1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
4 * Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
5 * Version: 0.0.18
6 *
7 * FEATURES currently supported:
8 * See ca0106_main.c for features.
9 *
10 * Changelog:
11 * Support interrupts per period.
12 * Removed noise from Center/LFE channel when in Analog mode.
13 * Rename and remove mixer controls.
14 * 0.0.6
15 * Use separate card based DMA buffer for periods table list.
16 * 0.0.7
17 * Change remove and rename ctrls into lists.
18 * 0.0.8
19 * Try to fix capture sources.
20 * 0.0.9
21 * Fix AC3 output.
22 * Enable S32_LE format support.
23 * 0.0.10
24 * Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
25 * 0.0.11
26 * Add Model name recognition.
27 * 0.0.12
28 * Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
29 * Remove redundent "voice" handling.
30 * 0.0.13
31 * Single trigger call for multi channels.
32 * 0.0.14
33 * Set limits based on what the sound card hardware can do.
34 * playback periods_min=2, periods_max=8
35 * capture hw constraints require period_size = n * 64 bytes.
36 * playback hw constraints require period_size = n * 64 bytes.
37 * 0.0.15
38 * Separate ca0106.c into separate functional .c files.
39 * 0.0.16
40 * Modified Copyright message.
41 * 0.0.17
42 * Add iec958 file in proc file system to show status of SPDIF in.
43 * 0.0.18
44 * Implement support for Line-in capture on SB Live 24bit.
45 *
46 * This code was initially based on code from ALSA's emu10k1x.c which is:
47 * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
48 */
49 #include <linux/delay.h>
50 #include <linux/init.h>
51 #include <linux/interrupt.h>
52 #include <linux/moduleparam.h>
53 #include <linux/io.h>
54 #include <sound/core.h>
55 #include <sound/initval.h>
56 #include <sound/pcm.h>
57 #include <sound/ac97_codec.h>
58 #include <sound/info.h>
59 #include <sound/asoundef.h>
60
61 #include "ca0106.h"
62
63
64 struct snd_ca0106_category_str {
65 int val;
66 const char *name;
67 };
68
69 static const struct snd_ca0106_category_str snd_ca0106_con_category[] = {
70 { IEC958_AES1_CON_DAT, "DAT" },
71 { IEC958_AES1_CON_VCR, "VCR" },
72 { IEC958_AES1_CON_MICROPHONE, "microphone" },
73 { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
74 { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
75 { IEC958_AES1_CON_MIXER, "mixer" },
76 { IEC958_AES1_CON_SAMPLER, "sampler" },
77 { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
78 { IEC958_AES1_CON_IEC908_CD, "CD" },
79 { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
80 { IEC958_AES1_CON_GENERAL, "general" },
81 };
82
83
84 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
85 {
86 int i;
87 u32 status[4];
88 status[0] = value & 0xff;
89 status[1] = (value >> 8) & 0xff;
90 status[2] = (value >> 16) & 0xff;
91 status[3] = (value >> 24) & 0xff;
92
93 if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
94 /* consumer */
95 snd_iprintf(buffer, "Mode: consumer\n");
96 snd_iprintf(buffer, "Data: ");
97 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
98 snd_iprintf(buffer, "audio\n");
99 } else {
100 snd_iprintf(buffer, "non-audio\n");
101 }
102 snd_iprintf(buffer, "Rate: ");
103 switch (status[3] & IEC958_AES3_CON_FS) {
104 case IEC958_AES3_CON_FS_44100:
105 snd_iprintf(buffer, "44100 Hz\n");
106 break;
107 case IEC958_AES3_CON_FS_48000:
108 snd_iprintf(buffer, "48000 Hz\n");
109 break;
110 case IEC958_AES3_CON_FS_32000:
111 snd_iprintf(buffer, "32000 Hz\n");
112 break;
113 default:
114 snd_iprintf(buffer, "unknown\n");
115 break;
116 }
117 snd_iprintf(buffer, "Copyright: ");
118 if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
119 snd_iprintf(buffer, "permitted\n");
120 } else {
121 snd_iprintf(buffer, "protected\n");
122 }
123 snd_iprintf(buffer, "Emphasis: ");
124 if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
125 snd_iprintf(buffer, "none\n");
126 } else {
127 snd_iprintf(buffer, "50/15us\n");
128 }
129 snd_iprintf(buffer, "Category: ");
130 for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
131 if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
132 snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
133 break;
134 }
135 }
136 if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
137 snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
138 }
139 snd_iprintf(buffer, "Original: ");
140 if (status[1] & IEC958_AES1_CON_ORIGINAL) {
141 snd_iprintf(buffer, "original\n");
142 } else {
143 snd_iprintf(buffer, "1st generation\n");
144 }
145 snd_iprintf(buffer, "Clock: ");
146 switch (status[3] & IEC958_AES3_CON_CLOCK) {
147 case IEC958_AES3_CON_CLOCK_1000PPM:
148 snd_iprintf(buffer, "1000 ppm\n");
149 break;
150 case IEC958_AES3_CON_CLOCK_50PPM:
151 snd_iprintf(buffer, "50 ppm\n");
152 break;
153 case IEC958_AES3_CON_CLOCK_VARIABLE:
154 snd_iprintf(buffer, "variable pitch\n");
155 break;
156 default:
157 snd_iprintf(buffer, "unknown\n");
158 break;
159 }
160 } else {
161 snd_iprintf(buffer, "Mode: professional\n");
162 snd_iprintf(buffer, "Data: ");
163 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
164 snd_iprintf(buffer, "audio\n");
165 } else {
166 snd_iprintf(buffer, "non-audio\n");
167 }
168 snd_iprintf(buffer, "Rate: ");
169 switch (status[0] & IEC958_AES0_PRO_FS) {
170 case IEC958_AES0_PRO_FS_44100:
171 snd_iprintf(buffer, "44100 Hz\n");
172 break;
173 case IEC958_AES0_PRO_FS_48000:
174 snd_iprintf(buffer, "48000 Hz\n");
175 break;
176 case IEC958_AES0_PRO_FS_32000:
177 snd_iprintf(buffer, "32000 Hz\n");
178 break;
179 default:
180 snd_iprintf(buffer, "unknown\n");
181 break;
182 }
183 snd_iprintf(buffer, "Rate Locked: ");
184 if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
185 snd_iprintf(buffer, "no\n");
186 else
187 snd_iprintf(buffer, "yes\n");
188 snd_iprintf(buffer, "Emphasis: ");
189 switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
190 case IEC958_AES0_PRO_EMPHASIS_CCITT:
191 snd_iprintf(buffer, "CCITT J.17\n");
192 break;
193 case IEC958_AES0_PRO_EMPHASIS_NONE:
194 snd_iprintf(buffer, "none\n");
195 break;
196 case IEC958_AES0_PRO_EMPHASIS_5015:
197 snd_iprintf(buffer, "50/15us\n");
198 break;
199 case IEC958_AES0_PRO_EMPHASIS_NOTID:
200 default:
201 snd_iprintf(buffer, "unknown\n");
202 break;
203 }
204 snd_iprintf(buffer, "Stereophonic: ");
205 if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
206 snd_iprintf(buffer, "stereo\n");
207 } else {
208 snd_iprintf(buffer, "not indicated\n");
209 }
210 snd_iprintf(buffer, "Userbits: ");
211 switch (status[1] & IEC958_AES1_PRO_USERBITS) {
212 case IEC958_AES1_PRO_USERBITS_192:
213 snd_iprintf(buffer, "192bit\n");
214 break;
215 case IEC958_AES1_PRO_USERBITS_UDEF:
216 snd_iprintf(buffer, "user-defined\n");
217 break;
218 default:
219 snd_iprintf(buffer, "unknown\n");
220 break;
221 }
222 snd_iprintf(buffer, "Sample Bits: ");
223 switch (status[2] & IEC958_AES2_PRO_SBITS) {
224 case IEC958_AES2_PRO_SBITS_20:
225 snd_iprintf(buffer, "20 bit\n");
226 break;
227 case IEC958_AES2_PRO_SBITS_24:
228 snd_iprintf(buffer, "24 bit\n");
229 break;
230 case IEC958_AES2_PRO_SBITS_UDEF:
231 snd_iprintf(buffer, "user defined\n");
232 break;
233 default:
234 snd_iprintf(buffer, "unknown\n");
235 break;
236 }
237 snd_iprintf(buffer, "Word Length: ");
238 switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
239 case IEC958_AES2_PRO_WORDLEN_22_18:
240 snd_iprintf(buffer, "22 bit or 18 bit\n");
241 break;
242 case IEC958_AES2_PRO_WORDLEN_23_19:
243 snd_iprintf(buffer, "23 bit or 19 bit\n");
244 break;
245 case IEC958_AES2_PRO_WORDLEN_24_20:
246 snd_iprintf(buffer, "24 bit or 20 bit\n");
247 break;
248 case IEC958_AES2_PRO_WORDLEN_20_16:
249 snd_iprintf(buffer, "20 bit or 16 bit\n");
250 break;
251 default:
252 snd_iprintf(buffer, "unknown\n");
253 break;
254 }
255 }
256 }
257
258 static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
259 struct snd_info_buffer *buffer)
260 {
261 struct snd_ca0106 *emu = entry->private_data;
262 u32 value;
263
264 value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
265 snd_iprintf(buffer, "Status: %s, %s, %s\n",
266 (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
267 (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
268 (value & 0x400000) ? "Audio Valid" : "No valid audio" );
269 snd_iprintf(buffer, "Estimated sample rate: %u\n",
270 ((value & 0xfffff) * 48000) / 0x8000 );
271 if (value & 0x200000) {
272 snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
273 value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
274 snd_ca0106_proc_dump_iec958(buffer, value);
275 }
276
277 snd_iprintf(buffer, "\n");
278 }
279
280 static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
281 struct snd_info_buffer *buffer)
282 {
283 struct snd_ca0106 *emu = entry->private_data;
284 unsigned long flags;
285 char line[64];
286 u32 reg, val;
287 while (!snd_info_get_line(buffer, line, sizeof(line))) {
288 if (sscanf(line, "%x %x", ®, &val) != 2)
289 continue;
290 if (reg < 0x40 && val <= 0xffffffff) {
291 spin_lock_irqsave(&emu->emu_lock, flags);
292 outl(val, emu->port + (reg & 0xfffffffc));
293 spin_unlock_irqrestore(&emu->emu_lock, flags);
294 }
295 }
296 }
297
298 static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
299 struct snd_info_buffer *buffer)
300 {
301 struct snd_ca0106 *emu = entry->private_data;
302 unsigned long value;
303 unsigned long flags;
304 int i;
305 snd_iprintf(buffer, "Registers:\n\n");
306 for(i = 0; i < 0x20; i+=4) {
307 spin_lock_irqsave(&emu->emu_lock, flags);
308 value = inl(emu->port + i);
309 spin_unlock_irqrestore(&emu->emu_lock, flags);
310 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
311 }
312 }
313
314 static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
315 struct snd_info_buffer *buffer)
316 {
317 struct snd_ca0106 *emu = entry->private_data;
318 unsigned int value;
319 unsigned long flags;
320 int i;
321 snd_iprintf(buffer, "Registers:\n\n");
322 for(i = 0; i < 0x20; i+=2) {
323 spin_lock_irqsave(&emu->emu_lock, flags);
324 value = inw(emu->port + i);
325 spin_unlock_irqrestore(&emu->emu_lock, flags);
326 snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
327 }
328 }
329
330 static void snd_ca0106_proc_reg_read8(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+=1) {
339 spin_lock_irqsave(&emu->emu_lock, flags);
340 value = inb(emu->port + i);
341 spin_unlock_irqrestore(&emu->emu_lock, flags);
342 snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
343 }
344 }
345
346 static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
347 struct snd_info_buffer *buffer)
348 {
349 struct snd_ca0106 *emu = entry->private_data;
350 unsigned long value;
351 int i,j;
352
353 snd_iprintf(buffer, "Registers\n");
354 for(i = 0; i < 0x40; i++) {
355 snd_iprintf(buffer, "%02X: ",i);
356 for (j = 0; j < 4; j++) {
357 value = snd_ca0106_ptr_read(emu, i, j);
358 snd_iprintf(buffer, "%08lX ", value);
359 }
360 snd_iprintf(buffer, "\n");
361 }
362 }
363
364 static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry,
365 struct snd_info_buffer *buffer)
366 {
367 struct snd_ca0106 *emu = entry->private_data;
368 unsigned long value;
369 int i,j;
370
371 snd_iprintf(buffer, "Registers\n");
372 for(i = 0x40; i < 0x80; i++) {
373 snd_iprintf(buffer, "%02X: ",i);
374 for (j = 0; j < 4; j++) {
375 value = snd_ca0106_ptr_read(emu, i, j);
376 snd_iprintf(buffer, "%08lX ", value);
377 }
378 snd_iprintf(buffer, "\n");
379 }
380 }
381
382 static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
383 struct snd_info_buffer *buffer)
384 {
385 struct snd_ca0106 *emu = entry->private_data;
386 char line[64];
387 unsigned int reg, channel_id , val;
388 while (!snd_info_get_line(buffer, line, sizeof(line))) {
389 if (sscanf(line, "%x %x %x", ®, &channel_id, &val) != 3)
390 continue;
391 if (reg < 0x80 && val <= 0xffffffff && channel_id <= 3)
392 snd_ca0106_ptr_write(emu, reg, channel_id, val);
393 }
394 }
395
396 static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
397 struct snd_info_buffer *buffer)
398 {
399 struct snd_ca0106 *emu = entry->private_data;
400 char line[64];
401 unsigned int reg, val;
402 while (!snd_info_get_line(buffer, line, sizeof(line))) {
403 if (sscanf(line, "%x %x", ®, &val) != 2)
404 continue;
405 if ((reg <= 0x7f) || (val <= 0x1ff)) {
406 snd_ca0106_i2c_write(emu, reg, val);
407 }
408 }
409 }
410
411 int snd_ca0106_proc_init(struct snd_ca0106 *emu)
412 {
413 snd_card_ro_proc_new(emu->card, "iec958", emu, snd_ca0106_proc_iec958);
414 snd_card_rw_proc_new(emu->card, "ca0106_reg32", emu,
415 snd_ca0106_proc_reg_read32,
416 snd_ca0106_proc_reg_write32);
417 snd_card_ro_proc_new(emu->card, "ca0106_reg16", emu,
418 snd_ca0106_proc_reg_read16);
419 snd_card_ro_proc_new(emu->card, "ca0106_reg8", emu,
420 snd_ca0106_proc_reg_read8);
421 snd_card_rw_proc_new(emu->card, "ca0106_regs1", emu,
422 snd_ca0106_proc_reg_read1,
423 snd_ca0106_proc_reg_write);
424 snd_card_rw_proc_new(emu->card, "ca0106_i2c", emu, NULL,
425 snd_ca0106_proc_i2c_write);
426 snd_card_ro_proc_new(emu->card, "ca0106_regs2", emu,
427 snd_ca0106_proc_reg_read2);
428 return 0;
429 }
430
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.