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TOMOYO Linux Cross Reference
Linux/sound/pci/ca0106/ca0106_main.c

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  1 /*
  2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
  3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
  4  *  Version: 0.0.25
  5  *
  6  *  FEATURES currently supported:
  7  *    Front, Rear and Center/LFE.
  8  *    Surround40 and Surround51.
  9  *    Capture from MIC an LINE IN input.
 10  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
 11  *    (One can use a standard mono mini-jack to one RCA plugs cable.
 12  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
 13  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
 14  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
 15  *    Notes on how to capture sound:
 16  *      The AC97 is used in the PLAYBACK direction.
 17  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
 18  *      So, to record from the MIC, set the MIC Playback volume to max,
 19  *      unmute the MIC and turn up the MASTER Playback volume.
 20  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
 21  *   
 22  *    The only playback controls that currently do anything are: -
 23  *    Analog Front
 24  *    Analog Rear
 25  *    Analog Center/LFE
 26  *    SPDIF Front
 27  *    SPDIF Rear
 28  *    SPDIF Center/LFE
 29  *   
 30  *    For capture from Mic in or Line in.
 31  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
 32  * 
 33  *    CAPTURE feedback into PLAYBACK
 34  * 
 35  *  Changelog:
 36  *    Support interrupts per period.
 37  *    Removed noise from Center/LFE channel when in Analog mode.
 38  *    Rename and remove mixer controls.
 39  *  0.0.6
 40  *    Use separate card based DMA buffer for periods table list.
 41  *  0.0.7
 42  *    Change remove and rename ctrls into lists.
 43  *  0.0.8
 44  *    Try to fix capture sources.
 45  *  0.0.9
 46  *    Fix AC3 output.
 47  *    Enable S32_LE format support.
 48  *  0.0.10
 49  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
 50  *  0.0.11
 51  *    Add Model name recognition.
 52  *  0.0.12
 53  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
 54  *    Remove redundent "voice" handling.
 55  *  0.0.13
 56  *    Single trigger call for multi channels.
 57  *  0.0.14
 58  *    Set limits based on what the sound card hardware can do.
 59  *    playback periods_min=2, periods_max=8
 60  *    capture hw constraints require period_size = n * 64 bytes.
 61  *    playback hw constraints require period_size = n * 64 bytes.
 62  *  0.0.15
 63  *    Minor updates.
 64  *  0.0.16
 65  *    Implement 192000 sample rate.
 66  *  0.0.17
 67  *    Add support for SB0410 and SB0413.
 68  *  0.0.18
 69  *    Modified Copyright message.
 70  *  0.0.19
 71  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
 72  *    The output codec needs resetting, otherwise all output is muted.
 73  *  0.0.20
 74  *    Merge "pci_disable_device(pci);" fixes.
 75  *  0.0.21
 76  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
 77  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
 78  *  0.0.22
 79  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
 80  *  0.0.23
 81  *    Implement support for Line-in capture on SB Live 24bit.
 82  *  0.0.24
 83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
 84  *  0.0.25
 85  *    Powerdown SPI DAC channels when not in use
 86  *
 87  *  BUGS:
 88  *    Some stability problems when unloading the snd-ca0106 kernel module.
 89  *    --
 90  *
 91  *  TODO:
 92  *    4 Capture channels, only one implemented so far.
 93  *    Other capture rates apart from 48khz not implemented.
 94  *    MIDI
 95  *    --
 96  *  GENERAL INFO:
 97  *    Model: SB0310
 98  *    P17 Chip: CA0106-DAT
 99  *    AC97 Codec: STAC 9721
100  *    ADC: Philips 1361T (Stereo 24bit)
101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
102  *
103  *  GENERAL INFO:
104  *    Model: SB0410
105  *    P17 Chip: CA0106-DAT
106  *    AC97 Codec: None
107  *    ADC: WM8775EDS (4 Channel)
108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
109  *    SPDIF Out control switches between Mic in and SPDIF out.
110  *    No sound out or mic input working yet.
111  * 
112  *  GENERAL INFO:
113  *    Model: SB0413
114  *    P17 Chip: CA0106-DAT
115  *    AC97 Codec: None.
116  *    ADC: Unknown
117  *    DAC: Unknown
118  *    Trying to handle it like the SB0410.
119  *
120  *  This code was initially based on code from ALSA's emu10k1x.c which is:
121  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
122  *
123  *   This program is free software; you can redistribute it and/or modify
124  *   it under the terms of the GNU General Public License as published by
125  *   the Free Software Foundation; either version 2 of the License, or
126  *   (at your option) any later version.
127  *
128  *   This program is distributed in the hope that it will be useful,
129  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
130  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
131  *   GNU General Public License for more details.
132  *
133  *   You should have received a copy of the GNU General Public License
134  *   along with this program; if not, write to the Free Software
135  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
136  *
137  */
138 #include <linux/delay.h>
139 #include <linux/init.h>
140 #include <linux/interrupt.h>
141 #include <linux/pci.h>
142 #include <linux/slab.h>
143 #include <linux/module.h>
144 #include <linux/dma-mapping.h>
145 #include <sound/core.h>
146 #include <sound/initval.h>
147 #include <sound/pcm.h>
148 #include <sound/ac97_codec.h>
149 #include <sound/info.h>
150 
151 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
152 MODULE_DESCRIPTION("CA0106");
153 MODULE_LICENSE("GPL");
154 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
155 
156 // module parameters (see "Module Parameters")
157 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
158 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
159 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
160 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
161 
162 module_param_array(index, int, NULL, 0444);
163 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
164 module_param_array(id, charp, NULL, 0444);
165 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
166 module_param_array(enable, bool, NULL, 0444);
167 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
168 module_param_array(subsystem, uint, NULL, 0444);
169 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
170 
171 #include "ca0106.h"
172 
173 static struct snd_ca0106_details ca0106_chip_details[] = {
174          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
175          /* It is really just a normal SB Live 24bit. */
176          /* Tested:
177           * See ALSA bug#3251
178           */
179          { .serial = 0x10131102,
180            .name   = "X-Fi Extreme Audio [SBxxxx]",
181            .gpio_type = 1,
182            .i2c_adc = 1 } ,
183          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
184          /* It is really just a normal SB Live 24bit. */
185          /*
186           * CTRL:CA0111-WTLF
187           * ADC: WM8775SEDS
188           * DAC: CS4382-KQZ
189           */
190          /* Tested:
191           * Playback on front, rear, center/lfe speakers
192           * Capture from Mic in.
193           * Not-Tested:
194           * Capture from Line in.
195           * Playback to digital out.
196           */
197          { .serial = 0x10121102,
198            .name   = "X-Fi Extreme Audio [SB0790]",
199            .gpio_type = 1,
200            .i2c_adc = 1 } ,
201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
202          /* AudigyLS[SB0310] */
203          { .serial = 0x10021102,
204            .name   = "AudigyLS [SB0310]",
205            .ac97   = 1 } , 
206          /* Unknown AudigyLS that also says SB0310 on it */
207          { .serial = 0x10051102,
208            .name   = "AudigyLS [SB0310b]",
209            .ac97   = 1 } ,
210          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
211          { .serial = 0x10061102,
212            .name   = "Live! 7.1 24bit [SB0410]",
213            .gpio_type = 1,
214            .i2c_adc = 1 } ,
215          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
216          { .serial = 0x10071102,
217            .name   = "Live! 7.1 24bit [SB0413]",
218            .gpio_type = 1,
219            .i2c_adc = 1 } ,
220          /* New Audigy SE. Has a different DAC. */
221          /* SB0570:
222           * CTRL:CA0106-DAT
223           * ADC: WM8775EDS
224           * DAC: WM8768GEDS
225           */
226          { .serial = 0x100a1102,
227            .name   = "Audigy SE [SB0570]",
228            .gpio_type = 1,
229            .i2c_adc = 1,
230            .spi_dac = 0x4021 } ,
231          /* New Audigy LS. Has a different DAC. */
232          /* SB0570:
233           * CTRL:CA0106-DAT
234           * ADC: WM8775EDS
235           * DAC: WM8768GEDS
236           */
237          { .serial = 0x10111102,
238            .name   = "Audigy SE OEM [SB0570a]",
239            .gpio_type = 1,
240            .i2c_adc = 1,
241            .spi_dac = 0x4021 } ,
242         /* Sound Blaster 5.1vx
243          * Tested: Playback on front, rear, center/lfe speakers
244          * Not-Tested: Capture
245          */
246         { .serial = 0x10041102,
247           .name   = "Sound Blaster 5.1vx [SB1070]",
248           .gpio_type = 1,
249           .i2c_adc = 0,
250           .spi_dac = 0x0124
251          } ,
252          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
253          /* SB0438
254           * CTRL:CA0106-DAT
255           * ADC: WM8775SEDS
256           * DAC: CS4382-KQZ
257           */
258          { .serial = 0x10091462,
259            .name   = "MSI K8N Diamond MB [SB0438]",
260            .gpio_type = 2,
261            .i2c_adc = 1 } ,
262          /* MSI K8N Diamond PLUS MB */
263          { .serial = 0x10091102,
264            .name   = "MSI K8N Diamond MB",
265            .gpio_type = 2,
266            .i2c_adc = 1,
267            .spi_dac = 0x4021 } ,
268         /* Giga-byte GA-G1975X mobo
269          * Novell bnc#395807
270          */
271         /* FIXME: the GPIO and I2C setting aren't tested well */
272         { .serial = 0x1458a006,
273           .name = "Giga-byte GA-G1975X",
274           .gpio_type = 1,
275           .i2c_adc = 1 },
276          /* Shuttle XPC SD31P which has an onboard Creative Labs
277           * Sound Blaster Live! 24-bit EAX
278           * high-definition 7.1 audio processor".
279           * Added using info from andrewvegan in alsa bug #1298
280           */
281          { .serial = 0x30381297,
282            .name   = "Shuttle XPC SD31P [SD31P]",
283            .gpio_type = 1,
284            .i2c_adc = 1 } ,
285         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
286          * Sound Blaster Live! 24-bit EAX
287          * high-definition 7.1 audio processor".
288          * Fixes ALSA bug#1600
289          */
290         { .serial = 0x30411297,
291           .name = "Shuttle XPC SD11G5 [SD11G5]",
292           .gpio_type = 1,
293           .i2c_adc = 1 } ,
294          { .serial = 0,
295            .name   = "AudigyLS [Unknown]" }
296 };
297 
298 /* hardware definition */
299 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
300         .info =                 SNDRV_PCM_INFO_MMAP | 
301                                 SNDRV_PCM_INFO_INTERLEAVED |
302                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
303                                 SNDRV_PCM_INFO_MMAP_VALID |
304                                 SNDRV_PCM_INFO_SYNC_START,
305         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
306         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
307                                  SNDRV_PCM_RATE_192000),
308         .rate_min =             48000,
309         .rate_max =             192000,
310         .channels_min =         2,  //1,
311         .channels_max =         2,  //6,
312         .buffer_bytes_max =     ((65536 - 64) * 8),
313         .period_bytes_min =     64,
314         .period_bytes_max =     (65536 - 64),
315         .periods_min =          2,
316         .periods_max =          8,
317         .fifo_size =            0,
318 };
319 
320 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
321         .info =                 (SNDRV_PCM_INFO_MMAP | 
322                                  SNDRV_PCM_INFO_INTERLEAVED |
323                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
324                                  SNDRV_PCM_INFO_MMAP_VALID),
325         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
326 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
327         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
328                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
329         .rate_min =             44100,
330 #else
331         .rates =                (SNDRV_PCM_RATE_48000 |
332                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
333         .rate_min =             48000,
334 #endif /* FIXME */
335         .rate_max =             192000,
336         .channels_min =         2,
337         .channels_max =         2,
338         .buffer_bytes_max =     65536 - 128,
339         .period_bytes_min =     64,
340         .period_bytes_max =     32768 - 64,
341         .periods_min =          2,
342         .periods_max =          2,
343         .fifo_size =            0,
344 };
345 
346 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu, 
347                                           unsigned int reg, 
348                                           unsigned int chn)
349 {
350         unsigned long flags;
351         unsigned int regptr, val;
352   
353         regptr = (reg << 16) | chn;
354 
355         spin_lock_irqsave(&emu->emu_lock, flags);
356         outl(regptr, emu->port + PTR);
357         val = inl(emu->port + DATA);
358         spin_unlock_irqrestore(&emu->emu_lock, flags);
359         return val;
360 }
361 
362 void snd_ca0106_ptr_write(struct snd_ca0106 *emu, 
363                                    unsigned int reg, 
364                                    unsigned int chn, 
365                                    unsigned int data)
366 {
367         unsigned int regptr;
368         unsigned long flags;
369 
370         regptr = (reg << 16) | chn;
371 
372         spin_lock_irqsave(&emu->emu_lock, flags);
373         outl(regptr, emu->port + PTR);
374         outl(data, emu->port + DATA);
375         spin_unlock_irqrestore(&emu->emu_lock, flags);
376 }
377 
378 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
379                                    unsigned int data)
380 {
381         unsigned int reset, set;
382         unsigned int reg, tmp;
383         int n, result;
384         reg = SPI;
385         if (data > 0xffff) /* Only 16bit values allowed */
386                 return 1;
387         tmp = snd_ca0106_ptr_read(emu, reg, 0);
388         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
389         set = reset | 0x10000; /* Set xxx1xxxx */
390         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
391         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
392         snd_ca0106_ptr_write(emu, reg, 0, set | data);
393         result = 1;
394         /* Wait for status bit to return to 0 */
395         for (n = 0; n < 100; n++) {
396                 udelay(10);
397                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
398                 if (!(tmp & 0x10000)) {
399                         result = 0;
400                         break;
401                 }
402         }
403         if (result) /* Timed out */
404                 return 1;
405         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
406         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
407         return 0;
408 }
409 
410 /* The ADC does not support i2c read, so only write is implemented */
411 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
412                                 u32 reg,
413                                 u32 value)
414 {
415         u32 tmp;
416         int timeout = 0;
417         int status;
418         int retry;
419         if ((reg > 0x7f) || (value > 0x1ff)) {
420                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
421                 return -EINVAL;
422         }
423 
424         tmp = reg << 25 | value << 16;
425         /*
426         snd_printk(KERN_DEBUG "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
427         */
428         /* Not sure what this I2C channel controls. */
429         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
430 
431         /* This controls the I2C connected to the WM8775 ADC Codec */
432         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
433 
434         for (retry = 0; retry < 10; retry++) {
435                 /* Send the data to i2c */
436                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
437                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
438                 tmp = 0;
439                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
440                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
441 
442                 /* Wait till the transaction ends */
443                 while (1) {
444                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
445                         /*snd_printk(KERN_DEBUG "I2C:status=0x%x\n", status);*/
446                         timeout++;
447                         if ((status & I2C_A_ADC_START) == 0)
448                                 break;
449 
450                         if (timeout > 1000)
451                                 break;
452                 }
453                 //Read back and see if the transaction is successful
454                 if ((status & I2C_A_ADC_ABORT) == 0)
455                         break;
456         }
457 
458         if (retry == 10) {
459                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
460                 return -EINVAL;
461         }
462     
463         return 0;
464 }
465 
466 
467 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
468 {
469         unsigned long flags;
470         unsigned int intr_enable;
471 
472         spin_lock_irqsave(&emu->emu_lock, flags);
473         intr_enable = inl(emu->port + INTE) | intrenb;
474         outl(intr_enable, emu->port + INTE);
475         spin_unlock_irqrestore(&emu->emu_lock, flags);
476 }
477 
478 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
479 {
480         unsigned long flags;
481         unsigned int intr_enable;
482 
483         spin_lock_irqsave(&emu->emu_lock, flags);
484         intr_enable = inl(emu->port + INTE) & ~intrenb;
485         outl(intr_enable, emu->port + INTE);
486         spin_unlock_irqrestore(&emu->emu_lock, flags);
487 }
488 
489 
490 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
491 {
492         kfree(runtime->private_data);
493 }
494 
495 static const int spi_dacd_reg[] = {
496         SPI_DACD0_REG,
497         SPI_DACD1_REG,
498         SPI_DACD2_REG,
499         0,
500         SPI_DACD4_REG,
501 };
502 static const int spi_dacd_bit[] = {
503         SPI_DACD0_BIT,
504         SPI_DACD1_BIT,
505         SPI_DACD2_BIT,
506         0,
507         SPI_DACD4_BIT,
508 };
509 
510 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
511 {
512         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
513                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
514                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
515                                      chip->spdif_str_bits[idx]);
516         }
517 }
518 
519 static int snd_ca0106_channel_dac(struct snd_ca0106_details *details,
520                                   int channel_id)
521 {
522         switch (channel_id) {
523         case PCM_FRONT_CHANNEL:
524                 return (details->spi_dac & 0xf000) >> (4 * 3);
525         case PCM_REAR_CHANNEL:
526                 return (details->spi_dac & 0x0f00) >> (4 * 2);
527         case PCM_CENTER_LFE_CHANNEL:
528                 return (details->spi_dac & 0x00f0) >> (4 * 1);
529         case PCM_UNKNOWN_CHANNEL:
530                 return (details->spi_dac & 0x000f) >> (4 * 0);
531         default:
532                 snd_printk(KERN_DEBUG "ca0106: unknown channel_id %d\n",
533                            channel_id);
534         }
535         return 0;
536 }
537 
538 static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
539                                     int power)
540 {
541         if (chip->details->spi_dac) {
542                 const int dac = snd_ca0106_channel_dac(chip->details,
543                                                        channel_id);
544                 const int reg = spi_dacd_reg[dac];
545                 const int bit = spi_dacd_bit[dac];
546 
547                 if (power)
548                         /* Power up */
549                         chip->spi_dac_reg[reg] &= ~bit;
550                 else
551                         /* Power down */
552                         chip->spi_dac_reg[reg] |= bit;
553                 return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
554         }
555         return 0;
556 }
557 
558 /* open_playback callback */
559 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
560                                                 int channel_id)
561 {
562         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
563         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
564         struct snd_ca0106_pcm *epcm;
565         struct snd_pcm_runtime *runtime = substream->runtime;
566         int err;
567 
568         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
569 
570         if (epcm == NULL)
571                 return -ENOMEM;
572         epcm->emu = chip;
573         epcm->substream = substream;
574         epcm->channel_id=channel_id;
575   
576         runtime->private_data = epcm;
577         runtime->private_free = snd_ca0106_pcm_free_substream;
578   
579         runtime->hw = snd_ca0106_playback_hw;
580 
581         channel->emu = chip;
582         channel->number = channel_id;
583 
584         channel->use = 1;
585         /*
586         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
587                channel_id, chip, channel);
588         */
589         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
590         channel->epcm = epcm;
591         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
592                 return err;
593         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
594                 return err;
595         snd_pcm_set_sync(substream);
596 
597         /* Front channel dac should already be on */
598         if (channel_id != PCM_FRONT_CHANNEL) {
599                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
600                 if (err < 0)
601                         return err;
602         }
603 
604         restore_spdif_bits(chip, channel_id);
605 
606         return 0;
607 }
608 
609 /* close callback */
610 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
611 {
612         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
613         struct snd_pcm_runtime *runtime = substream->runtime;
614         struct snd_ca0106_pcm *epcm = runtime->private_data;
615         chip->playback_channels[epcm->channel_id].use = 0;
616 
617         restore_spdif_bits(chip, epcm->channel_id);
618 
619         /* Front channel dac should stay on */
620         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
621                 int err;
622                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
623                 if (err < 0)
624                         return err;
625         }
626 
627         /* FIXME: maybe zero others */
628         return 0;
629 }
630 
631 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
632 {
633         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
634 }
635 
636 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
637 {
638         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
639 }
640 
641 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
642 {
643         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
644 }
645 
646 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
647 {
648         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
649 }
650 
651 /* open_capture callback */
652 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
653                                                int channel_id)
654 {
655         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
656         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
657         struct snd_ca0106_pcm *epcm;
658         struct snd_pcm_runtime *runtime = substream->runtime;
659         int err;
660 
661         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
662         if (epcm == NULL) {
663                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
664                 return -ENOMEM;
665         }
666         epcm->emu = chip;
667         epcm->substream = substream;
668         epcm->channel_id=channel_id;
669   
670         runtime->private_data = epcm;
671         runtime->private_free = snd_ca0106_pcm_free_substream;
672   
673         runtime->hw = snd_ca0106_capture_hw;
674 
675         channel->emu = chip;
676         channel->number = channel_id;
677 
678         channel->use = 1;
679         /*
680         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
681                channel_id, chip, channel);
682         */
683         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
684         channel->epcm = epcm;
685         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
686                 return err;
687         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
688         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
689                 return err;
690         return 0;
691 }
692 
693 /* close callback */
694 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
695 {
696         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
697         struct snd_pcm_runtime *runtime = substream->runtime;
698         struct snd_ca0106_pcm *epcm = runtime->private_data;
699         chip->capture_channels[epcm->channel_id].use = 0;
700         /* FIXME: maybe zero others */
701         return 0;
702 }
703 
704 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
705 {
706         return snd_ca0106_pcm_open_capture_channel(substream, 0);
707 }
708 
709 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
710 {
711         return snd_ca0106_pcm_open_capture_channel(substream, 1);
712 }
713 
714 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
715 {
716         return snd_ca0106_pcm_open_capture_channel(substream, 2);
717 }
718 
719 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
720 {
721         return snd_ca0106_pcm_open_capture_channel(substream, 3);
722 }
723 
724 /* hw_params callback */
725 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
726                                       struct snd_pcm_hw_params *hw_params)
727 {
728         return snd_pcm_lib_malloc_pages(substream,
729                                         params_buffer_bytes(hw_params));
730 }
731 
732 /* hw_free callback */
733 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
734 {
735         return snd_pcm_lib_free_pages(substream);
736 }
737 
738 /* hw_params callback */
739 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
740                                       struct snd_pcm_hw_params *hw_params)
741 {
742         return snd_pcm_lib_malloc_pages(substream,
743                                         params_buffer_bytes(hw_params));
744 }
745 
746 /* hw_free callback */
747 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
748 {
749         return snd_pcm_lib_free_pages(substream);
750 }
751 
752 /* prepare playback callback */
753 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
754 {
755         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
756         struct snd_pcm_runtime *runtime = substream->runtime;
757         struct snd_ca0106_pcm *epcm = runtime->private_data;
758         int channel = epcm->channel_id;
759         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
760         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
761         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
762         u32 hcfg_set = 0x00000000;
763         u32 hcfg;
764         u32 reg40_mask = 0x30000 << (channel<<1);
765         u32 reg40_set = 0;
766         u32 reg40;
767         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
768         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
769         u32 reg71_set = 0;
770         u32 reg71;
771         int i;
772         
773 #if 0 /* debug */
774         snd_printk(KERN_DEBUG
775                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
776                    "channels=%d, buffer_size=%ld, period_size=%ld, "
777                    "periods=%u, frames_to_bytes=%d\n",
778                    channel, runtime->rate, runtime->format,
779                    runtime->channels, runtime->buffer_size,
780                    runtime->period_size, runtime->periods,
781                    frames_to_bytes(runtime, 1));
782         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
783                    runtime->dma_addr, runtime->dma_area, table_base);
784         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
785                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
786 #endif /* debug */
787         /* Rate can be set per channel. */
788         /* reg40 control host to fifo */
789         /* reg71 controls DAC rate. */
790         switch (runtime->rate) {
791         case 44100:
792                 reg40_set = 0x10000 << (channel<<1);
793                 reg71_set = 0x01010000; 
794                 break;
795         case 48000:
796                 reg40_set = 0;
797                 reg71_set = 0; 
798                 break;
799         case 96000:
800                 reg40_set = 0x20000 << (channel<<1);
801                 reg71_set = 0x02020000; 
802                 break;
803         case 192000:
804                 reg40_set = 0x30000 << (channel<<1);
805                 reg71_set = 0x03030000; 
806                 break;
807         default:
808                 reg40_set = 0;
809                 reg71_set = 0; 
810                 break;
811         }
812         /* Format is a global setting */
813         /* FIXME: Only let the first channel accessed set this. */
814         switch (runtime->format) {
815         case SNDRV_PCM_FORMAT_S16_LE:
816                 hcfg_set = 0;
817                 break;
818         case SNDRV_PCM_FORMAT_S32_LE:
819                 hcfg_set = HCFG_PLAYBACK_S32_LE;
820                 break;
821         default:
822                 hcfg_set = 0;
823                 break;
824         }
825         hcfg = inl(emu->port + HCFG) ;
826         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
827         outl(hcfg, emu->port + HCFG);
828         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
829         reg40 = (reg40 & ~reg40_mask) | reg40_set;
830         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
831         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
832         reg71 = (reg71 & ~reg71_mask) | reg71_set;
833         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
834 
835         /* FIXME: Check emu->buffer.size before actually writing to it. */
836         for(i=0; i < runtime->periods; i++) {
837                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
838                 table_base[i*2+1] = period_size_bytes << 16;
839         }
840  
841         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
842         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
843         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
844         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
845         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
846         /* FIXME  test what 0 bytes does. */
847         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
848         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
849         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
850         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
851         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
852 #if 0
853         snd_ca0106_ptr_write(emu, SPCS0, 0,
854                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
855                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
856                                SPCS_GENERATIONSTATUS | 0x00001200 |
857                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
858 #endif
859 
860         return 0;
861 }
862 
863 /* prepare capture callback */
864 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
865 {
866         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
867         struct snd_pcm_runtime *runtime = substream->runtime;
868         struct snd_ca0106_pcm *epcm = runtime->private_data;
869         int channel = epcm->channel_id;
870         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
871         u32 hcfg_set = 0x00000000;
872         u32 hcfg;
873         u32 over_sampling=0x2;
874         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
875         u32 reg71_set = 0;
876         u32 reg71;
877         
878 #if 0 /* debug */
879         snd_printk(KERN_DEBUG
880                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
881                    "channels=%d, buffer_size=%ld, period_size=%ld, "
882                    "periods=%u, frames_to_bytes=%d\n",
883                    channel, runtime->rate, runtime->format,
884                    runtime->channels, runtime->buffer_size,
885                    runtime->period_size, runtime->periods,
886                    frames_to_bytes(runtime, 1));
887         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
888                    runtime->dma_addr, runtime->dma_area, table_base);
889         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
890                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
891 #endif /* debug */
892         /* reg71 controls ADC rate. */
893         switch (runtime->rate) {
894         case 44100:
895                 reg71_set = 0x00004000;
896                 break;
897         case 48000:
898                 reg71_set = 0; 
899                 break;
900         case 96000:
901                 reg71_set = 0x00008000;
902                 over_sampling=0xa;
903                 break;
904         case 192000:
905                 reg71_set = 0x0000c000; 
906                 over_sampling=0xa;
907                 break;
908         default:
909                 reg71_set = 0; 
910                 break;
911         }
912         /* Format is a global setting */
913         /* FIXME: Only let the first channel accessed set this. */
914         switch (runtime->format) {
915         case SNDRV_PCM_FORMAT_S16_LE:
916                 hcfg_set = 0;
917                 break;
918         case SNDRV_PCM_FORMAT_S32_LE:
919                 hcfg_set = HCFG_CAPTURE_S32_LE;
920                 break;
921         default:
922                 hcfg_set = 0;
923                 break;
924         }
925         hcfg = inl(emu->port + HCFG) ;
926         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
927         outl(hcfg, emu->port + HCFG);
928         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
929         reg71 = (reg71 & ~reg71_mask) | reg71_set;
930         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
931         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
932                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
933         }
934 
935 
936         /*
937         printk(KERN_DEBUG
938                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
939                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
940                channel, runtime->rate, runtime->format, runtime->channels,
941                runtime->buffer_size, runtime->period_size,
942                frames_to_bytes(runtime, 1));
943         */
944         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
945         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
946         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
947         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
948 
949         return 0;
950 }
951 
952 /* trigger_playback callback */
953 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
954                                     int cmd)
955 {
956         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
957         struct snd_pcm_runtime *runtime;
958         struct snd_ca0106_pcm *epcm;
959         int channel;
960         int result = 0;
961         struct snd_pcm_substream *s;
962         u32 basic = 0;
963         u32 extended = 0;
964         u32 bits;
965         int running = 0;
966 
967         switch (cmd) {
968         case SNDRV_PCM_TRIGGER_START:
969         case SNDRV_PCM_TRIGGER_RESUME:
970                 running = 1;
971                 break;
972         case SNDRV_PCM_TRIGGER_STOP:
973         case SNDRV_PCM_TRIGGER_SUSPEND:
974         default:
975                 running = 0;
976                 break;
977         }
978         snd_pcm_group_for_each_entry(s, substream) {
979                 if (snd_pcm_substream_chip(s) != emu ||
980                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
981                         continue;
982                 runtime = s->runtime;
983                 epcm = runtime->private_data;
984                 channel = epcm->channel_id;
985                 /* snd_printk(KERN_DEBUG "channel=%d\n", channel); */
986                 epcm->running = running;
987                 basic |= (0x1 << channel);
988                 extended |= (0x10 << channel);
989                 snd_pcm_trigger_done(s, substream);
990         }
991         /* snd_printk(KERN_DEBUG "basic=0x%x, extended=0x%x\n",basic, extended); */
992 
993         switch (cmd) {
994         case SNDRV_PCM_TRIGGER_START:
995         case SNDRV_PCM_TRIGGER_RESUME:
996                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
997                 bits |= extended;
998                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
999                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1000                 bits |= basic;
1001                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1002                 break;
1003         case SNDRV_PCM_TRIGGER_STOP:
1004         case SNDRV_PCM_TRIGGER_SUSPEND:
1005                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1006                 bits &= ~basic;
1007                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1008                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1009                 bits &= ~extended;
1010                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1011                 break;
1012         default:
1013                 result = -EINVAL;
1014                 break;
1015         }
1016         return result;
1017 }
1018 
1019 /* trigger_capture callback */
1020 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
1021                                     int cmd)
1022 {
1023         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1024         struct snd_pcm_runtime *runtime = substream->runtime;
1025         struct snd_ca0106_pcm *epcm = runtime->private_data;
1026         int channel = epcm->channel_id;
1027         int result = 0;
1028 
1029         switch (cmd) {
1030         case SNDRV_PCM_TRIGGER_START:
1031                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1032                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1033                 epcm->running = 1;
1034                 break;
1035         case SNDRV_PCM_TRIGGER_STOP:
1036                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1037                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1038                 epcm->running = 0;
1039                 break;
1040         default:
1041                 result = -EINVAL;
1042                 break;
1043         }
1044         return result;
1045 }
1046 
1047 /* pointer_playback callback */
1048 static snd_pcm_uframes_t
1049 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1050 {
1051         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1052         struct snd_pcm_runtime *runtime = substream->runtime;
1053         struct snd_ca0106_pcm *epcm = runtime->private_data;
1054         unsigned int ptr, prev_ptr;
1055         int channel = epcm->channel_id;
1056         int timeout = 10;
1057 
1058         if (!epcm->running)
1059                 return 0;
1060 
1061         prev_ptr = -1;
1062         do {
1063                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1064                 ptr = (ptr >> 3) * runtime->period_size;
1065                 ptr += bytes_to_frames(runtime,
1066                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1067                 if (ptr >= runtime->buffer_size)
1068                         ptr -= runtime->buffer_size;
1069                 if (prev_ptr == ptr)
1070                         return ptr;
1071                 prev_ptr = ptr;
1072         } while (--timeout);
1073         snd_printk(KERN_WARNING "ca0106: unstable DMA pointer!\n");
1074         return 0;
1075 }
1076 
1077 /* pointer_capture callback */
1078 static snd_pcm_uframes_t
1079 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1080 {
1081         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1082         struct snd_pcm_runtime *runtime = substream->runtime;
1083         struct snd_ca0106_pcm *epcm = runtime->private_data;
1084         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1085         int channel = epcm->channel_id;
1086 
1087         if (!epcm->running)
1088                 return 0;
1089 
1090         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1091         ptr2 = bytes_to_frames(runtime, ptr1);
1092         ptr=ptr2;
1093         if (ptr >= runtime->buffer_size)
1094                 ptr -= runtime->buffer_size;
1095         /*
1096         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1097                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1098                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1099                (int)runtime->period_size, (int)runtime->frame_bits,
1100                (int)runtime->rate);
1101         */
1102         return ptr;
1103 }
1104 
1105 /* operators */
1106 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1107         .open =        snd_ca0106_pcm_open_playback_front,
1108         .close =       snd_ca0106_pcm_close_playback,
1109         .ioctl =       snd_pcm_lib_ioctl,
1110         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1111         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1112         .prepare =     snd_ca0106_pcm_prepare_playback,
1113         .trigger =     snd_ca0106_pcm_trigger_playback,
1114         .pointer =     snd_ca0106_pcm_pointer_playback,
1115 };
1116 
1117 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1118         .open =        snd_ca0106_pcm_open_0_capture,
1119         .close =       snd_ca0106_pcm_close_capture,
1120         .ioctl =       snd_pcm_lib_ioctl,
1121         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1122         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1123         .prepare =     snd_ca0106_pcm_prepare_capture,
1124         .trigger =     snd_ca0106_pcm_trigger_capture,
1125         .pointer =     snd_ca0106_pcm_pointer_capture,
1126 };
1127 
1128 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1129         .open =        snd_ca0106_pcm_open_1_capture,
1130         .close =       snd_ca0106_pcm_close_capture,
1131         .ioctl =       snd_pcm_lib_ioctl,
1132         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1133         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1134         .prepare =     snd_ca0106_pcm_prepare_capture,
1135         .trigger =     snd_ca0106_pcm_trigger_capture,
1136         .pointer =     snd_ca0106_pcm_pointer_capture,
1137 };
1138 
1139 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1140         .open =        snd_ca0106_pcm_open_2_capture,
1141         .close =       snd_ca0106_pcm_close_capture,
1142         .ioctl =       snd_pcm_lib_ioctl,
1143         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1144         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1145         .prepare =     snd_ca0106_pcm_prepare_capture,
1146         .trigger =     snd_ca0106_pcm_trigger_capture,
1147         .pointer =     snd_ca0106_pcm_pointer_capture,
1148 };
1149 
1150 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1151         .open =        snd_ca0106_pcm_open_3_capture,
1152         .close =       snd_ca0106_pcm_close_capture,
1153         .ioctl =       snd_pcm_lib_ioctl,
1154         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1155         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1156         .prepare =     snd_ca0106_pcm_prepare_capture,
1157         .trigger =     snd_ca0106_pcm_trigger_capture,
1158         .pointer =     snd_ca0106_pcm_pointer_capture,
1159 };
1160 
1161 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1162         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1163         .close =        snd_ca0106_pcm_close_playback,
1164         .ioctl =        snd_pcm_lib_ioctl,
1165         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1166         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1167         .prepare =      snd_ca0106_pcm_prepare_playback,     
1168         .trigger =      snd_ca0106_pcm_trigger_playback,  
1169         .pointer =      snd_ca0106_pcm_pointer_playback, 
1170 };
1171 
1172 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1173         .open =         snd_ca0106_pcm_open_playback_unknown,
1174         .close =        snd_ca0106_pcm_close_playback,
1175         .ioctl =        snd_pcm_lib_ioctl,
1176         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1177         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1178         .prepare =      snd_ca0106_pcm_prepare_playback,     
1179         .trigger =      snd_ca0106_pcm_trigger_playback,  
1180         .pointer =      snd_ca0106_pcm_pointer_playback, 
1181 };
1182 
1183 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1184         .open =         snd_ca0106_pcm_open_playback_rear,
1185         .close =        snd_ca0106_pcm_close_playback,
1186         .ioctl =        snd_pcm_lib_ioctl,
1187         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1188                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1189         .prepare =      snd_ca0106_pcm_prepare_playback,     
1190         .trigger =      snd_ca0106_pcm_trigger_playback,  
1191         .pointer =      snd_ca0106_pcm_pointer_playback, 
1192 };
1193 
1194 
1195 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1196                                              unsigned short reg)
1197 {
1198         struct snd_ca0106 *emu = ac97->private_data;
1199         unsigned long flags;
1200         unsigned short val;
1201 
1202         spin_lock_irqsave(&emu->emu_lock, flags);
1203         outb(reg, emu->port + AC97ADDRESS);
1204         val = inw(emu->port + AC97DATA);
1205         spin_unlock_irqrestore(&emu->emu_lock, flags);
1206         return val;
1207 }
1208 
1209 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1210                                     unsigned short reg, unsigned short val)
1211 {
1212         struct snd_ca0106 *emu = ac97->private_data;
1213         unsigned long flags;
1214   
1215         spin_lock_irqsave(&emu->emu_lock, flags);
1216         outb(reg, emu->port + AC97ADDRESS);
1217         outw(val, emu->port + AC97DATA);
1218         spin_unlock_irqrestore(&emu->emu_lock, flags);
1219 }
1220 
1221 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1222 {
1223         struct snd_ac97_bus *pbus;
1224         struct snd_ac97_template ac97;
1225         int err;
1226         static struct snd_ac97_bus_ops ops = {
1227                 .write = snd_ca0106_ac97_write,
1228                 .read = snd_ca0106_ac97_read,
1229         };
1230   
1231         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1232                 return err;
1233         pbus->no_vra = 1; /* we don't need VRA */
1234 
1235         memset(&ac97, 0, sizeof(ac97));
1236         ac97.private_data = chip;
1237         ac97.scaps = AC97_SCAP_NO_SPDIF;
1238         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1239 }
1240 
1241 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1242 
1243 static int snd_ca0106_free(struct snd_ca0106 *chip)
1244 {
1245         if (chip->res_port != NULL) {
1246                 /* avoid access to already used hardware */
1247                 ca0106_stop_chip(chip);
1248         }
1249         if (chip->irq >= 0)
1250                 free_irq(chip->irq, chip);
1251         // release the data
1252 #if 1
1253         if (chip->buffer.area)
1254                 snd_dma_free_pages(&chip->buffer);
1255 #endif
1256 
1257         // release the i/o port
1258         release_and_free_resource(chip->res_port);
1259 
1260         pci_disable_device(chip->pci);
1261         kfree(chip);
1262         return 0;
1263 }
1264 
1265 static int snd_ca0106_dev_free(struct snd_device *device)
1266 {
1267         struct snd_ca0106 *chip = device->device_data;
1268         return snd_ca0106_free(chip);
1269 }
1270 
1271 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1272 {
1273         unsigned int status;
1274 
1275         struct snd_ca0106 *chip = dev_id;
1276         int i;
1277         int mask;
1278         unsigned int stat76;
1279         struct snd_ca0106_channel *pchannel;
1280 
1281         status = inl(chip->port + IPR);
1282         if (! status)
1283                 return IRQ_NONE;
1284 
1285         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1286         /*
1287         snd_printk(KERN_DEBUG "interrupt status = 0x%08x, stat76=0x%08x\n",
1288                    status, stat76);
1289         snd_printk(KERN_DEBUG "ptr=0x%08x\n",
1290                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1291         */
1292         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1293         for(i = 0; i < 4; i++) {
1294                 pchannel = &(chip->playback_channels[i]);
1295                 if (stat76 & mask) {
1296 /* FIXME: Select the correct substream for period elapsed */
1297                         if(pchannel->use) {
1298                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1299                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1300                         }
1301                 }
1302                 //printk(KERN_INFO "channel=%p\n",pchannel);
1303                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1304                 mask <<= 1;
1305         }
1306         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1307         for(i = 0; i < 4; i++) {
1308                 pchannel = &(chip->capture_channels[i]);
1309                 if (stat76 & mask) {
1310 /* FIXME: Select the correct substream for period elapsed */
1311                         if(pchannel->use) {
1312                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1313                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1314                         }
1315                 }
1316                 //printk(KERN_INFO "channel=%p\n",pchannel);
1317                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1318                 mask <<= 1;
1319         }
1320 
1321         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1322 
1323         if (chip->midi.dev_id &&
1324             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1325                 if (chip->midi.interrupt)
1326                         chip->midi.interrupt(&chip->midi, status);
1327                 else
1328                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1329         }
1330 
1331         // acknowledge the interrupt if necessary
1332         outl(status, chip->port+IPR);
1333 
1334         return IRQ_HANDLED;
1335 }
1336 
1337 static const struct snd_pcm_chmap_elem surround_map[] = {
1338         { .channels = 2,
1339           .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1340         { }
1341 };
1342 
1343 static const struct snd_pcm_chmap_elem clfe_map[] = {
1344         { .channels = 2,
1345           .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1346         { }
1347 };
1348 
1349 static const struct snd_pcm_chmap_elem side_map[] = {
1350         { .channels = 2,
1351           .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1352         { }
1353 };
1354 
1355 static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1356 {
1357         struct snd_pcm *pcm;
1358         struct snd_pcm_substream *substream;
1359         const struct snd_pcm_chmap_elem *map = NULL;
1360         int err;
1361   
1362         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1363         if (err < 0)
1364                 return err;
1365   
1366         pcm->private_data = emu;
1367 
1368         switch (device) {
1369         case 0:
1370           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1371           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1372           map = snd_pcm_std_chmaps;
1373           break;
1374         case 1:
1375           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1376           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1377           map = surround_map;
1378           break;
1379         case 2:
1380           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1381           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1382           map = clfe_map;
1383           break;
1384         case 3:
1385           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1386           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1387           map = side_map;
1388           break;
1389         }
1390 
1391         pcm->info_flags = 0;
1392         strcpy(pcm->name, "CA0106");
1393 
1394         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1395             substream; 
1396             substream = substream->next) {
1397                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1398                                                          SNDRV_DMA_TYPE_DEV, 
1399                                                          snd_dma_pci_data(emu->pci), 
1400                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1401                         return err;
1402         }
1403 
1404         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1405               substream; 
1406               substream = substream->next) {
1407                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1408                                                    SNDRV_DMA_TYPE_DEV, 
1409                                                    snd_dma_pci_data(emu->pci), 
1410                                                    64*1024, 64*1024)) < 0)
1411                         return err;
1412         }
1413   
1414         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1415                                      1 << 2, NULL);
1416         if (err < 0)
1417                 return err;
1418 
1419         emu->pcm[device] = pcm;
1420   
1421         return 0;
1422 }
1423 
1424 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1425 static unsigned int spi_dac_init[] = {
1426         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1427         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1428         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1429         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1430         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1431         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1432         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1433         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1434         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1435         SPI_REG(9,              0x00),
1436         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1437         SPI_REG(12,             0x00),
1438         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1439         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1440         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1441 };
1442 
1443 static unsigned int i2c_adc_init[][2] = {
1444         { 0x17, 0x00 }, /* Reset */
1445         { 0x07, 0x00 }, /* Timeout */
1446         { 0x0b, 0x22 },  /* Interface control */
1447         { 0x0c, 0x22 },  /* Master mode control */
1448         { 0x0d, 0x08 },  /* Powerdown control */
1449         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1450         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1451         { 0x10, 0x7b },  /* ALC Control 1 */
1452         { 0x11, 0x00 },  /* ALC Control 2 */
1453         { 0x12, 0x32 },  /* ALC Control 3 */
1454         { 0x13, 0x00 },  /* Noise gate control */
1455         { 0x14, 0xa6 },  /* Limiter control */
1456         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1457 };
1458 
1459 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1460 {
1461         int ch;
1462         unsigned int def_bits;
1463 
1464         outl(0, chip->port + INTE);
1465 
1466         /*
1467          *  Init to 0x02109204 :
1468          *  Clock accuracy    = 0     (1000ppm)
1469          *  Sample Rate       = 2     (48kHz)
1470          *  Audio Channel     = 1     (Left of 2)
1471          *  Source Number     = 0     (Unspecified)
1472          *  Generation Status = 1     (Original for Cat Code 12)
1473          *  Cat Code          = 12    (Digital Signal Mixer)
1474          *  Mode              = 0     (Mode 0)
1475          *  Emphasis          = 0     (None)
1476          *  CP                = 1     (Copyright unasserted)
1477          *  AN                = 0     (Audio data)
1478          *  P                 = 0     (Consumer)
1479          */
1480         def_bits =
1481                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1482                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1483                 SPCS_GENERATIONSTATUS | 0x00001200 |
1484                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1485         if (!resume) {
1486                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1487                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1488                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1489                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1490         }
1491         /* Only SPCS1 has been tested */
1492         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1493         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1494         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1495         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1496 
1497         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1498         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1499 
1500         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1501         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1502         outw(0x8000, chip->port + AC97DATA);
1503 #if 0 /* FIXME: what are these? */
1504         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1505         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1506         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1507         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1508 #endif
1509 
1510         /* OSS drivers set this. */
1511         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1512 
1513         /* Analog or Digital output */
1514         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1515         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1516          * Use 0x000f0000 for surround71
1517          */
1518         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1519 
1520         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1521         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1522         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1523 
1524         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1525         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1526         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1527          * Only lower 16 bits matter.
1528          */
1529         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1530         /* SPDIF IN Volume */
1531         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1532         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1533         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1534 
1535         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1536         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1537         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1538         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1539 
1540         for (ch = 0; ch < 4; ch++) {
1541                 /* Only high 16 bits matter */
1542                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1543                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1544 #if 0 /* Mute */
1545                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1546                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1547                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1548                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1549 #endif
1550         }
1551         if (chip->details->i2c_adc == 1) {
1552                 /* Select MIC, Line in, TAD in, AUX in */
1553                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1554                 /* Default to CAPTURE_SOURCE to i2s in */
1555                 if (!resume)
1556                         chip->capture_source = 3;
1557         } else if (chip->details->ac97 == 1) {
1558                 /* Default to AC97 in */
1559                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1560                 /* Default to CAPTURE_SOURCE to AC97 in */
1561                 if (!resume)
1562                         chip->capture_source = 4;
1563         } else {
1564                 /* Select MIC, Line in, TAD in, AUX in */
1565                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1566                 /* Default to Set CAPTURE_SOURCE to i2s in */
1567                 if (!resume)
1568                         chip->capture_source = 3;
1569         }
1570 
1571         if (chip->details->gpio_type == 2) {
1572                 /* The SB0438 use GPIO differently. */
1573                 /* FIXME: Still need to find out what the other GPIO bits do.
1574                  * E.g. For digital spdif out.
1575                  */
1576                 outl(0x0, chip->port+GPIO);
1577                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1578                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1579         } else if (chip->details->gpio_type == 1) {
1580                 /* The SB0410 and SB0413 use GPIO differently. */
1581                 /* FIXME: Still need to find out what the other GPIO bits do.
1582                  * E.g. For digital spdif out.
1583                  */
1584                 outl(0x0, chip->port+GPIO);
1585                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1586                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1587         } else {
1588                 outl(0x0, chip->port+GPIO);
1589                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1590                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1591         }
1592         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1593 
1594         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1595         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1596         /* outl(0x00001409, chip->port+HCFG); */
1597         /* outl(0x00000009, chip->port+HCFG); */
1598         /* AC97 2.0, Enable outputs. */
1599         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1600 
1601         if (chip->details->i2c_adc == 1) {
1602                 /* The SB0410 and SB0413 use I2C to control ADC. */
1603                 int size, n;
1604 
1605                 size = ARRAY_SIZE(i2c_adc_init);
1606                 /* snd_printk(KERN_DEBUG "I2C:array size=0x%x\n", size); */
1607                 for (n = 0; n < size; n++)
1608                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1609                                              i2c_adc_init[n][1]);
1610                 for (n = 0; n < 4; n++) {
1611                         chip->i2c_capture_volume[n][0] = 0xcf;
1612                         chip->i2c_capture_volume[n][1] = 0xcf;
1613                 }
1614                 chip->i2c_capture_source = 2; /* Line in */
1615                 /* Enable Line-in capture. MIC in currently untested. */
1616                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1617         }
1618 
1619         if (chip->details->spi_dac) {
1620                 /* The SB0570 use SPI to control DAC. */
1621                 int size, n;
1622 
1623                 size = ARRAY_SIZE(spi_dac_init);
1624                 for (n = 0; n < size; n++) {
1625                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1626 
1627                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1628                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1629                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1630                 }
1631 
1632                 /* Enable front dac only */
1633                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1634         }
1635 }
1636 
1637 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1638 {
1639         /* disable interrupts */
1640         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1641         outl(0, chip->port + INTE);
1642         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1643         udelay(1000);
1644         /* disable audio */
1645         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1646         outl(0, chip->port + HCFG);
1647         /* FIXME: We need to stop and DMA transfers here.
1648          *        But as I am not sure how yet, we cannot from the dma pages.
1649          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1650          */
1651 }
1652 
1653 static int snd_ca0106_create(int dev, struct snd_card *card,
1654                                          struct pci_dev *pci,
1655                                          struct snd_ca0106 **rchip)
1656 {
1657         struct snd_ca0106 *chip;
1658         struct snd_ca0106_details *c;
1659         int err;
1660         static struct snd_device_ops ops = {
1661                 .dev_free = snd_ca0106_dev_free,
1662         };
1663 
1664         *rchip = NULL;
1665 
1666         err = pci_enable_device(pci);
1667         if (err < 0)
1668                 return err;
1669         if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
1670             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1671                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1672                 pci_disable_device(pci);
1673                 return -ENXIO;
1674         }
1675 
1676         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1677         if (chip == NULL) {
1678                 pci_disable_device(pci);
1679                 return -ENOMEM;
1680         }
1681 
1682         chip->card = card;
1683         chip->pci = pci;
1684         chip->irq = -1;
1685 
1686         spin_lock_init(&chip->emu_lock);
1687 
1688         chip->port = pci_resource_start(pci, 0);
1689         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1690         if (!chip->res_port) {
1691                 snd_ca0106_free(chip);
1692                 printk(KERN_ERR "cannot allocate the port\n");
1693                 return -EBUSY;
1694         }
1695 
1696         if (request_irq(pci->irq, snd_ca0106_interrupt,
1697                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1698                 snd_ca0106_free(chip);
1699                 printk(KERN_ERR "cannot grab irq\n");
1700                 return -EBUSY;
1701         }
1702         chip->irq = pci->irq;
1703 
1704         /* This stores the periods table. */
1705         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1706                                 1024, &chip->buffer) < 0) {
1707                 snd_ca0106_free(chip);
1708                 return -ENOMEM;
1709         }
1710 
1711         pci_set_master(pci);
1712         /* read serial */
1713         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1714         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1715         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1716                chip->model, pci->revision, chip->serial);
1717         strcpy(card->driver, "CA0106");
1718         strcpy(card->shortname, "CA0106");
1719 
1720         for (c = ca0106_chip_details; c->serial; c++) {
1721                 if (subsystem[dev]) {
1722                         if (c->serial == subsystem[dev])
1723                                 break;
1724                 } else if (c->serial == chip->serial)
1725                         break;
1726         }
1727         chip->details = c;
1728         if (subsystem[dev]) {
1729                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1730                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1731                        c->name, chip->serial, subsystem[dev]);
1732         }
1733 
1734         sprintf(card->longname, "%s at 0x%lx irq %i",
1735                 c->name, chip->port, chip->irq);
1736 
1737         ca0106_init_chip(chip, 0);
1738 
1739         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1740         if (err < 0) {
1741                 snd_ca0106_free(chip);
1742                 return err;
1743         }
1744         *rchip = chip;
1745         return 0;
1746 }
1747 
1748 
1749 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1750 {
1751         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1752 }
1753 
1754 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1755 {
1756         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1757 }
1758 
1759 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1760 {
1761         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1762                                                   midi->port + idx, 0);
1763 }
1764 
1765 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1766 {
1767         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1768 }
1769 
1770 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1771 {
1772         return ((struct snd_ca0106 *)dev_id)->card;
1773 }
1774 
1775 static int ca0106_dev_id_port(void *dev_id)
1776 {
1777         return ((struct snd_ca0106 *)dev_id)->port;
1778 }
1779 
1780 static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1781 {
1782         struct snd_ca_midi *midi;
1783         char *name;
1784         int err;
1785 
1786         if (channel == CA0106_MIDI_CHAN_B) {
1787                 name = "CA0106 MPU-401 (UART) B";
1788                 midi =  &chip->midi2;
1789                 midi->tx_enable = INTE_MIDI_TX_B;
1790                 midi->rx_enable = INTE_MIDI_RX_B;
1791                 midi->ipr_tx = IPR_MIDI_TX_B;
1792                 midi->ipr_rx = IPR_MIDI_RX_B;
1793                 midi->port = MIDI_UART_B_DATA;
1794         } else {
1795                 name = "CA0106 MPU-401 (UART)";
1796                 midi =  &chip->midi;
1797                 midi->tx_enable = INTE_MIDI_TX_A;
1798                 midi->rx_enable = INTE_MIDI_TX_B;
1799                 midi->ipr_tx = IPR_MIDI_TX_A;
1800                 midi->ipr_rx = IPR_MIDI_RX_A;
1801                 midi->port = MIDI_UART_A_DATA;
1802         }
1803 
1804         midi->reset = CA0106_MPU401_RESET;
1805         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1806         midi->ack = CA0106_MPU401_ACK;
1807 
1808         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1809         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1810 
1811         midi->channel = channel;
1812 
1813         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1814         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1815 
1816         midi->read = ca0106_midi_read;
1817         midi->write = ca0106_midi_write;
1818 
1819         midi->get_dev_id_card = ca0106_dev_id_card;
1820         midi->get_dev_id_port = ca0106_dev_id_port;
1821 
1822         midi->dev_id = chip;
1823         
1824         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1825                 return err;
1826 
1827         return 0;
1828 }
1829 
1830 
1831 static int snd_ca0106_probe(struct pci_dev *pci,
1832                                         const struct pci_device_id *pci_id)
1833 {
1834         static int dev;
1835         struct snd_card *card;
1836         struct snd_ca0106 *chip;
1837         int i, err;
1838 
1839         if (dev >= SNDRV_CARDS)
1840                 return -ENODEV;
1841         if (!enable[dev]) {
1842                 dev++;
1843                 return -ENOENT;
1844         }
1845 
1846         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1847         if (err < 0)
1848                 return err;
1849 
1850         err = snd_ca0106_create(dev, card, pci, &chip);
1851         if (err < 0)
1852                 goto error;
1853         card->private_data = chip;
1854 
1855         for (i = 0; i < 4; i++) {
1856                 err = snd_ca0106_pcm(chip, i);
1857                 if (err < 0)
1858                         goto error;
1859         }
1860 
1861         if (chip->details->ac97 == 1) {
1862                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1863                 err = snd_ca0106_ac97(chip);
1864                 if (err < 0)
1865                         goto error;
1866         }
1867         err = snd_ca0106_mixer(chip);
1868         if (err < 0)
1869                 goto error;
1870 
1871         snd_printdd("ca0106: probe for MIDI channel A ...");
1872         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1873         if (err < 0)
1874                 goto error;
1875         snd_printdd(" done.\n");
1876 
1877 #ifdef CONFIG_PROC_FS
1878         snd_ca0106_proc_init(chip);
1879 #endif
1880 
1881         snd_card_set_dev(card, &pci->dev);
1882 
1883         err = snd_card_register(card);
1884         if (err < 0)
1885                 goto error;
1886 
1887         pci_set_drvdata(pci, card);
1888         dev++;
1889         return 0;
1890 
1891  error:
1892         snd_card_free(card);
1893         return err;
1894 }
1895 
1896 static void snd_ca0106_remove(struct pci_dev *pci)
1897 {
1898         snd_card_free(pci_get_drvdata(pci));
1899 }
1900 
1901 #ifdef CONFIG_PM_SLEEP
1902 static int snd_ca0106_suspend(struct device *dev)
1903 {
1904         struct pci_dev *pci = to_pci_dev(dev);
1905         struct snd_card *card = dev_get_drvdata(dev);
1906         struct snd_ca0106 *chip = card->private_data;
1907         int i;
1908 
1909         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1910         for (i = 0; i < 4; i++)
1911                 snd_pcm_suspend_all(chip->pcm[i]);
1912         if (chip->details->ac97)
1913                 snd_ac97_suspend(chip->ac97);
1914         snd_ca0106_mixer_suspend(chip);
1915 
1916         ca0106_stop_chip(chip);
1917 
1918         pci_disable_device(pci);
1919         pci_save_state(pci);
1920         pci_set_power_state(pci, PCI_D3hot);
1921         return 0;
1922 }
1923 
1924 static int snd_ca0106_resume(struct device *dev)
1925 {
1926         struct pci_dev *pci = to_pci_dev(dev);
1927         struct snd_card *card = dev_get_drvdata(dev);
1928         struct snd_ca0106 *chip = card->private_data;
1929         int i;
1930 
1931         pci_set_power_state(pci, PCI_D0);
1932         pci_restore_state(pci);
1933 
1934         if (pci_enable_device(pci) < 0) {
1935                 snd_card_disconnect(card);
1936                 return -EIO;
1937         }
1938 
1939         pci_set_master(pci);
1940 
1941         ca0106_init_chip(chip, 1);
1942 
1943         if (chip->details->ac97)
1944                 snd_ac97_resume(chip->ac97);
1945         snd_ca0106_mixer_resume(chip);
1946         if (chip->details->spi_dac) {
1947                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1948                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1949         }
1950 
1951         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1952         return 0;
1953 }
1954 
1955 static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1956 #define SND_CA0106_PM_OPS       &snd_ca0106_pm
1957 #else
1958 #define SND_CA0106_PM_OPS       NULL
1959 #endif
1960 
1961 // PCI IDs
1962 static DEFINE_PCI_DEVICE_TABLE(snd_ca0106_ids) = {
1963         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1964         { 0, }
1965 };
1966 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1967 
1968 // pci_driver definition
1969 static struct pci_driver ca0106_driver = {
1970         .name = KBUILD_MODNAME,
1971         .id_table = snd_ca0106_ids,
1972         .probe = snd_ca0106_probe,
1973         .remove = snd_ca0106_remove,
1974         .driver = {
1975                 .pm = SND_CA0106_PM_OPS,
1976         },
1977 };
1978 
1979 module_pci_driver(ca0106_driver);
1980 

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