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Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/gregkh/driver...
[linux-2.6/verdex.git] / sound / drivers / mtpav.c
blob1280a57c49eb89ba3157a4a7a1e15b51394d660f
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 <sound/driver.h>
54 #include <linux/init.h>
55 #include <linux/interrupt.h>
56 #include <linux/slab.h>
57 #include <linux/ioport.h>
58 #include <linux/moduleparam.h>
59 #include <sound/core.h>
60 #include <sound/initval.h>
61 #include <sound/rawmidi.h>
62 #include <linux/delay.h>
63
64 #include <asm/io.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 /*
97 * defines
98 */
99 //#define USE_FAKE_MTP // don't actually read/write to MTP device (for debugging without an actual unit) (does not work yet)
100
101 // parallel port usage masks
102 #define SIGS_BYTE 0x08
103 #define SIGS_RFD 0x80
104 #define SIGS_IRQ 0x40
105 #define SIGS_IN0 0x10
106 #define SIGS_IN1 0x20
107
108 #define SIGC_WRITE 0x04
109 #define SIGC_READ 0x08
110 #define SIGC_INTEN 0x10
111
112 #define DREG 0
113 #define SREG 1
114 #define CREG 2
115
116 //
117 #define MTPAV_MODE_INPUT_OPENED 0x01
118 #define MTPAV_MODE_OUTPUT_OPENED 0x02
119 #define MTPAV_MODE_INPUT_TRIGGERED 0x04
120 #define MTPAV_MODE_OUTPUT_TRIGGERED 0x08
121
122 #define NUMPORTS (0x12+1)
123
124
125 /*
126 */
127
128 typedef struct mtpav_port {
129 u8 number;
130 u8 hwport;
131 u8 mode;
132 u8 running_status;
133 snd_rawmidi_substream_t *input;
134 snd_rawmidi_substream_t *output;
135 } mtpav_port_t;
136
137 typedef struct mtpav {
138 snd_card_t *card;
139 unsigned long port;
140 struct resource *res_port;
141 int irq; /* interrupt (for inputs) */
142 spinlock_t spinlock;
143 int share_irq; /* number of accesses to input interrupts */
144 int istimer; /* number of accesses to timer interrupts */
145 struct timer_list timer; /* timer interrupts for outputs */
146 snd_rawmidi_t *rmidi;
147 int num_ports; /* number of hw ports (1-8) */
148 mtpav_port_t ports[NUMPORTS]; /* all ports including computer, adat and bc */
149
150 u32 inmidiport; /* selected input midi port */
151 u32 inmidistate; /* during midi command 0xf5 */
152
153 u32 outmidihwport; /* selected output midi hw port */
154 } mtpav_t;
155
156
157 /*
158 * global instance
159 * hey, we handle at most only one card..
160 */
161 static mtpav_t *mtp_card;
162
163 /*
164 * possible hardware ports (selected by 0xf5 port message)
165 * 0x00 all ports
166 * 0x01 .. 0x08 this MTP's ports 1..8
167 * 0x09 .. 0x10 networked MTP's ports (9..16)
168 * 0x11 networked MTP's computer port
169 * 0x63 to ADAT
170 *
171 * mappig:
172 * subdevice 0 - (X-1) ports
173 * X - (2*X-1) networked ports
174 * X computer
175 * X+1 ADAT
176 * X+2 all ports
177 *
178 * where X = chip->num_ports
179 */
180
181 #define MTPAV_PIDX_COMPUTER 0
182 #define MTPAV_PIDX_ADAT 1
183 #define MTPAV_PIDX_BROADCAST 2
184
185
186 static int translate_subdevice_to_hwport(mtpav_t *chip, int subdev)
187 {
188 if (subdev < 0)
189 return 0x01; /* invalid - use port 0 as default */
190 else if (subdev < chip->num_ports)
191 return subdev + 1; /* single mtp port */
192 else if (subdev < chip->num_ports * 2)
193 return subdev - chip->num_ports + 0x09; /* remote port */
194 else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER)
195 return 0x11; /* computer port */
196 else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT)
197 return 0x63; /* ADAT */
198 return 0; /* all ports */
199 }
200
201 static int translate_hwport_to_subdevice(mtpav_t *chip, int hwport)
202 {
203 int p;
204 if (hwport <= 0x00) /* all ports */
205 return chip->num_ports + MTPAV_PIDX_BROADCAST;
206 else if (hwport <= 0x08) { /* single port */
207 p = hwport - 1;
208 if (p >= chip->num_ports)
209 p = 0;
210 return p;
211 } else if (hwport <= 0x10) { /* remote port */
212 p = hwport - 0x09 + chip->num_ports;
213 if (p >= chip->num_ports * 2)
214 p = chip->num_ports;
215 return p;
216 } else if (hwport == 0x11) /* computer port */
217 return chip->num_ports + MTPAV_PIDX_COMPUTER;
218 else /* ADAT */
219 return chip->num_ports + MTPAV_PIDX_ADAT;
220 }
221
222
223 /*
224 */
225
226 static u8 snd_mtpav_getreg(mtpav_t *chip, u16 reg)
227 {
228 u8 rval = 0;
229
230 if (reg == SREG) {
231 rval = inb(chip->port + SREG);
232 rval = (rval & 0xf8);
233 } else if (reg == CREG) {
234 rval = inb(chip->port + CREG);
235 rval = (rval & 0x1c);
236 }
237
238 return rval;
239 }
240
241 /*
242 */
243
244 static void snd_mtpav_mputreg(mtpav_t *chip, u16 reg, u8 val)
245 {
246 if (reg == DREG) {
247 outb(val, chip->port + DREG);
248 } else if (reg == CREG) {
249 outb(val, chip->port + CREG);
250 }
251 }
252
253 /*
254 */
255
256 static void snd_mtpav_wait_rfdhi(mtpav_t *chip)
257 {
258 int counts = 10000;
259 u8 sbyte;
260
261 sbyte = snd_mtpav_getreg(chip, SREG);
262 while (!(sbyte & SIGS_RFD) && counts--) {
263 sbyte = snd_mtpav_getreg(chip, SREG);
264 udelay(10);
265 }
266 }
267
268 static void snd_mtpav_send_byte(mtpav_t *chip, u8 byte)
269 {
270 u8 tcbyt;
271 u8 clrwrite;
272 u8 setwrite;
273
274 snd_mtpav_wait_rfdhi(chip);
275
276 /////////////////
277
278 tcbyt = snd_mtpav_getreg(chip, CREG);
279 clrwrite = tcbyt & (SIGC_WRITE ^ 0xff);
280 setwrite = tcbyt | SIGC_WRITE;
281
282 snd_mtpav_mputreg(chip, DREG, byte);
283 snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit
284
285 snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit
286
287 }
288
289
290 /*
291 */
292
293 /* call this with spin lock held */
294 static void snd_mtpav_output_port_write(mtpav_port_t *port,
295 snd_rawmidi_substream_t *substream)
296 {
297 u8 outbyte;
298
299 // Get the outbyte first, so we can emulate running status if
300 // necessary
301 if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1)
302 return;
303
304 // send port change command if necessary
305
306 if (port->hwport != mtp_card->outmidihwport) {
307 mtp_card->outmidihwport = port->hwport;
308
309 snd_mtpav_send_byte(mtp_card, 0xf5);
310 snd_mtpav_send_byte(mtp_card, port->hwport);
311 //snd_printk("new outport: 0x%x\n", (unsigned int) port->hwport);
312
313 if (!(outbyte & 0x80) && port->running_status)
314 snd_mtpav_send_byte(mtp_card, port->running_status);
315 }
316
317 // send data
318
319 do {
320 if (outbyte & 0x80)
321 port->running_status = outbyte;
322
323 snd_mtpav_send_byte(mtp_card, outbyte);
324 } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1);
325 }
326
327 static void snd_mtpav_output_write(snd_rawmidi_substream_t * substream)
328 {
329 mtpav_port_t *port = &mtp_card->ports[substream->number];
330 unsigned long flags;
331
332 spin_lock_irqsave(&mtp_card->spinlock, flags);
333 snd_mtpav_output_port_write(port, substream);
334 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
335 }
336
337
338 /*
339 * mtpav control
340 */
341
342 static void snd_mtpav_portscan(mtpav_t *chip) // put mtp into smart routing mode
343 {
344 u8 p;
345
346 for (p = 0; p < 8; p++) {
347 snd_mtpav_send_byte(chip, 0xf5);
348 snd_mtpav_send_byte(chip, p);
349 snd_mtpav_send_byte(chip, 0xfe);
350 }
351 }
352
353 /*
354 */
355
356 static int snd_mtpav_input_open(snd_rawmidi_substream_t * substream)
357 {
358 unsigned long flags;
359 mtpav_port_t *portp = &mtp_card->ports[substream->number];
360
361 //printk("mtpav port: %d opened\n", (int) substream->number);
362 spin_lock_irqsave(&mtp_card->spinlock, flags);
363 portp->mode |= MTPAV_MODE_INPUT_OPENED;
364 portp->input = substream;
365 if (mtp_card->share_irq++ == 0)
366 snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts
367 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
368 return 0;
369 }
370
371 /*
372 */
373
374 static int snd_mtpav_input_close(snd_rawmidi_substream_t *substream)
375 {
376 unsigned long flags;
377 mtpav_port_t *portp = &mtp_card->ports[substream->number];
378
379 //printk("mtpav port: %d closed\n", (int) portp);
380
381 spin_lock_irqsave(&mtp_card->spinlock, flags);
382
383 portp->mode &= (~MTPAV_MODE_INPUT_OPENED);
384 portp->input = NULL;
385 if (--mtp_card->share_irq == 0)
386 snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts
387
388 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
389 return 0;
390 }
391
392 /*
393 */
394
395 static void snd_mtpav_input_trigger(snd_rawmidi_substream_t * substream, int up)
396 {
397 unsigned long flags;
398 mtpav_port_t *portp = &mtp_card->ports[substream->number];
399
400 spin_lock_irqsave(&mtp_card->spinlock, flags);
401 if (up)
402 portp->mode |= MTPAV_MODE_INPUT_TRIGGERED;
403 else
404 portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED;
405 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
406
407 }
408
409
410 /*
411 * timer interrupt for outputs
412 */
413
414 static void snd_mtpav_output_timer(unsigned long data)
415 {
416 unsigned long flags;
417 mtpav_t *chip = (mtpav_t *)data;
418 int p;
419
420 spin_lock_irqsave(&chip->spinlock, flags);
421 /* reprogram timer */
422 chip->timer.expires = 1 + jiffies;
423 add_timer(&chip->timer);
424 /* process each port */
425 for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) {
426 mtpav_port_t *portp = &mtp_card->ports[p];
427 if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output)
428 snd_mtpav_output_port_write(portp, portp->output);
429 }
430 spin_unlock_irqrestore(&chip->spinlock, flags);
431 }
432
433 /* spinlock held! */
434 static void snd_mtpav_add_output_timer(mtpav_t *chip)
435 {
436 init_timer(&chip->timer);
437 chip->timer.function = snd_mtpav_output_timer;
438 chip->timer.data = (unsigned long) mtp_card;
439 chip->timer.expires = 1 + jiffies;
440 add_timer(&chip->timer);
441 }
442
443 /* spinlock held! */
444 static void snd_mtpav_remove_output_timer(mtpav_t *chip)
445 {
446 del_timer(&chip->timer);
447 }
448
449 /*
450 */
451
452 static int snd_mtpav_output_open(snd_rawmidi_substream_t * substream)
453 {
454 unsigned long flags;
455 mtpav_port_t *portp = &mtp_card->ports[substream->number];
456
457 spin_lock_irqsave(&mtp_card->spinlock, flags);
458 portp->mode |= MTPAV_MODE_OUTPUT_OPENED;
459 portp->output = substream;
460 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
461 return 0;
462 };
463
464 /*
465 */
466
467 static int snd_mtpav_output_close(snd_rawmidi_substream_t * substream)
468 {
469 unsigned long flags;
470 mtpav_port_t *portp = &mtp_card->ports[substream->number];
471
472 spin_lock_irqsave(&mtp_card->spinlock, flags);
473 portp->mode &= (~MTPAV_MODE_OUTPUT_OPENED);
474 portp->output = NULL;
475 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
476 return 0;
477 };
478
479 /*
480 */
481
482 static void snd_mtpav_output_trigger(snd_rawmidi_substream_t * substream, int up)
483 {
484 unsigned long flags;
485 mtpav_port_t *portp = &mtp_card->ports[substream->number];
486
487 spin_lock_irqsave(&mtp_card->spinlock, flags);
488 if (up) {
489 if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) {
490 if (mtp_card->istimer++ == 0)
491 snd_mtpav_add_output_timer(mtp_card);
492 portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED;
493 }
494 } else {
495 portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED;
496 if (--mtp_card->istimer == 0)
497 snd_mtpav_remove_output_timer(mtp_card);
498 }
499 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
500
501 if (up)
502 snd_mtpav_output_write(substream);
503 }
504
505 /*
506 * midi interrupt for inputs
507 */
508
509 static void snd_mtpav_inmidi_process(mtpav_t *mcrd, u8 inbyte)
510 {
511 mtpav_port_t *portp;
512
513 if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST)
514 return;
515
516 portp = &mcrd->ports[mcrd->inmidiport];
517 if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) {
518 snd_rawmidi_receive(portp->input, &inbyte, 1);
519 }
520 }
521
522 static void snd_mtpav_inmidi_h(mtpav_t * mcrd, u8 inbyte)
523 {
524 snd_assert(mcrd, return);
525
526 if (inbyte >= 0xf8) {
527 /* real-time midi code */
528 snd_mtpav_inmidi_process(mcrd, inbyte);
529 return;
530 }
531
532 if (mcrd->inmidistate == 0) { // awaiting command
533 if (inbyte == 0xf5) // MTP port #
534 mcrd->inmidistate = 1;
535 else
536 snd_mtpav_inmidi_process(mcrd, inbyte);
537 } else if (mcrd->inmidistate) {
538 mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte);
539 mcrd->inmidistate = 0;
540 }
541 }
542
543 static void snd_mtpav_read_bytes(mtpav_t * mcrd)
544 {
545 u8 clrread, setread;
546 u8 mtp_read_byte;
547 u8 sr, cbyt;
548 int i;
549
550 u8 sbyt = snd_mtpav_getreg(mcrd, SREG);
551
552 //printk("snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt);
553
554 if (!(sbyt & SIGS_BYTE))
555 return;
556
557 cbyt = snd_mtpav_getreg(mcrd, CREG);
558 clrread = cbyt & (SIGC_READ ^ 0xff);
559 setread = cbyt | SIGC_READ;
560
561 do {
562
563 mtp_read_byte = 0;
564 for (i = 0; i < 4; i++) {
565 snd_mtpav_mputreg(mcrd, CREG, setread);
566 sr = snd_mtpav_getreg(mcrd, SREG);
567 snd_mtpav_mputreg(mcrd, CREG, clrread);
568
569 sr &= SIGS_IN0 | SIGS_IN1;
570 sr >>= 4;
571 mtp_read_byte |= sr << (i * 2);
572 }
573
574 snd_mtpav_inmidi_h(mcrd, mtp_read_byte);
575
576 sbyt = snd_mtpav_getreg(mcrd, SREG);
577
578 } while (sbyt & SIGS_BYTE);
579 }
580
581 static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id, struct pt_regs *regs)
582 {
583 mtpav_t *mcard = dev_id;
584
585 //printk("irqh()\n");
586 spin_lock(&mcard->spinlock);
587 snd_mtpav_read_bytes(mcard);
588 spin_unlock(&mcard->spinlock);
589 return IRQ_HANDLED;
590 }
591
592 /*
593 * get ISA resources
594 */
595 static int snd_mtpav_get_ISA(mtpav_t * mcard)
596 {
597 if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) {
598 snd_printk("MTVAP port 0x%lx is busy\n", port);
599 return -EBUSY;
600 }
601 mcard->port = port;
602 if (request_irq(irq, snd_mtpav_irqh, SA_INTERRUPT, "MOTU MTPAV", (void *)mcard)) {
603 snd_printk("MTVAP IRQ %d busy\n", irq);
604 return -EBUSY;
605 }
606 mcard->irq = irq;
607 return 0;
608 }
609
610
611 /*
612 */
613
614 static snd_rawmidi_ops_t snd_mtpav_output = {
615 .open = snd_mtpav_output_open,
616 .close = snd_mtpav_output_close,
617 .trigger = snd_mtpav_output_trigger,
618 };
619
620 static snd_rawmidi_ops_t snd_mtpav_input = {
621 .open = snd_mtpav_input_open,
622 .close = snd_mtpav_input_close,
623 .trigger = snd_mtpav_input_trigger,
624 };
625
626
627 /*
628 * get RAWMIDI resources
629 */
630
631 static void snd_mtpav_set_name(mtpav_t *chip, snd_rawmidi_substream_t *substream)
632 {
633 if (substream->number >= 0 && substream->number < chip->num_ports)
634 sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1);
635 else if (substream->number >= 8 && substream->number < chip->num_ports * 2)
636 sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1);
637 else if (substream->number == chip->num_ports * 2)
638 strcpy(substream->name, "MTP computer");
639 else if (substream->number == chip->num_ports * 2 + 1)
640 strcpy(substream->name, "MTP ADAT");
641 else
642 strcpy(substream->name, "MTP broadcast");
643 }
644
645 static int snd_mtpav_get_RAWMIDI(mtpav_t * mcard)
646 {
647 int rval = 0;
648 snd_rawmidi_t *rawmidi;
649 snd_rawmidi_substream_t *substream;
650 struct list_head *list;
651
652 //printk("entering snd_mtpav_get_RAWMIDI\n");
653
654 if (hwports < 1)
655 mcard->num_ports = 1;
656 else if (hwports > 8)
657 mcard->num_ports = 8;
658 else
659 mcard->num_ports = hwports;
660
661 if ((rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0,
662 mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1,
663 mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1,
664 &mcard->rmidi)) < 0)
665 return rval;
666 rawmidi = mcard->rmidi;
667
668 list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
669 substream = list_entry(list, snd_rawmidi_substream_t, list);
670 snd_mtpav_set_name(mcard, substream);
671 substream->ops = &snd_mtpav_input;
672 }
673 list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
674 substream = list_entry(list, snd_rawmidi_substream_t, list);
675 snd_mtpav_set_name(mcard, substream);
676 substream->ops = &snd_mtpav_output;
677 mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number);
678 }
679 rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT |
680 SNDRV_RAWMIDI_INFO_DUPLEX;
681 sprintf(rawmidi->name, "MTP AV MIDI");
682 //printk("exiting snd_mtpav_get_RAWMIDI() \n");
683 return 0;
684 }
685
686 /*
687 */
688
689 static mtpav_t *new_mtpav(void)
690 {
691 mtpav_t *ncrd = kcalloc(1, sizeof(*ncrd), GFP_KERNEL);
692 if (ncrd != NULL) {
693 spin_lock_init(&ncrd->spinlock);
694
695 init_timer(&ncrd->timer);
696 ncrd->card = NULL;
697 ncrd->irq = -1;
698 ncrd->share_irq = 0;
699
700 ncrd->inmidiport = 0xffffffff;
701 ncrd->inmidistate = 0;
702 ncrd->outmidihwport = 0xffffffff;
703 }
704 return ncrd;
705 }
706
707 /*
708 */
709
710 static void free_mtpav(mtpav_t * crd)
711 {
712 unsigned long flags;
713
714 spin_lock_irqsave(&crd->spinlock, flags);
715 if (crd->istimer > 0)
716 snd_mtpav_remove_output_timer(crd);
717 spin_unlock_irqrestore(&crd->spinlock, flags);
718 if (crd->irq >= 0)
719 free_irq(crd->irq, (void *)crd);
720 if (crd->res_port) {
721 release_resource(crd->res_port);
722 kfree_nocheck(crd->res_port);
723 }
724 kfree(crd);
725 }
726
727 /*
728 */
729
730 static int __init alsa_card_mtpav_init(void)
731 {
732 int err = 0;
733 char longname_buffer[80];
734
735 mtp_card = new_mtpav();
736 if (mtp_card == NULL)
737 return -ENOMEM;
738
739 mtp_card->card = snd_card_new(index, id, THIS_MODULE, 0);
740 if (mtp_card->card == NULL) {
741 free_mtpav(mtp_card);
742 return -ENOMEM;
743 }
744
745 err = snd_mtpav_get_ISA(mtp_card);
746 //printk("snd_mtpav_get_ISA returned: %d\n", err);
747 if (err < 0)
748 goto __error;
749
750 strcpy(mtp_card->card->driver, "MTPAV");
751 strcpy(mtp_card->card->shortname, "MTPAV on parallel port");
752 memset(longname_buffer, 0, sizeof(longname_buffer));
753 sprintf(longname_buffer, "MTPAV on parallel port at");
754
755 err = snd_mtpav_get_RAWMIDI(mtp_card);
756 //snd_printk("snd_mtapv_get_RAWMIDI returned: %d\n", err);
757 if (err < 0)
758 goto __error;
759
760 err = snd_card_register(mtp_card->card); // don't snd_card_register until AFTER all cards reources done!
761
762 //printk("snd_card_register returned %d\n", err);
763 if (err < 0)
764 goto __error;
765
766
767 snd_mtpav_portscan(mtp_card);
768
769 printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port);
770
771 return 0;
772
773 __error:
774 snd_card_free(mtp_card->card);
775 free_mtpav(mtp_card);
776 return err;
777 }
778
779 /*
780 */
781
782 static void __exit alsa_card_mtpav_exit(void)
783 {
784 if (mtp_card == NULL)
785 return;
786 if (mtp_card->card)
787 snd_card_free(mtp_card->card);
788 free_mtpav(mtp_card);
789 }
790
791 /*
792 */
793
794 module_init(alsa_card_mtpav_init)
795 module_exit(alsa_card_mtpav_exit)
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