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irda: remove unnecessary break after return
[linux-2.6/btrfs-unstable.git] / sound / isa / es1688 / es1688_lib.c
blobb3b4f15e45baa850f0698828589b31673ccbeb6c
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 <linux/module.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@perex.cz>");
36 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
37 MODULE_LICENSE("GPL");
38
39 static int snd_es1688_dsp_command(struct snd_es1688 *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(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n", val);
50 #endif
51 return 0;
52 }
53
54 static int snd_es1688_dsp_get_byte(struct snd_es1688 *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(struct snd_es1688 *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(struct snd_es1688 *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(struct snd_es1688 *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(struct snd_es1688 *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 int snd_es1688_reset(struct snd_es1688 *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 EXPORT_SYMBOL(snd_es1688_reset);
120
121 static int snd_es1688_probe(struct snd_es1688 *chip)
122 {
123 unsigned long flags;
124 unsigned short major, minor, hw;
125 int i;
126
127 /*
128 * initialization sequence
129 */
130
131 spin_lock_irqsave(&chip->reg_lock, flags); /* Some ESS1688 cards need this */
132 inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
133 inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
134 inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
135 inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
136 inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
137 inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
138 inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
139 inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
140 inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
141 inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
142 inb(ES1688P(chip, ENABLE0)); /* ENABLE0 */
143
144 if (snd_es1688_reset(chip) < 0) {
145 snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
146 spin_unlock_irqrestore(&chip->reg_lock, flags);
147 return -ENODEV;
148 }
149 snd_es1688_dsp_command(chip, 0xe7); /* return identification */
150
151 for (i = 1000, major = minor = 0; i; i--) {
152 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
153 if (major == 0) {
154 major = inb(ES1688P(chip, READ));
155 } else {
156 minor = inb(ES1688P(chip, READ));
157 }
158 }
159 }
160
161 spin_unlock_irqrestore(&chip->reg_lock, flags);
162
163 snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
164
165 chip->version = (major << 8) | minor;
166 if (!chip->version)
167 return -ENODEV; /* probably SB */
168
169 hw = ES1688_HW_AUTO;
170 switch (chip->version & 0xfff0) {
171 case 0x4880:
172 snd_printk(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, "
173 "but driver is in another place\n", chip->port);
174 return -ENODEV;
175 case 0x6880:
176 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
177 break;
178 default:
179 snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip "
180 "with version 0x%x (Jazz16 soundcard?)\n",
181 chip->port, chip->version);
182 return -ENODEV;
183 }
184
185 spin_lock_irqsave(&chip->reg_lock, flags);
186 snd_es1688_write(chip, 0xb1, 0x10); /* disable IRQ */
187 snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
188 spin_unlock_irqrestore(&chip->reg_lock, flags);
189
190 /* enable joystick, but disable OPL3 */
191 spin_lock_irqsave(&chip->mixer_lock, flags);
192 snd_es1688_mixer_write(chip, 0x40, 0x01);
193 spin_unlock_irqrestore(&chip->mixer_lock, flags);
194
195 return 0;
196 }
197
198 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
199 {
200 static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
201 unsigned long flags;
202 int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
203
204 /* ok.. setup MPU-401 port and joystick and OPL3 */
205 cfg = 0x01; /* enable joystick, but disable OPL3 */
206 if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
207 tmp = (chip->mpu_port & 0x0f0) >> 4;
208 if (tmp <= 3) {
209 switch (chip->mpu_irq) {
210 case 9:
211 tmp1 = 4;
212 break;
213 case 5:
214 tmp1 = 5;
215 break;
216 case 7:
217 tmp1 = 6;
218 break;
219 case 10:
220 tmp1 = 7;
221 break;
222 default:
223 tmp1 = 0;
224 }
225 if (tmp1) {
226 cfg |= (tmp << 3) | (tmp1 << 5);
227 }
228 }
229 }
230 #if 0
231 snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n", cfg);
232 #endif
233 spin_lock_irqsave(&chip->reg_lock, flags);
234 snd_es1688_mixer_write(chip, 0x40, cfg);
235 spin_unlock_irqrestore(&chip->reg_lock, flags);
236 /* --- */
237 spin_lock_irqsave(&chip->reg_lock, flags);
238 snd_es1688_read(chip, 0xb1);
239 snd_es1688_read(chip, 0xb2);
240 spin_unlock_irqrestore(&chip->reg_lock, flags);
241 if (enable) {
242 cfg = 0xf0; /* enable only DMA counter interrupt */
243 irq_bits = irqs[chip->irq & 0x0f];
244 if (irq_bits < 0) {
245 snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d "
246 "for ES1688 chip!!\n",
247 chip->port, chip->irq);
248 #if 0
249 irq_bits = 0;
250 cfg = 0x10;
251 #endif
252 return -EINVAL;
253 }
254 spin_lock_irqsave(&chip->reg_lock, flags);
255 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
256 spin_unlock_irqrestore(&chip->reg_lock, flags);
257 cfg = 0xf0; /* extended mode DMA enable */
258 dma = chip->dma8;
259 if (dma > 3 || dma == 2) {
260 snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d "
261 "for ES1688 chip!!\n", chip->port, dma);
262 #if 0
263 dma_bits = 0;
264 cfg = 0x00; /* disable all DMA */
265 #endif
266 return -EINVAL;
267 } else {
268 dma_bits = dma;
269 if (dma != 3)
270 dma_bits++;
271 }
272 spin_lock_irqsave(&chip->reg_lock, flags);
273 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
274 spin_unlock_irqrestore(&chip->reg_lock, flags);
275 } else {
276 spin_lock_irqsave(&chip->reg_lock, flags);
277 snd_es1688_write(chip, 0xb1, 0x10); /* disable IRQ */
278 snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
279 spin_unlock_irqrestore(&chip->reg_lock, flags);
280 }
281 spin_lock_irqsave(&chip->reg_lock, flags);
282 snd_es1688_read(chip, 0xb1);
283 snd_es1688_read(chip, 0xb2);
284 snd_es1688_reset(chip);
285 spin_unlock_irqrestore(&chip->reg_lock, flags);
286 return 0;
287 }
288
289 /*
290
291 */
292
293 static struct snd_ratnum clocks[2] = {
294 {
295 .num = 795444,
296 .den_min = 1,
297 .den_max = 128,
298 .den_step = 1,
299 },
300 {
301 .num = 397722,
302 .den_min = 1,
303 .den_max = 128,
304 .den_step = 1,
305 }
306 };
307
308 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
309 .nrats = 2,
310 .rats = clocks,
311 };
312
313 static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
314 {
315 struct snd_pcm_runtime *runtime = substream->runtime;
316 unsigned int bits, divider;
317
318 if (runtime->rate_num == clocks[0].num)
319 bits = 256 - runtime->rate_den;
320 else
321 bits = 128 - runtime->rate_den;
322 /* set filter register */
323 divider = 256 - 7160000*20/(8*82*runtime->rate);
324 /* write result to hardware */
325 snd_es1688_write(chip, 0xa1, bits);
326 snd_es1688_write(chip, 0xa2, divider);
327 }
328
329 static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
330 unsigned int cmd, void *arg)
331 {
332 return snd_pcm_lib_ioctl(substream, cmd, arg);
333 }
334
335 static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
336 {
337 int val;
338
339 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
340 value = 0x00;
341 } else if (cmd != SNDRV_PCM_TRIGGER_START) {
342 return -EINVAL;
343 }
344 spin_lock(&chip->reg_lock);
345 chip->trigger_value = value;
346 val = snd_es1688_read(chip, 0xb8);
347 if ((val < 0) || (val & 0x0f) == value) {
348 spin_unlock(&chip->reg_lock);
349 return -EINVAL; /* something is wrong */
350 }
351 #if 0
352 printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n", val, value);
353 printk(KERN_DEBUG "trigger: pointer = 0x%x\n",
354 snd_dma_pointer(chip->dma8, chip->dma_size));
355 #endif
356 snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
357 spin_unlock(&chip->reg_lock);
358 return 0;
359 }
360
361 static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
362 struct snd_pcm_hw_params *hw_params)
363 {
364 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
365 }
366
367 static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
368 {
369 return snd_pcm_lib_free_pages(substream);
370 }
371
372 static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
373 {
374 unsigned long flags;
375 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
376 struct snd_pcm_runtime *runtime = substream->runtime;
377 unsigned int size = snd_pcm_lib_buffer_bytes(substream);
378 unsigned int count = snd_pcm_lib_period_bytes(substream);
379
380 chip->dma_size = size;
381 spin_lock_irqsave(&chip->reg_lock, flags);
382 snd_es1688_reset(chip);
383 snd_es1688_set_rate(chip, substream);
384 snd_es1688_write(chip, 0xb8, 4); /* auto init DMA mode */
385 snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
386 snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
387 if (runtime->channels == 1) {
388 if (snd_pcm_format_width(runtime->format) == 8) {
389 /* 8. bit mono */
390 snd_es1688_write(chip, 0xb6, 0x80);
391 snd_es1688_write(chip, 0xb7, 0x51);
392 snd_es1688_write(chip, 0xb7, 0xd0);
393 } else {
394 /* 16. bit mono */
395 snd_es1688_write(chip, 0xb6, 0x00);
396 snd_es1688_write(chip, 0xb7, 0x71);
397 snd_es1688_write(chip, 0xb7, 0xf4);
398 }
399 } else {
400 if (snd_pcm_format_width(runtime->format) == 8) {
401 /* 8. bit stereo */
402 snd_es1688_write(chip, 0xb6, 0x80);
403 snd_es1688_write(chip, 0xb7, 0x51);
404 snd_es1688_write(chip, 0xb7, 0x98);
405 } else {
406 /* 16. bit stereo */
407 snd_es1688_write(chip, 0xb6, 0x00);
408 snd_es1688_write(chip, 0xb7, 0x71);
409 snd_es1688_write(chip, 0xb7, 0xbc);
410 }
411 }
412 snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
413 snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
414 snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
415 spin_unlock_irqrestore(&chip->reg_lock, flags);
416 /* --- */
417 count = -count;
418 snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
419 spin_lock_irqsave(&chip->reg_lock, flags);
420 snd_es1688_write(chip, 0xa4, (unsigned char) count);
421 snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
422 spin_unlock_irqrestore(&chip->reg_lock, flags);
423 return 0;
424 }
425
426 static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
427 int cmd)
428 {
429 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
430 return snd_es1688_trigger(chip, cmd, 0x05);
431 }
432
433 static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
434 {
435 unsigned long flags;
436 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
437 struct snd_pcm_runtime *runtime = substream->runtime;
438 unsigned int size = snd_pcm_lib_buffer_bytes(substream);
439 unsigned int count = snd_pcm_lib_period_bytes(substream);
440
441 chip->dma_size = size;
442 spin_lock_irqsave(&chip->reg_lock, flags);
443 snd_es1688_reset(chip);
444 snd_es1688_set_rate(chip, substream);
445 snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
446 snd_es1688_write(chip, 0xb8, 0x0e); /* auto init DMA mode */
447 snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
448 snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
449 if (runtime->channels == 1) {
450 if (snd_pcm_format_width(runtime->format) == 8) {
451 /* 8. bit mono */
452 snd_es1688_write(chip, 0xb7, 0x51);
453 snd_es1688_write(chip, 0xb7, 0xd0);
454 } else {
455 /* 16. bit mono */
456 snd_es1688_write(chip, 0xb7, 0x71);
457 snd_es1688_write(chip, 0xb7, 0xf4);
458 }
459 } else {
460 if (snd_pcm_format_width(runtime->format) == 8) {
461 /* 8. bit stereo */
462 snd_es1688_write(chip, 0xb7, 0x51);
463 snd_es1688_write(chip, 0xb7, 0x98);
464 } else {
465 /* 16. bit stereo */
466 snd_es1688_write(chip, 0xb7, 0x71);
467 snd_es1688_write(chip, 0xb7, 0xbc);
468 }
469 }
470 snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
471 snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
472 spin_unlock_irqrestore(&chip->reg_lock, flags);
473 /* --- */
474 count = -count;
475 snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
476 spin_lock_irqsave(&chip->reg_lock, flags);
477 snd_es1688_write(chip, 0xa4, (unsigned char) count);
478 snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
479 spin_unlock_irqrestore(&chip->reg_lock, flags);
480 return 0;
481 }
482
483 static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
484 int cmd)
485 {
486 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
487 return snd_es1688_trigger(chip, cmd, 0x0f);
488 }
489
490 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
491 {
492 struct snd_es1688 *chip = dev_id;
493
494 if (chip->trigger_value == 0x05) /* ok.. playback is active */
495 snd_pcm_period_elapsed(chip->playback_substream);
496 if (chip->trigger_value == 0x0f) /* ok.. capture is active */
497 snd_pcm_period_elapsed(chip->capture_substream);
498
499 inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
500 return IRQ_HANDLED;
501 }
502
503 static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
504 {
505 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
506 size_t ptr;
507
508 if (chip->trigger_value != 0x05)
509 return 0;
510 ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
511 return bytes_to_frames(substream->runtime, ptr);
512 }
513
514 static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
515 {
516 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
517 size_t ptr;
518
519 if (chip->trigger_value != 0x0f)
520 return 0;
521 ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
522 return bytes_to_frames(substream->runtime, ptr);
523 }
524
525 /*
526
527 */
528
529 static struct snd_pcm_hardware snd_es1688_playback =
530 {
531 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
532 SNDRV_PCM_INFO_MMAP_VALID),
533 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
534 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
535 .rate_min = 4000,
536 .rate_max = 48000,
537 .channels_min = 1,
538 .channels_max = 2,
539 .buffer_bytes_max = 65536,
540 .period_bytes_min = 64,
541 .period_bytes_max = 65536,
542 .periods_min = 1,
543 .periods_max = 1024,
544 .fifo_size = 0,
545 };
546
547 static struct snd_pcm_hardware snd_es1688_capture =
548 {
549 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
550 SNDRV_PCM_INFO_MMAP_VALID),
551 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
552 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
553 .rate_min = 4000,
554 .rate_max = 48000,
555 .channels_min = 1,
556 .channels_max = 2,
557 .buffer_bytes_max = 65536,
558 .period_bytes_min = 64,
559 .period_bytes_max = 65536,
560 .periods_min = 1,
561 .periods_max = 1024,
562 .fifo_size = 0,
563 };
564
565 /*
566
567 */
568
569 static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
570 {
571 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
572 struct snd_pcm_runtime *runtime = substream->runtime;
573
574 if (chip->capture_substream != NULL)
575 return -EAGAIN;
576 chip->playback_substream = substream;
577 runtime->hw = snd_es1688_playback;
578 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
579 &hw_constraints_clocks);
580 return 0;
581 }
582
583 static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
584 {
585 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
586 struct snd_pcm_runtime *runtime = substream->runtime;
587
588 if (chip->playback_substream != NULL)
589 return -EAGAIN;
590 chip->capture_substream = substream;
591 runtime->hw = snd_es1688_capture;
592 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
593 &hw_constraints_clocks);
594 return 0;
595 }
596
597 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
598 {
599 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
600
601 chip->playback_substream = NULL;
602 return 0;
603 }
604
605 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
606 {
607 struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
608
609 chip->capture_substream = NULL;
610 return 0;
611 }
612
613 static int snd_es1688_free(struct snd_es1688 *chip)
614 {
615 if (chip->hardware != ES1688_HW_UNDEF)
616 snd_es1688_init(chip, 0);
617 if (chip->res_port)
618 release_and_free_resource(chip->res_port);
619 if (chip->irq >= 0)
620 free_irq(chip->irq, (void *) chip);
621 if (chip->dma8 >= 0) {
622 disable_dma(chip->dma8);
623 free_dma(chip->dma8);
624 }
625 return 0;
626 }
627
628 static int snd_es1688_dev_free(struct snd_device *device)
629 {
630 struct snd_es1688 *chip = device->device_data;
631 return snd_es1688_free(chip);
632 }
633
634 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
635 {
636 static char tmp[16];
637 sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
638 return tmp;
639 }
640
641 int snd_es1688_create(struct snd_card *card,
642 struct snd_es1688 *chip,
643 unsigned long port,
644 unsigned long mpu_port,
645 int irq,
646 int mpu_irq,
647 int dma8,
648 unsigned short hardware)
649 {
650 static struct snd_device_ops ops = {
651 .dev_free = snd_es1688_dev_free,
652 };
653
654 int err;
655
656 if (chip == NULL)
657 return -ENOMEM;
658 chip->irq = -1;
659 chip->dma8 = -1;
660 chip->hardware = ES1688_HW_UNDEF;
661
662 chip->res_port = request_region(port + 4, 12, "ES1688");
663 if (chip->res_port == NULL) {
664 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
665 err = -EBUSY;
666 goto exit;
667 }
668
669 err = request_irq(irq, snd_es1688_interrupt, 0, "ES1688", (void *) chip);
670 if (err < 0) {
671 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
672 goto exit;
673 }
674
675 chip->irq = irq;
676 err = request_dma(dma8, "ES1688");
677
678 if (err < 0) {
679 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
680 goto exit;
681 }
682 chip->dma8 = dma8;
683
684 spin_lock_init(&chip->reg_lock);
685 spin_lock_init(&chip->mixer_lock);
686 chip->port = port;
687 mpu_port &= ~0x000f;
688 if (mpu_port < 0x300 || mpu_port > 0x330)
689 mpu_port = 0;
690 chip->mpu_port = mpu_port;
691 chip->mpu_irq = mpu_irq;
692 chip->hardware = hardware;
693
694 err = snd_es1688_probe(chip);
695 if (err < 0)
696 goto exit;
697
698 err = snd_es1688_init(chip, 1);
699 if (err < 0)
700 goto exit;
701
702 /* Register device */
703 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
704 exit:
705 if (err)
706 snd_es1688_free(chip);
707 return err;
708 }
709
710 static struct snd_pcm_ops snd_es1688_playback_ops = {
711 .open = snd_es1688_playback_open,
712 .close = snd_es1688_playback_close,
713 .ioctl = snd_es1688_ioctl,
714 .hw_params = snd_es1688_hw_params,
715 .hw_free = snd_es1688_hw_free,
716 .prepare = snd_es1688_playback_prepare,
717 .trigger = snd_es1688_playback_trigger,
718 .pointer = snd_es1688_playback_pointer,
719 };
720
721 static struct snd_pcm_ops snd_es1688_capture_ops = {
722 .open = snd_es1688_capture_open,
723 .close = snd_es1688_capture_close,
724 .ioctl = snd_es1688_ioctl,
725 .hw_params = snd_es1688_hw_params,
726 .hw_free = snd_es1688_hw_free,
727 .prepare = snd_es1688_capture_prepare,
728 .trigger = snd_es1688_capture_trigger,
729 .pointer = snd_es1688_capture_pointer,
730 };
731
732 int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip,
733 int device, struct snd_pcm **rpcm)
734 {
735 struct snd_pcm *pcm;
736 int err;
737
738 err = snd_pcm_new(card, "ESx688", device, 1, 1, &pcm);
739 if (err < 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->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
747 sprintf(pcm->name, snd_es1688_chip_id(chip));
748 chip->pcm = pcm;
749
750 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
751 snd_dma_isa_data(),
752 64*1024, 64*1024);
753
754 if (rpcm)
755 *rpcm = pcm;
756 return 0;
757 }
758
759 /*
760 * MIXER part
761 */
762
763 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
764 {
765 static char *texts[9] = {
766 "Mic", "Mic Master", "CD", "AOUT",
767 "Mic1", "Mix", "Line", "Master"
768 };
769
770 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
771 uinfo->count = 1;
772 uinfo->value.enumerated.items = 8;
773 if (uinfo->value.enumerated.item > 7)
774 uinfo->value.enumerated.item = 7;
775 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
776 return 0;
777 }
778
779 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
780 {
781 struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
782 ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
783 return 0;
784 }
785
786 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
787 {
788 struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
789 unsigned long flags;
790 unsigned char oval, nval;
791 int change;
792
793 if (ucontrol->value.enumerated.item[0] > 8)
794 return -EINVAL;
795 spin_lock_irqsave(&chip->reg_lock, flags);
796 oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
797 nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
798 change = nval != oval;
799 if (change)
800 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
801 spin_unlock_irqrestore(&chip->reg_lock, flags);
802 return change;
803 }
804
805 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
806 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
807 .info = snd_es1688_info_single, \
808 .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
809 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
810
811 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
812 {
813 int mask = (kcontrol->private_value >> 16) & 0xff;
814
815 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
816 uinfo->count = 1;
817 uinfo->value.integer.min = 0;
818 uinfo->value.integer.max = mask;
819 return 0;
820 }
821
822 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
823 {
824 struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
825 unsigned long flags;
826 int reg = kcontrol->private_value & 0xff;
827 int shift = (kcontrol->private_value >> 8) & 0xff;
828 int mask = (kcontrol->private_value >> 16) & 0xff;
829 int invert = (kcontrol->private_value >> 24) & 0xff;
830
831 spin_lock_irqsave(&chip->reg_lock, flags);
832 ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
833 spin_unlock_irqrestore(&chip->reg_lock, flags);
834 if (invert)
835 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
836 return 0;
837 }
838
839 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
840 {
841 struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
842 unsigned long flags;
843 int reg = kcontrol->private_value & 0xff;
844 int shift = (kcontrol->private_value >> 8) & 0xff;
845 int mask = (kcontrol->private_value >> 16) & 0xff;
846 int invert = (kcontrol->private_value >> 24) & 0xff;
847 int change;
848 unsigned char oval, nval;
849
850 nval = (ucontrol->value.integer.value[0] & mask);
851 if (invert)
852 nval = mask - nval;
853 nval <<= shift;
854 spin_lock_irqsave(&chip->reg_lock, flags);
855 oval = snd_es1688_mixer_read(chip, reg);
856 nval = (oval & ~(mask << shift)) | nval;
857 change = nval != oval;
858 if (change)
859 snd_es1688_mixer_write(chip, reg, nval);
860 spin_unlock_irqrestore(&chip->reg_lock, flags);
861 return change;
862 }
863
864 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
865 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
866 .info = snd_es1688_info_double, \
867 .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
868 .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
869
870 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
871 {
872 int mask = (kcontrol->private_value >> 24) & 0xff;
873
874 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
875 uinfo->count = 2;
876 uinfo->value.integer.min = 0;
877 uinfo->value.integer.max = mask;
878 return 0;
879 }
880
881 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
882 {
883 struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
884 unsigned long flags;
885 int left_reg = kcontrol->private_value & 0xff;
886 int right_reg = (kcontrol->private_value >> 8) & 0xff;
887 int shift_left = (kcontrol->private_value >> 16) & 0x07;
888 int shift_right = (kcontrol->private_value >> 19) & 0x07;
889 int mask = (kcontrol->private_value >> 24) & 0xff;
890 int invert = (kcontrol->private_value >> 22) & 1;
891 unsigned char left, right;
892
893 spin_lock_irqsave(&chip->reg_lock, flags);
894 if (left_reg < 0xa0)
895 left = snd_es1688_mixer_read(chip, left_reg);
896 else
897 left = snd_es1688_read(chip, left_reg);
898 if (left_reg != right_reg) {
899 if (right_reg < 0xa0)
900 right = snd_es1688_mixer_read(chip, right_reg);
901 else
902 right = snd_es1688_read(chip, right_reg);
903 } else
904 right = left;
905 spin_unlock_irqrestore(&chip->reg_lock, flags);
906 ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
907 ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
908 if (invert) {
909 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
910 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
911 }
912 return 0;
913 }
914
915 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
916 {
917 struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
918 unsigned long flags;
919 int left_reg = kcontrol->private_value & 0xff;
920 int right_reg = (kcontrol->private_value >> 8) & 0xff;
921 int shift_left = (kcontrol->private_value >> 16) & 0x07;
922 int shift_right = (kcontrol->private_value >> 19) & 0x07;
923 int mask = (kcontrol->private_value >> 24) & 0xff;
924 int invert = (kcontrol->private_value >> 22) & 1;
925 int change;
926 unsigned char val1, val2, oval1, oval2;
927
928 val1 = ucontrol->value.integer.value[0] & mask;
929 val2 = ucontrol->value.integer.value[1] & mask;
930 if (invert) {
931 val1 = mask - val1;
932 val2 = mask - val2;
933 }
934 val1 <<= shift_left;
935 val2 <<= shift_right;
936 spin_lock_irqsave(&chip->reg_lock, flags);
937 if (left_reg != right_reg) {
938 if (left_reg < 0xa0)
939 oval1 = snd_es1688_mixer_read(chip, left_reg);
940 else
941 oval1 = snd_es1688_read(chip, left_reg);
942 if (right_reg < 0xa0)
943 oval2 = snd_es1688_mixer_read(chip, right_reg);
944 else
945 oval2 = snd_es1688_read(chip, right_reg);
946 val1 = (oval1 & ~(mask << shift_left)) | val1;
947 val2 = (oval2 & ~(mask << shift_right)) | val2;
948 change = val1 != oval1 || val2 != oval2;
949 if (change) {
950 if (left_reg < 0xa0)
951 snd_es1688_mixer_write(chip, left_reg, val1);
952 else
953 snd_es1688_write(chip, left_reg, val1);
954 if (right_reg < 0xa0)
955 snd_es1688_mixer_write(chip, right_reg, val1);
956 else
957 snd_es1688_write(chip, right_reg, val1);
958 }
959 } else {
960 if (left_reg < 0xa0)
961 oval1 = snd_es1688_mixer_read(chip, left_reg);
962 else
963 oval1 = snd_es1688_read(chip, left_reg);
964 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
965 change = val1 != oval1;
966 if (change) {
967 if (left_reg < 0xa0)
968 snd_es1688_mixer_write(chip, left_reg, val1);
969 else
970 snd_es1688_write(chip, left_reg, val1);
971 }
972
973 }
974 spin_unlock_irqrestore(&chip->reg_lock, flags);
975 return change;
976 }
977
978 static struct snd_kcontrol_new snd_es1688_controls[] = {
979 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
980 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
981 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
982 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
983 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
984 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
985 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
986 ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
987 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
988 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
989 {
990 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
991 .name = "Capture Source",
992 .info = snd_es1688_info_mux,
993 .get = snd_es1688_get_mux,
994 .put = snd_es1688_put_mux,
995 },
996 };
997
998 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
999
1000 static unsigned char snd_es1688_init_table[][2] = {
1001 { ES1688_MASTER_DEV, 0 },
1002 { ES1688_PCM_DEV, 0 },
1003 { ES1688_LINE_DEV, 0 },
1004 { ES1688_CD_DEV, 0 },
1005 { ES1688_FM_DEV, 0 },
1006 { ES1688_MIC_DEV, 0 },
1007 { ES1688_AUX_DEV, 0 },
1008 { ES1688_SPEAKER_DEV, 0 },
1009 { ES1688_RECLEV_DEV, 0 },
1010 { ES1688_REC_DEV, 0x17 }
1011 };
1012
1013 int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip)
1014 {
1015 unsigned int idx;
1016 int err;
1017 unsigned char reg, val;
1018
1019 if (snd_BUG_ON(!chip || !card))
1020 return -EINVAL;
1021
1022 strcpy(card->mixername, snd_es1688_chip_id(chip));
1023
1024 for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1025 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1026 return err;
1027 }
1028 for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1029 reg = snd_es1688_init_table[idx][0];
1030 val = snd_es1688_init_table[idx][1];
1031 if (reg < 0xa0)
1032 snd_es1688_mixer_write(chip, reg, val);
1033 else
1034 snd_es1688_write(chip, reg, val);
1035 }
1036 return 0;
1037 }
1038
1039 EXPORT_SYMBOL(snd_es1688_mixer_write);
1040 EXPORT_SYMBOL(snd_es1688_create);
1041 EXPORT_SYMBOL(snd_es1688_pcm);
1042 EXPORT_SYMBOL(snd_es1688_mixer);
1043
1044 /*
1045 * INIT part
1046 */
1047
1048 static int __init alsa_es1688_init(void)
1049 {
1050 return 0;
1051 }
1052
1053 static void __exit alsa_es1688_exit(void)
1054 {
1055 }
1056
1057 module_init(alsa_es1688_init)
1058 module_exit(alsa_es1688_exit)
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