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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 | /* * MOTU Midi Timepiece ALSA Main routines * Copyright by Michael T. Mayers (c) Jan 09, 2000 * mail: michael@tweakoz.com * Thanks to John Galbraith * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * * This driver is for the 'Mark Of The Unicorn' (MOTU) * MidiTimePiece AV multiport MIDI interface * * IOPORTS * ------- * 8 MIDI Ins and 8 MIDI outs * Video Sync In (BNC), Word Sync Out (BNC), * ADAT Sync Out (DB9) * SMPTE in/out (1/4") * 2 programmable pedal/footswitch inputs and 4 programmable MIDI controller knobs. * Macintosh RS422 serial port * RS422 "network" port for ganging multiple MTP's * PC Parallel Port ( which this driver currently uses ) * * MISC FEATURES * ------------- * Hardware MIDI routing, merging, and filtering * MIDI Synchronization to Video, ADAT, SMPTE and other Clock sources * 128 'scene' memories, recallable from MIDI program change * * * ChangeLog * Jun 11 2001 Takashi Iwai <tiwai@suse.de> * - Recoded & debugged * - Added timer interrupt for midi outputs * - hwports is between 1 and 8, which specifies the number of hardware ports. * The three global ports, computer, adat and broadcast ports, are created * always after h/w and remote ports. * */ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/err.h> #include <linux/platform_device.h> #include <linux/ioport.h> #include <linux/io.h> #include <linux/moduleparam.h> #include <sound/core.h> #include <sound/initval.h> #include <sound/rawmidi.h> #include <linux/delay.h> /* * globals */ MODULE_AUTHOR("Michael T. Mayers"); MODULE_DESCRIPTION("MOTU MidiTimePiece AV multiport MIDI"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{MOTU,MidiTimePiece AV multiport MIDI}}"); // io resources #define MTPAV_IOBASE 0x378 #define MTPAV_IRQ 7 #define MTPAV_MAX_PORTS 8 static int index = SNDRV_DEFAULT_IDX1; static char *id = SNDRV_DEFAULT_STR1; static long port = MTPAV_IOBASE; /* 0x378, 0x278 */ static int irq = MTPAV_IRQ; /* 7, 5 */ static int hwports = MTPAV_MAX_PORTS; /* use hardware ports 1-8 */ module_param(index, int, 0444); MODULE_PARM_DESC(index, "Index value for MotuMTPAV MIDI."); module_param(id, charp, 0444); MODULE_PARM_DESC(id, "ID string for MotuMTPAV MIDI."); module_param(port, long, 0444); MODULE_PARM_DESC(port, "Parallel port # for MotuMTPAV MIDI."); module_param(irq, int, 0444); MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI."); module_param(hwports, int, 0444); MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI."); static struct platform_device *device; /* * defines */ //#define USE_FAKE_MTP // don't actually read/write to MTP device (for debugging without an actual unit) (does not work yet) // parallel port usage masks #define SIGS_BYTE 0x08 #define SIGS_RFD 0x80 #define SIGS_IRQ 0x40 #define SIGS_IN0 0x10 #define SIGS_IN1 0x20 #define SIGC_WRITE 0x04 #define SIGC_READ 0x08 #define SIGC_INTEN 0x10 #define DREG 0 #define SREG 1 #define CREG 2 // #define MTPAV_MODE_INPUT_OPENED 0x01 #define MTPAV_MODE_OUTPUT_OPENED 0x02 #define MTPAV_MODE_INPUT_TRIGGERED 0x04 #define MTPAV_MODE_OUTPUT_TRIGGERED 0x08 #define NUMPORTS (0x12+1) /* */ struct mtpav_port { u8 number; u8 hwport; u8 mode; u8 running_status; struct snd_rawmidi_substream *input; struct snd_rawmidi_substream *output; }; struct mtpav { struct snd_card *card; unsigned long port; struct resource *res_port; int irq; /* interrupt (for inputs) */ spinlock_t spinlock; int share_irq; /* number of accesses to input interrupts */ int istimer; /* number of accesses to timer interrupts */ struct timer_list timer; /* timer interrupts for outputs */ struct snd_rawmidi *rmidi; int num_ports; /* number of hw ports (1-8) */ struct mtpav_port ports[NUMPORTS]; /* all ports including computer, adat and bc */ u32 inmidiport; /* selected input midi port */ u32 inmidistate; /* during midi command 0xf5 */ u32 outmidihwport; /* selected output midi hw port */ }; /* * possible hardware ports (selected by 0xf5 port message) * 0x00 all ports * 0x01 .. 0x08 this MTP's ports 1..8 * 0x09 .. 0x10 networked MTP's ports (9..16) * 0x11 networked MTP's computer port * 0x63 to ADAT * * mappig: * subdevice 0 - (X-1) ports * X - (2*X-1) networked ports * X computer * X+1 ADAT * X+2 all ports * * where X = chip->num_ports */ #define MTPAV_PIDX_COMPUTER 0 #define MTPAV_PIDX_ADAT 1 #define MTPAV_PIDX_BROADCAST 2 static int translate_subdevice_to_hwport(struct mtpav *chip, int subdev) { if (subdev < 0) return 0x01; /* invalid - use port 0 as default */ else if (subdev < chip->num_ports) return subdev + 1; /* single mtp port */ else if (subdev < chip->num_ports * 2) return subdev - chip->num_ports + 0x09; /* remote port */ else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER) return 0x11; /* computer port */ else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT) return 0x63; /* ADAT */ return 0; /* all ports */ } static int translate_hwport_to_subdevice(struct mtpav *chip, int hwport) { int p; if (hwport <= 0x00) /* all ports */ return chip->num_ports + MTPAV_PIDX_BROADCAST; else if (hwport <= 0x08) { /* single port */ p = hwport - 1; if (p >= chip->num_ports) p = 0; return p; } else if (hwport <= 0x10) { /* remote port */ p = hwport - 0x09 + chip->num_ports; if (p >= chip->num_ports * 2) p = chip->num_ports; return p; } else if (hwport == 0x11) /* computer port */ return chip->num_ports + MTPAV_PIDX_COMPUTER; else /* ADAT */ return chip->num_ports + MTPAV_PIDX_ADAT; } /* */ static u8 snd_mtpav_getreg(struct mtpav *chip, u16 reg) { u8 rval = 0; if (reg == SREG) { rval = inb(chip->port + SREG); rval = (rval & 0xf8); } else if (reg == CREG) { rval = inb(chip->port + CREG); rval = (rval & 0x1c); } return rval; } /* */ static inline void snd_mtpav_mputreg(struct mtpav *chip, u16 reg, u8 val) { if (reg == DREG || reg == CREG) outb(val, chip->port + reg); } /* */ static void snd_mtpav_wait_rfdhi(struct mtpav *chip) { int counts = 10000; u8 sbyte; sbyte = snd_mtpav_getreg(chip, SREG); while (!(sbyte & SIGS_RFD) && counts--) { sbyte = snd_mtpav_getreg(chip, SREG); udelay(10); } } static void snd_mtpav_send_byte(struct mtpav *chip, u8 byte) { u8 tcbyt; u8 clrwrite; u8 setwrite; snd_mtpav_wait_rfdhi(chip); ///////////////// tcbyt = snd_mtpav_getreg(chip, CREG); clrwrite = tcbyt & (SIGC_WRITE ^ 0xff); setwrite = tcbyt | SIGC_WRITE; snd_mtpav_mputreg(chip, DREG, byte); snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit } /* */ /* call this with spin lock held */ static void snd_mtpav_output_port_write(struct mtpav *mtp_card, struct mtpav_port *portp, struct snd_rawmidi_substream *substream) { u8 outbyte; // Get the outbyte first, so we can emulate running status if // necessary if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1) return; // send port change command if necessary if (portp->hwport != mtp_card->outmidihwport) { mtp_card->outmidihwport = portp->hwport; snd_mtpav_send_byte(mtp_card, 0xf5); snd_mtpav_send_byte(mtp_card, portp->hwport); /* snd_printk(KERN_DEBUG "new outport: 0x%x\n", (unsigned int) portp->hwport); */ if (!(outbyte & 0x80) && portp->running_status) snd_mtpav_send_byte(mtp_card, portp->running_status); } // send data do { if (outbyte & 0x80) portp->running_status = outbyte; snd_mtpav_send_byte(mtp_card, outbyte); } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1); } static void snd_mtpav_output_write(struct snd_rawmidi_substream *substream) { struct mtpav *mtp_card = substream->rmidi->private_data; struct mtpav_port *portp = &mtp_card->ports[substream->number]; unsigned long flags; spin_lock_irqsave(&mtp_card->spinlock, flags); snd_mtpav_output_port_write(mtp_card, portp, substream); spin_unlock_irqrestore(&mtp_card->spinlock, flags); } /* * mtpav control */ static void snd_mtpav_portscan(struct mtpav *chip) // put mtp into smart routing mode { u8 p; for (p = 0; p < 8; p++) { snd_mtpav_send_byte(chip, 0xf5); snd_mtpav_send_byte(chip, p); snd_mtpav_send_byte(chip, 0xfe); } } /* */ static int snd_mtpav_input_open(struct snd_rawmidi_substream *substream) { struct mtpav *mtp_card = substream->rmidi->private_data; struct mtpav_port *portp = &mtp_card->ports[substream->number]; unsigned long flags; spin_lock_irqsave(&mtp_card->spinlock, flags); portp->mode |= MTPAV_MODE_INPUT_OPENED; portp->input = substream; if (mtp_card->share_irq++ == 0) snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts spin_unlock_irqrestore(&mtp_card->spinlock, flags); return 0; } /* */ static int snd_mtpav_input_close(struct snd_rawmidi_substream *substream) { struct mtpav *mtp_card = substream->rmidi->private_data; struct mtpav_port *portp = &mtp_card->ports[substream->number]; unsigned long flags; spin_lock_irqsave(&mtp_card->spinlock, flags); portp->mode &= ~MTPAV_MODE_INPUT_OPENED; portp->input = NULL; if (--mtp_card->share_irq == 0) snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts spin_unlock_irqrestore(&mtp_card->spinlock, flags); return 0; } /* */ static void snd_mtpav_input_trigger(struct snd_rawmidi_substream *substream, int up) { struct mtpav *mtp_card = substream->rmidi->private_data; struct mtpav_port *portp = &mtp_card->ports[substream->number]; unsigned long flags; spin_lock_irqsave(&mtp_card->spinlock, flags); if (up) portp->mode |= MTPAV_MODE_INPUT_TRIGGERED; else portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED; spin_unlock_irqrestore(&mtp_card->spinlock, flags); } /* * timer interrupt for outputs */ static void snd_mtpav_output_timer(unsigned long data) { unsigned long flags; struct mtpav *chip = (struct mtpav *)data; int p; spin_lock_irqsave(&chip->spinlock, flags); /* reprogram timer */ chip->timer.expires = 1 + jiffies; add_timer(&chip->timer); /* process each port */ for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) { struct mtpav_port *portp = &chip->ports[p]; if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output) snd_mtpav_output_port_write(chip, portp, portp->output); } spin_unlock_irqrestore(&chip->spinlock, flags); } /* spinlock held! */ static void snd_mtpav_add_output_timer(struct mtpav *chip) { chip->timer.expires = 1 + jiffies; add_timer(&chip->timer); } /* spinlock held! */ static void snd_mtpav_remove_output_timer(struct mtpav *chip) { del_timer(&chip->timer); } /* */ static int snd_mtpav_output_open(struct snd_rawmidi_substream *substream) { struct mtpav *mtp_card = substream->rmidi->private_data; struct mtpav_port *portp = &mtp_card->ports[substream->number]; unsigned long flags; spin_lock_irqsave(&mtp_card->spinlock, flags); portp->mode |= MTPAV_MODE_OUTPUT_OPENED; portp->output = substream; spin_unlock_irqrestore(&mtp_card->spinlock, flags); return 0; }; /* */ static int snd_mtpav_output_close(struct snd_rawmidi_substream *substream) { struct mtpav *mtp_card = substream->rmidi->private_data; struct mtpav_port *portp = &mtp_card->ports[substream->number]; unsigned long flags; spin_lock_irqsave(&mtp_card->spinlock, flags); portp->mode &= ~MTPAV_MODE_OUTPUT_OPENED; portp->output = NULL; spin_unlock_irqrestore(&mtp_card->spinlock, flags); return 0; }; /* */ static void snd_mtpav_output_trigger(struct snd_rawmidi_substream *substream, int up) { struct mtpav *mtp_card = substream->rmidi->private_data; struct mtpav_port *portp = &mtp_card->ports[substream->number]; unsigned long flags; spin_lock_irqsave(&mtp_card->spinlock, flags); if (up) { if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) { if (mtp_card->istimer++ == 0) snd_mtpav_add_output_timer(mtp_card); portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED; } } else { portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED; if (--mtp_card->istimer == 0) snd_mtpav_remove_output_timer(mtp_card); } spin_unlock_irqrestore(&mtp_card->spinlock, flags); if (up) snd_mtpav_output_write(substream); } /* * midi interrupt for inputs */ static void snd_mtpav_inmidi_process(struct mtpav *mcrd, u8 inbyte) { struct mtpav_port *portp; if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST) return; portp = &mcrd->ports[mcrd->inmidiport]; if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) snd_rawmidi_receive(portp->input, &inbyte, 1); } static void snd_mtpav_inmidi_h(struct mtpav *mcrd, u8 inbyte) { if (inbyte >= 0xf8) { /* real-time midi code */ snd_mtpav_inmidi_process(mcrd, inbyte); return; } if (mcrd->inmidistate == 0) { // awaiting command if (inbyte == 0xf5) // MTP port # mcrd->inmidistate = 1; else snd_mtpav_inmidi_process(mcrd, inbyte); } else if (mcrd->inmidistate) { mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte); mcrd->inmidistate = 0; } } static void snd_mtpav_read_bytes(struct mtpav *mcrd) { u8 clrread, setread; u8 mtp_read_byte; u8 sr, cbyt; int i; u8 sbyt = snd_mtpav_getreg(mcrd, SREG); /* printk(KERN_DEBUG "snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt); */ if (!(sbyt & SIGS_BYTE)) return; cbyt = snd_mtpav_getreg(mcrd, CREG); clrread = cbyt & (SIGC_READ ^ 0xff); setread = cbyt | SIGC_READ; do { mtp_read_byte = 0; for (i = 0; i < 4; i++) { snd_mtpav_mputreg(mcrd, CREG, setread); sr = snd_mtpav_getreg(mcrd, SREG); snd_mtpav_mputreg(mcrd, CREG, clrread); sr &= SIGS_IN0 | SIGS_IN1; sr >>= 4; mtp_read_byte |= sr << (i * 2); } snd_mtpav_inmidi_h(mcrd, mtp_read_byte); sbyt = snd_mtpav_getreg(mcrd, SREG); } while (sbyt & SIGS_BYTE); } static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id) { struct mtpav *mcard = dev_id; spin_lock(&mcard->spinlock); snd_mtpav_read_bytes(mcard); spin_unlock(&mcard->spinlock); return IRQ_HANDLED; } /* * get ISA resources */ static int snd_mtpav_get_ISA(struct mtpav *mcard) { if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) { snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port); return -EBUSY; } mcard->port = port; if (request_irq(irq, snd_mtpav_irqh, 0, "MOTU MTPAV", mcard)) { snd_printk(KERN_ERR "MTVAP IRQ %d busy\n", irq); return -EBUSY; } mcard->irq = irq; return 0; } /* */ static struct snd_rawmidi_ops snd_mtpav_output = { .open = snd_mtpav_output_open, .close = snd_mtpav_output_close, .trigger = snd_mtpav_output_trigger, }; static struct snd_rawmidi_ops snd_mtpav_input = { .open = snd_mtpav_input_open, .close = snd_mtpav_input_close, .trigger = snd_mtpav_input_trigger, }; /* * get RAWMIDI resources */ static void snd_mtpav_set_name(struct mtpav *chip, struct snd_rawmidi_substream *substream) { if (substream->number >= 0 && substream->number < chip->num_ports) sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1); else if (substream->number >= 8 && substream->number < chip->num_ports * 2) sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1); else if (substream->number == chip->num_ports * 2) strcpy(substream->name, "MTP computer"); else if (substream->number == chip->num_ports * 2 + 1) strcpy(substream->name, "MTP ADAT"); else strcpy(substream->name, "MTP broadcast"); } static int snd_mtpav_get_RAWMIDI(struct mtpav *mcard) { int rval; struct snd_rawmidi *rawmidi; struct snd_rawmidi_substream *substream; struct list_head *list; if (hwports < 1) hwports = 1; else if (hwports > 8) hwports = 8; mcard->num_ports = hwports; if ((rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0, mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, &mcard->rmidi)) < 0) return rval; rawmidi = mcard->rmidi; rawmidi->private_data = mcard; list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { substream = list_entry(list, struct snd_rawmidi_substream, list); snd_mtpav_set_name(mcard, substream); substream->ops = &snd_mtpav_input; } list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { substream = list_entry(list, struct snd_rawmidi_substream, list); snd_mtpav_set_name(mcard, substream); substream->ops = &snd_mtpav_output; mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number); } rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; sprintf(rawmidi->name, "MTP AV MIDI"); return 0; } /* */ static void snd_mtpav_free(struct snd_card *card) { struct mtpav *crd = card->private_data; unsigned long flags; spin_lock_irqsave(&crd->spinlock, flags); if (crd->istimer > 0) snd_mtpav_remove_output_timer(crd); spin_unlock_irqrestore(&crd->spinlock, flags); if (crd->irq >= 0) free_irq(crd->irq, (void *)crd); release_and_free_resource(crd->res_port); } /* */ static int snd_mtpav_probe(struct platform_device *dev) { struct snd_card *card; int err; struct mtpav *mtp_card; err = snd_card_create(index, id, THIS_MODULE, sizeof(*mtp_card), &card); if (err < 0) return err; mtp_card = card->private_data; spin_lock_init(&mtp_card->spinlock); init_timer(&mtp_card->timer); mtp_card->card = card; mtp_card->irq = -1; mtp_card->share_irq = 0; mtp_card->inmidistate = 0; mtp_card->outmidihwport = 0xffffffff; init_timer(&mtp_card->timer); mtp_card->timer.function = snd_mtpav_output_timer; mtp_card->timer.data = (unsigned long) mtp_card; card->private_free = snd_mtpav_free; err = snd_mtpav_get_RAWMIDI(mtp_card); if (err < 0) goto __error; mtp_card->inmidiport = mtp_card->num_ports + MTPAV_PIDX_BROADCAST; err = snd_mtpav_get_ISA(mtp_card); if (err < 0) goto __error; strcpy(card->driver, "MTPAV"); strcpy(card->shortname, "MTPAV on parallel port"); snprintf(card->longname, sizeof(card->longname), "MTPAV on parallel port at 0x%lx", port); snd_mtpav_portscan(mtp_card); snd_card_set_dev(card, &dev->dev); err = snd_card_register(mtp_card->card); if (err < 0) goto __error; platform_set_drvdata(dev, card); printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port); return 0; __error: snd_card_free(card); return err; } static int snd_mtpav_remove(struct platform_device *devptr) { snd_card_free(platform_get_drvdata(devptr)); platform_set_drvdata(devptr, NULL); return 0; } #define SND_MTPAV_DRIVER "snd_mtpav" static struct platform_driver snd_mtpav_driver = { .probe = snd_mtpav_probe, .remove = snd_mtpav_remove, .driver = { .name = SND_MTPAV_DRIVER, .owner = THIS_MODULE, }, }; static int __init alsa_card_mtpav_init(void) { int err; if ((err = platform_driver_register(&snd_mtpav_driver)) < 0) return err; device = platform_device_register_simple(SND_MTPAV_DRIVER, -1, NULL, 0); if (!IS_ERR(device)) { if (platform_get_drvdata(device)) return 0; platform_device_unregister(device); err = -ENODEV; } else err = PTR_ERR(device); platform_driver_unregister(&snd_mtpav_driver); return err; } static void __exit alsa_card_mtpav_exit(void) { platform_device_unregister(device); platform_driver_unregister(&snd_mtpav_driver); } module_init(alsa_card_mtpav_init) module_exit(alsa_card_mtpav_exit) |