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