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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 const 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 const 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                 dev_err(emu->card->dev, "i2c_write: invalid values.\n");
421                 return -EINVAL;
422         }
423 
424         tmp = reg << 25 | value << 16;
425         /*
426         dev_dbg(emu->card->dev, "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                         /*dev_dbg(emu->card->dev, "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                 dev_err(emu->card->dev, "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 *chip,
520                                   struct snd_ca0106_details *details,
521                                   int channel_id)
522 {
523         switch (channel_id) {
524         case PCM_FRONT_CHANNEL:
525                 return (details->spi_dac & 0xf000) >> (4 * 3);
526         case PCM_REAR_CHANNEL:
527                 return (details->spi_dac & 0x0f00) >> (4 * 2);
528         case PCM_CENTER_LFE_CHANNEL:
529                 return (details->spi_dac & 0x00f0) >> (4 * 1);
530         case PCM_UNKNOWN_CHANNEL:
531                 return (details->spi_dac & 0x000f) >> (4 * 0);
532         default:
533                 dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
534                            channel_id);
535         }
536         return 0;
537 }
538 
539 static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
540                                     int power)
541 {
542         if (chip->details->spi_dac) {
543                 const int dac = snd_ca0106_channel_dac(chip, chip->details,
544                                                        channel_id);
545                 const int reg = spi_dacd_reg[dac];
546                 const int bit = spi_dacd_bit[dac];
547 
548                 if (power)
549                         /* Power up */
550                         chip->spi_dac_reg[reg] &= ~bit;
551                 else
552                         /* Power down */
553                         chip->spi_dac_reg[reg] |= bit;
554                 return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
555         }
556         return 0;
557 }
558 
559 /* open_playback callback */
560 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
561                                                 int channel_id)
562 {
563         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
564         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
565         struct snd_ca0106_pcm *epcm;
566         struct snd_pcm_runtime *runtime = substream->runtime;
567         int err;
568 
569         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
570 
571         if (epcm == NULL)
572                 return -ENOMEM;
573         epcm->emu = chip;
574         epcm->substream = substream;
575         epcm->channel_id=channel_id;
576   
577         runtime->private_data = epcm;
578         runtime->private_free = snd_ca0106_pcm_free_substream;
579   
580         runtime->hw = snd_ca0106_playback_hw;
581 
582         channel->emu = chip;
583         channel->number = channel_id;
584 
585         channel->use = 1;
586         /*
587         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
588                channel_id, chip, channel);
589         */
590         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
591         channel->epcm = epcm;
592         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
593                 return err;
594         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
595                 return err;
596         snd_pcm_set_sync(substream);
597 
598         /* Front channel dac should already be on */
599         if (channel_id != PCM_FRONT_CHANNEL) {
600                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
601                 if (err < 0)
602                         return err;
603         }
604 
605         restore_spdif_bits(chip, channel_id);
606 
607         return 0;
608 }
609 
610 /* close callback */
611 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
612 {
613         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
614         struct snd_pcm_runtime *runtime = substream->runtime;
615         struct snd_ca0106_pcm *epcm = runtime->private_data;
616         chip->playback_channels[epcm->channel_id].use = 0;
617 
618         restore_spdif_bits(chip, epcm->channel_id);
619 
620         /* Front channel dac should stay on */
621         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
622                 int err;
623                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
624                 if (err < 0)
625                         return err;
626         }
627 
628         /* FIXME: maybe zero others */
629         return 0;
630 }
631 
632 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
633 {
634         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
635 }
636 
637 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
638 {
639         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
640 }
641 
642 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
643 {
644         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
645 }
646 
647 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
648 {
649         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
650 }
651 
652 /* open_capture callback */
653 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
654                                                int channel_id)
655 {
656         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
657         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
658         struct snd_ca0106_pcm *epcm;
659         struct snd_pcm_runtime *runtime = substream->runtime;
660         int err;
661 
662         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
663         if (!epcm)
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         dev_dbg(chip->card->dev, "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         dev_dbg(emu->card->dev,
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         dev_dbg(emu->card->dev,
783                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
784                    runtime->dma_addr, runtime->dma_area, table_base);
785         dev_dbg(emu->card->dev,
786                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
787                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
788 #endif /* debug */
789         /* Rate can be set per channel. */
790         /* reg40 control host to fifo */
791         /* reg71 controls DAC rate. */
792         switch (runtime->rate) {
793         case 44100:
794                 reg40_set = 0x10000 << (channel<<1);
795                 reg71_set = 0x01010000; 
796                 break;
797         case 48000:
798                 reg40_set = 0;
799                 reg71_set = 0; 
800                 break;
801         case 96000:
802                 reg40_set = 0x20000 << (channel<<1);
803                 reg71_set = 0x02020000; 
804                 break;
805         case 192000:
806                 reg40_set = 0x30000 << (channel<<1);
807                 reg71_set = 0x03030000; 
808                 break;
809         default:
810                 reg40_set = 0;
811                 reg71_set = 0; 
812                 break;
813         }
814         /* Format is a global setting */
815         /* FIXME: Only let the first channel accessed set this. */
816         switch (runtime->format) {
817         case SNDRV_PCM_FORMAT_S16_LE:
818                 hcfg_set = 0;
819                 break;
820         case SNDRV_PCM_FORMAT_S32_LE:
821                 hcfg_set = HCFG_PLAYBACK_S32_LE;
822                 break;
823         default:
824                 hcfg_set = 0;
825                 break;
826         }
827         hcfg = inl(emu->port + HCFG) ;
828         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
829         outl(hcfg, emu->port + HCFG);
830         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
831         reg40 = (reg40 & ~reg40_mask) | reg40_set;
832         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
833         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
834         reg71 = (reg71 & ~reg71_mask) | reg71_set;
835         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
836 
837         /* FIXME: Check emu->buffer.size before actually writing to it. */
838         for(i=0; i < runtime->periods; i++) {
839                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
840                 table_base[i*2+1] = period_size_bytes << 16;
841         }
842  
843         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
844         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
845         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
846         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
847         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
848         /* FIXME  test what 0 bytes does. */
849         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
850         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
851         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
852         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
853         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
854 #if 0
855         snd_ca0106_ptr_write(emu, SPCS0, 0,
856                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
857                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
858                                SPCS_GENERATIONSTATUS | 0x00001200 |
859                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
860 #endif
861 
862         return 0;
863 }
864 
865 /* prepare capture callback */
866 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
867 {
868         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
869         struct snd_pcm_runtime *runtime = substream->runtime;
870         struct snd_ca0106_pcm *epcm = runtime->private_data;
871         int channel = epcm->channel_id;
872         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
873         u32 hcfg_set = 0x00000000;
874         u32 hcfg;
875         u32 over_sampling=0x2;
876         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
877         u32 reg71_set = 0;
878         u32 reg71;
879         
880 #if 0 /* debug */
881         dev_dbg(emu->card->dev,
882                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
883                    "channels=%d, buffer_size=%ld, period_size=%ld, "
884                    "periods=%u, frames_to_bytes=%d\n",
885                    channel, runtime->rate, runtime->format,
886                    runtime->channels, runtime->buffer_size,
887                    runtime->period_size, runtime->periods,
888                    frames_to_bytes(runtime, 1));
889         dev_dbg(emu->card->dev,
890                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
891                    runtime->dma_addr, runtime->dma_area, table_base);
892         dev_dbg(emu->card->dev,
893                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
894                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
895 #endif /* debug */
896         /* reg71 controls ADC rate. */
897         switch (runtime->rate) {
898         case 44100:
899                 reg71_set = 0x00004000;
900                 break;
901         case 48000:
902                 reg71_set = 0; 
903                 break;
904         case 96000:
905                 reg71_set = 0x00008000;
906                 over_sampling=0xa;
907                 break;
908         case 192000:
909                 reg71_set = 0x0000c000; 
910                 over_sampling=0xa;
911                 break;
912         default:
913                 reg71_set = 0; 
914                 break;
915         }
916         /* Format is a global setting */
917         /* FIXME: Only let the first channel accessed set this. */
918         switch (runtime->format) {
919         case SNDRV_PCM_FORMAT_S16_LE:
920                 hcfg_set = 0;
921                 break;
922         case SNDRV_PCM_FORMAT_S32_LE:
923                 hcfg_set = HCFG_CAPTURE_S32_LE;
924                 break;
925         default:
926                 hcfg_set = 0;
927                 break;
928         }
929         hcfg = inl(emu->port + HCFG) ;
930         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
931         outl(hcfg, emu->port + HCFG);
932         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
933         reg71 = (reg71 & ~reg71_mask) | reg71_set;
934         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
935         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
936                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
937         }
938 
939 
940         /*
941         dev_dbg(emu->card->dev,
942                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
943                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
944                channel, runtime->rate, runtime->format, runtime->channels,
945                runtime->buffer_size, runtime->period_size,
946                frames_to_bytes(runtime, 1));
947         */
948         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
949         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
950         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
951         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
952 
953         return 0;
954 }
955 
956 /* trigger_playback callback */
957 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
958                                     int cmd)
959 {
960         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
961         struct snd_pcm_runtime *runtime;
962         struct snd_ca0106_pcm *epcm;
963         int channel;
964         int result = 0;
965         struct snd_pcm_substream *s;
966         u32 basic = 0;
967         u32 extended = 0;
968         u32 bits;
969         int running = 0;
970 
971         switch (cmd) {
972         case SNDRV_PCM_TRIGGER_START:
973         case SNDRV_PCM_TRIGGER_RESUME:
974                 running = 1;
975                 break;
976         case SNDRV_PCM_TRIGGER_STOP:
977         case SNDRV_PCM_TRIGGER_SUSPEND:
978         default:
979                 running = 0;
980                 break;
981         }
982         snd_pcm_group_for_each_entry(s, substream) {
983                 if (snd_pcm_substream_chip(s) != emu ||
984                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
985                         continue;
986                 runtime = s->runtime;
987                 epcm = runtime->private_data;
988                 channel = epcm->channel_id;
989                 /* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
990                 epcm->running = running;
991                 basic |= (0x1 << channel);
992                 extended |= (0x10 << channel);
993                 snd_pcm_trigger_done(s, substream);
994         }
995         /* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
996 
997         switch (cmd) {
998         case SNDRV_PCM_TRIGGER_START:
999         case SNDRV_PCM_TRIGGER_RESUME:
1000                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1001                 bits |= extended;
1002                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1003                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1004                 bits |= basic;
1005                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1006                 break;
1007         case SNDRV_PCM_TRIGGER_STOP:
1008         case SNDRV_PCM_TRIGGER_SUSPEND:
1009                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1010                 bits &= ~basic;
1011                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1012                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1013                 bits &= ~extended;
1014                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1015                 break;
1016         default:
1017                 result = -EINVAL;
1018                 break;
1019         }
1020         return result;
1021 }
1022 
1023 /* trigger_capture callback */
1024 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
1025                                     int cmd)
1026 {
1027         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1028         struct snd_pcm_runtime *runtime = substream->runtime;
1029         struct snd_ca0106_pcm *epcm = runtime->private_data;
1030         int channel = epcm->channel_id;
1031         int result = 0;
1032 
1033         switch (cmd) {
1034         case SNDRV_PCM_TRIGGER_START:
1035                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1036                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1037                 epcm->running = 1;
1038                 break;
1039         case SNDRV_PCM_TRIGGER_STOP:
1040                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1041                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1042                 epcm->running = 0;
1043                 break;
1044         default:
1045                 result = -EINVAL;
1046                 break;
1047         }
1048         return result;
1049 }
1050 
1051 /* pointer_playback callback */
1052 static snd_pcm_uframes_t
1053 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1054 {
1055         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1056         struct snd_pcm_runtime *runtime = substream->runtime;
1057         struct snd_ca0106_pcm *epcm = runtime->private_data;
1058         unsigned int ptr, prev_ptr;
1059         int channel = epcm->channel_id;
1060         int timeout = 10;
1061 
1062         if (!epcm->running)
1063                 return 0;
1064 
1065         prev_ptr = -1;
1066         do {
1067                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1068                 ptr = (ptr >> 3) * runtime->period_size;
1069                 ptr += bytes_to_frames(runtime,
1070                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1071                 if (ptr >= runtime->buffer_size)
1072                         ptr -= runtime->buffer_size;
1073                 if (prev_ptr == ptr)
1074                         return ptr;
1075                 prev_ptr = ptr;
1076         } while (--timeout);
1077         dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1078         return 0;
1079 }
1080 
1081 /* pointer_capture callback */
1082 static snd_pcm_uframes_t
1083 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1084 {
1085         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1086         struct snd_pcm_runtime *runtime = substream->runtime;
1087         struct snd_ca0106_pcm *epcm = runtime->private_data;
1088         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1089         int channel = epcm->channel_id;
1090 
1091         if (!epcm->running)
1092                 return 0;
1093 
1094         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1095         ptr2 = bytes_to_frames(runtime, ptr1);
1096         ptr=ptr2;
1097         if (ptr >= runtime->buffer_size)
1098                 ptr -= runtime->buffer_size;
1099         /*
1100         dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1101                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1102                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1103                (int)runtime->period_size, (int)runtime->frame_bits,
1104                (int)runtime->rate);
1105         */
1106         return ptr;
1107 }
1108 
1109 /* operators */
1110 static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1111         .open =        snd_ca0106_pcm_open_playback_front,
1112         .close =       snd_ca0106_pcm_close_playback,
1113         .ioctl =       snd_pcm_lib_ioctl,
1114         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1115         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1116         .prepare =     snd_ca0106_pcm_prepare_playback,
1117         .trigger =     snd_ca0106_pcm_trigger_playback,
1118         .pointer =     snd_ca0106_pcm_pointer_playback,
1119 };
1120 
1121 static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1122         .open =        snd_ca0106_pcm_open_0_capture,
1123         .close =       snd_ca0106_pcm_close_capture,
1124         .ioctl =       snd_pcm_lib_ioctl,
1125         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1126         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1127         .prepare =     snd_ca0106_pcm_prepare_capture,
1128         .trigger =     snd_ca0106_pcm_trigger_capture,
1129         .pointer =     snd_ca0106_pcm_pointer_capture,
1130 };
1131 
1132 static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1133         .open =        snd_ca0106_pcm_open_1_capture,
1134         .close =       snd_ca0106_pcm_close_capture,
1135         .ioctl =       snd_pcm_lib_ioctl,
1136         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1137         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1138         .prepare =     snd_ca0106_pcm_prepare_capture,
1139         .trigger =     snd_ca0106_pcm_trigger_capture,
1140         .pointer =     snd_ca0106_pcm_pointer_capture,
1141 };
1142 
1143 static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1144         .open =        snd_ca0106_pcm_open_2_capture,
1145         .close =       snd_ca0106_pcm_close_capture,
1146         .ioctl =       snd_pcm_lib_ioctl,
1147         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1148         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1149         .prepare =     snd_ca0106_pcm_prepare_capture,
1150         .trigger =     snd_ca0106_pcm_trigger_capture,
1151         .pointer =     snd_ca0106_pcm_pointer_capture,
1152 };
1153 
1154 static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1155         .open =        snd_ca0106_pcm_open_3_capture,
1156         .close =       snd_ca0106_pcm_close_capture,
1157         .ioctl =       snd_pcm_lib_ioctl,
1158         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1159         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1160         .prepare =     snd_ca0106_pcm_prepare_capture,
1161         .trigger =     snd_ca0106_pcm_trigger_capture,
1162         .pointer =     snd_ca0106_pcm_pointer_capture,
1163 };
1164 
1165 static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1166         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1167         .close =        snd_ca0106_pcm_close_playback,
1168         .ioctl =        snd_pcm_lib_ioctl,
1169         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1170         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1171         .prepare =      snd_ca0106_pcm_prepare_playback,     
1172         .trigger =      snd_ca0106_pcm_trigger_playback,  
1173         .pointer =      snd_ca0106_pcm_pointer_playback, 
1174 };
1175 
1176 static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1177         .open =         snd_ca0106_pcm_open_playback_unknown,
1178         .close =        snd_ca0106_pcm_close_playback,
1179         .ioctl =        snd_pcm_lib_ioctl,
1180         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1181         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1182         .prepare =      snd_ca0106_pcm_prepare_playback,     
1183         .trigger =      snd_ca0106_pcm_trigger_playback,  
1184         .pointer =      snd_ca0106_pcm_pointer_playback, 
1185 };
1186 
1187 static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1188         .open =         snd_ca0106_pcm_open_playback_rear,
1189         .close =        snd_ca0106_pcm_close_playback,
1190         .ioctl =        snd_pcm_lib_ioctl,
1191         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1192                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1193         .prepare =      snd_ca0106_pcm_prepare_playback,     
1194         .trigger =      snd_ca0106_pcm_trigger_playback,  
1195         .pointer =      snd_ca0106_pcm_pointer_playback, 
1196 };
1197 
1198 
1199 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1200                                              unsigned short reg)
1201 {
1202         struct snd_ca0106 *emu = ac97->private_data;
1203         unsigned long flags;
1204         unsigned short val;
1205 
1206         spin_lock_irqsave(&emu->emu_lock, flags);
1207         outb(reg, emu->port + AC97ADDRESS);
1208         val = inw(emu->port + AC97DATA);
1209         spin_unlock_irqrestore(&emu->emu_lock, flags);
1210         return val;
1211 }
1212 
1213 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1214                                     unsigned short reg, unsigned short val)
1215 {
1216         struct snd_ca0106 *emu = ac97->private_data;
1217         unsigned long flags;
1218   
1219         spin_lock_irqsave(&emu->emu_lock, flags);
1220         outb(reg, emu->port + AC97ADDRESS);
1221         outw(val, emu->port + AC97DATA);
1222         spin_unlock_irqrestore(&emu->emu_lock, flags);
1223 }
1224 
1225 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1226 {
1227         struct snd_ac97_bus *pbus;
1228         struct snd_ac97_template ac97;
1229         int err;
1230         static struct snd_ac97_bus_ops ops = {
1231                 .write = snd_ca0106_ac97_write,
1232                 .read = snd_ca0106_ac97_read,
1233         };
1234   
1235         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1236                 return err;
1237         pbus->no_vra = 1; /* we don't need VRA */
1238 
1239         memset(&ac97, 0, sizeof(ac97));
1240         ac97.private_data = chip;
1241         ac97.scaps = AC97_SCAP_NO_SPDIF;
1242         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1243 }
1244 
1245 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1246 
1247 static int snd_ca0106_free(struct snd_ca0106 *chip)
1248 {
1249         if (chip->res_port != NULL) {
1250                 /* avoid access to already used hardware */
1251                 ca0106_stop_chip(chip);
1252         }
1253         if (chip->irq >= 0)
1254                 free_irq(chip->irq, chip);
1255         // release the data
1256 #if 1
1257         if (chip->buffer.area)
1258                 snd_dma_free_pages(&chip->buffer);
1259 #endif
1260 
1261         // release the i/o port
1262         release_and_free_resource(chip->res_port);
1263 
1264         pci_disable_device(chip->pci);
1265         kfree(chip);
1266         return 0;
1267 }
1268 
1269 static int snd_ca0106_dev_free(struct snd_device *device)
1270 {
1271         struct snd_ca0106 *chip = device->device_data;
1272         return snd_ca0106_free(chip);
1273 }
1274 
1275 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1276 {
1277         unsigned int status;
1278 
1279         struct snd_ca0106 *chip = dev_id;
1280         int i;
1281         int mask;
1282         unsigned int stat76;
1283         struct snd_ca0106_channel *pchannel;
1284 
1285         status = inl(chip->port + IPR);
1286         if (! status)
1287                 return IRQ_NONE;
1288 
1289         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1290         /*
1291         dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1292                    status, stat76);
1293         dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1294                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1295         */
1296         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1297         for(i = 0; i < 4; i++) {
1298                 pchannel = &(chip->playback_channels[i]);
1299                 if (stat76 & mask) {
1300 /* FIXME: Select the correct substream for period elapsed */
1301                         if(pchannel->use) {
1302                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1303                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1304                         }
1305                 }
1306                 /*
1307                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1308                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1309                 */
1310                 mask <<= 1;
1311         }
1312         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1313         for(i = 0; i < 4; i++) {
1314                 pchannel = &(chip->capture_channels[i]);
1315                 if (stat76 & mask) {
1316 /* FIXME: Select the correct substream for period elapsed */
1317                         if(pchannel->use) {
1318                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1319                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1320                         }
1321                 }
1322                 /*
1323                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1324                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1325                 */
1326                 mask <<= 1;
1327         }
1328 
1329         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1330 
1331         if (chip->midi.dev_id &&
1332             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1333                 if (chip->midi.interrupt)
1334                         chip->midi.interrupt(&chip->midi, status);
1335                 else
1336                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1337         }
1338 
1339         // acknowledge the interrupt if necessary
1340         outl(status, chip->port+IPR);
1341 
1342         return IRQ_HANDLED;
1343 }
1344 
1345 static const struct snd_pcm_chmap_elem surround_map[] = {
1346         { .channels = 2,
1347           .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1348         { }
1349 };
1350 
1351 static const struct snd_pcm_chmap_elem clfe_map[] = {
1352         { .channels = 2,
1353           .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1354         { }
1355 };
1356 
1357 static const struct snd_pcm_chmap_elem side_map[] = {
1358         { .channels = 2,
1359           .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1360         { }
1361 };
1362 
1363 static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1364 {
1365         struct snd_pcm *pcm;
1366         struct snd_pcm_substream *substream;
1367         const struct snd_pcm_chmap_elem *map = NULL;
1368         int err;
1369   
1370         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1371         if (err < 0)
1372                 return err;
1373   
1374         pcm->private_data = emu;
1375 
1376         switch (device) {
1377         case 0:
1378           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1379           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1380           map = snd_pcm_std_chmaps;
1381           break;
1382         case 1:
1383           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1384           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1385           map = surround_map;
1386           break;
1387         case 2:
1388           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1389           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1390           map = clfe_map;
1391           break;
1392         case 3:
1393           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1394           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1395           map = side_map;
1396           break;
1397         }
1398 
1399         pcm->info_flags = 0;
1400         strcpy(pcm->name, "CA0106");
1401 
1402         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1403             substream; 
1404             substream = substream->next) {
1405                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1406                                                          SNDRV_DMA_TYPE_DEV, 
1407                                                          snd_dma_pci_data(emu->pci), 
1408                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1409                         return err;
1410         }
1411 
1412         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1413               substream; 
1414               substream = substream->next) {
1415                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1416                                                    SNDRV_DMA_TYPE_DEV, 
1417                                                    snd_dma_pci_data(emu->pci), 
1418                                                    64*1024, 64*1024)) < 0)
1419                         return err;
1420         }
1421   
1422         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1423                                      1 << 2, NULL);
1424         if (err < 0)
1425                 return err;
1426 
1427         emu->pcm[device] = pcm;
1428   
1429         return 0;
1430 }
1431 
1432 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1433 static unsigned int spi_dac_init[] = {
1434         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1435         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1436         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1437         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1438         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1439         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1440         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1441         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1442         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1443         SPI_REG(9,              0x00),
1444         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1445         SPI_REG(12,             0x00),
1446         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1447         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1448         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1449 };
1450 
1451 static unsigned int i2c_adc_init[][2] = {
1452         { 0x17, 0x00 }, /* Reset */
1453         { 0x07, 0x00 }, /* Timeout */
1454         { 0x0b, 0x22 },  /* Interface control */
1455         { 0x0c, 0x22 },  /* Master mode control */
1456         { 0x0d, 0x08 },  /* Powerdown control */
1457         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1458         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1459         { 0x10, 0x7b },  /* ALC Control 1 */
1460         { 0x11, 0x00 },  /* ALC Control 2 */
1461         { 0x12, 0x32 },  /* ALC Control 3 */
1462         { 0x13, 0x00 },  /* Noise gate control */
1463         { 0x14, 0xa6 },  /* Limiter control */
1464         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1465 };
1466 
1467 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1468 {
1469         int ch;
1470         unsigned int def_bits;
1471 
1472         outl(0, chip->port + INTE);
1473 
1474         /*
1475          *  Init to 0x02109204 :
1476          *  Clock accuracy    = 0     (1000ppm)
1477          *  Sample Rate       = 2     (48kHz)
1478          *  Audio Channel     = 1     (Left of 2)
1479          *  Source Number     = 0     (Unspecified)
1480          *  Generation Status = 1     (Original for Cat Code 12)
1481          *  Cat Code          = 12    (Digital Signal Mixer)
1482          *  Mode              = 0     (Mode 0)
1483          *  Emphasis          = 0     (None)
1484          *  CP                = 1     (Copyright unasserted)
1485          *  AN                = 0     (Audio data)
1486          *  P                 = 0     (Consumer)
1487          */
1488         def_bits =
1489                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1490                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1491                 SPCS_GENERATIONSTATUS | 0x00001200 |
1492                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1493         if (!resume) {
1494                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1495                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1496                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1497                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1498         }
1499         /* Only SPCS1 has been tested */
1500         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1501         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1502         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1503         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1504 
1505         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1506         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1507 
1508         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1509         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1510         outw(0x8000, chip->port + AC97DATA);
1511 #if 0 /* FIXME: what are these? */
1512         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1513         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1514         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1515         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1516 #endif
1517 
1518         /* OSS drivers set this. */
1519         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1520 
1521         /* Analog or Digital output */
1522         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1523         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1524          * Use 0x000f0000 for surround71
1525          */
1526         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1527 
1528         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1529         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1530         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1531 
1532         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1533         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1534         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1535          * Only lower 16 bits matter.
1536          */
1537         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1538         /* SPDIF IN Volume */
1539         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1540         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1541         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1542 
1543         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1544         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1545         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1546         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1547 
1548         for (ch = 0; ch < 4; ch++) {
1549                 /* Only high 16 bits matter */
1550                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1551                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1552 #if 0 /* Mute */
1553                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1554                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1555                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1556                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1557 #endif
1558         }
1559         if (chip->details->i2c_adc == 1) {
1560                 /* Select MIC, Line in, TAD in, AUX in */
1561                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1562                 /* Default to CAPTURE_SOURCE to i2s in */
1563                 if (!resume)
1564                         chip->capture_source = 3;
1565         } else if (chip->details->ac97 == 1) {
1566                 /* Default to AC97 in */
1567                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1568                 /* Default to CAPTURE_SOURCE to AC97 in */
1569                 if (!resume)
1570                         chip->capture_source = 4;
1571         } else {
1572                 /* Select MIC, Line in, TAD in, AUX in */
1573                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1574                 /* Default to Set CAPTURE_SOURCE to i2s in */
1575                 if (!resume)
1576                         chip->capture_source = 3;
1577         }
1578 
1579         if (chip->details->gpio_type == 2) {
1580                 /* The SB0438 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 if (chip->details->gpio_type == 1) {
1588                 /* The SB0410 and SB0413 use GPIO differently. */
1589                 /* FIXME: Still need to find out what the other GPIO bits do.
1590                  * E.g. For digital spdif out.
1591                  */
1592                 outl(0x0, chip->port+GPIO);
1593                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1594                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1595         } else {
1596                 outl(0x0, chip->port+GPIO);
1597                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1598                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1599         }
1600         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1601 
1602         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1603         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1604         /* outl(0x00001409, chip->port+HCFG); */
1605         /* outl(0x00000009, chip->port+HCFG); */
1606         /* AC97 2.0, Enable outputs. */
1607         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1608 
1609         if (chip->details->i2c_adc == 1) {
1610                 /* The SB0410 and SB0413 use I2C to control ADC. */
1611                 int size, n;
1612 
1613                 size = ARRAY_SIZE(i2c_adc_init);
1614                 /* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1615                 for (n = 0; n < size; n++)
1616                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1617                                              i2c_adc_init[n][1]);
1618                 for (n = 0; n < 4; n++) {
1619                         chip->i2c_capture_volume[n][0] = 0xcf;
1620                         chip->i2c_capture_volume[n][1] = 0xcf;
1621                 }
1622                 chip->i2c_capture_source = 2; /* Line in */
1623                 /* Enable Line-in capture. MIC in currently untested. */
1624                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1625         }
1626 
1627         if (chip->details->spi_dac) {
1628                 /* The SB0570 use SPI to control DAC. */
1629                 int size, n;
1630 
1631                 size = ARRAY_SIZE(spi_dac_init);
1632                 for (n = 0; n < size; n++) {
1633                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1634 
1635                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1636                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1637                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1638                 }
1639 
1640                 /* Enable front dac only */
1641                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1642         }
1643 }
1644 
1645 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1646 {
1647         /* disable interrupts */
1648         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1649         outl(0, chip->port + INTE);
1650         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1651         udelay(1000);
1652         /* disable audio */
1653         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1654         outl(0, chip->port + HCFG);
1655         /* FIXME: We need to stop and DMA transfers here.
1656          *        But as I am not sure how yet, we cannot from the dma pages.
1657          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1658          */
1659 }
1660 
1661 static int snd_ca0106_create(int dev, struct snd_card *card,
1662                                          struct pci_dev *pci,
1663                                          struct snd_ca0106 **rchip)
1664 {
1665         struct snd_ca0106 *chip;
1666         struct snd_ca0106_details *c;
1667         int err;
1668         static struct snd_device_ops ops = {
1669                 .dev_free = snd_ca0106_dev_free,
1670         };
1671 
1672         *rchip = NULL;
1673 
1674         err = pci_enable_device(pci);
1675         if (err < 0)
1676                 return err;
1677         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
1678             dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1679                 dev_err(card->dev, "error to set 32bit mask DMA\n");
1680                 pci_disable_device(pci);
1681                 return -ENXIO;
1682         }
1683 
1684         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1685         if (chip == NULL) {
1686                 pci_disable_device(pci);
1687                 return -ENOMEM;
1688         }
1689 
1690         chip->card = card;
1691         chip->pci = pci;
1692         chip->irq = -1;
1693 
1694         spin_lock_init(&chip->emu_lock);
1695 
1696         chip->port = pci_resource_start(pci, 0);
1697         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1698         if (!chip->res_port) {
1699                 snd_ca0106_free(chip);
1700                 dev_err(card->dev, "cannot allocate the port\n");
1701                 return -EBUSY;
1702         }
1703 
1704         if (request_irq(pci->irq, snd_ca0106_interrupt,
1705                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1706                 snd_ca0106_free(chip);
1707                 dev_err(card->dev, "cannot grab irq\n");
1708                 return -EBUSY;
1709         }
1710         chip->irq = pci->irq;
1711 
1712         /* This stores the periods table. */
1713         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1714                                 1024, &chip->buffer) < 0) {
1715                 snd_ca0106_free(chip);
1716                 return -ENOMEM;
1717         }
1718 
1719         pci_set_master(pci);
1720         /* read serial */
1721         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1722         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1723         dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1724                chip->model, pci->revision, chip->serial);
1725         strcpy(card->driver, "CA0106");
1726         strcpy(card->shortname, "CA0106");
1727 
1728         for (c = ca0106_chip_details; c->serial; c++) {
1729                 if (subsystem[dev]) {
1730                         if (c->serial == subsystem[dev])
1731                                 break;
1732                 } else if (c->serial == chip->serial)
1733                         break;
1734         }
1735         chip->details = c;
1736         if (subsystem[dev]) {
1737                 dev_info(card->dev, "Sound card name=%s, "
1738                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1739                        c->name, chip->serial, subsystem[dev]);
1740         }
1741 
1742         sprintf(card->longname, "%s at 0x%lx irq %i",
1743                 c->name, chip->port, chip->irq);
1744 
1745         ca0106_init_chip(chip, 0);
1746 
1747         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1748         if (err < 0) {
1749                 snd_ca0106_free(chip);
1750                 return err;
1751         }
1752         *rchip = chip;
1753         return 0;
1754 }
1755 
1756 
1757 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1758 {
1759         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1760 }
1761 
1762 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1763 {
1764         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1765 }
1766 
1767 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1768 {
1769         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1770                                                   midi->port + idx, 0);
1771 }
1772 
1773 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1774 {
1775         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1776 }
1777 
1778 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1779 {
1780         return ((struct snd_ca0106 *)dev_id)->card;
1781 }
1782 
1783 static int ca0106_dev_id_port(void *dev_id)
1784 {
1785         return ((struct snd_ca0106 *)dev_id)->port;
1786 }
1787 
1788 static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1789 {
1790         struct snd_ca_midi *midi;
1791         char *name;
1792         int err;
1793 
1794         if (channel == CA0106_MIDI_CHAN_B) {
1795                 name = "CA0106 MPU-401 (UART) B";
1796                 midi =  &chip->midi2;
1797                 midi->tx_enable = INTE_MIDI_TX_B;
1798                 midi->rx_enable = INTE_MIDI_RX_B;
1799                 midi->ipr_tx = IPR_MIDI_TX_B;
1800                 midi->ipr_rx = IPR_MIDI_RX_B;
1801                 midi->port = MIDI_UART_B_DATA;
1802         } else {
1803                 name = "CA0106 MPU-401 (UART)";
1804                 midi =  &chip->midi;
1805                 midi->tx_enable = INTE_MIDI_TX_A;
1806                 midi->rx_enable = INTE_MIDI_TX_B;
1807                 midi->ipr_tx = IPR_MIDI_TX_A;
1808                 midi->ipr_rx = IPR_MIDI_RX_A;
1809                 midi->port = MIDI_UART_A_DATA;
1810         }
1811 
1812         midi->reset = CA0106_MPU401_RESET;
1813         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1814         midi->ack = CA0106_MPU401_ACK;
1815 
1816         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1817         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1818 
1819         midi->channel = channel;
1820 
1821         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1822         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1823 
1824         midi->read = ca0106_midi_read;
1825         midi->write = ca0106_midi_write;
1826 
1827         midi->get_dev_id_card = ca0106_dev_id_card;
1828         midi->get_dev_id_port = ca0106_dev_id_port;
1829 
1830         midi->dev_id = chip;
1831         
1832         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1833                 return err;
1834 
1835         return 0;
1836 }
1837 
1838 
1839 static int snd_ca0106_probe(struct pci_dev *pci,
1840                                         const struct pci_device_id *pci_id)
1841 {
1842         static int dev;
1843         struct snd_card *card;
1844         struct snd_ca0106 *chip;
1845         int i, err;
1846 
1847         if (dev >= SNDRV_CARDS)
1848                 return -ENODEV;
1849         if (!enable[dev]) {
1850                 dev++;
1851                 return -ENOENT;
1852         }
1853 
1854         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1855                            0, &card);
1856         if (err < 0)
1857                 return err;
1858 
1859         err = snd_ca0106_create(dev, card, pci, &chip);
1860         if (err < 0)
1861                 goto error;
1862         card->private_data = chip;
1863 
1864         for (i = 0; i < 4; i++) {
1865                 err = snd_ca0106_pcm(chip, i);
1866                 if (err < 0)
1867                         goto error;
1868         }
1869 
1870         if (chip->details->ac97 == 1) {
1871                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1872                 err = snd_ca0106_ac97(chip);
1873                 if (err < 0)
1874                         goto error;
1875         }
1876         err = snd_ca0106_mixer(chip);
1877         if (err < 0)
1878                 goto error;
1879 
1880         dev_dbg(card->dev, "probe for MIDI channel A ...");
1881         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1882         if (err < 0)
1883                 goto error;
1884         dev_dbg(card->dev, " done.\n");
1885 
1886 #ifdef CONFIG_SND_PROC_FS
1887         snd_ca0106_proc_init(chip);
1888 #endif
1889 
1890         err = snd_card_register(card);
1891         if (err < 0)
1892                 goto error;
1893 
1894         pci_set_drvdata(pci, card);
1895         dev++;
1896         return 0;
1897 
1898  error:
1899         snd_card_free(card);
1900         return err;
1901 }
1902 
1903 static void snd_ca0106_remove(struct pci_dev *pci)
1904 {
1905         snd_card_free(pci_get_drvdata(pci));
1906 }
1907 
1908 #ifdef CONFIG_PM_SLEEP
1909 static int snd_ca0106_suspend(struct device *dev)
1910 {
1911         struct snd_card *card = dev_get_drvdata(dev);
1912         struct snd_ca0106 *chip = card->private_data;
1913         int i;
1914 
1915         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1916         for (i = 0; i < 4; i++)
1917                 snd_pcm_suspend_all(chip->pcm[i]);
1918         if (chip->details->ac97)
1919                 snd_ac97_suspend(chip->ac97);
1920         snd_ca0106_mixer_suspend(chip);
1921 
1922         ca0106_stop_chip(chip);
1923         return 0;
1924 }
1925 
1926 static int snd_ca0106_resume(struct device *dev)
1927 {
1928         struct snd_card *card = dev_get_drvdata(dev);
1929         struct snd_ca0106 *chip = card->private_data;
1930         int i;
1931 
1932         ca0106_init_chip(chip, 1);
1933 
1934         if (chip->details->ac97)
1935                 snd_ac97_resume(chip->ac97);
1936         snd_ca0106_mixer_resume(chip);
1937         if (chip->details->spi_dac) {
1938                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1939                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1940         }
1941 
1942         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1943         return 0;
1944 }
1945 
1946 static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1947 #define SND_CA0106_PM_OPS       &snd_ca0106_pm
1948 #else
1949 #define SND_CA0106_PM_OPS       NULL
1950 #endif
1951 
1952 // PCI IDs
1953 static const struct pci_device_id snd_ca0106_ids[] = {
1954         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1955         { 0, }
1956 };
1957 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1958 
1959 // pci_driver definition
1960 static struct pci_driver ca0106_driver = {
1961         .name = KBUILD_MODNAME,
1962         .id_table = snd_ca0106_ids,
1963         .probe = snd_ca0106_probe,
1964         .remove = snd_ca0106_remove,
1965         .driver = {
1966                 .pm = SND_CA0106_PM_OPS,
1967         },
1968 };
1969 
1970 module_pci_driver(ca0106_driver);
1971 

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