1 /*
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
18
19 /*
20 * 2002-07 Benny Sjostrand benny@hostmobility.com
21 */
22
23
24 #include <linux/io.h>
25 #include <linux/delay.h>
26 #include <linux/pm.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <linux/mutex.h>
30
31 #include <sound/core.h>
32 #include <sound/control.h>
33 #include <sound/info.h>
34 #include "cs46xx.h"
35
36 #include "cs46xx_lib.h"
37 #include "dsp_spos.h"
38
39 struct proc_scb_info {
40 struct dsp_scb_descriptor * scb_desc;
41 struct snd_cs46xx *chip;
42 };
43
remove_symbol(struct snd_cs46xx * chip,struct dsp_symbol_entry * symbol)44 static void remove_symbol (struct snd_cs46xx * chip, struct dsp_symbol_entry * symbol)
45 {
46 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
47 int symbol_index = (int)(symbol - ins->symbol_table.symbols);
48
49 if (snd_BUG_ON(ins->symbol_table.nsymbols <= 0))
50 return;
51 if (snd_BUG_ON(symbol_index < 0 ||
52 symbol_index >= ins->symbol_table.nsymbols))
53 return;
54
55 ins->symbol_table.symbols[symbol_index].deleted = 1;
56
57 if (symbol_index < ins->symbol_table.highest_frag_index) {
58 ins->symbol_table.highest_frag_index = symbol_index;
59 }
60
61 if (symbol_index == ins->symbol_table.nsymbols - 1)
62 ins->symbol_table.nsymbols --;
63
64 if (ins->symbol_table.highest_frag_index > ins->symbol_table.nsymbols) {
65 ins->symbol_table.highest_frag_index = ins->symbol_table.nsymbols;
66 }
67
68 }
69
70 #ifdef CONFIG_SND_PROC_FS
cs46xx_dsp_proc_scb_info_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)71 static void cs46xx_dsp_proc_scb_info_read (struct snd_info_entry *entry,
72 struct snd_info_buffer *buffer)
73 {
74 struct proc_scb_info * scb_info = entry->private_data;
75 struct dsp_scb_descriptor * scb = scb_info->scb_desc;
76 struct snd_cs46xx *chip = scb_info->chip;
77 int j,col;
78 void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
79
80 mutex_lock(&chip->spos_mutex);
81 snd_iprintf(buffer,"%04x %s:\n",scb->address,scb->scb_name);
82
83 for (col = 0,j = 0;j < 0x10; j++,col++) {
84 if (col == 4) {
85 snd_iprintf(buffer,"\n");
86 col = 0;
87 }
88 snd_iprintf(buffer,"%08x ",readl(dst + (scb->address + j) * sizeof(u32)));
89 }
90
91 snd_iprintf(buffer,"\n");
92
93 if (scb->parent_scb_ptr != NULL) {
94 snd_iprintf(buffer,"parent [%s:%04x] ",
95 scb->parent_scb_ptr->scb_name,
96 scb->parent_scb_ptr->address);
97 } else snd_iprintf(buffer,"parent [none] ");
98
99 snd_iprintf(buffer,"sub_list_ptr [%s:%04x]\nnext_scb_ptr [%s:%04x] task_entry [%s:%04x]\n",
100 scb->sub_list_ptr->scb_name,
101 scb->sub_list_ptr->address,
102 scb->next_scb_ptr->scb_name,
103 scb->next_scb_ptr->address,
104 scb->task_entry->symbol_name,
105 scb->task_entry->address);
106
107 snd_iprintf(buffer,"index [%d] ref_count [%d]\n",scb->index,scb->ref_count);
108 mutex_unlock(&chip->spos_mutex);
109 }
110 #endif
111
_dsp_unlink_scb(struct snd_cs46xx * chip,struct dsp_scb_descriptor * scb)112 static void _dsp_unlink_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
113 {
114 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
115
116 if ( scb->parent_scb_ptr ) {
117 /* unlink parent SCB */
118 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != scb &&
119 scb->parent_scb_ptr->next_scb_ptr != scb))
120 return;
121
122 if (scb->parent_scb_ptr->sub_list_ptr == scb) {
123
124 if (scb->next_scb_ptr == ins->the_null_scb) {
125 /* last and only node in parent sublist */
126 scb->parent_scb_ptr->sub_list_ptr = scb->sub_list_ptr;
127
128 if (scb->sub_list_ptr != ins->the_null_scb) {
129 scb->sub_list_ptr->parent_scb_ptr = scb->parent_scb_ptr;
130 }
131 scb->sub_list_ptr = ins->the_null_scb;
132 } else {
133 /* first node in parent sublist */
134 scb->parent_scb_ptr->sub_list_ptr = scb->next_scb_ptr;
135
136 if (scb->next_scb_ptr != ins->the_null_scb) {
137 /* update next node parent ptr. */
138 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
139 }
140 scb->next_scb_ptr = ins->the_null_scb;
141 }
142 } else {
143 scb->parent_scb_ptr->next_scb_ptr = scb->next_scb_ptr;
144
145 if (scb->next_scb_ptr != ins->the_null_scb) {
146 /* update next node parent ptr. */
147 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
148 }
149 scb->next_scb_ptr = ins->the_null_scb;
150 }
151
152 /* update parent first entry in DSP RAM */
153 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
154
155 /* then update entry in DSP RAM */
156 cs46xx_dsp_spos_update_scb(chip,scb);
157
158 scb->parent_scb_ptr = NULL;
159 }
160 }
161
_dsp_clear_sample_buffer(struct snd_cs46xx * chip,u32 sample_buffer_addr,int dword_count)162 static void _dsp_clear_sample_buffer (struct snd_cs46xx *chip, u32 sample_buffer_addr,
163 int dword_count)
164 {
165 void __iomem *dst = chip->region.idx[2].remap_addr + sample_buffer_addr;
166 int i;
167
168 for (i = 0; i < dword_count ; ++i ) {
169 writel(0, dst);
170 dst += 4;
171 }
172 }
173
cs46xx_dsp_remove_scb(struct snd_cs46xx * chip,struct dsp_scb_descriptor * scb)174 void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
175 {
176 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
177 unsigned long flags;
178
179 /* check integrety */
180 if (snd_BUG_ON(scb->index < 0 ||
181 scb->index >= ins->nscb ||
182 (ins->scbs + scb->index) != scb))
183 return;
184
185 #if 0
186 /* can't remove a SCB with childs before
187 removing childs first */
188 if (snd_BUG_ON(scb->sub_list_ptr != ins->the_null_scb ||
189 scb->next_scb_ptr != ins->the_null_scb))
190 goto _end;
191 #endif
192
193 spin_lock_irqsave(&chip->reg_lock, flags);
194 _dsp_unlink_scb (chip,scb);
195 spin_unlock_irqrestore(&chip->reg_lock, flags);
196
197 cs46xx_dsp_proc_free_scb_desc(scb);
198 if (snd_BUG_ON(!scb->scb_symbol))
199 return;
200 remove_symbol (chip,scb->scb_symbol);
201
202 ins->scbs[scb->index].deleted = 1;
203 #ifdef CONFIG_PM_SLEEP
204 kfree(ins->scbs[scb->index].data);
205 ins->scbs[scb->index].data = NULL;
206 #endif
207
208 if (scb->index < ins->scb_highest_frag_index)
209 ins->scb_highest_frag_index = scb->index;
210
211 if (scb->index == ins->nscb - 1) {
212 ins->nscb --;
213 }
214
215 if (ins->scb_highest_frag_index > ins->nscb) {
216 ins->scb_highest_frag_index = ins->nscb;
217 }
218
219 #if 0
220 /* !!!! THIS IS A PIECE OF SHIT MADE BY ME !!! */
221 for(i = scb->index + 1;i < ins->nscb; ++i) {
222 ins->scbs[i - 1].index = i - 1;
223 }
224 #endif
225 }
226
227
228 #ifdef CONFIG_SND_PROC_FS
cs46xx_dsp_proc_free_scb_desc(struct dsp_scb_descriptor * scb)229 void cs46xx_dsp_proc_free_scb_desc (struct dsp_scb_descriptor * scb)
230 {
231 if (scb->proc_info) {
232 struct proc_scb_info * scb_info = scb->proc_info->private_data;
233 struct snd_cs46xx *chip = scb_info->chip;
234
235 dev_dbg(chip->card->dev,
236 "cs46xx_dsp_proc_free_scb_desc: freeing %s\n",
237 scb->scb_name);
238
239 snd_info_free_entry(scb->proc_info);
240 scb->proc_info = NULL;
241
242 kfree (scb_info);
243 }
244 }
245
cs46xx_dsp_proc_register_scb_desc(struct snd_cs46xx * chip,struct dsp_scb_descriptor * scb)246 void cs46xx_dsp_proc_register_scb_desc (struct snd_cs46xx *chip,
247 struct dsp_scb_descriptor * scb)
248 {
249 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
250 struct snd_info_entry * entry;
251 struct proc_scb_info * scb_info;
252
253 /* register to proc */
254 if (ins->snd_card != NULL && ins->proc_dsp_dir != NULL &&
255 scb->proc_info == NULL) {
256
257 if ((entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
258 ins->proc_dsp_dir)) != NULL) {
259 scb_info = kmalloc(sizeof(struct proc_scb_info), GFP_KERNEL);
260 if (!scb_info) {
261 snd_info_free_entry(entry);
262 entry = NULL;
263 goto out;
264 }
265
266 scb_info->chip = chip;
267 scb_info->scb_desc = scb;
268
269 entry->content = SNDRV_INFO_CONTENT_TEXT;
270 entry->private_data = scb_info;
271 entry->mode = S_IFREG | 0644;
272
273 entry->c.text.read = cs46xx_dsp_proc_scb_info_read;
274
275 if (snd_info_register(entry) < 0) {
276 snd_info_free_entry(entry);
277 kfree (scb_info);
278 entry = NULL;
279 }
280 }
281 out:
282 scb->proc_info = entry;
283 }
284 }
285 #endif /* CONFIG_SND_PROC_FS */
286
287 static struct dsp_scb_descriptor *
_dsp_create_generic_scb(struct snd_cs46xx * chip,char * name,u32 * scb_data,u32 dest,struct dsp_symbol_entry * task_entry,struct dsp_scb_descriptor * parent_scb,int scb_child_type)288 _dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u32 dest,
289 struct dsp_symbol_entry * task_entry,
290 struct dsp_scb_descriptor * parent_scb,
291 int scb_child_type)
292 {
293 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
294 struct dsp_scb_descriptor * scb;
295
296 unsigned long flags;
297
298 if (snd_BUG_ON(!ins->the_null_scb))
299 return NULL;
300
301 /* fill the data that will be wroten to DSP */
302 scb_data[SCBsubListPtr] =
303 (ins->the_null_scb->address << 0x10) | ins->the_null_scb->address;
304
305 scb_data[SCBfuncEntryPtr] &= 0xFFFF0000;
306 scb_data[SCBfuncEntryPtr] |= task_entry->address;
307
308 dev_dbg(chip->card->dev, "dsp_spos: creating SCB <%s>\n", name);
309
310 scb = cs46xx_dsp_create_scb(chip,name,scb_data,dest);
311
312
313 scb->sub_list_ptr = ins->the_null_scb;
314 scb->next_scb_ptr = ins->the_null_scb;
315
316 scb->parent_scb_ptr = parent_scb;
317 scb->task_entry = task_entry;
318
319
320 /* update parent SCB */
321 if (scb->parent_scb_ptr) {
322 #if 0
323 dev_dbg(chip->card->dev,
324 "scb->parent_scb_ptr = %s\n",
325 scb->parent_scb_ptr->scb_name);
326 dev_dbg(chip->card->dev,
327 "scb->parent_scb_ptr->next_scb_ptr = %s\n",
328 scb->parent_scb_ptr->next_scb_ptr->scb_name);
329 dev_dbg(chip->card->dev,
330 "scb->parent_scb_ptr->sub_list_ptr = %s\n",
331 scb->parent_scb_ptr->sub_list_ptr->scb_name);
332 #endif
333 /* link to parent SCB */
334 if (scb_child_type == SCB_ON_PARENT_NEXT_SCB) {
335 if (snd_BUG_ON(scb->parent_scb_ptr->next_scb_ptr !=
336 ins->the_null_scb))
337 return NULL;
338
339 scb->parent_scb_ptr->next_scb_ptr = scb;
340
341 } else if (scb_child_type == SCB_ON_PARENT_SUBLIST_SCB) {
342 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr !=
343 ins->the_null_scb))
344 return NULL;
345
346 scb->parent_scb_ptr->sub_list_ptr = scb;
347 } else {
348 snd_BUG();
349 }
350
351 spin_lock_irqsave(&chip->reg_lock, flags);
352
353 /* update entry in DSP RAM */
354 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
355
356 spin_unlock_irqrestore(&chip->reg_lock, flags);
357 }
358
359
360 cs46xx_dsp_proc_register_scb_desc (chip,scb);
361
362 return scb;
363 }
364
365 static struct dsp_scb_descriptor *
cs46xx_dsp_create_generic_scb(struct snd_cs46xx * chip,char * name,u32 * scb_data,u32 dest,char * task_entry_name,struct dsp_scb_descriptor * parent_scb,int scb_child_type)366 cs46xx_dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data,
367 u32 dest, char * task_entry_name,
368 struct dsp_scb_descriptor * parent_scb,
369 int scb_child_type)
370 {
371 struct dsp_symbol_entry * task_entry;
372
373 task_entry = cs46xx_dsp_lookup_symbol (chip,task_entry_name,
374 SYMBOL_CODE);
375
376 if (task_entry == NULL) {
377 dev_err(chip->card->dev,
378 "dsp_spos: symbol %s not found\n", task_entry_name);
379 return NULL;
380 }
381
382 return _dsp_create_generic_scb (chip,name,scb_data,dest,task_entry,
383 parent_scb,scb_child_type);
384 }
385
386 struct dsp_scb_descriptor *
cs46xx_dsp_create_timing_master_scb(struct snd_cs46xx * chip)387 cs46xx_dsp_create_timing_master_scb (struct snd_cs46xx *chip)
388 {
389 struct dsp_scb_descriptor * scb;
390
391 struct dsp_timing_master_scb timing_master_scb = {
392 { 0,
393 0,
394 0,
395 0
396 },
397 { 0,
398 0,
399 0,
400 0,
401 0
402 },
403 0,0,
404 0,NULL_SCB_ADDR,
405 0,0, /* extraSampleAccum:TMreserved */
406 0,0, /* codecFIFOptr:codecFIFOsyncd */
407 0x0001,0x8000, /* fracSampAccumQm1:TMfrmsLeftInGroup */
408 0x0001,0x0000, /* fracSampCorrectionQm1:TMfrmGroupLength */
409 0x00060000 /* nSampPerFrmQ15 */
410 };
411
412 scb = cs46xx_dsp_create_generic_scb(chip,"TimingMasterSCBInst",(u32 *)&timing_master_scb,
413 TIMINGMASTER_SCB_ADDR,
414 "TIMINGMASTER",NULL,SCB_NO_PARENT);
415
416 return scb;
417 }
418
419
420 struct dsp_scb_descriptor *
cs46xx_dsp_create_codec_out_scb(struct snd_cs46xx * chip,char * codec_name,u16 channel_disp,u16 fifo_addr,u16 child_scb_addr,u32 dest,struct dsp_scb_descriptor * parent_scb,int scb_child_type)421 cs46xx_dsp_create_codec_out_scb(struct snd_cs46xx * chip, char * codec_name,
422 u16 channel_disp, u16 fifo_addr, u16 child_scb_addr,
423 u32 dest, struct dsp_scb_descriptor * parent_scb,
424 int scb_child_type)
425 {
426 struct dsp_scb_descriptor * scb;
427
428 struct dsp_codec_output_scb codec_out_scb = {
429 { 0,
430 0,
431 0,
432 0
433 },
434 {
435 0,
436 0,
437 0,
438 0,
439 0
440 },
441 0,0,
442 0,NULL_SCB_ADDR,
443 0, /* COstrmRsConfig */
444 0, /* COstrmBufPtr */
445 channel_disp,fifo_addr, /* leftChanBaseIOaddr:rightChanIOdisp */
446 0x0000,0x0080, /* (!AC97!) COexpVolChangeRate:COscaleShiftCount */
447 0,child_scb_addr /* COreserved - need child scb to work with rom code */
448 };
449
450
451 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_out_scb,
452 dest,"S16_CODECOUTPUTTASK",parent_scb,
453 scb_child_type);
454
455 return scb;
456 }
457
458 struct dsp_scb_descriptor *
cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip,char * codec_name,u16 channel_disp,u16 fifo_addr,u16 sample_buffer_addr,u32 dest,struct dsp_scb_descriptor * parent_scb,int scb_child_type)459 cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip, char * codec_name,
460 u16 channel_disp, u16 fifo_addr, u16 sample_buffer_addr,
461 u32 dest, struct dsp_scb_descriptor * parent_scb,
462 int scb_child_type)
463 {
464
465 struct dsp_scb_descriptor * scb;
466 struct dsp_codec_input_scb codec_input_scb = {
467 { 0,
468 0,
469 0,
470 0
471 },
472 {
473 0,
474 0,
475 0,
476 0,
477 0
478 },
479
480 #if 0 /* cs4620 */
481 SyncIOSCB,NULL_SCB_ADDR
482 #else
483 0 , 0,
484 #endif
485 0,0,
486
487 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64, /* strmRsConfig */
488 sample_buffer_addr << 0x10, /* strmBufPtr; defined as a dword ptr, used as a byte ptr */
489 channel_disp,fifo_addr, /* (!AC97!) leftChanBaseINaddr=AC97primary
490 link input slot 3 :rightChanINdisp=""slot 4 */
491 0x0000,0x0000, /* (!AC97!) ????:scaleShiftCount; no shift needed
492 because AC97 is already 20 bits */
493 0x80008000 /* ??clw cwcgame.scb has 0 */
494 };
495
496 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_input_scb,
497 dest,"S16_CODECINPUTTASK",parent_scb,
498 scb_child_type);
499 return scb;
500 }
501
502
503 static struct dsp_scb_descriptor *
cs46xx_dsp_create_pcm_reader_scb(struct snd_cs46xx * chip,char * scb_name,u16 sample_buffer_addr,u32 dest,int virtual_channel,u32 playback_hw_addr,struct dsp_scb_descriptor * parent_scb,int scb_child_type)504 cs46xx_dsp_create_pcm_reader_scb(struct snd_cs46xx * chip, char * scb_name,
505 u16 sample_buffer_addr, u32 dest,
506 int virtual_channel, u32 playback_hw_addr,
507 struct dsp_scb_descriptor * parent_scb,
508 int scb_child_type)
509 {
510 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
511 struct dsp_scb_descriptor * scb;
512
513 struct dsp_generic_scb pcm_reader_scb = {
514
515 /*
516 Play DMA Task xfers data from host buffer to SP buffer
517 init/runtime variables:
518 PlayAC: Play Audio Data Conversion - SCB loc: 2nd dword, mask: 0x0000F000L
519 DATA_FMT_16BIT_ST_LTLEND(0x00000000L) from 16-bit stereo, little-endian
520 DATA_FMT_8_BIT_ST_SIGNED(0x00001000L) from 8-bit stereo, signed
521 DATA_FMT_16BIT_MN_LTLEND(0x00002000L) from 16-bit mono, little-endian
522 DATA_FMT_8_BIT_MN_SIGNED(0x00003000L) from 8-bit mono, signed
523 DATA_FMT_16BIT_ST_BIGEND(0x00004000L) from 16-bit stereo, big-endian
524 DATA_FMT_16BIT_MN_BIGEND(0x00006000L) from 16-bit mono, big-endian
525 DATA_FMT_8_BIT_ST_UNSIGNED(0x00009000L) from 8-bit stereo, unsigned
526 DATA_FMT_8_BIT_MN_UNSIGNED(0x0000b000L) from 8-bit mono, unsigned
527 ? Other combinations possible from:
528 DMA_RQ_C2_AUDIO_CONVERT_MASK 0x0000F000L
529 DMA_RQ_C2_AC_NONE 0x00000000L
530 DMA_RQ_C2_AC_8_TO_16_BIT 0x00001000L
531 DMA_RQ_C2_AC_MONO_TO_STEREO 0x00002000L
532 DMA_RQ_C2_AC_ENDIAN_CONVERT 0x00004000L
533 DMA_RQ_C2_AC_SIGNED_CONVERT 0x00008000L
534
535 HostBuffAddr: Host Buffer Physical Byte Address - SCB loc:3rd dword, Mask: 0xFFFFFFFFL
536 aligned to dword boundary
537 */
538 /* Basic (non scatter/gather) DMA requestor (4 ints) */
539 { DMA_RQ_C1_SOURCE_ON_HOST + /* source buffer is on the host */
540 DMA_RQ_C1_SOURCE_MOD1024 + /* source buffer is 1024 dwords (4096 bytes) */
541 DMA_RQ_C1_DEST_MOD32 + /* dest buffer(PCMreaderBuf) is 32 dwords*/
542 DMA_RQ_C1_WRITEBACK_SRC_FLAG + /* ?? */
543 DMA_RQ_C1_WRITEBACK_DEST_FLAG + /* ?? */
544 15, /* DwordCount-1: picked 16 for DwordCount because Jim */
545 /* Barnette said that is what we should use since */
546 /* we are not running in optimized mode? */
547 DMA_RQ_C2_AC_NONE +
548 DMA_RQ_C2_SIGNAL_SOURCE_PINGPONG + /* set play interrupt (bit0) in HISR when source */
549 /* buffer (on host) crosses half-way point */
550 virtual_channel, /* Play DMA channel arbitrarily set to 0 */
551 playback_hw_addr, /* HostBuffAddr (source) */
552 DMA_RQ_SD_SP_SAMPLE_ADDR + /* destination buffer is in SP Sample Memory */
553 sample_buffer_addr /* SP Buffer Address (destination) */
554 },
555 /* Scatter/gather DMA requestor extension (5 ints) */
556 {
557 0,
558 0,
559 0,
560 0,
561 0
562 },
563 /* Sublist pointer & next stream control block (SCB) link. */
564 NULL_SCB_ADDR,NULL_SCB_ADDR,
565 /* Pointer to this tasks parameter block & stream function pointer */
566 0,NULL_SCB_ADDR,
567 /* rsConfig register for stream buffer (rsDMA reg. is loaded from basicReq.daw */
568 /* for incoming streams, or basicReq.saw, for outgoing streams) */
569 RSCONFIG_DMA_ENABLE + /* enable DMA */
570 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) + /* MAX_DMA_SIZE picked to be 19 since SPUD */
571 /* uses it for some reason */
572 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) + /* stream number = SCBaddr/16 */
573 RSCONFIG_SAMPLE_16STEREO +
574 RSCONFIG_MODULO_32, /* dest buffer(PCMreaderBuf) is 32 dwords (256 bytes) */
575 /* Stream sample pointer & MAC-unit mode for this stream */
576 (sample_buffer_addr << 0x10),
577 /* Fractional increment per output sample in the input sample buffer */
578 0,
579 {
580 /* Standard stereo volume control
581 default muted */
582 0xffff,0xffff,
583 0xffff,0xffff
584 }
585 };
586
587 if (ins->null_algorithm == NULL) {
588 ins->null_algorithm = cs46xx_dsp_lookup_symbol (chip,"NULLALGORITHM",
589 SYMBOL_CODE);
590
591 if (ins->null_algorithm == NULL) {
592 dev_err(chip->card->dev,
593 "dsp_spos: symbol NULLALGORITHM not found\n");
594 return NULL;
595 }
596 }
597
598 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_reader_scb,
599 dest,ins->null_algorithm,parent_scb,
600 scb_child_type);
601
602 return scb;
603 }
604
605 #define GOF_PER_SEC 200
606
607 struct dsp_scb_descriptor *
cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip,char * scb_name,int rate,u16 src_buffer_addr,u16 src_delay_buffer_addr,u32 dest,struct dsp_scb_descriptor * parent_scb,int scb_child_type,int pass_through)608 cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip, char * scb_name,
609 int rate,
610 u16 src_buffer_addr,
611 u16 src_delay_buffer_addr, u32 dest,
612 struct dsp_scb_descriptor * parent_scb,
613 int scb_child_type,
614 int pass_through)
615 {
616
617 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
618 struct dsp_scb_descriptor * scb;
619 unsigned int tmp1, tmp2;
620 unsigned int phiIncr;
621 unsigned int correctionPerGOF, correctionPerSec;
622
623 dev_dbg(chip->card->dev, "dsp_spos: setting %s rate to %u\n",
624 scb_name, rate);
625
626 /*
627 * Compute the values used to drive the actual sample rate conversion.
628 * The following formulas are being computed, using inline assembly
629 * since we need to use 64 bit arithmetic to compute the values:
630 *
631 * phiIncr = floor((Fs,in * 2^26) / Fs,out)
632 * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
633 * GOF_PER_SEC)
634 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
635 * GOF_PER_SEC * correctionPerGOF
636 *
637 * i.e.
638 *
639 * phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
640 * correctionPerGOF:correctionPerSec =
641 * dividend:remainder(ulOther / GOF_PER_SEC)
642 */
643 tmp1 = rate << 16;
644 phiIncr = tmp1 / 48000;
645 tmp1 -= phiIncr * 48000;
646 tmp1 <<= 10;
647 phiIncr <<= 10;
648 tmp2 = tmp1 / 48000;
649 phiIncr += tmp2;
650 tmp1 -= tmp2 * 48000;
651 correctionPerGOF = tmp1 / GOF_PER_SEC;
652 tmp1 -= correctionPerGOF * GOF_PER_SEC;
653 correctionPerSec = tmp1;
654
655 {
656 struct dsp_src_task_scb src_task_scb = {
657 0x0028,0x00c8,
658 0x5555,0x0000,
659 0x0000,0x0000,
660 src_buffer_addr,1,
661 correctionPerGOF,correctionPerSec,
662 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
663 0x0000,src_delay_buffer_addr,
664 0x0,
665 0x080,(src_delay_buffer_addr + (24 * 4)),
666 0,0, /* next_scb, sub_list_ptr */
667 0,0, /* entry, this_spb */
668 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
669 src_buffer_addr << 0x10,
670 phiIncr,
671 {
672 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left,
673 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left
674 }
675 };
676
677 if (ins->s16_up == NULL) {
678 ins->s16_up = cs46xx_dsp_lookup_symbol (chip,"S16_UPSRC",
679 SYMBOL_CODE);
680
681 if (ins->s16_up == NULL) {
682 dev_err(chip->card->dev,
683 "dsp_spos: symbol S16_UPSRC not found\n");
684 return NULL;
685 }
686 }
687
688 /* clear buffers */
689 _dsp_clear_sample_buffer (chip,src_buffer_addr,8);
690 _dsp_clear_sample_buffer (chip,src_delay_buffer_addr,32);
691
692 if (pass_through) {
693 /* wont work with any other rate than
694 the native DSP rate */
695 snd_BUG_ON(rate != 48000);
696
697 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
698 dest,"DMAREADER",parent_scb,
699 scb_child_type);
700 } else {
701 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
702 dest,ins->s16_up,parent_scb,
703 scb_child_type);
704 }
705
706
707 }
708
709 return scb;
710 }
711
712 #if 0 /* not used */
713 struct dsp_scb_descriptor *
714 cs46xx_dsp_create_filter_scb(struct snd_cs46xx * chip, char * scb_name,
715 u16 buffer_addr, u32 dest,
716 struct dsp_scb_descriptor * parent_scb,
717 int scb_child_type) {
718 struct dsp_scb_descriptor * scb;
719
720 struct dsp_filter_scb filter_scb = {
721 .a0_right = 0x41a9,
722 .a0_left = 0x41a9,
723 .a1_right = 0xb8e4,
724 .a1_left = 0xb8e4,
725 .a2_right = 0x3e55,
726 .a2_left = 0x3e55,
727
728 .filter_unused3 = 0x0000,
729 .filter_unused2 = 0x0000,
730
731 .output_buf_ptr = buffer_addr,
732 .init = 0x000,
733
734 .prev_sample_output1 = 0x00000000,
735 .prev_sample_output2 = 0x00000000,
736
737 .prev_sample_input1 = 0x00000000,
738 .prev_sample_input2 = 0x00000000,
739
740 .next_scb_ptr = 0x0000,
741 .sub_list_ptr = 0x0000,
742
743 .entry_point = 0x0000,
744 .spb_ptr = 0x0000,
745
746 .b0_right = 0x0e38,
747 .b0_left = 0x0e38,
748 .b1_right = 0x1c71,
749 .b1_left = 0x1c71,
750 .b2_right = 0x0e38,
751 .b2_left = 0x0e38,
752 };
753
754
755 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&filter_scb,
756 dest,"FILTERTASK",parent_scb,
757 scb_child_type);
758
759 return scb;
760 }
761 #endif /* not used */
762
763 struct dsp_scb_descriptor *
cs46xx_dsp_create_mix_only_scb(struct snd_cs46xx * chip,char * scb_name,u16 mix_buffer_addr,u32 dest,struct dsp_scb_descriptor * parent_scb,int scb_child_type)764 cs46xx_dsp_create_mix_only_scb(struct snd_cs46xx * chip, char * scb_name,
765 u16 mix_buffer_addr, u32 dest,
766 struct dsp_scb_descriptor * parent_scb,
767 int scb_child_type)
768 {
769 struct dsp_scb_descriptor * scb;
770
771 struct dsp_mix_only_scb master_mix_scb = {
772 /* 0 */ { 0,
773 /* 1 */ 0,
774 /* 2 */ mix_buffer_addr,
775 /* 3 */ 0
776 /* */ },
777 {
778 /* 4 */ 0,
779 /* 5 */ 0,
780 /* 6 */ 0,
781 /* 7 */ 0,
782 /* 8 */ 0x00000080
783 },
784 /* 9 */ 0,0,
785 /* A */ 0,0,
786 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
787 /* C */ (mix_buffer_addr + (16 * 4)) << 0x10,
788 /* D */ 0,
789 {
790 /* E */ 0x8000,0x8000,
791 /* F */ 0x8000,0x8000
792 }
793 };
794
795
796 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&master_mix_scb,
797 dest,"S16_MIX",parent_scb,
798 scb_child_type);
799 return scb;
800 }
801
802
803 struct dsp_scb_descriptor *
cs46xx_dsp_create_mix_to_ostream_scb(struct snd_cs46xx * chip,char * scb_name,u16 mix_buffer_addr,u16 writeback_spb,u32 dest,struct dsp_scb_descriptor * parent_scb,int scb_child_type)804 cs46xx_dsp_create_mix_to_ostream_scb(struct snd_cs46xx * chip, char * scb_name,
805 u16 mix_buffer_addr, u16 writeback_spb, u32 dest,
806 struct dsp_scb_descriptor * parent_scb,
807 int scb_child_type)
808 {
809 struct dsp_scb_descriptor * scb;
810
811 struct dsp_mix2_ostream_scb mix2_ostream_scb = {
812 /* Basic (non scatter/gather) DMA requestor (4 ints) */
813 {
814 DMA_RQ_C1_SOURCE_MOD64 +
815 DMA_RQ_C1_DEST_ON_HOST +
816 DMA_RQ_C1_DEST_MOD1024 +
817 DMA_RQ_C1_WRITEBACK_SRC_FLAG +
818 DMA_RQ_C1_WRITEBACK_DEST_FLAG +
819 15,
820
821 DMA_RQ_C2_AC_NONE +
822 DMA_RQ_C2_SIGNAL_DEST_PINGPONG +
823
824 CS46XX_DSP_CAPTURE_CHANNEL,
825 DMA_RQ_SD_SP_SAMPLE_ADDR +
826 mix_buffer_addr,
827 0x0
828 },
829
830 { 0, 0, 0, 0, 0, },
831 0,0,
832 0,writeback_spb,
833
834 RSCONFIG_DMA_ENABLE +
835 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) +
836
837 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) +
838 RSCONFIG_DMA_TO_HOST +
839 RSCONFIG_SAMPLE_16STEREO +
840 RSCONFIG_MODULO_64,
841 (mix_buffer_addr + (32 * 4)) << 0x10,
842 1,0,
843 0x0001,0x0080,
844 0xFFFF,0
845 };
846
847
848 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&mix2_ostream_scb,
849
850 dest,"S16_MIX_TO_OSTREAM",parent_scb,
851 scb_child_type);
852
853 return scb;
854 }
855
856
857 struct dsp_scb_descriptor *
cs46xx_dsp_create_vari_decimate_scb(struct snd_cs46xx * chip,char * scb_name,u16 vari_buffer_addr0,u16 vari_buffer_addr1,u32 dest,struct dsp_scb_descriptor * parent_scb,int scb_child_type)858 cs46xx_dsp_create_vari_decimate_scb(struct snd_cs46xx * chip,char * scb_name,
859 u16 vari_buffer_addr0,
860 u16 vari_buffer_addr1,
861 u32 dest,
862 struct dsp_scb_descriptor * parent_scb,
863 int scb_child_type)
864 {
865
866 struct dsp_scb_descriptor * scb;
867
868 struct dsp_vari_decimate_scb vari_decimate_scb = {
869 0x0028,0x00c8,
870 0x5555,0x0000,
871 0x0000,0x0000,
872 vari_buffer_addr0,vari_buffer_addr1,
873
874 0x0028,0x00c8,
875 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256,
876
877 0xFF800000,
878 0,
879 0x0080,vari_buffer_addr1 + (25 * 4),
880
881 0,0,
882 0,0,
883
884 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
885 vari_buffer_addr0 << 0x10,
886 0x04000000,
887 {
888 0x8000,0x8000,
889 0xFFFF,0xFFFF
890 }
891 };
892
893 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&vari_decimate_scb,
894 dest,"VARIDECIMATE",parent_scb,
895 scb_child_type);
896
897 return scb;
898 }
899
900
901 static struct dsp_scb_descriptor *
cs46xx_dsp_create_pcm_serial_input_scb(struct snd_cs46xx * chip,char * scb_name,u32 dest,struct dsp_scb_descriptor * input_scb,struct dsp_scb_descriptor * parent_scb,int scb_child_type)902 cs46xx_dsp_create_pcm_serial_input_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
903 struct dsp_scb_descriptor * input_scb,
904 struct dsp_scb_descriptor * parent_scb,
905 int scb_child_type)
906 {
907
908 struct dsp_scb_descriptor * scb;
909
910
911 struct dsp_pcm_serial_input_scb pcm_serial_input_scb = {
912 { 0,
913 0,
914 0,
915 0
916 },
917 {
918 0,
919 0,
920 0,
921 0,
922 0
923 },
924
925 0,0,
926 0,0,
927
928 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_16,
929 0,
930 /* 0xD */ 0,input_scb->address,
931 {
932 /* 0xE */ 0x8000,0x8000,
933 /* 0xF */ 0x8000,0x8000
934 }
935 };
936
937 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_serial_input_scb,
938 dest,"PCMSERIALINPUTTASK",parent_scb,
939 scb_child_type);
940 return scb;
941 }
942
943
944 static struct dsp_scb_descriptor *
cs46xx_dsp_create_asynch_fg_tx_scb(struct snd_cs46xx * chip,char * scb_name,u32 dest,u16 hfg_scb_address,u16 asynch_buffer_address,struct dsp_scb_descriptor * parent_scb,int scb_child_type)945 cs46xx_dsp_create_asynch_fg_tx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
946 u16 hfg_scb_address,
947 u16 asynch_buffer_address,
948 struct dsp_scb_descriptor * parent_scb,
949 int scb_child_type)
950 {
951
952 struct dsp_scb_descriptor * scb;
953
954 struct dsp_asynch_fg_tx_scb asynch_fg_tx_scb = {
955 0xfc00,0x03ff, /* Prototype sample buffer size of 256 dwords */
956 0x0058,0x0028, /* Min Delta 7 dwords == 28 bytes */
957 /* : Max delta 25 dwords == 100 bytes */
958 0,hfg_scb_address, /* Point to HFG task SCB */
959 0,0, /* Initialize current Delta and Consumer ptr adjustment count */
960 0, /* Initialize accumulated Phi to 0 */
961 0,0x2aab, /* Const 1/3 */
962
963 {
964 0, /* Define the unused elements */
965 0,
966 0
967 },
968
969 0,0,
970 0,dest + AFGTxAccumPhi,
971
972 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256, /* Stereo, 256 dword */
973 (asynch_buffer_address) << 0x10, /* This should be automagically synchronized
974 to the producer pointer */
975
976 /* There is no correct initial value, it will depend upon the detected
977 rate etc */
978 0x18000000, /* Phi increment for approx 32k operation */
979 0x8000,0x8000, /* Volume controls are unused at this time */
980 0x8000,0x8000
981 };
982
983 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_tx_scb,
984 dest,"ASYNCHFGTXCODE",parent_scb,
985 scb_child_type);
986
987 return scb;
988 }
989
990
991 struct dsp_scb_descriptor *
cs46xx_dsp_create_asynch_fg_rx_scb(struct snd_cs46xx * chip,char * scb_name,u32 dest,u16 hfg_scb_address,u16 asynch_buffer_address,struct dsp_scb_descriptor * parent_scb,int scb_child_type)992 cs46xx_dsp_create_asynch_fg_rx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
993 u16 hfg_scb_address,
994 u16 asynch_buffer_address,
995 struct dsp_scb_descriptor * parent_scb,
996 int scb_child_type)
997 {
998 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
999 struct dsp_scb_descriptor * scb;
1000
1001 struct dsp_asynch_fg_rx_scb asynch_fg_rx_scb = {
1002 0xfe00,0x01ff, /* Prototype sample buffer size of 128 dwords */
1003 0x0064,0x001c, /* Min Delta 7 dwords == 28 bytes */
1004 /* : Max delta 25 dwords == 100 bytes */
1005 0,hfg_scb_address, /* Point to HFG task SCB */
1006 0,0, /* Initialize current Delta and Consumer ptr adjustment count */
1007 {
1008 0, /* Define the unused elements */
1009 0,
1010 0,
1011 0,
1012 0
1013 },
1014
1015 0,0,
1016 0,dest,
1017
1018 RSCONFIG_MODULO_128 |
1019 RSCONFIG_SAMPLE_16STEREO, /* Stereo, 128 dword */
1020 ( (asynch_buffer_address + (16 * 4)) << 0x10), /* This should be automagically
1021 synchrinized to the producer pointer */
1022
1023 /* There is no correct initial value, it will depend upon the detected
1024 rate etc */
1025 0x18000000,
1026
1027 /* Set IEC958 input volume */
1028 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
1029 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
1030 };
1031
1032 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_rx_scb,
1033 dest,"ASYNCHFGRXCODE",parent_scb,
1034 scb_child_type);
1035
1036 return scb;
1037 }
1038
1039
1040 #if 0 /* not used */
1041 struct dsp_scb_descriptor *
1042 cs46xx_dsp_create_output_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1043 u16 snoop_buffer_address,
1044 struct dsp_scb_descriptor * snoop_scb,
1045 struct dsp_scb_descriptor * parent_scb,
1046 int scb_child_type)
1047 {
1048
1049 struct dsp_scb_descriptor * scb;
1050
1051 struct dsp_output_snoop_scb output_snoop_scb = {
1052 { 0, /* not used. Zero */
1053 0,
1054 0,
1055 0,
1056 },
1057 {
1058 0, /* not used. Zero */
1059 0,
1060 0,
1061 0,
1062 0
1063 },
1064
1065 0,0,
1066 0,0,
1067
1068 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1069 snoop_buffer_address << 0x10,
1070 0,0,
1071 0,
1072 0,snoop_scb->address
1073 };
1074
1075 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&output_snoop_scb,
1076 dest,"OUTPUTSNOOP",parent_scb,
1077 scb_child_type);
1078 return scb;
1079 }
1080 #endif /* not used */
1081
1082
1083 struct dsp_scb_descriptor *
cs46xx_dsp_create_spio_write_scb(struct snd_cs46xx * chip,char * scb_name,u32 dest,struct dsp_scb_descriptor * parent_scb,int scb_child_type)1084 cs46xx_dsp_create_spio_write_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1085 struct dsp_scb_descriptor * parent_scb,
1086 int scb_child_type)
1087 {
1088 struct dsp_scb_descriptor * scb;
1089
1090 struct dsp_spio_write_scb spio_write_scb = {
1091 0,0, /* SPIOWAddress2:SPIOWAddress1; */
1092 0, /* SPIOWData1; */
1093 0, /* SPIOWData2; */
1094 0,0, /* SPIOWAddress4:SPIOWAddress3; */
1095 0, /* SPIOWData3; */
1096 0, /* SPIOWData4; */
1097 0,0, /* SPIOWDataPtr:Unused1; */
1098 { 0,0 }, /* Unused2[2]; */
1099
1100 0,0, /* SPIOWChildPtr:SPIOWSiblingPtr; */
1101 0,0, /* SPIOWThisPtr:SPIOWEntryPoint; */
1102
1103 {
1104 0,
1105 0,
1106 0,
1107 0,
1108 0 /* Unused3[5]; */
1109 }
1110 };
1111
1112 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&spio_write_scb,
1113 dest,"SPIOWRITE",parent_scb,
1114 scb_child_type);
1115
1116 return scb;
1117 }
1118
1119 struct dsp_scb_descriptor *
cs46xx_dsp_create_magic_snoop_scb(struct snd_cs46xx * chip,char * scb_name,u32 dest,u16 snoop_buffer_address,struct dsp_scb_descriptor * snoop_scb,struct dsp_scb_descriptor * parent_scb,int scb_child_type)1120 cs46xx_dsp_create_magic_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1121 u16 snoop_buffer_address,
1122 struct dsp_scb_descriptor * snoop_scb,
1123 struct dsp_scb_descriptor * parent_scb,
1124 int scb_child_type)
1125 {
1126 struct dsp_scb_descriptor * scb;
1127
1128 struct dsp_magic_snoop_task magic_snoop_scb = {
1129 /* 0 */ 0, /* i0 */
1130 /* 1 */ 0, /* i1 */
1131 /* 2 */ snoop_buffer_address << 0x10,
1132 /* 3 */ 0,snoop_scb->address,
1133 /* 4 */ 0, /* i3 */
1134 /* 5 */ 0, /* i4 */
1135 /* 6 */ 0, /* i5 */
1136 /* 7 */ 0, /* i6 */
1137 /* 8 */ 0, /* i7 */
1138 /* 9 */ 0,0, /* next_scb, sub_list_ptr */
1139 /* A */ 0,0, /* entry_point, this_ptr */
1140 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1141 /* C */ snoop_buffer_address << 0x10,
1142 /* D */ 0,
1143 /* E */ { 0x8000,0x8000,
1144 /* F */ 0xffff,0xffff
1145 }
1146 };
1147
1148 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&magic_snoop_scb,
1149 dest,"MAGICSNOOPTASK",parent_scb,
1150 scb_child_type);
1151
1152 return scb;
1153 }
1154
1155 static struct dsp_scb_descriptor *
find_next_free_scb(struct snd_cs46xx * chip,struct dsp_scb_descriptor * from)1156 find_next_free_scb (struct snd_cs46xx * chip, struct dsp_scb_descriptor * from)
1157 {
1158 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1159 struct dsp_scb_descriptor * scb = from;
1160
1161 while (scb->next_scb_ptr != ins->the_null_scb) {
1162 if (snd_BUG_ON(!scb->next_scb_ptr))
1163 return NULL;
1164
1165 scb = scb->next_scb_ptr;
1166 }
1167
1168 return scb;
1169 }
1170
1171 static u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = {
1172 0x0600, /* 1 */
1173 0x1500, /* 2 */
1174 0x1580, /* 3 */
1175 0x1600, /* 4 */
1176 0x1680, /* 5 */
1177 0x1700, /* 6 */
1178 0x1780, /* 7 */
1179 0x1800, /* 8 */
1180 0x1880, /* 9 */
1181 0x1900, /* 10 */
1182 0x1980, /* 11 */
1183 0x1A00, /* 12 */
1184 0x1A80, /* 13 */
1185 0x1B00, /* 14 */
1186 0x1B80, /* 15 */
1187 0x1C00, /* 16 */
1188 0x1C80, /* 17 */
1189 0x1D00, /* 18 */
1190 0x1D80, /* 19 */
1191 0x1E00, /* 20 */
1192 0x1E80, /* 21 */
1193 0x1F00, /* 22 */
1194 0x1F80, /* 23 */
1195 0x2000, /* 24 */
1196 0x2080, /* 25 */
1197 0x2100, /* 26 */
1198 0x2180, /* 27 */
1199 0x2200, /* 28 */
1200 0x2280, /* 29 */
1201 0x2300, /* 30 */
1202 0x2380, /* 31 */
1203 0x2400, /* 32 */
1204 };
1205
1206 static u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = {
1207 0x2B80,
1208 0x2BA0,
1209 0x2BC0,
1210 0x2BE0,
1211 0x2D00,
1212 0x2D20,
1213 0x2D40,
1214 0x2D60,
1215 0x2D80,
1216 0x2DA0,
1217 0x2DC0,
1218 0x2DE0,
1219 0x2E00,
1220 0x2E20
1221 };
1222
1223 static u32 src_delay_buffer_addr[DSP_MAX_SRC_NR] = {
1224 0x2480,
1225 0x2500,
1226 0x2580,
1227 0x2600,
1228 0x2680,
1229 0x2700,
1230 0x2780,
1231 0x2800,
1232 0x2880,
1233 0x2900,
1234 0x2980,
1235 0x2A00,
1236 0x2A80,
1237 0x2B00
1238 };
1239
1240 struct dsp_pcm_channel_descriptor *
cs46xx_dsp_create_pcm_channel(struct snd_cs46xx * chip,u32 sample_rate,void * private_data,u32 hw_dma_addr,int pcm_channel_id)1241 cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip,
1242 u32 sample_rate, void * private_data,
1243 u32 hw_dma_addr,
1244 int pcm_channel_id)
1245 {
1246 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1247 struct dsp_scb_descriptor * src_scb = NULL, * pcm_scb, * mixer_scb = NULL;
1248 struct dsp_scb_descriptor * src_parent_scb = NULL;
1249
1250 /* struct dsp_scb_descriptor * pcm_parent_scb; */
1251 char scb_name[DSP_MAX_SCB_NAME];
1252 int i, pcm_index = -1, insert_point, src_index = -1, pass_through = 0;
1253 unsigned long flags;
1254
1255 switch (pcm_channel_id) {
1256 case DSP_PCM_MAIN_CHANNEL:
1257 mixer_scb = ins->master_mix_scb;
1258 break;
1259 case DSP_PCM_REAR_CHANNEL:
1260 mixer_scb = ins->rear_mix_scb;
1261 break;
1262 case DSP_PCM_CENTER_LFE_CHANNEL:
1263 mixer_scb = ins->center_lfe_mix_scb;
1264 break;
1265 case DSP_PCM_S71_CHANNEL:
1266 /* TODO */
1267 snd_BUG();
1268 break;
1269 case DSP_IEC958_CHANNEL:
1270 if (snd_BUG_ON(!ins->asynch_tx_scb))
1271 return NULL;
1272 mixer_scb = ins->asynch_tx_scb;
1273
1274 /* if sample rate is set to 48khz we pass
1275 the Sample Rate Converted (which could
1276 alter the raw data stream ...) */
1277 if (sample_rate == 48000) {
1278 dev_dbg(chip->card->dev, "IEC958 pass through\n");
1279 /* Hack to bypass creating a new SRC */
1280 pass_through = 1;
1281 }
1282 break;
1283 default:
1284 snd_BUG();
1285 return NULL;
1286 }
1287 /* default sample rate is 44100 */
1288 if (!sample_rate) sample_rate = 44100;
1289
1290 /* search for a already created SRC SCB with the same sample rate */
1291 for (i = 0; i < DSP_MAX_PCM_CHANNELS &&
1292 (pcm_index == -1 || src_scb == NULL); ++i) {
1293
1294 /* virtual channel reserved
1295 for capture */
1296 if (i == CS46XX_DSP_CAPTURE_CHANNEL) continue;
1297
1298 if (ins->pcm_channels[i].active) {
1299 if (!src_scb &&
1300 ins->pcm_channels[i].sample_rate == sample_rate &&
1301 ins->pcm_channels[i].mixer_scb == mixer_scb) {
1302 src_scb = ins->pcm_channels[i].src_scb;
1303 ins->pcm_channels[i].src_scb->ref_count ++;
1304 src_index = ins->pcm_channels[i].src_slot;
1305 }
1306 } else if (pcm_index == -1) {
1307 pcm_index = i;
1308 }
1309 }
1310
1311 if (pcm_index == -1) {
1312 dev_err(chip->card->dev, "dsp_spos: no free PCM channel\n");
1313 return NULL;
1314 }
1315
1316 if (src_scb == NULL) {
1317 if (ins->nsrc_scb >= DSP_MAX_SRC_NR) {
1318 dev_err(chip->card->dev,
1319 "dsp_spos: to many SRC instances\n!");
1320 return NULL;
1321 }
1322
1323 /* find a free slot */
1324 for (i = 0; i < DSP_MAX_SRC_NR; ++i) {
1325 if (ins->src_scb_slots[i] == 0) {
1326 src_index = i;
1327 ins->src_scb_slots[i] = 1;
1328 break;
1329 }
1330 }
1331 if (snd_BUG_ON(src_index == -1))
1332 return NULL;
1333
1334 /* we need to create a new SRC SCB */
1335 if (mixer_scb->sub_list_ptr == ins->the_null_scb) {
1336 src_parent_scb = mixer_scb;
1337 insert_point = SCB_ON_PARENT_SUBLIST_SCB;
1338 } else {
1339 src_parent_scb = find_next_free_scb(chip,mixer_scb->sub_list_ptr);
1340 insert_point = SCB_ON_PARENT_NEXT_SCB;
1341 }
1342
1343 snprintf (scb_name,DSP_MAX_SCB_NAME,"SrcTask_SCB%d",src_index);
1344
1345 dev_dbg(chip->card->dev,
1346 "dsp_spos: creating SRC \"%s\"\n", scb_name);
1347 src_scb = cs46xx_dsp_create_src_task_scb(chip,scb_name,
1348 sample_rate,
1349 src_output_buffer_addr[src_index],
1350 src_delay_buffer_addr[src_index],
1351 /* 0x400 - 0x600 source SCBs */
1352 0x400 + (src_index * 0x10) ,
1353 src_parent_scb,
1354 insert_point,
1355 pass_through);
1356
1357 if (!src_scb) {
1358 dev_err(chip->card->dev,
1359 "dsp_spos: failed to create SRCtaskSCB\n");
1360 return NULL;
1361 }
1362
1363 /* cs46xx_dsp_set_src_sample_rate(chip,src_scb,sample_rate); */
1364
1365 ins->nsrc_scb ++;
1366 }
1367
1368
1369 snprintf (scb_name,DSP_MAX_SCB_NAME,"PCMReader_SCB%d",pcm_index);
1370
1371 dev_dbg(chip->card->dev, "dsp_spos: creating PCM \"%s\" (%d)\n",
1372 scb_name, pcm_channel_id);
1373
1374 pcm_scb = cs46xx_dsp_create_pcm_reader_scb(chip,scb_name,
1375 pcm_reader_buffer_addr[pcm_index],
1376 /* 0x200 - 400 PCMreader SCBs */
1377 (pcm_index * 0x10) + 0x200,
1378 pcm_index, /* virtual channel 0-31 */
1379 hw_dma_addr, /* pcm hw addr */
1380 NULL, /* parent SCB ptr */
1381 0 /* insert point */
1382 );
1383
1384 if (!pcm_scb) {
1385 dev_err(chip->card->dev,
1386 "dsp_spos: failed to create PCMreaderSCB\n");
1387 return NULL;
1388 }
1389
1390 spin_lock_irqsave(&chip->reg_lock, flags);
1391 ins->pcm_channels[pcm_index].sample_rate = sample_rate;
1392 ins->pcm_channels[pcm_index].pcm_reader_scb = pcm_scb;
1393 ins->pcm_channels[pcm_index].src_scb = src_scb;
1394 ins->pcm_channels[pcm_index].unlinked = 1;
1395 ins->pcm_channels[pcm_index].private_data = private_data;
1396 ins->pcm_channels[pcm_index].src_slot = src_index;
1397 ins->pcm_channels[pcm_index].active = 1;
1398 ins->pcm_channels[pcm_index].pcm_slot = pcm_index;
1399 ins->pcm_channels[pcm_index].mixer_scb = mixer_scb;
1400 ins->npcm_channels ++;
1401 spin_unlock_irqrestore(&chip->reg_lock, flags);
1402
1403 return (ins->pcm_channels + pcm_index);
1404 }
1405
cs46xx_dsp_pcm_channel_set_period(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel,int period_size)1406 int cs46xx_dsp_pcm_channel_set_period (struct snd_cs46xx * chip,
1407 struct dsp_pcm_channel_descriptor * pcm_channel,
1408 int period_size)
1409 {
1410 u32 temp = snd_cs46xx_peek (chip,pcm_channel->pcm_reader_scb->address << 2);
1411 temp &= ~DMA_RQ_C1_SOURCE_SIZE_MASK;
1412
1413 switch (period_size) {
1414 case 2048:
1415 temp |= DMA_RQ_C1_SOURCE_MOD1024;
1416 break;
1417 case 1024:
1418 temp |= DMA_RQ_C1_SOURCE_MOD512;
1419 break;
1420 case 512:
1421 temp |= DMA_RQ_C1_SOURCE_MOD256;
1422 break;
1423 case 256:
1424 temp |= DMA_RQ_C1_SOURCE_MOD128;
1425 break;
1426 case 128:
1427 temp |= DMA_RQ_C1_SOURCE_MOD64;
1428 break;
1429 case 64:
1430 temp |= DMA_RQ_C1_SOURCE_MOD32;
1431 break;
1432 case 32:
1433 temp |= DMA_RQ_C1_SOURCE_MOD16;
1434 break;
1435 default:
1436 dev_dbg(chip->card->dev,
1437 "period size (%d) not supported by HW\n", period_size);
1438 return -EINVAL;
1439 }
1440
1441 snd_cs46xx_poke (chip,pcm_channel->pcm_reader_scb->address << 2,temp);
1442
1443 return 0;
1444 }
1445
cs46xx_dsp_pcm_ostream_set_period(struct snd_cs46xx * chip,int period_size)1446 int cs46xx_dsp_pcm_ostream_set_period (struct snd_cs46xx * chip,
1447 int period_size)
1448 {
1449 u32 temp = snd_cs46xx_peek (chip,WRITEBACK_SCB_ADDR << 2);
1450 temp &= ~DMA_RQ_C1_DEST_SIZE_MASK;
1451
1452 switch (period_size) {
1453 case 2048:
1454 temp |= DMA_RQ_C1_DEST_MOD1024;
1455 break;
1456 case 1024:
1457 temp |= DMA_RQ_C1_DEST_MOD512;
1458 break;
1459 case 512:
1460 temp |= DMA_RQ_C1_DEST_MOD256;
1461 break;
1462 case 256:
1463 temp |= DMA_RQ_C1_DEST_MOD128;
1464 break;
1465 case 128:
1466 temp |= DMA_RQ_C1_DEST_MOD64;
1467 break;
1468 case 64:
1469 temp |= DMA_RQ_C1_DEST_MOD32;
1470 break;
1471 case 32:
1472 temp |= DMA_RQ_C1_DEST_MOD16;
1473 break;
1474 default:
1475 dev_dbg(chip->card->dev,
1476 "period size (%d) not supported by HW\n", period_size);
1477 return -EINVAL;
1478 }
1479
1480 snd_cs46xx_poke (chip,WRITEBACK_SCB_ADDR << 2,temp);
1481
1482 return 0;
1483 }
1484
cs46xx_dsp_destroy_pcm_channel(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel)1485 void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
1486 struct dsp_pcm_channel_descriptor * pcm_channel)
1487 {
1488 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1489 unsigned long flags;
1490
1491 if (snd_BUG_ON(!pcm_channel->active ||
1492 ins->npcm_channels <= 0 ||
1493 pcm_channel->src_scb->ref_count <= 0))
1494 return;
1495
1496 spin_lock_irqsave(&chip->reg_lock, flags);
1497 pcm_channel->unlinked = 1;
1498 pcm_channel->active = 0;
1499 pcm_channel->private_data = NULL;
1500 pcm_channel->src_scb->ref_count --;
1501 ins->npcm_channels --;
1502 spin_unlock_irqrestore(&chip->reg_lock, flags);
1503
1504 cs46xx_dsp_remove_scb(chip,pcm_channel->pcm_reader_scb);
1505
1506 if (!pcm_channel->src_scb->ref_count) {
1507 cs46xx_dsp_remove_scb(chip,pcm_channel->src_scb);
1508
1509 if (snd_BUG_ON(pcm_channel->src_slot < 0 ||
1510 pcm_channel->src_slot >= DSP_MAX_SRC_NR))
1511 return;
1512
1513 ins->src_scb_slots[pcm_channel->src_slot] = 0;
1514 ins->nsrc_scb --;
1515 }
1516 }
1517
cs46xx_dsp_pcm_unlink(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel)1518 int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip,
1519 struct dsp_pcm_channel_descriptor * pcm_channel)
1520 {
1521 unsigned long flags;
1522
1523 if (snd_BUG_ON(!pcm_channel->active ||
1524 chip->dsp_spos_instance->npcm_channels <= 0))
1525 return -EIO;
1526
1527 spin_lock_irqsave(&chip->reg_lock, flags);
1528 if (pcm_channel->unlinked) {
1529 spin_unlock_irqrestore(&chip->reg_lock, flags);
1530 return -EIO;
1531 }
1532
1533 pcm_channel->unlinked = 1;
1534
1535 _dsp_unlink_scb (chip,pcm_channel->pcm_reader_scb);
1536 spin_unlock_irqrestore(&chip->reg_lock, flags);
1537
1538 return 0;
1539 }
1540
cs46xx_dsp_pcm_link(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel)1541 int cs46xx_dsp_pcm_link (struct snd_cs46xx * chip,
1542 struct dsp_pcm_channel_descriptor * pcm_channel)
1543 {
1544 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1545 struct dsp_scb_descriptor * parent_scb;
1546 struct dsp_scb_descriptor * src_scb = pcm_channel->src_scb;
1547 unsigned long flags;
1548
1549 spin_lock_irqsave(&chip->reg_lock, flags);
1550
1551 if (pcm_channel->unlinked == 0) {
1552 spin_unlock_irqrestore(&chip->reg_lock, flags);
1553 return -EIO;
1554 }
1555
1556 parent_scb = src_scb;
1557
1558 if (src_scb->sub_list_ptr != ins->the_null_scb) {
1559 src_scb->sub_list_ptr->parent_scb_ptr = pcm_channel->pcm_reader_scb;
1560 pcm_channel->pcm_reader_scb->next_scb_ptr = src_scb->sub_list_ptr;
1561 }
1562
1563 src_scb->sub_list_ptr = pcm_channel->pcm_reader_scb;
1564
1565 snd_BUG_ON(pcm_channel->pcm_reader_scb->parent_scb_ptr);
1566 pcm_channel->pcm_reader_scb->parent_scb_ptr = parent_scb;
1567
1568 /* update SCB entry in DSP RAM */
1569 cs46xx_dsp_spos_update_scb(chip,pcm_channel->pcm_reader_scb);
1570
1571 /* update parent SCB entry */
1572 cs46xx_dsp_spos_update_scb(chip,parent_scb);
1573
1574 pcm_channel->unlinked = 0;
1575 spin_unlock_irqrestore(&chip->reg_lock, flags);
1576 return 0;
1577 }
1578
1579 struct dsp_scb_descriptor *
cs46xx_add_record_source(struct snd_cs46xx * chip,struct dsp_scb_descriptor * source,u16 addr,char * scb_name)1580 cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * source,
1581 u16 addr, char * scb_name)
1582 {
1583 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1584 struct dsp_scb_descriptor * parent;
1585 struct dsp_scb_descriptor * pcm_input;
1586 int insert_point;
1587
1588 if (snd_BUG_ON(!ins->record_mixer_scb))
1589 return NULL;
1590
1591 if (ins->record_mixer_scb->sub_list_ptr != ins->the_null_scb) {
1592 parent = find_next_free_scb (chip,ins->record_mixer_scb->sub_list_ptr);
1593 insert_point = SCB_ON_PARENT_NEXT_SCB;
1594 } else {
1595 parent = ins->record_mixer_scb;
1596 insert_point = SCB_ON_PARENT_SUBLIST_SCB;
1597 }
1598
1599 pcm_input = cs46xx_dsp_create_pcm_serial_input_scb(chip,scb_name,addr,
1600 source, parent,
1601 insert_point);
1602
1603 return pcm_input;
1604 }
1605
cs46xx_src_unlink(struct snd_cs46xx * chip,struct dsp_scb_descriptor * src)1606 int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
1607 {
1608 unsigned long flags;
1609
1610 if (snd_BUG_ON(!src->parent_scb_ptr))
1611 return -EINVAL;
1612
1613 /* mute SCB */
1614 cs46xx_dsp_scb_set_volume (chip,src,0,0);
1615
1616 spin_lock_irqsave(&chip->reg_lock, flags);
1617 _dsp_unlink_scb (chip,src);
1618 spin_unlock_irqrestore(&chip->reg_lock, flags);
1619
1620 return 0;
1621 }
1622
cs46xx_src_link(struct snd_cs46xx * chip,struct dsp_scb_descriptor * src)1623 int cs46xx_src_link(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
1624 {
1625 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1626 struct dsp_scb_descriptor * parent_scb;
1627
1628 if (snd_BUG_ON(src->parent_scb_ptr))
1629 return -EINVAL;
1630 if (snd_BUG_ON(!ins->master_mix_scb))
1631 return -EINVAL;
1632
1633 if (ins->master_mix_scb->sub_list_ptr != ins->the_null_scb) {
1634 parent_scb = find_next_free_scb (chip,ins->master_mix_scb->sub_list_ptr);
1635 parent_scb->next_scb_ptr = src;
1636 } else {
1637 parent_scb = ins->master_mix_scb;
1638 parent_scb->sub_list_ptr = src;
1639 }
1640
1641 src->parent_scb_ptr = parent_scb;
1642
1643 /* update entry in DSP RAM */
1644 cs46xx_dsp_spos_update_scb(chip,parent_scb);
1645
1646 return 0;
1647 }
1648
cs46xx_dsp_enable_spdif_out(struct snd_cs46xx * chip)1649 int cs46xx_dsp_enable_spdif_out (struct snd_cs46xx *chip)
1650 {
1651 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1652
1653 if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
1654 cs46xx_dsp_enable_spdif_hw (chip);
1655 }
1656
1657 /* dont touch anything if SPDIF is open */
1658 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
1659 /* when cs46xx_iec958_post_close(...) is called it
1660 will call this function if necessary depending on
1661 this bit */
1662 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1663
1664 return -EBUSY;
1665 }
1666
1667 if (snd_BUG_ON(ins->asynch_tx_scb))
1668 return -EINVAL;
1669 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr !=
1670 ins->the_null_scb))
1671 return -EINVAL;
1672
1673 /* reset output snooper sample buffer pointer */
1674 snd_cs46xx_poke (chip, (ins->ref_snoop_scb->address + 2) << 2,
1675 (OUTPUT_SNOOP_BUFFER + 0x10) << 0x10 );
1676
1677 /* The asynch. transfer task */
1678 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
1679 SPDIFO_SCB_INST,
1680 SPDIFO_IP_OUTPUT_BUFFER1,
1681 ins->master_mix_scb,
1682 SCB_ON_PARENT_NEXT_SCB);
1683 if (!ins->asynch_tx_scb) return -ENOMEM;
1684
1685 ins->spdif_pcm_input_scb = cs46xx_dsp_create_pcm_serial_input_scb(chip,"PCMSerialInput_II",
1686 PCMSERIALINII_SCB_ADDR,
1687 ins->ref_snoop_scb,
1688 ins->asynch_tx_scb,
1689 SCB_ON_PARENT_SUBLIST_SCB);
1690
1691
1692 if (!ins->spdif_pcm_input_scb) return -ENOMEM;
1693
1694 /* monitor state */
1695 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1696
1697 return 0;
1698 }
1699
cs46xx_dsp_disable_spdif_out(struct snd_cs46xx * chip)1700 int cs46xx_dsp_disable_spdif_out (struct snd_cs46xx *chip)
1701 {
1702 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1703
1704 /* dont touch anything if SPDIF is open */
1705 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
1706 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1707 return -EBUSY;
1708 }
1709
1710 /* check integrety */
1711 if (snd_BUG_ON(!ins->asynch_tx_scb))
1712 return -EINVAL;
1713 if (snd_BUG_ON(!ins->spdif_pcm_input_scb))
1714 return -EINVAL;
1715 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != ins->asynch_tx_scb))
1716 return -EINVAL;
1717 if (snd_BUG_ON(ins->asynch_tx_scb->parent_scb_ptr !=
1718 ins->master_mix_scb))
1719 return -EINVAL;
1720
1721 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
1722 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
1723
1724 ins->spdif_pcm_input_scb = NULL;
1725 ins->asynch_tx_scb = NULL;
1726
1727 /* clear buffer to prevent any undesired noise */
1728 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
1729
1730 /* monitor state */
1731 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1732
1733
1734 return 0;
1735 }
1736
cs46xx_iec958_pre_open(struct snd_cs46xx * chip)1737 int cs46xx_iec958_pre_open (struct snd_cs46xx *chip)
1738 {
1739 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1740
1741 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
1742 /* remove AsynchFGTxSCB and and PCMSerialInput_II */
1743 cs46xx_dsp_disable_spdif_out (chip);
1744
1745 /* save state */
1746 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1747 }
1748
1749 /* if not enabled already */
1750 if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
1751 cs46xx_dsp_enable_spdif_hw (chip);
1752 }
1753
1754 /* Create the asynch. transfer task for playback */
1755 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
1756 SPDIFO_SCB_INST,
1757 SPDIFO_IP_OUTPUT_BUFFER1,
1758 ins->master_mix_scb,
1759 SCB_ON_PARENT_NEXT_SCB);
1760
1761
1762 /* set spdif channel status value for streaming */
1763 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_stream);
1764
1765 ins->spdif_status_out |= DSP_SPDIF_STATUS_PLAYBACK_OPEN;
1766
1767 return 0;
1768 }
1769
cs46xx_iec958_post_close(struct snd_cs46xx * chip)1770 int cs46xx_iec958_post_close (struct snd_cs46xx *chip)
1771 {
1772 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1773
1774 if (snd_BUG_ON(!ins->asynch_tx_scb))
1775 return -EINVAL;
1776
1777 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_PLAYBACK_OPEN;
1778
1779 /* restore settings */
1780 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);
1781
1782 /* deallocate stuff */
1783 if (ins->spdif_pcm_input_scb != NULL) {
1784 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
1785 ins->spdif_pcm_input_scb = NULL;
1786 }
1787
1788 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
1789 ins->asynch_tx_scb = NULL;
1790
1791 /* clear buffer to prevent any undesired noise */
1792 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
1793
1794 /* restore state */
1795 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
1796 cs46xx_dsp_enable_spdif_out (chip);
1797 }
1798
1799 return 0;
1800 }
1801
