57b992a5c05724c6b67e18668464e592d8b82660
[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 = 1 } ,
258         /* Giga-byte GA-G1975X mobo
259          * Novell bnc#395807
260          */
261         /* FIXME: the GPIO and I2C setting aren't tested well */
262         { .serial = 0x1458a006,
263           .name = "Giga-byte GA-G1975X",
264           .gpio_type = 1,
265           .i2c_adc = 1 },
266          /* Shuttle XPC SD31P which has an onboard Creative Labs
267           * Sound Blaster Live! 24-bit EAX
268           * high-definition 7.1 audio processor".
269           * Added using info from andrewvegan in alsa bug #1298
270           */
271          { .serial = 0x30381297,
272            .name   = "Shuttle XPC SD31P [SD31P]",
273            .gpio_type = 1,
274            .i2c_adc = 1 } ,
275         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
276          * Sound Blaster Live! 24-bit EAX
277          * high-definition 7.1 audio processor".
278          * Fixes ALSA bug#1600
279          */
280         { .serial = 0x30411297,
281           .name = "Shuttle XPC SD11G5 [SD11G5]",
282           .gpio_type = 1,
283           .i2c_adc = 1 } ,
284          { .serial = 0,
285            .name   = "AudigyLS [Unknown]" }
286 };
287
288 /* hardware definition */
289 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
290         .info =                 SNDRV_PCM_INFO_MMAP | 
291                                 SNDRV_PCM_INFO_INTERLEAVED |
292                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
293                                 SNDRV_PCM_INFO_MMAP_VALID |
294                                 SNDRV_PCM_INFO_SYNC_START,
295         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
296         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
297                                  SNDRV_PCM_RATE_192000),
298         .rate_min =             48000,
299         .rate_max =             192000,
300         .channels_min =         2,  //1,
301         .channels_max =         2,  //6,
302         .buffer_bytes_max =     ((65536 - 64) * 8),
303         .period_bytes_min =     64,
304         .period_bytes_max =     (65536 - 64),
305         .periods_min =          2,
306         .periods_max =          8,
307         .fifo_size =            0,
308 };
309
310 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
311         .info =                 (SNDRV_PCM_INFO_MMAP | 
312                                  SNDRV_PCM_INFO_INTERLEAVED |
313                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
314                                  SNDRV_PCM_INFO_MMAP_VALID),
315         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
316 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
317         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
318                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
319         .rate_min =             44100,
320 #else
321         .rates =                (SNDRV_PCM_RATE_48000 |
322                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
323         .rate_min =             48000,
324 #endif /* FIXME */
325         .rate_max =             192000,
326         .channels_min =         2,
327         .channels_max =         2,
328         .buffer_bytes_max =     ((65536 - 64) * 8),
329         .period_bytes_min =     64,
330         .period_bytes_max =     (65536 - 64),
331         .periods_min =          2,
332         .periods_max =          2,
333         .fifo_size =            0,
334 };
335
336 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu, 
337                                           unsigned int reg, 
338                                           unsigned int chn)
339 {
340         unsigned long flags;
341         unsigned int regptr, val;
342   
343         regptr = (reg << 16) | chn;
344
345         spin_lock_irqsave(&emu->emu_lock, flags);
346         outl(regptr, emu->port + PTR);
347         val = inl(emu->port + DATA);
348         spin_unlock_irqrestore(&emu->emu_lock, flags);
349         return val;
350 }
351
352 void snd_ca0106_ptr_write(struct snd_ca0106 *emu, 
353                                    unsigned int reg, 
354                                    unsigned int chn, 
355                                    unsigned int data)
356 {
357         unsigned int regptr;
358         unsigned long flags;
359
360         regptr = (reg << 16) | chn;
361
362         spin_lock_irqsave(&emu->emu_lock, flags);
363         outl(regptr, emu->port + PTR);
364         outl(data, emu->port + DATA);
365         spin_unlock_irqrestore(&emu->emu_lock, flags);
366 }
367
368 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
369                                    unsigned int data)
370 {
371         unsigned int reset, set;
372         unsigned int reg, tmp;
373         int n, result;
374         reg = SPI;
375         if (data > 0xffff) /* Only 16bit values allowed */
376                 return 1;
377         tmp = snd_ca0106_ptr_read(emu, reg, 0);
378         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
379         set = reset | 0x10000; /* Set xxx1xxxx */
380         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
381         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
382         snd_ca0106_ptr_write(emu, reg, 0, set | data);
383         result = 1;
384         /* Wait for status bit to return to 0 */
385         for (n = 0; n < 100; n++) {
386                 udelay(10);
387                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
388                 if (!(tmp & 0x10000)) {
389                         result = 0;
390                         break;
391                 }
392         }
393         if (result) /* Timed out */
394                 return 1;
395         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
396         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
397         return 0;
398 }
399
400 /* The ADC does not support i2c read, so only write is implemented */
401 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
402                                 u32 reg,
403                                 u32 value)
404 {
405         u32 tmp;
406         int timeout = 0;
407         int status;
408         int retry;
409         if ((reg > 0x7f) || (value > 0x1ff)) {
410                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
411                 return -EINVAL;
412         }
413
414         tmp = reg << 25 | value << 16;
415         /*
416         snd_printk(KERN_DEBUG "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
417         */
418         /* Not sure what this I2C channel controls. */
419         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
420
421         /* This controls the I2C connected to the WM8775 ADC Codec */
422         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
423
424         for (retry = 0; retry < 10; retry++) {
425                 /* Send the data to i2c */
426                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
427                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
428                 tmp = 0;
429                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
430                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
431
432                 /* Wait till the transaction ends */
433                 while (1) {
434                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
435                         /*snd_printk(KERN_DEBUG "I2C:status=0x%x\n", status);*/
436                         timeout++;
437                         if ((status & I2C_A_ADC_START) == 0)
438                                 break;
439
440                         if (timeout > 1000)
441                                 break;
442                 }
443                 //Read back and see if the transaction is successful
444                 if ((status & I2C_A_ADC_ABORT) == 0)
445                         break;
446         }
447
448         if (retry == 10) {
449                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
450                 return -EINVAL;
451         }
452     
453         return 0;
454 }
455
456
457 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
458 {
459         unsigned long flags;
460         unsigned int intr_enable;
461
462         spin_lock_irqsave(&emu->emu_lock, flags);
463         intr_enable = inl(emu->port + INTE) | intrenb;
464         outl(intr_enable, emu->port + INTE);
465         spin_unlock_irqrestore(&emu->emu_lock, flags);
466 }
467
468 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
469 {
470         unsigned long flags;
471         unsigned int intr_enable;
472
473         spin_lock_irqsave(&emu->emu_lock, flags);
474         intr_enable = inl(emu->port + INTE) & ~intrenb;
475         outl(intr_enable, emu->port + INTE);
476         spin_unlock_irqrestore(&emu->emu_lock, flags);
477 }
478
479
480 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
481 {
482         kfree(runtime->private_data);
483 }
484
485 static const int spi_dacd_reg[] = {
486         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
487         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
488         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
489         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
490 };
491 static const int spi_dacd_bit[] = {
492         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
493         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
494         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
495         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
496 };
497
498 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
499 {
500         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
501                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
502                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
503                                      chip->spdif_str_bits[idx]);
504         }
505 }
506
507 /* open_playback callback */
508 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
509                                                 int channel_id)
510 {
511         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
512         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
513         struct snd_ca0106_pcm *epcm;
514         struct snd_pcm_runtime *runtime = substream->runtime;
515         int err;
516
517         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
518
519         if (epcm == NULL)
520                 return -ENOMEM;
521         epcm->emu = chip;
522         epcm->substream = substream;
523         epcm->channel_id=channel_id;
524   
525         runtime->private_data = epcm;
526         runtime->private_free = snd_ca0106_pcm_free_substream;
527   
528         runtime->hw = snd_ca0106_playback_hw;
529
530         channel->emu = chip;
531         channel->number = channel_id;
532
533         channel->use = 1;
534         /*
535         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
536                channel_id, chip, channel);
537         */
538         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
539         channel->epcm = epcm;
540         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
541                 return err;
542         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
543                 return err;
544         snd_pcm_set_sync(substream);
545
546         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
547                 const int reg = spi_dacd_reg[channel_id];
548
549                 /* Power up dac */
550                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
551                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
552                 if (err < 0)
553                         return err;
554         }
555
556         restore_spdif_bits(chip, channel_id);
557
558         return 0;
559 }
560
561 /* close callback */
562 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
563 {
564         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
565         struct snd_pcm_runtime *runtime = substream->runtime;
566         struct snd_ca0106_pcm *epcm = runtime->private_data;
567         chip->playback_channels[epcm->channel_id].use = 0;
568
569         restore_spdif_bits(chip, epcm->channel_id);
570
571         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
572                 const int reg = spi_dacd_reg[epcm->channel_id];
573
574                 /* Power down DAC */
575                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
576                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
577         }
578         /* FIXME: maybe zero others */
579         return 0;
580 }
581
582 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
583 {
584         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
585 }
586
587 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
588 {
589         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
590 }
591
592 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
593 {
594         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
595 }
596
597 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
598 {
599         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
600 }
601
602 /* open_capture callback */
603 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
604                                                int channel_id)
605 {
606         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
607         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
608         struct snd_ca0106_pcm *epcm;
609         struct snd_pcm_runtime *runtime = substream->runtime;
610         int err;
611
612         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
613         if (epcm == NULL) {
614                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
615                 return -ENOMEM;
616         }
617         epcm->emu = chip;
618         epcm->substream = substream;
619         epcm->channel_id=channel_id;
620   
621         runtime->private_data = epcm;
622         runtime->private_free = snd_ca0106_pcm_free_substream;
623   
624         runtime->hw = snd_ca0106_capture_hw;
625
626         channel->emu = chip;
627         channel->number = channel_id;
628
629         channel->use = 1;
630         /*
631         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
632                channel_id, chip, channel);
633         */
634         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
635         channel->epcm = epcm;
636         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
637                 return err;
638         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
639         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
640                 return err;
641         return 0;
642 }
643
644 /* close callback */
645 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
646 {
647         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
648         struct snd_pcm_runtime *runtime = substream->runtime;
649         struct snd_ca0106_pcm *epcm = runtime->private_data;
650         chip->capture_channels[epcm->channel_id].use = 0;
651         /* FIXME: maybe zero others */
652         return 0;
653 }
654
655 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
656 {
657         return snd_ca0106_pcm_open_capture_channel(substream, 0);
658 }
659
660 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
661 {
662         return snd_ca0106_pcm_open_capture_channel(substream, 1);
663 }
664
665 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
666 {
667         return snd_ca0106_pcm_open_capture_channel(substream, 2);
668 }
669
670 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
671 {
672         return snd_ca0106_pcm_open_capture_channel(substream, 3);
673 }
674
675 /* hw_params callback */
676 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
677                                       struct snd_pcm_hw_params *hw_params)
678 {
679         return snd_pcm_lib_malloc_pages(substream,
680                                         params_buffer_bytes(hw_params));
681 }
682
683 /* hw_free callback */
684 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
685 {
686         return snd_pcm_lib_free_pages(substream);
687 }
688
689 /* hw_params callback */
690 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
691                                       struct snd_pcm_hw_params *hw_params)
692 {
693         return snd_pcm_lib_malloc_pages(substream,
694                                         params_buffer_bytes(hw_params));
695 }
696
697 /* hw_free callback */
698 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
699 {
700         return snd_pcm_lib_free_pages(substream);
701 }
702
703 /* prepare playback callback */
704 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
705 {
706         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
707         struct snd_pcm_runtime *runtime = substream->runtime;
708         struct snd_ca0106_pcm *epcm = runtime->private_data;
709         int channel = epcm->channel_id;
710         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
711         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
712         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
713         u32 hcfg_set = 0x00000000;
714         u32 hcfg;
715         u32 reg40_mask = 0x30000 << (channel<<1);
716         u32 reg40_set = 0;
717         u32 reg40;
718         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
719         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
720         u32 reg71_set = 0;
721         u32 reg71;
722         int i;
723         
724 #if 0 /* debug */
725         snd_printk(KERN_DEBUG
726                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
727                    "channels=%d, buffer_size=%ld, period_size=%ld, "
728                    "periods=%u, frames_to_bytes=%d\n",
729                    channel, runtime->rate, runtime->format,
730                    runtime->channels, runtime->buffer_size,
731                    runtime->period_size, runtime->periods,
732                    frames_to_bytes(runtime, 1));
733         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
734                    runtime->dma_addr, runtime->dma_area, table_base);
735         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
736                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
737 #endif /* debug */
738         /* Rate can be set per channel. */
739         /* reg40 control host to fifo */
740         /* reg71 controls DAC rate. */
741         switch (runtime->rate) {
742         case 44100:
743                 reg40_set = 0x10000 << (channel<<1);
744                 reg71_set = 0x01010000; 
745                 break;
746         case 48000:
747                 reg40_set = 0;
748                 reg71_set = 0; 
749                 break;
750         case 96000:
751                 reg40_set = 0x20000 << (channel<<1);
752                 reg71_set = 0x02020000; 
753                 break;
754         case 192000:
755                 reg40_set = 0x30000 << (channel<<1);
756                 reg71_set = 0x03030000; 
757                 break;
758         default:
759                 reg40_set = 0;
760                 reg71_set = 0; 
761                 break;
762         }
763         /* Format is a global setting */
764         /* FIXME: Only let the first channel accessed set this. */
765         switch (runtime->format) {
766         case SNDRV_PCM_FORMAT_S16_LE:
767                 hcfg_set = 0;
768                 break;
769         case SNDRV_PCM_FORMAT_S32_LE:
770                 hcfg_set = HCFG_PLAYBACK_S32_LE;
771                 break;
772         default:
773                 hcfg_set = 0;
774                 break;
775         }
776         hcfg = inl(emu->port + HCFG) ;
777         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
778         outl(hcfg, emu->port + HCFG);
779         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
780         reg40 = (reg40 & ~reg40_mask) | reg40_set;
781         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
782         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
783         reg71 = (reg71 & ~reg71_mask) | reg71_set;
784         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
785
786         /* FIXME: Check emu->buffer.size before actually writing to it. */
787         for(i=0; i < runtime->periods; i++) {
788                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
789                 table_base[i*2+1] = period_size_bytes << 16;
790         }
791  
792         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
793         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
794         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
795         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
796         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
797         /* FIXME  test what 0 bytes does. */
798         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
799         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
800         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
801         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
802         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
803 #if 0
804         snd_ca0106_ptr_write(emu, SPCS0, 0,
805                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
806                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
807                                SPCS_GENERATIONSTATUS | 0x00001200 |
808                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
809 #endif
810
811         return 0;
812 }
813
814 /* prepare capture callback */
815 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
816 {
817         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
818         struct snd_pcm_runtime *runtime = substream->runtime;
819         struct snd_ca0106_pcm *epcm = runtime->private_data;
820         int channel = epcm->channel_id;
821         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
822         u32 hcfg_set = 0x00000000;
823         u32 hcfg;
824         u32 over_sampling=0x2;
825         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
826         u32 reg71_set = 0;
827         u32 reg71;
828         
829 #if 0 /* debug */
830         snd_printk(KERN_DEBUG
831                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
832                    "channels=%d, buffer_size=%ld, period_size=%ld, "
833                    "periods=%u, frames_to_bytes=%d\n",
834                    channel, runtime->rate, runtime->format,
835                    runtime->channels, runtime->buffer_size,
836                    runtime->period_size, runtime->periods,
837                    frames_to_bytes(runtime, 1));
838         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
839                    runtime->dma_addr, runtime->dma_area, table_base);
840         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
841                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
842 #endif /* debug */
843         /* reg71 controls ADC rate. */
844         switch (runtime->rate) {
845         case 44100:
846                 reg71_set = 0x00004000;
847                 break;
848         case 48000:
849                 reg71_set = 0; 
850                 break;
851         case 96000:
852                 reg71_set = 0x00008000;
853                 over_sampling=0xa;
854                 break;
855         case 192000:
856                 reg71_set = 0x0000c000; 
857                 over_sampling=0xa;
858                 break;
859         default:
860                 reg71_set = 0; 
861                 break;
862         }
863         /* Format is a global setting */
864         /* FIXME: Only let the first channel accessed set this. */
865         switch (runtime->format) {
866         case SNDRV_PCM_FORMAT_S16_LE:
867                 hcfg_set = 0;
868                 break;
869         case SNDRV_PCM_FORMAT_S32_LE:
870                 hcfg_set = HCFG_CAPTURE_S32_LE;
871                 break;
872         default:
873                 hcfg_set = 0;
874                 break;
875         }
876         hcfg = inl(emu->port + HCFG) ;
877         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
878         outl(hcfg, emu->port + HCFG);
879         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
880         reg71 = (reg71 & ~reg71_mask) | reg71_set;
881         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
882         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
883                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
884         }
885
886
887         /*
888         printk(KERN_DEBUG
889                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
890                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
891                channel, runtime->rate, runtime->format, runtime->channels,
892                runtime->buffer_size, runtime->period_size,
893                frames_to_bytes(runtime, 1));
894         */
895         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
896         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
897         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
898         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
899
900         return 0;
901 }
902
903 /* trigger_playback callback */
904 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
905                                     int cmd)
906 {
907         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
908         struct snd_pcm_runtime *runtime;
909         struct snd_ca0106_pcm *epcm;
910         int channel;
911         int result = 0;
912         struct snd_pcm_substream *s;
913         u32 basic = 0;
914         u32 extended = 0;
915         u32 bits;
916         int running = 0;
917
918         switch (cmd) {
919         case SNDRV_PCM_TRIGGER_START:
920         case SNDRV_PCM_TRIGGER_RESUME:
921                 running = 1;
922                 break;
923         case SNDRV_PCM_TRIGGER_STOP:
924         case SNDRV_PCM_TRIGGER_SUSPEND:
925         default:
926                 running = 0;
927                 break;
928         }
929         snd_pcm_group_for_each_entry(s, substream) {
930                 if (snd_pcm_substream_chip(s) != emu ||
931                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
932                         continue;
933                 runtime = s->runtime;
934                 epcm = runtime->private_data;
935                 channel = epcm->channel_id;
936                 /* snd_printk(KERN_DEBUG "channel=%d\n", channel); */
937                 epcm->running = running;
938                 basic |= (0x1 << channel);
939                 extended |= (0x10 << channel);
940                 snd_pcm_trigger_done(s, substream);
941         }
942         /* snd_printk(KERN_DEBUG "basic=0x%x, extended=0x%x\n",basic, extended); */
943
944         switch (cmd) {
945         case SNDRV_PCM_TRIGGER_START:
946         case SNDRV_PCM_TRIGGER_RESUME:
947                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
948                 bits |= extended;
949                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
950                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
951                 bits |= basic;
952                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
953                 break;
954         case SNDRV_PCM_TRIGGER_STOP:
955         case SNDRV_PCM_TRIGGER_SUSPEND:
956                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
957                 bits &= ~basic;
958                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
959                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
960                 bits &= ~extended;
961                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
962                 break;
963         default:
964                 result = -EINVAL;
965                 break;
966         }
967         return result;
968 }
969
970 /* trigger_capture callback */
971 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
972                                     int cmd)
973 {
974         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
975         struct snd_pcm_runtime *runtime = substream->runtime;
976         struct snd_ca0106_pcm *epcm = runtime->private_data;
977         int channel = epcm->channel_id;
978         int result = 0;
979
980         switch (cmd) {
981         case SNDRV_PCM_TRIGGER_START:
982                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
983                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
984                 epcm->running = 1;
985                 break;
986         case SNDRV_PCM_TRIGGER_STOP:
987                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
988                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
989                 epcm->running = 0;
990                 break;
991         default:
992                 result = -EINVAL;
993                 break;
994         }
995         return result;
996 }
997
998 /* pointer_playback callback */
999 static snd_pcm_uframes_t
1000 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1001 {
1002         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1003         struct snd_pcm_runtime *runtime = substream->runtime;
1004         struct snd_ca0106_pcm *epcm = runtime->private_data;
1005         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
1006         int channel = epcm->channel_id;
1007
1008         if (!epcm->running)
1009                 return 0;
1010
1011         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1012         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
1013         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1014         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
1015         ptr2 = bytes_to_frames(runtime, ptr1);
1016         ptr2+= (ptr4 >> 3) * runtime->period_size;
1017         ptr=ptr2;
1018         if (ptr >= runtime->buffer_size)
1019                 ptr -= runtime->buffer_size;
1020         /*
1021         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1022                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1023                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1024                (int)runtime->period_size, (int)runtime->frame_bits,
1025                (int)runtime->rate);
1026         */
1027         return ptr;
1028 }
1029
1030 /* pointer_capture callback */
1031 static snd_pcm_uframes_t
1032 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1033 {
1034         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1035         struct snd_pcm_runtime *runtime = substream->runtime;
1036         struct snd_ca0106_pcm *epcm = runtime->private_data;
1037         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1038         int channel = channel=epcm->channel_id;
1039
1040         if (!epcm->running)
1041                 return 0;
1042
1043         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1044         ptr2 = bytes_to_frames(runtime, ptr1);
1045         ptr=ptr2;
1046         if (ptr >= runtime->buffer_size)
1047                 ptr -= runtime->buffer_size;
1048         /*
1049         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1050                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1051                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1052                (int)runtime->period_size, (int)runtime->frame_bits,
1053                (int)runtime->rate);
1054         */
1055         return ptr;
1056 }
1057
1058 /* operators */
1059 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1060         .open =        snd_ca0106_pcm_open_playback_front,
1061         .close =       snd_ca0106_pcm_close_playback,
1062         .ioctl =       snd_pcm_lib_ioctl,
1063         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1064         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1065         .prepare =     snd_ca0106_pcm_prepare_playback,
1066         .trigger =     snd_ca0106_pcm_trigger_playback,
1067         .pointer =     snd_ca0106_pcm_pointer_playback,
1068 };
1069
1070 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1071         .open =        snd_ca0106_pcm_open_0_capture,
1072         .close =       snd_ca0106_pcm_close_capture,
1073         .ioctl =       snd_pcm_lib_ioctl,
1074         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1075         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1076         .prepare =     snd_ca0106_pcm_prepare_capture,
1077         .trigger =     snd_ca0106_pcm_trigger_capture,
1078         .pointer =     snd_ca0106_pcm_pointer_capture,
1079 };
1080
1081 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1082         .open =        snd_ca0106_pcm_open_1_capture,
1083         .close =       snd_ca0106_pcm_close_capture,
1084         .ioctl =       snd_pcm_lib_ioctl,
1085         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1086         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1087         .prepare =     snd_ca0106_pcm_prepare_capture,
1088         .trigger =     snd_ca0106_pcm_trigger_capture,
1089         .pointer =     snd_ca0106_pcm_pointer_capture,
1090 };
1091
1092 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1093         .open =        snd_ca0106_pcm_open_2_capture,
1094         .close =       snd_ca0106_pcm_close_capture,
1095         .ioctl =       snd_pcm_lib_ioctl,
1096         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1097         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1098         .prepare =     snd_ca0106_pcm_prepare_capture,
1099         .trigger =     snd_ca0106_pcm_trigger_capture,
1100         .pointer =     snd_ca0106_pcm_pointer_capture,
1101 };
1102
1103 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1104         .open =        snd_ca0106_pcm_open_3_capture,
1105         .close =       snd_ca0106_pcm_close_capture,
1106         .ioctl =       snd_pcm_lib_ioctl,
1107         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1108         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1109         .prepare =     snd_ca0106_pcm_prepare_capture,
1110         .trigger =     snd_ca0106_pcm_trigger_capture,
1111         .pointer =     snd_ca0106_pcm_pointer_capture,
1112 };
1113
1114 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1115         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1116         .close =        snd_ca0106_pcm_close_playback,
1117         .ioctl =        snd_pcm_lib_ioctl,
1118         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1119         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1120         .prepare =      snd_ca0106_pcm_prepare_playback,     
1121         .trigger =      snd_ca0106_pcm_trigger_playback,  
1122         .pointer =      snd_ca0106_pcm_pointer_playback, 
1123 };
1124
1125 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1126         .open =         snd_ca0106_pcm_open_playback_unknown,
1127         .close =        snd_ca0106_pcm_close_playback,
1128         .ioctl =        snd_pcm_lib_ioctl,
1129         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1130         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1131         .prepare =      snd_ca0106_pcm_prepare_playback,     
1132         .trigger =      snd_ca0106_pcm_trigger_playback,  
1133         .pointer =      snd_ca0106_pcm_pointer_playback, 
1134 };
1135
1136 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1137         .open =         snd_ca0106_pcm_open_playback_rear,
1138         .close =        snd_ca0106_pcm_close_playback,
1139         .ioctl =        snd_pcm_lib_ioctl,
1140         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1141                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1142         .prepare =      snd_ca0106_pcm_prepare_playback,     
1143         .trigger =      snd_ca0106_pcm_trigger_playback,  
1144         .pointer =      snd_ca0106_pcm_pointer_playback, 
1145 };
1146
1147
1148 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1149                                              unsigned short reg)
1150 {
1151         struct snd_ca0106 *emu = ac97->private_data;
1152         unsigned long flags;
1153         unsigned short val;
1154
1155         spin_lock_irqsave(&emu->emu_lock, flags);
1156         outb(reg, emu->port + AC97ADDRESS);
1157         val = inw(emu->port + AC97DATA);
1158         spin_unlock_irqrestore(&emu->emu_lock, flags);
1159         return val;
1160 }
1161
1162 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1163                                     unsigned short reg, unsigned short val)
1164 {
1165         struct snd_ca0106 *emu = ac97->private_data;
1166         unsigned long flags;
1167   
1168         spin_lock_irqsave(&emu->emu_lock, flags);
1169         outb(reg, emu->port + AC97ADDRESS);
1170         outw(val, emu->port + AC97DATA);
1171         spin_unlock_irqrestore(&emu->emu_lock, flags);
1172 }
1173
1174 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1175 {
1176         struct snd_ac97_bus *pbus;
1177         struct snd_ac97_template ac97;
1178         int err;
1179         static struct snd_ac97_bus_ops ops = {
1180                 .write = snd_ca0106_ac97_write,
1181                 .read = snd_ca0106_ac97_read,
1182         };
1183   
1184         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1185                 return err;
1186         pbus->no_vra = 1; /* we don't need VRA */
1187
1188         memset(&ac97, 0, sizeof(ac97));
1189         ac97.private_data = chip;
1190         ac97.scaps = AC97_SCAP_NO_SPDIF;
1191         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1192 }
1193
1194 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1195
1196 static int snd_ca0106_free(struct snd_ca0106 *chip)
1197 {
1198         if (chip->res_port != NULL) {
1199                 /* avoid access to already used hardware */
1200                 ca0106_stop_chip(chip);
1201         }
1202         if (chip->irq >= 0)
1203                 free_irq(chip->irq, chip);
1204         // release the data
1205 #if 1
1206         if (chip->buffer.area)
1207                 snd_dma_free_pages(&chip->buffer);
1208 #endif
1209
1210         // release the i/o port
1211         release_and_free_resource(chip->res_port);
1212
1213         pci_disable_device(chip->pci);
1214         kfree(chip);
1215         return 0;
1216 }
1217
1218 static int snd_ca0106_dev_free(struct snd_device *device)
1219 {
1220         struct snd_ca0106 *chip = device->device_data;
1221         return snd_ca0106_free(chip);
1222 }
1223
1224 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1225 {
1226         unsigned int status;
1227
1228         struct snd_ca0106 *chip = dev_id;
1229         int i;
1230         int mask;
1231         unsigned int stat76;
1232         struct snd_ca0106_channel *pchannel;
1233
1234         status = inl(chip->port + IPR);
1235         if (! status)
1236                 return IRQ_NONE;
1237
1238         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1239         /*
1240         snd_printk(KERN_DEBUG "interrupt status = 0x%08x, stat76=0x%08x\n",
1241                    status, stat76);
1242         snd_printk(KERN_DEBUG "ptr=0x%08x\n",
1243                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1244         */
1245         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1246         for(i = 0; i < 4; i++) {
1247                 pchannel = &(chip->playback_channels[i]);
1248                 if (stat76 & mask) {
1249 /* FIXME: Select the correct substream for period elapsed */
1250                         if(pchannel->use) {
1251                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1252                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1253                         }
1254                 }
1255                 //printk(KERN_INFO "channel=%p\n",pchannel);
1256                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1257                 mask <<= 1;
1258         }
1259         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1260         for(i = 0; i < 4; i++) {
1261                 pchannel = &(chip->capture_channels[i]);
1262                 if (stat76 & mask) {
1263 /* FIXME: Select the correct substream for period elapsed */
1264                         if(pchannel->use) {
1265                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1266                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1267                         }
1268                 }
1269                 //printk(KERN_INFO "channel=%p\n",pchannel);
1270                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1271                 mask <<= 1;
1272         }
1273
1274         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1275
1276         if (chip->midi.dev_id &&
1277             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1278                 if (chip->midi.interrupt)
1279                         chip->midi.interrupt(&chip->midi, status);
1280                 else
1281                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1282         }
1283
1284         // acknowledge the interrupt if necessary
1285         outl(status, chip->port+IPR);
1286
1287         return IRQ_HANDLED;
1288 }
1289
1290 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1291 {
1292         struct snd_pcm *pcm;
1293         struct snd_pcm_substream *substream;
1294         int err;
1295   
1296         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1297         if (err < 0)
1298                 return err;
1299   
1300         pcm->private_data = emu;
1301
1302         switch (device) {
1303         case 0:
1304           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1305           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1306           break;
1307         case 1:
1308           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1309           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1310           break;
1311         case 2:
1312           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1313           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1314           break;
1315         case 3:
1316           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1317           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1318           break;
1319         }
1320
1321         pcm->info_flags = 0;
1322         strcpy(pcm->name, "CA0106");
1323
1324         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1325             substream; 
1326             substream = substream->next) {
1327                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1328                                                          SNDRV_DMA_TYPE_DEV, 
1329                                                          snd_dma_pci_data(emu->pci), 
1330                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1331                         return err;
1332         }
1333
1334         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1335               substream; 
1336               substream = substream->next) {
1337                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1338                                                    SNDRV_DMA_TYPE_DEV, 
1339                                                    snd_dma_pci_data(emu->pci), 
1340                                                    64*1024, 64*1024)) < 0)
1341                         return err;
1342         }
1343   
1344         emu->pcm[device] = pcm;
1345   
1346         return 0;
1347 }
1348
1349 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1350 static unsigned int spi_dac_init[] = {
1351         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1352         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1353         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1354         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1355         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1356         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1357         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1358         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1359         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1360         SPI_REG(9,              0x00),
1361         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1362         SPI_REG(12,             0x00),
1363         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1364         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1365         SPI_REG(SPI_DACD4_REG,  0x00),
1366 };
1367
1368 static unsigned int i2c_adc_init[][2] = {
1369         { 0x17, 0x00 }, /* Reset */
1370         { 0x07, 0x00 }, /* Timeout */
1371         { 0x0b, 0x22 },  /* Interface control */
1372         { 0x0c, 0x22 },  /* Master mode control */
1373         { 0x0d, 0x08 },  /* Powerdown control */
1374         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1375         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1376         { 0x10, 0x7b },  /* ALC Control 1 */
1377         { 0x11, 0x00 },  /* ALC Control 2 */
1378         { 0x12, 0x32 },  /* ALC Control 3 */
1379         { 0x13, 0x00 },  /* Noise gate control */
1380         { 0x14, 0xa6 },  /* Limiter control */
1381         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1382 };
1383
1384 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1385 {
1386         int ch;
1387         unsigned int def_bits;
1388
1389         outl(0, chip->port + INTE);
1390
1391         /*
1392          *  Init to 0x02109204 :
1393          *  Clock accuracy    = 0     (1000ppm)
1394          *  Sample Rate       = 2     (48kHz)
1395          *  Audio Channel     = 1     (Left of 2)
1396          *  Source Number     = 0     (Unspecified)
1397          *  Generation Status = 1     (Original for Cat Code 12)
1398          *  Cat Code          = 12    (Digital Signal Mixer)
1399          *  Mode              = 0     (Mode 0)
1400          *  Emphasis          = 0     (None)
1401          *  CP                = 1     (Copyright unasserted)
1402          *  AN                = 0     (Audio data)
1403          *  P                 = 0     (Consumer)
1404          */
1405         def_bits =
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         if (!resume) {
1411                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1412                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1413                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1414                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1415         }
1416         /* Only SPCS1 has been tested */
1417         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1418         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1419         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1420         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1421
1422         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1423         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1424
1425         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1426         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1427         outw(0x8000, chip->port + AC97DATA);
1428 #if 0 /* FIXME: what are these? */
1429         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1430         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1431         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1432         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1433 #endif
1434
1435         /* OSS drivers set this. */
1436         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1437
1438         /* Analog or Digital output */
1439         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1440         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1441          * Use 0x000f0000 for surround71
1442          */
1443         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1444
1445         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1446         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1447         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1448
1449         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1450         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1451         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1452          * Only lower 16 bits matter.
1453          */
1454         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1455         /* SPDIF IN Volume */
1456         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1457         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1458         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1459
1460         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1461         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1462         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1463         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1464
1465         for (ch = 0; ch < 4; ch++) {
1466                 /* Only high 16 bits matter */
1467                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1468                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1469 #if 0 /* Mute */
1470                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1471                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1472                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1473                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1474 #endif
1475         }
1476         if (chip->details->i2c_adc == 1) {
1477                 /* Select MIC, Line in, TAD in, AUX in */
1478                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1479                 /* Default to CAPTURE_SOURCE to i2s in */
1480                 if (!resume)
1481                         chip->capture_source = 3;
1482         } else if (chip->details->ac97 == 1) {
1483                 /* Default to AC97 in */
1484                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1485                 /* Default to CAPTURE_SOURCE to AC97 in */
1486                 if (!resume)
1487                         chip->capture_source = 4;
1488         } else {
1489                 /* Select MIC, Line in, TAD in, AUX in */
1490                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1491                 /* Default to Set CAPTURE_SOURCE to i2s in */
1492                 if (!resume)
1493                         chip->capture_source = 3;
1494         }
1495
1496         if (chip->details->gpio_type == 2) {
1497                 /* The SB0438 use GPIO differently. */
1498                 /* FIXME: Still need to find out what the other GPIO bits do.
1499                  * E.g. For digital spdif out.
1500                  */
1501                 outl(0x0, chip->port+GPIO);
1502                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1503                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1504         } else if (chip->details->gpio_type == 1) {
1505                 /* The SB0410 and SB0413 use GPIO differently. */
1506                 /* FIXME: Still need to find out what the other GPIO bits do.
1507                  * E.g. For digital spdif out.
1508                  */
1509                 outl(0x0, chip->port+GPIO);
1510                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1511                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1512         } else {
1513                 outl(0x0, chip->port+GPIO);
1514                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1515                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1516         }
1517         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1518
1519         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1520         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1521         /* outl(0x00001409, chip->port+HCFG); */
1522         /* outl(0x00000009, chip->port+HCFG); */
1523         /* AC97 2.0, Enable outputs. */
1524         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1525
1526         if (chip->details->i2c_adc == 1) {
1527                 /* The SB0410 and SB0413 use I2C to control ADC. */
1528                 int size, n;
1529
1530                 size = ARRAY_SIZE(i2c_adc_init);
1531                 /* snd_printk(KERN_DEBUG "I2C:array size=0x%x\n", size); */
1532                 for (n = 0; n < size; n++)
1533                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1534                                              i2c_adc_init[n][1]);
1535                 for (n = 0; n < 4; n++) {
1536                         chip->i2c_capture_volume[n][0] = 0xcf;
1537                         chip->i2c_capture_volume[n][1] = 0xcf;
1538                 }
1539                 chip->i2c_capture_source = 2; /* Line in */
1540                 /* Enable Line-in capture. MIC in currently untested. */
1541                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1542         }
1543
1544         if (chip->details->spi_dac == 1) {
1545                 /* The SB0570 use SPI to control DAC. */
1546                 int size, n;
1547
1548                 size = ARRAY_SIZE(spi_dac_init);
1549                 for (n = 0; n < size; n++) {
1550                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1551
1552                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1553                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1554                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1555                 }
1556         }
1557 }
1558
1559 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1560 {
1561         /* disable interrupts */
1562         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1563         outl(0, chip->port + INTE);
1564         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1565         udelay(1000);
1566         /* disable audio */
1567         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1568         outl(0, chip->port + HCFG);
1569         /* FIXME: We need to stop and DMA transfers here.
1570          *        But as I am not sure how yet, we cannot from the dma pages.
1571          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1572          */
1573 }
1574
1575 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1576                                          struct pci_dev *pci,
1577                                          struct snd_ca0106 **rchip)
1578 {
1579         struct snd_ca0106 *chip;
1580         struct snd_ca0106_details *c;
1581         int err;
1582         static struct snd_device_ops ops = {
1583                 .dev_free = snd_ca0106_dev_free,
1584         };
1585
1586         *rchip = NULL;
1587
1588         err = pci_enable_device(pci);
1589         if (err < 0)
1590                 return err;
1591         if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
1592             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1593                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1594                 pci_disable_device(pci);
1595                 return -ENXIO;
1596         }
1597
1598         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1599         if (chip == NULL) {
1600                 pci_disable_device(pci);
1601                 return -ENOMEM;
1602         }
1603
1604         chip->card = card;
1605         chip->pci = pci;
1606         chip->irq = -1;
1607
1608         spin_lock_init(&chip->emu_lock);
1609
1610         chip->port = pci_resource_start(pci, 0);
1611         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1612         if (!chip->res_port) {
1613                 snd_ca0106_free(chip);
1614                 printk(KERN_ERR "cannot allocate the port\n");
1615                 return -EBUSY;
1616         }
1617
1618         if (request_irq(pci->irq, snd_ca0106_interrupt,
1619                         IRQF_SHARED, "snd_ca0106", chip)) {
1620                 snd_ca0106_free(chip);
1621                 printk(KERN_ERR "cannot grab irq\n");
1622                 return -EBUSY;
1623         }
1624         chip->irq = pci->irq;
1625
1626         /* This stores the periods table. */
1627         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1628                                 1024, &chip->buffer) < 0) {
1629                 snd_ca0106_free(chip);
1630                 return -ENOMEM;
1631         }
1632
1633         pci_set_master(pci);
1634         /* read serial */
1635         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1636         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1637         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1638                chip->model, pci->revision, chip->serial);
1639         strcpy(card->driver, "CA0106");
1640         strcpy(card->shortname, "CA0106");
1641
1642         for (c = ca0106_chip_details; c->serial; c++) {
1643                 if (subsystem[dev]) {
1644                         if (c->serial == subsystem[dev])
1645                                 break;
1646                 } else if (c->serial == chip->serial)
1647                         break;
1648         }
1649         chip->details = c;
1650         if (subsystem[dev]) {
1651                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1652                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1653                        c->name, chip->serial, subsystem[dev]);
1654         }
1655
1656         sprintf(card->longname, "%s at 0x%lx irq %i",
1657                 c->name, chip->port, chip->irq);
1658
1659         ca0106_init_chip(chip, 0);
1660
1661         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1662         if (err < 0) {
1663                 snd_ca0106_free(chip);
1664                 return err;
1665         }
1666         *rchip = chip;
1667         return 0;
1668 }
1669
1670
1671 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1672 {
1673         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1674 }
1675
1676 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1677 {
1678         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1679 }
1680
1681 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1682 {
1683         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1684                                                   midi->port + idx, 0);
1685 }
1686
1687 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1688 {
1689         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1690 }
1691
1692 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1693 {
1694         return ((struct snd_ca0106 *)dev_id)->card;
1695 }
1696
1697 static int ca0106_dev_id_port(void *dev_id)
1698 {
1699         return ((struct snd_ca0106 *)dev_id)->port;
1700 }
1701
1702 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1703 {
1704         struct snd_ca_midi *midi;
1705         char *name;
1706         int err;
1707
1708         if (channel == CA0106_MIDI_CHAN_B) {
1709                 name = "CA0106 MPU-401 (UART) B";
1710                 midi =  &chip->midi2;
1711                 midi->tx_enable = INTE_MIDI_TX_B;
1712                 midi->rx_enable = INTE_MIDI_RX_B;
1713                 midi->ipr_tx = IPR_MIDI_TX_B;
1714                 midi->ipr_rx = IPR_MIDI_RX_B;
1715                 midi->port = MIDI_UART_B_DATA;
1716         } else {
1717                 name = "CA0106 MPU-401 (UART)";
1718                 midi =  &chip->midi;
1719                 midi->tx_enable = INTE_MIDI_TX_A;
1720                 midi->rx_enable = INTE_MIDI_TX_B;
1721                 midi->ipr_tx = IPR_MIDI_TX_A;
1722                 midi->ipr_rx = IPR_MIDI_RX_A;
1723                 midi->port = MIDI_UART_A_DATA;
1724         }
1725
1726         midi->reset = CA0106_MPU401_RESET;
1727         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1728         midi->ack = CA0106_MPU401_ACK;
1729
1730         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1731         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1732
1733         midi->channel = channel;
1734
1735         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1736         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1737
1738         midi->read = ca0106_midi_read;
1739         midi->write = ca0106_midi_write;
1740
1741         midi->get_dev_id_card = ca0106_dev_id_card;
1742         midi->get_dev_id_port = ca0106_dev_id_port;
1743
1744         midi->dev_id = chip;
1745         
1746         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1747                 return err;
1748
1749         return 0;
1750 }
1751
1752
1753 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1754                                         const struct pci_device_id *pci_id)
1755 {
1756         static int dev;
1757         struct snd_card *card;
1758         struct snd_ca0106 *chip;
1759         int i, err;
1760
1761         if (dev >= SNDRV_CARDS)
1762                 return -ENODEV;
1763         if (!enable[dev]) {
1764                 dev++;
1765                 return -ENOENT;
1766         }
1767
1768         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1769         if (err < 0)
1770                 return err;
1771
1772         err = snd_ca0106_create(dev, card, pci, &chip);
1773         if (err < 0)
1774                 goto error;
1775         card->private_data = chip;
1776
1777         for (i = 0; i < 4; i++) {
1778                 err = snd_ca0106_pcm(chip, i);
1779                 if (err < 0)
1780                         goto error;
1781         }
1782
1783         if (chip->details->ac97 == 1) {
1784                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1785                 err = snd_ca0106_ac97(chip);
1786                 if (err < 0)
1787                         goto error;
1788         }
1789         err = snd_ca0106_mixer(chip);
1790         if (err < 0)
1791                 goto error;
1792
1793         snd_printdd("ca0106: probe for MIDI channel A ...");
1794         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1795         if (err < 0)
1796                 goto error;
1797         snd_printdd(" done.\n");
1798
1799 #ifdef CONFIG_PROC_FS
1800         snd_ca0106_proc_init(chip);
1801 #endif
1802
1803         snd_card_set_dev(card, &pci->dev);
1804
1805         err = snd_card_register(card);
1806         if (err < 0)
1807                 goto error;
1808
1809         pci_set_drvdata(pci, card);
1810         dev++;
1811         return 0;
1812
1813  error:
1814         snd_card_free(card);
1815         return err;
1816 }
1817
1818 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1819 {
1820         snd_card_free(pci_get_drvdata(pci));
1821         pci_set_drvdata(pci, NULL);
1822 }
1823
1824 #ifdef CONFIG_PM
1825 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1826 {
1827         struct snd_card *card = pci_get_drvdata(pci);
1828         struct snd_ca0106 *chip = card->private_data;
1829         int i;
1830
1831         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1832         for (i = 0; i < 4; i++)
1833                 snd_pcm_suspend_all(chip->pcm[i]);
1834         if (chip->details->ac97)
1835                 snd_ac97_suspend(chip->ac97);
1836         snd_ca0106_mixer_suspend(chip);
1837
1838         ca0106_stop_chip(chip);
1839
1840         pci_disable_device(pci);
1841         pci_save_state(pci);
1842         pci_set_power_state(pci, pci_choose_state(pci, state));
1843         return 0;
1844 }
1845
1846 static int snd_ca0106_resume(struct pci_dev *pci)
1847 {
1848         struct snd_card *card = pci_get_drvdata(pci);
1849         struct snd_ca0106 *chip = card->private_data;
1850         int i;
1851
1852         pci_set_power_state(pci, PCI_D0);
1853         pci_restore_state(pci);
1854
1855         if (pci_enable_device(pci) < 0) {
1856                 snd_card_disconnect(card);
1857                 return -EIO;
1858         }
1859
1860         pci_set_master(pci);
1861
1862         ca0106_init_chip(chip, 1);
1863
1864         if (chip->details->ac97)
1865                 snd_ac97_resume(chip->ac97);
1866         snd_ca0106_mixer_resume(chip);
1867         if (chip->details->spi_dac) {
1868                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1869                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1870         }
1871
1872         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1873         return 0;
1874 }
1875 #endif
1876
1877 // PCI IDs
1878 static struct pci_device_id snd_ca0106_ids[] = {
1879         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1880         { 0, }
1881 };
1882 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1883
1884 // pci_driver definition
1885 static struct pci_driver driver = {
1886         .name = "CA0106",
1887         .id_table = snd_ca0106_ids,
1888         .probe = snd_ca0106_probe,
1889         .remove = __devexit_p(snd_ca0106_remove),
1890 #ifdef CONFIG_PM
1891         .suspend = snd_ca0106_suspend,
1892         .resume = snd_ca0106_resume,
1893 #endif
1894 };
1895
1896 // initialization of the module
1897 static int __init alsa_card_ca0106_init(void)
1898 {
1899         return pci_register_driver(&driver);
1900 }
1901
1902 // clean up the module
1903 static void __exit alsa_card_ca0106_exit(void)
1904 {
1905         pci_unregister_driver(&driver);
1906 }
1907
1908 module_init(alsa_card_ca0106_init)
1909 module_exit(alsa_card_ca0106_exit)