Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * MOTU Midi Timepiece ALSA Main routines | |
4 | * Copyright by Michael T. Mayers (c) Jan 09, 2000 | |
5 | * mail: michael@tweakoz.com | |
6 | * Thanks to John Galbraith | |
7 | * | |
1da177e4 LT |
8 | * This driver is for the 'Mark Of The Unicorn' (MOTU) |
9 | * MidiTimePiece AV multiport MIDI interface | |
10 | * | |
11 | * IOPORTS | |
12 | * ------- | |
13 | * 8 MIDI Ins and 8 MIDI outs | |
14 | * Video Sync In (BNC), Word Sync Out (BNC), | |
15 | * ADAT Sync Out (DB9) | |
16 | * SMPTE in/out (1/4") | |
17 | * 2 programmable pedal/footswitch inputs and 4 programmable MIDI controller knobs. | |
18 | * Macintosh RS422 serial port | |
19 | * RS422 "network" port for ganging multiple MTP's | |
20 | * PC Parallel Port ( which this driver currently uses ) | |
21 | * | |
22 | * MISC FEATURES | |
23 | * ------------- | |
24 | * Hardware MIDI routing, merging, and filtering | |
25 | * MIDI Synchronization to Video, ADAT, SMPTE and other Clock sources | |
26 | * 128 'scene' memories, recallable from MIDI program change | |
27 | * | |
1da177e4 LT |
28 | * ChangeLog |
29 | * Jun 11 2001 Takashi Iwai <tiwai@suse.de> | |
30 | * - Recoded & debugged | |
31 | * - Added timer interrupt for midi outputs | |
32 | * - hwports is between 1 and 8, which specifies the number of hardware ports. | |
33 | * The three global ports, computer, adat and broadcast ports, are created | |
34 | * always after h/w and remote ports. | |
1da177e4 LT |
35 | */ |
36 | ||
1da177e4 LT |
37 | #include <linux/init.h> |
38 | #include <linux/interrupt.h> | |
da155d5b | 39 | #include <linux/module.h> |
077d0ac5 TI |
40 | #include <linux/err.h> |
41 | #include <linux/platform_device.h> | |
1da177e4 | 42 | #include <linux/ioport.h> |
ddfb3199 | 43 | #include <linux/io.h> |
1da177e4 LT |
44 | #include <linux/moduleparam.h> |
45 | #include <sound/core.h> | |
46 | #include <sound/initval.h> | |
47 | #include <sound/rawmidi.h> | |
48 | #include <linux/delay.h> | |
49 | ||
1da177e4 LT |
50 | /* |
51 | * globals | |
52 | */ | |
53 | MODULE_AUTHOR("Michael T. Mayers"); | |
54 | MODULE_DESCRIPTION("MOTU MidiTimePiece AV multiport MIDI"); | |
55 | MODULE_LICENSE("GPL"); | |
1da177e4 LT |
56 | |
57 | // io resources | |
58 | #define MTPAV_IOBASE 0x378 | |
59 | #define MTPAV_IRQ 7 | |
60 | #define MTPAV_MAX_PORTS 8 | |
61 | ||
62 | static int index = SNDRV_DEFAULT_IDX1; | |
63 | static char *id = SNDRV_DEFAULT_STR1; | |
64 | static long port = MTPAV_IOBASE; /* 0x378, 0x278 */ | |
65 | static int irq = MTPAV_IRQ; /* 7, 5 */ | |
66 | static int hwports = MTPAV_MAX_PORTS; /* use hardware ports 1-8 */ | |
67 | ||
68 | module_param(index, int, 0444); | |
69 | MODULE_PARM_DESC(index, "Index value for MotuMTPAV MIDI."); | |
70 | module_param(id, charp, 0444); | |
71 | MODULE_PARM_DESC(id, "ID string for MotuMTPAV MIDI."); | |
b11ce420 | 72 | module_param_hw(port, long, ioport, 0444); |
1da177e4 | 73 | MODULE_PARM_DESC(port, "Parallel port # for MotuMTPAV MIDI."); |
b11ce420 | 74 | module_param_hw(irq, int, irq, 0444); |
1da177e4 LT |
75 | MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI."); |
76 | module_param(hwports, int, 0444); | |
77 | MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI."); | |
78 | ||
f7a9275d CL |
79 | static struct platform_device *device; |
80 | ||
1da177e4 LT |
81 | /* |
82 | * defines | |
83 | */ | |
84 | //#define USE_FAKE_MTP // don't actually read/write to MTP device (for debugging without an actual unit) (does not work yet) | |
85 | ||
86 | // parallel port usage masks | |
87 | #define SIGS_BYTE 0x08 | |
88 | #define SIGS_RFD 0x80 | |
89 | #define SIGS_IRQ 0x40 | |
90 | #define SIGS_IN0 0x10 | |
91 | #define SIGS_IN1 0x20 | |
92 | ||
93 | #define SIGC_WRITE 0x04 | |
94 | #define SIGC_READ 0x08 | |
95 | #define SIGC_INTEN 0x10 | |
96 | ||
97 | #define DREG 0 | |
98 | #define SREG 1 | |
99 | #define CREG 2 | |
100 | ||
101 | // | |
102 | #define MTPAV_MODE_INPUT_OPENED 0x01 | |
103 | #define MTPAV_MODE_OUTPUT_OPENED 0x02 | |
104 | #define MTPAV_MODE_INPUT_TRIGGERED 0x04 | |
105 | #define MTPAV_MODE_OUTPUT_TRIGGERED 0x08 | |
106 | ||
107 | #define NUMPORTS (0x12+1) | |
108 | ||
109 | ||
110 | /* | |
111 | */ | |
112 | ||
077d0ac5 | 113 | struct mtpav_port { |
1da177e4 LT |
114 | u8 number; |
115 | u8 hwport; | |
116 | u8 mode; | |
117 | u8 running_status; | |
4a4d2cfd TI |
118 | struct snd_rawmidi_substream *input; |
119 | struct snd_rawmidi_substream *output; | |
077d0ac5 | 120 | }; |
1da177e4 | 121 | |
077d0ac5 | 122 | struct mtpav { |
4a4d2cfd | 123 | struct snd_card *card; |
1da177e4 LT |
124 | unsigned long port; |
125 | struct resource *res_port; | |
126 | int irq; /* interrupt (for inputs) */ | |
127 | spinlock_t spinlock; | |
128 | int share_irq; /* number of accesses to input interrupts */ | |
129 | int istimer; /* number of accesses to timer interrupts */ | |
130 | struct timer_list timer; /* timer interrupts for outputs */ | |
4a4d2cfd | 131 | struct snd_rawmidi *rmidi; |
1da177e4 | 132 | int num_ports; /* number of hw ports (1-8) */ |
077d0ac5 | 133 | struct mtpav_port ports[NUMPORTS]; /* all ports including computer, adat and bc */ |
1da177e4 LT |
134 | |
135 | u32 inmidiport; /* selected input midi port */ | |
136 | u32 inmidistate; /* during midi command 0xf5 */ | |
137 | ||
138 | u32 outmidihwport; /* selected output midi hw port */ | |
077d0ac5 | 139 | }; |
1da177e4 LT |
140 | |
141 | ||
1da177e4 LT |
142 | /* |
143 | * possible hardware ports (selected by 0xf5 port message) | |
144 | * 0x00 all ports | |
145 | * 0x01 .. 0x08 this MTP's ports 1..8 | |
146 | * 0x09 .. 0x10 networked MTP's ports (9..16) | |
147 | * 0x11 networked MTP's computer port | |
148 | * 0x63 to ADAT | |
149 | * | |
150 | * mappig: | |
151 | * subdevice 0 - (X-1) ports | |
152 | * X - (2*X-1) networked ports | |
153 | * X computer | |
154 | * X+1 ADAT | |
155 | * X+2 all ports | |
156 | * | |
157 | * where X = chip->num_ports | |
158 | */ | |
159 | ||
160 | #define MTPAV_PIDX_COMPUTER 0 | |
161 | #define MTPAV_PIDX_ADAT 1 | |
162 | #define MTPAV_PIDX_BROADCAST 2 | |
163 | ||
164 | ||
077d0ac5 | 165 | static int translate_subdevice_to_hwport(struct mtpav *chip, int subdev) |
1da177e4 LT |
166 | { |
167 | if (subdev < 0) | |
168 | return 0x01; /* invalid - use port 0 as default */ | |
169 | else if (subdev < chip->num_ports) | |
170 | return subdev + 1; /* single mtp port */ | |
171 | else if (subdev < chip->num_ports * 2) | |
172 | return subdev - chip->num_ports + 0x09; /* remote port */ | |
173 | else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER) | |
174 | return 0x11; /* computer port */ | |
175 | else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT) | |
176 | return 0x63; /* ADAT */ | |
177 | return 0; /* all ports */ | |
178 | } | |
179 | ||
077d0ac5 | 180 | static int translate_hwport_to_subdevice(struct mtpav *chip, int hwport) |
1da177e4 LT |
181 | { |
182 | int p; | |
183 | if (hwport <= 0x00) /* all ports */ | |
184 | return chip->num_ports + MTPAV_PIDX_BROADCAST; | |
185 | else if (hwport <= 0x08) { /* single port */ | |
186 | p = hwport - 1; | |
187 | if (p >= chip->num_ports) | |
188 | p = 0; | |
189 | return p; | |
190 | } else if (hwport <= 0x10) { /* remote port */ | |
191 | p = hwport - 0x09 + chip->num_ports; | |
192 | if (p >= chip->num_ports * 2) | |
193 | p = chip->num_ports; | |
194 | return p; | |
195 | } else if (hwport == 0x11) /* computer port */ | |
196 | return chip->num_ports + MTPAV_PIDX_COMPUTER; | |
197 | else /* ADAT */ | |
198 | return chip->num_ports + MTPAV_PIDX_ADAT; | |
199 | } | |
200 | ||
201 | ||
202 | /* | |
203 | */ | |
204 | ||
077d0ac5 | 205 | static u8 snd_mtpav_getreg(struct mtpav *chip, u16 reg) |
1da177e4 LT |
206 | { |
207 | u8 rval = 0; | |
208 | ||
209 | if (reg == SREG) { | |
210 | rval = inb(chip->port + SREG); | |
211 | rval = (rval & 0xf8); | |
212 | } else if (reg == CREG) { | |
213 | rval = inb(chip->port + CREG); | |
214 | rval = (rval & 0x1c); | |
215 | } | |
216 | ||
217 | return rval; | |
218 | } | |
219 | ||
220 | /* | |
221 | */ | |
222 | ||
077d0ac5 | 223 | static inline void snd_mtpav_mputreg(struct mtpav *chip, u16 reg, u8 val) |
1da177e4 | 224 | { |
077d0ac5 TI |
225 | if (reg == DREG || reg == CREG) |
226 | outb(val, chip->port + reg); | |
1da177e4 LT |
227 | } |
228 | ||
229 | /* | |
230 | */ | |
231 | ||
077d0ac5 | 232 | static void snd_mtpav_wait_rfdhi(struct mtpav *chip) |
1da177e4 LT |
233 | { |
234 | int counts = 10000; | |
235 | u8 sbyte; | |
236 | ||
237 | sbyte = snd_mtpav_getreg(chip, SREG); | |
238 | while (!(sbyte & SIGS_RFD) && counts--) { | |
239 | sbyte = snd_mtpav_getreg(chip, SREG); | |
240 | udelay(10); | |
241 | } | |
242 | } | |
243 | ||
077d0ac5 | 244 | static void snd_mtpav_send_byte(struct mtpav *chip, u8 byte) |
1da177e4 LT |
245 | { |
246 | u8 tcbyt; | |
247 | u8 clrwrite; | |
248 | u8 setwrite; | |
249 | ||
250 | snd_mtpav_wait_rfdhi(chip); | |
251 | ||
252 | ///////////////// | |
253 | ||
254 | tcbyt = snd_mtpav_getreg(chip, CREG); | |
255 | clrwrite = tcbyt & (SIGC_WRITE ^ 0xff); | |
256 | setwrite = tcbyt | SIGC_WRITE; | |
257 | ||
258 | snd_mtpav_mputreg(chip, DREG, byte); | |
259 | snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit | |
260 | ||
261 | snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit | |
262 | ||
263 | } | |
264 | ||
265 | ||
266 | /* | |
267 | */ | |
268 | ||
269 | /* call this with spin lock held */ | |
077d0ac5 TI |
270 | static void snd_mtpav_output_port_write(struct mtpav *mtp_card, |
271 | struct mtpav_port *portp, | |
4a4d2cfd | 272 | struct snd_rawmidi_substream *substream) |
1da177e4 LT |
273 | { |
274 | u8 outbyte; | |
275 | ||
276 | // Get the outbyte first, so we can emulate running status if | |
277 | // necessary | |
278 | if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1) | |
279 | return; | |
280 | ||
281 | // send port change command if necessary | |
282 | ||
077d0ac5 TI |
283 | if (portp->hwport != mtp_card->outmidihwport) { |
284 | mtp_card->outmidihwport = portp->hwport; | |
1da177e4 LT |
285 | |
286 | snd_mtpav_send_byte(mtp_card, 0xf5); | |
077d0ac5 | 287 | snd_mtpav_send_byte(mtp_card, portp->hwport); |
45203832 TI |
288 | /* |
289 | snd_printk(KERN_DEBUG "new outport: 0x%x\n", | |
290 | (unsigned int) portp->hwport); | |
291 | */ | |
077d0ac5 TI |
292 | if (!(outbyte & 0x80) && portp->running_status) |
293 | snd_mtpav_send_byte(mtp_card, portp->running_status); | |
1da177e4 LT |
294 | } |
295 | ||
296 | // send data | |
297 | ||
298 | do { | |
299 | if (outbyte & 0x80) | |
077d0ac5 | 300 | portp->running_status = outbyte; |
1da177e4 LT |
301 | |
302 | snd_mtpav_send_byte(mtp_card, outbyte); | |
303 | } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1); | |
304 | } | |
305 | ||
4a4d2cfd | 306 | static void snd_mtpav_output_write(struct snd_rawmidi_substream *substream) |
1da177e4 | 307 | { |
077d0ac5 TI |
308 | struct mtpav *mtp_card = substream->rmidi->private_data; |
309 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 LT |
310 | unsigned long flags; |
311 | ||
312 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
077d0ac5 | 313 | snd_mtpav_output_port_write(mtp_card, portp, substream); |
1da177e4 LT |
314 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
315 | } | |
316 | ||
317 | ||
318 | /* | |
319 | * mtpav control | |
320 | */ | |
321 | ||
077d0ac5 | 322 | static void snd_mtpav_portscan(struct mtpav *chip) // put mtp into smart routing mode |
1da177e4 LT |
323 | { |
324 | u8 p; | |
325 | ||
326 | for (p = 0; p < 8; p++) { | |
327 | snd_mtpav_send_byte(chip, 0xf5); | |
328 | snd_mtpav_send_byte(chip, p); | |
329 | snd_mtpav_send_byte(chip, 0xfe); | |
330 | } | |
331 | } | |
332 | ||
333 | /* | |
334 | */ | |
335 | ||
4a4d2cfd | 336 | static int snd_mtpav_input_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 337 | { |
077d0ac5 TI |
338 | struct mtpav *mtp_card = substream->rmidi->private_data; |
339 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 340 | unsigned long flags; |
1da177e4 | 341 | |
1da177e4 LT |
342 | spin_lock_irqsave(&mtp_card->spinlock, flags); |
343 | portp->mode |= MTPAV_MODE_INPUT_OPENED; | |
344 | portp->input = substream; | |
345 | if (mtp_card->share_irq++ == 0) | |
346 | snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts | |
347 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
348 | return 0; | |
349 | } | |
350 | ||
351 | /* | |
352 | */ | |
353 | ||
4a4d2cfd | 354 | static int snd_mtpav_input_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 355 | { |
077d0ac5 TI |
356 | struct mtpav *mtp_card = substream->rmidi->private_data; |
357 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 358 | unsigned long flags; |
1da177e4 LT |
359 | |
360 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
077d0ac5 | 361 | portp->mode &= ~MTPAV_MODE_INPUT_OPENED; |
1da177e4 LT |
362 | portp->input = NULL; |
363 | if (--mtp_card->share_irq == 0) | |
364 | snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts | |
1da177e4 LT |
365 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
366 | return 0; | |
367 | } | |
368 | ||
369 | /* | |
370 | */ | |
371 | ||
4a4d2cfd | 372 | static void snd_mtpav_input_trigger(struct snd_rawmidi_substream *substream, int up) |
1da177e4 | 373 | { |
077d0ac5 TI |
374 | struct mtpav *mtp_card = substream->rmidi->private_data; |
375 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 376 | unsigned long flags; |
1da177e4 LT |
377 | |
378 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
379 | if (up) | |
380 | portp->mode |= MTPAV_MODE_INPUT_TRIGGERED; | |
381 | else | |
382 | portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED; | |
383 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
384 | ||
385 | } | |
386 | ||
387 | ||
388 | /* | |
389 | * timer interrupt for outputs | |
390 | */ | |
391 | ||
bc47ba90 | 392 | static void snd_mtpav_output_timer(struct timer_list *t) |
1da177e4 LT |
393 | { |
394 | unsigned long flags; | |
bc47ba90 | 395 | struct mtpav *chip = from_timer(chip, t, timer); |
1da177e4 LT |
396 | int p; |
397 | ||
398 | spin_lock_irqsave(&chip->spinlock, flags); | |
399 | /* reprogram timer */ | |
2b1b7811 | 400 | mod_timer(&chip->timer, 1 + jiffies); |
1da177e4 LT |
401 | /* process each port */ |
402 | for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) { | |
077d0ac5 | 403 | struct mtpav_port *portp = &chip->ports[p]; |
1da177e4 | 404 | if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output) |
077d0ac5 | 405 | snd_mtpav_output_port_write(chip, portp, portp->output); |
1da177e4 LT |
406 | } |
407 | spin_unlock_irqrestore(&chip->spinlock, flags); | |
408 | } | |
409 | ||
410 | /* spinlock held! */ | |
077d0ac5 | 411 | static void snd_mtpav_add_output_timer(struct mtpav *chip) |
1da177e4 | 412 | { |
2b1b7811 | 413 | mod_timer(&chip->timer, 1 + jiffies); |
1da177e4 LT |
414 | } |
415 | ||
416 | /* spinlock held! */ | |
077d0ac5 | 417 | static void snd_mtpav_remove_output_timer(struct mtpav *chip) |
1da177e4 LT |
418 | { |
419 | del_timer(&chip->timer); | |
420 | } | |
421 | ||
422 | /* | |
423 | */ | |
424 | ||
4a4d2cfd | 425 | static int snd_mtpav_output_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 426 | { |
077d0ac5 TI |
427 | struct mtpav *mtp_card = substream->rmidi->private_data; |
428 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 429 | unsigned long flags; |
1da177e4 LT |
430 | |
431 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
432 | portp->mode |= MTPAV_MODE_OUTPUT_OPENED; | |
433 | portp->output = substream; | |
434 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
435 | return 0; | |
436 | }; | |
437 | ||
438 | /* | |
439 | */ | |
440 | ||
4a4d2cfd | 441 | static int snd_mtpav_output_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 442 | { |
077d0ac5 TI |
443 | struct mtpav *mtp_card = substream->rmidi->private_data; |
444 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 445 | unsigned long flags; |
1da177e4 LT |
446 | |
447 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
077d0ac5 | 448 | portp->mode &= ~MTPAV_MODE_OUTPUT_OPENED; |
1da177e4 LT |
449 | portp->output = NULL; |
450 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
451 | return 0; | |
452 | }; | |
453 | ||
454 | /* | |
455 | */ | |
456 | ||
4a4d2cfd | 457 | static void snd_mtpav_output_trigger(struct snd_rawmidi_substream *substream, int up) |
1da177e4 | 458 | { |
077d0ac5 TI |
459 | struct mtpav *mtp_card = substream->rmidi->private_data; |
460 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 461 | unsigned long flags; |
1da177e4 LT |
462 | |
463 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
464 | if (up) { | |
077d0ac5 | 465 | if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) { |
1da177e4 LT |
466 | if (mtp_card->istimer++ == 0) |
467 | snd_mtpav_add_output_timer(mtp_card); | |
468 | portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED; | |
469 | } | |
470 | } else { | |
471 | portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED; | |
472 | if (--mtp_card->istimer == 0) | |
473 | snd_mtpav_remove_output_timer(mtp_card); | |
474 | } | |
475 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
476 | ||
477 | if (up) | |
478 | snd_mtpav_output_write(substream); | |
479 | } | |
480 | ||
481 | /* | |
482 | * midi interrupt for inputs | |
483 | */ | |
484 | ||
077d0ac5 | 485 | static void snd_mtpav_inmidi_process(struct mtpav *mcrd, u8 inbyte) |
1da177e4 | 486 | { |
077d0ac5 | 487 | struct mtpav_port *portp; |
1da177e4 LT |
488 | |
489 | if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST) | |
490 | return; | |
491 | ||
492 | portp = &mcrd->ports[mcrd->inmidiport]; | |
077d0ac5 | 493 | if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) |
1da177e4 | 494 | snd_rawmidi_receive(portp->input, &inbyte, 1); |
1da177e4 LT |
495 | } |
496 | ||
077d0ac5 | 497 | static void snd_mtpav_inmidi_h(struct mtpav *mcrd, u8 inbyte) |
1da177e4 | 498 | { |
1da177e4 LT |
499 | if (inbyte >= 0xf8) { |
500 | /* real-time midi code */ | |
501 | snd_mtpav_inmidi_process(mcrd, inbyte); | |
502 | return; | |
503 | } | |
504 | ||
505 | if (mcrd->inmidistate == 0) { // awaiting command | |
506 | if (inbyte == 0xf5) // MTP port # | |
507 | mcrd->inmidistate = 1; | |
508 | else | |
509 | snd_mtpav_inmidi_process(mcrd, inbyte); | |
510 | } else if (mcrd->inmidistate) { | |
511 | mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte); | |
512 | mcrd->inmidistate = 0; | |
513 | } | |
514 | } | |
515 | ||
077d0ac5 | 516 | static void snd_mtpav_read_bytes(struct mtpav *mcrd) |
1da177e4 LT |
517 | { |
518 | u8 clrread, setread; | |
519 | u8 mtp_read_byte; | |
520 | u8 sr, cbyt; | |
521 | int i; | |
522 | ||
523 | u8 sbyt = snd_mtpav_getreg(mcrd, SREG); | |
524 | ||
45203832 | 525 | /* printk(KERN_DEBUG "snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt); */ |
1da177e4 LT |
526 | |
527 | if (!(sbyt & SIGS_BYTE)) | |
528 | return; | |
529 | ||
530 | cbyt = snd_mtpav_getreg(mcrd, CREG); | |
531 | clrread = cbyt & (SIGC_READ ^ 0xff); | |
532 | setread = cbyt | SIGC_READ; | |
533 | ||
534 | do { | |
535 | ||
536 | mtp_read_byte = 0; | |
537 | for (i = 0; i < 4; i++) { | |
538 | snd_mtpav_mputreg(mcrd, CREG, setread); | |
539 | sr = snd_mtpav_getreg(mcrd, SREG); | |
540 | snd_mtpav_mputreg(mcrd, CREG, clrread); | |
541 | ||
542 | sr &= SIGS_IN0 | SIGS_IN1; | |
543 | sr >>= 4; | |
544 | mtp_read_byte |= sr << (i * 2); | |
545 | } | |
546 | ||
547 | snd_mtpav_inmidi_h(mcrd, mtp_read_byte); | |
548 | ||
549 | sbyt = snd_mtpav_getreg(mcrd, SREG); | |
550 | ||
551 | } while (sbyt & SIGS_BYTE); | |
552 | } | |
553 | ||
7d12e780 | 554 | static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id) |
1da177e4 | 555 | { |
077d0ac5 | 556 | struct mtpav *mcard = dev_id; |
1da177e4 | 557 | |
1da177e4 LT |
558 | spin_lock(&mcard->spinlock); |
559 | snd_mtpav_read_bytes(mcard); | |
560 | spin_unlock(&mcard->spinlock); | |
561 | return IRQ_HANDLED; | |
562 | } | |
563 | ||
564 | /* | |
565 | * get ISA resources | |
566 | */ | |
fbbb01a1 | 567 | static int snd_mtpav_get_ISA(struct mtpav *mcard) |
1da177e4 | 568 | { |
aa92050f TI |
569 | mcard->res_port = devm_request_region(mcard->card->dev, port, 3, |
570 | "MotuMTPAV MIDI"); | |
d0ad13ef | 571 | if (!mcard->res_port) { |
45203832 | 572 | snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port); |
1da177e4 LT |
573 | return -EBUSY; |
574 | } | |
575 | mcard->port = port; | |
aa92050f TI |
576 | if (devm_request_irq(mcard->card->dev, irq, snd_mtpav_irqh, 0, |
577 | "MOTU MTPAV", mcard)) { | |
45203832 | 578 | snd_printk(KERN_ERR "MTVAP IRQ %d busy\n", irq); |
1da177e4 LT |
579 | return -EBUSY; |
580 | } | |
581 | mcard->irq = irq; | |
582 | return 0; | |
583 | } | |
584 | ||
585 | ||
586 | /* | |
587 | */ | |
588 | ||
c36f486d | 589 | static const struct snd_rawmidi_ops snd_mtpav_output = { |
1da177e4 LT |
590 | .open = snd_mtpav_output_open, |
591 | .close = snd_mtpav_output_close, | |
592 | .trigger = snd_mtpav_output_trigger, | |
593 | }; | |
594 | ||
c36f486d | 595 | static const struct snd_rawmidi_ops snd_mtpav_input = { |
1da177e4 LT |
596 | .open = snd_mtpav_input_open, |
597 | .close = snd_mtpav_input_close, | |
598 | .trigger = snd_mtpav_input_trigger, | |
599 | }; | |
600 | ||
601 | ||
602 | /* | |
603 | * get RAWMIDI resources | |
604 | */ | |
605 | ||
fbbb01a1 BP |
606 | static void snd_mtpav_set_name(struct mtpav *chip, |
607 | struct snd_rawmidi_substream *substream) | |
1da177e4 LT |
608 | { |
609 | if (substream->number >= 0 && substream->number < chip->num_ports) | |
610 | sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1); | |
611 | else if (substream->number >= 8 && substream->number < chip->num_ports * 2) | |
612 | sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1); | |
613 | else if (substream->number == chip->num_ports * 2) | |
614 | strcpy(substream->name, "MTP computer"); | |
615 | else if (substream->number == chip->num_ports * 2 + 1) | |
616 | strcpy(substream->name, "MTP ADAT"); | |
617 | else | |
618 | strcpy(substream->name, "MTP broadcast"); | |
619 | } | |
620 | ||
fbbb01a1 | 621 | static int snd_mtpav_get_RAWMIDI(struct mtpav *mcard) |
1da177e4 | 622 | { |
077d0ac5 | 623 | int rval; |
4a4d2cfd TI |
624 | struct snd_rawmidi *rawmidi; |
625 | struct snd_rawmidi_substream *substream; | |
1da177e4 LT |
626 | struct list_head *list; |
627 | ||
1da177e4 | 628 | if (hwports < 1) |
077d0ac5 | 629 | hwports = 1; |
1da177e4 | 630 | else if (hwports > 8) |
077d0ac5 TI |
631 | hwports = 8; |
632 | mcard->num_ports = hwports; | |
1da177e4 | 633 | |
d0ad13ef TI |
634 | rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0, |
635 | mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, | |
636 | mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, | |
637 | &mcard->rmidi); | |
638 | if (rval < 0) | |
1da177e4 LT |
639 | return rval; |
640 | rawmidi = mcard->rmidi; | |
077d0ac5 | 641 | rawmidi->private_data = mcard; |
1da177e4 LT |
642 | |
643 | list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { | |
4a4d2cfd | 644 | substream = list_entry(list, struct snd_rawmidi_substream, list); |
1da177e4 LT |
645 | snd_mtpav_set_name(mcard, substream); |
646 | substream->ops = &snd_mtpav_input; | |
647 | } | |
648 | list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { | |
4a4d2cfd | 649 | substream = list_entry(list, struct snd_rawmidi_substream, list); |
1da177e4 LT |
650 | snd_mtpav_set_name(mcard, substream); |
651 | substream->ops = &snd_mtpav_output; | |
652 | mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number); | |
653 | } | |
654 | rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | | |
655 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
656 | sprintf(rawmidi->name, "MTP AV MIDI"); | |
1da177e4 LT |
657 | return 0; |
658 | } | |
659 | ||
660 | /* | |
661 | */ | |
662 | ||
077d0ac5 | 663 | static void snd_mtpav_free(struct snd_card *card) |
1da177e4 | 664 | { |
077d0ac5 | 665 | struct mtpav *crd = card->private_data; |
1da177e4 LT |
666 | unsigned long flags; |
667 | ||
668 | spin_lock_irqsave(&crd->spinlock, flags); | |
669 | if (crd->istimer > 0) | |
670 | snd_mtpav_remove_output_timer(crd); | |
671 | spin_unlock_irqrestore(&crd->spinlock, flags); | |
1da177e4 LT |
672 | } |
673 | ||
674 | /* | |
675 | */ | |
fbbb01a1 | 676 | static int snd_mtpav_probe(struct platform_device *dev) |
1da177e4 | 677 | { |
077d0ac5 TI |
678 | struct snd_card *card; |
679 | int err; | |
680 | struct mtpav *mtp_card; | |
1da177e4 | 681 | |
aa92050f TI |
682 | err = snd_devm_card_new(&dev->dev, index, id, THIS_MODULE, |
683 | sizeof(*mtp_card), &card); | |
bd7dd77c TI |
684 | if (err < 0) |
685 | return err; | |
1da177e4 | 686 | |
077d0ac5 TI |
687 | mtp_card = card->private_data; |
688 | spin_lock_init(&mtp_card->spinlock); | |
077d0ac5 TI |
689 | mtp_card->card = card; |
690 | mtp_card->irq = -1; | |
691 | mtp_card->share_irq = 0; | |
077d0ac5 TI |
692 | mtp_card->inmidistate = 0; |
693 | mtp_card->outmidihwport = 0xffffffff; | |
bc47ba90 | 694 | timer_setup(&mtp_card->timer, snd_mtpav_output_timer, 0); |
077d0ac5 | 695 | |
32fe6142 TI |
696 | err = snd_mtpav_get_RAWMIDI(mtp_card); |
697 | if (err < 0) | |
aa92050f | 698 | return err; |
32fe6142 | 699 | |
32cf9a16 TI |
700 | mtp_card->inmidiport = mtp_card->num_ports + MTPAV_PIDX_BROADCAST; |
701 | ||
1da177e4 | 702 | err = snd_mtpav_get_ISA(mtp_card); |
1da177e4 | 703 | if (err < 0) |
aa92050f | 704 | return err; |
1da177e4 | 705 | |
077d0ac5 TI |
706 | strcpy(card->driver, "MTPAV"); |
707 | strcpy(card->shortname, "MTPAV on parallel port"); | |
708 | snprintf(card->longname, sizeof(card->longname), | |
709 | "MTPAV on parallel port at 0x%lx", port); | |
1da177e4 | 710 | |
077d0ac5 | 711 | snd_mtpav_portscan(mtp_card); |
1da177e4 | 712 | |
077d0ac5 | 713 | err = snd_card_register(mtp_card->card); |
1da177e4 | 714 | if (err < 0) |
aa92050f | 715 | return err; |
1da177e4 | 716 | |
4fb27190 TI |
717 | card->private_free = snd_mtpav_free; |
718 | ||
077d0ac5 | 719 | platform_set_drvdata(dev, card); |
1da177e4 | 720 | printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port); |
1da177e4 | 721 | return 0; |
077d0ac5 | 722 | } |
1da177e4 | 723 | |
077d0ac5 TI |
724 | #define SND_MTPAV_DRIVER "snd_mtpav" |
725 | ||
726 | static struct platform_driver snd_mtpav_driver = { | |
727 | .probe = snd_mtpav_probe, | |
077d0ac5 | 728 | .driver = { |
8bf01d8a | 729 | .name = SND_MTPAV_DRIVER, |
077d0ac5 TI |
730 | }, |
731 | }; | |
732 | ||
733 | static int __init alsa_card_mtpav_init(void) | |
1da177e4 | 734 | { |
077d0ac5 | 735 | int err; |
077d0ac5 | 736 | |
d0ad13ef TI |
737 | err = platform_driver_register(&snd_mtpav_driver); |
738 | if (err < 0) | |
077d0ac5 TI |
739 | return err; |
740 | ||
741 | device = platform_device_register_simple(SND_MTPAV_DRIVER, -1, NULL, 0); | |
7152447d RH |
742 | if (!IS_ERR(device)) { |
743 | if (platform_get_drvdata(device)) | |
744 | return 0; | |
745 | platform_device_unregister(device); | |
746 | err = -ENODEV; | |
747 | } else | |
748 | err = PTR_ERR(device); | |
749 | platform_driver_unregister(&snd_mtpav_driver); | |
750 | return err; | |
1da177e4 LT |
751 | } |
752 | ||
077d0ac5 TI |
753 | static void __exit alsa_card_mtpav_exit(void) |
754 | { | |
f7a9275d | 755 | platform_device_unregister(device); |
077d0ac5 TI |
756 | platform_driver_unregister(&snd_mtpav_driver); |
757 | } | |
1da177e4 LT |
758 | |
759 | module_init(alsa_card_mtpav_init) | |
760 | module_exit(alsa_card_mtpav_exit) |