90470de8bb8e7d0eee284bd4b3c959a9728eb051
[linux-2.6.git] / sound / pci / emu10k1 / p16v.c
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 initally 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 <sound/driver.h>
91 #include <linux/delay.h>
92 #include <linux/init.h>
93 #include <linux/interrupt.h>
94 #include <linux/pci.h>
95 #include <linux/slab.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/emu10k1.h>
103 #include "p16v.h"
104
105 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
106 #define PCM_FRONT_CHANNEL 0
107 #define PCM_REAR_CHANNEL 1
108 #define PCM_CENTER_LFE_CHANNEL 2
109 #define PCM_UNKNOWN_CHANNEL 3
110 #define CONTROL_FRONT_CHANNEL 0
111 #define CONTROL_REAR_CHANNEL 3
112 #define CONTROL_CENTER_LFE_CHANNEL 1
113 #define CONTROL_UNKNOWN_CHANNEL 2
114
115 /* Card IDs:
116  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
117  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
118  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
119  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
120  *
121  */
122
123  /* hardware definition */
124 static struct snd_pcm_hardware snd_p16v_playback_hw = {
125         .info =                 (SNDRV_PCM_INFO_MMAP | 
126                                  SNDRV_PCM_INFO_INTERLEAVED |
127                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
128                                  SNDRV_PCM_INFO_MMAP_VALID),
129         .formats =              SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
130         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100, 
131         .rate_min =             44100,
132         .rate_max =             192000,
133         .channels_min =         8, 
134         .channels_max =         8,
135         .buffer_bytes_max =     ((65536 - 64) * 8),
136         .period_bytes_min =     64,
137         .period_bytes_max =     (65536 - 64),
138         .periods_min =          2,
139         .periods_max =          8,
140         .fifo_size =            0,
141 };
142
143 static struct snd_pcm_hardware snd_p16v_capture_hw = {
144         .info =                 (SNDRV_PCM_INFO_MMAP |
145                                  SNDRV_PCM_INFO_INTERLEAVED |
146                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
147                                  SNDRV_PCM_INFO_MMAP_VALID),
148         .formats =              SNDRV_PCM_FMTBIT_S32_LE,
149         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100, 
150         .rate_min =             44100,
151         .rate_max =             192000,
152         .channels_min =         2,
153         .channels_max =         2,
154         .buffer_bytes_max =     (65536 - 64),
155         .period_bytes_min =     64,
156         .period_bytes_max =     (65536 - 128) >> 1,  /* size has to be N*64 bytes */
157         .periods_min =          2,
158         .periods_max =          2,
159         .fifo_size =            0,
160 };
161
162 static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
163 {
164         struct snd_emu10k1_pcm *epcm = runtime->private_data;
165   
166         if (epcm) {
167                 //snd_printk("epcm free: %p\n", epcm);
168                 kfree(epcm);
169         }
170 }
171
172 /* open_playback callback */
173 static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
174 {
175         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
176         struct snd_emu10k1_voice *channel = &(emu->p16v_voices[channel_id]);
177         struct snd_emu10k1_pcm *epcm;
178         struct snd_pcm_runtime *runtime = substream->runtime;
179         int err;
180
181         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
182         //snd_printk("epcm kcalloc: %p\n", epcm);
183
184         if (epcm == NULL)
185                 return -ENOMEM;
186         epcm->emu = emu;
187         epcm->substream = substream;
188         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
189   
190         runtime->private_data = epcm;
191         runtime->private_free = snd_p16v_pcm_free_substream;
192   
193         runtime->hw = snd_p16v_playback_hw;
194
195         channel->emu = emu;
196         channel->number = channel_id;
197
198         channel->use=1;
199         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
200         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
201         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
202         channel->epcm=epcm;
203         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
204                 return err;
205
206         return 0;
207 }
208 /* open_capture callback */
209 static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
210 {
211         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
212         struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
213         struct snd_emu10k1_pcm *epcm;
214         struct snd_pcm_runtime *runtime = substream->runtime;
215         int err;
216
217         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
218         //snd_printk("epcm kcalloc: %p\n", epcm);
219
220         if (epcm == NULL)
221                 return -ENOMEM;
222         epcm->emu = emu;
223         epcm->substream = substream;
224         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
225
226         runtime->private_data = epcm;
227         runtime->private_free = snd_p16v_pcm_free_substream;
228   
229         runtime->hw = snd_p16v_capture_hw;
230
231         channel->emu = emu;
232         channel->number = channel_id;
233
234         channel->use=1;
235         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
236         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
237         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
238         channel->epcm=epcm;
239         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
240                 return err;
241
242         return 0;
243 }
244
245
246 /* close callback */
247 static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
248 {
249         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
250         //struct snd_pcm_runtime *runtime = substream->runtime;
251         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
252         emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use=0;
253         /* FIXME: maybe zero others */
254         return 0;
255 }
256
257 /* close callback */
258 static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
259 {
260         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
261         //struct snd_pcm_runtime *runtime = substream->runtime;
262         //struct snd_emu10k1_pcm *epcm = runtime->private_data;
263         emu->p16v_capture_voice.use=0;
264         /* FIXME: maybe zero others */
265         return 0;
266 }
267
268 static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
269 {
270         return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
271 }
272
273 static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
274 {
275         // Only using channel 0 for now, but the card has 2 channels.
276         return snd_p16v_pcm_open_capture_channel(substream, 0);
277 }
278
279 /* hw_params callback */
280 static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
281                                       struct snd_pcm_hw_params *hw_params)
282 {
283         int result;
284         result = snd_pcm_lib_malloc_pages(substream,
285                                         params_buffer_bytes(hw_params));
286         return result;
287 }
288
289 /* hw_params callback */
290 static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
291                                       struct snd_pcm_hw_params *hw_params)
292 {
293         int result;
294         result = snd_pcm_lib_malloc_pages(substream,
295                                         params_buffer_bytes(hw_params));
296         return result;
297 }
298
299
300 /* hw_free callback */
301 static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
302 {
303         int result;
304         result = snd_pcm_lib_free_pages(substream);
305         return result;
306 }
307
308 /* hw_free callback */
309 static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
310 {
311         int result;
312         result = snd_pcm_lib_free_pages(substream);
313         return result;
314 }
315
316
317 /* prepare playback callback */
318 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
319 {
320         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
321         struct snd_pcm_runtime *runtime = substream->runtime;
322         int channel = substream->pcm->device - emu->p16v_device_offset;
323         u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
324         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
325         int i;
326         u32 tmp;
327         
328         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
329         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
330         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->p16v_buffer.addr, emu->p16v_buffer.area, emu->p16v_buffer.bytes);
331         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
332         switch (runtime->rate) {
333         case 44100:
334           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
335           break;
336         case 96000:
337           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
338           break;
339         case 192000:
340           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
341           break;
342         case 48000:
343         default:
344           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
345           break;
346         }
347         /* FIXME: Check emu->buffer.size before actually writing to it. */
348         for(i=0; i < runtime->periods; i++) {
349                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
350                 table_base[(i*2)+1]=period_size_bytes<<16;
351         }
352  
353         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
354         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
355         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
356         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
357         //snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
358         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
359         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
360         snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
361         snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
362
363         return 0;
364 }
365
366 /* prepare capture callback */
367 static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
368 {
369         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
370         struct snd_pcm_runtime *runtime = substream->runtime;
371         int channel = substream->pcm->device - emu->p16v_device_offset;
372         u32 tmp;
373         //printk("prepare capture:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size,  frames_to_bytes(runtime, 1));
374         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
375         switch (runtime->rate) {
376         case 44100:
377           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
378           break;
379         case 96000:
380           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
381           break;
382         case 192000:
383           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
384           break;
385         case 48000:
386         default:
387           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
388           break;
389         }
390         /* FIXME: Check emu->buffer.size before actually writing to it. */
391         snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
392         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
393         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
394         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
395         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
396         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
397
398         return 0;
399 }
400
401 static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
402 {
403         unsigned long flags;
404         unsigned int enable;
405
406         spin_lock_irqsave(&emu->emu_lock, flags);
407         enable = inl(emu->port + INTE2) | intrenb;
408         outl(enable, emu->port + INTE2);
409         spin_unlock_irqrestore(&emu->emu_lock, flags);
410 }
411
412 static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
413 {
414         unsigned long flags;
415         unsigned int disable;
416
417         spin_lock_irqsave(&emu->emu_lock, flags);
418         disable = inl(emu->port + INTE2) & (~intrenb);
419         outl(disable, emu->port + INTE2);
420         spin_unlock_irqrestore(&emu->emu_lock, flags);
421 }
422
423 /* trigger_playback callback */
424 static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
425                                     int cmd)
426 {
427         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
428         struct snd_pcm_runtime *runtime;
429         struct snd_emu10k1_pcm *epcm;
430         int channel;
431         int result = 0;
432         struct list_head *pos;
433         struct snd_pcm_substream *s;
434         u32 basic = 0;
435         u32 inte = 0;
436         int running=0;
437
438         switch (cmd) {
439         case SNDRV_PCM_TRIGGER_START:
440                 running=1;
441                 break;
442         case SNDRV_PCM_TRIGGER_STOP:
443         default:
444                 running=0;
445                 break;
446         }
447         snd_pcm_group_for_each(pos, substream) {
448                 s = snd_pcm_group_substream_entry(pos);
449                 runtime = s->runtime;
450                 epcm = runtime->private_data;
451                 channel = substream->pcm->device-emu->p16v_device_offset;
452                 //snd_printk("p16v channel=%d\n",channel);
453                 epcm->running = running;
454                 basic |= (0x1<<channel);
455                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
456                 snd_pcm_trigger_done(s, substream);
457         }
458         //snd_printk("basic=0x%x, inte=0x%x\n",basic, inte);
459
460         switch (cmd) {
461         case SNDRV_PCM_TRIGGER_START:
462                 snd_p16v_intr_enable(emu, inte);
463                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
464                 break;
465         case SNDRV_PCM_TRIGGER_STOP:
466                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
467                 snd_p16v_intr_disable(emu, inte);
468                 break;
469         default:
470                 result = -EINVAL;
471                 break;
472         }
473         return result;
474 }
475
476 /* trigger_capture callback */
477 static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
478                                    int cmd)
479 {
480         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
481         struct snd_pcm_runtime *runtime = substream->runtime;
482         struct snd_emu10k1_pcm *epcm = runtime->private_data;
483         int channel = 0;
484         int result = 0;
485         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
486
487         switch (cmd) {
488         case SNDRV_PCM_TRIGGER_START:
489                 snd_p16v_intr_enable(emu, inte);
490                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
491                 epcm->running = 1;
492                 break;
493         case SNDRV_PCM_TRIGGER_STOP:
494                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
495                 snd_p16v_intr_disable(emu, inte);
496                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
497                 epcm->running = 0;
498                 break;
499         default:
500                 result = -EINVAL;
501                 break;
502         }
503         return result;
504 }
505
506 /* pointer_playback callback */
507 static snd_pcm_uframes_t
508 snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
509 {
510         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
511         struct snd_pcm_runtime *runtime = substream->runtime;
512         struct snd_emu10k1_pcm *epcm = runtime->private_data;
513         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
514         int channel = substream->pcm->device - emu->p16v_device_offset;
515         if (!epcm->running)
516                 return 0;
517
518         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
519         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
520         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
521         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
522         ptr2 = bytes_to_frames(runtime, ptr1);
523         ptr2+= (ptr4 >> 3) * runtime->period_size;
524         ptr=ptr2;
525         if (ptr >= runtime->buffer_size)
526                 ptr -= runtime->buffer_size;
527
528         return ptr;
529 }
530
531 /* pointer_capture callback */
532 static snd_pcm_uframes_t
533 snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
534 {
535         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
536         struct snd_pcm_runtime *runtime = substream->runtime;
537         struct snd_emu10k1_pcm *epcm = runtime->private_data;
538         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
539         int channel = 0;
540
541         if (!epcm->running)
542                 return 0;
543
544         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
545         ptr2 = bytes_to_frames(runtime, ptr1);
546         ptr=ptr2;
547         if (ptr >= runtime->buffer_size) {
548                 ptr -= runtime->buffer_size;
549                 printk(KERN_WARNING "buffer capture limited!\n");
550         }
551         //printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
552
553         return ptr;
554 }
555
556 /* operators */
557 static struct snd_pcm_ops snd_p16v_playback_front_ops = {
558         .open =        snd_p16v_pcm_open_playback_front,
559         .close =       snd_p16v_pcm_close_playback,
560         .ioctl =       snd_pcm_lib_ioctl,
561         .hw_params =   snd_p16v_pcm_hw_params_playback,
562         .hw_free =     snd_p16v_pcm_hw_free_playback,
563         .prepare =     snd_p16v_pcm_prepare_playback,
564         .trigger =     snd_p16v_pcm_trigger_playback,
565         .pointer =     snd_p16v_pcm_pointer_playback,
566 };
567
568 static struct snd_pcm_ops snd_p16v_capture_ops = {
569         .open =        snd_p16v_pcm_open_capture,
570         .close =       snd_p16v_pcm_close_capture,
571         .ioctl =       snd_pcm_lib_ioctl,
572         .hw_params =   snd_p16v_pcm_hw_params_capture,
573         .hw_free =     snd_p16v_pcm_hw_free_capture,
574         .prepare =     snd_p16v_pcm_prepare_capture,
575         .trigger =     snd_p16v_pcm_trigger_capture,
576         .pointer =     snd_p16v_pcm_pointer_capture,
577 };
578
579
580 int snd_p16v_free(struct snd_emu10k1 *chip)
581 {
582         // release the data
583         if (chip->p16v_buffer.area) {
584                 snd_dma_free_pages(&chip->p16v_buffer);
585                 //snd_printk("period lables free: %p\n", &chip->p16v_buffer);
586         }
587         return 0;
588 }
589
590 int snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
591 {
592         struct snd_pcm *pcm;
593         struct snd_pcm_substream *substream;
594         int err;
595         int capture=1;
596   
597         //snd_printk("snd_p16v_pcm called. device=%d\n", device);
598         emu->p16v_device_offset = device;
599         if (rpcm)
600                 *rpcm = NULL;
601
602         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
603                 return err;
604   
605         pcm->private_data = emu;
606         // Single playback 8 channel device.
607         // Single capture 2 channel device.
608         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
609         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
610
611         pcm->info_flags = 0;
612         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
613         strcpy(pcm->name, "p16v");
614         emu->pcm = pcm;
615
616         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
617             substream; 
618             substream = substream->next) {
619                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
620                                                          SNDRV_DMA_TYPE_DEV, 
621                                                          snd_dma_pci_data(emu->pci), 
622                                                          ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0) 
623                         return err;
624                 //snd_printk("preallocate playback substream: err=%d\n", err);
625         }
626
627         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
628               substream; 
629               substream = substream->next) {
630                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
631                                                    SNDRV_DMA_TYPE_DEV, 
632                                                    snd_dma_pci_data(emu->pci), 
633                                                    65536 - 64, 65536 - 64)) < 0)
634                         return err;
635                 //snd_printk("preallocate capture substream: err=%d\n", err);
636         }
637   
638         if (rpcm)
639                 *rpcm = pcm;
640   
641         return 0;
642 }
643
644 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
645 {
646         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
647         uinfo->count = 2;
648         uinfo->value.integer.min = 0;
649         uinfo->value.integer.max = 255;
650         return 0;
651 }
652
653 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
654                                        struct snd_ctl_elem_value *ucontrol, int reg, int high_low)
655 {
656         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
657         u32 value;
658
659         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
660         if (high_low == 1) {
661                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
662                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
663         } else {
664                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
665                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
666         }
667         return 0;
668 }
669
670 static int snd_p16v_volume_get_spdif_front(struct snd_kcontrol *kcontrol,
671                                        struct snd_ctl_elem_value *ucontrol)
672 {
673         int high_low = 0;
674         int reg = PLAYBACK_VOLUME_MIXER7;
675         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
676 }
677
678 static int snd_p16v_volume_get_spdif_center_lfe(struct snd_kcontrol *kcontrol,
679                                        struct snd_ctl_elem_value *ucontrol)
680 {
681         int high_low = 1;
682         int reg = PLAYBACK_VOLUME_MIXER7;
683         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
684 }
685 static int snd_p16v_volume_get_spdif_unknown(struct snd_kcontrol *kcontrol,
686                                        struct snd_ctl_elem_value *ucontrol)
687 {
688         int high_low = 0;
689         int reg = PLAYBACK_VOLUME_MIXER8;
690         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
691 }
692 static int snd_p16v_volume_get_spdif_rear(struct snd_kcontrol *kcontrol,
693                                        struct snd_ctl_elem_value *ucontrol)
694 {
695         int high_low = 1;
696         int reg = PLAYBACK_VOLUME_MIXER8;
697         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
698 }
699
700 static int snd_p16v_volume_get_analog_front(struct snd_kcontrol *kcontrol,
701                                        struct snd_ctl_elem_value *ucontrol)
702 {
703         int high_low = 0;
704         int reg = PLAYBACK_VOLUME_MIXER9;
705         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
706 }
707
708 static int snd_p16v_volume_get_analog_center_lfe(struct snd_kcontrol *kcontrol,
709                                        struct snd_ctl_elem_value *ucontrol)
710 {
711         int high_low = 1;
712         int reg = PLAYBACK_VOLUME_MIXER9;
713         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
714 }
715 static int snd_p16v_volume_get_analog_rear(struct snd_kcontrol *kcontrol,
716                                        struct snd_ctl_elem_value *ucontrol)
717 {
718         int high_low = 1;
719         int reg = PLAYBACK_VOLUME_MIXER10;
720         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
721 }
722
723 static int snd_p16v_volume_get_analog_unknown(struct snd_kcontrol *kcontrol,
724                                        struct snd_ctl_elem_value *ucontrol)
725 {
726         int high_low = 0;
727         int reg = PLAYBACK_VOLUME_MIXER10;
728         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
729 }
730
731 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
732                                        struct snd_ctl_elem_value *ucontrol, int reg, int high_low)
733 {
734         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
735         u32 value;
736         value = snd_emu10k1_ptr20_read(emu, reg, 0);
737         //value = value & 0xffff;
738         if (high_low == 1) {
739                 value &= 0xffff;
740                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 24) | ((0xff - ucontrol->value.integer.value[1]) << 16);
741         } else {
742                 value &= 0xffff0000;
743                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 8) | ((0xff - ucontrol->value.integer.value[1]) );
744         }
745                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
746         return 1;
747 }
748
749 static int snd_p16v_volume_put_spdif_front(struct snd_kcontrol *kcontrol,
750                                        struct snd_ctl_elem_value *ucontrol)
751 {
752         int high_low = 0;
753         int reg = PLAYBACK_VOLUME_MIXER7;
754         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
755 }
756
757 static int snd_p16v_volume_put_spdif_center_lfe(struct snd_kcontrol *kcontrol,
758                                        struct snd_ctl_elem_value *ucontrol)
759 {
760         int high_low = 1;
761         int reg = PLAYBACK_VOLUME_MIXER7;
762         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
763 }
764
765 static int snd_p16v_volume_put_spdif_unknown(struct snd_kcontrol *kcontrol,
766                                        struct snd_ctl_elem_value *ucontrol)
767 {
768         int high_low = 0;
769         int reg = PLAYBACK_VOLUME_MIXER8;
770         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
771 }
772
773 static int snd_p16v_volume_put_spdif_rear(struct snd_kcontrol *kcontrol,
774                                        struct snd_ctl_elem_value *ucontrol)
775 {
776         int high_low = 1;
777         int reg = PLAYBACK_VOLUME_MIXER8;
778         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
779 }
780
781 static int snd_p16v_volume_put_analog_front(struct snd_kcontrol *kcontrol,
782                                        struct snd_ctl_elem_value *ucontrol)
783 {
784         int high_low = 0;
785         int reg = PLAYBACK_VOLUME_MIXER9;
786         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
787 }
788
789 static int snd_p16v_volume_put_analog_center_lfe(struct snd_kcontrol *kcontrol,
790                                        struct snd_ctl_elem_value *ucontrol)
791 {
792         int high_low = 1;
793         int reg = PLAYBACK_VOLUME_MIXER9;
794         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
795 }
796
797 static int snd_p16v_volume_put_analog_rear(struct snd_kcontrol *kcontrol,
798                                        struct snd_ctl_elem_value *ucontrol)
799 {
800         int high_low = 1;
801         int reg = PLAYBACK_VOLUME_MIXER10;
802         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
803 }
804
805 static int snd_p16v_volume_put_analog_unknown(struct snd_kcontrol *kcontrol,
806                                        struct snd_ctl_elem_value *ucontrol)
807 {
808         int high_low = 0;
809         int reg = PLAYBACK_VOLUME_MIXER10;
810         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
811 }
812
813 static struct snd_kcontrol_new snd_p16v_volume_control_analog_front =
814 {
815         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
816         .name =         "HD Analog Front Playback Volume",
817         .info =         snd_p16v_volume_info,
818         .get =          snd_p16v_volume_get_analog_front,
819         .put =          snd_p16v_volume_put_analog_front
820 };
821
822 static struct snd_kcontrol_new snd_p16v_volume_control_analog_center_lfe =
823 {
824         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
825         .name =         "HD Analog Center/LFE Playback Volume",
826         .info =         snd_p16v_volume_info,
827         .get =          snd_p16v_volume_get_analog_center_lfe,
828         .put =          snd_p16v_volume_put_analog_center_lfe
829 };
830
831 static struct snd_kcontrol_new snd_p16v_volume_control_analog_unknown =
832 {
833         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
834         .name =         "HD Analog Unknown Playback Volume",
835         .info =         snd_p16v_volume_info,
836         .get =          snd_p16v_volume_get_analog_unknown,
837         .put =          snd_p16v_volume_put_analog_unknown
838 };
839
840 static struct snd_kcontrol_new snd_p16v_volume_control_analog_rear =
841 {
842         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
843         .name =         "HD Analog Rear Playback Volume",
844         .info =         snd_p16v_volume_info,
845         .get =          snd_p16v_volume_get_analog_rear,
846         .put =          snd_p16v_volume_put_analog_rear
847 };
848
849 static struct snd_kcontrol_new snd_p16v_volume_control_spdif_front =
850 {
851         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
852         .name =         "HD SPDIF Front Playback Volume",
853         .info =         snd_p16v_volume_info,
854         .get =          snd_p16v_volume_get_spdif_front,
855         .put =          snd_p16v_volume_put_spdif_front
856 };
857
858 static struct snd_kcontrol_new snd_p16v_volume_control_spdif_center_lfe =
859 {
860         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
861         .name =         "HD SPDIF Center/LFE Playback Volume",
862         .info =         snd_p16v_volume_info,
863         .get =          snd_p16v_volume_get_spdif_center_lfe,
864         .put =          snd_p16v_volume_put_spdif_center_lfe
865 };
866
867 static struct snd_kcontrol_new snd_p16v_volume_control_spdif_unknown =
868 {
869         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
870         .name =         "HD SPDIF Unknown Playback Volume",
871         .info =         snd_p16v_volume_info,
872         .get =          snd_p16v_volume_get_spdif_unknown,
873         .put =          snd_p16v_volume_put_spdif_unknown
874 };
875
876 static struct snd_kcontrol_new snd_p16v_volume_control_spdif_rear =
877 {
878         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
879         .name =         "HD SPDIF Rear Playback Volume",
880         .info =         snd_p16v_volume_info,
881         .get =          snd_p16v_volume_get_spdif_rear,
882         .put =          snd_p16v_volume_put_spdif_rear
883 };
884
885 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
886 {
887         static char *texts[8] = { "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S", "CDIF", "FX", "AC97" };
888
889         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
890         uinfo->count = 1;
891         uinfo->value.enumerated.items = 8;
892         if (uinfo->value.enumerated.item > 7)
893                 uinfo->value.enumerated.item = 7;
894         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
895         return 0;
896 }
897
898 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
899                                         struct snd_ctl_elem_value *ucontrol)
900 {
901         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
902
903         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
904         return 0;
905 }
906
907 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
908                                         struct snd_ctl_elem_value *ucontrol)
909 {
910         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
911         unsigned int val;
912         int change = 0;
913         u32 mask;
914         u32 source;
915
916         val = ucontrol->value.enumerated.item[0] ;
917         change = (emu->p16v_capture_source != val);
918         if (change) {
919                 emu->p16v_capture_source = val;
920                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
921                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
922                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
923         }
924         return change;
925 }
926
927 static struct snd_kcontrol_new snd_p16v_capture_source __devinitdata =
928 {
929         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
930         .name =         "HD source Capture",
931         .info =         snd_p16v_capture_source_info,
932         .get =          snd_p16v_capture_source_get,
933         .put =          snd_p16v_capture_source_put
934 };
935
936 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
937 {
938         static char *texts[4] = { "0", "1", "2", "3",  };
939
940         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
941         uinfo->count = 1;
942         uinfo->value.enumerated.items = 4;
943         if (uinfo->value.enumerated.item > 3)
944                 uinfo->value.enumerated.item = 3;
945         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
946         return 0;
947 }
948
949 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
950                                         struct snd_ctl_elem_value *ucontrol)
951 {
952         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
953
954         ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
955         return 0;
956 }
957
958 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
959                                         struct snd_ctl_elem_value *ucontrol)
960 {
961         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
962         unsigned int val;
963         int change = 0;
964         u32 tmp;
965
966         val = ucontrol->value.enumerated.item[0] ;
967         change = (emu->p16v_capture_channel != val);
968         if (change) {
969                 emu->p16v_capture_channel = val;
970                 tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
971                 snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
972         }
973         return change;
974 }
975
976 static struct snd_kcontrol_new snd_p16v_capture_channel __devinitdata =
977 {
978         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
979         .name =         "HD channel Capture",
980         .info =         snd_p16v_capture_channel_info,
981         .get =          snd_p16v_capture_channel_get,
982         .put =          snd_p16v_capture_channel_put
983 };
984
985 int snd_p16v_mixer(struct snd_emu10k1 *emu)
986 {
987         int err;
988         struct snd_kcontrol *kctl;
989         struct snd_card *card = emu->card;
990         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_front, emu)) == NULL)
991                 return -ENOMEM;
992         if ((err = snd_ctl_add(card, kctl)))
993                 return err;
994         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_rear, emu)) == NULL)
995                 return -ENOMEM;
996         if ((err = snd_ctl_add(card, kctl)))
997                 return err;
998         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_center_lfe, emu)) == NULL)
999                 return -ENOMEM;
1000         if ((err = snd_ctl_add(card, kctl)))
1001                 return err;
1002         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_unknown, emu)) == NULL)
1003                 return -ENOMEM;
1004         if ((err = snd_ctl_add(card, kctl)))
1005                 return err;
1006         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_front, emu)) == NULL)
1007                 return -ENOMEM;
1008         if ((err = snd_ctl_add(card, kctl)))
1009                 return err;
1010         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_rear, emu)) == NULL)
1011                 return -ENOMEM;
1012         if ((err = snd_ctl_add(card, kctl)))
1013                 return err;
1014         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_center_lfe, emu)) == NULL)
1015                 return -ENOMEM;
1016         if ((err = snd_ctl_add(card, kctl)))
1017                 return err;
1018         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_unknown, emu)) == NULL)
1019                 return -ENOMEM;
1020         if ((err = snd_ctl_add(card, kctl)))
1021                 return err;
1022         if ((kctl = snd_ctl_new1(&snd_p16v_capture_source, emu)) == NULL)
1023                 return -ENOMEM;
1024         if ((err = snd_ctl_add(card, kctl)))
1025                 return err;
1026         if ((kctl = snd_ctl_new1(&snd_p16v_capture_channel, emu)) == NULL)
1027                 return -ENOMEM;
1028         if ((err = snd_ctl_add(card, kctl)))
1029                 return err;
1030         return 0;
1031 }
1032