aabc2/KOS_qrcodes
1
0
Fork 0
forked from KolibriOS/kolibrios
Code Pull Requests Activity

IDE DMA fix (SATA Native mode).

Browse Source 
git-svn-id: svn://kolibrios.org@4291 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Marat Zakiyanov (Mario79)
2013-11-25 20:00:10 +00:00
parent 9fc5122eb8
commit 12ea7f0fda
3 changed files with 114 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
kernel/trunk/kernel.asm
View File

@@ -1200,12 +1200,28 @@ set_interrupts_for_IDE_controllers:
call boot_log
; Enable interrupts in IDE controller for DMA
mov al, 0
mov ah, [DRIVE_DATA+1]
test ah, 10100000b
jz @f
DEBUGF 1, "K : IDE CH1 PIO, because ATAPI drive present\n"
jmp .ch2_check
@@:
mov dx, [IDE_BAR1_val] ;0x3F4
add dx, 2 ;0x3F6
out dx, al
DEBUGF 1, "K : IDE CH1 DMA enabled\n"
.ch2_check:
test ah, 1010b
jz @f
DEBUGF 1, "K : IDE CH2 PIO, because ATAPI drive present\n"
jmp .end_set_interrupts
@@:
mov dx, [IDE_BAR3_val] ;0x374
add dx, 2 ;0x376
out dx, al
DEBUGF 1, "K : IDE CH2 DMA enabled\n"
;--------------------------------------
.end_set_interrupts:
;-----------------------------------------------------------------------------