpuin *card_mpuin, u32 msg, unsigned long data, u32 bytesvalid);
  43
  44 static int sblive_miStateInit(struct emu10k1_mpuin *);
  45 static int sblive_miStateEntry(struct emu10k1_mpuin *, u8);
  46 static int sblive_miStateParse(struct emu10k1_mpuin *, u8);
  47 static int sblive_miState3Byte(struct emu10k1_mpuin *, u8);
  48 static int sblive_miState3ByteKey(struct emu10k1_mpuin *, u8);
  49 static int sblive_miState3ByteVel(struct emu10k1_mpuin *, u8);
  50 static int sblive_miState2Byte(struct emu10k1_mpuin *, u8);
  51 static int sblive_miState2ByteKey(struct emu10k1_mpuin *, u8);
  52 static int sblive_miStateSysCommon2(struct emu10k1_mpuin *, u8);
  53 static int sblive_miStateSysCommon2Key(struct emu10k1_mpuin *, u8);
  54 static int sblive_miStateSysCommon3(struct emu10k1_mpuin *, u8);
  55 static int sblive_miStateSysCommon3Key(struct emu10k1_mpuin *, u8);
  56 static int sblive_miStateSysCommon3Vel(struct emu10k1_mpuin *, u8);
  57 static int sblive_miStateSysExNorm(struct emu10k1_mpuin *, u8);
  58 static int sblive_miStateSysReal(struct emu10k1_mpuin *, u8);
  59
  60
  61 static struct {
  62         int (*Fn) (struct emu10k1_mpuin *, u8);
  63 } midistatefn[] = {
  64
  65         {
  66         sblive_miStateParse}, {
  67         sblive_miState3Byte},   /* 0x8n, 0x9n, 0xAn, 0xBn, 0xEn */
  68         {
  69         sblive_miState3ByteKey},        /* Byte 1                       */
  70         {
  71         sblive_miState3ByteVel},        /* Byte 2                       */
  72         {
  73         sblive_miState2Byte},   /* 0xCn, 0xDn                   */
  74         {
  75         sblive_miState2ByteKey},        /* Byte 1                       */
  76         {
  77         sblive_miStateSysCommon2},      /* 0xF1 , 0xF3                  */
  78         {
  79         sblive_miStateSysCommon2Key},   /* 0xF1 , 0xF3, Byte 1          */
  80         {
  81         sblive_miStateSysCommon3},      /* 0xF2                         */
  82         {
  83         sblive_miStateSysCommon3Key},   /* 0xF2 , Byte 1                */
  84         {
  85         sblive_miStateSysCommon3Vel},   /* 0xF2 , Byte 2                */
  86         {
  87         sblive_miStateSysExNorm},       /* 0xF0, 0xF7, Normal mode      */
  88         {
  89         sblive_miStateSysReal}  /* 0xF4 - 0xF6 ,0xF8 - 0xFF     */
  90 };
  91
  92
  93 /* Installs the IRQ handler for the MPU in port                 */
  94
  95 /* and initialize parameters                                    */
  96
  97 int emu10k1_mpuin_open(struct emu10k1_card *card, struct midi_openinfo *openinfo)
  98 {
  99         struct emu10k1_mpuin *card_mpuin = card->mpuin;
 100
 101         DPF(2, "emu10k1_mpuin_open\n");
 102
 103         if (!(card_mpuin->status & FLAGS_AVAILABLE))
 104                 return -1;
 105
 106         /* Copy open info and mark channel as in use */
 107         card_mpuin->openinfo = *openinfo;
 108         card_mpuin->status &= ~FLAGS_AVAILABLE; /* clear */
 109         card_mpuin->status |= FLAGS_READY;      /* set */
 110         card_mpuin->status &= ~FLAGS_MIDM_STARTED;      /* clear */
 111         card_mpuin->firstmidiq = NULL;
 112         card_mpuin->lastmidiq = NULL;
 113         card_mpuin->qhead = 0;
 114         card_mpuin->qtail = 0;
 115
 116         sblive_miStateInit(card_mpuin);
 117
 118         emu10k1_mpu_reset(card);
 119         emu10k1_mpu_acquire(card);
 120
 121         return 0;
 122 }
 123
 124 int emu10k1_mpuin_close(struct emu10k1_card *card)
 125 {
 126         struct emu10k1_mpuin *card_mpuin = card->mpuin;
 127
 128         DPF(2, "emu10k1_mpuin_close()\n");
 129
 130         /* Check if there are pending input SysEx buffers */
 131         if (card_mpuin->firstmidiq != NULL) {
 132                 ERROR();
 133                 return -1;
 134         }
 135
 136         /* Disable RX interrupt */
 137         emu10k1_irq_disable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE);
 138
 139         emu10k1_mpu_release(card);
 140
 141         card_mpuin->status |= FLAGS_AVAILABLE;  /* set */
 142         card_mpuin->status &= ~FLAGS_MIDM_STARTED;      /* clear */
 143
 144         return 0;
 145 }
 146
 147 /* Adds MIDI buffer to local queue list                         */
 148
 149 int emu10k1_mpuin_add_buffer(struct emu10k1_mpuin *card_mpuin, struct midi_hdr *midihdr)
 150 {
 151         struct midi_queue *midiq;
 152         unsigned long flags;
 153
 154         DPF(2, "emu10k1_mpuin_add_buffer()\n");
 155
 156         /* Update MIDI buffer flags */
 157         midihdr->flags |= MIDIBUF_INQUEUE;      /* set */
 158         midihdr->flags &= ~MIDIBUF_DONE;        /* clear */
 159
 160         if ((midiq = kmalloc(sizeof(struct midi_queue), GFP_ATOMIC)) == NULL) {
 161                 /* Message lost */
 162                 return -1;
 163         }
 164
 165         midiq->next = NULL;
 166         midiq->qtype = 1;
 167         midiq->length = midihdr->bufferlength;
 168         midiq->sizeLeft = midihdr->bufferlength;
 169         midiq->midibyte = midihdr->data;
 170         midiq->refdata = (unsigned long) midihdr;
 171
 172         spin_lock_irqsave(&card_mpuin->lock, flags);
 173
 174         if (card_mpuin->firstmidiq == NULL) {
 175                 card_mpuin->firstmidiq = midiq;
 176                 card_mpuin->lastmidiq = midiq;
 177         } else {
 178                 (card_mpuin->lastmidiq)->next = midiq;
 179                 card_mpuin->lastmidiq = midiq;
 180         }
 181
 182         spin_unlock_irqrestore(&card_mpuin->lock, flags);
 183
 184         return 0;
 185 }
 186
 187 /* First set the Time Stamp if MIDI IN has not started.         */
 188
 189 /* Then enable RX Irq.                                          */
 190
 191 int emu10k1_mpuin_start(struct emu10k1_card *card)
 192 {
 193         struct emu10k1_mpuin *card_mpuin = card->mpuin;
 194         u8 dummy;
 195
 196         DPF(2, "emu10k1_mpuin_start()\n");
 197
 198         /* Set timestamp if not set */
 199         if (card_mpuin->status & FLAGS_MIDM_STARTED) {
 200                 DPF(2, "Time Stamp not changed\n");
 201         } else {
 202                 while (!emu10k1_mpu_read_data(card, &dummy));
 203
 204                 card_mpuin->status |= FLAGS_MIDM_STARTED;       /* set */
 205
 206                 /* Set new time stamp */
 207                 card_mpuin->timestart = (jiffies * 1000) / HZ;
 208                 DPD(2, "New Time Stamp = %d\n", card_mpuin->timestart);
 209
 210                 card_mpuin->qhead = 0;
 211                 card_mpuin->qtail = 0;
 212
 213                 emu10k1_irq_enable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE);
 214         }
 215
 216         return 0;
 217 }
 218
 219 /* Disable the RX Irq.  If a partial recorded buffer            */
 220
 221 /* exist, send it up to IMIDI level.                            */
 222
 223 int emu10k1_mpuin_stop(struct emu10k1_card *card)
 224 {
 225         struct emu10k1_mpuin *card_mpuin = card->mpuin;
 226         struct midi_queue *midiq;
 227         unsigned long flags;
 228
 229         DPF(2, "emu10k1_mpuin_stop()\n");
 230
 231         emu10k1_irq_disable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE);
 232
 233         card_mpuin->status &= ~FLAGS_MIDM_STARTED;      /* clear */
 234
 235         if (card_mpuin->firstmidiq) {
 236                 spin_lock_irqsave(&card_mpuin->lock, flags);
 237
 238                 midiq = card_mpuin->firstmidiq;
 239                 if (midiq != NULL) {
 240                         if (midiq->sizeLeft == midiq->length)
 241                                 midiq = NULL;
 242                         else {
 243                                 card_mpuin->firstmidiq = midiq->next;
 244                                 if (card_mpuin->firstmidiq == NULL)
 245                                         card_mpuin->lastmidiq = NULL;
 246                         }
 247                 }
 248
 249                 spin_unlock_irqrestore(&card_mpuin->lock, flags);
 250
 251                 if (midiq) {
 252                         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGERROR, (unsigned long) midiq, 0);
 253                         kfree(midiq);
 254                 }
 255         }
 256
 257         return 0;
 258 }
 259
 260 /* Disable the RX Irq.  If any buffer                           */
 261
 262 /* exist, send it up to IMIDI level.                            */
 263 int emu10k1_mpuin_reset(struct emu10k1_card *card)
 264 {
 265         struct emu10k1_mpuin *card_mpuin = card->mpuin;
 266         struct midi_queue *midiq;
 267
 268         DPF(2, "emu10k1_mpuin_reset()\n");
 269
 270         emu10k1_irq_disable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE);
 271
 272         while (card_mpuin->firstmidiq) {
 273                 midiq = card_mpuin->firstmidiq;
 274                 card_mpuin->firstmidiq = midiq->next;
 275
 276                 if (midiq->sizeLeft == midiq->length)
 277                         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGDATA, (unsigned long) midiq, 0);
 278                 else
 279                         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGERROR, (unsigned long) midiq, 0);
 280
 281                 kfree(midiq);
 282         }
 283
 284         card_mpuin->lastmidiq = NULL;
 285         card_mpuin->status &= ~FLAGS_MIDM_STARTED;
 286
 287         return 0;
 288 }
 289
 290 /* Passes the message with the data back to the client          */
 291
 292 /* via IRQ & DPC callbacks to Ring 3                            */
 293 static int emu10k1_mpuin_callback(struct emu10k1_mpuin *card_mpuin, u32 msg, unsigned long data, u32 bytesvalid)
 294 {
 295         unsigned long timein;
 296         struct midi_queue *midiq;
 297         unsigned long callback_msg[3];
 298         struct midi_hdr *midihdr;
 299
 300         /* Called during ISR. The data & code touched are:
 301          * 1. card_mpuin
 302          * 2. The function to be called
 303          */
 304
 305         timein = card_mpuin->timein;
 306         if (card_mpuin->timestart <= timein)
 307                 callback_msg[0] = timein - card_mpuin->timestart;
 308         else
 309                 callback_msg[0] = (~0x0L - card_mpuin->timestart) + timein;
 310
 311         if (msg == ICARDMIDI_INDATA || msg == ICARDMIDI_INDATAERROR) {
 312                 callback_msg[1] = data;
 313                 callback_msg[2] = bytesvalid;
 314                 DPD(2, "emu10k1_mpuin_callback: midimsg = %#lx\n", data);
 315         } else {
 316                 midiq = (struct midi_queue *) data;
 317                 midihdr = (struct midi_hdr *) midiq->refdata;
 318
 319                 callback_msg[1] = midiq->length - midiq->sizeLeft;
 320                 callback_msg[2] = midiq->refdata;
 321                 midihdr->flags &= ~MIDIBUF_INQUEUE;
 322                 midihdr->flags |= MIDIBUF_DONE;
 323
 324                 midihdr->bytesrecorded = midiq->length - midiq->sizeLeft;
 325         }
 326
 327         /* Notify client that Sysex buffer has been sent */
 328         emu10k1_midi_callback(msg, card_mpuin->openinfo.refdata, callback_msg);
 329
 330         return 0;
 331 }
 332
 333 void emu10k1_mpuin_bh(unsigned long refdata)
 334 {
 335         u8 data;
 336         unsigned idx;
 337         struct emu10k1_mpuin *card_mpuin = (struct emu10k1_mpuin *) refdata;
 338         unsigned long flags;
 339
 340         while (card_mpuin->qhead != card_mpuin->qtail) {
 341                 spin_lock_irqsave(&card_mpuin->lock, flags);
 342                 idx = card_mpuin->qhead;
 343                 data = card_mpuin->midiq[idx].data;
 344                 card_mpuin->timein = card_mpuin->midiq[idx].timein;
 345                 idx = (idx + 1) % MIDIIN_MAX_BUFFER_SIZE;
 346                 card_mpuin->qhead = idx;
 347                 spin_unlock_irqrestore(&card_mpuin->lock, flags);
 348
 349                 sblive_miStateEntry(card_mpuin, data);
 350         }
 351
 352         return;
 353 }
 354
 355 /* IRQ callback handler routine for the MPU in port */
 356
 357 int emu10k1_mpuin_irqhandler(struct emu10k1_card *card)
 358 {
 359         unsigned idx;
 360         unsigned count;
 361         u8 MPUIvalue;
 362         struct emu10k1_mpuin *card_mpuin = card->mpuin;
 363
 364         /* IRQ service routine. The data and code touched are:
 365          * 1. card_mpuin
 366          */
 367
 368         count = 0;
 369         idx = card_mpuin->qtail;
 370
 371         while (1) {
 372                 if (emu10k1_mpu_read_data(card, &MPUIvalue) < 0) {
 373                         break;
 374                 } else {
 375                         ++count;
 376                         card_mpuin->midiq[idx].data = MPUIvalue;
 377                         card_mpuin->midiq[idx].timein = (jiffies * 1000) / HZ;
 378                         idx = (idx + 1) % MIDIIN_MAX_BUFFER_SIZE;
 379                 }
 380         }
 381
 382         if (count) {
 383                 card_mpuin->qtail = idx;
 384
 385                 tasklet_hi_schedule(&card_mpuin->tasklet);
 386         }
 387
 388         return 0;
 389 }
 390
 391 /*****************************************************************************/
 392
 393 /*   Supporting functions for Midi-In Interpretation State Machine           */
 394
 395 /*****************************************************************************/
 396
 397 /* FIXME: This should be a macro */
 398 static int sblive_miStateInit(struct emu10k1_mpuin *card_mpuin)
 399 {
 400         card_mpuin->status = 0; /* For MIDI running status */
 401         card_mpuin->fstatus = 0;        /* For 0xFn status only */
 402         card_mpuin->curstate = STIN_PARSE;
 403         card_mpuin->laststate = STIN_PARSE;
 404         card_mpuin->data = 0;
 405         card_mpuin->timestart = 0;
 406         card_mpuin->timein = 0;
 407
 408         return 0;
 409 }
 410
 411 /* FIXME: This should be a macro */
 412 static int sblive_miStateEntry(struct emu10k1_mpuin *card_mpuin, u8 data)
 413 {
 414         return midistatefn[card_mpuin->curstate].Fn(card_mpuin, data);
 415 }
 416
 417 static int sblive_miStateParse(struct emu10k1_mpuin *card_mpuin, u8 data)
 418 {
 419         switch (data & 0xf0) {
 420         case 0x80:
 421         case 0x90:
 422         case 0xA0:
 423         case 0xB0:
 424         case 0xE0:
 425                 card_mpuin->curstate = STIN_3BYTE;
 426                 break;
 427
 428         case 0xC0:
 429         case 0xD0:
 430                 card_mpuin->curstate = STIN_2BYTE;
 431                 break;
 432
 433         case 0xF0:
 434                 /* System messages do not affect the previous running status! */
 435                 switch (data & 0x0f) {
 436                 case 0x0:
 437                         card_mpuin->laststate = card_mpuin->curstate;
 438                         card_mpuin->curstate = STIN_SYS_EX_NORM;
 439
 440                         if (card_mpuin->firstmidiq) {
 441                                 struct midi_queue *midiq;
 442
 443                                 midiq = card_mpuin->firstmidiq;
 444                                 *midiq->midibyte = data;
 445                                 --midiq->sizeLeft;
 446                                 ++midiq->midibyte;
 447                         }
 448
 449                         return CTSTATUS_NEXT_BYTE;
 450
 451                 case 0x7:
 452                         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, 0xf7, 0);
 453                         return -1;
 454
 455                 case 0x2:
 456                         card_mpuin->laststate = card_mpuin->curstate;
 457                         card_mpuin->curstate = STIN_SYS_COMMON_3;
 458                         break;
 459
 460                 case 0x1:
 461                 case 0x3:
 462                         card_mpuin->laststate = card_mpuin->curstate;
 463                         card_mpuin->curstate = STIN_SYS_COMMON_2;
 464                         break;
 465
 466                 default:
 467                         /* includes 0xF4 - 0xF6, 0xF8 - 0xFF */
 468                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 469                 }
 470
 471                 break;
 472
 473         default:
 474                 DPF(2, "BUG: default case hit\n");
 475                 return -1;
 476         }
 477
 478         return midistatefn[card_mpuin->curstate].Fn(card_mpuin, data);
 479 }
 480
 481 static int sblive_miState3Byte(struct emu10k1_mpuin *card_mpuin, u8 data)
 482 {
 483         u8 temp = data & 0xf0;
 484
 485         if (temp < 0x80) {
 486                 return midistatefn[STIN_3BYTE_KEY].Fn(card_mpuin, data);
 487         } else if (temp <= 0xe0 && temp != 0xc0 && temp != 0xd0) {
 488                 card_mpuin->status = data;
 489                 card_mpuin->curstate = STIN_3BYTE_KEY;
 490
 491                 return CTSTATUS_NEXT_BYTE;
 492         }
 493
 494         return midistatefn[STIN_PARSE].Fn(card_mpuin, data);
 495 }
 496
 497 static int sblive_miState3ByteKey(struct emu10k1_mpuin *card_mpuin, u8 data)
 498 /* byte 1 */
 499 {
 500         unsigned long tmp;
 501
 502         if (data > 0x7f) {
 503                 /* Real-time messages check */
 504                 if (data > 0xf7)
 505                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 506
 507                 /* Invalid data! */
 508                 DPF(2, "Invalid data!\n");
 509
 510                 card_mpuin->curstate = STIN_PARSE;
 511                 tmp = ((unsigned long) data) << 8;
 512                 tmp |= (unsigned long) card_mpuin->status;
 513
 514                 emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0);
 515
 516                 return -1;
 517         }
 518
 519         card_mpuin->data = data;
 520         card_mpuin->curstate = STIN_3BYTE_VEL;
 521
 522         return CTSTATUS_NEXT_BYTE;
 523 }
 524
 525 static int sblive_miState3ByteVel(struct emu10k1_mpuin *card_mpuin, u8 data)
 526 /* byte 2 */
 527 {
 528         unsigned long tmp;
 529
 530         if (data > 0x7f) {
 531                 /* Real-time messages check */
 532                 if (data > 0xf7)
 533                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 534
 535                 /* Invalid data! */
 536                 DPF(2, "Invalid data!\n");
 537
 538                 card_mpuin->curstate = STIN_PARSE;
 539                 tmp = ((unsigned long) data) << 8;
 540                 tmp |= card_mpuin->data;
 541                 tmp = tmp << 8;
 542                 tmp |= (unsigned long) card_mpuin->status;
 543
 544                 emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0);
 545
 546                 return -1;
 547         }
 548
 549         card_mpuin->curstate = STIN_3BYTE;
 550         tmp = (unsigned long) data;
 551         tmp = tmp << 8;
 552         tmp |= (unsigned long) card_mpuin->data;
 553         tmp = tmp << 8;
 554         tmp |= (unsigned long) card_mpuin->status;
 555
 556         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 3);
 557
 558         return 0;
 559 }
 560
 561 static int sblive_miState2Byte(struct emu10k1_mpuin *card_mpuin, u8 data)
 562 {
 563         u8 temp = data & 0xf0;
 564
 565         if ((temp == 0xc0) || (temp == 0xd0)) {
 566                 card_mpuin->status = data;
 567                 card_mpuin->curstate = STIN_2BYTE_KEY;
 568
 569                 return CTSTATUS_NEXT_BYTE;
 570         }
 571
 572         if (temp < 0x80)
 573                 return midistatefn[STIN_2BYTE_KEY].Fn(card_mpuin, data);
 574
 575         return midistatefn[STIN_PARSE].Fn(card_mpuin, data);
 576 }
 577
 578 static int sblive_miState2ByteKey(struct emu10k1_mpuin *card_mpuin, u8 data)
 579 /* byte 1 */
 580 {
 581         unsigned long tmp;
 582
 583         if (data > 0x7f) {
 584                 /* Real-time messages check */
 585                 if (data > 0xf7)
 586                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 587
 588                 /* Invalid data! */
 589                 DPF(2, "Invalid data!\n");
 590
 591                 card_mpuin->curstate = STIN_PARSE;
 592                 tmp = (unsigned long) data;
 593                 tmp = tmp << 8;
 594                 tmp |= (unsigned long) card_mpuin->status;
 595
 596                 emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0);
 597
 598                 return -1;
 599         }
 600
 601         card_mpuin->curstate = STIN_2BYTE;
 602         tmp = (unsigned long) data;
 603         tmp = tmp << 8;
 604         tmp |= (unsigned long) card_mpuin->status;
 605
 606         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 2);
 607
 608         return 0;
 609 }
 610
 611 static int sblive_miStateSysCommon2(struct emu10k1_mpuin *card_mpuin, u8 data)
 612 {
 613         card_mpuin->fstatus = data;
 614         card_mpuin->curstate = STIN_SYS_COMMON_2_KEY;
 615
 616         return CTSTATUS_NEXT_BYTE;
 617 }
 618
 619 static int sblive_miStateSysCommon2Key(struct emu10k1_mpuin *card_mpuin, u8 data)
 620 /* byte 1 */
 621 {
 622         unsigned long tmp;
 623
 624         if (data > 0x7f) {
 625                 /* Real-time messages check */
 626                 if (data > 0xf7)
 627                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 628
 629                 /* Invalid data! */
 630                 DPF(2, "Invalid data!\n");
 631
 632                 card_mpuin->curstate = card_mpuin->laststate;
 633                 tmp = (unsigned long) data;
 634                 tmp = tmp << 8;
 635                 tmp |= (unsigned long) card_mpuin->fstatus;
 636
 637                 emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0);
 638
 639                 return -1;
 640         }
 641
 642         card_mpuin->curstate = card_mpuin->laststate;
 643         tmp = (unsigned long) data;
 644         tmp = tmp << 8;
 645         tmp |= (unsigned long) card_mpuin->fstatus;
 646
 647         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 2);
 648
 649         return 0;
 650 }
 651
 652 static int sblive_miStateSysCommon3(struct emu10k1_mpuin *card_mpuin, u8 data)
 653 {
 654         card_mpuin->fstatus = data;
 655         card_mpuin->curstate = STIN_SYS_COMMON_3_KEY;
 656
 657         return CTSTATUS_NEXT_BYTE;
 658 }
 659
 660 static int sblive_miStateSysCommon3Key(struct emu10k1_mpuin *card_mpuin, u8 data)
 661 /* byte 1 */
 662 {
 663         unsigned long tmp;
 664
 665         if (data > 0x7f) {
 666                 /* Real-time messages check */
 667                 if (data > 0xf7)
 668                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 669
 670                 /* Invalid data! */
 671                 DPF(2, "Invalid data!\n");
 672
 673                 card_mpuin->curstate = card_mpuin->laststate;
 674                 tmp = (unsigned long) data;
 675                 tmp = tmp << 8;
 676                 tmp |= (unsigned long) card_mpuin->fstatus;
 677
 678                 emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0);
 679
 680                 return -1;
 681         }
 682
 683         card_mpuin->data = data;
 684         card_mpuin->curstate = STIN_SYS_COMMON_3_VEL;
 685
 686         return CTSTATUS_NEXT_BYTE;
 687 }
 688
 689 static int sblive_miStateSysCommon3Vel(struct emu10k1_mpuin *card_mpuin, u8 data)
 690 /* byte 2 */
 691 {
 692         unsigned long tmp;
 693
 694         if (data > 0x7f) {
 695                 /* Real-time messages check */
 696                 if (data > 0xf7)
 697                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 698
 699                 /* Invalid data! */
 700                 DPF(2, "Invalid data!\n");
 701
 702                 card_mpuin->curstate = card_mpuin->laststate;
 703                 tmp = (unsigned long) data;
 704                 tmp = tmp << 8;
 705                 tmp |= (unsigned long) card_mpuin->data;
 706                 tmp = tmp << 8;
 707                 tmp |= (unsigned long) card_mpuin->fstatus;
 708
 709                 emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0);
 710
 711                 return -1;
 712         }
 713
 714         card_mpuin->curstate = card_mpuin->laststate;
 715         tmp = (unsigned long) data;
 716         tmp = tmp << 8;
 717         tmp |= (unsigned long) card_mpuin->data;
 718         tmp = tmp << 8;
 719         tmp |= (unsigned long) card_mpuin->fstatus;
 720
 721         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 3);
 722
 723         return 0;
 724 }
 725
 726 static int sblive_miStateSysExNorm(struct emu10k1_mpuin *card_mpuin, u8 data)
 727 {
 728         unsigned long flags;
 729
 730         if ((data > 0x7f) && (data != 0xf7)) {
 731                 /* Real-time messages check */
 732                 if (data > 0xf7)
 733                         return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data);
 734
 735                 /* Invalid Data! */
 736                 DPF(2, "Invalid data!\n");
 737
 738                 card_mpuin->curstate = card_mpuin->laststate;
 739
 740                 if (card_mpuin->firstmidiq) {
 741                         struct midi_queue *midiq;
 742
 743                         midiq = card_mpuin->firstmidiq;
 744                         *midiq->midibyte = data;
 745                         --midiq->sizeLeft;
 746                         ++midiq->midibyte;
 747
 748                         spin_lock_irqsave(&card_mpuin->lock, flags);
 749
 750                         card_mpuin->firstmidiq = midiq->next;
 751                         if (card_mpuin->firstmidiq == NULL)
 752                                 card_mpuin->lastmidiq = NULL;
 753
 754                         spin_unlock_irqrestore(&card_mpuin->lock, flags);
 755
 756                         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGERROR, (unsigned long) midiq, 0);
 757
 758                         kfree(midiq);
 759                 }
 760
 761                 return -1;
 762         }
 763
 764         if (card_mpuin->firstmidiq) {
 765                 struct midi_queue *midiq;
 766
 767                 midiq = card_mpuin->firstmidiq;
 768                 *midiq->midibyte = data;
 769                 --midiq->sizeLeft;
 770                 ++midiq->midibyte;
 771         }
 772
 773         if (data == 0xf7) {
 774                 /* End of Sysex buffer */
 775                 /* Send down the buffer */
 776
 777                 card_mpuin->curstate = card_mpuin->laststate;
 778
 779                 if (card_mpuin->firstmidiq) {
 780                         struct midi_queue *midiq;
 781
 782                         midiq = card_mpuin->firstmidiq;
 783
 784                         spin_lock_irqsave(&card_mpuin->lock, flags);
 785
 786                         card_mpuin->firstmidiq = midiq->next;
 787                         if (card_mpuin->firstmidiq == NULL)
 788                                 card_mpuin->lastmidiq = NULL;
 789
 790                         spin_unlock_irqrestore(&card_mpuin->lock, flags);
 791
 792                         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGDATA, (unsigned long) midiq, 0);
 793
 794                         kfree(midiq);
 795                 }
 796
 797                 return 0;
 798         }
 799
 800         if (card_mpuin->firstmidiq) {
 801                 struct midi_queue *midiq;
 802
 803                 midiq = card_mpuin->firstmidiq;
 804
 805                 if (midiq->sizeLeft == 0) {
 806                         /* Special case */
 807
 808                         spin_lock_irqsave(&card_mpuin->lock, flags);
 809
 810                         card_mpuin->firstmidiq = midiq->next;
 811                         if (card_mpuin->firstmidiq == NULL)
 812                                 card_mpuin->lastmidiq = NULL;
 813
 814                         spin_unlock_irqrestore(&card_mpuin->lock, flags);
 815
 816                         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGDATA, (unsigned long) midiq, 0);
 817
 818                         kfree(midiq);
 819
 820                         return CTSTATUS_NEXT_BYTE;
 821                 }
 822         }
 823
 824         return CTSTATUS_NEXT_BYTE;
 825 }
 826
 827 static int sblive_miStateSysReal(struct emu10k1_mpuin *card_mpuin, u8 data)
 828 {
 829         emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, data, 1);
 830
 831         return CTSTATUS_NEXT_BYTE;
 832 }