2 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
3 * Routines for control of AD1848/AD1847/CS4248
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.
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.
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
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/slab.h>
28 #include <linux/ioport.h>
29 #include <sound/core.h>
30 #include <sound/ad1848.h>
31 #include <sound/control.h>
32 #include <sound/pcm_params.h>
37 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
38 MODULE_DESCRIPTION("Routines for control of AD1848/AD1847/CS4248");
39 MODULE_LICENSE("GPL");
42 #define SNDRV_DEBUG_MCE
49 static unsigned char freq_bits[14] = {
50 /* 5510 */ 0x00 | AD1848_XTAL2,
51 /* 6620 */ 0x0E | AD1848_XTAL2,
52 /* 8000 */ 0x00 | AD1848_XTAL1,
53 /* 9600 */ 0x0E | AD1848_XTAL1,
54 /* 11025 */ 0x02 | AD1848_XTAL2,
55 /* 16000 */ 0x02 | AD1848_XTAL1,
56 /* 18900 */ 0x04 | AD1848_XTAL2,
57 /* 22050 */ 0x06 | AD1848_XTAL2,
58 /* 27042 */ 0x04 | AD1848_XTAL1,
59 /* 32000 */ 0x06 | AD1848_XTAL1,
60 /* 33075 */ 0x0C | AD1848_XTAL2,
61 /* 37800 */ 0x08 | AD1848_XTAL2,
62 /* 44100 */ 0x0A | AD1848_XTAL2,
63 /* 48000 */ 0x0C | AD1848_XTAL1
66 static unsigned int rates[14] = {
67 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
68 27042, 32000, 33075, 37800, 44100, 48000
71 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
77 static unsigned char snd_ad1848_original_image[16] =
81 0x9f, /* 02 - la1ic */
82 0x9f, /* 03 - ra1ic */
83 0x9f, /* 04 - la2ic */
84 0x9f, /* 05 - ra2ic */
88 AD1848_AUTOCALIB, /* 09 - ic */
101 void snd_ad1848_out(struct snd_ad1848 *chip,
107 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
109 #ifdef CONFIG_SND_DEBUG
110 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
111 snd_printk(KERN_WARNING "auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
113 outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
114 outb(chip->image[reg] = value, AD1848P(chip, REG));
117 printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value);
121 static void snd_ad1848_dout(struct snd_ad1848 *chip,
122 unsigned char reg, unsigned char value)
126 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
128 outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
129 outb(value, AD1848P(chip, REG));
133 static unsigned char snd_ad1848_in(struct snd_ad1848 *chip, unsigned char reg)
137 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
139 #ifdef CONFIG_SND_DEBUG
140 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
141 snd_printk(KERN_WARNING "auto calibration time out - reg = 0x%x\n", reg);
143 outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
145 return inb(AD1848P(chip, REG));
150 static void snd_ad1848_debug(struct snd_ad1848 *chip)
152 printk("AD1848 REGS: INDEX = 0x%02x ", inb(AD1848P(chip, REGSEL)));
153 printk(" STATUS = 0x%02x\n", inb(AD1848P(chip, STATUS)));
154 printk(" 0x00: left input = 0x%02x ", snd_ad1848_in(chip, 0x00));
155 printk(" 0x08: playback format = 0x%02x\n", snd_ad1848_in(chip, 0x08));
156 printk(" 0x01: right input = 0x%02x ", snd_ad1848_in(chip, 0x01));
157 printk(" 0x09: iface (CFIG 1) = 0x%02x\n", snd_ad1848_in(chip, 0x09));
158 printk(" 0x02: AUXA left = 0x%02x ", snd_ad1848_in(chip, 0x02));
159 printk(" 0x0a: pin control = 0x%02x\n", snd_ad1848_in(chip, 0x0a));
160 printk(" 0x03: AUXA right = 0x%02x ", snd_ad1848_in(chip, 0x03));
161 printk(" 0x0b: init & status = 0x%02x\n", snd_ad1848_in(chip, 0x0b));
162 printk(" 0x04: AUXB left = 0x%02x ", snd_ad1848_in(chip, 0x04));
163 printk(" 0x0c: revision & mode = 0x%02x\n", snd_ad1848_in(chip, 0x0c));
164 printk(" 0x05: AUXB right = 0x%02x ", snd_ad1848_in(chip, 0x05));
165 printk(" 0x0d: loopback = 0x%02x\n", snd_ad1848_in(chip, 0x0d));
166 printk(" 0x06: left output = 0x%02x ", snd_ad1848_in(chip, 0x06));
167 printk(" 0x0e: data upr count = 0x%02x\n", snd_ad1848_in(chip, 0x0e));
168 printk(" 0x07: right output = 0x%02x ", snd_ad1848_in(chip, 0x07));
169 printk(" 0x0f: data lwr count = 0x%02x\n", snd_ad1848_in(chip, 0x0f));
175 * AD1848 detection / MCE routines
178 static void snd_ad1848_mce_up(struct snd_ad1848 *chip)
183 for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
185 #ifdef CONFIG_SND_DEBUG
186 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
187 snd_printk(KERN_WARNING "mce_up - auto calibration time out (0)\n");
189 spin_lock_irqsave(&chip->reg_lock, flags);
190 chip->mce_bit |= AD1848_MCE;
191 timeout = inb(AD1848P(chip, REGSEL));
193 snd_printk(KERN_WARNING "mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
194 if (!(timeout & AD1848_MCE))
195 outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
196 spin_unlock_irqrestore(&chip->reg_lock, flags);
199 static void snd_ad1848_mce_down(struct snd_ad1848 *chip)
205 spin_lock_irqsave(&chip->reg_lock, flags);
206 for (timeout = 5; timeout > 0; timeout--)
207 inb(AD1848P(chip, REGSEL));
208 /* end of cleanup sequence */
209 for (timeout = 12000; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
212 printk("(1) timeout = %i\n", timeout);
214 #ifdef CONFIG_SND_DEBUG
215 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
216 snd_printk(KERN_WARNING "mce_down [0x%lx] - auto calibration time out (0)\n", AD1848P(chip, REGSEL));
218 chip->mce_bit &= ~AD1848_MCE;
219 timeout = inb(AD1848P(chip, REGSEL));
220 outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
222 snd_printk(KERN_WARNING "mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
223 if ((timeout & AD1848_MCE) == 0) {
224 spin_unlock_irqrestore(&chip->reg_lock, flags);
227 /* calibration process */
229 for (timeout = 500; timeout > 0 && (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0; timeout--);
230 if ((snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0) {
231 snd_printd("mce_down - auto calibration time out (1)\n");
232 spin_unlock_irqrestore(&chip->reg_lock, flags);
236 printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies);
239 while (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) {
240 spin_unlock_irqrestore(&chip->reg_lock, flags);
242 snd_printk(KERN_ERR "mce_down - auto calibration time out (2)\n");
245 time = schedule_timeout_interruptible(time);
246 spin_lock_irqsave(&chip->reg_lock, flags);
249 printk("(3) jiffies = %li\n", jiffies);
252 while (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) {
253 spin_unlock_irqrestore(&chip->reg_lock, flags);
255 snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
258 time = schedule_timeout_interruptible(time);
259 spin_lock_irqsave(&chip->reg_lock, flags);
261 spin_unlock_irqrestore(&chip->reg_lock, flags);
263 printk("(4) jiffies = %li\n", jiffies);
264 snd_printk("mce_down - exit = 0x%x\n", inb(AD1848P(chip, REGSEL)));
268 static unsigned int snd_ad1848_get_count(unsigned char format,
271 switch (format & 0xe0) {
272 case AD1848_LINEAR_16:
276 if (format & AD1848_STEREO)
281 static int snd_ad1848_trigger(struct snd_ad1848 *chip, unsigned char what,
282 int channel, int cmd)
287 printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, inb(AD1848P(card, STATUS)));
289 spin_lock(&chip->reg_lock);
290 if (cmd == SNDRV_PCM_TRIGGER_START) {
291 if (chip->image[AD1848_IFACE_CTRL] & what) {
292 spin_unlock(&chip->reg_lock);
295 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] |= what);
296 chip->mode |= AD1848_MODE_RUNNING;
297 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
298 if (!(chip->image[AD1848_IFACE_CTRL] & what)) {
299 spin_unlock(&chip->reg_lock);
302 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] &= ~what);
303 chip->mode &= ~AD1848_MODE_RUNNING;
307 spin_unlock(&chip->reg_lock);
315 static unsigned char snd_ad1848_get_rate(unsigned int rate)
319 for (i = 0; i < 14; i++)
320 if (rate == rates[i])
323 return freq_bits[13];
326 static int snd_ad1848_ioctl(struct snd_pcm_substream *substream,
327 unsigned int cmd, void *arg)
329 return snd_pcm_lib_ioctl(substream, cmd, arg);
332 static unsigned char snd_ad1848_get_format(int format, int channels)
334 unsigned char rformat;
336 rformat = AD1848_LINEAR_8;
338 case SNDRV_PCM_FORMAT_A_LAW: rformat = AD1848_ALAW_8; break;
339 case SNDRV_PCM_FORMAT_MU_LAW: rformat = AD1848_ULAW_8; break;
340 case SNDRV_PCM_FORMAT_S16_LE: rformat = AD1848_LINEAR_16; break;
343 rformat |= AD1848_STEREO;
345 snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
350 static void snd_ad1848_calibrate_mute(struct snd_ad1848 *chip, int mute)
355 spin_lock_irqsave(&chip->reg_lock, flags);
356 if (chip->calibrate_mute == mute) {
357 spin_unlock_irqrestore(&chip->reg_lock, flags);
361 snd_ad1848_dout(chip, AD1848_LEFT_INPUT, chip->image[AD1848_LEFT_INPUT]);
362 snd_ad1848_dout(chip, AD1848_RIGHT_INPUT, chip->image[AD1848_RIGHT_INPUT]);
364 snd_ad1848_dout(chip, AD1848_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_LEFT_INPUT]);
365 snd_ad1848_dout(chip, AD1848_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_RIGHT_INPUT]);
366 snd_ad1848_dout(chip, AD1848_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_LEFT_INPUT]);
367 snd_ad1848_dout(chip, AD1848_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_RIGHT_INPUT]);
368 snd_ad1848_dout(chip, AD1848_LEFT_OUTPUT, mute ? 0x80 : chip->image[AD1848_LEFT_OUTPUT]);
369 snd_ad1848_dout(chip, AD1848_RIGHT_OUTPUT, mute ? 0x80 : chip->image[AD1848_RIGHT_OUTPUT]);
370 chip->calibrate_mute = mute;
371 spin_unlock_irqrestore(&chip->reg_lock, flags);
374 static void snd_ad1848_set_data_format(struct snd_ad1848 *chip, struct snd_pcm_hw_params *hw_params)
376 if (hw_params == NULL) {
377 chip->image[AD1848_DATA_FORMAT] = 0x20;
379 chip->image[AD1848_DATA_FORMAT] =
380 snd_ad1848_get_format(params_format(hw_params), params_channels(hw_params)) |
381 snd_ad1848_get_rate(params_rate(hw_params));
383 // snd_printk(">>> pmode = 0x%x, dfr = 0x%x\n", pstr->mode, chip->image[AD1848_DATA_FORMAT]);
386 static int snd_ad1848_open(struct snd_ad1848 *chip, unsigned int mode)
390 mutex_lock(&chip->open_mutex);
391 if (chip->mode & AD1848_MODE_OPEN) {
392 mutex_unlock(&chip->open_mutex);
395 snd_ad1848_mce_down(chip);
397 #ifdef SNDRV_DEBUG_MCE
398 snd_printk("open: (1)\n");
400 snd_ad1848_mce_up(chip);
401 spin_lock_irqsave(&chip->reg_lock, flags);
402 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
403 AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO |
405 chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB;
406 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
407 spin_unlock_irqrestore(&chip->reg_lock, flags);
408 snd_ad1848_mce_down(chip);
410 #ifdef SNDRV_DEBUG_MCE
411 snd_printk("open: (2)\n");
414 snd_ad1848_set_data_format(chip, NULL);
416 snd_ad1848_mce_up(chip);
417 spin_lock_irqsave(&chip->reg_lock, flags);
418 snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
419 spin_unlock_irqrestore(&chip->reg_lock, flags);
420 snd_ad1848_mce_down(chip);
422 #ifdef SNDRV_DEBUG_MCE
423 snd_printk("open: (3)\n");
426 /* ok. now enable and ack CODEC IRQ */
427 spin_lock_irqsave(&chip->reg_lock, flags);
428 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
429 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
430 chip->image[AD1848_PIN_CTRL] |= AD1848_IRQ_ENABLE;
431 snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
432 spin_unlock_irqrestore(&chip->reg_lock, flags);
435 mutex_unlock(&chip->open_mutex);
440 static void snd_ad1848_close(struct snd_ad1848 *chip)
444 mutex_lock(&chip->open_mutex);
446 mutex_unlock(&chip->open_mutex);
450 spin_lock_irqsave(&chip->reg_lock, flags);
451 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
452 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
453 chip->image[AD1848_PIN_CTRL] &= ~AD1848_IRQ_ENABLE;
454 snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
455 spin_unlock_irqrestore(&chip->reg_lock, flags);
457 /* now disable capture & playback */
459 snd_ad1848_mce_up(chip);
460 spin_lock_irqsave(&chip->reg_lock, flags);
461 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
462 AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
463 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
464 spin_unlock_irqrestore(&chip->reg_lock, flags);
465 snd_ad1848_mce_down(chip);
467 /* clear IRQ again */
468 spin_lock_irqsave(&chip->reg_lock, flags);
469 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
470 outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
471 spin_unlock_irqrestore(&chip->reg_lock, flags);
474 mutex_unlock(&chip->open_mutex);
478 * ok.. exported functions..
481 static int snd_ad1848_playback_trigger(struct snd_pcm_substream *substream,
484 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
485 return snd_ad1848_trigger(chip, AD1848_PLAYBACK_ENABLE, SNDRV_PCM_STREAM_PLAYBACK, cmd);
488 static int snd_ad1848_capture_trigger(struct snd_pcm_substream *substream,
491 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
492 return snd_ad1848_trigger(chip, AD1848_CAPTURE_ENABLE, SNDRV_PCM_STREAM_CAPTURE, cmd);
495 static int snd_ad1848_playback_hw_params(struct snd_pcm_substream *substream,
496 struct snd_pcm_hw_params *hw_params)
498 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
502 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
504 snd_ad1848_calibrate_mute(chip, 1);
505 snd_ad1848_set_data_format(chip, hw_params);
506 snd_ad1848_mce_up(chip);
507 spin_lock_irqsave(&chip->reg_lock, flags);
508 snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
509 spin_unlock_irqrestore(&chip->reg_lock, flags);
510 snd_ad1848_mce_down(chip);
511 snd_ad1848_calibrate_mute(chip, 0);
515 static int snd_ad1848_playback_hw_free(struct snd_pcm_substream *substream)
517 return snd_pcm_lib_free_pages(substream);
520 static int snd_ad1848_playback_prepare(struct snd_pcm_substream *substream)
522 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
523 struct snd_pcm_runtime *runtime = substream->runtime;
525 unsigned int size = snd_pcm_lib_buffer_bytes(substream);
526 unsigned int count = snd_pcm_lib_period_bytes(substream);
528 chip->dma_size = size;
529 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO);
530 snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
531 count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
532 spin_lock_irqsave(&chip->reg_lock, flags);
533 snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
534 snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
535 spin_unlock_irqrestore(&chip->reg_lock, flags);
539 static int snd_ad1848_capture_hw_params(struct snd_pcm_substream *substream,
540 struct snd_pcm_hw_params *hw_params)
542 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
546 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
548 snd_ad1848_calibrate_mute(chip, 1);
549 snd_ad1848_set_data_format(chip, hw_params);
550 snd_ad1848_mce_up(chip);
551 spin_lock_irqsave(&chip->reg_lock, flags);
552 snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
553 spin_unlock_irqrestore(&chip->reg_lock, flags);
554 snd_ad1848_mce_down(chip);
555 snd_ad1848_calibrate_mute(chip, 0);
559 static int snd_ad1848_capture_hw_free(struct snd_pcm_substream *substream)
561 return snd_pcm_lib_free_pages(substream);
564 static int snd_ad1848_capture_prepare(struct snd_pcm_substream *substream)
566 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
567 struct snd_pcm_runtime *runtime = substream->runtime;
569 unsigned int size = snd_pcm_lib_buffer_bytes(substream);
570 unsigned int count = snd_pcm_lib_period_bytes(substream);
572 chip->dma_size = size;
573 chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
574 snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
575 count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
576 spin_lock_irqsave(&chip->reg_lock, flags);
577 snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
578 snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
579 spin_unlock_irqrestore(&chip->reg_lock, flags);
583 static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id, struct pt_regs *regs)
585 struct snd_ad1848 *chip = dev_id;
587 if ((chip->mode & AD1848_MODE_PLAY) && chip->playback_substream &&
588 (chip->mode & AD1848_MODE_RUNNING))
589 snd_pcm_period_elapsed(chip->playback_substream);
590 if ((chip->mode & AD1848_MODE_CAPTURE) && chip->capture_substream &&
591 (chip->mode & AD1848_MODE_RUNNING))
592 snd_pcm_period_elapsed(chip->capture_substream);
593 outb(0, AD1848P(chip, STATUS)); /* clear global interrupt bit */
597 static snd_pcm_uframes_t snd_ad1848_playback_pointer(struct snd_pcm_substream *substream)
599 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
602 if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_PLAYBACK_ENABLE))
604 ptr = snd_dma_pointer(chip->dma, chip->dma_size);
605 return bytes_to_frames(substream->runtime, ptr);
608 static snd_pcm_uframes_t snd_ad1848_capture_pointer(struct snd_pcm_substream *substream)
610 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
613 if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_CAPTURE_ENABLE))
615 ptr = snd_dma_pointer(chip->dma, chip->dma_size);
616 return bytes_to_frames(substream->runtime, ptr);
623 static void snd_ad1848_thinkpad_twiddle(struct snd_ad1848 *chip, int on) {
627 if (!chip->thinkpad_flag) return;
629 outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
630 tmp = inb(AD1848_THINKPAD_CTL_PORT2);
634 tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
637 tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
639 outb(tmp, AD1848_THINKPAD_CTL_PORT2);
644 static void snd_ad1848_suspend(struct snd_ad1848 *chip)
646 snd_pcm_suspend_all(chip->pcm);
647 if (chip->thinkpad_flag)
648 snd_ad1848_thinkpad_twiddle(chip, 0);
651 static void snd_ad1848_resume(struct snd_ad1848 *chip)
655 if (chip->thinkpad_flag)
656 snd_ad1848_thinkpad_twiddle(chip, 1);
658 /* clear any pendings IRQ */
659 inb(AD1848P(chip, STATUS));
660 outb(0, AD1848P(chip, STATUS));
663 snd_ad1848_mce_down(chip);
664 for (i = 0; i < 16; i++)
665 snd_ad1848_out(chip, i, chip->image[i]);
666 snd_ad1848_mce_up(chip);
667 snd_ad1848_mce_down(chip);
669 #endif /* CONFIG_PM */
671 static int snd_ad1848_probe(struct snd_ad1848 * chip)
674 int i, id, rev, ad1847;
678 snd_ad1848_debug(chip);
681 for (i = 0; i < 1000; i++) {
683 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
686 spin_lock_irqsave(&chip->reg_lock, flags);
687 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
688 snd_ad1848_out(chip, AD1848_LEFT_INPUT, 0xaa);
689 snd_ad1848_out(chip, AD1848_RIGHT_INPUT, 0x45);
690 rev = snd_ad1848_in(chip, AD1848_RIGHT_INPUT);
692 spin_unlock_irqrestore(&chip->reg_lock, flags);
697 if (snd_ad1848_in(chip, AD1848_LEFT_INPUT) == 0xaa && rev == 0x45) {
698 spin_unlock_irqrestore(&chip->reg_lock, flags);
702 spin_unlock_irqrestore(&chip->reg_lock, flags);
706 return -ENODEV; /* no valid device found */
707 if (chip->hardware == AD1848_HW_DETECT) {
709 chip->hardware = AD1848_HW_AD1847;
711 chip->hardware = AD1848_HW_AD1848;
712 rev = snd_ad1848_in(chip, AD1848_MISC_INFO);
714 chip->hardware = AD1848_HW_CS4248;
715 } else if ((rev & 0x0f) == 0x0a) {
716 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x40);
717 for (i = 0; i < 16; ++i) {
718 if (snd_ad1848_in(chip, i) != snd_ad1848_in(chip, i + 16)) {
719 chip->hardware = AD1848_HW_CMI8330;
723 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
727 spin_lock_irqsave(&chip->reg_lock, flags);
728 inb(AD1848P(chip, STATUS)); /* clear any pendings IRQ */
729 outb(0, AD1848P(chip, STATUS));
731 spin_unlock_irqrestore(&chip->reg_lock, flags);
733 chip->image[AD1848_MISC_INFO] = 0x00;
734 chip->image[AD1848_IFACE_CTRL] =
735 (chip->image[AD1848_IFACE_CTRL] & ~AD1848_SINGLE_DMA) | AD1848_SINGLE_DMA;
736 ptr = (unsigned char *) &chip->image;
737 snd_ad1848_mce_down(chip);
738 spin_lock_irqsave(&chip->reg_lock, flags);
739 for (i = 0; i < 16; i++) /* ok.. fill all AD1848 registers */
740 snd_ad1848_out(chip, i, *ptr++);
741 spin_unlock_irqrestore(&chip->reg_lock, flags);
742 snd_ad1848_mce_up(chip);
743 snd_ad1848_mce_down(chip);
744 return 0; /* all things are ok.. */
751 static struct snd_pcm_hardware snd_ad1848_playback =
753 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
754 SNDRV_PCM_INFO_MMAP_VALID),
755 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
756 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
757 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
762 .buffer_bytes_max = (128*1024),
763 .period_bytes_min = 64,
764 .period_bytes_max = (128*1024),
770 static struct snd_pcm_hardware snd_ad1848_capture =
772 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
773 SNDRV_PCM_INFO_MMAP_VALID),
774 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
775 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
776 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
781 .buffer_bytes_max = (128*1024),
782 .period_bytes_min = 64,
783 .period_bytes_max = (128*1024),
793 static int snd_ad1848_playback_open(struct snd_pcm_substream *substream)
795 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
796 struct snd_pcm_runtime *runtime = substream->runtime;
799 if ((err = snd_ad1848_open(chip, AD1848_MODE_PLAY)) < 0)
801 chip->playback_substream = substream;
802 runtime->hw = snd_ad1848_playback;
803 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
804 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
805 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
809 static int snd_ad1848_capture_open(struct snd_pcm_substream *substream)
811 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
812 struct snd_pcm_runtime *runtime = substream->runtime;
815 if ((err = snd_ad1848_open(chip, AD1848_MODE_CAPTURE)) < 0)
817 chip->capture_substream = substream;
818 runtime->hw = snd_ad1848_capture;
819 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
820 snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
821 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
825 static int snd_ad1848_playback_close(struct snd_pcm_substream *substream)
827 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
829 chip->mode &= ~AD1848_MODE_PLAY;
830 chip->playback_substream = NULL;
831 snd_ad1848_close(chip);
835 static int snd_ad1848_capture_close(struct snd_pcm_substream *substream)
837 struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
839 chip->mode &= ~AD1848_MODE_CAPTURE;
840 chip->capture_substream = NULL;
841 snd_ad1848_close(chip);
845 static int snd_ad1848_free(struct snd_ad1848 *chip)
847 release_and_free_resource(chip->res_port);
849 free_irq(chip->irq, (void *) chip);
850 if (chip->dma >= 0) {
851 snd_dma_disable(chip->dma);
858 static int snd_ad1848_dev_free(struct snd_device *device)
860 struct snd_ad1848 *chip = device->device_data;
861 return snd_ad1848_free(chip);
864 static const char *snd_ad1848_chip_id(struct snd_ad1848 *chip)
866 switch (chip->hardware) {
867 case AD1848_HW_AD1847: return "AD1847";
868 case AD1848_HW_AD1848: return "AD1848";
869 case AD1848_HW_CS4248: return "CS4248";
870 case AD1848_HW_CMI8330: return "CMI8330/C3D";
871 default: return "???";
875 int snd_ad1848_create(struct snd_card *card,
878 unsigned short hardware,
879 struct snd_ad1848 ** rchip)
881 static struct snd_device_ops ops = {
882 .dev_free = snd_ad1848_dev_free,
884 struct snd_ad1848 *chip;
888 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
891 spin_lock_init(&chip->reg_lock);
892 mutex_init(&chip->open_mutex);
897 chip->hardware = hardware;
898 memcpy(&chip->image, &snd_ad1848_original_image, sizeof(snd_ad1848_original_image));
900 if ((chip->res_port = request_region(port, 4, "AD1848")) == NULL) {
901 snd_printk(KERN_ERR "ad1848: can't grab port 0x%lx\n", port);
902 snd_ad1848_free(chip);
905 if (request_irq(irq, snd_ad1848_interrupt, SA_INTERRUPT, "AD1848", (void *) chip)) {
906 snd_printk(KERN_ERR "ad1848: can't grab IRQ %d\n", irq);
907 snd_ad1848_free(chip);
911 if (request_dma(dma, "AD1848")) {
912 snd_printk(KERN_ERR "ad1848: can't grab DMA %d\n", dma);
913 snd_ad1848_free(chip);
918 if (hardware == AD1848_HW_THINKPAD) {
919 chip->thinkpad_flag = 1;
920 chip->hardware = AD1848_HW_DETECT; /* reset */
921 snd_ad1848_thinkpad_twiddle(chip, 1);
924 if (snd_ad1848_probe(chip) < 0) {
925 snd_ad1848_free(chip);
929 /* Register device */
930 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
931 snd_ad1848_free(chip);
936 chip->suspend = snd_ad1848_suspend;
937 chip->resume = snd_ad1848_resume;
944 static struct snd_pcm_ops snd_ad1848_playback_ops = {
945 .open = snd_ad1848_playback_open,
946 .close = snd_ad1848_playback_close,
947 .ioctl = snd_ad1848_ioctl,
948 .hw_params = snd_ad1848_playback_hw_params,
949 .hw_free = snd_ad1848_playback_hw_free,
950 .prepare = snd_ad1848_playback_prepare,
951 .trigger = snd_ad1848_playback_trigger,
952 .pointer = snd_ad1848_playback_pointer,
955 static struct snd_pcm_ops snd_ad1848_capture_ops = {
956 .open = snd_ad1848_capture_open,
957 .close = snd_ad1848_capture_close,
958 .ioctl = snd_ad1848_ioctl,
959 .hw_params = snd_ad1848_capture_hw_params,
960 .hw_free = snd_ad1848_capture_hw_free,
961 .prepare = snd_ad1848_capture_prepare,
962 .trigger = snd_ad1848_capture_trigger,
963 .pointer = snd_ad1848_capture_pointer,
966 int snd_ad1848_pcm(struct snd_ad1848 *chip, int device, struct snd_pcm **rpcm)
971 if ((err = snd_pcm_new(chip->card, "AD1848", device, 1, 1, &pcm)) < 0)
974 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1848_playback_ops);
975 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1848_capture_ops);
977 pcm->private_data = chip;
978 pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
979 strcpy(pcm->name, snd_ad1848_chip_id(chip));
981 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
983 64*1024, chip->dma > 3 ? 128*1024 : 64*1024);
991 const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction)
993 return direction == SNDRV_PCM_STREAM_PLAYBACK ?
994 &snd_ad1848_playback_ops : &snd_ad1848_capture_ops;
1001 static int snd_ad1848_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1003 static char *texts[4] = {
1004 "Line", "Aux", "Mic", "Mix"
1007 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1009 uinfo->value.enumerated.items = 4;
1010 if (uinfo->value.enumerated.item > 3)
1011 uinfo->value.enumerated.item = 3;
1012 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1016 static int snd_ad1848_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1018 struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1019 unsigned long flags;
1021 spin_lock_irqsave(&chip->reg_lock, flags);
1022 ucontrol->value.enumerated.item[0] = (chip->image[AD1848_LEFT_INPUT] & AD1848_MIXS_ALL) >> 6;
1023 ucontrol->value.enumerated.item[1] = (chip->image[AD1848_RIGHT_INPUT] & AD1848_MIXS_ALL) >> 6;
1024 spin_unlock_irqrestore(&chip->reg_lock, flags);
1028 static int snd_ad1848_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1030 struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1031 unsigned long flags;
1032 unsigned short left, right;
1035 if (ucontrol->value.enumerated.item[0] > 3 ||
1036 ucontrol->value.enumerated.item[1] > 3)
1038 left = ucontrol->value.enumerated.item[0] << 6;
1039 right = ucontrol->value.enumerated.item[1] << 6;
1040 spin_lock_irqsave(&chip->reg_lock, flags);
1041 left = (chip->image[AD1848_LEFT_INPUT] & ~AD1848_MIXS_ALL) | left;
1042 right = (chip->image[AD1848_RIGHT_INPUT] & ~AD1848_MIXS_ALL) | right;
1043 change = left != chip->image[AD1848_LEFT_INPUT] ||
1044 right != chip->image[AD1848_RIGHT_INPUT];
1045 snd_ad1848_out(chip, AD1848_LEFT_INPUT, left);
1046 snd_ad1848_out(chip, AD1848_RIGHT_INPUT, right);
1047 spin_unlock_irqrestore(&chip->reg_lock, flags);
1051 static int snd_ad1848_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1053 int mask = (kcontrol->private_value >> 16) & 0xff;
1055 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1057 uinfo->value.integer.min = 0;
1058 uinfo->value.integer.max = mask;
1062 static int snd_ad1848_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1064 struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1065 unsigned long flags;
1066 int reg = kcontrol->private_value & 0xff;
1067 int shift = (kcontrol->private_value >> 8) & 0xff;
1068 int mask = (kcontrol->private_value >> 16) & 0xff;
1069 int invert = (kcontrol->private_value >> 24) & 0xff;
1071 spin_lock_irqsave(&chip->reg_lock, flags);
1072 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1073 spin_unlock_irqrestore(&chip->reg_lock, flags);
1075 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1079 static int snd_ad1848_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1081 struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1082 unsigned long flags;
1083 int reg = kcontrol->private_value & 0xff;
1084 int shift = (kcontrol->private_value >> 8) & 0xff;
1085 int mask = (kcontrol->private_value >> 16) & 0xff;
1086 int invert = (kcontrol->private_value >> 24) & 0xff;
1090 val = (ucontrol->value.integer.value[0] & mask);
1094 spin_lock_irqsave(&chip->reg_lock, flags);
1095 val = (chip->image[reg] & ~(mask << shift)) | val;
1096 change = val != chip->image[reg];
1097 snd_ad1848_out(chip, reg, val);
1098 spin_unlock_irqrestore(&chip->reg_lock, flags);
1102 static int snd_ad1848_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1104 int mask = (kcontrol->private_value >> 24) & 0xff;
1106 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1108 uinfo->value.integer.min = 0;
1109 uinfo->value.integer.max = mask;
1113 static int snd_ad1848_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1115 struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1116 unsigned long flags;
1117 int left_reg = kcontrol->private_value & 0xff;
1118 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1119 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1120 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1121 int mask = (kcontrol->private_value >> 24) & 0xff;
1122 int invert = (kcontrol->private_value >> 22) & 1;
1124 spin_lock_irqsave(&chip->reg_lock, flags);
1125 ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1126 ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1127 spin_unlock_irqrestore(&chip->reg_lock, flags);
1129 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1130 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1135 static int snd_ad1848_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1137 struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1138 unsigned long flags;
1139 int left_reg = kcontrol->private_value & 0xff;
1140 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1141 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1142 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1143 int mask = (kcontrol->private_value >> 24) & 0xff;
1144 int invert = (kcontrol->private_value >> 22) & 1;
1146 unsigned short val1, val2;
1148 val1 = ucontrol->value.integer.value[0] & mask;
1149 val2 = ucontrol->value.integer.value[1] & mask;
1154 val1 <<= shift_left;
1155 val2 <<= shift_right;
1156 spin_lock_irqsave(&chip->reg_lock, flags);
1157 if (left_reg != right_reg) {
1158 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1159 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1160 change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1161 snd_ad1848_out(chip, left_reg, val1);
1162 snd_ad1848_out(chip, right_reg, val2);
1164 val1 = (chip->image[left_reg] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
1165 change = val1 != chip->image[left_reg];
1166 snd_ad1848_out(chip, left_reg, val1);
1168 spin_unlock_irqrestore(&chip->reg_lock, flags);
1174 int snd_ad1848_add_ctl(struct snd_ad1848 *chip, const char *name, int index, int type, unsigned long value)
1176 static struct snd_kcontrol_new newctls[] = {
1177 [AD1848_MIX_SINGLE] = {
1178 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1179 .info = snd_ad1848_info_single,
1180 .get = snd_ad1848_get_single,
1181 .put = snd_ad1848_put_single,
1183 [AD1848_MIX_DOUBLE] = {
1184 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1185 .info = snd_ad1848_info_double,
1186 .get = snd_ad1848_get_double,
1187 .put = snd_ad1848_put_double,
1189 [AD1848_MIX_CAPTURE] = {
1190 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1191 .info = snd_ad1848_info_mux,
1192 .get = snd_ad1848_get_mux,
1193 .put = snd_ad1848_put_mux,
1196 struct snd_kcontrol *ctl;
1199 ctl = snd_ctl_new1(&newctls[type], chip);
1202 strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
1203 ctl->id.index = index;
1204 ctl->private_value = value;
1205 if ((err = snd_ctl_add(chip->card, ctl)) < 0)
1211 static struct ad1848_mix_elem snd_ad1848_controls[] = {
1212 AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),
1213 AD1848_DOUBLE("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1),
1214 AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1215 AD1848_DOUBLE("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1216 AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1217 AD1848_DOUBLE("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1218 AD1848_DOUBLE("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0),
1220 .name = "Capture Source",
1221 .type = AD1848_MIX_CAPTURE,
1223 AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0),
1224 AD1848_SINGLE("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0)
1227 int snd_ad1848_mixer(struct snd_ad1848 *chip)
1229 struct snd_card *card;
1230 struct snd_pcm *pcm;
1234 snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1239 strcpy(card->mixername, pcm->name);
1241 for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++)
1242 if ((err = snd_ad1848_add_ctl_elem(chip, &snd_ad1848_controls[idx])) < 0)
1248 EXPORT_SYMBOL(snd_ad1848_out);
1249 EXPORT_SYMBOL(snd_ad1848_create);
1250 EXPORT_SYMBOL(snd_ad1848_pcm);
1251 EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
1252 EXPORT_SYMBOL(snd_ad1848_mixer);
1253 EXPORT_SYMBOL(snd_ad1848_add_ctl);
1259 static int __init alsa_ad1848_init(void)
1264 static void __exit alsa_ad1848_exit(void)
1268 module_init(alsa_ad1848_init)
1269 module_exit(alsa_ad1848_exit)