kolibrios/drivers/sceletone.asm

121 lines
2.5 KiB
NASM

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;driver sceletone
format PE DLL native 0.05
entry START
DEBUG equ 1
API_VERSION equ 0 ;debug
STRIDE equ 4 ;size of row in devices table
SRV_GETVERSION equ 0
section '.flat' code readable writable executable
include 'proc32.inc'
include 'struct.inc'
include 'macros.inc'
include 'peimport.inc'
proc START c, state:dword, cmdline:dword
cmp [state], 1
jne .exit
.entry:
push esi
if DEBUG
mov esi, msgInit
invoke SysMsgBoardStr
end if
call detect
pop esi
test eax, eax
jz .fail
invoke RegService, my_service, service_proc
ret
.fail:
.exit:
xor eax, eax
ret
endp
proc service_proc stdcall, ioctl:dword
mov ebx, [ioctl]
mov eax, [ebx+IOCTL.io_code]
cmp eax, SRV_GETVERSION
jne @F
mov eax, [ebx+IOCTL.output]
cmp [ebx+IOCTL.out_size], 4
jne .fail
mov dword [eax], API_VERSION
xor eax, eax
ret
@@:
.fail:
or eax, -1
ret
endp
proc detect
push ebx
invoke GetPCIList
mov ebx, eax
.next_dev:
mov eax, [eax+PCIDEV.fd]
cmp eax, ebx
jz .err
mov edx, [eax+PCIDEV.vendor_device_id]
mov esi, devices
@@:
cmp dword [esi], 0
jz .next_dev
cmp edx, [esi]
jz .found
add esi, STRIDE
jmp @B
.found:
xor eax, eax
inc eax
pop ebx
ret
.err:
mov esi, msgFail
invoke SysMsgBoardStr
xor eax, eax
pop ebx
ret
endp
DEVICE_ID equ 1234; pci device id
VENDOR_ID equ 5678; device vendor id
;all initialized data place here
align 4
devices dd (DEVICE_ID shl 16)+VENDOR_ID
dd 0 ;terminator
my_service db 'MY_SERVICE',0 ;max 16 chars include zero
msgInit db 'detect hardware...',13,10,0
msgFail db 'device not found',13,10,0
align 4
data fixups
end data