xref: /linux/sound/pci/cs46xx/cs46xx_lib.c (revision 54a8a2220c936a47840c9a3d74910c5a56fae2ed)
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@suse.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 controll.
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 <sound/driver.h>
49 #include <linux/delay.h>
50 #include <linux/pci.h>
51 #include <linux/pm.h>
52 #include <linux/init.h>
53 #include <linux/interrupt.h>
54 #include <linux/slab.h>
55 #include <linux/gameport.h>
56 
57 #include <sound/core.h>
58 #include <sound/control.h>
59 #include <sound/info.h>
60 #include <sound/pcm.h>
61 #include <sound/pcm_params.h>
62 #include <sound/cs46xx.h>
63 
64 #include <asm/io.h>
65 
66 #include "cs46xx_lib.h"
67 #include "dsp_spos.h"
68 
69 static void amp_voyetra(cs46xx_t *chip, int change);
70 
71 #ifdef CONFIG_SND_CS46XX_NEW_DSP
72 static snd_pcm_ops_t snd_cs46xx_playback_rear_ops;
73 static snd_pcm_ops_t snd_cs46xx_playback_indirect_rear_ops;
74 static snd_pcm_ops_t snd_cs46xx_playback_clfe_ops;
75 static snd_pcm_ops_t snd_cs46xx_playback_indirect_clfe_ops;
76 static snd_pcm_ops_t snd_cs46xx_playback_iec958_ops;
77 static snd_pcm_ops_t snd_cs46xx_playback_indirect_iec958_ops;
78 #endif
79 
80 static snd_pcm_ops_t snd_cs46xx_playback_ops;
81 static snd_pcm_ops_t snd_cs46xx_playback_indirect_ops;
82 static snd_pcm_ops_t snd_cs46xx_capture_ops;
83 static snd_pcm_ops_t snd_cs46xx_capture_indirect_ops;
84 
85 static unsigned short snd_cs46xx_codec_read(cs46xx_t *chip,
86 					    unsigned short reg,
87 					    int codec_index)
88 {
89 	int count;
90 	unsigned short result,tmp;
91 	u32 offset = 0;
92 	snd_assert ( (codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
93 		     (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
94 		     return -EINVAL);
95 
96 	chip->active_ctrl(chip, 1);
97 
98 	if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
99 		offset = CS46XX_SECONDARY_CODEC_OFFSET;
100 
101 	/*
102 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
103 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
104 	 *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
105 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
106 	 *  5. if DCV not cleared, break and return error
107 	 *  6. Read ACSTS = Status Register = 464h, check VSTS bit
108 	 */
109 
110 	snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
111 
112 	tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
113 	if ((tmp & ACCTL_VFRM) == 0) {
114 		snd_printk(KERN_WARNING  "cs46xx: ACCTL_VFRM not set 0x%x\n",tmp);
115 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
116 		msleep(50);
117 		tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
118 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
119 
120 	}
121 
122 	/*
123 	 *  Setup the AC97 control registers on the CS461x to send the
124 	 *  appropriate command to the AC97 to perform the read.
125 	 *  ACCAD = Command Address Register = 46Ch
126 	 *  ACCDA = Command Data Register = 470h
127 	 *  ACCTL = Control Register = 460h
128 	 *  set DCV - will clear when process completed
129 	 *  set CRW - Read command
130 	 *  set VFRM - valid frame enabled
131 	 *  set ESYN - ASYNC generation enabled
132 	 *  set RSTN - ARST# inactive, AC97 codec not reset
133 	 */
134 
135 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
136 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
137 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
138 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW |
139 				   ACCTL_VFRM | ACCTL_ESYN |
140 				   ACCTL_RSTN);
141 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
142 				   ACCTL_VFRM | ACCTL_ESYN |
143 				   ACCTL_RSTN);
144 	} else {
145 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
146 				   ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
147 				   ACCTL_RSTN);
148 	}
149 
150 	/*
151 	 *  Wait for the read to occur.
152 	 */
153 	for (count = 0; count < 1000; count++) {
154 		/*
155 		 *  First, we want to wait for a short time.
156 	 	 */
157 		udelay(10);
158 		/*
159 		 *  Now, check to see if the read has completed.
160 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
161 		 */
162 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
163 			goto ok1;
164 	}
165 
166 	snd_printk("AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
167 	result = 0xffff;
168 	goto end;
169 
170  ok1:
171 	/*
172 	 *  Wait for the valid status bit to go active.
173 	 */
174 	for (count = 0; count < 100; count++) {
175 		/*
176 		 *  Read the AC97 status register.
177 		 *  ACSTS = Status Register = 464h
178 		 *  VSTS - Valid Status
179 		 */
180 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
181 			goto ok2;
182 		udelay(10);
183 	}
184 
185 	snd_printk("AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n", codec_index, reg);
186 	result = 0xffff;
187 	goto end;
188 
189  ok2:
190 	/*
191 	 *  Read the data returned from the AC97 register.
192 	 *  ACSDA = Status Data Register = 474h
193 	 */
194 #if 0
195 	printk("e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
196 			snd_cs46xx_peekBA0(chip, BA0_ACSDA),
197 			snd_cs46xx_peekBA0(chip, BA0_ACCAD));
198 #endif
199 
200 	//snd_cs46xx_peekBA0(chip, BA0_ACCAD);
201 	result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
202  end:
203 	chip->active_ctrl(chip, -1);
204 	return result;
205 }
206 
207 static unsigned short snd_cs46xx_ac97_read(ac97_t * ac97,
208 					    unsigned short reg)
209 {
210 	cs46xx_t *chip = ac97->private_data;
211 	unsigned short val;
212 	int codec_index = ac97->num;
213 
214 	snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
215 		   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
216 		   return 0xffff);
217 
218 	val = snd_cs46xx_codec_read(chip, reg, codec_index);
219 
220 	return val;
221 }
222 
223 
224 static void snd_cs46xx_codec_write(cs46xx_t *chip,
225 				   unsigned short reg,
226 				   unsigned short val,
227 				   int codec_index)
228 {
229 	int count;
230 
231 	snd_assert ((codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
232 		    (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
233 		    return);
234 
235 	chip->active_ctrl(chip, 1);
236 
237 	/*
238 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
239 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
240 	 *  3. Write ACCTL = Control Register = 460h for initiating the write
241 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
242 	 *  5. if DCV not cleared, break and return error
243 	 */
244 
245 	/*
246 	 *  Setup the AC97 control registers on the CS461x to send the
247 	 *  appropriate command to the AC97 to perform the read.
248 	 *  ACCAD = Command Address Register = 46Ch
249 	 *  ACCDA = Command Data Register = 470h
250 	 *  ACCTL = Control Register = 460h
251 	 *  set DCV - will clear when process completed
252 	 *  reset CRW - Write command
253 	 *  set VFRM - valid frame enabled
254 	 *  set ESYN - ASYNC generation enabled
255 	 *  set RSTN - ARST# inactive, AC97 codec not reset
256          */
257 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
258 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
259 	snd_cs46xx_peekBA0(chip, BA0_ACCTL);
260 
261 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
262 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
263 				   ACCTL_ESYN | ACCTL_RSTN);
264 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
265 				   ACCTL_ESYN | ACCTL_RSTN);
266 	} else {
267 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
268 				   ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
269 	}
270 
271 	for (count = 0; count < 4000; count++) {
272 		/*
273 		 *  First, we want to wait for a short time.
274 		 */
275 		udelay(10);
276 		/*
277 		 *  Now, check to see if the write has completed.
278 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
279 		 */
280 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
281 			goto end;
282 		}
283 	}
284 	snd_printk("AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n", codec_index, reg, val);
285  end:
286 	chip->active_ctrl(chip, -1);
287 }
288 
289 static void snd_cs46xx_ac97_write(ac97_t *ac97,
290 				   unsigned short reg,
291 				   unsigned short val)
292 {
293 	cs46xx_t *chip = ac97->private_data;
294 	int codec_index = ac97->num;
295 
296 	snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
297 		   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
298 		   return);
299 
300 	snd_cs46xx_codec_write(chip, reg, val, codec_index);
301 }
302 
303 
304 /*
305  *  Chip initialization
306  */
307 
308 int snd_cs46xx_download(cs46xx_t *chip,
309 			u32 *src,
310                         unsigned long offset,
311                         unsigned long len)
312 {
313 	void __iomem *dst;
314 	unsigned int bank = offset >> 16;
315 	offset = offset & 0xffff;
316 
317 	snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
318 	dst = chip->region.idx[bank+1].remap_addr + offset;
319 	len /= sizeof(u32);
320 
321 	/* writel already converts 32-bit value to right endianess */
322 	while (len-- > 0) {
323 		writel(*src++, dst);
324 		dst += sizeof(u32);
325 	}
326 	return 0;
327 }
328 
329 #ifdef CONFIG_SND_CS46XX_NEW_DSP
330 
331 #include "imgs/cwc4630.h"
332 #include "imgs/cwcasync.h"
333 #include "imgs/cwcsnoop.h"
334 #include "imgs/cwcbinhack.h"
335 #include "imgs/cwcdma.h"
336 
337 int snd_cs46xx_clear_BA1(cs46xx_t *chip,
338                          unsigned long offset,
339                          unsigned long len)
340 {
341 	void __iomem *dst;
342 	unsigned int bank = offset >> 16;
343 	offset = offset & 0xffff;
344 
345 	snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
346 	dst = chip->region.idx[bank+1].remap_addr + offset;
347 	len /= sizeof(u32);
348 
349 	/* writel already converts 32-bit value to right endianess */
350 	while (len-- > 0) {
351 		writel(0, dst);
352 		dst += sizeof(u32);
353 	}
354 	return 0;
355 }
356 
357 #else /* old DSP image */
358 
359 #include "cs46xx_image.h"
360 
361 int snd_cs46xx_download_image(cs46xx_t *chip)
362 {
363 	int idx, err;
364 	unsigned long offset = 0;
365 
366 	for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
367 		if ((err = snd_cs46xx_download(chip,
368 					       &BA1Struct.map[offset],
369 					       BA1Struct.memory[idx].offset,
370 					       BA1Struct.memory[idx].size)) < 0)
371 			return err;
372 		offset += BA1Struct.memory[idx].size >> 2;
373 	}
374 	return 0;
375 }
376 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
377 
378 /*
379  *  Chip reset
380  */
381 
382 static void snd_cs46xx_reset(cs46xx_t *chip)
383 {
384 	int idx;
385 
386 	/*
387 	 *  Write the reset bit of the SP control register.
388 	 */
389 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
390 
391 	/*
392 	 *  Write the control register.
393 	 */
394 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
395 
396 	/*
397 	 *  Clear the trap registers.
398 	 */
399 	for (idx = 0; idx < 8; idx++) {
400 		snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
401 		snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
402 	}
403 	snd_cs46xx_poke(chip, BA1_DREG, 0);
404 
405 	/*
406 	 *  Set the frame timer to reflect the number of cycles per frame.
407 	 */
408 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
409 }
410 
411 static int cs46xx_wait_for_fifo(cs46xx_t * chip,int retry_timeout)
412 {
413 	u32 i, status = 0;
414 	/*
415 	 * Make sure the previous FIFO write operation has completed.
416 	 */
417 	for(i = 0; i < 50; i++){
418 		status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
419 
420 		if( !(status & SERBST_WBSY) )
421 			break;
422 
423 		mdelay(retry_timeout);
424 	}
425 
426 	if(status & SERBST_WBSY) {
427 		snd_printk( KERN_ERR "cs46xx: failure waiting for FIFO command to complete\n");
428 
429 		return -EINVAL;
430 	}
431 
432 	return 0;
433 }
434 
435 static void snd_cs46xx_clear_serial_FIFOs(cs46xx_t *chip)
436 {
437 	int idx, powerdown = 0;
438 	unsigned int tmp;
439 
440 	/*
441 	 *  See if the devices are powered down.  If so, we must power them up first
442 	 *  or they will not respond.
443 	 */
444 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
445 	if (!(tmp & CLKCR1_SWCE)) {
446 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
447 		powerdown = 1;
448 	}
449 
450 	/*
451 	 *  We want to clear out the serial port FIFOs so we don't end up playing
452 	 *  whatever random garbage happens to be in them.  We fill the sample FIFOS
453 	 *  with zero (silence).
454 	 */
455 	snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
456 
457 	/*
458 	 *  Fill all 256 sample FIFO locations.
459 	 */
460 	for (idx = 0; idx < 0xFF; idx++) {
461 		/*
462 		 *  Make sure the previous FIFO write operation has completed.
463 		 */
464 		if (cs46xx_wait_for_fifo(chip,1)) {
465 			snd_printdd ("failed waiting for FIFO at addr (%02X)\n",idx);
466 
467 			if (powerdown)
468 				snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
469 
470 			break;
471 		}
472 		/*
473 		 *  Write the serial port FIFO index.
474 		 */
475 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
476 		/*
477 		 *  Tell the serial port to load the new value into the FIFO location.
478 		 */
479 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
480 	}
481 	/*
482 	 *  Now, if we powered up the devices, then power them back down again.
483 	 *  This is kinda ugly, but should never happen.
484 	 */
485 	if (powerdown)
486 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
487 }
488 
489 static void snd_cs46xx_proc_start(cs46xx_t *chip)
490 {
491 	int cnt;
492 
493 	/*
494 	 *  Set the frame timer to reflect the number of cycles per frame.
495 	 */
496 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
497 	/*
498 	 *  Turn on the run, run at frame, and DMA enable bits in the local copy of
499 	 *  the SP control register.
500 	 */
501 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
502 	/*
503 	 *  Wait until the run at frame bit resets itself in the SP control
504 	 *  register.
505 	 */
506 	for (cnt = 0; cnt < 25; cnt++) {
507 		udelay(50);
508 		if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
509 			break;
510 	}
511 
512 	if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
513 		snd_printk("SPCR_RUNFR never reset\n");
514 }
515 
516 static void snd_cs46xx_proc_stop(cs46xx_t *chip)
517 {
518 	/*
519 	 *  Turn off the run, run at frame, and DMA enable bits in the local copy of
520 	 *  the SP control register.
521 	 */
522 	snd_cs46xx_poke(chip, BA1_SPCR, 0);
523 }
524 
525 /*
526  *  Sample rate routines
527  */
528 
529 #define GOF_PER_SEC 200
530 
531 static void snd_cs46xx_set_play_sample_rate(cs46xx_t *chip, unsigned int rate)
532 {
533 	unsigned long flags;
534 	unsigned int tmp1, tmp2;
535 	unsigned int phiIncr;
536 	unsigned int correctionPerGOF, correctionPerSec;
537 
538 	/*
539 	 *  Compute the values used to drive the actual sample rate conversion.
540 	 *  The following formulas are being computed, using inline assembly
541 	 *  since we need to use 64 bit arithmetic to compute the values:
542 	 *
543 	 *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
544 	 *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
545          *                                   GOF_PER_SEC)
546          *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
547          *                       GOF_PER_SEC * correctionPerGOF
548 	 *
549 	 *  i.e.
550 	 *
551 	 *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
552 	 *  correctionPerGOF:correctionPerSec =
553 	 *      dividend:remainder(ulOther / GOF_PER_SEC)
554 	 */
555 	tmp1 = rate << 16;
556 	phiIncr = tmp1 / 48000;
557 	tmp1 -= phiIncr * 48000;
558 	tmp1 <<= 10;
559 	phiIncr <<= 10;
560 	tmp2 = tmp1 / 48000;
561 	phiIncr += tmp2;
562 	tmp1 -= tmp2 * 48000;
563 	correctionPerGOF = tmp1 / GOF_PER_SEC;
564 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
565 	correctionPerSec = tmp1;
566 
567 	/*
568 	 *  Fill in the SampleRateConverter control block.
569 	 */
570 	spin_lock_irqsave(&chip->reg_lock, flags);
571 	snd_cs46xx_poke(chip, BA1_PSRC,
572 	  ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
573 	snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
574 	spin_unlock_irqrestore(&chip->reg_lock, flags);
575 }
576 
577 static void snd_cs46xx_set_capture_sample_rate(cs46xx_t *chip, unsigned int rate)
578 {
579 	unsigned long flags;
580 	unsigned int phiIncr, coeffIncr, tmp1, tmp2;
581 	unsigned int correctionPerGOF, correctionPerSec, initialDelay;
582 	unsigned int frameGroupLength, cnt;
583 
584 	/*
585 	 *  We can only decimate by up to a factor of 1/9th the hardware rate.
586 	 *  Correct the value if an attempt is made to stray outside that limit.
587 	 */
588 	if ((rate * 9) < 48000)
589 		rate = 48000 / 9;
590 
591 	/*
592 	 *  We can not capture at at rate greater than the Input Rate (48000).
593 	 *  Return an error if an attempt is made to stray outside that limit.
594 	 */
595 	if (rate > 48000)
596 		rate = 48000;
597 
598 	/*
599 	 *  Compute the values used to drive the actual sample rate conversion.
600 	 *  The following formulas are being computed, using inline assembly
601 	 *  since we need to use 64 bit arithmetic to compute the values:
602 	 *
603 	 *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
604 	 *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
605 	 *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
606 	 *                                GOF_PER_SEC)
607 	 *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
608 	 *                          GOF_PER_SEC * correctionPerGOF
609 	 *     initialDelay = ceil((24 * Fs,in) / Fs,out)
610 	 *
611 	 * i.e.
612 	 *
613 	 *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
614 	 *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
615 	 *     correctionPerGOF:correctionPerSec =
616 	 * 	    dividend:remainder(ulOther / GOF_PER_SEC)
617 	 *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
618 	 */
619 
620 	tmp1 = rate << 16;
621 	coeffIncr = tmp1 / 48000;
622 	tmp1 -= coeffIncr * 48000;
623 	tmp1 <<= 7;
624 	coeffIncr <<= 7;
625 	coeffIncr += tmp1 / 48000;
626 	coeffIncr ^= 0xFFFFFFFF;
627 	coeffIncr++;
628 	tmp1 = 48000 << 16;
629 	phiIncr = tmp1 / rate;
630 	tmp1 -= phiIncr * rate;
631 	tmp1 <<= 10;
632 	phiIncr <<= 10;
633 	tmp2 = tmp1 / rate;
634 	phiIncr += tmp2;
635 	tmp1 -= tmp2 * rate;
636 	correctionPerGOF = tmp1 / GOF_PER_SEC;
637 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
638 	correctionPerSec = tmp1;
639 	initialDelay = ((48000 * 24) + rate - 1) / rate;
640 
641 	/*
642 	 *  Fill in the VariDecimate control block.
643 	 */
644 	spin_lock_irqsave(&chip->reg_lock, flags);
645 	snd_cs46xx_poke(chip, BA1_CSRC,
646 		((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
647 	snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
648 	snd_cs46xx_poke(chip, BA1_CD,
649 		(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
650 	snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
651 	spin_unlock_irqrestore(&chip->reg_lock, flags);
652 
653 	/*
654 	 *  Figure out the frame group length for the write back task.  Basically,
655 	 *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
656 	 *  the output sample rate.
657 	 */
658 	frameGroupLength = 1;
659 	for (cnt = 2; cnt <= 64; cnt *= 2) {
660 		if (((rate / cnt) * cnt) != rate)
661 			frameGroupLength *= 2;
662 	}
663 	if (((rate / 3) * 3) != rate) {
664 		frameGroupLength *= 3;
665 	}
666 	for (cnt = 5; cnt <= 125; cnt *= 5) {
667 		if (((rate / cnt) * cnt) != rate)
668 			frameGroupLength *= 5;
669         }
670 
671 	/*
672 	 * Fill in the WriteBack control block.
673 	 */
674 	spin_lock_irqsave(&chip->reg_lock, flags);
675 	snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
676 	snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
677 	snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
678 	snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
679 	snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
680 	spin_unlock_irqrestore(&chip->reg_lock, flags);
681 }
682 
683 /*
684  *  PCM part
685  */
686 
687 static void snd_cs46xx_pb_trans_copy(snd_pcm_substream_t *substream,
688 				     snd_pcm_indirect_t *rec, size_t bytes)
689 {
690 	snd_pcm_runtime_t *runtime = substream->runtime;
691 	cs46xx_pcm_t * cpcm = runtime->private_data;
692 	memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
693 }
694 
695 static int snd_cs46xx_playback_transfer(snd_pcm_substream_t *substream)
696 {
697 	snd_pcm_runtime_t *runtime = substream->runtime;
698 	cs46xx_pcm_t * cpcm = runtime->private_data;
699 	snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec, snd_cs46xx_pb_trans_copy);
700 	return 0;
701 }
702 
703 static void snd_cs46xx_cp_trans_copy(snd_pcm_substream_t *substream,
704 				     snd_pcm_indirect_t *rec, size_t bytes)
705 {
706 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
707 	snd_pcm_runtime_t *runtime = substream->runtime;
708 	memcpy(runtime->dma_area + rec->sw_data,
709 	       chip->capt.hw_buf.area + rec->hw_data, bytes);
710 }
711 
712 static int snd_cs46xx_capture_transfer(snd_pcm_substream_t *substream)
713 {
714 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
715 	snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec, snd_cs46xx_cp_trans_copy);
716 	return 0;
717 }
718 
719 static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(snd_pcm_substream_t * substream)
720 {
721 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
722 	size_t ptr;
723 	cs46xx_pcm_t *cpcm = substream->runtime->private_data;
724 	snd_assert (cpcm->pcm_channel,return -ENXIO);
725 
726 #ifdef CONFIG_SND_CS46XX_NEW_DSP
727 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
728 #else
729 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
730 #endif
731 	ptr -= cpcm->hw_buf.addr;
732 	return ptr >> cpcm->shift;
733 }
734 
735 static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(snd_pcm_substream_t * substream)
736 {
737 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
738 	size_t ptr;
739 	cs46xx_pcm_t *cpcm = substream->runtime->private_data;
740 
741 #ifdef CONFIG_SND_CS46XX_NEW_DSP
742 	snd_assert (cpcm->pcm_channel,return -ENXIO);
743 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
744 #else
745 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
746 #endif
747 	ptr -= cpcm->hw_buf.addr;
748 	return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
749 }
750 
751 static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(snd_pcm_substream_t * substream)
752 {
753 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
754 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
755 	return ptr >> chip->capt.shift;
756 }
757 
758 static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(snd_pcm_substream_t * substream)
759 {
760 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
761 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
762 	return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
763 }
764 
765 static int snd_cs46xx_playback_trigger(snd_pcm_substream_t * substream,
766 				       int cmd)
767 {
768 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
769 	/*snd_pcm_runtime_t *runtime = substream->runtime;*/
770 	int result = 0;
771 
772 #ifdef CONFIG_SND_CS46XX_NEW_DSP
773 	cs46xx_pcm_t *cpcm = substream->runtime->private_data;
774 	if (! cpcm->pcm_channel) {
775 		return -ENXIO;
776 	}
777 #endif
778 	switch (cmd) {
779 	case SNDRV_PCM_TRIGGER_START:
780 	case SNDRV_PCM_TRIGGER_RESUME:
781 #ifdef CONFIG_SND_CS46XX_NEW_DSP
782 		/* magic value to unmute PCM stream  playback volume */
783 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
784 				       SCBVolumeCtrl) << 2, 0x80008000);
785 
786 		if (cpcm->pcm_channel->unlinked)
787 			cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
788 
789 		if (substream->runtime->periods != CS46XX_FRAGS)
790 			snd_cs46xx_playback_transfer(substream);
791 #else
792 		spin_lock(&chip->reg_lock);
793 		if (substream->runtime->periods != CS46XX_FRAGS)
794 			snd_cs46xx_playback_transfer(substream);
795 		{ unsigned int tmp;
796 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
797 		tmp &= 0x0000ffff;
798 		snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
799 		}
800 		spin_unlock(&chip->reg_lock);
801 #endif
802 		break;
803 	case SNDRV_PCM_TRIGGER_STOP:
804 	case SNDRV_PCM_TRIGGER_SUSPEND:
805 #ifdef CONFIG_SND_CS46XX_NEW_DSP
806 		/* magic mute channel */
807 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
808 				       SCBVolumeCtrl) << 2, 0xffffffff);
809 
810 		if (!cpcm->pcm_channel->unlinked)
811 			cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
812 #else
813 		spin_lock(&chip->reg_lock);
814 		{ unsigned int tmp;
815 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
816 		tmp &= 0x0000ffff;
817 		snd_cs46xx_poke(chip, BA1_PCTL, tmp);
818 		}
819 		spin_unlock(&chip->reg_lock);
820 #endif
821 		break;
822 	default:
823 		result = -EINVAL;
824 		break;
825 	}
826 
827 	return result;
828 }
829 
830 static int snd_cs46xx_capture_trigger(snd_pcm_substream_t * substream,
831 				      int cmd)
832 {
833 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
834 	unsigned int tmp;
835 	int result = 0;
836 
837 	spin_lock(&chip->reg_lock);
838 	switch (cmd) {
839 	case SNDRV_PCM_TRIGGER_START:
840 	case SNDRV_PCM_TRIGGER_RESUME:
841 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
842 		tmp &= 0xffff0000;
843 		snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
844 		break;
845 	case SNDRV_PCM_TRIGGER_STOP:
846 	case SNDRV_PCM_TRIGGER_SUSPEND:
847 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
848 		tmp &= 0xffff0000;
849 		snd_cs46xx_poke(chip, BA1_CCTL, tmp);
850 		break;
851 	default:
852 		result = -EINVAL;
853 		break;
854 	}
855 	spin_unlock(&chip->reg_lock);
856 
857 	return result;
858 }
859 
860 #ifdef CONFIG_SND_CS46XX_NEW_DSP
861 static int _cs46xx_adjust_sample_rate (cs46xx_t *chip, cs46xx_pcm_t *cpcm,
862 				       int sample_rate)
863 {
864 
865 	/* If PCMReaderSCB and SrcTaskSCB not created yet ... */
866 	if ( cpcm->pcm_channel == NULL) {
867 		cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate,
868 								   cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
869 		if (cpcm->pcm_channel == NULL) {
870 			snd_printk(KERN_ERR "cs46xx: failed to create virtual PCM channel\n");
871 			return -ENOMEM;
872 		}
873 		cpcm->pcm_channel->sample_rate = sample_rate;
874 	} else
875 	/* if sample rate is changed */
876 	if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
877 		int unlinked = cpcm->pcm_channel->unlinked;
878 		cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
879 
880 		if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm,
881 									 cpcm->hw_buf.addr,
882 									 cpcm->pcm_channel_id)) == NULL) {
883 			snd_printk(KERN_ERR "cs46xx: failed to re-create virtual PCM channel\n");
884 			return -ENOMEM;
885 		}
886 
887 		if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
888 		cpcm->pcm_channel->sample_rate = sample_rate;
889 	}
890 
891 	return 0;
892 }
893 #endif
894 
895 
896 static int snd_cs46xx_playback_hw_params(snd_pcm_substream_t * substream,
897 					 snd_pcm_hw_params_t * hw_params)
898 {
899 	snd_pcm_runtime_t *runtime = substream->runtime;
900 	cs46xx_pcm_t *cpcm;
901 	int err;
902 #ifdef CONFIG_SND_CS46XX_NEW_DSP
903 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
904 	int sample_rate = params_rate(hw_params);
905 	int period_size = params_period_bytes(hw_params);
906 #endif
907 	cpcm = runtime->private_data;
908 
909 #ifdef CONFIG_SND_CS46XX_NEW_DSP
910 	snd_assert (sample_rate != 0, return -ENXIO);
911 
912 	down (&chip->spos_mutex);
913 
914 	if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
915 		up (&chip->spos_mutex);
916 		return -ENXIO;
917 	}
918 
919 	snd_assert (cpcm->pcm_channel != NULL);
920 	if (!cpcm->pcm_channel) {
921 		up (&chip->spos_mutex);
922 		return -ENXIO;
923 	}
924 
925 
926 	if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
927 		 up (&chip->spos_mutex);
928 		 return -EINVAL;
929 	 }
930 
931 	snd_printdd ("period_size (%d), periods (%d) buffer_size(%d)\n",
932 		     period_size, params_periods(hw_params),
933 		     params_buffer_bytes(hw_params));
934 #endif
935 
936 	if (params_periods(hw_params) == CS46XX_FRAGS) {
937 		if (runtime->dma_area != cpcm->hw_buf.area)
938 			snd_pcm_lib_free_pages(substream);
939 		runtime->dma_area = cpcm->hw_buf.area;
940 		runtime->dma_addr = cpcm->hw_buf.addr;
941 		runtime->dma_bytes = cpcm->hw_buf.bytes;
942 
943 
944 #ifdef CONFIG_SND_CS46XX_NEW_DSP
945 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
946 			substream->ops = &snd_cs46xx_playback_ops;
947 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
948 			substream->ops = &snd_cs46xx_playback_rear_ops;
949 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
950 			substream->ops = &snd_cs46xx_playback_clfe_ops;
951 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
952 			substream->ops = &snd_cs46xx_playback_iec958_ops;
953 		} else {
954 			snd_assert(0);
955 		}
956 #else
957 		substream->ops = &snd_cs46xx_playback_ops;
958 #endif
959 
960 	} else {
961 		if (runtime->dma_area == cpcm->hw_buf.area) {
962 			runtime->dma_area = NULL;
963 			runtime->dma_addr = 0;
964 			runtime->dma_bytes = 0;
965 		}
966 		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
967 #ifdef CONFIG_SND_CS46XX_NEW_DSP
968 			up (&chip->spos_mutex);
969 #endif
970 			return err;
971 		}
972 
973 #ifdef CONFIG_SND_CS46XX_NEW_DSP
974 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
975 			substream->ops = &snd_cs46xx_playback_indirect_ops;
976 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
977 			substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
978 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
979 			substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
980 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
981 			substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
982 		} else {
983 			snd_assert(0);
984 		}
985 #else
986 		substream->ops = &snd_cs46xx_playback_indirect_ops;
987 #endif
988 
989 	}
990 
991 #ifdef CONFIG_SND_CS46XX_NEW_DSP
992 	up (&chip->spos_mutex);
993 #endif
994 
995 	return 0;
996 }
997 
998 static int snd_cs46xx_playback_hw_free(snd_pcm_substream_t * substream)
999 {
1000 	/*cs46xx_t *chip = snd_pcm_substream_chip(substream);*/
1001 	snd_pcm_runtime_t *runtime = substream->runtime;
1002 	cs46xx_pcm_t *cpcm;
1003 
1004 	cpcm = runtime->private_data;
1005 
1006 	/* if play_back open fails, then this function
1007 	   is called and cpcm can actually be NULL here */
1008 	if (!cpcm) return -ENXIO;
1009 
1010 	if (runtime->dma_area != cpcm->hw_buf.area)
1011 		snd_pcm_lib_free_pages(substream);
1012 
1013 	runtime->dma_area = NULL;
1014 	runtime->dma_addr = 0;
1015 	runtime->dma_bytes = 0;
1016 
1017 	return 0;
1018 }
1019 
1020 static int snd_cs46xx_playback_prepare(snd_pcm_substream_t * substream)
1021 {
1022 	unsigned int tmp;
1023 	unsigned int pfie;
1024 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1025 	snd_pcm_runtime_t *runtime = substream->runtime;
1026 	cs46xx_pcm_t *cpcm;
1027 
1028 	cpcm = runtime->private_data;
1029 
1030 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1031     snd_assert (cpcm->pcm_channel != NULL, return -ENXIO);
1032 
1033 	pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
1034 	pfie &= ~0x0000f03f;
1035 #else
1036 	/* old dsp */
1037 	pfie = snd_cs46xx_peek(chip, BA1_PFIE);
1038  	pfie &= ~0x0000f03f;
1039 #endif
1040 
1041 	cpcm->shift = 2;
1042 	/* if to convert from stereo to mono */
1043 	if (runtime->channels == 1) {
1044 		cpcm->shift--;
1045 		pfie |= 0x00002000;
1046 	}
1047 	/* if to convert from 8 bit to 16 bit */
1048 	if (snd_pcm_format_width(runtime->format) == 8) {
1049 		cpcm->shift--;
1050 		pfie |= 0x00001000;
1051 	}
1052 	/* if to convert to unsigned */
1053 	if (snd_pcm_format_unsigned(runtime->format))
1054 		pfie |= 0x00008000;
1055 
1056 	/* Never convert byte order when sample stream is 8 bit */
1057 	if (snd_pcm_format_width(runtime->format) != 8) {
1058 		/* convert from big endian to little endian */
1059 		if (snd_pcm_format_big_endian(runtime->format))
1060 			pfie |= 0x00004000;
1061 	}
1062 
1063 	memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
1064 	cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1065 	cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
1066 
1067 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1068 
1069 	tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
1070 	tmp &= ~0x000003ff;
1071 	tmp |= (4 << cpcm->shift) - 1;
1072 	/* playback transaction count register */
1073 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
1074 
1075 	/* playback format && interrupt enable */
1076 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
1077 #else
1078 	snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
1079 	tmp = snd_cs46xx_peek(chip, BA1_PDTC);
1080 	tmp &= ~0x000003ff;
1081 	tmp |= (4 << cpcm->shift) - 1;
1082 	snd_cs46xx_poke(chip, BA1_PDTC, tmp);
1083 	snd_cs46xx_poke(chip, BA1_PFIE, pfie);
1084 	snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
1085 #endif
1086 
1087 	return 0;
1088 }
1089 
1090 static int snd_cs46xx_capture_hw_params(snd_pcm_substream_t * substream,
1091 					snd_pcm_hw_params_t * hw_params)
1092 {
1093 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1094 	snd_pcm_runtime_t *runtime = substream->runtime;
1095 	int err;
1096 
1097 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1098 	cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
1099 #endif
1100 	if (runtime->periods == CS46XX_FRAGS) {
1101 		if (runtime->dma_area != chip->capt.hw_buf.area)
1102 			snd_pcm_lib_free_pages(substream);
1103 		runtime->dma_area = chip->capt.hw_buf.area;
1104 		runtime->dma_addr = chip->capt.hw_buf.addr;
1105 		runtime->dma_bytes = chip->capt.hw_buf.bytes;
1106 		substream->ops = &snd_cs46xx_capture_ops;
1107 	} else {
1108 		if (runtime->dma_area == chip->capt.hw_buf.area) {
1109 			runtime->dma_area = NULL;
1110 			runtime->dma_addr = 0;
1111 			runtime->dma_bytes = 0;
1112 		}
1113 		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1114 			return err;
1115 		substream->ops = &snd_cs46xx_capture_indirect_ops;
1116 	}
1117 
1118 	return 0;
1119 }
1120 
1121 static int snd_cs46xx_capture_hw_free(snd_pcm_substream_t * substream)
1122 {
1123 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1124 	snd_pcm_runtime_t *runtime = substream->runtime;
1125 
1126 	if (runtime->dma_area != chip->capt.hw_buf.area)
1127 		snd_pcm_lib_free_pages(substream);
1128 	runtime->dma_area = NULL;
1129 	runtime->dma_addr = 0;
1130 	runtime->dma_bytes = 0;
1131 
1132 	return 0;
1133 }
1134 
1135 static int snd_cs46xx_capture_prepare(snd_pcm_substream_t * substream)
1136 {
1137 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1138 	snd_pcm_runtime_t *runtime = substream->runtime;
1139 
1140 	snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
1141 	chip->capt.shift = 2;
1142 	memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
1143 	chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1144 	chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
1145 	snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
1146 
1147 	return 0;
1148 }
1149 
1150 static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1151 {
1152 	cs46xx_t *chip = dev_id;
1153 	u32 status1;
1154 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1155 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
1156 	u32 status2;
1157 	int i;
1158 	cs46xx_pcm_t *cpcm = NULL;
1159 #endif
1160 
1161 	/*
1162 	 *  Read the Interrupt Status Register to clear the interrupt
1163 	 */
1164 	status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
1165 	if ((status1 & 0x7fffffff) == 0) {
1166 		snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1167 		return IRQ_NONE;
1168 	}
1169 
1170 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1171 	status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
1172 
1173 	for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
1174 		if (i <= 15) {
1175 			if ( status1 & (1 << i) ) {
1176 				if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
1177 					if (chip->capt.substream)
1178 						snd_pcm_period_elapsed(chip->capt.substream);
1179 				} else {
1180 					if (ins->pcm_channels[i].active &&
1181 					    ins->pcm_channels[i].private_data &&
1182 					    !ins->pcm_channels[i].unlinked) {
1183 						cpcm = ins->pcm_channels[i].private_data;
1184 						snd_pcm_period_elapsed(cpcm->substream);
1185 					}
1186 				}
1187 			}
1188 		} else {
1189 			if ( status2 & (1 << (i - 16))) {
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 	}
1199 
1200 #else
1201 	/* old dsp */
1202 	if ((status1 & HISR_VC0) && chip->playback_pcm) {
1203 		if (chip->playback_pcm->substream)
1204 			snd_pcm_period_elapsed(chip->playback_pcm->substream);
1205 	}
1206 	if ((status1 & HISR_VC1) && chip->pcm) {
1207 		if (chip->capt.substream)
1208 			snd_pcm_period_elapsed(chip->capt.substream);
1209 	}
1210 #endif
1211 
1212 	if ((status1 & HISR_MIDI) && chip->rmidi) {
1213 		unsigned char c;
1214 
1215 		spin_lock(&chip->reg_lock);
1216 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
1217 			c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
1218 			if ((chip->midcr & MIDCR_RIE) == 0)
1219 				continue;
1220 			snd_rawmidi_receive(chip->midi_input, &c, 1);
1221 		}
1222 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
1223 			if ((chip->midcr & MIDCR_TIE) == 0)
1224 				break;
1225 			if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
1226 				chip->midcr &= ~MIDCR_TIE;
1227 				snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
1228 				break;
1229 			}
1230 			snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
1231 		}
1232 		spin_unlock(&chip->reg_lock);
1233 	}
1234 	/*
1235 	 *  EOI to the PCI part....reenables interrupts
1236 	 */
1237 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1238 
1239 	return IRQ_HANDLED;
1240 }
1241 
1242 static snd_pcm_hardware_t snd_cs46xx_playback =
1243 {
1244 	.info =			(SNDRV_PCM_INFO_MMAP |
1245 				 SNDRV_PCM_INFO_INTERLEAVED |
1246 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1247 				 /*SNDRV_PCM_INFO_RESUME*/),
1248 	.formats =		(SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1249 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
1250 				 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
1251 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1252 	.rate_min =		5500,
1253 	.rate_max =		48000,
1254 	.channels_min =		1,
1255 	.channels_max =		2,
1256 	.buffer_bytes_max =	(256 * 1024),
1257 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1258 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1259 	.periods_min =		CS46XX_FRAGS,
1260 	.periods_max =		1024,
1261 	.fifo_size =		0,
1262 };
1263 
1264 static snd_pcm_hardware_t snd_cs46xx_capture =
1265 {
1266 	.info =			(SNDRV_PCM_INFO_MMAP |
1267 				 SNDRV_PCM_INFO_INTERLEAVED |
1268 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1269 				 /*SNDRV_PCM_INFO_RESUME*/),
1270 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1271 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1272 	.rate_min =		5500,
1273 	.rate_max =		48000,
1274 	.channels_min =		2,
1275 	.channels_max =		2,
1276 	.buffer_bytes_max =	(256 * 1024),
1277 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1278 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1279 	.periods_min =		CS46XX_FRAGS,
1280 	.periods_max =		1024,
1281 	.fifo_size =		0,
1282 };
1283 
1284 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1285 
1286 static unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
1287 
1288 static snd_pcm_hw_constraint_list_t hw_constraints_period_sizes = {
1289 	.count = ARRAY_SIZE(period_sizes),
1290 	.list = period_sizes,
1291 	.mask = 0
1292 };
1293 
1294 #endif
1295 
1296 static void snd_cs46xx_pcm_free_substream(snd_pcm_runtime_t *runtime)
1297 {
1298 	kfree(runtime->private_data);
1299 }
1300 
1301 static int _cs46xx_playback_open_channel (snd_pcm_substream_t * substream,int pcm_channel_id)
1302 {
1303 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1304 	cs46xx_pcm_t * cpcm;
1305 	snd_pcm_runtime_t *runtime = substream->runtime;
1306 
1307 	cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
1308 	if (cpcm == NULL)
1309 		return -ENOMEM;
1310 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1311 				PAGE_SIZE, &cpcm->hw_buf) < 0) {
1312 		kfree(cpcm);
1313 		return -ENOMEM;
1314 	}
1315 
1316 	runtime->hw = snd_cs46xx_playback;
1317 	runtime->private_data = cpcm;
1318 	runtime->private_free = snd_cs46xx_pcm_free_substream;
1319 
1320 	cpcm->substream = substream;
1321 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1322 	down (&chip->spos_mutex);
1323 	cpcm->pcm_channel = NULL;
1324 	cpcm->pcm_channel_id = pcm_channel_id;
1325 
1326 
1327 	snd_pcm_hw_constraint_list(runtime, 0,
1328 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1329 				   &hw_constraints_period_sizes);
1330 
1331 	up (&chip->spos_mutex);
1332 #else
1333 	chip->playback_pcm = cpcm; /* HACK */
1334 #endif
1335 
1336 	if (chip->accept_valid)
1337 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1338 	chip->active_ctrl(chip, 1);
1339 
1340 	return 0;
1341 }
1342 
1343 static int snd_cs46xx_playback_open(snd_pcm_substream_t * substream)
1344 {
1345 	snd_printdd("open front channel\n");
1346 	return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
1347 }
1348 
1349 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1350 static int snd_cs46xx_playback_open_rear(snd_pcm_substream_t * substream)
1351 {
1352 	snd_printdd("open rear channel\n");
1353 
1354 	return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
1355 }
1356 
1357 static int snd_cs46xx_playback_open_clfe(snd_pcm_substream_t * substream)
1358 {
1359 	snd_printdd("open center - LFE channel\n");
1360 
1361 	return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
1362 }
1363 
1364 static int snd_cs46xx_playback_open_iec958(snd_pcm_substream_t * substream)
1365 {
1366 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1367 
1368 	snd_printdd("open raw iec958 channel\n");
1369 
1370 	down (&chip->spos_mutex);
1371 	cs46xx_iec958_pre_open (chip);
1372 	up (&chip->spos_mutex);
1373 
1374 	return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
1375 }
1376 
1377 static int snd_cs46xx_playback_close(snd_pcm_substream_t * substream);
1378 
1379 static int snd_cs46xx_playback_close_iec958(snd_pcm_substream_t * substream)
1380 {
1381 	int err;
1382 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1383 
1384 	snd_printdd("close raw iec958 channel\n");
1385 
1386 	err = snd_cs46xx_playback_close(substream);
1387 
1388 	down (&chip->spos_mutex);
1389 	cs46xx_iec958_post_close (chip);
1390 	up (&chip->spos_mutex);
1391 
1392 	return err;
1393 }
1394 #endif
1395 
1396 static int snd_cs46xx_capture_open(snd_pcm_substream_t * substream)
1397 {
1398 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1399 
1400 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1401 				PAGE_SIZE, &chip->capt.hw_buf) < 0)
1402 		return -ENOMEM;
1403 	chip->capt.substream = substream;
1404 	substream->runtime->hw = snd_cs46xx_capture;
1405 
1406 	if (chip->accept_valid)
1407 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1408 
1409 	chip->active_ctrl(chip, 1);
1410 
1411 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1412 	snd_pcm_hw_constraint_list(substream->runtime, 0,
1413 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1414 				   &hw_constraints_period_sizes);
1415 #endif
1416 	return 0;
1417 }
1418 
1419 static int snd_cs46xx_playback_close(snd_pcm_substream_t * substream)
1420 {
1421 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1422 	snd_pcm_runtime_t *runtime = substream->runtime;
1423 	cs46xx_pcm_t * cpcm;
1424 
1425 	cpcm = runtime->private_data;
1426 
1427 	/* when playback_open fails, then cpcm can be NULL */
1428 	if (!cpcm) return -ENXIO;
1429 
1430 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1431 	down (&chip->spos_mutex);
1432 	if (cpcm->pcm_channel) {
1433 		cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
1434 		cpcm->pcm_channel = NULL;
1435 	}
1436 	up (&chip->spos_mutex);
1437 #else
1438 	chip->playback_pcm = NULL;
1439 #endif
1440 
1441 	cpcm->substream = NULL;
1442 	snd_dma_free_pages(&cpcm->hw_buf);
1443 	chip->active_ctrl(chip, -1);
1444 
1445 	return 0;
1446 }
1447 
1448 static int snd_cs46xx_capture_close(snd_pcm_substream_t * substream)
1449 {
1450 	cs46xx_t *chip = snd_pcm_substream_chip(substream);
1451 
1452 	chip->capt.substream = NULL;
1453 	snd_dma_free_pages(&chip->capt.hw_buf);
1454 	chip->active_ctrl(chip, -1);
1455 
1456 	return 0;
1457 }
1458 
1459 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1460 static snd_pcm_ops_t snd_cs46xx_playback_rear_ops = {
1461 	.open =			snd_cs46xx_playback_open_rear,
1462 	.close =		snd_cs46xx_playback_close,
1463 	.ioctl =		snd_pcm_lib_ioctl,
1464 	.hw_params =		snd_cs46xx_playback_hw_params,
1465 	.hw_free =		snd_cs46xx_playback_hw_free,
1466 	.prepare =		snd_cs46xx_playback_prepare,
1467 	.trigger =		snd_cs46xx_playback_trigger,
1468 	.pointer =		snd_cs46xx_playback_direct_pointer,
1469 };
1470 
1471 static snd_pcm_ops_t snd_cs46xx_playback_indirect_rear_ops = {
1472 	.open =			snd_cs46xx_playback_open_rear,
1473 	.close =		snd_cs46xx_playback_close,
1474 	.ioctl =		snd_pcm_lib_ioctl,
1475 	.hw_params =		snd_cs46xx_playback_hw_params,
1476 	.hw_free =		snd_cs46xx_playback_hw_free,
1477 	.prepare =		snd_cs46xx_playback_prepare,
1478 	.trigger =		snd_cs46xx_playback_trigger,
1479 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1480 	.ack =			snd_cs46xx_playback_transfer,
1481 };
1482 
1483 static snd_pcm_ops_t snd_cs46xx_playback_clfe_ops = {
1484 	.open =			snd_cs46xx_playback_open_clfe,
1485 	.close =		snd_cs46xx_playback_close,
1486 	.ioctl =		snd_pcm_lib_ioctl,
1487 	.hw_params =		snd_cs46xx_playback_hw_params,
1488 	.hw_free =		snd_cs46xx_playback_hw_free,
1489 	.prepare =		snd_cs46xx_playback_prepare,
1490 	.trigger =		snd_cs46xx_playback_trigger,
1491 	.pointer =		snd_cs46xx_playback_direct_pointer,
1492 };
1493 
1494 static snd_pcm_ops_t snd_cs46xx_playback_indirect_clfe_ops = {
1495 	.open =			snd_cs46xx_playback_open_clfe,
1496 	.close =		snd_cs46xx_playback_close,
1497 	.ioctl =		snd_pcm_lib_ioctl,
1498 	.hw_params =		snd_cs46xx_playback_hw_params,
1499 	.hw_free =		snd_cs46xx_playback_hw_free,
1500 	.prepare =		snd_cs46xx_playback_prepare,
1501 	.trigger =		snd_cs46xx_playback_trigger,
1502 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1503 	.ack =			snd_cs46xx_playback_transfer,
1504 };
1505 
1506 static snd_pcm_ops_t snd_cs46xx_playback_iec958_ops = {
1507 	.open =			snd_cs46xx_playback_open_iec958,
1508 	.close =		snd_cs46xx_playback_close_iec958,
1509 	.ioctl =		snd_pcm_lib_ioctl,
1510 	.hw_params =		snd_cs46xx_playback_hw_params,
1511 	.hw_free =		snd_cs46xx_playback_hw_free,
1512 	.prepare =		snd_cs46xx_playback_prepare,
1513 	.trigger =		snd_cs46xx_playback_trigger,
1514 	.pointer =		snd_cs46xx_playback_direct_pointer,
1515 };
1516 
1517 static snd_pcm_ops_t snd_cs46xx_playback_indirect_iec958_ops = {
1518 	.open =			snd_cs46xx_playback_open_iec958,
1519 	.close =		snd_cs46xx_playback_close_iec958,
1520 	.ioctl =		snd_pcm_lib_ioctl,
1521 	.hw_params =		snd_cs46xx_playback_hw_params,
1522 	.hw_free =		snd_cs46xx_playback_hw_free,
1523 	.prepare =		snd_cs46xx_playback_prepare,
1524 	.trigger =		snd_cs46xx_playback_trigger,
1525 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1526 	.ack =			snd_cs46xx_playback_transfer,
1527 };
1528 
1529 #endif
1530 
1531 static snd_pcm_ops_t snd_cs46xx_playback_ops = {
1532 	.open =			snd_cs46xx_playback_open,
1533 	.close =		snd_cs46xx_playback_close,
1534 	.ioctl =		snd_pcm_lib_ioctl,
1535 	.hw_params =		snd_cs46xx_playback_hw_params,
1536 	.hw_free =		snd_cs46xx_playback_hw_free,
1537 	.prepare =		snd_cs46xx_playback_prepare,
1538 	.trigger =		snd_cs46xx_playback_trigger,
1539 	.pointer =		snd_cs46xx_playback_direct_pointer,
1540 };
1541 
1542 static snd_pcm_ops_t snd_cs46xx_playback_indirect_ops = {
1543 	.open =			snd_cs46xx_playback_open,
1544 	.close =		snd_cs46xx_playback_close,
1545 	.ioctl =		snd_pcm_lib_ioctl,
1546 	.hw_params =		snd_cs46xx_playback_hw_params,
1547 	.hw_free =		snd_cs46xx_playback_hw_free,
1548 	.prepare =		snd_cs46xx_playback_prepare,
1549 	.trigger =		snd_cs46xx_playback_trigger,
1550 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1551 	.ack =			snd_cs46xx_playback_transfer,
1552 };
1553 
1554 static snd_pcm_ops_t snd_cs46xx_capture_ops = {
1555 	.open =			snd_cs46xx_capture_open,
1556 	.close =		snd_cs46xx_capture_close,
1557 	.ioctl =		snd_pcm_lib_ioctl,
1558 	.hw_params =		snd_cs46xx_capture_hw_params,
1559 	.hw_free =		snd_cs46xx_capture_hw_free,
1560 	.prepare =		snd_cs46xx_capture_prepare,
1561 	.trigger =		snd_cs46xx_capture_trigger,
1562 	.pointer =		snd_cs46xx_capture_direct_pointer,
1563 };
1564 
1565 static snd_pcm_ops_t snd_cs46xx_capture_indirect_ops = {
1566 	.open =			snd_cs46xx_capture_open,
1567 	.close =		snd_cs46xx_capture_close,
1568 	.ioctl =		snd_pcm_lib_ioctl,
1569 	.hw_params =		snd_cs46xx_capture_hw_params,
1570 	.hw_free =		snd_cs46xx_capture_hw_free,
1571 	.prepare =		snd_cs46xx_capture_prepare,
1572 	.trigger =		snd_cs46xx_capture_trigger,
1573 	.pointer =		snd_cs46xx_capture_indirect_pointer,
1574 	.ack =			snd_cs46xx_capture_transfer,
1575 };
1576 
1577 static void snd_cs46xx_pcm_free(snd_pcm_t *pcm)
1578 {
1579 	cs46xx_t *chip = pcm->private_data;
1580 	chip->pcm = NULL;
1581 	snd_pcm_lib_preallocate_free_for_all(pcm);
1582 }
1583 
1584 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1585 static void snd_cs46xx_pcm_rear_free(snd_pcm_t *pcm)
1586 {
1587 	cs46xx_t *chip = pcm->private_data;
1588 	chip->pcm_rear = NULL;
1589 	snd_pcm_lib_preallocate_free_for_all(pcm);
1590 }
1591 
1592 static void snd_cs46xx_pcm_center_lfe_free(snd_pcm_t *pcm)
1593 {
1594 	cs46xx_t *chip = pcm->private_data;
1595 	chip->pcm_center_lfe = NULL;
1596 	snd_pcm_lib_preallocate_free_for_all(pcm);
1597 }
1598 
1599 static void snd_cs46xx_pcm_iec958_free(snd_pcm_t *pcm)
1600 {
1601 	cs46xx_t *chip = pcm->private_data;
1602 	chip->pcm_iec958 = NULL;
1603 	snd_pcm_lib_preallocate_free_for_all(pcm);
1604 }
1605 
1606 #define MAX_PLAYBACK_CHANNELS	(DSP_MAX_PCM_CHANNELS - 1)
1607 #else
1608 #define MAX_PLAYBACK_CHANNELS	1
1609 #endif
1610 
1611 int __devinit snd_cs46xx_pcm(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
1612 {
1613 	snd_pcm_t *pcm;
1614 	int err;
1615 
1616 	if (rpcm)
1617 		*rpcm = NULL;
1618 	if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
1619 		return err;
1620 
1621 	pcm->private_data = chip;
1622 	pcm->private_free = snd_cs46xx_pcm_free;
1623 
1624 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
1625 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
1626 
1627 	/* global setup */
1628 	pcm->info_flags = 0;
1629 	strcpy(pcm->name, "CS46xx");
1630 	chip->pcm = pcm;
1631 
1632 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1633 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1634 
1635 	if (rpcm)
1636 		*rpcm = pcm;
1637 
1638 	return 0;
1639 }
1640 
1641 
1642 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1643 int __devinit snd_cs46xx_pcm_rear(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
1644 {
1645 	snd_pcm_t *pcm;
1646 	int err;
1647 
1648 	if (rpcm)
1649 		*rpcm = NULL;
1650 
1651 	if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1652 		return err;
1653 
1654 	pcm->private_data = chip;
1655 	pcm->private_free = snd_cs46xx_pcm_rear_free;
1656 
1657 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
1658 
1659 	/* global setup */
1660 	pcm->info_flags = 0;
1661 	strcpy(pcm->name, "CS46xx - Rear");
1662 	chip->pcm_rear = pcm;
1663 
1664 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1665 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1666 
1667 	if (rpcm)
1668 		*rpcm = pcm;
1669 
1670 	return 0;
1671 }
1672 
1673 int __devinit snd_cs46xx_pcm_center_lfe(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
1674 {
1675 	snd_pcm_t *pcm;
1676 	int err;
1677 
1678 	if (rpcm)
1679 		*rpcm = NULL;
1680 
1681 	if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1682 		return err;
1683 
1684 	pcm->private_data = chip;
1685 	pcm->private_free = snd_cs46xx_pcm_center_lfe_free;
1686 
1687 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
1688 
1689 	/* global setup */
1690 	pcm->info_flags = 0;
1691 	strcpy(pcm->name, "CS46xx - Center LFE");
1692 	chip->pcm_center_lfe = pcm;
1693 
1694 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1695 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1696 
1697 	if (rpcm)
1698 		*rpcm = pcm;
1699 
1700 	return 0;
1701 }
1702 
1703 int __devinit snd_cs46xx_pcm_iec958(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
1704 {
1705 	snd_pcm_t *pcm;
1706 	int err;
1707 
1708 	if (rpcm)
1709 		*rpcm = NULL;
1710 
1711 	if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
1712 		return err;
1713 
1714 	pcm->private_data = chip;
1715 	pcm->private_free = snd_cs46xx_pcm_iec958_free;
1716 
1717 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
1718 
1719 	/* global setup */
1720 	pcm->info_flags = 0;
1721 	strcpy(pcm->name, "CS46xx - IEC958");
1722 	chip->pcm_rear = pcm;
1723 
1724 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1725 					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1726 
1727 	if (rpcm)
1728 		*rpcm = pcm;
1729 
1730 	return 0;
1731 }
1732 #endif
1733 
1734 /*
1735  *  Mixer routines
1736  */
1737 static void snd_cs46xx_mixer_free_ac97_bus(ac97_bus_t *bus)
1738 {
1739 	cs46xx_t *chip = bus->private_data;
1740 
1741 	chip->ac97_bus = NULL;
1742 }
1743 
1744 static void snd_cs46xx_mixer_free_ac97(ac97_t *ac97)
1745 {
1746 	cs46xx_t *chip = ac97->private_data;
1747 
1748 	snd_assert ((ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) ||
1749 		    (ac97 == chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]),
1750 		    return);
1751 
1752 	if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
1753 		chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
1754 		chip->eapd_switch = NULL;
1755 	}
1756 	else
1757 		chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
1758 }
1759 
1760 static int snd_cs46xx_vol_info(snd_kcontrol_t *kcontrol,
1761 			       snd_ctl_elem_info_t *uinfo)
1762 {
1763 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1764 	uinfo->count = 2;
1765 	uinfo->value.integer.min = 0;
1766 	uinfo->value.integer.max = 0x7fff;
1767 	return 0;
1768 }
1769 
1770 static int snd_cs46xx_vol_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1771 {
1772 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1773 	int reg = kcontrol->private_value;
1774 	unsigned int val = snd_cs46xx_peek(chip, reg);
1775 	ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
1776 	ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
1777 	return 0;
1778 }
1779 
1780 static int snd_cs46xx_vol_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1781 {
1782 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1783 	int reg = kcontrol->private_value;
1784 	unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 |
1785 			    (0xffff - ucontrol->value.integer.value[1]));
1786 	unsigned int old = snd_cs46xx_peek(chip, reg);
1787 	int change = (old != val);
1788 
1789 	if (change) {
1790 		snd_cs46xx_poke(chip, reg, val);
1791 	}
1792 
1793 	return change;
1794 }
1795 
1796 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1797 
1798 static int snd_cs46xx_vol_dac_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1799 {
1800 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1801 
1802 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
1803 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
1804 
1805 	return 0;
1806 }
1807 
1808 static int snd_cs46xx_vol_dac_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1809 {
1810 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1811 	int change = 0;
1812 
1813 	if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
1814 	    chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
1815 		cs46xx_dsp_set_dac_volume(chip,
1816 					  ucontrol->value.integer.value[0],
1817 					  ucontrol->value.integer.value[1]);
1818 		change = 1;
1819 	}
1820 
1821 	return change;
1822 }
1823 
1824 #if 0
1825 static int snd_cs46xx_vol_iec958_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1826 {
1827 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1828 
1829 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
1830 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
1831 	return 0;
1832 }
1833 
1834 static int snd_cs46xx_vol_iec958_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1835 {
1836 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1837 	int change = 0;
1838 
1839 	if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
1840 	    chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
1841 		cs46xx_dsp_set_iec958_volume (chip,
1842 					      ucontrol->value.integer.value[0],
1843 					      ucontrol->value.integer.value[1]);
1844 		change = 1;
1845 	}
1846 
1847 	return change;
1848 }
1849 #endif
1850 
1851 static int snd_mixer_boolean_info(snd_kcontrol_t *kcontrol,
1852 				  snd_ctl_elem_info_t *uinfo)
1853 {
1854 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1855 	uinfo->count = 1;
1856 	uinfo->value.integer.min = 0;
1857 	uinfo->value.integer.max = 1;
1858 	return 0;
1859 }
1860 
1861 static int snd_cs46xx_iec958_get(snd_kcontrol_t *kcontrol,
1862                                  snd_ctl_elem_value_t *ucontrol)
1863 {
1864 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1865 	int reg = kcontrol->private_value;
1866 
1867 	if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
1868 		ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1869 	else
1870 		ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
1871 
1872 	return 0;
1873 }
1874 
1875 static int snd_cs46xx_iec958_put(snd_kcontrol_t *kcontrol,
1876                                   snd_ctl_elem_value_t *ucontrol)
1877 {
1878 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1879 	int change, res;
1880 
1881 	switch (kcontrol->private_value) {
1882 	case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
1883 		down (&chip->spos_mutex);
1884 		change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1885 		if (ucontrol->value.integer.value[0] && !change)
1886 			cs46xx_dsp_enable_spdif_out(chip);
1887 		else if (change && !ucontrol->value.integer.value[0])
1888 			cs46xx_dsp_disable_spdif_out(chip);
1889 
1890 		res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
1891 		up (&chip->spos_mutex);
1892 		break;
1893 	case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
1894 		change = chip->dsp_spos_instance->spdif_status_in;
1895 		if (ucontrol->value.integer.value[0] && !change) {
1896 			cs46xx_dsp_enable_spdif_in(chip);
1897 			/* restore volume */
1898 		}
1899 		else if (change && !ucontrol->value.integer.value[0])
1900 			cs46xx_dsp_disable_spdif_in(chip);
1901 
1902 		res = (change != chip->dsp_spos_instance->spdif_status_in);
1903 		break;
1904 	default:
1905 		res = -EINVAL;
1906 		snd_assert(0, (void)0);
1907 	}
1908 
1909 	return res;
1910 }
1911 
1912 static int snd_cs46xx_adc_capture_get(snd_kcontrol_t *kcontrol,
1913                                       snd_ctl_elem_value_t *ucontrol)
1914 {
1915 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1916 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
1917 
1918 	if (ins->adc_input != NULL)
1919 		ucontrol->value.integer.value[0] = 1;
1920 	else
1921 		ucontrol->value.integer.value[0] = 0;
1922 
1923 	return 0;
1924 }
1925 
1926 static int snd_cs46xx_adc_capture_put(snd_kcontrol_t *kcontrol,
1927                                       snd_ctl_elem_value_t *ucontrol)
1928 {
1929 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1930 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
1931 	int change = 0;
1932 
1933 	if (ucontrol->value.integer.value[0] && !ins->adc_input) {
1934 		cs46xx_dsp_enable_adc_capture(chip);
1935 		change = 1;
1936 	} else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
1937 		cs46xx_dsp_disable_adc_capture(chip);
1938 		change = 1;
1939 	}
1940 	return change;
1941 }
1942 
1943 static int snd_cs46xx_pcm_capture_get(snd_kcontrol_t *kcontrol,
1944                                       snd_ctl_elem_value_t *ucontrol)
1945 {
1946 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1947 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
1948 
1949 	if (ins->pcm_input != NULL)
1950 		ucontrol->value.integer.value[0] = 1;
1951 	else
1952 		ucontrol->value.integer.value[0] = 0;
1953 
1954 	return 0;
1955 }
1956 
1957 
1958 static int snd_cs46xx_pcm_capture_put(snd_kcontrol_t *kcontrol,
1959                                       snd_ctl_elem_value_t *ucontrol)
1960 {
1961 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1962 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
1963 	int change = 0;
1964 
1965 	if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
1966 		cs46xx_dsp_enable_pcm_capture(chip);
1967 		change = 1;
1968 	} else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
1969 		cs46xx_dsp_disable_pcm_capture(chip);
1970 		change = 1;
1971 	}
1972 
1973 	return change;
1974 }
1975 
1976 static int snd_herc_spdif_select_get(snd_kcontrol_t *kcontrol,
1977                                      snd_ctl_elem_value_t *ucontrol)
1978 {
1979 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1980 
1981 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1982 
1983 	if (val1 & EGPIODR_GPOE0)
1984 		ucontrol->value.integer.value[0] = 1;
1985 	else
1986 		ucontrol->value.integer.value[0] = 0;
1987 
1988 	return 0;
1989 }
1990 
1991 /*
1992  *	Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
1993  */
1994 static int snd_herc_spdif_select_put(snd_kcontrol_t *kcontrol,
1995                                        snd_ctl_elem_value_t *ucontrol)
1996 {
1997 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
1998 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1999 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
2000 
2001 	if (ucontrol->value.integer.value[0]) {
2002 		/* optical is default */
2003 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
2004 				   EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
2005 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
2006 				   EGPIOPTR_GPPT0 | val2); /* open-drain on output */
2007 	} else {
2008 		/* coaxial */
2009 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
2010 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
2011 	}
2012 
2013 	/* checking diff from the EGPIO direction register
2014 	   should be enough */
2015 	return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
2016 }
2017 
2018 
2019 static int snd_cs46xx_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
2020 {
2021 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2022 	uinfo->count = 1;
2023 	return 0;
2024 }
2025 
2026 static int snd_cs46xx_spdif_default_get(snd_kcontrol_t * kcontrol,
2027 					snd_ctl_elem_value_t * ucontrol)
2028 {
2029 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2030 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
2031 
2032 	down (&chip->spos_mutex);
2033 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
2034 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
2035 	ucontrol->value.iec958.status[2] = 0;
2036 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
2037 	up (&chip->spos_mutex);
2038 
2039 	return 0;
2040 }
2041 
2042 static int snd_cs46xx_spdif_default_put(snd_kcontrol_t * kcontrol,
2043 					snd_ctl_elem_value_t * ucontrol)
2044 {
2045 	cs46xx_t * chip = snd_kcontrol_chip(kcontrol);
2046 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
2047 	unsigned int val;
2048 	int change;
2049 
2050 	down (&chip->spos_mutex);
2051 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2052 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
2053 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
2054 		/* left and right validity bit */
2055 		(1 << 13) | (1 << 12);
2056 
2057 
2058 	change = (unsigned int)ins->spdif_csuv_default != val;
2059 	ins->spdif_csuv_default = val;
2060 
2061 	if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
2062 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2063 
2064 	up (&chip->spos_mutex);
2065 
2066 	return change;
2067 }
2068 
2069 static int snd_cs46xx_spdif_mask_get(snd_kcontrol_t * kcontrol,
2070 				     snd_ctl_elem_value_t * ucontrol)
2071 {
2072 	ucontrol->value.iec958.status[0] = 0xff;
2073 	ucontrol->value.iec958.status[1] = 0xff;
2074 	ucontrol->value.iec958.status[2] = 0x00;
2075 	ucontrol->value.iec958.status[3] = 0xff;
2076 	return 0;
2077 }
2078 
2079 static int snd_cs46xx_spdif_stream_get(snd_kcontrol_t * kcontrol,
2080                                          snd_ctl_elem_value_t * ucontrol)
2081 {
2082 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2083 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
2084 
2085 	down (&chip->spos_mutex);
2086 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
2087 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
2088 	ucontrol->value.iec958.status[2] = 0;
2089 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
2090 	up (&chip->spos_mutex);
2091 
2092 	return 0;
2093 }
2094 
2095 static int snd_cs46xx_spdif_stream_put(snd_kcontrol_t * kcontrol,
2096                                         snd_ctl_elem_value_t * ucontrol)
2097 {
2098 	cs46xx_t * chip = snd_kcontrol_chip(kcontrol);
2099 	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
2100 	unsigned int val;
2101 	int change;
2102 
2103 	down (&chip->spos_mutex);
2104 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2105 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
2106 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
2107 		/* left and right validity bit */
2108 		(1 << 13) | (1 << 12);
2109 
2110 
2111 	change = ins->spdif_csuv_stream != val;
2112 	ins->spdif_csuv_stream = val;
2113 
2114 	if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
2115 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2116 
2117 	up (&chip->spos_mutex);
2118 
2119 	return change;
2120 }
2121 
2122 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2123 
2124 
2125 #ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
2126 static int snd_cs46xx_egpio_select_info(snd_kcontrol_t *kcontrol,
2127                                         snd_ctl_elem_info_t *uinfo)
2128 {
2129 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2130 	uinfo->count = 1;
2131 	uinfo->value.integer.min = 0;
2132 	uinfo->value.integer.max = 8;
2133 	return 0;
2134 }
2135 
2136 static int snd_cs46xx_egpio_select_get(snd_kcontrol_t *kcontrol,
2137                                        snd_ctl_elem_value_t *ucontrol)
2138 {
2139 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2140 	ucontrol->value.integer.value[0] = chip->current_gpio;
2141 
2142 	return 0;
2143 }
2144 
2145 static int snd_cs46xx_egpio_select_put(snd_kcontrol_t *kcontrol,
2146                                        snd_ctl_elem_value_t *ucontrol)
2147 {
2148 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2149 	int change = (chip->current_gpio != ucontrol->value.integer.value[0]);
2150 	chip->current_gpio = ucontrol->value.integer.value[0];
2151 
2152 	return change;
2153 }
2154 
2155 
2156 static int snd_cs46xx_egpio_get(snd_kcontrol_t *kcontrol,
2157                                        snd_ctl_elem_value_t *ucontrol)
2158 {
2159 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2160 	int reg = kcontrol->private_value;
2161 
2162 	snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);
2163 	ucontrol->value.integer.value[0] =
2164 		(snd_cs46xx_peekBA0(chip, reg) & (1 << chip->current_gpio)) ? 1 : 0;
2165 
2166 	return 0;
2167 }
2168 
2169 static int snd_cs46xx_egpio_put(snd_kcontrol_t *kcontrol,
2170                                        snd_ctl_elem_value_t *ucontrol)
2171 {
2172 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2173 	int reg = kcontrol->private_value;
2174 	int val = snd_cs46xx_peekBA0(chip, reg);
2175 	int oldval = val;
2176 	snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);
2177 
2178 	if (ucontrol->value.integer.value[0])
2179 		val |= (1 << chip->current_gpio);
2180 	else
2181 		val &= ~(1 << chip->current_gpio);
2182 
2183 	snd_cs46xx_pokeBA0(chip, reg,val);
2184 	snd_printdd ("put: val %08x oldval %08x\n",val,oldval);
2185 
2186 	return (oldval != val);
2187 }
2188 #endif /* CONFIG_SND_CS46XX_DEBUG_GPIO */
2189 
2190 static snd_kcontrol_new_t snd_cs46xx_controls[] __devinitdata = {
2191 {
2192 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2193 	.name = "DAC Volume",
2194 	.info = snd_cs46xx_vol_info,
2195 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2196 	.get = snd_cs46xx_vol_get,
2197 	.put = snd_cs46xx_vol_put,
2198 	.private_value = BA1_PVOL,
2199 #else
2200 	.get = snd_cs46xx_vol_dac_get,
2201 	.put = snd_cs46xx_vol_dac_put,
2202 #endif
2203 },
2204 
2205 {
2206 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2207 	.name = "ADC Volume",
2208 	.info = snd_cs46xx_vol_info,
2209 	.get = snd_cs46xx_vol_get,
2210 	.put = snd_cs46xx_vol_put,
2211 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2212 	.private_value = BA1_CVOL,
2213 #else
2214 	.private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
2215 #endif
2216 },
2217 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2218 {
2219 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2220 	.name = "ADC Capture Switch",
2221 	.info = snd_mixer_boolean_info,
2222 	.get = snd_cs46xx_adc_capture_get,
2223 	.put = snd_cs46xx_adc_capture_put
2224 },
2225 {
2226 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2227 	.name = "DAC Capture Switch",
2228 	.info = snd_mixer_boolean_info,
2229 	.get = snd_cs46xx_pcm_capture_get,
2230 	.put = snd_cs46xx_pcm_capture_put
2231 },
2232 {
2233 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2234 	.name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
2235 	.info = snd_mixer_boolean_info,
2236 	.get = snd_cs46xx_iec958_get,
2237 	.put = snd_cs46xx_iec958_put,
2238 	.private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
2239 },
2240 {
2241 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2242 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
2243 	.info = snd_mixer_boolean_info,
2244 	.get = snd_cs46xx_iec958_get,
2245 	.put = snd_cs46xx_iec958_put,
2246 	.private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
2247 },
2248 #if 0
2249 /* Input IEC958 volume does not work for the moment. (Benny) */
2250 {
2251 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2252 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
2253 	.info = snd_cs46xx_vol_info,
2254 	.get = snd_cs46xx_vol_iec958_get,
2255 	.put = snd_cs46xx_vol_iec958_put,
2256 	.private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
2257 },
2258 #endif
2259 {
2260 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2261 	.name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2262 	.info =	 snd_cs46xx_spdif_info,
2263 	.get =	 snd_cs46xx_spdif_default_get,
2264 	.put =   snd_cs46xx_spdif_default_put,
2265 },
2266 {
2267 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2268 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2269 	.info =	 snd_cs46xx_spdif_info,
2270         .get =	 snd_cs46xx_spdif_mask_get,
2271 	.access = SNDRV_CTL_ELEM_ACCESS_READ
2272 },
2273 {
2274 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2275 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2276 	.info =	 snd_cs46xx_spdif_info,
2277 	.get =	 snd_cs46xx_spdif_stream_get,
2278 	.put =	 snd_cs46xx_spdif_stream_put
2279 },
2280 
2281 #endif
2282 #ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
2283 {
2284 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2285 	.name = "EGPIO select",
2286 	.info = snd_cs46xx_egpio_select_info,
2287 	.get = snd_cs46xx_egpio_select_get,
2288 	.put = snd_cs46xx_egpio_select_put,
2289 	.private_value = 0,
2290 },
2291 {
2292 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2293 	.name = "EGPIO Input/Output",
2294 	.info = snd_mixer_boolean_info,
2295 	.get = snd_cs46xx_egpio_get,
2296 	.put = snd_cs46xx_egpio_put,
2297 	.private_value = BA0_EGPIODR,
2298 },
2299 {
2300 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2301 	.name = "EGPIO CMOS/Open drain",
2302 	.info = snd_mixer_boolean_info,
2303 	.get = snd_cs46xx_egpio_get,
2304 	.put = snd_cs46xx_egpio_put,
2305 	.private_value = BA0_EGPIOPTR,
2306 },
2307 {
2308 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2309 	.name = "EGPIO On/Off",
2310 	.info = snd_mixer_boolean_info,
2311 	.get = snd_cs46xx_egpio_get,
2312 	.put = snd_cs46xx_egpio_put,
2313 	.private_value = BA0_EGPIOSR,
2314 },
2315 #endif
2316 };
2317 
2318 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2319 /* set primary cs4294 codec into Extended Audio Mode */
2320 static int snd_cs46xx_front_dup_get(snd_kcontrol_t *kcontrol,
2321 				    snd_ctl_elem_value_t *ucontrol)
2322 {
2323 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2324 	unsigned short val;
2325 	val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
2326 	ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
2327 	return 0;
2328 }
2329 
2330 static int snd_cs46xx_front_dup_put(snd_kcontrol_t *kcontrol,
2331 				    snd_ctl_elem_value_t *ucontrol)
2332 {
2333 	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
2334 	return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2335 				    AC97_CSR_ACMODE, 0x200,
2336 				    ucontrol->value.integer.value[0] ? 0 : 0x200);
2337 }
2338 
2339 static snd_kcontrol_new_t snd_cs46xx_front_dup_ctl = {
2340 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2341 	.name = "Duplicate Front",
2342 	.info = snd_mixer_boolean_info,
2343 	.get = snd_cs46xx_front_dup_get,
2344 	.put = snd_cs46xx_front_dup_put,
2345 };
2346 #endif
2347 
2348 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2349 /* Only available on the Hercules Game Theater XP soundcard */
2350 static snd_kcontrol_new_t snd_hercules_controls[] __devinitdata = {
2351 {
2352 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2353 	.name = "Optical/Coaxial SPDIF Input Switch",
2354 	.info = snd_mixer_boolean_info,
2355 	.get = snd_herc_spdif_select_get,
2356 	.put = snd_herc_spdif_select_put,
2357 },
2358 };
2359 
2360 
2361 static void snd_cs46xx_codec_reset (ac97_t * ac97)
2362 {
2363 	unsigned long end_time;
2364 	int err;
2365 
2366 	/* reset to defaults */
2367 	snd_ac97_write(ac97, AC97_RESET, 0);
2368 
2369 	/* set the desired CODEC mode */
2370 	if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
2371 		snd_printdd("cs46xx: CODOEC1 mode %04x\n",0x0);
2372 		snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x0);
2373 	} else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
2374 		snd_printdd("cs46xx: CODOEC2 mode %04x\n",0x3);
2375 		snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x3);
2376 	} else {
2377 		snd_assert(0); /* should never happen ... */
2378 	}
2379 
2380 	udelay(50);
2381 
2382 	/* it's necessary to wait awhile until registers are accessible after RESET */
2383 	/* because the PCM or MASTER volume registers can be modified, */
2384 	/* the REC_GAIN register is used for tests */
2385 	end_time = jiffies + HZ;
2386 	do {
2387 		unsigned short ext_mid;
2388 
2389 		/* use preliminary reads to settle the communication */
2390 		snd_ac97_read(ac97, AC97_RESET);
2391 		snd_ac97_read(ac97, AC97_VENDOR_ID1);
2392 		snd_ac97_read(ac97, AC97_VENDOR_ID2);
2393 		/* modem? */
2394 		ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2395 		if (ext_mid != 0xffff && (ext_mid & 1) != 0)
2396 			return;
2397 
2398 		/* test if we can write to the record gain volume register */
2399 		snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
2400 		if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
2401 			return;
2402 
2403 		msleep(10);
2404 	} while (time_after_eq(end_time, jiffies));
2405 
2406 	snd_printk("CS46xx secondary codec dont respond!\n");
2407 }
2408 #endif
2409 
2410 static int __devinit cs46xx_detect_codec(cs46xx_t *chip, int codec)
2411 {
2412 	int idx, err;
2413 	ac97_template_t ac97;
2414 
2415 	memset(&ac97, 0, sizeof(ac97));
2416 	ac97.private_data = chip;
2417 	ac97.private_free = snd_cs46xx_mixer_free_ac97;
2418 	ac97.num = codec;
2419 	if (chip->amplifier_ctrl == amp_voyetra)
2420 		ac97.scaps = AC97_SCAP_INV_EAPD;
2421 
2422 	if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
2423 		snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
2424 		udelay(10);
2425 		if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
2426 			snd_printdd("snd_cs46xx: seconadry codec not present\n");
2427 			return -ENXIO;
2428 		}
2429 	}
2430 
2431 	snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
2432 	for (idx = 0; idx < 100; ++idx) {
2433 		if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
2434 			err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
2435 			return err;
2436 		}
2437 		msleep(10);
2438 	}
2439 	snd_printdd("snd_cs46xx: codec %d detection timeout\n", codec);
2440 	return -ENXIO;
2441 }
2442 
2443 int __devinit snd_cs46xx_mixer(cs46xx_t *chip, int spdif_device)
2444 {
2445 	snd_card_t *card = chip->card;
2446 	snd_ctl_elem_id_t id;
2447 	int err;
2448 	unsigned int idx;
2449 	static ac97_bus_ops_t ops = {
2450 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2451 		.reset = snd_cs46xx_codec_reset,
2452 #endif
2453 		.write = snd_cs46xx_ac97_write,
2454 		.read = snd_cs46xx_ac97_read,
2455 	};
2456 
2457 	/* detect primary codec */
2458 	chip->nr_ac97_codecs = 0;
2459 	snd_printdd("snd_cs46xx: detecting primary codec\n");
2460 	if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
2461 		return err;
2462 	chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
2463 
2464 	if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
2465 		return -ENXIO;
2466 	chip->nr_ac97_codecs = 1;
2467 
2468 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2469 	snd_printdd("snd_cs46xx: detecting seconadry codec\n");
2470 	/* try detect a secondary codec */
2471 	if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
2472 		chip->nr_ac97_codecs = 2;
2473 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2474 
2475 	/* add cs4630 mixer controls */
2476 	for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
2477 		snd_kcontrol_t *kctl;
2478 		kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
2479 		if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
2480 			kctl->id.device = spdif_device;
2481 		if ((err = snd_ctl_add(card, kctl)) < 0)
2482 			return err;
2483 	}
2484 
2485 	/* get EAPD mixer switch (for voyetra hack) */
2486 	memset(&id, 0, sizeof(id));
2487 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2488 	strcpy(id.name, "External Amplifier");
2489 	chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
2490 
2491 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2492 	if (chip->nr_ac97_codecs == 1) {
2493 		unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
2494 		if (id2 == 0x592b || id2 == 0x592d) {
2495 			err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
2496 			if (err < 0)
2497 				return err;
2498 			snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2499 					     AC97_CSR_ACMODE, 0x200);
2500 		}
2501 	}
2502 	/* do soundcard specific mixer setup */
2503 	if (chip->mixer_init) {
2504 		snd_printdd ("calling chip->mixer_init(chip);\n");
2505 		chip->mixer_init(chip);
2506 	}
2507 #endif
2508 
2509  	/* turn on amplifier */
2510 	chip->amplifier_ctrl(chip, 1);
2511 
2512 	return 0;
2513 }
2514 
2515 /*
2516  *  RawMIDI interface
2517  */
2518 
2519 static void snd_cs46xx_midi_reset(cs46xx_t *chip)
2520 {
2521 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
2522 	udelay(100);
2523 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2524 }
2525 
2526 static int snd_cs46xx_midi_input_open(snd_rawmidi_substream_t * substream)
2527 {
2528 	cs46xx_t *chip = substream->rmidi->private_data;
2529 
2530 	chip->active_ctrl(chip, 1);
2531 	spin_lock_irq(&chip->reg_lock);
2532 	chip->uartm |= CS46XX_MODE_INPUT;
2533 	chip->midcr |= MIDCR_RXE;
2534 	chip->midi_input = substream;
2535 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2536 		snd_cs46xx_midi_reset(chip);
2537 	} else {
2538 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2539 	}
2540 	spin_unlock_irq(&chip->reg_lock);
2541 	return 0;
2542 }
2543 
2544 static int snd_cs46xx_midi_input_close(snd_rawmidi_substream_t * substream)
2545 {
2546 	cs46xx_t *chip = substream->rmidi->private_data;
2547 
2548 	spin_lock_irq(&chip->reg_lock);
2549 	chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
2550 	chip->midi_input = NULL;
2551 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2552 		snd_cs46xx_midi_reset(chip);
2553 	} else {
2554 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2555 	}
2556 	chip->uartm &= ~CS46XX_MODE_INPUT;
2557 	spin_unlock_irq(&chip->reg_lock);
2558 	chip->active_ctrl(chip, -1);
2559 	return 0;
2560 }
2561 
2562 static int snd_cs46xx_midi_output_open(snd_rawmidi_substream_t * substream)
2563 {
2564 	cs46xx_t *chip = substream->rmidi->private_data;
2565 
2566 	chip->active_ctrl(chip, 1);
2567 
2568 	spin_lock_irq(&chip->reg_lock);
2569 	chip->uartm |= CS46XX_MODE_OUTPUT;
2570 	chip->midcr |= MIDCR_TXE;
2571 	chip->midi_output = substream;
2572 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2573 		snd_cs46xx_midi_reset(chip);
2574 	} else {
2575 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2576 	}
2577 	spin_unlock_irq(&chip->reg_lock);
2578 	return 0;
2579 }
2580 
2581 static int snd_cs46xx_midi_output_close(snd_rawmidi_substream_t * substream)
2582 {
2583 	cs46xx_t *chip = substream->rmidi->private_data;
2584 
2585 	spin_lock_irq(&chip->reg_lock);
2586 	chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
2587 	chip->midi_output = NULL;
2588 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2589 		snd_cs46xx_midi_reset(chip);
2590 	} else {
2591 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2592 	}
2593 	chip->uartm &= ~CS46XX_MODE_OUTPUT;
2594 	spin_unlock_irq(&chip->reg_lock);
2595 	chip->active_ctrl(chip, -1);
2596 	return 0;
2597 }
2598 
2599 static void snd_cs46xx_midi_input_trigger(snd_rawmidi_substream_t * substream, int up)
2600 {
2601 	unsigned long flags;
2602 	cs46xx_t *chip = substream->rmidi->private_data;
2603 
2604 	spin_lock_irqsave(&chip->reg_lock, flags);
2605 	if (up) {
2606 		if ((chip->midcr & MIDCR_RIE) == 0) {
2607 			chip->midcr |= MIDCR_RIE;
2608 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2609 		}
2610 	} else {
2611 		if (chip->midcr & MIDCR_RIE) {
2612 			chip->midcr &= ~MIDCR_RIE;
2613 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2614 		}
2615 	}
2616 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2617 }
2618 
2619 static void snd_cs46xx_midi_output_trigger(snd_rawmidi_substream_t * substream, int up)
2620 {
2621 	unsigned long flags;
2622 	cs46xx_t *chip = substream->rmidi->private_data;
2623 	unsigned char byte;
2624 
2625 	spin_lock_irqsave(&chip->reg_lock, flags);
2626 	if (up) {
2627 		if ((chip->midcr & MIDCR_TIE) == 0) {
2628 			chip->midcr |= MIDCR_TIE;
2629 			/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2630 			while ((chip->midcr & MIDCR_TIE) &&
2631 			       (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
2632 				if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2633 					chip->midcr &= ~MIDCR_TIE;
2634 				} else {
2635 					snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
2636 				}
2637 			}
2638 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2639 		}
2640 	} else {
2641 		if (chip->midcr & MIDCR_TIE) {
2642 			chip->midcr &= ~MIDCR_TIE;
2643 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2644 		}
2645 	}
2646 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2647 }
2648 
2649 static snd_rawmidi_ops_t snd_cs46xx_midi_output =
2650 {
2651 	.open =		snd_cs46xx_midi_output_open,
2652 	.close =	snd_cs46xx_midi_output_close,
2653 	.trigger =	snd_cs46xx_midi_output_trigger,
2654 };
2655 
2656 static snd_rawmidi_ops_t snd_cs46xx_midi_input =
2657 {
2658 	.open =		snd_cs46xx_midi_input_open,
2659 	.close =	snd_cs46xx_midi_input_close,
2660 	.trigger =	snd_cs46xx_midi_input_trigger,
2661 };
2662 
2663 int __devinit snd_cs46xx_midi(cs46xx_t *chip, int device, snd_rawmidi_t **rrawmidi)
2664 {
2665 	snd_rawmidi_t *rmidi;
2666 	int err;
2667 
2668 	if (rrawmidi)
2669 		*rrawmidi = NULL;
2670 	if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
2671 		return err;
2672 	strcpy(rmidi->name, "CS46XX");
2673 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
2674 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
2675 	rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
2676 	rmidi->private_data = chip;
2677 	chip->rmidi = rmidi;
2678 	if (rrawmidi)
2679 		*rrawmidi = NULL;
2680 	return 0;
2681 }
2682 
2683 
2684 /*
2685  * gameport interface
2686  */
2687 
2688 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
2689 
2690 static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
2691 {
2692 	cs46xx_t *chip = gameport_get_port_data(gameport);
2693 
2694 	snd_assert(chip, return);
2695 	snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
2696 }
2697 
2698 static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
2699 {
2700 	cs46xx_t *chip = gameport_get_port_data(gameport);
2701 
2702 	snd_assert(chip, return 0);
2703 	return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
2704 }
2705 
2706 static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
2707 {
2708 	cs46xx_t *chip = gameport_get_port_data(gameport);
2709 	unsigned js1, js2, jst;
2710 
2711 	snd_assert(chip, return 0);
2712 
2713 	js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
2714 	js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
2715 	jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
2716 
2717 	*buttons = (~jst >> 4) & 0x0F;
2718 
2719 	axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
2720 	axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
2721 	axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
2722 	axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
2723 
2724 	for(jst=0;jst<4;++jst)
2725 		if(axes[jst]==0xFFFF) axes[jst] = -1;
2726 	return 0;
2727 }
2728 
2729 static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
2730 {
2731 	switch (mode) {
2732 	case GAMEPORT_MODE_COOKED:
2733 		return 0;
2734 	case GAMEPORT_MODE_RAW:
2735 		return 0;
2736 	default:
2737 		return -1;
2738 	}
2739 	return 0;
2740 }
2741 
2742 int __devinit snd_cs46xx_gameport(cs46xx_t *chip)
2743 {
2744 	struct gameport *gp;
2745 
2746 	chip->gameport = gp = gameport_allocate_port();
2747 	if (!gp) {
2748 		printk(KERN_ERR "cs46xx: cannot allocate memory for gameport\n");
2749 		return -ENOMEM;
2750 	}
2751 
2752 	gameport_set_name(gp, "CS46xx Gameport");
2753 	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
2754 	gameport_set_dev_parent(gp, &chip->pci->dev);
2755 	gameport_set_port_data(gp, chip);
2756 
2757 	gp->open = snd_cs46xx_gameport_open;
2758 	gp->read = snd_cs46xx_gameport_read;
2759 	gp->trigger = snd_cs46xx_gameport_trigger;
2760 	gp->cooked_read = snd_cs46xx_gameport_cooked_read;
2761 
2762 	snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
2763 	snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
2764 
2765 	gameport_register_port(gp);
2766 
2767 	return 0;
2768 }
2769 
2770 static inline void snd_cs46xx_remove_gameport(cs46xx_t *chip)
2771 {
2772 	if (chip->gameport) {
2773 		gameport_unregister_port(chip->gameport);
2774 		chip->gameport = NULL;
2775 	}
2776 }
2777 #else
2778 int __devinit snd_cs46xx_gameport(cs46xx_t *chip) { return -ENOSYS; }
2779 static inline void snd_cs46xx_remove_gameport(cs46xx_t *chip) { }
2780 #endif /* CONFIG_GAMEPORT */
2781 
2782 /*
2783  *  proc interface
2784  */
2785 
2786 static long snd_cs46xx_io_read(snd_info_entry_t *entry, void *file_private_data,
2787 			       struct file *file, char __user *buf,
2788 			       unsigned long count, unsigned long pos)
2789 {
2790 	long size;
2791 	snd_cs46xx_region_t *region = (snd_cs46xx_region_t *)entry->private_data;
2792 
2793 	size = count;
2794 	if (pos + (size_t)size > region->size)
2795 		size = region->size - pos;
2796 	if (size > 0) {
2797 		if (copy_to_user_fromio(buf, region->remap_addr + pos, size))
2798 			return -EFAULT;
2799 	}
2800 	return size;
2801 }
2802 
2803 static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
2804 	.read = snd_cs46xx_io_read,
2805 };
2806 
2807 static int __devinit snd_cs46xx_proc_init(snd_card_t * card, cs46xx_t *chip)
2808 {
2809 	snd_info_entry_t *entry;
2810 	int idx;
2811 
2812 	for (idx = 0; idx < 5; idx++) {
2813 		snd_cs46xx_region_t *region = &chip->region.idx[idx];
2814 		if (! snd_card_proc_new(card, region->name, &entry)) {
2815 			entry->content = SNDRV_INFO_CONTENT_DATA;
2816 			entry->private_data = chip;
2817 			entry->c.ops = &snd_cs46xx_proc_io_ops;
2818 			entry->size = region->size;
2819 			entry->mode = S_IFREG | S_IRUSR;
2820 		}
2821 	}
2822 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2823 	cs46xx_dsp_proc_init(card, chip);
2824 #endif
2825 	return 0;
2826 }
2827 
2828 static int snd_cs46xx_proc_done(cs46xx_t *chip)
2829 {
2830 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2831 	cs46xx_dsp_proc_done(chip);
2832 #endif
2833 	return 0;
2834 }
2835 
2836 /*
2837  * stop the h/w
2838  */
2839 static void snd_cs46xx_hw_stop(cs46xx_t *chip)
2840 {
2841 	unsigned int tmp;
2842 
2843 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
2844 	tmp &= ~0x0000f03f;
2845 	tmp |=  0x00000010;
2846 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt disable */
2847 
2848 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
2849 	tmp &= ~0x0000003f;
2850 	tmp |=  0x00000011;
2851 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt disable */
2852 
2853 	/*
2854          *  Stop playback DMA.
2855 	 */
2856 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
2857 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
2858 
2859 	/*
2860          *  Stop capture DMA.
2861 	 */
2862 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
2863 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
2864 
2865 	/*
2866          *  Reset the processor.
2867          */
2868 	snd_cs46xx_reset(chip);
2869 
2870 	snd_cs46xx_proc_stop(chip);
2871 
2872 	/*
2873 	 *  Power down the PLL.
2874 	 */
2875 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2876 
2877 	/*
2878 	 *  Turn off the Processor by turning off the software clock enable flag in
2879 	 *  the clock control register.
2880 	 */
2881 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
2882 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
2883 }
2884 
2885 
2886 static int snd_cs46xx_free(cs46xx_t *chip)
2887 {
2888 	int idx;
2889 
2890 	snd_assert(chip != NULL, return -EINVAL);
2891 
2892 	if (chip->active_ctrl)
2893 		chip->active_ctrl(chip, 1);
2894 
2895 	snd_cs46xx_remove_gameport(chip);
2896 
2897 	if (chip->amplifier_ctrl)
2898 		chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
2899 
2900 	snd_cs46xx_proc_done(chip);
2901 
2902 	if (chip->region.idx[0].resource)
2903 		snd_cs46xx_hw_stop(chip);
2904 
2905 	for (idx = 0; idx < 5; idx++) {
2906 		snd_cs46xx_region_t *region = &chip->region.idx[idx];
2907 		if (region->remap_addr)
2908 			iounmap(region->remap_addr);
2909 		if (region->resource) {
2910 			release_resource(region->resource);
2911 			kfree_nocheck(region->resource);
2912 		}
2913 	}
2914 	if (chip->irq >= 0)
2915 		free_irq(chip->irq, (void *)chip);
2916 
2917 	if (chip->active_ctrl)
2918 		chip->active_ctrl(chip, -chip->amplifier);
2919 
2920 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2921 	if (chip->dsp_spos_instance) {
2922 		cs46xx_dsp_spos_destroy(chip);
2923 		chip->dsp_spos_instance = NULL;
2924 	}
2925 #endif
2926 
2927 	pci_disable_device(chip->pci);
2928 	kfree(chip);
2929 	return 0;
2930 }
2931 
2932 static int snd_cs46xx_dev_free(snd_device_t *device)
2933 {
2934 	cs46xx_t *chip = device->device_data;
2935 	return snd_cs46xx_free(chip);
2936 }
2937 
2938 /*
2939  *  initialize chip
2940  */
2941 static int snd_cs46xx_chip_init(cs46xx_t *chip)
2942 {
2943 	int timeout;
2944 
2945 	/*
2946 	 *  First, blast the clock control register to zero so that the PLL starts
2947          *  out in a known state, and blast the master serial port control register
2948          *  to zero so that the serial ports also start out in a known state.
2949          */
2950         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2951         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
2952 
2953 	/*
2954 	 *  If we are in AC97 mode, then we must set the part to a host controlled
2955          *  AC-link.  Otherwise, we won't be able to bring up the link.
2956          */
2957 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2958 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 |
2959 			   SERACC_TWO_CODECS);	/* 2.00 dual codecs */
2960 	/* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
2961 #else
2962 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
2963 #endif
2964 
2965         /*
2966          *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
2967          *  spec) and then drive it high.  This is done for non AC97 modes since
2968          *  there might be logic external to the CS461x that uses the ARST# line
2969          *  for a reset.
2970          */
2971 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
2972 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2973 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
2974 #endif
2975 	udelay(50);
2976 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
2977 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2978 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
2979 #endif
2980 
2981 	/*
2982 	 *  The first thing we do here is to enable sync generation.  As soon
2983 	 *  as we start receiving bit clock, we'll start producing the SYNC
2984 	 *  signal.
2985 	 */
2986 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
2987 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2988 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
2989 #endif
2990 
2991 	/*
2992 	 *  Now wait for a short while to allow the AC97 part to start
2993 	 *  generating bit clock (so we don't try to start the PLL without an
2994 	 *  input clock).
2995 	 */
2996 	mdelay(10);
2997 
2998 	/*
2999 	 *  Set the serial port timing configuration, so that
3000 	 *  the clock control circuit gets its clock from the correct place.
3001 	 */
3002 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
3003 
3004 	/*
3005 	 *  Write the selected clock control setup to the hardware.  Do not turn on
3006 	 *  SWCE yet (if requested), so that the devices clocked by the output of
3007 	 *  PLL are not clocked until the PLL is stable.
3008 	 */
3009 	snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
3010 	snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
3011 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
3012 
3013 	/*
3014 	 *  Power up the PLL.
3015 	 */
3016 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
3017 
3018 	/*
3019          *  Wait until the PLL has stabilized.
3020 	 */
3021 	msleep(100);
3022 
3023 	/*
3024 	 *  Turn on clocking of the core so that we can setup the serial ports.
3025 	 */
3026 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
3027 
3028 	/*
3029 	 * Enable FIFO  Host Bypass
3030 	 */
3031 	snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
3032 
3033 	/*
3034 	 *  Fill the serial port FIFOs with silence.
3035 	 */
3036 	snd_cs46xx_clear_serial_FIFOs(chip);
3037 
3038 	/*
3039 	 *  Set the serial port FIFO pointer to the first sample in the FIFO.
3040 	 */
3041 	/* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
3042 
3043 	/*
3044 	 *  Write the serial port configuration to the part.  The master
3045 	 *  enable bit is not set until all other values have been written.
3046 	 */
3047 	snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
3048 	snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
3049 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
3050 
3051 
3052 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3053 	snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
3054 	snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
3055 	snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
3056 	snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
3057 	snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
3058 #endif
3059 
3060 	mdelay(5);
3061 
3062 
3063 	/*
3064 	 * Wait for the codec ready signal from the AC97 codec.
3065 	 */
3066 	timeout = 150;
3067 	while (timeout-- > 0) {
3068 		/*
3069 		 *  Read the AC97 status register to see if we've seen a CODEC READY
3070 		 *  signal from the AC97 codec.
3071 		 */
3072 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
3073 			goto ok1;
3074 		msleep(10);
3075 	}
3076 
3077 
3078 	snd_printk("create - never read codec ready from AC'97\n");
3079 	snd_printk("it is not probably bug, try to use CS4236 driver\n");
3080 	return -EIO;
3081  ok1:
3082 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3083 	{
3084 		int count;
3085 		for (count = 0; count < 150; count++) {
3086 			/* First, we want to wait for a short time. */
3087 			udelay(25);
3088 
3089 			if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
3090 				break;
3091 		}
3092 
3093 		/*
3094 		 *  Make sure CODEC is READY.
3095 		 */
3096 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
3097 			snd_printdd("cs46xx: never read card ready from secondary AC'97\n");
3098 	}
3099 #endif
3100 
3101 	/*
3102 	 *  Assert the vaid frame signal so that we can start sending commands
3103 	 *  to the AC97 codec.
3104 	 */
3105 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3106 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3107 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3108 #endif
3109 
3110 
3111 	/*
3112 	 *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
3113 	 *  the codec is pumping ADC data across the AC-link.
3114 	 */
3115 	timeout = 150;
3116 	while (timeout-- > 0) {
3117 		/*
3118 		 *  Read the input slot valid register and see if input slots 3 and
3119 		 *  4 are valid yet.
3120 		 */
3121 		if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
3122 			goto ok2;
3123 		msleep(10);
3124 	}
3125 
3126 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3127 	snd_printk("create - never read ISV3 & ISV4 from AC'97\n");
3128 	return -EIO;
3129 #else
3130 	/* This may happen on a cold boot with a Terratec SiXPack 5.1.
3131 	   Reloading the driver may help, if there's other soundcards
3132 	   with the same problem I would like to know. (Benny) */
3133 
3134 	snd_printk("ERROR: snd-cs46xx: never read ISV3 & ISV4 from AC'97\n");
3135 	snd_printk("       Try reloading the ALSA driver, if you find something\n");
3136         snd_printk("       broken or not working on your soundcard upon\n");
3137 	snd_printk("       this message please report to alsa-devel@lists.sourceforge.net\n");
3138 
3139 	return -EIO;
3140 #endif
3141  ok2:
3142 
3143 	/*
3144 	 *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
3145 	 *  commense the transfer of digital audio data to the AC97 codec.
3146 	 */
3147 
3148 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
3149 
3150 
3151 	/*
3152 	 *  Power down the DAC and ADC.  We will power them up (if) when we need
3153 	 *  them.
3154 	 */
3155 	/* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
3156 
3157 	/*
3158 	 *  Turn off the Processor by turning off the software clock enable flag in
3159 	 *  the clock control register.
3160 	 */
3161 	/* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
3162 	/* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
3163 
3164 	return 0;
3165 }
3166 
3167 /*
3168  *  start and load DSP
3169  */
3170 int __devinit snd_cs46xx_start_dsp(cs46xx_t *chip)
3171 {
3172 	unsigned int tmp;
3173 	/*
3174 	 *  Reset the processor.
3175 	 */
3176 	snd_cs46xx_reset(chip);
3177 	/*
3178 	 *  Download the image to the processor.
3179 	 */
3180 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3181 #if 0
3182 	if (cs46xx_dsp_load_module(chip, &cwcemb80_module) < 0) {
3183 		snd_printk(KERN_ERR "image download error\n");
3184 		return -EIO;
3185 	}
3186 #endif
3187 
3188 	if (cs46xx_dsp_load_module(chip, &cwc4630_module) < 0) {
3189 		snd_printk(KERN_ERR "image download error [cwc4630]\n");
3190 		return -EIO;
3191 	}
3192 
3193 	if (cs46xx_dsp_load_module(chip, &cwcasync_module) < 0) {
3194 		snd_printk(KERN_ERR "image download error [cwcasync]\n");
3195 		return -EIO;
3196 	}
3197 
3198 	if (cs46xx_dsp_load_module(chip, &cwcsnoop_module) < 0) {
3199 		snd_printk(KERN_ERR "image download error [cwcsnoop]\n");
3200 		return -EIO;
3201 	}
3202 
3203 	if (cs46xx_dsp_load_module(chip, &cwcbinhack_module) < 0) {
3204 		snd_printk(KERN_ERR "image download error [cwcbinhack]\n");
3205 		return -EIO;
3206 	}
3207 
3208 	if (cs46xx_dsp_load_module(chip, &cwcdma_module) < 0) {
3209 		snd_printk(KERN_ERR "image download error [cwcdma]\n");
3210 		return -EIO;
3211 	}
3212 
3213 	if (cs46xx_dsp_scb_and_task_init(chip) < 0)
3214 		return -EIO;
3215 #else
3216 	/* old image */
3217 	if (snd_cs46xx_download_image(chip) < 0) {
3218 		snd_printk("image download error\n");
3219 		return -EIO;
3220 	}
3221 
3222 	/*
3223          *  Stop playback DMA.
3224 	 */
3225 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
3226 	chip->play_ctl = tmp & 0xffff0000;
3227 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
3228 #endif
3229 
3230 	/*
3231          *  Stop capture DMA.
3232 	 */
3233 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3234 	chip->capt.ctl = tmp & 0x0000ffff;
3235 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3236 
3237 	mdelay(5);
3238 
3239 	snd_cs46xx_set_play_sample_rate(chip, 8000);
3240 	snd_cs46xx_set_capture_sample_rate(chip, 8000);
3241 
3242 	snd_cs46xx_proc_start(chip);
3243 
3244 	/*
3245 	 *  Enable interrupts on the part.
3246 	 */
3247 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
3248 
3249 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
3250 	tmp &= ~0x0000f03f;
3251 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt enable */
3252 
3253 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
3254 	tmp &= ~0x0000003f;
3255 	tmp |=  0x00000001;
3256 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt enable */
3257 
3258 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3259 	/* set the attenuation to 0dB */
3260 	snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
3261 	snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
3262 #endif
3263 
3264 	return 0;
3265 }
3266 
3267 
3268 /*
3269  *	AMP control - null AMP
3270  */
3271 
3272 static void amp_none(cs46xx_t *chip, int change)
3273 {
3274 }
3275 
3276 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3277 static int voyetra_setup_eapd_slot(cs46xx_t *chip)
3278 {
3279 
3280 	u32 idx, valid_slots,tmp,powerdown = 0;
3281 	u16 modem_power,pin_config,logic_type;
3282 
3283 	snd_printdd ("cs46xx: cs46xx_setup_eapd_slot()+\n");
3284 
3285 	/*
3286 	 *  See if the devices are powered down.  If so, we must power them up first
3287 	 *  or they will not respond.
3288 	 */
3289 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
3290 
3291 	if (!(tmp & CLKCR1_SWCE)) {
3292 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
3293 		powerdown = 1;
3294 	}
3295 
3296 	/*
3297 	 * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
3298 	 * stuff.
3299 	 */
3300 	if(chip->nr_ac97_codecs != 2) {
3301 		snd_printk (KERN_ERR "cs46xx: cs46xx_setup_eapd_slot() - no secondary codec configured\n");
3302 		return -EINVAL;
3303 	}
3304 
3305 	modem_power = snd_cs46xx_codec_read (chip,
3306 					     AC97_EXTENDED_MSTATUS,
3307 					     CS46XX_SECONDARY_CODEC_INDEX);
3308 	modem_power &=0xFEFF;
3309 
3310 	snd_cs46xx_codec_write(chip,
3311 			       AC97_EXTENDED_MSTATUS, modem_power,
3312 			       CS46XX_SECONDARY_CODEC_INDEX);
3313 
3314 	/*
3315 	 * Set GPIO pin's 7 and 8 so that they are configured for output.
3316 	 */
3317 	pin_config = snd_cs46xx_codec_read (chip,
3318 					    AC97_GPIO_CFG,
3319 					    CS46XX_SECONDARY_CODEC_INDEX);
3320 	pin_config &=0x27F;
3321 
3322 	snd_cs46xx_codec_write(chip,
3323 			       AC97_GPIO_CFG, pin_config,
3324 			       CS46XX_SECONDARY_CODEC_INDEX);
3325 
3326 	/*
3327 	 * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
3328 	 */
3329 
3330 	logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
3331 					   CS46XX_SECONDARY_CODEC_INDEX);
3332 	logic_type &=0x27F;
3333 
3334 	snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
3335 				CS46XX_SECONDARY_CODEC_INDEX);
3336 
3337 	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
3338 	valid_slots |= 0x200;
3339 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
3340 
3341 	if ( cs46xx_wait_for_fifo(chip,1) ) {
3342 	  snd_printdd("FIFO is busy\n");
3343 
3344 	  return -EINVAL;
3345 	}
3346 
3347 	/*
3348 	 * Fill slots 12 with the correct value for the GPIO pins.
3349 	 */
3350 	for(idx = 0x90; idx <= 0x9F; idx++) {
3351 		/*
3352 		 * Initialize the fifo so that bits 7 and 8 are on.
3353 		 *
3354 		 * Remember that the GPIO pins in bonzo are shifted by 4 bits to
3355 		 * the left.  0x1800 corresponds to bits 7 and 8.
3356 		 */
3357 		snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
3358 
3359 		/*
3360 		 * Wait for command to complete
3361 		 */
3362 		if ( cs46xx_wait_for_fifo(chip,200) ) {
3363 			snd_printdd("failed waiting for FIFO at addr (%02X)\n",idx);
3364 
3365 			return -EINVAL;
3366 		}
3367 
3368 		/*
3369 		 * Write the serial port FIFO index.
3370 		 */
3371 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
3372 
3373 		/*
3374 		 * Tell the serial port to load the new value into the FIFO location.
3375 		 */
3376 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
3377 	}
3378 
3379 	/* wait for last command to complete */
3380 	cs46xx_wait_for_fifo(chip,200);
3381 
3382 	/*
3383 	 *  Now, if we powered up the devices, then power them back down again.
3384 	 *  This is kinda ugly, but should never happen.
3385 	 */
3386 	if (powerdown)
3387 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
3388 
3389 	return 0;
3390 }
3391 #endif
3392 
3393 /*
3394  *	Crystal EAPD mode
3395  */
3396 
3397 static void amp_voyetra(cs46xx_t *chip, int change)
3398 {
3399 	/* Manage the EAPD bit on the Crystal 4297
3400 	   and the Analog AD1885 */
3401 
3402 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3403 	int old = chip->amplifier;
3404 #endif
3405 	int oval, val;
3406 
3407 	chip->amplifier += change;
3408 	oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
3409 				     CS46XX_PRIMARY_CODEC_INDEX);
3410 	val = oval;
3411 	if (chip->amplifier) {
3412 		/* Turn the EAPD amp on */
3413 		val |= 0x8000;
3414 	} else {
3415 		/* Turn the EAPD amp off */
3416 		val &= ~0x8000;
3417 	}
3418 	if (val != oval) {
3419 		snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
3420 				       CS46XX_PRIMARY_CODEC_INDEX);
3421 		if (chip->eapd_switch)
3422 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3423 				       &chip->eapd_switch->id);
3424 	}
3425 
3426 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3427 	if (chip->amplifier && !old) {
3428 		voyetra_setup_eapd_slot(chip);
3429 	}
3430 #endif
3431 }
3432 
3433 static void hercules_init(cs46xx_t *chip)
3434 {
3435 	/* default: AMP off, and SPDIF input optical */
3436 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3437 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3438 }
3439 
3440 
3441 /*
3442  *	Game Theatre XP card - EGPIO[2] is used to enable the external amp.
3443  */
3444 static void amp_hercules(cs46xx_t *chip, int change)
3445 {
3446 	int old = chip->amplifier;
3447 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
3448 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
3449 
3450 	chip->amplifier += change;
3451 	if (chip->amplifier && !old) {
3452 		snd_printdd ("Hercules amplifier ON\n");
3453 
3454 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
3455 				   EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
3456 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
3457 				   EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
3458 	} else if (old && !chip->amplifier) {
3459 		snd_printdd ("Hercules amplifier OFF\n");
3460 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
3461 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
3462 	}
3463 }
3464 
3465 static void voyetra_mixer_init (cs46xx_t *chip)
3466 {
3467 	snd_printdd ("initializing Voyetra mixer\n");
3468 
3469 	/* Enable SPDIF out */
3470 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3471 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3472 }
3473 
3474 static void hercules_mixer_init (cs46xx_t *chip)
3475 {
3476 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3477 	unsigned int idx;
3478 	int err;
3479 	snd_card_t *card = chip->card;
3480 #endif
3481 
3482 	/* set EGPIO to default */
3483 	hercules_init(chip);
3484 
3485 	snd_printdd ("initializing Hercules mixer\n");
3486 
3487 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3488 	for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
3489 		snd_kcontrol_t *kctl;
3490 
3491 		kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
3492 		if ((err = snd_ctl_add(card, kctl)) < 0) {
3493 			printk (KERN_ERR "cs46xx: failed to initialize Hercules mixer (%d)\n",err);
3494 			break;
3495 		}
3496 	}
3497 #endif
3498 }
3499 
3500 
3501 #if 0
3502 /*
3503  *	Untested
3504  */
3505 
3506 static void amp_voyetra_4294(cs46xx_t *chip, int change)
3507 {
3508 	chip->amplifier += change;
3509 
3510 	if (chip->amplifier) {
3511 		/* Switch the GPIO pins 7 and 8 to open drain */
3512 		snd_cs46xx_codec_write(chip, 0x4C,
3513 				       snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
3514 		snd_cs46xx_codec_write(chip, 0x4E,
3515 				       snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
3516 		/* Now wake the AMP (this might be backwards) */
3517 		snd_cs46xx_codec_write(chip, 0x54,
3518 				       snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
3519 	} else {
3520 		snd_cs46xx_codec_write(chip, 0x54,
3521 				       snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
3522 	}
3523 }
3524 #endif
3525 
3526 
3527 /*
3528  *	Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
3529  *	whenever we need to beat on the chip.
3530  *
3531  *	The original idea and code for this hack comes from David Kaiser at
3532  *	Linuxcare. Perhaps one day Crystal will document their chips well
3533  *	enough to make them useful.
3534  */
3535 
3536 static void clkrun_hack(cs46xx_t *chip, int change)
3537 {
3538 	u16 control, nval;
3539 
3540 	if (!chip->acpi_port)
3541 		return;
3542 
3543 	chip->amplifier += change;
3544 
3545 	/* Read ACPI port */
3546 	nval = control = inw(chip->acpi_port + 0x10);
3547 
3548 	/* Flip CLKRUN off while running */
3549 	if (! chip->amplifier)
3550 		nval |= 0x2000;
3551 	else
3552 		nval &= ~0x2000;
3553 	if (nval != control)
3554 		outw(nval, chip->acpi_port + 0x10);
3555 }
3556 
3557 
3558 /*
3559  * detect intel piix4
3560  */
3561 static void clkrun_init(cs46xx_t *chip)
3562 {
3563 	struct pci_dev *pdev;
3564 	u8 pp;
3565 
3566 	chip->acpi_port = 0;
3567 
3568 	pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
3569 		PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3570 	if (pdev == NULL)
3571 		return;		/* Not a thinkpad thats for sure */
3572 
3573 	/* Find the control port */
3574 	pci_read_config_byte(pdev, 0x41, &pp);
3575 	chip->acpi_port = pp << 8;
3576 	pci_dev_put(pdev);
3577 }
3578 
3579 
3580 /*
3581  * Card subid table
3582  */
3583 
3584 struct cs_card_type
3585 {
3586 	u16 vendor;
3587 	u16 id;
3588 	char *name;
3589 	void (*init)(cs46xx_t *);
3590 	void (*amp)(cs46xx_t *, int);
3591 	void (*active)(cs46xx_t *, int);
3592 	void (*mixer_init)(cs46xx_t *);
3593 };
3594 
3595 static struct cs_card_type __devinitdata cards[] = {
3596 	{
3597 		.vendor = 0x1489,
3598 		.id = 0x7001,
3599 		.name = "Genius Soundmaker 128 value",
3600 		/* nothing special */
3601 	},
3602 	{
3603 		.vendor = 0x5053,
3604 		.id = 0x3357,
3605 		.name = "Voyetra",
3606 		.amp = amp_voyetra,
3607 		.mixer_init = voyetra_mixer_init,
3608 	},
3609 	{
3610 		.vendor = 0x1071,
3611 		.id = 0x6003,
3612 		.name = "Mitac MI6020/21",
3613 		.amp = amp_voyetra,
3614 	},
3615 	{
3616 		.vendor = 0x14AF,
3617 		.id = 0x0050,
3618 		.name = "Hercules Game Theatre XP",
3619 		.amp = amp_hercules,
3620 		.mixer_init = hercules_mixer_init,
3621 	},
3622 	{
3623 		.vendor = 0x1681,
3624 		.id = 0x0050,
3625 		.name = "Hercules Game Theatre XP",
3626 		.amp = amp_hercules,
3627 		.mixer_init = hercules_mixer_init,
3628 	},
3629 	{
3630 		.vendor = 0x1681,
3631 		.id = 0x0051,
3632 		.name = "Hercules Game Theatre XP",
3633 		.amp = amp_hercules,
3634 		.mixer_init = hercules_mixer_init,
3635 
3636 	},
3637 	{
3638 		.vendor = 0x1681,
3639 		.id = 0x0052,
3640 		.name = "Hercules Game Theatre XP",
3641 		.amp = amp_hercules,
3642 		.mixer_init = hercules_mixer_init,
3643 	},
3644 	{
3645 		.vendor = 0x1681,
3646 		.id = 0x0053,
3647 		.name = "Hercules Game Theatre XP",
3648 		.amp = amp_hercules,
3649 		.mixer_init = hercules_mixer_init,
3650 	},
3651 	{
3652 		.vendor = 0x1681,
3653 		.id = 0x0054,
3654 		.name = "Hercules Game Theatre XP",
3655 		.amp = amp_hercules,
3656 		.mixer_init = hercules_mixer_init,
3657 	},
3658 	/* Teratec */
3659 	{
3660 		.vendor = 0x153b,
3661 		.id = 0x1136,
3662 		.name = "Terratec SiXPack 5.1",
3663 	},
3664 	/* Not sure if the 570 needs the clkrun hack */
3665 	{
3666 		.vendor = PCI_VENDOR_ID_IBM,
3667 		.id = 0x0132,
3668 		.name = "Thinkpad 570",
3669 		.init = clkrun_init,
3670 		.active = clkrun_hack,
3671 	},
3672 	{
3673 		.vendor = PCI_VENDOR_ID_IBM,
3674 		.id = 0x0153,
3675 		.name = "Thinkpad 600X/A20/T20",
3676 		.init = clkrun_init,
3677 		.active = clkrun_hack,
3678 	},
3679 	{
3680 		.vendor = PCI_VENDOR_ID_IBM,
3681 		.id = 0x1010,
3682 		.name = "Thinkpad 600E (unsupported)",
3683 	},
3684 	{} /* terminator */
3685 };
3686 
3687 
3688 /*
3689  * APM support
3690  */
3691 #ifdef CONFIG_PM
3692 static int snd_cs46xx_suspend(snd_card_t *card, pm_message_t state)
3693 {
3694 	cs46xx_t *chip = card->pm_private_data;
3695 	int amp_saved;
3696 
3697 	snd_pcm_suspend_all(chip->pcm);
3698 	// chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
3699 	// chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
3700 
3701 	snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3702 	if (chip->ac97[CS46XX_SECONDARY_CODEC_INDEX])
3703 		snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3704 
3705 	amp_saved = chip->amplifier;
3706 	/* turn off amp */
3707 	chip->amplifier_ctrl(chip, -chip->amplifier);
3708 	snd_cs46xx_hw_stop(chip);
3709 	/* disable CLKRUN */
3710 	chip->active_ctrl(chip, -chip->amplifier);
3711 	chip->amplifier = amp_saved; /* restore the status */
3712 	pci_disable_device(chip->pci);
3713 	return 0;
3714 }
3715 
3716 static int snd_cs46xx_resume(snd_card_t *card)
3717 {
3718 	cs46xx_t *chip = card->pm_private_data;
3719 	int amp_saved;
3720 
3721 	pci_enable_device(chip->pci);
3722 	pci_set_master(chip->pci);
3723 	amp_saved = chip->amplifier;
3724 	chip->amplifier = 0;
3725 	chip->active_ctrl(chip, 1); /* force to on */
3726 
3727 	snd_cs46xx_chip_init(chip);
3728 
3729 #if 0
3730 	snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE,
3731 			       chip->ac97_general_purpose);
3732 	snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL,
3733 			       chip->ac97_powerdown);
3734 	mdelay(10);
3735 	snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
3736 			       chip->ac97_powerdown);
3737 	mdelay(5);
3738 #endif
3739 
3740 	snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3741 	if (chip->ac97[CS46XX_SECONDARY_CODEC_INDEX])
3742 		snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3743 
3744 	if (amp_saved)
3745 		chip->amplifier_ctrl(chip, 1); /* turn amp on */
3746 	else
3747 		chip->active_ctrl(chip, -1); /* disable CLKRUN */
3748 	chip->amplifier = amp_saved;
3749 	return 0;
3750 }
3751 #endif /* CONFIG_PM */
3752 
3753 
3754 /*
3755  */
3756 
3757 int __devinit snd_cs46xx_create(snd_card_t * card,
3758 		      struct pci_dev * pci,
3759 		      int external_amp, int thinkpad,
3760 		      cs46xx_t ** rchip)
3761 {
3762 	cs46xx_t *chip;
3763 	int err, idx;
3764 	snd_cs46xx_region_t *region;
3765 	struct cs_card_type *cp;
3766 	u16 ss_card, ss_vendor;
3767 	static snd_device_ops_t ops = {
3768 		.dev_free =	snd_cs46xx_dev_free,
3769 	};
3770 
3771 	*rchip = NULL;
3772 
3773 	/* enable PCI device */
3774 	if ((err = pci_enable_device(pci)) < 0)
3775 		return err;
3776 
3777 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3778 	if (chip == NULL) {
3779 		pci_disable_device(pci);
3780 		return -ENOMEM;
3781 	}
3782 	spin_lock_init(&chip->reg_lock);
3783 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3784 	init_MUTEX(&chip->spos_mutex);
3785 #endif
3786 	chip->card = card;
3787 	chip->pci = pci;
3788 	chip->irq = -1;
3789 	chip->ba0_addr = pci_resource_start(pci, 0);
3790 	chip->ba1_addr = pci_resource_start(pci, 1);
3791 	if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
3792 	    chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
3793 	    	snd_printk("wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n", chip->ba0_addr, chip->ba1_addr);
3794 	    	snd_cs46xx_free(chip);
3795 	    	return -ENOMEM;
3796 	}
3797 
3798 	region = &chip->region.name.ba0;
3799 	strcpy(region->name, "CS46xx_BA0");
3800 	region->base = chip->ba0_addr;
3801 	region->size = CS46XX_BA0_SIZE;
3802 
3803 	region = &chip->region.name.data0;
3804 	strcpy(region->name, "CS46xx_BA1_data0");
3805 	region->base = chip->ba1_addr + BA1_SP_DMEM0;
3806 	region->size = CS46XX_BA1_DATA0_SIZE;
3807 
3808 	region = &chip->region.name.data1;
3809 	strcpy(region->name, "CS46xx_BA1_data1");
3810 	region->base = chip->ba1_addr + BA1_SP_DMEM1;
3811 	region->size = CS46XX_BA1_DATA1_SIZE;
3812 
3813 	region = &chip->region.name.pmem;
3814 	strcpy(region->name, "CS46xx_BA1_pmem");
3815 	region->base = chip->ba1_addr + BA1_SP_PMEM;
3816 	region->size = CS46XX_BA1_PRG_SIZE;
3817 
3818 	region = &chip->region.name.reg;
3819 	strcpy(region->name, "CS46xx_BA1_reg");
3820 	region->base = chip->ba1_addr + BA1_SP_REG;
3821 	region->size = CS46XX_BA1_REG_SIZE;
3822 
3823 	/* set up amp and clkrun hack */
3824 	pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
3825 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
3826 
3827 	for (cp = &cards[0]; cp->name; cp++) {
3828 		if (cp->vendor == ss_vendor && cp->id == ss_card) {
3829 			snd_printdd ("hack for %s enabled\n", cp->name);
3830 
3831 			chip->amplifier_ctrl = cp->amp;
3832 			chip->active_ctrl = cp->active;
3833 			chip->mixer_init = cp->mixer_init;
3834 
3835 			if (cp->init)
3836 				cp->init(chip);
3837 			break;
3838 		}
3839 	}
3840 
3841 	if (external_amp) {
3842 		snd_printk("Crystal EAPD support forced on.\n");
3843 		chip->amplifier_ctrl = amp_voyetra;
3844 	}
3845 
3846 	if (thinkpad) {
3847 		snd_printk("Activating CLKRUN hack for Thinkpad.\n");
3848 		chip->active_ctrl = clkrun_hack;
3849 		clkrun_init(chip);
3850 	}
3851 
3852 	if (chip->amplifier_ctrl == NULL)
3853 		chip->amplifier_ctrl = amp_none;
3854 	if (chip->active_ctrl == NULL)
3855 		chip->active_ctrl = amp_none;
3856 
3857 	chip->active_ctrl(chip, 1); /* enable CLKRUN */
3858 
3859 	pci_set_master(pci);
3860 
3861 	for (idx = 0; idx < 5; idx++) {
3862 		region = &chip->region.idx[idx];
3863 		if ((region->resource = request_mem_region(region->base, region->size, region->name)) == NULL) {
3864 			snd_printk("unable to request memory region 0x%lx-0x%lx\n", region->base, region->base + region->size - 1);
3865 			snd_cs46xx_free(chip);
3866 			return -EBUSY;
3867 		}
3868 		region->remap_addr = ioremap_nocache(region->base, region->size);
3869 		if (region->remap_addr == NULL) {
3870 			snd_printk("%s ioremap problem\n", region->name);
3871 			snd_cs46xx_free(chip);
3872 			return -ENOMEM;
3873 		}
3874 	}
3875 
3876 	if (request_irq(pci->irq, snd_cs46xx_interrupt, SA_INTERRUPT|SA_SHIRQ, "CS46XX", (void *) chip)) {
3877 		snd_printk("unable to grab IRQ %d\n", pci->irq);
3878 		snd_cs46xx_free(chip);
3879 		return -EBUSY;
3880 	}
3881 	chip->irq = pci->irq;
3882 
3883 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3884 	chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
3885 	if (chip->dsp_spos_instance == NULL) {
3886 		snd_cs46xx_free(chip);
3887 		return -ENOMEM;
3888 	}
3889 #endif
3890 
3891 	err = snd_cs46xx_chip_init(chip);
3892 	if (err < 0) {
3893 		snd_cs46xx_free(chip);
3894 		return err;
3895 	}
3896 
3897 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3898 		snd_cs46xx_free(chip);
3899 		return err;
3900 	}
3901 
3902 	snd_cs46xx_proc_init(card, chip);
3903 
3904 	snd_card_set_pm_callback(card, snd_cs46xx_suspend, snd_cs46xx_resume, chip);
3905 
3906 	chip->active_ctrl(chip, -1); /* disable CLKRUN */
3907 
3908 	snd_card_set_dev(card, &pci->dev);
3909 
3910 	*rchip = chip;
3911 	return 0;
3912 }
3913