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Linux/sound/isa/es18xx.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *  Driver for generic ESS AudioDrive ES18xx soundcards
  4  *  Copyright (c) by Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>
  5  *  Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
  6  */
  7 /* GENERAL NOTES:
  8  *
  9  * BUGS:
 10  * - There are pops (we can't delay in trigger function, cause midlevel 
 11  *   often need to trigger down and then up very quickly).
 12  *   Any ideas?
 13  * - Support for 16 bit DMA seems to be broken. I've no hardware to tune it.
 14  */
 15 
 16 /*
 17  * ES1868  NOTES:
 18  * - The chip has one half duplex pcm (with very limited full duplex support).
 19  *
 20  * - Duplex stereophonic sound is impossible.
 21  * - Record and playback must share the same frequency rate.
 22  *
 23  * - The driver use dma2 for playback and dma1 for capture.
 24  */
 25 
 26 /*
 27  * ES1869 NOTES:
 28  *
 29  * - there are a first full duplex pcm and a second playback only pcm
 30  *   (incompatible with first pcm capture)
 31  * 
 32  * - there is support for the capture volume and ESS Spatializer 3D effect.
 33  *
 34  * - contrarily to some pages in DS_1869.PDF the rates can be set
 35  *   independently.
 36  *
 37  * - Zoom Video is implemented by sharing the FM DAC, thus the user can
 38  *   have either FM playback or Video playback but not both simultaneously.
 39  *   The Video Playback Switch mixer control toggles this choice.
 40  *
 41  * BUGS:
 42  *
 43  * - There is a major trouble I noted:
 44  *
 45  *   using both channel for playback stereo 16 bit samples at 44100 Hz
 46  *   the second pcm (Audio1) DMA slows down irregularly and sound is garbled.
 47  *   
 48  *   The same happens using Audio1 for captureing.
 49  *
 50  *   The Windows driver does not suffer of this (although it use Audio1
 51  *   only for captureing). I'm unable to discover why.
 52  *
 53  */
 54 
 55 /*
 56  * ES1879 NOTES:
 57  * - When Zoom Video is enabled (reg 0x71 bit 6 toggled on) the PCM playback
 58  *   seems to be effected (speaker_test plays a lower frequency). Can't find
 59  *   anything in the datasheet to account for this, so a Video Playback Switch
 60  *   control has been included to allow ZV to be enabled only when necessary.
 61  *   Then again on at least one test system the 0x71 bit 6 enable bit is not 
 62  *   needed for ZV, so maybe the datasheet is entirely wrong here.
 63  */
 64  
 65 #include <linux/init.h>
 66 #include <linux/err.h>
 67 #include <linux/isa.h>
 68 #include <linux/pnp.h>
 69 #include <linux/isapnp.h>
 70 #include <linux/module.h>
 71 #include <linux/delay.h>
 72 #include <linux/io.h>
 73 
 74 #include <asm/dma.h>
 75 #include <sound/core.h>
 76 #include <sound/control.h>
 77 #include <sound/pcm.h>
 78 #include <sound/pcm_params.h>
 79 #include <sound/mpu401.h>
 80 #include <sound/opl3.h>
 81 #define SNDRV_LEGACY_FIND_FREE_IRQ
 82 #define SNDRV_LEGACY_FIND_FREE_DMA
 83 #include <sound/initval.h>
 84 
 85 #define PFX "es18xx: "
 86 
 87 struct snd_es18xx {
 88         unsigned long port;             /* port of ESS chip */
 89         unsigned long ctrl_port;        /* Control port of ESS chip */
 90         struct resource *res_port;
 91         struct resource *res_mpu_port;
 92         struct resource *res_ctrl_port;
 93         int irq;                        /* IRQ number of ESS chip */
 94         int dma1;                       /* DMA1 */
 95         int dma2;                       /* DMA2 */
 96         unsigned short version;         /* version of ESS chip */
 97         int caps;                       /* Chip capabilities */
 98         unsigned short audio2_vol;      /* volume level of audio2 */
 99 
100         unsigned short active;          /* active channel mask */
101         unsigned int dma1_shift;
102         unsigned int dma2_shift;
103 
104         struct snd_pcm *pcm;
105         struct snd_pcm_substream *playback_a_substream;
106         struct snd_pcm_substream *capture_a_substream;
107         struct snd_pcm_substream *playback_b_substream;
108 
109         struct snd_rawmidi *rmidi;
110 
111         struct snd_kcontrol *hw_volume;
112         struct snd_kcontrol *hw_switch;
113         struct snd_kcontrol *master_volume;
114         struct snd_kcontrol *master_switch;
115 
116         spinlock_t reg_lock;
117         spinlock_t mixer_lock;
118 #ifdef CONFIG_PM
119         unsigned char pm_reg;
120 #endif
121 #ifdef CONFIG_PNP
122         struct pnp_dev *dev;
123         struct pnp_dev *devc;
124 #endif
125 };
126 
127 #define AUDIO1_IRQ      0x01
128 #define AUDIO2_IRQ      0x02
129 #define HWV_IRQ         0x04
130 #define MPU_IRQ         0x08
131 
132 #define ES18XX_PCM2     0x0001  /* Has two useable PCM */
133 #define ES18XX_SPATIALIZER 0x0002       /* Has 3D Spatializer */
134 #define ES18XX_RECMIX   0x0004  /* Has record mixer */
135 #define ES18XX_DUPLEX_MONO 0x0008       /* Has mono duplex only */
136 #define ES18XX_DUPLEX_SAME 0x0010       /* Playback and record must share the same rate */
137 #define ES18XX_NEW_RATE 0x0020  /* More precise rate setting */
138 #define ES18XX_AUXB     0x0040  /* AuxB mixer control */
139 #define ES18XX_HWV      0x0080  /* Has separate hardware volume mixer controls*/
140 #define ES18XX_MONO     0x0100  /* Mono_in mixer control */
141 #define ES18XX_I2S      0x0200  /* I2S mixer control */
142 #define ES18XX_MUTEREC  0x0400  /* Record source can be muted */
143 #define ES18XX_CONTROL  0x0800  /* Has control ports */
144 #define ES18XX_GPO_2BIT 0x1000  /* GPO0,1 controlled by PM port */
145 
146 /* Power Management */
147 #define ES18XX_PM       0x07
148 #define ES18XX_PM_GPO0  0x01
149 #define ES18XX_PM_GPO1  0x02
150 #define ES18XX_PM_PDR   0x04
151 #define ES18XX_PM_ANA   0x08
152 #define ES18XX_PM_FM    0x020
153 #define ES18XX_PM_SUS   0x080
154 
155 /* Lowlevel */
156 
157 #define DAC1 0x01
158 #define ADC1 0x02
159 #define DAC2 0x04
160 #define MILLISECOND 10000
161 
162 static int snd_es18xx_dsp_command(struct snd_es18xx *chip, unsigned char val)
163 {
164         int i;
165 
166         for(i = MILLISECOND; i; i--)
167                 if ((inb(chip->port + 0x0C) & 0x80) == 0) {
168                         outb(val, chip->port + 0x0C);
169                         return 0;
170                 }
171         snd_printk(KERN_ERR "dsp_command: timeout (0x%x)\n", val);
172         return -EINVAL;
173 }
174 
175 static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
176 {
177         int i;
178 
179         for(i = MILLISECOND/10; i; i--)
180                 if (inb(chip->port + 0x0C) & 0x40)
181                         return inb(chip->port + 0x0A);
182         snd_printk(KERN_ERR "dsp_get_byte failed: 0x%lx = 0x%x!!!\n",
183                    chip->port + 0x0A, inb(chip->port + 0x0A));
184         return -ENODEV;
185 }
186 
187 #undef REG_DEBUG
188 
189 static int snd_es18xx_write(struct snd_es18xx *chip,
190                             unsigned char reg, unsigned char data)
191 {
192         unsigned long flags;
193         int ret;
194         
195         spin_lock_irqsave(&chip->reg_lock, flags);
196         ret = snd_es18xx_dsp_command(chip, reg);
197         if (ret < 0)
198                 goto end;
199         ret = snd_es18xx_dsp_command(chip, data);
200  end:
201         spin_unlock_irqrestore(&chip->reg_lock, flags);
202 #ifdef REG_DEBUG
203         snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, data);
204 #endif
205         return ret;
206 }
207 
208 static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
209 {
210         unsigned long flags;
211         int ret, data;
212         spin_lock_irqsave(&chip->reg_lock, flags);
213         ret = snd_es18xx_dsp_command(chip, 0xC0);
214         if (ret < 0)
215                 goto end;
216         ret = snd_es18xx_dsp_command(chip, reg);
217         if (ret < 0)
218                 goto end;
219         data = snd_es18xx_dsp_get_byte(chip);
220         ret = data;
221 #ifdef REG_DEBUG
222         snd_printk(KERN_DEBUG "Reg %02x now is %02x (%d)\n", reg, data, ret);
223 #endif
224  end:
225         spin_unlock_irqrestore(&chip->reg_lock, flags);
226         return ret;
227 }
228 
229 /* Return old value */
230 static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
231                            unsigned char mask, unsigned char val)
232 {
233         int ret;
234         unsigned char old, new, oval;
235         unsigned long flags;
236         spin_lock_irqsave(&chip->reg_lock, flags);
237         ret = snd_es18xx_dsp_command(chip, 0xC0);
238         if (ret < 0)
239                 goto end;
240         ret = snd_es18xx_dsp_command(chip, reg);
241         if (ret < 0)
242                 goto end;
243         ret = snd_es18xx_dsp_get_byte(chip);
244         if (ret < 0) {
245                 goto end;
246         }
247         old = ret;
248         oval = old & mask;
249         if (val != oval) {
250                 ret = snd_es18xx_dsp_command(chip, reg);
251                 if (ret < 0)
252                         goto end;
253                 new = (old & ~mask) | (val & mask);
254                 ret = snd_es18xx_dsp_command(chip, new);
255                 if (ret < 0)
256                         goto end;
257 #ifdef REG_DEBUG
258                 snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x (%d)\n",
259                            reg, old, new, ret);
260 #endif
261         }
262         ret = oval;
263  end:
264         spin_unlock_irqrestore(&chip->reg_lock, flags);
265         return ret;
266 }
267 
268 static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
269                             unsigned char reg, unsigned char data)
270 {
271         unsigned long flags;
272         spin_lock_irqsave(&chip->mixer_lock, flags);
273         outb(reg, chip->port + 0x04);
274         outb(data, chip->port + 0x05);
275         spin_unlock_irqrestore(&chip->mixer_lock, flags);
276 #ifdef REG_DEBUG
277         snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, data);
278 #endif
279 }
280 
281 static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
282 {
283         unsigned long flags;
284         int data;
285         spin_lock_irqsave(&chip->mixer_lock, flags);
286         outb(reg, chip->port + 0x04);
287         data = inb(chip->port + 0x05);
288         spin_unlock_irqrestore(&chip->mixer_lock, flags);
289 #ifdef REG_DEBUG
290         snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
291 #endif
292         return data;
293 }
294 
295 /* Return old value */
296 static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char reg,
297                                         unsigned char mask, unsigned char val)
298 {
299         unsigned char old, new, oval;
300         unsigned long flags;
301         spin_lock_irqsave(&chip->mixer_lock, flags);
302         outb(reg, chip->port + 0x04);
303         old = inb(chip->port + 0x05);
304         oval = old & mask;
305         if (val != oval) {
306                 new = (old & ~mask) | (val & mask);
307                 outb(new, chip->port + 0x05);
308 #ifdef REG_DEBUG
309                 snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
310                            reg, old, new);
311 #endif
312         }
313         spin_unlock_irqrestore(&chip->mixer_lock, flags);
314         return oval;
315 }
316 
317 static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned char reg,
318                                             unsigned char mask)
319 {
320         int old, expected, new;
321         unsigned long flags;
322         spin_lock_irqsave(&chip->mixer_lock, flags);
323         outb(reg, chip->port + 0x04);
324         old = inb(chip->port + 0x05);
325         expected = old ^ mask;
326         outb(expected, chip->port + 0x05);
327         new = inb(chip->port + 0x05);
328         spin_unlock_irqrestore(&chip->mixer_lock, flags);
329 #ifdef REG_DEBUG
330         snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
331                    reg, old, expected, new);
332 #endif
333         return expected == new;
334 }
335 
336 
337 static int snd_es18xx_reset(struct snd_es18xx *chip)
338 {
339         int i;
340         outb(0x03, chip->port + 0x06);
341         inb(chip->port + 0x06);
342         outb(0x00, chip->port + 0x06);
343         for(i = 0; i < MILLISECOND && !(inb(chip->port + 0x0E) & 0x80); i++);
344         if (inb(chip->port + 0x0A) != 0xAA)
345                 return -1;
346         return 0;
347 }
348 
349 static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
350 {
351         outb(0x02, chip->port + 0x06);
352         inb(chip->port + 0x06);
353         outb(0x00, chip->port + 0x06);
354         return 0;
355 }
356 
357 static const struct snd_ratnum new_clocks[2] = {
358         {
359                 .num = 793800,
360                 .den_min = 1,
361                 .den_max = 128,
362                 .den_step = 1,
363         },
364         {
365                 .num = 768000,
366                 .den_min = 1,
367                 .den_max = 128,
368                 .den_step = 1,
369         }
370 };
371 
372 static const struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
373         .nrats = 2,
374         .rats = new_clocks,
375 };
376 
377 static const struct snd_ratnum old_clocks[2] = {
378         {
379                 .num = 795444,
380                 .den_min = 1,
381                 .den_max = 128,
382                 .den_step = 1,
383         },
384         {
385                 .num = 397722,
386                 .den_min = 1,
387                 .den_max = 128,
388                 .den_step = 1,
389         }
390 };
391 
392 static const struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
393         .nrats = 2,
394         .rats = old_clocks,
395 };
396 
397 
398 static void snd_es18xx_rate_set(struct snd_es18xx *chip, 
399                                 struct snd_pcm_substream *substream,
400                                 int mode)
401 {
402         unsigned int bits, div0;
403         struct snd_pcm_runtime *runtime = substream->runtime;
404         if (chip->caps & ES18XX_NEW_RATE) {
405                 if (runtime->rate_num == new_clocks[0].num)
406                         bits = 128 - runtime->rate_den;
407                 else
408                         bits = 256 - runtime->rate_den;
409         } else {
410                 if (runtime->rate_num == old_clocks[0].num)
411                         bits = 256 - runtime->rate_den;
412                 else
413                         bits = 128 - runtime->rate_den;
414         }
415 
416         /* set filter register */
417         div0 = 256 - 7160000*20/(8*82*runtime->rate);
418                 
419         if ((chip->caps & ES18XX_PCM2) && mode == DAC2) {
420                 snd_es18xx_mixer_write(chip, 0x70, bits);
421                 /*
422                  * Comment from kernel oss driver:
423                  * FKS: fascinating: 0x72 doesn't seem to work.
424                  */
425                 snd_es18xx_write(chip, 0xA2, div0);
426                 snd_es18xx_mixer_write(chip, 0x72, div0);
427         } else {
428                 snd_es18xx_write(chip, 0xA1, bits);
429                 snd_es18xx_write(chip, 0xA2, div0);
430         }
431 }
432 
433 static int snd_es18xx_playback_hw_params(struct snd_pcm_substream *substream,
434                                          struct snd_pcm_hw_params *hw_params)
435 {
436         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
437         int shift, err;
438 
439         shift = 0;
440         if (params_channels(hw_params) == 2)
441                 shift++;
442         if (snd_pcm_format_width(params_format(hw_params)) == 16)
443                 shift++;
444 
445         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
446                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
447                     (chip->capture_a_substream) &&
448                     params_channels(hw_params) != 1) {
449                         _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
450                         return -EBUSY;
451                 }
452                 chip->dma2_shift = shift;
453         } else {
454                 chip->dma1_shift = shift;
455         }
456         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
457                 return err;
458         return 0;
459 }
460 
461 static int snd_es18xx_pcm_hw_free(struct snd_pcm_substream *substream)
462 {
463         return snd_pcm_lib_free_pages(substream);
464 }
465 
466 static int snd_es18xx_playback1_prepare(struct snd_es18xx *chip,
467                                         struct snd_pcm_substream *substream)
468 {
469         struct snd_pcm_runtime *runtime = substream->runtime;
470         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
471         unsigned int count = snd_pcm_lib_period_bytes(substream);
472 
473         snd_es18xx_rate_set(chip, substream, DAC2);
474 
475         /* Transfer Count Reload */
476         count = 0x10000 - count;
477         snd_es18xx_mixer_write(chip, 0x74, count & 0xff);
478         snd_es18xx_mixer_write(chip, 0x76, count >> 8);
479 
480         /* Set format */
481         snd_es18xx_mixer_bits(chip, 0x7A, 0x07,
482                               ((runtime->channels == 1) ? 0x00 : 0x02) |
483                               (snd_pcm_format_width(runtime->format) == 16 ? 0x01 : 0x00) |
484                               (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x04));
485 
486         /* Set DMA controller */
487         snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
488 
489         return 0;
490 }
491 
492 static int snd_es18xx_playback1_trigger(struct snd_es18xx *chip,
493                                         struct snd_pcm_substream *substream,
494                                         int cmd)
495 {
496         switch (cmd) {
497         case SNDRV_PCM_TRIGGER_START:
498         case SNDRV_PCM_TRIGGER_RESUME:
499                 if (chip->active & DAC2)
500                         return 0;
501                 chip->active |= DAC2;
502                 /* Start DMA */
503                 if (chip->dma2 >= 4)
504                         snd_es18xx_mixer_write(chip, 0x78, 0xb3);
505                 else
506                         snd_es18xx_mixer_write(chip, 0x78, 0x93);
507 #ifdef AVOID_POPS
508                 /* Avoid pops */
509                 mdelay(100);
510                 if (chip->caps & ES18XX_PCM2)
511                         /* Restore Audio 2 volume */
512                         snd_es18xx_mixer_write(chip, 0x7C, chip->audio2_vol);
513                 else
514                         /* Enable PCM output */
515                         snd_es18xx_dsp_command(chip, 0xD1);
516 #endif
517                 break;
518         case SNDRV_PCM_TRIGGER_STOP:
519         case SNDRV_PCM_TRIGGER_SUSPEND:
520                 if (!(chip->active & DAC2))
521                         return 0;
522                 chip->active &= ~DAC2;
523                 /* Stop DMA */
524                 snd_es18xx_mixer_write(chip, 0x78, 0x00);
525 #ifdef AVOID_POPS
526                 mdelay(25);
527                 if (chip->caps & ES18XX_PCM2)
528                         /* Set Audio 2 volume to 0 */
529                         snd_es18xx_mixer_write(chip, 0x7C, 0);
530                 else
531                         /* Disable PCM output */
532                         snd_es18xx_dsp_command(chip, 0xD3);
533 #endif
534                 break;
535         default:
536                 return -EINVAL;
537         }
538 
539         return 0;
540 }
541 
542 static int snd_es18xx_capture_hw_params(struct snd_pcm_substream *substream,
543                                         struct snd_pcm_hw_params *hw_params)
544 {
545         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
546         int shift, err;
547 
548         shift = 0;
549         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
550             chip->playback_a_substream &&
551             params_channels(hw_params) != 1) {
552                 _snd_pcm_hw_param_setempty(hw_params, SNDRV_PCM_HW_PARAM_CHANNELS);
553                 return -EBUSY;
554         }
555         if (params_channels(hw_params) == 2)
556                 shift++;
557         if (snd_pcm_format_width(params_format(hw_params)) == 16)
558                 shift++;
559         chip->dma1_shift = shift;
560         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
561                 return err;
562         return 0;
563 }
564 
565 static int snd_es18xx_capture_prepare(struct snd_pcm_substream *substream)
566 {
567         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
568         struct snd_pcm_runtime *runtime = substream->runtime;
569         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
570         unsigned int count = snd_pcm_lib_period_bytes(substream);
571 
572         snd_es18xx_reset_fifo(chip);
573 
574         /* Set stereo/mono */
575         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
576 
577         snd_es18xx_rate_set(chip, substream, ADC1);
578 
579         /* Transfer Count Reload */
580         count = 0x10000 - count;
581         snd_es18xx_write(chip, 0xA4, count & 0xff);
582         snd_es18xx_write(chip, 0xA5, count >> 8);
583 
584 #ifdef AVOID_POPS
585         mdelay(100);
586 #endif
587 
588         /* Set format */
589         snd_es18xx_write(chip, 0xB7, 
590                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
591         snd_es18xx_write(chip, 0xB7, 0x90 |
592                          ((runtime->channels == 1) ? 0x40 : 0x08) |
593                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
594                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
595 
596         /* Set DMA controller */
597         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
598 
599         return 0;
600 }
601 
602 static int snd_es18xx_capture_trigger(struct snd_pcm_substream *substream,
603                                       int cmd)
604 {
605         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
606 
607         switch (cmd) {
608         case SNDRV_PCM_TRIGGER_START:
609         case SNDRV_PCM_TRIGGER_RESUME:
610                 if (chip->active & ADC1)
611                         return 0;
612                 chip->active |= ADC1;
613                 /* Start DMA */
614                 snd_es18xx_write(chip, 0xB8, 0x0f);
615                 break;
616         case SNDRV_PCM_TRIGGER_STOP:
617         case SNDRV_PCM_TRIGGER_SUSPEND:
618                 if (!(chip->active & ADC1))
619                         return 0;
620                 chip->active &= ~ADC1;
621                 /* Stop DMA */
622                 snd_es18xx_write(chip, 0xB8, 0x00);
623                 break;
624         default:
625                 return -EINVAL;
626         }
627 
628         return 0;
629 }
630 
631 static int snd_es18xx_playback2_prepare(struct snd_es18xx *chip,
632                                         struct snd_pcm_substream *substream)
633 {
634         struct snd_pcm_runtime *runtime = substream->runtime;
635         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
636         unsigned int count = snd_pcm_lib_period_bytes(substream);
637 
638         snd_es18xx_reset_fifo(chip);
639 
640         /* Set stereo/mono */
641         snd_es18xx_bits(chip, 0xA8, 0x03, runtime->channels == 1 ? 0x02 : 0x01);
642 
643         snd_es18xx_rate_set(chip, substream, DAC1);
644 
645         /* Transfer Count Reload */
646         count = 0x10000 - count;
647         snd_es18xx_write(chip, 0xA4, count & 0xff);
648         snd_es18xx_write(chip, 0xA5, count >> 8);
649 
650         /* Set format */
651         snd_es18xx_write(chip, 0xB6,
652                          snd_pcm_format_unsigned(runtime->format) ? 0x80 : 0x00);
653         snd_es18xx_write(chip, 0xB7, 
654                          snd_pcm_format_unsigned(runtime->format) ? 0x51 : 0x71);
655         snd_es18xx_write(chip, 0xB7, 0x90 |
656                          (runtime->channels == 1 ? 0x40 : 0x08) |
657                          (snd_pcm_format_width(runtime->format) == 16 ? 0x04 : 0x00) |
658                          (snd_pcm_format_unsigned(runtime->format) ? 0x00 : 0x20));
659 
660         /* Set DMA controller */
661         snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
662 
663         return 0;
664 }
665 
666 static int snd_es18xx_playback2_trigger(struct snd_es18xx *chip,
667                                         struct snd_pcm_substream *substream,
668                                         int cmd)
669 {
670         switch (cmd) {
671         case SNDRV_PCM_TRIGGER_START:
672         case SNDRV_PCM_TRIGGER_RESUME:
673                 if (chip->active & DAC1)
674                         return 0;
675                 chip->active |= DAC1;
676                 /* Start DMA */
677                 snd_es18xx_write(chip, 0xB8, 0x05);
678 #ifdef AVOID_POPS
679                 /* Avoid pops */
680                 mdelay(100);
681                 /* Enable Audio 1 */
682                 snd_es18xx_dsp_command(chip, 0xD1);
683 #endif
684                 break;
685         case SNDRV_PCM_TRIGGER_STOP:
686         case SNDRV_PCM_TRIGGER_SUSPEND:
687                 if (!(chip->active & DAC1))
688                         return 0;
689                 chip->active &= ~DAC1;
690                 /* Stop DMA */
691                 snd_es18xx_write(chip, 0xB8, 0x00);
692 #ifdef AVOID_POPS
693                 /* Avoid pops */
694                 mdelay(25);
695                 /* Disable Audio 1 */
696                 snd_es18xx_dsp_command(chip, 0xD3);
697 #endif
698                 break;
699         default:
700                 return -EINVAL;
701         }
702 
703         return 0;
704 }
705 
706 static int snd_es18xx_playback_prepare(struct snd_pcm_substream *substream)
707 {
708         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
709         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
710                 return snd_es18xx_playback1_prepare(chip, substream);
711         else
712                 return snd_es18xx_playback2_prepare(chip, substream);
713 }
714 
715 static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
716                                        int cmd)
717 {
718         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
719         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
720                 return snd_es18xx_playback1_trigger(chip, substream, cmd);
721         else
722                 return snd_es18xx_playback2_trigger(chip, substream, cmd);
723 }
724 
725 static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id)
726 {
727         struct snd_card *card = dev_id;
728         struct snd_es18xx *chip = card->private_data;
729         unsigned char status;
730 
731         if (chip->caps & ES18XX_CONTROL) {
732                 /* Read Interrupt status */
733                 status = inb(chip->ctrl_port + 6);
734         } else {
735                 /* Read Interrupt status */
736                 status = snd_es18xx_mixer_read(chip, 0x7f) >> 4;
737         }
738 #if 0
739         else {
740                 status = 0;
741                 if (inb(chip->port + 0x0C) & 0x01)
742                         status |= AUDIO1_IRQ;
743                 if (snd_es18xx_mixer_read(chip, 0x7A) & 0x80)
744                         status |= AUDIO2_IRQ;
745                 if ((chip->caps & ES18XX_HWV) &&
746                     snd_es18xx_mixer_read(chip, 0x64) & 0x10)
747                         status |= HWV_IRQ;
748         }
749 #endif
750 
751         /* Audio 1 & Audio 2 */
752         if (status & AUDIO2_IRQ) {
753                 if (chip->active & DAC2)
754                         snd_pcm_period_elapsed(chip->playback_a_substream);
755                 /* ack interrupt */
756                 snd_es18xx_mixer_bits(chip, 0x7A, 0x80, 0x00);
757         }
758         if (status & AUDIO1_IRQ) {
759                 /* ok.. capture is active */
760                 if (chip->active & ADC1)
761                         snd_pcm_period_elapsed(chip->capture_a_substream);
762                 /* ok.. playback2 is active */
763                 else if (chip->active & DAC1)
764                         snd_pcm_period_elapsed(chip->playback_b_substream);
765                 /* ack interrupt */
766                 inb(chip->port + 0x0E);
767         }
768 
769         /* MPU */
770         if ((status & MPU_IRQ) && chip->rmidi)
771                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
772 
773         /* Hardware volume */
774         if (status & HWV_IRQ) {
775                 int split = 0;
776                 if (chip->caps & ES18XX_HWV) {
777                         split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
778                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
779                                         &chip->hw_switch->id);
780                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
781                                         &chip->hw_volume->id);
782                 }
783                 if (!split) {
784                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
785                                         &chip->master_switch->id);
786                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
787                                         &chip->master_volume->id);
788                 }
789                 /* ack interrupt */
790                 snd_es18xx_mixer_write(chip, 0x66, 0x00);
791         }
792         return IRQ_HANDLED;
793 }
794 
795 static snd_pcm_uframes_t snd_es18xx_playback_pointer(struct snd_pcm_substream *substream)
796 {
797         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
798         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
799         int pos;
800 
801         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
802                 if (!(chip->active & DAC2))
803                         return 0;
804                 pos = snd_dma_pointer(chip->dma2, size);
805                 return pos >> chip->dma2_shift;
806         } else {
807                 if (!(chip->active & DAC1))
808                         return 0;
809                 pos = snd_dma_pointer(chip->dma1, size);
810                 return pos >> chip->dma1_shift;
811         }
812 }
813 
814 static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *substream)
815 {
816         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
817         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
818         int pos;
819 
820         if (!(chip->active & ADC1))
821                 return 0;
822         pos = snd_dma_pointer(chip->dma1, size);
823         return pos >> chip->dma1_shift;
824 }
825 
826 static const struct snd_pcm_hardware snd_es18xx_playback =
827 {
828         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
829                                  SNDRV_PCM_INFO_RESUME |
830                                  SNDRV_PCM_INFO_MMAP_VALID),
831         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
832                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
833         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
834         .rate_min =             4000,
835         .rate_max =             48000,
836         .channels_min =         1,
837         .channels_max =         2,
838         .buffer_bytes_max =     65536,
839         .period_bytes_min =     64,
840         .period_bytes_max =     65536,
841         .periods_min =          1,
842         .periods_max =          1024,
843         .fifo_size =            0,
844 };
845 
846 static const struct snd_pcm_hardware snd_es18xx_capture =
847 {
848         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
849                                  SNDRV_PCM_INFO_RESUME |
850                                  SNDRV_PCM_INFO_MMAP_VALID),
851         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 
852                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
853         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
854         .rate_min =             4000,
855         .rate_max =             48000,
856         .channels_min =         1,
857         .channels_max =         2,
858         .buffer_bytes_max =     65536,
859         .period_bytes_min =     64,
860         .period_bytes_max =     65536,
861         .periods_min =          1,
862         .periods_max =          1024,
863         .fifo_size =            0,
864 };
865 
866 static int snd_es18xx_playback_open(struct snd_pcm_substream *substream)
867 {
868         struct snd_pcm_runtime *runtime = substream->runtime;
869         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
870 
871         if (substream->number == 0 && (chip->caps & ES18XX_PCM2)) {
872                 if ((chip->caps & ES18XX_DUPLEX_MONO) &&
873                     chip->capture_a_substream && 
874                     chip->capture_a_substream->runtime->channels != 1)
875                         return -EAGAIN;
876                 chip->playback_a_substream = substream;
877         } else if (substream->number <= 1) {
878                 if (chip->capture_a_substream)
879                         return -EAGAIN;
880                 chip->playback_b_substream = substream;
881         } else {
882                 snd_BUG();
883                 return -EINVAL;
884         }
885         substream->runtime->hw = snd_es18xx_playback;
886         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
887                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
888         return 0;
889 }
890 
891 static int snd_es18xx_capture_open(struct snd_pcm_substream *substream)
892 {
893         struct snd_pcm_runtime *runtime = substream->runtime;
894         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
895 
896         if (chip->playback_b_substream)
897                 return -EAGAIN;
898         if ((chip->caps & ES18XX_DUPLEX_MONO) &&
899             chip->playback_a_substream &&
900             chip->playback_a_substream->runtime->channels != 1)
901                 return -EAGAIN;
902         chip->capture_a_substream = substream;
903         substream->runtime->hw = snd_es18xx_capture;
904         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
905                                       (chip->caps & ES18XX_NEW_RATE) ? &new_hw_constraints_clocks : &old_hw_constraints_clocks);
906         return 0;
907 }
908 
909 static int snd_es18xx_playback_close(struct snd_pcm_substream *substream)
910 {
911         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
912 
913         if (substream->number == 0 && (chip->caps & ES18XX_PCM2))
914                 chip->playback_a_substream = NULL;
915         else
916                 chip->playback_b_substream = NULL;
917         
918         snd_pcm_lib_free_pages(substream);
919         return 0;
920 }
921 
922 static int snd_es18xx_capture_close(struct snd_pcm_substream *substream)
923 {
924         struct snd_es18xx *chip = snd_pcm_substream_chip(substream);
925 
926         chip->capture_a_substream = NULL;
927         snd_pcm_lib_free_pages(substream);
928         return 0;
929 }
930 
931 /*
932  *  MIXER part
933  */
934 
935 /* Record source mux routines:
936  * Depending on the chipset this mux switches between 4, 5, or 8 possible inputs.
937  * bit table for the 4/5 source mux:
938  * reg 1C:
939  *  b2 b1 b0   muxSource
940  *   x  0  x   microphone
941  *   0  1  x   CD
942  *   1  1  0   line
943  *   1  1  1   mixer
944  * if it's "mixer" and it's a 5 source mux chipset then reg 7A bit 3 determines
945  * either the play mixer or the capture mixer.
946  *
947  * "map4Source" translates from source number to reg bit pattern
948  * "invMap4Source" translates from reg bit pattern to source number
949  */
950 
951 static int snd_es18xx_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
952 {
953         static const char * const texts5Source[5] = {
954                 "Mic", "CD", "Line", "Master", "Mix"
955         };
956         static const char * const texts8Source[8] = {
957                 "Mic", "Mic Master", "CD", "AOUT",
958                 "Mic1", "Mix", "Line", "Master"
959         };
960         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
961 
962         switch (chip->version) {
963         case 0x1868:
964         case 0x1878:
965                 return snd_ctl_enum_info(uinfo, 1, 4, texts5Source);
966         case 0x1887:
967         case 0x1888:
968                 return snd_ctl_enum_info(uinfo, 1, 5, texts5Source);
969         case 0x1869: /* DS somewhat contradictory for 1869: could be be 5 or 8 */
970         case 0x1879:
971                 return snd_ctl_enum_info(uinfo, 1, 8, texts8Source);
972         default:
973                 return -EINVAL;
974         }
975 }
976 
977 static int snd_es18xx_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
978 {
979         static unsigned char invMap4Source[8] = {0, 0, 1, 1, 0, 0, 2, 3};
980         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
981         int muxSource = snd_es18xx_mixer_read(chip, 0x1c) & 0x07;
982         if (!(chip->version == 0x1869 || chip->version == 0x1879)) {
983                 muxSource = invMap4Source[muxSource];
984                 if (muxSource==3 && 
985                     (chip->version == 0x1887 || chip->version == 0x1888) &&
986                     (snd_es18xx_mixer_read(chip, 0x7a) & 0x08)
987                 ) 
988                         muxSource = 4;
989         }
990         ucontrol->value.enumerated.item[0] = muxSource;
991         return 0;
992 }
993 
994 static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
995 {
996         static unsigned char map4Source[4] = {0, 2, 6, 7};
997         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
998         unsigned char val = ucontrol->value.enumerated.item[0];
999         unsigned char retVal = 0;
1000 
1001         switch (chip->version) {
1002  /* 5 source chips */
1003         case 0x1887:
1004         case 0x1888:
1005                 if (val > 4)
1006                         return -EINVAL;
1007                 if (val == 4) {
1008                         retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x08) != 0x08;
1009                         val = 3;
1010                 } else
1011                         retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x00) != 0x00;
1012                 /* fall through */
1013  /* 4 source chips */
1014         case 0x1868:
1015         case 0x1878:
1016                 if (val > 3)
1017                         return -EINVAL;
1018                 val = map4Source[val];
1019                 break;
1020  /* 8 source chips */
1021         case 0x1869:
1022         case 0x1879:
1023                 if (val > 7)
1024                         return -EINVAL;
1025                 break;
1026         default:
1027                 return -EINVAL;
1028         }
1029         return (snd_es18xx_mixer_bits(chip, 0x1c, 0x07, val) != val) || retVal;
1030 }
1031 
1032 #define snd_es18xx_info_spatializer_enable      snd_ctl_boolean_mono_info
1033 
1034 static int snd_es18xx_get_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1035 {
1036         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1037         unsigned char val = snd_es18xx_mixer_read(chip, 0x50);
1038         ucontrol->value.integer.value[0] = !!(val & 8);
1039         return 0;
1040 }
1041 
1042 static int snd_es18xx_put_spatializer_enable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1043 {
1044         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1045         unsigned char oval, nval;
1046         int change;
1047         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1048         oval = snd_es18xx_mixer_read(chip, 0x50) & 0x0c;
1049         change = nval != oval;
1050         if (change) {
1051                 snd_es18xx_mixer_write(chip, 0x50, nval & ~0x04);
1052                 snd_es18xx_mixer_write(chip, 0x50, nval);
1053         }
1054         return change;
1055 }
1056 
1057 static int snd_es18xx_info_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1058 {
1059         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1060         uinfo->count = 2;
1061         uinfo->value.integer.min = 0;
1062         uinfo->value.integer.max = 63;
1063         return 0;
1064 }
1065 
1066 static int snd_es18xx_get_hw_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1067 {
1068         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1069         ucontrol->value.integer.value[0] = snd_es18xx_mixer_read(chip, 0x61) & 0x3f;
1070         ucontrol->value.integer.value[1] = snd_es18xx_mixer_read(chip, 0x63) & 0x3f;
1071         return 0;
1072 }
1073 
1074 #define snd_es18xx_info_hw_switch       snd_ctl_boolean_stereo_info
1075 
1076 static int snd_es18xx_get_hw_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1077 {
1078         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1079         ucontrol->value.integer.value[0] = !(snd_es18xx_mixer_read(chip, 0x61) & 0x40);
1080         ucontrol->value.integer.value[1] = !(snd_es18xx_mixer_read(chip, 0x63) & 0x40);
1081         return 0;
1082 }
1083 
1084 static void snd_es18xx_hwv_free(struct snd_kcontrol *kcontrol)
1085 {
1086         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1087         chip->master_volume = NULL;
1088         chip->master_switch = NULL;
1089         chip->hw_volume = NULL;
1090         chip->hw_switch = NULL;
1091 }
1092 
1093 static int snd_es18xx_reg_bits(struct snd_es18xx *chip, unsigned char reg,
1094                                unsigned char mask, unsigned char val)
1095 {
1096         if (reg < 0xa0)
1097                 return snd_es18xx_mixer_bits(chip, reg, mask, val);
1098         else
1099                 return snd_es18xx_bits(chip, reg, mask, val);
1100 }
1101 
1102 static int snd_es18xx_reg_read(struct snd_es18xx *chip, unsigned char reg)
1103 {
1104         if (reg < 0xa0)
1105                 return snd_es18xx_mixer_read(chip, reg);
1106         else
1107                 return snd_es18xx_read(chip, reg);
1108 }
1109 
1110 #define ES18XX_SINGLE(xname, xindex, reg, shift, mask, flags) \
1111 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1112   .info = snd_es18xx_info_single, \
1113   .get = snd_es18xx_get_single, .put = snd_es18xx_put_single, \
1114   .private_value = reg | (shift << 8) | (mask << 16) | (flags << 24) }
1115 
1116 #define ES18XX_FL_INVERT        (1 << 0)
1117 #define ES18XX_FL_PMPORT        (1 << 1)
1118 
1119 static int snd_es18xx_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1120 {
1121         int mask = (kcontrol->private_value >> 16) & 0xff;
1122 
1123         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1124         uinfo->count = 1;
1125         uinfo->value.integer.min = 0;
1126         uinfo->value.integer.max = mask;
1127         return 0;
1128 }
1129 
1130 static int snd_es18xx_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1131 {
1132         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1133         int reg = kcontrol->private_value & 0xff;
1134         int shift = (kcontrol->private_value >> 8) & 0xff;
1135         int mask = (kcontrol->private_value >> 16) & 0xff;
1136         int invert = (kcontrol->private_value >> 24) & ES18XX_FL_INVERT;
1137         int pm_port = (kcontrol->private_value >> 24) & ES18XX_FL_PMPORT;
1138         int val;
1139 
1140         if (pm_port)
1141                 val = inb(chip->port + ES18XX_PM);
1142         else
1143                 val = snd_es18xx_reg_read(chip, reg);
1144         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1145         if (invert)
1146                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1147         return 0;
1148 }
1149 
1150 static int snd_es18xx_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1151 {
1152         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1153         int reg = kcontrol->private_value & 0xff;
1154         int shift = (kcontrol->private_value >> 8) & 0xff;
1155         int mask = (kcontrol->private_value >> 16) & 0xff;
1156         int invert = (kcontrol->private_value >> 24) & ES18XX_FL_INVERT;
1157         int pm_port = (kcontrol->private_value >> 24) & ES18XX_FL_PMPORT;
1158         unsigned char val;
1159         
1160         val = (ucontrol->value.integer.value[0] & mask);
1161         if (invert)
1162                 val = mask - val;
1163         mask <<= shift;
1164         val <<= shift;
1165         if (pm_port) {
1166                 unsigned char cur = inb(chip->port + ES18XX_PM);
1167 
1168                 if ((cur & mask) == val)
1169                         return 0;
1170                 outb((cur & ~mask) | val, chip->port + ES18XX_PM);
1171                 return 1;
1172         }
1173 
1174         return snd_es18xx_reg_bits(chip, reg, mask, val) != val;
1175 }
1176 
1177 #define ES18XX_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1178 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1179   .info = snd_es18xx_info_double, \
1180   .get = snd_es18xx_get_double, .put = snd_es18xx_put_double, \
1181   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1182 
1183 static int snd_es18xx_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1184 {
1185         int mask = (kcontrol->private_value >> 24) & 0xff;
1186 
1187         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1188         uinfo->count = 2;
1189         uinfo->value.integer.min = 0;
1190         uinfo->value.integer.max = mask;
1191         return 0;
1192 }
1193 
1194 static int snd_es18xx_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1195 {
1196         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1197         int left_reg = kcontrol->private_value & 0xff;
1198         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1199         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1200         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1201         int mask = (kcontrol->private_value >> 24) & 0xff;
1202         int invert = (kcontrol->private_value >> 22) & 1;
1203         unsigned char left, right;
1204         
1205         left = snd_es18xx_reg_read(chip, left_reg);
1206         if (left_reg != right_reg)
1207                 right = snd_es18xx_reg_read(chip, right_reg);
1208         else
1209                 right = left;
1210         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1211         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1212         if (invert) {
1213                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1214                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1215         }
1216         return 0;
1217 }
1218 
1219 static int snd_es18xx_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1220 {
1221         struct snd_es18xx *chip = snd_kcontrol_chip(kcontrol);
1222         int left_reg = kcontrol->private_value & 0xff;
1223         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1224         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1225         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1226         int mask = (kcontrol->private_value >> 24) & 0xff;
1227         int invert = (kcontrol->private_value >> 22) & 1;
1228         int change;
1229         unsigned char val1, val2, mask1, mask2;
1230         
1231         val1 = ucontrol->value.integer.value[0] & mask;
1232         val2 = ucontrol->value.integer.value[1] & mask;
1233         if (invert) {
1234                 val1 = mask - val1;
1235                 val2 = mask - val2;
1236         }
1237         val1 <<= shift_left;
1238         val2 <<= shift_right;
1239         mask1 = mask << shift_left;
1240         mask2 = mask << shift_right;
1241         if (left_reg != right_reg) {
1242                 change = 0;
1243                 if (snd_es18xx_reg_bits(chip, left_reg, mask1, val1) != val1)
1244                         change = 1;
1245                 if (snd_es18xx_reg_bits(chip, right_reg, mask2, val2) != val2)
1246                         change = 1;
1247         } else {
1248                 change = (snd_es18xx_reg_bits(chip, left_reg, mask1 | mask2, 
1249                                               val1 | val2) != (val1 | val2));
1250         }
1251         return change;
1252 }
1253 
1254 /* Mixer controls
1255  * These arrays contain setup data for mixer controls.
1256  * 
1257  * The controls that are universal to all chipsets are fully initialized
1258  * here.
1259  */
1260 static struct snd_kcontrol_new snd_es18xx_base_controls[] = {
1261 ES18XX_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1262 ES18XX_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1263 ES18XX_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1264 ES18XX_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1265 ES18XX_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1266 ES18XX_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1267 ES18XX_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1268 ES18XX_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1269 ES18XX_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1270 {
1271         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1272         .name = "Capture Source",
1273         .info = snd_es18xx_info_mux,
1274         .get = snd_es18xx_get_mux,
1275         .put = snd_es18xx_put_mux,
1276 }
1277 };
1278 
1279 static struct snd_kcontrol_new snd_es18xx_recmix_controls[] = {
1280 ES18XX_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1281 ES18XX_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1282 ES18XX_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1283 ES18XX_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1284 ES18XX_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1285 ES18XX_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0)
1286 };
1287 
1288 /*
1289  * The chipset specific mixer controls
1290  */
1291 static struct snd_kcontrol_new snd_es18xx_opt_speaker =
1292         ES18XX_SINGLE("Beep Playback Volume", 0, 0x3c, 0, 7, 0);
1293 
1294 static struct snd_kcontrol_new snd_es18xx_opt_1869[] = {
1295 ES18XX_SINGLE("Capture Switch", 0, 0x1c, 4, 1, ES18XX_FL_INVERT),
1296 ES18XX_SINGLE("Video Playback Switch", 0, 0x7f, 0, 1, 0),
1297 ES18XX_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1298 ES18XX_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1299 };
1300 
1301 static struct snd_kcontrol_new snd_es18xx_opt_1878 =
1302         ES18XX_DOUBLE("Video Playback Volume", 0, 0x68, 0x68, 4, 0, 15, 0);
1303 
1304 static struct snd_kcontrol_new snd_es18xx_opt_1879[] = {
1305 ES18XX_SINGLE("Video Playback Switch", 0, 0x71, 6, 1, 0),
1306 ES18XX_DOUBLE("Video Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1307 ES18XX_DOUBLE("Video Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0)
1308 };
1309 
1310 static struct snd_kcontrol_new snd_es18xx_pcm1_controls[] = {
1311 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x14, 0x14, 4, 0, 15, 0),
1312 };
1313 
1314 static struct snd_kcontrol_new snd_es18xx_pcm2_controls[] = {
1315 ES18XX_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1316 ES18XX_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0)
1317 };
1318 
1319 static struct snd_kcontrol_new snd_es18xx_spatializer_controls[] = {
1320 ES18XX_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1321 {
1322         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1323         .name = "3D Control - Switch",
1324         .info = snd_es18xx_info_spatializer_enable,
1325         .get = snd_es18xx_get_spatializer_enable,
1326         .put = snd_es18xx_put_spatializer_enable,
1327 }
1328 };
1329 
1330 static struct snd_kcontrol_new snd_es18xx_micpre1_control = 
1331 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0xa9, 2, 1, 0);
1332 
1333 static struct snd_kcontrol_new snd_es18xx_micpre2_control =
1334 ES18XX_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0);
1335 
1336 static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
1337 {
1338         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1339         .name = "Hardware Master Playback Volume",
1340         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1341         .info = snd_es18xx_info_hw_volume,
1342         .get = snd_es18xx_get_hw_volume,
1343 },
1344 {
1345         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1346         .name = "Hardware Master Playback Switch",
1347         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1348         .info = snd_es18xx_info_hw_switch,
1349         .get = snd_es18xx_get_hw_switch,
1350 },
1351 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
1352 };
1353 
1354 static struct snd_kcontrol_new snd_es18xx_opt_gpo_2bit[] = {
1355 ES18XX_SINGLE("GPO0 Switch", 0, ES18XX_PM, 0, 1, ES18XX_FL_PMPORT),
1356 ES18XX_SINGLE("GPO1 Switch", 0, ES18XX_PM, 1, 1, ES18XX_FL_PMPORT),
1357 };
1358 
1359 static int snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
1360 {
1361         int data;
1362 
1363         outb(reg, chip->ctrl_port);
1364         data = inb(chip->ctrl_port + 1);
1365         return data;
1366 }
1367 
1368 static void snd_es18xx_config_write(struct snd_es18xx *chip,
1369                                     unsigned char reg, unsigned char data)
1370 {
1371         /* No need for spinlocks, this function is used only in
1372            otherwise protected init code */
1373         outb(reg, chip->ctrl_port);
1374         outb(data, chip->ctrl_port + 1);
1375 #ifdef REG_DEBUG
1376         snd_printk(KERN_DEBUG "Config reg %02x set to %02x\n", reg, data);
1377 #endif
1378 }
1379 
1380 static int snd_es18xx_initialize(struct snd_es18xx *chip,
1381                                  unsigned long mpu_port,
1382                                  unsigned long fm_port)
1383 {
1384         int mask = 0;
1385 
1386         /* enable extended mode */
1387         snd_es18xx_dsp_command(chip, 0xC6);
1388         /* Reset mixer registers */
1389         snd_es18xx_mixer_write(chip, 0x00, 0x00);
1390 
1391         /* Audio 1 DMA demand mode (4 bytes/request) */
1392         snd_es18xx_write(chip, 0xB9, 2);
1393         if (chip->caps & ES18XX_CONTROL) {
1394                 /* Hardware volume IRQ */
1395                 snd_es18xx_config_write(chip, 0x27, chip->irq);
1396                 if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
1397                         /* FM I/O */
1398                         snd_es18xx_config_write(chip, 0x62, fm_port >> 8);
1399                         snd_es18xx_config_write(chip, 0x63, fm_port & 0xff);
1400                 }
1401                 if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1402                         /* MPU-401 I/O */
1403                         snd_es18xx_config_write(chip, 0x64, mpu_port >> 8);
1404                         snd_es18xx_config_write(chip, 0x65, mpu_port & 0xff);
1405                         /* MPU-401 IRQ */
1406                         snd_es18xx_config_write(chip, 0x28, chip->irq);
1407                 }
1408                 /* Audio1 IRQ */
1409                 snd_es18xx_config_write(chip, 0x70, chip->irq);
1410                 /* Audio2 IRQ */
1411                 snd_es18xx_config_write(chip, 0x72, chip->irq);
1412                 /* Audio1 DMA */
1413                 snd_es18xx_config_write(chip, 0x74, chip->dma1);
1414                 /* Audio2 DMA */
1415                 snd_es18xx_config_write(chip, 0x75, chip->dma2);
1416 
1417                 /* Enable Audio 1 IRQ */
1418                 snd_es18xx_write(chip, 0xB1, 0x50);
1419                 /* Enable Audio 2 IRQ */
1420                 snd_es18xx_mixer_write(chip, 0x7A, 0x40);
1421                 /* Enable Audio 1 DMA */
1422                 snd_es18xx_write(chip, 0xB2, 0x50);
1423                 /* Enable MPU and hardware volume interrupt */
1424                 snd_es18xx_mixer_write(chip, 0x64, 0x42);
1425                 /* Enable ESS wavetable input */
1426                 snd_es18xx_mixer_bits(chip, 0x48, 0x10, 0x10);
1427         }
1428         else {
1429                 int irqmask, dma1mask, dma2mask;
1430                 switch (chip->irq) {
1431                 case 2:
1432                 case 9:
1433                         irqmask = 0;
1434                         break;
1435                 case 5:
1436                         irqmask = 1;
1437                         break;
1438                 case 7:
1439                         irqmask = 2;
1440                         break;
1441                 case 10:
1442                         irqmask = 3;
1443                         break;
1444                 default:
1445                         snd_printk(KERN_ERR "invalid irq %d\n", chip->irq);
1446                         return -ENODEV;
1447                 }
1448                 switch (chip->dma1) {
1449                 case 0:
1450                         dma1mask = 1;
1451                         break;
1452                 case 1:
1453                         dma1mask = 2;
1454                         break;
1455                 case 3:
1456                         dma1mask = 3;
1457                         break;
1458                 default:
1459                         snd_printk(KERN_ERR "invalid dma1 %d\n", chip->dma1);
1460                         return -ENODEV;
1461                 }
1462                 switch (chip->dma2) {
1463                 case 0:
1464                         dma2mask = 0;
1465                         break;
1466                 case 1:
1467                         dma2mask = 1;
1468                         break;
1469                 case 3:
1470                         dma2mask = 2;
1471                         break;
1472                 case 5:
1473                         dma2mask = 3;
1474                         break;
1475                 default:
1476                         snd_printk(KERN_ERR "invalid dma2 %d\n", chip->dma2);
1477                         return -ENODEV;
1478                 }
1479 
1480                 /* Enable and set Audio 1 IRQ */
1481                 snd_es18xx_write(chip, 0xB1, 0x50 | (irqmask << 2));
1482                 /* Enable and set Audio 1 DMA */
1483                 snd_es18xx_write(chip, 0xB2, 0x50 | (dma1mask << 2));
1484                 /* Set Audio 2 DMA */
1485                 snd_es18xx_mixer_bits(chip, 0x7d, 0x07, 0x04 | dma2mask);
1486                 /* Enable Audio 2 IRQ and DMA
1487                    Set capture mixer input */
1488                 snd_es18xx_mixer_write(chip, 0x7A, 0x68);
1489                 /* Enable and set hardware volume interrupt */
1490                 snd_es18xx_mixer_write(chip, 0x64, 0x06);
1491                 if (mpu_port > 0 && mpu_port != SNDRV_AUTO_PORT) {
1492                         /* MPU401 share irq with audio
1493                            Joystick enabled
1494                            FM enabled */
1495                         snd_es18xx_mixer_write(chip, 0x40,
1496                                                0x43 | (mpu_port & 0xf0) >> 1);
1497                 }
1498                 snd_es18xx_mixer_write(chip, 0x7f, ((irqmask + 1) << 1) | 0x01);
1499         }
1500         if (chip->caps & ES18XX_NEW_RATE) {
1501                 /* Change behaviour of register A1
1502                    4x oversampling
1503                    2nd channel DAC asynchronous */
1504                 snd_es18xx_mixer_write(chip, 0x71, 0x32);
1505         }
1506         if (!(chip->caps & ES18XX_PCM2)) {
1507                 /* Enable DMA FIFO */
1508                 snd_es18xx_write(chip, 0xB7, 0x80);
1509         }
1510         if (chip->caps & ES18XX_SPATIALIZER) {
1511                 /* Set spatializer parameters to recommended values */
1512                 snd_es18xx_mixer_write(chip, 0x54, 0x8f);
1513                 snd_es18xx_mixer_write(chip, 0x56, 0x95);
1514                 snd_es18xx_mixer_write(chip, 0x58, 0x94);
1515                 snd_es18xx_mixer_write(chip, 0x5a, 0x80);
1516         }
1517         /* Flip the "enable I2S" bits for those chipsets that need it */
1518         switch (chip->version) {
1519         case 0x1879:
1520                 //Leaving I2S enabled on the 1879 screws up the PCM playback (rate effected somehow)
1521                 //so a Switch control has been added to toggle this 0x71 bit on/off:
1522                 //snd_es18xx_mixer_bits(chip, 0x71, 0x40, 0x40);
1523                 /* Note: we fall through on purpose here. */
1524         case 0x1878:
1525                 snd_es18xx_config_write(chip, 0x29, snd_es18xx_config_read(chip, 0x29) | 0x40);
1526                 break;
1527         }
1528         /* Mute input source */
1529         if (chip->caps & ES18XX_MUTEREC)
1530                 mask = 0x10;
1531         if (chip->caps & ES18XX_RECMIX)
1532                 snd_es18xx_mixer_write(chip, 0x1c, 0x05 | mask);
1533         else {
1534                 snd_es18xx_mixer_write(chip, 0x1c, 0x00 | mask);
1535                 snd_es18xx_write(chip, 0xb4, 0x00);
1536         }
1537 #ifndef AVOID_POPS
1538         /* Enable PCM output */
1539         snd_es18xx_dsp_command(chip, 0xD1);
1540 #endif
1541 
1542         return 0;
1543 }
1544 
1545 static int snd_es18xx_identify(struct snd_es18xx *chip)
1546 {
1547         int hi,lo;
1548 
1549         /* reset */
1550         if (snd_es18xx_reset(chip) < 0) {
1551                 snd_printk(KERN_ERR "reset at 0x%lx failed!!!\n", chip->port);
1552                 return -ENODEV;
1553         }
1554 
1555         snd_es18xx_dsp_command(chip, 0xe7);
1556         hi = snd_es18xx_dsp_get_byte(chip);
1557         if (hi < 0) {
1558                 return hi;
1559         }
1560         lo = snd_es18xx_dsp_get_byte(chip);
1561         if ((lo & 0xf0) != 0x80) {
1562                 return -ENODEV;
1563         }
1564         if (hi == 0x48) {
1565                 chip->version = 0x488;
1566                 return 0;
1567         }
1568         if (hi != 0x68) {
1569                 return -ENODEV;
1570         }
1571         if ((lo & 0x0f) < 8) {
1572                 chip->version = 0x688;
1573                 return 0;
1574         }
1575                         
1576         outb(0x40, chip->port + 0x04);
1577         udelay(10);
1578         hi = inb(chip->port + 0x05);
1579         udelay(10);
1580         lo = inb(chip->port + 0x05);
1581         if (hi != lo) {
1582                 chip->version = hi << 8 | lo;
1583                 chip->ctrl_port = inb(chip->port + 0x05) << 8;
1584                 udelay(10);
1585                 chip->ctrl_port += inb(chip->port + 0x05);
1586 
1587                 if ((chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL")) == NULL) {
1588                         snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port);
1589                         return -EBUSY;
1590                 }
1591 
1592                 return 0;
1593         }
1594 
1595         /* If has Hardware volume */
1596         if (snd_es18xx_mixer_writable(chip, 0x64, 0x04)) {
1597                 /* If has Audio2 */
1598                 if (snd_es18xx_mixer_writable(chip, 0x70, 0x7f)) {
1599                         /* If has volume count */
1600                         if (snd_es18xx_mixer_writable(chip, 0x64, 0x20)) {
1601                                 chip->version = 0x1887;
1602                         } else {
1603                                 chip->version = 0x1888;
1604                         }
1605                 } else {
1606                         chip->version = 0x1788;
1607                 }
1608         }
1609         else
1610                 chip->version = 0x1688;
1611         return 0;
1612 }
1613 
1614 static int snd_es18xx_probe(struct snd_es18xx *chip,
1615                             unsigned long mpu_port,
1616                             unsigned long fm_port)
1617 {
1618         if (snd_es18xx_identify(chip) < 0) {
1619                 snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port);
1620                 return -ENODEV;
1621         }
1622 
1623         switch (chip->version) {
1624         case 0x1868:
1625                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_CONTROL | ES18XX_GPO_2BIT;
1626                 break;
1627         case 0x1869:
1628                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_MONO | ES18XX_MUTEREC | ES18XX_CONTROL | ES18XX_HWV | ES18XX_GPO_2BIT;
1629                 break;
1630         case 0x1878:
1631                 chip->caps = ES18XX_DUPLEX_MONO | ES18XX_DUPLEX_SAME | ES18XX_I2S | ES18XX_CONTROL;
1632                 break;
1633         case 0x1879:
1634                 chip->caps = ES18XX_PCM2 | ES18XX_SPATIALIZER | ES18XX_RECMIX | ES18XX_NEW_RATE | ES18XX_AUXB | ES18XX_I2S | ES18XX_CONTROL | ES18XX_HWV;
1635                 break;
1636         case 0x1887:
1637         case 0x1888:
1638                 chip->caps = ES18XX_PCM2 | ES18XX_RECMIX | ES18XX_AUXB | ES18XX_DUPLEX_SAME | ES18XX_GPO_2BIT;
1639                 break;
1640         default:
1641                 snd_printk(KERN_ERR "[0x%lx] unsupported chip ES%x\n",
1642                            chip->port, chip->version);
1643                 return -ENODEV;
1644         }
1645 
1646         snd_printd("[0x%lx] ESS%x chip found\n", chip->port, chip->version);
1647 
1648         if (chip->dma1 == chip->dma2)
1649                 chip->caps &= ~(ES18XX_PCM2 | ES18XX_DUPLEX_SAME);
1650 
1651         return snd_es18xx_initialize(chip, mpu_port, fm_port);
1652 }
1653 
1654 static const struct snd_pcm_ops snd_es18xx_playback_ops = {
1655         .open =         snd_es18xx_playback_open,
1656         .close =        snd_es18xx_playback_close,
1657         .ioctl =        snd_pcm_lib_ioctl,
1658         .hw_params =    snd_es18xx_playback_hw_params,
1659         .hw_free =      snd_es18xx_pcm_hw_free,
1660         .prepare =      snd_es18xx_playback_prepare,
1661         .trigger =      snd_es18xx_playback_trigger,
1662         .pointer =      snd_es18xx_playback_pointer,
1663 };
1664 
1665 static const struct snd_pcm_ops snd_es18xx_capture_ops = {
1666         .open =         snd_es18xx_capture_open,
1667         .close =        snd_es18xx_capture_close,
1668         .ioctl =        snd_pcm_lib_ioctl,
1669         .hw_params =    snd_es18xx_capture_hw_params,
1670         .hw_free =      snd_es18xx_pcm_hw_free,
1671         .prepare =      snd_es18xx_capture_prepare,
1672         .trigger =      snd_es18xx_capture_trigger,
1673         .pointer =      snd_es18xx_capture_pointer,
1674 };
1675 
1676 static int snd_es18xx_pcm(struct snd_card *card, int device)
1677 {
1678         struct snd_es18xx *chip = card->private_data;
1679         struct snd_pcm *pcm;
1680         char str[16];
1681         int err;
1682 
1683         sprintf(str, "ES%x", chip->version);
1684         if (chip->caps & ES18XX_PCM2)
1685                 err = snd_pcm_new(card, str, device, 2, 1, &pcm);
1686         else
1687                 err = snd_pcm_new(card, str, device, 1, 1, &pcm);
1688         if (err < 0)
1689                 return err;
1690 
1691         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es18xx_playback_ops);
1692         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es18xx_capture_ops);
1693 
1694         /* global setup */
1695         pcm->private_data = chip;
1696         pcm->info_flags = 0;
1697         if (chip->caps & ES18XX_DUPLEX_SAME)
1698                 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1699         if (! (chip->caps & ES18XX_PCM2))
1700                 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1701         sprintf(pcm->name, "ESS AudioDrive ES%x", chip->version);
1702         chip->pcm = pcm;
1703 
1704         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1705                                               card->dev,
1706                                               64*1024,
1707                                               chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1708         return 0;
1709 }
1710 
1711 /* Power Management support functions */
1712 #ifdef CONFIG_PM
1713 static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
1714 {
1715         struct snd_es18xx *chip = card->private_data;
1716 
1717         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1718 
1719         /* power down */
1720         chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
1721         chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);
1722         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg);
1723         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_SUS);
1724 
1725         return 0;
1726 }
1727 
1728 static int snd_es18xx_resume(struct snd_card *card)
1729 {
1730         struct snd_es18xx *chip = card->private_data;
1731 
1732         /* restore PM register, we won't wake till (not 0x07) i/o activity though */
1733         snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
1734 
1735         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1736         return 0;
1737 }
1738 #endif /* CONFIG_PM */
1739 
1740 static int snd_es18xx_free(struct snd_card *card)
1741 {
1742         struct snd_es18xx *chip = card->private_data;
1743 
1744         release_and_free_resource(chip->res_port);
1745         release_and_free_resource(chip->res_ctrl_port);
1746         release_and_free_resource(chip->res_mpu_port);
1747         if (chip->irq >= 0)
1748                 free_irq(chip->irq, (void *) card);
1749         if (chip->dma1 >= 0) {
1750                 disable_dma(chip->dma1);
1751                 free_dma(chip->dma1);
1752         }
1753         if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) {
1754                 disable_dma(chip->dma2);
1755                 free_dma(chip->dma2);
1756         }
1757         return 0;
1758 }
1759 
1760 static int snd_es18xx_dev_free(struct snd_device *device)
1761 {
1762         return snd_es18xx_free(device->card);
1763 }
1764 
1765 static int snd_es18xx_new_device(struct snd_card *card,
1766                                  unsigned long port,
1767                                  unsigned long mpu_port,
1768                                  unsigned long fm_port,
1769                                  int irq, int dma1, int dma2)
1770 {
1771         struct snd_es18xx *chip = card->private_data;
1772         static struct snd_device_ops ops = {
1773                 .dev_free =     snd_es18xx_dev_free,
1774         };
1775         int err;
1776 
1777         spin_lock_init(&chip->reg_lock);
1778         spin_lock_init(&chip->mixer_lock);
1779         chip->port = port;
1780         chip->irq = -1;
1781         chip->dma1 = -1;
1782         chip->dma2 = -1;
1783         chip->audio2_vol = 0x00;
1784         chip->active = 0;
1785 
1786         chip->res_port = request_region(port, 16, "ES18xx");
1787         if (chip->res_port == NULL) {
1788                 snd_es18xx_free(card);
1789                 snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
1790                 return -EBUSY;
1791         }
1792 
1793         if (request_irq(irq, snd_es18xx_interrupt, 0, "ES18xx",
1794                         (void *) card)) {
1795                 snd_es18xx_free(card);
1796                 snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
1797                 return -EBUSY;
1798         }
1799         chip->irq = irq;
1800 
1801         if (request_dma(dma1, "ES18xx DMA 1")) {
1802                 snd_es18xx_free(card);
1803                 snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
1804                 return -EBUSY;
1805         }
1806         chip->dma1 = dma1;
1807 
1808         if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
1809                 snd_es18xx_free(card);
1810                 snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
1811                 return -EBUSY;
1812         }
1813         chip->dma2 = dma2;
1814 
1815         if (snd_es18xx_probe(chip, mpu_port, fm_port) < 0) {
1816                 snd_es18xx_free(card);
1817                 return -ENODEV;
1818         }
1819         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1820         if (err < 0) {
1821                 snd_es18xx_free(card);
1822                 return err;
1823         }
1824         return 0;
1825 }
1826 
1827 static int snd_es18xx_mixer(struct snd_card *card)
1828 {
1829         struct snd_es18xx *chip = card->private_data;
1830         int err;
1831         unsigned int idx;
1832 
1833         strcpy(card->mixername, chip->pcm->name);
1834 
1835         for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
1836                 struct snd_kcontrol *kctl;
1837                 kctl = snd_ctl_new1(&snd_es18xx_base_controls[idx], chip);
1838                 if (chip->caps & ES18XX_HWV) {
1839                         switch (idx) {
1840                         case 0:
1841                                 chip->master_volume = kctl;
1842                                 kctl->private_free = snd_es18xx_hwv_free;
1843                                 break;
1844                         case 1:
1845                                 chip->master_switch = kctl;
1846                                 kctl->private_free = snd_es18xx_hwv_free;
1847                                 break;
1848                         }
1849                 }
1850                 if ((err = snd_ctl_add(card, kctl)) < 0)
1851                         return err;
1852         }
1853         if (chip->caps & ES18XX_PCM2) {
1854                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm2_controls); idx++) {
1855                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm2_controls[idx], chip))) < 0)
1856                                 return err;
1857                 } 
1858         } else {
1859                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_pcm1_controls); idx++) {
1860                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_pcm1_controls[idx], chip))) < 0)
1861                                 return err;
1862                 }
1863         }
1864 
1865         if (chip->caps & ES18XX_RECMIX) {
1866                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_recmix_controls); idx++) {
1867                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_recmix_controls[idx], chip))) < 0)
1868                                 return err;
1869                 }
1870         }
1871         switch (chip->version) {
1872         default:
1873                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre1_control, chip))) < 0)
1874                         return err;
1875                 break;
1876         case 0x1869:
1877         case 0x1879:
1878                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_micpre2_control, chip))) < 0)
1879                         return err;
1880                 break;
1881         }
1882         if (chip->caps & ES18XX_SPATIALIZER) {
1883                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_spatializer_controls); idx++) {
1884                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_spatializer_controls[idx], chip))) < 0)
1885                                 return err;
1886                 }
1887         }
1888         if (chip->caps & ES18XX_HWV) {
1889                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_hw_volume_controls); idx++) {
1890                         struct snd_kcontrol *kctl;
1891                         kctl = snd_ctl_new1(&snd_es18xx_hw_volume_controls[idx], chip);
1892                         if (idx == 0)
1893                                 chip->hw_volume = kctl;
1894                         else
1895                                 chip->hw_switch = kctl;
1896                         kctl->private_free = snd_es18xx_hwv_free;
1897                         if ((err = snd_ctl_add(card, kctl)) < 0)
1898                                 return err;
1899                         
1900                 }
1901         }
1902         /* finish initializing other chipset specific controls
1903          */
1904         if (chip->version != 0x1868) {
1905                 err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_speaker,
1906                                                      chip));
1907                 if (err < 0)
1908                         return err;
1909         }
1910         if (chip->version == 0x1869) {
1911                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1869); idx++) {
1912                         err = snd_ctl_add(card,
1913                                           snd_ctl_new1(&snd_es18xx_opt_1869[idx],
1914                                                        chip));
1915                         if (err < 0)
1916                                 return err;
1917                 }
1918         } else if (chip->version == 0x1878) {
1919                 err = snd_ctl_add(card, snd_ctl_new1(&snd_es18xx_opt_1878,
1920                                                      chip));
1921                 if (err < 0)
1922                         return err;
1923         } else if (chip->version == 0x1879) {
1924                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_1879); idx++) {
1925                         err = snd_ctl_add(card,
1926                                           snd_ctl_new1(&snd_es18xx_opt_1879[idx],
1927                                                        chip));
1928                         if (err < 0)
1929                                 return err;
1930                 }
1931         }
1932         if (chip->caps & ES18XX_GPO_2BIT) {
1933                 for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_opt_gpo_2bit); idx++) {
1934                         err = snd_ctl_add(card,
1935                                           snd_ctl_new1(&snd_es18xx_opt_gpo_2bit[idx],
1936                                                        chip));
1937                         if (err < 0)
1938                                 return err;
1939                 }
1940         }
1941         return 0;
1942 }
1943        
1944 
1945 /* Card level */
1946 
1947 MODULE_AUTHOR("Christian Fischbach <fishbach@pool.informatik.rwth-aachen.de>, Abramo Bagnara <abramo@alsa-project.org>");  
1948 MODULE_DESCRIPTION("ESS ES18xx AudioDrive");
1949 MODULE_LICENSE("GPL");
1950 MODULE_SUPPORTED_DEVICE("{{ESS,ES1868 PnP AudioDrive},"
1951                 "{ESS,ES1869 PnP AudioDrive},"
1952                 "{ESS,ES1878 PnP AudioDrive},"
1953                 "{ESS,ES1879 PnP AudioDrive},"
1954                 "{ESS,ES1887 PnP AudioDrive},"
1955                 "{ESS,ES1888 PnP AudioDrive},"
1956                 "{ESS,ES1887 AudioDrive},"
1957                 "{ESS,ES1888 AudioDrive}}");
1958 
1959 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
1960 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
1961 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
1962 #ifdef CONFIG_PNP
1963 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
1964 #endif
1965 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260,0x280 */
1966 #ifndef CONFIG_PNP
1967 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
1968 #else
1969 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1970 #endif
1971 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
1972 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
1973 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1974 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
1975 
1976 module_param_array(index, int, NULL, 0444);
1977 MODULE_PARM_DESC(index, "Index value for ES18xx soundcard.");
1978 module_param_array(id, charp, NULL, 0444);
1979 MODULE_PARM_DESC(id, "ID string for ES18xx soundcard.");
1980 module_param_array(enable, bool, NULL, 0444);
1981 MODULE_PARM_DESC(enable, "Enable ES18xx soundcard.");
1982 #ifdef CONFIG_PNP
1983 module_param_array(isapnp, bool, NULL, 0444);
1984 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
1985 #endif
1986 module_param_hw_array(port, long, ioport, NULL, 0444);
1987 MODULE_PARM_DESC(port, "Port # for ES18xx driver.");
1988 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
1989 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ES18xx driver.");
1990 module_param_hw_array(fm_port, long, ioport, NULL, 0444);
1991 MODULE_PARM_DESC(fm_port, "FM port # for ES18xx driver.");
1992 module_param_hw_array(irq, int, irq, NULL, 0444);
1993 MODULE_PARM_DESC(irq, "IRQ # for ES18xx driver.");
1994 module_param_hw_array(dma1, int, dma, NULL, 0444);
1995 MODULE_PARM_DESC(dma1, "DMA 1 # for ES18xx driver.");
1996 module_param_hw_array(dma2, int, dma, NULL, 0444);
1997 MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
1998 
1999 #ifdef CONFIG_PNP
2000 static int isa_registered;
2001 static int pnp_registered;
2002 static int pnpc_registered;
2003 
2004 static const struct pnp_device_id snd_audiodrive_pnpbiosids[] = {
2005         { .id = "ESS1869" },
2006         { .id = "ESS1879" },
2007         { .id = "" }            /* end */
2008 };
2009 
2010 MODULE_DEVICE_TABLE(pnp, snd_audiodrive_pnpbiosids);
2011 
2012 /* PnP main device initialization */
2013 static int snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
2014 {
2015         if (pnp_activate_dev(pdev) < 0) {
2016                 snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
2017                 return -EBUSY;
2018         }
2019         /* ok. hack using Vendor-Defined Card-Level registers */
2020         /* skip csn and logdev initialization - already done in isapnp_configure */
2021         if (pnp_device_is_isapnp(pdev)) {
2022                 isapnp_cfg_begin(isapnp_card_number(pdev), isapnp_csn_number(pdev));
2023                 isapnp_write_byte(0x27, pnp_irq(pdev, 0));      /* Hardware Volume IRQ Number */
2024                 if (mpu_port[dev] != SNDRV_AUTO_PORT)
2025                         isapnp_write_byte(0x28, pnp_irq(pdev, 0)); /* MPU-401 IRQ Number */
2026                 isapnp_write_byte(0x72, pnp_irq(pdev, 0));      /* second IRQ */
2027                 isapnp_cfg_end();
2028         }
2029         port[dev] = pnp_port_start(pdev, 0);
2030         fm_port[dev] = pnp_port_start(pdev, 1);
2031         mpu_port[dev] = pnp_port_start(pdev, 2);
2032         dma1[dev] = pnp_dma(pdev, 0);
2033         dma2[dev] = pnp_dma(pdev, 1);
2034         irq[dev] = pnp_irq(pdev, 0);
2035         snd_printdd("PnP ES18xx: port=0x%lx, fm port=0x%lx, mpu port=0x%lx\n", port[dev], fm_port[dev], mpu_port[dev]);
2036         snd_printdd("PnP ES18xx: dma1=%i, dma2=%i, irq=%i\n", dma1[dev], dma2[dev], irq[dev]);
2037         return 0;
2038 }
2039 
2040 static int snd_audiodrive_pnp(int dev, struct snd_es18xx *chip,
2041                               struct pnp_dev *pdev)
2042 {
2043         chip->dev = pdev;
2044         if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2045                 return -EBUSY;
2046         return 0;
2047 }
2048 
2049 static const struct pnp_card_device_id snd_audiodrive_pnpids[] = {
2050         /* ESS 1868 (integrated on Compaq dual P-Pro motherboard and Genius 18PnP 3D) */
2051         { .id = "ESS1868", .devs = { { "ESS1868" }, { "ESS0000" } } },
2052         /* ESS 1868 (integrated on Maxisound Cards) */
2053         { .id = "ESS1868", .devs = { { "ESS8601" }, { "ESS8600" } } },
2054         /* ESS 1868 (integrated on Maxisound Cards) */
2055         { .id = "ESS1868", .devs = { { "ESS8611" }, { "ESS8610" } } },
2056         /* ESS ES1869 Plug and Play AudioDrive */
2057         { .id = "ESS0003", .devs = { { "ESS1869" }, { "ESS0006" } } },
2058         /* ESS 1869 */
2059         { .id = "ESS1869", .devs = { { "ESS1869" }, { "ESS0006" } } },
2060         /* ESS 1878 */
2061         { .id = "ESS1878", .devs = { { "ESS1878" }, { "ESS0004" } } },
2062         /* ESS 1879 */
2063         { .id = "ESS1879", .devs = { { "ESS1879" }, { "ESS0009" } } },
2064         /* --- */
2065         { .id = "" } /* end */
2066 };
2067 
2068 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
2069 
2070 static int snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip,
2071                                struct pnp_card_link *card,
2072                                const struct pnp_card_device_id *id)
2073 {
2074         chip->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
2075         if (chip->dev == NULL)
2076                 return -EBUSY;
2077 
2078         chip->devc = pnp_request_card_device(card, id->devs[1].id, NULL);
2079         if (chip->devc == NULL)
2080                 return -EBUSY;
2081 
2082         /* Control port initialization */
2083         if (pnp_activate_dev(chip->devc) < 0) {
2084                 snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
2085                 return -EAGAIN;
2086         }
2087         snd_printdd("pnp: port=0x%llx\n",
2088                         (unsigned long long)pnp_port_start(chip->devc, 0));
2089         if (snd_audiodrive_pnp_init_main(dev, chip->dev) < 0)
2090                 return -EBUSY;
2091 
2092         return 0;
2093 }
2094 #endif /* CONFIG_PNP */
2095 
2096 #ifdef CONFIG_PNP
2097 #define is_isapnp_selected(dev)         isapnp[dev]
2098 #else
2099 #define is_isapnp_selected(dev)         0
2100 #endif
2101 
2102 static int snd_es18xx_card_new(struct device *pdev, int dev,
2103                                struct snd_card **cardp)
2104 {
2105         return snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
2106                             sizeof(struct snd_es18xx), cardp);
2107 }
2108 
2109 static int snd_audiodrive_probe(struct snd_card *card, int dev)
2110 {
2111         struct snd_es18xx *chip = card->private_data;
2112         struct snd_opl3 *opl3;
2113         int err;
2114 
2115         err = snd_es18xx_new_device(card,
2116                                     port[dev], mpu_port[dev], fm_port[dev],
2117                                     irq[dev], dma1[dev], dma2[dev]);
2118         if (err < 0)
2119                 return err;
2120 
2121         sprintf(card->driver, "ES%x", chip->version);
2122         
2123         sprintf(card->shortname, "ESS AudioDrive ES%x", chip->version);
2124         if (dma1[dev] != dma2[dev])
2125                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma1 %d, dma2 %d",
2126                         card->shortname,
2127                         chip->port,
2128                         irq[dev], dma1[dev], dma2[dev]);
2129         else
2130                 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
2131                         card->shortname,
2132                         chip->port,
2133                         irq[dev], dma1[dev]);
2134 
2135         err = snd_es18xx_pcm(card, 0);
2136         if (err < 0)
2137                 return err;
2138 
2139         err = snd_es18xx_mixer(card);
2140         if (err < 0)
2141                 return err;
2142 
2143         if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
2144                 if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
2145                                     OPL3_HW_OPL3, 0, &opl3) < 0) {
2146                         snd_printk(KERN_WARNING PFX
2147                                    "opl3 not detected at 0x%lx\n",
2148                                    fm_port[dev]);
2149                 } else {
2150                         err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
2151                         if (err < 0)
2152                                 return err;
2153                 }
2154         }
2155 
2156         if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
2157                 err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES18XX,
2158                                           mpu_port[dev], MPU401_INFO_IRQ_HOOK,
2159                                           -1, &chip->rmidi);
2160                 if (err < 0)
2161                         return err;
2162         }
2163 
2164         return snd_card_register(card);
2165 }
2166 
2167 static int snd_es18xx_isa_match(struct device *pdev, unsigned int dev)
2168 {
2169         return enable[dev] && !is_isapnp_selected(dev);
2170 }
2171 
2172 static int snd_es18xx_isa_probe1(int dev, struct device *devptr)
2173 {
2174         struct snd_card *card;
2175         int err;
2176 
2177         err = snd_es18xx_card_new(devptr, dev, &card);
2178         if (err < 0)
2179                 return err;
2180         if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2181                 snd_card_free(card);
2182                 return err;
2183         }
2184         dev_set_drvdata(devptr, card);
2185         return 0;
2186 }
2187 
2188 static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
2189 {
2190         int err;
2191         static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
2192         static int possible_dmas[] = {1, 0, 3, 5, -1};
2193 
2194         if (irq[dev] == SNDRV_AUTO_IRQ) {
2195                 if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
2196                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
2197                         return -EBUSY;
2198                 }
2199         }
2200         if (dma1[dev] == SNDRV_AUTO_DMA) {
2201                 if ((dma1[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2202                         snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
2203                         return -EBUSY;
2204                 }
2205         }
2206         if (dma2[dev] == SNDRV_AUTO_DMA) {
2207                 if ((dma2[dev] = snd_legacy_find_free_dma(possible_dmas)) < 0) {
2208                         snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
2209                         return -EBUSY;
2210                 }
2211         }
2212 
2213         if (port[dev] != SNDRV_AUTO_PORT) {
2214                 return snd_es18xx_isa_probe1(dev, pdev);
2215         } else {
2216                 static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280};
2217                 int i;
2218                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
2219                         port[dev] = possible_ports[i];
2220                         err = snd_es18xx_isa_probe1(dev, pdev);
2221                         if (! err)
2222                                 return 0;
2223                 }
2224                 return err;
2225         }
2226 }
2227 
2228 static int snd_es18xx_isa_remove(struct device *devptr,
2229                                  unsigned int dev)
2230 {
2231         snd_card_free(dev_get_drvdata(devptr));
2232         return 0;
2233 }
2234 
2235 #ifdef CONFIG_PM
2236 static int snd_es18xx_isa_suspend(struct device *dev, unsigned int n,
2237                                   pm_message_t state)
2238 {
2239         return snd_es18xx_suspend(dev_get_drvdata(dev), state);
2240 }
2241 
2242 static int snd_es18xx_isa_resume(struct device *dev, unsigned int n)
2243 {
2244         return snd_es18xx_resume(dev_get_drvdata(dev));
2245 }
2246 #endif
2247 
2248 #define DEV_NAME "es18xx"
2249 
2250 static struct isa_driver snd_es18xx_isa_driver = {
2251         .match          = snd_es18xx_isa_match,
2252         .probe          = snd_es18xx_isa_probe,
2253         .remove         = snd_es18xx_isa_remove,
2254 #ifdef CONFIG_PM
2255         .suspend        = snd_es18xx_isa_suspend,
2256         .resume         = snd_es18xx_isa_resume,
2257 #endif
2258         .driver         = {
2259                 .name   = DEV_NAME
2260         },
2261 };
2262 
2263 
2264 #ifdef CONFIG_PNP
2265 static int snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
2266                                      const struct pnp_device_id *id)
2267 {
2268         static int dev;
2269         int err;
2270         struct snd_card *card;
2271 
2272         if (pnp_device_is_isapnp(pdev))
2273                 return -ENOENT; /* we have another procedure - card */
2274         for (; dev < SNDRV_CARDS; dev++) {
2275                 if (enable[dev] && isapnp[dev])
2276                         break;
2277         }
2278         if (dev >= SNDRV_CARDS)
2279                 return -ENODEV;
2280 
2281         err = snd_es18xx_card_new(&pdev->dev, dev, &card);
2282         if (err < 0)
2283                 return err;
2284         if ((err = snd_audiodrive_pnp(dev, card->private_data, pdev)) < 0) {
2285                 snd_card_free(card);
2286                 return err;
2287         }
2288         if ((err = snd_audiodrive_probe(card, dev)) < 0) {
2289                 snd_card_free(card);
2290                 return err;
2291         }
2292         pnp_set_drvdata(pdev, card);
2293         dev++;
2294         return 0;
2295 }
2296 
2297 static void snd_audiodrive_pnp_remove(struct pnp_dev *pdev)
2298 {
2299         snd_card_free(pnp_get_drvdata(pdev));
2300 }
2301 
2302 #ifdef CONFIG_PM
2303 static int snd_audiodrive_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
2304 {
2305         return snd_es18xx_suspend(pnp_get_drvdata(pdev), state);
2306 }
2307 static int snd_audiodrive_pnp_resume(struct pnp_dev *pdev)
2308 {
2309         return snd_es18xx_resume(pnp_get_drvdata(pdev));
2310 }
2311 #endif
2312 
2313 static struct pnp_driver es18xx_pnp_driver = {
2314         .name = "es18xx-pnpbios",
2315         .id_table = snd_audiodrive_pnpbiosids,
2316         .probe = snd_audiodrive_pnp_detect,
2317         .remove = snd_audiodrive_pnp_remove,
2318 #ifdef CONFIG_PM
2319         .suspend = snd_audiodrive_pnp_suspend,
2320         .resume = snd_audiodrive_pnp_resume,
2321 #endif
2322 };
2323 
2324 static int snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
2325                                       const struct pnp_card_device_id *pid)
2326 {
2327         static int dev;
2328         struct snd_card *card;
2329         int res;
2330 
2331         for ( ; dev < SNDRV_CARDS; dev++) {
2332                 if (enable[dev] && isapnp[dev])
2333                         break;
2334         }
2335         if (dev >= SNDRV_CARDS)
2336                 return -ENODEV;
2337 
2338         res = snd_es18xx_card_new(&pcard->card->dev, dev, &card);
2339         if (res < 0)
2340                 return res;
2341 
2342         if ((res = snd_audiodrive_pnpc(dev, card->private_data, pcard, pid)) < 0) {
2343                 snd_card_free(card);
2344                 return res;
2345         }
2346         if ((res = snd_audiodrive_probe(card, dev)) < 0) {
2347                 snd_card_free(card);
2348                 return res;
2349         }
2350 
2351         pnp_set_card_drvdata(pcard, card);
2352         dev++;
2353         return 0;
2354 }
2355 
2356 static void snd_audiodrive_pnpc_remove(struct pnp_card_link *pcard)
2357 {
2358         snd_card_free(pnp_get_card_drvdata(pcard));
2359         pnp_set_card_drvdata(pcard, NULL);
2360 }
2361 
2362 #ifdef CONFIG_PM
2363 static int snd_audiodrive_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state)
2364 {
2365         return snd_es18xx_suspend(pnp_get_card_drvdata(pcard), state);
2366 }
2367 
2368 static int snd_audiodrive_pnpc_resume(struct pnp_card_link *pcard)
2369 {
2370         return snd_es18xx_resume(pnp_get_card_drvdata(pcard));
2371 }
2372 
2373 #endif
2374 
2375 static struct pnp_card_driver es18xx_pnpc_driver = {
2376         .flags = PNP_DRIVER_RES_DISABLE,
2377         .name = "es18xx",
2378         .id_table = snd_audiodrive_pnpids,
2379         .probe = snd_audiodrive_pnpc_detect,
2380         .remove = snd_audiodrive_pnpc_remove,
2381 #ifdef CONFIG_PM
2382         .suspend        = snd_audiodrive_pnpc_suspend,
2383         .resume         = snd_audiodrive_pnpc_resume,
2384 #endif
2385 };
2386 #endif /* CONFIG_PNP */
2387 
2388 static int __init alsa_card_es18xx_init(void)
2389 {
2390         int err;
2391 
2392         err = isa_register_driver(&snd_es18xx_isa_driver, SNDRV_CARDS);
2393 #ifdef CONFIG_PNP
2394         if (!err)
2395                 isa_registered = 1;
2396 
2397         err = pnp_register_driver(&es18xx_pnp_driver);
2398         if (!err)
2399                 pnp_registered = 1;
2400 
2401         err = pnp_register_card_driver(&es18xx_pnpc_driver);
2402         if (!err)
2403                 pnpc_registered = 1;
2404 
2405         if (isa_registered || pnp_registered)
2406                 err = 0;
2407 #endif
2408         return err;
2409 }
2410 
2411 static void __exit alsa_card_es18xx_exit(void)
2412 {
2413 #ifdef CONFIG_PNP
2414         if (pnpc_registered)
2415                 pnp_unregister_card_driver(&es18xx_pnpc_driver);
2416         if (pnp_registered)
2417                 pnp_unregister_driver(&es18xx_pnp_driver);
2418         if (isa_registered)
2419 #endif
2420                 isa_unregister_driver(&snd_es18xx_isa_driver);
2421 }
2422 
2423 module_init(alsa_card_es18xx_init)
2424 module_exit(alsa_card_es18xx_exit)
2425 

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