xref: /linux/sound/isa/es18xx.c (revision de2fe5e07d58424bc286fff3fd3c1b0bf933cd58)
1 /*
2  *  Driver for generic ESS AudioDrive ES18xx soundcards
3  *  Copyright (c) by Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>
4  *  Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
5  *
6  *
7  *   This program is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU General Public License as published by
9  *   the Free Software Foundation; either version 2 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This program is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *   GNU General Public License for more details.
16  *
17  *   You should have received a copy of the GNU General Public License
18  *   along with this program; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  *
21  */
22 /* GENERAL NOTES:
23  *
24  * BUGS:
25  * - There are pops (we can't delay in trigger function, cause midlevel
26  *   often need to trigger down and then up very quickly).
27  *   Any ideas?
28  * - Support for 16 bit DMA seems to be broken. I've no hardware to tune it.
29  */
30 
31 /*
32  * ES1868  NOTES:
33  * - The chip has one half duplex pcm (with very limited full duplex support).
34  *
35  * - Duplex stereophonic sound is impossible.
36  * - Record and playback must share the same frequency rate.
37  *
38  * - The driver use dma2 for playback and dma1 for capture.
39  */
40 
41 /*
42  * ES1869 NOTES:
43  *
44  * - there are a first full duplex pcm and a second playback only pcm
45  *   (incompatible with first pcm capture)
46  *
47  * - there is support for the capture volume and ESS Spatializer 3D effect.
48  *
49  * - contrarily to some pages in DS_1869.PDF the rates can be set
50  *   independently.
51  *
52  * - Zoom Video is implemented by sharing the FM DAC, thus the user can
53  *   have either FM playback or Video playback but not both simultaneously.
54  *   The Video Playback Switch mixer control toggles this choice.
55  *
56  * BUGS:
57  *
58  * - There is a major trouble I noted:
59  *
60  *   using both channel for playback stereo 16 bit samples at 44100 Hz
61  *   the second pcm (Audio1) DMA slows down irregularly and sound is garbled.
62  *
63  *   The same happens using Audio1 for captureing.
64  *
65  *   The Windows driver does not suffer of this (although it use Audio1
66  *   only for captureing). I'm unable to discover why.
67  *
68  */
69 
70 /*
71  * ES1879 NOTES:
72  * - When Zoom Video is enabled (reg 0x71 bit 6 toggled on) the PCM playback
73  *   seems to be effected (speaker_test plays a lower frequency). Can't find
74  *   anything in the datasheet to account for this, so a Video Playback Switch
75  *   control has been included to allow ZV to be enabled only when necessary.
76  *   Then again on at least one test system the 0x71 bit 6 enable bit is not
77  *   needed for ZV, so maybe the datasheet is entirely wrong here.
78  */
79 
80 #include <sound/driver.h>
81 #include <linux/init.h>
82 #include <linux/err.h>
83 #include <linux/platform_device.h>
84 #include <linux/slab.h>
85 #include <linux/pnp.h>
86 #include <linux/isapnp.h>
87 #include <linux/moduleparam.h>
88 #include <asm/io.h>
89 #include <asm/dma.h>
90 #include <sound/core.h>
91 #include <sound/control.h>
92 #include <sound/pcm.h>
93 #include <sound/pcm_params.h>
94 #include <sound/mpu401.h>
95 #include <sound/opl3.h>
96 #define SNDRV_LEGACY_FIND_FREE_IRQ
97 #define SNDRV_LEGACY_FIND_FREE_DMA
98 #include <sound/initval.h>
99 
100 #define PFX "es18xx: "
101 
102 struct snd_es18xx {
103 	unsigned long port;		/* port of ESS chip */
104 	unsigned long mpu_port;		/* MPU-401 port of ESS chip */
105 	unsigned long fm_port;		/* FM port */
106 	unsigned long ctrl_port;	/* Control port of ESS chip */
107 	struct resource *res_port;
108 	struct resource *res_mpu_port;
109 	struct resource *res_ctrl_port;
110 	int irq;			/* IRQ number of ESS chip */
111 	int dma1;			/* DMA1 */
112 	int dma2;			/* DMA2 */
113 	unsigned short version;		/* version of ESS chip */
114 	int caps;			/* Chip capabilities */
115 	unsigned short audio2_vol;	/* volume level of audio2 */
116 
117 	unsigned short active;		/* active channel mask */
118 	unsigned int dma1_size;
119 	unsigned int dma2_size;
120 	unsigned int dma1_shift;
121 	unsigned int dma2_shift;
122 
123 	struct snd_card *card;
124 	struct snd_pcm *pcm;
125 	struct snd_pcm_substream *playback_a_substream;
126 	struct snd_pcm_substream *capture_a_substream;
127 	struct snd_pcm_substream *playback_b_substream;
128 
129 	struct snd_rawmidi *rmidi;
130 
131 	struct snd_kcontrol *hw_volume;
132 	struct snd_kcontrol *hw_switch;
133 	struct snd_kcontrol *master_volume;
134 	struct snd_kcontrol *master_switch;
135 
136 	spinlock_t reg_lock;
137 	spinlock_t mixer_lock;
138 	spinlock_t ctrl_lock;
139 #ifdef CONFIG_PM
140 	unsigned char pm_reg;
141 #endif
142 };
143 
144 struct snd_audiodrive {
145 	struct snd_es18xx *chip;
146 #ifdef CONFIG_PNP
147 	struct pnp_dev *dev;
148 	struct pnp_dev *devc;
149 #endif
150 };
151 
152 #define AUDIO1_IRQ	0x01
153 #define AUDIO2_IRQ	0x02
154 #define HWV_IRQ		0x04
155 #define MPU_IRQ		0x08
156 
157 #define ES18XX_PCM2	0x0001	/* Has two useable PCM */
158 #define ES18XX_SPATIALIZER 0x0002	/* Has 3D Spatializer */
159 #define ES18XX_RECMIX	0x0004	/* Has record mixer */
160 #define ES18XX_DUPLEX_MONO 0x0008	/* Has mono duplex only */
161 #define ES18XX_DUPLEX_SAME 0x0010	/* Playback and record must share the same rate */
162 #define ES18XX_NEW_RATE	0x0020	/* More precise rate setting */
163 #define ES18XX_AUXB	0x0040	/* AuxB mixer control */
164 #define ES18XX_HWV	0x0080	/* Has seperate hardware volume mixer controls*/
165 #define ES18XX_MONO	0x0100	/* Mono_in mixer control */
166 #define ES18XX_I2S	0x0200	/* I2S mixer control */
167 #define ES18XX_MUTEREC	0x0400	/* Record source can be muted */
168 #define ES18XX_CONTROL	0x0800	/* Has control ports */
169 
170 /* Power Management */
171 #define ES18XX_PM	0x07
172 #define ES18XX_PM_GPO0	0x01
173 #define ES18XX_PM_GPO1	0x02
174 #define ES18XX_PM_PDR	0x04
175 #define ES18XX_PM_ANA	0x08
176 #define ES18XX_PM_FM	0x020
177 #define ES18XX_PM_SUS	0x080
178 
179 /* Lowlevel */
180 
181 #define DAC1 0x01
182 #define ADC1 0x02
183 #define DAC2 0x04
184 #define MILLISECOND 10000
185 
186 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
187 {
188         int i;
189 
190         for(i = MILLISECOND; i; i--)
191                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
192                         outb(val, chip->port + 0x0C);
193                         return 0;
194                 }
195 	snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
196         return -EINVAL;
197 }
198 
199 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
200 {
201         int i;
202 
203         for(i = MILLISECOND/10; i; i--)
204                 if (inb(chip->port + 0x0C) & 0x40)
205                         return inb(chip->port + 0x0A);
206 	snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
207 		   chip->port + 0x0A, inb(chip->port + 0x0A));
208         return -ENODEV;
209 }
210 
211 #undef REG_DEBUG
212 
213 static int snd_es18xx_write(struct snd_es18xx *chip,
214 			    unsigned char reg, unsigned char data)
215 {
216 	unsigned long flags;
217 	int ret;
218 
219         spin_lock_irqsave(&chip->reg_lock, flags);
220 	ret = snd_es18xx_dsp_command(chip, reg);
221 	if (ret < 0)
222 		goto end;
223         ret = snd_es18xx_dsp_command(chip, data);
224  end:
225         spin_unlock_irqrestore(&chip->reg_lock, flags);
226 #ifdef REG_DEBUG
227 	snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
228 #endif
229 	return ret;
230 }
231 
232 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
233 {
234 	unsigned long flags;
235 	int ret, data;
236         spin_lock_irqsave(&chip->reg_lock, flags);
237 	ret = snd_es18xx_dsp_command(chip, 0xC0);
238 	if (ret < 0)
239 		goto end;
240         ret = snd_es18xx_dsp_command(chip, reg);
241 	if (ret < 0)
242 		goto end;
243 	data = snd_es18xx_dsp_get_byte(chip);
244 	ret = data;
245 #ifdef REG_DEBUG
246 	snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
247 #endif
248  end:
249         spin_unlock_irqrestore(&chip->reg_lock, flags);
250 	return ret;
251 }
252 
253 /* Return old value */
254 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
255 			   unsigned char mask, unsigned char val)
256 {
257         int ret;
258 	unsigned char old, new, oval;
259 	unsigned long flags;
260         spin_lock_irqsave(&chip->reg_lock, flags);
261         ret = snd_es18xx_dsp_command(chip, 0xC0);
262 	if (ret < 0)
263 		goto end;
264         ret = snd_es18xx_dsp_command(chip, reg);
265 	if (ret < 0)
266 		goto end;
267 	ret = snd_es18xx_dsp_get_byte(chip);
268 	if (ret < 0) {
269 		goto end;
270 	}
271 	old = ret;
272 	oval = old & mask;
273 	if (val != oval) {
274 		ret = snd_es18xx_dsp_command(chip, reg);
275 		if (ret < 0)
276 			goto end;
277 		new = (old & ~mask) | (val & mask);
278 		ret = snd_es18xx_dsp_command(chip, new);
279 		if (ret < 0)
280 			goto end;
281 #ifdef REG_DEBUG
282 		snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
283 			   reg, old, new, ret);
284 #endif
285 	}
286 	ret = oval;
287  end:
288         spin_unlock_irqrestore(&chip->reg_lock, flags);
289 	return ret;
290 }
291 
292 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
293 			    unsigned char reg, unsigned char data)
294 {
295 	unsigned long flags;
296         spin_lock_irqsave(&chip->mixer_lock, flags);
297         outb(reg, chip->port + 0x04);
298         outb(data, chip->port + 0x05);
299         spin_unlock_irqrestore(&chip->mixer_lock, flags);
300 #ifdef REG_DEBUG
301 	snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
302 #endif
303 }
304 
305 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
306 {
307 	unsigned long flags;
308 	int data;
309         spin_lock_irqsave(&chip->mixer_lock, flags);
310         outb(reg, chip->port + 0x04);
311 	data = inb(chip->port + 0x05);
312         spin_unlock_irqrestore(&chip->mixer_lock, flags);
313 #ifdef REG_DEBUG
314 	snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
315 #endif
316         return data;
317 }
318 
319 /* Return old value */
320 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
321 					unsigned char mask, unsigned char val)
322 {
323 	unsigned char old, new, oval;
324 	unsigned long flags;
325         spin_lock_irqsave(&chip->mixer_lock, flags);
326         outb(reg, chip->port + 0x04);
327 	old = inb(chip->port + 0x05);
328 	oval = old & mask;
329 	if (val != oval) {
330 		new = (old & ~mask) | (val & mask);
331 		outb(new, chip->port + 0x05);
332 #ifdef REG_DEBUG
333 		snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
334 			   reg, old, new);
335 #endif
336 	}
337         spin_unlock_irqrestore(&chip->mixer_lock, flags);
338 	return oval;
339 }
340 
341 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
342 					    unsigned char mask)
343 {
344 	int old, expected, new;
345 	unsigned long flags;
346         spin_lock_irqsave(&chip->mixer_lock, flags);
347         outb(reg, chip->port + 0x04);
348 	old = inb(chip->port + 0x05);
349 	expected = old ^ mask;
350 	outb(expected, chip->port + 0x05);
351 	new = inb(chip->port + 0x05);
352         spin_unlock_irqrestore(&chip->mixer_lock, flags);
353 #ifdef REG_DEBUG
354 	snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
355 		   reg, old, expected, new);
356 #endif
357 	return expected == new;
358 }
359 
360 
361 static int snd_es18xx_reset(struct snd_es18xx *chip)
362 {
363 	int i;
364         outb(0x03, chip->port + 0x06);
365         inb(chip->port + 0x06);
366         outb(0x00, chip->port + 0x06);
367         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
368         if (inb(chip->port + 0x0A) != 0xAA)
369                 return -1;
370 	return 0;
371 }
372 
373 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
374 {
375         outb(0x02, chip->port + 0x06);
376         inb(chip->port + 0x06);
377         outb(0x00, chip->port + 0x06);
378 	return 0;
379 }
380 
381 static struct snd_ratnum new_clocks[2] = {
382 	{
383 		.num = 793800,
384 		.den_min = 1,
385 		.den_max = 128,
386 		.den_step = 1,
387 	},
388 	{
389 		.num = 768000,
390 		.den_min = 1,
391 		.den_max = 128,
392 		.den_step = 1,
393 	}
394 };
395 
396 static struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
397 	.nrats = 2,
398 	.rats = new_clocks,
399 };
400 
401 static struct snd_ratnum old_clocks[2] = {
402 	{
403 		.num = 795444,
404 		.den_min = 1,
405 		.den_max = 128,
406 		.den_step = 1,
407 	},
408 	{
409 		.num = 397722,
410 		.den_min = 1,
411 		.den_max = 128,
412 		.den_step = 1,
413 	}
414 };
415 
416 static struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
417 	.nrats = 2,
418 	.rats = old_clocks,
419 };
420 
421 
422 static void snd_es18xx_rate_set(struct snd_es18xx *chip,
423 				struct snd_pcm_substream *substream,
424 				int mode)
425 {
426 	unsigned int bits, div0;
427 	struct snd_pcm_runtime *runtime = substream->runtime;
428 	if (chip->caps & ES18XX_NEW_RATE) {
429 		if (runtime->rate_num == new_clocks[0].num)
430 			bits = 128 - runtime->rate_den;
431 		else
432 			bits = 256 - runtime->rate_den;
433 	} else {
434 		if (runtime->rate_num == old_clocks[0].num)
435 			bits = 256 - runtime->rate_den;
436 		else
437 			bits = 128 - runtime->rate_den;
438 	}
439 
440 	/* set filter register */
441 	div0 = 256 - 7160000*20/(8*82*runtime->rate);
442 
443 	if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
444 		snd_es18xx_mixer_write(chip, 0x70, bits);
445 		/*
446 		 * Comment from kernel oss driver:
447 		 * FKS: fascinating: 0x72 doesn't seem to work.
448 		 */
449 		snd_es18xx_write(chip, 0xA2, div0);
450 		snd_es18xx_mixer_write(chip, 0x72, div0);
451 	} else {
452 		snd_es18xx_write(chip, 0xA1, bits);
453 		snd_es18xx_write(chip, 0xA2, div0);
454 	}
455 }
456 
457 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
458 					 struct snd_pcm_hw_params *hw_params)
459 {
460 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
461 	int shift, err;
462 
463 	shift = 0;
464 	if (params_channels(hw_params) == 2)
465 		shift++;
466 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
467 		shift++;
468 
469 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
470 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
471 		    (chip->capture_a_substream) &&
472 		    params_channels(hw_params) != 1) {
473 			_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
474 			return -EBUSY;
475 		}
476 		chip->dma2_shift = shift;
477 	} else {
478 		chip->dma1_shift = shift;
479 	}
480 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
481 		return err;
482 	return 0;
483 }
484 
485 static int snd_es18xx_pcm_hw_free(struct snd_pcm_substream *substream)
486 {
487 	return snd_pcm_lib_free_pages(substream);
488 }
489 
490 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
491 					struct snd_pcm_substream *substream)
492 {
493 	struct snd_pcm_runtime *runtime = substream->runtime;
494 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
495 	unsigned int count = snd_pcm_lib_period_bytes(substream);
496 
497 	chip->dma2_size = size;
498 
499         snd_es18xx_rate_set(chip, substream, DAC2);
500 
501         /* Transfer Count Reload */
502         count = 0x10000 - count;
503         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
504         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
505 
506 	/* Set format */
507         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
508 			      ((runtime->channels == 1) ? 0x00 : 0x02) |
509 			      (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
510 			      (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
511 
512         /* Set DMA controller */
513         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
514 
515 	return 0;
516 }
517 
518 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
519 					struct snd_pcm_substream *substream,
520 					int cmd)
521 {
522 	switch (cmd) {
523 	case SNDRV_PCM_TRIGGER_START:
524 	case SNDRV_PCM_TRIGGER_RESUME:
525 		if (chip->active & DAC2)
526 			return 0;
527 		chip->active |= DAC2;
528                 /* Start DMA */
529 		if (chip->dma2 >= 4)
530 			snd_es18xx_mixer_write(chip, 0x78, 0xb3);
531 		else
532 			snd_es18xx_mixer_write(chip, 0x78, 0x93);
533 #ifdef AVOID_POPS
534 		/* Avoid pops */
535                 udelay(100000);
536 		if (chip->caps & ES18XX_PCM2)
537 			/* Restore Audio 2 volume */
538 			snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
539 		else
540 			/* Enable PCM output */
541 			snd_es18xx_dsp_command(chip, 0xD1);
542 #endif
543 		break;
544 	case SNDRV_PCM_TRIGGER_STOP:
545 	case SNDRV_PCM_TRIGGER_SUSPEND:
546 		if (!(chip->active & DAC2))
547 			return 0;
548 		chip->active &= ~DAC2;
549                 /* Stop DMA */
550                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
551 #ifdef AVOID_POPS
552                 udelay(25000);
553 		if (chip->caps & ES18XX_PCM2)
554 			/* Set Audio 2 volume to 0 */
555 			snd_es18xx_mixer_write(chip, 0x7C, 0);
556 		else
557 			/* Disable PCM output */
558 			snd_es18xx_dsp_command(chip, 0xD3);
559 #endif
560 		break;
561 	default:
562 		return -EINVAL;
563 	}
564 
565 	return 0;
566 }
567 
568 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
569 					struct snd_pcm_hw_params *hw_params)
570 {
571 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
572 	int shift, err;
573 
574 	shift = 0;
575 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
576 	    chip->playback_a_substream &&
577 	    params_channels(hw_params) != 1) {
578 		_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
579 		return -EBUSY;
580 	}
581 	if (params_channels(hw_params) == 2)
582 		shift++;
583 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
584 		shift++;
585 	chip->dma1_shift = shift;
586 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
587 		return err;
588 	return 0;
589 }
590 
591 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
592 {
593         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
594 	struct snd_pcm_runtime *runtime = substream->runtime;
595 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
596 	unsigned int count = snd_pcm_lib_period_bytes(substream);
597 
598 	chip->dma1_size = size;
599 
600 	snd_es18xx_reset_fifo(chip);
601 
602         /* Set stereo/mono */
603         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
604 
605         snd_es18xx_rate_set(chip, substream, ADC1);
606 
607         /* Transfer Count Reload */
608 	count = 0x10000 - count;
609 	snd_es18xx_write(chip, 0xA4, count & 0xff);
610 	snd_es18xx_write(chip, 0xA5, count >> 8);
611 
612 #ifdef AVOID_POPS
613 	udelay(100000);
614 #endif
615 
616         /* Set format */
617         snd_es18xx_write(chip, 0xB7,
618                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
619         snd_es18xx_write(chip, 0xB7, 0x90 |
620                          ((runtime->channels == 1) ? 0x40 : 0x08) |
621                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
622                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
623 
624         /* Set DMA controler */
625         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
626 
627 	return 0;
628 }
629 
630 static int snd_es18xx_capture_trigger(struct snd_pcm_substream *substream,
631 				      int cmd)
632 {
633         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
634 
635 	switch (cmd) {
636 	case SNDRV_PCM_TRIGGER_START:
637 	case SNDRV_PCM_TRIGGER_RESUME:
638 		if (chip->active & ADC1)
639 			return 0;
640 		chip->active |= ADC1;
641                 /* Start DMA */
642                 snd_es18xx_write(chip, 0xB8, 0x0f);
643 		break;
644 	case SNDRV_PCM_TRIGGER_STOP:
645 	case SNDRV_PCM_TRIGGER_SUSPEND:
646 		if (!(chip->active & ADC1))
647 			return 0;
648 		chip->active &= ~ADC1;
649                 /* Stop DMA */
650                 snd_es18xx_write(chip, 0xB8, 0x00);
651 		break;
652 	default:
653 		return -EINVAL;
654 	}
655 
656 	return 0;
657 }
658 
659 static int snd_es18xx_playback2_prepare(struct snd_es18xx *chip,
660 					struct snd_pcm_substream *substream)
661 {
662 	struct snd_pcm_runtime *runtime = substream->runtime;
663 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
664 	unsigned int count = snd_pcm_lib_period_bytes(substream);
665 
666 	chip->dma1_size = size;
667 
668 	snd_es18xx_reset_fifo(chip);
669 
670         /* Set stereo/mono */
671         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
672 
673         snd_es18xx_rate_set(chip, substream, DAC1);
674 
675         /* Transfer Count Reload */
676 	count = 0x10000 - count;
677 	snd_es18xx_write(chip, 0xA4, count & 0xff);
678 	snd_es18xx_write(chip, 0xA5, count >> 8);
679 
680         /* Set format */
681         snd_es18xx_write(chip, 0xB6,
682                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
683         snd_es18xx_write(chip, 0xB7,
684                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
685         snd_es18xx_write(chip, 0xB7, 0x90 |
686                          (runtime->channels == 1 ? 0x40 : 0x08) |
687                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
688                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
689 
690         /* Set DMA controler */
691         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
692 
693 	return 0;
694 }
695 
696 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
697 					struct snd_pcm_substream *substream,
698 					int cmd)
699 {
700 	switch (cmd) {
701 	case SNDRV_PCM_TRIGGER_START:
702 	case SNDRV_PCM_TRIGGER_RESUME:
703 		if (chip->active & DAC1)
704 			return 0;
705 		chip->active |= DAC1;
706                 /* Start DMA */
707                 snd_es18xx_write(chip, 0xB8, 0x05);
708 #ifdef AVOID_POPS
709 		/* Avoid pops */
710                 udelay(100000);
711                 /* Enable Audio 1 */
712                 snd_es18xx_dsp_command(chip, 0xD1);
713 #endif
714 		break;
715 	case SNDRV_PCM_TRIGGER_STOP:
716 	case SNDRV_PCM_TRIGGER_SUSPEND:
717 		if (!(chip->active & DAC1))
718 			return 0;
719 		chip->active &= ~DAC1;
720                 /* Stop DMA */
721                 snd_es18xx_write(chip, 0xB8, 0x00);
722 #ifdef AVOID_POPS
723 		/* Avoid pops */
724                 udelay(25000);
725                 /* Disable Audio 1 */
726                 snd_es18xx_dsp_command(chip, 0xD3);
727 #endif
728 		break;
729 	default:
730 		return -EINVAL;
731 	}
732 
733 	return 0;
734 }
735 
736 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
737 {
738         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
739 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
740 		return snd_es18xx_playback1_prepare(chip, substream);
741 	else
742 		return snd_es18xx_playback2_prepare(chip, substream);
743 }
744 
745 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
746 				       int cmd)
747 {
748         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
749 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
750 		return snd_es18xx_playback1_trigger(chip, substream, cmd);
751 	else
752 		return snd_es18xx_playback2_trigger(chip, substream, cmd);
753 }
754 
755 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
756 {
757 	struct snd_es18xx *chip = dev_id;
758 	unsigned char status;
759 
760 	if (chip->caps & ES18XX_CONTROL) {
761 		/* Read Interrupt status */
762 		status = inb(chip->ctrl_port + 6);
763 	} else {
764 		/* Read Interrupt status */
765 		status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
766 	}
767 #if 0
768 	else {
769 		status = 0;
770 		if (inb(chip->port + 0x0C) & 0x01)
771 			status |= AUDIO1_IRQ;
772 		if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
773 			status |= AUDIO2_IRQ;
774 		if ((chip->caps & ES18XX_HWV) &&
775 		    snd_es18xx_mixer_read(chip, 0x64) & 0x10)
776 			status |= HWV_IRQ;
777 	}
778 #endif
779 
780 	/* Audio 1 & Audio 2 */
781         if (status & AUDIO2_IRQ) {
782                 if (chip->active & DAC2)
783                 	snd_pcm_period_elapsed(chip->playback_a_substream);
784 		/* ack interrupt */
785                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
786         }
787         if (status & AUDIO1_IRQ) {
788                 /* ok.. capture is active */
789                 if (chip->active & ADC1)
790                 	snd_pcm_period_elapsed(chip->capture_a_substream);
791                 /* ok.. playback2 is active */
792                 else if (chip->active & DAC1)
793                 	snd_pcm_period_elapsed(chip->playback_b_substream);
794 		/* ack interrupt */
795 		inb(chip->port + 0x0E);
796         }
797 
798 	/* MPU */
799 	if ((status & MPU_IRQ) && chip->rmidi)
800 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
801 
802 	/* Hardware volume */
803 	if (status & HWV_IRQ) {
804 		int split = 0;
805 		if (chip->caps & ES18XX_HWV) {
806 			split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
807 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
808 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
809 		}
810 		if (!split) {
811 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_switch->id);
812 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_volume->id);
813 		}
814 		/* ack interrupt */
815 		snd_es18xx_mixer_write(chip, 0x66, 0x00);
816 	}
817 	return IRQ_HANDLED;
818 }
819 
820 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
821 {
822         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
823 	int pos;
824 
825 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
826 		if (!(chip->active & DAC2))
827 			return 0;
828 		pos = snd_dma_pointer(chip->dma2, chip->dma2_size);
829 		return pos >> chip->dma2_shift;
830 	} else {
831 		if (!(chip->active & DAC1))
832 			return 0;
833 		pos = snd_dma_pointer(chip->dma1, chip->dma1_size);
834 		return pos >> chip->dma1_shift;
835 	}
836 }
837 
838 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
839 {
840         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
841 	int pos;
842 
843         if (!(chip->active & ADC1))
844                 return 0;
845 	pos = snd_dma_pointer(chip->dma1, chip->dma1_size);
846 	return pos >> chip->dma1_shift;
847 }
848 
849 static struct snd_pcm_hardware snd_es18xx_playback =
850 {
851 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
852 				 SNDRV_PCM_INFO_RESUME |
853 				 SNDRV_PCM_INFO_MMAP_VALID),
854 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
855 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
856 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
857 	.rate_min =		4000,
858 	.rate_max =		48000,
859 	.channels_min =		1,
860 	.channels_max =		2,
861 	.buffer_bytes_max =	65536,
862 	.period_bytes_min =	64,
863 	.period_bytes_max =	65536,
864 	.periods_min =		1,
865 	.periods_max =		1024,
866 	.fifo_size =		0,
867 };
868 
869 static struct snd_pcm_hardware snd_es18xx_capture =
870 {
871 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
872 				 SNDRV_PCM_INFO_RESUME |
873 				 SNDRV_PCM_INFO_MMAP_VALID),
874 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
875 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
876 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
877 	.rate_min =		4000,
878 	.rate_max =		48000,
879 	.channels_min =		1,
880 	.channels_max =		2,
881 	.buffer_bytes_max =	65536,
882 	.period_bytes_min =	64,
883 	.period_bytes_max =	65536,
884 	.periods_min =		1,
885 	.periods_max =		1024,
886 	.fifo_size =		0,
887 };
888 
889 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
890 {
891 	struct snd_pcm_runtime *runtime = substream->runtime;
892         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
893 
894 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
895 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
896 		    chip->capture_a_substream &&
897 		    chip->capture_a_substream->runtime->channels != 1)
898 			return -EAGAIN;
899 		chip->playback_a_substream = substream;
900 	} else if (substream->number <= 1) {
901 		if (chip->capture_a_substream)
902 			return -EAGAIN;
903 		chip->playback_b_substream = substream;
904 	} else {
905 		snd_BUG();
906 		return -EINVAL;
907 	}
908 	substream->runtime->hw = snd_es18xx_playback;
909 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
910 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
911         return 0;
912 }
913 
914 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
915 {
916 	struct snd_pcm_runtime *runtime = substream->runtime;
917         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
918 
919         if (chip->playback_b_substream)
920                 return -EAGAIN;
921 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
922 	    chip->playback_a_substream &&
923 	    chip->playback_a_substream->runtime->channels != 1)
924 		return -EAGAIN;
925         chip->capture_a_substream = substream;
926 	substream->runtime->hw = snd_es18xx_capture;
927 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
928 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
929         return 0;
930 }
931 
932 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
933 {
934         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
935 
936 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
937 		chip->playback_a_substream = NULL;
938 	else
939 		chip->playback_b_substream = NULL;
940 
941 	snd_pcm_lib_free_pages(substream);
942 	return 0;
943 }
944 
945 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
946 {
947         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
948 
949         chip->capture_a_substream = NULL;
950 	snd_pcm_lib_free_pages(substream);
951         return 0;
952 }
953 
954 /*
955  *  MIXER part
956  */
957 
958 /* Record source mux routines:
959  * Depending on the chipset this mux switches between 4, 5, or 8 possible inputs.
960  * bit table for the 4/5 source mux:
961  * reg 1C:
962  *  b2 b1 b0   muxSource
963  *   x  0  x   microphone
964  *   0  1  x   CD
965  *   1  1  0   line
966  *   1  1  1   mixer
967  * if it's "mixer" and it's a 5 source mux chipset then reg 7A bit 3 determines
968  * either the play mixer or the capture mixer.
969  *
970  * "map4Source" translates from source number to reg bit pattern
971  * "invMap4Source" translates from reg bit pattern to source number
972  */
973 
974 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
975 {
976 	static char *texts4Source[4] = {
977 		"Mic", "CD", "Line", "Master"
978 	};
979 	static char *texts5Source[5] = {
980 		"Mic", "CD", "Line", "Master", "Mix"
981 	};
982 	static char *texts8Source[8] = {
983 		"Mic", "Mic Master", "CD", "AOUT",
984 		"Mic1", "Mix", "Line", "Master"
985 	};
986 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
987 
988 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
989 	uinfo->count = 1;
990 	switch (chip->version) {
991 	case 0x1868:
992 	case 0x1878:
993 		uinfo->value.enumerated.items = 4;
994 		if (uinfo->value.enumerated.item > 3)
995 			uinfo->value.enumerated.item = 3;
996 		strcpy(uinfo->value.enumerated.name, texts4Source[uinfo->value.enumerated.item]);
997 		break;
998 	case 0x1887:
999 	case 0x1888:
1000 		uinfo->value.enumerated.items = 5;
1001 		if (uinfo->value.enumerated.item > 4)
1002 			uinfo->value.enumerated.item = 4;
1003 		strcpy(uinfo->value.enumerated.name, texts5Source[uinfo->value.enumerated.item]);
1004 		break;
1005 	case 0x1869: /* DS somewhat contradictory for 1869: could be be 5 or 8 */
1006 	case 0x1879:
1007 		uinfo->value.enumerated.items = 8;
1008 		if (uinfo->value.enumerated.item > 7)
1009 			uinfo->value.enumerated.item = 7;
1010 		strcpy(uinfo->value.enumerated.name, texts8Source[uinfo->value.enumerated.item]);
1011 		break;
1012 	default:
1013 		return -EINVAL;
1014 	}
1015 	return 0;
1016 }
1017 
1018 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1019 {
1020 	static unsigned char invMap4Source[8] = {0, 0, 1, 1, 0, 0, 2, 3};
1021 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1022 	int muxSource = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
1023 	if (!(chip->version == 0x1869 || chip->version == 0x1879)) {
1024 		muxSource = invMap4Source[muxSource];
1025 		if (muxSource==3 &&
1026 		    (chip->version == 0x1887 || chip->version == 0x1888) &&
1027 		    (snd_es18xx_mixer_read(chip, 0x7a) & 0x08)
1028 		)
1029 			muxSource = 4;
1030 	}
1031 	ucontrol->value.enumerated.item[0] = muxSource;
1032 	return 0;
1033 }
1034 
1035 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1036 {
1037 	static unsigned char map4Source[4] = {0, 2, 6, 7};
1038 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1039 	unsigned char val = ucontrol->value.enumerated.item[0];
1040 	unsigned char retVal = 0;
1041 
1042 	switch (chip->version) {
1043  /* 5 source chips */
1044 	case 0x1887:
1045 	case 0x1888:
1046 		if (val > 4)
1047 			return -EINVAL;
1048 		if (val == 4) {
1049 			retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x08) != 0x08;
1050 			val = 3;
1051 		} else
1052 			retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x00) != 0x00;
1053  /* 4 source chips */
1054 	case 0x1868:
1055 	case 0x1878:
1056 		if (val > 3)
1057 			return -EINVAL;
1058 		val = map4Source[val];
1059 		break;
1060  /* 8 source chips */
1061 	case 0x1869:
1062 	case 0x1879:
1063 		if (val > 7)
1064 			return -EINVAL;
1065 		break;
1066 	default:
1067 		return -EINVAL;
1068 	}
1069 	return (snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val) || retVal;
1070 }
1071 
1072 static int snd_es18xx_info_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1073 {
1074 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1075 	uinfo->count = 1;
1076 	uinfo->value.integer.min = 0;
1077 	uinfo->value.integer.max = 1;
1078 	return 0;
1079 }
1080 
1081 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1082 {
1083 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1084 	unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
1085 	ucontrol->value.integer.value[0] = !!(val & 8);
1086 	return 0;
1087 }
1088 
1089 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1090 {
1091 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1092 	unsigned char oval, nval;
1093 	int change;
1094 	nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1095 	oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
1096 	change = nval != oval;
1097 	if (change) {
1098 		snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1099 		snd_es18xx_mixer_write(chip, 0x50, nval);
1100 	}
1101 	return change;
1102 }
1103 
1104 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1105 {
1106 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1107 	uinfo->count = 2;
1108 	uinfo->value.integer.min = 0;
1109 	uinfo->value.integer.max = 63;
1110 	return 0;
1111 }
1112 
1113 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1114 {
1115 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1116 	ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1117 	ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1118 	return 0;
1119 }
1120 
1121 static int snd_es18xx_info_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1122 {
1123 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1124 	uinfo->count = 2;
1125 	uinfo->value.integer.min = 0;
1126 	uinfo->value.integer.max = 1;
1127 	return 0;
1128 }
1129 
1130 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1131 {
1132 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1133 	ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1134 	ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1135 	return 0;
1136 }
1137 
1138 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1139 {
1140 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1141 	chip->master_volume = NULL;
1142 	chip->master_switch = NULL;
1143 	chip->hw_volume = NULL;
1144 	chip->hw_switch = NULL;
1145 }
1146 
1147 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1148 			       unsigned char mask, unsigned char val)
1149 {
1150 	if (reg < 0xa0)
1151 		return snd_es18xx_mixer_bits(chip, reg, mask, val);
1152 	else
1153 		return snd_es18xx_bits(chip, reg, mask, val);
1154 }
1155 
1156 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1157 {
1158 	if (reg < 0xa0)
1159 		return snd_es18xx_mixer_read(chip, reg);
1160 	else
1161 		return snd_es18xx_read(chip, reg);
1162 }
1163 
1164 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, invert) \
1165 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1166   .info = snd_es18xx_info_single, \
1167   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1168   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1169 
1170 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1171 {
1172 	int mask = (kcontrol->private_value >> 16) & 0xff;
1173 
1174 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1175 	uinfo->count = 1;
1176 	uinfo->value.integer.min = 0;
1177 	uinfo->value.integer.max = mask;
1178 	return 0;
1179 }
1180 
1181 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1182 {
1183 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1184 	int reg = kcontrol->private_value & 0xff;
1185 	int shift = (kcontrol->private_value >> 8) & 0xff;
1186 	int mask = (kcontrol->private_value >> 16) & 0xff;
1187 	int invert = (kcontrol->private_value >> 24) & 0xff;
1188 	int val;
1189 
1190 	val = snd_es18xx_reg_read(chip, reg);
1191 	ucontrol->value.integer.value[0] = (val >> shift) & mask;
1192 	if (invert)
1193 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1194 	return 0;
1195 }
1196 
1197 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1198 {
1199 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1200 	int reg = kcontrol->private_value & 0xff;
1201 	int shift = (kcontrol->private_value >> 8) & 0xff;
1202 	int mask = (kcontrol->private_value >> 16) & 0xff;
1203 	int invert = (kcontrol->private_value >> 24) & 0xff;
1204 	unsigned char val;
1205 
1206 	val = (ucontrol->value.integer.value[0] & mask);
1207 	if (invert)
1208 		val = mask - val;
1209 	mask <<= shift;
1210 	val <<= shift;
1211 	return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1212 }
1213 
1214 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1215 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1216   .info = snd_es18xx_info_double, \
1217   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1218   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1219 
1220 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1221 {
1222 	int mask = (kcontrol->private_value >> 24) & 0xff;
1223 
1224 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1225 	uinfo->count = 2;
1226 	uinfo->value.integer.min = 0;
1227 	uinfo->value.integer.max = mask;
1228 	return 0;
1229 }
1230 
1231 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1232 {
1233 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1234 	int left_reg = kcontrol->private_value & 0xff;
1235 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1236 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1237 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1238 	int mask = (kcontrol->private_value >> 24) & 0xff;
1239 	int invert = (kcontrol->private_value >> 22) & 1;
1240 	unsigned char left, right;
1241 
1242 	left = snd_es18xx_reg_read(chip, left_reg);
1243 	if (left_reg != right_reg)
1244 		right = snd_es18xx_reg_read(chip, right_reg);
1245 	else
1246 		right = left;
1247 	ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1248 	ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1249 	if (invert) {
1250 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1251 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1252 	}
1253 	return 0;
1254 }
1255 
1256 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1257 {
1258 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1259 	int left_reg = kcontrol->private_value & 0xff;
1260 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1261 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1262 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1263 	int mask = (kcontrol->private_value >> 24) & 0xff;
1264 	int invert = (kcontrol->private_value >> 22) & 1;
1265 	int change;
1266 	unsigned char val1, val2, mask1, mask2;
1267 
1268 	val1 = ucontrol->value.integer.value[0] & mask;
1269 	val2 = ucontrol->value.integer.value[1] & mask;
1270 	if (invert) {
1271 		val1 = mask - val1;
1272 		val2 = mask - val2;
1273 	}
1274 	val1 <<= shift_left;
1275 	val2 <<= shift_right;
1276 	mask1 = mask << shift_left;
1277 	mask2 = mask << shift_right;
1278 	if (left_reg != right_reg) {
1279 		change = 0;
1280 		if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1281 			change = 1;
1282 		if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1283 			change = 1;
1284 	} else {
1285 		change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2,
1286 					      val1 | val2) != (val1 | val2));
1287 	}
1288 	return change;
1289 }
1290 
1291 /* Mixer controls
1292  * These arrays contain setup data for mixer controls.
1293  *
1294  * The controls that are universal to all chipsets are fully initialized
1295  * here.
1296  */
1297 static struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1298 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1299 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1300 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1301 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1302 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1303 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1304 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1305 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1306 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1307 {
1308 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1309 	.name = "Capture Source",
1310 	.info = snd_es18xx_info_mux,
1311 	.get = snd_es18xx_get_mux,
1312 	.put = snd_es18xx_put_mux,
1313 }
1314 };
1315 
1316 static struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1317 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1318 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1319 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1320 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1321 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1322 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1323 };
1324 
1325 /*
1326  * The chipset specific mixer controls
1327  */
1328 static struct snd_kcontrol_new snd_es18xx_opt_speaker =
1329 	ES18XX_SINGLE("PC Speaker Playback Volume", 0, 0x3c, 0, 7, 0);
1330 
1331 static struct snd_kcontrol_new snd_es18xx_opt_1869[] = {
1332 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1333 ES18XX_SINGLE("Video Playback Switch", 0, 0x7f, 0, 1, 0),
1334 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1335 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1336 };
1337 
1338 static struct snd_kcontrol_new snd_es18xx_opt_1878 =
1339 	ES18XX_DOUBLE("Video Playback Volume", 0, 0x68, 0x68, 4, 0, 15, 0);
1340 
1341 static struct snd_kcontrol_new snd_es18xx_opt_1879[] = {
1342 ES18XX_SINGLE("Video Playback Switch", 0, 0x71, 6, 1, 0),
1343 ES18XX_DOUBLE("Video Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1344 ES18XX_DOUBLE("Video Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1345 };
1346 
1347 static struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1348 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1349 };
1350 
1351 static struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1352 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1353 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1354 };
1355 
1356 static struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1357 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1358 {
1359 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1360 	.name = "3D Control - Switch",
1361 	.info = snd_es18xx_info_spatializer_enable,
1362 	.get = snd_es18xx_get_spatializer_enable,
1363 	.put = snd_es18xx_put_spatializer_enable,
1364 }
1365 };
1366 
1367 static struct snd_kcontrol_new snd_es18xx_micpre1_control =
1368 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1369 
1370 static struct snd_kcontrol_new snd_es18xx_micpre2_control =
1371 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1372 
1373 static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1374 {
1375 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1376 	.name = "Hardware Master Playback Volume",
1377 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1378 	.info = snd_es18xx_info_hw_volume,
1379 	.get = snd_es18xx_get_hw_volume,
1380 },
1381 {
1382 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1383 	.name = "Hardware Master Playback Switch",
1384 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1385 	.info = snd_es18xx_info_hw_switch,
1386 	.get = snd_es18xx_get_hw_switch,
1387 },
1388 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1389 };
1390 
1391 static int __devinit snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1392 {
1393 	int data;
1394 	unsigned long flags;
1395         spin_lock_irqsave(&chip->ctrl_lock, flags);
1396 	outb(reg, chip->ctrl_port);
1397 	data = inb(chip->ctrl_port + 1);
1398         spin_unlock_irqrestore(&chip->ctrl_lock, flags);
1399 	return data;
1400 }
1401 
1402 static void __devinit snd_es18xx_config_write(struct snd_es18xx *chip,
1403 					      unsigned char reg, unsigned char data)
1404 {
1405 	/* No need for spinlocks, this function is used only in
1406 	   otherwise protected init code */
1407 	outb(reg, chip->ctrl_port);
1408 	outb(data, chip->ctrl_port + 1);
1409 #ifdef REG_DEBUG
1410 	snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1411 #endif
1412 }
1413 
1414 static int __devinit snd_es18xx_initialize(struct snd_es18xx *chip)
1415 {
1416 	int mask = 0;
1417 
1418         /* enable extended mode */
1419         snd_es18xx_dsp_command(chip, 0xC6);
1420 	/* Reset mixer registers */
1421 	snd_es18xx_mixer_write(chip, 0x00, 0x00);
1422 
1423         /* Audio 1 DMA demand mode (4 bytes/request) */
1424         snd_es18xx_write(chip, 0xB9, 2);
1425 	if (chip->caps & ES18XX_CONTROL) {
1426 		/* Hardware volume IRQ */
1427 		snd_es18xx_config_write(chip, 0x27, chip->irq);
1428 		if (chip->fm_port > 0 && chip->fm_port != SNDRV_AUTO_PORT) {
1429 			/* FM I/O */
1430 			snd_es18xx_config_write(chip, 0x62, chip->fm_port >> 8);
1431 			snd_es18xx_config_write(chip, 0x63, chip->fm_port & 0xff);
1432 		}
1433 		if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
1434 			/* MPU-401 I/O */
1435 			snd_es18xx_config_write(chip, 0x64, chip->mpu_port >> 8);
1436 			snd_es18xx_config_write(chip, 0x65, chip->mpu_port & 0xff);
1437 			/* MPU-401 IRQ */
1438 			snd_es18xx_config_write(chip, 0x28, chip->irq);
1439 		}
1440 		/* Audio1 IRQ */
1441 		snd_es18xx_config_write(chip, 0x70, chip->irq);
1442 		/* Audio2 IRQ */
1443 		snd_es18xx_config_write(chip, 0x72, chip->irq);
1444 		/* Audio1 DMA */
1445 		snd_es18xx_config_write(chip, 0x74, chip->dma1);
1446 		/* Audio2 DMA */
1447 		snd_es18xx_config_write(chip, 0x75, chip->dma2);
1448 
1449 		/* Enable Audio 1 IRQ */
1450 		snd_es18xx_write(chip, 0xB1, 0x50);
1451 		/* Enable Audio 2 IRQ */
1452 		snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1453 		/* Enable Audio 1 DMA */
1454 		snd_es18xx_write(chip, 0xB2, 0x50);
1455 		/* Enable MPU and hardware volume interrupt */
1456 		snd_es18xx_mixer_write(chip, 0x64, 0x42);
1457 	}
1458 	else {
1459 		int irqmask, dma1mask, dma2mask;
1460 		switch (chip->irq) {
1461 		case 2:
1462 		case 9:
1463 			irqmask = 0;
1464 			break;
1465 		case 5:
1466 			irqmask = 1;
1467 			break;
1468 		case 7:
1469 			irqmask = 2;
1470 			break;
1471 		case 10:
1472 			irqmask = 3;
1473 			break;
1474 		default:
1475 			snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1476 			return -ENODEV;
1477 		}
1478 		switch (chip->dma1) {
1479 		case 0:
1480 			dma1mask = 1;
1481 			break;
1482 		case 1:
1483 			dma1mask = 2;
1484 			break;
1485 		case 3:
1486 			dma1mask = 3;
1487 			break;
1488 		default:
1489 			snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1490 			return -ENODEV;
1491 		}
1492 		switch (chip->dma2) {
1493 		case 0:
1494 			dma2mask = 0;
1495 			break;
1496 		case 1:
1497 			dma2mask = 1;
1498 			break;
1499 		case 3:
1500 			dma2mask = 2;
1501 			break;
1502 		case 5:
1503 			dma2mask = 3;
1504 			break;
1505 		default:
1506 			snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1507 			return -ENODEV;
1508 		}
1509 
1510 		/* Enable and set Audio 1 IRQ */
1511 		snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1512 		/* Enable and set Audio 1 DMA */
1513 		snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1514 		/* Set Audio 2 DMA */
1515 		snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1516 		/* Enable Audio 2 IRQ and DMA
1517 		   Set capture mixer input */
1518 		snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1519 		/* Enable and set hardware volume interrupt */
1520 		snd_es18xx_mixer_write(chip, 0x64, 0x06);
1521 		if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
1522 			/* MPU401 share irq with audio
1523 			   Joystick enabled
1524 			   FM enabled */
1525 			snd_es18xx_mixer_write(chip, 0x40, 0x43 | (chip->mpu_port & 0xf0) >> 1);
1526 		}
1527 		snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1528 	}
1529 	if (chip->caps & ES18XX_NEW_RATE) {
1530 		/* Change behaviour of register A1
1531 		   4x oversampling
1532 		   2nd channel DAC asynchronous */
1533 		snd_es18xx_mixer_write(chip, 0x71, 0x32);
1534 	}
1535 	if (!(chip->caps & ES18XX_PCM2)) {
1536 		/* Enable DMA FIFO */
1537 		snd_es18xx_write(chip, 0xB7, 0x80);
1538 	}
1539 	if (chip->caps & ES18XX_SPATIALIZER) {
1540 		/* Set spatializer parameters to recommended values */
1541 		snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1542 		snd_es18xx_mixer_write(chip, 0x56, 0x95);
1543 		snd_es18xx_mixer_write(chip, 0x58, 0x94);
1544 		snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1545 	}
1546 	/* Flip the "enable I2S" bits for those chipsets that need it */
1547 	switch (chip->version) {
1548 	case 0x1879:
1549 		//Leaving I2S enabled on the 1879 screws up the PCM playback (rate effected somehow)
1550 		//so a Switch control has been added to toggle this 0x71 bit on/off:
1551 		//snd_es18xx_mixer_bits(chip, 0x71, 0x40, 0x40);
1552 		/* Note: we fall through on purpose here. */
1553 	case 0x1878:
1554 		snd_es18xx_config_write(chip, 0x29, snd_es18xx_config_read(chip, 0x29) | 0x40);
1555 		break;
1556 	}
1557 	/* Mute input source */
1558 	if (chip->caps & ES18XX_MUTEREC)
1559 		mask = 0x10;
1560 	if (chip->caps & ES18XX_RECMIX)
1561 		snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1562 	else {
1563 		snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1564 		snd_es18xx_write(chip, 0xb4, 0x00);
1565 	}
1566 #ifndef AVOID_POPS
1567 	/* Enable PCM output */
1568 	snd_es18xx_dsp_command(chip, 0xD1);
1569 #endif
1570 
1571         return 0;
1572 }
1573 
1574 static int __devinit snd_es18xx_identify(struct snd_es18xx *chip)
1575 {
1576 	int hi,lo;
1577 
1578 	/* reset */
1579 	if (snd_es18xx_reset(chip) < 0) {
1580 		snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1581 		return -ENODEV;
1582 	}
1583 
1584 	snd_es18xx_dsp_command(chip, 0xe7);
1585 	hi = snd_es18xx_dsp_get_byte(chip);
1586 	if (hi < 0) {
1587 		return hi;
1588 	}
1589 	lo = snd_es18xx_dsp_get_byte(chip);
1590 	if ((lo & 0xf0) != 0x80) {
1591 		return -ENODEV;
1592 	}
1593 	if (hi == 0x48) {
1594 		chip->version = 0x488;
1595 		return 0;
1596 	}
1597 	if (hi != 0x68) {
1598 		return -ENODEV;
1599 	}
1600 	if ((lo & 0x0f) < 8) {
1601 		chip->version = 0x688;
1602 		return 0;
1603 	}
1604 
1605         outb(0x40, chip->port + 0x04);
1606 	udelay(10);
1607 	hi = inb(chip->port + 0x05);
1608 	udelay(10);
1609 	lo = inb(chip->port + 0x05);
1610 	if (hi != lo) {
1611 		chip->version = hi << 8 | lo;
1612 		chip->ctrl_port = inb(chip->port + 0x05) << 8;
1613 		udelay(10);
1614 		chip->ctrl_port += inb(chip->port + 0x05);
1615 
1616 		if ((chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL")) == NULL) {
1617 			snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1618 			return -EBUSY;
1619 		}
1620 
1621 		return 0;
1622 	}
1623 
1624 	/* If has Hardware volume */
1625 	if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1626 		/* If has Audio2 */
1627 		if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1628 			/* If has volume count */
1629 			if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1630 				chip->version = 0x1887;
1631 			} else {
1632 				chip->version = 0x1888;
1633 			}
1634 		} else {
1635 			chip->version = 0x1788;
1636 		}
1637 	}
1638 	else
1639 		chip->version = 0x1688;
1640 	return 0;
1641 }
1642 
1643 static int __devinit snd_es18xx_probe(struct snd_es18xx *chip)
1644 {
1645 	if (snd_es18xx_identify(chip) < 0) {
1646 		snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1647                 return -ENODEV;
1648 	}
1649 
1650 	switch (chip->version) {
1651 	case 0x1868:
1652 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL;
1653 		break;
1654 	case 0x1869:
1655 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV;
1656 		break;
1657 	case 0x1878:
1658 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL;
1659 		break;
1660 	case 0x1879:
1661 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1662 		break;
1663 	case 0x1887:
1664 		chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME;
1665 		break;
1666 	case 0x1888:
1667 		chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME;
1668 		break;
1669 	default:
1670 		snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1671                            chip->port, chip->version);
1672                 return -ENODEV;
1673         }
1674 
1675         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1676 
1677 	if (chip->dma1 == chip->dma2)
1678 		chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1679 
1680         return snd_es18xx_initialize(chip);
1681 }
1682 
1683 static struct snd_pcm_ops snd_es18xx_playback_ops = {
1684 	.open =		snd_es18xx_playback_open,
1685 	.close =	snd_es18xx_playback_close,
1686 	.ioctl =	snd_pcm_lib_ioctl,
1687 	.hw_params =	snd_es18xx_playback_hw_params,
1688 	.hw_free =	snd_es18xx_pcm_hw_free,
1689 	.prepare =	snd_es18xx_playback_prepare,
1690 	.trigger =	snd_es18xx_playback_trigger,
1691 	.pointer =	snd_es18xx_playback_pointer,
1692 };
1693 
1694 static struct snd_pcm_ops snd_es18xx_capture_ops = {
1695 	.open =		snd_es18xx_capture_open,
1696 	.close =	snd_es18xx_capture_close,
1697 	.ioctl =	snd_pcm_lib_ioctl,
1698 	.hw_params =	snd_es18xx_capture_hw_params,
1699 	.hw_free =	snd_es18xx_pcm_hw_free,
1700 	.prepare =	snd_es18xx_capture_prepare,
1701 	.trigger =	snd_es18xx_capture_trigger,
1702 	.pointer =	snd_es18xx_capture_pointer,
1703 };
1704 
1705 static int __devinit snd_es18xx_pcm(struct snd_es18xx *chip, int device, struct snd_pcm ** rpcm)
1706 {
1707         struct snd_pcm *pcm;
1708 	char str[16];
1709 	int err;
1710 
1711 	if (rpcm)
1712 		*rpcm = NULL;
1713 	sprintf(str, "ES%x", chip->version);
1714 	if (chip->caps & ES18XX_PCM2)
1715 		err = snd_pcm_new(chip->card, str, device, 2, 1, &pcm);
1716 	else
1717 		err = snd_pcm_new(chip->card, str, device, 1, 1, &pcm);
1718         if (err < 0)
1719                 return err;
1720 
1721 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1722 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1723 
1724 	/* global setup */
1725         pcm->private_data = chip;
1726         pcm->info_flags = 0;
1727 	if (chip->caps & ES18XX_DUPLEX_SAME)
1728 		pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1729 	if (! (chip->caps & ES18XX_PCM2))
1730 		pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1731 	sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1732         chip->pcm = pcm;
1733 
1734 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1735 					      snd_dma_isa_data(),
1736 					      64*1024,
1737 					      chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1738 
1739         if (rpcm)
1740         	*rpcm = pcm;
1741 	return 0;
1742 }
1743 
1744 /* Power Management support functions */
1745 #ifdef CONFIG_PM
1746 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1747 {
1748 	struct snd_audiodrive *acard = card->private_data;
1749 	struct snd_es18xx *chip = acard->chip;
1750 
1751 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1752 
1753 	snd_pcm_suspend_all(chip->pcm);
1754 
1755 	/* power down */
1756 	chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1757 	chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1758 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1759 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1760 
1761 	return 0;
1762 }
1763 
1764 static int snd_es18xx_resume(struct snd_card *card)
1765 {
1766 	struct snd_audiodrive *acard = card->private_data;
1767 	struct snd_es18xx *chip = acard->chip;
1768 
1769 	/* restore PM register, we won't wake till (not 0x07) i/o activity though */
1770 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1771 
1772 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1773 	return 0;
1774 }
1775 #endif /* CONFIG_PM */
1776 
1777 static int snd_es18xx_free(struct snd_es18xx *chip)
1778 {
1779 	release_and_free_resource(chip->res_port);
1780 	release_and_free_resource(chip->res_ctrl_port);
1781 	release_and_free_resource(chip->res_mpu_port);
1782 	if (chip->irq >= 0)
1783 		free_irq(chip->irq, (void *) chip);
1784 	if (chip->dma1 >= 0) {
1785 		disable_dma(chip->dma1);
1786 		free_dma(chip->dma1);
1787 	}
1788 	if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1789 		disable_dma(chip->dma2);
1790 		free_dma(chip->dma2);
1791 	}
1792 	kfree(chip);
1793 	return 0;
1794 }
1795 
1796 static int snd_es18xx_dev_free(struct snd_device *device)
1797 {
1798 	struct snd_es18xx *chip = device->device_data;
1799 	return snd_es18xx_free(chip);
1800 }
1801 
1802 static int __devinit snd_es18xx_new_device(struct snd_card *card,
1803 					   unsigned long port,
1804 					   unsigned long mpu_port,
1805 					   unsigned long fm_port,
1806 					   int irq, int dma1, int dma2,
1807 					   struct snd_es18xx ** rchip)
1808 {
1809         struct snd_es18xx *chip;
1810 	static struct snd_device_ops ops = {
1811 		.dev_free =	snd_es18xx_dev_free,
1812         };
1813 	int err;
1814 
1815 	*rchip = NULL;
1816         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1817 	if (chip == NULL)
1818 		return -ENOMEM;
1819 	spin_lock_init(&chip->reg_lock);
1820  	spin_lock_init(&chip->mixer_lock);
1821  	spin_lock_init(&chip->ctrl_lock);
1822         chip->card = card;
1823         chip->port = port;
1824         chip->mpu_port = mpu_port;
1825         chip->fm_port = fm_port;
1826         chip->irq = -1;
1827         chip->dma1 = -1;
1828         chip->dma2 = -1;
1829         chip->audio2_vol = 0x00;
1830 	chip->active = 0;
1831 
1832 	if ((chip->res_port = request_region(port, 16, "ES18xx")) == NULL) {
1833 		snd_es18xx_free(chip);
1834 		snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1835 		return -EBUSY;
1836 	}
1837 
1838 	if (request_irq(irq, snd_es18xx_interrupt, SA_INTERRUPT, "ES18xx", (void *) chip)) {
1839 		snd_es18xx_free(chip);
1840 		snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1841 		return -EBUSY;
1842 	}
1843 	chip->irq = irq;
1844 
1845 	if (request_dma(dma1, "ES18xx DMA 1")) {
1846 		snd_es18xx_free(chip);
1847 		snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1848 		return -EBUSY;
1849 	}
1850 	chip->dma1 = dma1;
1851 
1852 	if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1853 		snd_es18xx_free(chip);
1854 		snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1855 		return -EBUSY;
1856 	}
1857 	chip->dma2 = dma2;
1858 
1859         if (snd_es18xx_probe(chip) < 0) {
1860                 snd_es18xx_free(chip);
1861                 return -ENODEV;
1862         }
1863 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1864 		snd_es18xx_free(chip);
1865 		return err;
1866 	}
1867         *rchip = chip;
1868         return 0;
1869 }
1870 
1871 static int __devinit snd_es18xx_mixer(struct snd_es18xx *chip)
1872 {
1873 	struct snd_card *card;
1874 	int err;
1875 	unsigned int idx;
1876 
1877 	card = chip->card;
1878 
1879 	strcpy(card->mixername, chip->pcm->name);
1880 
1881 	for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1882 		struct snd_kcontrol *kctl;
1883 		kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1884 		if (chip->caps & ES18XX_HWV) {
1885 			switch (idx) {
1886 			case 0:
1887 				chip->master_volume = kctl;
1888 				kctl->private_free = snd_es18xx_hwv_free;
1889 				break;
1890 			case 1:
1891 				chip->master_switch = kctl;
1892 				kctl->private_free = snd_es18xx_hwv_free;
1893 				break;
1894 			}
1895 		}
1896 		if ((err = snd_ctl_add(card, kctl)) < 0)
1897 			return err;
1898 	}
1899 	if (chip->caps & ES18XX_PCM2) {
1900 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1901 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip))) < 0)
1902 				return err;
1903 		}
1904 	} else {
1905 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1906 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip))) < 0)
1907 				return err;
1908 		}
1909 	}
1910 
1911 	if (chip->caps & ES18XX_RECMIX) {
1912 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1913 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip))) < 0)
1914 				return err;
1915 		}
1916 	}
1917 	switch (chip->version) {
1918 	default:
1919 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip))) < 0)
1920 			return err;
1921 		break;
1922 	case 0x1869:
1923 	case 0x1879:
1924 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip))) < 0)
1925 			return err;
1926 		break;
1927 	}
1928 	if (chip->caps & ES18XX_SPATIALIZER) {
1929 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1930 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip))) < 0)
1931 				return err;
1932 		}
1933 	}
1934 	if (chip->caps & ES18XX_HWV) {
1935 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1936 			struct snd_kcontrol *kctl;
1937 			kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1938 			if (idx == 0)
1939 				chip->hw_volume = kctl;
1940 			else
1941 				chip->hw_switch = kctl;
1942 			kctl->private_free = snd_es18xx_hwv_free;
1943 			if ((err = snd_ctl_add(card, kctl)) < 0)
1944 				return err;
1945 
1946 		}
1947 	}
1948 	/* finish initializing other chipset specific controls
1949 	 */
1950 	if (chip->version != 0x1868) {
1951 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_speaker,
1952 						     chip));
1953 		if (err < 0)
1954 			return err;
1955 	}
1956 	if (chip->version == 0x1869) {
1957 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1869); idx++) {
1958 			err = snd_ctl_add(card,
1959 					  snd_ctl_new1(&snd_es18xx_opt_1869[idx],
1960 						       chip));
1961 			if (err < 0)
1962 				return err;
1963 		}
1964 	} else if (chip->version == 0x1878) {
1965 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_1878,
1966 						     chip));
1967 		if (err < 0)
1968 			return err;
1969 	} else if (chip->version == 0x1879) {
1970 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1879); idx++) {
1971 			err = snd_ctl_add(card,
1972 					  snd_ctl_new1(&snd_es18xx_opt_1879[idx],
1973 						       chip));
1974 			if (err < 0)
1975 				return err;
1976 		}
1977 	}
1978 	return 0;
1979 }
1980 
1981 
1982 /* Card level */
1983 
1984 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");
1985 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1986 MODULE_LICENSE("GPL");
1987 MODULE_SUPPORTED_DEVICE("{{ESS,ES1868 PnP AudioDrive},"
1988 		"{ESS,ES1869 PnP AudioDrive},"
1989 		"{ESS,ES1878 PnP AudioDrive},"
1990 		"{ESS,ES1879 PnP AudioDrive},"
1991 		"{ESS,ES1887 PnP AudioDrive},"
1992 		"{ESS,ES1888 PnP AudioDrive},"
1993 		"{ESS,ES1887 AudioDrive},"
1994 		"{ESS,ES1888 AudioDrive}}");
1995 
1996 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
1997 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
1998 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1999 #ifdef CONFIG_PNP
2000 static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
2001 #endif
2002 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260,0x280 */
2003 #ifndef CONFIG_PNP
2004 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
2005 #else
2006 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
2007 #endif
2008 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
2009 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
2010 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
2011 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
2012 
2013 module_param_array(index, int, NULL, 0444);
2014 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
2015 module_param_array(id, charp, NULL, 0444);
2016 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
2017 module_param_array(enable, bool, NULL, 0444);
2018 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
2019 #ifdef CONFIG_PNP
2020 module_param_array(isapnp, bool, NULL, 0444);
2021 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
2022 #endif
2023 module_param_array(port, long, NULL, 0444);
2024 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
2025 module_param_array(mpu_port, long, NULL, 0444);
2026 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
2027 module_param_array(fm_port, long, NULL, 0444);
2028 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
2029 module_param_array(irq, int, NULL, 0444);
2030 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
2031 module_param_array(dma1, int, NULL, 0444);
2032 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
2033 module_param_array(dma2, int, NULL, 0444);
2034 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
2035 
2036 static struct platform_device *platform_devices[SNDRV_CARDS];
2037 
2038 #ifdef CONFIG_PNP
2039 static int pnp_registered;
2040 
2041 static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
2042 	/* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
2043 	{ .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
2044 	/* ESS 1868 (integrated on Maxisound Cards) */
2045 	{ .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
2046 	/* ESS 1868 (integrated on Maxisound Cards) */
2047 	{ .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
2048 	/* ESS ES1869 Plug and Play AudioDrive */
2049 	{ .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
2050 	/* ESS 1869 */
2051 	{ .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
2052 	/* ESS 1878 */
2053 	{ .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
2054 	/* ESS 1879 */
2055 	{ .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
2056 	/* --- */
2057 	{ .id = "" } /* end */
2058 };
2059 
2060 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
2061 
2062 static int __devinit snd_audiodrive_pnp(int dev, struct snd_audiodrive *acard,
2063 					struct pnp_card_link *card,
2064 					const struct pnp_card_device_id *id)
2065 {
2066 	struct pnp_dev *pdev;
2067 	struct pnp_resource_table * cfg = kmalloc(sizeof(struct pnp_resource_table), GFP_KERNEL);
2068 	int err;
2069 
2070 	if (!cfg)
2071 		return -ENOMEM;
2072 	acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
2073 	if (acard->dev == NULL) {
2074 		kfree(cfg);
2075 		return -EBUSY;
2076 	}
2077 	acard->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
2078 	if (acard->devc == NULL) {
2079 		kfree(cfg);
2080 		return -EBUSY;
2081 	}
2082 	/* Control port initialization */
2083 	err = pnp_activate_dev(acard->devc);
2084 	if (err < 0) {
2085 		snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
2086 		kfree(cfg);
2087 		return -EAGAIN;
2088 	}
2089 	snd_printdd("pnp: port=0x%lx\n", pnp_port_start(acard->devc, 0));
2090 	/* PnP initialization */
2091 	pdev = acard->dev;
2092 	pnp_init_resource_table(cfg);
2093 	if (port[dev] != SNDRV_AUTO_PORT)
2094 		pnp_resource_change(&cfg->port_resource[0], port[dev], 16);
2095 	if (fm_port[dev] != SNDRV_AUTO_PORT)
2096 		pnp_resource_change(&cfg->port_resource[1], fm_port[dev], 4);
2097 	if (mpu_port[dev] != SNDRV_AUTO_PORT)
2098 		pnp_resource_change(&cfg->port_resource[2], mpu_port[dev], 2);
2099 	if (dma1[dev] != SNDRV_AUTO_DMA)
2100 		pnp_resource_change(&cfg->dma_resource[0], dma1[dev], 1);
2101 	if (dma2[dev] != SNDRV_AUTO_DMA)
2102 		pnp_resource_change(&cfg->dma_resource[1], dma2[dev], 1);
2103 	if (irq[dev] != SNDRV_AUTO_IRQ)
2104 		pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
2105 	err = pnp_manual_config_dev(pdev, cfg, 0);
2106 	if (err < 0)
2107 		snd_printk(KERN_ERR PFX "PnP manual resources are invalid, using auto config\n");
2108 	err = pnp_activate_dev(pdev);
2109 	if (err < 0) {
2110 		snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
2111 		kfree(cfg);
2112 		return -EBUSY;
2113 	}
2114 	/* ok. hack using Vendor-Defined Card-Level registers */
2115 	/* skip csn and logdev initialization - already done in isapnp_configure */
2116 	if (pnp_device_is_isapnp(pdev)) {
2117 		isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
2118 		isapnp_write_byte(0x27, pnp_irq(pdev, 0));	/* Hardware Volume IRQ Number */
2119 		if (mpu_port[dev] != SNDRV_AUTO_PORT)
2120 			isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
2121 		isapnp_write_byte(0x72, pnp_irq(pdev, 0));	/* second IRQ */
2122 		isapnp_cfg_end();
2123 	} else {
2124 		snd_printk(KERN_ERR PFX "unable to install ISA PnP hack, expect malfunction\n");
2125 	}
2126 	port[dev] = pnp_port_start(pdev, 0);
2127 	fm_port[dev] = pnp_port_start(pdev, 1);
2128 	mpu_port[dev] = pnp_port_start(pdev, 2);
2129 	dma1[dev] = pnp_dma(pdev, 0);
2130 	dma2[dev] = pnp_dma(pdev, 1);
2131 	irq[dev] = pnp_irq(pdev, 0);
2132 	snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
2133 	snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
2134 	kfree(cfg);
2135 	return 0;
2136 }
2137 #endif /* CONFIG_PNP */
2138 
2139 #ifdef CONFIG_PNP
2140 #define is_isapnp_selected(dev)		isapnp[dev]
2141 #else
2142 #define is_isapnp_selected(dev)		0
2143 #endif
2144 
2145 static struct snd_card *snd_es18xx_card_new(int dev)
2146 {
2147 	return snd_card_new(index[dev], id[dev], THIS_MODULE,
2148 			    sizeof(struct snd_audiodrive));
2149 }
2150 
2151 static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev)
2152 {
2153 	struct snd_audiodrive *acard = card->private_data;
2154 	struct snd_es18xx *chip;
2155 	struct snd_opl3 *opl3;
2156 	int err;
2157 
2158 	if ((err = snd_es18xx_new_device(card,
2159 					 port[dev],
2160 					 mpu_port[dev],
2161 					 fm_port[dev],
2162 					 irq[dev], dma1[dev], dma2[dev],
2163 					 &chip)) < 0)
2164 		return err;
2165 	acard->chip = chip;
2166 
2167 	sprintf(card->driver, "ES%x", chip->version);
2168 
2169 	sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2170 	if (dma1[dev] != dma2[dev])
2171 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2172 			card->shortname,
2173 			chip->port,
2174 			irq[dev], dma1[dev], dma2[dev]);
2175 	else
2176 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2177 			card->shortname,
2178 			chip->port,
2179 			irq[dev], dma1[dev]);
2180 
2181 	if ((err = snd_es18xx_pcm(chip, 0, NULL)) < 0)
2182 		return err;
2183 
2184 	if ((err = snd_es18xx_mixer(chip)) < 0)
2185 		return err;
2186 
2187 	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2188 		if (snd_opl3_create(card, chip->fm_port, chip->fm_port + 2, OPL3_HW_OPL3, 0, &opl3) < 0) {
2189 			snd_printk(KERN_WARNING PFX "opl3 not detected at 0x%lx\n", chip->fm_port);
2190 		} else {
2191 			if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
2192 				return err;
2193 		}
2194 	}
2195 
2196 	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2197 		if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2198 					       chip->mpu_port, 0,
2199 					       irq[dev], 0,
2200 					       &chip->rmidi)) < 0)
2201 			return err;
2202 	}
2203 
2204 	return snd_card_register(card);
2205 }
2206 
2207 static int __devinit snd_es18xx_nonpnp_probe1(int dev, struct platform_device *devptr)
2208 {
2209 	struct snd_card *card;
2210 	int err;
2211 
2212 	card = snd_es18xx_card_new(dev);
2213 	if (! card)
2214 		return -ENOMEM;
2215 	snd_card_set_dev(card, &devptr->dev);
2216 	if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2217 		snd_card_free(card);
2218 		return err;
2219 	}
2220 	platform_set_drvdata(devptr, card);
2221 	return 0;
2222 }
2223 
2224 static int __devinit snd_es18xx_nonpnp_probe(struct platform_device *pdev)
2225 {
2226 	int dev = pdev->id;
2227 	int err;
2228 	static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2229 	static int possible_dmas[] = {1, 0, 3, 5, -1};
2230 
2231 	if (irq[dev] == SNDRV_AUTO_IRQ) {
2232 		if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
2233 			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2234 			return -EBUSY;
2235 		}
2236 	}
2237 	if (dma1[dev] == SNDRV_AUTO_DMA) {
2238 		if ((dma1[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2239 			snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2240 			return -EBUSY;
2241 		}
2242 	}
2243 	if (dma2[dev] == SNDRV_AUTO_DMA) {
2244 		if ((dma2[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2245 			snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2246 			return -EBUSY;
2247 		}
2248 	}
2249 
2250 	if (port[dev] != SNDRV_AUTO_PORT) {
2251 		return snd_es18xx_nonpnp_probe1(dev, pdev);
2252 	} else {
2253 		static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2254 		int i;
2255 		for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2256 			port[dev] = possible_ports[i];
2257 			err = snd_es18xx_nonpnp_probe1(dev, pdev);
2258 			if (! err)
2259 				return 0;
2260 		}
2261 		return err;
2262 	}
2263 }
2264 
2265 static int __devexit snd_es18xx_nonpnp_remove(struct platform_device *devptr)
2266 {
2267 	snd_card_free(platform_get_drvdata(devptr));
2268 	platform_set_drvdata(devptr, NULL);
2269 	return 0;
2270 }
2271 
2272 #ifdef CONFIG_PM
2273 static int snd_es18xx_nonpnp_suspend(struct platform_device *dev, pm_message_t state)
2274 {
2275 	return snd_es18xx_suspend(platform_get_drvdata(dev), state);
2276 }
2277 
2278 static int snd_es18xx_nonpnp_resume(struct platform_device *dev)
2279 {
2280 	return snd_es18xx_resume(platform_get_drvdata(dev));
2281 }
2282 #endif
2283 
2284 #define ES18XX_DRIVER	"snd_es18xx"
2285 
2286 static struct platform_driver snd_es18xx_nonpnp_driver = {
2287 	.probe		= snd_es18xx_nonpnp_probe,
2288 	.remove		= __devexit_p(snd_es18xx_nonpnp_remove),
2289 #ifdef CONFIG_PM
2290 	.suspend	= snd_es18xx_nonpnp_suspend,
2291 	.resume		= snd_es18xx_nonpnp_resume,
2292 #endif
2293 	.driver		= {
2294 		.name	= ES18XX_DRIVER
2295 	},
2296 };
2297 
2298 
2299 #ifdef CONFIG_PNP
2300 static unsigned int __devinitdata es18xx_pnp_devices;
2301 
2302 static int __devinit snd_audiodrive_pnp_detect(struct pnp_card_link *pcard,
2303 					       const struct pnp_card_device_id *pid)
2304 {
2305 	static int dev;
2306 	struct snd_card *card;
2307 	int res;
2308 
2309 	for ( ; dev < SNDRV_CARDS; dev++) {
2310 		if (enable[dev] && isapnp[dev])
2311 			break;
2312 	}
2313 	if (dev >= SNDRV_CARDS)
2314 		return -ENODEV;
2315 
2316 	card = snd_es18xx_card_new(dev);
2317 	if (! card)
2318 		return -ENOMEM;
2319 
2320 	if ((res = snd_audiodrive_pnp(dev, card->private_data, pcard, pid)) < 0) {
2321 		snd_card_free(card);
2322 		return res;
2323 	}
2324 	snd_card_set_dev(card, &pcard->card->dev);
2325 	if ((res = snd_audiodrive_probe(card, dev)) < 0) {
2326 		snd_card_free(card);
2327 		return res;
2328 	}
2329 
2330 	pnp_set_card_drvdata(pcard, card);
2331 	dev++;
2332 	es18xx_pnp_devices++;
2333 	return 0;
2334 }
2335 
2336 static void __devexit snd_audiodrive_pnp_remove(struct pnp_card_link * pcard)
2337 {
2338 	snd_card_free(pnp_get_card_drvdata(pcard));
2339 	pnp_set_card_drvdata(pcard, NULL);
2340 }
2341 
2342 #ifdef CONFIG_PM
2343 static int snd_audiodrive_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
2344 {
2345 	return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2346 }
2347 
2348 static int snd_audiodrive_pnp_resume(struct pnp_card_link *pcard)
2349 {
2350 	return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2351 }
2352 
2353 #endif
2354 
2355 static struct pnp_card_driver es18xx_pnpc_driver = {
2356 	.flags = PNP_DRIVER_RES_DISABLE,
2357 	.name = "es18xx",
2358 	.id_table = snd_audiodrive_pnpids,
2359 	.probe = snd_audiodrive_pnp_detect,
2360 	.remove = __devexit_p(snd_audiodrive_pnp_remove),
2361 #ifdef CONFIG_PM
2362 	.suspend	= snd_audiodrive_pnp_suspend,
2363 	.resume		= snd_audiodrive_pnp_resume,
2364 #endif
2365 };
2366 #endif /* CONFIG_PNP */
2367 
2368 static void __init_or_module snd_es18xx_unregister_all(void)
2369 {
2370 	int i;
2371 
2372 #ifdef CONFIG_PNP
2373 	if (pnp_registered)
2374 		pnp_unregister_card_driver(&es18xx_pnpc_driver);
2375 #endif
2376 	for (i = 0; i < ARRAY_SIZE(platform_devices); ++i)
2377 		platform_device_unregister(platform_devices[i]);
2378 	platform_driver_unregister(&snd_es18xx_nonpnp_driver);
2379 }
2380 
2381 static int __init alsa_card_es18xx_init(void)
2382 {
2383 	int i, err, cards = 0;
2384 
2385 	if ((err = platform_driver_register(&snd_es18xx_nonpnp_driver)) < 0)
2386 		return err;
2387 
2388 	for (i = 0; i < SNDRV_CARDS; i++) {
2389 		struct platform_device *device;
2390 		if (! enable[i] || is_isapnp_selected(i))
2391 			continue;
2392 		device = platform_device_register_simple(ES18XX_DRIVER,
2393 							 i, NULL, 0);
2394 		if (IS_ERR(device)) {
2395 			err = PTR_ERR(device);
2396 			goto errout;
2397 		}
2398 		platform_devices[i] = device;
2399 		cards++;
2400 	}
2401 
2402 #ifdef CONFIG_PNP
2403 	err = pnp_register_card_driver(&es18xx_pnpc_driver);
2404 	if (!err) {
2405 		pnp_registered = 1;
2406 		cards += es18xx_pnp_devices;
2407 	}
2408 #endif
2409 
2410 	if(!cards) {
2411 #ifdef MODULE
2412 		snd_printk(KERN_ERR "ESS AudioDrive ES18xx soundcard not found or device busy\n");
2413 #endif
2414 		err = -ENODEV;
2415 		goto errout;
2416 	}
2417 	return 0;
2418 
2419  errout:
2420 	snd_es18xx_unregister_all();
2421 	return err;
2422 }
2423 
2424 static void __exit alsa_card_es18xx_exit(void)
2425 {
2426 	snd_es18xx_unregister_all();
2427 }
2428 
2429 module_init(alsa_card_es18xx_init)
2430 module_exit(alsa_card_es18xx_exit)
2431