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leds: Fix sparse warnings in leds-h1940 driver
[linux-2.6/mini2440.git] / sound / pci / ca0106 / ca0106_proc.c
blobc62b7d10ec61644c763beb0be0c1a10073aee2b3
1 /*
2 * Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
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 initally based on code from ALSA's emu10k1x.c which is:
46 * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
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/slab.h>
67 #include <linux/moduleparam.h>
68 #include <sound/core.h>
69 #include <sound/initval.h>
70 #include <sound/pcm.h>
71 #include <sound/ac97_codec.h>
72 #include <sound/info.h>
73 #include <sound/asoundef.h>
74 #include <asm/io.h>
75
76 #include "ca0106.h"
77
78
79 #ifdef CONFIG_PROC_FS
80
81 struct snd_ca0106_category_str {
82 int val;
83 const char *name;
84 };
85
86 static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
87 { IEC958_AES1_CON_DAT, "DAT" },
88 { IEC958_AES1_CON_VCR, "VCR" },
89 { IEC958_AES1_CON_MICROPHONE, "microphone" },
90 { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
91 { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
92 { IEC958_AES1_CON_MIXER, "mixer" },
93 { IEC958_AES1_CON_SAMPLER, "sampler" },
94 { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
95 { IEC958_AES1_CON_IEC908_CD, "CD" },
96 { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
97 { IEC958_AES1_CON_GENERAL, "general" },
98 };
99
100
101 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
102 {
103 int i;
104 u32 status[4];
105 status[0] = value & 0xff;
106 status[1] = (value >> 8) & 0xff;
107 status[2] = (value >> 16) & 0xff;
108 status[3] = (value >> 24) & 0xff;
109
110 if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
111 /* consumer */
112 snd_iprintf(buffer, "Mode: consumer\n");
113 snd_iprintf(buffer, "Data: ");
114 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
115 snd_iprintf(buffer, "audio\n");
116 } else {
117 snd_iprintf(buffer, "non-audio\n");
118 }
119 snd_iprintf(buffer, "Rate: ");
120 switch (status[3] & IEC958_AES3_CON_FS) {
121 case IEC958_AES3_CON_FS_44100:
122 snd_iprintf(buffer, "44100 Hz\n");
123 break;
124 case IEC958_AES3_CON_FS_48000:
125 snd_iprintf(buffer, "48000 Hz\n");
126 break;
127 case IEC958_AES3_CON_FS_32000:
128 snd_iprintf(buffer, "32000 Hz\n");
129 break;
130 default:
131 snd_iprintf(buffer, "unknown\n");
132 break;
133 }
134 snd_iprintf(buffer, "Copyright: ");
135 if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
136 snd_iprintf(buffer, "permitted\n");
137 } else {
138 snd_iprintf(buffer, "protected\n");
139 }
140 snd_iprintf(buffer, "Emphasis: ");
141 if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
142 snd_iprintf(buffer, "none\n");
143 } else {
144 snd_iprintf(buffer, "50/15us\n");
145 }
146 snd_iprintf(buffer, "Category: ");
147 for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
148 if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
149 snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
150 break;
151 }
152 }
153 if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
154 snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
155 }
156 snd_iprintf(buffer, "Original: ");
157 if (status[1] & IEC958_AES1_CON_ORIGINAL) {
158 snd_iprintf(buffer, "original\n");
159 } else {
160 snd_iprintf(buffer, "1st generation\n");
161 }
162 snd_iprintf(buffer, "Clock: ");
163 switch (status[3] & IEC958_AES3_CON_CLOCK) {
164 case IEC958_AES3_CON_CLOCK_1000PPM:
165 snd_iprintf(buffer, "1000 ppm\n");
166 break;
167 case IEC958_AES3_CON_CLOCK_50PPM:
168 snd_iprintf(buffer, "50 ppm\n");
169 break;
170 case IEC958_AES3_CON_CLOCK_VARIABLE:
171 snd_iprintf(buffer, "variable pitch\n");
172 break;
173 default:
174 snd_iprintf(buffer, "unknown\n");
175 break;
176 }
177 } else {
178 snd_iprintf(buffer, "Mode: professional\n");
179 snd_iprintf(buffer, "Data: ");
180 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
181 snd_iprintf(buffer, "audio\n");
182 } else {
183 snd_iprintf(buffer, "non-audio\n");
184 }
185 snd_iprintf(buffer, "Rate: ");
186 switch (status[0] & IEC958_AES0_PRO_FS) {
187 case IEC958_AES0_PRO_FS_44100:
188 snd_iprintf(buffer, "44100 Hz\n");
189 break;
190 case IEC958_AES0_PRO_FS_48000:
191 snd_iprintf(buffer, "48000 Hz\n");
192 break;
193 case IEC958_AES0_PRO_FS_32000:
194 snd_iprintf(buffer, "32000 Hz\n");
195 break;
196 default:
197 snd_iprintf(buffer, "unknown\n");
198 break;
199 }
200 snd_iprintf(buffer, "Rate Locked: ");
201 if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
202 snd_iprintf(buffer, "no\n");
203 else
204 snd_iprintf(buffer, "yes\n");
205 snd_iprintf(buffer, "Emphasis: ");
206 switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
207 case IEC958_AES0_PRO_EMPHASIS_CCITT:
208 snd_iprintf(buffer, "CCITT J.17\n");
209 break;
210 case IEC958_AES0_PRO_EMPHASIS_NONE:
211 snd_iprintf(buffer, "none\n");
212 break;
213 case IEC958_AES0_PRO_EMPHASIS_5015:
214 snd_iprintf(buffer, "50/15us\n");
215 break;
216 case IEC958_AES0_PRO_EMPHASIS_NOTID:
217 default:
218 snd_iprintf(buffer, "unknown\n");
219 break;
220 }
221 snd_iprintf(buffer, "Stereophonic: ");
222 if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
223 snd_iprintf(buffer, "stereo\n");
224 } else {
225 snd_iprintf(buffer, "not indicated\n");
226 }
227 snd_iprintf(buffer, "Userbits: ");
228 switch (status[1] & IEC958_AES1_PRO_USERBITS) {
229 case IEC958_AES1_PRO_USERBITS_192:
230 snd_iprintf(buffer, "192bit\n");
231 break;
232 case IEC958_AES1_PRO_USERBITS_UDEF:
233 snd_iprintf(buffer, "user-defined\n");
234 break;
235 default:
236 snd_iprintf(buffer, "unkown\n");
237 break;
238 }
239 snd_iprintf(buffer, "Sample Bits: ");
240 switch (status[2] & IEC958_AES2_PRO_SBITS) {
241 case IEC958_AES2_PRO_SBITS_20:
242 snd_iprintf(buffer, "20 bit\n");
243 break;
244 case IEC958_AES2_PRO_SBITS_24:
245 snd_iprintf(buffer, "24 bit\n");
246 break;
247 case IEC958_AES2_PRO_SBITS_UDEF:
248 snd_iprintf(buffer, "user defined\n");
249 break;
250 default:
251 snd_iprintf(buffer, "unknown\n");
252 break;
253 }
254 snd_iprintf(buffer, "Word Length: ");
255 switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
256 case IEC958_AES2_PRO_WORDLEN_22_18:
257 snd_iprintf(buffer, "22 bit or 18 bit\n");
258 break;
259 case IEC958_AES2_PRO_WORDLEN_23_19:
260 snd_iprintf(buffer, "23 bit or 19 bit\n");
261 break;
262 case IEC958_AES2_PRO_WORDLEN_24_20:
263 snd_iprintf(buffer, "24 bit or 20 bit\n");
264 break;
265 case IEC958_AES2_PRO_WORDLEN_20_16:
266 snd_iprintf(buffer, "20 bit or 16 bit\n");
267 break;
268 default:
269 snd_iprintf(buffer, "unknown\n");
270 break;
271 }
272 }
273 }
274
275 static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
276 struct snd_info_buffer *buffer)
277 {
278 struct snd_ca0106 *emu = entry->private_data;
279 u32 value;
280
281 value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
282 snd_iprintf(buffer, "Status: %s, %s, %s\n",
283 (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
284 (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
285 (value & 0x400000) ? "Audio Valid" : "No valid audio" );
286 snd_iprintf(buffer, "Estimated sample rate: %u\n",
287 ((value & 0xfffff) * 48000) / 0x8000 );
288 if (value & 0x200000) {
289 snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
290 value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
291 snd_ca0106_proc_dump_iec958(buffer, value);
292 }
293
294 snd_iprintf(buffer, "\n");
295 }
296
297 static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
298 struct snd_info_buffer *buffer)
299 {
300 struct snd_ca0106 *emu = entry->private_data;
301 unsigned long flags;
302 char line[64];
303 u32 reg, val;
304 while (!snd_info_get_line(buffer, line, sizeof(line))) {
305 if (sscanf(line, "%x %x", &reg, &val) != 2)
306 continue;
307 if ((reg < 0x40) && (reg >=0) && (val <= 0xffffffff) ) {
308 spin_lock_irqsave(&emu->emu_lock, flags);
309 outl(val, emu->port + (reg & 0xfffffffc));
310 spin_unlock_irqrestore(&emu->emu_lock, flags);
311 }
312 }
313 }
314
315 static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
316 struct snd_info_buffer *buffer)
317 {
318 struct snd_ca0106 *emu = entry->private_data;
319 unsigned long value;
320 unsigned long flags;
321 int i;
322 snd_iprintf(buffer, "Registers:\n\n");
323 for(i = 0; i < 0x20; i+=4) {
324 spin_lock_irqsave(&emu->emu_lock, flags);
325 value = inl(emu->port + i);
326 spin_unlock_irqrestore(&emu->emu_lock, flags);
327 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
328 }
329 }
330
331 static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
332 struct snd_info_buffer *buffer)
333 {
334 struct snd_ca0106 *emu = entry->private_data;
335 unsigned int value;
336 unsigned long flags;
337 int i;
338 snd_iprintf(buffer, "Registers:\n\n");
339 for(i = 0; i < 0x20; i+=2) {
340 spin_lock_irqsave(&emu->emu_lock, flags);
341 value = inw(emu->port + i);
342 spin_unlock_irqrestore(&emu->emu_lock, flags);
343 snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
344 }
345 }
346
347 static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry,
348 struct snd_info_buffer *buffer)
349 {
350 struct snd_ca0106 *emu = entry->private_data;
351 unsigned int value;
352 unsigned long flags;
353 int i;
354 snd_iprintf(buffer, "Registers:\n\n");
355 for(i = 0; i < 0x20; i+=1) {
356 spin_lock_irqsave(&emu->emu_lock, flags);
357 value = inb(emu->port + i);
358 spin_unlock_irqrestore(&emu->emu_lock, flags);
359 snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
360 }
361 }
362
363 static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
364 struct snd_info_buffer *buffer)
365 {
366 struct snd_ca0106 *emu = entry->private_data;
367 unsigned long value;
368 int i,j;
369
370 snd_iprintf(buffer, "Registers\n");
371 for(i = 0; i < 0x40; i++) {
372 snd_iprintf(buffer, "%02X: ",i);
373 for (j = 0; j < 4; j++) {
374 value = snd_ca0106_ptr_read(emu, i, j);
375 snd_iprintf(buffer, "%08lX ", value);
376 }
377 snd_iprintf(buffer, "\n");
378 }
379 }
380
381 static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry,
382 struct snd_info_buffer *buffer)
383 {
384 struct snd_ca0106 *emu = entry->private_data;
385 unsigned long value;
386 int i,j;
387
388 snd_iprintf(buffer, "Registers\n");
389 for(i = 0x40; i < 0x80; i++) {
390 snd_iprintf(buffer, "%02X: ",i);
391 for (j = 0; j < 4; j++) {
392 value = snd_ca0106_ptr_read(emu, i, j);
393 snd_iprintf(buffer, "%08lX ", value);
394 }
395 snd_iprintf(buffer, "\n");
396 }
397 }
398
399 static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
400 struct snd_info_buffer *buffer)
401 {
402 struct snd_ca0106 *emu = entry->private_data;
403 char line[64];
404 unsigned int reg, channel_id , val;
405 while (!snd_info_get_line(buffer, line, sizeof(line))) {
406 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
407 continue;
408 if ((reg < 0x80) && (reg >=0) && (val <= 0xffffffff) && (channel_id >=0) && (channel_id <= 3) )
409 snd_ca0106_ptr_write(emu, reg, channel_id, val);
410 }
411 }
412
413 static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
414 struct snd_info_buffer *buffer)
415 {
416 struct snd_ca0106 *emu = entry->private_data;
417 char line[64];
418 unsigned int reg, val;
419 while (!snd_info_get_line(buffer, line, sizeof(line))) {
420 if (sscanf(line, "%x %x", &reg, &val) != 2)
421 continue;
422 if ((reg <= 0x7f) || (val <= 0x1ff)) {
423 snd_ca0106_i2c_write(emu, reg, val);
424 }
425 }
426 }
427
428 int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
429 {
430 struct snd_info_entry *entry;
431
432 if(! snd_card_proc_new(emu->card, "iec958", &entry))
433 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
434 if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
435 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
436 entry->c.text.write = snd_ca0106_proc_reg_write32;
437 entry->mode |= S_IWUSR;
438 }
439 if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
440 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
441 if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
442 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
443 if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
444 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
445 entry->c.text.write = snd_ca0106_proc_reg_write;
446 entry->mode |= S_IWUSR;
447 }
448 if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
449 entry->c.text.write = snd_ca0106_proc_i2c_write;
450 entry->private_data = emu;
451 entry->mode |= S_IWUSR;
452 }
453 if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry))
454 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
455 return 0;
456 }
457
458 #endif /* CONFIG_PROC_FS */
Support for the Chinese Samsung S3C2440 based development boards