[ALSA] es18xx - Use platform_device
[linux-2.6.git] / sound / isa / es18xx.c
1 /*
2  *  Driver for generic ESS AudioDrive ES18xx soundcards
3  *  Copyright (c) by Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>
4  *  Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
5  *
6  *
7  *   This program is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU General Public License as published by
9  *   the Free Software Foundation; either version 2 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This program is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *   GNU General Public License for more details.
16  *
17  *   You should have received a copy of the GNU General Public License
18  *   along with this program; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  *
21  */
22 /* GENERAL NOTES:
23  *
24  * BUGS:
25  * - There are pops (we can't delay in trigger function, cause midlevel 
26  *   often need to trigger down and then up very quickly).
27  *   Any ideas?
28  * - Support for 16 bit DMA seems to be broken. I've no hardware to tune it.
29  */
30
31 /*
32  * ES1868  NOTES:
33  * - The chip has one half duplex pcm (with very limited full duplex support).
34  *
35  * - Duplex stereophonic sound is impossible.
36  * - Record and playback must share the same frequency rate.
37  *
38  * - The driver use dma2 for playback and dma1 for capture.
39  */
40
41 /*
42  * ES1869 NOTES:
43  *
44  * - there are a first full duplex pcm and a second playback only pcm
45  *   (incompatible with first pcm capture)
46  * 
47  * - there is support for the capture volume and ESS Spatializer 3D effect.
48  *
49  * - contrarily to some pages in DS_1869.PDF the rates can be set
50  *   independently.
51  *
52  * BUGS:
53  *
54  * - There is a major trouble I noted:
55  *
56  *   using both channel for playback stereo 16 bit samples at 44100 Hz
57  *   the second pcm (Audio1) DMA slows down irregularly and sound is garbled.
58  *   
59  *   The same happens using Audio1 for captureing.
60  *
61  *   The Windows driver does not suffer of this (although it use Audio1
62  *   only for captureing). I'm unable to discover why.
63  *
64  */
65
66
67 #include <sound/driver.h>
68 #include <linux/init.h>
69 #include <linux/err.h>
70 #include <linux/platform_device.h>
71 #include <linux/slab.h>
72 #include <linux/pnp.h>
73 #include <linux/isapnp.h>
74 #include <linux/moduleparam.h>
75 #include <asm/io.h>
76 #include <asm/dma.h>
77 #include <sound/core.h>
78 #include <sound/control.h>
79 #include <sound/pcm.h>
80 #include <sound/pcm_params.h>
81 #include <sound/mpu401.h>
82 #include <sound/opl3.h>
83 #define SNDRV_LEGACY_FIND_FREE_IRQ
84 #define SNDRV_LEGACY_FIND_FREE_DMA
85 #include <sound/initval.h>
86
87 #define PFX "es18xx: "
88
89 struct snd_es18xx {
90         unsigned long port;             /* port of ESS chip */
91         unsigned long mpu_port;         /* MPU-401 port of ESS chip */
92         unsigned long fm_port;          /* FM port */
93         unsigned long ctrl_port;        /* Control port of ESS chip */
94         struct resource *res_port;
95         struct resource *res_mpu_port;
96         struct resource *res_ctrl_port;
97         int irq;                        /* IRQ number of ESS chip */
98         int dma1;                       /* DMA1 */
99         int dma2;                       /* DMA2 */
100         unsigned short version;         /* version of ESS chip */
101         int caps;                       /* Chip capabilities */
102         unsigned short audio2_vol;      /* volume level of audio2 */
103
104         unsigned short active;          /* active channel mask */
105         unsigned int dma1_size;
106         unsigned int dma2_size;
107         unsigned int dma1_shift;
108         unsigned int dma2_shift;
109
110         struct snd_card *card;
111         struct snd_pcm *pcm;
112         struct snd_pcm_substream *playback_a_substream;
113         struct snd_pcm_substream *capture_a_substream;
114         struct snd_pcm_substream *playback_b_substream;
115
116         struct snd_rawmidi *rmidi;
117
118         struct snd_kcontrol *hw_volume;
119         struct snd_kcontrol *hw_switch;
120         struct snd_kcontrol *master_volume;
121         struct snd_kcontrol *master_switch;
122
123         spinlock_t reg_lock;
124         spinlock_t mixer_lock;
125         spinlock_t ctrl_lock;
126 #ifdef CONFIG_PM
127         unsigned char pm_reg;
128 #endif
129 };
130
131 struct snd_audiodrive {
132         struct snd_es18xx *chip;
133 #ifdef CONFIG_PNP
134         struct pnp_dev *dev;
135         struct pnp_dev *devc;
136 #endif
137 };
138
139 #define AUDIO1_IRQ      0x01
140 #define AUDIO2_IRQ      0x02
141 #define HWV_IRQ         0x04
142 #define MPU_IRQ         0x08
143
144 #define ES18XX_PCM2     0x0001  /* Has two useable PCM */
145 #define ES18XX_SPATIALIZER 0x0002       /* Has 3D Spatializer */
146 #define ES18XX_RECMIX   0x0004  /* Has record mixer */
147 #define ES18XX_DUPLEX_MONO 0x0008       /* Has mono duplex only */
148 #define ES18XX_DUPLEX_SAME 0x0010       /* Playback and record must share the same rate */
149 #define ES18XX_NEW_RATE 0x0020  /* More precise rate setting */
150 #define ES18XX_AUXB     0x0040  /* AuxB mixer control */
151 #define ES18XX_HWV      0x0080  /* Has hardware volume */
152 #define ES18XX_MONO     0x0100  /* Mono_in mixer control */
153 #define ES18XX_I2S      0x0200  /* I2S mixer control */
154 #define ES18XX_MUTEREC  0x0400  /* Record source can be muted */
155 #define ES18XX_CONTROL  0x0800  /* Has control ports */
156
157 /* Power Management */
158 #define ES18XX_PM       0x07
159 #define ES18XX_PM_GPO0  0x01
160 #define ES18XX_PM_GPO1  0x02
161 #define ES18XX_PM_PDR   0x04
162 #define ES18XX_PM_ANA   0x08
163 #define ES18XX_PM_FM    0x020
164 #define ES18XX_PM_SUS   0x080
165
166 /* Lowlevel */
167
168 #define DAC1 0x01
169 #define ADC1 0x02
170 #define DAC2 0x04
171 #define MILLISECOND 10000
172
173 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
174 {
175         int i;
176
177         for(i = MILLISECOND; i; i--)
178                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
179                         outb(val, chip->port + 0x0C);
180                         return 0;
181                 }
182         snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
183         return -EINVAL;
184 }
185
186 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
187 {
188         int i;
189
190         for(i = MILLISECOND/10; i; i--)
191                 if (inb(chip->port + 0x0C) & 0x40)
192                         return inb(chip->port + 0x0A);
193         snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
194                    chip->port + 0x0A, inb(chip->port + 0x0A));
195         return -ENODEV;
196 }
197
198 #undef REG_DEBUG
199
200 static int snd_es18xx_write(struct snd_es18xx *chip,
201                             unsigned char reg, unsigned char data)
202 {
203         unsigned long flags;
204         int ret;
205         
206         spin_lock_irqsave(&chip->reg_lock, flags);
207         ret = snd_es18xx_dsp_command(chip, reg);
208         if (ret < 0)
209                 goto end;
210         ret = snd_es18xx_dsp_command(chip, data);
211  end:
212         spin_unlock_irqrestore(&chip->reg_lock, flags);
213 #ifdef REG_DEBUG
214         snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
215 #endif
216         return ret;
217 }
218
219 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
220 {
221         unsigned long flags;
222         int ret, data;
223         spin_lock_irqsave(&chip->reg_lock, flags);
224         ret = snd_es18xx_dsp_command(chip, 0xC0);
225         if (ret < 0)
226                 goto end;
227         ret = snd_es18xx_dsp_command(chip, reg);
228         if (ret < 0)
229                 goto end;
230         data = snd_es18xx_dsp_get_byte(chip);
231         ret = data;
232 #ifdef REG_DEBUG
233         snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
234 #endif
235  end:
236         spin_unlock_irqrestore(&chip->reg_lock, flags);
237         return ret;
238 }
239
240 /* Return old value */
241 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
242                            unsigned char mask, unsigned char val)
243 {
244         int ret;
245         unsigned char old, new, oval;
246         unsigned long flags;
247         spin_lock_irqsave(&chip->reg_lock, flags);
248         ret = snd_es18xx_dsp_command(chip, 0xC0);
249         if (ret < 0)
250                 goto end;
251         ret = snd_es18xx_dsp_command(chip, reg);
252         if (ret < 0)
253                 goto end;
254         ret = snd_es18xx_dsp_get_byte(chip);
255         if (ret < 0) {
256                 goto end;
257         }
258         old = ret;
259         oval = old & mask;
260         if (val != oval) {
261                 ret = snd_es18xx_dsp_command(chip, reg);
262                 if (ret < 0)
263                         goto end;
264                 new = (old & ~mask) | (val & mask);
265                 ret = snd_es18xx_dsp_command(chip, new);
266                 if (ret < 0)
267                         goto end;
268 #ifdef REG_DEBUG
269                 snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
270                            reg, old, new, ret);
271 #endif
272         }
273         ret = oval;
274  end:
275         spin_unlock_irqrestore(&chip->reg_lock, flags);
276         return ret;
277 }
278
279 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
280                             unsigned char reg, unsigned char data)
281 {
282         unsigned long flags;
283         spin_lock_irqsave(&chip->mixer_lock, flags);
284         outb(reg, chip->port + 0x04);
285         outb(data, chip->port + 0x05);
286         spin_unlock_irqrestore(&chip->mixer_lock, flags);
287 #ifdef REG_DEBUG
288         snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
289 #endif
290 }
291
292 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
293 {
294         unsigned long flags;
295         int data;
296         spin_lock_irqsave(&chip->mixer_lock, flags);
297         outb(reg, chip->port + 0x04);
298         data = inb(chip->port + 0x05);
299         spin_unlock_irqrestore(&chip->mixer_lock, flags);
300 #ifdef REG_DEBUG
301         snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
302 #endif
303         return data;
304 }
305
306 /* Return old value */
307 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
308                                         unsigned char mask, unsigned char val)
309 {
310         unsigned char old, new, oval;
311         unsigned long flags;
312         spin_lock_irqsave(&chip->mixer_lock, flags);
313         outb(reg, chip->port + 0x04);
314         old = inb(chip->port + 0x05);
315         oval = old & mask;
316         if (val != oval) {
317                 new = (old & ~mask) | (val & mask);
318                 outb(new, chip->port + 0x05);
319 #ifdef REG_DEBUG
320                 snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
321                            reg, old, new);
322 #endif
323         }
324         spin_unlock_irqrestore(&chip->mixer_lock, flags);
325         return oval;
326 }
327
328 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
329                                             unsigned char mask)
330 {
331         int old, expected, new;
332         unsigned long flags;
333         spin_lock_irqsave(&chip->mixer_lock, flags);
334         outb(reg, chip->port + 0x04);
335         old = inb(chip->port + 0x05);
336         expected = old ^ mask;
337         outb(expected, chip->port + 0x05);
338         new = inb(chip->port + 0x05);
339         spin_unlock_irqrestore(&chip->mixer_lock, flags);
340 #ifdef REG_DEBUG
341         snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
342                    reg, old, expected, new);
343 #endif
344         return expected == new;
345 }
346
347
348 static int snd_es18xx_reset(struct snd_es18xx *chip)
349 {
350         int i;
351         outb(0x03, chip->port + 0x06);
352         inb(chip->port + 0x06);
353         outb(0x00, chip->port + 0x06);
354         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
355         if (inb(chip->port + 0x0A) != 0xAA)
356                 return -1;
357         return 0;
358 }
359
360 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
361 {
362         outb(0x02, chip->port + 0x06);
363         inb(chip->port + 0x06);
364         outb(0x00, chip->port + 0x06);
365         return 0;
366 }
367
368 static struct snd_ratnum new_clocks[2] = {
369         {
370                 .num = 793800,
371                 .den_min = 1,
372                 .den_max = 128,
373                 .den_step = 1,
374         },
375         {
376                 .num = 768000,
377                 .den_min = 1,
378                 .den_max = 128,
379                 .den_step = 1,
380         }
381 };
382
383 static struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
384         .nrats = 2,
385         .rats = new_clocks,
386 };
387
388 static struct snd_ratnum old_clocks[2] = {
389         {
390                 .num = 795444,
391                 .den_min = 1,
392                 .den_max = 128,
393                 .den_step = 1,
394         },
395         {
396                 .num = 397722,
397                 .den_min = 1,
398                 .den_max = 128,
399                 .den_step = 1,
400         }
401 };
402
403 static struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
404         .nrats = 2,
405         .rats = old_clocks,
406 };
407
408
409 static void snd_es18xx_rate_set(struct snd_es18xx *chip, 
410                                 struct snd_pcm_substream *substream,
411                                 int mode)
412 {
413         unsigned int bits, div0;
414         struct snd_pcm_runtime *runtime = substream->runtime;
415         if (chip->caps & ES18XX_NEW_RATE) {
416                 if (runtime->rate_num == new_clocks[0].num)
417                         bits = 128 - runtime->rate_den;
418                 else
419                         bits = 256 - runtime->rate_den;
420         } else {
421                 if (runtime->rate_num == old_clocks[0].num)
422                         bits = 256 - runtime->rate_den;
423                 else
424                         bits = 128 - runtime->rate_den;
425         }
426
427         /* set filter register */
428         div0 = 256 - 7160000*20/(8*82*runtime->rate);
429                 
430         if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
431                 snd_es18xx_mixer_write(chip, 0x70, bits);
432                 /*
433                  * Comment from kernel oss driver:
434                  * FKS: fascinating: 0x72 doesn't seem to work.
435                  */
436                 snd_es18xx_write(chip, 0xA2, div0);
437                 snd_es18xx_mixer_write(chip, 0x72, div0);
438         } else {
439                 snd_es18xx_write(chip, 0xA1, bits);
440                 snd_es18xx_write(chip, 0xA2, div0);
441         }
442 }
443
444 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
445                                          struct snd_pcm_hw_params *hw_params)
446 {
447         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
448         int shift, err;
449
450         shift = 0;
451         if (params_channels(hw_params) == 2)
452                 shift++;
453         if (snd_pcm_format_width(params_format(hw_params)) == 16)
454                 shift++;
455
456         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
457                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
458                     (chip->capture_a_substream) &&
459                     params_channels(hw_params) != 1) {
460                         _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
461                         return -EBUSY;
462                 }
463                 chip->dma2_shift = shift;
464         } else {
465                 chip->dma1_shift = shift;
466         }
467         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
468                 return err;
469         return 0;
470 }
471
472 static int snd_es18xx_pcm_hw_free(struct snd_pcm_substream *substream)
473 {
474         return snd_pcm_lib_free_pages(substream);
475 }
476
477 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
478                                         struct snd_pcm_substream *substream)
479 {
480         struct snd_pcm_runtime *runtime = substream->runtime;
481         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
482         unsigned int count = snd_pcm_lib_period_bytes(substream);
483
484         chip->dma2_size = size;
485
486         snd_es18xx_rate_set(chip, substream, DAC2);
487
488         /* Transfer Count Reload */
489         count = 0x10000 - count;
490         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
491         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
492
493         /* Set format */
494         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
495                               ((runtime->channels == 1) ? 0x00 : 0x02) |
496                               (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
497                               (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
498
499         /* Set DMA controller */
500         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
501
502         return 0;
503 }
504
505 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
506                                         struct snd_pcm_substream *substream,
507                                         int cmd)
508 {
509         switch (cmd) {
510         case SNDRV_PCM_TRIGGER_START:
511         case SNDRV_PCM_TRIGGER_RESUME:
512                 if (chip->active & DAC2)
513                         return 0;
514                 chip->active |= DAC2;
515                 /* Start DMA */
516                 if (chip->dma2 >= 4)
517                         snd_es18xx_mixer_write(chip, 0x78, 0xb3);
518                 else
519                         snd_es18xx_mixer_write(chip, 0x78, 0x93);
520 #ifdef AVOID_POPS
521                 /* Avoid pops */
522                 udelay(100000);
523                 if (chip->caps & ES18XX_PCM2)
524                         /* Restore Audio 2 volume */
525                         snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
526                 else
527                         /* Enable PCM output */
528                         snd_es18xx_dsp_command(chip, 0xD1);
529 #endif
530                 break;
531         case SNDRV_PCM_TRIGGER_STOP:
532         case SNDRV_PCM_TRIGGER_SUSPEND:
533                 if (!(chip->active & DAC2))
534                         return 0;
535                 chip->active &= ~DAC2;
536                 /* Stop DMA */
537                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
538 #ifdef AVOID_POPS
539                 udelay(25000);
540                 if (chip->caps & ES18XX_PCM2)
541                         /* Set Audio 2 volume to 0 */
542                         snd_es18xx_mixer_write(chip, 0x7C, 0);
543                 else
544                         /* Disable PCM output */
545                         snd_es18xx_dsp_command(chip, 0xD3);
546 #endif
547                 break;
548         default:
549                 return -EINVAL;
550         }
551
552         return 0;
553 }
554
555 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
556                                         struct snd_pcm_hw_params *hw_params)
557 {
558         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
559         int shift, err;
560
561         shift = 0;
562         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
563             chip->playback_a_substream &&
564             params_channels(hw_params) != 1) {
565                 _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
566                 return -EBUSY;
567         }
568         if (params_channels(hw_params) == 2)
569                 shift++;
570         if (snd_pcm_format_width(params_format(hw_params)) == 16)
571                 shift++;
572         chip->dma1_shift = shift;
573         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
574                 return err;
575         return 0;
576 }
577
578 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
579 {
580         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
581         struct snd_pcm_runtime *runtime = substream->runtime;
582         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
583         unsigned int count = snd_pcm_lib_period_bytes(substream);
584
585         chip->dma1_size = size;
586
587         snd_es18xx_reset_fifo(chip);
588
589         /* Set stereo/mono */
590         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
591
592         snd_es18xx_rate_set(chip, substream, ADC1);
593
594         /* Transfer Count Reload */
595         count = 0x10000 - count;
596         snd_es18xx_write(chip, 0xA4, count & 0xff);
597         snd_es18xx_write(chip, 0xA5, count >> 8);
598
599 #ifdef AVOID_POPS
600         udelay(100000);
601 #endif
602
603         /* Set format */
604         snd_es18xx_write(chip, 0xB7, 
605                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
606         snd_es18xx_write(chip, 0xB7, 0x90 |
607                          ((runtime->channels == 1) ? 0x40 : 0x08) |
608                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
609                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
610
611         /* Set DMA controler */
612         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
613
614         return 0;
615 }
616
617 static int snd_es18xx_capture_trigger(struct snd_pcm_substream *substream,
618                                       int cmd)
619 {
620         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
621
622         switch (cmd) {
623         case SNDRV_PCM_TRIGGER_START:
624         case SNDRV_PCM_TRIGGER_RESUME:
625                 if (chip->active & ADC1)
626                         return 0;
627                 chip->active |= ADC1;
628                 /* Start DMA */
629                 snd_es18xx_write(chip, 0xB8, 0x0f);
630                 break;
631         case SNDRV_PCM_TRIGGER_STOP:
632         case SNDRV_PCM_TRIGGER_SUSPEND:
633                 if (!(chip->active & ADC1))
634                         return 0;
635                 chip->active &= ~ADC1;
636                 /* Stop DMA */
637                 snd_es18xx_write(chip, 0xB8, 0x00);
638                 break;
639         default:
640                 return -EINVAL;
641         }
642
643         return 0;
644 }
645
646 static int snd_es18xx_playback2_prepare(struct snd_es18xx *chip,
647                                         struct snd_pcm_substream *substream)
648 {
649         struct snd_pcm_runtime *runtime = substream->runtime;
650         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
651         unsigned int count = snd_pcm_lib_period_bytes(substream);
652
653         chip->dma1_size = size;
654
655         snd_es18xx_reset_fifo(chip);
656
657         /* Set stereo/mono */
658         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
659
660         snd_es18xx_rate_set(chip, substream, DAC1);
661
662         /* Transfer Count Reload */
663         count = 0x10000 - count;
664         snd_es18xx_write(chip, 0xA4, count & 0xff);
665         snd_es18xx_write(chip, 0xA5, count >> 8);
666
667         /* Set format */
668         snd_es18xx_write(chip, 0xB6,
669                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
670         snd_es18xx_write(chip, 0xB7, 
671                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
672         snd_es18xx_write(chip, 0xB7, 0x90 |
673                          (runtime->channels == 1 ? 0x40 : 0x08) |
674                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
675                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
676
677         /* Set DMA controler */
678         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
679
680         return 0;
681 }
682
683 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
684                                         struct snd_pcm_substream *substream,
685                                         int cmd)
686 {
687         switch (cmd) {
688         case SNDRV_PCM_TRIGGER_START:
689         case SNDRV_PCM_TRIGGER_RESUME:
690                 if (chip->active & DAC1)
691                         return 0;
692                 chip->active |= DAC1;
693                 /* Start DMA */
694                 snd_es18xx_write(chip, 0xB8, 0x05);
695 #ifdef AVOID_POPS
696                 /* Avoid pops */
697                 udelay(100000);
698                 /* Enable Audio 1 */
699                 snd_es18xx_dsp_command(chip, 0xD1);
700 #endif
701                 break;
702         case SNDRV_PCM_TRIGGER_STOP:
703         case SNDRV_PCM_TRIGGER_SUSPEND:
704                 if (!(chip->active & DAC1))
705                         return 0;
706                 chip->active &= ~DAC1;
707                 /* Stop DMA */
708                 snd_es18xx_write(chip, 0xB8, 0x00);
709 #ifdef AVOID_POPS
710                 /* Avoid pops */
711                 udelay(25000);
712                 /* Disable Audio 1 */
713                 snd_es18xx_dsp_command(chip, 0xD3);
714 #endif
715                 break;
716         default:
717                 return -EINVAL;
718         }
719
720         return 0;
721 }
722
723 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
724 {
725         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
726         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
727                 return snd_es18xx_playback1_prepare(chip, substream);
728         else
729                 return snd_es18xx_playback2_prepare(chip, substream);
730 }
731
732 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
733                                        int cmd)
734 {
735         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
736         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
737                 return snd_es18xx_playback1_trigger(chip, substream, cmd);
738         else
739                 return snd_es18xx_playback2_trigger(chip, substream, cmd);
740 }
741
742 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
743 {
744         struct snd_es18xx *chip = dev_id;
745         unsigned char status;
746
747         if (chip->caps & ES18XX_CONTROL) {
748                 /* Read Interrupt status */
749                 status = inb(chip->ctrl_port + 6);
750         } else {
751                 /* Read Interrupt status */
752                 status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
753         }
754 #if 0
755         else {
756                 status = 0;
757                 if (inb(chip->port + 0x0C) & 0x01)
758                         status |= AUDIO1_IRQ;
759                 if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
760                         status |= AUDIO2_IRQ;
761                 if ((chip->caps & ES18XX_HWV) &&
762                     snd_es18xx_mixer_read(chip, 0x64) & 0x10)
763                         status |= HWV_IRQ;
764         }
765 #endif
766
767         /* Audio 1 & Audio 2 */
768         if (status & AUDIO2_IRQ) {
769                 if (chip->active & DAC2)
770                         snd_pcm_period_elapsed(chip->playback_a_substream);
771                 /* ack interrupt */
772                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
773         }
774         if (status & AUDIO1_IRQ) {
775                 /* ok.. capture is active */
776                 if (chip->active & ADC1)
777                         snd_pcm_period_elapsed(chip->capture_a_substream);
778                 /* ok.. playback2 is active */
779                 else if (chip->active & DAC1)
780                         snd_pcm_period_elapsed(chip->playback_b_substream);
781                 /* ack interrupt */
782                 inb(chip->port + 0x0E);
783         }
784
785         /* MPU */
786         if ((status & MPU_IRQ) && chip->rmidi)
787                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
788
789         /* Hardware volume */
790         if (status & HWV_IRQ) {
791                 int split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
792                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
793                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
794                 if (!split) {
795                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_switch->id);
796                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_volume->id);
797                 }
798                 /* ack interrupt */
799                 snd_es18xx_mixer_write(chip, 0x66, 0x00);
800         }
801         return IRQ_HANDLED;
802 }
803
804 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
805 {
806         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
807         int pos;
808
809         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
810                 if (!(chip->active & DAC2))
811                         return 0;
812                 pos = snd_dma_pointer(chip->dma2, chip->dma2_size);
813                 return pos >> chip->dma2_shift;
814         } else {
815                 if (!(chip->active & DAC1))
816                         return 0;
817                 pos = snd_dma_pointer(chip->dma1, chip->dma1_size);
818                 return pos >> chip->dma1_shift;
819         }
820 }
821
822 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
823 {
824         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
825         int pos;
826
827         if (!(chip->active & ADC1))
828                 return 0;
829         pos = snd_dma_pointer(chip->dma1, chip->dma1_size);
830         return pos >> chip->dma1_shift;
831 }
832
833 static struct snd_pcm_hardware snd_es18xx_playback =
834 {
835         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
836                                  SNDRV_PCM_INFO_RESUME |
837                                  SNDRV_PCM_INFO_MMAP_VALID),
838         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
839                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
840         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
841         .rate_min =             4000,
842         .rate_max =             48000,
843         .channels_min =         1,
844         .channels_max =         2,
845         .buffer_bytes_max =     65536,
846         .period_bytes_min =     64,
847         .period_bytes_max =     65536,
848         .periods_min =          1,
849         .periods_max =          1024,
850         .fifo_size =            0,
851 };
852
853 static struct snd_pcm_hardware snd_es18xx_capture =
854 {
855         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
856                                  SNDRV_PCM_INFO_RESUME |
857                                  SNDRV_PCM_INFO_MMAP_VALID),
858         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
859                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
860         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
861         .rate_min =             4000,
862         .rate_max =             48000,
863         .channels_min =         1,
864         .channels_max =         2,
865         .buffer_bytes_max =     65536,
866         .period_bytes_min =     64,
867         .period_bytes_max =     65536,
868         .periods_min =          1,
869         .periods_max =          1024,
870         .fifo_size =            0,
871 };
872
873 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
874 {
875         struct snd_pcm_runtime *runtime = substream->runtime;
876         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
877
878         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
879                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
880                     chip->capture_a_substream && 
881                     chip->capture_a_substream->runtime->channels != 1)
882                         return -EAGAIN;
883                 chip->playback_a_substream = substream;
884         } else if (substream->number <= 1) {
885                 if (chip->capture_a_substream)
886                         return -EAGAIN;
887                 chip->playback_b_substream = substream;
888         } else {
889                 snd_BUG();
890                 return -EINVAL;
891         }
892         substream->runtime->hw = snd_es18xx_playback;
893         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
894                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
895         return 0;
896 }
897
898 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
899 {
900         struct snd_pcm_runtime *runtime = substream->runtime;
901         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
902
903         if (chip->playback_b_substream)
904                 return -EAGAIN;
905         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
906             chip->playback_a_substream &&
907             chip->playback_a_substream->runtime->channels != 1)
908                 return -EAGAIN;
909         chip->capture_a_substream = substream;
910         substream->runtime->hw = snd_es18xx_capture;
911         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
912                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
913         return 0;
914 }
915
916 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
917 {
918         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
919
920         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
921                 chip->playback_a_substream = NULL;
922         else
923                 chip->playback_b_substream = NULL;
924         
925         snd_pcm_lib_free_pages(substream);
926         return 0;
927 }
928
929 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
930 {
931         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
932
933         chip->capture_a_substream = NULL;
934         snd_pcm_lib_free_pages(substream);
935         return 0;
936 }
937
938 /*
939  *  MIXER part
940  */
941
942 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
943 {
944         static char *texts[8] = {
945                 "Mic", "Mic Master", "CD", "AOUT",
946                 "Mic1", "Mix", "Line", "Master"
947         };
948
949         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
950         uinfo->count = 1;
951         uinfo->value.enumerated.items = 8;
952         if (uinfo->value.enumerated.item > 7)
953                 uinfo->value.enumerated.item = 7;
954         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
955         return 0;
956 }
957
958 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
959 {
960         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
961         ucontrol->value.enumerated.item[0] = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
962         return 0;
963 }
964
965 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
966 {
967         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
968         unsigned char val = ucontrol->value.enumerated.item[0];
969         
970         if (val > 7)
971                 return -EINVAL;
972         return snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val;
973 }
974
975 static int snd_es18xx_info_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
976 {
977         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
978         uinfo->count = 1;
979         uinfo->value.integer.min = 0;
980         uinfo->value.integer.max = 1;
981         return 0;
982 }
983
984 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
985 {
986         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
987         unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
988         ucontrol->value.integer.value[0] = !!(val & 8);
989         return 0;
990 }
991
992 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
993 {
994         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
995         unsigned char oval, nval;
996         int change;
997         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
998         oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
999         change = nval != oval;
1000         if (change) {
1001                 snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1002                 snd_es18xx_mixer_write(chip, 0x50, nval);
1003         }
1004         return change;
1005 }
1006
1007 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1008 {
1009         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1010         uinfo->count = 2;
1011         uinfo->value.integer.min = 0;
1012         uinfo->value.integer.max = 63;
1013         return 0;
1014 }
1015
1016 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1017 {
1018         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1019         ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1020         ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1021         return 0;
1022 }
1023
1024 static int snd_es18xx_info_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1025 {
1026         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1027         uinfo->count = 2;
1028         uinfo->value.integer.min = 0;
1029         uinfo->value.integer.max = 1;
1030         return 0;
1031 }
1032
1033 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1034 {
1035         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1036         ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1037         ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1038         return 0;
1039 }
1040
1041 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1042 {
1043         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1044         chip->master_volume = NULL;
1045         chip->master_switch = NULL;
1046         chip->hw_volume = NULL;
1047         chip->hw_switch = NULL;
1048 }
1049
1050 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1051                                unsigned char mask, unsigned char val)
1052 {
1053         if (reg < 0xa0)
1054                 return snd_es18xx_mixer_bits(chip, reg, mask, val);
1055         else
1056                 return snd_es18xx_bits(chip, reg, mask, val);
1057 }
1058
1059 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1060 {
1061         if (reg < 0xa0)
1062                 return snd_es18xx_mixer_read(chip, reg);
1063         else
1064                 return snd_es18xx_read(chip, reg);
1065 }
1066
1067 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, invert) \
1068 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1069   .info = snd_es18xx_info_single, \
1070   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1071   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1072
1073 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1074 {
1075         int mask = (kcontrol->private_value >> 16) & 0xff;
1076
1077         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1078         uinfo->count = 1;
1079         uinfo->value.integer.min = 0;
1080         uinfo->value.integer.max = mask;
1081         return 0;
1082 }
1083
1084 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1085 {
1086         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1087         int reg = kcontrol->private_value & 0xff;
1088         int shift = (kcontrol->private_value >> 8) & 0xff;
1089         int mask = (kcontrol->private_value >> 16) & 0xff;
1090         int invert = (kcontrol->private_value >> 24) & 0xff;
1091         int val;
1092         
1093         val = snd_es18xx_reg_read(chip, reg);
1094         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1095         if (invert)
1096                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1097         return 0;
1098 }
1099
1100 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1101 {
1102         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1103         int reg = kcontrol->private_value & 0xff;
1104         int shift = (kcontrol->private_value >> 8) & 0xff;
1105         int mask = (kcontrol->private_value >> 16) & 0xff;
1106         int invert = (kcontrol->private_value >> 24) & 0xff;
1107         unsigned char val;
1108         
1109         val = (ucontrol->value.integer.value[0] & mask);
1110         if (invert)
1111                 val = mask - val;
1112         mask <<= shift;
1113         val <<= shift;
1114         return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1115 }
1116
1117 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1118 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1119   .info = snd_es18xx_info_double, \
1120   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1121   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1122
1123 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1124 {
1125         int mask = (kcontrol->private_value >> 24) & 0xff;
1126
1127         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1128         uinfo->count = 2;
1129         uinfo->value.integer.min = 0;
1130         uinfo->value.integer.max = mask;
1131         return 0;
1132 }
1133
1134 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1135 {
1136         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1137         int left_reg = kcontrol->private_value & 0xff;
1138         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1139         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1140         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1141         int mask = (kcontrol->private_value >> 24) & 0xff;
1142         int invert = (kcontrol->private_value >> 22) & 1;
1143         unsigned char left, right;
1144         
1145         left = snd_es18xx_reg_read(chip, left_reg);
1146         if (left_reg != right_reg)
1147                 right = snd_es18xx_reg_read(chip, right_reg);
1148         else
1149                 right = left;
1150         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1151         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1152         if (invert) {
1153                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1154                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1155         }
1156         return 0;
1157 }
1158
1159 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1160 {
1161         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1162         int left_reg = kcontrol->private_value & 0xff;
1163         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1164         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1165         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1166         int mask = (kcontrol->private_value >> 24) & 0xff;
1167         int invert = (kcontrol->private_value >> 22) & 1;
1168         int change;
1169         unsigned char val1, val2, mask1, mask2;
1170         
1171         val1 = ucontrol->value.integer.value[0] & mask;
1172         val2 = ucontrol->value.integer.value[1] & mask;
1173         if (invert) {
1174                 val1 = mask - val1;
1175                 val2 = mask - val2;
1176         }
1177         val1 <<= shift_left;
1178         val2 <<= shift_right;
1179         mask1 = mask << shift_left;
1180         mask2 = mask << shift_right;
1181         if (left_reg != right_reg) {
1182                 change = 0;
1183                 if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1184                         change = 1;
1185                 if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1186                         change = 1;
1187         } else {
1188                 change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2, 
1189                                               val1 | val2) != (val1 | val2));
1190         }
1191         return change;
1192 }
1193
1194 static struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1195 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1196 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1197 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1198 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1199 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1200 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1201 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1202 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1203 ES18XX_SINGLE("PC Speaker Playback Volume", 0, 0x3c, 0, 7, 0),
1204 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1205 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1206 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1207 {
1208         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1209         .name = "Capture Source",
1210         .info = snd_es18xx_info_mux,
1211         .get = snd_es18xx_get_mux,
1212         .put = snd_es18xx_put_mux,
1213 }
1214 };
1215
1216 static struct snd_kcontrol_new snd_es18xx_mono_in_control = 
1217 ES18XX_DOUBLE("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0);
1218
1219 static struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1220 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1221 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1222 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1223 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1224 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0),
1225 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1226 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1227 };
1228
1229 static struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1230 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1231 };
1232
1233 static struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1234 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1235 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1236 };
1237
1238 static struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1239 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1240 {
1241         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1242         .name = "3D Control - Switch",
1243         .info = snd_es18xx_info_spatializer_enable,
1244         .get = snd_es18xx_get_spatializer_enable,
1245         .put = snd_es18xx_put_spatializer_enable,
1246 }
1247 };
1248
1249 static struct snd_kcontrol_new snd_es18xx_micpre1_control = 
1250 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1251
1252 static struct snd_kcontrol_new snd_es18xx_micpre2_control =
1253 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1254
1255 static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1256 {
1257         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1258         .name = "Hardware Master Playback Volume",
1259         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1260         .info = snd_es18xx_info_hw_volume,
1261         .get = snd_es18xx_get_hw_volume,
1262 },
1263 {
1264         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1265         .name = "Hardware Master Playback Switch",
1266         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1267         .info = snd_es18xx_info_hw_switch,
1268         .get = snd_es18xx_get_hw_switch,
1269 },
1270 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1271 };
1272
1273 #if 0
1274 static int __devinit snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1275 {
1276         int data;
1277         unsigned long flags;
1278         spin_lock_irqsave(&chip->ctrl_lock, flags);
1279         outb(reg, chip->ctrl_port);
1280         data = inb(chip->ctrl_port + 1);
1281         spin_unlock_irqrestore(&chip->ctrl_lock, flags);
1282         return data;
1283 }
1284 #endif
1285
1286 static void __devinit snd_es18xx_config_write(struct snd_es18xx *chip, 
1287                                               unsigned char reg, unsigned char data)
1288 {
1289         /* No need for spinlocks, this function is used only in
1290            otherwise protected init code */
1291         outb(reg, chip->ctrl_port);
1292         outb(data, chip->ctrl_port + 1);
1293 #ifdef REG_DEBUG
1294         snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1295 #endif
1296 }
1297
1298 static int __devinit snd_es18xx_initialize(struct snd_es18xx *chip)
1299 {
1300         int mask = 0;
1301
1302         /* enable extended mode */
1303         snd_es18xx_dsp_command(chip, 0xC6);
1304         /* Reset mixer registers */
1305         snd_es18xx_mixer_write(chip, 0x00, 0x00);
1306
1307         /* Audio 1 DMA demand mode (4 bytes/request) */
1308         snd_es18xx_write(chip, 0xB9, 2);
1309         if (chip->caps & ES18XX_CONTROL) {
1310                 /* Hardware volume IRQ */
1311                 snd_es18xx_config_write(chip, 0x27, chip->irq);
1312                 if (chip->fm_port > 0 && chip->fm_port != SNDRV_AUTO_PORT) {
1313                         /* FM I/O */
1314                         snd_es18xx_config_write(chip, 0x62, chip->fm_port >> 8);
1315                         snd_es18xx_config_write(chip, 0x63, chip->fm_port & 0xff);
1316                 }
1317                 if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
1318                         /* MPU-401 I/O */
1319                         snd_es18xx_config_write(chip, 0x64, chip->mpu_port >> 8);
1320                         snd_es18xx_config_write(chip, 0x65, chip->mpu_port & 0xff);
1321                         /* MPU-401 IRQ */
1322                         snd_es18xx_config_write(chip, 0x28, chip->irq);
1323                 }
1324                 /* Audio1 IRQ */
1325                 snd_es18xx_config_write(chip, 0x70, chip->irq);
1326                 /* Audio2 IRQ */
1327                 snd_es18xx_config_write(chip, 0x72, chip->irq);
1328                 /* Audio1 DMA */
1329                 snd_es18xx_config_write(chip, 0x74, chip->dma1);
1330                 /* Audio2 DMA */
1331                 snd_es18xx_config_write(chip, 0x75, chip->dma2);
1332
1333                 /* Enable Audio 1 IRQ */
1334                 snd_es18xx_write(chip, 0xB1, 0x50);
1335                 /* Enable Audio 2 IRQ */
1336                 snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1337                 /* Enable Audio 1 DMA */
1338                 snd_es18xx_write(chip, 0xB2, 0x50);
1339                 /* Enable MPU and hardware volume interrupt */
1340                 snd_es18xx_mixer_write(chip, 0x64, 0x42);
1341         }
1342         else {
1343                 int irqmask, dma1mask, dma2mask;
1344                 switch (chip->irq) {
1345                 case 2:
1346                 case 9:
1347                         irqmask = 0;
1348                         break;
1349                 case 5:
1350                         irqmask = 1;
1351                         break;
1352                 case 7:
1353                         irqmask = 2;
1354                         break;
1355                 case 10:
1356                         irqmask = 3;
1357                         break;
1358                 default:
1359                         snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1360                         return -ENODEV;
1361                 }
1362                 switch (chip->dma1) {
1363                 case 0:
1364                         dma1mask = 1;
1365                         break;
1366                 case 1:
1367                         dma1mask = 2;
1368                         break;
1369                 case 3:
1370                         dma1mask = 3;
1371                         break;
1372                 default:
1373                         snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1374                         return -ENODEV;
1375                 }
1376                 switch (chip->dma2) {
1377                 case 0:
1378                         dma2mask = 0;
1379                         break;
1380                 case 1:
1381                         dma2mask = 1;
1382                         break;
1383                 case 3:
1384                         dma2mask = 2;
1385                         break;
1386                 case 5:
1387                         dma2mask = 3;
1388                         break;
1389                 default:
1390                         snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1391                         return -ENODEV;
1392                 }
1393
1394                 /* Enable and set Audio 1 IRQ */
1395                 snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1396                 /* Enable and set Audio 1 DMA */
1397                 snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1398                 /* Set Audio 2 DMA */
1399                 snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1400                 /* Enable Audio 2 IRQ and DMA
1401                    Set capture mixer input */
1402                 snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1403                 /* Enable and set hardware volume interrupt */
1404                 snd_es18xx_mixer_write(chip, 0x64, 0x06);
1405                 if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
1406                         /* MPU401 share irq with audio
1407                            Joystick enabled
1408                            FM enabled */
1409                         snd_es18xx_mixer_write(chip, 0x40, 0x43 | (chip->mpu_port & 0xf0) >> 1);
1410                 }
1411                 snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1412         }
1413         if (chip->caps & ES18XX_NEW_RATE) {
1414                 /* Change behaviour of register A1
1415                    4x oversampling
1416                    2nd channel DAC asynchronous */
1417                 snd_es18xx_mixer_write(chip, 0x71, 0x32);
1418         }
1419         if (!(chip->caps & ES18XX_PCM2)) {
1420                 /* Enable DMA FIFO */
1421                 snd_es18xx_write(chip, 0xB7, 0x80);
1422         }
1423         if (chip->caps & ES18XX_SPATIALIZER) {
1424                 /* Set spatializer parameters to recommended values */
1425                 snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1426                 snd_es18xx_mixer_write(chip, 0x56, 0x95);
1427                 snd_es18xx_mixer_write(chip, 0x58, 0x94);
1428                 snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1429         }
1430         /* Mute input source */
1431         if (chip->caps & ES18XX_MUTEREC)
1432                 mask = 0x10;
1433         if (chip->caps & ES18XX_RECMIX)
1434                 snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1435         else {
1436                 snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1437                 snd_es18xx_write(chip, 0xb4, 0x00);
1438         }
1439 #ifndef AVOID_POPS
1440         /* Enable PCM output */
1441         snd_es18xx_dsp_command(chip, 0xD1);
1442 #endif
1443
1444         return 0;
1445 }
1446
1447 static int __devinit snd_es18xx_identify(struct snd_es18xx *chip)
1448 {
1449         int hi,lo;
1450
1451         /* reset */
1452         if (snd_es18xx_reset(chip) < 0) {
1453                 snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1454                 return -ENODEV;
1455         }
1456
1457         snd_es18xx_dsp_command(chip, 0xe7);
1458         hi = snd_es18xx_dsp_get_byte(chip);
1459         if (hi < 0) {
1460                 return hi;
1461         }
1462         lo = snd_es18xx_dsp_get_byte(chip);
1463         if ((lo & 0xf0) != 0x80) {
1464                 return -ENODEV;
1465         }
1466         if (hi == 0x48) {
1467                 chip->version = 0x488;
1468                 return 0;
1469         }
1470         if (hi != 0x68) {
1471                 return -ENODEV;
1472         }
1473         if ((lo & 0x0f) < 8) {
1474                 chip->version = 0x688;
1475                 return 0;
1476         }
1477                         
1478         outb(0x40, chip->port + 0x04);
1479         hi = inb(chip->port + 0x05);
1480         lo = inb(chip->port + 0x05);
1481         if (hi != lo) {
1482                 chip->version = hi << 8 | lo;
1483                 chip->ctrl_port = inb(chip->port + 0x05) << 8;
1484                 chip->ctrl_port += inb(chip->port + 0x05);
1485
1486                 if ((chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL")) == NULL) {
1487                         snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1488                         return -EBUSY;
1489                 }
1490
1491                 return 0;
1492         }
1493
1494         /* If has Hardware volume */
1495         if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1496                 /* If has Audio2 */
1497                 if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1498                         /* If has volume count */
1499                         if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1500                                 chip->version = 0x1887;
1501                         } else {
1502                                 chip->version = 0x1888;
1503                         }
1504                 } else {
1505                         chip->version = 0x1788;
1506                 }
1507         }
1508         else
1509                 chip->version = 0x1688;
1510         return 0;
1511 }
1512
1513 static int __devinit snd_es18xx_probe(struct snd_es18xx *chip)
1514 {
1515         if (snd_es18xx_identify(chip) < 0) {
1516                 snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1517                 return -ENODEV;
1518         }
1519
1520         switch (chip->version) {
1521         case 0x1868:
1522                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL | ES18XX_HWV;
1523                 break;
1524         case 0x1869:
1525                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV;
1526                 break;
1527         case 0x1878:
1528                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1529                 break;
1530         case 0x1879:
1531                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1532                 break;
1533         case 0x1887:
1534                 chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME | ES18XX_HWV;
1535                 break;
1536         case 0x1888:
1537                 chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME | ES18XX_HWV;
1538                 break;
1539         default:
1540                 snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1541                            chip->port, chip->version);
1542                 return -ENODEV;
1543         }
1544
1545         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1546
1547         if (chip->dma1 == chip->dma2)
1548                 chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1549
1550         return snd_es18xx_initialize(chip);
1551 }
1552
1553 static struct snd_pcm_ops snd_es18xx_playback_ops = {
1554         .open =         snd_es18xx_playback_open,
1555         .close =        snd_es18xx_playback_close,
1556         .ioctl =        snd_pcm_lib_ioctl,
1557         .hw_params =    snd_es18xx_playback_hw_params,
1558         .hw_free =      snd_es18xx_pcm_hw_free,
1559         .prepare =      snd_es18xx_playback_prepare,
1560         .trigger =      snd_es18xx_playback_trigger,
1561         .pointer =      snd_es18xx_playback_pointer,
1562 };
1563
1564 static struct snd_pcm_ops snd_es18xx_capture_ops = {
1565         .open =         snd_es18xx_capture_open,
1566         .close =        snd_es18xx_capture_close,
1567         .ioctl =        snd_pcm_lib_ioctl,
1568         .hw_params =    snd_es18xx_capture_hw_params,
1569         .hw_free =      snd_es18xx_pcm_hw_free,
1570         .prepare =      snd_es18xx_capture_prepare,
1571         .trigger =      snd_es18xx_capture_trigger,
1572         .pointer =      snd_es18xx_capture_pointer,
1573 };
1574
1575 static int __devinit snd_es18xx_pcm(struct snd_es18xx *chip, int device, struct snd_pcm ** rpcm)
1576 {
1577         struct snd_pcm *pcm;
1578         char str[16];
1579         int err;
1580
1581         if (rpcm)
1582                 *rpcm = NULL;
1583         sprintf(str, "ES%x", chip->version);
1584         if (chip->caps & ES18XX_PCM2)
1585                 err = snd_pcm_new(chip->card, str, device, 2, 1, &pcm);
1586         else
1587                 err = snd_pcm_new(chip->card, str, device, 1, 1, &pcm);
1588         if (err < 0)
1589                 return err;
1590
1591         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1592         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1593
1594         /* global setup */
1595         pcm->private_data = chip;
1596         pcm->info_flags = 0;
1597         if (chip->caps & ES18XX_DUPLEX_SAME)
1598                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1599         if (! (chip->caps & ES18XX_PCM2))
1600                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1601         sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1602         chip->pcm = pcm;
1603
1604         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1605                                               snd_dma_isa_data(),
1606                                               64*1024,
1607                                               chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1608
1609         if (rpcm)
1610                 *rpcm = pcm;
1611         return 0;
1612 }
1613
1614 /* Power Management support functions */
1615 #ifdef CONFIG_PM
1616 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1617 {
1618         struct snd_audiodrive *acard = card->private_data;
1619         struct snd_es18xx *chip = acard->chip;
1620
1621         snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1622
1623         snd_pcm_suspend_all(chip->pcm);
1624
1625         /* power down */
1626         chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1627         chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1628         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1629         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1630
1631         return 0;
1632 }
1633
1634 static int snd_es18xx_resume(struct snd_card *card)
1635 {
1636         struct snd_audiodrive *acard = card->private_data;
1637         struct snd_es18xx *chip = acard->chip;
1638
1639         /* restore PM register, we won't wake till (not 0x07) i/o activity though */
1640         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1641
1642         snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1643         return 0;
1644 }
1645 #endif /* CONFIG_PM */
1646
1647 static int snd_es18xx_free(struct snd_es18xx *chip)
1648 {
1649         release_and_free_resource(chip->res_port);
1650         release_and_free_resource(chip->res_ctrl_port);
1651         release_and_free_resource(chip->res_mpu_port);
1652         if (chip->irq >= 0)
1653                 free_irq(chip->irq, (void *) chip);
1654         if (chip->dma1 >= 0) {
1655                 disable_dma(chip->dma1);
1656                 free_dma(chip->dma1);
1657         }
1658         if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1659                 disable_dma(chip->dma2);
1660                 free_dma(chip->dma2);
1661         }
1662         kfree(chip);
1663         return 0;
1664 }
1665
1666 static int snd_es18xx_dev_free(struct snd_device *device)
1667 {
1668         struct snd_es18xx *chip = device->device_data;
1669         return snd_es18xx_free(chip);
1670 }
1671
1672 static int __devinit snd_es18xx_new_device(struct snd_card *card,
1673                                            unsigned long port,
1674                                            unsigned long mpu_port,
1675                                            unsigned long fm_port,
1676                                            int irq, int dma1, int dma2,
1677                                            struct snd_es18xx ** rchip)
1678 {
1679         struct snd_es18xx *chip;
1680         static struct snd_device_ops ops = {
1681                 .dev_free =     snd_es18xx_dev_free,
1682         };
1683         int err;
1684
1685         *rchip = NULL;
1686         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1687         if (chip == NULL)
1688                 return -ENOMEM;
1689         spin_lock_init(&chip->reg_lock);
1690         spin_lock_init(&chip->mixer_lock);
1691         spin_lock_init(&chip->ctrl_lock);
1692         chip->card = card;
1693         chip->port = port;
1694         chip->mpu_port = mpu_port;
1695         chip->fm_port = fm_port;
1696         chip->irq = -1;
1697         chip->dma1 = -1;
1698         chip->dma2 = -1;
1699         chip->audio2_vol = 0x00;
1700         chip->active = 0;
1701
1702         if ((chip->res_port = request_region(port, 16, "ES18xx")) == NULL) {
1703                 snd_es18xx_free(chip);
1704                 snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1705                 return -EBUSY;
1706         }
1707
1708         if (request_irq(irq, snd_es18xx_interrupt, SA_INTERRUPT, "ES18xx", (void *) chip)) {
1709                 snd_es18xx_free(chip);
1710                 snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1711                 return -EBUSY;
1712         }
1713         chip->irq = irq;
1714
1715         if (request_dma(dma1, "ES18xx DMA 1")) {
1716                 snd_es18xx_free(chip);
1717                 snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1718                 return -EBUSY;
1719         }
1720         chip->dma1 = dma1;
1721
1722         if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1723                 snd_es18xx_free(chip);
1724                 snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1725                 return -EBUSY;
1726         }
1727         chip->dma2 = dma2;
1728
1729         if (snd_es18xx_probe(chip) < 0) {
1730                 snd_es18xx_free(chip);
1731                 return -ENODEV;
1732         }
1733         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1734                 snd_es18xx_free(chip);
1735                 return err;
1736         }
1737         *rchip = chip;
1738         return 0;
1739 }
1740
1741 static int __devinit snd_es18xx_mixer(struct snd_es18xx *chip)
1742 {
1743         struct snd_card *card;
1744         int err;
1745         unsigned int idx;
1746
1747         card = chip->card;
1748
1749         strcpy(card->mixername, chip->pcm->name);
1750
1751         for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1752                 struct snd_kcontrol *kctl;
1753                 kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1754                 if (chip->caps & ES18XX_HWV) {
1755                         switch (idx) {
1756                         case 0:
1757                                 chip->master_volume = kctl;
1758                                 kctl->private_free = snd_es18xx_hwv_free;
1759                                 break;
1760                         case 1:
1761                                 chip->master_switch = kctl;
1762                                 kctl->private_free = snd_es18xx_hwv_free;
1763                                 break;
1764                         }
1765                 }
1766                 if ((err = snd_ctl_add(card, kctl)) < 0)
1767                         return err;
1768         }
1769         if (chip->caps & ES18XX_PCM2) {
1770                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1771                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip))) < 0)
1772                                 return err;
1773                 } 
1774         } else {
1775                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1776                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip))) < 0)
1777                                 return err;
1778                 }
1779         }
1780
1781         if (chip->caps & ES18XX_MONO) {
1782                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_mono_in_control, chip))) < 0)
1783                         return err;
1784         }
1785         if (chip->caps & ES18XX_RECMIX) {
1786                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1787                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip))) < 0)
1788                                 return err;
1789                 }
1790         }
1791         switch (chip->version) {
1792         default:
1793                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip))) < 0)
1794                         return err;
1795                 break;
1796         case 0x1869:
1797         case 0x1879:
1798                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip))) < 0)
1799                         return err;
1800                 break;
1801         }
1802         if (chip->caps & ES18XX_SPATIALIZER) {
1803                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1804                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip))) < 0)
1805                                 return err;
1806                 }
1807         }
1808         if (chip->caps & ES18XX_HWV) {
1809                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1810                         struct snd_kcontrol *kctl;
1811                         kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1812                         if (idx == 0)
1813                                 chip->hw_volume = kctl;
1814                         else
1815                                 chip->hw_switch = kctl;
1816                         kctl->private_free = snd_es18xx_hwv_free;
1817                         if ((err = snd_ctl_add(card, kctl)) < 0)
1818                                 return err;
1819                         
1820                 }
1821         }
1822         return 0;
1823 }
1824        
1825
1826 /* Card level */
1827
1828 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");  
1829 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1830 MODULE_LICENSE("GPL");
1831 MODULE_SUPPORTED_DEVICE("{{ESS,ES1868 PnP AudioDrive},"
1832                 "{ESS,ES1869 PnP AudioDrive},"
1833                 "{ESS,ES1878 PnP AudioDrive},"
1834                 "{ESS,ES1879 PnP AudioDrive},"
1835                 "{ESS,ES1887 PnP AudioDrive},"
1836                 "{ESS,ES1888 PnP AudioDrive},"
1837                 "{ESS,ES1887 AudioDrive},"
1838                 "{ESS,ES1888 AudioDrive}}");
1839
1840 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
1841 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
1842 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1843 #ifdef CONFIG_PNP
1844 static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
1845 #endif
1846 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260,0x280 */
1847 #ifndef CONFIG_PNP
1848 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
1849 #else
1850 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1851 #endif
1852 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1853 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
1854 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1855 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1856
1857 module_param_array(index, int, NULL, 0444);
1858 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
1859 module_param_array(id, charp, NULL, 0444);
1860 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
1861 module_param_array(enable, bool, NULL, 0444);
1862 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
1863 #ifdef CONFIG_PNP
1864 module_param_array(isapnp, bool, NULL, 0444);
1865 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
1866 #endif
1867 module_param_array(port, long, NULL, 0444);
1868 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
1869 module_param_array(mpu_port, long, NULL, 0444);
1870 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
1871 module_param_array(fm_port, long, NULL, 0444);
1872 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
1873 module_param_array(irq, int, NULL, 0444);
1874 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
1875 module_param_array(dma1, int, NULL, 0444);
1876 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
1877 module_param_array(dma2, int, NULL, 0444);
1878 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
1879
1880 #ifdef CONFIG_PNP
1881
1882 static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
1883         /* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
1884         { .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
1885         /* ESS 1868 (integrated on Maxisound Cards) */
1886         { .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
1887         /* ESS 1868 (integrated on Maxisound Cards) */
1888         { .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
1889         /* ESS ES1869 Plug and Play AudioDrive */
1890         { .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
1891         /* ESS 1869 */
1892         { .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
1893         /* ESS 1878 */
1894         { .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
1895         /* ESS 1879 */
1896         { .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
1897         /* --- */
1898         { .id = "" } /* end */
1899 };
1900
1901 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
1902
1903 static int __devinit snd_audiodrive_pnp(int dev, struct snd_audiodrive *acard,
1904                                         struct pnp_card_link *card,
1905                                         const struct pnp_card_device_id *id)
1906 {
1907         struct pnp_dev *pdev;
1908         struct pnp_resource_table * cfg = kmalloc(sizeof(struct pnp_resource_table), GFP_KERNEL);
1909         int err;
1910
1911         if (!cfg)
1912                 return -ENOMEM;
1913         acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
1914         if (acard->dev == NULL) {
1915                 kfree(cfg);
1916                 return -EBUSY;
1917         }
1918         acard->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
1919         if (acard->devc == NULL) {
1920                 kfree(cfg);
1921                 return -EBUSY;
1922         }
1923         /* Control port initialization */
1924         err = pnp_activate_dev(acard->devc);
1925         if (err < 0) {
1926                 snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
1927                 return -EAGAIN;
1928         }
1929         snd_printdd("pnp: port=0x%lx\n", pnp_port_start(acard->devc, 0));
1930         /* PnP initialization */
1931         pdev = acard->dev;
1932         pnp_init_resource_table(cfg);
1933         if (port[dev] != SNDRV_AUTO_PORT)
1934                 pnp_resource_change(&cfg->port_resource[0], port[dev], 16);
1935         if (fm_port[dev] != SNDRV_AUTO_PORT)
1936                 pnp_resource_change(&cfg->port_resource[1], fm_port[dev], 4);
1937         if (mpu_port[dev] != SNDRV_AUTO_PORT)
1938                 pnp_resource_change(&cfg->port_resource[2], mpu_port[dev], 2);
1939         if (dma1[dev] != SNDRV_AUTO_DMA)
1940                 pnp_resource_change(&cfg->dma_resource[0], dma1[dev], 1);
1941         if (dma2[dev] != SNDRV_AUTO_DMA)
1942                 pnp_resource_change(&cfg->dma_resource[1], dma2[dev], 1);
1943         if (irq[dev] != SNDRV_AUTO_IRQ)
1944                 pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
1945         err = pnp_manual_config_dev(pdev, cfg, 0);
1946         if (err < 0)
1947                 snd_printk(KERN_ERR PFX "PnP manual resources are invalid, using auto config\n");
1948         err = pnp_activate_dev(pdev);
1949         if (err < 0) {
1950                 snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
1951                 kfree(cfg);
1952                 return -EBUSY;
1953         }
1954         /* ok. hack using Vendor-Defined Card-Level registers */
1955         /* skip csn and logdev initialization - already done in isapnp_configure */
1956         if (pnp_device_is_isapnp(pdev)) {
1957                 isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
1958                 isapnp_write_byte(0x27, pnp_irq(pdev, 0));      /* Hardware Volume IRQ Number */
1959                 if (mpu_port[dev] != SNDRV_AUTO_PORT)
1960                         isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
1961                 isapnp_write_byte(0x72, pnp_irq(pdev, 0));      /* second IRQ */
1962                 isapnp_cfg_end();
1963         } else {
1964                 snd_printk(KERN_ERR PFX "unable to install ISA PnP hack, expect malfunction\n");
1965         }
1966         port[dev] = pnp_port_start(pdev, 0);
1967         fm_port[dev] = pnp_port_start(pdev, 1);
1968         mpu_port[dev] = pnp_port_start(pdev, 2);
1969         dma1[dev] = pnp_dma(pdev, 0);
1970         dma2[dev] = pnp_dma(pdev, 1);
1971         irq[dev] = pnp_irq(pdev, 0);
1972         snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
1973         snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
1974         kfree(cfg);
1975         return 0;
1976 }
1977 #endif /* CONFIG_PNP */
1978
1979 #ifdef CONFIG_PNP
1980 #define is_isapnp_selected(dev)         isapnp[dev]
1981 #else
1982 #define is_isapnp_selected(dev)         0
1983 #endif
1984
1985 static struct snd_card *snd_es18xx_card_new(int dev)
1986 {
1987         return snd_card_new(index[dev], id[dev], THIS_MODULE,
1988                             sizeof(struct snd_audiodrive));
1989 }
1990
1991 static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev)
1992 {
1993         struct snd_audiodrive *acard = card->private_data;
1994         struct snd_es18xx *chip;
1995         struct snd_opl3 *opl3;
1996         int err;
1997
1998         if ((err = snd_es18xx_new_device(card,
1999                                          port[dev],
2000                                          mpu_port[dev],
2001                                          fm_port[dev],
2002                                          irq[dev], dma1[dev], dma2[dev],
2003                                          &chip)) < 0)
2004                 return err;
2005         acard->chip = chip;
2006
2007         sprintf(card->driver, "ES%x", chip->version);
2008         
2009         sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2010         if (dma1[dev] != dma2[dev])
2011                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2012                         card->shortname,
2013                         chip->port,
2014                         irq[dev], dma1[dev], dma2[dev]);
2015         else
2016                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2017                         card->shortname,
2018                         chip->port,
2019                         irq[dev], dma1[dev]);
2020
2021         if ((err = snd_es18xx_pcm(chip, 0, NULL)) < 0)
2022                 return err;
2023
2024         if ((err = snd_es18xx_mixer(chip)) < 0)
2025                 return err;
2026
2027         if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2028                 if (snd_opl3_create(card, chip->fm_port, chip->fm_port + 2, OPL3_HW_OPL3, 0, &opl3) < 0) {
2029                         snd_printk(KERN_WARNING PFX "opl3 not detected at 0x%lx\n", chip->fm_port);
2030                 } else {
2031                         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
2032                                 return err;
2033                 }
2034         }
2035
2036         if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2037                 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2038                                                chip->mpu_port, 0,
2039                                                irq[dev], 0,
2040                                                &chip->rmidi)) < 0)
2041                         return err;
2042         }
2043
2044         return snd_card_register(card);
2045 }
2046
2047 static int __init snd_es18xx_nonpnp_probe1(int dev, struct platform_device *devptr)
2048 {
2049         struct snd_card *card;
2050         int err;
2051
2052         card = snd_es18xx_card_new(dev);
2053         if (! card)
2054                 return -ENOMEM;
2055         snd_card_set_dev(card, &devptr->dev);
2056         if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2057                 snd_card_free(card);
2058                 return err;
2059         }
2060         platform_set_drvdata(devptr, card);
2061         return 0;
2062 }
2063
2064 static int __init snd_es18xx_nonpnp_probe(struct platform_device *pdev)
2065 {
2066         int dev = pdev->id;
2067         int err;
2068         static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2069         static int possible_dmas[] = {1, 0, 3, 5, -1};
2070
2071         if (irq[dev] == SNDRV_AUTO_IRQ) {
2072                 if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
2073                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2074                         return -EBUSY;
2075                 }
2076         }
2077         if (dma1[dev] == SNDRV_AUTO_DMA) {
2078                 if ((dma1[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2079                         snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2080                         return -EBUSY;
2081                 }
2082         }
2083         if (dma2[dev] == SNDRV_AUTO_DMA) {
2084                 if ((dma2[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2085                         snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2086                         return -EBUSY;
2087                 }
2088         }
2089
2090         if (port[dev] != SNDRV_AUTO_PORT) {
2091                 return snd_es18xx_nonpnp_probe1(dev, pdev);
2092         } else {
2093                 static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2094                 int i;
2095                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2096                         port[dev] = possible_ports[i];
2097                         err = snd_es18xx_nonpnp_probe1(dev, pdev);
2098                         if (! err)
2099                                 return 0;
2100                 }
2101                 return err;
2102         }
2103 }
2104
2105 static int __devexit snd_es18xx_nonpnp_remove(struct platform_device *devptr)
2106 {
2107         snd_card_free(platform_get_drvdata(devptr));
2108         platform_set_drvdata(devptr, NULL);
2109         return 0;
2110 }
2111
2112 #ifdef CONFIG_PM
2113 static int snd_es18xx_nonpnp_suspend(struct platform_device *dev, pm_message_t state)
2114 {
2115         return snd_es18xx_suspend(platform_get_drvdata(dev), state);
2116 }
2117
2118 static int snd_es18xx_nonpnp_resume(struct platform_device *dev)
2119 {
2120         return snd_es18xx_resume(platform_get_drvdata(dev));
2121 }
2122 #endif
2123
2124 #define ES18XX_DRIVER   "snd_es18xx"
2125
2126 static struct platform_driver snd_es18xx_nonpnp_driver = {
2127         .probe          = snd_es18xx_nonpnp_probe,
2128         .remove         = __devexit_p(snd_es18xx_nonpnp_remove),
2129 #ifdef CONFIG_PM
2130         .suspend        = snd_es18xx_nonpnp_suspend,
2131         .resume         = snd_es18xx_nonpnp_resume,
2132 #endif
2133         .driver         = {
2134                 .name   = ES18XX_DRIVER
2135         },
2136 };
2137
2138
2139 #ifdef CONFIG_PNP
2140 static int __devinit snd_audiodrive_pnp_detect(struct pnp_card_link *pcard,
2141                                                const struct pnp_card_device_id *pid)
2142 {
2143         static int dev;
2144         struct snd_card *card;
2145         int res;
2146
2147         for ( ; dev < SNDRV_CARDS; dev++) {
2148                 if (enable[dev] && isapnp[dev])
2149                         break;
2150         }
2151         if (dev >= SNDRV_CARDS)
2152                 return -ENODEV;
2153
2154         card = snd_es18xx_card_new(dev);
2155         if (! card)
2156                 return -ENOMEM;
2157
2158         if ((res = snd_audiodrive_pnp(dev, card->private_data, pcard, pid)) < 0) {
2159                 snd_card_free(card);
2160                 return res;
2161         }
2162         snd_card_set_dev(card, &pcard->card->dev);
2163         if ((res = snd_audiodrive_probe(card, dev)) < 0) {
2164                 snd_card_free(card);
2165                 return res;
2166         }
2167
2168         pnp_set_card_drvdata(pcard, card);
2169         dev++;
2170         return 0;
2171 }
2172
2173 static void __devexit snd_audiodrive_pnp_remove(struct pnp_card_link * pcard)
2174 {
2175         snd_card_free(pnp_get_card_drvdata(pcard));
2176         pnp_set_card_drvdata(pcard, NULL);
2177 }
2178
2179 #ifdef CONFIG_PM
2180 static int snd_audiodrive_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
2181 {
2182         return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2183 }
2184
2185 static int snd_audiodrive_pnp_resume(struct pnp_card_link *pcard)
2186 {
2187         return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2188 }
2189
2190 #endif
2191
2192 static struct pnp_card_driver es18xx_pnpc_driver = {
2193         .flags = PNP_DRIVER_RES_DISABLE,
2194         .name = "es18xx",
2195         .id_table = snd_audiodrive_pnpids,
2196         .probe = snd_audiodrive_pnp_detect,
2197         .remove = __devexit_p(snd_audiodrive_pnp_remove),
2198 #ifdef CONFIG_PM
2199         .suspend        = snd_audiodrive_pnp_suspend,
2200         .resume         = snd_audiodrive_pnp_resume,
2201 #endif
2202 };
2203 #endif /* CONFIG_PNP */
2204
2205 static int __init alsa_card_es18xx_init(void)
2206 {
2207         int i, err, cards = 0;
2208
2209         if ((err = platform_driver_register(&snd_es18xx_nonpnp_driver)) < 0)
2210                 return err;
2211
2212         for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
2213                 struct platform_device *device;
2214                 if (is_isapnp_selected(i))
2215                         continue;
2216                 device = platform_device_register_simple(ES18XX_DRIVER,
2217                                                          i, NULL, 0);
2218                 if (IS_ERR(device)) {
2219                         err = PTR_ERR(device);
2220                         platform_driver_unregister(&snd_es18xx_nonpnp_driver);
2221                         return err;
2222                 }
2223                 cards++;
2224         }
2225
2226         i = pnp_register_card_driver(&es18xx_pnpc_driver);
2227         if (i > 0)
2228                 cards += i;
2229
2230         if(!cards) {
2231                 pnp_unregister_card_driver(&es18xx_pnpc_driver);
2232                 platform_driver_unregister(&snd_es18xx_nonpnp_driver);
2233 #ifdef MODULE
2234                 snd_printk(KERN_ERR "ESS AudioDrive ES18xx soundcard not found or device busy\n");
2235 #endif
2236                 return -ENODEV;
2237         }
2238         return 0;
2239 }
2240
2241 static void __exit alsa_card_es18xx_exit(void)
2242 {
2243         pnp_unregister_card_driver(&es18xx_pnpc_driver);
2244         platform_driver_unregister(&snd_es18xx_nonpnp_driver);
2245 }
2246
2247 module_init(alsa_card_es18xx_init)
2248 module_exit(alsa_card_es18xx_exit)