[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz
[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@perex.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 #include <sound/tlv.h>
66
67 #include <asm/io.h>
68
69 MODULE_AUTHOR("Jaromir Koutek <miri@punknet.cz>");
70 MODULE_DESCRIPTION("ESS Solo-1");
71 MODULE_LICENSE("GPL");
72 MODULE_SUPPORTED_DEVICE("{{ESS,ES1938},"
73                 "{ESS,ES1946},"
74                 "{ESS,ES1969},"
75                 "{TerraTec,128i PCI}}");
76
77 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
78 #define SUPPORT_JOYSTICK 1
79 #endif
80
81 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
82 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
83 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
84
85 module_param_array(index, int, NULL, 0444);
86 MODULE_PARM_DESC(index, "Index value for ESS Solo-1 soundcard.");
87 module_param_array(id, charp, NULL, 0444);
88 MODULE_PARM_DESC(id, "ID string for ESS Solo-1 soundcard.");
89 module_param_array(enable, bool, NULL, 0444);
90 MODULE_PARM_DESC(enable, "Enable ESS Solo-1 soundcard.");
91
92 #define SLIO_REG(chip, x) ((chip)->io_port + ESSIO_REG_##x)
93
94 #define SLDM_REG(chip, x) ((chip)->ddma_port + ESSDM_REG_##x)
95
96 #define SLSB_REG(chip, x) ((chip)->sb_port + ESSSB_REG_##x)
97
98 #define SL_PCI_LEGACYCONTROL            0x40
99 #define SL_PCI_CONFIG                   0x50
100 #define SL_PCI_DDMACONTROL              0x60
101
102 #define ESSIO_REG_AUDIO2DMAADDR         0
103 #define ESSIO_REG_AUDIO2DMACOUNT        4
104 #define ESSIO_REG_AUDIO2MODE            6
105 #define ESSIO_REG_IRQCONTROL            7
106
107 #define ESSDM_REG_DMAADDR               0x00
108 #define ESSDM_REG_DMACOUNT              0x04
109 #define ESSDM_REG_DMACOMMAND            0x08
110 #define ESSDM_REG_DMASTATUS             0x08
111 #define ESSDM_REG_DMAMODE               0x0b
112 #define ESSDM_REG_DMACLEAR              0x0d
113 #define ESSDM_REG_DMAMASK               0x0f
114
115 #define ESSSB_REG_FMLOWADDR             0x00
116 #define ESSSB_REG_FMHIGHADDR            0x02
117 #define ESSSB_REG_MIXERADDR             0x04
118 #define ESSSB_REG_MIXERDATA             0x05
119
120 #define ESSSB_IREG_AUDIO1               0x14
121 #define ESSSB_IREG_MICMIX               0x1a
122 #define ESSSB_IREG_RECSRC               0x1c
123 #define ESSSB_IREG_MASTER               0x32
124 #define ESSSB_IREG_FM                   0x36
125 #define ESSSB_IREG_AUXACD               0x38
126 #define ESSSB_IREG_AUXB                 0x3a
127 #define ESSSB_IREG_PCSPEAKER            0x3c
128 #define ESSSB_IREG_LINE                 0x3e
129 #define ESSSB_IREG_SPATCONTROL          0x50
130 #define ESSSB_IREG_SPATLEVEL            0x52
131 #define ESSSB_IREG_MASTER_LEFT          0x60
132 #define ESSSB_IREG_MASTER_RIGHT         0x62
133 #define ESSSB_IREG_MPU401CONTROL        0x64
134 #define ESSSB_IREG_MICMIXRECORD         0x68
135 #define ESSSB_IREG_AUDIO2RECORD         0x69
136 #define ESSSB_IREG_AUXACDRECORD         0x6a
137 #define ESSSB_IREG_FMRECORD             0x6b
138 #define ESSSB_IREG_AUXBRECORD           0x6c
139 #define ESSSB_IREG_MONO                 0x6d
140 #define ESSSB_IREG_LINERECORD           0x6e
141 #define ESSSB_IREG_MONORECORD           0x6f
142 #define ESSSB_IREG_AUDIO2SAMPLE         0x70
143 #define ESSSB_IREG_AUDIO2MODE           0x71
144 #define ESSSB_IREG_AUDIO2FILTER         0x72
145 #define ESSSB_IREG_AUDIO2TCOUNTL        0x74
146 #define ESSSB_IREG_AUDIO2TCOUNTH        0x76
147 #define ESSSB_IREG_AUDIO2CONTROL1       0x78
148 #define ESSSB_IREG_AUDIO2CONTROL2       0x7a
149 #define ESSSB_IREG_AUDIO2               0x7c
150
151 #define ESSSB_REG_RESET                 0x06
152
153 #define ESSSB_REG_READDATA              0x0a
154 #define ESSSB_REG_WRITEDATA             0x0c
155 #define ESSSB_REG_READSTATUS            0x0c
156
157 #define ESSSB_REG_STATUS                0x0e
158
159 #define ESS_CMD_EXTSAMPLERATE           0xa1
160 #define ESS_CMD_FILTERDIV               0xa2
161 #define ESS_CMD_DMACNTRELOADL           0xa4
162 #define ESS_CMD_DMACNTRELOADH           0xa5
163 #define ESS_CMD_ANALOGCONTROL           0xa8
164 #define ESS_CMD_IRQCONTROL              0xb1
165 #define ESS_CMD_DRQCONTROL              0xb2
166 #define ESS_CMD_RECLEVEL                0xb4
167 #define ESS_CMD_SETFORMAT               0xb6
168 #define ESS_CMD_SETFORMAT2              0xb7
169 #define ESS_CMD_DMACONTROL              0xb8
170 #define ESS_CMD_DMATYPE                 0xb9
171 #define ESS_CMD_OFFSETLEFT              0xba    
172 #define ESS_CMD_OFFSETRIGHT             0xbb
173 #define ESS_CMD_READREG                 0xc0
174 #define ESS_CMD_ENABLEEXT               0xc6
175 #define ESS_CMD_PAUSEDMA                0xd0
176 #define ESS_CMD_ENABLEAUDIO1            0xd1
177 #define ESS_CMD_STOPAUDIO1              0xd3
178 #define ESS_CMD_AUDIO1STATUS            0xd8
179 #define ESS_CMD_CONTDMA                 0xd4
180 #define ESS_CMD_TESTIRQ                 0xf2
181
182 #define ESS_RECSRC_MIC          0
183 #define ESS_RECSRC_AUXACD       2
184 #define ESS_RECSRC_AUXB         5
185 #define ESS_RECSRC_LINE         6
186 #define ESS_RECSRC_NONE         7
187
188 #define DAC1 0x01
189 #define ADC1 0x02
190 #define DAC2 0x04
191
192 /*
193
194  */
195
196 #define SAVED_REG_SIZE  32 /* max. number of registers to save */
197
198 struct es1938 {
199         int irq;
200
201         unsigned long io_port;
202         unsigned long sb_port;
203         unsigned long vc_port;
204         unsigned long mpu_port;
205         unsigned long game_port;
206         unsigned long ddma_port;
207
208         unsigned char irqmask;
209         unsigned char revision;
210
211         struct snd_kcontrol *hw_volume;
212         struct snd_kcontrol *hw_switch;
213         struct snd_kcontrol *master_volume;
214         struct snd_kcontrol *master_switch;
215
216         struct pci_dev *pci;
217         struct snd_card *card;
218         struct snd_pcm *pcm;
219         struct snd_pcm_substream *capture_substream;
220         struct snd_pcm_substream *playback1_substream;
221         struct snd_pcm_substream *playback2_substream;
222         struct snd_rawmidi *rmidi;
223
224         unsigned int dma1_size;
225         unsigned int dma2_size;
226         unsigned int dma1_start;
227         unsigned int dma2_start;
228         unsigned int dma1_shift;
229         unsigned int dma2_shift;
230         unsigned int active;
231
232         spinlock_t reg_lock;
233         spinlock_t mixer_lock;
234         struct snd_info_entry *proc_entry;
235
236 #ifdef SUPPORT_JOYSTICK
237         struct gameport *gameport;
238 #endif
239 #ifdef CONFIG_PM
240         unsigned char saved_regs[SAVED_REG_SIZE];
241 #endif
242 };
243
244 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id);
245
246 static struct pci_device_id snd_es1938_ids[] = {
247         { 0x125d, 0x1969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Solo-1 */
248         { 0, }
249 };
250
251 MODULE_DEVICE_TABLE(pci, snd_es1938_ids);
252
253 #define RESET_LOOP_TIMEOUT      0x10000
254 #define WRITE_LOOP_TIMEOUT      0x10000
255 #define GET_LOOP_TIMEOUT        0x01000
256
257 #undef REG_DEBUG
258 /* -----------------------------------------------------------------
259  * Write to a mixer register
260  * -----------------------------------------------------------------*/
261 static void snd_es1938_mixer_write(struct es1938 *chip, unsigned char reg, unsigned char val)
262 {
263         unsigned long flags;
264         spin_lock_irqsave(&chip->mixer_lock, flags);
265         outb(reg, SLSB_REG(chip, MIXERADDR));
266         outb(val, SLSB_REG(chip, MIXERDATA));
267         spin_unlock_irqrestore(&chip->mixer_lock, flags);
268 #ifdef REG_DEBUG
269         snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, val);
270 #endif
271 }
272
273 /* -----------------------------------------------------------------
274  * Read from a mixer register
275  * -----------------------------------------------------------------*/
276 static int snd_es1938_mixer_read(struct es1938 *chip, unsigned char reg)
277 {
278         int data;
279         unsigned long flags;
280         spin_lock_irqsave(&chip->mixer_lock, flags);
281         outb(reg, SLSB_REG(chip, MIXERADDR));
282         data = inb(SLSB_REG(chip, MIXERDATA));
283         spin_unlock_irqrestore(&chip->mixer_lock, flags);
284 #ifdef REG_DEBUG
285         snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
286 #endif
287         return data;
288 }
289
290 /* -----------------------------------------------------------------
291  * Write to some bits of a mixer register (return old value)
292  * -----------------------------------------------------------------*/
293 static int snd_es1938_mixer_bits(struct es1938 *chip, unsigned char reg,
294                                  unsigned char mask, unsigned char val)
295 {
296         unsigned long flags;
297         unsigned char old, new, oval;
298         spin_lock_irqsave(&chip->mixer_lock, flags);
299         outb(reg, SLSB_REG(chip, MIXERADDR));
300         old = inb(SLSB_REG(chip, MIXERDATA));
301         oval = old & mask;
302         if (val != oval) {
303                 new = (old & ~mask) | (val & mask);
304                 outb(new, SLSB_REG(chip, MIXERDATA));
305 #ifdef REG_DEBUG
306                 snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
307                            reg, old, new);
308 #endif
309         }
310         spin_unlock_irqrestore(&chip->mixer_lock, flags);
311         return oval;
312 }
313
314 /* -----------------------------------------------------------------
315  * Write command to Controller Registers
316  * -----------------------------------------------------------------*/
317 static void snd_es1938_write_cmd(struct es1938 *chip, unsigned char cmd)
318 {
319         int i;
320         unsigned char v;
321         for (i = 0; i < WRITE_LOOP_TIMEOUT; i++) {
322                 if (!(v = inb(SLSB_REG(chip, READSTATUS)) & 0x80)) {
323                         outb(cmd, SLSB_REG(chip, WRITEDATA));
324                         return;
325                 }
326         }
327         printk(KERN_ERR "snd_es1938_write_cmd timeout (0x02%x/0x02%x)\n", cmd, v);
328 }
329
330 /* -----------------------------------------------------------------
331  * Read the Read Data Buffer
332  * -----------------------------------------------------------------*/
333 static int snd_es1938_get_byte(struct es1938 *chip)
334 {
335         int i;
336         unsigned char v;
337         for (i = GET_LOOP_TIMEOUT; i; i--)
338                 if ((v = inb(SLSB_REG(chip, STATUS))) & 0x80)
339                         return inb(SLSB_REG(chip, READDATA));
340         snd_printk(KERN_ERR "get_byte timeout: status 0x02%x\n", v);
341         return -ENODEV;
342 }
343
344 /* -----------------------------------------------------------------
345  * Write value cmd register
346  * -----------------------------------------------------------------*/
347 static void snd_es1938_write(struct es1938 *chip, unsigned char reg, unsigned char val)
348 {
349         unsigned long flags;
350         spin_lock_irqsave(&chip->reg_lock, flags);
351         snd_es1938_write_cmd(chip, reg);
352         snd_es1938_write_cmd(chip, val);
353         spin_unlock_irqrestore(&chip->reg_lock, flags);
354 #ifdef REG_DEBUG
355         snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, val);
356 #endif
357 }
358
359 /* -----------------------------------------------------------------
360  * Read data from cmd register and return it
361  * -----------------------------------------------------------------*/
362 static unsigned char snd_es1938_read(struct es1938 *chip, unsigned char reg)
363 {
364         unsigned char val;
365         unsigned long flags;
366         spin_lock_irqsave(&chip->reg_lock, flags);
367         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
368         snd_es1938_write_cmd(chip, reg);
369         val = snd_es1938_get_byte(chip);
370         spin_unlock_irqrestore(&chip->reg_lock, flags);
371 #ifdef REG_DEBUG
372         snd_printk(KERN_DEBUG "Reg %02x now is %02x\n", reg, val);
373 #endif
374         return val;
375 }
376
377 /* -----------------------------------------------------------------
378  * Write data to cmd register and return old value
379  * -----------------------------------------------------------------*/
380 static int snd_es1938_bits(struct es1938 *chip, unsigned char reg, unsigned char mask,
381                            unsigned char val)
382 {
383         unsigned long flags;
384         unsigned char old, new, oval;
385         spin_lock_irqsave(&chip->reg_lock, flags);
386         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
387         snd_es1938_write_cmd(chip, reg);
388         old = snd_es1938_get_byte(chip);
389         oval = old & mask;
390         if (val != oval) {
391                 snd_es1938_write_cmd(chip, reg);
392                 new = (old & ~mask) | (val & mask);
393                 snd_es1938_write_cmd(chip, new);
394 #ifdef REG_DEBUG
395                 snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x\n",
396                            reg, old, new);
397 #endif
398         }
399         spin_unlock_irqrestore(&chip->reg_lock, flags);
400         return oval;
401 }
402
403 /* --------------------------------------------------------------------
404  * Reset the chip
405  * --------------------------------------------------------------------*/
406 static void snd_es1938_reset(struct es1938 *chip)
407 {
408         int i;
409
410         outb(3, SLSB_REG(chip, RESET));
411         inb(SLSB_REG(chip, RESET));
412         outb(0, SLSB_REG(chip, RESET));
413         for (i = 0; i < RESET_LOOP_TIMEOUT; i++) {
414                 if (inb(SLSB_REG(chip, STATUS)) & 0x80) {
415                         if (inb(SLSB_REG(chip, READDATA)) == 0xaa)
416                                 goto __next;
417                 }
418         }
419         snd_printk(KERN_ERR "ESS Solo-1 reset failed\n");
420
421      __next:
422         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEEXT);
423
424         /* Demand transfer DMA: 4 bytes per DMA request */
425         snd_es1938_write(chip, ESS_CMD_DMATYPE, 2);
426
427         /* Change behaviour of register A1
428            4x oversampling
429            2nd channel DAC asynchronous */                                                      
430         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2MODE, 0x32);
431         /* enable/select DMA channel and IRQ channel */
432         snd_es1938_bits(chip, ESS_CMD_IRQCONTROL, 0xf0, 0x50);
433         snd_es1938_bits(chip, ESS_CMD_DRQCONTROL, 0xf0, 0x50);
434         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEAUDIO1);
435         /* Set spatializer parameters to recommended values */
436         snd_es1938_mixer_write(chip, 0x54, 0x8f);
437         snd_es1938_mixer_write(chip, 0x56, 0x95);
438         snd_es1938_mixer_write(chip, 0x58, 0x94);
439         snd_es1938_mixer_write(chip, 0x5a, 0x80);
440 }
441
442 /* --------------------------------------------------------------------
443  * Reset the FIFOs
444  * --------------------------------------------------------------------*/
445 static void snd_es1938_reset_fifo(struct es1938 *chip)
446 {
447         outb(2, SLSB_REG(chip, RESET));
448         outb(0, SLSB_REG(chip, RESET));
449 }
450
451 static struct snd_ratnum clocks[2] = {
452         {
453                 .num = 793800,
454                 .den_min = 1,
455                 .den_max = 128,
456                 .den_step = 1,
457         },
458         {
459                 .num = 768000,
460                 .den_min = 1,
461                 .den_max = 128,
462                 .den_step = 1,
463         }
464 };
465
466 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
467         .nrats = 2,
468         .rats = clocks,
469 };
470
471
472 static void snd_es1938_rate_set(struct es1938 *chip, 
473                                 struct snd_pcm_substream *substream,
474                                 int mode)
475 {
476         unsigned int bits, div0;
477         struct snd_pcm_runtime *runtime = substream->runtime;
478         if (runtime->rate_num == clocks[0].num)
479                 bits = 128 - runtime->rate_den;
480         else
481                 bits = 256 - runtime->rate_den;
482
483         /* set filter register */
484         div0 = 256 - 7160000*20/(8*82*runtime->rate);
485                 
486         if (mode == DAC2) {
487                 snd_es1938_mixer_write(chip, 0x70, bits);
488                 snd_es1938_mixer_write(chip, 0x72, div0);
489         } else {
490                 snd_es1938_write(chip, 0xA1, bits);
491                 snd_es1938_write(chip, 0xA2, div0);
492         }
493 }
494
495 /* --------------------------------------------------------------------
496  * Configure Solo1 builtin DMA Controller
497  * --------------------------------------------------------------------*/
498
499 static void snd_es1938_playback1_setdma(struct es1938 *chip)
500 {
501         outb(0x00, SLIO_REG(chip, AUDIO2MODE));
502         outl(chip->dma2_start, SLIO_REG(chip, AUDIO2DMAADDR));
503         outw(0, SLIO_REG(chip, AUDIO2DMACOUNT));
504         outw(chip->dma2_size, SLIO_REG(chip, AUDIO2DMACOUNT));
505 }
506
507 static void snd_es1938_playback2_setdma(struct es1938 *chip)
508 {
509         /* Enable DMA controller */
510         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
511         /* 1. Master reset */
512         outb(0, SLDM_REG(chip, DMACLEAR));
513         /* 2. Mask DMA */
514         outb(1, SLDM_REG(chip, DMAMASK));
515         outb(0x18, SLDM_REG(chip, DMAMODE));
516         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
517         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
518         /* 3. Unmask DMA */
519         outb(0, SLDM_REG(chip, DMAMASK));
520 }
521
522 static void snd_es1938_capture_setdma(struct es1938 *chip)
523 {
524         /* Enable DMA controller */
525         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
526         /* 1. Master reset */
527         outb(0, SLDM_REG(chip, DMACLEAR));
528         /* 2. Mask DMA */
529         outb(1, SLDM_REG(chip, DMAMASK));
530         outb(0x14, SLDM_REG(chip, DMAMODE));
531         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
532         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
533         /* 3. Unmask DMA */
534         outb(0, SLDM_REG(chip, DMAMASK));
535 }
536
537 /* ----------------------------------------------------------------------
538  *
539  *                           *** PCM part ***
540  */
541
542 static int snd_es1938_capture_trigger(struct snd_pcm_substream *substream,
543                                       int cmd)
544 {
545         struct es1938 *chip = snd_pcm_substream_chip(substream);
546         int val;
547         switch (cmd) {
548         case SNDRV_PCM_TRIGGER_START:
549         case SNDRV_PCM_TRIGGER_RESUME:
550                 val = 0x0f;
551                 chip->active |= ADC1;
552                 break;
553         case SNDRV_PCM_TRIGGER_STOP:
554         case SNDRV_PCM_TRIGGER_SUSPEND:
555                 val = 0x00;
556                 chip->active &= ~ADC1;
557                 break;
558         default:
559                 return -EINVAL;
560         }
561         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
562         return 0;
563 }
564
565 static int snd_es1938_playback1_trigger(struct snd_pcm_substream *substream,
566                                         int cmd)
567 {
568         struct es1938 *chip = snd_pcm_substream_chip(substream);
569         switch (cmd) {
570         case SNDRV_PCM_TRIGGER_START:
571         case SNDRV_PCM_TRIGGER_RESUME:
572                 /* According to the documentation this should be:
573                    0x13 but that value may randomly swap stereo channels */
574                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x92);
575                 udelay(10);
576                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x93);
577                 /* This two stage init gives the FIFO -> DAC connection time to
578                  * settle before first data from DMA flows in.  This should ensure
579                  * no swapping of stereo channels.  Report a bug if otherwise :-) */
580                 outb(0x0a, SLIO_REG(chip, AUDIO2MODE));
581                 chip->active |= DAC2;
582                 break;
583         case SNDRV_PCM_TRIGGER_STOP:
584         case SNDRV_PCM_TRIGGER_SUSPEND:
585                 outb(0, SLIO_REG(chip, AUDIO2MODE));
586                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0);
587                 chip->active &= ~DAC2;
588                 break;
589         default:
590                 return -EINVAL;
591         }
592         return 0;
593 }
594
595 static int snd_es1938_playback2_trigger(struct snd_pcm_substream *substream,
596                                         int cmd)
597 {
598         struct es1938 *chip = snd_pcm_substream_chip(substream);
599         int val;
600         switch (cmd) {
601         case SNDRV_PCM_TRIGGER_START:
602         case SNDRV_PCM_TRIGGER_RESUME:
603                 val = 5;
604                 chip->active |= DAC1;
605                 break;
606         case SNDRV_PCM_TRIGGER_STOP:
607         case SNDRV_PCM_TRIGGER_SUSPEND:
608                 val = 0;
609                 chip->active &= ~DAC1;
610                 break;
611         default:
612                 return -EINVAL;
613         }
614         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
615         return 0;
616 }
617
618 static int snd_es1938_playback_trigger(struct snd_pcm_substream *substream,
619                                        int cmd)
620 {
621         switch (substream->number) {
622         case 0:
623                 return snd_es1938_playback1_trigger(substream, cmd);
624         case 1:
625                 return snd_es1938_playback2_trigger(substream, cmd);
626         }
627         snd_BUG();
628         return -EINVAL;
629 }
630
631 /* --------------------------------------------------------------------
632  * First channel for Extended Mode Audio 1 ADC Operation
633  * --------------------------------------------------------------------*/
634 static int snd_es1938_capture_prepare(struct snd_pcm_substream *substream)
635 {
636         struct es1938 *chip = snd_pcm_substream_chip(substream);
637         struct snd_pcm_runtime *runtime = substream->runtime;
638         int u, is8, mono;
639         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
640         unsigned int count = snd_pcm_lib_period_bytes(substream);
641
642         chip->dma1_size = size;
643         chip->dma1_start = runtime->dma_addr;
644
645         mono = (runtime->channels > 1) ? 0 : 1;
646         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
647         u = snd_pcm_format_unsigned(runtime->format);
648
649         chip->dma1_shift = 2 - mono - is8;
650
651         snd_es1938_reset_fifo(chip);
652         
653         /* program type */
654         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
655
656         /* set clock and counters */
657         snd_es1938_rate_set(chip, substream, ADC1);
658
659         count = 0x10000 - count;
660         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
661         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
662
663         /* initialize and configure ADC */
664         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, u ? 0x51 : 0x71);
665         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 0x90 | 
666                        (u ? 0x00 : 0x20) | 
667                        (is8 ? 0x00 : 0x04) | 
668                        (mono ? 0x40 : 0x08));
669
670         //      snd_es1938_reset_fifo(chip);    
671
672         /* 11. configure system interrupt controller and DMA controller */
673         snd_es1938_capture_setdma(chip);
674
675         return 0;
676 }
677
678
679 /* ------------------------------------------------------------------------------
680  * Second Audio channel DAC Operation
681  * ------------------------------------------------------------------------------*/
682 static int snd_es1938_playback1_prepare(struct snd_pcm_substream *substream)
683 {
684         struct es1938 *chip = snd_pcm_substream_chip(substream);
685         struct snd_pcm_runtime *runtime = substream->runtime;
686         int u, is8, mono;
687         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
688         unsigned int count = snd_pcm_lib_period_bytes(substream);
689
690         chip->dma2_size = size;
691         chip->dma2_start = runtime->dma_addr;
692
693         mono = (runtime->channels > 1) ? 0 : 1;
694         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
695         u = snd_pcm_format_unsigned(runtime->format);
696
697         chip->dma2_shift = 2 - mono - is8;
698
699         snd_es1938_reset_fifo(chip);
700
701         /* set clock and counters */
702         snd_es1938_rate_set(chip, substream, DAC2);
703
704         count >>= 1;
705         count = 0x10000 - count;
706         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTL, count & 0xff);
707         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTH, count >> 8);
708
709         /* initialize and configure Audio 2 DAC */
710         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x40 | (u ? 0 : 4) |
711                                (mono ? 0 : 2) | (is8 ? 0 : 1));
712
713         /* program DMA */
714         snd_es1938_playback1_setdma(chip);
715         
716         return 0;
717 }
718
719 static int snd_es1938_playback2_prepare(struct snd_pcm_substream *substream)
720 {
721         struct es1938 *chip = snd_pcm_substream_chip(substream);
722         struct snd_pcm_runtime *runtime = substream->runtime;
723         int u, is8, mono;
724         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
725         unsigned int count = snd_pcm_lib_period_bytes(substream);
726
727         chip->dma1_size = size;
728         chip->dma1_start = runtime->dma_addr;
729
730         mono = (runtime->channels > 1) ? 0 : 1;
731         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
732         u = snd_pcm_format_unsigned(runtime->format);
733
734         chip->dma1_shift = 2 - mono - is8;
735
736         count = 0x10000 - count;
737  
738         /* reset */
739         snd_es1938_reset_fifo(chip);
740         
741         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
742
743         /* set clock and counters */
744         snd_es1938_rate_set(chip, substream, DAC1);
745         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
746         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
747
748         /* initialized and configure DAC */
749         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x80 : 0x00);
750         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x51 : 0x71);
751         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 
752                          0x90 | (mono ? 0x40 : 0x08) |
753                          (is8 ? 0x00 : 0x04) | (u ? 0x00 : 0x20));
754
755         /* program DMA */
756         snd_es1938_playback2_setdma(chip);
757         
758         return 0;
759 }
760
761 static int snd_es1938_playback_prepare(struct snd_pcm_substream *substream)
762 {
763         switch (substream->number) {
764         case 0:
765                 return snd_es1938_playback1_prepare(substream);
766         case 1:
767                 return snd_es1938_playback2_prepare(substream);
768         }
769         snd_BUG();
770         return -EINVAL;
771 }
772
773 static snd_pcm_uframes_t snd_es1938_capture_pointer(struct snd_pcm_substream *substream)
774 {
775         struct es1938 *chip = snd_pcm_substream_chip(substream);
776         size_t ptr;
777         size_t old, new;
778 #if 1
779         /* This stuff is *needed*, don't ask why - AB */
780         old = inw(SLDM_REG(chip, DMACOUNT));
781         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
782                 old = new;
783         ptr = chip->dma1_size - 1 - new;
784 #else
785         ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
786 #endif
787         return ptr >> chip->dma1_shift;
788 }
789
790 static snd_pcm_uframes_t snd_es1938_playback1_pointer(struct snd_pcm_substream *substream)
791 {
792         struct es1938 *chip = snd_pcm_substream_chip(substream);
793         size_t ptr;
794 #if 1
795         ptr = chip->dma2_size - inw(SLIO_REG(chip, AUDIO2DMACOUNT));
796 #else
797         ptr = inl(SLIO_REG(chip, AUDIO2DMAADDR)) - chip->dma2_start;
798 #endif
799         return ptr >> chip->dma2_shift;
800 }
801
802 static snd_pcm_uframes_t snd_es1938_playback2_pointer(struct snd_pcm_substream *substream)
803 {
804         struct es1938 *chip = snd_pcm_substream_chip(substream);
805         size_t ptr;
806         size_t old, new;
807 #if 1
808         /* This stuff is *needed*, don't ask why - AB */
809         old = inw(SLDM_REG(chip, DMACOUNT));
810         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
811                 old = new;
812         ptr = chip->dma1_size - 1 - new;
813 #else
814         ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
815 #endif
816         return ptr >> chip->dma1_shift;
817 }
818
819 static snd_pcm_uframes_t snd_es1938_playback_pointer(struct snd_pcm_substream *substream)
820 {
821         switch (substream->number) {
822         case 0:
823                 return snd_es1938_playback1_pointer(substream);
824         case 1:
825                 return snd_es1938_playback2_pointer(substream);
826         }
827         snd_BUG();
828         return -EINVAL;
829 }
830
831 static int snd_es1938_capture_copy(struct snd_pcm_substream *substream,
832                                    int channel,
833                                    snd_pcm_uframes_t pos,
834                                    void __user *dst,
835                                    snd_pcm_uframes_t count)
836 {
837         struct snd_pcm_runtime *runtime = substream->runtime;
838         struct es1938 *chip = snd_pcm_substream_chip(substream);
839         pos <<= chip->dma1_shift;
840         count <<= chip->dma1_shift;
841         snd_assert(pos + count <= chip->dma1_size, return -EINVAL);
842         if (pos + count < chip->dma1_size) {
843                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
844                         return -EFAULT;
845         } else {
846                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
847                         return -EFAULT;
848                 if (put_user(runtime->dma_area[0], ((unsigned char __user *)dst) + count - 1))
849                         return -EFAULT;
850         }
851         return 0;
852 }
853
854 /*
855  * buffer management
856  */
857 static int snd_es1938_pcm_hw_params(struct snd_pcm_substream *substream,
858                                     struct snd_pcm_hw_params *hw_params)
859
860 {
861         int err;
862
863         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
864                 return err;
865         return 0;
866 }
867
868 static int snd_es1938_pcm_hw_free(struct snd_pcm_substream *substream)
869 {
870         return snd_pcm_lib_free_pages(substream);
871 }
872
873 /* ----------------------------------------------------------------------
874  * Audio1 Capture (ADC)
875  * ----------------------------------------------------------------------*/
876 static struct snd_pcm_hardware snd_es1938_capture =
877 {
878         .info =                 (SNDRV_PCM_INFO_INTERLEAVED |
879                                 SNDRV_PCM_INFO_BLOCK_TRANSFER),
880         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
881                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
882         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
883         .rate_min =             6000,
884         .rate_max =             48000,
885         .channels_min =         1,
886         .channels_max =         2,
887         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
888         .period_bytes_min =     64,
889         .period_bytes_max =     0x8000,
890         .periods_min =          1,
891         .periods_max =          1024,
892         .fifo_size =            256,
893 };
894
895 /* -----------------------------------------------------------------------
896  * Audio2 Playback (DAC)
897  * -----------------------------------------------------------------------*/
898 static struct snd_pcm_hardware snd_es1938_playback =
899 {
900         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
901                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
902                                  SNDRV_PCM_INFO_MMAP_VALID),
903         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
904                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
905         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
906         .rate_min =             6000,
907         .rate_max =             48000,
908         .channels_min =         1,
909         .channels_max =         2,
910         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
911         .period_bytes_min =     64,
912         .period_bytes_max =     0x8000,
913         .periods_min =          1,
914         .periods_max =          1024,
915         .fifo_size =            256,
916 };
917
918 static int snd_es1938_capture_open(struct snd_pcm_substream *substream)
919 {
920         struct es1938 *chip = snd_pcm_substream_chip(substream);
921         struct snd_pcm_runtime *runtime = substream->runtime;
922
923         if (chip->playback2_substream)
924                 return -EAGAIN;
925         chip->capture_substream = substream;
926         runtime->hw = snd_es1938_capture;
927         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
928                                       &hw_constraints_clocks);
929         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
930         return 0;
931 }
932
933 static int snd_es1938_playback_open(struct snd_pcm_substream *substream)
934 {
935         struct es1938 *chip = snd_pcm_substream_chip(substream);
936         struct snd_pcm_runtime *runtime = substream->runtime;
937
938         switch (substream->number) {
939         case 0:
940                 chip->playback1_substream = substream;
941                 break;
942         case 1:
943                 if (chip->capture_substream)
944                         return -EAGAIN;
945                 chip->playback2_substream = substream;
946                 break;
947         default:
948                 snd_BUG();
949                 return -EINVAL;
950         }
951         runtime->hw = snd_es1938_playback;
952         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
953                                       &hw_constraints_clocks);
954         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
955         return 0;
956 }
957
958 static int snd_es1938_capture_close(struct snd_pcm_substream *substream)
959 {
960         struct es1938 *chip = snd_pcm_substream_chip(substream);
961
962         chip->capture_substream = NULL;
963         return 0;
964 }
965
966 static int snd_es1938_playback_close(struct snd_pcm_substream *substream)
967 {
968         struct es1938 *chip = snd_pcm_substream_chip(substream);
969
970         switch (substream->number) {
971         case 0:
972                 chip->playback1_substream = NULL;
973                 break;
974         case 1:
975                 chip->playback2_substream = NULL;
976                 break;
977         default:
978                 snd_BUG();
979                 return -EINVAL;
980         }
981         return 0;
982 }
983
984 static struct snd_pcm_ops snd_es1938_playback_ops = {
985         .open =         snd_es1938_playback_open,
986         .close =        snd_es1938_playback_close,
987         .ioctl =        snd_pcm_lib_ioctl,
988         .hw_params =    snd_es1938_pcm_hw_params,
989         .hw_free =      snd_es1938_pcm_hw_free,
990         .prepare =      snd_es1938_playback_prepare,
991         .trigger =      snd_es1938_playback_trigger,
992         .pointer =      snd_es1938_playback_pointer,
993 };
994
995 static struct snd_pcm_ops snd_es1938_capture_ops = {
996         .open =         snd_es1938_capture_open,
997         .close =        snd_es1938_capture_close,
998         .ioctl =        snd_pcm_lib_ioctl,
999         .hw_params =    snd_es1938_pcm_hw_params,
1000         .hw_free =      snd_es1938_pcm_hw_free,
1001         .prepare =      snd_es1938_capture_prepare,
1002         .trigger =      snd_es1938_capture_trigger,
1003         .pointer =      snd_es1938_capture_pointer,
1004         .copy =         snd_es1938_capture_copy,
1005 };
1006
1007 static int __devinit snd_es1938_new_pcm(struct es1938 *chip, int device)
1008 {
1009         struct snd_pcm *pcm;
1010         int err;
1011
1012         if ((err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm)) < 0)
1013                 return err;
1014         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1938_playback_ops);
1015         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1938_capture_ops);
1016         
1017         pcm->private_data = chip;
1018         pcm->info_flags = 0;
1019         strcpy(pcm->name, "ESS Solo-1");
1020
1021         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1022                                               snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1023
1024         chip->pcm = pcm;
1025         return 0;
1026 }
1027
1028 /* -------------------------------------------------------------------
1029  * 
1030  *                       *** Mixer part ***
1031  */
1032
1033 static int snd_es1938_info_mux(struct snd_kcontrol *kcontrol,
1034                                struct snd_ctl_elem_info *uinfo)
1035 {
1036         static char *texts[8] = {
1037                 "Mic", "Mic Master", "CD", "AOUT",
1038                 "Mic1", "Mix", "Line", "Master"
1039         };
1040
1041         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1042         uinfo->count = 1;
1043         uinfo->value.enumerated.items = 8;
1044         if (uinfo->value.enumerated.item > 7)
1045                 uinfo->value.enumerated.item = 7;
1046         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1047         return 0;
1048 }
1049
1050 static int snd_es1938_get_mux(struct snd_kcontrol *kcontrol,
1051                               struct snd_ctl_elem_value *ucontrol)
1052 {
1053         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1054         ucontrol->value.enumerated.item[0] = snd_es1938_mixer_read(chip, 0x1c) & 0x07;
1055         return 0;
1056 }
1057
1058 static int snd_es1938_put_mux(struct snd_kcontrol *kcontrol,
1059                               struct snd_ctl_elem_value *ucontrol)
1060 {
1061         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1062         unsigned char val = ucontrol->value.enumerated.item[0];
1063         
1064         if (val > 7)
1065                 return -EINVAL;
1066         return snd_es1938_mixer_bits(chip, 0x1c, 0x07, val) != val;
1067 }
1068
1069 #define snd_es1938_info_spatializer_enable      snd_ctl_boolean_mono_info
1070
1071 static int snd_es1938_get_spatializer_enable(struct snd_kcontrol *kcontrol,
1072                                              struct snd_ctl_elem_value *ucontrol)
1073 {
1074         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1075         unsigned char val = snd_es1938_mixer_read(chip, 0x50);
1076         ucontrol->value.integer.value[0] = !!(val & 8);
1077         return 0;
1078 }
1079
1080 static int snd_es1938_put_spatializer_enable(struct snd_kcontrol *kcontrol,
1081                                              struct snd_ctl_elem_value *ucontrol)
1082 {
1083         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1084         unsigned char oval, nval;
1085         int change;
1086         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1087         oval = snd_es1938_mixer_read(chip, 0x50) & 0x0c;
1088         change = nval != oval;
1089         if (change) {
1090                 snd_es1938_mixer_write(chip, 0x50, nval & ~0x04);
1091                 snd_es1938_mixer_write(chip, 0x50, nval);
1092         }
1093         return change;
1094 }
1095
1096 static int snd_es1938_info_hw_volume(struct snd_kcontrol *kcontrol,
1097                                      struct snd_ctl_elem_info *uinfo)
1098 {
1099         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1100         uinfo->count = 2;
1101         uinfo->value.integer.min = 0;
1102         uinfo->value.integer.max = 63;
1103         return 0;
1104 }
1105
1106 static int snd_es1938_get_hw_volume(struct snd_kcontrol *kcontrol,
1107                                     struct snd_ctl_elem_value *ucontrol)
1108 {
1109         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1110         ucontrol->value.integer.value[0] = snd_es1938_mixer_read(chip, 0x61) & 0x3f;
1111         ucontrol->value.integer.value[1] = snd_es1938_mixer_read(chip, 0x63) & 0x3f;
1112         return 0;
1113 }
1114
1115 #define snd_es1938_info_hw_switch               snd_ctl_boolean_stereo_info
1116
1117 static int snd_es1938_get_hw_switch(struct snd_kcontrol *kcontrol,
1118                                     struct snd_ctl_elem_value *ucontrol)
1119 {
1120         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1121         ucontrol->value.integer.value[0] = !(snd_es1938_mixer_read(chip, 0x61) & 0x40);
1122         ucontrol->value.integer.value[1] = !(snd_es1938_mixer_read(chip, 0x63) & 0x40);
1123         return 0;
1124 }
1125
1126 static void snd_es1938_hwv_free(struct snd_kcontrol *kcontrol)
1127 {
1128         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1129         chip->master_volume = NULL;
1130         chip->master_switch = NULL;
1131         chip->hw_volume = NULL;
1132         chip->hw_switch = NULL;
1133 }
1134
1135 static int snd_es1938_reg_bits(struct es1938 *chip, unsigned char reg,
1136                                unsigned char mask, unsigned char val)
1137 {
1138         if (reg < 0xa0)
1139                 return snd_es1938_mixer_bits(chip, reg, mask, val);
1140         else
1141                 return snd_es1938_bits(chip, reg, mask, val);
1142 }
1143
1144 static int snd_es1938_reg_read(struct es1938 *chip, unsigned char reg)
1145 {
1146         if (reg < 0xa0)
1147                 return snd_es1938_mixer_read(chip, reg);
1148         else
1149                 return snd_es1938_read(chip, reg);
1150 }
1151
1152 #define ES1938_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv)    \
1153 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1154   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
1155   .name = xname, .index = xindex, \
1156   .info = snd_es1938_info_single, \
1157   .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1158   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
1159   .tlv = { .p = xtlv } }
1160 #define ES1938_SINGLE(xname, xindex, reg, shift, mask, invert) \
1161 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1162   .info = snd_es1938_info_single, \
1163   .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1164   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1165
1166 static int snd_es1938_info_single(struct snd_kcontrol *kcontrol,
1167                                   struct snd_ctl_elem_info *uinfo)
1168 {
1169         int mask = (kcontrol->private_value >> 16) & 0xff;
1170
1171         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1172         uinfo->count = 1;
1173         uinfo->value.integer.min = 0;
1174         uinfo->value.integer.max = mask;
1175         return 0;
1176 }
1177
1178 static int snd_es1938_get_single(struct snd_kcontrol *kcontrol,
1179                                  struct snd_ctl_elem_value *ucontrol)
1180 {
1181         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1182         int reg = kcontrol->private_value & 0xff;
1183         int shift = (kcontrol->private_value >> 8) & 0xff;
1184         int mask = (kcontrol->private_value >> 16) & 0xff;
1185         int invert = (kcontrol->private_value >> 24) & 0xff;
1186         int val;
1187         
1188         val = snd_es1938_reg_read(chip, reg);
1189         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1190         if (invert)
1191                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1192         return 0;
1193 }
1194
1195 static int snd_es1938_put_single(struct snd_kcontrol *kcontrol,
1196                                  struct snd_ctl_elem_value *ucontrol)
1197 {
1198         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1199         int reg = kcontrol->private_value & 0xff;
1200         int shift = (kcontrol->private_value >> 8) & 0xff;
1201         int mask = (kcontrol->private_value >> 16) & 0xff;
1202         int invert = (kcontrol->private_value >> 24) & 0xff;
1203         unsigned char val;
1204         
1205         val = (ucontrol->value.integer.value[0] & mask);
1206         if (invert)
1207                 val = mask - val;
1208         mask <<= shift;
1209         val <<= shift;
1210         return snd_es1938_reg_bits(chip, reg, mask, val) != val;
1211 }
1212
1213 #define ES1938_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert, xtlv) \
1214 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1215   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
1216   .name = xname, .index = xindex, \
1217   .info = snd_es1938_info_double, \
1218   .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1219   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22), \
1220   .tlv = { .p = xtlv } }
1221 #define ES1938_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1222 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1223   .info = snd_es1938_info_double, \
1224   .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1225   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1226
1227 static int snd_es1938_info_double(struct snd_kcontrol *kcontrol,
1228                                   struct snd_ctl_elem_info *uinfo)
1229 {
1230         int mask = (kcontrol->private_value >> 24) & 0xff;
1231
1232         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1233         uinfo->count = 2;
1234         uinfo->value.integer.min = 0;
1235         uinfo->value.integer.max = mask;
1236         return 0;
1237 }
1238
1239 static int snd_es1938_get_double(struct snd_kcontrol *kcontrol,
1240                                  struct snd_ctl_elem_value *ucontrol)
1241 {
1242         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1243         int left_reg = kcontrol->private_value & 0xff;
1244         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1245         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1246         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1247         int mask = (kcontrol->private_value >> 24) & 0xff;
1248         int invert = (kcontrol->private_value >> 22) & 1;
1249         unsigned char left, right;
1250         
1251         left = snd_es1938_reg_read(chip, left_reg);
1252         if (left_reg != right_reg)
1253                 right = snd_es1938_reg_read(chip, right_reg);
1254         else
1255                 right = left;
1256         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1257         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1258         if (invert) {
1259                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1260                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1261         }
1262         return 0;
1263 }
1264
1265 static int snd_es1938_put_double(struct snd_kcontrol *kcontrol,
1266                                  struct snd_ctl_elem_value *ucontrol)
1267 {
1268         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1269         int left_reg = kcontrol->private_value & 0xff;
1270         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1271         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1272         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1273         int mask = (kcontrol->private_value >> 24) & 0xff;
1274         int invert = (kcontrol->private_value >> 22) & 1;
1275         int change;
1276         unsigned char val1, val2, mask1, mask2;
1277         
1278         val1 = ucontrol->value.integer.value[0] & mask;
1279         val2 = ucontrol->value.integer.value[1] & mask;
1280         if (invert) {
1281                 val1 = mask - val1;
1282                 val2 = mask - val2;
1283         }
1284         val1 <<= shift_left;
1285         val2 <<= shift_right;
1286         mask1 = mask << shift_left;
1287         mask2 = mask << shift_right;
1288         if (left_reg != right_reg) {
1289                 change = 0;
1290                 if (snd_es1938_reg_bits(chip, left_reg, mask1, val1) != val1)
1291                         change = 1;
1292                 if (snd_es1938_reg_bits(chip, right_reg, mask2, val2) != val2)
1293                         change = 1;
1294         } else {
1295                 change = (snd_es1938_reg_bits(chip, left_reg, mask1 | mask2, 
1296                                               val1 | val2) != (val1 | val2));
1297         }
1298         return change;
1299 }
1300
1301 static unsigned int db_scale_master[] = {
1302         TLV_DB_RANGE_HEAD(2),
1303         0, 54, TLV_DB_SCALE_ITEM(-3600, 50, 1),
1304         54, 63, TLV_DB_SCALE_ITEM(-900, 100, 0),
1305 };
1306
1307 static unsigned int db_scale_audio1[] = {
1308         TLV_DB_RANGE_HEAD(2),
1309         0, 8, TLV_DB_SCALE_ITEM(-3300, 300, 1),
1310         8, 15, TLV_DB_SCALE_ITEM(-900, 150, 0),
1311 };
1312
1313 static unsigned int db_scale_audio2[] = {
1314         TLV_DB_RANGE_HEAD(2),
1315         0, 8, TLV_DB_SCALE_ITEM(-3450, 300, 1),
1316         8, 15, TLV_DB_SCALE_ITEM(-1050, 150, 0),
1317 };
1318
1319 static unsigned int db_scale_mic[] = {
1320         TLV_DB_RANGE_HEAD(2),
1321         0, 8, TLV_DB_SCALE_ITEM(-2400, 300, 1),
1322         8, 15, TLV_DB_SCALE_ITEM(0, 150, 0),
1323 };
1324
1325 static unsigned int db_scale_line[] = {
1326         TLV_DB_RANGE_HEAD(2),
1327         0, 8, TLV_DB_SCALE_ITEM(-3150, 300, 1),
1328         8, 15, TLV_DB_SCALE_ITEM(-750, 150, 0),
1329 };
1330
1331 static const DECLARE_TLV_DB_SCALE(db_scale_capture, 0, 150, 0);
1332
1333 static struct snd_kcontrol_new snd_es1938_controls[] = {
1334 ES1938_DOUBLE_TLV("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0,
1335                   db_scale_master),
1336 ES1938_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1337 {
1338         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1339         .name = "Hardware Master Playback Volume",
1340         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1341         .info = snd_es1938_info_hw_volume,
1342         .get = snd_es1938_get_hw_volume,
1343 },
1344 {
1345         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1346         .access = (SNDRV_CTL_ELEM_ACCESS_READ |
1347                    SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1348         .name = "Hardware Master Playback Switch",
1349         .info = snd_es1938_info_hw_switch,
1350         .get = snd_es1938_get_hw_switch,
1351         .tlv = { .p = db_scale_master },
1352 },
1353 ES1938_SINGLE("Hardware Volume Split", 0, 0x64, 7, 1, 0),
1354 ES1938_DOUBLE_TLV("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0,
1355                   db_scale_line),
1356 ES1938_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1357 ES1938_DOUBLE_TLV("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0,
1358                   db_scale_mic),
1359 ES1938_DOUBLE_TLV("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1360                   db_scale_line),
1361 ES1938_DOUBLE_TLV("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0,
1362                   db_scale_mic),
1363 ES1938_DOUBLE_TLV("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0,
1364                   db_scale_line),
1365 ES1938_DOUBLE_TLV("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0,
1366                   db_scale_capture),
1367 ES1938_SINGLE("PC Speaker Volume", 0, 0x3c, 0, 7, 0),
1368 ES1938_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1369 ES1938_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1370 {
1371         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1372         .name = "Capture Source",
1373         .info = snd_es1938_info_mux,
1374         .get = snd_es1938_get_mux,
1375         .put = snd_es1938_put_mux,
1376 },
1377 ES1938_DOUBLE_TLV("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1378                   db_scale_line),
1379 ES1938_DOUBLE_TLV("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0,
1380                   db_scale_audio2),
1381 ES1938_DOUBLE_TLV("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0,
1382                   db_scale_mic),
1383 ES1938_DOUBLE_TLV("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0,
1384                   db_scale_line),
1385 ES1938_DOUBLE_TLV("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0,
1386                   db_scale_mic),
1387 ES1938_DOUBLE_TLV("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0,
1388                   db_scale_line),
1389 ES1938_DOUBLE_TLV("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0,
1390                   db_scale_line),
1391 ES1938_DOUBLE_TLV("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0,
1392                   db_scale_line),
1393 ES1938_DOUBLE_TLV("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0,
1394                   db_scale_audio2),
1395 ES1938_DOUBLE_TLV("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0,
1396                   db_scale_audio1),
1397 ES1938_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1398 {
1399         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1400         .name = "3D Control - Switch",
1401         .info = snd_es1938_info_spatializer_enable,
1402         .get = snd_es1938_get_spatializer_enable,
1403         .put = snd_es1938_put_spatializer_enable,
1404 },
1405 ES1938_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0)
1406 };
1407
1408
1409 /* ---------------------------------------------------------------------------- */
1410 /* ---------------------------------------------------------------------------- */
1411
1412 /*
1413  * initialize the chip - used by resume callback, too
1414  */
1415 static void snd_es1938_chip_init(struct es1938 *chip)
1416 {
1417         /* reset chip */
1418         snd_es1938_reset(chip);
1419
1420         /* configure native mode */
1421
1422         /* enable bus master */
1423         pci_set_master(chip->pci);
1424
1425         /* disable legacy audio */
1426         pci_write_config_word(chip->pci, SL_PCI_LEGACYCONTROL, 0x805f);
1427
1428         /* set DDMA base */
1429         pci_write_config_word(chip->pci, SL_PCI_DDMACONTROL, chip->ddma_port | 1);
1430
1431         /* set DMA/IRQ policy */
1432         pci_write_config_dword(chip->pci, SL_PCI_CONFIG, 0);
1433
1434         /* enable Audio 1, Audio 2, MPU401 IRQ and HW volume IRQ*/
1435         outb(0xf0, SLIO_REG(chip, IRQCONTROL));
1436
1437         /* reset DMA */
1438         outb(0, SLDM_REG(chip, DMACLEAR));
1439 }
1440
1441 #ifdef CONFIG_PM
1442 /*
1443  * PM support
1444  */
1445
1446 static unsigned char saved_regs[SAVED_REG_SIZE+1] = {
1447         0x14, 0x1a, 0x1c, 0x3a, 0x3c, 0x3e, 0x36, 0x38,
1448         0x50, 0x52, 0x60, 0x61, 0x62, 0x63, 0x64, 0x68,
1449         0x69, 0x6a, 0x6b, 0x6d, 0x6e, 0x6f, 0x7c, 0x7d,
1450         0xa8, 0xb4,
1451 };
1452
1453
1454 static int es1938_suspend(struct pci_dev *pci, pm_message_t state)
1455 {
1456         struct snd_card *card = pci_get_drvdata(pci);
1457         struct es1938 *chip = card->private_data;
1458         unsigned char *s, *d;
1459
1460         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1461         snd_pcm_suspend_all(chip->pcm);
1462
1463         /* save mixer-related registers */
1464         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++)
1465                 *d = snd_es1938_reg_read(chip, *s);
1466
1467         outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */
1468         if (chip->irq >= 0) {
1469                 synchronize_irq(chip->irq);
1470                 free_irq(chip->irq, chip);
1471                 chip->irq = -1;
1472         }
1473         pci_disable_device(pci);
1474         pci_save_state(pci);
1475         pci_set_power_state(pci, pci_choose_state(pci, state));
1476         return 0;
1477 }
1478
1479 static int es1938_resume(struct pci_dev *pci)
1480 {
1481         struct snd_card *card = pci_get_drvdata(pci);
1482         struct es1938 *chip = card->private_data;
1483         unsigned char *s, *d;
1484
1485         pci_set_power_state(pci, PCI_D0);
1486         pci_restore_state(pci);
1487         if (pci_enable_device(pci) < 0) {
1488                 printk(KERN_ERR "es1938: pci_enable_device failed, "
1489                        "disabling device\n");
1490                 snd_card_disconnect(card);
1491                 return -EIO;
1492         }
1493
1494         if (request_irq(pci->irq, snd_es1938_interrupt,
1495                         IRQF_SHARED, "ES1938", chip)) {
1496                 printk(KERN_ERR "es1938: unable to grab IRQ %d, "
1497                        "disabling device\n", pci->irq);
1498                 snd_card_disconnect(card);
1499                 return -EIO;
1500         }
1501         chip->irq = pci->irq;
1502         snd_es1938_chip_init(chip);
1503
1504         /* restore mixer-related registers */
1505         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++) {
1506                 if (*s < 0xa0)
1507                         snd_es1938_mixer_write(chip, *s, *d);
1508                 else
1509                         snd_es1938_write(chip, *s, *d);
1510         }
1511
1512         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1513         return 0;
1514 }
1515 #endif /* CONFIG_PM */
1516
1517 #ifdef SUPPORT_JOYSTICK
1518 static int __devinit snd_es1938_create_gameport(struct es1938 *chip)
1519 {
1520         struct gameport *gp;
1521
1522         chip->gameport = gp = gameport_allocate_port();
1523         if (!gp) {
1524                 printk(KERN_ERR "es1938: cannot allocate memory for gameport\n");
1525                 return -ENOMEM;
1526         }
1527
1528         gameport_set_name(gp, "ES1938");
1529         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1530         gameport_set_dev_parent(gp, &chip->pci->dev);
1531         gp->io = chip->game_port;
1532
1533         gameport_register_port(gp);
1534
1535         return 0;
1536 }
1537
1538 static void snd_es1938_free_gameport(struct es1938 *chip)
1539 {
1540         if (chip->gameport) {
1541                 gameport_unregister_port(chip->gameport);
1542                 chip->gameport = NULL;
1543         }
1544 }
1545 #else
1546 static inline int snd_es1938_create_gameport(struct es1938 *chip) { return -ENOSYS; }
1547 static inline void snd_es1938_free_gameport(struct es1938 *chip) { }
1548 #endif /* SUPPORT_JOYSTICK */
1549
1550 static int snd_es1938_free(struct es1938 *chip)
1551 {
1552         /* disable irqs */
1553         outb(0x00, SLIO_REG(chip, IRQCONTROL));
1554         if (chip->rmidi)
1555                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
1556
1557         snd_es1938_free_gameport(chip);
1558
1559         if (chip->irq >= 0) {
1560                 synchronize_irq(chip->irq);
1561                 free_irq(chip->irq, chip);
1562         }
1563         pci_release_regions(chip->pci);
1564         pci_disable_device(chip->pci);
1565         kfree(chip);
1566         return 0;
1567 }
1568
1569 static int snd_es1938_dev_free(struct snd_device *device)
1570 {
1571         struct es1938 *chip = device->device_data;
1572         return snd_es1938_free(chip);
1573 }
1574
1575 static int __devinit snd_es1938_create(struct snd_card *card,
1576                                     struct pci_dev * pci,
1577                                     struct es1938 ** rchip)
1578 {
1579         struct es1938 *chip;
1580         int err;
1581         static struct snd_device_ops ops = {
1582                 .dev_free =     snd_es1938_dev_free,
1583         };
1584
1585         *rchip = NULL;
1586
1587         /* enable PCI device */
1588         if ((err = pci_enable_device(pci)) < 0)
1589                 return err;
1590         /* check, if we can restrict PCI DMA transfers to 24 bits */
1591         if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 ||
1592             pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) {
1593                 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
1594                 pci_disable_device(pci);
1595                 return -ENXIO;
1596         }
1597
1598         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1599         if (chip == NULL) {
1600                 pci_disable_device(pci);
1601                 return -ENOMEM;
1602         }
1603         spin_lock_init(&chip->reg_lock);
1604         spin_lock_init(&chip->mixer_lock);
1605         chip->card = card;
1606         chip->pci = pci;
1607         chip->irq = -1;
1608         if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) {
1609                 kfree(chip);
1610                 pci_disable_device(pci);
1611                 return err;
1612         }
1613         chip->io_port = pci_resource_start(pci, 0);
1614         chip->sb_port = pci_resource_start(pci, 1);
1615         chip->vc_port = pci_resource_start(pci, 2);
1616         chip->mpu_port = pci_resource_start(pci, 3);
1617         chip->game_port = pci_resource_start(pci, 4);
1618         if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_SHARED,
1619                         "ES1938", chip)) {
1620                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1621                 snd_es1938_free(chip);
1622                 return -EBUSY;
1623         }
1624         chip->irq = pci->irq;
1625 #ifdef ES1938_DDEBUG
1626         snd_printk(KERN_DEBUG "create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n",
1627                    chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port);
1628 #endif
1629
1630         chip->ddma_port = chip->vc_port + 0x00;         /* fix from Thomas Sailer */
1631
1632         snd_es1938_chip_init(chip);
1633
1634         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1635                 snd_es1938_free(chip);
1636                 return err;
1637         }
1638
1639         snd_card_set_dev(card, &pci->dev);
1640
1641         *rchip = chip;
1642         return 0;
1643 }
1644
1645 /* --------------------------------------------------------------------
1646  * Interrupt handler
1647  * -------------------------------------------------------------------- */
1648 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id)
1649 {
1650         struct es1938 *chip = dev_id;
1651         unsigned char status, audiostatus;
1652         int handled = 0;
1653
1654         status = inb(SLIO_REG(chip, IRQCONTROL));
1655 #if 0
1656         printk("Es1938debug - interrupt status: =0x%x\n", status);
1657 #endif
1658         
1659         /* AUDIO 1 */
1660         if (status & 0x10) {
1661 #if 0
1662                 printk("Es1938debug - AUDIO channel 1 interrupt\n");
1663                 printk("Es1938debug - AUDIO channel 1 DMAC DMA count: %u\n",
1664                        inw(SLDM_REG(chip, DMACOUNT)));
1665                 printk("Es1938debug - AUDIO channel 1 DMAC DMA base: %u\n",
1666                        inl(SLDM_REG(chip, DMAADDR)));
1667                 printk("Es1938debug - AUDIO channel 1 DMAC DMA status: 0x%x\n",
1668                        inl(SLDM_REG(chip, DMASTATUS)));
1669 #endif
1670                 /* clear irq */
1671                 handled = 1;
1672                 audiostatus = inb(SLSB_REG(chip, STATUS));
1673                 if (chip->active & ADC1)
1674                         snd_pcm_period_elapsed(chip->capture_substream);
1675                 else if (chip->active & DAC1)
1676                         snd_pcm_period_elapsed(chip->playback2_substream);
1677         }
1678         
1679         /* AUDIO 2 */
1680         if (status & 0x20) {
1681 #if 0
1682                 printk("Es1938debug - AUDIO channel 2 interrupt\n");
1683                 printk("Es1938debug - AUDIO channel 2 DMAC DMA count: %u\n",
1684                        inw(SLIO_REG(chip, AUDIO2DMACOUNT)));
1685                 printk("Es1938debug - AUDIO channel 2 DMAC DMA base: %u\n",
1686                        inl(SLIO_REG(chip, AUDIO2DMAADDR)));
1687
1688 #endif
1689                 /* clear irq */
1690                 handled = 1;
1691                 snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
1692                 if (chip->active & DAC2)
1693                         snd_pcm_period_elapsed(chip->playback1_substream);
1694         }
1695
1696         /* Hardware volume */
1697         if (status & 0x40) {
1698                 int split = snd_es1938_mixer_read(chip, 0x64) & 0x80;
1699                 handled = 1;
1700                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
1701                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
1702                 if (!split) {
1703                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1704                                        &chip->master_switch->id);
1705                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1706                                        &chip->master_volume->id);
1707                 }
1708                 /* ack interrupt */
1709                 snd_es1938_mixer_write(chip, 0x66, 0x00);
1710         }
1711
1712         /* MPU401 */
1713         if (status & 0x80) {
1714                 // the following line is evil! It switches off MIDI interrupt handling after the first interrupt received.
1715                 // replacing the last 0 by 0x40 works for ESS-Solo1, but just doing nothing works as well!
1716                 // andreas@flying-snail.de
1717                 // snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0); /* ack? */
1718                 if (chip->rmidi) {
1719                         handled = 1;
1720                         snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
1721                 }
1722         }
1723         return IRQ_RETVAL(handled);
1724 }
1725
1726 #define ES1938_DMA_SIZE 64
1727
1728 static int __devinit snd_es1938_mixer(struct es1938 *chip)
1729 {
1730         struct snd_card *card;
1731         unsigned int idx;
1732         int err;
1733
1734         card = chip->card;
1735
1736         strcpy(card->mixername, "ESS Solo-1");
1737
1738         for (idx = 0; idx < ARRAY_SIZE(snd_es1938_controls); idx++) {
1739                 struct snd_kcontrol *kctl;
1740                 kctl = snd_ctl_new1(&snd_es1938_controls[idx], chip);
1741                 switch (idx) {
1742                         case 0:
1743                                 chip->master_volume = kctl;
1744                                 kctl->private_free = snd_es1938_hwv_free;
1745                                 break;
1746                         case 1:
1747                                 chip->master_switch = kctl;
1748                                 kctl->private_free = snd_es1938_hwv_free;
1749                                 break;
1750                         case 2:
1751                                 chip->hw_volume = kctl;
1752                                 kctl->private_free = snd_es1938_hwv_free;
1753                                 break;
1754                         case 3:
1755                                 chip->hw_switch = kctl;
1756                                 kctl->private_free = snd_es1938_hwv_free;
1757                                 break;
1758                         }
1759                 if ((err = snd_ctl_add(card, kctl)) < 0)
1760                         return err;
1761         }
1762         return 0;
1763 }
1764        
1765
1766 static int __devinit snd_es1938_probe(struct pci_dev *pci,
1767                                       const struct pci_device_id *pci_id)
1768 {
1769         static int dev;
1770         struct snd_card *card;
1771         struct es1938 *chip;
1772         struct snd_opl3 *opl3;
1773         int idx, err;
1774
1775         if (dev >= SNDRV_CARDS)
1776                 return -ENODEV;
1777         if (!enable[dev]) {
1778                 dev++;
1779                 return -ENOENT;
1780         }
1781
1782         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1783         if (card == NULL)
1784                 return -ENOMEM;
1785         for (idx = 0; idx < 5; idx++) {
1786                 if (pci_resource_start(pci, idx) == 0 ||
1787                     !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
1788                         snd_card_free(card);
1789                         return -ENODEV;
1790                 }
1791         }
1792         if ((err = snd_es1938_create(card, pci, &chip)) < 0) {
1793                 snd_card_free(card);
1794                 return err;
1795         }
1796         card->private_data = chip;
1797
1798         strcpy(card->driver, "ES1938");
1799         strcpy(card->shortname, "ESS ES1938 (Solo-1)");
1800         sprintf(card->longname, "%s rev %i, irq %i",
1801                 card->shortname,
1802                 chip->revision,
1803                 chip->irq);
1804
1805         if ((err = snd_es1938_new_pcm(chip, 0)) < 0) {
1806                 snd_card_free(card);
1807                 return err;
1808         }
1809         if ((err = snd_es1938_mixer(chip)) < 0) {
1810                 snd_card_free(card);
1811                 return err;
1812         }
1813         if (snd_opl3_create(card,
1814                             SLSB_REG(chip, FMLOWADDR),
1815                             SLSB_REG(chip, FMHIGHADDR),
1816                             OPL3_HW_OPL3, 1, &opl3) < 0) {
1817                 printk(KERN_ERR "es1938: OPL3 not detected at 0x%lx\n",
1818                            SLSB_REG(chip, FMLOWADDR));
1819         } else {
1820                 if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
1821                         snd_card_free(card);
1822                         return err;
1823                 }
1824                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1825                         snd_card_free(card);
1826                         return err;
1827                 }
1828         }
1829         if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
1830                                 chip->mpu_port, MPU401_INFO_INTEGRATED,
1831                                 chip->irq, 0, &chip->rmidi) < 0) {
1832                 printk(KERN_ERR "es1938: unable to initialize MPU-401\n");
1833         } else {
1834                 // this line is vital for MIDI interrupt handling on ess-solo1
1835                 // andreas@flying-snail.de
1836                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);
1837         }
1838
1839         snd_es1938_create_gameport(chip);
1840
1841         if ((err = snd_card_register(card)) < 0) {
1842                 snd_card_free(card);
1843                 return err;
1844         }
1845
1846         pci_set_drvdata(pci, card);
1847         dev++;
1848         return 0;
1849 }
1850
1851 static void __devexit snd_es1938_remove(struct pci_dev *pci)
1852 {
1853         snd_card_free(pci_get_drvdata(pci));
1854         pci_set_drvdata(pci, NULL);
1855 }
1856
1857 static struct pci_driver driver = {
1858         .name = "ESS ES1938 (Solo-1)",
1859         .id_table = snd_es1938_ids,
1860         .probe = snd_es1938_probe,
1861         .remove = __devexit_p(snd_es1938_remove),
1862 #ifdef CONFIG_PM
1863         .suspend = es1938_suspend,
1864         .resume = es1938_resume,
1865 #endif
1866 };
1867
1868 static int __init alsa_card_es1938_init(void)
1869 {
1870         return pci_register_driver(&driver);
1871 }
1872
1873 static void __exit alsa_card_es1938_exit(void)
1874 {
1875         pci_unregister_driver(&driver);
1876 }
1877
1878 module_init(alsa_card_es1938_init)
1879 module_exit(alsa_card_es1938_exit)