88fbf285d2b74ea6cf1ccc701398d0e730784840
[linux-2.6.git] / sound / pci / ca0106 / ca0106_main.c
1 /*
2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
4  *  Version: 0.0.25
5  *
6  *  FEATURES currently supported:
7  *    Front, Rear and Center/LFE.
8  *    Surround40 and Surround51.
9  *    Capture from MIC an LINE IN input.
10  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
11  *    (One can use a standard mono mini-jack to one RCA plugs cable.
12  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
13  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
14  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
15  *    Notes on how to capture sound:
16  *      The AC97 is used in the PLAYBACK direction.
17  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
18  *      So, to record from the MIC, set the MIC Playback volume to max,
19  *      unmute the MIC and turn up the MASTER Playback volume.
20  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
21  *   
22  *    The only playback controls that currently do anything are: -
23  *    Analog Front
24  *    Analog Rear
25  *    Analog Center/LFE
26  *    SPDIF Front
27  *    SPDIF Rear
28  *    SPDIF Center/LFE
29  *   
30  *    For capture from Mic in or Line in.
31  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
32  * 
33  *    CAPTURE feedback into PLAYBACK
34  * 
35  *  Changelog:
36  *    Support interrupts per period.
37  *    Removed noise from Center/LFE channel when in Analog mode.
38  *    Rename and remove mixer controls.
39  *  0.0.6
40  *    Use separate card based DMA buffer for periods table list.
41  *  0.0.7
42  *    Change remove and rename ctrls into lists.
43  *  0.0.8
44  *    Try to fix capture sources.
45  *  0.0.9
46  *    Fix AC3 output.
47  *    Enable S32_LE format support.
48  *  0.0.10
49  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
50  *  0.0.11
51  *    Add Model name recognition.
52  *  0.0.12
53  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
54  *    Remove redundent "voice" handling.
55  *  0.0.13
56  *    Single trigger call for multi channels.
57  *  0.0.14
58  *    Set limits based on what the sound card hardware can do.
59  *    playback periods_min=2, periods_max=8
60  *    capture hw constraints require period_size = n * 64 bytes.
61  *    playback hw constraints require period_size = n * 64 bytes.
62  *  0.0.15
63  *    Minor updates.
64  *  0.0.16
65  *    Implement 192000 sample rate.
66  *  0.0.17
67  *    Add support for SB0410 and SB0413.
68  *  0.0.18
69  *    Modified Copyright message.
70  *  0.0.19
71  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
72  *    The output codec needs resetting, otherwise all output is muted.
73  *  0.0.20
74  *    Merge "pci_disable_device(pci);" fixes.
75  *  0.0.21
76  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
77  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
78  *  0.0.22
79  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
80  *  0.0.23
81  *    Implement support for Line-in capture on SB Live 24bit.
82  *  0.0.24
83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
84  *  0.0.25
85  *    Powerdown SPI DAC channels when not in use
86  *
87  *  BUGS:
88  *    Some stability problems when unloading the snd-ca0106 kernel module.
89  *    --
90  *
91  *  TODO:
92  *    4 Capture channels, only one implemented so far.
93  *    Other capture rates apart from 48khz not implemented.
94  *    MIDI
95  *    --
96  *  GENERAL INFO:
97  *    Model: SB0310
98  *    P17 Chip: CA0106-DAT
99  *    AC97 Codec: STAC 9721
100  *    ADC: Philips 1361T (Stereo 24bit)
101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
102  *
103  *  GENERAL INFO:
104  *    Model: SB0410
105  *    P17 Chip: CA0106-DAT
106  *    AC97 Codec: None
107  *    ADC: WM8775EDS (4 Channel)
108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
109  *    SPDIF Out control switches between Mic in and SPDIF out.
110  *    No sound out or mic input working yet.
111  * 
112  *  GENERAL INFO:
113  *    Model: SB0413
114  *    P17 Chip: CA0106-DAT
115  *    AC97 Codec: None.
116  *    ADC: Unknown
117  *    DAC: Unknown
118  *    Trying to handle it like the SB0410.
119  *
120  *  This code was initally based on code from ALSA's emu10k1x.c which is:
121  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
122  *
123  *   This program is free software; you can redistribute it and/or modify
124  *   it under the terms of the GNU General Public License as published by
125  *   the Free Software Foundation; either version 2 of the License, or
126  *   (at your option) any later version.
127  *
128  *   This program is distributed in the hope that it will be useful,
129  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
130  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
131  *   GNU General Public License for more details.
132  *
133  *   You should have received a copy of the GNU General Public License
134  *   along with this program; if not, write to the Free Software
135  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
136  *
137  */
138 #include <linux/delay.h>
139 #include <linux/init.h>
140 #include <linux/interrupt.h>
141 #include <linux/pci.h>
142 #include <linux/slab.h>
143 #include <linux/moduleparam.h>
144 #include <linux/dma-mapping.h>
145 #include <sound/core.h>
146 #include <sound/initval.h>
147 #include <sound/pcm.h>
148 #include <sound/ac97_codec.h>
149 #include <sound/info.h>
150
151 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
152 MODULE_DESCRIPTION("CA0106");
153 MODULE_LICENSE("GPL");
154 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
155
156 // module parameters (see "Module Parameters")
157 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
158 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
159 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
160 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
161
162 module_param_array(index, int, NULL, 0444);
163 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
164 module_param_array(id, charp, NULL, 0444);
165 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
166 module_param_array(enable, bool, NULL, 0444);
167 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
168 module_param_array(subsystem, uint, NULL, 0444);
169 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
170
171 #include "ca0106.h"
172
173 static struct snd_ca0106_details ca0106_chip_details[] = {
174          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
175          /* It is really just a normal SB Live 24bit. */
176          /* Tested:
177           * See ALSA bug#3251
178           */
179          { .serial = 0x10131102,
180            .name   = "X-Fi Extreme Audio [SBxxxx]",
181            .gpio_type = 1,
182            .i2c_adc = 1 } ,
183          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
184          /* It is really just a normal SB Live 24bit. */
185          /*
186           * CTRL:CA0111-WTLF
187           * ADC: WM8775SEDS
188           * DAC: CS4382-KQZ
189           */
190          /* Tested:
191           * Playback on front, rear, center/lfe speakers
192           * Capture from Mic in.
193           * Not-Tested:
194           * Capture from Line in.
195           * Playback to digital out.
196           */
197          { .serial = 0x10121102,
198            .name   = "X-Fi Extreme Audio [SB0790]",
199            .gpio_type = 1,
200            .i2c_adc = 1 } ,
201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
202          /* AudigyLS[SB0310] */
203          { .serial = 0x10021102,
204            .name   = "AudigyLS [SB0310]",
205            .ac97   = 1 } , 
206          /* Unknown AudigyLS that also says SB0310 on it */
207          { .serial = 0x10051102,
208            .name   = "AudigyLS [SB0310b]",
209            .ac97   = 1 } ,
210          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
211          { .serial = 0x10061102,
212            .name   = "Live! 7.1 24bit [SB0410]",
213            .gpio_type = 1,
214            .i2c_adc = 1 } ,
215          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
216          { .serial = 0x10071102,
217            .name   = "Live! 7.1 24bit [SB0413]",
218            .gpio_type = 1,
219            .i2c_adc = 1 } ,
220          /* New Audigy SE. Has a different DAC. */
221          /* SB0570:
222           * CTRL:CA0106-DAT
223           * ADC: WM8775EDS
224           * DAC: WM8768GEDS
225           */
226          { .serial = 0x100a1102,
227            .name   = "Audigy SE [SB0570]",
228            .gpio_type = 1,
229            .i2c_adc = 1,
230            .spi_dac = 1 } ,
231          /* New Audigy LS. Has a different DAC. */
232          /* SB0570:
233           * CTRL:CA0106-DAT
234           * ADC: WM8775EDS
235           * DAC: WM8768GEDS
236           */
237          { .serial = 0x10111102,
238            .name   = "Audigy SE OEM [SB0570a]",
239            .gpio_type = 1,
240            .i2c_adc = 1,
241            .spi_dac = 1 } ,
242          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
243          /* SB0438
244           * CTRL:CA0106-DAT
245           * ADC: WM8775SEDS
246           * DAC: CS4382-KQZ
247           */
248          { .serial = 0x10091462,
249            .name   = "MSI K8N Diamond MB [SB0438]",
250            .gpio_type = 2,
251            .i2c_adc = 1 } ,
252          /* MSI K8N Diamond PLUS MB */
253          { .serial = 0x10091102,
254            .name   = "MSI K8N Diamond MB",
255            .gpio_type = 2,
256            .i2c_adc = 1,
257            .spi_dac = 2 } ,
258          /* Shuttle XPC SD31P which has an onboard Creative Labs
259           * Sound Blaster Live! 24-bit EAX
260           * high-definition 7.1 audio processor".
261           * Added using info from andrewvegan in alsa bug #1298
262           */
263          { .serial = 0x30381297,
264            .name   = "Shuttle XPC SD31P [SD31P]",
265            .gpio_type = 1,
266            .i2c_adc = 1 } ,
267         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
268          * Sound Blaster Live! 24-bit EAX
269          * high-definition 7.1 audio processor".
270          * Fixes ALSA bug#1600
271          */
272         { .serial = 0x30411297,
273           .name = "Shuttle XPC SD11G5 [SD11G5]",
274           .gpio_type = 1,
275           .i2c_adc = 1 } ,
276          { .serial = 0,
277            .name   = "AudigyLS [Unknown]" }
278 };
279
280 /* hardware definition */
281 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
282         .info =                 SNDRV_PCM_INFO_MMAP | 
283                                 SNDRV_PCM_INFO_INTERLEAVED |
284                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
285                                 SNDRV_PCM_INFO_MMAP_VALID |
286                                 SNDRV_PCM_INFO_SYNC_START,
287         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
288         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
289                                  SNDRV_PCM_RATE_192000),
290         .rate_min =             48000,
291         .rate_max =             192000,
292         .channels_min =         2,  //1,
293         .channels_max =         2,  //6,
294         .buffer_bytes_max =     ((65536 - 64) * 8),
295         .period_bytes_min =     64,
296         .period_bytes_max =     (65536 - 64),
297         .periods_min =          2,
298         .periods_max =          8,
299         .fifo_size =            0,
300 };
301
302 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
303         .info =                 (SNDRV_PCM_INFO_MMAP | 
304                                  SNDRV_PCM_INFO_INTERLEAVED |
305                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
306                                  SNDRV_PCM_INFO_MMAP_VALID),
307         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
308         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
309                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
310         .rate_min =             44100,
311         .rate_max =             192000,
312         .channels_min =         2,
313         .channels_max =         2,
314         .buffer_bytes_max =     ((65536 - 64) * 8),
315         .period_bytes_min =     64,
316         .period_bytes_max =     (65536 - 64),
317         .periods_min =          2,
318         .periods_max =          2,
319         .fifo_size =            0,
320 };
321
322 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu, 
323                                           unsigned int reg, 
324                                           unsigned int chn)
325 {
326         unsigned long flags;
327         unsigned int regptr, val;
328   
329         regptr = (reg << 16) | chn;
330
331         spin_lock_irqsave(&emu->emu_lock, flags);
332         outl(regptr, emu->port + PTR);
333         val = inl(emu->port + DATA);
334         spin_unlock_irqrestore(&emu->emu_lock, flags);
335         return val;
336 }
337
338 void snd_ca0106_ptr_write(struct snd_ca0106 *emu, 
339                                    unsigned int reg, 
340                                    unsigned int chn, 
341                                    unsigned int data)
342 {
343         unsigned int regptr;
344         unsigned long flags;
345
346         regptr = (reg << 16) | chn;
347
348         spin_lock_irqsave(&emu->emu_lock, flags);
349         outl(regptr, emu->port + PTR);
350         outl(data, emu->port + DATA);
351         spin_unlock_irqrestore(&emu->emu_lock, flags);
352 }
353
354 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
355                                    unsigned int data)
356 {
357         unsigned int reset, set;
358         unsigned int reg, tmp;
359         int n, result;
360         reg = SPI;
361         if (data > 0xffff) /* Only 16bit values allowed */
362                 return 1;
363         tmp = snd_ca0106_ptr_read(emu, reg, 0);
364         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
365         set = reset | 0x10000; /* Set xxx1xxxx */
366         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
367         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
368         snd_ca0106_ptr_write(emu, reg, 0, set | data);
369         result = 1;
370         /* Wait for status bit to return to 0 */
371         for (n = 0; n < 100; n++) {
372                 udelay(10);
373                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
374                 if (!(tmp & 0x10000)) {
375                         result = 0;
376                         break;
377                 }
378         }
379         if (result) /* Timed out */
380                 return 1;
381         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
382         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
383         return 0;
384 }
385
386 /* The ADC does not support i2c read, so only write is implemented */
387 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
388                                 u32 reg,
389                                 u32 value)
390 {
391         u32 tmp;
392         int timeout = 0;
393         int status;
394         int retry;
395         if ((reg > 0x7f) || (value > 0x1ff)) {
396                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
397                 return -EINVAL;
398         }
399
400         tmp = reg << 25 | value << 16;
401         // snd_printk("I2C-write:reg=0x%x, value=0x%x\n", reg, value);
402         /* Not sure what this I2C channel controls. */
403         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
404
405         /* This controls the I2C connected to the WM8775 ADC Codec */
406         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
407
408         for (retry = 0; retry < 10; retry++) {
409                 /* Send the data to i2c */
410                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
411                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
412                 tmp = 0;
413                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
414                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
415
416                 /* Wait till the transaction ends */
417                 while (1) {
418                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
419                         //snd_printk("I2C:status=0x%x\n", status);
420                         timeout++;
421                         if ((status & I2C_A_ADC_START) == 0)
422                                 break;
423
424                         if (timeout > 1000)
425                                 break;
426                 }
427                 //Read back and see if the transaction is successful
428                 if ((status & I2C_A_ADC_ABORT) == 0)
429                         break;
430         }
431
432         if (retry == 10) {
433                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
434                 return -EINVAL;
435         }
436     
437         return 0;
438 }
439
440
441 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
442 {
443         unsigned long flags;
444         unsigned int intr_enable;
445
446         spin_lock_irqsave(&emu->emu_lock, flags);
447         intr_enable = inl(emu->port + INTE) | intrenb;
448         outl(intr_enable, emu->port + INTE);
449         spin_unlock_irqrestore(&emu->emu_lock, flags);
450 }
451
452 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
453 {
454         unsigned long flags;
455         unsigned int intr_enable;
456
457         spin_lock_irqsave(&emu->emu_lock, flags);
458         intr_enable = inl(emu->port + INTE) & ~intrenb;
459         outl(intr_enable, emu->port + INTE);
460         spin_unlock_irqrestore(&emu->emu_lock, flags);
461 }
462
463
464 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
465 {
466         kfree(runtime->private_data);
467 }
468
469 static const int spi_dacd_reg[] = {
470         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
471         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
472         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
473         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
474 };
475 static const int spi_dacd_bit[] = {
476         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
477         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
478         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
479         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
480 };
481
482 /* open_playback callback */
483 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
484                                                 int channel_id)
485 {
486         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
487         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
488         struct snd_ca0106_pcm *epcm;
489         struct snd_pcm_runtime *runtime = substream->runtime;
490         int err;
491
492         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
493
494         if (epcm == NULL)
495                 return -ENOMEM;
496         epcm->emu = chip;
497         epcm->substream = substream;
498         epcm->channel_id=channel_id;
499   
500         runtime->private_data = epcm;
501         runtime->private_free = snd_ca0106_pcm_free_substream;
502   
503         runtime->hw = snd_ca0106_playback_hw;
504
505         channel->emu = chip;
506         channel->number = channel_id;
507
508         channel->use = 1;
509         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
510         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
511         channel->epcm = epcm;
512         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
513                 return err;
514         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
515                 return err;
516         snd_pcm_set_sync(substream);
517
518         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
519                 const int reg = spi_dacd_reg[channel_id];
520
521                 /* Power up dac */
522                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
523                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
524                 if (err < 0)
525                         return err;
526         }
527         return 0;
528 }
529
530 /* close callback */
531 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
532 {
533         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
534         struct snd_pcm_runtime *runtime = substream->runtime;
535         struct snd_ca0106_pcm *epcm = runtime->private_data;
536         chip->playback_channels[epcm->channel_id].use = 0;
537
538         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
539                 const int reg = spi_dacd_reg[epcm->channel_id];
540
541                 /* Power down DAC */
542                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
543                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
544         }
545         /* FIXME: maybe zero others */
546         return 0;
547 }
548
549 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
550 {
551         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
552 }
553
554 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
555 {
556         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
557 }
558
559 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
560 {
561         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
562 }
563
564 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
565 {
566         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
567 }
568
569 /* open_capture callback */
570 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
571                                                int channel_id)
572 {
573         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
574         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
575         struct snd_ca0106_pcm *epcm;
576         struct snd_pcm_runtime *runtime = substream->runtime;
577         int err;
578
579         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
580         if (epcm == NULL) {
581                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
582                 return -ENOMEM;
583         }
584         epcm->emu = chip;
585         epcm->substream = substream;
586         epcm->channel_id=channel_id;
587   
588         runtime->private_data = epcm;
589         runtime->private_free = snd_ca0106_pcm_free_substream;
590   
591         runtime->hw = snd_ca0106_capture_hw;
592
593         channel->emu = chip;
594         channel->number = channel_id;
595
596         channel->use = 1;
597         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
598         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
599         channel->epcm = epcm;
600         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
601                 return err;
602         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
603         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
604                 return err;
605         return 0;
606 }
607
608 /* close callback */
609 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
610 {
611         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
612         struct snd_pcm_runtime *runtime = substream->runtime;
613         struct snd_ca0106_pcm *epcm = runtime->private_data;
614         chip->capture_channels[epcm->channel_id].use = 0;
615         /* FIXME: maybe zero others */
616         return 0;
617 }
618
619 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
620 {
621         return snd_ca0106_pcm_open_capture_channel(substream, 0);
622 }
623
624 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
625 {
626         return snd_ca0106_pcm_open_capture_channel(substream, 1);
627 }
628
629 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
630 {
631         return snd_ca0106_pcm_open_capture_channel(substream, 2);
632 }
633
634 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
635 {
636         return snd_ca0106_pcm_open_capture_channel(substream, 3);
637 }
638
639 /* hw_params callback */
640 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
641                                       struct snd_pcm_hw_params *hw_params)
642 {
643         return snd_pcm_lib_malloc_pages(substream,
644                                         params_buffer_bytes(hw_params));
645 }
646
647 /* hw_free callback */
648 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
649 {
650         return snd_pcm_lib_free_pages(substream);
651 }
652
653 /* hw_params callback */
654 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
655                                       struct snd_pcm_hw_params *hw_params)
656 {
657         return snd_pcm_lib_malloc_pages(substream,
658                                         params_buffer_bytes(hw_params));
659 }
660
661 /* hw_free callback */
662 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
663 {
664         return snd_pcm_lib_free_pages(substream);
665 }
666
667 /* prepare playback callback */
668 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
669 {
670         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
671         struct snd_pcm_runtime *runtime = substream->runtime;
672         struct snd_ca0106_pcm *epcm = runtime->private_data;
673         int channel = epcm->channel_id;
674         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
675         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
676         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
677         u32 hcfg_set = 0x00000000;
678         u32 hcfg;
679         u32 reg40_mask = 0x30000 << (channel<<1);
680         u32 reg40_set = 0;
681         u32 reg40;
682         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
683         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
684         u32 reg71_set = 0;
685         u32 reg71;
686         int i;
687         
688         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
689         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
690         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
691         /* Rate can be set per channel. */
692         /* reg40 control host to fifo */
693         /* reg71 controls DAC rate. */
694         switch (runtime->rate) {
695         case 44100:
696                 reg40_set = 0x10000 << (channel<<1);
697                 reg71_set = 0x01010000; 
698                 break;
699         case 48000:
700                 reg40_set = 0;
701                 reg71_set = 0; 
702                 break;
703         case 96000:
704                 reg40_set = 0x20000 << (channel<<1);
705                 reg71_set = 0x02020000; 
706                 break;
707         case 192000:
708                 reg40_set = 0x30000 << (channel<<1);
709                 reg71_set = 0x03030000; 
710                 break;
711         default:
712                 reg40_set = 0;
713                 reg71_set = 0; 
714                 break;
715         }
716         /* Format is a global setting */
717         /* FIXME: Only let the first channel accessed set this. */
718         switch (runtime->format) {
719         case SNDRV_PCM_FORMAT_S16_LE:
720                 hcfg_set = 0;
721                 break;
722         case SNDRV_PCM_FORMAT_S32_LE:
723                 hcfg_set = HCFG_PLAYBACK_S32_LE;
724                 break;
725         default:
726                 hcfg_set = 0;
727                 break;
728         }
729         hcfg = inl(emu->port + HCFG) ;
730         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
731         outl(hcfg, emu->port + HCFG);
732         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
733         reg40 = (reg40 & ~reg40_mask) | reg40_set;
734         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
735         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
736         reg71 = (reg71 & ~reg71_mask) | reg71_set;
737         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
738
739         /* FIXME: Check emu->buffer.size before actually writing to it. */
740         for(i=0; i < runtime->periods; i++) {
741                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
742                 table_base[i*2+1] = period_size_bytes << 16;
743         }
744  
745         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
746         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
747         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
748         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
749         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
750         /* FIXME  test what 0 bytes does. */
751         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
752         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
753         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
754         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
755         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
756 #if 0
757         snd_ca0106_ptr_write(emu, SPCS0, 0,
758                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
759                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
760                                SPCS_GENERATIONSTATUS | 0x00001200 |
761                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
762 #endif
763
764         return 0;
765 }
766
767 /* prepare capture callback */
768 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
769 {
770         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
771         struct snd_pcm_runtime *runtime = substream->runtime;
772         struct snd_ca0106_pcm *epcm = runtime->private_data;
773         int channel = epcm->channel_id;
774         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
775         u32 hcfg_set = 0x00000000;
776         u32 hcfg;
777         u32 over_sampling=0x2;
778         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
779         u32 reg71_set = 0;
780         u32 reg71;
781         
782         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
783         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
784         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
785         /* reg71 controls ADC rate. */
786         switch (runtime->rate) {
787         case 44100:
788                 reg71_set = 0x00004000;
789                 break;
790         case 48000:
791                 reg71_set = 0; 
792                 break;
793         case 96000:
794                 reg71_set = 0x00008000;
795                 over_sampling=0xa;
796                 break;
797         case 192000:
798                 reg71_set = 0x0000c000; 
799                 over_sampling=0xa;
800                 break;
801         default:
802                 reg71_set = 0; 
803                 break;
804         }
805         /* Format is a global setting */
806         /* FIXME: Only let the first channel accessed set this. */
807         switch (runtime->format) {
808         case SNDRV_PCM_FORMAT_S16_LE:
809                 hcfg_set = 0;
810                 break;
811         case SNDRV_PCM_FORMAT_S32_LE:
812                 hcfg_set = HCFG_CAPTURE_S32_LE;
813                 break;
814         default:
815                 hcfg_set = 0;
816                 break;
817         }
818         hcfg = inl(emu->port + HCFG) ;
819         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
820         outl(hcfg, emu->port + HCFG);
821         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
822         reg71 = (reg71 & ~reg71_mask) | reg71_set;
823         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
824         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
825                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
826         }
827
828
829         //printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size,  frames_to_bytes(runtime, 1));
830         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
831         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
832         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
833         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
834
835         return 0;
836 }
837
838 /* trigger_playback callback */
839 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
840                                     int cmd)
841 {
842         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
843         struct snd_pcm_runtime *runtime;
844         struct snd_ca0106_pcm *epcm;
845         int channel;
846         int result = 0;
847         struct snd_pcm_substream *s;
848         u32 basic = 0;
849         u32 extended = 0;
850         int running=0;
851
852         switch (cmd) {
853         case SNDRV_PCM_TRIGGER_START:
854                 running=1;
855                 break;
856         case SNDRV_PCM_TRIGGER_STOP:
857         default:
858                 running=0;
859                 break;
860         }
861         snd_pcm_group_for_each_entry(s, substream) {
862                 if (snd_pcm_substream_chip(s) != emu ||
863                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
864                         continue;
865                 runtime = s->runtime;
866                 epcm = runtime->private_data;
867                 channel = epcm->channel_id;
868                 //snd_printk("channel=%d\n",channel);
869                 epcm->running = running;
870                 basic |= (0x1<<channel);
871                 extended |= (0x10<<channel);
872                 snd_pcm_trigger_done(s, substream);
873         }
874         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
875
876         switch (cmd) {
877         case SNDRV_PCM_TRIGGER_START:
878                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
879                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
880                 break;
881         case SNDRV_PCM_TRIGGER_STOP:
882                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
883                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
884                 break;
885         default:
886                 result = -EINVAL;
887                 break;
888         }
889         return result;
890 }
891
892 /* trigger_capture callback */
893 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
894                                     int cmd)
895 {
896         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
897         struct snd_pcm_runtime *runtime = substream->runtime;
898         struct snd_ca0106_pcm *epcm = runtime->private_data;
899         int channel = epcm->channel_id;
900         int result = 0;
901
902         switch (cmd) {
903         case SNDRV_PCM_TRIGGER_START:
904                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
905                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
906                 epcm->running = 1;
907                 break;
908         case SNDRV_PCM_TRIGGER_STOP:
909                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
910                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
911                 epcm->running = 0;
912                 break;
913         default:
914                 result = -EINVAL;
915                 break;
916         }
917         return result;
918 }
919
920 /* pointer_playback callback */
921 static snd_pcm_uframes_t
922 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
923 {
924         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
925         struct snd_pcm_runtime *runtime = substream->runtime;
926         struct snd_ca0106_pcm *epcm = runtime->private_data;
927         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
928         int channel = epcm->channel_id;
929
930         if (!epcm->running)
931                 return 0;
932
933         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
934         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
935         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
936         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
937         ptr2 = bytes_to_frames(runtime, ptr1);
938         ptr2+= (ptr4 >> 3) * runtime->period_size;
939         ptr=ptr2;
940         if (ptr >= runtime->buffer_size)
941                 ptr -= runtime->buffer_size;
942         //printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
943
944         return ptr;
945 }
946
947 /* pointer_capture callback */
948 static snd_pcm_uframes_t
949 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
950 {
951         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
952         struct snd_pcm_runtime *runtime = substream->runtime;
953         struct snd_ca0106_pcm *epcm = runtime->private_data;
954         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
955         int channel = channel=epcm->channel_id;
956
957         if (!epcm->running)
958                 return 0;
959
960         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
961         ptr2 = bytes_to_frames(runtime, ptr1);
962         ptr=ptr2;
963         if (ptr >= runtime->buffer_size)
964                 ptr -= runtime->buffer_size;
965         //printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
966
967         return ptr;
968 }
969
970 /* operators */
971 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
972         .open =        snd_ca0106_pcm_open_playback_front,
973         .close =       snd_ca0106_pcm_close_playback,
974         .ioctl =       snd_pcm_lib_ioctl,
975         .hw_params =   snd_ca0106_pcm_hw_params_playback,
976         .hw_free =     snd_ca0106_pcm_hw_free_playback,
977         .prepare =     snd_ca0106_pcm_prepare_playback,
978         .trigger =     snd_ca0106_pcm_trigger_playback,
979         .pointer =     snd_ca0106_pcm_pointer_playback,
980 };
981
982 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
983         .open =        snd_ca0106_pcm_open_0_capture,
984         .close =       snd_ca0106_pcm_close_capture,
985         .ioctl =       snd_pcm_lib_ioctl,
986         .hw_params =   snd_ca0106_pcm_hw_params_capture,
987         .hw_free =     snd_ca0106_pcm_hw_free_capture,
988         .prepare =     snd_ca0106_pcm_prepare_capture,
989         .trigger =     snd_ca0106_pcm_trigger_capture,
990         .pointer =     snd_ca0106_pcm_pointer_capture,
991 };
992
993 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
994         .open =        snd_ca0106_pcm_open_1_capture,
995         .close =       snd_ca0106_pcm_close_capture,
996         .ioctl =       snd_pcm_lib_ioctl,
997         .hw_params =   snd_ca0106_pcm_hw_params_capture,
998         .hw_free =     snd_ca0106_pcm_hw_free_capture,
999         .prepare =     snd_ca0106_pcm_prepare_capture,
1000         .trigger =     snd_ca0106_pcm_trigger_capture,
1001         .pointer =     snd_ca0106_pcm_pointer_capture,
1002 };
1003
1004 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1005         .open =        snd_ca0106_pcm_open_2_capture,
1006         .close =       snd_ca0106_pcm_close_capture,
1007         .ioctl =       snd_pcm_lib_ioctl,
1008         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1009         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1010         .prepare =     snd_ca0106_pcm_prepare_capture,
1011         .trigger =     snd_ca0106_pcm_trigger_capture,
1012         .pointer =     snd_ca0106_pcm_pointer_capture,
1013 };
1014
1015 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1016         .open =        snd_ca0106_pcm_open_3_capture,
1017         .close =       snd_ca0106_pcm_close_capture,
1018         .ioctl =       snd_pcm_lib_ioctl,
1019         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1020         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1021         .prepare =     snd_ca0106_pcm_prepare_capture,
1022         .trigger =     snd_ca0106_pcm_trigger_capture,
1023         .pointer =     snd_ca0106_pcm_pointer_capture,
1024 };
1025
1026 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1027         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1028         .close =        snd_ca0106_pcm_close_playback,
1029         .ioctl =        snd_pcm_lib_ioctl,
1030         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1031         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1032         .prepare =      snd_ca0106_pcm_prepare_playback,     
1033         .trigger =      snd_ca0106_pcm_trigger_playback,  
1034         .pointer =      snd_ca0106_pcm_pointer_playback, 
1035 };
1036
1037 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1038         .open =         snd_ca0106_pcm_open_playback_unknown,
1039         .close =        snd_ca0106_pcm_close_playback,
1040         .ioctl =        snd_pcm_lib_ioctl,
1041         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1042         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1043         .prepare =      snd_ca0106_pcm_prepare_playback,     
1044         .trigger =      snd_ca0106_pcm_trigger_playback,  
1045         .pointer =      snd_ca0106_pcm_pointer_playback, 
1046 };
1047
1048 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1049         .open =         snd_ca0106_pcm_open_playback_rear,
1050         .close =        snd_ca0106_pcm_close_playback,
1051         .ioctl =        snd_pcm_lib_ioctl,
1052         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1053                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1054         .prepare =      snd_ca0106_pcm_prepare_playback,     
1055         .trigger =      snd_ca0106_pcm_trigger_playback,  
1056         .pointer =      snd_ca0106_pcm_pointer_playback, 
1057 };
1058
1059
1060 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1061                                              unsigned short reg)
1062 {
1063         struct snd_ca0106 *emu = ac97->private_data;
1064         unsigned long flags;
1065         unsigned short val;
1066
1067         spin_lock_irqsave(&emu->emu_lock, flags);
1068         outb(reg, emu->port + AC97ADDRESS);
1069         val = inw(emu->port + AC97DATA);
1070         spin_unlock_irqrestore(&emu->emu_lock, flags);
1071         return val;
1072 }
1073
1074 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1075                                     unsigned short reg, unsigned short val)
1076 {
1077         struct snd_ca0106 *emu = ac97->private_data;
1078         unsigned long flags;
1079   
1080         spin_lock_irqsave(&emu->emu_lock, flags);
1081         outb(reg, emu->port + AC97ADDRESS);
1082         outw(val, emu->port + AC97DATA);
1083         spin_unlock_irqrestore(&emu->emu_lock, flags);
1084 }
1085
1086 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1087 {
1088         struct snd_ac97_bus *pbus;
1089         struct snd_ac97_template ac97;
1090         int err;
1091         static struct snd_ac97_bus_ops ops = {
1092                 .write = snd_ca0106_ac97_write,
1093                 .read = snd_ca0106_ac97_read,
1094         };
1095   
1096         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1097                 return err;
1098         pbus->no_vra = 1; /* we don't need VRA */
1099
1100         memset(&ac97, 0, sizeof(ac97));
1101         ac97.private_data = chip;
1102         ac97.scaps = AC97_SCAP_NO_SPDIF;
1103         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1104 }
1105
1106 static int snd_ca0106_free(struct snd_ca0106 *chip)
1107 {
1108         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
1109                 // disable interrupts
1110                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1111                 outl(0, chip->port + INTE);
1112                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1113                 udelay(1000);
1114                 // disable audio
1115                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
1116                 outl(0, chip->port + HCFG);
1117                 /* FIXME: We need to stop and DMA transfers here.
1118                  *        But as I am not sure how yet, we cannot from the dma pages.
1119                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1120                  */
1121         }
1122         if (chip->irq >= 0)
1123                 free_irq(chip->irq, chip);
1124         // release the data
1125 #if 1
1126         if (chip->buffer.area)
1127                 snd_dma_free_pages(&chip->buffer);
1128 #endif
1129
1130         // release the i/o port
1131         release_and_free_resource(chip->res_port);
1132
1133         pci_disable_device(chip->pci);
1134         kfree(chip);
1135         return 0;
1136 }
1137
1138 static int snd_ca0106_dev_free(struct snd_device *device)
1139 {
1140         struct snd_ca0106 *chip = device->device_data;
1141         return snd_ca0106_free(chip);
1142 }
1143
1144 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1145 {
1146         unsigned int status;
1147
1148         struct snd_ca0106 *chip = dev_id;
1149         int i;
1150         int mask;
1151         unsigned int stat76;
1152         struct snd_ca0106_channel *pchannel;
1153
1154         status = inl(chip->port + IPR);
1155         if (! status)
1156                 return IRQ_NONE;
1157
1158         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1159         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1160         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1161         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1162         for(i = 0; i < 4; i++) {
1163                 pchannel = &(chip->playback_channels[i]);
1164                 if (stat76 & mask) {
1165 /* FIXME: Select the correct substream for period elapsed */
1166                         if(pchannel->use) {
1167                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1168                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1169                         }
1170                 }
1171                 //printk(KERN_INFO "channel=%p\n",pchannel);
1172                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1173                 mask <<= 1;
1174         }
1175         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1176         for(i = 0; i < 4; i++) {
1177                 pchannel = &(chip->capture_channels[i]);
1178                 if (stat76 & mask) {
1179 /* FIXME: Select the correct substream for period elapsed */
1180                         if(pchannel->use) {
1181                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1182                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1183                         }
1184                 }
1185                 //printk(KERN_INFO "channel=%p\n",pchannel);
1186                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1187                 mask <<= 1;
1188         }
1189
1190         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1191
1192         if (chip->midi.dev_id &&
1193             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1194                 if (chip->midi.interrupt)
1195                         chip->midi.interrupt(&chip->midi, status);
1196                 else
1197                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1198         }
1199
1200         // acknowledge the interrupt if necessary
1201         outl(status, chip->port+IPR);
1202
1203         return IRQ_HANDLED;
1204 }
1205
1206 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device, struct snd_pcm **rpcm)
1207 {
1208         struct snd_pcm *pcm;
1209         struct snd_pcm_substream *substream;
1210         int err;
1211   
1212         if (rpcm)
1213                 *rpcm = NULL;
1214         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1215                 return err;
1216   
1217         pcm->private_data = emu;
1218
1219         switch (device) {
1220         case 0:
1221           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1222           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1223           break;
1224         case 1:
1225           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1226           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1227           break;
1228         case 2:
1229           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1230           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1231           break;
1232         case 3:
1233           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1234           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1235           break;
1236         }
1237
1238         pcm->info_flags = 0;
1239         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1240         strcpy(pcm->name, "CA0106");
1241         emu->pcm = pcm;
1242
1243         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1244             substream; 
1245             substream = substream->next) {
1246                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1247                                                          SNDRV_DMA_TYPE_DEV, 
1248                                                          snd_dma_pci_data(emu->pci), 
1249                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1250                         return err;
1251         }
1252
1253         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1254               substream; 
1255               substream = substream->next) {
1256                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1257                                                    SNDRV_DMA_TYPE_DEV, 
1258                                                    snd_dma_pci_data(emu->pci), 
1259                                                    64*1024, 64*1024)) < 0)
1260                         return err;
1261         }
1262   
1263         if (rpcm)
1264                 *rpcm = pcm;
1265   
1266         return 0;
1267 }
1268
1269 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1270 static unsigned int spi_dac_init[] = {
1271         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1272         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1273         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1274         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1275         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1276         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1277         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1278         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1279         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1280         SPI_REG(9,              0x00),
1281         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1282         SPI_REG(12,             0x00),
1283         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1284         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1285         SPI_REG(SPI_DACD4_REG,  0x00),
1286 };
1287
1288 static unsigned int i2c_adc_init[][2] = {
1289         { 0x17, 0x00 }, /* Reset */
1290         { 0x07, 0x00 }, /* Timeout */
1291         { 0x0b, 0x22 },  /* Interface control */
1292         { 0x0c, 0x22 },  /* Master mode control */
1293         { 0x0d, 0x08 },  /* Powerdown control */
1294         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1295         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1296         { 0x10, 0x7b },  /* ALC Control 1 */
1297         { 0x11, 0x00 },  /* ALC Control 2 */
1298         { 0x12, 0x32 },  /* ALC Control 3 */
1299         { 0x13, 0x00 },  /* Noise gate control */
1300         { 0x14, 0xa6 },  /* Limiter control */
1301         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1302 };
1303
1304 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1305                                          struct pci_dev *pci,
1306                                          struct snd_ca0106 **rchip)
1307 {
1308         struct snd_ca0106 *chip;
1309         struct snd_ca0106_details *c;
1310         int err;
1311         int ch;
1312         static struct snd_device_ops ops = {
1313                 .dev_free = snd_ca0106_dev_free,
1314         };
1315   
1316         *rchip = NULL;
1317   
1318         if ((err = pci_enable_device(pci)) < 0)
1319                 return err;
1320         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1321             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1322                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1323                 pci_disable_device(pci);
1324                 return -ENXIO;
1325         }
1326   
1327         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1328         if (chip == NULL) {
1329                 pci_disable_device(pci);
1330                 return -ENOMEM;
1331         }
1332   
1333         chip->card = card;
1334         chip->pci = pci;
1335         chip->irq = -1;
1336
1337         spin_lock_init(&chip->emu_lock);
1338   
1339         chip->port = pci_resource_start(pci, 0);
1340         if ((chip->res_port = request_region(chip->port, 0x20,
1341                                              "snd_ca0106")) == NULL) { 
1342                 snd_ca0106_free(chip);
1343                 printk(KERN_ERR "cannot allocate the port\n");
1344                 return -EBUSY;
1345         }
1346
1347         if (request_irq(pci->irq, snd_ca0106_interrupt,
1348                         IRQF_SHARED, "snd_ca0106", chip)) {
1349                 snd_ca0106_free(chip);
1350                 printk(KERN_ERR "cannot grab irq\n");
1351                 return -EBUSY;
1352         }
1353         chip->irq = pci->irq;
1354   
1355         /* This stores the periods table. */ 
1356         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1357                 snd_ca0106_free(chip);
1358                 return -ENOMEM;
1359         }
1360
1361         pci_set_master(pci);
1362         /* read serial */
1363         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1364         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1365 #if 1
1366         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n", chip->model,
1367                pci->revision, chip->serial);
1368 #endif
1369         strcpy(card->driver, "CA0106");
1370         strcpy(card->shortname, "CA0106");
1371
1372         for (c = ca0106_chip_details; c->serial; c++) {
1373                 if (subsystem[dev]) {
1374                         if (c->serial == subsystem[dev])
1375                                 break;
1376                 } else if (c->serial == chip->serial)
1377                         break;
1378         }
1379         chip->details = c;
1380         if (subsystem[dev]) {
1381                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, subsystem=0x%x. Forced to subsystem=0x%x\n",
1382                         c->name, chip->serial, subsystem[dev]);
1383         }
1384
1385         sprintf(card->longname, "%s at 0x%lx irq %i",
1386                 c->name, chip->port, chip->irq);
1387
1388         outl(0, chip->port + INTE);
1389
1390         /*
1391          *  Init to 0x02109204 :
1392          *  Clock accuracy    = 0     (1000ppm)
1393          *  Sample Rate       = 2     (48kHz)
1394          *  Audio Channel     = 1     (Left of 2)
1395          *  Source Number     = 0     (Unspecified)
1396          *  Generation Status = 1     (Original for Cat Code 12)
1397          *  Cat Code          = 12    (Digital Signal Mixer)
1398          *  Mode              = 0     (Mode 0)
1399          *  Emphasis          = 0     (None)
1400          *  CP                = 1     (Copyright unasserted)
1401          *  AN                = 0     (Audio data)
1402          *  P                 = 0     (Consumer)
1403          */
1404         snd_ca0106_ptr_write(chip, SPCS0, 0,
1405                                 chip->spdif_bits[0] =
1406                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1407                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1408                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1409                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1410         /* Only SPCS1 has been tested */
1411         snd_ca0106_ptr_write(chip, SPCS1, 0,
1412                                 chip->spdif_bits[1] =
1413                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1414                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1415                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1416                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1417         snd_ca0106_ptr_write(chip, SPCS2, 0,
1418                                 chip->spdif_bits[2] =
1419                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1420                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1421                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1422                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1423         snd_ca0106_ptr_write(chip, SPCS3, 0,
1424                                 chip->spdif_bits[3] =
1425                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1426                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1427                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1428                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1429
1430         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1431         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1432
1433         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1434         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1435         outw(0x8000, chip->port + AC97DATA);
1436 #if 0
1437         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1438         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1439         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1440         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1441 #endif
1442
1443         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1444         /* Analog or Digital output */
1445         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1446         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1447         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1448         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1449         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1450
1451         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1452         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1453         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1454         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1455         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1456         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1457         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1458         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1459         for(ch = 0; ch < 4; ch++) {
1460                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1461                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1462                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1463                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1464                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1465                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1466         }
1467         if (chip->details->i2c_adc == 1) {
1468                 /* Select MIC, Line in, TAD in, AUX in */
1469                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1470                 /* Default to CAPTURE_SOURCE to i2s in */
1471                 chip->capture_source = 3;
1472         } else if (chip->details->ac97 == 1) {
1473                 /* Default to AC97 in */
1474                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1475                 /* Default to CAPTURE_SOURCE to AC97 in */
1476                 chip->capture_source = 4;
1477         } else {
1478                 /* Select MIC, Line in, TAD in, AUX in */
1479                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1480                 /* Default to Set CAPTURE_SOURCE to i2s in */
1481                 chip->capture_source = 3;
1482         }
1483
1484         if (chip->details->gpio_type == 2) { /* The SB0438 use GPIO differently. */
1485                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1486                 outl(0x0, chip->port+GPIO);
1487                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1488                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1489         } else if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1490                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1491                 outl(0x0, chip->port+GPIO);
1492                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1493                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1494         } else {
1495                 outl(0x0, chip->port+GPIO);
1496                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1497                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1498         }
1499         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1500
1501         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1502         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1503         //outl(0x00000009, chip->port+HCFG);
1504         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1505
1506         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1507                 int size, n;
1508
1509                 size = ARRAY_SIZE(i2c_adc_init);
1510                 //snd_printk("I2C:array size=0x%x\n", size);
1511                 for (n=0; n < size; n++) {
1512                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0], i2c_adc_init[n][1]);
1513                 }
1514                 for (n=0; n < 4; n++) {
1515                         chip->i2c_capture_volume[n][0]= 0xcf;
1516                         chip->i2c_capture_volume[n][1]= 0xcf;
1517                 }
1518                 chip->i2c_capture_source=2; /* Line in */
1519                 //snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1520         }
1521         if (chip->details->spi_dac == 1) { /* The SB0570 use SPI to control DAC. */
1522                 int size, n;
1523
1524                 size = ARRAY_SIZE(spi_dac_init);
1525                 for (n = 0; n < size; n++) {
1526                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1527
1528                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1529                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1530                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1531                 }
1532         }
1533
1534         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1535                                   chip, &ops)) < 0) {
1536                 snd_ca0106_free(chip);
1537                 return err;
1538         }
1539         *rchip = chip;
1540         return 0;
1541 }
1542
1543
1544 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1545 {
1546         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1547 }
1548
1549 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1550 {
1551         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1552 }
1553
1554 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1555 {
1556         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1557                                                   midi->port + idx, 0);
1558 }
1559
1560 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1561 {
1562         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1563 }
1564
1565 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1566 {
1567         return ((struct snd_ca0106 *)dev_id)->card;
1568 }
1569
1570 static int ca0106_dev_id_port(void *dev_id)
1571 {
1572         return ((struct snd_ca0106 *)dev_id)->port;
1573 }
1574
1575 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1576 {
1577         struct snd_ca_midi *midi;
1578         char *name;
1579         int err;
1580
1581         if (channel == CA0106_MIDI_CHAN_B) {
1582                 name = "CA0106 MPU-401 (UART) B";
1583                 midi =  &chip->midi2;
1584                 midi->tx_enable = INTE_MIDI_TX_B;
1585                 midi->rx_enable = INTE_MIDI_RX_B;
1586                 midi->ipr_tx = IPR_MIDI_TX_B;
1587                 midi->ipr_rx = IPR_MIDI_RX_B;
1588                 midi->port = MIDI_UART_B_DATA;
1589         } else {
1590                 name = "CA0106 MPU-401 (UART)";
1591                 midi =  &chip->midi;
1592                 midi->tx_enable = INTE_MIDI_TX_A;
1593                 midi->rx_enable = INTE_MIDI_TX_B;
1594                 midi->ipr_tx = IPR_MIDI_TX_A;
1595                 midi->ipr_rx = IPR_MIDI_RX_A;
1596                 midi->port = MIDI_UART_A_DATA;
1597         }
1598
1599         midi->reset = CA0106_MPU401_RESET;
1600         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1601         midi->ack = CA0106_MPU401_ACK;
1602
1603         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1604         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1605
1606         midi->channel = channel;
1607
1608         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1609         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1610
1611         midi->read = ca0106_midi_read;
1612         midi->write = ca0106_midi_write;
1613
1614         midi->get_dev_id_card = ca0106_dev_id_card;
1615         midi->get_dev_id_port = ca0106_dev_id_port;
1616
1617         midi->dev_id = chip;
1618         
1619         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1620                 return err;
1621
1622         return 0;
1623 }
1624
1625
1626 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1627                                         const struct pci_device_id *pci_id)
1628 {
1629         static int dev;
1630         struct snd_card *card;
1631         struct snd_ca0106 *chip;
1632         int err;
1633
1634         if (dev >= SNDRV_CARDS)
1635                 return -ENODEV;
1636         if (!enable[dev]) {
1637                 dev++;
1638                 return -ENOENT;
1639         }
1640
1641         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1642         if (card == NULL)
1643                 return -ENOMEM;
1644
1645         if ((err = snd_ca0106_create(dev, card, pci, &chip)) < 0) {
1646                 snd_card_free(card);
1647                 return err;
1648         }
1649
1650         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1651                 snd_card_free(card);
1652                 return err;
1653         }
1654         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1655                 snd_card_free(card);
1656                 return err;
1657         }
1658         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1659                 snd_card_free(card);
1660                 return err;
1661         }
1662         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1663                 snd_card_free(card);
1664                 return err;
1665         }
1666         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1667                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1668                         snd_card_free(card);
1669                         return err;
1670                 }
1671         }
1672         if ((err = snd_ca0106_mixer(chip)) < 0) {
1673                 snd_card_free(card);
1674                 return err;
1675         }
1676
1677         snd_printdd("ca0106: probe for MIDI channel A ...");
1678         if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) {
1679                 snd_card_free(card);
1680                 snd_printdd(" failed, err=0x%x\n",err);
1681                 return err;
1682         }
1683         snd_printdd(" done.\n");
1684
1685 #ifdef CONFIG_PROC_FS
1686         snd_ca0106_proc_init(chip);
1687 #endif
1688
1689         snd_card_set_dev(card, &pci->dev);
1690
1691         if ((err = snd_card_register(card)) < 0) {
1692                 snd_card_free(card);
1693                 return err;
1694         }
1695
1696         pci_set_drvdata(pci, card);
1697         dev++;
1698         return 0;
1699 }
1700
1701 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1702 {
1703         snd_card_free(pci_get_drvdata(pci));
1704         pci_set_drvdata(pci, NULL);
1705 }
1706
1707 // PCI IDs
1708 static struct pci_device_id snd_ca0106_ids[] = {
1709         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1710         { 0, }
1711 };
1712 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1713
1714 // pci_driver definition
1715 static struct pci_driver driver = {
1716         .name = "CA0106",
1717         .id_table = snd_ca0106_ids,
1718         .probe = snd_ca0106_probe,
1719         .remove = __devexit_p(snd_ca0106_remove),
1720 };
1721
1722 // initialization of the module
1723 static int __init alsa_card_ca0106_init(void)
1724 {
1725         return pci_register_driver(&driver);
1726 }
1727
1728 // clean up the module
1729 static void __exit alsa_card_ca0106_exit(void)
1730 {
1731         pci_unregister_driver(&driver);
1732 }
1733
1734 module_init(alsa_card_ca0106_init)
1735 module_exit(alsa_card_ca0106_exit)