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