xref: /linux/sound/pci/cs46xx/dsp_spos.c (revision f3d9478b2ce468c3115b02ecae7e975990697f15)
1 /*
2  *   This program is free software; you can redistribute it and/or modify
3  *   it under the terms of the GNU General Public License as published by
4  *   the Free Software Foundation; either version 2 of the License, or
5  *   (at your option) any later version.
6  *
7  *   This program is distributed in the hope that it will be useful,
8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  *   GNU General Public License for more details.
11  *
12  *   You should have received a copy of the GNU General Public License
13  *   along with this program; if not, write to the Free Software
14  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
15  *
16  */
17 
18 /*
19  * 2002-07 Benny Sjostrand benny@hostmobility.com
20  */
21 
22 
23 #include <sound/driver.h>
24 #include <asm/io.h>
25 #include <linux/delay.h>
26 #include <linux/pci.h>
27 #include <linux/pm.h>
28 #include <linux/init.h>
29 #include <linux/slab.h>
30 #include <linux/vmalloc.h>
31 #include <linux/mutex.h>
32 
33 #include <sound/core.h>
34 #include <sound/control.h>
35 #include <sound/info.h>
36 #include <sound/asoundef.h>
37 #include <sound/cs46xx.h>
38 
39 #include "cs46xx_lib.h"
40 #include "dsp_spos.h"
41 
42 static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
43 				  struct dsp_scb_descriptor * fg_entry);
44 
45 static enum wide_opcode wide_opcodes[] = {
46 	WIDE_FOR_BEGIN_LOOP,
47 	WIDE_FOR_BEGIN_LOOP2,
48 	WIDE_COND_GOTO_ADDR,
49 	WIDE_COND_GOTO_CALL,
50 	WIDE_TBEQ_COND_GOTO_ADDR,
51 	WIDE_TBEQ_COND_CALL_ADDR,
52 	WIDE_TBEQ_NCOND_GOTO_ADDR,
53 	WIDE_TBEQ_NCOND_CALL_ADDR,
54 	WIDE_TBEQ_COND_GOTO1_ADDR,
55 	WIDE_TBEQ_COND_CALL1_ADDR,
56 	WIDE_TBEQ_NCOND_GOTOI_ADDR,
57 	WIDE_TBEQ_NCOND_CALL1_ADDR
58 };
59 
60 static int shadow_and_reallocate_code (struct snd_cs46xx * chip, u32 * data, u32 size,
61 				       u32 overlay_begin_address)
62 {
63 	unsigned int i = 0, j, nreallocated = 0;
64 	u32 hival,loval,address;
65 	u32 mop_operands,mop_type,wide_op;
66 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
67 
68 	snd_assert( ((size % 2) == 0), return -EINVAL);
69 
70 	while (i < size) {
71 		loval = data[i++];
72 		hival = data[i++];
73 
74 		if (ins->code.offset > 0) {
75 			mop_operands = (hival >> 6) & 0x03fff;
76 			mop_type = mop_operands >> 10;
77 
78 			/* check for wide type instruction */
79 			if (mop_type == 0 &&
80 			    (mop_operands & WIDE_LADD_INSTR_MASK) == 0 &&
81 			    (mop_operands & WIDE_INSTR_MASK) != 0) {
82 				wide_op = loval & 0x7f;
83 				for (j = 0;j < ARRAY_SIZE(wide_opcodes); ++j) {
84 					if (wide_opcodes[j] == wide_op) {
85 						/* need to reallocate instruction */
86 						address  = (hival & 0x00FFF) << 5;
87 						address |=  loval >> 15;
88 
89 						snd_printdd("handle_wideop[1]: %05x:%05x addr %04x\n",hival,loval,address);
90 
91 						if ( !(address & 0x8000) ) {
92 							address += (ins->code.offset / 2) - overlay_begin_address;
93 						} else {
94 							snd_printdd("handle_wideop[1]: ROM symbol not reallocated\n");
95 						}
96 
97 						hival &= 0xFF000;
98 						loval &= 0x07FFF;
99 
100 						hival |= ( (address >> 5)  & 0x00FFF);
101 						loval |= ( (address << 15) & 0xF8000);
102 
103 						address  = (hival & 0x00FFF) << 5;
104 						address |=  loval >> 15;
105 
106 						snd_printdd("handle_wideop:[2] %05x:%05x addr %04x\n",hival,loval,address);
107 						nreallocated ++;
108 					} /* wide_opcodes[j] == wide_op */
109 				} /* for */
110 			} /* mod_type == 0 ... */
111 		} /* ins->code.offset > 0 */
112 
113 		ins->code.data[ins->code.size++] = loval;
114 		ins->code.data[ins->code.size++] = hival;
115 	}
116 
117 	snd_printdd("dsp_spos: %d instructions reallocated\n",nreallocated);
118 	return nreallocated;
119 }
120 
121 static struct dsp_segment_desc * get_segment_desc (struct dsp_module_desc * module, int seg_type)
122 {
123 	int i;
124 	for (i = 0;i < module->nsegments; ++i) {
125 		if (module->segments[i].segment_type == seg_type) {
126 			return (module->segments + i);
127 		}
128 	}
129 
130 	return NULL;
131 };
132 
133 static int find_free_symbol_index (struct dsp_spos_instance * ins)
134 {
135 	int index = ins->symbol_table.nsymbols,i;
136 
137 	for (i = ins->symbol_table.highest_frag_index; i < ins->symbol_table.nsymbols; ++i) {
138 		if (ins->symbol_table.symbols[i].deleted) {
139 			index = i;
140 			break;
141 		}
142 	}
143 
144 	return index;
145 }
146 
147 static int add_symbols (struct snd_cs46xx * chip, struct dsp_module_desc * module)
148 {
149 	int i;
150 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
151 
152 	if (module->symbol_table.nsymbols > 0) {
153 		if (!strcmp(module->symbol_table.symbols[0].symbol_name, "OVERLAYBEGINADDRESS") &&
154 		    module->symbol_table.symbols[0].symbol_type == SYMBOL_CONSTANT ) {
155 			module->overlay_begin_address = module->symbol_table.symbols[0].address;
156 		}
157 	}
158 
159 	for (i = 0;i < module->symbol_table.nsymbols; ++i) {
160 		if (ins->symbol_table.nsymbols == (DSP_MAX_SYMBOLS - 1)) {
161 			snd_printk(KERN_ERR "dsp_spos: symbol table is full\n");
162 			return -ENOMEM;
163 		}
164 
165 
166 		if (cs46xx_dsp_lookup_symbol(chip,
167 					     module->symbol_table.symbols[i].symbol_name,
168 					     module->symbol_table.symbols[i].symbol_type) == NULL) {
169 
170 			ins->symbol_table.symbols[ins->symbol_table.nsymbols] = module->symbol_table.symbols[i];
171 			ins->symbol_table.symbols[ins->symbol_table.nsymbols].address += ((ins->code.offset / 2) - module->overlay_begin_address);
172 			ins->symbol_table.symbols[ins->symbol_table.nsymbols].module = module;
173 			ins->symbol_table.symbols[ins->symbol_table.nsymbols].deleted = 0;
174 
175 			if (ins->symbol_table.nsymbols > ins->symbol_table.highest_frag_index)
176 				ins->symbol_table.highest_frag_index = ins->symbol_table.nsymbols;
177 
178 			ins->symbol_table.nsymbols++;
179 		} else {
180           /* if (0) printk ("dsp_spos: symbol <%s> duplicated, probably nothing wrong with that (Cirrus?)\n",
181                              module->symbol_table.symbols[i].symbol_name); */
182 		}
183 	}
184 
185 	return 0;
186 }
187 
188 static struct dsp_symbol_entry *
189 add_symbol (struct snd_cs46xx * chip, char * symbol_name, u32 address, int type)
190 {
191 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
192 	struct dsp_symbol_entry * symbol = NULL;
193 	int index;
194 
195 	if (ins->symbol_table.nsymbols == (DSP_MAX_SYMBOLS - 1)) {
196 		snd_printk(KERN_ERR "dsp_spos: symbol table is full\n");
197 		return NULL;
198 	}
199 
200 	if (cs46xx_dsp_lookup_symbol(chip,
201 				     symbol_name,
202 				     type) != NULL) {
203 		snd_printk(KERN_ERR "dsp_spos: symbol <%s> duplicated\n", symbol_name);
204 		return NULL;
205 	}
206 
207 	index = find_free_symbol_index (ins);
208 
209 	strcpy (ins->symbol_table.symbols[index].symbol_name, symbol_name);
210 	ins->symbol_table.symbols[index].address = address;
211 	ins->symbol_table.symbols[index].symbol_type = type;
212 	ins->symbol_table.symbols[index].module = NULL;
213 	ins->symbol_table.symbols[index].deleted = 0;
214 	symbol = (ins->symbol_table.symbols + index);
215 
216 	if (index > ins->symbol_table.highest_frag_index)
217 		ins->symbol_table.highest_frag_index = index;
218 
219 	if (index == ins->symbol_table.nsymbols)
220 		ins->symbol_table.nsymbols++; /* no frag. in list */
221 
222 	return symbol;
223 }
224 
225 struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip)
226 {
227 	struct dsp_spos_instance * ins = kzalloc(sizeof(struct dsp_spos_instance), GFP_KERNEL);
228 
229 	if (ins == NULL)
230 		return NULL;
231 
232 	/* better to use vmalloc for this big table */
233 	ins->symbol_table.nsymbols = 0;
234 	ins->symbol_table.symbols = vmalloc(sizeof(struct dsp_symbol_entry) *
235 					    DSP_MAX_SYMBOLS);
236 	ins->symbol_table.highest_frag_index = 0;
237 
238 	if (ins->symbol_table.symbols == NULL) {
239 		cs46xx_dsp_spos_destroy(chip);
240 		goto error;
241 	}
242 
243 	ins->code.offset = 0;
244 	ins->code.size = 0;
245 	ins->code.data = kmalloc(DSP_CODE_BYTE_SIZE, GFP_KERNEL);
246 
247 	if (ins->code.data == NULL) {
248 		cs46xx_dsp_spos_destroy(chip);
249 		goto error;
250 	}
251 
252 	ins->nscb = 0;
253 	ins->ntask = 0;
254 
255 	ins->nmodules = 0;
256 	ins->modules = kmalloc(sizeof(struct dsp_module_desc) * DSP_MAX_MODULES, GFP_KERNEL);
257 
258 	if (ins->modules == NULL) {
259 		cs46xx_dsp_spos_destroy(chip);
260 		goto error;
261 	}
262 
263 	/* default SPDIF input sample rate
264 	   to 48000 khz */
265 	ins->spdif_in_sample_rate = 48000;
266 
267 	/* maximize volume */
268 	ins->dac_volume_right = 0x8000;
269 	ins->dac_volume_left = 0x8000;
270 	ins->spdif_input_volume_right = 0x8000;
271 	ins->spdif_input_volume_left = 0x8000;
272 
273 	/* set left and right validity bits and
274 	   default channel status */
275 	ins->spdif_csuv_default =
276 		ins->spdif_csuv_stream =
277 	 /* byte 0 */  ((unsigned int)_wrap_all_bits(  (SNDRV_PCM_DEFAULT_CON_SPDIF        & 0xff)) << 24) |
278 	 /* byte 1 */  ((unsigned int)_wrap_all_bits( ((SNDRV_PCM_DEFAULT_CON_SPDIF >> 8) & 0xff)) << 16) |
279 	 /* byte 3 */   (unsigned int)_wrap_all_bits(  (SNDRV_PCM_DEFAULT_CON_SPDIF >> 24) & 0xff) |
280 	 /* left and right validity bits */ (1 << 13) | (1 << 12);
281 
282 	return ins;
283 
284 error:
285 	kfree(ins);
286 	return NULL;
287 }
288 
289 void  cs46xx_dsp_spos_destroy (struct snd_cs46xx * chip)
290 {
291 	int i;
292 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
293 
294 	snd_assert(ins != NULL, return);
295 
296 	mutex_lock(&chip->spos_mutex);
297 	for (i = 0; i < ins->nscb; ++i) {
298 		if (ins->scbs[i].deleted) continue;
299 
300 		cs46xx_dsp_proc_free_scb_desc ( (ins->scbs + i) );
301 	}
302 
303 	kfree(ins->code.data);
304 	vfree(ins->symbol_table.symbols);
305 	kfree(ins->modules);
306 	kfree(ins);
307 	mutex_unlock(&chip->spos_mutex);
308 }
309 
310 int cs46xx_dsp_load_module (struct snd_cs46xx * chip, struct dsp_module_desc * module)
311 {
312 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
313 	struct dsp_segment_desc * code = get_segment_desc (module,SEGTYPE_SP_PROGRAM);
314 	struct dsp_segment_desc * parameter = get_segment_desc (module,SEGTYPE_SP_PARAMETER);
315 	struct dsp_segment_desc * sample = get_segment_desc (module,SEGTYPE_SP_SAMPLE);
316 	u32 doffset, dsize;
317 
318 	if (ins->nmodules == DSP_MAX_MODULES - 1) {
319 		snd_printk(KERN_ERR "dsp_spos: to many modules loaded into DSP\n");
320 		return -ENOMEM;
321 	}
322 
323 	snd_printdd("dsp_spos: loading module %s into DSP\n", module->module_name);
324 
325 	if (ins->nmodules == 0) {
326 		snd_printdd("dsp_spos: clearing parameter area\n");
327 		snd_cs46xx_clear_BA1(chip, DSP_PARAMETER_BYTE_OFFSET, DSP_PARAMETER_BYTE_SIZE);
328 	}
329 
330 	if (parameter == NULL) {
331 		snd_printdd("dsp_spos: module got no parameter segment\n");
332 	} else {
333 		if (ins->nmodules > 0) {
334 			snd_printk(KERN_WARNING "dsp_spos: WARNING current parameter data may be overwriten!\n");
335 		}
336 
337 		doffset = (parameter->offset * 4 + DSP_PARAMETER_BYTE_OFFSET);
338 		dsize   = parameter->size * 4;
339 
340 		snd_printdd("dsp_spos: downloading parameter data to chip (%08x-%08x)\n",
341 			    doffset,doffset + dsize);
342 
343 		if (snd_cs46xx_download (chip, parameter->data, doffset, dsize)) {
344 			snd_printk(KERN_ERR "dsp_spos: failed to download parameter data to DSP\n");
345 			return -EINVAL;
346 		}
347 	}
348 
349 	if (ins->nmodules == 0) {
350 		snd_printdd("dsp_spos: clearing sample area\n");
351 		snd_cs46xx_clear_BA1(chip, DSP_SAMPLE_BYTE_OFFSET, DSP_SAMPLE_BYTE_SIZE);
352 	}
353 
354 	if (sample == NULL) {
355 		snd_printdd("dsp_spos: module got no sample segment\n");
356 	} else {
357 		if (ins->nmodules > 0) {
358 			snd_printk(KERN_WARNING "dsp_spos: WARNING current sample data may be overwriten\n");
359 		}
360 
361 		doffset = (sample->offset * 4  + DSP_SAMPLE_BYTE_OFFSET);
362 		dsize   =  sample->size * 4;
363 
364 		snd_printdd("dsp_spos: downloading sample data to chip (%08x-%08x)\n",
365 			    doffset,doffset + dsize);
366 
367 		if (snd_cs46xx_download (chip,sample->data,doffset,dsize)) {
368 			snd_printk(KERN_ERR "dsp_spos: failed to sample data to DSP\n");
369 			return -EINVAL;
370 		}
371 	}
372 
373 
374 	if (ins->nmodules == 0) {
375 		snd_printdd("dsp_spos: clearing code area\n");
376 		snd_cs46xx_clear_BA1(chip, DSP_CODE_BYTE_OFFSET, DSP_CODE_BYTE_SIZE);
377 	}
378 
379 	if (code == NULL) {
380 		snd_printdd("dsp_spos: module got no code segment\n");
381 	} else {
382 		if (ins->code.offset + code->size > DSP_CODE_BYTE_SIZE) {
383 			snd_printk(KERN_ERR "dsp_spos: no space available in DSP\n");
384 			return -ENOMEM;
385 		}
386 
387 		module->load_address = ins->code.offset;
388 		module->overlay_begin_address = 0x000;
389 
390 		/* if module has a code segment it must have
391 		   symbol table */
392 		snd_assert(module->symbol_table.symbols != NULL ,return -ENOMEM);
393 		if (add_symbols(chip,module)) {
394 			snd_printk(KERN_ERR "dsp_spos: failed to load symbol table\n");
395 			return -ENOMEM;
396 		}
397 
398 		doffset = (code->offset * 4 + ins->code.offset * 4 + DSP_CODE_BYTE_OFFSET);
399 		dsize   = code->size * 4;
400 		snd_printdd("dsp_spos: downloading code to chip (%08x-%08x)\n",
401 			    doffset,doffset + dsize);
402 
403 		module->nfixups = shadow_and_reallocate_code(chip,code->data,code->size,module->overlay_begin_address);
404 
405 		if (snd_cs46xx_download (chip,(ins->code.data + ins->code.offset),doffset,dsize)) {
406 			snd_printk(KERN_ERR "dsp_spos: failed to download code to DSP\n");
407 			return -EINVAL;
408 		}
409 
410 		ins->code.offset += code->size;
411 	}
412 
413 	/* NOTE: module segments and symbol table must be
414 	   statically allocated. Case that module data is
415 	   not generated by the ospparser */
416 	ins->modules[ins->nmodules] = *module;
417 	ins->nmodules++;
418 
419 	return 0;
420 }
421 
422 struct dsp_symbol_entry *
423 cs46xx_dsp_lookup_symbol (struct snd_cs46xx * chip, char * symbol_name, int symbol_type)
424 {
425 	int i;
426 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
427 
428 	for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {
429 
430 		if (ins->symbol_table.symbols[i].deleted)
431 			continue;
432 
433 		if (!strcmp(ins->symbol_table.symbols[i].symbol_name,symbol_name) &&
434 		    ins->symbol_table.symbols[i].symbol_type == symbol_type) {
435 			return (ins->symbol_table.symbols + i);
436 		}
437 	}
438 
439 #if 0
440 	printk ("dsp_spos: symbol <%s> type %02x not found\n",
441 		symbol_name,symbol_type);
442 #endif
443 
444 	return NULL;
445 }
446 
447 
448 #ifdef CONFIG_PROC_FS
449 static struct dsp_symbol_entry *
450 cs46xx_dsp_lookup_symbol_addr (struct snd_cs46xx * chip, u32 address, int symbol_type)
451 {
452 	int i;
453 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
454 
455 	for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {
456 
457 		if (ins->symbol_table.symbols[i].deleted)
458 			continue;
459 
460 		if (ins->symbol_table.symbols[i].address == address &&
461 		    ins->symbol_table.symbols[i].symbol_type == symbol_type) {
462 			return (ins->symbol_table.symbols + i);
463 		}
464 	}
465 
466 
467 	return NULL;
468 }
469 
470 
471 static void cs46xx_dsp_proc_symbol_table_read (struct snd_info_entry *entry,
472 					       struct snd_info_buffer *buffer)
473 {
474 	struct snd_cs46xx *chip = entry->private_data;
475 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
476 	int i;
477 
478 	snd_iprintf(buffer, "SYMBOLS:\n");
479 	for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {
480 		char *module_str = "system";
481 
482 		if (ins->symbol_table.symbols[i].deleted)
483 			continue;
484 
485 		if (ins->symbol_table.symbols[i].module != NULL) {
486 			module_str = ins->symbol_table.symbols[i].module->module_name;
487 		}
488 
489 
490 		snd_iprintf(buffer, "%04X <%02X> %s [%s]\n",
491 			    ins->symbol_table.symbols[i].address,
492 			    ins->symbol_table.symbols[i].symbol_type,
493 			    ins->symbol_table.symbols[i].symbol_name,
494 			    module_str);
495 	}
496 }
497 
498 
499 static void cs46xx_dsp_proc_modules_read (struct snd_info_entry *entry,
500 					  struct snd_info_buffer *buffer)
501 {
502 	struct snd_cs46xx *chip = entry->private_data;
503 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
504 	int i,j;
505 
506 	mutex_lock(&chip->spos_mutex);
507 	snd_iprintf(buffer, "MODULES:\n");
508 	for ( i = 0; i < ins->nmodules; ++i ) {
509 		snd_iprintf(buffer, "\n%s:\n", ins->modules[i].module_name);
510 		snd_iprintf(buffer, "   %d symbols\n", ins->modules[i].symbol_table.nsymbols);
511 		snd_iprintf(buffer, "   %d fixups\n", ins->modules[i].nfixups);
512 
513 		for (j = 0; j < ins->modules[i].nsegments; ++ j) {
514 			struct dsp_segment_desc * desc = (ins->modules[i].segments + j);
515 			snd_iprintf(buffer, "   segment %02x offset %08x size %08x\n",
516 				    desc->segment_type,desc->offset, desc->size);
517 		}
518 	}
519 	mutex_unlock(&chip->spos_mutex);
520 }
521 
522 static void cs46xx_dsp_proc_task_tree_read (struct snd_info_entry *entry,
523 					    struct snd_info_buffer *buffer)
524 {
525 	struct snd_cs46xx *chip = entry->private_data;
526 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
527 	int i, j, col;
528 	void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
529 
530 	mutex_lock(&chip->spos_mutex);
531 	snd_iprintf(buffer, "TASK TREES:\n");
532 	for ( i = 0; i < ins->ntask; ++i) {
533 		snd_iprintf(buffer,"\n%04x %s:\n",ins->tasks[i].address,ins->tasks[i].task_name);
534 
535 		for (col = 0,j = 0;j < ins->tasks[i].size; j++,col++) {
536 			u32 val;
537 			if (col == 4) {
538 				snd_iprintf(buffer,"\n");
539 				col = 0;
540 			}
541 			val = readl(dst + (ins->tasks[i].address + j) * sizeof(u32));
542 			snd_iprintf(buffer,"%08x ",val);
543 		}
544 	}
545 
546 	snd_iprintf(buffer,"\n");
547 	mutex_unlock(&chip->spos_mutex);
548 }
549 
550 static void cs46xx_dsp_proc_scb_read (struct snd_info_entry *entry,
551 				      struct snd_info_buffer *buffer)
552 {
553 	struct snd_cs46xx *chip = entry->private_data;
554 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
555 	int i;
556 
557 	mutex_lock(&chip->spos_mutex);
558 	snd_iprintf(buffer, "SCB's:\n");
559 	for ( i = 0; i < ins->nscb; ++i) {
560 		if (ins->scbs[i].deleted)
561 			continue;
562 		snd_iprintf(buffer,"\n%04x %s:\n\n",ins->scbs[i].address,ins->scbs[i].scb_name);
563 
564 		if (ins->scbs[i].parent_scb_ptr != NULL) {
565 			snd_iprintf(buffer,"parent [%s:%04x] ",
566 				    ins->scbs[i].parent_scb_ptr->scb_name,
567 				    ins->scbs[i].parent_scb_ptr->address);
568 		} else snd_iprintf(buffer,"parent [none] ");
569 
570 		snd_iprintf(buffer,"sub_list_ptr [%s:%04x]\nnext_scb_ptr [%s:%04x]  task_entry [%s:%04x]\n",
571 			    ins->scbs[i].sub_list_ptr->scb_name,
572 			    ins->scbs[i].sub_list_ptr->address,
573 			    ins->scbs[i].next_scb_ptr->scb_name,
574 			    ins->scbs[i].next_scb_ptr->address,
575 			    ins->scbs[i].task_entry->symbol_name,
576 			    ins->scbs[i].task_entry->address);
577 	}
578 
579 	snd_iprintf(buffer,"\n");
580 	mutex_unlock(&chip->spos_mutex);
581 }
582 
583 static void cs46xx_dsp_proc_parameter_dump_read (struct snd_info_entry *entry,
584 						 struct snd_info_buffer *buffer)
585 {
586 	struct snd_cs46xx *chip = entry->private_data;
587 	/*struct dsp_spos_instance * ins = chip->dsp_spos_instance; */
588 	unsigned int i, col = 0;
589 	void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
590 	struct dsp_symbol_entry * symbol;
591 
592 	for (i = 0;i < DSP_PARAMETER_BYTE_SIZE; i += sizeof(u32),col ++) {
593 		if (col == 4) {
594 			snd_iprintf(buffer,"\n");
595 			col = 0;
596 		}
597 
598 		if ( (symbol = cs46xx_dsp_lookup_symbol_addr (chip,i / sizeof(u32), SYMBOL_PARAMETER)) != NULL) {
599 			col = 0;
600 			snd_iprintf (buffer,"\n%s:\n",symbol->symbol_name);
601 		}
602 
603 		if (col == 0) {
604 			snd_iprintf(buffer, "%04X ", i / (unsigned int)sizeof(u32));
605 		}
606 
607 		snd_iprintf(buffer,"%08X ",readl(dst + i));
608 	}
609 }
610 
611 static void cs46xx_dsp_proc_sample_dump_read (struct snd_info_entry *entry,
612 					      struct snd_info_buffer *buffer)
613 {
614 	struct snd_cs46xx *chip = entry->private_data;
615 	int i,col = 0;
616 	void __iomem *dst = chip->region.idx[2].remap_addr;
617 
618 	snd_iprintf(buffer,"PCMREADER:\n");
619 	for (i = PCM_READER_BUF1;i < PCM_READER_BUF1 + 0x30; i += sizeof(u32),col ++) {
620 		if (col == 4) {
621 			snd_iprintf(buffer,"\n");
622 			col = 0;
623 		}
624 
625 		if (col == 0) {
626 			snd_iprintf(buffer, "%04X ",i);
627 		}
628 
629 		snd_iprintf(buffer,"%08X ",readl(dst + i));
630 	}
631 
632 	snd_iprintf(buffer,"\nMIX_SAMPLE_BUF1:\n");
633 
634 	col = 0;
635 	for (i = MIX_SAMPLE_BUF1;i < MIX_SAMPLE_BUF1 + 0x40; i += sizeof(u32),col ++) {
636 		if (col == 4) {
637 			snd_iprintf(buffer,"\n");
638 			col = 0;
639 		}
640 
641 		if (col == 0) {
642 			snd_iprintf(buffer, "%04X ",i);
643 		}
644 
645 		snd_iprintf(buffer,"%08X ",readl(dst + i));
646 	}
647 
648 	snd_iprintf(buffer,"\nSRC_TASK_SCB1:\n");
649 	col = 0;
650 	for (i = 0x2480 ; i < 0x2480 + 0x40 ; i += sizeof(u32),col ++) {
651 		if (col == 4) {
652 			snd_iprintf(buffer,"\n");
653 			col = 0;
654 		}
655 
656 		if (col == 0) {
657 			snd_iprintf(buffer, "%04X ",i);
658 		}
659 
660 		snd_iprintf(buffer,"%08X ",readl(dst + i));
661 	}
662 
663 
664 	snd_iprintf(buffer,"\nSPDIFO_BUFFER:\n");
665 	col = 0;
666 	for (i = SPDIFO_IP_OUTPUT_BUFFER1;i < SPDIFO_IP_OUTPUT_BUFFER1 + 0x30; i += sizeof(u32),col ++) {
667 		if (col == 4) {
668 			snd_iprintf(buffer,"\n");
669 			col = 0;
670 		}
671 
672 		if (col == 0) {
673 			snd_iprintf(buffer, "%04X ",i);
674 		}
675 
676 		snd_iprintf(buffer,"%08X ",readl(dst + i));
677 	}
678 
679 	snd_iprintf(buffer,"\n...\n");
680 	col = 0;
681 
682 	for (i = SPDIFO_IP_OUTPUT_BUFFER1+0xD0;i < SPDIFO_IP_OUTPUT_BUFFER1 + 0x110; i += sizeof(u32),col ++) {
683 		if (col == 4) {
684 			snd_iprintf(buffer,"\n");
685 			col = 0;
686 		}
687 
688 		if (col == 0) {
689 			snd_iprintf(buffer, "%04X ",i);
690 		}
691 
692 		snd_iprintf(buffer,"%08X ",readl(dst + i));
693 	}
694 
695 
696 	snd_iprintf(buffer,"\nOUTPUT_SNOOP:\n");
697 	col = 0;
698 	for (i = OUTPUT_SNOOP_BUFFER;i < OUTPUT_SNOOP_BUFFER + 0x40; i += sizeof(u32),col ++) {
699 		if (col == 4) {
700 			snd_iprintf(buffer,"\n");
701 			col = 0;
702 		}
703 
704 		if (col == 0) {
705 			snd_iprintf(buffer, "%04X ",i);
706 		}
707 
708 		snd_iprintf(buffer,"%08X ",readl(dst + i));
709 	}
710 
711 	snd_iprintf(buffer,"\nCODEC_INPUT_BUF1: \n");
712 	col = 0;
713 	for (i = CODEC_INPUT_BUF1;i < CODEC_INPUT_BUF1 + 0x40; i += sizeof(u32),col ++) {
714 		if (col == 4) {
715 			snd_iprintf(buffer,"\n");
716 			col = 0;
717 		}
718 
719 		if (col == 0) {
720 			snd_iprintf(buffer, "%04X ",i);
721 		}
722 
723 		snd_iprintf(buffer,"%08X ",readl(dst + i));
724 	}
725 #if 0
726 	snd_iprintf(buffer,"\nWRITE_BACK_BUF1: \n");
727 	col = 0;
728 	for (i = WRITE_BACK_BUF1;i < WRITE_BACK_BUF1 + 0x40; i += sizeof(u32),col ++) {
729 		if (col == 4) {
730 			snd_iprintf(buffer,"\n");
731 			col = 0;
732 		}
733 
734 		if (col == 0) {
735 			snd_iprintf(buffer, "%04X ",i);
736 		}
737 
738 		snd_iprintf(buffer,"%08X ",readl(dst + i));
739 	}
740 #endif
741 
742 	snd_iprintf(buffer,"\nSPDIFI_IP_OUTPUT_BUFFER1: \n");
743 	col = 0;
744 	for (i = SPDIFI_IP_OUTPUT_BUFFER1;i < SPDIFI_IP_OUTPUT_BUFFER1 + 0x80; i += sizeof(u32),col ++) {
745 		if (col == 4) {
746 			snd_iprintf(buffer,"\n");
747 			col = 0;
748 		}
749 
750 		if (col == 0) {
751 			snd_iprintf(buffer, "%04X ",i);
752 		}
753 
754 		snd_iprintf(buffer,"%08X ",readl(dst + i));
755 	}
756 	snd_iprintf(buffer,"\n");
757 }
758 
759 int cs46xx_dsp_proc_init (struct snd_card *card, struct snd_cs46xx *chip)
760 {
761 	struct snd_info_entry *entry;
762 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
763 	int i;
764 
765 	ins->snd_card = card;
766 
767 	if ((entry = snd_info_create_card_entry(card, "dsp", card->proc_root)) != NULL) {
768 		entry->content = SNDRV_INFO_CONTENT_TEXT;
769 		entry->mode = S_IFDIR | S_IRUGO | S_IXUGO;
770 
771 		if (snd_info_register(entry) < 0) {
772 			snd_info_free_entry(entry);
773 			entry = NULL;
774 		}
775 	}
776 
777 	ins->proc_dsp_dir = entry;
778 
779 	if (!ins->proc_dsp_dir)
780 		return -ENOMEM;
781 
782 	if ((entry = snd_info_create_card_entry(card, "spos_symbols", ins->proc_dsp_dir)) != NULL) {
783 		entry->content = SNDRV_INFO_CONTENT_TEXT;
784 		entry->private_data = chip;
785 		entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
786 		entry->c.text.read = cs46xx_dsp_proc_symbol_table_read;
787 		if (snd_info_register(entry) < 0) {
788 			snd_info_free_entry(entry);
789 			entry = NULL;
790 		}
791 	}
792 	ins->proc_sym_info_entry = entry;
793 
794 	if ((entry = snd_info_create_card_entry(card, "spos_modules", ins->proc_dsp_dir)) != NULL) {
795 		entry->content = SNDRV_INFO_CONTENT_TEXT;
796 		entry->private_data = chip;
797 		entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
798 		entry->c.text.read = cs46xx_dsp_proc_modules_read;
799 		if (snd_info_register(entry) < 0) {
800 			snd_info_free_entry(entry);
801 			entry = NULL;
802 		}
803 	}
804 	ins->proc_modules_info_entry = entry;
805 
806 	if ((entry = snd_info_create_card_entry(card, "parameter", ins->proc_dsp_dir)) != NULL) {
807 		entry->content = SNDRV_INFO_CONTENT_TEXT;
808 		entry->private_data = chip;
809 		entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
810 		entry->c.text.read = cs46xx_dsp_proc_parameter_dump_read;
811 		if (snd_info_register(entry) < 0) {
812 			snd_info_free_entry(entry);
813 			entry = NULL;
814 		}
815 	}
816 	ins->proc_parameter_dump_info_entry = entry;
817 
818 	if ((entry = snd_info_create_card_entry(card, "sample", ins->proc_dsp_dir)) != NULL) {
819 		entry->content = SNDRV_INFO_CONTENT_TEXT;
820 		entry->private_data = chip;
821 		entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
822 		entry->c.text.read = cs46xx_dsp_proc_sample_dump_read;
823 		if (snd_info_register(entry) < 0) {
824 			snd_info_free_entry(entry);
825 			entry = NULL;
826 		}
827 	}
828 	ins->proc_sample_dump_info_entry = entry;
829 
830 	if ((entry = snd_info_create_card_entry(card, "task_tree", ins->proc_dsp_dir)) != NULL) {
831 		entry->content = SNDRV_INFO_CONTENT_TEXT;
832 		entry->private_data = chip;
833 		entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
834 		entry->c.text.read = cs46xx_dsp_proc_task_tree_read;
835 		if (snd_info_register(entry) < 0) {
836 			snd_info_free_entry(entry);
837 			entry = NULL;
838 		}
839 	}
840 	ins->proc_task_info_entry = entry;
841 
842 	if ((entry = snd_info_create_card_entry(card, "scb_info", ins->proc_dsp_dir)) != NULL) {
843 		entry->content = SNDRV_INFO_CONTENT_TEXT;
844 		entry->private_data = chip;
845 		entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
846 		entry->c.text.read = cs46xx_dsp_proc_scb_read;
847 		if (snd_info_register(entry) < 0) {
848 			snd_info_free_entry(entry);
849 			entry = NULL;
850 		}
851 	}
852 	ins->proc_scb_info_entry = entry;
853 
854 	mutex_lock(&chip->spos_mutex);
855 	/* register/update SCB's entries on proc */
856 	for (i = 0; i < ins->nscb; ++i) {
857 		if (ins->scbs[i].deleted) continue;
858 
859 		cs46xx_dsp_proc_register_scb_desc (chip, (ins->scbs + i));
860 	}
861 	mutex_unlock(&chip->spos_mutex);
862 
863 	return 0;
864 }
865 
866 int cs46xx_dsp_proc_done (struct snd_cs46xx *chip)
867 {
868 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
869 	int i;
870 
871 	if (ins->proc_sym_info_entry) {
872 		snd_info_unregister(ins->proc_sym_info_entry);
873 		ins->proc_sym_info_entry = NULL;
874 	}
875 
876 	if (ins->proc_modules_info_entry) {
877 		snd_info_unregister(ins->proc_modules_info_entry);
878 		ins->proc_modules_info_entry = NULL;
879 	}
880 
881 	if (ins->proc_parameter_dump_info_entry) {
882 		snd_info_unregister(ins->proc_parameter_dump_info_entry);
883 		ins->proc_parameter_dump_info_entry = NULL;
884 	}
885 
886 	if (ins->proc_sample_dump_info_entry) {
887 		snd_info_unregister(ins->proc_sample_dump_info_entry);
888 		ins->proc_sample_dump_info_entry = NULL;
889 	}
890 
891 	if (ins->proc_scb_info_entry) {
892 		snd_info_unregister(ins->proc_scb_info_entry);
893 		ins->proc_scb_info_entry = NULL;
894 	}
895 
896 	if (ins->proc_task_info_entry) {
897 		snd_info_unregister(ins->proc_task_info_entry);
898 		ins->proc_task_info_entry = NULL;
899 	}
900 
901 	mutex_lock(&chip->spos_mutex);
902 	for (i = 0; i < ins->nscb; ++i) {
903 		if (ins->scbs[i].deleted) continue;
904 		cs46xx_dsp_proc_free_scb_desc ( (ins->scbs + i) );
905 	}
906 	mutex_unlock(&chip->spos_mutex);
907 
908 	if (ins->proc_dsp_dir) {
909 		snd_info_unregister (ins->proc_dsp_dir);
910 		ins->proc_dsp_dir = NULL;
911 	}
912 
913 	return 0;
914 }
915 #endif /* CONFIG_PROC_FS */
916 
917 static int debug_tree;
918 static void _dsp_create_task_tree (struct snd_cs46xx *chip, u32 * task_data,
919 				   u32  dest, int size)
920 {
921 	void __iomem *spdst = chip->region.idx[1].remap_addr +
922 		DSP_PARAMETER_BYTE_OFFSET + dest * sizeof(u32);
923 	int i;
924 
925 	for (i = 0; i < size; ++i) {
926 		if (debug_tree) printk ("addr %p, val %08x\n",spdst,task_data[i]);
927 		writel(task_data[i],spdst);
928 		spdst += sizeof(u32);
929 	}
930 }
931 
932 static int debug_scb;
933 static void _dsp_create_scb (struct snd_cs46xx *chip, u32 * scb_data, u32 dest)
934 {
935 	void __iomem *spdst = chip->region.idx[1].remap_addr +
936 		DSP_PARAMETER_BYTE_OFFSET + dest * sizeof(u32);
937 	int i;
938 
939 	for (i = 0; i < 0x10; ++i) {
940 		if (debug_scb) printk ("addr %p, val %08x\n",spdst,scb_data[i]);
941 		writel(scb_data[i],spdst);
942 		spdst += sizeof(u32);
943 	}
944 }
945 
946 static int find_free_scb_index (struct dsp_spos_instance * ins)
947 {
948 	int index = ins->nscb, i;
949 
950 	for (i = ins->scb_highest_frag_index; i < ins->nscb; ++i) {
951 		if (ins->scbs[i].deleted) {
952 			index = i;
953 			break;
954 		}
955 	}
956 
957 	return index;
958 }
959 
960 static struct dsp_scb_descriptor * _map_scb (struct snd_cs46xx *chip, char * name, u32 dest)
961 {
962 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
963 	struct dsp_scb_descriptor * desc = NULL;
964 	int index;
965 
966 	if (ins->nscb == DSP_MAX_SCB_DESC - 1) {
967 		snd_printk(KERN_ERR "dsp_spos: got no place for other SCB\n");
968 		return NULL;
969 	}
970 
971 	index = find_free_scb_index (ins);
972 
973 	strcpy(ins->scbs[index].scb_name, name);
974 	ins->scbs[index].address = dest;
975 	ins->scbs[index].index = index;
976 	ins->scbs[index].proc_info = NULL;
977 	ins->scbs[index].ref_count = 1;
978 	ins->scbs[index].deleted = 0;
979 	spin_lock_init(&ins->scbs[index].lock);
980 
981 	desc = (ins->scbs + index);
982 	ins->scbs[index].scb_symbol = add_symbol (chip, name, dest, SYMBOL_PARAMETER);
983 
984 	if (index > ins->scb_highest_frag_index)
985 		ins->scb_highest_frag_index = index;
986 
987 	if (index == ins->nscb)
988 		ins->nscb++;
989 
990 	return desc;
991 }
992 
993 static struct dsp_task_descriptor *
994 _map_task_tree (struct snd_cs46xx *chip, char * name, u32 dest, u32 size)
995 {
996 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
997 	struct dsp_task_descriptor * desc = NULL;
998 
999 	if (ins->ntask == DSP_MAX_TASK_DESC - 1) {
1000 		snd_printk(KERN_ERR "dsp_spos: got no place for other TASK\n");
1001 		return NULL;
1002 	}
1003 
1004 	strcpy(ins->tasks[ins->ntask].task_name,name);
1005 	ins->tasks[ins->ntask].address = dest;
1006 	ins->tasks[ins->ntask].size = size;
1007 
1008 	/* quick find in list */
1009 	ins->tasks[ins->ntask].index = ins->ntask;
1010 	desc = (ins->tasks + ins->ntask);
1011 	ins->ntask++;
1012 
1013 	add_symbol (chip,name,dest,SYMBOL_PARAMETER);
1014 	return desc;
1015 }
1016 
1017 struct dsp_scb_descriptor *
1018 cs46xx_dsp_create_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u32 dest)
1019 {
1020 	struct dsp_scb_descriptor * desc;
1021 
1022 	desc = _map_scb (chip,name,dest);
1023 	if (desc) {
1024 		_dsp_create_scb(chip,scb_data,dest);
1025 	} else {
1026 		snd_printk(KERN_ERR "dsp_spos: failed to map SCB\n");
1027 	}
1028 
1029 	return desc;
1030 }
1031 
1032 
1033 static struct dsp_task_descriptor *
1034 cs46xx_dsp_create_task_tree (struct snd_cs46xx *chip, char * name, u32 * task_data,
1035 			     u32 dest, int size)
1036 {
1037 	struct dsp_task_descriptor * desc;
1038 
1039 	desc = _map_task_tree (chip,name,dest,size);
1040 	if (desc) {
1041 		_dsp_create_task_tree(chip,task_data,dest,size);
1042 	} else {
1043 		snd_printk(KERN_ERR "dsp_spos: failed to map TASK\n");
1044 	}
1045 
1046 	return desc;
1047 }
1048 
1049 int cs46xx_dsp_scb_and_task_init (struct snd_cs46xx *chip)
1050 {
1051 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1052 	struct dsp_symbol_entry * fg_task_tree_header_code;
1053 	struct dsp_symbol_entry * task_tree_header_code;
1054 	struct dsp_symbol_entry * task_tree_thread;
1055 	struct dsp_symbol_entry * null_algorithm;
1056 	struct dsp_symbol_entry * magic_snoop_task;
1057 
1058 	struct dsp_scb_descriptor * timing_master_scb;
1059 	struct dsp_scb_descriptor * codec_out_scb;
1060 	struct dsp_scb_descriptor * codec_in_scb;
1061 	struct dsp_scb_descriptor * src_task_scb;
1062 	struct dsp_scb_descriptor * master_mix_scb;
1063 	struct dsp_scb_descriptor * rear_mix_scb;
1064 	struct dsp_scb_descriptor * record_mix_scb;
1065 	struct dsp_scb_descriptor * write_back_scb;
1066 	struct dsp_scb_descriptor * vari_decimate_scb;
1067 	struct dsp_scb_descriptor * rear_codec_out_scb;
1068 	struct dsp_scb_descriptor * clfe_codec_out_scb;
1069 	struct dsp_scb_descriptor * magic_snoop_scb;
1070 
1071 	int fifo_addr, fifo_span, valid_slots;
1072 
1073 	static struct dsp_spos_control_block sposcb = {
1074 		/* 0 */ HFG_TREE_SCB,HFG_STACK,
1075 		/* 1 */ SPOSCB_ADDR,BG_TREE_SCB_ADDR,
1076 		/* 2 */ DSP_SPOS_DC,0,
1077 		/* 3 */ DSP_SPOS_DC,DSP_SPOS_DC,
1078 		/* 4 */ 0,0,
1079 		/* 5 */ DSP_SPOS_UU,0,
1080 		/* 6 */ FG_TASK_HEADER_ADDR,0,
1081 		/* 7 */ 0,0,
1082 		/* 8 */ DSP_SPOS_UU,DSP_SPOS_DC,
1083 		/* 9 */ 0,
1084 		/* A */ 0,HFG_FIRST_EXECUTE_MODE,
1085 		/* B */ DSP_SPOS_UU,DSP_SPOS_UU,
1086 		/* C */ DSP_SPOS_DC_DC,
1087 		/* D */ DSP_SPOS_DC_DC,
1088 		/* E */ DSP_SPOS_DC_DC,
1089 		/* F */ DSP_SPOS_DC_DC
1090 	};
1091 
1092 	cs46xx_dsp_create_task_tree(chip, "sposCB", (u32 *)&sposcb, SPOSCB_ADDR, 0x10);
1093 
1094 	null_algorithm  = cs46xx_dsp_lookup_symbol(chip, "NULLALGORITHM", SYMBOL_CODE);
1095 	if (null_algorithm == NULL) {
1096 		snd_printk(KERN_ERR "dsp_spos: symbol NULLALGORITHM not found\n");
1097 		return -EIO;
1098 	}
1099 
1100 	fg_task_tree_header_code = cs46xx_dsp_lookup_symbol(chip, "FGTASKTREEHEADERCODE", SYMBOL_CODE);
1101 	if (fg_task_tree_header_code == NULL) {
1102 		snd_printk(KERN_ERR "dsp_spos: symbol FGTASKTREEHEADERCODE not found\n");
1103 		return -EIO;
1104 	}
1105 
1106 	task_tree_header_code = cs46xx_dsp_lookup_symbol(chip, "TASKTREEHEADERCODE", SYMBOL_CODE);
1107 	if (task_tree_header_code == NULL) {
1108 		snd_printk(KERN_ERR "dsp_spos: symbol TASKTREEHEADERCODE not found\n");
1109 		return -EIO;
1110 	}
1111 
1112 	task_tree_thread = cs46xx_dsp_lookup_symbol(chip, "TASKTREETHREAD", SYMBOL_CODE);
1113 	if (task_tree_thread == NULL) {
1114 		snd_printk(KERN_ERR "dsp_spos: symbol TASKTREETHREAD not found\n");
1115 		return -EIO;
1116 	}
1117 
1118 	magic_snoop_task = cs46xx_dsp_lookup_symbol(chip, "MAGICSNOOPTASK", SYMBOL_CODE);
1119 	if (magic_snoop_task == NULL) {
1120 		snd_printk(KERN_ERR "dsp_spos: symbol MAGICSNOOPTASK not found\n");
1121 		return -EIO;
1122 	}
1123 
1124 	{
1125 		/* create the null SCB */
1126 		static struct dsp_generic_scb null_scb = {
1127 			{ 0, 0, 0, 0 },
1128 			{ 0, 0, 0, 0, 0 },
1129 			NULL_SCB_ADDR, NULL_SCB_ADDR,
1130 			0, 0, 0, 0, 0,
1131 			{
1132 				0,0,
1133 				0,0,
1134 			}
1135 		};
1136 
1137 		null_scb.entry_point = null_algorithm->address;
1138 		ins->the_null_scb = cs46xx_dsp_create_scb(chip, "nullSCB", (u32 *)&null_scb, NULL_SCB_ADDR);
1139 		ins->the_null_scb->task_entry = null_algorithm;
1140 		ins->the_null_scb->sub_list_ptr = ins->the_null_scb;
1141 		ins->the_null_scb->next_scb_ptr = ins->the_null_scb;
1142 		ins->the_null_scb->parent_scb_ptr = NULL;
1143 		cs46xx_dsp_proc_register_scb_desc (chip,ins->the_null_scb);
1144 	}
1145 
1146 	{
1147 		/* setup foreground task tree */
1148 		static struct dsp_task_tree_control_block fg_task_tree_hdr =  {
1149 			{ FG_TASK_HEADER_ADDR | (DSP_SPOS_DC << 0x10),
1150 			  DSP_SPOS_DC_DC,
1151 			  DSP_SPOS_DC_DC,
1152 			  0x0000,DSP_SPOS_DC,
1153 			  DSP_SPOS_DC, DSP_SPOS_DC,
1154 			  DSP_SPOS_DC_DC,
1155 			  DSP_SPOS_DC_DC,
1156 			  DSP_SPOS_DC_DC,
1157 			  DSP_SPOS_DC,DSP_SPOS_DC },
1158 
1159 			{
1160 				BG_TREE_SCB_ADDR,TIMINGMASTER_SCB_ADDR,
1161 				0,
1162 				FG_TASK_HEADER_ADDR + TCBData,
1163 			},
1164 
1165 			{
1166 				4,0,
1167 				1,0,
1168 				2,SPOSCB_ADDR + HFGFlags,
1169 				0,0,
1170 				FG_TASK_HEADER_ADDR + TCBContextBlk,FG_STACK
1171 			},
1172 
1173 			{
1174 				DSP_SPOS_DC,0,
1175 				DSP_SPOS_DC,DSP_SPOS_DC,
1176 				DSP_SPOS_DC,DSP_SPOS_DC,
1177 				DSP_SPOS_DC,DSP_SPOS_DC,
1178 				DSP_SPOS_DC,DSP_SPOS_DC,
1179 				DSP_SPOS_DCDC,
1180 				DSP_SPOS_UU,1,
1181 				DSP_SPOS_DCDC,
1182 				DSP_SPOS_DCDC,
1183 				DSP_SPOS_DCDC,
1184 				DSP_SPOS_DCDC,
1185 				DSP_SPOS_DCDC,
1186 				DSP_SPOS_DCDC,
1187 				DSP_SPOS_DCDC,
1188 				DSP_SPOS_DCDC,
1189 				DSP_SPOS_DCDC,
1190 				DSP_SPOS_DCDC,
1191 				DSP_SPOS_DCDC,
1192 				DSP_SPOS_DCDC,
1193 				DSP_SPOS_DCDC,
1194 				DSP_SPOS_DCDC,
1195 				DSP_SPOS_DCDC,
1196 				DSP_SPOS_DCDC,
1197 				DSP_SPOS_DCDC,
1198 				DSP_SPOS_DCDC,
1199 				DSP_SPOS_DCDC,
1200 				DSP_SPOS_DCDC,
1201 				DSP_SPOS_DCDC,
1202 				DSP_SPOS_DCDC,
1203 				DSP_SPOS_DCDC,
1204 				DSP_SPOS_DCDC,
1205 				DSP_SPOS_DCDC,
1206 				DSP_SPOS_DCDC,
1207 				DSP_SPOS_DCDC,
1208 				DSP_SPOS_DCDC
1209 			},
1210 			{
1211 				FG_INTERVAL_TIMER_PERIOD,DSP_SPOS_UU,
1212 				0,0
1213 			}
1214 		};
1215 
1216 		fg_task_tree_hdr.links.entry_point = fg_task_tree_header_code->address;
1217 		fg_task_tree_hdr.context_blk.stack0 = task_tree_thread->address;
1218 		cs46xx_dsp_create_task_tree(chip,"FGtaskTreeHdr",(u32 *)&fg_task_tree_hdr,FG_TASK_HEADER_ADDR,0x35);
1219 	}
1220 
1221 
1222 	{
1223 		/* setup foreground task tree */
1224 		static struct dsp_task_tree_control_block bg_task_tree_hdr =  {
1225 			{ DSP_SPOS_DC_DC,
1226 			  DSP_SPOS_DC_DC,
1227 			  DSP_SPOS_DC_DC,
1228 			  DSP_SPOS_DC, DSP_SPOS_DC,
1229 			  DSP_SPOS_DC, DSP_SPOS_DC,
1230 			  DSP_SPOS_DC_DC,
1231 			  DSP_SPOS_DC_DC,
1232 			  DSP_SPOS_DC_DC,
1233 			  DSP_SPOS_DC,DSP_SPOS_DC },
1234 
1235 			{
1236 				NULL_SCB_ADDR,NULL_SCB_ADDR,  /* Set up the background to do nothing */
1237 				0,
1238 				BG_TREE_SCB_ADDR + TCBData,
1239 			},
1240 
1241 			{
1242 				9999,0,
1243 				0,1,
1244 				0,SPOSCB_ADDR + HFGFlags,
1245 				0,0,
1246 				BG_TREE_SCB_ADDR + TCBContextBlk,BG_STACK
1247 			},
1248 
1249 			{
1250 				DSP_SPOS_DC,0,
1251 				DSP_SPOS_DC,DSP_SPOS_DC,
1252 				DSP_SPOS_DC,DSP_SPOS_DC,
1253 				DSP_SPOS_DC,DSP_SPOS_DC,
1254 				DSP_SPOS_DC,DSP_SPOS_DC,
1255 				DSP_SPOS_DCDC,
1256 				DSP_SPOS_UU,1,
1257 				DSP_SPOS_DCDC,
1258 				DSP_SPOS_DCDC,
1259 				DSP_SPOS_DCDC,
1260 				DSP_SPOS_DCDC,
1261 				DSP_SPOS_DCDC,
1262 				DSP_SPOS_DCDC,
1263 				DSP_SPOS_DCDC,
1264 				DSP_SPOS_DCDC,
1265 				DSP_SPOS_DCDC,
1266 				DSP_SPOS_DCDC,
1267 				DSP_SPOS_DCDC,
1268 				DSP_SPOS_DCDC,
1269 				DSP_SPOS_DCDC,
1270 				DSP_SPOS_DCDC,
1271 				DSP_SPOS_DCDC,
1272 				DSP_SPOS_DCDC,
1273 				DSP_SPOS_DCDC,
1274 				DSP_SPOS_DCDC,
1275 				DSP_SPOS_DCDC,
1276 				DSP_SPOS_DCDC,
1277 				DSP_SPOS_DCDC,
1278 				DSP_SPOS_DCDC,
1279 				DSP_SPOS_DCDC,
1280 				DSP_SPOS_DCDC,
1281 				DSP_SPOS_DCDC,
1282 				DSP_SPOS_DCDC,
1283 				DSP_SPOS_DCDC,
1284 				DSP_SPOS_DCDC
1285 			},
1286 			{
1287 				BG_INTERVAL_TIMER_PERIOD,DSP_SPOS_UU,
1288 				0,0
1289 			}
1290 		};
1291 
1292 		bg_task_tree_hdr.links.entry_point = task_tree_header_code->address;
1293 		bg_task_tree_hdr.context_blk.stack0 = task_tree_thread->address;
1294 		cs46xx_dsp_create_task_tree(chip,"BGtaskTreeHdr",(u32 *)&bg_task_tree_hdr,BG_TREE_SCB_ADDR,0x35);
1295 	}
1296 
1297 	/* create timing master SCB */
1298 	timing_master_scb = cs46xx_dsp_create_timing_master_scb(chip);
1299 
1300 	/* create the CODEC output task */
1301 	codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_I",0x0010,0x0000,
1302 							MASTERMIX_SCB_ADDR,
1303 							CODECOUT_SCB_ADDR,timing_master_scb,
1304 							SCB_ON_PARENT_SUBLIST_SCB);
1305 
1306 	if (!codec_out_scb) goto _fail_end;
1307 	/* create the master mix SCB */
1308 	master_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"MasterMixSCB",
1309 							MIX_SAMPLE_BUF1,MASTERMIX_SCB_ADDR,
1310 							codec_out_scb,
1311 							SCB_ON_PARENT_SUBLIST_SCB);
1312 	ins->master_mix_scb = master_mix_scb;
1313 
1314 	if (!master_mix_scb) goto _fail_end;
1315 
1316 	/* create codec in */
1317 	codec_in_scb = cs46xx_dsp_create_codec_in_scb(chip,"CodecInSCB",0x0010,0x00A0,
1318 						      CODEC_INPUT_BUF1,
1319 						      CODECIN_SCB_ADDR,codec_out_scb,
1320 						      SCB_ON_PARENT_NEXT_SCB);
1321 	if (!codec_in_scb) goto _fail_end;
1322 	ins->codec_in_scb = codec_in_scb;
1323 
1324 	/* create write back scb */
1325 	write_back_scb = cs46xx_dsp_create_mix_to_ostream_scb(chip,"WriteBackSCB",
1326 							      WRITE_BACK_BUF1,WRITE_BACK_SPB,
1327 							      WRITEBACK_SCB_ADDR,
1328 							      timing_master_scb,
1329 							      SCB_ON_PARENT_NEXT_SCB);
1330 	if (!write_back_scb) goto _fail_end;
1331 
1332 	{
1333 		static struct dsp_mix2_ostream_spb mix2_ostream_spb = {
1334 			0x00020000,
1335 			0x0000ffff
1336 		};
1337 
1338 		/* dirty hack ... */
1339 		_dsp_create_task_tree (chip,(u32 *)&mix2_ostream_spb,WRITE_BACK_SPB,2);
1340 	}
1341 
1342 	/* input sample converter */
1343 	vari_decimate_scb = cs46xx_dsp_create_vari_decimate_scb(chip,"VariDecimateSCB",
1344 								VARI_DECIMATE_BUF0,
1345 								VARI_DECIMATE_BUF1,
1346 								VARIDECIMATE_SCB_ADDR,
1347 								write_back_scb,
1348 								SCB_ON_PARENT_SUBLIST_SCB);
1349 	if (!vari_decimate_scb) goto _fail_end;
1350 
1351 	/* create the record mixer SCB */
1352 	record_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"RecordMixerSCB",
1353 							MIX_SAMPLE_BUF2,
1354 							RECORD_MIXER_SCB_ADDR,
1355 							vari_decimate_scb,
1356 							SCB_ON_PARENT_SUBLIST_SCB);
1357 	ins->record_mixer_scb = record_mix_scb;
1358 
1359 	if (!record_mix_scb) goto _fail_end;
1360 
1361 	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
1362 
1363 	snd_assert (chip->nr_ac97_codecs == 1 || chip->nr_ac97_codecs == 2);
1364 
1365 	if (chip->nr_ac97_codecs == 1) {
1366 		/* output on slot 5 and 11
1367 		   on primary CODEC */
1368 		fifo_addr = 0x20;
1369 		fifo_span = 0x60;
1370 
1371 		/* enable slot 5 and 11 */
1372 		valid_slots |= ACOSV_SLV5 | ACOSV_SLV11;
1373 	} else {
1374 		/* output on slot 7 and 8
1375 		   on secondary CODEC */
1376 		fifo_addr = 0x40;
1377 		fifo_span = 0x10;
1378 
1379 		/* enable slot 7 and 8 */
1380 		valid_slots |= ACOSV_SLV7 | ACOSV_SLV8;
1381 	}
1382 	/* create CODEC tasklet for rear speakers output*/
1383 	rear_codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_Rear",fifo_span,fifo_addr,
1384 							     REAR_MIXER_SCB_ADDR,
1385 							     REAR_CODECOUT_SCB_ADDR,codec_in_scb,
1386 							     SCB_ON_PARENT_NEXT_SCB);
1387 	if (!rear_codec_out_scb) goto _fail_end;
1388 
1389 
1390 	/* create the rear PCM channel  mixer SCB */
1391 	rear_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"RearMixerSCB",
1392 						      MIX_SAMPLE_BUF3,
1393 						      REAR_MIXER_SCB_ADDR,
1394 						      rear_codec_out_scb,
1395 						      SCB_ON_PARENT_SUBLIST_SCB);
1396 	ins->rear_mix_scb = rear_mix_scb;
1397 	if (!rear_mix_scb) goto _fail_end;
1398 
1399 	if (chip->nr_ac97_codecs == 2) {
1400 		/* create CODEC tasklet for rear Center/LFE output
1401 		   slot 6 and 9 on seconadry CODEC */
1402 		clfe_codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_CLFE",0x0030,0x0030,
1403 								     CLFE_MIXER_SCB_ADDR,
1404 								     CLFE_CODEC_SCB_ADDR,
1405 								     rear_codec_out_scb,
1406 								     SCB_ON_PARENT_NEXT_SCB);
1407 		if (!clfe_codec_out_scb) goto _fail_end;
1408 
1409 
1410 		/* create the rear PCM channel  mixer SCB */
1411 		ins->center_lfe_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"CLFEMixerSCB",
1412 									 MIX_SAMPLE_BUF4,
1413 									 CLFE_MIXER_SCB_ADDR,
1414 									 clfe_codec_out_scb,
1415 									 SCB_ON_PARENT_SUBLIST_SCB);
1416 		if (!ins->center_lfe_mix_scb) goto _fail_end;
1417 
1418 		/* enable slot 6 and 9 */
1419 		valid_slots |= ACOSV_SLV6 | ACOSV_SLV9;
1420 	} else {
1421 		clfe_codec_out_scb = rear_codec_out_scb;
1422 		ins->center_lfe_mix_scb = rear_mix_scb;
1423 	}
1424 
1425 	/* enable slots depending on CODEC configuration */
1426 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
1427 
1428 	/* the magic snooper */
1429 	magic_snoop_scb = cs46xx_dsp_create_magic_snoop_scb (chip,"MagicSnoopSCB_I",OUTPUTSNOOP_SCB_ADDR,
1430 							     OUTPUT_SNOOP_BUFFER,
1431 							     codec_out_scb,
1432 							     clfe_codec_out_scb,
1433 							     SCB_ON_PARENT_NEXT_SCB);
1434 
1435 
1436 	if (!magic_snoop_scb) goto _fail_end;
1437 	ins->ref_snoop_scb = magic_snoop_scb;
1438 
1439 	/* SP IO access */
1440 	if (!cs46xx_dsp_create_spio_write_scb(chip,"SPIOWriteSCB",SPIOWRITE_SCB_ADDR,
1441 					      magic_snoop_scb,
1442 					      SCB_ON_PARENT_NEXT_SCB))
1443 		goto _fail_end;
1444 
1445 	/* SPDIF input sampel rate converter */
1446 	src_task_scb = cs46xx_dsp_create_src_task_scb(chip,"SrcTaskSCB_SPDIFI",
1447 						      ins->spdif_in_sample_rate,
1448 						      SRC_OUTPUT_BUF1,
1449 						      SRC_DELAY_BUF1,SRCTASK_SCB_ADDR,
1450 						      master_mix_scb,
1451 						      SCB_ON_PARENT_SUBLIST_SCB,1);
1452 
1453 	if (!src_task_scb) goto _fail_end;
1454 	cs46xx_src_unlink(chip,src_task_scb);
1455 
1456 	/* NOTE: when we now how to detect the SPDIF input
1457 	   sample rate we will use this SRC to adjust it */
1458 	ins->spdif_in_src = src_task_scb;
1459 
1460 	cs46xx_dsp_async_init(chip,timing_master_scb);
1461 	return 0;
1462 
1463  _fail_end:
1464 	snd_printk(KERN_ERR "dsp_spos: failed to setup SCB's in DSP\n");
1465 	return -EINVAL;
1466 }
1467 
1468 static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
1469 				  struct dsp_scb_descriptor * fg_entry)
1470 {
1471 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1472 	struct dsp_symbol_entry * s16_async_codec_input_task;
1473 	struct dsp_symbol_entry * spdifo_task;
1474 	struct dsp_symbol_entry * spdifi_task;
1475 	struct dsp_scb_descriptor * spdifi_scb_desc, * spdifo_scb_desc, * async_codec_scb_desc;
1476 
1477 	s16_async_codec_input_task = cs46xx_dsp_lookup_symbol(chip, "S16_ASYNCCODECINPUTTASK", SYMBOL_CODE);
1478 	if (s16_async_codec_input_task == NULL) {
1479 		snd_printk(KERN_ERR "dsp_spos: symbol S16_ASYNCCODECINPUTTASK not found\n");
1480 		return -EIO;
1481 	}
1482 	spdifo_task = cs46xx_dsp_lookup_symbol(chip, "SPDIFOTASK", SYMBOL_CODE);
1483 	if (spdifo_task == NULL) {
1484 		snd_printk(KERN_ERR "dsp_spos: symbol SPDIFOTASK not found\n");
1485 		return -EIO;
1486 	}
1487 
1488 	spdifi_task = cs46xx_dsp_lookup_symbol(chip, "SPDIFITASK", SYMBOL_CODE);
1489 	if (spdifi_task == NULL) {
1490 		snd_printk(KERN_ERR "dsp_spos: symbol SPDIFITASK not found\n");
1491 		return -EIO;
1492 	}
1493 
1494 	{
1495 		/* 0xBC0 */
1496 		struct dsp_spdifoscb spdifo_scb = {
1497 			/* 0 */ DSP_SPOS_UUUU,
1498 			{
1499 				/* 1 */ 0xb0,
1500 				/* 2 */ 0,
1501 				/* 3 */ 0,
1502 				/* 4 */ 0,
1503 			},
1504 			/* NOTE: the SPDIF output task read samples in mono
1505 			   format, the AsynchFGTxSCB task writes to buffer
1506 			   in stereo format
1507 			*/
1508 			/* 5 */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_256,
1509 			/* 6 */ ( SPDIFO_IP_OUTPUT_BUFFER1 << 0x10 )  |  0xFFFC,
1510 			/* 7 */ 0,0,
1511 			/* 8 */ 0,
1512 			/* 9 */ FG_TASK_HEADER_ADDR, NULL_SCB_ADDR,
1513 			/* A */ spdifo_task->address,
1514 			SPDIFO_SCB_INST + SPDIFOFIFOPointer,
1515 			{
1516 				/* B */ 0x0040, /*DSP_SPOS_UUUU,*/
1517 				/* C */ 0x20ff, /*DSP_SPOS_UUUU,*/
1518 			},
1519 			/* D */ 0x804c,0,							  /* SPDIFOFIFOPointer:SPDIFOStatRegAddr; */
1520 			/* E */ 0x0108,0x0001,					  /* SPDIFOStMoFormat:SPDIFOFIFOBaseAddr; */
1521 			/* F */ DSP_SPOS_UUUU	  			          /* SPDIFOFree; */
1522 		};
1523 
1524 		/* 0xBB0 */
1525 		struct dsp_spdifiscb spdifi_scb = {
1526 			/* 0 */ DSP_SPOS_UULO,DSP_SPOS_UUHI,
1527 			/* 1 */ 0,
1528 			/* 2 */ 0,
1529 			/* 3 */ 1,4000,        /* SPDIFICountLimit SPDIFICount */
1530 			/* 4 */ DSP_SPOS_UUUU, /* SPDIFIStatusData */
1531 			/* 5 */ 0,DSP_SPOS_UUHI, /* StatusData, Free4 */
1532 			/* 6 */ DSP_SPOS_UUUU,  /* Free3 */
1533 			/* 7 */ DSP_SPOS_UU,DSP_SPOS_DC,  /* Free2 BitCount*/
1534 			/* 8 */ DSP_SPOS_UUUU,	/* TempStatus */
1535 			/* 9 */ SPDIFO_SCB_INST, NULL_SCB_ADDR,
1536 			/* A */ spdifi_task->address,
1537 			SPDIFI_SCB_INST + SPDIFIFIFOPointer,
1538 			/* NOTE: The SPDIF input task write the sample in mono
1539 			   format from the HW FIFO, the AsynchFGRxSCB task  reads
1540 			   them in stereo
1541 			*/
1542 			/* B */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_128,
1543 			/* C */ (SPDIFI_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,
1544 			/* D */ 0x8048,0,
1545 			/* E */ 0x01f0,0x0001,
1546 			/* F */ DSP_SPOS_UUUU /* SPDIN_STATUS monitor */
1547 		};
1548 
1549 		/* 0xBA0 */
1550 		struct dsp_async_codec_input_scb async_codec_input_scb = {
1551 			/* 0 */ DSP_SPOS_UUUU,
1552 			/* 1 */ 0,
1553 			/* 2 */ 0,
1554 			/* 3 */ 1,4000,
1555 			/* 4 */ 0x0118,0x0001,
1556 			/* 5 */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_64,
1557 			/* 6 */ (ASYNC_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,
1558 			/* 7 */ DSP_SPOS_UU,0x3,
1559 			/* 8 */ DSP_SPOS_UUUU,
1560 			/* 9 */ SPDIFI_SCB_INST,NULL_SCB_ADDR,
1561 			/* A */ s16_async_codec_input_task->address,
1562 			HFG_TREE_SCB + AsyncCIOFIFOPointer,
1563 
1564 			/* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
1565 			/* C */ (ASYNC_IP_OUTPUT_BUFFER1 << 0x10),  /*(ASYNC_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,*/
1566 
1567 #ifdef UseASER1Input
1568 			/* short AsyncCIFIFOPointer:AsyncCIStatRegAddr;
1569 			   Init. 0000:8042: for ASER1
1570 			   0000:8044: for ASER2 */
1571 			/* D */ 0x8042,0,
1572 
1573 			/* short AsyncCIStMoFormat:AsyncCIFIFOBaseAddr;
1574 			   Init 1 stero:8050 ASER1
1575 			   Init 0  mono:8070 ASER2
1576 			   Init 1 Stereo : 0100 ASER1 (Set by script) */
1577 			/* E */ 0x0100,0x0001,
1578 
1579 #endif
1580 
1581 #ifdef UseASER2Input
1582 			/* short AsyncCIFIFOPointer:AsyncCIStatRegAddr;
1583 			   Init. 0000:8042: for ASER1
1584 			   0000:8044: for ASER2 */
1585 			/* D */ 0x8044,0,
1586 
1587 			/* short AsyncCIStMoFormat:AsyncCIFIFOBaseAddr;
1588 			   Init 1 stero:8050 ASER1
1589 			   Init 0  mono:8070 ASER2
1590 			   Init 1 Stereo : 0100 ASER1 (Set by script) */
1591 			/* E */ 0x0110,0x0001,
1592 
1593 #endif
1594 
1595 			/* short AsyncCIOutputBufModulo:AsyncCIFree;
1596 			   AsyncCIOutputBufModulo: The modulo size for
1597 			   the output buffer of this task */
1598 			/* F */ 0, /* DSP_SPOS_UUUU */
1599 		};
1600 
1601 		spdifo_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFOSCB",(u32 *)&spdifo_scb,SPDIFO_SCB_INST);
1602 
1603 		snd_assert(spdifo_scb_desc, return -EIO);
1604 		spdifi_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFISCB",(u32 *)&spdifi_scb,SPDIFI_SCB_INST);
1605 		snd_assert(spdifi_scb_desc, return -EIO);
1606 		async_codec_scb_desc = cs46xx_dsp_create_scb(chip,"AsynCodecInputSCB",(u32 *)&async_codec_input_scb, HFG_TREE_SCB);
1607 		snd_assert(async_codec_scb_desc, return -EIO);
1608 
1609 		async_codec_scb_desc->parent_scb_ptr = NULL;
1610 		async_codec_scb_desc->next_scb_ptr = spdifi_scb_desc;
1611 		async_codec_scb_desc->sub_list_ptr = ins->the_null_scb;
1612 		async_codec_scb_desc->task_entry = s16_async_codec_input_task;
1613 
1614 		spdifi_scb_desc->parent_scb_ptr = async_codec_scb_desc;
1615 		spdifi_scb_desc->next_scb_ptr = spdifo_scb_desc;
1616 		spdifi_scb_desc->sub_list_ptr = ins->the_null_scb;
1617 		spdifi_scb_desc->task_entry = spdifi_task;
1618 
1619 		spdifo_scb_desc->parent_scb_ptr = spdifi_scb_desc;
1620 		spdifo_scb_desc->next_scb_ptr = fg_entry;
1621 		spdifo_scb_desc->sub_list_ptr = ins->the_null_scb;
1622 		spdifo_scb_desc->task_entry = spdifo_task;
1623 
1624 		/* this one is faked, as the parnet of SPDIFO task
1625 		   is the FG task tree */
1626 		fg_entry->parent_scb_ptr = spdifo_scb_desc;
1627 
1628 		/* for proc fs */
1629 		cs46xx_dsp_proc_register_scb_desc (chip,spdifo_scb_desc);
1630 		cs46xx_dsp_proc_register_scb_desc (chip,spdifi_scb_desc);
1631 		cs46xx_dsp_proc_register_scb_desc (chip,async_codec_scb_desc);
1632 
1633 		/* Async MASTER ENABLE, affects both SPDIF input and output */
1634 		snd_cs46xx_pokeBA0(chip, BA0_ASER_MASTER, 0x1 );
1635 	}
1636 
1637 	return 0;
1638 }
1639 
1640 
1641 static void cs46xx_dsp_disable_spdif_hw (struct snd_cs46xx *chip)
1642 {
1643 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1644 
1645 	/* set SPDIF output FIFO slot */
1646 	snd_cs46xx_pokeBA0(chip, BA0_ASER_FADDR, 0);
1647 
1648 	/* SPDIF output MASTER ENABLE */
1649 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CONTROL, 0);
1650 
1651 	/* right and left validate bit */
1652 	/*cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);*/
1653 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, 0x0);
1654 
1655 	/* clear fifo pointer */
1656 	cs46xx_poke_via_dsp (chip,SP_SPDIN_FIFOPTR, 0x0);
1657 
1658 	/* monitor state */
1659 	ins->spdif_status_out &= ~DSP_SPDIF_STATUS_HW_ENABLED;
1660 }
1661 
1662 int cs46xx_dsp_enable_spdif_hw (struct snd_cs46xx *chip)
1663 {
1664 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1665 
1666 	/* if hw-ctrl already enabled, turn off to reset logic ... */
1667 	cs46xx_dsp_disable_spdif_hw (chip);
1668 	udelay(50);
1669 
1670 	/* set SPDIF output FIFO slot */
1671 	snd_cs46xx_pokeBA0(chip, BA0_ASER_FADDR, ( 0x8000 | ((SP_SPDOUT_FIFO >> 4) << 4) ));
1672 
1673 	/* SPDIF output MASTER ENABLE */
1674 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CONTROL, 0x80000000);
1675 
1676 	/* right and left validate bit */
1677 	cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);
1678 
1679 	/* monitor state */
1680 	ins->spdif_status_out |= DSP_SPDIF_STATUS_HW_ENABLED;
1681 
1682 	return 0;
1683 }
1684 
1685 int cs46xx_dsp_enable_spdif_in (struct snd_cs46xx *chip)
1686 {
1687 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1688 
1689 	/* turn on amplifier */
1690 	chip->active_ctrl(chip, 1);
1691 	chip->amplifier_ctrl(chip, 1);
1692 
1693 	snd_assert (ins->asynch_rx_scb == NULL,return -EINVAL);
1694 	snd_assert (ins->spdif_in_src != NULL,return -EINVAL);
1695 
1696 	mutex_lock(&chip->spos_mutex);
1697 
1698 	if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_INPUT_CTRL_ENABLED) ) {
1699 		/* time countdown enable */
1700 		cs46xx_poke_via_dsp (chip,SP_ASER_COUNTDOWN, 0x80000005);
1701 		/* NOTE: 80000005 value is just magic. With all values
1702 		   that I've tested this one seem to give the best result.
1703 		   Got no explication why. (Benny) */
1704 
1705 		/* SPDIF input MASTER ENABLE */
1706 		cs46xx_poke_via_dsp (chip,SP_SPDIN_CONTROL, 0x800003ff);
1707 
1708 		ins->spdif_status_out |= DSP_SPDIF_STATUS_INPUT_CTRL_ENABLED;
1709 	}
1710 
1711 	/* create and start the asynchronous receiver SCB */
1712 	ins->asynch_rx_scb = cs46xx_dsp_create_asynch_fg_rx_scb(chip,"AsynchFGRxSCB",
1713 								ASYNCRX_SCB_ADDR,
1714 								SPDIFI_SCB_INST,
1715 								SPDIFI_IP_OUTPUT_BUFFER1,
1716 								ins->spdif_in_src,
1717 								SCB_ON_PARENT_SUBLIST_SCB);
1718 
1719 	spin_lock_irq(&chip->reg_lock);
1720 
1721 	/* reset SPDIF input sample buffer pointer */
1722 	/*snd_cs46xx_poke (chip, (SPDIFI_SCB_INST + 0x0c) << 2,
1723 	  (SPDIFI_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC);*/
1724 
1725 	/* reset FIFO ptr */
1726 	/*cs46xx_poke_via_dsp (chip,SP_SPDIN_FIFOPTR, 0x0);*/
1727 	cs46xx_src_link(chip,ins->spdif_in_src);
1728 
1729 	/* unmute SRC volume */
1730 	cs46xx_dsp_scb_set_volume (chip,ins->spdif_in_src,0x7fff,0x7fff);
1731 
1732 	spin_unlock_irq(&chip->reg_lock);
1733 
1734 	/* set SPDIF input sample rate and unmute
1735 	   NOTE: only 48khz support for SPDIF input this time */
1736 	/* cs46xx_dsp_set_src_sample_rate(chip,ins->spdif_in_src,48000); */
1737 
1738 	/* monitor state */
1739 	ins->spdif_status_in = 1;
1740 	mutex_unlock(&chip->spos_mutex);
1741 
1742 	return 0;
1743 }
1744 
1745 int cs46xx_dsp_disable_spdif_in (struct snd_cs46xx *chip)
1746 {
1747 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1748 
1749 	snd_assert (ins->asynch_rx_scb != NULL, return -EINVAL);
1750 	snd_assert (ins->spdif_in_src != NULL,return -EINVAL);
1751 
1752 	mutex_lock(&chip->spos_mutex);
1753 
1754 	/* Remove the asynchronous receiver SCB */
1755 	cs46xx_dsp_remove_scb (chip,ins->asynch_rx_scb);
1756 	ins->asynch_rx_scb = NULL;
1757 
1758 	cs46xx_src_unlink(chip,ins->spdif_in_src);
1759 
1760 	/* monitor state */
1761 	ins->spdif_status_in = 0;
1762 	mutex_unlock(&chip->spos_mutex);
1763 
1764 	/* restore amplifier */
1765 	chip->active_ctrl(chip, -1);
1766 	chip->amplifier_ctrl(chip, -1);
1767 
1768 	return 0;
1769 }
1770 
1771 int cs46xx_dsp_enable_pcm_capture (struct snd_cs46xx *chip)
1772 {
1773 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1774 
1775 	snd_assert (ins->pcm_input == NULL,return -EINVAL);
1776 	snd_assert (ins->ref_snoop_scb != NULL,return -EINVAL);
1777 
1778 	mutex_lock(&chip->spos_mutex);
1779 	ins->pcm_input = cs46xx_add_record_source(chip,ins->ref_snoop_scb,PCMSERIALIN_PCM_SCB_ADDR,
1780                                                   "PCMSerialInput_Wave");
1781 	mutex_unlock(&chip->spos_mutex);
1782 
1783 	return 0;
1784 }
1785 
1786 int cs46xx_dsp_disable_pcm_capture (struct snd_cs46xx *chip)
1787 {
1788 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1789 
1790 	snd_assert (ins->pcm_input != NULL,return -EINVAL);
1791 
1792 	mutex_lock(&chip->spos_mutex);
1793 	cs46xx_dsp_remove_scb (chip,ins->pcm_input);
1794 	ins->pcm_input = NULL;
1795 	mutex_unlock(&chip->spos_mutex);
1796 
1797 	return 0;
1798 }
1799 
1800 int cs46xx_dsp_enable_adc_capture (struct snd_cs46xx *chip)
1801 {
1802 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1803 
1804 	snd_assert (ins->adc_input == NULL,return -EINVAL);
1805 	snd_assert (ins->codec_in_scb != NULL,return -EINVAL);
1806 
1807 	mutex_lock(&chip->spos_mutex);
1808 	ins->adc_input = cs46xx_add_record_source(chip,ins->codec_in_scb,PCMSERIALIN_SCB_ADDR,
1809 						  "PCMSerialInput_ADC");
1810 	mutex_unlock(&chip->spos_mutex);
1811 
1812 	return 0;
1813 }
1814 
1815 int cs46xx_dsp_disable_adc_capture (struct snd_cs46xx *chip)
1816 {
1817 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1818 
1819 	snd_assert (ins->adc_input != NULL,return -EINVAL);
1820 
1821 	mutex_lock(&chip->spos_mutex);
1822 	cs46xx_dsp_remove_scb (chip,ins->adc_input);
1823 	ins->adc_input = NULL;
1824 	mutex_unlock(&chip->spos_mutex);
1825 
1826 	return 0;
1827 }
1828 
1829 int cs46xx_poke_via_dsp (struct snd_cs46xx *chip, u32 address, u32 data)
1830 {
1831 	u32 temp;
1832 	int  i;
1833 
1834 	/* santiy check the parameters.  (These numbers are not 100% correct.  They are
1835 	   a rough guess from looking at the controller spec.) */
1836 	if (address < 0x8000 || address >= 0x9000)
1837 		return -EINVAL;
1838 
1839 	/* initialize the SP_IO_WRITE SCB with the data. */
1840 	temp = ( address << 16 ) | ( address & 0x0000FFFF);   /* offset 0 <-- address2 : address1 */
1841 
1842 	snd_cs46xx_poke(chip,( SPIOWRITE_SCB_ADDR      << 2), temp);
1843 	snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 1) << 2), data); /* offset 1 <-- data1 */
1844 	snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 2) << 2), data); /* offset 1 <-- data2 */
1845 
1846 	/* Poke this location to tell the task to start */
1847 	snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 6) << 2), SPIOWRITE_SCB_ADDR << 0x10);
1848 
1849 	/* Verify that the task ran */
1850 	for (i=0; i<25; i++) {
1851 		udelay(125);
1852 
1853 		temp =  snd_cs46xx_peek(chip,((SPIOWRITE_SCB_ADDR + 6) << 2));
1854 		if (temp == 0x00000000)
1855 			break;
1856 	}
1857 
1858 	if (i == 25) {
1859 		snd_printk(KERN_ERR "dsp_spos: SPIOWriteTask not responding\n");
1860 		return -EBUSY;
1861 	}
1862 
1863 	return 0;
1864 }
1865 
1866 int cs46xx_dsp_set_dac_volume (struct snd_cs46xx * chip, u16 left, u16 right)
1867 {
1868 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1869 	struct dsp_scb_descriptor * scb;
1870 
1871 	mutex_lock(&chip->spos_mutex);
1872 
1873 	/* main output */
1874 	scb = ins->master_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 	/* rear output */
1881 	scb = ins->rear_mix_scb->sub_list_ptr;
1882 	while (scb != ins->the_null_scb) {
1883 		cs46xx_dsp_scb_set_volume (chip,scb,left,right);
1884 		scb = scb->next_scb_ptr;
1885 	}
1886 
1887 	ins->dac_volume_left = left;
1888 	ins->dac_volume_right = right;
1889 
1890 	mutex_unlock(&chip->spos_mutex);
1891 
1892 	return 0;
1893 }
1894 
1895 int cs46xx_dsp_set_iec958_volume (struct snd_cs46xx * chip, u16 left, u16 right)
1896 {
1897 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1898 
1899 	mutex_lock(&chip->spos_mutex);
1900 
1901 	if (ins->asynch_rx_scb != NULL)
1902 		cs46xx_dsp_scb_set_volume (chip,ins->asynch_rx_scb,
1903 					   left,right);
1904 
1905 	ins->spdif_input_volume_left = left;
1906 	ins->spdif_input_volume_right = right;
1907 
1908 	mutex_unlock(&chip->spos_mutex);
1909 
1910 	return 0;
1911 }
1912