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I2C: Add helper macro for i2c_driver boilerplate
[zen-stable.git] / sound / pci / cs46xx / dsp_spos_scb_lib.c
blob00b148a10239f4d0f97caba451fd6d0b3b4d46c0
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 <asm/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 <sound/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
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_PROC_FS
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 dsp_spos_instance * ins;
77 struct snd_cs46xx *chip = scb_info->chip;
78 int j,col;
79 void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
80
81 ins = chip->dsp_spos_instance;
82
83 mutex_lock(&chip->spos_mutex);
84 snd_iprintf(buffer,"%04x %s:\n",scb->address,scb->scb_name);
85
86 for (col = 0,j = 0;j < 0x10; j++,col++) {
87 if (col == 4) {
88 snd_iprintf(buffer,"\n");
89 col = 0;
90 }
91 snd_iprintf(buffer,"%08x ",readl(dst + (scb->address + j) * sizeof(u32)));
92 }
93
94 snd_iprintf(buffer,"\n");
95
96 if (scb->parent_scb_ptr != NULL) {
97 snd_iprintf(buffer,"parent [%s:%04x] ",
98 scb->parent_scb_ptr->scb_name,
99 scb->parent_scb_ptr->address);
100 } else snd_iprintf(buffer,"parent [none] ");
101
102 snd_iprintf(buffer,"sub_list_ptr [%s:%04x]\nnext_scb_ptr [%s:%04x] task_entry [%s:%04x]\n",
103 scb->sub_list_ptr->scb_name,
104 scb->sub_list_ptr->address,
105 scb->next_scb_ptr->scb_name,
106 scb->next_scb_ptr->address,
107 scb->task_entry->symbol_name,
108 scb->task_entry->address);
109
110 snd_iprintf(buffer,"index [%d] ref_count [%d]\n",scb->index,scb->ref_count);
111 mutex_unlock(&chip->spos_mutex);
112 }
113 #endif
114
115 static void _dsp_unlink_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
116 {
117 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
118
119 if ( scb->parent_scb_ptr ) {
120 /* unlink parent SCB */
121 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != scb &&
122 scb->parent_scb_ptr->next_scb_ptr != scb))
123 return;
124
125 if (scb->parent_scb_ptr->sub_list_ptr == scb) {
126
127 if (scb->next_scb_ptr == ins->the_null_scb) {
128 /* last and only node in parent sublist */
129 scb->parent_scb_ptr->sub_list_ptr = scb->sub_list_ptr;
130
131 if (scb->sub_list_ptr != ins->the_null_scb) {
132 scb->sub_list_ptr->parent_scb_ptr = scb->parent_scb_ptr;
133 }
134 scb->sub_list_ptr = ins->the_null_scb;
135 } else {
136 /* first node in parent sublist */
137 scb->parent_scb_ptr->sub_list_ptr = scb->next_scb_ptr;
138
139 if (scb->next_scb_ptr != ins->the_null_scb) {
140 /* update next node parent ptr. */
141 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
142 }
143 scb->next_scb_ptr = ins->the_null_scb;
144 }
145 } else {
146 scb->parent_scb_ptr->next_scb_ptr = scb->next_scb_ptr;
147
148 if (scb->next_scb_ptr != ins->the_null_scb) {
149 /* update next node parent ptr. */
150 scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
151 }
152 scb->next_scb_ptr = ins->the_null_scb;
153 }
154
155 /* update parent first entry in DSP RAM */
156 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
157
158 /* then update entry in DSP RAM */
159 cs46xx_dsp_spos_update_scb(chip,scb);
160
161 scb->parent_scb_ptr = NULL;
162 }
163 }
164
165 static void _dsp_clear_sample_buffer (struct snd_cs46xx *chip, u32 sample_buffer_addr,
166 int dword_count)
167 {
168 void __iomem *dst = chip->region.idx[2].remap_addr + sample_buffer_addr;
169 int i;
170
171 for (i = 0; i < dword_count ; ++i ) {
172 writel(0, dst);
173 dst += 4;
174 }
175 }
176
177 void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
178 {
179 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
180 unsigned long flags;
181
182 /* check integrety */
183 if (snd_BUG_ON(scb->index < 0 ||
184 scb->index >= ins->nscb ||
185 (ins->scbs + scb->index) != scb))
186 return;
187
188 #if 0
189 /* can't remove a SCB with childs before
190 removing childs first */
191 if (snd_BUG_ON(scb->sub_list_ptr != ins->the_null_scb ||
192 scb->next_scb_ptr != ins->the_null_scb))
193 goto _end;
194 #endif
195
196 spin_lock_irqsave(&chip->reg_lock, flags);
197 _dsp_unlink_scb (chip,scb);
198 spin_unlock_irqrestore(&chip->reg_lock, flags);
199
200 cs46xx_dsp_proc_free_scb_desc(scb);
201 if (snd_BUG_ON(!scb->scb_symbol))
202 return;
203 remove_symbol (chip,scb->scb_symbol);
204
205 ins->scbs[scb->index].deleted = 1;
206 #ifdef CONFIG_PM
207 kfree(ins->scbs[scb->index].data);
208 ins->scbs[scb->index].data = NULL;
209 #endif
210
211 if (scb->index < ins->scb_highest_frag_index)
212 ins->scb_highest_frag_index = scb->index;
213
214 if (scb->index == ins->nscb - 1) {
215 ins->nscb --;
216 }
217
218 if (ins->scb_highest_frag_index > ins->nscb) {
219 ins->scb_highest_frag_index = ins->nscb;
220 }
221
222 #if 0
223 /* !!!! THIS IS A PIECE OF SHIT MADE BY ME !!! */
224 for(i = scb->index + 1;i < ins->nscb; ++i) {
225 ins->scbs[i - 1].index = i - 1;
226 }
227 #endif
228 }
229
230
231 #ifdef CONFIG_PROC_FS
232 void cs46xx_dsp_proc_free_scb_desc (struct dsp_scb_descriptor * scb)
233 {
234 if (scb->proc_info) {
235 struct proc_scb_info * scb_info = scb->proc_info->private_data;
236
237 snd_printdd("cs46xx_dsp_proc_free_scb_desc: freeing %s\n",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
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 | S_IRUGO | S_IWUSR;
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_PROC_FS */
286
287 static struct dsp_scb_descriptor *
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 snd_printdd("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 printk ("scb->parent_scb_ptr = %s\n",scb->parent_scb_ptr->scb_name);
324 printk ("scb->parent_scb_ptr->next_scb_ptr = %s\n",scb->parent_scb_ptr->next_scb_ptr->scb_name);
325 printk ("scb->parent_scb_ptr->sub_list_ptr = %s\n",scb->parent_scb_ptr->sub_list_ptr->scb_name);
326 #endif
327 /* link to parent SCB */
328 if (scb_child_type == SCB_ON_PARENT_NEXT_SCB) {
329 if (snd_BUG_ON(scb->parent_scb_ptr->next_scb_ptr !=
330 ins->the_null_scb))
331 return NULL;
332
333 scb->parent_scb_ptr->next_scb_ptr = scb;
334
335 } else if (scb_child_type == SCB_ON_PARENT_SUBLIST_SCB) {
336 if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr !=
337 ins->the_null_scb))
338 return NULL;
339
340 scb->parent_scb_ptr->sub_list_ptr = scb;
341 } else {
342 snd_BUG();
343 }
344
345 spin_lock_irqsave(&chip->reg_lock, flags);
346
347 /* update entry in DSP RAM */
348 cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
349
350 spin_unlock_irqrestore(&chip->reg_lock, flags);
351 }
352
353
354 cs46xx_dsp_proc_register_scb_desc (chip,scb);
355
356 return scb;
357 }
358
359 static struct dsp_scb_descriptor *
360 cs46xx_dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data,
361 u32 dest, char * task_entry_name,
362 struct dsp_scb_descriptor * parent_scb,
363 int scb_child_type)
364 {
365 struct dsp_symbol_entry * task_entry;
366
367 task_entry = cs46xx_dsp_lookup_symbol (chip,task_entry_name,
368 SYMBOL_CODE);
369
370 if (task_entry == NULL) {
371 snd_printk (KERN_ERR "dsp_spos: symbol %s not found\n",task_entry_name);
372 return NULL;
373 }
374
375 return _dsp_create_generic_scb (chip,name,scb_data,dest,task_entry,
376 parent_scb,scb_child_type);
377 }
378
379 struct dsp_scb_descriptor *
380 cs46xx_dsp_create_timing_master_scb (struct snd_cs46xx *chip)
381 {
382 struct dsp_scb_descriptor * scb;
383
384 struct dsp_timing_master_scb timing_master_scb = {
385 { 0,
386 0,
387 0,
388 0
389 },
390 { 0,
391 0,
392 0,
393 0,
394 0
395 },
396 0,0,
397 0,NULL_SCB_ADDR,
398 0,0, /* extraSampleAccum:TMreserved */
399 0,0, /* codecFIFOptr:codecFIFOsyncd */
400 0x0001,0x8000, /* fracSampAccumQm1:TMfrmsLeftInGroup */
401 0x0001,0x0000, /* fracSampCorrectionQm1:TMfrmGroupLength */
402 0x00060000 /* nSampPerFrmQ15 */
403 };
404
405 scb = cs46xx_dsp_create_generic_scb(chip,"TimingMasterSCBInst",(u32 *)&timing_master_scb,
406 TIMINGMASTER_SCB_ADDR,
407 "TIMINGMASTER",NULL,SCB_NO_PARENT);
408
409 return scb;
410 }
411
412
413 struct dsp_scb_descriptor *
414 cs46xx_dsp_create_codec_out_scb(struct snd_cs46xx * chip, char * codec_name,
415 u16 channel_disp, u16 fifo_addr, u16 child_scb_addr,
416 u32 dest, struct dsp_scb_descriptor * parent_scb,
417 int scb_child_type)
418 {
419 struct dsp_scb_descriptor * scb;
420
421 struct dsp_codec_output_scb codec_out_scb = {
422 { 0,
423 0,
424 0,
425 0
426 },
427 {
428 0,
429 0,
430 0,
431 0,
432 0
433 },
434 0,0,
435 0,NULL_SCB_ADDR,
436 0, /* COstrmRsConfig */
437 0, /* COstrmBufPtr */
438 channel_disp,fifo_addr, /* leftChanBaseIOaddr:rightChanIOdisp */
439 0x0000,0x0080, /* (!AC97!) COexpVolChangeRate:COscaleShiftCount */
440 0,child_scb_addr /* COreserved - need child scb to work with rom code */
441 };
442
443
444 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_out_scb,
445 dest,"S16_CODECOUTPUTTASK",parent_scb,
446 scb_child_type);
447
448 return scb;
449 }
450
451 struct dsp_scb_descriptor *
452 cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip, char * codec_name,
453 u16 channel_disp, u16 fifo_addr, u16 sample_buffer_addr,
454 u32 dest, struct dsp_scb_descriptor * parent_scb,
455 int scb_child_type)
456 {
457
458 struct dsp_scb_descriptor * scb;
459 struct dsp_codec_input_scb codec_input_scb = {
460 { 0,
461 0,
462 0,
463 0
464 },
465 {
466 0,
467 0,
468 0,
469 0,
470 0
471 },
472
473 #if 0 /* cs4620 */
474 SyncIOSCB,NULL_SCB_ADDR
475 #else
476 0 , 0,
477 #endif
478 0,0,
479
480 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64, /* strmRsConfig */
481 sample_buffer_addr << 0x10, /* strmBufPtr; defined as a dword ptr, used as a byte ptr */
482 channel_disp,fifo_addr, /* (!AC97!) leftChanBaseINaddr=AC97primary
483 link input slot 3 :rightChanINdisp=""slot 4 */
484 0x0000,0x0000, /* (!AC97!) ????:scaleShiftCount; no shift needed
485 because AC97 is already 20 bits */
486 0x80008000 /* ??clw cwcgame.scb has 0 */
487 };
488
489 scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_input_scb,
490 dest,"S16_CODECINPUTTASK",parent_scb,
491 scb_child_type);
492 return scb;
493 }
494
495
496 static struct dsp_scb_descriptor *
497 cs46xx_dsp_create_pcm_reader_scb(struct snd_cs46xx * chip, char * scb_name,
498 u16 sample_buffer_addr, u32 dest,
499 int virtual_channel, u32 playback_hw_addr,
500 struct dsp_scb_descriptor * parent_scb,
501 int scb_child_type)
502 {
503 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
504 struct dsp_scb_descriptor * scb;
505
506 struct dsp_generic_scb pcm_reader_scb = {
507
508 /*
509 Play DMA Task xfers data from host buffer to SP buffer
510 init/runtime variables:
511 PlayAC: Play Audio Data Conversion - SCB loc: 2nd dword, mask: 0x0000F000L
512 DATA_FMT_16BIT_ST_LTLEND(0x00000000L) from 16-bit stereo, little-endian
513 DATA_FMT_8_BIT_ST_SIGNED(0x00001000L) from 8-bit stereo, signed
514 DATA_FMT_16BIT_MN_LTLEND(0x00002000L) from 16-bit mono, little-endian
515 DATA_FMT_8_BIT_MN_SIGNED(0x00003000L) from 8-bit mono, signed
516 DATA_FMT_16BIT_ST_BIGEND(0x00004000L) from 16-bit stereo, big-endian
517 DATA_FMT_16BIT_MN_BIGEND(0x00006000L) from 16-bit mono, big-endian
518 DATA_FMT_8_BIT_ST_UNSIGNED(0x00009000L) from 8-bit stereo, unsigned
519 DATA_FMT_8_BIT_MN_UNSIGNED(0x0000b000L) from 8-bit mono, unsigned
520 ? Other combinations possible from:
521 DMA_RQ_C2_AUDIO_CONVERT_MASK 0x0000F000L
522 DMA_RQ_C2_AC_NONE 0x00000000L
523 DMA_RQ_C2_AC_8_TO_16_BIT 0x00001000L
524 DMA_RQ_C2_AC_MONO_TO_STEREO 0x00002000L
525 DMA_RQ_C2_AC_ENDIAN_CONVERT 0x00004000L
526 DMA_RQ_C2_AC_SIGNED_CONVERT 0x00008000L
527
528 HostBuffAddr: Host Buffer Physical Byte Address - SCB loc:3rd dword, Mask: 0xFFFFFFFFL
529 aligned to dword boundary
530 */
531 /* Basic (non scatter/gather) DMA requestor (4 ints) */
532 { DMA_RQ_C1_SOURCE_ON_HOST + /* source buffer is on the host */
533 DMA_RQ_C1_SOURCE_MOD1024 + /* source buffer is 1024 dwords (4096 bytes) */
534 DMA_RQ_C1_DEST_MOD32 + /* dest buffer(PCMreaderBuf) is 32 dwords*/
535 DMA_RQ_C1_WRITEBACK_SRC_FLAG + /* ?? */
536 DMA_RQ_C1_WRITEBACK_DEST_FLAG + /* ?? */
537 15, /* DwordCount-1: picked 16 for DwordCount because Jim */
538 /* Barnette said that is what we should use since */
539 /* we are not running in optimized mode? */
540 DMA_RQ_C2_AC_NONE +
541 DMA_RQ_C2_SIGNAL_SOURCE_PINGPONG + /* set play interrupt (bit0) in HISR when source */
542 /* buffer (on host) crosses half-way point */
543 virtual_channel, /* Play DMA channel arbitrarily set to 0 */
544 playback_hw_addr, /* HostBuffAddr (source) */
545 DMA_RQ_SD_SP_SAMPLE_ADDR + /* destination buffer is in SP Sample Memory */
546 sample_buffer_addr /* SP Buffer Address (destination) */
547 },
548 /* Scatter/gather DMA requestor extension (5 ints) */
549 {
550 0,
551 0,
552 0,
553 0,
554 0
555 },
556 /* Sublist pointer & next stream control block (SCB) link. */
557 NULL_SCB_ADDR,NULL_SCB_ADDR,
558 /* Pointer to this tasks parameter block & stream function pointer */
559 0,NULL_SCB_ADDR,
560 /* rsConfig register for stream buffer (rsDMA reg. is loaded from basicReq.daw */
561 /* for incoming streams, or basicReq.saw, for outgoing streams) */
562 RSCONFIG_DMA_ENABLE + /* enable DMA */
563 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) + /* MAX_DMA_SIZE picked to be 19 since SPUD */
564 /* uses it for some reason */
565 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) + /* stream number = SCBaddr/16 */
566 RSCONFIG_SAMPLE_16STEREO +
567 RSCONFIG_MODULO_32, /* dest buffer(PCMreaderBuf) is 32 dwords (256 bytes) */
568 /* Stream sample pointer & MAC-unit mode for this stream */
569 (sample_buffer_addr << 0x10),
570 /* Fractional increment per output sample in the input sample buffer */
571 0,
572 {
573 /* Standard stereo volume control
574 default muted */
575 0xffff,0xffff,
576 0xffff,0xffff
577 }
578 };
579
580 if (ins->null_algorithm == NULL) {
581 ins->null_algorithm = cs46xx_dsp_lookup_symbol (chip,"NULLALGORITHM",
582 SYMBOL_CODE);
583
584 if (ins->null_algorithm == NULL) {
585 snd_printk (KERN_ERR "dsp_spos: symbol NULLALGORITHM not found\n");
586 return NULL;
587 }
588 }
589
590 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_reader_scb,
591 dest,ins->null_algorithm,parent_scb,
592 scb_child_type);
593
594 return scb;
595 }
596
597 #define GOF_PER_SEC 200
598
599 struct dsp_scb_descriptor *
600 cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip, char * scb_name,
601 int rate,
602 u16 src_buffer_addr,
603 u16 src_delay_buffer_addr, u32 dest,
604 struct dsp_scb_descriptor * parent_scb,
605 int scb_child_type,
606 int pass_through)
607 {
608
609 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
610 struct dsp_scb_descriptor * scb;
611 unsigned int tmp1, tmp2;
612 unsigned int phiIncr;
613 unsigned int correctionPerGOF, correctionPerSec;
614
615 snd_printdd( "dsp_spos: setting %s rate to %u\n",scb_name,rate);
616
617 /*
618 * Compute the values used to drive the actual sample rate conversion.
619 * The following formulas are being computed, using inline assembly
620 * since we need to use 64 bit arithmetic to compute the values:
621 *
622 * phiIncr = floor((Fs,in * 2^26) / Fs,out)
623 * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
624 * GOF_PER_SEC)
625 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
626 * GOF_PER_SEC * correctionPerGOF
627 *
628 * i.e.
629 *
630 * phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
631 * correctionPerGOF:correctionPerSec =
632 * dividend:remainder(ulOther / GOF_PER_SEC)
633 */
634 tmp1 = rate << 16;
635 phiIncr = tmp1 / 48000;
636 tmp1 -= phiIncr * 48000;
637 tmp1 <<= 10;
638 phiIncr <<= 10;
639 tmp2 = tmp1 / 48000;
640 phiIncr += tmp2;
641 tmp1 -= tmp2 * 48000;
642 correctionPerGOF = tmp1 / GOF_PER_SEC;
643 tmp1 -= correctionPerGOF * GOF_PER_SEC;
644 correctionPerSec = tmp1;
645
646 {
647 struct dsp_src_task_scb src_task_scb = {
648 0x0028,0x00c8,
649 0x5555,0x0000,
650 0x0000,0x0000,
651 src_buffer_addr,1,
652 correctionPerGOF,correctionPerSec,
653 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
654 0x0000,src_delay_buffer_addr,
655 0x0,
656 0x080,(src_delay_buffer_addr + (24 * 4)),
657 0,0, /* next_scb, sub_list_ptr */
658 0,0, /* entry, this_spb */
659 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
660 src_buffer_addr << 0x10,
661 phiIncr,
662 {
663 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left,
664 0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left
665 }
666 };
667
668 if (ins->s16_up == NULL) {
669 ins->s16_up = cs46xx_dsp_lookup_symbol (chip,"S16_UPSRC",
670 SYMBOL_CODE);
671
672 if (ins->s16_up == NULL) {
673 snd_printk (KERN_ERR "dsp_spos: symbol S16_UPSRC not found\n");
674 return NULL;
675 }
676 }
677
678 /* clear buffers */
679 _dsp_clear_sample_buffer (chip,src_buffer_addr,8);
680 _dsp_clear_sample_buffer (chip,src_delay_buffer_addr,32);
681
682 if (pass_through) {
683 /* wont work with any other rate than
684 the native DSP rate */
685 snd_BUG_ON(rate != 48000);
686
687 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
688 dest,"DMAREADER",parent_scb,
689 scb_child_type);
690 } else {
691 scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
692 dest,ins->s16_up,parent_scb,
693 scb_child_type);
694 }
695
696
697 }
698
699 return scb;
700 }
701
702 #if 0 /* not used */
703 struct dsp_scb_descriptor *
704 cs46xx_dsp_create_filter_scb(struct snd_cs46xx * chip, char * scb_name,
705 u16 buffer_addr, u32 dest,
706 struct dsp_scb_descriptor * parent_scb,
707 int scb_child_type) {
708 struct dsp_scb_descriptor * scb;
709
710 struct dsp_filter_scb filter_scb = {
711 .a0_right = 0x41a9,
712 .a0_left = 0x41a9,
713 .a1_right = 0xb8e4,
714 .a1_left = 0xb8e4,
715 .a2_right = 0x3e55,
716 .a2_left = 0x3e55,
717
718 .filter_unused3 = 0x0000,
719 .filter_unused2 = 0x0000,
720
721 .output_buf_ptr = buffer_addr,
722 .init = 0x000,
723
724 .prev_sample_output1 = 0x00000000,
725 .prev_sample_output2 = 0x00000000,
726
727 .prev_sample_input1 = 0x00000000,
728 .prev_sample_input2 = 0x00000000,
729
730 .next_scb_ptr = 0x0000,
731 .sub_list_ptr = 0x0000,
732
733 .entry_point = 0x0000,
734 .spb_ptr = 0x0000,
735
736 .b0_right = 0x0e38,
737 .b0_left = 0x0e38,
738 .b1_right = 0x1c71,
739 .b1_left = 0x1c71,
740 .b2_right = 0x0e38,
741 .b2_left = 0x0e38,
742 };
743
744
745 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&filter_scb,
746 dest,"FILTERTASK",parent_scb,
747 scb_child_type);
748
749 return scb;
750 }
751 #endif /* not used */
752
753 struct dsp_scb_descriptor *
754 cs46xx_dsp_create_mix_only_scb(struct snd_cs46xx * chip, char * scb_name,
755 u16 mix_buffer_addr, u32 dest,
756 struct dsp_scb_descriptor * parent_scb,
757 int scb_child_type)
758 {
759 struct dsp_scb_descriptor * scb;
760
761 struct dsp_mix_only_scb master_mix_scb = {
762 /* 0 */ { 0,
763 /* 1 */ 0,
764 /* 2 */ mix_buffer_addr,
765 /* 3 */ 0
766 /* */ },
767 {
768 /* 4 */ 0,
769 /* 5 */ 0,
770 /* 6 */ 0,
771 /* 7 */ 0,
772 /* 8 */ 0x00000080
773 },
774 /* 9 */ 0,0,
775 /* A */ 0,0,
776 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
777 /* C */ (mix_buffer_addr + (16 * 4)) << 0x10,
778 /* D */ 0,
779 {
780 /* E */ 0x8000,0x8000,
781 /* F */ 0x8000,0x8000
782 }
783 };
784
785
786 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&master_mix_scb,
787 dest,"S16_MIX",parent_scb,
788 scb_child_type);
789 return scb;
790 }
791
792
793 struct dsp_scb_descriptor *
794 cs46xx_dsp_create_mix_to_ostream_scb(struct snd_cs46xx * chip, char * scb_name,
795 u16 mix_buffer_addr, u16 writeback_spb, u32 dest,
796 struct dsp_scb_descriptor * parent_scb,
797 int scb_child_type)
798 {
799 struct dsp_scb_descriptor * scb;
800
801 struct dsp_mix2_ostream_scb mix2_ostream_scb = {
802 /* Basic (non scatter/gather) DMA requestor (4 ints) */
803 {
804 DMA_RQ_C1_SOURCE_MOD64 +
805 DMA_RQ_C1_DEST_ON_HOST +
806 DMA_RQ_C1_DEST_MOD1024 +
807 DMA_RQ_C1_WRITEBACK_SRC_FLAG +
808 DMA_RQ_C1_WRITEBACK_DEST_FLAG +
809 15,
810
811 DMA_RQ_C2_AC_NONE +
812 DMA_RQ_C2_SIGNAL_DEST_PINGPONG +
813
814 CS46XX_DSP_CAPTURE_CHANNEL,
815 DMA_RQ_SD_SP_SAMPLE_ADDR +
816 mix_buffer_addr,
817 0x0
818 },
819
820 { 0, 0, 0, 0, 0, },
821 0,0,
822 0,writeback_spb,
823
824 RSCONFIG_DMA_ENABLE +
825 (19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) +
826
827 ((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) +
828 RSCONFIG_DMA_TO_HOST +
829 RSCONFIG_SAMPLE_16STEREO +
830 RSCONFIG_MODULO_64,
831 (mix_buffer_addr + (32 * 4)) << 0x10,
832 1,0,
833 0x0001,0x0080,
834 0xFFFF,0
835 };
836
837
838 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&mix2_ostream_scb,
839
840 dest,"S16_MIX_TO_OSTREAM",parent_scb,
841 scb_child_type);
842
843 return scb;
844 }
845
846
847 struct dsp_scb_descriptor *
848 cs46xx_dsp_create_vari_decimate_scb(struct snd_cs46xx * chip,char * scb_name,
849 u16 vari_buffer_addr0,
850 u16 vari_buffer_addr1,
851 u32 dest,
852 struct dsp_scb_descriptor * parent_scb,
853 int scb_child_type)
854 {
855
856 struct dsp_scb_descriptor * scb;
857
858 struct dsp_vari_decimate_scb vari_decimate_scb = {
859 0x0028,0x00c8,
860 0x5555,0x0000,
861 0x0000,0x0000,
862 vari_buffer_addr0,vari_buffer_addr1,
863
864 0x0028,0x00c8,
865 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256,
866
867 0xFF800000,
868 0,
869 0x0080,vari_buffer_addr1 + (25 * 4),
870
871 0,0,
872 0,0,
873
874 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
875 vari_buffer_addr0 << 0x10,
876 0x04000000,
877 {
878 0x8000,0x8000,
879 0xFFFF,0xFFFF
880 }
881 };
882
883 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&vari_decimate_scb,
884 dest,"VARIDECIMATE",parent_scb,
885 scb_child_type);
886
887 return scb;
888 }
889
890
891 static struct dsp_scb_descriptor *
892 cs46xx_dsp_create_pcm_serial_input_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
893 struct dsp_scb_descriptor * input_scb,
894 struct dsp_scb_descriptor * parent_scb,
895 int scb_child_type)
896 {
897
898 struct dsp_scb_descriptor * scb;
899
900
901 struct dsp_pcm_serial_input_scb pcm_serial_input_scb = {
902 { 0,
903 0,
904 0,
905 0
906 },
907 {
908 0,
909 0,
910 0,
911 0,
912 0
913 },
914
915 0,0,
916 0,0,
917
918 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_16,
919 0,
920 /* 0xD */ 0,input_scb->address,
921 {
922 /* 0xE */ 0x8000,0x8000,
923 /* 0xF */ 0x8000,0x8000
924 }
925 };
926
927 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_serial_input_scb,
928 dest,"PCMSERIALINPUTTASK",parent_scb,
929 scb_child_type);
930 return scb;
931 }
932
933
934 static struct dsp_scb_descriptor *
935 cs46xx_dsp_create_asynch_fg_tx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
936 u16 hfg_scb_address,
937 u16 asynch_buffer_address,
938 struct dsp_scb_descriptor * parent_scb,
939 int scb_child_type)
940 {
941
942 struct dsp_scb_descriptor * scb;
943
944 struct dsp_asynch_fg_tx_scb asynch_fg_tx_scb = {
945 0xfc00,0x03ff, /* Prototype sample buffer size of 256 dwords */
946 0x0058,0x0028, /* Min Delta 7 dwords == 28 bytes */
947 /* : Max delta 25 dwords == 100 bytes */
948 0,hfg_scb_address, /* Point to HFG task SCB */
949 0,0, /* Initialize current Delta and Consumer ptr adjustment count */
950 0, /* Initialize accumulated Phi to 0 */
951 0,0x2aab, /* Const 1/3 */
952
953 {
954 0, /* Define the unused elements */
955 0,
956 0
957 },
958
959 0,0,
960 0,dest + AFGTxAccumPhi,
961
962 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256, /* Stereo, 256 dword */
963 (asynch_buffer_address) << 0x10, /* This should be automagically synchronized
964 to the producer pointer */
965
966 /* There is no correct initial value, it will depend upon the detected
967 rate etc */
968 0x18000000, /* Phi increment for approx 32k operation */
969 0x8000,0x8000, /* Volume controls are unused at this time */
970 0x8000,0x8000
971 };
972
973 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_tx_scb,
974 dest,"ASYNCHFGTXCODE",parent_scb,
975 scb_child_type);
976
977 return scb;
978 }
979
980
981 struct dsp_scb_descriptor *
982 cs46xx_dsp_create_asynch_fg_rx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
983 u16 hfg_scb_address,
984 u16 asynch_buffer_address,
985 struct dsp_scb_descriptor * parent_scb,
986 int scb_child_type)
987 {
988 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
989 struct dsp_scb_descriptor * scb;
990
991 struct dsp_asynch_fg_rx_scb asynch_fg_rx_scb = {
992 0xfe00,0x01ff, /* Prototype sample buffer size of 128 dwords */
993 0x0064,0x001c, /* Min Delta 7 dwords == 28 bytes */
994 /* : Max delta 25 dwords == 100 bytes */
995 0,hfg_scb_address, /* Point to HFG task SCB */
996 0,0, /* Initialize current Delta and Consumer ptr adjustment count */
997 {
998 0, /* Define the unused elements */
999 0,
1000 0,
1001 0,
1002 0
1003 },
1004
1005 0,0,
1006 0,dest,
1007
1008 RSCONFIG_MODULO_128 |
1009 RSCONFIG_SAMPLE_16STEREO, /* Stereo, 128 dword */
1010 ( (asynch_buffer_address + (16 * 4)) << 0x10), /* This should be automagically
1011 synchrinized to the producer pointer */
1012
1013 /* There is no correct initial value, it will depend upon the detected
1014 rate etc */
1015 0x18000000,
1016
1017 /* Set IEC958 input volume */
1018 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
1019 0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
1020 };
1021
1022 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_rx_scb,
1023 dest,"ASYNCHFGRXCODE",parent_scb,
1024 scb_child_type);
1025
1026 return scb;
1027 }
1028
1029
1030 #if 0 /* not used */
1031 struct dsp_scb_descriptor *
1032 cs46xx_dsp_create_output_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1033 u16 snoop_buffer_address,
1034 struct dsp_scb_descriptor * snoop_scb,
1035 struct dsp_scb_descriptor * parent_scb,
1036 int scb_child_type)
1037 {
1038
1039 struct dsp_scb_descriptor * scb;
1040
1041 struct dsp_output_snoop_scb output_snoop_scb = {
1042 { 0, /* not used. Zero */
1043 0,
1044 0,
1045 0,
1046 },
1047 {
1048 0, /* not used. Zero */
1049 0,
1050 0,
1051 0,
1052 0
1053 },
1054
1055 0,0,
1056 0,0,
1057
1058 RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1059 snoop_buffer_address << 0x10,
1060 0,0,
1061 0,
1062 0,snoop_scb->address
1063 };
1064
1065 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&output_snoop_scb,
1066 dest,"OUTPUTSNOOP",parent_scb,
1067 scb_child_type);
1068 return scb;
1069 }
1070 #endif /* not used */
1071
1072
1073 struct dsp_scb_descriptor *
1074 cs46xx_dsp_create_spio_write_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1075 struct dsp_scb_descriptor * parent_scb,
1076 int scb_child_type)
1077 {
1078 struct dsp_scb_descriptor * scb;
1079
1080 struct dsp_spio_write_scb spio_write_scb = {
1081 0,0, /* SPIOWAddress2:SPIOWAddress1; */
1082 0, /* SPIOWData1; */
1083 0, /* SPIOWData2; */
1084 0,0, /* SPIOWAddress4:SPIOWAddress3; */
1085 0, /* SPIOWData3; */
1086 0, /* SPIOWData4; */
1087 0,0, /* SPIOWDataPtr:Unused1; */
1088 { 0,0 }, /* Unused2[2]; */
1089
1090 0,0, /* SPIOWChildPtr:SPIOWSiblingPtr; */
1091 0,0, /* SPIOWThisPtr:SPIOWEntryPoint; */
1092
1093 {
1094 0,
1095 0,
1096 0,
1097 0,
1098 0 /* Unused3[5]; */
1099 }
1100 };
1101
1102 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&spio_write_scb,
1103 dest,"SPIOWRITE",parent_scb,
1104 scb_child_type);
1105
1106 return scb;
1107 }
1108
1109 struct dsp_scb_descriptor *
1110 cs46xx_dsp_create_magic_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
1111 u16 snoop_buffer_address,
1112 struct dsp_scb_descriptor * snoop_scb,
1113 struct dsp_scb_descriptor * parent_scb,
1114 int scb_child_type)
1115 {
1116 struct dsp_scb_descriptor * scb;
1117
1118 struct dsp_magic_snoop_task magic_snoop_scb = {
1119 /* 0 */ 0, /* i0 */
1120 /* 1 */ 0, /* i1 */
1121 /* 2 */ snoop_buffer_address << 0x10,
1122 /* 3 */ 0,snoop_scb->address,
1123 /* 4 */ 0, /* i3 */
1124 /* 5 */ 0, /* i4 */
1125 /* 6 */ 0, /* i5 */
1126 /* 7 */ 0, /* i6 */
1127 /* 8 */ 0, /* i7 */
1128 /* 9 */ 0,0, /* next_scb, sub_list_ptr */
1129 /* A */ 0,0, /* entry_point, this_ptr */
1130 /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1131 /* C */ snoop_buffer_address << 0x10,
1132 /* D */ 0,
1133 /* E */ { 0x8000,0x8000,
1134 /* F */ 0xffff,0xffff
1135 }
1136 };
1137
1138 scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&magic_snoop_scb,
1139 dest,"MAGICSNOOPTASK",parent_scb,
1140 scb_child_type);
1141
1142 return scb;
1143 }
1144
1145 static struct dsp_scb_descriptor *
1146 find_next_free_scb (struct snd_cs46xx * chip, struct dsp_scb_descriptor * from)
1147 {
1148 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1149 struct dsp_scb_descriptor * scb = from;
1150
1151 while (scb->next_scb_ptr != ins->the_null_scb) {
1152 if (snd_BUG_ON(!scb->next_scb_ptr))
1153 return NULL;
1154
1155 scb = scb->next_scb_ptr;
1156 }
1157
1158 return scb;
1159 }
1160
1161 static u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = {
1162 0x0600, /* 1 */
1163 0x1500, /* 2 */
1164 0x1580, /* 3 */
1165 0x1600, /* 4 */
1166 0x1680, /* 5 */
1167 0x1700, /* 6 */
1168 0x1780, /* 7 */
1169 0x1800, /* 8 */
1170 0x1880, /* 9 */
1171 0x1900, /* 10 */
1172 0x1980, /* 11 */
1173 0x1A00, /* 12 */
1174 0x1A80, /* 13 */
1175 0x1B00, /* 14 */
1176 0x1B80, /* 15 */
1177 0x1C00, /* 16 */
1178 0x1C80, /* 17 */
1179 0x1D00, /* 18 */
1180 0x1D80, /* 19 */
1181 0x1E00, /* 20 */
1182 0x1E80, /* 21 */
1183 0x1F00, /* 22 */
1184 0x1F80, /* 23 */
1185 0x2000, /* 24 */
1186 0x2080, /* 25 */
1187 0x2100, /* 26 */
1188 0x2180, /* 27 */
1189 0x2200, /* 28 */
1190 0x2280, /* 29 */
1191 0x2300, /* 30 */
1192 0x2380, /* 31 */
1193 0x2400, /* 32 */
1194 };
1195
1196 static u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = {
1197 0x2B80,
1198 0x2BA0,
1199 0x2BC0,
1200 0x2BE0,
1201 0x2D00,
1202 0x2D20,
1203 0x2D40,
1204 0x2D60,
1205 0x2D80,
1206 0x2DA0,
1207 0x2DC0,
1208 0x2DE0,
1209 0x2E00,
1210 0x2E20
1211 };
1212
1213 static u32 src_delay_buffer_addr[DSP_MAX_SRC_NR] = {
1214 0x2480,
1215 0x2500,
1216 0x2580,
1217 0x2600,
1218 0x2680,
1219 0x2700,
1220 0x2780,
1221 0x2800,
1222 0x2880,
1223 0x2900,
1224 0x2980,
1225 0x2A00,
1226 0x2A80,
1227 0x2B00
1228 };
1229
1230 struct dsp_pcm_channel_descriptor *
1231 cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip,
1232 u32 sample_rate, void * private_data,
1233 u32 hw_dma_addr,
1234 int pcm_channel_id)
1235 {
1236 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1237 struct dsp_scb_descriptor * src_scb = NULL, * pcm_scb, * mixer_scb = NULL;
1238 struct dsp_scb_descriptor * src_parent_scb = NULL;
1239
1240 /* struct dsp_scb_descriptor * pcm_parent_scb; */
1241 char scb_name[DSP_MAX_SCB_NAME];
1242 int i, pcm_index = -1, insert_point, src_index = -1, pass_through = 0;
1243 unsigned long flags;
1244
1245 switch (pcm_channel_id) {
1246 case DSP_PCM_MAIN_CHANNEL:
1247 mixer_scb = ins->master_mix_scb;
1248 break;
1249 case DSP_PCM_REAR_CHANNEL:
1250 mixer_scb = ins->rear_mix_scb;
1251 break;
1252 case DSP_PCM_CENTER_LFE_CHANNEL:
1253 mixer_scb = ins->center_lfe_mix_scb;
1254 break;
1255 case DSP_PCM_S71_CHANNEL:
1256 /* TODO */
1257 snd_BUG();
1258 break;
1259 case DSP_IEC958_CHANNEL:
1260 if (snd_BUG_ON(!ins->asynch_tx_scb))
1261 return NULL;
1262 mixer_scb = ins->asynch_tx_scb;
1263
1264 /* if sample rate is set to 48khz we pass
1265 the Sample Rate Converted (which could
1266 alter the raw data stream ...) */
1267 if (sample_rate == 48000) {
1268 snd_printdd ("IEC958 pass through\n");
1269 /* Hack to bypass creating a new SRC */
1270 pass_through = 1;
1271 }
1272 break;
1273 default:
1274 snd_BUG();
1275 return NULL;
1276 }
1277 /* default sample rate is 44100 */
1278 if (!sample_rate) sample_rate = 44100;
1279
1280 /* search for a already created SRC SCB with the same sample rate */
1281 for (i = 0; i < DSP_MAX_PCM_CHANNELS &&
1282 (pcm_index == -1 || src_scb == NULL); ++i) {
1283
1284 /* virtual channel reserved
1285 for capture */
1286 if (i == CS46XX_DSP_CAPTURE_CHANNEL) continue;
1287
1288 if (ins->pcm_channels[i].active) {
1289 if (!src_scb &&
1290 ins->pcm_channels[i].sample_rate == sample_rate &&
1291 ins->pcm_channels[i].mixer_scb == mixer_scb) {
1292 src_scb = ins->pcm_channels[i].src_scb;
1293 ins->pcm_channels[i].src_scb->ref_count ++;
1294 src_index = ins->pcm_channels[i].src_slot;
1295 }
1296 } else if (pcm_index == -1) {
1297 pcm_index = i;
1298 }
1299 }
1300
1301 if (pcm_index == -1) {
1302 snd_printk (KERN_ERR "dsp_spos: no free PCM channel\n");
1303 return NULL;
1304 }
1305
1306 if (src_scb == NULL) {
1307 if (ins->nsrc_scb >= DSP_MAX_SRC_NR) {
1308 snd_printk(KERN_ERR "dsp_spos: to many SRC instances\n!");
1309 return NULL;
1310 }
1311
1312 /* find a free slot */
1313 for (i = 0; i < DSP_MAX_SRC_NR; ++i) {
1314 if (ins->src_scb_slots[i] == 0) {
1315 src_index = i;
1316 ins->src_scb_slots[i] = 1;
1317 break;
1318 }
1319 }
1320 if (snd_BUG_ON(src_index == -1))
1321 return NULL;
1322
1323 /* we need to create a new SRC SCB */
1324 if (mixer_scb->sub_list_ptr == ins->the_null_scb) {
1325 src_parent_scb = mixer_scb;
1326 insert_point = SCB_ON_PARENT_SUBLIST_SCB;
1327 } else {
1328 src_parent_scb = find_next_free_scb(chip,mixer_scb->sub_list_ptr);
1329 insert_point = SCB_ON_PARENT_NEXT_SCB;
1330 }
1331
1332 snprintf (scb_name,DSP_MAX_SCB_NAME,"SrcTask_SCB%d",src_index);
1333
1334 snd_printdd( "dsp_spos: creating SRC \"%s\"\n",scb_name);
1335 src_scb = cs46xx_dsp_create_src_task_scb(chip,scb_name,
1336 sample_rate,
1337 src_output_buffer_addr[src_index],
1338 src_delay_buffer_addr[src_index],
1339 /* 0x400 - 0x600 source SCBs */
1340 0x400 + (src_index * 0x10) ,
1341 src_parent_scb,
1342 insert_point,
1343 pass_through);
1344
1345 if (!src_scb) {
1346 snd_printk (KERN_ERR "dsp_spos: failed to create SRCtaskSCB\n");
1347 return NULL;
1348 }
1349
1350 /* cs46xx_dsp_set_src_sample_rate(chip,src_scb,sample_rate); */
1351
1352 ins->nsrc_scb ++;
1353 }
1354
1355
1356 snprintf (scb_name,DSP_MAX_SCB_NAME,"PCMReader_SCB%d",pcm_index);
1357
1358 snd_printdd( "dsp_spos: creating PCM \"%s\" (%d)\n",scb_name,
1359 pcm_channel_id);
1360
1361 pcm_scb = cs46xx_dsp_create_pcm_reader_scb(chip,scb_name,
1362 pcm_reader_buffer_addr[pcm_index],
1363 /* 0x200 - 400 PCMreader SCBs */
1364 (pcm_index * 0x10) + 0x200,
1365 pcm_index, /* virtual channel 0-31 */
1366 hw_dma_addr, /* pcm hw addr */
1367 NULL, /* parent SCB ptr */
1368 0 /* insert point */
1369 );
1370
1371 if (!pcm_scb) {
1372 snd_printk (KERN_ERR "dsp_spos: failed to create PCMreaderSCB\n");
1373 return NULL;
1374 }
1375
1376 spin_lock_irqsave(&chip->reg_lock, flags);
1377 ins->pcm_channels[pcm_index].sample_rate = sample_rate;
1378 ins->pcm_channels[pcm_index].pcm_reader_scb = pcm_scb;
1379 ins->pcm_channels[pcm_index].src_scb = src_scb;
1380 ins->pcm_channels[pcm_index].unlinked = 1;
1381 ins->pcm_channels[pcm_index].private_data = private_data;
1382 ins->pcm_channels[pcm_index].src_slot = src_index;
1383 ins->pcm_channels[pcm_index].active = 1;
1384 ins->pcm_channels[pcm_index].pcm_slot = pcm_index;
1385 ins->pcm_channels[pcm_index].mixer_scb = mixer_scb;
1386 ins->npcm_channels ++;
1387 spin_unlock_irqrestore(&chip->reg_lock, flags);
1388
1389 return (ins->pcm_channels + pcm_index);
1390 }
1391
1392 int cs46xx_dsp_pcm_channel_set_period (struct snd_cs46xx * chip,
1393 struct dsp_pcm_channel_descriptor * pcm_channel,
1394 int period_size)
1395 {
1396 u32 temp = snd_cs46xx_peek (chip,pcm_channel->pcm_reader_scb->address << 2);
1397 temp &= ~DMA_RQ_C1_SOURCE_SIZE_MASK;
1398
1399 switch (period_size) {
1400 case 2048:
1401 temp |= DMA_RQ_C1_SOURCE_MOD1024;
1402 break;
1403 case 1024:
1404 temp |= DMA_RQ_C1_SOURCE_MOD512;
1405 break;
1406 case 512:
1407 temp |= DMA_RQ_C1_SOURCE_MOD256;
1408 break;
1409 case 256:
1410 temp |= DMA_RQ_C1_SOURCE_MOD128;
1411 break;
1412 case 128:
1413 temp |= DMA_RQ_C1_SOURCE_MOD64;
1414 break;
1415 case 64:
1416 temp |= DMA_RQ_C1_SOURCE_MOD32;
1417 break;
1418 case 32:
1419 temp |= DMA_RQ_C1_SOURCE_MOD16;
1420 break;
1421 default:
1422 snd_printdd ("period size (%d) not supported by HW\n", period_size);
1423 return -EINVAL;
1424 }
1425
1426 snd_cs46xx_poke (chip,pcm_channel->pcm_reader_scb->address << 2,temp);
1427
1428 return 0;
1429 }
1430
1431 int cs46xx_dsp_pcm_ostream_set_period (struct snd_cs46xx * chip,
1432 int period_size)
1433 {
1434 u32 temp = snd_cs46xx_peek (chip,WRITEBACK_SCB_ADDR << 2);
1435 temp &= ~DMA_RQ_C1_DEST_SIZE_MASK;
1436
1437 switch (period_size) {
1438 case 2048:
1439 temp |= DMA_RQ_C1_DEST_MOD1024;
1440 break;
1441 case 1024:
1442 temp |= DMA_RQ_C1_DEST_MOD512;
1443 break;
1444 case 512:
1445 temp |= DMA_RQ_C1_DEST_MOD256;
1446 break;
1447 case 256:
1448 temp |= DMA_RQ_C1_DEST_MOD128;
1449 break;
1450 case 128:
1451 temp |= DMA_RQ_C1_DEST_MOD64;
1452 break;
1453 case 64:
1454 temp |= DMA_RQ_C1_DEST_MOD32;
1455 break;
1456 case 32:
1457 temp |= DMA_RQ_C1_DEST_MOD16;
1458 break;
1459 default:
1460 snd_printdd ("period size (%d) not supported by HW\n", period_size);
1461 return -EINVAL;
1462 }
1463
1464 snd_cs46xx_poke (chip,WRITEBACK_SCB_ADDR << 2,temp);
1465
1466 return 0;
1467 }
1468
1469 void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
1470 struct dsp_pcm_channel_descriptor * pcm_channel)
1471 {
1472 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1473 unsigned long flags;
1474
1475 if (snd_BUG_ON(!pcm_channel->active ||
1476 ins->npcm_channels <= 0 ||
1477 pcm_channel->src_scb->ref_count <= 0))
1478 return;
1479
1480 spin_lock_irqsave(&chip->reg_lock, flags);
1481 pcm_channel->unlinked = 1;
1482 pcm_channel->active = 0;
1483 pcm_channel->private_data = NULL;
1484 pcm_channel->src_scb->ref_count --;
1485 ins->npcm_channels --;
1486 spin_unlock_irqrestore(&chip->reg_lock, flags);
1487
1488 cs46xx_dsp_remove_scb(chip,pcm_channel->pcm_reader_scb);
1489
1490 if (!pcm_channel->src_scb->ref_count) {
1491 cs46xx_dsp_remove_scb(chip,pcm_channel->src_scb);
1492
1493 if (snd_BUG_ON(pcm_channel->src_slot < 0 ||
1494 pcm_channel->src_slot >= DSP_MAX_SRC_NR))
1495 return;
1496
1497 ins->src_scb_slots[pcm_channel->src_slot] = 0;
1498 ins->nsrc_scb --;
1499 }
1500 }
1501
1502 int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip,
1503 struct dsp_pcm_channel_descriptor * pcm_channel)
1504 {
1505 unsigned long flags;
1506
1507 if (snd_BUG_ON(!pcm_channel->active ||
1508 chip->dsp_spos_instance->npcm_channels <= 0))
1509 return -EIO;
1510
1511 spin_lock_irqsave(&chip->reg_lock, flags);
1512 if (pcm_channel->unlinked) {
1513 spin_unlock_irqrestore(&chip->reg_lock, flags);
1514 return -EIO;
1515 }
1516
1517 pcm_channel->unlinked = 1;
1518
1519 _dsp_unlink_scb (chip,pcm_channel->pcm_reader_scb);
1520 spin_unlock_irqrestore(&chip->reg_lock, flags);
1521
1522 return 0;
1523 }
1524
1525 int cs46xx_dsp_pcm_link (struct snd_cs46xx * chip,
1526 struct dsp_pcm_channel_descriptor * pcm_channel)
1527 {
1528 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1529 struct dsp_scb_descriptor * parent_scb;
1530 struct dsp_scb_descriptor * src_scb = pcm_channel->src_scb;
1531 unsigned long flags;
1532
1533 spin_lock_irqsave(&chip->reg_lock, flags);
1534
1535 if (pcm_channel->unlinked == 0) {
1536 spin_unlock_irqrestore(&chip->reg_lock, flags);
1537 return -EIO;
1538 }
1539
1540 parent_scb = src_scb;
1541
1542 if (src_scb->sub_list_ptr != ins->the_null_scb) {
1543 src_scb->sub_list_ptr->parent_scb_ptr = pcm_channel->pcm_reader_scb;
1544 pcm_channel->pcm_reader_scb->next_scb_ptr = src_scb->sub_list_ptr;
1545 }
1546
1547 src_scb->sub_list_ptr = pcm_channel->pcm_reader_scb;
1548
1549 snd_BUG_ON(pcm_channel->pcm_reader_scb->parent_scb_ptr);
1550 pcm_channel->pcm_reader_scb->parent_scb_ptr = parent_scb;
1551
1552 /* update SCB entry in DSP RAM */
1553 cs46xx_dsp_spos_update_scb(chip,pcm_channel->pcm_reader_scb);
1554
1555 /* update parent SCB entry */
1556 cs46xx_dsp_spos_update_scb(chip,parent_scb);
1557
1558 pcm_channel->unlinked = 0;
1559 spin_unlock_irqrestore(&chip->reg_lock, flags);
1560 return 0;
1561 }
1562
1563 struct dsp_scb_descriptor *
1564 cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * source,
1565 u16 addr, char * scb_name)
1566 {
1567 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1568 struct dsp_scb_descriptor * parent;
1569 struct dsp_scb_descriptor * pcm_input;
1570 int insert_point;
1571
1572 if (snd_BUG_ON(!ins->record_mixer_scb))
1573 return NULL;
1574
1575 if (ins->record_mixer_scb->sub_list_ptr != ins->the_null_scb) {
1576 parent = find_next_free_scb (chip,ins->record_mixer_scb->sub_list_ptr);
1577 insert_point = SCB_ON_PARENT_NEXT_SCB;
1578 } else {
1579 parent = ins->record_mixer_scb;
1580 insert_point = SCB_ON_PARENT_SUBLIST_SCB;
1581 }
1582
1583 pcm_input = cs46xx_dsp_create_pcm_serial_input_scb(chip,scb_name,addr,
1584 source, parent,
1585 insert_point);
1586
1587 return pcm_input;
1588 }
1589
1590 int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
1591 {
1592 unsigned long flags;
1593
1594 if (snd_BUG_ON(!src->parent_scb_ptr))
1595 return -EINVAL;
1596
1597 /* mute SCB */
1598 cs46xx_dsp_scb_set_volume (chip,src,0,0);
1599
1600 spin_lock_irqsave(&chip->reg_lock, flags);
1601 _dsp_unlink_scb (chip,src);
1602 spin_unlock_irqrestore(&chip->reg_lock, flags);
1603
1604 return 0;
1605 }
1606
1607 int cs46xx_src_link(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
1608 {
1609 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1610 struct dsp_scb_descriptor * parent_scb;
1611
1612 if (snd_BUG_ON(src->parent_scb_ptr))
1613 return -EINVAL;
1614 if (snd_BUG_ON(!ins->master_mix_scb))
1615 return -EINVAL;
1616
1617 if (ins->master_mix_scb->sub_list_ptr != ins->the_null_scb) {
1618 parent_scb = find_next_free_scb (chip,ins->master_mix_scb->sub_list_ptr);
1619 parent_scb->next_scb_ptr = src;
1620 } else {
1621 parent_scb = ins->master_mix_scb;
1622 parent_scb->sub_list_ptr = src;
1623 }
1624
1625 src->parent_scb_ptr = parent_scb;
1626
1627 /* update entry in DSP RAM */
1628 cs46xx_dsp_spos_update_scb(chip,parent_scb);
1629
1630 return 0;
1631 }
1632
1633 int cs46xx_dsp_enable_spdif_out (struct snd_cs46xx *chip)
1634 {
1635 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1636
1637 if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
1638 cs46xx_dsp_enable_spdif_hw (chip);
1639 }
1640
1641 /* dont touch anything if SPDIF is open */
1642 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
1643 /* when cs46xx_iec958_post_close(...) is called it
1644 will call this function if necessary depending on
1645 this bit */
1646 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1647
1648 return -EBUSY;
1649 }
1650
1651 if (snd_BUG_ON(ins->asynch_tx_scb))
1652 return -EINVAL;
1653 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr !=
1654 ins->the_null_scb))
1655 return -EINVAL;
1656
1657 /* reset output snooper sample buffer pointer */
1658 snd_cs46xx_poke (chip, (ins->ref_snoop_scb->address + 2) << 2,
1659 (OUTPUT_SNOOP_BUFFER + 0x10) << 0x10 );
1660
1661 /* The asynch. transfer task */
1662 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
1663 SPDIFO_SCB_INST,
1664 SPDIFO_IP_OUTPUT_BUFFER1,
1665 ins->master_mix_scb,
1666 SCB_ON_PARENT_NEXT_SCB);
1667 if (!ins->asynch_tx_scb) return -ENOMEM;
1668
1669 ins->spdif_pcm_input_scb = cs46xx_dsp_create_pcm_serial_input_scb(chip,"PCMSerialInput_II",
1670 PCMSERIALINII_SCB_ADDR,
1671 ins->ref_snoop_scb,
1672 ins->asynch_tx_scb,
1673 SCB_ON_PARENT_SUBLIST_SCB);
1674
1675
1676 if (!ins->spdif_pcm_input_scb) return -ENOMEM;
1677
1678 /* monitor state */
1679 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1680
1681 return 0;
1682 }
1683
1684 int cs46xx_dsp_disable_spdif_out (struct snd_cs46xx *chip)
1685 {
1686 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1687
1688 /* dont touch anything if SPDIF is open */
1689 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
1690 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1691 return -EBUSY;
1692 }
1693
1694 /* check integrety */
1695 if (snd_BUG_ON(!ins->asynch_tx_scb))
1696 return -EINVAL;
1697 if (snd_BUG_ON(!ins->spdif_pcm_input_scb))
1698 return -EINVAL;
1699 if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != ins->asynch_tx_scb))
1700 return -EINVAL;
1701 if (snd_BUG_ON(ins->asynch_tx_scb->parent_scb_ptr !=
1702 ins->master_mix_scb))
1703 return -EINVAL;
1704
1705 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
1706 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
1707
1708 ins->spdif_pcm_input_scb = NULL;
1709 ins->asynch_tx_scb = NULL;
1710
1711 /* clear buffer to prevent any undesired noise */
1712 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
1713
1714 /* monitor state */
1715 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1716
1717
1718 return 0;
1719 }
1720
1721 int cs46xx_iec958_pre_open (struct snd_cs46xx *chip)
1722 {
1723 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1724
1725 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
1726 /* remove AsynchFGTxSCB and and PCMSerialInput_II */
1727 cs46xx_dsp_disable_spdif_out (chip);
1728
1729 /* save state */
1730 ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
1731 }
1732
1733 /* if not enabled already */
1734 if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
1735 cs46xx_dsp_enable_spdif_hw (chip);
1736 }
1737
1738 /* Create the asynch. transfer task for playback */
1739 ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
1740 SPDIFO_SCB_INST,
1741 SPDIFO_IP_OUTPUT_BUFFER1,
1742 ins->master_mix_scb,
1743 SCB_ON_PARENT_NEXT_SCB);
1744
1745
1746 /* set spdif channel status value for streaming */
1747 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_stream);
1748
1749 ins->spdif_status_out |= DSP_SPDIF_STATUS_PLAYBACK_OPEN;
1750
1751 return 0;
1752 }
1753
1754 int cs46xx_iec958_post_close (struct snd_cs46xx *chip)
1755 {
1756 struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1757
1758 if (snd_BUG_ON(!ins->asynch_tx_scb))
1759 return -EINVAL;
1760
1761 ins->spdif_status_out &= ~DSP_SPDIF_STATUS_PLAYBACK_OPEN;
1762
1763 /* restore settings */
1764 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);
1765
1766 /* deallocate stuff */
1767 if (ins->spdif_pcm_input_scb != NULL) {
1768 cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
1769 ins->spdif_pcm_input_scb = NULL;
1770 }
1771
1772 cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
1773 ins->asynch_tx_scb = NULL;
1774
1775 /* clear buffer to prevent any undesired noise */
1776 _dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
1777
1778 /* restore state */
1779 if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
1780 cs46xx_dsp_enable_spdif_out (chip);
1781 }
1782
1783 return 0;
1784 }