[ALSA] Fix section mismatch errors in ALSA PCI drivers
[linux-2.6.git] / sound / pci / es1938.c
1 /*
2  *  Driver for ESS Solo-1 (ES1938, ES1946, ES1969) soundcard
3  *  Copyright (c) by Jaromir Koutek <miri@punknet.cz>,
4  *                   Jaroslav Kysela <perex@suse.cz>,
5  *                   Thomas Sailer <sailer@ife.ee.ethz.ch>,
6  *                   Abramo Bagnara <abramo@alsa-project.org>,
7  *                   Markus Gruber <gruber@eikon.tum.de>
8  * 
9  * Rewritten from sonicvibes.c source.
10  *
11  *  TODO:
12  *    Rewrite better spinlocks
13  *
14  *
15  *   This program is free software; you can redistribute it and/or modify
16  *   it under the terms of the GNU General Public License as published by
17  *   the Free Software Foundation; either version 2 of the License, or
18  *   (at your option) any later version.
19  *
20  *   This program is distributed in the hope that it will be useful,
21  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
22  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23  *   GNU General Public License for more details.
24  *
25  *   You should have received a copy of the GNU General Public License
26  *   along with this program; if not, write to the Free Software
27  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
28  *
29  */
30
31 /*
32   NOTES:
33   - Capture data is written unaligned starting from dma_base + 1 so I need to
34     disable mmap and to add a copy callback.
35   - After several cycle of the following:
36     while : ; do arecord -d1 -f cd -t raw | aplay -f cd ; done
37     a "playback write error (DMA or IRQ trouble?)" may happen.
38     This is due to playback interrupts not generated.
39     I suspect a timing issue.
40   - Sometimes the interrupt handler is invoked wrongly during playback.
41     This generates some harmless "Unexpected hw_pointer: wrong interrupt
42     acknowledge".
43     I've seen that using small period sizes.
44     Reproducible with:
45     mpg123 test.mp3 &
46     hdparm -t -T /dev/hda
47 */
48
49
50 #include <sound/driver.h>
51 #include <linux/init.h>
52 #include <linux/interrupt.h>
53 #include <linux/pci.h>
54 #include <linux/slab.h>
55 #include <linux/gameport.h>
56 #include <linux/moduleparam.h>
57 #include <linux/delay.h>
58 #include <linux/dma-mapping.h>
59 #include <sound/core.h>
60 #include <sound/control.h>
61 #include <sound/pcm.h>
62 #include <sound/opl3.h>
63 #include <sound/mpu401.h>
64 #include <sound/initval.h>
65
66 #include <asm/io.h>
67
68 MODULE_AUTHOR("Jaromir Koutek <miri@punknet.cz>");
69 MODULE_DESCRIPTION("ESS Solo-1");
70 MODULE_LICENSE("GPL");
71 MODULE_SUPPORTED_DEVICE("{{ESS,ES1938},"
72                 "{ESS,ES1946},"
73                 "{ESS,ES1969},"
74                 "{TerraTec,128i PCI}}");
75
76 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
77 #define SUPPORT_JOYSTICK 1
78 #endif
79
80 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
81 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
82 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
83
84 module_param_array(index, int, NULL, 0444);
85 MODULE_PARM_DESC(index, "Index value for ESS Solo-1 soundcard.");
86 module_param_array(id, charp, NULL, 0444);
87 MODULE_PARM_DESC(id, "ID string for ESS Solo-1 soundcard.");
88 module_param_array(enable, bool, NULL, 0444);
89 MODULE_PARM_DESC(enable, "Enable ESS Solo-1 soundcard.");
90
91 #define SLIO_REG(chip, x) ((chip)->io_port + ESSIO_REG_##x)
92
93 #define SLDM_REG(chip, x) ((chip)->ddma_port + ESSDM_REG_##x)
94
95 #define SLSB_REG(chip, x) ((chip)->sb_port + ESSSB_REG_##x)
96
97 #define SL_PCI_LEGACYCONTROL            0x40
98 #define SL_PCI_CONFIG                   0x50
99 #define SL_PCI_DDMACONTROL              0x60
100
101 #define ESSIO_REG_AUDIO2DMAADDR         0
102 #define ESSIO_REG_AUDIO2DMACOUNT        4
103 #define ESSIO_REG_AUDIO2MODE            6
104 #define ESSIO_REG_IRQCONTROL            7
105
106 #define ESSDM_REG_DMAADDR               0x00
107 #define ESSDM_REG_DMACOUNT              0x04
108 #define ESSDM_REG_DMACOMMAND            0x08
109 #define ESSDM_REG_DMASTATUS             0x08
110 #define ESSDM_REG_DMAMODE               0x0b
111 #define ESSDM_REG_DMACLEAR              0x0d
112 #define ESSDM_REG_DMAMASK               0x0f
113
114 #define ESSSB_REG_FMLOWADDR             0x00
115 #define ESSSB_REG_FMHIGHADDR            0x02
116 #define ESSSB_REG_MIXERADDR             0x04
117 #define ESSSB_REG_MIXERDATA             0x05
118
119 #define ESSSB_IREG_AUDIO1               0x14
120 #define ESSSB_IREG_MICMIX               0x1a
121 #define ESSSB_IREG_RECSRC               0x1c
122 #define ESSSB_IREG_MASTER               0x32
123 #define ESSSB_IREG_FM                   0x36
124 #define ESSSB_IREG_AUXACD               0x38
125 #define ESSSB_IREG_AUXB                 0x3a
126 #define ESSSB_IREG_PCSPEAKER            0x3c
127 #define ESSSB_IREG_LINE                 0x3e
128 #define ESSSB_IREG_SPATCONTROL          0x50
129 #define ESSSB_IREG_SPATLEVEL            0x52
130 #define ESSSB_IREG_MASTER_LEFT          0x60
131 #define ESSSB_IREG_MASTER_RIGHT         0x62
132 #define ESSSB_IREG_MPU401CONTROL        0x64
133 #define ESSSB_IREG_MICMIXRECORD         0x68
134 #define ESSSB_IREG_AUDIO2RECORD         0x69
135 #define ESSSB_IREG_AUXACDRECORD         0x6a
136 #define ESSSB_IREG_FMRECORD             0x6b
137 #define ESSSB_IREG_AUXBRECORD           0x6c
138 #define ESSSB_IREG_MONO                 0x6d
139 #define ESSSB_IREG_LINERECORD           0x6e
140 #define ESSSB_IREG_MONORECORD           0x6f
141 #define ESSSB_IREG_AUDIO2SAMPLE         0x70
142 #define ESSSB_IREG_AUDIO2MODE           0x71
143 #define ESSSB_IREG_AUDIO2FILTER         0x72
144 #define ESSSB_IREG_AUDIO2TCOUNTL        0x74
145 #define ESSSB_IREG_AUDIO2TCOUNTH        0x76
146 #define ESSSB_IREG_AUDIO2CONTROL1       0x78
147 #define ESSSB_IREG_AUDIO2CONTROL2       0x7a
148 #define ESSSB_IREG_AUDIO2               0x7c
149
150 #define ESSSB_REG_RESET                 0x06
151
152 #define ESSSB_REG_READDATA              0x0a
153 #define ESSSB_REG_WRITEDATA             0x0c
154 #define ESSSB_REG_READSTATUS            0x0c
155
156 #define ESSSB_REG_STATUS                0x0e
157
158 #define ESS_CMD_EXTSAMPLERATE           0xa1
159 #define ESS_CMD_FILTERDIV               0xa2
160 #define ESS_CMD_DMACNTRELOADL           0xa4
161 #define ESS_CMD_DMACNTRELOADH           0xa5
162 #define ESS_CMD_ANALOGCONTROL           0xa8
163 #define ESS_CMD_IRQCONTROL              0xb1
164 #define ESS_CMD_DRQCONTROL              0xb2
165 #define ESS_CMD_RECLEVEL                0xb4
166 #define ESS_CMD_SETFORMAT               0xb6
167 #define ESS_CMD_SETFORMAT2              0xb7
168 #define ESS_CMD_DMACONTROL              0xb8
169 #define ESS_CMD_DMATYPE                 0xb9
170 #define ESS_CMD_OFFSETLEFT              0xba    
171 #define ESS_CMD_OFFSETRIGHT             0xbb
172 #define ESS_CMD_READREG                 0xc0
173 #define ESS_CMD_ENABLEEXT               0xc6
174 #define ESS_CMD_PAUSEDMA                0xd0
175 #define ESS_CMD_ENABLEAUDIO1            0xd1
176 #define ESS_CMD_STOPAUDIO1              0xd3
177 #define ESS_CMD_AUDIO1STATUS            0xd8
178 #define ESS_CMD_CONTDMA                 0xd4
179 #define ESS_CMD_TESTIRQ                 0xf2
180
181 #define ESS_RECSRC_MIC          0
182 #define ESS_RECSRC_AUXACD       2
183 #define ESS_RECSRC_AUXB         5
184 #define ESS_RECSRC_LINE         6
185 #define ESS_RECSRC_NONE         7
186
187 #define DAC1 0x01
188 #define ADC1 0x02
189 #define DAC2 0x04
190
191 /*
192
193  */
194
195 #define SAVED_REG_SIZE  32 /* max. number of registers to save */
196
197 struct es1938 {
198         int irq;
199
200         unsigned long io_port;
201         unsigned long sb_port;
202         unsigned long vc_port;
203         unsigned long mpu_port;
204         unsigned long game_port;
205         unsigned long ddma_port;
206
207         unsigned char irqmask;
208         unsigned char revision;
209
210         struct snd_kcontrol *hw_volume;
211         struct snd_kcontrol *hw_switch;
212         struct snd_kcontrol *master_volume;
213         struct snd_kcontrol *master_switch;
214
215         struct pci_dev *pci;
216         struct snd_card *card;
217         struct snd_pcm *pcm;
218         struct snd_pcm_substream *capture_substream;
219         struct snd_pcm_substream *playback1_substream;
220         struct snd_pcm_substream *playback2_substream;
221         struct snd_rawmidi *rmidi;
222
223         unsigned int dma1_size;
224         unsigned int dma2_size;
225         unsigned int dma1_start;
226         unsigned int dma2_start;
227         unsigned int dma1_shift;
228         unsigned int dma2_shift;
229         unsigned int active;
230
231         spinlock_t reg_lock;
232         spinlock_t mixer_lock;
233         struct snd_info_entry *proc_entry;
234
235 #ifdef SUPPORT_JOYSTICK
236         struct gameport *gameport;
237 #endif
238 #ifdef CONFIG_PM
239         unsigned char saved_regs[SAVED_REG_SIZE];
240 #endif
241 };
242
243 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id, struct pt_regs *regs);
244
245 static struct pci_device_id snd_es1938_ids[] = {
246         { 0x125d, 0x1969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Solo-1 */
247         { 0, }
248 };
249
250 MODULE_DEVICE_TABLE(pci, snd_es1938_ids);
251
252 #define RESET_LOOP_TIMEOUT      0x10000
253 #define WRITE_LOOP_TIMEOUT      0x10000
254 #define GET_LOOP_TIMEOUT        0x01000
255
256 #undef REG_DEBUG
257 /* -----------------------------------------------------------------
258  * Write to a mixer register
259  * -----------------------------------------------------------------*/
260 static void snd_es1938_mixer_write(struct es1938 *chip, unsigned char reg, unsigned char val)
261 {
262         unsigned long flags;
263         spin_lock_irqsave(&chip->mixer_lock, flags);
264         outb(reg, SLSB_REG(chip, MIXERADDR));
265         outb(val, SLSB_REG(chip, MIXERDATA));
266         spin_unlock_irqrestore(&chip->mixer_lock, flags);
267 #ifdef REG_DEBUG
268         snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, val);
269 #endif
270 }
271
272 /* -----------------------------------------------------------------
273  * Read from a mixer register
274  * -----------------------------------------------------------------*/
275 static int snd_es1938_mixer_read(struct es1938 *chip, unsigned char reg)
276 {
277         int data;
278         unsigned long flags;
279         spin_lock_irqsave(&chip->mixer_lock, flags);
280         outb(reg, SLSB_REG(chip, MIXERADDR));
281         data = inb(SLSB_REG(chip, MIXERDATA));
282         spin_unlock_irqrestore(&chip->mixer_lock, flags);
283 #ifdef REG_DEBUG
284         snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
285 #endif
286         return data;
287 }
288
289 /* -----------------------------------------------------------------
290  * Write to some bits of a mixer register (return old value)
291  * -----------------------------------------------------------------*/
292 static int snd_es1938_mixer_bits(struct es1938 *chip, unsigned char reg,
293                                  unsigned char mask, unsigned char val)
294 {
295         unsigned long flags;
296         unsigned char old, new, oval;
297         spin_lock_irqsave(&chip->mixer_lock, flags);
298         outb(reg, SLSB_REG(chip, MIXERADDR));
299         old = inb(SLSB_REG(chip, MIXERDATA));
300         oval = old & mask;
301         if (val != oval) {
302                 new = (old & ~mask) | (val & mask);
303                 outb(new, SLSB_REG(chip, MIXERDATA));
304 #ifdef REG_DEBUG
305                 snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
306                            reg, old, new);
307 #endif
308         }
309         spin_unlock_irqrestore(&chip->mixer_lock, flags);
310         return oval;
311 }
312
313 /* -----------------------------------------------------------------
314  * Write command to Controller Registers
315  * -----------------------------------------------------------------*/
316 static void snd_es1938_write_cmd(struct es1938 *chip, unsigned char cmd)
317 {
318         int i;
319         unsigned char v;
320         for (i = 0; i < WRITE_LOOP_TIMEOUT; i++) {
321                 if (!(v = inb(SLSB_REG(chip, READSTATUS)) & 0x80)) {
322                         outb(cmd, SLSB_REG(chip, WRITEDATA));
323                         return;
324                 }
325         }
326         printk(KERN_ERR "snd_es1938_write_cmd timeout (0x02%x/0x02%x)\n", cmd, v);
327 }
328
329 /* -----------------------------------------------------------------
330  * Read the Read Data Buffer
331  * -----------------------------------------------------------------*/
332 static int snd_es1938_get_byte(struct es1938 *chip)
333 {
334         int i;
335         unsigned char v;
336         for (i = GET_LOOP_TIMEOUT; i; i--)
337                 if ((v = inb(SLSB_REG(chip, STATUS))) & 0x80)
338                         return inb(SLSB_REG(chip, READDATA));
339         snd_printk(KERN_ERR "get_byte timeout: status 0x02%x\n", v);
340         return -ENODEV;
341 }
342
343 /* -----------------------------------------------------------------
344  * Write value cmd register
345  * -----------------------------------------------------------------*/
346 static void snd_es1938_write(struct es1938 *chip, unsigned char reg, unsigned char val)
347 {
348         unsigned long flags;
349         spin_lock_irqsave(&chip->reg_lock, flags);
350         snd_es1938_write_cmd(chip, reg);
351         snd_es1938_write_cmd(chip, val);
352         spin_unlock_irqrestore(&chip->reg_lock, flags);
353 #ifdef REG_DEBUG
354         snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, val);
355 #endif
356 }
357
358 /* -----------------------------------------------------------------
359  * Read data from cmd register and return it
360  * -----------------------------------------------------------------*/
361 static unsigned char snd_es1938_read(struct es1938 *chip, unsigned char reg)
362 {
363         unsigned char val;
364         unsigned long flags;
365         spin_lock_irqsave(&chip->reg_lock, flags);
366         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
367         snd_es1938_write_cmd(chip, reg);
368         val = snd_es1938_get_byte(chip);
369         spin_unlock_irqrestore(&chip->reg_lock, flags);
370 #ifdef REG_DEBUG
371         snd_printk(KERN_DEBUG "Reg %02x now is %02x\n", reg, val);
372 #endif
373         return val;
374 }
375
376 /* -----------------------------------------------------------------
377  * Write data to cmd register and return old value
378  * -----------------------------------------------------------------*/
379 static int snd_es1938_bits(struct es1938 *chip, unsigned char reg, unsigned char mask,
380                            unsigned char val)
381 {
382         unsigned long flags;
383         unsigned char old, new, oval;
384         spin_lock_irqsave(&chip->reg_lock, flags);
385         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
386         snd_es1938_write_cmd(chip, reg);
387         old = snd_es1938_get_byte(chip);
388         oval = old & mask;
389         if (val != oval) {
390                 snd_es1938_write_cmd(chip, reg);
391                 new = (old & ~mask) | (val & mask);
392                 snd_es1938_write_cmd(chip, new);
393 #ifdef REG_DEBUG
394                 snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x\n",
395                            reg, old, new);
396 #endif
397         }
398         spin_unlock_irqrestore(&chip->reg_lock, flags);
399         return oval;
400 }
401
402 /* --------------------------------------------------------------------
403  * Reset the chip
404  * --------------------------------------------------------------------*/
405 static void snd_es1938_reset(struct es1938 *chip)
406 {
407         int i;
408
409         outb(3, SLSB_REG(chip, RESET));
410         inb(SLSB_REG(chip, RESET));
411         outb(0, SLSB_REG(chip, RESET));
412         for (i = 0; i < RESET_LOOP_TIMEOUT; i++) {
413                 if (inb(SLSB_REG(chip, STATUS)) & 0x80) {
414                         if (inb(SLSB_REG(chip, READDATA)) == 0xaa)
415                                 goto __next;
416                 }
417         }
418         snd_printk(KERN_ERR "ESS Solo-1 reset failed\n");
419
420      __next:
421         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEEXT);
422
423         /* Demand transfer DMA: 4 bytes per DMA request */
424         snd_es1938_write(chip, ESS_CMD_DMATYPE, 2);
425
426         /* Change behaviour of register A1
427            4x oversampling
428            2nd channel DAC asynchronous */                                                      
429         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2MODE, 0x32);
430         /* enable/select DMA channel and IRQ channel */
431         snd_es1938_bits(chip, ESS_CMD_IRQCONTROL, 0xf0, 0x50);
432         snd_es1938_bits(chip, ESS_CMD_DRQCONTROL, 0xf0, 0x50);
433         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEAUDIO1);
434         /* Set spatializer parameters to recommended values */
435         snd_es1938_mixer_write(chip, 0x54, 0x8f);
436         snd_es1938_mixer_write(chip, 0x56, 0x95);
437         snd_es1938_mixer_write(chip, 0x58, 0x94);
438         snd_es1938_mixer_write(chip, 0x5a, 0x80);
439 }
440
441 /* --------------------------------------------------------------------
442  * Reset the FIFOs
443  * --------------------------------------------------------------------*/
444 static void snd_es1938_reset_fifo(struct es1938 *chip)
445 {
446         outb(2, SLSB_REG(chip, RESET));
447         outb(0, SLSB_REG(chip, RESET));
448 }
449
450 static struct snd_ratnum clocks[2] = {
451         {
452                 .num = 793800,
453                 .den_min = 1,
454                 .den_max = 128,
455                 .den_step = 1,
456         },
457         {
458                 .num = 768000,
459                 .den_min = 1,
460                 .den_max = 128,
461                 .den_step = 1,
462         }
463 };
464
465 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
466         .nrats = 2,
467         .rats = clocks,
468 };
469
470
471 static void snd_es1938_rate_set(struct es1938 *chip, 
472                                 struct snd_pcm_substream *substream,
473                                 int mode)
474 {
475         unsigned int bits, div0;
476         struct snd_pcm_runtime *runtime = substream->runtime;
477         if (runtime->rate_num == clocks[0].num)
478                 bits = 128 - runtime->rate_den;
479         else
480                 bits = 256 - runtime->rate_den;
481
482         /* set filter register */
483         div0 = 256 - 7160000*20/(8*82*runtime->rate);
484                 
485         if (mode == DAC2) {
486                 snd_es1938_mixer_write(chip, 0x70, bits);
487                 snd_es1938_mixer_write(chip, 0x72, div0);
488         } else {
489                 snd_es1938_write(chip, 0xA1, bits);
490                 snd_es1938_write(chip, 0xA2, div0);
491         }
492 }
493
494 /* --------------------------------------------------------------------
495  * Configure Solo1 builtin DMA Controller
496  * --------------------------------------------------------------------*/
497
498 static void snd_es1938_playback1_setdma(struct es1938 *chip)
499 {
500         outb(0x00, SLIO_REG(chip, AUDIO2MODE));
501         outl(chip->dma2_start, SLIO_REG(chip, AUDIO2DMAADDR));
502         outw(0, SLIO_REG(chip, AUDIO2DMACOUNT));
503         outw(chip->dma2_size, SLIO_REG(chip, AUDIO2DMACOUNT));
504 }
505
506 static void snd_es1938_playback2_setdma(struct es1938 *chip)
507 {
508         /* Enable DMA controller */
509         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
510         /* 1. Master reset */
511         outb(0, SLDM_REG(chip, DMACLEAR));
512         /* 2. Mask DMA */
513         outb(1, SLDM_REG(chip, DMAMASK));
514         outb(0x18, SLDM_REG(chip, DMAMODE));
515         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
516         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
517         /* 3. Unmask DMA */
518         outb(0, SLDM_REG(chip, DMAMASK));
519 }
520
521 static void snd_es1938_capture_setdma(struct es1938 *chip)
522 {
523         /* Enable DMA controller */
524         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
525         /* 1. Master reset */
526         outb(0, SLDM_REG(chip, DMACLEAR));
527         /* 2. Mask DMA */
528         outb(1, SLDM_REG(chip, DMAMASK));
529         outb(0x14, SLDM_REG(chip, DMAMODE));
530         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
531         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
532         /* 3. Unmask DMA */
533         outb(0, SLDM_REG(chip, DMAMASK));
534 }
535
536 /* ----------------------------------------------------------------------
537  *
538  *                           *** PCM part ***
539  */
540
541 static int snd_es1938_capture_trigger(struct snd_pcm_substream *substream,
542                                       int cmd)
543 {
544         struct es1938 *chip = snd_pcm_substream_chip(substream);
545         int val;
546         switch (cmd) {
547         case SNDRV_PCM_TRIGGER_START:
548         case SNDRV_PCM_TRIGGER_RESUME:
549                 val = 0x0f;
550                 chip->active |= ADC1;
551                 break;
552         case SNDRV_PCM_TRIGGER_STOP:
553         case SNDRV_PCM_TRIGGER_SUSPEND:
554                 val = 0x00;
555                 chip->active &= ~ADC1;
556                 break;
557         default:
558                 return -EINVAL;
559         }
560         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
561         return 0;
562 }
563
564 static int snd_es1938_playback1_trigger(struct snd_pcm_substream *substream,
565                                         int cmd)
566 {
567         struct es1938 *chip = snd_pcm_substream_chip(substream);
568         switch (cmd) {
569         case SNDRV_PCM_TRIGGER_START:
570         case SNDRV_PCM_TRIGGER_RESUME:
571                 /* According to the documentation this should be:
572                    0x13 but that value may randomly swap stereo channels */
573                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x92);
574                 udelay(10);
575                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x93);
576                 /* This two stage init gives the FIFO -> DAC connection time to
577                  * settle before first data from DMA flows in.  This should ensure
578                  * no swapping of stereo channels.  Report a bug if otherwise :-) */
579                 outb(0x0a, SLIO_REG(chip, AUDIO2MODE));
580                 chip->active |= DAC2;
581                 break;
582         case SNDRV_PCM_TRIGGER_STOP:
583         case SNDRV_PCM_TRIGGER_SUSPEND:
584                 outb(0, SLIO_REG(chip, AUDIO2MODE));
585                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0);
586                 chip->active &= ~DAC2;
587                 break;
588         default:
589                 return -EINVAL;
590         }
591         return 0;
592 }
593
594 static int snd_es1938_playback2_trigger(struct snd_pcm_substream *substream,
595                                         int cmd)
596 {
597         struct es1938 *chip = snd_pcm_substream_chip(substream);
598         int val;
599         switch (cmd) {
600         case SNDRV_PCM_TRIGGER_START:
601         case SNDRV_PCM_TRIGGER_RESUME:
602                 val = 5;
603                 chip->active |= DAC1;
604                 break;
605         case SNDRV_PCM_TRIGGER_STOP:
606         case SNDRV_PCM_TRIGGER_SUSPEND:
607                 val = 0;
608                 chip->active &= ~DAC1;
609                 break;
610         default:
611                 return -EINVAL;
612         }
613         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
614         return 0;
615 }
616
617 static int snd_es1938_playback_trigger(struct snd_pcm_substream *substream,
618                                        int cmd)
619 {
620         switch (substream->number) {
621         case 0:
622                 return snd_es1938_playback1_trigger(substream, cmd);
623         case 1:
624                 return snd_es1938_playback2_trigger(substream, cmd);
625         }
626         snd_BUG();
627         return -EINVAL;
628 }
629
630 /* --------------------------------------------------------------------
631  * First channel for Extended Mode Audio 1 ADC Operation
632  * --------------------------------------------------------------------*/
633 static int snd_es1938_capture_prepare(struct snd_pcm_substream *substream)
634 {
635         struct es1938 *chip = snd_pcm_substream_chip(substream);
636         struct snd_pcm_runtime *runtime = substream->runtime;
637         int u, is8, mono;
638         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
639         unsigned int count = snd_pcm_lib_period_bytes(substream);
640
641         chip->dma1_size = size;
642         chip->dma1_start = runtime->dma_addr;
643
644         mono = (runtime->channels > 1) ? 0 : 1;
645         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
646         u = snd_pcm_format_unsigned(runtime->format);
647
648         chip->dma1_shift = 2 - mono - is8;
649
650         snd_es1938_reset_fifo(chip);
651         
652         /* program type */
653         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
654
655         /* set clock and counters */
656         snd_es1938_rate_set(chip, substream, ADC1);
657
658         count = 0x10000 - count;
659         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
660         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
661
662         /* initialize and configure ADC */
663         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, u ? 0x51 : 0x71);
664         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 0x90 | 
665                        (u ? 0x00 : 0x20) | 
666                        (is8 ? 0x00 : 0x04) | 
667                        (mono ? 0x40 : 0x08));
668
669         //      snd_es1938_reset_fifo(chip);    
670
671         /* 11. configure system interrupt controller and DMA controller */
672         snd_es1938_capture_setdma(chip);
673
674         return 0;
675 }
676
677
678 /* ------------------------------------------------------------------------------
679  * Second Audio channel DAC Operation
680  * ------------------------------------------------------------------------------*/
681 static int snd_es1938_playback1_prepare(struct snd_pcm_substream *substream)
682 {
683         struct es1938 *chip = snd_pcm_substream_chip(substream);
684         struct snd_pcm_runtime *runtime = substream->runtime;
685         int u, is8, mono;
686         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
687         unsigned int count = snd_pcm_lib_period_bytes(substream);
688
689         chip->dma2_size = size;
690         chip->dma2_start = runtime->dma_addr;
691
692         mono = (runtime->channels > 1) ? 0 : 1;
693         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
694         u = snd_pcm_format_unsigned(runtime->format);
695
696         chip->dma2_shift = 2 - mono - is8;
697
698         snd_es1938_reset_fifo(chip);
699
700         /* set clock and counters */
701         snd_es1938_rate_set(chip, substream, DAC2);
702
703         count >>= 1;
704         count = 0x10000 - count;
705         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTL, count & 0xff);
706         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTH, count >> 8);
707
708         /* initialize and configure Audio 2 DAC */
709         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x40 | (u ? 0 : 4) |
710                                (mono ? 0 : 2) | (is8 ? 0 : 1));
711
712         /* program DMA */
713         snd_es1938_playback1_setdma(chip);
714         
715         return 0;
716 }
717
718 static int snd_es1938_playback2_prepare(struct snd_pcm_substream *substream)
719 {
720         struct es1938 *chip = snd_pcm_substream_chip(substream);
721         struct snd_pcm_runtime *runtime = substream->runtime;
722         int u, is8, mono;
723         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
724         unsigned int count = snd_pcm_lib_period_bytes(substream);
725
726         chip->dma1_size = size;
727         chip->dma1_start = runtime->dma_addr;
728
729         mono = (runtime->channels > 1) ? 0 : 1;
730         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
731         u = snd_pcm_format_unsigned(runtime->format);
732
733         chip->dma1_shift = 2 - mono - is8;
734
735         count = 0x10000 - count;
736  
737         /* reset */
738         snd_es1938_reset_fifo(chip);
739         
740         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
741
742         /* set clock and counters */
743         snd_es1938_rate_set(chip, substream, DAC1);
744         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
745         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
746
747         /* initialized and configure DAC */
748         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x80 : 0x00);
749         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x51 : 0x71);
750         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 
751                          0x90 | (mono ? 0x40 : 0x08) |
752                          (is8 ? 0x00 : 0x04) | (u ? 0x00 : 0x20));
753
754         /* program DMA */
755         snd_es1938_playback2_setdma(chip);
756         
757         return 0;
758 }
759
760 static int snd_es1938_playback_prepare(struct snd_pcm_substream *substream)
761 {
762         switch (substream->number) {
763         case 0:
764                 return snd_es1938_playback1_prepare(substream);
765         case 1:
766                 return snd_es1938_playback2_prepare(substream);
767         }
768         snd_BUG();
769         return -EINVAL;
770 }
771
772 static snd_pcm_uframes_t snd_es1938_capture_pointer(struct snd_pcm_substream *substream)
773 {
774         struct es1938 *chip = snd_pcm_substream_chip(substream);
775         size_t ptr;
776         size_t old, new;
777 #if 1
778         /* This stuff is *needed*, don't ask why - AB */
779         old = inw(SLDM_REG(chip, DMACOUNT));
780         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
781                 old = new;
782         ptr = chip->dma1_size - 1 - new;
783 #else
784         ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
785 #endif
786         return ptr >> chip->dma1_shift;
787 }
788
789 static snd_pcm_uframes_t snd_es1938_playback1_pointer(struct snd_pcm_substream *substream)
790 {
791         struct es1938 *chip = snd_pcm_substream_chip(substream);
792         size_t ptr;
793 #if 1
794         ptr = chip->dma2_size - inw(SLIO_REG(chip, AUDIO2DMACOUNT));
795 #else
796         ptr = inl(SLIO_REG(chip, AUDIO2DMAADDR)) - chip->dma2_start;
797 #endif
798         return ptr >> chip->dma2_shift;
799 }
800
801 static snd_pcm_uframes_t snd_es1938_playback2_pointer(struct snd_pcm_substream *substream)
802 {
803         struct es1938 *chip = snd_pcm_substream_chip(substream);
804         size_t ptr;
805         size_t old, new;
806 #if 1
807         /* This stuff is *needed*, don't ask why - AB */
808         old = inw(SLDM_REG(chip, DMACOUNT));
809         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
810                 old = new;
811         ptr = chip->dma1_size - 1 - new;
812 #else
813         ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
814 #endif
815         return ptr >> chip->dma1_shift;
816 }
817
818 static snd_pcm_uframes_t snd_es1938_playback_pointer(struct snd_pcm_substream *substream)
819 {
820         switch (substream->number) {
821         case 0:
822                 return snd_es1938_playback1_pointer(substream);
823         case 1:
824                 return snd_es1938_playback2_pointer(substream);
825         }
826         snd_BUG();
827         return -EINVAL;
828 }
829
830 static int snd_es1938_capture_copy(struct snd_pcm_substream *substream,
831                                    int channel,
832                                    snd_pcm_uframes_t pos,
833                                    void __user *dst,
834                                    snd_pcm_uframes_t count)
835 {
836         struct snd_pcm_runtime *runtime = substream->runtime;
837         struct es1938 *chip = snd_pcm_substream_chip(substream);
838         pos <<= chip->dma1_shift;
839         count <<= chip->dma1_shift;
840         snd_assert(pos + count <= chip->dma1_size, return -EINVAL);
841         if (pos + count < chip->dma1_size) {
842                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
843                         return -EFAULT;
844         } else {
845                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
846                         return -EFAULT;
847                 if (put_user(runtime->dma_area[0], ((unsigned char __user *)dst) + count - 1))
848                         return -EFAULT;
849         }
850         return 0;
851 }
852
853 /*
854  * buffer management
855  */
856 static int snd_es1938_pcm_hw_params(struct snd_pcm_substream *substream,
857                                     struct snd_pcm_hw_params *hw_params)
858
859 {
860         int err;
861
862         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
863                 return err;
864         return 0;
865 }
866
867 static int snd_es1938_pcm_hw_free(struct snd_pcm_substream *substream)
868 {
869         return snd_pcm_lib_free_pages(substream);
870 }
871
872 /* ----------------------------------------------------------------------
873  * Audio1 Capture (ADC)
874  * ----------------------------------------------------------------------*/
875 static struct snd_pcm_hardware snd_es1938_capture =
876 {
877         .info =                 (SNDRV_PCM_INFO_INTERLEAVED |
878                                 SNDRV_PCM_INFO_BLOCK_TRANSFER),
879         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
880                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
881         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
882         .rate_min =             6000,
883         .rate_max =             48000,
884         .channels_min =         1,
885         .channels_max =         2,
886         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
887         .period_bytes_min =     64,
888         .period_bytes_max =     0x8000,
889         .periods_min =          1,
890         .periods_max =          1024,
891         .fifo_size =            256,
892 };
893
894 /* -----------------------------------------------------------------------
895  * Audio2 Playback (DAC)
896  * -----------------------------------------------------------------------*/
897 static struct snd_pcm_hardware snd_es1938_playback =
898 {
899         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
900                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
901                                  SNDRV_PCM_INFO_MMAP_VALID),
902         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
903                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
904         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
905         .rate_min =             6000,
906         .rate_max =             48000,
907         .channels_min =         1,
908         .channels_max =         2,
909         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
910         .period_bytes_min =     64,
911         .period_bytes_max =     0x8000,
912         .periods_min =          1,
913         .periods_max =          1024,
914         .fifo_size =            256,
915 };
916
917 static int snd_es1938_capture_open(struct snd_pcm_substream *substream)
918 {
919         struct es1938 *chip = snd_pcm_substream_chip(substream);
920         struct snd_pcm_runtime *runtime = substream->runtime;
921
922         if (chip->playback2_substream)
923                 return -EAGAIN;
924         chip->capture_substream = substream;
925         runtime->hw = snd_es1938_capture;
926         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
927                                       &hw_constraints_clocks);
928         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
929         return 0;
930 }
931
932 static int snd_es1938_playback_open(struct snd_pcm_substream *substream)
933 {
934         struct es1938 *chip = snd_pcm_substream_chip(substream);
935         struct snd_pcm_runtime *runtime = substream->runtime;
936
937         switch (substream->number) {
938         case 0:
939                 chip->playback1_substream = substream;
940                 break;
941         case 1:
942                 if (chip->capture_substream)
943                         return -EAGAIN;
944                 chip->playback2_substream = substream;
945                 break;
946         default:
947                 snd_BUG();
948                 return -EINVAL;
949         }
950         runtime->hw = snd_es1938_playback;
951         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
952                                       &hw_constraints_clocks);
953         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
954         return 0;
955 }
956
957 static int snd_es1938_capture_close(struct snd_pcm_substream *substream)
958 {
959         struct es1938 *chip = snd_pcm_substream_chip(substream);
960
961         chip->capture_substream = NULL;
962         return 0;
963 }
964
965 static int snd_es1938_playback_close(struct snd_pcm_substream *substream)
966 {
967         struct es1938 *chip = snd_pcm_substream_chip(substream);
968
969         switch (substream->number) {
970         case 0:
971                 chip->playback1_substream = NULL;
972                 break;
973         case 1:
974                 chip->playback2_substream = NULL;
975                 break;
976         default:
977                 snd_BUG();
978                 return -EINVAL;
979         }
980         return 0;
981 }
982
983 static struct snd_pcm_ops snd_es1938_playback_ops = {
984         .open =         snd_es1938_playback_open,
985         .close =        snd_es1938_playback_close,
986         .ioctl =        snd_pcm_lib_ioctl,
987         .hw_params =    snd_es1938_pcm_hw_params,
988         .hw_free =      snd_es1938_pcm_hw_free,
989         .prepare =      snd_es1938_playback_prepare,
990         .trigger =      snd_es1938_playback_trigger,
991         .pointer =      snd_es1938_playback_pointer,
992 };
993
994 static struct snd_pcm_ops snd_es1938_capture_ops = {
995         .open =         snd_es1938_capture_open,
996         .close =        snd_es1938_capture_close,
997         .ioctl =        snd_pcm_lib_ioctl,
998         .hw_params =    snd_es1938_pcm_hw_params,
999         .hw_free =      snd_es1938_pcm_hw_free,
1000         .prepare =      snd_es1938_capture_prepare,
1001         .trigger =      snd_es1938_capture_trigger,
1002         .pointer =      snd_es1938_capture_pointer,
1003         .copy =         snd_es1938_capture_copy,
1004 };
1005
1006 static int __devinit snd_es1938_new_pcm(struct es1938 *chip, int device)
1007 {
1008         struct snd_pcm *pcm;
1009         int err;
1010
1011         if ((err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm)) < 0)
1012                 return err;
1013         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1938_playback_ops);
1014         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1938_capture_ops);
1015         
1016         pcm->private_data = chip;
1017         pcm->info_flags = 0;
1018         strcpy(pcm->name, "ESS Solo-1");
1019
1020         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1021                                               snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1022
1023         chip->pcm = pcm;
1024         return 0;
1025 }
1026
1027 /* -------------------------------------------------------------------
1028  * 
1029  *                       *** Mixer part ***
1030  */
1031
1032 static int snd_es1938_info_mux(struct snd_kcontrol *kcontrol,
1033                                struct snd_ctl_elem_info *uinfo)
1034 {
1035         static char *texts[8] = {
1036                 "Mic", "Mic Master", "CD", "AOUT",
1037                 "Mic1", "Mix", "Line", "Master"
1038         };
1039
1040         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1041         uinfo->count = 1;
1042         uinfo->value.enumerated.items = 8;
1043         if (uinfo->value.enumerated.item > 7)
1044                 uinfo->value.enumerated.item = 7;
1045         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1046         return 0;
1047 }
1048
1049 static int snd_es1938_get_mux(struct snd_kcontrol *kcontrol,
1050                               struct snd_ctl_elem_value *ucontrol)
1051 {
1052         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1053         ucontrol->value.enumerated.item[0] = snd_es1938_mixer_read(chip, 0x1c) & 0x07;
1054         return 0;
1055 }
1056
1057 static int snd_es1938_put_mux(struct snd_kcontrol *kcontrol,
1058                               struct snd_ctl_elem_value *ucontrol)
1059 {
1060         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1061         unsigned char val = ucontrol->value.enumerated.item[0];
1062         
1063         if (val > 7)
1064                 return -EINVAL;
1065         return snd_es1938_mixer_bits(chip, 0x1c, 0x07, val) != val;
1066 }
1067
1068 static int snd_es1938_info_spatializer_enable(struct snd_kcontrol *kcontrol,
1069                                               struct snd_ctl_elem_info *uinfo)
1070 {
1071         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1072         uinfo->count = 1;
1073         uinfo->value.integer.min = 0;
1074         uinfo->value.integer.max = 1;
1075         return 0;
1076 }
1077
1078 static int snd_es1938_get_spatializer_enable(struct snd_kcontrol *kcontrol,
1079                                              struct snd_ctl_elem_value *ucontrol)
1080 {
1081         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1082         unsigned char val = snd_es1938_mixer_read(chip, 0x50);
1083         ucontrol->value.integer.value[0] = !!(val & 8);
1084         return 0;
1085 }
1086
1087 static int snd_es1938_put_spatializer_enable(struct snd_kcontrol *kcontrol,
1088                                              struct snd_ctl_elem_value *ucontrol)
1089 {
1090         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1091         unsigned char oval, nval;
1092         int change;
1093         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1094         oval = snd_es1938_mixer_read(chip, 0x50) & 0x0c;
1095         change = nval != oval;
1096         if (change) {
1097                 snd_es1938_mixer_write(chip, 0x50, nval & ~0x04);
1098                 snd_es1938_mixer_write(chip, 0x50, nval);
1099         }
1100         return change;
1101 }
1102
1103 static int snd_es1938_info_hw_volume(struct snd_kcontrol *kcontrol,
1104                                      struct snd_ctl_elem_info *uinfo)
1105 {
1106         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1107         uinfo->count = 2;
1108         uinfo->value.integer.min = 0;
1109         uinfo->value.integer.max = 63;
1110         return 0;
1111 }
1112
1113 static int snd_es1938_get_hw_volume(struct snd_kcontrol *kcontrol,
1114                                     struct snd_ctl_elem_value *ucontrol)
1115 {
1116         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1117         ucontrol->value.integer.value[0] = snd_es1938_mixer_read(chip, 0x61) & 0x3f;
1118         ucontrol->value.integer.value[1] = snd_es1938_mixer_read(chip, 0x63) & 0x3f;
1119         return 0;
1120 }
1121
1122 static int snd_es1938_info_hw_switch(struct snd_kcontrol *kcontrol,
1123                                      struct snd_ctl_elem_info *uinfo)
1124 {
1125         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1126         uinfo->count = 2;
1127         uinfo->value.integer.min = 0;
1128         uinfo->value.integer.max = 1;
1129         return 0;
1130 }
1131
1132 static int snd_es1938_get_hw_switch(struct snd_kcontrol *kcontrol,
1133                                     struct snd_ctl_elem_value *ucontrol)
1134 {
1135         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1136         ucontrol->value.integer.value[0] = !(snd_es1938_mixer_read(chip, 0x61) & 0x40);
1137         ucontrol->value.integer.value[1] = !(snd_es1938_mixer_read(chip, 0x63) & 0x40);
1138         return 0;
1139 }
1140
1141 static void snd_es1938_hwv_free(struct snd_kcontrol *kcontrol)
1142 {
1143         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1144         chip->master_volume = NULL;
1145         chip->master_switch = NULL;
1146         chip->hw_volume = NULL;
1147         chip->hw_switch = NULL;
1148 }
1149
1150 static int snd_es1938_reg_bits(struct es1938 *chip, unsigned char reg,
1151                                unsigned char mask, unsigned char val)
1152 {
1153         if (reg < 0xa0)
1154                 return snd_es1938_mixer_bits(chip, reg, mask, val);
1155         else
1156                 return snd_es1938_bits(chip, reg, mask, val);
1157 }
1158
1159 static int snd_es1938_reg_read(struct es1938 *chip, unsigned char reg)
1160 {
1161         if (reg < 0xa0)
1162                 return snd_es1938_mixer_read(chip, reg);
1163         else
1164                 return snd_es1938_read(chip, reg);
1165 }
1166
1167 #define ES1938_SINGLE(xname, xindex, reg, shift, mask, invert) \
1168 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1169   .info = snd_es1938_info_single, \
1170   .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1171   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1172
1173 static int snd_es1938_info_single(struct snd_kcontrol *kcontrol,
1174                                   struct snd_ctl_elem_info *uinfo)
1175 {
1176         int mask = (kcontrol->private_value >> 16) & 0xff;
1177
1178         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1179         uinfo->count = 1;
1180         uinfo->value.integer.min = 0;
1181         uinfo->value.integer.max = mask;
1182         return 0;
1183 }
1184
1185 static int snd_es1938_get_single(struct snd_kcontrol *kcontrol,
1186                                  struct snd_ctl_elem_value *ucontrol)
1187 {
1188         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1189         int reg = kcontrol->private_value & 0xff;
1190         int shift = (kcontrol->private_value >> 8) & 0xff;
1191         int mask = (kcontrol->private_value >> 16) & 0xff;
1192         int invert = (kcontrol->private_value >> 24) & 0xff;
1193         int val;
1194         
1195         val = snd_es1938_reg_read(chip, reg);
1196         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1197         if (invert)
1198                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1199         return 0;
1200 }
1201
1202 static int snd_es1938_put_single(struct snd_kcontrol *kcontrol,
1203                                  struct snd_ctl_elem_value *ucontrol)
1204 {
1205         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1206         int reg = kcontrol->private_value & 0xff;
1207         int shift = (kcontrol->private_value >> 8) & 0xff;
1208         int mask = (kcontrol->private_value >> 16) & 0xff;
1209         int invert = (kcontrol->private_value >> 24) & 0xff;
1210         unsigned char val;
1211         
1212         val = (ucontrol->value.integer.value[0] & mask);
1213         if (invert)
1214                 val = mask - val;
1215         mask <<= shift;
1216         val <<= shift;
1217         return snd_es1938_reg_bits(chip, reg, mask, val) != val;
1218 }
1219
1220 #define ES1938_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1221 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1222   .info = snd_es1938_info_double, \
1223   .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1224   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1225
1226 static int snd_es1938_info_double(struct snd_kcontrol *kcontrol,
1227                                   struct snd_ctl_elem_info *uinfo)
1228 {
1229         int mask = (kcontrol->private_value >> 24) & 0xff;
1230
1231         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1232         uinfo->count = 2;
1233         uinfo->value.integer.min = 0;
1234         uinfo->value.integer.max = mask;
1235         return 0;
1236 }
1237
1238 static int snd_es1938_get_double(struct snd_kcontrol *kcontrol,
1239                                  struct snd_ctl_elem_value *ucontrol)
1240 {
1241         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1242         int left_reg = kcontrol->private_value & 0xff;
1243         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1244         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1245         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1246         int mask = (kcontrol->private_value >> 24) & 0xff;
1247         int invert = (kcontrol->private_value >> 22) & 1;
1248         unsigned char left, right;
1249         
1250         left = snd_es1938_reg_read(chip, left_reg);
1251         if (left_reg != right_reg)
1252                 right = snd_es1938_reg_read(chip, right_reg);
1253         else
1254                 right = left;
1255         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1256         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1257         if (invert) {
1258                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1259                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1260         }
1261         return 0;
1262 }
1263
1264 static int snd_es1938_put_double(struct snd_kcontrol *kcontrol,
1265                                  struct snd_ctl_elem_value *ucontrol)
1266 {
1267         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1268         int left_reg = kcontrol->private_value & 0xff;
1269         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1270         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1271         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1272         int mask = (kcontrol->private_value >> 24) & 0xff;
1273         int invert = (kcontrol->private_value >> 22) & 1;
1274         int change;
1275         unsigned char val1, val2, mask1, mask2;
1276         
1277         val1 = ucontrol->value.integer.value[0] & mask;
1278         val2 = ucontrol->value.integer.value[1] & mask;
1279         if (invert) {
1280                 val1 = mask - val1;
1281                 val2 = mask - val2;
1282         }
1283         val1 <<= shift_left;
1284         val2 <<= shift_right;
1285         mask1 = mask << shift_left;
1286         mask2 = mask << shift_right;
1287         if (left_reg != right_reg) {
1288                 change = 0;
1289                 if (snd_es1938_reg_bits(chip, left_reg, mask1, val1) != val1)
1290                         change = 1;
1291                 if (snd_es1938_reg_bits(chip, right_reg, mask2, val2) != val2)
1292                         change = 1;
1293         } else {
1294                 change = (snd_es1938_reg_bits(chip, left_reg, mask1 | mask2, 
1295                                               val1 | val2) != (val1 | val2));
1296         }
1297         return change;
1298 }
1299
1300 static struct snd_kcontrol_new snd_es1938_controls[] = {
1301 ES1938_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1302 ES1938_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1303 {
1304         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1305         .name = "Hardware Master Playback Volume",
1306         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1307         .info = snd_es1938_info_hw_volume,
1308         .get = snd_es1938_get_hw_volume,
1309 },
1310 {
1311         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1312         .name = "Hardware Master Playback Switch",
1313         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1314         .info = snd_es1938_info_hw_switch,
1315         .get = snd_es1938_get_hw_switch,
1316 },
1317 ES1938_SINGLE("Hardware Volume Split", 0, 0x64, 7, 1, 0),
1318 ES1938_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1319 ES1938_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1320 ES1938_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1321 ES1938_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1322 ES1938_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1323 ES1938_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1324 ES1938_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1325 ES1938_SINGLE("PC Speaker Volume", 0, 0x3c, 0, 7, 0),
1326 ES1938_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1327 ES1938_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1328 {
1329         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1330         .name = "Capture Source",
1331         .info = snd_es1938_info_mux,
1332         .get = snd_es1938_get_mux,
1333         .put = snd_es1938_put_mux,
1334 },
1335 ES1938_DOUBLE("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1336 ES1938_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1337 ES1938_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1338 ES1938_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1339 ES1938_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1340 ES1938_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0),
1341 ES1938_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1342 ES1938_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0),
1343 ES1938_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1344 ES1938_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0),
1345 ES1938_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1346 {
1347         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1348         .name = "3D Control - Switch",
1349         .info = snd_es1938_info_spatializer_enable,
1350         .get = snd_es1938_get_spatializer_enable,
1351         .put = snd_es1938_put_spatializer_enable,
1352 },
1353 ES1938_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0)
1354 };
1355
1356
1357 /* ---------------------------------------------------------------------------- */
1358 /* ---------------------------------------------------------------------------- */
1359
1360 /*
1361  * initialize the chip - used by resume callback, too
1362  */
1363 static void snd_es1938_chip_init(struct es1938 *chip)
1364 {
1365         /* reset chip */
1366         snd_es1938_reset(chip);
1367
1368         /* configure native mode */
1369
1370         /* enable bus master */
1371         pci_set_master(chip->pci);
1372
1373         /* disable legacy audio */
1374         pci_write_config_word(chip->pci, SL_PCI_LEGACYCONTROL, 0x805f);
1375
1376         /* set DDMA base */
1377         pci_write_config_word(chip->pci, SL_PCI_DDMACONTROL, chip->ddma_port | 1);
1378
1379         /* set DMA/IRQ policy */
1380         pci_write_config_dword(chip->pci, SL_PCI_CONFIG, 0);
1381
1382         /* enable Audio 1, Audio 2, MPU401 IRQ and HW volume IRQ*/
1383         outb(0xf0, SLIO_REG(chip, IRQCONTROL));
1384
1385         /* reset DMA */
1386         outb(0, SLDM_REG(chip, DMACLEAR));
1387 }
1388
1389 #ifdef CONFIG_PM
1390 /*
1391  * PM support
1392  */
1393
1394 static unsigned char saved_regs[SAVED_REG_SIZE+1] = {
1395         0x14, 0x1a, 0x1c, 0x3a, 0x3c, 0x3e, 0x36, 0x38,
1396         0x50, 0x52, 0x60, 0x61, 0x62, 0x63, 0x64, 0x68,
1397         0x69, 0x6a, 0x6b, 0x6d, 0x6e, 0x6f, 0x7c, 0x7d,
1398         0xa8, 0xb4,
1399 };
1400
1401
1402 static int es1938_suspend(struct pci_dev *pci, pm_message_t state)
1403 {
1404         struct snd_card *card = pci_get_drvdata(pci);
1405         struct es1938 *chip = card->private_data;
1406         unsigned char *s, *d;
1407
1408         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1409         snd_pcm_suspend_all(chip->pcm);
1410
1411         /* save mixer-related registers */
1412         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++)
1413                 *d = snd_es1938_reg_read(chip, *s);
1414
1415         outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */
1416         if (chip->irq >= 0)
1417                 free_irq(chip->irq, chip);
1418         pci_disable_device(pci);
1419         pci_save_state(pci);
1420         return 0;
1421 }
1422
1423 static int es1938_resume(struct pci_dev *pci)
1424 {
1425         struct snd_card *card = pci_get_drvdata(pci);
1426         struct es1938 *chip = card->private_data;
1427         unsigned char *s, *d;
1428
1429         pci_restore_state(pci);
1430         pci_enable_device(pci);
1431         request_irq(pci->irq, snd_es1938_interrupt,
1432                     IRQF_DISABLED|IRQF_SHARED, "ES1938", chip);
1433         chip->irq = pci->irq;
1434         snd_es1938_chip_init(chip);
1435
1436         /* restore mixer-related registers */
1437         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++) {
1438                 if (*s < 0xa0)
1439                         snd_es1938_mixer_write(chip, *s, *d);
1440                 else
1441                         snd_es1938_write(chip, *s, *d);
1442         }
1443
1444         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1445         return 0;
1446 }
1447 #endif /* CONFIG_PM */
1448
1449 #ifdef SUPPORT_JOYSTICK
1450 static int __devinit snd_es1938_create_gameport(struct es1938 *chip)
1451 {
1452         struct gameport *gp;
1453
1454         chip->gameport = gp = gameport_allocate_port();
1455         if (!gp) {
1456                 printk(KERN_ERR "es1938: cannot allocate memory for gameport\n");
1457                 return -ENOMEM;
1458         }
1459
1460         gameport_set_name(gp, "ES1938");
1461         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1462         gameport_set_dev_parent(gp, &chip->pci->dev);
1463         gp->io = chip->game_port;
1464
1465         gameport_register_port(gp);
1466
1467         return 0;
1468 }
1469
1470 static void snd_es1938_free_gameport(struct es1938 *chip)
1471 {
1472         if (chip->gameport) {
1473                 gameport_unregister_port(chip->gameport);
1474                 chip->gameport = NULL;
1475         }
1476 }
1477 #else
1478 static inline int snd_es1938_create_gameport(struct es1938 *chip) { return -ENOSYS; }
1479 static inline void snd_es1938_free_gameport(struct es1938 *chip) { }
1480 #endif /* SUPPORT_JOYSTICK */
1481
1482 static int snd_es1938_free(struct es1938 *chip)
1483 {
1484         /* disable irqs */
1485         outb(0x00, SLIO_REG(chip, IRQCONTROL));
1486         if (chip->rmidi)
1487                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
1488
1489         snd_es1938_free_gameport(chip);
1490
1491         if (chip->irq >= 0)
1492                 free_irq(chip->irq, chip);
1493         pci_release_regions(chip->pci);
1494         pci_disable_device(chip->pci);
1495         kfree(chip);
1496         return 0;
1497 }
1498
1499 static int snd_es1938_dev_free(struct snd_device *device)
1500 {
1501         struct es1938 *chip = device->device_data;
1502         return snd_es1938_free(chip);
1503 }
1504
1505 static int __devinit snd_es1938_create(struct snd_card *card,
1506                                     struct pci_dev * pci,
1507                                     struct es1938 ** rchip)
1508 {
1509         struct es1938 *chip;
1510         int err;
1511         static struct snd_device_ops ops = {
1512                 .dev_free =     snd_es1938_dev_free,
1513         };
1514
1515         *rchip = NULL;
1516
1517         /* enable PCI device */
1518         if ((err = pci_enable_device(pci)) < 0)
1519                 return err;
1520         /* check, if we can restrict PCI DMA transfers to 24 bits */
1521         if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 ||
1522             pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) {
1523                 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
1524                 pci_disable_device(pci);
1525                 return -ENXIO;
1526         }
1527
1528         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1529         if (chip == NULL) {
1530                 pci_disable_device(pci);
1531                 return -ENOMEM;
1532         }
1533         spin_lock_init(&chip->reg_lock);
1534         spin_lock_init(&chip->mixer_lock);
1535         chip->card = card;
1536         chip->pci = pci;
1537         if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) {
1538                 kfree(chip);
1539                 pci_disable_device(pci);
1540                 return err;
1541         }
1542         chip->io_port = pci_resource_start(pci, 0);
1543         chip->sb_port = pci_resource_start(pci, 1);
1544         chip->vc_port = pci_resource_start(pci, 2);
1545         chip->mpu_port = pci_resource_start(pci, 3);
1546         chip->game_port = pci_resource_start(pci, 4);
1547         if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_DISABLED|IRQF_SHARED,
1548                         "ES1938", chip)) {
1549                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1550                 snd_es1938_free(chip);
1551                 return -EBUSY;
1552         }
1553         chip->irq = pci->irq;
1554 #ifdef ES1938_DDEBUG
1555         snd_printk(KERN_DEBUG "create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n",
1556                    chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port);
1557 #endif
1558
1559         chip->ddma_port = chip->vc_port + 0x00;         /* fix from Thomas Sailer */
1560
1561         snd_es1938_chip_init(chip);
1562
1563         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1564                 snd_es1938_free(chip);
1565                 return err;
1566         }
1567
1568         snd_card_set_dev(card, &pci->dev);
1569
1570         *rchip = chip;
1571         return 0;
1572 }
1573
1574 /* --------------------------------------------------------------------
1575  * Interrupt handler
1576  * -------------------------------------------------------------------- */
1577 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1578 {
1579         struct es1938 *chip = dev_id;
1580         unsigned char status, audiostatus;
1581         int handled = 0;
1582
1583         status = inb(SLIO_REG(chip, IRQCONTROL));
1584 #if 0
1585         printk("Es1938debug - interrupt status: =0x%x\n", status);
1586 #endif
1587         
1588         /* AUDIO 1 */
1589         if (status & 0x10) {
1590 #if 0
1591                 printk("Es1938debug - AUDIO channel 1 interrupt\n");
1592                 printk("Es1938debug - AUDIO channel 1 DMAC DMA count: %u\n",
1593                        inw(SLDM_REG(chip, DMACOUNT)));
1594                 printk("Es1938debug - AUDIO channel 1 DMAC DMA base: %u\n",
1595                        inl(SLDM_REG(chip, DMAADDR)));
1596                 printk("Es1938debug - AUDIO channel 1 DMAC DMA status: 0x%x\n",
1597                        inl(SLDM_REG(chip, DMASTATUS)));
1598 #endif
1599                 /* clear irq */
1600                 handled = 1;
1601                 audiostatus = inb(SLSB_REG(chip, STATUS));
1602                 if (chip->active & ADC1)
1603                         snd_pcm_period_elapsed(chip->capture_substream);
1604                 else if (chip->active & DAC1)
1605                         snd_pcm_period_elapsed(chip->playback2_substream);
1606         }
1607         
1608         /* AUDIO 2 */
1609         if (status & 0x20) {
1610 #if 0
1611                 printk("Es1938debug - AUDIO channel 2 interrupt\n");
1612                 printk("Es1938debug - AUDIO channel 2 DMAC DMA count: %u\n",
1613                        inw(SLIO_REG(chip, AUDIO2DMACOUNT)));
1614                 printk("Es1938debug - AUDIO channel 2 DMAC DMA base: %u\n",
1615                        inl(SLIO_REG(chip, AUDIO2DMAADDR)));
1616
1617 #endif
1618                 /* clear irq */
1619                 handled = 1;
1620                 snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
1621                 if (chip->active & DAC2)
1622                         snd_pcm_period_elapsed(chip->playback1_substream);
1623         }
1624
1625         /* Hardware volume */
1626         if (status & 0x40) {
1627                 int split = snd_es1938_mixer_read(chip, 0x64) & 0x80;
1628                 handled = 1;
1629                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
1630                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
1631                 if (!split) {
1632                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1633                                        &chip->master_switch->id);
1634                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1635                                        &chip->master_volume->id);
1636                 }
1637                 /* ack interrupt */
1638                 snd_es1938_mixer_write(chip, 0x66, 0x00);
1639         }
1640
1641         /* MPU401 */
1642         if (status & 0x80) {
1643                 // the following line is evil! It switches off MIDI interrupt handling after the first interrupt received.
1644                 // replacing the last 0 by 0x40 works for ESS-Solo1, but just doing nothing works as well!
1645                 // andreas@flying-snail.de
1646                 // snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0); /* ack? */
1647                 if (chip->rmidi) {
1648                         handled = 1;
1649                         snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1650                 }
1651         }
1652         return IRQ_RETVAL(handled);
1653 }
1654
1655 #define ES1938_DMA_SIZE 64
1656
1657 static int __devinit snd_es1938_mixer(struct es1938 *chip)
1658 {
1659         struct snd_card *card;
1660         unsigned int idx;
1661         int err;
1662
1663         card = chip->card;
1664
1665         strcpy(card->mixername, "ESS Solo-1");
1666
1667         for (idx = 0; idx < ARRAY_SIZE(snd_es1938_controls); idx++) {
1668                 struct snd_kcontrol *kctl;
1669                 kctl = snd_ctl_new1(&snd_es1938_controls[idx], chip);
1670                 switch (idx) {
1671                         case 0:
1672                                 chip->master_volume = kctl;
1673                                 kctl->private_free = snd_es1938_hwv_free;
1674                                 break;
1675                         case 1:
1676                                 chip->master_switch = kctl;
1677                                 kctl->private_free = snd_es1938_hwv_free;
1678                                 break;
1679                         case 2:
1680                                 chip->hw_volume = kctl;
1681                                 kctl->private_free = snd_es1938_hwv_free;
1682                                 break;
1683                         case 3:
1684                                 chip->hw_switch = kctl;
1685                                 kctl->private_free = snd_es1938_hwv_free;
1686                                 break;
1687                         }
1688                 if ((err = snd_ctl_add(card, kctl)) < 0)
1689                         return err;
1690         }
1691         return 0;
1692 }
1693        
1694
1695 static int __devinit snd_es1938_probe(struct pci_dev *pci,
1696                                       const struct pci_device_id *pci_id)
1697 {
1698         static int dev;
1699         struct snd_card *card;
1700         struct es1938 *chip;
1701         struct snd_opl3 *opl3;
1702         int idx, err;
1703
1704         if (dev >= SNDRV_CARDS)
1705                 return -ENODEV;
1706         if (!enable[dev]) {
1707                 dev++;
1708                 return -ENOENT;
1709         }
1710
1711         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1712         if (card == NULL)
1713                 return -ENOMEM;
1714         for (idx = 0; idx < 5; idx++) {
1715                 if (pci_resource_start(pci, idx) == 0 ||
1716                     !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
1717                         snd_card_free(card);
1718                         return -ENODEV;
1719                 }
1720         }
1721         if ((err = snd_es1938_create(card, pci, &chip)) < 0) {
1722                 snd_card_free(card);
1723                 return err;
1724         }
1725         card->private_data = chip;
1726
1727         strcpy(card->driver, "ES1938");
1728         strcpy(card->shortname, "ESS ES1938 (Solo-1)");
1729         sprintf(card->longname, "%s rev %i, irq %i",
1730                 card->shortname,
1731                 chip->revision,
1732                 chip->irq);
1733
1734         if ((err = snd_es1938_new_pcm(chip, 0)) < 0) {
1735                 snd_card_free(card);
1736                 return err;
1737         }
1738         if ((err = snd_es1938_mixer(chip)) < 0) {
1739                 snd_card_free(card);
1740                 return err;
1741         }
1742         if (snd_opl3_create(card,
1743                             SLSB_REG(chip, FMLOWADDR),
1744                             SLSB_REG(chip, FMHIGHADDR),
1745                             OPL3_HW_OPL3, 1, &opl3) < 0) {
1746                 printk(KERN_ERR "es1938: OPL3 not detected at 0x%lx\n",
1747                            SLSB_REG(chip, FMLOWADDR));
1748         } else {
1749                 if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
1750                         snd_card_free(card);
1751                         return err;
1752                 }
1753                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1754                         snd_card_free(card);
1755                         return err;
1756                 }
1757         }
1758         if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
1759                                 chip->mpu_port, MPU401_INFO_INTEGRATED,
1760                                 chip->irq, 0, &chip->rmidi) < 0) {
1761                 printk(KERN_ERR "es1938: unable to initialize MPU-401\n");
1762         } else {
1763                 // this line is vital for MIDI interrupt handling on ess-solo1
1764                 // andreas@flying-snail.de
1765                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);
1766         }
1767
1768         snd_es1938_create_gameport(chip);
1769
1770         if ((err = snd_card_register(card)) < 0) {
1771                 snd_card_free(card);
1772                 return err;
1773         }
1774
1775         pci_set_drvdata(pci, card);
1776         dev++;
1777         return 0;
1778 }
1779
1780 static void __devexit snd_es1938_remove(struct pci_dev *pci)
1781 {
1782         snd_card_free(pci_get_drvdata(pci));
1783         pci_set_drvdata(pci, NULL);
1784 }
1785
1786 static struct pci_driver driver = {
1787         .name = "ESS ES1938 (Solo-1)",
1788         .id_table = snd_es1938_ids,
1789         .probe = snd_es1938_probe,
1790         .remove = __devexit_p(snd_es1938_remove),
1791 #ifdef CONFIG_PM
1792         .suspend = es1938_suspend,
1793         .resume = es1938_resume,
1794 #endif
1795 };
1796
1797 static int __init alsa_card_es1938_init(void)
1798 {
1799         return pci_register_driver(&driver);
1800 }
1801
1802 static void __exit alsa_card_es1938_exit(void)
1803 {
1804         pci_unregister_driver(&driver);
1805 }
1806
1807 module_init(alsa_card_es1938_init)
1808 module_exit(alsa_card_es1938_exit)