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Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / isa / ad1848 / ad1848_lib.c
blob8fb3db103e485e698420dd18b587ca497a0a0907
1 /*
2 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
3 * Routines for control of AD1848/AD1847/CS4248
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 #define SNDRV_MAIN_OBJECT_FILE
23 #include <sound/driver.h>
24 #include <linux/delay.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
27 #include <linux/pm.h>
28 #include <linux/slab.h>
29 #include <linux/ioport.h>
30 #include <sound/core.h>
31 #include <sound/ad1848.h>
32 #include <sound/control.h>
33 #include <sound/pcm_params.h>
34
35 #include <asm/io.h>
36 #include <asm/dma.h>
37
38 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
39 MODULE_DESCRIPTION("Routines for control of AD1848/AD1847/CS4248");
40 MODULE_LICENSE("GPL");
41
42 #if 0
43 #define SNDRV_DEBUG_MCE
44 #endif
45
46 /*
47 * Some variables
48 */
49
50 static unsigned char freq_bits[14] = {
51 /* 5510 */ 0x00 | AD1848_XTAL2,
52 /* 6620 */ 0x0E | AD1848_XTAL2,
53 /* 8000 */ 0x00 | AD1848_XTAL1,
54 /* 9600 */ 0x0E | AD1848_XTAL1,
55 /* 11025 */ 0x02 | AD1848_XTAL2,
56 /* 16000 */ 0x02 | AD1848_XTAL1,
57 /* 18900 */ 0x04 | AD1848_XTAL2,
58 /* 22050 */ 0x06 | AD1848_XTAL2,
59 /* 27042 */ 0x04 | AD1848_XTAL1,
60 /* 32000 */ 0x06 | AD1848_XTAL1,
61 /* 33075 */ 0x0C | AD1848_XTAL2,
62 /* 37800 */ 0x08 | AD1848_XTAL2,
63 /* 44100 */ 0x0A | AD1848_XTAL2,
64 /* 48000 */ 0x0C | AD1848_XTAL1
65 };
66
67 static unsigned int rates[14] = {
68 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
69 27042, 32000, 33075, 37800, 44100, 48000
70 };
71
72 static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
73 .count = 14,
74 .list = rates,
75 .mask = 0,
76 };
77
78 static unsigned char snd_ad1848_original_image[16] =
79 {
80 0x00, /* 00 - lic */
81 0x00, /* 01 - ric */
82 0x9f, /* 02 - la1ic */
83 0x9f, /* 03 - ra1ic */
84 0x9f, /* 04 - la2ic */
85 0x9f, /* 05 - ra2ic */
86 0xbf, /* 06 - loc */
87 0xbf, /* 07 - roc */
88 0x20, /* 08 - dfr */
89 AD1848_AUTOCALIB, /* 09 - ic */
90 0x00, /* 0a - pc */
91 0x00, /* 0b - ti */
92 0x00, /* 0c - mi */
93 0x00, /* 0d - lbc */
94 0x00, /* 0e - dru */
95 0x00, /* 0f - drl */
96 };
97
98 /*
99 * Basic I/O functions
100 */
101
102 void snd_ad1848_out(ad1848_t *chip,
103 unsigned char reg,
104 unsigned char value)
105 {
106 int timeout;
107
108 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
109 udelay(100);
110 #ifdef CONFIG_SND_DEBUG
111 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
112 snd_printk("auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
113 #endif
114 outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
115 outb(chip->image[reg] = value, AD1848P(chip, REG));
116 mb();
117 #if 0
118 printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value);
119 #endif
120 }
121
122 static void snd_ad1848_dout(ad1848_t *chip,
123 unsigned char reg, unsigned char value)
124 {
125 int timeout;
126
127 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
128 udelay(100);
129 outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
130 outb(value, AD1848P(chip, REG));
131 mb();
132 }
133
134 static unsigned char snd_ad1848_in(ad1848_t *chip, unsigned char reg)
135 {
136 int timeout;
137
138 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
139 udelay(100);
140 #ifdef CONFIG_SND_DEBUG
141 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
142 snd_printk("auto calibration time out - reg = 0x%x\n", reg);
143 #endif
144 outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
145 mb();
146 return inb(AD1848P(chip, REG));
147 }
148
149 #if 0
150
151 static void snd_ad1848_debug(ad1848_t *chip)
152 {
153 printk("AD1848 REGS: INDEX = 0x%02x ", inb(AD1848P(chip, REGSEL)));
154 printk(" STATUS = 0x%02x\n", inb(AD1848P(chip, STATUS)));
155 printk(" 0x00: left input = 0x%02x ", snd_ad1848_in(chip, 0x00));
156 printk(" 0x08: playback format = 0x%02x\n", snd_ad1848_in(chip, 0x08));
157 printk(" 0x01: right input = 0x%02x ", snd_ad1848_in(chip, 0x01));
158 printk(" 0x09: iface (CFIG 1) = 0x%02x\n", snd_ad1848_in(chip, 0x09));
159 printk(" 0x02: AUXA left = 0x%02x ", snd_ad1848_in(chip, 0x02));
160 printk(" 0x0a: pin control = 0x%02x\n", snd_ad1848_in(chip, 0x0a));
161 printk(" 0x03: AUXA right = 0x%02x ", snd_ad1848_in(chip, 0x03));
162 printk(" 0x0b: init & status = 0x%02x\n", snd_ad1848_in(chip, 0x0b));
163 printk(" 0x04: AUXB left = 0x%02x ", snd_ad1848_in(chip, 0x04));
164 printk(" 0x0c: revision & mode = 0x%02x\n", snd_ad1848_in(chip, 0x0c));
165 printk(" 0x05: AUXB right = 0x%02x ", snd_ad1848_in(chip, 0x05));
166 printk(" 0x0d: loopback = 0x%02x\n", snd_ad1848_in(chip, 0x0d));
167 printk(" 0x06: left output = 0x%02x ", snd_ad1848_in(chip, 0x06));
168 printk(" 0x0e: data upr count = 0x%02x\n", snd_ad1848_in(chip, 0x0e));
169 printk(" 0x07: right output = 0x%02x ", snd_ad1848_in(chip, 0x07));
170 printk(" 0x0f: data lwr count = 0x%02x\n", snd_ad1848_in(chip, 0x0f));
171 }
172
173 #endif
174
175 /*
176 * AD1848 detection / MCE routines
177 */
178
179 static void snd_ad1848_mce_up(ad1848_t *chip)
180 {
181 unsigned long flags;
182 int timeout;
183
184 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
185 udelay(100);
186 #ifdef CONFIG_SND_DEBUG
187 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
188 snd_printk("mce_up - auto calibration time out (0)\n");
189 #endif
190 spin_lock_irqsave(&chip->reg_lock, flags);
191 chip->mce_bit |= AD1848_MCE;
192 timeout = inb(AD1848P(chip, REGSEL));
193 if (timeout == 0x80)
194 snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
195 if (!(timeout & AD1848_MCE))
196 outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
197 spin_unlock_irqrestore(&chip->reg_lock, flags);
198 }
199
200 static void snd_ad1848_mce_down(ad1848_t *chip)
201 {
202 unsigned long flags;
203 int timeout;
204 signed long time;
205
206 spin_lock_irqsave(&chip->reg_lock, flags);
207 for (timeout = 5; timeout > 0; timeout--)
208 inb(AD1848P(chip, REGSEL));
209 /* end of cleanup sequence */
210 for (timeout = 12000; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
211 udelay(100);
212 #if 0
213 printk("(1) timeout = %i\n", timeout);
214 #endif
215 #ifdef CONFIG_SND_DEBUG
216 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
217 snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", AD1848P(chip, REGSEL));
218 #endif
219 chip->mce_bit &= ~AD1848_MCE;
220 timeout = inb(AD1848P(chip, REGSEL));
221 outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
222 if (timeout == 0x80)
223 snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
224 if ((timeout & AD1848_MCE) == 0) {
225 spin_unlock_irqrestore(&chip->reg_lock, flags);
226 return;
227 }
228 /* calibration process */
229
230 for (timeout = 500; timeout > 0 && (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0; timeout--);
231 if ((snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0) {
232 snd_printd("mce_down - auto calibration time out (1)\n");
233 spin_unlock_irqrestore(&chip->reg_lock, flags);
234 return;
235 }
236 #if 0
237 printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies);
238 #endif
239 time = HZ / 4;
240 while (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) {
241 spin_unlock_irqrestore(&chip->reg_lock, flags);
242 if (time <= 0) {
243 snd_printk("mce_down - auto calibration time out (2)\n");
244 return;
245 }
246 set_current_state(TASK_INTERRUPTIBLE);
247 time = schedule_timeout(time);
248 spin_lock_irqsave(&chip->reg_lock, flags);
249 }
250 #if 0
251 printk("(3) jiffies = %li\n", jiffies);
252 #endif
253 time = HZ / 10;
254 while (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) {
255 spin_unlock_irqrestore(&chip->reg_lock, flags);
256 if (time <= 0) {
257 snd_printk("mce_down - auto calibration time out (3)\n");
258 return;
259 }
260 set_current_state(TASK_INTERRUPTIBLE);
261 time = schedule_timeout(time);
262 spin_lock_irqsave(&chip->reg_lock, flags);
263 }
264 spin_unlock_irqrestore(&chip->reg_lock, flags);
265 #if 0
266 printk("(4) jiffies = %li\n", jiffies);
267 snd_printk("mce_down - exit = 0x%x\n", inb(AD1848P(chip, REGSEL)));
268 #endif
269 }
270
271 static unsigned int snd_ad1848_get_count(unsigned char format,
272 unsigned int size)
273 {
274 switch (format & 0xe0) {
275 case AD1848_LINEAR_16:
276 size >>= 1;
277 break;
278 }
279 if (format & AD1848_STEREO)
280 size >>= 1;
281 return size;
282 }
283
284 static int snd_ad1848_trigger(ad1848_t *chip, unsigned char what,
285 int channel, int cmd)
286 {
287 int result = 0;
288
289 #if 0
290 printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, inb(AD1848P(card, STATUS)));
291 #endif
292 spin_lock(&chip->reg_lock);
293 if (cmd == SNDRV_PCM_TRIGGER_START) {
294 if (chip->image[AD1848_IFACE_CTRL] & what) {
295 spin_unlock(&chip->reg_lock);
296 return 0;
297 }
298 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] |= what);
299 chip->mode |= AD1848_MODE_RUNNING;
300 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
301 if (!(chip->image[AD1848_IFACE_CTRL] & what)) {
302 spin_unlock(&chip->reg_lock);
303 return 0;
304 }
305 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] &= ~what);
306 chip->mode &= ~AD1848_MODE_RUNNING;
307 } else {
308 result = -EINVAL;
309 }
310 spin_unlock(&chip->reg_lock);
311 return result;
312 }
313
314 /*
315 * CODEC I/O
316 */
317
318 static unsigned char snd_ad1848_get_rate(unsigned int rate)
319 {
320 int i;
321
322 for (i = 0; i < 14; i++)
323 if (rate == rates[i])
324 return freq_bits[i];
325 snd_BUG();
326 return freq_bits[13];
327 }
328
329 static int snd_ad1848_ioctl(snd_pcm_substream_t * substream,
330 unsigned int cmd, void *arg)
331 {
332 return snd_pcm_lib_ioctl(substream, cmd, arg);
333 }
334
335 static unsigned char snd_ad1848_get_format(int format, int channels)
336 {
337 unsigned char rformat;
338
339 rformat = AD1848_LINEAR_8;
340 switch (format) {
341 case SNDRV_PCM_FORMAT_A_LAW: rformat = AD1848_ALAW_8; break;
342 case SNDRV_PCM_FORMAT_MU_LAW: rformat = AD1848_ULAW_8; break;
343 case SNDRV_PCM_FORMAT_S16_LE: rformat = AD1848_LINEAR_16; break;
344 }
345 if (channels > 1)
346 rformat |= AD1848_STEREO;
347 #if 0
348 snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
349 #endif
350 return rformat;
351 }
352
353 static void snd_ad1848_calibrate_mute(ad1848_t *chip, int mute)
354 {
355 unsigned long flags;
356
357 mute = mute ? 1 : 0;
358 spin_lock_irqsave(&chip->reg_lock, flags);
359 if (chip->calibrate_mute == mute) {
360 spin_unlock_irqrestore(&chip->reg_lock, flags);
361 return;
362 }
363 if (!mute) {
364 snd_ad1848_dout(chip, AD1848_LEFT_INPUT, chip->image[AD1848_LEFT_INPUT]);
365 snd_ad1848_dout(chip, AD1848_RIGHT_INPUT, chip->image[AD1848_RIGHT_INPUT]);
366 }
367 snd_ad1848_dout(chip, AD1848_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_LEFT_INPUT]);
368 snd_ad1848_dout(chip, AD1848_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_RIGHT_INPUT]);
369 snd_ad1848_dout(chip, AD1848_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_LEFT_INPUT]);
370 snd_ad1848_dout(chip, AD1848_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_RIGHT_INPUT]);
371 snd_ad1848_dout(chip, AD1848_LEFT_OUTPUT, mute ? 0x80 : chip->image[AD1848_LEFT_OUTPUT]);
372 snd_ad1848_dout(chip, AD1848_RIGHT_OUTPUT, mute ? 0x80 : chip->image[AD1848_RIGHT_OUTPUT]);
373 chip->calibrate_mute = mute;
374 spin_unlock_irqrestore(&chip->reg_lock, flags);
375 }
376
377 static void snd_ad1848_set_data_format(ad1848_t *chip, snd_pcm_hw_params_t *hw_params)
378 {
379 if (hw_params == NULL) {
380 chip->image[AD1848_DATA_FORMAT] = 0x20;
381 } else {
382 chip->image[AD1848_DATA_FORMAT] =
383 snd_ad1848_get_format(params_format(hw_params), params_channels(hw_params)) |
384 snd_ad1848_get_rate(params_rate(hw_params));
385 }
386 // snd_printk(">>> pmode = 0x%x, dfr = 0x%x\n", pstr->mode, chip->image[AD1848_DATA_FORMAT]);
387 }
388
389 static int snd_ad1848_open(ad1848_t *chip, unsigned int mode)
390 {
391 unsigned long flags;
392
393 down(&chip->open_mutex);
394 if (chip->mode & AD1848_MODE_OPEN) {
395 up(&chip->open_mutex);
396 return -EAGAIN;
397 }
398 snd_ad1848_mce_down(chip);
399
400 #ifdef SNDRV_DEBUG_MCE
401 snd_printk("open: (1)\n");
402 #endif
403 snd_ad1848_mce_up(chip);
404 spin_lock_irqsave(&chip->reg_lock, flags);
405 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
406 AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO |
407 AD1848_CALIB_MODE);
408 chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB;
409 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
410 spin_unlock_irqrestore(&chip->reg_lock, flags);
411 snd_ad1848_mce_down(chip);
412
413 #ifdef SNDRV_DEBUG_MCE
414 snd_printk("open: (2)\n");
415 #endif
416
417 snd_ad1848_set_data_format(chip, NULL);
418
419 snd_ad1848_mce_up(chip);
420 spin_lock_irqsave(&chip->reg_lock, flags);
421 snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
422 spin_unlock_irqrestore(&chip->reg_lock, flags);
423 snd_ad1848_mce_down(chip);
424
425 #ifdef SNDRV_DEBUG_MCE
426 snd_printk("open: (3)\n");
427 #endif
428
429 /* ok. now enable and ack CODEC IRQ */
430 spin_lock_irqsave(&chip->reg_lock, flags);
431 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
432 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
433 chip->image[AD1848_PIN_CTRL] |= AD1848_IRQ_ENABLE;
434 snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
435 spin_unlock_irqrestore(&chip->reg_lock, flags);
436
437 chip->mode = mode;
438 up(&chip->open_mutex);
439
440 return 0;
441 }
442
443 static void snd_ad1848_close(ad1848_t *chip)
444 {
445 unsigned long flags;
446
447 down(&chip->open_mutex);
448 if (!chip->mode) {
449 up(&chip->open_mutex);
450 return;
451 }
452 /* disable IRQ */
453 spin_lock_irqsave(&chip->reg_lock, flags);
454 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
455 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
456 chip->image[AD1848_PIN_CTRL] &= ~AD1848_IRQ_ENABLE;
457 snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
458 spin_unlock_irqrestore(&chip->reg_lock, flags);
459
460 /* now disable capture & playback */
461
462 snd_ad1848_mce_up(chip);
463 spin_lock_irqsave(&chip->reg_lock, flags);
464 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
465 AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
466 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
467 spin_unlock_irqrestore(&chip->reg_lock, flags);
468 snd_ad1848_mce_down(chip);
469
470 /* clear IRQ again */
471 spin_lock_irqsave(&chip->reg_lock, flags);
472 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
473 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
474 spin_unlock_irqrestore(&chip->reg_lock, flags);
475
476 chip->mode = 0;
477 up(&chip->open_mutex);
478 }
479
480 /*
481 * ok.. exported functions..
482 */
483
484 static int snd_ad1848_playback_trigger(snd_pcm_substream_t * substream,
485 int cmd)
486 {
487 ad1848_t *chip = snd_pcm_substream_chip(substream);
488 return snd_ad1848_trigger(chip, AD1848_PLAYBACK_ENABLE, SNDRV_PCM_STREAM_PLAYBACK, cmd);
489 }
490
491 static int snd_ad1848_capture_trigger(snd_pcm_substream_t * substream,
492 int cmd)
493 {
494 ad1848_t *chip = snd_pcm_substream_chip(substream);
495 return snd_ad1848_trigger(chip, AD1848_CAPTURE_ENABLE, SNDRV_PCM_STREAM_CAPTURE, cmd);
496 }
497
498 static int snd_ad1848_playback_hw_params(snd_pcm_substream_t * substream,
499 snd_pcm_hw_params_t * hw_params)
500 {
501 ad1848_t *chip = snd_pcm_substream_chip(substream);
502 unsigned long flags;
503 int err;
504
505 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
506 return err;
507 snd_ad1848_calibrate_mute(chip, 1);
508 snd_ad1848_set_data_format(chip, hw_params);
509 snd_ad1848_mce_up(chip);
510 spin_lock_irqsave(&chip->reg_lock, flags);
511 snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
512 spin_unlock_irqrestore(&chip->reg_lock, flags);
513 snd_ad1848_mce_down(chip);
514 snd_ad1848_calibrate_mute(chip, 0);
515 return 0;
516 }
517
518 static int snd_ad1848_playback_hw_free(snd_pcm_substream_t * substream)
519 {
520 return snd_pcm_lib_free_pages(substream);
521 }
522
523 static int snd_ad1848_playback_prepare(snd_pcm_substream_t * substream)
524 {
525 ad1848_t *chip = snd_pcm_substream_chip(substream);
526 snd_pcm_runtime_t *runtime = substream->runtime;
527 unsigned long flags;
528 unsigned int size = snd_pcm_lib_buffer_bytes(substream);
529 unsigned int count = snd_pcm_lib_period_bytes(substream);
530
531 chip->dma_size = size;
532 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO);
533 snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
534 count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
535 spin_lock_irqsave(&chip->reg_lock, flags);
536 snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
537 snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
538 spin_unlock_irqrestore(&chip->reg_lock, flags);
539 return 0;
540 }
541
542 static int snd_ad1848_capture_hw_params(snd_pcm_substream_t * substream,
543 snd_pcm_hw_params_t * hw_params)
544 {
545 ad1848_t *chip = snd_pcm_substream_chip(substream);
546 unsigned long flags;
547 int err;
548
549 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
550 return err;
551 snd_ad1848_calibrate_mute(chip, 1);
552 snd_ad1848_set_data_format(chip, hw_params);
553 snd_ad1848_mce_up(chip);
554 spin_lock_irqsave(&chip->reg_lock, flags);
555 snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
556 spin_unlock_irqrestore(&chip->reg_lock, flags);
557 snd_ad1848_mce_down(chip);
558 snd_ad1848_calibrate_mute(chip, 0);
559 return 0;
560 }
561
562 static int snd_ad1848_capture_hw_free(snd_pcm_substream_t * substream)
563 {
564 return snd_pcm_lib_free_pages(substream);
565 }
566
567 static int snd_ad1848_capture_prepare(snd_pcm_substream_t * substream)
568 {
569 ad1848_t *chip = snd_pcm_substream_chip(substream);
570 snd_pcm_runtime_t *runtime = substream->runtime;
571 unsigned long flags;
572 unsigned int size = snd_pcm_lib_buffer_bytes(substream);
573 unsigned int count = snd_pcm_lib_period_bytes(substream);
574
575 chip->dma_size = size;
576 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
577 snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
578 count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
579 spin_lock_irqsave(&chip->reg_lock, flags);
580 snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
581 snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
582 spin_unlock_irqrestore(&chip->reg_lock, flags);
583 return 0;
584 }
585
586 static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id, struct pt_regs *regs)
587 {
588 ad1848_t *chip = dev_id;
589
590 if ((chip->mode & AD1848_MODE_PLAY) && chip->playback_substream &&
591 (chip->mode & AD1848_MODE_RUNNING))
592 snd_pcm_period_elapsed(chip->playback_substream);
593 if ((chip->mode & AD1848_MODE_CAPTURE) && chip->capture_substream &&
594 (chip->mode & AD1848_MODE_RUNNING))
595 snd_pcm_period_elapsed(chip->capture_substream);
596 outb(0, AD1848P(chip, STATUS)); /* clear global interrupt bit */
597 return IRQ_HANDLED;
598 }
599
600 static snd_pcm_uframes_t snd_ad1848_playback_pointer(snd_pcm_substream_t * substream)
601 {
602 ad1848_t *chip = snd_pcm_substream_chip(substream);
603 size_t ptr;
604
605 if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_PLAYBACK_ENABLE))
606 return 0;
607 ptr = snd_dma_pointer(chip->dma, chip->dma_size);
608 return bytes_to_frames(substream->runtime, ptr);
609 }
610
611 static snd_pcm_uframes_t snd_ad1848_capture_pointer(snd_pcm_substream_t * substream)
612 {
613 ad1848_t *chip = snd_pcm_substream_chip(substream);
614 size_t ptr;
615
616 if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_CAPTURE_ENABLE))
617 return 0;
618 ptr = snd_dma_pointer(chip->dma, chip->dma_size);
619 return bytes_to_frames(substream->runtime, ptr);
620 }
621
622 /*
623
624 */
625
626 static void snd_ad1848_thinkpad_twiddle(ad1848_t *chip, int on) {
627
628 int tmp;
629
630 if (!chip->thinkpad_flag) return;
631
632 outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
633 tmp = inb(AD1848_THINKPAD_CTL_PORT2);
634
635 if (on)
636 /* turn it on */
637 tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
638 else
639 /* turn it off */
640 tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
641
642 outb(tmp, AD1848_THINKPAD_CTL_PORT2);
643
644 }
645
646 #ifdef CONFIG_PM
647 static int snd_ad1848_suspend(snd_card_t *card, pm_message_t state)
648 {
649 ad1848_t *chip = card->pm_private_data;
650
651 snd_pcm_suspend_all(chip->pcm);
652 /* FIXME: save registers? */
653
654 if (chip->thinkpad_flag)
655 snd_ad1848_thinkpad_twiddle(chip, 0);
656
657 return 0;
658 }
659
660 static int snd_ad1848_resume(snd_card_t *card)
661 {
662 ad1848_t *chip = card->pm_private_data;
663
664 if (chip->thinkpad_flag)
665 snd_ad1848_thinkpad_twiddle(chip, 1);
666
667 /* FIXME: restore registers? */
668
669 return 0;
670 }
671 #endif /* CONFIG_PM */
672
673 static int snd_ad1848_probe(ad1848_t * chip)
674 {
675 unsigned long flags;
676 int i, id, rev, ad1847;
677 unsigned char *ptr;
678
679 #if 0
680 snd_ad1848_debug(chip);
681 #endif
682 id = ad1847 = 0;
683 for (i = 0; i < 1000; i++) {
684 mb();
685 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
686 udelay(500);
687 else {
688 spin_lock_irqsave(&chip->reg_lock, flags);
689 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
690 snd_ad1848_out(chip, AD1848_LEFT_INPUT, 0xaa);
691 snd_ad1848_out(chip, AD1848_RIGHT_INPUT, 0x45);
692 rev = snd_ad1848_in(chip, AD1848_RIGHT_INPUT);
693 if (rev == 0x65) {
694 spin_unlock_irqrestore(&chip->reg_lock, flags);
695 id = 1;
696 ad1847 = 1;
697 break;
698 }
699 if (snd_ad1848_in(chip, AD1848_LEFT_INPUT) == 0xaa && rev == 0x45) {
700 spin_unlock_irqrestore(&chip->reg_lock, flags);
701 id = 1;
702 break;
703 }
704 spin_unlock_irqrestore(&chip->reg_lock, flags);
705 }
706 }
707 if (id != 1)
708 return -ENODEV; /* no valid device found */
709 if (chip->hardware == AD1848_HW_DETECT) {
710 if (ad1847) {
711 chip->hardware = AD1848_HW_AD1847;
712 } else {
713 chip->hardware = AD1848_HW_AD1848;
714 rev = snd_ad1848_in(chip, AD1848_MISC_INFO);
715 if (rev & 0x80) {
716 chip->hardware = AD1848_HW_CS4248;
717 } else if ((rev & 0x0f) == 0x0a) {
718 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x40);
719 for (i = 0; i < 16; ++i) {
720 if (snd_ad1848_in(chip, i) != snd_ad1848_in(chip, i + 16)) {
721 chip->hardware = AD1848_HW_CMI8330;
722 break;
723 }
724 }
725 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
726 }
727 }
728 }
729 spin_lock_irqsave(&chip->reg_lock, flags);
730 inb(AD1848P(chip, STATUS)); /* clear any pendings IRQ */
731 outb(0, AD1848P(chip, STATUS));
732 mb();
733 spin_unlock_irqrestore(&chip->reg_lock, flags);
734
735 chip->image[AD1848_MISC_INFO] = 0x00;
736 chip->image[AD1848_IFACE_CTRL] =
737 (chip->image[AD1848_IFACE_CTRL] & ~AD1848_SINGLE_DMA) | AD1848_SINGLE_DMA;
738 ptr = (unsigned char *) &chip->image;
739 snd_ad1848_mce_down(chip);
740 spin_lock_irqsave(&chip->reg_lock, flags);
741 for (i = 0; i < 16; i++) /* ok.. fill all AD1848 registers */
742 snd_ad1848_out(chip, i, *ptr++);
743 spin_unlock_irqrestore(&chip->reg_lock, flags);
744 snd_ad1848_mce_up(chip);
745 snd_ad1848_mce_down(chip);
746 return 0; /* all things are ok.. */
747 }
748
749 /*
750
751 */
752
753 static snd_pcm_hardware_t snd_ad1848_playback =
754 {
755 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
756 SNDRV_PCM_INFO_MMAP_VALID),
757 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
758 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
759 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
760 .rate_min = 5510,
761 .rate_max = 48000,
762 .channels_min = 1,
763 .channels_max = 2,
764 .buffer_bytes_max = (128*1024),
765 .period_bytes_min = 64,
766 .period_bytes_max = (128*1024),
767 .periods_min = 1,
768 .periods_max = 1024,
769 .fifo_size = 0,
770 };
771
772 static snd_pcm_hardware_t snd_ad1848_capture =
773 {
774 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
775 SNDRV_PCM_INFO_MMAP_VALID),
776 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
777 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
778 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
779 .rate_min = 5510,
780 .rate_max = 48000,
781 .channels_min = 1,
782 .channels_max = 2,
783 .buffer_bytes_max = (128*1024),
784 .period_bytes_min = 64,
785 .period_bytes_max = (128*1024),
786 .periods_min = 1,
787 .periods_max = 1024,
788 .fifo_size = 0,
789 };
790
791 /*
792
793 */
794
795 static int snd_ad1848_playback_open(snd_pcm_substream_t * substream)
796 {
797 ad1848_t *chip = snd_pcm_substream_chip(substream);
798 snd_pcm_runtime_t *runtime = substream->runtime;
799 int err;
800
801 if ((err = snd_ad1848_open(chip, AD1848_MODE_PLAY)) < 0)
802 return err;
803 chip->playback_substream = substream;
804 runtime->hw = snd_ad1848_playback;
805 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
806 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
807 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
808 return 0;
809 }
810
811 static int snd_ad1848_capture_open(snd_pcm_substream_t * substream)
812 {
813 ad1848_t *chip = snd_pcm_substream_chip(substream);
814 snd_pcm_runtime_t *runtime = substream->runtime;
815 int err;
816
817 if ((err = snd_ad1848_open(chip, AD1848_MODE_CAPTURE)) < 0)
818 return err;
819 chip->capture_substream = substream;
820 runtime->hw = snd_ad1848_capture;
821 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
822 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
823 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
824 return 0;
825 }
826
827 static int snd_ad1848_playback_close(snd_pcm_substream_t * substream)
828 {
829 ad1848_t *chip = snd_pcm_substream_chip(substream);
830
831 chip->mode &= ~AD1848_MODE_PLAY;
832 chip->playback_substream = NULL;
833 snd_ad1848_close(chip);
834 return 0;
835 }
836
837 static int snd_ad1848_capture_close(snd_pcm_substream_t * substream)
838 {
839 ad1848_t *chip = snd_pcm_substream_chip(substream);
840
841 chip->mode &= ~AD1848_MODE_CAPTURE;
842 chip->capture_substream = NULL;
843 snd_ad1848_close(chip);
844 return 0;
845 }
846
847 static int snd_ad1848_free(ad1848_t *chip)
848 {
849 if (chip->res_port) {
850 release_resource(chip->res_port);
851 kfree_nocheck(chip->res_port);
852 }
853 if (chip->irq >= 0)
854 free_irq(chip->irq, (void *) chip);
855 if (chip->dma >= 0) {
856 snd_dma_disable(chip->dma);
857 free_dma(chip->dma);
858 }
859 kfree(chip);
860 return 0;
861 }
862
863 static int snd_ad1848_dev_free(snd_device_t *device)
864 {
865 ad1848_t *chip = device->device_data;
866 return snd_ad1848_free(chip);
867 }
868
869 static const char *snd_ad1848_chip_id(ad1848_t *chip)
870 {
871 switch (chip->hardware) {
872 case AD1848_HW_AD1847: return "AD1847";
873 case AD1848_HW_AD1848: return "AD1848";
874 case AD1848_HW_CS4248: return "CS4248";
875 case AD1848_HW_CMI8330: return "CMI8330/C3D";
876 default: return "???";
877 }
878 }
879
880 int snd_ad1848_create(snd_card_t * card,
881 unsigned long port,
882 int irq, int dma,
883 unsigned short hardware,
884 ad1848_t ** rchip)
885 {
886 static snd_device_ops_t ops = {
887 .dev_free = snd_ad1848_dev_free,
888 };
889 ad1848_t *chip;
890 int err;
891
892 *rchip = NULL;
893 chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
894 if (chip == NULL)
895 return -ENOMEM;
896 spin_lock_init(&chip->reg_lock);
897 init_MUTEX(&chip->open_mutex);
898 chip->card = card;
899 chip->port = port;
900 chip->irq = -1;
901 chip->dma = -1;
902 chip->hardware = hardware;
903 memcpy(&chip->image, &snd_ad1848_original_image, sizeof(snd_ad1848_original_image));
904
905 if ((chip->res_port = request_region(port, 4, "AD1848")) == NULL) {
906 snd_printk(KERN_ERR "ad1848: can't grab port 0x%lx\n", port);
907 snd_ad1848_free(chip);
908 return -EBUSY;
909 }
910 if (request_irq(irq, snd_ad1848_interrupt, SA_INTERRUPT, "AD1848", (void *) chip)) {
911 snd_printk(KERN_ERR "ad1848: can't grab IRQ %d\n", irq);
912 snd_ad1848_free(chip);
913 return -EBUSY;
914 }
915 chip->irq = irq;
916 if (request_dma(dma, "AD1848")) {
917 snd_printk(KERN_ERR "ad1848: can't grab DMA %d\n", dma);
918 snd_ad1848_free(chip);
919 return -EBUSY;
920 }
921 chip->dma = dma;
922
923 if (hardware == AD1848_HW_THINKPAD) {
924 chip->thinkpad_flag = 1;
925 chip->hardware = AD1848_HW_DETECT; /* reset */
926 snd_ad1848_thinkpad_twiddle(chip, 1);
927 snd_card_set_isa_pm_callback(card, snd_ad1848_suspend, snd_ad1848_resume, chip);
928 }
929
930 if (snd_ad1848_probe(chip) < 0) {
931 snd_ad1848_free(chip);
932 return -ENODEV;
933 }
934
935 /* Register device */
936 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
937 snd_ad1848_free(chip);
938 return err;
939 }
940
941 *rchip = chip;
942 return 0;
943 }
944
945 static snd_pcm_ops_t snd_ad1848_playback_ops = {
946 .open = snd_ad1848_playback_open,
947 .close = snd_ad1848_playback_close,
948 .ioctl = snd_ad1848_ioctl,
949 .hw_params = snd_ad1848_playback_hw_params,
950 .hw_free = snd_ad1848_playback_hw_free,
951 .prepare = snd_ad1848_playback_prepare,
952 .trigger = snd_ad1848_playback_trigger,
953 .pointer = snd_ad1848_playback_pointer,
954 };
955
956 static snd_pcm_ops_t snd_ad1848_capture_ops = {
957 .open = snd_ad1848_capture_open,
958 .close = snd_ad1848_capture_close,
959 .ioctl = snd_ad1848_ioctl,
960 .hw_params = snd_ad1848_capture_hw_params,
961 .hw_free = snd_ad1848_capture_hw_free,
962 .prepare = snd_ad1848_capture_prepare,
963 .trigger = snd_ad1848_capture_trigger,
964 .pointer = snd_ad1848_capture_pointer,
965 };
966
967 static void snd_ad1848_pcm_free(snd_pcm_t *pcm)
968 {
969 ad1848_t *chip = pcm->private_data;
970 chip->pcm = NULL;
971 snd_pcm_lib_preallocate_free_for_all(pcm);
972 }
973
974 int snd_ad1848_pcm(ad1848_t *chip, int device, snd_pcm_t **rpcm)
975 {
976 snd_pcm_t *pcm;
977 int err;
978
979 if ((err = snd_pcm_new(chip->card, "AD1848", device, 1, 1, &pcm)) < 0)
980 return err;
981
982 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1848_playback_ops);
983 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1848_capture_ops);
984
985 pcm->private_free = snd_ad1848_pcm_free;
986 pcm->private_data = chip;
987 pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
988 strcpy(pcm->name, snd_ad1848_chip_id(chip));
989
990 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
991 snd_dma_isa_data(),
992 64*1024, chip->dma > 3 ? 128*1024 : 64*1024);
993
994 chip->pcm = pcm;
995 if (rpcm)
996 *rpcm = pcm;
997 return 0;
998 }
999
1000 const snd_pcm_ops_t *snd_ad1848_get_pcm_ops(int direction)
1001 {
1002 return direction == SNDRV_PCM_STREAM_PLAYBACK ?
1003 &snd_ad1848_playback_ops : &snd_ad1848_capture_ops;
1004 }
1005
1006 /*
1007 * MIXER part
1008 */
1009
1010 static int snd_ad1848_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1011 {
1012 static char *texts[4] = {
1013 "Line", "Aux", "Mic", "Mix"
1014 };
1015
1016 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1017 uinfo->count = 2;
1018 uinfo->value.enumerated.items = 4;
1019 if (uinfo->value.enumerated.item > 3)
1020 uinfo->value.enumerated.item = 3;
1021 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1022 return 0;
1023 }
1024
1025 static int snd_ad1848_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1026 {
1027 ad1848_t *chip = snd_kcontrol_chip(kcontrol);
1028 unsigned long flags;
1029
1030 spin_lock_irqsave(&chip->reg_lock, flags);
1031 ucontrol->value.enumerated.item[0] = (chip->image[AD1848_LEFT_INPUT] & AD1848_MIXS_ALL) >> 6;
1032 ucontrol->value.enumerated.item[1] = (chip->image[AD1848_RIGHT_INPUT] & AD1848_MIXS_ALL) >> 6;
1033 spin_unlock_irqrestore(&chip->reg_lock, flags);
1034 return 0;
1035 }
1036
1037 static int snd_ad1848_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1038 {
1039 ad1848_t *chip = snd_kcontrol_chip(kcontrol);
1040 unsigned long flags;
1041 unsigned short left, right;
1042 int change;
1043
1044 if (ucontrol->value.enumerated.item[0] > 3 ||
1045 ucontrol->value.enumerated.item[1] > 3)
1046 return -EINVAL;
1047 left = ucontrol->value.enumerated.item[0] << 6;
1048 right = ucontrol->value.enumerated.item[1] << 6;
1049 spin_lock_irqsave(&chip->reg_lock, flags);
1050 left = (chip->image[AD1848_LEFT_INPUT] & ~AD1848_MIXS_ALL) | left;
1051 right = (chip->image[AD1848_RIGHT_INPUT] & ~AD1848_MIXS_ALL) | right;
1052 change = left != chip->image[AD1848_LEFT_INPUT] ||
1053 right != chip->image[AD1848_RIGHT_INPUT];
1054 snd_ad1848_out(chip, AD1848_LEFT_INPUT, left);
1055 snd_ad1848_out(chip, AD1848_RIGHT_INPUT, right);
1056 spin_unlock_irqrestore(&chip->reg_lock, flags);
1057 return change;
1058 }
1059
1060 static int snd_ad1848_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1061 {
1062 int mask = (kcontrol->private_value >> 16) & 0xff;
1063
1064 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1065 uinfo->count = 1;
1066 uinfo->value.integer.min = 0;
1067 uinfo->value.integer.max = mask;
1068 return 0;
1069 }
1070
1071 static int snd_ad1848_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1072 {
1073 ad1848_t *chip = snd_kcontrol_chip(kcontrol);
1074 unsigned long flags;
1075 int reg = kcontrol->private_value & 0xff;
1076 int shift = (kcontrol->private_value >> 8) & 0xff;
1077 int mask = (kcontrol->private_value >> 16) & 0xff;
1078 int invert = (kcontrol->private_value >> 24) & 0xff;
1079
1080 spin_lock_irqsave(&chip->reg_lock, flags);
1081 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1082 spin_unlock_irqrestore(&chip->reg_lock, flags);
1083 if (invert)
1084 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1085 return 0;
1086 }
1087
1088 static int snd_ad1848_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1089 {
1090 ad1848_t *chip = snd_kcontrol_chip(kcontrol);
1091 unsigned long flags;
1092 int reg = kcontrol->private_value & 0xff;
1093 int shift = (kcontrol->private_value >> 8) & 0xff;
1094 int mask = (kcontrol->private_value >> 16) & 0xff;
1095 int invert = (kcontrol->private_value >> 24) & 0xff;
1096 int change;
1097 unsigned short val;
1098
1099 val = (ucontrol->value.integer.value[0] & mask);
1100 if (invert)
1101 val = mask - val;
1102 val <<= shift;
1103 spin_lock_irqsave(&chip->reg_lock, flags);
1104 val = (chip->image[reg] & ~(mask << shift)) | val;
1105 change = val != chip->image[reg];
1106 snd_ad1848_out(chip, reg, val);
1107 spin_unlock_irqrestore(&chip->reg_lock, flags);
1108 return change;
1109 }
1110
1111 static int snd_ad1848_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1112 {
1113 int mask = (kcontrol->private_value >> 24) & 0xff;
1114
1115 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1116 uinfo->count = 2;
1117 uinfo->value.integer.min = 0;
1118 uinfo->value.integer.max = mask;
1119 return 0;
1120 }
1121
1122 static int snd_ad1848_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1123 {
1124 ad1848_t *chip = snd_kcontrol_chip(kcontrol);
1125 unsigned long flags;
1126 int left_reg = kcontrol->private_value & 0xff;
1127 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1128 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1129 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1130 int mask = (kcontrol->private_value >> 24) & 0xff;
1131 int invert = (kcontrol->private_value >> 22) & 1;
1132
1133 spin_lock_irqsave(&chip->reg_lock, flags);
1134 ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1135 ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1136 spin_unlock_irqrestore(&chip->reg_lock, flags);
1137 if (invert) {
1138 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1139 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1140 }
1141 return 0;
1142 }
1143
1144 static int snd_ad1848_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1145 {
1146 ad1848_t *chip = snd_kcontrol_chip(kcontrol);
1147 unsigned long flags;
1148 int left_reg = kcontrol->private_value & 0xff;
1149 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1150 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1151 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1152 int mask = (kcontrol->private_value >> 24) & 0xff;
1153 int invert = (kcontrol->private_value >> 22) & 1;
1154 int change;
1155 unsigned short val1, val2;
1156
1157 val1 = ucontrol->value.integer.value[0] & mask;
1158 val2 = ucontrol->value.integer.value[1] & mask;
1159 if (invert) {
1160 val1 = mask - val1;
1161 val2 = mask - val2;
1162 }
1163 val1 <<= shift_left;
1164 val2 <<= shift_right;
1165 spin_lock_irqsave(&chip->reg_lock, flags);
1166 if (left_reg != right_reg) {
1167 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1168 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1169 change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1170 snd_ad1848_out(chip, left_reg, val1);
1171 snd_ad1848_out(chip, right_reg, val2);
1172 } else {
1173 val1 = (chip->image[left_reg] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
1174 change = val1 != chip->image[left_reg];
1175 snd_ad1848_out(chip, left_reg, val1);
1176 }
1177 spin_unlock_irqrestore(&chip->reg_lock, flags);
1178 return change;
1179 }
1180
1181 /*
1182 */
1183 int snd_ad1848_add_ctl(ad1848_t *chip, const char *name, int index, int type, unsigned long value)
1184 {
1185 static snd_kcontrol_new_t newctls[] = {
1186 [AD1848_MIX_SINGLE] = {
1187 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1188 .info = snd_ad1848_info_single,
1189 .get = snd_ad1848_get_single,
1190 .put = snd_ad1848_put_single,
1191 },
1192 [AD1848_MIX_DOUBLE] = {
1193 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1194 .info = snd_ad1848_info_double,
1195 .get = snd_ad1848_get_double,
1196 .put = snd_ad1848_put_double,
1197 },
1198 [AD1848_MIX_CAPTURE] = {
1199 .info = snd_ad1848_info_mux,
1200 .get = snd_ad1848_get_mux,
1201 .put = snd_ad1848_put_mux,
1202 },
1203 };
1204 snd_kcontrol_t *ctl;
1205 int err;
1206
1207 ctl = snd_ctl_new1(&newctls[type], chip);
1208 if (! ctl)
1209 return -ENOMEM;
1210 strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
1211 ctl->id.index = index;
1212 ctl->private_value = value;
1213 if ((err = snd_ctl_add(chip->card, ctl)) < 0) {
1214 snd_ctl_free_one(ctl);
1215 return err;
1216 }
1217 return 0;
1218 }
1219
1220
1221 static struct ad1848_mix_elem snd_ad1848_controls[] = {
1222 AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),
1223 AD1848_DOUBLE("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1),
1224 AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1225 AD1848_DOUBLE("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1226 AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1227 AD1848_DOUBLE("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1228 AD1848_DOUBLE("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0),
1229 {
1230 .name = "Capture Source",
1231 .type = AD1848_MIX_CAPTURE,
1232 },
1233 AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0),
1234 AD1848_SINGLE("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0)
1235 };
1236
1237 int snd_ad1848_mixer(ad1848_t *chip)
1238 {
1239 snd_card_t *card;
1240 snd_pcm_t *pcm;
1241 unsigned int idx;
1242 int err;
1243
1244 snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1245
1246 pcm = chip->pcm;
1247 card = chip->card;
1248
1249 strcpy(card->mixername, pcm->name);
1250
1251 for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++)
1252 if ((err = snd_ad1848_add_ctl_elem(chip, &snd_ad1848_controls[idx])) < 0)
1253 return err;
1254
1255 return 0;
1256 }
1257
1258 EXPORT_SYMBOL(snd_ad1848_out);
1259 EXPORT_SYMBOL(snd_ad1848_create);
1260 EXPORT_SYMBOL(snd_ad1848_pcm);
1261 EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
1262 EXPORT_SYMBOL(snd_ad1848_mixer);
1263 EXPORT_SYMBOL(snd_ad1848_add_ctl);
1264
1265 /*
1266 * INIT part
1267 */
1268
1269 static int __init alsa_ad1848_init(void)
1270 {
1271 return 0;
1272 }
1273
1274 static void __exit alsa_ad1848_exit(void)
1275 {
1276 }
1277
1278 module_init(alsa_ad1848_init)
1279 module_exit(alsa_ad1848_exit)
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree