xref: /openbmc/linux/sound/isa/es18xx.c (revision 9d56dd3b083a3bec56e9da35ce07baca81030b03)
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 <linux/init.h>
81 #include <linux/err.h>
82 #include <linux/isa.h>
83 #include <linux/slab.h>
84 #include <linux/pnp.h>
85 #include <linux/isapnp.h>
86 #include <linux/moduleparam.h>
87 #include <linux/delay.h>
88 
89 #include <asm/io.h>
90 #include <asm/dma.h>
91 #include <sound/core.h>
92 #include <sound/control.h>
93 #include <sound/pcm.h>
94 #include <sound/pcm_params.h>
95 #include <sound/mpu401.h>
96 #include <sound/opl3.h>
97 #define SNDRV_LEGACY_FIND_FREE_IRQ
98 #define SNDRV_LEGACY_FIND_FREE_DMA
99 #include <sound/initval.h>
100 
101 #define PFX "es18xx: "
102 
103 struct snd_es18xx {
104 	unsigned long port;		/* port of ESS chip */
105 	unsigned long ctrl_port;	/* Control port of ESS chip */
106 	struct resource *res_port;
107 	struct resource *res_mpu_port;
108 	struct resource *res_ctrl_port;
109 	int irq;			/* IRQ number of ESS chip */
110 	int dma1;			/* DMA1 */
111 	int dma2;			/* DMA2 */
112 	unsigned short version;		/* version of ESS chip */
113 	int caps;			/* Chip capabilities */
114 	unsigned short audio2_vol;	/* volume level of audio2 */
115 
116 	unsigned short active;		/* active channel mask */
117 	unsigned int dma1_shift;
118 	unsigned int dma2_shift;
119 
120 	struct snd_pcm *pcm;
121 	struct snd_pcm_substream *playback_a_substream;
122 	struct snd_pcm_substream *capture_a_substream;
123 	struct snd_pcm_substream *playback_b_substream;
124 
125 	struct snd_rawmidi *rmidi;
126 
127 	struct snd_kcontrol *hw_volume;
128 	struct snd_kcontrol *hw_switch;
129 	struct snd_kcontrol *master_volume;
130 	struct snd_kcontrol *master_switch;
131 
132 	spinlock_t reg_lock;
133 	spinlock_t mixer_lock;
134 #ifdef CONFIG_PM
135 	unsigned char pm_reg;
136 #endif
137 #ifdef CONFIG_PNP
138 	struct pnp_dev *dev;
139 	struct pnp_dev *devc;
140 #endif
141 };
142 
143 #define AUDIO1_IRQ	0x01
144 #define AUDIO2_IRQ	0x02
145 #define HWV_IRQ		0x04
146 #define MPU_IRQ		0x08
147 
148 #define ES18XX_PCM2	0x0001	/* Has two useable PCM */
149 #define ES18XX_SPATIALIZER 0x0002	/* Has 3D Spatializer */
150 #define ES18XX_RECMIX	0x0004	/* Has record mixer */
151 #define ES18XX_DUPLEX_MONO 0x0008	/* Has mono duplex only */
152 #define ES18XX_DUPLEX_SAME 0x0010	/* Playback and record must share the same rate */
153 #define ES18XX_NEW_RATE	0x0020	/* More precise rate setting */
154 #define ES18XX_AUXB	0x0040	/* AuxB mixer control */
155 #define ES18XX_HWV	0x0080	/* Has separate hardware volume mixer controls*/
156 #define ES18XX_MONO	0x0100	/* Mono_in mixer control */
157 #define ES18XX_I2S	0x0200	/* I2S mixer control */
158 #define ES18XX_MUTEREC	0x0400	/* Record source can be muted */
159 #define ES18XX_CONTROL	0x0800	/* Has control ports */
160 
161 /* Power Management */
162 #define ES18XX_PM	0x07
163 #define ES18XX_PM_GPO0	0x01
164 #define ES18XX_PM_GPO1	0x02
165 #define ES18XX_PM_PDR	0x04
166 #define ES18XX_PM_ANA	0x08
167 #define ES18XX_PM_FM	0x020
168 #define ES18XX_PM_SUS	0x080
169 
170 /* Lowlevel */
171 
172 #define DAC1 0x01
173 #define ADC1 0x02
174 #define DAC2 0x04
175 #define MILLISECOND 10000
176 
177 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
178 {
179         int i;
180 
181         for(i = MILLISECOND; i; i--)
182                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
183                         outb(val, chip->port + 0x0C);
184                         return 0;
185                 }
186 	snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
187         return -EINVAL;
188 }
189 
190 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
191 {
192         int i;
193 
194         for(i = MILLISECOND/10; i; i--)
195                 if (inb(chip->port + 0x0C) & 0x40)
196                         return inb(chip->port + 0x0A);
197 	snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
198 		   chip->port + 0x0A, inb(chip->port + 0x0A));
199         return -ENODEV;
200 }
201 
202 #undef REG_DEBUG
203 
204 static int snd_es18xx_write(struct snd_es18xx *chip,
205 			    unsigned char reg, unsigned char data)
206 {
207 	unsigned long flags;
208 	int ret;
209 
210         spin_lock_irqsave(&chip->reg_lock, flags);
211 	ret = snd_es18xx_dsp_command(chip, reg);
212 	if (ret < 0)
213 		goto end;
214         ret = snd_es18xx_dsp_command(chip, data);
215  end:
216         spin_unlock_irqrestore(&chip->reg_lock, flags);
217 #ifdef REG_DEBUG
218 	snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
219 #endif
220 	return ret;
221 }
222 
223 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
224 {
225 	unsigned long flags;
226 	int ret, data;
227         spin_lock_irqsave(&chip->reg_lock, flags);
228 	ret = snd_es18xx_dsp_command(chip, 0xC0);
229 	if (ret < 0)
230 		goto end;
231         ret = snd_es18xx_dsp_command(chip, reg);
232 	if (ret < 0)
233 		goto end;
234 	data = snd_es18xx_dsp_get_byte(chip);
235 	ret = data;
236 #ifdef REG_DEBUG
237 	snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
238 #endif
239  end:
240         spin_unlock_irqrestore(&chip->reg_lock, flags);
241 	return ret;
242 }
243 
244 /* Return old value */
245 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
246 			   unsigned char mask, unsigned char val)
247 {
248         int ret;
249 	unsigned char old, new, oval;
250 	unsigned long flags;
251         spin_lock_irqsave(&chip->reg_lock, flags);
252         ret = snd_es18xx_dsp_command(chip, 0xC0);
253 	if (ret < 0)
254 		goto end;
255         ret = snd_es18xx_dsp_command(chip, reg);
256 	if (ret < 0)
257 		goto end;
258 	ret = snd_es18xx_dsp_get_byte(chip);
259 	if (ret < 0) {
260 		goto end;
261 	}
262 	old = ret;
263 	oval = old & mask;
264 	if (val != oval) {
265 		ret = snd_es18xx_dsp_command(chip, reg);
266 		if (ret < 0)
267 			goto end;
268 		new = (old & ~mask) | (val & mask);
269 		ret = snd_es18xx_dsp_command(chip, new);
270 		if (ret < 0)
271 			goto end;
272 #ifdef REG_DEBUG
273 		snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
274 			   reg, old, new, ret);
275 #endif
276 	}
277 	ret = oval;
278  end:
279         spin_unlock_irqrestore(&chip->reg_lock, flags);
280 	return ret;
281 }
282 
283 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
284 			    unsigned char reg, unsigned char data)
285 {
286 	unsigned long flags;
287         spin_lock_irqsave(&chip->mixer_lock, flags);
288         outb(reg, chip->port + 0x04);
289         outb(data, chip->port + 0x05);
290         spin_unlock_irqrestore(&chip->mixer_lock, flags);
291 #ifdef REG_DEBUG
292 	snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
293 #endif
294 }
295 
296 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
297 {
298 	unsigned long flags;
299 	int data;
300         spin_lock_irqsave(&chip->mixer_lock, flags);
301         outb(reg, chip->port + 0x04);
302 	data = inb(chip->port + 0x05);
303         spin_unlock_irqrestore(&chip->mixer_lock, flags);
304 #ifdef REG_DEBUG
305 	snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
306 #endif
307         return data;
308 }
309 
310 /* Return old value */
311 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
312 					unsigned char mask, unsigned char val)
313 {
314 	unsigned char old, new, oval;
315 	unsigned long flags;
316         spin_lock_irqsave(&chip->mixer_lock, flags);
317         outb(reg, chip->port + 0x04);
318 	old = inb(chip->port + 0x05);
319 	oval = old & mask;
320 	if (val != oval) {
321 		new = (old & ~mask) | (val & mask);
322 		outb(new, chip->port + 0x05);
323 #ifdef REG_DEBUG
324 		snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
325 			   reg, old, new);
326 #endif
327 	}
328         spin_unlock_irqrestore(&chip->mixer_lock, flags);
329 	return oval;
330 }
331 
332 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
333 					    unsigned char mask)
334 {
335 	int old, expected, new;
336 	unsigned long flags;
337         spin_lock_irqsave(&chip->mixer_lock, flags);
338         outb(reg, chip->port + 0x04);
339 	old = inb(chip->port + 0x05);
340 	expected = old ^ mask;
341 	outb(expected, chip->port + 0x05);
342 	new = inb(chip->port + 0x05);
343         spin_unlock_irqrestore(&chip->mixer_lock, flags);
344 #ifdef REG_DEBUG
345 	snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
346 		   reg, old, expected, new);
347 #endif
348 	return expected == new;
349 }
350 
351 
352 static int __devinit snd_es18xx_reset(struct snd_es18xx *chip)
353 {
354 	int i;
355         outb(0x03, chip->port + 0x06);
356         inb(chip->port + 0x06);
357         outb(0x00, chip->port + 0x06);
358         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
359         if (inb(chip->port + 0x0A) != 0xAA)
360                 return -1;
361 	return 0;
362 }
363 
364 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
365 {
366         outb(0x02, chip->port + 0x06);
367         inb(chip->port + 0x06);
368         outb(0x00, chip->port + 0x06);
369 	return 0;
370 }
371 
372 static struct snd_ratnum new_clocks[2] = {
373 	{
374 		.num = 793800,
375 		.den_min = 1,
376 		.den_max = 128,
377 		.den_step = 1,
378 	},
379 	{
380 		.num = 768000,
381 		.den_min = 1,
382 		.den_max = 128,
383 		.den_step = 1,
384 	}
385 };
386 
387 static struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
388 	.nrats = 2,
389 	.rats = new_clocks,
390 };
391 
392 static struct snd_ratnum old_clocks[2] = {
393 	{
394 		.num = 795444,
395 		.den_min = 1,
396 		.den_max = 128,
397 		.den_step = 1,
398 	},
399 	{
400 		.num = 397722,
401 		.den_min = 1,
402 		.den_max = 128,
403 		.den_step = 1,
404 	}
405 };
406 
407 static struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
408 	.nrats = 2,
409 	.rats = old_clocks,
410 };
411 
412 
413 static void snd_es18xx_rate_set(struct snd_es18xx *chip,
414 				struct snd_pcm_substream *substream,
415 				int mode)
416 {
417 	unsigned int bits, div0;
418 	struct snd_pcm_runtime *runtime = substream->runtime;
419 	if (chip->caps & ES18XX_NEW_RATE) {
420 		if (runtime->rate_num == new_clocks[0].num)
421 			bits = 128 - runtime->rate_den;
422 		else
423 			bits = 256 - runtime->rate_den;
424 	} else {
425 		if (runtime->rate_num == old_clocks[0].num)
426 			bits = 256 - runtime->rate_den;
427 		else
428 			bits = 128 - runtime->rate_den;
429 	}
430 
431 	/* set filter register */
432 	div0 = 256 - 7160000*20/(8*82*runtime->rate);
433 
434 	if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
435 		snd_es18xx_mixer_write(chip, 0x70, bits);
436 		/*
437 		 * Comment from kernel oss driver:
438 		 * FKS: fascinating: 0x72 doesn't seem to work.
439 		 */
440 		snd_es18xx_write(chip, 0xA2, div0);
441 		snd_es18xx_mixer_write(chip, 0x72, div0);
442 	} else {
443 		snd_es18xx_write(chip, 0xA1, bits);
444 		snd_es18xx_write(chip, 0xA2, div0);
445 	}
446 }
447 
448 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
449 					 struct snd_pcm_hw_params *hw_params)
450 {
451 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
452 	int shift, err;
453 
454 	shift = 0;
455 	if (params_channels(hw_params) == 2)
456 		shift++;
457 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
458 		shift++;
459 
460 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
461 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
462 		    (chip->capture_a_substream) &&
463 		    params_channels(hw_params) != 1) {
464 			_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
465 			return -EBUSY;
466 		}
467 		chip->dma2_shift = shift;
468 	} else {
469 		chip->dma1_shift = shift;
470 	}
471 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
472 		return err;
473 	return 0;
474 }
475 
476 static int snd_es18xx_pcm_hw_free(struct snd_pcm_substream *substream)
477 {
478 	return snd_pcm_lib_free_pages(substream);
479 }
480 
481 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
482 					struct snd_pcm_substream *substream)
483 {
484 	struct snd_pcm_runtime *runtime = substream->runtime;
485 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
486 	unsigned int count = snd_pcm_lib_period_bytes(substream);
487 
488         snd_es18xx_rate_set(chip, substream, DAC2);
489 
490         /* Transfer Count Reload */
491         count = 0x10000 - count;
492         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
493         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
494 
495 	/* Set format */
496         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
497 			      ((runtime->channels == 1) ? 0x00 : 0x02) |
498 			      (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
499 			      (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
500 
501         /* Set DMA controller */
502         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
503 
504 	return 0;
505 }
506 
507 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
508 					struct snd_pcm_substream *substream,
509 					int cmd)
510 {
511 	switch (cmd) {
512 	case SNDRV_PCM_TRIGGER_START:
513 	case SNDRV_PCM_TRIGGER_RESUME:
514 		if (chip->active & DAC2)
515 			return 0;
516 		chip->active |= DAC2;
517                 /* Start DMA */
518 		if (chip->dma2 >= 4)
519 			snd_es18xx_mixer_write(chip, 0x78, 0xb3);
520 		else
521 			snd_es18xx_mixer_write(chip, 0x78, 0x93);
522 #ifdef AVOID_POPS
523 		/* Avoid pops */
524                 udelay(100000);
525 		if (chip->caps & ES18XX_PCM2)
526 			/* Restore Audio 2 volume */
527 			snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
528 		else
529 			/* Enable PCM output */
530 			snd_es18xx_dsp_command(chip, 0xD1);
531 #endif
532 		break;
533 	case SNDRV_PCM_TRIGGER_STOP:
534 	case SNDRV_PCM_TRIGGER_SUSPEND:
535 		if (!(chip->active & DAC2))
536 			return 0;
537 		chip->active &= ~DAC2;
538                 /* Stop DMA */
539                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
540 #ifdef AVOID_POPS
541                 udelay(25000);
542 		if (chip->caps & ES18XX_PCM2)
543 			/* Set Audio 2 volume to 0 */
544 			snd_es18xx_mixer_write(chip, 0x7C, 0);
545 		else
546 			/* Disable PCM output */
547 			snd_es18xx_dsp_command(chip, 0xD3);
548 #endif
549 		break;
550 	default:
551 		return -EINVAL;
552 	}
553 
554 	return 0;
555 }
556 
557 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
558 					struct snd_pcm_hw_params *hw_params)
559 {
560 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
561 	int shift, err;
562 
563 	shift = 0;
564 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
565 	    chip->playback_a_substream &&
566 	    params_channels(hw_params) != 1) {
567 		_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
568 		return -EBUSY;
569 	}
570 	if (params_channels(hw_params) == 2)
571 		shift++;
572 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
573 		shift++;
574 	chip->dma1_shift = shift;
575 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
576 		return err;
577 	return 0;
578 }
579 
580 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
581 {
582         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
583 	struct snd_pcm_runtime *runtime = substream->runtime;
584 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
585 	unsigned int count = snd_pcm_lib_period_bytes(substream);
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 controller */
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 	snd_es18xx_reset_fifo(chip);
654 
655         /* Set stereo/mono */
656         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
657 
658         snd_es18xx_rate_set(chip, substream, DAC1);
659 
660         /* Transfer Count Reload */
661 	count = 0x10000 - count;
662 	snd_es18xx_write(chip, 0xA4, count & 0xff);
663 	snd_es18xx_write(chip, 0xA5, count >> 8);
664 
665         /* Set format */
666         snd_es18xx_write(chip, 0xB6,
667                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
668         snd_es18xx_write(chip, 0xB7,
669                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
670         snd_es18xx_write(chip, 0xB7, 0x90 |
671                          (runtime->channels == 1 ? 0x40 : 0x08) |
672                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
673                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
674 
675         /* Set DMA controller */
676         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
677 
678 	return 0;
679 }
680 
681 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
682 					struct snd_pcm_substream *substream,
683 					int cmd)
684 {
685 	switch (cmd) {
686 	case SNDRV_PCM_TRIGGER_START:
687 	case SNDRV_PCM_TRIGGER_RESUME:
688 		if (chip->active & DAC1)
689 			return 0;
690 		chip->active |= DAC1;
691                 /* Start DMA */
692                 snd_es18xx_write(chip, 0xB8, 0x05);
693 #ifdef AVOID_POPS
694 		/* Avoid pops */
695                 udelay(100000);
696                 /* Enable Audio 1 */
697                 snd_es18xx_dsp_command(chip, 0xD1);
698 #endif
699 		break;
700 	case SNDRV_PCM_TRIGGER_STOP:
701 	case SNDRV_PCM_TRIGGER_SUSPEND:
702 		if (!(chip->active & DAC1))
703 			return 0;
704 		chip->active &= ~DAC1;
705                 /* Stop DMA */
706                 snd_es18xx_write(chip, 0xB8, 0x00);
707 #ifdef AVOID_POPS
708 		/* Avoid pops */
709                 udelay(25000);
710                 /* Disable Audio 1 */
711                 snd_es18xx_dsp_command(chip, 0xD3);
712 #endif
713 		break;
714 	default:
715 		return -EINVAL;
716 	}
717 
718 	return 0;
719 }
720 
721 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
722 {
723         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
724 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
725 		return snd_es18xx_playback1_prepare(chip, substream);
726 	else
727 		return snd_es18xx_playback2_prepare(chip, substream);
728 }
729 
730 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
731 				       int cmd)
732 {
733         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
734 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
735 		return snd_es18xx_playback1_trigger(chip, substream, cmd);
736 	else
737 		return snd_es18xx_playback2_trigger(chip, substream, cmd);
738 }
739 
740 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id)
741 {
742 	struct snd_card *card = dev_id;
743 	struct snd_es18xx *chip = card->private_data;
744 	unsigned char status;
745 
746 	if (chip->caps & ES18XX_CONTROL) {
747 		/* Read Interrupt status */
748 		status = inb(chip->ctrl_port + 6);
749 	} else {
750 		/* Read Interrupt status */
751 		status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
752 	}
753 #if 0
754 	else {
755 		status = 0;
756 		if (inb(chip->port + 0x0C) & 0x01)
757 			status |= AUDIO1_IRQ;
758 		if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
759 			status |= AUDIO2_IRQ;
760 		if ((chip->caps & ES18XX_HWV) &&
761 		    snd_es18xx_mixer_read(chip, 0x64) & 0x10)
762 			status |= HWV_IRQ;
763 	}
764 #endif
765 
766 	/* Audio 1 & Audio 2 */
767         if (status & AUDIO2_IRQ) {
768                 if (chip->active & DAC2)
769                 	snd_pcm_period_elapsed(chip->playback_a_substream);
770 		/* ack interrupt */
771                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
772         }
773         if (status & AUDIO1_IRQ) {
774                 /* ok.. capture is active */
775                 if (chip->active & ADC1)
776                 	snd_pcm_period_elapsed(chip->capture_a_substream);
777                 /* ok.. playback2 is active */
778                 else if (chip->active & DAC1)
779                 	snd_pcm_period_elapsed(chip->playback_b_substream);
780 		/* ack interrupt */
781 		inb(chip->port + 0x0E);
782         }
783 
784 	/* MPU */
785 	if ((status & MPU_IRQ) && chip->rmidi)
786 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
787 
788 	/* Hardware volume */
789 	if (status & HWV_IRQ) {
790 		int split = 0;
791 		if (chip->caps & ES18XX_HWV) {
792 			split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
793 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
794 					&chip->hw_switch->id);
795 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
796 					&chip->hw_volume->id);
797 		}
798 		if (!split) {
799 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
800 					&chip->master_switch->id);
801 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
802 					&chip->master_volume->id);
803 		}
804 		/* ack interrupt */
805 		snd_es18xx_mixer_write(chip, 0x66, 0x00);
806 	}
807 	return IRQ_HANDLED;
808 }
809 
810 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
811 {
812         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
813 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
814 	int pos;
815 
816 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
817 		if (!(chip->active & DAC2))
818 			return 0;
819 		pos = snd_dma_pointer(chip->dma2, size);
820 		return pos >> chip->dma2_shift;
821 	} else {
822 		if (!(chip->active & DAC1))
823 			return 0;
824 		pos = snd_dma_pointer(chip->dma1, size);
825 		return pos >> chip->dma1_shift;
826 	}
827 }
828 
829 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
830 {
831         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
832 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
833 	int pos;
834 
835         if (!(chip->active & ADC1))
836                 return 0;
837 	pos = snd_dma_pointer(chip->dma1, size);
838 	return pos >> chip->dma1_shift;
839 }
840 
841 static struct snd_pcm_hardware snd_es18xx_playback =
842 {
843 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
844 				 SNDRV_PCM_INFO_RESUME |
845 				 SNDRV_PCM_INFO_MMAP_VALID),
846 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
847 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
848 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
849 	.rate_min =		4000,
850 	.rate_max =		48000,
851 	.channels_min =		1,
852 	.channels_max =		2,
853 	.buffer_bytes_max =	65536,
854 	.period_bytes_min =	64,
855 	.period_bytes_max =	65536,
856 	.periods_min =		1,
857 	.periods_max =		1024,
858 	.fifo_size =		0,
859 };
860 
861 static struct snd_pcm_hardware snd_es18xx_capture =
862 {
863 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
864 				 SNDRV_PCM_INFO_RESUME |
865 				 SNDRV_PCM_INFO_MMAP_VALID),
866 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
867 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
868 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
869 	.rate_min =		4000,
870 	.rate_max =		48000,
871 	.channels_min =		1,
872 	.channels_max =		2,
873 	.buffer_bytes_max =	65536,
874 	.period_bytes_min =	64,
875 	.period_bytes_max =	65536,
876 	.periods_min =		1,
877 	.periods_max =		1024,
878 	.fifo_size =		0,
879 };
880 
881 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
882 {
883 	struct snd_pcm_runtime *runtime = substream->runtime;
884         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
885 
886 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
887 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
888 		    chip->capture_a_substream &&
889 		    chip->capture_a_substream->runtime->channels != 1)
890 			return -EAGAIN;
891 		chip->playback_a_substream = substream;
892 	} else if (substream->number <= 1) {
893 		if (chip->capture_a_substream)
894 			return -EAGAIN;
895 		chip->playback_b_substream = substream;
896 	} else {
897 		snd_BUG();
898 		return -EINVAL;
899 	}
900 	substream->runtime->hw = snd_es18xx_playback;
901 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
902 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
903         return 0;
904 }
905 
906 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
907 {
908 	struct snd_pcm_runtime *runtime = substream->runtime;
909         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
910 
911         if (chip->playback_b_substream)
912                 return -EAGAIN;
913 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
914 	    chip->playback_a_substream &&
915 	    chip->playback_a_substream->runtime->channels != 1)
916 		return -EAGAIN;
917         chip->capture_a_substream = substream;
918 	substream->runtime->hw = snd_es18xx_capture;
919 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
920 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
921         return 0;
922 }
923 
924 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
925 {
926         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
927 
928 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
929 		chip->playback_a_substream = NULL;
930 	else
931 		chip->playback_b_substream = NULL;
932 
933 	snd_pcm_lib_free_pages(substream);
934 	return 0;
935 }
936 
937 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
938 {
939         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
940 
941         chip->capture_a_substream = NULL;
942 	snd_pcm_lib_free_pages(substream);
943         return 0;
944 }
945 
946 /*
947  *  MIXER part
948  */
949 
950 /* Record source mux routines:
951  * Depending on the chipset this mux switches between 4, 5, or 8 possible inputs.
952  * bit table for the 4/5 source mux:
953  * reg 1C:
954  *  b2 b1 b0   muxSource
955  *   x  0  x   microphone
956  *   0  1  x   CD
957  *   1  1  0   line
958  *   1  1  1   mixer
959  * if it's "mixer" and it's a 5 source mux chipset then reg 7A bit 3 determines
960  * either the play mixer or the capture mixer.
961  *
962  * "map4Source" translates from source number to reg bit pattern
963  * "invMap4Source" translates from reg bit pattern to source number
964  */
965 
966 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
967 {
968 	static char *texts5Source[5] = {
969 		"Mic", "CD", "Line", "Master", "Mix"
970 	};
971 	static char *texts8Source[8] = {
972 		"Mic", "Mic Master", "CD", "AOUT",
973 		"Mic1", "Mix", "Line", "Master"
974 	};
975 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
976 
977 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
978 	uinfo->count = 1;
979 	switch (chip->version) {
980 	case 0x1868:
981 	case 0x1878:
982 		uinfo->value.enumerated.items = 4;
983 		if (uinfo->value.enumerated.item > 3)
984 			uinfo->value.enumerated.item = 3;
985 		strcpy(uinfo->value.enumerated.name,
986 			texts5Source[uinfo->value.enumerated.item]);
987 		break;
988 	case 0x1887:
989 	case 0x1888:
990 		uinfo->value.enumerated.items = 5;
991 		if (uinfo->value.enumerated.item > 4)
992 			uinfo->value.enumerated.item = 4;
993 		strcpy(uinfo->value.enumerated.name, texts5Source[uinfo->value.enumerated.item]);
994 		break;
995 	case 0x1869: /* DS somewhat contradictory for 1869: could be be 5 or 8 */
996 	case 0x1879:
997 		uinfo->value.enumerated.items = 8;
998 		if (uinfo->value.enumerated.item > 7)
999 			uinfo->value.enumerated.item = 7;
1000 		strcpy(uinfo->value.enumerated.name, texts8Source[uinfo->value.enumerated.item]);
1001 		break;
1002 	default:
1003 		return -EINVAL;
1004 	}
1005 	return 0;
1006 }
1007 
1008 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1009 {
1010 	static unsigned char invMap4Source[8] = {0, 0, 1, 1, 0, 0, 2, 3};
1011 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1012 	int muxSource = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
1013 	if (!(chip->version == 0x1869 || chip->version == 0x1879)) {
1014 		muxSource = invMap4Source[muxSource];
1015 		if (muxSource==3 &&
1016 		    (chip->version == 0x1887 || chip->version == 0x1888) &&
1017 		    (snd_es18xx_mixer_read(chip, 0x7a) & 0x08)
1018 		)
1019 			muxSource = 4;
1020 	}
1021 	ucontrol->value.enumerated.item[0] = muxSource;
1022 	return 0;
1023 }
1024 
1025 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1026 {
1027 	static unsigned char map4Source[4] = {0, 2, 6, 7};
1028 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1029 	unsigned char val = ucontrol->value.enumerated.item[0];
1030 	unsigned char retVal = 0;
1031 
1032 	switch (chip->version) {
1033  /* 5 source chips */
1034 	case 0x1887:
1035 	case 0x1888:
1036 		if (val > 4)
1037 			return -EINVAL;
1038 		if (val == 4) {
1039 			retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x08) != 0x08;
1040 			val = 3;
1041 		} else
1042 			retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x00) != 0x00;
1043  /* 4 source chips */
1044 	case 0x1868:
1045 	case 0x1878:
1046 		if (val > 3)
1047 			return -EINVAL;
1048 		val = map4Source[val];
1049 		break;
1050  /* 8 source chips */
1051 	case 0x1869:
1052 	case 0x1879:
1053 		if (val > 7)
1054 			return -EINVAL;
1055 		break;
1056 	default:
1057 		return -EINVAL;
1058 	}
1059 	return (snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val) || retVal;
1060 }
1061 
1062 #define snd_es18xx_info_spatializer_enable	snd_ctl_boolean_mono_info
1063 
1064 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1065 {
1066 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1067 	unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
1068 	ucontrol->value.integer.value[0] = !!(val & 8);
1069 	return 0;
1070 }
1071 
1072 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1073 {
1074 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1075 	unsigned char oval, nval;
1076 	int change;
1077 	nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1078 	oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
1079 	change = nval != oval;
1080 	if (change) {
1081 		snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1082 		snd_es18xx_mixer_write(chip, 0x50, nval);
1083 	}
1084 	return change;
1085 }
1086 
1087 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1088 {
1089 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1090 	uinfo->count = 2;
1091 	uinfo->value.integer.min = 0;
1092 	uinfo->value.integer.max = 63;
1093 	return 0;
1094 }
1095 
1096 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1097 {
1098 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1099 	ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1100 	ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1101 	return 0;
1102 }
1103 
1104 #define snd_es18xx_info_hw_switch	snd_ctl_boolean_stereo_info
1105 
1106 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1107 {
1108 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1109 	ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1110 	ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1111 	return 0;
1112 }
1113 
1114 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1115 {
1116 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1117 	chip->master_volume = NULL;
1118 	chip->master_switch = NULL;
1119 	chip->hw_volume = NULL;
1120 	chip->hw_switch = NULL;
1121 }
1122 
1123 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1124 			       unsigned char mask, unsigned char val)
1125 {
1126 	if (reg < 0xa0)
1127 		return snd_es18xx_mixer_bits(chip, reg, mask, val);
1128 	else
1129 		return snd_es18xx_bits(chip, reg, mask, val);
1130 }
1131 
1132 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1133 {
1134 	if (reg < 0xa0)
1135 		return snd_es18xx_mixer_read(chip, reg);
1136 	else
1137 		return snd_es18xx_read(chip, reg);
1138 }
1139 
1140 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, invert) \
1141 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1142   .info = snd_es18xx_info_single, \
1143   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1144   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1145 
1146 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1147 {
1148 	int mask = (kcontrol->private_value >> 16) & 0xff;
1149 
1150 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1151 	uinfo->count = 1;
1152 	uinfo->value.integer.min = 0;
1153 	uinfo->value.integer.max = mask;
1154 	return 0;
1155 }
1156 
1157 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1158 {
1159 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1160 	int reg = kcontrol->private_value & 0xff;
1161 	int shift = (kcontrol->private_value >> 8) & 0xff;
1162 	int mask = (kcontrol->private_value >> 16) & 0xff;
1163 	int invert = (kcontrol->private_value >> 24) & 0xff;
1164 	int val;
1165 
1166 	val = snd_es18xx_reg_read(chip, reg);
1167 	ucontrol->value.integer.value[0] = (val >> shift) & mask;
1168 	if (invert)
1169 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1170 	return 0;
1171 }
1172 
1173 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1174 {
1175 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1176 	int reg = kcontrol->private_value & 0xff;
1177 	int shift = (kcontrol->private_value >> 8) & 0xff;
1178 	int mask = (kcontrol->private_value >> 16) & 0xff;
1179 	int invert = (kcontrol->private_value >> 24) & 0xff;
1180 	unsigned char val;
1181 
1182 	val = (ucontrol->value.integer.value[0] & mask);
1183 	if (invert)
1184 		val = mask - val;
1185 	mask <<= shift;
1186 	val <<= shift;
1187 	return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1188 }
1189 
1190 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1191 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1192   .info = snd_es18xx_info_double, \
1193   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1194   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1195 
1196 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1197 {
1198 	int mask = (kcontrol->private_value >> 24) & 0xff;
1199 
1200 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1201 	uinfo->count = 2;
1202 	uinfo->value.integer.min = 0;
1203 	uinfo->value.integer.max = mask;
1204 	return 0;
1205 }
1206 
1207 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1208 {
1209 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1210 	int left_reg = kcontrol->private_value & 0xff;
1211 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1212 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1213 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1214 	int mask = (kcontrol->private_value >> 24) & 0xff;
1215 	int invert = (kcontrol->private_value >> 22) & 1;
1216 	unsigned char left, right;
1217 
1218 	left = snd_es18xx_reg_read(chip, left_reg);
1219 	if (left_reg != right_reg)
1220 		right = snd_es18xx_reg_read(chip, right_reg);
1221 	else
1222 		right = left;
1223 	ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1224 	ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1225 	if (invert) {
1226 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1227 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1228 	}
1229 	return 0;
1230 }
1231 
1232 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1233 {
1234 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1235 	int left_reg = kcontrol->private_value & 0xff;
1236 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1237 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1238 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1239 	int mask = (kcontrol->private_value >> 24) & 0xff;
1240 	int invert = (kcontrol->private_value >> 22) & 1;
1241 	int change;
1242 	unsigned char val1, val2, mask1, mask2;
1243 
1244 	val1 = ucontrol->value.integer.value[0] & mask;
1245 	val2 = ucontrol->value.integer.value[1] & mask;
1246 	if (invert) {
1247 		val1 = mask - val1;
1248 		val2 = mask - val2;
1249 	}
1250 	val1 <<= shift_left;
1251 	val2 <<= shift_right;
1252 	mask1 = mask << shift_left;
1253 	mask2 = mask << shift_right;
1254 	if (left_reg != right_reg) {
1255 		change = 0;
1256 		if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1257 			change = 1;
1258 		if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1259 			change = 1;
1260 	} else {
1261 		change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2,
1262 					      val1 | val2) != (val1 | val2));
1263 	}
1264 	return change;
1265 }
1266 
1267 /* Mixer controls
1268  * These arrays contain setup data for mixer controls.
1269  *
1270  * The controls that are universal to all chipsets are fully initialized
1271  * here.
1272  */
1273 static struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1274 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1275 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1276 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1277 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1278 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1279 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1280 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1281 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1282 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1283 {
1284 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1285 	.name = "Capture Source",
1286 	.info = snd_es18xx_info_mux,
1287 	.get = snd_es18xx_get_mux,
1288 	.put = snd_es18xx_put_mux,
1289 }
1290 };
1291 
1292 static struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1293 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1294 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1295 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1296 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1297 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1298 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1299 };
1300 
1301 /*
1302  * The chipset specific mixer controls
1303  */
1304 static struct snd_kcontrol_new snd_es18xx_opt_speaker =
1305 	ES18XX_SINGLE("Beep Playback Volume", 0, 0x3c, 0, 7, 0);
1306 
1307 static struct snd_kcontrol_new snd_es18xx_opt_1869[] = {
1308 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1309 ES18XX_SINGLE("Video Playback Switch", 0, 0x7f, 0, 1, 0),
1310 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1311 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1312 };
1313 
1314 static struct snd_kcontrol_new snd_es18xx_opt_1878 =
1315 	ES18XX_DOUBLE("Video Playback Volume", 0, 0x68, 0x68, 4, 0, 15, 0);
1316 
1317 static struct snd_kcontrol_new snd_es18xx_opt_1879[] = {
1318 ES18XX_SINGLE("Video Playback Switch", 0, 0x71, 6, 1, 0),
1319 ES18XX_DOUBLE("Video Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1320 ES18XX_DOUBLE("Video Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1321 };
1322 
1323 static struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1324 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1325 };
1326 
1327 static struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1328 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1329 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1330 };
1331 
1332 static struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1333 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1334 {
1335 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1336 	.name = "3D Control - Switch",
1337 	.info = snd_es18xx_info_spatializer_enable,
1338 	.get = snd_es18xx_get_spatializer_enable,
1339 	.put = snd_es18xx_put_spatializer_enable,
1340 }
1341 };
1342 
1343 static struct snd_kcontrol_new snd_es18xx_micpre1_control =
1344 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1345 
1346 static struct snd_kcontrol_new snd_es18xx_micpre2_control =
1347 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1348 
1349 static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1350 {
1351 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1352 	.name = "Hardware Master Playback Volume",
1353 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1354 	.info = snd_es18xx_info_hw_volume,
1355 	.get = snd_es18xx_get_hw_volume,
1356 },
1357 {
1358 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1359 	.name = "Hardware Master Playback Switch",
1360 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1361 	.info = snd_es18xx_info_hw_switch,
1362 	.get = snd_es18xx_get_hw_switch,
1363 },
1364 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1365 };
1366 
1367 static int __devinit snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1368 {
1369 	int data;
1370 
1371 	outb(reg, chip->ctrl_port);
1372 	data = inb(chip->ctrl_port + 1);
1373 	return data;
1374 }
1375 
1376 static void __devinit snd_es18xx_config_write(struct snd_es18xx *chip,
1377 					      unsigned char reg, unsigned char data)
1378 {
1379 	/* No need for spinlocks, this function is used only in
1380 	   otherwise protected init code */
1381 	outb(reg, chip->ctrl_port);
1382 	outb(data, chip->ctrl_port + 1);
1383 #ifdef REG_DEBUG
1384 	snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1385 #endif
1386 }
1387 
1388 static int __devinit snd_es18xx_initialize(struct snd_es18xx *chip,
1389 					   unsigned long mpu_port,
1390 					   unsigned long fm_port)
1391 {
1392 	int mask = 0;
1393 
1394         /* enable extended mode */
1395         snd_es18xx_dsp_command(chip, 0xC6);
1396 	/* Reset mixer registers */
1397 	snd_es18xx_mixer_write(chip, 0x00, 0x00);
1398 
1399         /* Audio 1 DMA demand mode (4 bytes/request) */
1400         snd_es18xx_write(chip, 0xB9, 2);
1401 	if (chip->caps & ES18XX_CONTROL) {
1402 		/* Hardware volume IRQ */
1403 		snd_es18xx_config_write(chip, 0x27, chip->irq);
1404 		if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
1405 			/* FM I/O */
1406 			snd_es18xx_config_write(chip, 0x62, fm_port >> 8);
1407 			snd_es18xx_config_write(chip, 0x63, fm_port & 0xff);
1408 		}
1409 		if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1410 			/* MPU-401 I/O */
1411 			snd_es18xx_config_write(chip, 0x64, mpu_port >> 8);
1412 			snd_es18xx_config_write(chip, 0x65, mpu_port & 0xff);
1413 			/* MPU-401 IRQ */
1414 			snd_es18xx_config_write(chip, 0x28, chip->irq);
1415 		}
1416 		/* Audio1 IRQ */
1417 		snd_es18xx_config_write(chip, 0x70, chip->irq);
1418 		/* Audio2 IRQ */
1419 		snd_es18xx_config_write(chip, 0x72, chip->irq);
1420 		/* Audio1 DMA */
1421 		snd_es18xx_config_write(chip, 0x74, chip->dma1);
1422 		/* Audio2 DMA */
1423 		snd_es18xx_config_write(chip, 0x75, chip->dma2);
1424 
1425 		/* Enable Audio 1 IRQ */
1426 		snd_es18xx_write(chip, 0xB1, 0x50);
1427 		/* Enable Audio 2 IRQ */
1428 		snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1429 		/* Enable Audio 1 DMA */
1430 		snd_es18xx_write(chip, 0xB2, 0x50);
1431 		/* Enable MPU and hardware volume interrupt */
1432 		snd_es18xx_mixer_write(chip, 0x64, 0x42);
1433 		/* Enable ESS wavetable input */
1434 		snd_es18xx_mixer_bits(chip, 0x48, 0x10, 0x10);
1435 	}
1436 	else {
1437 		int irqmask, dma1mask, dma2mask;
1438 		switch (chip->irq) {
1439 		case 2:
1440 		case 9:
1441 			irqmask = 0;
1442 			break;
1443 		case 5:
1444 			irqmask = 1;
1445 			break;
1446 		case 7:
1447 			irqmask = 2;
1448 			break;
1449 		case 10:
1450 			irqmask = 3;
1451 			break;
1452 		default:
1453 			snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1454 			return -ENODEV;
1455 		}
1456 		switch (chip->dma1) {
1457 		case 0:
1458 			dma1mask = 1;
1459 			break;
1460 		case 1:
1461 			dma1mask = 2;
1462 			break;
1463 		case 3:
1464 			dma1mask = 3;
1465 			break;
1466 		default:
1467 			snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1468 			return -ENODEV;
1469 		}
1470 		switch (chip->dma2) {
1471 		case 0:
1472 			dma2mask = 0;
1473 			break;
1474 		case 1:
1475 			dma2mask = 1;
1476 			break;
1477 		case 3:
1478 			dma2mask = 2;
1479 			break;
1480 		case 5:
1481 			dma2mask = 3;
1482 			break;
1483 		default:
1484 			snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1485 			return -ENODEV;
1486 		}
1487 
1488 		/* Enable and set Audio 1 IRQ */
1489 		snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1490 		/* Enable and set Audio 1 DMA */
1491 		snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1492 		/* Set Audio 2 DMA */
1493 		snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1494 		/* Enable Audio 2 IRQ and DMA
1495 		   Set capture mixer input */
1496 		snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1497 		/* Enable and set hardware volume interrupt */
1498 		snd_es18xx_mixer_write(chip, 0x64, 0x06);
1499 		if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1500 			/* MPU401 share irq with audio
1501 			   Joystick enabled
1502 			   FM enabled */
1503 			snd_es18xx_mixer_write(chip, 0x40,
1504 					       0x43 | (mpu_port & 0xf0) >> 1);
1505 		}
1506 		snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1507 	}
1508 	if (chip->caps & ES18XX_NEW_RATE) {
1509 		/* Change behaviour of register A1
1510 		   4x oversampling
1511 		   2nd channel DAC asynchronous */
1512 		snd_es18xx_mixer_write(chip, 0x71, 0x32);
1513 	}
1514 	if (!(chip->caps & ES18XX_PCM2)) {
1515 		/* Enable DMA FIFO */
1516 		snd_es18xx_write(chip, 0xB7, 0x80);
1517 	}
1518 	if (chip->caps & ES18XX_SPATIALIZER) {
1519 		/* Set spatializer parameters to recommended values */
1520 		snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1521 		snd_es18xx_mixer_write(chip, 0x56, 0x95);
1522 		snd_es18xx_mixer_write(chip, 0x58, 0x94);
1523 		snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1524 	}
1525 	/* Flip the "enable I2S" bits for those chipsets that need it */
1526 	switch (chip->version) {
1527 	case 0x1879:
1528 		//Leaving I2S enabled on the 1879 screws up the PCM playback (rate effected somehow)
1529 		//so a Switch control has been added to toggle this 0x71 bit on/off:
1530 		//snd_es18xx_mixer_bits(chip, 0x71, 0x40, 0x40);
1531 		/* Note: we fall through on purpose here. */
1532 	case 0x1878:
1533 		snd_es18xx_config_write(chip, 0x29, snd_es18xx_config_read(chip, 0x29) | 0x40);
1534 		break;
1535 	}
1536 	/* Mute input source */
1537 	if (chip->caps & ES18XX_MUTEREC)
1538 		mask = 0x10;
1539 	if (chip->caps & ES18XX_RECMIX)
1540 		snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1541 	else {
1542 		snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1543 		snd_es18xx_write(chip, 0xb4, 0x00);
1544 	}
1545 #ifndef AVOID_POPS
1546 	/* Enable PCM output */
1547 	snd_es18xx_dsp_command(chip, 0xD1);
1548 #endif
1549 
1550         return 0;
1551 }
1552 
1553 static int __devinit snd_es18xx_identify(struct snd_es18xx *chip)
1554 {
1555 	int hi,lo;
1556 
1557 	/* reset */
1558 	if (snd_es18xx_reset(chip) < 0) {
1559 		snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1560 		return -ENODEV;
1561 	}
1562 
1563 	snd_es18xx_dsp_command(chip, 0xe7);
1564 	hi = snd_es18xx_dsp_get_byte(chip);
1565 	if (hi < 0) {
1566 		return hi;
1567 	}
1568 	lo = snd_es18xx_dsp_get_byte(chip);
1569 	if ((lo & 0xf0) != 0x80) {
1570 		return -ENODEV;
1571 	}
1572 	if (hi == 0x48) {
1573 		chip->version = 0x488;
1574 		return 0;
1575 	}
1576 	if (hi != 0x68) {
1577 		return -ENODEV;
1578 	}
1579 	if ((lo & 0x0f) < 8) {
1580 		chip->version = 0x688;
1581 		return 0;
1582 	}
1583 
1584         outb(0x40, chip->port + 0x04);
1585 	udelay(10);
1586 	hi = inb(chip->port + 0x05);
1587 	udelay(10);
1588 	lo = inb(chip->port + 0x05);
1589 	if (hi != lo) {
1590 		chip->version = hi << 8 | lo;
1591 		chip->ctrl_port = inb(chip->port + 0x05) << 8;
1592 		udelay(10);
1593 		chip->ctrl_port += inb(chip->port + 0x05);
1594 
1595 		if ((chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL")) == NULL) {
1596 			snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1597 			return -EBUSY;
1598 		}
1599 
1600 		return 0;
1601 	}
1602 
1603 	/* If has Hardware volume */
1604 	if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1605 		/* If has Audio2 */
1606 		if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1607 			/* If has volume count */
1608 			if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1609 				chip->version = 0x1887;
1610 			} else {
1611 				chip->version = 0x1888;
1612 			}
1613 		} else {
1614 			chip->version = 0x1788;
1615 		}
1616 	}
1617 	else
1618 		chip->version = 0x1688;
1619 	return 0;
1620 }
1621 
1622 static int __devinit snd_es18xx_probe(struct snd_es18xx *chip,
1623 					unsigned long mpu_port,
1624 					unsigned long fm_port)
1625 {
1626 	if (snd_es18xx_identify(chip) < 0) {
1627 		snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1628                 return -ENODEV;
1629 	}
1630 
1631 	switch (chip->version) {
1632 	case 0x1868:
1633 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL;
1634 		break;
1635 	case 0x1869:
1636 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV;
1637 		break;
1638 	case 0x1878:
1639 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL;
1640 		break;
1641 	case 0x1879:
1642 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1643 		break;
1644 	case 0x1887:
1645 	case 0x1888:
1646 		chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME;
1647 		break;
1648 	default:
1649 		snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1650                            chip->port, chip->version);
1651                 return -ENODEV;
1652         }
1653 
1654         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1655 
1656 	if (chip->dma1 == chip->dma2)
1657 		chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1658 
1659 	return snd_es18xx_initialize(chip, mpu_port, fm_port);
1660 }
1661 
1662 static struct snd_pcm_ops snd_es18xx_playback_ops = {
1663 	.open =		snd_es18xx_playback_open,
1664 	.close =	snd_es18xx_playback_close,
1665 	.ioctl =	snd_pcm_lib_ioctl,
1666 	.hw_params =	snd_es18xx_playback_hw_params,
1667 	.hw_free =	snd_es18xx_pcm_hw_free,
1668 	.prepare =	snd_es18xx_playback_prepare,
1669 	.trigger =	snd_es18xx_playback_trigger,
1670 	.pointer =	snd_es18xx_playback_pointer,
1671 };
1672 
1673 static struct snd_pcm_ops snd_es18xx_capture_ops = {
1674 	.open =		snd_es18xx_capture_open,
1675 	.close =	snd_es18xx_capture_close,
1676 	.ioctl =	snd_pcm_lib_ioctl,
1677 	.hw_params =	snd_es18xx_capture_hw_params,
1678 	.hw_free =	snd_es18xx_pcm_hw_free,
1679 	.prepare =	snd_es18xx_capture_prepare,
1680 	.trigger =	snd_es18xx_capture_trigger,
1681 	.pointer =	snd_es18xx_capture_pointer,
1682 };
1683 
1684 static int __devinit snd_es18xx_pcm(struct snd_card *card, int device,
1685 				    struct snd_pcm **rpcm)
1686 {
1687 	struct snd_es18xx *chip = card->private_data;
1688         struct snd_pcm *pcm;
1689 	char str[16];
1690 	int err;
1691 
1692 	if (rpcm)
1693 		*rpcm = NULL;
1694 	sprintf(str, "ES%x", chip->version);
1695 	if (chip->caps & ES18XX_PCM2)
1696 		err = snd_pcm_new(card, str, device, 2, 1, &pcm);
1697 	else
1698 		err = snd_pcm_new(card, str, device, 1, 1, &pcm);
1699         if (err < 0)
1700                 return err;
1701 
1702 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1703 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1704 
1705 	/* global setup */
1706         pcm->private_data = chip;
1707         pcm->info_flags = 0;
1708 	if (chip->caps & ES18XX_DUPLEX_SAME)
1709 		pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1710 	if (! (chip->caps & ES18XX_PCM2))
1711 		pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1712 	sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1713         chip->pcm = pcm;
1714 
1715 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1716 					      snd_dma_isa_data(),
1717 					      64*1024,
1718 					      chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1719 
1720         if (rpcm)
1721         	*rpcm = pcm;
1722 	return 0;
1723 }
1724 
1725 /* Power Management support functions */
1726 #ifdef CONFIG_PM
1727 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1728 {
1729 	struct snd_es18xx *chip = card->private_data;
1730 
1731 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1732 
1733 	snd_pcm_suspend_all(chip->pcm);
1734 
1735 	/* power down */
1736 	chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1737 	chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1738 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1739 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1740 
1741 	return 0;
1742 }
1743 
1744 static int snd_es18xx_resume(struct snd_card *card)
1745 {
1746 	struct snd_es18xx *chip = card->private_data;
1747 
1748 	/* restore PM register, we won't wake till (not 0x07) i/o activity though */
1749 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1750 
1751 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1752 	return 0;
1753 }
1754 #endif /* CONFIG_PM */
1755 
1756 static int snd_es18xx_free(struct snd_card *card)
1757 {
1758 	struct snd_es18xx *chip = card->private_data;
1759 
1760 	release_and_free_resource(chip->res_port);
1761 	release_and_free_resource(chip->res_ctrl_port);
1762 	release_and_free_resource(chip->res_mpu_port);
1763 	if (chip->irq >= 0)
1764 		free_irq(chip->irq, (void *) card);
1765 	if (chip->dma1 >= 0) {
1766 		disable_dma(chip->dma1);
1767 		free_dma(chip->dma1);
1768 	}
1769 	if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1770 		disable_dma(chip->dma2);
1771 		free_dma(chip->dma2);
1772 	}
1773 	return 0;
1774 }
1775 
1776 static int snd_es18xx_dev_free(struct snd_device *device)
1777 {
1778 	return snd_es18xx_free(device->card);
1779 }
1780 
1781 static int __devinit snd_es18xx_new_device(struct snd_card *card,
1782 					   unsigned long port,
1783 					   unsigned long mpu_port,
1784 					   unsigned long fm_port,
1785 					   int irq, int dma1, int dma2)
1786 {
1787 	struct snd_es18xx *chip = card->private_data;
1788 	static struct snd_device_ops ops = {
1789 		.dev_free =	snd_es18xx_dev_free,
1790         };
1791 	int err;
1792 
1793 	spin_lock_init(&chip->reg_lock);
1794  	spin_lock_init(&chip->mixer_lock);
1795         chip->port = port;
1796         chip->irq = -1;
1797         chip->dma1 = -1;
1798         chip->dma2 = -1;
1799         chip->audio2_vol = 0x00;
1800 	chip->active = 0;
1801 
1802 	chip->res_port = request_region(port, 16, "ES18xx");
1803 	if (chip->res_port == NULL) {
1804 		snd_es18xx_free(card);
1805 		snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1806 		return -EBUSY;
1807 	}
1808 
1809 	if (request_irq(irq, snd_es18xx_interrupt, IRQF_DISABLED, "ES18xx",
1810 			(void *) card)) {
1811 		snd_es18xx_free(card);
1812 		snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1813 		return -EBUSY;
1814 	}
1815 	chip->irq = irq;
1816 
1817 	if (request_dma(dma1, "ES18xx DMA 1")) {
1818 		snd_es18xx_free(card);
1819 		snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1820 		return -EBUSY;
1821 	}
1822 	chip->dma1 = dma1;
1823 
1824 	if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1825 		snd_es18xx_free(card);
1826 		snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1827 		return -EBUSY;
1828 	}
1829 	chip->dma2 = dma2;
1830 
1831 	if (snd_es18xx_probe(chip, mpu_port, fm_port) < 0) {
1832 		snd_es18xx_free(card);
1833 		return -ENODEV;
1834 	}
1835 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1836 	if (err < 0) {
1837 		snd_es18xx_free(card);
1838 		return err;
1839 	}
1840         return 0;
1841 }
1842 
1843 static int __devinit snd_es18xx_mixer(struct snd_card *card)
1844 {
1845 	struct snd_es18xx *chip = card->private_data;
1846 	int err;
1847 	unsigned int idx;
1848 
1849 	strcpy(card->mixername, chip->pcm->name);
1850 
1851 	for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1852 		struct snd_kcontrol *kctl;
1853 		kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1854 		if (chip->caps & ES18XX_HWV) {
1855 			switch (idx) {
1856 			case 0:
1857 				chip->master_volume = kctl;
1858 				kctl->private_free = snd_es18xx_hwv_free;
1859 				break;
1860 			case 1:
1861 				chip->master_switch = kctl;
1862 				kctl->private_free = snd_es18xx_hwv_free;
1863 				break;
1864 			}
1865 		}
1866 		if ((err = snd_ctl_add(card, kctl)) < 0)
1867 			return err;
1868 	}
1869 	if (chip->caps & ES18XX_PCM2) {
1870 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1871 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip))) < 0)
1872 				return err;
1873 		}
1874 	} else {
1875 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1876 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip))) < 0)
1877 				return err;
1878 		}
1879 	}
1880 
1881 	if (chip->caps & ES18XX_RECMIX) {
1882 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1883 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip))) < 0)
1884 				return err;
1885 		}
1886 	}
1887 	switch (chip->version) {
1888 	default:
1889 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip))) < 0)
1890 			return err;
1891 		break;
1892 	case 0x1869:
1893 	case 0x1879:
1894 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip))) < 0)
1895 			return err;
1896 		break;
1897 	}
1898 	if (chip->caps & ES18XX_SPATIALIZER) {
1899 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1900 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip))) < 0)
1901 				return err;
1902 		}
1903 	}
1904 	if (chip->caps & ES18XX_HWV) {
1905 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1906 			struct snd_kcontrol *kctl;
1907 			kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1908 			if (idx == 0)
1909 				chip->hw_volume = kctl;
1910 			else
1911 				chip->hw_switch = kctl;
1912 			kctl->private_free = snd_es18xx_hwv_free;
1913 			if ((err = snd_ctl_add(card, kctl)) < 0)
1914 				return err;
1915 
1916 		}
1917 	}
1918 	/* finish initializing other chipset specific controls
1919 	 */
1920 	if (chip->version != 0x1868) {
1921 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_speaker,
1922 						     chip));
1923 		if (err < 0)
1924 			return err;
1925 	}
1926 	if (chip->version == 0x1869) {
1927 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1869); idx++) {
1928 			err = snd_ctl_add(card,
1929 					  snd_ctl_new1(&snd_es18xx_opt_1869[idx],
1930 						       chip));
1931 			if (err < 0)
1932 				return err;
1933 		}
1934 	} else if (chip->version == 0x1878) {
1935 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_1878,
1936 						     chip));
1937 		if (err < 0)
1938 			return err;
1939 	} else if (chip->version == 0x1879) {
1940 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1879); idx++) {
1941 			err = snd_ctl_add(card,
1942 					  snd_ctl_new1(&snd_es18xx_opt_1879[idx],
1943 						       chip));
1944 			if (err < 0)
1945 				return err;
1946 		}
1947 	}
1948 	return 0;
1949 }
1950 
1951 
1952 /* Card level */
1953 
1954 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");
1955 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1956 MODULE_LICENSE("GPL");
1957 MODULE_SUPPORTED_DEVICE("{{ESS,ES1868 PnP AudioDrive},"
1958 		"{ESS,ES1869 PnP AudioDrive},"
1959 		"{ESS,ES1878 PnP AudioDrive},"
1960 		"{ESS,ES1879 PnP AudioDrive},"
1961 		"{ESS,ES1887 PnP AudioDrive},"
1962 		"{ESS,ES1888 PnP AudioDrive},"
1963 		"{ESS,ES1887 AudioDrive},"
1964 		"{ESS,ES1888 AudioDrive}}");
1965 
1966 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
1967 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
1968 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1969 #ifdef CONFIG_PNP
1970 static int isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
1971 #endif
1972 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260,0x280 */
1973 #ifndef CONFIG_PNP
1974 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
1975 #else
1976 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1977 #endif
1978 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1979 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
1980 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
1981 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
1982 
1983 module_param_array(index, int, NULL, 0444);
1984 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
1985 module_param_array(id, charp, NULL, 0444);
1986 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
1987 module_param_array(enable, bool, NULL, 0444);
1988 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
1989 #ifdef CONFIG_PNP
1990 module_param_array(isapnp, bool, NULL, 0444);
1991 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
1992 #endif
1993 module_param_array(port, long, NULL, 0444);
1994 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
1995 module_param_array(mpu_port, long, NULL, 0444);
1996 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
1997 module_param_array(fm_port, long, NULL, 0444);
1998 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
1999 module_param_array(irq, int, NULL, 0444);
2000 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
2001 module_param_array(dma1, int, NULL, 0444);
2002 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
2003 module_param_array(dma2, int, NULL, 0444);
2004 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
2005 
2006 #ifdef CONFIG_PNP
2007 static int isa_registered;
2008 static int pnp_registered;
2009 static int pnpc_registered;
2010 
2011 static struct pnp_device_id snd_audiodrive_pnpbiosids[] = {
2012 	{ .id = "ESS1869" },
2013 	{ .id = "ESS1879" },
2014 	{ .id = "" }		/* end */
2015 };
2016 
2017 MODULE_DEVICE_TABLE(pnp, snd_audiodrive_pnpbiosids);
2018 
2019 /* PnP main device initialization */
2020 static int __devinit snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
2021 {
2022 	if (pnp_activate_dev(pdev) < 0) {
2023 		snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
2024 		return -EBUSY;
2025 	}
2026 	/* ok. hack using Vendor-Defined Card-Level registers */
2027 	/* skip csn and logdev initialization - already done in isapnp_configure */
2028 	if (pnp_device_is_isapnp(pdev)) {
2029 		isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
2030 		isapnp_write_byte(0x27, pnp_irq(pdev, 0));	/* Hardware Volume IRQ Number */
2031 		if (mpu_port[dev] != SNDRV_AUTO_PORT)
2032 			isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
2033 		isapnp_write_byte(0x72, pnp_irq(pdev, 0));	/* second IRQ */
2034 		isapnp_cfg_end();
2035 	}
2036 	port[dev] = pnp_port_start(pdev, 0);
2037 	fm_port[dev] = pnp_port_start(pdev, 1);
2038 	mpu_port[dev] = pnp_port_start(pdev, 2);
2039 	dma1[dev] = pnp_dma(pdev, 0);
2040 	dma2[dev] = pnp_dma(pdev, 1);
2041 	irq[dev] = pnp_irq(pdev, 0);
2042 	snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
2043 	snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
2044 	return 0;
2045 }
2046 
2047 static int __devinit snd_audiodrive_pnp(int dev, struct snd_es18xx *chip,
2048 					struct pnp_dev *pdev)
2049 {
2050 	chip->dev = pdev;
2051 	if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2052 		return -EBUSY;
2053 	return 0;
2054 }
2055 
2056 static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
2057 	/* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
2058 	{ .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
2059 	/* ESS 1868 (integrated on Maxisound Cards) */
2060 	{ .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
2061 	/* ESS 1868 (integrated on Maxisound Cards) */
2062 	{ .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
2063 	/* ESS ES1869 Plug and Play AudioDrive */
2064 	{ .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
2065 	/* ESS 1869 */
2066 	{ .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
2067 	/* ESS 1878 */
2068 	{ .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
2069 	/* ESS 1879 */
2070 	{ .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
2071 	/* --- */
2072 	{ .id = "" } /* end */
2073 };
2074 
2075 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
2076 
2077 static int __devinit snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip,
2078 					struct pnp_card_link *card,
2079 					const struct pnp_card_device_id *id)
2080 {
2081 	chip->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
2082 	if (chip->dev == NULL)
2083 		return -EBUSY;
2084 
2085 	chip->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
2086 	if (chip->devc == NULL)
2087 		return -EBUSY;
2088 
2089 	/* Control port initialization */
2090 	if (pnp_activate_dev(chip->devc) < 0) {
2091 		snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
2092 		return -EAGAIN;
2093 	}
2094 	snd_printdd("pnp: port=0x%llx\n",
2095 			(unsigned long long)pnp_port_start(chip->devc, 0));
2096 	if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2097 		return -EBUSY;
2098 
2099 	return 0;
2100 }
2101 #endif /* CONFIG_PNP */
2102 
2103 #ifdef CONFIG_PNP
2104 #define is_isapnp_selected(dev)		isapnp[dev]
2105 #else
2106 #define is_isapnp_selected(dev)		0
2107 #endif
2108 
2109 static int snd_es18xx_card_new(int dev, struct snd_card **cardp)
2110 {
2111 	return snd_card_create(index[dev], id[dev], THIS_MODULE,
2112 			       sizeof(struct snd_es18xx), cardp);
2113 }
2114 
2115 static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev)
2116 {
2117 	struct snd_es18xx *chip = card->private_data;
2118 	struct snd_opl3 *opl3;
2119 	int err;
2120 
2121 	err = snd_es18xx_new_device(card,
2122 				    port[dev], mpu_port[dev], fm_port[dev],
2123 				    irq[dev], dma1[dev], dma2[dev]);
2124 	if (err < 0)
2125 		return err;
2126 
2127 	sprintf(card->driver, "ES%x", chip->version);
2128 
2129 	sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2130 	if (dma1[dev] != dma2[dev])
2131 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2132 			card->shortname,
2133 			chip->port,
2134 			irq[dev], dma1[dev], dma2[dev]);
2135 	else
2136 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2137 			card->shortname,
2138 			chip->port,
2139 			irq[dev], dma1[dev]);
2140 
2141 	err = snd_es18xx_pcm(card, 0, NULL);
2142 	if (err < 0)
2143 		return err;
2144 
2145 	err = snd_es18xx_mixer(card);
2146 	if (err < 0)
2147 		return err;
2148 
2149 	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2150 		if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
2151 				    OPL3_HW_OPL3, 0, &opl3) < 0) {
2152 			snd_printk(KERN_WARNING PFX
2153 				   "opl3 not detected at 0x%lx\n",
2154 				   fm_port[dev]);
2155 		} else {
2156 			err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
2157 			if (err < 0)
2158 				return err;
2159 		}
2160 	}
2161 
2162 	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2163 		err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2164 					  mpu_port[dev], 0,
2165 					  irq[dev], 0, &chip->rmidi);
2166 		if (err < 0)
2167 			return err;
2168 	}
2169 
2170 	return snd_card_register(card);
2171 }
2172 
2173 static int __devinit snd_es18xx_isa_match(struct device *pdev, unsigned int dev)
2174 {
2175 	return enable[dev] && !is_isapnp_selected(dev);
2176 }
2177 
2178 static int __devinit snd_es18xx_isa_probe1(int dev, struct device *devptr)
2179 {
2180 	struct snd_card *card;
2181 	int err;
2182 
2183 	err = snd_es18xx_card_new(dev, &card);
2184 	if (err < 0)
2185 		return err;
2186 	snd_card_set_dev(card, devptr);
2187 	if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2188 		snd_card_free(card);
2189 		return err;
2190 	}
2191 	dev_set_drvdata(devptr, card);
2192 	return 0;
2193 }
2194 
2195 static int __devinit snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
2196 {
2197 	int err;
2198 	static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2199 	static int possible_dmas[] = {1, 0, 3, 5, -1};
2200 
2201 	if (irq[dev] == SNDRV_AUTO_IRQ) {
2202 		if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
2203 			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2204 			return -EBUSY;
2205 		}
2206 	}
2207 	if (dma1[dev] == SNDRV_AUTO_DMA) {
2208 		if ((dma1[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2209 			snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2210 			return -EBUSY;
2211 		}
2212 	}
2213 	if (dma2[dev] == SNDRV_AUTO_DMA) {
2214 		if ((dma2[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2215 			snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2216 			return -EBUSY;
2217 		}
2218 	}
2219 
2220 	if (port[dev] != SNDRV_AUTO_PORT) {
2221 		return snd_es18xx_isa_probe1(dev, pdev);
2222 	} else {
2223 		static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2224 		int i;
2225 		for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2226 			port[dev] = possible_ports[i];
2227 			err = snd_es18xx_isa_probe1(dev, pdev);
2228 			if (! err)
2229 				return 0;
2230 		}
2231 		return err;
2232 	}
2233 }
2234 
2235 static int __devexit snd_es18xx_isa_remove(struct device *devptr,
2236 					   unsigned int dev)
2237 {
2238 	snd_card_free(dev_get_drvdata(devptr));
2239 	dev_set_drvdata(devptr, NULL);
2240 	return 0;
2241 }
2242 
2243 #ifdef CONFIG_PM
2244 static int snd_es18xx_isa_suspend(struct device *dev, unsigned int n,
2245 				  pm_message_t state)
2246 {
2247 	return snd_es18xx_suspend(dev_get_drvdata(dev), state);
2248 }
2249 
2250 static int snd_es18xx_isa_resume(struct device *dev, unsigned int n)
2251 {
2252 	return snd_es18xx_resume(dev_get_drvdata(dev));
2253 }
2254 #endif
2255 
2256 #define DEV_NAME "es18xx"
2257 
2258 static struct isa_driver snd_es18xx_isa_driver = {
2259 	.match		= snd_es18xx_isa_match,
2260 	.probe		= snd_es18xx_isa_probe,
2261 	.remove		= __devexit_p(snd_es18xx_isa_remove),
2262 #ifdef CONFIG_PM
2263 	.suspend	= snd_es18xx_isa_suspend,
2264 	.resume		= snd_es18xx_isa_resume,
2265 #endif
2266 	.driver		= {
2267 		.name	= DEV_NAME
2268 	},
2269 };
2270 
2271 
2272 #ifdef CONFIG_PNP
2273 static int __devinit snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
2274 					    const struct pnp_device_id *id)
2275 {
2276 	static int dev;
2277 	int err;
2278 	struct snd_card *card;
2279 
2280 	if (pnp_device_is_isapnp(pdev))
2281 		return -ENOENT;	/* we have another procedure - card */
2282 	for (; dev < SNDRV_CARDS; dev++) {
2283 		if (enable[dev] && isapnp[dev])
2284 			break;
2285 	}
2286 	if (dev >= SNDRV_CARDS)
2287 		return -ENODEV;
2288 
2289 	err = snd_es18xx_card_new(dev, &card);
2290 	if (err < 0)
2291 		return err;
2292 	if ((err = snd_audiodrive_pnp(dev, card->private_data, pdev)) < 0) {
2293 		snd_card_free(card);
2294 		return err;
2295 	}
2296 	snd_card_set_dev(card, &pdev->dev);
2297 	if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2298 		snd_card_free(card);
2299 		return err;
2300 	}
2301 	pnp_set_drvdata(pdev, card);
2302 	dev++;
2303 	return 0;
2304 }
2305 
2306 static void __devexit snd_audiodrive_pnp_remove(struct pnp_dev * pdev)
2307 {
2308 	snd_card_free(pnp_get_drvdata(pdev));
2309 	pnp_set_drvdata(pdev, NULL);
2310 }
2311 
2312 #ifdef CONFIG_PM
2313 static int snd_audiodrive_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
2314 {
2315 	return snd_es18xx_suspend(pnp_get_drvdata(pdev), state);
2316 }
2317 static int snd_audiodrive_pnp_resume(struct pnp_dev *pdev)
2318 {
2319 	return snd_es18xx_resume(pnp_get_drvdata(pdev));
2320 }
2321 #endif
2322 
2323 static struct pnp_driver es18xx_pnp_driver = {
2324 	.name = "es18xx-pnpbios",
2325 	.id_table = snd_audiodrive_pnpbiosids,
2326 	.probe = snd_audiodrive_pnp_detect,
2327 	.remove = __devexit_p(snd_audiodrive_pnp_remove),
2328 #ifdef CONFIG_PM
2329 	.suspend = snd_audiodrive_pnp_suspend,
2330 	.resume = snd_audiodrive_pnp_resume,
2331 #endif
2332 };
2333 
2334 static int __devinit snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
2335 					       const struct pnp_card_device_id *pid)
2336 {
2337 	static int dev;
2338 	struct snd_card *card;
2339 	int res;
2340 
2341 	for ( ; dev < SNDRV_CARDS; dev++) {
2342 		if (enable[dev] && isapnp[dev])
2343 			break;
2344 	}
2345 	if (dev >= SNDRV_CARDS)
2346 		return -ENODEV;
2347 
2348 	res = snd_es18xx_card_new(dev, &card);
2349 	if (res < 0)
2350 		return res;
2351 
2352 	if ((res = snd_audiodrive_pnpc(dev, card->private_data, pcard, pid)) < 0) {
2353 		snd_card_free(card);
2354 		return res;
2355 	}
2356 	snd_card_set_dev(card, &pcard->card->dev);
2357 	if ((res = snd_audiodrive_probe(card, dev)) < 0) {
2358 		snd_card_free(card);
2359 		return res;
2360 	}
2361 
2362 	pnp_set_card_drvdata(pcard, card);
2363 	dev++;
2364 	return 0;
2365 }
2366 
2367 static void __devexit snd_audiodrive_pnpc_remove(struct pnp_card_link * pcard)
2368 {
2369 	snd_card_free(pnp_get_card_drvdata(pcard));
2370 	pnp_set_card_drvdata(pcard, NULL);
2371 }
2372 
2373 #ifdef CONFIG_PM
2374 static int snd_audiodrive_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state)
2375 {
2376 	return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2377 }
2378 
2379 static int snd_audiodrive_pnpc_resume(struct pnp_card_link *pcard)
2380 {
2381 	return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2382 }
2383 
2384 #endif
2385 
2386 static struct pnp_card_driver es18xx_pnpc_driver = {
2387 	.flags = PNP_DRIVER_RES_DISABLE,
2388 	.name = "es18xx",
2389 	.id_table = snd_audiodrive_pnpids,
2390 	.probe = snd_audiodrive_pnpc_detect,
2391 	.remove = __devexit_p(snd_audiodrive_pnpc_remove),
2392 #ifdef CONFIG_PM
2393 	.suspend	= snd_audiodrive_pnpc_suspend,
2394 	.resume		= snd_audiodrive_pnpc_resume,
2395 #endif
2396 };
2397 #endif /* CONFIG_PNP */
2398 
2399 static int __init alsa_card_es18xx_init(void)
2400 {
2401 	int err;
2402 
2403 	err = isa_register_driver(&snd_es18xx_isa_driver, SNDRV_CARDS);
2404 #ifdef CONFIG_PNP
2405 	if (!err)
2406 		isa_registered = 1;
2407 
2408 	err = pnp_register_driver(&es18xx_pnp_driver);
2409 	if (!err)
2410 		pnp_registered = 1;
2411 
2412 	err = pnp_register_card_driver(&es18xx_pnpc_driver);
2413 	if (!err)
2414 		pnpc_registered = 1;
2415 
2416 	if (isa_registered || pnp_registered)
2417 		err = 0;
2418 #endif
2419 	return err;
2420 }
2421 
2422 static void __exit alsa_card_es18xx_exit(void)
2423 {
2424 #ifdef CONFIG_PNP
2425 	if (pnpc_registered)
2426 		pnp_unregister_card_driver(&es18xx_pnpc_driver);
2427 	if (pnp_registered)
2428 		pnp_unregister_driver(&es18xx_pnp_driver);
2429 	if (isa_registered)
2430 #endif
2431 		isa_unregister_driver(&snd_es18xx_isa_driver);
2432 }
2433 
2434 module_init(alsa_card_es18xx_init)
2435 module_exit(alsa_card_es18xx_exit)
2436