Merge branch 'topic/ca0106' into for-linus
[sfrench/cifs-2.6.git] / sound / isa / es1688 / es1688_lib.c
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3  *  Routines for control of ESS ES1688/688/488 chip
4  *
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21
22 #include <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/delay.h>
25 #include <linux/slab.h>
26 #include <linux/ioport.h>
27 #include <sound/core.h>
28 #include <sound/es1688.h>
29 #include <sound/initval.h>
30
31 #include <asm/io.h>
32 #include <asm/dma.h>
33
34 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
35 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
36 MODULE_LICENSE("GPL");
37
38 static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val)
39 {
40         int i;
41
42         for (i = 10000; i; i--)
43                 if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
44                         outb(val, ES1688P(chip, COMMAND));
45                         return 1;
46                 }
47 #ifdef CONFIG_SND_DEBUG
48         printk("snd_es1688_dsp_command: timeout (0x%x)\n", val);
49 #endif
50         return 0;
51 }
52
53 static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip)
54 {
55         int i;
56
57         for (i = 1000; i; i--)
58                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
59                         return inb(ES1688P(chip, READ));
60         snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
61         return -ENODEV;
62 }
63
64 static int snd_es1688_write(struct snd_es1688 *chip,
65                             unsigned char reg, unsigned char data)
66 {
67         if (!snd_es1688_dsp_command(chip, reg))
68                 return 0;
69         return snd_es1688_dsp_command(chip, data);
70 }
71
72 static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg)
73 {
74         /* Read a byte from an extended mode register of ES1688 */
75         if (!snd_es1688_dsp_command(chip, 0xc0))
76                 return -1;
77         if (!snd_es1688_dsp_command(chip, reg))
78                 return -1;
79         return snd_es1688_dsp_get_byte(chip);
80 }
81
82 void snd_es1688_mixer_write(struct snd_es1688 *chip,
83                             unsigned char reg, unsigned char data)
84 {
85         outb(reg, ES1688P(chip, MIXER_ADDR));
86         udelay(10);
87         outb(data, ES1688P(chip, MIXER_DATA));
88         udelay(10);
89 }
90
91 static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg)
92 {
93         unsigned char result;
94
95         outb(reg, ES1688P(chip, MIXER_ADDR));
96         udelay(10);
97         result = inb(ES1688P(chip, MIXER_DATA));
98         udelay(10);
99         return result;
100 }
101
102 static int snd_es1688_reset(struct snd_es1688 *chip)
103 {
104         int i;
105
106         outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
107         udelay(10);
108         outb(0, ES1688P(chip, RESET));
109         udelay(30);
110         for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
111         if (inb(ES1688P(chip, READ)) != 0xaa) {
112                 snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
113                 return -ENODEV;
114         }
115         snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
116         return 0;
117 }
118
119 static int snd_es1688_probe(struct snd_es1688 *chip)
120 {
121         unsigned long flags;
122         unsigned short major, minor, hw;
123         int i;
124
125         /*
126          *  initialization sequence
127          */
128
129         spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
130         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
131         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
132         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
133         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
134         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
135         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
136         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
137         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
138         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
139         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
140         inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
141
142         if (snd_es1688_reset(chip) < 0) {
143                 snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
144                 spin_unlock_irqrestore(&chip->reg_lock, flags);
145                 return -ENODEV;
146         }
147         snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
148
149         for (i = 1000, major = minor = 0; i; i--) {
150                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
151                         if (major == 0) {
152                                 major = inb(ES1688P(chip, READ));
153                         } else {
154                                 minor = inb(ES1688P(chip, READ));
155                         }
156                 }
157         }
158
159         spin_unlock_irqrestore(&chip->reg_lock, flags);
160
161         snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
162
163         chip->version = (major << 8) | minor;
164         if (!chip->version)
165                 return -ENODEV; /* probably SB */
166
167         hw = ES1688_HW_AUTO;
168         switch (chip->version & 0xfff0) {
169         case 0x4880:
170                 snd_printk("[0x%lx] ESS: AudioDrive ES488 detected, but driver is in another place\n", chip->port);
171                 return -ENODEV;
172         case 0x6880:
173                 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
174                 break;
175         default:
176                 snd_printk("[0x%lx] ESS: unknown AudioDrive chip with version 0x%x (Jazz16 soundcard?)\n", chip->port, chip->version);
177                 return -ENODEV;
178         }
179
180         spin_lock_irqsave(&chip->reg_lock, flags);
181         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
182         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
183         spin_unlock_irqrestore(&chip->reg_lock, flags);
184
185         /* enable joystick, but disable OPL3 */
186         spin_lock_irqsave(&chip->mixer_lock, flags);
187         snd_es1688_mixer_write(chip, 0x40, 0x01);
188         spin_unlock_irqrestore(&chip->mixer_lock, flags);
189
190         return 0;
191 }
192
193 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
194 {
195         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
196         unsigned long flags;
197         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
198
199         /* ok.. setup MPU-401 port and joystick and OPL3 */
200         cfg = 0x01;             /* enable joystick, but disable OPL3 */
201         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
202                 tmp = (chip->mpu_port & 0x0f0) >> 4;
203                 if (tmp <= 3) {
204                         switch (chip->mpu_irq) {
205                         case 9:
206                                 tmp1 = 4;
207                                 break;
208                         case 5:
209                                 tmp1 = 5;
210                                 break;
211                         case 7:
212                                 tmp1 = 6;
213                                 break;
214                         case 10:
215                                 tmp1 = 7;
216                                 break;
217                         default:
218                                 tmp1 = 0;
219                         }
220                         if (tmp1) {
221                                 cfg |= (tmp << 3) | (tmp1 << 5);
222                         }
223                 }
224         }
225 #if 0
226         snd_printk("mpu cfg = 0x%x\n", cfg);
227 #endif
228         spin_lock_irqsave(&chip->reg_lock, flags);
229         snd_es1688_mixer_write(chip, 0x40, cfg);
230         spin_unlock_irqrestore(&chip->reg_lock, flags);
231         /* --- */
232         spin_lock_irqsave(&chip->reg_lock, flags);
233         snd_es1688_read(chip, 0xb1);
234         snd_es1688_read(chip, 0xb2);
235         spin_unlock_irqrestore(&chip->reg_lock, flags);
236         if (enable) {
237                 cfg = 0xf0;     /* enable only DMA counter interrupt */
238                 irq_bits = irqs[chip->irq & 0x0f];
239                 if (irq_bits < 0) {
240                         snd_printk("[0x%lx] ESS: bad IRQ %d for ES1688 chip!!\n", chip->port, chip->irq);
241 #if 0
242                         irq_bits = 0;
243                         cfg = 0x10;
244 #endif
245                         return -EINVAL;
246                 }
247                 spin_lock_irqsave(&chip->reg_lock, flags);
248                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
249                 spin_unlock_irqrestore(&chip->reg_lock, flags);
250                 cfg = 0xf0;     /* extended mode DMA enable */
251                 dma = chip->dma8;
252                 if (dma > 3 || dma == 2) {
253                         snd_printk("[0x%lx] ESS: bad DMA channel %d for ES1688 chip!!\n", chip->port, dma);
254 #if 0
255                         dma_bits = 0;
256                         cfg = 0x00;     /* disable all DMA */
257 #endif
258                         return -EINVAL;
259                 } else {
260                         dma_bits = dma;
261                         if (dma != 3)
262                                 dma_bits++;
263                 }
264                 spin_lock_irqsave(&chip->reg_lock, flags);
265                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
266                 spin_unlock_irqrestore(&chip->reg_lock, flags);
267         } else {
268                 spin_lock_irqsave(&chip->reg_lock, flags);
269                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
270                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
271                 spin_unlock_irqrestore(&chip->reg_lock, flags);
272         }
273         spin_lock_irqsave(&chip->reg_lock, flags);
274         snd_es1688_read(chip, 0xb1);
275         snd_es1688_read(chip, 0xb2);
276         snd_es1688_reset(chip);
277         spin_unlock_irqrestore(&chip->reg_lock, flags);
278         return 0;
279 }
280
281 /*
282
283  */
284
285 static struct snd_ratnum clocks[2] = {
286         {
287                 .num = 795444,
288                 .den_min = 1,
289                 .den_max = 128,
290                 .den_step = 1,
291         },
292         {
293                 .num = 397722,
294                 .den_min = 1,
295                 .den_max = 128,
296                 .den_step = 1,
297         }
298 };
299
300 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
301         .nrats = 2,
302         .rats = clocks,
303 };
304
305 static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
306 {
307         struct snd_pcm_runtime *runtime = substream->runtime;
308         unsigned int bits, divider;
309
310         if (runtime->rate_num == clocks[0].num)
311                 bits = 256 - runtime->rate_den;
312         else
313                 bits = 128 - runtime->rate_den;
314         /* set filter register */
315         divider = 256 - 7160000*20/(8*82*runtime->rate);
316         /* write result to hardware */
317         snd_es1688_write(chip, 0xa1, bits);
318         snd_es1688_write(chip, 0xa2, divider);
319 }
320
321 static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
322                             unsigned int cmd, void *arg)
323 {
324         return snd_pcm_lib_ioctl(substream, cmd, arg);
325 }
326
327 static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
328 {
329         int val;
330
331         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
332                 value = 0x00;
333         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
334                 return -EINVAL;
335         }
336         spin_lock(&chip->reg_lock);
337         chip->trigger_value = value;
338         val = snd_es1688_read(chip, 0xb8);
339         if ((val < 0) || (val & 0x0f) == value) {
340                 spin_unlock(&chip->reg_lock);
341                 return -EINVAL; /* something is wrong */
342         }
343 #if 0
344         printk("trigger: val = 0x%x, value = 0x%x\n", val, value);
345         printk("trigger: pointer = 0x%x\n", snd_dma_pointer(chip->dma8, chip->dma_size));
346 #endif
347         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
348         spin_unlock(&chip->reg_lock);
349         return 0;
350 }
351
352 static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
353                                 struct snd_pcm_hw_params *hw_params)
354 {
355         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
356 }
357
358 static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
359 {
360         return snd_pcm_lib_free_pages(substream);
361 }
362
363 static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
364 {
365         unsigned long flags;
366         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
367         struct snd_pcm_runtime *runtime = substream->runtime;
368         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
369         unsigned int count = snd_pcm_lib_period_bytes(substream);
370
371         chip->dma_size = size;
372         spin_lock_irqsave(&chip->reg_lock, flags);
373         snd_es1688_reset(chip);
374         snd_es1688_set_rate(chip, substream);
375         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
376         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
377         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
378         if (runtime->channels == 1) {
379                 if (snd_pcm_format_width(runtime->format) == 8) {
380                         /* 8. bit mono */
381                         snd_es1688_write(chip, 0xb6, 0x80);
382                         snd_es1688_write(chip, 0xb7, 0x51);
383                         snd_es1688_write(chip, 0xb7, 0xd0);
384                 } else {
385                         /* 16. bit mono */
386                         snd_es1688_write(chip, 0xb6, 0x00);
387                         snd_es1688_write(chip, 0xb7, 0x71);
388                         snd_es1688_write(chip, 0xb7, 0xf4);
389                 }
390         } else {
391                 if (snd_pcm_format_width(runtime->format) == 8) {
392                         /* 8. bit stereo */
393                         snd_es1688_write(chip, 0xb6, 0x80);
394                         snd_es1688_write(chip, 0xb7, 0x51);
395                         snd_es1688_write(chip, 0xb7, 0x98);
396                 } else {
397                         /* 16. bit stereo */
398                         snd_es1688_write(chip, 0xb6, 0x00);
399                         snd_es1688_write(chip, 0xb7, 0x71);
400                         snd_es1688_write(chip, 0xb7, 0xbc);
401                 }
402         }
403         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
404         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
405         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
406         spin_unlock_irqrestore(&chip->reg_lock, flags);
407         /* --- */
408         count = -count;
409         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
410         spin_lock_irqsave(&chip->reg_lock, flags);
411         snd_es1688_write(chip, 0xa4, (unsigned char) count);
412         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
413         spin_unlock_irqrestore(&chip->reg_lock, flags);
414         return 0;
415 }
416
417 static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
418                                        int cmd)
419 {
420         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
421         return snd_es1688_trigger(chip, cmd, 0x05);
422 }
423
424 static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
425 {
426         unsigned long flags;
427         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
428         struct snd_pcm_runtime *runtime = substream->runtime;
429         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
430         unsigned int count = snd_pcm_lib_period_bytes(substream);
431
432         chip->dma_size = size;
433         spin_lock_irqsave(&chip->reg_lock, flags);
434         snd_es1688_reset(chip);
435         snd_es1688_set_rate(chip, substream);
436         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
437         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
438         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
439         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
440         if (runtime->channels == 1) {
441                 if (snd_pcm_format_width(runtime->format) == 8) {
442                         /* 8. bit mono */
443                         snd_es1688_write(chip, 0xb7, 0x51);
444                         snd_es1688_write(chip, 0xb7, 0xd0);
445                 } else {
446                         /* 16. bit mono */
447                         snd_es1688_write(chip, 0xb7, 0x71);
448                         snd_es1688_write(chip, 0xb7, 0xf4);
449                 }
450         } else {
451                 if (snd_pcm_format_width(runtime->format) == 8) {
452                         /* 8. bit stereo */
453                         snd_es1688_write(chip, 0xb7, 0x51);
454                         snd_es1688_write(chip, 0xb7, 0x98);
455                 } else {
456                         /* 16. bit stereo */
457                         snd_es1688_write(chip, 0xb7, 0x71);
458                         snd_es1688_write(chip, 0xb7, 0xbc);
459                 }
460         }
461         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
462         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
463         spin_unlock_irqrestore(&chip->reg_lock, flags);
464         /* --- */
465         count = -count;
466         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
467         spin_lock_irqsave(&chip->reg_lock, flags);
468         snd_es1688_write(chip, 0xa4, (unsigned char) count);
469         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
470         spin_unlock_irqrestore(&chip->reg_lock, flags);
471         return 0;
472 }
473
474 static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
475                                       int cmd)
476 {
477         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
478         return snd_es1688_trigger(chip, cmd, 0x0f);
479 }
480
481 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
482 {
483         struct snd_es1688 *chip = dev_id;
484
485         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
486                 snd_pcm_period_elapsed(chip->playback_substream);
487         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
488                 snd_pcm_period_elapsed(chip->capture_substream);
489
490         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
491         return IRQ_HANDLED;
492 }
493
494 static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
495 {
496         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
497         size_t ptr;
498         
499         if (chip->trigger_value != 0x05)
500                 return 0;
501         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
502         return bytes_to_frames(substream->runtime, ptr);
503 }
504
505 static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
506 {
507         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
508         size_t ptr;
509         
510         if (chip->trigger_value != 0x0f)
511                 return 0;
512         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
513         return bytes_to_frames(substream->runtime, ptr);
514 }
515
516 /*
517
518  */
519
520 static struct snd_pcm_hardware snd_es1688_playback =
521 {
522         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
523                                  SNDRV_PCM_INFO_MMAP_VALID),
524         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
525         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
526         .rate_min =             4000,
527         .rate_max =             48000,
528         .channels_min =         1,
529         .channels_max =         2,
530         .buffer_bytes_max =     65536,
531         .period_bytes_min =     64,
532         .period_bytes_max =     65536,
533         .periods_min =          1,
534         .periods_max =          1024,
535         .fifo_size =            0,
536 };
537
538 static struct snd_pcm_hardware snd_es1688_capture =
539 {
540         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
541                                  SNDRV_PCM_INFO_MMAP_VALID),
542         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
543         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
544         .rate_min =             4000,
545         .rate_max =             48000,
546         .channels_min =         1,
547         .channels_max =         2,
548         .buffer_bytes_max =     65536,
549         .period_bytes_min =     64,
550         .period_bytes_max =     65536,
551         .periods_min =          1,
552         .periods_max =          1024,
553         .fifo_size =            0,
554 };
555
556 /*
557
558  */
559
560 static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
561 {
562         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
563         struct snd_pcm_runtime *runtime = substream->runtime;
564
565         if (chip->capture_substream != NULL)
566                 return -EAGAIN;
567         chip->playback_substream = substream;
568         runtime->hw = snd_es1688_playback;
569         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
570                                       &hw_constraints_clocks);
571         return 0;
572 }
573
574 static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
575 {
576         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
577         struct snd_pcm_runtime *runtime = substream->runtime;
578
579         if (chip->playback_substream != NULL)
580                 return -EAGAIN;
581         chip->capture_substream = substream;
582         runtime->hw = snd_es1688_capture;
583         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
584                                       &hw_constraints_clocks);
585         return 0;
586 }
587
588 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
589 {
590         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
591
592         chip->playback_substream = NULL;
593         return 0;
594 }
595
596 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
597 {
598         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
599
600         chip->capture_substream = NULL;
601         return 0;
602 }
603
604 static int snd_es1688_free(struct snd_es1688 *chip)
605 {
606         if (chip->res_port) {
607                 snd_es1688_init(chip, 0);
608                 release_and_free_resource(chip->res_port);
609         }
610         if (chip->irq >= 0)
611                 free_irq(chip->irq, (void *) chip);
612         if (chip->dma8 >= 0) {
613                 disable_dma(chip->dma8);
614                 free_dma(chip->dma8);
615         }
616         kfree(chip);
617         return 0;
618 }
619
620 static int snd_es1688_dev_free(struct snd_device *device)
621 {
622         struct snd_es1688 *chip = device->device_data;
623         return snd_es1688_free(chip);
624 }
625
626 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
627 {
628         static char tmp[16];
629         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
630         return tmp;
631 }
632
633 int snd_es1688_create(struct snd_card *card,
634                       unsigned long port,
635                       unsigned long mpu_port,
636                       int irq,
637                       int mpu_irq,
638                       int dma8,
639                       unsigned short hardware,
640                       struct snd_es1688 **rchip)
641 {
642         static struct snd_device_ops ops = {
643                 .dev_free =     snd_es1688_dev_free,
644         };
645                                 
646         struct snd_es1688 *chip;
647         int err;
648
649         *rchip = NULL;
650         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
651         if (chip == NULL)
652                 return -ENOMEM;
653         chip->irq = -1;
654         chip->dma8 = -1;
655         
656         if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
657                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
658                 snd_es1688_free(chip);
659                 return -EBUSY;
660         }
661         if (request_irq(irq, snd_es1688_interrupt, IRQF_DISABLED, "ES1688", (void *) chip)) {
662                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
663                 snd_es1688_free(chip);
664                 return -EBUSY;
665         }
666         chip->irq = irq;
667         if (request_dma(dma8, "ES1688")) {
668                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
669                 snd_es1688_free(chip);
670                 return -EBUSY;
671         }
672         chip->dma8 = dma8;
673
674         spin_lock_init(&chip->reg_lock);
675         spin_lock_init(&chip->mixer_lock);
676         chip->card = card;
677         chip->port = port;
678         mpu_port &= ~0x000f;
679         if (mpu_port < 0x300 || mpu_port > 0x330)
680                 mpu_port = 0;
681         chip->mpu_port = mpu_port;
682         chip->mpu_irq = mpu_irq;
683         chip->hardware = hardware;
684
685         if ((err = snd_es1688_probe(chip)) < 0) {
686                 snd_es1688_free(chip);
687                 return err;
688         }
689         if ((err = snd_es1688_init(chip, 1)) < 0) {
690                 snd_es1688_free(chip);
691                 return err;
692         }
693
694         /* Register device */
695         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
696                 snd_es1688_free(chip);
697                 return err;
698         }
699
700         *rchip = chip;
701         return 0;
702 }
703
704 static struct snd_pcm_ops snd_es1688_playback_ops = {
705         .open =                 snd_es1688_playback_open,
706         .close =                snd_es1688_playback_close,
707         .ioctl =                snd_es1688_ioctl,
708         .hw_params =            snd_es1688_hw_params,
709         .hw_free =              snd_es1688_hw_free,
710         .prepare =              snd_es1688_playback_prepare,
711         .trigger =              snd_es1688_playback_trigger,
712         .pointer =              snd_es1688_playback_pointer,
713 };
714
715 static struct snd_pcm_ops snd_es1688_capture_ops = {
716         .open =                 snd_es1688_capture_open,
717         .close =                snd_es1688_capture_close,
718         .ioctl =                snd_es1688_ioctl,
719         .hw_params =            snd_es1688_hw_params,
720         .hw_free =              snd_es1688_hw_free,
721         .prepare =              snd_es1688_capture_prepare,
722         .trigger =              snd_es1688_capture_trigger,
723         .pointer =              snd_es1688_capture_pointer,
724 };
725
726 int snd_es1688_pcm(struct snd_es1688 * chip, int device, struct snd_pcm ** rpcm)
727 {
728         struct snd_pcm *pcm;
729         int err;
730
731         if ((err = snd_pcm_new(chip->card, "ESx688", device, 1, 1, &pcm)) < 0)
732                 return err;
733
734         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
735         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
736
737         pcm->private_data = chip;
738         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
739         sprintf(pcm->name, snd_es1688_chip_id(chip));
740         chip->pcm = pcm;
741
742         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
743                                               snd_dma_isa_data(),
744                                               64*1024, 64*1024);
745
746         if (rpcm)
747                 *rpcm = pcm;
748         return 0;
749 }
750
751 /*
752  *  MIXER part
753  */
754
755 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
756 {
757         static char *texts[9] = {
758                 "Mic", "Mic Master", "CD", "AOUT",
759                 "Mic1", "Mix", "Line", "Master"
760         };
761
762         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
763         uinfo->count = 1;
764         uinfo->value.enumerated.items = 8;
765         if (uinfo->value.enumerated.item > 7)
766                 uinfo->value.enumerated.item = 7;
767         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
768         return 0;
769 }
770
771 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
772 {
773         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
774         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
775         return 0;
776 }
777
778 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
779 {
780         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
781         unsigned long flags;
782         unsigned char oval, nval;
783         int change;
784         
785         if (ucontrol->value.enumerated.item[0] > 8)
786                 return -EINVAL;
787         spin_lock_irqsave(&chip->reg_lock, flags);
788         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
789         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
790         change = nval != oval;
791         if (change)
792                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
793         spin_unlock_irqrestore(&chip->reg_lock, flags);
794         return change;
795 }
796
797 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
798 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
799   .info = snd_es1688_info_single, \
800   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
801   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
802
803 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
804 {
805         int mask = (kcontrol->private_value >> 16) & 0xff;
806
807         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
808         uinfo->count = 1;
809         uinfo->value.integer.min = 0;
810         uinfo->value.integer.max = mask;
811         return 0;
812 }
813
814 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
815 {
816         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
817         unsigned long flags;
818         int reg = kcontrol->private_value & 0xff;
819         int shift = (kcontrol->private_value >> 8) & 0xff;
820         int mask = (kcontrol->private_value >> 16) & 0xff;
821         int invert = (kcontrol->private_value >> 24) & 0xff;
822         
823         spin_lock_irqsave(&chip->reg_lock, flags);
824         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
825         spin_unlock_irqrestore(&chip->reg_lock, flags);
826         if (invert)
827                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
828         return 0;
829 }
830
831 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
832 {
833         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
834         unsigned long flags;
835         int reg = kcontrol->private_value & 0xff;
836         int shift = (kcontrol->private_value >> 8) & 0xff;
837         int mask = (kcontrol->private_value >> 16) & 0xff;
838         int invert = (kcontrol->private_value >> 24) & 0xff;
839         int change;
840         unsigned char oval, nval;
841         
842         nval = (ucontrol->value.integer.value[0] & mask);
843         if (invert)
844                 nval = mask - nval;
845         nval <<= shift;
846         spin_lock_irqsave(&chip->reg_lock, flags);
847         oval = snd_es1688_mixer_read(chip, reg);
848         nval = (oval & ~(mask << shift)) | nval;
849         change = nval != oval;
850         if (change)
851                 snd_es1688_mixer_write(chip, reg, nval);
852         spin_unlock_irqrestore(&chip->reg_lock, flags);
853         return change;
854 }
855
856 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
857 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
858   .info = snd_es1688_info_double, \
859   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
860   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
861
862 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
863 {
864         int mask = (kcontrol->private_value >> 24) & 0xff;
865
866         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
867         uinfo->count = 2;
868         uinfo->value.integer.min = 0;
869         uinfo->value.integer.max = mask;
870         return 0;
871 }
872
873 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
874 {
875         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
876         unsigned long flags;
877         int left_reg = kcontrol->private_value & 0xff;
878         int right_reg = (kcontrol->private_value >> 8) & 0xff;
879         int shift_left = (kcontrol->private_value >> 16) & 0x07;
880         int shift_right = (kcontrol->private_value >> 19) & 0x07;
881         int mask = (kcontrol->private_value >> 24) & 0xff;
882         int invert = (kcontrol->private_value >> 22) & 1;
883         unsigned char left, right;
884         
885         spin_lock_irqsave(&chip->reg_lock, flags);
886         if (left_reg < 0xa0)
887                 left = snd_es1688_mixer_read(chip, left_reg);
888         else
889                 left = snd_es1688_read(chip, left_reg);
890         if (left_reg != right_reg) {
891                 if (right_reg < 0xa0) 
892                         right = snd_es1688_mixer_read(chip, right_reg);
893                 else
894                         right = snd_es1688_read(chip, right_reg);
895         } else
896                 right = left;
897         spin_unlock_irqrestore(&chip->reg_lock, flags);
898         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
899         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
900         if (invert) {
901                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
902                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
903         }
904         return 0;
905 }
906
907 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
908 {
909         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
910         unsigned long flags;
911         int left_reg = kcontrol->private_value & 0xff;
912         int right_reg = (kcontrol->private_value >> 8) & 0xff;
913         int shift_left = (kcontrol->private_value >> 16) & 0x07;
914         int shift_right = (kcontrol->private_value >> 19) & 0x07;
915         int mask = (kcontrol->private_value >> 24) & 0xff;
916         int invert = (kcontrol->private_value >> 22) & 1;
917         int change;
918         unsigned char val1, val2, oval1, oval2;
919         
920         val1 = ucontrol->value.integer.value[0] & mask;
921         val2 = ucontrol->value.integer.value[1] & mask;
922         if (invert) {
923                 val1 = mask - val1;
924                 val2 = mask - val2;
925         }
926         val1 <<= shift_left;
927         val2 <<= shift_right;
928         spin_lock_irqsave(&chip->reg_lock, flags);
929         if (left_reg != right_reg) {
930                 if (left_reg < 0xa0)
931                         oval1 = snd_es1688_mixer_read(chip, left_reg);
932                 else
933                         oval1 = snd_es1688_read(chip, left_reg);
934                 if (right_reg < 0xa0)
935                         oval2 = snd_es1688_mixer_read(chip, right_reg);
936                 else
937                         oval2 = snd_es1688_read(chip, right_reg);
938                 val1 = (oval1 & ~(mask << shift_left)) | val1;
939                 val2 = (oval2 & ~(mask << shift_right)) | val2;
940                 change = val1 != oval1 || val2 != oval2;
941                 if (change) {
942                         if (left_reg < 0xa0)
943                                 snd_es1688_mixer_write(chip, left_reg, val1);
944                         else
945                                 snd_es1688_write(chip, left_reg, val1);
946                         if (right_reg < 0xa0)
947                                 snd_es1688_mixer_write(chip, right_reg, val1);
948                         else
949                                 snd_es1688_write(chip, right_reg, val1);
950                 }
951         } else {
952                 if (left_reg < 0xa0)
953                         oval1 = snd_es1688_mixer_read(chip, left_reg);
954                 else
955                         oval1 = snd_es1688_read(chip, left_reg);
956                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
957                 change = val1 != oval1;
958                 if (change) {
959                         if (left_reg < 0xa0)
960                                 snd_es1688_mixer_write(chip, left_reg, val1);
961                         else
962                                 snd_es1688_write(chip, left_reg, val1);
963                 }
964                         
965         }
966         spin_unlock_irqrestore(&chip->reg_lock, flags);
967         return change;
968 }
969
970 static struct snd_kcontrol_new snd_es1688_controls[] = {
971 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
972 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
973 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
974 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
975 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
976 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
977 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
978 ES1688_SINGLE("PC Speaker Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
979 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
980 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
981 {
982         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
983         .name = "Capture Source",
984         .info = snd_es1688_info_mux,
985         .get = snd_es1688_get_mux,
986         .put = snd_es1688_put_mux,
987 },
988 };
989
990 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
991
992 static unsigned char snd_es1688_init_table[][2] = {
993         { ES1688_MASTER_DEV, 0 },
994         { ES1688_PCM_DEV, 0 },
995         { ES1688_LINE_DEV, 0 },
996         { ES1688_CD_DEV, 0 },
997         { ES1688_FM_DEV, 0 },
998         { ES1688_MIC_DEV, 0 },
999         { ES1688_AUX_DEV, 0 },
1000         { ES1688_SPEAKER_DEV, 0 },
1001         { ES1688_RECLEV_DEV, 0 },
1002         { ES1688_REC_DEV, 0x17 }
1003 };
1004                                         
1005 int snd_es1688_mixer(struct snd_es1688 *chip)
1006 {
1007         struct snd_card *card;
1008         unsigned int idx;
1009         int err;
1010         unsigned char reg, val;
1011
1012         if (snd_BUG_ON(!chip || !chip->card))
1013                 return -EINVAL;
1014
1015         card = chip->card;
1016
1017         strcpy(card->mixername, snd_es1688_chip_id(chip));
1018
1019         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1020                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1021                         return err;
1022         }
1023         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1024                 reg = snd_es1688_init_table[idx][0];
1025                 val = snd_es1688_init_table[idx][1];
1026                 if (reg < 0xa0)
1027                         snd_es1688_mixer_write(chip, reg, val);
1028                 else
1029                         snd_es1688_write(chip, reg, val);
1030         }
1031         return 0;
1032 }
1033
1034 EXPORT_SYMBOL(snd_es1688_mixer_write);
1035 EXPORT_SYMBOL(snd_es1688_create);
1036 EXPORT_SYMBOL(snd_es1688_pcm);
1037 EXPORT_SYMBOL(snd_es1688_mixer);
1038
1039 /*
1040  *  INIT part
1041  */
1042
1043 static int __init alsa_es1688_init(void)
1044 {
1045         return 0;
1046 }
1047
1048 static void __exit alsa_es1688_exit(void)
1049 {
1050 }
1051
1052 module_init(alsa_es1688_init)
1053 module_exit(alsa_es1688_exit)