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[linux-2.6-block.git] / sound / oss / sb_ess.c
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1da177e4
LT		 1#undef FKS_LOGGING
2#undef FKS_TEST
3
4/*
5 * tabs should be 4 spaces, in vi(m): set tabstop=4
6 *
7 * TODO: consistency speed calculations!!
8 * cleanup!
9 * ????: Did I break MIDI support?
10 *
11 * History:
12 *
13 * Rolf Fokkens (Dec 20 1998): ES188x recording level support on a per
14 * fokkensr@vertis.nl input basis.
15 * (Dec 24 1998): Recognition of ES1788, ES1887, ES1888,
16 * ES1868, ES1869 and ES1878. Could be used for
17 * specific handling in the future. All except
18 * ES1887 and ES1888 and ES688 are handled like
19 * ES1688.
20 * (Dec 27 1998): RECLEV for all (?) ES1688+ chips. ES188x now
21 * have the "Dec 20" support + RECLEV
22 * (Jan 2 1999): Preparation for Full Duplex. This means
23 * Audio 2 is now used for playback when dma16
24 * is specified. The next step would be to use
25 * Audio 1 and Audio 2 at the same time.
26 * (Jan 9 1999): Put all ESS stuff into sb_ess.[ch], this
27 * includes both the ESS stuff that has been in
28 * sb_*[ch] before I touched it and the ESS support
29 * I added later
30 * (Jan 23 1999): Full Duplex seems to work. I wrote a small
31 * test proggy which works OK. Haven't found
32 * any applications to test it though. So why did
33 * I bother to create it anyway?? :) Just for
34 * fun.
35 * (May 2 1999): I tried to be too smart by "introducing"
36 * ess_calc_best_speed (). The idea was that two
37 * dividers could be used to setup a samplerate,
38 * ess_calc_best_speed () would choose the best.
39 * This works for playback, but results in
40 * recording problems for high samplerates. I
41 * fixed this by removing ess_calc_best_speed ()
42 * and just doing what the documentation says.
43 * Andy Sloane (Jun 4 1999): Stole some code from ALSA to fix the playback
44 * andy@guildsoftware.com speed on ES1869, ES1879, ES1887, and ES1888.
45 * 1879's were previously ignored by this driver;
46 * added (untested) support for those.
47 * Cvetan Ivanov (Oct 27 1999): Fixed ess_dsp_init to call ess_set_dma_hw for
48 * zezo@inet.bg _ALL_ ESS models, not only ES1887
49 *
50 * This files contains ESS chip specifics. It's based on the existing ESS
51 * handling as it resided in sb_common.c, sb_mixer.c and sb_audio.c. This
52 * file adds features like:
53 * - Chip Identification (as shown in /proc/sound)
54 * - RECLEV support for ES1688 and later
55 * - 6 bits playback level support chips later than ES1688
56 * - Recording level support on a per-device basis for ES1887
57 * - Full-Duplex for ES1887
58 *
59 * Full duplex is enabled by specifying dma16. While the normal dma must
60 * be one of 0, 1 or 3, dma16 can be one of 0, 1, 3 or 5. DMA 5 is a 16 bit
61 * DMA channel, while the others are 8 bit..
62 *
63 * ESS detection isn't full proof (yet). If it fails an additional module
64 * parameter esstype can be specified to be one of the following:
65 * -1, 0, 688, 1688, 1868, 1869, 1788, 1887, 1888
66 * -1 means: mimic 2.0 behaviour,
67 * 0 means: auto detect.
68 * others: explicitly specify chip
69 * -1 is default, cause auto detect still doesn't work.
70 */
71
72/*
73 * About the documentation
74 *
75 * I don't know if the chips all are OK, but the documentation is buggy. 'cause
76 * I don't have all the cips myself, there's a lot I cannot verify. I'll try to
77 * keep track of my latest insights about his here. If you have additional info,
78 * please enlighten me (fokkensr@vertis.nl)!
79 *
80 * I had the impression that ES1688 also has 6 bit master volume control. The
81 * documentation about ES1888 (rev C, october '95) claims that ES1888 has
82 * the following features ES1688 doesn't have:
83 * - 6 bit master volume
84 * - Full Duplex
85 * So ES1688 apparently doesn't have 6 bit master volume control, but the
86 * ES1688 does have RECLEV control. Makes me wonder: does ES688 have it too?
87 * Without RECLEV ES688 won't be much fun I guess.
88 *
89 * From the ES1888 (rev C, october '95) documentation I got the impression
90 * that registers 0x68 to 0x6e don't exist which means: no recording volume
91 * controls. To my surprise the ES888 documentation (1/14/96) claims that
92 * ES888 does have these record mixer registers, but that ES1888 doesn't have
93 * 0x69 and 0x6b. So the rest should be there.
94 *
95 * I'm trying to get ES1887 Full Duplex. Audio 2 is playback only, while Audio 2
96 * is both record and playback. I think I should use Audio 2 for all playback.
97 *
98 * The documentation is an adventure: it's close but not fully accurate. I
99 * found out that after a reset some registers are *NOT* reset, though the
d6e05edc
AM		 100 * docs say the would be. Interesting ones are 0x7f, 0x7d and 0x7a. They are
101 * related to the Audio 2 channel. I also was surprised about the consequences
1da177e4
LT		 102 * of writing 0x00 to 0x7f (which should be done by reset): The ES1887 moves
103 * into ES1888 mode. This means that it claims IRQ 11, which happens to be my
104 * ISDN adapter. Needless to say it no longer worked. I now understand why
105 * after rebooting 0x7f already was 0x05, the value of my choice: the BIOS
106 * did it.
107 *
d6e05edc
AM		 108 * Oh, and this is another trap: in ES1887 docs mixer register 0x70 is
109 * described as if it's exactly the same as register 0xa1. This is *NOT* true.
110 * The description of 0x70 in ES1869 docs is accurate however.
1da177e4 111 * Well, the assumption about ES1869 was wrong: register 0x70 is very much
d6e05edc 112 * like register 0xa1, except that bit 7 is always 1, whatever you want
1da177e4
LT		 113 * it to be.
114 *
115 * When using audio 2 mixer register 0x72 seems te be meaningless. Only 0xa2
116 * has effect.
117 *
118 * Software reset not being able to reset all registers is great! Especially
119 * the fact that register 0x78 isn't reset is great when you wanna change back
d6e05edc
AM		 120 * to single dma operation (simplex): audio 2 is still operational, and uses
121 * the same dma as audio 1: your ess changes into a funny echo machine.
1da177e4 122 *
d6e05edc 123 * Received the news that ES1688 is detected as a ES1788. Did some thinking:
1da177e4
LT		 124 * the ES1887 detection scheme suggests in step 2 to try if bit 3 of register
125 * 0x64 can be changed. This is inaccurate, first I inverted the * check: "If
126 * can be modified, it's a 1688", which lead to a correct detection
127 * of my ES1887. It resulted however in bad detection of 1688 (reported by mail)
128 * and 1868 (if no PnP detection first): they result in a 1788 being detected.
129 * I don't have docs on 1688, but I do have docs on 1868: The documentation is
130 * probably inaccurate in the fact that I should check bit 2, not bit 3. This
131 * is what I do now.
132 */
133
134/*
135 * About recognition of ESS chips
136 *
137 * The distinction of ES688, ES1688, ES1788, ES1887 and ES1888 is described in
d6e05edc 138 * a (preliminary ??) datasheet on ES1887. Its aim is to identify ES1887, but
1da177e4
LT		 139 * during detection the text claims that "this chip may be ..." when a step
140 * fails. This scheme is used to distinct between the above chips.
141 * It appears however that some PnP chips like ES1868 are recognized as ES1788
142 * by the ES1887 detection scheme. These PnP chips can be detected in another
143 * way however: ES1868, ES1869 and ES1878 can be recognized (full proof I think)
144 * by repeatedly reading mixer register 0x40. This is done by ess_identify in
145 * sb_common.c.
146 * This results in the following detection steps:
147 * - distinct between ES688 and ES1688+ (as always done in this driver)
148 * if ES688 we're ready
149 * - try to detect ES1868, ES1869 or ES1878
150 * if successful we're ready
151 * - try to detect ES1888, ES1887 or ES1788
152 * if successful we're ready
153 * - Dunno. Must be 1688. Will do in general
154 *
155 * About RECLEV support:
156 *
157 * The existing ES1688 support didn't take care of the ES1688+ recording
158 * levels very well. Whenever a device was selected (recmask) for recording
d6e05edc 159 * its recording level was loud, and it couldn't be changed. The fact that
1da177e4 160 * internal register 0xb4 could take care of RECLEV, didn't work meaning until
d6e05edc 161 * its value was restored every time the chip was reset; this reset the
1da177e4
LT		 162 * value of 0xb4 too. I guess that's what 4front also had (have?) trouble with.
163 *
164 * About ES1887 support:
165 *
166 * The ES1887 has separate registers to control the recording levels, for all
167 * inputs. The ES1887 specific software makes these levels the same as their
168 * corresponding playback levels, unless recmask says they aren't recorded. In
169 * the latter case the recording volumes are 0.
170 * Now recording levels of inputs can be controlled, by changing the playback
25985edc 171 * levels. Furthermore several devices can be recorded together (which is not
d6e05edc 172 * possible with the ES1688).
1da177e4 173 * Besides the separate recording level control for each input, the common
d6e05edc 174 * recording level can also be controlled by RECLEV as described above.
1da177e4
LT		 175 *
176 * Not only ES1887 have this recording mixer. I know the following from the
177 * documentation:
178 * ES688 no
179 * ES1688 no
180 * ES1868 no
181 * ES1869 yes
182 * ES1878 no
183 * ES1879 yes
184 * ES1888 no/yes Contradicting documentation; most recent: yes
185 * ES1946 yes This is a PCI chip; not handled by this driver
186 */
187
188#include <linux/delay.h>
189#include <linux/interrupt.h>
190#include <linux/spinlock.h>
191
192#include "sound_config.h"
193#include "sb_mixer.h"
194#include "sb.h"
195
196#include "sb_ess.h"
197
198#define ESSTYPE_LIKE20 -1 /* Mimic 2.0 behaviour */
199#define ESSTYPE_DETECT 0 /* Mimic 2.0 behaviour */
200
201#define SUBMDL_ES1788 0x10 /* Subtype ES1788 for specific handling */
202#define SUBMDL_ES1868 0x11 /* Subtype ES1868 for specific handling */
203#define SUBMDL_ES1869 0x12 /* Subtype ES1869 for specific handling */
204#define SUBMDL_ES1878 0x13 /* Subtype ES1878 for specific handling */
205#define SUBMDL_ES1879 0x16 /* ES1879 was initially forgotten */
206#define SUBMDL_ES1887 0x14 /* Subtype ES1887 for specific handling */
207#define SUBMDL_ES1888 0x15 /* Subtype ES1888 for specific handling */
208
209#define SB_CAP_ES18XX_RATE 0x100
210
211#define ES1688_CLOCK1 795444 /* 128 - div */
212#define ES1688_CLOCK2 397722 /* 256 - div */
213#define ES18XX_CLOCK1 793800 /* 128 - div */
214#define ES18XX_CLOCK2 768000 /* 256 - div */
215
216#ifdef FKS_LOGGING
217static void ess_show_mixerregs (sb_devc *devc);
218#endif
219static int ess_read (sb_devc * devc, unsigned char reg);
220static int ess_write (sb_devc * devc, unsigned char reg, unsigned char data);
221static void ess_chgmixer
222 (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val);
223
224/****************************************************************************
225 * *
226 * ESS audio *
227 * *
228 ****************************************************************************/
229
230struct ess_command {short cmd; short data;};
231
232/*
233 * Commands for initializing Audio 1 for input (record)
234 */
235static struct ess_command ess_i08m[] = /* input 8 bit mono */
236 { {0xb7, 0x51}, {0xb7, 0xd0}, {-1, 0} };
237static struct ess_command ess_i16m[] = /* input 16 bit mono */
238 { {0xb7, 0x71}, {0xb7, 0xf4}, {-1, 0} };
239static struct ess_command ess_i08s[] = /* input 8 bit stereo */
240 { {0xb7, 0x51}, {0xb7, 0x98}, {-1, 0} };
241static struct ess_command ess_i16s[] = /* input 16 bit stereo */
242 { {0xb7, 0x71}, {0xb7, 0xbc}, {-1, 0} };
243
244static struct ess_command *ess_inp_cmds[] =
245 { ess_i08m, ess_i16m, ess_i08s, ess_i16s };
246
247
248/*
249 * Commands for initializing Audio 1 for output (playback)
250 */
251static struct ess_command ess_o08m[] = /* output 8 bit mono */
252 { {0xb6, 0x80}, {0xb7, 0x51}, {0xb7, 0xd0}, {-1, 0} };
253static struct ess_command ess_o16m[] = /* output 16 bit mono */
254 { {0xb6, 0x00}, {0xb7, 0x71}, {0xb7, 0xf4}, {-1, 0} };
255static struct ess_command ess_o08s[] = /* output 8 bit stereo */
256 { {0xb6, 0x80}, {0xb7, 0x51}, {0xb7, 0x98}, {-1, 0} };
257static struct ess_command ess_o16s[] = /* output 16 bit stereo */
258 { {0xb6, 0x00}, {0xb7, 0x71}, {0xb7, 0xbc}, {-1, 0} };
259
260static struct ess_command *ess_out_cmds[] =
261 { ess_o08m, ess_o16m, ess_o08s, ess_o16s };
262
263static void ess_exec_commands
264 (sb_devc *devc, struct ess_command *cmdtab[])
265{
266 struct ess_command *cmd;
267
268 cmd = cmdtab [ ((devc->channels != 1) << 1) + (devc->bits != AFMT_U8) ];
269
270 while (cmd->cmd != -1) {
271 ess_write (devc, cmd->cmd, cmd->data);
272 cmd++;
273 }
274}
275
276static void ess_change
277 (sb_devc *devc, unsigned int reg, unsigned int mask, unsigned int val)
278{
279 int value;
280
281 value = ess_read (devc, reg);
282 value = (value & ~mask) | (val & mask);
283 ess_write (devc, reg, value);
284}
285
286static void ess_set_output_parms
287 (int dev, unsigned long buf, int nr_bytes, int intrflag)
288{
289 sb_devc *devc = audio_devs[dev]->devc;
290
291 if (devc->duplex) {
292 devc->trg_buf_16 = buf;
293 devc->trg_bytes_16 = nr_bytes;
294 devc->trg_intrflag_16 = intrflag;
295 devc->irq_mode_16 = IMODE_OUTPUT;
296 } else {
297 devc->trg_buf = buf;
298 devc->trg_bytes = nr_bytes;
299 devc->trg_intrflag = intrflag;
300 devc->irq_mode = IMODE_OUTPUT;
301 }
302}
303
304static void ess_set_input_parms
305 (int dev, unsigned long buf, int count, int intrflag)
306{
307 sb_devc *devc = audio_devs[dev]->devc;
308
309 devc->trg_buf = buf;
310 devc->trg_bytes = count;
311 devc->trg_intrflag = intrflag;
312 devc->irq_mode = IMODE_INPUT;
313}
314
315static int ess_calc_div (int clock, int revert, int *speedp, int *diffp)
316{
317 int divider;
318 int speed, diff;
319 int retval;
320
321 speed = *speedp;
322 divider = (clock + speed / 2) / speed;
323 retval = revert - divider;
324 if (retval > revert - 1) {
325 retval = revert - 1;
326 divider = revert - retval;
327 }
328 /* This line is suggested. Must be wrong I think
329 *speedp = (clock + divider / 2) / divider;
330 So I chose the next one */
331
332 *speedp = clock / divider;
333 diff = speed - *speedp;
334 if (diff < 0) diff =-diff;
335 *diffp = diff;
336
337 return retval;
338}
339
340static int ess_calc_best_speed
341 (int clock1, int rev1, int clock2, int rev2, int *divp, int *speedp)
342{
343 int speed1 = *speedp, speed2 = *speedp;
344 int div1, div2;
345 int diff1, diff2;
346 int retval;
347
348 div1 = ess_calc_div (clock1, rev1, &speed1, &diff1);
349 div2 = ess_calc_div (clock2, rev2, &speed2, &diff2);
350
351 if (diff1 < diff2) {
352 *divp = div1;
353 *speedp = speed1;
354 retval = 1;
355 } else {
356 /* *divp = div2; */
357 *divp = 0x80 | div2;
358 *speedp = speed2;
359 retval = 2;
360 }
361
362 return retval;
363}
364
365/*
366 * Depending on the audiochannel ESS devices can
367 * have different clock settings. These are made consistent for duplex
368 * however.
369 * callers of ess_speed only do an audionum suggestion, which means
370 * input suggests 1, output suggests 2. This suggestion is only true
371 * however when doing duplex.
372 */
373static void ess_common_speed (sb_devc *devc, int *speedp, int *divp)
374{
375 int diff = 0, div;
376
377 if (devc->duplex) {
378 /*
379 * The 0x80 is important for the first audio channel
380 */
381 if (devc->submodel == SUBMDL_ES1888) {
382 div = 0x80 | ess_calc_div (795500, 256, speedp, &diff);
383 } else {
384 div = 0x80 | ess_calc_div (795500, 128, speedp, &diff);
385 }
386 } else if(devc->caps & SB_CAP_ES18XX_RATE) {
387 if (devc->submodel == SUBMDL_ES1888) {
388 ess_calc_best_speed(397700, 128, 795500, 256,
389 &div, speedp);
390 } else {
391 ess_calc_best_speed(ES18XX_CLOCK1, 128, ES18XX_CLOCK2, 256,
392 &div, speedp);
393 }
394 } else {
395 if (*speedp > 22000) {
396 div = 0x80 | ess_calc_div (ES1688_CLOCK1, 256, speedp, &diff);
397 } else {
398 div = 0x00 | ess_calc_div (ES1688_CLOCK2, 128, speedp, &diff);
399 }
400 }
401 *divp = div;
402}
403
404static void ess_speed (sb_devc *devc, int audionum)
405{
406 int speed;
407 int div, div2;
408
409 ess_common_speed (devc, &(devc->speed), &div);
410
411#ifdef FKS_REG_LOGGING
412printk (KERN_INFO "FKS: ess_speed (%d) b speed = %d, div=%x\n", audionum, devc->speed, div);
413#endif
414
415 /* Set filter roll-off to 90% of speed/2 */
416 speed = (devc->speed * 9) / 20;
417
418 div2 = 256 - 7160000 / (speed * 82);
419
420 if (!devc->duplex) audionum = 1;
421
422 if (audionum == 1) {
423 /* Change behaviour of register A1 *
424 sb_chg_mixer(devc, 0x71, 0x20, 0x20)
425 * For ES1869 only??? */
426 ess_write (devc, 0xa1, div);
427 ess_write (devc, 0xa2, div2);
428 } else {
429 ess_setmixer (devc, 0x70, div);
430 /*
431 * FKS: fascinating: 0x72 doesn't seem to work.
432 */
433 ess_write (devc, 0xa2, div2);
434 ess_setmixer (devc, 0x72, div2);
435 }
436}
437
438static int ess_audio_prepare_for_input(int dev, int bsize, int bcount)
439{
440 sb_devc *devc = audio_devs[dev]->devc;
441
442 ess_speed(devc, 1);
443
444 sb_dsp_command(devc, DSP_CMD_SPKOFF);
445
446 ess_write (devc, 0xb8, 0x0e); /* Auto init DMA mode */
447 ess_change (devc, 0xa8, 0x03, 3 - devc->channels); /* Mono/stereo */
448 ess_write (devc, 0xb9, 2); /* Demand mode (4 bytes/DMA request) */
449
450 ess_exec_commands (devc, ess_inp_cmds);
451
452 ess_change (devc, 0xb1, 0xf0, 0x50);
453 ess_change (devc, 0xb2, 0xf0, 0x50);
454
455 devc->trigger_bits = 0;
456 return 0;
457}
458
459static int ess_audio_prepare_for_output_audio1 (int dev, int bsize, int bcount)
460{
461 sb_devc *devc = audio_devs[dev]->devc;
462
463 sb_dsp_reset(devc);
464 ess_speed(devc, 1);
465 ess_write (devc, 0xb8, 4); /* Auto init DMA mode */
466 ess_change (devc, 0xa8, 0x03, 3 - devc->channels); /* Mono/stereo */
467 ess_write (devc, 0xb9, 2); /* Demand mode (4 bytes/request) */
468
469 ess_exec_commands (devc, ess_out_cmds);
470
471 ess_change (devc, 0xb1, 0xf0, 0x50); /* Enable DMA */
472 ess_change (devc, 0xb2, 0xf0, 0x50); /* Enable IRQ */
473
474 sb_dsp_command(devc, DSP_CMD_SPKON); /* There be sound! */
475
476 devc->trigger_bits = 0;
477 return 0;
478}
479
480static int ess_audio_prepare_for_output_audio2 (int dev, int bsize, int bcount)
481{
482 sb_devc *devc = audio_devs[dev]->devc;
483 unsigned char bits;
484
485/* FKS: qqq
486 sb_dsp_reset(devc);
487*/
488
489 /*
490 * Auto-Initialize:
491 * DMA mode + demand mode (8 bytes/request, yes I want it all!)
492 * But leave 16-bit DMA bit untouched!
493 */
494 ess_chgmixer (devc, 0x78, 0xd0, 0xd0);
495
496 ess_speed(devc, 2);
497
498 /* bits 4:3 on ES1887 represent recording source. Keep them! */
499 bits = ess_getmixer (devc, 0x7a) & 0x18;
500
501 /* Set stereo/mono */
502 if (devc->channels != 1) bits |= 0x02;
503
504 /* Init DACs; UNSIGNED mode for 8 bit; SIGNED mode for 16 bit */
505 if (devc->bits != AFMT_U8) bits |= 0x05; /* 16 bit */
506
507 /* Enable DMA, IRQ will be shared (hopefully)*/
508 bits |= 0x60;
509
510 ess_setmixer (devc, 0x7a, bits);
511
512 ess_mixer_reload (devc, SOUND_MIXER_PCM); /* There be sound! */
513
514 devc->trigger_bits = 0;
515 return 0;
516}
517
518static int ess_audio_prepare_for_output(int dev, int bsize, int bcount)
519{
520 sb_devc *devc = audio_devs[dev]->devc;
521
522#ifdef FKS_REG_LOGGING
523printk(KERN_INFO "ess_audio_prepare_for_output: dma_out=%d,dma_in=%d\n"
524, audio_devs[dev]->dmap_out->dma, audio_devs[dev]->dmap_in->dma);
525#endif
526
527 if (devc->duplex) {
528 return ess_audio_prepare_for_output_audio2 (dev, bsize, bcount);
529 } else {
530 return ess_audio_prepare_for_output_audio1 (dev, bsize, bcount);
531 }
532}
533
534static void ess_audio_halt_xfer(int dev)
535{
536 unsigned long flags;
537 sb_devc *devc = audio_devs[dev]->devc;
538
539 spin_lock_irqsave(&devc->lock, flags);
540 sb_dsp_reset(devc);
541 spin_unlock_irqrestore(&devc->lock, flags);
542
543 /*
544 * Audio 2 may still be operational! Creates awful sounds!
545 */
546 if (devc->duplex) ess_chgmixer(devc, 0x78, 0x03, 0x00);
547}
548
549static void ess_audio_start_input
550 (int dev, unsigned long buf, int nr_bytes, int intrflag)
551{
552 int count = nr_bytes;
553 sb_devc *devc = audio_devs[dev]->devc;
554 short c = -nr_bytes;
555
556 /*
557 * Start a DMA input to the buffer pointed by dmaqtail
558 */
559
560 if (audio_devs[dev]->dmap_in->dma > 3) count >>= 1;
561 count--;
562
563 devc->irq_mode = IMODE_INPUT;
564
565 ess_write (devc, 0xa4, (unsigned char) ((unsigned short) c & 0xff));
566 ess_write (devc, 0xa5, (unsigned char) (((unsigned short) c >> 8) & 0xff));
567
568 ess_change (devc, 0xb8, 0x0f, 0x0f); /* Go */
569 devc->intr_active = 1;
570}
571
572static void ess_audio_output_block_audio1
573 (int dev, unsigned long buf, int nr_bytes, int intrflag)
574{
575 int count = nr_bytes;
576 sb_devc *devc = audio_devs[dev]->devc;
577 short c = -nr_bytes;
578
579 if (audio_devs[dev]->dmap_out->dma > 3)
580 count >>= 1;
581 count--;
582
583 devc->irq_mode = IMODE_OUTPUT;
584
585 ess_write (devc, 0xa4, (unsigned char) ((unsigned short) c & 0xff));
586 ess_write (devc, 0xa5, (unsigned char) (((unsigned short) c >> 8) & 0xff));
587
588 ess_change (devc, 0xb8, 0x05, 0x05); /* Go */
589 devc->intr_active = 1;
590}
591
592static void ess_audio_output_block_audio2
593 (int dev, unsigned long buf, int nr_bytes, int intrflag)
594{
595 int count = nr_bytes;
596 sb_devc *devc = audio_devs[dev]->devc;
597 short c = -nr_bytes;
598
599 if (audio_devs[dev]->dmap_out->dma > 3) count >>= 1;
600 count--;
601
602 ess_setmixer (devc, 0x74, (unsigned char) ((unsigned short) c & 0xff));
603 ess_setmixer (devc, 0x76, (unsigned char) (((unsigned short) c >> 8) & 0xff));
604 ess_chgmixer (devc, 0x78, 0x03, 0x03); /* Go */
605
606 devc->irq_mode_16 = IMODE_OUTPUT;
e214e518 607 devc->intr_active_16 = 1;
1da177e4
LT		 608}
609
610static void ess_audio_output_block
611 (int dev, unsigned long buf, int nr_bytes, int intrflag)
612{
613 sb_devc *devc = audio_devs[dev]->devc;
614
615 if (devc->duplex) {
616 ess_audio_output_block_audio2 (dev, buf, nr_bytes, intrflag);
617 } else {
618 ess_audio_output_block_audio1 (dev, buf, nr_bytes, intrflag);
619 }
620}
621
622/*
623 * FKS: the if-statements for both bits and bits_16 are quite alike.
624 * Combine this...
625 */
626static void ess_audio_trigger(int dev, int bits)
627{
628 sb_devc *devc = audio_devs[dev]->devc;
629
630 int bits_16 = bits & devc->irq_mode_16;
631 bits &= devc->irq_mode;
632
633 if (!bits && !bits_16) {
634 /* FKS oh oh.... wrong?? for dma 16? */
635 sb_dsp_command(devc, 0xd0); /* Halt DMA */
636 }
637
638 if (bits) {
639 switch (devc->irq_mode)
640 {
641 case IMODE_INPUT:
642 ess_audio_start_input(dev, devc->trg_buf, devc->trg_bytes,
643 devc->trg_intrflag);
644 break;
645
646 case IMODE_OUTPUT:
647 ess_audio_output_block(dev, devc->trg_buf, devc->trg_bytes,
648 devc->trg_intrflag);
649 break;
650 }
651 }
652
653 if (bits_16) {
654 switch (devc->irq_mode_16) {
655 case IMODE_INPUT:
656 ess_audio_start_input(dev, devc->trg_buf_16, devc->trg_bytes_16,
657 devc->trg_intrflag_16);
658 break;
659
660 case IMODE_OUTPUT:
661 ess_audio_output_block(dev, devc->trg_buf_16, devc->trg_bytes_16,
662 devc->trg_intrflag_16);
663 break;
664 }
665 }
666
667 devc->trigger_bits = bits | bits_16;
668}
669
670static int ess_audio_set_speed(int dev, int speed)
671{
672 sb_devc *devc = audio_devs[dev]->devc;
673 int minspeed, maxspeed, dummydiv;
674
675 if (speed > 0) {
676 minspeed = (devc->duplex ? 6215 : 5000 );
677 maxspeed = (devc->duplex ? 44100 : 48000);
678 if (speed < minspeed) speed = minspeed;
679 if (speed > maxspeed) speed = maxspeed;
680
681 ess_common_speed (devc, &speed, &dummydiv);
682
683 devc->speed = speed;
684 }
685 return devc->speed;
686}
687
688/*
689 * FKS: This is a one-on-one copy of sb1_audio_set_bits
690 */
691static unsigned int ess_audio_set_bits(int dev, unsigned int bits)
692{
693 sb_devc *devc = audio_devs[dev]->devc;
694
695 if (bits != 0) {
696 if (bits == AFMT_U8 || bits == AFMT_S16_LE) {
697 devc->bits = bits;
698 } else {
699 devc->bits = AFMT_U8;
700 }
701 }
702
703 return devc->bits;
704}
705
706/*
707 * FKS: This is a one-on-one copy of sbpro_audio_set_channels
708 * (*) Modified it!!
709 */
710static short ess_audio_set_channels(int dev, short channels)
711{
712 sb_devc *devc = audio_devs[dev]->devc;
713
714 if (channels == 1 || channels == 2) devc->channels = channels;
715
716 return devc->channels;
717}
718
719static struct audio_driver ess_audio_driver = /* ESS ES688/1688 */
720{
721 .owner = THIS_MODULE,
722 .open = sb_audio_open,
723 .close = sb_audio_close,
724 .output_block = ess_set_output_parms,
725 .start_input = ess_set_input_parms,
726 .prepare_for_input = ess_audio_prepare_for_input,
727 .prepare_for_output = ess_audio_prepare_for_output,
728 .halt_io = ess_audio_halt_xfer,
729 .trigger = ess_audio_trigger,
730 .set_speed = ess_audio_set_speed,
731 .set_bits = ess_audio_set_bits,
732 .set_channels = ess_audio_set_channels
733};
734
735/*
736 * ess_audio_init must be called from sb_audio_init
737 */
738struct audio_driver *ess_audio_init
739 (sb_devc *devc, int *audio_flags, int *format_mask)
740{
741 *audio_flags = DMA_AUTOMODE;
742 *format_mask |= AFMT_S16_LE;
743
744 if (devc->duplex) {
745 int tmp_dma;
746 /*
747 * sb_audio_init thinks dma8 is for playback and
748 * dma16 is for record. Not now! So swap them.
749 */
750 tmp_dma = devc->dma16;
751 devc->dma16 = devc->dma8;
752 devc->dma8 = tmp_dma;
753
754 *audio_flags |= DMA_DUPLEX;
755 }
756
757 return &ess_audio_driver;
758}
759
760/****************************************************************************
761 * *
762 * ESS common *
763 * *
764 ****************************************************************************/
765static void ess_handle_channel
766 (char *channel, int dev, int intr_active, unsigned char flag, int irq_mode)
767{
768 if (!intr_active || !flag) return;
769#ifdef FKS_REG_LOGGING
770printk(KERN_INFO "FKS: ess_handle_channel %s irq_mode=%d\n", channel, irq_mode);
771#endif
772 switch (irq_mode) {
773 case IMODE_OUTPUT:
774 DMAbuf_outputintr (dev, 1);
775 break;
776
777 case IMODE_INPUT:
778 DMAbuf_inputintr (dev);
779 break;
780
781 case IMODE_INIT:
782 break;
783
784 default:;
f702cf46 785 /* printk(KERN_WARNING "ESS: Unexpected interrupt\n"); */
1da177e4
LT		 786 }
787}
788
789/*
790 * FKS: TODO!!! Finish this!
791 *
792 * I think midi stuff uses uart401, without interrupts.
793 * So IMODE_MIDI isn't a value for devc->irq_mode.
794 */
795void ess_intr (sb_devc *devc)
796{
797 int status;
798 unsigned char src;
799
800 if (devc->submodel == SUBMDL_ES1887) {
801 src = ess_getmixer (devc, 0x7f) >> 4;
802 } else {
803 src = 0xff;
804 }
805
806#ifdef FKS_REG_LOGGING
807printk(KERN_INFO "FKS: sbintr src=%x\n",(int)src);
808#endif
809 ess_handle_channel
810 ( "Audio 1"
811 , devc->dev, devc->intr_active , src & 0x01, devc->irq_mode );
812 ess_handle_channel
813 ( "Audio 2"
814 , devc->dev, devc->intr_active_16, src & 0x02, devc->irq_mode_16);
815 /*
816 * Acknowledge interrupts
817 */
818 if (devc->submodel == SUBMDL_ES1887 && (src & 0x02)) {
819 ess_chgmixer (devc, 0x7a, 0x80, 0x00);
820 }
821
822 if (src & 0x01) {
823 status = inb(DSP_DATA_AVAIL);
824 }
825}
826
827static void ess_extended (sb_devc * devc)
828{
829 /* Enable extended mode */
830
831 sb_dsp_command(devc, 0xc6);
832}
833
834static int ess_write (sb_devc * devc, unsigned char reg, unsigned char data)
835{
836#ifdef FKS_REG_LOGGING
837printk(KERN_INFO "FKS: write reg %x: %x\n", reg, data);
838#endif
839 /* Write a byte to an extended mode register of ES1688 */
840
841 if (!sb_dsp_command(devc, reg))
842 return 0;
843
844 return sb_dsp_command(devc, data);
845}
846
847static int ess_read (sb_devc * devc, unsigned char reg)
848{
849 /* Read a byte from an extended mode register of ES1688 */
850
851 /* Read register command */
852 if (!sb_dsp_command(devc, 0xc0)) return -1;
853
854 if (!sb_dsp_command(devc, reg )) return -1;
855
856 return sb_dsp_get_byte(devc);
857}
858
859int ess_dsp_reset(sb_devc * devc)
860{
861 int loopc;
862
863#ifdef FKS_REG_LOGGING
864printk(KERN_INFO "FKS: ess_dsp_reset 1\n");
865ess_show_mixerregs (devc);
866#endif
867
1da177e4
LT		 868 outb(3, DSP_RESET); /* Reset FIFO too */
869
870 udelay(10);
871 outb(0, DSP_RESET);
872 udelay(30);
873
874 for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++);
875
876 if (inb(DSP_READ) != 0xAA) {
877 DDB(printk("sb: No response to RESET\n"));
878 return 0; /* Sorry */
879 }
880 ess_extended (devc);
881
1da177e4
LT		 882#ifdef FKS_LOGGING
883printk(KERN_INFO "FKS: dsp_reset 2\n");
884ess_show_mixerregs (devc);
885#endif
886
887 return 1;
888}
889
890static int ess_irq_bits (int irq)
891{
892 switch (irq) {
893 case 2:
894 case 9:
895 return 0;
896
897 case 5:
898 return 1;
899
900 case 7:
901 return 2;
902
903 case 10:
904 return 3;
905
906 default:
907 printk(KERN_ERR "ESS1688: Invalid IRQ %d\n", irq);
908 return -1;
909 }
910}
911
912/*
913 * Set IRQ configuration register for all ESS models
914 */
915static int ess_common_set_irq_hw (sb_devc * devc)
916{
917 int irq_bits;
918
919 if ((irq_bits = ess_irq_bits (devc->irq)) == -1) return 0;
920
921 if (!ess_write (devc, 0xb1, 0x50 | (irq_bits << 2))) {
922 printk(KERN_ERR "ES1688: Failed to write to IRQ config register\n");
923 return 0;
924 }
925 return 1;
926}
927
928/*
929 * I wanna use modern ES1887 mixer irq handling. Funny is the
930 * fact that my BIOS wants the same. But suppose someone's BIOS
931 * doesn't do this!
932 * This is independent of duplex. If there's a 1887 this will
933 * prevent it from going into 1888 mode.
934 */
935static void ess_es1887_set_irq_hw (sb_devc * devc)
936{
937 int irq_bits;
938
939 if ((irq_bits = ess_irq_bits (devc->irq)) == -1) return;
940
941 ess_chgmixer (devc, 0x7f, 0x0f, 0x01 | ((irq_bits + 1) << 1));
942}
943
944static int ess_set_irq_hw (sb_devc * devc)
945{
946 if (devc->submodel == SUBMDL_ES1887) ess_es1887_set_irq_hw (devc);
947
948 return ess_common_set_irq_hw (devc);
949}
950
951#ifdef FKS_TEST
952
953/*
954 * FKS_test:
955 * for ES1887: 00, 18, non wr bits: 0001 1000
956 * for ES1868: 00, b8, non wr bits: 1011 1000
957 * for ES1888: 00, f8, non wr bits: 1111 1000
958 * for ES1688: 00, f8, non wr bits: 1111 1000
959 * + ES968
960 */
961
962static void FKS_test (sb_devc * devc)
963{
964 int val1, val2;
965 val1 = ess_getmixer (devc, 0x64);
966 ess_setmixer (devc, 0x64, ~val1);
967 val2 = ess_getmixer (devc, 0x64) ^ ~val1;
968 ess_setmixer (devc, 0x64, val1);
969 val1 ^= ess_getmixer (devc, 0x64);
970printk (KERN_INFO "FKS: FKS_test %02x, %02x\n", (val1 & 0x0ff), (val2 & 0x0ff));
971};
972#endif
973
974static unsigned int ess_identify (sb_devc * devc)
975{
976 unsigned int val;
977 unsigned long flags;
978
979 spin_lock_irqsave(&devc->lock, flags);
980 outb(((unsigned char) (0x40 & 0xff)), MIXER_ADDR);
981
982 udelay(20);
983 val = inb(MIXER_DATA) << 8;
984 udelay(20);
985 val |= inb(MIXER_DATA);
986 udelay(20);
987 spin_unlock_irqrestore(&devc->lock, flags);
988
989 return val;
990}
991
992/*
993 * ESS technology describes a detection scheme in their docs. It involves
994 * fiddling with the bits in certain mixer registers. ess_probe is supposed
995 * to help.
996 *
997 * FKS: tracing shows ess_probe writes wrong value to 0x64. Bit 3 reads 1, but
998 * should be written 0 only. Check this.
999 */
1000static int ess_probe (sb_devc * devc, int reg, int xorval)
1001{
1002 int val1, val2, val3;
1003
1004 val1 = ess_getmixer (devc, reg);
1005 val2 = val1 ^ xorval;
1006 ess_setmixer (devc, reg, val2);
1007 val3 = ess_getmixer (devc, reg);
1008 ess_setmixer (devc, reg, val1);
1009
1010 return (val2 == val3);
1011}
1012
1013int ess_init(sb_devc * devc, struct address_info *hw_config)
1014{
1015 unsigned char cfg;
1016 int ess_major = 0, ess_minor = 0;
1017 int i;
1018 static char name[100], modelname[10];
1019
1020 /*
1021 * Try to detect ESS chips.
1022 */
1023
1024 sb_dsp_command(devc, 0xe7); /* Return identification */
1025
1026 for (i = 1000; i; i--) {
1027 if (inb(DSP_DATA_AVAIL) & 0x80) {
1028 if (ess_major == 0) {
1029 ess_major = inb(DSP_READ);
1030 } else {
1031 ess_minor = inb(DSP_READ);
1032 break;
1033 }
1034 }
1035 }
1036
1037 if (ess_major == 0) return 0;
1038
1039 if (ess_major == 0x48 && (ess_minor & 0xf0) == 0x80) {
1040 sprintf(name, "ESS ES488 AudioDrive (rev %d)",
1041 ess_minor & 0x0f);
1042 hw_config->name = name;
1043 devc->model = MDL_SBPRO;
1044 return 1;
1045 }
1046
1047 /*
1048 * This the detection heuristic of ESS technology, though somewhat
1049 * changed to actually make it work.
1050 * This results in the following detection steps:
1051 * - distinct between ES688 and ES1688+ (as always done in this driver)
1052 * if ES688 we're ready
1053 * - try to detect ES1868, ES1869 or ES1878 (ess_identify)
1054 * if successful we're ready
1055 * - try to detect ES1888, ES1887 or ES1788 (aim: detect ES1887)
1056 * if successful we're ready
1057 * - Dunno. Must be 1688. Will do in general
1058 *
1059 * This is the most BETA part of the software: Will the detection
1060 * always work?
1061 */
1062 devc->model = MDL_ESS;
1063 devc->submodel = ess_minor & 0x0f;
1064
1065 if (ess_major == 0x68 && (ess_minor & 0xf0) == 0x80) {
1066 char *chip = NULL;
1067 int submodel = -1;
1068
1069 switch (devc->sbmo.esstype) {
1070 case ESSTYPE_DETECT:
1071 case ESSTYPE_LIKE20:
1072 break;
1073 case 688:
1074 submodel = 0x00;
1075 break;
1076 case 1688:
1077 submodel = 0x08;
1078 break;
1079 case 1868:
1080 submodel = SUBMDL_ES1868;
1081 break;
1082 case 1869:
1083 submodel = SUBMDL_ES1869;
1084 break;
1085 case 1788:
1086 submodel = SUBMDL_ES1788;
1087 break;
1088 case 1878:
1089 submodel = SUBMDL_ES1878;
1090 break;
1091 case 1879:
1092 submodel = SUBMDL_ES1879;
1093 break;
1094 case 1887:
1095 submodel = SUBMDL_ES1887;
1096 break;
1097 case 1888:
1098 submodel = SUBMDL_ES1888;
1099 break;
1100 default:
1101 printk (KERN_ERR "Invalid esstype=%d specified\n", devc->sbmo.esstype);
1102 return 0;
395d9dd5 1103 }
1da177e4
LT		 1104 if (submodel != -1) {
1105 devc->submodel = submodel;
1106 sprintf (modelname, "ES%d", devc->sbmo.esstype);
1107 chip = modelname;
395d9dd5 1108 }
1da177e4
LT		 1109 if (chip == NULL && (ess_minor & 0x0f) < 8) {
1110 chip = "ES688";
395d9dd5 1111 }
1da177e4
LT		 1112#ifdef FKS_TEST
1113FKS_test (devc);
1114#endif
1115 /*
1116 * If Nothing detected yet, and we want 2.0 behaviour...
1117 * Then let's assume it's ES1688.
1118 */
1119 if (chip == NULL && devc->sbmo.esstype == ESSTYPE_LIKE20) {
1120 chip = "ES1688";
395d9dd5 1121 }
1da177e4
LT		 1122
1123 if (chip == NULL) {
1124 int type;
1125
1126 type = ess_identify (devc);
1127
1128 switch (type) {
1129 case 0x1868:
1130 chip = "ES1868";
1131 devc->submodel = SUBMDL_ES1868;
1132 break;
1133 case 0x1869:
1134 chip = "ES1869";
1135 devc->submodel = SUBMDL_ES1869;
1136 break;
1137 case 0x1878:
1138 chip = "ES1878";
1139 devc->submodel = SUBMDL_ES1878;
1140 break;
1141 case 0x1879:
1142 chip = "ES1879";
1143 devc->submodel = SUBMDL_ES1879;
1144 break;
1145 default:
1146 if ((type & 0x00ff) != ((type >> 8) & 0x00ff)) {
1147 printk ("ess_init: Unrecognized %04x\n", type);
1148 }
395d9dd5
PST		 1149 }
1150 }
1da177e4
LT		 1151#if 0
1152 /*
1153 * this one failed:
1154 * the probing of bit 4 is another thought: from ES1788 and up, all
1155 * chips seem to have hardware volume control. Bit 4 is readonly to
1156 * check if a hardware volume interrupt has fired.
1157 * Cause ES688/ES1688 don't have this feature, bit 4 might be writeable
1158 * for these chips.
1159 */
1160 if (chip == NULL && !ess_probe(devc, 0x64, (1 << 4))) {
1161#endif
1162 /*
1163 * the probing of bit 2 is my idea. The ES1887 docs want me to probe
1164 * bit 3. This results in ES1688 being detected as ES1788.
1165 * Bit 2 is for "Enable HWV IRQE", but as ES(1)688 chips don't have
1166 * HardWare Volume, I think they don't have this IRQE.
1167 */
1168 if (chip == NULL && ess_probe(devc, 0x64, (1 << 2))) {
1169 if (ess_probe (devc, 0x70, 0x7f)) {
1170 if (ess_probe (devc, 0x64, (1 << 5))) {
1171 chip = "ES1887";
1172 devc->submodel = SUBMDL_ES1887;
1173 } else {
1174 chip = "ES1888";
1175 devc->submodel = SUBMDL_ES1888;
1176 }
1177 } else {
1178 chip = "ES1788";
1179 devc->submodel = SUBMDL_ES1788;
1180 }
395d9dd5 1181 }
1da177e4
LT		 1182 if (chip == NULL) {
1183 chip = "ES1688";
395d9dd5 1184 }
1da177e4 1185
e214e518
DC		 1186 printk(KERN_INFO "ESS chip %s %s%s\n", chip,
1187 (devc->sbmo.esstype == ESSTYPE_DETECT ||
1188 devc->sbmo.esstype == ESSTYPE_LIKE20) ?
1189 "detected" : "specified",
1190 devc->sbmo.esstype == ESSTYPE_LIKE20 ?
1191 " (kernel 2.0 compatible)" : "");
1da177e4
LT		 1192
1193 sprintf(name,"ESS %s AudioDrive (rev %d)", chip, ess_minor & 0x0f);
1194 } else {
1195 strcpy(name, "Jazz16");
1196 }
1197
1198 /* AAS: info stolen from ALSA: these boards have different clocks */
1199 switch(devc->submodel) {
1200/* APPARENTLY NOT 1869 AND 1887
1201 case SUBMDL_ES1869:
1202 case SUBMDL_ES1887:
1203*/
1204 case SUBMDL_ES1888:
1205 devc->caps |= SB_CAP_ES18XX_RATE;
1206 break;
1207 }
1208
1209 hw_config->name = name;
1210 /* FKS: sb_dsp_reset to enable extended mode???? */
1211 sb_dsp_reset(devc); /* Turn on extended mode */
1212
1213 /*
1214 * Enable joystick and OPL3
1215 */
1216 cfg = ess_getmixer (devc, 0x40);
1217 ess_setmixer (devc, 0x40, cfg | 0x03);
1218 if (devc->submodel >= 8) { /* ES1688 */
1219 devc->caps |= SB_NO_MIDI; /* ES1688 uses MPU401 MIDI mode */
1220 }
1221 sb_dsp_reset (devc);
1222
1223 /*
1224 * This is important! If it's not done, the IRQ probe in sb_dsp_init
1225 * may fail.
1226 */
1227 return ess_set_irq_hw (devc);
1228}
1229
1230static int ess_set_dma_hw(sb_devc * devc)
1231{
1232 unsigned char cfg, dma_bits = 0, dma16_bits;
1233 int dma;
1234
1235#ifdef FKS_LOGGING
1236printk(KERN_INFO "ess_set_dma_hw: dma8=%d,dma16=%d,dup=%d\n"
1237, devc->dma8, devc->dma16, devc->duplex);
1238#endif
1239
1240 /*
1241 * FKS: It seems as if this duplex flag isn't set yet. Check it.
1242 */
1243 dma = devc->dma8;
1244
1245 if (dma > 3 || dma < 0 || dma == 2) {
1246 dma_bits = 0;
1247 printk(KERN_ERR "ESS1688: Invalid DMA8 %d\n", dma);
1248 return 0;
1249 } else {
1250 /* Extended mode DMA enable */
1251 cfg = 0x50;
1252
1253 if (dma == 3) {
1254 dma_bits = 3;
1255 } else {
1256 dma_bits = dma + 1;
1257 }
1258 }
1259
1260 if (!ess_write (devc, 0xb2, cfg | (dma_bits << 2))) {
1261 printk(KERN_ERR "ESS1688: Failed to write to DMA config register\n");
1262 return 0;
1263 }
1264
1265 if (devc->duplex) {
1266 dma = devc->dma16;
1267 dma16_bits = 0;
1268
1269 if (dma >= 0) {
1270 switch (dma) {
1271 case 0:
1272 dma_bits = 0x04;
1273 break;
1274 case 1:
1275 dma_bits = 0x05;
1276 break;
1277 case 3:
1278 dma_bits = 0x06;
1279 break;
1280 case 5:
1281 dma_bits = 0x07;
1282 dma16_bits = 0x20;
1283 break;
1284 default:
1285 printk(KERN_ERR "ESS1887: Invalid DMA16 %d\n", dma);
1286 return 0;
395d9dd5 1287 }
1da177e4
LT		 1288 ess_chgmixer (devc, 0x78, 0x20, dma16_bits);
1289 ess_chgmixer (devc, 0x7d, 0x07, dma_bits);
1290 }
1291 }
1292 return 1;
1293}
1294
1295/*
1296 * This one is called from sb_dsp_init.
1297 *
1298 * Return values:
1299 * 0: Failed
1300 * 1: Succeeded or doesn't apply (not SUBMDL_ES1887)
1301 */
1302int ess_dsp_init (sb_devc *devc, struct address_info *hw_config)
1303{
1304 /*
1305 * Caller also checks this, but anyway
1306 */
1307 if (devc->model != MDL_ESS) {
1308 printk (KERN_INFO "ess_dsp_init for non ESS chip\n");
1309 return 1;
1310 }
1311 /*
1312 * This for ES1887 to run Full Duplex. Actually ES1888
1313 * is allowed to do so too. I have no idea yet if this
1314 * will work for ES1888 however.
1315 *
1316 * For SB16 having both dma8 and dma16 means enable
1317 * Full Duplex. Let's try this for ES1887 too
1318 *
1319 */
1320 if (devc->submodel == SUBMDL_ES1887) {
1321 if (hw_config->dma2 != -1) {
1322 devc->dma16 = hw_config->dma2;
1323 }
1324 /*
1325 * devc->duplex initialization is put here, cause
1326 * ess_set_dma_hw needs it.
1327 */
1328 if (devc->dma8 != devc->dma16 && devc->dma16 != -1) {
1329 devc->duplex = 1;
1330 }
1331 }
1332 if (!ess_set_dma_hw (devc)) {
1333 free_irq(devc->irq, devc);
1334 return 0;
1335 }
1336 return 1;
1337}
1338
1339/****************************************************************************
1340 * *
1341 * ESS mixer *
1342 * *
1343 ****************************************************************************/
1344
1345#define ES688_RECORDING_DEVICES \
1346 ( SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD )
1347#define ES688_MIXER_DEVICES \
1348 ( SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE \
1349 | SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME \
1350 | SOUND_MASK_LINE2 | SOUND_MASK_SPEAKER )
1351
1352#define ES1688_RECORDING_DEVICES \
1353 ( ES688_RECORDING_DEVICES )
1354#define ES1688_MIXER_DEVICES \
1355 ( ES688_MIXER_DEVICES | SOUND_MASK_RECLEV )
1356
1357#define ES1887_RECORDING_DEVICES \
1358 ( ES1688_RECORDING_DEVICES | SOUND_MASK_LINE2 | SOUND_MASK_SYNTH)
1359#define ES1887_MIXER_DEVICES \
1360 ( ES1688_MIXER_DEVICES )
1361
1362/*
1363 * Mixer registers of ES1887
1364 *
1365 * These registers specifically take care of recording levels. To make the
1366 * mapping from playback devices to recording devices every recording
1367 * devices = playback device + ES_REC_MIXER_RECDIFF
1368 */
1369#define ES_REC_MIXER_RECBASE (SOUND_MIXER_LINE3 + 1)
1370#define ES_REC_MIXER_RECDIFF (ES_REC_MIXER_RECBASE - SOUND_MIXER_SYNTH)
1371
1372#define ES_REC_MIXER_RECSYNTH (SOUND_MIXER_SYNTH + ES_REC_MIXER_RECDIFF)
1373#define ES_REC_MIXER_RECPCM (SOUND_MIXER_PCM + ES_REC_MIXER_RECDIFF)
1374#define ES_REC_MIXER_RECSPEAKER (SOUND_MIXER_SPEAKER + ES_REC_MIXER_RECDIFF)
1375#define ES_REC_MIXER_RECLINE (SOUND_MIXER_LINE + ES_REC_MIXER_RECDIFF)
1376#define ES_REC_MIXER_RECMIC (SOUND_MIXER_MIC + ES_REC_MIXER_RECDIFF)
1377#define ES_REC_MIXER_RECCD (SOUND_MIXER_CD + ES_REC_MIXER_RECDIFF)
1378#define ES_REC_MIXER_RECIMIX (SOUND_MIXER_IMIX + ES_REC_MIXER_RECDIFF)
1379#define ES_REC_MIXER_RECALTPCM (SOUND_MIXER_ALTPCM + ES_REC_MIXER_RECDIFF)
1380#define ES_REC_MIXER_RECRECLEV (SOUND_MIXER_RECLEV + ES_REC_MIXER_RECDIFF)
1381#define ES_REC_MIXER_RECIGAIN (SOUND_MIXER_IGAIN + ES_REC_MIXER_RECDIFF)
1382#define ES_REC_MIXER_RECOGAIN (SOUND_MIXER_OGAIN + ES_REC_MIXER_RECDIFF)
1383#define ES_REC_MIXER_RECLINE1 (SOUND_MIXER_LINE1 + ES_REC_MIXER_RECDIFF)
1384#define ES_REC_MIXER_RECLINE2 (SOUND_MIXER_LINE2 + ES_REC_MIXER_RECDIFF)
1385#define ES_REC_MIXER_RECLINE3 (SOUND_MIXER_LINE3 + ES_REC_MIXER_RECDIFF)
1386
1387static mixer_tab es688_mix = {
1388MIX_ENT(SOUND_MIXER_VOLUME, 0x32, 7, 4, 0x32, 3, 4),
1389MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
1390MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
1391MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
1392MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
1393MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
1394MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
1395MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
1396MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
1397MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
1398MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
1399MIX_ENT(SOUND_MIXER_RECLEV, 0x00, 0, 0, 0x00, 0, 0),
1400MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
1401MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
1402MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
1403MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
1404MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0)
1405};
1406
1407/*
1408 * The ES1688 specifics... hopefully correct...
1409 * - 6 bit master volume
1410 * I was wrong, ES1888 docs say ES1688 didn't have it.
1411 * - RECLEV control
1412 * These may apply to ES688 too. I have no idea.
1413 */
1414static mixer_tab es1688_mix = {
1415MIX_ENT(SOUND_MIXER_VOLUME, 0x32, 7, 4, 0x32, 3, 4),
1416MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
1417MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
1418MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
1419MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
1420MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
1421MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
1422MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
1423MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
1424MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
1425MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
1426MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
1427MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
1428MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
1429MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
1430MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
1431MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0)
1432};
1433
1434static mixer_tab es1688later_mix = {
1435MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6),
1436MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
1437MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
1438MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
1439MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
1440MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
1441MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
1442MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
1443MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
1444MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
1445MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
1446MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
1447MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
1448MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
1449MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
1450MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
1451MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0)
1452};
1453
1454/*
1455 * This one is for all ESS chips with a record mixer.
1456 * It's not used (yet) however
1457 */
1458static mixer_tab es_rec_mix = {
1459MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6),
1460MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
1461MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
1462MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
1463MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
1464MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
1465MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
1466MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
1467MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
1468MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
1469MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
1470MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
1471MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
1472MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
1473MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
1474MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
1475MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0),
1476MIX_ENT(ES_REC_MIXER_RECSYNTH, 0x6b, 7, 4, 0x6b, 3, 4),
1477MIX_ENT(ES_REC_MIXER_RECPCM, 0x00, 0, 0, 0x00, 0, 0),
1478MIX_ENT(ES_REC_MIXER_RECSPEAKER, 0x00, 0, 0, 0x00, 0, 0),
1479MIX_ENT(ES_REC_MIXER_RECLINE, 0x6e, 7, 4, 0x6e, 3, 4),
1480MIX_ENT(ES_REC_MIXER_RECMIC, 0x68, 7, 4, 0x68, 3, 4),
1481MIX_ENT(ES_REC_MIXER_RECCD, 0x6a, 7, 4, 0x6a, 3, 4),
1482MIX_ENT(ES_REC_MIXER_RECIMIX, 0x00, 0, 0, 0x00, 0, 0),
1483MIX_ENT(ES_REC_MIXER_RECALTPCM, 0x00, 0, 0, 0x00, 0, 0),
1484MIX_ENT(ES_REC_MIXER_RECRECLEV, 0x00, 0, 0, 0x00, 0, 0),
1485MIX_ENT(ES_REC_MIXER_RECIGAIN, 0x00, 0, 0, 0x00, 0, 0),
1486MIX_ENT(ES_REC_MIXER_RECOGAIN, 0x00, 0, 0, 0x00, 0, 0),
1487MIX_ENT(ES_REC_MIXER_RECLINE1, 0x00, 0, 0, 0x00, 0, 0),
1488MIX_ENT(ES_REC_MIXER_RECLINE2, 0x6c, 7, 4, 0x6c, 3, 4),
1489MIX_ENT(ES_REC_MIXER_RECLINE3, 0x00, 0, 0, 0x00, 0, 0)
1490};
1491
1492/*
1493 * This one is for ES1887. It's little different from es_rec_mix: it
1494 * has 0x7c for PCM playback level. This is because ES1887 uses
1495 * Audio 2 for playback.
1496 */
1497static mixer_tab es1887_mix = {
1498MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6),
1499MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
1500MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
1501MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
1502MIX_ENT(SOUND_MIXER_PCM, 0x7c, 7, 4, 0x7c, 3, 4),
1503MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
1504MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
1505MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
1506MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
1507MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
1508MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
1509MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
1510MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
1511MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
1512MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
1513MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
1514MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0),
1515MIX_ENT(ES_REC_MIXER_RECSYNTH, 0x6b, 7, 4, 0x6b, 3, 4),
1516MIX_ENT(ES_REC_MIXER_RECPCM, 0x00, 0, 0, 0x00, 0, 0),
1517MIX_ENT(ES_REC_MIXER_RECSPEAKER, 0x00, 0, 0, 0x00, 0, 0),
1518MIX_ENT(ES_REC_MIXER_RECLINE, 0x6e, 7, 4, 0x6e, 3, 4),
1519MIX_ENT(ES_REC_MIXER_RECMIC, 0x68, 7, 4, 0x68, 3, 4),
1520MIX_ENT(ES_REC_MIXER_RECCD, 0x6a, 7, 4, 0x6a, 3, 4),
1521MIX_ENT(ES_REC_MIXER_RECIMIX, 0x00, 0, 0, 0x00, 0, 0),
1522MIX_ENT(ES_REC_MIXER_RECALTPCM, 0x00, 0, 0, 0x00, 0, 0),
1523MIX_ENT(ES_REC_MIXER_RECRECLEV, 0x00, 0, 0, 0x00, 0, 0),
1524MIX_ENT(ES_REC_MIXER_RECIGAIN, 0x00, 0, 0, 0x00, 0, 0),
1525MIX_ENT(ES_REC_MIXER_RECOGAIN, 0x00, 0, 0, 0x00, 0, 0),
1526MIX_ENT(ES_REC_MIXER_RECLINE1, 0x00, 0, 0, 0x00, 0, 0),
1527MIX_ENT(ES_REC_MIXER_RECLINE2, 0x6c, 7, 4, 0x6c, 3, 4),
1528MIX_ENT(ES_REC_MIXER_RECLINE3, 0x00, 0, 0, 0x00, 0, 0)
1529};
1530
1531static int ess_has_rec_mixer (int submodel)
1532{
1533 switch (submodel) {
1534 case SUBMDL_ES1887:
1535 return 1;
1536 default:
1537 return 0;
1d198f26 1538 }
1da177e4
LT		 1539};
1540
1541#ifdef FKS_LOGGING
1542static int ess_mixer_mon_regs[]
1543 = { 0x70, 0x71, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7d, 0x7f
1544 , 0xa1, 0xa2, 0xa4, 0xa5, 0xa8, 0xa9
1545 , 0xb1, 0xb2, 0xb4, 0xb5, 0xb6, 0xb7, 0xb9
1546 , 0x00};
1547
1548static void ess_show_mixerregs (sb_devc *devc)
1549{
1550 int *mp = ess_mixer_mon_regs;
1551
1552return;
1553
1554 while (*mp != 0) {
1555 printk (KERN_INFO "res (%x)=%x\n", *mp, (int)(ess_getmixer (devc, *mp)));
1556 mp++;
1557 }
1558}
1559#endif
1560
1561void ess_setmixer (sb_devc * devc, unsigned int port, unsigned int value)
1562{
1563 unsigned long flags;
1564
1565#ifdef FKS_LOGGING
1566printk(KERN_INFO "FKS: write mixer %x: %x\n", port, value);
1567#endif
1568
1569 spin_lock_irqsave(&devc->lock, flags);
1570 if (port >= 0xa0) {
1571 ess_write (devc, port, value);
1572 } else {
1573 outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
1574
1575 udelay(20);
1576 outb(((unsigned char) (value & 0xff)), MIXER_DATA);
1577 udelay(20);
395d9dd5 1578 }
1da177e4
LT		 1579 spin_unlock_irqrestore(&devc->lock, flags);
1580}
1581
1582unsigned int ess_getmixer (sb_devc * devc, unsigned int port)
1583{
1584 unsigned int val;
1585 unsigned long flags;
1586
1587 spin_lock_irqsave(&devc->lock, flags);
1588
1589 if (port >= 0xa0) {
1590 val = ess_read (devc, port);
1591 } else {
1592 outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
1593
1594 udelay(20);
1595 val = inb(MIXER_DATA);
1596 udelay(20);
1597 }
1598 spin_unlock_irqrestore(&devc->lock, flags);
1599
1600 return val;
1601}
1602
1603static void ess_chgmixer
1604 (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val)
1605{
1606 int value;
1607
1608 value = ess_getmixer (devc, reg);
1609 value = (value & ~mask) | (val & mask);
1610 ess_setmixer (devc, reg, value);
1611}
1612
1613/*
1614 * ess_mixer_init must be called from sb_mixer_init
1615 */
1616void ess_mixer_init (sb_devc * devc)
1617{
1618 devc->mixer_caps = SOUND_CAP_EXCL_INPUT;
1619
1620 /*
1621 * Take care of ES1887 specifics...
1622 */
1623 switch (devc->submodel) {
1624 case SUBMDL_ES1887:
1625 devc->supported_devices = ES1887_MIXER_DEVICES;
1626 devc->supported_rec_devices = ES1887_RECORDING_DEVICES;
1627#ifdef FKS_LOGGING
1628printk (KERN_INFO "FKS: ess_mixer_init dup = %d\n", devc->duplex);
1629#endif
1630 if (devc->duplex) {
1631 devc->iomap = &es1887_mix;
1632 devc->iomap_sz = ARRAY_SIZE(es1887_mix);
1633 } else {
1634 devc->iomap = &es_rec_mix;
1635 devc->iomap_sz = ARRAY_SIZE(es_rec_mix);
1636 }
1637 break;
1638 default:
1639 if (devc->submodel < 8) {
1640 devc->supported_devices = ES688_MIXER_DEVICES;
1641 devc->supported_rec_devices = ES688_RECORDING_DEVICES;
1642 devc->iomap = &es688_mix;
1643 devc->iomap_sz = ARRAY_SIZE(es688_mix);
1644 } else {
1645 /*
1646 * es1688 has 4 bits master vol.
1647 * later chips have 6 bits (?)
1648 */
1649 devc->supported_devices = ES1688_MIXER_DEVICES;
1650 devc->supported_rec_devices = ES1688_RECORDING_DEVICES;
1651 if (devc->submodel < 0x10) {
1652 devc->iomap = &es1688_mix;
1653 devc->iomap_sz = ARRAY_SIZE(es688_mix);
1654 } else {
1655 devc->iomap = &es1688later_mix;
1656 devc->iomap_sz = ARRAY_SIZE(es1688later_mix);
1657 }
1658 }
1659 }
1660}
1661
1662/*
1663 * Changing playback levels at an ESS chip with record mixer means having to
1664 * take care of recording levels of recorded inputs (devc->recmask) too!
1665 */
1666int ess_mixer_set(sb_devc *devc, int dev, int left, int right)
1667{
1668 if (ess_has_rec_mixer (devc->submodel) && (devc->recmask & (1 << dev))) {
1669 sb_common_mixer_set (devc, dev + ES_REC_MIXER_RECDIFF, left, right);
1670 }
1671 return sb_common_mixer_set (devc, dev, left, right);
1672}
1673
1674/*
1675 * After a sb_dsp_reset extended register 0xb4 (RECLEV) is reset too. After
1676 * sb_dsp_reset RECLEV has to be restored. This is where ess_mixer_reload
1677 * helps.
1678 */
1679void ess_mixer_reload (sb_devc *devc, int dev)
1680{
1681 int left, right, value;
1682
1683 value = devc->levels[dev];
1684 left = value & 0x000000ff;
1685 right = (value & 0x0000ff00) >> 8;
1686
1687 sb_common_mixer_set(devc, dev, left, right);
1688}
1689
1690static int es_rec_set_recmask(sb_devc * devc, int mask)
1691{
1692 int i, i_mask, cur_mask, diff_mask;
1693 int value, left, right;
1694
1695#ifdef FKS_LOGGING
1696printk (KERN_INFO "FKS: es_rec_set_recmask mask = %x\n", mask);
1697#endif
1698 /*
1699 * Changing the recmask on an ESS chip with recording mixer means:
1700 * (1) Find the differences
1701 * (2) For "turned-on" inputs: make the recording level the playback level
1702 * (3) For "turned-off" inputs: make the recording level zero
1703 */
1704 cur_mask = devc->recmask;
1705 diff_mask = (cur_mask ^ mask);
1706
1707 for (i = 0; i < 32; i++) {
1708 i_mask = (1 << i);
1709 if (diff_mask & i_mask) { /* Difference? (1) */
1710 if (mask & i_mask) { /* Turn it on (2) */
1711 value = devc->levels[i];
1712 left = value & 0x000000ff;
1713 right = (value & 0x0000ff00) >> 8;
1714 } else { /* Turn it off (3) */
1da177e4
LT		 1715 left = 0;
1716 right = 0;
1717 }
1718 sb_common_mixer_set(devc, i + ES_REC_MIXER_RECDIFF, left, right);
1719 }
1720 }
1721 return mask;
1722}
1723
1724int ess_set_recmask(sb_devc * devc, int *mask)
1725{
1726 /* This applies to ESS chips with record mixers only! */
1727
1728 if (ess_has_rec_mixer (devc->submodel)) {
1729 *mask = es_rec_set_recmask (devc, *mask);
1730 return 1; /* Applied */
1731 } else {
1732 return 0; /* Not applied */
1733 }
1734}
1735
1736/*
1737 * ess_mixer_reset must be called from sb_mixer_reset
1738 */
1739int ess_mixer_reset (sb_devc * devc)
1740{
1741 /*
1742 * Separate actions for ESS chips with a record mixer:
1743 */
1744 if (ess_has_rec_mixer (devc->submodel)) {
1745 switch (devc->submodel) {
1746 case SUBMDL_ES1887:
1747 /*
1748 * Separate actions for ES1887:
1749 * Change registers 7a and 1c to make the record mixer the
1750 * actual recording source.
1751 */
1752 ess_chgmixer(devc, 0x7a, 0x18, 0x08);
1753 ess_chgmixer(devc, 0x1c, 0x07, 0x07);
1754 break;
395d9dd5 1755 }
1da177e4
LT		 1756 /*
1757 * Call set_recmask for proper initialization
1758 */
1759 devc->recmask = devc->supported_rec_devices;
1760 es_rec_set_recmask(devc, 0);
1761 devc->recmask = 0;
1762
1763 return 1; /* We took care of recmask. */
1764 } else {
1765 return 0; /* We didn't take care; caller do it */
1766 }
1767}
1768
1769/****************************************************************************
1770 * *
1771 * ESS midi *
1772 * *
1773 ****************************************************************************/
1774
1775/*
1776 * FKS: IRQ may be shared. Hm. And if so? Then What?
1777 */
1778int ess_midi_init(sb_devc * devc, struct address_info *hw_config)
1779{
1780 unsigned char cfg, tmp;
1781
1782 cfg = ess_getmixer (devc, 0x40) & 0x03;
1783
1784 if (devc->submodel < 8) {
1785 ess_setmixer (devc, 0x40, cfg | 0x03); /* Enable OPL3 & joystick */
1786 return 0; /* ES688 doesn't support MPU401 mode */
1787 }
1788 tmp = (hw_config->io_base & 0x0f0) >> 4;
1789
1790 if (tmp > 3) {
1791 ess_setmixer (devc, 0x40, cfg);
1792 return 0;
1793 }
1794 cfg |= tmp << 3;
1795
1796 tmp = 1; /* MPU enabled without interrupts */
1797
1798 /* May be shared: if so the value is -ve */
1799
1800 switch (abs(hw_config->irq)) {
1801 case 9:
1802 tmp = 0x4;
1803 break;
1804 case 5:
1805 tmp = 0x5;
1806 break;
1807 case 7:
1808 tmp = 0x6;
1809 break;
1810 case 10:
1811 tmp = 0x7;
1812 break;
1813 default:
1814 return 0;
1815 }
1816
1817 cfg |= tmp << 5;
1818 ess_setmixer (devc, 0x40, cfg | 0x03);
1819
1820 return 1;
1821}
1822
Linux 6.x block layer and io_uring tree(s)