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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"); | |
56 | MODULE_SUPPORTED_DEVICE("{{MOTU,MidiTimePiece AV multiport MIDI}}"); | |
57 | ||
58 | // io resources | |
59 | #define MTPAV_IOBASE 0x378 | |
60 | #define MTPAV_IRQ 7 | |
61 | #define MTPAV_MAX_PORTS 8 | |
62 | ||
63 | static int index = SNDRV_DEFAULT_IDX1; | |
64 | static char *id = SNDRV_DEFAULT_STR1; | |
65 | static long port = MTPAV_IOBASE; /* 0x378, 0x278 */ | |
66 | static int irq = MTPAV_IRQ; /* 7, 5 */ | |
67 | static int hwports = MTPAV_MAX_PORTS; /* use hardware ports 1-8 */ | |
68 | ||
69 | module_param(index, int, 0444); | |
70 | MODULE_PARM_DESC(index, "Index value for MotuMTPAV MIDI."); | |
71 | module_param(id, charp, 0444); | |
72 | MODULE_PARM_DESC(id, "ID string for MotuMTPAV MIDI."); | |
b11ce420 | 73 | module_param_hw(port, long, ioport, 0444); |
1da177e4 | 74 | MODULE_PARM_DESC(port, "Parallel port # for MotuMTPAV MIDI."); |
b11ce420 | 75 | module_param_hw(irq, int, irq, 0444); |
1da177e4 LT |
76 | MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI."); |
77 | module_param(hwports, int, 0444); | |
78 | MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI."); | |
79 | ||
f7a9275d CL |
80 | static struct platform_device *device; |
81 | ||
1da177e4 LT |
82 | /* |
83 | * defines | |
84 | */ | |
85 | //#define USE_FAKE_MTP // don't actually read/write to MTP device (for debugging without an actual unit) (does not work yet) | |
86 | ||
87 | // parallel port usage masks | |
88 | #define SIGS_BYTE 0x08 | |
89 | #define SIGS_RFD 0x80 | |
90 | #define SIGS_IRQ 0x40 | |
91 | #define SIGS_IN0 0x10 | |
92 | #define SIGS_IN1 0x20 | |
93 | ||
94 | #define SIGC_WRITE 0x04 | |
95 | #define SIGC_READ 0x08 | |
96 | #define SIGC_INTEN 0x10 | |
97 | ||
98 | #define DREG 0 | |
99 | #define SREG 1 | |
100 | #define CREG 2 | |
101 | ||
102 | // | |
103 | #define MTPAV_MODE_INPUT_OPENED 0x01 | |
104 | #define MTPAV_MODE_OUTPUT_OPENED 0x02 | |
105 | #define MTPAV_MODE_INPUT_TRIGGERED 0x04 | |
106 | #define MTPAV_MODE_OUTPUT_TRIGGERED 0x08 | |
107 | ||
108 | #define NUMPORTS (0x12+1) | |
109 | ||
110 | ||
111 | /* | |
112 | */ | |
113 | ||
077d0ac5 | 114 | struct mtpav_port { |
1da177e4 LT |
115 | u8 number; |
116 | u8 hwport; | |
117 | u8 mode; | |
118 | u8 running_status; | |
4a4d2cfd TI |
119 | struct snd_rawmidi_substream *input; |
120 | struct snd_rawmidi_substream *output; | |
077d0ac5 | 121 | }; |
1da177e4 | 122 | |
077d0ac5 | 123 | struct mtpav { |
4a4d2cfd | 124 | struct snd_card *card; |
1da177e4 LT |
125 | unsigned long port; |
126 | struct resource *res_port; | |
127 | int irq; /* interrupt (for inputs) */ | |
128 | spinlock_t spinlock; | |
129 | int share_irq; /* number of accesses to input interrupts */ | |
130 | int istimer; /* number of accesses to timer interrupts */ | |
131 | struct timer_list timer; /* timer interrupts for outputs */ | |
4a4d2cfd | 132 | struct snd_rawmidi *rmidi; |
1da177e4 | 133 | int num_ports; /* number of hw ports (1-8) */ |
077d0ac5 | 134 | struct mtpav_port ports[NUMPORTS]; /* all ports including computer, adat and bc */ |
1da177e4 LT |
135 | |
136 | u32 inmidiport; /* selected input midi port */ | |
137 | u32 inmidistate; /* during midi command 0xf5 */ | |
138 | ||
139 | u32 outmidihwport; /* selected output midi hw port */ | |
077d0ac5 | 140 | }; |
1da177e4 LT |
141 | |
142 | ||
1da177e4 LT |
143 | /* |
144 | * possible hardware ports (selected by 0xf5 port message) | |
145 | * 0x00 all ports | |
146 | * 0x01 .. 0x08 this MTP's ports 1..8 | |
147 | * 0x09 .. 0x10 networked MTP's ports (9..16) | |
148 | * 0x11 networked MTP's computer port | |
149 | * 0x63 to ADAT | |
150 | * | |
151 | * mappig: | |
152 | * subdevice 0 - (X-1) ports | |
153 | * X - (2*X-1) networked ports | |
154 | * X computer | |
155 | * X+1 ADAT | |
156 | * X+2 all ports | |
157 | * | |
158 | * where X = chip->num_ports | |
159 | */ | |
160 | ||
161 | #define MTPAV_PIDX_COMPUTER 0 | |
162 | #define MTPAV_PIDX_ADAT 1 | |
163 | #define MTPAV_PIDX_BROADCAST 2 | |
164 | ||
165 | ||
077d0ac5 | 166 | static int translate_subdevice_to_hwport(struct mtpav *chip, int subdev) |
1da177e4 LT |
167 | { |
168 | if (subdev < 0) | |
169 | return 0x01; /* invalid - use port 0 as default */ | |
170 | else if (subdev < chip->num_ports) | |
171 | return subdev + 1; /* single mtp port */ | |
172 | else if (subdev < chip->num_ports * 2) | |
173 | return subdev - chip->num_ports + 0x09; /* remote port */ | |
174 | else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER) | |
175 | return 0x11; /* computer port */ | |
176 | else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT) | |
177 | return 0x63; /* ADAT */ | |
178 | return 0; /* all ports */ | |
179 | } | |
180 | ||
077d0ac5 | 181 | static int translate_hwport_to_subdevice(struct mtpav *chip, int hwport) |
1da177e4 LT |
182 | { |
183 | int p; | |
184 | if (hwport <= 0x00) /* all ports */ | |
185 | return chip->num_ports + MTPAV_PIDX_BROADCAST; | |
186 | else if (hwport <= 0x08) { /* single port */ | |
187 | p = hwport - 1; | |
188 | if (p >= chip->num_ports) | |
189 | p = 0; | |
190 | return p; | |
191 | } else if (hwport <= 0x10) { /* remote port */ | |
192 | p = hwport - 0x09 + chip->num_ports; | |
193 | if (p >= chip->num_ports * 2) | |
194 | p = chip->num_ports; | |
195 | return p; | |
196 | } else if (hwport == 0x11) /* computer port */ | |
197 | return chip->num_ports + MTPAV_PIDX_COMPUTER; | |
198 | else /* ADAT */ | |
199 | return chip->num_ports + MTPAV_PIDX_ADAT; | |
200 | } | |
201 | ||
202 | ||
203 | /* | |
204 | */ | |
205 | ||
077d0ac5 | 206 | static u8 snd_mtpav_getreg(struct mtpav *chip, u16 reg) |
1da177e4 LT |
207 | { |
208 | u8 rval = 0; | |
209 | ||
210 | if (reg == SREG) { | |
211 | rval = inb(chip->port + SREG); | |
212 | rval = (rval & 0xf8); | |
213 | } else if (reg == CREG) { | |
214 | rval = inb(chip->port + CREG); | |
215 | rval = (rval & 0x1c); | |
216 | } | |
217 | ||
218 | return rval; | |
219 | } | |
220 | ||
221 | /* | |
222 | */ | |
223 | ||
077d0ac5 | 224 | static inline void snd_mtpav_mputreg(struct mtpav *chip, u16 reg, u8 val) |
1da177e4 | 225 | { |
077d0ac5 TI |
226 | if (reg == DREG || reg == CREG) |
227 | outb(val, chip->port + reg); | |
1da177e4 LT |
228 | } |
229 | ||
230 | /* | |
231 | */ | |
232 | ||
077d0ac5 | 233 | static void snd_mtpav_wait_rfdhi(struct mtpav *chip) |
1da177e4 LT |
234 | { |
235 | int counts = 10000; | |
236 | u8 sbyte; | |
237 | ||
238 | sbyte = snd_mtpav_getreg(chip, SREG); | |
239 | while (!(sbyte & SIGS_RFD) && counts--) { | |
240 | sbyte = snd_mtpav_getreg(chip, SREG); | |
241 | udelay(10); | |
242 | } | |
243 | } | |
244 | ||
077d0ac5 | 245 | static void snd_mtpav_send_byte(struct mtpav *chip, u8 byte) |
1da177e4 LT |
246 | { |
247 | u8 tcbyt; | |
248 | u8 clrwrite; | |
249 | u8 setwrite; | |
250 | ||
251 | snd_mtpav_wait_rfdhi(chip); | |
252 | ||
253 | ///////////////// | |
254 | ||
255 | tcbyt = snd_mtpav_getreg(chip, CREG); | |
256 | clrwrite = tcbyt & (SIGC_WRITE ^ 0xff); | |
257 | setwrite = tcbyt | SIGC_WRITE; | |
258 | ||
259 | snd_mtpav_mputreg(chip, DREG, byte); | |
260 | snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit | |
261 | ||
262 | snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit | |
263 | ||
264 | } | |
265 | ||
266 | ||
267 | /* | |
268 | */ | |
269 | ||
270 | /* call this with spin lock held */ | |
077d0ac5 TI |
271 | static void snd_mtpav_output_port_write(struct mtpav *mtp_card, |
272 | struct mtpav_port *portp, | |
4a4d2cfd | 273 | struct snd_rawmidi_substream *substream) |
1da177e4 LT |
274 | { |
275 | u8 outbyte; | |
276 | ||
277 | // Get the outbyte first, so we can emulate running status if | |
278 | // necessary | |
279 | if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1) | |
280 | return; | |
281 | ||
282 | // send port change command if necessary | |
283 | ||
077d0ac5 TI |
284 | if (portp->hwport != mtp_card->outmidihwport) { |
285 | mtp_card->outmidihwport = portp->hwport; | |
1da177e4 LT |
286 | |
287 | snd_mtpav_send_byte(mtp_card, 0xf5); | |
077d0ac5 | 288 | snd_mtpav_send_byte(mtp_card, portp->hwport); |
45203832 TI |
289 | /* |
290 | snd_printk(KERN_DEBUG "new outport: 0x%x\n", | |
291 | (unsigned int) portp->hwport); | |
292 | */ | |
077d0ac5 TI |
293 | if (!(outbyte & 0x80) && portp->running_status) |
294 | snd_mtpav_send_byte(mtp_card, portp->running_status); | |
1da177e4 LT |
295 | } |
296 | ||
297 | // send data | |
298 | ||
299 | do { | |
300 | if (outbyte & 0x80) | |
077d0ac5 | 301 | portp->running_status = outbyte; |
1da177e4 LT |
302 | |
303 | snd_mtpav_send_byte(mtp_card, outbyte); | |
304 | } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1); | |
305 | } | |
306 | ||
4a4d2cfd | 307 | static void snd_mtpav_output_write(struct snd_rawmidi_substream *substream) |
1da177e4 | 308 | { |
077d0ac5 TI |
309 | struct mtpav *mtp_card = substream->rmidi->private_data; |
310 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 LT |
311 | unsigned long flags; |
312 | ||
313 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
077d0ac5 | 314 | snd_mtpav_output_port_write(mtp_card, portp, substream); |
1da177e4 LT |
315 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
316 | } | |
317 | ||
318 | ||
319 | /* | |
320 | * mtpav control | |
321 | */ | |
322 | ||
077d0ac5 | 323 | static void snd_mtpav_portscan(struct mtpav *chip) // put mtp into smart routing mode |
1da177e4 LT |
324 | { |
325 | u8 p; | |
326 | ||
327 | for (p = 0; p < 8; p++) { | |
328 | snd_mtpav_send_byte(chip, 0xf5); | |
329 | snd_mtpav_send_byte(chip, p); | |
330 | snd_mtpav_send_byte(chip, 0xfe); | |
331 | } | |
332 | } | |
333 | ||
334 | /* | |
335 | */ | |
336 | ||
4a4d2cfd | 337 | static int snd_mtpav_input_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 338 | { |
077d0ac5 TI |
339 | struct mtpav *mtp_card = substream->rmidi->private_data; |
340 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 341 | unsigned long flags; |
1da177e4 | 342 | |
1da177e4 LT |
343 | spin_lock_irqsave(&mtp_card->spinlock, flags); |
344 | portp->mode |= MTPAV_MODE_INPUT_OPENED; | |
345 | portp->input = substream; | |
346 | if (mtp_card->share_irq++ == 0) | |
347 | snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts | |
348 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
349 | return 0; | |
350 | } | |
351 | ||
352 | /* | |
353 | */ | |
354 | ||
4a4d2cfd | 355 | static int snd_mtpav_input_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 356 | { |
077d0ac5 TI |
357 | struct mtpav *mtp_card = substream->rmidi->private_data; |
358 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 359 | unsigned long flags; |
1da177e4 LT |
360 | |
361 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
077d0ac5 | 362 | portp->mode &= ~MTPAV_MODE_INPUT_OPENED; |
1da177e4 LT |
363 | portp->input = NULL; |
364 | if (--mtp_card->share_irq == 0) | |
365 | snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts | |
1da177e4 LT |
366 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
367 | return 0; | |
368 | } | |
369 | ||
370 | /* | |
371 | */ | |
372 | ||
4a4d2cfd | 373 | static void snd_mtpav_input_trigger(struct snd_rawmidi_substream *substream, int up) |
1da177e4 | 374 | { |
077d0ac5 TI |
375 | struct mtpav *mtp_card = substream->rmidi->private_data; |
376 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 377 | unsigned long flags; |
1da177e4 LT |
378 | |
379 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
380 | if (up) | |
381 | portp->mode |= MTPAV_MODE_INPUT_TRIGGERED; | |
382 | else | |
383 | portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED; | |
384 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
385 | ||
386 | } | |
387 | ||
388 | ||
389 | /* | |
390 | * timer interrupt for outputs | |
391 | */ | |
392 | ||
bc47ba90 | 393 | static void snd_mtpav_output_timer(struct timer_list *t) |
1da177e4 LT |
394 | { |
395 | unsigned long flags; | |
bc47ba90 | 396 | struct mtpav *chip = from_timer(chip, t, timer); |
1da177e4 LT |
397 | int p; |
398 | ||
399 | spin_lock_irqsave(&chip->spinlock, flags); | |
400 | /* reprogram timer */ | |
2b1b7811 | 401 | mod_timer(&chip->timer, 1 + jiffies); |
1da177e4 LT |
402 | /* process each port */ |
403 | for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) { | |
077d0ac5 | 404 | struct mtpav_port *portp = &chip->ports[p]; |
1da177e4 | 405 | if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output) |
077d0ac5 | 406 | snd_mtpav_output_port_write(chip, portp, portp->output); |
1da177e4 LT |
407 | } |
408 | spin_unlock_irqrestore(&chip->spinlock, flags); | |
409 | } | |
410 | ||
411 | /* spinlock held! */ | |
077d0ac5 | 412 | static void snd_mtpav_add_output_timer(struct mtpav *chip) |
1da177e4 | 413 | { |
2b1b7811 | 414 | mod_timer(&chip->timer, 1 + jiffies); |
1da177e4 LT |
415 | } |
416 | ||
417 | /* spinlock held! */ | |
077d0ac5 | 418 | static void snd_mtpav_remove_output_timer(struct mtpav *chip) |
1da177e4 LT |
419 | { |
420 | del_timer(&chip->timer); | |
421 | } | |
422 | ||
423 | /* | |
424 | */ | |
425 | ||
4a4d2cfd | 426 | static int snd_mtpav_output_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 427 | { |
077d0ac5 TI |
428 | struct mtpav *mtp_card = substream->rmidi->private_data; |
429 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 430 | unsigned long flags; |
1da177e4 LT |
431 | |
432 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
433 | portp->mode |= MTPAV_MODE_OUTPUT_OPENED; | |
434 | portp->output = substream; | |
435 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
436 | return 0; | |
437 | }; | |
438 | ||
439 | /* | |
440 | */ | |
441 | ||
4a4d2cfd | 442 | static int snd_mtpav_output_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 443 | { |
077d0ac5 TI |
444 | struct mtpav *mtp_card = substream->rmidi->private_data; |
445 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 446 | unsigned long flags; |
1da177e4 LT |
447 | |
448 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
077d0ac5 | 449 | portp->mode &= ~MTPAV_MODE_OUTPUT_OPENED; |
1da177e4 LT |
450 | portp->output = NULL; |
451 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
452 | return 0; | |
453 | }; | |
454 | ||
455 | /* | |
456 | */ | |
457 | ||
4a4d2cfd | 458 | static void snd_mtpav_output_trigger(struct snd_rawmidi_substream *substream, int up) |
1da177e4 | 459 | { |
077d0ac5 TI |
460 | struct mtpav *mtp_card = substream->rmidi->private_data; |
461 | struct mtpav_port *portp = &mtp_card->ports[substream->number]; | |
1da177e4 | 462 | unsigned long flags; |
1da177e4 LT |
463 | |
464 | spin_lock_irqsave(&mtp_card->spinlock, flags); | |
465 | if (up) { | |
077d0ac5 | 466 | if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) { |
1da177e4 LT |
467 | if (mtp_card->istimer++ == 0) |
468 | snd_mtpav_add_output_timer(mtp_card); | |
469 | portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED; | |
470 | } | |
471 | } else { | |
472 | portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED; | |
473 | if (--mtp_card->istimer == 0) | |
474 | snd_mtpav_remove_output_timer(mtp_card); | |
475 | } | |
476 | spin_unlock_irqrestore(&mtp_card->spinlock, flags); | |
477 | ||
478 | if (up) | |
479 | snd_mtpav_output_write(substream); | |
480 | } | |
481 | ||
482 | /* | |
483 | * midi interrupt for inputs | |
484 | */ | |
485 | ||
077d0ac5 | 486 | static void snd_mtpav_inmidi_process(struct mtpav *mcrd, u8 inbyte) |
1da177e4 | 487 | { |
077d0ac5 | 488 | struct mtpav_port *portp; |
1da177e4 LT |
489 | |
490 | if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST) | |
491 | return; | |
492 | ||
493 | portp = &mcrd->ports[mcrd->inmidiport]; | |
077d0ac5 | 494 | if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) |
1da177e4 | 495 | snd_rawmidi_receive(portp->input, &inbyte, 1); |
1da177e4 LT |
496 | } |
497 | ||
077d0ac5 | 498 | static void snd_mtpav_inmidi_h(struct mtpav *mcrd, u8 inbyte) |
1da177e4 | 499 | { |
1da177e4 LT |
500 | if (inbyte >= 0xf8) { |
501 | /* real-time midi code */ | |
502 | snd_mtpav_inmidi_process(mcrd, inbyte); | |
503 | return; | |
504 | } | |
505 | ||
506 | if (mcrd->inmidistate == 0) { // awaiting command | |
507 | if (inbyte == 0xf5) // MTP port # | |
508 | mcrd->inmidistate = 1; | |
509 | else | |
510 | snd_mtpav_inmidi_process(mcrd, inbyte); | |
511 | } else if (mcrd->inmidistate) { | |
512 | mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte); | |
513 | mcrd->inmidistate = 0; | |
514 | } | |
515 | } | |
516 | ||
077d0ac5 | 517 | static void snd_mtpav_read_bytes(struct mtpav *mcrd) |
1da177e4 LT |
518 | { |
519 | u8 clrread, setread; | |
520 | u8 mtp_read_byte; | |
521 | u8 sr, cbyt; | |
522 | int i; | |
523 | ||
524 | u8 sbyt = snd_mtpav_getreg(mcrd, SREG); | |
525 | ||
45203832 | 526 | /* printk(KERN_DEBUG "snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt); */ |
1da177e4 LT |
527 | |
528 | if (!(sbyt & SIGS_BYTE)) | |
529 | return; | |
530 | ||
531 | cbyt = snd_mtpav_getreg(mcrd, CREG); | |
532 | clrread = cbyt & (SIGC_READ ^ 0xff); | |
533 | setread = cbyt | SIGC_READ; | |
534 | ||
535 | do { | |
536 | ||
537 | mtp_read_byte = 0; | |
538 | for (i = 0; i < 4; i++) { | |
539 | snd_mtpav_mputreg(mcrd, CREG, setread); | |
540 | sr = snd_mtpav_getreg(mcrd, SREG); | |
541 | snd_mtpav_mputreg(mcrd, CREG, clrread); | |
542 | ||
543 | sr &= SIGS_IN0 | SIGS_IN1; | |
544 | sr >>= 4; | |
545 | mtp_read_byte |= sr << (i * 2); | |
546 | } | |
547 | ||
548 | snd_mtpav_inmidi_h(mcrd, mtp_read_byte); | |
549 | ||
550 | sbyt = snd_mtpav_getreg(mcrd, SREG); | |
551 | ||
552 | } while (sbyt & SIGS_BYTE); | |
553 | } | |
554 | ||
7d12e780 | 555 | static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id) |
1da177e4 | 556 | { |
077d0ac5 | 557 | struct mtpav *mcard = dev_id; |
1da177e4 | 558 | |
1da177e4 LT |
559 | spin_lock(&mcard->spinlock); |
560 | snd_mtpav_read_bytes(mcard); | |
561 | spin_unlock(&mcard->spinlock); | |
562 | return IRQ_HANDLED; | |
563 | } | |
564 | ||
565 | /* | |
566 | * get ISA resources | |
567 | */ | |
fbbb01a1 | 568 | static int snd_mtpav_get_ISA(struct mtpav *mcard) |
1da177e4 LT |
569 | { |
570 | if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) { | |
45203832 | 571 | snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port); |
1da177e4 LT |
572 | return -EBUSY; |
573 | } | |
574 | mcard->port = port; | |
88e24c3a | 575 | if (request_irq(irq, snd_mtpav_irqh, 0, "MOTU MTPAV", mcard)) { |
45203832 | 576 | snd_printk(KERN_ERR "MTVAP IRQ %d busy\n", irq); |
1da177e4 LT |
577 | return -EBUSY; |
578 | } | |
579 | mcard->irq = irq; | |
580 | return 0; | |
581 | } | |
582 | ||
583 | ||
584 | /* | |
585 | */ | |
586 | ||
c36f486d | 587 | static const struct snd_rawmidi_ops snd_mtpav_output = { |
1da177e4 LT |
588 | .open = snd_mtpav_output_open, |
589 | .close = snd_mtpav_output_close, | |
590 | .trigger = snd_mtpav_output_trigger, | |
591 | }; | |
592 | ||
c36f486d | 593 | static const struct snd_rawmidi_ops snd_mtpav_input = { |
1da177e4 LT |
594 | .open = snd_mtpav_input_open, |
595 | .close = snd_mtpav_input_close, | |
596 | .trigger = snd_mtpav_input_trigger, | |
597 | }; | |
598 | ||
599 | ||
600 | /* | |
601 | * get RAWMIDI resources | |
602 | */ | |
603 | ||
fbbb01a1 BP |
604 | static void snd_mtpav_set_name(struct mtpav *chip, |
605 | struct snd_rawmidi_substream *substream) | |
1da177e4 LT |
606 | { |
607 | if (substream->number >= 0 && substream->number < chip->num_ports) | |
608 | sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1); | |
609 | else if (substream->number >= 8 && substream->number < chip->num_ports * 2) | |
610 | sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1); | |
611 | else if (substream->number == chip->num_ports * 2) | |
612 | strcpy(substream->name, "MTP computer"); | |
613 | else if (substream->number == chip->num_ports * 2 + 1) | |
614 | strcpy(substream->name, "MTP ADAT"); | |
615 | else | |
616 | strcpy(substream->name, "MTP broadcast"); | |
617 | } | |
618 | ||
fbbb01a1 | 619 | static int snd_mtpav_get_RAWMIDI(struct mtpav *mcard) |
1da177e4 | 620 | { |
077d0ac5 | 621 | int rval; |
4a4d2cfd TI |
622 | struct snd_rawmidi *rawmidi; |
623 | struct snd_rawmidi_substream *substream; | |
1da177e4 LT |
624 | struct list_head *list; |
625 | ||
1da177e4 | 626 | if (hwports < 1) |
077d0ac5 | 627 | hwports = 1; |
1da177e4 | 628 | else if (hwports > 8) |
077d0ac5 TI |
629 | hwports = 8; |
630 | mcard->num_ports = hwports; | |
1da177e4 LT |
631 | |
632 | if ((rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0, | |
633 | mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, | |
634 | mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, | |
635 | &mcard->rmidi)) < 0) | |
636 | return rval; | |
637 | rawmidi = mcard->rmidi; | |
077d0ac5 | 638 | rawmidi->private_data = mcard; |
1da177e4 LT |
639 | |
640 | list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { | |
4a4d2cfd | 641 | substream = list_entry(list, struct snd_rawmidi_substream, list); |
1da177e4 LT |
642 | snd_mtpav_set_name(mcard, substream); |
643 | substream->ops = &snd_mtpav_input; | |
644 | } | |
645 | list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { | |
4a4d2cfd | 646 | substream = list_entry(list, struct snd_rawmidi_substream, list); |
1da177e4 LT |
647 | snd_mtpav_set_name(mcard, substream); |
648 | substream->ops = &snd_mtpav_output; | |
649 | mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number); | |
650 | } | |
651 | rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | | |
652 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
653 | sprintf(rawmidi->name, "MTP AV MIDI"); | |
1da177e4 LT |
654 | return 0; |
655 | } | |
656 | ||
657 | /* | |
658 | */ | |
659 | ||
077d0ac5 | 660 | static void snd_mtpav_free(struct snd_card *card) |
1da177e4 | 661 | { |
077d0ac5 | 662 | struct mtpav *crd = card->private_data; |
1da177e4 LT |
663 | unsigned long flags; |
664 | ||
665 | spin_lock_irqsave(&crd->spinlock, flags); | |
666 | if (crd->istimer > 0) | |
667 | snd_mtpav_remove_output_timer(crd); | |
668 | spin_unlock_irqrestore(&crd->spinlock, flags); | |
669 | if (crd->irq >= 0) | |
670 | free_irq(crd->irq, (void *)crd); | |
b1d5776d | 671 | release_and_free_resource(crd->res_port); |
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 | |
5872f3f6 TI |
682 | err = snd_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 TI |
695 | |
696 | card->private_free = snd_mtpav_free; | |
1da177e4 | 697 | |
32fe6142 TI |
698 | err = snd_mtpav_get_RAWMIDI(mtp_card); |
699 | if (err < 0) | |
700 | goto __error; | |
701 | ||
32cf9a16 TI |
702 | mtp_card->inmidiport = mtp_card->num_ports + MTPAV_PIDX_BROADCAST; |
703 | ||
1da177e4 | 704 | err = snd_mtpav_get_ISA(mtp_card); |
1da177e4 LT |
705 | if (err < 0) |
706 | goto __error; | |
707 | ||
077d0ac5 TI |
708 | strcpy(card->driver, "MTPAV"); |
709 | strcpy(card->shortname, "MTPAV on parallel port"); | |
710 | snprintf(card->longname, sizeof(card->longname), | |
711 | "MTPAV on parallel port at 0x%lx", port); | |
1da177e4 | 712 | |
077d0ac5 | 713 | snd_mtpav_portscan(mtp_card); |
1da177e4 | 714 | |
077d0ac5 | 715 | err = snd_card_register(mtp_card->card); |
1da177e4 LT |
716 | if (err < 0) |
717 | goto __error; | |
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 LT |
721 | return 0; |
722 | ||
077d0ac5 TI |
723 | __error: |
724 | snd_card_free(card); | |
1da177e4 LT |
725 | return err; |
726 | } | |
727 | ||
fbbb01a1 | 728 | static int snd_mtpav_remove(struct platform_device *devptr) |
077d0ac5 TI |
729 | { |
730 | snd_card_free(platform_get_drvdata(devptr)); | |
077d0ac5 TI |
731 | return 0; |
732 | } | |
1da177e4 | 733 | |
077d0ac5 TI |
734 | #define SND_MTPAV_DRIVER "snd_mtpav" |
735 | ||
736 | static struct platform_driver snd_mtpav_driver = { | |
737 | .probe = snd_mtpav_probe, | |
fbbb01a1 | 738 | .remove = snd_mtpav_remove, |
077d0ac5 | 739 | .driver = { |
8bf01d8a | 740 | .name = SND_MTPAV_DRIVER, |
077d0ac5 TI |
741 | }, |
742 | }; | |
743 | ||
744 | static int __init alsa_card_mtpav_init(void) | |
1da177e4 | 745 | { |
077d0ac5 | 746 | int err; |
077d0ac5 TI |
747 | |
748 | if ((err = platform_driver_register(&snd_mtpav_driver)) < 0) | |
749 | return err; | |
750 | ||
751 | device = platform_device_register_simple(SND_MTPAV_DRIVER, -1, NULL, 0); | |
7152447d RH |
752 | if (!IS_ERR(device)) { |
753 | if (platform_get_drvdata(device)) | |
754 | return 0; | |
755 | platform_device_unregister(device); | |
756 | err = -ENODEV; | |
757 | } else | |
758 | err = PTR_ERR(device); | |
759 | platform_driver_unregister(&snd_mtpav_driver); | |
760 | return err; | |
1da177e4 LT |
761 | } |
762 | ||
077d0ac5 TI |
763 | static void __exit alsa_card_mtpav_exit(void) |
764 | { | |
f7a9275d | 765 | platform_device_unregister(device); |
077d0ac5 TI |
766 | platform_driver_unregister(&snd_mtpav_driver); |
767 | } | |
1da177e4 LT |
768 | |
769 | module_init(alsa_card_mtpav_init) | |
770 | module_exit(alsa_card_mtpav_exit) |