source: GPL/branches/alsa-resync1/alsa-kernel/drivers/mtpav.c@ 224

Last change on this file since 224 was 224, checked in by Brendan Oakley, 18 years ago

Merged to Alsa 0.9.1
File size: 20.9 KB
Line 
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 <sound/core.h>
59#define SNDRV_GET_ID
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 */
69MODULE_AUTHOR("Michael T. Mayers");
70MODULE_DESCRIPTION("MOTU MidiTimePiece AV multiport MIDI");
71MODULE_LICENSE("GPL");
72MODULE_CLASSES("{sound}");
73MODULE_DEVICES("{{MOTU,MidiTimePiece AV multiport MIDI}}");
74
75// io resources
76#define MTPAV_IOBASE 0x378
77#define MTPAV_IRQ 7
78#define MTPAV_MAX_PORTS 8
79
80static int index = SNDRV_DEFAULT_IDX1;
81static char *id = SNDRV_DEFAULT_STR1;
82static long port = MTPAV_IOBASE; /* 0x378, 0x278 */
83static int irq = MTPAV_IRQ; /* 7, 5 */
84static int hwports = MTPAV_MAX_PORTS; /* use hardware ports 1-8 */
85
86MODULE_PARM(index, "i");
87MODULE_PARM_DESC(index, "Index value for MotuMTPAV MIDI.");
88MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
89MODULE_PARM(id, "s");
90MODULE_PARM_DESC(id, "ID string for MotuMTPAV MIDI.");
91MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
92MODULE_PARM(port, "l");
93MODULE_PARM_DESC(port, "Parallel port # for MotuMTPAV MIDI.");
94MODULE_PARM_SYNTAX(port, SNDRV_ENABLED ",allows:{{0x378},{0x278}},dialog:list");
95MODULE_PARM(irq, "i");
96MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI.");
97MODULE_PARM_SYNTAX(irq, SNDRV_ENABLED ",allows:{{7},{5}},dialog:list");
98MODULE_PARM(hwports, "i");
99MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI.");
100MODULE_PARM_SYNTAX(hwports, SNDRV_ENABLED ",allows:{{1,8}},dialog:list");
101
102/*
103 * defines
104 */
105//#define USE_FAKE_MTP // dont actually read/write to MTP device (for debugging without an actual unit) (does not work yet)
106
107// parallel port usage masks
108#define SIGS_BYTE 0x08
109#define SIGS_RFD 0x80
110#define SIGS_IRQ 0x40
111#define SIGS_IN0 0x10
112#define SIGS_IN1 0x20
113
114#define SIGC_WRITE 0x04
115#define SIGC_READ 0x08
116#define SIGC_INTEN 0x10
117
118#define DREG 0
119#define SREG 1
120#define CREG 2
121
122//
123#define MTPAV_MODE_INPUT_OPENED 0x01
124#define MTPAV_MODE_OUTPUT_OPENED 0x02
125#define MTPAV_MODE_INPUT_TRIGGERED 0x04
126#define MTPAV_MODE_OUTPUT_TRIGGERED 0x08
127
128#define NUMPORTS (0x12+1)
129
130
131/*
132 */
133
134typedef struct mtpav_port {
135 u8 number;
136 u8 hwport;
137 u8 mode;
138 u8 running_status;
139 snd_rawmidi_substream_t *input;
140 snd_rawmidi_substream_t *output;
141} mtpav_port_t;
142
143typedef struct mtpav {
144 snd_card_t *card;
145 unsigned long port;
146 struct resource *res_port;
147 int irq; /* interrupt (for inputs) */
148 spinlock_t spinlock;
149 int share_irq; /* number of accesses to input interrupts */
150 int istimer; /* number of accesses to timer interrupts */
151 struct timer_list timer; /* timer interrupts for outputs */
152 snd_rawmidi_t *rmidi;
153 int num_ports; /* number of hw ports (1-8) */
154 mtpav_port_t ports[NUMPORTS]; /* all ports including computer, adat and bc */
155
156 u32 inmidiport; /* selected input midi port */
157 u32 inmidistate; /* during midi command 0xf5 */
158
159 u32 outmidihwport; /* selected output midi hw port */
160} mtpav_t;
161
162
163/*
164 * global instance
165 * hey, we handle at most only one card..
166 */
167static mtpav_t *mtp_card;
168
169/*
170 * possible hardware ports (selected by 0xf5 port message)
171 * 0x00 all ports
172 * 0x01 .. 0x08 this MTP's ports 1..8
173 * 0x09 .. 0x10 networked MTP's ports (9..16)
174 * 0x11 networked MTP's computer port
175 * 0x63 to ADAT
176 *
177 * mappig:
178 * subdevice 0 - (X-1) ports
179 * X - (2*X-1) networked ports
180 * X computer
181 * X+1 ADAT
182 * X+2 all ports
183 *
184 * where X = chip->num_ports
185 */
186
187#define MTPAV_PIDX_COMPUTER 0
188#define MTPAV_PIDX_ADAT 1
189#define MTPAV_PIDX_BROADCAST 2
190
191
192static int translate_subdevice_to_hwport(mtpav_t *chip, int subdev)
193{
194 if (subdev < 0)
195 return 0x01; /* invalid - use port 0 as default */
196 else if (subdev < chip->num_ports)
197 return subdev + 1; /* single mtp port */
198 else if (subdev < chip->num_ports * 2)
199 return subdev - chip->num_ports + 0x09; /* remote port */
200 else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER)
201 return 0x11; /* computer port */
202 else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT)
203 return 0x63; /* ADAT */
204 return 0; /* all ports */
205}
206
207static int translate_hwport_to_subdevice(mtpav_t *chip, int hwport)
208{
209 int p;
210 if (hwport <= 0x00) /* all ports */
211 return chip->num_ports + MTPAV_PIDX_BROADCAST;
212 else if (hwport <= 0x08) { /* single port */
213 p = hwport - 1;
214 if (p >= chip->num_ports)
215 p = 0;
216 return p;
217 } else if (hwport <= 0x10) { /* remote port */
218 p = hwport - 0x09 + chip->num_ports;
219 if (p >= chip->num_ports * 2)
220 p = chip->num_ports;
221 return p;
222 } else if (hwport == 0x11) /* computer port */
223 return chip->num_ports + MTPAV_PIDX_COMPUTER;
224 else /* ADAT */
225 return chip->num_ports + MTPAV_PIDX_ADAT;
226}
227
228
229/*
230 */
231
232static u8 snd_mtpav_getreg(mtpav_t *chip, u16 reg)
233{
234 u8 rval = 0;
235
236 if (reg == SREG) {
237 rval = inb(chip->port + SREG);
238 rval = (rval & 0xf8);
239 } else if (reg == CREG) {
240 rval = inb(chip->port + CREG);
241 rval = (rval & 0x1c);
242 }
243
244 return rval;
245}
246
247/*
248 */
249
250static void snd_mtpav_mputreg(mtpav_t *chip, u16 reg, u8 val)
251{
252 if (reg == DREG) {
253 outb(val, chip->port + DREG);
254 } else if (reg == CREG) {
255 outb(val, chip->port + CREG);
256 }
257}
258
259/*
260 */
261
262static void snd_mtpav_wait_rfdhi(mtpav_t *chip)
263{
264 int counts = 10000;
265 u8 sbyte;
266
267 sbyte = snd_mtpav_getreg(chip, SREG);
268 while (!(sbyte & SIGS_RFD) && counts--) {
269 sbyte = snd_mtpav_getreg(chip, SREG);
270 udelay(10);
271 }
272}
273
274static void snd_mtpav_send_byte(mtpav_t *chip, u8 byte)
275{
276 u8 tcbyt;
277 u8 clrwrite;
278 u8 setwrite;
279
280 snd_mtpav_wait_rfdhi(chip);
281
282 /////////////////
283
284 tcbyt = snd_mtpav_getreg(chip, CREG);
285 clrwrite = tcbyt & (SIGC_WRITE ^ 0xff);
286 setwrite = tcbyt | SIGC_WRITE;
287
288 snd_mtpav_mputreg(chip, DREG, byte);
289 snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit
290
291 snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit
292
293}
294
295
296/*
297 */
298
299/* call this with spin lock held */
300static void snd_mtpav_output_port_write(mtpav_port_t *port,
301 snd_rawmidi_substream_t *substream)
302{
303 u8 outbyte;
304
305 // Get the outbyte first, so we can emulate running status if
306 // necessary
307 if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1)
308 return;
309
310 // send port change command if necessary
311
312 if (port->hwport != mtp_card->outmidihwport) {
313 mtp_card->outmidihwport = port->hwport;
314
315 snd_mtpav_send_byte(mtp_card, 0xf5);
316 snd_mtpav_send_byte(mtp_card, port->hwport);
317 //snd_printk("new outport: 0x%x\n", (unsigned int) port->hwport);
318
319 if (!(outbyte & 0x80) && port->running_status)
320 snd_mtpav_send_byte(mtp_card, port->running_status);
321 }
322
323 // send data
324
325 do {
326 if (outbyte & 0x80)
327 port->running_status = outbyte;
328
329 snd_mtpav_send_byte(mtp_card, outbyte);
330 } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1);
331}
332
333static void snd_mtpav_output_write(snd_rawmidi_substream_t * substream)
334{
335 mtpav_port_t *port = &mtp_card->ports[substream->number];
336 unsigned long flags;
337
338 spin_lock_irqsave(&mtp_card->spinlock, flags);
339 snd_mtpav_output_port_write(port, substream);
340 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
341}
342
343
344/*
345 * mtpav control
346 */
347
348static void snd_mtpav_portscan(mtpav_t *chip) // put mtp into smart routing mode
349{
350 u8 p;
351
352 for (p = 0; p < 8; p++) {
353 snd_mtpav_send_byte(chip, 0xf5);
354 snd_mtpav_send_byte(chip, p);
355 snd_mtpav_send_byte(chip, 0xfe);
356 }
357}
358
359/*
360 */
361
362static int snd_mtpav_input_open(snd_rawmidi_substream_t * substream)
363{
364 unsigned long flags;
365 mtpav_port_t *portp = &mtp_card->ports[substream->number];
366
367 //printk("mtpav port: %d opened\n", (int) substream->number);
368 spin_lock_irqsave(&mtp_card->spinlock, flags);
369 portp->mode |= MTPAV_MODE_INPUT_OPENED;
370 portp->input = substream;
371 if (mtp_card->share_irq++ == 0)
372 snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts
373 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
374 return 0;
375}
376
377/*
378 */
379
380static int snd_mtpav_input_close(snd_rawmidi_substream_t *substream)
381{
382 unsigned long flags;
383 mtpav_port_t *portp = &mtp_card->ports[substream->number];
384
385 //printk("mtpav port: %d closed\n", (int) portp);
386
387 spin_lock_irqsave(&mtp_card->spinlock, flags);
388
389 portp->mode &= (~MTPAV_MODE_INPUT_OPENED);
390 portp->input = NULL;
391 if (--mtp_card->share_irq == 0)
392 snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts
393
394 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
395 return 0;
396}
397
398/*
399 */
400
401static void snd_mtpav_input_trigger(snd_rawmidi_substream_t * substream, int up)
402{
403 unsigned long flags;
404 mtpav_port_t *portp = &mtp_card->ports[substream->number];
405
406 spin_lock_irqsave(&mtp_card->spinlock, flags);
407 if (up)
408 portp->mode |= MTPAV_MODE_INPUT_TRIGGERED;
409 else
410 portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED;
411 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
412
413}
414
415
416/*
417 * timer interrupt for outputs
418 */
419
420static void snd_mtpav_output_timer(unsigned long data)
421{
422 mtpav_t *chip = snd_magic_cast(mtpav_t, (void *)data, return);
423 int p;
424
425 spin_lock(&chip->spinlock);
426 /* reprogram timer */
427 chip->timer.expires = 1 + jiffies;
428 add_timer(&chip->timer);
429 /* process each port */
430 for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) {
431 mtpav_port_t *portp = &mtp_card->ports[p];
432 if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output)
433 snd_mtpav_output_port_write(portp, portp->output);
434 }
435 spin_unlock(&chip->spinlock);
436}
437
438/* spinlock held! */
439static void snd_mtpav_add_output_timer(mtpav_t *chip)
440{
441 init_timer(&chip->timer);
442 chip->timer.function = snd_mtpav_output_timer;
443 chip->timer.data = (unsigned long) mtp_card;
444 chip->timer.expires = 1 + jiffies;
445 add_timer(&chip->timer);
446}
447
448/* spinlock held! */
449static void snd_mtpav_remove_output_timer(mtpav_t *chip)
450{
451 del_timer(&chip->timer);
452}
453
454/*
455 */
456
457static int snd_mtpav_output_open(snd_rawmidi_substream_t * substream)
458{
459 unsigned long flags;
460 mtpav_port_t *portp = &mtp_card->ports[substream->number];
461
462 spin_lock_irqsave(&mtp_card->spinlock, flags);
463 portp->mode |= MTPAV_MODE_OUTPUT_OPENED;
464 portp->output = substream;
465 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
466 return 0;
467};
468
469/*
470 */
471
472static int snd_mtpav_output_close(snd_rawmidi_substream_t * substream)
473{
474 unsigned long flags;
475 mtpav_port_t *portp = &mtp_card->ports[substream->number];
476
477 spin_lock_irqsave(&mtp_card->spinlock, flags);
478 portp->mode &= (~MTPAV_MODE_OUTPUT_OPENED);
479 portp->output = NULL;
480 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
481 return 0;
482};
483
484/*
485 */
486
487static void snd_mtpav_output_trigger(snd_rawmidi_substream_t * substream, int up)
488{
489 unsigned long flags;
490 mtpav_port_t *portp = &mtp_card->ports[substream->number];
491
492 spin_lock_irqsave(&mtp_card->spinlock, flags);
493 if (up) {
494 if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) {
495 if (mtp_card->istimer++ == 0)
496 snd_mtpav_add_output_timer(mtp_card);
497 portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED;
498 }
499 } else {
500 portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED;
501 if (--mtp_card->istimer == 0)
502 snd_mtpav_remove_output_timer(mtp_card);
503 }
504 spin_unlock_irqrestore(&mtp_card->spinlock, flags);
505
506 if (up)
507 snd_mtpav_output_write(substream);
508}
509
510/*
511 * midi interrupt for inputs
512 */
513
514static void snd_mtpav_inmidi_process(mtpav_t *mcrd, u8 inbyte)
515{
516 mtpav_port_t *portp;
517
518 if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST)
519 return;
520
521 portp = &mcrd->ports[mcrd->inmidiport];
522 if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) {
523 spin_unlock(&mcrd->spinlock);
524 snd_rawmidi_receive(portp->input, &inbyte, 1);
525 spin_lock(&mcrd->spinlock);
526 }
527}
528
529static void snd_mtpav_inmidi_h(mtpav_t * mcrd, u8 inbyte)
530{
531#ifndef TARGET_OS2
532 snd_assert(mcrd, return);
533#endif
534 if (inbyte >= 0xf8) {
535 /* real-time midi code */
536 snd_mtpav_inmidi_process(mcrd, inbyte);
537 return;
538 }
539
540 if (mcrd->inmidistate == 0) { // awaiting command
541 if (inbyte == 0xf5) // MTP port #
542 mcrd->inmidistate = 1;
543 else
544 snd_mtpav_inmidi_process(mcrd, inbyte);
545 } else if (mcrd->inmidistate) {
546 mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte);
547 mcrd->inmidistate = 0;
548 }
549}
550
551static void snd_mtpav_read_bytes(mtpav_t * mcrd)
552{
553 u8 clrread, setread;
554 u8 mtp_read_byte;
555 u8 sr, cbyt;
556 int i;
557
558 u8 sbyt = snd_mtpav_getreg(mcrd, SREG);
559
560 //printk("snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt);
561
562 if (!(sbyt & SIGS_BYTE))
563 return;
564
565 cbyt = snd_mtpav_getreg(mcrd, CREG);
566 clrread = cbyt & (SIGC_READ ^ 0xff);
567 setread = cbyt | SIGC_READ;
568
569 do {
570
571 mtp_read_byte = 0;
572 for (i = 0; i < 4; i++) {
573 snd_mtpav_mputreg(mcrd, CREG, setread);
574 sr = snd_mtpav_getreg(mcrd, SREG);
575 snd_mtpav_mputreg(mcrd, CREG, clrread);
576
577 sr &= SIGS_IN0 | SIGS_IN1;
578 sr >>= 4;
579 mtp_read_byte |= sr << (i * 2);
580 }
581
582 snd_mtpav_inmidi_h(mcrd, mtp_read_byte);
583
584 sbyt = snd_mtpav_getreg(mcrd, SREG);
585
586 } while (sbyt & SIGS_BYTE);
587}
588
589static void snd_mtpav_irqh(int irq, void *dev_id, struct pt_regs *regs)
590{
591 mtpav_t *mcard = snd_magic_cast(mtpav_t, dev_id, return);
592
593 //printk("irqh()\n");
594 spin_lock(&mcard->spinlock);
595 snd_mtpav_read_bytes(mcard);
596 spin_unlock(&mcard->spinlock);
597}
598
599/*
600 * get ISA resources
601 */
602static int snd_mtpav_get_ISA(mtpav_t * mcard)
603{
604 if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) {
605 snd_printk("MTVAP port 0x%lx is busy\n", port);
606 return -EBUSY;
607 }
608 mcard->port = port;
609 if (request_irq(irq, snd_mtpav_irqh, SA_INTERRUPT, "MOTU MTPAV", (void *)mcard)) {
610 snd_printk("MTVAP IRQ %d busy\n", irq);
611 return -EBUSY;
612 }
613 mcard->irq = irq;
614 return 0;
615}
616
617
618/*
619 */
620
621static snd_rawmidi_ops_t snd_mtpav_output = {
622 .open = snd_mtpav_output_open,
623 .close = snd_mtpav_output_close,
624 .trigger = snd_mtpav_output_trigger,
625};
626
627static snd_rawmidi_ops_t snd_mtpav_input = {
628 .open = snd_mtpav_input_open,
629 .close = snd_mtpav_input_close,
630 .trigger = snd_mtpav_input_trigger,
631};
632
633
634/*
635 * get RAWMIDI resources
636 */
637
638static void snd_mtpav_set_name(mtpav_t *chip, snd_rawmidi_substream_t *substream)
639{
640 if (substream->number >= 0 && substream->number < chip->num_ports)
641 sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1);
642 else if (substream->number >= 8 && substream->number < chip->num_ports * 2)
643 sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1);
644 else if (substream->number == chip->num_ports * 2)
645 strcpy(substream->name, "MTP computer");
646 else if (substream->number == chip->num_ports * 2 + 1)
647 strcpy(substream->name, "MTP ADAT");
648 else
649 strcpy(substream->name, "MTP broadcast");
650}
651
652static int snd_mtpav_get_RAWMIDI(mtpav_t * mcard)
653{
654 int rval = 0;
655 snd_rawmidi_t *rawmidi;
656 snd_rawmidi_substream_t *substream;
657 struct list_head *list;
658
659 //printk("entering snd_mtpav_get_RAWMIDI\n");
660
661 if (hwports < 1)
662 mcard->num_ports = 1;
663 else if (hwports > 8)
664 mcard->num_ports = 8;
665 else
666 mcard->num_ports = hwports;
667
668 if ((rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0,
669 mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1,
670 mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1,
671 &mcard->rmidi)) < 0)
672 return rval;
673 rawmidi = mcard->rmidi;
674
675 list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
676 substream = list_entry(list, snd_rawmidi_substream_t, list);
677 snd_mtpav_set_name(mcard, substream);
678 substream->ops = &snd_mtpav_input;
679 }
680 list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
681 substream = list_entry(list, snd_rawmidi_substream_t, list);
682 snd_mtpav_set_name(mcard, substream);
683 substream->ops = &snd_mtpav_output;
684 mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number);
685 }
686 rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT |
687 SNDRV_RAWMIDI_INFO_DUPLEX;
688 sprintf(rawmidi->name, "MTP AV MIDI");
689 //printk("exiting snd_mtpav_get_RAWMIDI() \n");
690 return 0;
691}
692
693/*
694 */
695
696static mtpav_t *new_mtpav(void)
697{
698 mtpav_t *ncrd = (mtpav_t *) snd_magic_kcalloc(mtpav_t, 0, GFP_KERNEL);
699 if (ncrd != NULL) {
700 spin_lock_init(&ncrd->spinlock);
701
702 init_timer(&ncrd->timer);
703 ncrd->card = NULL;
704 ncrd->irq = -1;
705 ncrd->share_irq = 0;
706
707 ncrd->inmidiport = 0xffffffff;
708 ncrd->inmidistate = 0;
709 ncrd->outmidihwport = 0xffffffff;
710 }
711 return ncrd;
712}
713
714/*
715 */
716
717static void free_mtpav(mtpav_t * crd)
718{
719 unsigned long flags;
720
721 spin_lock_irqsave(&crd->spinlock, flags);
722 if (crd->istimer > 0)
723 snd_mtpav_remove_output_timer(crd);
724 spin_unlock_irqrestore(&crd->spinlock, flags);
725 if (crd->irq >= 0)
726 free_irq(crd->irq, (void *)crd);
727 if (crd->res_port) {
728 release_resource(crd->res_port);
729 kfree_nocheck(crd->res_port);
730 }
731 snd_magic_kfree(crd);
732}
733
734/*
735 */
736
737static int __init alsa_card_mtpav_init(void)
738{
739 int err = 0;
740 char longname_buffer[80];
741
742 mtp_card = new_mtpav();
743 if (mtp_card == NULL)
744 return -ENOMEM;
745
746 mtp_card->card = snd_card_new(index, id, THIS_MODULE, 0);
747 if (mtp_card->card == NULL) {
748 free_mtpav(mtp_card);
749 return -ENOMEM;
750 }
751
752 err = snd_mtpav_get_ISA(mtp_card);
753 //printk("snd_mtpav_get_ISA returned: %d\n", err);
754 if (err < 0)
755 goto __error;
756
757 strcpy(mtp_card->card->driver, "MTPAV");
758 strcpy(mtp_card->card->shortname, "MTPAV on parallel port");
759 memset(longname_buffer, 0, sizeof(longname_buffer));
760 sprintf(longname_buffer, "MTPAV on parallel port at");
761
762 err = snd_mtpav_get_RAWMIDI(mtp_card);
763 //snd_printk("snd_mtapv_get_RAWMIDI returned: %d\n", err);
764 if (err < 0)
765 goto __error;
766
767 err = snd_card_register(mtp_card->card); // dont snd_card_register until AFTER all cards reources done!
768
769 //printk("snd_card_register returned %d\n", err);
770 if (err < 0)
771 goto __error;
772
773
774 snd_mtpav_portscan(mtp_card);
775
776 printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port);
777
778 return 0;
779
780 __error:
781 snd_card_free(mtp_card->card);
782 free_mtpav(mtp_card);
783 return err;
784}
785
786/*
787 */
788
789static void __exit alsa_card_mtpav_exit(void)
790{
791 if (mtp_card == NULL)
792 return;
793 if (mtp_card->card)
794 snd_card_free(mtp_card->card);
795 free_mtpav(mtp_card);
796}
797
798/*
799 */
800
801module_init(alsa_card_mtpav_init)
802module_exit(alsa_card_mtpav_exit)
803
804#ifndef MODULE
805
806/* format is: snd-mtpav=enable,index,id,
807 port,irq,hwports */
808
809static int __init alsa_card_mtpav_setup(char *str)
810{
811 int __attribute__ ((__unused__)) enable = 1;
812
813 (void)(get_option(&str,&enable) == 2 &&
814 get_option(&str,&index) == 2 &&
815 get_id(&str,&id) == 2 &&
816 get_option(&str,(int *)&port) == 2 &&
817 get_option(&str,&irq) == 2 &&
818 get_option(&str,&hwports) == 2);
819 return 1;
820}
821
822__setup("snd-mtpav=", alsa_card_mtpav_setup);
823
824#endif /* ifndef MODULE */
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