xref: /openbmc/linux/sound/isa/es18xx.c (revision 0181f6f1)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Driver for generic ESS AudioDrive ES18xx soundcards
4  *  Copyright (c) by Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>
5  *  Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
6  */
7 /* GENERAL NOTES:
8  *
9  * BUGS:
10  * - There are pops (we can't delay in trigger function, cause midlevel
11  *   often need to trigger down and then up very quickly).
12  *   Any ideas?
13  * - Support for 16 bit DMA seems to be broken. I've no hardware to tune it.
14  */
15 
16 /*
17  * ES1868  NOTES:
18  * - The chip has one half duplex pcm (with very limited full duplex support).
19  *
20  * - Duplex stereophonic sound is impossible.
21  * - Record and playback must share the same frequency rate.
22  *
23  * - The driver use dma2 for playback and dma1 for capture.
24  */
25 
26 /*
27  * ES1869 NOTES:
28  *
29  * - there are a first full duplex pcm and a second playback only pcm
30  *   (incompatible with first pcm capture)
31  *
32  * - there is support for the capture volume and ESS Spatializer 3D effect.
33  *
34  * - contrarily to some pages in DS_1869.PDF the rates can be set
35  *   independently.
36  *
37  * - Zoom Video is implemented by sharing the FM DAC, thus the user can
38  *   have either FM playback or Video playback but not both simultaneously.
39  *   The Video Playback Switch mixer control toggles this choice.
40  *
41  * BUGS:
42  *
43  * - There is a major trouble I noted:
44  *
45  *   using both channel for playback stereo 16 bit samples at 44100 Hz
46  *   the second pcm (Audio1) DMA slows down irregularly and sound is garbled.
47  *
48  *   The same happens using Audio1 for captureing.
49  *
50  *   The Windows driver does not suffer of this (although it use Audio1
51  *   only for captureing). I'm unable to discover why.
52  *
53  */
54 
55 /*
56  * ES1879 NOTES:
57  * - When Zoom Video is enabled (reg 0x71 bit 6 toggled on) the PCM playback
58  *   seems to be effected (speaker_test plays a lower frequency). Can't find
59  *   anything in the datasheet to account for this, so a Video Playback Switch
60  *   control has been included to allow ZV to be enabled only when necessary.
61  *   Then again on at least one test system the 0x71 bit 6 enable bit is not
62  *   needed for ZV, so maybe the datasheet is entirely wrong here.
63  */
64 
65 #include <linux/init.h>
66 #include <linux/err.h>
67 #include <linux/isa.h>
68 #include <linux/pnp.h>
69 #include <linux/isapnp.h>
70 #include <linux/module.h>
71 #include <linux/delay.h>
72 #include <linux/io.h>
73 
74 #include <asm/dma.h>
75 #include <sound/core.h>
76 #include <sound/control.h>
77 #include <sound/pcm.h>
78 #include <sound/pcm_params.h>
79 #include <sound/mpu401.h>
80 #include <sound/opl3.h>
81 #define SNDRV_LEGACY_FIND_FREE_IRQ
82 #define SNDRV_LEGACY_FIND_FREE_DMA
83 #include <sound/initval.h>
84 
85 #define PFX "es18xx: "
86 
87 struct snd_es18xx {
88 	unsigned long port;		/* port of ESS chip */
89 	unsigned long ctrl_port;	/* Control port of ESS chip */
90 	struct resource *res_port;
91 	struct resource *res_mpu_port;
92 	struct resource *res_ctrl_port;
93 	int irq;			/* IRQ number of ESS chip */
94 	int dma1;			/* DMA1 */
95 	int dma2;			/* DMA2 */
96 	unsigned short version;		/* version of ESS chip */
97 	int caps;			/* Chip capabilities */
98 	unsigned short audio2_vol;	/* volume level of audio2 */
99 
100 	unsigned short active;		/* active channel mask */
101 	unsigned int dma1_shift;
102 	unsigned int dma2_shift;
103 
104 	struct snd_pcm *pcm;
105 	struct snd_pcm_substream *playback_a_substream;
106 	struct snd_pcm_substream *capture_a_substream;
107 	struct snd_pcm_substream *playback_b_substream;
108 
109 	struct snd_rawmidi *rmidi;
110 
111 	struct snd_kcontrol *hw_volume;
112 	struct snd_kcontrol *hw_switch;
113 	struct snd_kcontrol *master_volume;
114 	struct snd_kcontrol *master_switch;
115 
116 	spinlock_t reg_lock;
117 	spinlock_t mixer_lock;
118 #ifdef CONFIG_PM
119 	unsigned char pm_reg;
120 #endif
121 #ifdef CONFIG_PNP
122 	struct pnp_dev *dev;
123 	struct pnp_dev *devc;
124 #endif
125 };
126 
127 #define AUDIO1_IRQ	0x01
128 #define AUDIO2_IRQ	0x02
129 #define HWV_IRQ		0x04
130 #define MPU_IRQ		0x08
131 
132 #define ES18XX_PCM2	0x0001	/* Has two useable PCM */
133 #define ES18XX_SPATIALIZER 0x0002	/* Has 3D Spatializer */
134 #define ES18XX_RECMIX	0x0004	/* Has record mixer */
135 #define ES18XX_DUPLEX_MONO 0x0008	/* Has mono duplex only */
136 #define ES18XX_DUPLEX_SAME 0x0010	/* Playback and record must share the same rate */
137 #define ES18XX_NEW_RATE	0x0020	/* More precise rate setting */
138 #define ES18XX_AUXB	0x0040	/* AuxB mixer control */
139 #define ES18XX_HWV	0x0080	/* Has separate hardware volume mixer controls*/
140 #define ES18XX_MONO	0x0100	/* Mono_in mixer control */
141 #define ES18XX_I2S	0x0200	/* I2S mixer control */
142 #define ES18XX_MUTEREC	0x0400	/* Record source can be muted */
143 #define ES18XX_CONTROL	0x0800	/* Has control ports */
144 #define ES18XX_GPO_2BIT	0x1000	/* GPO0,1 controlled by PM port */
145 
146 /* Power Management */
147 #define ES18XX_PM	0x07
148 #define ES18XX_PM_GPO0	0x01
149 #define ES18XX_PM_GPO1	0x02
150 #define ES18XX_PM_PDR	0x04
151 #define ES18XX_PM_ANA	0x08
152 #define ES18XX_PM_FM	0x020
153 #define ES18XX_PM_SUS	0x080
154 
155 /* Lowlevel */
156 
157 #define DAC1 0x01
158 #define ADC1 0x02
159 #define DAC2 0x04
160 #define MILLISECOND 10000
161 
162 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
163 {
164         int i;
165 
166         for(i = MILLISECOND; i; i--)
167                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
168                         outb(val, chip->port + 0x0C);
169                         return 0;
170                 }
171 	snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
172         return -EINVAL;
173 }
174 
175 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
176 {
177         int i;
178 
179         for(i = MILLISECOND/10; i; i--)
180                 if (inb(chip->port + 0x0C) & 0x40)
181                         return inb(chip->port + 0x0A);
182 	snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
183 		   chip->port + 0x0A, inb(chip->port + 0x0A));
184         return -ENODEV;
185 }
186 
187 #undef REG_DEBUG
188 
189 static int snd_es18xx_write(struct snd_es18xx *chip,
190 			    unsigned char reg, unsigned char data)
191 {
192 	unsigned long flags;
193 	int ret;
194 
195         spin_lock_irqsave(&chip->reg_lock, flags);
196 	ret = snd_es18xx_dsp_command(chip, reg);
197 	if (ret < 0)
198 		goto end;
199         ret = snd_es18xx_dsp_command(chip, data);
200  end:
201         spin_unlock_irqrestore(&chip->reg_lock, flags);
202 #ifdef REG_DEBUG
203 	snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
204 #endif
205 	return ret;
206 }
207 
208 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
209 {
210 	unsigned long flags;
211 	int ret, data;
212         spin_lock_irqsave(&chip->reg_lock, flags);
213 	ret = snd_es18xx_dsp_command(chip, 0xC0);
214 	if (ret < 0)
215 		goto end;
216         ret = snd_es18xx_dsp_command(chip, reg);
217 	if (ret < 0)
218 		goto end;
219 	data = snd_es18xx_dsp_get_byte(chip);
220 	ret = data;
221 #ifdef REG_DEBUG
222 	snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
223 #endif
224  end:
225         spin_unlock_irqrestore(&chip->reg_lock, flags);
226 	return ret;
227 }
228 
229 /* Return old value */
230 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
231 			   unsigned char mask, unsigned char val)
232 {
233         int ret;
234 	unsigned char old, new, oval;
235 	unsigned long flags;
236         spin_lock_irqsave(&chip->reg_lock, flags);
237         ret = snd_es18xx_dsp_command(chip, 0xC0);
238 	if (ret < 0)
239 		goto end;
240         ret = snd_es18xx_dsp_command(chip, reg);
241 	if (ret < 0)
242 		goto end;
243 	ret = snd_es18xx_dsp_get_byte(chip);
244 	if (ret < 0) {
245 		goto end;
246 	}
247 	old = ret;
248 	oval = old & mask;
249 	if (val != oval) {
250 		ret = snd_es18xx_dsp_command(chip, reg);
251 		if (ret < 0)
252 			goto end;
253 		new = (old & ~mask) | (val & mask);
254 		ret = snd_es18xx_dsp_command(chip, new);
255 		if (ret < 0)
256 			goto end;
257 #ifdef REG_DEBUG
258 		snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
259 			   reg, old, new, ret);
260 #endif
261 	}
262 	ret = oval;
263  end:
264         spin_unlock_irqrestore(&chip->reg_lock, flags);
265 	return ret;
266 }
267 
268 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
269 			    unsigned char reg, unsigned char data)
270 {
271 	unsigned long flags;
272         spin_lock_irqsave(&chip->mixer_lock, flags);
273         outb(reg, chip->port + 0x04);
274         outb(data, chip->port + 0x05);
275         spin_unlock_irqrestore(&chip->mixer_lock, flags);
276 #ifdef REG_DEBUG
277 	snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
278 #endif
279 }
280 
281 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
282 {
283 	unsigned long flags;
284 	int data;
285         spin_lock_irqsave(&chip->mixer_lock, flags);
286         outb(reg, chip->port + 0x04);
287 	data = inb(chip->port + 0x05);
288         spin_unlock_irqrestore(&chip->mixer_lock, flags);
289 #ifdef REG_DEBUG
290 	snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
291 #endif
292         return data;
293 }
294 
295 /* Return old value */
296 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
297 					unsigned char mask, unsigned char val)
298 {
299 	unsigned char old, new, oval;
300 	unsigned long flags;
301         spin_lock_irqsave(&chip->mixer_lock, flags);
302         outb(reg, chip->port + 0x04);
303 	old = inb(chip->port + 0x05);
304 	oval = old & mask;
305 	if (val != oval) {
306 		new = (old & ~mask) | (val & mask);
307 		outb(new, chip->port + 0x05);
308 #ifdef REG_DEBUG
309 		snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
310 			   reg, old, new);
311 #endif
312 	}
313         spin_unlock_irqrestore(&chip->mixer_lock, flags);
314 	return oval;
315 }
316 
317 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
318 					    unsigned char mask)
319 {
320 	int old, expected, new;
321 	unsigned long flags;
322         spin_lock_irqsave(&chip->mixer_lock, flags);
323         outb(reg, chip->port + 0x04);
324 	old = inb(chip->port + 0x05);
325 	expected = old ^ mask;
326 	outb(expected, chip->port + 0x05);
327 	new = inb(chip->port + 0x05);
328         spin_unlock_irqrestore(&chip->mixer_lock, flags);
329 #ifdef REG_DEBUG
330 	snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
331 		   reg, old, expected, new);
332 #endif
333 	return expected == new;
334 }
335 
336 
337 static int snd_es18xx_reset(struct snd_es18xx *chip)
338 {
339 	int i;
340         outb(0x03, chip->port + 0x06);
341         inb(chip->port + 0x06);
342         outb(0x00, chip->port + 0x06);
343         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
344         if (inb(chip->port + 0x0A) != 0xAA)
345                 return -1;
346 	return 0;
347 }
348 
349 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
350 {
351         outb(0x02, chip->port + 0x06);
352         inb(chip->port + 0x06);
353         outb(0x00, chip->port + 0x06);
354 	return 0;
355 }
356 
357 static const struct snd_ratnum new_clocks[2] = {
358 	{
359 		.num = 793800,
360 		.den_min = 1,
361 		.den_max = 128,
362 		.den_step = 1,
363 	},
364 	{
365 		.num = 768000,
366 		.den_min = 1,
367 		.den_max = 128,
368 		.den_step = 1,
369 	}
370 };
371 
372 static const struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
373 	.nrats = 2,
374 	.rats = new_clocks,
375 };
376 
377 static const struct snd_ratnum old_clocks[2] = {
378 	{
379 		.num = 795444,
380 		.den_min = 1,
381 		.den_max = 128,
382 		.den_step = 1,
383 	},
384 	{
385 		.num = 397722,
386 		.den_min = 1,
387 		.den_max = 128,
388 		.den_step = 1,
389 	}
390 };
391 
392 static const struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
393 	.nrats = 2,
394 	.rats = old_clocks,
395 };
396 
397 
398 static void snd_es18xx_rate_set(struct snd_es18xx *chip,
399 				struct snd_pcm_substream *substream,
400 				int mode)
401 {
402 	unsigned int bits, div0;
403 	struct snd_pcm_runtime *runtime = substream->runtime;
404 	if (chip->caps & ES18XX_NEW_RATE) {
405 		if (runtime->rate_num == new_clocks[0].num)
406 			bits = 128 - runtime->rate_den;
407 		else
408 			bits = 256 - runtime->rate_den;
409 	} else {
410 		if (runtime->rate_num == old_clocks[0].num)
411 			bits = 256 - runtime->rate_den;
412 		else
413 			bits = 128 - runtime->rate_den;
414 	}
415 
416 	/* set filter register */
417 	div0 = 256 - 7160000*20/(8*82*runtime->rate);
418 
419 	if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
420 		snd_es18xx_mixer_write(chip, 0x70, bits);
421 		/*
422 		 * Comment from kernel oss driver:
423 		 * FKS: fascinating: 0x72 doesn't seem to work.
424 		 */
425 		snd_es18xx_write(chip, 0xA2, div0);
426 		snd_es18xx_mixer_write(chip, 0x72, div0);
427 	} else {
428 		snd_es18xx_write(chip, 0xA1, bits);
429 		snd_es18xx_write(chip, 0xA2, div0);
430 	}
431 }
432 
433 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
434 					 struct snd_pcm_hw_params *hw_params)
435 {
436 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
437 	int shift;
438 
439 	shift = 0;
440 	if (params_channels(hw_params) == 2)
441 		shift++;
442 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
443 		shift++;
444 
445 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
446 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
447 		    (chip->capture_a_substream) &&
448 		    params_channels(hw_params) != 1) {
449 			_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
450 			return -EBUSY;
451 		}
452 		chip->dma2_shift = shift;
453 	} else {
454 		chip->dma1_shift = shift;
455 	}
456 	return 0;
457 }
458 
459 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
460 					struct snd_pcm_substream *substream)
461 {
462 	struct snd_pcm_runtime *runtime = substream->runtime;
463 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
464 	unsigned int count = snd_pcm_lib_period_bytes(substream);
465 
466         snd_es18xx_rate_set(chip, substream, DAC2);
467 
468         /* Transfer Count Reload */
469         count = 0x10000 - count;
470         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
471         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
472 
473 	/* Set format */
474         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
475 			      ((runtime->channels == 1) ? 0x00 : 0x02) |
476 			      (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
477 			      (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
478 
479         /* Set DMA controller */
480         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
481 
482 	return 0;
483 }
484 
485 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
486 					struct snd_pcm_substream *substream,
487 					int cmd)
488 {
489 	switch (cmd) {
490 	case SNDRV_PCM_TRIGGER_START:
491 	case SNDRV_PCM_TRIGGER_RESUME:
492 		if (chip->active & DAC2)
493 			return 0;
494 		chip->active |= DAC2;
495                 /* Start DMA */
496 		if (chip->dma2 >= 4)
497 			snd_es18xx_mixer_write(chip, 0x78, 0xb3);
498 		else
499 			snd_es18xx_mixer_write(chip, 0x78, 0x93);
500 #ifdef AVOID_POPS
501 		/* Avoid pops */
502 		mdelay(100);
503 		if (chip->caps & ES18XX_PCM2)
504 			/* Restore Audio 2 volume */
505 			snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
506 		else
507 			/* Enable PCM output */
508 			snd_es18xx_dsp_command(chip, 0xD1);
509 #endif
510 		break;
511 	case SNDRV_PCM_TRIGGER_STOP:
512 	case SNDRV_PCM_TRIGGER_SUSPEND:
513 		if (!(chip->active & DAC2))
514 			return 0;
515 		chip->active &= ~DAC2;
516                 /* Stop DMA */
517                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
518 #ifdef AVOID_POPS
519 		mdelay(25);
520 		if (chip->caps & ES18XX_PCM2)
521 			/* Set Audio 2 volume to 0 */
522 			snd_es18xx_mixer_write(chip, 0x7C, 0);
523 		else
524 			/* Disable PCM output */
525 			snd_es18xx_dsp_command(chip, 0xD3);
526 #endif
527 		break;
528 	default:
529 		return -EINVAL;
530 	}
531 
532 	return 0;
533 }
534 
535 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
536 					struct snd_pcm_hw_params *hw_params)
537 {
538 	struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
539 	int shift;
540 
541 	shift = 0;
542 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
543 	    chip->playback_a_substream &&
544 	    params_channels(hw_params) != 1) {
545 		_snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
546 		return -EBUSY;
547 	}
548 	if (params_channels(hw_params) == 2)
549 		shift++;
550 	if (snd_pcm_format_width(params_format(hw_params)) == 16)
551 		shift++;
552 	chip->dma1_shift = shift;
553 	return 0;
554 }
555 
556 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
557 {
558         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
559 	struct snd_pcm_runtime *runtime = substream->runtime;
560 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
561 	unsigned int count = snd_pcm_lib_period_bytes(substream);
562 
563 	snd_es18xx_reset_fifo(chip);
564 
565         /* Set stereo/mono */
566         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
567 
568         snd_es18xx_rate_set(chip, substream, ADC1);
569 
570         /* Transfer Count Reload */
571 	count = 0x10000 - count;
572 	snd_es18xx_write(chip, 0xA4, count & 0xff);
573 	snd_es18xx_write(chip, 0xA5, count >> 8);
574 
575 #ifdef AVOID_POPS
576 	mdelay(100);
577 #endif
578 
579         /* Set format */
580         snd_es18xx_write(chip, 0xB7,
581                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
582         snd_es18xx_write(chip, 0xB7, 0x90 |
583                          ((runtime->channels == 1) ? 0x40 : 0x08) |
584                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
585                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
586 
587         /* Set DMA controller */
588         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
589 
590 	return 0;
591 }
592 
593 static int snd_es18xx_capture_trigger(struct snd_pcm_substream *substream,
594 				      int cmd)
595 {
596         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
597 
598 	switch (cmd) {
599 	case SNDRV_PCM_TRIGGER_START:
600 	case SNDRV_PCM_TRIGGER_RESUME:
601 		if (chip->active & ADC1)
602 			return 0;
603 		chip->active |= ADC1;
604                 /* Start DMA */
605                 snd_es18xx_write(chip, 0xB8, 0x0f);
606 		break;
607 	case SNDRV_PCM_TRIGGER_STOP:
608 	case SNDRV_PCM_TRIGGER_SUSPEND:
609 		if (!(chip->active & ADC1))
610 			return 0;
611 		chip->active &= ~ADC1;
612                 /* Stop DMA */
613                 snd_es18xx_write(chip, 0xB8, 0x00);
614 		break;
615 	default:
616 		return -EINVAL;
617 	}
618 
619 	return 0;
620 }
621 
622 static int snd_es18xx_playback2_prepare(struct snd_es18xx *chip,
623 					struct snd_pcm_substream *substream)
624 {
625 	struct snd_pcm_runtime *runtime = substream->runtime;
626 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
627 	unsigned int count = snd_pcm_lib_period_bytes(substream);
628 
629 	snd_es18xx_reset_fifo(chip);
630 
631         /* Set stereo/mono */
632         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
633 
634         snd_es18xx_rate_set(chip, substream, DAC1);
635 
636         /* Transfer Count Reload */
637 	count = 0x10000 - count;
638 	snd_es18xx_write(chip, 0xA4, count & 0xff);
639 	snd_es18xx_write(chip, 0xA5, count >> 8);
640 
641         /* Set format */
642         snd_es18xx_write(chip, 0xB6,
643                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
644         snd_es18xx_write(chip, 0xB7,
645                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
646         snd_es18xx_write(chip, 0xB7, 0x90 |
647                          (runtime->channels == 1 ? 0x40 : 0x08) |
648                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
649                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
650 
651         /* Set DMA controller */
652         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
653 
654 	return 0;
655 }
656 
657 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
658 					struct snd_pcm_substream *substream,
659 					int cmd)
660 {
661 	switch (cmd) {
662 	case SNDRV_PCM_TRIGGER_START:
663 	case SNDRV_PCM_TRIGGER_RESUME:
664 		if (chip->active & DAC1)
665 			return 0;
666 		chip->active |= DAC1;
667                 /* Start DMA */
668                 snd_es18xx_write(chip, 0xB8, 0x05);
669 #ifdef AVOID_POPS
670 		/* Avoid pops */
671 		mdelay(100);
672                 /* Enable Audio 1 */
673                 snd_es18xx_dsp_command(chip, 0xD1);
674 #endif
675 		break;
676 	case SNDRV_PCM_TRIGGER_STOP:
677 	case SNDRV_PCM_TRIGGER_SUSPEND:
678 		if (!(chip->active & DAC1))
679 			return 0;
680 		chip->active &= ~DAC1;
681                 /* Stop DMA */
682                 snd_es18xx_write(chip, 0xB8, 0x00);
683 #ifdef AVOID_POPS
684 		/* Avoid pops */
685 		mdelay(25);
686                 /* Disable Audio 1 */
687                 snd_es18xx_dsp_command(chip, 0xD3);
688 #endif
689 		break;
690 	default:
691 		return -EINVAL;
692 	}
693 
694 	return 0;
695 }
696 
697 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
698 {
699         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
700 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
701 		return snd_es18xx_playback1_prepare(chip, substream);
702 	else
703 		return snd_es18xx_playback2_prepare(chip, substream);
704 }
705 
706 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
707 				       int cmd)
708 {
709         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
710 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
711 		return snd_es18xx_playback1_trigger(chip, substream, cmd);
712 	else
713 		return snd_es18xx_playback2_trigger(chip, substream, cmd);
714 }
715 
716 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id)
717 {
718 	struct snd_card *card = dev_id;
719 	struct snd_es18xx *chip = card->private_data;
720 	unsigned char status;
721 
722 	if (chip->caps & ES18XX_CONTROL) {
723 		/* Read Interrupt status */
724 		status = inb(chip->ctrl_port + 6);
725 	} else {
726 		/* Read Interrupt status */
727 		status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
728 	}
729 #if 0
730 	else {
731 		status = 0;
732 		if (inb(chip->port + 0x0C) & 0x01)
733 			status |= AUDIO1_IRQ;
734 		if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
735 			status |= AUDIO2_IRQ;
736 		if ((chip->caps & ES18XX_HWV) &&
737 		    snd_es18xx_mixer_read(chip, 0x64) & 0x10)
738 			status |= HWV_IRQ;
739 	}
740 #endif
741 
742 	/* Audio 1 & Audio 2 */
743         if (status & AUDIO2_IRQ) {
744                 if (chip->active & DAC2)
745                 	snd_pcm_period_elapsed(chip->playback_a_substream);
746 		/* ack interrupt */
747                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
748         }
749         if (status & AUDIO1_IRQ) {
750                 /* ok.. capture is active */
751                 if (chip->active & ADC1)
752                 	snd_pcm_period_elapsed(chip->capture_a_substream);
753                 /* ok.. playback2 is active */
754                 else if (chip->active & DAC1)
755                 	snd_pcm_period_elapsed(chip->playback_b_substream);
756 		/* ack interrupt */
757 		inb(chip->port + 0x0E);
758         }
759 
760 	/* MPU */
761 	if ((status & MPU_IRQ) && chip->rmidi)
762 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
763 
764 	/* Hardware volume */
765 	if (status & HWV_IRQ) {
766 		int split = 0;
767 		if (chip->caps & ES18XX_HWV) {
768 			split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
769 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
770 					&chip->hw_switch->id);
771 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
772 					&chip->hw_volume->id);
773 		}
774 		if (!split) {
775 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
776 					&chip->master_switch->id);
777 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
778 					&chip->master_volume->id);
779 		}
780 		/* ack interrupt */
781 		snd_es18xx_mixer_write(chip, 0x66, 0x00);
782 	}
783 	return IRQ_HANDLED;
784 }
785 
786 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
787 {
788         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
789 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
790 	int pos;
791 
792 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
793 		if (!(chip->active & DAC2))
794 			return 0;
795 		pos = snd_dma_pointer(chip->dma2, size);
796 		return pos >> chip->dma2_shift;
797 	} else {
798 		if (!(chip->active & DAC1))
799 			return 0;
800 		pos = snd_dma_pointer(chip->dma1, size);
801 		return pos >> chip->dma1_shift;
802 	}
803 }
804 
805 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
806 {
807         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
808 	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
809 	int pos;
810 
811         if (!(chip->active & ADC1))
812                 return 0;
813 	pos = snd_dma_pointer(chip->dma1, size);
814 	return pos >> chip->dma1_shift;
815 }
816 
817 static const struct snd_pcm_hardware snd_es18xx_playback =
818 {
819 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
820 				 SNDRV_PCM_INFO_RESUME |
821 				 SNDRV_PCM_INFO_MMAP_VALID),
822 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
823 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
824 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
825 	.rate_min =		4000,
826 	.rate_max =		48000,
827 	.channels_min =		1,
828 	.channels_max =		2,
829 	.buffer_bytes_max =	65536,
830 	.period_bytes_min =	64,
831 	.period_bytes_max =	65536,
832 	.periods_min =		1,
833 	.periods_max =		1024,
834 	.fifo_size =		0,
835 };
836 
837 static const struct snd_pcm_hardware snd_es18xx_capture =
838 {
839 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
840 				 SNDRV_PCM_INFO_RESUME |
841 				 SNDRV_PCM_INFO_MMAP_VALID),
842 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
843 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
844 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
845 	.rate_min =		4000,
846 	.rate_max =		48000,
847 	.channels_min =		1,
848 	.channels_max =		2,
849 	.buffer_bytes_max =	65536,
850 	.period_bytes_min =	64,
851 	.period_bytes_max =	65536,
852 	.periods_min =		1,
853 	.periods_max =		1024,
854 	.fifo_size =		0,
855 };
856 
857 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
858 {
859 	struct snd_pcm_runtime *runtime = substream->runtime;
860         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
861 
862 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
863 		if ((chip->caps & ES18XX_DUPLEX_MONO) &&
864 		    chip->capture_a_substream &&
865 		    chip->capture_a_substream->runtime->channels != 1)
866 			return -EAGAIN;
867 		chip->playback_a_substream = substream;
868 	} else if (substream->number <= 1) {
869 		if (chip->capture_a_substream)
870 			return -EAGAIN;
871 		chip->playback_b_substream = substream;
872 	} else {
873 		snd_BUG();
874 		return -EINVAL;
875 	}
876 	substream->runtime->hw = snd_es18xx_playback;
877 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
878 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
879         return 0;
880 }
881 
882 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
883 {
884 	struct snd_pcm_runtime *runtime = substream->runtime;
885         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
886 
887         if (chip->playback_b_substream)
888                 return -EAGAIN;
889 	if ((chip->caps & ES18XX_DUPLEX_MONO) &&
890 	    chip->playback_a_substream &&
891 	    chip->playback_a_substream->runtime->channels != 1)
892 		return -EAGAIN;
893         chip->capture_a_substream = substream;
894 	substream->runtime->hw = snd_es18xx_capture;
895 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
896 				      (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
897         return 0;
898 }
899 
900 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
901 {
902         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
903 
904 	if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
905 		chip->playback_a_substream = NULL;
906 	else
907 		chip->playback_b_substream = NULL;
908 
909 	return 0;
910 }
911 
912 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
913 {
914         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
915 
916         chip->capture_a_substream = NULL;
917         return 0;
918 }
919 
920 /*
921  *  MIXER part
922  */
923 
924 /* Record source mux routines:
925  * Depending on the chipset this mux switches between 4, 5, or 8 possible inputs.
926  * bit table for the 4/5 source mux:
927  * reg 1C:
928  *  b2 b1 b0   muxSource
929  *   x  0  x   microphone
930  *   0  1  x   CD
931  *   1  1  0   line
932  *   1  1  1   mixer
933  * if it's "mixer" and it's a 5 source mux chipset then reg 7A bit 3 determines
934  * either the play mixer or the capture mixer.
935  *
936  * "map4Source" translates from source number to reg bit pattern
937  * "invMap4Source" translates from reg bit pattern to source number
938  */
939 
940 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
941 {
942 	static const char * const texts5Source[5] = {
943 		"Mic", "CD", "Line", "Master", "Mix"
944 	};
945 	static const char * const texts8Source[8] = {
946 		"Mic", "Mic Master", "CD", "AOUT",
947 		"Mic1", "Mix", "Line", "Master"
948 	};
949 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
950 
951 	switch (chip->version) {
952 	case 0x1868:
953 	case 0x1878:
954 		return snd_ctl_enum_info(uinfo, 1, 4, texts5Source);
955 	case 0x1887:
956 	case 0x1888:
957 		return snd_ctl_enum_info(uinfo, 1, 5, texts5Source);
958 	case 0x1869: /* DS somewhat contradictory for 1869: could be 5 or 8 */
959 	case 0x1879:
960 		return snd_ctl_enum_info(uinfo, 1, 8, texts8Source);
961 	default:
962 		return -EINVAL;
963 	}
964 }
965 
966 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
967 {
968 	static const unsigned char invMap4Source[8] = {0, 0, 1, 1, 0, 0, 2, 3};
969 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
970 	int muxSource = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
971 	if (!(chip->version == 0x1869 || chip->version == 0x1879)) {
972 		muxSource = invMap4Source[muxSource];
973 		if (muxSource==3 &&
974 		    (chip->version == 0x1887 || chip->version == 0x1888) &&
975 		    (snd_es18xx_mixer_read(chip, 0x7a) & 0x08)
976 		)
977 			muxSource = 4;
978 	}
979 	ucontrol->value.enumerated.item[0] = muxSource;
980 	return 0;
981 }
982 
983 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
984 {
985 	static const unsigned char map4Source[4] = {0, 2, 6, 7};
986 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
987 	unsigned char val = ucontrol->value.enumerated.item[0];
988 	unsigned char retVal = 0;
989 
990 	switch (chip->version) {
991  /* 5 source chips */
992 	case 0x1887:
993 	case 0x1888:
994 		if (val > 4)
995 			return -EINVAL;
996 		if (val == 4) {
997 			retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x08) != 0x08;
998 			val = 3;
999 		} else
1000 			retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x00) != 0x00;
1001 		fallthrough;
1002  /* 4 source chips */
1003 	case 0x1868:
1004 	case 0x1878:
1005 		if (val > 3)
1006 			return -EINVAL;
1007 		val = map4Source[val];
1008 		break;
1009  /* 8 source chips */
1010 	case 0x1869:
1011 	case 0x1879:
1012 		if (val > 7)
1013 			return -EINVAL;
1014 		break;
1015 	default:
1016 		return -EINVAL;
1017 	}
1018 	return (snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val) || retVal;
1019 }
1020 
1021 #define snd_es18xx_info_spatializer_enable	snd_ctl_boolean_mono_info
1022 
1023 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1024 {
1025 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1026 	unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
1027 	ucontrol->value.integer.value[0] = !!(val & 8);
1028 	return 0;
1029 }
1030 
1031 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1032 {
1033 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1034 	unsigned char oval, nval;
1035 	int change;
1036 	nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1037 	oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
1038 	change = nval != oval;
1039 	if (change) {
1040 		snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1041 		snd_es18xx_mixer_write(chip, 0x50, nval);
1042 	}
1043 	return change;
1044 }
1045 
1046 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1047 {
1048 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1049 	uinfo->count = 2;
1050 	uinfo->value.integer.min = 0;
1051 	uinfo->value.integer.max = 63;
1052 	return 0;
1053 }
1054 
1055 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1056 {
1057 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1058 	ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1059 	ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1060 	return 0;
1061 }
1062 
1063 #define snd_es18xx_info_hw_switch	snd_ctl_boolean_stereo_info
1064 
1065 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1066 {
1067 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1068 	ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1069 	ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1070 	return 0;
1071 }
1072 
1073 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1074 {
1075 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1076 	chip->master_volume = NULL;
1077 	chip->master_switch = NULL;
1078 	chip->hw_volume = NULL;
1079 	chip->hw_switch = NULL;
1080 }
1081 
1082 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1083 			       unsigned char mask, unsigned char val)
1084 {
1085 	if (reg < 0xa0)
1086 		return snd_es18xx_mixer_bits(chip, reg, mask, val);
1087 	else
1088 		return snd_es18xx_bits(chip, reg, mask, val);
1089 }
1090 
1091 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1092 {
1093 	if (reg < 0xa0)
1094 		return snd_es18xx_mixer_read(chip, reg);
1095 	else
1096 		return snd_es18xx_read(chip, reg);
1097 }
1098 
1099 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, flags) \
1100 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1101   .info = snd_es18xx_info_single, \
1102   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1103   .private_value = reg | (shift << 8) | (mask << 16) | (flags << 24) }
1104 
1105 #define ES18XX_FL_INVERT	(1 << 0)
1106 #define ES18XX_FL_PMPORT	(1 << 1)
1107 
1108 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1109 {
1110 	int mask = (kcontrol->private_value >> 16) & 0xff;
1111 
1112 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1113 	uinfo->count = 1;
1114 	uinfo->value.integer.min = 0;
1115 	uinfo->value.integer.max = mask;
1116 	return 0;
1117 }
1118 
1119 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1120 {
1121 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1122 	int reg = kcontrol->private_value & 0xff;
1123 	int shift = (kcontrol->private_value >> 8) & 0xff;
1124 	int mask = (kcontrol->private_value >> 16) & 0xff;
1125 	int invert = (kcontrol->private_value >> 24) & ES18XX_FL_INVERT;
1126 	int pm_port = (kcontrol->private_value >> 24) & ES18XX_FL_PMPORT;
1127 	int val;
1128 
1129 	if (pm_port)
1130 		val = inb(chip->port + ES18XX_PM);
1131 	else
1132 		val = snd_es18xx_reg_read(chip, reg);
1133 	ucontrol->value.integer.value[0] = (val >> shift) & mask;
1134 	if (invert)
1135 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1136 	return 0;
1137 }
1138 
1139 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1140 {
1141 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1142 	int reg = kcontrol->private_value & 0xff;
1143 	int shift = (kcontrol->private_value >> 8) & 0xff;
1144 	int mask = (kcontrol->private_value >> 16) & 0xff;
1145 	int invert = (kcontrol->private_value >> 24) & ES18XX_FL_INVERT;
1146 	int pm_port = (kcontrol->private_value >> 24) & ES18XX_FL_PMPORT;
1147 	unsigned char val;
1148 
1149 	val = (ucontrol->value.integer.value[0] & mask);
1150 	if (invert)
1151 		val = mask - val;
1152 	mask <<= shift;
1153 	val <<= shift;
1154 	if (pm_port) {
1155 		unsigned char cur = inb(chip->port + ES18XX_PM);
1156 
1157 		if ((cur & mask) == val)
1158 			return 0;
1159 		outb((cur & ~mask) | val, chip->port + ES18XX_PM);
1160 		return 1;
1161 	}
1162 
1163 	return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1164 }
1165 
1166 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1167 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1168   .info = snd_es18xx_info_double, \
1169   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1170   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1171 
1172 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1173 {
1174 	int mask = (kcontrol->private_value >> 24) & 0xff;
1175 
1176 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1177 	uinfo->count = 2;
1178 	uinfo->value.integer.min = 0;
1179 	uinfo->value.integer.max = mask;
1180 	return 0;
1181 }
1182 
1183 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1184 {
1185 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1186 	int left_reg = kcontrol->private_value & 0xff;
1187 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1188 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1189 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1190 	int mask = (kcontrol->private_value >> 24) & 0xff;
1191 	int invert = (kcontrol->private_value >> 22) & 1;
1192 	unsigned char left, right;
1193 
1194 	left = snd_es18xx_reg_read(chip, left_reg);
1195 	if (left_reg != right_reg)
1196 		right = snd_es18xx_reg_read(chip, right_reg);
1197 	else
1198 		right = left;
1199 	ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1200 	ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1201 	if (invert) {
1202 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1203 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1204 	}
1205 	return 0;
1206 }
1207 
1208 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1209 {
1210 	struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1211 	int left_reg = kcontrol->private_value & 0xff;
1212 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
1213 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
1214 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
1215 	int mask = (kcontrol->private_value >> 24) & 0xff;
1216 	int invert = (kcontrol->private_value >> 22) & 1;
1217 	int change;
1218 	unsigned char val1, val2, mask1, mask2;
1219 
1220 	val1 = ucontrol->value.integer.value[0] & mask;
1221 	val2 = ucontrol->value.integer.value[1] & mask;
1222 	if (invert) {
1223 		val1 = mask - val1;
1224 		val2 = mask - val2;
1225 	}
1226 	val1 <<= shift_left;
1227 	val2 <<= shift_right;
1228 	mask1 = mask << shift_left;
1229 	mask2 = mask << shift_right;
1230 	if (left_reg != right_reg) {
1231 		change = 0;
1232 		if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1233 			change = 1;
1234 		if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1235 			change = 1;
1236 	} else {
1237 		change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2,
1238 					      val1 | val2) != (val1 | val2));
1239 	}
1240 	return change;
1241 }
1242 
1243 /* Mixer controls
1244  * These arrays contain setup data for mixer controls.
1245  *
1246  * The controls that are universal to all chipsets are fully initialized
1247  * here.
1248  */
1249 static const struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1250 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1251 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1252 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1253 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1254 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1255 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1256 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1257 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1258 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1259 {
1260 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1261 	.name = "Capture Source",
1262 	.info = snd_es18xx_info_mux,
1263 	.get = snd_es18xx_get_mux,
1264 	.put = snd_es18xx_put_mux,
1265 }
1266 };
1267 
1268 static const struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1269 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1270 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1271 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1272 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1273 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1274 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1275 };
1276 
1277 /*
1278  * The chipset specific mixer controls
1279  */
1280 static const struct snd_kcontrol_new snd_es18xx_opt_speaker =
1281 	ES18XX_SINGLE("Beep Playback Volume", 0, 0x3c, 0, 7, 0);
1282 
1283 static const struct snd_kcontrol_new snd_es18xx_opt_1869[] = {
1284 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, ES18XX_FL_INVERT),
1285 ES18XX_SINGLE("Video Playback Switch", 0, 0x7f, 0, 1, 0),
1286 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1287 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1288 };
1289 
1290 static const struct snd_kcontrol_new snd_es18xx_opt_1878 =
1291 	ES18XX_DOUBLE("Video Playback Volume", 0, 0x68, 0x68, 4, 0, 15, 0);
1292 
1293 static const struct snd_kcontrol_new snd_es18xx_opt_1879[] = {
1294 ES18XX_SINGLE("Video Playback Switch", 0, 0x71, 6, 1, 0),
1295 ES18XX_DOUBLE("Video Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1296 ES18XX_DOUBLE("Video Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1297 };
1298 
1299 static const struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1300 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1301 };
1302 
1303 static const struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1304 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1305 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1306 };
1307 
1308 static const struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1309 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1310 {
1311 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1312 	.name = "3D Control - Switch",
1313 	.info = snd_es18xx_info_spatializer_enable,
1314 	.get = snd_es18xx_get_spatializer_enable,
1315 	.put = snd_es18xx_put_spatializer_enable,
1316 }
1317 };
1318 
1319 static const struct snd_kcontrol_new snd_es18xx_micpre1_control =
1320 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1321 
1322 static const struct snd_kcontrol_new snd_es18xx_micpre2_control =
1323 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1324 
1325 static const struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1326 {
1327 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1328 	.name = "Hardware Master Playback Volume",
1329 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1330 	.info = snd_es18xx_info_hw_volume,
1331 	.get = snd_es18xx_get_hw_volume,
1332 },
1333 {
1334 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1335 	.name = "Hardware Master Playback Switch",
1336 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
1337 	.info = snd_es18xx_info_hw_switch,
1338 	.get = snd_es18xx_get_hw_switch,
1339 },
1340 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1341 };
1342 
1343 static const struct snd_kcontrol_new snd_es18xx_opt_gpo_2bit[] = {
1344 ES18XX_SINGLE("GPO0 Switch", 0, ES18XX_PM, 0, 1, ES18XX_FL_PMPORT),
1345 ES18XX_SINGLE("GPO1 Switch", 0, ES18XX_PM, 1, 1, ES18XX_FL_PMPORT),
1346 };
1347 
1348 static int snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1349 {
1350 	int data;
1351 
1352 	outb(reg, chip->ctrl_port);
1353 	data = inb(chip->ctrl_port + 1);
1354 	return data;
1355 }
1356 
1357 static void snd_es18xx_config_write(struct snd_es18xx *chip,
1358 				    unsigned char reg, unsigned char data)
1359 {
1360 	/* No need for spinlocks, this function is used only in
1361 	   otherwise protected init code */
1362 	outb(reg, chip->ctrl_port);
1363 	outb(data, chip->ctrl_port + 1);
1364 #ifdef REG_DEBUG
1365 	snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1366 #endif
1367 }
1368 
1369 static int snd_es18xx_initialize(struct snd_es18xx *chip,
1370 				 unsigned long mpu_port,
1371 				 unsigned long fm_port)
1372 {
1373 	int mask = 0;
1374 
1375         /* enable extended mode */
1376         snd_es18xx_dsp_command(chip, 0xC6);
1377 	/* Reset mixer registers */
1378 	snd_es18xx_mixer_write(chip, 0x00, 0x00);
1379 
1380         /* Audio 1 DMA demand mode (4 bytes/request) */
1381         snd_es18xx_write(chip, 0xB9, 2);
1382 	if (chip->caps & ES18XX_CONTROL) {
1383 		/* Hardware volume IRQ */
1384 		snd_es18xx_config_write(chip, 0x27, chip->irq);
1385 		if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
1386 			/* FM I/O */
1387 			snd_es18xx_config_write(chip, 0x62, fm_port >> 8);
1388 			snd_es18xx_config_write(chip, 0x63, fm_port & 0xff);
1389 		}
1390 		if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1391 			/* MPU-401 I/O */
1392 			snd_es18xx_config_write(chip, 0x64, mpu_port >> 8);
1393 			snd_es18xx_config_write(chip, 0x65, mpu_port & 0xff);
1394 			/* MPU-401 IRQ */
1395 			snd_es18xx_config_write(chip, 0x28, chip->irq);
1396 		}
1397 		/* Audio1 IRQ */
1398 		snd_es18xx_config_write(chip, 0x70, chip->irq);
1399 		/* Audio2 IRQ */
1400 		snd_es18xx_config_write(chip, 0x72, chip->irq);
1401 		/* Audio1 DMA */
1402 		snd_es18xx_config_write(chip, 0x74, chip->dma1);
1403 		/* Audio2 DMA */
1404 		snd_es18xx_config_write(chip, 0x75, chip->dma2);
1405 
1406 		/* Enable Audio 1 IRQ */
1407 		snd_es18xx_write(chip, 0xB1, 0x50);
1408 		/* Enable Audio 2 IRQ */
1409 		snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1410 		/* Enable Audio 1 DMA */
1411 		snd_es18xx_write(chip, 0xB2, 0x50);
1412 		/* Enable MPU and hardware volume interrupt */
1413 		snd_es18xx_mixer_write(chip, 0x64, 0x42);
1414 		/* Enable ESS wavetable input */
1415 		snd_es18xx_mixer_bits(chip, 0x48, 0x10, 0x10);
1416 	}
1417 	else {
1418 		int irqmask, dma1mask, dma2mask;
1419 		switch (chip->irq) {
1420 		case 2:
1421 		case 9:
1422 			irqmask = 0;
1423 			break;
1424 		case 5:
1425 			irqmask = 1;
1426 			break;
1427 		case 7:
1428 			irqmask = 2;
1429 			break;
1430 		case 10:
1431 			irqmask = 3;
1432 			break;
1433 		default:
1434 			snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1435 			return -ENODEV;
1436 		}
1437 		switch (chip->dma1) {
1438 		case 0:
1439 			dma1mask = 1;
1440 			break;
1441 		case 1:
1442 			dma1mask = 2;
1443 			break;
1444 		case 3:
1445 			dma1mask = 3;
1446 			break;
1447 		default:
1448 			snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1449 			return -ENODEV;
1450 		}
1451 		switch (chip->dma2) {
1452 		case 0:
1453 			dma2mask = 0;
1454 			break;
1455 		case 1:
1456 			dma2mask = 1;
1457 			break;
1458 		case 3:
1459 			dma2mask = 2;
1460 			break;
1461 		case 5:
1462 			dma2mask = 3;
1463 			break;
1464 		default:
1465 			snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1466 			return -ENODEV;
1467 		}
1468 
1469 		/* Enable and set Audio 1 IRQ */
1470 		snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1471 		/* Enable and set Audio 1 DMA */
1472 		snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1473 		/* Set Audio 2 DMA */
1474 		snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1475 		/* Enable Audio 2 IRQ and DMA
1476 		   Set capture mixer input */
1477 		snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1478 		/* Enable and set hardware volume interrupt */
1479 		snd_es18xx_mixer_write(chip, 0x64, 0x06);
1480 		if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1481 			/* MPU401 share irq with audio
1482 			   Joystick enabled
1483 			   FM enabled */
1484 			snd_es18xx_mixer_write(chip, 0x40,
1485 					       0x43 | (mpu_port & 0xf0) >> 1);
1486 		}
1487 		snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1488 	}
1489 	if (chip->caps & ES18XX_NEW_RATE) {
1490 		/* Change behaviour of register A1
1491 		   4x oversampling
1492 		   2nd channel DAC asynchronous */
1493 		snd_es18xx_mixer_write(chip, 0x71, 0x32);
1494 	}
1495 	if (!(chip->caps & ES18XX_PCM2)) {
1496 		/* Enable DMA FIFO */
1497 		snd_es18xx_write(chip, 0xB7, 0x80);
1498 	}
1499 	if (chip->caps & ES18XX_SPATIALIZER) {
1500 		/* Set spatializer parameters to recommended values */
1501 		snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1502 		snd_es18xx_mixer_write(chip, 0x56, 0x95);
1503 		snd_es18xx_mixer_write(chip, 0x58, 0x94);
1504 		snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1505 	}
1506 	/* Flip the "enable I2S" bits for those chipsets that need it */
1507 	switch (chip->version) {
1508 	case 0x1879:
1509 		//Leaving I2S enabled on the 1879 screws up the PCM playback (rate effected somehow)
1510 		//so a Switch control has been added to toggle this 0x71 bit on/off:
1511 		//snd_es18xx_mixer_bits(chip, 0x71, 0x40, 0x40);
1512 		/* Note: we fall through on purpose here. */
1513 	case 0x1878:
1514 		snd_es18xx_config_write(chip, 0x29, snd_es18xx_config_read(chip, 0x29) | 0x40);
1515 		break;
1516 	}
1517 	/* Mute input source */
1518 	if (chip->caps & ES18XX_MUTEREC)
1519 		mask = 0x10;
1520 	if (chip->caps & ES18XX_RECMIX)
1521 		snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1522 	else {
1523 		snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1524 		snd_es18xx_write(chip, 0xb4, 0x00);
1525 	}
1526 #ifndef AVOID_POPS
1527 	/* Enable PCM output */
1528 	snd_es18xx_dsp_command(chip, 0xD1);
1529 #endif
1530 
1531         return 0;
1532 }
1533 
1534 static int snd_es18xx_identify(struct snd_es18xx *chip)
1535 {
1536 	int hi,lo;
1537 
1538 	/* reset */
1539 	if (snd_es18xx_reset(chip) < 0) {
1540 		snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1541 		return -ENODEV;
1542 	}
1543 
1544 	snd_es18xx_dsp_command(chip, 0xe7);
1545 	hi = snd_es18xx_dsp_get_byte(chip);
1546 	if (hi < 0) {
1547 		return hi;
1548 	}
1549 	lo = snd_es18xx_dsp_get_byte(chip);
1550 	if ((lo & 0xf0) != 0x80) {
1551 		return -ENODEV;
1552 	}
1553 	if (hi == 0x48) {
1554 		chip->version = 0x488;
1555 		return 0;
1556 	}
1557 	if (hi != 0x68) {
1558 		return -ENODEV;
1559 	}
1560 	if ((lo & 0x0f) < 8) {
1561 		chip->version = 0x688;
1562 		return 0;
1563 	}
1564 
1565         outb(0x40, chip->port + 0x04);
1566 	udelay(10);
1567 	hi = inb(chip->port + 0x05);
1568 	udelay(10);
1569 	lo = inb(chip->port + 0x05);
1570 	if (hi != lo) {
1571 		chip->version = hi << 8 | lo;
1572 		chip->ctrl_port = inb(chip->port + 0x05) << 8;
1573 		udelay(10);
1574 		chip->ctrl_port += inb(chip->port + 0x05);
1575 
1576 		chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL");
1577 		if (!chip->res_ctrl_port) {
1578 			snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1579 			return -EBUSY;
1580 		}
1581 
1582 		return 0;
1583 	}
1584 
1585 	/* If has Hardware volume */
1586 	if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1587 		/* If has Audio2 */
1588 		if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1589 			/* If has volume count */
1590 			if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1591 				chip->version = 0x1887;
1592 			} else {
1593 				chip->version = 0x1888;
1594 			}
1595 		} else {
1596 			chip->version = 0x1788;
1597 		}
1598 	}
1599 	else
1600 		chip->version = 0x1688;
1601 	return 0;
1602 }
1603 
1604 static int snd_es18xx_probe(struct snd_es18xx *chip,
1605 			    unsigned long mpu_port,
1606 			    unsigned long fm_port)
1607 {
1608 	if (snd_es18xx_identify(chip) < 0) {
1609 		snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1610                 return -ENODEV;
1611 	}
1612 
1613 	switch (chip->version) {
1614 	case 0x1868:
1615 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL | ES18XX_GPO_2BIT;
1616 		break;
1617 	case 0x1869:
1618 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV | ES18XX_GPO_2BIT;
1619 		break;
1620 	case 0x1878:
1621 		chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL;
1622 		break;
1623 	case 0x1879:
1624 		chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1625 		break;
1626 	case 0x1887:
1627 	case 0x1888:
1628 		chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME | ES18XX_GPO_2BIT;
1629 		break;
1630 	default:
1631 		snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1632                            chip->port, chip->version);
1633                 return -ENODEV;
1634         }
1635 
1636         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1637 
1638 	if (chip->dma1 == chip->dma2)
1639 		chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1640 
1641 	return snd_es18xx_initialize(chip, mpu_port, fm_port);
1642 }
1643 
1644 static const struct snd_pcm_ops snd_es18xx_playback_ops = {
1645 	.open =		snd_es18xx_playback_open,
1646 	.close =	snd_es18xx_playback_close,
1647 	.hw_params =	snd_es18xx_playback_hw_params,
1648 	.prepare =	snd_es18xx_playback_prepare,
1649 	.trigger =	snd_es18xx_playback_trigger,
1650 	.pointer =	snd_es18xx_playback_pointer,
1651 };
1652 
1653 static const struct snd_pcm_ops snd_es18xx_capture_ops = {
1654 	.open =		snd_es18xx_capture_open,
1655 	.close =	snd_es18xx_capture_close,
1656 	.hw_params =	snd_es18xx_capture_hw_params,
1657 	.prepare =	snd_es18xx_capture_prepare,
1658 	.trigger =	snd_es18xx_capture_trigger,
1659 	.pointer =	snd_es18xx_capture_pointer,
1660 };
1661 
1662 static int snd_es18xx_pcm(struct snd_card *card, int device)
1663 {
1664 	struct snd_es18xx *chip = card->private_data;
1665         struct snd_pcm *pcm;
1666 	char str[16];
1667 	int err;
1668 
1669 	sprintf(str, "ES%x", chip->version);
1670 	if (chip->caps & ES18XX_PCM2)
1671 		err = snd_pcm_new(card, str, device, 2, 1, &pcm);
1672 	else
1673 		err = snd_pcm_new(card, str, device, 1, 1, &pcm);
1674         if (err < 0)
1675                 return err;
1676 
1677 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1678 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1679 
1680 	/* global setup */
1681         pcm->private_data = chip;
1682         pcm->info_flags = 0;
1683 	if (chip->caps & ES18XX_DUPLEX_SAME)
1684 		pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1685 	if (! (chip->caps & ES18XX_PCM2))
1686 		pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1687 	sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1688         chip->pcm = pcm;
1689 
1690 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, card->dev,
1691 				       64*1024,
1692 				       chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1693 	return 0;
1694 }
1695 
1696 /* Power Management support functions */
1697 #ifdef CONFIG_PM
1698 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1699 {
1700 	struct snd_es18xx *chip = card->private_data;
1701 
1702 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1703 
1704 	/* power down */
1705 	chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1706 	chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1707 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1708 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1709 
1710 	return 0;
1711 }
1712 
1713 static int snd_es18xx_resume(struct snd_card *card)
1714 {
1715 	struct snd_es18xx *chip = card->private_data;
1716 
1717 	/* restore PM register, we won't wake till (not 0x07) i/o activity though */
1718 	snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1719 
1720 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1721 	return 0;
1722 }
1723 #endif /* CONFIG_PM */
1724 
1725 static int snd_es18xx_free(struct snd_card *card)
1726 {
1727 	struct snd_es18xx *chip = card->private_data;
1728 
1729 	release_and_free_resource(chip->res_port);
1730 	release_and_free_resource(chip->res_ctrl_port);
1731 	release_and_free_resource(chip->res_mpu_port);
1732 	if (chip->irq >= 0)
1733 		free_irq(chip->irq, (void *) card);
1734 	if (chip->dma1 >= 0) {
1735 		disable_dma(chip->dma1);
1736 		free_dma(chip->dma1);
1737 	}
1738 	if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1739 		disable_dma(chip->dma2);
1740 		free_dma(chip->dma2);
1741 	}
1742 	return 0;
1743 }
1744 
1745 static int snd_es18xx_dev_free(struct snd_device *device)
1746 {
1747 	return snd_es18xx_free(device->card);
1748 }
1749 
1750 static int snd_es18xx_new_device(struct snd_card *card,
1751 				 unsigned long port,
1752 				 unsigned long mpu_port,
1753 				 unsigned long fm_port,
1754 				 int irq, int dma1, int dma2)
1755 {
1756 	struct snd_es18xx *chip = card->private_data;
1757 	static const struct snd_device_ops ops = {
1758 		.dev_free =	snd_es18xx_dev_free,
1759         };
1760 	int err;
1761 
1762 	spin_lock_init(&chip->reg_lock);
1763  	spin_lock_init(&chip->mixer_lock);
1764         chip->port = port;
1765         chip->irq = -1;
1766         chip->dma1 = -1;
1767         chip->dma2 = -1;
1768         chip->audio2_vol = 0x00;
1769 	chip->active = 0;
1770 
1771 	chip->res_port = request_region(port, 16, "ES18xx");
1772 	if (chip->res_port == NULL) {
1773 		snd_es18xx_free(card);
1774 		snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1775 		return -EBUSY;
1776 	}
1777 
1778 	if (request_irq(irq, snd_es18xx_interrupt, 0, "ES18xx",
1779 			(void *) card)) {
1780 		snd_es18xx_free(card);
1781 		snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1782 		return -EBUSY;
1783 	}
1784 	chip->irq = irq;
1785 	card->sync_irq = chip->irq;
1786 
1787 	if (request_dma(dma1, "ES18xx DMA 1")) {
1788 		snd_es18xx_free(card);
1789 		snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1790 		return -EBUSY;
1791 	}
1792 	chip->dma1 = dma1;
1793 
1794 	if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1795 		snd_es18xx_free(card);
1796 		snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1797 		return -EBUSY;
1798 	}
1799 	chip->dma2 = dma2;
1800 
1801 	if (snd_es18xx_probe(chip, mpu_port, fm_port) < 0) {
1802 		snd_es18xx_free(card);
1803 		return -ENODEV;
1804 	}
1805 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1806 	if (err < 0) {
1807 		snd_es18xx_free(card);
1808 		return err;
1809 	}
1810         return 0;
1811 }
1812 
1813 static int snd_es18xx_mixer(struct snd_card *card)
1814 {
1815 	struct snd_es18xx *chip = card->private_data;
1816 	int err;
1817 	unsigned int idx;
1818 
1819 	strcpy(card->mixername, chip->pcm->name);
1820 
1821 	for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1822 		struct snd_kcontrol *kctl;
1823 		kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1824 		if (chip->caps & ES18XX_HWV) {
1825 			switch (idx) {
1826 			case 0:
1827 				chip->master_volume = kctl;
1828 				kctl->private_free = snd_es18xx_hwv_free;
1829 				break;
1830 			case 1:
1831 				chip->master_switch = kctl;
1832 				kctl->private_free = snd_es18xx_hwv_free;
1833 				break;
1834 			}
1835 		}
1836 		err = snd_ctl_add(card, kctl);
1837 		if (err < 0)
1838 			return err;
1839 	}
1840 	if (chip->caps & ES18XX_PCM2) {
1841 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1842 			err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip));
1843 			if (err < 0)
1844 				return err;
1845 		}
1846 	} else {
1847 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1848 			err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip));
1849 			if (err < 0)
1850 				return err;
1851 		}
1852 	}
1853 
1854 	if (chip->caps & ES18XX_RECMIX) {
1855 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1856 			err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip));
1857 			if (err < 0)
1858 				return err;
1859 		}
1860 	}
1861 	switch (chip->version) {
1862 	default:
1863 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip));
1864 		if (err < 0)
1865 			return err;
1866 		break;
1867 	case 0x1869:
1868 	case 0x1879:
1869 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip));
1870 		if (err < 0)
1871 			return err;
1872 		break;
1873 	}
1874 	if (chip->caps & ES18XX_SPATIALIZER) {
1875 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1876 			err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip));
1877 			if (err < 0)
1878 				return err;
1879 		}
1880 	}
1881 	if (chip->caps & ES18XX_HWV) {
1882 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1883 			struct snd_kcontrol *kctl;
1884 			kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1885 			if (idx == 0)
1886 				chip->hw_volume = kctl;
1887 			else
1888 				chip->hw_switch = kctl;
1889 			kctl->private_free = snd_es18xx_hwv_free;
1890 			err = snd_ctl_add(card, kctl);
1891 			if (err < 0)
1892 				return err;
1893 
1894 		}
1895 	}
1896 	/* finish initializing other chipset specific controls
1897 	 */
1898 	if (chip->version != 0x1868) {
1899 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_speaker,
1900 						     chip));
1901 		if (err < 0)
1902 			return err;
1903 	}
1904 	if (chip->version == 0x1869) {
1905 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1869); idx++) {
1906 			err = snd_ctl_add(card,
1907 					  snd_ctl_new1(&snd_es18xx_opt_1869[idx],
1908 						       chip));
1909 			if (err < 0)
1910 				return err;
1911 		}
1912 	} else if (chip->version == 0x1878) {
1913 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_1878,
1914 						     chip));
1915 		if (err < 0)
1916 			return err;
1917 	} else if (chip->version == 0x1879) {
1918 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1879); idx++) {
1919 			err = snd_ctl_add(card,
1920 					  snd_ctl_new1(&snd_es18xx_opt_1879[idx],
1921 						       chip));
1922 			if (err < 0)
1923 				return err;
1924 		}
1925 	}
1926 	if (chip->caps & ES18XX_GPO_2BIT) {
1927 		for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_gpo_2bit); idx++) {
1928 			err = snd_ctl_add(card,
1929 					  snd_ctl_new1(&snd_es18xx_opt_gpo_2bit[idx],
1930 						       chip));
1931 			if (err < 0)
1932 				return err;
1933 		}
1934 	}
1935 	return 0;
1936 }
1937 
1938 
1939 /* Card level */
1940 
1941 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");
1942 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1943 MODULE_LICENSE("GPL");
1944 
1945 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
1946 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
1947 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1948 #ifdef CONFIG_PNP
1949 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
1950 #endif
1951 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260,0x280 */
1952 #ifndef CONFIG_PNP
1953 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
1954 #else
1955 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1956 #endif
1957 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1958 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
1959 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
1960 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
1961 
1962 module_param_array(index, int, NULL, 0444);
1963 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
1964 module_param_array(id, charp, NULL, 0444);
1965 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
1966 module_param_array(enable, bool, NULL, 0444);
1967 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
1968 #ifdef CONFIG_PNP
1969 module_param_array(isapnp, bool, NULL, 0444);
1970 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
1971 #endif
1972 module_param_hw_array(port, long, ioport, NULL, 0444);
1973 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
1974 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
1975 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
1976 module_param_hw_array(fm_port, long, ioport, NULL, 0444);
1977 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
1978 module_param_hw_array(irq, int, irq, NULL, 0444);
1979 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
1980 module_param_hw_array(dma1, int, dma, NULL, 0444);
1981 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
1982 module_param_hw_array(dma2, int, dma, NULL, 0444);
1983 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
1984 
1985 #ifdef CONFIG_PNP
1986 static int isa_registered;
1987 static int pnp_registered;
1988 static int pnpc_registered;
1989 
1990 static const struct pnp_device_id snd_audiodrive_pnpbiosids[] = {
1991 	{ .id = "ESS1869" },
1992 	{ .id = "ESS1879" },
1993 	{ .id = "" }		/* end */
1994 };
1995 
1996 MODULE_DEVICE_TABLE(pnp, snd_audiodrive_pnpbiosids);
1997 
1998 /* PnP main device initialization */
1999 static int snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
2000 {
2001 	if (pnp_activate_dev(pdev) < 0) {
2002 		snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
2003 		return -EBUSY;
2004 	}
2005 	/* ok. hack using Vendor-Defined Card-Level registers */
2006 	/* skip csn and logdev initialization - already done in isapnp_configure */
2007 	if (pnp_device_is_isapnp(pdev)) {
2008 		isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
2009 		isapnp_write_byte(0x27, pnp_irq(pdev, 0));	/* Hardware Volume IRQ Number */
2010 		if (mpu_port[dev] != SNDRV_AUTO_PORT)
2011 			isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
2012 		isapnp_write_byte(0x72, pnp_irq(pdev, 0));	/* second IRQ */
2013 		isapnp_cfg_end();
2014 	}
2015 	port[dev] = pnp_port_start(pdev, 0);
2016 	fm_port[dev] = pnp_port_start(pdev, 1);
2017 	mpu_port[dev] = pnp_port_start(pdev, 2);
2018 	dma1[dev] = pnp_dma(pdev, 0);
2019 	dma2[dev] = pnp_dma(pdev, 1);
2020 	irq[dev] = pnp_irq(pdev, 0);
2021 	snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
2022 	snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
2023 	return 0;
2024 }
2025 
2026 static int snd_audiodrive_pnp(int dev, struct snd_es18xx *chip,
2027 			      struct pnp_dev *pdev)
2028 {
2029 	chip->dev = pdev;
2030 	if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2031 		return -EBUSY;
2032 	return 0;
2033 }
2034 
2035 static const struct pnp_card_device_id snd_audiodrive_pnpids[] = {
2036 	/* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
2037 	{ .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
2038 	/* ESS 1868 (integrated on Maxisound Cards) */
2039 	{ .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
2040 	/* ESS 1868 (integrated on Maxisound Cards) */
2041 	{ .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
2042 	/* ESS ES1869 Plug and Play AudioDrive */
2043 	{ .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
2044 	/* ESS 1869 */
2045 	{ .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
2046 	/* ESS 1878 */
2047 	{ .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
2048 	/* ESS 1879 */
2049 	{ .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
2050 	/* --- */
2051 	{ .id = "" } /* end */
2052 };
2053 
2054 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
2055 
2056 static int snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip,
2057 			       struct pnp_card_link *card,
2058 			       const struct pnp_card_device_id *id)
2059 {
2060 	chip->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
2061 	if (chip->dev == NULL)
2062 		return -EBUSY;
2063 
2064 	chip->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
2065 	if (chip->devc == NULL)
2066 		return -EBUSY;
2067 
2068 	/* Control port initialization */
2069 	if (pnp_activate_dev(chip->devc) < 0) {
2070 		snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
2071 		return -EAGAIN;
2072 	}
2073 	snd_printdd("pnp: port=0x%llx\n",
2074 			(unsigned long long)pnp_port_start(chip->devc, 0));
2075 	if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2076 		return -EBUSY;
2077 
2078 	return 0;
2079 }
2080 #endif /* CONFIG_PNP */
2081 
2082 #ifdef CONFIG_PNP
2083 #define is_isapnp_selected(dev)		isapnp[dev]
2084 #else
2085 #define is_isapnp_selected(dev)		0
2086 #endif
2087 
2088 static int snd_es18xx_card_new(struct device *pdev, int dev,
2089 			       struct snd_card **cardp)
2090 {
2091 	return snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
2092 			    sizeof(struct snd_es18xx), cardp);
2093 }
2094 
2095 static int snd_audiodrive_probe(struct snd_card *card, int dev)
2096 {
2097 	struct snd_es18xx *chip = card->private_data;
2098 	struct snd_opl3 *opl3;
2099 	int err;
2100 
2101 	err = snd_es18xx_new_device(card,
2102 				    port[dev], mpu_port[dev], fm_port[dev],
2103 				    irq[dev], dma1[dev], dma2[dev]);
2104 	if (err < 0)
2105 		return err;
2106 
2107 	sprintf(card->driver, "ES%x", chip->version);
2108 
2109 	sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2110 	if (dma1[dev] != dma2[dev])
2111 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2112 			card->shortname,
2113 			chip->port,
2114 			irq[dev], dma1[dev], dma2[dev]);
2115 	else
2116 		sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2117 			card->shortname,
2118 			chip->port,
2119 			irq[dev], dma1[dev]);
2120 
2121 	err = snd_es18xx_pcm(card, 0);
2122 	if (err < 0)
2123 		return err;
2124 
2125 	err = snd_es18xx_mixer(card);
2126 	if (err < 0)
2127 		return err;
2128 
2129 	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2130 		if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
2131 				    OPL3_HW_OPL3, 0, &opl3) < 0) {
2132 			snd_printk(KERN_WARNING PFX
2133 				   "opl3 not detected at 0x%lx\n",
2134 				   fm_port[dev]);
2135 		} else {
2136 			err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
2137 			if (err < 0)
2138 				return err;
2139 		}
2140 	}
2141 
2142 	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2143 		err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2144 					  mpu_port[dev], MPU401_INFO_IRQ_HOOK,
2145 					  -1, &chip->rmidi);
2146 		if (err < 0)
2147 			return err;
2148 	}
2149 
2150 	return snd_card_register(card);
2151 }
2152 
2153 static int snd_es18xx_isa_match(struct device *pdev, unsigned int dev)
2154 {
2155 	return enable[dev] && !is_isapnp_selected(dev);
2156 }
2157 
2158 static int snd_es18xx_isa_probe1(int dev, struct device *devptr)
2159 {
2160 	struct snd_card *card;
2161 	int err;
2162 
2163 	err = snd_es18xx_card_new(devptr, dev, &card);
2164 	if (err < 0)
2165 		return err;
2166 	err = snd_audiodrive_probe(card, dev);
2167 	if (err < 0) {
2168 		snd_card_free(card);
2169 		return err;
2170 	}
2171 	dev_set_drvdata(devptr, card);
2172 	return 0;
2173 }
2174 
2175 static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
2176 {
2177 	int err;
2178 	static const int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2179 	static const int possible_dmas[] = {1, 0, 3, 5, -1};
2180 
2181 	if (irq[dev] == SNDRV_AUTO_IRQ) {
2182 		irq[dev] = snd_legacy_find_free_irq(possible_irqs);
2183 		if (irq[dev] < 0) {
2184 			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2185 			return -EBUSY;
2186 		}
2187 	}
2188 	if (dma1[dev] == SNDRV_AUTO_DMA) {
2189 		dma1[dev] = snd_legacy_find_free_dma(possible_dmas);
2190 		if (dma1[dev] < 0) {
2191 			snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2192 			return -EBUSY;
2193 		}
2194 	}
2195 	if (dma2[dev] == SNDRV_AUTO_DMA) {
2196 		dma2[dev] = snd_legacy_find_free_dma(possible_dmas);
2197 		if (dma2[dev] < 0) {
2198 			snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2199 			return -EBUSY;
2200 		}
2201 	}
2202 
2203 	if (port[dev] != SNDRV_AUTO_PORT) {
2204 		return snd_es18xx_isa_probe1(dev, pdev);
2205 	} else {
2206 		static const unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2207 		int i;
2208 		for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2209 			port[dev] = possible_ports[i];
2210 			err = snd_es18xx_isa_probe1(dev, pdev);
2211 			if (! err)
2212 				return 0;
2213 		}
2214 		return err;
2215 	}
2216 }
2217 
2218 static void snd_es18xx_isa_remove(struct device *devptr,
2219 				  unsigned int dev)
2220 {
2221 	snd_card_free(dev_get_drvdata(devptr));
2222 }
2223 
2224 #ifdef CONFIG_PM
2225 static int snd_es18xx_isa_suspend(struct device *dev, unsigned int n,
2226 				  pm_message_t state)
2227 {
2228 	return snd_es18xx_suspend(dev_get_drvdata(dev), state);
2229 }
2230 
2231 static int snd_es18xx_isa_resume(struct device *dev, unsigned int n)
2232 {
2233 	return snd_es18xx_resume(dev_get_drvdata(dev));
2234 }
2235 #endif
2236 
2237 #define DEV_NAME "es18xx"
2238 
2239 static struct isa_driver snd_es18xx_isa_driver = {
2240 	.match		= snd_es18xx_isa_match,
2241 	.probe		= snd_es18xx_isa_probe,
2242 	.remove		= snd_es18xx_isa_remove,
2243 #ifdef CONFIG_PM
2244 	.suspend	= snd_es18xx_isa_suspend,
2245 	.resume		= snd_es18xx_isa_resume,
2246 #endif
2247 	.driver		= {
2248 		.name	= DEV_NAME
2249 	},
2250 };
2251 
2252 
2253 #ifdef CONFIG_PNP
2254 static int snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
2255 				     const struct pnp_device_id *id)
2256 {
2257 	static int dev;
2258 	int err;
2259 	struct snd_card *card;
2260 
2261 	if (pnp_device_is_isapnp(pdev))
2262 		return -ENOENT;	/* we have another procedure - card */
2263 	for (; dev < SNDRV_CARDS; dev++) {
2264 		if (enable[dev] && isapnp[dev])
2265 			break;
2266 	}
2267 	if (dev >= SNDRV_CARDS)
2268 		return -ENODEV;
2269 
2270 	err = snd_es18xx_card_new(&pdev->dev, dev, &card);
2271 	if (err < 0)
2272 		return err;
2273 	err = snd_audiodrive_pnp(dev, card->private_data, pdev);
2274 	if (err < 0) {
2275 		snd_card_free(card);
2276 		return err;
2277 	}
2278 	err = snd_audiodrive_probe(card, dev);
2279 	if (err < 0) {
2280 		snd_card_free(card);
2281 		return err;
2282 	}
2283 	pnp_set_drvdata(pdev, card);
2284 	dev++;
2285 	return 0;
2286 }
2287 
2288 static void snd_audiodrive_pnp_remove(struct pnp_dev *pdev)
2289 {
2290 	snd_card_free(pnp_get_drvdata(pdev));
2291 }
2292 
2293 #ifdef CONFIG_PM
2294 static int snd_audiodrive_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
2295 {
2296 	return snd_es18xx_suspend(pnp_get_drvdata(pdev), state);
2297 }
2298 static int snd_audiodrive_pnp_resume(struct pnp_dev *pdev)
2299 {
2300 	return snd_es18xx_resume(pnp_get_drvdata(pdev));
2301 }
2302 #endif
2303 
2304 static struct pnp_driver es18xx_pnp_driver = {
2305 	.name = "es18xx-pnpbios",
2306 	.id_table = snd_audiodrive_pnpbiosids,
2307 	.probe = snd_audiodrive_pnp_detect,
2308 	.remove = snd_audiodrive_pnp_remove,
2309 #ifdef CONFIG_PM
2310 	.suspend = snd_audiodrive_pnp_suspend,
2311 	.resume = snd_audiodrive_pnp_resume,
2312 #endif
2313 };
2314 
2315 static int snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
2316 				      const struct pnp_card_device_id *pid)
2317 {
2318 	static int dev;
2319 	struct snd_card *card;
2320 	int res;
2321 
2322 	for ( ; dev < SNDRV_CARDS; dev++) {
2323 		if (enable[dev] && isapnp[dev])
2324 			break;
2325 	}
2326 	if (dev >= SNDRV_CARDS)
2327 		return -ENODEV;
2328 
2329 	res = snd_es18xx_card_new(&pcard->card->dev, dev, &card);
2330 	if (res < 0)
2331 		return res;
2332 
2333 	res = snd_audiodrive_pnpc(dev, card->private_data, pcard, pid);
2334 	if (res < 0) {
2335 		snd_card_free(card);
2336 		return res;
2337 	}
2338 	res = snd_audiodrive_probe(card, dev);
2339 	if (res < 0) {
2340 		snd_card_free(card);
2341 		return res;
2342 	}
2343 
2344 	pnp_set_card_drvdata(pcard, card);
2345 	dev++;
2346 	return 0;
2347 }
2348 
2349 static void snd_audiodrive_pnpc_remove(struct pnp_card_link *pcard)
2350 {
2351 	snd_card_free(pnp_get_card_drvdata(pcard));
2352 	pnp_set_card_drvdata(pcard, NULL);
2353 }
2354 
2355 #ifdef CONFIG_PM
2356 static int snd_audiodrive_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state)
2357 {
2358 	return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2359 }
2360 
2361 static int snd_audiodrive_pnpc_resume(struct pnp_card_link *pcard)
2362 {
2363 	return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2364 }
2365 
2366 #endif
2367 
2368 static struct pnp_card_driver es18xx_pnpc_driver = {
2369 	.flags = PNP_DRIVER_RES_DISABLE,
2370 	.name = "es18xx",
2371 	.id_table = snd_audiodrive_pnpids,
2372 	.probe = snd_audiodrive_pnpc_detect,
2373 	.remove = snd_audiodrive_pnpc_remove,
2374 #ifdef CONFIG_PM
2375 	.suspend	= snd_audiodrive_pnpc_suspend,
2376 	.resume		= snd_audiodrive_pnpc_resume,
2377 #endif
2378 };
2379 #endif /* CONFIG_PNP */
2380 
2381 static int __init alsa_card_es18xx_init(void)
2382 {
2383 	int err;
2384 
2385 	err = isa_register_driver(&snd_es18xx_isa_driver, SNDRV_CARDS);
2386 #ifdef CONFIG_PNP
2387 	if (!err)
2388 		isa_registered = 1;
2389 
2390 	err = pnp_register_driver(&es18xx_pnp_driver);
2391 	if (!err)
2392 		pnp_registered = 1;
2393 
2394 	err = pnp_register_card_driver(&es18xx_pnpc_driver);
2395 	if (!err)
2396 		pnpc_registered = 1;
2397 
2398 	if (isa_registered || pnp_registered)
2399 		err = 0;
2400 #endif
2401 	return err;
2402 }
2403 
2404 static void __exit alsa_card_es18xx_exit(void)
2405 {
2406 #ifdef CONFIG_PNP
2407 	if (pnpc_registered)
2408 		pnp_unregister_card_driver(&es18xx_pnpc_driver);
2409 	if (pnp_registered)
2410 		pnp_unregister_driver(&es18xx_pnp_driver);
2411 	if (isa_registered)
2412 #endif
2413 		isa_unregister_driver(&snd_es18xx_isa_driver);
2414 }
2415 
2416 module_init(alsa_card_es18xx_init)
2417 module_exit(alsa_card_es18xx_exit)
2418