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ca0106_proc.c
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1 /*
2  * Copyright (c) 2004 James Courtier-Dutton <[email protected]>
3  * Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
4  * Version: 0.0.18
5  *
6  * FEATURES currently supported:
7  * See ca0106_main.c for features.
8  *
9  * Changelog:
10  * Support interrupts per period.
11  * Removed noise from Center/LFE channel when in Analog mode.
12  * Rename and remove mixer controls.
13  * 0.0.6
14  * Use separate card based DMA buffer for periods table list.
15  * 0.0.7
16  * Change remove and rename ctrls into lists.
17  * 0.0.8
18  * Try to fix capture sources.
19  * 0.0.9
20  * Fix AC3 output.
21  * Enable S32_LE format support.
22  * 0.0.10
23  * Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
24  * 0.0.11
25  * Add Model name recognition.
26  * 0.0.12
27  * Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
28  * Remove redundent "voice" handling.
29  * 0.0.13
30  * Single trigger call for multi channels.
31  * 0.0.14
32  * Set limits based on what the sound card hardware can do.
33  * playback periods_min=2, periods_max=8
34  * capture hw constraints require period_size = n * 64 bytes.
35  * playback hw constraints require period_size = n * 64 bytes.
36  * 0.0.15
37  * Separate ca0106.c into separate functional .c files.
38  * 0.0.16
39  * Modified Copyright message.
40  * 0.0.17
41  * Add iec958 file in proc file system to show status of SPDIF in.
42  * 0.0.18
43  * Implement support for Line-in capture on SB Live 24bit.
44  *
45  * This code was initially based on code from ALSA's emu10k1x.c which is:
46  * Copyright (c) by Francisco Moraes <[email protected]>
47  *
48  * This program is free software; you can redistribute it and/or modify
49  * it under the terms of the GNU General Public License as published by
50  * the Free Software Foundation; either version 2 of the License, or
51  * (at your option) any later version.
52  *
53  * This program is distributed in the hope that it will be useful,
54  * but WITHOUT ANY WARRANTY; without even the implied warranty of
55  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
56  * GNU General Public License for more details.
57  *
58  * You should have received a copy of the GNU General Public License
59  * along with this program; if not, write to the Free Software
60  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
61  *
62  */
63 #include <linux/delay.h>
64 #include <linux/init.h>
65 #include <linux/interrupt.h>
66 #include <linux/moduleparam.h>
67 #include <sound/core.h>
68 #include <sound/initval.h>
69 #include <sound/pcm.h>
70 #include <sound/ac97_codec.h>
71 #include <sound/info.h>
72 #include <sound/asoundef.h>
73 #include <asm/io.h>
74 
75 #include "ca0106.h"
76 
77 
78 #ifdef CONFIG_PROC_FS
79 
80 struct snd_ca0106_category_str {
81  int val;
82  const char *name;
83 };
84 
85 static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
86  { IEC958_AES1_CON_DAT, "DAT" },
87  { IEC958_AES1_CON_VCR, "VCR" },
88  { IEC958_AES1_CON_MICROPHONE, "microphone" },
89  { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
90  { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
91  { IEC958_AES1_CON_MIXER, "mixer" },
92  { IEC958_AES1_CON_SAMPLER, "sampler" },
93  { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
94  { IEC958_AES1_CON_IEC908_CD, "CD" },
95  { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
96  { IEC958_AES1_CON_GENERAL, "general" },
97 };
98 
99 
100 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
101 {
102  int i;
103  u32 status[4];
104  status[0] = value & 0xff;
105  status[1] = (value >> 8) & 0xff;
106  status[2] = (value >> 16) & 0xff;
107  status[3] = (value >> 24) & 0xff;
108 
109  if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
110  /* consumer */
111  snd_iprintf(buffer, "Mode: consumer\n");
112  snd_iprintf(buffer, "Data: ");
113  if (!(status[0] & IEC958_AES0_NONAUDIO)) {
114  snd_iprintf(buffer, "audio\n");
115  } else {
116  snd_iprintf(buffer, "non-audio\n");
117  }
118  snd_iprintf(buffer, "Rate: ");
119  switch (status[3] & IEC958_AES3_CON_FS) {
120  case IEC958_AES3_CON_FS_44100:
121  snd_iprintf(buffer, "44100 Hz\n");
122  break;
123  case IEC958_AES3_CON_FS_48000:
124  snd_iprintf(buffer, "48000 Hz\n");
125  break;
126  case IEC958_AES3_CON_FS_32000:
127  snd_iprintf(buffer, "32000 Hz\n");
128  break;
129  default:
130  snd_iprintf(buffer, "unknown\n");
131  break;
132  }
133  snd_iprintf(buffer, "Copyright: ");
134  if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
135  snd_iprintf(buffer, "permitted\n");
136  } else {
137  snd_iprintf(buffer, "protected\n");
138  }
139  snd_iprintf(buffer, "Emphasis: ");
140  if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
141  snd_iprintf(buffer, "none\n");
142  } else {
143  snd_iprintf(buffer, "50/15us\n");
144  }
145  snd_iprintf(buffer, "Category: ");
146  for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
147  if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
148  snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
149  break;
150  }
151  }
152  if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
153  snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
154  }
155  snd_iprintf(buffer, "Original: ");
156  if (status[1] & IEC958_AES1_CON_ORIGINAL) {
157  snd_iprintf(buffer, "original\n");
158  } else {
159  snd_iprintf(buffer, "1st generation\n");
160  }
161  snd_iprintf(buffer, "Clock: ");
162  switch (status[3] & IEC958_AES3_CON_CLOCK) {
163  case IEC958_AES3_CON_CLOCK_1000PPM:
164  snd_iprintf(buffer, "1000 ppm\n");
165  break;
166  case IEC958_AES3_CON_CLOCK_50PPM:
167  snd_iprintf(buffer, "50 ppm\n");
168  break;
169  case IEC958_AES3_CON_CLOCK_VARIABLE:
170  snd_iprintf(buffer, "variable pitch\n");
171  break;
172  default:
173  snd_iprintf(buffer, "unknown\n");
174  break;
175  }
176  } else {
177  snd_iprintf(buffer, "Mode: professional\n");
178  snd_iprintf(buffer, "Data: ");
179  if (!(status[0] & IEC958_AES0_NONAUDIO)) {
180  snd_iprintf(buffer, "audio\n");
181  } else {
182  snd_iprintf(buffer, "non-audio\n");
183  }
184  snd_iprintf(buffer, "Rate: ");
185  switch (status[0] & IEC958_AES0_PRO_FS) {
186  case IEC958_AES0_PRO_FS_44100:
187  snd_iprintf(buffer, "44100 Hz\n");
188  break;
189  case IEC958_AES0_PRO_FS_48000:
190  snd_iprintf(buffer, "48000 Hz\n");
191  break;
192  case IEC958_AES0_PRO_FS_32000:
193  snd_iprintf(buffer, "32000 Hz\n");
194  break;
195  default:
196  snd_iprintf(buffer, "unknown\n");
197  break;
198  }
199  snd_iprintf(buffer, "Rate Locked: ");
200  if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
201  snd_iprintf(buffer, "no\n");
202  else
203  snd_iprintf(buffer, "yes\n");
204  snd_iprintf(buffer, "Emphasis: ");
205  switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
206  case IEC958_AES0_PRO_EMPHASIS_CCITT:
207  snd_iprintf(buffer, "CCITT J.17\n");
208  break;
209  case IEC958_AES0_PRO_EMPHASIS_NONE:
210  snd_iprintf(buffer, "none\n");
211  break;
212  case IEC958_AES0_PRO_EMPHASIS_5015:
213  snd_iprintf(buffer, "50/15us\n");
214  break;
215  case IEC958_AES0_PRO_EMPHASIS_NOTID:
216  default:
217  snd_iprintf(buffer, "unknown\n");
218  break;
219  }
220  snd_iprintf(buffer, "Stereophonic: ");
221  if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
222  snd_iprintf(buffer, "stereo\n");
223  } else {
224  snd_iprintf(buffer, "not indicated\n");
225  }
226  snd_iprintf(buffer, "Userbits: ");
227  switch (status[1] & IEC958_AES1_PRO_USERBITS) {
228  case IEC958_AES1_PRO_USERBITS_192:
229  snd_iprintf(buffer, "192bit\n");
230  break;
231  case IEC958_AES1_PRO_USERBITS_UDEF:
232  snd_iprintf(buffer, "user-defined\n");
233  break;
234  default:
235  snd_iprintf(buffer, "unknown\n");
236  break;
237  }
238  snd_iprintf(buffer, "Sample Bits: ");
239  switch (status[2] & IEC958_AES2_PRO_SBITS) {
240  case IEC958_AES2_PRO_SBITS_20:
241  snd_iprintf(buffer, "20 bit\n");
242  break;
243  case IEC958_AES2_PRO_SBITS_24:
244  snd_iprintf(buffer, "24 bit\n");
245  break;
246  case IEC958_AES2_PRO_SBITS_UDEF:
247  snd_iprintf(buffer, "user defined\n");
248  break;
249  default:
250  snd_iprintf(buffer, "unknown\n");
251  break;
252  }
253  snd_iprintf(buffer, "Word Length: ");
254  switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
255  case IEC958_AES2_PRO_WORDLEN_22_18:
256  snd_iprintf(buffer, "22 bit or 18 bit\n");
257  break;
258  case IEC958_AES2_PRO_WORDLEN_23_19:
259  snd_iprintf(buffer, "23 bit or 19 bit\n");
260  break;
261  case IEC958_AES2_PRO_WORDLEN_24_20:
262  snd_iprintf(buffer, "24 bit or 20 bit\n");
263  break;
264  case IEC958_AES2_PRO_WORDLEN_20_16:
265  snd_iprintf(buffer, "20 bit or 16 bit\n");
266  break;
267  default:
268  snd_iprintf(buffer, "unknown\n");
269  break;
270  }
271  }
272 }
273 
274 static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
275  struct snd_info_buffer *buffer)
276 {
277  struct snd_ca0106 *emu = entry->private_data;
278  u32 value;
279 
280  value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
281  snd_iprintf(buffer, "Status: %s, %s, %s\n",
282  (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
283  (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
284  (value & 0x400000) ? "Audio Valid" : "No valid audio" );
285  snd_iprintf(buffer, "Estimated sample rate: %u\n",
286  ((value & 0xfffff) * 48000) / 0x8000 );
287  if (value & 0x200000) {
288  snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
289  value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
290  snd_ca0106_proc_dump_iec958(buffer, value);
291  }
292 
293  snd_iprintf(buffer, "\n");
294 }
295 
296 static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
297  struct snd_info_buffer *buffer)
298 {
299  struct snd_ca0106 *emu = entry->private_data;
300  unsigned long flags;
301  char line[64];
302  u32 reg, val;
303  while (!snd_info_get_line(buffer, line, sizeof(line))) {
304  if (sscanf(line, "%x %x", &reg, &val) != 2)
305  continue;
306  if (reg < 0x40 && val <= 0xffffffff) {
307  spin_lock_irqsave(&emu->emu_lock, flags);
308  outl(val, emu->port + (reg & 0xfffffffc));
309  spin_unlock_irqrestore(&emu->emu_lock, flags);
310  }
311  }
312 }
313 
314 static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
315  struct snd_info_buffer *buffer)
316 {
317  struct snd_ca0106 *emu = entry->private_data;
318  unsigned long value;
319  unsigned long flags;
320  int i;
321  snd_iprintf(buffer, "Registers:\n\n");
322  for(i = 0; i < 0x20; i+=4) {
323  spin_lock_irqsave(&emu->emu_lock, flags);
324  value = inl(emu->port + i);
325  spin_unlock_irqrestore(&emu->emu_lock, flags);
326  snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
327  }
328 }
329 
330 static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
331  struct snd_info_buffer *buffer)
332 {
333  struct snd_ca0106 *emu = entry->private_data;
334  unsigned int value;
335  unsigned long flags;
336  int i;
337  snd_iprintf(buffer, "Registers:\n\n");
338  for(i = 0; i < 0x20; i+=2) {
339  spin_lock_irqsave(&emu->emu_lock, flags);
340  value = inw(emu->port + i);
341  spin_unlock_irqrestore(&emu->emu_lock, flags);
342  snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
343  }
344 }
345 
346 static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry,
347  struct snd_info_buffer *buffer)
348 {
349  struct snd_ca0106 *emu = entry->private_data;
350  unsigned int value;
351  unsigned long flags;
352  int i;
353  snd_iprintf(buffer, "Registers:\n\n");
354  for(i = 0; i < 0x20; i+=1) {
355  spin_lock_irqsave(&emu->emu_lock, flags);
356  value = inb(emu->port + i);
357  spin_unlock_irqrestore(&emu->emu_lock, flags);
358  snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
359  }
360 }
361 
362 static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
363  struct snd_info_buffer *buffer)
364 {
365  struct snd_ca0106 *emu = entry->private_data;
366  unsigned long value;
367  int i,j;
368 
369  snd_iprintf(buffer, "Registers\n");
370  for(i = 0; i < 0x40; i++) {
371  snd_iprintf(buffer, "%02X: ",i);
372  for (j = 0; j < 4; j++) {
373  value = snd_ca0106_ptr_read(emu, i, j);
374  snd_iprintf(buffer, "%08lX ", value);
375  }
376  snd_iprintf(buffer, "\n");
377  }
378 }
379 
380 static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry,
381  struct snd_info_buffer *buffer)
382 {
383  struct snd_ca0106 *emu = entry->private_data;
384  unsigned long value;
385  int i,j;
386 
387  snd_iprintf(buffer, "Registers\n");
388  for(i = 0x40; i < 0x80; i++) {
389  snd_iprintf(buffer, "%02X: ",i);
390  for (j = 0; j < 4; j++) {
391  value = snd_ca0106_ptr_read(emu, i, j);
392  snd_iprintf(buffer, "%08lX ", value);
393  }
394  snd_iprintf(buffer, "\n");
395  }
396 }
397 
398 static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
399  struct snd_info_buffer *buffer)
400 {
401  struct snd_ca0106 *emu = entry->private_data;
402  char line[64];
403  unsigned int reg, channel_id , val;
404  while (!snd_info_get_line(buffer, line, sizeof(line))) {
405  if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
406  continue;
407  if (reg < 0x80 && val <= 0xffffffff && channel_id <= 3)
408  snd_ca0106_ptr_write(emu, reg, channel_id, val);
409  }
410 }
411 
412 static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
413  struct snd_info_buffer *buffer)
414 {
415  struct snd_ca0106 *emu = entry->private_data;
416  char line[64];
417  unsigned int reg, val;
418  while (!snd_info_get_line(buffer, line, sizeof(line))) {
419  if (sscanf(line, "%x %x", &reg, &val) != 2)
420  continue;
421  if ((reg <= 0x7f) || (val <= 0x1ff)) {
422  snd_ca0106_i2c_write(emu, reg, val);
423  }
424  }
425 }
426 
427 int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
428 {
429  struct snd_info_entry *entry;
430 
431  if(! snd_card_proc_new(emu->card, "iec958", &entry))
432  snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
433  if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
434  snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
435  entry->c.text.write = snd_ca0106_proc_reg_write32;
436  entry->mode |= S_IWUSR;
437  }
438  if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
439  snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
440  if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
441  snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
442  if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
443  snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
444  entry->c.text.write = snd_ca0106_proc_reg_write;
445  entry->mode |= S_IWUSR;
446  }
447  if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
448  entry->c.text.write = snd_ca0106_proc_i2c_write;
449  entry->private_data = emu;
450  entry->mode |= S_IWUSR;
451  }
452  if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry))
453  snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
454  return 0;
455 }
456 
457 #endif /* CONFIG_PROC_FS */
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