mirror/86Box-probing-tools
1
0
Fork 0
mirror of https://github.com/86Box/probing-tools.git synced 2026-02-25 04:45:33 -07:00
Code Issues Packages Projects Releases Wiki Activity

ac97: Attempt to fix Intel codec reset

Browse Source
This commit is contained in:
RichardG867
2022-01-19 21:12:12 -03:00
parent 2aba54c778
commit 708725dbae
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
ac97/ac97.c
View File

@@ -384,12 +384,12 @@ intel_probe(uint16_t dev_id)
/* Set up AC-Link interface. */
printf("Waking codec up... ");
outb(alt_io_base | 0x2c, inb(alt_io_base | 0x2c) | 0x02);
for (i = 0; i < 4096; i++) /* unknown delay required */
outb(0xeb, 0x00);
outb(alt_io_base | 0x2c, inb(alt_io_base | 0x2c) & ~0x02);
outl(alt_io_base | 0x2c, inl(alt_io_base | 0x2c) & ~0x00000002);
for (i = 1; i; i++) /* unknown delay required */
inb(0xeb);
outl(alt_io_base | 0x2c, inl(alt_io_base | 0x2c) | 0x00000002);
for (i = 1; i; i++) {
if (inb(alt_io_base | 0x31) & 0x01)
if (inl(alt_io_base | 0x30) & 0x00000100)
break;
}
if (!i) {