xref: /openbmc/linux/sound/pci/cs46xx/cs46xx_lib.c (revision b34e08d5)
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3  *                   Abramo Bagnara <abramo@alsa-project.org>
4  *                   Cirrus Logic, Inc.
5  *  Routines for control of Cirrus Logic CS461x chips
6  *
7  *  KNOWN BUGS:
8  *    - Sometimes the SPDIF input DSP tasks get's unsynchronized
9  *      and the SPDIF get somewhat "distorcionated", or/and left right channel
10  *      are swapped. To get around this problem when it happens, mute and unmute
11  *      the SPDIF input mixer control.
12  *    - On the Hercules Game Theater XP the amplifier are sometimes turned
13  *      off on inadecuate moments which causes distorcions on sound.
14  *
15  *  TODO:
16  *    - Secondary CODEC on some soundcards
17  *    - SPDIF input support for other sample rates then 48khz
18  *    - Posibility to mix the SPDIF output with analog sources.
19  *    - PCM channels for Center and LFE on secondary codec
20  *
21  *  NOTE: with CONFIG_SND_CS46XX_NEW_DSP unset uses old DSP image (which
22  *        is default configuration), no SPDIF, no secondary codec, no
23  *        multi channel PCM.  But known to work.
24  *
25  *  FINALLY: A credit to the developers Tom and Jordan
26  *           at Cirrus for have helping me out with the DSP, however we
27  *           still don't have sufficient documentation and technical
28  *           references to be able to implement all fancy feutures
29  *           supported by the cs46xx DSP's.
30  *           Benny <benny@hostmobility.com>
31  *
32  *   This program is free software; you can redistribute it and/or modify
33  *   it under the terms of the GNU General Public License as published by
34  *   the Free Software Foundation; either version 2 of the License, or
35  *   (at your option) any later version.
36  *
37  *   This program is distributed in the hope that it will be useful,
38  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
39  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
40  *   GNU General Public License for more details.
41  *
42  *   You should have received a copy of the GNU General Public License
43  *   along with this program; if not, write to the Free Software
44  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
45  *
46  */
47 
48 #include <linux/delay.h>
49 #include <linux/pci.h>
50 #include <linux/pm.h>
51 #include <linux/init.h>
52 #include <linux/interrupt.h>
53 #include <linux/slab.h>
54 #include <linux/gameport.h>
55 #include <linux/mutex.h>
56 #include <linux/export.h>
57 #include <linux/module.h>
58 #include <linux/firmware.h>
59 #include <linux/vmalloc.h>
60 
61 #include <sound/core.h>
62 #include <sound/control.h>
63 #include <sound/info.h>
64 #include <sound/pcm.h>
65 #include <sound/pcm_params.h>
66 #include "cs46xx.h"
67 
68 #include <asm/io.h>
69 
70 #include "cs46xx_lib.h"
71 #include "dsp_spos.h"
72 
73 static void amp_voyetra(struct snd_cs46xx *chip, int change);
74 
75 #ifdef CONFIG_SND_CS46XX_NEW_DSP
76 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
77 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
78 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
79 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
80 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
81 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
82 #endif
83 
84 static struct snd_pcm_ops snd_cs46xx_playback_ops;
85 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
86 static struct snd_pcm_ops snd_cs46xx_capture_ops;
87 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
88 
89 static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
90 					    unsigned short reg,
91 					    int codec_index)
92 {
93 	int count;
94 	unsigned short result,tmp;
95 	u32 offset = 0;
96 
97 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
98 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
99 		return 0xffff;
100 
101 	chip->active_ctrl(chip, 1);
102 
103 	if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
104 		offset = CS46XX_SECONDARY_CODEC_OFFSET;
105 
106 	/*
107 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
108 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
109 	 *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
110 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
111 	 *  5. if DCV not cleared, break and return error
112 	 *  6. Read ACSTS = Status Register = 464h, check VSTS bit
113 	 */
114 
115 	snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
116 
117 	tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
118 	if ((tmp & ACCTL_VFRM) == 0) {
119 		dev_warn(chip->card->dev, "ACCTL_VFRM not set 0x%x\n", tmp);
120 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
121 		msleep(50);
122 		tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
123 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
124 
125 	}
126 
127 	/*
128 	 *  Setup the AC97 control registers on the CS461x to send the
129 	 *  appropriate command to the AC97 to perform the read.
130 	 *  ACCAD = Command Address Register = 46Ch
131 	 *  ACCDA = Command Data Register = 470h
132 	 *  ACCTL = Control Register = 460h
133 	 *  set DCV - will clear when process completed
134 	 *  set CRW - Read command
135 	 *  set VFRM - valid frame enabled
136 	 *  set ESYN - ASYNC generation enabled
137 	 *  set RSTN - ARST# inactive, AC97 codec not reset
138 	 */
139 
140 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
141 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
142 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
143 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW |
144 				   ACCTL_VFRM | ACCTL_ESYN |
145 				   ACCTL_RSTN);
146 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
147 				   ACCTL_VFRM | ACCTL_ESYN |
148 				   ACCTL_RSTN);
149 	} else {
150 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
151 				   ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
152 				   ACCTL_RSTN);
153 	}
154 
155 	/*
156 	 *  Wait for the read to occur.
157 	 */
158 	for (count = 0; count < 1000; count++) {
159 		/*
160 		 *  First, we want to wait for a short time.
161 	 	 */
162 		udelay(10);
163 		/*
164 		 *  Now, check to see if the read has completed.
165 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
166 		 */
167 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
168 			goto ok1;
169 	}
170 
171 	dev_err(chip->card->dev,
172 		"AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
173 	result = 0xffff;
174 	goto end;
175 
176  ok1:
177 	/*
178 	 *  Wait for the valid status bit to go active.
179 	 */
180 	for (count = 0; count < 100; count++) {
181 		/*
182 		 *  Read the AC97 status register.
183 		 *  ACSTS = Status Register = 464h
184 		 *  VSTS - Valid Status
185 		 */
186 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
187 			goto ok2;
188 		udelay(10);
189 	}
190 
191 	dev_err(chip->card->dev,
192 		"AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n",
193 		codec_index, reg);
194 	result = 0xffff;
195 	goto end;
196 
197  ok2:
198 	/*
199 	 *  Read the data returned from the AC97 register.
200 	 *  ACSDA = Status Data Register = 474h
201 	 */
202 #if 0
203 	dev_dbg(chip->card->dev,
204 		"e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
205 			snd_cs46xx_peekBA0(chip, BA0_ACSDA),
206 			snd_cs46xx_peekBA0(chip, BA0_ACCAD));
207 #endif
208 
209 	//snd_cs46xx_peekBA0(chip, BA0_ACCAD);
210 	result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
211  end:
212 	chip->active_ctrl(chip, -1);
213 	return result;
214 }
215 
216 static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
217 					    unsigned short reg)
218 {
219 	struct snd_cs46xx *chip = ac97->private_data;
220 	unsigned short val;
221 	int codec_index = ac97->num;
222 
223 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
224 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
225 		return 0xffff;
226 
227 	val = snd_cs46xx_codec_read(chip, reg, codec_index);
228 
229 	return val;
230 }
231 
232 
233 static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
234 				   unsigned short reg,
235 				   unsigned short val,
236 				   int codec_index)
237 {
238 	int count;
239 
240 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
241 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
242 		return;
243 
244 	chip->active_ctrl(chip, 1);
245 
246 	/*
247 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
248 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
249 	 *  3. Write ACCTL = Control Register = 460h for initiating the write
250 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
251 	 *  5. if DCV not cleared, break and return error
252 	 */
253 
254 	/*
255 	 *  Setup the AC97 control registers on the CS461x to send the
256 	 *  appropriate command to the AC97 to perform the read.
257 	 *  ACCAD = Command Address Register = 46Ch
258 	 *  ACCDA = Command Data Register = 470h
259 	 *  ACCTL = Control Register = 460h
260 	 *  set DCV - will clear when process completed
261 	 *  reset CRW - Write command
262 	 *  set VFRM - valid frame enabled
263 	 *  set ESYN - ASYNC generation enabled
264 	 *  set RSTN - ARST# inactive, AC97 codec not reset
265          */
266 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
267 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
268 	snd_cs46xx_peekBA0(chip, BA0_ACCTL);
269 
270 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
271 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
272 				   ACCTL_ESYN | ACCTL_RSTN);
273 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
274 				   ACCTL_ESYN | ACCTL_RSTN);
275 	} else {
276 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
277 				   ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
278 	}
279 
280 	for (count = 0; count < 4000; count++) {
281 		/*
282 		 *  First, we want to wait for a short time.
283 		 */
284 		udelay(10);
285 		/*
286 		 *  Now, check to see if the write has completed.
287 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
288 		 */
289 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
290 			goto end;
291 		}
292 	}
293 	dev_err(chip->card->dev,
294 		"AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n",
295 		codec_index, reg, val);
296  end:
297 	chip->active_ctrl(chip, -1);
298 }
299 
300 static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
301 				   unsigned short reg,
302 				   unsigned short val)
303 {
304 	struct snd_cs46xx *chip = ac97->private_data;
305 	int codec_index = ac97->num;
306 
307 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
308 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
309 		return;
310 
311 	snd_cs46xx_codec_write(chip, reg, val, codec_index);
312 }
313 
314 
315 /*
316  *  Chip initialization
317  */
318 
319 int snd_cs46xx_download(struct snd_cs46xx *chip,
320 			u32 *src,
321                         unsigned long offset,
322                         unsigned long len)
323 {
324 	void __iomem *dst;
325 	unsigned int bank = offset >> 16;
326 	offset = offset & 0xffff;
327 
328 	if (snd_BUG_ON((offset & 3) || (len & 3)))
329 		return -EINVAL;
330 	dst = chip->region.idx[bank+1].remap_addr + offset;
331 	len /= sizeof(u32);
332 
333 	/* writel already converts 32-bit value to right endianess */
334 	while (len-- > 0) {
335 		writel(*src++, dst);
336 		dst += sizeof(u32);
337 	}
338 	return 0;
339 }
340 
341 static inline void memcpy_le32(void *dst, const void *src, unsigned int len)
342 {
343 #ifdef __LITTLE_ENDIAN
344 	memcpy(dst, src, len);
345 #else
346 	u32 *_dst = dst;
347 	const __le32 *_src = src;
348 	len /= 4;
349 	while (len-- > 0)
350 		*_dst++ = le32_to_cpu(*_src++);
351 #endif
352 }
353 
354 #ifdef CONFIG_SND_CS46XX_NEW_DSP
355 
356 static const char *module_names[CS46XX_DSP_MODULES] = {
357 	"cwc4630", "cwcasync", "cwcsnoop", "cwcbinhack", "cwcdma"
358 };
359 
360 MODULE_FIRMWARE("cs46xx/cwc4630");
361 MODULE_FIRMWARE("cs46xx/cwcasync");
362 MODULE_FIRMWARE("cs46xx/cwcsnoop");
363 MODULE_FIRMWARE("cs46xx/cwcbinhack");
364 MODULE_FIRMWARE("cs46xx/cwcdma");
365 
366 static void free_module_desc(struct dsp_module_desc *module)
367 {
368 	if (!module)
369 		return;
370 	kfree(module->module_name);
371 	kfree(module->symbol_table.symbols);
372 	if (module->segments) {
373 		int i;
374 		for (i = 0; i < module->nsegments; i++)
375 			kfree(module->segments[i].data);
376 		kfree(module->segments);
377 	}
378 	kfree(module);
379 }
380 
381 /* firmware binary format:
382  * le32 nsymbols;
383  * struct {
384  *	le32 address;
385  *	char symbol_name[DSP_MAX_SYMBOL_NAME];
386  *	le32 symbol_type;
387  * } symbols[nsymbols];
388  * le32 nsegments;
389  * struct {
390  *	le32 segment_type;
391  *	le32 offset;
392  *	le32 size;
393  *	le32 data[size];
394  * } segments[nsegments];
395  */
396 
397 static int load_firmware(struct snd_cs46xx *chip,
398 			 struct dsp_module_desc **module_ret,
399 			 const char *fw_name)
400 {
401 	int i, err;
402 	unsigned int nums, fwlen, fwsize;
403 	const __le32 *fwdat;
404 	struct dsp_module_desc *module = NULL;
405 	const struct firmware *fw;
406 	char fw_path[32];
407 
408 	sprintf(fw_path, "cs46xx/%s", fw_name);
409 	err = request_firmware(&fw, fw_path, &chip->pci->dev);
410 	if (err < 0)
411 		return err;
412 	fwsize = fw->size / 4;
413 	if (fwsize < 2) {
414 		err = -EINVAL;
415 		goto error;
416 	}
417 
418 	err = -ENOMEM;
419 	module = kzalloc(sizeof(*module), GFP_KERNEL);
420 	if (!module)
421 		goto error;
422 	module->module_name = kstrdup(fw_name, GFP_KERNEL);
423 	if (!module->module_name)
424 		goto error;
425 
426 	fwlen = 0;
427 	fwdat = (const __le32 *)fw->data;
428 	nums = module->symbol_table.nsymbols = le32_to_cpu(fwdat[fwlen++]);
429 	if (nums >= 40)
430 		goto error_inval;
431 	module->symbol_table.symbols =
432 		kcalloc(nums, sizeof(struct dsp_symbol_entry), GFP_KERNEL);
433 	if (!module->symbol_table.symbols)
434 		goto error;
435 	for (i = 0; i < nums; i++) {
436 		struct dsp_symbol_entry *entry =
437 			&module->symbol_table.symbols[i];
438 		if (fwlen + 2 + DSP_MAX_SYMBOL_NAME / 4 > fwsize)
439 			goto error_inval;
440 		entry->address = le32_to_cpu(fwdat[fwlen++]);
441 		memcpy(entry->symbol_name, &fwdat[fwlen], DSP_MAX_SYMBOL_NAME - 1);
442 		fwlen += DSP_MAX_SYMBOL_NAME / 4;
443 		entry->symbol_type = le32_to_cpu(fwdat[fwlen++]);
444 	}
445 
446 	if (fwlen >= fwsize)
447 		goto error_inval;
448 	nums = module->nsegments = le32_to_cpu(fwdat[fwlen++]);
449 	if (nums > 10)
450 		goto error_inval;
451 	module->segments =
452 		kcalloc(nums, sizeof(struct dsp_segment_desc), GFP_KERNEL);
453 	if (!module->segments)
454 		goto error;
455 	for (i = 0; i < nums; i++) {
456 		struct dsp_segment_desc *entry = &module->segments[i];
457 		if (fwlen + 3 > fwsize)
458 			goto error_inval;
459 		entry->segment_type = le32_to_cpu(fwdat[fwlen++]);
460 		entry->offset = le32_to_cpu(fwdat[fwlen++]);
461 		entry->size = le32_to_cpu(fwdat[fwlen++]);
462 		if (fwlen + entry->size > fwsize)
463 			goto error_inval;
464 		entry->data = kmalloc(entry->size * 4, GFP_KERNEL);
465 		if (!entry->data)
466 			goto error;
467 		memcpy_le32(entry->data, &fwdat[fwlen], entry->size * 4);
468 		fwlen += entry->size;
469 	}
470 
471 	*module_ret = module;
472 	release_firmware(fw);
473 	return 0;
474 
475  error_inval:
476 	err = -EINVAL;
477  error:
478 	free_module_desc(module);
479 	release_firmware(fw);
480 	return err;
481 }
482 
483 int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
484                          unsigned long offset,
485                          unsigned long len)
486 {
487 	void __iomem *dst;
488 	unsigned int bank = offset >> 16;
489 	offset = offset & 0xffff;
490 
491 	if (snd_BUG_ON((offset & 3) || (len & 3)))
492 		return -EINVAL;
493 	dst = chip->region.idx[bank+1].remap_addr + offset;
494 	len /= sizeof(u32);
495 
496 	/* writel already converts 32-bit value to right endianess */
497 	while (len-- > 0) {
498 		writel(0, dst);
499 		dst += sizeof(u32);
500 	}
501 	return 0;
502 }
503 
504 #else /* old DSP image */
505 
506 struct ba1_struct {
507 	struct {
508 		u32 offset;
509 		u32 size;
510 	} memory[BA1_MEMORY_COUNT];
511 	u32 map[BA1_DWORD_SIZE];
512 };
513 
514 MODULE_FIRMWARE("cs46xx/ba1");
515 
516 static int load_firmware(struct snd_cs46xx *chip)
517 {
518 	const struct firmware *fw;
519 	int i, size, err;
520 
521 	err = request_firmware(&fw, "cs46xx/ba1", &chip->pci->dev);
522 	if (err < 0)
523 		return err;
524 	if (fw->size != sizeof(*chip->ba1)) {
525 		err = -EINVAL;
526 		goto error;
527 	}
528 
529 	chip->ba1 = vmalloc(sizeof(*chip->ba1));
530 	if (!chip->ba1) {
531 		err = -ENOMEM;
532 		goto error;
533 	}
534 
535 	memcpy_le32(chip->ba1, fw->data, sizeof(*chip->ba1));
536 
537 	/* sanity check */
538 	size = 0;
539 	for (i = 0; i < BA1_MEMORY_COUNT; i++)
540 		size += chip->ba1->memory[i].size;
541 	if (size > BA1_DWORD_SIZE * 4)
542 		err = -EINVAL;
543 
544  error:
545 	release_firmware(fw);
546 	return err;
547 }
548 
549 int snd_cs46xx_download_image(struct snd_cs46xx *chip)
550 {
551 	int idx, err;
552 	unsigned int offset = 0;
553 	struct ba1_struct *ba1 = chip->ba1;
554 
555 	for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
556 		err = snd_cs46xx_download(chip,
557 					  &ba1->map[offset],
558 					  ba1->memory[idx].offset,
559 					  ba1->memory[idx].size);
560 		if (err < 0)
561 			return err;
562 		offset += ba1->memory[idx].size >> 2;
563 	}
564 	return 0;
565 }
566 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
567 
568 /*
569  *  Chip reset
570  */
571 
572 static void snd_cs46xx_reset(struct snd_cs46xx *chip)
573 {
574 	int idx;
575 
576 	/*
577 	 *  Write the reset bit of the SP control register.
578 	 */
579 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
580 
581 	/*
582 	 *  Write the control register.
583 	 */
584 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
585 
586 	/*
587 	 *  Clear the trap registers.
588 	 */
589 	for (idx = 0; idx < 8; idx++) {
590 		snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
591 		snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
592 	}
593 	snd_cs46xx_poke(chip, BA1_DREG, 0);
594 
595 	/*
596 	 *  Set the frame timer to reflect the number of cycles per frame.
597 	 */
598 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
599 }
600 
601 static int cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout)
602 {
603 	u32 i, status = 0;
604 	/*
605 	 * Make sure the previous FIFO write operation has completed.
606 	 */
607 	for(i = 0; i < 50; i++){
608 		status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
609 
610 		if( !(status & SERBST_WBSY) )
611 			break;
612 
613 		mdelay(retry_timeout);
614 	}
615 
616 	if(status & SERBST_WBSY) {
617 		dev_err(chip->card->dev,
618 			"failure waiting for FIFO command to complete\n");
619 		return -EINVAL;
620 	}
621 
622 	return 0;
623 }
624 
625 static void snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx *chip)
626 {
627 	int idx, powerdown = 0;
628 	unsigned int tmp;
629 
630 	/*
631 	 *  See if the devices are powered down.  If so, we must power them up first
632 	 *  or they will not respond.
633 	 */
634 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
635 	if (!(tmp & CLKCR1_SWCE)) {
636 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
637 		powerdown = 1;
638 	}
639 
640 	/*
641 	 *  We want to clear out the serial port FIFOs so we don't end up playing
642 	 *  whatever random garbage happens to be in them.  We fill the sample FIFOS
643 	 *  with zero (silence).
644 	 */
645 	snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
646 
647 	/*
648 	 *  Fill all 256 sample FIFO locations.
649 	 */
650 	for (idx = 0; idx < 0xFF; idx++) {
651 		/*
652 		 *  Make sure the previous FIFO write operation has completed.
653 		 */
654 		if (cs46xx_wait_for_fifo(chip,1)) {
655 			dev_dbg(chip->card->dev,
656 				"failed waiting for FIFO at addr (%02X)\n",
657 				idx);
658 
659 			if (powerdown)
660 				snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
661 
662 			break;
663 		}
664 		/*
665 		 *  Write the serial port FIFO index.
666 		 */
667 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
668 		/*
669 		 *  Tell the serial port to load the new value into the FIFO location.
670 		 */
671 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
672 	}
673 	/*
674 	 *  Now, if we powered up the devices, then power them back down again.
675 	 *  This is kinda ugly, but should never happen.
676 	 */
677 	if (powerdown)
678 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
679 }
680 
681 static void snd_cs46xx_proc_start(struct snd_cs46xx *chip)
682 {
683 	int cnt;
684 
685 	/*
686 	 *  Set the frame timer to reflect the number of cycles per frame.
687 	 */
688 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
689 	/*
690 	 *  Turn on the run, run at frame, and DMA enable bits in the local copy of
691 	 *  the SP control register.
692 	 */
693 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
694 	/*
695 	 *  Wait until the run at frame bit resets itself in the SP control
696 	 *  register.
697 	 */
698 	for (cnt = 0; cnt < 25; cnt++) {
699 		udelay(50);
700 		if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
701 			break;
702 	}
703 
704 	if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
705 		dev_err(chip->card->dev, "SPCR_RUNFR never reset\n");
706 }
707 
708 static void snd_cs46xx_proc_stop(struct snd_cs46xx *chip)
709 {
710 	/*
711 	 *  Turn off the run, run at frame, and DMA enable bits in the local copy of
712 	 *  the SP control register.
713 	 */
714 	snd_cs46xx_poke(chip, BA1_SPCR, 0);
715 }
716 
717 /*
718  *  Sample rate routines
719  */
720 
721 #define GOF_PER_SEC 200
722 
723 static void snd_cs46xx_set_play_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
724 {
725 	unsigned long flags;
726 	unsigned int tmp1, tmp2;
727 	unsigned int phiIncr;
728 	unsigned int correctionPerGOF, correctionPerSec;
729 
730 	/*
731 	 *  Compute the values used to drive the actual sample rate conversion.
732 	 *  The following formulas are being computed, using inline assembly
733 	 *  since we need to use 64 bit arithmetic to compute the values:
734 	 *
735 	 *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
736 	 *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
737          *                                   GOF_PER_SEC)
738          *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
739          *                       GOF_PER_SEC * correctionPerGOF
740 	 *
741 	 *  i.e.
742 	 *
743 	 *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
744 	 *  correctionPerGOF:correctionPerSec =
745 	 *      dividend:remainder(ulOther / GOF_PER_SEC)
746 	 */
747 	tmp1 = rate << 16;
748 	phiIncr = tmp1 / 48000;
749 	tmp1 -= phiIncr * 48000;
750 	tmp1 <<= 10;
751 	phiIncr <<= 10;
752 	tmp2 = tmp1 / 48000;
753 	phiIncr += tmp2;
754 	tmp1 -= tmp2 * 48000;
755 	correctionPerGOF = tmp1 / GOF_PER_SEC;
756 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
757 	correctionPerSec = tmp1;
758 
759 	/*
760 	 *  Fill in the SampleRateConverter control block.
761 	 */
762 	spin_lock_irqsave(&chip->reg_lock, flags);
763 	snd_cs46xx_poke(chip, BA1_PSRC,
764 	  ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
765 	snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
766 	spin_unlock_irqrestore(&chip->reg_lock, flags);
767 }
768 
769 static void snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
770 {
771 	unsigned long flags;
772 	unsigned int phiIncr, coeffIncr, tmp1, tmp2;
773 	unsigned int correctionPerGOF, correctionPerSec, initialDelay;
774 	unsigned int frameGroupLength, cnt;
775 
776 	/*
777 	 *  We can only decimate by up to a factor of 1/9th the hardware rate.
778 	 *  Correct the value if an attempt is made to stray outside that limit.
779 	 */
780 	if ((rate * 9) < 48000)
781 		rate = 48000 / 9;
782 
783 	/*
784 	 *  We can not capture at at rate greater than the Input Rate (48000).
785 	 *  Return an error if an attempt is made to stray outside that limit.
786 	 */
787 	if (rate > 48000)
788 		rate = 48000;
789 
790 	/*
791 	 *  Compute the values used to drive the actual sample rate conversion.
792 	 *  The following formulas are being computed, using inline assembly
793 	 *  since we need to use 64 bit arithmetic to compute the values:
794 	 *
795 	 *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
796 	 *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
797 	 *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
798 	 *                                GOF_PER_SEC)
799 	 *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
800 	 *                          GOF_PER_SEC * correctionPerGOF
801 	 *     initialDelay = ceil((24 * Fs,in) / Fs,out)
802 	 *
803 	 * i.e.
804 	 *
805 	 *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
806 	 *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
807 	 *     correctionPerGOF:correctionPerSec =
808 	 * 	    dividend:remainder(ulOther / GOF_PER_SEC)
809 	 *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
810 	 */
811 
812 	tmp1 = rate << 16;
813 	coeffIncr = tmp1 / 48000;
814 	tmp1 -= coeffIncr * 48000;
815 	tmp1 <<= 7;
816 	coeffIncr <<= 7;
817 	coeffIncr += tmp1 / 48000;
818 	coeffIncr ^= 0xFFFFFFFF;
819 	coeffIncr++;
820 	tmp1 = 48000 << 16;
821 	phiIncr = tmp1 / rate;
822 	tmp1 -= phiIncr * rate;
823 	tmp1 <<= 10;
824 	phiIncr <<= 10;
825 	tmp2 = tmp1 / rate;
826 	phiIncr += tmp2;
827 	tmp1 -= tmp2 * rate;
828 	correctionPerGOF = tmp1 / GOF_PER_SEC;
829 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
830 	correctionPerSec = tmp1;
831 	initialDelay = ((48000 * 24) + rate - 1) / rate;
832 
833 	/*
834 	 *  Fill in the VariDecimate control block.
835 	 */
836 	spin_lock_irqsave(&chip->reg_lock, flags);
837 	snd_cs46xx_poke(chip, BA1_CSRC,
838 		((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
839 	snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
840 	snd_cs46xx_poke(chip, BA1_CD,
841 		(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
842 	snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
843 	spin_unlock_irqrestore(&chip->reg_lock, flags);
844 
845 	/*
846 	 *  Figure out the frame group length for the write back task.  Basically,
847 	 *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
848 	 *  the output sample rate.
849 	 */
850 	frameGroupLength = 1;
851 	for (cnt = 2; cnt <= 64; cnt *= 2) {
852 		if (((rate / cnt) * cnt) != rate)
853 			frameGroupLength *= 2;
854 	}
855 	if (((rate / 3) * 3) != rate) {
856 		frameGroupLength *= 3;
857 	}
858 	for (cnt = 5; cnt <= 125; cnt *= 5) {
859 		if (((rate / cnt) * cnt) != rate)
860 			frameGroupLength *= 5;
861         }
862 
863 	/*
864 	 * Fill in the WriteBack control block.
865 	 */
866 	spin_lock_irqsave(&chip->reg_lock, flags);
867 	snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
868 	snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
869 	snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
870 	snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
871 	snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
872 	spin_unlock_irqrestore(&chip->reg_lock, flags);
873 }
874 
875 /*
876  *  PCM part
877  */
878 
879 static void snd_cs46xx_pb_trans_copy(struct snd_pcm_substream *substream,
880 				     struct snd_pcm_indirect *rec, size_t bytes)
881 {
882 	struct snd_pcm_runtime *runtime = substream->runtime;
883 	struct snd_cs46xx_pcm * cpcm = runtime->private_data;
884 	memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
885 }
886 
887 static int snd_cs46xx_playback_transfer(struct snd_pcm_substream *substream)
888 {
889 	struct snd_pcm_runtime *runtime = substream->runtime;
890 	struct snd_cs46xx_pcm * cpcm = runtime->private_data;
891 	snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec, snd_cs46xx_pb_trans_copy);
892 	return 0;
893 }
894 
895 static void snd_cs46xx_cp_trans_copy(struct snd_pcm_substream *substream,
896 				     struct snd_pcm_indirect *rec, size_t bytes)
897 {
898 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
899 	struct snd_pcm_runtime *runtime = substream->runtime;
900 	memcpy(runtime->dma_area + rec->sw_data,
901 	       chip->capt.hw_buf.area + rec->hw_data, bytes);
902 }
903 
904 static int snd_cs46xx_capture_transfer(struct snd_pcm_substream *substream)
905 {
906 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
907 	snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec, snd_cs46xx_cp_trans_copy);
908 	return 0;
909 }
910 
911 static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream *substream)
912 {
913 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
914 	size_t ptr;
915 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
916 
917 	if (snd_BUG_ON(!cpcm->pcm_channel))
918 		return -ENXIO;
919 
920 #ifdef CONFIG_SND_CS46XX_NEW_DSP
921 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
922 #else
923 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
924 #endif
925 	ptr -= cpcm->hw_buf.addr;
926 	return ptr >> cpcm->shift;
927 }
928 
929 static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream *substream)
930 {
931 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
932 	size_t ptr;
933 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
934 
935 #ifdef CONFIG_SND_CS46XX_NEW_DSP
936 	if (snd_BUG_ON(!cpcm->pcm_channel))
937 		return -ENXIO;
938 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
939 #else
940 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
941 #endif
942 	ptr -= cpcm->hw_buf.addr;
943 	return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
944 }
945 
946 static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream *substream)
947 {
948 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
949 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
950 	return ptr >> chip->capt.shift;
951 }
952 
953 static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream *substream)
954 {
955 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
956 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
957 	return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
958 }
959 
960 static int snd_cs46xx_playback_trigger(struct snd_pcm_substream *substream,
961 				       int cmd)
962 {
963 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
964 	/*struct snd_pcm_runtime *runtime = substream->runtime;*/
965 	int result = 0;
966 
967 #ifdef CONFIG_SND_CS46XX_NEW_DSP
968 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
969 	if (! cpcm->pcm_channel) {
970 		return -ENXIO;
971 	}
972 #endif
973 	switch (cmd) {
974 	case SNDRV_PCM_TRIGGER_START:
975 	case SNDRV_PCM_TRIGGER_RESUME:
976 #ifdef CONFIG_SND_CS46XX_NEW_DSP
977 		/* magic value to unmute PCM stream  playback volume */
978 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
979 				       SCBVolumeCtrl) << 2, 0x80008000);
980 
981 		if (cpcm->pcm_channel->unlinked)
982 			cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
983 
984 		if (substream->runtime->periods != CS46XX_FRAGS)
985 			snd_cs46xx_playback_transfer(substream);
986 #else
987 		spin_lock(&chip->reg_lock);
988 		if (substream->runtime->periods != CS46XX_FRAGS)
989 			snd_cs46xx_playback_transfer(substream);
990 		{ unsigned int tmp;
991 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
992 		tmp &= 0x0000ffff;
993 		snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
994 		}
995 		spin_unlock(&chip->reg_lock);
996 #endif
997 		break;
998 	case SNDRV_PCM_TRIGGER_STOP:
999 	case SNDRV_PCM_TRIGGER_SUSPEND:
1000 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1001 		/* magic mute channel */
1002 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
1003 				       SCBVolumeCtrl) << 2, 0xffffffff);
1004 
1005 		if (!cpcm->pcm_channel->unlinked)
1006 			cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
1007 #else
1008 		spin_lock(&chip->reg_lock);
1009 		{ unsigned int tmp;
1010 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
1011 		tmp &= 0x0000ffff;
1012 		snd_cs46xx_poke(chip, BA1_PCTL, tmp);
1013 		}
1014 		spin_unlock(&chip->reg_lock);
1015 #endif
1016 		break;
1017 	default:
1018 		result = -EINVAL;
1019 		break;
1020 	}
1021 
1022 	return result;
1023 }
1024 
1025 static int snd_cs46xx_capture_trigger(struct snd_pcm_substream *substream,
1026 				      int cmd)
1027 {
1028 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1029 	unsigned int tmp;
1030 	int result = 0;
1031 
1032 	spin_lock(&chip->reg_lock);
1033 	switch (cmd) {
1034 	case SNDRV_PCM_TRIGGER_START:
1035 	case SNDRV_PCM_TRIGGER_RESUME:
1036 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
1037 		tmp &= 0xffff0000;
1038 		snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
1039 		break;
1040 	case SNDRV_PCM_TRIGGER_STOP:
1041 	case SNDRV_PCM_TRIGGER_SUSPEND:
1042 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
1043 		tmp &= 0xffff0000;
1044 		snd_cs46xx_poke(chip, BA1_CCTL, tmp);
1045 		break;
1046 	default:
1047 		result = -EINVAL;
1048 		break;
1049 	}
1050 	spin_unlock(&chip->reg_lock);
1051 
1052 	return result;
1053 }
1054 
1055 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1056 static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46xx_pcm *cpcm,
1057 				       int sample_rate)
1058 {
1059 
1060 	/* If PCMReaderSCB and SrcTaskSCB not created yet ... */
1061 	if ( cpcm->pcm_channel == NULL) {
1062 		cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate,
1063 								   cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
1064 		if (cpcm->pcm_channel == NULL) {
1065 			dev_err(chip->card->dev,
1066 				"failed to create virtual PCM channel\n");
1067 			return -ENOMEM;
1068 		}
1069 		cpcm->pcm_channel->sample_rate = sample_rate;
1070 	} else
1071 	/* if sample rate is changed */
1072 	if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
1073 		int unlinked = cpcm->pcm_channel->unlinked;
1074 		cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
1075 
1076 		if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm,
1077 									 cpcm->hw_buf.addr,
1078 									 cpcm->pcm_channel_id)) == NULL) {
1079 			dev_err(chip->card->dev,
1080 				"failed to re-create virtual PCM channel\n");
1081 			return -ENOMEM;
1082 		}
1083 
1084 		if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
1085 		cpcm->pcm_channel->sample_rate = sample_rate;
1086 	}
1087 
1088 	return 0;
1089 }
1090 #endif
1091 
1092 
1093 static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
1094 					 struct snd_pcm_hw_params *hw_params)
1095 {
1096 	struct snd_pcm_runtime *runtime = substream->runtime;
1097 	struct snd_cs46xx_pcm *cpcm;
1098 	int err;
1099 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1100 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1101 	int sample_rate = params_rate(hw_params);
1102 	int period_size = params_period_bytes(hw_params);
1103 #endif
1104 	cpcm = runtime->private_data;
1105 
1106 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1107 	if (snd_BUG_ON(!sample_rate))
1108 		return -ENXIO;
1109 
1110 	mutex_lock(&chip->spos_mutex);
1111 
1112 	if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
1113 		mutex_unlock(&chip->spos_mutex);
1114 		return -ENXIO;
1115 	}
1116 
1117 	snd_BUG_ON(!cpcm->pcm_channel);
1118 	if (!cpcm->pcm_channel) {
1119 		mutex_unlock(&chip->spos_mutex);
1120 		return -ENXIO;
1121 	}
1122 
1123 
1124 	if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
1125 		 mutex_unlock(&chip->spos_mutex);
1126 		 return -EINVAL;
1127 	 }
1128 
1129 	dev_dbg(chip->card->dev,
1130 		"period_size (%d), periods (%d) buffer_size(%d)\n",
1131 		     period_size, params_periods(hw_params),
1132 		     params_buffer_bytes(hw_params));
1133 #endif
1134 
1135 	if (params_periods(hw_params) == CS46XX_FRAGS) {
1136 		if (runtime->dma_area != cpcm->hw_buf.area)
1137 			snd_pcm_lib_free_pages(substream);
1138 		runtime->dma_area = cpcm->hw_buf.area;
1139 		runtime->dma_addr = cpcm->hw_buf.addr;
1140 		runtime->dma_bytes = cpcm->hw_buf.bytes;
1141 
1142 
1143 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1144 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
1145 			substream->ops = &snd_cs46xx_playback_ops;
1146 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
1147 			substream->ops = &snd_cs46xx_playback_rear_ops;
1148 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
1149 			substream->ops = &snd_cs46xx_playback_clfe_ops;
1150 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
1151 			substream->ops = &snd_cs46xx_playback_iec958_ops;
1152 		} else {
1153 			snd_BUG();
1154 		}
1155 #else
1156 		substream->ops = &snd_cs46xx_playback_ops;
1157 #endif
1158 
1159 	} else {
1160 		if (runtime->dma_area == cpcm->hw_buf.area) {
1161 			runtime->dma_area = NULL;
1162 			runtime->dma_addr = 0;
1163 			runtime->dma_bytes = 0;
1164 		}
1165 		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
1166 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1167 			mutex_unlock(&chip->spos_mutex);
1168 #endif
1169 			return err;
1170 		}
1171 
1172 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1173 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
1174 			substream->ops = &snd_cs46xx_playback_indirect_ops;
1175 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
1176 			substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
1177 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
1178 			substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
1179 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
1180 			substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
1181 		} else {
1182 			snd_BUG();
1183 		}
1184 #else
1185 		substream->ops = &snd_cs46xx_playback_indirect_ops;
1186 #endif
1187 
1188 	}
1189 
1190 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1191 	mutex_unlock(&chip->spos_mutex);
1192 #endif
1193 
1194 	return 0;
1195 }
1196 
1197 static int snd_cs46xx_playback_hw_free(struct snd_pcm_substream *substream)
1198 {
1199 	/*struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);*/
1200 	struct snd_pcm_runtime *runtime = substream->runtime;
1201 	struct snd_cs46xx_pcm *cpcm;
1202 
1203 	cpcm = runtime->private_data;
1204 
1205 	/* if play_back open fails, then this function
1206 	   is called and cpcm can actually be NULL here */
1207 	if (!cpcm) return -ENXIO;
1208 
1209 	if (runtime->dma_area != cpcm->hw_buf.area)
1210 		snd_pcm_lib_free_pages(substream);
1211 
1212 	runtime->dma_area = NULL;
1213 	runtime->dma_addr = 0;
1214 	runtime->dma_bytes = 0;
1215 
1216 	return 0;
1217 }
1218 
1219 static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
1220 {
1221 	unsigned int tmp;
1222 	unsigned int pfie;
1223 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1224 	struct snd_pcm_runtime *runtime = substream->runtime;
1225 	struct snd_cs46xx_pcm *cpcm;
1226 
1227 	cpcm = runtime->private_data;
1228 
1229 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1230 	if (snd_BUG_ON(!cpcm->pcm_channel))
1231 		return -ENXIO;
1232 
1233 	pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
1234 	pfie &= ~0x0000f03f;
1235 #else
1236 	/* old dsp */
1237 	pfie = snd_cs46xx_peek(chip, BA1_PFIE);
1238  	pfie &= ~0x0000f03f;
1239 #endif
1240 
1241 	cpcm->shift = 2;
1242 	/* if to convert from stereo to mono */
1243 	if (runtime->channels == 1) {
1244 		cpcm->shift--;
1245 		pfie |= 0x00002000;
1246 	}
1247 	/* if to convert from 8 bit to 16 bit */
1248 	if (snd_pcm_format_width(runtime->format) == 8) {
1249 		cpcm->shift--;
1250 		pfie |= 0x00001000;
1251 	}
1252 	/* if to convert to unsigned */
1253 	if (snd_pcm_format_unsigned(runtime->format))
1254 		pfie |= 0x00008000;
1255 
1256 	/* Never convert byte order when sample stream is 8 bit */
1257 	if (snd_pcm_format_width(runtime->format) != 8) {
1258 		/* convert from big endian to little endian */
1259 		if (snd_pcm_format_big_endian(runtime->format))
1260 			pfie |= 0x00004000;
1261 	}
1262 
1263 	memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
1264 	cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1265 	cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
1266 
1267 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1268 
1269 	tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
1270 	tmp &= ~0x000003ff;
1271 	tmp |= (4 << cpcm->shift) - 1;
1272 	/* playback transaction count register */
1273 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
1274 
1275 	/* playback format && interrupt enable */
1276 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
1277 #else
1278 	snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
1279 	tmp = snd_cs46xx_peek(chip, BA1_PDTC);
1280 	tmp &= ~0x000003ff;
1281 	tmp |= (4 << cpcm->shift) - 1;
1282 	snd_cs46xx_poke(chip, BA1_PDTC, tmp);
1283 	snd_cs46xx_poke(chip, BA1_PFIE, pfie);
1284 	snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
1285 #endif
1286 
1287 	return 0;
1288 }
1289 
1290 static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream,
1291 					struct snd_pcm_hw_params *hw_params)
1292 {
1293 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1294 	struct snd_pcm_runtime *runtime = substream->runtime;
1295 	int err;
1296 
1297 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1298 	cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
1299 #endif
1300 	if (runtime->periods == CS46XX_FRAGS) {
1301 		if (runtime->dma_area != chip->capt.hw_buf.area)
1302 			snd_pcm_lib_free_pages(substream);
1303 		runtime->dma_area = chip->capt.hw_buf.area;
1304 		runtime->dma_addr = chip->capt.hw_buf.addr;
1305 		runtime->dma_bytes = chip->capt.hw_buf.bytes;
1306 		substream->ops = &snd_cs46xx_capture_ops;
1307 	} else {
1308 		if (runtime->dma_area == chip->capt.hw_buf.area) {
1309 			runtime->dma_area = NULL;
1310 			runtime->dma_addr = 0;
1311 			runtime->dma_bytes = 0;
1312 		}
1313 		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1314 			return err;
1315 		substream->ops = &snd_cs46xx_capture_indirect_ops;
1316 	}
1317 
1318 	return 0;
1319 }
1320 
1321 static int snd_cs46xx_capture_hw_free(struct snd_pcm_substream *substream)
1322 {
1323 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1324 	struct snd_pcm_runtime *runtime = substream->runtime;
1325 
1326 	if (runtime->dma_area != chip->capt.hw_buf.area)
1327 		snd_pcm_lib_free_pages(substream);
1328 	runtime->dma_area = NULL;
1329 	runtime->dma_addr = 0;
1330 	runtime->dma_bytes = 0;
1331 
1332 	return 0;
1333 }
1334 
1335 static int snd_cs46xx_capture_prepare(struct snd_pcm_substream *substream)
1336 {
1337 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1338 	struct snd_pcm_runtime *runtime = substream->runtime;
1339 
1340 	snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
1341 	chip->capt.shift = 2;
1342 	memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
1343 	chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1344 	chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
1345 	snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
1346 
1347 	return 0;
1348 }
1349 
1350 static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
1351 {
1352 	struct snd_cs46xx *chip = dev_id;
1353 	u32 status1;
1354 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1355 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1356 	u32 status2;
1357 	int i;
1358 	struct snd_cs46xx_pcm *cpcm = NULL;
1359 #endif
1360 
1361 	/*
1362 	 *  Read the Interrupt Status Register to clear the interrupt
1363 	 */
1364 	status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
1365 	if ((status1 & 0x7fffffff) == 0) {
1366 		snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1367 		return IRQ_NONE;
1368 	}
1369 
1370 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1371 	status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
1372 
1373 	for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
1374 		if (i <= 15) {
1375 			if ( status1 & (1 << i) ) {
1376 				if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
1377 					if (chip->capt.substream)
1378 						snd_pcm_period_elapsed(chip->capt.substream);
1379 				} else {
1380 					if (ins->pcm_channels[i].active &&
1381 					    ins->pcm_channels[i].private_data &&
1382 					    !ins->pcm_channels[i].unlinked) {
1383 						cpcm = ins->pcm_channels[i].private_data;
1384 						snd_pcm_period_elapsed(cpcm->substream);
1385 					}
1386 				}
1387 			}
1388 		} else {
1389 			if ( status2 & (1 << (i - 16))) {
1390 				if (ins->pcm_channels[i].active &&
1391 				    ins->pcm_channels[i].private_data &&
1392 				    !ins->pcm_channels[i].unlinked) {
1393 					cpcm = ins->pcm_channels[i].private_data;
1394 					snd_pcm_period_elapsed(cpcm->substream);
1395 				}
1396 			}
1397 		}
1398 	}
1399 
1400 #else
1401 	/* old dsp */
1402 	if ((status1 & HISR_VC0) && chip->playback_pcm) {
1403 		if (chip->playback_pcm->substream)
1404 			snd_pcm_period_elapsed(chip->playback_pcm->substream);
1405 	}
1406 	if ((status1 & HISR_VC1) && chip->pcm) {
1407 		if (chip->capt.substream)
1408 			snd_pcm_period_elapsed(chip->capt.substream);
1409 	}
1410 #endif
1411 
1412 	if ((status1 & HISR_MIDI) && chip->rmidi) {
1413 		unsigned char c;
1414 
1415 		spin_lock(&chip->reg_lock);
1416 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
1417 			c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
1418 			if ((chip->midcr & MIDCR_RIE) == 0)
1419 				continue;
1420 			snd_rawmidi_receive(chip->midi_input, &c, 1);
1421 		}
1422 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
1423 			if ((chip->midcr & MIDCR_TIE) == 0)
1424 				break;
1425 			if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
1426 				chip->midcr &= ~MIDCR_TIE;
1427 				snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
1428 				break;
1429 			}
1430 			snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
1431 		}
1432 		spin_unlock(&chip->reg_lock);
1433 	}
1434 	/*
1435 	 *  EOI to the PCI part....reenables interrupts
1436 	 */
1437 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1438 
1439 	return IRQ_HANDLED;
1440 }
1441 
1442 static struct snd_pcm_hardware snd_cs46xx_playback =
1443 {
1444 	.info =			(SNDRV_PCM_INFO_MMAP |
1445 				 SNDRV_PCM_INFO_INTERLEAVED |
1446 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1447 				 /*SNDRV_PCM_INFO_RESUME*/),
1448 	.formats =		(SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1449 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
1450 				 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
1451 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1452 	.rate_min =		5500,
1453 	.rate_max =		48000,
1454 	.channels_min =		1,
1455 	.channels_max =		2,
1456 	.buffer_bytes_max =	(256 * 1024),
1457 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1458 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1459 	.periods_min =		CS46XX_FRAGS,
1460 	.periods_max =		1024,
1461 	.fifo_size =		0,
1462 };
1463 
1464 static struct snd_pcm_hardware snd_cs46xx_capture =
1465 {
1466 	.info =			(SNDRV_PCM_INFO_MMAP |
1467 				 SNDRV_PCM_INFO_INTERLEAVED |
1468 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1469 				 /*SNDRV_PCM_INFO_RESUME*/),
1470 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1471 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1472 	.rate_min =		5500,
1473 	.rate_max =		48000,
1474 	.channels_min =		2,
1475 	.channels_max =		2,
1476 	.buffer_bytes_max =	(256 * 1024),
1477 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1478 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1479 	.periods_min =		CS46XX_FRAGS,
1480 	.periods_max =		1024,
1481 	.fifo_size =		0,
1482 };
1483 
1484 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1485 
1486 static unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
1487 
1488 static struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
1489 	.count = ARRAY_SIZE(period_sizes),
1490 	.list = period_sizes,
1491 	.mask = 0
1492 };
1493 
1494 #endif
1495 
1496 static void snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime *runtime)
1497 {
1498 	kfree(runtime->private_data);
1499 }
1500 
1501 static int _cs46xx_playback_open_channel (struct snd_pcm_substream *substream,int pcm_channel_id)
1502 {
1503 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1504 	struct snd_cs46xx_pcm * cpcm;
1505 	struct snd_pcm_runtime *runtime = substream->runtime;
1506 
1507 	cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
1508 	if (cpcm == NULL)
1509 		return -ENOMEM;
1510 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1511 				PAGE_SIZE, &cpcm->hw_buf) < 0) {
1512 		kfree(cpcm);
1513 		return -ENOMEM;
1514 	}
1515 
1516 	runtime->hw = snd_cs46xx_playback;
1517 	runtime->private_data = cpcm;
1518 	runtime->private_free = snd_cs46xx_pcm_free_substream;
1519 
1520 	cpcm->substream = substream;
1521 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1522 	mutex_lock(&chip->spos_mutex);
1523 	cpcm->pcm_channel = NULL;
1524 	cpcm->pcm_channel_id = pcm_channel_id;
1525 
1526 
1527 	snd_pcm_hw_constraint_list(runtime, 0,
1528 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1529 				   &hw_constraints_period_sizes);
1530 
1531 	mutex_unlock(&chip->spos_mutex);
1532 #else
1533 	chip->playback_pcm = cpcm; /* HACK */
1534 #endif
1535 
1536 	if (chip->accept_valid)
1537 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1538 	chip->active_ctrl(chip, 1);
1539 
1540 	return 0;
1541 }
1542 
1543 static int snd_cs46xx_playback_open(struct snd_pcm_substream *substream)
1544 {
1545 	dev_dbg(substream->pcm->card->dev, "open front channel\n");
1546 	return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
1547 }
1548 
1549 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1550 static int snd_cs46xx_playback_open_rear(struct snd_pcm_substream *substream)
1551 {
1552 	dev_dbg(substream->pcm->card->dev, "open rear channel\n");
1553 	return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
1554 }
1555 
1556 static int snd_cs46xx_playback_open_clfe(struct snd_pcm_substream *substream)
1557 {
1558 	dev_dbg(substream->pcm->card->dev, "open center - LFE channel\n");
1559 	return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
1560 }
1561 
1562 static int snd_cs46xx_playback_open_iec958(struct snd_pcm_substream *substream)
1563 {
1564 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1565 
1566 	dev_dbg(chip->card->dev, "open raw iec958 channel\n");
1567 
1568 	mutex_lock(&chip->spos_mutex);
1569 	cs46xx_iec958_pre_open (chip);
1570 	mutex_unlock(&chip->spos_mutex);
1571 
1572 	return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
1573 }
1574 
1575 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream);
1576 
1577 static int snd_cs46xx_playback_close_iec958(struct snd_pcm_substream *substream)
1578 {
1579 	int err;
1580 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1581 
1582 	dev_dbg(chip->card->dev, "close raw iec958 channel\n");
1583 
1584 	err = snd_cs46xx_playback_close(substream);
1585 
1586 	mutex_lock(&chip->spos_mutex);
1587 	cs46xx_iec958_post_close (chip);
1588 	mutex_unlock(&chip->spos_mutex);
1589 
1590 	return err;
1591 }
1592 #endif
1593 
1594 static int snd_cs46xx_capture_open(struct snd_pcm_substream *substream)
1595 {
1596 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1597 
1598 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1599 				PAGE_SIZE, &chip->capt.hw_buf) < 0)
1600 		return -ENOMEM;
1601 	chip->capt.substream = substream;
1602 	substream->runtime->hw = snd_cs46xx_capture;
1603 
1604 	if (chip->accept_valid)
1605 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1606 
1607 	chip->active_ctrl(chip, 1);
1608 
1609 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1610 	snd_pcm_hw_constraint_list(substream->runtime, 0,
1611 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1612 				   &hw_constraints_period_sizes);
1613 #endif
1614 	return 0;
1615 }
1616 
1617 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream)
1618 {
1619 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1620 	struct snd_pcm_runtime *runtime = substream->runtime;
1621 	struct snd_cs46xx_pcm * cpcm;
1622 
1623 	cpcm = runtime->private_data;
1624 
1625 	/* when playback_open fails, then cpcm can be NULL */
1626 	if (!cpcm) return -ENXIO;
1627 
1628 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1629 	mutex_lock(&chip->spos_mutex);
1630 	if (cpcm->pcm_channel) {
1631 		cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
1632 		cpcm->pcm_channel = NULL;
1633 	}
1634 	mutex_unlock(&chip->spos_mutex);
1635 #else
1636 	chip->playback_pcm = NULL;
1637 #endif
1638 
1639 	cpcm->substream = NULL;
1640 	snd_dma_free_pages(&cpcm->hw_buf);
1641 	chip->active_ctrl(chip, -1);
1642 
1643 	return 0;
1644 }
1645 
1646 static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
1647 {
1648 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1649 
1650 	chip->capt.substream = NULL;
1651 	snd_dma_free_pages(&chip->capt.hw_buf);
1652 	chip->active_ctrl(chip, -1);
1653 
1654 	return 0;
1655 }
1656 
1657 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1658 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
1659 	.open =			snd_cs46xx_playback_open_rear,
1660 	.close =		snd_cs46xx_playback_close,
1661 	.ioctl =		snd_pcm_lib_ioctl,
1662 	.hw_params =		snd_cs46xx_playback_hw_params,
1663 	.hw_free =		snd_cs46xx_playback_hw_free,
1664 	.prepare =		snd_cs46xx_playback_prepare,
1665 	.trigger =		snd_cs46xx_playback_trigger,
1666 	.pointer =		snd_cs46xx_playback_direct_pointer,
1667 };
1668 
1669 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
1670 	.open =			snd_cs46xx_playback_open_rear,
1671 	.close =		snd_cs46xx_playback_close,
1672 	.ioctl =		snd_pcm_lib_ioctl,
1673 	.hw_params =		snd_cs46xx_playback_hw_params,
1674 	.hw_free =		snd_cs46xx_playback_hw_free,
1675 	.prepare =		snd_cs46xx_playback_prepare,
1676 	.trigger =		snd_cs46xx_playback_trigger,
1677 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1678 	.ack =			snd_cs46xx_playback_transfer,
1679 };
1680 
1681 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
1682 	.open =			snd_cs46xx_playback_open_clfe,
1683 	.close =		snd_cs46xx_playback_close,
1684 	.ioctl =		snd_pcm_lib_ioctl,
1685 	.hw_params =		snd_cs46xx_playback_hw_params,
1686 	.hw_free =		snd_cs46xx_playback_hw_free,
1687 	.prepare =		snd_cs46xx_playback_prepare,
1688 	.trigger =		snd_cs46xx_playback_trigger,
1689 	.pointer =		snd_cs46xx_playback_direct_pointer,
1690 };
1691 
1692 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
1693 	.open =			snd_cs46xx_playback_open_clfe,
1694 	.close =		snd_cs46xx_playback_close,
1695 	.ioctl =		snd_pcm_lib_ioctl,
1696 	.hw_params =		snd_cs46xx_playback_hw_params,
1697 	.hw_free =		snd_cs46xx_playback_hw_free,
1698 	.prepare =		snd_cs46xx_playback_prepare,
1699 	.trigger =		snd_cs46xx_playback_trigger,
1700 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1701 	.ack =			snd_cs46xx_playback_transfer,
1702 };
1703 
1704 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
1705 	.open =			snd_cs46xx_playback_open_iec958,
1706 	.close =		snd_cs46xx_playback_close_iec958,
1707 	.ioctl =		snd_pcm_lib_ioctl,
1708 	.hw_params =		snd_cs46xx_playback_hw_params,
1709 	.hw_free =		snd_cs46xx_playback_hw_free,
1710 	.prepare =		snd_cs46xx_playback_prepare,
1711 	.trigger =		snd_cs46xx_playback_trigger,
1712 	.pointer =		snd_cs46xx_playback_direct_pointer,
1713 };
1714 
1715 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
1716 	.open =			snd_cs46xx_playback_open_iec958,
1717 	.close =		snd_cs46xx_playback_close_iec958,
1718 	.ioctl =		snd_pcm_lib_ioctl,
1719 	.hw_params =		snd_cs46xx_playback_hw_params,
1720 	.hw_free =		snd_cs46xx_playback_hw_free,
1721 	.prepare =		snd_cs46xx_playback_prepare,
1722 	.trigger =		snd_cs46xx_playback_trigger,
1723 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1724 	.ack =			snd_cs46xx_playback_transfer,
1725 };
1726 
1727 #endif
1728 
1729 static struct snd_pcm_ops snd_cs46xx_playback_ops = {
1730 	.open =			snd_cs46xx_playback_open,
1731 	.close =		snd_cs46xx_playback_close,
1732 	.ioctl =		snd_pcm_lib_ioctl,
1733 	.hw_params =		snd_cs46xx_playback_hw_params,
1734 	.hw_free =		snd_cs46xx_playback_hw_free,
1735 	.prepare =		snd_cs46xx_playback_prepare,
1736 	.trigger =		snd_cs46xx_playback_trigger,
1737 	.pointer =		snd_cs46xx_playback_direct_pointer,
1738 };
1739 
1740 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
1741 	.open =			snd_cs46xx_playback_open,
1742 	.close =		snd_cs46xx_playback_close,
1743 	.ioctl =		snd_pcm_lib_ioctl,
1744 	.hw_params =		snd_cs46xx_playback_hw_params,
1745 	.hw_free =		snd_cs46xx_playback_hw_free,
1746 	.prepare =		snd_cs46xx_playback_prepare,
1747 	.trigger =		snd_cs46xx_playback_trigger,
1748 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1749 	.ack =			snd_cs46xx_playback_transfer,
1750 };
1751 
1752 static struct snd_pcm_ops snd_cs46xx_capture_ops = {
1753 	.open =			snd_cs46xx_capture_open,
1754 	.close =		snd_cs46xx_capture_close,
1755 	.ioctl =		snd_pcm_lib_ioctl,
1756 	.hw_params =		snd_cs46xx_capture_hw_params,
1757 	.hw_free =		snd_cs46xx_capture_hw_free,
1758 	.prepare =		snd_cs46xx_capture_prepare,
1759 	.trigger =		snd_cs46xx_capture_trigger,
1760 	.pointer =		snd_cs46xx_capture_direct_pointer,
1761 };
1762 
1763 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
1764 	.open =			snd_cs46xx_capture_open,
1765 	.close =		snd_cs46xx_capture_close,
1766 	.ioctl =		snd_pcm_lib_ioctl,
1767 	.hw_params =		snd_cs46xx_capture_hw_params,
1768 	.hw_free =		snd_cs46xx_capture_hw_free,
1769 	.prepare =		snd_cs46xx_capture_prepare,
1770 	.trigger =		snd_cs46xx_capture_trigger,
1771 	.pointer =		snd_cs46xx_capture_indirect_pointer,
1772 	.ack =			snd_cs46xx_capture_transfer,
1773 };
1774 
1775 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1776 #define MAX_PLAYBACK_CHANNELS	(DSP_MAX_PCM_CHANNELS - 1)
1777 #else
1778 #define MAX_PLAYBACK_CHANNELS	1
1779 #endif
1780 
1781 int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm)
1782 {
1783 	struct snd_pcm *pcm;
1784 	int err;
1785 
1786 	if (rpcm)
1787 		*rpcm = NULL;
1788 	if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
1789 		return err;
1790 
1791 	pcm->private_data = chip;
1792 
1793 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
1794 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
1795 
1796 	/* global setup */
1797 	pcm->info_flags = 0;
1798 	strcpy(pcm->name, "CS46xx");
1799 	chip->pcm = pcm;
1800 
1801 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1802 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1803 
1804 	if (rpcm)
1805 		*rpcm = pcm;
1806 
1807 	return 0;
1808 }
1809 
1810 
1811 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1812 int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device,
1813 			struct snd_pcm **rpcm)
1814 {
1815 	struct snd_pcm *pcm;
1816 	int err;
1817 
1818 	if (rpcm)
1819 		*rpcm = NULL;
1820 
1821 	if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1822 		return err;
1823 
1824 	pcm->private_data = chip;
1825 
1826 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
1827 
1828 	/* global setup */
1829 	pcm->info_flags = 0;
1830 	strcpy(pcm->name, "CS46xx - Rear");
1831 	chip->pcm_rear = pcm;
1832 
1833 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1834 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1835 
1836 	if (rpcm)
1837 		*rpcm = pcm;
1838 
1839 	return 0;
1840 }
1841 
1842 int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device,
1843 			      struct snd_pcm **rpcm)
1844 {
1845 	struct snd_pcm *pcm;
1846 	int err;
1847 
1848 	if (rpcm)
1849 		*rpcm = NULL;
1850 
1851 	if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1852 		return err;
1853 
1854 	pcm->private_data = chip;
1855 
1856 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
1857 
1858 	/* global setup */
1859 	pcm->info_flags = 0;
1860 	strcpy(pcm->name, "CS46xx - Center LFE");
1861 	chip->pcm_center_lfe = pcm;
1862 
1863 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1864 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1865 
1866 	if (rpcm)
1867 		*rpcm = pcm;
1868 
1869 	return 0;
1870 }
1871 
1872 int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device,
1873 			  struct snd_pcm **rpcm)
1874 {
1875 	struct snd_pcm *pcm;
1876 	int err;
1877 
1878 	if (rpcm)
1879 		*rpcm = NULL;
1880 
1881 	if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
1882 		return err;
1883 
1884 	pcm->private_data = chip;
1885 
1886 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
1887 
1888 	/* global setup */
1889 	pcm->info_flags = 0;
1890 	strcpy(pcm->name, "CS46xx - IEC958");
1891 	chip->pcm_rear = pcm;
1892 
1893 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1894 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1895 
1896 	if (rpcm)
1897 		*rpcm = pcm;
1898 
1899 	return 0;
1900 }
1901 #endif
1902 
1903 /*
1904  *  Mixer routines
1905  */
1906 static void snd_cs46xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1907 {
1908 	struct snd_cs46xx *chip = bus->private_data;
1909 
1910 	chip->ac97_bus = NULL;
1911 }
1912 
1913 static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
1914 {
1915 	struct snd_cs46xx *chip = ac97->private_data;
1916 
1917 	if (snd_BUG_ON(ac97 != chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] &&
1918 		       ac97 != chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]))
1919 		return;
1920 
1921 	if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
1922 		chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
1923 		chip->eapd_switch = NULL;
1924 	}
1925 	else
1926 		chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
1927 }
1928 
1929 static int snd_cs46xx_vol_info(struct snd_kcontrol *kcontrol,
1930 			       struct snd_ctl_elem_info *uinfo)
1931 {
1932 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1933 	uinfo->count = 2;
1934 	uinfo->value.integer.min = 0;
1935 	uinfo->value.integer.max = 0x7fff;
1936 	return 0;
1937 }
1938 
1939 static int snd_cs46xx_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1940 {
1941 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1942 	int reg = kcontrol->private_value;
1943 	unsigned int val = snd_cs46xx_peek(chip, reg);
1944 	ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
1945 	ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
1946 	return 0;
1947 }
1948 
1949 static int snd_cs46xx_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1950 {
1951 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1952 	int reg = kcontrol->private_value;
1953 	unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 |
1954 			    (0xffff - ucontrol->value.integer.value[1]));
1955 	unsigned int old = snd_cs46xx_peek(chip, reg);
1956 	int change = (old != val);
1957 
1958 	if (change) {
1959 		snd_cs46xx_poke(chip, reg, val);
1960 	}
1961 
1962 	return change;
1963 }
1964 
1965 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1966 
1967 static int snd_cs46xx_vol_dac_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1968 {
1969 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1970 
1971 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
1972 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
1973 
1974 	return 0;
1975 }
1976 
1977 static int snd_cs46xx_vol_dac_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1978 {
1979 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1980 	int change = 0;
1981 
1982 	if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
1983 	    chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
1984 		cs46xx_dsp_set_dac_volume(chip,
1985 					  ucontrol->value.integer.value[0],
1986 					  ucontrol->value.integer.value[1]);
1987 		change = 1;
1988 	}
1989 
1990 	return change;
1991 }
1992 
1993 #if 0
1994 static int snd_cs46xx_vol_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1995 {
1996 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1997 
1998 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
1999 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
2000 	return 0;
2001 }
2002 
2003 static int snd_cs46xx_vol_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2004 {
2005 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2006 	int change = 0;
2007 
2008 	if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
2009 	    chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
2010 		cs46xx_dsp_set_iec958_volume (chip,
2011 					      ucontrol->value.integer.value[0],
2012 					      ucontrol->value.integer.value[1]);
2013 		change = 1;
2014 	}
2015 
2016 	return change;
2017 }
2018 #endif
2019 
2020 #define snd_mixer_boolean_info		snd_ctl_boolean_mono_info
2021 
2022 static int snd_cs46xx_iec958_get(struct snd_kcontrol *kcontrol,
2023                                  struct snd_ctl_elem_value *ucontrol)
2024 {
2025 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2026 	int reg = kcontrol->private_value;
2027 
2028 	if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
2029 		ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
2030 	else
2031 		ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
2032 
2033 	return 0;
2034 }
2035 
2036 static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol,
2037                                   struct snd_ctl_elem_value *ucontrol)
2038 {
2039 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2040 	int change, res;
2041 
2042 	switch (kcontrol->private_value) {
2043 	case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
2044 		mutex_lock(&chip->spos_mutex);
2045 		change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
2046 		if (ucontrol->value.integer.value[0] && !change)
2047 			cs46xx_dsp_enable_spdif_out(chip);
2048 		else if (change && !ucontrol->value.integer.value[0])
2049 			cs46xx_dsp_disable_spdif_out(chip);
2050 
2051 		res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
2052 		mutex_unlock(&chip->spos_mutex);
2053 		break;
2054 	case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
2055 		change = chip->dsp_spos_instance->spdif_status_in;
2056 		if (ucontrol->value.integer.value[0] && !change) {
2057 			cs46xx_dsp_enable_spdif_in(chip);
2058 			/* restore volume */
2059 		}
2060 		else if (change && !ucontrol->value.integer.value[0])
2061 			cs46xx_dsp_disable_spdif_in(chip);
2062 
2063 		res = (change != chip->dsp_spos_instance->spdif_status_in);
2064 		break;
2065 	default:
2066 		res = -EINVAL;
2067 		snd_BUG(); /* should never happen ... */
2068 	}
2069 
2070 	return res;
2071 }
2072 
2073 static int snd_cs46xx_adc_capture_get(struct snd_kcontrol *kcontrol,
2074                                       struct snd_ctl_elem_value *ucontrol)
2075 {
2076 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2077 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2078 
2079 	if (ins->adc_input != NULL)
2080 		ucontrol->value.integer.value[0] = 1;
2081 	else
2082 		ucontrol->value.integer.value[0] = 0;
2083 
2084 	return 0;
2085 }
2086 
2087 static int snd_cs46xx_adc_capture_put(struct snd_kcontrol *kcontrol,
2088                                       struct snd_ctl_elem_value *ucontrol)
2089 {
2090 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2091 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2092 	int change = 0;
2093 
2094 	if (ucontrol->value.integer.value[0] && !ins->adc_input) {
2095 		cs46xx_dsp_enable_adc_capture(chip);
2096 		change = 1;
2097 	} else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
2098 		cs46xx_dsp_disable_adc_capture(chip);
2099 		change = 1;
2100 	}
2101 	return change;
2102 }
2103 
2104 static int snd_cs46xx_pcm_capture_get(struct snd_kcontrol *kcontrol,
2105                                       struct snd_ctl_elem_value *ucontrol)
2106 {
2107 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2108 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2109 
2110 	if (ins->pcm_input != NULL)
2111 		ucontrol->value.integer.value[0] = 1;
2112 	else
2113 		ucontrol->value.integer.value[0] = 0;
2114 
2115 	return 0;
2116 }
2117 
2118 
2119 static int snd_cs46xx_pcm_capture_put(struct snd_kcontrol *kcontrol,
2120                                       struct snd_ctl_elem_value *ucontrol)
2121 {
2122 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2123 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2124 	int change = 0;
2125 
2126 	if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
2127 		cs46xx_dsp_enable_pcm_capture(chip);
2128 		change = 1;
2129 	} else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
2130 		cs46xx_dsp_disable_pcm_capture(chip);
2131 		change = 1;
2132 	}
2133 
2134 	return change;
2135 }
2136 
2137 static int snd_herc_spdif_select_get(struct snd_kcontrol *kcontrol,
2138                                      struct snd_ctl_elem_value *ucontrol)
2139 {
2140 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2141 
2142 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
2143 
2144 	if (val1 & EGPIODR_GPOE0)
2145 		ucontrol->value.integer.value[0] = 1;
2146 	else
2147 		ucontrol->value.integer.value[0] = 0;
2148 
2149 	return 0;
2150 }
2151 
2152 /*
2153  *	Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
2154  */
2155 static int snd_herc_spdif_select_put(struct snd_kcontrol *kcontrol,
2156                                        struct snd_ctl_elem_value *ucontrol)
2157 {
2158 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2159 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
2160 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
2161 
2162 	if (ucontrol->value.integer.value[0]) {
2163 		/* optical is default */
2164 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
2165 				   EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
2166 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
2167 				   EGPIOPTR_GPPT0 | val2); /* open-drain on output */
2168 	} else {
2169 		/* coaxial */
2170 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
2171 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
2172 	}
2173 
2174 	/* checking diff from the EGPIO direction register
2175 	   should be enough */
2176 	return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
2177 }
2178 
2179 
2180 static int snd_cs46xx_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2181 {
2182 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2183 	uinfo->count = 1;
2184 	return 0;
2185 }
2186 
2187 static int snd_cs46xx_spdif_default_get(struct snd_kcontrol *kcontrol,
2188 					struct snd_ctl_elem_value *ucontrol)
2189 {
2190 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2191 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2192 
2193 	mutex_lock(&chip->spos_mutex);
2194 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
2195 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
2196 	ucontrol->value.iec958.status[2] = 0;
2197 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
2198 	mutex_unlock(&chip->spos_mutex);
2199 
2200 	return 0;
2201 }
2202 
2203 static int snd_cs46xx_spdif_default_put(struct snd_kcontrol *kcontrol,
2204 					struct snd_ctl_elem_value *ucontrol)
2205 {
2206 	struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2207 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2208 	unsigned int val;
2209 	int change;
2210 
2211 	mutex_lock(&chip->spos_mutex);
2212 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2213 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
2214 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
2215 		/* left and right validity bit */
2216 		(1 << 13) | (1 << 12);
2217 
2218 
2219 	change = (unsigned int)ins->spdif_csuv_default != val;
2220 	ins->spdif_csuv_default = val;
2221 
2222 	if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
2223 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2224 
2225 	mutex_unlock(&chip->spos_mutex);
2226 
2227 	return change;
2228 }
2229 
2230 static int snd_cs46xx_spdif_mask_get(struct snd_kcontrol *kcontrol,
2231 				     struct snd_ctl_elem_value *ucontrol)
2232 {
2233 	ucontrol->value.iec958.status[0] = 0xff;
2234 	ucontrol->value.iec958.status[1] = 0xff;
2235 	ucontrol->value.iec958.status[2] = 0x00;
2236 	ucontrol->value.iec958.status[3] = 0xff;
2237 	return 0;
2238 }
2239 
2240 static int snd_cs46xx_spdif_stream_get(struct snd_kcontrol *kcontrol,
2241                                          struct snd_ctl_elem_value *ucontrol)
2242 {
2243 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2244 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2245 
2246 	mutex_lock(&chip->spos_mutex);
2247 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
2248 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
2249 	ucontrol->value.iec958.status[2] = 0;
2250 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
2251 	mutex_unlock(&chip->spos_mutex);
2252 
2253 	return 0;
2254 }
2255 
2256 static int snd_cs46xx_spdif_stream_put(struct snd_kcontrol *kcontrol,
2257                                         struct snd_ctl_elem_value *ucontrol)
2258 {
2259 	struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2260 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2261 	unsigned int val;
2262 	int change;
2263 
2264 	mutex_lock(&chip->spos_mutex);
2265 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2266 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
2267 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
2268 		/* left and right validity bit */
2269 		(1 << 13) | (1 << 12);
2270 
2271 
2272 	change = ins->spdif_csuv_stream != val;
2273 	ins->spdif_csuv_stream = val;
2274 
2275 	if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
2276 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2277 
2278 	mutex_unlock(&chip->spos_mutex);
2279 
2280 	return change;
2281 }
2282 
2283 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2284 
2285 
2286 static struct snd_kcontrol_new snd_cs46xx_controls[] = {
2287 {
2288 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2289 	.name = "DAC Volume",
2290 	.info = snd_cs46xx_vol_info,
2291 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2292 	.get = snd_cs46xx_vol_get,
2293 	.put = snd_cs46xx_vol_put,
2294 	.private_value = BA1_PVOL,
2295 #else
2296 	.get = snd_cs46xx_vol_dac_get,
2297 	.put = snd_cs46xx_vol_dac_put,
2298 #endif
2299 },
2300 
2301 {
2302 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2303 	.name = "ADC Volume",
2304 	.info = snd_cs46xx_vol_info,
2305 	.get = snd_cs46xx_vol_get,
2306 	.put = snd_cs46xx_vol_put,
2307 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2308 	.private_value = BA1_CVOL,
2309 #else
2310 	.private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
2311 #endif
2312 },
2313 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2314 {
2315 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2316 	.name = "ADC Capture Switch",
2317 	.info = snd_mixer_boolean_info,
2318 	.get = snd_cs46xx_adc_capture_get,
2319 	.put = snd_cs46xx_adc_capture_put
2320 },
2321 {
2322 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2323 	.name = "DAC Capture Switch",
2324 	.info = snd_mixer_boolean_info,
2325 	.get = snd_cs46xx_pcm_capture_get,
2326 	.put = snd_cs46xx_pcm_capture_put
2327 },
2328 {
2329 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2330 	.name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
2331 	.info = snd_mixer_boolean_info,
2332 	.get = snd_cs46xx_iec958_get,
2333 	.put = snd_cs46xx_iec958_put,
2334 	.private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
2335 },
2336 {
2337 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2338 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
2339 	.info = snd_mixer_boolean_info,
2340 	.get = snd_cs46xx_iec958_get,
2341 	.put = snd_cs46xx_iec958_put,
2342 	.private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
2343 },
2344 #if 0
2345 /* Input IEC958 volume does not work for the moment. (Benny) */
2346 {
2347 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2348 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
2349 	.info = snd_cs46xx_vol_info,
2350 	.get = snd_cs46xx_vol_iec958_get,
2351 	.put = snd_cs46xx_vol_iec958_put,
2352 	.private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
2353 },
2354 #endif
2355 {
2356 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2357 	.name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2358 	.info =	 snd_cs46xx_spdif_info,
2359 	.get =	 snd_cs46xx_spdif_default_get,
2360 	.put =   snd_cs46xx_spdif_default_put,
2361 },
2362 {
2363 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2364 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2365 	.info =	 snd_cs46xx_spdif_info,
2366         .get =	 snd_cs46xx_spdif_mask_get,
2367 	.access = SNDRV_CTL_ELEM_ACCESS_READ
2368 },
2369 {
2370 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2371 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2372 	.info =	 snd_cs46xx_spdif_info,
2373 	.get =	 snd_cs46xx_spdif_stream_get,
2374 	.put =	 snd_cs46xx_spdif_stream_put
2375 },
2376 
2377 #endif
2378 };
2379 
2380 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2381 /* set primary cs4294 codec into Extended Audio Mode */
2382 static int snd_cs46xx_front_dup_get(struct snd_kcontrol *kcontrol,
2383 				    struct snd_ctl_elem_value *ucontrol)
2384 {
2385 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2386 	unsigned short val;
2387 	val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
2388 	ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
2389 	return 0;
2390 }
2391 
2392 static int snd_cs46xx_front_dup_put(struct snd_kcontrol *kcontrol,
2393 				    struct snd_ctl_elem_value *ucontrol)
2394 {
2395 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2396 	return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2397 				    AC97_CSR_ACMODE, 0x200,
2398 				    ucontrol->value.integer.value[0] ? 0 : 0x200);
2399 }
2400 
2401 static struct snd_kcontrol_new snd_cs46xx_front_dup_ctl = {
2402 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2403 	.name = "Duplicate Front",
2404 	.info = snd_mixer_boolean_info,
2405 	.get = snd_cs46xx_front_dup_get,
2406 	.put = snd_cs46xx_front_dup_put,
2407 };
2408 #endif
2409 
2410 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2411 /* Only available on the Hercules Game Theater XP soundcard */
2412 static struct snd_kcontrol_new snd_hercules_controls[] = {
2413 {
2414 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2415 	.name = "Optical/Coaxial SPDIF Input Switch",
2416 	.info = snd_mixer_boolean_info,
2417 	.get = snd_herc_spdif_select_get,
2418 	.put = snd_herc_spdif_select_put,
2419 },
2420 };
2421 
2422 
2423 static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
2424 {
2425 	unsigned long end_time;
2426 	int err;
2427 
2428 	/* reset to defaults */
2429 	snd_ac97_write(ac97, AC97_RESET, 0);
2430 
2431 	/* set the desired CODEC mode */
2432 	if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
2433 		dev_dbg(ac97->bus->card->dev, "CODEC1 mode %04x\n", 0x0);
2434 		snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x0);
2435 	} else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
2436 		dev_dbg(ac97->bus->card->dev, "CODEC2 mode %04x\n", 0x3);
2437 		snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x3);
2438 	} else {
2439 		snd_BUG(); /* should never happen ... */
2440 	}
2441 
2442 	udelay(50);
2443 
2444 	/* it's necessary to wait awhile until registers are accessible after RESET */
2445 	/* because the PCM or MASTER volume registers can be modified, */
2446 	/* the REC_GAIN register is used for tests */
2447 	end_time = jiffies + HZ;
2448 	do {
2449 		unsigned short ext_mid;
2450 
2451 		/* use preliminary reads to settle the communication */
2452 		snd_ac97_read(ac97, AC97_RESET);
2453 		snd_ac97_read(ac97, AC97_VENDOR_ID1);
2454 		snd_ac97_read(ac97, AC97_VENDOR_ID2);
2455 		/* modem? */
2456 		ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2457 		if (ext_mid != 0xffff && (ext_mid & 1) != 0)
2458 			return;
2459 
2460 		/* test if we can write to the record gain volume register */
2461 		snd_ac97_write(ac97, AC97_REC_GAIN, 0x8a05);
2462 		if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
2463 			return;
2464 
2465 		msleep(10);
2466 	} while (time_after_eq(end_time, jiffies));
2467 
2468 	dev_err(ac97->bus->card->dev,
2469 		"CS46xx secondary codec doesn't respond!\n");
2470 }
2471 #endif
2472 
2473 static int cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
2474 {
2475 	int idx, err;
2476 	struct snd_ac97_template ac97;
2477 
2478 	memset(&ac97, 0, sizeof(ac97));
2479 	ac97.private_data = chip;
2480 	ac97.private_free = snd_cs46xx_mixer_free_ac97;
2481 	ac97.num = codec;
2482 	if (chip->amplifier_ctrl == amp_voyetra)
2483 		ac97.scaps = AC97_SCAP_INV_EAPD;
2484 
2485 	if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
2486 		snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
2487 		udelay(10);
2488 		if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
2489 			dev_dbg(chip->card->dev,
2490 				"seconadry codec not present\n");
2491 			return -ENXIO;
2492 		}
2493 	}
2494 
2495 	snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
2496 	for (idx = 0; idx < 100; ++idx) {
2497 		if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
2498 			err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
2499 			return err;
2500 		}
2501 		msleep(10);
2502 	}
2503 	dev_dbg(chip->card->dev, "codec %d detection timeout\n", codec);
2504 	return -ENXIO;
2505 }
2506 
2507 int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
2508 {
2509 	struct snd_card *card = chip->card;
2510 	struct snd_ctl_elem_id id;
2511 	int err;
2512 	unsigned int idx;
2513 	static struct snd_ac97_bus_ops ops = {
2514 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2515 		.reset = snd_cs46xx_codec_reset,
2516 #endif
2517 		.write = snd_cs46xx_ac97_write,
2518 		.read = snd_cs46xx_ac97_read,
2519 	};
2520 
2521 	/* detect primary codec */
2522 	chip->nr_ac97_codecs = 0;
2523 	dev_dbg(chip->card->dev, "detecting primary codec\n");
2524 	if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
2525 		return err;
2526 	chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
2527 
2528 	if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
2529 		return -ENXIO;
2530 	chip->nr_ac97_codecs = 1;
2531 
2532 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2533 	dev_dbg(chip->card->dev, "detecting seconadry codec\n");
2534 	/* try detect a secondary codec */
2535 	if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
2536 		chip->nr_ac97_codecs = 2;
2537 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2538 
2539 	/* add cs4630 mixer controls */
2540 	for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
2541 		struct snd_kcontrol *kctl;
2542 		kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
2543 		if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
2544 			kctl->id.device = spdif_device;
2545 		if ((err = snd_ctl_add(card, kctl)) < 0)
2546 			return err;
2547 	}
2548 
2549 	/* get EAPD mixer switch (for voyetra hack) */
2550 	memset(&id, 0, sizeof(id));
2551 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2552 	strcpy(id.name, "External Amplifier");
2553 	chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
2554 
2555 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2556 	if (chip->nr_ac97_codecs == 1) {
2557 		unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
2558 		if (id2 == 0x592b || id2 == 0x592d) {
2559 			err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
2560 			if (err < 0)
2561 				return err;
2562 			snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2563 					     AC97_CSR_ACMODE, 0x200);
2564 		}
2565 	}
2566 	/* do soundcard specific mixer setup */
2567 	if (chip->mixer_init) {
2568 		dev_dbg(chip->card->dev, "calling chip->mixer_init(chip);\n");
2569 		chip->mixer_init(chip);
2570 	}
2571 #endif
2572 
2573  	/* turn on amplifier */
2574 	chip->amplifier_ctrl(chip, 1);
2575 
2576 	return 0;
2577 }
2578 
2579 /*
2580  *  RawMIDI interface
2581  */
2582 
2583 static void snd_cs46xx_midi_reset(struct snd_cs46xx *chip)
2584 {
2585 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
2586 	udelay(100);
2587 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2588 }
2589 
2590 static int snd_cs46xx_midi_input_open(struct snd_rawmidi_substream *substream)
2591 {
2592 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2593 
2594 	chip->active_ctrl(chip, 1);
2595 	spin_lock_irq(&chip->reg_lock);
2596 	chip->uartm |= CS46XX_MODE_INPUT;
2597 	chip->midcr |= MIDCR_RXE;
2598 	chip->midi_input = substream;
2599 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2600 		snd_cs46xx_midi_reset(chip);
2601 	} else {
2602 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2603 	}
2604 	spin_unlock_irq(&chip->reg_lock);
2605 	return 0;
2606 }
2607 
2608 static int snd_cs46xx_midi_input_close(struct snd_rawmidi_substream *substream)
2609 {
2610 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2611 
2612 	spin_lock_irq(&chip->reg_lock);
2613 	chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
2614 	chip->midi_input = NULL;
2615 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2616 		snd_cs46xx_midi_reset(chip);
2617 	} else {
2618 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2619 	}
2620 	chip->uartm &= ~CS46XX_MODE_INPUT;
2621 	spin_unlock_irq(&chip->reg_lock);
2622 	chip->active_ctrl(chip, -1);
2623 	return 0;
2624 }
2625 
2626 static int snd_cs46xx_midi_output_open(struct snd_rawmidi_substream *substream)
2627 {
2628 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2629 
2630 	chip->active_ctrl(chip, 1);
2631 
2632 	spin_lock_irq(&chip->reg_lock);
2633 	chip->uartm |= CS46XX_MODE_OUTPUT;
2634 	chip->midcr |= MIDCR_TXE;
2635 	chip->midi_output = substream;
2636 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2637 		snd_cs46xx_midi_reset(chip);
2638 	} else {
2639 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2640 	}
2641 	spin_unlock_irq(&chip->reg_lock);
2642 	return 0;
2643 }
2644 
2645 static int snd_cs46xx_midi_output_close(struct snd_rawmidi_substream *substream)
2646 {
2647 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2648 
2649 	spin_lock_irq(&chip->reg_lock);
2650 	chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
2651 	chip->midi_output = NULL;
2652 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2653 		snd_cs46xx_midi_reset(chip);
2654 	} else {
2655 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2656 	}
2657 	chip->uartm &= ~CS46XX_MODE_OUTPUT;
2658 	spin_unlock_irq(&chip->reg_lock);
2659 	chip->active_ctrl(chip, -1);
2660 	return 0;
2661 }
2662 
2663 static void snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
2664 {
2665 	unsigned long flags;
2666 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2667 
2668 	spin_lock_irqsave(&chip->reg_lock, flags);
2669 	if (up) {
2670 		if ((chip->midcr & MIDCR_RIE) == 0) {
2671 			chip->midcr |= MIDCR_RIE;
2672 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2673 		}
2674 	} else {
2675 		if (chip->midcr & MIDCR_RIE) {
2676 			chip->midcr &= ~MIDCR_RIE;
2677 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2678 		}
2679 	}
2680 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2681 }
2682 
2683 static void snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
2684 {
2685 	unsigned long flags;
2686 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2687 	unsigned char byte;
2688 
2689 	spin_lock_irqsave(&chip->reg_lock, flags);
2690 	if (up) {
2691 		if ((chip->midcr & MIDCR_TIE) == 0) {
2692 			chip->midcr |= MIDCR_TIE;
2693 			/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2694 			while ((chip->midcr & MIDCR_TIE) &&
2695 			       (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
2696 				if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2697 					chip->midcr &= ~MIDCR_TIE;
2698 				} else {
2699 					snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
2700 				}
2701 			}
2702 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2703 		}
2704 	} else {
2705 		if (chip->midcr & MIDCR_TIE) {
2706 			chip->midcr &= ~MIDCR_TIE;
2707 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2708 		}
2709 	}
2710 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2711 }
2712 
2713 static struct snd_rawmidi_ops snd_cs46xx_midi_output =
2714 {
2715 	.open =		snd_cs46xx_midi_output_open,
2716 	.close =	snd_cs46xx_midi_output_close,
2717 	.trigger =	snd_cs46xx_midi_output_trigger,
2718 };
2719 
2720 static struct snd_rawmidi_ops snd_cs46xx_midi_input =
2721 {
2722 	.open =		snd_cs46xx_midi_input_open,
2723 	.close =	snd_cs46xx_midi_input_close,
2724 	.trigger =	snd_cs46xx_midi_input_trigger,
2725 };
2726 
2727 int snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rrawmidi)
2728 {
2729 	struct snd_rawmidi *rmidi;
2730 	int err;
2731 
2732 	if (rrawmidi)
2733 		*rrawmidi = NULL;
2734 	if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
2735 		return err;
2736 	strcpy(rmidi->name, "CS46XX");
2737 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
2738 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
2739 	rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
2740 	rmidi->private_data = chip;
2741 	chip->rmidi = rmidi;
2742 	if (rrawmidi)
2743 		*rrawmidi = NULL;
2744 	return 0;
2745 }
2746 
2747 
2748 /*
2749  * gameport interface
2750  */
2751 
2752 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
2753 
2754 static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
2755 {
2756 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2757 
2758 	if (snd_BUG_ON(!chip))
2759 		return;
2760 	snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
2761 }
2762 
2763 static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
2764 {
2765 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2766 
2767 	if (snd_BUG_ON(!chip))
2768 		return 0;
2769 	return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
2770 }
2771 
2772 static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
2773 {
2774 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2775 	unsigned js1, js2, jst;
2776 
2777 	if (snd_BUG_ON(!chip))
2778 		return 0;
2779 
2780 	js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
2781 	js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
2782 	jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
2783 
2784 	*buttons = (~jst >> 4) & 0x0F;
2785 
2786 	axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
2787 	axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
2788 	axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
2789 	axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
2790 
2791 	for(jst=0;jst<4;++jst)
2792 		if(axes[jst]==0xFFFF) axes[jst] = -1;
2793 	return 0;
2794 }
2795 
2796 static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
2797 {
2798 	switch (mode) {
2799 	case GAMEPORT_MODE_COOKED:
2800 		return 0;
2801 	case GAMEPORT_MODE_RAW:
2802 		return 0;
2803 	default:
2804 		return -1;
2805 	}
2806 	return 0;
2807 }
2808 
2809 int snd_cs46xx_gameport(struct snd_cs46xx *chip)
2810 {
2811 	struct gameport *gp;
2812 
2813 	chip->gameport = gp = gameport_allocate_port();
2814 	if (!gp) {
2815 		dev_err(chip->card->dev,
2816 			"cannot allocate memory for gameport\n");
2817 		return -ENOMEM;
2818 	}
2819 
2820 	gameport_set_name(gp, "CS46xx Gameport");
2821 	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
2822 	gameport_set_dev_parent(gp, &chip->pci->dev);
2823 	gameport_set_port_data(gp, chip);
2824 
2825 	gp->open = snd_cs46xx_gameport_open;
2826 	gp->read = snd_cs46xx_gameport_read;
2827 	gp->trigger = snd_cs46xx_gameport_trigger;
2828 	gp->cooked_read = snd_cs46xx_gameport_cooked_read;
2829 
2830 	snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
2831 	snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
2832 
2833 	gameport_register_port(gp);
2834 
2835 	return 0;
2836 }
2837 
2838 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip)
2839 {
2840 	if (chip->gameport) {
2841 		gameport_unregister_port(chip->gameport);
2842 		chip->gameport = NULL;
2843 	}
2844 }
2845 #else
2846 int snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
2847 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip) { }
2848 #endif /* CONFIG_GAMEPORT */
2849 
2850 #ifdef CONFIG_PROC_FS
2851 /*
2852  *  proc interface
2853  */
2854 
2855 static ssize_t snd_cs46xx_io_read(struct snd_info_entry *entry,
2856 				  void *file_private_data,
2857 				  struct file *file, char __user *buf,
2858 				  size_t count, loff_t pos)
2859 {
2860 	struct snd_cs46xx_region *region = entry->private_data;
2861 
2862 	if (copy_to_user_fromio(buf, region->remap_addr + pos, count))
2863 		return -EFAULT;
2864 	return count;
2865 }
2866 
2867 static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
2868 	.read = snd_cs46xx_io_read,
2869 };
2870 
2871 static int snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
2872 {
2873 	struct snd_info_entry *entry;
2874 	int idx;
2875 
2876 	for (idx = 0; idx < 5; idx++) {
2877 		struct snd_cs46xx_region *region = &chip->region.idx[idx];
2878 		if (! snd_card_proc_new(card, region->name, &entry)) {
2879 			entry->content = SNDRV_INFO_CONTENT_DATA;
2880 			entry->private_data = chip;
2881 			entry->c.ops = &snd_cs46xx_proc_io_ops;
2882 			entry->size = region->size;
2883 			entry->mode = S_IFREG | S_IRUSR;
2884 		}
2885 	}
2886 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2887 	cs46xx_dsp_proc_init(card, chip);
2888 #endif
2889 	return 0;
2890 }
2891 
2892 static int snd_cs46xx_proc_done(struct snd_cs46xx *chip)
2893 {
2894 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2895 	cs46xx_dsp_proc_done(chip);
2896 #endif
2897 	return 0;
2898 }
2899 #else /* !CONFIG_PROC_FS */
2900 #define snd_cs46xx_proc_init(card, chip)
2901 #define snd_cs46xx_proc_done(chip)
2902 #endif
2903 
2904 /*
2905  * stop the h/w
2906  */
2907 static void snd_cs46xx_hw_stop(struct snd_cs46xx *chip)
2908 {
2909 	unsigned int tmp;
2910 
2911 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
2912 	tmp &= ~0x0000f03f;
2913 	tmp |=  0x00000010;
2914 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt disable */
2915 
2916 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
2917 	tmp &= ~0x0000003f;
2918 	tmp |=  0x00000011;
2919 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt disable */
2920 
2921 	/*
2922          *  Stop playback DMA.
2923 	 */
2924 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
2925 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
2926 
2927 	/*
2928          *  Stop capture DMA.
2929 	 */
2930 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
2931 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
2932 
2933 	/*
2934          *  Reset the processor.
2935          */
2936 	snd_cs46xx_reset(chip);
2937 
2938 	snd_cs46xx_proc_stop(chip);
2939 
2940 	/*
2941 	 *  Power down the PLL.
2942 	 */
2943 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2944 
2945 	/*
2946 	 *  Turn off the Processor by turning off the software clock enable flag in
2947 	 *  the clock control register.
2948 	 */
2949 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
2950 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
2951 }
2952 
2953 
2954 static int snd_cs46xx_free(struct snd_cs46xx *chip)
2955 {
2956 	int idx;
2957 
2958 	if (snd_BUG_ON(!chip))
2959 		return -EINVAL;
2960 
2961 	if (chip->active_ctrl)
2962 		chip->active_ctrl(chip, 1);
2963 
2964 	snd_cs46xx_remove_gameport(chip);
2965 
2966 	if (chip->amplifier_ctrl)
2967 		chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
2968 
2969 	snd_cs46xx_proc_done(chip);
2970 
2971 	if (chip->region.idx[0].resource)
2972 		snd_cs46xx_hw_stop(chip);
2973 
2974 	if (chip->irq >= 0)
2975 		free_irq(chip->irq, chip);
2976 
2977 	if (chip->active_ctrl)
2978 		chip->active_ctrl(chip, -chip->amplifier);
2979 
2980 	for (idx = 0; idx < 5; idx++) {
2981 		struct snd_cs46xx_region *region = &chip->region.idx[idx];
2982 		if (region->remap_addr)
2983 			iounmap(region->remap_addr);
2984 		release_and_free_resource(region->resource);
2985 	}
2986 
2987 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2988 	if (chip->dsp_spos_instance) {
2989 		cs46xx_dsp_spos_destroy(chip);
2990 		chip->dsp_spos_instance = NULL;
2991 	}
2992 	for (idx = 0; idx < CS46XX_DSP_MODULES; idx++)
2993 		free_module_desc(chip->modules[idx]);
2994 #else
2995 	vfree(chip->ba1);
2996 #endif
2997 
2998 #ifdef CONFIG_PM_SLEEP
2999 	kfree(chip->saved_regs);
3000 #endif
3001 
3002 	pci_disable_device(chip->pci);
3003 	kfree(chip);
3004 	return 0;
3005 }
3006 
3007 static int snd_cs46xx_dev_free(struct snd_device *device)
3008 {
3009 	struct snd_cs46xx *chip = device->device_data;
3010 	return snd_cs46xx_free(chip);
3011 }
3012 
3013 /*
3014  *  initialize chip
3015  */
3016 static int snd_cs46xx_chip_init(struct snd_cs46xx *chip)
3017 {
3018 	int timeout;
3019 
3020 	/*
3021 	 *  First, blast the clock control register to zero so that the PLL starts
3022          *  out in a known state, and blast the master serial port control register
3023          *  to zero so that the serial ports also start out in a known state.
3024          */
3025         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
3026         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
3027 
3028 	/*
3029 	 *  If we are in AC97 mode, then we must set the part to a host controlled
3030          *  AC-link.  Otherwise, we won't be able to bring up the link.
3031          */
3032 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3033 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 |
3034 			   SERACC_TWO_CODECS);	/* 2.00 dual codecs */
3035 	/* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
3036 #else
3037 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
3038 #endif
3039 
3040         /*
3041          *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
3042          *  spec) and then drive it high.  This is done for non AC97 modes since
3043          *  there might be logic external to the CS461x that uses the ARST# line
3044          *  for a reset.
3045          */
3046 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
3047 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3048 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
3049 #endif
3050 	udelay(50);
3051 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
3052 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3053 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
3054 #endif
3055 
3056 	/*
3057 	 *  The first thing we do here is to enable sync generation.  As soon
3058 	 *  as we start receiving bit clock, we'll start producing the SYNC
3059 	 *  signal.
3060 	 */
3061 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
3062 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3063 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
3064 #endif
3065 
3066 	/*
3067 	 *  Now wait for a short while to allow the AC97 part to start
3068 	 *  generating bit clock (so we don't try to start the PLL without an
3069 	 *  input clock).
3070 	 */
3071 	mdelay(10);
3072 
3073 	/*
3074 	 *  Set the serial port timing configuration, so that
3075 	 *  the clock control circuit gets its clock from the correct place.
3076 	 */
3077 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
3078 
3079 	/*
3080 	 *  Write the selected clock control setup to the hardware.  Do not turn on
3081 	 *  SWCE yet (if requested), so that the devices clocked by the output of
3082 	 *  PLL are not clocked until the PLL is stable.
3083 	 */
3084 	snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
3085 	snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
3086 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
3087 
3088 	/*
3089 	 *  Power up the PLL.
3090 	 */
3091 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
3092 
3093 	/*
3094          *  Wait until the PLL has stabilized.
3095 	 */
3096 	msleep(100);
3097 
3098 	/*
3099 	 *  Turn on clocking of the core so that we can setup the serial ports.
3100 	 */
3101 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
3102 
3103 	/*
3104 	 * Enable FIFO  Host Bypass
3105 	 */
3106 	snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
3107 
3108 	/*
3109 	 *  Fill the serial port FIFOs with silence.
3110 	 */
3111 	snd_cs46xx_clear_serial_FIFOs(chip);
3112 
3113 	/*
3114 	 *  Set the serial port FIFO pointer to the first sample in the FIFO.
3115 	 */
3116 	/* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
3117 
3118 	/*
3119 	 *  Write the serial port configuration to the part.  The master
3120 	 *  enable bit is not set until all other values have been written.
3121 	 */
3122 	snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
3123 	snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
3124 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
3125 
3126 
3127 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3128 	snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
3129 	snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
3130 	snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
3131 	snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
3132 	snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
3133 #endif
3134 
3135 	mdelay(5);
3136 
3137 
3138 	/*
3139 	 * Wait for the codec ready signal from the AC97 codec.
3140 	 */
3141 	timeout = 150;
3142 	while (timeout-- > 0) {
3143 		/*
3144 		 *  Read the AC97 status register to see if we've seen a CODEC READY
3145 		 *  signal from the AC97 codec.
3146 		 */
3147 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
3148 			goto ok1;
3149 		msleep(10);
3150 	}
3151 
3152 
3153 	dev_err(chip->card->dev,
3154 		"create - never read codec ready from AC'97\n");
3155 	dev_err(chip->card->dev,
3156 		"it is not probably bug, try to use CS4236 driver\n");
3157 	return -EIO;
3158  ok1:
3159 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3160 	{
3161 		int count;
3162 		for (count = 0; count < 150; count++) {
3163 			/* First, we want to wait for a short time. */
3164 			udelay(25);
3165 
3166 			if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
3167 				break;
3168 		}
3169 
3170 		/*
3171 		 *  Make sure CODEC is READY.
3172 		 */
3173 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
3174 			dev_dbg(chip->card->dev,
3175 				"never read card ready from secondary AC'97\n");
3176 	}
3177 #endif
3178 
3179 	/*
3180 	 *  Assert the vaid frame signal so that we can start sending commands
3181 	 *  to the AC97 codec.
3182 	 */
3183 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3184 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3185 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3186 #endif
3187 
3188 
3189 	/*
3190 	 *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
3191 	 *  the codec is pumping ADC data across the AC-link.
3192 	 */
3193 	timeout = 150;
3194 	while (timeout-- > 0) {
3195 		/*
3196 		 *  Read the input slot valid register and see if input slots 3 and
3197 		 *  4 are valid yet.
3198 		 */
3199 		if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
3200 			goto ok2;
3201 		msleep(10);
3202 	}
3203 
3204 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3205 	dev_err(chip->card->dev,
3206 		"create - never read ISV3 & ISV4 from AC'97\n");
3207 	return -EIO;
3208 #else
3209 	/* This may happen on a cold boot with a Terratec SiXPack 5.1.
3210 	   Reloading the driver may help, if there's other soundcards
3211 	   with the same problem I would like to know. (Benny) */
3212 
3213 	dev_err(chip->card->dev, "never read ISV3 & ISV4 from AC'97\n");
3214 	dev_err(chip->card->dev,
3215 		"Try reloading the ALSA driver, if you find something\n");
3216 	dev_err(chip->card->dev,
3217 		"broken or not working on your soundcard upon\n");
3218 	dev_err(chip->card->dev,
3219 		"this message please report to alsa-devel@alsa-project.org\n");
3220 
3221 	return -EIO;
3222 #endif
3223  ok2:
3224 
3225 	/*
3226 	 *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
3227 	 *  commense the transfer of digital audio data to the AC97 codec.
3228 	 */
3229 
3230 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
3231 
3232 
3233 	/*
3234 	 *  Power down the DAC and ADC.  We will power them up (if) when we need
3235 	 *  them.
3236 	 */
3237 	/* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
3238 
3239 	/*
3240 	 *  Turn off the Processor by turning off the software clock enable flag in
3241 	 *  the clock control register.
3242 	 */
3243 	/* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
3244 	/* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
3245 
3246 	return 0;
3247 }
3248 
3249 /*
3250  *  start and load DSP
3251  */
3252 
3253 static void cs46xx_enable_stream_irqs(struct snd_cs46xx *chip)
3254 {
3255 	unsigned int tmp;
3256 
3257 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
3258 
3259 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
3260 	tmp &= ~0x0000f03f;
3261 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt enable */
3262 
3263 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
3264 	tmp &= ~0x0000003f;
3265 	tmp |=  0x00000001;
3266 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt enable */
3267 }
3268 
3269 int snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
3270 {
3271 	unsigned int tmp;
3272 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3273 	int i;
3274 #endif
3275 	int err;
3276 
3277 	/*
3278 	 *  Reset the processor.
3279 	 */
3280 	snd_cs46xx_reset(chip);
3281 	/*
3282 	 *  Download the image to the processor.
3283 	 */
3284 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3285 	for (i = 0; i < CS46XX_DSP_MODULES; i++) {
3286 		err = load_firmware(chip, &chip->modules[i], module_names[i]);
3287 		if (err < 0) {
3288 			dev_err(chip->card->dev, "firmware load error [%s]\n",
3289 				   module_names[i]);
3290 			return err;
3291 		}
3292 		err = cs46xx_dsp_load_module(chip, chip->modules[i]);
3293 		if (err < 0) {
3294 			dev_err(chip->card->dev, "image download error [%s]\n",
3295 				   module_names[i]);
3296 			return err;
3297 		}
3298 	}
3299 
3300 	if (cs46xx_dsp_scb_and_task_init(chip) < 0)
3301 		return -EIO;
3302 #else
3303 	err = load_firmware(chip);
3304 	if (err < 0)
3305 		return err;
3306 
3307 	/* old image */
3308 	err = snd_cs46xx_download_image(chip);
3309 	if (err < 0) {
3310 		dev_err(chip->card->dev, "image download error\n");
3311 		return err;
3312 	}
3313 
3314 	/*
3315          *  Stop playback DMA.
3316 	 */
3317 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
3318 	chip->play_ctl = tmp & 0xffff0000;
3319 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
3320 #endif
3321 
3322 	/*
3323          *  Stop capture DMA.
3324 	 */
3325 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3326 	chip->capt.ctl = tmp & 0x0000ffff;
3327 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3328 
3329 	mdelay(5);
3330 
3331 	snd_cs46xx_set_play_sample_rate(chip, 8000);
3332 	snd_cs46xx_set_capture_sample_rate(chip, 8000);
3333 
3334 	snd_cs46xx_proc_start(chip);
3335 
3336 	cs46xx_enable_stream_irqs(chip);
3337 
3338 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3339 	/* set the attenuation to 0dB */
3340 	snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
3341 	snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
3342 #endif
3343 
3344 	return 0;
3345 }
3346 
3347 
3348 /*
3349  *	AMP control - null AMP
3350  */
3351 
3352 static void amp_none(struct snd_cs46xx *chip, int change)
3353 {
3354 }
3355 
3356 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3357 static int voyetra_setup_eapd_slot(struct snd_cs46xx *chip)
3358 {
3359 
3360 	u32 idx, valid_slots,tmp,powerdown = 0;
3361 	u16 modem_power,pin_config,logic_type;
3362 
3363 	dev_dbg(chip->card->dev, "cs46xx_setup_eapd_slot()+\n");
3364 
3365 	/*
3366 	 *  See if the devices are powered down.  If so, we must power them up first
3367 	 *  or they will not respond.
3368 	 */
3369 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
3370 
3371 	if (!(tmp & CLKCR1_SWCE)) {
3372 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
3373 		powerdown = 1;
3374 	}
3375 
3376 	/*
3377 	 * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
3378 	 * stuff.
3379 	 */
3380 	if(chip->nr_ac97_codecs != 2) {
3381 		dev_err(chip->card->dev,
3382 			"cs46xx_setup_eapd_slot() - no secondary codec configured\n");
3383 		return -EINVAL;
3384 	}
3385 
3386 	modem_power = snd_cs46xx_codec_read (chip,
3387 					     AC97_EXTENDED_MSTATUS,
3388 					     CS46XX_SECONDARY_CODEC_INDEX);
3389 	modem_power &=0xFEFF;
3390 
3391 	snd_cs46xx_codec_write(chip,
3392 			       AC97_EXTENDED_MSTATUS, modem_power,
3393 			       CS46XX_SECONDARY_CODEC_INDEX);
3394 
3395 	/*
3396 	 * Set GPIO pin's 7 and 8 so that they are configured for output.
3397 	 */
3398 	pin_config = snd_cs46xx_codec_read (chip,
3399 					    AC97_GPIO_CFG,
3400 					    CS46XX_SECONDARY_CODEC_INDEX);
3401 	pin_config &=0x27F;
3402 
3403 	snd_cs46xx_codec_write(chip,
3404 			       AC97_GPIO_CFG, pin_config,
3405 			       CS46XX_SECONDARY_CODEC_INDEX);
3406 
3407 	/*
3408 	 * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
3409 	 */
3410 
3411 	logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
3412 					   CS46XX_SECONDARY_CODEC_INDEX);
3413 	logic_type &=0x27F;
3414 
3415 	snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
3416 				CS46XX_SECONDARY_CODEC_INDEX);
3417 
3418 	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
3419 	valid_slots |= 0x200;
3420 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
3421 
3422 	if ( cs46xx_wait_for_fifo(chip,1) ) {
3423 		dev_dbg(chip->card->dev, "FIFO is busy\n");
3424 
3425 	  return -EINVAL;
3426 	}
3427 
3428 	/*
3429 	 * Fill slots 12 with the correct value for the GPIO pins.
3430 	 */
3431 	for(idx = 0x90; idx <= 0x9F; idx++) {
3432 		/*
3433 		 * Initialize the fifo so that bits 7 and 8 are on.
3434 		 *
3435 		 * Remember that the GPIO pins in bonzo are shifted by 4 bits to
3436 		 * the left.  0x1800 corresponds to bits 7 and 8.
3437 		 */
3438 		snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
3439 
3440 		/*
3441 		 * Wait for command to complete
3442 		 */
3443 		if ( cs46xx_wait_for_fifo(chip,200) ) {
3444 			dev_dbg(chip->card->dev,
3445 				"failed waiting for FIFO at addr (%02X)\n",
3446 				idx);
3447 
3448 			return -EINVAL;
3449 		}
3450 
3451 		/*
3452 		 * Write the serial port FIFO index.
3453 		 */
3454 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
3455 
3456 		/*
3457 		 * Tell the serial port to load the new value into the FIFO location.
3458 		 */
3459 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
3460 	}
3461 
3462 	/* wait for last command to complete */
3463 	cs46xx_wait_for_fifo(chip,200);
3464 
3465 	/*
3466 	 *  Now, if we powered up the devices, then power them back down again.
3467 	 *  This is kinda ugly, but should never happen.
3468 	 */
3469 	if (powerdown)
3470 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
3471 
3472 	return 0;
3473 }
3474 #endif
3475 
3476 /*
3477  *	Crystal EAPD mode
3478  */
3479 
3480 static void amp_voyetra(struct snd_cs46xx *chip, int change)
3481 {
3482 	/* Manage the EAPD bit on the Crystal 4297
3483 	   and the Analog AD1885 */
3484 
3485 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3486 	int old = chip->amplifier;
3487 #endif
3488 	int oval, val;
3489 
3490 	chip->amplifier += change;
3491 	oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
3492 				     CS46XX_PRIMARY_CODEC_INDEX);
3493 	val = oval;
3494 	if (chip->amplifier) {
3495 		/* Turn the EAPD amp on */
3496 		val |= 0x8000;
3497 	} else {
3498 		/* Turn the EAPD amp off */
3499 		val &= ~0x8000;
3500 	}
3501 	if (val != oval) {
3502 		snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
3503 				       CS46XX_PRIMARY_CODEC_INDEX);
3504 		if (chip->eapd_switch)
3505 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3506 				       &chip->eapd_switch->id);
3507 	}
3508 
3509 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3510 	if (chip->amplifier && !old) {
3511 		voyetra_setup_eapd_slot(chip);
3512 	}
3513 #endif
3514 }
3515 
3516 static void hercules_init(struct snd_cs46xx *chip)
3517 {
3518 	/* default: AMP off, and SPDIF input optical */
3519 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3520 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3521 }
3522 
3523 
3524 /*
3525  *	Game Theatre XP card - EGPIO[2] is used to enable the external amp.
3526  */
3527 static void amp_hercules(struct snd_cs46xx *chip, int change)
3528 {
3529 	int old = chip->amplifier;
3530 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
3531 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
3532 
3533 	chip->amplifier += change;
3534 	if (chip->amplifier && !old) {
3535 		dev_dbg(chip->card->dev, "Hercules amplifier ON\n");
3536 
3537 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
3538 				   EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
3539 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
3540 				   EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
3541 	} else if (old && !chip->amplifier) {
3542 		dev_dbg(chip->card->dev, "Hercules amplifier OFF\n");
3543 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
3544 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
3545 	}
3546 }
3547 
3548 static void voyetra_mixer_init (struct snd_cs46xx *chip)
3549 {
3550 	dev_dbg(chip->card->dev, "initializing Voyetra mixer\n");
3551 
3552 	/* Enable SPDIF out */
3553 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3554 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3555 }
3556 
3557 static void hercules_mixer_init (struct snd_cs46xx *chip)
3558 {
3559 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3560 	unsigned int idx;
3561 	int err;
3562 	struct snd_card *card = chip->card;
3563 #endif
3564 
3565 	/* set EGPIO to default */
3566 	hercules_init(chip);
3567 
3568 	dev_dbg(chip->card->dev, "initializing Hercules mixer\n");
3569 
3570 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3571 	if (chip->in_suspend)
3572 		return;
3573 
3574 	for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
3575 		struct snd_kcontrol *kctl;
3576 
3577 		kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
3578 		if ((err = snd_ctl_add(card, kctl)) < 0) {
3579 			dev_err(card->dev,
3580 				"failed to initialize Hercules mixer (%d)\n",
3581 				err);
3582 			break;
3583 		}
3584 	}
3585 #endif
3586 }
3587 
3588 
3589 #if 0
3590 /*
3591  *	Untested
3592  */
3593 
3594 static void amp_voyetra_4294(struct snd_cs46xx *chip, int change)
3595 {
3596 	chip->amplifier += change;
3597 
3598 	if (chip->amplifier) {
3599 		/* Switch the GPIO pins 7 and 8 to open drain */
3600 		snd_cs46xx_codec_write(chip, 0x4C,
3601 				       snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
3602 		snd_cs46xx_codec_write(chip, 0x4E,
3603 				       snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
3604 		/* Now wake the AMP (this might be backwards) */
3605 		snd_cs46xx_codec_write(chip, 0x54,
3606 				       snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
3607 	} else {
3608 		snd_cs46xx_codec_write(chip, 0x54,
3609 				       snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
3610 	}
3611 }
3612 #endif
3613 
3614 
3615 /*
3616  *	Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
3617  *	whenever we need to beat on the chip.
3618  *
3619  *	The original idea and code for this hack comes from David Kaiser at
3620  *	Linuxcare. Perhaps one day Crystal will document their chips well
3621  *	enough to make them useful.
3622  */
3623 
3624 static void clkrun_hack(struct snd_cs46xx *chip, int change)
3625 {
3626 	u16 control, nval;
3627 
3628 	if (!chip->acpi_port)
3629 		return;
3630 
3631 	chip->amplifier += change;
3632 
3633 	/* Read ACPI port */
3634 	nval = control = inw(chip->acpi_port + 0x10);
3635 
3636 	/* Flip CLKRUN off while running */
3637 	if (! chip->amplifier)
3638 		nval |= 0x2000;
3639 	else
3640 		nval &= ~0x2000;
3641 	if (nval != control)
3642 		outw(nval, chip->acpi_port + 0x10);
3643 }
3644 
3645 
3646 /*
3647  * detect intel piix4
3648  */
3649 static void clkrun_init(struct snd_cs46xx *chip)
3650 {
3651 	struct pci_dev *pdev;
3652 	u8 pp;
3653 
3654 	chip->acpi_port = 0;
3655 
3656 	pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
3657 		PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3658 	if (pdev == NULL)
3659 		return;		/* Not a thinkpad thats for sure */
3660 
3661 	/* Find the control port */
3662 	pci_read_config_byte(pdev, 0x41, &pp);
3663 	chip->acpi_port = pp << 8;
3664 	pci_dev_put(pdev);
3665 }
3666 
3667 
3668 /*
3669  * Card subid table
3670  */
3671 
3672 struct cs_card_type
3673 {
3674 	u16 vendor;
3675 	u16 id;
3676 	char *name;
3677 	void (*init)(struct snd_cs46xx *);
3678 	void (*amp)(struct snd_cs46xx *, int);
3679 	void (*active)(struct snd_cs46xx *, int);
3680 	void (*mixer_init)(struct snd_cs46xx *);
3681 };
3682 
3683 static struct cs_card_type cards[] = {
3684 	{
3685 		.vendor = 0x1489,
3686 		.id = 0x7001,
3687 		.name = "Genius Soundmaker 128 value",
3688 		/* nothing special */
3689 	},
3690 	{
3691 		.vendor = 0x5053,
3692 		.id = 0x3357,
3693 		.name = "Voyetra",
3694 		.amp = amp_voyetra,
3695 		.mixer_init = voyetra_mixer_init,
3696 	},
3697 	{
3698 		.vendor = 0x1071,
3699 		.id = 0x6003,
3700 		.name = "Mitac MI6020/21",
3701 		.amp = amp_voyetra,
3702 	},
3703 	/* Hercules Game Theatre XP */
3704 	{
3705 		.vendor = 0x14af, /* Guillemot Corporation */
3706 		.id = 0x0050,
3707 		.name = "Hercules Game Theatre XP",
3708 		.amp = amp_hercules,
3709 		.mixer_init = hercules_mixer_init,
3710 	},
3711 	{
3712 		.vendor = 0x1681,
3713 		.id = 0x0050,
3714 		.name = "Hercules Game Theatre XP",
3715 		.amp = amp_hercules,
3716 		.mixer_init = hercules_mixer_init,
3717 	},
3718 	{
3719 		.vendor = 0x1681,
3720 		.id = 0x0051,
3721 		.name = "Hercules Game Theatre XP",
3722 		.amp = amp_hercules,
3723 		.mixer_init = hercules_mixer_init,
3724 
3725 	},
3726 	{
3727 		.vendor = 0x1681,
3728 		.id = 0x0052,
3729 		.name = "Hercules Game Theatre XP",
3730 		.amp = amp_hercules,
3731 		.mixer_init = hercules_mixer_init,
3732 	},
3733 	{
3734 		.vendor = 0x1681,
3735 		.id = 0x0053,
3736 		.name = "Hercules Game Theatre XP",
3737 		.amp = amp_hercules,
3738 		.mixer_init = hercules_mixer_init,
3739 	},
3740 	{
3741 		.vendor = 0x1681,
3742 		.id = 0x0054,
3743 		.name = "Hercules Game Theatre XP",
3744 		.amp = amp_hercules,
3745 		.mixer_init = hercules_mixer_init,
3746 	},
3747 	/* Herculess Fortissimo */
3748 	{
3749 		.vendor = 0x1681,
3750 		.id = 0xa010,
3751 		.name = "Hercules Gamesurround Fortissimo II",
3752 	},
3753 	{
3754 		.vendor = 0x1681,
3755 		.id = 0xa011,
3756 		.name = "Hercules Gamesurround Fortissimo III 7.1",
3757 	},
3758 	/* Teratec */
3759 	{
3760 		.vendor = 0x153b,
3761 		.id = 0x112e,
3762 		.name = "Terratec DMX XFire 1024",
3763 	},
3764 	{
3765 		.vendor = 0x153b,
3766 		.id = 0x1136,
3767 		.name = "Terratec SiXPack 5.1",
3768 	},
3769 	/* Not sure if the 570 needs the clkrun hack */
3770 	{
3771 		.vendor = PCI_VENDOR_ID_IBM,
3772 		.id = 0x0132,
3773 		.name = "Thinkpad 570",
3774 		.init = clkrun_init,
3775 		.active = clkrun_hack,
3776 	},
3777 	{
3778 		.vendor = PCI_VENDOR_ID_IBM,
3779 		.id = 0x0153,
3780 		.name = "Thinkpad 600X/A20/T20",
3781 		.init = clkrun_init,
3782 		.active = clkrun_hack,
3783 	},
3784 	{
3785 		.vendor = PCI_VENDOR_ID_IBM,
3786 		.id = 0x1010,
3787 		.name = "Thinkpad 600E (unsupported)",
3788 	},
3789 	{} /* terminator */
3790 };
3791 
3792 
3793 /*
3794  * APM support
3795  */
3796 #ifdef CONFIG_PM_SLEEP
3797 static unsigned int saved_regs[] = {
3798 	BA0_ACOSV,
3799 	/*BA0_ASER_FADDR,*/
3800 	BA0_ASER_MASTER,
3801 	BA1_PVOL,
3802 	BA1_CVOL,
3803 };
3804 
3805 static int snd_cs46xx_suspend(struct device *dev)
3806 {
3807 	struct pci_dev *pci = to_pci_dev(dev);
3808 	struct snd_card *card = dev_get_drvdata(dev);
3809 	struct snd_cs46xx *chip = card->private_data;
3810 	int i, amp_saved;
3811 
3812 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3813 	chip->in_suspend = 1;
3814 	snd_pcm_suspend_all(chip->pcm);
3815 	// chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
3816 	// chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
3817 
3818 	snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3819 	snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3820 
3821 	/* save some registers */
3822 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3823 		chip->saved_regs[i] = snd_cs46xx_peekBA0(chip, saved_regs[i]);
3824 
3825 	amp_saved = chip->amplifier;
3826 	/* turn off amp */
3827 	chip->amplifier_ctrl(chip, -chip->amplifier);
3828 	snd_cs46xx_hw_stop(chip);
3829 	/* disable CLKRUN */
3830 	chip->active_ctrl(chip, -chip->amplifier);
3831 	chip->amplifier = amp_saved; /* restore the status */
3832 
3833 	pci_disable_device(pci);
3834 	pci_save_state(pci);
3835 	pci_set_power_state(pci, PCI_D3hot);
3836 	return 0;
3837 }
3838 
3839 static int snd_cs46xx_resume(struct device *dev)
3840 {
3841 	struct pci_dev *pci = to_pci_dev(dev);
3842 	struct snd_card *card = dev_get_drvdata(dev);
3843 	struct snd_cs46xx *chip = card->private_data;
3844 	int amp_saved;
3845 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3846 	int i;
3847 #endif
3848 	unsigned int tmp;
3849 
3850 	pci_set_power_state(pci, PCI_D0);
3851 	pci_restore_state(pci);
3852 	if (pci_enable_device(pci) < 0) {
3853 		dev_err(dev, "pci_enable_device failed, disabling device\n");
3854 		snd_card_disconnect(card);
3855 		return -EIO;
3856 	}
3857 	pci_set_master(pci);
3858 
3859 	amp_saved = chip->amplifier;
3860 	chip->amplifier = 0;
3861 	chip->active_ctrl(chip, 1); /* force to on */
3862 
3863 	snd_cs46xx_chip_init(chip);
3864 
3865 	snd_cs46xx_reset(chip);
3866 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3867 	cs46xx_dsp_resume(chip);
3868 	/* restore some registers */
3869 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3870 		snd_cs46xx_pokeBA0(chip, saved_regs[i], chip->saved_regs[i]);
3871 #else
3872 	snd_cs46xx_download_image(chip);
3873 #endif
3874 
3875 #if 0
3876 	snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE,
3877 			       chip->ac97_general_purpose);
3878 	snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL,
3879 			       chip->ac97_powerdown);
3880 	mdelay(10);
3881 	snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
3882 			       chip->ac97_powerdown);
3883 	mdelay(5);
3884 #endif
3885 
3886 	snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3887 	snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3888 
3889 	/*
3890          *  Stop capture DMA.
3891 	 */
3892 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3893 	chip->capt.ctl = tmp & 0x0000ffff;
3894 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3895 
3896 	mdelay(5);
3897 
3898 	/* reset playback/capture */
3899 	snd_cs46xx_set_play_sample_rate(chip, 8000);
3900 	snd_cs46xx_set_capture_sample_rate(chip, 8000);
3901 	snd_cs46xx_proc_start(chip);
3902 
3903 	cs46xx_enable_stream_irqs(chip);
3904 
3905 	if (amp_saved)
3906 		chip->amplifier_ctrl(chip, 1); /* turn amp on */
3907 	else
3908 		chip->active_ctrl(chip, -1); /* disable CLKRUN */
3909 	chip->amplifier = amp_saved;
3910 	chip->in_suspend = 0;
3911 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3912 	return 0;
3913 }
3914 
3915 SIMPLE_DEV_PM_OPS(snd_cs46xx_pm, snd_cs46xx_suspend, snd_cs46xx_resume);
3916 #endif /* CONFIG_PM_SLEEP */
3917 
3918 
3919 /*
3920  */
3921 
3922 int snd_cs46xx_create(struct snd_card *card,
3923 		      struct pci_dev *pci,
3924 		      int external_amp, int thinkpad,
3925 		      struct snd_cs46xx **rchip)
3926 {
3927 	struct snd_cs46xx *chip;
3928 	int err, idx;
3929 	struct snd_cs46xx_region *region;
3930 	struct cs_card_type *cp;
3931 	u16 ss_card, ss_vendor;
3932 	static struct snd_device_ops ops = {
3933 		.dev_free =	snd_cs46xx_dev_free,
3934 	};
3935 
3936 	*rchip = NULL;
3937 
3938 	/* enable PCI device */
3939 	if ((err = pci_enable_device(pci)) < 0)
3940 		return err;
3941 
3942 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3943 	if (chip == NULL) {
3944 		pci_disable_device(pci);
3945 		return -ENOMEM;
3946 	}
3947 	spin_lock_init(&chip->reg_lock);
3948 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3949 	mutex_init(&chip->spos_mutex);
3950 #endif
3951 	chip->card = card;
3952 	chip->pci = pci;
3953 	chip->irq = -1;
3954 	chip->ba0_addr = pci_resource_start(pci, 0);
3955 	chip->ba1_addr = pci_resource_start(pci, 1);
3956 	if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
3957 	    chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
3958 		dev_err(chip->card->dev,
3959 			"wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n",
3960 			   chip->ba0_addr, chip->ba1_addr);
3961 	    	snd_cs46xx_free(chip);
3962 	    	return -ENOMEM;
3963 	}
3964 
3965 	region = &chip->region.name.ba0;
3966 	strcpy(region->name, "CS46xx_BA0");
3967 	region->base = chip->ba0_addr;
3968 	region->size = CS46XX_BA0_SIZE;
3969 
3970 	region = &chip->region.name.data0;
3971 	strcpy(region->name, "CS46xx_BA1_data0");
3972 	region->base = chip->ba1_addr + BA1_SP_DMEM0;
3973 	region->size = CS46XX_BA1_DATA0_SIZE;
3974 
3975 	region = &chip->region.name.data1;
3976 	strcpy(region->name, "CS46xx_BA1_data1");
3977 	region->base = chip->ba1_addr + BA1_SP_DMEM1;
3978 	region->size = CS46XX_BA1_DATA1_SIZE;
3979 
3980 	region = &chip->region.name.pmem;
3981 	strcpy(region->name, "CS46xx_BA1_pmem");
3982 	region->base = chip->ba1_addr + BA1_SP_PMEM;
3983 	region->size = CS46XX_BA1_PRG_SIZE;
3984 
3985 	region = &chip->region.name.reg;
3986 	strcpy(region->name, "CS46xx_BA1_reg");
3987 	region->base = chip->ba1_addr + BA1_SP_REG;
3988 	region->size = CS46XX_BA1_REG_SIZE;
3989 
3990 	/* set up amp and clkrun hack */
3991 	pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
3992 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
3993 
3994 	for (cp = &cards[0]; cp->name; cp++) {
3995 		if (cp->vendor == ss_vendor && cp->id == ss_card) {
3996 			dev_dbg(chip->card->dev, "hack for %s enabled\n",
3997 				cp->name);
3998 
3999 			chip->amplifier_ctrl = cp->amp;
4000 			chip->active_ctrl = cp->active;
4001 			chip->mixer_init = cp->mixer_init;
4002 
4003 			if (cp->init)
4004 				cp->init(chip);
4005 			break;
4006 		}
4007 	}
4008 
4009 	if (external_amp) {
4010 		dev_info(chip->card->dev,
4011 			 "Crystal EAPD support forced on.\n");
4012 		chip->amplifier_ctrl = amp_voyetra;
4013 	}
4014 
4015 	if (thinkpad) {
4016 		dev_info(chip->card->dev,
4017 			 "Activating CLKRUN hack for Thinkpad.\n");
4018 		chip->active_ctrl = clkrun_hack;
4019 		clkrun_init(chip);
4020 	}
4021 
4022 	if (chip->amplifier_ctrl == NULL)
4023 		chip->amplifier_ctrl = amp_none;
4024 	if (chip->active_ctrl == NULL)
4025 		chip->active_ctrl = amp_none;
4026 
4027 	chip->active_ctrl(chip, 1); /* enable CLKRUN */
4028 
4029 	pci_set_master(pci);
4030 
4031 	for (idx = 0; idx < 5; idx++) {
4032 		region = &chip->region.idx[idx];
4033 		if ((region->resource = request_mem_region(region->base, region->size,
4034 							   region->name)) == NULL) {
4035 			dev_err(chip->card->dev,
4036 				"unable to request memory region 0x%lx-0x%lx\n",
4037 				   region->base, region->base + region->size - 1);
4038 			snd_cs46xx_free(chip);
4039 			return -EBUSY;
4040 		}
4041 		region->remap_addr = ioremap_nocache(region->base, region->size);
4042 		if (region->remap_addr == NULL) {
4043 			dev_err(chip->card->dev,
4044 				"%s ioremap problem\n", region->name);
4045 			snd_cs46xx_free(chip);
4046 			return -ENOMEM;
4047 		}
4048 	}
4049 
4050 	if (request_irq(pci->irq, snd_cs46xx_interrupt, IRQF_SHARED,
4051 			KBUILD_MODNAME, chip)) {
4052 		dev_err(chip->card->dev, "unable to grab IRQ %d\n", pci->irq);
4053 		snd_cs46xx_free(chip);
4054 		return -EBUSY;
4055 	}
4056 	chip->irq = pci->irq;
4057 
4058 #ifdef CONFIG_SND_CS46XX_NEW_DSP
4059 	chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
4060 	if (chip->dsp_spos_instance == NULL) {
4061 		snd_cs46xx_free(chip);
4062 		return -ENOMEM;
4063 	}
4064 #endif
4065 
4066 	err = snd_cs46xx_chip_init(chip);
4067 	if (err < 0) {
4068 		snd_cs46xx_free(chip);
4069 		return err;
4070 	}
4071 
4072 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
4073 		snd_cs46xx_free(chip);
4074 		return err;
4075 	}
4076 
4077 	snd_cs46xx_proc_init(card, chip);
4078 
4079 #ifdef CONFIG_PM_SLEEP
4080 	chip->saved_regs = kmalloc(sizeof(*chip->saved_regs) *
4081 				   ARRAY_SIZE(saved_regs), GFP_KERNEL);
4082 	if (!chip->saved_regs) {
4083 		snd_cs46xx_free(chip);
4084 		return -ENOMEM;
4085 	}
4086 #endif
4087 
4088 	chip->active_ctrl(chip, -1); /* disable CLKRUN */
4089 
4090 	*rchip = chip;
4091 	return 0;
4092 }
4093