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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 #include <linux/io.h>
 88 
 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 #define ES18XX_GPO_2BIT 0x1000  /* GPO0,1 controlled by PM port */
160 
161 /* Power Management */
162 #define ES18XX_PM       0x07
163 #define ES18XX_PM_GPO0  0x01
164 #define ES18XX_PM_GPO1  0x02
165 #define ES18XX_PM_PDR   0x04
166 #define ES18XX_PM_ANA   0x08
167 #define ES18XX_PM_FM    0x020
168 #define ES18XX_PM_SUS   0x080
169 
170 /* Lowlevel */
171 
172 #define DAC1 0x01
173 #define ADC1 0x02
174 #define DAC2 0x04
175 #define MILLISECOND 10000
176 
177 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
178 {
179         int i;
180 
181         for(i = MILLISECOND; i; i--)
182                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
183                         outb(val, chip->port + 0x0C);
184                         return 0;
185                 }
186         snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
187         return -EINVAL;
188 }
189 
190 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
191 {
192         int i;
193 
194         for(i = MILLISECOND/10; i; i--)
195                 if (inb(chip->port + 0x0C) & 0x40)
196                         return inb(chip->port + 0x0A);
197         snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
198                    chip->port + 0x0A, inb(chip->port + 0x0A));
199         return -ENODEV;
200 }
201 
202 #undef REG_DEBUG
203 
204 static int snd_es18xx_write(struct snd_es18xx *chip,
205                             unsigned char reg, unsigned char data)
206 {
207         unsigned long flags;
208         int ret;
209         
210         spin_lock_irqsave(&chip->reg_lock, flags);
211         ret = snd_es18xx_dsp_command(chip, reg);
212         if (ret < 0)
213                 goto end;
214         ret = snd_es18xx_dsp_command(chip, data);
215  end:
216         spin_unlock_irqrestore(&chip->reg_lock, flags);
217 #ifdef REG_DEBUG
218         snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
219 #endif
220         return ret;
221 }
222 
223 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
224 {
225         unsigned long flags;
226         int ret, data;
227         spin_lock_irqsave(&chip->reg_lock, flags);
228         ret = snd_es18xx_dsp_command(chip, 0xC0);
229         if (ret < 0)
230                 goto end;
231         ret = snd_es18xx_dsp_command(chip, reg);
232         if (ret < 0)
233                 goto end;
234         data = snd_es18xx_dsp_get_byte(chip);
235         ret = data;
236 #ifdef REG_DEBUG
237         snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
238 #endif
239  end:
240         spin_unlock_irqrestore(&chip->reg_lock, flags);
241         return ret;
242 }
243 
244 /* Return old value */
245 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
246                            unsigned char mask, unsigned char val)
247 {
248         int ret;
249         unsigned char old, new, oval;
250         unsigned long flags;
251         spin_lock_irqsave(&chip->reg_lock, flags);
252         ret = snd_es18xx_dsp_command(chip, 0xC0);
253         if (ret < 0)
254                 goto end;
255         ret = snd_es18xx_dsp_command(chip, reg);
256         if (ret < 0)
257                 goto end;
258         ret = snd_es18xx_dsp_get_byte(chip);
259         if (ret < 0) {
260                 goto end;
261         }
262         old = ret;
263         oval = old & mask;
264         if (val != oval) {
265                 ret = snd_es18xx_dsp_command(chip, reg);
266                 if (ret < 0)
267                         goto end;
268                 new = (old & ~mask) | (val & mask);
269                 ret = snd_es18xx_dsp_command(chip, new);
270                 if (ret < 0)
271                         goto end;
272 #ifdef REG_DEBUG
273                 snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
274                            reg, old, new, ret);
275 #endif
276         }
277         ret = oval;
278  end:
279         spin_unlock_irqrestore(&chip->reg_lock, flags);
280         return ret;
281 }
282 
283 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
284                             unsigned char reg, unsigned char data)
285 {
286         unsigned long flags;
287         spin_lock_irqsave(&chip->mixer_lock, flags);
288         outb(reg, chip->port + 0x04);
289         outb(data, chip->port + 0x05);
290         spin_unlock_irqrestore(&chip->mixer_lock, flags);
291 #ifdef REG_DEBUG
292         snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
293 #endif
294 }
295 
296 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
297 {
298         unsigned long flags;
299         int data;
300         spin_lock_irqsave(&chip->mixer_lock, flags);
301         outb(reg, chip->port + 0x04);
302         data = inb(chip->port + 0x05);
303         spin_unlock_irqrestore(&chip->mixer_lock, flags);
304 #ifdef REG_DEBUG
305         snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
306 #endif
307         return data;
308 }
309 
310 /* Return old value */
311 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
312                                         unsigned char mask, unsigned char val)
313 {
314         unsigned char old, new, oval;
315         unsigned long flags;
316         spin_lock_irqsave(&chip->mixer_lock, flags);
317         outb(reg, chip->port + 0x04);
318         old = inb(chip->port + 0x05);
319         oval = old & mask;
320         if (val != oval) {
321                 new = (old & ~mask) | (val & mask);
322                 outb(new, chip->port + 0x05);
323 #ifdef REG_DEBUG
324                 snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
325                            reg, old, new);
326 #endif
327         }
328         spin_unlock_irqrestore(&chip->mixer_lock, flags);
329         return oval;
330 }
331 
332 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
333                                             unsigned char mask)
334 {
335         int old, expected, new;
336         unsigned long flags;
337         spin_lock_irqsave(&chip->mixer_lock, flags);
338         outb(reg, chip->port + 0x04);
339         old = inb(chip->port + 0x05);
340         expected = old ^ mask;
341         outb(expected, chip->port + 0x05);
342         new = inb(chip->port + 0x05);
343         spin_unlock_irqrestore(&chip->mixer_lock, flags);
344 #ifdef REG_DEBUG
345         snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
346                    reg, old, expected, new);
347 #endif
348         return expected == new;
349 }
350 
351 
352 static int snd_es18xx_reset(struct snd_es18xx *chip)
353 {
354         int i;
355         outb(0x03, chip->port + 0x06);
356         inb(chip->port + 0x06);
357         outb(0x00, chip->port + 0x06);
358         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
359         if (inb(chip->port + 0x0A) != 0xAA)
360                 return -1;
361         return 0;
362 }
363 
364 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
365 {
366         outb(0x02, chip->port + 0x06);
367         inb(chip->port + 0x06);
368         outb(0x00, chip->port + 0x06);
369         return 0;
370 }
371 
372 static struct snd_ratnum new_clocks[2] = {
373         {
374                 .num = 793800,
375                 .den_min = 1,
376                 .den_max = 128,
377                 .den_step = 1,
378         },
379         {
380                 .num = 768000,
381                 .den_min = 1,
382                 .den_max = 128,
383                 .den_step = 1,
384         }
385 };
386 
387 static struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
388         .nrats = 2,
389         .rats = new_clocks,
390 };
391 
392 static struct snd_ratnum old_clocks[2] = {
393         {
394                 .num = 795444,
395                 .den_min = 1,
396                 .den_max = 128,
397                 .den_step = 1,
398         },
399         {
400                 .num = 397722,
401                 .den_min = 1,
402                 .den_max = 128,
403                 .den_step = 1,
404         }
405 };
406 
407 static struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
408         .nrats = 2,
409         .rats = old_clocks,
410 };
411 
412 
413 static void snd_es18xx_rate_set(struct snd_es18xx *chip, 
414                                 struct snd_pcm_substream *substream,
415                                 int mode)
416 {
417         unsigned int bits, div0;
418         struct snd_pcm_runtime *runtime = substream->runtime;
419         if (chip->caps & ES18XX_NEW_RATE) {
420                 if (runtime->rate_num == new_clocks[0].num)
421                         bits = 128 - runtime->rate_den;
422                 else
423                         bits = 256 - runtime->rate_den;
424         } else {
425                 if (runtime->rate_num == old_clocks[0].num)
426                         bits = 256 - runtime->rate_den;
427                 else
428                         bits = 128 - runtime->rate_den;
429         }
430 
431         /* set filter register */
432         div0 = 256 - 7160000*20/(8*82*runtime->rate);
433                 
434         if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
435                 snd_es18xx_mixer_write(chip, 0x70, bits);
436                 /*
437                  * Comment from kernel oss driver:
438                  * FKS: fascinating: 0x72 doesn't seem to work.
439                  */
440                 snd_es18xx_write(chip, 0xA2, div0);
441                 snd_es18xx_mixer_write(chip, 0x72, div0);
442         } else {
443                 snd_es18xx_write(chip, 0xA1, bits);
444                 snd_es18xx_write(chip, 0xA2, div0);
445         }
446 }
447 
448 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
449                                          struct snd_pcm_hw_params *hw_params)
450 {
451         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
452         int shift, err;
453 
454         shift = 0;
455         if (params_channels(hw_params) == 2)
456                 shift++;
457         if (snd_pcm_format_width(params_format(hw_params)) == 16)
458                 shift++;
459 
460         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
461                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
462                     (chip->capture_a_substream) &&
463                     params_channels(hw_params) != 1) {
464                         _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
465                         return -EBUSY;
466                 }
467                 chip->dma2_shift = shift;
468         } else {
469                 chip->dma1_shift = shift;
470         }
471         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
472                 return err;
473         return 0;
474 }
475 
476 static int snd_es18xx_pcm_hw_free(struct snd_pcm_substream *substream)
477 {
478         return snd_pcm_lib_free_pages(substream);
479 }
480 
481 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
482                                         struct snd_pcm_substream *substream)
483 {
484         struct snd_pcm_runtime *runtime = substream->runtime;
485         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
486         unsigned int count = snd_pcm_lib_period_bytes(substream);
487 
488         snd_es18xx_rate_set(chip, substream, DAC2);
489 
490         /* Transfer Count Reload */
491         count = 0x10000 - count;
492         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
493         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
494 
495         /* Set format */
496         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
497                               ((runtime->channels == 1) ? 0x00 : 0x02) |
498                               (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
499                               (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
500 
501         /* Set DMA controller */
502         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
503 
504         return 0;
505 }
506 
507 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
508                                         struct snd_pcm_substream *substream,
509                                         int cmd)
510 {
511         switch (cmd) {
512         case SNDRV_PCM_TRIGGER_START:
513         case SNDRV_PCM_TRIGGER_RESUME:
514                 if (chip->active & DAC2)
515                         return 0;
516                 chip->active |= DAC2;
517                 /* Start DMA */
518                 if (chip->dma2 >= 4)
519                         snd_es18xx_mixer_write(chip, 0x78, 0xb3);
520                 else
521                         snd_es18xx_mixer_write(chip, 0x78, 0x93);
522 #ifdef AVOID_POPS
523                 /* Avoid pops */
524                 mdelay(100);
525                 if (chip->caps & ES18XX_PCM2)
526                         /* Restore Audio 2 volume */
527                         snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
528                 else
529                         /* Enable PCM output */
530                         snd_es18xx_dsp_command(chip, 0xD1);
531 #endif
532                 break;
533         case SNDRV_PCM_TRIGGER_STOP:
534         case SNDRV_PCM_TRIGGER_SUSPEND:
535                 if (!(chip->active & DAC2))
536                         return 0;
537                 chip->active &= ~DAC2;
538                 /* Stop DMA */
539                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
540 #ifdef AVOID_POPS
541                 mdelay(25);
542                 if (chip->caps & ES18XX_PCM2)
543                         /* Set Audio 2 volume to 0 */
544                         snd_es18xx_mixer_write(chip, 0x7C, 0);
545                 else
546                         /* Disable PCM output */
547                         snd_es18xx_dsp_command(chip, 0xD3);
548 #endif
549                 break;
550         default:
551                 return -EINVAL;
552         }
553 
554         return 0;
555 }
556 
557 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
558                                         struct snd_pcm_hw_params *hw_params)
559 {
560         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
561         int shift, err;
562 
563         shift = 0;
564         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
565             chip->playback_a_substream &&
566             params_channels(hw_params) != 1) {
567                 _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
568                 return -EBUSY;
569         }
570         if (params_channels(hw_params) == 2)
571                 shift++;
572         if (snd_pcm_format_width(params_format(hw_params)) == 16)
573                 shift++;
574         chip->dma1_shift = shift;
575         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
576                 return err;
577         return 0;
578 }
579 
580 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
581 {
582         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
583         struct snd_pcm_runtime *runtime = substream->runtime;
584         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
585         unsigned int count = snd_pcm_lib_period_bytes(substream);
586 
587         snd_es18xx_reset_fifo(chip);
588 
589         /* Set stereo/mono */
590         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
591 
592         snd_es18xx_rate_set(chip, substream, ADC1);
593 
594         /* Transfer Count Reload */
595         count = 0x10000 - count;
596         snd_es18xx_write(chip, 0xA4, count & 0xff);
597         snd_es18xx_write(chip, 0xA5, count >> 8);
598 
599 #ifdef AVOID_POPS
600         mdelay(100);
601 #endif
602 
603         /* Set format */
604         snd_es18xx_write(chip, 0xB7, 
605                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
606         snd_es18xx_write(chip, 0xB7, 0x90 |
607                          ((runtime->channels == 1) ? 0x40 : 0x08) |
608                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
609                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
610 
611         /* Set DMA controller */
612         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
613 
614         return 0;
615 }
616 
617 static int snd_es18xx_capture_trigger(struct snd_pcm_substream *substream,
618                                       int cmd)
619 {
620         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
621 
622         switch (cmd) {
623         case SNDRV_PCM_TRIGGER_START:
624         case SNDRV_PCM_TRIGGER_RESUME:
625                 if (chip->active & ADC1)
626                         return 0;
627                 chip->active |= ADC1;
628                 /* Start DMA */
629                 snd_es18xx_write(chip, 0xB8, 0x0f);
630                 break;
631         case SNDRV_PCM_TRIGGER_STOP:
632         case SNDRV_PCM_TRIGGER_SUSPEND:
633                 if (!(chip->active & ADC1))
634                         return 0;
635                 chip->active &= ~ADC1;
636                 /* Stop DMA */
637                 snd_es18xx_write(chip, 0xB8, 0x00);
638                 break;
639         default:
640                 return -EINVAL;
641         }
642 
643         return 0;
644 }
645 
646 static int snd_es18xx_playback2_prepare(struct snd_es18xx *chip,
647                                         struct snd_pcm_substream *substream)
648 {
649         struct snd_pcm_runtime *runtime = substream->runtime;
650         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
651         unsigned int count = snd_pcm_lib_period_bytes(substream);
652 
653         snd_es18xx_reset_fifo(chip);
654 
655         /* Set stereo/mono */
656         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
657 
658         snd_es18xx_rate_set(chip, substream, DAC1);
659 
660         /* Transfer Count Reload */
661         count = 0x10000 - count;
662         snd_es18xx_write(chip, 0xA4, count & 0xff);
663         snd_es18xx_write(chip, 0xA5, count >> 8);
664 
665         /* Set format */
666         snd_es18xx_write(chip, 0xB6,
667                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
668         snd_es18xx_write(chip, 0xB7, 
669                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
670         snd_es18xx_write(chip, 0xB7, 0x90 |
671                          (runtime->channels == 1 ? 0x40 : 0x08) |
672                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
673                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
674 
675         /* Set DMA controller */
676         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
677 
678         return 0;
679 }
680 
681 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
682                                         struct snd_pcm_substream *substream,
683                                         int cmd)
684 {
685         switch (cmd) {
686         case SNDRV_PCM_TRIGGER_START:
687         case SNDRV_PCM_TRIGGER_RESUME:
688                 if (chip->active & DAC1)
689                         return 0;
690                 chip->active |= DAC1;
691                 /* Start DMA */
692                 snd_es18xx_write(chip, 0xB8, 0x05);
693 #ifdef AVOID_POPS
694                 /* Avoid pops */
695                 mdelay(100);
696                 /* Enable Audio 1 */
697                 snd_es18xx_dsp_command(chip, 0xD1);
698 #endif
699                 break;
700         case SNDRV_PCM_TRIGGER_STOP:
701         case SNDRV_PCM_TRIGGER_SUSPEND:
702                 if (!(chip->active & DAC1))
703                         return 0;
704                 chip->active &= ~DAC1;
705                 /* Stop DMA */
706                 snd_es18xx_write(chip, 0xB8, 0x00);
707 #ifdef AVOID_POPS
708                 /* Avoid pops */
709                 mdelay(25);
710                 /* Disable Audio 1 */
711                 snd_es18xx_dsp_command(chip, 0xD3);
712 #endif
713                 break;
714         default:
715                 return -EINVAL;
716         }
717 
718         return 0;
719 }
720 
721 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
722 {
723         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
724         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
725                 return snd_es18xx_playback1_prepare(chip, substream);
726         else
727                 return snd_es18xx_playback2_prepare(chip, substream);
728 }
729 
730 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
731                                        int cmd)
732 {
733         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
734         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
735                 return snd_es18xx_playback1_trigger(chip, substream, cmd);
736         else
737                 return snd_es18xx_playback2_trigger(chip, substream, cmd);
738 }
739 
740 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id)
741 {
742         struct snd_card *card = dev_id;
743         struct snd_es18xx *chip = card->private_data;
744         unsigned char status;
745 
746         if (chip->caps & ES18XX_CONTROL) {
747                 /* Read Interrupt status */
748                 status = inb(chip->ctrl_port + 6);
749         } else {
750                 /* Read Interrupt status */
751                 status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
752         }
753 #if 0
754         else {
755                 status = 0;
756                 if (inb(chip->port + 0x0C) & 0x01)
757                         status |= AUDIO1_IRQ;
758                 if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
759                         status |= AUDIO2_IRQ;
760                 if ((chip->caps & ES18XX_HWV) &&
761                     snd_es18xx_mixer_read(chip, 0x64) & 0x10)
762                         status |= HWV_IRQ;
763         }
764 #endif
765 
766         /* Audio 1 & Audio 2 */
767         if (status & AUDIO2_IRQ) {
768                 if (chip->active & DAC2)
769                         snd_pcm_period_elapsed(chip->playback_a_substream);
770                 /* ack interrupt */
771                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
772         }
773         if (status & AUDIO1_IRQ) {
774                 /* ok.. capture is active */
775                 if (chip->active & ADC1)
776                         snd_pcm_period_elapsed(chip->capture_a_substream);
777                 /* ok.. playback2 is active */
778                 else if (chip->active & DAC1)
779                         snd_pcm_period_elapsed(chip->playback_b_substream);
780                 /* ack interrupt */
781                 inb(chip->port + 0x0E);
782         }
783 
784         /* MPU */
785         if ((status & MPU_IRQ) && chip->rmidi)
786                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
787 
788         /* Hardware volume */
789         if (status & HWV_IRQ) {
790                 int split = 0;
791                 if (chip->caps & ES18XX_HWV) {
792                         split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
793                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
794                                         &chip->hw_switch->id);
795                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
796                                         &chip->hw_volume->id);
797                 }
798                 if (!split) {
799                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
800                                         &chip->master_switch->id);
801                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
802                                         &chip->master_volume->id);
803                 }
804                 /* ack interrupt */
805                 snd_es18xx_mixer_write(chip, 0x66, 0x00);
806         }
807         return IRQ_HANDLED;
808 }
809 
810 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
811 {
812         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
813         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
814         int pos;
815 
816         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
817                 if (!(chip->active & DAC2))
818                         return 0;
819                 pos = snd_dma_pointer(chip->dma2, size);
820                 return pos >> chip->dma2_shift;
821         } else {
822                 if (!(chip->active & DAC1))
823                         return 0;
824                 pos = snd_dma_pointer(chip->dma1, size);
825                 return pos >> chip->dma1_shift;
826         }
827 }
828 
829 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
830 {
831         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
832         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
833         int pos;
834 
835         if (!(chip->active & ADC1))
836                 return 0;
837         pos = snd_dma_pointer(chip->dma1, size);
838         return pos >> chip->dma1_shift;
839 }
840 
841 static struct snd_pcm_hardware snd_es18xx_playback =
842 {
843         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
844                                  SNDRV_PCM_INFO_RESUME |
845                                  SNDRV_PCM_INFO_MMAP_VALID),
846         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
847                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
848         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
849         .rate_min =             4000,
850         .rate_max =             48000,
851         .channels_min =         1,
852         .channels_max =         2,
853         .buffer_bytes_max =     65536,
854         .period_bytes_min =     64,
855         .period_bytes_max =     65536,
856         .periods_min =          1,
857         .periods_max =          1024,
858         .fifo_size =            0,
859 };
860 
861 static struct snd_pcm_hardware snd_es18xx_capture =
862 {
863         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
864                                  SNDRV_PCM_INFO_RESUME |
865                                  SNDRV_PCM_INFO_MMAP_VALID),
866         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
867                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
868         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
869         .rate_min =             4000,
870         .rate_max =             48000,
871         .channels_min =         1,
872         .channels_max =         2,
873         .buffer_bytes_max =     65536,
874         .period_bytes_min =     64,
875         .period_bytes_max =     65536,
876         .periods_min =          1,
877         .periods_max =          1024,
878         .fifo_size =            0,
879 };
880 
881 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
882 {
883         struct snd_pcm_runtime *runtime = substream->runtime;
884         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
885 
886         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
887                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
888                     chip->capture_a_substream && 
889                     chip->capture_a_substream->runtime->channels != 1)
890                         return -EAGAIN;
891                 chip->playback_a_substream = substream;
892         } else if (substream->number <= 1) {
893                 if (chip->capture_a_substream)
894                         return -EAGAIN;
895                 chip->playback_b_substream = substream;
896         } else {
897                 snd_BUG();
898                 return -EINVAL;
899         }
900         substream->runtime->hw = snd_es18xx_playback;
901         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
902                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
903         return 0;
904 }
905 
906 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
907 {
908         struct snd_pcm_runtime *runtime = substream->runtime;
909         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
910 
911         if (chip->playback_b_substream)
912                 return -EAGAIN;
913         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
914             chip->playback_a_substream &&
915             chip->playback_a_substream->runtime->channels != 1)
916                 return -EAGAIN;
917         chip->capture_a_substream = substream;
918         substream->runtime->hw = snd_es18xx_capture;
919         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
920                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
921         return 0;
922 }
923 
924 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
925 {
926         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
927 
928         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
929                 chip->playback_a_substream = NULL;
930         else
931                 chip->playback_b_substream = NULL;
932         
933         snd_pcm_lib_free_pages(substream);
934         return 0;
935 }
936 
937 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
938 {
939         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
940 
941         chip->capture_a_substream = NULL;
942         snd_pcm_lib_free_pages(substream);
943         return 0;
944 }
945 
946 /*
947  *  MIXER part
948  */
949 
950 /* Record source mux routines:
951  * Depending on the chipset this mux switches between 4, 5, or 8 possible inputs.
952  * bit table for the 4/5 source mux:
953  * reg 1C:
954  *  b2 b1 b0   muxSource
955  *   x  0  x   microphone
956  *   0  1  x   CD
957  *   1  1  0   line
958  *   1  1  1   mixer
959  * if it's "mixer" and it's a 5 source mux chipset then reg 7A bit 3 determines
960  * either the play mixer or the capture mixer.
961  *
962  * "map4Source" translates from source number to reg bit pattern
963  * "invMap4Source" translates from reg bit pattern to source number
964  */
965 
966 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
967 {
968         static const char * const texts5Source[5] = {
969                 "Mic", "CD", "Line", "Master", "Mix"
970         };
971         static const char * const texts8Source[8] = {
972                 "Mic", "Mic Master", "CD", "AOUT",
973                 "Mic1", "Mix", "Line", "Master"
974         };
975         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
976 
977         switch (chip->version) {
978         case 0x1868:
979         case 0x1878:
980                 return snd_ctl_enum_info(uinfo, 1, 4, texts5Source);
981         case 0x1887:
982         case 0x1888:
983                 return snd_ctl_enum_info(uinfo, 1, 5, texts5Source);
984         case 0x1869: /* DS somewhat contradictory for 1869: could be be 5 or 8 */
985         case 0x1879:
986                 return snd_ctl_enum_info(uinfo, 1, 8, texts8Source);
987         default:
988                 return -EINVAL;
989         }
990 }
991 
992 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
993 {
994         static unsigned char invMap4Source[8] = {0, 0, 1, 1, 0, 0, 2, 3};
995         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
996         int muxSource = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
997         if (!(chip->version == 0x1869 || chip->version == 0x1879)) {
998                 muxSource = invMap4Source[muxSource];
999                 if (muxSource==3 && 
1000                     (chip->version == 0x1887 || chip->version == 0x1888) &&
1001                     (snd_es18xx_mixer_read(chip, 0x7a) & 0x08)
1002                 ) 
1003                         muxSource = 4;
1004         }
1005         ucontrol->value.enumerated.item[0] = muxSource;
1006         return 0;
1007 }
1008 
1009 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1010 {
1011         static unsigned char map4Source[4] = {0, 2, 6, 7};
1012         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1013         unsigned char val = ucontrol->value.enumerated.item[0];
1014         unsigned char retVal = 0;
1015 
1016         switch (chip->version) {
1017  /* 5 source chips */
1018         case 0x1887:
1019         case 0x1888:
1020                 if (val > 4)
1021                         return -EINVAL;
1022                 if (val == 4) {
1023                         retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x08) != 0x08;
1024                         val = 3;
1025                 } else
1026                         retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x00) != 0x00;
1027  /* 4 source chips */
1028         case 0x1868:
1029         case 0x1878:
1030                 if (val > 3)
1031                         return -EINVAL;
1032                 val = map4Source[val];
1033                 break;
1034  /* 8 source chips */
1035         case 0x1869:
1036         case 0x1879:
1037                 if (val > 7)
1038                         return -EINVAL;
1039                 break;
1040         default:
1041                 return -EINVAL;
1042         }
1043         return (snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val) || retVal;
1044 }
1045 
1046 #define snd_es18xx_info_spatializer_enable      snd_ctl_boolean_mono_info
1047 
1048 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1049 {
1050         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1051         unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
1052         ucontrol->value.integer.value[0] = !!(val & 8);
1053         return 0;
1054 }
1055 
1056 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1057 {
1058         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1059         unsigned char oval, nval;
1060         int change;
1061         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1062         oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
1063         change = nval != oval;
1064         if (change) {
1065                 snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1066                 snd_es18xx_mixer_write(chip, 0x50, nval);
1067         }
1068         return change;
1069 }
1070 
1071 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1072 {
1073         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1074         uinfo->count = 2;
1075         uinfo->value.integer.min = 0;
1076         uinfo->value.integer.max = 63;
1077         return 0;
1078 }
1079 
1080 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1081 {
1082         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1083         ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1084         ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1085         return 0;
1086 }
1087 
1088 #define snd_es18xx_info_hw_switch       snd_ctl_boolean_stereo_info
1089 
1090 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1091 {
1092         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1093         ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1094         ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1095         return 0;
1096 }
1097 
1098 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1099 {
1100         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1101         chip->master_volume = NULL;
1102         chip->master_switch = NULL;
1103         chip->hw_volume = NULL;
1104         chip->hw_switch = NULL;
1105 }
1106 
1107 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1108                                unsigned char mask, unsigned char val)
1109 {
1110         if (reg < 0xa0)
1111                 return snd_es18xx_mixer_bits(chip, reg, mask, val);
1112         else
1113                 return snd_es18xx_bits(chip, reg, mask, val);
1114 }
1115 
1116 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1117 {
1118         if (reg < 0xa0)
1119                 return snd_es18xx_mixer_read(chip, reg);
1120         else
1121                 return snd_es18xx_read(chip, reg);
1122 }
1123 
1124 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, flags) \
1125 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1126   .info = snd_es18xx_info_single, \
1127   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1128   .private_value = reg | (shift << 8) | (mask << 16) | (flags << 24) }
1129 
1130 #define ES18XX_FL_INVERT        (1 << 0)
1131 #define ES18XX_FL_PMPORT        (1 << 1)
1132 
1133 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1134 {
1135         int mask = (kcontrol->private_value >> 16) & 0xff;
1136 
1137         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1138         uinfo->count = 1;
1139         uinfo->value.integer.min = 0;
1140         uinfo->value.integer.max = mask;
1141         return 0;
1142 }
1143 
1144 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1145 {
1146         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1147         int reg = kcontrol->private_value & 0xff;
1148         int shift = (kcontrol->private_value >> 8) & 0xff;
1149         int mask = (kcontrol->private_value >> 16) & 0xff;
1150         int invert = (kcontrol->private_value >> 24) & ES18XX_FL_INVERT;
1151         int pm_port = (kcontrol->private_value >> 24) & ES18XX_FL_PMPORT;
1152         int val;
1153 
1154         if (pm_port)
1155                 val = inb(chip->port + ES18XX_PM);
1156         else
1157                 val = snd_es18xx_reg_read(chip, reg);
1158         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1159         if (invert)
1160                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1161         return 0;
1162 }
1163 
1164 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1165 {
1166         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1167         int reg = kcontrol->private_value & 0xff;
1168         int shift = (kcontrol->private_value >> 8) & 0xff;
1169         int mask = (kcontrol->private_value >> 16) & 0xff;
1170         int invert = (kcontrol->private_value >> 24) & ES18XX_FL_INVERT;
1171         int pm_port = (kcontrol->private_value >> 24) & ES18XX_FL_PMPORT;
1172         unsigned char val;
1173         
1174         val = (ucontrol->value.integer.value[0] & mask);
1175         if (invert)
1176                 val = mask - val;
1177         mask <<= shift;
1178         val <<= shift;
1179         if (pm_port) {
1180                 unsigned char cur = inb(chip->port + ES18XX_PM);
1181 
1182                 if ((cur & mask) == val)
1183                         return 0;
1184                 outb((cur & ~mask) | val, chip->port + ES18XX_PM);
1185                 return 1;
1186         }
1187 
1188         return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1189 }
1190 
1191 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1192 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1193   .info = snd_es18xx_info_double, \
1194   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1195   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1196 
1197 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1198 {
1199         int mask = (kcontrol->private_value >> 24) & 0xff;
1200 
1201         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1202         uinfo->count = 2;
1203         uinfo->value.integer.min = 0;
1204         uinfo->value.integer.max = mask;
1205         return 0;
1206 }
1207 
1208 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1209 {
1210         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1211         int left_reg = kcontrol->private_value & 0xff;
1212         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1213         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1214         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1215         int mask = (kcontrol->private_value >> 24) & 0xff;
1216         int invert = (kcontrol->private_value >> 22) & 1;
1217         unsigned char left, right;
1218         
1219         left = snd_es18xx_reg_read(chip, left_reg);
1220         if (left_reg != right_reg)
1221                 right = snd_es18xx_reg_read(chip, right_reg);
1222         else
1223                 right = left;
1224         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1225         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1226         if (invert) {
1227                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1228                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1229         }
1230         return 0;
1231 }
1232 
1233 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1234 {
1235         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1236         int left_reg = kcontrol->private_value & 0xff;
1237         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1238         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1239         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1240         int mask = (kcontrol->private_value >> 24) & 0xff;
1241         int invert = (kcontrol->private_value >> 22) & 1;
1242         int change;
1243         unsigned char val1, val2, mask1, mask2;
1244         
1245         val1 = ucontrol->value.integer.value[0] & mask;
1246         val2 = ucontrol->value.integer.value[1] & mask;
1247         if (invert) {
1248                 val1 = mask - val1;
1249                 val2 = mask - val2;
1250         }
1251         val1 <<= shift_left;
1252         val2 <<= shift_right;
1253         mask1 = mask << shift_left;
1254         mask2 = mask << shift_right;
1255         if (left_reg != right_reg) {
1256                 change = 0;
1257                 if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1258                         change = 1;
1259                 if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1260                         change = 1;
1261         } else {
1262                 change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2, 
1263                                               val1 | val2) != (val1 | val2));
1264         }
1265         return change;
1266 }
1267 
1268 /* Mixer controls
1269  * These arrays contain setup data for mixer controls.
1270  * 
1271  * The controls that are universal to all chipsets are fully initialized
1272  * here.
1273  */
1274 static struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1275 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1276 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1277 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1278 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1279 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1280 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1281 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1282 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1283 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1284 {
1285         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1286         .name = "Capture Source",
1287         .info = snd_es18xx_info_mux,
1288         .get = snd_es18xx_get_mux,
1289         .put = snd_es18xx_put_mux,
1290 }
1291 };
1292 
1293 static struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1294 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1295 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1296 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1297 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1298 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1299 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1300 };
1301 
1302 /*
1303  * The chipset specific mixer controls
1304  */
1305 static struct snd_kcontrol_new snd_es18xx_opt_speaker =
1306         ES18XX_SINGLE("Beep Playback Volume", 0, 0x3c, 0, 7, 0);
1307 
1308 static struct snd_kcontrol_new snd_es18xx_opt_1869[] = {
1309 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, ES18XX_FL_INVERT),
1310 ES18XX_SINGLE("Video Playback Switch", 0, 0x7f, 0, 1, 0),
1311 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1312 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1313 };
1314 
1315 static struct snd_kcontrol_new snd_es18xx_opt_1878 =
1316         ES18XX_DOUBLE("Video Playback Volume", 0, 0x68, 0x68, 4, 0, 15, 0);
1317 
1318 static struct snd_kcontrol_new snd_es18xx_opt_1879[] = {
1319 ES18XX_SINGLE("Video Playback Switch", 0, 0x71, 6, 1, 0),
1320 ES18XX_DOUBLE("Video Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1321 ES18XX_DOUBLE("Video Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1322 };
1323 
1324 static struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1325 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1326 };
1327 
1328 static struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1329 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1330 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1331 };
1332 
1333 static struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1334 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1335 {
1336         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1337         .name = "3D Control - Switch",
1338         .info = snd_es18xx_info_spatializer_enable,
1339         .get = snd_es18xx_get_spatializer_enable,
1340         .put = snd_es18xx_put_spatializer_enable,
1341 }
1342 };
1343 
1344 static struct snd_kcontrol_new snd_es18xx_micpre1_control = 
1345 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1346 
1347 static struct snd_kcontrol_new snd_es18xx_micpre2_control =
1348 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1349 
1350 static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1351 {
1352         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1353         .name = "Hardware Master Playback Volume",
1354         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1355         .info = snd_es18xx_info_hw_volume,
1356         .get = snd_es18xx_get_hw_volume,
1357 },
1358 {
1359         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1360         .name = "Hardware Master Playback Switch",
1361         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1362         .info = snd_es18xx_info_hw_switch,
1363         .get = snd_es18xx_get_hw_switch,
1364 },
1365 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1366 };
1367 
1368 static struct snd_kcontrol_new snd_es18xx_opt_gpo_2bit[] = {
1369 ES18XX_SINGLE("GPO0 Switch", 0, ES18XX_PM, 0, 1, ES18XX_FL_PMPORT),
1370 ES18XX_SINGLE("GPO1 Switch", 0, ES18XX_PM, 1, 1, ES18XX_FL_PMPORT),
1371 };
1372 
1373 static int snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1374 {
1375         int data;
1376 
1377         outb(reg, chip->ctrl_port);
1378         data = inb(chip->ctrl_port + 1);
1379         return data;
1380 }
1381 
1382 static void snd_es18xx_config_write(struct snd_es18xx *chip,
1383                                     unsigned char reg, unsigned char data)
1384 {
1385         /* No need for spinlocks, this function is used only in
1386            otherwise protected init code */
1387         outb(reg, chip->ctrl_port);
1388         outb(data, chip->ctrl_port + 1);
1389 #ifdef REG_DEBUG
1390         snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1391 #endif
1392 }
1393 
1394 static int snd_es18xx_initialize(struct snd_es18xx *chip,
1395                                  unsigned long mpu_port,
1396                                  unsigned long fm_port)
1397 {
1398         int mask = 0;
1399 
1400         /* enable extended mode */
1401         snd_es18xx_dsp_command(chip, 0xC6);
1402         /* Reset mixer registers */
1403         snd_es18xx_mixer_write(chip, 0x00, 0x00);
1404 
1405         /* Audio 1 DMA demand mode (4 bytes/request) */
1406         snd_es18xx_write(chip, 0xB9, 2);
1407         if (chip->caps & ES18XX_CONTROL) {
1408                 /* Hardware volume IRQ */
1409                 snd_es18xx_config_write(chip, 0x27, chip->irq);
1410                 if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
1411                         /* FM I/O */
1412                         snd_es18xx_config_write(chip, 0x62, fm_port >> 8);
1413                         snd_es18xx_config_write(chip, 0x63, fm_port & 0xff);
1414                 }
1415                 if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1416                         /* MPU-401 I/O */
1417                         snd_es18xx_config_write(chip, 0x64, mpu_port >> 8);
1418                         snd_es18xx_config_write(chip, 0x65, mpu_port & 0xff);
1419                         /* MPU-401 IRQ */
1420                         snd_es18xx_config_write(chip, 0x28, chip->irq);
1421                 }
1422                 /* Audio1 IRQ */
1423                 snd_es18xx_config_write(chip, 0x70, chip->irq);
1424                 /* Audio2 IRQ */
1425                 snd_es18xx_config_write(chip, 0x72, chip->irq);
1426                 /* Audio1 DMA */
1427                 snd_es18xx_config_write(chip, 0x74, chip->dma1);
1428                 /* Audio2 DMA */
1429                 snd_es18xx_config_write(chip, 0x75, chip->dma2);
1430 
1431                 /* Enable Audio 1 IRQ */
1432                 snd_es18xx_write(chip, 0xB1, 0x50);
1433                 /* Enable Audio 2 IRQ */
1434                 snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1435                 /* Enable Audio 1 DMA */
1436                 snd_es18xx_write(chip, 0xB2, 0x50);
1437                 /* Enable MPU and hardware volume interrupt */
1438                 snd_es18xx_mixer_write(chip, 0x64, 0x42);
1439                 /* Enable ESS wavetable input */
1440                 snd_es18xx_mixer_bits(chip, 0x48, 0x10, 0x10);
1441         }
1442         else {
1443                 int irqmask, dma1mask, dma2mask;
1444                 switch (chip->irq) {
1445                 case 2:
1446                 case 9:
1447                         irqmask = 0;
1448                         break;
1449                 case 5:
1450                         irqmask = 1;
1451                         break;
1452                 case 7:
1453                         irqmask = 2;
1454                         break;
1455                 case 10:
1456                         irqmask = 3;
1457                         break;
1458                 default:
1459                         snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1460                         return -ENODEV;
1461                 }
1462                 switch (chip->dma1) {
1463                 case 0:
1464                         dma1mask = 1;
1465                         break;
1466                 case 1:
1467                         dma1mask = 2;
1468                         break;
1469                 case 3:
1470                         dma1mask = 3;
1471                         break;
1472                 default:
1473                         snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1474                         return -ENODEV;
1475                 }
1476                 switch (chip->dma2) {
1477                 case 0:
1478                         dma2mask = 0;
1479                         break;
1480                 case 1:
1481                         dma2mask = 1;
1482                         break;
1483                 case 3:
1484                         dma2mask = 2;
1485                         break;
1486                 case 5:
1487                         dma2mask = 3;
1488                         break;
1489                 default:
1490                         snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1491                         return -ENODEV;
1492                 }
1493 
1494                 /* Enable and set Audio 1 IRQ */
1495                 snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1496                 /* Enable and set Audio 1 DMA */
1497                 snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1498                 /* Set Audio 2 DMA */
1499                 snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1500                 /* Enable Audio 2 IRQ and DMA
1501                    Set capture mixer input */
1502                 snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1503                 /* Enable and set hardware volume interrupt */
1504                 snd_es18xx_mixer_write(chip, 0x64, 0x06);
1505                 if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1506                         /* MPU401 share irq with audio
1507                            Joystick enabled
1508                            FM enabled */
1509                         snd_es18xx_mixer_write(chip, 0x40,
1510                                                0x43 | (mpu_port & 0xf0) >> 1);
1511                 }
1512                 snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1513         }
1514         if (chip->caps & ES18XX_NEW_RATE) {
1515                 /* Change behaviour of register A1
1516                    4x oversampling
1517                    2nd channel DAC asynchronous */
1518                 snd_es18xx_mixer_write(chip, 0x71, 0x32);
1519         }
1520         if (!(chip->caps & ES18XX_PCM2)) {
1521                 /* Enable DMA FIFO */
1522                 snd_es18xx_write(chip, 0xB7, 0x80);
1523         }
1524         if (chip->caps & ES18XX_SPATIALIZER) {
1525                 /* Set spatializer parameters to recommended values */
1526                 snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1527                 snd_es18xx_mixer_write(chip, 0x56, 0x95);
1528                 snd_es18xx_mixer_write(chip, 0x58, 0x94);
1529                 snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1530         }
1531         /* Flip the "enable I2S" bits for those chipsets that need it */
1532         switch (chip->version) {
1533         case 0x1879:
1534                 //Leaving I2S enabled on the 1879 screws up the PCM playback (rate effected somehow)
1535                 //so a Switch control has been added to toggle this 0x71 bit on/off:
1536                 //snd_es18xx_mixer_bits(chip, 0x71, 0x40, 0x40);
1537                 /* Note: we fall through on purpose here. */
1538         case 0x1878:
1539                 snd_es18xx_config_write(chip, 0x29, snd_es18xx_config_read(chip, 0x29) | 0x40);
1540                 break;
1541         }
1542         /* Mute input source */
1543         if (chip->caps & ES18XX_MUTEREC)
1544                 mask = 0x10;
1545         if (chip->caps & ES18XX_RECMIX)
1546                 snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1547         else {
1548                 snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1549                 snd_es18xx_write(chip, 0xb4, 0x00);
1550         }
1551 #ifndef AVOID_POPS
1552         /* Enable PCM output */
1553         snd_es18xx_dsp_command(chip, 0xD1);
1554 #endif
1555 
1556         return 0;
1557 }
1558 
1559 static int snd_es18xx_identify(struct snd_es18xx *chip)
1560 {
1561         int hi,lo;
1562 
1563         /* reset */
1564         if (snd_es18xx_reset(chip) < 0) {
1565                 snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1566                 return -ENODEV;
1567         }
1568 
1569         snd_es18xx_dsp_command(chip, 0xe7);
1570         hi = snd_es18xx_dsp_get_byte(chip);
1571         if (hi < 0) {
1572                 return hi;
1573         }
1574         lo = snd_es18xx_dsp_get_byte(chip);
1575         if ((lo & 0xf0) != 0x80) {
1576                 return -ENODEV;
1577         }
1578         if (hi == 0x48) {
1579                 chip->version = 0x488;
1580                 return 0;
1581         }
1582         if (hi != 0x68) {
1583                 return -ENODEV;
1584         }
1585         if ((lo & 0x0f) < 8) {
1586                 chip->version = 0x688;
1587                 return 0;
1588         }
1589                         
1590         outb(0x40, chip->port + 0x04);
1591         udelay(10);
1592         hi = inb(chip->port + 0x05);
1593         udelay(10);
1594         lo = inb(chip->port + 0x05);
1595         if (hi != lo) {
1596                 chip->version = hi << 8 | lo;
1597                 chip->ctrl_port = inb(chip->port + 0x05) << 8;
1598                 udelay(10);
1599                 chip->ctrl_port += inb(chip->port + 0x05);
1600 
1601                 if ((chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL")) == NULL) {
1602                         snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1603                         return -EBUSY;
1604                 }
1605 
1606                 return 0;
1607         }
1608 
1609         /* If has Hardware volume */
1610         if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1611                 /* If has Audio2 */
1612                 if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1613                         /* If has volume count */
1614                         if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1615                                 chip->version = 0x1887;
1616                         } else {
1617                                 chip->version = 0x1888;
1618                         }
1619                 } else {
1620                         chip->version = 0x1788;
1621                 }
1622         }
1623         else
1624                 chip->version = 0x1688;
1625         return 0;
1626 }
1627 
1628 static int snd_es18xx_probe(struct snd_es18xx *chip,
1629                             unsigned long mpu_port,
1630                             unsigned long fm_port)
1631 {
1632         if (snd_es18xx_identify(chip) < 0) {
1633                 snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1634                 return -ENODEV;
1635         }
1636 
1637         switch (chip->version) {
1638         case 0x1868:
1639                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL | ES18XX_GPO_2BIT;
1640                 break;
1641         case 0x1869:
1642                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV | ES18XX_GPO_2BIT;
1643                 break;
1644         case 0x1878:
1645                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL;
1646                 break;
1647         case 0x1879:
1648                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1649                 break;
1650         case 0x1887:
1651         case 0x1888:
1652                 chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME | ES18XX_GPO_2BIT;
1653                 break;
1654         default:
1655                 snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1656                            chip->port, chip->version);
1657                 return -ENODEV;
1658         }
1659 
1660         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1661 
1662         if (chip->dma1 == chip->dma2)
1663                 chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1664 
1665         return snd_es18xx_initialize(chip, mpu_port, fm_port);
1666 }
1667 
1668 static struct snd_pcm_ops snd_es18xx_playback_ops = {
1669         .open =         snd_es18xx_playback_open,
1670         .close =        snd_es18xx_playback_close,
1671         .ioctl =        snd_pcm_lib_ioctl,
1672         .hw_params =    snd_es18xx_playback_hw_params,
1673         .hw_free =      snd_es18xx_pcm_hw_free,
1674         .prepare =      snd_es18xx_playback_prepare,
1675         .trigger =      snd_es18xx_playback_trigger,
1676         .pointer =      snd_es18xx_playback_pointer,
1677 };
1678 
1679 static struct snd_pcm_ops snd_es18xx_capture_ops = {
1680         .open =         snd_es18xx_capture_open,
1681         .close =        snd_es18xx_capture_close,
1682         .ioctl =        snd_pcm_lib_ioctl,
1683         .hw_params =    snd_es18xx_capture_hw_params,
1684         .hw_free =      snd_es18xx_pcm_hw_free,
1685         .prepare =      snd_es18xx_capture_prepare,
1686         .trigger =      snd_es18xx_capture_trigger,
1687         .pointer =      snd_es18xx_capture_pointer,
1688 };
1689 
1690 static int snd_es18xx_pcm(struct snd_card *card, int device)
1691 {
1692         struct snd_es18xx *chip = card->private_data;
1693         struct snd_pcm *pcm;
1694         char str[16];
1695         int err;
1696 
1697         sprintf(str, "ES%x", chip->version);
1698         if (chip->caps & ES18XX_PCM2)
1699                 err = snd_pcm_new(card, str, device, 2, 1, &pcm);
1700         else
1701                 err = snd_pcm_new(card, str, device, 1, 1, &pcm);
1702         if (err < 0)
1703                 return err;
1704 
1705         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1706         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1707 
1708         /* global setup */
1709         pcm->private_data = chip;
1710         pcm->info_flags = 0;
1711         if (chip->caps & ES18XX_DUPLEX_SAME)
1712                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1713         if (! (chip->caps & ES18XX_PCM2))
1714                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1715         sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1716         chip->pcm = pcm;
1717 
1718         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1719                                               snd_dma_isa_data(),
1720                                               64*1024,
1721                                               chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1722         return 0;
1723 }
1724 
1725 /* Power Management support functions */
1726 #ifdef CONFIG_PM
1727 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1728 {
1729         struct snd_es18xx *chip = card->private_data;
1730 
1731         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1732 
1733         snd_pcm_suspend_all(chip->pcm);
1734 
1735         /* power down */
1736         chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1737         chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1738         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1739         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1740 
1741         return 0;
1742 }
1743 
1744 static int snd_es18xx_resume(struct snd_card *card)
1745 {
1746         struct snd_es18xx *chip = card->private_data;
1747 
1748         /* restore PM register, we won't wake till (not 0x07) i/o activity though */
1749         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1750 
1751         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1752         return 0;
1753 }
1754 #endif /* CONFIG_PM */
1755 
1756 static int snd_es18xx_free(struct snd_card *card)
1757 {
1758         struct snd_es18xx *chip = card->private_data;
1759 
1760         release_and_free_resource(chip->res_port);
1761         release_and_free_resource(chip->res_ctrl_port);
1762         release_and_free_resource(chip->res_mpu_port);
1763         if (chip->irq >= 0)
1764                 free_irq(chip->irq, (void *) card);
1765         if (chip->dma1 >= 0) {
1766                 disable_dma(chip->dma1);
1767                 free_dma(chip->dma1);
1768         }
1769         if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1770                 disable_dma(chip->dma2);
1771                 free_dma(chip->dma2);
1772         }
1773         return 0;
1774 }
1775 
1776 static int snd_es18xx_dev_free(struct snd_device *device)
1777 {
1778         return snd_es18xx_free(device->card);
1779 }
1780 
1781 static int snd_es18xx_new_device(struct snd_card *card,
1782                                  unsigned long port,
1783                                  unsigned long mpu_port,
1784                                  unsigned long fm_port,
1785                                  int irq, int dma1, int dma2)
1786 {
1787         struct snd_es18xx *chip = card->private_data;
1788         static struct snd_device_ops ops = {
1789                 .dev_free =     snd_es18xx_dev_free,
1790         };
1791         int err;
1792 
1793         spin_lock_init(&chip->reg_lock);
1794         spin_lock_init(&chip->mixer_lock);
1795         chip->port = port;
1796         chip->irq = -1;
1797         chip->dma1 = -1;
1798         chip->dma2 = -1;
1799         chip->audio2_vol = 0x00;
1800         chip->active = 0;
1801 
1802         chip->res_port = request_region(port, 16, "ES18xx");
1803         if (chip->res_port == NULL) {
1804                 snd_es18xx_free(card);
1805                 snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1806                 return -EBUSY;
1807         }
1808 
1809         if (request_irq(irq, snd_es18xx_interrupt, 0, "ES18xx",
1810                         (void *) card)) {
1811                 snd_es18xx_free(card);
1812                 snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1813                 return -EBUSY;
1814         }
1815         chip->irq = irq;
1816 
1817         if (request_dma(dma1, "ES18xx DMA 1")) {
1818                 snd_es18xx_free(card);
1819                 snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1820                 return -EBUSY;
1821         }
1822         chip->dma1 = dma1;
1823 
1824         if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1825                 snd_es18xx_free(card);
1826                 snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1827                 return -EBUSY;
1828         }
1829         chip->dma2 = dma2;
1830 
1831         if (snd_es18xx_probe(chip, mpu_port, fm_port) < 0) {
1832                 snd_es18xx_free(card);
1833                 return -ENODEV;
1834         }
1835         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1836         if (err < 0) {
1837                 snd_es18xx_free(card);
1838                 return err;
1839         }
1840         return 0;
1841 }
1842 
1843 static int snd_es18xx_mixer(struct snd_card *card)
1844 {
1845         struct snd_es18xx *chip = card->private_data;
1846         int err;
1847         unsigned int idx;
1848 
1849         strcpy(card->mixername, chip->pcm->name);
1850 
1851         for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1852                 struct snd_kcontrol *kctl;
1853                 kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1854                 if (chip->caps & ES18XX_HWV) {
1855                         switch (idx) {
1856                         case 0:
1857                                 chip->master_volume = kctl;
1858                                 kctl->private_free = snd_es18xx_hwv_free;
1859                                 break;
1860                         case 1:
1861                                 chip->master_switch = kctl;
1862                                 kctl->private_free = snd_es18xx_hwv_free;
1863                                 break;
1864                         }
1865                 }
1866                 if ((err = snd_ctl_add(card, kctl)) < 0)
1867                         return err;
1868         }
1869         if (chip->caps & ES18XX_PCM2) {
1870                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1871                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip))) < 0)
1872                                 return err;
1873                 } 
1874         } else {
1875                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1876                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip))) < 0)
1877                                 return err;
1878                 }
1879         }
1880 
1881         if (chip->caps & ES18XX_RECMIX) {
1882                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1883                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip))) < 0)
1884                                 return err;
1885                 }
1886         }
1887         switch (chip->version) {
1888         default:
1889                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip))) < 0)
1890                         return err;
1891                 break;
1892         case 0x1869:
1893         case 0x1879:
1894                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip))) < 0)
1895                         return err;
1896                 break;
1897         }
1898         if (chip->caps & ES18XX_SPATIALIZER) {
1899                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1900                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip))) < 0)
1901                                 return err;
1902                 }
1903         }
1904         if (chip->caps & ES18XX_HWV) {
1905                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1906                         struct snd_kcontrol *kctl;
1907                         kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1908                         if (idx == 0)
1909                                 chip->hw_volume = kctl;
1910                         else
1911                                 chip->hw_switch = kctl;
1912                         kctl->private_free = snd_es18xx_hwv_free;
1913                         if ((err = snd_ctl_add(card, kctl)) < 0)
1914                                 return err;
1915                         
1916                 }
1917         }
1918         /* finish initializing other chipset specific controls
1919          */
1920         if (chip->version != 0x1868) {
1921                 err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_speaker,
1922                                                      chip));
1923                 if (err < 0)
1924                         return err;
1925         }
1926         if (chip->version == 0x1869) {
1927                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1869); idx++) {
1928                         err = snd_ctl_add(card,
1929                                           snd_ctl_new1(&snd_es18xx_opt_1869[idx],
1930                                                        chip));
1931                         if (err < 0)
1932                                 return err;
1933                 }
1934         } else if (chip->version == 0x1878) {
1935                 err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_1878,
1936                                                      chip));
1937                 if (err < 0)
1938                         return err;
1939         } else if (chip->version == 0x1879) {
1940                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1879); idx++) {
1941                         err = snd_ctl_add(card,
1942                                           snd_ctl_new1(&snd_es18xx_opt_1879[idx],
1943                                                        chip));
1944                         if (err < 0)
1945                                 return err;
1946                 }
1947         }
1948         if (chip->caps & ES18XX_GPO_2BIT) {
1949                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_gpo_2bit); idx++) {
1950                         err = snd_ctl_add(card,
1951                                           snd_ctl_new1(&snd_es18xx_opt_gpo_2bit[idx],
1952                                                        chip));
1953                         if (err < 0)
1954                                 return err;
1955                 }
1956         }
1957         return 0;
1958 }
1959        
1960 
1961 /* Card level */
1962 
1963 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");  
1964 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1965 MODULE_LICENSE("GPL");
1966 MODULE_SUPPORTED_DEVICE("{{ESS,ES1868 PnP AudioDrive},"
1967                 "{ESS,ES1869 PnP AudioDrive},"
1968                 "{ESS,ES1878 PnP AudioDrive},"
1969                 "{ESS,ES1879 PnP AudioDrive},"
1970                 "{ESS,ES1887 PnP AudioDrive},"
1971                 "{ESS,ES1888 PnP AudioDrive},"
1972                 "{ESS,ES1887 AudioDrive},"
1973                 "{ESS,ES1888 AudioDrive}}");
1974 
1975 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
1976 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
1977 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1978 #ifdef CONFIG_PNP
1979 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
1980 #endif
1981 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260,0x280 */
1982 #ifndef CONFIG_PNP
1983 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
1984 #else
1985 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1986 #endif
1987 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1988 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
1989 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1990 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1991 
1992 module_param_array(index, int, NULL, 0444);
1993 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
1994 module_param_array(id, charp, NULL, 0444);
1995 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
1996 module_param_array(enable, bool, NULL, 0444);
1997 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
1998 #ifdef CONFIG_PNP
1999 module_param_array(isapnp, bool, NULL, 0444);
2000 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
2001 #endif
2002 module_param_array(port, long, NULL, 0444);
2003 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
2004 module_param_array(mpu_port, long, NULL, 0444);
2005 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
2006 module_param_array(fm_port, long, NULL, 0444);
2007 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
2008 module_param_array(irq, int, NULL, 0444);
2009 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
2010 module_param_array(dma1, int, NULL, 0444);
2011 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
2012 module_param_array(dma2, int, NULL, 0444);
2013 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
2014 
2015 #ifdef CONFIG_PNP
2016 static int isa_registered;
2017 static int pnp_registered;
2018 static int pnpc_registered;
2019 
2020 static struct pnp_device_id snd_audiodrive_pnpbiosids[] = {
2021         { .id = "ESS1869" },
2022         { .id = "ESS1879" },
2023         { .id = "" }            /* end */
2024 };
2025 
2026 MODULE_DEVICE_TABLE(pnp, snd_audiodrive_pnpbiosids);
2027 
2028 /* PnP main device initialization */
2029 static int snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
2030 {
2031         if (pnp_activate_dev(pdev) < 0) {
2032                 snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
2033                 return -EBUSY;
2034         }
2035         /* ok. hack using Vendor-Defined Card-Level registers */
2036         /* skip csn and logdev initialization - already done in isapnp_configure */
2037         if (pnp_device_is_isapnp(pdev)) {
2038                 isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
2039                 isapnp_write_byte(0x27, pnp_irq(pdev, 0));      /* Hardware Volume IRQ Number */
2040                 if (mpu_port[dev] != SNDRV_AUTO_PORT)
2041                         isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
2042                 isapnp_write_byte(0x72, pnp_irq(pdev, 0));      /* second IRQ */
2043                 isapnp_cfg_end();
2044         }
2045         port[dev] = pnp_port_start(pdev, 0);
2046         fm_port[dev] = pnp_port_start(pdev, 1);
2047         mpu_port[dev] = pnp_port_start(pdev, 2);
2048         dma1[dev] = pnp_dma(pdev, 0);
2049         dma2[dev] = pnp_dma(pdev, 1);
2050         irq[dev] = pnp_irq(pdev, 0);
2051         snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
2052         snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
2053         return 0;
2054 }
2055 
2056 static int snd_audiodrive_pnp(int dev, struct snd_es18xx *chip,
2057                               struct pnp_dev *pdev)
2058 {
2059         chip->dev = pdev;
2060         if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2061                 return -EBUSY;
2062         return 0;
2063 }
2064 
2065 static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
2066         /* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
2067         { .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
2068         /* ESS 1868 (integrated on Maxisound Cards) */
2069         { .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
2070         /* ESS 1868 (integrated on Maxisound Cards) */
2071         { .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
2072         /* ESS ES1869 Plug and Play AudioDrive */
2073         { .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
2074         /* ESS 1869 */
2075         { .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
2076         /* ESS 1878 */
2077         { .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
2078         /* ESS 1879 */
2079         { .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
2080         /* --- */
2081         { .id = "" } /* end */
2082 };
2083 
2084 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
2085 
2086 static int snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip,
2087                                struct pnp_card_link *card,
2088                                const struct pnp_card_device_id *id)
2089 {
2090         chip->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
2091         if (chip->dev == NULL)
2092                 return -EBUSY;
2093 
2094         chip->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
2095         if (chip->devc == NULL)
2096                 return -EBUSY;
2097 
2098         /* Control port initialization */
2099         if (pnp_activate_dev(chip->devc) < 0) {
2100                 snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
2101                 return -EAGAIN;
2102         }
2103         snd_printdd("pnp: port=0x%llx\n",
2104                         (unsigned long long)pnp_port_start(chip->devc, 0));
2105         if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2106                 return -EBUSY;
2107 
2108         return 0;
2109 }
2110 #endif /* CONFIG_PNP */
2111 
2112 #ifdef CONFIG_PNP
2113 #define is_isapnp_selected(dev)         isapnp[dev]
2114 #else
2115 #define is_isapnp_selected(dev)         0
2116 #endif
2117 
2118 static int snd_es18xx_card_new(struct device *pdev, int dev,
2119                                struct snd_card **cardp)
2120 {
2121         return snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
2122                             sizeof(struct snd_es18xx), cardp);
2123 }
2124 
2125 static int snd_audiodrive_probe(struct snd_card *card, int dev)
2126 {
2127         struct snd_es18xx *chip = card->private_data;
2128         struct snd_opl3 *opl3;
2129         int err;
2130 
2131         err = snd_es18xx_new_device(card,
2132                                     port[dev], mpu_port[dev], fm_port[dev],
2133                                     irq[dev], dma1[dev], dma2[dev]);
2134         if (err < 0)
2135                 return err;
2136 
2137         sprintf(card->driver, "ES%x", chip->version);
2138         
2139         sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2140         if (dma1[dev] != dma2[dev])
2141                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2142                         card->shortname,
2143                         chip->port,
2144                         irq[dev], dma1[dev], dma2[dev]);
2145         else
2146                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2147                         card->shortname,
2148                         chip->port,
2149                         irq[dev], dma1[dev]);
2150 
2151         err = snd_es18xx_pcm(card, 0);
2152         if (err < 0)
2153                 return err;
2154 
2155         err = snd_es18xx_mixer(card);
2156         if (err < 0)
2157                 return err;
2158 
2159         if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2160                 if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
2161                                     OPL3_HW_OPL3, 0, &opl3) < 0) {
2162                         snd_printk(KERN_WARNING PFX
2163                                    "opl3 not detected at 0x%lx\n",
2164                                    fm_port[dev]);
2165                 } else {
2166                         err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
2167                         if (err < 0)
2168                                 return err;
2169                 }
2170         }
2171 
2172         if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2173                 err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2174                                           mpu_port[dev], MPU401_INFO_IRQ_HOOK,
2175                                           -1, &chip->rmidi);
2176                 if (err < 0)
2177                         return err;
2178         }
2179 
2180         return snd_card_register(card);
2181 }
2182 
2183 static int snd_es18xx_isa_match(struct device *pdev, unsigned int dev)
2184 {
2185         return enable[dev] && !is_isapnp_selected(dev);
2186 }
2187 
2188 static int snd_es18xx_isa_probe1(int dev, struct device *devptr)
2189 {
2190         struct snd_card *card;
2191         int err;
2192 
2193         err = snd_es18xx_card_new(devptr, dev, &card);
2194         if (err < 0)
2195                 return err;
2196         if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2197                 snd_card_free(card);
2198                 return err;
2199         }
2200         dev_set_drvdata(devptr, card);
2201         return 0;
2202 }
2203 
2204 static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
2205 {
2206         int err;
2207         static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2208         static int possible_dmas[] = {1, 0, 3, 5, -1};
2209 
2210         if (irq[dev] == SNDRV_AUTO_IRQ) {
2211                 if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
2212                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2213                         return -EBUSY;
2214                 }
2215         }
2216         if (dma1[dev] == SNDRV_AUTO_DMA) {
2217                 if ((dma1[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2218                         snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2219                         return -EBUSY;
2220                 }
2221         }
2222         if (dma2[dev] == SNDRV_AUTO_DMA) {
2223                 if ((dma2[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2224                         snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2225                         return -EBUSY;
2226                 }
2227         }
2228 
2229         if (port[dev] != SNDRV_AUTO_PORT) {
2230                 return snd_es18xx_isa_probe1(dev, pdev);
2231         } else {
2232                 static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2233                 int i;
2234                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2235                         port[dev] = possible_ports[i];
2236                         err = snd_es18xx_isa_probe1(dev, pdev);
2237                         if (! err)
2238                                 return 0;
2239                 }
2240                 return err;
2241         }
2242 }
2243 
2244 static int snd_es18xx_isa_remove(struct device *devptr,
2245                                  unsigned int dev)
2246 {
2247         snd_card_free(dev_get_drvdata(devptr));
2248         return 0;
2249 }
2250 
2251 #ifdef CONFIG_PM
2252 static int snd_es18xx_isa_suspend(struct device *dev, unsigned int n,
2253                                   pm_message_t state)
2254 {
2255         return snd_es18xx_suspend(dev_get_drvdata(dev), state);
2256 }
2257 
2258 static int snd_es18xx_isa_resume(struct device *dev, unsigned int n)
2259 {
2260         return snd_es18xx_resume(dev_get_drvdata(dev));
2261 }
2262 #endif
2263 
2264 #define DEV_NAME "es18xx"
2265 
2266 static struct isa_driver snd_es18xx_isa_driver = {
2267         .match          = snd_es18xx_isa_match,
2268         .probe          = snd_es18xx_isa_probe,
2269         .remove         = snd_es18xx_isa_remove,
2270 #ifdef CONFIG_PM
2271         .suspend        = snd_es18xx_isa_suspend,
2272         .resume         = snd_es18xx_isa_resume,
2273 #endif
2274         .driver         = {
2275                 .name   = DEV_NAME
2276         },
2277 };
2278 
2279 
2280 #ifdef CONFIG_PNP
2281 static int snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
2282                                      const struct pnp_device_id *id)
2283 {
2284         static int dev;
2285         int err;
2286         struct snd_card *card;
2287 
2288         if (pnp_device_is_isapnp(pdev))
2289                 return -ENOENT; /* we have another procedure - card */
2290         for (; dev < SNDRV_CARDS; dev++) {
2291                 if (enable[dev] && isapnp[dev])
2292                         break;
2293         }
2294         if (dev >= SNDRV_CARDS)
2295                 return -ENODEV;
2296 
2297         err = snd_es18xx_card_new(&pdev->dev, dev, &card);
2298         if (err < 0)
2299                 return err;
2300         if ((err = snd_audiodrive_pnp(dev, card->private_data, pdev)) < 0) {
2301                 snd_card_free(card);
2302                 return err;
2303         }
2304         if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2305                 snd_card_free(card);
2306                 return err;
2307         }
2308         pnp_set_drvdata(pdev, card);
2309         dev++;
2310         return 0;
2311 }
2312 
2313 static void snd_audiodrive_pnp_remove(struct pnp_dev *pdev)
2314 {
2315         snd_card_free(pnp_get_drvdata(pdev));
2316 }
2317 
2318 #ifdef CONFIG_PM
2319 static int snd_audiodrive_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
2320 {
2321         return snd_es18xx_suspend(pnp_get_drvdata(pdev), state);
2322 }
2323 static int snd_audiodrive_pnp_resume(struct pnp_dev *pdev)
2324 {
2325         return snd_es18xx_resume(pnp_get_drvdata(pdev));
2326 }
2327 #endif
2328 
2329 static struct pnp_driver es18xx_pnp_driver = {
2330         .name = "es18xx-pnpbios",
2331         .id_table = snd_audiodrive_pnpbiosids,
2332         .probe = snd_audiodrive_pnp_detect,
2333         .remove = snd_audiodrive_pnp_remove,
2334 #ifdef CONFIG_PM
2335         .suspend = snd_audiodrive_pnp_suspend,
2336         .resume = snd_audiodrive_pnp_resume,
2337 #endif
2338 };
2339 
2340 static int snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
2341                                       const struct pnp_card_device_id *pid)
2342 {
2343         static int dev;
2344         struct snd_card *card;
2345         int res;
2346 
2347         for ( ; dev < SNDRV_CARDS; dev++) {
2348                 if (enable[dev] && isapnp[dev])
2349                         break;
2350         }
2351         if (dev >= SNDRV_CARDS)
2352                 return -ENODEV;
2353 
2354         res = snd_es18xx_card_new(&pcard->card->dev, dev, &card);
2355         if (res < 0)
2356                 return res;
2357 
2358         if ((res = snd_audiodrive_pnpc(dev, card->private_data, pcard, pid)) < 0) {
2359                 snd_card_free(card);
2360                 return res;
2361         }
2362         if ((res = snd_audiodrive_probe(card, dev)) < 0) {
2363                 snd_card_free(card);
2364                 return res;
2365         }
2366 
2367         pnp_set_card_drvdata(pcard, card);
2368         dev++;
2369         return 0;
2370 }
2371 
2372 static void snd_audiodrive_pnpc_remove(struct pnp_card_link *pcard)
2373 {
2374         snd_card_free(pnp_get_card_drvdata(pcard));
2375         pnp_set_card_drvdata(pcard, NULL);
2376 }
2377 
2378 #ifdef CONFIG_PM
2379 static int snd_audiodrive_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state)
2380 {
2381         return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2382 }
2383 
2384 static int snd_audiodrive_pnpc_resume(struct pnp_card_link *pcard)
2385 {
2386         return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2387 }
2388 
2389 #endif
2390 
2391 static struct pnp_card_driver es18xx_pnpc_driver = {
2392         .flags = PNP_DRIVER_RES_DISABLE,
2393         .name = "es18xx",
2394         .id_table = snd_audiodrive_pnpids,
2395         .probe = snd_audiodrive_pnpc_detect,
2396         .remove = snd_audiodrive_pnpc_remove,
2397 #ifdef CONFIG_PM
2398         .suspend        = snd_audiodrive_pnpc_suspend,
2399         .resume         = snd_audiodrive_pnpc_resume,
2400 #endif
2401 };
2402 #endif /* CONFIG_PNP */
2403 
2404 static int __init alsa_card_es18xx_init(void)
2405 {
2406         int err;
2407 
2408         err = isa_register_driver(&snd_es18xx_isa_driver, SNDRV_CARDS);
2409 #ifdef CONFIG_PNP
2410         if (!err)
2411                 isa_registered = 1;
2412 
2413         err = pnp_register_driver(&es18xx_pnp_driver);
2414         if (!err)
2415                 pnp_registered = 1;
2416 
2417         err = pnp_register_card_driver(&es18xx_pnpc_driver);
2418         if (!err)
2419                 pnpc_registered = 1;
2420 
2421         if (isa_registered || pnp_registered)
2422                 err = 0;
2423 #endif
2424         return err;
2425 }
2426 
2427 static void __exit alsa_card_es18xx_exit(void)
2428 {
2429 #ifdef CONFIG_PNP
2430         if (pnpc_registered)
2431                 pnp_unregister_card_driver(&es18xx_pnpc_driver);
2432         if (pnp_registered)
2433                 pnp_unregister_driver(&es18xx_pnp_driver);
2434         if (isa_registered)
2435 #endif
2436                 isa_unregister_driver(&snd_es18xx_isa_driver);
2437 }
2438 
2439 module_init(alsa_card_es18xx_init)
2440 module_exit(alsa_card_es18xx_exit)
2441 

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