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