1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
4 | * Lee Revell <rlrevell@joe-job.com> |
5 | * James Courtier-Dutton <James@superbug.co.uk> |
6 | * Oswald Buddenhagen <oswald.buddenhagen@gmx.de> |
7 | * Creative Labs, Inc. |
8 | * |
9 | * Routines for control of EMU10K1 chips / PCM routines |
10 | */ |
11 | |
12 | #include <linux/pci.h> |
13 | #include <linux/delay.h> |
14 | #include <linux/slab.h> |
15 | #include <linux/time.h> |
16 | #include <linux/init.h> |
17 | #include <sound/core.h> |
18 | #include <sound/emu10k1.h> |
19 | |
20 | static void snd_emu10k1_pcm_interrupt(struct snd_emu10k1 *emu, |
21 | struct snd_emu10k1_voice *voice) |
22 | { |
23 | struct snd_emu10k1_pcm *epcm; |
24 | |
25 | epcm = voice->epcm; |
26 | if (!epcm) |
27 | return; |
28 | if (epcm->substream == NULL) |
29 | return; |
30 | #if 0 |
31 | dev_dbg(emu->card->dev, |
32 | "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n" , |
33 | epcm->substream->runtime->hw->pointer(emu, epcm->substream), |
34 | snd_pcm_lib_period_bytes(epcm->substream), |
35 | snd_pcm_lib_buffer_bytes(epcm->substream)); |
36 | #endif |
37 | snd_pcm_period_elapsed(substream: epcm->substream); |
38 | } |
39 | |
40 | static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu, |
41 | unsigned int status) |
42 | { |
43 | #if 0 |
44 | if (status & IPR_ADCBUFHALFFULL) { |
45 | if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) |
46 | return; |
47 | } |
48 | #endif |
49 | snd_pcm_period_elapsed(substream: emu->pcm_capture_substream); |
50 | } |
51 | |
52 | static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu, |
53 | unsigned int status) |
54 | { |
55 | #if 0 |
56 | if (status & IPR_MICBUFHALFFULL) { |
57 | if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) |
58 | return; |
59 | } |
60 | #endif |
61 | snd_pcm_period_elapsed(substream: emu->pcm_capture_mic_substream); |
62 | } |
63 | |
64 | static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu, |
65 | unsigned int status) |
66 | { |
67 | #if 0 |
68 | if (status & IPR_EFXBUFHALFFULL) { |
69 | if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) |
70 | return; |
71 | } |
72 | #endif |
73 | snd_pcm_period_elapsed(substream: emu->pcm_capture_efx_substream); |
74 | } |
75 | |
76 | static void snd_emu10k1_pcm_free_voices(struct snd_emu10k1_pcm *epcm) |
77 | { |
78 | for (unsigned i = 0; i < ARRAY_SIZE(epcm->voices); i++) { |
79 | if (epcm->voices[i]) { |
80 | snd_emu10k1_voice_free(emu: epcm->emu, pvoice: epcm->voices[i]); |
81 | epcm->voices[i] = NULL; |
82 | } |
83 | } |
84 | } |
85 | |
86 | static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm *epcm, |
87 | int type, int count, int channels) |
88 | { |
89 | int err; |
90 | |
91 | snd_emu10k1_pcm_free_voices(epcm); |
92 | |
93 | err = snd_emu10k1_voice_alloc(emu: epcm->emu, |
94 | type, count, channels, |
95 | epcm, rvoice: &epcm->voices[0]); |
96 | if (err < 0) |
97 | return err; |
98 | |
99 | if (epcm->extra == NULL) { |
100 | // The hardware supports only (half-)loop interrupts, so to support an |
101 | // arbitrary number of periods per buffer, we use an extra voice with a |
102 | // period-sized loop as the interrupt source. Additionally, the interrupt |
103 | // timing of the hardware is "suboptimal" and needs some compensation. |
104 | err = snd_emu10k1_voice_alloc(emu: epcm->emu, |
105 | type: type + 1, count: 1, channels: 1, |
106 | epcm, rvoice: &epcm->extra); |
107 | if (err < 0) { |
108 | /* |
109 | dev_dbg(emu->card->dev, "pcm_channel_alloc: " |
110 | "failed extra: voices=%d, frame=%d\n", |
111 | voices, frame); |
112 | */ |
113 | snd_emu10k1_pcm_free_voices(epcm); |
114 | return err; |
115 | } |
116 | epcm->extra->interrupt = snd_emu10k1_pcm_interrupt; |
117 | } |
118 | |
119 | return 0; |
120 | } |
121 | |
122 | // Primes 2-7 and 2^n multiples thereof, up to 16. |
123 | static const unsigned int efx_capture_channels[] = { |
124 | 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16 |
125 | }; |
126 | |
127 | static const struct snd_pcm_hw_constraint_list hw_constraints_efx_capture_channels = { |
128 | .count = ARRAY_SIZE(efx_capture_channels), |
129 | .list = efx_capture_channels, |
130 | .mask = 0 |
131 | }; |
132 | |
133 | static const unsigned int capture_buffer_sizes[31] = { |
134 | 384, 448, 512, 640, |
135 | 384*2, 448*2, 512*2, 640*2, |
136 | 384*4, 448*4, 512*4, 640*4, |
137 | 384*8, 448*8, 512*8, 640*8, |
138 | 384*16, 448*16, 512*16, 640*16, |
139 | 384*32, 448*32, 512*32, 640*32, |
140 | 384*64, 448*64, 512*64, 640*64, |
141 | 384*128,448*128,512*128 |
142 | }; |
143 | |
144 | static const struct snd_pcm_hw_constraint_list hw_constraints_capture_buffer_sizes = { |
145 | .count = 31, |
146 | .list = capture_buffer_sizes, |
147 | .mask = 0 |
148 | }; |
149 | |
150 | static const unsigned int capture_rates[8] = { |
151 | 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000 |
152 | }; |
153 | |
154 | static const struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = { |
155 | .count = 8, |
156 | .list = capture_rates, |
157 | .mask = 0 |
158 | }; |
159 | |
160 | static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate) |
161 | { |
162 | switch (rate) { |
163 | case 8000: return ADCCR_SAMPLERATE_8; |
164 | case 11025: return ADCCR_SAMPLERATE_11; |
165 | case 16000: return ADCCR_SAMPLERATE_16; |
166 | case 22050: return ADCCR_SAMPLERATE_22; |
167 | case 24000: return ADCCR_SAMPLERATE_24; |
168 | case 32000: return ADCCR_SAMPLERATE_32; |
169 | case 44100: return ADCCR_SAMPLERATE_44; |
170 | case 48000: return ADCCR_SAMPLERATE_48; |
171 | default: |
172 | snd_BUG(); |
173 | return ADCCR_SAMPLERATE_8; |
174 | } |
175 | } |
176 | |
177 | static const unsigned int audigy_capture_rates[9] = { |
178 | 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 |
179 | }; |
180 | |
181 | static const struct snd_pcm_hw_constraint_list hw_constraints_audigy_capture_rates = { |
182 | .count = 9, |
183 | .list = audigy_capture_rates, |
184 | .mask = 0 |
185 | }; |
186 | |
187 | static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate) |
188 | { |
189 | switch (rate) { |
190 | case 8000: return A_ADCCR_SAMPLERATE_8; |
191 | case 11025: return A_ADCCR_SAMPLERATE_11; |
192 | case 12000: return A_ADCCR_SAMPLERATE_12; |
193 | case 16000: return ADCCR_SAMPLERATE_16; |
194 | case 22050: return ADCCR_SAMPLERATE_22; |
195 | case 24000: return ADCCR_SAMPLERATE_24; |
196 | case 32000: return ADCCR_SAMPLERATE_32; |
197 | case 44100: return ADCCR_SAMPLERATE_44; |
198 | case 48000: return ADCCR_SAMPLERATE_48; |
199 | default: |
200 | snd_BUG(); |
201 | return A_ADCCR_SAMPLERATE_8; |
202 | } |
203 | } |
204 | |
205 | static void snd_emu10k1_constrain_capture_rates(struct snd_emu10k1 *emu, |
206 | struct snd_pcm_runtime *runtime) |
207 | { |
208 | if (emu->card_capabilities->emu_model && |
209 | emu->emu1010.word_clock == 44100) { |
210 | // This also sets the rate constraint by deleting SNDRV_PCM_RATE_KNOT |
211 | runtime->hw.rates = SNDRV_PCM_RATE_11025 | \ |
212 | SNDRV_PCM_RATE_22050 | \ |
213 | SNDRV_PCM_RATE_44100; |
214 | runtime->hw.rate_min = 11025; |
215 | runtime->hw.rate_max = 44100; |
216 | return; |
217 | } |
218 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE, |
219 | l: emu->audigy ? &hw_constraints_audigy_capture_rates : |
220 | &hw_constraints_capture_rates); |
221 | } |
222 | |
223 | static void snd_emu1010_constrain_efx_rate(struct snd_emu10k1 *emu, |
224 | struct snd_pcm_runtime *runtime) |
225 | { |
226 | int rate; |
227 | |
228 | rate = emu->emu1010.word_clock; |
229 | runtime->hw.rate_min = runtime->hw.rate_max = rate; |
230 | runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate); |
231 | } |
232 | |
233 | static unsigned int emu10k1_calc_pitch_target(unsigned int rate) |
234 | { |
235 | unsigned int pitch_target; |
236 | |
237 | pitch_target = (rate << 8) / 375; |
238 | pitch_target = (pitch_target >> 1) + (pitch_target & 1); |
239 | return pitch_target; |
240 | } |
241 | |
242 | #define PITCH_48000 0x00004000 |
243 | #define PITCH_96000 0x00008000 |
244 | #define PITCH_85000 0x00007155 |
245 | #define PITCH_80726 0x00006ba2 |
246 | #define PITCH_67882 0x00005a82 |
247 | #define PITCH_57081 0x00004c1c |
248 | |
249 | static unsigned int emu10k1_select_interprom(unsigned int pitch_target) |
250 | { |
251 | if (pitch_target == PITCH_48000) |
252 | return CCCA_INTERPROM_0; |
253 | else if (pitch_target < PITCH_48000) |
254 | return CCCA_INTERPROM_1; |
255 | else if (pitch_target >= PITCH_96000) |
256 | return CCCA_INTERPROM_0; |
257 | else if (pitch_target >= PITCH_85000) |
258 | return CCCA_INTERPROM_6; |
259 | else if (pitch_target >= PITCH_80726) |
260 | return CCCA_INTERPROM_5; |
261 | else if (pitch_target >= PITCH_67882) |
262 | return CCCA_INTERPROM_4; |
263 | else if (pitch_target >= PITCH_57081) |
264 | return CCCA_INTERPROM_3; |
265 | else |
266 | return CCCA_INTERPROM_2; |
267 | } |
268 | |
269 | static u16 emu10k1_send_target_from_amount(u8 amount) |
270 | { |
271 | static const u8 shifts[8] = { 4, 4, 5, 6, 7, 8, 9, 10 }; |
272 | static const u16 offsets[8] = { 0, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000 }; |
273 | u8 exp; |
274 | |
275 | if (amount == 0xff) |
276 | return 0xffff; |
277 | exp = amount >> 5; |
278 | return ((amount & 0x1f) << shifts[exp]) + offsets[exp]; |
279 | } |
280 | |
281 | static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, |
282 | struct snd_emu10k1_voice *evoice, |
283 | bool w_16, bool stereo, |
284 | unsigned int start_addr, |
285 | unsigned int end_addr, |
286 | const unsigned char *send_routing, |
287 | const unsigned char *send_amount) |
288 | { |
289 | unsigned int silent_page; |
290 | int voice; |
291 | |
292 | voice = evoice->number; |
293 | |
294 | silent_page = ((unsigned int)emu->silent_page.addr << emu->address_mode) | |
295 | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); |
296 | snd_emu10k1_ptr_write_multiple(emu, chn: voice, |
297 | // Not really necessary for the slave, but it doesn't hurt |
298 | CPF, stereo ? CPF_STEREO_MASK : 0, |
299 | // Assumption that PT is already 0 so no harm overwriting |
300 | PTRX, (send_amount[0] << 8) | send_amount[1], |
301 | // Stereo slaves don't need to have the addresses set, but it doesn't hurt |
302 | DSL, end_addr | (send_amount[3] << 24), |
303 | PSST, start_addr | (send_amount[2] << 24), |
304 | CCCA, emu10k1_select_interprom(pitch_target: evoice->epcm->pitch_target) | |
305 | (w_16 ? 0 : CCCA_8BITSELECT), |
306 | // Clear filter delay memory |
307 | Z1, 0, |
308 | Z2, 0, |
309 | // Invalidate maps |
310 | MAPA, silent_page, |
311 | MAPB, silent_page, |
312 | // Disable filter (in conjunction with CCCA_RESONANCE == 0) |
313 | VTFT, VTFT_FILTERTARGET_MASK, |
314 | CVCF, CVCF_CURRENTFILTER_MASK, |
315 | REGLIST_END); |
316 | // Setup routing |
317 | if (emu->audigy) { |
318 | snd_emu10k1_ptr_write_multiple(emu, chn: voice, |
319 | A_FXRT1, snd_emu10k1_compose_audigy_fxrt1(send_routing), |
320 | A_FXRT2, snd_emu10k1_compose_audigy_fxrt2(send_routing), |
321 | A_SENDAMOUNTS, snd_emu10k1_compose_audigy_sendamounts(send_amount), |
322 | REGLIST_END); |
323 | for (int i = 0; i < 4; i++) { |
324 | u32 aml = emu10k1_send_target_from_amount(amount: send_amount[2 * i]); |
325 | u32 amh = emu10k1_send_target_from_amount(amount: send_amount[2 * i + 1]); |
326 | snd_emu10k1_ptr_write(emu, A_CSBA + i, chn: voice, data: (amh << 16) | aml); |
327 | } |
328 | } else { |
329 | snd_emu10k1_ptr_write(emu, FXRT, chn: voice, |
330 | snd_emu10k1_compose_send_routing(send_routing)); |
331 | } |
332 | |
333 | emu->voices[voice].dirty = 1; |
334 | } |
335 | |
336 | static void snd_emu10k1_pcm_init_voices(struct snd_emu10k1 *emu, |
337 | struct snd_emu10k1_voice *evoice, |
338 | bool w_16, bool stereo, |
339 | unsigned int start_addr, |
340 | unsigned int end_addr, |
341 | struct snd_emu10k1_pcm_mixer *mix) |
342 | { |
343 | spin_lock_irq(lock: &emu->reg_lock); |
344 | snd_emu10k1_pcm_init_voice(emu, evoice, w_16, stereo, |
345 | start_addr, end_addr, |
346 | send_routing: &mix->send_routing[stereo][0], |
347 | send_amount: &mix->send_volume[stereo][0]); |
348 | if (stereo) |
349 | snd_emu10k1_pcm_init_voice(emu, evoice: evoice + 1, w_16, stereo: true, |
350 | start_addr, end_addr, |
351 | send_routing: &mix->send_routing[2][0], |
352 | send_amount: &mix->send_volume[2][0]); |
353 | spin_unlock_irq(lock: &emu->reg_lock); |
354 | } |
355 | |
356 | static void (struct snd_emu10k1 *emu, |
357 | struct snd_emu10k1_voice *evoice, |
358 | bool w_16, |
359 | unsigned int start_addr, |
360 | unsigned int end_addr) |
361 | { |
362 | static const unsigned char send_routing[8] = { 0, 1, 2, 3, 4, 5, 6, 7 }; |
363 | static const unsigned char send_amount[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; |
364 | |
365 | snd_emu10k1_pcm_init_voice(emu, evoice, w_16, stereo: false, |
366 | start_addr, end_addr, |
367 | send_routing, send_amount); |
368 | } |
369 | |
370 | static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream, |
371 | struct snd_pcm_hw_params *hw_params) |
372 | { |
373 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
374 | struct snd_pcm_runtime *runtime = substream->runtime; |
375 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
376 | size_t alloc_size; |
377 | int type, channels, count; |
378 | int err; |
379 | |
380 | if (epcm->type == PLAYBACK_EMUVOICE) { |
381 | type = EMU10K1_PCM; |
382 | channels = 1; |
383 | count = params_channels(p: hw_params); |
384 | } else { |
385 | type = EMU10K1_EFX; |
386 | channels = params_channels(p: hw_params); |
387 | count = 1; |
388 | } |
389 | err = snd_emu10k1_pcm_channel_alloc(epcm, type, count, channels); |
390 | if (err < 0) |
391 | return err; |
392 | |
393 | alloc_size = params_buffer_bytes(p: hw_params); |
394 | if (emu->iommu_workaround) |
395 | alloc_size += EMUPAGESIZE; |
396 | err = snd_pcm_lib_malloc_pages(substream, size: alloc_size); |
397 | if (err < 0) |
398 | return err; |
399 | if (emu->iommu_workaround && runtime->dma_bytes >= EMUPAGESIZE) |
400 | runtime->dma_bytes -= EMUPAGESIZE; |
401 | if (err > 0) { /* change */ |
402 | int mapped; |
403 | if (epcm->memblk != NULL) |
404 | snd_emu10k1_free_pages(emu, blk: epcm->memblk); |
405 | epcm->memblk = snd_emu10k1_alloc_pages(emu, substream); |
406 | epcm->start_addr = 0; |
407 | if (! epcm->memblk) |
408 | return -ENOMEM; |
409 | mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page; |
410 | if (mapped < 0) |
411 | return -ENOMEM; |
412 | epcm->start_addr = mapped << PAGE_SHIFT; |
413 | } |
414 | return 0; |
415 | } |
416 | |
417 | static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream) |
418 | { |
419 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
420 | struct snd_pcm_runtime *runtime = substream->runtime; |
421 | struct snd_emu10k1_pcm *epcm; |
422 | |
423 | if (runtime->private_data == NULL) |
424 | return 0; |
425 | epcm = runtime->private_data; |
426 | if (epcm->extra) { |
427 | snd_emu10k1_voice_free(emu: epcm->emu, pvoice: epcm->extra); |
428 | epcm->extra = NULL; |
429 | } |
430 | snd_emu10k1_pcm_free_voices(epcm); |
431 | if (epcm->memblk) { |
432 | snd_emu10k1_free_pages(emu, blk: epcm->memblk); |
433 | epcm->memblk = NULL; |
434 | epcm->start_addr = 0; |
435 | } |
436 | snd_pcm_lib_free_pages(substream); |
437 | return 0; |
438 | } |
439 | |
440 | static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream) |
441 | { |
442 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
443 | struct snd_pcm_runtime *runtime = substream->runtime; |
444 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
445 | bool w_16 = snd_pcm_format_width(format: runtime->format) == 16; |
446 | bool stereo = runtime->channels == 2; |
447 | unsigned int start_addr, end_addr; |
448 | unsigned int rate; |
449 | |
450 | rate = runtime->rate; |
451 | if (emu->card_capabilities->emu_model && |
452 | emu->emu1010.word_clock == 44100) |
453 | rate = rate * 480 / 441; |
454 | epcm->pitch_target = emu10k1_calc_pitch_target(rate); |
455 | |
456 | start_addr = epcm->start_addr >> w_16; |
457 | end_addr = start_addr + runtime->period_size; |
458 | snd_emu10k1_pcm_init_extra_voice(emu, evoice: epcm->extra, w_16, |
459 | start_addr, end_addr); |
460 | start_addr >>= stereo; |
461 | epcm->ccca_start_addr = start_addr; |
462 | end_addr = start_addr + runtime->buffer_size; |
463 | snd_emu10k1_pcm_init_voices(emu, evoice: epcm->voices[0], w_16, stereo, |
464 | start_addr, end_addr, |
465 | mix: &emu->pcm_mixer[substream->number]); |
466 | |
467 | return 0; |
468 | } |
469 | |
470 | static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream) |
471 | { |
472 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
473 | struct snd_pcm_runtime *runtime = substream->runtime; |
474 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
475 | unsigned int start_addr; |
476 | unsigned int , channel_size; |
477 | unsigned int i; |
478 | |
479 | epcm->pitch_target = PITCH_48000; |
480 | |
481 | start_addr = epcm->start_addr >> 1; // 16-bit voices |
482 | |
483 | extra_size = runtime->period_size; |
484 | channel_size = runtime->buffer_size; |
485 | |
486 | snd_emu10k1_pcm_init_extra_voice(emu, evoice: epcm->extra, w_16: true, |
487 | start_addr, end_addr: start_addr + extra_size); |
488 | |
489 | epcm->ccca_start_addr = start_addr; |
490 | for (i = 0; i < runtime->channels; i++) { |
491 | snd_emu10k1_pcm_init_voices(emu, evoice: epcm->voices[i], w_16: true, stereo: false, |
492 | start_addr, end_addr: start_addr + channel_size, |
493 | mix: &emu->efx_pcm_mixer[i]); |
494 | start_addr += channel_size; |
495 | } |
496 | |
497 | return 0; |
498 | } |
499 | |
500 | static const struct snd_pcm_hardware snd_emu10k1_efx_playback = |
501 | { |
502 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED | |
503 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
504 | SNDRV_PCM_INFO_RESUME | |
505 | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), |
506 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
507 | .rates = SNDRV_PCM_RATE_48000, |
508 | .rate_min = 48000, |
509 | .rate_max = 48000, |
510 | .channels_min = 1, |
511 | .channels_max = NUM_EFX_PLAYBACK, |
512 | .buffer_bytes_max = (128*1024), |
513 | .period_bytes_max = (128*1024), |
514 | .periods_min = 2, |
515 | .periods_max = 1024, |
516 | .fifo_size = 0, |
517 | }; |
518 | |
519 | static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream) |
520 | { |
521 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
522 | struct snd_pcm_runtime *runtime = substream->runtime; |
523 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
524 | int idx; |
525 | |
526 | /* zeroing the buffer size will stop capture */ |
527 | snd_emu10k1_ptr_write(emu, reg: epcm->capture_bs_reg, chn: 0, data: 0); |
528 | switch (epcm->type) { |
529 | case CAPTURE_AC97ADC: |
530 | snd_emu10k1_ptr_write(emu, ADCCR, chn: 0, data: 0); |
531 | break; |
532 | case CAPTURE_EFX: |
533 | if (emu->card_capabilities->emu_model) { |
534 | // The upper 32 16-bit capture voices, two for each of the 16 32-bit channels. |
535 | // The lower voices are occupied by A_EXTOUT_*_CAP*. |
536 | epcm->capture_cr_val = 0; |
537 | epcm->capture_cr_val2 = 0xffffffff >> (32 - runtime->channels * 2); |
538 | } |
539 | if (emu->audigy) { |
540 | snd_emu10k1_ptr_write_multiple(emu, chn: 0, |
541 | A_FXWC1, 0, |
542 | A_FXWC2, 0, |
543 | REGLIST_END); |
544 | } else |
545 | snd_emu10k1_ptr_write(emu, FXWC, chn: 0, data: 0); |
546 | break; |
547 | default: |
548 | break; |
549 | } |
550 | snd_emu10k1_ptr_write(emu, reg: epcm->capture_ba_reg, chn: 0, data: runtime->dma_addr); |
551 | epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream); |
552 | epcm->capture_bs_val = 0; |
553 | for (idx = 0; idx < 31; idx++) { |
554 | if (capture_buffer_sizes[idx] == epcm->capture_bufsize) { |
555 | epcm->capture_bs_val = idx + 1; |
556 | break; |
557 | } |
558 | } |
559 | if (epcm->capture_bs_val == 0) { |
560 | snd_BUG(); |
561 | epcm->capture_bs_val++; |
562 | } |
563 | if (epcm->type == CAPTURE_AC97ADC) { |
564 | unsigned rate = runtime->rate; |
565 | if (!(runtime->hw.rates & SNDRV_PCM_RATE_48000)) |
566 | rate = rate * 480 / 441; |
567 | |
568 | epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE; |
569 | if (runtime->channels > 1) |
570 | epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE; |
571 | epcm->capture_cr_val |= emu->audigy ? |
572 | snd_emu10k1_audigy_capture_rate_reg(rate) : |
573 | snd_emu10k1_capture_rate_reg(rate); |
574 | } |
575 | return 0; |
576 | } |
577 | |
578 | static void snd_emu10k1_playback_fill_cache(struct snd_emu10k1 *emu, |
579 | unsigned voice, |
580 | u32 sample, bool stereo) |
581 | { |
582 | u32 ccr; |
583 | |
584 | // We assume that the cache is resting at this point (i.e., |
585 | // CCR_CACHEINVALIDSIZE is very small). |
586 | |
587 | // Clear leading frames. For simplicitly, this does too much, |
588 | // except for 16-bit stereo. And the interpolator will actually |
589 | // access them at all only when we're pitch-shifting. |
590 | for (int i = 0; i < 3; i++) |
591 | snd_emu10k1_ptr_write(emu, CD0 + i, chn: voice, data: sample); |
592 | |
593 | // Fill cache |
594 | ccr = (64 - 3) << REG_SHIFT(CCR_CACHEINVALIDSIZE); |
595 | if (stereo) { |
596 | // The engine goes haywire if CCR_READADDRESS is out of sync |
597 | snd_emu10k1_ptr_write(emu, CCR, chn: voice + 1, data: ccr); |
598 | } |
599 | snd_emu10k1_ptr_write(emu, CCR, chn: voice, data: ccr); |
600 | } |
601 | |
602 | static void snd_emu10k1_playback_prepare_voices(struct snd_emu10k1 *emu, |
603 | struct snd_emu10k1_pcm *epcm, |
604 | bool w_16, bool stereo, |
605 | int channels) |
606 | { |
607 | struct snd_pcm_substream *substream = epcm->substream; |
608 | struct snd_pcm_runtime *runtime = substream->runtime; |
609 | unsigned eloop_start = epcm->start_addr >> w_16; |
610 | unsigned loop_start = eloop_start >> stereo; |
611 | unsigned eloop_size = runtime->period_size; |
612 | unsigned loop_size = runtime->buffer_size; |
613 | u32 sample = w_16 ? 0 : 0x80808080; |
614 | |
615 | // To make the playback actually start at the 1st frame, |
616 | // we need to compensate for two circumstances: |
617 | // - The actual position is delayed by the cache size (64 frames) |
618 | // - The interpolator is centered around the 4th frame |
619 | loop_start += (epcm->resume_pos + 64 - 3) % loop_size; |
620 | for (int i = 0; i < channels; i++) { |
621 | unsigned voice = epcm->voices[i]->number; |
622 | snd_emu10k1_ptr_write(emu, reg: CCCA_CURRADDR, chn: voice, data: loop_start); |
623 | loop_start += loop_size; |
624 | snd_emu10k1_playback_fill_cache(emu, voice, sample, stereo); |
625 | } |
626 | |
627 | // The interrupt is triggered when CCCA_CURRADDR (CA) wraps around, |
628 | // which is ahead of the actual playback position, so the interrupt |
629 | // source needs to be delayed. |
630 | // |
631 | // In principle, this wouldn't need to be the cache's entire size - in |
632 | // practice, CCR_CACHEINVALIDSIZE (CIS) > `fetch threshold` has never |
633 | // been observed, and assuming 40 _bytes_ should be safe. |
634 | // |
635 | // The cache fills are somewhat random, which makes it impossible to |
636 | // align them with the interrupts. This makes a non-delayed interrupt |
637 | // source not practical, as the interrupt handler would have to wait |
638 | // for (CA - CIS) >= period_boundary for every channel in the stream. |
639 | // |
640 | // This is why all other (open) drivers for these chips use timer-based |
641 | // interrupts. |
642 | // |
643 | eloop_start += (epcm->resume_pos + eloop_size - 3) % eloop_size; |
644 | snd_emu10k1_ptr_write(emu, reg: CCCA_CURRADDR, chn: epcm->extra->number, data: eloop_start); |
645 | |
646 | // It takes a moment until the cache fills complete, |
647 | // but the unmuting takes long enough for that. |
648 | } |
649 | |
650 | static void snd_emu10k1_playback_commit_volume(struct snd_emu10k1 *emu, |
651 | struct snd_emu10k1_voice *evoice, |
652 | unsigned int vattn) |
653 | { |
654 | snd_emu10k1_ptr_write_multiple(emu, chn: evoice->number, |
655 | VTFT, vattn | VTFT_FILTERTARGET_MASK, |
656 | CVCF, vattn | CVCF_CURRENTFILTER_MASK, |
657 | REGLIST_END); |
658 | } |
659 | |
660 | static void snd_emu10k1_playback_unmute_voice(struct snd_emu10k1 *emu, |
661 | struct snd_emu10k1_voice *evoice, |
662 | bool stereo, bool master, |
663 | struct snd_emu10k1_pcm_mixer *mix) |
664 | { |
665 | unsigned int vattn; |
666 | unsigned int tmp; |
667 | |
668 | tmp = stereo ? (master ? 1 : 2) : 0; |
669 | vattn = mix->attn[tmp] << 16; |
670 | snd_emu10k1_playback_commit_volume(emu, evoice, vattn); |
671 | } |
672 | |
673 | static void snd_emu10k1_playback_unmute_voices(struct snd_emu10k1 *emu, |
674 | struct snd_emu10k1_voice *evoice, |
675 | bool stereo, |
676 | struct snd_emu10k1_pcm_mixer *mix) |
677 | { |
678 | snd_emu10k1_playback_unmute_voice(emu, evoice, stereo, master: true, mix); |
679 | if (stereo) |
680 | snd_emu10k1_playback_unmute_voice(emu, evoice: evoice + 1, stereo: true, master: false, mix); |
681 | } |
682 | |
683 | static void snd_emu10k1_playback_mute_voice(struct snd_emu10k1 *emu, |
684 | struct snd_emu10k1_voice *evoice) |
685 | { |
686 | snd_emu10k1_playback_commit_volume(emu, evoice, vattn: 0); |
687 | } |
688 | |
689 | static void snd_emu10k1_playback_mute_voices(struct snd_emu10k1 *emu, |
690 | struct snd_emu10k1_voice *evoice, |
691 | bool stereo) |
692 | { |
693 | snd_emu10k1_playback_mute_voice(emu, evoice); |
694 | if (stereo) |
695 | snd_emu10k1_playback_mute_voice(emu, evoice: evoice + 1); |
696 | } |
697 | |
698 | static void snd_emu10k1_playback_commit_pitch(struct snd_emu10k1 *emu, |
699 | u32 voice, u32 pitch_target) |
700 | { |
701 | u32 ptrx = snd_emu10k1_ptr_read(emu, PTRX, chn: voice); |
702 | u32 cpf = snd_emu10k1_ptr_read(emu, CPF, chn: voice); |
703 | snd_emu10k1_ptr_write_multiple(emu, chn: voice, |
704 | PTRX, (ptrx & ~PTRX_PITCHTARGET_MASK) | pitch_target, |
705 | CPF, (cpf & ~(CPF_CURRENTPITCH_MASK | CPF_FRACADDRESS_MASK)) | pitch_target, |
706 | REGLIST_END); |
707 | } |
708 | |
709 | static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, |
710 | struct snd_emu10k1_voice *evoice) |
711 | { |
712 | unsigned int voice; |
713 | |
714 | voice = evoice->number; |
715 | snd_emu10k1_playback_commit_pitch(emu, voice, pitch_target: evoice->epcm->pitch_target << 16); |
716 | } |
717 | |
718 | static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, |
719 | struct snd_emu10k1_voice *evoice) |
720 | { |
721 | unsigned int voice; |
722 | |
723 | voice = evoice->number; |
724 | snd_emu10k1_playback_commit_pitch(emu, voice, pitch_target: 0); |
725 | } |
726 | |
727 | static void snd_emu10k1_playback_set_running(struct snd_emu10k1 *emu, |
728 | struct snd_emu10k1_pcm *epcm) |
729 | { |
730 | epcm->running = 1; |
731 | snd_emu10k1_voice_intr_enable(emu, voicenum: epcm->extra->number); |
732 | } |
733 | |
734 | static void snd_emu10k1_playback_set_stopped(struct snd_emu10k1 *emu, |
735 | struct snd_emu10k1_pcm *epcm) |
736 | { |
737 | snd_emu10k1_voice_intr_disable(emu, voicenum: epcm->extra->number); |
738 | epcm->running = 0; |
739 | } |
740 | |
741 | static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream, |
742 | int cmd) |
743 | { |
744 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
745 | struct snd_pcm_runtime *runtime = substream->runtime; |
746 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
747 | struct snd_emu10k1_pcm_mixer *mix; |
748 | bool w_16 = snd_pcm_format_width(format: runtime->format) == 16; |
749 | bool stereo = runtime->channels == 2; |
750 | int result = 0; |
751 | |
752 | /* |
753 | dev_dbg(emu->card->dev, |
754 | "trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", |
755 | (int)emu, cmd, substream->ops->pointer(substream)) |
756 | */ |
757 | spin_lock(lock: &emu->reg_lock); |
758 | switch (cmd) { |
759 | case SNDRV_PCM_TRIGGER_START: |
760 | snd_emu10k1_playback_prepare_voices(emu, epcm, w_16, stereo, channels: 1); |
761 | fallthrough; |
762 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
763 | case SNDRV_PCM_TRIGGER_RESUME: |
764 | mix = &emu->pcm_mixer[substream->number]; |
765 | snd_emu10k1_playback_unmute_voices(emu, evoice: epcm->voices[0], stereo, mix); |
766 | snd_emu10k1_playback_set_running(emu, epcm); |
767 | snd_emu10k1_playback_trigger_voice(emu, evoice: epcm->voices[0]); |
768 | snd_emu10k1_playback_trigger_voice(emu, evoice: epcm->extra); |
769 | break; |
770 | case SNDRV_PCM_TRIGGER_STOP: |
771 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
772 | case SNDRV_PCM_TRIGGER_SUSPEND: |
773 | snd_emu10k1_playback_stop_voice(emu, evoice: epcm->voices[0]); |
774 | snd_emu10k1_playback_stop_voice(emu, evoice: epcm->extra); |
775 | snd_emu10k1_playback_set_stopped(emu, epcm); |
776 | snd_emu10k1_playback_mute_voices(emu, evoice: epcm->voices[0], stereo); |
777 | break; |
778 | default: |
779 | result = -EINVAL; |
780 | break; |
781 | } |
782 | spin_unlock(lock: &emu->reg_lock); |
783 | return result; |
784 | } |
785 | |
786 | static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream, |
787 | int cmd) |
788 | { |
789 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
790 | struct snd_pcm_runtime *runtime = substream->runtime; |
791 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
792 | int result = 0; |
793 | |
794 | spin_lock(lock: &emu->reg_lock); |
795 | switch (cmd) { |
796 | case SNDRV_PCM_TRIGGER_START: |
797 | case SNDRV_PCM_TRIGGER_RESUME: |
798 | /* hmm this should cause full and half full interrupt to be raised? */ |
799 | outl(value: epcm->capture_ipr, port: emu->port + IPR); |
800 | snd_emu10k1_intr_enable(emu, intrenb: epcm->capture_inte); |
801 | /* |
802 | dev_dbg(emu->card->dev, "adccr = 0x%x, adcbs = 0x%x\n", |
803 | epcm->adccr, epcm->adcbs); |
804 | */ |
805 | switch (epcm->type) { |
806 | case CAPTURE_AC97ADC: |
807 | snd_emu10k1_ptr_write(emu, ADCCR, chn: 0, data: epcm->capture_cr_val); |
808 | break; |
809 | case CAPTURE_EFX: |
810 | if (emu->audigy) { |
811 | snd_emu10k1_ptr_write_multiple(emu, chn: 0, |
812 | A_FXWC1, epcm->capture_cr_val, |
813 | A_FXWC2, epcm->capture_cr_val2, |
814 | REGLIST_END); |
815 | dev_dbg(emu->card->dev, |
816 | "cr_val=0x%x, cr_val2=0x%x\n" , |
817 | epcm->capture_cr_val, |
818 | epcm->capture_cr_val2); |
819 | } else |
820 | snd_emu10k1_ptr_write(emu, FXWC, chn: 0, data: epcm->capture_cr_val); |
821 | break; |
822 | default: |
823 | break; |
824 | } |
825 | snd_emu10k1_ptr_write(emu, reg: epcm->capture_bs_reg, chn: 0, data: epcm->capture_bs_val); |
826 | epcm->running = 1; |
827 | epcm->first_ptr = 1; |
828 | break; |
829 | case SNDRV_PCM_TRIGGER_STOP: |
830 | case SNDRV_PCM_TRIGGER_SUSPEND: |
831 | epcm->running = 0; |
832 | snd_emu10k1_intr_disable(emu, intrenb: epcm->capture_inte); |
833 | outl(value: epcm->capture_ipr, port: emu->port + IPR); |
834 | snd_emu10k1_ptr_write(emu, reg: epcm->capture_bs_reg, chn: 0, data: 0); |
835 | switch (epcm->type) { |
836 | case CAPTURE_AC97ADC: |
837 | snd_emu10k1_ptr_write(emu, ADCCR, chn: 0, data: 0); |
838 | break; |
839 | case CAPTURE_EFX: |
840 | if (emu->audigy) { |
841 | snd_emu10k1_ptr_write_multiple(emu, chn: 0, |
842 | A_FXWC1, 0, |
843 | A_FXWC2, 0, |
844 | REGLIST_END); |
845 | } else |
846 | snd_emu10k1_ptr_write(emu, FXWC, chn: 0, data: 0); |
847 | break; |
848 | default: |
849 | break; |
850 | } |
851 | break; |
852 | default: |
853 | result = -EINVAL; |
854 | } |
855 | spin_unlock(lock: &emu->reg_lock); |
856 | return result; |
857 | } |
858 | |
859 | static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream) |
860 | { |
861 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
862 | struct snd_pcm_runtime *runtime = substream->runtime; |
863 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
864 | int ptr; |
865 | |
866 | if (!epcm->running) |
867 | return 0; |
868 | |
869 | ptr = snd_emu10k1_ptr_read(emu, CCCA, chn: epcm->voices[0]->number) & 0x00ffffff; |
870 | ptr -= epcm->ccca_start_addr; |
871 | |
872 | // This is the size of the whole cache minus the interpolator read-ahead, |
873 | // which leads us to the actual playback position. |
874 | // |
875 | // The cache is constantly kept mostly filled, so in principle we could |
876 | // return a more advanced position representing how far the hardware has |
877 | // already read the buffer, and set runtime->delay accordingly. However, |
878 | // this would be slightly different for every channel (and remarkably slow |
879 | // to obtain), so only a fixed worst-case value would be practical. |
880 | // |
881 | ptr -= 64 - 3; |
882 | if (ptr < 0) |
883 | ptr += runtime->buffer_size; |
884 | |
885 | /* |
886 | dev_dbg(emu->card->dev, |
887 | "ptr = 0x%lx, buffer_size = 0x%lx, period_size = 0x%lx\n", |
888 | (long)ptr, (long)runtime->buffer_size, |
889 | (long)runtime->period_size); |
890 | */ |
891 | return ptr; |
892 | } |
893 | |
894 | static u64 snd_emu10k1_efx_playback_voice_mask(struct snd_emu10k1_pcm *epcm, |
895 | int channels) |
896 | { |
897 | u64 mask = 0; |
898 | |
899 | for (int i = 0; i < channels; i++) { |
900 | int voice = epcm->voices[i]->number; |
901 | mask |= 1ULL << voice; |
902 | } |
903 | return mask; |
904 | } |
905 | |
906 | static void snd_emu10k1_efx_playback_freeze_voices(struct snd_emu10k1 *emu, |
907 | struct snd_emu10k1_pcm *epcm, |
908 | int channels) |
909 | { |
910 | for (int i = 0; i < channels; i++) { |
911 | int voice = epcm->voices[i]->number; |
912 | snd_emu10k1_ptr_write(emu, reg: CPF_STOP, chn: voice, data: 1); |
913 | snd_emu10k1_playback_commit_pitch(emu, voice, PITCH_48000 << 16); |
914 | } |
915 | } |
916 | |
917 | static void snd_emu10k1_efx_playback_unmute_voices(struct snd_emu10k1 *emu, |
918 | struct snd_emu10k1_pcm *epcm, |
919 | int channels) |
920 | { |
921 | for (int i = 0; i < channels; i++) |
922 | snd_emu10k1_playback_unmute_voice(emu, evoice: epcm->voices[i], stereo: false, master: true, |
923 | mix: &emu->efx_pcm_mixer[i]); |
924 | } |
925 | |
926 | static void snd_emu10k1_efx_playback_stop_voices(struct snd_emu10k1 *emu, |
927 | struct snd_emu10k1_pcm *epcm, |
928 | int channels) |
929 | { |
930 | for (int i = 0; i < channels; i++) |
931 | snd_emu10k1_playback_stop_voice(emu, evoice: epcm->voices[i]); |
932 | snd_emu10k1_playback_set_stopped(emu, epcm); |
933 | |
934 | for (int i = 0; i < channels; i++) |
935 | snd_emu10k1_playback_mute_voice(emu, evoice: epcm->voices[i]); |
936 | } |
937 | |
938 | static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream, |
939 | int cmd) |
940 | { |
941 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
942 | struct snd_pcm_runtime *runtime = substream->runtime; |
943 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
944 | u64 mask; |
945 | int result = 0; |
946 | |
947 | spin_lock(lock: &emu->reg_lock); |
948 | switch (cmd) { |
949 | case SNDRV_PCM_TRIGGER_START: |
950 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
951 | case SNDRV_PCM_TRIGGER_RESUME: |
952 | mask = snd_emu10k1_efx_playback_voice_mask( |
953 | epcm, channels: runtime->channels); |
954 | for (int i = 0; i < 10; i++) { |
955 | // Note that the freeze is not interruptible, so we make no |
956 | // effort to reset the bits outside the error handling here. |
957 | snd_emu10k1_voice_set_loop_stop_multiple(emu, voices: mask); |
958 | snd_emu10k1_efx_playback_freeze_voices( |
959 | emu, epcm, channels: runtime->channels); |
960 | snd_emu10k1_playback_prepare_voices( |
961 | emu, epcm, w_16: true, stereo: false, channels: runtime->channels); |
962 | |
963 | // It might seem to make more sense to unmute the voices only after |
964 | // they have been started, to potentially avoid torturing the speakers |
965 | // if something goes wrong. However, we cannot unmute atomically, |
966 | // which means that we'd get some mild artifacts in the regular case. |
967 | snd_emu10k1_efx_playback_unmute_voices(emu, epcm, channels: runtime->channels); |
968 | |
969 | snd_emu10k1_playback_set_running(emu, epcm); |
970 | result = snd_emu10k1_voice_clear_loop_stop_multiple_atomic(emu, voices: mask); |
971 | if (result == 0) { |
972 | // The extra voice is allowed to lag a bit |
973 | snd_emu10k1_playback_trigger_voice(emu, evoice: epcm->extra); |
974 | goto leave; |
975 | } |
976 | |
977 | snd_emu10k1_efx_playback_stop_voices( |
978 | emu, epcm, channels: runtime->channels); |
979 | |
980 | if (result != -EAGAIN) |
981 | break; |
982 | // The sync start can legitimately fail due to NMIs, etc. |
983 | } |
984 | snd_emu10k1_voice_clear_loop_stop_multiple(emu, voices: mask); |
985 | break; |
986 | case SNDRV_PCM_TRIGGER_SUSPEND: |
987 | case SNDRV_PCM_TRIGGER_STOP: |
988 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
989 | snd_emu10k1_playback_stop_voice(emu, evoice: epcm->extra); |
990 | snd_emu10k1_efx_playback_stop_voices( |
991 | emu, epcm, channels: runtime->channels); |
992 | |
993 | epcm->resume_pos = snd_emu10k1_playback_pointer(substream); |
994 | break; |
995 | default: |
996 | result = -EINVAL; |
997 | break; |
998 | } |
999 | leave: |
1000 | spin_unlock(lock: &emu->reg_lock); |
1001 | return result; |
1002 | } |
1003 | |
1004 | |
1005 | static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream) |
1006 | { |
1007 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1008 | struct snd_pcm_runtime *runtime = substream->runtime; |
1009 | struct snd_emu10k1_pcm *epcm = runtime->private_data; |
1010 | unsigned int ptr; |
1011 | |
1012 | if (!epcm->running) |
1013 | return 0; |
1014 | if (epcm->first_ptr) { |
1015 | udelay(50); /* hack, it takes awhile until capture is started */ |
1016 | epcm->first_ptr = 0; |
1017 | } |
1018 | ptr = snd_emu10k1_ptr_read(emu, reg: epcm->capture_idx_reg, chn: 0) & 0x0000ffff; |
1019 | return bytes_to_frames(runtime, size: ptr); |
1020 | } |
1021 | |
1022 | /* |
1023 | * Playback support device description |
1024 | */ |
1025 | |
1026 | static const struct snd_pcm_hardware snd_emu10k1_playback = |
1027 | { |
1028 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
1029 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
1030 | SNDRV_PCM_INFO_RESUME | |
1031 | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), |
1032 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
1033 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000, |
1034 | .rate_min = 4000, |
1035 | .rate_max = 96000, |
1036 | .channels_min = 1, |
1037 | .channels_max = 2, |
1038 | .buffer_bytes_max = (128*1024), |
1039 | .period_bytes_max = (128*1024), |
1040 | .periods_min = 2, |
1041 | .periods_max = 1024, |
1042 | .fifo_size = 0, |
1043 | }; |
1044 | |
1045 | /* |
1046 | * Capture support device description |
1047 | */ |
1048 | |
1049 | static const struct snd_pcm_hardware snd_emu10k1_capture = |
1050 | { |
1051 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
1052 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
1053 | SNDRV_PCM_INFO_RESUME | |
1054 | SNDRV_PCM_INFO_MMAP_VALID), |
1055 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
1056 | .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT, |
1057 | .rate_min = 8000, |
1058 | .rate_max = 48000, |
1059 | .channels_min = 1, |
1060 | .channels_max = 2, |
1061 | .buffer_bytes_max = (64*1024), |
1062 | .period_bytes_min = 384, |
1063 | .period_bytes_max = (64*1024), |
1064 | .periods_min = 2, |
1065 | .periods_max = 2, |
1066 | .fifo_size = 0, |
1067 | }; |
1068 | |
1069 | static const struct snd_pcm_hardware snd_emu10k1_capture_efx = |
1070 | { |
1071 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
1072 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
1073 | SNDRV_PCM_INFO_RESUME | |
1074 | SNDRV_PCM_INFO_MMAP_VALID), |
1075 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
1076 | .rates = SNDRV_PCM_RATE_48000, |
1077 | .rate_min = 48000, |
1078 | .rate_max = 48000, |
1079 | .channels_min = 1, |
1080 | .channels_max = 16, |
1081 | .buffer_bytes_max = (64*1024), |
1082 | .period_bytes_min = 384, |
1083 | .period_bytes_max = (64*1024), |
1084 | .periods_min = 2, |
1085 | .periods_max = 2, |
1086 | .fifo_size = 0, |
1087 | }; |
1088 | |
1089 | /* |
1090 | * |
1091 | */ |
1092 | |
1093 | static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate) |
1094 | { |
1095 | struct snd_ctl_elem_id id; |
1096 | |
1097 | if (! kctl) |
1098 | return; |
1099 | if (activate) |
1100 | kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; |
1101 | else |
1102 | kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; |
1103 | snd_ctl_notify(card: emu->card, SNDRV_CTL_EVENT_MASK_VALUE | |
1104 | SNDRV_CTL_EVENT_MASK_INFO, |
1105 | id: snd_ctl_build_ioff(dst_id: &id, src_kctl: kctl, offset: idx)); |
1106 | } |
1107 | |
1108 | static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate) |
1109 | { |
1110 | snd_emu10k1_pcm_mixer_notify1(emu, kctl: emu->ctl_send_routing, idx, activate); |
1111 | snd_emu10k1_pcm_mixer_notify1(emu, kctl: emu->ctl_send_volume, idx, activate); |
1112 | snd_emu10k1_pcm_mixer_notify1(emu, kctl: emu->ctl_attn, idx, activate); |
1113 | } |
1114 | |
1115 | static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate) |
1116 | { |
1117 | snd_emu10k1_pcm_mixer_notify1(emu, kctl: emu->ctl_efx_send_routing, idx, activate); |
1118 | snd_emu10k1_pcm_mixer_notify1(emu, kctl: emu->ctl_efx_send_volume, idx, activate); |
1119 | snd_emu10k1_pcm_mixer_notify1(emu, kctl: emu->ctl_efx_attn, idx, activate); |
1120 | } |
1121 | |
1122 | static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime) |
1123 | { |
1124 | kfree(objp: runtime->private_data); |
1125 | } |
1126 | |
1127 | static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream) |
1128 | { |
1129 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1130 | struct snd_emu10k1_pcm_mixer *mix; |
1131 | int i; |
1132 | |
1133 | for (i = 0; i < NUM_EFX_PLAYBACK; i++) { |
1134 | mix = &emu->efx_pcm_mixer[i]; |
1135 | mix->epcm = NULL; |
1136 | snd_emu10k1_pcm_efx_mixer_notify(emu, idx: i, activate: 0); |
1137 | } |
1138 | return 0; |
1139 | } |
1140 | |
1141 | static int snd_emu10k1_playback_set_constraints(struct snd_pcm_runtime *runtime) |
1142 | { |
1143 | int err; |
1144 | |
1145 | // The buffer size must be a multiple of the period size, to avoid a |
1146 | // mismatch between the extra voice and the regular voices. |
1147 | err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
1148 | if (err < 0) |
1149 | return err; |
1150 | // The hardware is typically the cache's size of 64 frames ahead. |
1151 | // Leave enough time for actually filling up the buffer. |
1152 | err = snd_pcm_hw_constraint_minmax( |
1153 | runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, min: 128, UINT_MAX); |
1154 | return err; |
1155 | } |
1156 | |
1157 | static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream) |
1158 | { |
1159 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1160 | struct snd_emu10k1_pcm *epcm; |
1161 | struct snd_emu10k1_pcm_mixer *mix; |
1162 | struct snd_pcm_runtime *runtime = substream->runtime; |
1163 | int i, j, err; |
1164 | |
1165 | epcm = kzalloc(size: sizeof(*epcm), GFP_KERNEL); |
1166 | if (epcm == NULL) |
1167 | return -ENOMEM; |
1168 | epcm->emu = emu; |
1169 | epcm->type = PLAYBACK_EFX; |
1170 | epcm->substream = substream; |
1171 | |
1172 | runtime->private_data = epcm; |
1173 | runtime->private_free = snd_emu10k1_pcm_free_substream; |
1174 | runtime->hw = snd_emu10k1_efx_playback; |
1175 | if (emu->card_capabilities->emu_model) |
1176 | snd_emu1010_constrain_efx_rate(emu, runtime); |
1177 | err = snd_emu10k1_playback_set_constraints(runtime); |
1178 | if (err < 0) { |
1179 | kfree(objp: epcm); |
1180 | return err; |
1181 | } |
1182 | |
1183 | for (i = 0; i < NUM_EFX_PLAYBACK; i++) { |
1184 | mix = &emu->efx_pcm_mixer[i]; |
1185 | for (j = 0; j < 8; j++) |
1186 | mix->send_routing[0][j] = i + j; |
1187 | memset(&mix->send_volume, 0, sizeof(mix->send_volume)); |
1188 | mix->send_volume[0][0] = 255; |
1189 | mix->attn[0] = 0x8000; |
1190 | mix->epcm = epcm; |
1191 | snd_emu10k1_pcm_efx_mixer_notify(emu, idx: i, activate: 1); |
1192 | } |
1193 | return 0; |
1194 | } |
1195 | |
1196 | static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream) |
1197 | { |
1198 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1199 | struct snd_emu10k1_pcm *epcm; |
1200 | struct snd_emu10k1_pcm_mixer *mix; |
1201 | struct snd_pcm_runtime *runtime = substream->runtime; |
1202 | int i, err, sample_rate; |
1203 | |
1204 | epcm = kzalloc(size: sizeof(*epcm), GFP_KERNEL); |
1205 | if (epcm == NULL) |
1206 | return -ENOMEM; |
1207 | epcm->emu = emu; |
1208 | epcm->type = PLAYBACK_EMUVOICE; |
1209 | epcm->substream = substream; |
1210 | runtime->private_data = epcm; |
1211 | runtime->private_free = snd_emu10k1_pcm_free_substream; |
1212 | runtime->hw = snd_emu10k1_playback; |
1213 | err = snd_emu10k1_playback_set_constraints(runtime); |
1214 | if (err < 0) { |
1215 | kfree(objp: epcm); |
1216 | return err; |
1217 | } |
1218 | if (emu->card_capabilities->emu_model) |
1219 | sample_rate = emu->emu1010.word_clock; |
1220 | else |
1221 | sample_rate = 48000; |
1222 | err = snd_pcm_hw_rule_noresample(runtime, base_rate: sample_rate); |
1223 | if (err < 0) { |
1224 | kfree(objp: epcm); |
1225 | return err; |
1226 | } |
1227 | mix = &emu->pcm_mixer[substream->number]; |
1228 | for (i = 0; i < 8; i++) |
1229 | mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i; |
1230 | memset(&mix->send_volume, 0, sizeof(mix->send_volume)); |
1231 | mix->send_volume[0][0] = mix->send_volume[0][1] = |
1232 | mix->send_volume[1][0] = mix->send_volume[2][1] = 255; |
1233 | mix->attn[0] = mix->attn[1] = mix->attn[2] = 0x8000; |
1234 | mix->epcm = epcm; |
1235 | snd_emu10k1_pcm_mixer_notify(emu, idx: substream->number, activate: 1); |
1236 | return 0; |
1237 | } |
1238 | |
1239 | static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream) |
1240 | { |
1241 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1242 | struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number]; |
1243 | |
1244 | mix->epcm = NULL; |
1245 | snd_emu10k1_pcm_mixer_notify(emu, idx: substream->number, activate: 0); |
1246 | return 0; |
1247 | } |
1248 | |
1249 | static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream) |
1250 | { |
1251 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1252 | struct snd_pcm_runtime *runtime = substream->runtime; |
1253 | struct snd_emu10k1_pcm *epcm; |
1254 | |
1255 | epcm = kzalloc(size: sizeof(*epcm), GFP_KERNEL); |
1256 | if (epcm == NULL) |
1257 | return -ENOMEM; |
1258 | epcm->emu = emu; |
1259 | epcm->type = CAPTURE_AC97ADC; |
1260 | epcm->substream = substream; |
1261 | epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL; |
1262 | epcm->capture_inte = INTE_ADCBUFENABLE; |
1263 | epcm->capture_ba_reg = ADCBA; |
1264 | epcm->capture_bs_reg = ADCBS; |
1265 | epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX; |
1266 | runtime->private_data = epcm; |
1267 | runtime->private_free = snd_emu10k1_pcm_free_substream; |
1268 | runtime->hw = snd_emu10k1_capture; |
1269 | snd_emu10k1_constrain_capture_rates(emu, runtime); |
1270 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, |
1271 | l: &hw_constraints_capture_buffer_sizes); |
1272 | emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt; |
1273 | emu->pcm_capture_substream = substream; |
1274 | return 0; |
1275 | } |
1276 | |
1277 | static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream) |
1278 | { |
1279 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1280 | |
1281 | emu->capture_interrupt = NULL; |
1282 | emu->pcm_capture_substream = NULL; |
1283 | return 0; |
1284 | } |
1285 | |
1286 | static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream) |
1287 | { |
1288 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1289 | struct snd_emu10k1_pcm *epcm; |
1290 | struct snd_pcm_runtime *runtime = substream->runtime; |
1291 | |
1292 | epcm = kzalloc(size: sizeof(*epcm), GFP_KERNEL); |
1293 | if (epcm == NULL) |
1294 | return -ENOMEM; |
1295 | epcm->emu = emu; |
1296 | epcm->type = CAPTURE_AC97MIC; |
1297 | epcm->substream = substream; |
1298 | epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL; |
1299 | epcm->capture_inte = INTE_MICBUFENABLE; |
1300 | epcm->capture_ba_reg = MICBA; |
1301 | epcm->capture_bs_reg = MICBS; |
1302 | epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX; |
1303 | substream->runtime->private_data = epcm; |
1304 | substream->runtime->private_free = snd_emu10k1_pcm_free_substream; |
1305 | runtime->hw = snd_emu10k1_capture; |
1306 | runtime->hw.rates = SNDRV_PCM_RATE_8000; |
1307 | runtime->hw.rate_min = runtime->hw.rate_max = 8000; |
1308 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, |
1309 | l: &hw_constraints_capture_buffer_sizes); |
1310 | emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt; |
1311 | emu->pcm_capture_mic_substream = substream; |
1312 | return 0; |
1313 | } |
1314 | |
1315 | static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream) |
1316 | { |
1317 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1318 | |
1319 | emu->capture_mic_interrupt = NULL; |
1320 | emu->pcm_capture_mic_substream = NULL; |
1321 | return 0; |
1322 | } |
1323 | |
1324 | static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream) |
1325 | { |
1326 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1327 | struct snd_emu10k1_pcm *epcm; |
1328 | struct snd_pcm_runtime *runtime = substream->runtime; |
1329 | int nefx = emu->audigy ? 64 : 32; |
1330 | int idx, err; |
1331 | |
1332 | epcm = kzalloc(size: sizeof(*epcm), GFP_KERNEL); |
1333 | if (epcm == NULL) |
1334 | return -ENOMEM; |
1335 | epcm->emu = emu; |
1336 | epcm->type = CAPTURE_EFX; |
1337 | epcm->substream = substream; |
1338 | epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL; |
1339 | epcm->capture_inte = INTE_EFXBUFENABLE; |
1340 | epcm->capture_ba_reg = FXBA; |
1341 | epcm->capture_bs_reg = FXBS; |
1342 | epcm->capture_idx_reg = FXIDX; |
1343 | substream->runtime->private_data = epcm; |
1344 | substream->runtime->private_free = snd_emu10k1_pcm_free_substream; |
1345 | runtime->hw = snd_emu10k1_capture_efx; |
1346 | if (emu->card_capabilities->emu_model) { |
1347 | snd_emu1010_constrain_efx_rate(emu, runtime); |
1348 | /* |
1349 | * There are 32 mono channels of 16bits each. |
1350 | * 24bit Audio uses 2x channels over 16bit, |
1351 | * 96kHz uses 2x channels over 48kHz, |
1352 | * 192kHz uses 4x channels over 48kHz. |
1353 | * So, for 48kHz 24bit, one has 16 channels, |
1354 | * for 96kHz 24bit, one has 8 channels, |
1355 | * for 192kHz 24bit, one has 4 channels. |
1356 | * 1010rev2 and 1616(m) cards have double that, |
1357 | * but we don't exceed 16 channels anyway. |
1358 | */ |
1359 | #if 0 |
1360 | /* For 96kHz */ |
1361 | runtime->hw.channels_min = runtime->hw.channels_max = 4; |
1362 | #endif |
1363 | #if 0 |
1364 | /* For 192kHz */ |
1365 | runtime->hw.channels_min = runtime->hw.channels_max = 2; |
1366 | #endif |
1367 | runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE; |
1368 | } else { |
1369 | spin_lock_irq(lock: &emu->reg_lock); |
1370 | runtime->hw.channels_min = runtime->hw.channels_max = 0; |
1371 | for (idx = 0; idx < nefx; idx++) { |
1372 | if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) { |
1373 | runtime->hw.channels_min++; |
1374 | runtime->hw.channels_max++; |
1375 | } |
1376 | } |
1377 | epcm->capture_cr_val = emu->efx_voices_mask[0]; |
1378 | epcm->capture_cr_val2 = emu->efx_voices_mask[1]; |
1379 | spin_unlock_irq(lock: &emu->reg_lock); |
1380 | } |
1381 | err = snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
1382 | l: &hw_constraints_efx_capture_channels); |
1383 | if (err < 0) { |
1384 | kfree(objp: epcm); |
1385 | return err; |
1386 | } |
1387 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, |
1388 | l: &hw_constraints_capture_buffer_sizes); |
1389 | emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt; |
1390 | emu->pcm_capture_efx_substream = substream; |
1391 | return 0; |
1392 | } |
1393 | |
1394 | static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream) |
1395 | { |
1396 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1397 | |
1398 | emu->capture_efx_interrupt = NULL; |
1399 | emu->pcm_capture_efx_substream = NULL; |
1400 | return 0; |
1401 | } |
1402 | |
1403 | static const struct snd_pcm_ops snd_emu10k1_playback_ops = { |
1404 | .open = snd_emu10k1_playback_open, |
1405 | .close = snd_emu10k1_playback_close, |
1406 | .hw_params = snd_emu10k1_playback_hw_params, |
1407 | .hw_free = snd_emu10k1_playback_hw_free, |
1408 | .prepare = snd_emu10k1_playback_prepare, |
1409 | .trigger = snd_emu10k1_playback_trigger, |
1410 | .pointer = snd_emu10k1_playback_pointer, |
1411 | }; |
1412 | |
1413 | static const struct snd_pcm_ops snd_emu10k1_capture_ops = { |
1414 | .open = snd_emu10k1_capture_open, |
1415 | .close = snd_emu10k1_capture_close, |
1416 | .prepare = snd_emu10k1_capture_prepare, |
1417 | .trigger = snd_emu10k1_capture_trigger, |
1418 | .pointer = snd_emu10k1_capture_pointer, |
1419 | }; |
1420 | |
1421 | /* EFX playback */ |
1422 | static const struct snd_pcm_ops snd_emu10k1_efx_playback_ops = { |
1423 | .open = snd_emu10k1_efx_playback_open, |
1424 | .close = snd_emu10k1_efx_playback_close, |
1425 | .hw_params = snd_emu10k1_playback_hw_params, |
1426 | .hw_free = snd_emu10k1_playback_hw_free, |
1427 | .prepare = snd_emu10k1_efx_playback_prepare, |
1428 | .trigger = snd_emu10k1_efx_playback_trigger, |
1429 | .pointer = snd_emu10k1_playback_pointer, |
1430 | }; |
1431 | |
1432 | int snd_emu10k1_pcm(struct snd_emu10k1 *emu, int device) |
1433 | { |
1434 | struct snd_pcm *pcm; |
1435 | struct snd_pcm_substream *substream; |
1436 | int err; |
1437 | |
1438 | err = snd_pcm_new(card: emu->card, id: "emu10k1" , device, playback_count: 32, capture_count: 1, rpcm: &pcm); |
1439 | if (err < 0) |
1440 | return err; |
1441 | |
1442 | pcm->private_data = emu; |
1443 | |
1444 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_PLAYBACK, ops: &snd_emu10k1_playback_ops); |
1445 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, ops: &snd_emu10k1_capture_ops); |
1446 | |
1447 | pcm->info_flags = 0; |
1448 | pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; |
1449 | strcpy(p: pcm->name, q: "ADC Capture/Standard PCM Playback" ); |
1450 | emu->pcm = pcm; |
1451 | |
1452 | /* playback substream can't use managed buffers due to alignment */ |
1453 | for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) |
1454 | snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, |
1455 | data: &emu->pci->dev, |
1456 | size: 64*1024, max: 64*1024); |
1457 | |
1458 | for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next) |
1459 | snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV, |
1460 | data: &emu->pci->dev, size: 64*1024, max: 64*1024); |
1461 | |
1462 | return 0; |
1463 | } |
1464 | |
1465 | int snd_emu10k1_pcm_multi(struct snd_emu10k1 *emu, int device) |
1466 | { |
1467 | struct snd_pcm *pcm; |
1468 | struct snd_pcm_substream *substream; |
1469 | int err; |
1470 | |
1471 | err = snd_pcm_new(card: emu->card, id: "emu10k1" , device, playback_count: 1, capture_count: 0, rpcm: &pcm); |
1472 | if (err < 0) |
1473 | return err; |
1474 | |
1475 | pcm->private_data = emu; |
1476 | |
1477 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_PLAYBACK, ops: &snd_emu10k1_efx_playback_ops); |
1478 | |
1479 | pcm->info_flags = 0; |
1480 | pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; |
1481 | strcpy(p: pcm->name, q: "Multichannel Playback" ); |
1482 | emu->pcm_multi = pcm; |
1483 | |
1484 | for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) |
1485 | snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, |
1486 | data: &emu->pci->dev, |
1487 | size: 64*1024, max: 64*1024); |
1488 | |
1489 | return 0; |
1490 | } |
1491 | |
1492 | |
1493 | static const struct snd_pcm_ops snd_emu10k1_capture_mic_ops = { |
1494 | .open = snd_emu10k1_capture_mic_open, |
1495 | .close = snd_emu10k1_capture_mic_close, |
1496 | .prepare = snd_emu10k1_capture_prepare, |
1497 | .trigger = snd_emu10k1_capture_trigger, |
1498 | .pointer = snd_emu10k1_capture_pointer, |
1499 | }; |
1500 | |
1501 | int snd_emu10k1_pcm_mic(struct snd_emu10k1 *emu, int device) |
1502 | { |
1503 | struct snd_pcm *pcm; |
1504 | int err; |
1505 | |
1506 | err = snd_pcm_new(card: emu->card, id: "emu10k1 mic" , device, playback_count: 0, capture_count: 1, rpcm: &pcm); |
1507 | if (err < 0) |
1508 | return err; |
1509 | |
1510 | pcm->private_data = emu; |
1511 | |
1512 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, ops: &snd_emu10k1_capture_mic_ops); |
1513 | |
1514 | pcm->info_flags = 0; |
1515 | strcpy(p: pcm->name, q: "Mic Capture" ); |
1516 | emu->pcm_mic = pcm; |
1517 | |
1518 | snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, data: &emu->pci->dev, |
1519 | size: 64*1024, max: 64*1024); |
1520 | |
1521 | return 0; |
1522 | } |
1523 | |
1524 | static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1525 | { |
1526 | struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); |
1527 | int nefx = emu->audigy ? 64 : 32; |
1528 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1529 | uinfo->count = nefx; |
1530 | uinfo->value.integer.min = 0; |
1531 | uinfo->value.integer.max = 1; |
1532 | return 0; |
1533 | } |
1534 | |
1535 | static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1536 | { |
1537 | struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); |
1538 | int nefx = emu->audigy ? 64 : 32; |
1539 | int idx; |
1540 | |
1541 | for (idx = 0; idx < nefx; idx++) |
1542 | ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0; |
1543 | return 0; |
1544 | } |
1545 | |
1546 | static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1547 | { |
1548 | struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); |
1549 | unsigned int nval[2], bits; |
1550 | int nefx = emu->audigy ? 64 : 32; |
1551 | int change, idx; |
1552 | |
1553 | nval[0] = nval[1] = 0; |
1554 | for (idx = 0, bits = 0; idx < nefx; idx++) |
1555 | if (ucontrol->value.integer.value[idx]) { |
1556 | nval[idx / 32] |= 1 << (idx % 32); |
1557 | bits++; |
1558 | } |
1559 | |
1560 | if (bits == 9 || bits == 11 || bits == 13 || bits == 15 || bits > 16) |
1561 | return -EINVAL; |
1562 | |
1563 | spin_lock_irq(lock: &emu->reg_lock); |
1564 | change = (nval[0] != emu->efx_voices_mask[0]) || |
1565 | (nval[1] != emu->efx_voices_mask[1]); |
1566 | emu->efx_voices_mask[0] = nval[0]; |
1567 | emu->efx_voices_mask[1] = nval[1]; |
1568 | spin_unlock_irq(lock: &emu->reg_lock); |
1569 | return change; |
1570 | } |
1571 | |
1572 | static const struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = { |
1573 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
1574 | .name = "Captured FX8010 Outputs" , |
1575 | .info = snd_emu10k1_pcm_efx_voices_mask_info, |
1576 | .get = snd_emu10k1_pcm_efx_voices_mask_get, |
1577 | .put = snd_emu10k1_pcm_efx_voices_mask_put |
1578 | }; |
1579 | |
1580 | static const struct snd_pcm_ops snd_emu10k1_capture_efx_ops = { |
1581 | .open = snd_emu10k1_capture_efx_open, |
1582 | .close = snd_emu10k1_capture_efx_close, |
1583 | .prepare = snd_emu10k1_capture_prepare, |
1584 | .trigger = snd_emu10k1_capture_trigger, |
1585 | .pointer = snd_emu10k1_capture_pointer, |
1586 | }; |
1587 | |
1588 | |
1589 | /* EFX playback */ |
1590 | |
1591 | #define INITIAL_TRAM_SHIFT 14 |
1592 | #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1) |
1593 | |
1594 | static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data) |
1595 | { |
1596 | struct snd_pcm_substream *substream = private_data; |
1597 | snd_pcm_period_elapsed(substream); |
1598 | } |
1599 | |
1600 | static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left, |
1601 | unsigned short *dst_right, |
1602 | unsigned short *src, |
1603 | unsigned int count, |
1604 | unsigned int tram_shift) |
1605 | { |
1606 | /* |
1607 | dev_dbg(emu->card->dev, |
1608 | "tram_poke1: dst_left = 0x%p, dst_right = 0x%p, " |
1609 | "src = 0x%p, count = 0x%x\n", |
1610 | dst_left, dst_right, src, count); |
1611 | */ |
1612 | if ((tram_shift & 1) == 0) { |
1613 | while (count--) { |
1614 | *dst_left-- = *src++; |
1615 | *dst_right-- = *src++; |
1616 | } |
1617 | } else { |
1618 | while (count--) { |
1619 | *dst_right-- = *src++; |
1620 | *dst_left-- = *src++; |
1621 | } |
1622 | } |
1623 | } |
1624 | |
1625 | static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream, |
1626 | struct snd_pcm_indirect *rec, size_t bytes) |
1627 | { |
1628 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1629 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1630 | unsigned int tram_size = pcm->buffer_size; |
1631 | unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data); |
1632 | unsigned int frames = bytes >> 2, count; |
1633 | unsigned int tram_pos = pcm->tram_pos; |
1634 | unsigned int tram_shift = pcm->tram_shift; |
1635 | |
1636 | while (frames > tram_pos) { |
1637 | count = tram_pos + 1; |
1638 | snd_emu10k1_fx8010_playback_tram_poke1(dst_left: (unsigned short *)emu->fx8010.etram_pages.area + tram_pos, |
1639 | dst_right: (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2, |
1640 | src, count, tram_shift); |
1641 | src += count * 2; |
1642 | frames -= count; |
1643 | tram_pos = (tram_size / 2) - 1; |
1644 | tram_shift++; |
1645 | } |
1646 | snd_emu10k1_fx8010_playback_tram_poke1(dst_left: (unsigned short *)emu->fx8010.etram_pages.area + tram_pos, |
1647 | dst_right: (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2, |
1648 | src, count: frames, tram_shift); |
1649 | tram_pos -= frames; |
1650 | pcm->tram_pos = tram_pos; |
1651 | pcm->tram_shift = tram_shift; |
1652 | } |
1653 | |
1654 | static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream) |
1655 | { |
1656 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1657 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1658 | |
1659 | return snd_pcm_indirect_playback_transfer(substream, rec: &pcm->pcm_rec, |
1660 | copy: fx8010_pb_trans_copy); |
1661 | } |
1662 | |
1663 | static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream) |
1664 | { |
1665 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1666 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1667 | unsigned int i; |
1668 | |
1669 | for (i = 0; i < pcm->channels; i++) |
1670 | snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], chn: 0, data: 0); |
1671 | return 0; |
1672 | } |
1673 | |
1674 | static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream) |
1675 | { |
1676 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1677 | struct snd_pcm_runtime *runtime = substream->runtime; |
1678 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1679 | unsigned int i; |
1680 | |
1681 | /* |
1682 | dev_dbg(emu->card->dev, "prepare: etram_pages = 0x%p, dma_area = 0x%x, " |
1683 | "buffer_size = 0x%x (0x%x)\n", |
1684 | emu->fx8010.etram_pages, runtime->dma_area, |
1685 | runtime->buffer_size, runtime->buffer_size << 2); |
1686 | */ |
1687 | memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec)); |
1688 | pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */ |
1689 | pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream); |
1690 | pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size); |
1691 | pcm->tram_shift = 0; |
1692 | snd_emu10k1_ptr_write_multiple(emu, chn: 0, |
1693 | emu->gpr_base + pcm->gpr_running, 0, /* reset */ |
1694 | emu->gpr_base + pcm->gpr_trigger, 0, /* reset */ |
1695 | emu->gpr_base + pcm->gpr_size, runtime->buffer_size, |
1696 | emu->gpr_base + pcm->gpr_ptr, 0, /* reset ptr number */ |
1697 | emu->gpr_base + pcm->gpr_count, runtime->period_size, |
1698 | emu->gpr_base + pcm->gpr_tmpcount, runtime->period_size, |
1699 | REGLIST_END); |
1700 | for (i = 0; i < pcm->channels; i++) |
1701 | snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], chn: 0, data: (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels)); |
1702 | return 0; |
1703 | } |
1704 | |
1705 | static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd) |
1706 | { |
1707 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1708 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1709 | int result = 0; |
1710 | |
1711 | spin_lock(lock: &emu->reg_lock); |
1712 | switch (cmd) { |
1713 | case SNDRV_PCM_TRIGGER_START: |
1714 | /* follow thru */ |
1715 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
1716 | case SNDRV_PCM_TRIGGER_RESUME: |
1717 | #ifdef EMU10K1_SET_AC3_IEC958 |
1718 | { |
1719 | int i; |
1720 | for (i = 0; i < 3; i++) { |
1721 | unsigned int bits; |
1722 | bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | |
1723 | SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS | |
1724 | 0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA; |
1725 | snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits); |
1726 | } |
1727 | } |
1728 | #endif |
1729 | result = snd_emu10k1_fx8010_register_irq_handler(emu, handler: snd_emu10k1_fx8010_playback_irq, gpr_running: pcm->gpr_running, private_data: substream, irq: &pcm->irq); |
1730 | if (result < 0) |
1731 | goto __err; |
1732 | snd_emu10k1_fx8010_playback_transfer(substream); /* roll the ball */ |
1733 | snd_emu10k1_ptr_write(emu, reg: emu->gpr_base + pcm->gpr_trigger, chn: 0, data: 1); |
1734 | break; |
1735 | case SNDRV_PCM_TRIGGER_STOP: |
1736 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
1737 | case SNDRV_PCM_TRIGGER_SUSPEND: |
1738 | snd_emu10k1_fx8010_unregister_irq_handler(emu, irq: &pcm->irq); |
1739 | snd_emu10k1_ptr_write(emu, reg: emu->gpr_base + pcm->gpr_trigger, chn: 0, data: 0); |
1740 | pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size); |
1741 | pcm->tram_shift = 0; |
1742 | break; |
1743 | default: |
1744 | result = -EINVAL; |
1745 | break; |
1746 | } |
1747 | __err: |
1748 | spin_unlock(lock: &emu->reg_lock); |
1749 | return result; |
1750 | } |
1751 | |
1752 | static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream) |
1753 | { |
1754 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1755 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1756 | size_t ptr; /* byte pointer */ |
1757 | |
1758 | if (!snd_emu10k1_ptr_read(emu, reg: emu->gpr_base + pcm->gpr_trigger, chn: 0)) |
1759 | return 0; |
1760 | ptr = snd_emu10k1_ptr_read(emu, reg: emu->gpr_base + pcm->gpr_ptr, chn: 0) << 2; |
1761 | return snd_pcm_indirect_playback_pointer(substream, rec: &pcm->pcm_rec, ptr); |
1762 | } |
1763 | |
1764 | static const struct snd_pcm_hardware snd_emu10k1_fx8010_playback = |
1765 | { |
1766 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
1767 | SNDRV_PCM_INFO_RESUME | |
1768 | /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE | |
1769 | SNDRV_PCM_INFO_SYNC_APPLPTR), |
1770 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
1771 | .rates = SNDRV_PCM_RATE_48000, |
1772 | .rate_min = 48000, |
1773 | .rate_max = 48000, |
1774 | .channels_min = 1, |
1775 | .channels_max = 1, |
1776 | .buffer_bytes_max = (128*1024), |
1777 | .period_bytes_min = 1024, |
1778 | .period_bytes_max = (128*1024), |
1779 | .periods_min = 2, |
1780 | .periods_max = 1024, |
1781 | .fifo_size = 0, |
1782 | }; |
1783 | |
1784 | static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream) |
1785 | { |
1786 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1787 | struct snd_pcm_runtime *runtime = substream->runtime; |
1788 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1789 | |
1790 | runtime->hw = snd_emu10k1_fx8010_playback; |
1791 | runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels; |
1792 | runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2; |
1793 | spin_lock_irq(lock: &emu->reg_lock); |
1794 | if (pcm->valid == 0) { |
1795 | spin_unlock_irq(lock: &emu->reg_lock); |
1796 | return -ENODEV; |
1797 | } |
1798 | pcm->opened = 1; |
1799 | spin_unlock_irq(lock: &emu->reg_lock); |
1800 | return 0; |
1801 | } |
1802 | |
1803 | static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream) |
1804 | { |
1805 | struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); |
1806 | struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; |
1807 | |
1808 | spin_lock_irq(lock: &emu->reg_lock); |
1809 | pcm->opened = 0; |
1810 | spin_unlock_irq(lock: &emu->reg_lock); |
1811 | return 0; |
1812 | } |
1813 | |
1814 | static const struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = { |
1815 | .open = snd_emu10k1_fx8010_playback_open, |
1816 | .close = snd_emu10k1_fx8010_playback_close, |
1817 | .hw_free = snd_emu10k1_fx8010_playback_hw_free, |
1818 | .prepare = snd_emu10k1_fx8010_playback_prepare, |
1819 | .trigger = snd_emu10k1_fx8010_playback_trigger, |
1820 | .pointer = snd_emu10k1_fx8010_playback_pointer, |
1821 | .ack = snd_emu10k1_fx8010_playback_transfer, |
1822 | }; |
1823 | |
1824 | int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device) |
1825 | { |
1826 | struct snd_pcm *pcm; |
1827 | struct snd_kcontrol *kctl; |
1828 | int err; |
1829 | |
1830 | err = snd_pcm_new(card: emu->card, id: "emu10k1 efx" , device, playback_count: emu->audigy ? 0 : 8, capture_count: 1, rpcm: &pcm); |
1831 | if (err < 0) |
1832 | return err; |
1833 | |
1834 | pcm->private_data = emu; |
1835 | |
1836 | if (!emu->audigy) |
1837 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_PLAYBACK, ops: &snd_emu10k1_fx8010_playback_ops); |
1838 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, ops: &snd_emu10k1_capture_efx_ops); |
1839 | |
1840 | pcm->info_flags = 0; |
1841 | if (emu->audigy) |
1842 | strcpy(p: pcm->name, q: "Multichannel Capture" ); |
1843 | else |
1844 | strcpy(p: pcm->name, q: "Multichannel Capture/PT Playback" ); |
1845 | emu->pcm_efx = pcm; |
1846 | |
1847 | if (!emu->card_capabilities->emu_model) { |
1848 | // On Sound Blasters, the DSP code copies the EXTINs to FXBUS2. |
1849 | // The mask determines which of these and the EXTOUTs the multi- |
1850 | // channel capture actually records (the channel order is fixed). |
1851 | if (emu->audigy) { |
1852 | emu->efx_voices_mask[0] = 0; |
1853 | emu->efx_voices_mask[1] = 0xffff; |
1854 | } else { |
1855 | emu->efx_voices_mask[0] = 0xffff0000; |
1856 | emu->efx_voices_mask[1] = 0; |
1857 | } |
1858 | kctl = snd_ctl_new1(kcontrolnew: &snd_emu10k1_pcm_efx_voices_mask, private_data: emu); |
1859 | if (!kctl) |
1860 | return -ENOMEM; |
1861 | kctl->id.device = device; |
1862 | err = snd_ctl_add(card: emu->card, kcontrol: kctl); |
1863 | if (err < 0) |
1864 | return err; |
1865 | } else { |
1866 | // On E-MU cards, the DSP code copies the P16VINs/EMU32INs to |
1867 | // FXBUS2. These are already selected & routed by the FPGA, |
1868 | // so there is no need to apply additional masking. |
1869 | } |
1870 | |
1871 | snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, data: &emu->pci->dev, |
1872 | size: 64*1024, max: 64*1024); |
1873 | |
1874 | return 0; |
1875 | } |
1876 | |