[ALSA] Remove vmalloc wrapper, kfree_nocheck()
[linux-2.6.git] / sound / isa / es1688 / es1688_lib.c
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/ioport.h>
28 #include <sound/core.h>
29 #include <sound/es1688.h>
30 #include <sound/initval.h>
31
32 #include <asm/io.h>
33 #include <asm/dma.h>
34
35 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
36 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
37 MODULE_LICENSE("GPL");
38
39 static int snd_es1688_dsp_command(es1688_t *chip, unsigned char val)
40 {
41         int i;
42
43         for (i = 10000; i; i--)
44                 if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
45                         outb(val, ES1688P(chip, COMMAND));
46                         return 1;
47                 }
48 #ifdef CONFIG_SND_DEBUG
49         printk("snd_es1688_dsp_command: timeout (0x%x)\n", val);
50 #endif
51         return 0;
52 }
53
54 static int snd_es1688_dsp_get_byte(es1688_t *chip)
55 {
56         int i;
57
58         for (i = 1000; i; i--)
59                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
60                         return inb(ES1688P(chip, READ));
61         snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
62         return -ENODEV;
63 }
64
65 static int snd_es1688_write(es1688_t *chip,
66                             unsigned char reg, unsigned char data)
67 {
68         if (!snd_es1688_dsp_command(chip, reg))
69                 return 0;
70         return snd_es1688_dsp_command(chip, data);
71 }
72
73 static int snd_es1688_read(es1688_t *chip, unsigned char reg)
74 {
75         /* Read a byte from an extended mode register of ES1688 */
76         if (!snd_es1688_dsp_command(chip, 0xc0))
77                 return -1;
78         if (!snd_es1688_dsp_command(chip, reg))
79                 return -1;
80         return snd_es1688_dsp_get_byte(chip);
81 }
82
83 void snd_es1688_mixer_write(es1688_t *chip,
84                             unsigned char reg, unsigned char data)
85 {
86         outb(reg, ES1688P(chip, MIXER_ADDR));
87         udelay(10);
88         outb(data, ES1688P(chip, MIXER_DATA));
89         udelay(10);
90 }
91
92 static unsigned char snd_es1688_mixer_read(es1688_t *chip, unsigned char reg)
93 {
94         unsigned char result;
95
96         outb(reg, ES1688P(chip, MIXER_ADDR));
97         udelay(10);
98         result = inb(ES1688P(chip, MIXER_DATA));
99         udelay(10);
100         return result;
101 }
102
103 static int snd_es1688_reset(es1688_t *chip)
104 {
105         int i;
106
107         outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
108         udelay(10);
109         outb(0, ES1688P(chip, RESET));
110         udelay(30);
111         for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
112         if (inb(ES1688P(chip, READ)) != 0xaa) {
113                 snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
114                 return -ENODEV;
115         }
116         snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
117         return 0;
118 }
119
120 static int snd_es1688_probe(es1688_t *chip)
121 {
122         unsigned long flags;
123         unsigned short major, minor, hw;
124         int i;
125
126         /*
127          *  initialization sequence
128          */
129
130         spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
131         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
132         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
133         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
134         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
135         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
136         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
137         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
138         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
139         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
140         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
141         inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
142
143         if (snd_es1688_reset(chip) < 0) {
144                 snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
145                 spin_unlock_irqrestore(&chip->reg_lock, flags);
146                 return -ENODEV;
147         }
148         snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
149
150         for (i = 1000, major = minor = 0; i; i--) {
151                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
152                         if (major == 0) {
153                                 major = inb(ES1688P(chip, READ));
154                         } else {
155                                 minor = inb(ES1688P(chip, READ));
156                         }
157                 }
158         }
159
160         spin_unlock_irqrestore(&chip->reg_lock, flags);
161
162         snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
163
164         chip->version = (major << 8) | minor;
165         if (!chip->version)
166                 return -ENODEV; /* probably SB */
167
168         hw = ES1688_HW_AUTO;
169         switch (chip->version & 0xfff0) {
170         case 0x4880:
171                 snd_printk("[0x%lx] ESS: AudioDrive ES488 detected, but driver is in another place\n", chip->port);
172                 return -ENODEV;
173         case 0x6880:
174                 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
175                 break;
176         default:
177                 snd_printk("[0x%lx] ESS: unknown AudioDrive chip with version 0x%x (Jazz16 soundcard?)\n", chip->port, chip->version);
178                 return -ENODEV;
179         }
180
181         spin_lock_irqsave(&chip->reg_lock, flags);
182         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
183         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
184         spin_unlock_irqrestore(&chip->reg_lock, flags);
185
186         /* enable joystick, but disable OPL3 */
187         spin_lock_irqsave(&chip->mixer_lock, flags);
188         snd_es1688_mixer_write(chip, 0x40, 0x01);
189         spin_unlock_irqrestore(&chip->mixer_lock, flags);
190
191         return 0;
192 }
193
194 static int snd_es1688_init(es1688_t * chip, int enable)
195 {
196         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
197         unsigned long flags;
198         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
199
200         /* ok.. setup MPU-401 port and joystick and OPL3 */
201         cfg = 0x01;             /* enable joystick, but disable OPL3 */
202         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
203                 tmp = (chip->mpu_port & 0x0f0) >> 4;
204                 if (tmp <= 3) {
205                         switch (chip->mpu_irq) {
206                         case 9:
207                                 tmp1 = 4;
208                                 break;
209                         case 5:
210                                 tmp1 = 5;
211                                 break;
212                         case 7:
213                                 tmp1 = 6;
214                                 break;
215                         case 10:
216                                 tmp1 = 7;
217                                 break;
218                         default:
219                                 tmp1 = 0;
220                         }
221                         if (tmp1) {
222                                 cfg |= (tmp << 3) | (tmp1 << 5);
223                         }
224                 }
225         }
226 #if 0
227         snd_printk("mpu cfg = 0x%x\n", cfg);
228 #endif
229         spin_lock_irqsave(&chip->reg_lock, flags);
230         snd_es1688_mixer_write(chip, 0x40, cfg);
231         spin_unlock_irqrestore(&chip->reg_lock, flags);
232         /* --- */
233         spin_lock_irqsave(&chip->reg_lock, flags);
234         snd_es1688_read(chip, 0xb1);
235         snd_es1688_read(chip, 0xb2);
236         spin_unlock_irqrestore(&chip->reg_lock, flags);
237         if (enable) {
238                 cfg = 0xf0;     /* enable only DMA counter interrupt */
239                 irq_bits = irqs[chip->irq & 0x0f];
240                 if (irq_bits < 0) {
241                         snd_printk("[0x%lx] ESS: bad IRQ %d for ES1688 chip!!\n", chip->port, chip->irq);
242 #if 0
243                         irq_bits = 0;
244                         cfg = 0x10;
245 #endif
246                         return -EINVAL;
247                 }
248                 spin_lock_irqsave(&chip->reg_lock, flags);
249                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
250                 spin_unlock_irqrestore(&chip->reg_lock, flags);
251                 cfg = 0xf0;     /* extended mode DMA enable */
252                 dma = chip->dma8;
253                 if (dma > 3 || dma == 2) {
254                         snd_printk("[0x%lx] ESS: bad DMA channel %d for ES1688 chip!!\n", chip->port, dma);
255 #if 0
256                         dma_bits = 0;
257                         cfg = 0x00;     /* disable all DMA */
258 #endif
259                         return -EINVAL;
260                 } else {
261                         dma_bits = dma;
262                         if (dma != 3)
263                                 dma_bits++;
264                 }
265                 spin_lock_irqsave(&chip->reg_lock, flags);
266                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
267                 spin_unlock_irqrestore(&chip->reg_lock, flags);
268         } else {
269                 spin_lock_irqsave(&chip->reg_lock, flags);
270                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
271                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
272                 spin_unlock_irqrestore(&chip->reg_lock, flags);
273         }
274         spin_lock_irqsave(&chip->reg_lock, flags);
275         snd_es1688_read(chip, 0xb1);
276         snd_es1688_read(chip, 0xb2);
277         snd_es1688_reset(chip);
278         spin_unlock_irqrestore(&chip->reg_lock, flags);
279         return 0;
280 }
281
282 /*
283
284  */
285
286 static ratnum_t clocks[2] = {
287         {
288                 .num = 795444,
289                 .den_min = 1,
290                 .den_max = 128,
291                 .den_step = 1,
292         },
293         {
294                 .num = 397722,
295                 .den_min = 1,
296                 .den_max = 128,
297                 .den_step = 1,
298         }
299 };
300
301 static snd_pcm_hw_constraint_ratnums_t hw_constraints_clocks  = {
302         .nrats = 2,
303         .rats = clocks,
304 };
305
306 static void snd_es1688_set_rate(es1688_t *chip, snd_pcm_substream_t *substream)
307 {
308         snd_pcm_runtime_t *runtime = substream->runtime;
309         unsigned int bits, divider;
310
311         if (runtime->rate_num == clocks[0].num)
312                 bits = 256 - runtime->rate_den;
313         else
314                 bits = 128 - runtime->rate_den;
315         /* set filter register */
316         divider = 256 - 7160000*20/(8*82*runtime->rate);
317         /* write result to hardware */
318         snd_es1688_write(chip, 0xa1, bits);
319         snd_es1688_write(chip, 0xa2, divider);
320 }
321
322 static int snd_es1688_ioctl(snd_pcm_substream_t * substream,
323                             unsigned int cmd, void *arg)
324 {
325         return snd_pcm_lib_ioctl(substream, cmd, arg);
326 }
327
328 static int snd_es1688_trigger(es1688_t *chip, int cmd, unsigned char value)
329 {
330         int val;
331
332         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
333                 value = 0x00;
334         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
335                 return -EINVAL;
336         }
337         spin_lock(&chip->reg_lock);
338         chip->trigger_value = value;
339         val = snd_es1688_read(chip, 0xb8);
340         if ((val < 0) || (val & 0x0f) == value) {
341                 spin_unlock(&chip->reg_lock);
342                 return -EINVAL; /* something is wrong */
343         }
344 #if 0
345         printk("trigger: val = 0x%x, value = 0x%x\n", val, value);
346         printk("trigger: pointer = 0x%x\n", snd_dma_pointer(chip->dma8, chip->dma_size));
347 #endif
348         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
349         spin_unlock(&chip->reg_lock);
350         return 0;
351 }
352
353 static int snd_es1688_hw_params(snd_pcm_substream_t * substream,
354                                 snd_pcm_hw_params_t * hw_params)
355 {
356         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
357 }
358
359 static int snd_es1688_hw_free(snd_pcm_substream_t * substream)
360 {
361         return snd_pcm_lib_free_pages(substream);
362 }
363
364 static int snd_es1688_playback_prepare(snd_pcm_substream_t * substream)
365 {
366         unsigned long flags;
367         es1688_t *chip = snd_pcm_substream_chip(substream);
368         snd_pcm_runtime_t *runtime = substream->runtime;
369         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
370         unsigned int count = snd_pcm_lib_period_bytes(substream);
371
372         chip->dma_size = size;
373         spin_lock_irqsave(&chip->reg_lock, flags);
374         snd_es1688_reset(chip);
375         snd_es1688_set_rate(chip, substream);
376         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
377         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
378         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
379         if (runtime->channels == 1) {
380                 if (snd_pcm_format_width(runtime->format) == 8) {
381                         /* 8. bit mono */
382                         snd_es1688_write(chip, 0xb6, 0x80);
383                         snd_es1688_write(chip, 0xb7, 0x51);
384                         snd_es1688_write(chip, 0xb7, 0xd0);
385                 } else {
386                         /* 16. bit mono */
387                         snd_es1688_write(chip, 0xb6, 0x00);
388                         snd_es1688_write(chip, 0xb7, 0x71);
389                         snd_es1688_write(chip, 0xb7, 0xf4);
390                 }
391         } else {
392                 if (snd_pcm_format_width(runtime->format) == 8) {
393                         /* 8. bit stereo */
394                         snd_es1688_write(chip, 0xb6, 0x80);
395                         snd_es1688_write(chip, 0xb7, 0x51);
396                         snd_es1688_write(chip, 0xb7, 0x98);
397                 } else {
398                         /* 16. bit stereo */
399                         snd_es1688_write(chip, 0xb6, 0x00);
400                         snd_es1688_write(chip, 0xb7, 0x71);
401                         snd_es1688_write(chip, 0xb7, 0xbc);
402                 }
403         }
404         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
405         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
406         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
407         spin_unlock_irqrestore(&chip->reg_lock, flags);
408         /* --- */
409         count = -count;
410         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
411         spin_lock_irqsave(&chip->reg_lock, flags);
412         snd_es1688_write(chip, 0xa4, (unsigned char) count);
413         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
414         spin_unlock_irqrestore(&chip->reg_lock, flags);
415         return 0;
416 }
417
418 static int snd_es1688_playback_trigger(snd_pcm_substream_t * substream,
419                                        int cmd)
420 {
421         es1688_t *chip = snd_pcm_substream_chip(substream);
422         return snd_es1688_trigger(chip, cmd, 0x05);
423 }
424
425 static int snd_es1688_capture_prepare(snd_pcm_substream_t * substream)
426 {
427         unsigned long flags;
428         es1688_t *chip = snd_pcm_substream_chip(substream);
429         snd_pcm_runtime_t *runtime = substream->runtime;
430         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
431         unsigned int count = snd_pcm_lib_period_bytes(substream);
432
433         chip->dma_size = size;
434         spin_lock_irqsave(&chip->reg_lock, flags);
435         snd_es1688_reset(chip);
436         snd_es1688_set_rate(chip, substream);
437         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
438         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
439         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
440         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
441         if (runtime->channels == 1) {
442                 if (snd_pcm_format_width(runtime->format) == 8) {
443                         /* 8. bit mono */
444                         snd_es1688_write(chip, 0xb7, 0x51);
445                         snd_es1688_write(chip, 0xb7, 0xd0);
446                 } else {
447                         /* 16. bit mono */
448                         snd_es1688_write(chip, 0xb7, 0x71);
449                         snd_es1688_write(chip, 0xb7, 0xf4);
450                 }
451         } else {
452                 if (snd_pcm_format_width(runtime->format) == 8) {
453                         /* 8. bit stereo */
454                         snd_es1688_write(chip, 0xb7, 0x51);
455                         snd_es1688_write(chip, 0xb7, 0x98);
456                 } else {
457                         /* 16. bit stereo */
458                         snd_es1688_write(chip, 0xb7, 0x71);
459                         snd_es1688_write(chip, 0xb7, 0xbc);
460                 }
461         }
462         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
463         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
464         spin_unlock_irqrestore(&chip->reg_lock, flags);
465         /* --- */
466         count = -count;
467         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
468         spin_lock_irqsave(&chip->reg_lock, flags);
469         snd_es1688_write(chip, 0xa4, (unsigned char) count);
470         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
471         spin_unlock_irqrestore(&chip->reg_lock, flags);
472         return 0;
473 }
474
475 static int snd_es1688_capture_trigger(snd_pcm_substream_t * substream,
476                                       int cmd)
477 {
478         es1688_t *chip = snd_pcm_substream_chip(substream);
479         return snd_es1688_trigger(chip, cmd, 0x0f);
480 }
481
482 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id, struct pt_regs *regs)
483 {
484         es1688_t *chip = dev_id;
485
486         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
487                 snd_pcm_period_elapsed(chip->playback_substream);
488         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
489                 snd_pcm_period_elapsed(chip->capture_substream);
490
491         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
492         return IRQ_HANDLED;
493 }
494
495 static snd_pcm_uframes_t snd_es1688_playback_pointer(snd_pcm_substream_t * substream)
496 {
497         es1688_t *chip = snd_pcm_substream_chip(substream);
498         size_t ptr;
499         
500         if (chip->trigger_value != 0x05)
501                 return 0;
502         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
503         return bytes_to_frames(substream->runtime, ptr);
504 }
505
506 static snd_pcm_uframes_t snd_es1688_capture_pointer(snd_pcm_substream_t * substream)
507 {
508         es1688_t *chip = snd_pcm_substream_chip(substream);
509         size_t ptr;
510         
511         if (chip->trigger_value != 0x0f)
512                 return 0;
513         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
514         return bytes_to_frames(substream->runtime, ptr);
515 }
516
517 /*
518
519  */
520
521 static snd_pcm_hardware_t snd_es1688_playback =
522 {
523         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
524                                  SNDRV_PCM_INFO_MMAP_VALID),
525         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
526         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
527         .rate_min =             4000,
528         .rate_max =             48000,
529         .channels_min =         1,
530         .channels_max =         2,
531         .buffer_bytes_max =     65536,
532         .period_bytes_min =     64,
533         .period_bytes_max =     65536,
534         .periods_min =          1,
535         .periods_max =          1024,
536         .fifo_size =            0,
537 };
538
539 static snd_pcm_hardware_t snd_es1688_capture =
540 {
541         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
542                                  SNDRV_PCM_INFO_MMAP_VALID),
543         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
544         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
545         .rate_min =             4000,
546         .rate_max =             48000,
547         .channels_min =         1,
548         .channels_max =         2,
549         .buffer_bytes_max =     65536,
550         .period_bytes_min =     64,
551         .period_bytes_max =     65536,
552         .periods_min =          1,
553         .periods_max =          1024,
554         .fifo_size =            0,
555 };
556
557 /*
558
559  */
560
561 static int snd_es1688_playback_open(snd_pcm_substream_t * substream)
562 {
563         es1688_t *chip = snd_pcm_substream_chip(substream);
564         snd_pcm_runtime_t *runtime = substream->runtime;
565
566         if (chip->capture_substream != NULL)
567                 return -EAGAIN;
568         chip->playback_substream = substream;
569         runtime->hw = snd_es1688_playback;
570         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
571                                       &hw_constraints_clocks);
572         return 0;
573 }
574
575 static int snd_es1688_capture_open(snd_pcm_substream_t * substream)
576 {
577         es1688_t *chip = snd_pcm_substream_chip(substream);
578         snd_pcm_runtime_t *runtime = substream->runtime;
579
580         if (chip->playback_substream != NULL)
581                 return -EAGAIN;
582         chip->capture_substream = substream;
583         runtime->hw = snd_es1688_capture;
584         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
585                                       &hw_constraints_clocks);
586         return 0;
587 }
588
589 static int snd_es1688_playback_close(snd_pcm_substream_t * substream)
590 {
591         es1688_t *chip = snd_pcm_substream_chip(substream);
592
593         chip->playback_substream = NULL;
594         return 0;
595 }
596
597 static int snd_es1688_capture_close(snd_pcm_substream_t * substream)
598 {
599         es1688_t *chip = snd_pcm_substream_chip(substream);
600
601         chip->capture_substream = NULL;
602         return 0;
603 }
604
605 static int snd_es1688_free(es1688_t *chip)
606 {
607         if (chip->res_port) {
608                 snd_es1688_init(chip, 0);
609                 release_and_free_resource(chip->res_port);
610         }
611         if (chip->irq >= 0)
612                 free_irq(chip->irq, (void *) chip);
613         if (chip->dma8 >= 0) {
614                 disable_dma(chip->dma8);
615                 free_dma(chip->dma8);
616         }
617         kfree(chip);
618         return 0;
619 }
620
621 static int snd_es1688_dev_free(snd_device_t *device)
622 {
623         es1688_t *chip = device->device_data;
624         return snd_es1688_free(chip);
625 }
626
627 static const char *snd_es1688_chip_id(es1688_t *chip)
628 {
629         static char tmp[16];
630         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
631         return tmp;
632 }
633
634 int snd_es1688_create(snd_card_t * card,
635                       unsigned long port,
636                       unsigned long mpu_port,
637                       int irq,
638                       int mpu_irq,
639                       int dma8,
640                       unsigned short hardware,
641                       es1688_t **rchip)
642 {
643         static snd_device_ops_t ops = {
644                 .dev_free =     snd_es1688_dev_free,
645         };
646                                 
647         es1688_t *chip;
648         int err;
649
650         *rchip = NULL;
651         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
652         if (chip == NULL)
653                 return -ENOMEM;
654         chip->irq = -1;
655         chip->dma8 = -1;
656         
657         if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
658                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
659                 snd_es1688_free(chip);
660                 return -EBUSY;
661         }
662         if (request_irq(irq, snd_es1688_interrupt, SA_INTERRUPT, "ES1688", (void *) chip)) {
663                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
664                 snd_es1688_free(chip);
665                 return -EBUSY;
666         }
667         chip->irq = irq;
668         if (request_dma(dma8, "ES1688")) {
669                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
670                 snd_es1688_free(chip);
671                 return -EBUSY;
672         }
673         chip->dma8 = dma8;
674
675         spin_lock_init(&chip->reg_lock);
676         spin_lock_init(&chip->mixer_lock);
677         chip->card = card;
678         chip->port = port;
679         mpu_port &= ~0x000f;
680         if (mpu_port < 0x300 || mpu_port > 0x330)
681                 mpu_port = 0;
682         chip->mpu_port = mpu_port;
683         chip->mpu_irq = mpu_irq;
684         chip->hardware = hardware;
685
686         if ((err = snd_es1688_probe(chip)) < 0) {
687                 snd_es1688_free(chip);
688                 return err;
689         }
690         if ((err = snd_es1688_init(chip, 1)) < 0) {
691                 snd_es1688_free(chip);
692                 return err;
693         }
694
695         /* Register device */
696         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
697                 snd_es1688_free(chip);
698                 return err;
699         }
700
701         *rchip = chip;
702         return 0;
703 }
704
705 static snd_pcm_ops_t snd_es1688_playback_ops = {
706         .open =                 snd_es1688_playback_open,
707         .close =                snd_es1688_playback_close,
708         .ioctl =                snd_es1688_ioctl,
709         .hw_params =            snd_es1688_hw_params,
710         .hw_free =              snd_es1688_hw_free,
711         .prepare =              snd_es1688_playback_prepare,
712         .trigger =              snd_es1688_playback_trigger,
713         .pointer =              snd_es1688_playback_pointer,
714 };
715
716 static snd_pcm_ops_t snd_es1688_capture_ops = {
717         .open =                 snd_es1688_capture_open,
718         .close =                snd_es1688_capture_close,
719         .ioctl =                snd_es1688_ioctl,
720         .hw_params =            snd_es1688_hw_params,
721         .hw_free =              snd_es1688_hw_free,
722         .prepare =              snd_es1688_capture_prepare,
723         .trigger =              snd_es1688_capture_trigger,
724         .pointer =              snd_es1688_capture_pointer,
725 };
726
727 static void snd_es1688_pcm_free(snd_pcm_t *pcm)
728 {
729         es1688_t *chip = pcm->private_data;
730         chip->pcm = NULL;
731         snd_pcm_lib_preallocate_free_for_all(pcm);
732 }
733
734 int snd_es1688_pcm(es1688_t * chip, int device, snd_pcm_t ** rpcm)
735 {
736         snd_pcm_t *pcm;
737         int err;
738
739         if ((err = snd_pcm_new(chip->card, "ESx688", device, 1, 1, &pcm)) < 0)
740                 return err;
741
742         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
743         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
744
745         pcm->private_data = chip;
746         pcm->private_free = snd_es1688_pcm_free;
747         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
748         sprintf(pcm->name, snd_es1688_chip_id(chip));
749         chip->pcm = pcm;
750
751         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
752                                               snd_dma_isa_data(),
753                                               64*1024, 64*1024);
754
755         if (rpcm)
756                 *rpcm = pcm;
757         return 0;
758 }
759
760 /*
761  *  MIXER part
762  */
763
764 static int snd_es1688_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
765 {
766         static char *texts[9] = {
767                 "Mic", "Mic Master", "CD", "AOUT",
768                 "Mic1", "Mix", "Line", "Master"
769         };
770
771         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
772         uinfo->count = 1;
773         uinfo->value.enumerated.items = 8;
774         if (uinfo->value.enumerated.item > 7)
775                 uinfo->value.enumerated.item = 7;
776         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
777         return 0;
778 }
779
780 static int snd_es1688_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
781 {
782         es1688_t *chip = snd_kcontrol_chip(kcontrol);
783         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
784         return 0;
785 }
786
787 static int snd_es1688_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
788 {
789         es1688_t *chip = snd_kcontrol_chip(kcontrol);
790         unsigned long flags;
791         unsigned char oval, nval;
792         int change;
793         
794         if (ucontrol->value.enumerated.item[0] > 8)
795                 return -EINVAL;
796         spin_lock_irqsave(&chip->reg_lock, flags);
797         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
798         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
799         change = nval != oval;
800         if (change)
801                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
802         spin_unlock_irqrestore(&chip->reg_lock, flags);
803         return change;
804 }
805
806 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
807 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
808   .info = snd_es1688_info_single, \
809   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
810   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
811
812 static int snd_es1688_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
813 {
814         int mask = (kcontrol->private_value >> 16) & 0xff;
815
816         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
817         uinfo->count = 1;
818         uinfo->value.integer.min = 0;
819         uinfo->value.integer.max = mask;
820         return 0;
821 }
822
823 static int snd_es1688_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
824 {
825         es1688_t *chip = snd_kcontrol_chip(kcontrol);
826         unsigned long flags;
827         int reg = kcontrol->private_value & 0xff;
828         int shift = (kcontrol->private_value >> 8) & 0xff;
829         int mask = (kcontrol->private_value >> 16) & 0xff;
830         int invert = (kcontrol->private_value >> 24) & 0xff;
831         
832         spin_lock_irqsave(&chip->reg_lock, flags);
833         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
834         spin_unlock_irqrestore(&chip->reg_lock, flags);
835         if (invert)
836                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
837         return 0;
838 }
839
840 static int snd_es1688_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
841 {
842         es1688_t *chip = snd_kcontrol_chip(kcontrol);
843         unsigned long flags;
844         int reg = kcontrol->private_value & 0xff;
845         int shift = (kcontrol->private_value >> 8) & 0xff;
846         int mask = (kcontrol->private_value >> 16) & 0xff;
847         int invert = (kcontrol->private_value >> 24) & 0xff;
848         int change;
849         unsigned char oval, nval;
850         
851         nval = (ucontrol->value.integer.value[0] & mask);
852         if (invert)
853                 nval = mask - nval;
854         nval <<= shift;
855         spin_lock_irqsave(&chip->reg_lock, flags);
856         oval = snd_es1688_mixer_read(chip, reg);
857         nval = (oval & ~(mask << shift)) | nval;
858         change = nval != oval;
859         if (change)
860                 snd_es1688_mixer_write(chip, reg, nval);
861         spin_unlock_irqrestore(&chip->reg_lock, flags);
862         return change;
863 }
864
865 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
866 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
867   .info = snd_es1688_info_double, \
868   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
869   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
870
871 static int snd_es1688_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
872 {
873         int mask = (kcontrol->private_value >> 24) & 0xff;
874
875         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
876         uinfo->count = 2;
877         uinfo->value.integer.min = 0;
878         uinfo->value.integer.max = mask;
879         return 0;
880 }
881
882 static int snd_es1688_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
883 {
884         es1688_t *chip = snd_kcontrol_chip(kcontrol);
885         unsigned long flags;
886         int left_reg = kcontrol->private_value & 0xff;
887         int right_reg = (kcontrol->private_value >> 8) & 0xff;
888         int shift_left = (kcontrol->private_value >> 16) & 0x07;
889         int shift_right = (kcontrol->private_value >> 19) & 0x07;
890         int mask = (kcontrol->private_value >> 24) & 0xff;
891         int invert = (kcontrol->private_value >> 22) & 1;
892         unsigned char left, right;
893         
894         spin_lock_irqsave(&chip->reg_lock, flags);
895         if (left_reg < 0xa0)
896                 left = snd_es1688_mixer_read(chip, left_reg);
897         else
898                 left = snd_es1688_read(chip, left_reg);
899         if (left_reg != right_reg) {
900                 if (right_reg < 0xa0) 
901                         right = snd_es1688_mixer_read(chip, right_reg);
902                 else
903                         right = snd_es1688_read(chip, right_reg);
904         } else
905                 right = left;
906         spin_unlock_irqrestore(&chip->reg_lock, flags);
907         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
908         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
909         if (invert) {
910                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
911                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
912         }
913         return 0;
914 }
915
916 static int snd_es1688_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
917 {
918         es1688_t *chip = snd_kcontrol_chip(kcontrol);
919         unsigned long flags;
920         int left_reg = kcontrol->private_value & 0xff;
921         int right_reg = (kcontrol->private_value >> 8) & 0xff;
922         int shift_left = (kcontrol->private_value >> 16) & 0x07;
923         int shift_right = (kcontrol->private_value >> 19) & 0x07;
924         int mask = (kcontrol->private_value >> 24) & 0xff;
925         int invert = (kcontrol->private_value >> 22) & 1;
926         int change;
927         unsigned char val1, val2, oval1, oval2;
928         
929         val1 = ucontrol->value.integer.value[0] & mask;
930         val2 = ucontrol->value.integer.value[1] & mask;
931         if (invert) {
932                 val1 = mask - val1;
933                 val2 = mask - val2;
934         }
935         val1 <<= shift_left;
936         val2 <<= shift_right;
937         spin_lock_irqsave(&chip->reg_lock, flags);
938         if (left_reg != right_reg) {
939                 if (left_reg < 0xa0)
940                         oval1 = snd_es1688_mixer_read(chip, left_reg);
941                 else
942                         oval1 = snd_es1688_read(chip, left_reg);
943                 if (right_reg < 0xa0)
944                         oval2 = snd_es1688_mixer_read(chip, right_reg);
945                 else
946                         oval2 = snd_es1688_read(chip, right_reg);
947                 val1 = (oval1 & ~(mask << shift_left)) | val1;
948                 val2 = (oval2 & ~(mask << shift_right)) | val2;
949                 change = val1 != oval1 || val2 != oval2;
950                 if (change) {
951                         if (left_reg < 0xa0)
952                                 snd_es1688_mixer_write(chip, left_reg, val1);
953                         else
954                                 snd_es1688_write(chip, left_reg, val1);
955                         if (right_reg < 0xa0)
956                                 snd_es1688_mixer_write(chip, right_reg, val1);
957                         else
958                                 snd_es1688_write(chip, right_reg, val1);
959                 }
960         } else {
961                 if (left_reg < 0xa0)
962                         oval1 = snd_es1688_mixer_read(chip, left_reg);
963                 else
964                         oval1 = snd_es1688_read(chip, left_reg);
965                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
966                 change = val1 != oval1;
967                 if (change) {
968                         if (left_reg < 0xa0)
969                                 snd_es1688_mixer_write(chip, left_reg, val1);
970                         else
971                                 snd_es1688_write(chip, left_reg, val1);
972                 }
973                         
974         }
975         spin_unlock_irqrestore(&chip->reg_lock, flags);
976         return change;
977 }
978
979 static snd_kcontrol_new_t snd_es1688_controls[] = {
980 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
981 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
982 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
983 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
984 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
985 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
986 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
987 ES1688_SINGLE("PC Speaker Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
988 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
989 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
990 {
991         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
992         .name = "Capture Source",
993         .info = snd_es1688_info_mux,
994         .get = snd_es1688_get_mux,
995         .put = snd_es1688_put_mux,
996 },
997 };
998
999 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
1000
1001 static unsigned char snd_es1688_init_table[][2] = {
1002         { ES1688_MASTER_DEV, 0 },
1003         { ES1688_PCM_DEV, 0 },
1004         { ES1688_LINE_DEV, 0 },
1005         { ES1688_CD_DEV, 0 },
1006         { ES1688_FM_DEV, 0 },
1007         { ES1688_MIC_DEV, 0 },
1008         { ES1688_AUX_DEV, 0 },
1009         { ES1688_SPEAKER_DEV, 0 },
1010         { ES1688_RECLEV_DEV, 0 },
1011         { ES1688_REC_DEV, 0x17 }
1012 };
1013                                         
1014 int snd_es1688_mixer(es1688_t *chip)
1015 {
1016         snd_card_t *card;
1017         unsigned int idx;
1018         int err;
1019         unsigned char reg, val;
1020
1021         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
1022
1023         card = chip->card;
1024
1025         strcpy(card->mixername, snd_es1688_chip_id(chip));
1026
1027         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1028                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1029                         return err;
1030         }
1031         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1032                 reg = snd_es1688_init_table[idx][0];
1033                 val = snd_es1688_init_table[idx][1];
1034                 if (reg < 0xa0)
1035                         snd_es1688_mixer_write(chip, reg, val);
1036                 else
1037                         snd_es1688_write(chip, reg, val);
1038         }
1039         return 0;
1040 }
1041
1042 EXPORT_SYMBOL(snd_es1688_mixer_write);
1043 EXPORT_SYMBOL(snd_es1688_create);
1044 EXPORT_SYMBOL(snd_es1688_pcm);
1045 EXPORT_SYMBOL(snd_es1688_mixer);
1046
1047 /*
1048  *  INIT part
1049  */
1050
1051 static int __init alsa_es1688_init(void)
1052 {
1053         return 0;
1054 }
1055
1056 static void __exit alsa_es1688_exit(void)
1057 {
1058 }
1059
1060 module_init(alsa_es1688_init)
1061 module_exit(alsa_es1688_exit)