diff options
Diffstat (limited to 'sound/oss/emu10k1/cardwo.c')
-rw-r--r-- | sound/oss/emu10k1/cardwo.c | 643 |
1 files changed, 0 insertions, 643 deletions
diff --git a/sound/oss/emu10k1/cardwo.c b/sound/oss/emu10k1/cardwo.c deleted file mode 100644 index 54daca4f57b4..000000000000 --- a/sound/oss/emu10k1/cardwo.c +++ /dev/null | |||
@@ -1,643 +0,0 @@ | |||
1 | /* | ||
2 | ********************************************************************** | ||
3 | * cardwo.c - PCM output HAL for emu10k1 driver | ||
4 | * Copyright 1999, 2000 Creative Labs, Inc. | ||
5 | * | ||
6 | ********************************************************************** | ||
7 | * | ||
8 | * Date Author Summary of changes | ||
9 | * ---- ------ ------------------ | ||
10 | * October 20, 1999 Bertrand Lee base code release | ||
11 | * | ||
12 | ********************************************************************** | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or | ||
15 | * modify it under the terms of the GNU General Public License as | ||
16 | * published by the Free Software Foundation; either version 2 of | ||
17 | * the License, or (at your option) any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public | ||
25 | * License along with this program; if not, write to the Free | ||
26 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, | ||
27 | * USA. | ||
28 | * | ||
29 | ********************************************************************** | ||
30 | */ | ||
31 | |||
32 | #include <linux/poll.h> | ||
33 | #include "hwaccess.h" | ||
34 | #include "8010.h" | ||
35 | #include "voicemgr.h" | ||
36 | #include "cardwo.h" | ||
37 | #include "audio.h" | ||
38 | |||
39 | static u32 samplerate_to_linearpitch(u32 samplingrate) | ||
40 | { | ||
41 | samplingrate = (samplingrate << 8) / 375; | ||
42 | return (samplingrate >> 1) + (samplingrate & 1); | ||
43 | } | ||
44 | |||
45 | static void query_format(struct emu10k1_wavedevice *wave_dev, struct wave_format *wave_fmt) | ||
46 | { | ||
47 | int i, j, do_passthrough = 0, is_ac3 = 0; | ||
48 | struct emu10k1_card *card = wave_dev->card; | ||
49 | struct woinst *woinst = wave_dev->woinst; | ||
50 | |||
51 | if ((wave_fmt->channels > 2) && (wave_fmt->id != AFMT_S16_LE) && (wave_fmt->id != AFMT_U8)) | ||
52 | wave_fmt->channels = 2; | ||
53 | |||
54 | if ((wave_fmt->channels < 1) || (wave_fmt->channels > WAVEOUT_MAXVOICES)) | ||
55 | wave_fmt->channels = 2; | ||
56 | |||
57 | if (wave_fmt->channels == 2) | ||
58 | woinst->num_voices = 1; | ||
59 | else | ||
60 | woinst->num_voices = wave_fmt->channels; | ||
61 | |||
62 | if (wave_fmt->samplingrate >= 0x2ee00) | ||
63 | wave_fmt->samplingrate = 0x2ee00; | ||
64 | |||
65 | wave_fmt->passthrough = 0; | ||
66 | do_passthrough = is_ac3 = 0; | ||
67 | |||
68 | if (card->pt.selected) | ||
69 | do_passthrough = 1; | ||
70 | |||
71 | switch (wave_fmt->id) { | ||
72 | case AFMT_S16_LE: | ||
73 | wave_fmt->bitsperchannel = 16; | ||
74 | break; | ||
75 | case AFMT_U8: | ||
76 | wave_fmt->bitsperchannel = 8; | ||
77 | break; | ||
78 | case AFMT_AC3: | ||
79 | do_passthrough = 1; | ||
80 | is_ac3 = 1; | ||
81 | break; | ||
82 | default: | ||
83 | wave_fmt->id = AFMT_S16_LE; | ||
84 | wave_fmt->bitsperchannel = 16; | ||
85 | break; | ||
86 | } | ||
87 | if (do_passthrough) { | ||
88 | /* currently only one waveout instance may use pass-through */ | ||
89 | if (woinst->state != WAVE_STATE_CLOSED || | ||
90 | card->pt.state != PT_STATE_INACTIVE || | ||
91 | (wave_fmt->samplingrate != 48000 && !is_ac3)) { | ||
92 | DPF(2, "unable to set pass-through mode\n"); | ||
93 | } else if (USE_PT_METHOD1) { | ||
94 | i = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name, card->pt.intr_gpr_name); | ||
95 | j = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name, card->pt.enable_gpr_name); | ||
96 | if (i < 0 || j < 0) | ||
97 | DPF(2, "unable to set pass-through mode\n"); | ||
98 | else { | ||
99 | wave_fmt->samplingrate = 48000; | ||
100 | wave_fmt->channels = 2; | ||
101 | card->pt.pos_gpr = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name, | ||
102 | card->pt.pos_gpr_name); | ||
103 | wave_fmt->passthrough = 1; | ||
104 | card->pt.intr_gpr = i; | ||
105 | card->pt.enable_gpr = j; | ||
106 | card->pt.state = PT_STATE_INACTIVE; | ||
107 | |||
108 | DPD(2, "is_ac3 is %d\n", is_ac3); | ||
109 | card->pt.ac3data = is_ac3; | ||
110 | wave_fmt->bitsperchannel = 16; | ||
111 | } | ||
112 | }else{ | ||
113 | DPF(2, "Using Passthrough Method 2\n"); | ||
114 | card->pt.enable_gpr = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name, | ||
115 | card->pt.enable_gpr_name); | ||
116 | wave_fmt->passthrough = 2; | ||
117 | wave_fmt->bitsperchannel = 16; | ||
118 | } | ||
119 | } | ||
120 | |||
121 | wave_fmt->bytesperchannel = wave_fmt->bitsperchannel >> 3; | ||
122 | wave_fmt->bytespersample = wave_fmt->channels * wave_fmt->bytesperchannel; | ||
123 | wave_fmt->bytespersec = wave_fmt->bytespersample * wave_fmt->samplingrate; | ||
124 | |||
125 | if (wave_fmt->channels == 2) | ||
126 | wave_fmt->bytespervoicesample = wave_fmt->channels * wave_fmt->bytesperchannel; | ||
127 | else | ||
128 | wave_fmt->bytespervoicesample = wave_fmt->bytesperchannel; | ||
129 | } | ||
130 | |||
131 | static int get_voice(struct emu10k1_card *card, struct woinst *woinst, unsigned int voicenum) | ||
132 | { | ||
133 | struct emu_voice *voice = &woinst->voice[voicenum]; | ||
134 | |||
135 | /* Allocate voices here, if no voices available, return error. */ | ||
136 | |||
137 | voice->usage = VOICE_USAGE_PLAYBACK; | ||
138 | |||
139 | voice->flags = 0; | ||
140 | |||
141 | if (woinst->format.channels == 2) | ||
142 | voice->flags |= VOICE_FLAGS_STEREO; | ||
143 | |||
144 | if (woinst->format.bitsperchannel == 16) | ||
145 | voice->flags |= VOICE_FLAGS_16BIT; | ||
146 | |||
147 | if (emu10k1_voice_alloc(card, voice) < 0) { | ||
148 | voice->usage = VOICE_USAGE_FREE; | ||
149 | return -1; | ||
150 | } | ||
151 | |||
152 | /* Calculate pitch */ | ||
153 | voice->initial_pitch = (u16) (srToPitch(woinst->format.samplingrate) >> 8); | ||
154 | voice->pitch_target = samplerate_to_linearpitch(woinst->format.samplingrate); | ||
155 | |||
156 | DPD(2, "Initial pitch --> %#x\n", voice->initial_pitch); | ||
157 | |||
158 | voice->startloop = (voice->mem.emupageindex << 12) / | ||
159 | woinst->format.bytespervoicesample; | ||
160 | voice->endloop = voice->startloop + woinst->buffer.size / woinst->format.bytespervoicesample; | ||
161 | voice->start = voice->startloop; | ||
162 | |||
163 | |||
164 | voice->params[0].volume_target = 0xffff; | ||
165 | voice->params[0].initial_fc = 0xff; | ||
166 | voice->params[0].initial_attn = 0x00; | ||
167 | voice->params[0].byampl_env_sustain = 0x7f; | ||
168 | voice->params[0].byampl_env_decay = 0x7f; | ||
169 | |||
170 | |||
171 | if (voice->flags & VOICE_FLAGS_STEREO) { | ||
172 | if (woinst->format.passthrough == 2) { | ||
173 | voice->params[0].send_routing = voice->params[1].send_routing = card->waveout.send_routing[ROUTE_PT]; | ||
174 | voice->params[0].send_routing2 = voice->params[1].send_routing2 = card->waveout.send_routing2[ROUTE_PT]; | ||
175 | voice->params[0].send_dcba = 0xff; | ||
176 | voice->params[1].send_dcba = 0xff00; | ||
177 | voice->params[0].send_hgfe = voice->params[1].send_hgfe=0; | ||
178 | } else { | ||
179 | voice->params[0].send_dcba = card->waveout.send_dcba[SEND_LEFT]; | ||
180 | voice->params[0].send_hgfe = card->waveout.send_hgfe[SEND_LEFT]; | ||
181 | voice->params[1].send_dcba = card->waveout.send_dcba[SEND_RIGHT]; | ||
182 | voice->params[1].send_hgfe = card->waveout.send_hgfe[SEND_RIGHT]; | ||
183 | |||
184 | if (woinst->device) { | ||
185 | // /dev/dps1 | ||
186 | voice->params[0].send_routing = voice->params[1].send_routing = card->waveout.send_routing[ROUTE_PCM1]; | ||
187 | voice->params[0].send_routing2 = voice->params[1].send_routing2 = card->waveout.send_routing2[ROUTE_PCM1]; | ||
188 | } else { | ||
189 | voice->params[0].send_routing = voice->params[1].send_routing = card->waveout.send_routing[ROUTE_PCM]; | ||
190 | voice->params[0].send_routing2 = voice->params[1].send_routing2 = card->waveout.send_routing2[ROUTE_PCM]; | ||
191 | } | ||
192 | } | ||
193 | |||
194 | voice->params[1].volume_target = 0xffff; | ||
195 | voice->params[1].initial_fc = 0xff; | ||
196 | voice->params[1].initial_attn = 0x00; | ||
197 | voice->params[1].byampl_env_sustain = 0x7f; | ||
198 | voice->params[1].byampl_env_decay = 0x7f; | ||
199 | } else { | ||
200 | if (woinst->num_voices > 1) { | ||
201 | // Multichannel pcm | ||
202 | voice->params[0].send_dcba=0xff; | ||
203 | voice->params[0].send_hgfe=0; | ||
204 | if (card->is_audigy) { | ||
205 | voice->params[0].send_routing = 0x3f3f3f00 + card->mchannel_fx + voicenum; | ||
206 | voice->params[0].send_routing2 = 0x3f3f3f3f; | ||
207 | } else { | ||
208 | voice->params[0].send_routing = 0xfff0 + card->mchannel_fx + voicenum; | ||
209 | } | ||
210 | |||
211 | } else { | ||
212 | voice->params[0].send_dcba = card->waveout.send_dcba[SEND_MONO]; | ||
213 | voice->params[0].send_hgfe = card->waveout.send_hgfe[SEND_MONO]; | ||
214 | |||
215 | if (woinst->device) { | ||
216 | voice->params[0].send_routing = card->waveout.send_routing[ROUTE_PCM1]; | ||
217 | voice->params[0].send_routing2 = card->waveout.send_routing2[ROUTE_PCM1]; | ||
218 | } else { | ||
219 | voice->params[0].send_routing = card->waveout.send_routing[ROUTE_PCM]; | ||
220 | voice->params[0].send_routing2 = card->waveout.send_routing2[ROUTE_PCM]; | ||
221 | } | ||
222 | } | ||
223 | } | ||
224 | |||
225 | DPD(2, "voice: startloop=%#x, endloop=%#x\n", voice->startloop, voice->endloop); | ||
226 | |||
227 | emu10k1_voice_playback_setup(voice); | ||
228 | |||
229 | return 0; | ||
230 | } | ||
231 | |||
232 | int emu10k1_waveout_open(struct emu10k1_wavedevice *wave_dev) | ||
233 | { | ||
234 | struct emu10k1_card *card = wave_dev->card; | ||
235 | struct woinst *woinst = wave_dev->woinst; | ||
236 | struct waveout_buffer *buffer = &woinst->buffer; | ||
237 | unsigned int voicenum; | ||
238 | u16 delay; | ||
239 | |||
240 | DPF(2, "emu10k1_waveout_open()\n"); | ||
241 | |||
242 | for (voicenum = 0; voicenum < woinst->num_voices; voicenum++) { | ||
243 | if (emu10k1_voice_alloc_buffer(card, &woinst->voice[voicenum].mem, woinst->buffer.pages) < 0) { | ||
244 | ERROR(); | ||
245 | emu10k1_waveout_close(wave_dev); | ||
246 | return -1; | ||
247 | } | ||
248 | |||
249 | if (get_voice(card, woinst, voicenum) < 0) { | ||
250 | ERROR(); | ||
251 | emu10k1_waveout_close(wave_dev); | ||
252 | return -1; | ||
253 | } | ||
254 | } | ||
255 | |||
256 | buffer->fill_silence = 0; | ||
257 | buffer->silence_bytes = 0; | ||
258 | buffer->silence_pos = 0; | ||
259 | buffer->hw_pos = 0; | ||
260 | buffer->free_bytes = woinst->buffer.size; | ||
261 | |||
262 | delay = (48000 * woinst->buffer.fragment_size) / | ||
263 | (woinst->format.samplingrate * woinst->format.bytespervoicesample); | ||
264 | |||
265 | emu10k1_timer_install(card, &woinst->timer, delay); | ||
266 | |||
267 | woinst->state = WAVE_STATE_OPEN; | ||
268 | |||
269 | return 0; | ||
270 | } | ||
271 | |||
272 | void emu10k1_waveout_close(struct emu10k1_wavedevice *wave_dev) | ||
273 | { | ||
274 | struct emu10k1_card *card = wave_dev->card; | ||
275 | struct woinst *woinst = wave_dev->woinst; | ||
276 | unsigned int voicenum; | ||
277 | |||
278 | DPF(2, "emu10k1_waveout_close()\n"); | ||
279 | |||
280 | emu10k1_waveout_stop(wave_dev); | ||
281 | |||
282 | emu10k1_timer_uninstall(card, &woinst->timer); | ||
283 | |||
284 | for (voicenum = 0; voicenum < woinst->num_voices; voicenum++) { | ||
285 | emu10k1_voice_free(&woinst->voice[voicenum]); | ||
286 | emu10k1_voice_free_buffer(card, &woinst->voice[voicenum].mem); | ||
287 | } | ||
288 | |||
289 | woinst->state = WAVE_STATE_CLOSED; | ||
290 | } | ||
291 | |||
292 | void emu10k1_waveout_start(struct emu10k1_wavedevice *wave_dev) | ||
293 | { | ||
294 | struct emu10k1_card *card = wave_dev->card; | ||
295 | struct woinst *woinst = wave_dev->woinst; | ||
296 | struct pt_data *pt = &card->pt; | ||
297 | |||
298 | DPF(2, "emu10k1_waveout_start()\n"); | ||
299 | |||
300 | if (woinst->format.passthrough == 2) { | ||
301 | emu10k1_pt_setup(wave_dev); | ||
302 | sblive_writeptr(card, (card->is_audigy ? A_GPR_BASE : GPR_BASE) + pt->enable_gpr, 0, 1); | ||
303 | pt->state = PT_STATE_PLAYING; | ||
304 | } | ||
305 | |||
306 | /* Actual start */ | ||
307 | emu10k1_voices_start(woinst->voice, woinst->num_voices, woinst->total_played); | ||
308 | |||
309 | emu10k1_timer_enable(card, &woinst->timer); | ||
310 | |||
311 | woinst->state |= WAVE_STATE_STARTED; | ||
312 | } | ||
313 | |||
314 | int emu10k1_waveout_setformat(struct emu10k1_wavedevice *wave_dev, struct wave_format *format) | ||
315 | { | ||
316 | struct emu10k1_card *card = wave_dev->card; | ||
317 | struct woinst *woinst = wave_dev->woinst; | ||
318 | unsigned int voicenum; | ||
319 | u16 delay; | ||
320 | |||
321 | DPF(2, "emu10k1_waveout_setformat()\n"); | ||
322 | |||
323 | if (woinst->state & WAVE_STATE_STARTED) | ||
324 | return -1; | ||
325 | |||
326 | query_format(wave_dev, format); | ||
327 | |||
328 | if (woinst->format.samplingrate != format->samplingrate || | ||
329 | woinst->format.channels != format->channels || | ||
330 | woinst->format.bitsperchannel != format->bitsperchannel) { | ||
331 | |||
332 | woinst->format = *format; | ||
333 | |||
334 | if (woinst->state == WAVE_STATE_CLOSED) | ||
335 | return 0; | ||
336 | |||
337 | emu10k1_timer_uninstall(card, &woinst->timer); | ||
338 | |||
339 | for (voicenum = 0; voicenum < woinst->num_voices; voicenum++) { | ||
340 | emu10k1_voice_free(&woinst->voice[voicenum]); | ||
341 | |||
342 | if (get_voice(card, woinst, voicenum) < 0) { | ||
343 | ERROR(); | ||
344 | emu10k1_waveout_close(wave_dev); | ||
345 | return -1; | ||
346 | } | ||
347 | } | ||
348 | |||
349 | delay = (48000 * woinst->buffer.fragment_size) / | ||
350 | (woinst->format.samplingrate * woinst->format.bytespervoicesample); | ||
351 | |||
352 | emu10k1_timer_install(card, &woinst->timer, delay); | ||
353 | } | ||
354 | |||
355 | return 0; | ||
356 | } | ||
357 | |||
358 | void emu10k1_waveout_stop(struct emu10k1_wavedevice *wave_dev) | ||
359 | { | ||
360 | struct emu10k1_card *card = wave_dev->card; | ||
361 | struct woinst *woinst = wave_dev->woinst; | ||
362 | |||
363 | DPF(2, "emu10k1_waveout_stop()\n"); | ||
364 | |||
365 | if (!(woinst->state & WAVE_STATE_STARTED)) | ||
366 | return; | ||
367 | |||
368 | emu10k1_timer_disable(card, &woinst->timer); | ||
369 | |||
370 | /* Stop actual voices */ | ||
371 | emu10k1_voices_stop(woinst->voice, woinst->num_voices); | ||
372 | |||
373 | emu10k1_waveout_update(woinst); | ||
374 | |||
375 | woinst->state &= ~WAVE_STATE_STARTED; | ||
376 | } | ||
377 | |||
378 | /** | ||
379 | * emu10k1_waveout_getxfersize - | ||
380 | * | ||
381 | * gives the total free bytes on the voice buffer, including silence bytes | ||
382 | * (basically: total_free_bytes = free_bytes + silence_bytes). | ||
383 | * | ||
384 | */ | ||
385 | void emu10k1_waveout_getxfersize(struct woinst *woinst, u32 *total_free_bytes) | ||
386 | { | ||
387 | struct waveout_buffer *buffer = &woinst->buffer; | ||
388 | int pending_bytes; | ||
389 | |||
390 | if (woinst->mmapped) { | ||
391 | *total_free_bytes = buffer->free_bytes; | ||
392 | return; | ||
393 | } | ||
394 | |||
395 | pending_bytes = buffer->size - buffer->free_bytes; | ||
396 | |||
397 | buffer->fill_silence = (pending_bytes < (signed) buffer->fragment_size * 2) ? 1 : 0; | ||
398 | |||
399 | if (pending_bytes > (signed) buffer->silence_bytes) { | ||
400 | *total_free_bytes = (buffer->free_bytes + buffer->silence_bytes); | ||
401 | } else { | ||
402 | *total_free_bytes = buffer->size; | ||
403 | buffer->silence_bytes = pending_bytes; | ||
404 | if (pending_bytes < 0) { | ||
405 | buffer->silence_pos = buffer->hw_pos; | ||
406 | buffer->silence_bytes = 0; | ||
407 | buffer->free_bytes = buffer->size; | ||
408 | DPF(1, "buffer underrun\n"); | ||
409 | } | ||
410 | } | ||
411 | } | ||
412 | |||
413 | /** | ||
414 | * copy_block - | ||
415 | * | ||
416 | * copies a block of pcm data to a voice buffer. | ||
417 | * Notice that the voice buffer is actually a set of disjointed memory pages. | ||
418 | * | ||
419 | */ | ||
420 | static void copy_block(void **dst, u32 str, u8 __user *src, u32 len) | ||
421 | { | ||
422 | unsigned int pg; | ||
423 | unsigned int pgoff; | ||
424 | unsigned int k; | ||
425 | |||
426 | pg = str / PAGE_SIZE; | ||
427 | pgoff = str % PAGE_SIZE; | ||
428 | |||
429 | if (len > PAGE_SIZE - pgoff) { | ||
430 | k = PAGE_SIZE - pgoff; | ||
431 | if (__copy_from_user((u8 *)dst[pg] + pgoff, src, k)) | ||
432 | return; | ||
433 | len -= k; | ||
434 | while (len > PAGE_SIZE) { | ||
435 | if (__copy_from_user(dst[++pg], src + k, PAGE_SIZE)) | ||
436 | return; | ||
437 | k += PAGE_SIZE; | ||
438 | len -= PAGE_SIZE; | ||
439 | } | ||
440 | if (__copy_from_user(dst[++pg], src + k, len)) | ||
441 | return; | ||
442 | |||
443 | } else | ||
444 | __copy_from_user((u8 *)dst[pg] + pgoff, src, len); | ||
445 | } | ||
446 | |||
447 | /** | ||
448 | * copy_ilv_block - | ||
449 | * | ||
450 | * copies a block of pcm data containing n interleaved channels to n mono voice buffers. | ||
451 | * Notice that the voice buffer is actually a set of disjointed memory pages. | ||
452 | * | ||
453 | */ | ||
454 | static void copy_ilv_block(struct woinst *woinst, u32 str, u8 __user *src, u32 len) | ||
455 | { | ||
456 | unsigned int pg; | ||
457 | unsigned int pgoff; | ||
458 | unsigned int voice_num; | ||
459 | struct emu_voice *voice = woinst->voice; | ||
460 | |||
461 | pg = str / PAGE_SIZE; | ||
462 | pgoff = str % PAGE_SIZE; | ||
463 | |||
464 | while (len) { | ||
465 | for (voice_num = 0; voice_num < woinst->num_voices; voice_num++) { | ||
466 | if (__copy_from_user((u8 *)(voice[voice_num].mem.addr[pg]) + pgoff, src, woinst->format.bytespervoicesample)) | ||
467 | return; | ||
468 | src += woinst->format.bytespervoicesample; | ||
469 | } | ||
470 | |||
471 | len -= woinst->format.bytespervoicesample; | ||
472 | |||
473 | pgoff += woinst->format.bytespervoicesample; | ||
474 | if (pgoff >= PAGE_SIZE) { | ||
475 | pgoff = 0; | ||
476 | pg++; | ||
477 | } | ||
478 | } | ||
479 | } | ||
480 | |||
481 | /** | ||
482 | * fill_block - | ||
483 | * | ||
484 | * fills a set voice buffers with a block of a given sample. | ||
485 | * | ||
486 | */ | ||
487 | static void fill_block(struct woinst *woinst, u32 str, u8 data, u32 len) | ||
488 | { | ||
489 | unsigned int pg; | ||
490 | unsigned int pgoff; | ||
491 | unsigned int voice_num; | ||
492 | struct emu_voice *voice = woinst->voice; | ||
493 | unsigned int k; | ||
494 | |||
495 | pg = str / PAGE_SIZE; | ||
496 | pgoff = str % PAGE_SIZE; | ||
497 | |||
498 | if (len > PAGE_SIZE - pgoff) { | ||
499 | k = PAGE_SIZE - pgoff; | ||
500 | for (voice_num = 0; voice_num < woinst->num_voices; voice_num++) | ||
501 | memset((u8 *)voice[voice_num].mem.addr[pg] + pgoff, data, k); | ||
502 | len -= k; | ||
503 | while (len > PAGE_SIZE) { | ||
504 | pg++; | ||
505 | for (voice_num = 0; voice_num < woinst->num_voices; voice_num++) | ||
506 | memset(voice[voice_num].mem.addr[pg], data, PAGE_SIZE); | ||
507 | |||
508 | len -= PAGE_SIZE; | ||
509 | } | ||
510 | pg++; | ||
511 | for (voice_num = 0; voice_num < woinst->num_voices; voice_num++) | ||
512 | memset(voice[voice_num].mem.addr[pg], data, len); | ||
513 | |||
514 | } else { | ||
515 | for (voice_num = 0; voice_num < woinst->num_voices; voice_num++) | ||
516 | memset((u8 *)voice[voice_num].mem.addr[pg] + pgoff, data, len); | ||
517 | } | ||
518 | } | ||
519 | |||
520 | /** | ||
521 | * emu10k1_waveout_xferdata - | ||
522 | * | ||
523 | * copies pcm data to the voice buffer. Silence samples | ||
524 | * previously added to the buffer are overwritten. | ||
525 | * | ||
526 | */ | ||
527 | void emu10k1_waveout_xferdata(struct woinst *woinst, u8 __user *data, u32 *size) | ||
528 | { | ||
529 | struct waveout_buffer *buffer = &woinst->buffer; | ||
530 | struct voice_mem *mem = &woinst->voice[0].mem; | ||
531 | u32 sizetocopy, sizetocopy_now, start; | ||
532 | unsigned long flags; | ||
533 | |||
534 | sizetocopy = min_t(u32, buffer->size, *size); | ||
535 | *size = sizetocopy; | ||
536 | |||
537 | if (!sizetocopy) | ||
538 | return; | ||
539 | |||
540 | spin_lock_irqsave(&woinst->lock, flags); | ||
541 | start = (buffer->size + buffer->silence_pos - buffer->silence_bytes) % buffer->size; | ||
542 | |||
543 | if (sizetocopy > buffer->silence_bytes) { | ||
544 | buffer->silence_pos += sizetocopy - buffer->silence_bytes; | ||
545 | buffer->free_bytes -= sizetocopy - buffer->silence_bytes; | ||
546 | buffer->silence_bytes = 0; | ||
547 | } else | ||
548 | buffer->silence_bytes -= sizetocopy; | ||
549 | |||
550 | spin_unlock_irqrestore(&woinst->lock, flags); | ||
551 | |||
552 | sizetocopy_now = buffer->size - start; | ||
553 | if (sizetocopy > sizetocopy_now) { | ||
554 | sizetocopy -= sizetocopy_now; | ||
555 | if (woinst->num_voices > 1) { | ||
556 | copy_ilv_block(woinst, start, data, sizetocopy_now); | ||
557 | copy_ilv_block(woinst, 0, data + sizetocopy_now * woinst->num_voices, sizetocopy); | ||
558 | } else { | ||
559 | copy_block(mem->addr, start, data, sizetocopy_now); | ||
560 | copy_block(mem->addr, 0, data + sizetocopy_now, sizetocopy); | ||
561 | } | ||
562 | } else { | ||
563 | if (woinst->num_voices > 1) | ||
564 | copy_ilv_block(woinst, start, data, sizetocopy); | ||
565 | else | ||
566 | copy_block(mem->addr, start, data, sizetocopy); | ||
567 | } | ||
568 | } | ||
569 | |||
570 | /** | ||
571 | * emu10k1_waveout_fillsilence - | ||
572 | * | ||
573 | * adds samples of silence to the voice buffer so that we | ||
574 | * don't loop over stale pcm data. | ||
575 | * | ||
576 | */ | ||
577 | void emu10k1_waveout_fillsilence(struct woinst *woinst) | ||
578 | { | ||
579 | struct waveout_buffer *buffer = &woinst->buffer; | ||
580 | u32 sizetocopy, sizetocopy_now, start; | ||
581 | u8 filldata; | ||
582 | unsigned long flags; | ||
583 | |||
584 | sizetocopy = buffer->fragment_size; | ||
585 | |||
586 | if (woinst->format.bitsperchannel == 16) | ||
587 | filldata = 0x00; | ||
588 | else | ||
589 | filldata = 0x80; | ||
590 | |||
591 | spin_lock_irqsave(&woinst->lock, flags); | ||
592 | buffer->silence_bytes += sizetocopy; | ||
593 | buffer->free_bytes -= sizetocopy; | ||
594 | buffer->silence_pos %= buffer->size; | ||
595 | start = buffer->silence_pos; | ||
596 | buffer->silence_pos += sizetocopy; | ||
597 | spin_unlock_irqrestore(&woinst->lock, flags); | ||
598 | |||
599 | sizetocopy_now = buffer->size - start; | ||
600 | |||
601 | if (sizetocopy > sizetocopy_now) { | ||
602 | sizetocopy -= sizetocopy_now; | ||
603 | fill_block(woinst, start, filldata, sizetocopy_now); | ||
604 | fill_block(woinst, 0, filldata, sizetocopy); | ||
605 | } else { | ||
606 | fill_block(woinst, start, filldata, sizetocopy); | ||
607 | } | ||
608 | } | ||
609 | |||
610 | /** | ||
611 | * emu10k1_waveout_update - | ||
612 | * | ||
613 | * updates the position of the voice buffer hardware pointer (hw_pos) | ||
614 | * and the number of free bytes on the buffer (free_bytes). | ||
615 | * The free bytes _don't_ include silence bytes that may have been | ||
616 | * added to the buffer. | ||
617 | * | ||
618 | */ | ||
619 | void emu10k1_waveout_update(struct woinst *woinst) | ||
620 | { | ||
621 | u32 hw_pos; | ||
622 | u32 diff; | ||
623 | |||
624 | /* There is no actual start yet */ | ||
625 | if (!(woinst->state & WAVE_STATE_STARTED)) { | ||
626 | hw_pos = woinst->buffer.hw_pos; | ||
627 | } else { | ||
628 | /* hw_pos in sample units */ | ||
629 | hw_pos = sblive_readptr(woinst->voice[0].card, CCCA_CURRADDR, woinst->voice[0].num); | ||
630 | |||
631 | if(hw_pos < woinst->voice[0].start) | ||
632 | hw_pos += woinst->buffer.size / woinst->format.bytespervoicesample - woinst->voice[0].start; | ||
633 | else | ||
634 | hw_pos -= woinst->voice[0].start; | ||
635 | |||
636 | hw_pos *= woinst->format.bytespervoicesample; | ||
637 | } | ||
638 | |||
639 | diff = (woinst->buffer.size + hw_pos - woinst->buffer.hw_pos) % woinst->buffer.size; | ||
640 | woinst->total_played += diff; | ||
641 | woinst->buffer.free_bytes += diff; | ||
642 | woinst->buffer.hw_pos = hw_pos; | ||
643 | } | ||