xref: /linux/sound/pci/cs46xx/cs46xx_lib.c (revision a1c613ae4c322ddd58d5a8539dbfba2a0380a8c0)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4  *                   Abramo Bagnara <abramo@alsa-project.org>
5  *                   Cirrus Logic, Inc.
6  *  Routines for control of Cirrus Logic CS461x chips
7  *
8  *  KNOWN BUGS:
9  *    - Sometimes the SPDIF input DSP tasks get's unsynchronized
10  *      and the SPDIF get somewhat "distorcionated", or/and left right channel
11  *      are swapped. To get around this problem when it happens, mute and unmute
12  *      the SPDIF input mixer control.
13  *    - On the Hercules Game Theater XP the amplifier are sometimes turned
14  *      off on inadecuate moments which causes distorcions on sound.
15  *
16  *  TODO:
17  *    - Secondary CODEC on some soundcards
18  *    - SPDIF input support for other sample rates then 48khz
19  *    - Posibility to mix the SPDIF output with analog sources.
20  *    - PCM channels for Center and LFE on secondary codec
21  *
22  *  NOTE: with CONFIG_SND_CS46XX_NEW_DSP unset uses old DSP image (which
23  *        is default configuration), no SPDIF, no secondary codec, no
24  *        multi channel PCM.  But known to work.
25  *
26  *  FINALLY: A credit to the developers Tom and Jordan
27  *           at Cirrus for have helping me out with the DSP, however we
28  *           still don't have sufficient documentation and technical
29  *           references to be able to implement all fancy feutures
30  *           supported by the cs46xx DSP's.
31  *           Benny <benny@hostmobility.com>
32  */
33 
34 #include <linux/delay.h>
35 #include <linux/pci.h>
36 #include <linux/pm.h>
37 #include <linux/init.h>
38 #include <linux/interrupt.h>
39 #include <linux/slab.h>
40 #include <linux/gameport.h>
41 #include <linux/mutex.h>
42 #include <linux/export.h>
43 #include <linux/module.h>
44 #include <linux/firmware.h>
45 #include <linux/vmalloc.h>
46 #include <linux/io.h>
47 
48 #include <sound/core.h>
49 #include <sound/control.h>
50 #include <sound/info.h>
51 #include <sound/pcm.h>
52 #include <sound/pcm_params.h>
53 #include "cs46xx.h"
54 
55 #include "cs46xx_lib.h"
56 #include "dsp_spos.h"
57 
58 static void amp_voyetra(struct snd_cs46xx *chip, int change);
59 
60 #ifdef CONFIG_SND_CS46XX_NEW_DSP
61 static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
62 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
63 static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
64 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
65 static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
66 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
67 #endif
68 
69 static const struct snd_pcm_ops snd_cs46xx_playback_ops;
70 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
71 static const struct snd_pcm_ops snd_cs46xx_capture_ops;
72 static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
73 
snd_cs46xx_codec_read(struct snd_cs46xx * chip,unsigned short reg,int codec_index)74 static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
75 					    unsigned short reg,
76 					    int codec_index)
77 {
78 	int count;
79 	unsigned short result,tmp;
80 	u32 offset = 0;
81 
82 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
83 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
84 		return 0xffff;
85 
86 	chip->active_ctrl(chip, 1);
87 
88 	if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
89 		offset = CS46XX_SECONDARY_CODEC_OFFSET;
90 
91 	/*
92 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
93 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
94 	 *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
95 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
96 	 *  5. if DCV not cleared, break and return error
97 	 *  6. Read ACSTS = Status Register = 464h, check VSTS bit
98 	 */
99 
100 	snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
101 
102 	tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
103 	if ((tmp & ACCTL_VFRM) == 0) {
104 		dev_warn(chip->card->dev, "ACCTL_VFRM not set 0x%x\n", tmp);
105 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
106 		msleep(50);
107 		tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
108 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
109 
110 	}
111 
112 	/*
113 	 *  Setup the AC97 control registers on the CS461x to send the
114 	 *  appropriate command to the AC97 to perform the read.
115 	 *  ACCAD = Command Address Register = 46Ch
116 	 *  ACCDA = Command Data Register = 470h
117 	 *  ACCTL = Control Register = 460h
118 	 *  set DCV - will clear when process completed
119 	 *  set CRW - Read command
120 	 *  set VFRM - valid frame enabled
121 	 *  set ESYN - ASYNC generation enabled
122 	 *  set RSTN - ARST# inactive, AC97 codec not reset
123 	 */
124 
125 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
126 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
127 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
128 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW |
129 				   ACCTL_VFRM | ACCTL_ESYN |
130 				   ACCTL_RSTN);
131 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
132 				   ACCTL_VFRM | ACCTL_ESYN |
133 				   ACCTL_RSTN);
134 	} else {
135 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
136 				   ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
137 				   ACCTL_RSTN);
138 	}
139 
140 	/*
141 	 *  Wait for the read to occur.
142 	 */
143 	for (count = 0; count < 1000; count++) {
144 		/*
145 		 *  First, we want to wait for a short time.
146 	 	 */
147 		udelay(10);
148 		/*
149 		 *  Now, check to see if the read has completed.
150 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
151 		 */
152 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
153 			goto ok1;
154 	}
155 
156 	dev_err(chip->card->dev,
157 		"AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
158 	result = 0xffff;
159 	goto end;
160 
161  ok1:
162 	/*
163 	 *  Wait for the valid status bit to go active.
164 	 */
165 	for (count = 0; count < 100; count++) {
166 		/*
167 		 *  Read the AC97 status register.
168 		 *  ACSTS = Status Register = 464h
169 		 *  VSTS - Valid Status
170 		 */
171 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
172 			goto ok2;
173 		udelay(10);
174 	}
175 
176 	dev_err(chip->card->dev,
177 		"AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n",
178 		codec_index, reg);
179 	result = 0xffff;
180 	goto end;
181 
182  ok2:
183 	/*
184 	 *  Read the data returned from the AC97 register.
185 	 *  ACSDA = Status Data Register = 474h
186 	 */
187 #if 0
188 	dev_dbg(chip->card->dev,
189 		"e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
190 			snd_cs46xx_peekBA0(chip, BA0_ACSDA),
191 			snd_cs46xx_peekBA0(chip, BA0_ACCAD));
192 #endif
193 
194 	//snd_cs46xx_peekBA0(chip, BA0_ACCAD);
195 	result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
196  end:
197 	chip->active_ctrl(chip, -1);
198 	return result;
199 }
200 
snd_cs46xx_ac97_read(struct snd_ac97 * ac97,unsigned short reg)201 static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
202 					    unsigned short reg)
203 {
204 	struct snd_cs46xx *chip = ac97->private_data;
205 	unsigned short val;
206 	int codec_index = ac97->num;
207 
208 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
209 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
210 		return 0xffff;
211 
212 	val = snd_cs46xx_codec_read(chip, reg, codec_index);
213 
214 	return val;
215 }
216 
217 
snd_cs46xx_codec_write(struct snd_cs46xx * chip,unsigned short reg,unsigned short val,int codec_index)218 static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
219 				   unsigned short reg,
220 				   unsigned short val,
221 				   int codec_index)
222 {
223 	int count;
224 
225 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
226 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
227 		return;
228 
229 	chip->active_ctrl(chip, 1);
230 
231 	/*
232 	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
233 	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
234 	 *  3. Write ACCTL = Control Register = 460h for initiating the write
235 	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
236 	 *  5. if DCV not cleared, break and return error
237 	 */
238 
239 	/*
240 	 *  Setup the AC97 control registers on the CS461x to send the
241 	 *  appropriate command to the AC97 to perform the read.
242 	 *  ACCAD = Command Address Register = 46Ch
243 	 *  ACCDA = Command Data Register = 470h
244 	 *  ACCTL = Control Register = 460h
245 	 *  set DCV - will clear when process completed
246 	 *  reset CRW - Write command
247 	 *  set VFRM - valid frame enabled
248 	 *  set ESYN - ASYNC generation enabled
249 	 *  set RSTN - ARST# inactive, AC97 codec not reset
250          */
251 	snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
252 	snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
253 	snd_cs46xx_peekBA0(chip, BA0_ACCTL);
254 
255 	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
256 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
257 				   ACCTL_ESYN | ACCTL_RSTN);
258 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
259 				   ACCTL_ESYN | ACCTL_RSTN);
260 	} else {
261 		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
262 				   ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
263 	}
264 
265 	for (count = 0; count < 4000; count++) {
266 		/*
267 		 *  First, we want to wait for a short time.
268 		 */
269 		udelay(10);
270 		/*
271 		 *  Now, check to see if the write has completed.
272 		 *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
273 		 */
274 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
275 			goto end;
276 		}
277 	}
278 	dev_err(chip->card->dev,
279 		"AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n",
280 		codec_index, reg, val);
281  end:
282 	chip->active_ctrl(chip, -1);
283 }
284 
snd_cs46xx_ac97_write(struct snd_ac97 * ac97,unsigned short reg,unsigned short val)285 static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
286 				   unsigned short reg,
287 				   unsigned short val)
288 {
289 	struct snd_cs46xx *chip = ac97->private_data;
290 	int codec_index = ac97->num;
291 
292 	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
293 		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
294 		return;
295 
296 	snd_cs46xx_codec_write(chip, reg, val, codec_index);
297 }
298 
299 
300 /*
301  *  Chip initialization
302  */
303 
snd_cs46xx_download(struct snd_cs46xx * chip,u32 * src,unsigned long offset,unsigned long len)304 int snd_cs46xx_download(struct snd_cs46xx *chip,
305 			u32 *src,
306                         unsigned long offset,
307                         unsigned long len)
308 {
309 	void __iomem *dst;
310 	unsigned int bank = offset >> 16;
311 	offset = offset & 0xffff;
312 
313 	if (snd_BUG_ON((offset & 3) || (len & 3)))
314 		return -EINVAL;
315 	dst = chip->region.idx[bank+1].remap_addr + offset;
316 	len /= sizeof(u32);
317 
318 	/* writel already converts 32-bit value to right endianess */
319 	while (len-- > 0) {
320 		writel(*src++, dst);
321 		dst += sizeof(u32);
322 	}
323 	return 0;
324 }
325 
memcpy_le32(void * dst,const void * src,unsigned int len)326 static inline void memcpy_le32(void *dst, const void *src, unsigned int len)
327 {
328 #ifdef __LITTLE_ENDIAN
329 	memcpy(dst, src, len);
330 #else
331 	u32 *_dst = dst;
332 	const __le32 *_src = src;
333 	len /= 4;
334 	while (len-- > 0)
335 		*_dst++ = le32_to_cpu(*_src++);
336 #endif
337 }
338 
339 #ifdef CONFIG_SND_CS46XX_NEW_DSP
340 
341 static const char *module_names[CS46XX_DSP_MODULES] = {
342 	"cwc4630", "cwcasync", "cwcsnoop", "cwcbinhack", "cwcdma"
343 };
344 
345 MODULE_FIRMWARE("cs46xx/cwc4630");
346 MODULE_FIRMWARE("cs46xx/cwcasync");
347 MODULE_FIRMWARE("cs46xx/cwcsnoop");
348 MODULE_FIRMWARE("cs46xx/cwcbinhack");
349 MODULE_FIRMWARE("cs46xx/cwcdma");
350 
free_module_desc(struct dsp_module_desc * module)351 static void free_module_desc(struct dsp_module_desc *module)
352 {
353 	if (!module)
354 		return;
355 	kfree(module->module_name);
356 	kfree(module->symbol_table.symbols);
357 	if (module->segments) {
358 		int i;
359 		for (i = 0; i < module->nsegments; i++)
360 			kfree(module->segments[i].data);
361 		kfree(module->segments);
362 	}
363 	kfree(module);
364 }
365 
366 /* firmware binary format:
367  * le32 nsymbols;
368  * struct {
369  *	le32 address;
370  *	char symbol_name[DSP_MAX_SYMBOL_NAME];
371  *	le32 symbol_type;
372  * } symbols[nsymbols];
373  * le32 nsegments;
374  * struct {
375  *	le32 segment_type;
376  *	le32 offset;
377  *	le32 size;
378  *	le32 data[size];
379  * } segments[nsegments];
380  */
381 
load_firmware(struct snd_cs46xx * chip,struct dsp_module_desc ** module_ret,const char * fw_name)382 static int load_firmware(struct snd_cs46xx *chip,
383 			 struct dsp_module_desc **module_ret,
384 			 const char *fw_name)
385 {
386 	int i, err;
387 	unsigned int nums, fwlen, fwsize;
388 	const __le32 *fwdat;
389 	struct dsp_module_desc *module = NULL;
390 	const struct firmware *fw;
391 	char fw_path[32];
392 
393 	sprintf(fw_path, "cs46xx/%s", fw_name);
394 	err = request_firmware(&fw, fw_path, &chip->pci->dev);
395 	if (err < 0)
396 		return err;
397 	fwsize = fw->size / 4;
398 	if (fwsize < 2) {
399 		err = -EINVAL;
400 		goto error;
401 	}
402 
403 	err = -ENOMEM;
404 	module = kzalloc(sizeof(*module), GFP_KERNEL);
405 	if (!module)
406 		goto error;
407 	module->module_name = kstrdup(fw_name, GFP_KERNEL);
408 	if (!module->module_name)
409 		goto error;
410 
411 	fwlen = 0;
412 	fwdat = (const __le32 *)fw->data;
413 	nums = module->symbol_table.nsymbols = le32_to_cpu(fwdat[fwlen++]);
414 	if (nums >= 40)
415 		goto error_inval;
416 	module->symbol_table.symbols =
417 		kcalloc(nums, sizeof(struct dsp_symbol_entry), GFP_KERNEL);
418 	if (!module->symbol_table.symbols)
419 		goto error;
420 	for (i = 0; i < nums; i++) {
421 		struct dsp_symbol_entry *entry =
422 			&module->symbol_table.symbols[i];
423 		if (fwlen + 2 + DSP_MAX_SYMBOL_NAME / 4 > fwsize)
424 			goto error_inval;
425 		entry->address = le32_to_cpu(fwdat[fwlen++]);
426 		memcpy(entry->symbol_name, &fwdat[fwlen], DSP_MAX_SYMBOL_NAME - 1);
427 		fwlen += DSP_MAX_SYMBOL_NAME / 4;
428 		entry->symbol_type = le32_to_cpu(fwdat[fwlen++]);
429 	}
430 
431 	if (fwlen >= fwsize)
432 		goto error_inval;
433 	nums = module->nsegments = le32_to_cpu(fwdat[fwlen++]);
434 	if (nums > 10)
435 		goto error_inval;
436 	module->segments =
437 		kcalloc(nums, sizeof(struct dsp_segment_desc), GFP_KERNEL);
438 	if (!module->segments)
439 		goto error;
440 	for (i = 0; i < nums; i++) {
441 		struct dsp_segment_desc *entry = &module->segments[i];
442 		if (fwlen + 3 > fwsize)
443 			goto error_inval;
444 		entry->segment_type = le32_to_cpu(fwdat[fwlen++]);
445 		entry->offset = le32_to_cpu(fwdat[fwlen++]);
446 		entry->size = le32_to_cpu(fwdat[fwlen++]);
447 		if (fwlen + entry->size > fwsize)
448 			goto error_inval;
449 		entry->data = kmalloc_array(entry->size, 4, GFP_KERNEL);
450 		if (!entry->data)
451 			goto error;
452 		memcpy_le32(entry->data, &fwdat[fwlen], entry->size * 4);
453 		fwlen += entry->size;
454 	}
455 
456 	*module_ret = module;
457 	release_firmware(fw);
458 	return 0;
459 
460  error_inval:
461 	err = -EINVAL;
462  error:
463 	free_module_desc(module);
464 	release_firmware(fw);
465 	return err;
466 }
467 
snd_cs46xx_clear_BA1(struct snd_cs46xx * chip,unsigned long offset,unsigned long len)468 int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
469                          unsigned long offset,
470                          unsigned long len)
471 {
472 	void __iomem *dst;
473 	unsigned int bank = offset >> 16;
474 	offset = offset & 0xffff;
475 
476 	if (snd_BUG_ON((offset & 3) || (len & 3)))
477 		return -EINVAL;
478 	dst = chip->region.idx[bank+1].remap_addr + offset;
479 	len /= sizeof(u32);
480 
481 	/* writel already converts 32-bit value to right endianess */
482 	while (len-- > 0) {
483 		writel(0, dst);
484 		dst += sizeof(u32);
485 	}
486 	return 0;
487 }
488 
489 #else /* old DSP image */
490 
491 struct ba1_struct {
492 	struct {
493 		u32 offset;
494 		u32 size;
495 	} memory[BA1_MEMORY_COUNT];
496 	u32 map[BA1_DWORD_SIZE];
497 };
498 
499 MODULE_FIRMWARE("cs46xx/ba1");
500 
load_firmware(struct snd_cs46xx * chip)501 static int load_firmware(struct snd_cs46xx *chip)
502 {
503 	const struct firmware *fw;
504 	int i, size, err;
505 
506 	err = request_firmware(&fw, "cs46xx/ba1", &chip->pci->dev);
507 	if (err < 0)
508 		return err;
509 	if (fw->size != sizeof(*chip->ba1)) {
510 		err = -EINVAL;
511 		goto error;
512 	}
513 
514 	chip->ba1 = vmalloc(sizeof(*chip->ba1));
515 	if (!chip->ba1) {
516 		err = -ENOMEM;
517 		goto error;
518 	}
519 
520 	memcpy_le32(chip->ba1, fw->data, sizeof(*chip->ba1));
521 
522 	/* sanity check */
523 	size = 0;
524 	for (i = 0; i < BA1_MEMORY_COUNT; i++)
525 		size += chip->ba1->memory[i].size;
526 	if (size > BA1_DWORD_SIZE * 4)
527 		err = -EINVAL;
528 
529  error:
530 	release_firmware(fw);
531 	return err;
532 }
533 
snd_cs46xx_download_image(struct snd_cs46xx * chip)534 static __maybe_unused int snd_cs46xx_download_image(struct snd_cs46xx *chip)
535 {
536 	int idx, err;
537 	unsigned int offset = 0;
538 	struct ba1_struct *ba1 = chip->ba1;
539 
540 	for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
541 		err = snd_cs46xx_download(chip,
542 					  &ba1->map[offset],
543 					  ba1->memory[idx].offset,
544 					  ba1->memory[idx].size);
545 		if (err < 0)
546 			return err;
547 		offset += ba1->memory[idx].size >> 2;
548 	}
549 	return 0;
550 }
551 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
552 
553 /*
554  *  Chip reset
555  */
556 
snd_cs46xx_reset(struct snd_cs46xx * chip)557 static void snd_cs46xx_reset(struct snd_cs46xx *chip)
558 {
559 	int idx;
560 
561 	/*
562 	 *  Write the reset bit of the SP control register.
563 	 */
564 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
565 
566 	/*
567 	 *  Write the control register.
568 	 */
569 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
570 
571 	/*
572 	 *  Clear the trap registers.
573 	 */
574 	for (idx = 0; idx < 8; idx++) {
575 		snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
576 		snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
577 	}
578 	snd_cs46xx_poke(chip, BA1_DREG, 0);
579 
580 	/*
581 	 *  Set the frame timer to reflect the number of cycles per frame.
582 	 */
583 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
584 }
585 
cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout)586 static int cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout)
587 {
588 	u32 i, status = 0;
589 	/*
590 	 * Make sure the previous FIFO write operation has completed.
591 	 */
592 	for(i = 0; i < 50; i++){
593 		status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
594 
595 		if( !(status & SERBST_WBSY) )
596 			break;
597 
598 		mdelay(retry_timeout);
599 	}
600 
601 	if(status & SERBST_WBSY) {
602 		dev_err(chip->card->dev,
603 			"failure waiting for FIFO command to complete\n");
604 		return -EINVAL;
605 	}
606 
607 	return 0;
608 }
609 
snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx * chip)610 static void snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx *chip)
611 {
612 	int idx, powerdown = 0;
613 	unsigned int tmp;
614 
615 	/*
616 	 *  See if the devices are powered down.  If so, we must power them up first
617 	 *  or they will not respond.
618 	 */
619 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
620 	if (!(tmp & CLKCR1_SWCE)) {
621 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
622 		powerdown = 1;
623 	}
624 
625 	/*
626 	 *  We want to clear out the serial port FIFOs so we don't end up playing
627 	 *  whatever random garbage happens to be in them.  We fill the sample FIFOS
628 	 *  with zero (silence).
629 	 */
630 	snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
631 
632 	/*
633 	 *  Fill all 256 sample FIFO locations.
634 	 */
635 	for (idx = 0; idx < 0xFF; idx++) {
636 		/*
637 		 *  Make sure the previous FIFO write operation has completed.
638 		 */
639 		if (cs46xx_wait_for_fifo(chip,1)) {
640 			dev_dbg(chip->card->dev,
641 				"failed waiting for FIFO at addr (%02X)\n",
642 				idx);
643 
644 			if (powerdown)
645 				snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
646 
647 			break;
648 		}
649 		/*
650 		 *  Write the serial port FIFO index.
651 		 */
652 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
653 		/*
654 		 *  Tell the serial port to load the new value into the FIFO location.
655 		 */
656 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
657 	}
658 	/*
659 	 *  Now, if we powered up the devices, then power them back down again.
660 	 *  This is kinda ugly, but should never happen.
661 	 */
662 	if (powerdown)
663 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
664 }
665 
snd_cs46xx_proc_start(struct snd_cs46xx * chip)666 static void snd_cs46xx_proc_start(struct snd_cs46xx *chip)
667 {
668 	int cnt;
669 
670 	/*
671 	 *  Set the frame timer to reflect the number of cycles per frame.
672 	 */
673 	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
674 	/*
675 	 *  Turn on the run, run at frame, and DMA enable bits in the local copy of
676 	 *  the SP control register.
677 	 */
678 	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
679 	/*
680 	 *  Wait until the run at frame bit resets itself in the SP control
681 	 *  register.
682 	 */
683 	for (cnt = 0; cnt < 25; cnt++) {
684 		udelay(50);
685 		if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
686 			break;
687 	}
688 
689 	if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
690 		dev_err(chip->card->dev, "SPCR_RUNFR never reset\n");
691 }
692 
snd_cs46xx_proc_stop(struct snd_cs46xx * chip)693 static void snd_cs46xx_proc_stop(struct snd_cs46xx *chip)
694 {
695 	/*
696 	 *  Turn off the run, run at frame, and DMA enable bits in the local copy of
697 	 *  the SP control register.
698 	 */
699 	snd_cs46xx_poke(chip, BA1_SPCR, 0);
700 }
701 
702 /*
703  *  Sample rate routines
704  */
705 
706 #define GOF_PER_SEC 200
707 
snd_cs46xx_set_play_sample_rate(struct snd_cs46xx * chip,unsigned int rate)708 static void snd_cs46xx_set_play_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
709 {
710 	unsigned long flags;
711 	unsigned int tmp1, tmp2;
712 	unsigned int phiIncr;
713 	unsigned int correctionPerGOF, correctionPerSec;
714 
715 	/*
716 	 *  Compute the values used to drive the actual sample rate conversion.
717 	 *  The following formulas are being computed, using inline assembly
718 	 *  since we need to use 64 bit arithmetic to compute the values:
719 	 *
720 	 *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
721 	 *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
722          *                                   GOF_PER_SEC)
723          *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
724          *                       GOF_PER_SEC * correctionPerGOF
725 	 *
726 	 *  i.e.
727 	 *
728 	 *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
729 	 *  correctionPerGOF:correctionPerSec =
730 	 *      dividend:remainder(ulOther / GOF_PER_SEC)
731 	 */
732 	tmp1 = rate << 16;
733 	phiIncr = tmp1 / 48000;
734 	tmp1 -= phiIncr * 48000;
735 	tmp1 <<= 10;
736 	phiIncr <<= 10;
737 	tmp2 = tmp1 / 48000;
738 	phiIncr += tmp2;
739 	tmp1 -= tmp2 * 48000;
740 	correctionPerGOF = tmp1 / GOF_PER_SEC;
741 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
742 	correctionPerSec = tmp1;
743 
744 	/*
745 	 *  Fill in the SampleRateConverter control block.
746 	 */
747 	spin_lock_irqsave(&chip->reg_lock, flags);
748 	snd_cs46xx_poke(chip, BA1_PSRC,
749 	  ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
750 	snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
751 	spin_unlock_irqrestore(&chip->reg_lock, flags);
752 }
753 
snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx * chip,unsigned int rate)754 static void snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
755 {
756 	unsigned long flags;
757 	unsigned int phiIncr, coeffIncr, tmp1, tmp2;
758 	unsigned int correctionPerGOF, correctionPerSec, initialDelay;
759 	unsigned int frameGroupLength, cnt;
760 
761 	/*
762 	 *  We can only decimate by up to a factor of 1/9th the hardware rate.
763 	 *  Correct the value if an attempt is made to stray outside that limit.
764 	 */
765 	if ((rate * 9) < 48000)
766 		rate = 48000 / 9;
767 
768 	/*
769 	 *  We can not capture at a rate greater than the Input Rate (48000).
770 	 *  Return an error if an attempt is made to stray outside that limit.
771 	 */
772 	if (rate > 48000)
773 		rate = 48000;
774 
775 	/*
776 	 *  Compute the values used to drive the actual sample rate conversion.
777 	 *  The following formulas are being computed, using inline assembly
778 	 *  since we need to use 64 bit arithmetic to compute the values:
779 	 *
780 	 *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
781 	 *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
782 	 *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
783 	 *                                GOF_PER_SEC)
784 	 *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
785 	 *                          GOF_PER_SEC * correctionPerGOF
786 	 *     initialDelay = ceil((24 * Fs,in) / Fs,out)
787 	 *
788 	 * i.e.
789 	 *
790 	 *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
791 	 *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
792 	 *     correctionPerGOF:correctionPerSec =
793 	 * 	    dividend:remainder(ulOther / GOF_PER_SEC)
794 	 *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
795 	 */
796 
797 	tmp1 = rate << 16;
798 	coeffIncr = tmp1 / 48000;
799 	tmp1 -= coeffIncr * 48000;
800 	tmp1 <<= 7;
801 	coeffIncr <<= 7;
802 	coeffIncr += tmp1 / 48000;
803 	coeffIncr ^= 0xFFFFFFFF;
804 	coeffIncr++;
805 	tmp1 = 48000 << 16;
806 	phiIncr = tmp1 / rate;
807 	tmp1 -= phiIncr * rate;
808 	tmp1 <<= 10;
809 	phiIncr <<= 10;
810 	tmp2 = tmp1 / rate;
811 	phiIncr += tmp2;
812 	tmp1 -= tmp2 * rate;
813 	correctionPerGOF = tmp1 / GOF_PER_SEC;
814 	tmp1 -= correctionPerGOF * GOF_PER_SEC;
815 	correctionPerSec = tmp1;
816 	initialDelay = DIV_ROUND_UP(48000 * 24, rate);
817 
818 	/*
819 	 *  Fill in the VariDecimate control block.
820 	 */
821 	spin_lock_irqsave(&chip->reg_lock, flags);
822 	snd_cs46xx_poke(chip, BA1_CSRC,
823 		((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
824 	snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
825 	snd_cs46xx_poke(chip, BA1_CD,
826 		(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
827 	snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
828 	spin_unlock_irqrestore(&chip->reg_lock, flags);
829 
830 	/*
831 	 *  Figure out the frame group length for the write back task.  Basically,
832 	 *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
833 	 *  the output sample rate.
834 	 */
835 	frameGroupLength = 1;
836 	for (cnt = 2; cnt <= 64; cnt *= 2) {
837 		if (((rate / cnt) * cnt) != rate)
838 			frameGroupLength *= 2;
839 	}
840 	if (((rate / 3) * 3) != rate) {
841 		frameGroupLength *= 3;
842 	}
843 	for (cnt = 5; cnt <= 125; cnt *= 5) {
844 		if (((rate / cnt) * cnt) != rate)
845 			frameGroupLength *= 5;
846         }
847 
848 	/*
849 	 * Fill in the WriteBack control block.
850 	 */
851 	spin_lock_irqsave(&chip->reg_lock, flags);
852 	snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
853 	snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
854 	snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
855 	snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
856 	snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
857 	spin_unlock_irqrestore(&chip->reg_lock, flags);
858 }
859 
860 /*
861  *  PCM part
862  */
863 
snd_cs46xx_pb_trans_copy(struct snd_pcm_substream * substream,struct snd_pcm_indirect * rec,size_t bytes)864 static void snd_cs46xx_pb_trans_copy(struct snd_pcm_substream *substream,
865 				     struct snd_pcm_indirect *rec, size_t bytes)
866 {
867 	struct snd_pcm_runtime *runtime = substream->runtime;
868 	struct snd_cs46xx_pcm * cpcm = runtime->private_data;
869 	memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
870 }
871 
snd_cs46xx_playback_transfer(struct snd_pcm_substream * substream)872 static int snd_cs46xx_playback_transfer(struct snd_pcm_substream *substream)
873 {
874 	struct snd_pcm_runtime *runtime = substream->runtime;
875 	struct snd_cs46xx_pcm * cpcm = runtime->private_data;
876 	return snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec,
877 						  snd_cs46xx_pb_trans_copy);
878 }
879 
snd_cs46xx_cp_trans_copy(struct snd_pcm_substream * substream,struct snd_pcm_indirect * rec,size_t bytes)880 static void snd_cs46xx_cp_trans_copy(struct snd_pcm_substream *substream,
881 				     struct snd_pcm_indirect *rec, size_t bytes)
882 {
883 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
884 	struct snd_pcm_runtime *runtime = substream->runtime;
885 	memcpy(runtime->dma_area + rec->sw_data,
886 	       chip->capt.hw_buf.area + rec->hw_data, bytes);
887 }
888 
snd_cs46xx_capture_transfer(struct snd_pcm_substream * substream)889 static int snd_cs46xx_capture_transfer(struct snd_pcm_substream *substream)
890 {
891 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
892 	return snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec,
893 						 snd_cs46xx_cp_trans_copy);
894 }
895 
snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream * substream)896 static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream *substream)
897 {
898 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
899 	size_t ptr;
900 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
901 
902 	if (snd_BUG_ON(!cpcm->pcm_channel))
903 		return -ENXIO;
904 
905 #ifdef CONFIG_SND_CS46XX_NEW_DSP
906 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
907 #else
908 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
909 #endif
910 	ptr -= cpcm->hw_buf.addr;
911 	return ptr >> cpcm->shift;
912 }
913 
snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream * substream)914 static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream *substream)
915 {
916 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
917 	size_t ptr;
918 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
919 
920 #ifdef CONFIG_SND_CS46XX_NEW_DSP
921 	if (snd_BUG_ON(!cpcm->pcm_channel))
922 		return -ENXIO;
923 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
924 #else
925 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
926 #endif
927 	ptr -= cpcm->hw_buf.addr;
928 	return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
929 }
930 
snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream * substream)931 static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream *substream)
932 {
933 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
934 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
935 	return ptr >> chip->capt.shift;
936 }
937 
snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream * substream)938 static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream *substream)
939 {
940 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
941 	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
942 	return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
943 }
944 
snd_cs46xx_playback_trigger(struct snd_pcm_substream * substream,int cmd)945 static int snd_cs46xx_playback_trigger(struct snd_pcm_substream *substream,
946 				       int cmd)
947 {
948 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
949 	/*struct snd_pcm_runtime *runtime = substream->runtime;*/
950 	int result = 0;
951 
952 #ifdef CONFIG_SND_CS46XX_NEW_DSP
953 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
954 	if (! cpcm->pcm_channel) {
955 		return -ENXIO;
956 	}
957 #endif
958 	switch (cmd) {
959 	case SNDRV_PCM_TRIGGER_START:
960 	case SNDRV_PCM_TRIGGER_RESUME:
961 #ifdef CONFIG_SND_CS46XX_NEW_DSP
962 		/* magic value to unmute PCM stream  playback volume */
963 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
964 				       SCBVolumeCtrl) << 2, 0x80008000);
965 
966 		if (cpcm->pcm_channel->unlinked)
967 			cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
968 
969 		if (substream->runtime->periods != CS46XX_FRAGS)
970 			snd_cs46xx_playback_transfer(substream);
971 #else
972 		spin_lock(&chip->reg_lock);
973 		if (substream->runtime->periods != CS46XX_FRAGS)
974 			snd_cs46xx_playback_transfer(substream);
975 		{ unsigned int tmp;
976 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
977 		tmp &= 0x0000ffff;
978 		snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
979 		}
980 		spin_unlock(&chip->reg_lock);
981 #endif
982 		break;
983 	case SNDRV_PCM_TRIGGER_STOP:
984 	case SNDRV_PCM_TRIGGER_SUSPEND:
985 #ifdef CONFIG_SND_CS46XX_NEW_DSP
986 		/* magic mute channel */
987 		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
988 				       SCBVolumeCtrl) << 2, 0xffffffff);
989 
990 		if (!cpcm->pcm_channel->unlinked)
991 			cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
992 #else
993 		spin_lock(&chip->reg_lock);
994 		{ unsigned int tmp;
995 		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
996 		tmp &= 0x0000ffff;
997 		snd_cs46xx_poke(chip, BA1_PCTL, tmp);
998 		}
999 		spin_unlock(&chip->reg_lock);
1000 #endif
1001 		break;
1002 	default:
1003 		result = -EINVAL;
1004 		break;
1005 	}
1006 
1007 	return result;
1008 }
1009 
snd_cs46xx_capture_trigger(struct snd_pcm_substream * substream,int cmd)1010 static int snd_cs46xx_capture_trigger(struct snd_pcm_substream *substream,
1011 				      int cmd)
1012 {
1013 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1014 	unsigned int tmp;
1015 	int result = 0;
1016 
1017 	spin_lock(&chip->reg_lock);
1018 	switch (cmd) {
1019 	case SNDRV_PCM_TRIGGER_START:
1020 	case SNDRV_PCM_TRIGGER_RESUME:
1021 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
1022 		tmp &= 0xffff0000;
1023 		snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
1024 		break;
1025 	case SNDRV_PCM_TRIGGER_STOP:
1026 	case SNDRV_PCM_TRIGGER_SUSPEND:
1027 		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
1028 		tmp &= 0xffff0000;
1029 		snd_cs46xx_poke(chip, BA1_CCTL, tmp);
1030 		break;
1031 	default:
1032 		result = -EINVAL;
1033 		break;
1034 	}
1035 	spin_unlock(&chip->reg_lock);
1036 
1037 	return result;
1038 }
1039 
1040 #ifdef CONFIG_SND_CS46XX_NEW_DSP
_cs46xx_adjust_sample_rate(struct snd_cs46xx * chip,struct snd_cs46xx_pcm * cpcm,int sample_rate)1041 static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46xx_pcm *cpcm,
1042 				       int sample_rate)
1043 {
1044 
1045 	/* If PCMReaderSCB and SrcTaskSCB not created yet ... */
1046 	if ( cpcm->pcm_channel == NULL) {
1047 		cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate,
1048 								   cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
1049 		if (cpcm->pcm_channel == NULL) {
1050 			dev_err(chip->card->dev,
1051 				"failed to create virtual PCM channel\n");
1052 			return -ENOMEM;
1053 		}
1054 		cpcm->pcm_channel->sample_rate = sample_rate;
1055 	} else
1056 	/* if sample rate is changed */
1057 	if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
1058 		int unlinked = cpcm->pcm_channel->unlinked;
1059 		cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
1060 
1061 		cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel(chip, sample_rate, cpcm,
1062 								  cpcm->hw_buf.addr,
1063 								  cpcm->pcm_channel_id);
1064 		if (!cpcm->pcm_channel) {
1065 			dev_err(chip->card->dev,
1066 				"failed to re-create virtual PCM channel\n");
1067 			return -ENOMEM;
1068 		}
1069 
1070 		if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
1071 		cpcm->pcm_channel->sample_rate = sample_rate;
1072 	}
1073 
1074 	return 0;
1075 }
1076 #endif
1077 
1078 
snd_cs46xx_playback_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)1079 static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
1080 					 struct snd_pcm_hw_params *hw_params)
1081 {
1082 	struct snd_pcm_runtime *runtime = substream->runtime;
1083 	struct snd_cs46xx_pcm *cpcm;
1084 	int err;
1085 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1086 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1087 	int sample_rate = params_rate(hw_params);
1088 	int period_size = params_period_bytes(hw_params);
1089 #endif
1090 	cpcm = runtime->private_data;
1091 
1092 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1093 	if (snd_BUG_ON(!sample_rate))
1094 		return -ENXIO;
1095 
1096 	mutex_lock(&chip->spos_mutex);
1097 
1098 	if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
1099 		mutex_unlock(&chip->spos_mutex);
1100 		return -ENXIO;
1101 	}
1102 
1103 	snd_BUG_ON(!cpcm->pcm_channel);
1104 	if (!cpcm->pcm_channel) {
1105 		mutex_unlock(&chip->spos_mutex);
1106 		return -ENXIO;
1107 	}
1108 
1109 
1110 	if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
1111 		 mutex_unlock(&chip->spos_mutex);
1112 		 return -EINVAL;
1113 	 }
1114 
1115 	dev_dbg(chip->card->dev,
1116 		"period_size (%d), periods (%d) buffer_size(%d)\n",
1117 		     period_size, params_periods(hw_params),
1118 		     params_buffer_bytes(hw_params));
1119 #endif
1120 
1121 	if (params_periods(hw_params) == CS46XX_FRAGS) {
1122 		if (runtime->dma_area != cpcm->hw_buf.area)
1123 			snd_pcm_lib_free_pages(substream);
1124 		snd_pcm_set_runtime_buffer(substream, &cpcm->hw_buf);
1125 
1126 
1127 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1128 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
1129 			substream->ops = &snd_cs46xx_playback_ops;
1130 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
1131 			substream->ops = &snd_cs46xx_playback_rear_ops;
1132 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
1133 			substream->ops = &snd_cs46xx_playback_clfe_ops;
1134 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
1135 			substream->ops = &snd_cs46xx_playback_iec958_ops;
1136 		} else {
1137 			snd_BUG();
1138 		}
1139 #else
1140 		substream->ops = &snd_cs46xx_playback_ops;
1141 #endif
1142 
1143 	} else {
1144 		if (runtime->dma_area == cpcm->hw_buf.area)
1145 			snd_pcm_set_runtime_buffer(substream, NULL);
1146 		err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1147 		if (err < 0) {
1148 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1149 			mutex_unlock(&chip->spos_mutex);
1150 #endif
1151 			return err;
1152 		}
1153 
1154 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1155 		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
1156 			substream->ops = &snd_cs46xx_playback_indirect_ops;
1157 		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
1158 			substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
1159 		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
1160 			substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
1161 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
1162 			substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
1163 		} else {
1164 			snd_BUG();
1165 		}
1166 #else
1167 		substream->ops = &snd_cs46xx_playback_indirect_ops;
1168 #endif
1169 
1170 	}
1171 
1172 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1173 	mutex_unlock(&chip->spos_mutex);
1174 #endif
1175 
1176 	return 0;
1177 }
1178 
snd_cs46xx_playback_hw_free(struct snd_pcm_substream * substream)1179 static int snd_cs46xx_playback_hw_free(struct snd_pcm_substream *substream)
1180 {
1181 	/*struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);*/
1182 	struct snd_pcm_runtime *runtime = substream->runtime;
1183 	struct snd_cs46xx_pcm *cpcm;
1184 
1185 	cpcm = runtime->private_data;
1186 
1187 	/* if play_back open fails, then this function
1188 	   is called and cpcm can actually be NULL here */
1189 	if (!cpcm) return -ENXIO;
1190 
1191 	if (runtime->dma_area != cpcm->hw_buf.area)
1192 		snd_pcm_lib_free_pages(substream);
1193 
1194 	snd_pcm_set_runtime_buffer(substream, NULL);
1195 
1196 	return 0;
1197 }
1198 
snd_cs46xx_playback_prepare(struct snd_pcm_substream * substream)1199 static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
1200 {
1201 	unsigned int tmp;
1202 	unsigned int pfie;
1203 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1204 	struct snd_pcm_runtime *runtime = substream->runtime;
1205 	struct snd_cs46xx_pcm *cpcm;
1206 
1207 	cpcm = runtime->private_data;
1208 
1209 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1210 	if (snd_BUG_ON(!cpcm->pcm_channel))
1211 		return -ENXIO;
1212 
1213 	pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
1214 	pfie &= ~0x0000f03f;
1215 #else
1216 	/* old dsp */
1217 	pfie = snd_cs46xx_peek(chip, BA1_PFIE);
1218  	pfie &= ~0x0000f03f;
1219 #endif
1220 
1221 	cpcm->shift = 2;
1222 	/* if to convert from stereo to mono */
1223 	if (runtime->channels == 1) {
1224 		cpcm->shift--;
1225 		pfie |= 0x00002000;
1226 	}
1227 	/* if to convert from 8 bit to 16 bit */
1228 	if (snd_pcm_format_width(runtime->format) == 8) {
1229 		cpcm->shift--;
1230 		pfie |= 0x00001000;
1231 	}
1232 	/* if to convert to unsigned */
1233 	if (snd_pcm_format_unsigned(runtime->format))
1234 		pfie |= 0x00008000;
1235 
1236 	/* Never convert byte order when sample stream is 8 bit */
1237 	if (snd_pcm_format_width(runtime->format) != 8) {
1238 		/* convert from big endian to little endian */
1239 		if (snd_pcm_format_big_endian(runtime->format))
1240 			pfie |= 0x00004000;
1241 	}
1242 
1243 	memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
1244 	cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1245 	cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
1246 
1247 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1248 
1249 	tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
1250 	tmp &= ~0x000003ff;
1251 	tmp |= (4 << cpcm->shift) - 1;
1252 	/* playback transaction count register */
1253 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
1254 
1255 	/* playback format && interrupt enable */
1256 	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
1257 #else
1258 	snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
1259 	tmp = snd_cs46xx_peek(chip, BA1_PDTC);
1260 	tmp &= ~0x000003ff;
1261 	tmp |= (4 << cpcm->shift) - 1;
1262 	snd_cs46xx_poke(chip, BA1_PDTC, tmp);
1263 	snd_cs46xx_poke(chip, BA1_PFIE, pfie);
1264 	snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
1265 #endif
1266 
1267 	return 0;
1268 }
1269 
snd_cs46xx_capture_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)1270 static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream,
1271 					struct snd_pcm_hw_params *hw_params)
1272 {
1273 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1274 	struct snd_pcm_runtime *runtime = substream->runtime;
1275 	int err;
1276 
1277 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1278 	cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
1279 #endif
1280 	if (runtime->periods == CS46XX_FRAGS) {
1281 		if (runtime->dma_area != chip->capt.hw_buf.area)
1282 			snd_pcm_lib_free_pages(substream);
1283 		snd_pcm_set_runtime_buffer(substream, &chip->capt.hw_buf);
1284 		substream->ops = &snd_cs46xx_capture_ops;
1285 	} else {
1286 		if (runtime->dma_area == chip->capt.hw_buf.area)
1287 			snd_pcm_set_runtime_buffer(substream, NULL);
1288 		err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1289 		if (err < 0)
1290 			return err;
1291 		substream->ops = &snd_cs46xx_capture_indirect_ops;
1292 	}
1293 
1294 	return 0;
1295 }
1296 
snd_cs46xx_capture_hw_free(struct snd_pcm_substream * substream)1297 static int snd_cs46xx_capture_hw_free(struct snd_pcm_substream *substream)
1298 {
1299 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1300 	struct snd_pcm_runtime *runtime = substream->runtime;
1301 
1302 	if (runtime->dma_area != chip->capt.hw_buf.area)
1303 		snd_pcm_lib_free_pages(substream);
1304 	snd_pcm_set_runtime_buffer(substream, NULL);
1305 
1306 	return 0;
1307 }
1308 
snd_cs46xx_capture_prepare(struct snd_pcm_substream * substream)1309 static int snd_cs46xx_capture_prepare(struct snd_pcm_substream *substream)
1310 {
1311 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1312 	struct snd_pcm_runtime *runtime = substream->runtime;
1313 
1314 	snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
1315 	chip->capt.shift = 2;
1316 	memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
1317 	chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1318 	chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
1319 	snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
1320 
1321 	return 0;
1322 }
1323 
snd_cs46xx_interrupt(int irq,void * dev_id)1324 static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
1325 {
1326 	struct snd_cs46xx *chip = dev_id;
1327 	u32 status1;
1328 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1329 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1330 	u32 status2;
1331 	int i;
1332 	struct snd_cs46xx_pcm *cpcm = NULL;
1333 #endif
1334 
1335 	/*
1336 	 *  Read the Interrupt Status Register to clear the interrupt
1337 	 */
1338 	status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
1339 	if ((status1 & 0x7fffffff) == 0) {
1340 		snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1341 		return IRQ_NONE;
1342 	}
1343 
1344 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1345 	status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
1346 
1347 	for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
1348 		if (i <= 15) {
1349 			if ( status1 & (1 << i) ) {
1350 				if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
1351 					if (chip->capt.substream)
1352 						snd_pcm_period_elapsed(chip->capt.substream);
1353 				} else {
1354 					if (ins->pcm_channels[i].active &&
1355 					    ins->pcm_channels[i].private_data &&
1356 					    !ins->pcm_channels[i].unlinked) {
1357 						cpcm = ins->pcm_channels[i].private_data;
1358 						snd_pcm_period_elapsed(cpcm->substream);
1359 					}
1360 				}
1361 			}
1362 		} else {
1363 			if ( status2 & (1 << (i - 16))) {
1364 				if (ins->pcm_channels[i].active &&
1365 				    ins->pcm_channels[i].private_data &&
1366 				    !ins->pcm_channels[i].unlinked) {
1367 					cpcm = ins->pcm_channels[i].private_data;
1368 					snd_pcm_period_elapsed(cpcm->substream);
1369 				}
1370 			}
1371 		}
1372 	}
1373 
1374 #else
1375 	/* old dsp */
1376 	if ((status1 & HISR_VC0) && chip->playback_pcm) {
1377 		if (chip->playback_pcm->substream)
1378 			snd_pcm_period_elapsed(chip->playback_pcm->substream);
1379 	}
1380 	if ((status1 & HISR_VC1) && chip->pcm) {
1381 		if (chip->capt.substream)
1382 			snd_pcm_period_elapsed(chip->capt.substream);
1383 	}
1384 #endif
1385 
1386 	if ((status1 & HISR_MIDI) && chip->rmidi) {
1387 		unsigned char c;
1388 
1389 		spin_lock(&chip->reg_lock);
1390 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
1391 			c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
1392 			if ((chip->midcr & MIDCR_RIE) == 0)
1393 				continue;
1394 			snd_rawmidi_receive(chip->midi_input, &c, 1);
1395 		}
1396 		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
1397 			if ((chip->midcr & MIDCR_TIE) == 0)
1398 				break;
1399 			if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
1400 				chip->midcr &= ~MIDCR_TIE;
1401 				snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
1402 				break;
1403 			}
1404 			snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
1405 		}
1406 		spin_unlock(&chip->reg_lock);
1407 	}
1408 	/*
1409 	 *  EOI to the PCI part....reenables interrupts
1410 	 */
1411 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1412 
1413 	return IRQ_HANDLED;
1414 }
1415 
1416 static const struct snd_pcm_hardware snd_cs46xx_playback =
1417 {
1418 	.info =			(SNDRV_PCM_INFO_MMAP |
1419 				 SNDRV_PCM_INFO_INTERLEAVED |
1420 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1421 				 /*SNDRV_PCM_INFO_RESUME*/ |
1422 				 SNDRV_PCM_INFO_SYNC_APPLPTR),
1423 	.formats =		(SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1424 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
1425 				 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
1426 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1427 	.rate_min =		5500,
1428 	.rate_max =		48000,
1429 	.channels_min =		1,
1430 	.channels_max =		2,
1431 	.buffer_bytes_max =	(256 * 1024),
1432 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1433 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1434 	.periods_min =		CS46XX_FRAGS,
1435 	.periods_max =		1024,
1436 	.fifo_size =		0,
1437 };
1438 
1439 static const struct snd_pcm_hardware snd_cs46xx_capture =
1440 {
1441 	.info =			(SNDRV_PCM_INFO_MMAP |
1442 				 SNDRV_PCM_INFO_INTERLEAVED |
1443 				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1444 				 /*SNDRV_PCM_INFO_RESUME*/ |
1445 				 SNDRV_PCM_INFO_SYNC_APPLPTR),
1446 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1447 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1448 	.rate_min =		5500,
1449 	.rate_max =		48000,
1450 	.channels_min =		2,
1451 	.channels_max =		2,
1452 	.buffer_bytes_max =	(256 * 1024),
1453 	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
1454 	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
1455 	.periods_min =		CS46XX_FRAGS,
1456 	.periods_max =		1024,
1457 	.fifo_size =		0,
1458 };
1459 
1460 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1461 
1462 static const unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
1463 
1464 static const struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
1465 	.count = ARRAY_SIZE(period_sizes),
1466 	.list = period_sizes,
1467 	.mask = 0
1468 };
1469 
1470 #endif
1471 
snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime * runtime)1472 static void snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime *runtime)
1473 {
1474 	kfree(runtime->private_data);
1475 }
1476 
_cs46xx_playback_open_channel(struct snd_pcm_substream * substream,int pcm_channel_id)1477 static int _cs46xx_playback_open_channel (struct snd_pcm_substream *substream,int pcm_channel_id)
1478 {
1479 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1480 	struct snd_cs46xx_pcm * cpcm;
1481 	struct snd_pcm_runtime *runtime = substream->runtime;
1482 
1483 	cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
1484 	if (cpcm == NULL)
1485 		return -ENOMEM;
1486 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
1487 				PAGE_SIZE, &cpcm->hw_buf) < 0) {
1488 		kfree(cpcm);
1489 		return -ENOMEM;
1490 	}
1491 
1492 	runtime->hw = snd_cs46xx_playback;
1493 	runtime->private_data = cpcm;
1494 	runtime->private_free = snd_cs46xx_pcm_free_substream;
1495 
1496 	cpcm->substream = substream;
1497 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1498 	mutex_lock(&chip->spos_mutex);
1499 	cpcm->pcm_channel = NULL;
1500 	cpcm->pcm_channel_id = pcm_channel_id;
1501 
1502 
1503 	snd_pcm_hw_constraint_list(runtime, 0,
1504 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1505 				   &hw_constraints_period_sizes);
1506 
1507 	mutex_unlock(&chip->spos_mutex);
1508 #else
1509 	chip->playback_pcm = cpcm; /* HACK */
1510 #endif
1511 
1512 	if (chip->accept_valid)
1513 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1514 	chip->active_ctrl(chip, 1);
1515 
1516 	return 0;
1517 }
1518 
snd_cs46xx_playback_open(struct snd_pcm_substream * substream)1519 static int snd_cs46xx_playback_open(struct snd_pcm_substream *substream)
1520 {
1521 	dev_dbg(substream->pcm->card->dev, "open front channel\n");
1522 	return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
1523 }
1524 
1525 #ifdef CONFIG_SND_CS46XX_NEW_DSP
snd_cs46xx_playback_open_rear(struct snd_pcm_substream * substream)1526 static int snd_cs46xx_playback_open_rear(struct snd_pcm_substream *substream)
1527 {
1528 	dev_dbg(substream->pcm->card->dev, "open rear channel\n");
1529 	return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
1530 }
1531 
snd_cs46xx_playback_open_clfe(struct snd_pcm_substream * substream)1532 static int snd_cs46xx_playback_open_clfe(struct snd_pcm_substream *substream)
1533 {
1534 	dev_dbg(substream->pcm->card->dev, "open center - LFE channel\n");
1535 	return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
1536 }
1537 
snd_cs46xx_playback_open_iec958(struct snd_pcm_substream * substream)1538 static int snd_cs46xx_playback_open_iec958(struct snd_pcm_substream *substream)
1539 {
1540 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1541 
1542 	dev_dbg(chip->card->dev, "open raw iec958 channel\n");
1543 
1544 	mutex_lock(&chip->spos_mutex);
1545 	cs46xx_iec958_pre_open (chip);
1546 	mutex_unlock(&chip->spos_mutex);
1547 
1548 	return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
1549 }
1550 
1551 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream);
1552 
snd_cs46xx_playback_close_iec958(struct snd_pcm_substream * substream)1553 static int snd_cs46xx_playback_close_iec958(struct snd_pcm_substream *substream)
1554 {
1555 	int err;
1556 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1557 
1558 	dev_dbg(chip->card->dev, "close raw iec958 channel\n");
1559 
1560 	err = snd_cs46xx_playback_close(substream);
1561 
1562 	mutex_lock(&chip->spos_mutex);
1563 	cs46xx_iec958_post_close (chip);
1564 	mutex_unlock(&chip->spos_mutex);
1565 
1566 	return err;
1567 }
1568 #endif
1569 
snd_cs46xx_capture_open(struct snd_pcm_substream * substream)1570 static int snd_cs46xx_capture_open(struct snd_pcm_substream *substream)
1571 {
1572 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1573 
1574 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
1575 				PAGE_SIZE, &chip->capt.hw_buf) < 0)
1576 		return -ENOMEM;
1577 	chip->capt.substream = substream;
1578 	substream->runtime->hw = snd_cs46xx_capture;
1579 
1580 	if (chip->accept_valid)
1581 		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1582 
1583 	chip->active_ctrl(chip, 1);
1584 
1585 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1586 	snd_pcm_hw_constraint_list(substream->runtime, 0,
1587 				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1588 				   &hw_constraints_period_sizes);
1589 #endif
1590 	return 0;
1591 }
1592 
snd_cs46xx_playback_close(struct snd_pcm_substream * substream)1593 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream)
1594 {
1595 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1596 	struct snd_pcm_runtime *runtime = substream->runtime;
1597 	struct snd_cs46xx_pcm * cpcm;
1598 
1599 	cpcm = runtime->private_data;
1600 
1601 	/* when playback_open fails, then cpcm can be NULL */
1602 	if (!cpcm) return -ENXIO;
1603 
1604 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1605 	mutex_lock(&chip->spos_mutex);
1606 	if (cpcm->pcm_channel) {
1607 		cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
1608 		cpcm->pcm_channel = NULL;
1609 	}
1610 	mutex_unlock(&chip->spos_mutex);
1611 #else
1612 	chip->playback_pcm = NULL;
1613 #endif
1614 
1615 	cpcm->substream = NULL;
1616 	snd_dma_free_pages(&cpcm->hw_buf);
1617 	chip->active_ctrl(chip, -1);
1618 
1619 	return 0;
1620 }
1621 
snd_cs46xx_capture_close(struct snd_pcm_substream * substream)1622 static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
1623 {
1624 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1625 
1626 	chip->capt.substream = NULL;
1627 	snd_dma_free_pages(&chip->capt.hw_buf);
1628 	chip->active_ctrl(chip, -1);
1629 
1630 	return 0;
1631 }
1632 
1633 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1634 static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
1635 	.open =			snd_cs46xx_playback_open_rear,
1636 	.close =		snd_cs46xx_playback_close,
1637 	.hw_params =		snd_cs46xx_playback_hw_params,
1638 	.hw_free =		snd_cs46xx_playback_hw_free,
1639 	.prepare =		snd_cs46xx_playback_prepare,
1640 	.trigger =		snd_cs46xx_playback_trigger,
1641 	.pointer =		snd_cs46xx_playback_direct_pointer,
1642 };
1643 
1644 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
1645 	.open =			snd_cs46xx_playback_open_rear,
1646 	.close =		snd_cs46xx_playback_close,
1647 	.hw_params =		snd_cs46xx_playback_hw_params,
1648 	.hw_free =		snd_cs46xx_playback_hw_free,
1649 	.prepare =		snd_cs46xx_playback_prepare,
1650 	.trigger =		snd_cs46xx_playback_trigger,
1651 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1652 	.ack =			snd_cs46xx_playback_transfer,
1653 };
1654 
1655 static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
1656 	.open =			snd_cs46xx_playback_open_clfe,
1657 	.close =		snd_cs46xx_playback_close,
1658 	.hw_params =		snd_cs46xx_playback_hw_params,
1659 	.hw_free =		snd_cs46xx_playback_hw_free,
1660 	.prepare =		snd_cs46xx_playback_prepare,
1661 	.trigger =		snd_cs46xx_playback_trigger,
1662 	.pointer =		snd_cs46xx_playback_direct_pointer,
1663 };
1664 
1665 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
1666 	.open =			snd_cs46xx_playback_open_clfe,
1667 	.close =		snd_cs46xx_playback_close,
1668 	.hw_params =		snd_cs46xx_playback_hw_params,
1669 	.hw_free =		snd_cs46xx_playback_hw_free,
1670 	.prepare =		snd_cs46xx_playback_prepare,
1671 	.trigger =		snd_cs46xx_playback_trigger,
1672 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1673 	.ack =			snd_cs46xx_playback_transfer,
1674 };
1675 
1676 static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
1677 	.open =			snd_cs46xx_playback_open_iec958,
1678 	.close =		snd_cs46xx_playback_close_iec958,
1679 	.hw_params =		snd_cs46xx_playback_hw_params,
1680 	.hw_free =		snd_cs46xx_playback_hw_free,
1681 	.prepare =		snd_cs46xx_playback_prepare,
1682 	.trigger =		snd_cs46xx_playback_trigger,
1683 	.pointer =		snd_cs46xx_playback_direct_pointer,
1684 };
1685 
1686 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
1687 	.open =			snd_cs46xx_playback_open_iec958,
1688 	.close =		snd_cs46xx_playback_close_iec958,
1689 	.hw_params =		snd_cs46xx_playback_hw_params,
1690 	.hw_free =		snd_cs46xx_playback_hw_free,
1691 	.prepare =		snd_cs46xx_playback_prepare,
1692 	.trigger =		snd_cs46xx_playback_trigger,
1693 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1694 	.ack =			snd_cs46xx_playback_transfer,
1695 };
1696 
1697 #endif
1698 
1699 static const struct snd_pcm_ops snd_cs46xx_playback_ops = {
1700 	.open =			snd_cs46xx_playback_open,
1701 	.close =		snd_cs46xx_playback_close,
1702 	.hw_params =		snd_cs46xx_playback_hw_params,
1703 	.hw_free =		snd_cs46xx_playback_hw_free,
1704 	.prepare =		snd_cs46xx_playback_prepare,
1705 	.trigger =		snd_cs46xx_playback_trigger,
1706 	.pointer =		snd_cs46xx_playback_direct_pointer,
1707 };
1708 
1709 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
1710 	.open =			snd_cs46xx_playback_open,
1711 	.close =		snd_cs46xx_playback_close,
1712 	.hw_params =		snd_cs46xx_playback_hw_params,
1713 	.hw_free =		snd_cs46xx_playback_hw_free,
1714 	.prepare =		snd_cs46xx_playback_prepare,
1715 	.trigger =		snd_cs46xx_playback_trigger,
1716 	.pointer =		snd_cs46xx_playback_indirect_pointer,
1717 	.ack =			snd_cs46xx_playback_transfer,
1718 };
1719 
1720 static const struct snd_pcm_ops snd_cs46xx_capture_ops = {
1721 	.open =			snd_cs46xx_capture_open,
1722 	.close =		snd_cs46xx_capture_close,
1723 	.hw_params =		snd_cs46xx_capture_hw_params,
1724 	.hw_free =		snd_cs46xx_capture_hw_free,
1725 	.prepare =		snd_cs46xx_capture_prepare,
1726 	.trigger =		snd_cs46xx_capture_trigger,
1727 	.pointer =		snd_cs46xx_capture_direct_pointer,
1728 };
1729 
1730 static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
1731 	.open =			snd_cs46xx_capture_open,
1732 	.close =		snd_cs46xx_capture_close,
1733 	.hw_params =		snd_cs46xx_capture_hw_params,
1734 	.hw_free =		snd_cs46xx_capture_hw_free,
1735 	.prepare =		snd_cs46xx_capture_prepare,
1736 	.trigger =		snd_cs46xx_capture_trigger,
1737 	.pointer =		snd_cs46xx_capture_indirect_pointer,
1738 	.ack =			snd_cs46xx_capture_transfer,
1739 };
1740 
1741 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1742 #define MAX_PLAYBACK_CHANNELS	(DSP_MAX_PCM_CHANNELS - 1)
1743 #else
1744 #define MAX_PLAYBACK_CHANNELS	1
1745 #endif
1746 
snd_cs46xx_pcm(struct snd_cs46xx * chip,int device)1747 int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device)
1748 {
1749 	struct snd_pcm *pcm;
1750 	int err;
1751 
1752 	err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm);
1753 	if (err < 0)
1754 		return err;
1755 
1756 	pcm->private_data = chip;
1757 
1758 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
1759 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
1760 
1761 	/* global setup */
1762 	pcm->info_flags = 0;
1763 	strcpy(pcm->name, "CS46xx");
1764 	chip->pcm = pcm;
1765 
1766 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1767 					      &chip->pci->dev,
1768 					      64*1024, 256*1024);
1769 
1770 	return 0;
1771 }
1772 
1773 
1774 #ifdef CONFIG_SND_CS46XX_NEW_DSP
snd_cs46xx_pcm_rear(struct snd_cs46xx * chip,int device)1775 int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device)
1776 {
1777 	struct snd_pcm *pcm;
1778 	int err;
1779 
1780 	err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm);
1781 	if (err < 0)
1782 		return err;
1783 
1784 	pcm->private_data = chip;
1785 
1786 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
1787 
1788 	/* global setup */
1789 	pcm->info_flags = 0;
1790 	strcpy(pcm->name, "CS46xx - Rear");
1791 	chip->pcm_rear = pcm;
1792 
1793 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1794 					      &chip->pci->dev,
1795 					      64*1024, 256*1024);
1796 
1797 	return 0;
1798 }
1799 
snd_cs46xx_pcm_center_lfe(struct snd_cs46xx * chip,int device)1800 int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device)
1801 {
1802 	struct snd_pcm *pcm;
1803 	int err;
1804 
1805 	err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm);
1806 	if (err < 0)
1807 		return err;
1808 
1809 	pcm->private_data = chip;
1810 
1811 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
1812 
1813 	/* global setup */
1814 	pcm->info_flags = 0;
1815 	strcpy(pcm->name, "CS46xx - Center LFE");
1816 	chip->pcm_center_lfe = pcm;
1817 
1818 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1819 					      &chip->pci->dev,
1820 					      64*1024, 256*1024);
1821 
1822 	return 0;
1823 }
1824 
snd_cs46xx_pcm_iec958(struct snd_cs46xx * chip,int device)1825 int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device)
1826 {
1827 	struct snd_pcm *pcm;
1828 	int err;
1829 
1830 	err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm);
1831 	if (err < 0)
1832 		return err;
1833 
1834 	pcm->private_data = chip;
1835 
1836 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
1837 
1838 	/* global setup */
1839 	pcm->info_flags = 0;
1840 	strcpy(pcm->name, "CS46xx - IEC958");
1841 	chip->pcm_iec958 = pcm;
1842 
1843 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1844 					      &chip->pci->dev,
1845 					      64*1024, 256*1024);
1846 
1847 	return 0;
1848 }
1849 #endif
1850 
1851 /*
1852  *  Mixer routines
1853  */
snd_cs46xx_mixer_free_ac97(struct snd_ac97 * ac97)1854 static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
1855 {
1856 	struct snd_cs46xx *chip = ac97->private_data;
1857 
1858 	if (snd_BUG_ON(ac97 != chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] &&
1859 		       ac97 != chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]))
1860 		return;
1861 
1862 	if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
1863 		chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
1864 		chip->eapd_switch = NULL;
1865 	}
1866 	else
1867 		chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
1868 }
1869 
snd_cs46xx_vol_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)1870 static int snd_cs46xx_vol_info(struct snd_kcontrol *kcontrol,
1871 			       struct snd_ctl_elem_info *uinfo)
1872 {
1873 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1874 	uinfo->count = 2;
1875 	uinfo->value.integer.min = 0;
1876 	uinfo->value.integer.max = 0x7fff;
1877 	return 0;
1878 }
1879 
snd_cs46xx_vol_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1880 static int snd_cs46xx_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1881 {
1882 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1883 	int reg = kcontrol->private_value;
1884 	unsigned int val = snd_cs46xx_peek(chip, reg);
1885 	ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
1886 	ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
1887 	return 0;
1888 }
1889 
snd_cs46xx_vol_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1890 static int snd_cs46xx_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1891 {
1892 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1893 	int reg = kcontrol->private_value;
1894 	unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 |
1895 			    (0xffff - ucontrol->value.integer.value[1]));
1896 	unsigned int old = snd_cs46xx_peek(chip, reg);
1897 	int change = (old != val);
1898 
1899 	if (change) {
1900 		snd_cs46xx_poke(chip, reg, val);
1901 	}
1902 
1903 	return change;
1904 }
1905 
1906 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1907 
snd_cs46xx_vol_dac_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1908 static int snd_cs46xx_vol_dac_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1909 {
1910 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1911 
1912 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
1913 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
1914 
1915 	return 0;
1916 }
1917 
snd_cs46xx_vol_dac_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1918 static int snd_cs46xx_vol_dac_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1919 {
1920 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1921 	int change = 0;
1922 
1923 	if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
1924 	    chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
1925 		cs46xx_dsp_set_dac_volume(chip,
1926 					  ucontrol->value.integer.value[0],
1927 					  ucontrol->value.integer.value[1]);
1928 		change = 1;
1929 	}
1930 
1931 	return change;
1932 }
1933 
1934 #if 0
1935 static int snd_cs46xx_vol_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1936 {
1937 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1938 
1939 	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
1940 	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
1941 	return 0;
1942 }
1943 
1944 static int snd_cs46xx_vol_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1945 {
1946 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1947 	int change = 0;
1948 
1949 	if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
1950 	    chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
1951 		cs46xx_dsp_set_iec958_volume (chip,
1952 					      ucontrol->value.integer.value[0],
1953 					      ucontrol->value.integer.value[1]);
1954 		change = 1;
1955 	}
1956 
1957 	return change;
1958 }
1959 #endif
1960 
1961 #define snd_mixer_boolean_info		snd_ctl_boolean_mono_info
1962 
snd_cs46xx_iec958_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1963 static int snd_cs46xx_iec958_get(struct snd_kcontrol *kcontrol,
1964                                  struct snd_ctl_elem_value *ucontrol)
1965 {
1966 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1967 	int reg = kcontrol->private_value;
1968 
1969 	if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
1970 		ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1971 	else
1972 		ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
1973 
1974 	return 0;
1975 }
1976 
snd_cs46xx_iec958_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1977 static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol,
1978                                   struct snd_ctl_elem_value *ucontrol)
1979 {
1980 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1981 	int change, res;
1982 
1983 	switch (kcontrol->private_value) {
1984 	case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
1985 		mutex_lock(&chip->spos_mutex);
1986 		change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1987 		if (ucontrol->value.integer.value[0] && !change)
1988 			cs46xx_dsp_enable_spdif_out(chip);
1989 		else if (change && !ucontrol->value.integer.value[0])
1990 			cs46xx_dsp_disable_spdif_out(chip);
1991 
1992 		res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
1993 		mutex_unlock(&chip->spos_mutex);
1994 		break;
1995 	case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
1996 		change = chip->dsp_spos_instance->spdif_status_in;
1997 		if (ucontrol->value.integer.value[0] && !change) {
1998 			cs46xx_dsp_enable_spdif_in(chip);
1999 			/* restore volume */
2000 		}
2001 		else if (change && !ucontrol->value.integer.value[0])
2002 			cs46xx_dsp_disable_spdif_in(chip);
2003 
2004 		res = (change != chip->dsp_spos_instance->spdif_status_in);
2005 		break;
2006 	default:
2007 		res = -EINVAL;
2008 		snd_BUG(); /* should never happen ... */
2009 	}
2010 
2011 	return res;
2012 }
2013 
snd_cs46xx_adc_capture_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2014 static int snd_cs46xx_adc_capture_get(struct snd_kcontrol *kcontrol,
2015                                       struct snd_ctl_elem_value *ucontrol)
2016 {
2017 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2018 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2019 
2020 	if (ins->adc_input != NULL)
2021 		ucontrol->value.integer.value[0] = 1;
2022 	else
2023 		ucontrol->value.integer.value[0] = 0;
2024 
2025 	return 0;
2026 }
2027 
snd_cs46xx_adc_capture_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2028 static int snd_cs46xx_adc_capture_put(struct snd_kcontrol *kcontrol,
2029                                       struct snd_ctl_elem_value *ucontrol)
2030 {
2031 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2032 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2033 	int change = 0;
2034 
2035 	if (ucontrol->value.integer.value[0] && !ins->adc_input) {
2036 		cs46xx_dsp_enable_adc_capture(chip);
2037 		change = 1;
2038 	} else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
2039 		cs46xx_dsp_disable_adc_capture(chip);
2040 		change = 1;
2041 	}
2042 	return change;
2043 }
2044 
snd_cs46xx_pcm_capture_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2045 static int snd_cs46xx_pcm_capture_get(struct snd_kcontrol *kcontrol,
2046                                       struct snd_ctl_elem_value *ucontrol)
2047 {
2048 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2049 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2050 
2051 	if (ins->pcm_input != NULL)
2052 		ucontrol->value.integer.value[0] = 1;
2053 	else
2054 		ucontrol->value.integer.value[0] = 0;
2055 
2056 	return 0;
2057 }
2058 
2059 
snd_cs46xx_pcm_capture_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2060 static int snd_cs46xx_pcm_capture_put(struct snd_kcontrol *kcontrol,
2061                                       struct snd_ctl_elem_value *ucontrol)
2062 {
2063 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2064 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2065 	int change = 0;
2066 
2067 	if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
2068 		cs46xx_dsp_enable_pcm_capture(chip);
2069 		change = 1;
2070 	} else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
2071 		cs46xx_dsp_disable_pcm_capture(chip);
2072 		change = 1;
2073 	}
2074 
2075 	return change;
2076 }
2077 
snd_herc_spdif_select_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2078 static int snd_herc_spdif_select_get(struct snd_kcontrol *kcontrol,
2079                                      struct snd_ctl_elem_value *ucontrol)
2080 {
2081 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2082 
2083 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
2084 
2085 	if (val1 & EGPIODR_GPOE0)
2086 		ucontrol->value.integer.value[0] = 1;
2087 	else
2088 		ucontrol->value.integer.value[0] = 0;
2089 
2090 	return 0;
2091 }
2092 
2093 /*
2094  *	Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
2095  */
snd_herc_spdif_select_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2096 static int snd_herc_spdif_select_put(struct snd_kcontrol *kcontrol,
2097                                        struct snd_ctl_elem_value *ucontrol)
2098 {
2099 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2100 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
2101 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
2102 
2103 	if (ucontrol->value.integer.value[0]) {
2104 		/* optical is default */
2105 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
2106 				   EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
2107 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
2108 				   EGPIOPTR_GPPT0 | val2); /* open-drain on output */
2109 	} else {
2110 		/* coaxial */
2111 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
2112 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
2113 	}
2114 
2115 	/* checking diff from the EGPIO direction register
2116 	   should be enough */
2117 	return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
2118 }
2119 
2120 
snd_cs46xx_spdif_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)2121 static int snd_cs46xx_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2122 {
2123 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2124 	uinfo->count = 1;
2125 	return 0;
2126 }
2127 
snd_cs46xx_spdif_default_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2128 static int snd_cs46xx_spdif_default_get(struct snd_kcontrol *kcontrol,
2129 					struct snd_ctl_elem_value *ucontrol)
2130 {
2131 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2132 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2133 
2134 	mutex_lock(&chip->spos_mutex);
2135 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
2136 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
2137 	ucontrol->value.iec958.status[2] = 0;
2138 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
2139 	mutex_unlock(&chip->spos_mutex);
2140 
2141 	return 0;
2142 }
2143 
snd_cs46xx_spdif_default_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2144 static int snd_cs46xx_spdif_default_put(struct snd_kcontrol *kcontrol,
2145 					struct snd_ctl_elem_value *ucontrol)
2146 {
2147 	struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2148 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2149 	unsigned int val;
2150 	int change;
2151 
2152 	mutex_lock(&chip->spos_mutex);
2153 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2154 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
2155 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
2156 		/* left and right validity bit */
2157 		(1 << 13) | (1 << 12);
2158 
2159 
2160 	change = (unsigned int)ins->spdif_csuv_default != val;
2161 	ins->spdif_csuv_default = val;
2162 
2163 	if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
2164 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2165 
2166 	mutex_unlock(&chip->spos_mutex);
2167 
2168 	return change;
2169 }
2170 
snd_cs46xx_spdif_mask_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2171 static int snd_cs46xx_spdif_mask_get(struct snd_kcontrol *kcontrol,
2172 				     struct snd_ctl_elem_value *ucontrol)
2173 {
2174 	ucontrol->value.iec958.status[0] = 0xff;
2175 	ucontrol->value.iec958.status[1] = 0xff;
2176 	ucontrol->value.iec958.status[2] = 0x00;
2177 	ucontrol->value.iec958.status[3] = 0xff;
2178 	return 0;
2179 }
2180 
snd_cs46xx_spdif_stream_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2181 static int snd_cs46xx_spdif_stream_get(struct snd_kcontrol *kcontrol,
2182                                          struct snd_ctl_elem_value *ucontrol)
2183 {
2184 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2185 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2186 
2187 	mutex_lock(&chip->spos_mutex);
2188 	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
2189 	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
2190 	ucontrol->value.iec958.status[2] = 0;
2191 	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
2192 	mutex_unlock(&chip->spos_mutex);
2193 
2194 	return 0;
2195 }
2196 
snd_cs46xx_spdif_stream_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2197 static int snd_cs46xx_spdif_stream_put(struct snd_kcontrol *kcontrol,
2198                                         struct snd_ctl_elem_value *ucontrol)
2199 {
2200 	struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2201 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2202 	unsigned int val;
2203 	int change;
2204 
2205 	mutex_lock(&chip->spos_mutex);
2206 	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2207 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
2208 		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
2209 		/* left and right validity bit */
2210 		(1 << 13) | (1 << 12);
2211 
2212 
2213 	change = ins->spdif_csuv_stream != val;
2214 	ins->spdif_csuv_stream = val;
2215 
2216 	if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
2217 		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2218 
2219 	mutex_unlock(&chip->spos_mutex);
2220 
2221 	return change;
2222 }
2223 
2224 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2225 
2226 
2227 static const struct snd_kcontrol_new snd_cs46xx_controls[] = {
2228 {
2229 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2230 	.name = "DAC Volume",
2231 	.info = snd_cs46xx_vol_info,
2232 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2233 	.get = snd_cs46xx_vol_get,
2234 	.put = snd_cs46xx_vol_put,
2235 	.private_value = BA1_PVOL,
2236 #else
2237 	.get = snd_cs46xx_vol_dac_get,
2238 	.put = snd_cs46xx_vol_dac_put,
2239 #endif
2240 },
2241 
2242 {
2243 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2244 	.name = "ADC Volume",
2245 	.info = snd_cs46xx_vol_info,
2246 	.get = snd_cs46xx_vol_get,
2247 	.put = snd_cs46xx_vol_put,
2248 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2249 	.private_value = BA1_CVOL,
2250 #else
2251 	.private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
2252 #endif
2253 },
2254 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2255 {
2256 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2257 	.name = "ADC Capture Switch",
2258 	.info = snd_mixer_boolean_info,
2259 	.get = snd_cs46xx_adc_capture_get,
2260 	.put = snd_cs46xx_adc_capture_put
2261 },
2262 {
2263 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2264 	.name = "DAC Capture Switch",
2265 	.info = snd_mixer_boolean_info,
2266 	.get = snd_cs46xx_pcm_capture_get,
2267 	.put = snd_cs46xx_pcm_capture_put
2268 },
2269 {
2270 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2271 	.name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
2272 	.info = snd_mixer_boolean_info,
2273 	.get = snd_cs46xx_iec958_get,
2274 	.put = snd_cs46xx_iec958_put,
2275 	.private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
2276 },
2277 {
2278 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2279 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
2280 	.info = snd_mixer_boolean_info,
2281 	.get = snd_cs46xx_iec958_get,
2282 	.put = snd_cs46xx_iec958_put,
2283 	.private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
2284 },
2285 #if 0
2286 /* Input IEC958 volume does not work for the moment. (Benny) */
2287 {
2288 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2289 	.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
2290 	.info = snd_cs46xx_vol_info,
2291 	.get = snd_cs46xx_vol_iec958_get,
2292 	.put = snd_cs46xx_vol_iec958_put,
2293 	.private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
2294 },
2295 #endif
2296 {
2297 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2298 	.name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2299 	.info =	 snd_cs46xx_spdif_info,
2300 	.get =	 snd_cs46xx_spdif_default_get,
2301 	.put =   snd_cs46xx_spdif_default_put,
2302 },
2303 {
2304 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2305 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2306 	.info =	 snd_cs46xx_spdif_info,
2307         .get =	 snd_cs46xx_spdif_mask_get,
2308 	.access = SNDRV_CTL_ELEM_ACCESS_READ
2309 },
2310 {
2311 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
2312 	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2313 	.info =	 snd_cs46xx_spdif_info,
2314 	.get =	 snd_cs46xx_spdif_stream_get,
2315 	.put =	 snd_cs46xx_spdif_stream_put
2316 },
2317 
2318 #endif
2319 };
2320 
2321 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2322 /* set primary cs4294 codec into Extended Audio Mode */
snd_cs46xx_front_dup_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2323 static int snd_cs46xx_front_dup_get(struct snd_kcontrol *kcontrol,
2324 				    struct snd_ctl_elem_value *ucontrol)
2325 {
2326 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2327 	unsigned short val;
2328 	val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
2329 	ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
2330 	return 0;
2331 }
2332 
snd_cs46xx_front_dup_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2333 static int snd_cs46xx_front_dup_put(struct snd_kcontrol *kcontrol,
2334 				    struct snd_ctl_elem_value *ucontrol)
2335 {
2336 	struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2337 	return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2338 				    AC97_CSR_ACMODE, 0x200,
2339 				    ucontrol->value.integer.value[0] ? 0 : 0x200);
2340 }
2341 
2342 static const struct snd_kcontrol_new snd_cs46xx_front_dup_ctl = {
2343 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2344 	.name = "Duplicate Front",
2345 	.info = snd_mixer_boolean_info,
2346 	.get = snd_cs46xx_front_dup_get,
2347 	.put = snd_cs46xx_front_dup_put,
2348 };
2349 #endif
2350 
2351 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2352 /* Only available on the Hercules Game Theater XP soundcard */
2353 static const struct snd_kcontrol_new snd_hercules_controls[] = {
2354 {
2355 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2356 	.name = "Optical/Coaxial SPDIF Input Switch",
2357 	.info = snd_mixer_boolean_info,
2358 	.get = snd_herc_spdif_select_get,
2359 	.put = snd_herc_spdif_select_put,
2360 },
2361 };
2362 
2363 
snd_cs46xx_codec_reset(struct snd_ac97 * ac97)2364 static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
2365 {
2366 	unsigned long end_time;
2367 	int err;
2368 
2369 	/* reset to defaults */
2370 	snd_ac97_write(ac97, AC97_RESET, 0);
2371 
2372 	/* set the desired CODEC mode */
2373 	if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
2374 		dev_dbg(ac97->bus->card->dev, "CODEC1 mode %04x\n", 0x0);
2375 		snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x0);
2376 	} else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
2377 		dev_dbg(ac97->bus->card->dev, "CODEC2 mode %04x\n", 0x3);
2378 		snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x3);
2379 	} else {
2380 		snd_BUG(); /* should never happen ... */
2381 	}
2382 
2383 	udelay(50);
2384 
2385 	/* it's necessary to wait awhile until registers are accessible after RESET */
2386 	/* because the PCM or MASTER volume registers can be modified, */
2387 	/* the REC_GAIN register is used for tests */
2388 	end_time = jiffies + HZ;
2389 	do {
2390 		unsigned short ext_mid;
2391 
2392 		/* use preliminary reads to settle the communication */
2393 		snd_ac97_read(ac97, AC97_RESET);
2394 		snd_ac97_read(ac97, AC97_VENDOR_ID1);
2395 		snd_ac97_read(ac97, AC97_VENDOR_ID2);
2396 		/* modem? */
2397 		ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2398 		if (ext_mid != 0xffff && (ext_mid & 1) != 0)
2399 			return;
2400 
2401 		/* test if we can write to the record gain volume register */
2402 		snd_ac97_write(ac97, AC97_REC_GAIN, 0x8a05);
2403 		err = snd_ac97_read(ac97, AC97_REC_GAIN);
2404 		if (err == 0x8a05)
2405 			return;
2406 
2407 		msleep(10);
2408 	} while (time_after_eq(end_time, jiffies));
2409 
2410 	dev_err(ac97->bus->card->dev,
2411 		"CS46xx secondary codec doesn't respond!\n");
2412 }
2413 #endif
2414 
cs46xx_detect_codec(struct snd_cs46xx * chip,int codec)2415 static int cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
2416 {
2417 	int idx, err;
2418 	struct snd_ac97_template ac97;
2419 
2420 	memset(&ac97, 0, sizeof(ac97));
2421 	ac97.private_data = chip;
2422 	ac97.private_free = snd_cs46xx_mixer_free_ac97;
2423 	ac97.num = codec;
2424 	if (chip->amplifier_ctrl == amp_voyetra)
2425 		ac97.scaps = AC97_SCAP_INV_EAPD;
2426 
2427 	if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
2428 		snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
2429 		udelay(10);
2430 		if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
2431 			dev_dbg(chip->card->dev,
2432 				"secondary codec not present\n");
2433 			return -ENXIO;
2434 		}
2435 	}
2436 
2437 	snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
2438 	for (idx = 0; idx < 100; ++idx) {
2439 		if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
2440 			err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
2441 			return err;
2442 		}
2443 		msleep(10);
2444 	}
2445 	dev_dbg(chip->card->dev, "codec %d detection timeout\n", codec);
2446 	return -ENXIO;
2447 }
2448 
snd_cs46xx_mixer(struct snd_cs46xx * chip,int spdif_device)2449 int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
2450 {
2451 	struct snd_card *card = chip->card;
2452 	int err;
2453 	unsigned int idx;
2454 	static const struct snd_ac97_bus_ops ops = {
2455 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2456 		.reset = snd_cs46xx_codec_reset,
2457 #endif
2458 		.write = snd_cs46xx_ac97_write,
2459 		.read = snd_cs46xx_ac97_read,
2460 	};
2461 
2462 	/* detect primary codec */
2463 	chip->nr_ac97_codecs = 0;
2464 	dev_dbg(chip->card->dev, "detecting primary codec\n");
2465 	err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus);
2466 	if (err < 0)
2467 		return err;
2468 
2469 	if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
2470 		return -ENXIO;
2471 	chip->nr_ac97_codecs = 1;
2472 
2473 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2474 	dev_dbg(chip->card->dev, "detecting secondary codec\n");
2475 	/* try detect a secondary codec */
2476 	if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
2477 		chip->nr_ac97_codecs = 2;
2478 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2479 
2480 	/* add cs4630 mixer controls */
2481 	for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
2482 		struct snd_kcontrol *kctl;
2483 		kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
2484 		if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
2485 			kctl->id.device = spdif_device;
2486 		err = snd_ctl_add(card, kctl);
2487 		if (err < 0)
2488 			return err;
2489 	}
2490 
2491 	/* get EAPD mixer switch (for voyetra hack) */
2492 	chip->eapd_switch = snd_ctl_find_id_mixer(chip->card,
2493 						  "External Amplifier");
2494 
2495 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2496 	if (chip->nr_ac97_codecs == 1) {
2497 		unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
2498 		if ((id2 & 0xfff0) == 0x5920) {	/* CS4294 and CS4298 */
2499 			err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
2500 			if (err < 0)
2501 				return err;
2502 			snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2503 					     AC97_CSR_ACMODE, 0x200);
2504 		}
2505 	}
2506 	/* do soundcard specific mixer setup */
2507 	if (chip->mixer_init) {
2508 		dev_dbg(chip->card->dev, "calling chip->mixer_init(chip);\n");
2509 		chip->mixer_init(chip);
2510 	}
2511 #endif
2512 
2513  	/* turn on amplifier */
2514 	chip->amplifier_ctrl(chip, 1);
2515 
2516 	return 0;
2517 }
2518 
2519 /*
2520  *  RawMIDI interface
2521  */
2522 
snd_cs46xx_midi_reset(struct snd_cs46xx * chip)2523 static void snd_cs46xx_midi_reset(struct snd_cs46xx *chip)
2524 {
2525 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
2526 	udelay(100);
2527 	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2528 }
2529 
snd_cs46xx_midi_input_open(struct snd_rawmidi_substream * substream)2530 static int snd_cs46xx_midi_input_open(struct snd_rawmidi_substream *substream)
2531 {
2532 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2533 
2534 	chip->active_ctrl(chip, 1);
2535 	spin_lock_irq(&chip->reg_lock);
2536 	chip->uartm |= CS46XX_MODE_INPUT;
2537 	chip->midcr |= MIDCR_RXE;
2538 	chip->midi_input = substream;
2539 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2540 		snd_cs46xx_midi_reset(chip);
2541 	} else {
2542 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2543 	}
2544 	spin_unlock_irq(&chip->reg_lock);
2545 	return 0;
2546 }
2547 
snd_cs46xx_midi_input_close(struct snd_rawmidi_substream * substream)2548 static int snd_cs46xx_midi_input_close(struct snd_rawmidi_substream *substream)
2549 {
2550 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2551 
2552 	spin_lock_irq(&chip->reg_lock);
2553 	chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
2554 	chip->midi_input = NULL;
2555 	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2556 		snd_cs46xx_midi_reset(chip);
2557 	} else {
2558 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2559 	}
2560 	chip->uartm &= ~CS46XX_MODE_INPUT;
2561 	spin_unlock_irq(&chip->reg_lock);
2562 	chip->active_ctrl(chip, -1);
2563 	return 0;
2564 }
2565 
snd_cs46xx_midi_output_open(struct snd_rawmidi_substream * substream)2566 static int snd_cs46xx_midi_output_open(struct snd_rawmidi_substream *substream)
2567 {
2568 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2569 
2570 	chip->active_ctrl(chip, 1);
2571 
2572 	spin_lock_irq(&chip->reg_lock);
2573 	chip->uartm |= CS46XX_MODE_OUTPUT;
2574 	chip->midcr |= MIDCR_TXE;
2575 	chip->midi_output = substream;
2576 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2577 		snd_cs46xx_midi_reset(chip);
2578 	} else {
2579 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2580 	}
2581 	spin_unlock_irq(&chip->reg_lock);
2582 	return 0;
2583 }
2584 
snd_cs46xx_midi_output_close(struct snd_rawmidi_substream * substream)2585 static int snd_cs46xx_midi_output_close(struct snd_rawmidi_substream *substream)
2586 {
2587 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2588 
2589 	spin_lock_irq(&chip->reg_lock);
2590 	chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
2591 	chip->midi_output = NULL;
2592 	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2593 		snd_cs46xx_midi_reset(chip);
2594 	} else {
2595 		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2596 	}
2597 	chip->uartm &= ~CS46XX_MODE_OUTPUT;
2598 	spin_unlock_irq(&chip->reg_lock);
2599 	chip->active_ctrl(chip, -1);
2600 	return 0;
2601 }
2602 
snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream * substream,int up)2603 static void snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
2604 {
2605 	unsigned long flags;
2606 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2607 
2608 	spin_lock_irqsave(&chip->reg_lock, flags);
2609 	if (up) {
2610 		if ((chip->midcr & MIDCR_RIE) == 0) {
2611 			chip->midcr |= MIDCR_RIE;
2612 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2613 		}
2614 	} else {
2615 		if (chip->midcr & MIDCR_RIE) {
2616 			chip->midcr &= ~MIDCR_RIE;
2617 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2618 		}
2619 	}
2620 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2621 }
2622 
snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream * substream,int up)2623 static void snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
2624 {
2625 	unsigned long flags;
2626 	struct snd_cs46xx *chip = substream->rmidi->private_data;
2627 	unsigned char byte;
2628 
2629 	spin_lock_irqsave(&chip->reg_lock, flags);
2630 	if (up) {
2631 		if ((chip->midcr & MIDCR_TIE) == 0) {
2632 			chip->midcr |= MIDCR_TIE;
2633 			/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2634 			while ((chip->midcr & MIDCR_TIE) &&
2635 			       (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
2636 				if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2637 					chip->midcr &= ~MIDCR_TIE;
2638 				} else {
2639 					snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
2640 				}
2641 			}
2642 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2643 		}
2644 	} else {
2645 		if (chip->midcr & MIDCR_TIE) {
2646 			chip->midcr &= ~MIDCR_TIE;
2647 			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2648 		}
2649 	}
2650 	spin_unlock_irqrestore(&chip->reg_lock, flags);
2651 }
2652 
2653 static const struct snd_rawmidi_ops snd_cs46xx_midi_output =
2654 {
2655 	.open =		snd_cs46xx_midi_output_open,
2656 	.close =	snd_cs46xx_midi_output_close,
2657 	.trigger =	snd_cs46xx_midi_output_trigger,
2658 };
2659 
2660 static const struct snd_rawmidi_ops snd_cs46xx_midi_input =
2661 {
2662 	.open =		snd_cs46xx_midi_input_open,
2663 	.close =	snd_cs46xx_midi_input_close,
2664 	.trigger =	snd_cs46xx_midi_input_trigger,
2665 };
2666 
snd_cs46xx_midi(struct snd_cs46xx * chip,int device)2667 int snd_cs46xx_midi(struct snd_cs46xx *chip, int device)
2668 {
2669 	struct snd_rawmidi *rmidi;
2670 	int err;
2671 
2672 	err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi);
2673 	if (err < 0)
2674 		return err;
2675 	strcpy(rmidi->name, "CS46XX");
2676 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
2677 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
2678 	rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
2679 	rmidi->private_data = chip;
2680 	chip->rmidi = rmidi;
2681 	return 0;
2682 }
2683 
2684 
2685 /*
2686  * gameport interface
2687  */
2688 
2689 #if IS_REACHABLE(CONFIG_GAMEPORT)
2690 
snd_cs46xx_gameport_trigger(struct gameport * gameport)2691 static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
2692 {
2693 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2694 
2695 	if (snd_BUG_ON(!chip))
2696 		return;
2697 	snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
2698 }
2699 
snd_cs46xx_gameport_read(struct gameport * gameport)2700 static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
2701 {
2702 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2703 
2704 	if (snd_BUG_ON(!chip))
2705 		return 0;
2706 	return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
2707 }
2708 
snd_cs46xx_gameport_cooked_read(struct gameport * gameport,int * axes,int * buttons)2709 static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
2710 {
2711 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2712 	unsigned js1, js2, jst;
2713 
2714 	if (snd_BUG_ON(!chip))
2715 		return 0;
2716 
2717 	js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
2718 	js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
2719 	jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
2720 
2721 	*buttons = (~jst >> 4) & 0x0F;
2722 
2723 	axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
2724 	axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
2725 	axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
2726 	axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
2727 
2728 	for(jst=0;jst<4;++jst)
2729 		if(axes[jst]==0xFFFF) axes[jst] = -1;
2730 	return 0;
2731 }
2732 
snd_cs46xx_gameport_open(struct gameport * gameport,int mode)2733 static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
2734 {
2735 	switch (mode) {
2736 	case GAMEPORT_MODE_COOKED:
2737 		return 0;
2738 	case GAMEPORT_MODE_RAW:
2739 		return 0;
2740 	default:
2741 		return -1;
2742 	}
2743 	return 0;
2744 }
2745 
snd_cs46xx_gameport(struct snd_cs46xx * chip)2746 int snd_cs46xx_gameport(struct snd_cs46xx *chip)
2747 {
2748 	struct gameport *gp;
2749 
2750 	chip->gameport = gp = gameport_allocate_port();
2751 	if (!gp) {
2752 		dev_err(chip->card->dev,
2753 			"cannot allocate memory for gameport\n");
2754 		return -ENOMEM;
2755 	}
2756 
2757 	gameport_set_name(gp, "CS46xx Gameport");
2758 	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
2759 	gameport_set_dev_parent(gp, &chip->pci->dev);
2760 	gameport_set_port_data(gp, chip);
2761 
2762 	gp->open = snd_cs46xx_gameport_open;
2763 	gp->read = snd_cs46xx_gameport_read;
2764 	gp->trigger = snd_cs46xx_gameport_trigger;
2765 	gp->cooked_read = snd_cs46xx_gameport_cooked_read;
2766 
2767 	snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
2768 	snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
2769 
2770 	gameport_register_port(gp);
2771 
2772 	return 0;
2773 }
2774 
snd_cs46xx_remove_gameport(struct snd_cs46xx * chip)2775 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip)
2776 {
2777 	if (chip->gameport) {
2778 		gameport_unregister_port(chip->gameport);
2779 		chip->gameport = NULL;
2780 	}
2781 }
2782 #else
snd_cs46xx_gameport(struct snd_cs46xx * chip)2783 int snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
snd_cs46xx_remove_gameport(struct snd_cs46xx * chip)2784 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip) { }
2785 #endif /* CONFIG_GAMEPORT */
2786 
2787 #ifdef CONFIG_SND_PROC_FS
2788 /*
2789  *  proc interface
2790  */
2791 
snd_cs46xx_io_read(struct snd_info_entry * entry,void * file_private_data,struct file * file,char __user * buf,size_t count,loff_t pos)2792 static ssize_t snd_cs46xx_io_read(struct snd_info_entry *entry,
2793 				  void *file_private_data,
2794 				  struct file *file, char __user *buf,
2795 				  size_t count, loff_t pos)
2796 {
2797 	struct snd_cs46xx_region *region = entry->private_data;
2798 
2799 	if (copy_to_user_fromio(buf, region->remap_addr + pos, count))
2800 		return -EFAULT;
2801 	return count;
2802 }
2803 
2804 static const struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
2805 	.read = snd_cs46xx_io_read,
2806 };
2807 
snd_cs46xx_proc_init(struct snd_card * card,struct snd_cs46xx * chip)2808 static int snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
2809 {
2810 	struct snd_info_entry *entry;
2811 	int idx;
2812 
2813 	for (idx = 0; idx < 5; idx++) {
2814 		struct snd_cs46xx_region *region = &chip->region.idx[idx];
2815 		if (! snd_card_proc_new(card, region->name, &entry)) {
2816 			entry->content = SNDRV_INFO_CONTENT_DATA;
2817 			entry->private_data = chip;
2818 			entry->c.ops = &snd_cs46xx_proc_io_ops;
2819 			entry->size = region->size;
2820 			entry->mode = S_IFREG | 0400;
2821 		}
2822 	}
2823 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2824 	cs46xx_dsp_proc_init(card, chip);
2825 #endif
2826 	return 0;
2827 }
2828 
snd_cs46xx_proc_done(struct snd_cs46xx * chip)2829 static int snd_cs46xx_proc_done(struct snd_cs46xx *chip)
2830 {
2831 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2832 	cs46xx_dsp_proc_done(chip);
2833 #endif
2834 	return 0;
2835 }
2836 #else /* !CONFIG_SND_PROC_FS */
2837 #define snd_cs46xx_proc_init(card, chip)
2838 #define snd_cs46xx_proc_done(chip)
2839 #endif
2840 
2841 /*
2842  * stop the h/w
2843  */
snd_cs46xx_hw_stop(struct snd_cs46xx * chip)2844 static void snd_cs46xx_hw_stop(struct snd_cs46xx *chip)
2845 {
2846 	unsigned int tmp;
2847 
2848 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
2849 	tmp &= ~0x0000f03f;
2850 	tmp |=  0x00000010;
2851 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt disable */
2852 
2853 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
2854 	tmp &= ~0x0000003f;
2855 	tmp |=  0x00000011;
2856 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt disable */
2857 
2858 	/*
2859          *  Stop playback DMA.
2860 	 */
2861 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
2862 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
2863 
2864 	/*
2865          *  Stop capture DMA.
2866 	 */
2867 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
2868 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
2869 
2870 	/*
2871          *  Reset the processor.
2872          */
2873 	snd_cs46xx_reset(chip);
2874 
2875 	snd_cs46xx_proc_stop(chip);
2876 
2877 	/*
2878 	 *  Power down the PLL.
2879 	 */
2880 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2881 
2882 	/*
2883 	 *  Turn off the Processor by turning off the software clock enable flag in
2884 	 *  the clock control register.
2885 	 */
2886 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
2887 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
2888 }
2889 
2890 
snd_cs46xx_free(struct snd_card * card)2891 static void snd_cs46xx_free(struct snd_card *card)
2892 {
2893 	struct snd_cs46xx *chip = card->private_data;
2894 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2895 	int idx;
2896 #endif
2897 
2898 	if (chip->active_ctrl)
2899 		chip->active_ctrl(chip, 1);
2900 
2901 	snd_cs46xx_remove_gameport(chip);
2902 
2903 	if (chip->amplifier_ctrl)
2904 		chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
2905 
2906 	snd_cs46xx_proc_done(chip);
2907 
2908 	snd_cs46xx_hw_stop(chip);
2909 
2910 	if (chip->active_ctrl)
2911 		chip->active_ctrl(chip, -chip->amplifier);
2912 
2913 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2914 	if (chip->dsp_spos_instance) {
2915 		cs46xx_dsp_spos_destroy(chip);
2916 		chip->dsp_spos_instance = NULL;
2917 	}
2918 	for (idx = 0; idx < CS46XX_DSP_MODULES; idx++)
2919 		free_module_desc(chip->modules[idx]);
2920 #else
2921 	vfree(chip->ba1);
2922 #endif
2923 }
2924 
2925 /*
2926  *  initialize chip
2927  */
snd_cs46xx_chip_init(struct snd_cs46xx * chip)2928 static int snd_cs46xx_chip_init(struct snd_cs46xx *chip)
2929 {
2930 	int timeout;
2931 
2932 	/*
2933 	 *  First, blast the clock control register to zero so that the PLL starts
2934          *  out in a known state, and blast the master serial port control register
2935          *  to zero so that the serial ports also start out in a known state.
2936          */
2937         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2938         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
2939 
2940 	/*
2941 	 *  If we are in AC97 mode, then we must set the part to a host controlled
2942          *  AC-link.  Otherwise, we won't be able to bring up the link.
2943          */
2944 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2945 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 |
2946 			   SERACC_TWO_CODECS);	/* 2.00 dual codecs */
2947 	/* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
2948 #else
2949 	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
2950 #endif
2951 
2952         /*
2953          *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
2954          *  spec) and then drive it high.  This is done for non AC97 modes since
2955          *  there might be logic external to the CS461x that uses the ARST# line
2956          *  for a reset.
2957          */
2958 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
2959 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2960 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
2961 #endif
2962 	udelay(50);
2963 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
2964 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2965 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
2966 #endif
2967 
2968 	/*
2969 	 *  The first thing we do here is to enable sync generation.  As soon
2970 	 *  as we start receiving bit clock, we'll start producing the SYNC
2971 	 *  signal.
2972 	 */
2973 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
2974 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2975 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
2976 #endif
2977 
2978 	/*
2979 	 *  Now wait for a short while to allow the AC97 part to start
2980 	 *  generating bit clock (so we don't try to start the PLL without an
2981 	 *  input clock).
2982 	 */
2983 	mdelay(10);
2984 
2985 	/*
2986 	 *  Set the serial port timing configuration, so that
2987 	 *  the clock control circuit gets its clock from the correct place.
2988 	 */
2989 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
2990 
2991 	/*
2992 	 *  Write the selected clock control setup to the hardware.  Do not turn on
2993 	 *  SWCE yet (if requested), so that the devices clocked by the output of
2994 	 *  PLL are not clocked until the PLL is stable.
2995 	 */
2996 	snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
2997 	snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
2998 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
2999 
3000 	/*
3001 	 *  Power up the PLL.
3002 	 */
3003 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
3004 
3005 	/*
3006          *  Wait until the PLL has stabilized.
3007 	 */
3008 	msleep(100);
3009 
3010 	/*
3011 	 *  Turn on clocking of the core so that we can setup the serial ports.
3012 	 */
3013 	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
3014 
3015 	/*
3016 	 * Enable FIFO  Host Bypass
3017 	 */
3018 	snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
3019 
3020 	/*
3021 	 *  Fill the serial port FIFOs with silence.
3022 	 */
3023 	snd_cs46xx_clear_serial_FIFOs(chip);
3024 
3025 	/*
3026 	 *  Set the serial port FIFO pointer to the first sample in the FIFO.
3027 	 */
3028 	/* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
3029 
3030 	/*
3031 	 *  Write the serial port configuration to the part.  The master
3032 	 *  enable bit is not set until all other values have been written.
3033 	 */
3034 	snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
3035 	snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
3036 	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
3037 
3038 
3039 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3040 	snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
3041 	snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
3042 	snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
3043 	snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
3044 	snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
3045 #endif
3046 
3047 	mdelay(5);
3048 
3049 
3050 	/*
3051 	 * Wait for the codec ready signal from the AC97 codec.
3052 	 */
3053 	timeout = 150;
3054 	while (timeout-- > 0) {
3055 		/*
3056 		 *  Read the AC97 status register to see if we've seen a CODEC READY
3057 		 *  signal from the AC97 codec.
3058 		 */
3059 		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
3060 			goto ok1;
3061 		msleep(10);
3062 	}
3063 
3064 
3065 	dev_err(chip->card->dev,
3066 		"create - never read codec ready from AC'97\n");
3067 	dev_err(chip->card->dev,
3068 		"it is not probably bug, try to use CS4236 driver\n");
3069 	return -EIO;
3070  ok1:
3071 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3072 	{
3073 		int count;
3074 		for (count = 0; count < 150; count++) {
3075 			/* First, we want to wait for a short time. */
3076 			udelay(25);
3077 
3078 			if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
3079 				break;
3080 		}
3081 
3082 		/*
3083 		 *  Make sure CODEC is READY.
3084 		 */
3085 		if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
3086 			dev_dbg(chip->card->dev,
3087 				"never read card ready from secondary AC'97\n");
3088 	}
3089 #endif
3090 
3091 	/*
3092 	 *  Assert the vaid frame signal so that we can start sending commands
3093 	 *  to the AC97 codec.
3094 	 */
3095 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3096 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3097 	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3098 #endif
3099 
3100 
3101 	/*
3102 	 *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
3103 	 *  the codec is pumping ADC data across the AC-link.
3104 	 */
3105 	timeout = 150;
3106 	while (timeout-- > 0) {
3107 		/*
3108 		 *  Read the input slot valid register and see if input slots 3 and
3109 		 *  4 are valid yet.
3110 		 */
3111 		if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
3112 			goto ok2;
3113 		msleep(10);
3114 	}
3115 
3116 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3117 	dev_err(chip->card->dev,
3118 		"create - never read ISV3 & ISV4 from AC'97\n");
3119 	return -EIO;
3120 #else
3121 	/* This may happen on a cold boot with a Terratec SiXPack 5.1.
3122 	   Reloading the driver may help, if there's other soundcards
3123 	   with the same problem I would like to know. (Benny) */
3124 
3125 	dev_err(chip->card->dev, "never read ISV3 & ISV4 from AC'97\n");
3126 	dev_err(chip->card->dev,
3127 		"Try reloading the ALSA driver, if you find something\n");
3128 	dev_err(chip->card->dev,
3129 		"broken or not working on your soundcard upon\n");
3130 	dev_err(chip->card->dev,
3131 		"this message please report to alsa-devel@alsa-project.org\n");
3132 
3133 	return -EIO;
3134 #endif
3135  ok2:
3136 
3137 	/*
3138 	 *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
3139 	 *  commense the transfer of digital audio data to the AC97 codec.
3140 	 */
3141 
3142 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
3143 
3144 
3145 	/*
3146 	 *  Power down the DAC and ADC.  We will power them up (if) when we need
3147 	 *  them.
3148 	 */
3149 	/* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
3150 
3151 	/*
3152 	 *  Turn off the Processor by turning off the software clock enable flag in
3153 	 *  the clock control register.
3154 	 */
3155 	/* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
3156 	/* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
3157 
3158 	return 0;
3159 }
3160 
3161 /*
3162  *  start and load DSP
3163  */
3164 
cs46xx_enable_stream_irqs(struct snd_cs46xx * chip)3165 static void cs46xx_enable_stream_irqs(struct snd_cs46xx *chip)
3166 {
3167 	unsigned int tmp;
3168 
3169 	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
3170 
3171 	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
3172 	tmp &= ~0x0000f03f;
3173 	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt enable */
3174 
3175 	tmp = snd_cs46xx_peek(chip, BA1_CIE);
3176 	tmp &= ~0x0000003f;
3177 	tmp |=  0x00000001;
3178 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt enable */
3179 }
3180 
snd_cs46xx_start_dsp(struct snd_cs46xx * chip)3181 int snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
3182 {
3183 	unsigned int tmp;
3184 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3185 	int i;
3186 #endif
3187 	int err;
3188 
3189 	/*
3190 	 *  Reset the processor.
3191 	 */
3192 	snd_cs46xx_reset(chip);
3193 	/*
3194 	 *  Download the image to the processor.
3195 	 */
3196 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3197 	for (i = 0; i < CS46XX_DSP_MODULES; i++) {
3198 		err = load_firmware(chip, &chip->modules[i], module_names[i]);
3199 		if (err < 0) {
3200 			dev_err(chip->card->dev, "firmware load error [%s]\n",
3201 				   module_names[i]);
3202 			return err;
3203 		}
3204 		err = cs46xx_dsp_load_module(chip, chip->modules[i]);
3205 		if (err < 0) {
3206 			dev_err(chip->card->dev, "image download error [%s]\n",
3207 				   module_names[i]);
3208 			return err;
3209 		}
3210 	}
3211 
3212 	if (cs46xx_dsp_scb_and_task_init(chip) < 0)
3213 		return -EIO;
3214 #else
3215 	err = load_firmware(chip);
3216 	if (err < 0)
3217 		return err;
3218 
3219 	/* old image */
3220 	err = snd_cs46xx_download_image(chip);
3221 	if (err < 0) {
3222 		dev_err(chip->card->dev, "image download error\n");
3223 		return err;
3224 	}
3225 
3226 	/*
3227          *  Stop playback DMA.
3228 	 */
3229 	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
3230 	chip->play_ctl = tmp & 0xffff0000;
3231 	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
3232 #endif
3233 
3234 	/*
3235          *  Stop capture DMA.
3236 	 */
3237 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3238 	chip->capt.ctl = tmp & 0x0000ffff;
3239 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3240 
3241 	mdelay(5);
3242 
3243 	snd_cs46xx_set_play_sample_rate(chip, 8000);
3244 	snd_cs46xx_set_capture_sample_rate(chip, 8000);
3245 
3246 	snd_cs46xx_proc_start(chip);
3247 
3248 	cs46xx_enable_stream_irqs(chip);
3249 
3250 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3251 	/* set the attenuation to 0dB */
3252 	snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
3253 	snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
3254 #endif
3255 
3256 	return 0;
3257 }
3258 
3259 
3260 /*
3261  *	AMP control - null AMP
3262  */
3263 
amp_none(struct snd_cs46xx * chip,int change)3264 static void amp_none(struct snd_cs46xx *chip, int change)
3265 {
3266 }
3267 
3268 #ifdef CONFIG_SND_CS46XX_NEW_DSP
voyetra_setup_eapd_slot(struct snd_cs46xx * chip)3269 static int voyetra_setup_eapd_slot(struct snd_cs46xx *chip)
3270 {
3271 
3272 	u32 idx, valid_slots,tmp,powerdown = 0;
3273 	u16 modem_power,pin_config,logic_type;
3274 
3275 	dev_dbg(chip->card->dev, "cs46xx_setup_eapd_slot()+\n");
3276 
3277 	/*
3278 	 *  See if the devices are powered down.  If so, we must power them up first
3279 	 *  or they will not respond.
3280 	 */
3281 	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
3282 
3283 	if (!(tmp & CLKCR1_SWCE)) {
3284 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
3285 		powerdown = 1;
3286 	}
3287 
3288 	/*
3289 	 * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
3290 	 * stuff.
3291 	 */
3292 	if(chip->nr_ac97_codecs != 2) {
3293 		dev_err(chip->card->dev,
3294 			"cs46xx_setup_eapd_slot() - no secondary codec configured\n");
3295 		return -EINVAL;
3296 	}
3297 
3298 	modem_power = snd_cs46xx_codec_read (chip,
3299 					     AC97_EXTENDED_MSTATUS,
3300 					     CS46XX_SECONDARY_CODEC_INDEX);
3301 	modem_power &=0xFEFF;
3302 
3303 	snd_cs46xx_codec_write(chip,
3304 			       AC97_EXTENDED_MSTATUS, modem_power,
3305 			       CS46XX_SECONDARY_CODEC_INDEX);
3306 
3307 	/*
3308 	 * Set GPIO pin's 7 and 8 so that they are configured for output.
3309 	 */
3310 	pin_config = snd_cs46xx_codec_read (chip,
3311 					    AC97_GPIO_CFG,
3312 					    CS46XX_SECONDARY_CODEC_INDEX);
3313 	pin_config &=0x27F;
3314 
3315 	snd_cs46xx_codec_write(chip,
3316 			       AC97_GPIO_CFG, pin_config,
3317 			       CS46XX_SECONDARY_CODEC_INDEX);
3318 
3319 	/*
3320 	 * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
3321 	 */
3322 
3323 	logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
3324 					   CS46XX_SECONDARY_CODEC_INDEX);
3325 	logic_type &=0x27F;
3326 
3327 	snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
3328 				CS46XX_SECONDARY_CODEC_INDEX);
3329 
3330 	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
3331 	valid_slots |= 0x200;
3332 	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
3333 
3334 	if ( cs46xx_wait_for_fifo(chip,1) ) {
3335 		dev_dbg(chip->card->dev, "FIFO is busy\n");
3336 
3337 	  return -EINVAL;
3338 	}
3339 
3340 	/*
3341 	 * Fill slots 12 with the correct value for the GPIO pins.
3342 	 */
3343 	for(idx = 0x90; idx <= 0x9F; idx++) {
3344 		/*
3345 		 * Initialize the fifo so that bits 7 and 8 are on.
3346 		 *
3347 		 * Remember that the GPIO pins in bonzo are shifted by 4 bits to
3348 		 * the left.  0x1800 corresponds to bits 7 and 8.
3349 		 */
3350 		snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
3351 
3352 		/*
3353 		 * Wait for command to complete
3354 		 */
3355 		if ( cs46xx_wait_for_fifo(chip,200) ) {
3356 			dev_dbg(chip->card->dev,
3357 				"failed waiting for FIFO at addr (%02X)\n",
3358 				idx);
3359 
3360 			return -EINVAL;
3361 		}
3362 
3363 		/*
3364 		 * Write the serial port FIFO index.
3365 		 */
3366 		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
3367 
3368 		/*
3369 		 * Tell the serial port to load the new value into the FIFO location.
3370 		 */
3371 		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
3372 	}
3373 
3374 	/* wait for last command to complete */
3375 	cs46xx_wait_for_fifo(chip,200);
3376 
3377 	/*
3378 	 *  Now, if we powered up the devices, then power them back down again.
3379 	 *  This is kinda ugly, but should never happen.
3380 	 */
3381 	if (powerdown)
3382 		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
3383 
3384 	return 0;
3385 }
3386 #endif
3387 
3388 /*
3389  *	Crystal EAPD mode
3390  */
3391 
amp_voyetra(struct snd_cs46xx * chip,int change)3392 static void amp_voyetra(struct snd_cs46xx *chip, int change)
3393 {
3394 	/* Manage the EAPD bit on the Crystal 4297
3395 	   and the Analog AD1885 */
3396 
3397 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3398 	int old = chip->amplifier;
3399 #endif
3400 	int oval, val;
3401 
3402 	chip->amplifier += change;
3403 	oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
3404 				     CS46XX_PRIMARY_CODEC_INDEX);
3405 	val = oval;
3406 	if (chip->amplifier) {
3407 		/* Turn the EAPD amp on */
3408 		val |= 0x8000;
3409 	} else {
3410 		/* Turn the EAPD amp off */
3411 		val &= ~0x8000;
3412 	}
3413 	if (val != oval) {
3414 		snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
3415 				       CS46XX_PRIMARY_CODEC_INDEX);
3416 		if (chip->eapd_switch)
3417 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3418 				       &chip->eapd_switch->id);
3419 	}
3420 
3421 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3422 	if (chip->amplifier && !old) {
3423 		voyetra_setup_eapd_slot(chip);
3424 	}
3425 #endif
3426 }
3427 
hercules_init(struct snd_cs46xx * chip)3428 static void hercules_init(struct snd_cs46xx *chip)
3429 {
3430 	/* default: AMP off, and SPDIF input optical */
3431 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3432 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3433 }
3434 
3435 
3436 /*
3437  *	Game Theatre XP card - EGPIO[2] is used to enable the external amp.
3438  */
amp_hercules(struct snd_cs46xx * chip,int change)3439 static void amp_hercules(struct snd_cs46xx *chip, int change)
3440 {
3441 	int old = chip->amplifier;
3442 	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
3443 	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
3444 
3445 	chip->amplifier += change;
3446 	if (chip->amplifier && !old) {
3447 		dev_dbg(chip->card->dev, "Hercules amplifier ON\n");
3448 
3449 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
3450 				   EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
3451 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
3452 				   EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
3453 	} else if (old && !chip->amplifier) {
3454 		dev_dbg(chip->card->dev, "Hercules amplifier OFF\n");
3455 		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
3456 		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
3457 	}
3458 }
3459 
voyetra_mixer_init(struct snd_cs46xx * chip)3460 static void voyetra_mixer_init (struct snd_cs46xx *chip)
3461 {
3462 	dev_dbg(chip->card->dev, "initializing Voyetra mixer\n");
3463 
3464 	/* Enable SPDIF out */
3465 	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3466 	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3467 }
3468 
hercules_mixer_init(struct snd_cs46xx * chip)3469 static void hercules_mixer_init (struct snd_cs46xx *chip)
3470 {
3471 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3472 	unsigned int idx;
3473 	int err;
3474 	struct snd_card *card = chip->card;
3475 #endif
3476 
3477 	/* set EGPIO to default */
3478 	hercules_init(chip);
3479 
3480 	dev_dbg(chip->card->dev, "initializing Hercules mixer\n");
3481 
3482 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3483 	if (chip->in_suspend)
3484 		return;
3485 
3486 	for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
3487 		struct snd_kcontrol *kctl;
3488 
3489 		kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
3490 		err = snd_ctl_add(card, kctl);
3491 		if (err < 0) {
3492 			dev_err(card->dev,
3493 				"failed to initialize Hercules mixer (%d)\n",
3494 				err);
3495 			break;
3496 		}
3497 	}
3498 #endif
3499 }
3500 
3501 
3502 #if 0
3503 /*
3504  *	Untested
3505  */
3506 
3507 static void amp_voyetra_4294(struct snd_cs46xx *chip, int change)
3508 {
3509 	chip->amplifier += change;
3510 
3511 	if (chip->amplifier) {
3512 		/* Switch the GPIO pins 7 and 8 to open drain */
3513 		snd_cs46xx_codec_write(chip, 0x4C,
3514 				       snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
3515 		snd_cs46xx_codec_write(chip, 0x4E,
3516 				       snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
3517 		/* Now wake the AMP (this might be backwards) */
3518 		snd_cs46xx_codec_write(chip, 0x54,
3519 				       snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
3520 	} else {
3521 		snd_cs46xx_codec_write(chip, 0x54,
3522 				       snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
3523 	}
3524 }
3525 #endif
3526 
3527 
3528 /*
3529  *	Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
3530  *	whenever we need to beat on the chip.
3531  *
3532  *	The original idea and code for this hack comes from David Kaiser at
3533  *	Linuxcare. Perhaps one day Crystal will document their chips well
3534  *	enough to make them useful.
3535  */
3536 
clkrun_hack(struct snd_cs46xx * chip,int change)3537 static void clkrun_hack(struct snd_cs46xx *chip, int change)
3538 {
3539 	u16 control, nval;
3540 
3541 	if (!chip->acpi_port)
3542 		return;
3543 
3544 	chip->amplifier += change;
3545 
3546 	/* Read ACPI port */
3547 	nval = control = inw(chip->acpi_port + 0x10);
3548 
3549 	/* Flip CLKRUN off while running */
3550 	if (! chip->amplifier)
3551 		nval |= 0x2000;
3552 	else
3553 		nval &= ~0x2000;
3554 	if (nval != control)
3555 		outw(nval, chip->acpi_port + 0x10);
3556 }
3557 
3558 
3559 /*
3560  * detect intel piix4
3561  */
clkrun_init(struct snd_cs46xx * chip)3562 static void clkrun_init(struct snd_cs46xx *chip)
3563 {
3564 	struct pci_dev *pdev;
3565 	u8 pp;
3566 
3567 	chip->acpi_port = 0;
3568 
3569 	pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
3570 		PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3571 	if (pdev == NULL)
3572 		return;		/* Not a thinkpad thats for sure */
3573 
3574 	/* Find the control port */
3575 	pci_read_config_byte(pdev, 0x41, &pp);
3576 	chip->acpi_port = pp << 8;
3577 	pci_dev_put(pdev);
3578 }
3579 
3580 
3581 /*
3582  * Card subid table
3583  */
3584 
3585 struct cs_card_type
3586 {
3587 	u16 vendor;
3588 	u16 id;
3589 	char *name;
3590 	void (*init)(struct snd_cs46xx *);
3591 	void (*amp)(struct snd_cs46xx *, int);
3592 	void (*active)(struct snd_cs46xx *, int);
3593 	void (*mixer_init)(struct snd_cs46xx *);
3594 };
3595 
3596 static struct cs_card_type cards[] = {
3597 	{
3598 		.vendor = 0x1489,
3599 		.id = 0x7001,
3600 		.name = "Genius Soundmaker 128 value",
3601 		/* nothing special */
3602 	},
3603 	{
3604 		.vendor = 0x5053,
3605 		.id = 0x3357,
3606 		.name = "Voyetra",
3607 		.amp = amp_voyetra,
3608 		.mixer_init = voyetra_mixer_init,
3609 	},
3610 	{
3611 		.vendor = 0x1071,
3612 		.id = 0x6003,
3613 		.name = "Mitac MI6020/21",
3614 		.amp = amp_voyetra,
3615 	},
3616 	/* Hercules Game Theatre XP */
3617 	{
3618 		.vendor = 0x14af, /* Guillemot Corporation */
3619 		.id = 0x0050,
3620 		.name = "Hercules Game Theatre XP",
3621 		.amp = amp_hercules,
3622 		.mixer_init = hercules_mixer_init,
3623 	},
3624 	{
3625 		.vendor = 0x1681,
3626 		.id = 0x0050,
3627 		.name = "Hercules Game Theatre XP",
3628 		.amp = amp_hercules,
3629 		.mixer_init = hercules_mixer_init,
3630 	},
3631 	{
3632 		.vendor = 0x1681,
3633 		.id = 0x0051,
3634 		.name = "Hercules Game Theatre XP",
3635 		.amp = amp_hercules,
3636 		.mixer_init = hercules_mixer_init,
3637 
3638 	},
3639 	{
3640 		.vendor = 0x1681,
3641 		.id = 0x0052,
3642 		.name = "Hercules Game Theatre XP",
3643 		.amp = amp_hercules,
3644 		.mixer_init = hercules_mixer_init,
3645 	},
3646 	{
3647 		.vendor = 0x1681,
3648 		.id = 0x0053,
3649 		.name = "Hercules Game Theatre XP",
3650 		.amp = amp_hercules,
3651 		.mixer_init = hercules_mixer_init,
3652 	},
3653 	{
3654 		.vendor = 0x1681,
3655 		.id = 0x0054,
3656 		.name = "Hercules Game Theatre XP",
3657 		.amp = amp_hercules,
3658 		.mixer_init = hercules_mixer_init,
3659 	},
3660 	/* Herculess Fortissimo */
3661 	{
3662 		.vendor = 0x1681,
3663 		.id = 0xa010,
3664 		.name = "Hercules Gamesurround Fortissimo II",
3665 	},
3666 	{
3667 		.vendor = 0x1681,
3668 		.id = 0xa011,
3669 		.name = "Hercules Gamesurround Fortissimo III 7.1",
3670 	},
3671 	/* Teratec */
3672 	{
3673 		.vendor = 0x153b,
3674 		.id = 0x112e,
3675 		.name = "Terratec DMX XFire 1024",
3676 	},
3677 	{
3678 		.vendor = 0x153b,
3679 		.id = 0x1136,
3680 		.name = "Terratec SiXPack 5.1",
3681 	},
3682 	/* Not sure if the 570 needs the clkrun hack */
3683 	{
3684 		.vendor = PCI_VENDOR_ID_IBM,
3685 		.id = 0x0132,
3686 		.name = "Thinkpad 570",
3687 		.init = clkrun_init,
3688 		.active = clkrun_hack,
3689 	},
3690 	{
3691 		.vendor = PCI_VENDOR_ID_IBM,
3692 		.id = 0x0153,
3693 		.name = "Thinkpad 600X/A20/T20",
3694 		.init = clkrun_init,
3695 		.active = clkrun_hack,
3696 	},
3697 	{
3698 		.vendor = PCI_VENDOR_ID_IBM,
3699 		.id = 0x1010,
3700 		.name = "Thinkpad 600E (unsupported)",
3701 	},
3702 	{} /* terminator */
3703 };
3704 
3705 
3706 /*
3707  * APM support
3708  */
3709 #ifdef CONFIG_PM_SLEEP
3710 static const unsigned int saved_regs[] = {
3711 	BA0_ACOSV,
3712 	/*BA0_ASER_FADDR,*/
3713 	BA0_ASER_MASTER,
3714 	BA1_PVOL,
3715 	BA1_CVOL,
3716 };
3717 
snd_cs46xx_suspend(struct device * dev)3718 static int snd_cs46xx_suspend(struct device *dev)
3719 {
3720 	struct snd_card *card = dev_get_drvdata(dev);
3721 	struct snd_cs46xx *chip = card->private_data;
3722 	int i, amp_saved;
3723 
3724 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3725 	chip->in_suspend = 1;
3726 	// chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
3727 	// chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
3728 
3729 	snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3730 	snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3731 
3732 	/* save some registers */
3733 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3734 		chip->saved_regs[i] = snd_cs46xx_peekBA0(chip, saved_regs[i]);
3735 
3736 	amp_saved = chip->amplifier;
3737 	/* turn off amp */
3738 	chip->amplifier_ctrl(chip, -chip->amplifier);
3739 	snd_cs46xx_hw_stop(chip);
3740 	/* disable CLKRUN */
3741 	chip->active_ctrl(chip, -chip->amplifier);
3742 	chip->amplifier = amp_saved; /* restore the status */
3743 	return 0;
3744 }
3745 
snd_cs46xx_resume(struct device * dev)3746 static int snd_cs46xx_resume(struct device *dev)
3747 {
3748 	struct snd_card *card = dev_get_drvdata(dev);
3749 	struct snd_cs46xx *chip = card->private_data;
3750 	int amp_saved;
3751 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3752 	int i;
3753 #endif
3754 	unsigned int tmp;
3755 
3756 	amp_saved = chip->amplifier;
3757 	chip->amplifier = 0;
3758 	chip->active_ctrl(chip, 1); /* force to on */
3759 
3760 	snd_cs46xx_chip_init(chip);
3761 
3762 	snd_cs46xx_reset(chip);
3763 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3764 	cs46xx_dsp_resume(chip);
3765 	/* restore some registers */
3766 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3767 		snd_cs46xx_pokeBA0(chip, saved_regs[i], chip->saved_regs[i]);
3768 #else
3769 	snd_cs46xx_download_image(chip);
3770 #endif
3771 
3772 #if 0
3773 	snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE,
3774 			       chip->ac97_general_purpose);
3775 	snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL,
3776 			       chip->ac97_powerdown);
3777 	mdelay(10);
3778 	snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
3779 			       chip->ac97_powerdown);
3780 	mdelay(5);
3781 #endif
3782 
3783 	snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3784 	snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3785 
3786 	/*
3787          *  Stop capture DMA.
3788 	 */
3789 	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3790 	chip->capt.ctl = tmp & 0x0000ffff;
3791 	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3792 
3793 	mdelay(5);
3794 
3795 	/* reset playback/capture */
3796 	snd_cs46xx_set_play_sample_rate(chip, 8000);
3797 	snd_cs46xx_set_capture_sample_rate(chip, 8000);
3798 	snd_cs46xx_proc_start(chip);
3799 
3800 	cs46xx_enable_stream_irqs(chip);
3801 
3802 	if (amp_saved)
3803 		chip->amplifier_ctrl(chip, 1); /* turn amp on */
3804 	else
3805 		chip->active_ctrl(chip, -1); /* disable CLKRUN */
3806 	chip->amplifier = amp_saved;
3807 	chip->in_suspend = 0;
3808 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3809 	return 0;
3810 }
3811 
3812 SIMPLE_DEV_PM_OPS(snd_cs46xx_pm, snd_cs46xx_suspend, snd_cs46xx_resume);
3813 #endif /* CONFIG_PM_SLEEP */
3814 
3815 
3816 /*
3817  */
3818 
snd_cs46xx_create(struct snd_card * card,struct pci_dev * pci,int external_amp,int thinkpad)3819 int snd_cs46xx_create(struct snd_card *card,
3820 		      struct pci_dev *pci,
3821 		      int external_amp, int thinkpad)
3822 {
3823 	struct snd_cs46xx *chip = card->private_data;
3824 	int err, idx;
3825 	struct snd_cs46xx_region *region;
3826 	struct cs_card_type *cp;
3827 	u16 ss_card, ss_vendor;
3828 
3829 	/* enable PCI device */
3830 	err = pcim_enable_device(pci);
3831 	if (err < 0)
3832 		return err;
3833 
3834 	spin_lock_init(&chip->reg_lock);
3835 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3836 	mutex_init(&chip->spos_mutex);
3837 #endif
3838 	chip->card = card;
3839 	chip->pci = pci;
3840 	chip->irq = -1;
3841 
3842 	err = pci_request_regions(pci, "CS46xx");
3843 	if (err < 0)
3844 		return err;
3845 	chip->ba0_addr = pci_resource_start(pci, 0);
3846 	chip->ba1_addr = pci_resource_start(pci, 1);
3847 	if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
3848 	    chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
3849 		dev_err(chip->card->dev,
3850 			"wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n",
3851 			   chip->ba0_addr, chip->ba1_addr);
3852 	    	return -ENOMEM;
3853 	}
3854 
3855 	region = &chip->region.name.ba0;
3856 	strcpy(region->name, "CS46xx_BA0");
3857 	region->base = chip->ba0_addr;
3858 	region->size = CS46XX_BA0_SIZE;
3859 
3860 	region = &chip->region.name.data0;
3861 	strcpy(region->name, "CS46xx_BA1_data0");
3862 	region->base = chip->ba1_addr + BA1_SP_DMEM0;
3863 	region->size = CS46XX_BA1_DATA0_SIZE;
3864 
3865 	region = &chip->region.name.data1;
3866 	strcpy(region->name, "CS46xx_BA1_data1");
3867 	region->base = chip->ba1_addr + BA1_SP_DMEM1;
3868 	region->size = CS46XX_BA1_DATA1_SIZE;
3869 
3870 	region = &chip->region.name.pmem;
3871 	strcpy(region->name, "CS46xx_BA1_pmem");
3872 	region->base = chip->ba1_addr + BA1_SP_PMEM;
3873 	region->size = CS46XX_BA1_PRG_SIZE;
3874 
3875 	region = &chip->region.name.reg;
3876 	strcpy(region->name, "CS46xx_BA1_reg");
3877 	region->base = chip->ba1_addr + BA1_SP_REG;
3878 	region->size = CS46XX_BA1_REG_SIZE;
3879 
3880 	/* set up amp and clkrun hack */
3881 	pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
3882 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
3883 
3884 	for (cp = &cards[0]; cp->name; cp++) {
3885 		if (cp->vendor == ss_vendor && cp->id == ss_card) {
3886 			dev_dbg(chip->card->dev, "hack for %s enabled\n",
3887 				cp->name);
3888 
3889 			chip->amplifier_ctrl = cp->amp;
3890 			chip->active_ctrl = cp->active;
3891 			chip->mixer_init = cp->mixer_init;
3892 
3893 			if (cp->init)
3894 				cp->init(chip);
3895 			break;
3896 		}
3897 	}
3898 
3899 	if (external_amp) {
3900 		dev_info(chip->card->dev,
3901 			 "Crystal EAPD support forced on.\n");
3902 		chip->amplifier_ctrl = amp_voyetra;
3903 	}
3904 
3905 	if (thinkpad) {
3906 		dev_info(chip->card->dev,
3907 			 "Activating CLKRUN hack for Thinkpad.\n");
3908 		chip->active_ctrl = clkrun_hack;
3909 		clkrun_init(chip);
3910 	}
3911 
3912 	if (chip->amplifier_ctrl == NULL)
3913 		chip->amplifier_ctrl = amp_none;
3914 	if (chip->active_ctrl == NULL)
3915 		chip->active_ctrl = amp_none;
3916 
3917 	chip->active_ctrl(chip, 1); /* enable CLKRUN */
3918 
3919 	pci_set_master(pci);
3920 
3921 	for (idx = 0; idx < 5; idx++) {
3922 		region = &chip->region.idx[idx];
3923 		region->remap_addr = devm_ioremap(&pci->dev, region->base,
3924 						  region->size);
3925 		if (region->remap_addr == NULL) {
3926 			dev_err(chip->card->dev,
3927 				"%s ioremap problem\n", region->name);
3928 			return -ENOMEM;
3929 		}
3930 	}
3931 
3932 	if (devm_request_irq(&pci->dev, pci->irq, snd_cs46xx_interrupt,
3933 			     IRQF_SHARED, KBUILD_MODNAME, chip)) {
3934 		dev_err(chip->card->dev, "unable to grab IRQ %d\n", pci->irq);
3935 		return -EBUSY;
3936 	}
3937 	chip->irq = pci->irq;
3938 	card->sync_irq = chip->irq;
3939 	card->private_free = snd_cs46xx_free;
3940 
3941 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3942 	chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
3943 	if (!chip->dsp_spos_instance)
3944 		return -ENOMEM;
3945 #endif
3946 
3947 	err = snd_cs46xx_chip_init(chip);
3948 	if (err < 0)
3949 		return err;
3950 
3951 	snd_cs46xx_proc_init(card, chip);
3952 
3953 #ifdef CONFIG_PM_SLEEP
3954 	chip->saved_regs = devm_kmalloc_array(&pci->dev,
3955 					      ARRAY_SIZE(saved_regs),
3956 					      sizeof(*chip->saved_regs),
3957 					      GFP_KERNEL);
3958 	if (!chip->saved_regs)
3959 		return -ENOMEM;
3960 #endif
3961 
3962 	chip->active_ctrl(chip, -1); /* disable CLKRUN */
3963 	return 0;
3964 }
3965