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