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fd534e9b | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
68ab801e MK |
2 | /* |
3 | * ALSA Driver for Ego Systems Inc. (ESI) Miditerminal 4140 | |
4 | * Copyright (c) 2006 by Matthias König <mk@phasorlab.de> | |
68ab801e MK |
5 | */ |
6 | ||
68ab801e MK |
7 | #include <linux/init.h> |
8 | #include <linux/platform_device.h> | |
9 | #include <linux/parport.h> | |
10 | #include <linux/spinlock.h> | |
da155d5b | 11 | #include <linux/module.h> |
68ab801e | 12 | #include <linux/delay.h> |
5a0e3ad6 | 13 | #include <linux/slab.h> |
68ab801e MK |
14 | #include <sound/core.h> |
15 | #include <sound/initval.h> | |
16 | #include <sound/rawmidi.h> | |
17 | #include <sound/control.h> | |
18 | ||
19 | #define CARD_NAME "Miditerminal 4140" | |
20 | #define DRIVER_NAME "MTS64" | |
21 | #define PLATFORM_DRIVER "snd_mts64" | |
22 | ||
23 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; | |
24 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; | |
a67ff6a5 | 25 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
68ab801e MK |
26 | |
27 | static struct platform_device *platform_devices[SNDRV_CARDS]; | |
28 | static int device_count; | |
29 | ||
6a73cf46 | 30 | module_param_array(index, int, NULL, 0444); |
68ab801e | 31 | MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); |
6a73cf46 | 32 | module_param_array(id, charp, NULL, 0444); |
68ab801e | 33 | MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); |
6a73cf46 | 34 | module_param_array(enable, bool, NULL, 0444); |
68ab801e MK |
35 | MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); |
36 | ||
37 | MODULE_AUTHOR("Matthias Koenig <mk@phasorlab.de>"); | |
38 | MODULE_DESCRIPTION("ESI Miditerminal 4140"); | |
39 | MODULE_LICENSE("GPL"); | |
68ab801e MK |
40 | |
41 | /********************************************************************* | |
42 | * Chip specific | |
43 | *********************************************************************/ | |
44 | #define MTS64_NUM_INPUT_PORTS 5 | |
45 | #define MTS64_NUM_OUTPUT_PORTS 4 | |
46 | #define MTS64_SMPTE_SUBSTREAM 4 | |
47 | ||
48 | struct mts64 { | |
49 | spinlock_t lock; | |
50 | struct snd_card *card; | |
51 | struct snd_rawmidi *rmidi; | |
52 | struct pardevice *pardev; | |
68ab801e MK |
53 | int open_count; |
54 | int current_midi_output_port; | |
55 | int current_midi_input_port; | |
56 | u8 mode[MTS64_NUM_INPUT_PORTS]; | |
57 | struct snd_rawmidi_substream *midi_input_substream[MTS64_NUM_INPUT_PORTS]; | |
58 | int smpte_switch; | |
59 | u8 time[4]; /* [0]=hh, [1]=mm, [2]=ss, [3]=ff */ | |
60 | u8 fps; | |
61 | }; | |
62 | ||
63 | static int snd_mts64_free(struct mts64 *mts) | |
64 | { | |
65 | kfree(mts); | |
66 | return 0; | |
67 | } | |
68 | ||
fbbb01a1 BP |
69 | static int snd_mts64_create(struct snd_card *card, |
70 | struct pardevice *pardev, | |
71 | struct mts64 **rchip) | |
68ab801e MK |
72 | { |
73 | struct mts64 *mts; | |
74 | ||
75 | *rchip = NULL; | |
76 | ||
77 | mts = kzalloc(sizeof(struct mts64), GFP_KERNEL); | |
78 | if (mts == NULL) | |
79 | return -ENOMEM; | |
80 | ||
81 | /* Init chip specific data */ | |
82 | spin_lock_init(&mts->lock); | |
83 | mts->card = card; | |
84 | mts->pardev = pardev; | |
85 | mts->current_midi_output_port = -1; | |
86 | mts->current_midi_input_port = -1; | |
87 | ||
88 | *rchip = mts; | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
93 | /********************************************************************* | |
94 | * HW register related constants | |
95 | *********************************************************************/ | |
96 | ||
97 | /* Status Bits */ | |
98 | #define MTS64_STAT_BSY 0x80 | |
99 | #define MTS64_STAT_BIT_SET 0x20 /* readout process, bit is set */ | |
100 | #define MTS64_STAT_PORT 0x10 /* read byte is a port number */ | |
101 | ||
102 | /* Control Bits */ | |
103 | #define MTS64_CTL_READOUT 0x08 /* enable readout */ | |
104 | #define MTS64_CTL_WRITE_CMD 0x06 | |
105 | #define MTS64_CTL_WRITE_DATA 0x02 | |
106 | #define MTS64_CTL_STROBE 0x01 | |
107 | ||
108 | /* Command */ | |
109 | #define MTS64_CMD_RESET 0xfe | |
110 | #define MTS64_CMD_PROBE 0x8f /* Used in probing procedure */ | |
111 | #define MTS64_CMD_SMPTE_SET_TIME 0xe8 | |
112 | #define MTS64_CMD_SMPTE_SET_FPS 0xee | |
113 | #define MTS64_CMD_SMPTE_STOP 0xef | |
114 | #define MTS64_CMD_SMPTE_FPS_24 0xe3 | |
115 | #define MTS64_CMD_SMPTE_FPS_25 0xe2 | |
116 | #define MTS64_CMD_SMPTE_FPS_2997 0xe4 | |
117 | #define MTS64_CMD_SMPTE_FPS_30D 0xe1 | |
118 | #define MTS64_CMD_SMPTE_FPS_30 0xe0 | |
119 | #define MTS64_CMD_COM_OPEN 0xf8 /* setting the communication mode */ | |
120 | #define MTS64_CMD_COM_CLOSE1 0xff /* clearing communication mode */ | |
121 | #define MTS64_CMD_COM_CLOSE2 0xf5 | |
122 | ||
123 | /********************************************************************* | |
124 | * Hardware specific functions | |
125 | *********************************************************************/ | |
126 | static void mts64_enable_readout(struct parport *p); | |
127 | static void mts64_disable_readout(struct parport *p); | |
128 | static int mts64_device_ready(struct parport *p); | |
129 | static int mts64_device_init(struct parport *p); | |
130 | static int mts64_device_open(struct mts64 *mts); | |
131 | static int mts64_device_close(struct mts64 *mts); | |
132 | static u8 mts64_map_midi_input(u8 c); | |
133 | static int mts64_probe(struct parport *p); | |
134 | static u16 mts64_read(struct parport *p); | |
135 | static u8 mts64_read_char(struct parport *p); | |
136 | static void mts64_smpte_start(struct parport *p, | |
137 | u8 hours, u8 minutes, | |
138 | u8 seconds, u8 frames, | |
139 | u8 idx); | |
140 | static void mts64_smpte_stop(struct parport *p); | |
141 | static void mts64_write_command(struct parport *p, u8 c); | |
142 | static void mts64_write_data(struct parport *p, u8 c); | |
143 | static void mts64_write_midi(struct mts64 *mts, u8 c, int midiport); | |
144 | ||
145 | ||
146 | /* Enables the readout procedure | |
147 | * | |
148 | * Before we can read a midi byte from the device, we have to set | |
149 | * bit 3 of control port. | |
150 | */ | |
151 | static void mts64_enable_readout(struct parport *p) | |
152 | { | |
153 | u8 c; | |
154 | ||
155 | c = parport_read_control(p); | |
156 | c |= MTS64_CTL_READOUT; | |
157 | parport_write_control(p, c); | |
158 | } | |
159 | ||
160 | /* Disables readout | |
161 | * | |
162 | * Readout is disabled by clearing bit 3 of control | |
163 | */ | |
164 | static void mts64_disable_readout(struct parport *p) | |
165 | { | |
166 | u8 c; | |
167 | ||
168 | c = parport_read_control(p); | |
169 | c &= ~MTS64_CTL_READOUT; | |
170 | parport_write_control(p, c); | |
171 | } | |
172 | ||
173 | /* waits for device ready | |
174 | * | |
175 | * Checks if BUSY (Bit 7 of status) is clear | |
176 | * 1 device ready | |
177 | * 0 failure | |
178 | */ | |
179 | static int mts64_device_ready(struct parport *p) | |
180 | { | |
181 | int i; | |
182 | u8 c; | |
183 | ||
184 | for (i = 0; i < 0xffff; ++i) { | |
185 | c = parport_read_status(p); | |
186 | c &= MTS64_STAT_BSY; | |
187 | if (c != 0) | |
188 | return 1; | |
189 | } | |
190 | ||
191 | return 0; | |
192 | } | |
193 | ||
194 | /* Init device (LED blinking startup magic) | |
195 | * | |
196 | * Returns: | |
197 | * 0 init ok | |
198 | * -EIO failure | |
199 | */ | |
fbbb01a1 | 200 | static int mts64_device_init(struct parport *p) |
68ab801e MK |
201 | { |
202 | int i; | |
203 | ||
204 | mts64_write_command(p, MTS64_CMD_RESET); | |
205 | ||
206 | for (i = 0; i < 64; ++i) { | |
207 | msleep(100); | |
208 | ||
209 | if (mts64_probe(p) == 0) { | |
210 | /* success */ | |
211 | mts64_disable_readout(p); | |
212 | return 0; | |
213 | } | |
214 | } | |
215 | mts64_disable_readout(p); | |
216 | ||
217 | return -EIO; | |
218 | } | |
219 | ||
220 | /* | |
221 | * Opens the device (set communication mode) | |
222 | */ | |
223 | static int mts64_device_open(struct mts64 *mts) | |
224 | { | |
225 | int i; | |
226 | struct parport *p = mts->pardev->port; | |
227 | ||
228 | for (i = 0; i < 5; ++i) | |
229 | mts64_write_command(p, MTS64_CMD_COM_OPEN); | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | /* | |
235 | * Close device (clear communication mode) | |
236 | */ | |
237 | static int mts64_device_close(struct mts64 *mts) | |
238 | { | |
239 | int i; | |
240 | struct parport *p = mts->pardev->port; | |
241 | ||
242 | for (i = 0; i < 5; ++i) { | |
243 | mts64_write_command(p, MTS64_CMD_COM_CLOSE1); | |
244 | mts64_write_command(p, MTS64_CMD_COM_CLOSE2); | |
245 | } | |
246 | ||
247 | return 0; | |
248 | } | |
249 | ||
250 | /* map hardware port to substream number | |
251 | * | |
252 | * When reading a byte from the device, the device tells us | |
253 | * on what port the byte is. This HW port has to be mapped to | |
254 | * the midiport (substream number). | |
255 | * substream 0-3 are Midiports 1-4 | |
256 | * substream 4 is SMPTE Timecode | |
257 | * The mapping is done by the table: | |
258 | * HW | 0 | 1 | 2 | 3 | 4 | |
259 | * SW | 0 | 1 | 4 | 2 | 3 | |
260 | */ | |
261 | static u8 mts64_map_midi_input(u8 c) | |
262 | { | |
61698698 | 263 | static const u8 map[] = { 0, 1, 4, 2, 3 }; |
68ab801e MK |
264 | |
265 | return map[c]; | |
266 | } | |
267 | ||
268 | ||
269 | /* Probe parport for device | |
270 | * | |
271 | * Do we have a Miditerminal 4140 on parport? | |
272 | * Returns: | |
273 | * 0 device found | |
274 | * -ENODEV no device | |
275 | */ | |
fbbb01a1 | 276 | static int mts64_probe(struct parport *p) |
68ab801e MK |
277 | { |
278 | u8 c; | |
279 | ||
280 | mts64_smpte_stop(p); | |
281 | mts64_write_command(p, MTS64_CMD_PROBE); | |
282 | ||
283 | msleep(50); | |
284 | ||
285 | c = mts64_read(p); | |
286 | ||
287 | c &= 0x00ff; | |
288 | if (c != MTS64_CMD_PROBE) | |
289 | return -ENODEV; | |
290 | else | |
291 | return 0; | |
292 | ||
293 | } | |
294 | ||
295 | /* Read byte incl. status from device | |
296 | * | |
297 | * Returns: | |
298 | * data in lower 8 bits and status in upper 8 bits | |
299 | */ | |
300 | static u16 mts64_read(struct parport *p) | |
301 | { | |
302 | u8 data, status; | |
303 | ||
304 | mts64_device_ready(p); | |
305 | mts64_enable_readout(p); | |
306 | status = parport_read_status(p); | |
307 | data = mts64_read_char(p); | |
308 | mts64_disable_readout(p); | |
309 | ||
310 | return (status << 8) | data; | |
311 | } | |
312 | ||
313 | /* Read a byte from device | |
314 | * | |
315 | * Note, that readout mode has to be enabled. | |
316 | * readout procedure is as follows: | |
317 | * - Write number of the Bit to read to DATA | |
318 | * - Read STATUS | |
319 | * - Bit 5 of STATUS indicates if Bit is set | |
320 | * | |
321 | * Returns: | |
322 | * Byte read from device | |
323 | */ | |
324 | static u8 mts64_read_char(struct parport *p) | |
325 | { | |
326 | u8 c = 0; | |
327 | u8 status; | |
328 | u8 i; | |
329 | ||
330 | for (i = 0; i < 8; ++i) { | |
331 | parport_write_data(p, i); | |
332 | c >>= 1; | |
333 | status = parport_read_status(p); | |
334 | if (status & MTS64_STAT_BIT_SET) | |
335 | c |= 0x80; | |
336 | } | |
337 | ||
338 | return c; | |
339 | } | |
340 | ||
341 | /* Starts SMPTE Timecode generation | |
342 | * | |
343 | * The device creates SMPTE Timecode by hardware. | |
344 | * 0 24 fps | |
345 | * 1 25 fps | |
346 | * 2 29.97 fps | |
347 | * 3 30 fps (Drop-frame) | |
348 | * 4 30 fps | |
349 | */ | |
350 | static void mts64_smpte_start(struct parport *p, | |
351 | u8 hours, u8 minutes, | |
352 | u8 seconds, u8 frames, | |
353 | u8 idx) | |
354 | { | |
61698698 | 355 | static const u8 fps[5] = { MTS64_CMD_SMPTE_FPS_24, |
68ab801e MK |
356 | MTS64_CMD_SMPTE_FPS_25, |
357 | MTS64_CMD_SMPTE_FPS_2997, | |
358 | MTS64_CMD_SMPTE_FPS_30D, | |
359 | MTS64_CMD_SMPTE_FPS_30 }; | |
360 | ||
361 | mts64_write_command(p, MTS64_CMD_SMPTE_SET_TIME); | |
362 | mts64_write_command(p, frames); | |
363 | mts64_write_command(p, seconds); | |
364 | mts64_write_command(p, minutes); | |
365 | mts64_write_command(p, hours); | |
366 | ||
367 | mts64_write_command(p, MTS64_CMD_SMPTE_SET_FPS); | |
368 | mts64_write_command(p, fps[idx]); | |
369 | } | |
370 | ||
371 | /* Stops SMPTE Timecode generation | |
372 | */ | |
373 | static void mts64_smpte_stop(struct parport *p) | |
374 | { | |
375 | mts64_write_command(p, MTS64_CMD_SMPTE_STOP); | |
376 | } | |
377 | ||
378 | /* Write a command byte to device | |
379 | */ | |
380 | static void mts64_write_command(struct parport *p, u8 c) | |
381 | { | |
382 | mts64_device_ready(p); | |
383 | ||
384 | parport_write_data(p, c); | |
385 | ||
386 | parport_write_control(p, MTS64_CTL_WRITE_CMD); | |
387 | parport_write_control(p, MTS64_CTL_WRITE_CMD | MTS64_CTL_STROBE); | |
388 | parport_write_control(p, MTS64_CTL_WRITE_CMD); | |
389 | } | |
390 | ||
391 | /* Write a data byte to device | |
392 | */ | |
393 | static void mts64_write_data(struct parport *p, u8 c) | |
394 | { | |
395 | mts64_device_ready(p); | |
396 | ||
397 | parport_write_data(p, c); | |
398 | ||
399 | parport_write_control(p, MTS64_CTL_WRITE_DATA); | |
400 | parport_write_control(p, MTS64_CTL_WRITE_DATA | MTS64_CTL_STROBE); | |
401 | parport_write_control(p, MTS64_CTL_WRITE_DATA); | |
402 | } | |
403 | ||
404 | /* Write a MIDI byte to midiport | |
405 | * | |
406 | * midiport ranges from 0-3 and maps to Ports 1-4 | |
407 | * assumptions: communication mode is on | |
408 | */ | |
409 | static void mts64_write_midi(struct mts64 *mts, u8 c, | |
410 | int midiport) | |
411 | { | |
412 | struct parport *p = mts->pardev->port; | |
413 | ||
414 | /* check current midiport */ | |
415 | if (mts->current_midi_output_port != midiport) | |
416 | mts64_write_command(p, midiport); | |
417 | ||
418 | /* write midi byte */ | |
419 | mts64_write_data(p, c); | |
420 | } | |
421 | ||
422 | /********************************************************************* | |
423 | * Control elements | |
424 | *********************************************************************/ | |
425 | ||
426 | /* SMPTE Switch */ | |
a5ce8890 | 427 | #define snd_mts64_ctl_smpte_switch_info snd_ctl_boolean_mono_info |
68ab801e MK |
428 | |
429 | static int snd_mts64_ctl_smpte_switch_get(struct snd_kcontrol* kctl, | |
430 | struct snd_ctl_elem_value *uctl) | |
431 | { | |
432 | struct mts64 *mts = snd_kcontrol_chip(kctl); | |
433 | ||
434 | spin_lock_irq(&mts->lock); | |
435 | uctl->value.integer.value[0] = mts->smpte_switch; | |
436 | spin_unlock_irq(&mts->lock); | |
437 | ||
438 | return 0; | |
439 | } | |
440 | ||
441 | /* smpte_switch is not accessed from IRQ handler, so we just need | |
442 | to protect the HW access */ | |
443 | static int snd_mts64_ctl_smpte_switch_put(struct snd_kcontrol* kctl, | |
444 | struct snd_ctl_elem_value *uctl) | |
445 | { | |
446 | struct mts64 *mts = snd_kcontrol_chip(kctl); | |
447 | int changed = 0; | |
3b892467 | 448 | int val = !!uctl->value.integer.value[0]; |
68ab801e MK |
449 | |
450 | spin_lock_irq(&mts->lock); | |
3b892467 | 451 | if (mts->smpte_switch == val) |
68ab801e MK |
452 | goto __out; |
453 | ||
454 | changed = 1; | |
3b892467 | 455 | mts->smpte_switch = val; |
68ab801e MK |
456 | if (mts->smpte_switch) { |
457 | mts64_smpte_start(mts->pardev->port, | |
458 | mts->time[0], mts->time[1], | |
459 | mts->time[2], mts->time[3], | |
460 | mts->fps); | |
461 | } else { | |
462 | mts64_smpte_stop(mts->pardev->port); | |
463 | } | |
464 | __out: | |
465 | spin_unlock_irq(&mts->lock); | |
466 | return changed; | |
467 | } | |
468 | ||
2eccd408 | 469 | static const struct snd_kcontrol_new mts64_ctl_smpte_switch = { |
68ab801e MK |
470 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
471 | .name = "SMPTE Playback Switch", | |
472 | .index = 0, | |
473 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
474 | .private_value = 0, | |
475 | .info = snd_mts64_ctl_smpte_switch_info, | |
476 | .get = snd_mts64_ctl_smpte_switch_get, | |
477 | .put = snd_mts64_ctl_smpte_switch_put | |
478 | }; | |
479 | ||
480 | /* Time */ | |
481 | static int snd_mts64_ctl_smpte_time_h_info(struct snd_kcontrol *kctl, | |
482 | struct snd_ctl_elem_info *uinfo) | |
483 | { | |
484 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
485 | uinfo->count = 1; | |
486 | uinfo->value.integer.min = 0; | |
487 | uinfo->value.integer.max = 23; | |
488 | return 0; | |
489 | } | |
490 | ||
491 | static int snd_mts64_ctl_smpte_time_f_info(struct snd_kcontrol *kctl, | |
492 | struct snd_ctl_elem_info *uinfo) | |
493 | { | |
494 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
495 | uinfo->count = 1; | |
496 | uinfo->value.integer.min = 0; | |
497 | uinfo->value.integer.max = 99; | |
498 | return 0; | |
499 | } | |
500 | ||
501 | static int snd_mts64_ctl_smpte_time_info(struct snd_kcontrol *kctl, | |
502 | struct snd_ctl_elem_info *uinfo) | |
503 | { | |
504 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
505 | uinfo->count = 1; | |
506 | uinfo->value.integer.min = 0; | |
507 | uinfo->value.integer.max = 59; | |
508 | return 0; | |
509 | } | |
510 | ||
511 | static int snd_mts64_ctl_smpte_time_get(struct snd_kcontrol *kctl, | |
512 | struct snd_ctl_elem_value *uctl) | |
513 | { | |
514 | struct mts64 *mts = snd_kcontrol_chip(kctl); | |
515 | int idx = kctl->private_value; | |
516 | ||
517 | spin_lock_irq(&mts->lock); | |
518 | uctl->value.integer.value[0] = mts->time[idx]; | |
519 | spin_unlock_irq(&mts->lock); | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
524 | static int snd_mts64_ctl_smpte_time_put(struct snd_kcontrol *kctl, | |
525 | struct snd_ctl_elem_value *uctl) | |
526 | { | |
527 | struct mts64 *mts = snd_kcontrol_chip(kctl); | |
528 | int idx = kctl->private_value; | |
3b892467 | 529 | unsigned int time = uctl->value.integer.value[0] % 60; |
68ab801e MK |
530 | int changed = 0; |
531 | ||
532 | spin_lock_irq(&mts->lock); | |
3b892467 | 533 | if (mts->time[idx] != time) { |
68ab801e | 534 | changed = 1; |
3b892467 | 535 | mts->time[idx] = time; |
68ab801e MK |
536 | } |
537 | spin_unlock_irq(&mts->lock); | |
538 | ||
539 | return changed; | |
540 | } | |
541 | ||
2eccd408 | 542 | static const struct snd_kcontrol_new mts64_ctl_smpte_time_hours = { |
68ab801e MK |
543 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
544 | .name = "SMPTE Time Hours", | |
545 | .index = 0, | |
546 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
547 | .private_value = 0, | |
548 | .info = snd_mts64_ctl_smpte_time_h_info, | |
549 | .get = snd_mts64_ctl_smpte_time_get, | |
550 | .put = snd_mts64_ctl_smpte_time_put | |
551 | }; | |
552 | ||
2eccd408 | 553 | static const struct snd_kcontrol_new mts64_ctl_smpte_time_minutes = { |
68ab801e MK |
554 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
555 | .name = "SMPTE Time Minutes", | |
556 | .index = 0, | |
557 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
558 | .private_value = 1, | |
559 | .info = snd_mts64_ctl_smpte_time_info, | |
560 | .get = snd_mts64_ctl_smpte_time_get, | |
561 | .put = snd_mts64_ctl_smpte_time_put | |
562 | }; | |
563 | ||
2eccd408 | 564 | static const struct snd_kcontrol_new mts64_ctl_smpte_time_seconds = { |
68ab801e MK |
565 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
566 | .name = "SMPTE Time Seconds", | |
567 | .index = 0, | |
568 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
569 | .private_value = 2, | |
570 | .info = snd_mts64_ctl_smpte_time_info, | |
571 | .get = snd_mts64_ctl_smpte_time_get, | |
572 | .put = snd_mts64_ctl_smpte_time_put | |
573 | }; | |
574 | ||
2eccd408 | 575 | static const struct snd_kcontrol_new mts64_ctl_smpte_time_frames = { |
68ab801e MK |
576 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
577 | .name = "SMPTE Time Frames", | |
578 | .index = 0, | |
579 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
580 | .private_value = 3, | |
581 | .info = snd_mts64_ctl_smpte_time_f_info, | |
582 | .get = snd_mts64_ctl_smpte_time_get, | |
583 | .put = snd_mts64_ctl_smpte_time_put | |
584 | }; | |
585 | ||
586 | /* FPS */ | |
587 | static int snd_mts64_ctl_smpte_fps_info(struct snd_kcontrol *kctl, | |
588 | struct snd_ctl_elem_info *uinfo) | |
589 | { | |
6d416f59 TI |
590 | static const char * const texts[5] = { |
591 | "24", "25", "29.97", "30D", "30" | |
592 | }; | |
68ab801e | 593 | |
6d416f59 | 594 | return snd_ctl_enum_info(uinfo, 1, 5, texts); |
68ab801e MK |
595 | } |
596 | ||
597 | static int snd_mts64_ctl_smpte_fps_get(struct snd_kcontrol *kctl, | |
598 | struct snd_ctl_elem_value *uctl) | |
599 | { | |
600 | struct mts64 *mts = snd_kcontrol_chip(kctl); | |
601 | ||
602 | spin_lock_irq(&mts->lock); | |
603 | uctl->value.enumerated.item[0] = mts->fps; | |
604 | spin_unlock_irq(&mts->lock); | |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
609 | static int snd_mts64_ctl_smpte_fps_put(struct snd_kcontrol *kctl, | |
610 | struct snd_ctl_elem_value *uctl) | |
611 | { | |
612 | struct mts64 *mts = snd_kcontrol_chip(kctl); | |
613 | int changed = 0; | |
614 | ||
3b892467 TI |
615 | if (uctl->value.enumerated.item[0] >= 5) |
616 | return -EINVAL; | |
68ab801e MK |
617 | spin_lock_irq(&mts->lock); |
618 | if (mts->fps != uctl->value.enumerated.item[0]) { | |
619 | changed = 1; | |
620 | mts->fps = uctl->value.enumerated.item[0]; | |
621 | } | |
622 | spin_unlock_irq(&mts->lock); | |
623 | ||
624 | return changed; | |
625 | } | |
626 | ||
2eccd408 | 627 | static const struct snd_kcontrol_new mts64_ctl_smpte_fps = { |
68ab801e MK |
628 | .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI, |
629 | .name = "SMPTE Fps", | |
630 | .index = 0, | |
631 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
632 | .private_value = 0, | |
633 | .info = snd_mts64_ctl_smpte_fps_info, | |
634 | .get = snd_mts64_ctl_smpte_fps_get, | |
635 | .put = snd_mts64_ctl_smpte_fps_put | |
636 | }; | |
637 | ||
638 | ||
fbbb01a1 BP |
639 | static int snd_mts64_ctl_create(struct snd_card *card, |
640 | struct mts64 *mts) | |
68ab801e MK |
641 | { |
642 | int err, i; | |
2eccd408 | 643 | static const struct snd_kcontrol_new *control[] = { |
68ab801e MK |
644 | &mts64_ctl_smpte_switch, |
645 | &mts64_ctl_smpte_time_hours, | |
646 | &mts64_ctl_smpte_time_minutes, | |
647 | &mts64_ctl_smpte_time_seconds, | |
648 | &mts64_ctl_smpte_time_frames, | |
649 | &mts64_ctl_smpte_fps, | |
ae97dd9a | 650 | NULL }; |
68ab801e MK |
651 | |
652 | for (i = 0; control[i]; ++i) { | |
653 | err = snd_ctl_add(card, snd_ctl_new1(control[i], mts)); | |
654 | if (err < 0) { | |
655 | snd_printd("Cannot create control: %s\n", | |
656 | control[i]->name); | |
657 | return err; | |
658 | } | |
659 | } | |
660 | ||
661 | return 0; | |
662 | } | |
663 | ||
664 | /********************************************************************* | |
665 | * Rawmidi | |
666 | *********************************************************************/ | |
667 | #define MTS64_MODE_INPUT_TRIGGERED 0x01 | |
668 | ||
669 | static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream) | |
670 | { | |
671 | struct mts64 *mts = substream->rmidi->private_data; | |
672 | ||
673 | if (mts->open_count == 0) { | |
674 | /* We don't need a spinlock here, because this is just called | |
675 | if the device has not been opened before. | |
676 | So there aren't any IRQs from the device */ | |
677 | mts64_device_open(mts); | |
678 | ||
679 | msleep(50); | |
680 | } | |
681 | ++(mts->open_count); | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
686 | static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream) | |
687 | { | |
688 | struct mts64 *mts = substream->rmidi->private_data; | |
689 | unsigned long flags; | |
690 | ||
691 | --(mts->open_count); | |
692 | if (mts->open_count == 0) { | |
693 | /* We need the spinlock_irqsave here because we can still | |
694 | have IRQs at this point */ | |
695 | spin_lock_irqsave(&mts->lock, flags); | |
696 | mts64_device_close(mts); | |
697 | spin_unlock_irqrestore(&mts->lock, flags); | |
698 | ||
699 | msleep(500); | |
700 | ||
701 | } else if (mts->open_count < 0) | |
702 | mts->open_count = 0; | |
703 | ||
704 | return 0; | |
705 | } | |
706 | ||
707 | static void snd_mts64_rawmidi_output_trigger(struct snd_rawmidi_substream *substream, | |
708 | int up) | |
709 | { | |
710 | struct mts64 *mts = substream->rmidi->private_data; | |
711 | u8 data; | |
712 | unsigned long flags; | |
713 | ||
714 | spin_lock_irqsave(&mts->lock, flags); | |
715 | while (snd_rawmidi_transmit_peek(substream, &data, 1) == 1) { | |
716 | mts64_write_midi(mts, data, substream->number+1); | |
717 | snd_rawmidi_transmit_ack(substream, 1); | |
718 | } | |
719 | spin_unlock_irqrestore(&mts->lock, flags); | |
720 | } | |
721 | ||
722 | static void snd_mts64_rawmidi_input_trigger(struct snd_rawmidi_substream *substream, | |
723 | int up) | |
724 | { | |
725 | struct mts64 *mts = substream->rmidi->private_data; | |
726 | unsigned long flags; | |
727 | ||
728 | spin_lock_irqsave(&mts->lock, flags); | |
729 | if (up) | |
730 | mts->mode[substream->number] |= MTS64_MODE_INPUT_TRIGGERED; | |
731 | else | |
732 | mts->mode[substream->number] &= ~MTS64_MODE_INPUT_TRIGGERED; | |
733 | ||
734 | spin_unlock_irqrestore(&mts->lock, flags); | |
735 | } | |
736 | ||
c36f486d | 737 | static const struct snd_rawmidi_ops snd_mts64_rawmidi_output_ops = { |
68ab801e MK |
738 | .open = snd_mts64_rawmidi_open, |
739 | .close = snd_mts64_rawmidi_close, | |
740 | .trigger = snd_mts64_rawmidi_output_trigger | |
741 | }; | |
742 | ||
c36f486d | 743 | static const struct snd_rawmidi_ops snd_mts64_rawmidi_input_ops = { |
68ab801e MK |
744 | .open = snd_mts64_rawmidi_open, |
745 | .close = snd_mts64_rawmidi_close, | |
746 | .trigger = snd_mts64_rawmidi_input_trigger | |
747 | }; | |
748 | ||
749 | /* Create and initialize the rawmidi component */ | |
fbbb01a1 | 750 | static int snd_mts64_rawmidi_create(struct snd_card *card) |
68ab801e MK |
751 | { |
752 | struct mts64 *mts = card->private_data; | |
753 | struct snd_rawmidi *rmidi; | |
754 | struct snd_rawmidi_substream *substream; | |
755 | struct list_head *list; | |
756 | int err; | |
757 | ||
758 | err = snd_rawmidi_new(card, CARD_NAME, 0, | |
759 | MTS64_NUM_OUTPUT_PORTS, | |
760 | MTS64_NUM_INPUT_PORTS, | |
761 | &rmidi); | |
762 | if (err < 0) | |
763 | return err; | |
764 | ||
765 | rmidi->private_data = mts; | |
766 | strcpy(rmidi->name, CARD_NAME); | |
767 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | | |
768 | SNDRV_RAWMIDI_INFO_INPUT | | |
769 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
770 | ||
771 | mts->rmidi = rmidi; | |
772 | ||
773 | /* register rawmidi ops */ | |
774 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, | |
775 | &snd_mts64_rawmidi_output_ops); | |
776 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, | |
777 | &snd_mts64_rawmidi_input_ops); | |
778 | ||
779 | /* name substreams */ | |
780 | /* output */ | |
781 | list_for_each(list, | |
782 | &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { | |
783 | substream = list_entry(list, struct snd_rawmidi_substream, list); | |
784 | sprintf(substream->name, | |
785 | "Miditerminal %d", substream->number+1); | |
786 | } | |
787 | /* input */ | |
788 | list_for_each(list, | |
789 | &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { | |
790 | substream = list_entry(list, struct snd_rawmidi_substream, list); | |
791 | mts->midi_input_substream[substream->number] = substream; | |
792 | switch(substream->number) { | |
793 | case MTS64_SMPTE_SUBSTREAM: | |
794 | strcpy(substream->name, "Miditerminal SMPTE"); | |
795 | break; | |
796 | default: | |
797 | sprintf(substream->name, | |
798 | "Miditerminal %d", substream->number+1); | |
799 | } | |
800 | } | |
801 | ||
802 | /* controls */ | |
803 | err = snd_mts64_ctl_create(card, mts); | |
804 | ||
805 | return err; | |
806 | } | |
807 | ||
808 | /********************************************************************* | |
809 | * parport stuff | |
810 | *********************************************************************/ | |
5712cb3d | 811 | static void snd_mts64_interrupt(void *private) |
68ab801e MK |
812 | { |
813 | struct mts64 *mts = ((struct snd_card*)private)->private_data; | |
814 | u16 ret; | |
815 | u8 status, data; | |
816 | struct snd_rawmidi_substream *substream; | |
817 | ||
cf2ea3c8 GC |
818 | if (!mts) |
819 | return; | |
820 | ||
68ab801e MK |
821 | spin_lock(&mts->lock); |
822 | ret = mts64_read(mts->pardev->port); | |
823 | data = ret & 0x00ff; | |
824 | status = ret >> 8; | |
825 | ||
826 | if (status & MTS64_STAT_PORT) { | |
827 | mts->current_midi_input_port = mts64_map_midi_input(data); | |
828 | } else { | |
829 | if (mts->current_midi_input_port == -1) | |
830 | goto __out; | |
831 | substream = mts->midi_input_substream[mts->current_midi_input_port]; | |
832 | if (mts->mode[substream->number] & MTS64_MODE_INPUT_TRIGGERED) | |
833 | snd_rawmidi_receive(substream, &data, 1); | |
834 | } | |
835 | __out: | |
836 | spin_unlock(&mts->lock); | |
837 | } | |
838 | ||
fbbb01a1 | 839 | static void snd_mts64_attach(struct parport *p) |
68ab801e MK |
840 | { |
841 | struct platform_device *device; | |
842 | ||
843 | device = platform_device_alloc(PLATFORM_DRIVER, device_count); | |
479ef436 | 844 | if (!device) |
68ab801e MK |
845 | return; |
846 | ||
847 | /* Temporary assignment to forward the parport */ | |
848 | platform_set_drvdata(device, p); | |
849 | ||
479ef436 | 850 | if (platform_device_add(device) < 0) { |
68ab801e MK |
851 | platform_device_put(device); |
852 | return; | |
853 | } | |
854 | ||
855 | /* Since we dont get the return value of probe | |
856 | * We need to check if device probing succeeded or not */ | |
857 | if (!platform_get_drvdata(device)) { | |
858 | platform_device_unregister(device); | |
859 | return; | |
860 | } | |
861 | ||
862 | /* register device in global table */ | |
863 | platform_devices[device_count] = device; | |
864 | device_count++; | |
865 | } | |
866 | ||
867 | static void snd_mts64_detach(struct parport *p) | |
868 | { | |
869 | /* nothing to do here */ | |
870 | } | |
871 | ||
94a57350 SM |
872 | static int snd_mts64_dev_probe(struct pardevice *pardev) |
873 | { | |
874 | if (strcmp(pardev->name, DRIVER_NAME)) | |
875 | return -ENODEV; | |
876 | ||
877 | return 0; | |
878 | } | |
879 | ||
68ab801e | 880 | static struct parport_driver mts64_parport_driver = { |
94a57350 SM |
881 | .name = "mts64", |
882 | .probe = snd_mts64_dev_probe, | |
883 | .match_port = snd_mts64_attach, | |
884 | .detach = snd_mts64_detach, | |
885 | .devmodel = true, | |
68ab801e MK |
886 | }; |
887 | ||
888 | /********************************************************************* | |
889 | * platform stuff | |
890 | *********************************************************************/ | |
891 | static void snd_mts64_card_private_free(struct snd_card *card) | |
892 | { | |
893 | struct mts64 *mts = card->private_data; | |
894 | struct pardevice *pardev = mts->pardev; | |
895 | ||
896 | if (pardev) { | |
94a57350 | 897 | parport_release(pardev); |
68ab801e MK |
898 | parport_unregister_device(pardev); |
899 | } | |
900 | ||
901 | snd_mts64_free(mts); | |
902 | } | |
903 | ||
fbbb01a1 | 904 | static int snd_mts64_probe(struct platform_device *pdev) |
68ab801e MK |
905 | { |
906 | struct pardevice *pardev; | |
907 | struct parport *p; | |
908 | int dev = pdev->id; | |
909 | struct snd_card *card = NULL; | |
910 | struct mts64 *mts = NULL; | |
911 | int err; | |
94a57350 SM |
912 | struct pardev_cb mts64_cb = { |
913 | .preempt = NULL, | |
914 | .wakeup = NULL, | |
915 | .irq_func = snd_mts64_interrupt, /* ISR */ | |
916 | .flags = PARPORT_DEV_EXCL, /* flags */ | |
917 | }; | |
68ab801e MK |
918 | |
919 | p = platform_get_drvdata(pdev); | |
920 | platform_set_drvdata(pdev, NULL); | |
921 | ||
922 | if (dev >= SNDRV_CARDS) | |
923 | return -ENODEV; | |
924 | if (!enable[dev]) | |
925 | return -ENOENT; | |
68ab801e | 926 | |
5872f3f6 TI |
927 | err = snd_card_new(&pdev->dev, index[dev], id[dev], THIS_MODULE, |
928 | 0, &card); | |
bd7dd77c | 929 | if (err < 0) { |
68ab801e | 930 | snd_printd("Cannot create card\n"); |
bd7dd77c | 931 | return err; |
68ab801e MK |
932 | } |
933 | strcpy(card->driver, DRIVER_NAME); | |
934 | strcpy(card->shortname, "ESI " CARD_NAME); | |
935 | sprintf(card->longname, "%s at 0x%lx, irq %i", | |
936 | card->shortname, p->base, p->irq); | |
937 | ||
94a57350 SM |
938 | mts64_cb.private = card; /* private */ |
939 | pardev = parport_register_dev_model(p, /* port */ | |
940 | DRIVER_NAME, /* name */ | |
941 | &mts64_cb, /* callbacks */ | |
942 | pdev->id); /* device number */ | |
943 | if (!pardev) { | |
68ab801e MK |
944 | snd_printd("Cannot register pardevice\n"); |
945 | err = -EIO; | |
946 | goto __err; | |
947 | } | |
948 | ||
94a57350 SM |
949 | /* claim parport */ |
950 | if (parport_claim(pardev)) { | |
951 | snd_printd("Cannot claim parport 0x%lx\n", pardev->port->base); | |
952 | err = -EIO; | |
953 | goto free_pardev; | |
954 | } | |
94a57350 | 955 | |
d0ad13ef TI |
956 | err = snd_mts64_create(card, pardev, &mts); |
957 | if (err < 0) { | |
68ab801e | 958 | snd_printd("Cannot create main component\n"); |
94a57350 | 959 | goto release_pardev; |
68ab801e MK |
960 | } |
961 | card->private_data = mts; | |
962 | card->private_free = snd_mts64_card_private_free; | |
0bbf7e02 SM |
963 | |
964 | err = mts64_probe(p); | |
965 | if (err) { | |
966 | err = -EIO; | |
967 | goto __err; | |
968 | } | |
68ab801e | 969 | |
d0ad13ef TI |
970 | err = snd_mts64_rawmidi_create(card); |
971 | if (err < 0) { | |
68ab801e MK |
972 | snd_printd("Creating Rawmidi component failed\n"); |
973 | goto __err; | |
974 | } | |
975 | ||
68ab801e | 976 | /* init device */ |
d0ad13ef TI |
977 | err = mts64_device_init(p); |
978 | if (err < 0) | |
68ab801e MK |
979 | goto __err; |
980 | ||
981 | platform_set_drvdata(pdev, card); | |
982 | ||
983 | /* At this point card will be usable */ | |
d0ad13ef TI |
984 | err = snd_card_register(card); |
985 | if (err < 0) { | |
68ab801e MK |
986 | snd_printd("Cannot register card\n"); |
987 | goto __err; | |
988 | } | |
989 | ||
45203832 | 990 | snd_printk(KERN_INFO "ESI Miditerminal 4140 on 0x%lx\n", p->base); |
68ab801e MK |
991 | return 0; |
992 | ||
94a57350 SM |
993 | release_pardev: |
994 | parport_release(pardev); | |
995 | free_pardev: | |
996 | parport_unregister_device(pardev); | |
68ab801e MK |
997 | __err: |
998 | snd_card_free(card); | |
999 | return err; | |
1000 | } | |
1001 | ||
fbbb01a1 | 1002 | static int snd_mts64_remove(struct platform_device *pdev) |
68ab801e MK |
1003 | { |
1004 | struct snd_card *card = platform_get_drvdata(pdev); | |
1005 | ||
1006 | if (card) | |
1007 | snd_card_free(card); | |
1008 | ||
1009 | return 0; | |
1010 | } | |
1011 | ||
68ab801e MK |
1012 | static struct platform_driver snd_mts64_driver = { |
1013 | .probe = snd_mts64_probe, | |
fbbb01a1 | 1014 | .remove = snd_mts64_remove, |
68ab801e | 1015 | .driver = { |
8bf01d8a | 1016 | .name = PLATFORM_DRIVER, |
68ab801e MK |
1017 | } |
1018 | }; | |
1019 | ||
1020 | /********************************************************************* | |
1021 | * module init stuff | |
1022 | *********************************************************************/ | |
10c86be5 | 1023 | static void snd_mts64_unregister_all(void) |
68ab801e MK |
1024 | { |
1025 | int i; | |
1026 | ||
1027 | for (i = 0; i < SNDRV_CARDS; ++i) { | |
1028 | if (platform_devices[i]) { | |
1029 | platform_device_unregister(platform_devices[i]); | |
1030 | platform_devices[i] = NULL; | |
1031 | } | |
1032 | } | |
1033 | platform_driver_unregister(&snd_mts64_driver); | |
1034 | parport_unregister_driver(&mts64_parport_driver); | |
1035 | } | |
1036 | ||
1037 | static int __init snd_mts64_module_init(void) | |
1038 | { | |
1039 | int err; | |
1040 | ||
d0ad13ef TI |
1041 | err = platform_driver_register(&snd_mts64_driver); |
1042 | if (err < 0) | |
68ab801e MK |
1043 | return err; |
1044 | ||
1045 | if (parport_register_driver(&mts64_parport_driver) != 0) { | |
1046 | platform_driver_unregister(&snd_mts64_driver); | |
1047 | return -EIO; | |
1048 | } | |
1049 | ||
1050 | if (device_count == 0) { | |
1051 | snd_mts64_unregister_all(); | |
1052 | return -ENODEV; | |
1053 | } | |
1054 | ||
1055 | return 0; | |
1056 | } | |
1057 | ||
1058 | static void __exit snd_mts64_module_exit(void) | |
1059 | { | |
1060 | snd_mts64_unregister_all(); | |
1061 | } | |
1062 | ||
1063 | module_init(snd_mts64_module_init); | |
1064 | module_exit(snd_mts64_module_exit); |