1 /* 2 * MOTU Midi Timepiece ALSA Main routines 3 * Copyright by Michael T. Mayers (c) Jan 09, 2000 4 * mail: michael@tweakoz.com 5 * Thanks to John Galbraith 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 * 22 * This driver is for the 'Mark Of The Unicorn' (MOTU) 23 * MidiTimePiece AV multiport MIDI interface 24 * 25 * IOPORTS 26 * ------- 27 * 8 MIDI Ins and 8 MIDI outs 28 * Video Sync In (BNC), Word Sync Out (BNC), 29 * ADAT Sync Out (DB9) 30 * SMPTE in/out (1/4") 31 * 2 programmable pedal/footswitch inputs and 4 programmable MIDI controller knobs. 32 * Macintosh RS422 serial port 33 * RS422 "network" port for ganging multiple MTP's 34 * PC Parallel Port ( which this driver currently uses ) 35 * 36 * MISC FEATURES 37 * ------------- 38 * Hardware MIDI routing, merging, and filtering 39 * MIDI Synchronization to Video, ADAT, SMPTE and other Clock sources 40 * 128 'scene' memories, recallable from MIDI program change 41 * 42 * 43 * ChangeLog 44 * Jun 11 2001 Takashi Iwai <tiwai@suse.de> 45 * - Recoded & debugged 46 * - Added timer interrupt for midi outputs 47 * - hwports is between 1 and 8, which specifies the number of hardware ports. 48 * The three global ports, computer, adat and broadcast ports, are created 49 * always after h/w and remote ports. 50 * 51 */ 52 53 #include <linux/init.h> 54 #include <linux/interrupt.h> 55 #include <linux/module.h> 56 #include <linux/err.h> 57 #include <linux/platform_device.h> 58 #include <linux/ioport.h> 59 #include <linux/io.h> 60 #include <linux/moduleparam.h> 61 #include <sound/core.h> 62 #include <sound/initval.h> 63 #include <sound/rawmidi.h> 64 #include <linux/delay.h> 65 66 /* 67 * globals 68 */ 69 MODULE_AUTHOR("Michael T. Mayers"); 70 MODULE_DESCRIPTION("MOTU MidiTimePiece AV multiport MIDI"); 71 MODULE_LICENSE("GPL"); 72 MODULE_SUPPORTED_DEVICE("{{MOTU,MidiTimePiece AV multiport MIDI}}"); 73 74 // io resources 75 #define MTPAV_IOBASE 0x378 76 #define MTPAV_IRQ 7 77 #define MTPAV_MAX_PORTS 8 78 79 static int index = SNDRV_DEFAULT_IDX1; 80 static char *id = SNDRV_DEFAULT_STR1; 81 static long port = MTPAV_IOBASE; /* 0x378, 0x278 */ 82 static int irq = MTPAV_IRQ; /* 7, 5 */ 83 static int hwports = MTPAV_MAX_PORTS; /* use hardware ports 1-8 */ 84 85 module_param(index, int, 0444); 86 MODULE_PARM_DESC(index, "Index value for MotuMTPAV MIDI."); 87 module_param(id, charp, 0444); 88 MODULE_PARM_DESC(id, "ID string for MotuMTPAV MIDI."); 89 module_param(port, long, 0444); 90 MODULE_PARM_DESC(port, "Parallel port # for MotuMTPAV MIDI."); 91 module_param(irq, int, 0444); 92 MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI."); 93 module_param(hwports, int, 0444); 94 MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI."); 95 96 static struct platform_device *device; 97 98 /* 99 * defines 100 */ 101 //#define USE_FAKE_MTP // don't actually read/write to MTP device (for debugging without an actual unit) (does not work yet) 102 103 // parallel port usage masks 104 #define SIGS_BYTE 0x08 105 #define SIGS_RFD 0x80 106 #define SIGS_IRQ 0x40 107 #define SIGS_IN0 0x10 108 #define SIGS_IN1 0x20 109 110 #define SIGC_WRITE 0x04 111 #define SIGC_READ 0x08 112 #define SIGC_INTEN 0x10 113 114 #define DREG 0 115 #define SREG 1 116 #define CREG 2 117 118 // 119 #define MTPAV_MODE_INPUT_OPENED 0x01 120 #define MTPAV_MODE_OUTPUT_OPENED 0x02 121 #define MTPAV_MODE_INPUT_TRIGGERED 0x04 122 #define MTPAV_MODE_OUTPUT_TRIGGERED 0x08 123 124 #define NUMPORTS (0x12+1) 125 126 127 /* 128 */ 129 130 struct mtpav_port { 131 u8 number; 132 u8 hwport; 133 u8 mode; 134 u8 running_status; 135 struct snd_rawmidi_substream *input; 136 struct snd_rawmidi_substream *output; 137 }; 138 139 struct mtpav { 140 struct snd_card *card; 141 unsigned long port; 142 struct resource *res_port; 143 int irq; /* interrupt (for inputs) */ 144 spinlock_t spinlock; 145 int share_irq; /* number of accesses to input interrupts */ 146 int istimer; /* number of accesses to timer interrupts */ 147 struct timer_list timer; /* timer interrupts for outputs */ 148 struct snd_rawmidi *rmidi; 149 int num_ports; /* number of hw ports (1-8) */ 150 struct mtpav_port ports[NUMPORTS]; /* all ports including computer, adat and bc */ 151 152 u32 inmidiport; /* selected input midi port */ 153 u32 inmidistate; /* during midi command 0xf5 */ 154 155 u32 outmidihwport; /* selected output midi hw port */ 156 }; 157 158 159 /* 160 * possible hardware ports (selected by 0xf5 port message) 161 * 0x00 all ports 162 * 0x01 .. 0x08 this MTP's ports 1..8 163 * 0x09 .. 0x10 networked MTP's ports (9..16) 164 * 0x11 networked MTP's computer port 165 * 0x63 to ADAT 166 * 167 * mappig: 168 * subdevice 0 - (X-1) ports 169 * X - (2*X-1) networked ports 170 * X computer 171 * X+1 ADAT 172 * X+2 all ports 173 * 174 * where X = chip->num_ports 175 */ 176 177 #define MTPAV_PIDX_COMPUTER 0 178 #define MTPAV_PIDX_ADAT 1 179 #define MTPAV_PIDX_BROADCAST 2 180 181 182 static int translate_subdevice_to_hwport(struct mtpav *chip, int subdev) 183 { 184 if (subdev < 0) 185 return 0x01; /* invalid - use port 0 as default */ 186 else if (subdev < chip->num_ports) 187 return subdev + 1; /* single mtp port */ 188 else if (subdev < chip->num_ports * 2) 189 return subdev - chip->num_ports + 0x09; /* remote port */ 190 else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER) 191 return 0x11; /* computer port */ 192 else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT) 193 return 0x63; /* ADAT */ 194 return 0; /* all ports */ 195 } 196 197 static int translate_hwport_to_subdevice(struct mtpav *chip, int hwport) 198 { 199 int p; 200 if (hwport <= 0x00) /* all ports */ 201 return chip->num_ports + MTPAV_PIDX_BROADCAST; 202 else if (hwport <= 0x08) { /* single port */ 203 p = hwport - 1; 204 if (p >= chip->num_ports) 205 p = 0; 206 return p; 207 } else if (hwport <= 0x10) { /* remote port */ 208 p = hwport - 0x09 + chip->num_ports; 209 if (p >= chip->num_ports * 2) 210 p = chip->num_ports; 211 return p; 212 } else if (hwport == 0x11) /* computer port */ 213 return chip->num_ports + MTPAV_PIDX_COMPUTER; 214 else /* ADAT */ 215 return chip->num_ports + MTPAV_PIDX_ADAT; 216 } 217 218 219 /* 220 */ 221 222 static u8 snd_mtpav_getreg(struct mtpav *chip, u16 reg) 223 { 224 u8 rval = 0; 225 226 if (reg == SREG) { 227 rval = inb(chip->port + SREG); 228 rval = (rval & 0xf8); 229 } else if (reg == CREG) { 230 rval = inb(chip->port + CREG); 231 rval = (rval & 0x1c); 232 } 233 234 return rval; 235 } 236 237 /* 238 */ 239 240 static inline void snd_mtpav_mputreg(struct mtpav *chip, u16 reg, u8 val) 241 { 242 if (reg == DREG || reg == CREG) 243 outb(val, chip->port + reg); 244 } 245 246 /* 247 */ 248 249 static void snd_mtpav_wait_rfdhi(struct mtpav *chip) 250 { 251 int counts = 10000; 252 u8 sbyte; 253 254 sbyte = snd_mtpav_getreg(chip, SREG); 255 while (!(sbyte & SIGS_RFD) && counts--) { 256 sbyte = snd_mtpav_getreg(chip, SREG); 257 udelay(10); 258 } 259 } 260 261 static void snd_mtpav_send_byte(struct mtpav *chip, u8 byte) 262 { 263 u8 tcbyt; 264 u8 clrwrite; 265 u8 setwrite; 266 267 snd_mtpav_wait_rfdhi(chip); 268 269 ///////////////// 270 271 tcbyt = snd_mtpav_getreg(chip, CREG); 272 clrwrite = tcbyt & (SIGC_WRITE ^ 0xff); 273 setwrite = tcbyt | SIGC_WRITE; 274 275 snd_mtpav_mputreg(chip, DREG, byte); 276 snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit 277 278 snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit 279 280 } 281 282 283 /* 284 */ 285 286 /* call this with spin lock held */ 287 static void snd_mtpav_output_port_write(struct mtpav *mtp_card, 288 struct mtpav_port *portp, 289 struct snd_rawmidi_substream *substream) 290 { 291 u8 outbyte; 292 293 // Get the outbyte first, so we can emulate running status if 294 // necessary 295 if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1) 296 return; 297 298 // send port change command if necessary 299 300 if (portp->hwport != mtp_card->outmidihwport) { 301 mtp_card->outmidihwport = portp->hwport; 302 303 snd_mtpav_send_byte(mtp_card, 0xf5); 304 snd_mtpav_send_byte(mtp_card, portp->hwport); 305 /* 306 snd_printk(KERN_DEBUG "new outport: 0x%x\n", 307 (unsigned int) portp->hwport); 308 */ 309 if (!(outbyte & 0x80) && portp->running_status) 310 snd_mtpav_send_byte(mtp_card, portp->running_status); 311 } 312 313 // send data 314 315 do { 316 if (outbyte & 0x80) 317 portp->running_status = outbyte; 318 319 snd_mtpav_send_byte(mtp_card, outbyte); 320 } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1); 321 } 322 323 static void snd_mtpav_output_write(struct snd_rawmidi_substream *substream) 324 { 325 struct mtpav *mtp_card = substream->rmidi->private_data; 326 struct mtpav_port *portp = &mtp_card->ports[substream->number]; 327 unsigned long flags; 328 329 spin_lock_irqsave(&mtp_card->spinlock, flags); 330 snd_mtpav_output_port_write(mtp_card, portp, substream); 331 spin_unlock_irqrestore(&mtp_card->spinlock, flags); 332 } 333 334 335 /* 336 * mtpav control 337 */ 338 339 static void snd_mtpav_portscan(struct mtpav *chip) // put mtp into smart routing mode 340 { 341 u8 p; 342 343 for (p = 0; p < 8; p++) { 344 snd_mtpav_send_byte(chip, 0xf5); 345 snd_mtpav_send_byte(chip, p); 346 snd_mtpav_send_byte(chip, 0xfe); 347 } 348 } 349 350 /* 351 */ 352 353 static int snd_mtpav_input_open(struct snd_rawmidi_substream *substream) 354 { 355 struct mtpav *mtp_card = substream->rmidi->private_data; 356 struct mtpav_port *portp = &mtp_card->ports[substream->number]; 357 unsigned long flags; 358 359 spin_lock_irqsave(&mtp_card->spinlock, flags); 360 portp->mode |= MTPAV_MODE_INPUT_OPENED; 361 portp->input = substream; 362 if (mtp_card->share_irq++ == 0) 363 snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts 364 spin_unlock_irqrestore(&mtp_card->spinlock, flags); 365 return 0; 366 } 367 368 /* 369 */ 370 371 static int snd_mtpav_input_close(struct snd_rawmidi_substream *substream) 372 { 373 struct mtpav *mtp_card = substream->rmidi->private_data; 374 struct mtpav_port *portp = &mtp_card->ports[substream->number]; 375 unsigned long flags; 376 377 spin_lock_irqsave(&mtp_card->spinlock, flags); 378 portp->mode &= ~MTPAV_MODE_INPUT_OPENED; 379 portp->input = NULL; 380 if (--mtp_card->share_irq == 0) 381 snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts 382 spin_unlock_irqrestore(&mtp_card->spinlock, flags); 383 return 0; 384 } 385 386 /* 387 */ 388 389 static void snd_mtpav_input_trigger(struct snd_rawmidi_substream *substream, int up) 390 { 391 struct mtpav *mtp_card = substream->rmidi->private_data; 392 struct mtpav_port *portp = &mtp_card->ports[substream->number]; 393 unsigned long flags; 394 395 spin_lock_irqsave(&mtp_card->spinlock, flags); 396 if (up) 397 portp->mode |= MTPAV_MODE_INPUT_TRIGGERED; 398 else 399 portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED; 400 spin_unlock_irqrestore(&mtp_card->spinlock, flags); 401 402 } 403 404 405 /* 406 * timer interrupt for outputs 407 */ 408 409 static void snd_mtpav_output_timer(unsigned long data) 410 { 411 unsigned long flags; 412 struct mtpav *chip = (struct mtpav *)data; 413 int p; 414 415 spin_lock_irqsave(&chip->spinlock, flags); 416 /* reprogram timer */ 417 chip->timer.expires = 1 + jiffies; 418 add_timer(&chip->timer); 419 /* process each port */ 420 for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) { 421 struct mtpav_port *portp = &chip->ports[p]; 422 if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output) 423 snd_mtpav_output_port_write(chip, portp, portp->output); 424 } 425 spin_unlock_irqrestore(&chip->spinlock, flags); 426 } 427 428 /* spinlock held! */ 429 static void snd_mtpav_add_output_timer(struct mtpav *chip) 430 { 431 chip->timer.expires = 1 + jiffies; 432 add_timer(&chip->timer); 433 } 434 435 /* spinlock held! */ 436 static void snd_mtpav_remove_output_timer(struct mtpav *chip) 437 { 438 del_timer(&chip->timer); 439 } 440 441 /* 442 */ 443 444 static int snd_mtpav_output_open(struct snd_rawmidi_substream *substream) 445 { 446 struct mtpav *mtp_card = substream->rmidi->private_data; 447 struct mtpav_port *portp = &mtp_card->ports[substream->number]; 448 unsigned long flags; 449 450 spin_lock_irqsave(&mtp_card->spinlock, flags); 451 portp->mode |= MTPAV_MODE_OUTPUT_OPENED; 452 portp->output = substream; 453 spin_unlock_irqrestore(&mtp_card->spinlock, flags); 454 return 0; 455 }; 456 457 /* 458 */ 459 460 static int snd_mtpav_output_close(struct snd_rawmidi_substream *substream) 461 { 462 struct mtpav *mtp_card = substream->rmidi->private_data; 463 struct mtpav_port *portp = &mtp_card->ports[substream->number]; 464 unsigned long flags; 465 466 spin_lock_irqsave(&mtp_card->spinlock, flags); 467 portp->mode &= ~MTPAV_MODE_OUTPUT_OPENED; 468 portp->output = NULL; 469 spin_unlock_irqrestore(&mtp_card->spinlock, flags); 470 return 0; 471 }; 472 473 /* 474 */ 475 476 static void snd_mtpav_output_trigger(struct snd_rawmidi_substream *substream, int up) 477 { 478 struct mtpav *mtp_card = substream->rmidi->private_data; 479 struct mtpav_port *portp = &mtp_card->ports[substream->number]; 480 unsigned long flags; 481 482 spin_lock_irqsave(&mtp_card->spinlock, flags); 483 if (up) { 484 if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) { 485 if (mtp_card->istimer++ == 0) 486 snd_mtpav_add_output_timer(mtp_card); 487 portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED; 488 } 489 } else { 490 portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED; 491 if (--mtp_card->istimer == 0) 492 snd_mtpav_remove_output_timer(mtp_card); 493 } 494 spin_unlock_irqrestore(&mtp_card->spinlock, flags); 495 496 if (up) 497 snd_mtpav_output_write(substream); 498 } 499 500 /* 501 * midi interrupt for inputs 502 */ 503 504 static void snd_mtpav_inmidi_process(struct mtpav *mcrd, u8 inbyte) 505 { 506 struct mtpav_port *portp; 507 508 if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST) 509 return; 510 511 portp = &mcrd->ports[mcrd->inmidiport]; 512 if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) 513 snd_rawmidi_receive(portp->input, &inbyte, 1); 514 } 515 516 static void snd_mtpav_inmidi_h(struct mtpav *mcrd, u8 inbyte) 517 { 518 if (inbyte >= 0xf8) { 519 /* real-time midi code */ 520 snd_mtpav_inmidi_process(mcrd, inbyte); 521 return; 522 } 523 524 if (mcrd->inmidistate == 0) { // awaiting command 525 if (inbyte == 0xf5) // MTP port # 526 mcrd->inmidistate = 1; 527 else 528 snd_mtpav_inmidi_process(mcrd, inbyte); 529 } else if (mcrd->inmidistate) { 530 mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte); 531 mcrd->inmidistate = 0; 532 } 533 } 534 535 static void snd_mtpav_read_bytes(struct mtpav *mcrd) 536 { 537 u8 clrread, setread; 538 u8 mtp_read_byte; 539 u8 sr, cbyt; 540 int i; 541 542 u8 sbyt = snd_mtpav_getreg(mcrd, SREG); 543 544 /* printk(KERN_DEBUG "snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt); */ 545 546 if (!(sbyt & SIGS_BYTE)) 547 return; 548 549 cbyt = snd_mtpav_getreg(mcrd, CREG); 550 clrread = cbyt & (SIGC_READ ^ 0xff); 551 setread = cbyt | SIGC_READ; 552 553 do { 554 555 mtp_read_byte = 0; 556 for (i = 0; i < 4; i++) { 557 snd_mtpav_mputreg(mcrd, CREG, setread); 558 sr = snd_mtpav_getreg(mcrd, SREG); 559 snd_mtpav_mputreg(mcrd, CREG, clrread); 560 561 sr &= SIGS_IN0 | SIGS_IN1; 562 sr >>= 4; 563 mtp_read_byte |= sr << (i * 2); 564 } 565 566 snd_mtpav_inmidi_h(mcrd, mtp_read_byte); 567 568 sbyt = snd_mtpav_getreg(mcrd, SREG); 569 570 } while (sbyt & SIGS_BYTE); 571 } 572 573 static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id) 574 { 575 struct mtpav *mcard = dev_id; 576 577 spin_lock(&mcard->spinlock); 578 snd_mtpav_read_bytes(mcard); 579 spin_unlock(&mcard->spinlock); 580 return IRQ_HANDLED; 581 } 582 583 /* 584 * get ISA resources 585 */ 586 static int snd_mtpav_get_ISA(struct mtpav *mcard) 587 { 588 if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) { 589 snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port); 590 return -EBUSY; 591 } 592 mcard->port = port; 593 if (request_irq(irq, snd_mtpav_irqh, 0, "MOTU MTPAV", mcard)) { 594 snd_printk(KERN_ERR "MTVAP IRQ %d busy\n", irq); 595 return -EBUSY; 596 } 597 mcard->irq = irq; 598 return 0; 599 } 600 601 602 /* 603 */ 604 605 static struct snd_rawmidi_ops snd_mtpav_output = { 606 .open = snd_mtpav_output_open, 607 .close = snd_mtpav_output_close, 608 .trigger = snd_mtpav_output_trigger, 609 }; 610 611 static struct snd_rawmidi_ops snd_mtpav_input = { 612 .open = snd_mtpav_input_open, 613 .close = snd_mtpav_input_close, 614 .trigger = snd_mtpav_input_trigger, 615 }; 616 617 618 /* 619 * get RAWMIDI resources 620 */ 621 622 static void snd_mtpav_set_name(struct mtpav *chip, 623 struct snd_rawmidi_substream *substream) 624 { 625 if (substream->number >= 0 && substream->number < chip->num_ports) 626 sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1); 627 else if (substream->number >= 8 && substream->number < chip->num_ports * 2) 628 sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1); 629 else if (substream->number == chip->num_ports * 2) 630 strcpy(substream->name, "MTP computer"); 631 else if (substream->number == chip->num_ports * 2 + 1) 632 strcpy(substream->name, "MTP ADAT"); 633 else 634 strcpy(substream->name, "MTP broadcast"); 635 } 636 637 static int snd_mtpav_get_RAWMIDI(struct mtpav *mcard) 638 { 639 int rval; 640 struct snd_rawmidi *rawmidi; 641 struct snd_rawmidi_substream *substream; 642 struct list_head *list; 643 644 if (hwports < 1) 645 hwports = 1; 646 else if (hwports > 8) 647 hwports = 8; 648 mcard->num_ports = hwports; 649 650 if ((rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0, 651 mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, 652 mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, 653 &mcard->rmidi)) < 0) 654 return rval; 655 rawmidi = mcard->rmidi; 656 rawmidi->private_data = mcard; 657 658 list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { 659 substream = list_entry(list, struct snd_rawmidi_substream, list); 660 snd_mtpav_set_name(mcard, substream); 661 substream->ops = &snd_mtpav_input; 662 } 663 list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { 664 substream = list_entry(list, struct snd_rawmidi_substream, list); 665 snd_mtpav_set_name(mcard, substream); 666 substream->ops = &snd_mtpav_output; 667 mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number); 668 } 669 rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | 670 SNDRV_RAWMIDI_INFO_DUPLEX; 671 sprintf(rawmidi->name, "MTP AV MIDI"); 672 return 0; 673 } 674 675 /* 676 */ 677 678 static void snd_mtpav_free(struct snd_card *card) 679 { 680 struct mtpav *crd = card->private_data; 681 unsigned long flags; 682 683 spin_lock_irqsave(&crd->spinlock, flags); 684 if (crd->istimer > 0) 685 snd_mtpav_remove_output_timer(crd); 686 spin_unlock_irqrestore(&crd->spinlock, flags); 687 if (crd->irq >= 0) 688 free_irq(crd->irq, (void *)crd); 689 release_and_free_resource(crd->res_port); 690 } 691 692 /* 693 */ 694 static int snd_mtpav_probe(struct platform_device *dev) 695 { 696 struct snd_card *card; 697 int err; 698 struct mtpav *mtp_card; 699 700 err = snd_card_create(index, id, THIS_MODULE, sizeof(*mtp_card), &card); 701 if (err < 0) 702 return err; 703 704 mtp_card = card->private_data; 705 spin_lock_init(&mtp_card->spinlock); 706 init_timer(&mtp_card->timer); 707 mtp_card->card = card; 708 mtp_card->irq = -1; 709 mtp_card->share_irq = 0; 710 mtp_card->inmidistate = 0; 711 mtp_card->outmidihwport = 0xffffffff; 712 init_timer(&mtp_card->timer); 713 mtp_card->timer.function = snd_mtpav_output_timer; 714 mtp_card->timer.data = (unsigned long) mtp_card; 715 716 card->private_free = snd_mtpav_free; 717 718 err = snd_mtpav_get_RAWMIDI(mtp_card); 719 if (err < 0) 720 goto __error; 721 722 mtp_card->inmidiport = mtp_card->num_ports + MTPAV_PIDX_BROADCAST; 723 724 err = snd_mtpav_get_ISA(mtp_card); 725 if (err < 0) 726 goto __error; 727 728 strcpy(card->driver, "MTPAV"); 729 strcpy(card->shortname, "MTPAV on parallel port"); 730 snprintf(card->longname, sizeof(card->longname), 731 "MTPAV on parallel port at 0x%lx", port); 732 733 snd_mtpav_portscan(mtp_card); 734 735 snd_card_set_dev(card, &dev->dev); 736 err = snd_card_register(mtp_card->card); 737 if (err < 0) 738 goto __error; 739 740 platform_set_drvdata(dev, card); 741 printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port); 742 return 0; 743 744 __error: 745 snd_card_free(card); 746 return err; 747 } 748 749 static int snd_mtpav_remove(struct platform_device *devptr) 750 { 751 snd_card_free(platform_get_drvdata(devptr)); 752 platform_set_drvdata(devptr, NULL); 753 return 0; 754 } 755 756 #define SND_MTPAV_DRIVER "snd_mtpav" 757 758 static struct platform_driver snd_mtpav_driver = { 759 .probe = snd_mtpav_probe, 760 .remove = snd_mtpav_remove, 761 .driver = { 762 .name = SND_MTPAV_DRIVER, 763 .owner = THIS_MODULE, 764 }, 765 }; 766 767 static int __init alsa_card_mtpav_init(void) 768 { 769 int err; 770 771 if ((err = platform_driver_register(&snd_mtpav_driver)) < 0) 772 return err; 773 774 device = platform_device_register_simple(SND_MTPAV_DRIVER, -1, NULL, 0); 775 if (!IS_ERR(device)) { 776 if (platform_get_drvdata(device)) 777 return 0; 778 platform_device_unregister(device); 779 err = -ENODEV; 780 } else 781 err = PTR_ERR(device); 782 platform_driver_unregister(&snd_mtpav_driver); 783 return err; 784 } 785 786 static void __exit alsa_card_mtpav_exit(void) 787 { 788 platform_device_unregister(device); 789 platform_driver_unregister(&snd_mtpav_driver); 790 } 791 792 module_init(alsa_card_mtpav_init) 793 module_exit(alsa_card_mtpav_exit) 794