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Linux/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  * - Zoom Video is implemented by sharing the FM DAC, thus the user can
 53  *   have either FM playback or Video playback but not both simultaneously.
 54  *   The Video Playback Switch mixer control toggles this choice.
 55  *
 56  * BUGS:
 57  *
 58  * - There is a major trouble I noted:
 59  *
 60  *   using both channel for playback stereo 16 bit samples at 44100 Hz
 61  *   the second pcm (Audio1) DMA slows down irregularly and sound is garbled.
 62  *   
 63  *   The same happens using Audio1 for captureing.
 64  *
 65  *   The Windows driver does not suffer of this (although it use Audio1
 66  *   only for captureing). I'm unable to discover why.
 67  *
 68  */
 69 
 70 /*
 71  * ES1879 NOTES:
 72  * - When Zoom Video is enabled (reg 0x71 bit 6 toggled on) the PCM playback
 73  *   seems to be effected (speaker_test plays a lower frequency). Can't find
 74  *   anything in the datasheet to account for this, so a Video Playback Switch
 75  *   control has been included to allow ZV to be enabled only when necessary.
 76  *   Then again on at least one test system the 0x71 bit 6 enable bit is not 
 77  *   needed for ZV, so maybe the datasheet is entirely wrong here.
 78  */
 79  
 80 #include <linux/init.h>
 81 #include <linux/err.h>
 82 #include <linux/isa.h>
 83 #include <linux/pnp.h>
 84 #include <linux/isapnp.h>
 85 #include <linux/module.h>
 86 #include <linux/delay.h>
 87 
 88 #include <asm/io.h>
 89 #include <asm/dma.h>
 90 #include <sound/core.h>
 91 #include <sound/control.h>
 92 #include <sound/pcm.h>
 93 #include <sound/pcm_params.h>
 94 #include <sound/mpu401.h>
 95 #include <sound/opl3.h>
 96 #define SNDRV_LEGACY_FIND_FREE_IRQ
 97 #define SNDRV_LEGACY_FIND_FREE_DMA
 98 #include <sound/initval.h>
 99 
100 #define PFX "es18xx: "
101 
102 struct snd_es18xx {
103         unsigned long port;             /* port of ESS chip */
104         unsigned long ctrl_port;        /* Control port of ESS chip */
105         struct resource *res_port;
106         struct resource *res_mpu_port;
107         struct resource *res_ctrl_port;
108         int irq;                        /* IRQ number of ESS chip */
109         int dma1;                       /* DMA1 */
110         int dma2;                       /* DMA2 */
111         unsigned short version;         /* version of ESS chip */
112         int caps;                       /* Chip capabilities */
113         unsigned short audio2_vol;      /* volume level of audio2 */
114 
115         unsigned short active;          /* active channel mask */
116         unsigned int dma1_shift;
117         unsigned int dma2_shift;
118 
119         struct snd_pcm *pcm;
120         struct snd_pcm_substream *playback_a_substream;
121         struct snd_pcm_substream *capture_a_substream;
122         struct snd_pcm_substream *playback_b_substream;
123 
124         struct snd_rawmidi *rmidi;
125 
126         struct snd_kcontrol *hw_volume;
127         struct snd_kcontrol *hw_switch;
128         struct snd_kcontrol *master_volume;
129         struct snd_kcontrol *master_switch;
130 
131         spinlock_t reg_lock;
132         spinlock_t mixer_lock;
133 #ifdef CONFIG_PM
134         unsigned char pm_reg;
135 #endif
136 #ifdef CONFIG_PNP
137         struct pnp_dev *dev;
138         struct pnp_dev *devc;
139 #endif
140 };
141 
142 #define AUDIO1_IRQ      0x01
143 #define AUDIO2_IRQ      0x02
144 #define HWV_IRQ         0x04
145 #define MPU_IRQ         0x08
146 
147 #define ES18XX_PCM2     0x0001  /* Has two useable PCM */
148 #define ES18XX_SPATIALIZER 0x0002       /* Has 3D Spatializer */
149 #define ES18XX_RECMIX   0x0004  /* Has record mixer */
150 #define ES18XX_DUPLEX_MONO 0x0008       /* Has mono duplex only */
151 #define ES18XX_DUPLEX_SAME 0x0010       /* Playback and record must share the same rate */
152 #define ES18XX_NEW_RATE 0x0020  /* More precise rate setting */
153 #define ES18XX_AUXB     0x0040  /* AuxB mixer control */
154 #define ES18XX_HWV      0x0080  /* Has separate hardware volume mixer controls*/
155 #define ES18XX_MONO     0x0100  /* Mono_in mixer control */
156 #define ES18XX_I2S      0x0200  /* I2S mixer control */
157 #define ES18XX_MUTEREC  0x0400  /* Record source can be muted */
158 #define ES18XX_CONTROL  0x0800  /* Has control ports */
159 
160 /* Power Management */
161 #define ES18XX_PM       0x07
162 #define ES18XX_PM_GPO0  0x01
163 #define ES18XX_PM_GPO1  0x02
164 #define ES18XX_PM_PDR   0x04
165 #define ES18XX_PM_ANA   0x08
166 #define ES18XX_PM_FM    0x020
167 #define ES18XX_PM_SUS   0x080
168 
169 /* Lowlevel */
170 
171 #define DAC1 0x01
172 #define ADC1 0x02
173 #define DAC2 0x04
174 #define MILLISECOND 10000
175 
176 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
177 {
178         int i;
179 
180         for(i = MILLISECOND; i; i--)
181                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
182                         outb(val, chip->port + 0x0C);
183                         return 0;
184                 }
185         snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
186         return -EINVAL;
187 }
188 
189 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
190 {
191         int i;
192 
193         for(i = MILLISECOND/10; i; i--)
194                 if (inb(chip->port + 0x0C) & 0x40)
195                         return inb(chip->port + 0x0A);
196         snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
197                    chip->port + 0x0A, inb(chip->port + 0x0A));
198         return -ENODEV;
199 }
200 
201 #undef REG_DEBUG
202 
203 static int snd_es18xx_write(struct snd_es18xx *chip,
204                             unsigned char reg, unsigned char data)
205 {
206         unsigned long flags;
207         int ret;
208         
209         spin_lock_irqsave(&chip->reg_lock, flags);
210         ret = snd_es18xx_dsp_command(chip, reg);
211         if (ret < 0)
212                 goto end;
213         ret = snd_es18xx_dsp_command(chip, data);
214  end:
215         spin_unlock_irqrestore(&chip->reg_lock, flags);
216 #ifdef REG_DEBUG
217         snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
218 #endif
219         return ret;
220 }
221 
222 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
223 {
224         unsigned long flags;
225         int ret, data;
226         spin_lock_irqsave(&chip->reg_lock, flags);
227         ret = snd_es18xx_dsp_command(chip, 0xC0);
228         if (ret < 0)
229                 goto end;
230         ret = snd_es18xx_dsp_command(chip, reg);
231         if (ret < 0)
232                 goto end;
233         data = snd_es18xx_dsp_get_byte(chip);
234         ret = data;
235 #ifdef REG_DEBUG
236         snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
237 #endif
238  end:
239         spin_unlock_irqrestore(&chip->reg_lock, flags);
240         return ret;
241 }
242 
243 /* Return old value */
244 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
245                            unsigned char mask, unsigned char val)
246 {
247         int ret;
248         unsigned char old, new, oval;
249         unsigned long flags;
250         spin_lock_irqsave(&chip->reg_lock, flags);
251         ret = snd_es18xx_dsp_command(chip, 0xC0);
252         if (ret < 0)
253                 goto end;
254         ret = snd_es18xx_dsp_command(chip, reg);
255         if (ret < 0)
256                 goto end;
257         ret = snd_es18xx_dsp_get_byte(chip);
258         if (ret < 0) {
259                 goto end;
260         }
261         old = ret;
262         oval = old & mask;
263         if (val != oval) {
264                 ret = snd_es18xx_dsp_command(chip, reg);
265                 if (ret < 0)
266                         goto end;
267                 new = (old & ~mask) | (val & mask);
268                 ret = snd_es18xx_dsp_command(chip, new);
269                 if (ret < 0)
270                         goto end;
271 #ifdef REG_DEBUG
272                 snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
273                            reg, old, new, ret);
274 #endif
275         }
276         ret = oval;
277  end:
278         spin_unlock_irqrestore(&chip->reg_lock, flags);
279         return ret;
280 }
281 
282 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
283                             unsigned char reg, unsigned char data)
284 {
285         unsigned long flags;
286         spin_lock_irqsave(&chip->mixer_lock, flags);
287         outb(reg, chip->port + 0x04);
288         outb(data, chip->port + 0x05);
289         spin_unlock_irqrestore(&chip->mixer_lock, flags);
290 #ifdef REG_DEBUG
291         snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
292 #endif
293 }
294 
295 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
296 {
297         unsigned long flags;
298         int data;
299         spin_lock_irqsave(&chip->mixer_lock, flags);
300         outb(reg, chip->port + 0x04);
301         data = inb(chip->port + 0x05);
302         spin_unlock_irqrestore(&chip->mixer_lock, flags);
303 #ifdef REG_DEBUG
304         snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
305 #endif
306         return data;
307 }
308 
309 /* Return old value */
310 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
311                                         unsigned char mask, unsigned char val)
312 {
313         unsigned char old, new, oval;
314         unsigned long flags;
315         spin_lock_irqsave(&chip->mixer_lock, flags);
316         outb(reg, chip->port + 0x04);
317         old = inb(chip->port + 0x05);
318         oval = old & mask;
319         if (val != oval) {
320                 new = (old & ~mask) | (val & mask);
321                 outb(new, chip->port + 0x05);
322 #ifdef REG_DEBUG
323                 snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
324                            reg, old, new);
325 #endif
326         }
327         spin_unlock_irqrestore(&chip->mixer_lock, flags);
328         return oval;
329 }
330 
331 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
332                                             unsigned char mask)
333 {
334         int old, expected, new;
335         unsigned long flags;
336         spin_lock_irqsave(&chip->mixer_lock, flags);
337         outb(reg, chip->port + 0x04);
338         old = inb(chip->port + 0x05);
339         expected = old ^ mask;
340         outb(expected, chip->port + 0x05);
341         new = inb(chip->port + 0x05);
342         spin_unlock_irqrestore(&chip->mixer_lock, flags);
343 #ifdef REG_DEBUG
344         snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
345                    reg, old, expected, new);
346 #endif
347         return expected == new;
348 }
349 
350 
351 static int snd_es18xx_reset(struct snd_es18xx *chip)
352 {
353         int i;
354         outb(0x03, chip->port + 0x06);
355         inb(chip->port + 0x06);
356         outb(0x00, chip->port + 0x06);
357         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
358         if (inb(chip->port + 0x0A) != 0xAA)
359                 return -1;
360         return 0;
361 }
362 
363 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
364 {
365         outb(0x02, chip->port + 0x06);
366         inb(chip->port + 0x06);
367         outb(0x00, chip->port + 0x06);
368         return 0;
369 }
370 
371 static struct snd_ratnum new_clocks[2] = {
372         {
373                 .num = 793800,
374                 .den_min = 1,
375                 .den_max = 128,
376                 .den_step = 1,
377         },
378         {
379                 .num = 768000,
380                 .den_min = 1,
381                 .den_max = 128,
382                 .den_step = 1,
383         }
384 };
385 
386 static struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
387         .nrats = 2,
388         .rats = new_clocks,
389 };
390 
391 static struct snd_ratnum old_clocks[2] = {
392         {
393                 .num = 795444,
394                 .den_min = 1,
395                 .den_max = 128,
396                 .den_step = 1,
397         },
398         {
399                 .num = 397722,
400                 .den_min = 1,
401                 .den_max = 128,
402                 .den_step = 1,
403         }
404 };
405 
406 static struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
407         .nrats = 2,
408         .rats = old_clocks,
409 };
410 
411 
412 static void snd_es18xx_rate_set(struct snd_es18xx *chip, 
413                                 struct snd_pcm_substream *substream,
414                                 int mode)
415 {
416         unsigned int bits, div0;
417         struct snd_pcm_runtime *runtime = substream->runtime;
418         if (chip->caps & ES18XX_NEW_RATE) {
419                 if (runtime->rate_num == new_clocks[0].num)
420                         bits = 128 - runtime->rate_den;
421                 else
422                         bits = 256 - runtime->rate_den;
423         } else {
424                 if (runtime->rate_num == old_clocks[0].num)
425                         bits = 256 - runtime->rate_den;
426                 else
427                         bits = 128 - runtime->rate_den;
428         }
429 
430         /* set filter register */
431         div0 = 256 - 7160000*20/(8*82*runtime->rate);
432                 
433         if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
434                 snd_es18xx_mixer_write(chip, 0x70, bits);
435                 /*
436                  * Comment from kernel oss driver:
437                  * FKS: fascinating: 0x72 doesn't seem to work.
438                  */
439                 snd_es18xx_write(chip, 0xA2, div0);
440                 snd_es18xx_mixer_write(chip, 0x72, div0);
441         } else {
442                 snd_es18xx_write(chip, 0xA1, bits);
443                 snd_es18xx_write(chip, 0xA2, div0);
444         }
445 }
446 
447 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
448                                          struct snd_pcm_hw_params *hw_params)
449 {
450         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
451         int shift, err;
452 
453         shift = 0;
454         if (params_channels(hw_params) == 2)
455                 shift++;
456         if (snd_pcm_format_width(params_format(hw_params)) == 16)
457                 shift++;
458 
459         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
460                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
461                     (chip->capture_a_substream) &&
462                     params_channels(hw_params) != 1) {
463                         _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
464                         return -EBUSY;
465                 }
466                 chip->dma2_shift = shift;
467         } else {
468                 chip->dma1_shift = shift;
469         }
470         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
471                 return err;
472         return 0;
473 }
474 
475 static int snd_es18xx_pcm_hw_free(struct snd_pcm_substream *substream)
476 {
477         return snd_pcm_lib_free_pages(substream);
478 }
479 
480 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
481                                         struct snd_pcm_substream *substream)
482 {
483         struct snd_pcm_runtime *runtime = substream->runtime;
484         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
485         unsigned int count = snd_pcm_lib_period_bytes(substream);
486 
487         snd_es18xx_rate_set(chip, substream, DAC2);
488 
489         /* Transfer Count Reload */
490         count = 0x10000 - count;
491         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
492         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
493 
494         /* Set format */
495         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
496                               ((runtime->channels == 1) ? 0x00 : 0x02) |
497                               (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
498                               (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
499 
500         /* Set DMA controller */
501         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
502 
503         return 0;
504 }
505 
506 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
507                                         struct snd_pcm_substream *substream,
508                                         int cmd)
509 {
510         switch (cmd) {
511         case SNDRV_PCM_TRIGGER_START:
512         case SNDRV_PCM_TRIGGER_RESUME:
513                 if (chip->active & DAC2)
514                         return 0;
515                 chip->active |= DAC2;
516                 /* Start DMA */
517                 if (chip->dma2 >= 4)
518                         snd_es18xx_mixer_write(chip, 0x78, 0xb3);
519                 else
520                         snd_es18xx_mixer_write(chip, 0x78, 0x93);
521 #ifdef AVOID_POPS
522                 /* Avoid pops */
523                 mdelay(100);
524                 if (chip->caps & ES18XX_PCM2)
525                         /* Restore Audio 2 volume */
526                         snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
527                 else
528                         /* Enable PCM output */
529                         snd_es18xx_dsp_command(chip, 0xD1);
530 #endif
531                 break;
532         case SNDRV_PCM_TRIGGER_STOP:
533         case SNDRV_PCM_TRIGGER_SUSPEND:
534                 if (!(chip->active & DAC2))
535                         return 0;
536                 chip->active &= ~DAC2;
537                 /* Stop DMA */
538                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
539 #ifdef AVOID_POPS
540                 mdelay(25);
541                 if (chip->caps & ES18XX_PCM2)
542                         /* Set Audio 2 volume to 0 */
543                         snd_es18xx_mixer_write(chip, 0x7C, 0);
544                 else
545                         /* Disable PCM output */
546                         snd_es18xx_dsp_command(chip, 0xD3);
547 #endif
548                 break;
549         default:
550                 return -EINVAL;
551         }
552 
553         return 0;
554 }
555 
556 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
557                                         struct snd_pcm_hw_params *hw_params)
558 {
559         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
560         int shift, err;
561 
562         shift = 0;
563         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
564             chip->playback_a_substream &&
565             params_channels(hw_params) != 1) {
566                 _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
567                 return -EBUSY;
568         }
569         if (params_channels(hw_params) == 2)
570                 shift++;
571         if (snd_pcm_format_width(params_format(hw_params)) == 16)
572                 shift++;
573         chip->dma1_shift = shift;
574         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
575                 return err;
576         return 0;
577 }
578 
579 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
580 {
581         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
582         struct snd_pcm_runtime *runtime = substream->runtime;
583         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
584         unsigned int count = snd_pcm_lib_period_bytes(substream);
585 
586         snd_es18xx_reset_fifo(chip);
587 
588         /* Set stereo/mono */
589         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
590 
591         snd_es18xx_rate_set(chip, substream, ADC1);
592 
593         /* Transfer Count Reload */
594         count = 0x10000 - count;
595         snd_es18xx_write(chip, 0xA4, count & 0xff);
596         snd_es18xx_write(chip, 0xA5, count >> 8);
597 
598 #ifdef AVOID_POPS
599         mdelay(100);
600 #endif
601 
602         /* Set format */
603         snd_es18xx_write(chip, 0xB7, 
604                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
605         snd_es18xx_write(chip, 0xB7, 0x90 |
606                          ((runtime->channels == 1) ? 0x40 : 0x08) |
607                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
608                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
609 
610         /* Set DMA controller */
611         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
612 
613         return 0;
614 }
615 
616 static int snd_es18xx_capture_trigger(struct snd_pcm_substream *substream,
617                                       int cmd)
618 {
619         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
620 
621         switch (cmd) {
622         case SNDRV_PCM_TRIGGER_START:
623         case SNDRV_PCM_TRIGGER_RESUME:
624                 if (chip->active & ADC1)
625                         return 0;
626                 chip->active |= ADC1;
627                 /* Start DMA */
628                 snd_es18xx_write(chip, 0xB8, 0x0f);
629                 break;
630         case SNDRV_PCM_TRIGGER_STOP:
631         case SNDRV_PCM_TRIGGER_SUSPEND:
632                 if (!(chip->active & ADC1))
633                         return 0;
634                 chip->active &= ~ADC1;
635                 /* Stop DMA */
636                 snd_es18xx_write(chip, 0xB8, 0x00);
637                 break;
638         default:
639                 return -EINVAL;
640         }
641 
642         return 0;
643 }
644 
645 static int snd_es18xx_playback2_prepare(struct snd_es18xx *chip,
646                                         struct snd_pcm_substream *substream)
647 {
648         struct snd_pcm_runtime *runtime = substream->runtime;
649         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
650         unsigned int count = snd_pcm_lib_period_bytes(substream);
651 
652         snd_es18xx_reset_fifo(chip);
653 
654         /* Set stereo/mono */
655         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
656 
657         snd_es18xx_rate_set(chip, substream, DAC1);
658 
659         /* Transfer Count Reload */
660         count = 0x10000 - count;
661         snd_es18xx_write(chip, 0xA4, count & 0xff);
662         snd_es18xx_write(chip, 0xA5, count >> 8);
663 
664         /* Set format */
665         snd_es18xx_write(chip, 0xB6,
666                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
667         snd_es18xx_write(chip, 0xB7, 
668                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
669         snd_es18xx_write(chip, 0xB7, 0x90 |
670                          (runtime->channels == 1 ? 0x40 : 0x08) |
671                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
672                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
673 
674         /* Set DMA controller */
675         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
676 
677         return 0;
678 }
679 
680 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
681                                         struct snd_pcm_substream *substream,
682                                         int cmd)
683 {
684         switch (cmd) {
685         case SNDRV_PCM_TRIGGER_START:
686         case SNDRV_PCM_TRIGGER_RESUME:
687                 if (chip->active & DAC1)
688                         return 0;
689                 chip->active |= DAC1;
690                 /* Start DMA */
691                 snd_es18xx_write(chip, 0xB8, 0x05);
692 #ifdef AVOID_POPS
693                 /* Avoid pops */
694                 mdelay(100);
695                 /* Enable Audio 1 */
696                 snd_es18xx_dsp_command(chip, 0xD1);
697 #endif
698                 break;
699         case SNDRV_PCM_TRIGGER_STOP:
700         case SNDRV_PCM_TRIGGER_SUSPEND:
701                 if (!(chip->active & DAC1))
702                         return 0;
703                 chip->active &= ~DAC1;
704                 /* Stop DMA */
705                 snd_es18xx_write(chip, 0xB8, 0x00);
706 #ifdef AVOID_POPS
707                 /* Avoid pops */
708                 mdelay(25);
709                 /* Disable Audio 1 */
710                 snd_es18xx_dsp_command(chip, 0xD3);
711 #endif
712                 break;
713         default:
714                 return -EINVAL;
715         }
716 
717         return 0;
718 }
719 
720 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
721 {
722         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
723         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
724                 return snd_es18xx_playback1_prepare(chip, substream);
725         else
726                 return snd_es18xx_playback2_prepare(chip, substream);
727 }
728 
729 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
730                                        int cmd)
731 {
732         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
733         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
734                 return snd_es18xx_playback1_trigger(chip, substream, cmd);
735         else
736                 return snd_es18xx_playback2_trigger(chip, substream, cmd);
737 }
738 
739 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id)
740 {
741         struct snd_card *card = dev_id;
742         struct snd_es18xx *chip = card->private_data;
743         unsigned char status;
744 
745         if (chip->caps & ES18XX_CONTROL) {
746                 /* Read Interrupt status */
747                 status = inb(chip->ctrl_port + 6);
748         } else {
749                 /* Read Interrupt status */
750                 status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
751         }
752 #if 0
753         else {
754                 status = 0;
755                 if (inb(chip->port + 0x0C) & 0x01)
756                         status |= AUDIO1_IRQ;
757                 if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
758                         status |= AUDIO2_IRQ;
759                 if ((chip->caps & ES18XX_HWV) &&
760                     snd_es18xx_mixer_read(chip, 0x64) & 0x10)
761                         status |= HWV_IRQ;
762         }
763 #endif
764 
765         /* Audio 1 & Audio 2 */
766         if (status & AUDIO2_IRQ) {
767                 if (chip->active & DAC2)
768                         snd_pcm_period_elapsed(chip->playback_a_substream);
769                 /* ack interrupt */
770                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
771         }
772         if (status & AUDIO1_IRQ) {
773                 /* ok.. capture is active */
774                 if (chip->active & ADC1)
775                         snd_pcm_period_elapsed(chip->capture_a_substream);
776                 /* ok.. playback2 is active */
777                 else if (chip->active & DAC1)
778                         snd_pcm_period_elapsed(chip->playback_b_substream);
779                 /* ack interrupt */
780                 inb(chip->port + 0x0E);
781         }
782 
783         /* MPU */
784         if ((status & MPU_IRQ) && chip->rmidi)
785                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
786 
787         /* Hardware volume */
788         if (status & HWV_IRQ) {
789                 int split = 0;
790                 if (chip->caps & ES18XX_HWV) {
791                         split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
792                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
793                                         &chip->hw_switch->id);
794                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
795                                         &chip->hw_volume->id);
796                 }
797                 if (!split) {
798                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
799                                         &chip->master_switch->id);
800                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
801                                         &chip->master_volume->id);
802                 }
803                 /* ack interrupt */
804                 snd_es18xx_mixer_write(chip, 0x66, 0x00);
805         }
806         return IRQ_HANDLED;
807 }
808 
809 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
810 {
811         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
812         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
813         int pos;
814 
815         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
816                 if (!(chip->active & DAC2))
817                         return 0;
818                 pos = snd_dma_pointer(chip->dma2, size);
819                 return pos >> chip->dma2_shift;
820         } else {
821                 if (!(chip->active & DAC1))
822                         return 0;
823                 pos = snd_dma_pointer(chip->dma1, size);
824                 return pos >> chip->dma1_shift;
825         }
826 }
827 
828 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
829 {
830         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
831         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
832         int pos;
833 
834         if (!(chip->active & ADC1))
835                 return 0;
836         pos = snd_dma_pointer(chip->dma1, size);
837         return pos >> chip->dma1_shift;
838 }
839 
840 static struct snd_pcm_hardware snd_es18xx_playback =
841 {
842         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
843                                  SNDRV_PCM_INFO_RESUME |
844                                  SNDRV_PCM_INFO_MMAP_VALID),
845         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
846                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
847         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
848         .rate_min =             4000,
849         .rate_max =             48000,
850         .channels_min =         1,
851         .channels_max =         2,
852         .buffer_bytes_max =     65536,
853         .period_bytes_min =     64,
854         .period_bytes_max =     65536,
855         .periods_min =          1,
856         .periods_max =          1024,
857         .fifo_size =            0,
858 };
859 
860 static struct snd_pcm_hardware snd_es18xx_capture =
861 {
862         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
863                                  SNDRV_PCM_INFO_RESUME |
864                                  SNDRV_PCM_INFO_MMAP_VALID),
865         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
866                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
867         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
868         .rate_min =             4000,
869         .rate_max =             48000,
870         .channels_min =         1,
871         .channels_max =         2,
872         .buffer_bytes_max =     65536,
873         .period_bytes_min =     64,
874         .period_bytes_max =     65536,
875         .periods_min =          1,
876         .periods_max =          1024,
877         .fifo_size =            0,
878 };
879 
880 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
881 {
882         struct snd_pcm_runtime *runtime = substream->runtime;
883         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
884 
885         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
886                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
887                     chip->capture_a_substream && 
888                     chip->capture_a_substream->runtime->channels != 1)
889                         return -EAGAIN;
890                 chip->playback_a_substream = substream;
891         } else if (substream->number <= 1) {
892                 if (chip->capture_a_substream)
893                         return -EAGAIN;
894                 chip->playback_b_substream = substream;
895         } else {
896                 snd_BUG();
897                 return -EINVAL;
898         }
899         substream->runtime->hw = snd_es18xx_playback;
900         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
901                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
902         return 0;
903 }
904 
905 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
906 {
907         struct snd_pcm_runtime *runtime = substream->runtime;
908         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
909 
910         if (chip->playback_b_substream)
911                 return -EAGAIN;
912         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
913             chip->playback_a_substream &&
914             chip->playback_a_substream->runtime->channels != 1)
915                 return -EAGAIN;
916         chip->capture_a_substream = substream;
917         substream->runtime->hw = snd_es18xx_capture;
918         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
919                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
920         return 0;
921 }
922 
923 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
924 {
925         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
926 
927         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
928                 chip->playback_a_substream = NULL;
929         else
930                 chip->playback_b_substream = NULL;
931         
932         snd_pcm_lib_free_pages(substream);
933         return 0;
934 }
935 
936 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
937 {
938         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
939 
940         chip->capture_a_substream = NULL;
941         snd_pcm_lib_free_pages(substream);
942         return 0;
943 }
944 
945 /*
946  *  MIXER part
947  */
948 
949 /* Record source mux routines:
950  * Depending on the chipset this mux switches between 4, 5, or 8 possible inputs.
951  * bit table for the 4/5 source mux:
952  * reg 1C:
953  *  b2 b1 b0   muxSource
954  *   x  0  x   microphone
955  *   0  1  x   CD
956  *   1  1  0   line
957  *   1  1  1   mixer
958  * if it's "mixer" and it's a 5 source mux chipset then reg 7A bit 3 determines
959  * either the play mixer or the capture mixer.
960  *
961  * "map4Source" translates from source number to reg bit pattern
962  * "invMap4Source" translates from reg bit pattern to source number
963  */
964 
965 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
966 {
967         static char *texts5Source[5] = {
968                 "Mic", "CD", "Line", "Master", "Mix"
969         };
970         static char *texts8Source[8] = {
971                 "Mic", "Mic Master", "CD", "AOUT",
972                 "Mic1", "Mix", "Line", "Master"
973         };
974         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
975 
976         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
977         uinfo->count = 1;
978         switch (chip->version) {
979         case 0x1868:
980         case 0x1878:
981                 uinfo->value.enumerated.items = 4;
982                 if (uinfo->value.enumerated.item > 3)
983                         uinfo->value.enumerated.item = 3;
984                 strcpy(uinfo->value.enumerated.name,
985                         texts5Source[uinfo->value.enumerated.item]);
986                 break;
987         case 0x1887:
988         case 0x1888:
989                 uinfo->value.enumerated.items = 5;
990                 if (uinfo->value.enumerated.item > 4)
991                         uinfo->value.enumerated.item = 4;
992                 strcpy(uinfo->value.enumerated.name, texts5Source[uinfo->value.enumerated.item]);
993                 break;
994         case 0x1869: /* DS somewhat contradictory for 1869: could be be 5 or 8 */
995         case 0x1879:
996                 uinfo->value.enumerated.items = 8;
997                 if (uinfo->value.enumerated.item > 7)
998                         uinfo->value.enumerated.item = 7;
999                 strcpy(uinfo->value.enumerated.name, texts8Source[uinfo->value.enumerated.item]);
1000                 break;
1001         default:
1002                 return -EINVAL;
1003         }
1004         return 0;
1005 }
1006 
1007 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1008 {
1009         static unsigned char invMap4Source[8] = {0, 0, 1, 1, 0, 0, 2, 3};
1010         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1011         int muxSource = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
1012         if (!(chip->version == 0x1869 || chip->version == 0x1879)) {
1013                 muxSource = invMap4Source[muxSource];
1014                 if (muxSource==3 && 
1015                     (chip->version == 0x1887 || chip->version == 0x1888) &&
1016                     (snd_es18xx_mixer_read(chip, 0x7a) & 0x08)
1017                 ) 
1018                         muxSource = 4;
1019         }
1020         ucontrol->value.enumerated.item[0] = muxSource;
1021         return 0;
1022 }
1023 
1024 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1025 {
1026         static unsigned char map4Source[4] = {0, 2, 6, 7};
1027         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1028         unsigned char val = ucontrol->value.enumerated.item[0];
1029         unsigned char retVal = 0;
1030 
1031         switch (chip->version) {
1032  /* 5 source chips */
1033         case 0x1887:
1034         case 0x1888:
1035                 if (val > 4)
1036                         return -EINVAL;
1037                 if (val == 4) {
1038                         retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x08) != 0x08;
1039                         val = 3;
1040                 } else
1041                         retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x00) != 0x00;
1042  /* 4 source chips */
1043         case 0x1868:
1044         case 0x1878:
1045                 if (val > 3)
1046                         return -EINVAL;
1047                 val = map4Source[val];
1048                 break;
1049  /* 8 source chips */
1050         case 0x1869:
1051         case 0x1879:
1052                 if (val > 7)
1053                         return -EINVAL;
1054                 break;
1055         default:
1056                 return -EINVAL;
1057         }
1058         return (snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val) || retVal;
1059 }
1060 
1061 #define snd_es18xx_info_spatializer_enable      snd_ctl_boolean_mono_info
1062 
1063 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1064 {
1065         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1066         unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
1067         ucontrol->value.integer.value[0] = !!(val & 8);
1068         return 0;
1069 }
1070 
1071 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1072 {
1073         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1074         unsigned char oval, nval;
1075         int change;
1076         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1077         oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
1078         change = nval != oval;
1079         if (change) {
1080                 snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1081                 snd_es18xx_mixer_write(chip, 0x50, nval);
1082         }
1083         return change;
1084 }
1085 
1086 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1087 {
1088         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1089         uinfo->count = 2;
1090         uinfo->value.integer.min = 0;
1091         uinfo->value.integer.max = 63;
1092         return 0;
1093 }
1094 
1095 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1096 {
1097         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1098         ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1099         ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1100         return 0;
1101 }
1102 
1103 #define snd_es18xx_info_hw_switch       snd_ctl_boolean_stereo_info
1104 
1105 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1106 {
1107         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1108         ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1109         ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1110         return 0;
1111 }
1112 
1113 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1114 {
1115         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1116         chip->master_volume = NULL;
1117         chip->master_switch = NULL;
1118         chip->hw_volume = NULL;
1119         chip->hw_switch = NULL;
1120 }
1121 
1122 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1123                                unsigned char mask, unsigned char val)
1124 {
1125         if (reg < 0xa0)
1126                 return snd_es18xx_mixer_bits(chip, reg, mask, val);
1127         else
1128                 return snd_es18xx_bits(chip, reg, mask, val);
1129 }
1130 
1131 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1132 {
1133         if (reg < 0xa0)
1134                 return snd_es18xx_mixer_read(chip, reg);
1135         else
1136                 return snd_es18xx_read(chip, reg);
1137 }
1138 
1139 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, invert) \
1140 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1141   .info = snd_es18xx_info_single, \
1142   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1143   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1144 
1145 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1146 {
1147         int mask = (kcontrol->private_value >> 16) & 0xff;
1148 
1149         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1150         uinfo->count = 1;
1151         uinfo->value.integer.min = 0;
1152         uinfo->value.integer.max = mask;
1153         return 0;
1154 }
1155 
1156 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1157 {
1158         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1159         int reg = kcontrol->private_value & 0xff;
1160         int shift = (kcontrol->private_value >> 8) & 0xff;
1161         int mask = (kcontrol->private_value >> 16) & 0xff;
1162         int invert = (kcontrol->private_value >> 24) & 0xff;
1163         int val;
1164         
1165         val = snd_es18xx_reg_read(chip, reg);
1166         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1167         if (invert)
1168                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1169         return 0;
1170 }
1171 
1172 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1173 {
1174         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1175         int reg = kcontrol->private_value & 0xff;
1176         int shift = (kcontrol->private_value >> 8) & 0xff;
1177         int mask = (kcontrol->private_value >> 16) & 0xff;
1178         int invert = (kcontrol->private_value >> 24) & 0xff;
1179         unsigned char val;
1180         
1181         val = (ucontrol->value.integer.value[0] & mask);
1182         if (invert)
1183                 val = mask - val;
1184         mask <<= shift;
1185         val <<= shift;
1186         return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1187 }
1188 
1189 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1190 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1191   .info = snd_es18xx_info_double, \
1192   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1193   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1194 
1195 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1196 {
1197         int mask = (kcontrol->private_value >> 24) & 0xff;
1198 
1199         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1200         uinfo->count = 2;
1201         uinfo->value.integer.min = 0;
1202         uinfo->value.integer.max = mask;
1203         return 0;
1204 }
1205 
1206 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1207 {
1208         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1209         int left_reg = kcontrol->private_value & 0xff;
1210         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1211         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1212         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1213         int mask = (kcontrol->private_value >> 24) & 0xff;
1214         int invert = (kcontrol->private_value >> 22) & 1;
1215         unsigned char left, right;
1216         
1217         left = snd_es18xx_reg_read(chip, left_reg);
1218         if (left_reg != right_reg)
1219                 right = snd_es18xx_reg_read(chip, right_reg);
1220         else
1221                 right = left;
1222         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1223         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1224         if (invert) {
1225                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1226                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1227         }
1228         return 0;
1229 }
1230 
1231 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1232 {
1233         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1234         int left_reg = kcontrol->private_value & 0xff;
1235         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1236         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1237         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1238         int mask = (kcontrol->private_value >> 24) & 0xff;
1239         int invert = (kcontrol->private_value >> 22) & 1;
1240         int change;
1241         unsigned char val1, val2, mask1, mask2;
1242         
1243         val1 = ucontrol->value.integer.value[0] & mask;
1244         val2 = ucontrol->value.integer.value[1] & mask;
1245         if (invert) {
1246                 val1 = mask - val1;
1247                 val2 = mask - val2;
1248         }
1249         val1 <<= shift_left;
1250         val2 <<= shift_right;
1251         mask1 = mask << shift_left;
1252         mask2 = mask << shift_right;
1253         if (left_reg != right_reg) {
1254                 change = 0;
1255                 if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1256                         change = 1;
1257                 if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1258                         change = 1;
1259         } else {
1260                 change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2, 
1261                                               val1 | val2) != (val1 | val2));
1262         }
1263         return change;
1264 }
1265 
1266 /* Mixer controls
1267  * These arrays contain setup data for mixer controls.
1268  * 
1269  * The controls that are universal to all chipsets are fully initialized
1270  * here.
1271  */
1272 static struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1273 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1274 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1275 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1276 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1277 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1278 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1279 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1280 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1281 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1282 {
1283         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1284         .name = "Capture Source",
1285         .info = snd_es18xx_info_mux,
1286         .get = snd_es18xx_get_mux,
1287         .put = snd_es18xx_put_mux,
1288 }
1289 };
1290 
1291 static struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1292 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1293 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1294 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1295 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1296 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1297 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1298 };
1299 
1300 /*
1301  * The chipset specific mixer controls
1302  */
1303 static struct snd_kcontrol_new snd_es18xx_opt_speaker =
1304         ES18XX_SINGLE("Beep Playback Volume", 0, 0x3c, 0, 7, 0);
1305 
1306 static struct snd_kcontrol_new snd_es18xx_opt_1869[] = {
1307 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1308 ES18XX_SINGLE("Video Playback Switch", 0, 0x7f, 0, 1, 0),
1309 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1310 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1311 };
1312 
1313 static struct snd_kcontrol_new snd_es18xx_opt_1878 =
1314         ES18XX_DOUBLE("Video Playback Volume", 0, 0x68, 0x68, 4, 0, 15, 0);
1315 
1316 static struct snd_kcontrol_new snd_es18xx_opt_1879[] = {
1317 ES18XX_SINGLE("Video Playback Switch", 0, 0x71, 6, 1, 0),
1318 ES18XX_DOUBLE("Video Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1319 ES18XX_DOUBLE("Video Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1320 };
1321 
1322 static struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1323 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1324 };
1325 
1326 static struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1327 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1328 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1329 };
1330 
1331 static struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1332 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1333 {
1334         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1335         .name = "3D Control - Switch",
1336         .info = snd_es18xx_info_spatializer_enable,
1337         .get = snd_es18xx_get_spatializer_enable,
1338         .put = snd_es18xx_put_spatializer_enable,
1339 }
1340 };
1341 
1342 static struct snd_kcontrol_new snd_es18xx_micpre1_control = 
1343 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1344 
1345 static struct snd_kcontrol_new snd_es18xx_micpre2_control =
1346 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1347 
1348 static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1349 {
1350         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1351         .name = "Hardware Master Playback Volume",
1352         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1353         .info = snd_es18xx_info_hw_volume,
1354         .get = snd_es18xx_get_hw_volume,
1355 },
1356 {
1357         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1358         .name = "Hardware Master Playback Switch",
1359         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1360         .info = snd_es18xx_info_hw_switch,
1361         .get = snd_es18xx_get_hw_switch,
1362 },
1363 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1364 };
1365 
1366 static int snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1367 {
1368         int data;
1369 
1370         outb(reg, chip->ctrl_port);
1371         data = inb(chip->ctrl_port + 1);
1372         return data;
1373 }
1374 
1375 static void snd_es18xx_config_write(struct snd_es18xx *chip,
1376                                     unsigned char reg, unsigned char data)
1377 {
1378         /* No need for spinlocks, this function is used only in
1379            otherwise protected init code */
1380         outb(reg, chip->ctrl_port);
1381         outb(data, chip->ctrl_port + 1);
1382 #ifdef REG_DEBUG
1383         snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1384 #endif
1385 }
1386 
1387 static int snd_es18xx_initialize(struct snd_es18xx *chip,
1388                                  unsigned long mpu_port,
1389                                  unsigned long fm_port)
1390 {
1391         int mask = 0;
1392 
1393         /* enable extended mode */
1394         snd_es18xx_dsp_command(chip, 0xC6);
1395         /* Reset mixer registers */
1396         snd_es18xx_mixer_write(chip, 0x00, 0x00);
1397 
1398         /* Audio 1 DMA demand mode (4 bytes/request) */
1399         snd_es18xx_write(chip, 0xB9, 2);
1400         if (chip->caps & ES18XX_CONTROL) {
1401                 /* Hardware volume IRQ */
1402                 snd_es18xx_config_write(chip, 0x27, chip->irq);
1403                 if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
1404                         /* FM I/O */
1405                         snd_es18xx_config_write(chip, 0x62, fm_port >> 8);
1406                         snd_es18xx_config_write(chip, 0x63, fm_port & 0xff);
1407                 }
1408                 if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1409                         /* MPU-401 I/O */
1410                         snd_es18xx_config_write(chip, 0x64, mpu_port >> 8);
1411                         snd_es18xx_config_write(chip, 0x65, mpu_port & 0xff);
1412                         /* MPU-401 IRQ */
1413                         snd_es18xx_config_write(chip, 0x28, chip->irq);
1414                 }
1415                 /* Audio1 IRQ */
1416                 snd_es18xx_config_write(chip, 0x70, chip->irq);
1417                 /* Audio2 IRQ */
1418                 snd_es18xx_config_write(chip, 0x72, chip->irq);
1419                 /* Audio1 DMA */
1420                 snd_es18xx_config_write(chip, 0x74, chip->dma1);
1421                 /* Audio2 DMA */
1422                 snd_es18xx_config_write(chip, 0x75, chip->dma2);
1423 
1424                 /* Enable Audio 1 IRQ */
1425                 snd_es18xx_write(chip, 0xB1, 0x50);
1426                 /* Enable Audio 2 IRQ */
1427                 snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1428                 /* Enable Audio 1 DMA */
1429                 snd_es18xx_write(chip, 0xB2, 0x50);
1430                 /* Enable MPU and hardware volume interrupt */
1431                 snd_es18xx_mixer_write(chip, 0x64, 0x42);
1432                 /* Enable ESS wavetable input */
1433                 snd_es18xx_mixer_bits(chip, 0x48, 0x10, 0x10);
1434         }
1435         else {
1436                 int irqmask, dma1mask, dma2mask;
1437                 switch (chip->irq) {
1438                 case 2:
1439                 case 9:
1440                         irqmask = 0;
1441                         break;
1442                 case 5:
1443                         irqmask = 1;
1444                         break;
1445                 case 7:
1446                         irqmask = 2;
1447                         break;
1448                 case 10:
1449                         irqmask = 3;
1450                         break;
1451                 default:
1452                         snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1453                         return -ENODEV;
1454                 }
1455                 switch (chip->dma1) {
1456                 case 0:
1457                         dma1mask = 1;
1458                         break;
1459                 case 1:
1460                         dma1mask = 2;
1461                         break;
1462                 case 3:
1463                         dma1mask = 3;
1464                         break;
1465                 default:
1466                         snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1467                         return -ENODEV;
1468                 }
1469                 switch (chip->dma2) {
1470                 case 0:
1471                         dma2mask = 0;
1472                         break;
1473                 case 1:
1474                         dma2mask = 1;
1475                         break;
1476                 case 3:
1477                         dma2mask = 2;
1478                         break;
1479                 case 5:
1480                         dma2mask = 3;
1481                         break;
1482                 default:
1483                         snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1484                         return -ENODEV;
1485                 }
1486 
1487                 /* Enable and set Audio 1 IRQ */
1488                 snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1489                 /* Enable and set Audio 1 DMA */
1490                 snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1491                 /* Set Audio 2 DMA */
1492                 snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1493                 /* Enable Audio 2 IRQ and DMA
1494                    Set capture mixer input */
1495                 snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1496                 /* Enable and set hardware volume interrupt */
1497                 snd_es18xx_mixer_write(chip, 0x64, 0x06);
1498                 if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1499                         /* MPU401 share irq with audio
1500                            Joystick enabled
1501                            FM enabled */
1502                         snd_es18xx_mixer_write(chip, 0x40,
1503                                                0x43 | (mpu_port & 0xf0) >> 1);
1504                 }
1505                 snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1506         }
1507         if (chip->caps & ES18XX_NEW_RATE) {
1508                 /* Change behaviour of register A1
1509                    4x oversampling
1510                    2nd channel DAC asynchronous */
1511                 snd_es18xx_mixer_write(chip, 0x71, 0x32);
1512         }
1513         if (!(chip->caps & ES18XX_PCM2)) {
1514                 /* Enable DMA FIFO */
1515                 snd_es18xx_write(chip, 0xB7, 0x80);
1516         }
1517         if (chip->caps & ES18XX_SPATIALIZER) {
1518                 /* Set spatializer parameters to recommended values */
1519                 snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1520                 snd_es18xx_mixer_write(chip, 0x56, 0x95);
1521                 snd_es18xx_mixer_write(chip, 0x58, 0x94);
1522                 snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1523         }
1524         /* Flip the "enable I2S" bits for those chipsets that need it */
1525         switch (chip->version) {
1526         case 0x1879:
1527                 //Leaving I2S enabled on the 1879 screws up the PCM playback (rate effected somehow)
1528                 //so a Switch control has been added to toggle this 0x71 bit on/off:
1529                 //snd_es18xx_mixer_bits(chip, 0x71, 0x40, 0x40);
1530                 /* Note: we fall through on purpose here. */
1531         case 0x1878:
1532                 snd_es18xx_config_write(chip, 0x29, snd_es18xx_config_read(chip, 0x29) | 0x40);
1533                 break;
1534         }
1535         /* Mute input source */
1536         if (chip->caps & ES18XX_MUTEREC)
1537                 mask = 0x10;
1538         if (chip->caps & ES18XX_RECMIX)
1539                 snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1540         else {
1541                 snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1542                 snd_es18xx_write(chip, 0xb4, 0x00);
1543         }
1544 #ifndef AVOID_POPS
1545         /* Enable PCM output */
1546         snd_es18xx_dsp_command(chip, 0xD1);
1547 #endif
1548 
1549         return 0;
1550 }
1551 
1552 static int snd_es18xx_identify(struct snd_es18xx *chip)
1553 {
1554         int hi,lo;
1555 
1556         /* reset */
1557         if (snd_es18xx_reset(chip) < 0) {
1558                 snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1559                 return -ENODEV;
1560         }
1561 
1562         snd_es18xx_dsp_command(chip, 0xe7);
1563         hi = snd_es18xx_dsp_get_byte(chip);
1564         if (hi < 0) {
1565                 return hi;
1566         }
1567         lo = snd_es18xx_dsp_get_byte(chip);
1568         if ((lo & 0xf0) != 0x80) {
1569                 return -ENODEV;
1570         }
1571         if (hi == 0x48) {
1572                 chip->version = 0x488;
1573                 return 0;
1574         }
1575         if (hi != 0x68) {
1576                 return -ENODEV;
1577         }
1578         if ((lo & 0x0f) < 8) {
1579                 chip->version = 0x688;
1580                 return 0;
1581         }
1582                         
1583         outb(0x40, chip->port + 0x04);
1584         udelay(10);
1585         hi = inb(chip->port + 0x05);
1586         udelay(10);
1587         lo = inb(chip->port + 0x05);
1588         if (hi != lo) {
1589                 chip->version = hi << 8 | lo;
1590                 chip->ctrl_port = inb(chip->port + 0x05) << 8;
1591                 udelay(10);
1592                 chip->ctrl_port += inb(chip->port + 0x05);
1593 
1594                 if ((chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL")) == NULL) {
1595                         snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1596                         return -EBUSY;
1597                 }
1598 
1599                 return 0;
1600         }
1601 
1602         /* If has Hardware volume */
1603         if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1604                 /* If has Audio2 */
1605                 if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1606                         /* If has volume count */
1607                         if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1608                                 chip->version = 0x1887;
1609                         } else {
1610                                 chip->version = 0x1888;
1611                         }
1612                 } else {
1613                         chip->version = 0x1788;
1614                 }
1615         }
1616         else
1617                 chip->version = 0x1688;
1618         return 0;
1619 }
1620 
1621 static int snd_es18xx_probe(struct snd_es18xx *chip,
1622                             unsigned long mpu_port,
1623                             unsigned long fm_port)
1624 {
1625         if (snd_es18xx_identify(chip) < 0) {
1626                 snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1627                 return -ENODEV;
1628         }
1629 
1630         switch (chip->version) {
1631         case 0x1868:
1632                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL;
1633                 break;
1634         case 0x1869:
1635                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV;
1636                 break;
1637         case 0x1878:
1638                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL;
1639                 break;
1640         case 0x1879:
1641                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1642                 break;
1643         case 0x1887:
1644         case 0x1888:
1645                 chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME;
1646                 break;
1647         default:
1648                 snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1649                            chip->port, chip->version);
1650                 return -ENODEV;
1651         }
1652 
1653         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1654 
1655         if (chip->dma1 == chip->dma2)
1656                 chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1657 
1658         return snd_es18xx_initialize(chip, mpu_port, fm_port);
1659 }
1660 
1661 static struct snd_pcm_ops snd_es18xx_playback_ops = {
1662         .open =         snd_es18xx_playback_open,
1663         .close =        snd_es18xx_playback_close,
1664         .ioctl =        snd_pcm_lib_ioctl,
1665         .hw_params =    snd_es18xx_playback_hw_params,
1666         .hw_free =      snd_es18xx_pcm_hw_free,
1667         .prepare =      snd_es18xx_playback_prepare,
1668         .trigger =      snd_es18xx_playback_trigger,
1669         .pointer =      snd_es18xx_playback_pointer,
1670 };
1671 
1672 static struct snd_pcm_ops snd_es18xx_capture_ops = {
1673         .open =         snd_es18xx_capture_open,
1674         .close =        snd_es18xx_capture_close,
1675         .ioctl =        snd_pcm_lib_ioctl,
1676         .hw_params =    snd_es18xx_capture_hw_params,
1677         .hw_free =      snd_es18xx_pcm_hw_free,
1678         .prepare =      snd_es18xx_capture_prepare,
1679         .trigger =      snd_es18xx_capture_trigger,
1680         .pointer =      snd_es18xx_capture_pointer,
1681 };
1682 
1683 static int snd_es18xx_pcm(struct snd_card *card, int device,
1684                           struct snd_pcm **rpcm)
1685 {
1686         struct snd_es18xx *chip = card->private_data;
1687         struct snd_pcm *pcm;
1688         char str[16];
1689         int err;
1690 
1691         if (rpcm)
1692                 *rpcm = NULL;
1693         sprintf(str, "ES%x", chip->version);
1694         if (chip->caps & ES18XX_PCM2)
1695                 err = snd_pcm_new(card, str, device, 2, 1, &pcm);
1696         else
1697                 err = snd_pcm_new(card, str, device, 1, 1, &pcm);
1698         if (err < 0)
1699                 return err;
1700 
1701         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1702         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1703 
1704         /* global setup */
1705         pcm->private_data = chip;
1706         pcm->info_flags = 0;
1707         if (chip->caps & ES18XX_DUPLEX_SAME)
1708                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1709         if (! (chip->caps & ES18XX_PCM2))
1710                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1711         sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1712         chip->pcm = pcm;
1713 
1714         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1715                                               snd_dma_isa_data(),
1716                                               64*1024,
1717                                               chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1718 
1719         if (rpcm)
1720                 *rpcm = pcm;
1721         return 0;
1722 }
1723 
1724 /* Power Management support functions */
1725 #ifdef CONFIG_PM
1726 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1727 {
1728         struct snd_es18xx *chip = card->private_data;
1729 
1730         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1731 
1732         snd_pcm_suspend_all(chip->pcm);
1733 
1734         /* power down */
1735         chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1736         chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1737         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1738         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1739 
1740         return 0;
1741 }
1742 
1743 static int snd_es18xx_resume(struct snd_card *card)
1744 {
1745         struct snd_es18xx *chip = card->private_data;
1746 
1747         /* restore PM register, we won't wake till (not 0x07) i/o activity though */
1748         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1749 
1750         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1751         return 0;
1752 }
1753 #endif /* CONFIG_PM */
1754 
1755 static int snd_es18xx_free(struct snd_card *card)
1756 {
1757         struct snd_es18xx *chip = card->private_data;
1758 
1759         release_and_free_resource(chip->res_port);
1760         release_and_free_resource(chip->res_ctrl_port);
1761         release_and_free_resource(chip->res_mpu_port);
1762         if (chip->irq >= 0)
1763                 free_irq(chip->irq, (void *) card);
1764         if (chip->dma1 >= 0) {
1765                 disable_dma(chip->dma1);
1766                 free_dma(chip->dma1);
1767         }
1768         if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1769                 disable_dma(chip->dma2);
1770                 free_dma(chip->dma2);
1771         }
1772         return 0;
1773 }
1774 
1775 static int snd_es18xx_dev_free(struct snd_device *device)
1776 {
1777         return snd_es18xx_free(device->card);
1778 }
1779 
1780 static int snd_es18xx_new_device(struct snd_card *card,
1781                                  unsigned long port,
1782                                  unsigned long mpu_port,
1783                                  unsigned long fm_port,
1784                                  int irq, int dma1, int dma2)
1785 {
1786         struct snd_es18xx *chip = card->private_data;
1787         static struct snd_device_ops ops = {
1788                 .dev_free =     snd_es18xx_dev_free,
1789         };
1790         int err;
1791 
1792         spin_lock_init(&chip->reg_lock);
1793         spin_lock_init(&chip->mixer_lock);
1794         chip->port = port;
1795         chip->irq = -1;
1796         chip->dma1 = -1;
1797         chip->dma2 = -1;
1798         chip->audio2_vol = 0x00;
1799         chip->active = 0;
1800 
1801         chip->res_port = request_region(port, 16, "ES18xx");
1802         if (chip->res_port == NULL) {
1803                 snd_es18xx_free(card);
1804                 snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1805                 return -EBUSY;
1806         }
1807 
1808         if (request_irq(irq, snd_es18xx_interrupt, 0, "ES18xx",
1809                         (void *) card)) {
1810                 snd_es18xx_free(card);
1811                 snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1812                 return -EBUSY;
1813         }
1814         chip->irq = irq;
1815 
1816         if (request_dma(dma1, "ES18xx DMA 1")) {
1817                 snd_es18xx_free(card);
1818                 snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1819                 return -EBUSY;
1820         }
1821         chip->dma1 = dma1;
1822 
1823         if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1824                 snd_es18xx_free(card);
1825                 snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1826                 return -EBUSY;
1827         }
1828         chip->dma2 = dma2;
1829 
1830         if (snd_es18xx_probe(chip, mpu_port, fm_port) < 0) {
1831                 snd_es18xx_free(card);
1832                 return -ENODEV;
1833         }
1834         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1835         if (err < 0) {
1836                 snd_es18xx_free(card);
1837                 return err;
1838         }
1839         return 0;
1840 }
1841 
1842 static int snd_es18xx_mixer(struct snd_card *card)
1843 {
1844         struct snd_es18xx *chip = card->private_data;
1845         int err;
1846         unsigned int idx;
1847 
1848         strcpy(card->mixername, chip->pcm->name);
1849 
1850         for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1851                 struct snd_kcontrol *kctl;
1852                 kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1853                 if (chip->caps & ES18XX_HWV) {
1854                         switch (idx) {
1855                         case 0:
1856                                 chip->master_volume = kctl;
1857                                 kctl->private_free = snd_es18xx_hwv_free;
1858                                 break;
1859                         case 1:
1860                                 chip->master_switch = kctl;
1861                                 kctl->private_free = snd_es18xx_hwv_free;
1862                                 break;
1863                         }
1864                 }
1865                 if ((err = snd_ctl_add(card, kctl)) < 0)
1866                         return err;
1867         }
1868         if (chip->caps & ES18XX_PCM2) {
1869                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1870                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip))) < 0)
1871                                 return err;
1872                 } 
1873         } else {
1874                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1875                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip))) < 0)
1876                                 return err;
1877                 }
1878         }
1879 
1880         if (chip->caps & ES18XX_RECMIX) {
1881                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1882                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip))) < 0)
1883                                 return err;
1884                 }
1885         }
1886         switch (chip->version) {
1887         default:
1888                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip))) < 0)
1889                         return err;
1890                 break;
1891         case 0x1869:
1892         case 0x1879:
1893                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip))) < 0)
1894                         return err;
1895                 break;
1896         }
1897         if (chip->caps & ES18XX_SPATIALIZER) {
1898                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1899                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip))) < 0)
1900                                 return err;
1901                 }
1902         }
1903         if (chip->caps & ES18XX_HWV) {
1904                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1905                         struct snd_kcontrol *kctl;
1906                         kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1907                         if (idx == 0)
1908                                 chip->hw_volume = kctl;
1909                         else
1910                                 chip->hw_switch = kctl;
1911                         kctl->private_free = snd_es18xx_hwv_free;
1912                         if ((err = snd_ctl_add(card, kctl)) < 0)
1913                                 return err;
1914                         
1915                 }
1916         }
1917         /* finish initializing other chipset specific controls
1918          */
1919         if (chip->version != 0x1868) {
1920                 err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_speaker,
1921                                                      chip));
1922                 if (err < 0)
1923                         return err;
1924         }
1925         if (chip->version == 0x1869) {
1926                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1869); idx++) {
1927                         err = snd_ctl_add(card,
1928                                           snd_ctl_new1(&snd_es18xx_opt_1869[idx],
1929                                                        chip));
1930                         if (err < 0)
1931                                 return err;
1932                 }
1933         } else if (chip->version == 0x1878) {
1934                 err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_1878,
1935                                                      chip));
1936                 if (err < 0)
1937                         return err;
1938         } else if (chip->version == 0x1879) {
1939                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1879); idx++) {
1940                         err = snd_ctl_add(card,
1941                                           snd_ctl_new1(&snd_es18xx_opt_1879[idx],
1942                                                        chip));
1943                         if (err < 0)
1944                                 return err;
1945                 }
1946         }
1947         return 0;
1948 }
1949        
1950 
1951 /* Card level */
1952 
1953 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");  
1954 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1955 MODULE_LICENSE("GPL");
1956 MODULE_SUPPORTED_DEVICE("{{ESS,ES1868 PnP AudioDrive},"
1957                 "{ESS,ES1869 PnP AudioDrive},"
1958                 "{ESS,ES1878 PnP AudioDrive},"
1959                 "{ESS,ES1879 PnP AudioDrive},"
1960                 "{ESS,ES1887 PnP AudioDrive},"
1961                 "{ESS,ES1888 PnP AudioDrive},"
1962                 "{ESS,ES1887 AudioDrive},"
1963                 "{ESS,ES1888 AudioDrive}}");
1964 
1965 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
1966 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
1967 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1968 #ifdef CONFIG_PNP
1969 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
1970 #endif
1971 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260,0x280 */
1972 #ifndef CONFIG_PNP
1973 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
1974 #else
1975 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1976 #endif
1977 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1978 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
1979 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1980 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1981 
1982 module_param_array(index, int, NULL, 0444);
1983 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
1984 module_param_array(id, charp, NULL, 0444);
1985 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
1986 module_param_array(enable, bool, NULL, 0444);
1987 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
1988 #ifdef CONFIG_PNP
1989 module_param_array(isapnp, bool, NULL, 0444);
1990 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
1991 #endif
1992 module_param_array(port, long, NULL, 0444);
1993 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
1994 module_param_array(mpu_port, long, NULL, 0444);
1995 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
1996 module_param_array(fm_port, long, NULL, 0444);
1997 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
1998 module_param_array(irq, int, NULL, 0444);
1999 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
2000 module_param_array(dma1, int, NULL, 0444);
2001 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
2002 module_param_array(dma2, int, NULL, 0444);
2003 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
2004 
2005 #ifdef CONFIG_PNP
2006 static int isa_registered;
2007 static int pnp_registered;
2008 static int pnpc_registered;
2009 
2010 static struct pnp_device_id snd_audiodrive_pnpbiosids[] = {
2011         { .id = "ESS1869" },
2012         { .id = "ESS1879" },
2013         { .id = "" }            /* end */
2014 };
2015 
2016 MODULE_DEVICE_TABLE(pnp, snd_audiodrive_pnpbiosids);
2017 
2018 /* PnP main device initialization */
2019 static int snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
2020 {
2021         if (pnp_activate_dev(pdev) < 0) {
2022                 snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
2023                 return -EBUSY;
2024         }
2025         /* ok. hack using Vendor-Defined Card-Level registers */
2026         /* skip csn and logdev initialization - already done in isapnp_configure */
2027         if (pnp_device_is_isapnp(pdev)) {
2028                 isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
2029                 isapnp_write_byte(0x27, pnp_irq(pdev, 0));      /* Hardware Volume IRQ Number */
2030                 if (mpu_port[dev] != SNDRV_AUTO_PORT)
2031                         isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
2032                 isapnp_write_byte(0x72, pnp_irq(pdev, 0));      /* second IRQ */
2033                 isapnp_cfg_end();
2034         }
2035         port[dev] = pnp_port_start(pdev, 0);
2036         fm_port[dev] = pnp_port_start(pdev, 1);
2037         mpu_port[dev] = pnp_port_start(pdev, 2);
2038         dma1[dev] = pnp_dma(pdev, 0);
2039         dma2[dev] = pnp_dma(pdev, 1);
2040         irq[dev] = pnp_irq(pdev, 0);
2041         snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
2042         snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
2043         return 0;
2044 }
2045 
2046 static int snd_audiodrive_pnp(int dev, struct snd_es18xx *chip,
2047                               struct pnp_dev *pdev)
2048 {
2049         chip->dev = pdev;
2050         if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2051                 return -EBUSY;
2052         return 0;
2053 }
2054 
2055 static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
2056         /* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
2057         { .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
2058         /* ESS 1868 (integrated on Maxisound Cards) */
2059         { .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
2060         /* ESS 1868 (integrated on Maxisound Cards) */
2061         { .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
2062         /* ESS ES1869 Plug and Play AudioDrive */
2063         { .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
2064         /* ESS 1869 */
2065         { .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
2066         /* ESS 1878 */
2067         { .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
2068         /* ESS 1879 */
2069         { .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
2070         /* --- */
2071         { .id = "" } /* end */
2072 };
2073 
2074 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
2075 
2076 static int snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip,
2077                                struct pnp_card_link *card,
2078                                const struct pnp_card_device_id *id)
2079 {
2080         chip->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
2081         if (chip->dev == NULL)
2082                 return -EBUSY;
2083 
2084         chip->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
2085         if (chip->devc == NULL)
2086                 return -EBUSY;
2087 
2088         /* Control port initialization */
2089         if (pnp_activate_dev(chip->devc) < 0) {
2090                 snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
2091                 return -EAGAIN;
2092         }
2093         snd_printdd("pnp: port=0x%llx\n",
2094                         (unsigned long long)pnp_port_start(chip->devc, 0));
2095         if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2096                 return -EBUSY;
2097 
2098         return 0;
2099 }
2100 #endif /* CONFIG_PNP */
2101 
2102 #ifdef CONFIG_PNP
2103 #define is_isapnp_selected(dev)         isapnp[dev]
2104 #else
2105 #define is_isapnp_selected(dev)         0
2106 #endif
2107 
2108 static int snd_es18xx_card_new(struct device *pdev, int dev,
2109                                struct snd_card **cardp)
2110 {
2111         return snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
2112                             sizeof(struct snd_es18xx), cardp);
2113 }
2114 
2115 static int snd_audiodrive_probe(struct snd_card *card, int dev)
2116 {
2117         struct snd_es18xx *chip = card->private_data;
2118         struct snd_opl3 *opl3;
2119         int err;
2120 
2121         err = snd_es18xx_new_device(card,
2122                                     port[dev], mpu_port[dev], fm_port[dev],
2123                                     irq[dev], dma1[dev], dma2[dev]);
2124         if (err < 0)
2125                 return err;
2126 
2127         sprintf(card->driver, "ES%x", chip->version);
2128         
2129         sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2130         if (dma1[dev] != dma2[dev])
2131                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2132                         card->shortname,
2133                         chip->port,
2134                         irq[dev], dma1[dev], dma2[dev]);
2135         else
2136                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2137                         card->shortname,
2138                         chip->port,
2139                         irq[dev], dma1[dev]);
2140 
2141         err = snd_es18xx_pcm(card, 0, NULL);
2142         if (err < 0)
2143                 return err;
2144 
2145         err = snd_es18xx_mixer(card);
2146         if (err < 0)
2147                 return err;
2148 
2149         if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2150                 if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
2151                                     OPL3_HW_OPL3, 0, &opl3) < 0) {
2152                         snd_printk(KERN_WARNING PFX
2153                                    "opl3 not detected at 0x%lx\n",
2154                                    fm_port[dev]);
2155                 } else {
2156                         err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
2157                         if (err < 0)
2158                                 return err;
2159                 }
2160         }
2161 
2162         if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2163                 err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2164                                           mpu_port[dev], MPU401_INFO_IRQ_HOOK,
2165                                           -1, &chip->rmidi);
2166                 if (err < 0)
2167                         return err;
2168         }
2169 
2170         return snd_card_register(card);
2171 }
2172 
2173 static int snd_es18xx_isa_match(struct device *pdev, unsigned int dev)
2174 {
2175         return enable[dev] && !is_isapnp_selected(dev);
2176 }
2177 
2178 static int snd_es18xx_isa_probe1(int dev, struct device *devptr)
2179 {
2180         struct snd_card *card;
2181         int err;
2182 
2183         err = snd_es18xx_card_new(devptr, dev, &card);
2184         if (err < 0)
2185                 return err;
2186         if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2187                 snd_card_free(card);
2188                 return err;
2189         }
2190         dev_set_drvdata(devptr, card);
2191         return 0;
2192 }
2193 
2194 static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
2195 {
2196         int err;
2197         static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2198         static int possible_dmas[] = {1, 0, 3, 5, -1};
2199 
2200         if (irq[dev] == SNDRV_AUTO_IRQ) {
2201                 if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
2202                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2203                         return -EBUSY;
2204                 }
2205         }
2206         if (dma1[dev] == SNDRV_AUTO_DMA) {
2207                 if ((dma1[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2208                         snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2209                         return -EBUSY;
2210                 }
2211         }
2212         if (dma2[dev] == SNDRV_AUTO_DMA) {
2213                 if ((dma2[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2214                         snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2215                         return -EBUSY;
2216                 }
2217         }
2218 
2219         if (port[dev] != SNDRV_AUTO_PORT) {
2220                 return snd_es18xx_isa_probe1(dev, pdev);
2221         } else {
2222                 static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2223                 int i;
2224                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2225                         port[dev] = possible_ports[i];
2226                         err = snd_es18xx_isa_probe1(dev, pdev);
2227                         if (! err)
2228                                 return 0;
2229                 }
2230                 return err;
2231         }
2232 }
2233 
2234 static int snd_es18xx_isa_remove(struct device *devptr,
2235                                  unsigned int dev)
2236 {
2237         snd_card_free(dev_get_drvdata(devptr));
2238         return 0;
2239 }
2240 
2241 #ifdef CONFIG_PM
2242 static int snd_es18xx_isa_suspend(struct device *dev, unsigned int n,
2243                                   pm_message_t state)
2244 {
2245         return snd_es18xx_suspend(dev_get_drvdata(dev), state);
2246 }
2247 
2248 static int snd_es18xx_isa_resume(struct device *dev, unsigned int n)
2249 {
2250         return snd_es18xx_resume(dev_get_drvdata(dev));
2251 }
2252 #endif
2253 
2254 #define DEV_NAME "es18xx"
2255 
2256 static struct isa_driver snd_es18xx_isa_driver = {
2257         .match          = snd_es18xx_isa_match,
2258         .probe          = snd_es18xx_isa_probe,
2259         .remove         = snd_es18xx_isa_remove,
2260 #ifdef CONFIG_PM
2261         .suspend        = snd_es18xx_isa_suspend,
2262         .resume         = snd_es18xx_isa_resume,
2263 #endif
2264         .driver         = {
2265                 .name   = DEV_NAME
2266         },
2267 };
2268 
2269 
2270 #ifdef CONFIG_PNP
2271 static int snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
2272                                      const struct pnp_device_id *id)
2273 {
2274         static int dev;
2275         int err;
2276         struct snd_card *card;
2277 
2278         if (pnp_device_is_isapnp(pdev))
2279                 return -ENOENT; /* we have another procedure - card */
2280         for (; dev < SNDRV_CARDS; dev++) {
2281                 if (enable[dev] && isapnp[dev])
2282                         break;
2283         }
2284         if (dev >= SNDRV_CARDS)
2285                 return -ENODEV;
2286 
2287         err = snd_es18xx_card_new(&pdev->dev, dev, &card);
2288         if (err < 0)
2289                 return err;
2290         if ((err = snd_audiodrive_pnp(dev, card->private_data, pdev)) < 0) {
2291                 snd_card_free(card);
2292                 return err;
2293         }
2294         if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2295                 snd_card_free(card);
2296                 return err;
2297         }
2298         pnp_set_drvdata(pdev, card);
2299         dev++;
2300         return 0;
2301 }
2302 
2303 static void snd_audiodrive_pnp_remove(struct pnp_dev *pdev)
2304 {
2305         snd_card_free(pnp_get_drvdata(pdev));
2306 }
2307 
2308 #ifdef CONFIG_PM
2309 static int snd_audiodrive_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
2310 {
2311         return snd_es18xx_suspend(pnp_get_drvdata(pdev), state);
2312 }
2313 static int snd_audiodrive_pnp_resume(struct pnp_dev *pdev)
2314 {
2315         return snd_es18xx_resume(pnp_get_drvdata(pdev));
2316 }
2317 #endif
2318 
2319 static struct pnp_driver es18xx_pnp_driver = {
2320         .name = "es18xx-pnpbios",
2321         .id_table = snd_audiodrive_pnpbiosids,
2322         .probe = snd_audiodrive_pnp_detect,
2323         .remove = snd_audiodrive_pnp_remove,
2324 #ifdef CONFIG_PM
2325         .suspend = snd_audiodrive_pnp_suspend,
2326         .resume = snd_audiodrive_pnp_resume,
2327 #endif
2328 };
2329 
2330 static int snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
2331                                       const struct pnp_card_device_id *pid)
2332 {
2333         static int dev;
2334         struct snd_card *card;
2335         int res;
2336 
2337         for ( ; dev < SNDRV_CARDS; dev++) {
2338                 if (enable[dev] && isapnp[dev])
2339                         break;
2340         }
2341         if (dev >= SNDRV_CARDS)
2342                 return -ENODEV;
2343 
2344         res = snd_es18xx_card_new(&pcard->card->dev, dev, &card);
2345         if (res < 0)
2346                 return res;
2347 
2348         if ((res = snd_audiodrive_pnpc(dev, card->private_data, pcard, pid)) < 0) {
2349                 snd_card_free(card);
2350                 return res;
2351         }
2352         if ((res = snd_audiodrive_probe(card, dev)) < 0) {
2353                 snd_card_free(card);
2354                 return res;
2355         }
2356 
2357         pnp_set_card_drvdata(pcard, card);
2358         dev++;
2359         return 0;
2360 }
2361 
2362 static void snd_audiodrive_pnpc_remove(struct pnp_card_link *pcard)
2363 {
2364         snd_card_free(pnp_get_card_drvdata(pcard));
2365         pnp_set_card_drvdata(pcard, NULL);
2366 }
2367 
2368 #ifdef CONFIG_PM
2369 static int snd_audiodrive_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state)
2370 {
2371         return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2372 }
2373 
2374 static int snd_audiodrive_pnpc_resume(struct pnp_card_link *pcard)
2375 {
2376         return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2377 }
2378 
2379 #endif
2380 
2381 static struct pnp_card_driver es18xx_pnpc_driver = {
2382         .flags = PNP_DRIVER_RES_DISABLE,
2383         .name = "es18xx",
2384         .id_table = snd_audiodrive_pnpids,
2385         .probe = snd_audiodrive_pnpc_detect,
2386         .remove = snd_audiodrive_pnpc_remove,
2387 #ifdef CONFIG_PM
2388         .suspend        = snd_audiodrive_pnpc_suspend,
2389         .resume         = snd_audiodrive_pnpc_resume,
2390 #endif
2391 };
2392 #endif /* CONFIG_PNP */
2393 
2394 static int __init alsa_card_es18xx_init(void)
2395 {
2396         int err;
2397 
2398         err = isa_register_driver(&snd_es18xx_isa_driver, SNDRV_CARDS);
2399 #ifdef CONFIG_PNP
2400         if (!err)
2401                 isa_registered = 1;
2402 
2403         err = pnp_register_driver(&es18xx_pnp_driver);
2404         if (!err)
2405                 pnp_registered = 1;
2406 
2407         err = pnp_register_card_driver(&es18xx_pnpc_driver);
2408         if (!err)
2409                 pnpc_registered = 1;
2410 
2411         if (isa_registered || pnp_registered)
2412                 err = 0;
2413 #endif
2414         return err;
2415 }
2416 
2417 static void __exit alsa_card_es18xx_exit(void)
2418 {
2419 #ifdef CONFIG_PNP
2420         if (pnpc_registered)
2421                 pnp_unregister_card_driver(&es18xx_pnpc_driver);
2422         if (pnp_registered)
2423                 pnp_unregister_driver(&es18xx_pnp_driver);
2424         if (isa_registered)
2425 #endif
2426                 isa_unregister_driver(&snd_es18xx_isa_driver);
2427 }
2428 
2429 module_init(alsa_card_es18xx_init)
2430 module_exit(alsa_card_es18xx_exit)
2431 

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