xref: /openbmc/linux/sound/pci/cs46xx/dsp_spos.c (revision 63705da3)
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/vmalloc.h>
16 #include <linux/mutex.h>
17 
18 #include <sound/core.h>
19 #include <sound/control.h>
20 #include <sound/info.h>
21 #include <sound/asoundef.h>
22 #include "cs46xx.h"
23 
24 #include "cs46xx_lib.h"
25 #include "dsp_spos.h"
26 
27 static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
28 				  struct dsp_scb_descriptor * fg_entry);
29 
30 static const enum wide_opcode wide_opcodes[] = {
31 	WIDE_FOR_BEGIN_LOOP,
32 	WIDE_FOR_BEGIN_LOOP2,
33 	WIDE_COND_GOTO_ADDR,
34 	WIDE_COND_GOTO_CALL,
35 	WIDE_TBEQ_COND_GOTO_ADDR,
36 	WIDE_TBEQ_COND_CALL_ADDR,
37 	WIDE_TBEQ_NCOND_GOTO_ADDR,
38 	WIDE_TBEQ_NCOND_CALL_ADDR,
39 	WIDE_TBEQ_COND_GOTO1_ADDR,
40 	WIDE_TBEQ_COND_CALL1_ADDR,
41 	WIDE_TBEQ_NCOND_GOTOI_ADDR,
42 	WIDE_TBEQ_NCOND_CALL1_ADDR
43 };
44 
45 static int shadow_and_reallocate_code (struct snd_cs46xx * chip, u32 * data, u32 size,
46 				       u32 overlay_begin_address)
47 {
48 	unsigned int i = 0, j, nreallocated = 0;
49 	u32 hival,loval,address;
50 	u32 mop_operands,mop_type,wide_op;
51 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
52 
53 	if (snd_BUG_ON(size %2))
54 		return -EINVAL;
55 
56 	while (i < size) {
57 		loval = data[i++];
58 		hival = data[i++];
59 
60 		if (ins->code.offset > 0) {
61 			mop_operands = (hival >> 6) & 0x03fff;
62 			mop_type = mop_operands >> 10;
63 
64 			/* check for wide type instruction */
65 			if (mop_type == 0 &&
66 			    (mop_operands & WIDE_LADD_INSTR_MASK) == 0 &&
67 			    (mop_operands & WIDE_INSTR_MASK) != 0) {
68 				wide_op = loval & 0x7f;
69 				for (j = 0;j < ARRAY_SIZE(wide_opcodes); ++j) {
70 					if (wide_opcodes[j] == wide_op) {
71 						/* need to reallocate instruction */
72 						address  = (hival & 0x00FFF) << 5;
73 						address |=  loval >> 15;
74 
75 						dev_dbg(chip->card->dev,
76 							"handle_wideop[1]: %05x:%05x addr %04x\n",
77 							hival, loval, address);
78 
79 						if ( !(address & 0x8000) ) {
80 							address += (ins->code.offset / 2) - overlay_begin_address;
81 						} else {
82 							dev_dbg(chip->card->dev,
83 								"handle_wideop[1]: ROM symbol not reallocated\n");
84 						}
85 
86 						hival &= 0xFF000;
87 						loval &= 0x07FFF;
88 
89 						hival |= ( (address >> 5)  & 0x00FFF);
90 						loval |= ( (address << 15) & 0xF8000);
91 
92 						address  = (hival & 0x00FFF) << 5;
93 						address |=  loval >> 15;
94 
95 						dev_dbg(chip->card->dev,
96 							"handle_wideop:[2] %05x:%05x addr %04x\n",
97 							hival, loval, address);
98 						nreallocated++;
99 					} /* wide_opcodes[j] == wide_op */
100 				} /* for */
101 			} /* mod_type == 0 ... */
102 		} /* ins->code.offset > 0 */
103 
104 		ins->code.data[ins->code.size++] = loval;
105 		ins->code.data[ins->code.size++] = hival;
106 	}
107 
108 	dev_dbg(chip->card->dev,
109 		"dsp_spos: %d instructions reallocated\n", nreallocated);
110 	return nreallocated;
111 }
112 
113 static struct dsp_segment_desc * get_segment_desc (struct dsp_module_desc * module, int seg_type)
114 {
115 	int i;
116 	for (i = 0;i < module->nsegments; ++i) {
117 		if (module->segments[i].segment_type == seg_type) {
118 			return (module->segments + i);
119 		}
120 	}
121 
122 	return NULL;
123 };
124 
125 static int find_free_symbol_index (struct dsp_spos_instance * ins)
126 {
127 	int index = ins->symbol_table.nsymbols,i;
128 
129 	for (i = ins->symbol_table.highest_frag_index; i < ins->symbol_table.nsymbols; ++i) {
130 		if (ins->symbol_table.symbols[i].deleted) {
131 			index = i;
132 			break;
133 		}
134 	}
135 
136 	return index;
137 }
138 
139 static int add_symbols (struct snd_cs46xx * chip, struct dsp_module_desc * module)
140 {
141 	int i;
142 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
143 
144 	if (module->symbol_table.nsymbols > 0) {
145 		if (!strcmp(module->symbol_table.symbols[0].symbol_name, "OVERLAYBEGINADDRESS") &&
146 		    module->symbol_table.symbols[0].symbol_type == SYMBOL_CONSTANT ) {
147 			module->overlay_begin_address = module->symbol_table.symbols[0].address;
148 		}
149 	}
150 
151 	for (i = 0;i < module->symbol_table.nsymbols; ++i) {
152 		if (ins->symbol_table.nsymbols == (DSP_MAX_SYMBOLS - 1)) {
153 			dev_err(chip->card->dev,
154 				"dsp_spos: symbol table is full\n");
155 			return -ENOMEM;
156 		}
157 
158 
159 		if (cs46xx_dsp_lookup_symbol(chip,
160 					     module->symbol_table.symbols[i].symbol_name,
161 					     module->symbol_table.symbols[i].symbol_type) == NULL) {
162 
163 			ins->symbol_table.symbols[ins->symbol_table.nsymbols] = module->symbol_table.symbols[i];
164 			ins->symbol_table.symbols[ins->symbol_table.nsymbols].address += ((ins->code.offset / 2) - module->overlay_begin_address);
165 			ins->symbol_table.symbols[ins->symbol_table.nsymbols].module = module;
166 			ins->symbol_table.symbols[ins->symbol_table.nsymbols].deleted = 0;
167 
168 			if (ins->symbol_table.nsymbols > ins->symbol_table.highest_frag_index)
169 				ins->symbol_table.highest_frag_index = ins->symbol_table.nsymbols;
170 
171 			ins->symbol_table.nsymbols++;
172 		} else {
173 #if 0
174 			dev_dbg(chip->card->dev,
175 				"dsp_spos: symbol <%s> duplicated, probably nothing wrong with that (Cirrus?)\n",
176 				module->symbol_table.symbols[i].symbol_name); */
177 #endif
178 		}
179 	}
180 
181 	return 0;
182 }
183 
184 static struct dsp_symbol_entry *
185 add_symbol (struct snd_cs46xx * chip, char * symbol_name, u32 address, int type)
186 {
187 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
188 	struct dsp_symbol_entry * symbol = NULL;
189 	int index;
190 
191 	if (ins->symbol_table.nsymbols == (DSP_MAX_SYMBOLS - 1)) {
192 		dev_err(chip->card->dev, "dsp_spos: symbol table is full\n");
193 		return NULL;
194 	}
195 
196 	if (cs46xx_dsp_lookup_symbol(chip,
197 				     symbol_name,
198 				     type) != NULL) {
199 		dev_err(chip->card->dev,
200 			"dsp_spos: symbol <%s> duplicated\n", symbol_name);
201 		return NULL;
202 	}
203 
204 	index = find_free_symbol_index (ins);
205 
206 	strcpy (ins->symbol_table.symbols[index].symbol_name, symbol_name);
207 	ins->symbol_table.symbols[index].address = address;
208 	ins->symbol_table.symbols[index].symbol_type = type;
209 	ins->symbol_table.symbols[index].module = NULL;
210 	ins->symbol_table.symbols[index].deleted = 0;
211 	symbol = (ins->symbol_table.symbols + index);
212 
213 	if (index > ins->symbol_table.highest_frag_index)
214 		ins->symbol_table.highest_frag_index = index;
215 
216 	if (index == ins->symbol_table.nsymbols)
217 		ins->symbol_table.nsymbols++; /* no frag. in list */
218 
219 	return symbol;
220 }
221 
222 struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip)
223 {
224 	struct dsp_spos_instance * ins = kzalloc(sizeof(struct dsp_spos_instance), GFP_KERNEL);
225 
226 	if (ins == NULL)
227 		return NULL;
228 
229 	/* better to use vmalloc for this big table */
230 	ins->symbol_table.symbols =
231 		vmalloc(array_size(DSP_MAX_SYMBOLS,
232 				   sizeof(struct dsp_symbol_entry)));
233 	ins->code.data = kmalloc(DSP_CODE_BYTE_SIZE, GFP_KERNEL);
234 	ins->modules = kmalloc_array(DSP_MAX_MODULES,
235 				     sizeof(struct dsp_module_desc),
236 				     GFP_KERNEL);
237 	if (!ins->symbol_table.symbols || !ins->code.data || !ins->modules) {
238 		cs46xx_dsp_spos_destroy(chip);
239 		goto error;
240 	}
241 	ins->symbol_table.nsymbols = 0;
242 	ins->symbol_table.highest_frag_index = 0;
243 	ins->code.offset = 0;
244 	ins->code.size = 0;
245 	ins->nscb = 0;
246 	ins->ntask = 0;
247 	ins->nmodules = 0;
248 
249 	/* default SPDIF input sample rate
250 	   to 48000 khz */
251 	ins->spdif_in_sample_rate = 48000;
252 
253 	/* maximize volume */
254 	ins->dac_volume_right = 0x8000;
255 	ins->dac_volume_left = 0x8000;
256 	ins->spdif_input_volume_right = 0x8000;
257 	ins->spdif_input_volume_left = 0x8000;
258 
259 	/* set left and right validity bits and
260 	   default channel status */
261 	ins->spdif_csuv_default =
262 		ins->spdif_csuv_stream =
263 	 /* byte 0 */  ((unsigned int)_wrap_all_bits(  (SNDRV_PCM_DEFAULT_CON_SPDIF        & 0xff)) << 24) |
264 	 /* byte 1 */  ((unsigned int)_wrap_all_bits( ((SNDRV_PCM_DEFAULT_CON_SPDIF >> 8) & 0xff)) << 16) |
265 	 /* byte 3 */   (unsigned int)_wrap_all_bits(  (SNDRV_PCM_DEFAULT_CON_SPDIF >> 24) & 0xff) |
266 	 /* left and right validity bits */ (1 << 13) | (1 << 12);
267 
268 	return ins;
269 
270 error:
271 	kfree(ins->modules);
272 	kfree(ins->code.data);
273 	vfree(ins->symbol_table.symbols);
274 	kfree(ins);
275 	return NULL;
276 }
277 
278 void  cs46xx_dsp_spos_destroy (struct snd_cs46xx * chip)
279 {
280 	int i;
281 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
282 
283 	if (snd_BUG_ON(!ins))
284 		return;
285 
286 	mutex_lock(&chip->spos_mutex);
287 	for (i = 0; i < ins->nscb; ++i) {
288 		if (ins->scbs[i].deleted) continue;
289 
290 		cs46xx_dsp_proc_free_scb_desc ( (ins->scbs + i) );
291 #ifdef CONFIG_PM_SLEEP
292 		kfree(ins->scbs[i].data);
293 #endif
294 	}
295 
296 	kfree(ins->code.data);
297 	vfree(ins->symbol_table.symbols);
298 	kfree(ins->modules);
299 	kfree(ins);
300 	mutex_unlock(&chip->spos_mutex);
301 }
302 
303 static int dsp_load_parameter(struct snd_cs46xx *chip,
304 			      struct dsp_segment_desc *parameter)
305 {
306 	u32 doffset, dsize;
307 
308 	if (!parameter) {
309 		dev_dbg(chip->card->dev,
310 			"dsp_spos: module got no parameter segment\n");
311 		return 0;
312 	}
313 
314 	doffset = (parameter->offset * 4 + DSP_PARAMETER_BYTE_OFFSET);
315 	dsize   = parameter->size * 4;
316 
317 	dev_dbg(chip->card->dev,
318 		"dsp_spos: downloading parameter data to chip (%08x-%08x)\n",
319 		    doffset,doffset + dsize);
320 	if (snd_cs46xx_download (chip, parameter->data, doffset, dsize)) {
321 		dev_err(chip->card->dev,
322 			"dsp_spos: failed to download parameter data to DSP\n");
323 		return -EINVAL;
324 	}
325 	return 0;
326 }
327 
328 static int dsp_load_sample(struct snd_cs46xx *chip,
329 			   struct dsp_segment_desc *sample)
330 {
331 	u32 doffset, dsize;
332 
333 	if (!sample) {
334 		dev_dbg(chip->card->dev,
335 			"dsp_spos: module got no sample segment\n");
336 		return 0;
337 	}
338 
339 	doffset = (sample->offset * 4  + DSP_SAMPLE_BYTE_OFFSET);
340 	dsize   =  sample->size * 4;
341 
342 	dev_dbg(chip->card->dev,
343 		"dsp_spos: downloading sample data to chip (%08x-%08x)\n",
344 		    doffset,doffset + dsize);
345 
346 	if (snd_cs46xx_download (chip,sample->data,doffset,dsize)) {
347 		dev_err(chip->card->dev,
348 			"dsp_spos: failed to sample data to DSP\n");
349 		return -EINVAL;
350 	}
351 	return 0;
352 }
353 
354 int cs46xx_dsp_load_module (struct snd_cs46xx * chip, struct dsp_module_desc * module)
355 {
356 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
357 	struct dsp_segment_desc * code = get_segment_desc (module,SEGTYPE_SP_PROGRAM);
358 	u32 doffset, dsize;
359 	int err;
360 
361 	if (ins->nmodules == DSP_MAX_MODULES - 1) {
362 		dev_err(chip->card->dev,
363 			"dsp_spos: to many modules loaded into DSP\n");
364 		return -ENOMEM;
365 	}
366 
367 	dev_dbg(chip->card->dev,
368 		"dsp_spos: loading module %s into DSP\n", module->module_name);
369 
370 	if (ins->nmodules == 0) {
371 		dev_dbg(chip->card->dev, "dsp_spos: clearing parameter area\n");
372 		snd_cs46xx_clear_BA1(chip, DSP_PARAMETER_BYTE_OFFSET, DSP_PARAMETER_BYTE_SIZE);
373 	}
374 
375 	err = dsp_load_parameter(chip, get_segment_desc(module,
376 							SEGTYPE_SP_PARAMETER));
377 	if (err < 0)
378 		return err;
379 
380 	if (ins->nmodules == 0) {
381 		dev_dbg(chip->card->dev, "dsp_spos: clearing sample area\n");
382 		snd_cs46xx_clear_BA1(chip, DSP_SAMPLE_BYTE_OFFSET, DSP_SAMPLE_BYTE_SIZE);
383 	}
384 
385 	err = dsp_load_sample(chip, get_segment_desc(module,
386 						     SEGTYPE_SP_SAMPLE));
387 	if (err < 0)
388 		return err;
389 
390 	if (ins->nmodules == 0) {
391 		dev_dbg(chip->card->dev, "dsp_spos: clearing code area\n");
392 		snd_cs46xx_clear_BA1(chip, DSP_CODE_BYTE_OFFSET, DSP_CODE_BYTE_SIZE);
393 	}
394 
395 	if (code == NULL) {
396 		dev_dbg(chip->card->dev,
397 			"dsp_spos: module got no code segment\n");
398 	} else {
399 		if (ins->code.offset + code->size > DSP_CODE_BYTE_SIZE) {
400 			dev_err(chip->card->dev,
401 				"dsp_spos: no space available in DSP\n");
402 			return -ENOMEM;
403 		}
404 
405 		module->load_address = ins->code.offset;
406 		module->overlay_begin_address = 0x000;
407 
408 		/* if module has a code segment it must have
409 		   symbol table */
410 		if (snd_BUG_ON(!module->symbol_table.symbols))
411 			return -ENOMEM;
412 		if (add_symbols(chip,module)) {
413 			dev_err(chip->card->dev,
414 				"dsp_spos: failed to load symbol table\n");
415 			return -ENOMEM;
416 		}
417 
418 		doffset = (code->offset * 4 + ins->code.offset * 4 + DSP_CODE_BYTE_OFFSET);
419 		dsize   = code->size * 4;
420 		dev_dbg(chip->card->dev,
421 			"dsp_spos: downloading code to chip (%08x-%08x)\n",
422 			    doffset,doffset + dsize);
423 
424 		module->nfixups = shadow_and_reallocate_code(chip,code->data,code->size,module->overlay_begin_address);
425 
426 		if (snd_cs46xx_download (chip,(ins->code.data + ins->code.offset),doffset,dsize)) {
427 			dev_err(chip->card->dev,
428 				"dsp_spos: failed to download code to DSP\n");
429 			return -EINVAL;
430 		}
431 
432 		ins->code.offset += code->size;
433 	}
434 
435 	/* NOTE: module segments and symbol table must be
436 	   statically allocated. Case that module data is
437 	   not generated by the ospparser */
438 	ins->modules[ins->nmodules] = *module;
439 	ins->nmodules++;
440 
441 	return 0;
442 }
443 
444 struct dsp_symbol_entry *
445 cs46xx_dsp_lookup_symbol (struct snd_cs46xx * chip, char * symbol_name, int symbol_type)
446 {
447 	int i;
448 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
449 
450 	for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {
451 
452 		if (ins->symbol_table.symbols[i].deleted)
453 			continue;
454 
455 		if (!strcmp(ins->symbol_table.symbols[i].symbol_name,symbol_name) &&
456 		    ins->symbol_table.symbols[i].symbol_type == symbol_type) {
457 			return (ins->symbol_table.symbols + i);
458 		}
459 	}
460 
461 #if 0
462 	dev_err(chip->card->dev, "dsp_spos: symbol <%s> type %02x not found\n",
463 		symbol_name,symbol_type);
464 #endif
465 
466 	return NULL;
467 }
468 
469 
470 #ifdef CONFIG_SND_PROC_FS
471 static struct dsp_symbol_entry *
472 cs46xx_dsp_lookup_symbol_addr (struct snd_cs46xx * chip, u32 address, int symbol_type)
473 {
474 	int i;
475 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
476 
477 	for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {
478 
479 		if (ins->symbol_table.symbols[i].deleted)
480 			continue;
481 
482 		if (ins->symbol_table.symbols[i].address == address &&
483 		    ins->symbol_table.symbols[i].symbol_type == symbol_type) {
484 			return (ins->symbol_table.symbols + i);
485 		}
486 	}
487 
488 
489 	return NULL;
490 }
491 
492 
493 static void cs46xx_dsp_proc_symbol_table_read (struct snd_info_entry *entry,
494 					       struct snd_info_buffer *buffer)
495 {
496 	struct snd_cs46xx *chip = entry->private_data;
497 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
498 	int i;
499 
500 	snd_iprintf(buffer, "SYMBOLS:\n");
501 	for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {
502 		char *module_str = "system";
503 
504 		if (ins->symbol_table.symbols[i].deleted)
505 			continue;
506 
507 		if (ins->symbol_table.symbols[i].module != NULL) {
508 			module_str = ins->symbol_table.symbols[i].module->module_name;
509 		}
510 
511 
512 		snd_iprintf(buffer, "%04X <%02X> %s [%s]\n",
513 			    ins->symbol_table.symbols[i].address,
514 			    ins->symbol_table.symbols[i].symbol_type,
515 			    ins->symbol_table.symbols[i].symbol_name,
516 			    module_str);
517 	}
518 }
519 
520 
521 static void cs46xx_dsp_proc_modules_read (struct snd_info_entry *entry,
522 					  struct snd_info_buffer *buffer)
523 {
524 	struct snd_cs46xx *chip = entry->private_data;
525 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
526 	int i,j;
527 
528 	mutex_lock(&chip->spos_mutex);
529 	snd_iprintf(buffer, "MODULES:\n");
530 	for ( i = 0; i < ins->nmodules; ++i ) {
531 		snd_iprintf(buffer, "\n%s:\n", ins->modules[i].module_name);
532 		snd_iprintf(buffer, "   %d symbols\n", ins->modules[i].symbol_table.nsymbols);
533 		snd_iprintf(buffer, "   %d fixups\n", ins->modules[i].nfixups);
534 
535 		for (j = 0; j < ins->modules[i].nsegments; ++ j) {
536 			struct dsp_segment_desc * desc = (ins->modules[i].segments + j);
537 			snd_iprintf(buffer, "   segment %02x offset %08x size %08x\n",
538 				    desc->segment_type,desc->offset, desc->size);
539 		}
540 	}
541 	mutex_unlock(&chip->spos_mutex);
542 }
543 
544 static void cs46xx_dsp_proc_task_tree_read (struct snd_info_entry *entry,
545 					    struct snd_info_buffer *buffer)
546 {
547 	struct snd_cs46xx *chip = entry->private_data;
548 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
549 	int i, j, col;
550 	void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
551 
552 	mutex_lock(&chip->spos_mutex);
553 	snd_iprintf(buffer, "TASK TREES:\n");
554 	for ( i = 0; i < ins->ntask; ++i) {
555 		snd_iprintf(buffer,"\n%04x %s:\n",ins->tasks[i].address,ins->tasks[i].task_name);
556 
557 		for (col = 0,j = 0;j < ins->tasks[i].size; j++,col++) {
558 			u32 val;
559 			if (col == 4) {
560 				snd_iprintf(buffer,"\n");
561 				col = 0;
562 			}
563 			val = readl(dst + (ins->tasks[i].address + j) * sizeof(u32));
564 			snd_iprintf(buffer,"%08x ",val);
565 		}
566 	}
567 
568 	snd_iprintf(buffer,"\n");
569 	mutex_unlock(&chip->spos_mutex);
570 }
571 
572 static void cs46xx_dsp_proc_scb_read (struct snd_info_entry *entry,
573 				      struct snd_info_buffer *buffer)
574 {
575 	struct snd_cs46xx *chip = entry->private_data;
576 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
577 	int i;
578 
579 	mutex_lock(&chip->spos_mutex);
580 	snd_iprintf(buffer, "SCB's:\n");
581 	for ( i = 0; i < ins->nscb; ++i) {
582 		if (ins->scbs[i].deleted)
583 			continue;
584 		snd_iprintf(buffer,"\n%04x %s:\n\n",ins->scbs[i].address,ins->scbs[i].scb_name);
585 
586 		if (ins->scbs[i].parent_scb_ptr != NULL) {
587 			snd_iprintf(buffer,"parent [%s:%04x] ",
588 				    ins->scbs[i].parent_scb_ptr->scb_name,
589 				    ins->scbs[i].parent_scb_ptr->address);
590 		} else snd_iprintf(buffer,"parent [none] ");
591 
592 		snd_iprintf(buffer,"sub_list_ptr [%s:%04x]\nnext_scb_ptr [%s:%04x]  task_entry [%s:%04x]\n",
593 			    ins->scbs[i].sub_list_ptr->scb_name,
594 			    ins->scbs[i].sub_list_ptr->address,
595 			    ins->scbs[i].next_scb_ptr->scb_name,
596 			    ins->scbs[i].next_scb_ptr->address,
597 			    ins->scbs[i].task_entry->symbol_name,
598 			    ins->scbs[i].task_entry->address);
599 	}
600 
601 	snd_iprintf(buffer,"\n");
602 	mutex_unlock(&chip->spos_mutex);
603 }
604 
605 static void cs46xx_dsp_proc_parameter_dump_read (struct snd_info_entry *entry,
606 						 struct snd_info_buffer *buffer)
607 {
608 	struct snd_cs46xx *chip = entry->private_data;
609 	/*struct dsp_spos_instance * ins = chip->dsp_spos_instance; */
610 	unsigned int i, col = 0;
611 	void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
612 	struct dsp_symbol_entry * symbol;
613 
614 	for (i = 0;i < DSP_PARAMETER_BYTE_SIZE; i += sizeof(u32),col ++) {
615 		if (col == 4) {
616 			snd_iprintf(buffer,"\n");
617 			col = 0;
618 		}
619 
620 		symbol = cs46xx_dsp_lookup_symbol_addr(chip, i / sizeof(u32), SYMBOL_PARAMETER);
621 		if (symbol) {
622 			col = 0;
623 			snd_iprintf (buffer,"\n%s:\n",symbol->symbol_name);
624 		}
625 
626 		if (col == 0) {
627 			snd_iprintf(buffer, "%04X ", i / (unsigned int)sizeof(u32));
628 		}
629 
630 		snd_iprintf(buffer,"%08X ",readl(dst + i));
631 	}
632 }
633 
634 static void cs46xx_dsp_proc_sample_dump_read (struct snd_info_entry *entry,
635 					      struct snd_info_buffer *buffer)
636 {
637 	struct snd_cs46xx *chip = entry->private_data;
638 	int i,col = 0;
639 	void __iomem *dst = chip->region.idx[2].remap_addr;
640 
641 	snd_iprintf(buffer,"PCMREADER:\n");
642 	for (i = PCM_READER_BUF1;i < PCM_READER_BUF1 + 0x30; i += sizeof(u32),col ++) {
643 		if (col == 4) {
644 			snd_iprintf(buffer,"\n");
645 			col = 0;
646 		}
647 
648 		if (col == 0) {
649 			snd_iprintf(buffer, "%04X ",i);
650 		}
651 
652 		snd_iprintf(buffer,"%08X ",readl(dst + i));
653 	}
654 
655 	snd_iprintf(buffer,"\nMIX_SAMPLE_BUF1:\n");
656 
657 	col = 0;
658 	for (i = MIX_SAMPLE_BUF1;i < MIX_SAMPLE_BUF1 + 0x40; i += sizeof(u32),col ++) {
659 		if (col == 4) {
660 			snd_iprintf(buffer,"\n");
661 			col = 0;
662 		}
663 
664 		if (col == 0) {
665 			snd_iprintf(buffer, "%04X ",i);
666 		}
667 
668 		snd_iprintf(buffer,"%08X ",readl(dst + i));
669 	}
670 
671 	snd_iprintf(buffer,"\nSRC_TASK_SCB1:\n");
672 	col = 0;
673 	for (i = 0x2480 ; i < 0x2480 + 0x40 ; i += sizeof(u32),col ++) {
674 		if (col == 4) {
675 			snd_iprintf(buffer,"\n");
676 			col = 0;
677 		}
678 
679 		if (col == 0) {
680 			snd_iprintf(buffer, "%04X ",i);
681 		}
682 
683 		snd_iprintf(buffer,"%08X ",readl(dst + i));
684 	}
685 
686 
687 	snd_iprintf(buffer,"\nSPDIFO_BUFFER:\n");
688 	col = 0;
689 	for (i = SPDIFO_IP_OUTPUT_BUFFER1;i < SPDIFO_IP_OUTPUT_BUFFER1 + 0x30; i += sizeof(u32),col ++) {
690 		if (col == 4) {
691 			snd_iprintf(buffer,"\n");
692 			col = 0;
693 		}
694 
695 		if (col == 0) {
696 			snd_iprintf(buffer, "%04X ",i);
697 		}
698 
699 		snd_iprintf(buffer,"%08X ",readl(dst + i));
700 	}
701 
702 	snd_iprintf(buffer,"\n...\n");
703 	col = 0;
704 
705 	for (i = SPDIFO_IP_OUTPUT_BUFFER1+0xD0;i < SPDIFO_IP_OUTPUT_BUFFER1 + 0x110; i += sizeof(u32),col ++) {
706 		if (col == 4) {
707 			snd_iprintf(buffer,"\n");
708 			col = 0;
709 		}
710 
711 		if (col == 0) {
712 			snd_iprintf(buffer, "%04X ",i);
713 		}
714 
715 		snd_iprintf(buffer,"%08X ",readl(dst + i));
716 	}
717 
718 
719 	snd_iprintf(buffer,"\nOUTPUT_SNOOP:\n");
720 	col = 0;
721 	for (i = OUTPUT_SNOOP_BUFFER;i < OUTPUT_SNOOP_BUFFER + 0x40; i += sizeof(u32),col ++) {
722 		if (col == 4) {
723 			snd_iprintf(buffer,"\n");
724 			col = 0;
725 		}
726 
727 		if (col == 0) {
728 			snd_iprintf(buffer, "%04X ",i);
729 		}
730 
731 		snd_iprintf(buffer,"%08X ",readl(dst + i));
732 	}
733 
734 	snd_iprintf(buffer,"\nCODEC_INPUT_BUF1: \n");
735 	col = 0;
736 	for (i = CODEC_INPUT_BUF1;i < CODEC_INPUT_BUF1 + 0x40; i += sizeof(u32),col ++) {
737 		if (col == 4) {
738 			snd_iprintf(buffer,"\n");
739 			col = 0;
740 		}
741 
742 		if (col == 0) {
743 			snd_iprintf(buffer, "%04X ",i);
744 		}
745 
746 		snd_iprintf(buffer,"%08X ",readl(dst + i));
747 	}
748 #if 0
749 	snd_iprintf(buffer,"\nWRITE_BACK_BUF1: \n");
750 	col = 0;
751 	for (i = WRITE_BACK_BUF1;i < WRITE_BACK_BUF1 + 0x40; i += sizeof(u32),col ++) {
752 		if (col == 4) {
753 			snd_iprintf(buffer,"\n");
754 			col = 0;
755 		}
756 
757 		if (col == 0) {
758 			snd_iprintf(buffer, "%04X ",i);
759 		}
760 
761 		snd_iprintf(buffer,"%08X ",readl(dst + i));
762 	}
763 #endif
764 
765 	snd_iprintf(buffer,"\nSPDIFI_IP_OUTPUT_BUFFER1: \n");
766 	col = 0;
767 	for (i = SPDIFI_IP_OUTPUT_BUFFER1;i < SPDIFI_IP_OUTPUT_BUFFER1 + 0x80; i += sizeof(u32),col ++) {
768 		if (col == 4) {
769 			snd_iprintf(buffer,"\n");
770 			col = 0;
771 		}
772 
773 		if (col == 0) {
774 			snd_iprintf(buffer, "%04X ",i);
775 		}
776 
777 		snd_iprintf(buffer,"%08X ",readl(dst + i));
778 	}
779 	snd_iprintf(buffer,"\n");
780 }
781 
782 int cs46xx_dsp_proc_init (struct snd_card *card, struct snd_cs46xx *chip)
783 {
784 	struct snd_info_entry *entry;
785 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
786 	int i;
787 
788 	ins->snd_card = card;
789 
790 	entry = snd_info_create_card_entry(card, "dsp", card->proc_root);
791 	if (entry)
792 		entry->mode = S_IFDIR | 0555;
793 	ins->proc_dsp_dir = entry;
794 
795 	if (!ins->proc_dsp_dir)
796 		return -ENOMEM;
797 
798 	entry = snd_info_create_card_entry(card, "spos_symbols",
799 					   ins->proc_dsp_dir);
800 	if (entry)
801 		snd_info_set_text_ops(entry, chip,
802 				      cs46xx_dsp_proc_symbol_table_read);
803 
804 	entry = snd_info_create_card_entry(card, "spos_modules",
805 					   ins->proc_dsp_dir);
806 	if (entry)
807 		snd_info_set_text_ops(entry, chip,
808 				      cs46xx_dsp_proc_modules_read);
809 
810 	entry = snd_info_create_card_entry(card, "parameter",
811 					   ins->proc_dsp_dir);
812 	if (entry)
813 		snd_info_set_text_ops(entry, chip,
814 				      cs46xx_dsp_proc_parameter_dump_read);
815 
816 	entry = snd_info_create_card_entry(card, "sample",
817 					   ins->proc_dsp_dir);
818 	if (entry)
819 		snd_info_set_text_ops(entry, chip,
820 				      cs46xx_dsp_proc_sample_dump_read);
821 
822 	entry = snd_info_create_card_entry(card, "task_tree",
823 					   ins->proc_dsp_dir);
824 	if (entry)
825 		snd_info_set_text_ops(entry, chip,
826 				      cs46xx_dsp_proc_task_tree_read);
827 
828 	entry = snd_info_create_card_entry(card, "scb_info",
829 					   ins->proc_dsp_dir);
830 	if (entry)
831 		snd_info_set_text_ops(entry, chip,
832 				      cs46xx_dsp_proc_scb_read);
833 
834 	mutex_lock(&chip->spos_mutex);
835 	/* register/update SCB's entries on proc */
836 	for (i = 0; i < ins->nscb; ++i) {
837 		if (ins->scbs[i].deleted) continue;
838 
839 		cs46xx_dsp_proc_register_scb_desc (chip, (ins->scbs + i));
840 	}
841 	mutex_unlock(&chip->spos_mutex);
842 
843 	return 0;
844 }
845 
846 int cs46xx_dsp_proc_done (struct snd_cs46xx *chip)
847 {
848 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
849 	int i;
850 
851 	if (!ins)
852 		return 0;
853 
854 	mutex_lock(&chip->spos_mutex);
855 	for (i = 0; i < ins->nscb; ++i) {
856 		if (ins->scbs[i].deleted) continue;
857 		cs46xx_dsp_proc_free_scb_desc ( (ins->scbs + i) );
858 	}
859 	mutex_unlock(&chip->spos_mutex);
860 
861 	snd_info_free_entry(ins->proc_dsp_dir);
862 	ins->proc_dsp_dir = NULL;
863 
864 	return 0;
865 }
866 #endif /* CONFIG_SND_PROC_FS */
867 
868 static void _dsp_create_task_tree (struct snd_cs46xx *chip, u32 * task_data,
869 				   u32  dest, int size)
870 {
871 	void __iomem *spdst = chip->region.idx[1].remap_addr +
872 		DSP_PARAMETER_BYTE_OFFSET + dest * sizeof(u32);
873 	int i;
874 
875 	for (i = 0; i < size; ++i) {
876 		dev_dbg(chip->card->dev, "addr %p, val %08x\n",
877 			spdst, task_data[i]);
878 		writel(task_data[i],spdst);
879 		spdst += sizeof(u32);
880 	}
881 }
882 
883 static void _dsp_create_scb (struct snd_cs46xx *chip, u32 * scb_data, u32 dest)
884 {
885 	void __iomem *spdst = chip->region.idx[1].remap_addr +
886 		DSP_PARAMETER_BYTE_OFFSET + dest * sizeof(u32);
887 	int i;
888 
889 	for (i = 0; i < 0x10; ++i) {
890 		dev_dbg(chip->card->dev, "addr %p, val %08x\n",
891 			spdst, scb_data[i]);
892 		writel(scb_data[i],spdst);
893 		spdst += sizeof(u32);
894 	}
895 }
896 
897 static int find_free_scb_index (struct dsp_spos_instance * ins)
898 {
899 	int index = ins->nscb, i;
900 
901 	for (i = ins->scb_highest_frag_index; i < ins->nscb; ++i) {
902 		if (ins->scbs[i].deleted) {
903 			index = i;
904 			break;
905 		}
906 	}
907 
908 	return index;
909 }
910 
911 static struct dsp_scb_descriptor * _map_scb (struct snd_cs46xx *chip, char * name, u32 dest)
912 {
913 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
914 	struct dsp_scb_descriptor * desc = NULL;
915 	int index;
916 
917 	if (ins->nscb == DSP_MAX_SCB_DESC - 1) {
918 		dev_err(chip->card->dev,
919 			"dsp_spos: got no place for other SCB\n");
920 		return NULL;
921 	}
922 
923 	index = find_free_scb_index (ins);
924 
925 	memset(&ins->scbs[index], 0, sizeof(ins->scbs[index]));
926 	strcpy(ins->scbs[index].scb_name, name);
927 	ins->scbs[index].address = dest;
928 	ins->scbs[index].index = index;
929 	ins->scbs[index].ref_count = 1;
930 
931 	desc = (ins->scbs + index);
932 	ins->scbs[index].scb_symbol = add_symbol (chip, name, dest, SYMBOL_PARAMETER);
933 
934 	if (index > ins->scb_highest_frag_index)
935 		ins->scb_highest_frag_index = index;
936 
937 	if (index == ins->nscb)
938 		ins->nscb++;
939 
940 	return desc;
941 }
942 
943 static struct dsp_task_descriptor *
944 _map_task_tree (struct snd_cs46xx *chip, char * name, u32 dest, u32 size)
945 {
946 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
947 	struct dsp_task_descriptor * desc = NULL;
948 
949 	if (ins->ntask == DSP_MAX_TASK_DESC - 1) {
950 		dev_err(chip->card->dev,
951 			"dsp_spos: got no place for other TASK\n");
952 		return NULL;
953 	}
954 
955 	if (name)
956 		strcpy(ins->tasks[ins->ntask].task_name, name);
957 	else
958 		strcpy(ins->tasks[ins->ntask].task_name, "(NULL)");
959 	ins->tasks[ins->ntask].address = dest;
960 	ins->tasks[ins->ntask].size = size;
961 
962 	/* quick find in list */
963 	ins->tasks[ins->ntask].index = ins->ntask;
964 	desc = (ins->tasks + ins->ntask);
965 	ins->ntask++;
966 
967 	if (name)
968 		add_symbol (chip,name,dest,SYMBOL_PARAMETER);
969 	return desc;
970 }
971 
972 #define SCB_BYTES	(0x10 * 4)
973 
974 struct dsp_scb_descriptor *
975 cs46xx_dsp_create_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u32 dest)
976 {
977 	struct dsp_scb_descriptor * desc;
978 
979 #ifdef CONFIG_PM_SLEEP
980 	/* copy the data for resume */
981 	scb_data = kmemdup(scb_data, SCB_BYTES, GFP_KERNEL);
982 	if (!scb_data)
983 		return NULL;
984 #endif
985 
986 	desc = _map_scb (chip,name,dest);
987 	if (desc) {
988 		desc->data = scb_data;
989 		_dsp_create_scb(chip,scb_data,dest);
990 	} else {
991 		dev_err(chip->card->dev, "dsp_spos: failed to map SCB\n");
992 #ifdef CONFIG_PM_SLEEP
993 		kfree(scb_data);
994 #endif
995 	}
996 
997 	return desc;
998 }
999 
1000 
1001 static struct dsp_task_descriptor *
1002 cs46xx_dsp_create_task_tree (struct snd_cs46xx *chip, char * name, u32 * task_data,
1003 			     u32 dest, int size)
1004 {
1005 	struct dsp_task_descriptor * desc;
1006 
1007 	desc = _map_task_tree (chip,name,dest,size);
1008 	if (desc) {
1009 		desc->data = task_data;
1010 		_dsp_create_task_tree(chip,task_data,dest,size);
1011 	} else {
1012 		dev_err(chip->card->dev, "dsp_spos: failed to map TASK\n");
1013 	}
1014 
1015 	return desc;
1016 }
1017 
1018 int cs46xx_dsp_scb_and_task_init (struct snd_cs46xx *chip)
1019 {
1020 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1021 	struct dsp_symbol_entry * fg_task_tree_header_code;
1022 	struct dsp_symbol_entry * task_tree_header_code;
1023 	struct dsp_symbol_entry * task_tree_thread;
1024 	struct dsp_symbol_entry * null_algorithm;
1025 	struct dsp_symbol_entry * magic_snoop_task;
1026 
1027 	struct dsp_scb_descriptor * timing_master_scb;
1028 	struct dsp_scb_descriptor * codec_out_scb;
1029 	struct dsp_scb_descriptor * codec_in_scb;
1030 	struct dsp_scb_descriptor * src_task_scb;
1031 	struct dsp_scb_descriptor * master_mix_scb;
1032 	struct dsp_scb_descriptor * rear_mix_scb;
1033 	struct dsp_scb_descriptor * record_mix_scb;
1034 	struct dsp_scb_descriptor * write_back_scb;
1035 	struct dsp_scb_descriptor * vari_decimate_scb;
1036 	struct dsp_scb_descriptor * rear_codec_out_scb;
1037 	struct dsp_scb_descriptor * clfe_codec_out_scb;
1038 	struct dsp_scb_descriptor * magic_snoop_scb;
1039 
1040 	int fifo_addr, fifo_span, valid_slots;
1041 
1042 	static const struct dsp_spos_control_block sposcb = {
1043 		/* 0 */ HFG_TREE_SCB,HFG_STACK,
1044 		/* 1 */ SPOSCB_ADDR,BG_TREE_SCB_ADDR,
1045 		/* 2 */ DSP_SPOS_DC,0,
1046 		/* 3 */ DSP_SPOS_DC,DSP_SPOS_DC,
1047 		/* 4 */ 0,0,
1048 		/* 5 */ DSP_SPOS_UU,0,
1049 		/* 6 */ FG_TASK_HEADER_ADDR,0,
1050 		/* 7 */ 0,0,
1051 		/* 8 */ DSP_SPOS_UU,DSP_SPOS_DC,
1052 		/* 9 */ 0,
1053 		/* A */ 0,HFG_FIRST_EXECUTE_MODE,
1054 		/* B */ DSP_SPOS_UU,DSP_SPOS_UU,
1055 		/* C */ DSP_SPOS_DC_DC,
1056 		/* D */ DSP_SPOS_DC_DC,
1057 		/* E */ DSP_SPOS_DC_DC,
1058 		/* F */ DSP_SPOS_DC_DC
1059 	};
1060 
1061 	cs46xx_dsp_create_task_tree(chip, "sposCB", (u32 *)&sposcb, SPOSCB_ADDR, 0x10);
1062 
1063 	null_algorithm  = cs46xx_dsp_lookup_symbol(chip, "NULLALGORITHM", SYMBOL_CODE);
1064 	if (null_algorithm == NULL) {
1065 		dev_err(chip->card->dev,
1066 			"dsp_spos: symbol NULLALGORITHM not found\n");
1067 		return -EIO;
1068 	}
1069 
1070 	fg_task_tree_header_code = cs46xx_dsp_lookup_symbol(chip, "FGTASKTREEHEADERCODE", SYMBOL_CODE);
1071 	if (fg_task_tree_header_code == NULL) {
1072 		dev_err(chip->card->dev,
1073 			"dsp_spos: symbol FGTASKTREEHEADERCODE not found\n");
1074 		return -EIO;
1075 	}
1076 
1077 	task_tree_header_code = cs46xx_dsp_lookup_symbol(chip, "TASKTREEHEADERCODE", SYMBOL_CODE);
1078 	if (task_tree_header_code == NULL) {
1079 		dev_err(chip->card->dev,
1080 			"dsp_spos: symbol TASKTREEHEADERCODE not found\n");
1081 		return -EIO;
1082 	}
1083 
1084 	task_tree_thread = cs46xx_dsp_lookup_symbol(chip, "TASKTREETHREAD", SYMBOL_CODE);
1085 	if (task_tree_thread == NULL) {
1086 		dev_err(chip->card->dev,
1087 			"dsp_spos: symbol TASKTREETHREAD not found\n");
1088 		return -EIO;
1089 	}
1090 
1091 	magic_snoop_task = cs46xx_dsp_lookup_symbol(chip, "MAGICSNOOPTASK", SYMBOL_CODE);
1092 	if (magic_snoop_task == NULL) {
1093 		dev_err(chip->card->dev,
1094 			"dsp_spos: symbol MAGICSNOOPTASK not found\n");
1095 		return -EIO;
1096 	}
1097 
1098 	{
1099 		/* create the null SCB */
1100 		static struct dsp_generic_scb null_scb = {
1101 			{ 0, 0, 0, 0 },
1102 			{ 0, 0, 0, 0, 0 },
1103 			NULL_SCB_ADDR, NULL_SCB_ADDR,
1104 			0, 0, 0, 0, 0,
1105 			{
1106 				0,0,
1107 				0,0,
1108 			}
1109 		};
1110 
1111 		null_scb.entry_point = null_algorithm->address;
1112 		ins->the_null_scb = cs46xx_dsp_create_scb(chip, "nullSCB", (u32 *)&null_scb, NULL_SCB_ADDR);
1113 		ins->the_null_scb->task_entry = null_algorithm;
1114 		ins->the_null_scb->sub_list_ptr = ins->the_null_scb;
1115 		ins->the_null_scb->next_scb_ptr = ins->the_null_scb;
1116 		ins->the_null_scb->parent_scb_ptr = NULL;
1117 		cs46xx_dsp_proc_register_scb_desc (chip,ins->the_null_scb);
1118 	}
1119 
1120 	{
1121 		/* setup foreground task tree */
1122 		static struct dsp_task_tree_control_block fg_task_tree_hdr =  {
1123 			{ FG_TASK_HEADER_ADDR | (DSP_SPOS_DC << 0x10),
1124 			  DSP_SPOS_DC_DC,
1125 			  DSP_SPOS_DC_DC,
1126 			  0x0000,DSP_SPOS_DC,
1127 			  DSP_SPOS_DC, DSP_SPOS_DC,
1128 			  DSP_SPOS_DC_DC,
1129 			  DSP_SPOS_DC_DC,
1130 			  DSP_SPOS_DC_DC,
1131 			  DSP_SPOS_DC,DSP_SPOS_DC },
1132 
1133 			{
1134 				BG_TREE_SCB_ADDR,TIMINGMASTER_SCB_ADDR,
1135 				0,
1136 				FG_TASK_HEADER_ADDR + TCBData,
1137 			},
1138 
1139 			{
1140 				4,0,
1141 				1,0,
1142 				2,SPOSCB_ADDR + HFGFlags,
1143 				0,0,
1144 				FG_TASK_HEADER_ADDR + TCBContextBlk,FG_STACK
1145 			},
1146 
1147 			{
1148 				DSP_SPOS_DC,0,
1149 				DSP_SPOS_DC,DSP_SPOS_DC,
1150 				DSP_SPOS_DC,DSP_SPOS_DC,
1151 				DSP_SPOS_DC,DSP_SPOS_DC,
1152 				DSP_SPOS_DC,DSP_SPOS_DC,
1153 				DSP_SPOS_DCDC,
1154 				DSP_SPOS_UU,1,
1155 				DSP_SPOS_DCDC,
1156 				DSP_SPOS_DCDC,
1157 				DSP_SPOS_DCDC,
1158 				DSP_SPOS_DCDC,
1159 				DSP_SPOS_DCDC,
1160 				DSP_SPOS_DCDC,
1161 				DSP_SPOS_DCDC,
1162 				DSP_SPOS_DCDC,
1163 				DSP_SPOS_DCDC,
1164 				DSP_SPOS_DCDC,
1165 				DSP_SPOS_DCDC,
1166 				DSP_SPOS_DCDC,
1167 				DSP_SPOS_DCDC,
1168 				DSP_SPOS_DCDC,
1169 				DSP_SPOS_DCDC,
1170 				DSP_SPOS_DCDC,
1171 				DSP_SPOS_DCDC,
1172 				DSP_SPOS_DCDC,
1173 				DSP_SPOS_DCDC,
1174 				DSP_SPOS_DCDC,
1175 				DSP_SPOS_DCDC,
1176 				DSP_SPOS_DCDC,
1177 				DSP_SPOS_DCDC,
1178 				DSP_SPOS_DCDC,
1179 				DSP_SPOS_DCDC,
1180 				DSP_SPOS_DCDC,
1181 				DSP_SPOS_DCDC,
1182 				DSP_SPOS_DCDC
1183 			},
1184 			{
1185 				FG_INTERVAL_TIMER_PERIOD,DSP_SPOS_UU,
1186 				0,0
1187 			}
1188 		};
1189 
1190 		fg_task_tree_hdr.links.entry_point = fg_task_tree_header_code->address;
1191 		fg_task_tree_hdr.context_blk.stack0 = task_tree_thread->address;
1192 		cs46xx_dsp_create_task_tree(chip,"FGtaskTreeHdr",(u32 *)&fg_task_tree_hdr,FG_TASK_HEADER_ADDR,0x35);
1193 	}
1194 
1195 
1196 	{
1197 		/* setup foreground task tree */
1198 		static struct dsp_task_tree_control_block bg_task_tree_hdr =  {
1199 			{ DSP_SPOS_DC_DC,
1200 			  DSP_SPOS_DC_DC,
1201 			  DSP_SPOS_DC_DC,
1202 			  DSP_SPOS_DC, DSP_SPOS_DC,
1203 			  DSP_SPOS_DC, DSP_SPOS_DC,
1204 			  DSP_SPOS_DC_DC,
1205 			  DSP_SPOS_DC_DC,
1206 			  DSP_SPOS_DC_DC,
1207 			  DSP_SPOS_DC,DSP_SPOS_DC },
1208 
1209 			{
1210 				NULL_SCB_ADDR,NULL_SCB_ADDR,  /* Set up the background to do nothing */
1211 				0,
1212 				BG_TREE_SCB_ADDR + TCBData,
1213 			},
1214 
1215 			{
1216 				9999,0,
1217 				0,1,
1218 				0,SPOSCB_ADDR + HFGFlags,
1219 				0,0,
1220 				BG_TREE_SCB_ADDR + TCBContextBlk,BG_STACK
1221 			},
1222 
1223 			{
1224 				DSP_SPOS_DC,0,
1225 				DSP_SPOS_DC,DSP_SPOS_DC,
1226 				DSP_SPOS_DC,DSP_SPOS_DC,
1227 				DSP_SPOS_DC,DSP_SPOS_DC,
1228 				DSP_SPOS_DC,DSP_SPOS_DC,
1229 				DSP_SPOS_DCDC,
1230 				DSP_SPOS_UU,1,
1231 				DSP_SPOS_DCDC,
1232 				DSP_SPOS_DCDC,
1233 				DSP_SPOS_DCDC,
1234 				DSP_SPOS_DCDC,
1235 				DSP_SPOS_DCDC,
1236 				DSP_SPOS_DCDC,
1237 				DSP_SPOS_DCDC,
1238 				DSP_SPOS_DCDC,
1239 				DSP_SPOS_DCDC,
1240 				DSP_SPOS_DCDC,
1241 				DSP_SPOS_DCDC,
1242 				DSP_SPOS_DCDC,
1243 				DSP_SPOS_DCDC,
1244 				DSP_SPOS_DCDC,
1245 				DSP_SPOS_DCDC,
1246 				DSP_SPOS_DCDC,
1247 				DSP_SPOS_DCDC,
1248 				DSP_SPOS_DCDC,
1249 				DSP_SPOS_DCDC,
1250 				DSP_SPOS_DCDC,
1251 				DSP_SPOS_DCDC,
1252 				DSP_SPOS_DCDC,
1253 				DSP_SPOS_DCDC,
1254 				DSP_SPOS_DCDC,
1255 				DSP_SPOS_DCDC,
1256 				DSP_SPOS_DCDC,
1257 				DSP_SPOS_DCDC,
1258 				DSP_SPOS_DCDC
1259 			},
1260 			{
1261 				BG_INTERVAL_TIMER_PERIOD,DSP_SPOS_UU,
1262 				0,0
1263 			}
1264 		};
1265 
1266 		bg_task_tree_hdr.links.entry_point = task_tree_header_code->address;
1267 		bg_task_tree_hdr.context_blk.stack0 = task_tree_thread->address;
1268 		cs46xx_dsp_create_task_tree(chip,"BGtaskTreeHdr",(u32 *)&bg_task_tree_hdr,BG_TREE_SCB_ADDR,0x35);
1269 	}
1270 
1271 	/* create timing master SCB */
1272 	timing_master_scb = cs46xx_dsp_create_timing_master_scb(chip);
1273 
1274 	/* create the CODEC output task */
1275 	codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_I",0x0010,0x0000,
1276 							MASTERMIX_SCB_ADDR,
1277 							CODECOUT_SCB_ADDR,timing_master_scb,
1278 							SCB_ON_PARENT_SUBLIST_SCB);
1279 
1280 	if (!codec_out_scb) goto _fail_end;
1281 	/* create the master mix SCB */
1282 	master_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"MasterMixSCB",
1283 							MIX_SAMPLE_BUF1,MASTERMIX_SCB_ADDR,
1284 							codec_out_scb,
1285 							SCB_ON_PARENT_SUBLIST_SCB);
1286 	ins->master_mix_scb = master_mix_scb;
1287 
1288 	if (!master_mix_scb) goto _fail_end;
1289 
1290 	/* create codec in */
1291 	codec_in_scb = cs46xx_dsp_create_codec_in_scb(chip,"CodecInSCB",0x0010,0x00A0,
1292 						      CODEC_INPUT_BUF1,
1293 						      CODECIN_SCB_ADDR,codec_out_scb,
1294 						      SCB_ON_PARENT_NEXT_SCB);
1295 	if (!codec_in_scb) goto _fail_end;
1296 	ins->codec_in_scb = codec_in_scb;
1297 
1298 	/* create write back scb */
1299 	write_back_scb = cs46xx_dsp_create_mix_to_ostream_scb(chip,"WriteBackSCB",
1300 							      WRITE_BACK_BUF1,WRITE_BACK_SPB,
1301 							      WRITEBACK_SCB_ADDR,
1302 							      timing_master_scb,
1303 							      SCB_ON_PARENT_NEXT_SCB);
1304 	if (!write_back_scb) goto _fail_end;
1305 
1306 	{
1307 		static struct dsp_mix2_ostream_spb mix2_ostream_spb = {
1308 			0x00020000,
1309 			0x0000ffff
1310 		};
1311 
1312 		if (!cs46xx_dsp_create_task_tree(chip, NULL,
1313 						 (u32 *)&mix2_ostream_spb,
1314 						 WRITE_BACK_SPB, 2))
1315 			goto _fail_end;
1316 	}
1317 
1318 	/* input sample converter */
1319 	vari_decimate_scb = cs46xx_dsp_create_vari_decimate_scb(chip,"VariDecimateSCB",
1320 								VARI_DECIMATE_BUF0,
1321 								VARI_DECIMATE_BUF1,
1322 								VARIDECIMATE_SCB_ADDR,
1323 								write_back_scb,
1324 								SCB_ON_PARENT_SUBLIST_SCB);
1325 	if (!vari_decimate_scb) goto _fail_end;
1326 
1327 	/* create the record mixer SCB */
1328 	record_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"RecordMixerSCB",
1329 							MIX_SAMPLE_BUF2,
1330 							RECORD_MIXER_SCB_ADDR,
1331 							vari_decimate_scb,
1332 							SCB_ON_PARENT_SUBLIST_SCB);
1333 	ins->record_mixer_scb = record_mix_scb;
1334 
1335 	if (!record_mix_scb) goto _fail_end;
1336 
1337 	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
1338 
1339 	if (snd_BUG_ON(chip->nr_ac97_codecs != 1 && chip->nr_ac97_codecs != 2))
1340 		goto _fail_end;
1341 
1342 	if (chip->nr_ac97_codecs == 1) {
1343 		/* output on slot 5 and 11
1344 		   on primary CODEC */
1345 		fifo_addr = 0x20;
1346 		fifo_span = 0x60;
1347 
1348 		/* enable slot 5 and 11 */
1349 		valid_slots |= ACOSV_SLV5 | ACOSV_SLV11;
1350 	} else {
1351 		/* output on slot 7 and 8
1352 		   on secondary CODEC */
1353 		fifo_addr = 0x40;
1354 		fifo_span = 0x10;
1355 
1356 		/* enable slot 7 and 8 */
1357 		valid_slots |= ACOSV_SLV7 | ACOSV_SLV8;
1358 	}
1359 	/* create CODEC tasklet for rear speakers output*/
1360 	rear_codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_Rear",fifo_span,fifo_addr,
1361 							     REAR_MIXER_SCB_ADDR,
1362 							     REAR_CODECOUT_SCB_ADDR,codec_in_scb,
1363 							     SCB_ON_PARENT_NEXT_SCB);
1364 	if (!rear_codec_out_scb) goto _fail_end;
1365 
1366 
1367 	/* create the rear PCM channel  mixer SCB */
1368 	rear_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"RearMixerSCB",
1369 						      MIX_SAMPLE_BUF3,
1370 						      REAR_MIXER_SCB_ADDR,
1371 						      rear_codec_out_scb,
1372 						      SCB_ON_PARENT_SUBLIST_SCB);
1373 	ins->rear_mix_scb = rear_mix_scb;
1374 	if (!rear_mix_scb) goto _fail_end;
1375 
1376 	if (chip->nr_ac97_codecs == 2) {
1377 		/* create CODEC tasklet for rear Center/LFE output
1378 		   slot 6 and 9 on secondary CODEC */
1379 		clfe_codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_CLFE",0x0030,0x0030,
1380 								     CLFE_MIXER_SCB_ADDR,
1381 								     CLFE_CODEC_SCB_ADDR,
1382 								     rear_codec_out_scb,
1383 								     SCB_ON_PARENT_NEXT_SCB);
1384 		if (!clfe_codec_out_scb) goto _fail_end;
1385 
1386 
1387 		/* create the rear PCM channel  mixer SCB */
1388 		ins->center_lfe_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"CLFEMixerSCB",
1389 									 MIX_SAMPLE_BUF4,
1390 									 CLFE_MIXER_SCB_ADDR,
1391 									 clfe_codec_out_scb,
1392 									 SCB_ON_PARENT_SUBLIST_SCB);
1393 		if (!ins->center_lfe_mix_scb) goto _fail_end;
1394 
1395 		/* enable slot 6 and 9 */
1396 		valid_slots |= ACOSV_SLV6 | ACOSV_SLV9;
1397 	} else {
1398 		clfe_codec_out_scb = rear_codec_out_scb;
1399 		ins->center_lfe_mix_scb = rear_mix_scb;
1400 	}
1401 
1402 	/* enable slots depending on CODEC configuration */
1403 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
1404 
1405 	/* the magic snooper */
1406 	magic_snoop_scb = cs46xx_dsp_create_magic_snoop_scb (chip,"MagicSnoopSCB_I",OUTPUTSNOOP_SCB_ADDR,
1407 							     OUTPUT_SNOOP_BUFFER,
1408 							     codec_out_scb,
1409 							     clfe_codec_out_scb,
1410 							     SCB_ON_PARENT_NEXT_SCB);
1411 
1412 
1413 	if (!magic_snoop_scb) goto _fail_end;
1414 	ins->ref_snoop_scb = magic_snoop_scb;
1415 
1416 	/* SP IO access */
1417 	if (!cs46xx_dsp_create_spio_write_scb(chip,"SPIOWriteSCB",SPIOWRITE_SCB_ADDR,
1418 					      magic_snoop_scb,
1419 					      SCB_ON_PARENT_NEXT_SCB))
1420 		goto _fail_end;
1421 
1422 	/* SPDIF input sampel rate converter */
1423 	src_task_scb = cs46xx_dsp_create_src_task_scb(chip,"SrcTaskSCB_SPDIFI",
1424 						      ins->spdif_in_sample_rate,
1425 						      SRC_OUTPUT_BUF1,
1426 						      SRC_DELAY_BUF1,SRCTASK_SCB_ADDR,
1427 						      master_mix_scb,
1428 						      SCB_ON_PARENT_SUBLIST_SCB,1);
1429 
1430 	if (!src_task_scb) goto _fail_end;
1431 	cs46xx_src_unlink(chip,src_task_scb);
1432 
1433 	/* NOTE: when we now how to detect the SPDIF input
1434 	   sample rate we will use this SRC to adjust it */
1435 	ins->spdif_in_src = src_task_scb;
1436 
1437 	cs46xx_dsp_async_init(chip,timing_master_scb);
1438 	return 0;
1439 
1440  _fail_end:
1441 	dev_err(chip->card->dev, "dsp_spos: failed to setup SCB's in DSP\n");
1442 	return -EINVAL;
1443 }
1444 
1445 static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
1446 				  struct dsp_scb_descriptor * fg_entry)
1447 {
1448 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1449 	struct dsp_symbol_entry * s16_async_codec_input_task;
1450 	struct dsp_symbol_entry * spdifo_task;
1451 	struct dsp_symbol_entry * spdifi_task;
1452 	struct dsp_scb_descriptor * spdifi_scb_desc, * spdifo_scb_desc, * async_codec_scb_desc;
1453 
1454 	s16_async_codec_input_task = cs46xx_dsp_lookup_symbol(chip, "S16_ASYNCCODECINPUTTASK", SYMBOL_CODE);
1455 	if (s16_async_codec_input_task == NULL) {
1456 		dev_err(chip->card->dev,
1457 			"dsp_spos: symbol S16_ASYNCCODECINPUTTASK not found\n");
1458 		return -EIO;
1459 	}
1460 	spdifo_task = cs46xx_dsp_lookup_symbol(chip, "SPDIFOTASK", SYMBOL_CODE);
1461 	if (spdifo_task == NULL) {
1462 		dev_err(chip->card->dev,
1463 			"dsp_spos: symbol SPDIFOTASK not found\n");
1464 		return -EIO;
1465 	}
1466 
1467 	spdifi_task = cs46xx_dsp_lookup_symbol(chip, "SPDIFITASK", SYMBOL_CODE);
1468 	if (spdifi_task == NULL) {
1469 		dev_err(chip->card->dev,
1470 			"dsp_spos: symbol SPDIFITASK not found\n");
1471 		return -EIO;
1472 	}
1473 
1474 	{
1475 		/* 0xBC0 */
1476 		struct dsp_spdifoscb spdifo_scb = {
1477 			/* 0 */ DSP_SPOS_UUUU,
1478 			{
1479 				/* 1 */ 0xb0,
1480 				/* 2 */ 0,
1481 				/* 3 */ 0,
1482 				/* 4 */ 0,
1483 			},
1484 			/* NOTE: the SPDIF output task read samples in mono
1485 			   format, the AsynchFGTxSCB task writes to buffer
1486 			   in stereo format
1487 			*/
1488 			/* 5 */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_256,
1489 			/* 6 */ ( SPDIFO_IP_OUTPUT_BUFFER1 << 0x10 )  |  0xFFFC,
1490 			/* 7 */ 0,0,
1491 			/* 8 */ 0,
1492 			/* 9 */ FG_TASK_HEADER_ADDR, NULL_SCB_ADDR,
1493 			/* A */ spdifo_task->address,
1494 			SPDIFO_SCB_INST + SPDIFOFIFOPointer,
1495 			{
1496 				/* B */ 0x0040, /*DSP_SPOS_UUUU,*/
1497 				/* C */ 0x20ff, /*DSP_SPOS_UUUU,*/
1498 			},
1499 			/* D */ 0x804c,0,							  /* SPDIFOFIFOPointer:SPDIFOStatRegAddr; */
1500 			/* E */ 0x0108,0x0001,					  /* SPDIFOStMoFormat:SPDIFOFIFOBaseAddr; */
1501 			/* F */ DSP_SPOS_UUUU	  			          /* SPDIFOFree; */
1502 		};
1503 
1504 		/* 0xBB0 */
1505 		struct dsp_spdifiscb spdifi_scb = {
1506 			/* 0 */ DSP_SPOS_UULO,DSP_SPOS_UUHI,
1507 			/* 1 */ 0,
1508 			/* 2 */ 0,
1509 			/* 3 */ 1,4000,        /* SPDIFICountLimit SPDIFICount */
1510 			/* 4 */ DSP_SPOS_UUUU, /* SPDIFIStatusData */
1511 			/* 5 */ 0,DSP_SPOS_UUHI, /* StatusData, Free4 */
1512 			/* 6 */ DSP_SPOS_UUUU,  /* Free3 */
1513 			/* 7 */ DSP_SPOS_UU,DSP_SPOS_DC,  /* Free2 BitCount*/
1514 			/* 8 */ DSP_SPOS_UUUU,	/* TempStatus */
1515 			/* 9 */ SPDIFO_SCB_INST, NULL_SCB_ADDR,
1516 			/* A */ spdifi_task->address,
1517 			SPDIFI_SCB_INST + SPDIFIFIFOPointer,
1518 			/* NOTE: The SPDIF input task write the sample in mono
1519 			   format from the HW FIFO, the AsynchFGRxSCB task  reads
1520 			   them in stereo
1521 			*/
1522 			/* B */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_128,
1523 			/* C */ (SPDIFI_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,
1524 			/* D */ 0x8048,0,
1525 			/* E */ 0x01f0,0x0001,
1526 			/* F */ DSP_SPOS_UUUU /* SPDIN_STATUS monitor */
1527 		};
1528 
1529 		/* 0xBA0 */
1530 		struct dsp_async_codec_input_scb async_codec_input_scb = {
1531 			/* 0 */ DSP_SPOS_UUUU,
1532 			/* 1 */ 0,
1533 			/* 2 */ 0,
1534 			/* 3 */ 1,4000,
1535 			/* 4 */ 0x0118,0x0001,
1536 			/* 5 */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_64,
1537 			/* 6 */ (ASYNC_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,
1538 			/* 7 */ DSP_SPOS_UU,0x3,
1539 			/* 8 */ DSP_SPOS_UUUU,
1540 			/* 9 */ SPDIFI_SCB_INST,NULL_SCB_ADDR,
1541 			/* A */ s16_async_codec_input_task->address,
1542 			HFG_TREE_SCB + AsyncCIOFIFOPointer,
1543 
1544 			/* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1545 			/* C */ (ASYNC_IP_OUTPUT_BUFFER1 << 0x10),  /*(ASYNC_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,*/
1546 
1547 #ifdef UseASER1Input
1548 			/* short AsyncCIFIFOPointer:AsyncCIStatRegAddr;
1549 			   Init. 0000:8042: for ASER1
1550 			   0000:8044: for ASER2 */
1551 			/* D */ 0x8042,0,
1552 
1553 			/* short AsyncCIStMoFormat:AsyncCIFIFOBaseAddr;
1554 			   Init 1 stero:8050 ASER1
1555 			   Init 0  mono:8070 ASER2
1556 			   Init 1 Stereo : 0100 ASER1 (Set by script) */
1557 			/* E */ 0x0100,0x0001,
1558 
1559 #endif
1560 
1561 #ifdef UseASER2Input
1562 			/* short AsyncCIFIFOPointer:AsyncCIStatRegAddr;
1563 			   Init. 0000:8042: for ASER1
1564 			   0000:8044: for ASER2 */
1565 			/* D */ 0x8044,0,
1566 
1567 			/* short AsyncCIStMoFormat:AsyncCIFIFOBaseAddr;
1568 			   Init 1 stero:8050 ASER1
1569 			   Init 0  mono:8070 ASER2
1570 			   Init 1 Stereo : 0100 ASER1 (Set by script) */
1571 			/* E */ 0x0110,0x0001,
1572 
1573 #endif
1574 
1575 			/* short AsyncCIOutputBufModulo:AsyncCIFree;
1576 			   AsyncCIOutputBufModulo: The modulo size for
1577 			   the output buffer of this task */
1578 			/* F */ 0, /* DSP_SPOS_UUUU */
1579 		};
1580 
1581 		spdifo_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFOSCB",(u32 *)&spdifo_scb,SPDIFO_SCB_INST);
1582 
1583 		if (snd_BUG_ON(!spdifo_scb_desc))
1584 			return -EIO;
1585 		spdifi_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFISCB",(u32 *)&spdifi_scb,SPDIFI_SCB_INST);
1586 		if (snd_BUG_ON(!spdifi_scb_desc))
1587 			return -EIO;
1588 		async_codec_scb_desc = cs46xx_dsp_create_scb(chip,"AsynCodecInputSCB",(u32 *)&async_codec_input_scb, HFG_TREE_SCB);
1589 		if (snd_BUG_ON(!async_codec_scb_desc))
1590 			return -EIO;
1591 
1592 		async_codec_scb_desc->parent_scb_ptr = NULL;
1593 		async_codec_scb_desc->next_scb_ptr = spdifi_scb_desc;
1594 		async_codec_scb_desc->sub_list_ptr = ins->the_null_scb;
1595 		async_codec_scb_desc->task_entry = s16_async_codec_input_task;
1596 
1597 		spdifi_scb_desc->parent_scb_ptr = async_codec_scb_desc;
1598 		spdifi_scb_desc->next_scb_ptr = spdifo_scb_desc;
1599 		spdifi_scb_desc->sub_list_ptr = ins->the_null_scb;
1600 		spdifi_scb_desc->task_entry = spdifi_task;
1601 
1602 		spdifo_scb_desc->parent_scb_ptr = spdifi_scb_desc;
1603 		spdifo_scb_desc->next_scb_ptr = fg_entry;
1604 		spdifo_scb_desc->sub_list_ptr = ins->the_null_scb;
1605 		spdifo_scb_desc->task_entry = spdifo_task;
1606 
1607 		/* this one is faked, as the parnet of SPDIFO task
1608 		   is the FG task tree */
1609 		fg_entry->parent_scb_ptr = spdifo_scb_desc;
1610 
1611 		/* for proc fs */
1612 		cs46xx_dsp_proc_register_scb_desc (chip,spdifo_scb_desc);
1613 		cs46xx_dsp_proc_register_scb_desc (chip,spdifi_scb_desc);
1614 		cs46xx_dsp_proc_register_scb_desc (chip,async_codec_scb_desc);
1615 
1616 		/* Async MASTER ENABLE, affects both SPDIF input and output */
1617 		snd_cs46xx_pokeBA0(chip, BA0_ASER_MASTER, 0x1 );
1618 	}
1619 
1620 	return 0;
1621 }
1622 
1623 static void cs46xx_dsp_disable_spdif_hw (struct snd_cs46xx *chip)
1624 {
1625 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1626 
1627 	/* set SPDIF output FIFO slot */
1628 	snd_cs46xx_pokeBA0(chip, BA0_ASER_FADDR, 0);
1629 
1630 	/* SPDIF output MASTER ENABLE */
1631 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CONTROL, 0);
1632 
1633 	/* right and left validate bit */
1634 	/*cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);*/
1635 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, 0x0);
1636 
1637 	/* clear fifo pointer */
1638 	cs46xx_poke_via_dsp (chip,SP_SPDIN_FIFOPTR, 0x0);
1639 
1640 	/* monitor state */
1641 	ins->spdif_status_out &= ~DSP_SPDIF_STATUS_HW_ENABLED;
1642 }
1643 
1644 int cs46xx_dsp_enable_spdif_hw (struct snd_cs46xx *chip)
1645 {
1646 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1647 
1648 	/* if hw-ctrl already enabled, turn off to reset logic ... */
1649 	cs46xx_dsp_disable_spdif_hw (chip);
1650 	udelay(50);
1651 
1652 	/* set SPDIF output FIFO slot */
1653 	snd_cs46xx_pokeBA0(chip, BA0_ASER_FADDR, ( 0x8000 | ((SP_SPDOUT_FIFO >> 4) << 4) ));
1654 
1655 	/* SPDIF output MASTER ENABLE */
1656 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CONTROL, 0x80000000);
1657 
1658 	/* right and left validate bit */
1659 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);
1660 
1661 	/* monitor state */
1662 	ins->spdif_status_out |= DSP_SPDIF_STATUS_HW_ENABLED;
1663 
1664 	return 0;
1665 }
1666 
1667 int cs46xx_dsp_enable_spdif_in (struct snd_cs46xx *chip)
1668 {
1669 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1670 
1671 	/* turn on amplifier */
1672 	chip->active_ctrl(chip, 1);
1673 	chip->amplifier_ctrl(chip, 1);
1674 
1675 	if (snd_BUG_ON(ins->asynch_rx_scb))
1676 		return -EINVAL;
1677 	if (snd_BUG_ON(!ins->spdif_in_src))
1678 		return -EINVAL;
1679 
1680 	mutex_lock(&chip->spos_mutex);
1681 
1682 	if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_INPUT_CTRL_ENABLED) ) {
1683 		/* time countdown enable */
1684 		cs46xx_poke_via_dsp (chip,SP_ASER_COUNTDOWN, 0x80000005);
1685 		/* NOTE: 80000005 value is just magic. With all values
1686 		   that I've tested this one seem to give the best result.
1687 		   Got no explication why. (Benny) */
1688 
1689 		/* SPDIF input MASTER ENABLE */
1690 		cs46xx_poke_via_dsp (chip,SP_SPDIN_CONTROL, 0x800003ff);
1691 
1692 		ins->spdif_status_out |= DSP_SPDIF_STATUS_INPUT_CTRL_ENABLED;
1693 	}
1694 
1695 	/* create and start the asynchronous receiver SCB */
1696 	ins->asynch_rx_scb = cs46xx_dsp_create_asynch_fg_rx_scb(chip,"AsynchFGRxSCB",
1697 								ASYNCRX_SCB_ADDR,
1698 								SPDIFI_SCB_INST,
1699 								SPDIFI_IP_OUTPUT_BUFFER1,
1700 								ins->spdif_in_src,
1701 								SCB_ON_PARENT_SUBLIST_SCB);
1702 
1703 	spin_lock_irq(&chip->reg_lock);
1704 
1705 	/* reset SPDIF input sample buffer pointer */
1706 	/*snd_cs46xx_poke (chip, (SPDIFI_SCB_INST + 0x0c) << 2,
1707 	  (SPDIFI_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC);*/
1708 
1709 	/* reset FIFO ptr */
1710 	/*cs46xx_poke_via_dsp (chip,SP_SPDIN_FIFOPTR, 0x0);*/
1711 	cs46xx_src_link(chip,ins->spdif_in_src);
1712 
1713 	/* unmute SRC volume */
1714 	cs46xx_dsp_scb_set_volume (chip,ins->spdif_in_src,0x7fff,0x7fff);
1715 
1716 	spin_unlock_irq(&chip->reg_lock);
1717 
1718 	/* set SPDIF input sample rate and unmute
1719 	   NOTE: only 48khz support for SPDIF input this time */
1720 	/* cs46xx_dsp_set_src_sample_rate(chip,ins->spdif_in_src,48000); */
1721 
1722 	/* monitor state */
1723 	ins->spdif_status_in = 1;
1724 	mutex_unlock(&chip->spos_mutex);
1725 
1726 	return 0;
1727 }
1728 
1729 int cs46xx_dsp_disable_spdif_in (struct snd_cs46xx *chip)
1730 {
1731 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1732 
1733 	if (snd_BUG_ON(!ins->asynch_rx_scb))
1734 		return -EINVAL;
1735 	if (snd_BUG_ON(!ins->spdif_in_src))
1736 		return -EINVAL;
1737 
1738 	mutex_lock(&chip->spos_mutex);
1739 
1740 	/* Remove the asynchronous receiver SCB */
1741 	cs46xx_dsp_remove_scb (chip,ins->asynch_rx_scb);
1742 	ins->asynch_rx_scb = NULL;
1743 
1744 	cs46xx_src_unlink(chip,ins->spdif_in_src);
1745 
1746 	/* monitor state */
1747 	ins->spdif_status_in = 0;
1748 	mutex_unlock(&chip->spos_mutex);
1749 
1750 	/* restore amplifier */
1751 	chip->active_ctrl(chip, -1);
1752 	chip->amplifier_ctrl(chip, -1);
1753 
1754 	return 0;
1755 }
1756 
1757 int cs46xx_dsp_enable_pcm_capture (struct snd_cs46xx *chip)
1758 {
1759 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1760 
1761 	if (snd_BUG_ON(ins->pcm_input))
1762 		return -EINVAL;
1763 	if (snd_BUG_ON(!ins->ref_snoop_scb))
1764 		return -EINVAL;
1765 
1766 	mutex_lock(&chip->spos_mutex);
1767 	ins->pcm_input = cs46xx_add_record_source(chip,ins->ref_snoop_scb,PCMSERIALIN_PCM_SCB_ADDR,
1768                                                   "PCMSerialInput_Wave");
1769 	mutex_unlock(&chip->spos_mutex);
1770 
1771 	return 0;
1772 }
1773 
1774 int cs46xx_dsp_disable_pcm_capture (struct snd_cs46xx *chip)
1775 {
1776 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1777 
1778 	if (snd_BUG_ON(!ins->pcm_input))
1779 		return -EINVAL;
1780 
1781 	mutex_lock(&chip->spos_mutex);
1782 	cs46xx_dsp_remove_scb (chip,ins->pcm_input);
1783 	ins->pcm_input = NULL;
1784 	mutex_unlock(&chip->spos_mutex);
1785 
1786 	return 0;
1787 }
1788 
1789 int cs46xx_dsp_enable_adc_capture (struct snd_cs46xx *chip)
1790 {
1791 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1792 
1793 	if (snd_BUG_ON(ins->adc_input))
1794 		return -EINVAL;
1795 	if (snd_BUG_ON(!ins->codec_in_scb))
1796 		return -EINVAL;
1797 
1798 	mutex_lock(&chip->spos_mutex);
1799 	ins->adc_input = cs46xx_add_record_source(chip,ins->codec_in_scb,PCMSERIALIN_SCB_ADDR,
1800 						  "PCMSerialInput_ADC");
1801 	mutex_unlock(&chip->spos_mutex);
1802 
1803 	return 0;
1804 }
1805 
1806 int cs46xx_dsp_disable_adc_capture (struct snd_cs46xx *chip)
1807 {
1808 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1809 
1810 	if (snd_BUG_ON(!ins->adc_input))
1811 		return -EINVAL;
1812 
1813 	mutex_lock(&chip->spos_mutex);
1814 	cs46xx_dsp_remove_scb (chip,ins->adc_input);
1815 	ins->adc_input = NULL;
1816 	mutex_unlock(&chip->spos_mutex);
1817 
1818 	return 0;
1819 }
1820 
1821 int cs46xx_poke_via_dsp (struct snd_cs46xx *chip, u32 address, u32 data)
1822 {
1823 	u32 temp;
1824 	int  i;
1825 
1826 	/* santiy check the parameters.  (These numbers are not 100% correct.  They are
1827 	   a rough guess from looking at the controller spec.) */
1828 	if (address < 0x8000 || address >= 0x9000)
1829 		return -EINVAL;
1830 
1831 	/* initialize the SP_IO_WRITE SCB with the data. */
1832 	temp = ( address << 16 ) | ( address & 0x0000FFFF);   /* offset 0 <-- address2 : address1 */
1833 
1834 	snd_cs46xx_poke(chip,( SPIOWRITE_SCB_ADDR      << 2), temp);
1835 	snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 1) << 2), data); /* offset 1 <-- data1 */
1836 	snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 2) << 2), data); /* offset 1 <-- data2 */
1837 
1838 	/* Poke this location to tell the task to start */
1839 	snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 6) << 2), SPIOWRITE_SCB_ADDR << 0x10);
1840 
1841 	/* Verify that the task ran */
1842 	for (i=0; i<25; i++) {
1843 		udelay(125);
1844 
1845 		temp =  snd_cs46xx_peek(chip,((SPIOWRITE_SCB_ADDR + 6) << 2));
1846 		if (temp == 0x00000000)
1847 			break;
1848 	}
1849 
1850 	if (i == 25) {
1851 		dev_err(chip->card->dev,
1852 			"dsp_spos: SPIOWriteTask not responding\n");
1853 		return -EBUSY;
1854 	}
1855 
1856 	return 0;
1857 }
1858 
1859 int cs46xx_dsp_set_dac_volume (struct snd_cs46xx * chip, u16 left, u16 right)
1860 {
1861 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1862 	struct dsp_scb_descriptor * scb;
1863 
1864 	mutex_lock(&chip->spos_mutex);
1865 
1866 	/* main output */
1867 	scb = ins->master_mix_scb->sub_list_ptr;
1868 	while (scb != ins->the_null_scb) {
1869 		cs46xx_dsp_scb_set_volume (chip,scb,left,right);
1870 		scb = scb->next_scb_ptr;
1871 	}
1872 
1873 	/* rear output */
1874 	scb = ins->rear_mix_scb->sub_list_ptr;
1875 	while (scb != ins->the_null_scb) {
1876 		cs46xx_dsp_scb_set_volume (chip,scb,left,right);
1877 		scb = scb->next_scb_ptr;
1878 	}
1879 
1880 	ins->dac_volume_left = left;
1881 	ins->dac_volume_right = right;
1882 
1883 	mutex_unlock(&chip->spos_mutex);
1884 
1885 	return 0;
1886 }
1887 
1888 int cs46xx_dsp_set_iec958_volume (struct snd_cs46xx * chip, u16 left, u16 right)
1889 {
1890 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1891 
1892 	mutex_lock(&chip->spos_mutex);
1893 
1894 	if (ins->asynch_rx_scb != NULL)
1895 		cs46xx_dsp_scb_set_volume (chip,ins->asynch_rx_scb,
1896 					   left,right);
1897 
1898 	ins->spdif_input_volume_left = left;
1899 	ins->spdif_input_volume_right = right;
1900 
1901 	mutex_unlock(&chip->spos_mutex);
1902 
1903 	return 0;
1904 }
1905 
1906 #ifdef CONFIG_PM_SLEEP
1907 int cs46xx_dsp_resume(struct snd_cs46xx * chip)
1908 {
1909 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1910 	int i, err;
1911 
1912 	/* clear parameter, sample and code areas */
1913 	snd_cs46xx_clear_BA1(chip, DSP_PARAMETER_BYTE_OFFSET,
1914 			     DSP_PARAMETER_BYTE_SIZE);
1915 	snd_cs46xx_clear_BA1(chip, DSP_SAMPLE_BYTE_OFFSET,
1916 			     DSP_SAMPLE_BYTE_SIZE);
1917 	snd_cs46xx_clear_BA1(chip, DSP_CODE_BYTE_OFFSET, DSP_CODE_BYTE_SIZE);
1918 
1919 	for (i = 0; i < ins->nmodules; i++) {
1920 		struct dsp_module_desc *module = &ins->modules[i];
1921 		struct dsp_segment_desc *seg;
1922 		u32 doffset, dsize;
1923 
1924 		seg = get_segment_desc(module, SEGTYPE_SP_PARAMETER);
1925 		err = dsp_load_parameter(chip, seg);
1926 		if (err < 0)
1927 			return err;
1928 
1929 		seg = get_segment_desc(module, SEGTYPE_SP_SAMPLE);
1930 		err = dsp_load_sample(chip, seg);
1931 		if (err < 0)
1932 			return err;
1933 
1934 		seg = get_segment_desc(module, SEGTYPE_SP_PROGRAM);
1935 		if (!seg)
1936 			continue;
1937 
1938 		doffset = seg->offset * 4 + module->load_address * 4
1939 			+ DSP_CODE_BYTE_OFFSET;
1940 		dsize   = seg->size * 4;
1941 		err = snd_cs46xx_download(chip,
1942 					  ins->code.data + module->load_address,
1943 					  doffset, dsize);
1944 		if (err < 0)
1945 			return err;
1946 	}
1947 
1948 	for (i = 0; i < ins->ntask; i++) {
1949 		struct dsp_task_descriptor *t = &ins->tasks[i];
1950 		_dsp_create_task_tree(chip, t->data, t->address, t->size);
1951 	}
1952 
1953 	for (i = 0; i < ins->nscb; i++) {
1954 		struct dsp_scb_descriptor *s = &ins->scbs[i];
1955 		if (s->deleted)
1956 			continue;
1957 		_dsp_create_scb(chip, s->data, s->address);
1958 	}
1959 	for (i = 0; i < ins->nscb; i++) {
1960 		struct dsp_scb_descriptor *s = &ins->scbs[i];
1961 		if (s->deleted)
1962 			continue;
1963 		if (s->updated)
1964 			cs46xx_dsp_spos_update_scb(chip, s);
1965 		if (s->volume_set)
1966 			cs46xx_dsp_scb_set_volume(chip, s,
1967 						  s->volume[0], s->volume[1]);
1968 	}
1969 	if (ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) {
1970 		cs46xx_dsp_enable_spdif_hw(chip);
1971 		snd_cs46xx_poke(chip, (ins->ref_snoop_scb->address + 2) << 2,
1972 				(OUTPUT_SNOOP_BUFFER + 0x10) << 0x10);
1973 		if (ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN)
1974 			cs46xx_poke_via_dsp(chip, SP_SPDOUT_CSUV,
1975 					    ins->spdif_csuv_stream);
1976 	}
1977 	if (chip->dsp_spos_instance->spdif_status_in) {
1978 		cs46xx_poke_via_dsp(chip, SP_ASER_COUNTDOWN, 0x80000005);
1979 		cs46xx_poke_via_dsp(chip, SP_SPDIN_CONTROL, 0x800003ff);
1980 	}
1981 	return 0;
1982 }
1983 #endif
1984