xref: /openbmc/linux/sound/pci/cs46xx/cs46xx_lib.c (revision d0b73b48)
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 
58 
59 #include <sound/core.h>
60 #include <sound/control.h>
61 #include <sound/info.h>
62 #include <sound/pcm.h>
63 #include <sound/pcm_params.h>
64 #include "cs46xx.h"
65 
66 #include <asm/io.h>
67 
68 #include "cs46xx_lib.h"
69 #include "dsp_spos.h"
70 
71 static void amp_voyetra(struct snd_cs46xx *chip, int change);
72 
73 #ifdef CONFIG_SND_CS46XX_NEW_DSP
74 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
75 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
76 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
77 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
78 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
79 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
80 #endif
81 
82 static struct snd_pcm_ops snd_cs46xx_playback_ops;
83 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
84 static struct snd_pcm_ops snd_cs46xx_capture_ops;
85 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
86 
87 static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
88 					    unsigned short reg,
89 					    int codec_index)
90 {
91 	int count;
92 	unsigned short result,tmp;
93 	u32 offset = 0;
94 
95 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
96 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
97 		return 0xffff;
98 
99 	chip->active_ctrl(chip, 1);
100 
101 	if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
102 		offset = CS46XX_SECONDARY_CODEC_OFFSET;
103 
104 	/*
105 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
106 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
107 	 *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
108 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
109 	 *  5. if DCV not cleared, break and return error
110 	 *  6. Read ACSTS = Status Register = 464h, check VSTS bit
111 	 */
112 
113 	snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
114 
115 	tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
116 	if ((tmp & ACCTL_VFRM) == 0) {
117 		snd_printk(KERN_WARNING  "cs46xx: ACCTL_VFRM not set 0x%x\n",tmp);
118 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
119 		msleep(50);
120 		tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
121 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
122 
123 	}
124 
125 	/*
126 	 *  Setup the AC97 control registers on the CS461x to send the
127 	 *  appropriate command to the AC97 to perform the read.
128 	 *  ACCAD = Command Address Register = 46Ch
129 	 *  ACCDA = Command Data Register = 470h
130 	 *  ACCTL = Control Register = 460h
131 	 *  set DCV - will clear when process completed
132 	 *  set CRW - Read command
133 	 *  set VFRM - valid frame enabled
134 	 *  set ESYN - ASYNC generation enabled
135 	 *  set RSTN - ARST# inactive, AC97 codec not reset
136 	 */
137 
138 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
139 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
140 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
141 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW |
142 				   ACCTL_VFRM | ACCTL_ESYN |
143 				   ACCTL_RSTN);
144 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
145 				   ACCTL_VFRM | ACCTL_ESYN |
146 				   ACCTL_RSTN);
147 	} else {
148 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
149 				   ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
150 				   ACCTL_RSTN);
151 	}
152 
153 	/*
154 	 *  Wait for the read to occur.
155 	 */
156 	for (count = 0; count < 1000; count++) {
157 		/*
158 		 *  First, we want to wait for a short time.
159 	 	 */
160 		udelay(10);
161 		/*
162 		 *  Now, check to see if the read has completed.
163 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
164 		 */
165 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
166 			goto ok1;
167 	}
168 
169 	snd_printk(KERN_ERR "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
170 	result = 0xffff;
171 	goto end;
172 
173  ok1:
174 	/*
175 	 *  Wait for the valid status bit to go active.
176 	 */
177 	for (count = 0; count < 100; count++) {
178 		/*
179 		 *  Read the AC97 status register.
180 		 *  ACSTS = Status Register = 464h
181 		 *  VSTS - Valid Status
182 		 */
183 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
184 			goto ok2;
185 		udelay(10);
186 	}
187 
188 	snd_printk(KERN_ERR "AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n", codec_index, reg);
189 	result = 0xffff;
190 	goto end;
191 
192  ok2:
193 	/*
194 	 *  Read the data returned from the AC97 register.
195 	 *  ACSDA = Status Data Register = 474h
196 	 */
197 #if 0
198 	printk(KERN_DEBUG "e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
199 			snd_cs46xx_peekBA0(chip, BA0_ACSDA),
200 			snd_cs46xx_peekBA0(chip, BA0_ACCAD));
201 #endif
202 
203 	//snd_cs46xx_peekBA0(chip, BA0_ACCAD);
204 	result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
205  end:
206 	chip->active_ctrl(chip, -1);
207 	return result;
208 }
209 
210 static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
211 					    unsigned short reg)
212 {
213 	struct snd_cs46xx *chip = ac97->private_data;
214 	unsigned short val;
215 	int codec_index = ac97->num;
216 
217 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
218 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
219 		return 0xffff;
220 
221 	val = snd_cs46xx_codec_read(chip, reg, codec_index);
222 
223 	return val;
224 }
225 
226 
227 static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
228 				   unsigned short reg,
229 				   unsigned short val,
230 				   int codec_index)
231 {
232 	int count;
233 
234 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
235 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
236 		return;
237 
238 	chip->active_ctrl(chip, 1);
239 
240 	/*
241 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
242 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
243 	 *  3. Write ACCTL = Control Register = 460h for initiating the write
244 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
245 	 *  5. if DCV not cleared, break and return error
246 	 */
247 
248 	/*
249 	 *  Setup the AC97 control registers on the CS461x to send the
250 	 *  appropriate command to the AC97 to perform the read.
251 	 *  ACCAD = Command Address Register = 46Ch
252 	 *  ACCDA = Command Data Register = 470h
253 	 *  ACCTL = Control Register = 460h
254 	 *  set DCV - will clear when process completed
255 	 *  reset CRW - Write command
256 	 *  set VFRM - valid frame enabled
257 	 *  set ESYN - ASYNC generation enabled
258 	 *  set RSTN - ARST# inactive, AC97 codec not reset
259          */
260 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
261 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
262 	snd_cs46xx_peekBA0(chip, BA0_ACCTL);
263 
264 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
265 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
266 				   ACCTL_ESYN | ACCTL_RSTN);
267 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
268 				   ACCTL_ESYN | ACCTL_RSTN);
269 	} else {
270 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
271 				   ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
272 	}
273 
274 	for (count = 0; count < 4000; count++) {
275 		/*
276 		 *  First, we want to wait for a short time.
277 		 */
278 		udelay(10);
279 		/*
280 		 *  Now, check to see if the write has completed.
281 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
282 		 */
283 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
284 			goto end;
285 		}
286 	}
287 	snd_printk(KERN_ERR "AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n", codec_index, reg, val);
288  end:
289 	chip->active_ctrl(chip, -1);
290 }
291 
292 static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
293 				   unsigned short reg,
294 				   unsigned short val)
295 {
296 	struct snd_cs46xx *chip = ac97->private_data;
297 	int codec_index = ac97->num;
298 
299 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
300 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
301 		return;
302 
303 	snd_cs46xx_codec_write(chip, reg, val, codec_index);
304 }
305 
306 
307 /*
308  *  Chip initialization
309  */
310 
311 int snd_cs46xx_download(struct snd_cs46xx *chip,
312 			u32 *src,
313                         unsigned long offset,
314                         unsigned long len)
315 {
316 	void __iomem *dst;
317 	unsigned int bank = offset >> 16;
318 	offset = offset & 0xffff;
319 
320 	if (snd_BUG_ON((offset & 3) || (len & 3)))
321 		return -EINVAL;
322 	dst = chip->region.idx[bank+1].remap_addr + offset;
323 	len /= sizeof(u32);
324 
325 	/* writel already converts 32-bit value to right endianess */
326 	while (len-- > 0) {
327 		writel(*src++, dst);
328 		dst += sizeof(u32);
329 	}
330 	return 0;
331 }
332 
333 #ifdef CONFIG_SND_CS46XX_NEW_DSP
334 
335 #include "imgs/cwc4630.h"
336 #include "imgs/cwcasync.h"
337 #include "imgs/cwcsnoop.h"
338 #include "imgs/cwcbinhack.h"
339 #include "imgs/cwcdma.h"
340 
341 int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
342                          unsigned long offset,
343                          unsigned long len)
344 {
345 	void __iomem *dst;
346 	unsigned int bank = offset >> 16;
347 	offset = offset & 0xffff;
348 
349 	if (snd_BUG_ON((offset & 3) || (len & 3)))
350 		return -EINVAL;
351 	dst = chip->region.idx[bank+1].remap_addr + offset;
352 	len /= sizeof(u32);
353 
354 	/* writel already converts 32-bit value to right endianess */
355 	while (len-- > 0) {
356 		writel(0, dst);
357 		dst += sizeof(u32);
358 	}
359 	return 0;
360 }
361 
362 #else /* old DSP image */
363 
364 #include "cs46xx_image.h"
365 
366 int snd_cs46xx_download_image(struct snd_cs46xx *chip)
367 {
368 	int idx, err;
369 	unsigned long offset = 0;
370 
371 	for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
372 		if ((err = snd_cs46xx_download(chip,
373 					       &BA1Struct.map[offset],
374 					       BA1Struct.memory[idx].offset,
375 					       BA1Struct.memory[idx].size)) < 0)
376 			return err;
377 		offset += BA1Struct.memory[idx].size >> 2;
378 	}
379 	return 0;
380 }
381 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
382 
383 /*
384  *  Chip reset
385  */
386 
387 static void snd_cs46xx_reset(struct snd_cs46xx *chip)
388 {
389 	int idx;
390 
391 	/*
392 	 *  Write the reset bit of the SP control register.
393 	 */
394 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
395 
396 	/*
397 	 *  Write the control register.
398 	 */
399 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
400 
401 	/*
402 	 *  Clear the trap registers.
403 	 */
404 	for (idx = 0; idx < 8; idx++) {
405 		snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
406 		snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
407 	}
408 	snd_cs46xx_poke(chip, BA1_DREG, 0);
409 
410 	/*
411 	 *  Set the frame timer to reflect the number of cycles per frame.
412 	 */
413 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
414 }
415 
416 static int cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout)
417 {
418 	u32 i, status = 0;
419 	/*
420 	 * Make sure the previous FIFO write operation has completed.
421 	 */
422 	for(i = 0; i < 50; i++){
423 		status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
424 
425 		if( !(status & SERBST_WBSY) )
426 			break;
427 
428 		mdelay(retry_timeout);
429 	}
430 
431 	if(status & SERBST_WBSY) {
432 		snd_printk(KERN_ERR "cs46xx: failure waiting for "
433 			   "FIFO command to complete\n");
434 		return -EINVAL;
435 	}
436 
437 	return 0;
438 }
439 
440 static void snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx *chip)
441 {
442 	int idx, powerdown = 0;
443 	unsigned int tmp;
444 
445 	/*
446 	 *  See if the devices are powered down.  If so, we must power them up first
447 	 *  or they will not respond.
448 	 */
449 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
450 	if (!(tmp & CLKCR1_SWCE)) {
451 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
452 		powerdown = 1;
453 	}
454 
455 	/*
456 	 *  We want to clear out the serial port FIFOs so we don't end up playing
457 	 *  whatever random garbage happens to be in them.  We fill the sample FIFOS
458 	 *  with zero (silence).
459 	 */
460 	snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
461 
462 	/*
463 	 *  Fill all 256 sample FIFO locations.
464 	 */
465 	for (idx = 0; idx < 0xFF; idx++) {
466 		/*
467 		 *  Make sure the previous FIFO write operation has completed.
468 		 */
469 		if (cs46xx_wait_for_fifo(chip,1)) {
470 			snd_printdd ("failed waiting for FIFO at addr (%02X)\n",idx);
471 
472 			if (powerdown)
473 				snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
474 
475 			break;
476 		}
477 		/*
478 		 *  Write the serial port FIFO index.
479 		 */
480 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
481 		/*
482 		 *  Tell the serial port to load the new value into the FIFO location.
483 		 */
484 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
485 	}
486 	/*
487 	 *  Now, if we powered up the devices, then power them back down again.
488 	 *  This is kinda ugly, but should never happen.
489 	 */
490 	if (powerdown)
491 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
492 }
493 
494 static void snd_cs46xx_proc_start(struct snd_cs46xx *chip)
495 {
496 	int cnt;
497 
498 	/*
499 	 *  Set the frame timer to reflect the number of cycles per frame.
500 	 */
501 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
502 	/*
503 	 *  Turn on the run, run at frame, and DMA enable bits in the local copy of
504 	 *  the SP control register.
505 	 */
506 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
507 	/*
508 	 *  Wait until the run at frame bit resets itself in the SP control
509 	 *  register.
510 	 */
511 	for (cnt = 0; cnt < 25; cnt++) {
512 		udelay(50);
513 		if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
514 			break;
515 	}
516 
517 	if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
518 		snd_printk(KERN_ERR "SPCR_RUNFR never reset\n");
519 }
520 
521 static void snd_cs46xx_proc_stop(struct snd_cs46xx *chip)
522 {
523 	/*
524 	 *  Turn off the run, run at frame, and DMA enable bits in the local copy of
525 	 *  the SP control register.
526 	 */
527 	snd_cs46xx_poke(chip, BA1_SPCR, 0);
528 }
529 
530 /*
531  *  Sample rate routines
532  */
533 
534 #define GOF_PER_SEC 200
535 
536 static void snd_cs46xx_set_play_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
537 {
538 	unsigned long flags;
539 	unsigned int tmp1, tmp2;
540 	unsigned int phiIncr;
541 	unsigned int correctionPerGOF, correctionPerSec;
542 
543 	/*
544 	 *  Compute the values used to drive the actual sample rate conversion.
545 	 *  The following formulas are being computed, using inline assembly
546 	 *  since we need to use 64 bit arithmetic to compute the values:
547 	 *
548 	 *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
549 	 *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
550          *                                   GOF_PER_SEC)
551          *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
552          *                       GOF_PER_SEC * correctionPerGOF
553 	 *
554 	 *  i.e.
555 	 *
556 	 *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
557 	 *  correctionPerGOF:correctionPerSec =
558 	 *      dividend:remainder(ulOther / GOF_PER_SEC)
559 	 */
560 	tmp1 = rate << 16;
561 	phiIncr = tmp1 / 48000;
562 	tmp1 -= phiIncr * 48000;
563 	tmp1 <<= 10;
564 	phiIncr <<= 10;
565 	tmp2 = tmp1 / 48000;
566 	phiIncr += tmp2;
567 	tmp1 -= tmp2 * 48000;
568 	correctionPerGOF = tmp1 / GOF_PER_SEC;
569 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
570 	correctionPerSec = tmp1;
571 
572 	/*
573 	 *  Fill in the SampleRateConverter control block.
574 	 */
575 	spin_lock_irqsave(&chip->reg_lock, flags);
576 	snd_cs46xx_poke(chip, BA1_PSRC,
577 	  ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
578 	snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
579 	spin_unlock_irqrestore(&chip->reg_lock, flags);
580 }
581 
582 static void snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
583 {
584 	unsigned long flags;
585 	unsigned int phiIncr, coeffIncr, tmp1, tmp2;
586 	unsigned int correctionPerGOF, correctionPerSec, initialDelay;
587 	unsigned int frameGroupLength, cnt;
588 
589 	/*
590 	 *  We can only decimate by up to a factor of 1/9th the hardware rate.
591 	 *  Correct the value if an attempt is made to stray outside that limit.
592 	 */
593 	if ((rate * 9) < 48000)
594 		rate = 48000 / 9;
595 
596 	/*
597 	 *  We can not capture at at rate greater than the Input Rate (48000).
598 	 *  Return an error if an attempt is made to stray outside that limit.
599 	 */
600 	if (rate > 48000)
601 		rate = 48000;
602 
603 	/*
604 	 *  Compute the values used to drive the actual sample rate conversion.
605 	 *  The following formulas are being computed, using inline assembly
606 	 *  since we need to use 64 bit arithmetic to compute the values:
607 	 *
608 	 *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
609 	 *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
610 	 *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
611 	 *                                GOF_PER_SEC)
612 	 *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
613 	 *                          GOF_PER_SEC * correctionPerGOF
614 	 *     initialDelay = ceil((24 * Fs,in) / Fs,out)
615 	 *
616 	 * i.e.
617 	 *
618 	 *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
619 	 *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
620 	 *     correctionPerGOF:correctionPerSec =
621 	 * 	    dividend:remainder(ulOther / GOF_PER_SEC)
622 	 *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
623 	 */
624 
625 	tmp1 = rate << 16;
626 	coeffIncr = tmp1 / 48000;
627 	tmp1 -= coeffIncr * 48000;
628 	tmp1 <<= 7;
629 	coeffIncr <<= 7;
630 	coeffIncr += tmp1 / 48000;
631 	coeffIncr ^= 0xFFFFFFFF;
632 	coeffIncr++;
633 	tmp1 = 48000 << 16;
634 	phiIncr = tmp1 / rate;
635 	tmp1 -= phiIncr * rate;
636 	tmp1 <<= 10;
637 	phiIncr <<= 10;
638 	tmp2 = tmp1 / rate;
639 	phiIncr += tmp2;
640 	tmp1 -= tmp2 * rate;
641 	correctionPerGOF = tmp1 / GOF_PER_SEC;
642 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
643 	correctionPerSec = tmp1;
644 	initialDelay = ((48000 * 24) + rate - 1) / rate;
645 
646 	/*
647 	 *  Fill in the VariDecimate control block.
648 	 */
649 	spin_lock_irqsave(&chip->reg_lock, flags);
650 	snd_cs46xx_poke(chip, BA1_CSRC,
651 		((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
652 	snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
653 	snd_cs46xx_poke(chip, BA1_CD,
654 		(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
655 	snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
656 	spin_unlock_irqrestore(&chip->reg_lock, flags);
657 
658 	/*
659 	 *  Figure out the frame group length for the write back task.  Basically,
660 	 *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
661 	 *  the output sample rate.
662 	 */
663 	frameGroupLength = 1;
664 	for (cnt = 2; cnt <= 64; cnt *= 2) {
665 		if (((rate / cnt) * cnt) != rate)
666 			frameGroupLength *= 2;
667 	}
668 	if (((rate / 3) * 3) != rate) {
669 		frameGroupLength *= 3;
670 	}
671 	for (cnt = 5; cnt <= 125; cnt *= 5) {
672 		if (((rate / cnt) * cnt) != rate)
673 			frameGroupLength *= 5;
674         }
675 
676 	/*
677 	 * Fill in the WriteBack control block.
678 	 */
679 	spin_lock_irqsave(&chip->reg_lock, flags);
680 	snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
681 	snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
682 	snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
683 	snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
684 	snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
685 	spin_unlock_irqrestore(&chip->reg_lock, flags);
686 }
687 
688 /*
689  *  PCM part
690  */
691 
692 static void snd_cs46xx_pb_trans_copy(struct snd_pcm_substream *substream,
693 				     struct snd_pcm_indirect *rec, size_t bytes)
694 {
695 	struct snd_pcm_runtime *runtime = substream->runtime;
696 	struct snd_cs46xx_pcm * cpcm = runtime->private_data;
697 	memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
698 }
699 
700 static int snd_cs46xx_playback_transfer(struct snd_pcm_substream *substream)
701 {
702 	struct snd_pcm_runtime *runtime = substream->runtime;
703 	struct snd_cs46xx_pcm * cpcm = runtime->private_data;
704 	snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec, snd_cs46xx_pb_trans_copy);
705 	return 0;
706 }
707 
708 static void snd_cs46xx_cp_trans_copy(struct snd_pcm_substream *substream,
709 				     struct snd_pcm_indirect *rec, size_t bytes)
710 {
711 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
712 	struct snd_pcm_runtime *runtime = substream->runtime;
713 	memcpy(runtime->dma_area + rec->sw_data,
714 	       chip->capt.hw_buf.area + rec->hw_data, bytes);
715 }
716 
717 static int snd_cs46xx_capture_transfer(struct snd_pcm_substream *substream)
718 {
719 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
720 	snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec, snd_cs46xx_cp_trans_copy);
721 	return 0;
722 }
723 
724 static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream *substream)
725 {
726 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
727 	size_t ptr;
728 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
729 
730 	if (snd_BUG_ON(!cpcm->pcm_channel))
731 		return -ENXIO;
732 
733 #ifdef CONFIG_SND_CS46XX_NEW_DSP
734 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
735 #else
736 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
737 #endif
738 	ptr -= cpcm->hw_buf.addr;
739 	return ptr >> cpcm->shift;
740 }
741 
742 static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream *substream)
743 {
744 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
745 	size_t ptr;
746 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
747 
748 #ifdef CONFIG_SND_CS46XX_NEW_DSP
749 	if (snd_BUG_ON(!cpcm->pcm_channel))
750 		return -ENXIO;
751 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
752 #else
753 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
754 #endif
755 	ptr -= cpcm->hw_buf.addr;
756 	return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
757 }
758 
759 static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream *substream)
760 {
761 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
762 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
763 	return ptr >> chip->capt.shift;
764 }
765 
766 static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream *substream)
767 {
768 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
769 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
770 	return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
771 }
772 
773 static int snd_cs46xx_playback_trigger(struct snd_pcm_substream *substream,
774 				       int cmd)
775 {
776 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
777 	/*struct snd_pcm_runtime *runtime = substream->runtime;*/
778 	int result = 0;
779 
780 #ifdef CONFIG_SND_CS46XX_NEW_DSP
781 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
782 	if (! cpcm->pcm_channel) {
783 		return -ENXIO;
784 	}
785 #endif
786 	switch (cmd) {
787 	case SNDRV_PCM_TRIGGER_START:
788 	case SNDRV_PCM_TRIGGER_RESUME:
789 #ifdef CONFIG_SND_CS46XX_NEW_DSP
790 		/* magic value to unmute PCM stream  playback volume */
791 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
792 				       SCBVolumeCtrl) << 2, 0x80008000);
793 
794 		if (cpcm->pcm_channel->unlinked)
795 			cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
796 
797 		if (substream->runtime->periods != CS46XX_FRAGS)
798 			snd_cs46xx_playback_transfer(substream);
799 #else
800 		spin_lock(&chip->reg_lock);
801 		if (substream->runtime->periods != CS46XX_FRAGS)
802 			snd_cs46xx_playback_transfer(substream);
803 		{ unsigned int tmp;
804 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
805 		tmp &= 0x0000ffff;
806 		snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
807 		}
808 		spin_unlock(&chip->reg_lock);
809 #endif
810 		break;
811 	case SNDRV_PCM_TRIGGER_STOP:
812 	case SNDRV_PCM_TRIGGER_SUSPEND:
813 #ifdef CONFIG_SND_CS46XX_NEW_DSP
814 		/* magic mute channel */
815 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
816 				       SCBVolumeCtrl) << 2, 0xffffffff);
817 
818 		if (!cpcm->pcm_channel->unlinked)
819 			cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
820 #else
821 		spin_lock(&chip->reg_lock);
822 		{ unsigned int tmp;
823 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
824 		tmp &= 0x0000ffff;
825 		snd_cs46xx_poke(chip, BA1_PCTL, tmp);
826 		}
827 		spin_unlock(&chip->reg_lock);
828 #endif
829 		break;
830 	default:
831 		result = -EINVAL;
832 		break;
833 	}
834 
835 	return result;
836 }
837 
838 static int snd_cs46xx_capture_trigger(struct snd_pcm_substream *substream,
839 				      int cmd)
840 {
841 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
842 	unsigned int tmp;
843 	int result = 0;
844 
845 	spin_lock(&chip->reg_lock);
846 	switch (cmd) {
847 	case SNDRV_PCM_TRIGGER_START:
848 	case SNDRV_PCM_TRIGGER_RESUME:
849 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
850 		tmp &= 0xffff0000;
851 		snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
852 		break;
853 	case SNDRV_PCM_TRIGGER_STOP:
854 	case SNDRV_PCM_TRIGGER_SUSPEND:
855 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
856 		tmp &= 0xffff0000;
857 		snd_cs46xx_poke(chip, BA1_CCTL, tmp);
858 		break;
859 	default:
860 		result = -EINVAL;
861 		break;
862 	}
863 	spin_unlock(&chip->reg_lock);
864 
865 	return result;
866 }
867 
868 #ifdef CONFIG_SND_CS46XX_NEW_DSP
869 static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46xx_pcm *cpcm,
870 				       int sample_rate)
871 {
872 
873 	/* If PCMReaderSCB and SrcTaskSCB not created yet ... */
874 	if ( cpcm->pcm_channel == NULL) {
875 		cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate,
876 								   cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
877 		if (cpcm->pcm_channel == NULL) {
878 			snd_printk(KERN_ERR "cs46xx: failed to create virtual PCM channel\n");
879 			return -ENOMEM;
880 		}
881 		cpcm->pcm_channel->sample_rate = sample_rate;
882 	} else
883 	/* if sample rate is changed */
884 	if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
885 		int unlinked = cpcm->pcm_channel->unlinked;
886 		cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
887 
888 		if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm,
889 									 cpcm->hw_buf.addr,
890 									 cpcm->pcm_channel_id)) == NULL) {
891 			snd_printk(KERN_ERR "cs46xx: failed to re-create virtual PCM channel\n");
892 			return -ENOMEM;
893 		}
894 
895 		if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
896 		cpcm->pcm_channel->sample_rate = sample_rate;
897 	}
898 
899 	return 0;
900 }
901 #endif
902 
903 
904 static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
905 					 struct snd_pcm_hw_params *hw_params)
906 {
907 	struct snd_pcm_runtime *runtime = substream->runtime;
908 	struct snd_cs46xx_pcm *cpcm;
909 	int err;
910 #ifdef CONFIG_SND_CS46XX_NEW_DSP
911 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
912 	int sample_rate = params_rate(hw_params);
913 	int period_size = params_period_bytes(hw_params);
914 #endif
915 	cpcm = runtime->private_data;
916 
917 #ifdef CONFIG_SND_CS46XX_NEW_DSP
918 	if (snd_BUG_ON(!sample_rate))
919 		return -ENXIO;
920 
921 	mutex_lock(&chip->spos_mutex);
922 
923 	if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
924 		mutex_unlock(&chip->spos_mutex);
925 		return -ENXIO;
926 	}
927 
928 	snd_BUG_ON(!cpcm->pcm_channel);
929 	if (!cpcm->pcm_channel) {
930 		mutex_unlock(&chip->spos_mutex);
931 		return -ENXIO;
932 	}
933 
934 
935 	if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
936 		 mutex_unlock(&chip->spos_mutex);
937 		 return -EINVAL;
938 	 }
939 
940 	snd_printdd ("period_size (%d), periods (%d) buffer_size(%d)\n",
941 		     period_size, params_periods(hw_params),
942 		     params_buffer_bytes(hw_params));
943 #endif
944 
945 	if (params_periods(hw_params) == CS46XX_FRAGS) {
946 		if (runtime->dma_area != cpcm->hw_buf.area)
947 			snd_pcm_lib_free_pages(substream);
948 		runtime->dma_area = cpcm->hw_buf.area;
949 		runtime->dma_addr = cpcm->hw_buf.addr;
950 		runtime->dma_bytes = cpcm->hw_buf.bytes;
951 
952 
953 #ifdef CONFIG_SND_CS46XX_NEW_DSP
954 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
955 			substream->ops = &snd_cs46xx_playback_ops;
956 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
957 			substream->ops = &snd_cs46xx_playback_rear_ops;
958 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
959 			substream->ops = &snd_cs46xx_playback_clfe_ops;
960 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
961 			substream->ops = &snd_cs46xx_playback_iec958_ops;
962 		} else {
963 			snd_BUG();
964 		}
965 #else
966 		substream->ops = &snd_cs46xx_playback_ops;
967 #endif
968 
969 	} else {
970 		if (runtime->dma_area == cpcm->hw_buf.area) {
971 			runtime->dma_area = NULL;
972 			runtime->dma_addr = 0;
973 			runtime->dma_bytes = 0;
974 		}
975 		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
976 #ifdef CONFIG_SND_CS46XX_NEW_DSP
977 			mutex_unlock(&chip->spos_mutex);
978 #endif
979 			return err;
980 		}
981 
982 #ifdef CONFIG_SND_CS46XX_NEW_DSP
983 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
984 			substream->ops = &snd_cs46xx_playback_indirect_ops;
985 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
986 			substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
987 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
988 			substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
989 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
990 			substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
991 		} else {
992 			snd_BUG();
993 		}
994 #else
995 		substream->ops = &snd_cs46xx_playback_indirect_ops;
996 #endif
997 
998 	}
999 
1000 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1001 	mutex_unlock(&chip->spos_mutex);
1002 #endif
1003 
1004 	return 0;
1005 }
1006 
1007 static int snd_cs46xx_playback_hw_free(struct snd_pcm_substream *substream)
1008 {
1009 	/*struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);*/
1010 	struct snd_pcm_runtime *runtime = substream->runtime;
1011 	struct snd_cs46xx_pcm *cpcm;
1012 
1013 	cpcm = runtime->private_data;
1014 
1015 	/* if play_back open fails, then this function
1016 	   is called and cpcm can actually be NULL here */
1017 	if (!cpcm) return -ENXIO;
1018 
1019 	if (runtime->dma_area != cpcm->hw_buf.area)
1020 		snd_pcm_lib_free_pages(substream);
1021 
1022 	runtime->dma_area = NULL;
1023 	runtime->dma_addr = 0;
1024 	runtime->dma_bytes = 0;
1025 
1026 	return 0;
1027 }
1028 
1029 static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
1030 {
1031 	unsigned int tmp;
1032 	unsigned int pfie;
1033 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1034 	struct snd_pcm_runtime *runtime = substream->runtime;
1035 	struct snd_cs46xx_pcm *cpcm;
1036 
1037 	cpcm = runtime->private_data;
1038 
1039 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1040 	if (snd_BUG_ON(!cpcm->pcm_channel))
1041 		return -ENXIO;
1042 
1043 	pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
1044 	pfie &= ~0x0000f03f;
1045 #else
1046 	/* old dsp */
1047 	pfie = snd_cs46xx_peek(chip, BA1_PFIE);
1048  	pfie &= ~0x0000f03f;
1049 #endif
1050 
1051 	cpcm->shift = 2;
1052 	/* if to convert from stereo to mono */
1053 	if (runtime->channels == 1) {
1054 		cpcm->shift--;
1055 		pfie |= 0x00002000;
1056 	}
1057 	/* if to convert from 8 bit to 16 bit */
1058 	if (snd_pcm_format_width(runtime->format) == 8) {
1059 		cpcm->shift--;
1060 		pfie |= 0x00001000;
1061 	}
1062 	/* if to convert to unsigned */
1063 	if (snd_pcm_format_unsigned(runtime->format))
1064 		pfie |= 0x00008000;
1065 
1066 	/* Never convert byte order when sample stream is 8 bit */
1067 	if (snd_pcm_format_width(runtime->format) != 8) {
1068 		/* convert from big endian to little endian */
1069 		if (snd_pcm_format_big_endian(runtime->format))
1070 			pfie |= 0x00004000;
1071 	}
1072 
1073 	memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
1074 	cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1075 	cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
1076 
1077 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1078 
1079 	tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
1080 	tmp &= ~0x000003ff;
1081 	tmp |= (4 << cpcm->shift) - 1;
1082 	/* playback transaction count register */
1083 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
1084 
1085 	/* playback format && interrupt enable */
1086 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
1087 #else
1088 	snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
1089 	tmp = snd_cs46xx_peek(chip, BA1_PDTC);
1090 	tmp &= ~0x000003ff;
1091 	tmp |= (4 << cpcm->shift) - 1;
1092 	snd_cs46xx_poke(chip, BA1_PDTC, tmp);
1093 	snd_cs46xx_poke(chip, BA1_PFIE, pfie);
1094 	snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
1095 #endif
1096 
1097 	return 0;
1098 }
1099 
1100 static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream,
1101 					struct snd_pcm_hw_params *hw_params)
1102 {
1103 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1104 	struct snd_pcm_runtime *runtime = substream->runtime;
1105 	int err;
1106 
1107 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1108 	cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
1109 #endif
1110 	if (runtime->periods == CS46XX_FRAGS) {
1111 		if (runtime->dma_area != chip->capt.hw_buf.area)
1112 			snd_pcm_lib_free_pages(substream);
1113 		runtime->dma_area = chip->capt.hw_buf.area;
1114 		runtime->dma_addr = chip->capt.hw_buf.addr;
1115 		runtime->dma_bytes = chip->capt.hw_buf.bytes;
1116 		substream->ops = &snd_cs46xx_capture_ops;
1117 	} else {
1118 		if (runtime->dma_area == chip->capt.hw_buf.area) {
1119 			runtime->dma_area = NULL;
1120 			runtime->dma_addr = 0;
1121 			runtime->dma_bytes = 0;
1122 		}
1123 		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1124 			return err;
1125 		substream->ops = &snd_cs46xx_capture_indirect_ops;
1126 	}
1127 
1128 	return 0;
1129 }
1130 
1131 static int snd_cs46xx_capture_hw_free(struct snd_pcm_substream *substream)
1132 {
1133 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1134 	struct snd_pcm_runtime *runtime = substream->runtime;
1135 
1136 	if (runtime->dma_area != chip->capt.hw_buf.area)
1137 		snd_pcm_lib_free_pages(substream);
1138 	runtime->dma_area = NULL;
1139 	runtime->dma_addr = 0;
1140 	runtime->dma_bytes = 0;
1141 
1142 	return 0;
1143 }
1144 
1145 static int snd_cs46xx_capture_prepare(struct snd_pcm_substream *substream)
1146 {
1147 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1148 	struct snd_pcm_runtime *runtime = substream->runtime;
1149 
1150 	snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
1151 	chip->capt.shift = 2;
1152 	memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
1153 	chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1154 	chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
1155 	snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
1156 
1157 	return 0;
1158 }
1159 
1160 static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
1161 {
1162 	struct snd_cs46xx *chip = dev_id;
1163 	u32 status1;
1164 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1165 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1166 	u32 status2;
1167 	int i;
1168 	struct snd_cs46xx_pcm *cpcm = NULL;
1169 #endif
1170 
1171 	/*
1172 	 *  Read the Interrupt Status Register to clear the interrupt
1173 	 */
1174 	status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
1175 	if ((status1 & 0x7fffffff) == 0) {
1176 		snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1177 		return IRQ_NONE;
1178 	}
1179 
1180 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1181 	status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
1182 
1183 	for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
1184 		if (i <= 15) {
1185 			if ( status1 & (1 << i) ) {
1186 				if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
1187 					if (chip->capt.substream)
1188 						snd_pcm_period_elapsed(chip->capt.substream);
1189 				} else {
1190 					if (ins->pcm_channels[i].active &&
1191 					    ins->pcm_channels[i].private_data &&
1192 					    !ins->pcm_channels[i].unlinked) {
1193 						cpcm = ins->pcm_channels[i].private_data;
1194 						snd_pcm_period_elapsed(cpcm->substream);
1195 					}
1196 				}
1197 			}
1198 		} else {
1199 			if ( status2 & (1 << (i - 16))) {
1200 				if (ins->pcm_channels[i].active &&
1201 				    ins->pcm_channels[i].private_data &&
1202 				    !ins->pcm_channels[i].unlinked) {
1203 					cpcm = ins->pcm_channels[i].private_data;
1204 					snd_pcm_period_elapsed(cpcm->substream);
1205 				}
1206 			}
1207 		}
1208 	}
1209 
1210 #else
1211 	/* old dsp */
1212 	if ((status1 & HISR_VC0) && chip->playback_pcm) {
1213 		if (chip->playback_pcm->substream)
1214 			snd_pcm_period_elapsed(chip->playback_pcm->substream);
1215 	}
1216 	if ((status1 & HISR_VC1) && chip->pcm) {
1217 		if (chip->capt.substream)
1218 			snd_pcm_period_elapsed(chip->capt.substream);
1219 	}
1220 #endif
1221 
1222 	if ((status1 & HISR_MIDI) && chip->rmidi) {
1223 		unsigned char c;
1224 
1225 		spin_lock(&chip->reg_lock);
1226 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
1227 			c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
1228 			if ((chip->midcr & MIDCR_RIE) == 0)
1229 				continue;
1230 			snd_rawmidi_receive(chip->midi_input, &c, 1);
1231 		}
1232 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
1233 			if ((chip->midcr & MIDCR_TIE) == 0)
1234 				break;
1235 			if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
1236 				chip->midcr &= ~MIDCR_TIE;
1237 				snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
1238 				break;
1239 			}
1240 			snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
1241 		}
1242 		spin_unlock(&chip->reg_lock);
1243 	}
1244 	/*
1245 	 *  EOI to the PCI part....reenables interrupts
1246 	 */
1247 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1248 
1249 	return IRQ_HANDLED;
1250 }
1251 
1252 static struct snd_pcm_hardware snd_cs46xx_playback =
1253 {
1254 	.info =			(SNDRV_PCM_INFO_MMAP |
1255 				 SNDRV_PCM_INFO_INTERLEAVED |
1256 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1257 				 /*SNDRV_PCM_INFO_RESUME*/),
1258 	.formats =		(SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1259 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
1260 				 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
1261 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1262 	.rate_min =		5500,
1263 	.rate_max =		48000,
1264 	.channels_min =		1,
1265 	.channels_max =		2,
1266 	.buffer_bytes_max =	(256 * 1024),
1267 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1268 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1269 	.periods_min =		CS46XX_FRAGS,
1270 	.periods_max =		1024,
1271 	.fifo_size =		0,
1272 };
1273 
1274 static struct snd_pcm_hardware snd_cs46xx_capture =
1275 {
1276 	.info =			(SNDRV_PCM_INFO_MMAP |
1277 				 SNDRV_PCM_INFO_INTERLEAVED |
1278 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1279 				 /*SNDRV_PCM_INFO_RESUME*/),
1280 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1281 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1282 	.rate_min =		5500,
1283 	.rate_max =		48000,
1284 	.channels_min =		2,
1285 	.channels_max =		2,
1286 	.buffer_bytes_max =	(256 * 1024),
1287 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1288 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1289 	.periods_min =		CS46XX_FRAGS,
1290 	.periods_max =		1024,
1291 	.fifo_size =		0,
1292 };
1293 
1294 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1295 
1296 static unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
1297 
1298 static struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
1299 	.count = ARRAY_SIZE(period_sizes),
1300 	.list = period_sizes,
1301 	.mask = 0
1302 };
1303 
1304 #endif
1305 
1306 static void snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime *runtime)
1307 {
1308 	kfree(runtime->private_data);
1309 }
1310 
1311 static int _cs46xx_playback_open_channel (struct snd_pcm_substream *substream,int pcm_channel_id)
1312 {
1313 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1314 	struct snd_cs46xx_pcm * cpcm;
1315 	struct snd_pcm_runtime *runtime = substream->runtime;
1316 
1317 	cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
1318 	if (cpcm == NULL)
1319 		return -ENOMEM;
1320 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1321 				PAGE_SIZE, &cpcm->hw_buf) < 0) {
1322 		kfree(cpcm);
1323 		return -ENOMEM;
1324 	}
1325 
1326 	runtime->hw = snd_cs46xx_playback;
1327 	runtime->private_data = cpcm;
1328 	runtime->private_free = snd_cs46xx_pcm_free_substream;
1329 
1330 	cpcm->substream = substream;
1331 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1332 	mutex_lock(&chip->spos_mutex);
1333 	cpcm->pcm_channel = NULL;
1334 	cpcm->pcm_channel_id = pcm_channel_id;
1335 
1336 
1337 	snd_pcm_hw_constraint_list(runtime, 0,
1338 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1339 				   &hw_constraints_period_sizes);
1340 
1341 	mutex_unlock(&chip->spos_mutex);
1342 #else
1343 	chip->playback_pcm = cpcm; /* HACK */
1344 #endif
1345 
1346 	if (chip->accept_valid)
1347 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1348 	chip->active_ctrl(chip, 1);
1349 
1350 	return 0;
1351 }
1352 
1353 static int snd_cs46xx_playback_open(struct snd_pcm_substream *substream)
1354 {
1355 	snd_printdd("open front channel\n");
1356 	return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
1357 }
1358 
1359 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1360 static int snd_cs46xx_playback_open_rear(struct snd_pcm_substream *substream)
1361 {
1362 	snd_printdd("open rear channel\n");
1363 
1364 	return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
1365 }
1366 
1367 static int snd_cs46xx_playback_open_clfe(struct snd_pcm_substream *substream)
1368 {
1369 	snd_printdd("open center - LFE channel\n");
1370 
1371 	return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
1372 }
1373 
1374 static int snd_cs46xx_playback_open_iec958(struct snd_pcm_substream *substream)
1375 {
1376 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1377 
1378 	snd_printdd("open raw iec958 channel\n");
1379 
1380 	mutex_lock(&chip->spos_mutex);
1381 	cs46xx_iec958_pre_open (chip);
1382 	mutex_unlock(&chip->spos_mutex);
1383 
1384 	return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
1385 }
1386 
1387 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream);
1388 
1389 static int snd_cs46xx_playback_close_iec958(struct snd_pcm_substream *substream)
1390 {
1391 	int err;
1392 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1393 
1394 	snd_printdd("close raw iec958 channel\n");
1395 
1396 	err = snd_cs46xx_playback_close(substream);
1397 
1398 	mutex_lock(&chip->spos_mutex);
1399 	cs46xx_iec958_post_close (chip);
1400 	mutex_unlock(&chip->spos_mutex);
1401 
1402 	return err;
1403 }
1404 #endif
1405 
1406 static int snd_cs46xx_capture_open(struct snd_pcm_substream *substream)
1407 {
1408 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1409 
1410 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1411 				PAGE_SIZE, &chip->capt.hw_buf) < 0)
1412 		return -ENOMEM;
1413 	chip->capt.substream = substream;
1414 	substream->runtime->hw = snd_cs46xx_capture;
1415 
1416 	if (chip->accept_valid)
1417 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1418 
1419 	chip->active_ctrl(chip, 1);
1420 
1421 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1422 	snd_pcm_hw_constraint_list(substream->runtime, 0,
1423 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1424 				   &hw_constraints_period_sizes);
1425 #endif
1426 	return 0;
1427 }
1428 
1429 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream)
1430 {
1431 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1432 	struct snd_pcm_runtime *runtime = substream->runtime;
1433 	struct snd_cs46xx_pcm * cpcm;
1434 
1435 	cpcm = runtime->private_data;
1436 
1437 	/* when playback_open fails, then cpcm can be NULL */
1438 	if (!cpcm) return -ENXIO;
1439 
1440 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1441 	mutex_lock(&chip->spos_mutex);
1442 	if (cpcm->pcm_channel) {
1443 		cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
1444 		cpcm->pcm_channel = NULL;
1445 	}
1446 	mutex_unlock(&chip->spos_mutex);
1447 #else
1448 	chip->playback_pcm = NULL;
1449 #endif
1450 
1451 	cpcm->substream = NULL;
1452 	snd_dma_free_pages(&cpcm->hw_buf);
1453 	chip->active_ctrl(chip, -1);
1454 
1455 	return 0;
1456 }
1457 
1458 static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
1459 {
1460 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1461 
1462 	chip->capt.substream = NULL;
1463 	snd_dma_free_pages(&chip->capt.hw_buf);
1464 	chip->active_ctrl(chip, -1);
1465 
1466 	return 0;
1467 }
1468 
1469 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1470 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
1471 	.open =			snd_cs46xx_playback_open_rear,
1472 	.close =		snd_cs46xx_playback_close,
1473 	.ioctl =		snd_pcm_lib_ioctl,
1474 	.hw_params =		snd_cs46xx_playback_hw_params,
1475 	.hw_free =		snd_cs46xx_playback_hw_free,
1476 	.prepare =		snd_cs46xx_playback_prepare,
1477 	.trigger =		snd_cs46xx_playback_trigger,
1478 	.pointer =		snd_cs46xx_playback_direct_pointer,
1479 };
1480 
1481 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
1482 	.open =			snd_cs46xx_playback_open_rear,
1483 	.close =		snd_cs46xx_playback_close,
1484 	.ioctl =		snd_pcm_lib_ioctl,
1485 	.hw_params =		snd_cs46xx_playback_hw_params,
1486 	.hw_free =		snd_cs46xx_playback_hw_free,
1487 	.prepare =		snd_cs46xx_playback_prepare,
1488 	.trigger =		snd_cs46xx_playback_trigger,
1489 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1490 	.ack =			snd_cs46xx_playback_transfer,
1491 };
1492 
1493 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
1494 	.open =			snd_cs46xx_playback_open_clfe,
1495 	.close =		snd_cs46xx_playback_close,
1496 	.ioctl =		snd_pcm_lib_ioctl,
1497 	.hw_params =		snd_cs46xx_playback_hw_params,
1498 	.hw_free =		snd_cs46xx_playback_hw_free,
1499 	.prepare =		snd_cs46xx_playback_prepare,
1500 	.trigger =		snd_cs46xx_playback_trigger,
1501 	.pointer =		snd_cs46xx_playback_direct_pointer,
1502 };
1503 
1504 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
1505 	.open =			snd_cs46xx_playback_open_clfe,
1506 	.close =		snd_cs46xx_playback_close,
1507 	.ioctl =		snd_pcm_lib_ioctl,
1508 	.hw_params =		snd_cs46xx_playback_hw_params,
1509 	.hw_free =		snd_cs46xx_playback_hw_free,
1510 	.prepare =		snd_cs46xx_playback_prepare,
1511 	.trigger =		snd_cs46xx_playback_trigger,
1512 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1513 	.ack =			snd_cs46xx_playback_transfer,
1514 };
1515 
1516 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
1517 	.open =			snd_cs46xx_playback_open_iec958,
1518 	.close =		snd_cs46xx_playback_close_iec958,
1519 	.ioctl =		snd_pcm_lib_ioctl,
1520 	.hw_params =		snd_cs46xx_playback_hw_params,
1521 	.hw_free =		snd_cs46xx_playback_hw_free,
1522 	.prepare =		snd_cs46xx_playback_prepare,
1523 	.trigger =		snd_cs46xx_playback_trigger,
1524 	.pointer =		snd_cs46xx_playback_direct_pointer,
1525 };
1526 
1527 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
1528 	.open =			snd_cs46xx_playback_open_iec958,
1529 	.close =		snd_cs46xx_playback_close_iec958,
1530 	.ioctl =		snd_pcm_lib_ioctl,
1531 	.hw_params =		snd_cs46xx_playback_hw_params,
1532 	.hw_free =		snd_cs46xx_playback_hw_free,
1533 	.prepare =		snd_cs46xx_playback_prepare,
1534 	.trigger =		snd_cs46xx_playback_trigger,
1535 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1536 	.ack =			snd_cs46xx_playback_transfer,
1537 };
1538 
1539 #endif
1540 
1541 static struct snd_pcm_ops snd_cs46xx_playback_ops = {
1542 	.open =			snd_cs46xx_playback_open,
1543 	.close =		snd_cs46xx_playback_close,
1544 	.ioctl =		snd_pcm_lib_ioctl,
1545 	.hw_params =		snd_cs46xx_playback_hw_params,
1546 	.hw_free =		snd_cs46xx_playback_hw_free,
1547 	.prepare =		snd_cs46xx_playback_prepare,
1548 	.trigger =		snd_cs46xx_playback_trigger,
1549 	.pointer =		snd_cs46xx_playback_direct_pointer,
1550 };
1551 
1552 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
1553 	.open =			snd_cs46xx_playback_open,
1554 	.close =		snd_cs46xx_playback_close,
1555 	.ioctl =		snd_pcm_lib_ioctl,
1556 	.hw_params =		snd_cs46xx_playback_hw_params,
1557 	.hw_free =		snd_cs46xx_playback_hw_free,
1558 	.prepare =		snd_cs46xx_playback_prepare,
1559 	.trigger =		snd_cs46xx_playback_trigger,
1560 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1561 	.ack =			snd_cs46xx_playback_transfer,
1562 };
1563 
1564 static struct snd_pcm_ops snd_cs46xx_capture_ops = {
1565 	.open =			snd_cs46xx_capture_open,
1566 	.close =		snd_cs46xx_capture_close,
1567 	.ioctl =		snd_pcm_lib_ioctl,
1568 	.hw_params =		snd_cs46xx_capture_hw_params,
1569 	.hw_free =		snd_cs46xx_capture_hw_free,
1570 	.prepare =		snd_cs46xx_capture_prepare,
1571 	.trigger =		snd_cs46xx_capture_trigger,
1572 	.pointer =		snd_cs46xx_capture_direct_pointer,
1573 };
1574 
1575 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
1576 	.open =			snd_cs46xx_capture_open,
1577 	.close =		snd_cs46xx_capture_close,
1578 	.ioctl =		snd_pcm_lib_ioctl,
1579 	.hw_params =		snd_cs46xx_capture_hw_params,
1580 	.hw_free =		snd_cs46xx_capture_hw_free,
1581 	.prepare =		snd_cs46xx_capture_prepare,
1582 	.trigger =		snd_cs46xx_capture_trigger,
1583 	.pointer =		snd_cs46xx_capture_indirect_pointer,
1584 	.ack =			snd_cs46xx_capture_transfer,
1585 };
1586 
1587 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1588 #define MAX_PLAYBACK_CHANNELS	(DSP_MAX_PCM_CHANNELS - 1)
1589 #else
1590 #define MAX_PLAYBACK_CHANNELS	1
1591 #endif
1592 
1593 int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm)
1594 {
1595 	struct snd_pcm *pcm;
1596 	int err;
1597 
1598 	if (rpcm)
1599 		*rpcm = NULL;
1600 	if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
1601 		return err;
1602 
1603 	pcm->private_data = chip;
1604 
1605 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
1606 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
1607 
1608 	/* global setup */
1609 	pcm->info_flags = 0;
1610 	strcpy(pcm->name, "CS46xx");
1611 	chip->pcm = pcm;
1612 
1613 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1614 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1615 
1616 	if (rpcm)
1617 		*rpcm = pcm;
1618 
1619 	return 0;
1620 }
1621 
1622 
1623 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1624 int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device,
1625 			struct snd_pcm **rpcm)
1626 {
1627 	struct snd_pcm *pcm;
1628 	int err;
1629 
1630 	if (rpcm)
1631 		*rpcm = NULL;
1632 
1633 	if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1634 		return err;
1635 
1636 	pcm->private_data = chip;
1637 
1638 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
1639 
1640 	/* global setup */
1641 	pcm->info_flags = 0;
1642 	strcpy(pcm->name, "CS46xx - Rear");
1643 	chip->pcm_rear = pcm;
1644 
1645 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1646 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1647 
1648 	if (rpcm)
1649 		*rpcm = pcm;
1650 
1651 	return 0;
1652 }
1653 
1654 int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device,
1655 			      struct snd_pcm **rpcm)
1656 {
1657 	struct snd_pcm *pcm;
1658 	int err;
1659 
1660 	if (rpcm)
1661 		*rpcm = NULL;
1662 
1663 	if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1664 		return err;
1665 
1666 	pcm->private_data = chip;
1667 
1668 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
1669 
1670 	/* global setup */
1671 	pcm->info_flags = 0;
1672 	strcpy(pcm->name, "CS46xx - Center LFE");
1673 	chip->pcm_center_lfe = pcm;
1674 
1675 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1676 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1677 
1678 	if (rpcm)
1679 		*rpcm = pcm;
1680 
1681 	return 0;
1682 }
1683 
1684 int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device,
1685 			  struct snd_pcm **rpcm)
1686 {
1687 	struct snd_pcm *pcm;
1688 	int err;
1689 
1690 	if (rpcm)
1691 		*rpcm = NULL;
1692 
1693 	if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
1694 		return err;
1695 
1696 	pcm->private_data = chip;
1697 
1698 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
1699 
1700 	/* global setup */
1701 	pcm->info_flags = 0;
1702 	strcpy(pcm->name, "CS46xx - IEC958");
1703 	chip->pcm_rear = pcm;
1704 
1705 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1706 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1707 
1708 	if (rpcm)
1709 		*rpcm = pcm;
1710 
1711 	return 0;
1712 }
1713 #endif
1714 
1715 /*
1716  *  Mixer routines
1717  */
1718 static void snd_cs46xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1719 {
1720 	struct snd_cs46xx *chip = bus->private_data;
1721 
1722 	chip->ac97_bus = NULL;
1723 }
1724 
1725 static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
1726 {
1727 	struct snd_cs46xx *chip = ac97->private_data;
1728 
1729 	if (snd_BUG_ON(ac97 != chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] &&
1730 		       ac97 != chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]))
1731 		return;
1732 
1733 	if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
1734 		chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
1735 		chip->eapd_switch = NULL;
1736 	}
1737 	else
1738 		chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
1739 }
1740 
1741 static int snd_cs46xx_vol_info(struct snd_kcontrol *kcontrol,
1742 			       struct snd_ctl_elem_info *uinfo)
1743 {
1744 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1745 	uinfo->count = 2;
1746 	uinfo->value.integer.min = 0;
1747 	uinfo->value.integer.max = 0x7fff;
1748 	return 0;
1749 }
1750 
1751 static int snd_cs46xx_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1752 {
1753 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1754 	int reg = kcontrol->private_value;
1755 	unsigned int val = snd_cs46xx_peek(chip, reg);
1756 	ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
1757 	ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
1758 	return 0;
1759 }
1760 
1761 static int snd_cs46xx_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1762 {
1763 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1764 	int reg = kcontrol->private_value;
1765 	unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 |
1766 			    (0xffff - ucontrol->value.integer.value[1]));
1767 	unsigned int old = snd_cs46xx_peek(chip, reg);
1768 	int change = (old != val);
1769 
1770 	if (change) {
1771 		snd_cs46xx_poke(chip, reg, val);
1772 	}
1773 
1774 	return change;
1775 }
1776 
1777 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1778 
1779 static int snd_cs46xx_vol_dac_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1780 {
1781 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1782 
1783 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
1784 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
1785 
1786 	return 0;
1787 }
1788 
1789 static int snd_cs46xx_vol_dac_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1790 {
1791 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1792 	int change = 0;
1793 
1794 	if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
1795 	    chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
1796 		cs46xx_dsp_set_dac_volume(chip,
1797 					  ucontrol->value.integer.value[0],
1798 					  ucontrol->value.integer.value[1]);
1799 		change = 1;
1800 	}
1801 
1802 	return change;
1803 }
1804 
1805 #if 0
1806 static int snd_cs46xx_vol_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1807 {
1808 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1809 
1810 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
1811 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
1812 	return 0;
1813 }
1814 
1815 static int snd_cs46xx_vol_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1816 {
1817 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1818 	int change = 0;
1819 
1820 	if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
1821 	    chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
1822 		cs46xx_dsp_set_iec958_volume (chip,
1823 					      ucontrol->value.integer.value[0],
1824 					      ucontrol->value.integer.value[1]);
1825 		change = 1;
1826 	}
1827 
1828 	return change;
1829 }
1830 #endif
1831 
1832 #define snd_mixer_boolean_info		snd_ctl_boolean_mono_info
1833 
1834 static int snd_cs46xx_iec958_get(struct snd_kcontrol *kcontrol,
1835                                  struct snd_ctl_elem_value *ucontrol)
1836 {
1837 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1838 	int reg = kcontrol->private_value;
1839 
1840 	if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
1841 		ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1842 	else
1843 		ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
1844 
1845 	return 0;
1846 }
1847 
1848 static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol,
1849                                   struct snd_ctl_elem_value *ucontrol)
1850 {
1851 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1852 	int change, res;
1853 
1854 	switch (kcontrol->private_value) {
1855 	case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
1856 		mutex_lock(&chip->spos_mutex);
1857 		change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1858 		if (ucontrol->value.integer.value[0] && !change)
1859 			cs46xx_dsp_enable_spdif_out(chip);
1860 		else if (change && !ucontrol->value.integer.value[0])
1861 			cs46xx_dsp_disable_spdif_out(chip);
1862 
1863 		res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
1864 		mutex_unlock(&chip->spos_mutex);
1865 		break;
1866 	case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
1867 		change = chip->dsp_spos_instance->spdif_status_in;
1868 		if (ucontrol->value.integer.value[0] && !change) {
1869 			cs46xx_dsp_enable_spdif_in(chip);
1870 			/* restore volume */
1871 		}
1872 		else if (change && !ucontrol->value.integer.value[0])
1873 			cs46xx_dsp_disable_spdif_in(chip);
1874 
1875 		res = (change != chip->dsp_spos_instance->spdif_status_in);
1876 		break;
1877 	default:
1878 		res = -EINVAL;
1879 		snd_BUG(); /* should never happen ... */
1880 	}
1881 
1882 	return res;
1883 }
1884 
1885 static int snd_cs46xx_adc_capture_get(struct snd_kcontrol *kcontrol,
1886                                       struct snd_ctl_elem_value *ucontrol)
1887 {
1888 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1889 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1890 
1891 	if (ins->adc_input != NULL)
1892 		ucontrol->value.integer.value[0] = 1;
1893 	else
1894 		ucontrol->value.integer.value[0] = 0;
1895 
1896 	return 0;
1897 }
1898 
1899 static int snd_cs46xx_adc_capture_put(struct snd_kcontrol *kcontrol,
1900                                       struct snd_ctl_elem_value *ucontrol)
1901 {
1902 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1903 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1904 	int change = 0;
1905 
1906 	if (ucontrol->value.integer.value[0] && !ins->adc_input) {
1907 		cs46xx_dsp_enable_adc_capture(chip);
1908 		change = 1;
1909 	} else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
1910 		cs46xx_dsp_disable_adc_capture(chip);
1911 		change = 1;
1912 	}
1913 	return change;
1914 }
1915 
1916 static int snd_cs46xx_pcm_capture_get(struct snd_kcontrol *kcontrol,
1917                                       struct snd_ctl_elem_value *ucontrol)
1918 {
1919 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1920 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1921 
1922 	if (ins->pcm_input != NULL)
1923 		ucontrol->value.integer.value[0] = 1;
1924 	else
1925 		ucontrol->value.integer.value[0] = 0;
1926 
1927 	return 0;
1928 }
1929 
1930 
1931 static int snd_cs46xx_pcm_capture_put(struct snd_kcontrol *kcontrol,
1932                                       struct snd_ctl_elem_value *ucontrol)
1933 {
1934 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1935 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1936 	int change = 0;
1937 
1938 	if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
1939 		cs46xx_dsp_enable_pcm_capture(chip);
1940 		change = 1;
1941 	} else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
1942 		cs46xx_dsp_disable_pcm_capture(chip);
1943 		change = 1;
1944 	}
1945 
1946 	return change;
1947 }
1948 
1949 static int snd_herc_spdif_select_get(struct snd_kcontrol *kcontrol,
1950                                      struct snd_ctl_elem_value *ucontrol)
1951 {
1952 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1953 
1954 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1955 
1956 	if (val1 & EGPIODR_GPOE0)
1957 		ucontrol->value.integer.value[0] = 1;
1958 	else
1959 		ucontrol->value.integer.value[0] = 0;
1960 
1961 	return 0;
1962 }
1963 
1964 /*
1965  *	Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
1966  */
1967 static int snd_herc_spdif_select_put(struct snd_kcontrol *kcontrol,
1968                                        struct snd_ctl_elem_value *ucontrol)
1969 {
1970 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1971 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1972 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
1973 
1974 	if (ucontrol->value.integer.value[0]) {
1975 		/* optical is default */
1976 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
1977 				   EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
1978 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
1979 				   EGPIOPTR_GPPT0 | val2); /* open-drain on output */
1980 	} else {
1981 		/* coaxial */
1982 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
1983 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
1984 	}
1985 
1986 	/* checking diff from the EGPIO direction register
1987 	   should be enough */
1988 	return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
1989 }
1990 
1991 
1992 static int snd_cs46xx_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1993 {
1994 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1995 	uinfo->count = 1;
1996 	return 0;
1997 }
1998 
1999 static int snd_cs46xx_spdif_default_get(struct snd_kcontrol *kcontrol,
2000 					struct snd_ctl_elem_value *ucontrol)
2001 {
2002 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2003 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2004 
2005 	mutex_lock(&chip->spos_mutex);
2006 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
2007 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
2008 	ucontrol->value.iec958.status[2] = 0;
2009 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
2010 	mutex_unlock(&chip->spos_mutex);
2011 
2012 	return 0;
2013 }
2014 
2015 static int snd_cs46xx_spdif_default_put(struct snd_kcontrol *kcontrol,
2016 					struct snd_ctl_elem_value *ucontrol)
2017 {
2018 	struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2019 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2020 	unsigned int val;
2021 	int change;
2022 
2023 	mutex_lock(&chip->spos_mutex);
2024 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2025 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
2026 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
2027 		/* left and right validity bit */
2028 		(1 << 13) | (1 << 12);
2029 
2030 
2031 	change = (unsigned int)ins->spdif_csuv_default != val;
2032 	ins->spdif_csuv_default = val;
2033 
2034 	if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
2035 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2036 
2037 	mutex_unlock(&chip->spos_mutex);
2038 
2039 	return change;
2040 }
2041 
2042 static int snd_cs46xx_spdif_mask_get(struct snd_kcontrol *kcontrol,
2043 				     struct snd_ctl_elem_value *ucontrol)
2044 {
2045 	ucontrol->value.iec958.status[0] = 0xff;
2046 	ucontrol->value.iec958.status[1] = 0xff;
2047 	ucontrol->value.iec958.status[2] = 0x00;
2048 	ucontrol->value.iec958.status[3] = 0xff;
2049 	return 0;
2050 }
2051 
2052 static int snd_cs46xx_spdif_stream_get(struct snd_kcontrol *kcontrol,
2053                                          struct snd_ctl_elem_value *ucontrol)
2054 {
2055 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2056 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2057 
2058 	mutex_lock(&chip->spos_mutex);
2059 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
2060 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
2061 	ucontrol->value.iec958.status[2] = 0;
2062 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
2063 	mutex_unlock(&chip->spos_mutex);
2064 
2065 	return 0;
2066 }
2067 
2068 static int snd_cs46xx_spdif_stream_put(struct snd_kcontrol *kcontrol,
2069                                         struct snd_ctl_elem_value *ucontrol)
2070 {
2071 	struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2072 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2073 	unsigned int val;
2074 	int change;
2075 
2076 	mutex_lock(&chip->spos_mutex);
2077 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2078 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
2079 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
2080 		/* left and right validity bit */
2081 		(1 << 13) | (1 << 12);
2082 
2083 
2084 	change = ins->spdif_csuv_stream != val;
2085 	ins->spdif_csuv_stream = val;
2086 
2087 	if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
2088 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2089 
2090 	mutex_unlock(&chip->spos_mutex);
2091 
2092 	return change;
2093 }
2094 
2095 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2096 
2097 
2098 static struct snd_kcontrol_new snd_cs46xx_controls[] = {
2099 {
2100 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2101 	.name = "DAC Volume",
2102 	.info = snd_cs46xx_vol_info,
2103 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2104 	.get = snd_cs46xx_vol_get,
2105 	.put = snd_cs46xx_vol_put,
2106 	.private_value = BA1_PVOL,
2107 #else
2108 	.get = snd_cs46xx_vol_dac_get,
2109 	.put = snd_cs46xx_vol_dac_put,
2110 #endif
2111 },
2112 
2113 {
2114 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2115 	.name = "ADC Volume",
2116 	.info = snd_cs46xx_vol_info,
2117 	.get = snd_cs46xx_vol_get,
2118 	.put = snd_cs46xx_vol_put,
2119 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2120 	.private_value = BA1_CVOL,
2121 #else
2122 	.private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
2123 #endif
2124 },
2125 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2126 {
2127 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2128 	.name = "ADC Capture Switch",
2129 	.info = snd_mixer_boolean_info,
2130 	.get = snd_cs46xx_adc_capture_get,
2131 	.put = snd_cs46xx_adc_capture_put
2132 },
2133 {
2134 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2135 	.name = "DAC Capture Switch",
2136 	.info = snd_mixer_boolean_info,
2137 	.get = snd_cs46xx_pcm_capture_get,
2138 	.put = snd_cs46xx_pcm_capture_put
2139 },
2140 {
2141 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2142 	.name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
2143 	.info = snd_mixer_boolean_info,
2144 	.get = snd_cs46xx_iec958_get,
2145 	.put = snd_cs46xx_iec958_put,
2146 	.private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
2147 },
2148 {
2149 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2150 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
2151 	.info = snd_mixer_boolean_info,
2152 	.get = snd_cs46xx_iec958_get,
2153 	.put = snd_cs46xx_iec958_put,
2154 	.private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
2155 },
2156 #if 0
2157 /* Input IEC958 volume does not work for the moment. (Benny) */
2158 {
2159 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2160 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
2161 	.info = snd_cs46xx_vol_info,
2162 	.get = snd_cs46xx_vol_iec958_get,
2163 	.put = snd_cs46xx_vol_iec958_put,
2164 	.private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
2165 },
2166 #endif
2167 {
2168 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2169 	.name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2170 	.info =	 snd_cs46xx_spdif_info,
2171 	.get =	 snd_cs46xx_spdif_default_get,
2172 	.put =   snd_cs46xx_spdif_default_put,
2173 },
2174 {
2175 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2176 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2177 	.info =	 snd_cs46xx_spdif_info,
2178         .get =	 snd_cs46xx_spdif_mask_get,
2179 	.access = SNDRV_CTL_ELEM_ACCESS_READ
2180 },
2181 {
2182 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2183 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2184 	.info =	 snd_cs46xx_spdif_info,
2185 	.get =	 snd_cs46xx_spdif_stream_get,
2186 	.put =	 snd_cs46xx_spdif_stream_put
2187 },
2188 
2189 #endif
2190 };
2191 
2192 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2193 /* set primary cs4294 codec into Extended Audio Mode */
2194 static int snd_cs46xx_front_dup_get(struct snd_kcontrol *kcontrol,
2195 				    struct snd_ctl_elem_value *ucontrol)
2196 {
2197 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2198 	unsigned short val;
2199 	val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
2200 	ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
2201 	return 0;
2202 }
2203 
2204 static int snd_cs46xx_front_dup_put(struct snd_kcontrol *kcontrol,
2205 				    struct snd_ctl_elem_value *ucontrol)
2206 {
2207 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2208 	return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2209 				    AC97_CSR_ACMODE, 0x200,
2210 				    ucontrol->value.integer.value[0] ? 0 : 0x200);
2211 }
2212 
2213 static struct snd_kcontrol_new snd_cs46xx_front_dup_ctl = {
2214 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2215 	.name = "Duplicate Front",
2216 	.info = snd_mixer_boolean_info,
2217 	.get = snd_cs46xx_front_dup_get,
2218 	.put = snd_cs46xx_front_dup_put,
2219 };
2220 #endif
2221 
2222 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2223 /* Only available on the Hercules Game Theater XP soundcard */
2224 static struct snd_kcontrol_new snd_hercules_controls[] = {
2225 {
2226 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2227 	.name = "Optical/Coaxial SPDIF Input Switch",
2228 	.info = snd_mixer_boolean_info,
2229 	.get = snd_herc_spdif_select_get,
2230 	.put = snd_herc_spdif_select_put,
2231 },
2232 };
2233 
2234 
2235 static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
2236 {
2237 	unsigned long end_time;
2238 	int err;
2239 
2240 	/* reset to defaults */
2241 	snd_ac97_write(ac97, AC97_RESET, 0);
2242 
2243 	/* set the desired CODEC mode */
2244 	if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
2245 		snd_printdd("cs46xx: CODEC1 mode %04x\n", 0x0);
2246 		snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x0);
2247 	} else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
2248 		snd_printdd("cs46xx: CODEC2 mode %04x\n", 0x3);
2249 		snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x3);
2250 	} else {
2251 		snd_BUG(); /* should never happen ... */
2252 	}
2253 
2254 	udelay(50);
2255 
2256 	/* it's necessary to wait awhile until registers are accessible after RESET */
2257 	/* because the PCM or MASTER volume registers can be modified, */
2258 	/* the REC_GAIN register is used for tests */
2259 	end_time = jiffies + HZ;
2260 	do {
2261 		unsigned short ext_mid;
2262 
2263 		/* use preliminary reads to settle the communication */
2264 		snd_ac97_read(ac97, AC97_RESET);
2265 		snd_ac97_read(ac97, AC97_VENDOR_ID1);
2266 		snd_ac97_read(ac97, AC97_VENDOR_ID2);
2267 		/* modem? */
2268 		ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2269 		if (ext_mid != 0xffff && (ext_mid & 1) != 0)
2270 			return;
2271 
2272 		/* test if we can write to the record gain volume register */
2273 		snd_ac97_write(ac97, AC97_REC_GAIN, 0x8a05);
2274 		if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
2275 			return;
2276 
2277 		msleep(10);
2278 	} while (time_after_eq(end_time, jiffies));
2279 
2280 	snd_printk(KERN_ERR "CS46xx secondary codec doesn't respond!\n");
2281 }
2282 #endif
2283 
2284 static int cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
2285 {
2286 	int idx, err;
2287 	struct snd_ac97_template ac97;
2288 
2289 	memset(&ac97, 0, sizeof(ac97));
2290 	ac97.private_data = chip;
2291 	ac97.private_free = snd_cs46xx_mixer_free_ac97;
2292 	ac97.num = codec;
2293 	if (chip->amplifier_ctrl == amp_voyetra)
2294 		ac97.scaps = AC97_SCAP_INV_EAPD;
2295 
2296 	if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
2297 		snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
2298 		udelay(10);
2299 		if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
2300 			snd_printdd("snd_cs46xx: seconadry codec not present\n");
2301 			return -ENXIO;
2302 		}
2303 	}
2304 
2305 	snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
2306 	for (idx = 0; idx < 100; ++idx) {
2307 		if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
2308 			err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
2309 			return err;
2310 		}
2311 		msleep(10);
2312 	}
2313 	snd_printdd("snd_cs46xx: codec %d detection timeout\n", codec);
2314 	return -ENXIO;
2315 }
2316 
2317 int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
2318 {
2319 	struct snd_card *card = chip->card;
2320 	struct snd_ctl_elem_id id;
2321 	int err;
2322 	unsigned int idx;
2323 	static struct snd_ac97_bus_ops ops = {
2324 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2325 		.reset = snd_cs46xx_codec_reset,
2326 #endif
2327 		.write = snd_cs46xx_ac97_write,
2328 		.read = snd_cs46xx_ac97_read,
2329 	};
2330 
2331 	/* detect primary codec */
2332 	chip->nr_ac97_codecs = 0;
2333 	snd_printdd("snd_cs46xx: detecting primary codec\n");
2334 	if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
2335 		return err;
2336 	chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
2337 
2338 	if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
2339 		return -ENXIO;
2340 	chip->nr_ac97_codecs = 1;
2341 
2342 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2343 	snd_printdd("snd_cs46xx: detecting seconadry codec\n");
2344 	/* try detect a secondary codec */
2345 	if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
2346 		chip->nr_ac97_codecs = 2;
2347 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2348 
2349 	/* add cs4630 mixer controls */
2350 	for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
2351 		struct snd_kcontrol *kctl;
2352 		kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
2353 		if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
2354 			kctl->id.device = spdif_device;
2355 		if ((err = snd_ctl_add(card, kctl)) < 0)
2356 			return err;
2357 	}
2358 
2359 	/* get EAPD mixer switch (for voyetra hack) */
2360 	memset(&id, 0, sizeof(id));
2361 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2362 	strcpy(id.name, "External Amplifier");
2363 	chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
2364 
2365 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2366 	if (chip->nr_ac97_codecs == 1) {
2367 		unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
2368 		if (id2 == 0x592b || id2 == 0x592d) {
2369 			err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
2370 			if (err < 0)
2371 				return err;
2372 			snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2373 					     AC97_CSR_ACMODE, 0x200);
2374 		}
2375 	}
2376 	/* do soundcard specific mixer setup */
2377 	if (chip->mixer_init) {
2378 		snd_printdd ("calling chip->mixer_init(chip);\n");
2379 		chip->mixer_init(chip);
2380 	}
2381 #endif
2382 
2383  	/* turn on amplifier */
2384 	chip->amplifier_ctrl(chip, 1);
2385 
2386 	return 0;
2387 }
2388 
2389 /*
2390  *  RawMIDI interface
2391  */
2392 
2393 static void snd_cs46xx_midi_reset(struct snd_cs46xx *chip)
2394 {
2395 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
2396 	udelay(100);
2397 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2398 }
2399 
2400 static int snd_cs46xx_midi_input_open(struct snd_rawmidi_substream *substream)
2401 {
2402 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2403 
2404 	chip->active_ctrl(chip, 1);
2405 	spin_lock_irq(&chip->reg_lock);
2406 	chip->uartm |= CS46XX_MODE_INPUT;
2407 	chip->midcr |= MIDCR_RXE;
2408 	chip->midi_input = substream;
2409 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2410 		snd_cs46xx_midi_reset(chip);
2411 	} else {
2412 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2413 	}
2414 	spin_unlock_irq(&chip->reg_lock);
2415 	return 0;
2416 }
2417 
2418 static int snd_cs46xx_midi_input_close(struct snd_rawmidi_substream *substream)
2419 {
2420 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2421 
2422 	spin_lock_irq(&chip->reg_lock);
2423 	chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
2424 	chip->midi_input = NULL;
2425 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2426 		snd_cs46xx_midi_reset(chip);
2427 	} else {
2428 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2429 	}
2430 	chip->uartm &= ~CS46XX_MODE_INPUT;
2431 	spin_unlock_irq(&chip->reg_lock);
2432 	chip->active_ctrl(chip, -1);
2433 	return 0;
2434 }
2435 
2436 static int snd_cs46xx_midi_output_open(struct snd_rawmidi_substream *substream)
2437 {
2438 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2439 
2440 	chip->active_ctrl(chip, 1);
2441 
2442 	spin_lock_irq(&chip->reg_lock);
2443 	chip->uartm |= CS46XX_MODE_OUTPUT;
2444 	chip->midcr |= MIDCR_TXE;
2445 	chip->midi_output = substream;
2446 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2447 		snd_cs46xx_midi_reset(chip);
2448 	} else {
2449 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2450 	}
2451 	spin_unlock_irq(&chip->reg_lock);
2452 	return 0;
2453 }
2454 
2455 static int snd_cs46xx_midi_output_close(struct snd_rawmidi_substream *substream)
2456 {
2457 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2458 
2459 	spin_lock_irq(&chip->reg_lock);
2460 	chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
2461 	chip->midi_output = NULL;
2462 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2463 		snd_cs46xx_midi_reset(chip);
2464 	} else {
2465 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2466 	}
2467 	chip->uartm &= ~CS46XX_MODE_OUTPUT;
2468 	spin_unlock_irq(&chip->reg_lock);
2469 	chip->active_ctrl(chip, -1);
2470 	return 0;
2471 }
2472 
2473 static void snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
2474 {
2475 	unsigned long flags;
2476 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2477 
2478 	spin_lock_irqsave(&chip->reg_lock, flags);
2479 	if (up) {
2480 		if ((chip->midcr & MIDCR_RIE) == 0) {
2481 			chip->midcr |= MIDCR_RIE;
2482 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2483 		}
2484 	} else {
2485 		if (chip->midcr & MIDCR_RIE) {
2486 			chip->midcr &= ~MIDCR_RIE;
2487 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2488 		}
2489 	}
2490 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2491 }
2492 
2493 static void snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
2494 {
2495 	unsigned long flags;
2496 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2497 	unsigned char byte;
2498 
2499 	spin_lock_irqsave(&chip->reg_lock, flags);
2500 	if (up) {
2501 		if ((chip->midcr & MIDCR_TIE) == 0) {
2502 			chip->midcr |= MIDCR_TIE;
2503 			/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2504 			while ((chip->midcr & MIDCR_TIE) &&
2505 			       (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
2506 				if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2507 					chip->midcr &= ~MIDCR_TIE;
2508 				} else {
2509 					snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
2510 				}
2511 			}
2512 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2513 		}
2514 	} else {
2515 		if (chip->midcr & MIDCR_TIE) {
2516 			chip->midcr &= ~MIDCR_TIE;
2517 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2518 		}
2519 	}
2520 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2521 }
2522 
2523 static struct snd_rawmidi_ops snd_cs46xx_midi_output =
2524 {
2525 	.open =		snd_cs46xx_midi_output_open,
2526 	.close =	snd_cs46xx_midi_output_close,
2527 	.trigger =	snd_cs46xx_midi_output_trigger,
2528 };
2529 
2530 static struct snd_rawmidi_ops snd_cs46xx_midi_input =
2531 {
2532 	.open =		snd_cs46xx_midi_input_open,
2533 	.close =	snd_cs46xx_midi_input_close,
2534 	.trigger =	snd_cs46xx_midi_input_trigger,
2535 };
2536 
2537 int snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rrawmidi)
2538 {
2539 	struct snd_rawmidi *rmidi;
2540 	int err;
2541 
2542 	if (rrawmidi)
2543 		*rrawmidi = NULL;
2544 	if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
2545 		return err;
2546 	strcpy(rmidi->name, "CS46XX");
2547 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
2548 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
2549 	rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
2550 	rmidi->private_data = chip;
2551 	chip->rmidi = rmidi;
2552 	if (rrawmidi)
2553 		*rrawmidi = NULL;
2554 	return 0;
2555 }
2556 
2557 
2558 /*
2559  * gameport interface
2560  */
2561 
2562 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
2563 
2564 static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
2565 {
2566 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2567 
2568 	if (snd_BUG_ON(!chip))
2569 		return;
2570 	snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
2571 }
2572 
2573 static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
2574 {
2575 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2576 
2577 	if (snd_BUG_ON(!chip))
2578 		return 0;
2579 	return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
2580 }
2581 
2582 static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
2583 {
2584 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2585 	unsigned js1, js2, jst;
2586 
2587 	if (snd_BUG_ON(!chip))
2588 		return 0;
2589 
2590 	js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
2591 	js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
2592 	jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
2593 
2594 	*buttons = (~jst >> 4) & 0x0F;
2595 
2596 	axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
2597 	axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
2598 	axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
2599 	axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
2600 
2601 	for(jst=0;jst<4;++jst)
2602 		if(axes[jst]==0xFFFF) axes[jst] = -1;
2603 	return 0;
2604 }
2605 
2606 static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
2607 {
2608 	switch (mode) {
2609 	case GAMEPORT_MODE_COOKED:
2610 		return 0;
2611 	case GAMEPORT_MODE_RAW:
2612 		return 0;
2613 	default:
2614 		return -1;
2615 	}
2616 	return 0;
2617 }
2618 
2619 int snd_cs46xx_gameport(struct snd_cs46xx *chip)
2620 {
2621 	struct gameport *gp;
2622 
2623 	chip->gameport = gp = gameport_allocate_port();
2624 	if (!gp) {
2625 		printk(KERN_ERR "cs46xx: cannot allocate memory for gameport\n");
2626 		return -ENOMEM;
2627 	}
2628 
2629 	gameport_set_name(gp, "CS46xx Gameport");
2630 	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
2631 	gameport_set_dev_parent(gp, &chip->pci->dev);
2632 	gameport_set_port_data(gp, chip);
2633 
2634 	gp->open = snd_cs46xx_gameport_open;
2635 	gp->read = snd_cs46xx_gameport_read;
2636 	gp->trigger = snd_cs46xx_gameport_trigger;
2637 	gp->cooked_read = snd_cs46xx_gameport_cooked_read;
2638 
2639 	snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
2640 	snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
2641 
2642 	gameport_register_port(gp);
2643 
2644 	return 0;
2645 }
2646 
2647 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip)
2648 {
2649 	if (chip->gameport) {
2650 		gameport_unregister_port(chip->gameport);
2651 		chip->gameport = NULL;
2652 	}
2653 }
2654 #else
2655 int snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
2656 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip) { }
2657 #endif /* CONFIG_GAMEPORT */
2658 
2659 #ifdef CONFIG_PROC_FS
2660 /*
2661  *  proc interface
2662  */
2663 
2664 static ssize_t snd_cs46xx_io_read(struct snd_info_entry *entry,
2665 				  void *file_private_data,
2666 				  struct file *file, char __user *buf,
2667 				  size_t count, loff_t pos)
2668 {
2669 	struct snd_cs46xx_region *region = entry->private_data;
2670 
2671 	if (copy_to_user_fromio(buf, region->remap_addr + pos, count))
2672 		return -EFAULT;
2673 	return count;
2674 }
2675 
2676 static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
2677 	.read = snd_cs46xx_io_read,
2678 };
2679 
2680 static int snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
2681 {
2682 	struct snd_info_entry *entry;
2683 	int idx;
2684 
2685 	for (idx = 0; idx < 5; idx++) {
2686 		struct snd_cs46xx_region *region = &chip->region.idx[idx];
2687 		if (! snd_card_proc_new(card, region->name, &entry)) {
2688 			entry->content = SNDRV_INFO_CONTENT_DATA;
2689 			entry->private_data = chip;
2690 			entry->c.ops = &snd_cs46xx_proc_io_ops;
2691 			entry->size = region->size;
2692 			entry->mode = S_IFREG | S_IRUSR;
2693 		}
2694 	}
2695 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2696 	cs46xx_dsp_proc_init(card, chip);
2697 #endif
2698 	return 0;
2699 }
2700 
2701 static int snd_cs46xx_proc_done(struct snd_cs46xx *chip)
2702 {
2703 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2704 	cs46xx_dsp_proc_done(chip);
2705 #endif
2706 	return 0;
2707 }
2708 #else /* !CONFIG_PROC_FS */
2709 #define snd_cs46xx_proc_init(card, chip)
2710 #define snd_cs46xx_proc_done(chip)
2711 #endif
2712 
2713 /*
2714  * stop the h/w
2715  */
2716 static void snd_cs46xx_hw_stop(struct snd_cs46xx *chip)
2717 {
2718 	unsigned int tmp;
2719 
2720 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
2721 	tmp &= ~0x0000f03f;
2722 	tmp |=  0x00000010;
2723 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt disable */
2724 
2725 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
2726 	tmp &= ~0x0000003f;
2727 	tmp |=  0x00000011;
2728 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt disable */
2729 
2730 	/*
2731          *  Stop playback DMA.
2732 	 */
2733 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
2734 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
2735 
2736 	/*
2737          *  Stop capture DMA.
2738 	 */
2739 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
2740 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
2741 
2742 	/*
2743          *  Reset the processor.
2744          */
2745 	snd_cs46xx_reset(chip);
2746 
2747 	snd_cs46xx_proc_stop(chip);
2748 
2749 	/*
2750 	 *  Power down the PLL.
2751 	 */
2752 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2753 
2754 	/*
2755 	 *  Turn off the Processor by turning off the software clock enable flag in
2756 	 *  the clock control register.
2757 	 */
2758 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
2759 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
2760 }
2761 
2762 
2763 static int snd_cs46xx_free(struct snd_cs46xx *chip)
2764 {
2765 	int idx;
2766 
2767 	if (snd_BUG_ON(!chip))
2768 		return -EINVAL;
2769 
2770 	if (chip->active_ctrl)
2771 		chip->active_ctrl(chip, 1);
2772 
2773 	snd_cs46xx_remove_gameport(chip);
2774 
2775 	if (chip->amplifier_ctrl)
2776 		chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
2777 
2778 	snd_cs46xx_proc_done(chip);
2779 
2780 	if (chip->region.idx[0].resource)
2781 		snd_cs46xx_hw_stop(chip);
2782 
2783 	if (chip->irq >= 0)
2784 		free_irq(chip->irq, chip);
2785 
2786 	if (chip->active_ctrl)
2787 		chip->active_ctrl(chip, -chip->amplifier);
2788 
2789 	for (idx = 0; idx < 5; idx++) {
2790 		struct snd_cs46xx_region *region = &chip->region.idx[idx];
2791 		if (region->remap_addr)
2792 			iounmap(region->remap_addr);
2793 		release_and_free_resource(region->resource);
2794 	}
2795 
2796 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2797 	if (chip->dsp_spos_instance) {
2798 		cs46xx_dsp_spos_destroy(chip);
2799 		chip->dsp_spos_instance = NULL;
2800 	}
2801 #endif
2802 
2803 #ifdef CONFIG_PM_SLEEP
2804 	kfree(chip->saved_regs);
2805 #endif
2806 
2807 	pci_disable_device(chip->pci);
2808 	kfree(chip);
2809 	return 0;
2810 }
2811 
2812 static int snd_cs46xx_dev_free(struct snd_device *device)
2813 {
2814 	struct snd_cs46xx *chip = device->device_data;
2815 	return snd_cs46xx_free(chip);
2816 }
2817 
2818 /*
2819  *  initialize chip
2820  */
2821 static int snd_cs46xx_chip_init(struct snd_cs46xx *chip)
2822 {
2823 	int timeout;
2824 
2825 	/*
2826 	 *  First, blast the clock control register to zero so that the PLL starts
2827          *  out in a known state, and blast the master serial port control register
2828          *  to zero so that the serial ports also start out in a known state.
2829          */
2830         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2831         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
2832 
2833 	/*
2834 	 *  If we are in AC97 mode, then we must set the part to a host controlled
2835          *  AC-link.  Otherwise, we won't be able to bring up the link.
2836          */
2837 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2838 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 |
2839 			   SERACC_TWO_CODECS);	/* 2.00 dual codecs */
2840 	/* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
2841 #else
2842 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
2843 #endif
2844 
2845         /*
2846          *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
2847          *  spec) and then drive it high.  This is done for non AC97 modes since
2848          *  there might be logic external to the CS461x that uses the ARST# line
2849          *  for a reset.
2850          */
2851 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
2852 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2853 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
2854 #endif
2855 	udelay(50);
2856 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
2857 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2858 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
2859 #endif
2860 
2861 	/*
2862 	 *  The first thing we do here is to enable sync generation.  As soon
2863 	 *  as we start receiving bit clock, we'll start producing the SYNC
2864 	 *  signal.
2865 	 */
2866 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
2867 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2868 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
2869 #endif
2870 
2871 	/*
2872 	 *  Now wait for a short while to allow the AC97 part to start
2873 	 *  generating bit clock (so we don't try to start the PLL without an
2874 	 *  input clock).
2875 	 */
2876 	mdelay(10);
2877 
2878 	/*
2879 	 *  Set the serial port timing configuration, so that
2880 	 *  the clock control circuit gets its clock from the correct place.
2881 	 */
2882 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
2883 
2884 	/*
2885 	 *  Write the selected clock control setup to the hardware.  Do not turn on
2886 	 *  SWCE yet (if requested), so that the devices clocked by the output of
2887 	 *  PLL are not clocked until the PLL is stable.
2888 	 */
2889 	snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
2890 	snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
2891 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
2892 
2893 	/*
2894 	 *  Power up the PLL.
2895 	 */
2896 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
2897 
2898 	/*
2899          *  Wait until the PLL has stabilized.
2900 	 */
2901 	msleep(100);
2902 
2903 	/*
2904 	 *  Turn on clocking of the core so that we can setup the serial ports.
2905 	 */
2906 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
2907 
2908 	/*
2909 	 * Enable FIFO  Host Bypass
2910 	 */
2911 	snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
2912 
2913 	/*
2914 	 *  Fill the serial port FIFOs with silence.
2915 	 */
2916 	snd_cs46xx_clear_serial_FIFOs(chip);
2917 
2918 	/*
2919 	 *  Set the serial port FIFO pointer to the first sample in the FIFO.
2920 	 */
2921 	/* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
2922 
2923 	/*
2924 	 *  Write the serial port configuration to the part.  The master
2925 	 *  enable bit is not set until all other values have been written.
2926 	 */
2927 	snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
2928 	snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
2929 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
2930 
2931 
2932 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2933 	snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
2934 	snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
2935 	snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
2936 	snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
2937 	snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
2938 #endif
2939 
2940 	mdelay(5);
2941 
2942 
2943 	/*
2944 	 * Wait for the codec ready signal from the AC97 codec.
2945 	 */
2946 	timeout = 150;
2947 	while (timeout-- > 0) {
2948 		/*
2949 		 *  Read the AC97 status register to see if we've seen a CODEC READY
2950 		 *  signal from the AC97 codec.
2951 		 */
2952 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
2953 			goto ok1;
2954 		msleep(10);
2955 	}
2956 
2957 
2958 	snd_printk(KERN_ERR "create - never read codec ready from AC'97\n");
2959 	snd_printk(KERN_ERR "it is not probably bug, try to use CS4236 driver\n");
2960 	return -EIO;
2961  ok1:
2962 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2963 	{
2964 		int count;
2965 		for (count = 0; count < 150; count++) {
2966 			/* First, we want to wait for a short time. */
2967 			udelay(25);
2968 
2969 			if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
2970 				break;
2971 		}
2972 
2973 		/*
2974 		 *  Make sure CODEC is READY.
2975 		 */
2976 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
2977 			snd_printdd("cs46xx: never read card ready from secondary AC'97\n");
2978 	}
2979 #endif
2980 
2981 	/*
2982 	 *  Assert the vaid frame signal so that we can start sending commands
2983 	 *  to the AC97 codec.
2984 	 */
2985 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
2986 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2987 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
2988 #endif
2989 
2990 
2991 	/*
2992 	 *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
2993 	 *  the codec is pumping ADC data across the AC-link.
2994 	 */
2995 	timeout = 150;
2996 	while (timeout-- > 0) {
2997 		/*
2998 		 *  Read the input slot valid register and see if input slots 3 and
2999 		 *  4 are valid yet.
3000 		 */
3001 		if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
3002 			goto ok2;
3003 		msleep(10);
3004 	}
3005 
3006 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3007 	snd_printk(KERN_ERR "create - never read ISV3 & ISV4 from AC'97\n");
3008 	return -EIO;
3009 #else
3010 	/* This may happen on a cold boot with a Terratec SiXPack 5.1.
3011 	   Reloading the driver may help, if there's other soundcards
3012 	   with the same problem I would like to know. (Benny) */
3013 
3014 	snd_printk(KERN_ERR "ERROR: snd-cs46xx: never read ISV3 & ISV4 from AC'97\n");
3015 	snd_printk(KERN_ERR "       Try reloading the ALSA driver, if you find something\n");
3016         snd_printk(KERN_ERR "       broken or not working on your soundcard upon\n");
3017 	snd_printk(KERN_ERR "       this message please report to alsa-devel@alsa-project.org\n");
3018 
3019 	return -EIO;
3020 #endif
3021  ok2:
3022 
3023 	/*
3024 	 *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
3025 	 *  commense the transfer of digital audio data to the AC97 codec.
3026 	 */
3027 
3028 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
3029 
3030 
3031 	/*
3032 	 *  Power down the DAC and ADC.  We will power them up (if) when we need
3033 	 *  them.
3034 	 */
3035 	/* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
3036 
3037 	/*
3038 	 *  Turn off the Processor by turning off the software clock enable flag in
3039 	 *  the clock control register.
3040 	 */
3041 	/* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
3042 	/* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
3043 
3044 	return 0;
3045 }
3046 
3047 /*
3048  *  start and load DSP
3049  */
3050 
3051 static void cs46xx_enable_stream_irqs(struct snd_cs46xx *chip)
3052 {
3053 	unsigned int tmp;
3054 
3055 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
3056 
3057 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
3058 	tmp &= ~0x0000f03f;
3059 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt enable */
3060 
3061 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
3062 	tmp &= ~0x0000003f;
3063 	tmp |=  0x00000001;
3064 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt enable */
3065 }
3066 
3067 int snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
3068 {
3069 	unsigned int tmp;
3070 	/*
3071 	 *  Reset the processor.
3072 	 */
3073 	snd_cs46xx_reset(chip);
3074 	/*
3075 	 *  Download the image to the processor.
3076 	 */
3077 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3078 #if 0
3079 	if (cs46xx_dsp_load_module(chip, &cwcemb80_module) < 0) {
3080 		snd_printk(KERN_ERR "image download error\n");
3081 		return -EIO;
3082 	}
3083 #endif
3084 
3085 	if (cs46xx_dsp_load_module(chip, &cwc4630_module) < 0) {
3086 		snd_printk(KERN_ERR "image download error [cwc4630]\n");
3087 		return -EIO;
3088 	}
3089 
3090 	if (cs46xx_dsp_load_module(chip, &cwcasync_module) < 0) {
3091 		snd_printk(KERN_ERR "image download error [cwcasync]\n");
3092 		return -EIO;
3093 	}
3094 
3095 	if (cs46xx_dsp_load_module(chip, &cwcsnoop_module) < 0) {
3096 		snd_printk(KERN_ERR "image download error [cwcsnoop]\n");
3097 		return -EIO;
3098 	}
3099 
3100 	if (cs46xx_dsp_load_module(chip, &cwcbinhack_module) < 0) {
3101 		snd_printk(KERN_ERR "image download error [cwcbinhack]\n");
3102 		return -EIO;
3103 	}
3104 
3105 	if (cs46xx_dsp_load_module(chip, &cwcdma_module) < 0) {
3106 		snd_printk(KERN_ERR "image download error [cwcdma]\n");
3107 		return -EIO;
3108 	}
3109 
3110 	if (cs46xx_dsp_scb_and_task_init(chip) < 0)
3111 		return -EIO;
3112 #else
3113 	/* old image */
3114 	if (snd_cs46xx_download_image(chip) < 0) {
3115 		snd_printk(KERN_ERR "image download error\n");
3116 		return -EIO;
3117 	}
3118 
3119 	/*
3120          *  Stop playback DMA.
3121 	 */
3122 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
3123 	chip->play_ctl = tmp & 0xffff0000;
3124 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
3125 #endif
3126 
3127 	/*
3128          *  Stop capture DMA.
3129 	 */
3130 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3131 	chip->capt.ctl = tmp & 0x0000ffff;
3132 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3133 
3134 	mdelay(5);
3135 
3136 	snd_cs46xx_set_play_sample_rate(chip, 8000);
3137 	snd_cs46xx_set_capture_sample_rate(chip, 8000);
3138 
3139 	snd_cs46xx_proc_start(chip);
3140 
3141 	cs46xx_enable_stream_irqs(chip);
3142 
3143 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3144 	/* set the attenuation to 0dB */
3145 	snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
3146 	snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
3147 #endif
3148 
3149 	return 0;
3150 }
3151 
3152 
3153 /*
3154  *	AMP control - null AMP
3155  */
3156 
3157 static void amp_none(struct snd_cs46xx *chip, int change)
3158 {
3159 }
3160 
3161 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3162 static int voyetra_setup_eapd_slot(struct snd_cs46xx *chip)
3163 {
3164 
3165 	u32 idx, valid_slots,tmp,powerdown = 0;
3166 	u16 modem_power,pin_config,logic_type;
3167 
3168 	snd_printdd ("cs46xx: cs46xx_setup_eapd_slot()+\n");
3169 
3170 	/*
3171 	 *  See if the devices are powered down.  If so, we must power them up first
3172 	 *  or they will not respond.
3173 	 */
3174 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
3175 
3176 	if (!(tmp & CLKCR1_SWCE)) {
3177 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
3178 		powerdown = 1;
3179 	}
3180 
3181 	/*
3182 	 * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
3183 	 * stuff.
3184 	 */
3185 	if(chip->nr_ac97_codecs != 2) {
3186 		snd_printk (KERN_ERR "cs46xx: cs46xx_setup_eapd_slot() - no secondary codec configured\n");
3187 		return -EINVAL;
3188 	}
3189 
3190 	modem_power = snd_cs46xx_codec_read (chip,
3191 					     AC97_EXTENDED_MSTATUS,
3192 					     CS46XX_SECONDARY_CODEC_INDEX);
3193 	modem_power &=0xFEFF;
3194 
3195 	snd_cs46xx_codec_write(chip,
3196 			       AC97_EXTENDED_MSTATUS, modem_power,
3197 			       CS46XX_SECONDARY_CODEC_INDEX);
3198 
3199 	/*
3200 	 * Set GPIO pin's 7 and 8 so that they are configured for output.
3201 	 */
3202 	pin_config = snd_cs46xx_codec_read (chip,
3203 					    AC97_GPIO_CFG,
3204 					    CS46XX_SECONDARY_CODEC_INDEX);
3205 	pin_config &=0x27F;
3206 
3207 	snd_cs46xx_codec_write(chip,
3208 			       AC97_GPIO_CFG, pin_config,
3209 			       CS46XX_SECONDARY_CODEC_INDEX);
3210 
3211 	/*
3212 	 * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
3213 	 */
3214 
3215 	logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
3216 					   CS46XX_SECONDARY_CODEC_INDEX);
3217 	logic_type &=0x27F;
3218 
3219 	snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
3220 				CS46XX_SECONDARY_CODEC_INDEX);
3221 
3222 	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
3223 	valid_slots |= 0x200;
3224 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
3225 
3226 	if ( cs46xx_wait_for_fifo(chip,1) ) {
3227 	  snd_printdd("FIFO is busy\n");
3228 
3229 	  return -EINVAL;
3230 	}
3231 
3232 	/*
3233 	 * Fill slots 12 with the correct value for the GPIO pins.
3234 	 */
3235 	for(idx = 0x90; idx <= 0x9F; idx++) {
3236 		/*
3237 		 * Initialize the fifo so that bits 7 and 8 are on.
3238 		 *
3239 		 * Remember that the GPIO pins in bonzo are shifted by 4 bits to
3240 		 * the left.  0x1800 corresponds to bits 7 and 8.
3241 		 */
3242 		snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
3243 
3244 		/*
3245 		 * Wait for command to complete
3246 		 */
3247 		if ( cs46xx_wait_for_fifo(chip,200) ) {
3248 			snd_printdd("failed waiting for FIFO at addr (%02X)\n",idx);
3249 
3250 			return -EINVAL;
3251 		}
3252 
3253 		/*
3254 		 * Write the serial port FIFO index.
3255 		 */
3256 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
3257 
3258 		/*
3259 		 * Tell the serial port to load the new value into the FIFO location.
3260 		 */
3261 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
3262 	}
3263 
3264 	/* wait for last command to complete */
3265 	cs46xx_wait_for_fifo(chip,200);
3266 
3267 	/*
3268 	 *  Now, if we powered up the devices, then power them back down again.
3269 	 *  This is kinda ugly, but should never happen.
3270 	 */
3271 	if (powerdown)
3272 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
3273 
3274 	return 0;
3275 }
3276 #endif
3277 
3278 /*
3279  *	Crystal EAPD mode
3280  */
3281 
3282 static void amp_voyetra(struct snd_cs46xx *chip, int change)
3283 {
3284 	/* Manage the EAPD bit on the Crystal 4297
3285 	   and the Analog AD1885 */
3286 
3287 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3288 	int old = chip->amplifier;
3289 #endif
3290 	int oval, val;
3291 
3292 	chip->amplifier += change;
3293 	oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
3294 				     CS46XX_PRIMARY_CODEC_INDEX);
3295 	val = oval;
3296 	if (chip->amplifier) {
3297 		/* Turn the EAPD amp on */
3298 		val |= 0x8000;
3299 	} else {
3300 		/* Turn the EAPD amp off */
3301 		val &= ~0x8000;
3302 	}
3303 	if (val != oval) {
3304 		snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
3305 				       CS46XX_PRIMARY_CODEC_INDEX);
3306 		if (chip->eapd_switch)
3307 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3308 				       &chip->eapd_switch->id);
3309 	}
3310 
3311 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3312 	if (chip->amplifier && !old) {
3313 		voyetra_setup_eapd_slot(chip);
3314 	}
3315 #endif
3316 }
3317 
3318 static void hercules_init(struct snd_cs46xx *chip)
3319 {
3320 	/* default: AMP off, and SPDIF input optical */
3321 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3322 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3323 }
3324 
3325 
3326 /*
3327  *	Game Theatre XP card - EGPIO[2] is used to enable the external amp.
3328  */
3329 static void amp_hercules(struct snd_cs46xx *chip, int change)
3330 {
3331 	int old = chip->amplifier;
3332 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
3333 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
3334 
3335 	chip->amplifier += change;
3336 	if (chip->amplifier && !old) {
3337 		snd_printdd ("Hercules amplifier ON\n");
3338 
3339 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
3340 				   EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
3341 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
3342 				   EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
3343 	} else if (old && !chip->amplifier) {
3344 		snd_printdd ("Hercules amplifier OFF\n");
3345 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
3346 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
3347 	}
3348 }
3349 
3350 static void voyetra_mixer_init (struct snd_cs46xx *chip)
3351 {
3352 	snd_printdd ("initializing Voyetra mixer\n");
3353 
3354 	/* Enable SPDIF out */
3355 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3356 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3357 }
3358 
3359 static void hercules_mixer_init (struct snd_cs46xx *chip)
3360 {
3361 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3362 	unsigned int idx;
3363 	int err;
3364 	struct snd_card *card = chip->card;
3365 #endif
3366 
3367 	/* set EGPIO to default */
3368 	hercules_init(chip);
3369 
3370 	snd_printdd ("initializing Hercules mixer\n");
3371 
3372 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3373 	if (chip->in_suspend)
3374 		return;
3375 
3376 	for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
3377 		struct snd_kcontrol *kctl;
3378 
3379 		kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
3380 		if ((err = snd_ctl_add(card, kctl)) < 0) {
3381 			printk (KERN_ERR "cs46xx: failed to initialize Hercules mixer (%d)\n",err);
3382 			break;
3383 		}
3384 	}
3385 #endif
3386 }
3387 
3388 
3389 #if 0
3390 /*
3391  *	Untested
3392  */
3393 
3394 static void amp_voyetra_4294(struct snd_cs46xx *chip, int change)
3395 {
3396 	chip->amplifier += change;
3397 
3398 	if (chip->amplifier) {
3399 		/* Switch the GPIO pins 7 and 8 to open drain */
3400 		snd_cs46xx_codec_write(chip, 0x4C,
3401 				       snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
3402 		snd_cs46xx_codec_write(chip, 0x4E,
3403 				       snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
3404 		/* Now wake the AMP (this might be backwards) */
3405 		snd_cs46xx_codec_write(chip, 0x54,
3406 				       snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
3407 	} else {
3408 		snd_cs46xx_codec_write(chip, 0x54,
3409 				       snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
3410 	}
3411 }
3412 #endif
3413 
3414 
3415 /*
3416  *	Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
3417  *	whenever we need to beat on the chip.
3418  *
3419  *	The original idea and code for this hack comes from David Kaiser at
3420  *	Linuxcare. Perhaps one day Crystal will document their chips well
3421  *	enough to make them useful.
3422  */
3423 
3424 static void clkrun_hack(struct snd_cs46xx *chip, int change)
3425 {
3426 	u16 control, nval;
3427 
3428 	if (!chip->acpi_port)
3429 		return;
3430 
3431 	chip->amplifier += change;
3432 
3433 	/* Read ACPI port */
3434 	nval = control = inw(chip->acpi_port + 0x10);
3435 
3436 	/* Flip CLKRUN off while running */
3437 	if (! chip->amplifier)
3438 		nval |= 0x2000;
3439 	else
3440 		nval &= ~0x2000;
3441 	if (nval != control)
3442 		outw(nval, chip->acpi_port + 0x10);
3443 }
3444 
3445 
3446 /*
3447  * detect intel piix4
3448  */
3449 static void clkrun_init(struct snd_cs46xx *chip)
3450 {
3451 	struct pci_dev *pdev;
3452 	u8 pp;
3453 
3454 	chip->acpi_port = 0;
3455 
3456 	pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
3457 		PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3458 	if (pdev == NULL)
3459 		return;		/* Not a thinkpad thats for sure */
3460 
3461 	/* Find the control port */
3462 	pci_read_config_byte(pdev, 0x41, &pp);
3463 	chip->acpi_port = pp << 8;
3464 	pci_dev_put(pdev);
3465 }
3466 
3467 
3468 /*
3469  * Card subid table
3470  */
3471 
3472 struct cs_card_type
3473 {
3474 	u16 vendor;
3475 	u16 id;
3476 	char *name;
3477 	void (*init)(struct snd_cs46xx *);
3478 	void (*amp)(struct snd_cs46xx *, int);
3479 	void (*active)(struct snd_cs46xx *, int);
3480 	void (*mixer_init)(struct snd_cs46xx *);
3481 };
3482 
3483 static struct cs_card_type cards[] = {
3484 	{
3485 		.vendor = 0x1489,
3486 		.id = 0x7001,
3487 		.name = "Genius Soundmaker 128 value",
3488 		/* nothing special */
3489 	},
3490 	{
3491 		.vendor = 0x5053,
3492 		.id = 0x3357,
3493 		.name = "Voyetra",
3494 		.amp = amp_voyetra,
3495 		.mixer_init = voyetra_mixer_init,
3496 	},
3497 	{
3498 		.vendor = 0x1071,
3499 		.id = 0x6003,
3500 		.name = "Mitac MI6020/21",
3501 		.amp = amp_voyetra,
3502 	},
3503 	/* Hercules Game Theatre XP */
3504 	{
3505 		.vendor = 0x14af, /* Guillemot Corporation */
3506 		.id = 0x0050,
3507 		.name = "Hercules Game Theatre XP",
3508 		.amp = amp_hercules,
3509 		.mixer_init = hercules_mixer_init,
3510 	},
3511 	{
3512 		.vendor = 0x1681,
3513 		.id = 0x0050,
3514 		.name = "Hercules Game Theatre XP",
3515 		.amp = amp_hercules,
3516 		.mixer_init = hercules_mixer_init,
3517 	},
3518 	{
3519 		.vendor = 0x1681,
3520 		.id = 0x0051,
3521 		.name = "Hercules Game Theatre XP",
3522 		.amp = amp_hercules,
3523 		.mixer_init = hercules_mixer_init,
3524 
3525 	},
3526 	{
3527 		.vendor = 0x1681,
3528 		.id = 0x0052,
3529 		.name = "Hercules Game Theatre XP",
3530 		.amp = amp_hercules,
3531 		.mixer_init = hercules_mixer_init,
3532 	},
3533 	{
3534 		.vendor = 0x1681,
3535 		.id = 0x0053,
3536 		.name = "Hercules Game Theatre XP",
3537 		.amp = amp_hercules,
3538 		.mixer_init = hercules_mixer_init,
3539 	},
3540 	{
3541 		.vendor = 0x1681,
3542 		.id = 0x0054,
3543 		.name = "Hercules Game Theatre XP",
3544 		.amp = amp_hercules,
3545 		.mixer_init = hercules_mixer_init,
3546 	},
3547 	/* Herculess Fortissimo */
3548 	{
3549 		.vendor = 0x1681,
3550 		.id = 0xa010,
3551 		.name = "Hercules Gamesurround Fortissimo II",
3552 	},
3553 	{
3554 		.vendor = 0x1681,
3555 		.id = 0xa011,
3556 		.name = "Hercules Gamesurround Fortissimo III 7.1",
3557 	},
3558 	/* Teratec */
3559 	{
3560 		.vendor = 0x153b,
3561 		.id = 0x112e,
3562 		.name = "Terratec DMX XFire 1024",
3563 	},
3564 	{
3565 		.vendor = 0x153b,
3566 		.id = 0x1136,
3567 		.name = "Terratec SiXPack 5.1",
3568 	},
3569 	/* Not sure if the 570 needs the clkrun hack */
3570 	{
3571 		.vendor = PCI_VENDOR_ID_IBM,
3572 		.id = 0x0132,
3573 		.name = "Thinkpad 570",
3574 		.init = clkrun_init,
3575 		.active = clkrun_hack,
3576 	},
3577 	{
3578 		.vendor = PCI_VENDOR_ID_IBM,
3579 		.id = 0x0153,
3580 		.name = "Thinkpad 600X/A20/T20",
3581 		.init = clkrun_init,
3582 		.active = clkrun_hack,
3583 	},
3584 	{
3585 		.vendor = PCI_VENDOR_ID_IBM,
3586 		.id = 0x1010,
3587 		.name = "Thinkpad 600E (unsupported)",
3588 	},
3589 	{} /* terminator */
3590 };
3591 
3592 
3593 /*
3594  * APM support
3595  */
3596 #ifdef CONFIG_PM_SLEEP
3597 static unsigned int saved_regs[] = {
3598 	BA0_ACOSV,
3599 	/*BA0_ASER_FADDR,*/
3600 	BA0_ASER_MASTER,
3601 	BA1_PVOL,
3602 	BA1_CVOL,
3603 };
3604 
3605 static int snd_cs46xx_suspend(struct device *dev)
3606 {
3607 	struct pci_dev *pci = to_pci_dev(dev);
3608 	struct snd_card *card = dev_get_drvdata(dev);
3609 	struct snd_cs46xx *chip = card->private_data;
3610 	int i, amp_saved;
3611 
3612 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3613 	chip->in_suspend = 1;
3614 	snd_pcm_suspend_all(chip->pcm);
3615 	// chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
3616 	// chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
3617 
3618 	snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3619 	snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3620 
3621 	/* save some registers */
3622 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3623 		chip->saved_regs[i] = snd_cs46xx_peekBA0(chip, saved_regs[i]);
3624 
3625 	amp_saved = chip->amplifier;
3626 	/* turn off amp */
3627 	chip->amplifier_ctrl(chip, -chip->amplifier);
3628 	snd_cs46xx_hw_stop(chip);
3629 	/* disable CLKRUN */
3630 	chip->active_ctrl(chip, -chip->amplifier);
3631 	chip->amplifier = amp_saved; /* restore the status */
3632 
3633 	pci_disable_device(pci);
3634 	pci_save_state(pci);
3635 	pci_set_power_state(pci, PCI_D3hot);
3636 	return 0;
3637 }
3638 
3639 static int snd_cs46xx_resume(struct device *dev)
3640 {
3641 	struct pci_dev *pci = to_pci_dev(dev);
3642 	struct snd_card *card = dev_get_drvdata(dev);
3643 	struct snd_cs46xx *chip = card->private_data;
3644 	int amp_saved;
3645 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3646 	int i;
3647 #endif
3648 	unsigned int tmp;
3649 
3650 	pci_set_power_state(pci, PCI_D0);
3651 	pci_restore_state(pci);
3652 	if (pci_enable_device(pci) < 0) {
3653 		printk(KERN_ERR "cs46xx: pci_enable_device failed, "
3654 		       "disabling device\n");
3655 		snd_card_disconnect(card);
3656 		return -EIO;
3657 	}
3658 	pci_set_master(pci);
3659 
3660 	amp_saved = chip->amplifier;
3661 	chip->amplifier = 0;
3662 	chip->active_ctrl(chip, 1); /* force to on */
3663 
3664 	snd_cs46xx_chip_init(chip);
3665 
3666 	snd_cs46xx_reset(chip);
3667 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3668 	cs46xx_dsp_resume(chip);
3669 	/* restore some registers */
3670 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3671 		snd_cs46xx_pokeBA0(chip, saved_regs[i], chip->saved_regs[i]);
3672 #else
3673 	snd_cs46xx_download_image(chip);
3674 #endif
3675 
3676 #if 0
3677 	snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE,
3678 			       chip->ac97_general_purpose);
3679 	snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL,
3680 			       chip->ac97_powerdown);
3681 	mdelay(10);
3682 	snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
3683 			       chip->ac97_powerdown);
3684 	mdelay(5);
3685 #endif
3686 
3687 	snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3688 	snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3689 
3690 	/*
3691          *  Stop capture DMA.
3692 	 */
3693 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3694 	chip->capt.ctl = tmp & 0x0000ffff;
3695 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3696 
3697 	mdelay(5);
3698 
3699 	/* reset playback/capture */
3700 	snd_cs46xx_set_play_sample_rate(chip, 8000);
3701 	snd_cs46xx_set_capture_sample_rate(chip, 8000);
3702 	snd_cs46xx_proc_start(chip);
3703 
3704 	cs46xx_enable_stream_irqs(chip);
3705 
3706 	if (amp_saved)
3707 		chip->amplifier_ctrl(chip, 1); /* turn amp on */
3708 	else
3709 		chip->active_ctrl(chip, -1); /* disable CLKRUN */
3710 	chip->amplifier = amp_saved;
3711 	chip->in_suspend = 0;
3712 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3713 	return 0;
3714 }
3715 
3716 SIMPLE_DEV_PM_OPS(snd_cs46xx_pm, snd_cs46xx_suspend, snd_cs46xx_resume);
3717 #endif /* CONFIG_PM_SLEEP */
3718 
3719 
3720 /*
3721  */
3722 
3723 int snd_cs46xx_create(struct snd_card *card,
3724 		      struct pci_dev *pci,
3725 		      int external_amp, int thinkpad,
3726 		      struct snd_cs46xx **rchip)
3727 {
3728 	struct snd_cs46xx *chip;
3729 	int err, idx;
3730 	struct snd_cs46xx_region *region;
3731 	struct cs_card_type *cp;
3732 	u16 ss_card, ss_vendor;
3733 	static struct snd_device_ops ops = {
3734 		.dev_free =	snd_cs46xx_dev_free,
3735 	};
3736 
3737 	*rchip = NULL;
3738 
3739 	/* enable PCI device */
3740 	if ((err = pci_enable_device(pci)) < 0)
3741 		return err;
3742 
3743 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3744 	if (chip == NULL) {
3745 		pci_disable_device(pci);
3746 		return -ENOMEM;
3747 	}
3748 	spin_lock_init(&chip->reg_lock);
3749 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3750 	mutex_init(&chip->spos_mutex);
3751 #endif
3752 	chip->card = card;
3753 	chip->pci = pci;
3754 	chip->irq = -1;
3755 	chip->ba0_addr = pci_resource_start(pci, 0);
3756 	chip->ba1_addr = pci_resource_start(pci, 1);
3757 	if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
3758 	    chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
3759 	    	snd_printk(KERN_ERR "wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n",
3760 			   chip->ba0_addr, chip->ba1_addr);
3761 	    	snd_cs46xx_free(chip);
3762 	    	return -ENOMEM;
3763 	}
3764 
3765 	region = &chip->region.name.ba0;
3766 	strcpy(region->name, "CS46xx_BA0");
3767 	region->base = chip->ba0_addr;
3768 	region->size = CS46XX_BA0_SIZE;
3769 
3770 	region = &chip->region.name.data0;
3771 	strcpy(region->name, "CS46xx_BA1_data0");
3772 	region->base = chip->ba1_addr + BA1_SP_DMEM0;
3773 	region->size = CS46XX_BA1_DATA0_SIZE;
3774 
3775 	region = &chip->region.name.data1;
3776 	strcpy(region->name, "CS46xx_BA1_data1");
3777 	region->base = chip->ba1_addr + BA1_SP_DMEM1;
3778 	region->size = CS46XX_BA1_DATA1_SIZE;
3779 
3780 	region = &chip->region.name.pmem;
3781 	strcpy(region->name, "CS46xx_BA1_pmem");
3782 	region->base = chip->ba1_addr + BA1_SP_PMEM;
3783 	region->size = CS46XX_BA1_PRG_SIZE;
3784 
3785 	region = &chip->region.name.reg;
3786 	strcpy(region->name, "CS46xx_BA1_reg");
3787 	region->base = chip->ba1_addr + BA1_SP_REG;
3788 	region->size = CS46XX_BA1_REG_SIZE;
3789 
3790 	/* set up amp and clkrun hack */
3791 	pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
3792 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
3793 
3794 	for (cp = &cards[0]; cp->name; cp++) {
3795 		if (cp->vendor == ss_vendor && cp->id == ss_card) {
3796 			snd_printdd ("hack for %s enabled\n", cp->name);
3797 
3798 			chip->amplifier_ctrl = cp->amp;
3799 			chip->active_ctrl = cp->active;
3800 			chip->mixer_init = cp->mixer_init;
3801 
3802 			if (cp->init)
3803 				cp->init(chip);
3804 			break;
3805 		}
3806 	}
3807 
3808 	if (external_amp) {
3809 		snd_printk(KERN_INFO "Crystal EAPD support forced on.\n");
3810 		chip->amplifier_ctrl = amp_voyetra;
3811 	}
3812 
3813 	if (thinkpad) {
3814 		snd_printk(KERN_INFO "Activating CLKRUN hack for Thinkpad.\n");
3815 		chip->active_ctrl = clkrun_hack;
3816 		clkrun_init(chip);
3817 	}
3818 
3819 	if (chip->amplifier_ctrl == NULL)
3820 		chip->amplifier_ctrl = amp_none;
3821 	if (chip->active_ctrl == NULL)
3822 		chip->active_ctrl = amp_none;
3823 
3824 	chip->active_ctrl(chip, 1); /* enable CLKRUN */
3825 
3826 	pci_set_master(pci);
3827 
3828 	for (idx = 0; idx < 5; idx++) {
3829 		region = &chip->region.idx[idx];
3830 		if ((region->resource = request_mem_region(region->base, region->size,
3831 							   region->name)) == NULL) {
3832 			snd_printk(KERN_ERR "unable to request memory region 0x%lx-0x%lx\n",
3833 				   region->base, region->base + region->size - 1);
3834 			snd_cs46xx_free(chip);
3835 			return -EBUSY;
3836 		}
3837 		region->remap_addr = ioremap_nocache(region->base, region->size);
3838 		if (region->remap_addr == NULL) {
3839 			snd_printk(KERN_ERR "%s ioremap problem\n", region->name);
3840 			snd_cs46xx_free(chip);
3841 			return -ENOMEM;
3842 		}
3843 	}
3844 
3845 	if (request_irq(pci->irq, snd_cs46xx_interrupt, IRQF_SHARED,
3846 			KBUILD_MODNAME, chip)) {
3847 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3848 		snd_cs46xx_free(chip);
3849 		return -EBUSY;
3850 	}
3851 	chip->irq = pci->irq;
3852 
3853 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3854 	chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
3855 	if (chip->dsp_spos_instance == NULL) {
3856 		snd_cs46xx_free(chip);
3857 		return -ENOMEM;
3858 	}
3859 #endif
3860 
3861 	err = snd_cs46xx_chip_init(chip);
3862 	if (err < 0) {
3863 		snd_cs46xx_free(chip);
3864 		return err;
3865 	}
3866 
3867 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3868 		snd_cs46xx_free(chip);
3869 		return err;
3870 	}
3871 
3872 	snd_cs46xx_proc_init(card, chip);
3873 
3874 #ifdef CONFIG_PM_SLEEP
3875 	chip->saved_regs = kmalloc(sizeof(*chip->saved_regs) *
3876 				   ARRAY_SIZE(saved_regs), GFP_KERNEL);
3877 	if (!chip->saved_regs) {
3878 		snd_cs46xx_free(chip);
3879 		return -ENOMEM;
3880 	}
3881 #endif
3882 
3883 	chip->active_ctrl(chip, -1); /* disable CLKRUN */
3884 
3885 	snd_card_set_dev(card, &pci->dev);
3886 
3887 	*rchip = chip;
3888 	return 0;
3889 }
3890