[ALSA] Remove superfluous pcm_free callbacks
[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          /* Shuttle XPC SD31P which has an onboard Creative Labs Sound Blaster Live! 24-bit EAX
192           * high-definition 7.1 audio processor".
193           * Added using info from andrewvegan in alsa bug #1298
194           */
195          { .serial = 0x30381297,
196            .name   = "Shuttle XPC SD31P [SD31P]",
197            .gpio_type = 1,
198            .i2c_adc = 1 } ,
199          { .serial = 0,
200            .name   = "AudigyLS [Unknown]" }
201 };
202
203 /* hardware definition */
204 static snd_pcm_hardware_t snd_ca0106_playback_hw = {
205         .info =                 (SNDRV_PCM_INFO_MMAP | 
206                                  SNDRV_PCM_INFO_INTERLEAVED |
207                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
208                                  SNDRV_PCM_INFO_MMAP_VALID),
209         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
210         .rates =                SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
211         .rate_min =             48000,
212         .rate_max =             192000,
213         .channels_min =         2,  //1,
214         .channels_max =         2,  //6,
215         .buffer_bytes_max =     ((65536 - 64) * 8),
216         .period_bytes_min =     64,
217         .period_bytes_max =     (65536 - 64),
218         .periods_min =          2,
219         .periods_max =          8,
220         .fifo_size =            0,
221 };
222
223 static snd_pcm_hardware_t snd_ca0106_capture_hw = {
224         .info =                 (SNDRV_PCM_INFO_MMAP | 
225                                  SNDRV_PCM_INFO_INTERLEAVED |
226                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
227                                  SNDRV_PCM_INFO_MMAP_VALID),
228         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
229         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
230         .rate_min =             44100,
231         .rate_max =             192000,
232         .channels_min =         2,
233         .channels_max =         2,
234         .buffer_bytes_max =     ((65536 - 64) * 8),
235         .period_bytes_min =     64,
236         .period_bytes_max =     (65536 - 64),
237         .periods_min =          2,
238         .periods_max =          2,
239         .fifo_size =            0,
240 };
241
242 unsigned int snd_ca0106_ptr_read(ca0106_t * emu, 
243                                           unsigned int reg, 
244                                           unsigned int chn)
245 {
246         unsigned long flags;
247         unsigned int regptr, val;
248   
249         regptr = (reg << 16) | chn;
250
251         spin_lock_irqsave(&emu->emu_lock, flags);
252         outl(regptr, emu->port + PTR);
253         val = inl(emu->port + DATA);
254         spin_unlock_irqrestore(&emu->emu_lock, flags);
255         return val;
256 }
257
258 void snd_ca0106_ptr_write(ca0106_t *emu, 
259                                    unsigned int reg, 
260                                    unsigned int chn, 
261                                    unsigned int data)
262 {
263         unsigned int regptr;
264         unsigned long flags;
265
266         regptr = (reg << 16) | chn;
267
268         spin_lock_irqsave(&emu->emu_lock, flags);
269         outl(regptr, emu->port + PTR);
270         outl(data, emu->port + DATA);
271         spin_unlock_irqrestore(&emu->emu_lock, flags);
272 }
273
274 int snd_ca0106_i2c_write(ca0106_t *emu,
275                                 u32 reg,
276                                 u32 value)
277 {
278         u32 tmp;
279         int timeout=0;
280         int status;
281         int retry;
282         if ((reg > 0x7f) || (value > 0x1ff))
283         {
284                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
285                 return -EINVAL;
286         }
287
288         tmp = reg << 25 | value << 16;
289         /* Not sure what this I2C channel controls. */
290         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
291
292         /* This controls the I2C connected to the WM8775 ADC Codec */
293         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
294
295         for(retry=0;retry<10;retry++)
296         {
297                 /* Send the data to i2c */
298                 tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
299                 tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
300                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
301                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
302
303                 /* Wait till the transaction ends */
304                 while(1)
305                 {
306                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
307                         //snd_printk("I2C:status=0x%x\n", status);
308                         timeout++;
309                         if((status & I2C_A_ADC_START)==0)
310                                 break;
311
312                         if(timeout>1000)
313                                 break;
314                 }
315                 //Read back and see if the transaction is successful
316                 if((status & I2C_A_ADC_ABORT)==0)
317                         break;
318         }
319
320         if(retry==10)
321         {
322                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
323                 return -EINVAL;
324         }
325     
326         return 0;
327 }
328
329
330 static void snd_ca0106_intr_enable(ca0106_t *emu, unsigned int intrenb)
331 {
332         unsigned long flags;
333         unsigned int enable;
334   
335         spin_lock_irqsave(&emu->emu_lock, flags);
336         enable = inl(emu->port + INTE) | intrenb;
337         outl(enable, emu->port + INTE);
338         spin_unlock_irqrestore(&emu->emu_lock, flags);
339 }
340
341 static void snd_ca0106_intr_disable(ca0106_t *emu, unsigned int intrenb)
342 {
343         unsigned long flags;
344         unsigned int enable;
345   
346         spin_lock_irqsave(&emu->emu_lock, flags);
347         enable = inl(emu->port + INTE) & ~intrenb;
348         outl(enable, emu->port + INTE);
349         spin_unlock_irqrestore(&emu->emu_lock, flags);
350 }
351
352
353 static void snd_ca0106_pcm_free_substream(snd_pcm_runtime_t *runtime)
354 {
355         kfree(runtime->private_data);
356 }
357
358 /* open_playback callback */
359 static int snd_ca0106_pcm_open_playback_channel(snd_pcm_substream_t *substream, int channel_id)
360 {
361         ca0106_t *chip = snd_pcm_substream_chip(substream);
362         ca0106_channel_t *channel = &(chip->playback_channels[channel_id]);
363         ca0106_pcm_t *epcm;
364         snd_pcm_runtime_t *runtime = substream->runtime;
365         int err;
366
367         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
368
369         if (epcm == NULL)
370                 return -ENOMEM;
371         epcm->emu = chip;
372         epcm->substream = substream;
373         epcm->channel_id=channel_id;
374   
375         runtime->private_data = epcm;
376         runtime->private_free = snd_ca0106_pcm_free_substream;
377   
378         runtime->hw = snd_ca0106_playback_hw;
379
380         channel->emu = chip;
381         channel->number = channel_id;
382
383         channel->use=1;
384         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
385         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
386         channel->epcm=epcm;
387         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
388                 return err;
389         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
390                 return err;
391         return 0;
392 }
393
394 /* close callback */
395 static int snd_ca0106_pcm_close_playback(snd_pcm_substream_t *substream)
396 {
397         ca0106_t *chip = snd_pcm_substream_chip(substream);
398         snd_pcm_runtime_t *runtime = substream->runtime;
399         ca0106_pcm_t *epcm = runtime->private_data;
400         chip->playback_channels[epcm->channel_id].use=0;
401 /* FIXME: maybe zero others */
402         return 0;
403 }
404
405 static int snd_ca0106_pcm_open_playback_front(snd_pcm_substream_t *substream)
406 {
407         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
408 }
409
410 static int snd_ca0106_pcm_open_playback_center_lfe(snd_pcm_substream_t *substream)
411 {
412         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
413 }
414
415 static int snd_ca0106_pcm_open_playback_unknown(snd_pcm_substream_t *substream)
416 {
417         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
418 }
419
420 static int snd_ca0106_pcm_open_playback_rear(snd_pcm_substream_t *substream)
421 {
422         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
423 }
424
425 /* open_capture callback */
426 static int snd_ca0106_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
427 {
428         ca0106_t *chip = snd_pcm_substream_chip(substream);
429         ca0106_channel_t *channel = &(chip->capture_channels[channel_id]);
430         ca0106_pcm_t *epcm;
431         snd_pcm_runtime_t *runtime = substream->runtime;
432         int err;
433
434         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
435         if (epcm == NULL) {
436                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
437                 return -ENOMEM;
438         }
439         epcm->emu = chip;
440         epcm->substream = substream;
441         epcm->channel_id=channel_id;
442   
443         runtime->private_data = epcm;
444         runtime->private_free = snd_ca0106_pcm_free_substream;
445   
446         runtime->hw = snd_ca0106_capture_hw;
447
448         channel->emu = chip;
449         channel->number = channel_id;
450
451         channel->use=1;
452         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
453         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
454         channel->epcm=epcm;
455         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
456                 return err;
457         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
458         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
459                 return err;
460         return 0;
461 }
462
463 /* close callback */
464 static int snd_ca0106_pcm_close_capture(snd_pcm_substream_t *substream)
465 {
466         ca0106_t *chip = snd_pcm_substream_chip(substream);
467         snd_pcm_runtime_t *runtime = substream->runtime;
468         ca0106_pcm_t *epcm = runtime->private_data;
469         chip->capture_channels[epcm->channel_id].use=0;
470 /* FIXME: maybe zero others */
471         return 0;
472 }
473
474 static int snd_ca0106_pcm_open_0_capture(snd_pcm_substream_t *substream)
475 {
476         return snd_ca0106_pcm_open_capture_channel(substream, 0);
477 }
478
479 static int snd_ca0106_pcm_open_1_capture(snd_pcm_substream_t *substream)
480 {
481         return snd_ca0106_pcm_open_capture_channel(substream, 1);
482 }
483
484 static int snd_ca0106_pcm_open_2_capture(snd_pcm_substream_t *substream)
485 {
486         return snd_ca0106_pcm_open_capture_channel(substream, 2);
487 }
488
489 static int snd_ca0106_pcm_open_3_capture(snd_pcm_substream_t *substream)
490 {
491         return snd_ca0106_pcm_open_capture_channel(substream, 3);
492 }
493
494 /* hw_params callback */
495 static int snd_ca0106_pcm_hw_params_playback(snd_pcm_substream_t *substream,
496                                       snd_pcm_hw_params_t * hw_params)
497 {
498         return snd_pcm_lib_malloc_pages(substream,
499                                         params_buffer_bytes(hw_params));
500 }
501
502 /* hw_free callback */
503 static int snd_ca0106_pcm_hw_free_playback(snd_pcm_substream_t *substream)
504 {
505         return snd_pcm_lib_free_pages(substream);
506 }
507
508 /* hw_params callback */
509 static int snd_ca0106_pcm_hw_params_capture(snd_pcm_substream_t *substream,
510                                       snd_pcm_hw_params_t * hw_params)
511 {
512         return snd_pcm_lib_malloc_pages(substream,
513                                         params_buffer_bytes(hw_params));
514 }
515
516 /* hw_free callback */
517 static int snd_ca0106_pcm_hw_free_capture(snd_pcm_substream_t *substream)
518 {
519         return snd_pcm_lib_free_pages(substream);
520 }
521
522 /* prepare playback callback */
523 static int snd_ca0106_pcm_prepare_playback(snd_pcm_substream_t *substream)
524 {
525         ca0106_t *emu = snd_pcm_substream_chip(substream);
526         snd_pcm_runtime_t *runtime = substream->runtime;
527         ca0106_pcm_t *epcm = runtime->private_data;
528         int channel = epcm->channel_id;
529         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
530         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
531         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
532         u32 hcfg_set = 0x00000000;
533         u32 hcfg;
534         u32 reg40_mask = 0x30000 << (channel<<1);
535         u32 reg40_set = 0;
536         u32 reg40;
537         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
538         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
539         u32 reg71_set = 0;
540         u32 reg71;
541         int i;
542         
543         //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));
544         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
545         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
546         /* Rate can be set per channel. */
547         /* reg40 control host to fifo */
548         /* reg71 controls DAC rate. */
549         switch (runtime->rate) {
550         case 44100:
551                 reg40_set = 0x10000 << (channel<<1);
552                 reg71_set = 0x01010000; 
553                 break;
554         case 48000:
555                 reg40_set = 0;
556                 reg71_set = 0; 
557                 break;
558         case 96000:
559                 reg40_set = 0x20000 << (channel<<1);
560                 reg71_set = 0x02020000; 
561                 break;
562         case 192000:
563                 reg40_set = 0x30000 << (channel<<1);
564                 reg71_set = 0x03030000; 
565                 break;
566         default:
567                 reg40_set = 0;
568                 reg71_set = 0; 
569                 break;
570         }
571         /* Format is a global setting */
572         /* FIXME: Only let the first channel accessed set this. */
573         switch (runtime->format) {
574         case SNDRV_PCM_FORMAT_S16_LE:
575                 hcfg_set = 0;
576                 break;
577         case SNDRV_PCM_FORMAT_S32_LE:
578                 hcfg_set = HCFG_PLAYBACK_S32_LE;
579                 break;
580         default:
581                 hcfg_set = 0;
582                 break;
583         }
584         hcfg = inl(emu->port + HCFG) ;
585         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
586         outl(hcfg, emu->port + HCFG);
587         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
588         reg40 = (reg40 & ~reg40_mask) | reg40_set;
589         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
590         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
591         reg71 = (reg71 & ~reg71_mask) | reg71_set;
592         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
593
594         /* FIXME: Check emu->buffer.size before actually writing to it. */
595         for(i=0; i < runtime->periods; i++) {
596                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
597                 table_base[(i*2)+1]=period_size_bytes<<16;
598         }
599  
600         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
601         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
602         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
603         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
604         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
605         /* FIXME  test what 0 bytes does. */
606         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
607         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
608         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
609         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
610         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
611 #if 0
612         snd_ca0106_ptr_write(emu, SPCS0, 0,
613                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
614                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
615                                SPCS_GENERATIONSTATUS | 0x00001200 |
616                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
617         }
618 #endif
619
620         return 0;
621 }
622
623 /* prepare capture callback */
624 static int snd_ca0106_pcm_prepare_capture(snd_pcm_substream_t *substream)
625 {
626         ca0106_t *emu = snd_pcm_substream_chip(substream);
627         snd_pcm_runtime_t *runtime = substream->runtime;
628         ca0106_pcm_t *epcm = runtime->private_data;
629         int channel = epcm->channel_id;
630         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
631         u32 hcfg_set = 0x00000000;
632         u32 hcfg;
633         u32 over_sampling=0x2;
634         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
635         u32 reg71_set = 0;
636         u32 reg71;
637         
638         //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));
639         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
640         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
641         /* reg71 controls ADC rate. */
642         switch (runtime->rate) {
643         case 44100:
644                 reg71_set = 0x00004000;
645                 break;
646         case 48000:
647                 reg71_set = 0; 
648                 break;
649         case 96000:
650                 reg71_set = 0x00008000;
651                 over_sampling=0xa;
652                 break;
653         case 192000:
654                 reg71_set = 0x0000c000; 
655                 over_sampling=0xa;
656                 break;
657         default:
658                 reg71_set = 0; 
659                 break;
660         }
661         /* Format is a global setting */
662         /* FIXME: Only let the first channel accessed set this. */
663         switch (runtime->format) {
664         case SNDRV_PCM_FORMAT_S16_LE:
665                 hcfg_set = 0;
666                 break;
667         case SNDRV_PCM_FORMAT_S32_LE:
668                 hcfg_set = HCFG_CAPTURE_S32_LE;
669                 break;
670         default:
671                 hcfg_set = 0;
672                 break;
673         }
674         hcfg = inl(emu->port + HCFG) ;
675         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
676         outl(hcfg, emu->port + HCFG);
677         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
678         reg71 = (reg71 & ~reg71_mask) | reg71_set;
679         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
680         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
681                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
682         }
683
684
685         //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));
686         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
687         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
688         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
689         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
690
691         return 0;
692 }
693
694 /* trigger_playback callback */
695 static int snd_ca0106_pcm_trigger_playback(snd_pcm_substream_t *substream,
696                                     int cmd)
697 {
698         ca0106_t *emu = snd_pcm_substream_chip(substream);
699         snd_pcm_runtime_t *runtime;
700         ca0106_pcm_t *epcm;
701         int channel;
702         int result = 0;
703         struct list_head *pos;
704         snd_pcm_substream_t *s;
705         u32 basic = 0;
706         u32 extended = 0;
707         int running=0;
708
709         switch (cmd) {
710         case SNDRV_PCM_TRIGGER_START:
711                 running=1;
712                 break;
713         case SNDRV_PCM_TRIGGER_STOP:
714         default:
715                 running=0;
716                 break;
717         }
718         snd_pcm_group_for_each(pos, substream) {
719                 s = snd_pcm_group_substream_entry(pos);
720                 runtime = s->runtime;
721                 epcm = runtime->private_data;
722                 channel = epcm->channel_id;
723                 //snd_printk("channel=%d\n",channel);
724                 epcm->running = running;
725                 basic |= (0x1<<channel);
726                 extended |= (0x10<<channel);
727                 snd_pcm_trigger_done(s, substream);
728         }
729         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
730
731         switch (cmd) {
732         case SNDRV_PCM_TRIGGER_START:
733                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
734                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
735                 break;
736         case SNDRV_PCM_TRIGGER_STOP:
737                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
738                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
739                 break;
740         default:
741                 result = -EINVAL;
742                 break;
743         }
744         return result;
745 }
746
747 /* trigger_capture callback */
748 static int snd_ca0106_pcm_trigger_capture(snd_pcm_substream_t *substream,
749                                     int cmd)
750 {
751         ca0106_t *emu = snd_pcm_substream_chip(substream);
752         snd_pcm_runtime_t *runtime = substream->runtime;
753         ca0106_pcm_t *epcm = runtime->private_data;
754         int channel = epcm->channel_id;
755         int result = 0;
756
757         switch (cmd) {
758         case SNDRV_PCM_TRIGGER_START:
759                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
760                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
761                 epcm->running = 1;
762                 break;
763         case SNDRV_PCM_TRIGGER_STOP:
764                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
765                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
766                 epcm->running = 0;
767                 break;
768         default:
769                 result = -EINVAL;
770                 break;
771         }
772         return result;
773 }
774
775 /* pointer_playback callback */
776 static snd_pcm_uframes_t
777 snd_ca0106_pcm_pointer_playback(snd_pcm_substream_t *substream)
778 {
779         ca0106_t *emu = snd_pcm_substream_chip(substream);
780         snd_pcm_runtime_t *runtime = substream->runtime;
781         ca0106_pcm_t *epcm = runtime->private_data;
782         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
783         int channel = epcm->channel_id;
784
785         if (!epcm->running)
786                 return 0;
787
788         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
789         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
790         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
791         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
792         ptr2 = bytes_to_frames(runtime, ptr1);
793         ptr2+= (ptr4 >> 3) * runtime->period_size;
794         ptr=ptr2;
795         if (ptr >= runtime->buffer_size)
796                 ptr -= runtime->buffer_size;
797         //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);
798
799         return ptr;
800 }
801
802 /* pointer_capture callback */
803 static snd_pcm_uframes_t
804 snd_ca0106_pcm_pointer_capture(snd_pcm_substream_t *substream)
805 {
806         ca0106_t *emu = snd_pcm_substream_chip(substream);
807         snd_pcm_runtime_t *runtime = substream->runtime;
808         ca0106_pcm_t *epcm = runtime->private_data;
809         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
810         int channel = channel=epcm->channel_id;
811
812         if (!epcm->running)
813                 return 0;
814
815         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
816         ptr2 = bytes_to_frames(runtime, ptr1);
817         ptr=ptr2;
818         if (ptr >= runtime->buffer_size)
819                 ptr -= runtime->buffer_size;
820         //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);
821
822         return ptr;
823 }
824
825 /* operators */
826 static snd_pcm_ops_t snd_ca0106_playback_front_ops = {
827         .open =        snd_ca0106_pcm_open_playback_front,
828         .close =       snd_ca0106_pcm_close_playback,
829         .ioctl =       snd_pcm_lib_ioctl,
830         .hw_params =   snd_ca0106_pcm_hw_params_playback,
831         .hw_free =     snd_ca0106_pcm_hw_free_playback,
832         .prepare =     snd_ca0106_pcm_prepare_playback,
833         .trigger =     snd_ca0106_pcm_trigger_playback,
834         .pointer =     snd_ca0106_pcm_pointer_playback,
835 };
836
837 static snd_pcm_ops_t snd_ca0106_capture_0_ops = {
838         .open =        snd_ca0106_pcm_open_0_capture,
839         .close =       snd_ca0106_pcm_close_capture,
840         .ioctl =       snd_pcm_lib_ioctl,
841         .hw_params =   snd_ca0106_pcm_hw_params_capture,
842         .hw_free =     snd_ca0106_pcm_hw_free_capture,
843         .prepare =     snd_ca0106_pcm_prepare_capture,
844         .trigger =     snd_ca0106_pcm_trigger_capture,
845         .pointer =     snd_ca0106_pcm_pointer_capture,
846 };
847
848 static snd_pcm_ops_t snd_ca0106_capture_1_ops = {
849         .open =        snd_ca0106_pcm_open_1_capture,
850         .close =       snd_ca0106_pcm_close_capture,
851         .ioctl =       snd_pcm_lib_ioctl,
852         .hw_params =   snd_ca0106_pcm_hw_params_capture,
853         .hw_free =     snd_ca0106_pcm_hw_free_capture,
854         .prepare =     snd_ca0106_pcm_prepare_capture,
855         .trigger =     snd_ca0106_pcm_trigger_capture,
856         .pointer =     snd_ca0106_pcm_pointer_capture,
857 };
858
859 static snd_pcm_ops_t snd_ca0106_capture_2_ops = {
860         .open =        snd_ca0106_pcm_open_2_capture,
861         .close =       snd_ca0106_pcm_close_capture,
862         .ioctl =       snd_pcm_lib_ioctl,
863         .hw_params =   snd_ca0106_pcm_hw_params_capture,
864         .hw_free =     snd_ca0106_pcm_hw_free_capture,
865         .prepare =     snd_ca0106_pcm_prepare_capture,
866         .trigger =     snd_ca0106_pcm_trigger_capture,
867         .pointer =     snd_ca0106_pcm_pointer_capture,
868 };
869
870 static snd_pcm_ops_t snd_ca0106_capture_3_ops = {
871         .open =        snd_ca0106_pcm_open_3_capture,
872         .close =       snd_ca0106_pcm_close_capture,
873         .ioctl =       snd_pcm_lib_ioctl,
874         .hw_params =   snd_ca0106_pcm_hw_params_capture,
875         .hw_free =     snd_ca0106_pcm_hw_free_capture,
876         .prepare =     snd_ca0106_pcm_prepare_capture,
877         .trigger =     snd_ca0106_pcm_trigger_capture,
878         .pointer =     snd_ca0106_pcm_pointer_capture,
879 };
880
881 static snd_pcm_ops_t snd_ca0106_playback_center_lfe_ops = {
882         .open =         snd_ca0106_pcm_open_playback_center_lfe,
883         .close =        snd_ca0106_pcm_close_playback,
884         .ioctl =        snd_pcm_lib_ioctl,
885         .hw_params =    snd_ca0106_pcm_hw_params_playback,
886         .hw_free =      snd_ca0106_pcm_hw_free_playback,
887         .prepare =      snd_ca0106_pcm_prepare_playback,     
888         .trigger =      snd_ca0106_pcm_trigger_playback,  
889         .pointer =      snd_ca0106_pcm_pointer_playback, 
890 };
891
892 static snd_pcm_ops_t snd_ca0106_playback_unknown_ops = {
893         .open =         snd_ca0106_pcm_open_playback_unknown,
894         .close =        snd_ca0106_pcm_close_playback,
895         .ioctl =        snd_pcm_lib_ioctl,
896         .hw_params =    snd_ca0106_pcm_hw_params_playback,
897         .hw_free =      snd_ca0106_pcm_hw_free_playback,
898         .prepare =      snd_ca0106_pcm_prepare_playback,     
899         .trigger =      snd_ca0106_pcm_trigger_playback,  
900         .pointer =      snd_ca0106_pcm_pointer_playback, 
901 };
902
903 static snd_pcm_ops_t snd_ca0106_playback_rear_ops = {
904         .open =         snd_ca0106_pcm_open_playback_rear,
905         .close =        snd_ca0106_pcm_close_playback,
906         .ioctl =        snd_pcm_lib_ioctl,
907         .hw_params =    snd_ca0106_pcm_hw_params_playback,
908                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
909         .prepare =      snd_ca0106_pcm_prepare_playback,     
910         .trigger =      snd_ca0106_pcm_trigger_playback,  
911         .pointer =      snd_ca0106_pcm_pointer_playback, 
912 };
913
914
915 static unsigned short snd_ca0106_ac97_read(ac97_t *ac97,
916                                              unsigned short reg)
917 {
918         ca0106_t *emu = ac97->private_data;
919         unsigned long flags;
920         unsigned short val;
921
922         spin_lock_irqsave(&emu->emu_lock, flags);
923         outb(reg, emu->port + AC97ADDRESS);
924         val = inw(emu->port + AC97DATA);
925         spin_unlock_irqrestore(&emu->emu_lock, flags);
926         return val;
927 }
928
929 static void snd_ca0106_ac97_write(ac97_t *ac97,
930                                     unsigned short reg, unsigned short val)
931 {
932         ca0106_t *emu = ac97->private_data;
933         unsigned long flags;
934   
935         spin_lock_irqsave(&emu->emu_lock, flags);
936         outb(reg, emu->port + AC97ADDRESS);
937         outw(val, emu->port + AC97DATA);
938         spin_unlock_irqrestore(&emu->emu_lock, flags);
939 }
940
941 static int snd_ca0106_ac97(ca0106_t *chip)
942 {
943         ac97_bus_t *pbus;
944         ac97_template_t ac97;
945         int err;
946         static ac97_bus_ops_t ops = {
947                 .write = snd_ca0106_ac97_write,
948                 .read = snd_ca0106_ac97_read,
949         };
950   
951         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
952                 return err;
953         pbus->no_vra = 1; /* we don't need VRA */
954
955         memset(&ac97, 0, sizeof(ac97));
956         ac97.private_data = chip;
957         ac97.scaps = AC97_SCAP_NO_SPDIF;
958         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
959 }
960
961 static int snd_ca0106_free(ca0106_t *chip)
962 {
963         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
964                 // disable interrupts
965                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
966                 outl(0, chip->port + INTE);
967                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
968                 udelay(1000);
969                 // disable audio
970                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
971                 outl(0, chip->port + HCFG);
972                 /* FIXME: We need to stop and DMA transfers here.
973                  *        But as I am not sure how yet, we cannot from the dma pages.
974                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
975                  */
976         }
977         // release the data
978 #if 1
979         if (chip->buffer.area)
980                 snd_dma_free_pages(&chip->buffer);
981 #endif
982
983         // release the i/o port
984         release_and_free_resource(chip->res_port);
985
986         // release the irq
987         if (chip->irq >= 0)
988                 free_irq(chip->irq, (void *)chip);
989         pci_disable_device(chip->pci);
990         kfree(chip);
991         return 0;
992 }
993
994 static int snd_ca0106_dev_free(snd_device_t *device)
995 {
996         ca0106_t *chip = device->device_data;
997         return snd_ca0106_free(chip);
998 }
999
1000 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id,
1001                                           struct pt_regs *regs)
1002 {
1003         unsigned int status;
1004
1005         ca0106_t *chip = dev_id;
1006         int i;
1007         int mask;
1008         unsigned int stat76;
1009         ca0106_channel_t *pchannel;
1010
1011         spin_lock(&chip->emu_lock);
1012
1013         status = inl(chip->port + IPR);
1014
1015         // call updater, unlock before it
1016         spin_unlock(&chip->emu_lock);
1017   
1018         if (! status)
1019                 return IRQ_NONE;
1020
1021         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1022         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1023         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1024         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1025         for(i = 0; i < 4; i++) {
1026                 pchannel = &(chip->playback_channels[i]);
1027                 if(stat76 & mask) {
1028 /* FIXME: Select the correct substream for period elapsed */
1029                         if(pchannel->use) {
1030                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1031                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1032                         }
1033                 }
1034                 //printk(KERN_INFO "channel=%p\n",pchannel);
1035                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1036                 mask <<= 1;
1037         }
1038         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1039         for(i = 0; i < 4; i++) {
1040                 pchannel = &(chip->capture_channels[i]);
1041                 if(stat76 & mask) {
1042 /* FIXME: Select the correct substream for period elapsed */
1043                         if(pchannel->use) {
1044                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1045                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1046                         }
1047                 }
1048                 //printk(KERN_INFO "channel=%p\n",pchannel);
1049                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1050                 mask <<= 1;
1051         }
1052
1053         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1054         spin_lock(&chip->emu_lock);
1055
1056         if (chip->midi.dev_id &&
1057           (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1058                 if (chip->midi.interrupt)
1059                         chip->midi.interrupt(&chip->midi, status);
1060                 else
1061                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1062         }
1063
1064         // acknowledge the interrupt if necessary
1065         outl(status, chip->port+IPR);
1066
1067         spin_unlock(&chip->emu_lock);
1068
1069         return IRQ_HANDLED;
1070 }
1071
1072 static int __devinit snd_ca0106_pcm(ca0106_t *emu, int device, snd_pcm_t **rpcm)
1073 {
1074         snd_pcm_t *pcm;
1075         snd_pcm_substream_t *substream;
1076         int err;
1077   
1078         if (rpcm)
1079                 *rpcm = NULL;
1080         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1081                 return err;
1082   
1083         pcm->private_data = emu;
1084
1085         switch (device) {
1086         case 0:
1087           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1088           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1089           break;
1090         case 1:
1091           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1092           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1093           break;
1094         case 2:
1095           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1096           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1097           break;
1098         case 3:
1099           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1100           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1101           break;
1102         }
1103
1104         pcm->info_flags = 0;
1105         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1106         strcpy(pcm->name, "CA0106");
1107         emu->pcm = pcm;
1108
1109         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1110             substream; 
1111             substream = substream->next) {
1112                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1113                                                          SNDRV_DMA_TYPE_DEV, 
1114                                                          snd_dma_pci_data(emu->pci), 
1115                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1116                         return err;
1117         }
1118
1119         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1120               substream; 
1121               substream = substream->next) {
1122                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1123                                                    SNDRV_DMA_TYPE_DEV, 
1124                                                    snd_dma_pci_data(emu->pci), 
1125                                                    64*1024, 64*1024)) < 0)
1126                         return err;
1127         }
1128   
1129         if (rpcm)
1130                 *rpcm = pcm;
1131   
1132         return 0;
1133 }
1134
1135 static int __devinit snd_ca0106_create(snd_card_t *card,
1136                                          struct pci_dev *pci,
1137                                          ca0106_t **rchip)
1138 {
1139         ca0106_t *chip;
1140         ca0106_details_t *c;
1141         int err;
1142         int ch;
1143         static snd_device_ops_t ops = {
1144                 .dev_free = snd_ca0106_dev_free,
1145         };
1146   
1147         *rchip = NULL;
1148   
1149         if ((err = pci_enable_device(pci)) < 0)
1150                 return err;
1151         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1152             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1153                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1154                 pci_disable_device(pci);
1155                 return -ENXIO;
1156         }
1157   
1158         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1159         if (chip == NULL) {
1160                 pci_disable_device(pci);
1161                 return -ENOMEM;
1162         }
1163   
1164         chip->card = card;
1165         chip->pci = pci;
1166         chip->irq = -1;
1167
1168         spin_lock_init(&chip->emu_lock);
1169   
1170         chip->port = pci_resource_start(pci, 0);
1171         if ((chip->res_port = request_region(chip->port, 0x20,
1172                                              "snd_ca0106")) == NULL) { 
1173                 snd_ca0106_free(chip);
1174                 printk(KERN_ERR "cannot allocate the port\n");
1175                 return -EBUSY;
1176         }
1177
1178         if (request_irq(pci->irq, snd_ca0106_interrupt,
1179                         SA_INTERRUPT|SA_SHIRQ, "snd_ca0106",
1180                         (void *)chip)) {
1181                 snd_ca0106_free(chip);
1182                 printk(KERN_ERR "cannot grab irq\n");
1183                 return -EBUSY;
1184         }
1185         chip->irq = pci->irq;
1186   
1187         /* This stores the periods table. */ 
1188         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1189                 snd_ca0106_free(chip);
1190                 return -ENOMEM;
1191         }
1192
1193         pci_set_master(pci);
1194         /* read revision & serial */
1195         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
1196         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1197         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1198 #if 1
1199         printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
1200                chip->revision, chip->serial);
1201 #endif
1202         strcpy(card->driver, "CA0106");
1203         strcpy(card->shortname, "CA0106");
1204
1205         for (c=ca0106_chip_details; c->serial; c++) {
1206                 if (c->serial == chip->serial) break;
1207         }
1208         chip->details = c;
1209         sprintf(card->longname, "%s at 0x%lx irq %i",
1210                 c->name, chip->port, chip->irq);
1211
1212         outl(0, chip->port + INTE);
1213
1214         /*
1215          *  Init to 0x02109204 :
1216          *  Clock accuracy    = 0     (1000ppm)
1217          *  Sample Rate       = 2     (48kHz)
1218          *  Audio Channel     = 1     (Left of 2)
1219          *  Source Number     = 0     (Unspecified)
1220          *  Generation Status = 1     (Original for Cat Code 12)
1221          *  Cat Code          = 12    (Digital Signal Mixer)
1222          *  Mode              = 0     (Mode 0)
1223          *  Emphasis          = 0     (None)
1224          *  CP                = 1     (Copyright unasserted)
1225          *  AN                = 0     (Audio data)
1226          *  P                 = 0     (Consumer)
1227          */
1228         snd_ca0106_ptr_write(chip, SPCS0, 0,
1229                                 chip->spdif_bits[0] =
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         /* Only SPCS1 has been tested */
1235         snd_ca0106_ptr_write(chip, SPCS1, 0,
1236                                 chip->spdif_bits[1] =
1237                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1238                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1239                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1240                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1241         snd_ca0106_ptr_write(chip, SPCS2, 0,
1242                                 chip->spdif_bits[2] =
1243                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1244                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1245                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1246                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1247         snd_ca0106_ptr_write(chip, SPCS3, 0,
1248                                 chip->spdif_bits[3] =
1249                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1250                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1251                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1252                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1253
1254         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1255         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1256
1257         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1258         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1259         outw(0x8000, chip->port + AC97DATA);
1260 #if 0
1261         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1262         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1263         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1264         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1265 #endif
1266
1267         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1268         /* Analog or Digital output */
1269         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1270         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1271         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1272         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1273         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1274         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1275
1276         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1277         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1278         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1279         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1280         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1281         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1282         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1283         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1284         for(ch = 0; ch < 4; ch++) {
1285                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1286                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1287                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1288                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1289                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1290                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1291         }
1292         snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC, Line in, TAD in, AUX in */
1293         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1294
1295         if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1296                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1297                 outl(0x0, chip->port+GPIO);
1298                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1299                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1300         } else {
1301                 outl(0x0, chip->port+GPIO);
1302                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1303                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1304         }
1305         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1306
1307         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1308         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1309         //outl(0x00000009, chip->port+HCFG);
1310         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1311
1312         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1313                 snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1314         }
1315
1316         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1317                                   chip, &ops)) < 0) {
1318                 snd_ca0106_free(chip);
1319                 return err;
1320         }
1321         *rchip = chip;
1322         return 0;
1323 }
1324
1325
1326 static void ca0106_midi_interrupt_enable(ca_midi_t *midi, int intr)
1327 {
1328         snd_ca0106_intr_enable((ca0106_t *)(midi->dev_id), intr);
1329 }
1330
1331 static void ca0106_midi_interrupt_disable(ca_midi_t *midi, int intr)
1332 {
1333         snd_ca0106_intr_disable((ca0106_t *)(midi->dev_id), intr);
1334 }
1335
1336 static unsigned char ca0106_midi_read(ca_midi_t *midi, int idx)
1337 {
1338         return (unsigned char)snd_ca0106_ptr_read((ca0106_t *)(midi->dev_id), midi->port + idx, 0);
1339 }
1340
1341 static void ca0106_midi_write(ca_midi_t *midi, int data, int idx)
1342 {
1343         snd_ca0106_ptr_write((ca0106_t *)(midi->dev_id), midi->port + idx, 0, data);
1344 }
1345
1346 static snd_card_t *ca0106_dev_id_card(void *dev_id)
1347 {
1348         return ((ca0106_t *)dev_id)->card;
1349 }
1350
1351 static int ca0106_dev_id_port(void *dev_id)
1352 {
1353         return ((ca0106_t *)dev_id)->port;
1354 }
1355
1356 static int __devinit snd_ca0106_midi(ca0106_t *chip, unsigned int channel)
1357 {
1358         ca_midi_t *midi;
1359         char *name;
1360         int err;
1361
1362         if(channel==CA0106_MIDI_CHAN_B) {
1363                 name = "CA0106 MPU-401 (UART) B";
1364                 midi =  &chip->midi2;
1365                 midi->tx_enable = INTE_MIDI_TX_B;
1366                 midi->rx_enable = INTE_MIDI_RX_B;
1367                 midi->ipr_tx = IPR_MIDI_TX_B;
1368                 midi->ipr_rx = IPR_MIDI_RX_B;
1369                 midi->port = MIDI_UART_B_DATA;
1370         } else {
1371                 name = "CA0106 MPU-401 (UART)";
1372                 midi =  &chip->midi;
1373                 midi->tx_enable = INTE_MIDI_TX_A;
1374                 midi->rx_enable = INTE_MIDI_TX_B;
1375                 midi->ipr_tx = IPR_MIDI_TX_A;
1376                 midi->ipr_rx = IPR_MIDI_RX_A;
1377                 midi->port = MIDI_UART_A_DATA;
1378         }
1379
1380         midi->reset = CA0106_MPU401_RESET;
1381         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1382         midi->ack = CA0106_MPU401_ACK;
1383
1384         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1385         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1386
1387         midi->channel = channel;
1388
1389         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1390         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1391
1392         midi->read = ca0106_midi_read;
1393         midi->write = ca0106_midi_write;
1394
1395         midi->get_dev_id_card = ca0106_dev_id_card;
1396         midi->get_dev_id_port = ca0106_dev_id_port;
1397
1398         midi->dev_id = chip;
1399         
1400         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1401                 return err;
1402
1403         return 0;
1404 }
1405
1406
1407 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1408                                         const struct pci_device_id *pci_id)
1409 {
1410         static int dev;
1411         snd_card_t *card;
1412         ca0106_t *chip;
1413         int err;
1414
1415         if (dev >= SNDRV_CARDS)
1416                 return -ENODEV;
1417         if (!enable[dev]) {
1418                 dev++;
1419                 return -ENOENT;
1420         }
1421
1422         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1423         if (card == NULL)
1424                 return -ENOMEM;
1425
1426         if ((err = snd_ca0106_create(card, pci, &chip)) < 0) {
1427                 snd_card_free(card);
1428                 return err;
1429         }
1430
1431         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1432                 snd_card_free(card);
1433                 return err;
1434         }
1435         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1436                 snd_card_free(card);
1437                 return err;
1438         }
1439         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1440                 snd_card_free(card);
1441                 return err;
1442         }
1443         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1444                 snd_card_free(card);
1445                 return err;
1446         }
1447         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1448                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1449                         snd_card_free(card);
1450                         return err;
1451                 }
1452         }
1453         if ((err = snd_ca0106_mixer(chip)) < 0) {
1454                 snd_card_free(card);
1455                 return err;
1456         }
1457
1458         snd_printdd("ca0106: probe for MIDI channel A ...");
1459         if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) {
1460                 snd_card_free(card);
1461                 snd_printdd(" failed, err=0x%x\n",err);
1462                 return err;
1463         }
1464         snd_printdd(" done.\n");
1465
1466         snd_ca0106_proc_init(chip);
1467
1468         if ((err = snd_card_register(card)) < 0) {
1469                 snd_card_free(card);
1470                 return err;
1471         }
1472
1473         pci_set_drvdata(pci, card);
1474         dev++;
1475         return 0;
1476 }
1477
1478 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1479 {
1480         snd_card_free(pci_get_drvdata(pci));
1481         pci_set_drvdata(pci, NULL);
1482 }
1483
1484 // PCI IDs
1485 static struct pci_device_id snd_ca0106_ids[] = {
1486         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1487         { 0, }
1488 };
1489 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1490
1491 // pci_driver definition
1492 static struct pci_driver driver = {
1493         .name = "CA0106",
1494         .id_table = snd_ca0106_ids,
1495         .probe = snd_ca0106_probe,
1496         .remove = __devexit_p(snd_ca0106_remove),
1497 };
1498
1499 // initialization of the module
1500 static int __init alsa_card_ca0106_init(void)
1501 {
1502         int err;
1503
1504         if ((err = pci_register_driver(&driver)) > 0)
1505                 return err;
1506
1507         return 0;
1508 }
1509
1510 // clean up the module
1511 static void __exit alsa_card_ca0106_exit(void)
1512 {
1513         pci_unregister_driver(&driver);
1514 }
1515
1516 module_init(alsa_card_ca0106_init)
1517 module_exit(alsa_card_ca0106_exit)