ALSA: cs46xx: More constifications
[muen/linux.git] / sound / pci / ca0106 / ca0106_main.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
4  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
5  *  Version: 0.0.25
6  *
7  *  FEATURES currently supported:
8  *    Front, Rear and Center/LFE.
9  *    Surround40 and Surround51.
10  *    Capture from MIC an LINE IN input.
11  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
12  *    (One can use a standard mono mini-jack to one RCA plugs cable.
13  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
14  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
15  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
16  *    Notes on how to capture sound:
17  *      The AC97 is used in the PLAYBACK direction.
18  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
19  *      So, to record from the MIC, set the MIC Playback volume to max,
20  *      unmute the MIC and turn up the MASTER Playback volume.
21  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
22  *   
23  *    The only playback controls that currently do anything are: -
24  *    Analog Front
25  *    Analog Rear
26  *    Analog Center/LFE
27  *    SPDIF Front
28  *    SPDIF Rear
29  *    SPDIF Center/LFE
30  *   
31  *    For capture from Mic in or Line in.
32  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
33  * 
34  *    CAPTURE feedback into PLAYBACK
35  * 
36  *  Changelog:
37  *    Support interrupts per period.
38  *    Removed noise from Center/LFE channel when in Analog mode.
39  *    Rename and remove mixer controls.
40  *  0.0.6
41  *    Use separate card based DMA buffer for periods table list.
42  *  0.0.7
43  *    Change remove and rename ctrls into lists.
44  *  0.0.8
45  *    Try to fix capture sources.
46  *  0.0.9
47  *    Fix AC3 output.
48  *    Enable S32_LE format support.
49  *  0.0.10
50  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
51  *  0.0.11
52  *    Add Model name recognition.
53  *  0.0.12
54  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
55  *    Remove redundent "voice" handling.
56  *  0.0.13
57  *    Single trigger call for multi channels.
58  *  0.0.14
59  *    Set limits based on what the sound card hardware can do.
60  *    playback periods_min=2, periods_max=8
61  *    capture hw constraints require period_size = n * 64 bytes.
62  *    playback hw constraints require period_size = n * 64 bytes.
63  *  0.0.15
64  *    Minor updates.
65  *  0.0.16
66  *    Implement 192000 sample rate.
67  *  0.0.17
68  *    Add support for SB0410 and SB0413.
69  *  0.0.18
70  *    Modified Copyright message.
71  *  0.0.19
72  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
73  *    The output codec needs resetting, otherwise all output is muted.
74  *  0.0.20
75  *    Merge "pci_disable_device(pci);" fixes.
76  *  0.0.21
77  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
78  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
79  *  0.0.22
80  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
81  *  0.0.23
82  *    Implement support for Line-in capture on SB Live 24bit.
83  *  0.0.24
84  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
85  *  0.0.25
86  *    Powerdown SPI DAC channels when not in use
87  *
88  *  BUGS:
89  *    Some stability problems when unloading the snd-ca0106 kernel module.
90  *    --
91  *
92  *  TODO:
93  *    4 Capture channels, only one implemented so far.
94  *    Other capture rates apart from 48khz not implemented.
95  *    MIDI
96  *    --
97  *  GENERAL INFO:
98  *    Model: SB0310
99  *    P17 Chip: CA0106-DAT
100  *    AC97 Codec: STAC 9721
101  *    ADC: Philips 1361T (Stereo 24bit)
102  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
103  *
104  *  GENERAL INFO:
105  *    Model: SB0410
106  *    P17 Chip: CA0106-DAT
107  *    AC97 Codec: None
108  *    ADC: WM8775EDS (4 Channel)
109  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
110  *    SPDIF Out control switches between Mic in and SPDIF out.
111  *    No sound out or mic input working yet.
112  * 
113  *  GENERAL INFO:
114  *    Model: SB0413
115  *    P17 Chip: CA0106-DAT
116  *    AC97 Codec: None.
117  *    ADC: Unknown
118  *    DAC: Unknown
119  *    Trying to handle it like the SB0410.
120  *
121  *  This code was initially based on code from ALSA's emu10k1x.c which is:
122  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
123  */
124 #include <linux/delay.h>
125 #include <linux/init.h>
126 #include <linux/interrupt.h>
127 #include <linux/pci.h>
128 #include <linux/slab.h>
129 #include <linux/module.h>
130 #include <linux/dma-mapping.h>
131 #include <sound/core.h>
132 #include <sound/initval.h>
133 #include <sound/pcm.h>
134 #include <sound/ac97_codec.h>
135 #include <sound/info.h>
136
137 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
138 MODULE_DESCRIPTION("CA0106");
139 MODULE_LICENSE("GPL");
140 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
141
142 // module parameters (see "Module Parameters")
143 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
144 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
145 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
146 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
147
148 module_param_array(index, int, NULL, 0444);
149 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
150 module_param_array(id, charp, NULL, 0444);
151 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
152 module_param_array(enable, bool, NULL, 0444);
153 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
154 module_param_array(subsystem, uint, NULL, 0444);
155 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
156
157 #include "ca0106.h"
158
159 static const struct snd_ca0106_details ca0106_chip_details[] = {
160          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
161          /* It is really just a normal SB Live 24bit. */
162          /* Tested:
163           * See ALSA bug#3251
164           */
165          { .serial = 0x10131102,
166            .name   = "X-Fi Extreme Audio [SBxxxx]",
167            .gpio_type = 1,
168            .i2c_adc = 1 } ,
169          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
170          /* It is really just a normal SB Live 24bit. */
171          /*
172           * CTRL:CA0111-WTLF
173           * ADC: WM8775SEDS
174           * DAC: CS4382-KQZ
175           */
176          /* Tested:
177           * Playback on front, rear, center/lfe speakers
178           * Capture from Mic in.
179           * Not-Tested:
180           * Capture from Line in.
181           * Playback to digital out.
182           */
183          { .serial = 0x10121102,
184            .name   = "X-Fi Extreme Audio [SB0790]",
185            .gpio_type = 1,
186            .i2c_adc = 1 } ,
187          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
188          /* AudigyLS[SB0310] */
189          { .serial = 0x10021102,
190            .name   = "AudigyLS [SB0310]",
191            .ac97   = 1 } , 
192          /* Unknown AudigyLS that also says SB0310 on it */
193          { .serial = 0x10051102,
194            .name   = "AudigyLS [SB0310b]",
195            .ac97   = 1 } ,
196          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
197          { .serial = 0x10061102,
198            .name   = "Live! 7.1 24bit [SB0410]",
199            .gpio_type = 1,
200            .i2c_adc = 1 } ,
201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
202          { .serial = 0x10071102,
203            .name   = "Live! 7.1 24bit [SB0413]",
204            .gpio_type = 1,
205            .i2c_adc = 1 } ,
206          /* New Audigy SE. Has a different DAC. */
207          /* SB0570:
208           * CTRL:CA0106-DAT
209           * ADC: WM8775EDS
210           * DAC: WM8768GEDS
211           */
212          { .serial = 0x100a1102,
213            .name   = "Audigy SE [SB0570]",
214            .gpio_type = 1,
215            .i2c_adc = 1,
216            .spi_dac = 0x4021 } ,
217          /* New Audigy LS. Has a different DAC. */
218          /* SB0570:
219           * CTRL:CA0106-DAT
220           * ADC: WM8775EDS
221           * DAC: WM8768GEDS
222           */
223          { .serial = 0x10111102,
224            .name   = "Audigy SE OEM [SB0570a]",
225            .gpio_type = 1,
226            .i2c_adc = 1,
227            .spi_dac = 0x4021 } ,
228         /* Sound Blaster 5.1vx
229          * Tested: Playback on front, rear, center/lfe speakers
230          * Not-Tested: Capture
231          */
232         { .serial = 0x10041102,
233           .name   = "Sound Blaster 5.1vx [SB1070]",
234           .gpio_type = 1,
235           .i2c_adc = 0,
236           .spi_dac = 0x0124
237          } ,
238          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
239          /* SB0438
240           * CTRL:CA0106-DAT
241           * ADC: WM8775SEDS
242           * DAC: CS4382-KQZ
243           */
244          { .serial = 0x10091462,
245            .name   = "MSI K8N Diamond MB [SB0438]",
246            .gpio_type = 2,
247            .i2c_adc = 1 } ,
248          /* MSI K8N Diamond PLUS MB */
249          { .serial = 0x10091102,
250            .name   = "MSI K8N Diamond MB",
251            .gpio_type = 2,
252            .i2c_adc = 1,
253            .spi_dac = 0x4021 } ,
254         /* Giga-byte GA-G1975X mobo
255          * Novell bnc#395807
256          */
257         /* FIXME: the GPIO and I2C setting aren't tested well */
258         { .serial = 0x1458a006,
259           .name = "Giga-byte GA-G1975X",
260           .gpio_type = 1,
261           .i2c_adc = 1 },
262          /* Shuttle XPC SD31P which has an onboard Creative Labs
263           * Sound Blaster Live! 24-bit EAX
264           * high-definition 7.1 audio processor".
265           * Added using info from andrewvegan in alsa bug #1298
266           */
267          { .serial = 0x30381297,
268            .name   = "Shuttle XPC SD31P [SD31P]",
269            .gpio_type = 1,
270            .i2c_adc = 1 } ,
271         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
272          * Sound Blaster Live! 24-bit EAX
273          * high-definition 7.1 audio processor".
274          * Fixes ALSA bug#1600
275          */
276         { .serial = 0x30411297,
277           .name = "Shuttle XPC SD11G5 [SD11G5]",
278           .gpio_type = 1,
279           .i2c_adc = 1 } ,
280          { .serial = 0,
281            .name   = "AudigyLS [Unknown]" }
282 };
283
284 /* hardware definition */
285 static const struct snd_pcm_hardware snd_ca0106_playback_hw = {
286         .info =                 SNDRV_PCM_INFO_MMAP | 
287                                 SNDRV_PCM_INFO_INTERLEAVED |
288                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
289                                 SNDRV_PCM_INFO_MMAP_VALID |
290                                 SNDRV_PCM_INFO_SYNC_START,
291         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
292         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
293                                  SNDRV_PCM_RATE_192000),
294         .rate_min =             48000,
295         .rate_max =             192000,
296         .channels_min =         2,  //1,
297         .channels_max =         2,  //6,
298         .buffer_bytes_max =     ((65536 - 64) * 8),
299         .period_bytes_min =     64,
300         .period_bytes_max =     (65536 - 64),
301         .periods_min =          2,
302         .periods_max =          8,
303         .fifo_size =            0,
304 };
305
306 static const struct snd_pcm_hardware snd_ca0106_capture_hw = {
307         .info =                 (SNDRV_PCM_INFO_MMAP | 
308                                  SNDRV_PCM_INFO_INTERLEAVED |
309                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
310                                  SNDRV_PCM_INFO_MMAP_VALID),
311         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
312 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
313         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
314                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
315         .rate_min =             44100,
316 #else
317         .rates =                (SNDRV_PCM_RATE_48000 |
318                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
319         .rate_min =             48000,
320 #endif /* FIXME */
321         .rate_max =             192000,
322         .channels_min =         2,
323         .channels_max =         2,
324         .buffer_bytes_max =     65536 - 128,
325         .period_bytes_min =     64,
326         .period_bytes_max =     32768 - 64,
327         .periods_min =          2,
328         .periods_max =          2,
329         .fifo_size =            0,
330 };
331
332 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu, 
333                                           unsigned int reg, 
334                                           unsigned int chn)
335 {
336         unsigned long flags;
337         unsigned int regptr, val;
338   
339         regptr = (reg << 16) | chn;
340
341         spin_lock_irqsave(&emu->emu_lock, flags);
342         outl(regptr, emu->port + PTR);
343         val = inl(emu->port + DATA);
344         spin_unlock_irqrestore(&emu->emu_lock, flags);
345         return val;
346 }
347
348 void snd_ca0106_ptr_write(struct snd_ca0106 *emu, 
349                                    unsigned int reg, 
350                                    unsigned int chn, 
351                                    unsigned int data)
352 {
353         unsigned int regptr;
354         unsigned long flags;
355
356         regptr = (reg << 16) | chn;
357
358         spin_lock_irqsave(&emu->emu_lock, flags);
359         outl(regptr, emu->port + PTR);
360         outl(data, emu->port + DATA);
361         spin_unlock_irqrestore(&emu->emu_lock, flags);
362 }
363
364 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
365                                    unsigned int data)
366 {
367         unsigned int reset, set;
368         unsigned int reg, tmp;
369         int n, result;
370         reg = SPI;
371         if (data > 0xffff) /* Only 16bit values allowed */
372                 return 1;
373         tmp = snd_ca0106_ptr_read(emu, reg, 0);
374         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
375         set = reset | 0x10000; /* Set xxx1xxxx */
376         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
377         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
378         snd_ca0106_ptr_write(emu, reg, 0, set | data);
379         result = 1;
380         /* Wait for status bit to return to 0 */
381         for (n = 0; n < 100; n++) {
382                 udelay(10);
383                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
384                 if (!(tmp & 0x10000)) {
385                         result = 0;
386                         break;
387                 }
388         }
389         if (result) /* Timed out */
390                 return 1;
391         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
392         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
393         return 0;
394 }
395
396 /* The ADC does not support i2c read, so only write is implemented */
397 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
398                                 u32 reg,
399                                 u32 value)
400 {
401         u32 tmp;
402         int timeout = 0;
403         int status;
404         int retry;
405         if ((reg > 0x7f) || (value > 0x1ff)) {
406                 dev_err(emu->card->dev, "i2c_write: invalid values.\n");
407                 return -EINVAL;
408         }
409
410         tmp = reg << 25 | value << 16;
411         /*
412         dev_dbg(emu->card->dev, "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
413         */
414         /* Not sure what this I2C channel controls. */
415         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
416
417         /* This controls the I2C connected to the WM8775 ADC Codec */
418         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
419
420         for (retry = 0; retry < 10; retry++) {
421                 /* Send the data to i2c */
422                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
423                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
424                 tmp = 0;
425                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
426                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
427
428                 /* Wait till the transaction ends */
429                 while (1) {
430                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
431                         /*dev_dbg(emu->card->dev, "I2C:status=0x%x\n", status);*/
432                         timeout++;
433                         if ((status & I2C_A_ADC_START) == 0)
434                                 break;
435
436                         if (timeout > 1000)
437                                 break;
438                 }
439                 //Read back and see if the transaction is successful
440                 if ((status & I2C_A_ADC_ABORT) == 0)
441                         break;
442         }
443
444         if (retry == 10) {
445                 dev_err(emu->card->dev, "Writing to ADC failed!\n");
446                 return -EINVAL;
447         }
448     
449         return 0;
450 }
451
452
453 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
454 {
455         unsigned long flags;
456         unsigned int intr_enable;
457
458         spin_lock_irqsave(&emu->emu_lock, flags);
459         intr_enable = inl(emu->port + INTE) | intrenb;
460         outl(intr_enable, emu->port + INTE);
461         spin_unlock_irqrestore(&emu->emu_lock, flags);
462 }
463
464 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
465 {
466         unsigned long flags;
467         unsigned int intr_enable;
468
469         spin_lock_irqsave(&emu->emu_lock, flags);
470         intr_enable = inl(emu->port + INTE) & ~intrenb;
471         outl(intr_enable, emu->port + INTE);
472         spin_unlock_irqrestore(&emu->emu_lock, flags);
473 }
474
475
476 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
477 {
478         kfree(runtime->private_data);
479 }
480
481 static const int spi_dacd_reg[] = {
482         SPI_DACD0_REG,
483         SPI_DACD1_REG,
484         SPI_DACD2_REG,
485         0,
486         SPI_DACD4_REG,
487 };
488 static const int spi_dacd_bit[] = {
489         SPI_DACD0_BIT,
490         SPI_DACD1_BIT,
491         SPI_DACD2_BIT,
492         0,
493         SPI_DACD4_BIT,
494 };
495
496 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
497 {
498         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
499                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
500                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
501                                      chip->spdif_str_bits[idx]);
502         }
503 }
504
505 static int snd_ca0106_channel_dac(struct snd_ca0106 *chip,
506                                   const struct snd_ca0106_details *details,
507                                   int channel_id)
508 {
509         switch (channel_id) {
510         case PCM_FRONT_CHANNEL:
511                 return (details->spi_dac & 0xf000) >> (4 * 3);
512         case PCM_REAR_CHANNEL:
513                 return (details->spi_dac & 0x0f00) >> (4 * 2);
514         case PCM_CENTER_LFE_CHANNEL:
515                 return (details->spi_dac & 0x00f0) >> (4 * 1);
516         case PCM_UNKNOWN_CHANNEL:
517                 return (details->spi_dac & 0x000f) >> (4 * 0);
518         default:
519                 dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
520                            channel_id);
521         }
522         return 0;
523 }
524
525 static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
526                                     int power)
527 {
528         if (chip->details->spi_dac) {
529                 const int dac = snd_ca0106_channel_dac(chip, chip->details,
530                                                        channel_id);
531                 const int reg = spi_dacd_reg[dac];
532                 const int bit = spi_dacd_bit[dac];
533
534                 if (power)
535                         /* Power up */
536                         chip->spi_dac_reg[reg] &= ~bit;
537                 else
538                         /* Power down */
539                         chip->spi_dac_reg[reg] |= bit;
540                 return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
541         }
542         return 0;
543 }
544
545 /* open_playback callback */
546 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
547                                                 int channel_id)
548 {
549         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
550         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
551         struct snd_ca0106_pcm *epcm;
552         struct snd_pcm_runtime *runtime = substream->runtime;
553         int err;
554
555         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
556
557         if (epcm == NULL)
558                 return -ENOMEM;
559         epcm->emu = chip;
560         epcm->substream = substream;
561         epcm->channel_id=channel_id;
562   
563         runtime->private_data = epcm;
564         runtime->private_free = snd_ca0106_pcm_free_substream;
565   
566         runtime->hw = snd_ca0106_playback_hw;
567
568         channel->emu = chip;
569         channel->number = channel_id;
570
571         channel->use = 1;
572         /*
573         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
574                channel_id, chip, channel);
575         */
576         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
577         channel->epcm = epcm;
578         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
579                 return err;
580         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
581                 return err;
582         snd_pcm_set_sync(substream);
583
584         /* Front channel dac should already be on */
585         if (channel_id != PCM_FRONT_CHANNEL) {
586                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
587                 if (err < 0)
588                         return err;
589         }
590
591         restore_spdif_bits(chip, channel_id);
592
593         return 0;
594 }
595
596 /* close callback */
597 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
598 {
599         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
600         struct snd_pcm_runtime *runtime = substream->runtime;
601         struct snd_ca0106_pcm *epcm = runtime->private_data;
602         chip->playback_channels[epcm->channel_id].use = 0;
603
604         restore_spdif_bits(chip, epcm->channel_id);
605
606         /* Front channel dac should stay on */
607         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
608                 int err;
609                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
610                 if (err < 0)
611                         return err;
612         }
613
614         /* FIXME: maybe zero others */
615         return 0;
616 }
617
618 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
619 {
620         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
621 }
622
623 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
624 {
625         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
626 }
627
628 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
629 {
630         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
631 }
632
633 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
634 {
635         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
636 }
637
638 /* open_capture callback */
639 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
640                                                int channel_id)
641 {
642         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
643         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
644         struct snd_ca0106_pcm *epcm;
645         struct snd_pcm_runtime *runtime = substream->runtime;
646         int err;
647
648         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
649         if (!epcm)
650                 return -ENOMEM;
651
652         epcm->emu = chip;
653         epcm->substream = substream;
654         epcm->channel_id=channel_id;
655   
656         runtime->private_data = epcm;
657         runtime->private_free = snd_ca0106_pcm_free_substream;
658   
659         runtime->hw = snd_ca0106_capture_hw;
660
661         channel->emu = chip;
662         channel->number = channel_id;
663
664         channel->use = 1;
665         /*
666         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
667                channel_id, chip, channel);
668         */
669         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
670         channel->epcm = epcm;
671         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
672                 return err;
673         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
674         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
675                 return err;
676         return 0;
677 }
678
679 /* close callback */
680 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
681 {
682         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
683         struct snd_pcm_runtime *runtime = substream->runtime;
684         struct snd_ca0106_pcm *epcm = runtime->private_data;
685         chip->capture_channels[epcm->channel_id].use = 0;
686         /* FIXME: maybe zero others */
687         return 0;
688 }
689
690 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
691 {
692         return snd_ca0106_pcm_open_capture_channel(substream, 0);
693 }
694
695 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
696 {
697         return snd_ca0106_pcm_open_capture_channel(substream, 1);
698 }
699
700 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
701 {
702         return snd_ca0106_pcm_open_capture_channel(substream, 2);
703 }
704
705 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
706 {
707         return snd_ca0106_pcm_open_capture_channel(substream, 3);
708 }
709
710 /* prepare playback callback */
711 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
712 {
713         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
714         struct snd_pcm_runtime *runtime = substream->runtime;
715         struct snd_ca0106_pcm *epcm = runtime->private_data;
716         int channel = epcm->channel_id;
717         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
718         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
719         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
720         u32 hcfg_set = 0x00000000;
721         u32 hcfg;
722         u32 reg40_mask = 0x30000 << (channel<<1);
723         u32 reg40_set = 0;
724         u32 reg40;
725         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
726         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
727         u32 reg71_set = 0;
728         u32 reg71;
729         int i;
730         
731 #if 0 /* debug */
732         dev_dbg(emu->card->dev,
733                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
734                    "channels=%d, buffer_size=%ld, period_size=%ld, "
735                    "periods=%u, frames_to_bytes=%d\n",
736                    channel, runtime->rate, runtime->format,
737                    runtime->channels, runtime->buffer_size,
738                    runtime->period_size, runtime->periods,
739                    frames_to_bytes(runtime, 1));
740         dev_dbg(emu->card->dev,
741                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
742                    runtime->dma_addr, runtime->dma_area, table_base);
743         dev_dbg(emu->card->dev,
744                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
745                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
746 #endif /* debug */
747         /* Rate can be set per channel. */
748         /* reg40 control host to fifo */
749         /* reg71 controls DAC rate. */
750         switch (runtime->rate) {
751         case 44100:
752                 reg40_set = 0x10000 << (channel<<1);
753                 reg71_set = 0x01010000; 
754                 break;
755         case 48000:
756                 reg40_set = 0;
757                 reg71_set = 0; 
758                 break;
759         case 96000:
760                 reg40_set = 0x20000 << (channel<<1);
761                 reg71_set = 0x02020000; 
762                 break;
763         case 192000:
764                 reg40_set = 0x30000 << (channel<<1);
765                 reg71_set = 0x03030000; 
766                 break;
767         default:
768                 reg40_set = 0;
769                 reg71_set = 0; 
770                 break;
771         }
772         /* Format is a global setting */
773         /* FIXME: Only let the first channel accessed set this. */
774         switch (runtime->format) {
775         case SNDRV_PCM_FORMAT_S16_LE:
776                 hcfg_set = 0;
777                 break;
778         case SNDRV_PCM_FORMAT_S32_LE:
779                 hcfg_set = HCFG_PLAYBACK_S32_LE;
780                 break;
781         default:
782                 hcfg_set = 0;
783                 break;
784         }
785         hcfg = inl(emu->port + HCFG) ;
786         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
787         outl(hcfg, emu->port + HCFG);
788         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
789         reg40 = (reg40 & ~reg40_mask) | reg40_set;
790         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
791         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
792         reg71 = (reg71 & ~reg71_mask) | reg71_set;
793         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
794
795         /* FIXME: Check emu->buffer.size before actually writing to it. */
796         for(i=0; i < runtime->periods; i++) {
797                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
798                 table_base[i*2+1] = period_size_bytes << 16;
799         }
800  
801         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
802         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
803         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
804         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
805         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
806         /* FIXME  test what 0 bytes does. */
807         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
808         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
809         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
810         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
811         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
812 #if 0
813         snd_ca0106_ptr_write(emu, SPCS0, 0,
814                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
815                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
816                                SPCS_GENERATIONSTATUS | 0x00001200 |
817                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
818 #endif
819
820         return 0;
821 }
822
823 /* prepare capture callback */
824 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
825 {
826         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
827         struct snd_pcm_runtime *runtime = substream->runtime;
828         struct snd_ca0106_pcm *epcm = runtime->private_data;
829         int channel = epcm->channel_id;
830         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
831         u32 hcfg_set = 0x00000000;
832         u32 hcfg;
833         u32 over_sampling=0x2;
834         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
835         u32 reg71_set = 0;
836         u32 reg71;
837         
838 #if 0 /* debug */
839         dev_dbg(emu->card->dev,
840                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
841                    "channels=%d, buffer_size=%ld, period_size=%ld, "
842                    "periods=%u, frames_to_bytes=%d\n",
843                    channel, runtime->rate, runtime->format,
844                    runtime->channels, runtime->buffer_size,
845                    runtime->period_size, runtime->periods,
846                    frames_to_bytes(runtime, 1));
847         dev_dbg(emu->card->dev,
848                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
849                    runtime->dma_addr, runtime->dma_area, table_base);
850         dev_dbg(emu->card->dev,
851                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
852                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
853 #endif /* debug */
854         /* reg71 controls ADC rate. */
855         switch (runtime->rate) {
856         case 44100:
857                 reg71_set = 0x00004000;
858                 break;
859         case 48000:
860                 reg71_set = 0; 
861                 break;
862         case 96000:
863                 reg71_set = 0x00008000;
864                 over_sampling=0xa;
865                 break;
866         case 192000:
867                 reg71_set = 0x0000c000; 
868                 over_sampling=0xa;
869                 break;
870         default:
871                 reg71_set = 0; 
872                 break;
873         }
874         /* Format is a global setting */
875         /* FIXME: Only let the first channel accessed set this. */
876         switch (runtime->format) {
877         case SNDRV_PCM_FORMAT_S16_LE:
878                 hcfg_set = 0;
879                 break;
880         case SNDRV_PCM_FORMAT_S32_LE:
881                 hcfg_set = HCFG_CAPTURE_S32_LE;
882                 break;
883         default:
884                 hcfg_set = 0;
885                 break;
886         }
887         hcfg = inl(emu->port + HCFG) ;
888         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
889         outl(hcfg, emu->port + HCFG);
890         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
891         reg71 = (reg71 & ~reg71_mask) | reg71_set;
892         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
893         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
894                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
895         }
896
897
898         /*
899         dev_dbg(emu->card->dev,
900                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
901                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
902                channel, runtime->rate, runtime->format, runtime->channels,
903                runtime->buffer_size, runtime->period_size,
904                frames_to_bytes(runtime, 1));
905         */
906         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
907         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
908         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
909         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
910
911         return 0;
912 }
913
914 /* trigger_playback callback */
915 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
916                                     int cmd)
917 {
918         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
919         struct snd_pcm_runtime *runtime;
920         struct snd_ca0106_pcm *epcm;
921         int channel;
922         int result = 0;
923         struct snd_pcm_substream *s;
924         u32 basic = 0;
925         u32 extended = 0;
926         u32 bits;
927         int running = 0;
928
929         switch (cmd) {
930         case SNDRV_PCM_TRIGGER_START:
931         case SNDRV_PCM_TRIGGER_RESUME:
932                 running = 1;
933                 break;
934         case SNDRV_PCM_TRIGGER_STOP:
935         case SNDRV_PCM_TRIGGER_SUSPEND:
936         default:
937                 running = 0;
938                 break;
939         }
940         snd_pcm_group_for_each_entry(s, substream) {
941                 if (snd_pcm_substream_chip(s) != emu ||
942                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
943                         continue;
944                 runtime = s->runtime;
945                 epcm = runtime->private_data;
946                 channel = epcm->channel_id;
947                 /* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
948                 epcm->running = running;
949                 basic |= (0x1 << channel);
950                 extended |= (0x10 << channel);
951                 snd_pcm_trigger_done(s, substream);
952         }
953         /* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
954
955         switch (cmd) {
956         case SNDRV_PCM_TRIGGER_START:
957         case SNDRV_PCM_TRIGGER_RESUME:
958                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
959                 bits |= extended;
960                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
961                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
962                 bits |= basic;
963                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
964                 break;
965         case SNDRV_PCM_TRIGGER_STOP:
966         case SNDRV_PCM_TRIGGER_SUSPEND:
967                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
968                 bits &= ~basic;
969                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
970                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
971                 bits &= ~extended;
972                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
973                 break;
974         default:
975                 result = -EINVAL;
976                 break;
977         }
978         return result;
979 }
980
981 /* trigger_capture callback */
982 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
983                                     int cmd)
984 {
985         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
986         struct snd_pcm_runtime *runtime = substream->runtime;
987         struct snd_ca0106_pcm *epcm = runtime->private_data;
988         int channel = epcm->channel_id;
989         int result = 0;
990
991         switch (cmd) {
992         case SNDRV_PCM_TRIGGER_START:
993                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
994                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
995                 epcm->running = 1;
996                 break;
997         case SNDRV_PCM_TRIGGER_STOP:
998                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
999                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1000                 epcm->running = 0;
1001                 break;
1002         default:
1003                 result = -EINVAL;
1004                 break;
1005         }
1006         return result;
1007 }
1008
1009 /* pointer_playback callback */
1010 static snd_pcm_uframes_t
1011 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1012 {
1013         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1014         struct snd_pcm_runtime *runtime = substream->runtime;
1015         struct snd_ca0106_pcm *epcm = runtime->private_data;
1016         unsigned int ptr, prev_ptr;
1017         int channel = epcm->channel_id;
1018         int timeout = 10;
1019
1020         if (!epcm->running)
1021                 return 0;
1022
1023         prev_ptr = -1;
1024         do {
1025                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1026                 ptr = (ptr >> 3) * runtime->period_size;
1027                 ptr += bytes_to_frames(runtime,
1028                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1029                 if (ptr >= runtime->buffer_size)
1030                         ptr -= runtime->buffer_size;
1031                 if (prev_ptr == ptr)
1032                         return ptr;
1033                 prev_ptr = ptr;
1034         } while (--timeout);
1035         dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1036         return 0;
1037 }
1038
1039 /* pointer_capture callback */
1040 static snd_pcm_uframes_t
1041 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1042 {
1043         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1044         struct snd_pcm_runtime *runtime = substream->runtime;
1045         struct snd_ca0106_pcm *epcm = runtime->private_data;
1046         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1047         int channel = epcm->channel_id;
1048
1049         if (!epcm->running)
1050                 return 0;
1051
1052         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1053         ptr2 = bytes_to_frames(runtime, ptr1);
1054         ptr=ptr2;
1055         if (ptr >= runtime->buffer_size)
1056                 ptr -= runtime->buffer_size;
1057         /*
1058         dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1059                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1060                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1061                (int)runtime->period_size, (int)runtime->frame_bits,
1062                (int)runtime->rate);
1063         */
1064         return ptr;
1065 }
1066
1067 /* operators */
1068 static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1069         .open =        snd_ca0106_pcm_open_playback_front,
1070         .close =       snd_ca0106_pcm_close_playback,
1071         .prepare =     snd_ca0106_pcm_prepare_playback,
1072         .trigger =     snd_ca0106_pcm_trigger_playback,
1073         .pointer =     snd_ca0106_pcm_pointer_playback,
1074 };
1075
1076 static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1077         .open =        snd_ca0106_pcm_open_0_capture,
1078         .close =       snd_ca0106_pcm_close_capture,
1079         .prepare =     snd_ca0106_pcm_prepare_capture,
1080         .trigger =     snd_ca0106_pcm_trigger_capture,
1081         .pointer =     snd_ca0106_pcm_pointer_capture,
1082 };
1083
1084 static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1085         .open =        snd_ca0106_pcm_open_1_capture,
1086         .close =       snd_ca0106_pcm_close_capture,
1087         .prepare =     snd_ca0106_pcm_prepare_capture,
1088         .trigger =     snd_ca0106_pcm_trigger_capture,
1089         .pointer =     snd_ca0106_pcm_pointer_capture,
1090 };
1091
1092 static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1093         .open =        snd_ca0106_pcm_open_2_capture,
1094         .close =       snd_ca0106_pcm_close_capture,
1095         .prepare =     snd_ca0106_pcm_prepare_capture,
1096         .trigger =     snd_ca0106_pcm_trigger_capture,
1097         .pointer =     snd_ca0106_pcm_pointer_capture,
1098 };
1099
1100 static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1101         .open =        snd_ca0106_pcm_open_3_capture,
1102         .close =       snd_ca0106_pcm_close_capture,
1103         .prepare =     snd_ca0106_pcm_prepare_capture,
1104         .trigger =     snd_ca0106_pcm_trigger_capture,
1105         .pointer =     snd_ca0106_pcm_pointer_capture,
1106 };
1107
1108 static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1109         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1110         .close =        snd_ca0106_pcm_close_playback,
1111         .prepare =      snd_ca0106_pcm_prepare_playback,     
1112         .trigger =      snd_ca0106_pcm_trigger_playback,  
1113         .pointer =      snd_ca0106_pcm_pointer_playback, 
1114 };
1115
1116 static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1117         .open =         snd_ca0106_pcm_open_playback_unknown,
1118         .close =        snd_ca0106_pcm_close_playback,
1119         .prepare =      snd_ca0106_pcm_prepare_playback,     
1120         .trigger =      snd_ca0106_pcm_trigger_playback,  
1121         .pointer =      snd_ca0106_pcm_pointer_playback, 
1122 };
1123
1124 static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1125         .open =         snd_ca0106_pcm_open_playback_rear,
1126         .close =        snd_ca0106_pcm_close_playback,
1127         .prepare =      snd_ca0106_pcm_prepare_playback,     
1128         .trigger =      snd_ca0106_pcm_trigger_playback,  
1129         .pointer =      snd_ca0106_pcm_pointer_playback, 
1130 };
1131
1132
1133 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1134                                              unsigned short reg)
1135 {
1136         struct snd_ca0106 *emu = ac97->private_data;
1137         unsigned long flags;
1138         unsigned short val;
1139
1140         spin_lock_irqsave(&emu->emu_lock, flags);
1141         outb(reg, emu->port + AC97ADDRESS);
1142         val = inw(emu->port + AC97DATA);
1143         spin_unlock_irqrestore(&emu->emu_lock, flags);
1144         return val;
1145 }
1146
1147 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1148                                     unsigned short reg, unsigned short val)
1149 {
1150         struct snd_ca0106 *emu = ac97->private_data;
1151         unsigned long flags;
1152   
1153         spin_lock_irqsave(&emu->emu_lock, flags);
1154         outb(reg, emu->port + AC97ADDRESS);
1155         outw(val, emu->port + AC97DATA);
1156         spin_unlock_irqrestore(&emu->emu_lock, flags);
1157 }
1158
1159 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1160 {
1161         struct snd_ac97_bus *pbus;
1162         struct snd_ac97_template ac97;
1163         int err;
1164         static const struct snd_ac97_bus_ops ops = {
1165                 .write = snd_ca0106_ac97_write,
1166                 .read = snd_ca0106_ac97_read,
1167         };
1168   
1169         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1170                 return err;
1171         pbus->no_vra = 1; /* we don't need VRA */
1172
1173         memset(&ac97, 0, sizeof(ac97));
1174         ac97.private_data = chip;
1175         ac97.scaps = AC97_SCAP_NO_SPDIF;
1176         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1177 }
1178
1179 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1180
1181 static int snd_ca0106_free(struct snd_ca0106 *chip)
1182 {
1183         if (chip->res_port != NULL) {
1184                 /* avoid access to already used hardware */
1185                 ca0106_stop_chip(chip);
1186         }
1187         if (chip->irq >= 0)
1188                 free_irq(chip->irq, chip);
1189         // release the data
1190 #if 1
1191         if (chip->buffer.area)
1192                 snd_dma_free_pages(&chip->buffer);
1193 #endif
1194
1195         // release the i/o port
1196         release_and_free_resource(chip->res_port);
1197
1198         pci_disable_device(chip->pci);
1199         kfree(chip);
1200         return 0;
1201 }
1202
1203 static int snd_ca0106_dev_free(struct snd_device *device)
1204 {
1205         struct snd_ca0106 *chip = device->device_data;
1206         return snd_ca0106_free(chip);
1207 }
1208
1209 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1210 {
1211         unsigned int status;
1212
1213         struct snd_ca0106 *chip = dev_id;
1214         int i;
1215         int mask;
1216         unsigned int stat76;
1217         struct snd_ca0106_channel *pchannel;
1218
1219         status = inl(chip->port + IPR);
1220         if (! status)
1221                 return IRQ_NONE;
1222
1223         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1224         /*
1225         dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1226                    status, stat76);
1227         dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1228                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1229         */
1230         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1231         for(i = 0; i < 4; i++) {
1232                 pchannel = &(chip->playback_channels[i]);
1233                 if (stat76 & mask) {
1234 /* FIXME: Select the correct substream for period elapsed */
1235                         if(pchannel->use) {
1236                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1237                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1238                         }
1239                 }
1240                 /*
1241                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1242                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1243                 */
1244                 mask <<= 1;
1245         }
1246         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1247         for(i = 0; i < 4; i++) {
1248                 pchannel = &(chip->capture_channels[i]);
1249                 if (stat76 & mask) {
1250 /* FIXME: Select the correct substream for period elapsed */
1251                         if(pchannel->use) {
1252                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1253                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1254                         }
1255                 }
1256                 /*
1257                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1258                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1259                 */
1260                 mask <<= 1;
1261         }
1262
1263         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1264
1265         if (chip->midi.dev_id &&
1266             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1267                 if (chip->midi.interrupt)
1268                         chip->midi.interrupt(&chip->midi, status);
1269                 else
1270                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1271         }
1272
1273         // acknowledge the interrupt if necessary
1274         outl(status, chip->port+IPR);
1275
1276         return IRQ_HANDLED;
1277 }
1278
1279 static const struct snd_pcm_chmap_elem surround_map[] = {
1280         { .channels = 2,
1281           .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1282         { }
1283 };
1284
1285 static const struct snd_pcm_chmap_elem clfe_map[] = {
1286         { .channels = 2,
1287           .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1288         { }
1289 };
1290
1291 static const struct snd_pcm_chmap_elem side_map[] = {
1292         { .channels = 2,
1293           .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1294         { }
1295 };
1296
1297 static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1298 {
1299         struct snd_pcm *pcm;
1300         struct snd_pcm_substream *substream;
1301         const struct snd_pcm_chmap_elem *map = NULL;
1302         int err;
1303   
1304         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1305         if (err < 0)
1306                 return err;
1307   
1308         pcm->private_data = emu;
1309
1310         switch (device) {
1311         case 0:
1312           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1313           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1314           map = snd_pcm_std_chmaps;
1315           break;
1316         case 1:
1317           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1318           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1319           map = surround_map;
1320           break;
1321         case 2:
1322           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1323           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1324           map = clfe_map;
1325           break;
1326         case 3:
1327           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1328           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1329           map = side_map;
1330           break;
1331         }
1332
1333         pcm->info_flags = 0;
1334         strcpy(pcm->name, "CA0106");
1335
1336         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1337             substream; 
1338             substream = substream->next) {
1339                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1340                                            &emu->pci->dev,
1341                                            64*1024, 64*1024);
1342         }
1343
1344         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1345               substream; 
1346               substream = substream->next) {
1347                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1348                                            &emu->pci->dev,
1349                                            64*1024, 64*1024);
1350         }
1351   
1352         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1353                                      1 << 2, NULL);
1354         if (err < 0)
1355                 return err;
1356
1357         emu->pcm[device] = pcm;
1358   
1359         return 0;
1360 }
1361
1362 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1363 static unsigned int spi_dac_init[] = {
1364         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1365         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1366         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1367         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1368         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1369         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1370         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1371         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1372         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1373         SPI_REG(9,              0x00),
1374         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1375         SPI_REG(12,             0x00),
1376         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1377         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1378         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1379 };
1380
1381 static unsigned int i2c_adc_init[][2] = {
1382         { 0x17, 0x00 }, /* Reset */
1383         { 0x07, 0x00 }, /* Timeout */
1384         { 0x0b, 0x22 },  /* Interface control */
1385         { 0x0c, 0x22 },  /* Master mode control */
1386         { 0x0d, 0x08 },  /* Powerdown control */
1387         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1388         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1389         { 0x10, 0x7b },  /* ALC Control 1 */
1390         { 0x11, 0x00 },  /* ALC Control 2 */
1391         { 0x12, 0x32 },  /* ALC Control 3 */
1392         { 0x13, 0x00 },  /* Noise gate control */
1393         { 0x14, 0xa6 },  /* Limiter control */
1394         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1395 };
1396
1397 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1398 {
1399         int ch;
1400         unsigned int def_bits;
1401
1402         outl(0, chip->port + INTE);
1403
1404         /*
1405          *  Init to 0x02109204 :
1406          *  Clock accuracy    = 0     (1000ppm)
1407          *  Sample Rate       = 2     (48kHz)
1408          *  Audio Channel     = 1     (Left of 2)
1409          *  Source Number     = 0     (Unspecified)
1410          *  Generation Status = 1     (Original for Cat Code 12)
1411          *  Cat Code          = 12    (Digital Signal Mixer)
1412          *  Mode              = 0     (Mode 0)
1413          *  Emphasis          = 0     (None)
1414          *  CP                = 1     (Copyright unasserted)
1415          *  AN                = 0     (Audio data)
1416          *  P                 = 0     (Consumer)
1417          */
1418         def_bits =
1419                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1420                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1421                 SPCS_GENERATIONSTATUS | 0x00001200 |
1422                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1423         if (!resume) {
1424                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1425                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1426                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1427                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1428         }
1429         /* Only SPCS1 has been tested */
1430         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1431         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1432         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1433         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1434
1435         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1436         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1437
1438         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1439         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1440         outw(0x8000, chip->port + AC97DATA);
1441 #if 0 /* FIXME: what are these? */
1442         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1443         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1444         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1445         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1446 #endif
1447
1448         /* OSS drivers set this. */
1449         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1450
1451         /* Analog or Digital output */
1452         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1453         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1454          * Use 0x000f0000 for surround71
1455          */
1456         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1457
1458         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1459         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1460         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1461
1462         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1463         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1464         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1465          * Only lower 16 bits matter.
1466          */
1467         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1468         /* SPDIF IN Volume */
1469         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1470         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1471         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1472
1473         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1474         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1475         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1476         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1477
1478         for (ch = 0; ch < 4; ch++) {
1479                 /* Only high 16 bits matter */
1480                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1481                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1482 #if 0 /* Mute */
1483                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1484                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1485                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1486                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1487 #endif
1488         }
1489         if (chip->details->i2c_adc == 1) {
1490                 /* Select MIC, Line in, TAD in, AUX in */
1491                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1492                 /* Default to CAPTURE_SOURCE to i2s in */
1493                 if (!resume)
1494                         chip->capture_source = 3;
1495         } else if (chip->details->ac97 == 1) {
1496                 /* Default to AC97 in */
1497                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1498                 /* Default to CAPTURE_SOURCE to AC97 in */
1499                 if (!resume)
1500                         chip->capture_source = 4;
1501         } else {
1502                 /* Select MIC, Line in, TAD in, AUX in */
1503                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1504                 /* Default to Set CAPTURE_SOURCE to i2s in */
1505                 if (!resume)
1506                         chip->capture_source = 3;
1507         }
1508
1509         if (chip->details->gpio_type == 2) {
1510                 /* The SB0438 use GPIO differently. */
1511                 /* FIXME: Still need to find out what the other GPIO bits do.
1512                  * E.g. For digital spdif out.
1513                  */
1514                 outl(0x0, chip->port+GPIO);
1515                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1516                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1517         } else if (chip->details->gpio_type == 1) {
1518                 /* The SB0410 and SB0413 use GPIO differently. */
1519                 /* FIXME: Still need to find out what the other GPIO bits do.
1520                  * E.g. For digital spdif out.
1521                  */
1522                 outl(0x0, chip->port+GPIO);
1523                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1524                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1525         } else {
1526                 outl(0x0, chip->port+GPIO);
1527                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1528                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1529         }
1530         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1531
1532         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1533         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1534         /* outl(0x00001409, chip->port+HCFG); */
1535         /* outl(0x00000009, chip->port+HCFG); */
1536         /* AC97 2.0, Enable outputs. */
1537         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1538
1539         if (chip->details->i2c_adc == 1) {
1540                 /* The SB0410 and SB0413 use I2C to control ADC. */
1541                 int size, n;
1542
1543                 size = ARRAY_SIZE(i2c_adc_init);
1544                 /* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1545                 for (n = 0; n < size; n++)
1546                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1547                                              i2c_adc_init[n][1]);
1548                 for (n = 0; n < 4; n++) {
1549                         chip->i2c_capture_volume[n][0] = 0xcf;
1550                         chip->i2c_capture_volume[n][1] = 0xcf;
1551                 }
1552                 chip->i2c_capture_source = 2; /* Line in */
1553                 /* Enable Line-in capture. MIC in currently untested. */
1554                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1555         }
1556
1557         if (chip->details->spi_dac) {
1558                 /* The SB0570 use SPI to control DAC. */
1559                 int size, n;
1560
1561                 size = ARRAY_SIZE(spi_dac_init);
1562                 for (n = 0; n < size; n++) {
1563                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1564
1565                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1566                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1567                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1568                 }
1569
1570                 /* Enable front dac only */
1571                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1572         }
1573 }
1574
1575 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1576 {
1577         /* disable interrupts */
1578         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1579         outl(0, chip->port + INTE);
1580         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1581         udelay(1000);
1582         /* disable audio */
1583         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1584         outl(0, chip->port + HCFG);
1585         /* FIXME: We need to stop and DMA transfers here.
1586          *        But as I am not sure how yet, we cannot from the dma pages.
1587          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1588          */
1589 }
1590
1591 static int snd_ca0106_create(int dev, struct snd_card *card,
1592                                          struct pci_dev *pci,
1593                                          struct snd_ca0106 **rchip)
1594 {
1595         struct snd_ca0106 *chip;
1596         const struct snd_ca0106_details *c;
1597         int err;
1598         static const struct snd_device_ops ops = {
1599                 .dev_free = snd_ca0106_dev_free,
1600         };
1601
1602         *rchip = NULL;
1603
1604         err = pci_enable_device(pci);
1605         if (err < 0)
1606                 return err;
1607         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
1608             dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1609                 dev_err(card->dev, "error to set 32bit mask DMA\n");
1610                 pci_disable_device(pci);
1611                 return -ENXIO;
1612         }
1613
1614         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1615         if (chip == NULL) {
1616                 pci_disable_device(pci);
1617                 return -ENOMEM;
1618         }
1619
1620         chip->card = card;
1621         chip->pci = pci;
1622         chip->irq = -1;
1623
1624         spin_lock_init(&chip->emu_lock);
1625
1626         chip->port = pci_resource_start(pci, 0);
1627         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1628         if (!chip->res_port) {
1629                 snd_ca0106_free(chip);
1630                 dev_err(card->dev, "cannot allocate the port\n");
1631                 return -EBUSY;
1632         }
1633
1634         if (request_irq(pci->irq, snd_ca0106_interrupt,
1635                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1636                 snd_ca0106_free(chip);
1637                 dev_err(card->dev, "cannot grab irq\n");
1638                 return -EBUSY;
1639         }
1640         chip->irq = pci->irq;
1641         card->sync_irq = chip->irq;
1642
1643         /* This stores the periods table. */
1644         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1645                                 1024, &chip->buffer) < 0) {
1646                 snd_ca0106_free(chip);
1647                 return -ENOMEM;
1648         }
1649
1650         pci_set_master(pci);
1651         /* read serial */
1652         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1653         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1654         dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1655                chip->model, pci->revision, chip->serial);
1656         strcpy(card->driver, "CA0106");
1657         strcpy(card->shortname, "CA0106");
1658
1659         for (c = ca0106_chip_details; c->serial; c++) {
1660                 if (subsystem[dev]) {
1661                         if (c->serial == subsystem[dev])
1662                                 break;
1663                 } else if (c->serial == chip->serial)
1664                         break;
1665         }
1666         chip->details = c;
1667         if (subsystem[dev]) {
1668                 dev_info(card->dev, "Sound card name=%s, "
1669                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1670                        c->name, chip->serial, subsystem[dev]);
1671         }
1672
1673         sprintf(card->longname, "%s at 0x%lx irq %i",
1674                 c->name, chip->port, chip->irq);
1675
1676         ca0106_init_chip(chip, 0);
1677
1678         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1679         if (err < 0) {
1680                 snd_ca0106_free(chip);
1681                 return err;
1682         }
1683         *rchip = chip;
1684         return 0;
1685 }
1686
1687
1688 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1689 {
1690         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1691 }
1692
1693 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1694 {
1695         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1696 }
1697
1698 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1699 {
1700         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1701                                                   midi->port + idx, 0);
1702 }
1703
1704 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1705 {
1706         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1707 }
1708
1709 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1710 {
1711         return ((struct snd_ca0106 *)dev_id)->card;
1712 }
1713
1714 static int ca0106_dev_id_port(void *dev_id)
1715 {
1716         return ((struct snd_ca0106 *)dev_id)->port;
1717 }
1718
1719 static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1720 {
1721         struct snd_ca_midi *midi;
1722         char *name;
1723         int err;
1724
1725         if (channel == CA0106_MIDI_CHAN_B) {
1726                 name = "CA0106 MPU-401 (UART) B";
1727                 midi =  &chip->midi2;
1728                 midi->tx_enable = INTE_MIDI_TX_B;
1729                 midi->rx_enable = INTE_MIDI_RX_B;
1730                 midi->ipr_tx = IPR_MIDI_TX_B;
1731                 midi->ipr_rx = IPR_MIDI_RX_B;
1732                 midi->port = MIDI_UART_B_DATA;
1733         } else {
1734                 name = "CA0106 MPU-401 (UART)";
1735                 midi =  &chip->midi;
1736                 midi->tx_enable = INTE_MIDI_TX_A;
1737                 midi->rx_enable = INTE_MIDI_TX_B;
1738                 midi->ipr_tx = IPR_MIDI_TX_A;
1739                 midi->ipr_rx = IPR_MIDI_RX_A;
1740                 midi->port = MIDI_UART_A_DATA;
1741         }
1742
1743         midi->reset = CA0106_MPU401_RESET;
1744         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1745         midi->ack = CA0106_MPU401_ACK;
1746
1747         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1748         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1749
1750         midi->channel = channel;
1751
1752         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1753         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1754
1755         midi->read = ca0106_midi_read;
1756         midi->write = ca0106_midi_write;
1757
1758         midi->get_dev_id_card = ca0106_dev_id_card;
1759         midi->get_dev_id_port = ca0106_dev_id_port;
1760
1761         midi->dev_id = chip;
1762         
1763         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1764                 return err;
1765
1766         return 0;
1767 }
1768
1769
1770 static int snd_ca0106_probe(struct pci_dev *pci,
1771                                         const struct pci_device_id *pci_id)
1772 {
1773         static int dev;
1774         struct snd_card *card;
1775         struct snd_ca0106 *chip;
1776         int i, err;
1777
1778         if (dev >= SNDRV_CARDS)
1779                 return -ENODEV;
1780         if (!enable[dev]) {
1781                 dev++;
1782                 return -ENOENT;
1783         }
1784
1785         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1786                            0, &card);
1787         if (err < 0)
1788                 return err;
1789
1790         err = snd_ca0106_create(dev, card, pci, &chip);
1791         if (err < 0)
1792                 goto error;
1793         card->private_data = chip;
1794
1795         for (i = 0; i < 4; i++) {
1796                 err = snd_ca0106_pcm(chip, i);
1797                 if (err < 0)
1798                         goto error;
1799         }
1800
1801         if (chip->details->ac97 == 1) {
1802                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1803                 err = snd_ca0106_ac97(chip);
1804                 if (err < 0)
1805                         goto error;
1806         }
1807         err = snd_ca0106_mixer(chip);
1808         if (err < 0)
1809                 goto error;
1810
1811         dev_dbg(card->dev, "probe for MIDI channel A ...");
1812         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1813         if (err < 0)
1814                 goto error;
1815         dev_dbg(card->dev, " done.\n");
1816
1817 #ifdef CONFIG_SND_PROC_FS
1818         snd_ca0106_proc_init(chip);
1819 #endif
1820
1821         err = snd_card_register(card);
1822         if (err < 0)
1823                 goto error;
1824
1825         pci_set_drvdata(pci, card);
1826         dev++;
1827         return 0;
1828
1829  error:
1830         snd_card_free(card);
1831         return err;
1832 }
1833
1834 static void snd_ca0106_remove(struct pci_dev *pci)
1835 {
1836         snd_card_free(pci_get_drvdata(pci));
1837 }
1838
1839 #ifdef CONFIG_PM_SLEEP
1840 static int snd_ca0106_suspend(struct device *dev)
1841 {
1842         struct snd_card *card = dev_get_drvdata(dev);
1843         struct snd_ca0106 *chip = card->private_data;
1844
1845         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1846         if (chip->details->ac97)
1847                 snd_ac97_suspend(chip->ac97);
1848         snd_ca0106_mixer_suspend(chip);
1849
1850         ca0106_stop_chip(chip);
1851         return 0;
1852 }
1853
1854 static int snd_ca0106_resume(struct device *dev)
1855 {
1856         struct snd_card *card = dev_get_drvdata(dev);
1857         struct snd_ca0106 *chip = card->private_data;
1858         int i;
1859
1860         ca0106_init_chip(chip, 1);
1861
1862         if (chip->details->ac97)
1863                 snd_ac97_resume(chip->ac97);
1864         snd_ca0106_mixer_resume(chip);
1865         if (chip->details->spi_dac) {
1866                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1867                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1868         }
1869
1870         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1871         return 0;
1872 }
1873
1874 static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1875 #define SND_CA0106_PM_OPS       &snd_ca0106_pm
1876 #else
1877 #define SND_CA0106_PM_OPS       NULL
1878 #endif
1879
1880 // PCI IDs
1881 static const struct pci_device_id snd_ca0106_ids[] = {
1882         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1883         { 0, }
1884 };
1885 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1886
1887 // pci_driver definition
1888 static struct pci_driver ca0106_driver = {
1889         .name = KBUILD_MODNAME,
1890         .id_table = snd_ca0106_ids,
1891         .probe = snd_ca0106_probe,
1892         .remove = snd_ca0106_remove,
1893         .driver = {
1894                 .pm = SND_CA0106_PM_OPS,
1895         },
1896 };
1897
1898 module_pci_driver(ca0106_driver);