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This solve some problems where the driver seemed to work, but you couldn't

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hear any sound. Looks like certain chipsets use the optional aux output,
instead of line out


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@887 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2002-08-26 14:48:24 +00:00
parent df6ee31838
commit 32ffa52615
4 changed files with 25 additions and 4 deletions
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6
src/add-ons/kernel/drivers/audio/ac97/ich/ac97.c
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@ -33,6 +33,8 @@
//#define DEBUG 1 //#define DEBUG 1
#define REVERSE_EAMP_POLARITY 0
#include "debug.h" #include "debug.h"
#include "io.h" #include "io.h"
@ -124,6 +126,10 @@ ac97_amp_enable(bool yesno)
default: default:
{ {
LOG(("powerdown register was = %#04x\n",ich_codec_read(config->codecoffset + AC97_POWERDOWN))); LOG(("powerdown register was = %#04x\n",ich_codec_read(config->codecoffset + AC97_POWERDOWN)));
#if REVERSE_EAMP_POLARITY
yesno = !yesno;
LOG(("using reverse eamp polarity\n"));
#endif
if (yesno) if (yesno)
ich_codec_write(config->codecoffset + AC97_POWERDOWN, ich_codec_read(AC97_POWERDOWN) & ~0x8000); /* switch on (low active) */ ich_codec_write(config->codecoffset + AC97_POWERDOWN, ich_codec_read(AC97_POWERDOWN) & ~0x8000); /* switch on (low active) */
else else

2
src/add-ons/kernel/drivers/audio/ac97/ich/debug.h
View File

@ -39,7 +39,7 @@
* DEBUG == 2, TRACE & LOG, PRINT with snooze() * DEBUG == 2, TRACE & LOG, PRINT with snooze()
*/ */
#ifndef DEBUG #ifndef DEBUG
#define DEBUG 0 #define DEBUG 1
#endif #endif
#undef PRINT #undef PRINT

15
src/add-ons/kernel/drivers/audio/ac97/ich/ich.c
View File

@ -547,11 +547,26 @@ init_driver(void)
resume_thread(int_thread_id); resume_thread(int_thread_id);
} }
LOG(("codec master output = %#04x\n",ich_codec_read(config->codecoffset + 0x02)));
LOG(("codec aux output = %#04x\n",ich_codec_read(config->codecoffset + 0x04)));
LOG(("codec mono output = %#04x\n",ich_codec_read(config->codecoffset + 0x06)));
LOG(("codec pcm output = %#04x\n",ich_codec_read(config->codecoffset + 0x18)));
LOG(("writing codec registers\n"));
/* enable master output */ /* enable master output */
ich_codec_write(config->codecoffset + 0x02, 0x0000); ich_codec_write(config->codecoffset + 0x02, 0x0000);
/* enable aux output */
ich_codec_write(config->codecoffset + 0x04, 0x0000);
/* enable mono output */
ich_codec_write(config->codecoffset + 0x06, 0x0000);
/* enable pcm output */ /* enable pcm output */
ich_codec_write(config->codecoffset + 0x18, 0x0404); ich_codec_write(config->codecoffset + 0x18, 0x0404);
LOG(("codec master output = %#04x\n",ich_codec_read(config->codecoffset + 0x02)));
LOG(("codec aux output = %#04x\n",ich_codec_read(config->codecoffset + 0x04)));
LOG(("codec mono output = %#04x\n",ich_codec_read(config->codecoffset + 0x06)));
LOG(("codec pcm output = %#04x\n",ich_codec_read(config->codecoffset + 0x18)));
#if 0 #if 0
/* enable pcm input */ /* enable pcm input */
ich_codec_write(config->codecoffset + 0x10, 0x0000); ich_codec_write(config->codecoffset + 0x10, 0x0000);

2
src/add-ons/kernel/drivers/audio/ac97/ich/ich.h
View File

@ -30,7 +30,7 @@
#include "hardware.h" #include "hardware.h"
#define VERSION "Version 1.4, Copyright (c) 2002 Marcus Overhagen, compiled on " ## __DATE__ ## " " ## __TIME__ #define VERSION "Version 1.5, Copyright (c) 2002 Marcus Overhagen, compiled on " ## __DATE__ ## " " ## __TIME__
#define DRIVER_NAME "ich_ac97" #define DRIVER_NAME "ich_ac97"
#define BUFFER_SIZE 2048 #define BUFFER_SIZE 2048