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 */
125static 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
146static 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
166static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
167{
168	struct snd_emu10k1_pcm *epcm = runtime->private_data;
169
170	kfree(epcm);
171}
172
173/* open_playback callback */
174static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
175{
176	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
177        struct snd_emu10k1_voice *channel = &(emu->p16v_voices[channel_id]);
178	struct snd_emu10k1_pcm *epcm;
179	struct snd_pcm_runtime *runtime = substream->runtime;
180	int err;
181
182	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
183	/* dev_dbg(emu->card->dev, "epcm kcalloc: %p\n", epcm); */
184
185	if (epcm == NULL)
186		return -ENOMEM;
187	epcm->emu = emu;
188	epcm->substream = substream;
189	/*
190	dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
191		   substream->pcm->device, channel_id);
192	*/
193	runtime->private_data = epcm;
194	runtime->private_free = snd_p16v_pcm_free_substream;
195
196	runtime->hw = snd_p16v_playback_hw;
197
198        channel->emu = emu;
199        channel->number = channel_id;
200
201        channel->use=1;
202#if 0 /* debug */
203	dev_dbg(emu->card->dev,
204		   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
205		   channel_id, channel, channel->use);
206	dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
207	       channel_id, chip, channel);
208#endif /* debug */
209	/* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
210	channel->epcm = epcm;
211	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
212                return err;
213
214	runtime->sync.id32[0] = substream->pcm->card->number;
215	runtime->sync.id32[1] = 'P';
216	runtime->sync.id32[2] = 16;
217	runtime->sync.id32[3] = 'V';
218
219	return 0;
220}
221/* open_capture callback */
222static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
223{
224	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
225	struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
226	struct snd_emu10k1_pcm *epcm;
227	struct snd_pcm_runtime *runtime = substream->runtime;
228	int err;
229
230	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
231	/* dev_dbg(emu->card->dev, "epcm kcalloc: %p\n", epcm); */
232
233	if (epcm == NULL)
234		return -ENOMEM;
235	epcm->emu = emu;
236	epcm->substream = substream;
237	/*
238	dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
239		   substream->pcm->device, channel_id);
240	*/
241	runtime->private_data = epcm;
242	runtime->private_free = snd_p16v_pcm_free_substream;
243
244	runtime->hw = snd_p16v_capture_hw;
245
246	channel->emu = emu;
247	channel->number = channel_id;
248
249	channel->use=1;
250#if 0 /* debug */
251	dev_dbg(emu->card->dev,
252		   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
253		   channel_id, channel, channel->use);
254	dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
255	       channel_id, chip, channel);
256#endif /* debug */
257	/* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
258	channel->epcm = epcm;
259	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
260		return err;
261
262	return 0;
263}
264
265
266/* close callback */
267static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
268{
269	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
270	//struct snd_pcm_runtime *runtime = substream->runtime;
271	//struct snd_emu10k1_pcm *epcm = runtime->private_data;
272	emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use = 0;
273	/* FIXME: maybe zero others */
274	return 0;
275}
276
277/* close callback */
278static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
279{
280	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
281	//struct snd_pcm_runtime *runtime = substream->runtime;
282	//struct snd_emu10k1_pcm *epcm = runtime->private_data;
283	emu->p16v_capture_voice.use = 0;
284	/* FIXME: maybe zero others */
285	return 0;
286}
287
288static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
289{
290	return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
291}
292
293static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
294{
295	// Only using channel 0 for now, but the card has 2 channels.
296	return snd_p16v_pcm_open_capture_channel(substream, 0);
297}
298
299/* hw_params callback */
300static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
301				      struct snd_pcm_hw_params *hw_params)
302{
303	int result;
304	result = snd_pcm_lib_malloc_pages(substream,
305					params_buffer_bytes(hw_params));
306	return result;
307}
308
309/* hw_params callback */
310static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
311				      struct snd_pcm_hw_params *hw_params)
312{
313	int result;
314	result = snd_pcm_lib_malloc_pages(substream,
315					params_buffer_bytes(hw_params));
316	return result;
317}
318
319
320/* hw_free callback */
321static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
322{
323	int result;
324	result = snd_pcm_lib_free_pages(substream);
325	return result;
326}
327
328/* hw_free callback */
329static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
330{
331	int result;
332	result = snd_pcm_lib_free_pages(substream);
333	return result;
334}
335
336
337/* prepare playback callback */
338static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
339{
340	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
341	struct snd_pcm_runtime *runtime = substream->runtime;
342	int channel = substream->pcm->device - emu->p16v_device_offset;
343	u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
344	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
345	int i;
346	u32 tmp;
347
348#if 0 /* debug */
349	dev_dbg(emu->card->dev,
350		"prepare:channel_number=%d, rate=%d, "
351		   "format=0x%x, channels=%d, buffer_size=%ld, "
352		   "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
353		   channel, runtime->rate, runtime->format, runtime->channels,
354		   runtime->buffer_size, runtime->period_size,
355		   runtime->periods, frames_to_bytes(runtime, 1));
356	dev_dbg(emu->card->dev,
357		"dma_addr=%x, dma_area=%p, table_base=%p\n",
358		   runtime->dma_addr, runtime->dma_area, table_base);
359	dev_dbg(emu->card->dev,
360		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
361		   emu->p16v_buffer.addr, emu->p16v_buffer.area,
362		   emu->p16v_buffer.bytes);
363#endif /* debug */
364	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
365        switch (runtime->rate) {
366	case 44100:
367	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
368	  break;
369	case 96000:
370	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
371	  break;
372	case 192000:
373	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
374	  break;
375	case 48000:
376	default:
377	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
378	  break;
379	}
380	/* FIXME: Check emu->buffer.size before actually writing to it. */
381	for(i = 0; i < runtime->periods; i++) {
382		table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
383		table_base[(i*2)+1]=period_size_bytes<<16;
384	}
385
386	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
387	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
388	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
389	snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
390	//snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
391	snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
392	snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
393	snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
394	snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
395
396	return 0;
397}
398
399/* prepare capture callback */
400static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
401{
402	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
403	struct snd_pcm_runtime *runtime = substream->runtime;
404	int channel = substream->pcm->device - emu->p16v_device_offset;
405	u32 tmp;
406
407	/*
408	dev_dbg(emu->card->dev, "prepare capture:channel_number=%d, rate=%d, "
409	       "format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, "
410	       "frames_to_bytes=%d\n",
411	       channel, runtime->rate, runtime->format, runtime->channels,
412	       runtime->buffer_size, runtime->period_size,
413	       frames_to_bytes(runtime, 1));
414	*/
415	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
416        switch (runtime->rate) {
417	case 44100:
418	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
419	  break;
420	case 96000:
421	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
422	  break;
423	case 192000:
424	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
425	  break;
426	case 48000:
427	default:
428	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
429	  break;
430	}
431	/* FIXME: Check emu->buffer.size before actually writing to it. */
432	snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
433	snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
434	snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
435	snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
436	//snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
437	//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
438
439	return 0;
440}
441
442static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
443{
444	unsigned long flags;
445	unsigned int enable;
446
447	spin_lock_irqsave(&emu->emu_lock, flags);
448	enable = inl(emu->port + INTE2) | intrenb;
449	outl(enable, emu->port + INTE2);
450	spin_unlock_irqrestore(&emu->emu_lock, flags);
451}
452
453static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
454{
455	unsigned long flags;
456	unsigned int disable;
457
458	spin_lock_irqsave(&emu->emu_lock, flags);
459	disable = inl(emu->port + INTE2) & (~intrenb);
460	outl(disable, emu->port + INTE2);
461	spin_unlock_irqrestore(&emu->emu_lock, flags);
462}
463
464/* trigger_playback callback */
465static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
466				    int cmd)
467{
468	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
469	struct snd_pcm_runtime *runtime;
470	struct snd_emu10k1_pcm *epcm;
471	int channel;
472	int result = 0;
473        struct snd_pcm_substream *s;
474	u32 basic = 0;
475	u32 inte = 0;
476	int running = 0;
477
478	switch (cmd) {
479	case SNDRV_PCM_TRIGGER_START:
480		running=1;
481		break;
482	case SNDRV_PCM_TRIGGER_STOP:
483	default:
484		running = 0;
485		break;
486	}
487        snd_pcm_group_for_each_entry(s, substream) {
488		if (snd_pcm_substream_chip(s) != emu ||
489		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
490			continue;
491		runtime = s->runtime;
492		epcm = runtime->private_data;
493		channel = substream->pcm->device-emu->p16v_device_offset;
494		/* dev_dbg(emu->card->dev, "p16v channel=%d\n", channel); */
495		epcm->running = running;
496		basic |= (0x1<<channel);
497		inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
498                snd_pcm_trigger_done(s, substream);
499        }
500	/* dev_dbg(emu->card->dev, "basic=0x%x, inte=0x%x\n", basic, inte); */
501
502	switch (cmd) {
503	case SNDRV_PCM_TRIGGER_START:
504		snd_p16v_intr_enable(emu, inte);
505		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
506		break;
507	case SNDRV_PCM_TRIGGER_STOP:
508		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
509		snd_p16v_intr_disable(emu, inte);
510		break;
511	default:
512		result = -EINVAL;
513		break;
514	}
515	return result;
516}
517
518/* trigger_capture callback */
519static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
520                                   int cmd)
521{
522	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
523	struct snd_pcm_runtime *runtime = substream->runtime;
524	struct snd_emu10k1_pcm *epcm = runtime->private_data;
525	int channel = 0;
526	int result = 0;
527	u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
528
529	switch (cmd) {
530	case SNDRV_PCM_TRIGGER_START:
531		snd_p16v_intr_enable(emu, inte);
532		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
533		epcm->running = 1;
534		break;
535	case SNDRV_PCM_TRIGGER_STOP:
536		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
537		snd_p16v_intr_disable(emu, inte);
538		//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
539		epcm->running = 0;
540		break;
541	default:
542		result = -EINVAL;
543		break;
544	}
545	return result;
546}
547
548/* pointer_playback callback */
549static snd_pcm_uframes_t
550snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
551{
552	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
553	struct snd_pcm_runtime *runtime = substream->runtime;
554	struct snd_emu10k1_pcm *epcm = runtime->private_data;
555	snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
556	int channel = substream->pcm->device - emu->p16v_device_offset;
557	if (!epcm->running)
558		return 0;
559
560	ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
561	ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
562	ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
563	if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
564	ptr2 = bytes_to_frames(runtime, ptr1);
565	ptr2+= (ptr4 >> 3) * runtime->period_size;
566	ptr=ptr2;
567        if (ptr >= runtime->buffer_size)
568		ptr -= runtime->buffer_size;
569
570	return ptr;
571}
572
573/* pointer_capture callback */
574static snd_pcm_uframes_t
575snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
576{
577	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
578	struct snd_pcm_runtime *runtime = substream->runtime;
579	struct snd_emu10k1_pcm *epcm = runtime->private_data;
580	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
581	int channel = 0;
582
583	if (!epcm->running)
584		return 0;
585
586	ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
587	ptr2 = bytes_to_frames(runtime, ptr1);
588	ptr=ptr2;
589	if (ptr >= runtime->buffer_size) {
590		ptr -= runtime->buffer_size;
591		dev_warn(emu->card->dev, "buffer capture limited!\n");
592	}
593	/*
594	dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
595	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
596	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
597	       (int)runtime->period_size, (int)runtime->frame_bits,
598	       (int)runtime->rate);
599	*/
600	return ptr;
601}
602
603/* operators */
604static struct snd_pcm_ops snd_p16v_playback_front_ops = {
605	.open =        snd_p16v_pcm_open_playback_front,
606	.close =       snd_p16v_pcm_close_playback,
607	.ioctl =       snd_pcm_lib_ioctl,
608	.hw_params =   snd_p16v_pcm_hw_params_playback,
609	.hw_free =     snd_p16v_pcm_hw_free_playback,
610	.prepare =     snd_p16v_pcm_prepare_playback,
611	.trigger =     snd_p16v_pcm_trigger_playback,
612	.pointer =     snd_p16v_pcm_pointer_playback,
613};
614
615static struct snd_pcm_ops snd_p16v_capture_ops = {
616	.open =        snd_p16v_pcm_open_capture,
617	.close =       snd_p16v_pcm_close_capture,
618	.ioctl =       snd_pcm_lib_ioctl,
619	.hw_params =   snd_p16v_pcm_hw_params_capture,
620	.hw_free =     snd_p16v_pcm_hw_free_capture,
621	.prepare =     snd_p16v_pcm_prepare_capture,
622	.trigger =     snd_p16v_pcm_trigger_capture,
623	.pointer =     snd_p16v_pcm_pointer_capture,
624};
625
626
627int snd_p16v_free(struct snd_emu10k1 *chip)
628{
629	// release the data
630	if (chip->p16v_buffer.area) {
631		snd_dma_free_pages(&chip->p16v_buffer);
632		/*
633		dev_dbg(chip->card->dev, "period lables free: %p\n",
634			   &chip->p16v_buffer);
635		*/
636	}
637	return 0;
638}
639
640int snd_p16v_pcm(struct snd_emu10k1 *emu, int device)
641{
642	struct snd_pcm *pcm;
643	struct snd_pcm_substream *substream;
644	int err;
645        int capture=1;
646
647	/* dev_dbg(emu->card->dev, "snd_p16v_pcm called. device=%d\n", device); */
648	emu->p16v_device_offset = device;
649
650	if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
651		return err;
652
653	pcm->private_data = emu;
654	// Single playback 8 channel device.
655	// Single capture 2 channel device.
656	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
657	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
658
659	pcm->info_flags = 0;
660	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
661	strcpy(pcm->name, "p16v");
662	emu->pcm_p16v = pcm;
663
664	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
665	    substream;
666	    substream = substream->next) {
667		if ((err = snd_pcm_lib_preallocate_pages(substream,
668							 SNDRV_DMA_TYPE_DEV,
669							 snd_dma_pci_data(emu->pci),
670							 ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0)
671			return err;
672		/*
673		dev_dbg(emu->card->dev,
674			   "preallocate playback substream: err=%d\n", err);
675		*/
676	}
677
678	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
679	      substream;
680	      substream = substream->next) {
681 		if ((err = snd_pcm_lib_preallocate_pages(substream,
682	                                           SNDRV_DMA_TYPE_DEV,
683	                                           snd_dma_pci_data(emu->pci),
684	                                           65536 - 64, 65536 - 64)) < 0)
685			return err;
686		/*
687		dev_dbg(emu->card->dev,
688			   "preallocate capture substream: err=%d\n", err);
689		*/
690	}
691
692	return 0;
693}
694
695static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
696				struct snd_ctl_elem_info *uinfo)
697{
698        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
699        uinfo->count = 2;
700        uinfo->value.integer.min = 0;
701        uinfo->value.integer.max = 255;
702        return 0;
703}
704
705static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
706			       struct snd_ctl_elem_value *ucontrol)
707{
708        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
709	int high_low = (kcontrol->private_value >> 8) & 0xff;
710	int reg = kcontrol->private_value & 0xff;
711	u32 value;
712
713	value = snd_emu10k1_ptr20_read(emu, reg, high_low);
714	if (high_low) {
715		ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
716		ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
717	} else {
718		ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
719		ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
720	}
721	return 0;
722}
723
724static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
725			       struct snd_ctl_elem_value *ucontrol)
726{
727        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
728	int high_low = (kcontrol->private_value >> 8) & 0xff;
729	int reg = kcontrol->private_value & 0xff;
730        u32 value, oval;
731
732	oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
733	if (high_low == 1) {
734		value &= 0xffff;
735		value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
736			((0xff - ucontrol->value.integer.value[1]) << 16);
737	} else {
738		value &= 0xffff0000;
739		value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
740			((0xff - ucontrol->value.integer.value[1]) );
741	}
742	if (value != oval) {
743		snd_emu10k1_ptr20_write(emu, reg, 0, value);
744		return 1;
745	}
746	return 0;
747}
748
749static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
750					struct snd_ctl_elem_info *uinfo)
751{
752	static const char * const texts[8] = {
753		"SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
754		"CDIF", "FX", "AC97"
755	};
756
757	return snd_ctl_enum_info(uinfo, 1, 8, texts);
758}
759
760static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
761					struct snd_ctl_elem_value *ucontrol)
762{
763	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
764
765	ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
766	return 0;
767}
768
769static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
770					struct snd_ctl_elem_value *ucontrol)
771{
772	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
773	unsigned int val;
774	int change = 0;
775	u32 mask;
776	u32 source;
777
778	val = ucontrol->value.enumerated.item[0] ;
779	if (val > 7)
780		return -EINVAL;
781	change = (emu->p16v_capture_source != val);
782	if (change) {
783		emu->p16v_capture_source = val;
784		source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
785		mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
786		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
787	}
788        return change;
789}
790
791static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
792					 struct snd_ctl_elem_info *uinfo)
793{
794	static const char * const texts[4] = { "0", "1", "2", "3", };
795
796	return snd_ctl_enum_info(uinfo, 1, 4, texts);
797}
798
799static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
800					struct snd_ctl_elem_value *ucontrol)
801{
802	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
803
804	ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
805	return 0;
806}
807
808static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
809					struct snd_ctl_elem_value *ucontrol)
810{
811	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
812	unsigned int val;
813	int change = 0;
814	u32 tmp;
815
816	val = ucontrol->value.enumerated.item[0] ;
817	if (val > 3)
818		return -EINVAL;
819	change = (emu->p16v_capture_channel != val);
820	if (change) {
821		emu->p16v_capture_channel = val;
822		tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
823		snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
824	}
825        return change;
826}
827static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
828
829#define P16V_VOL(xname,xreg,xhl) { \
830	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
831        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
832                  SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
833	.info = snd_p16v_volume_info, \
834	.get = snd_p16v_volume_get, \
835	.put = snd_p16v_volume_put, \
836	.tlv = { .p = snd_p16v_db_scale1 },	\
837	.private_value = ((xreg) | ((xhl) << 8)) \
838}
839
840static struct snd_kcontrol_new p16v_mixer_controls[] = {
841	P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
842	P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
843	P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
844	P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
845	P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
846	P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
847	P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
848	P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
849	{
850		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
851		.name =		"HD source Capture",
852		.info =		snd_p16v_capture_source_info,
853		.get =		snd_p16v_capture_source_get,
854		.put =		snd_p16v_capture_source_put
855	},
856	{
857		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
858		.name =		"HD channel Capture",
859		.info =		snd_p16v_capture_channel_info,
860		.get =		snd_p16v_capture_channel_get,
861		.put =		snd_p16v_capture_channel_put
862	},
863};
864
865
866int snd_p16v_mixer(struct snd_emu10k1 *emu)
867{
868	int i, err;
869        struct snd_card *card = emu->card;
870
871	for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
872		if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
873							  emu))) < 0)
874			return err;
875	}
876        return 0;
877}
878
879#ifdef CONFIG_PM_SLEEP
880
881#define NUM_CHS	1	/* up to 4, but only first channel is used */
882
883int snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
884{
885	emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
886	if (! emu->p16v_saved)
887		return -ENOMEM;
888	return 0;
889}
890
891void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
892{
893	vfree(emu->p16v_saved);
894}
895
896void snd_p16v_suspend(struct snd_emu10k1 *emu)
897{
898	int i, ch;
899	unsigned int *val;
900
901	val = emu->p16v_saved;
902	for (ch = 0; ch < NUM_CHS; ch++)
903		for (i = 0; i < 0x80; i++, val++)
904			*val = snd_emu10k1_ptr20_read(emu, i, ch);
905}
906
907void snd_p16v_resume(struct snd_emu10k1 *emu)
908{
909	int i, ch;
910	unsigned int *val;
911
912	val = emu->p16v_saved;
913	for (ch = 0; ch < NUM_CHS; ch++)
914		for (i = 0; i < 0x80; i++, val++)
915			snd_emu10k1_ptr20_write(emu, i, ch, *val);
916}
917#endif
918