GNU Linux-libre 4.19.295-gnu1
[releases.git] / sound / pci / ca0106 / ca0106_main.c
1 /*
2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
4  *  Version: 0.0.25
5  *
6  *  FEATURES currently supported:
7  *    Front, Rear and Center/LFE.
8  *    Surround40 and Surround51.
9  *    Capture from MIC an LINE IN input.
10  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
11  *    (One can use a standard mono mini-jack to one RCA plugs cable.
12  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
13  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
14  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
15  *    Notes on how to capture sound:
16  *      The AC97 is used in the PLAYBACK direction.
17  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
18  *      So, to record from the MIC, set the MIC Playback volume to max,
19  *      unmute the MIC and turn up the MASTER Playback volume.
20  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
21  *   
22  *    The only playback controls that currently do anything are: -
23  *    Analog Front
24  *    Analog Rear
25  *    Analog Center/LFE
26  *    SPDIF Front
27  *    SPDIF Rear
28  *    SPDIF Center/LFE
29  *   
30  *    For capture from Mic in or Line in.
31  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
32  * 
33  *    CAPTURE feedback into PLAYBACK
34  * 
35  *  Changelog:
36  *    Support interrupts per period.
37  *    Removed noise from Center/LFE channel when in Analog mode.
38  *    Rename and remove mixer controls.
39  *  0.0.6
40  *    Use separate card based DMA buffer for periods table list.
41  *  0.0.7
42  *    Change remove and rename ctrls into lists.
43  *  0.0.8
44  *    Try to fix capture sources.
45  *  0.0.9
46  *    Fix AC3 output.
47  *    Enable S32_LE format support.
48  *  0.0.10
49  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
50  *  0.0.11
51  *    Add Model name recognition.
52  *  0.0.12
53  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
54  *    Remove redundent "voice" handling.
55  *  0.0.13
56  *    Single trigger call for multi channels.
57  *  0.0.14
58  *    Set limits based on what the sound card hardware can do.
59  *    playback periods_min=2, periods_max=8
60  *    capture hw constraints require period_size = n * 64 bytes.
61  *    playback hw constraints require period_size = n * 64 bytes.
62  *  0.0.15
63  *    Minor updates.
64  *  0.0.16
65  *    Implement 192000 sample rate.
66  *  0.0.17
67  *    Add support for SB0410 and SB0413.
68  *  0.0.18
69  *    Modified Copyright message.
70  *  0.0.19
71  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
72  *    The output codec needs resetting, otherwise all output is muted.
73  *  0.0.20
74  *    Merge "pci_disable_device(pci);" fixes.
75  *  0.0.21
76  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
77  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
78  *  0.0.22
79  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
80  *  0.0.23
81  *    Implement support for Line-in capture on SB Live 24bit.
82  *  0.0.24
83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
84  *  0.0.25
85  *    Powerdown SPI DAC channels when not in use
86  *
87  *  BUGS:
88  *    Some stability problems when unloading the snd-ca0106 kernel module.
89  *    --
90  *
91  *  TODO:
92  *    4 Capture channels, only one implemented so far.
93  *    Other capture rates apart from 48khz not implemented.
94  *    MIDI
95  *    --
96  *  GENERAL INFO:
97  *    Model: SB0310
98  *    P17 Chip: CA0106-DAT
99  *    AC97 Codec: STAC 9721
100  *    ADC: Philips 1361T (Stereo 24bit)
101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
102  *
103  *  GENERAL INFO:
104  *    Model: SB0410
105  *    P17 Chip: CA0106-DAT
106  *    AC97 Codec: None
107  *    ADC: WM8775EDS (4 Channel)
108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
109  *    SPDIF Out control switches between Mic in and SPDIF out.
110  *    No sound out or mic input working yet.
111  * 
112  *  GENERAL INFO:
113  *    Model: SB0413
114  *    P17 Chip: CA0106-DAT
115  *    AC97 Codec: None.
116  *    ADC: Unknown
117  *    DAC: Unknown
118  *    Trying to handle it like the SB0410.
119  *
120  *  This code was 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                 if (snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]) != 0)
555                         return -ENXIO;
556         }
557         return 0;
558 }
559
560 /* open_playback callback */
561 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
562                                                 int channel_id)
563 {
564         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
565         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
566         struct snd_ca0106_pcm *epcm;
567         struct snd_pcm_runtime *runtime = substream->runtime;
568         int err;
569
570         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
571
572         if (epcm == NULL)
573                 return -ENOMEM;
574         epcm->emu = chip;
575         epcm->substream = substream;
576         epcm->channel_id=channel_id;
577   
578         runtime->private_data = epcm;
579         runtime->private_free = snd_ca0106_pcm_free_substream;
580   
581         runtime->hw = snd_ca0106_playback_hw;
582
583         channel->emu = chip;
584         channel->number = channel_id;
585
586         channel->use = 1;
587         /*
588         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
589                channel_id, chip, channel);
590         */
591         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
592         channel->epcm = epcm;
593         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
594                 return err;
595         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
596                 return err;
597         snd_pcm_set_sync(substream);
598
599         /* Front channel dac should already be on */
600         if (channel_id != PCM_FRONT_CHANNEL) {
601                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
602                 if (err < 0)
603                         return err;
604         }
605
606         restore_spdif_bits(chip, channel_id);
607
608         return 0;
609 }
610
611 /* close callback */
612 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
613 {
614         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
615         struct snd_pcm_runtime *runtime = substream->runtime;
616         struct snd_ca0106_pcm *epcm = runtime->private_data;
617         chip->playback_channels[epcm->channel_id].use = 0;
618
619         restore_spdif_bits(chip, epcm->channel_id);
620
621         /* Front channel dac should stay on */
622         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
623                 int err;
624                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
625                 if (err < 0)
626                         return err;
627         }
628
629         /* FIXME: maybe zero others */
630         return 0;
631 }
632
633 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
634 {
635         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
636 }
637
638 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
639 {
640         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
641 }
642
643 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
644 {
645         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
646 }
647
648 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
649 {
650         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
651 }
652
653 /* open_capture callback */
654 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
655                                                int channel_id)
656 {
657         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
658         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
659         struct snd_ca0106_pcm *epcm;
660         struct snd_pcm_runtime *runtime = substream->runtime;
661         int err;
662
663         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
664         if (!epcm)
665                 return -ENOMEM;
666
667         epcm->emu = chip;
668         epcm->substream = substream;
669         epcm->channel_id=channel_id;
670   
671         runtime->private_data = epcm;
672         runtime->private_free = snd_ca0106_pcm_free_substream;
673   
674         runtime->hw = snd_ca0106_capture_hw;
675
676         channel->emu = chip;
677         channel->number = channel_id;
678
679         channel->use = 1;
680         /*
681         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
682                channel_id, chip, channel);
683         */
684         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
685         channel->epcm = epcm;
686         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
687                 return err;
688         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
689         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
690                 return err;
691         return 0;
692 }
693
694 /* close callback */
695 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
696 {
697         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
698         struct snd_pcm_runtime *runtime = substream->runtime;
699         struct snd_ca0106_pcm *epcm = runtime->private_data;
700         chip->capture_channels[epcm->channel_id].use = 0;
701         /* FIXME: maybe zero others */
702         return 0;
703 }
704
705 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
706 {
707         return snd_ca0106_pcm_open_capture_channel(substream, 0);
708 }
709
710 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
711 {
712         return snd_ca0106_pcm_open_capture_channel(substream, 1);
713 }
714
715 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
716 {
717         return snd_ca0106_pcm_open_capture_channel(substream, 2);
718 }
719
720 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
721 {
722         return snd_ca0106_pcm_open_capture_channel(substream, 3);
723 }
724
725 /* hw_params callback */
726 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
727                                       struct snd_pcm_hw_params *hw_params)
728 {
729         return snd_pcm_lib_malloc_pages(substream,
730                                         params_buffer_bytes(hw_params));
731 }
732
733 /* hw_free callback */
734 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
735 {
736         return snd_pcm_lib_free_pages(substream);
737 }
738
739 /* hw_params callback */
740 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
741                                       struct snd_pcm_hw_params *hw_params)
742 {
743         return snd_pcm_lib_malloc_pages(substream,
744                                         params_buffer_bytes(hw_params));
745 }
746
747 /* hw_free callback */
748 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
749 {
750         return snd_pcm_lib_free_pages(substream);
751 }
752
753 /* prepare playback callback */
754 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
755 {
756         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
757         struct snd_pcm_runtime *runtime = substream->runtime;
758         struct snd_ca0106_pcm *epcm = runtime->private_data;
759         int channel = epcm->channel_id;
760         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
761         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
762         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
763         u32 hcfg_set = 0x00000000;
764         u32 hcfg;
765         u32 reg40_mask = 0x30000 << (channel<<1);
766         u32 reg40_set = 0;
767         u32 reg40;
768         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
769         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
770         u32 reg71_set = 0;
771         u32 reg71;
772         int i;
773         
774 #if 0 /* debug */
775         dev_dbg(emu->card->dev,
776                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
777                    "channels=%d, buffer_size=%ld, period_size=%ld, "
778                    "periods=%u, frames_to_bytes=%d\n",
779                    channel, runtime->rate, runtime->format,
780                    runtime->channels, runtime->buffer_size,
781                    runtime->period_size, runtime->periods,
782                    frames_to_bytes(runtime, 1));
783         dev_dbg(emu->card->dev,
784                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
785                    runtime->dma_addr, runtime->dma_area, table_base);
786         dev_dbg(emu->card->dev,
787                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
788                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
789 #endif /* debug */
790         /* Rate can be set per channel. */
791         /* reg40 control host to fifo */
792         /* reg71 controls DAC rate. */
793         switch (runtime->rate) {
794         case 44100:
795                 reg40_set = 0x10000 << (channel<<1);
796                 reg71_set = 0x01010000; 
797                 break;
798         case 48000:
799                 reg40_set = 0;
800                 reg71_set = 0; 
801                 break;
802         case 96000:
803                 reg40_set = 0x20000 << (channel<<1);
804                 reg71_set = 0x02020000; 
805                 break;
806         case 192000:
807                 reg40_set = 0x30000 << (channel<<1);
808                 reg71_set = 0x03030000; 
809                 break;
810         default:
811                 reg40_set = 0;
812                 reg71_set = 0; 
813                 break;
814         }
815         /* Format is a global setting */
816         /* FIXME: Only let the first channel accessed set this. */
817         switch (runtime->format) {
818         case SNDRV_PCM_FORMAT_S16_LE:
819                 hcfg_set = 0;
820                 break;
821         case SNDRV_PCM_FORMAT_S32_LE:
822                 hcfg_set = HCFG_PLAYBACK_S32_LE;
823                 break;
824         default:
825                 hcfg_set = 0;
826                 break;
827         }
828         hcfg = inl(emu->port + HCFG) ;
829         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
830         outl(hcfg, emu->port + HCFG);
831         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
832         reg40 = (reg40 & ~reg40_mask) | reg40_set;
833         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
834         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
835         reg71 = (reg71 & ~reg71_mask) | reg71_set;
836         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
837
838         /* FIXME: Check emu->buffer.size before actually writing to it. */
839         for(i=0; i < runtime->periods; i++) {
840                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
841                 table_base[i*2+1] = period_size_bytes << 16;
842         }
843  
844         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
845         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
846         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
847         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
848         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
849         /* FIXME  test what 0 bytes does. */
850         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
851         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
852         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
853         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
854         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
855 #if 0
856         snd_ca0106_ptr_write(emu, SPCS0, 0,
857                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
858                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
859                                SPCS_GENERATIONSTATUS | 0x00001200 |
860                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
861 #endif
862
863         return 0;
864 }
865
866 /* prepare capture callback */
867 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
868 {
869         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
870         struct snd_pcm_runtime *runtime = substream->runtime;
871         struct snd_ca0106_pcm *epcm = runtime->private_data;
872         int channel = epcm->channel_id;
873         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
874         u32 hcfg_set = 0x00000000;
875         u32 hcfg;
876         u32 over_sampling=0x2;
877         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
878         u32 reg71_set = 0;
879         u32 reg71;
880         
881 #if 0 /* debug */
882         dev_dbg(emu->card->dev,
883                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
884                    "channels=%d, buffer_size=%ld, period_size=%ld, "
885                    "periods=%u, frames_to_bytes=%d\n",
886                    channel, runtime->rate, runtime->format,
887                    runtime->channels, runtime->buffer_size,
888                    runtime->period_size, runtime->periods,
889                    frames_to_bytes(runtime, 1));
890         dev_dbg(emu->card->dev,
891                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
892                    runtime->dma_addr, runtime->dma_area, table_base);
893         dev_dbg(emu->card->dev,
894                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
895                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
896 #endif /* debug */
897         /* reg71 controls ADC rate. */
898         switch (runtime->rate) {
899         case 44100:
900                 reg71_set = 0x00004000;
901                 break;
902         case 48000:
903                 reg71_set = 0; 
904                 break;
905         case 96000:
906                 reg71_set = 0x00008000;
907                 over_sampling=0xa;
908                 break;
909         case 192000:
910                 reg71_set = 0x0000c000; 
911                 over_sampling=0xa;
912                 break;
913         default:
914                 reg71_set = 0; 
915                 break;
916         }
917         /* Format is a global setting */
918         /* FIXME: Only let the first channel accessed set this. */
919         switch (runtime->format) {
920         case SNDRV_PCM_FORMAT_S16_LE:
921                 hcfg_set = 0;
922                 break;
923         case SNDRV_PCM_FORMAT_S32_LE:
924                 hcfg_set = HCFG_CAPTURE_S32_LE;
925                 break;
926         default:
927                 hcfg_set = 0;
928                 break;
929         }
930         hcfg = inl(emu->port + HCFG) ;
931         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
932         outl(hcfg, emu->port + HCFG);
933         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
934         reg71 = (reg71 & ~reg71_mask) | reg71_set;
935         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
936         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
937                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
938         }
939
940
941         /*
942         dev_dbg(emu->card->dev,
943                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
944                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
945                channel, runtime->rate, runtime->format, runtime->channels,
946                runtime->buffer_size, runtime->period_size,
947                frames_to_bytes(runtime, 1));
948         */
949         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
950         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
951         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
952         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
953
954         return 0;
955 }
956
957 /* trigger_playback callback */
958 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
959                                     int cmd)
960 {
961         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
962         struct snd_pcm_runtime *runtime;
963         struct snd_ca0106_pcm *epcm;
964         int channel;
965         int result = 0;
966         struct snd_pcm_substream *s;
967         u32 basic = 0;
968         u32 extended = 0;
969         u32 bits;
970         int running = 0;
971
972         switch (cmd) {
973         case SNDRV_PCM_TRIGGER_START:
974         case SNDRV_PCM_TRIGGER_RESUME:
975                 running = 1;
976                 break;
977         case SNDRV_PCM_TRIGGER_STOP:
978         case SNDRV_PCM_TRIGGER_SUSPEND:
979         default:
980                 running = 0;
981                 break;
982         }
983         snd_pcm_group_for_each_entry(s, substream) {
984                 if (snd_pcm_substream_chip(s) != emu ||
985                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
986                         continue;
987                 runtime = s->runtime;
988                 epcm = runtime->private_data;
989                 channel = epcm->channel_id;
990                 /* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
991                 epcm->running = running;
992                 basic |= (0x1 << channel);
993                 extended |= (0x10 << channel);
994                 snd_pcm_trigger_done(s, substream);
995         }
996         /* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
997
998         switch (cmd) {
999         case SNDRV_PCM_TRIGGER_START:
1000         case SNDRV_PCM_TRIGGER_RESUME:
1001                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1002                 bits |= extended;
1003                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1004                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1005                 bits |= basic;
1006                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1007                 break;
1008         case SNDRV_PCM_TRIGGER_STOP:
1009         case SNDRV_PCM_TRIGGER_SUSPEND:
1010                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1011                 bits &= ~basic;
1012                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1013                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1014                 bits &= ~extended;
1015                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1016                 break;
1017         default:
1018                 result = -EINVAL;
1019                 break;
1020         }
1021         return result;
1022 }
1023
1024 /* trigger_capture callback */
1025 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
1026                                     int cmd)
1027 {
1028         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1029         struct snd_pcm_runtime *runtime = substream->runtime;
1030         struct snd_ca0106_pcm *epcm = runtime->private_data;
1031         int channel = epcm->channel_id;
1032         int result = 0;
1033
1034         switch (cmd) {
1035         case SNDRV_PCM_TRIGGER_START:
1036                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1037                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1038                 epcm->running = 1;
1039                 break;
1040         case SNDRV_PCM_TRIGGER_STOP:
1041                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1042                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1043                 epcm->running = 0;
1044                 break;
1045         default:
1046                 result = -EINVAL;
1047                 break;
1048         }
1049         return result;
1050 }
1051
1052 /* pointer_playback callback */
1053 static snd_pcm_uframes_t
1054 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1055 {
1056         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1057         struct snd_pcm_runtime *runtime = substream->runtime;
1058         struct snd_ca0106_pcm *epcm = runtime->private_data;
1059         unsigned int ptr, prev_ptr;
1060         int channel = epcm->channel_id;
1061         int timeout = 10;
1062
1063         if (!epcm->running)
1064                 return 0;
1065
1066         prev_ptr = -1;
1067         do {
1068                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1069                 ptr = (ptr >> 3) * runtime->period_size;
1070                 ptr += bytes_to_frames(runtime,
1071                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1072                 if (ptr >= runtime->buffer_size)
1073                         ptr -= runtime->buffer_size;
1074                 if (prev_ptr == ptr)
1075                         return ptr;
1076                 prev_ptr = ptr;
1077         } while (--timeout);
1078         dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1079         return 0;
1080 }
1081
1082 /* pointer_capture callback */
1083 static snd_pcm_uframes_t
1084 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1085 {
1086         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1087         struct snd_pcm_runtime *runtime = substream->runtime;
1088         struct snd_ca0106_pcm *epcm = runtime->private_data;
1089         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1090         int channel = epcm->channel_id;
1091
1092         if (!epcm->running)
1093                 return 0;
1094
1095         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1096         ptr2 = bytes_to_frames(runtime, ptr1);
1097         ptr=ptr2;
1098         if (ptr >= runtime->buffer_size)
1099                 ptr -= runtime->buffer_size;
1100         /*
1101         dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1102                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1103                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1104                (int)runtime->period_size, (int)runtime->frame_bits,
1105                (int)runtime->rate);
1106         */
1107         return ptr;
1108 }
1109
1110 /* operators */
1111 static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1112         .open =        snd_ca0106_pcm_open_playback_front,
1113         .close =       snd_ca0106_pcm_close_playback,
1114         .ioctl =       snd_pcm_lib_ioctl,
1115         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1116         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1117         .prepare =     snd_ca0106_pcm_prepare_playback,
1118         .trigger =     snd_ca0106_pcm_trigger_playback,
1119         .pointer =     snd_ca0106_pcm_pointer_playback,
1120 };
1121
1122 static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1123         .open =        snd_ca0106_pcm_open_0_capture,
1124         .close =       snd_ca0106_pcm_close_capture,
1125         .ioctl =       snd_pcm_lib_ioctl,
1126         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1127         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1128         .prepare =     snd_ca0106_pcm_prepare_capture,
1129         .trigger =     snd_ca0106_pcm_trigger_capture,
1130         .pointer =     snd_ca0106_pcm_pointer_capture,
1131 };
1132
1133 static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1134         .open =        snd_ca0106_pcm_open_1_capture,
1135         .close =       snd_ca0106_pcm_close_capture,
1136         .ioctl =       snd_pcm_lib_ioctl,
1137         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1138         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1139         .prepare =     snd_ca0106_pcm_prepare_capture,
1140         .trigger =     snd_ca0106_pcm_trigger_capture,
1141         .pointer =     snd_ca0106_pcm_pointer_capture,
1142 };
1143
1144 static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1145         .open =        snd_ca0106_pcm_open_2_capture,
1146         .close =       snd_ca0106_pcm_close_capture,
1147         .ioctl =       snd_pcm_lib_ioctl,
1148         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1149         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1150         .prepare =     snd_ca0106_pcm_prepare_capture,
1151         .trigger =     snd_ca0106_pcm_trigger_capture,
1152         .pointer =     snd_ca0106_pcm_pointer_capture,
1153 };
1154
1155 static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1156         .open =        snd_ca0106_pcm_open_3_capture,
1157         .close =       snd_ca0106_pcm_close_capture,
1158         .ioctl =       snd_pcm_lib_ioctl,
1159         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1160         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1161         .prepare =     snd_ca0106_pcm_prepare_capture,
1162         .trigger =     snd_ca0106_pcm_trigger_capture,
1163         .pointer =     snd_ca0106_pcm_pointer_capture,
1164 };
1165
1166 static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1167         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1168         .close =        snd_ca0106_pcm_close_playback,
1169         .ioctl =        snd_pcm_lib_ioctl,
1170         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1171         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1172         .prepare =      snd_ca0106_pcm_prepare_playback,     
1173         .trigger =      snd_ca0106_pcm_trigger_playback,  
1174         .pointer =      snd_ca0106_pcm_pointer_playback, 
1175 };
1176
1177 static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1178         .open =         snd_ca0106_pcm_open_playback_unknown,
1179         .close =        snd_ca0106_pcm_close_playback,
1180         .ioctl =        snd_pcm_lib_ioctl,
1181         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1182         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1183         .prepare =      snd_ca0106_pcm_prepare_playback,     
1184         .trigger =      snd_ca0106_pcm_trigger_playback,  
1185         .pointer =      snd_ca0106_pcm_pointer_playback, 
1186 };
1187
1188 static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1189         .open =         snd_ca0106_pcm_open_playback_rear,
1190         .close =        snd_ca0106_pcm_close_playback,
1191         .ioctl =        snd_pcm_lib_ioctl,
1192         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1193                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1194         .prepare =      snd_ca0106_pcm_prepare_playback,     
1195         .trigger =      snd_ca0106_pcm_trigger_playback,  
1196         .pointer =      snd_ca0106_pcm_pointer_playback, 
1197 };
1198
1199
1200 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1201                                              unsigned short reg)
1202 {
1203         struct snd_ca0106 *emu = ac97->private_data;
1204         unsigned long flags;
1205         unsigned short val;
1206
1207         spin_lock_irqsave(&emu->emu_lock, flags);
1208         outb(reg, emu->port + AC97ADDRESS);
1209         val = inw(emu->port + AC97DATA);
1210         spin_unlock_irqrestore(&emu->emu_lock, flags);
1211         return val;
1212 }
1213
1214 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1215                                     unsigned short reg, unsigned short val)
1216 {
1217         struct snd_ca0106 *emu = ac97->private_data;
1218         unsigned long flags;
1219   
1220         spin_lock_irqsave(&emu->emu_lock, flags);
1221         outb(reg, emu->port + AC97ADDRESS);
1222         outw(val, emu->port + AC97DATA);
1223         spin_unlock_irqrestore(&emu->emu_lock, flags);
1224 }
1225
1226 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1227 {
1228         struct snd_ac97_bus *pbus;
1229         struct snd_ac97_template ac97;
1230         int err;
1231         static struct snd_ac97_bus_ops ops = {
1232                 .write = snd_ca0106_ac97_write,
1233                 .read = snd_ca0106_ac97_read,
1234         };
1235   
1236         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1237                 return err;
1238         pbus->no_vra = 1; /* we don't need VRA */
1239
1240         memset(&ac97, 0, sizeof(ac97));
1241         ac97.private_data = chip;
1242         ac97.scaps = AC97_SCAP_NO_SPDIF;
1243         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1244 }
1245
1246 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1247
1248 static int snd_ca0106_free(struct snd_ca0106 *chip)
1249 {
1250         if (chip->res_port != NULL) {
1251                 /* avoid access to already used hardware */
1252                 ca0106_stop_chip(chip);
1253         }
1254         if (chip->irq >= 0)
1255                 free_irq(chip->irq, chip);
1256         // release the data
1257 #if 1
1258         if (chip->buffer.area)
1259                 snd_dma_free_pages(&chip->buffer);
1260 #endif
1261
1262         // release the i/o port
1263         release_and_free_resource(chip->res_port);
1264
1265         pci_disable_device(chip->pci);
1266         kfree(chip);
1267         return 0;
1268 }
1269
1270 static int snd_ca0106_dev_free(struct snd_device *device)
1271 {
1272         struct snd_ca0106 *chip = device->device_data;
1273         return snd_ca0106_free(chip);
1274 }
1275
1276 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1277 {
1278         unsigned int status;
1279
1280         struct snd_ca0106 *chip = dev_id;
1281         int i;
1282         int mask;
1283         unsigned int stat76;
1284         struct snd_ca0106_channel *pchannel;
1285
1286         status = inl(chip->port + IPR);
1287         if (! status)
1288                 return IRQ_NONE;
1289
1290         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1291         /*
1292         dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1293                    status, stat76);
1294         dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1295                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1296         */
1297         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1298         for(i = 0; i < 4; i++) {
1299                 pchannel = &(chip->playback_channels[i]);
1300                 if (stat76 & mask) {
1301 /* FIXME: Select the correct substream for period elapsed */
1302                         if(pchannel->use) {
1303                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1304                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1305                         }
1306                 }
1307                 /*
1308                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1309                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1310                 */
1311                 mask <<= 1;
1312         }
1313         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1314         for(i = 0; i < 4; i++) {
1315                 pchannel = &(chip->capture_channels[i]);
1316                 if (stat76 & mask) {
1317 /* FIXME: Select the correct substream for period elapsed */
1318                         if(pchannel->use) {
1319                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1320                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1321                         }
1322                 }
1323                 /*
1324                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1325                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1326                 */
1327                 mask <<= 1;
1328         }
1329
1330         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1331
1332         if (chip->midi.dev_id &&
1333             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1334                 if (chip->midi.interrupt)
1335                         chip->midi.interrupt(&chip->midi, status);
1336                 else
1337                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1338         }
1339
1340         // acknowledge the interrupt if necessary
1341         outl(status, chip->port+IPR);
1342
1343         return IRQ_HANDLED;
1344 }
1345
1346 static const struct snd_pcm_chmap_elem surround_map[] = {
1347         { .channels = 2,
1348           .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1349         { }
1350 };
1351
1352 static const struct snd_pcm_chmap_elem clfe_map[] = {
1353         { .channels = 2,
1354           .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1355         { }
1356 };
1357
1358 static const struct snd_pcm_chmap_elem side_map[] = {
1359         { .channels = 2,
1360           .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1361         { }
1362 };
1363
1364 static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1365 {
1366         struct snd_pcm *pcm;
1367         struct snd_pcm_substream *substream;
1368         const struct snd_pcm_chmap_elem *map = NULL;
1369         int err;
1370   
1371         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1372         if (err < 0)
1373                 return err;
1374   
1375         pcm->private_data = emu;
1376
1377         switch (device) {
1378         case 0:
1379           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1380           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1381           map = snd_pcm_std_chmaps;
1382           break;
1383         case 1:
1384           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1385           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1386           map = surround_map;
1387           break;
1388         case 2:
1389           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1390           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1391           map = clfe_map;
1392           break;
1393         case 3:
1394           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1395           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1396           map = side_map;
1397           break;
1398         }
1399
1400         pcm->info_flags = 0;
1401         strcpy(pcm->name, "CA0106");
1402
1403         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1404             substream; 
1405             substream = substream->next) {
1406                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1407                                                          SNDRV_DMA_TYPE_DEV, 
1408                                                          snd_dma_pci_data(emu->pci), 
1409                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1410                         return err;
1411         }
1412
1413         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1414               substream; 
1415               substream = substream->next) {
1416                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
1417                                                    SNDRV_DMA_TYPE_DEV, 
1418                                                    snd_dma_pci_data(emu->pci), 
1419                                                    64*1024, 64*1024)) < 0)
1420                         return err;
1421         }
1422   
1423         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1424                                      1 << 2, NULL);
1425         if (err < 0)
1426                 return err;
1427
1428         emu->pcm[device] = pcm;
1429   
1430         return 0;
1431 }
1432
1433 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1434 static unsigned int spi_dac_init[] = {
1435         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1436         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1437         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1438         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1439         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1440         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1441         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1442         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1443         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1444         SPI_REG(9,              0x00),
1445         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1446         SPI_REG(12,             0x00),
1447         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1448         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1449         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1450 };
1451
1452 static unsigned int i2c_adc_init[][2] = {
1453         { 0x17, 0x00 }, /* Reset */
1454         { 0x07, 0x00 }, /* Timeout */
1455         { 0x0b, 0x22 },  /* Interface control */
1456         { 0x0c, 0x22 },  /* Master mode control */
1457         { 0x0d, 0x08 },  /* Powerdown control */
1458         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1459         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1460         { 0x10, 0x7b },  /* ALC Control 1 */
1461         { 0x11, 0x00 },  /* ALC Control 2 */
1462         { 0x12, 0x32 },  /* ALC Control 3 */
1463         { 0x13, 0x00 },  /* Noise gate control */
1464         { 0x14, 0xa6 },  /* Limiter control */
1465         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1466 };
1467
1468 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1469 {
1470         int ch;
1471         unsigned int def_bits;
1472
1473         outl(0, chip->port + INTE);
1474
1475         /*
1476          *  Init to 0x02109204 :
1477          *  Clock accuracy    = 0     (1000ppm)
1478          *  Sample Rate       = 2     (48kHz)
1479          *  Audio Channel     = 1     (Left of 2)
1480          *  Source Number     = 0     (Unspecified)
1481          *  Generation Status = 1     (Original for Cat Code 12)
1482          *  Cat Code          = 12    (Digital Signal Mixer)
1483          *  Mode              = 0     (Mode 0)
1484          *  Emphasis          = 0     (None)
1485          *  CP                = 1     (Copyright unasserted)
1486          *  AN                = 0     (Audio data)
1487          *  P                 = 0     (Consumer)
1488          */
1489         def_bits =
1490                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1491                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1492                 SPCS_GENERATIONSTATUS | 0x00001200 |
1493                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1494         if (!resume) {
1495                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1496                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1497                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1498                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1499         }
1500         /* Only SPCS1 has been tested */
1501         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1502         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1503         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1504         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1505
1506         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1507         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1508
1509         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1510         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1511         outw(0x8000, chip->port + AC97DATA);
1512 #if 0 /* FIXME: what are these? */
1513         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1514         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1515         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1516         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1517 #endif
1518
1519         /* OSS drivers set this. */
1520         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1521
1522         /* Analog or Digital output */
1523         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1524         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1525          * Use 0x000f0000 for surround71
1526          */
1527         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1528
1529         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1530         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1531         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1532
1533         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1534         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1535         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1536          * Only lower 16 bits matter.
1537          */
1538         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1539         /* SPDIF IN Volume */
1540         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1541         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1542         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1543
1544         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1545         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1546         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1547         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1548
1549         for (ch = 0; ch < 4; ch++) {
1550                 /* Only high 16 bits matter */
1551                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1552                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1553 #if 0 /* Mute */
1554                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1555                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1556                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1557                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1558 #endif
1559         }
1560         if (chip->details->i2c_adc == 1) {
1561                 /* Select MIC, Line in, TAD in, AUX in */
1562                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1563                 /* Default to CAPTURE_SOURCE to i2s in */
1564                 if (!resume)
1565                         chip->capture_source = 3;
1566         } else if (chip->details->ac97 == 1) {
1567                 /* Default to AC97 in */
1568                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1569                 /* Default to CAPTURE_SOURCE to AC97 in */
1570                 if (!resume)
1571                         chip->capture_source = 4;
1572         } else {
1573                 /* Select MIC, Line in, TAD in, AUX in */
1574                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1575                 /* Default to Set CAPTURE_SOURCE to i2s in */
1576                 if (!resume)
1577                         chip->capture_source = 3;
1578         }
1579
1580         if (chip->details->gpio_type == 2) {
1581                 /* The SB0438 use GPIO differently. */
1582                 /* FIXME: Still need to find out what the other GPIO bits do.
1583                  * E.g. For digital spdif out.
1584                  */
1585                 outl(0x0, chip->port+GPIO);
1586                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1587                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1588         } else if (chip->details->gpio_type == 1) {
1589                 /* The SB0410 and SB0413 use GPIO differently. */
1590                 /* FIXME: Still need to find out what the other GPIO bits do.
1591                  * E.g. For digital spdif out.
1592                  */
1593                 outl(0x0, chip->port+GPIO);
1594                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1595                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1596         } else {
1597                 outl(0x0, chip->port+GPIO);
1598                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1599                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1600         }
1601         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1602
1603         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1604         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1605         /* outl(0x00001409, chip->port+HCFG); */
1606         /* outl(0x00000009, chip->port+HCFG); */
1607         /* AC97 2.0, Enable outputs. */
1608         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1609
1610         if (chip->details->i2c_adc == 1) {
1611                 /* The SB0410 and SB0413 use I2C to control ADC. */
1612                 int size, n;
1613
1614                 size = ARRAY_SIZE(i2c_adc_init);
1615                 /* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1616                 for (n = 0; n < size; n++)
1617                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1618                                              i2c_adc_init[n][1]);
1619                 for (n = 0; n < 4; n++) {
1620                         chip->i2c_capture_volume[n][0] = 0xcf;
1621                         chip->i2c_capture_volume[n][1] = 0xcf;
1622                 }
1623                 chip->i2c_capture_source = 2; /* Line in */
1624                 /* Enable Line-in capture. MIC in currently untested. */
1625                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1626         }
1627
1628         if (chip->details->spi_dac) {
1629                 /* The SB0570 use SPI to control DAC. */
1630                 int size, n;
1631
1632                 size = ARRAY_SIZE(spi_dac_init);
1633                 for (n = 0; n < size; n++) {
1634                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1635
1636                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1637                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1638                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1639                 }
1640
1641                 /* Enable front dac only */
1642                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1643         }
1644 }
1645
1646 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1647 {
1648         /* disable interrupts */
1649         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1650         outl(0, chip->port + INTE);
1651         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1652         udelay(1000);
1653         /* disable audio */
1654         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1655         outl(0, chip->port + HCFG);
1656         /* FIXME: We need to stop and DMA transfers here.
1657          *        But as I am not sure how yet, we cannot from the dma pages.
1658          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1659          */
1660 }
1661
1662 static int snd_ca0106_create(int dev, struct snd_card *card,
1663                                          struct pci_dev *pci,
1664                                          struct snd_ca0106 **rchip)
1665 {
1666         struct snd_ca0106 *chip;
1667         struct snd_ca0106_details *c;
1668         int err;
1669         static struct snd_device_ops ops = {
1670                 .dev_free = snd_ca0106_dev_free,
1671         };
1672
1673         *rchip = NULL;
1674
1675         err = pci_enable_device(pci);
1676         if (err < 0)
1677                 return err;
1678         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
1679             dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1680                 dev_err(card->dev, "error to set 32bit mask DMA\n");
1681                 pci_disable_device(pci);
1682                 return -ENXIO;
1683         }
1684
1685         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1686         if (chip == NULL) {
1687                 pci_disable_device(pci);
1688                 return -ENOMEM;
1689         }
1690
1691         chip->card = card;
1692         chip->pci = pci;
1693         chip->irq = -1;
1694
1695         spin_lock_init(&chip->emu_lock);
1696
1697         chip->port = pci_resource_start(pci, 0);
1698         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1699         if (!chip->res_port) {
1700                 snd_ca0106_free(chip);
1701                 dev_err(card->dev, "cannot allocate the port\n");
1702                 return -EBUSY;
1703         }
1704
1705         if (request_irq(pci->irq, snd_ca0106_interrupt,
1706                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1707                 snd_ca0106_free(chip);
1708                 dev_err(card->dev, "cannot grab irq\n");
1709                 return -EBUSY;
1710         }
1711         chip->irq = pci->irq;
1712
1713         /* This stores the periods table. */
1714         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1715                                 1024, &chip->buffer) < 0) {
1716                 snd_ca0106_free(chip);
1717                 return -ENOMEM;
1718         }
1719
1720         pci_set_master(pci);
1721         /* read serial */
1722         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1723         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1724         dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1725                chip->model, pci->revision, chip->serial);
1726         strcpy(card->driver, "CA0106");
1727         strcpy(card->shortname, "CA0106");
1728
1729         for (c = ca0106_chip_details; c->serial; c++) {
1730                 if (subsystem[dev]) {
1731                         if (c->serial == subsystem[dev])
1732                                 break;
1733                 } else if (c->serial == chip->serial)
1734                         break;
1735         }
1736         chip->details = c;
1737         if (subsystem[dev]) {
1738                 dev_info(card->dev, "Sound card name=%s, "
1739                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1740                        c->name, chip->serial, subsystem[dev]);
1741         }
1742
1743         sprintf(card->longname, "%s at 0x%lx irq %i",
1744                 c->name, chip->port, chip->irq);
1745
1746         ca0106_init_chip(chip, 0);
1747
1748         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1749         if (err < 0) {
1750                 snd_ca0106_free(chip);
1751                 return err;
1752         }
1753         *rchip = chip;
1754         return 0;
1755 }
1756
1757
1758 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1759 {
1760         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1761 }
1762
1763 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1764 {
1765         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1766 }
1767
1768 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1769 {
1770         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1771                                                   midi->port + idx, 0);
1772 }
1773
1774 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1775 {
1776         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1777 }
1778
1779 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1780 {
1781         return ((struct snd_ca0106 *)dev_id)->card;
1782 }
1783
1784 static int ca0106_dev_id_port(void *dev_id)
1785 {
1786         return ((struct snd_ca0106 *)dev_id)->port;
1787 }
1788
1789 static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1790 {
1791         struct snd_ca_midi *midi;
1792         char *name;
1793         int err;
1794
1795         if (channel == CA0106_MIDI_CHAN_B) {
1796                 name = "CA0106 MPU-401 (UART) B";
1797                 midi =  &chip->midi2;
1798                 midi->tx_enable = INTE_MIDI_TX_B;
1799                 midi->rx_enable = INTE_MIDI_RX_B;
1800                 midi->ipr_tx = IPR_MIDI_TX_B;
1801                 midi->ipr_rx = IPR_MIDI_RX_B;
1802                 midi->port = MIDI_UART_B_DATA;
1803         } else {
1804                 name = "CA0106 MPU-401 (UART)";
1805                 midi =  &chip->midi;
1806                 midi->tx_enable = INTE_MIDI_TX_A;
1807                 midi->rx_enable = INTE_MIDI_TX_B;
1808                 midi->ipr_tx = IPR_MIDI_TX_A;
1809                 midi->ipr_rx = IPR_MIDI_RX_A;
1810                 midi->port = MIDI_UART_A_DATA;
1811         }
1812
1813         midi->reset = CA0106_MPU401_RESET;
1814         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1815         midi->ack = CA0106_MPU401_ACK;
1816
1817         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1818         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1819
1820         midi->channel = channel;
1821
1822         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1823         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1824
1825         midi->read = ca0106_midi_read;
1826         midi->write = ca0106_midi_write;
1827
1828         midi->get_dev_id_card = ca0106_dev_id_card;
1829         midi->get_dev_id_port = ca0106_dev_id_port;
1830
1831         midi->dev_id = chip;
1832         
1833         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1834                 return err;
1835
1836         return 0;
1837 }
1838
1839
1840 static int snd_ca0106_probe(struct pci_dev *pci,
1841                                         const struct pci_device_id *pci_id)
1842 {
1843         static int dev;
1844         struct snd_card *card;
1845         struct snd_ca0106 *chip;
1846         int i, err;
1847
1848         if (dev >= SNDRV_CARDS)
1849                 return -ENODEV;
1850         if (!enable[dev]) {
1851                 dev++;
1852                 return -ENOENT;
1853         }
1854
1855         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1856                            0, &card);
1857         if (err < 0)
1858                 return err;
1859
1860         err = snd_ca0106_create(dev, card, pci, &chip);
1861         if (err < 0)
1862                 goto error;
1863         card->private_data = chip;
1864
1865         for (i = 0; i < 4; i++) {
1866                 err = snd_ca0106_pcm(chip, i);
1867                 if (err < 0)
1868                         goto error;
1869         }
1870
1871         if (chip->details->ac97 == 1) {
1872                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1873                 err = snd_ca0106_ac97(chip);
1874                 if (err < 0)
1875                         goto error;
1876         }
1877         err = snd_ca0106_mixer(chip);
1878         if (err < 0)
1879                 goto error;
1880
1881         dev_dbg(card->dev, "probe for MIDI channel A ...");
1882         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1883         if (err < 0)
1884                 goto error;
1885         dev_dbg(card->dev, " done.\n");
1886
1887 #ifdef CONFIG_SND_PROC_FS
1888         snd_ca0106_proc_init(chip);
1889 #endif
1890
1891         err = snd_card_register(card);
1892         if (err < 0)
1893                 goto error;
1894
1895         pci_set_drvdata(pci, card);
1896         dev++;
1897         return 0;
1898
1899  error:
1900         snd_card_free(card);
1901         return err;
1902 }
1903
1904 static void snd_ca0106_remove(struct pci_dev *pci)
1905 {
1906         snd_card_free(pci_get_drvdata(pci));
1907 }
1908
1909 #ifdef CONFIG_PM_SLEEP
1910 static int snd_ca0106_suspend(struct device *dev)
1911 {
1912         struct snd_card *card = dev_get_drvdata(dev);
1913         struct snd_ca0106 *chip = card->private_data;
1914         int i;
1915
1916         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1917         for (i = 0; i < 4; i++)
1918                 snd_pcm_suspend_all(chip->pcm[i]);
1919         if (chip->details->ac97)
1920                 snd_ac97_suspend(chip->ac97);
1921         snd_ca0106_mixer_suspend(chip);
1922
1923         ca0106_stop_chip(chip);
1924         return 0;
1925 }
1926
1927 static int snd_ca0106_resume(struct device *dev)
1928 {
1929         struct snd_card *card = dev_get_drvdata(dev);
1930         struct snd_ca0106 *chip = card->private_data;
1931         int i;
1932
1933         ca0106_init_chip(chip, 1);
1934
1935         if (chip->details->ac97)
1936                 snd_ac97_resume(chip->ac97);
1937         snd_ca0106_mixer_resume(chip);
1938         if (chip->details->spi_dac) {
1939                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1940                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1941         }
1942
1943         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1944         return 0;
1945 }
1946
1947 static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1948 #define SND_CA0106_PM_OPS       &snd_ca0106_pm
1949 #else
1950 #define SND_CA0106_PM_OPS       NULL
1951 #endif
1952
1953 // PCI IDs
1954 static const struct pci_device_id snd_ca0106_ids[] = {
1955         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1956         { 0, }
1957 };
1958 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1959
1960 // pci_driver definition
1961 static struct pci_driver ca0106_driver = {
1962         .name = KBUILD_MODNAME,
1963         .id_table = snd_ca0106_ids,
1964         .probe = snd_ca0106_probe,
1965         .remove = snd_ca0106_remove,
1966         .driver = {
1967                 .pm = SND_CA0106_PM_OPS,
1968         },
1969 };
1970
1971 module_pci_driver(ca0106_driver);