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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/err.h> |
56 | #include <linux/platform_device.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 | 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 __devinit 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, IRQF_DISABLED, "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 __devinit 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 __devinit 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 __devinit 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 __devexit 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 = __devexit_p(snd_mtpav_remove), |
761 | .driver = { |
762 | .name = SND_MTPAV_DRIVER |
763 | }, |
764 | }; |
765 | |
766 | static int __init alsa_card_mtpav_init(void) |
767 | { |
768 | int err; |
769 | |
770 | if ((err = platform_driver_register(&snd_mtpav_driver)) < 0) |
771 | return err; |
772 | |
773 | device = platform_device_register_simple(SND_MTPAV_DRIVER, -1, NULL, 0); |
774 | if (!IS_ERR(device)) { |
775 | if (platform_get_drvdata(device)) |
776 | return 0; |
777 | platform_device_unregister(device); |
778 | err = -ENODEV; |
779 | } else |
780 | err = PTR_ERR(device); |
781 | platform_driver_unregister(&snd_mtpav_driver); |
782 | return err; |
783 | } |
784 | |
785 | static void __exit alsa_card_mtpav_exit(void) |
786 | { |
787 | platform_device_unregister(device); |
788 | platform_driver_unregister(&snd_mtpav_driver); |
789 | } |
790 | |
791 | module_init(alsa_card_mtpav_init) |
792 | module_exit(alsa_card_mtpav_exit) |
793 |
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