KolibriOS/kolibrios
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1) DMA LBA48 read and write for HDD

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2) Some optimization of code

git-svn-id: svn://kolibrios.org@3712 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Marat Zakiyanov (Mario79)
2013-06-27 06:11:10 +00:00
parent 65d0cef44b
commit 93e7aee516
4 changed files with 302 additions and 305 deletions
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14
kernel/trunk/boot/bootcode.inc
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@@ -405,12 +405,13 @@ sayerr:
; class 1 = mass storage
; subclass 1 = IDE controller
; a) class 1, subclass 1, programming interface 0x80
; This is a Parallel IDE Controller which uses IRQs 14 and 15.
mov ax, 0xB103
mov ecx, 1*10000h + 1*100h + 0x80
mov [es:BOOT_IDE_PI_16], cx
xor si, si ; device index = 0
int 0x1A
jnc .found_1
jnc .found_1 ; Parallel IDE Controller
; b) class 1, subclass 1, programming interface 0x8f
mov ax, 0xB103
mov ecx, 1*10000h + 1*100h + 0x8f
@@ -426,12 +427,13 @@ sayerr:
int 0x1A
jnc .found
; d) class 1, subclass 1, programming interface 0x8A
; This is a Parallel IDE Controller which uses IRQs 14 and 15.
mov ax, 0xB103
mov ecx, 1*10000h + 1*100h + 0x8A
mov [es:BOOT_IDE_PI_16], cx
xor si, si ; device index = 0
int 0x1A
jnc .found
jnc .found_1 ; Parallel IDE Controller
jmp .nopci
.found_1:
@@ -448,7 +450,7 @@ sayerr:
.found:
; get memory base BAR0
mov ax, 0xB10A
mov di, 0x10 ; memory base is config register at 0x20
mov di, 0x10 ; memory base is config register at 0x10
push cx
int 0x1A
jc .no_BAR0 ;.nopci
@@ -457,7 +459,7 @@ sayerr:
pop cx
; get memory base BAR1
mov ax, 0xB10A
mov di, 0x14 ; memory base is config register at 0x20
mov di, 0x14 ; memory base is config register at 0x14
push cx
int 0x1A
jc .no_BAR1 ;.nopci
@@ -466,7 +468,7 @@ sayerr:
pop cx
; get memory base BAR2
mov ax, 0xB10A
mov di, 0x18 ; memory base is config register at 0x20
mov di, 0x18 ; memory base is config register at 0x18
push cx
int 0x1A
jc .no_BAR2 ;.nopci
@@ -475,7 +477,7 @@ sayerr:
pop cx
; get memory base BAR3
mov ax, 0xB10A
mov di, 0x1C ; memory base is config register at 0x20
mov di, 0x1C ; memory base is config register at 0x1c
push cx
int 0x1A
jc .no_BAR3 ;.nopci