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p16v.c
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1 /*
2  * Copyright (c) by James Courtier-Dutton <[email protected]>
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 <[email protected]>
74  *
75  * This program is free software; you can redistribute it and/or modify
76  * it under the terms of the GNU General Public License as published by
77  * the Free Software Foundation; either version 2 of the License, or
78  * (at your option) any later version.
79  *
80  * This program is distributed in the hope that it will be useful,
81  * but WITHOUT ANY WARRANTY; without even the implied warranty of
82  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
83  * GNU General Public License for more details.
84  *
85  * You should have received a copy of the GNU General Public License
86  * along with this program; if not, write to the Free Software
87  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
88  *
89  */
90 #include <linux/delay.h>
91 #include <linux/init.h>
92 #include <linux/interrupt.h>
93 #include <linux/pci.h>
94 #include <linux/slab.h>
95 #include <linux/vmalloc.h>
96 #include <linux/moduleparam.h>
97 #include <sound/core.h>
98 #include <sound/initval.h>
99 #include <sound/pcm.h>
100 #include <sound/ac97_codec.h>
101 #include <sound/info.h>
102 #include <sound/tlv.h>
103 #include <sound/emu10k1.h>
104 #include "p16v.h"
105 
106 #define SET_CHANNEL 0 /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
107 #define PCM_FRONT_CHANNEL 0
108 #define PCM_REAR_CHANNEL 1
109 #define PCM_CENTER_LFE_CHANNEL 2
110 #define PCM_SIDE_CHANNEL 3
111 #define CONTROL_FRONT_CHANNEL 0
112 #define CONTROL_REAR_CHANNEL 3
113 #define CONTROL_CENTER_LFE_CHANNEL 1
114 #define CONTROL_SIDE_CHANNEL 2
115 
116 /* Card IDs:
117  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
118  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1 Model:SB0240
119  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum Model:SB msb0240230009266
120  * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
121  *
122  */
123 
124  /* hardware definition */
125 static struct snd_pcm_hardware snd_p16v_playback_hw = {
126  .info = SNDRV_PCM_INFO_MMAP |
127  SNDRV_PCM_INFO_INTERLEAVED |
128  SNDRV_PCM_INFO_BLOCK_TRANSFER |
129  SNDRV_PCM_INFO_RESUME |
130  SNDRV_PCM_INFO_MMAP_VALID |
131  SNDRV_PCM_INFO_SYNC_START,
132  .formats = SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
133  .rates = SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
134  .rate_min = 44100,
135  .rate_max = 192000,
136  .channels_min = 8,
137  .channels_max = 8,
138  .buffer_bytes_max = ((65536 - 64) * 8),
139  .period_bytes_min = 64,
140  .period_bytes_max = (65536 - 64),
141  .periods_min = 2,
142  .periods_max = 8,
143  .fifo_size = 0,
144 };
145 
146 static struct snd_pcm_hardware snd_p16v_capture_hw = {
147  .info = (SNDRV_PCM_INFO_MMAP |
148  SNDRV_PCM_INFO_INTERLEAVED |
149  SNDRV_PCM_INFO_BLOCK_TRANSFER |
150  SNDRV_PCM_INFO_RESUME |
151  SNDRV_PCM_INFO_MMAP_VALID),
152  .formats = SNDRV_PCM_FMTBIT_S32_LE,
153  .rates = SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
154  .rate_min = 44100,
155  .rate_max = 192000,
156  .channels_min = 2,
157  .channels_max = 2,
158  .buffer_bytes_max = (65536 - 64),
159  .period_bytes_min = 64,
160  .period_bytes_max = (65536 - 128) >> 1, /* size has to be N*64 bytes */
161  .periods_min = 2,
162  .periods_max = 2,
163  .fifo_size = 0,
164 };
165 
166 static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
167 {
168  struct snd_emu10k1_pcm *epcm = runtime->private_data;
169 
170  if (epcm) {
171  /* snd_printk(KERN_DEBUG "epcm free: %p\n", epcm); */
172  kfree(epcm);
173  }
174 }
175 
176 /* open_playback callback */
177 static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
178 {
179  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
180  struct snd_emu10k1_voice *channel = &(emu->p16v_voices[channel_id]);
181  struct snd_emu10k1_pcm *epcm;
182  struct snd_pcm_runtime *runtime = substream->runtime;
183  int err;
184 
185  epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
186  /* snd_printk(KERN_DEBUG "epcm kcalloc: %p\n", epcm); */
187 
188  if (epcm == NULL)
189  return -ENOMEM;
190  epcm->emu = emu;
191  epcm->substream = substream;
192  /*
193  snd_printk(KERN_DEBUG "epcm device=%d, channel_id=%d\n",
194  substream->pcm->device, channel_id);
195  */
196  runtime->private_data = epcm;
197  runtime->private_free = snd_p16v_pcm_free_substream;
198 
199  runtime->hw = snd_p16v_playback_hw;
200 
201  channel->emu = emu;
202  channel->number = channel_id;
203 
204  channel->use=1;
205 #if 0 /* debug */
206  snd_printk(KERN_DEBUG
207  "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
208  channel_id, channel, channel->use);
209  printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
210  channel_id, chip, channel);
211 #endif /* debug */
212  /* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
213  channel->epcm = epcm;
214  if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
215  return err;
216 
217  runtime->sync.id32[0] = substream->pcm->card->number;
218  runtime->sync.id32[1] = 'P';
219  runtime->sync.id32[2] = 16;
220  runtime->sync.id32[3] = 'V';
221 
222  return 0;
223 }
224 /* open_capture callback */
225 static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
226 {
227  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
228  struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
229  struct snd_emu10k1_pcm *epcm;
230  struct snd_pcm_runtime *runtime = substream->runtime;
231  int err;
232 
233  epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
234  /* snd_printk(KERN_DEBUG "epcm kcalloc: %p\n", epcm); */
235 
236  if (epcm == NULL)
237  return -ENOMEM;
238  epcm->emu = emu;
239  epcm->substream = substream;
240  /*
241  snd_printk(KERN_DEBUG "epcm device=%d, channel_id=%d\n",
242  substream->pcm->device, channel_id);
243  */
244  runtime->private_data = epcm;
245  runtime->private_free = snd_p16v_pcm_free_substream;
246 
247  runtime->hw = snd_p16v_capture_hw;
248 
249  channel->emu = emu;
250  channel->number = channel_id;
251 
252  channel->use=1;
253 #if 0 /* debug */
254  snd_printk(KERN_DEBUG
255  "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
256  channel_id, channel, channel->use);
257  printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
258  channel_id, chip, channel);
259 #endif /* debug */
260  /* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
261  channel->epcm = epcm;
262  if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
263  return err;
264 
265  return 0;
266 }
267 
268 
269 /* close callback */
270 static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
271 {
272  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
273  //struct snd_pcm_runtime *runtime = substream->runtime;
274  //struct snd_emu10k1_pcm *epcm = runtime->private_data;
275  emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use = 0;
276  /* FIXME: maybe zero others */
277  return 0;
278 }
279 
280 /* close callback */
281 static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
282 {
283  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
284  //struct snd_pcm_runtime *runtime = substream->runtime;
285  //struct snd_emu10k1_pcm *epcm = runtime->private_data;
286  emu->p16v_capture_voice.use = 0;
287  /* FIXME: maybe zero others */
288  return 0;
289 }
290 
291 static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
292 {
293  return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
294 }
295 
296 static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
297 {
298  // Only using channel 0 for now, but the card has 2 channels.
299  return snd_p16v_pcm_open_capture_channel(substream, 0);
300 }
301 
302 /* hw_params callback */
303 static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
304  struct snd_pcm_hw_params *hw_params)
305 {
306  int result;
307  result = snd_pcm_lib_malloc_pages(substream,
308  params_buffer_bytes(hw_params));
309  return result;
310 }
311 
312 /* hw_params callback */
313 static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
314  struct snd_pcm_hw_params *hw_params)
315 {
316  int result;
317  result = snd_pcm_lib_malloc_pages(substream,
318  params_buffer_bytes(hw_params));
319  return result;
320 }
321 
322 
323 /* hw_free callback */
324 static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
325 {
326  int result;
327  result = snd_pcm_lib_free_pages(substream);
328  return result;
329 }
330 
331 /* hw_free callback */
332 static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
333 {
334  int result;
335  result = snd_pcm_lib_free_pages(substream);
336  return result;
337 }
338 
339 
340 /* prepare playback callback */
341 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
342 {
343  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
344  struct snd_pcm_runtime *runtime = substream->runtime;
345  int channel = substream->pcm->device - emu->p16v_device_offset;
346  u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
347  u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
348  int i;
349  u32 tmp;
350 
351 #if 0 /* debug */
352  snd_printk(KERN_DEBUG "prepare:channel_number=%d, rate=%d, "
353  "format=0x%x, channels=%d, buffer_size=%ld, "
354  "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
355  channel, runtime->rate, runtime->format, runtime->channels,
356  runtime->buffer_size, runtime->period_size,
357  runtime->periods, frames_to_bytes(runtime, 1));
358  snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
359  runtime->dma_addr, runtime->dma_area, table_base);
360  snd_printk(KERN_DEBUG "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 */
400 static 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  printk(KERN_DEBUG "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 
442 static 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 
453 static 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 */
465 static 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  /* snd_printk(KERN_DEBUG "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  /* snd_printk(KERN_DEBUG "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 */
519 static 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 */
549 static snd_pcm_uframes_t
550 snd_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 */
574 static snd_pcm_uframes_t
575 snd_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  printk(KERN_WARNING "buffer capture limited!\n");
592  }
593  /*
594  printk(KERN_DEBUG "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 */
604 static 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 
615 static 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 
627 int 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  snd_printk(KERN_DEBUG "period lables free: %p\n",
634  &chip->p16v_buffer);
635  */
636  }
637  return 0;
638 }
639 
640 int __devinit snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
641 {
642  struct snd_pcm *pcm;
643  struct snd_pcm_substream *substream;
644  int err;
645  int capture=1;
646 
647  /* snd_printk(KERN_DEBUG "snd_p16v_pcm called. device=%d\n", device); */
648  emu->p16v_device_offset = device;
649  if (rpcm)
650  *rpcm = NULL;
651 
652  if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
653  return err;
654 
655  pcm->private_data = emu;
656  // Single playback 8 channel device.
657  // Single capture 2 channel device.
658  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
659  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
660 
661  pcm->info_flags = 0;
662  pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
663  strcpy(pcm->name, "p16v");
664  emu->pcm_p16v = pcm;
665 
666  for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
667  substream;
668  substream = substream->next) {
669  if ((err = snd_pcm_lib_preallocate_pages(substream,
670  SNDRV_DMA_TYPE_DEV,
671  snd_dma_pci_data(emu->pci),
672  ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0)
673  return err;
674  /*
675  snd_printk(KERN_DEBUG
676  "preallocate playback substream: err=%d\n", err);
677  */
678  }
679 
680  for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
681  substream;
682  substream = substream->next) {
683  if ((err = snd_pcm_lib_preallocate_pages(substream,
684  SNDRV_DMA_TYPE_DEV,
685  snd_dma_pci_data(emu->pci),
686  65536 - 64, 65536 - 64)) < 0)
687  return err;
688  /*
689  snd_printk(KERN_DEBUG
690  "preallocate capture substream: err=%d\n", err);
691  */
692  }
693 
694  if (rpcm)
695  *rpcm = pcm;
696 
697  return 0;
698 }
699 
700 static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
701  struct snd_ctl_elem_info *uinfo)
702 {
703  uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
704  uinfo->count = 2;
705  uinfo->value.integer.min = 0;
706  uinfo->value.integer.max = 255;
707  return 0;
708 }
709 
710 static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
711  struct snd_ctl_elem_value *ucontrol)
712 {
713  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
714  int high_low = (kcontrol->private_value >> 8) & 0xff;
715  int reg = kcontrol->private_value & 0xff;
716  u32 value;
717 
718  value = snd_emu10k1_ptr20_read(emu, reg, high_low);
719  if (high_low) {
720  ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
721  ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
722  } else {
723  ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
724  ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
725  }
726  return 0;
727 }
728 
729 static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
730  struct snd_ctl_elem_value *ucontrol)
731 {
732  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
733  int high_low = (kcontrol->private_value >> 8) & 0xff;
734  int reg = kcontrol->private_value & 0xff;
735  u32 value, oval;
736 
737  oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
738  if (high_low == 1) {
739  value &= 0xffff;
740  value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
741  ((0xff - ucontrol->value.integer.value[1]) << 16);
742  } else {
743  value &= 0xffff0000;
744  value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
745  ((0xff - ucontrol->value.integer.value[1]) );
746  }
747  if (value != oval) {
748  snd_emu10k1_ptr20_write(emu, reg, 0, value);
749  return 1;
750  }
751  return 0;
752 }
753 
754 static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
755  struct snd_ctl_elem_info *uinfo)
756 {
757  static char *texts[8] = {
758  "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
759  "CDIF", "FX", "AC97"
760  };
761 
762  uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
763  uinfo->count = 1;
764  uinfo->value.enumerated.items = 8;
765  if (uinfo->value.enumerated.item > 7)
766  uinfo->value.enumerated.item = 7;
767  strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
768  return 0;
769 }
770 
771 static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
772  struct snd_ctl_elem_value *ucontrol)
773 {
774  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
775 
776  ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
777  return 0;
778 }
779 
780 static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
781  struct snd_ctl_elem_value *ucontrol)
782 {
783  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
784  unsigned int val;
785  int change = 0;
786  u32 mask;
787  u32 source;
788 
789  val = ucontrol->value.enumerated.item[0] ;
790  if (val > 7)
791  return -EINVAL;
792  change = (emu->p16v_capture_source != val);
793  if (change) {
794  emu->p16v_capture_source = val;
795  source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
796  mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
797  snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
798  }
799  return change;
800 }
801 
802 static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
803  struct snd_ctl_elem_info *uinfo)
804 {
805  static char *texts[4] = { "0", "1", "2", "3", };
806 
807  uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
808  uinfo->count = 1;
809  uinfo->value.enumerated.items = 4;
810  if (uinfo->value.enumerated.item > 3)
811  uinfo->value.enumerated.item = 3;
812  strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
813  return 0;
814 }
815 
816 static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
817  struct snd_ctl_elem_value *ucontrol)
818 {
819  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
820 
821  ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
822  return 0;
823 }
824 
825 static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
826  struct snd_ctl_elem_value *ucontrol)
827 {
828  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
829  unsigned int val;
830  int change = 0;
831  u32 tmp;
832 
833  val = ucontrol->value.enumerated.item[0] ;
834  if (val > 3)
835  return -EINVAL;
836  change = (emu->p16v_capture_channel != val);
837  if (change) {
838  emu->p16v_capture_channel = val;
839  tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
840  snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
841  }
842  return change;
843 }
844 static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
845 
846 #define P16V_VOL(xname,xreg,xhl) { \
847  .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
848  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
849  SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
850  .info = snd_p16v_volume_info, \
851  .get = snd_p16v_volume_get, \
852  .put = snd_p16v_volume_put, \
853  .tlv = { .p = snd_p16v_db_scale1 }, \
854  .private_value = ((xreg) | ((xhl) << 8)) \
855 }
856 
857 static struct snd_kcontrol_new p16v_mixer_controls[] __devinitdata = {
858  P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
859  P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
860  P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
861  P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
862  P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
863  P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
864  P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
865  P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
866  {
867  .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
868  .name = "HD source Capture",
869  .info = snd_p16v_capture_source_info,
870  .get = snd_p16v_capture_source_get,
871  .put = snd_p16v_capture_source_put
872  },
873  {
874  .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
875  .name = "HD channel Capture",
876  .info = snd_p16v_capture_channel_info,
877  .get = snd_p16v_capture_channel_get,
878  .put = snd_p16v_capture_channel_put
879  },
880 };
881 
882 
883 int __devinit snd_p16v_mixer(struct snd_emu10k1 *emu)
884 {
885  int i, err;
886  struct snd_card *card = emu->card;
887 
888  for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
889  if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
890  emu))) < 0)
891  return err;
892  }
893  return 0;
894 }
895 
896 #ifdef CONFIG_PM_SLEEP
897 
898 #define NUM_CHS 1 /* up to 4, but only first channel is used */
899 
900 int __devinit snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
901 {
902  emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
903  if (! emu->p16v_saved)
904  return -ENOMEM;
905  return 0;
906 }
907 
908 void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
909 {
910  vfree(emu->p16v_saved);
911 }
912 
913 void snd_p16v_suspend(struct snd_emu10k1 *emu)
914 {
915  int i, ch;
916  unsigned int *val;
917 
918  val = emu->p16v_saved;
919  for (ch = 0; ch < NUM_CHS; ch++)
920  for (i = 0; i < 0x80; i++, val++)
921  *val = snd_emu10k1_ptr20_read(emu, i, ch);
922 }
923 
924 void snd_p16v_resume(struct snd_emu10k1 *emu)
925 {
926  int i, ch;
927  unsigned int *val;
928 
929  val = emu->p16v_saved;
930  for (ch = 0; ch < NUM_CHS; ch++)
931  for (i = 0; i < 0x80; i++, val++)
932  snd_emu10k1_ptr20_write(emu, i, ch, *val);
933 }
934 #endif
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