xref: /openbmc/linux/sound/pci/emu10k1/p16v.c (revision db181ce0)
1 /*
2  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
3  *  Driver p16v chips
4  *  Version: 0.25
5  *
6  *  FEATURES currently supported:
7  *    Output fixed at S32_LE, 2 channel to hw:0,0
8  *    Rates: 44.1, 48, 96, 192.
9  *
10  *  Changelog:
11  *  0.8
12  *    Use separate card based buffer for periods table.
13  *  0.9
14  *    Use 2 channel output streams instead of 8 channel.
15  *       (8 channel output streams might be good for ASIO type output)
16  *    Corrected speaker output, so Front -> Front etc.
17  *  0.10
18  *    Fixed missed interrupts.
19  *  0.11
20  *    Add Sound card model number and names.
21  *    Add Analog volume controls.
22  *  0.12
23  *    Corrected playback interrupts. Now interrupt per period, instead of half period.
24  *  0.13
25  *    Use single trigger for multichannel.
26  *  0.14
27  *    Mic capture now works at fixed: S32_LE, 96000Hz, Stereo.
28  *  0.15
29  *    Force buffer_size / period_size == INTEGER.
30  *  0.16
31  *    Update p16v.c to work with changed alsa api.
32  *  0.17
33  *    Update p16v.c to work with changed alsa api. Removed boot_devs.
34  *  0.18
35  *    Merging with snd-emu10k1 driver.
36  *  0.19
37  *    One stereo channel at 24bit now works.
38  *  0.20
39  *    Added better register defines.
40  *  0.21
41  *    Integrated with snd-emu10k1 driver.
42  *  0.22
43  *    Removed #if 0 ... #endif
44  *  0.23
45  *    Implement different capture rates.
46  *  0.24
47  *    Implement different capture source channels.
48  *    e.g. When HD Capture source is set to SPDIF,
49  *    setting HD Capture channel to 0 captures from CDROM digital input.
50  *    setting HD Capture channel to 1 captures from SPDIF in.
51  *  0.25
52  *    Include capture buffer sizes.
53  *
54  *  BUGS:
55  *    Some stability problems when unloading the snd-p16v kernel module.
56  *    --
57  *
58  *  TODO:
59  *    SPDIF out.
60  *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
61  *    Currently capture fixed at 48000Hz.
62  *
63  *    --
64  *  GENERAL INFO:
65  *    Model: SB0240
66  *    P16V Chip: CA0151-DBS
67  *    Audigy 2 Chip: CA0102-IAT
68  *    AC97 Codec: STAC 9721
69  *    ADC: Philips 1361T (Stereo 24bit)
70  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
71  *
72  *  This code was initially based on code from ALSA's emu10k1x.c which is:
73  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
74  *
75  *   This program is free software; you can redistribute it and/or modify
76  *   it under the terms of the GNU General Public License as published by
77  *   the Free Software Foundation; either version 2 of the License, or
78  *   (at your option) any later version.
79  *
80  *   This program is distributed in the hope that it will be useful,
81  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
82  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
83  *   GNU General Public License for more details.
84  *
85  *   You should have received a copy of the GNU General Public License
86  *   along with this program; if not, write to the Free Software
87  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
88  *
89  */
90 #include <linux/delay.h>
91 #include <linux/init.h>
92 #include <linux/interrupt.h>
93 #include <linux/pci.h>
94 #include <linux/slab.h>
95 #include <linux/vmalloc.h>
96 #include <linux/moduleparam.h>
97 #include <sound/core.h>
98 #include <sound/initval.h>
99 #include <sound/pcm.h>
100 #include <sound/ac97_codec.h>
101 #include <sound/info.h>
102 #include <sound/tlv.h>
103 #include <sound/emu10k1.h>
104 #include "p16v.h"
105 
106 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
107 #define PCM_FRONT_CHANNEL 0
108 #define PCM_REAR_CHANNEL 1
109 #define PCM_CENTER_LFE_CHANNEL 2
110 #define PCM_SIDE_CHANNEL 3
111 #define CONTROL_FRONT_CHANNEL 0
112 #define CONTROL_REAR_CHANNEL 3
113 #define CONTROL_CENTER_LFE_CHANNEL 1
114 #define CONTROL_SIDE_CHANNEL 2
115 
116 /* Card IDs:
117  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
118  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
119  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
120  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
121  *
122  */
123 
124  /* hardware definition */
125 static struct snd_pcm_hardware snd_p16v_playback_hw = {
126 	.info =			SNDRV_PCM_INFO_MMAP |
127 				SNDRV_PCM_INFO_INTERLEAVED |
128 				SNDRV_PCM_INFO_BLOCK_TRANSFER |
129 				SNDRV_PCM_INFO_RESUME |
130 				SNDRV_PCM_INFO_MMAP_VALID |
131 				SNDRV_PCM_INFO_SYNC_START,
132 	.formats =		SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
133 	.rates =		SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
134 	.rate_min =		44100,
135 	.rate_max =		192000,
136 	.channels_min =		8,
137 	.channels_max =		8,
138 	.buffer_bytes_max =	((65536 - 64) * 8),
139 	.period_bytes_min =	64,
140 	.period_bytes_max =	(65536 - 64),
141 	.periods_min =		2,
142 	.periods_max =		8,
143 	.fifo_size =		0,
144 };
145 
146 static struct snd_pcm_hardware snd_p16v_capture_hw = {
147 	.info =			(SNDRV_PCM_INFO_MMAP |
148 				 SNDRV_PCM_INFO_INTERLEAVED |
149 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
150 				 SNDRV_PCM_INFO_RESUME |
151 				 SNDRV_PCM_INFO_MMAP_VALID),
152 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
153 	.rates =		SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
154 	.rate_min =		44100,
155 	.rate_max =		192000,
156 	.channels_min =		2,
157 	.channels_max =		2,
158 	.buffer_bytes_max =	(65536 - 64),
159 	.period_bytes_min =	64,
160 	.period_bytes_max =	(65536 - 128) >> 1,  /* size has to be N*64 bytes */
161 	.periods_min =		2,
162 	.periods_max =		2,
163 	.fifo_size =		0,
164 };
165 
166 static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
167 {
168 	struct snd_emu10k1_pcm *epcm = runtime->private_data;
169 
170 	if (epcm) {
171 		/* dev_dbg(emu->card->dev, "epcm free: %p\n", epcm); */
172 		kfree(epcm);
173 	}
174 }
175 
176 /* open_playback callback */
177 static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
178 {
179 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
180         struct snd_emu10k1_voice *channel = &(emu->p16v_voices[channel_id]);
181 	struct snd_emu10k1_pcm *epcm;
182 	struct snd_pcm_runtime *runtime = substream->runtime;
183 	int err;
184 
185 	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
186 	/* dev_dbg(emu->card->dev, "epcm kcalloc: %p\n", epcm); */
187 
188 	if (epcm == NULL)
189 		return -ENOMEM;
190 	epcm->emu = emu;
191 	epcm->substream = substream;
192 	/*
193 	dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
194 		   substream->pcm->device, channel_id);
195 	*/
196 	runtime->private_data = epcm;
197 	runtime->private_free = snd_p16v_pcm_free_substream;
198 
199 	runtime->hw = snd_p16v_playback_hw;
200 
201         channel->emu = emu;
202         channel->number = channel_id;
203 
204         channel->use=1;
205 #if 0 /* debug */
206 	dev_dbg(emu->card->dev,
207 		   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
208 		   channel_id, channel, channel->use);
209 	dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
210 	       channel_id, chip, channel);
211 #endif /* debug */
212 	/* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
213 	channel->epcm = epcm;
214 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
215                 return err;
216 
217 	runtime->sync.id32[0] = substream->pcm->card->number;
218 	runtime->sync.id32[1] = 'P';
219 	runtime->sync.id32[2] = 16;
220 	runtime->sync.id32[3] = 'V';
221 
222 	return 0;
223 }
224 /* open_capture callback */
225 static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
226 {
227 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
228 	struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
229 	struct snd_emu10k1_pcm *epcm;
230 	struct snd_pcm_runtime *runtime = substream->runtime;
231 	int err;
232 
233 	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
234 	/* dev_dbg(emu->card->dev, "epcm kcalloc: %p\n", epcm); */
235 
236 	if (epcm == NULL)
237 		return -ENOMEM;
238 	epcm->emu = emu;
239 	epcm->substream = substream;
240 	/*
241 	dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
242 		   substream->pcm->device, channel_id);
243 	*/
244 	runtime->private_data = epcm;
245 	runtime->private_free = snd_p16v_pcm_free_substream;
246 
247 	runtime->hw = snd_p16v_capture_hw;
248 
249 	channel->emu = emu;
250 	channel->number = channel_id;
251 
252 	channel->use=1;
253 #if 0 /* debug */
254 	dev_dbg(emu->card->dev,
255 		   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
256 		   channel_id, channel, channel->use);
257 	dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
258 	       channel_id, chip, channel);
259 #endif /* debug */
260 	/* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
261 	channel->epcm = epcm;
262 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
263 		return err;
264 
265 	return 0;
266 }
267 
268 
269 /* close callback */
270 static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
271 {
272 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
273 	//struct snd_pcm_runtime *runtime = substream->runtime;
274 	//struct snd_emu10k1_pcm *epcm = runtime->private_data;
275 	emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use = 0;
276 	/* FIXME: maybe zero others */
277 	return 0;
278 }
279 
280 /* close callback */
281 static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
282 {
283 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
284 	//struct snd_pcm_runtime *runtime = substream->runtime;
285 	//struct snd_emu10k1_pcm *epcm = runtime->private_data;
286 	emu->p16v_capture_voice.use = 0;
287 	/* FIXME: maybe zero others */
288 	return 0;
289 }
290 
291 static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
292 {
293 	return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
294 }
295 
296 static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
297 {
298 	// Only using channel 0 for now, but the card has 2 channels.
299 	return snd_p16v_pcm_open_capture_channel(substream, 0);
300 }
301 
302 /* hw_params callback */
303 static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
304 				      struct snd_pcm_hw_params *hw_params)
305 {
306 	int result;
307 	result = snd_pcm_lib_malloc_pages(substream,
308 					params_buffer_bytes(hw_params));
309 	return result;
310 }
311 
312 /* hw_params callback */
313 static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
314 				      struct snd_pcm_hw_params *hw_params)
315 {
316 	int result;
317 	result = snd_pcm_lib_malloc_pages(substream,
318 					params_buffer_bytes(hw_params));
319 	return result;
320 }
321 
322 
323 /* hw_free callback */
324 static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
325 {
326 	int result;
327 	result = snd_pcm_lib_free_pages(substream);
328 	return result;
329 }
330 
331 /* hw_free callback */
332 static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
333 {
334 	int result;
335 	result = snd_pcm_lib_free_pages(substream);
336 	return result;
337 }
338 
339 
340 /* prepare playback callback */
341 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
342 {
343 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
344 	struct snd_pcm_runtime *runtime = substream->runtime;
345 	int channel = substream->pcm->device - emu->p16v_device_offset;
346 	u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
347 	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
348 	int i;
349 	u32 tmp;
350 
351 #if 0 /* debug */
352 	dev_dbg(emu->card->dev,
353 		"prepare:channel_number=%d, rate=%d, "
354 		   "format=0x%x, channels=%d, buffer_size=%ld, "
355 		   "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
356 		   channel, runtime->rate, runtime->format, runtime->channels,
357 		   runtime->buffer_size, runtime->period_size,
358 		   runtime->periods, frames_to_bytes(runtime, 1));
359 	dev_dbg(emu->card->dev,
360 		"dma_addr=%x, dma_area=%p, table_base=%p\n",
361 		   runtime->dma_addr, runtime->dma_area, table_base);
362 	dev_dbg(emu->card->dev,
363 		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
364 		   emu->p16v_buffer.addr, emu->p16v_buffer.area,
365 		   emu->p16v_buffer.bytes);
366 #endif /* debug */
367 	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
368         switch (runtime->rate) {
369 	case 44100:
370 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
371 	  break;
372 	case 96000:
373 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
374 	  break;
375 	case 192000:
376 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
377 	  break;
378 	case 48000:
379 	default:
380 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
381 	  break;
382 	}
383 	/* FIXME: Check emu->buffer.size before actually writing to it. */
384 	for(i = 0; i < runtime->periods; i++) {
385 		table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
386 		table_base[(i*2)+1]=period_size_bytes<<16;
387 	}
388 
389 	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
390 	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
391 	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
392 	snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
393 	//snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
394 	snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
395 	snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
396 	snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
397 	snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
398 
399 	return 0;
400 }
401 
402 /* prepare capture callback */
403 static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
404 {
405 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
406 	struct snd_pcm_runtime *runtime = substream->runtime;
407 	int channel = substream->pcm->device - emu->p16v_device_offset;
408 	u32 tmp;
409 
410 	/*
411 	dev_dbg(emu->card->dev, "prepare capture:channel_number=%d, rate=%d, "
412 	       "format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, "
413 	       "frames_to_bytes=%d\n",
414 	       channel, runtime->rate, runtime->format, runtime->channels,
415 	       runtime->buffer_size, runtime->period_size,
416 	       frames_to_bytes(runtime, 1));
417 	*/
418 	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
419         switch (runtime->rate) {
420 	case 44100:
421 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
422 	  break;
423 	case 96000:
424 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
425 	  break;
426 	case 192000:
427 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
428 	  break;
429 	case 48000:
430 	default:
431 	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
432 	  break;
433 	}
434 	/* FIXME: Check emu->buffer.size before actually writing to it. */
435 	snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
436 	snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
437 	snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
438 	snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
439 	//snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
440 	//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
441 
442 	return 0;
443 }
444 
445 static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
446 {
447 	unsigned long flags;
448 	unsigned int enable;
449 
450 	spin_lock_irqsave(&emu->emu_lock, flags);
451 	enable = inl(emu->port + INTE2) | intrenb;
452 	outl(enable, emu->port + INTE2);
453 	spin_unlock_irqrestore(&emu->emu_lock, flags);
454 }
455 
456 static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
457 {
458 	unsigned long flags;
459 	unsigned int disable;
460 
461 	spin_lock_irqsave(&emu->emu_lock, flags);
462 	disable = inl(emu->port + INTE2) & (~intrenb);
463 	outl(disable, emu->port + INTE2);
464 	spin_unlock_irqrestore(&emu->emu_lock, flags);
465 }
466 
467 /* trigger_playback callback */
468 static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
469 				    int cmd)
470 {
471 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
472 	struct snd_pcm_runtime *runtime;
473 	struct snd_emu10k1_pcm *epcm;
474 	int channel;
475 	int result = 0;
476         struct snd_pcm_substream *s;
477 	u32 basic = 0;
478 	u32 inte = 0;
479 	int running = 0;
480 
481 	switch (cmd) {
482 	case SNDRV_PCM_TRIGGER_START:
483 		running=1;
484 		break;
485 	case SNDRV_PCM_TRIGGER_STOP:
486 	default:
487 		running = 0;
488 		break;
489 	}
490         snd_pcm_group_for_each_entry(s, substream) {
491 		if (snd_pcm_substream_chip(s) != emu ||
492 		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
493 			continue;
494 		runtime = s->runtime;
495 		epcm = runtime->private_data;
496 		channel = substream->pcm->device-emu->p16v_device_offset;
497 		/* dev_dbg(emu->card->dev, "p16v channel=%d\n", channel); */
498 		epcm->running = running;
499 		basic |= (0x1<<channel);
500 		inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
501                 snd_pcm_trigger_done(s, substream);
502         }
503 	/* dev_dbg(emu->card->dev, "basic=0x%x, inte=0x%x\n", basic, inte); */
504 
505 	switch (cmd) {
506 	case SNDRV_PCM_TRIGGER_START:
507 		snd_p16v_intr_enable(emu, inte);
508 		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
509 		break;
510 	case SNDRV_PCM_TRIGGER_STOP:
511 		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
512 		snd_p16v_intr_disable(emu, inte);
513 		break;
514 	default:
515 		result = -EINVAL;
516 		break;
517 	}
518 	return result;
519 }
520 
521 /* trigger_capture callback */
522 static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
523                                    int cmd)
524 {
525 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
526 	struct snd_pcm_runtime *runtime = substream->runtime;
527 	struct snd_emu10k1_pcm *epcm = runtime->private_data;
528 	int channel = 0;
529 	int result = 0;
530 	u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
531 
532 	switch (cmd) {
533 	case SNDRV_PCM_TRIGGER_START:
534 		snd_p16v_intr_enable(emu, inte);
535 		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
536 		epcm->running = 1;
537 		break;
538 	case SNDRV_PCM_TRIGGER_STOP:
539 		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
540 		snd_p16v_intr_disable(emu, inte);
541 		//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
542 		epcm->running = 0;
543 		break;
544 	default:
545 		result = -EINVAL;
546 		break;
547 	}
548 	return result;
549 }
550 
551 /* pointer_playback callback */
552 static snd_pcm_uframes_t
553 snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
554 {
555 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
556 	struct snd_pcm_runtime *runtime = substream->runtime;
557 	struct snd_emu10k1_pcm *epcm = runtime->private_data;
558 	snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
559 	int channel = substream->pcm->device - emu->p16v_device_offset;
560 	if (!epcm->running)
561 		return 0;
562 
563 	ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
564 	ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
565 	ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
566 	if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
567 	ptr2 = bytes_to_frames(runtime, ptr1);
568 	ptr2+= (ptr4 >> 3) * runtime->period_size;
569 	ptr=ptr2;
570         if (ptr >= runtime->buffer_size)
571 		ptr -= runtime->buffer_size;
572 
573 	return ptr;
574 }
575 
576 /* pointer_capture callback */
577 static snd_pcm_uframes_t
578 snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
579 {
580 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
581 	struct snd_pcm_runtime *runtime = substream->runtime;
582 	struct snd_emu10k1_pcm *epcm = runtime->private_data;
583 	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
584 	int channel = 0;
585 
586 	if (!epcm->running)
587 		return 0;
588 
589 	ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
590 	ptr2 = bytes_to_frames(runtime, ptr1);
591 	ptr=ptr2;
592 	if (ptr >= runtime->buffer_size) {
593 		ptr -= runtime->buffer_size;
594 		dev_warn(emu->card->dev, "buffer capture limited!\n");
595 	}
596 	/*
597 	dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
598 	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
599 	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
600 	       (int)runtime->period_size, (int)runtime->frame_bits,
601 	       (int)runtime->rate);
602 	*/
603 	return ptr;
604 }
605 
606 /* operators */
607 static struct snd_pcm_ops snd_p16v_playback_front_ops = {
608 	.open =        snd_p16v_pcm_open_playback_front,
609 	.close =       snd_p16v_pcm_close_playback,
610 	.ioctl =       snd_pcm_lib_ioctl,
611 	.hw_params =   snd_p16v_pcm_hw_params_playback,
612 	.hw_free =     snd_p16v_pcm_hw_free_playback,
613 	.prepare =     snd_p16v_pcm_prepare_playback,
614 	.trigger =     snd_p16v_pcm_trigger_playback,
615 	.pointer =     snd_p16v_pcm_pointer_playback,
616 };
617 
618 static struct snd_pcm_ops snd_p16v_capture_ops = {
619 	.open =        snd_p16v_pcm_open_capture,
620 	.close =       snd_p16v_pcm_close_capture,
621 	.ioctl =       snd_pcm_lib_ioctl,
622 	.hw_params =   snd_p16v_pcm_hw_params_capture,
623 	.hw_free =     snd_p16v_pcm_hw_free_capture,
624 	.prepare =     snd_p16v_pcm_prepare_capture,
625 	.trigger =     snd_p16v_pcm_trigger_capture,
626 	.pointer =     snd_p16v_pcm_pointer_capture,
627 };
628 
629 
630 int snd_p16v_free(struct snd_emu10k1 *chip)
631 {
632 	// release the data
633 	if (chip->p16v_buffer.area) {
634 		snd_dma_free_pages(&chip->p16v_buffer);
635 		/*
636 		dev_dbg(chip->card->dev, "period lables free: %p\n",
637 			   &chip->p16v_buffer);
638 		*/
639 	}
640 	return 0;
641 }
642 
643 int snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
644 {
645 	struct snd_pcm *pcm;
646 	struct snd_pcm_substream *substream;
647 	int err;
648         int capture=1;
649 
650 	/* dev_dbg(emu->card->dev, "snd_p16v_pcm called. device=%d\n", device); */
651 	emu->p16v_device_offset = device;
652 	if (rpcm)
653 		*rpcm = NULL;
654 
655 	if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
656 		return err;
657 
658 	pcm->private_data = emu;
659 	// Single playback 8 channel device.
660 	// Single capture 2 channel device.
661 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
662 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
663 
664 	pcm->info_flags = 0;
665 	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
666 	strcpy(pcm->name, "p16v");
667 	emu->pcm_p16v = pcm;
668 
669 	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
670 	    substream;
671 	    substream = substream->next) {
672 		if ((err = snd_pcm_lib_preallocate_pages(substream,
673 							 SNDRV_DMA_TYPE_DEV,
674 							 snd_dma_pci_data(emu->pci),
675 							 ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0)
676 			return err;
677 		/*
678 		dev_dbg(emu->card->dev,
679 			   "preallocate playback substream: err=%d\n", err);
680 		*/
681 	}
682 
683 	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
684 	      substream;
685 	      substream = substream->next) {
686  		if ((err = snd_pcm_lib_preallocate_pages(substream,
687 	                                           SNDRV_DMA_TYPE_DEV,
688 	                                           snd_dma_pci_data(emu->pci),
689 	                                           65536 - 64, 65536 - 64)) < 0)
690 			return err;
691 		/*
692 		dev_dbg(emu->card->dev,
693 			   "preallocate capture substream: err=%d\n", err);
694 		*/
695 	}
696 
697 	if (rpcm)
698 		*rpcm = pcm;
699 
700 	return 0;
701 }
702 
703 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
704 				struct snd_ctl_elem_info *uinfo)
705 {
706         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
707         uinfo->count = 2;
708         uinfo->value.integer.min = 0;
709         uinfo->value.integer.max = 255;
710         return 0;
711 }
712 
713 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
714 			       struct snd_ctl_elem_value *ucontrol)
715 {
716         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
717 	int high_low = (kcontrol->private_value >> 8) & 0xff;
718 	int reg = kcontrol->private_value & 0xff;
719 	u32 value;
720 
721 	value = snd_emu10k1_ptr20_read(emu, reg, high_low);
722 	if (high_low) {
723 		ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
724 		ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
725 	} else {
726 		ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
727 		ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
728 	}
729 	return 0;
730 }
731 
732 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
733 			       struct snd_ctl_elem_value *ucontrol)
734 {
735         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
736 	int high_low = (kcontrol->private_value >> 8) & 0xff;
737 	int reg = kcontrol->private_value & 0xff;
738         u32 value, oval;
739 
740 	oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
741 	if (high_low == 1) {
742 		value &= 0xffff;
743 		value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
744 			((0xff - ucontrol->value.integer.value[1]) << 16);
745 	} else {
746 		value &= 0xffff0000;
747 		value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
748 			((0xff - ucontrol->value.integer.value[1]) );
749 	}
750 	if (value != oval) {
751 		snd_emu10k1_ptr20_write(emu, reg, 0, value);
752 		return 1;
753 	}
754 	return 0;
755 }
756 
757 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
758 					struct snd_ctl_elem_info *uinfo)
759 {
760 	static char *texts[8] = {
761 		"SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
762 		"CDIF", "FX", "AC97"
763 	};
764 
765 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
766 	uinfo->count = 1;
767 	uinfo->value.enumerated.items = 8;
768 	if (uinfo->value.enumerated.item > 7)
769                 uinfo->value.enumerated.item = 7;
770 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
771 	return 0;
772 }
773 
774 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
775 					struct snd_ctl_elem_value *ucontrol)
776 {
777 	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
778 
779 	ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
780 	return 0;
781 }
782 
783 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
784 					struct snd_ctl_elem_value *ucontrol)
785 {
786 	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
787 	unsigned int val;
788 	int change = 0;
789 	u32 mask;
790 	u32 source;
791 
792 	val = ucontrol->value.enumerated.item[0] ;
793 	if (val > 7)
794 		return -EINVAL;
795 	change = (emu->p16v_capture_source != val);
796 	if (change) {
797 		emu->p16v_capture_source = val;
798 		source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
799 		mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
800 		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
801 	}
802         return change;
803 }
804 
805 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
806 					 struct snd_ctl_elem_info *uinfo)
807 {
808 	static char *texts[4] = { "0", "1", "2", "3",  };
809 
810 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
811 	uinfo->count = 1;
812 	uinfo->value.enumerated.items = 4;
813 	if (uinfo->value.enumerated.item > 3)
814                 uinfo->value.enumerated.item = 3;
815 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
816 	return 0;
817 }
818 
819 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
820 					struct snd_ctl_elem_value *ucontrol)
821 {
822 	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
823 
824 	ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
825 	return 0;
826 }
827 
828 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
829 					struct snd_ctl_elem_value *ucontrol)
830 {
831 	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
832 	unsigned int val;
833 	int change = 0;
834 	u32 tmp;
835 
836 	val = ucontrol->value.enumerated.item[0] ;
837 	if (val > 3)
838 		return -EINVAL;
839 	change = (emu->p16v_capture_channel != val);
840 	if (change) {
841 		emu->p16v_capture_channel = val;
842 		tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
843 		snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
844 	}
845         return change;
846 }
847 static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
848 
849 #define P16V_VOL(xname,xreg,xhl) { \
850 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
851         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
852                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
853 	.info = snd_p16v_volume_info, \
854 	.get = snd_p16v_volume_get, \
855 	.put = snd_p16v_volume_put, \
856 	.tlv = { .p = snd_p16v_db_scale1 },	\
857 	.private_value = ((xreg) | ((xhl) << 8)) \
858 }
859 
860 static struct snd_kcontrol_new p16v_mixer_controls[] = {
861 	P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
862 	P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
863 	P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
864 	P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
865 	P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
866 	P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
867 	P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
868 	P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
869 	{
870 		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
871 		.name =		"HD source Capture",
872 		.info =		snd_p16v_capture_source_info,
873 		.get =		snd_p16v_capture_source_get,
874 		.put =		snd_p16v_capture_source_put
875 	},
876 	{
877 		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
878 		.name =		"HD channel Capture",
879 		.info =		snd_p16v_capture_channel_info,
880 		.get =		snd_p16v_capture_channel_get,
881 		.put =		snd_p16v_capture_channel_put
882 	},
883 };
884 
885 
886 int snd_p16v_mixer(struct snd_emu10k1 *emu)
887 {
888 	int i, err;
889         struct snd_card *card = emu->card;
890 
891 	for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
892 		if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
893 							  emu))) < 0)
894 			return err;
895 	}
896         return 0;
897 }
898 
899 #ifdef CONFIG_PM_SLEEP
900 
901 #define NUM_CHS	1	/* up to 4, but only first channel is used */
902 
903 int snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
904 {
905 	emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
906 	if (! emu->p16v_saved)
907 		return -ENOMEM;
908 	return 0;
909 }
910 
911 void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
912 {
913 	vfree(emu->p16v_saved);
914 }
915 
916 void snd_p16v_suspend(struct snd_emu10k1 *emu)
917 {
918 	int i, ch;
919 	unsigned int *val;
920 
921 	val = emu->p16v_saved;
922 	for (ch = 0; ch < NUM_CHS; ch++)
923 		for (i = 0; i < 0x80; i++, val++)
924 			*val = snd_emu10k1_ptr20_read(emu, i, ch);
925 }
926 
927 void snd_p16v_resume(struct snd_emu10k1 *emu)
928 {
929 	int i, ch;
930 	unsigned int *val;
931 
932 	val = emu->p16v_saved;
933 	for (ch = 0; ch < NUM_CHS; ch++)
934 		for (i = 0; i < 0x80; i++, val++)
935 			snd_emu10k1_ptr20_write(emu, i, ch, *val);
936 }
937 #endif
938