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Commit | Line | Data |
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3a370ca1 DP |
1 | /* |
2 | * HID driver for the Prodikeys PC-MIDI Keyboard | |
3 | * providing midi & extra multimedia keys functionality | |
4 | * | |
5 | * Copyright (c) 2009 Don Prince <dhprince.devel@yahoo.co.uk> | |
6 | * | |
7 | * Controls for Octave Shift Up/Down, Channel, and | |
8 | * Sustain Duration available via sysfs. | |
9 | * | |
10 | */ | |
11 | ||
12 | /* | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the Free | |
15 | * Software Foundation; either version 2 of the License, or (at your option) | |
16 | * any later version. | |
17 | */ | |
18 | ||
4291ee30 JP |
19 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
20 | ||
3a370ca1 DP |
21 | #include <linux/device.h> |
22 | #include <linux/module.h> | |
23 | #include <linux/usb.h> | |
24 | #include <linux/mutex.h> | |
25 | #include <linux/hid.h> | |
26 | #include <sound/core.h> | |
27 | #include <sound/initval.h> | |
28 | #include <sound/rawmidi.h> | |
3a370ca1 DP |
29 | #include "hid-ids.h" |
30 | ||
31 | ||
32 | #define pk_debug(format, arg...) \ | |
33 | pr_debug("hid-prodikeys: " format "\n" , ## arg) | |
34 | #define pk_error(format, arg...) \ | |
35 | pr_err("hid-prodikeys: " format "\n" , ## arg) | |
36 | ||
37 | struct pcmidi_snd; | |
38 | ||
39 | struct pk_device { | |
40 | unsigned long quirks; | |
41 | ||
42 | struct hid_device *hdev; | |
43 | struct pcmidi_snd *pm; /* pcmidi device context */ | |
44 | }; | |
45 | ||
3a370ca1 DP |
46 | struct pcmidi_sustain { |
47 | unsigned long in_use; | |
48 | struct pcmidi_snd *pm; | |
49 | struct timer_list timer; | |
50 | unsigned char status; | |
51 | unsigned char note; | |
52 | unsigned char velocity; | |
53 | }; | |
54 | ||
55 | #define PCMIDI_SUSTAINED_MAX 32 | |
56 | struct pcmidi_snd { | |
57 | struct pk_device *pk; | |
58 | unsigned short ifnum; | |
59 | struct hid_report *pcmidi_report6; | |
60 | struct input_dev *input_ep82; | |
61 | unsigned short midi_mode; | |
62 | unsigned short midi_sustain_mode; | |
63 | unsigned short midi_sustain; | |
64 | unsigned short midi_channel; | |
65 | short midi_octave; | |
66 | struct pcmidi_sustain sustained_notes[PCMIDI_SUSTAINED_MAX]; | |
67 | unsigned short fn_state; | |
68 | unsigned short last_key[24]; | |
69 | spinlock_t rawmidi_in_lock; | |
70 | struct snd_card *card; | |
71 | struct snd_rawmidi *rwmidi; | |
72 | struct snd_rawmidi_substream *in_substream; | |
73 | struct snd_rawmidi_substream *out_substream; | |
74 | unsigned long in_triggered; | |
75 | unsigned long out_active; | |
76 | }; | |
77 | ||
78 | #define PK_QUIRK_NOGET 0x00010000 | |
79 | #define PCMIDI_MIDDLE_C 60 | |
80 | #define PCMIDI_CHANNEL_MIN 0 | |
81 | #define PCMIDI_CHANNEL_MAX 15 | |
82 | #define PCMIDI_OCTAVE_MIN (-2) | |
83 | #define PCMIDI_OCTAVE_MAX 2 | |
84 | #define PCMIDI_SUSTAIN_MIN 0 | |
85 | #define PCMIDI_SUSTAIN_MAX 5000 | |
86 | ||
87 | static const char shortname[] = "PC-MIDI"; | |
88 | static const char longname[] = "Prodikeys PC-MIDI Keyboard"; | |
89 | ||
90 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; | |
91 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; | |
90ab5ee9 | 92 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
3a370ca1 DP |
93 | |
94 | module_param_array(index, int, NULL, 0444); | |
95 | module_param_array(id, charp, NULL, 0444); | |
96 | module_param_array(enable, bool, NULL, 0444); | |
97 | MODULE_PARM_DESC(index, "Index value for the PC-MIDI virtual audio driver"); | |
98 | MODULE_PARM_DESC(id, "ID string for the PC-MIDI virtual audio driver"); | |
99 | MODULE_PARM_DESC(enable, "Enable for the PC-MIDI virtual audio driver"); | |
100 | ||
101 | ||
102 | /* Output routine for the sysfs channel file */ | |
103 | static ssize_t show_channel(struct device *dev, | |
104 | struct device_attribute *attr, char *buf) | |
105 | { | |
ee79a8f8 | 106 | struct hid_device *hdev = to_hid_device(dev); |
372d297b | 107 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
108 | |
109 | dbg_hid("pcmidi sysfs read channel=%u\n", pk->pm->midi_channel); | |
110 | ||
111 | return sprintf(buf, "%u (min:%u, max:%u)\n", pk->pm->midi_channel, | |
112 | PCMIDI_CHANNEL_MIN, PCMIDI_CHANNEL_MAX); | |
113 | } | |
114 | ||
115 | /* Input routine for the sysfs channel file */ | |
116 | static ssize_t store_channel(struct device *dev, | |
117 | struct device_attribute *attr, const char *buf, size_t count) | |
118 | { | |
ee79a8f8 | 119 | struct hid_device *hdev = to_hid_device(dev); |
372d297b | 120 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
121 | |
122 | unsigned channel = 0; | |
123 | ||
124 | if (sscanf(buf, "%u", &channel) > 0 && channel <= PCMIDI_CHANNEL_MAX) { | |
125 | dbg_hid("pcmidi sysfs write channel=%u\n", channel); | |
126 | pk->pm->midi_channel = channel; | |
127 | return strlen(buf); | |
128 | } | |
129 | return -EINVAL; | |
130 | } | |
131 | ||
c311598b | 132 | static DEVICE_ATTR(channel, S_IRUGO | S_IWUSR | S_IWGRP , show_channel, |
3a370ca1 DP |
133 | store_channel); |
134 | ||
135 | static struct device_attribute *sysfs_device_attr_channel = { | |
136 | &dev_attr_channel, | |
137 | }; | |
138 | ||
139 | /* Output routine for the sysfs sustain file */ | |
140 | static ssize_t show_sustain(struct device *dev, | |
141 | struct device_attribute *attr, char *buf) | |
142 | { | |
ee79a8f8 | 143 | struct hid_device *hdev = to_hid_device(dev); |
372d297b | 144 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
145 | |
146 | dbg_hid("pcmidi sysfs read sustain=%u\n", pk->pm->midi_sustain); | |
147 | ||
148 | return sprintf(buf, "%u (off:%u, max:%u (ms))\n", pk->pm->midi_sustain, | |
149 | PCMIDI_SUSTAIN_MIN, PCMIDI_SUSTAIN_MAX); | |
150 | } | |
151 | ||
152 | /* Input routine for the sysfs sustain file */ | |
153 | static ssize_t store_sustain(struct device *dev, | |
154 | struct device_attribute *attr, const char *buf, size_t count) | |
155 | { | |
ee79a8f8 | 156 | struct hid_device *hdev = to_hid_device(dev); |
372d297b | 157 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
158 | |
159 | unsigned sustain = 0; | |
160 | ||
161 | if (sscanf(buf, "%u", &sustain) > 0 && sustain <= PCMIDI_SUSTAIN_MAX) { | |
162 | dbg_hid("pcmidi sysfs write sustain=%u\n", sustain); | |
163 | pk->pm->midi_sustain = sustain; | |
164 | pk->pm->midi_sustain_mode = | |
165 | (0 == sustain || !pk->pm->midi_mode) ? 0 : 1; | |
166 | return strlen(buf); | |
167 | } | |
168 | return -EINVAL; | |
169 | } | |
170 | ||
c311598b | 171 | static DEVICE_ATTR(sustain, S_IRUGO | S_IWUSR | S_IWGRP, show_sustain, |
3a370ca1 DP |
172 | store_sustain); |
173 | ||
174 | static struct device_attribute *sysfs_device_attr_sustain = { | |
175 | &dev_attr_sustain, | |
176 | }; | |
177 | ||
178 | /* Output routine for the sysfs octave file */ | |
179 | static ssize_t show_octave(struct device *dev, | |
180 | struct device_attribute *attr, char *buf) | |
181 | { | |
ee79a8f8 | 182 | struct hid_device *hdev = to_hid_device(dev); |
372d297b | 183 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
184 | |
185 | dbg_hid("pcmidi sysfs read octave=%d\n", pk->pm->midi_octave); | |
186 | ||
187 | return sprintf(buf, "%d (min:%d, max:%d)\n", pk->pm->midi_octave, | |
188 | PCMIDI_OCTAVE_MIN, PCMIDI_OCTAVE_MAX); | |
189 | } | |
190 | ||
191 | /* Input routine for the sysfs octave file */ | |
192 | static ssize_t store_octave(struct device *dev, | |
193 | struct device_attribute *attr, const char *buf, size_t count) | |
194 | { | |
ee79a8f8 | 195 | struct hid_device *hdev = to_hid_device(dev); |
372d297b | 196 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
197 | |
198 | int octave = 0; | |
199 | ||
200 | if (sscanf(buf, "%d", &octave) > 0 && | |
201 | octave >= PCMIDI_OCTAVE_MIN && octave <= PCMIDI_OCTAVE_MAX) { | |
202 | dbg_hid("pcmidi sysfs write octave=%d\n", octave); | |
203 | pk->pm->midi_octave = octave; | |
204 | return strlen(buf); | |
205 | } | |
206 | return -EINVAL; | |
207 | } | |
208 | ||
c311598b | 209 | static DEVICE_ATTR(octave, S_IRUGO | S_IWUSR | S_IWGRP, show_octave, |
3a370ca1 DP |
210 | store_octave); |
211 | ||
212 | static struct device_attribute *sysfs_device_attr_octave = { | |
213 | &dev_attr_octave, | |
214 | }; | |
215 | ||
216 | ||
217 | static void pcmidi_send_note(struct pcmidi_snd *pm, | |
218 | unsigned char status, unsigned char note, unsigned char velocity) | |
219 | { | |
220 | unsigned long flags; | |
221 | unsigned char buffer[3]; | |
222 | ||
223 | buffer[0] = status; | |
224 | buffer[1] = note; | |
225 | buffer[2] = velocity; | |
226 | ||
227 | spin_lock_irqsave(&pm->rawmidi_in_lock, flags); | |
228 | ||
229 | if (!pm->in_substream) | |
230 | goto drop_note; | |
231 | if (!test_bit(pm->in_substream->number, &pm->in_triggered)) | |
232 | goto drop_note; | |
233 | ||
234 | snd_rawmidi_receive(pm->in_substream, buffer, 3); | |
235 | ||
236 | drop_note: | |
237 | spin_unlock_irqrestore(&pm->rawmidi_in_lock, flags); | |
238 | ||
239 | return; | |
240 | } | |
241 | ||
e99e88a9 | 242 | static void pcmidi_sustained_note_release(struct timer_list *t) |
3a370ca1 | 243 | { |
e99e88a9 | 244 | struct pcmidi_sustain *pms = from_timer(pms, t, timer); |
3a370ca1 DP |
245 | |
246 | pcmidi_send_note(pms->pm, pms->status, pms->note, pms->velocity); | |
247 | pms->in_use = 0; | |
248 | } | |
249 | ||
f4c79818 | 250 | static void init_sustain_timers(struct pcmidi_snd *pm) |
3a370ca1 DP |
251 | { |
252 | struct pcmidi_sustain *pms; | |
253 | unsigned i; | |
254 | ||
255 | for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) { | |
256 | pms = &pm->sustained_notes[i]; | |
257 | pms->in_use = 0; | |
258 | pms->pm = pm; | |
e99e88a9 | 259 | timer_setup(&pms->timer, pcmidi_sustained_note_release, 0); |
3a370ca1 DP |
260 | } |
261 | } | |
262 | ||
f4c79818 | 263 | static void stop_sustain_timers(struct pcmidi_snd *pm) |
3a370ca1 DP |
264 | { |
265 | struct pcmidi_sustain *pms; | |
266 | unsigned i; | |
267 | ||
268 | for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) { | |
269 | pms = &pm->sustained_notes[i]; | |
270 | pms->in_use = 1; | |
271 | del_timer_sync(&pms->timer); | |
272 | } | |
273 | } | |
274 | ||
275 | static int pcmidi_get_output_report(struct pcmidi_snd *pm) | |
276 | { | |
277 | struct hid_device *hdev = pm->pk->hdev; | |
278 | struct hid_report *report; | |
279 | ||
280 | list_for_each_entry(report, | |
281 | &hdev->report_enum[HID_OUTPUT_REPORT].report_list, list) { | |
282 | if (!(6 == report->id)) | |
283 | continue; | |
284 | ||
285 | if (report->maxfield < 1) { | |
4291ee30 | 286 | hid_err(hdev, "output report is empty\n"); |
3a370ca1 DP |
287 | break; |
288 | } | |
289 | if (report->field[0]->report_count != 2) { | |
4291ee30 | 290 | hid_err(hdev, "field count too low\n"); |
3a370ca1 DP |
291 | break; |
292 | } | |
293 | pm->pcmidi_report6 = report; | |
294 | return 0; | |
295 | } | |
296 | /* should never get here */ | |
297 | return -ENODEV; | |
298 | } | |
299 | ||
300 | static void pcmidi_submit_output_report(struct pcmidi_snd *pm, int state) | |
301 | { | |
302 | struct hid_device *hdev = pm->pk->hdev; | |
303 | struct hid_report *report = pm->pcmidi_report6; | |
304 | report->field[0]->value[0] = 0x01; | |
305 | report->field[0]->value[1] = state; | |
306 | ||
d8814272 | 307 | hid_hw_request(hdev, report, HID_REQ_SET_REPORT); |
3a370ca1 DP |
308 | } |
309 | ||
310 | static int pcmidi_handle_report1(struct pcmidi_snd *pm, u8 *data) | |
311 | { | |
312 | u32 bit_mask; | |
313 | ||
314 | bit_mask = data[1]; | |
315 | bit_mask = (bit_mask << 8) | data[2]; | |
316 | bit_mask = (bit_mask << 8) | data[3]; | |
317 | ||
318 | dbg_hid("pcmidi mode: %d\n", pm->midi_mode); | |
319 | ||
320 | /*KEY_MAIL or octave down*/ | |
321 | if (pm->midi_mode && bit_mask == 0x004000) { | |
322 | /* octave down */ | |
323 | pm->midi_octave--; | |
324 | if (pm->midi_octave < -2) | |
325 | pm->midi_octave = -2; | |
326 | dbg_hid("pcmidi mode: %d octave: %d\n", | |
327 | pm->midi_mode, pm->midi_octave); | |
328 | return 1; | |
329 | } | |
330 | /*KEY_WWW or sustain*/ | |
331 | else if (pm->midi_mode && bit_mask == 0x000004) { | |
332 | /* sustain on/off*/ | |
333 | pm->midi_sustain_mode ^= 0x1; | |
334 | return 1; | |
335 | } | |
336 | ||
337 | return 0; /* continue key processing */ | |
338 | } | |
339 | ||
340 | static int pcmidi_handle_report3(struct pcmidi_snd *pm, u8 *data, int size) | |
341 | { | |
342 | struct pcmidi_sustain *pms; | |
343 | unsigned i, j; | |
344 | unsigned char status, note, velocity; | |
345 | ||
346 | unsigned num_notes = (size-1)/2; | |
347 | for (j = 0; j < num_notes; j++) { | |
348 | note = data[j*2+1]; | |
349 | velocity = data[j*2+2]; | |
350 | ||
351 | if (note < 0x81) { /* note on */ | |
352 | status = 128 + 16 + pm->midi_channel; /* 1001nnnn */ | |
353 | note = note - 0x54 + PCMIDI_MIDDLE_C + | |
354 | (pm->midi_octave * 12); | |
355 | if (0 == velocity) | |
356 | velocity = 1; /* force note on */ | |
357 | } else { /* note off */ | |
358 | status = 128 + pm->midi_channel; /* 1000nnnn */ | |
359 | note = note - 0x94 + PCMIDI_MIDDLE_C + | |
360 | (pm->midi_octave*12); | |
361 | ||
362 | if (pm->midi_sustain_mode) { | |
363 | for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) { | |
364 | pms = &pm->sustained_notes[i]; | |
365 | if (!pms->in_use) { | |
366 | pms->status = status; | |
367 | pms->note = note; | |
368 | pms->velocity = velocity; | |
369 | pms->in_use = 1; | |
370 | ||
371 | mod_timer(&pms->timer, | |
372 | jiffies + | |
373 | msecs_to_jiffies(pm->midi_sustain)); | |
374 | return 1; | |
375 | } | |
376 | } | |
377 | } | |
378 | } | |
379 | pcmidi_send_note(pm, status, note, velocity); | |
380 | } | |
381 | ||
382 | return 1; | |
383 | } | |
384 | ||
385 | static int pcmidi_handle_report4(struct pcmidi_snd *pm, u8 *data) | |
386 | { | |
387 | unsigned key; | |
388 | u32 bit_mask; | |
389 | u32 bit_index; | |
390 | ||
391 | bit_mask = data[1]; | |
392 | bit_mask = (bit_mask << 8) | data[2]; | |
393 | bit_mask = (bit_mask << 8) | data[3]; | |
394 | ||
395 | /* break keys */ | |
396 | for (bit_index = 0; bit_index < 24; bit_index++) { | |
3a370ca1 DP |
397 | if (!((0x01 << bit_index) & bit_mask)) { |
398 | input_event(pm->input_ep82, EV_KEY, | |
399 | pm->last_key[bit_index], 0); | |
c6f2104c | 400 | pm->last_key[bit_index] = 0; |
3a370ca1 DP |
401 | } |
402 | } | |
403 | ||
404 | /* make keys */ | |
405 | for (bit_index = 0; bit_index < 24; bit_index++) { | |
406 | key = 0; | |
407 | switch ((0x01 << bit_index) & bit_mask) { | |
408 | case 0x000010: /* Fn lock*/ | |
409 | pm->fn_state ^= 0x000010; | |
410 | if (pm->fn_state) | |
411 | pcmidi_submit_output_report(pm, 0xc5); | |
412 | else | |
413 | pcmidi_submit_output_report(pm, 0xc6); | |
414 | continue; | |
415 | case 0x020000: /* midi launcher..send a key (qwerty) or not? */ | |
416 | pcmidi_submit_output_report(pm, 0xc1); | |
417 | pm->midi_mode ^= 0x01; | |
418 | ||
419 | dbg_hid("pcmidi mode: %d\n", pm->midi_mode); | |
420 | continue; | |
421 | case 0x100000: /* KEY_MESSENGER or octave up */ | |
422 | dbg_hid("pcmidi mode: %d\n", pm->midi_mode); | |
423 | if (pm->midi_mode) { | |
424 | pm->midi_octave++; | |
425 | if (pm->midi_octave > 2) | |
426 | pm->midi_octave = 2; | |
427 | dbg_hid("pcmidi mode: %d octave: %d\n", | |
428 | pm->midi_mode, pm->midi_octave); | |
636a89d4 | 429 | continue; |
3a370ca1 DP |
430 | } else |
431 | key = KEY_MESSENGER; | |
432 | break; | |
433 | case 0x400000: | |
434 | key = KEY_CALENDAR; | |
435 | break; | |
436 | case 0x080000: | |
437 | key = KEY_ADDRESSBOOK; | |
438 | break; | |
439 | case 0x040000: | |
440 | key = KEY_DOCUMENTS; | |
441 | break; | |
442 | case 0x800000: | |
443 | key = KEY_WORDPROCESSOR; | |
444 | break; | |
445 | case 0x200000: | |
446 | key = KEY_SPREADSHEET; | |
447 | break; | |
448 | case 0x010000: | |
449 | key = KEY_COFFEE; | |
450 | break; | |
451 | case 0x000100: | |
452 | key = KEY_HELP; | |
453 | break; | |
454 | case 0x000200: | |
455 | key = KEY_SEND; | |
456 | break; | |
457 | case 0x000400: | |
458 | key = KEY_REPLY; | |
459 | break; | |
460 | case 0x000800: | |
461 | key = KEY_FORWARDMAIL; | |
462 | break; | |
463 | case 0x001000: | |
464 | key = KEY_NEW; | |
465 | break; | |
466 | case 0x002000: | |
467 | key = KEY_OPEN; | |
468 | break; | |
469 | case 0x004000: | |
470 | key = KEY_CLOSE; | |
471 | break; | |
472 | case 0x008000: | |
473 | key = KEY_SAVE; | |
474 | break; | |
475 | case 0x000001: | |
476 | key = KEY_UNDO; | |
477 | break; | |
478 | case 0x000002: | |
479 | key = KEY_REDO; | |
480 | break; | |
481 | case 0x000004: | |
482 | key = KEY_SPELLCHECK; | |
483 | break; | |
484 | case 0x000008: | |
485 | key = KEY_PRINT; | |
486 | break; | |
487 | } | |
488 | if (key) { | |
489 | input_event(pm->input_ep82, EV_KEY, key, 1); | |
490 | pm->last_key[bit_index] = key; | |
491 | } | |
492 | } | |
493 | ||
494 | return 1; | |
495 | } | |
496 | ||
f4c79818 | 497 | static int pcmidi_handle_report( |
3a370ca1 DP |
498 | struct pcmidi_snd *pm, unsigned report_id, u8 *data, int size) |
499 | { | |
500 | int ret = 0; | |
501 | ||
502 | switch (report_id) { | |
503 | case 0x01: /* midi keys (qwerty)*/ | |
504 | ret = pcmidi_handle_report1(pm, data); | |
505 | break; | |
506 | case 0x03: /* midi keyboard (musical)*/ | |
507 | ret = pcmidi_handle_report3(pm, data, size); | |
508 | break; | |
509 | case 0x04: /* multimedia/midi keys (qwerty)*/ | |
510 | ret = pcmidi_handle_report4(pm, data); | |
511 | break; | |
512 | } | |
513 | return ret; | |
514 | } | |
515 | ||
f4c79818 AL |
516 | static void pcmidi_setup_extra_keys( |
517 | struct pcmidi_snd *pm, struct input_dev *input) | |
3a370ca1 DP |
518 | { |
519 | /* reassigned functionality for N/A keys | |
520 | MY PICTURES => KEY_WORDPROCESSOR | |
521 | MY MUSIC=> KEY_SPREADSHEET | |
522 | */ | |
523 | unsigned int keys[] = { | |
524 | KEY_FN, | |
525 | KEY_MESSENGER, KEY_CALENDAR, | |
526 | KEY_ADDRESSBOOK, KEY_DOCUMENTS, | |
527 | KEY_WORDPROCESSOR, | |
528 | KEY_SPREADSHEET, | |
529 | KEY_COFFEE, | |
530 | KEY_HELP, KEY_SEND, | |
531 | KEY_REPLY, KEY_FORWARDMAIL, | |
532 | KEY_NEW, KEY_OPEN, | |
533 | KEY_CLOSE, KEY_SAVE, | |
534 | KEY_UNDO, KEY_REDO, | |
535 | KEY_SPELLCHECK, KEY_PRINT, | |
536 | 0 | |
537 | }; | |
538 | ||
539 | unsigned int *pkeys = &keys[0]; | |
540 | unsigned short i; | |
541 | ||
542 | if (pm->ifnum != 1) /* only set up ONCE for interace 1 */ | |
543 | return; | |
544 | ||
545 | pm->input_ep82 = input; | |
546 | ||
547 | for (i = 0; i < 24; i++) | |
548 | pm->last_key[i] = 0; | |
549 | ||
550 | while (*pkeys != 0) { | |
551 | set_bit(*pkeys, pm->input_ep82->keybit); | |
552 | ++pkeys; | |
553 | } | |
554 | } | |
555 | ||
556 | static int pcmidi_set_operational(struct pcmidi_snd *pm) | |
557 | { | |
41f27c24 AS |
558 | int rc; |
559 | ||
3a370ca1 DP |
560 | if (pm->ifnum != 1) |
561 | return 0; /* only set up ONCE for interace 1 */ | |
562 | ||
41f27c24 AS |
563 | rc = pcmidi_get_output_report(pm); |
564 | if (rc < 0) | |
565 | return rc; | |
3a370ca1 DP |
566 | pcmidi_submit_output_report(pm, 0xc1); |
567 | return 0; | |
568 | } | |
569 | ||
570 | static int pcmidi_snd_free(struct snd_device *dev) | |
571 | { | |
572 | return 0; | |
573 | } | |
574 | ||
575 | static int pcmidi_in_open(struct snd_rawmidi_substream *substream) | |
576 | { | |
577 | struct pcmidi_snd *pm = substream->rmidi->private_data; | |
578 | ||
579 | dbg_hid("pcmidi in open\n"); | |
580 | pm->in_substream = substream; | |
581 | return 0; | |
582 | } | |
583 | ||
584 | static int pcmidi_in_close(struct snd_rawmidi_substream *substream) | |
585 | { | |
586 | dbg_hid("pcmidi in close\n"); | |
587 | return 0; | |
588 | } | |
589 | ||
590 | static void pcmidi_in_trigger(struct snd_rawmidi_substream *substream, int up) | |
591 | { | |
592 | struct pcmidi_snd *pm = substream->rmidi->private_data; | |
593 | ||
594 | dbg_hid("pcmidi in trigger %d\n", up); | |
595 | ||
596 | pm->in_triggered = up; | |
597 | } | |
598 | ||
0acb310c | 599 | static const struct snd_rawmidi_ops pcmidi_in_ops = { |
3a370ca1 DP |
600 | .open = pcmidi_in_open, |
601 | .close = pcmidi_in_close, | |
602 | .trigger = pcmidi_in_trigger | |
603 | }; | |
604 | ||
f4c79818 | 605 | static int pcmidi_snd_initialise(struct pcmidi_snd *pm) |
3a370ca1 DP |
606 | { |
607 | static int dev; | |
608 | struct snd_card *card; | |
609 | struct snd_rawmidi *rwmidi; | |
610 | int err; | |
611 | ||
612 | static struct snd_device_ops ops = { | |
613 | .dev_free = pcmidi_snd_free, | |
614 | }; | |
615 | ||
616 | if (pm->ifnum != 1) | |
617 | return 0; /* only set up midi device ONCE for interace 1 */ | |
618 | ||
619 | if (dev >= SNDRV_CARDS) | |
620 | return -ENODEV; | |
621 | ||
622 | if (!enable[dev]) { | |
623 | dev++; | |
624 | return -ENOENT; | |
625 | } | |
626 | ||
627 | /* Setup sound card */ | |
628 | ||
b9d4e7b0 TI |
629 | err = snd_card_new(&pm->pk->hdev->dev, index[dev], id[dev], |
630 | THIS_MODULE, 0, &card); | |
3a370ca1 DP |
631 | if (err < 0) { |
632 | pk_error("failed to create pc-midi sound card\n"); | |
633 | err = -ENOMEM; | |
634 | goto fail; | |
635 | } | |
636 | pm->card = card; | |
637 | ||
638 | /* Setup sound device */ | |
639 | err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pm, &ops); | |
640 | if (err < 0) { | |
641 | pk_error("failed to create pc-midi sound device: error %d\n", | |
642 | err); | |
643 | goto fail; | |
644 | } | |
645 | ||
646 | strncpy(card->driver, shortname, sizeof(card->driver)); | |
647 | strncpy(card->shortname, shortname, sizeof(card->shortname)); | |
648 | strncpy(card->longname, longname, sizeof(card->longname)); | |
649 | ||
650 | /* Set up rawmidi */ | |
651 | err = snd_rawmidi_new(card, card->shortname, 0, | |
652 | 0, 1, &rwmidi); | |
653 | if (err < 0) { | |
654 | pk_error("failed to create pc-midi rawmidi device: error %d\n", | |
655 | err); | |
656 | goto fail; | |
657 | } | |
658 | pm->rwmidi = rwmidi; | |
659 | strncpy(rwmidi->name, card->shortname, sizeof(rwmidi->name)); | |
660 | rwmidi->info_flags = SNDRV_RAWMIDI_INFO_INPUT; | |
661 | rwmidi->private_data = pm; | |
662 | ||
663 | snd_rawmidi_set_ops(rwmidi, SNDRV_RAWMIDI_STREAM_INPUT, | |
664 | &pcmidi_in_ops); | |
665 | ||
3a370ca1 DP |
666 | /* create sysfs variables */ |
667 | err = device_create_file(&pm->pk->hdev->dev, | |
668 | sysfs_device_attr_channel); | |
669 | if (err < 0) { | |
670 | pk_error("failed to create sysfs attribute channel: error %d\n", | |
671 | err); | |
672 | goto fail; | |
673 | } | |
674 | ||
675 | err = device_create_file(&pm->pk->hdev->dev, | |
676 | sysfs_device_attr_sustain); | |
677 | if (err < 0) { | |
678 | pk_error("failed to create sysfs attribute sustain: error %d\n", | |
679 | err); | |
680 | goto fail_attr_sustain; | |
681 | } | |
682 | ||
683 | err = device_create_file(&pm->pk->hdev->dev, | |
684 | sysfs_device_attr_octave); | |
685 | if (err < 0) { | |
686 | pk_error("failed to create sysfs attribute octave: error %d\n", | |
687 | err); | |
688 | goto fail_attr_octave; | |
689 | } | |
690 | ||
691 | spin_lock_init(&pm->rawmidi_in_lock); | |
692 | ||
693 | init_sustain_timers(pm); | |
41f27c24 AS |
694 | err = pcmidi_set_operational(pm); |
695 | if (err < 0) { | |
696 | pk_error("failed to find output report\n"); | |
697 | goto fail_register; | |
698 | } | |
3a370ca1 DP |
699 | |
700 | /* register it */ | |
701 | err = snd_card_register(card); | |
702 | if (err < 0) { | |
703 | pk_error("failed to register pc-midi sound card: error %d\n", | |
704 | err); | |
636a89d4 | 705 | goto fail_register; |
3a370ca1 DP |
706 | } |
707 | ||
708 | dbg_hid("pcmidi_snd_initialise finished ok\n"); | |
709 | return 0; | |
710 | ||
711 | fail_register: | |
712 | stop_sustain_timers(pm); | |
713 | device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_octave); | |
714 | fail_attr_octave: | |
715 | device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_sustain); | |
716 | fail_attr_sustain: | |
717 | device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_channel); | |
718 | fail: | |
719 | if (pm->card) { | |
720 | snd_card_free(pm->card); | |
721 | pm->card = NULL; | |
722 | } | |
723 | return err; | |
724 | } | |
725 | ||
f4c79818 | 726 | static int pcmidi_snd_terminate(struct pcmidi_snd *pm) |
3a370ca1 DP |
727 | { |
728 | if (pm->card) { | |
729 | stop_sustain_timers(pm); | |
730 | ||
731 | device_remove_file(&pm->pk->hdev->dev, | |
732 | sysfs_device_attr_channel); | |
733 | device_remove_file(&pm->pk->hdev->dev, | |
734 | sysfs_device_attr_sustain); | |
735 | device_remove_file(&pm->pk->hdev->dev, | |
736 | sysfs_device_attr_octave); | |
737 | ||
738 | snd_card_disconnect(pm->card); | |
739 | snd_card_free_when_closed(pm->card); | |
740 | } | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | /* | |
746 | * PC-MIDI report descriptor for report id is wrong. | |
747 | */ | |
73e4008d NK |
748 | static __u8 *pk_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
749 | unsigned int *rsize) | |
3a370ca1 | 750 | { |
73e4008d | 751 | if (*rsize == 178 && |
3a370ca1 DP |
752 | rdesc[111] == 0x06 && rdesc[112] == 0x00 && |
753 | rdesc[113] == 0xff) { | |
4291ee30 JP |
754 | hid_info(hdev, |
755 | "fixing up pc-midi keyboard report descriptor\n"); | |
3a370ca1 DP |
756 | |
757 | rdesc[144] = 0x18; /* report 4: was 0x10 report count */ | |
758 | } | |
73e4008d | 759 | return rdesc; |
3a370ca1 DP |
760 | } |
761 | ||
762 | static int pk_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
763 | struct hid_field *field, struct hid_usage *usage, | |
764 | unsigned long **bit, int *max) | |
765 | { | |
372d297b | 766 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
767 | struct pcmidi_snd *pm; |
768 | ||
769 | pm = pk->pm; | |
770 | ||
771 | if (HID_UP_MSVENDOR == (usage->hid & HID_USAGE_PAGE) && | |
772 | 1 == pm->ifnum) { | |
773 | pcmidi_setup_extra_keys(pm, hi->input); | |
774 | return 0; | |
775 | } | |
776 | ||
777 | return 0; | |
778 | } | |
779 | ||
780 | ||
781 | static int pk_raw_event(struct hid_device *hdev, struct hid_report *report, | |
782 | u8 *data, int size) | |
783 | { | |
372d297b | 784 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
785 | int ret = 0; |
786 | ||
787 | if (1 == pk->pm->ifnum) { | |
788 | if (report->id == data[0]) | |
789 | switch (report->id) { | |
790 | case 0x01: /* midi keys (qwerty)*/ | |
791 | case 0x03: /* midi keyboard (musical)*/ | |
792 | case 0x04: /* extra/midi keys (qwerty)*/ | |
793 | ret = pcmidi_handle_report(pk->pm, | |
794 | report->id, data, size); | |
795 | break; | |
796 | } | |
797 | } | |
798 | ||
799 | return ret; | |
800 | } | |
801 | ||
802 | static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
803 | { | |
804 | int ret; | |
805 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
806 | unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
807 | unsigned long quirks = id->driver_data; | |
808 | struct pk_device *pk; | |
809 | struct pcmidi_snd *pm = NULL; | |
810 | ||
811 | pk = kzalloc(sizeof(*pk), GFP_KERNEL); | |
812 | if (pk == NULL) { | |
4291ee30 | 813 | hid_err(hdev, "can't alloc descriptor\n"); |
3a370ca1 DP |
814 | return -ENOMEM; |
815 | } | |
816 | ||
817 | pk->hdev = hdev; | |
818 | ||
819 | pm = kzalloc(sizeof(*pm), GFP_KERNEL); | |
820 | if (pm == NULL) { | |
4291ee30 | 821 | hid_err(hdev, "can't alloc descriptor\n"); |
3a370ca1 | 822 | ret = -ENOMEM; |
00b15628 | 823 | goto err_free_pk; |
3a370ca1 DP |
824 | } |
825 | ||
826 | pm->pk = pk; | |
827 | pk->pm = pm; | |
828 | pm->ifnum = ifnum; | |
829 | ||
830 | hid_set_drvdata(hdev, pk); | |
831 | ||
832 | ret = hid_parse(hdev); | |
833 | if (ret) { | |
4291ee30 | 834 | hid_err(hdev, "hid parse failed\n"); |
3a370ca1 DP |
835 | goto err_free; |
836 | } | |
837 | ||
838 | if (quirks & PK_QUIRK_NOGET) { /* hid_parse cleared all the quirks */ | |
839 | hdev->quirks |= HID_QUIRK_NOGET; | |
840 | } | |
841 | ||
842 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
843 | if (ret) { | |
4291ee30 | 844 | hid_err(hdev, "hw start failed\n"); |
3a370ca1 DP |
845 | goto err_free; |
846 | } | |
847 | ||
848 | ret = pcmidi_snd_initialise(pm); | |
849 | if (ret < 0) | |
850 | goto err_stop; | |
851 | ||
852 | return 0; | |
853 | err_stop: | |
854 | hid_hw_stop(hdev); | |
855 | err_free: | |
00b15628 BP |
856 | kfree(pm); |
857 | err_free_pk: | |
3a370ca1 | 858 | kfree(pk); |
00b15628 | 859 | |
3a370ca1 DP |
860 | return ret; |
861 | } | |
862 | ||
863 | static void pk_remove(struct hid_device *hdev) | |
864 | { | |
372d297b | 865 | struct pk_device *pk = hid_get_drvdata(hdev); |
3a370ca1 DP |
866 | struct pcmidi_snd *pm; |
867 | ||
868 | pm = pk->pm; | |
869 | if (pm) { | |
870 | pcmidi_snd_terminate(pm); | |
871 | kfree(pm); | |
872 | } | |
873 | ||
874 | hid_hw_stop(hdev); | |
875 | ||
876 | kfree(pk); | |
877 | } | |
878 | ||
879 | static const struct hid_device_id pk_devices[] = { | |
880 | {HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, | |
881 | USB_DEVICE_ID_PRODIKEYS_PCMIDI), | |
882 | .driver_data = PK_QUIRK_NOGET}, | |
883 | { } | |
884 | }; | |
885 | MODULE_DEVICE_TABLE(hid, pk_devices); | |
886 | ||
887 | static struct hid_driver pk_driver = { | |
888 | .name = "prodikeys", | |
889 | .id_table = pk_devices, | |
890 | .report_fixup = pk_report_fixup, | |
891 | .input_mapping = pk_input_mapping, | |
892 | .raw_event = pk_raw_event, | |
893 | .probe = pk_probe, | |
894 | .remove = pk_remove, | |
895 | }; | |
f425458e | 896 | module_hid_driver(pk_driver); |
3a370ca1 | 897 | |
3a370ca1 | 898 | MODULE_LICENSE("GPL"); |