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Make driver initialization easier in manager.asm 

With this change, the driver's setup function only has to be added
to the 'driver_init_functions'-array and it will be called once
'setup_drivers' is called.
This commit is contained in:
Eric-Paul Ickhorn 2024-07-24 00:14:55 +02:00
parent 6e8e022937
commit 0d16e3e35a
Signed by: epickh
GPG Key ID: CD23347165438512
1 changed files with 31 additions and 2 deletions
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33
i386/loader/src-asm/drivers/manager.asm
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@ -26,13 +26,41 @@ setup_drivers:
mov [esi + (64 - 16)], edx
mov [esi + (64 - 20)], edi
; [esi + 8]: Pointer to the current driver init function
; [esi + 12]L Pointer to current driver slot
; ecx: Driver slot index
xor ecx, ecx
.driver_setup_loop:
cmp ecx, DRIVER_SLOT_COUNT
jae .epilog
mov ebx, ecx
shl ebx, 2
add ebx, driver_init_functions
mov eax, [ebx]
mov [esi + 8], eax
cmp eax, 0
je .epilog
mov eax, ecx
mov edx, DRIVER_SLOT_SIZE
mul edx
mov [esi + 12], eax
push ebp
mov ebp, esp
push dword DRIVER_MEMORY_AREA
call initialize_pci_driver
push dword [esi + 12]
mov eax, [esi + 8]
call eax
mov esp, ebp
pop ebp
inc ecx
jmp .driver_setup_loop
.epilog:
mov eax, [esi + (64 - 4)]
mov ebx, [esi + (64 - 8)]
@ -45,3 +73,4 @@ setup_drivers:
ret
%include "drivers/pci/driver.asm"
%include "drivers/acpi/driver.asm"