dd6ce9927e10ef07c488cfd5d49b4364827f23b2
[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: 0.22
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  *
45  *
46  *  BUGS:
47  *    Some stability problems when unloading the snd-p16v kernel module.
48  *    --
49  *
50  *  TODO:
51  *    SPDIF out.
52  *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
53  *    Currently capture fixed at 48000Hz.
54  *
55  *    --
56  *  GENERAL INFO:
57  *    Model: SB0240
58  *    P16V Chip: CA0151-DBS
59  *    Audigy 2 Chip: CA0102-IAT
60  *    AC97 Codec: STAC 9721
61  *    ADC: Philips 1361T (Stereo 24bit)
62  *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
63  *
64  *  This code was initally based on code from ALSA's emu10k1x.c which is:
65  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
66  *
67  *   This program is free software; you can redistribute it and/or modify
68  *   it under the terms of the GNU General Public License as published by
69  *   the Free Software Foundation; either version 2 of the License, or
70  *   (at your option) any later version.
71  *
72  *   This program is distributed in the hope that it will be useful,
73  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
74  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
75  *   GNU General Public License for more details.
76  *
77  *   You should have received a copy of the GNU General Public License
78  *   along with this program; if not, write to the Free Software
79  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
80  *
81  */
82 #include <sound/driver.h>
83 #include <linux/delay.h>
84 #include <linux/init.h>
85 #include <linux/interrupt.h>
86 #include <linux/pci.h>
87 #include <linux/slab.h>
88 #include <linux/moduleparam.h>
89 #include <sound/core.h>
90 #include <sound/initval.h>
91 #include <sound/pcm.h>
92 #include <sound/ac97_codec.h>
93 #include <sound/info.h>
94 #include <sound/emu10k1.h>
95 #include "p16v.h"
96
97 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
98 #define PCM_FRONT_CHANNEL 0
99 #define PCM_REAR_CHANNEL 1
100 #define PCM_CENTER_LFE_CHANNEL 2
101 #define PCM_UNKNOWN_CHANNEL 3
102 #define CONTROL_FRONT_CHANNEL 0
103 #define CONTROL_REAR_CHANNEL 3
104 #define CONTROL_CENTER_LFE_CHANNEL 1
105 #define CONTROL_UNKNOWN_CHANNEL 2
106
107 /* Card IDs:
108  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
109  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
110  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
111  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
112  *
113  */
114
115  /* hardware definition */
116 static snd_pcm_hardware_t snd_p16v_playback_hw = {
117         .info =                 (SNDRV_PCM_INFO_MMAP | 
118                                  SNDRV_PCM_INFO_INTERLEAVED |
119                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
120                                  SNDRV_PCM_INFO_MMAP_VALID),
121         .formats =              SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
122         .rates =                SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 ,
123         .rate_min =             48000,
124         .rate_max =             192000,
125         .channels_min =         8, 
126         .channels_max =         8,
127         .buffer_bytes_max =     (32*1024),
128         .period_bytes_min =     64,
129         .period_bytes_max =     (16*1024),
130         .periods_min =          2,
131         .periods_max =          8,
132         .fifo_size =            0,
133 };
134
135 static snd_pcm_hardware_t snd_p16v_capture_hw = {
136        .info =                 (SNDRV_PCM_INFO_MMAP |
137                                 SNDRV_PCM_INFO_INTERLEAVED |
138                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
139                                 SNDRV_PCM_INFO_MMAP_VALID),
140        .formats =              SNDRV_PCM_FMTBIT_S32_LE,
141        .rates =                SNDRV_PCM_RATE_48000,
142        .rate_min =             48000,
143        .rate_max =             48000,
144        .channels_min =         2,
145        .channels_max =         2,
146        .buffer_bytes_max =     (32*1024),
147        .period_bytes_min =     64,
148        .period_bytes_max =     (16*1024),
149        .periods_min =          2,
150        .periods_max =          2,
151        .fifo_size =            0,
152 };
153
154
155 static void snd_p16v_pcm_free_substream(snd_pcm_runtime_t *runtime)
156 {
157         emu10k1_pcm_t *epcm = runtime->private_data;
158   
159         if (epcm) {
160                 //snd_printk("epcm free: %p\n", epcm);
161                 kfree(epcm);
162         }
163 }
164
165 /* open_playback callback */
166 static int snd_p16v_pcm_open_playback_channel(snd_pcm_substream_t *substream, int channel_id)
167 {
168         emu10k1_t *emu = snd_pcm_substream_chip(substream);
169         emu10k1_voice_t *channel = &(emu->p16v_voices[channel_id]);
170         emu10k1_pcm_t *epcm;
171         snd_pcm_runtime_t *runtime = substream->runtime;
172         int err;
173
174         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
175         //snd_printk("epcm kcalloc: %p\n", epcm);
176
177         if (epcm == NULL)
178                 return -ENOMEM;
179         epcm->emu = emu;
180         epcm->substream = substream;
181         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
182   
183         runtime->private_data = epcm;
184         runtime->private_free = snd_p16v_pcm_free_substream;
185   
186         runtime->hw = snd_p16v_playback_hw;
187
188         channel->emu = emu;
189         channel->number = channel_id;
190
191         channel->use=1;
192         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
193         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
194         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
195         channel->epcm=epcm;
196         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
197                 return err;
198
199         return 0;
200 }
201 /* open_capture callback */
202 static int snd_p16v_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
203 {
204         emu10k1_t *emu = snd_pcm_substream_chip(substream);
205         emu10k1_voice_t *channel = &(emu->p16v_capture_voice);
206         emu10k1_pcm_t *epcm;
207         snd_pcm_runtime_t *runtime = substream->runtime;
208         int err;
209
210         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
211         //snd_printk("epcm kcalloc: %p\n", epcm);
212
213         if (epcm == NULL)
214                 return -ENOMEM;
215         epcm->emu = emu;
216         epcm->substream = substream;
217         //snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);
218
219         runtime->private_data = epcm;
220         runtime->private_free = snd_p16v_pcm_free_substream;
221   
222         runtime->hw = snd_p16v_capture_hw;
223
224         channel->emu = emu;
225         channel->number = channel_id;
226
227         channel->use=1;
228         //snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
229         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
230         //channel->interrupt = snd_p16v_pcm_channel_interrupt;
231         channel->epcm=epcm;
232         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
233                 return err;
234
235         return 0;
236 }
237
238
239 /* close callback */
240 static int snd_p16v_pcm_close_playback(snd_pcm_substream_t *substream)
241 {
242         emu10k1_t *emu = snd_pcm_substream_chip(substream);
243         //snd_pcm_runtime_t *runtime = substream->runtime;
244         //emu10k1_pcm_t *epcm = runtime->private_data;
245         emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use=0;
246         /* FIXME: maybe zero others */
247         return 0;
248 }
249
250 /* close callback */
251 static int snd_p16v_pcm_close_capture(snd_pcm_substream_t *substream)
252 {
253         emu10k1_t *emu = snd_pcm_substream_chip(substream);
254         //snd_pcm_runtime_t *runtime = substream->runtime;
255         //emu10k1_pcm_t *epcm = runtime->private_data;
256         emu->p16v_capture_voice.use=0;
257         /* FIXME: maybe zero others */
258         return 0;
259 }
260
261 static int snd_p16v_pcm_open_playback_front(snd_pcm_substream_t *substream)
262 {
263         return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
264 }
265
266 static int snd_p16v_pcm_open_capture(snd_pcm_substream_t *substream)
267 {
268         // Only using channel 0 for now, but the card has 2 channels.
269         return snd_p16v_pcm_open_capture_channel(substream, 0);
270 }
271
272 /* hw_params callback */
273 static int snd_p16v_pcm_hw_params_playback(snd_pcm_substream_t *substream,
274                                       snd_pcm_hw_params_t * hw_params)
275 {
276         int result;
277         result = snd_pcm_lib_malloc_pages(substream,
278                                         params_buffer_bytes(hw_params));
279         return result;
280 }
281
282 /* hw_params callback */
283 static int snd_p16v_pcm_hw_params_capture(snd_pcm_substream_t *substream,
284                                       snd_pcm_hw_params_t * hw_params)
285 {
286         int result;
287         result = snd_pcm_lib_malloc_pages(substream,
288                                         params_buffer_bytes(hw_params));
289         return result;
290 }
291
292
293 /* hw_free callback */
294 static int snd_p16v_pcm_hw_free_playback(snd_pcm_substream_t *substream)
295 {
296         int result;
297         result = snd_pcm_lib_free_pages(substream);
298         return result;
299 }
300
301 /* hw_free callback */
302 static int snd_p16v_pcm_hw_free_capture(snd_pcm_substream_t *substream)
303 {
304         int result;
305         result = snd_pcm_lib_free_pages(substream);
306         return result;
307 }
308
309
310 /* prepare playback callback */
311 static int snd_p16v_pcm_prepare_playback(snd_pcm_substream_t *substream)
312 {
313         emu10k1_t *emu = snd_pcm_substream_chip(substream);
314         snd_pcm_runtime_t *runtime = substream->runtime;
315         int channel = substream->pcm->device - emu->p16v_device_offset;
316         u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
317         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
318         int i;
319         u32 tmp;
320         
321         //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));
322         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
323         //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);
324         tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
325         switch (runtime->rate) {
326         case 44100:
327           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe000) | 0x8000); /* FIXME: This will change the capture rate as well! */
328           break;
329         case 48000:
330           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe000) | 0x0000); /* FIXME: This will change the capture rate as well! */
331           break;
332         case 96000:
333           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe000) | 0x4000); /* FIXME: This will change the capture rate as well! */
334           break;
335         case 192000:
336           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe000) | 0x2000); /* FIXME: This will change the capture rate as well! */
337           break;
338         default:
339           snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, 0x0000); /* FIXME: This will change the capture rate as well! */
340           break;
341         }
342         /* FIXME: Check emu->buffer.size before actually writing to it. */
343         for(i=0; i < runtime->periods; i++) {
344                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
345                 table_base[(i*2)+1]=period_size_bytes<<16;
346         }
347  
348         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
349         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
350         snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
351         snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
352         snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
353         snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
354         snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
355         snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);
356
357         return 0;
358 }
359
360 /* prepare capture callback */
361 static int snd_p16v_pcm_prepare_capture(snd_pcm_substream_t *substream)
362 {
363         emu10k1_t *emu = snd_pcm_substream_chip(substream);
364         snd_pcm_runtime_t *runtime = substream->runtime;
365         int channel = substream->pcm->device - emu->p16v_device_offset;
366         //printk("prepare: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));
367         snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
368         snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
369         snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
370         snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
371         //snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
372         //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
373
374         return 0;
375 }
376
377 static void snd_p16v_intr_enable(emu10k1_t *emu, unsigned int intrenb)
378 {
379         unsigned long flags;
380         unsigned int enable;
381
382         spin_lock_irqsave(&emu->emu_lock, flags);
383         enable = inl(emu->port + INTE2) | intrenb;
384         outl(enable, emu->port + INTE2);
385         spin_unlock_irqrestore(&emu->emu_lock, flags);
386 }
387
388 static void snd_p16v_intr_disable(emu10k1_t *emu, unsigned int intrenb)
389 {
390         unsigned long flags;
391         unsigned int disable;
392
393         spin_lock_irqsave(&emu->emu_lock, flags);
394         disable = inl(emu->port + INTE2) & (~intrenb);
395         outl(disable, emu->port + INTE2);
396         spin_unlock_irqrestore(&emu->emu_lock, flags);
397 }
398
399 /* trigger_playback callback */
400 static int snd_p16v_pcm_trigger_playback(snd_pcm_substream_t *substream,
401                                     int cmd)
402 {
403         emu10k1_t *emu = snd_pcm_substream_chip(substream);
404         snd_pcm_runtime_t *runtime;
405         emu10k1_pcm_t *epcm;
406         int channel;
407         int result = 0;
408         struct list_head *pos;
409         snd_pcm_substream_t *s;
410         u32 basic = 0;
411         u32 inte = 0;
412         int running=0;
413
414         switch (cmd) {
415         case SNDRV_PCM_TRIGGER_START:
416                 running=1;
417                 break;
418         case SNDRV_PCM_TRIGGER_STOP:
419         default:
420                 running=0;
421                 break;
422         }
423         snd_pcm_group_for_each(pos, substream) {
424                 s = snd_pcm_group_substream_entry(pos);
425                 runtime = s->runtime;
426                 epcm = runtime->private_data;
427                 channel = substream->pcm->device-emu->p16v_device_offset;
428                 //snd_printk("p16v channel=%d\n",channel);
429                 epcm->running = running;
430                 basic |= (0x1<<channel);
431                 inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
432                 snd_pcm_trigger_done(s, substream);
433         }
434         //snd_printk("basic=0x%x, inte=0x%x\n",basic, inte);
435
436         switch (cmd) {
437         case SNDRV_PCM_TRIGGER_START:
438                 snd_p16v_intr_enable(emu, inte);
439                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
440                 break;
441         case SNDRV_PCM_TRIGGER_STOP:
442                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
443                 snd_p16v_intr_disable(emu, inte);
444                 break;
445         default:
446                 result = -EINVAL;
447                 break;
448         }
449         return result;
450 }
451
452 /* trigger_capture callback */
453 static int snd_p16v_pcm_trigger_capture(snd_pcm_substream_t *substream,
454                                    int cmd)
455 {
456         emu10k1_t *emu = snd_pcm_substream_chip(substream);
457         snd_pcm_runtime_t *runtime = substream->runtime;
458         emu10k1_pcm_t *epcm = runtime->private_data;
459         int channel = 0;
460         int result = 0;
461         u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
462
463         switch (cmd) {
464         case SNDRV_PCM_TRIGGER_START:
465                 snd_p16v_intr_enable(emu, inte);
466                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
467                 epcm->running = 1;
468                 break;
469         case SNDRV_PCM_TRIGGER_STOP:
470                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
471                 snd_p16v_intr_disable(emu, inte);
472                 //snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
473                 epcm->running = 0;
474                 break;
475         default:
476                 result = -EINVAL;
477                 break;
478         }
479         return result;
480 }
481
482 /* pointer_playback callback */
483 static snd_pcm_uframes_t
484 snd_p16v_pcm_pointer_playback(snd_pcm_substream_t *substream)
485 {
486         emu10k1_t *emu = snd_pcm_substream_chip(substream);
487         snd_pcm_runtime_t *runtime = substream->runtime;
488         emu10k1_pcm_t *epcm = runtime->private_data;
489         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
490         int channel = substream->pcm->device - emu->p16v_device_offset;
491         if (!epcm->running)
492                 return 0;
493
494         ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
495         ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
496         ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
497         if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
498         ptr2 = bytes_to_frames(runtime, ptr1);
499         ptr2+= (ptr4 >> 3) * runtime->period_size;
500         ptr=ptr2;
501         if (ptr >= runtime->buffer_size)
502                 ptr -= runtime->buffer_size;
503
504         return ptr;
505 }
506
507 /* pointer_capture callback */
508 static snd_pcm_uframes_t
509 snd_p16v_pcm_pointer_capture(snd_pcm_substream_t *substream)
510 {
511         emu10k1_t *emu = snd_pcm_substream_chip(substream);
512         snd_pcm_runtime_t *runtime = substream->runtime;
513         emu10k1_pcm_t *epcm = runtime->private_data;
514         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
515         int channel = 0;
516
517         if (!epcm->running)
518                 return 0;
519
520         ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
521         ptr2 = bytes_to_frames(runtime, ptr1);
522         ptr=ptr2;
523         if (ptr >= runtime->buffer_size) {
524                 ptr -= runtime->buffer_size;
525                 printk("buffer capture limited!\n");
526         }
527         //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);
528
529         return ptr;
530 }
531
532 /* operators */
533 static snd_pcm_ops_t snd_p16v_playback_front_ops = {
534         .open =        snd_p16v_pcm_open_playback_front,
535         .close =       snd_p16v_pcm_close_playback,
536         .ioctl =       snd_pcm_lib_ioctl,
537         .hw_params =   snd_p16v_pcm_hw_params_playback,
538         .hw_free =     snd_p16v_pcm_hw_free_playback,
539         .prepare =     snd_p16v_pcm_prepare_playback,
540         .trigger =     snd_p16v_pcm_trigger_playback,
541         .pointer =     snd_p16v_pcm_pointer_playback,
542 };
543
544 static snd_pcm_ops_t snd_p16v_capture_ops = {
545         .open =        snd_p16v_pcm_open_capture,
546         .close =       snd_p16v_pcm_close_capture,
547         .ioctl =       snd_pcm_lib_ioctl,
548         .hw_params =   snd_p16v_pcm_hw_params_capture,
549         .hw_free =     snd_p16v_pcm_hw_free_capture,
550         .prepare =     snd_p16v_pcm_prepare_capture,
551         .trigger =     snd_p16v_pcm_trigger_capture,
552         .pointer =     snd_p16v_pcm_pointer_capture,
553 };
554
555
556 int snd_p16v_free(emu10k1_t *chip)
557 {
558         // release the data
559         if (chip->p16v_buffer.area) {
560                 snd_dma_free_pages(&chip->p16v_buffer);
561                 //snd_printk("period lables free: %p\n", &chip->p16v_buffer);
562         }
563         return 0;
564 }
565
566 static void snd_p16v_pcm_free(snd_pcm_t *pcm)
567 {
568         emu10k1_t *emu = pcm->private_data;
569         //snd_printk("snd_p16v_pcm_free pcm: called\n");
570         snd_pcm_lib_preallocate_free_for_all(pcm);
571         emu->pcm = NULL;
572 }
573
574 int snd_p16v_pcm(emu10k1_t *emu, int device, snd_pcm_t **rpcm)
575 {
576         snd_pcm_t *pcm;
577         snd_pcm_substream_t *substream;
578         int err;
579         int capture=1;
580   
581         //snd_printk("snd_p16v_pcm called. device=%d\n", device);
582         emu->p16v_device_offset = device;
583         if (rpcm)
584                 *rpcm = NULL;
585
586         if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
587                 return err;
588   
589         pcm->private_data = emu;
590         pcm->private_free = snd_p16v_pcm_free;
591         // Single playback 8 channel device.
592         // Single capture 2 channel device.
593         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
594         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
595
596         pcm->info_flags = 0;
597         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
598         strcpy(pcm->name, "p16v");
599         emu->pcm = pcm;
600
601         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
602             substream; 
603             substream = substream->next) {
604                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
605                                                          SNDRV_DMA_TYPE_DEV, 
606                                                          snd_dma_pci_data(emu->pci), 
607                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
608                         return err;
609                 //snd_printk("preallocate playback substream: err=%d\n", err);
610         }
611
612         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
613               substream; 
614               substream = substream->next) {
615                 if ((err = snd_pcm_lib_preallocate_pages(substream, 
616                                                    SNDRV_DMA_TYPE_DEV, 
617                                                    snd_dma_pci_data(emu->pci), 
618                                                    64*1024, 64*1024)) < 0)
619                         return err;
620                 //snd_printk("preallocate capture substream: err=%d\n", err);
621         }
622   
623         if (rpcm)
624                 *rpcm = pcm;
625   
626         return 0;
627 }
628
629 static int snd_p16v_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
630 {
631         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
632         uinfo->count = 2;
633         uinfo->value.integer.min = 0;
634         uinfo->value.integer.max = 255;
635         return 0;
636 }
637
638 static int snd_p16v_volume_get(snd_kcontrol_t * kcontrol,
639                                        snd_ctl_elem_value_t * ucontrol, int reg, int high_low)
640 {
641         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
642         u32 value;
643
644         value = snd_emu10k1_ptr20_read(emu, reg, high_low);
645         if (high_low == 1) {
646                 ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
647                 ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
648         } else {
649                 ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
650                 ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
651         }
652         return 0;
653 }
654
655 static int snd_p16v_volume_get_spdif_front(snd_kcontrol_t * kcontrol,
656                                        snd_ctl_elem_value_t * ucontrol)
657 {
658         int high_low = 0;
659         int reg = PLAYBACK_VOLUME_MIXER7;
660         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
661 }
662
663 static int snd_p16v_volume_get_spdif_center_lfe(snd_kcontrol_t * kcontrol,
664                                        snd_ctl_elem_value_t * ucontrol)
665 {
666         int high_low = 1;
667         int reg = PLAYBACK_VOLUME_MIXER7;
668         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
669 }
670 static int snd_p16v_volume_get_spdif_unknown(snd_kcontrol_t * kcontrol,
671                                        snd_ctl_elem_value_t * ucontrol)
672 {
673         int high_low = 0;
674         int reg = PLAYBACK_VOLUME_MIXER8;
675         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
676 }
677 static int snd_p16v_volume_get_spdif_rear(snd_kcontrol_t * kcontrol,
678                                        snd_ctl_elem_value_t * ucontrol)
679 {
680         int high_low = 1;
681         int reg = PLAYBACK_VOLUME_MIXER8;
682         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
683 }
684
685 static int snd_p16v_volume_get_analog_front(snd_kcontrol_t * kcontrol,
686                                        snd_ctl_elem_value_t * ucontrol)
687 {
688         int high_low = 0;
689         int reg = PLAYBACK_VOLUME_MIXER9;
690         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
691 }
692
693 static int snd_p16v_volume_get_analog_center_lfe(snd_kcontrol_t * kcontrol,
694                                        snd_ctl_elem_value_t * ucontrol)
695 {
696         int high_low = 1;
697         int reg = PLAYBACK_VOLUME_MIXER9;
698         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
699 }
700 static int snd_p16v_volume_get_analog_rear(snd_kcontrol_t * kcontrol,
701                                        snd_ctl_elem_value_t * ucontrol)
702 {
703         int high_low = 1;
704         int reg = PLAYBACK_VOLUME_MIXER10;
705         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
706 }
707
708 static int snd_p16v_volume_get_analog_unknown(snd_kcontrol_t * kcontrol,
709                                        snd_ctl_elem_value_t * ucontrol)
710 {
711         int high_low = 0;
712         int reg = PLAYBACK_VOLUME_MIXER10;
713         return snd_p16v_volume_get(kcontrol, ucontrol, reg, high_low);
714 }
715
716 static int snd_p16v_volume_put(snd_kcontrol_t * kcontrol,
717                                        snd_ctl_elem_value_t * ucontrol, int reg, int high_low)
718 {
719         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
720         u32 value;
721         value = snd_emu10k1_ptr20_read(emu, reg, 0);
722         //value = value & 0xffff;
723         if (high_low == 1) {
724                 value &= 0xffff;
725                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 24) | ((0xff - ucontrol->value.integer.value[1]) << 16);
726         } else {
727                 value &= 0xffff0000;
728                 value = value | ((0xff - ucontrol->value.integer.value[0]) << 8) | ((0xff - ucontrol->value.integer.value[1]) );
729         }
730                 snd_emu10k1_ptr20_write(emu, reg, 0, value);
731         return 1;
732 }
733
734 static int snd_p16v_volume_put_spdif_front(snd_kcontrol_t * kcontrol,
735                                        snd_ctl_elem_value_t * ucontrol)
736 {
737         int high_low = 0;
738         int reg = PLAYBACK_VOLUME_MIXER7;
739         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
740 }
741
742 static int snd_p16v_volume_put_spdif_center_lfe(snd_kcontrol_t * kcontrol,
743                                        snd_ctl_elem_value_t * ucontrol)
744 {
745         int high_low = 1;
746         int reg = PLAYBACK_VOLUME_MIXER7;
747         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
748 }
749
750 static int snd_p16v_volume_put_spdif_unknown(snd_kcontrol_t * kcontrol,
751                                        snd_ctl_elem_value_t * ucontrol)
752 {
753         int high_low = 0;
754         int reg = PLAYBACK_VOLUME_MIXER8;
755         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
756 }
757
758 static int snd_p16v_volume_put_spdif_rear(snd_kcontrol_t * kcontrol,
759                                        snd_ctl_elem_value_t * ucontrol)
760 {
761         int high_low = 1;
762         int reg = PLAYBACK_VOLUME_MIXER8;
763         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
764 }
765
766 static int snd_p16v_volume_put_analog_front(snd_kcontrol_t * kcontrol,
767                                        snd_ctl_elem_value_t * ucontrol)
768 {
769         int high_low = 0;
770         int reg = PLAYBACK_VOLUME_MIXER9;
771         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
772 }
773
774 static int snd_p16v_volume_put_analog_center_lfe(snd_kcontrol_t * kcontrol,
775                                        snd_ctl_elem_value_t * ucontrol)
776 {
777         int high_low = 1;
778         int reg = PLAYBACK_VOLUME_MIXER9;
779         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
780 }
781
782 static int snd_p16v_volume_put_analog_rear(snd_kcontrol_t * kcontrol,
783                                        snd_ctl_elem_value_t * ucontrol)
784 {
785         int high_low = 1;
786         int reg = PLAYBACK_VOLUME_MIXER10;
787         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
788 }
789
790 static int snd_p16v_volume_put_analog_unknown(snd_kcontrol_t * kcontrol,
791                                        snd_ctl_elem_value_t * ucontrol)
792 {
793         int high_low = 0;
794         int reg = PLAYBACK_VOLUME_MIXER10;
795         return snd_p16v_volume_put(kcontrol, ucontrol, reg, high_low);
796 }
797
798 static snd_kcontrol_new_t snd_p16v_volume_control_analog_front =
799 {
800         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
801         .name =         "HD Analog Front Volume",
802         .info =         snd_p16v_volume_info,
803         .get =          snd_p16v_volume_get_analog_front,
804         .put =          snd_p16v_volume_put_analog_front
805 };
806
807 static snd_kcontrol_new_t snd_p16v_volume_control_analog_center_lfe =
808 {
809         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
810         .name =         "HD Analog Center/LFE Volume",
811         .info =         snd_p16v_volume_info,
812         .get =          snd_p16v_volume_get_analog_center_lfe,
813         .put =          snd_p16v_volume_put_analog_center_lfe
814 };
815
816 static snd_kcontrol_new_t snd_p16v_volume_control_analog_unknown =
817 {
818         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
819         .name =         "HD Analog Unknown Volume",
820         .info =         snd_p16v_volume_info,
821         .get =          snd_p16v_volume_get_analog_unknown,
822         .put =          snd_p16v_volume_put_analog_unknown
823 };
824
825 static snd_kcontrol_new_t snd_p16v_volume_control_analog_rear =
826 {
827         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
828         .name =         "HD Analog Rear Volume",
829         .info =         snd_p16v_volume_info,
830         .get =          snd_p16v_volume_get_analog_rear,
831         .put =          snd_p16v_volume_put_analog_rear
832 };
833
834 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_front =
835 {
836         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
837         .name =         "HD SPDIF Front Volume",
838         .info =         snd_p16v_volume_info,
839         .get =          snd_p16v_volume_get_spdif_front,
840         .put =          snd_p16v_volume_put_spdif_front
841 };
842
843 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_center_lfe =
844 {
845         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
846         .name =         "HD SPDIF Center/LFE Volume",
847         .info =         snd_p16v_volume_info,
848         .get =          snd_p16v_volume_get_spdif_center_lfe,
849         .put =          snd_p16v_volume_put_spdif_center_lfe
850 };
851
852 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_unknown =
853 {
854         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
855         .name =         "HD SPDIF Unknown Volume",
856         .info =         snd_p16v_volume_info,
857         .get =          snd_p16v_volume_get_spdif_unknown,
858         .put =          snd_p16v_volume_put_spdif_unknown
859 };
860
861 static snd_kcontrol_new_t snd_p16v_volume_control_spdif_rear =
862 {
863         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
864         .name =         "HD SPDIF Rear Volume",
865         .info =         snd_p16v_volume_info,
866         .get =          snd_p16v_volume_get_spdif_rear,
867         .put =          snd_p16v_volume_put_spdif_rear
868 };
869
870 static int snd_p16v_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
871 {
872         static char *texts[8] = { "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S", "CDIF", "FX", "AC97" };
873
874         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
875         uinfo->count = 1;
876         uinfo->value.enumerated.items = 8;
877         if (uinfo->value.enumerated.item > 7)
878                 uinfo->value.enumerated.item = 7;
879         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
880         return 0;
881 }
882
883 static int snd_p16v_capture_source_get(snd_kcontrol_t * kcontrol,
884                                         snd_ctl_elem_value_t * ucontrol)
885 {
886         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
887
888         ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
889         return 0;
890 }
891
892 static int snd_p16v_capture_source_put(snd_kcontrol_t * kcontrol,
893                                         snd_ctl_elem_value_t * ucontrol)
894 {
895         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
896         unsigned int val;
897         int change = 0;
898         u32 mask;
899         u32 source;
900
901         val = ucontrol->value.enumerated.item[0] ;
902         change = (emu->p16v_capture_source != val);
903         if (change) {
904                 emu->p16v_capture_source = val;
905                 source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
906                 mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
907                 snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
908         }
909         return change;
910 }
911
912 static snd_kcontrol_new_t snd_p16v_capture_source __devinitdata =
913 {
914         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
915         .name =         "HD Capture source",
916         .info =         snd_p16v_capture_source_info,
917         .get =          snd_p16v_capture_source_get,
918         .put =          snd_p16v_capture_source_put
919 };
920 int snd_p16v_mixer(emu10k1_t *emu)
921 {
922         int err;
923         snd_kcontrol_t *kctl;
924         snd_card_t *card = emu->card;
925         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_front, emu)) == NULL)
926                 return -ENOMEM;
927         if ((err = snd_ctl_add(card, kctl)))
928                 return err;
929         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_rear, emu)) == NULL)
930                 return -ENOMEM;
931         if ((err = snd_ctl_add(card, kctl)))
932                 return err;
933         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_center_lfe, emu)) == NULL)
934                 return -ENOMEM;
935         if ((err = snd_ctl_add(card, kctl)))
936                 return err;
937         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_analog_unknown, emu)) == NULL)
938                 return -ENOMEM;
939         if ((err = snd_ctl_add(card, kctl)))
940                 return err;
941         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_front, emu)) == NULL)
942                 return -ENOMEM;
943         if ((err = snd_ctl_add(card, kctl)))
944                 return err;
945         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_rear, emu)) == NULL)
946                 return -ENOMEM;
947         if ((err = snd_ctl_add(card, kctl)))
948                 return err;
949         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_center_lfe, emu)) == NULL)
950                 return -ENOMEM;
951         if ((err = snd_ctl_add(card, kctl)))
952                 return err;
953         if ((kctl = snd_ctl_new1(&snd_p16v_volume_control_spdif_unknown, emu)) == NULL)
954                 return -ENOMEM;
955         if ((err = snd_ctl_add(card, kctl)))
956                 return err;
957         if ((kctl = snd_ctl_new1(&snd_p16v_capture_source, emu)) == NULL)
958                 return -ENOMEM;
959         if ((err = snd_ctl_add(card, kctl)))
960                 return err;
961         return 0;
962 }
963