Root/
1 | /* |
2 | * ALSA Driver for Ego Systems Inc. (ESI) Miditerminal 4140 |
3 | * Copyright (c) 2006 by Matthias König <mk@phasorlab.de> |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | * |
19 | */ |
20 | |
21 | #include <linux/init.h> |
22 | #include <linux/platform_device.h> |
23 | #include <linux/parport.h> |
24 | #include <linux/spinlock.h> |
25 | #include <linux/module.h> |
26 | #include <linux/delay.h> |
27 | #include <linux/slab.h> |
28 | #include <sound/core.h> |
29 | #include <sound/initval.h> |
30 | #include <sound/rawmidi.h> |
31 | #include <sound/control.h> |
32 | |
33 | #define CARD_NAME "Miditerminal 4140" |
34 | #define DRIVER_NAME "MTS64" |
35 | #define PLATFORM_DRIVER "snd_mts64" |
36 | |
37 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
38 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
39 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
40 | |
41 | static struct platform_device *platform_devices[SNDRV_CARDS]; |
42 | static int device_count; |
43 | |
44 | module_param_array(index, int, NULL, S_IRUGO); |
45 | MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); |
46 | module_param_array(id, charp, NULL, S_IRUGO); |
47 | MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); |
48 | module_param_array(enable, bool, NULL, S_IRUGO); |
49 | MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); |
50 | |
51 | MODULE_AUTHOR("Matthias Koenig <mk@phasorlab.de>"); |
52 | MODULE_DESCRIPTION("ESI Miditerminal 4140"); |
53 | MODULE_LICENSE("GPL"); |
54 | MODULE_SUPPORTED_DEVICE("{{ESI,Miditerminal 4140}}"); |
55 | |
56 | /********************************************************************* |
57 | * Chip specific |
58 | *********************************************************************/ |
59 | #define MTS64_NUM_INPUT_PORTS 5 |
60 | #define MTS64_NUM_OUTPUT_PORTS 4 |
61 | #define MTS64_SMPTE_SUBSTREAM 4 |
62 | |
63 | struct mts64 { |
64 | spinlock_t lock; |
65 | struct snd_card *card; |
66 | struct snd_rawmidi *rmidi; |
67 | struct pardevice *pardev; |
68 | int pardev_claimed; |
69 | |
70 | int open_count; |
71 | int current_midi_output_port; |
72 | int current_midi_input_port; |
73 | u8 mode[MTS64_NUM_INPUT_PORTS]; |
74 | struct snd_rawmidi_substream *midi_input_substream[MTS64_NUM_INPUT_PORTS]; |
75 | int smpte_switch; |
76 | u8 time[4]; /* [0]=hh, [1]=mm, [2]=ss, [3]=ff */ |
77 | u8 fps; |
78 | }; |
79 | |
80 | static int snd_mts64_free(struct mts64 *mts) |
81 | { |
82 | kfree(mts); |
83 | return 0; |
84 | } |
85 | |
86 | static int snd_mts64_create(struct snd_card *card, |
87 | struct pardevice *pardev, |
88 | struct mts64 **rchip) |
89 | { |
90 | struct mts64 *mts; |
91 | |
92 | *rchip = NULL; |
93 | |
94 | mts = kzalloc(sizeof(struct mts64), GFP_KERNEL); |
95 | if (mts == NULL) |
96 | return -ENOMEM; |
97 | |
98 | /* Init chip specific data */ |
99 | spin_lock_init(&mts->lock); |
100 | mts->card = card; |
101 | mts->pardev = pardev; |
102 | mts->current_midi_output_port = -1; |
103 | mts->current_midi_input_port = -1; |
104 | |
105 | *rchip = mts; |
106 | |
107 | return 0; |
108 | } |
109 | |
110 | /********************************************************************* |
111 | * HW register related constants |
112 | *********************************************************************/ |
113 | |
114 | /* Status Bits */ |
115 | #define MTS64_STAT_BSY 0x80 |
116 | #define MTS64_STAT_BIT_SET 0x20 /* readout process, bit is set */ |
117 | #define MTS64_STAT_PORT 0x10 /* read byte is a port number */ |
118 | |
119 | /* Control Bits */ |
120 | #define MTS64_CTL_READOUT 0x08 /* enable readout */ |
121 | #define MTS64_CTL_WRITE_CMD 0x06 |
122 | #define MTS64_CTL_WRITE_DATA 0x02 |
123 | #define MTS64_CTL_STROBE 0x01 |
124 | |
125 | /* Command */ |
126 | #define MTS64_CMD_RESET 0xfe |
127 | #define MTS64_CMD_PROBE 0x8f /* Used in probing procedure */ |
128 | #define MTS64_CMD_SMPTE_SET_TIME 0xe8 |
129 | #define MTS64_CMD_SMPTE_SET_FPS 0xee |
130 | #define MTS64_CMD_SMPTE_STOP 0xef |
131 | #define MTS64_CMD_SMPTE_FPS_24 0xe3 |
132 | #define MTS64_CMD_SMPTE_FPS_25 0xe2 |
133 | #define MTS64_CMD_SMPTE_FPS_2997 0xe4 |
134 | #define MTS64_CMD_SMPTE_FPS_30D 0xe1 |
135 | #define MTS64_CMD_SMPTE_FPS_30 0xe0 |
136 | #define MTS64_CMD_COM_OPEN 0xf8 /* setting the communication mode */ |
137 | #define MTS64_CMD_COM_CLOSE1 0xff /* clearing communication mode */ |
138 | #define MTS64_CMD_COM_CLOSE2 0xf5 |
139 | |
140 | /********************************************************************* |
141 | * Hardware specific functions |
142 | *********************************************************************/ |
143 | static void mts64_enable_readout(struct parport *p); |
144 | static void mts64_disable_readout(struct parport *p); |
145 | static int mts64_device_ready(struct parport *p); |
146 | static int mts64_device_init(struct parport *p); |
147 | static int mts64_device_open(struct mts64 *mts); |
148 | static int mts64_device_close(struct mts64 *mts); |
149 | static u8 mts64_map_midi_input(u8 c); |
150 | static int mts64_probe(struct parport *p); |
151 | static u16 mts64_read(struct parport *p); |
152 | static u8 mts64_read_char(struct parport *p); |
153 | static void mts64_smpte_start(struct parport *p, |
154 | u8 hours, u8 minutes, |
155 | u8 seconds, u8 frames, |
156 | u8 idx); |
157 | static void mts64_smpte_stop(struct parport *p); |
158 | static void mts64_write_command(struct parport *p, u8 c); |
159 | static void mts64_write_data(struct parport *p, u8 c); |
160 | static void mts64_write_midi(struct mts64 *mts, u8 c, int midiport); |
161 | |
162 | |
163 | /* Enables the readout procedure |
164 | * |
165 | * Before we can read a midi byte from the device, we have to set |
166 | * bit 3 of control port. |
167 | */ |
168 | static void mts64_enable_readout(struct parport *p) |
169 | { |
170 | u8 c; |
171 | |
172 | c = parport_read_control(p); |
173 | c |= MTS64_CTL_READOUT; |
174 | parport_write_control(p, c); |
175 | } |
176 | |
177 | /* Disables readout |
178 | * |
179 | * Readout is disabled by clearing bit 3 of control |
180 | */ |
181 | static void mts64_disable_readout(struct parport *p) |
182 | { |
183 | u8 c; |
184 | |
185 | c = parport_read_control(p); |
186 | c &= ~MTS64_CTL_READOUT; |
187 | parport_write_control(p, c); |
188 | } |
189 | |
190 | /* waits for device ready |
191 | * |
192 | * Checks if BUSY (Bit 7 of status) is clear |
193 | * 1 device ready |
194 | * 0 failure |
195 | */ |
196 | static int mts64_device_ready(struct parport *p) |
197 | { |
198 | int i; |
199 | u8 c; |
200 | |
201 | for (i = 0; i < 0xffff; ++i) { |
202 | c = parport_read_status(p); |
203 | c &= MTS64_STAT_BSY; |
204 | if (c != 0) |
205 | return 1; |
206 | } |
207 | |
208 | return 0; |
209 | } |
210 | |
211 | /* Init device (LED blinking startup magic) |
212 | * |
213 | * Returns: |
214 | * 0 init ok |
215 | * -EIO failure |
216 | */ |
217 | static int mts64_device_init(struct parport *p) |
218 | { |
219 | int i; |
220 | |
221 | mts64_write_command(p, MTS64_CMD_RESET); |
222 | |
223 | for (i = 0; i < 64; ++i) { |
224 | msleep(100); |
225 | |
226 | if (mts64_probe(p) == 0) { |
227 | /* success */ |
228 | mts64_disable_readout(p); |
229 | return 0; |
230 | } |
231 | } |
232 | mts64_disable_readout(p); |
233 | |
234 | return -EIO; |
235 | } |
236 | |
237 | /* |
238 | * Opens the device (set communication mode) |
239 | */ |
240 | static int mts64_device_open(struct mts64 *mts) |
241 | { |
242 | int i; |
243 | struct parport *p = mts->pardev->port; |
244 | |
245 | for (i = 0; i < 5; ++i) |
246 | mts64_write_command(p, MTS64_CMD_COM_OPEN); |
247 | |
248 | return 0; |
249 | } |
250 | |
251 | /* |
252 | * Close device (clear communication mode) |
253 | */ |
254 | static int mts64_device_close(struct mts64 *mts) |
255 | { |
256 | int i; |
257 | struct parport *p = mts->pardev->port; |
258 | |
259 | for (i = 0; i < 5; ++i) { |
260 | mts64_write_command(p, MTS64_CMD_COM_CLOSE1); |
261 | mts64_write_command(p, MTS64_CMD_COM_CLOSE2); |
262 | } |
263 | |
264 | return 0; |
265 | } |
266 | |
267 | /* map hardware port to substream number |
268 | * |
269 | * When reading a byte from the device, the device tells us |
270 | * on what port the byte is. This HW port has to be mapped to |
271 | * the midiport (substream number). |
272 | * substream 0-3 are Midiports 1-4 |
273 | * substream 4 is SMPTE Timecode |
274 | * The mapping is done by the table: |
275 | * HW | 0 | 1 | 2 | 3 | 4 |
276 | * SW | 0 | 1 | 4 | 2 | 3 |
277 | */ |
278 | static u8 mts64_map_midi_input(u8 c) |
279 | { |
280 | static u8 map[] = { 0, 1, 4, 2, 3 }; |
281 | |
282 | return map[c]; |
283 | } |
284 | |
285 | |
286 | /* Probe parport for device |
287 | * |
288 | * Do we have a Miditerminal 4140 on parport? |
289 | * Returns: |
290 | * 0 device found |
291 | * -ENODEV no device |
292 | */ |
293 | static int mts64_probe(struct parport *p) |
294 | { |
295 | u8 c; |
296 | |
297 | mts64_smpte_stop(p); |
298 | mts64_write_command(p, MTS64_CMD_PROBE); |
299 | |
300 | msleep(50); |
301 | |
302 | c = mts64_read(p); |
303 | |
304 | c &= 0x00ff; |
305 | if (c != MTS64_CMD_PROBE) |
306 | return -ENODEV; |
307 | else |
308 | return 0; |
309 | |
310 | } |
311 | |
312 | /* Read byte incl. status from device |
313 | * |
314 | * Returns: |
315 | * data in lower 8 bits and status in upper 8 bits |
316 | */ |
317 | static u16 mts64_read(struct parport *p) |
318 | { |
319 | u8 data, status; |
320 | |
321 | mts64_device_ready(p); |
322 | mts64_enable_readout(p); |
323 | status = parport_read_status(p); |
324 | data = mts64_read_char(p); |
325 | mts64_disable_readout(p); |
326 | |
327 | return (status << 8) | data; |
328 | } |
329 | |
330 | /* Read a byte from device |
331 | * |
332 | * Note, that readout mode has to be enabled. |
333 | * readout procedure is as follows: |
334 | * - Write number of the Bit to read to DATA |
335 | * - Read STATUS |
336 | * - Bit 5 of STATUS indicates if Bit is set |
337 | * |
338 | * Returns: |
339 | * Byte read from device |
340 | */ |
341 | static u8 mts64_read_char(struct parport *p) |
342 | { |
343 | u8 c = 0; |
344 | u8 status; |
345 | u8 i; |
346 | |
347 | for (i = 0; i < 8; ++i) { |
348 | parport_write_data(p, i); |
349 | c >>= 1; |
350 | status = parport_read_status(p); |
351 | if (status & MTS64_STAT_BIT_SET) |
352 | c |= 0x80; |
353 | } |
354 | |
355 | return c; |
356 | } |
357 | |
358 | /* Starts SMPTE Timecode generation |
359 | * |
360 | * The device creates SMPTE Timecode by hardware. |
361 | * 0 24 fps |
362 | * 1 25 fps |
363 | * 2 29.97 fps |
364 | * 3 30 fps (Drop-frame) |
365 | * 4 30 fps |
366 | */ |
367 | static void mts64_smpte_start(struct parport *p, |
368 | u8 hours, u8 minutes, |
369 | u8 seconds, u8 frames, |
370 | u8 idx) |
371 | { |
372 | static u8 fps[5] = { MTS64_CMD_SMPTE_FPS_24, |
373 | MTS64_CMD_SMPTE_FPS_25, |
374 | MTS64_CMD_SMPTE_FPS_2997, |
375 | MTS64_CMD_SMPTE_FPS_30D, |
376 | MTS64_CMD_SMPTE_FPS_30 }; |
377 | |
378 | mts64_write_command(p, MTS64_CMD_SMPTE_SET_TIME); |
379 | mts64_write_command(p, frames); |
380 | mts64_write_command(p, seconds); |
381 | mts64_write_command(p, minutes); |
382 | mts64_write_command(p, hours); |
383 | |
384 | mts64_write_command(p, MTS64_CMD_SMPTE_SET_FPS); |
385 | mts64_write_command(p, fps[idx]); |
386 | } |
387 | |
388 | /* Stops SMPTE Timecode generation |
389 | */ |
390 | static void mts64_smpte_stop(struct parport *p) |
391 | { |
392 | mts64_write_command(p, MTS64_CMD_SMPTE_STOP); |
393 | } |
394 | |
395 | /* Write a command byte to device |
396 | */ |
397 | static void mts64_write_command(struct parport *p, u8 c) |
398 | { |
399 | mts64_device_ready(p); |
400 | |
401 | parport_write_data(p, c); |
402 | |
403 | parport_write_control(p, MTS64_CTL_WRITE_CMD); |
404 | parport_write_control(p, MTS64_CTL_WRITE_CMD | MTS64_CTL_STROBE); |
405 | parport_write_control(p, MTS64_CTL_WRITE_CMD); |
406 | } |
407 | |
408 | /* Write a data byte to device |
409 | */ |
410 | static void mts64_write_data(struct parport *p, u8 c) |
411 | { |
412 | mts64_device_ready(p); |
413 | |
414 | parport_write_data(p, c); |
415 | |
416 | parport_write_control(p, MTS64_CTL_WRITE_DATA); |
417 | parport_write_control(p, MTS64_CTL_WRITE_DATA | MTS64_CTL_STROBE); |
418 | parport_write_control(p, MTS64_CTL_WRITE_DATA); |
419 | } |
420 | |
421 | /* Write a MIDI byte to midiport |
422 | * |
423 | * midiport ranges from 0-3 and maps to Ports 1-4 |
424 | * assumptions: communication mode is on |
425 | */ |
426 | static void mts64_write_midi(struct mts64 *mts, u8 c, |
427 | int midiport) |
428 | { |
429 | struct parport *p = mts->pardev->port; |
430 | |
431 | /* check current midiport */ |
432 | if (mts->current_midi_output_port != midiport) |
433 | mts64_write_command(p, midiport); |
434 | |
435 | /* write midi byte */ |
436 | mts64_write_data(p, c); |
437 | } |
438 | |
439 | /********************************************************************* |
440 | * Control elements |
441 | *********************************************************************/ |
442 | |
443 | /* SMPTE Switch */ |
444 | #define snd_mts64_ctl_smpte_switch_info snd_ctl_boolean_mono_info |
445 | |
446 | static int snd_mts64_ctl_smpte_switch_get(struct snd_kcontrol* kctl, |
447 | struct snd_ctl_elem_value *uctl) |
448 | { |
449 | struct mts64 *mts = snd_kcontrol_chip(kctl); |
450 | |
451 | spin_lock_irq(&mts->lock); |
452 | uctl->value.integer.value[0] = mts->smpte_switch; |
453 | spin_unlock_irq(&mts->lock); |
454 | |
455 | return 0; |
456 | } |
457 | |
458 | /* smpte_switch is not accessed from IRQ handler, so we just need |
459 | to protect the HW access */ |
460 | static int snd_mts64_ctl_smpte_switch_put(struct snd_kcontrol* kctl, |
461 | struct snd_ctl_elem_value *uctl) |
462 | { |
463 | struct mts64 *mts = snd_kcontrol_chip(kctl); |
464 | int changed = 0; |
465 | int val = !!uctl->value.integer.value[0]; |
466 | |
467 | spin_lock_irq(&mts->lock); |
468 | if (mts->smpte_switch == val) |
469 | goto __out; |
470 | |
471 | changed = 1; |
472 | mts->smpte_switch = val; |
473 | if (mts->smpte_switch) { |
474 | mts64_smpte_start(mts->pardev->port, |
475 | mts->time[0], mts->time[1], |
476 | mts->time[2], mts->time[3], |
477 | mts->fps); |
478 | } else { |
479 | mts64_smpte_stop(mts->pardev->port); |
480 | } |
481 | __out: |
482 | spin_unlock_irq(&mts->lock); |
483 | return changed; |
484 | } |
485 | |
486 | static struct snd_kcontrol_new mts64_ctl_smpte_switch = { |
487 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
488 | .name = "SMPTE Playback Switch", |
489 | .index = 0, |
490 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
491 | .private_value = 0, |
492 | .info = snd_mts64_ctl_smpte_switch_info, |
493 | .get = snd_mts64_ctl_smpte_switch_get, |
494 | .put = snd_mts64_ctl_smpte_switch_put |
495 | }; |
496 | |
497 | /* Time */ |
498 | static int snd_mts64_ctl_smpte_time_h_info(struct snd_kcontrol *kctl, |
499 | struct snd_ctl_elem_info *uinfo) |
500 | { |
501 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
502 | uinfo->count = 1; |
503 | uinfo->value.integer.min = 0; |
504 | uinfo->value.integer.max = 23; |
505 | return 0; |
506 | } |
507 | |
508 | static int snd_mts64_ctl_smpte_time_f_info(struct snd_kcontrol *kctl, |
509 | struct snd_ctl_elem_info *uinfo) |
510 | { |
511 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
512 | uinfo->count = 1; |
513 | uinfo->value.integer.min = 0; |
514 | uinfo->value.integer.max = 99; |
515 | return 0; |
516 | } |
517 | |
518 | static int snd_mts64_ctl_smpte_time_info(struct snd_kcontrol *kctl, |
519 | struct snd_ctl_elem_info *uinfo) |
520 | { |
521 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
522 | uinfo->count = 1; |
523 | uinfo->value.integer.min = 0; |
524 | uinfo->value.integer.max = 59; |
525 | return 0; |
526 | } |
527 | |
528 | static int snd_mts64_ctl_smpte_time_get(struct snd_kcontrol *kctl, |
529 | struct snd_ctl_elem_value *uctl) |
530 | { |
531 | struct mts64 *mts = snd_kcontrol_chip(kctl); |
532 | int idx = kctl->private_value; |
533 | |
534 | spin_lock_irq(&mts->lock); |
535 | uctl->value.integer.value[0] = mts->time[idx]; |
536 | spin_unlock_irq(&mts->lock); |
537 | |
538 | return 0; |
539 | } |
540 | |
541 | static int snd_mts64_ctl_smpte_time_put(struct snd_kcontrol *kctl, |
542 | struct snd_ctl_elem_value *uctl) |
543 | { |
544 | struct mts64 *mts = snd_kcontrol_chip(kctl); |
545 | int idx = kctl->private_value; |
546 | unsigned int time = uctl->value.integer.value[0] % 60; |
547 | int changed = 0; |
548 | |
549 | spin_lock_irq(&mts->lock); |
550 | if (mts->time[idx] != time) { |
551 | changed = 1; |
552 | mts->time[idx] = time; |
553 | } |
554 | spin_unlock_irq(&mts->lock); |
555 | |
556 | return changed; |
557 | } |
558 | |
559 | static struct snd_kcontrol_new mts64_ctl_smpte_time_hours = { |
560 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
561 | .name = "SMPTE Time Hours", |
562 | .index = 0, |
563 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
564 | .private_value = 0, |
565 | .info = snd_mts64_ctl_smpte_time_h_info, |
566 | .get = snd_mts64_ctl_smpte_time_get, |
567 | .put = snd_mts64_ctl_smpte_time_put |
568 | }; |
569 | |
570 | static struct snd_kcontrol_new mts64_ctl_smpte_time_minutes = { |
571 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
572 | .name = "SMPTE Time Minutes", |
573 | .index = 0, |
574 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
575 | .private_value = 1, |
576 | .info = snd_mts64_ctl_smpte_time_info, |
577 | .get = snd_mts64_ctl_smpte_time_get, |
578 | .put = snd_mts64_ctl_smpte_time_put |
579 | }; |
580 | |
581 | static struct snd_kcontrol_new mts64_ctl_smpte_time_seconds = { |
582 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
583 | .name = "SMPTE Time Seconds", |
584 | .index = 0, |
585 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
586 | .private_value = 2, |
587 | .info = snd_mts64_ctl_smpte_time_info, |
588 | .get = snd_mts64_ctl_smpte_time_get, |
589 | .put = snd_mts64_ctl_smpte_time_put |
590 | }; |
591 | |
592 | static struct snd_kcontrol_new mts64_ctl_smpte_time_frames = { |
593 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
594 | .name = "SMPTE Time Frames", |
595 | .index = 0, |
596 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
597 | .private_value = 3, |
598 | .info = snd_mts64_ctl_smpte_time_f_info, |
599 | .get = snd_mts64_ctl_smpte_time_get, |
600 | .put = snd_mts64_ctl_smpte_time_put |
601 | }; |
602 | |
603 | /* FPS */ |
604 | static int snd_mts64_ctl_smpte_fps_info(struct snd_kcontrol *kctl, |
605 | struct snd_ctl_elem_info *uinfo) |
606 | { |
607 | static char *texts[5] = { "24", |
608 | "25", |
609 | "29.97", |
610 | "30D", |
611 | "30" }; |
612 | |
613 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
614 | uinfo->count = 1; |
615 | uinfo->value.enumerated.items = 5; |
616 | if (uinfo->value.enumerated.item > 4) |
617 | uinfo->value.enumerated.item = 4; |
618 | strcpy(uinfo->value.enumerated.name, |
619 | texts[uinfo->value.enumerated.item]); |
620 | |
621 | return 0; |
622 | } |
623 | |
624 | static int snd_mts64_ctl_smpte_fps_get(struct snd_kcontrol *kctl, |
625 | struct snd_ctl_elem_value *uctl) |
626 | { |
627 | struct mts64 *mts = snd_kcontrol_chip(kctl); |
628 | |
629 | spin_lock_irq(&mts->lock); |
630 | uctl->value.enumerated.item[0] = mts->fps; |
631 | spin_unlock_irq(&mts->lock); |
632 | |
633 | return 0; |
634 | } |
635 | |
636 | static int snd_mts64_ctl_smpte_fps_put(struct snd_kcontrol *kctl, |
637 | struct snd_ctl_elem_value *uctl) |
638 | { |
639 | struct mts64 *mts = snd_kcontrol_chip(kctl); |
640 | int changed = 0; |
641 | |
642 | if (uctl->value.enumerated.item[0] >= 5) |
643 | return -EINVAL; |
644 | spin_lock_irq(&mts->lock); |
645 | if (mts->fps != uctl->value.enumerated.item[0]) { |
646 | changed = 1; |
647 | mts->fps = uctl->value.enumerated.item[0]; |
648 | } |
649 | spin_unlock_irq(&mts->lock); |
650 | |
651 | return changed; |
652 | } |
653 | |
654 | static struct snd_kcontrol_new mts64_ctl_smpte_fps = { |
655 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
656 | .name = "SMPTE Fps", |
657 | .index = 0, |
658 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
659 | .private_value = 0, |
660 | .info = snd_mts64_ctl_smpte_fps_info, |
661 | .get = snd_mts64_ctl_smpte_fps_get, |
662 | .put = snd_mts64_ctl_smpte_fps_put |
663 | }; |
664 | |
665 | |
666 | static int snd_mts64_ctl_create(struct snd_card *card, |
667 | struct mts64 *mts) |
668 | { |
669 | int err, i; |
670 | static struct snd_kcontrol_new *control[] = { |
671 | &mts64_ctl_smpte_switch, |
672 | &mts64_ctl_smpte_time_hours, |
673 | &mts64_ctl_smpte_time_minutes, |
674 | &mts64_ctl_smpte_time_seconds, |
675 | &mts64_ctl_smpte_time_frames, |
676 | &mts64_ctl_smpte_fps, |
677 | NULL }; |
678 | |
679 | for (i = 0; control[i]; ++i) { |
680 | err = snd_ctl_add(card, snd_ctl_new1(control[i], mts)); |
681 | if (err < 0) { |
682 | snd_printd("Cannot create control: %s\n", |
683 | control[i]->name); |
684 | return err; |
685 | } |
686 | } |
687 | |
688 | return 0; |
689 | } |
690 | |
691 | /********************************************************************* |
692 | * Rawmidi |
693 | *********************************************************************/ |
694 | #define MTS64_MODE_INPUT_TRIGGERED 0x01 |
695 | |
696 | static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream) |
697 | { |
698 | struct mts64 *mts = substream->rmidi->private_data; |
699 | |
700 | if (mts->open_count == 0) { |
701 | /* We don't need a spinlock here, because this is just called |
702 | if the device has not been opened before. |
703 | So there aren't any IRQs from the device */ |
704 | mts64_device_open(mts); |
705 | |
706 | msleep(50); |
707 | } |
708 | ++(mts->open_count); |
709 | |
710 | return 0; |
711 | } |
712 | |
713 | static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream) |
714 | { |
715 | struct mts64 *mts = substream->rmidi->private_data; |
716 | unsigned long flags; |
717 | |
718 | --(mts->open_count); |
719 | if (mts->open_count == 0) { |
720 | /* We need the spinlock_irqsave here because we can still |
721 | have IRQs at this point */ |
722 | spin_lock_irqsave(&mts->lock, flags); |
723 | mts64_device_close(mts); |
724 | spin_unlock_irqrestore(&mts->lock, flags); |
725 | |
726 | msleep(500); |
727 | |
728 | } else if (mts->open_count < 0) |
729 | mts->open_count = 0; |
730 | |
731 | return 0; |
732 | } |
733 | |
734 | static void snd_mts64_rawmidi_output_trigger(struct snd_rawmidi_substream *substream, |
735 | int up) |
736 | { |
737 | struct mts64 *mts = substream->rmidi->private_data; |
738 | u8 data; |
739 | unsigned long flags; |
740 | |
741 | spin_lock_irqsave(&mts->lock, flags); |
742 | while (snd_rawmidi_transmit_peek(substream, &data, 1) == 1) { |
743 | mts64_write_midi(mts, data, substream->number+1); |
744 | snd_rawmidi_transmit_ack(substream, 1); |
745 | } |
746 | spin_unlock_irqrestore(&mts->lock, flags); |
747 | } |
748 | |
749 | static void snd_mts64_rawmidi_input_trigger(struct snd_rawmidi_substream *substream, |
750 | int up) |
751 | { |
752 | struct mts64 *mts = substream->rmidi->private_data; |
753 | unsigned long flags; |
754 | |
755 | spin_lock_irqsave(&mts->lock, flags); |
756 | if (up) |
757 | mts->mode[substream->number] |= MTS64_MODE_INPUT_TRIGGERED; |
758 | else |
759 | mts->mode[substream->number] &= ~MTS64_MODE_INPUT_TRIGGERED; |
760 | |
761 | spin_unlock_irqrestore(&mts->lock, flags); |
762 | } |
763 | |
764 | static struct snd_rawmidi_ops snd_mts64_rawmidi_output_ops = { |
765 | .open = snd_mts64_rawmidi_open, |
766 | .close = snd_mts64_rawmidi_close, |
767 | .trigger = snd_mts64_rawmidi_output_trigger |
768 | }; |
769 | |
770 | static struct snd_rawmidi_ops snd_mts64_rawmidi_input_ops = { |
771 | .open = snd_mts64_rawmidi_open, |
772 | .close = snd_mts64_rawmidi_close, |
773 | .trigger = snd_mts64_rawmidi_input_trigger |
774 | }; |
775 | |
776 | /* Create and initialize the rawmidi component */ |
777 | static int snd_mts64_rawmidi_create(struct snd_card *card) |
778 | { |
779 | struct mts64 *mts = card->private_data; |
780 | struct snd_rawmidi *rmidi; |
781 | struct snd_rawmidi_substream *substream; |
782 | struct list_head *list; |
783 | int err; |
784 | |
785 | err = snd_rawmidi_new(card, CARD_NAME, 0, |
786 | MTS64_NUM_OUTPUT_PORTS, |
787 | MTS64_NUM_INPUT_PORTS, |
788 | &rmidi); |
789 | if (err < 0) |
790 | return err; |
791 | |
792 | rmidi->private_data = mts; |
793 | strcpy(rmidi->name, CARD_NAME); |
794 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | |
795 | SNDRV_RAWMIDI_INFO_INPUT | |
796 | SNDRV_RAWMIDI_INFO_DUPLEX; |
797 | |
798 | mts->rmidi = rmidi; |
799 | |
800 | /* register rawmidi ops */ |
801 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
802 | &snd_mts64_rawmidi_output_ops); |
803 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, |
804 | &snd_mts64_rawmidi_input_ops); |
805 | |
806 | /* name substreams */ |
807 | /* output */ |
808 | list_for_each(list, |
809 | &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { |
810 | substream = list_entry(list, struct snd_rawmidi_substream, list); |
811 | sprintf(substream->name, |
812 | "Miditerminal %d", substream->number+1); |
813 | } |
814 | /* input */ |
815 | list_for_each(list, |
816 | &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { |
817 | substream = list_entry(list, struct snd_rawmidi_substream, list); |
818 | mts->midi_input_substream[substream->number] = substream; |
819 | switch(substream->number) { |
820 | case MTS64_SMPTE_SUBSTREAM: |
821 | strcpy(substream->name, "Miditerminal SMPTE"); |
822 | break; |
823 | default: |
824 | sprintf(substream->name, |
825 | "Miditerminal %d", substream->number+1); |
826 | } |
827 | } |
828 | |
829 | /* controls */ |
830 | err = snd_mts64_ctl_create(card, mts); |
831 | |
832 | return err; |
833 | } |
834 | |
835 | /********************************************************************* |
836 | * parport stuff |
837 | *********************************************************************/ |
838 | static void snd_mts64_interrupt(void *private) |
839 | { |
840 | struct mts64 *mts = ((struct snd_card*)private)->private_data; |
841 | u16 ret; |
842 | u8 status, data; |
843 | struct snd_rawmidi_substream *substream; |
844 | |
845 | spin_lock(&mts->lock); |
846 | ret = mts64_read(mts->pardev->port); |
847 | data = ret & 0x00ff; |
848 | status = ret >> 8; |
849 | |
850 | if (status & MTS64_STAT_PORT) { |
851 | mts->current_midi_input_port = mts64_map_midi_input(data); |
852 | } else { |
853 | if (mts->current_midi_input_port == -1) |
854 | goto __out; |
855 | substream = mts->midi_input_substream[mts->current_midi_input_port]; |
856 | if (mts->mode[substream->number] & MTS64_MODE_INPUT_TRIGGERED) |
857 | snd_rawmidi_receive(substream, &data, 1); |
858 | } |
859 | __out: |
860 | spin_unlock(&mts->lock); |
861 | } |
862 | |
863 | static int snd_mts64_probe_port(struct parport *p) |
864 | { |
865 | struct pardevice *pardev; |
866 | int res; |
867 | |
868 | pardev = parport_register_device(p, DRIVER_NAME, |
869 | NULL, NULL, NULL, |
870 | 0, NULL); |
871 | if (!pardev) |
872 | return -EIO; |
873 | |
874 | if (parport_claim(pardev)) { |
875 | parport_unregister_device(pardev); |
876 | return -EIO; |
877 | } |
878 | |
879 | res = mts64_probe(p); |
880 | |
881 | parport_release(pardev); |
882 | parport_unregister_device(pardev); |
883 | |
884 | return res; |
885 | } |
886 | |
887 | static void snd_mts64_attach(struct parport *p) |
888 | { |
889 | struct platform_device *device; |
890 | |
891 | device = platform_device_alloc(PLATFORM_DRIVER, device_count); |
892 | if (!device) |
893 | return; |
894 | |
895 | /* Temporary assignment to forward the parport */ |
896 | platform_set_drvdata(device, p); |
897 | |
898 | if (platform_device_add(device) < 0) { |
899 | platform_device_put(device); |
900 | return; |
901 | } |
902 | |
903 | /* Since we dont get the return value of probe |
904 | * We need to check if device probing succeeded or not */ |
905 | if (!platform_get_drvdata(device)) { |
906 | platform_device_unregister(device); |
907 | return; |
908 | } |
909 | |
910 | /* register device in global table */ |
911 | platform_devices[device_count] = device; |
912 | device_count++; |
913 | } |
914 | |
915 | static void snd_mts64_detach(struct parport *p) |
916 | { |
917 | /* nothing to do here */ |
918 | } |
919 | |
920 | static struct parport_driver mts64_parport_driver = { |
921 | .name = "mts64", |
922 | .attach = snd_mts64_attach, |
923 | .detach = snd_mts64_detach |
924 | }; |
925 | |
926 | /********************************************************************* |
927 | * platform stuff |
928 | *********************************************************************/ |
929 | static void snd_mts64_card_private_free(struct snd_card *card) |
930 | { |
931 | struct mts64 *mts = card->private_data; |
932 | struct pardevice *pardev = mts->pardev; |
933 | |
934 | if (pardev) { |
935 | if (mts->pardev_claimed) |
936 | parport_release(pardev); |
937 | parport_unregister_device(pardev); |
938 | } |
939 | |
940 | snd_mts64_free(mts); |
941 | } |
942 | |
943 | static int snd_mts64_probe(struct platform_device *pdev) |
944 | { |
945 | struct pardevice *pardev; |
946 | struct parport *p; |
947 | int dev = pdev->id; |
948 | struct snd_card *card = NULL; |
949 | struct mts64 *mts = NULL; |
950 | int err; |
951 | |
952 | p = platform_get_drvdata(pdev); |
953 | platform_set_drvdata(pdev, NULL); |
954 | |
955 | if (dev >= SNDRV_CARDS) |
956 | return -ENODEV; |
957 | if (!enable[dev]) |
958 | return -ENOENT; |
959 | if ((err = snd_mts64_probe_port(p)) < 0) |
960 | return err; |
961 | |
962 | err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); |
963 | if (err < 0) { |
964 | snd_printd("Cannot create card\n"); |
965 | return err; |
966 | } |
967 | strcpy(card->driver, DRIVER_NAME); |
968 | strcpy(card->shortname, "ESI " CARD_NAME); |
969 | sprintf(card->longname, "%s at 0x%lx, irq %i", |
970 | card->shortname, p->base, p->irq); |
971 | |
972 | pardev = parport_register_device(p, /* port */ |
973 | DRIVER_NAME, /* name */ |
974 | NULL, /* preempt */ |
975 | NULL, /* wakeup */ |
976 | snd_mts64_interrupt, /* ISR */ |
977 | PARPORT_DEV_EXCL, /* flags */ |
978 | (void *)card); /* private */ |
979 | if (pardev == NULL) { |
980 | snd_printd("Cannot register pardevice\n"); |
981 | err = -EIO; |
982 | goto __err; |
983 | } |
984 | |
985 | if ((err = snd_mts64_create(card, pardev, &mts)) < 0) { |
986 | snd_printd("Cannot create main component\n"); |
987 | parport_unregister_device(pardev); |
988 | goto __err; |
989 | } |
990 | card->private_data = mts; |
991 | card->private_free = snd_mts64_card_private_free; |
992 | |
993 | if ((err = snd_mts64_rawmidi_create(card)) < 0) { |
994 | snd_printd("Creating Rawmidi component failed\n"); |
995 | goto __err; |
996 | } |
997 | |
998 | /* claim parport */ |
999 | if (parport_claim(pardev)) { |
1000 | snd_printd("Cannot claim parport 0x%lx\n", pardev->port->base); |
1001 | err = -EIO; |
1002 | goto __err; |
1003 | } |
1004 | mts->pardev_claimed = 1; |
1005 | |
1006 | /* init device */ |
1007 | if ((err = mts64_device_init(p)) < 0) |
1008 | goto __err; |
1009 | |
1010 | platform_set_drvdata(pdev, card); |
1011 | |
1012 | snd_card_set_dev(card, &pdev->dev); |
1013 | |
1014 | /* At this point card will be usable */ |
1015 | if ((err = snd_card_register(card)) < 0) { |
1016 | snd_printd("Cannot register card\n"); |
1017 | goto __err; |
1018 | } |
1019 | |
1020 | snd_printk(KERN_INFO "ESI Miditerminal 4140 on 0x%lx\n", p->base); |
1021 | return 0; |
1022 | |
1023 | __err: |
1024 | snd_card_free(card); |
1025 | return err; |
1026 | } |
1027 | |
1028 | static int snd_mts64_remove(struct platform_device *pdev) |
1029 | { |
1030 | struct snd_card *card = platform_get_drvdata(pdev); |
1031 | |
1032 | if (card) |
1033 | snd_card_free(card); |
1034 | |
1035 | return 0; |
1036 | } |
1037 | |
1038 | |
1039 | static struct platform_driver snd_mts64_driver = { |
1040 | .probe = snd_mts64_probe, |
1041 | .remove = snd_mts64_remove, |
1042 | .driver = { |
1043 | .name = PLATFORM_DRIVER, |
1044 | .owner = THIS_MODULE, |
1045 | } |
1046 | }; |
1047 | |
1048 | /********************************************************************* |
1049 | * module init stuff |
1050 | *********************************************************************/ |
1051 | static void snd_mts64_unregister_all(void) |
1052 | { |
1053 | int i; |
1054 | |
1055 | for (i = 0; i < SNDRV_CARDS; ++i) { |
1056 | if (platform_devices[i]) { |
1057 | platform_device_unregister(platform_devices[i]); |
1058 | platform_devices[i] = NULL; |
1059 | } |
1060 | } |
1061 | platform_driver_unregister(&snd_mts64_driver); |
1062 | parport_unregister_driver(&mts64_parport_driver); |
1063 | } |
1064 | |
1065 | static int __init snd_mts64_module_init(void) |
1066 | { |
1067 | int err; |
1068 | |
1069 | if ((err = platform_driver_register(&snd_mts64_driver)) < 0) |
1070 | return err; |
1071 | |
1072 | if (parport_register_driver(&mts64_parport_driver) != 0) { |
1073 | platform_driver_unregister(&snd_mts64_driver); |
1074 | return -EIO; |
1075 | } |
1076 | |
1077 | if (device_count == 0) { |
1078 | snd_mts64_unregister_all(); |
1079 | return -ENODEV; |
1080 | } |
1081 | |
1082 | return 0; |
1083 | } |
1084 | |
1085 | static void __exit snd_mts64_module_exit(void) |
1086 | { |
1087 | snd_mts64_unregister_all(); |
1088 | } |
1089 | |
1090 | module_init(snd_mts64_module_init); |
1091 | module_exit(snd_mts64_module_exit); |
1092 |
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