1 /****************************************************************************
2
3 Copyright Echo Digital Audio Corporation (c) 1998 - 2004
4 All rights reserved
5 www.echoaudio.com
6
7 This file is part of Echo Digital Audio's generic driver library.
8
9 Echo Digital Audio's generic driver library is free software;
10 you can redistribute it and/or modify it under the terms of
11 the GNU General Public License as published by the Free Software
12 Foundation.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 MA 02111-1307, USA.
23
24 *************************************************************************
25
26 Translation from C++ and adaptation for use in ALSA-Driver
27 were made by Giuliano Pochini <pochini@shiny.it>
28
29 ****************************************************************************/
30
31 #ifndef _ECHO_DSP_
32 #define _ECHO_DSP_
33
34
35 /**** Echogals: Darla20, Gina20, Layla20, and Darla24 ****/
36 #if defined(ECHOGALS_FAMILY)
37
38 #define NUM_ASIC_TESTS 5
39 #define READ_DSP_TIMEOUT 1000000L /* one second */
40
41 /**** Echo24: Gina24, Layla24, Mona, Mia, Mia-midi ****/
42 #elif defined(ECHO24_FAMILY)
43
44 #define DSP_56361 /* Some Echo24 cards use the 56361 DSP */
45 #define READ_DSP_TIMEOUT 100000L /* .1 second */
46
47 /**** 3G: Gina3G, Layla3G ****/
48 #elif defined(ECHO3G_FAMILY)
49
50 #define DSP_56361
51 #define READ_DSP_TIMEOUT 100000L /* .1 second */
52 #define MIN_MTC_1X_RATE 32000
53
54 /**** Indigo: Indigo, Indigo IO, Indigo DJ ****/
55 #elif defined(INDIGO_FAMILY)
56
57 #define DSP_56361
58 #define READ_DSP_TIMEOUT 100000L /* .1 second */
59
60 #else
61
62 #error No family is defined
63
64 #endif
65
66
67
68 /*
69 *
70 * Max inputs and outputs
71 *
72 */
73
74 #define DSP_MAXAUDIOINPUTS 16 /* Max audio input channels */
75 #define DSP_MAXAUDIOOUTPUTS 16 /* Max audio output channels */
76 #define DSP_MAXPIPES 32 /* Max total pipes (input + output) */
77
78
79 /*
80 *
81 * These are the offsets for the memory-mapped DSP registers; the DSP base
82 * address is treated as the start of a u32 array.
83 */
84
85 #define CHI32_CONTROL_REG 4
86 #define CHI32_STATUS_REG 5
87 #define CHI32_VECTOR_REG 6
88 #define CHI32_DATA_REG 7
89
90
91 /*
92 *
93 * Interesting bits within the DSP registers
94 *
95 */
96
97 #define CHI32_VECTOR_BUSY 0x00000001
98 #define CHI32_STATUS_REG_HF3 0x00000008
99 #define CHI32_STATUS_REG_HF4 0x00000010
100 #define CHI32_STATUS_REG_HF5 0x00000020
101 #define CHI32_STATUS_HOST_READ_FULL 0x00000004
102 #define CHI32_STATUS_HOST_WRITE_EMPTY 0x00000002
103 #define CHI32_STATUS_IRQ 0x00000040
104
105
106 /*
107 *
108 * DSP commands sent via slave mode; these are sent to the DSP by write_dsp()
109 *
110 */
111
112 #define DSP_FNC_SET_COMMPAGE_ADDR 0x02
113 #define DSP_FNC_LOAD_LAYLA_ASIC 0xa0
114 #define DSP_FNC_LOAD_GINA24_ASIC 0xa0
115 #define DSP_FNC_LOAD_MONA_PCI_CARD_ASIC 0xa0
116 #define DSP_FNC_LOAD_LAYLA24_PCI_CARD_ASIC 0xa0
117 #define DSP_FNC_LOAD_MONA_EXTERNAL_ASIC 0xa1
118 #define DSP_FNC_LOAD_LAYLA24_EXTERNAL_ASIC 0xa1
119 #define DSP_FNC_LOAD_3G_ASIC 0xa0
120
121
122 /*
123 *
124 * Defines to handle the MIDI input state engine; these are used to properly
125 * extract MIDI time code bytes and their timestamps from the MIDI input stream.
126 *
127 */
128
129 #define MIDI_IN_STATE_NORMAL 0
130 #define MIDI_IN_STATE_TS_HIGH 1
131 #define MIDI_IN_STATE_TS_LOW 2
132 #define MIDI_IN_STATE_F1_DATA 3
133 #define MIDI_IN_SKIP_DATA (-1)
134
135
136 /*----------------------------------------------------------------------------
137
138 Setting the sample rates on Layla24 is somewhat schizophrenic.
139
140 For standard rates, it works exactly like Mona and Gina24. That is, for
141 8, 11.025, 16, 22.05, 32, 44.1, 48, 88.2, and 96 kHz, you just set the
142 appropriate bits in the control register and write the control register.
143
144 In order to support MIDI time code sync (and possibly SMPTE LTC sync in
145 the future), Layla24 also has "continuous sample rate mode". In this mode,
146 Layla24 can generate any sample rate between 25 and 50 kHz inclusive, or
147 50 to 100 kHz inclusive for double speed mode.
148
149 To use continuous mode:
150
151 -Set the clock select bits in the control register to 0xe (see the #define
152 below)
153
154 -Set double-speed mode if you want to use sample rates above 50 kHz
155
156 -Write the control register as you would normally
157
158 -Now, you need to set the frequency register. First, you need to determine the
159 value for the frequency register. This is given by the following formula:
160
161 frequency_reg = (LAYLA24_MAGIC_NUMBER / sample_rate) - 2
162
163 Note the #define below for the magic number
164
165 -Wait for the DSP handshake
166 -Write the frequency_reg value to the .SampleRate field of the comm page
167 -Send the vector command SET_LAYLA24_FREQUENCY_REG (see vmonkey.h)
168
169 Once you have set the control register up for continuous mode, you can just
170 write the frequency register to change the sample rate. This could be
171 used for MIDI time code sync. For MTC sync, the control register is set for
172 continuous mode. The driver then just keeps writing the
173 SET_LAYLA24_FREQUENCY_REG command.
174
175 -----------------------------------------------------------------------------*/
176
177 #define LAYLA24_MAGIC_NUMBER 677376000
178 #define LAYLA24_CONTINUOUS_CLOCK 0x000e
179
180
181 /*
182 *
183 * DSP vector commands
184 *
185 */
186
187 #define DSP_VC_RESET 0x80ff
188
189 #ifndef DSP_56361
190
191 #define DSP_VC_ACK_INT 0x8073
192 #define DSP_VC_SET_VMIXER_GAIN 0x0000 /* Not used, only for compile */
193 #define DSP_VC_START_TRANSFER 0x0075 /* Handshke rqd. */
194 #define DSP_VC_METERS_ON 0x0079
195 #define DSP_VC_METERS_OFF 0x007b
196 #define DSP_VC_UPDATE_OUTVOL 0x007d /* Handshke rqd. */
197 #define DSP_VC_UPDATE_INGAIN 0x007f /* Handshke rqd. */
198 #define DSP_VC_ADD_AUDIO_BUFFER 0x0081 /* Handshke rqd. */
199 #define DSP_VC_TEST_ASIC 0x00eb
200 #define DSP_VC_UPDATE_CLOCKS 0x00ef /* Handshke rqd. */
201 #define DSP_VC_SET_LAYLA_SAMPLE_RATE 0x00f1 /* Handshke rqd. */
202 #define DSP_VC_SET_GD_AUDIO_STATE 0x00f1 /* Handshke rqd. */
203 #define DSP_VC_WRITE_CONTROL_REG 0x00f1 /* Handshke rqd. */
204 #define DSP_VC_MIDI_WRITE 0x00f5 /* Handshke rqd. */
205 #define DSP_VC_STOP_TRANSFER 0x00f7 /* Handshke rqd. */
206 #define DSP_VC_UPDATE_FLAGS 0x00fd /* Handshke rqd. */
207 #define DSP_VC_GO_COMATOSE 0x00f9
208
209 #else /* !DSP_56361 */
210
211 /* Vector commands for families that use either the 56301 or 56361 */
212 #define DSP_VC_ACK_INT 0x80F5
213 #define DSP_VC_SET_VMIXER_GAIN 0x00DB /* Handshke rqd. */
214 #define DSP_VC_START_TRANSFER 0x00DD /* Handshke rqd. */
215 #define DSP_VC_METERS_ON 0x00EF
216 #define DSP_VC_METERS_OFF 0x00F1
217 #define DSP_VC_UPDATE_OUTVOL 0x00E3 /* Handshke rqd. */
218 #define DSP_VC_UPDATE_INGAIN 0x00E5 /* Handshke rqd. */
219 #define DSP_VC_ADD_AUDIO_BUFFER 0x00E1 /* Handshke rqd. */
220 #define DSP_VC_TEST_ASIC 0x00ED
221 #define DSP_VC_UPDATE_CLOCKS 0x00E9 /* Handshke rqd. */
222 #define DSP_VC_SET_LAYLA24_FREQUENCY_REG 0x00E9 /* Handshke rqd. */
223 #define DSP_VC_SET_LAYLA_SAMPLE_RATE 0x00EB /* Handshke rqd. */
224 #define DSP_VC_SET_GD_AUDIO_STATE 0x00EB /* Handshke rqd. */
225 #define DSP_VC_WRITE_CONTROL_REG 0x00EB /* Handshke rqd. */
226 #define DSP_VC_MIDI_WRITE 0x00E7 /* Handshke rqd. */
227 #define DSP_VC_STOP_TRANSFER 0x00DF /* Handshke rqd. */
228 #define DSP_VC_UPDATE_FLAGS 0x00FB /* Handshke rqd. */
229 #define DSP_VC_GO_COMATOSE 0x00d9
230
231 #endif /* !DSP_56361 */
232
233
234 /*
235 *
236 * Timeouts
237 *
238 */
239
240 #define HANDSHAKE_TIMEOUT 20000 /* send_vector command timeout (20ms) */
241 #define VECTOR_BUSY_TIMEOUT 100000 /* 100ms */
242 #define MIDI_OUT_DELAY_USEC 2000 /* How long to wait after MIDI fills up */
243
244
245 /*
246 *
247 * Flags for .Flags field in the comm page
248 *
249 */
250
251 #define DSP_FLAG_MIDI_INPUT 0x0001 /* Enable MIDI input */
252 #define DSP_FLAG_SPDIF_NONAUDIO 0x0002 /* Sets the "non-audio" bit
253 * in the S/PDIF out status
254 * bits. Clear this flag for
255 * audio data;
256 * set it for AC3 or WMA or
257 * some such */
258 #define DSP_FLAG_PROFESSIONAL_SPDIF 0x0008 /* 1 Professional, 0 Consumer */
259
260
261 /*
262 *
263 * Clock detect bits reported by the DSP for Gina20, Layla20, Darla24, and Mia
264 *
265 */
266
267 #define GLDM_CLOCK_DETECT_BIT_WORD 0x0002
268 #define GLDM_CLOCK_DETECT_BIT_SUPER 0x0004
269 #define GLDM_CLOCK_DETECT_BIT_SPDIF 0x0008
270 #define GLDM_CLOCK_DETECT_BIT_ESYNC 0x0010
271
272
273 /*
274 *
275 * Clock detect bits reported by the DSP for Gina24, Mona, and Layla24
276 *
277 */
278
279 #define GML_CLOCK_DETECT_BIT_WORD96 0x0002
280 #define GML_CLOCK_DETECT_BIT_WORD48 0x0004
281 #define GML_CLOCK_DETECT_BIT_SPDIF48 0x0008
282 #define GML_CLOCK_DETECT_BIT_SPDIF96 0x0010
283 #define GML_CLOCK_DETECT_BIT_WORD (GML_CLOCK_DETECT_BIT_WORD96 | GML_CLOCK_DETECT_BIT_WORD48)
284 #define GML_CLOCK_DETECT_BIT_SPDIF (GML_CLOCK_DETECT_BIT_SPDIF48 | GML_CLOCK_DETECT_BIT_SPDIF96)
285 #define GML_CLOCK_DETECT_BIT_ESYNC 0x0020
286 #define GML_CLOCK_DETECT_BIT_ADAT 0x0040
287
288
289 /*
290 *
291 * Layla clock numbers to send to DSP
292 *
293 */
294
295 #define LAYLA20_CLOCK_INTERNAL 0
296 #define LAYLA20_CLOCK_SPDIF 1
297 #define LAYLA20_CLOCK_WORD 2
298 #define LAYLA20_CLOCK_SUPER 3
299
300
301 /*
302 *
303 * Gina/Darla clock states
304 *
305 */
306
307 #define GD_CLOCK_NOCHANGE 0
308 #define GD_CLOCK_44 1
309 #define GD_CLOCK_48 2
310 #define GD_CLOCK_SPDIFIN 3
311 #define GD_CLOCK_UNDEF 0xff
312
313
314 /*
315 *
316 * Gina/Darla S/PDIF status bits
317 *
318 */
319
320 #define GD_SPDIF_STATUS_NOCHANGE 0
321 #define GD_SPDIF_STATUS_44 1
322 #define GD_SPDIF_STATUS_48 2
323 #define GD_SPDIF_STATUS_UNDEF 0xff
324
325
326 /*
327 *
328 * Layla20 output clocks
329 *
330 */
331
332 #define LAYLA20_OUTPUT_CLOCK_SUPER 0
333 #define LAYLA20_OUTPUT_CLOCK_WORD 1
334
335
336 /****************************************************************************
337
338 Magic constants for the Darla24 hardware
339
340 ****************************************************************************/
341
342 #define GD24_96000 0x0
343 #define GD24_48000 0x1
344 #define GD24_44100 0x2
345 #define GD24_32000 0x3
346 #define GD24_22050 0x4
347 #define GD24_16000 0x5
348 #define GD24_11025 0x6
349 #define GD24_8000 0x7
350 #define GD24_88200 0x8
351 #define GD24_EXT_SYNC 0x9
352
353
354 /*
355 *
356 * Return values from the DSP when ASIC is loaded
357 *
358 */
359
360 #define ASIC_ALREADY_LOADED 0x1
361 #define ASIC_NOT_LOADED 0x0
362
363
364 /*
365 *
366 * DSP Audio formats
367 *
368 * These are the audio formats that the DSP can transfer
369 * via input and output pipes. LE means little-endian,
370 * BE means big-endian.
371 *
372 * DSP_AUDIOFORM_MS_8
373 *
374 * 8-bit mono unsigned samples. For playback,
375 * mono data is duplicated out the left and right channels
376 * of the output bus. The "MS" part of the name
377 * means mono->stereo.
378 *
379 * DSP_AUDIOFORM_MS_16LE
380 *
381 * 16-bit signed little-endian mono samples. Playback works
382 * like the previous code.
383 *
384 * DSP_AUDIOFORM_MS_24LE
385 *
386 * 24-bit signed little-endian mono samples. Data is packed
387 * three bytes per sample; if you had two samples 0x112233 and 0x445566
388 * they would be stored in memory like this: 33 22 11 66 55 44.
389 *
390 * DSP_AUDIOFORM_MS_32LE
391 *
392 * 24-bit signed little-endian mono samples in a 32-bit
393 * container. In other words, each sample is a 32-bit signed
394 * integer, where the actual audio data is left-justified
395 * in the 32 bits and only the 24 most significant bits are valid.
396 *
397 * DSP_AUDIOFORM_SS_8
398 * DSP_AUDIOFORM_SS_16LE
399 * DSP_AUDIOFORM_SS_24LE
400 * DSP_AUDIOFORM_SS_32LE
401 *
402 * Like the previous ones, except now with stereo interleaved
403 * data. "SS" means stereo->stereo.
404 *
405 * DSP_AUDIOFORM_MM_32LE
406 *
407 * Similar to DSP_AUDIOFORM_MS_32LE, except that the mono
408 * data is not duplicated out both the left and right outputs.
409 * This mode is used by the ASIO driver. Here, "MM" means
410 * mono->mono.
411 *
412 * DSP_AUDIOFORM_MM_32BE
413 *
414 * Just like DSP_AUDIOFORM_MM_32LE, but now the data is
415 * in big-endian format.
416 *
417 */
418
419 #define DSP_AUDIOFORM_MS_8 0 /* 8 bit mono */
420 #define DSP_AUDIOFORM_MS_16LE 1 /* 16 bit mono */
421 #define DSP_AUDIOFORM_MS_24LE 2 /* 24 bit mono */
422 #define DSP_AUDIOFORM_MS_32LE 3 /* 32 bit mono */
423 #define DSP_AUDIOFORM_SS_8 4 /* 8 bit stereo */
424 #define DSP_AUDIOFORM_SS_16LE 5 /* 16 bit stereo */
425 #define DSP_AUDIOFORM_SS_24LE 6 /* 24 bit stereo */
426 #define DSP_AUDIOFORM_SS_32LE 7 /* 32 bit stereo */
427 #define DSP_AUDIOFORM_MM_32LE 8 /* 32 bit mono->mono little-endian */
428 #define DSP_AUDIOFORM_MM_32BE 9 /* 32 bit mono->mono big-endian */
429 #define DSP_AUDIOFORM_SS_32BE 10 /* 32 bit stereo big endian */
430 #define DSP_AUDIOFORM_INVALID 0xFF /* Invalid audio format */
431
432
433 /*
434 *
435 * Super-interleave is defined as interleaving by 4 or more. Darla20 and Gina20
436 * do not support super interleave.
437 *
438 * 16 bit, 24 bit, and 32 bit little endian samples are supported for super
439 * interleave. The interleave factor must be even. 16 - way interleave is the
440 * current maximum, so you can interleave by 4, 6, 8, 10, 12, 14, and 16.
441 *
442 * The actual format code is derived by taking the define below and or-ing with
443 * the interleave factor. So, 32 bit interleave by 6 is 0x86 and
444 * 16 bit interleave by 16 is (0x40 | 0x10) = 0x50.
445 *
446 */
447
448 #define DSP_AUDIOFORM_SUPER_INTERLEAVE_16LE 0x40
449 #define DSP_AUDIOFORM_SUPER_INTERLEAVE_24LE 0xc0
450 #define DSP_AUDIOFORM_SUPER_INTERLEAVE_32LE 0x80
451
452
453 /*
454 *
455 * Gina24, Mona, and Layla24 control register defines
456 *
457 */
458
459 #define GML_CONVERTER_ENABLE 0x0010
460 #define GML_SPDIF_PRO_MODE 0x0020 /* Professional S/PDIF == 1,
461 consumer == 0 */
462 #define GML_SPDIF_SAMPLE_RATE0 0x0040
463 #define GML_SPDIF_SAMPLE_RATE1 0x0080
464 #define GML_SPDIF_TWO_CHANNEL 0x0100 /* 1 == two channels,
465 0 == one channel */
466 #define GML_SPDIF_NOT_AUDIO 0x0200
467 #define GML_SPDIF_COPY_PERMIT 0x0400
468 #define GML_SPDIF_24_BIT 0x0800 /* 1 == 24 bit, 0 == 20 bit */
469 #define GML_ADAT_MODE 0x1000 /* 1 == ADAT mode, 0 == S/PDIF mode */
470 #define GML_SPDIF_OPTICAL_MODE 0x2000 /* 1 == optical mode, 0 == RCA mode */
471 #define GML_SPDIF_CDROM_MODE 0x3000 /* 1 == CDROM mode,
472 * 0 == RCA or optical mode */
473 #define GML_DOUBLE_SPEED_MODE 0x4000 /* 1 == double speed,
474 0 == single speed */
475
476 #define GML_DIGITAL_IN_AUTO_MUTE 0x800000
477
478 #define GML_96KHZ (0x0 | GML_DOUBLE_SPEED_MODE)
479 #define GML_88KHZ (0x1 | GML_DOUBLE_SPEED_MODE)
480 #define GML_48KHZ 0x2
481 #define GML_44KHZ 0x3
482 #define GML_32KHZ 0x4
483 #define GML_22KHZ 0x5
484 #define GML_16KHZ 0x6
485 #define GML_11KHZ 0x7
486 #define GML_8KHZ 0x8
487 #define GML_SPDIF_CLOCK 0x9
488 #define GML_ADAT_CLOCK 0xA
489 #define GML_WORD_CLOCK 0xB
490 #define GML_ESYNC_CLOCK 0xC
491 #define GML_ESYNCx2_CLOCK 0xD
492
493 #define GML_CLOCK_CLEAR_MASK 0xffffbff0
494 #define GML_SPDIF_RATE_CLEAR_MASK (~(GML_SPDIF_SAMPLE_RATE0|GML_SPDIF_SAMPLE_RATE1))
495 #define GML_DIGITAL_MODE_CLEAR_MASK 0xffffcfff
496 #define GML_SPDIF_FORMAT_CLEAR_MASK 0xfffff01f
497
498
499 /*
500 *
501 * Mia sample rate and clock setting constants
502 *
503 */
504
505 #define MIA_32000 0x0040
506 #define MIA_44100 0x0042
507 #define MIA_48000 0x0041
508 #define MIA_88200 0x0142
509 #define MIA_96000 0x0141
510
511 #define MIA_SPDIF 0x00000044
512 #define MIA_SPDIF96 0x00000144
513
514 #define MIA_MIDI_REV 1 /* Must be Mia rev 1 for MIDI support */
515
516
517 /*
518 *
519 * 3G register bits
520 *
521 */
522
523 #define E3G_CONVERTER_ENABLE 0x0010
524 #define E3G_SPDIF_PRO_MODE 0x0020 /* Professional S/PDIF == 1,
525 consumer == 0 */
526 #define E3G_SPDIF_SAMPLE_RATE0 0x0040
527 #define E3G_SPDIF_SAMPLE_RATE1 0x0080
528 #define E3G_SPDIF_TWO_CHANNEL 0x0100 /* 1 == two channels,
529 0 == one channel */
530 #define E3G_SPDIF_NOT_AUDIO 0x0200
531 #define E3G_SPDIF_COPY_PERMIT 0x0400
532 #define E3G_SPDIF_24_BIT 0x0800 /* 1 == 24 bit, 0 == 20 bit */
533 #define E3G_DOUBLE_SPEED_MODE 0x4000 /* 1 == double speed,
534 0 == single speed */
535 #define E3G_PHANTOM_POWER 0x8000 /* 1 == phantom power on,
536 0 == phantom power off */
537
538 #define E3G_96KHZ (0x0 | E3G_DOUBLE_SPEED_MODE)
539 #define E3G_88KHZ (0x1 | E3G_DOUBLE_SPEED_MODE)
540 #define E3G_48KHZ 0x2
541 #define E3G_44KHZ 0x3
542 #define E3G_32KHZ 0x4
543 #define E3G_22KHZ 0x5
544 #define E3G_16KHZ 0x6
545 #define E3G_11KHZ 0x7
546 #define E3G_8KHZ 0x8
547 #define E3G_SPDIF_CLOCK 0x9
548 #define E3G_ADAT_CLOCK 0xA
549 #define E3G_WORD_CLOCK 0xB
550 #define E3G_CONTINUOUS_CLOCK 0xE
551
552 #define E3G_ADAT_MODE 0x1000
553 #define E3G_SPDIF_OPTICAL_MODE 0x2000
554
555 #define E3G_CLOCK_CLEAR_MASK 0xbfffbff0
556 #define E3G_DIGITAL_MODE_CLEAR_MASK 0xffffcfff
557 #define E3G_SPDIF_FORMAT_CLEAR_MASK 0xfffff01f
558
559 /* Clock detect bits reported by the DSP */
560 #define E3G_CLOCK_DETECT_BIT_WORD96 0x0001
561 #define E3G_CLOCK_DETECT_BIT_WORD48 0x0002
562 #define E3G_CLOCK_DETECT_BIT_SPDIF48 0x0004
563 #define E3G_CLOCK_DETECT_BIT_ADAT 0x0004
564 #define E3G_CLOCK_DETECT_BIT_SPDIF96 0x0008
565 #define E3G_CLOCK_DETECT_BIT_WORD (E3G_CLOCK_DETECT_BIT_WORD96|E3G_CLOCK_DETECT_BIT_WORD48)
566 #define E3G_CLOCK_DETECT_BIT_SPDIF (E3G_CLOCK_DETECT_BIT_SPDIF48|E3G_CLOCK_DETECT_BIT_SPDIF96)
567
568 /* Frequency control register */
569 #define E3G_MAGIC_NUMBER 677376000
570 #define E3G_FREQ_REG_DEFAULT (E3G_MAGIC_NUMBER / 48000 - 2)
571 #define E3G_FREQ_REG_MAX 0xffff
572
573 /* 3G external box types */
574 #define E3G_GINA3G_BOX_TYPE 0x00
575 #define E3G_LAYLA3G_BOX_TYPE 0x10
576 #define E3G_ASIC_NOT_LOADED 0xffff
577 #define E3G_BOX_TYPE_MASK 0xf0
578
579 /* Indigo express control register values */
580 #define INDIGO_EXPRESS_32000 0x02
581 #define INDIGO_EXPRESS_44100 0x01
582 #define INDIGO_EXPRESS_48000 0x00
583 #define INDIGO_EXPRESS_DOUBLE_SPEED 0x10
584 #define INDIGO_EXPRESS_QUAD_SPEED 0x04
585 #define INDIGO_EXPRESS_CLOCK_MASK 0x17
586
587
588 /*
589 *
590 * Gina20 & Layla20 have input gain controls for the analog inputs;
591 * this is the magic number for the hardware that gives you 0 dB at -10.
592 *
593 */
594
595 #define GL20_INPUT_GAIN_MAGIC_NUMBER 0xC8
596
597
598 /*
599 *
600 * Defines how much time must pass between DSP load attempts
601 *
602 */
603
604 #define DSP_LOAD_ATTEMPT_PERIOD 1000000L /* One second */
605
606
607 /*
608 *
609 * Size of arrays for the comm page. MAX_PLAY_TAPS and MAX_REC_TAPS are
610 * no longer used, but the sizes must still be right for the DSP to see
611 * the comm page correctly.
612 *
613 */
614
615 #define MONITOR_ARRAY_SIZE 0x180
616 #define VMIXER_ARRAY_SIZE 0x40
617 #define MIDI_OUT_BUFFER_SIZE 32
618 #define MIDI_IN_BUFFER_SIZE 256
619 #define MAX_PLAY_TAPS 168
620 #define MAX_REC_TAPS 192
621 #define DSP_MIDI_OUT_FIFO_SIZE 64
622
623
624 /* sg_entry is a single entry for the scatter-gather list. The array of struct
625 sg_entry struct is read by the DSP, so all values must be little-endian. */
626
627 #define MAX_SGLIST_ENTRIES 512
628
629 struct sg_entry {
630 __le32 addr;
631 __le32 size;
632 };
633
634
635 /****************************************************************************
636
637 The comm page. This structure is read and written by the DSP; the
638 DSP code is a firm believer in the byte offsets written in the comments
639 at the end of each line. This structure should not be changed.
640
641 Any reads from or writes to this structure should be in little-endian format.
642
643 ****************************************************************************/
644
645 struct comm_page { /* Base Length*/
646 __le32 comm_size; /* size of this object 0x000 4 */
647 __le32 flags; /* See Appendix A below 0x004 4 */
648 __le32 unused; /* Unused entry 0x008 4 */
649 __le32 sample_rate; /* Card sample rate in Hz 0x00c 4 */
650 __le32 handshake; /* DSP command handshake 0x010 4 */
651 __le32 cmd_start; /* Chs. to start mask 0x014 4 */
652 __le32 cmd_stop; /* Chs. to stop mask 0x018 4 */
653 __le32 cmd_reset; /* Chs. to reset mask 0x01c 4 */
654 __le16 audio_format[DSP_MAXPIPES]; /* Chs. audio format 0x020 32*2 */
655 struct sg_entry sglist_addr[DSP_MAXPIPES];
656 /* Chs. Physical sglist addrs 0x060 32*8 */
657 __le32 position[DSP_MAXPIPES];
658 /* Positions for ea. ch. 0x160 32*4 */
659 s8 vu_meter[DSP_MAXPIPES];
660 /* VU meters 0x1e0 32*1 */
661 s8 peak_meter[DSP_MAXPIPES];
662 /* Peak meters 0x200 32*1 */
663 s8 line_out_level[DSP_MAXAUDIOOUTPUTS];
664 /* Output gain 0x220 16*1 */
665 s8 line_in_level[DSP_MAXAUDIOINPUTS];
666 /* Input gain 0x230 16*1 */
667 s8 monitors[MONITOR_ARRAY_SIZE];
668 /* Monitor map 0x240 0x180 */
669 __le32 play_coeff[MAX_PLAY_TAPS];
670 /* Gina/Darla play filters - obsolete 0x3c0 168*4 */
671 __le32 rec_coeff[MAX_REC_TAPS];
672 /* Gina/Darla record filters - obsolete 0x660 192*4 */
673 __le16 midi_input[MIDI_IN_BUFFER_SIZE];
674 /* MIDI input data transfer buffer 0x960 256*2 */
675 u8 gd_clock_state; /* Chg Gina/Darla clock state 0xb60 1 */
676 u8 gd_spdif_status; /* Chg. Gina/Darla S/PDIF state 0xb61 1 */
677 u8 gd_resampler_state; /* Should always be 3 0xb62 1 */
678 u8 filler2; /* 0xb63 1 */
679 __le32 nominal_level_mask; /* -10 level enable mask 0xb64 4 */
680 __le16 input_clock; /* Chg. Input clock state 0xb68 2 */
681 __le16 output_clock; /* Chg. Output clock state 0xb6a 2 */
682 __le32 status_clocks; /* Current Input clock state 0xb6c 4 */
683 __le32 ext_box_status; /* External box status 0xb70 4 */
684 __le32 cmd_add_buffer; /* Pipes to add (obsolete) 0xb74 4 */
685 __le32 midi_out_free_count;
686 /* # of bytes free in MIDI output FIFO 0xb78 4 */
687 __le32 unused2; /* Cyclic pipes 0xb7c 4 */
688 __le32 control_register;
689 /* Mona, Gina24, Layla24, 3G ctrl reg 0xb80 4 */
690 __le32 e3g_frq_register; /* 3G frequency register 0xb84 4 */
691 u8 filler[24]; /* filler 0xb88 24*1 */
692 s8 vmixer[VMIXER_ARRAY_SIZE];
693 /* Vmixer levels 0xba0 64*1 */
694 u8 midi_output[MIDI_OUT_BUFFER_SIZE];
695 /* MIDI output data 0xbe0 32*1 */
696 };
697
698 #endif /* _ECHO_DSP_ */
699
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