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1 /*
2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
4  *  Version: 0.0.25
5  *
6  *  FEATURES currently supported:
7  *    Front, Rear and Center/LFE.
8  *    Surround40 and Surround51.
9  *    Capture from MIC an LINE IN input.
10  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
11  *    (One can use a standard mono mini-jack to one RCA plugs cable.
12  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
13  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
14  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
15  *    Notes on how to capture sound:
16  *      The AC97 is used in the PLAYBACK direction.
17  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
18  *      So, to record from the MIC, set the MIC Playback volume to max,
19  *      unmute the MIC and turn up the MASTER Playback volume.
20  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
21  *
22  *    The only playback controls that currently do anything are: -
23  *    Analog Front
24  *    Analog Rear
25  *    Analog Center/LFE
26  *    SPDIF Front
27  *    SPDIF Rear
28  *    SPDIF Center/LFE
29  *
30  *    For capture from Mic in or Line in.
31  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
32  *
33  *    CAPTURE feedback into PLAYBACK
34  *
35  *  Changelog:
36  *    Support interrupts per period.
37  *    Removed noise from Center/LFE channel when in Analog mode.
38  *    Rename and remove mixer controls.
39  *  0.0.6
40  *    Use separate card based DMA buffer for periods table list.
41  *  0.0.7
42  *    Change remove and rename ctrls into lists.
43  *  0.0.8
44  *    Try to fix capture sources.
45  *  0.0.9
46  *    Fix AC3 output.
47  *    Enable S32_LE format support.
48  *  0.0.10
49  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
50  *  0.0.11
51  *    Add Model name recognition.
52  *  0.0.12
53  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
54  *    Remove redundent "voice" handling.
55  *  0.0.13
56  *    Single trigger call for multi channels.
57  *  0.0.14
58  *    Set limits based on what the sound card hardware can do.
59  *    playback periods_min=2, periods_max=8
60  *    capture hw constraints require period_size = n * 64 bytes.
61  *    playback hw constraints require period_size = n * 64 bytes.
62  *  0.0.15
63  *    Minor updates.
64  *  0.0.16
65  *    Implement 192000 sample rate.
66  *  0.0.17
67  *    Add support for SB0410 and SB0413.
68  *  0.0.18
69  *    Modified Copyright message.
70  *  0.0.19
71  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
72  *    The output codec needs resetting, otherwise all output is muted.
73  *  0.0.20
74  *    Merge "pci_disable_device(pci);" fixes.
75  *  0.0.21
76  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
77  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
78  *  0.0.22
79  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
80  *  0.0.23
81  *    Implement support for Line-in capture on SB Live 24bit.
82  *  0.0.24
83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
84  *  0.0.25
85  *    Powerdown SPI DAC channels when not in use
86  *
87  *  BUGS:
88  *    Some stability problems when unloading the snd-ca0106 kernel module.
89  *    --
90  *
91  *  TODO:
92  *    4 Capture channels, only one implemented so far.
93  *    Other capture rates apart from 48khz not implemented.
94  *    MIDI
95  *    --
96  *  GENERAL INFO:
97  *    Model: SB0310
98  *    P17 Chip: CA0106-DAT
99  *    AC97 Codec: STAC 9721
100  *    ADC: Philips 1361T (Stereo 24bit)
101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
102  *
103  *  GENERAL INFO:
104  *    Model: SB0410
105  *    P17 Chip: CA0106-DAT
106  *    AC97 Codec: None
107  *    ADC: WM8775EDS (4 Channel)
108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
109  *    SPDIF Out control switches between Mic in and SPDIF out.
110  *    No sound out or mic input working yet.
111  *
112  *  GENERAL INFO:
113  *    Model: SB0413
114  *    P17 Chip: CA0106-DAT
115  *    AC97 Codec: None.
116  *    ADC: Unknown
117  *    DAC: Unknown
118  *    Trying to handle it like the SB0410.
119  *
120  *  This code was initally 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/moduleparam.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 int 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 = 1 } ,
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 = 1 } ,
242 	 /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
243 	 /* SB0438
244 	  * CTRL:CA0106-DAT
245 	  * ADC: WM8775SEDS
246 	  * DAC: CS4382-KQZ
247 	  */
248 	 { .serial = 0x10091462,
249 	   .name   = "MSI K8N Diamond MB [SB0438]",
250 	   .gpio_type = 2,
251 	   .i2c_adc = 1 } ,
252 	 /* MSI K8N Diamond PLUS MB */
253 	 { .serial = 0x10091102,
254 	   .name   = "MSI K8N Diamond MB",
255 	   .gpio_type = 2,
256 	   .i2c_adc = 1,
257 	   .spi_dac = 1 } ,
258 	 /* Shuttle XPC SD31P which has an onboard Creative Labs
259 	  * Sound Blaster Live! 24-bit EAX
260 	  * high-definition 7.1 audio processor".
261 	  * Added using info from andrewvegan in alsa bug #1298
262 	  */
263 	 { .serial = 0x30381297,
264 	   .name   = "Shuttle XPC SD31P [SD31P]",
265 	   .gpio_type = 1,
266 	   .i2c_adc = 1 } ,
267 	/* Shuttle XPC SD11G5 which has an onboard Creative Labs
268 	 * Sound Blaster Live! 24-bit EAX
269 	 * high-definition 7.1 audio processor".
270 	 * Fixes ALSA bug#1600
271          */
272 	{ .serial = 0x30411297,
273 	  .name = "Shuttle XPC SD11G5 [SD11G5]",
274 	  .gpio_type = 1,
275 	  .i2c_adc = 1 } ,
276 	 { .serial = 0,
277 	   .name   = "AudigyLS [Unknown]" }
278 };
279 
280 /* hardware definition */
281 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
282 	.info =			SNDRV_PCM_INFO_MMAP |
283 				SNDRV_PCM_INFO_INTERLEAVED |
284 				SNDRV_PCM_INFO_BLOCK_TRANSFER |
285 				SNDRV_PCM_INFO_MMAP_VALID |
286 				SNDRV_PCM_INFO_SYNC_START,
287 	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
288 	.rates =		(SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
289 				 SNDRV_PCM_RATE_192000),
290 	.rate_min =		48000,
291 	.rate_max =		192000,
292 	.channels_min =		2,  //1,
293 	.channels_max =		2,  //6,
294 	.buffer_bytes_max =	((65536 - 64) * 8),
295 	.period_bytes_min =	64,
296 	.period_bytes_max =	(65536 - 64),
297 	.periods_min =		2,
298 	.periods_max =		8,
299 	.fifo_size =		0,
300 };
301 
302 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
303 	.info =			(SNDRV_PCM_INFO_MMAP |
304 				 SNDRV_PCM_INFO_INTERLEAVED |
305 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
306 				 SNDRV_PCM_INFO_MMAP_VALID),
307 	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
308 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
309 	.rates =		(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
310 				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
311 	.rate_min =		44100,
312 #else
313 	.rates =		(SNDRV_PCM_RATE_48000 |
314 				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
315 	.rate_min =		48000,
316 #endif /* FIXME */
317 	.rate_max =		192000,
318 	.channels_min =		2,
319 	.channels_max =		2,
320 	.buffer_bytes_max =	((65536 - 64) * 8),
321 	.period_bytes_min =	64,
322 	.period_bytes_max =	(65536 - 64),
323 	.periods_min =		2,
324 	.periods_max =		2,
325 	.fifo_size =		0,
326 };
327 
snd_ca0106_ptr_read(struct snd_ca0106 * emu,unsigned int reg,unsigned int chn)328 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
329 					  unsigned int reg,
330 					  unsigned int chn)
331 {
332 	unsigned long flags;
333 	unsigned int regptr, val;
334 
335 	regptr = (reg << 16) | chn;
336 
337 	spin_lock_irqsave(&emu->emu_lock, flags);
338 	outl(regptr, emu->port + PTR);
339 	val = inl(emu->port + DATA);
340 	spin_unlock_irqrestore(&emu->emu_lock, flags);
341 	return val;
342 }
343 
snd_ca0106_ptr_write(struct snd_ca0106 * emu,unsigned int reg,unsigned int chn,unsigned int data)344 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
345 				   unsigned int reg,
346 				   unsigned int chn,
347 				   unsigned int data)
348 {
349 	unsigned int regptr;
350 	unsigned long flags;
351 
352 	regptr = (reg << 16) | chn;
353 
354 	spin_lock_irqsave(&emu->emu_lock, flags);
355 	outl(regptr, emu->port + PTR);
356 	outl(data, emu->port + DATA);
357 	spin_unlock_irqrestore(&emu->emu_lock, flags);
358 }
359 
snd_ca0106_spi_write(struct snd_ca0106 * emu,unsigned int data)360 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
361 				   unsigned int data)
362 {
363 	unsigned int reset, set;
364 	unsigned int reg, tmp;
365 	int n, result;
366 	reg = SPI;
367 	if (data > 0xffff) /* Only 16bit values allowed */
368 		return 1;
369 	tmp = snd_ca0106_ptr_read(emu, reg, 0);
370 	reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
371 	set = reset | 0x10000; /* Set xxx1xxxx */
372 	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
373 	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
374 	snd_ca0106_ptr_write(emu, reg, 0, set | data);
375 	result = 1;
376 	/* Wait for status bit to return to 0 */
377 	for (n = 0; n < 100; n++) {
378 		udelay(10);
379 		tmp = snd_ca0106_ptr_read(emu, reg, 0);
380 		if (!(tmp & 0x10000)) {
381 			result = 0;
382 			break;
383 		}
384 	}
385 	if (result) /* Timed out */
386 		return 1;
387 	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
388 	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
389 	return 0;
390 }
391 
392 /* The ADC does not support i2c read, so only write is implemented */
snd_ca0106_i2c_write(struct snd_ca0106 * emu,u32 reg,u32 value)393 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
394 				u32 reg,
395 				u32 value)
396 {
397 	u32 tmp;
398 	int timeout = 0;
399 	int status;
400 	int retry;
401 	if ((reg > 0x7f) || (value > 0x1ff)) {
402 		snd_printk(KERN_ERR "i2c_write: invalid values.\n");
403 		return -EINVAL;
404 	}
405 
406 	tmp = reg << 25 | value << 16;
407 	// snd_printk("I2C-write:reg=0x%x, value=0x%x\n", reg, value);
408 	/* Not sure what this I2C channel controls. */
409 	/* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
410 
411 	/* This controls the I2C connected to the WM8775 ADC Codec */
412 	snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
413 
414 	for (retry = 0; retry < 10; retry++) {
415 		/* Send the data to i2c */
416 		//tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
417 		//tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
418 		tmp = 0;
419 		tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
420 		snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
421 
422 		/* Wait till the transaction ends */
423 		while (1) {
424 			status = snd_ca0106_ptr_read(emu, I2C_A, 0);
425                 	//snd_printk("I2C:status=0x%x\n", status);
426 			timeout++;
427 			if ((status & I2C_A_ADC_START) == 0)
428 				break;
429 
430 			if (timeout > 1000)
431 				break;
432 		}
433 		//Read back and see if the transaction is successful
434 		if ((status & I2C_A_ADC_ABORT) == 0)
435 			break;
436 	}
437 
438 	if (retry == 10) {
439 		snd_printk(KERN_ERR "Writing to ADC failed!\n");
440 		return -EINVAL;
441 	}
442 
443     	return 0;
444 }
445 
446 
snd_ca0106_intr_enable(struct snd_ca0106 * emu,unsigned int intrenb)447 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
448 {
449 	unsigned long flags;
450 	unsigned int intr_enable;
451 
452 	spin_lock_irqsave(&emu->emu_lock, flags);
453 	intr_enable = inl(emu->port + INTE) | intrenb;
454 	outl(intr_enable, emu->port + INTE);
455 	spin_unlock_irqrestore(&emu->emu_lock, flags);
456 }
457 
snd_ca0106_intr_disable(struct snd_ca0106 * emu,unsigned int intrenb)458 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
459 {
460 	unsigned long flags;
461 	unsigned int intr_enable;
462 
463 	spin_lock_irqsave(&emu->emu_lock, flags);
464 	intr_enable = inl(emu->port + INTE) & ~intrenb;
465 	outl(intr_enable, emu->port + INTE);
466 	spin_unlock_irqrestore(&emu->emu_lock, flags);
467 }
468 
469 
snd_ca0106_pcm_free_substream(struct snd_pcm_runtime * runtime)470 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
471 {
472 	kfree(runtime->private_data);
473 }
474 
475 static const int spi_dacd_reg[] = {
476 	[PCM_FRONT_CHANNEL]	= SPI_DACD4_REG,
477 	[PCM_REAR_CHANNEL]	= SPI_DACD0_REG,
478 	[PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
479 	[PCM_UNKNOWN_CHANNEL]	= SPI_DACD1_REG,
480 };
481 static const int spi_dacd_bit[] = {
482 	[PCM_FRONT_CHANNEL]	= SPI_DACD4_BIT,
483 	[PCM_REAR_CHANNEL]	= SPI_DACD0_BIT,
484 	[PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
485 	[PCM_UNKNOWN_CHANNEL]	= SPI_DACD1_BIT,
486 };
487 
restore_spdif_bits(struct snd_ca0106 * chip,int idx)488 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
489 {
490 	if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
491 		chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
492 		snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
493 				     chip->spdif_str_bits[idx]);
494 	}
495 }
496 
497 /* open_playback callback */
snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream * substream,int channel_id)498 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
499 						int channel_id)
500 {
501 	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
502         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
503 	struct snd_ca0106_pcm *epcm;
504 	struct snd_pcm_runtime *runtime = substream->runtime;
505 	int err;
506 
507 	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
508 
509 	if (epcm == NULL)
510 		return -ENOMEM;
511 	epcm->emu = chip;
512 	epcm->substream = substream;
513         epcm->channel_id=channel_id;
514 
515 	runtime->private_data = epcm;
516 	runtime->private_free = snd_ca0106_pcm_free_substream;
517 
518 	runtime->hw = snd_ca0106_playback_hw;
519 
520         channel->emu = chip;
521         channel->number = channel_id;
522 
523 	channel->use = 1;
524         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
525         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
526 	channel->epcm = epcm;
527 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
528                 return err;
529 	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
530                 return err;
531 	snd_pcm_set_sync(substream);
532 
533 	if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
534 		const int reg = spi_dacd_reg[channel_id];
535 
536 		/* Power up dac */
537 		chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
538 		err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
539 		if (err < 0)
540 			return err;
541 	}
542 
543 	restore_spdif_bits(chip, channel_id);
544 
545 	return 0;
546 }
547 
548 /* close callback */
snd_ca0106_pcm_close_playback(struct snd_pcm_substream * substream)549 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
550 {
551 	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
552 	struct snd_pcm_runtime *runtime = substream->runtime;
553         struct snd_ca0106_pcm *epcm = runtime->private_data;
554 	chip->playback_channels[epcm->channel_id].use = 0;
555 
556 	restore_spdif_bits(chip, epcm->channel_id);
557 
558 	if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
559 		const int reg = spi_dacd_reg[epcm->channel_id];
560 
561 		/* Power down DAC */
562 		chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
563 		snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
564 	}
565 	/* FIXME: maybe zero others */
566 	return 0;
567 }
568 
snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream * substream)569 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
570 {
571 	return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
572 }
573 
snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream * substream)574 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
575 {
576 	return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
577 }
578 
snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream * substream)579 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
580 {
581 	return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
582 }
583 
snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream * substream)584 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
585 {
586 	return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
587 }
588 
589 /* open_capture callback */
snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream * substream,int channel_id)590 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
591 					       int channel_id)
592 {
593 	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
594         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
595 	struct snd_ca0106_pcm *epcm;
596 	struct snd_pcm_runtime *runtime = substream->runtime;
597 	int err;
598 
599 	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
600 	if (epcm == NULL) {
601 		snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
602 		return -ENOMEM;
603         }
604 	epcm->emu = chip;
605 	epcm->substream = substream;
606         epcm->channel_id=channel_id;
607 
608 	runtime->private_data = epcm;
609 	runtime->private_free = snd_ca0106_pcm_free_substream;
610 
611 	runtime->hw = snd_ca0106_capture_hw;
612 
613         channel->emu = chip;
614         channel->number = channel_id;
615 
616 	channel->use = 1;
617         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
618         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
619         channel->epcm = epcm;
620 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
621                 return err;
622 	//snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
623 	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
624                 return err;
625 	return 0;
626 }
627 
628 /* close callback */
snd_ca0106_pcm_close_capture(struct snd_pcm_substream * substream)629 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
630 {
631 	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
632 	struct snd_pcm_runtime *runtime = substream->runtime;
633         struct snd_ca0106_pcm *epcm = runtime->private_data;
634 	chip->capture_channels[epcm->channel_id].use = 0;
635 	/* FIXME: maybe zero others */
636 	return 0;
637 }
638 
snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream * substream)639 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
640 {
641 	return snd_ca0106_pcm_open_capture_channel(substream, 0);
642 }
643 
snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream * substream)644 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
645 {
646 	return snd_ca0106_pcm_open_capture_channel(substream, 1);
647 }
648 
snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream * substream)649 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
650 {
651 	return snd_ca0106_pcm_open_capture_channel(substream, 2);
652 }
653 
snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream * substream)654 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
655 {
656 	return snd_ca0106_pcm_open_capture_channel(substream, 3);
657 }
658 
659 /* hw_params callback */
snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)660 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
661 				      struct snd_pcm_hw_params *hw_params)
662 {
663 	return snd_pcm_lib_malloc_pages(substream,
664 					params_buffer_bytes(hw_params));
665 }
666 
667 /* hw_free callback */
snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream * substream)668 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
669 {
670 	return snd_pcm_lib_free_pages(substream);
671 }
672 
673 /* hw_params callback */
snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)674 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
675 				      struct snd_pcm_hw_params *hw_params)
676 {
677 	return snd_pcm_lib_malloc_pages(substream,
678 					params_buffer_bytes(hw_params));
679 }
680 
681 /* hw_free callback */
snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream * substream)682 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
683 {
684 	return snd_pcm_lib_free_pages(substream);
685 }
686 
687 /* prepare playback callback */
snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream * substream)688 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
689 {
690 	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
691 	struct snd_pcm_runtime *runtime = substream->runtime;
692 	struct snd_ca0106_pcm *epcm = runtime->private_data;
693 	int channel = epcm->channel_id;
694 	u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
695 	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
696 	u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
697 	u32 hcfg_set = 0x00000000;
698 	u32 hcfg;
699 	u32 reg40_mask = 0x30000 << (channel<<1);
700 	u32 reg40_set = 0;
701 	u32 reg40;
702 	/* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
703 	u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
704 	u32 reg71_set = 0;
705 	u32 reg71;
706 	int i;
707 
708         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
709         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
710 	//snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
711 	/* Rate can be set per channel. */
712 	/* reg40 control host to fifo */
713 	/* reg71 controls DAC rate. */
714 	switch (runtime->rate) {
715 	case 44100:
716 		reg40_set = 0x10000 << (channel<<1);
717 		reg71_set = 0x01010000;
718 		break;
719         case 48000:
720 		reg40_set = 0;
721 		reg71_set = 0;
722 		break;
723 	case 96000:
724 		reg40_set = 0x20000 << (channel<<1);
725 		reg71_set = 0x02020000;
726 		break;
727 	case 192000:
728 		reg40_set = 0x30000 << (channel<<1);
729 		reg71_set = 0x03030000;
730 		break;
731 	default:
732 		reg40_set = 0;
733 		reg71_set = 0;
734 		break;
735 	}
736 	/* Format is a global setting */
737 	/* FIXME: Only let the first channel accessed set this. */
738 	switch (runtime->format) {
739 	case SNDRV_PCM_FORMAT_S16_LE:
740 		hcfg_set = 0;
741 		break;
742 	case SNDRV_PCM_FORMAT_S32_LE:
743 		hcfg_set = HCFG_PLAYBACK_S32_LE;
744 		break;
745 	default:
746 		hcfg_set = 0;
747 		break;
748 	}
749 	hcfg = inl(emu->port + HCFG) ;
750 	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
751 	outl(hcfg, emu->port + HCFG);
752 	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
753 	reg40 = (reg40 & ~reg40_mask) | reg40_set;
754 	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
755 	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
756 	reg71 = (reg71 & ~reg71_mask) | reg71_set;
757 	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
758 
759 	/* FIXME: Check emu->buffer.size before actually writing to it. */
760         for(i=0; i < runtime->periods; i++) {
761 		table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
762 		table_base[i*2+1] = period_size_bytes << 16;
763 	}
764 
765 	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
766 	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
767 	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
768 	snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
769 	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
770 	/* FIXME  test what 0 bytes does. */
771 	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
772 	snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
773 	snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
774 	snd_ca0106_ptr_write(emu, 0x08, channel, 0);
775         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
776 #if 0
777 	snd_ca0106_ptr_write(emu, SPCS0, 0,
778 			       SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
779 			       SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
780 			       SPCS_GENERATIONSTATUS | 0x00001200 |
781 			       0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
782 #endif
783 
784 	return 0;
785 }
786 
787 /* prepare capture callback */
snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream * substream)788 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
789 {
790 	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
791 	struct snd_pcm_runtime *runtime = substream->runtime;
792 	struct snd_ca0106_pcm *epcm = runtime->private_data;
793 	int channel = epcm->channel_id;
794 	u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
795 	u32 hcfg_set = 0x00000000;
796 	u32 hcfg;
797 	u32 over_sampling=0x2;
798 	u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
799 	u32 reg71_set = 0;
800 	u32 reg71;
801 
802         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
803         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
804 	//snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
805 	/* reg71 controls ADC rate. */
806 	switch (runtime->rate) {
807 	case 44100:
808 		reg71_set = 0x00004000;
809 		break;
810         case 48000:
811 		reg71_set = 0;
812 		break;
813 	case 96000:
814 		reg71_set = 0x00008000;
815 		over_sampling=0xa;
816 		break;
817 	case 192000:
818 		reg71_set = 0x0000c000;
819 		over_sampling=0xa;
820 		break;
821 	default:
822 		reg71_set = 0;
823 		break;
824 	}
825 	/* Format is a global setting */
826 	/* FIXME: Only let the first channel accessed set this. */
827 	switch (runtime->format) {
828 	case SNDRV_PCM_FORMAT_S16_LE:
829 		hcfg_set = 0;
830 		break;
831 	case SNDRV_PCM_FORMAT_S32_LE:
832 		hcfg_set = HCFG_CAPTURE_S32_LE;
833 		break;
834 	default:
835 		hcfg_set = 0;
836 		break;
837 	}
838 	hcfg = inl(emu->port + HCFG) ;
839 	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
840 	outl(hcfg, emu->port + HCFG);
841 	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
842 	reg71 = (reg71 & ~reg71_mask) | reg71_set;
843 	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
844         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
845 	        snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
846 	}
847 
848 
849         //printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size,  frames_to_bytes(runtime, 1));
850 	snd_ca0106_ptr_write(emu, 0x13, channel, 0);
851 	snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
852 	snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
853 	snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
854 
855 	return 0;
856 }
857 
858 /* trigger_playback callback */
snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream * substream,int cmd)859 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
860 				    int cmd)
861 {
862 	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
863 	struct snd_pcm_runtime *runtime;
864 	struct snd_ca0106_pcm *epcm;
865 	int channel;
866 	int result = 0;
867         struct snd_pcm_substream *s;
868 	u32 basic = 0;
869 	u32 extended = 0;
870 	u32 bits;
871 	int running = 0;
872 
873 	switch (cmd) {
874 	case SNDRV_PCM_TRIGGER_START:
875 	case SNDRV_PCM_TRIGGER_RESUME:
876 		running = 1;
877 		break;
878 	case SNDRV_PCM_TRIGGER_STOP:
879 	case SNDRV_PCM_TRIGGER_SUSPEND:
880 	default:
881 		running = 0;
882 		break;
883 	}
884         snd_pcm_group_for_each_entry(s, substream) {
885 		if (snd_pcm_substream_chip(s) != emu ||
886 		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
887 			continue;
888 		runtime = s->runtime;
889 		epcm = runtime->private_data;
890 		channel = epcm->channel_id;
891 		/* snd_printk("channel=%d\n",channel); */
892 		epcm->running = running;
893 		basic |= (0x1 << channel);
894 		extended |= (0x10 << channel);
895                 snd_pcm_trigger_done(s, substream);
896         }
897 	/* snd_printk("basic=0x%x, extended=0x%x\n",basic, extended); */
898 
899 	switch (cmd) {
900 	case SNDRV_PCM_TRIGGER_START:
901 	case SNDRV_PCM_TRIGGER_RESUME:
902 		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
903 		bits |= extended;
904 		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
905 		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
906 		bits |= basic;
907 		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
908 		break;
909 	case SNDRV_PCM_TRIGGER_STOP:
910 	case SNDRV_PCM_TRIGGER_SUSPEND:
911 		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
912 		bits &= ~basic;
913 		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
914 		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
915 		bits &= ~extended;
916 		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
917 		break;
918 	default:
919 		result = -EINVAL;
920 		break;
921 	}
922 	return result;
923 }
924 
925 /* trigger_capture callback */
snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream * substream,int cmd)926 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
927 				    int cmd)
928 {
929 	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
930 	struct snd_pcm_runtime *runtime = substream->runtime;
931 	struct snd_ca0106_pcm *epcm = runtime->private_data;
932 	int channel = epcm->channel_id;
933 	int result = 0;
934 
935 	switch (cmd) {
936 	case SNDRV_PCM_TRIGGER_START:
937 		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
938 		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
939 		epcm->running = 1;
940 		break;
941 	case SNDRV_PCM_TRIGGER_STOP:
942 		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
943 		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
944 		epcm->running = 0;
945 		break;
946 	default:
947 		result = -EINVAL;
948 		break;
949 	}
950 	return result;
951 }
952 
953 /* pointer_playback callback */
954 static snd_pcm_uframes_t
snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream * substream)955 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
956 {
957 	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
958 	struct snd_pcm_runtime *runtime = substream->runtime;
959 	struct snd_ca0106_pcm *epcm = runtime->private_data;
960 	snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
961 	int channel = epcm->channel_id;
962 
963 	if (!epcm->running)
964 		return 0;
965 
966 	ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
967 	ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
968 	ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
969 	if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
970 	ptr2 = bytes_to_frames(runtime, ptr1);
971 	ptr2+= (ptr4 >> 3) * runtime->period_size;
972 	ptr=ptr2;
973         if (ptr >= runtime->buffer_size)
974 		ptr -= runtime->buffer_size;
975 	//printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
976 
977 	return ptr;
978 }
979 
980 /* pointer_capture callback */
981 static snd_pcm_uframes_t
snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream * substream)982 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
983 {
984 	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
985 	struct snd_pcm_runtime *runtime = substream->runtime;
986 	struct snd_ca0106_pcm *epcm = runtime->private_data;
987 	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
988 	int channel = channel=epcm->channel_id;
989 
990 	if (!epcm->running)
991 		return 0;
992 
993 	ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
994 	ptr2 = bytes_to_frames(runtime, ptr1);
995 	ptr=ptr2;
996         if (ptr >= runtime->buffer_size)
997 		ptr -= runtime->buffer_size;
998 	//printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
999 
1000 	return ptr;
1001 }
1002 
1003 /* operators */
1004 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1005 	.open =        snd_ca0106_pcm_open_playback_front,
1006 	.close =       snd_ca0106_pcm_close_playback,
1007 	.ioctl =       snd_pcm_lib_ioctl,
1008 	.hw_params =   snd_ca0106_pcm_hw_params_playback,
1009 	.hw_free =     snd_ca0106_pcm_hw_free_playback,
1010 	.prepare =     snd_ca0106_pcm_prepare_playback,
1011 	.trigger =     snd_ca0106_pcm_trigger_playback,
1012 	.pointer =     snd_ca0106_pcm_pointer_playback,
1013 };
1014 
1015 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1016 	.open =        snd_ca0106_pcm_open_0_capture,
1017 	.close =       snd_ca0106_pcm_close_capture,
1018 	.ioctl =       snd_pcm_lib_ioctl,
1019 	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1020 	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1021 	.prepare =     snd_ca0106_pcm_prepare_capture,
1022 	.trigger =     snd_ca0106_pcm_trigger_capture,
1023 	.pointer =     snd_ca0106_pcm_pointer_capture,
1024 };
1025 
1026 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1027 	.open =        snd_ca0106_pcm_open_1_capture,
1028 	.close =       snd_ca0106_pcm_close_capture,
1029 	.ioctl =       snd_pcm_lib_ioctl,
1030 	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1031 	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1032 	.prepare =     snd_ca0106_pcm_prepare_capture,
1033 	.trigger =     snd_ca0106_pcm_trigger_capture,
1034 	.pointer =     snd_ca0106_pcm_pointer_capture,
1035 };
1036 
1037 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1038 	.open =        snd_ca0106_pcm_open_2_capture,
1039 	.close =       snd_ca0106_pcm_close_capture,
1040 	.ioctl =       snd_pcm_lib_ioctl,
1041 	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1042 	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1043 	.prepare =     snd_ca0106_pcm_prepare_capture,
1044 	.trigger =     snd_ca0106_pcm_trigger_capture,
1045 	.pointer =     snd_ca0106_pcm_pointer_capture,
1046 };
1047 
1048 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1049 	.open =        snd_ca0106_pcm_open_3_capture,
1050 	.close =       snd_ca0106_pcm_close_capture,
1051 	.ioctl =       snd_pcm_lib_ioctl,
1052 	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1053 	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1054 	.prepare =     snd_ca0106_pcm_prepare_capture,
1055 	.trigger =     snd_ca0106_pcm_trigger_capture,
1056 	.pointer =     snd_ca0106_pcm_pointer_capture,
1057 };
1058 
1059 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1060         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1061         .close =        snd_ca0106_pcm_close_playback,
1062         .ioctl =        snd_pcm_lib_ioctl,
1063         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1064         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1065         .prepare =      snd_ca0106_pcm_prepare_playback,
1066         .trigger =      snd_ca0106_pcm_trigger_playback,
1067         .pointer =      snd_ca0106_pcm_pointer_playback,
1068 };
1069 
1070 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1071         .open =         snd_ca0106_pcm_open_playback_unknown,
1072         .close =        snd_ca0106_pcm_close_playback,
1073         .ioctl =        snd_pcm_lib_ioctl,
1074         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1075         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1076         .prepare =      snd_ca0106_pcm_prepare_playback,
1077         .trigger =      snd_ca0106_pcm_trigger_playback,
1078         .pointer =      snd_ca0106_pcm_pointer_playback,
1079 };
1080 
1081 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1082         .open =         snd_ca0106_pcm_open_playback_rear,
1083         .close =        snd_ca0106_pcm_close_playback,
1084         .ioctl =        snd_pcm_lib_ioctl,
1085         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1086 		.hw_free =      snd_ca0106_pcm_hw_free_playback,
1087         .prepare =      snd_ca0106_pcm_prepare_playback,
1088         .trigger =      snd_ca0106_pcm_trigger_playback,
1089         .pointer =      snd_ca0106_pcm_pointer_playback,
1090 };
1091 
1092 
snd_ca0106_ac97_read(struct snd_ac97 * ac97,unsigned short reg)1093 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1094 					     unsigned short reg)
1095 {
1096 	struct snd_ca0106 *emu = ac97->private_data;
1097 	unsigned long flags;
1098 	unsigned short val;
1099 
1100 	spin_lock_irqsave(&emu->emu_lock, flags);
1101 	outb(reg, emu->port + AC97ADDRESS);
1102 	val = inw(emu->port + AC97DATA);
1103 	spin_unlock_irqrestore(&emu->emu_lock, flags);
1104 	return val;
1105 }
1106 
snd_ca0106_ac97_write(struct snd_ac97 * ac97,unsigned short reg,unsigned short val)1107 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1108 				    unsigned short reg, unsigned short val)
1109 {
1110 	struct snd_ca0106 *emu = ac97->private_data;
1111 	unsigned long flags;
1112 
1113 	spin_lock_irqsave(&emu->emu_lock, flags);
1114 	outb(reg, emu->port + AC97ADDRESS);
1115 	outw(val, emu->port + AC97DATA);
1116 	spin_unlock_irqrestore(&emu->emu_lock, flags);
1117 }
1118 
snd_ca0106_ac97(struct snd_ca0106 * chip)1119 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1120 {
1121 	struct snd_ac97_bus *pbus;
1122 	struct snd_ac97_template ac97;
1123 	int err;
1124 	static struct snd_ac97_bus_ops ops = {
1125 		.write = snd_ca0106_ac97_write,
1126 		.read = snd_ca0106_ac97_read,
1127 	};
1128 
1129 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1130 		return err;
1131 	pbus->no_vra = 1; /* we don't need VRA */
1132 
1133 	memset(&ac97, 0, sizeof(ac97));
1134 	ac97.private_data = chip;
1135 	ac97.scaps = AC97_SCAP_NO_SPDIF;
1136 	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1137 }
1138 
1139 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1140 
snd_ca0106_free(struct snd_ca0106 * chip)1141 static int snd_ca0106_free(struct snd_ca0106 *chip)
1142 {
1143 	if (chip->res_port != NULL) {
1144 		/* avoid access to already used hardware */
1145 		ca0106_stop_chip(chip);
1146 	}
1147 	if (chip->irq >= 0)
1148 		free_irq(chip->irq, chip);
1149 	// release the data
1150 #if 1
1151 	if (chip->buffer.area)
1152 		snd_dma_free_pages(&chip->buffer);
1153 #endif
1154 
1155 	// release the i/o port
1156 	release_and_free_resource(chip->res_port);
1157 
1158 	pci_disable_device(chip->pci);
1159 	kfree(chip);
1160 	return 0;
1161 }
1162 
snd_ca0106_dev_free(struct snd_device * device)1163 static int snd_ca0106_dev_free(struct snd_device *device)
1164 {
1165 	struct snd_ca0106 *chip = device->device_data;
1166 	return snd_ca0106_free(chip);
1167 }
1168 
snd_ca0106_interrupt(int irq,void * dev_id)1169 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1170 {
1171 	unsigned int status;
1172 
1173 	struct snd_ca0106 *chip = dev_id;
1174 	int i;
1175 	int mask;
1176         unsigned int stat76;
1177 	struct snd_ca0106_channel *pchannel;
1178 
1179 	status = inl(chip->port + IPR);
1180 	if (! status)
1181 		return IRQ_NONE;
1182 
1183         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1184 	//snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1185 	//snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1186         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1187 	for(i = 0; i < 4; i++) {
1188 		pchannel = &(chip->playback_channels[i]);
1189 		if (stat76 & mask) {
1190 /* FIXME: Select the correct substream for period elapsed */
1191 			if(pchannel->use) {
1192 				snd_pcm_period_elapsed(pchannel->epcm->substream);
1193 				//printk(KERN_INFO "interrupt [%d] used\n", i);
1194                         }
1195 		}
1196 	        //printk(KERN_INFO "channel=%p\n",pchannel);
1197 	        //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1198 		mask <<= 1;
1199 	}
1200         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1201 	for(i = 0; i < 4; i++) {
1202 		pchannel = &(chip->capture_channels[i]);
1203 		if (stat76 & mask) {
1204 /* FIXME: Select the correct substream for period elapsed */
1205 			if(pchannel->use) {
1206 				snd_pcm_period_elapsed(pchannel->epcm->substream);
1207 				//printk(KERN_INFO "interrupt [%d] used\n", i);
1208                         }
1209 		}
1210 	        //printk(KERN_INFO "channel=%p\n",pchannel);
1211 	        //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1212 		mask <<= 1;
1213 	}
1214 
1215         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1216 
1217 	if (chip->midi.dev_id &&
1218 	    (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1219 		if (chip->midi.interrupt)
1220 			chip->midi.interrupt(&chip->midi, status);
1221 		else
1222 			chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1223 	}
1224 
1225 	// acknowledge the interrupt if necessary
1226 	outl(status, chip->port+IPR);
1227 
1228 	return IRQ_HANDLED;
1229 }
1230 
snd_ca0106_pcm(struct snd_ca0106 * emu,int device)1231 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1232 {
1233 	struct snd_pcm *pcm;
1234 	struct snd_pcm_substream *substream;
1235 	int err;
1236 
1237 	err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1238 	if (err < 0)
1239 		return err;
1240 
1241 	pcm->private_data = emu;
1242 
1243 	switch (device) {
1244 	case 0:
1245 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1246 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1247           break;
1248 	case 1:
1249 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1250 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1251           break;
1252 	case 2:
1253 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1254 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1255           break;
1256 	case 3:
1257 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1258 	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1259           break;
1260         }
1261 
1262 	pcm->info_flags = 0;
1263 	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1264 	strcpy(pcm->name, "CA0106");
1265 
1266 	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1267 	    substream;
1268 	    substream = substream->next) {
1269 		if ((err = snd_pcm_lib_preallocate_pages(substream,
1270 							 SNDRV_DMA_TYPE_DEV,
1271 							 snd_dma_pci_data(emu->pci),
1272 							 64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1273 			return err;
1274 	}
1275 
1276 	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1277 	      substream;
1278 	      substream = substream->next) {
1279  		if ((err = snd_pcm_lib_preallocate_pages(substream,
1280 	                                           SNDRV_DMA_TYPE_DEV,
1281 	                                           snd_dma_pci_data(emu->pci),
1282 	                                           64*1024, 64*1024)) < 0)
1283 			return err;
1284 	}
1285 
1286 	emu->pcm[device] = pcm;
1287 
1288 	return 0;
1289 }
1290 
1291 #define SPI_REG(reg, value)	(((reg) << SPI_REG_SHIFT) | (value))
1292 static unsigned int spi_dac_init[] = {
1293 	SPI_REG(SPI_LDA1_REG,	SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1294 	SPI_REG(SPI_RDA1_REG,	SPI_DA_BIT_0dB),
1295 	SPI_REG(SPI_PL_REG,	SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1296 	SPI_REG(SPI_FMT_REG,	SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1297 	SPI_REG(SPI_LDA2_REG,	SPI_DA_BIT_0dB),
1298 	SPI_REG(SPI_RDA2_REG,	SPI_DA_BIT_0dB),
1299 	SPI_REG(SPI_LDA3_REG,	SPI_DA_BIT_0dB),
1300 	SPI_REG(SPI_RDA3_REG,	SPI_DA_BIT_0dB),
1301 	SPI_REG(SPI_MASTDA_REG,	SPI_DA_BIT_0dB),
1302 	SPI_REG(9,		0x00),
1303 	SPI_REG(SPI_MS_REG,	SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1304 	SPI_REG(12,		0x00),
1305 	SPI_REG(SPI_LDA4_REG,	SPI_DA_BIT_0dB),
1306 	SPI_REG(SPI_RDA4_REG,	SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1307 	SPI_REG(SPI_DACD4_REG,	0x00),
1308 };
1309 
1310 static unsigned int i2c_adc_init[][2] = {
1311 	{ 0x17, 0x00 }, /* Reset */
1312 	{ 0x07, 0x00 }, /* Timeout */
1313 	{ 0x0b, 0x22 },  /* Interface control */
1314 	{ 0x0c, 0x22 },  /* Master mode control */
1315 	{ 0x0d, 0x08 },  /* Powerdown control */
1316 	{ 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1317 	{ 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1318 	{ 0x10, 0x7b },  /* ALC Control 1 */
1319 	{ 0x11, 0x00 },  /* ALC Control 2 */
1320 	{ 0x12, 0x32 },  /* ALC Control 3 */
1321 	{ 0x13, 0x00 },  /* Noise gate control */
1322 	{ 0x14, 0xa6 },  /* Limiter control */
1323 	{ 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1324 };
1325 
ca0106_init_chip(struct snd_ca0106 * chip,int resume)1326 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1327 {
1328 	int ch;
1329 	unsigned int def_bits;
1330 
1331 	outl(0, chip->port + INTE);
1332 
1333 	/*
1334 	 *  Init to 0x02109204 :
1335 	 *  Clock accuracy    = 0     (1000ppm)
1336 	 *  Sample Rate       = 2     (48kHz)
1337 	 *  Audio Channel     = 1     (Left of 2)
1338 	 *  Source Number     = 0     (Unspecified)
1339 	 *  Generation Status = 1     (Original for Cat Code 12)
1340 	 *  Cat Code          = 12    (Digital Signal Mixer)
1341 	 *  Mode              = 0     (Mode 0)
1342 	 *  Emphasis          = 0     (None)
1343 	 *  CP                = 1     (Copyright unasserted)
1344 	 *  AN                = 0     (Audio data)
1345 	 *  P                 = 0     (Consumer)
1346 	 */
1347 	def_bits =
1348 		SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1349 		SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1350 		SPCS_GENERATIONSTATUS | 0x00001200 |
1351 		0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1352 	if (!resume) {
1353 		chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1354 		chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1355 		chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1356 		chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1357 	}
1358 	/* Only SPCS1 has been tested */
1359 	snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1360 	snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1361 	snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1362 	snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1363 
1364         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1365         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1366 
1367         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1368         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1369         outw(0x8000, chip->port + AC97DATA);
1370 #if 0 /* FIXME: what are these? */
1371 	snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1372 	snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1373 	snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1374 	snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1375 #endif
1376 
1377 	/* OSS drivers set this. */
1378 	/* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1379 
1380 	/* Analog or Digital output */
1381 	snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1382 	/* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1383 	 * Use 0x000f0000 for surround71
1384 	 */
1385 	snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1386 
1387 	chip->spdif_enable = 0; /* Set digital SPDIF output off */
1388 	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1389 	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1390 
1391 	/* goes to 0x40c80000 when doing SPDIF IN/OUT */
1392 	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1393 	/* (Mute) CAPTURE feedback into PLAYBACK volume.
1394 	 * Only lower 16 bits matter.
1395 	 */
1396 	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1397 	/* SPDIF IN Volume */
1398 	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1399 	/* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1400 	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1401 
1402 	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1403 	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1404 	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1405 	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1406 
1407 	for (ch = 0; ch < 4; ch++) {
1408 		/* Only high 16 bits matter */
1409 		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1410 		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1411 #if 0 /* Mute */
1412 		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1413 		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1414 		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1415 		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1416 #endif
1417 	}
1418 	if (chip->details->i2c_adc == 1) {
1419 	        /* Select MIC, Line in, TAD in, AUX in */
1420 	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1421 		/* Default to CAPTURE_SOURCE to i2s in */
1422 		if (!resume)
1423 			chip->capture_source = 3;
1424 	} else if (chip->details->ac97 == 1) {
1425 	        /* Default to AC97 in */
1426 	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1427 		/* Default to CAPTURE_SOURCE to AC97 in */
1428 		if (!resume)
1429 			chip->capture_source = 4;
1430 	} else {
1431 	        /* Select MIC, Line in, TAD in, AUX in */
1432 	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1433 		/* Default to Set CAPTURE_SOURCE to i2s in */
1434 		if (!resume)
1435 			chip->capture_source = 3;
1436 	}
1437 
1438 	if (chip->details->gpio_type == 2) {
1439 		/* The SB0438 use GPIO differently. */
1440 		/* FIXME: Still need to find out what the other GPIO bits do.
1441 		 * E.g. For digital spdif out.
1442 		 */
1443 		outl(0x0, chip->port+GPIO);
1444 		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1445 		outl(0x005f5301, chip->port+GPIO); /* Analog */
1446 	} else if (chip->details->gpio_type == 1) {
1447 		/* The SB0410 and SB0413 use GPIO differently. */
1448 		/* FIXME: Still need to find out what the other GPIO bits do.
1449 		 * E.g. For digital spdif out.
1450 		 */
1451 		outl(0x0, chip->port+GPIO);
1452 		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1453 		outl(0x005f5301, chip->port+GPIO); /* Analog */
1454 	} else {
1455 		outl(0x0, chip->port+GPIO);
1456 		outl(0x005f03a3, chip->port+GPIO); /* Analog */
1457 		/* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1458 	}
1459 	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1460 
1461 	/* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1462 	/* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1463 	/* outl(0x00001409, chip->port+HCFG); */
1464 	/* outl(0x00000009, chip->port+HCFG); */
1465 	/* AC97 2.0, Enable outputs. */
1466 	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1467 
1468 	if (chip->details->i2c_adc == 1) {
1469 		/* The SB0410 and SB0413 use I2C to control ADC. */
1470 		int size, n;
1471 
1472 		size = ARRAY_SIZE(i2c_adc_init);
1473 		/* snd_printk("I2C:array size=0x%x\n", size); */
1474 		for (n = 0; n < size; n++)
1475 			snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1476 					     i2c_adc_init[n][1]);
1477 		for (n = 0; n < 4; n++) {
1478 			chip->i2c_capture_volume[n][0] = 0xcf;
1479 			chip->i2c_capture_volume[n][1] = 0xcf;
1480 		}
1481 		chip->i2c_capture_source = 2; /* Line in */
1482 		/* Enable Line-in capture. MIC in currently untested. */
1483 		/* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1484 	}
1485 
1486 	if (chip->details->spi_dac == 1) {
1487 		/* The SB0570 use SPI to control DAC. */
1488 		int size, n;
1489 
1490 		size = ARRAY_SIZE(spi_dac_init);
1491 		for (n = 0; n < size; n++) {
1492 			int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1493 
1494 			snd_ca0106_spi_write(chip, spi_dac_init[n]);
1495 			if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1496 				chip->spi_dac_reg[reg] = spi_dac_init[n];
1497 		}
1498 	}
1499 }
1500 
ca0106_stop_chip(struct snd_ca0106 * chip)1501 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1502 {
1503 	/* disable interrupts */
1504 	snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1505 	outl(0, chip->port + INTE);
1506 	snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1507 	udelay(1000);
1508 	/* disable audio */
1509 	/* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1510 	outl(0, chip->port + HCFG);
1511 	/* FIXME: We need to stop and DMA transfers here.
1512 	 *        But as I am not sure how yet, we cannot from the dma pages.
1513 	 * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1514 	 */
1515 }
1516 
snd_ca0106_create(int dev,struct snd_card * card,struct pci_dev * pci,struct snd_ca0106 ** rchip)1517 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1518 					 struct pci_dev *pci,
1519 					 struct snd_ca0106 **rchip)
1520 {
1521 	struct snd_ca0106 *chip;
1522 	struct snd_ca0106_details *c;
1523 	int err;
1524 	static struct snd_device_ops ops = {
1525 		.dev_free = snd_ca0106_dev_free,
1526 	};
1527 
1528 	*rchip = NULL;
1529 
1530 	err = pci_enable_device(pci);
1531 	if (err < 0)
1532 		return err;
1533 	if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1534 	    pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1535 		printk(KERN_ERR "error to set 32bit mask DMA\n");
1536 		pci_disable_device(pci);
1537 		return -ENXIO;
1538 	}
1539 
1540 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1541 	if (chip == NULL) {
1542 		pci_disable_device(pci);
1543 		return -ENOMEM;
1544 	}
1545 
1546 	chip->card = card;
1547 	chip->pci = pci;
1548 	chip->irq = -1;
1549 
1550 	spin_lock_init(&chip->emu_lock);
1551 
1552 	chip->port = pci_resource_start(pci, 0);
1553 	chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1554 	if (!chip->res_port) {
1555 		snd_ca0106_free(chip);
1556 		printk(KERN_ERR "cannot allocate the port\n");
1557 		return -EBUSY;
1558 	}
1559 
1560 	if (request_irq(pci->irq, snd_ca0106_interrupt,
1561 			IRQF_SHARED, "snd_ca0106", chip)) {
1562 		snd_ca0106_free(chip);
1563 		printk(KERN_ERR "cannot grab irq\n");
1564 		return -EBUSY;
1565 	}
1566 	chip->irq = pci->irq;
1567 
1568 	/* This stores the periods table. */
1569 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1570 				1024, &chip->buffer) < 0) {
1571 		snd_ca0106_free(chip);
1572 		return -ENOMEM;
1573 	}
1574 
1575 	pci_set_master(pci);
1576 	/* read serial */
1577 	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1578 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1579 	printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1580 	       chip->model, pci->revision, chip->serial);
1581 	strcpy(card->driver, "CA0106");
1582 	strcpy(card->shortname, "CA0106");
1583 
1584 	for (c = ca0106_chip_details; c->serial; c++) {
1585 		if (subsystem[dev]) {
1586 			if (c->serial == subsystem[dev])
1587 				break;
1588 		} else if (c->serial == chip->serial)
1589 			break;
1590 	}
1591 	chip->details = c;
1592 	if (subsystem[dev]) {
1593 		printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1594 		       "subsystem=0x%x. Forced to subsystem=0x%x\n",
1595 		       c->name, chip->serial, subsystem[dev]);
1596 	}
1597 
1598 	sprintf(card->longname, "%s at 0x%lx irq %i",
1599 		c->name, chip->port, chip->irq);
1600 
1601 	ca0106_init_chip(chip, 0);
1602 
1603 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1604 	if (err < 0) {
1605 		snd_ca0106_free(chip);
1606 		return err;
1607 	}
1608 	*rchip = chip;
1609 	return 0;
1610 }
1611 
1612 
ca0106_midi_interrupt_enable(struct snd_ca_midi * midi,int intr)1613 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1614 {
1615 	snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1616 }
1617 
ca0106_midi_interrupt_disable(struct snd_ca_midi * midi,int intr)1618 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1619 {
1620 	snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1621 }
1622 
ca0106_midi_read(struct snd_ca_midi * midi,int idx)1623 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1624 {
1625 	return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1626 						  midi->port + idx, 0);
1627 }
1628 
ca0106_midi_write(struct snd_ca_midi * midi,int data,int idx)1629 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1630 {
1631 	snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1632 }
1633 
ca0106_dev_id_card(void * dev_id)1634 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1635 {
1636 	return ((struct snd_ca0106 *)dev_id)->card;
1637 }
1638 
ca0106_dev_id_port(void * dev_id)1639 static int ca0106_dev_id_port(void *dev_id)
1640 {
1641 	return ((struct snd_ca0106 *)dev_id)->port;
1642 }
1643 
snd_ca0106_midi(struct snd_ca0106 * chip,unsigned int channel)1644 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1645 {
1646 	struct snd_ca_midi *midi;
1647 	char *name;
1648 	int err;
1649 
1650 	if (channel == CA0106_MIDI_CHAN_B) {
1651 		name = "CA0106 MPU-401 (UART) B";
1652 		midi =  &chip->midi2;
1653 		midi->tx_enable = INTE_MIDI_TX_B;
1654 		midi->rx_enable = INTE_MIDI_RX_B;
1655 		midi->ipr_tx = IPR_MIDI_TX_B;
1656 		midi->ipr_rx = IPR_MIDI_RX_B;
1657 		midi->port = MIDI_UART_B_DATA;
1658 	} else {
1659 		name = "CA0106 MPU-401 (UART)";
1660 		midi =  &chip->midi;
1661 		midi->tx_enable = INTE_MIDI_TX_A;
1662 		midi->rx_enable = INTE_MIDI_TX_B;
1663 		midi->ipr_tx = IPR_MIDI_TX_A;
1664 		midi->ipr_rx = IPR_MIDI_RX_A;
1665 		midi->port = MIDI_UART_A_DATA;
1666 	}
1667 
1668 	midi->reset = CA0106_MPU401_RESET;
1669 	midi->enter_uart = CA0106_MPU401_ENTER_UART;
1670 	midi->ack = CA0106_MPU401_ACK;
1671 
1672 	midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1673 	midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1674 
1675 	midi->channel = channel;
1676 
1677 	midi->interrupt_enable = ca0106_midi_interrupt_enable;
1678 	midi->interrupt_disable = ca0106_midi_interrupt_disable;
1679 
1680 	midi->read = ca0106_midi_read;
1681 	midi->write = ca0106_midi_write;
1682 
1683 	midi->get_dev_id_card = ca0106_dev_id_card;
1684 	midi->get_dev_id_port = ca0106_dev_id_port;
1685 
1686 	midi->dev_id = chip;
1687 
1688 	if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1689 		return err;
1690 
1691 	return 0;
1692 }
1693 
1694 
snd_ca0106_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)1695 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1696 					const struct pci_device_id *pci_id)
1697 {
1698 	static int dev;
1699 	struct snd_card *card;
1700 	struct snd_ca0106 *chip;
1701 	int i, err;
1702 
1703 	if (dev >= SNDRV_CARDS)
1704 		return -ENODEV;
1705 	if (!enable[dev]) {
1706 		dev++;
1707 		return -ENOENT;
1708 	}
1709 
1710 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1711 	if (card == NULL)
1712 		return -ENOMEM;
1713 
1714 	err = snd_ca0106_create(dev, card, pci, &chip);
1715 	if (err < 0)
1716 		goto error;
1717 	card->private_data = chip;
1718 
1719 	for (i = 0; i < 4; i++) {
1720 		err = snd_ca0106_pcm(chip, i);
1721 		if (err < 0)
1722 			goto error;
1723 	}
1724 
1725 	if (chip->details->ac97 == 1) {
1726 		/* The SB0410 and SB0413 do not have an AC97 chip. */
1727 		err = snd_ca0106_ac97(chip);
1728 		if (err < 0)
1729 			goto error;
1730 	}
1731 	err = snd_ca0106_mixer(chip);
1732 	if (err < 0)
1733 		goto error;
1734 
1735 	snd_printdd("ca0106: probe for MIDI channel A ...");
1736 	err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1737 	if (err < 0)
1738 		goto error;
1739 	snd_printdd(" done.\n");
1740 
1741 #ifdef CONFIG_PROC_FS
1742 	snd_ca0106_proc_init(chip);
1743 #endif
1744 
1745 	snd_card_set_dev(card, &pci->dev);
1746 
1747 	err = snd_card_register(card);
1748 	if (err < 0)
1749 		goto error;
1750 
1751 	pci_set_drvdata(pci, card);
1752 	dev++;
1753 	return 0;
1754 
1755  error:
1756 	snd_card_free(card);
1757 	return err;
1758 }
1759 
snd_ca0106_remove(struct pci_dev * pci)1760 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1761 {
1762 	snd_card_free(pci_get_drvdata(pci));
1763 	pci_set_drvdata(pci, NULL);
1764 }
1765 
1766 #ifdef CONFIG_PM
snd_ca0106_suspend(struct pci_dev * pci,pm_message_t state)1767 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1768 {
1769 	struct snd_card *card = pci_get_drvdata(pci);
1770 	struct snd_ca0106 *chip = card->private_data;
1771 	int i;
1772 
1773 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1774 	for (i = 0; i < 4; i++)
1775 		snd_pcm_suspend_all(chip->pcm[i]);
1776 	if (chip->details->ac97)
1777 		snd_ac97_suspend(chip->ac97);
1778 	snd_ca0106_mixer_suspend(chip);
1779 
1780 	ca0106_stop_chip(chip);
1781 
1782 	pci_disable_device(pci);
1783 	pci_save_state(pci);
1784 	pci_set_power_state(pci, pci_choose_state(pci, state));
1785 	return 0;
1786 }
1787 
snd_ca0106_resume(struct pci_dev * pci)1788 static int snd_ca0106_resume(struct pci_dev *pci)
1789 {
1790 	struct snd_card *card = pci_get_drvdata(pci);
1791 	struct snd_ca0106 *chip = card->private_data;
1792 	int i;
1793 
1794 	pci_set_power_state(pci, PCI_D0);
1795 	pci_restore_state(pci);
1796 
1797 	if (pci_enable_device(pci) < 0) {
1798 		snd_card_disconnect(card);
1799 		return -EIO;
1800 	}
1801 
1802 	pci_set_master(pci);
1803 
1804 	ca0106_init_chip(chip, 1);
1805 
1806 	if (chip->details->ac97)
1807 		snd_ac97_resume(chip->ac97);
1808 	snd_ca0106_mixer_resume(chip);
1809 	if (chip->details->spi_dac) {
1810 		for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1811 			snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1812 	}
1813 
1814 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1815 	return 0;
1816 }
1817 #endif
1818 
1819 // PCI IDs
1820 static struct pci_device_id snd_ca0106_ids[] = {
1821 	{ 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },	/* Audigy LS or Live 24bit */
1822 	{ 0, }
1823 };
1824 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1825 
1826 // pci_driver definition
1827 static struct pci_driver driver = {
1828 	.name = "CA0106",
1829 	.id_table = snd_ca0106_ids,
1830 	.probe = snd_ca0106_probe,
1831 	.remove = __devexit_p(snd_ca0106_remove),
1832 #ifdef CONFIG_PM
1833 	.suspend = snd_ca0106_suspend,
1834 	.resume = snd_ca0106_resume,
1835 #endif
1836 };
1837 
1838 // initialization of the module
alsa_card_ca0106_init(void)1839 static int __init alsa_card_ca0106_init(void)
1840 {
1841 	return pci_register_driver(&driver);
1842 }
1843 
1844 // clean up the module
alsa_card_ca0106_exit(void)1845 static void __exit alsa_card_ca0106_exit(void)
1846 {
1847 	pci_unregister_driver(&driver);
1848 }
1849 
1850 module_init(alsa_card_ca0106_init)
1851 module_exit(alsa_card_ca0106_exit)
1852