1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 */
4
5 /*
6 * 2002-07 Benny Sjostrand benny@hostmobility.com
7 */
8
9
10 #include <linux/io.h>
11 #include <linux/delay.h>
12 #include <linux/pm.h>
13 #include <linux/init.h>
14 #include <linux/slab.h>
15 #include <linux/mutex.h>
16
17 #include <sound/core.h>
18 #include <sound/control.h>
19 #include <sound/info.h>
20 #include "cs46xx.h"
21
22 #include "cs46xx_lib.h"
23 #include "dsp_spos.h"
24
25 struct proc_scb_info {
26 struct dsp_scb_descriptor * scb_desc;
27 struct snd_cs46xx *chip;
28 };
29
remove_symbol(struct snd_cs46xx * chip,struct dsp_symbol_entry * symbol)30 static void remove_symbol (struct snd_cs46xx * chip, struct dsp_symbol_entry * symbol)
31 {
32 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
33 int symbol_index = (int)(symbol - ins->symbol_table.symbols);
34
35 if (snd_BUG_ON(ins->symbol_table.nsymbols <= 0))
36 return;
37 if (snd_BUG_ON(symbol_index < 0 ||
38 symbol_index >= ins->symbol_table.nsymbols))
39 return;
40
41 ins->symbol_table.symbols[symbol_index].deleted = 1;
42
43 if (symbol_index < ins->symbol_table.highest_frag_index) {
44 ins->symbol_table.highest_frag_index = symbol_index;
45 }
46
47 if (symbol_index == ins->symbol_table.nsymbols - 1)
48 ins->symbol_table.nsymbols --;
49
50 if (ins->symbol_table.highest_frag_index > ins->symbol_table.nsymbols) {
51 ins->symbol_table.highest_frag_index = ins->symbol_table.nsymbols;
52 }
53
54 }
55
56 #ifdef CONFIG_SND_PROC_FS
cs46xx_dsp_proc_scb_info_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)57 static void cs46xx_dsp_proc_scb_info_read (struct snd_info_entry *entry,
58 struct snd_info_buffer *buffer)
59 {
60 struct proc_scb_info * scb_info = entry->private_data;
61 struct dsp_scb_descriptor * scb = scb_info->scb_desc;
62 struct snd_cs46xx *chip = scb_info->chip;
63 int j,col;
64 void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
65
66 mutex_lock(&chip->spos_mutex);
67 snd_iprintf(buffer,"%04x %s:\n",scb->address,scb->scb_name);
68
69 for (col = 0,j = 0;j < 0x10; j++,col++) {
70 if (col == 4) {
71 snd_iprintf(buffer,"\n");
72 col = 0;
73 }
74 snd_iprintf(buffer,"%08x ",readl(dst + (scb->address + j) * sizeof(u32)));
75 }
76
77 snd_iprintf(buffer,"\n");
78
79 if (scb->parent_scb_ptr != NULL) {
80 snd_iprintf(buffer,"parent [%s:%04x] ",
81 scb->parent_scb_ptr->scb_name,
82 scb->parent_scb_ptr->address);
83 } else snd_iprintf(buffer,"parent [none] ");
84
85 snd_iprintf(buffer,"sub_list_ptr [%s:%04x]\nnext_scb_ptr [%s:%04x] task_entry [%s:%04x]\n",
86 scb->sub_list_ptr->scb_name,
87 scb->sub_list_ptr->address,
88 scb->next_scb_ptr->scb_name,
89 scb->next_scb_ptr->address,
90 scb->task_entry->symbol_name,
91 scb->task_entry->address);
92
93 snd_iprintf(buffer,"index [%d] ref_count [%d]\n",scb->index,scb->ref_count);
94 mutex_unlock(&chip->spos_mutex);
95 }
96 #endif
97
_dsp_unlink_scb(struct snd_cs46xx * chip,struct dsp_scb_descriptor * scb)98 static void _dsp_unlink_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
99 {
100 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
101
102 if ( scb->parent_scb_ptr ) {
103 /* unlink parent SCB */
104 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != scb &&
105 scb->parent_scb_ptr->next_scb_ptr != scb))
106 return;
107
108 if (scb->parent_scb_ptr->sub_list_ptr == scb) {
109
110 if (scb->next_scb_ptr == ins->the_null_scb) {
111 /* last and only node in parent sublist */
112 scb->parent_scb_ptr->sub_list_ptr = scb->sub_list_ptr;
113
114 if (scb->sub_list_ptr != ins->the_null_scb) {
115 scb->sub_list_ptr->parent_scb_ptr = scb->parent_scb_ptr;
116 }
117 scb->sub_list_ptr = ins->the_null_scb;
118 } else {
119 /* first node in parent sublist */
120 scb->parent_scb_ptr->sub_list_ptr = scb->next_scb_ptr;
121
122 if (scb->next_scb_ptr != ins->the_null_scb) {
123 /* update next node parent ptr. */
124 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
125 }
126 scb->next_scb_ptr = ins->the_null_scb;
127 }
128 } else {
129 scb->parent_scb_ptr->next_scb_ptr = scb->next_scb_ptr;
130
131 if (scb->next_scb_ptr != ins->the_null_scb) {
132 /* update next node parent ptr. */
133 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
134 }
135 scb->next_scb_ptr = ins->the_null_scb;
136 }
137
138 /* update parent first entry in DSP RAM */
139 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
140
141 /* then update entry in DSP RAM */
142 cs46xx_dsp_spos_update_scb(chip,scb);
143
144 scb->parent_scb_ptr = NULL;
145 }
146 }
147
_dsp_clear_sample_buffer(struct snd_cs46xx * chip,u32 sample_buffer_addr,int dword_count)148 static void _dsp_clear_sample_buffer (struct snd_cs46xx *chip, u32 sample_buffer_addr,
149 int dword_count)
150 {
151 void __iomem *dst = chip->region.idx[2].remap_addr + sample_buffer_addr;
152 int i;
153
154 for (i = 0; i < dword_count ; ++i ) {
155 writel(0, dst);
156 dst += 4;
157 }
158 }
159
cs46xx_dsp_remove_scb(struct snd_cs46xx * chip,struct dsp_scb_descriptor * scb)160 void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
161 {
162 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
163 unsigned long flags;
164
165 /* check integrety */
166 if (snd_BUG_ON(scb->index < 0 ||
167 scb->index >= ins->nscb ||
168 (ins->scbs + scb->index) != scb))
169 return;
170
171 #if 0
172 /* can't remove a SCB with childs before
173 removing childs first */
174 if (snd_BUG_ON(scb->sub_list_ptr != ins->the_null_scb ||
175 scb->next_scb_ptr != ins->the_null_scb))
176 goto _end;
177 #endif
178
179 spin_lock_irqsave(&chip->reg_lock, flags);
180 _dsp_unlink_scb (chip,scb);
181 spin_unlock_irqrestore(&chip->reg_lock, flags);
182
183 cs46xx_dsp_proc_free_scb_desc(scb);
184 if (snd_BUG_ON(!scb->scb_symbol))
185 return;
186 remove_symbol (chip,scb->scb_symbol);
187
188 ins->scbs[scb->index].deleted = 1;
189 #ifdef CONFIG_PM_SLEEP
190 kfree(ins->scbs[scb->index].data);
191 ins->scbs[scb->index].data = NULL;
192 #endif
193
194 if (scb->index < ins->scb_highest_frag_index)
195 ins->scb_highest_frag_index = scb->index;
196
197 if (scb->index == ins->nscb - 1) {
198 ins->nscb --;
199 }
200
201 if (ins->scb_highest_frag_index > ins->nscb) {
202 ins->scb_highest_frag_index = ins->nscb;
203 }
204
205 #if 0
206 /* !!!! THIS IS A PIECE OF SHIT MADE BY ME !!! */
207 for(i = scb->index + 1;i < ins->nscb; ++i) {
208 ins->scbs[i - 1].index = i - 1;
209 }
210 #endif
211 }
212
213
214 #ifdef CONFIG_SND_PROC_FS
cs46xx_dsp_proc_free_scb_desc(struct dsp_scb_descriptor * scb)215 void cs46xx_dsp_proc_free_scb_desc (struct dsp_scb_descriptor * scb)
216 {
217 if (scb->proc_info) {
218 struct proc_scb_info * scb_info = scb->proc_info->private_data;
219 struct snd_cs46xx *chip = scb_info->chip;
220
221 dev_dbg(chip->card->dev,
222 "cs46xx_dsp_proc_free_scb_desc: freeing %s\n",
223 scb->scb_name);
224
225 snd_info_free_entry(scb->proc_info);
226 scb->proc_info = NULL;
227
228 kfree (scb_info);
229 }
230 }
231
cs46xx_dsp_proc_register_scb_desc(struct snd_cs46xx * chip,struct dsp_scb_descriptor * scb)232 void cs46xx_dsp_proc_register_scb_desc (struct snd_cs46xx *chip,
233 struct dsp_scb_descriptor * scb)
234 {
235 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
236 struct snd_info_entry * entry;
237 struct proc_scb_info * scb_info;
238
239 /* register to proc */
240 if (ins->snd_card != NULL && ins->proc_dsp_dir != NULL &&
241 scb->proc_info == NULL) {
242
243 entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
244 ins->proc_dsp_dir);
245 if (entry) {
246 scb_info = kmalloc(sizeof(struct proc_scb_info), GFP_KERNEL);
247 if (!scb_info) {
248 snd_info_free_entry(entry);
249 entry = NULL;
250 goto out;
251 }
252
253 scb_info->chip = chip;
254 scb_info->scb_desc = scb;
255 snd_info_set_text_ops(entry, scb_info,
256 cs46xx_dsp_proc_scb_info_read);
257 }
258 out:
259 scb->proc_info = entry;
260 }
261 }
262 #endif /* CONFIG_SND_PROC_FS */
263
264 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)265 _dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u32 dest,
266 struct dsp_symbol_entry * task_entry,
267 struct dsp_scb_descriptor * parent_scb,
268 int scb_child_type)
269 {
270 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
271 struct dsp_scb_descriptor * scb;
272
273 unsigned long flags;
274
275 if (snd_BUG_ON(!ins->the_null_scb))
276 return NULL;
277
278 /* fill the data that will be wroten to DSP */
279 scb_data[SCBsubListPtr] =
280 (ins->the_null_scb->address << 0x10) | ins->the_null_scb->address;
281
282 scb_data[SCBfuncEntryPtr] &= 0xFFFF0000;
283 scb_data[SCBfuncEntryPtr] |= task_entry->address;
284
285 dev_dbg(chip->card->dev, "dsp_spos: creating SCB <%s>\n", name);
286
287 scb = cs46xx_dsp_create_scb(chip,name,scb_data,dest);
288
289
290 scb->sub_list_ptr = ins->the_null_scb;
291 scb->next_scb_ptr = ins->the_null_scb;
292
293 scb->parent_scb_ptr = parent_scb;
294 scb->task_entry = task_entry;
295
296
297 /* update parent SCB */
298 if (scb->parent_scb_ptr) {
299 #if 0
300 dev_dbg(chip->card->dev,
301 "scb->parent_scb_ptr = %s\n",
302 scb->parent_scb_ptr->scb_name);
303 dev_dbg(chip->card->dev,
304 "scb->parent_scb_ptr->next_scb_ptr = %s\n",
305 scb->parent_scb_ptr->next_scb_ptr->scb_name);
306 dev_dbg(chip->card->dev,
307 "scb->parent_scb_ptr->sub_list_ptr = %s\n",
308 scb->parent_scb_ptr->sub_list_ptr->scb_name);
309 #endif
310 /* link to parent SCB */
311 if (scb_child_type == SCB_ON_PARENT_NEXT_SCB) {
312 if (snd_BUG_ON(scb->parent_scb_ptr->next_scb_ptr !=
313 ins->the_null_scb))
314 return NULL;
315
316 scb->parent_scb_ptr->next_scb_ptr = scb;
317
318 } else if (scb_child_type == SCB_ON_PARENT_SUBLIST_SCB) {
319 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr !=
320 ins->the_null_scb))
321 return NULL;
322
323 scb->parent_scb_ptr->sub_list_ptr = scb;
324 } else {
325 snd_BUG();
326 }
327
328 spin_lock_irqsave(&chip->reg_lock, flags);
329
330 /* update entry in DSP RAM */
331 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
332
333 spin_unlock_irqrestore(&chip->reg_lock, flags);
334 }
335
336
337 cs46xx_dsp_proc_register_scb_desc (chip,scb);
338
339 return scb;
340 }
341
342 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)343 cs46xx_dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data,
344 u32 dest, char * task_entry_name,
345 struct dsp_scb_descriptor * parent_scb,
346 int scb_child_type)
347 {
348 struct dsp_symbol_entry * task_entry;
349
350 task_entry = cs46xx_dsp_lookup_symbol (chip,task_entry_name,
351 SYMBOL_CODE);
352
353 if (task_entry == NULL) {
354 dev_err(chip->card->dev,
355 "dsp_spos: symbol %s not found\n", task_entry_name);
356 return NULL;
357 }
358
359 return _dsp_create_generic_scb (chip,name,scb_data,dest,task_entry,
360 parent_scb,scb_child_type);
361 }
362
363 struct dsp_scb_descriptor *
cs46xx_dsp_create_timing_master_scb(struct snd_cs46xx * chip)364 cs46xx_dsp_create_timing_master_scb (struct snd_cs46xx *chip)
365 {
366 struct dsp_scb_descriptor * scb;
367
368 struct dsp_timing_master_scb timing_master_scb = {
369 { 0,
370 0,
371 0,
372 0
373 },
374 { 0,
375 0,
376 0,
377 0,
378 0
379 },
380 0,0,
381 0,NULL_SCB_ADDR,
382 0,0, /* extraSampleAccum:TMreserved */
383 0,0, /* codecFIFOptr:codecFIFOsyncd */
384 0x0001,0x8000, /* fracSampAccumQm1:TMfrmsLeftInGroup */
385 0x0001,0x0000, /* fracSampCorrectionQm1:TMfrmGroupLength */
386 0x00060000 /* nSampPerFrmQ15 */
387 };
388
389 scb = cs46xx_dsp_create_generic_scb(chip,"TimingMasterSCBInst",(u32 *)&timing_master_scb,
390 TIMINGMASTER_SCB_ADDR,
391 "TIMINGMASTER",NULL,SCB_NO_PARENT);
392
393 return scb;
394 }
395
396
397 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)398 cs46xx_dsp_create_codec_out_scb(struct snd_cs46xx * chip, char * codec_name,
399 u16 channel_disp, u16 fifo_addr, u16 child_scb_addr,
400 u32 dest, struct dsp_scb_descriptor * parent_scb,
401 int scb_child_type)
402 {
403 struct dsp_scb_descriptor * scb;
404
405 struct dsp_codec_output_scb codec_out_scb = {
406 { 0,
407 0,
408 0,
409 0
410 },
411 {
412 0,
413 0,
414 0,
415 0,
416 0
417 },
418 0,0,
419 0,NULL_SCB_ADDR,
420 0, /* COstrmRsConfig */
421 0, /* COstrmBufPtr */
422 channel_disp,fifo_addr, /* leftChanBaseIOaddr:rightChanIOdisp */
423 0x0000,0x0080, /* (!AC97!) COexpVolChangeRate:COscaleShiftCount */
424 0,child_scb_addr /* COreserved - need child scb to work with rom code */
425 };
426
427
428 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_out_scb,
429 dest,"S16_CODECOUTPUTTASK",parent_scb,
430 scb_child_type);
431
432 return scb;
433 }
434
435 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)436 cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip, char * codec_name,
437 u16 channel_disp, u16 fifo_addr, u16 sample_buffer_addr,
438 u32 dest, struct dsp_scb_descriptor * parent_scb,
439 int scb_child_type)
440 {
441
442 struct dsp_scb_descriptor * scb;
443 struct dsp_codec_input_scb codec_input_scb = {
444 { 0,
445 0,
446 0,
447 0
448 },
449 {
450 0,
451 0,
452 0,
453 0,
454 0
455 },
456
457 #if 0 /* cs4620 */
458 SyncIOSCB,NULL_SCB_ADDR
459 #else
460 0 , 0,
461 #endif
462 0,0,
463
464 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64, /* strmRsConfig */
465 sample_buffer_addr << 0x10, /* strmBufPtr; defined as a dword ptr, used as a byte ptr */
466 channel_disp,fifo_addr, /* (!AC97!) leftChanBaseINaddr=AC97primary
467 link input slot 3 :rightChanINdisp=""slot 4 */
468 0x0000,0x0000, /* (!AC97!) ????:scaleShiftCount; no shift needed
469 because AC97 is already 20 bits */
470 0x80008000 /* ??clw cwcgame.scb has 0 */
471 };
472
473 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_input_scb,
474 dest,"S16_CODECINPUTTASK",parent_scb,
475 scb_child_type);
476 return scb;
477 }
478
479
480 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)481 cs46xx_dsp_create_pcm_reader_scb(struct snd_cs46xx * chip, char * scb_name,
482 u16 sample_buffer_addr, u32 dest,
483 int virtual_channel, u32 playback_hw_addr,
484 struct dsp_scb_descriptor * parent_scb,
485 int scb_child_type)
486 {
487 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
488 struct dsp_scb_descriptor * scb;
489
490 struct dsp_generic_scb pcm_reader_scb = {
491
492 /*
493 Play DMA Task xfers data from host buffer to SP buffer
494 init/runtime variables:
495 PlayAC: Play Audio Data Conversion - SCB loc: 2nd dword, mask: 0x0000F000L
496 DATA_FMT_16BIT_ST_LTLEND(0x00000000L) from 16-bit stereo, little-endian
497 DATA_FMT_8_BIT_ST_SIGNED(0x00001000L) from 8-bit stereo, signed
498 DATA_FMT_16BIT_MN_LTLEND(0x00002000L) from 16-bit mono, little-endian
499 DATA_FMT_8_BIT_MN_SIGNED(0x00003000L) from 8-bit mono, signed
500 DATA_FMT_16BIT_ST_BIGEND(0x00004000L) from 16-bit stereo, big-endian
501 DATA_FMT_16BIT_MN_BIGEND(0x00006000L) from 16-bit mono, big-endian
502 DATA_FMT_8_BIT_ST_UNSIGNED(0x00009000L) from 8-bit stereo, unsigned
503 DATA_FMT_8_BIT_MN_UNSIGNED(0x0000b000L) from 8-bit mono, unsigned
504 ? Other combinations possible from:
505 DMA_RQ_C2_AUDIO_CONVERT_MASK 0x0000F000L
506 DMA_RQ_C2_AC_NONE 0x00000000L
507 DMA_RQ_C2_AC_8_TO_16_BIT 0x00001000L
508 DMA_RQ_C2_AC_MONO_TO_STEREO 0x00002000L
509 DMA_RQ_C2_AC_ENDIAN_CONVERT 0x00004000L
510 DMA_RQ_C2_AC_SIGNED_CONVERT 0x00008000L
511
512 HostBuffAddr: Host Buffer Physical Byte Address - SCB loc:3rd dword, Mask: 0xFFFFFFFFL
513 aligned to dword boundary
514 */
515 /* Basic (non scatter/gather) DMA requestor (4 ints) */
516 { DMA_RQ_C1_SOURCE_ON_HOST + /* source buffer is on the host */
517 DMA_RQ_C1_SOURCE_MOD1024 + /* source buffer is 1024 dwords (4096 bytes) */
518 DMA_RQ_C1_DEST_MOD32 + /* dest buffer(PCMreaderBuf) is 32 dwords*/
519 DMA_RQ_C1_WRITEBACK_SRC_FLAG + /* ?? */
520 DMA_RQ_C1_WRITEBACK_DEST_FLAG + /* ?? */
521 15, /* DwordCount-1: picked 16 for DwordCount because Jim */
522 /* Barnette said that is what we should use since */
523 /* we are not running in optimized mode? */
524 DMA_RQ_C2_AC_NONE +
525 DMA_RQ_C2_SIGNAL_SOURCE_PINGPONG + /* set play interrupt (bit0) in HISR when source */
526 /* buffer (on host) crosses half-way point */
527 virtual_channel, /* Play DMA channel arbitrarily set to 0 */
528 playback_hw_addr, /* HostBuffAddr (source) */
529 DMA_RQ_SD_SP_SAMPLE_ADDR + /* destination buffer is in SP Sample Memory */
530 sample_buffer_addr /* SP Buffer Address (destination) */
531 },
532 /* Scatter/gather DMA requestor extension (5 ints) */
533 {
534 0,
535 0,
536 0,
537 0,
538 0
539 },
540 /* Sublist pointer & next stream control block (SCB) link. */
541 NULL_SCB_ADDR,NULL_SCB_ADDR,
542 /* Pointer to this tasks parameter block & stream function pointer */
543 0,NULL_SCB_ADDR,
544 /* rsConfig register for stream buffer (rsDMA reg. is loaded from basicReq.daw */
545 /* for incoming streams, or basicReq.saw, for outgoing streams) */
546 RSCONFIG_DMA_ENABLE + /* enable DMA */
547 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) + /* MAX_DMA_SIZE picked to be 19 since SPUD */
548 /* uses it for some reason */
549 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) + /* stream number = SCBaddr/16 */
550 RSCONFIG_SAMPLE_16STEREO +
551 RSCONFIG_MODULO_32, /* dest buffer(PCMreaderBuf) is 32 dwords (256 bytes) */
552 /* Stream sample pointer & MAC-unit mode for this stream */
553 (sample_buffer_addr << 0x10),
554 /* Fractional increment per output sample in the input sample buffer */
555 0,
556 {
557 /* Standard stereo volume control
558 default muted */
559 0xffff,0xffff,
560 0xffff,0xffff
561 }
562 };
563
564 if (ins->null_algorithm == NULL) {
565 ins->null_algorithm = cs46xx_dsp_lookup_symbol (chip,"NULLALGORITHM",
566 SYMBOL_CODE);
567
568 if (ins->null_algorithm == NULL) {
569 dev_err(chip->card->dev,
570 "dsp_spos: symbol NULLALGORITHM not found\n");
571 return NULL;
572 }
573 }
574
575 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_reader_scb,
576 dest,ins->null_algorithm,parent_scb,
577 scb_child_type);
578
579 return scb;
580 }
581
582 #define GOF_PER_SEC 200
583
584 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)585 cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip, char * scb_name,
586 int rate,
587 u16 src_buffer_addr,
588 u16 src_delay_buffer_addr, u32 dest,
589 struct dsp_scb_descriptor * parent_scb,
590 int scb_child_type,
591 int pass_through)
592 {
593
594 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
595 struct dsp_scb_descriptor * scb;
596 unsigned int tmp1, tmp2;
597 unsigned int phiIncr;
598 unsigned int correctionPerGOF, correctionPerSec;
599
600 dev_dbg(chip->card->dev, "dsp_spos: setting %s rate to %u\n",
601 scb_name, rate);
602
603 /*
604 * Compute the values used to drive the actual sample rate conversion.
605 * The following formulas are being computed, using inline assembly
606 * since we need to use 64 bit arithmetic to compute the values:
607 *
608 * phiIncr = floor((Fs,in * 2^26) / Fs,out)
609 * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
610 * GOF_PER_SEC)
611 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
612 * GOF_PER_SEC * correctionPerGOF
613 *
614 * i.e.
615 *
616 * phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
617 * correctionPerGOF:correctionPerSec =
618 * dividend:remainder(ulOther / GOF_PER_SEC)
619 */
620 tmp1 = rate << 16;
621 phiIncr = tmp1 / 48000;
622 tmp1 -= phiIncr * 48000;
623 tmp1 <<= 10;
624 phiIncr <<= 10;
625 tmp2 = tmp1 / 48000;
626 phiIncr += tmp2;
627 tmp1 -= tmp2 * 48000;
628 correctionPerGOF = tmp1 / GOF_PER_SEC;
629 tmp1 -= correctionPerGOF * GOF_PER_SEC;
630 correctionPerSec = tmp1;
631
632 {
633 struct dsp_src_task_scb src_task_scb = {
634 0x0028,0x00c8,
635 0x5555,0x0000,
636 0x0000,0x0000,
637 src_buffer_addr,1,
638 correctionPerGOF,correctionPerSec,
639 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
640 0x0000,src_delay_buffer_addr,
641 0x0,
642 0x080,(src_delay_buffer_addr + (24 * 4)),
643 0,0, /* next_scb, sub_list_ptr */
644 0,0, /* entry, this_spb */
645 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
646 src_buffer_addr << 0x10,
647 phiIncr,
648 {
649 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left,
650 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left
651 }
652 };
653
654 if (ins->s16_up == NULL) {
655 ins->s16_up = cs46xx_dsp_lookup_symbol (chip,"S16_UPSRC",
656 SYMBOL_CODE);
657
658 if (ins->s16_up == NULL) {
659 dev_err(chip->card->dev,
660 "dsp_spos: symbol S16_UPSRC not found\n");
661 return NULL;
662 }
663 }
664
665 /* clear buffers */
666 _dsp_clear_sample_buffer (chip,src_buffer_addr,8);
667 _dsp_clear_sample_buffer (chip,src_delay_buffer_addr,32);
668
669 if (pass_through) {
670 /* wont work with any other rate than
671 the native DSP rate */
672 snd_BUG_ON(rate != 48000);
673
674 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
675 dest,"DMAREADER",parent_scb,
676 scb_child_type);
677 } else {
678 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
679 dest,ins->s16_up,parent_scb,
680 scb_child_type);
681 }
682
683
684 }
685
686 return scb;
687 }
688
689 #if 0 /* not used */
690 struct dsp_scb_descriptor *
691 cs46xx_dsp_create_filter_scb(struct snd_cs46xx * chip, char * scb_name,
692 u16 buffer_addr, u32 dest,
693 struct dsp_scb_descriptor * parent_scb,
694 int scb_child_type) {
695 struct dsp_scb_descriptor * scb;
696
697 struct dsp_filter_scb filter_scb = {
698 .a0_right = 0x41a9,
699 .a0_left = 0x41a9,
700 .a1_right = 0xb8e4,
701 .a1_left = 0xb8e4,
702 .a2_right = 0x3e55,
703 .a2_left = 0x3e55,
704
705 .filter_unused3 = 0x0000,
706 .filter_unused2 = 0x0000,
707
708 .output_buf_ptr = buffer_addr,
709 .init = 0x000,
710
711 .prev_sample_output1 = 0x00000000,
712 .prev_sample_output2 = 0x00000000,
713
714 .prev_sample_input1 = 0x00000000,
715 .prev_sample_input2 = 0x00000000,
716
717 .next_scb_ptr = 0x0000,
718 .sub_list_ptr = 0x0000,
719
720 .entry_point = 0x0000,
721 .spb_ptr = 0x0000,
722
723 .b0_right = 0x0e38,
724 .b0_left = 0x0e38,
725 .b1_right = 0x1c71,
726 .b1_left = 0x1c71,
727 .b2_right = 0x0e38,
728 .b2_left = 0x0e38,
729 };
730
731
732 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&filter_scb,
733 dest,"FILTERTASK",parent_scb,
734 scb_child_type);
735
736 return scb;
737 }
738 #endif /* not used */
739
740 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)741 cs46xx_dsp_create_mix_only_scb(struct snd_cs46xx * chip, char * scb_name,
742 u16 mix_buffer_addr, u32 dest,
743 struct dsp_scb_descriptor * parent_scb,
744 int scb_child_type)
745 {
746 struct dsp_scb_descriptor * scb;
747
748 struct dsp_mix_only_scb master_mix_scb = {
749 /* 0 */ { 0,
750 /* 1 */ 0,
751 /* 2 */ mix_buffer_addr,
752 /* 3 */ 0
753 /* */ },
754 {
755 /* 4 */ 0,
756 /* 5 */ 0,
757 /* 6 */ 0,
758 /* 7 */ 0,
759 /* 8 */ 0x00000080
760 },
761 /* 9 */ 0,0,
762 /* A */ 0,0,
763 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
764 /* C */ (mix_buffer_addr + (16 * 4)) << 0x10,
765 /* D */ 0,
766 {
767 /* E */ 0x8000,0x8000,
768 /* F */ 0x8000,0x8000
769 }
770 };
771
772
773 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&master_mix_scb,
774 dest,"S16_MIX",parent_scb,
775 scb_child_type);
776 return scb;
777 }
778
779
780 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)781 cs46xx_dsp_create_mix_to_ostream_scb(struct snd_cs46xx * chip, char * scb_name,
782 u16 mix_buffer_addr, u16 writeback_spb, u32 dest,
783 struct dsp_scb_descriptor * parent_scb,
784 int scb_child_type)
785 {
786 struct dsp_scb_descriptor * scb;
787
788 struct dsp_mix2_ostream_scb mix2_ostream_scb = {
789 /* Basic (non scatter/gather) DMA requestor (4 ints) */
790 {
791 DMA_RQ_C1_SOURCE_MOD64 +
792 DMA_RQ_C1_DEST_ON_HOST +
793 DMA_RQ_C1_DEST_MOD1024 +
794 DMA_RQ_C1_WRITEBACK_SRC_FLAG +
795 DMA_RQ_C1_WRITEBACK_DEST_FLAG +
796 15,
797
798 DMA_RQ_C2_AC_NONE +
799 DMA_RQ_C2_SIGNAL_DEST_PINGPONG +
800
801 CS46XX_DSP_CAPTURE_CHANNEL,
802 DMA_RQ_SD_SP_SAMPLE_ADDR +
803 mix_buffer_addr,
804 0x0
805 },
806
807 { 0, 0, 0, 0, 0, },
808 0,0,
809 0,writeback_spb,
810
811 RSCONFIG_DMA_ENABLE +
812 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) +
813
814 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) +
815 RSCONFIG_DMA_TO_HOST +
816 RSCONFIG_SAMPLE_16STEREO +
817 RSCONFIG_MODULO_64,
818 (mix_buffer_addr + (32 * 4)) << 0x10,
819 1,0,
820 0x0001,0x0080,
821 0xFFFF,0
822 };
823
824
825 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&mix2_ostream_scb,
826
827 dest,"S16_MIX_TO_OSTREAM",parent_scb,
828 scb_child_type);
829
830 return scb;
831 }
832
833
834 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)835 cs46xx_dsp_create_vari_decimate_scb(struct snd_cs46xx * chip,char * scb_name,
836 u16 vari_buffer_addr0,
837 u16 vari_buffer_addr1,
838 u32 dest,
839 struct dsp_scb_descriptor * parent_scb,
840 int scb_child_type)
841 {
842
843 struct dsp_scb_descriptor * scb;
844
845 struct dsp_vari_decimate_scb vari_decimate_scb = {
846 0x0028,0x00c8,
847 0x5555,0x0000,
848 0x0000,0x0000,
849 vari_buffer_addr0,vari_buffer_addr1,
850
851 0x0028,0x00c8,
852 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256,
853
854 0xFF800000,
855 0,
856 0x0080,vari_buffer_addr1 + (25 * 4),
857
858 0,0,
859 0,0,
860
861 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
862 vari_buffer_addr0 << 0x10,
863 0x04000000,
864 {
865 0x8000,0x8000,
866 0xFFFF,0xFFFF
867 }
868 };
869
870 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&vari_decimate_scb,
871 dest,"VARIDECIMATE",parent_scb,
872 scb_child_type);
873
874 return scb;
875 }
876
877
878 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)879 cs46xx_dsp_create_pcm_serial_input_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
880 struct dsp_scb_descriptor * input_scb,
881 struct dsp_scb_descriptor * parent_scb,
882 int scb_child_type)
883 {
884
885 struct dsp_scb_descriptor * scb;
886
887
888 struct dsp_pcm_serial_input_scb pcm_serial_input_scb = {
889 { 0,
890 0,
891 0,
892 0
893 },
894 {
895 0,
896 0,
897 0,
898 0,
899 0
900 },
901
902 0,0,
903 0,0,
904
905 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_16,
906 0,
907 /* 0xD */ 0,input_scb->address,
908 {
909 /* 0xE */ 0x8000,0x8000,
910 /* 0xF */ 0x8000,0x8000
911 }
912 };
913
914 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_serial_input_scb,
915 dest,"PCMSERIALINPUTTASK",parent_scb,
916 scb_child_type);
917 return scb;
918 }
919
920
921 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)922 cs46xx_dsp_create_asynch_fg_tx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
923 u16 hfg_scb_address,
924 u16 asynch_buffer_address,
925 struct dsp_scb_descriptor * parent_scb,
926 int scb_child_type)
927 {
928
929 struct dsp_scb_descriptor * scb;
930
931 struct dsp_asynch_fg_tx_scb asynch_fg_tx_scb = {
932 0xfc00,0x03ff, /* Prototype sample buffer size of 256 dwords */
933 0x0058,0x0028, /* Min Delta 7 dwords == 28 bytes */
934 /* : Max delta 25 dwords == 100 bytes */
935 0,hfg_scb_address, /* Point to HFG task SCB */
936 0,0, /* Initialize current Delta and Consumer ptr adjustment count */
937 0, /* Initialize accumulated Phi to 0 */
938 0,0x2aab, /* Const 1/3 */
939
940 {
941 0, /* Define the unused elements */
942 0,
943 0
944 },
945
946 0,0,
947 0,dest + AFGTxAccumPhi,
948
949 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256, /* Stereo, 256 dword */
950 (asynch_buffer_address) << 0x10, /* This should be automagically synchronized
951 to the producer pointer */
952
953 /* There is no correct initial value, it will depend upon the detected
954 rate etc */
955 0x18000000, /* Phi increment for approx 32k operation */
956 0x8000,0x8000, /* Volume controls are unused at this time */
957 0x8000,0x8000
958 };
959
960 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_tx_scb,
961 dest,"ASYNCHFGTXCODE",parent_scb,
962 scb_child_type);
963
964 return scb;
965 }
966
967
968 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)969 cs46xx_dsp_create_asynch_fg_rx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
970 u16 hfg_scb_address,
971 u16 asynch_buffer_address,
972 struct dsp_scb_descriptor * parent_scb,
973 int scb_child_type)
974 {
975 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
976 struct dsp_scb_descriptor * scb;
977
978 struct dsp_asynch_fg_rx_scb asynch_fg_rx_scb = {
979 0xfe00,0x01ff, /* Prototype sample buffer size of 128 dwords */
980 0x0064,0x001c, /* Min Delta 7 dwords == 28 bytes */
981 /* : Max delta 25 dwords == 100 bytes */
982 0,hfg_scb_address, /* Point to HFG task SCB */
983 0,0, /* Initialize current Delta and Consumer ptr adjustment count */
984 {
985 0, /* Define the unused elements */
986 0,
987 0,
988 0,
989 0
990 },
991
992 0,0,
993 0,dest,
994
995 RSCONFIG_MODULO_128 |
996 RSCONFIG_SAMPLE_16STEREO, /* Stereo, 128 dword */
997 ( (asynch_buffer_address + (16 * 4)) << 0x10), /* This should be automagically
998 synchrinized to the producer pointer */
999
1000 /* There is no correct initial value, it will depend upon the detected
1001 rate etc */
1002 0x18000000,
1003
1004 /* Set IEC958 input volume */
1005 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
1006 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
1007 };
1008
1009 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_rx_scb,
1010 dest,"ASYNCHFGRXCODE",parent_scb,
1011 scb_child_type);
1012
1013 return scb;
1014 }
1015
1016
1017 #if 0 /* not used */
1018 struct dsp_scb_descriptor *
1019 cs46xx_dsp_create_output_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1020 u16 snoop_buffer_address,
1021 struct dsp_scb_descriptor * snoop_scb,
1022 struct dsp_scb_descriptor * parent_scb,
1023 int scb_child_type)
1024 {
1025
1026 struct dsp_scb_descriptor * scb;
1027
1028 struct dsp_output_snoop_scb output_snoop_scb = {
1029 { 0, /* not used. Zero */
1030 0,
1031 0,
1032 0,
1033 },
1034 {
1035 0, /* not used. Zero */
1036 0,
1037 0,
1038 0,
1039 0
1040 },
1041
1042 0,0,
1043 0,0,
1044
1045 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1046 snoop_buffer_address << 0x10,
1047 0,0,
1048 0,
1049 0,snoop_scb->address
1050 };
1051
1052 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&output_snoop_scb,
1053 dest,"OUTPUTSNOOP",parent_scb,
1054 scb_child_type);
1055 return scb;
1056 }
1057 #endif /* not used */
1058
1059
1060 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)1061 cs46xx_dsp_create_spio_write_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1062 struct dsp_scb_descriptor * parent_scb,
1063 int scb_child_type)
1064 {
1065 struct dsp_scb_descriptor * scb;
1066
1067 struct dsp_spio_write_scb spio_write_scb = {
1068 0,0, /* SPIOWAddress2:SPIOWAddress1; */
1069 0, /* SPIOWData1; */
1070 0, /* SPIOWData2; */
1071 0,0, /* SPIOWAddress4:SPIOWAddress3; */
1072 0, /* SPIOWData3; */
1073 0, /* SPIOWData4; */
1074 0,0, /* SPIOWDataPtr:Unused1; */
1075 { 0,0 }, /* Unused2[2]; */
1076
1077 0,0, /* SPIOWChildPtr:SPIOWSiblingPtr; */
1078 0,0, /* SPIOWThisPtr:SPIOWEntryPoint; */
1079
1080 {
1081 0,
1082 0,
1083 0,
1084 0,
1085 0 /* Unused3[5]; */
1086 }
1087 };
1088
1089 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&spio_write_scb,
1090 dest,"SPIOWRITE",parent_scb,
1091 scb_child_type);
1092
1093 return scb;
1094 }
1095
1096 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)1097 cs46xx_dsp_create_magic_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1098 u16 snoop_buffer_address,
1099 struct dsp_scb_descriptor * snoop_scb,
1100 struct dsp_scb_descriptor * parent_scb,
1101 int scb_child_type)
1102 {
1103 struct dsp_scb_descriptor * scb;
1104
1105 struct dsp_magic_snoop_task magic_snoop_scb = {
1106 /* 0 */ 0, /* i0 */
1107 /* 1 */ 0, /* i1 */
1108 /* 2 */ snoop_buffer_address << 0x10,
1109 /* 3 */ 0,snoop_scb->address,
1110 /* 4 */ 0, /* i3 */
1111 /* 5 */ 0, /* i4 */
1112 /* 6 */ 0, /* i5 */
1113 /* 7 */ 0, /* i6 */
1114 /* 8 */ 0, /* i7 */
1115 /* 9 */ 0,0, /* next_scb, sub_list_ptr */
1116 /* A */ 0,0, /* entry_point, this_ptr */
1117 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1118 /* C */ snoop_buffer_address << 0x10,
1119 /* D */ 0,
1120 /* E */ { 0x8000,0x8000,
1121 /* F */ 0xffff,0xffff
1122 }
1123 };
1124
1125 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&magic_snoop_scb,
1126 dest,"MAGICSNOOPTASK",parent_scb,
1127 scb_child_type);
1128
1129 return scb;
1130 }
1131
1132 static struct dsp_scb_descriptor *
find_next_free_scb(struct snd_cs46xx * chip,struct dsp_scb_descriptor * from)1133 find_next_free_scb (struct snd_cs46xx * chip, struct dsp_scb_descriptor * from)
1134 {
1135 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1136 struct dsp_scb_descriptor * scb = from;
1137
1138 while (scb->next_scb_ptr != ins->the_null_scb) {
1139 if (snd_BUG_ON(!scb->next_scb_ptr))
1140 return NULL;
1141
1142 scb = scb->next_scb_ptr;
1143 }
1144
1145 return scb;
1146 }
1147
1148 static u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = {
1149 0x0600, /* 1 */
1150 0x1500, /* 2 */
1151 0x1580, /* 3 */
1152 0x1600, /* 4 */
1153 0x1680, /* 5 */
1154 0x1700, /* 6 */
1155 0x1780, /* 7 */
1156 0x1800, /* 8 */
1157 0x1880, /* 9 */
1158 0x1900, /* 10 */
1159 0x1980, /* 11 */
1160 0x1A00, /* 12 */
1161 0x1A80, /* 13 */
1162 0x1B00, /* 14 */
1163 0x1B80, /* 15 */
1164 0x1C00, /* 16 */
1165 0x1C80, /* 17 */
1166 0x1D00, /* 18 */
1167 0x1D80, /* 19 */
1168 0x1E00, /* 20 */
1169 0x1E80, /* 21 */
1170 0x1F00, /* 22 */
1171 0x1F80, /* 23 */
1172 0x2000, /* 24 */
1173 0x2080, /* 25 */
1174 0x2100, /* 26 */
1175 0x2180, /* 27 */
1176 0x2200, /* 28 */
1177 0x2280, /* 29 */
1178 0x2300, /* 30 */
1179 0x2380, /* 31 */
1180 0x2400, /* 32 */
1181 };
1182
1183 static u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = {
1184 0x2B80,
1185 0x2BA0,
1186 0x2BC0,
1187 0x2BE0,
1188 0x2D00,
1189 0x2D20,
1190 0x2D40,
1191 0x2D60,
1192 0x2D80,
1193 0x2DA0,
1194 0x2DC0,
1195 0x2DE0,
1196 0x2E00,
1197 0x2E20
1198 };
1199
1200 static u32 src_delay_buffer_addr[DSP_MAX_SRC_NR] = {
1201 0x2480,
1202 0x2500,
1203 0x2580,
1204 0x2600,
1205 0x2680,
1206 0x2700,
1207 0x2780,
1208 0x2800,
1209 0x2880,
1210 0x2900,
1211 0x2980,
1212 0x2A00,
1213 0x2A80,
1214 0x2B00
1215 };
1216
1217 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)1218 cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip,
1219 u32 sample_rate, void * private_data,
1220 u32 hw_dma_addr,
1221 int pcm_channel_id)
1222 {
1223 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1224 struct dsp_scb_descriptor * src_scb = NULL, * pcm_scb, * mixer_scb = NULL;
1225 struct dsp_scb_descriptor * src_parent_scb = NULL;
1226
1227 /* struct dsp_scb_descriptor * pcm_parent_scb; */
1228 char scb_name[DSP_MAX_SCB_NAME];
1229 int i, pcm_index = -1, insert_point, src_index = -1, pass_through = 0;
1230 unsigned long flags;
1231
1232 switch (pcm_channel_id) {
1233 case DSP_PCM_MAIN_CHANNEL:
1234 mixer_scb = ins->master_mix_scb;
1235 break;
1236 case DSP_PCM_REAR_CHANNEL:
1237 mixer_scb = ins->rear_mix_scb;
1238 break;
1239 case DSP_PCM_CENTER_LFE_CHANNEL:
1240 mixer_scb = ins->center_lfe_mix_scb;
1241 break;
1242 case DSP_PCM_S71_CHANNEL:
1243 /* TODO */
1244 snd_BUG();
1245 break;
1246 case DSP_IEC958_CHANNEL:
1247 if (snd_BUG_ON(!ins->asynch_tx_scb))
1248 return NULL;
1249 mixer_scb = ins->asynch_tx_scb;
1250
1251 /* if sample rate is set to 48khz we pass
1252 the Sample Rate Converted (which could
1253 alter the raw data stream ...) */
1254 if (sample_rate == 48000) {
1255 dev_dbg(chip->card->dev, "IEC958 pass through\n");
1256 /* Hack to bypass creating a new SRC */
1257 pass_through = 1;
1258 }
1259 break;
1260 default:
1261 snd_BUG();
1262 return NULL;
1263 }
1264 /* default sample rate is 44100 */
1265 if (!sample_rate) sample_rate = 44100;
1266
1267 /* search for a already created SRC SCB with the same sample rate */
1268 for (i = 0; i < DSP_MAX_PCM_CHANNELS &&
1269 (pcm_index == -1 || src_scb == NULL); ++i) {
1270
1271 /* virtual channel reserved
1272 for capture */
1273 if (i == CS46XX_DSP_CAPTURE_CHANNEL) continue;
1274
1275 if (ins->pcm_channels[i].active) {
1276 if (!src_scb &&
1277 ins->pcm_channels[i].sample_rate == sample_rate &&
1278 ins->pcm_channels[i].mixer_scb == mixer_scb) {
1279 src_scb = ins->pcm_channels[i].src_scb;
1280 ins->pcm_channels[i].src_scb->ref_count ++;
1281 src_index = ins->pcm_channels[i].src_slot;
1282 }
1283 } else if (pcm_index == -1) {
1284 pcm_index = i;
1285 }
1286 }
1287
1288 if (pcm_index == -1) {
1289 dev_err(chip->card->dev, "dsp_spos: no free PCM channel\n");
1290 return NULL;
1291 }
1292
1293 if (src_scb == NULL) {
1294 if (ins->nsrc_scb >= DSP_MAX_SRC_NR) {
1295 dev_err(chip->card->dev,
1296 "dsp_spos: to many SRC instances\n!");
1297 return NULL;
1298 }
1299
1300 /* find a free slot */
1301 for (i = 0; i < DSP_MAX_SRC_NR; ++i) {
1302 if (ins->src_scb_slots[i] == 0) {
1303 src_index = i;
1304 ins->src_scb_slots[i] = 1;
1305 break;
1306 }
1307 }
1308 if (snd_BUG_ON(src_index == -1))
1309 return NULL;
1310
1311 /* we need to create a new SRC SCB */
1312 if (mixer_scb->sub_list_ptr == ins->the_null_scb) {
1313 src_parent_scb = mixer_scb;
1314 insert_point = SCB_ON_PARENT_SUBLIST_SCB;
1315 } else {
1316 src_parent_scb = find_next_free_scb(chip,mixer_scb->sub_list_ptr);
1317 insert_point = SCB_ON_PARENT_NEXT_SCB;
1318 }
1319
1320 snprintf (scb_name,DSP_MAX_SCB_NAME,"SrcTask_SCB%d",src_index);
1321
1322 dev_dbg(chip->card->dev,
1323 "dsp_spos: creating SRC \"%s\"\n", scb_name);
1324 src_scb = cs46xx_dsp_create_src_task_scb(chip,scb_name,
1325 sample_rate,
1326 src_output_buffer_addr[src_index],
1327 src_delay_buffer_addr[src_index],
1328 /* 0x400 - 0x600 source SCBs */
1329 0x400 + (src_index * 0x10) ,
1330 src_parent_scb,
1331 insert_point,
1332 pass_through);
1333
1334 if (!src_scb) {
1335 dev_err(chip->card->dev,
1336 "dsp_spos: failed to create SRCtaskSCB\n");
1337 return NULL;
1338 }
1339
1340 /* cs46xx_dsp_set_src_sample_rate(chip,src_scb,sample_rate); */
1341
1342 ins->nsrc_scb ++;
1343 }
1344
1345
1346 snprintf (scb_name,DSP_MAX_SCB_NAME,"PCMReader_SCB%d",pcm_index);
1347
1348 dev_dbg(chip->card->dev, "dsp_spos: creating PCM \"%s\" (%d)\n",
1349 scb_name, pcm_channel_id);
1350
1351 pcm_scb = cs46xx_dsp_create_pcm_reader_scb(chip,scb_name,
1352 pcm_reader_buffer_addr[pcm_index],
1353 /* 0x200 - 400 PCMreader SCBs */
1354 (pcm_index * 0x10) + 0x200,
1355 pcm_index, /* virtual channel 0-31 */
1356 hw_dma_addr, /* pcm hw addr */
1357 NULL, /* parent SCB ptr */
1358 0 /* insert point */
1359 );
1360
1361 if (!pcm_scb) {
1362 dev_err(chip->card->dev,
1363 "dsp_spos: failed to create PCMreaderSCB\n");
1364 return NULL;
1365 }
1366
1367 spin_lock_irqsave(&chip->reg_lock, flags);
1368 ins->pcm_channels[pcm_index].sample_rate = sample_rate;
1369 ins->pcm_channels[pcm_index].pcm_reader_scb = pcm_scb;
1370 ins->pcm_channels[pcm_index].src_scb = src_scb;
1371 ins->pcm_channels[pcm_index].unlinked = 1;
1372 ins->pcm_channels[pcm_index].private_data = private_data;
1373 ins->pcm_channels[pcm_index].src_slot = src_index;
1374 ins->pcm_channels[pcm_index].active = 1;
1375 ins->pcm_channels[pcm_index].pcm_slot = pcm_index;
1376 ins->pcm_channels[pcm_index].mixer_scb = mixer_scb;
1377 ins->npcm_channels ++;
1378 spin_unlock_irqrestore(&chip->reg_lock, flags);
1379
1380 return (ins->pcm_channels + pcm_index);
1381 }
1382
cs46xx_dsp_pcm_channel_set_period(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel,int period_size)1383 int cs46xx_dsp_pcm_channel_set_period (struct snd_cs46xx * chip,
1384 struct dsp_pcm_channel_descriptor * pcm_channel,
1385 int period_size)
1386 {
1387 u32 temp = snd_cs46xx_peek (chip,pcm_channel->pcm_reader_scb->address << 2);
1388 temp &= ~DMA_RQ_C1_SOURCE_SIZE_MASK;
1389
1390 switch (period_size) {
1391 case 2048:
1392 temp |= DMA_RQ_C1_SOURCE_MOD1024;
1393 break;
1394 case 1024:
1395 temp |= DMA_RQ_C1_SOURCE_MOD512;
1396 break;
1397 case 512:
1398 temp |= DMA_RQ_C1_SOURCE_MOD256;
1399 break;
1400 case 256:
1401 temp |= DMA_RQ_C1_SOURCE_MOD128;
1402 break;
1403 case 128:
1404 temp |= DMA_RQ_C1_SOURCE_MOD64;
1405 break;
1406 case 64:
1407 temp |= DMA_RQ_C1_SOURCE_MOD32;
1408 break;
1409 case 32:
1410 temp |= DMA_RQ_C1_SOURCE_MOD16;
1411 break;
1412 default:
1413 dev_dbg(chip->card->dev,
1414 "period size (%d) not supported by HW\n", period_size);
1415 return -EINVAL;
1416 }
1417
1418 snd_cs46xx_poke (chip,pcm_channel->pcm_reader_scb->address << 2,temp);
1419
1420 return 0;
1421 }
1422
cs46xx_dsp_pcm_ostream_set_period(struct snd_cs46xx * chip,int period_size)1423 int cs46xx_dsp_pcm_ostream_set_period (struct snd_cs46xx * chip,
1424 int period_size)
1425 {
1426 u32 temp = snd_cs46xx_peek (chip,WRITEBACK_SCB_ADDR << 2);
1427 temp &= ~DMA_RQ_C1_DEST_SIZE_MASK;
1428
1429 switch (period_size) {
1430 case 2048:
1431 temp |= DMA_RQ_C1_DEST_MOD1024;
1432 break;
1433 case 1024:
1434 temp |= DMA_RQ_C1_DEST_MOD512;
1435 break;
1436 case 512:
1437 temp |= DMA_RQ_C1_DEST_MOD256;
1438 break;
1439 case 256:
1440 temp |= DMA_RQ_C1_DEST_MOD128;
1441 break;
1442 case 128:
1443 temp |= DMA_RQ_C1_DEST_MOD64;
1444 break;
1445 case 64:
1446 temp |= DMA_RQ_C1_DEST_MOD32;
1447 break;
1448 case 32:
1449 temp |= DMA_RQ_C1_DEST_MOD16;
1450 break;
1451 default:
1452 dev_dbg(chip->card->dev,
1453 "period size (%d) not supported by HW\n", period_size);
1454 return -EINVAL;
1455 }
1456
1457 snd_cs46xx_poke (chip,WRITEBACK_SCB_ADDR << 2,temp);
1458
1459 return 0;
1460 }
1461
cs46xx_dsp_destroy_pcm_channel(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel)1462 void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
1463 struct dsp_pcm_channel_descriptor * pcm_channel)
1464 {
1465 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1466 unsigned long flags;
1467
1468 if (snd_BUG_ON(!pcm_channel->active ||
1469 ins->npcm_channels <= 0 ||
1470 pcm_channel->src_scb->ref_count <= 0))
1471 return;
1472
1473 spin_lock_irqsave(&chip->reg_lock, flags);
1474 pcm_channel->unlinked = 1;
1475 pcm_channel->active = 0;
1476 pcm_channel->private_data = NULL;
1477 pcm_channel->src_scb->ref_count --;
1478 ins->npcm_channels --;
1479 spin_unlock_irqrestore(&chip->reg_lock, flags);
1480
1481 cs46xx_dsp_remove_scb(chip,pcm_channel->pcm_reader_scb);
1482
1483 if (!pcm_channel->src_scb->ref_count) {
1484 cs46xx_dsp_remove_scb(chip,pcm_channel->src_scb);
1485
1486 if (snd_BUG_ON(pcm_channel->src_slot < 0 ||
1487 pcm_channel->src_slot >= DSP_MAX_SRC_NR))
1488 return;
1489
1490 ins->src_scb_slots[pcm_channel->src_slot] = 0;
1491 ins->nsrc_scb --;
1492 }
1493 }
1494
cs46xx_dsp_pcm_unlink(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel)1495 int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip,
1496 struct dsp_pcm_channel_descriptor * pcm_channel)
1497 {
1498 unsigned long flags;
1499
1500 if (snd_BUG_ON(!pcm_channel->active ||
1501 chip->dsp_spos_instance->npcm_channels <= 0))
1502 return -EIO;
1503
1504 spin_lock_irqsave(&chip->reg_lock, flags);
1505 if (pcm_channel->unlinked) {
1506 spin_unlock_irqrestore(&chip->reg_lock, flags);
1507 return -EIO;
1508 }
1509
1510 pcm_channel->unlinked = 1;
1511
1512 _dsp_unlink_scb (chip,pcm_channel->pcm_reader_scb);
1513 spin_unlock_irqrestore(&chip->reg_lock, flags);
1514
1515 return 0;
1516 }
1517
cs46xx_dsp_pcm_link(struct snd_cs46xx * chip,struct dsp_pcm_channel_descriptor * pcm_channel)1518 int cs46xx_dsp_pcm_link (struct snd_cs46xx * chip,
1519 struct dsp_pcm_channel_descriptor * pcm_channel)
1520 {
1521 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1522 struct dsp_scb_descriptor * parent_scb;
1523 struct dsp_scb_descriptor * src_scb = pcm_channel->src_scb;
1524 unsigned long flags;
1525
1526 spin_lock_irqsave(&chip->reg_lock, flags);
1527
1528 if (pcm_channel->unlinked == 0) {
1529 spin_unlock_irqrestore(&chip->reg_lock, flags);
1530 return -EIO;
1531 }
1532
1533 parent_scb = src_scb;
1534
1535 if (src_scb->sub_list_ptr != ins->the_null_scb) {
1536 src_scb->sub_list_ptr->parent_scb_ptr = pcm_channel->pcm_reader_scb;
1537 pcm_channel->pcm_reader_scb->next_scb_ptr = src_scb->sub_list_ptr;
1538 }
1539
1540 src_scb->sub_list_ptr = pcm_channel->pcm_reader_scb;
1541
1542 snd_BUG_ON(pcm_channel->pcm_reader_scb->parent_scb_ptr);
1543 pcm_channel->pcm_reader_scb->parent_scb_ptr = parent_scb;
1544
1545 /* update SCB entry in DSP RAM */
1546 cs46xx_dsp_spos_update_scb(chip,pcm_channel->pcm_reader_scb);
1547
1548 /* update parent SCB entry */
1549 cs46xx_dsp_spos_update_scb(chip,parent_scb);
1550
1551 pcm_channel->unlinked = 0;
1552 spin_unlock_irqrestore(&chip->reg_lock, flags);
1553 return 0;
1554 }
1555
1556 struct dsp_scb_descriptor *
cs46xx_add_record_source(struct snd_cs46xx * chip,struct dsp_scb_descriptor * source,u16 addr,char * scb_name)1557 cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * source,
1558 u16 addr, char * scb_name)
1559 {
1560 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1561 struct dsp_scb_descriptor * parent;
1562 struct dsp_scb_descriptor * pcm_input;
1563 int insert_point;
1564
1565 if (snd_BUG_ON(!ins->record_mixer_scb))
1566 return NULL;
1567
1568 if (ins->record_mixer_scb->sub_list_ptr != ins->the_null_scb) {
1569 parent = find_next_free_scb (chip,ins->record_mixer_scb->sub_list_ptr);
1570 insert_point = SCB_ON_PARENT_NEXT_SCB;
1571 } else {
1572 parent = ins->record_mixer_scb;
1573 insert_point = SCB_ON_PARENT_SUBLIST_SCB;
1574 }
1575
1576 pcm_input = cs46xx_dsp_create_pcm_serial_input_scb(chip,scb_name,addr,
1577 source, parent,
1578 insert_point);
1579
1580 return pcm_input;
1581 }
1582
cs46xx_src_unlink(struct snd_cs46xx * chip,struct dsp_scb_descriptor * src)1583 int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
1584 {
1585 unsigned long flags;
1586
1587 if (snd_BUG_ON(!src->parent_scb_ptr))
1588 return -EINVAL;
1589
1590 /* mute SCB */
1591 cs46xx_dsp_scb_set_volume (chip,src,0,0);
1592
1593 spin_lock_irqsave(&chip->reg_lock, flags);
1594 _dsp_unlink_scb (chip,src);
1595 spin_unlock_irqrestore(&chip->reg_lock, flags);
1596
1597 return 0;
1598 }
1599
cs46xx_src_link(struct snd_cs46xx * chip,struct dsp_scb_descriptor * src)1600 int cs46xx_src_link(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
1601 {
1602 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1603 struct dsp_scb_descriptor * parent_scb;
1604
1605 if (snd_BUG_ON(src->parent_scb_ptr))
1606 return -EINVAL;
1607 if (snd_BUG_ON(!ins->master_mix_scb))
1608 return -EINVAL;
1609
1610 if (ins->master_mix_scb->sub_list_ptr != ins->the_null_scb) {
1611 parent_scb = find_next_free_scb (chip,ins->master_mix_scb->sub_list_ptr);
1612 parent_scb->next_scb_ptr = src;
1613 } else {
1614 parent_scb = ins->master_mix_scb;
1615 parent_scb->sub_list_ptr = src;
1616 }
1617
1618 src->parent_scb_ptr = parent_scb;
1619
1620 /* update entry in DSP RAM */
1621 cs46xx_dsp_spos_update_scb(chip,parent_scb);
1622
1623 return 0;
1624 }
1625
cs46xx_dsp_enable_spdif_out(struct snd_cs46xx * chip)1626 int cs46xx_dsp_enable_spdif_out (struct snd_cs46xx *chip)
1627 {
1628 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1629
1630 if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
1631 cs46xx_dsp_enable_spdif_hw (chip);
1632 }
1633
1634 /* dont touch anything if SPDIF is open */
1635 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
1636 /* when cs46xx_iec958_post_close(...) is called it
1637 will call this function if necessary depending on
1638 this bit */
1639 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1640
1641 return -EBUSY;
1642 }
1643
1644 if (snd_BUG_ON(ins->asynch_tx_scb))
1645 return -EINVAL;
1646 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr !=
1647 ins->the_null_scb))
1648 return -EINVAL;
1649
1650 /* reset output snooper sample buffer pointer */
1651 snd_cs46xx_poke (chip, (ins->ref_snoop_scb->address + 2) << 2,
1652 (OUTPUT_SNOOP_BUFFER + 0x10) << 0x10 );
1653
1654 /* The asynch. transfer task */
1655 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
1656 SPDIFO_SCB_INST,
1657 SPDIFO_IP_OUTPUT_BUFFER1,
1658 ins->master_mix_scb,
1659 SCB_ON_PARENT_NEXT_SCB);
1660 if (!ins->asynch_tx_scb) return -ENOMEM;
1661
1662 ins->spdif_pcm_input_scb = cs46xx_dsp_create_pcm_serial_input_scb(chip,"PCMSerialInput_II",
1663 PCMSERIALINII_SCB_ADDR,
1664 ins->ref_snoop_scb,
1665 ins->asynch_tx_scb,
1666 SCB_ON_PARENT_SUBLIST_SCB);
1667
1668
1669 if (!ins->spdif_pcm_input_scb) return -ENOMEM;
1670
1671 /* monitor state */
1672 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1673
1674 return 0;
1675 }
1676
cs46xx_dsp_disable_spdif_out(struct snd_cs46xx * chip)1677 int cs46xx_dsp_disable_spdif_out (struct snd_cs46xx *chip)
1678 {
1679 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1680
1681 /* dont touch anything if SPDIF is open */
1682 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
1683 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1684 return -EBUSY;
1685 }
1686
1687 /* check integrety */
1688 if (snd_BUG_ON(!ins->asynch_tx_scb))
1689 return -EINVAL;
1690 if (snd_BUG_ON(!ins->spdif_pcm_input_scb))
1691 return -EINVAL;
1692 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != ins->asynch_tx_scb))
1693 return -EINVAL;
1694 if (snd_BUG_ON(ins->asynch_tx_scb->parent_scb_ptr !=
1695 ins->master_mix_scb))
1696 return -EINVAL;
1697
1698 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
1699 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
1700
1701 ins->spdif_pcm_input_scb = NULL;
1702 ins->asynch_tx_scb = NULL;
1703
1704 /* clear buffer to prevent any undesired noise */
1705 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
1706
1707 /* monitor state */
1708 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1709
1710
1711 return 0;
1712 }
1713
cs46xx_iec958_pre_open(struct snd_cs46xx * chip)1714 int cs46xx_iec958_pre_open (struct snd_cs46xx *chip)
1715 {
1716 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1717
1718 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
1719 /* remove AsynchFGTxSCB and and PCMSerialInput_II */
1720 cs46xx_dsp_disable_spdif_out (chip);
1721
1722 /* save state */
1723 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1724 }
1725
1726 /* if not enabled already */
1727 if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
1728 cs46xx_dsp_enable_spdif_hw (chip);
1729 }
1730
1731 /* Create the asynch. transfer task for playback */
1732 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
1733 SPDIFO_SCB_INST,
1734 SPDIFO_IP_OUTPUT_BUFFER1,
1735 ins->master_mix_scb,
1736 SCB_ON_PARENT_NEXT_SCB);
1737
1738
1739 /* set spdif channel status value for streaming */
1740 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_stream);
1741
1742 ins->spdif_status_out |= DSP_SPDIF_STATUS_PLAYBACK_OPEN;
1743
1744 return 0;
1745 }
1746
cs46xx_iec958_post_close(struct snd_cs46xx * chip)1747 int cs46xx_iec958_post_close (struct snd_cs46xx *chip)
1748 {
1749 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1750
1751 if (snd_BUG_ON(!ins->asynch_tx_scb))
1752 return -EINVAL;
1753
1754 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_PLAYBACK_OPEN;
1755
1756 /* restore settings */
1757 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);
1758
1759 /* deallocate stuff */
1760 if (ins->spdif_pcm_input_scb != NULL) {
1761 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
1762 ins->spdif_pcm_input_scb = NULL;
1763 }
1764
1765 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
1766 ins->asynch_tx_scb = NULL;
1767
1768 /* clear buffer to prevent any undesired noise */
1769 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
1770
1771 /* restore state */
1772 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
1773 cs46xx_dsp_enable_spdif_out (chip);
1774 }
1775
1776 return 0;
1777 }
1778