[ALSA] Remove redundant NULL checks before kfree
[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: 0.0.23
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  *
83  *  BUGS:
84  *    Some stability problems when unloading the snd-ca0106 kernel module.
85  *    --
86  *
87  *  TODO:
88  *    4 Capture channels, only one implemented so far.
89  *    Other capture rates apart from 48khz not implemented.
90  *    MIDI
91  *    --
92  *  GENERAL INFO:
93  *    Model: SB0310
94  *    P17 Chip: CA0106-DAT
95  *    AC97 Codec: STAC 9721
96  *    ADC: Philips 1361T (Stereo 24bit)
97  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
98  *
99  *  GENERAL INFO:
100  *    Model: SB0410
101  *    P17 Chip: CA0106-DAT
102  *    AC97 Codec: None
103  *    ADC: WM8775EDS (4 Channel)
104  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
105  *    SPDIF Out control switches between Mic in and SPDIF out.
106  *    No sound out or mic input working yet.
107  * 
108  *  GENERAL INFO:
109  *    Model: SB0413
110  *    P17 Chip: CA0106-DAT
111  *    AC97 Codec: None.
112  *    ADC: Unknown
113  *    DAC: Unknown
114  *    Trying to handle it like the SB0410.
115  *
116  *  This code was initally based on code from ALSA's emu10k1x.c which is:
117  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
118  *
119  *   This program is free software; you can redistribute it and/or modify
120  *   it under the terms of the GNU General Public License as published by
121  *   the Free Software Foundation; either version 2 of the License, or
122  *   (at your option) any later version.
123  *
124  *   This program is distributed in the hope that it will be useful,
125  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
126  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
127  *   GNU General Public License for more details.
128  *
129  *   You should have received a copy of the GNU General Public License
130  *   along with this program; if not, write to the Free Software
131  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
132  *
133  */
134 #include <sound/driver.h>
135 #include <linux/delay.h>
136 #include <linux/init.h>
137 #include <linux/interrupt.h>
138 #include <linux/pci.h>
139 #include <linux/slab.h>
140 #include <linux/moduleparam.h>
141 #include <linux/dma-mapping.h>
142 #include <sound/core.h>
143 #include <sound/initval.h>
144 #include <sound/pcm.h>
145 #include <sound/ac97_codec.h>
146 #include <sound/info.h>
147
148 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
149 MODULE_DESCRIPTION("CA0106");
150 MODULE_LICENSE("GPL");
151 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
152
153 // module parameters (see "Module Parameters")
154 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
155 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
156 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
157
158 module_param_array(index, int, NULL, 0444);
159 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
160 module_param_array(id, charp, NULL, 0444);
161 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
162 module_param_array(enable, bool, NULL, 0444);
163 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
164
165 #include "ca0106.h"
166
167 static ca0106_details_t ca0106_chip_details[] = {
168          /* AudigyLS[SB0310] */
169          { .serial = 0x10021102,
170            .name   = "AudigyLS [SB0310]",
171            .ac97   = 1 } , 
172          /* Unknown AudigyLS that also says SB0310 on it */
173          { .serial = 0x10051102,
174            .name   = "AudigyLS [SB0310b]",
175            .ac97   = 1 } ,
176          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
177          { .serial = 0x10061102,
178            .name   = "Live! 7.1 24bit [SB0410]",
179            .gpio_type = 1,
180            .i2c_adc = 1 } ,
181          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
182          { .serial = 0x10071102,
183            .name   = "Live! 7.1 24bit [SB0413]",
184            .gpio_type = 1,
185            .i2c_adc = 1 } ,
186          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
187          { .serial = 0x10091462,
188            .name   = "MSI K8N Diamond MB [SB0438]",
189            .gpio_type = 1,
190            .i2c_adc = 1 } ,
191          { .serial = 0,
192            .name   = "AudigyLS [Unknown]" }
193 };
194
195 /* hardware definition */
196 static snd_pcm_hardware_t snd_ca0106_playback_hw = {
197         .info =                 (SNDRV_PCM_INFO_MMAP | 
198                                  SNDRV_PCM_INFO_INTERLEAVED |
199                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
200                                  SNDRV_PCM_INFO_MMAP_VALID),
201         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
202         .rates =                SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
203         .rate_min =             48000,
204         .rate_max =             192000,
205         .channels_min =         2,  //1,
206         .channels_max =         2,  //6,
207         .buffer_bytes_max =     ((65536 - 64) * 8),
208         .period_bytes_min =     64,
209         .period_bytes_max =     (65536 - 64),
210         .periods_min =          2,
211         .periods_max =          8,
212         .fifo_size =            0,
213 };
214
215 static snd_pcm_hardware_t snd_ca0106_capture_hw = {
216         .info =                 (SNDRV_PCM_INFO_MMAP | 
217                                  SNDRV_PCM_INFO_INTERLEAVED |
218                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
219                                  SNDRV_PCM_INFO_MMAP_VALID),
220         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
221         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
222         .rate_min =             44100,
223         .rate_max =             192000,
224         .channels_min =         2,
225         .channels_max =         2,
226         .buffer_bytes_max =     ((65536 - 64) * 8),
227         .period_bytes_min =     64,
228         .period_bytes_max =     (65536 - 64),
229         .periods_min =          2,
230         .periods_max =          2,
231         .fifo_size =            0,
232 };
233
234 unsigned int snd_ca0106_ptr_read(ca0106_t * emu, 
235                                           unsigned int reg, 
236                                           unsigned int chn)
237 {
238         unsigned long flags;
239         unsigned int regptr, val;
240   
241         regptr = (reg << 16) | chn;
242
243         spin_lock_irqsave(&emu->emu_lock, flags);
244         outl(regptr, emu->port + PTR);
245         val = inl(emu->port + DATA);
246         spin_unlock_irqrestore(&emu->emu_lock, flags);
247         return val;
248 }
249
250 void snd_ca0106_ptr_write(ca0106_t *emu, 
251                                    unsigned int reg, 
252                                    unsigned int chn, 
253                                    unsigned int data)
254 {
255         unsigned int regptr;
256         unsigned long flags;
257
258         regptr = (reg << 16) | chn;
259
260         spin_lock_irqsave(&emu->emu_lock, flags);
261         outl(regptr, emu->port + PTR);
262         outl(data, emu->port + DATA);
263         spin_unlock_irqrestore(&emu->emu_lock, flags);
264 }
265
266 int snd_ca0106_i2c_write(ca0106_t *emu,
267                                 u32 reg,
268                                 u32 value)
269 {
270         u32 tmp;
271         int timeout=0;
272         int status;
273         int retry;
274         if ((reg > 0x7f) || (value > 0x1ff))
275         {
276                 snd_printk("i2c_write: invalid values.\n");
277                 return -EINVAL;
278         }
279
280         tmp = reg << 25 | value << 16;
281         /* Not sure what this I2C channel controls. */
282         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
283
284         /* This controls the I2C connected to the WM8775 ADC Codec */
285         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
286
287         for(retry=0;retry<10;retry++)
288         {
289                 /* Send the data to i2c */
290                 tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
291                 tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
292                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
293                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
294
295                 /* Wait till the transaction ends */
296                 while(1)
297                 {
298                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
299                         //snd_printk("I2C:status=0x%x\n", status);
300                         timeout++;
301                         if((status & I2C_A_ADC_START)==0)
302                                 break;
303
304                         if(timeout>1000)
305                                 break;
306                 }
307                 //Read back and see if the transaction is successful
308                 if((status & I2C_A_ADC_ABORT)==0)
309                         break;
310         }
311
312         if(retry==10)
313         {
314                 snd_printk("Writing to ADC failed!\n");
315                 return -EINVAL;
316         }
317     
318         return 0;
319 }
320
321
322 static void snd_ca0106_intr_enable(ca0106_t *emu, unsigned int intrenb)
323 {
324         unsigned long flags;
325         unsigned int enable;
326   
327         spin_lock_irqsave(&emu->emu_lock, flags);
328         enable = inl(emu->port + INTE) | intrenb;
329         outl(enable, emu->port + INTE);
330         spin_unlock_irqrestore(&emu->emu_lock, flags);
331 }
332
333 static void snd_ca0106_pcm_free_substream(snd_pcm_runtime_t *runtime)
334 {
335         kfree(runtime->private_data);
336 }
337
338 /* open_playback callback */
339 static int snd_ca0106_pcm_open_playback_channel(snd_pcm_substream_t *substream, int channel_id)
340 {
341         ca0106_t *chip = snd_pcm_substream_chip(substream);
342         ca0106_channel_t *channel = &(chip->playback_channels[channel_id]);
343         ca0106_pcm_t *epcm;
344         snd_pcm_runtime_t *runtime = substream->runtime;
345         int err;
346
347         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
348
349         if (epcm == NULL)
350                 return -ENOMEM;
351         epcm->emu = chip;
352         epcm->substream = substream;
353         epcm->channel_id=channel_id;
354   
355         runtime->private_data = epcm;
356         runtime->private_free = snd_ca0106_pcm_free_substream;
357   
358         runtime->hw = snd_ca0106_playback_hw;
359
360         channel->emu = chip;
361         channel->number = channel_id;
362
363         channel->use=1;
364         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
365         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
366         channel->epcm=epcm;
367         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
368                 return err;
369         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
370                 return err;
371         return 0;
372 }
373
374 /* close callback */
375 static int snd_ca0106_pcm_close_playback(snd_pcm_substream_t *substream)
376 {
377         ca0106_t *chip = snd_pcm_substream_chip(substream);
378         snd_pcm_runtime_t *runtime = substream->runtime;
379         ca0106_pcm_t *epcm = runtime->private_data;
380         chip->playback_channels[epcm->channel_id].use=0;
381 /* FIXME: maybe zero others */
382         return 0;
383 }
384
385 static int snd_ca0106_pcm_open_playback_front(snd_pcm_substream_t *substream)
386 {
387         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
388 }
389
390 static int snd_ca0106_pcm_open_playback_center_lfe(snd_pcm_substream_t *substream)
391 {
392         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
393 }
394
395 static int snd_ca0106_pcm_open_playback_unknown(snd_pcm_substream_t *substream)
396 {
397         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
398 }
399
400 static int snd_ca0106_pcm_open_playback_rear(snd_pcm_substream_t *substream)
401 {
402         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
403 }
404
405 /* open_capture callback */
406 static int snd_ca0106_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
407 {
408         ca0106_t *chip = snd_pcm_substream_chip(substream);
409         ca0106_channel_t *channel = &(chip->capture_channels[channel_id]);
410         ca0106_pcm_t *epcm;
411         snd_pcm_runtime_t *runtime = substream->runtime;
412         int err;
413
414         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
415         if (epcm == NULL) {
416                 snd_printk("open_capture_channel: failed epcm alloc\n");
417                 return -ENOMEM;
418         }
419         epcm->emu = chip;
420         epcm->substream = substream;
421         epcm->channel_id=channel_id;
422   
423         runtime->private_data = epcm;
424         runtime->private_free = snd_ca0106_pcm_free_substream;
425   
426         runtime->hw = snd_ca0106_capture_hw;
427
428         channel->emu = chip;
429         channel->number = channel_id;
430
431         channel->use=1;
432         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
433         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
434         channel->epcm=epcm;
435         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
436                 return err;
437         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
438         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
439                 return err;
440         return 0;
441 }
442
443 /* close callback */
444 static int snd_ca0106_pcm_close_capture(snd_pcm_substream_t *substream)
445 {
446         ca0106_t *chip = snd_pcm_substream_chip(substream);
447         snd_pcm_runtime_t *runtime = substream->runtime;
448         ca0106_pcm_t *epcm = runtime->private_data;
449         chip->capture_channels[epcm->channel_id].use=0;
450 /* FIXME: maybe zero others */
451         return 0;
452 }
453
454 static int snd_ca0106_pcm_open_0_capture(snd_pcm_substream_t *substream)
455 {
456         return snd_ca0106_pcm_open_capture_channel(substream, 0);
457 }
458
459 static int snd_ca0106_pcm_open_1_capture(snd_pcm_substream_t *substream)
460 {
461         return snd_ca0106_pcm_open_capture_channel(substream, 1);
462 }
463
464 static int snd_ca0106_pcm_open_2_capture(snd_pcm_substream_t *substream)
465 {
466         return snd_ca0106_pcm_open_capture_channel(substream, 2);
467 }
468
469 static int snd_ca0106_pcm_open_3_capture(snd_pcm_substream_t *substream)
470 {
471         return snd_ca0106_pcm_open_capture_channel(substream, 3);
472 }
473
474 /* hw_params callback */
475 static int snd_ca0106_pcm_hw_params_playback(snd_pcm_substream_t *substream,
476                                       snd_pcm_hw_params_t * hw_params)
477 {
478         return snd_pcm_lib_malloc_pages(substream,
479                                         params_buffer_bytes(hw_params));
480 }
481
482 /* hw_free callback */
483 static int snd_ca0106_pcm_hw_free_playback(snd_pcm_substream_t *substream)
484 {
485         return snd_pcm_lib_free_pages(substream);
486 }
487
488 /* hw_params callback */
489 static int snd_ca0106_pcm_hw_params_capture(snd_pcm_substream_t *substream,
490                                       snd_pcm_hw_params_t * hw_params)
491 {
492         return snd_pcm_lib_malloc_pages(substream,
493                                         params_buffer_bytes(hw_params));
494 }
495
496 /* hw_free callback */
497 static int snd_ca0106_pcm_hw_free_capture(snd_pcm_substream_t *substream)
498 {
499         return snd_pcm_lib_free_pages(substream);
500 }
501
502 /* prepare playback callback */
503 static int snd_ca0106_pcm_prepare_playback(snd_pcm_substream_t *substream)
504 {
505         ca0106_t *emu = snd_pcm_substream_chip(substream);
506         snd_pcm_runtime_t *runtime = substream->runtime;
507         ca0106_pcm_t *epcm = runtime->private_data;
508         int channel = epcm->channel_id;
509         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
510         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
511         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
512         u32 hcfg_set = 0x00000000;
513         u32 hcfg;
514         u32 reg40_mask = 0x30000 << (channel<<1);
515         u32 reg40_set = 0;
516         u32 reg40;
517         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
518         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
519         u32 reg71_set = 0;
520         u32 reg71;
521         int i;
522         
523         //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));
524         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
525         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
526         /* Rate can be set per channel. */
527         /* reg40 control host to fifo */
528         /* reg71 controls DAC rate. */
529         switch (runtime->rate) {
530         case 44100:
531                 reg40_set = 0x10000 << (channel<<1);
532                 reg71_set = 0x01010000; 
533                 break;
534         case 48000:
535                 reg40_set = 0;
536                 reg71_set = 0; 
537                 break;
538         case 96000:
539                 reg40_set = 0x20000 << (channel<<1);
540                 reg71_set = 0x02020000; 
541                 break;
542         case 192000:
543                 reg40_set = 0x30000 << (channel<<1);
544                 reg71_set = 0x03030000; 
545                 break;
546         default:
547                 reg40_set = 0;
548                 reg71_set = 0; 
549                 break;
550         }
551         /* Format is a global setting */
552         /* FIXME: Only let the first channel accessed set this. */
553         switch (runtime->format) {
554         case SNDRV_PCM_FORMAT_S16_LE:
555                 hcfg_set = 0;
556                 break;
557         case SNDRV_PCM_FORMAT_S32_LE:
558                 hcfg_set = HCFG_PLAYBACK_S32_LE;
559                 break;
560         default:
561                 hcfg_set = 0;
562                 break;
563         }
564         hcfg = inl(emu->port + HCFG) ;
565         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
566         outl(hcfg, emu->port + HCFG);
567         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
568         reg40 = (reg40 & ~reg40_mask) | reg40_set;
569         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
570         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
571         reg71 = (reg71 & ~reg71_mask) | reg71_set;
572         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
573
574         /* FIXME: Check emu->buffer.size before actually writing to it. */
575         for(i=0; i < runtime->periods; i++) {
576                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
577                 table_base[(i*2)+1]=period_size_bytes<<16;
578         }
579  
580         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
581         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
582         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
583         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
584         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
585         /* FIXME  test what 0 bytes does. */
586         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
587         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
588         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
589         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
590         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
591 #if 0
592         snd_ca0106_ptr_write(emu, SPCS0, 0,
593                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
594                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
595                                SPCS_GENERATIONSTATUS | 0x00001200 |
596                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
597         }
598 #endif
599
600         return 0;
601 }
602
603 /* prepare capture callback */
604 static int snd_ca0106_pcm_prepare_capture(snd_pcm_substream_t *substream)
605 {
606         ca0106_t *emu = snd_pcm_substream_chip(substream);
607         snd_pcm_runtime_t *runtime = substream->runtime;
608         ca0106_pcm_t *epcm = runtime->private_data;
609         int channel = epcm->channel_id;
610         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
611         u32 hcfg_set = 0x00000000;
612         u32 hcfg;
613         u32 over_sampling=0x2;
614         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
615         u32 reg71_set = 0;
616         u32 reg71;
617         
618         //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));
619         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
620         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
621         /* reg71 controls ADC rate. */
622         switch (runtime->rate) {
623         case 44100:
624                 reg71_set = 0x00004000;
625                 break;
626         case 48000:
627                 reg71_set = 0; 
628                 break;
629         case 96000:
630                 reg71_set = 0x00008000;
631                 over_sampling=0xa;
632                 break;
633         case 192000:
634                 reg71_set = 0x0000c000; 
635                 over_sampling=0xa;
636                 break;
637         default:
638                 reg71_set = 0; 
639                 break;
640         }
641         /* Format is a global setting */
642         /* FIXME: Only let the first channel accessed set this. */
643         switch (runtime->format) {
644         case SNDRV_PCM_FORMAT_S16_LE:
645                 hcfg_set = 0;
646                 break;
647         case SNDRV_PCM_FORMAT_S32_LE:
648                 hcfg_set = HCFG_CAPTURE_S32_LE;
649                 break;
650         default:
651                 hcfg_set = 0;
652                 break;
653         }
654         hcfg = inl(emu->port + HCFG) ;
655         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
656         outl(hcfg, emu->port + HCFG);
657         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
658         reg71 = (reg71 & ~reg71_mask) | reg71_set;
659         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
660         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
661                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
662         }
663
664
665         //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));
666         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
667         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
668         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
669         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
670
671         return 0;
672 }
673
674 /* trigger_playback callback */
675 static int snd_ca0106_pcm_trigger_playback(snd_pcm_substream_t *substream,
676                                     int cmd)
677 {
678         ca0106_t *emu = snd_pcm_substream_chip(substream);
679         snd_pcm_runtime_t *runtime;
680         ca0106_pcm_t *epcm;
681         int channel;
682         int result = 0;
683         struct list_head *pos;
684         snd_pcm_substream_t *s;
685         u32 basic = 0;
686         u32 extended = 0;
687         int running=0;
688
689         switch (cmd) {
690         case SNDRV_PCM_TRIGGER_START:
691                 running=1;
692                 break;
693         case SNDRV_PCM_TRIGGER_STOP:
694         default:
695                 running=0;
696                 break;
697         }
698         snd_pcm_group_for_each(pos, substream) {
699                 s = snd_pcm_group_substream_entry(pos);
700                 runtime = s->runtime;
701                 epcm = runtime->private_data;
702                 channel = epcm->channel_id;
703                 //snd_printk("channel=%d\n",channel);
704                 epcm->running = running;
705                 basic |= (0x1<<channel);
706                 extended |= (0x10<<channel);
707                 snd_pcm_trigger_done(s, substream);
708         }
709         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
710
711         switch (cmd) {
712         case SNDRV_PCM_TRIGGER_START:
713                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
714                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
715                 break;
716         case SNDRV_PCM_TRIGGER_STOP:
717                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
718                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
719                 break;
720         default:
721                 result = -EINVAL;
722                 break;
723         }
724         return result;
725 }
726
727 /* trigger_capture callback */
728 static int snd_ca0106_pcm_trigger_capture(snd_pcm_substream_t *substream,
729                                     int cmd)
730 {
731         ca0106_t *emu = snd_pcm_substream_chip(substream);
732         snd_pcm_runtime_t *runtime = substream->runtime;
733         ca0106_pcm_t *epcm = runtime->private_data;
734         int channel = epcm->channel_id;
735         int result = 0;
736
737         switch (cmd) {
738         case SNDRV_PCM_TRIGGER_START:
739                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
740                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
741                 epcm->running = 1;
742                 break;
743         case SNDRV_PCM_TRIGGER_STOP:
744                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
745                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
746                 epcm->running = 0;
747                 break;
748         default:
749                 result = -EINVAL;
750                 break;
751         }
752         return result;
753 }
754
755 /* pointer_playback callback */
756 static snd_pcm_uframes_t
757 snd_ca0106_pcm_pointer_playback(snd_pcm_substream_t *substream)
758 {
759         ca0106_t *emu = snd_pcm_substream_chip(substream);
760         snd_pcm_runtime_t *runtime = substream->runtime;
761         ca0106_pcm_t *epcm = runtime->private_data;
762         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
763         int channel = epcm->channel_id;
764
765         if (!epcm->running)
766                 return 0;
767
768         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
769         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
770         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
771         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
772         ptr2 = bytes_to_frames(runtime, ptr1);
773         ptr2+= (ptr4 >> 3) * runtime->period_size;
774         ptr=ptr2;
775         if (ptr >= runtime->buffer_size)
776                 ptr -= runtime->buffer_size;
777         //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);
778
779         return ptr;
780 }
781
782 /* pointer_capture callback */
783 static snd_pcm_uframes_t
784 snd_ca0106_pcm_pointer_capture(snd_pcm_substream_t *substream)
785 {
786         ca0106_t *emu = snd_pcm_substream_chip(substream);
787         snd_pcm_runtime_t *runtime = substream->runtime;
788         ca0106_pcm_t *epcm = runtime->private_data;
789         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
790         int channel = channel=epcm->channel_id;
791
792         if (!epcm->running)
793                 return 0;
794
795         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
796         ptr2 = bytes_to_frames(runtime, ptr1);
797         ptr=ptr2;
798         if (ptr >= runtime->buffer_size)
799                 ptr -= runtime->buffer_size;
800         //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);
801
802         return ptr;
803 }
804
805 /* operators */
806 static snd_pcm_ops_t snd_ca0106_playback_front_ops = {
807         .open =        snd_ca0106_pcm_open_playback_front,
808         .close =       snd_ca0106_pcm_close_playback,
809         .ioctl =       snd_pcm_lib_ioctl,
810         .hw_params =   snd_ca0106_pcm_hw_params_playback,
811         .hw_free =     snd_ca0106_pcm_hw_free_playback,
812         .prepare =     snd_ca0106_pcm_prepare_playback,
813         .trigger =     snd_ca0106_pcm_trigger_playback,
814         .pointer =     snd_ca0106_pcm_pointer_playback,
815 };
816
817 static snd_pcm_ops_t snd_ca0106_capture_0_ops = {
818         .open =        snd_ca0106_pcm_open_0_capture,
819         .close =       snd_ca0106_pcm_close_capture,
820         .ioctl =       snd_pcm_lib_ioctl,
821         .hw_params =   snd_ca0106_pcm_hw_params_capture,
822         .hw_free =     snd_ca0106_pcm_hw_free_capture,
823         .prepare =     snd_ca0106_pcm_prepare_capture,
824         .trigger =     snd_ca0106_pcm_trigger_capture,
825         .pointer =     snd_ca0106_pcm_pointer_capture,
826 };
827
828 static snd_pcm_ops_t snd_ca0106_capture_1_ops = {
829         .open =        snd_ca0106_pcm_open_1_capture,
830         .close =       snd_ca0106_pcm_close_capture,
831         .ioctl =       snd_pcm_lib_ioctl,
832         .hw_params =   snd_ca0106_pcm_hw_params_capture,
833         .hw_free =     snd_ca0106_pcm_hw_free_capture,
834         .prepare =     snd_ca0106_pcm_prepare_capture,
835         .trigger =     snd_ca0106_pcm_trigger_capture,
836         .pointer =     snd_ca0106_pcm_pointer_capture,
837 };
838
839 static snd_pcm_ops_t snd_ca0106_capture_2_ops = {
840         .open =        snd_ca0106_pcm_open_2_capture,
841         .close =       snd_ca0106_pcm_close_capture,
842         .ioctl =       snd_pcm_lib_ioctl,
843         .hw_params =   snd_ca0106_pcm_hw_params_capture,
844         .hw_free =     snd_ca0106_pcm_hw_free_capture,
845         .prepare =     snd_ca0106_pcm_prepare_capture,
846         .trigger =     snd_ca0106_pcm_trigger_capture,
847         .pointer =     snd_ca0106_pcm_pointer_capture,
848 };
849
850 static snd_pcm_ops_t snd_ca0106_capture_3_ops = {
851         .open =        snd_ca0106_pcm_open_3_capture,
852         .close =       snd_ca0106_pcm_close_capture,
853         .ioctl =       snd_pcm_lib_ioctl,
854         .hw_params =   snd_ca0106_pcm_hw_params_capture,
855         .hw_free =     snd_ca0106_pcm_hw_free_capture,
856         .prepare =     snd_ca0106_pcm_prepare_capture,
857         .trigger =     snd_ca0106_pcm_trigger_capture,
858         .pointer =     snd_ca0106_pcm_pointer_capture,
859 };
860
861 static snd_pcm_ops_t snd_ca0106_playback_center_lfe_ops = {
862         .open =         snd_ca0106_pcm_open_playback_center_lfe,
863         .close =        snd_ca0106_pcm_close_playback,
864         .ioctl =        snd_pcm_lib_ioctl,
865         .hw_params =    snd_ca0106_pcm_hw_params_playback,
866         .hw_free =      snd_ca0106_pcm_hw_free_playback,
867         .prepare =      snd_ca0106_pcm_prepare_playback,     
868         .trigger =      snd_ca0106_pcm_trigger_playback,  
869         .pointer =      snd_ca0106_pcm_pointer_playback, 
870 };
871
872 static snd_pcm_ops_t snd_ca0106_playback_unknown_ops = {
873         .open =         snd_ca0106_pcm_open_playback_unknown,
874         .close =        snd_ca0106_pcm_close_playback,
875         .ioctl =        snd_pcm_lib_ioctl,
876         .hw_params =    snd_ca0106_pcm_hw_params_playback,
877         .hw_free =      snd_ca0106_pcm_hw_free_playback,
878         .prepare =      snd_ca0106_pcm_prepare_playback,     
879         .trigger =      snd_ca0106_pcm_trigger_playback,  
880         .pointer =      snd_ca0106_pcm_pointer_playback, 
881 };
882
883 static snd_pcm_ops_t snd_ca0106_playback_rear_ops = {
884         .open =         snd_ca0106_pcm_open_playback_rear,
885         .close =        snd_ca0106_pcm_close_playback,
886         .ioctl =        snd_pcm_lib_ioctl,
887         .hw_params =    snd_ca0106_pcm_hw_params_playback,
888                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
889         .prepare =      snd_ca0106_pcm_prepare_playback,     
890         .trigger =      snd_ca0106_pcm_trigger_playback,  
891         .pointer =      snd_ca0106_pcm_pointer_playback, 
892 };
893
894
895 static unsigned short snd_ca0106_ac97_read(ac97_t *ac97,
896                                              unsigned short reg)
897 {
898         ca0106_t *emu = ac97->private_data;
899         unsigned long flags;
900         unsigned short val;
901
902         spin_lock_irqsave(&emu->emu_lock, flags);
903         outb(reg, emu->port + AC97ADDRESS);
904         val = inw(emu->port + AC97DATA);
905         spin_unlock_irqrestore(&emu->emu_lock, flags);
906         return val;
907 }
908
909 static void snd_ca0106_ac97_write(ac97_t *ac97,
910                                     unsigned short reg, unsigned short val)
911 {
912         ca0106_t *emu = ac97->private_data;
913         unsigned long flags;
914   
915         spin_lock_irqsave(&emu->emu_lock, flags);
916         outb(reg, emu->port + AC97ADDRESS);
917         outw(val, emu->port + AC97DATA);
918         spin_unlock_irqrestore(&emu->emu_lock, flags);
919 }
920
921 static int snd_ca0106_ac97(ca0106_t *chip)
922 {
923         ac97_bus_t *pbus;
924         ac97_template_t ac97;
925         int err;
926         static ac97_bus_ops_t ops = {
927                 .write = snd_ca0106_ac97_write,
928                 .read = snd_ca0106_ac97_read,
929         };
930   
931         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
932                 return err;
933         pbus->no_vra = 1; /* we don't need VRA */
934
935         memset(&ac97, 0, sizeof(ac97));
936         ac97.private_data = chip;
937         ac97.scaps = AC97_SCAP_NO_SPDIF;
938         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
939 }
940
941 static int snd_ca0106_free(ca0106_t *chip)
942 {
943         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
944                 // disable interrupts
945                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
946                 outl(0, chip->port + INTE);
947                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
948                 udelay(1000);
949                 // disable audio
950                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
951                 outl(0, chip->port + HCFG);
952                 /* FIXME: We need to stop and DMA transfers here.
953                  *        But as I am not sure how yet, we cannot from the dma pages.
954                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
955                  */
956         }
957         // release the data
958 #if 1
959         if (chip->buffer.area)
960                 snd_dma_free_pages(&chip->buffer);
961 #endif
962
963         // release the i/o port
964         if (chip->res_port) {
965                 release_resource(chip->res_port);
966                 kfree_nocheck(chip->res_port);
967         }
968         // release the irq
969         if (chip->irq >= 0)
970                 free_irq(chip->irq, (void *)chip);
971         pci_disable_device(chip->pci);
972         kfree(chip);
973         return 0;
974 }
975
976 static int snd_ca0106_dev_free(snd_device_t *device)
977 {
978         ca0106_t *chip = device->device_data;
979         return snd_ca0106_free(chip);
980 }
981
982 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id,
983                                           struct pt_regs *regs)
984 {
985         unsigned int status;
986
987         ca0106_t *chip = dev_id;
988         int i;
989         int mask;
990         unsigned int stat76;
991         ca0106_channel_t *pchannel;
992
993         spin_lock(&chip->emu_lock);
994
995         status = inl(chip->port + IPR);
996
997         // call updater, unlock before it
998         spin_unlock(&chip->emu_lock);
999   
1000         if (! status)
1001                 return IRQ_NONE;
1002
1003         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1004         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1005         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1006         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1007         for(i = 0; i < 4; i++) {
1008                 pchannel = &(chip->playback_channels[i]);
1009                 if(stat76 & mask) {
1010 /* FIXME: Select the correct substream for period elapsed */
1011                         if(pchannel->use) {
1012                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1013                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1014                         }
1015                 }
1016                 //printk(KERN_INFO "channel=%p\n",pchannel);
1017                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1018                 mask <<= 1;
1019         }
1020         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1021         for(i = 0; i < 4; i++) {
1022                 pchannel = &(chip->capture_channels[i]);
1023                 if(stat76 & mask) {
1024 /* FIXME: Select the correct substream for period elapsed */
1025                         if(pchannel->use) {
1026                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1027                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1028                         }
1029                 }
1030                 //printk(KERN_INFO "channel=%p\n",pchannel);
1031                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1032                 mask <<= 1;
1033         }
1034
1035         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1036         spin_lock(&chip->emu_lock);
1037         // acknowledge the interrupt if necessary
1038         outl(status, chip->port+IPR);
1039
1040         spin_unlock(&chip->emu_lock);
1041
1042         return IRQ_HANDLED;
1043 }
1044
1045 static void snd_ca0106_pcm_free(snd_pcm_t *pcm)
1046 {
1047         ca0106_t *emu = pcm->private_data;
1048         emu->pcm = NULL;
1049         snd_pcm_lib_preallocate_free_for_all(pcm);
1050 }
1051
1052 static int __devinit snd_ca0106_pcm(ca0106_t *emu, int device, snd_pcm_t **rpcm)
1053 {
1054         snd_pcm_t *pcm;
1055         snd_pcm_substream_t *substream;
1056         int err;
1057   
1058         if (rpcm)
1059                 *rpcm = NULL;
1060         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1061                 return err;
1062   
1063         pcm->private_data = emu;
1064         pcm->private_free = snd_ca0106_pcm_free;
1065
1066         switch (device) {
1067         case 0:
1068           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1069           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1070           break;
1071         case 1:
1072           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1073           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1074           break;
1075         case 2:
1076           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1077           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1078           break;
1079         case 3:
1080           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1081           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1082           break;
1083         }
1084
1085         pcm->info_flags = 0;
1086         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1087         strcpy(pcm->name, "CA0106");
1088         emu->pcm = pcm;
1089
1090         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1091             substream; 
1092             substream = substream->next) {
1093                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1094                                                          SNDRV_DMA_TYPE_DEV, 
1095                                                          snd_dma_pci_data(emu->pci), 
1096                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1097                         return err;
1098         }
1099
1100         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1101               substream; 
1102               substream = substream->next) {
1103                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1104                                                    SNDRV_DMA_TYPE_DEV, 
1105                                                    snd_dma_pci_data(emu->pci), 
1106                                                    64*1024, 64*1024)) < 0)
1107                         return err;
1108         }
1109   
1110         if (rpcm)
1111                 *rpcm = pcm;
1112   
1113         return 0;
1114 }
1115
1116 static int __devinit snd_ca0106_create(snd_card_t *card,
1117                                          struct pci_dev *pci,
1118                                          ca0106_t **rchip)
1119 {
1120         ca0106_t *chip;
1121         ca0106_details_t *c;
1122         int err;
1123         int ch;
1124         static snd_device_ops_t ops = {
1125                 .dev_free = snd_ca0106_dev_free,
1126         };
1127   
1128         *rchip = NULL;
1129   
1130         if ((err = pci_enable_device(pci)) < 0)
1131                 return err;
1132         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1133             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1134                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1135                 pci_disable_device(pci);
1136                 return -ENXIO;
1137         }
1138   
1139         chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
1140         if (chip == NULL) {
1141                 pci_disable_device(pci);
1142                 return -ENOMEM;
1143         }
1144   
1145         chip->card = card;
1146         chip->pci = pci;
1147         chip->irq = -1;
1148
1149         spin_lock_init(&chip->emu_lock);
1150   
1151         chip->port = pci_resource_start(pci, 0);
1152         if ((chip->res_port = request_region(chip->port, 0x20,
1153                                              "snd_ca0106")) == NULL) { 
1154                 snd_ca0106_free(chip);
1155                 printk(KERN_ERR "cannot allocate the port\n");
1156                 return -EBUSY;
1157         }
1158
1159         if (request_irq(pci->irq, snd_ca0106_interrupt,
1160                         SA_INTERRUPT|SA_SHIRQ, "snd_ca0106",
1161                         (void *)chip)) {
1162                 snd_ca0106_free(chip);
1163                 printk(KERN_ERR "cannot grab irq\n");
1164                 return -EBUSY;
1165         }
1166         chip->irq = pci->irq;
1167   
1168         /* This stores the periods table. */ 
1169         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1170                 snd_ca0106_free(chip);
1171                 return -ENOMEM;
1172         }
1173
1174         pci_set_master(pci);
1175         /* read revision & serial */
1176         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
1177         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1178         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1179 #if 1
1180         printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
1181                chip->revision, chip->serial);
1182 #endif
1183         strcpy(card->driver, "CA0106");
1184         strcpy(card->shortname, "CA0106");
1185
1186         for (c=ca0106_chip_details; c->serial; c++) {
1187                 if (c->serial == chip->serial) break;
1188         }
1189         chip->details = c;
1190         sprintf(card->longname, "%s at 0x%lx irq %i",
1191                 c->name, chip->port, chip->irq);
1192
1193         outl(0, chip->port + INTE);
1194
1195         /*
1196          *  Init to 0x02109204 :
1197          *  Clock accuracy    = 0     (1000ppm)
1198          *  Sample Rate       = 2     (48kHz)
1199          *  Audio Channel     = 1     (Left of 2)
1200          *  Source Number     = 0     (Unspecified)
1201          *  Generation Status = 1     (Original for Cat Code 12)
1202          *  Cat Code          = 12    (Digital Signal Mixer)
1203          *  Mode              = 0     (Mode 0)
1204          *  Emphasis          = 0     (None)
1205          *  CP                = 1     (Copyright unasserted)
1206          *  AN                = 0     (Audio data)
1207          *  P                 = 0     (Consumer)
1208          */
1209         snd_ca0106_ptr_write(chip, SPCS0, 0,
1210                                 chip->spdif_bits[0] =
1211                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1212                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1213                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1214                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1215         /* Only SPCS1 has been tested */
1216         snd_ca0106_ptr_write(chip, SPCS1, 0,
1217                                 chip->spdif_bits[1] =
1218                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1219                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1220                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1221                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1222         snd_ca0106_ptr_write(chip, SPCS2, 0,
1223                                 chip->spdif_bits[2] =
1224                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1225                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1226                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1227                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1228         snd_ca0106_ptr_write(chip, SPCS3, 0,
1229                                 chip->spdif_bits[3] =
1230                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1231                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1232                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1233                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1234
1235         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1236         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1237
1238         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1239         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1240         outw(0x8000, chip->port + AC97DATA);
1241 #if 0
1242         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1243         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1244         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1245         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1246 #endif
1247
1248         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1249         /* Analog or Digital output */
1250         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1251         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1252         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1253         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1254         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1255         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1256
1257         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1258         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1259         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1260         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1261         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1262         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1263         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1264         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1265         for(ch = 0; ch < 4; ch++) {
1266                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1267                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1268                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1269                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1270                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1271                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1272         }
1273         snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC, Line in, TAD in, AUX in */
1274         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1275
1276         if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1277                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1278                 outl(0x0, chip->port+GPIO);
1279                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1280                 outl(0x005f4301, chip->port+GPIO); /* Analog */
1281         } else {
1282                 outl(0x0, chip->port+GPIO);
1283                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1284                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1285         }
1286         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1287
1288         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1289         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1290         //outl(0x00000009, chip->port+HCFG);
1291         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1292
1293         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1294                 snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1295         }
1296
1297         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1298                                   chip, &ops)) < 0) {
1299                 snd_ca0106_free(chip);
1300                 return err;
1301         }
1302         *rchip = chip;
1303         return 0;
1304 }
1305
1306 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1307                                         const struct pci_device_id *pci_id)
1308 {
1309         static int dev;
1310         snd_card_t *card;
1311         ca0106_t *chip;
1312         int err;
1313
1314         if (dev >= SNDRV_CARDS)
1315                 return -ENODEV;
1316         if (!enable[dev]) {
1317                 dev++;
1318                 return -ENOENT;
1319         }
1320
1321         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1322         if (card == NULL)
1323                 return -ENOMEM;
1324
1325         if ((err = snd_ca0106_create(card, pci, &chip)) < 0) {
1326                 snd_card_free(card);
1327                 return err;
1328         }
1329
1330         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1331                 snd_card_free(card);
1332                 return err;
1333         }
1334         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1335                 snd_card_free(card);
1336                 return err;
1337         }
1338         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1339                 snd_card_free(card);
1340                 return err;
1341         }
1342         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1343                 snd_card_free(card);
1344                 return err;
1345         }
1346         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1347                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1348                         snd_card_free(card);
1349                         return err;
1350                 }
1351         }
1352         if ((err = snd_ca0106_mixer(chip)) < 0) {
1353                 snd_card_free(card);
1354                 return err;
1355         }
1356
1357         snd_ca0106_proc_init(chip);
1358
1359         if ((err = snd_card_register(card)) < 0) {
1360                 snd_card_free(card);
1361                 return err;
1362         }
1363
1364         pci_set_drvdata(pci, card);
1365         dev++;
1366         return 0;
1367 }
1368
1369 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1370 {
1371         snd_card_free(pci_get_drvdata(pci));
1372         pci_set_drvdata(pci, NULL);
1373 }
1374
1375 // PCI IDs
1376 static struct pci_device_id snd_ca0106_ids[] = {
1377         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1378         { 0, }
1379 };
1380 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1381
1382 // pci_driver definition
1383 static struct pci_driver driver = {
1384         .name = "CA0106",
1385         .id_table = snd_ca0106_ids,
1386         .probe = snd_ca0106_probe,
1387         .remove = __devexit_p(snd_ca0106_remove),
1388 };
1389
1390 // initialization of the module
1391 static int __init alsa_card_ca0106_init(void)
1392 {
1393         int err;
1394
1395         if ((err = pci_register_driver(&driver)) > 0)
1396                 return err;
1397
1398         return 0;
1399 }
1400
1401 // clean up the module
1402 static void __exit alsa_card_ca0106_exit(void)
1403 {
1404         pci_unregister_driver(&driver);
1405 }
1406
1407 module_init(alsa_card_ca0106_init)
1408 module_exit(alsa_card_ca0106_exit)