2 * C-Media CMI8788 driver for Asus Xonar cards
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
7 * This driver is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License, version 2.
10 * This driver is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this driver; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 * SPI 0 -> 1st PCM1796 (front)
27 * SPI 1 -> 2nd PCM1796 (surround)
28 * SPI 2 -> 3rd PCM1796 (center/LFE)
29 * SPI 4 -> 4th PCM1796 (back)
31 * GPIO 2 -> M0 of CS5381
32 * GPIO 3 -> M1 of CS5381
33 * GPIO 5 <- external power present (D2X only)
35 * GPIO 8 -> enable output to speakers
44 * I²C <-> CS4398 (front)
45 * <-> CS4362A (surround, center/LFE, back)
47 * GPI 0 <- external power present
49 * GPIO 0 -> enable output to speakers
50 * GPIO 1 -> enable front panel I/O
51 * GPIO 2 -> M0 of CS5361
52 * GPIO 3 -> M1 of CS5361
53 * GPIO 8 -> route input jack to line-in (0) or mic-in (1)
65 #include <linux/pci.h>
66 #include <linux/delay.h>
67 #include <linux/mutex.h>
68 #include <sound/ac97_codec.h>
69 #include <sound/control.h>
70 #include <sound/core.h>
71 #include <sound/initval.h>
72 #include <sound/pcm.h>
73 #include <sound/tlv.h>
80 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
81 MODULE_DESCRIPTION("Asus AVx00 driver");
82 MODULE_LICENSE("GPL v2");
83 MODULE_SUPPORTED_DEVICE("{{Asus,AV100},{Asus,AV200}}");
85 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
86 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
87 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
89 module_param_array(index, int, NULL, 0444);
90 MODULE_PARM_DESC(index, "card index");
91 module_param_array(id, charp, NULL, 0444);
92 MODULE_PARM_DESC(id, "ID string");
93 module_param_array(enable, bool, NULL, 0444);
94 MODULE_PARM_DESC(enable, "enable card");
102 static struct pci_device_id xonar_ids[] __devinitdata = {
103 { OXYGEN_PCI_SUBID(0x1043, 0x8269), .driver_data = MODEL_D2 },
104 { OXYGEN_PCI_SUBID(0x1043, 0x8275), .driver_data = MODEL_DX },
105 { OXYGEN_PCI_SUBID(0x1043, 0x82b7), .driver_data = MODEL_D2X },
108 MODULE_DEVICE_TABLE(pci, xonar_ids);
111 #define GPIO_CS53x1_M_MASK 0x000c
112 #define GPIO_CS53x1_M_SINGLE 0x0000
113 #define GPIO_CS53x1_M_DOUBLE 0x0004
114 #define GPIO_CS53x1_M_QUAD 0x0008
116 #define GPIO_D2X_EXT_POWER 0x0020
117 #define GPIO_D2_ALT 0x0080
118 #define GPIO_D2_OUTPUT_ENABLE 0x0100
120 #define GPI_DX_EXT_POWER 0x01
121 #define GPIO_DX_OUTPUT_ENABLE 0x0001
122 #define GPIO_DX_FRONT_PANEL 0x0002
123 #define GPIO_DX_INPUT_ROUTE 0x0100
125 #define I2C_DEVICE_CS4398 0x9e /* 10011, AD1=1, AD0=1, /W=0 */
126 #define I2C_DEVICE_CS4362A 0x30 /* 001100, AD0=0, /W=0 */
129 unsigned int anti_pop_delay;
130 u16 output_enable_bit;
132 u8 ext_power_int_reg;
135 u8 pcm1796_oversampling;
140 static void pcm1796_write(struct oxygen *chip, unsigned int codec,
143 /* maps ALSA channel pair number to SPI output */
144 static const u8 codec_map[4] = {
147 oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
148 OXYGEN_SPI_DATA_LENGTH_2 |
149 OXYGEN_SPI_CLOCK_160 |
150 (codec_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
151 OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
155 static void cs4398_write(struct oxygen *chip, u8 reg, u8 value)
157 oxygen_write_i2c(chip, I2C_DEVICE_CS4398, reg, value);
160 static void cs4362a_write(struct oxygen *chip, u8 reg, u8 value)
162 oxygen_write_i2c(chip, I2C_DEVICE_CS4362A, reg, value);
165 static void xonar_enable_output(struct oxygen *chip)
167 struct xonar_data *data = chip->model_data;
169 msleep(data->anti_pop_delay);
170 oxygen_set_bits16(chip, OXYGEN_GPIO_DATA, data->output_enable_bit);
173 static void xonar_common_init(struct oxygen *chip)
175 struct xonar_data *data = chip->model_data;
177 if (data->ext_power_reg) {
178 oxygen_set_bits8(chip, data->ext_power_int_reg,
179 data->ext_power_bit);
180 chip->interrupt_mask |= OXYGEN_INT_GPIO;
181 data->has_power = !!(oxygen_read8(chip, data->ext_power_reg)
182 & data->ext_power_bit);
184 oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL,
185 GPIO_CS53x1_M_MASK | data->output_enable_bit);
186 oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
187 GPIO_CS53x1_M_SINGLE, GPIO_CS53x1_M_MASK);
188 oxygen_ac97_set_bits(chip, 0, CM9780_JACK, CM9780_FMIC2MIC);
189 xonar_enable_output(chip);
192 static void update_pcm1796_volume(struct oxygen *chip)
196 for (i = 0; i < 4; ++i) {
197 pcm1796_write(chip, i, 16, chip->dac_volume[i * 2]);
198 pcm1796_write(chip, i, 17, chip->dac_volume[i * 2 + 1]);
202 static void update_pcm1796_mute(struct oxygen *chip)
207 value = PCM1796_DMF_DISABLED | PCM1796_FMT_24_LJUST | PCM1796_ATLD;
209 value |= PCM1796_MUTE;
210 for (i = 0; i < 4; ++i)
211 pcm1796_write(chip, i, 18, value);
214 static void pcm1796_init(struct oxygen *chip)
216 struct xonar_data *data = chip->model_data;
219 for (i = 0; i < 4; ++i) {
220 pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1);
221 pcm1796_write(chip, i, 20, data->pcm1796_oversampling);
222 pcm1796_write(chip, i, 21, 0);
224 update_pcm1796_mute(chip); /* set ATLD before ATL/ATR */
225 update_pcm1796_volume(chip);
228 static void xonar_d2_init(struct oxygen *chip)
230 struct xonar_data *data = chip->model_data;
232 data->anti_pop_delay = 300;
233 data->output_enable_bit = GPIO_D2_OUTPUT_ENABLE;
234 data->pcm1796_oversampling = PCM1796_OS_64;
238 oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_D2_ALT);
239 oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_D2_ALT);
241 xonar_common_init(chip);
243 snd_component_add(chip->card, "PCM1796");
244 snd_component_add(chip->card, "CS5381");
247 static void xonar_d2x_init(struct oxygen *chip)
249 struct xonar_data *data = chip->model_data;
251 data->ext_power_reg = OXYGEN_GPIO_DATA;
252 data->ext_power_int_reg = OXYGEN_GPIO_INTERRUPT_MASK;
253 data->ext_power_bit = GPIO_D2X_EXT_POWER;
254 oxygen_clear_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_D2X_EXT_POWER);
258 static void update_cs4362a_volumes(struct oxygen *chip)
262 mute = chip->dac_mute ? CS4362A_MUTE : 0;
263 cs4362a_write(chip, 7, (127 - chip->dac_volume[2]) | mute);
264 cs4362a_write(chip, 8, (127 - chip->dac_volume[3]) | mute);
265 cs4362a_write(chip, 10, (127 - chip->dac_volume[4]) | mute);
266 cs4362a_write(chip, 11, (127 - chip->dac_volume[5]) | mute);
267 cs4362a_write(chip, 13, (127 - chip->dac_volume[6]) | mute);
268 cs4362a_write(chip, 14, (127 - chip->dac_volume[7]) | mute);
271 static void update_cs43xx_volume(struct oxygen *chip)
273 cs4398_write(chip, 5, (127 - chip->dac_volume[0]) * 2);
274 cs4398_write(chip, 6, (127 - chip->dac_volume[1]) * 2);
275 update_cs4362a_volumes(chip);
278 static void update_cs43xx_mute(struct oxygen *chip)
282 reg = CS4398_MUTEP_LOW | CS4398_PAMUTE;
284 reg |= CS4398_MUTE_B | CS4398_MUTE_A;
285 cs4398_write(chip, 4, reg);
286 update_cs4362a_volumes(chip);
289 static void cs43xx_init(struct oxygen *chip)
291 struct xonar_data *data = chip->model_data;
293 /* set CPEN (control port mode) and power down */
294 cs4398_write(chip, 8, CS4398_CPEN | CS4398_PDN);
295 cs4362a_write(chip, 0x01, CS4362A_PDN | CS4362A_CPEN);
297 cs4398_write(chip, 2, data->cs4398_fm);
298 cs4398_write(chip, 3, CS4398_ATAPI_B_R | CS4398_ATAPI_A_L);
299 cs4398_write(chip, 7, CS4398_RMP_DN | CS4398_RMP_UP |
300 CS4398_ZERO_CROSS | CS4398_SOFT_RAMP);
301 cs4362a_write(chip, 0x02, CS4362A_DIF_LJUST);
302 cs4362a_write(chip, 0x03, CS4362A_MUTEC_6 | CS4362A_AMUTE |
303 CS4362A_RMP_UP | CS4362A_ZERO_CROSS | CS4362A_SOFT_RAMP);
304 cs4362a_write(chip, 0x04, CS4362A_RMP_DN | CS4362A_DEM_NONE);
305 cs4362a_write(chip, 0x05, 0);
306 cs4362a_write(chip, 0x06, data->cs4362a_fm);
307 cs4362a_write(chip, 0x09, data->cs4362a_fm);
308 cs4362a_write(chip, 0x0c, data->cs4362a_fm);
309 update_cs43xx_volume(chip);
310 update_cs43xx_mute(chip);
311 /* clear power down */
312 cs4398_write(chip, 8, CS4398_CPEN);
313 cs4362a_write(chip, 0x01, CS4362A_CPEN);
316 static void xonar_dx_init(struct oxygen *chip)
318 struct xonar_data *data = chip->model_data;
320 data->anti_pop_delay = 800;
321 data->output_enable_bit = GPIO_DX_OUTPUT_ENABLE;
322 data->ext_power_reg = OXYGEN_GPI_DATA;
323 data->ext_power_int_reg = OXYGEN_GPI_INTERRUPT_MASK;
324 data->ext_power_bit = GPI_DX_EXT_POWER;
325 data->cs4398_fm = CS4398_FM_SINGLE | CS4398_DEM_NONE | CS4398_DIF_LJUST;
326 data->cs4362a_fm = CS4362A_FM_SINGLE |
327 CS4362A_ATAPI_B_R | CS4362A_ATAPI_A_L;
329 oxygen_write16(chip, OXYGEN_2WIRE_BUS_STATUS,
330 OXYGEN_2WIRE_LENGTH_8 |
331 OXYGEN_2WIRE_INTERRUPT_MASK |
332 OXYGEN_2WIRE_SPEED_FAST);
336 oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL,
337 GPIO_DX_FRONT_PANEL | GPIO_DX_INPUT_ROUTE);
338 oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA,
339 GPIO_DX_FRONT_PANEL | GPIO_DX_INPUT_ROUTE);
341 xonar_common_init(chip);
343 snd_component_add(chip->card, "CS4398");
344 snd_component_add(chip->card, "CS4362A");
345 snd_component_add(chip->card, "CS5361");
348 static void xonar_cleanup(struct oxygen *chip)
350 struct xonar_data *data = chip->model_data;
352 oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, data->output_enable_bit);
355 static void xonar_dx_cleanup(struct oxygen *chip)
358 cs4362a_write(chip, 0x01, CS4362A_PDN | CS4362A_CPEN);
359 oxygen_clear_bits8(chip, OXYGEN_FUNCTION, OXYGEN_FUNCTION_RESET_CODEC);
362 static void set_pcm1796_params(struct oxygen *chip,
363 struct snd_pcm_hw_params *params)
365 struct xonar_data *data = chip->model_data;
368 data->pcm1796_oversampling =
369 params_rate(params) >= 96000 ? PCM1796_OS_32 : PCM1796_OS_64;
370 for (i = 0; i < 4; ++i)
371 pcm1796_write(chip, i, 20, data->pcm1796_oversampling);
374 static void set_cs53x1_params(struct oxygen *chip,
375 struct snd_pcm_hw_params *params)
379 if (params_rate(params) <= 54000)
380 value = GPIO_CS53x1_M_SINGLE;
381 else if (params_rate(params) <= 108000)
382 value = GPIO_CS53x1_M_DOUBLE;
384 value = GPIO_CS53x1_M_QUAD;
385 oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
386 value, GPIO_CS53x1_M_MASK);
389 static void set_cs43xx_params(struct oxygen *chip,
390 struct snd_pcm_hw_params *params)
392 struct xonar_data *data = chip->model_data;
394 data->cs4398_fm = CS4398_DEM_NONE | CS4398_DIF_LJUST;
395 data->cs4362a_fm = CS4362A_ATAPI_B_R | CS4362A_ATAPI_A_L;
396 if (params_rate(params) <= 50000) {
397 data->cs4398_fm |= CS4398_FM_SINGLE;
398 data->cs4362a_fm |= CS4362A_FM_SINGLE;
399 } else if (params_rate(params) <= 100000) {
400 data->cs4398_fm |= CS4398_FM_DOUBLE;
401 data->cs4362a_fm |= CS4362A_FM_DOUBLE;
403 data->cs4398_fm |= CS4398_FM_QUAD;
404 data->cs4362a_fm |= CS4362A_FM_QUAD;
406 cs4398_write(chip, 2, data->cs4398_fm);
407 cs4362a_write(chip, 0x06, data->cs4362a_fm);
408 cs4362a_write(chip, 0x09, data->cs4362a_fm);
409 cs4362a_write(chip, 0x0c, data->cs4362a_fm);
412 static void xonar_gpio_changed(struct oxygen *chip)
414 struct xonar_data *data = chip->model_data;
417 has_power = !!(oxygen_read8(chip, data->ext_power_reg)
418 & data->ext_power_bit);
419 if (has_power != data->has_power) {
420 data->has_power = has_power;
422 snd_printk(KERN_NOTICE "power restored\n");
425 "Hey! Don't unplug the power cable!\n");
426 /* TODO: stop PCMs */
431 static int alt_switch_get(struct snd_kcontrol *ctl,
432 struct snd_ctl_elem_value *value)
434 struct oxygen *chip = ctl->private_data;
436 value->value.integer.value[0] =
437 !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) & GPIO_D2_ALT);
441 static int alt_switch_put(struct snd_kcontrol *ctl,
442 struct snd_ctl_elem_value *value)
444 struct oxygen *chip = ctl->private_data;
445 u16 old_bits, new_bits;
448 spin_lock_irq(&chip->reg_lock);
449 old_bits = oxygen_read16(chip, OXYGEN_GPIO_DATA);
450 if (value->value.integer.value[0])
451 new_bits = old_bits | GPIO_D2_ALT;
453 new_bits = old_bits & ~GPIO_D2_ALT;
454 changed = new_bits != old_bits;
456 oxygen_write16(chip, OXYGEN_GPIO_DATA, new_bits);
457 spin_unlock_irq(&chip->reg_lock);
461 static const struct snd_kcontrol_new alt_switch = {
462 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
463 .name = "Analog Loopback Switch",
464 .info = snd_ctl_boolean_mono_info,
465 .get = alt_switch_get,
466 .put = alt_switch_put,
469 static int front_panel_get(struct snd_kcontrol *ctl,
470 struct snd_ctl_elem_value *value)
472 struct oxygen *chip = ctl->private_data;
474 value->value.integer.value[0] =
475 !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) & GPIO_DX_FRONT_PANEL);
479 static int front_panel_put(struct snd_kcontrol *ctl,
480 struct snd_ctl_elem_value *value)
482 struct oxygen *chip = ctl->private_data;
483 u16 old_reg, new_reg;
485 spin_lock_irq(&chip->reg_lock);
486 old_reg = oxygen_read16(chip, OXYGEN_GPIO_DATA);
487 if (value->value.integer.value[0])
488 new_reg = old_reg | GPIO_DX_FRONT_PANEL;
490 new_reg = old_reg & ~GPIO_DX_FRONT_PANEL;
491 oxygen_write16(chip, OXYGEN_GPIO_DATA, new_reg);
492 spin_unlock_irq(&chip->reg_lock);
493 return old_reg != new_reg;
496 static const struct snd_kcontrol_new front_panel_switch = {
497 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
498 .name = "Front Panel Switch",
499 .info = snd_ctl_boolean_mono_info,
500 .get = front_panel_get,
501 .put = front_panel_put,
504 static void xonar_dx_ac97_switch(struct oxygen *chip,
505 unsigned int reg, unsigned int mute)
507 if (reg == AC97_LINE) {
508 spin_lock_irq(&chip->reg_lock);
509 oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
510 mute ? GPIO_DX_INPUT_ROUTE : 0,
511 GPIO_DX_INPUT_ROUTE);
512 spin_unlock_irq(&chip->reg_lock);
516 static const DECLARE_TLV_DB_SCALE(pcm1796_db_scale, -12000, 50, 0);
517 static const DECLARE_TLV_DB_SCALE(cs4362a_db_scale, -12700, 100, 0);
519 static int xonar_d2_control_filter(struct snd_kcontrol_new *template)
521 if (!strncmp(template->name, "CD Capture ", 11))
522 /* CD in is actually connected to the video in pin */
523 template->private_value ^= AC97_CD ^ AC97_VIDEO;
527 static int xonar_dx_control_filter(struct snd_kcontrol_new *template)
529 if (!strncmp(template->name, "CD Capture ", 11))
530 return 1; /* no CD input */
534 static int xonar_mixer_init(struct oxygen *chip)
536 return snd_ctl_add(chip->card, snd_ctl_new1(&alt_switch, chip));
539 static int xonar_dx_mixer_init(struct oxygen *chip)
541 return snd_ctl_add(chip->card, snd_ctl_new1(&front_panel_switch, chip));
544 static const struct oxygen_model xonar_models[] = {
546 .shortname = "Xonar D2",
547 .longname = "Asus Virtuoso 200",
549 .owner = THIS_MODULE,
550 .init = xonar_d2_init,
551 .control_filter = xonar_d2_control_filter,
552 .mixer_init = xonar_mixer_init,
553 .cleanup = xonar_cleanup,
554 .set_dac_params = set_pcm1796_params,
555 .set_adc_params = set_cs53x1_params,
556 .update_dac_volume = update_pcm1796_volume,
557 .update_dac_mute = update_pcm1796_mute,
558 .dac_tlv = pcm1796_db_scale,
559 .model_data_size = sizeof(struct xonar_data),
560 .pcm_dev_cfg = PLAYBACK_0_TO_I2S |
561 PLAYBACK_1_TO_SPDIF |
562 CAPTURE_0_FROM_I2S_2 |
563 CAPTURE_1_FROM_SPDIF,
565 .dac_volume_min = 0x0f,
566 .dac_volume_max = 0xff,
567 .misc_flags = OXYGEN_MISC_MIDI,
568 .function_flags = OXYGEN_FUNCTION_SPI |
569 OXYGEN_FUNCTION_ENABLE_SPI_4_5,
570 .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
571 .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
574 .shortname = "Xonar D2X",
575 .longname = "Asus Virtuoso 200",
577 .owner = THIS_MODULE,
578 .init = xonar_d2x_init,
579 .control_filter = xonar_d2_control_filter,
580 .mixer_init = xonar_mixer_init,
581 .cleanup = xonar_cleanup,
582 .set_dac_params = set_pcm1796_params,
583 .set_adc_params = set_cs53x1_params,
584 .update_dac_volume = update_pcm1796_volume,
585 .update_dac_mute = update_pcm1796_mute,
586 .gpio_changed = xonar_gpio_changed,
587 .dac_tlv = pcm1796_db_scale,
588 .model_data_size = sizeof(struct xonar_data),
589 .pcm_dev_cfg = PLAYBACK_0_TO_I2S |
590 PLAYBACK_1_TO_SPDIF |
591 CAPTURE_0_FROM_I2S_2 |
592 CAPTURE_1_FROM_SPDIF,
594 .dac_volume_min = 0x0f,
595 .dac_volume_max = 0xff,
596 .misc_flags = OXYGEN_MISC_MIDI,
597 .function_flags = OXYGEN_FUNCTION_SPI |
598 OXYGEN_FUNCTION_ENABLE_SPI_4_5,
599 .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
600 .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
603 .shortname = "Xonar DX",
604 .longname = "Asus Virtuoso 100",
606 .owner = THIS_MODULE,
607 .init = xonar_dx_init,
608 .control_filter = xonar_dx_control_filter,
609 .mixer_init = xonar_dx_mixer_init,
610 .cleanup = xonar_dx_cleanup,
611 .set_dac_params = set_cs43xx_params,
612 .set_adc_params = set_cs53x1_params,
613 .update_dac_volume = update_cs43xx_volume,
614 .update_dac_mute = update_cs43xx_mute,
615 .gpio_changed = xonar_gpio_changed,
616 .ac97_switch = xonar_dx_ac97_switch,
617 .dac_tlv = cs4362a_db_scale,
618 .model_data_size = sizeof(struct xonar_data),
619 .pcm_dev_cfg = PLAYBACK_0_TO_I2S |
620 PLAYBACK_1_TO_SPDIF |
621 CAPTURE_0_FROM_I2S_2,
624 .dac_volume_max = 127,
625 .function_flags = OXYGEN_FUNCTION_2WIRE,
626 .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
627 .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
631 static int __devinit xonar_probe(struct pci_dev *pci,
632 const struct pci_device_id *pci_id)
637 if (dev >= SNDRV_CARDS)
643 err = oxygen_pci_probe(pci, index[dev], id[dev],
644 &xonar_models[pci_id->driver_data]);
650 static struct pci_driver xonar_driver = {
652 .id_table = xonar_ids,
653 .probe = xonar_probe,
654 .remove = __devexit_p(oxygen_pci_remove),
657 static int __init alsa_card_xonar_init(void)
659 return pci_register_driver(&xonar_driver);
662 static void __exit alsa_card_xonar_exit(void)
664 pci_unregister_driver(&xonar_driver);
667 module_init(alsa_card_xonar_init)
668 module_exit(alsa_card_xonar_exit)