xref: /openbmc/linux/sound/isa/es18xx.c (revision 87c2ce3b)
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  * BUGS:
53  *
54  * - There is a major trouble I noted:
55  *
56  *   using both channel for playback stereo 16 bit samples at 44100 Hz
57  *   the second pcm (Audio1) DMA slows down irregularly and sound is garbled.
58  *
59  *   The same happens using Audio1 for captureing.
60  *
61  *   The Windows driver does not suffer of this (although it use Audio1
62  *   only for captureing). I'm unable to discover why.
63  *
64  */
65 
66 
67 #include <sound/driver.h>
68 #include <linux/init.h>
69 #include <linux/err.h>
70 #include <linux/platform_device.h>
71 #include <linux/slab.h>
72 #include <linux/pnp.h>
73 #include <linux/isapnp.h>
74 #include <linux/moduleparam.h>
75 #include <asm/io.h>
76 #include <asm/dma.h>
77 #include <sound/core.h>
78 #include <sound/control.h>
79 #include <sound/pcm.h>
80 #include <sound/pcm_params.h>
81 #include <sound/mpu401.h>
82 #include <sound/opl3.h>
83 #define SNDRV_LEGACY_FIND_FREE_IRQ
84 #define SNDRV_LEGACY_FIND_FREE_DMA
85 #include <sound/initval.h>
86 
87 #define PFX "es18xx: "
88 
89 struct snd_es18xx {
90 	unsigned long port;		/* port of ESS chip */
91 	unsigned long mpu_port;		/* MPU-401 port of ESS chip */
92 	unsigned long fm_port;		/* FM port */
93 	unsigned long ctrl_port;	/* Control port of ESS chip */
94 	struct resource *res_port;
95 	struct resource *res_mpu_port;
96 	struct resource *res_ctrl_port;
97 	int irq;			/* IRQ number of ESS chip */
98 	int dma1;			/* DMA1 */
99 	int dma2;			/* DMA2 */
100 	unsigned short version;		/* version of ESS chip */
101 	int caps;			/* Chip capabilities */
102 	unsigned short audio2_vol;	/* volume level of audio2 */
103 
104 	unsigned short active;		/* active channel mask */
105 	unsigned int dma1_size;
106 	unsigned int dma2_size;
107 	unsigned int dma1_shift;
108 	unsigned int dma2_shift;
109 
110 	struct snd_card *card;
111 	struct snd_pcm *pcm;
112 	struct snd_pcm_substream *playback_a_substream;
113 	struct snd_pcm_substream *capture_a_substream;
114 	struct snd_pcm_substream *playback_b_substream;
115 
116 	struct snd_rawmidi *rmidi;
117 
118 	struct snd_kcontrol *hw_volume;
119 	struct snd_kcontrol *hw_switch;
120 	struct snd_kcontrol *master_volume;
121 	struct snd_kcontrol *master_switch;
122 
123 	spinlock_t reg_lock;
124 	spinlock_t mixer_lock;
125 	spinlock_t ctrl_lock;
126 #ifdef CONFIG_PM
127 	unsigned char pm_reg;
128 #endif
129 };
130 
131 struct snd_audiodrive {
132 	struct snd_es18xx *chip;
133 #ifdef CONFIG_PNP
134 	struct pnp_dev *dev;
135 	struct pnp_dev *devc;
136 #endif
137 };
138 
139 #define AUDIO1_IRQ	0x01
140 #define AUDIO2_IRQ	0x02
141 #define HWV_IRQ		0x04
142 #define MPU_IRQ		0x08
143 
144 #define ES18XX_PCM2	0x0001	/* Has two useable PCM */
145 #define ES18XX_SPATIALIZER 0x0002	/* Has 3D Spatializer */
146 #define ES18XX_RECMIX	0x0004	/* Has record mixer */
147 #define ES18XX_DUPLEX_MONO 0x0008	/* Has mono duplex only */
148 #define ES18XX_DUPLEX_SAME 0x0010	/* Playback and record must share the same rate */
149 #define ES18XX_NEW_RATE	0x0020	/* More precise rate setting */
150 #define ES18XX_AUXB	0x0040	/* AuxB mixer control */
151 #define ES18XX_HWV	0x0080	/* Has hardware volume */
152 #define ES18XX_MONO	0x0100	/* Mono_in mixer control */
153 #define ES18XX_I2S	0x0200	/* I2S mixer control */
154 #define ES18XX_MUTEREC	0x0400	/* Record source can be muted */
155 #define ES18XX_CONTROL	0x0800	/* Has control ports */
156 
157 /* Power Management */
158 #define ES18XX_PM	0x07
159 #define ES18XX_PM_GPO0	0x01
160 #define ES18XX_PM_GPO1	0x02
161 #define ES18XX_PM_PDR	0x04
162 #define ES18XX_PM_ANA	0x08
163 #define ES18XX_PM_FM	0x020
164 #define ES18XX_PM_SUS	0x080
165 
166 /* Lowlevel */
167 
168 #define DAC1 0x01
169 #define ADC1 0x02
170 #define DAC2 0x04
171 #define MILLISECOND 10000
172 
173 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
174 {
175         int i;
176 
177         for(i = MILLISECOND; i; i--)
178                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
179                         outb(val, chip->port + 0x0C);
180                         return 0;
181                 }
182 	snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
183         return -EINVAL;
184 }
185 
186 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
187 {
188         int i;
189 
190         for(i = MILLISECOND/10; i; i--)
191                 if (inb(chip->port + 0x0C) & 0x40)
192                         return inb(chip->port + 0x0A);
193 	snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
194 		   chip->port + 0x0A, inb(chip->port + 0x0A));
195         return -ENODEV;
196 }
197 
198 #undef REG_DEBUG
199 
200 static int snd_es18xx_write(struct snd_es18xx *chip,
201 			    unsigned char reg, unsigned char data)
202 {
203 	unsigned long flags;
204 	int ret;
205 
206         spin_lock_irqsave(&chip->reg_lock, flags);
207 	ret = snd_es18xx_dsp_command(chip, reg);
208 	if (ret < 0)
209 		goto end;
210         ret = snd_es18xx_dsp_command(chip, data);
211  end:
212         spin_unlock_irqrestore(&chip->reg_lock, flags);
213 #ifdef REG_DEBUG
214 	snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
215 #endif
216 	return ret;
217 }
218 
219 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
220 {
221 	unsigned long flags;
222 	int ret, data;
223         spin_lock_irqsave(&chip->reg_lock, flags);
224 	ret = snd_es18xx_dsp_command(chip, 0xC0);
225 	if (ret < 0)
226 		goto end;
227         ret = snd_es18xx_dsp_command(chip, reg);
228 	if (ret < 0)
229 		goto end;
230 	data = snd_es18xx_dsp_get_byte(chip);
231 	ret = data;
232 #ifdef REG_DEBUG
233 	snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
234 #endif
235  end:
236         spin_unlock_irqrestore(&chip->reg_lock, flags);
237 	return ret;
238 }
239 
240 /* Return old value */
241 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
242 			   unsigned char mask, unsigned char val)
243 {
244         int ret;
245 	unsigned char old, new, oval;
246 	unsigned long flags;
247         spin_lock_irqsave(&chip->reg_lock, flags);
248         ret = snd_es18xx_dsp_command(chip, 0xC0);
249 	if (ret < 0)
250 		goto end;
251         ret = snd_es18xx_dsp_command(chip, reg);
252 	if (ret < 0)
253 		goto end;
254 	ret = snd_es18xx_dsp_get_byte(chip);
255 	if (ret < 0) {
256 		goto end;
257 	}
258 	old = ret;
259 	oval = old & mask;
260 	if (val != oval) {
261 		ret = snd_es18xx_dsp_command(chip, reg);
262 		if (ret < 0)
263 			goto end;
264 		new = (old & ~mask) | (val & mask);
265 		ret = snd_es18xx_dsp_command(chip, new);
266 		if (ret < 0)
267 			goto end;
268 #ifdef REG_DEBUG
269 		snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
270 			   reg, old, new, ret);
271 #endif
272 	}
273 	ret = oval;
274  end:
275         spin_unlock_irqrestore(&chip->reg_lock, flags);
276 	return ret;
277 }
278 
279 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
280 			    unsigned char reg, unsigned char data)
281 {
282 	unsigned long flags;
283         spin_lock_irqsave(&chip->mixer_lock, flags);
284         outb(reg, chip->port + 0x04);
285         outb(data, chip->port + 0x05);
286         spin_unlock_irqrestore(&chip->mixer_lock, flags);
287 #ifdef REG_DEBUG
288 	snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
289 #endif
290 }
291 
292 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
293 {
294 	unsigned long flags;
295 	int data;
296         spin_lock_irqsave(&chip->mixer_lock, flags);
297         outb(reg, chip->port + 0x04);
298 	data = inb(chip->port + 0x05);
299         spin_unlock_irqrestore(&chip->mixer_lock, flags);
300 #ifdef REG_DEBUG
301 	snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
302 #endif
303         return data;
304 }
305 
306 /* Return old value */
307 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
308 					unsigned char mask, unsigned char val)
309 {
310 	unsigned char old, new, oval;
311 	unsigned long flags;
312         spin_lock_irqsave(&chip->mixer_lock, flags);
313         outb(reg, chip->port + 0x04);
314 	old = inb(chip->port + 0x05);
315 	oval = old & mask;
316 	if (val != oval) {
317 		new = (old & ~mask) | (val & mask);
318 		outb(new, chip->port + 0x05);
319 #ifdef REG_DEBUG
320 		snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
321 			   reg, old, new);
322 #endif
323 	}
324         spin_unlock_irqrestore(&chip->mixer_lock, flags);
325 	return oval;
326 }
327 
328 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
329 					    unsigned char mask)
330 {
331 	int old, expected, new;
332 	unsigned long flags;
333         spin_lock_irqsave(&chip->mixer_lock, flags);
334         outb(reg, chip->port + 0x04);
335 	old = inb(chip->port + 0x05);
336 	expected = old ^ mask;
337 	outb(expected, chip->port + 0x05);
338 	new = inb(chip->port + 0x05);
339         spin_unlock_irqrestore(&chip->mixer_lock, flags);
340 #ifdef REG_DEBUG
341 	snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
342 		   reg, old, expected, new);
343 #endif
344 	return expected == new;
345 }
346 
347 
348 static int snd_es18xx_reset(struct snd_es18xx *chip)
349 {
350 	int i;
351         outb(0x03, chip->port + 0x06);
352         inb(chip->port + 0x06);
353         outb(0x00, chip->port + 0x06);
354         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
355         if (inb(chip->port + 0x0A) != 0xAA)
356                 return -1;
357 	return 0;
358 }
359 
360 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
361 {
362         outb(0x02, chip->port + 0x06);
363         inb(chip->port + 0x06);
364         outb(0x00, chip->port + 0x06);
365 	return 0;
366 }
367 
368 static struct snd_ratnum new_clocks[2] = {
369 	{
370 		.num = 793800,
371 		.den_min = 1,
372 		.den_max = 128,
373 		.den_step = 1,
374 	},
375 	{
376 		.num = 768000,
377 		.den_min = 1,
378 		.den_max = 128,
379 		.den_step = 1,
380 	}
381 };
382 
383 static struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
384 	.nrats = 2,
385 	.rats = new_clocks,
386 };
387 
388 static struct snd_ratnum old_clocks[2] = {
389 	{
390 		.num = 795444,
391 		.den_min = 1,
392 		.den_max = 128,
393 		.den_step = 1,
394 	},
395 	{
396 		.num = 397722,
397 		.den_min = 1,
398 		.den_max = 128,
399 		.den_step = 1,
400 	}
401 };
402 
403 static struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
404 	.nrats = 2,
405 	.rats = old_clocks,
406 };
407 
408 
409 static void snd_es18xx_rate_set(struct snd_es18xx *chip,
410 				struct snd_pcm_substream *substream,
411 				int mode)
412 {
413 	unsigned int bits, div0;
414 	struct snd_pcm_runtime *runtime = substream->runtime;
415 	if (chip->caps & ES18XX_NEW_RATE) {
416 		if (runtime->rate_num == new_clocks[0].num)
417 			bits = 128 - runtime->rate_den;
418 		else
419 			bits = 256 - runtime->rate_den;
420 	} else {
421 		if (runtime->rate_num == old_clocks[0].num)
422 			bits = 256 - runtime->rate_den;
423 		else
424 			bits = 128 - runtime->rate_den;
425 	}
426 
427 	/* set filter register */
428 	div0 = 256 - 7160000*20/(8*82*runtime->rate);
429 
430 	if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
431 		snd_es18xx_mixer_write(chip, 0x70, bits);
432 		/*
433 		 * Comment from kernel oss driver:
434 		 * FKS: fascinating: 0x72 doesn't seem to work.
435 		 */
436 		snd_es18xx_write(chip, 0xA2, div0);
437 		snd_es18xx_mixer_write(chip, 0x72, div0);
438 	} else {
439 		snd_es18xx_write(chip, 0xA1, bits);
440 		snd_es18xx_write(chip, 0xA2, div0);
441 	}
442 }
443 
444 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
445 					 struct snd_pcm_hw_params *hw_params)
446 {
447 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
448 	int shift, err;
449 
450 	shift = 0;
451 	if (params_channels(hw_params) == 2)
452 		shift++;
453 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
454 		shift++;
455 
456 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
457 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
458 		    (chip->capture_a_substream) &&
459 		    params_channels(hw_params) != 1) {
460 			_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
461 			return -EBUSY;
462 		}
463 		chip->dma2_shift = shift;
464 	} else {
465 		chip->dma1_shift = shift;
466 	}
467 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
468 		return err;
469 	return 0;
470 }
471 
472 static int snd_es18xx_pcm_hw_free(struct snd_pcm_substream *substream)
473 {
474 	return snd_pcm_lib_free_pages(substream);
475 }
476 
477 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
478 					struct snd_pcm_substream *substream)
479 {
480 	struct snd_pcm_runtime *runtime = substream->runtime;
481 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
482 	unsigned int count = snd_pcm_lib_period_bytes(substream);
483 
484 	chip->dma2_size = size;
485 
486         snd_es18xx_rate_set(chip, substream, DAC2);
487 
488         /* Transfer Count Reload */
489         count = 0x10000 - count;
490         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
491         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
492 
493 	/* Set format */
494         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
495 			      ((runtime->channels == 1) ? 0x00 : 0x02) |
496 			      (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
497 			      (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
498 
499         /* Set DMA controller */
500         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
501 
502 	return 0;
503 }
504 
505 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
506 					struct snd_pcm_substream *substream,
507 					int cmd)
508 {
509 	switch (cmd) {
510 	case SNDRV_PCM_TRIGGER_START:
511 	case SNDRV_PCM_TRIGGER_RESUME:
512 		if (chip->active & DAC2)
513 			return 0;
514 		chip->active |= DAC2;
515                 /* Start DMA */
516 		if (chip->dma2 >= 4)
517 			snd_es18xx_mixer_write(chip, 0x78, 0xb3);
518 		else
519 			snd_es18xx_mixer_write(chip, 0x78, 0x93);
520 #ifdef AVOID_POPS
521 		/* Avoid pops */
522                 udelay(100000);
523 		if (chip->caps & ES18XX_PCM2)
524 			/* Restore Audio 2 volume */
525 			snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
526 		else
527 			/* Enable PCM output */
528 			snd_es18xx_dsp_command(chip, 0xD1);
529 #endif
530 		break;
531 	case SNDRV_PCM_TRIGGER_STOP:
532 	case SNDRV_PCM_TRIGGER_SUSPEND:
533 		if (!(chip->active & DAC2))
534 			return 0;
535 		chip->active &= ~DAC2;
536                 /* Stop DMA */
537                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
538 #ifdef AVOID_POPS
539                 udelay(25000);
540 		if (chip->caps & ES18XX_PCM2)
541 			/* Set Audio 2 volume to 0 */
542 			snd_es18xx_mixer_write(chip, 0x7C, 0);
543 		else
544 			/* Disable PCM output */
545 			snd_es18xx_dsp_command(chip, 0xD3);
546 #endif
547 		break;
548 	default:
549 		return -EINVAL;
550 	}
551 
552 	return 0;
553 }
554 
555 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
556 					struct snd_pcm_hw_params *hw_params)
557 {
558 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
559 	int shift, err;
560 
561 	shift = 0;
562 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
563 	    chip->playback_a_substream &&
564 	    params_channels(hw_params) != 1) {
565 		_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
566 		return -EBUSY;
567 	}
568 	if (params_channels(hw_params) == 2)
569 		shift++;
570 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
571 		shift++;
572 	chip->dma1_shift = shift;
573 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
574 		return err;
575 	return 0;
576 }
577 
578 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
579 {
580         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
581 	struct snd_pcm_runtime *runtime = substream->runtime;
582 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
583 	unsigned int count = snd_pcm_lib_period_bytes(substream);
584 
585 	chip->dma1_size = size;
586 
587 	snd_es18xx_reset_fifo(chip);
588 
589         /* Set stereo/mono */
590         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
591 
592         snd_es18xx_rate_set(chip, substream, ADC1);
593 
594         /* Transfer Count Reload */
595 	count = 0x10000 - count;
596 	snd_es18xx_write(chip, 0xA4, count & 0xff);
597 	snd_es18xx_write(chip, 0xA5, count >> 8);
598 
599 #ifdef AVOID_POPS
600 	udelay(100000);
601 #endif
602 
603         /* Set format */
604         snd_es18xx_write(chip, 0xB7,
605                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
606         snd_es18xx_write(chip, 0xB7, 0x90 |
607                          ((runtime->channels == 1) ? 0x40 : 0x08) |
608                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
609                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
610 
611         /* Set DMA controler */
612         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
613 
614 	return 0;
615 }
616 
617 static int snd_es18xx_capture_trigger(struct snd_pcm_substream *substream,
618 				      int cmd)
619 {
620         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
621 
622 	switch (cmd) {
623 	case SNDRV_PCM_TRIGGER_START:
624 	case SNDRV_PCM_TRIGGER_RESUME:
625 		if (chip->active & ADC1)
626 			return 0;
627 		chip->active |= ADC1;
628                 /* Start DMA */
629                 snd_es18xx_write(chip, 0xB8, 0x0f);
630 		break;
631 	case SNDRV_PCM_TRIGGER_STOP:
632 	case SNDRV_PCM_TRIGGER_SUSPEND:
633 		if (!(chip->active & ADC1))
634 			return 0;
635 		chip->active &= ~ADC1;
636                 /* Stop DMA */
637                 snd_es18xx_write(chip, 0xB8, 0x00);
638 		break;
639 	default:
640 		return -EINVAL;
641 	}
642 
643 	return 0;
644 }
645 
646 static int snd_es18xx_playback2_prepare(struct snd_es18xx *chip,
647 					struct snd_pcm_substream *substream)
648 {
649 	struct snd_pcm_runtime *runtime = substream->runtime;
650 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
651 	unsigned int count = snd_pcm_lib_period_bytes(substream);
652 
653 	chip->dma1_size = size;
654 
655 	snd_es18xx_reset_fifo(chip);
656 
657         /* Set stereo/mono */
658         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
659 
660         snd_es18xx_rate_set(chip, substream, DAC1);
661 
662         /* Transfer Count Reload */
663 	count = 0x10000 - count;
664 	snd_es18xx_write(chip, 0xA4, count & 0xff);
665 	snd_es18xx_write(chip, 0xA5, count >> 8);
666 
667         /* Set format */
668         snd_es18xx_write(chip, 0xB6,
669                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
670         snd_es18xx_write(chip, 0xB7,
671                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
672         snd_es18xx_write(chip, 0xB7, 0x90 |
673                          (runtime->channels == 1 ? 0x40 : 0x08) |
674                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
675                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
676 
677         /* Set DMA controler */
678         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
679 
680 	return 0;
681 }
682 
683 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
684 					struct snd_pcm_substream *substream,
685 					int cmd)
686 {
687 	switch (cmd) {
688 	case SNDRV_PCM_TRIGGER_START:
689 	case SNDRV_PCM_TRIGGER_RESUME:
690 		if (chip->active & DAC1)
691 			return 0;
692 		chip->active |= DAC1;
693                 /* Start DMA */
694                 snd_es18xx_write(chip, 0xB8, 0x05);
695 #ifdef AVOID_POPS
696 		/* Avoid pops */
697                 udelay(100000);
698                 /* Enable Audio 1 */
699                 snd_es18xx_dsp_command(chip, 0xD1);
700 #endif
701 		break;
702 	case SNDRV_PCM_TRIGGER_STOP:
703 	case SNDRV_PCM_TRIGGER_SUSPEND:
704 		if (!(chip->active & DAC1))
705 			return 0;
706 		chip->active &= ~DAC1;
707                 /* Stop DMA */
708                 snd_es18xx_write(chip, 0xB8, 0x00);
709 #ifdef AVOID_POPS
710 		/* Avoid pops */
711                 udelay(25000);
712                 /* Disable Audio 1 */
713                 snd_es18xx_dsp_command(chip, 0xD3);
714 #endif
715 		break;
716 	default:
717 		return -EINVAL;
718 	}
719 
720 	return 0;
721 }
722 
723 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
724 {
725         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
726 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
727 		return snd_es18xx_playback1_prepare(chip, substream);
728 	else
729 		return snd_es18xx_playback2_prepare(chip, substream);
730 }
731 
732 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
733 				       int cmd)
734 {
735         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
736 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
737 		return snd_es18xx_playback1_trigger(chip, substream, cmd);
738 	else
739 		return snd_es18xx_playback2_trigger(chip, substream, cmd);
740 }
741 
742 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
743 {
744 	struct snd_es18xx *chip = dev_id;
745 	unsigned char status;
746 
747 	if (chip->caps & ES18XX_CONTROL) {
748 		/* Read Interrupt status */
749 		status = inb(chip->ctrl_port + 6);
750 	} else {
751 		/* Read Interrupt status */
752 		status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
753 	}
754 #if 0
755 	else {
756 		status = 0;
757 		if (inb(chip->port + 0x0C) & 0x01)
758 			status |= AUDIO1_IRQ;
759 		if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
760 			status |= AUDIO2_IRQ;
761 		if ((chip->caps & ES18XX_HWV) &&
762 		    snd_es18xx_mixer_read(chip, 0x64) & 0x10)
763 			status |= HWV_IRQ;
764 	}
765 #endif
766 
767 	/* Audio 1 & Audio 2 */
768         if (status & AUDIO2_IRQ) {
769                 if (chip->active & DAC2)
770                 	snd_pcm_period_elapsed(chip->playback_a_substream);
771 		/* ack interrupt */
772                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
773         }
774         if (status & AUDIO1_IRQ) {
775                 /* ok.. capture is active */
776                 if (chip->active & ADC1)
777                 	snd_pcm_period_elapsed(chip->capture_a_substream);
778                 /* ok.. playback2 is active */
779                 else if (chip->active & DAC1)
780                 	snd_pcm_period_elapsed(chip->playback_b_substream);
781 		/* ack interrupt */
782 		inb(chip->port + 0x0E);
783         }
784 
785 	/* MPU */
786 	if ((status & MPU_IRQ) && chip->rmidi)
787 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
788 
789 	/* Hardware volume */
790 	if (status & HWV_IRQ) {
791 		int split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
792 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
793 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
794 		if (!split) {
795 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_switch->id);
796 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_volume->id);
797 		}
798 		/* ack interrupt */
799 		snd_es18xx_mixer_write(chip, 0x66, 0x00);
800 	}
801 	return IRQ_HANDLED;
802 }
803 
804 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
805 {
806         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
807 	int pos;
808 
809 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
810 		if (!(chip->active & DAC2))
811 			return 0;
812 		pos = snd_dma_pointer(chip->dma2, chip->dma2_size);
813 		return pos >> chip->dma2_shift;
814 	} else {
815 		if (!(chip->active & DAC1))
816 			return 0;
817 		pos = snd_dma_pointer(chip->dma1, chip->dma1_size);
818 		return pos >> chip->dma1_shift;
819 	}
820 }
821 
822 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
823 {
824         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
825 	int pos;
826 
827         if (!(chip->active & ADC1))
828                 return 0;
829 	pos = snd_dma_pointer(chip->dma1, chip->dma1_size);
830 	return pos >> chip->dma1_shift;
831 }
832 
833 static struct snd_pcm_hardware snd_es18xx_playback =
834 {
835 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
836 				 SNDRV_PCM_INFO_RESUME |
837 				 SNDRV_PCM_INFO_MMAP_VALID),
838 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
839 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
840 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
841 	.rate_min =		4000,
842 	.rate_max =		48000,
843 	.channels_min =		1,
844 	.channels_max =		2,
845 	.buffer_bytes_max =	65536,
846 	.period_bytes_min =	64,
847 	.period_bytes_max =	65536,
848 	.periods_min =		1,
849 	.periods_max =		1024,
850 	.fifo_size =		0,
851 };
852 
853 static struct snd_pcm_hardware snd_es18xx_capture =
854 {
855 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
856 				 SNDRV_PCM_INFO_RESUME |
857 				 SNDRV_PCM_INFO_MMAP_VALID),
858 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
859 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
860 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
861 	.rate_min =		4000,
862 	.rate_max =		48000,
863 	.channels_min =		1,
864 	.channels_max =		2,
865 	.buffer_bytes_max =	65536,
866 	.period_bytes_min =	64,
867 	.period_bytes_max =	65536,
868 	.periods_min =		1,
869 	.periods_max =		1024,
870 	.fifo_size =		0,
871 };
872 
873 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
874 {
875 	struct snd_pcm_runtime *runtime = substream->runtime;
876         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
877 
878 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
879 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
880 		    chip->capture_a_substream &&
881 		    chip->capture_a_substream->runtime->channels != 1)
882 			return -EAGAIN;
883 		chip->playback_a_substream = substream;
884 	} else if (substream->number <= 1) {
885 		if (chip->capture_a_substream)
886 			return -EAGAIN;
887 		chip->playback_b_substream = substream;
888 	} else {
889 		snd_BUG();
890 		return -EINVAL;
891 	}
892 	substream->runtime->hw = snd_es18xx_playback;
893 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
894 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
895         return 0;
896 }
897 
898 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
899 {
900 	struct snd_pcm_runtime *runtime = substream->runtime;
901         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
902 
903         if (chip->playback_b_substream)
904                 return -EAGAIN;
905 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
906 	    chip->playback_a_substream &&
907 	    chip->playback_a_substream->runtime->channels != 1)
908 		return -EAGAIN;
909         chip->capture_a_substream = substream;
910 	substream->runtime->hw = snd_es18xx_capture;
911 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
912 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
913         return 0;
914 }
915 
916 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
917 {
918         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
919 
920 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
921 		chip->playback_a_substream = NULL;
922 	else
923 		chip->playback_b_substream = NULL;
924 
925 	snd_pcm_lib_free_pages(substream);
926 	return 0;
927 }
928 
929 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
930 {
931         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
932 
933         chip->capture_a_substream = NULL;
934 	snd_pcm_lib_free_pages(substream);
935         return 0;
936 }
937 
938 /*
939  *  MIXER part
940  */
941 
942 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
943 {
944 	static char *texts[8] = {
945 		"Mic", "Mic Master", "CD", "AOUT",
946 		"Mic1", "Mix", "Line", "Master"
947 	};
948 
949 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
950 	uinfo->count = 1;
951 	uinfo->value.enumerated.items = 8;
952 	if (uinfo->value.enumerated.item > 7)
953 		uinfo->value.enumerated.item = 7;
954 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
955 	return 0;
956 }
957 
958 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
959 {
960 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
961 	ucontrol->value.enumerated.item[0] = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
962 	return 0;
963 }
964 
965 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
966 {
967 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
968 	unsigned char val = ucontrol->value.enumerated.item[0];
969 
970 	if (val > 7)
971 		return -EINVAL;
972 	return snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val;
973 }
974 
975 static int snd_es18xx_info_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
976 {
977 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
978 	uinfo->count = 1;
979 	uinfo->value.integer.min = 0;
980 	uinfo->value.integer.max = 1;
981 	return 0;
982 }
983 
984 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
985 {
986 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
987 	unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
988 	ucontrol->value.integer.value[0] = !!(val & 8);
989 	return 0;
990 }
991 
992 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
993 {
994 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
995 	unsigned char oval, nval;
996 	int change;
997 	nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
998 	oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
999 	change = nval != oval;
1000 	if (change) {
1001 		snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1002 		snd_es18xx_mixer_write(chip, 0x50, nval);
1003 	}
1004 	return change;
1005 }
1006 
1007 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1008 {
1009 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1010 	uinfo->count = 2;
1011 	uinfo->value.integer.min = 0;
1012 	uinfo->value.integer.max = 63;
1013 	return 0;
1014 }
1015 
1016 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1017 {
1018 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1019 	ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1020 	ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1021 	return 0;
1022 }
1023 
1024 static int snd_es18xx_info_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1025 {
1026 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1027 	uinfo->count = 2;
1028 	uinfo->value.integer.min = 0;
1029 	uinfo->value.integer.max = 1;
1030 	return 0;
1031 }
1032 
1033 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1034 {
1035 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1036 	ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1037 	ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1038 	return 0;
1039 }
1040 
1041 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1042 {
1043 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1044 	chip->master_volume = NULL;
1045 	chip->master_switch = NULL;
1046 	chip->hw_volume = NULL;
1047 	chip->hw_switch = NULL;
1048 }
1049 
1050 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1051 			       unsigned char mask, unsigned char val)
1052 {
1053 	if (reg < 0xa0)
1054 		return snd_es18xx_mixer_bits(chip, reg, mask, val);
1055 	else
1056 		return snd_es18xx_bits(chip, reg, mask, val);
1057 }
1058 
1059 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1060 {
1061 	if (reg < 0xa0)
1062 		return snd_es18xx_mixer_read(chip, reg);
1063 	else
1064 		return snd_es18xx_read(chip, reg);
1065 }
1066 
1067 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, invert) \
1068 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1069   .info = snd_es18xx_info_single, \
1070   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1071   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1072 
1073 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1074 {
1075 	int mask = (kcontrol->private_value >> 16) & 0xff;
1076 
1077 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1078 	uinfo->count = 1;
1079 	uinfo->value.integer.min = 0;
1080 	uinfo->value.integer.max = mask;
1081 	return 0;
1082 }
1083 
1084 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1085 {
1086 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1087 	int reg = kcontrol->private_value & 0xff;
1088 	int shift = (kcontrol->private_value >> 8) & 0xff;
1089 	int mask = (kcontrol->private_value >> 16) & 0xff;
1090 	int invert = (kcontrol->private_value >> 24) & 0xff;
1091 	int val;
1092 
1093 	val = snd_es18xx_reg_read(chip, reg);
1094 	ucontrol->value.integer.value[0] = (val >> shift) & mask;
1095 	if (invert)
1096 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1097 	return 0;
1098 }
1099 
1100 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1101 {
1102 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1103 	int reg = kcontrol->private_value & 0xff;
1104 	int shift = (kcontrol->private_value >> 8) & 0xff;
1105 	int mask = (kcontrol->private_value >> 16) & 0xff;
1106 	int invert = (kcontrol->private_value >> 24) & 0xff;
1107 	unsigned char val;
1108 
1109 	val = (ucontrol->value.integer.value[0] & mask);
1110 	if (invert)
1111 		val = mask - val;
1112 	mask <<= shift;
1113 	val <<= shift;
1114 	return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1115 }
1116 
1117 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1118 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1119   .info = snd_es18xx_info_double, \
1120   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1121   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1122 
1123 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1124 {
1125 	int mask = (kcontrol->private_value >> 24) & 0xff;
1126 
1127 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1128 	uinfo->count = 2;
1129 	uinfo->value.integer.min = 0;
1130 	uinfo->value.integer.max = mask;
1131 	return 0;
1132 }
1133 
1134 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1135 {
1136 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1137 	int left_reg = kcontrol->private_value & 0xff;
1138 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1139 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1140 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1141 	int mask = (kcontrol->private_value >> 24) & 0xff;
1142 	int invert = (kcontrol->private_value >> 22) & 1;
1143 	unsigned char left, right;
1144 
1145 	left = snd_es18xx_reg_read(chip, left_reg);
1146 	if (left_reg != right_reg)
1147 		right = snd_es18xx_reg_read(chip, right_reg);
1148 	else
1149 		right = left;
1150 	ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1151 	ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1152 	if (invert) {
1153 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1154 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1155 	}
1156 	return 0;
1157 }
1158 
1159 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1160 {
1161 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1162 	int left_reg = kcontrol->private_value & 0xff;
1163 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1164 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1165 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1166 	int mask = (kcontrol->private_value >> 24) & 0xff;
1167 	int invert = (kcontrol->private_value >> 22) & 1;
1168 	int change;
1169 	unsigned char val1, val2, mask1, mask2;
1170 
1171 	val1 = ucontrol->value.integer.value[0] & mask;
1172 	val2 = ucontrol->value.integer.value[1] & mask;
1173 	if (invert) {
1174 		val1 = mask - val1;
1175 		val2 = mask - val2;
1176 	}
1177 	val1 <<= shift_left;
1178 	val2 <<= shift_right;
1179 	mask1 = mask << shift_left;
1180 	mask2 = mask << shift_right;
1181 	if (left_reg != right_reg) {
1182 		change = 0;
1183 		if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1184 			change = 1;
1185 		if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1186 			change = 1;
1187 	} else {
1188 		change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2,
1189 					      val1 | val2) != (val1 | val2));
1190 	}
1191 	return change;
1192 }
1193 
1194 static struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1195 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1196 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1197 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1198 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1199 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1200 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1201 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1202 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1203 ES18XX_SINGLE("PC Speaker Playback Volume", 0, 0x3c, 0, 7, 0),
1204 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1205 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1206 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1207 {
1208 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1209 	.name = "Capture Source",
1210 	.info = snd_es18xx_info_mux,
1211 	.get = snd_es18xx_get_mux,
1212 	.put = snd_es18xx_put_mux,
1213 }
1214 };
1215 
1216 static struct snd_kcontrol_new snd_es18xx_mono_in_control =
1217 ES18XX_DOUBLE("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0);
1218 
1219 static struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1220 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1221 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1222 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1223 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1224 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0),
1225 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1226 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1227 };
1228 
1229 static struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1230 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1231 };
1232 
1233 static struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1234 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1235 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1236 };
1237 
1238 static struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1239 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1240 {
1241 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1242 	.name = "3D Control - Switch",
1243 	.info = snd_es18xx_info_spatializer_enable,
1244 	.get = snd_es18xx_get_spatializer_enable,
1245 	.put = snd_es18xx_put_spatializer_enable,
1246 }
1247 };
1248 
1249 static struct snd_kcontrol_new snd_es18xx_micpre1_control =
1250 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1251 
1252 static struct snd_kcontrol_new snd_es18xx_micpre2_control =
1253 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1254 
1255 static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1256 {
1257 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1258 	.name = "Hardware Master Playback Volume",
1259 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1260 	.info = snd_es18xx_info_hw_volume,
1261 	.get = snd_es18xx_get_hw_volume,
1262 },
1263 {
1264 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1265 	.name = "Hardware Master Playback Switch",
1266 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1267 	.info = snd_es18xx_info_hw_switch,
1268 	.get = snd_es18xx_get_hw_switch,
1269 },
1270 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1271 };
1272 
1273 #if 0
1274 static int __devinit snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1275 {
1276 	int data;
1277 	unsigned long flags;
1278         spin_lock_irqsave(&chip->ctrl_lock, flags);
1279 	outb(reg, chip->ctrl_port);
1280 	data = inb(chip->ctrl_port + 1);
1281         spin_unlock_irqrestore(&chip->ctrl_lock, flags);
1282 	return data;
1283 }
1284 #endif
1285 
1286 static void __devinit snd_es18xx_config_write(struct snd_es18xx *chip,
1287 					      unsigned char reg, unsigned char data)
1288 {
1289 	/* No need for spinlocks, this function is used only in
1290 	   otherwise protected init code */
1291 	outb(reg, chip->ctrl_port);
1292 	outb(data, chip->ctrl_port + 1);
1293 #ifdef REG_DEBUG
1294 	snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1295 #endif
1296 }
1297 
1298 static int __devinit snd_es18xx_initialize(struct snd_es18xx *chip)
1299 {
1300 	int mask = 0;
1301 
1302         /* enable extended mode */
1303         snd_es18xx_dsp_command(chip, 0xC6);
1304 	/* Reset mixer registers */
1305 	snd_es18xx_mixer_write(chip, 0x00, 0x00);
1306 
1307         /* Audio 1 DMA demand mode (4 bytes/request) */
1308         snd_es18xx_write(chip, 0xB9, 2);
1309 	if (chip->caps & ES18XX_CONTROL) {
1310 		/* Hardware volume IRQ */
1311 		snd_es18xx_config_write(chip, 0x27, chip->irq);
1312 		if (chip->fm_port > 0 && chip->fm_port != SNDRV_AUTO_PORT) {
1313 			/* FM I/O */
1314 			snd_es18xx_config_write(chip, 0x62, chip->fm_port >> 8);
1315 			snd_es18xx_config_write(chip, 0x63, chip->fm_port & 0xff);
1316 		}
1317 		if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
1318 			/* MPU-401 I/O */
1319 			snd_es18xx_config_write(chip, 0x64, chip->mpu_port >> 8);
1320 			snd_es18xx_config_write(chip, 0x65, chip->mpu_port & 0xff);
1321 			/* MPU-401 IRQ */
1322 			snd_es18xx_config_write(chip, 0x28, chip->irq);
1323 		}
1324 		/* Audio1 IRQ */
1325 		snd_es18xx_config_write(chip, 0x70, chip->irq);
1326 		/* Audio2 IRQ */
1327 		snd_es18xx_config_write(chip, 0x72, chip->irq);
1328 		/* Audio1 DMA */
1329 		snd_es18xx_config_write(chip, 0x74, chip->dma1);
1330 		/* Audio2 DMA */
1331 		snd_es18xx_config_write(chip, 0x75, chip->dma2);
1332 
1333 		/* Enable Audio 1 IRQ */
1334 		snd_es18xx_write(chip, 0xB1, 0x50);
1335 		/* Enable Audio 2 IRQ */
1336 		snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1337 		/* Enable Audio 1 DMA */
1338 		snd_es18xx_write(chip, 0xB2, 0x50);
1339 		/* Enable MPU and hardware volume interrupt */
1340 		snd_es18xx_mixer_write(chip, 0x64, 0x42);
1341 	}
1342 	else {
1343 		int irqmask, dma1mask, dma2mask;
1344 		switch (chip->irq) {
1345 		case 2:
1346 		case 9:
1347 			irqmask = 0;
1348 			break;
1349 		case 5:
1350 			irqmask = 1;
1351 			break;
1352 		case 7:
1353 			irqmask = 2;
1354 			break;
1355 		case 10:
1356 			irqmask = 3;
1357 			break;
1358 		default:
1359 			snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1360 			return -ENODEV;
1361 		}
1362 		switch (chip->dma1) {
1363 		case 0:
1364 			dma1mask = 1;
1365 			break;
1366 		case 1:
1367 			dma1mask = 2;
1368 			break;
1369 		case 3:
1370 			dma1mask = 3;
1371 			break;
1372 		default:
1373 			snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1374 			return -ENODEV;
1375 		}
1376 		switch (chip->dma2) {
1377 		case 0:
1378 			dma2mask = 0;
1379 			break;
1380 		case 1:
1381 			dma2mask = 1;
1382 			break;
1383 		case 3:
1384 			dma2mask = 2;
1385 			break;
1386 		case 5:
1387 			dma2mask = 3;
1388 			break;
1389 		default:
1390 			snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1391 			return -ENODEV;
1392 		}
1393 
1394 		/* Enable and set Audio 1 IRQ */
1395 		snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1396 		/* Enable and set Audio 1 DMA */
1397 		snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1398 		/* Set Audio 2 DMA */
1399 		snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1400 		/* Enable Audio 2 IRQ and DMA
1401 		   Set capture mixer input */
1402 		snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1403 		/* Enable and set hardware volume interrupt */
1404 		snd_es18xx_mixer_write(chip, 0x64, 0x06);
1405 		if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
1406 			/* MPU401 share irq with audio
1407 			   Joystick enabled
1408 			   FM enabled */
1409 			snd_es18xx_mixer_write(chip, 0x40, 0x43 | (chip->mpu_port & 0xf0) >> 1);
1410 		}
1411 		snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1412 	}
1413 	if (chip->caps & ES18XX_NEW_RATE) {
1414 		/* Change behaviour of register A1
1415 		   4x oversampling
1416 		   2nd channel DAC asynchronous */
1417 		snd_es18xx_mixer_write(chip, 0x71, 0x32);
1418 	}
1419 	if (!(chip->caps & ES18XX_PCM2)) {
1420 		/* Enable DMA FIFO */
1421 		snd_es18xx_write(chip, 0xB7, 0x80);
1422 	}
1423 	if (chip->caps & ES18XX_SPATIALIZER) {
1424 		/* Set spatializer parameters to recommended values */
1425 		snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1426 		snd_es18xx_mixer_write(chip, 0x56, 0x95);
1427 		snd_es18xx_mixer_write(chip, 0x58, 0x94);
1428 		snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1429 	}
1430 	/* Mute input source */
1431 	if (chip->caps & ES18XX_MUTEREC)
1432 		mask = 0x10;
1433 	if (chip->caps & ES18XX_RECMIX)
1434 		snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1435 	else {
1436 		snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1437 		snd_es18xx_write(chip, 0xb4, 0x00);
1438 	}
1439 #ifndef AVOID_POPS
1440 	/* Enable PCM output */
1441 	snd_es18xx_dsp_command(chip, 0xD1);
1442 #endif
1443 
1444         return 0;
1445 }
1446 
1447 static int __devinit snd_es18xx_identify(struct snd_es18xx *chip)
1448 {
1449 	int hi,lo;
1450 
1451 	/* reset */
1452 	if (snd_es18xx_reset(chip) < 0) {
1453 		snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1454 		return -ENODEV;
1455 	}
1456 
1457 	snd_es18xx_dsp_command(chip, 0xe7);
1458 	hi = snd_es18xx_dsp_get_byte(chip);
1459 	if (hi < 0) {
1460 		return hi;
1461 	}
1462 	lo = snd_es18xx_dsp_get_byte(chip);
1463 	if ((lo & 0xf0) != 0x80) {
1464 		return -ENODEV;
1465 	}
1466 	if (hi == 0x48) {
1467 		chip->version = 0x488;
1468 		return 0;
1469 	}
1470 	if (hi != 0x68) {
1471 		return -ENODEV;
1472 	}
1473 	if ((lo & 0x0f) < 8) {
1474 		chip->version = 0x688;
1475 		return 0;
1476 	}
1477 
1478         outb(0x40, chip->port + 0x04);
1479 	hi = inb(chip->port + 0x05);
1480 	lo = inb(chip->port + 0x05);
1481 	if (hi != lo) {
1482 		chip->version = hi << 8 | lo;
1483 		chip->ctrl_port = inb(chip->port + 0x05) << 8;
1484 		chip->ctrl_port += inb(chip->port + 0x05);
1485 
1486 		if ((chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL")) == NULL) {
1487 			snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1488 			return -EBUSY;
1489 		}
1490 
1491 		return 0;
1492 	}
1493 
1494 	/* If has Hardware volume */
1495 	if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1496 		/* If has Audio2 */
1497 		if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1498 			/* If has volume count */
1499 			if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1500 				chip->version = 0x1887;
1501 			} else {
1502 				chip->version = 0x1888;
1503 			}
1504 		} else {
1505 			chip->version = 0x1788;
1506 		}
1507 	}
1508 	else
1509 		chip->version = 0x1688;
1510 	return 0;
1511 }
1512 
1513 static int __devinit snd_es18xx_probe(struct snd_es18xx *chip)
1514 {
1515 	if (snd_es18xx_identify(chip) < 0) {
1516 		snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1517                 return -ENODEV;
1518 	}
1519 
1520 	switch (chip->version) {
1521 	case 0x1868:
1522 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL | ES18XX_HWV;
1523 		break;
1524 	case 0x1869:
1525 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV;
1526 		break;
1527 	case 0x1878:
1528 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1529 		break;
1530 	case 0x1879:
1531 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1532 		break;
1533 	case 0x1887:
1534 		chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME | ES18XX_HWV;
1535 		break;
1536 	case 0x1888:
1537 		chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME | ES18XX_HWV;
1538 		break;
1539 	default:
1540 		snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1541                            chip->port, chip->version);
1542                 return -ENODEV;
1543         }
1544 
1545         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1546 
1547 	if (chip->dma1 == chip->dma2)
1548 		chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1549 
1550         return snd_es18xx_initialize(chip);
1551 }
1552 
1553 static struct snd_pcm_ops snd_es18xx_playback_ops = {
1554 	.open =		snd_es18xx_playback_open,
1555 	.close =	snd_es18xx_playback_close,
1556 	.ioctl =	snd_pcm_lib_ioctl,
1557 	.hw_params =	snd_es18xx_playback_hw_params,
1558 	.hw_free =	snd_es18xx_pcm_hw_free,
1559 	.prepare =	snd_es18xx_playback_prepare,
1560 	.trigger =	snd_es18xx_playback_trigger,
1561 	.pointer =	snd_es18xx_playback_pointer,
1562 };
1563 
1564 static struct snd_pcm_ops snd_es18xx_capture_ops = {
1565 	.open =		snd_es18xx_capture_open,
1566 	.close =	snd_es18xx_capture_close,
1567 	.ioctl =	snd_pcm_lib_ioctl,
1568 	.hw_params =	snd_es18xx_capture_hw_params,
1569 	.hw_free =	snd_es18xx_pcm_hw_free,
1570 	.prepare =	snd_es18xx_capture_prepare,
1571 	.trigger =	snd_es18xx_capture_trigger,
1572 	.pointer =	snd_es18xx_capture_pointer,
1573 };
1574 
1575 static int __devinit snd_es18xx_pcm(struct snd_es18xx *chip, int device, struct snd_pcm ** rpcm)
1576 {
1577         struct snd_pcm *pcm;
1578 	char str[16];
1579 	int err;
1580 
1581 	if (rpcm)
1582 		*rpcm = NULL;
1583 	sprintf(str, "ES%x", chip->version);
1584 	if (chip->caps & ES18XX_PCM2)
1585 		err = snd_pcm_new(chip->card, str, device, 2, 1, &pcm);
1586 	else
1587 		err = snd_pcm_new(chip->card, str, device, 1, 1, &pcm);
1588         if (err < 0)
1589                 return err;
1590 
1591 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1592 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1593 
1594 	/* global setup */
1595         pcm->private_data = chip;
1596         pcm->info_flags = 0;
1597 	if (chip->caps & ES18XX_DUPLEX_SAME)
1598 		pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1599 	if (! (chip->caps & ES18XX_PCM2))
1600 		pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1601 	sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1602         chip->pcm = pcm;
1603 
1604 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1605 					      snd_dma_isa_data(),
1606 					      64*1024,
1607 					      chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1608 
1609         if (rpcm)
1610         	*rpcm = pcm;
1611 	return 0;
1612 }
1613 
1614 /* Power Management support functions */
1615 #ifdef CONFIG_PM
1616 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1617 {
1618 	struct snd_audiodrive *acard = card->private_data;
1619 	struct snd_es18xx *chip = acard->chip;
1620 
1621 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1622 
1623 	snd_pcm_suspend_all(chip->pcm);
1624 
1625 	/* power down */
1626 	chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1627 	chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1628 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1629 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1630 
1631 	return 0;
1632 }
1633 
1634 static int snd_es18xx_resume(struct snd_card *card)
1635 {
1636 	struct snd_audiodrive *acard = card->private_data;
1637 	struct snd_es18xx *chip = acard->chip;
1638 
1639 	/* restore PM register, we won't wake till (not 0x07) i/o activity though */
1640 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1641 
1642 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1643 	return 0;
1644 }
1645 #endif /* CONFIG_PM */
1646 
1647 static int snd_es18xx_free(struct snd_es18xx *chip)
1648 {
1649 	release_and_free_resource(chip->res_port);
1650 	release_and_free_resource(chip->res_ctrl_port);
1651 	release_and_free_resource(chip->res_mpu_port);
1652 	if (chip->irq >= 0)
1653 		free_irq(chip->irq, (void *) chip);
1654 	if (chip->dma1 >= 0) {
1655 		disable_dma(chip->dma1);
1656 		free_dma(chip->dma1);
1657 	}
1658 	if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1659 		disable_dma(chip->dma2);
1660 		free_dma(chip->dma2);
1661 	}
1662 	kfree(chip);
1663 	return 0;
1664 }
1665 
1666 static int snd_es18xx_dev_free(struct snd_device *device)
1667 {
1668 	struct snd_es18xx *chip = device->device_data;
1669 	return snd_es18xx_free(chip);
1670 }
1671 
1672 static int __devinit snd_es18xx_new_device(struct snd_card *card,
1673 					   unsigned long port,
1674 					   unsigned long mpu_port,
1675 					   unsigned long fm_port,
1676 					   int irq, int dma1, int dma2,
1677 					   struct snd_es18xx ** rchip)
1678 {
1679         struct snd_es18xx *chip;
1680 	static struct snd_device_ops ops = {
1681 		.dev_free =	snd_es18xx_dev_free,
1682         };
1683 	int err;
1684 
1685 	*rchip = NULL;
1686         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1687 	if (chip == NULL)
1688 		return -ENOMEM;
1689 	spin_lock_init(&chip->reg_lock);
1690  	spin_lock_init(&chip->mixer_lock);
1691  	spin_lock_init(&chip->ctrl_lock);
1692         chip->card = card;
1693         chip->port = port;
1694         chip->mpu_port = mpu_port;
1695         chip->fm_port = fm_port;
1696         chip->irq = -1;
1697         chip->dma1 = -1;
1698         chip->dma2 = -1;
1699         chip->audio2_vol = 0x00;
1700 	chip->active = 0;
1701 
1702 	if ((chip->res_port = request_region(port, 16, "ES18xx")) == NULL) {
1703 		snd_es18xx_free(chip);
1704 		snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1705 		return -EBUSY;
1706 	}
1707 
1708 	if (request_irq(irq, snd_es18xx_interrupt, SA_INTERRUPT, "ES18xx", (void *) chip)) {
1709 		snd_es18xx_free(chip);
1710 		snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1711 		return -EBUSY;
1712 	}
1713 	chip->irq = irq;
1714 
1715 	if (request_dma(dma1, "ES18xx DMA 1")) {
1716 		snd_es18xx_free(chip);
1717 		snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1718 		return -EBUSY;
1719 	}
1720 	chip->dma1 = dma1;
1721 
1722 	if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1723 		snd_es18xx_free(chip);
1724 		snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1725 		return -EBUSY;
1726 	}
1727 	chip->dma2 = dma2;
1728 
1729         if (snd_es18xx_probe(chip) < 0) {
1730                 snd_es18xx_free(chip);
1731                 return -ENODEV;
1732         }
1733 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1734 		snd_es18xx_free(chip);
1735 		return err;
1736 	}
1737         *rchip = chip;
1738         return 0;
1739 }
1740 
1741 static int __devinit snd_es18xx_mixer(struct snd_es18xx *chip)
1742 {
1743 	struct snd_card *card;
1744 	int err;
1745 	unsigned int idx;
1746 
1747 	card = chip->card;
1748 
1749 	strcpy(card->mixername, chip->pcm->name);
1750 
1751 	for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1752 		struct snd_kcontrol *kctl;
1753 		kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1754 		if (chip->caps & ES18XX_HWV) {
1755 			switch (idx) {
1756 			case 0:
1757 				chip->master_volume = kctl;
1758 				kctl->private_free = snd_es18xx_hwv_free;
1759 				break;
1760 			case 1:
1761 				chip->master_switch = kctl;
1762 				kctl->private_free = snd_es18xx_hwv_free;
1763 				break;
1764 			}
1765 		}
1766 		if ((err = snd_ctl_add(card, kctl)) < 0)
1767 			return err;
1768 	}
1769 	if (chip->caps & ES18XX_PCM2) {
1770 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1771 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip))) < 0)
1772 				return err;
1773 		}
1774 	} else {
1775 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1776 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip))) < 0)
1777 				return err;
1778 		}
1779 	}
1780 
1781 	if (chip->caps & ES18XX_MONO) {
1782 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_mono_in_control, chip))) < 0)
1783 			return err;
1784 	}
1785 	if (chip->caps & ES18XX_RECMIX) {
1786 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1787 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip))) < 0)
1788 				return err;
1789 		}
1790 	}
1791 	switch (chip->version) {
1792 	default:
1793 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip))) < 0)
1794 			return err;
1795 		break;
1796 	case 0x1869:
1797 	case 0x1879:
1798 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip))) < 0)
1799 			return err;
1800 		break;
1801 	}
1802 	if (chip->caps & ES18XX_SPATIALIZER) {
1803 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1804 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip))) < 0)
1805 				return err;
1806 		}
1807 	}
1808 	if (chip->caps & ES18XX_HWV) {
1809 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1810 			struct snd_kcontrol *kctl;
1811 			kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1812 			if (idx == 0)
1813 				chip->hw_volume = kctl;
1814 			else
1815 				chip->hw_switch = kctl;
1816 			kctl->private_free = snd_es18xx_hwv_free;
1817 			if ((err = snd_ctl_add(card, kctl)) < 0)
1818 				return err;
1819 
1820 		}
1821 	}
1822 	return 0;
1823 }
1824 
1825 
1826 /* Card level */
1827 
1828 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");
1829 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1830 MODULE_LICENSE("GPL");
1831 MODULE_SUPPORTED_DEVICE("{{ESS,ES1868 PnP AudioDrive},"
1832 		"{ESS,ES1869 PnP AudioDrive},"
1833 		"{ESS,ES1878 PnP AudioDrive},"
1834 		"{ESS,ES1879 PnP AudioDrive},"
1835 		"{ESS,ES1887 PnP AudioDrive},"
1836 		"{ESS,ES1888 PnP AudioDrive},"
1837 		"{ESS,ES1887 AudioDrive},"
1838 		"{ESS,ES1888 AudioDrive}}");
1839 
1840 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
1841 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
1842 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1843 #ifdef CONFIG_PNP
1844 static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
1845 #endif
1846 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260,0x280 */
1847 #ifndef CONFIG_PNP
1848 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
1849 #else
1850 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1851 #endif
1852 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1853 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
1854 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
1855 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
1856 
1857 module_param_array(index, int, NULL, 0444);
1858 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
1859 module_param_array(id, charp, NULL, 0444);
1860 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
1861 module_param_array(enable, bool, NULL, 0444);
1862 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
1863 #ifdef CONFIG_PNP
1864 module_param_array(isapnp, bool, NULL, 0444);
1865 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
1866 #endif
1867 module_param_array(port, long, NULL, 0444);
1868 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
1869 module_param_array(mpu_port, long, NULL, 0444);
1870 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
1871 module_param_array(fm_port, long, NULL, 0444);
1872 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
1873 module_param_array(irq, int, NULL, 0444);
1874 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
1875 module_param_array(dma1, int, NULL, 0444);
1876 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
1877 module_param_array(dma2, int, NULL, 0444);
1878 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
1879 
1880 static struct platform_device *platform_devices[SNDRV_CARDS];
1881 static int pnp_registered;
1882 
1883 #ifdef CONFIG_PNP
1884 
1885 static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
1886 	/* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
1887 	{ .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
1888 	/* ESS 1868 (integrated on Maxisound Cards) */
1889 	{ .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
1890 	/* ESS 1868 (integrated on Maxisound Cards) */
1891 	{ .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
1892 	/* ESS ES1869 Plug and Play AudioDrive */
1893 	{ .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
1894 	/* ESS 1869 */
1895 	{ .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
1896 	/* ESS 1878 */
1897 	{ .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
1898 	/* ESS 1879 */
1899 	{ .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
1900 	/* --- */
1901 	{ .id = "" } /* end */
1902 };
1903 
1904 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
1905 
1906 static int __devinit snd_audiodrive_pnp(int dev, struct snd_audiodrive *acard,
1907 					struct pnp_card_link *card,
1908 					const struct pnp_card_device_id *id)
1909 {
1910 	struct pnp_dev *pdev;
1911 	struct pnp_resource_table * cfg = kmalloc(sizeof(struct pnp_resource_table), GFP_KERNEL);
1912 	int err;
1913 
1914 	if (!cfg)
1915 		return -ENOMEM;
1916 	acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
1917 	if (acard->dev == NULL) {
1918 		kfree(cfg);
1919 		return -EBUSY;
1920 	}
1921 	acard->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
1922 	if (acard->devc == NULL) {
1923 		kfree(cfg);
1924 		return -EBUSY;
1925 	}
1926 	/* Control port initialization */
1927 	err = pnp_activate_dev(acard->devc);
1928 	if (err < 0) {
1929 		snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
1930 		return -EAGAIN;
1931 	}
1932 	snd_printdd("pnp: port=0x%lx\n", pnp_port_start(acard->devc, 0));
1933 	/* PnP initialization */
1934 	pdev = acard->dev;
1935 	pnp_init_resource_table(cfg);
1936 	if (port[dev] != SNDRV_AUTO_PORT)
1937 		pnp_resource_change(&cfg->port_resource[0], port[dev], 16);
1938 	if (fm_port[dev] != SNDRV_AUTO_PORT)
1939 		pnp_resource_change(&cfg->port_resource[1], fm_port[dev], 4);
1940 	if (mpu_port[dev] != SNDRV_AUTO_PORT)
1941 		pnp_resource_change(&cfg->port_resource[2], mpu_port[dev], 2);
1942 	if (dma1[dev] != SNDRV_AUTO_DMA)
1943 		pnp_resource_change(&cfg->dma_resource[0], dma1[dev], 1);
1944 	if (dma2[dev] != SNDRV_AUTO_DMA)
1945 		pnp_resource_change(&cfg->dma_resource[1], dma2[dev], 1);
1946 	if (irq[dev] != SNDRV_AUTO_IRQ)
1947 		pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
1948 	err = pnp_manual_config_dev(pdev, cfg, 0);
1949 	if (err < 0)
1950 		snd_printk(KERN_ERR PFX "PnP manual resources are invalid, using auto config\n");
1951 	err = pnp_activate_dev(pdev);
1952 	if (err < 0) {
1953 		snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
1954 		kfree(cfg);
1955 		return -EBUSY;
1956 	}
1957 	/* ok. hack using Vendor-Defined Card-Level registers */
1958 	/* skip csn and logdev initialization - already done in isapnp_configure */
1959 	if (pnp_device_is_isapnp(pdev)) {
1960 		isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
1961 		isapnp_write_byte(0x27, pnp_irq(pdev, 0));	/* Hardware Volume IRQ Number */
1962 		if (mpu_port[dev] != SNDRV_AUTO_PORT)
1963 			isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
1964 		isapnp_write_byte(0x72, pnp_irq(pdev, 0));	/* second IRQ */
1965 		isapnp_cfg_end();
1966 	} else {
1967 		snd_printk(KERN_ERR PFX "unable to install ISA PnP hack, expect malfunction\n");
1968 	}
1969 	port[dev] = pnp_port_start(pdev, 0);
1970 	fm_port[dev] = pnp_port_start(pdev, 1);
1971 	mpu_port[dev] = pnp_port_start(pdev, 2);
1972 	dma1[dev] = pnp_dma(pdev, 0);
1973 	dma2[dev] = pnp_dma(pdev, 1);
1974 	irq[dev] = pnp_irq(pdev, 0);
1975 	snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
1976 	snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
1977 	kfree(cfg);
1978 	return 0;
1979 }
1980 #endif /* CONFIG_PNP */
1981 
1982 #ifdef CONFIG_PNP
1983 #define is_isapnp_selected(dev)		isapnp[dev]
1984 #else
1985 #define is_isapnp_selected(dev)		0
1986 #endif
1987 
1988 static struct snd_card *snd_es18xx_card_new(int dev)
1989 {
1990 	return snd_card_new(index[dev], id[dev], THIS_MODULE,
1991 			    sizeof(struct snd_audiodrive));
1992 }
1993 
1994 static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev)
1995 {
1996 	struct snd_audiodrive *acard = card->private_data;
1997 	struct snd_es18xx *chip;
1998 	struct snd_opl3 *opl3;
1999 	int err;
2000 
2001 	if ((err = snd_es18xx_new_device(card,
2002 					 port[dev],
2003 					 mpu_port[dev],
2004 					 fm_port[dev],
2005 					 irq[dev], dma1[dev], dma2[dev],
2006 					 &chip)) < 0)
2007 		return err;
2008 	acard->chip = chip;
2009 
2010 	sprintf(card->driver, "ES%x", chip->version);
2011 
2012 	sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2013 	if (dma1[dev] != dma2[dev])
2014 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2015 			card->shortname,
2016 			chip->port,
2017 			irq[dev], dma1[dev], dma2[dev]);
2018 	else
2019 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2020 			card->shortname,
2021 			chip->port,
2022 			irq[dev], dma1[dev]);
2023 
2024 	if ((err = snd_es18xx_pcm(chip, 0, NULL)) < 0)
2025 		return err;
2026 
2027 	if ((err = snd_es18xx_mixer(chip)) < 0)
2028 		return err;
2029 
2030 	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2031 		if (snd_opl3_create(card, chip->fm_port, chip->fm_port + 2, OPL3_HW_OPL3, 0, &opl3) < 0) {
2032 			snd_printk(KERN_WARNING PFX "opl3 not detected at 0x%lx\n", chip->fm_port);
2033 		} else {
2034 			if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
2035 				return err;
2036 		}
2037 	}
2038 
2039 	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2040 		if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2041 					       chip->mpu_port, 0,
2042 					       irq[dev], 0,
2043 					       &chip->rmidi)) < 0)
2044 			return err;
2045 	}
2046 
2047 	return snd_card_register(card);
2048 }
2049 
2050 static int __init snd_es18xx_nonpnp_probe1(int dev, struct platform_device *devptr)
2051 {
2052 	struct snd_card *card;
2053 	int err;
2054 
2055 	card = snd_es18xx_card_new(dev);
2056 	if (! card)
2057 		return -ENOMEM;
2058 	snd_card_set_dev(card, &devptr->dev);
2059 	if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2060 		snd_card_free(card);
2061 		return err;
2062 	}
2063 	platform_set_drvdata(devptr, card);
2064 	return 0;
2065 }
2066 
2067 static int __init snd_es18xx_nonpnp_probe(struct platform_device *pdev)
2068 {
2069 	int dev = pdev->id;
2070 	int err;
2071 	static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2072 	static int possible_dmas[] = {1, 0, 3, 5, -1};
2073 
2074 	if (irq[dev] == SNDRV_AUTO_IRQ) {
2075 		if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
2076 			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2077 			return -EBUSY;
2078 		}
2079 	}
2080 	if (dma1[dev] == SNDRV_AUTO_DMA) {
2081 		if ((dma1[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2082 			snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2083 			return -EBUSY;
2084 		}
2085 	}
2086 	if (dma2[dev] == SNDRV_AUTO_DMA) {
2087 		if ((dma2[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2088 			snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2089 			return -EBUSY;
2090 		}
2091 	}
2092 
2093 	if (port[dev] != SNDRV_AUTO_PORT) {
2094 		return snd_es18xx_nonpnp_probe1(dev, pdev);
2095 	} else {
2096 		static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2097 		int i;
2098 		for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2099 			port[dev] = possible_ports[i];
2100 			err = snd_es18xx_nonpnp_probe1(dev, pdev);
2101 			if (! err)
2102 				return 0;
2103 		}
2104 		return err;
2105 	}
2106 }
2107 
2108 static int __devexit snd_es18xx_nonpnp_remove(struct platform_device *devptr)
2109 {
2110 	snd_card_free(platform_get_drvdata(devptr));
2111 	platform_set_drvdata(devptr, NULL);
2112 	return 0;
2113 }
2114 
2115 #ifdef CONFIG_PM
2116 static int snd_es18xx_nonpnp_suspend(struct platform_device *dev, pm_message_t state)
2117 {
2118 	return snd_es18xx_suspend(platform_get_drvdata(dev), state);
2119 }
2120 
2121 static int snd_es18xx_nonpnp_resume(struct platform_device *dev)
2122 {
2123 	return snd_es18xx_resume(platform_get_drvdata(dev));
2124 }
2125 #endif
2126 
2127 #define ES18XX_DRIVER	"snd_es18xx"
2128 
2129 static struct platform_driver snd_es18xx_nonpnp_driver = {
2130 	.probe		= snd_es18xx_nonpnp_probe,
2131 	.remove		= __devexit_p(snd_es18xx_nonpnp_remove),
2132 #ifdef CONFIG_PM
2133 	.suspend	= snd_es18xx_nonpnp_suspend,
2134 	.resume		= snd_es18xx_nonpnp_resume,
2135 #endif
2136 	.driver		= {
2137 		.name	= ES18XX_DRIVER
2138 	},
2139 };
2140 
2141 
2142 #ifdef CONFIG_PNP
2143 static int __devinit snd_audiodrive_pnp_detect(struct pnp_card_link *pcard,
2144 					       const struct pnp_card_device_id *pid)
2145 {
2146 	static int dev;
2147 	struct snd_card *card;
2148 	int res;
2149 
2150 	for ( ; dev < SNDRV_CARDS; dev++) {
2151 		if (enable[dev] && isapnp[dev])
2152 			break;
2153 	}
2154 	if (dev >= SNDRV_CARDS)
2155 		return -ENODEV;
2156 
2157 	card = snd_es18xx_card_new(dev);
2158 	if (! card)
2159 		return -ENOMEM;
2160 
2161 	if ((res = snd_audiodrive_pnp(dev, card->private_data, pcard, pid)) < 0) {
2162 		snd_card_free(card);
2163 		return res;
2164 	}
2165 	snd_card_set_dev(card, &pcard->card->dev);
2166 	if ((res = snd_audiodrive_probe(card, dev)) < 0) {
2167 		snd_card_free(card);
2168 		return res;
2169 	}
2170 
2171 	pnp_set_card_drvdata(pcard, card);
2172 	dev++;
2173 	return 0;
2174 }
2175 
2176 static void __devexit snd_audiodrive_pnp_remove(struct pnp_card_link * pcard)
2177 {
2178 	snd_card_free(pnp_get_card_drvdata(pcard));
2179 	pnp_set_card_drvdata(pcard, NULL);
2180 }
2181 
2182 #ifdef CONFIG_PM
2183 static int snd_audiodrive_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
2184 {
2185 	return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2186 }
2187 
2188 static int snd_audiodrive_pnp_resume(struct pnp_card_link *pcard)
2189 {
2190 	return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2191 }
2192 
2193 #endif
2194 
2195 static struct pnp_card_driver es18xx_pnpc_driver = {
2196 	.flags = PNP_DRIVER_RES_DISABLE,
2197 	.name = "es18xx",
2198 	.id_table = snd_audiodrive_pnpids,
2199 	.probe = snd_audiodrive_pnp_detect,
2200 	.remove = __devexit_p(snd_audiodrive_pnp_remove),
2201 #ifdef CONFIG_PM
2202 	.suspend	= snd_audiodrive_pnp_suspend,
2203 	.resume		= snd_audiodrive_pnp_resume,
2204 #endif
2205 };
2206 #endif /* CONFIG_PNP */
2207 
2208 static void __init_or_module snd_es18xx_unregister_all(void)
2209 {
2210 	int i;
2211 
2212 	if (pnp_registered)
2213 		pnp_unregister_card_driver(&es18xx_pnpc_driver);
2214 	for (i = 0; i < ARRAY_SIZE(platform_devices); ++i)
2215 		platform_device_unregister(platform_devices[i]);
2216 	platform_driver_unregister(&snd_es18xx_nonpnp_driver);
2217 }
2218 
2219 static int __init alsa_card_es18xx_init(void)
2220 {
2221 	int i, err, cards = 0;
2222 
2223 	if ((err = platform_driver_register(&snd_es18xx_nonpnp_driver)) < 0)
2224 		return err;
2225 
2226 	for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
2227 		struct platform_device *device;
2228 		if (is_isapnp_selected(i))
2229 			continue;
2230 		device = platform_device_register_simple(ES18XX_DRIVER,
2231 							 i, NULL, 0);
2232 		if (IS_ERR(device)) {
2233 			err = PTR_ERR(device);
2234 			goto errout;
2235 		}
2236 		platform_devices[i] = device;
2237 		cards++;
2238 	}
2239 
2240 	i = pnp_register_card_driver(&es18xx_pnpc_driver);
2241 	if (i >= 0) {
2242 		pnp_registered = 1;
2243 		cards += i;
2244 	}
2245 
2246 	if(!cards) {
2247 #ifdef MODULE
2248 		snd_printk(KERN_ERR "ESS AudioDrive ES18xx soundcard not found or device busy\n");
2249 #endif
2250 		err = -ENODEV;
2251 		goto errout;
2252 	}
2253 	return 0;
2254 
2255  errout:
2256 	snd_es18xx_unregister_all();
2257 	return err;
2258 }
2259 
2260 static void __exit alsa_card_es18xx_exit(void)
2261 {
2262 	snd_es18xx_unregister_all();
2263 }
2264 
2265 module_init(alsa_card_es18xx_init)
2266 module_exit(alsa_card_es18xx_exit)
2267