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kolibrios-fun/drivers/macros.inc

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include 'kglobals.inc'
PG_UNMAP equ 0x000
PG_MAP equ 0x001
PG_WRITE equ 0x002
PG_SW equ 0x003
PG_USER equ 0x005
PG_UW equ 0x007
PG_NOCACHE equ 0x018
PG_LARGE equ 0x080
PG_GLOBAL equ 0x100
DRV_ENTRY equ 1
DRV_EXIT equ -1
struct LHEAD
next dd ? ;next object in list
prev dd ? ;prev object in list
ends
struct MUTEX
lhead LHEAD
count dd ?
ends
struct PCIDEV
bk dd ?
fd dd ?
vendor_device_id dd ?
class dd ?
devfn db ?
bus db ?
rb 2
owner dd ? ; pointer to SRV or 0
ends
struct IOCTL
handle dd ?
io_code dd ?
input dd ?
inp_size dd ?
output dd ?
out_size dd ?
ends
; The following macro assume that we are on uniprocessor machine.
; Serious work is needed for multiprocessor machines.
macro spin_lock_irqsave spinlock
{
pushf
cli
}
macro spin_unlock_irqrestore spinlock
{
popf
}
macro spin_lock_irq spinlock
{
cli
}
macro spin_unlock_irq spinlock
{
sti
}
; \begin{diamond}[29.09.2006]
; may be useful for kernel debugging
; example 1:
; dbgstr 'Hello, World!'
; example 2:
; dbgstr 'Hello, World!', save_flags
macro dbgstr string*, f
{
local a
iglobal_nested
a db 'K : ',string,13,10,0
endg_nested
if ~ f eq
pushfd
end if
push esi
mov esi, a
if defined SysMsgBoardStr._pe_import
invoke SysMsgBoardStr
else
call SysMsgBoardStr
end if
pop esi
if ~ f eq
popfd
end if
}
; \end{diamond}[29.09.2006]
; MOV Immediate.
; Useful for things like movi eax,10:
; shorter than regular mov, but slightly slower,
; do not use it in performance-critical places.
macro movi dst, imm
{
if imm >= -0x80 & imm <= 0x7F
push imm
pop dst
else
mov dst, imm
end if
}
macro call name
{
if name eqtype func & defined name#._pe_import
err Use invoke, not call/stdcall for PE imports!
end if
call name
}