StupidOS/kernel/dev/dev.inc

92 lines
1.6 KiB
PHP

;; File: dev.inc
include 'at/cmos.inc'
include 'at/com.inc'
include 'at/ne2k.inc'
include 'at/pit.inc'
include 'at/kbd.inc'
include 'at/cga.inc'
include 'at/ata.inc'
include 'at/floppy.inc'
struc Device {
.name db 8 dup(?)
.init dd ?
}
DEFN Device
;; Struc: BlkDev
;;
;; .open - Open the device in preparation for I/O operations
;; .strategy - Start a read or write operation, and return immediately.
;; .close - Close a device.
;; .dump - Write all physical memory to the device.
;; .psize - Return the size of a disk-drive partition.
;;
struc BlkDev {
.open dd ?
.strategy dd ?
.ioctl dd ?
.close dd ?
.dump dd ?
.psize dd ?
}
;; Struc: CharDev
;;
;; .open - open the device.
;; .close - close the device..
;; .read - do an input operation.
;; .write - do an output operation.
;; .ioctl - do an I/O control operation.
;; .select - poll device for I/O readiness.
;; .stop - stop output on the device.
;; .mmap - map device offset to memory location
;; .reset - reinitialize device after a bus reset.
;;
struc CharDev {
.open dd ?
.close dd ?
.read dd ?
.write dd ?
.ioctl dd ?
.select dd ?
.stop dd ?
.mmap dd ?
.reset dd ?
}
aBlockDevices:
dd floppy_bdevsw
dd ata_bdevsw
.end:
aCharDevices:
dd console_cdevws
dd com_cdevsw
.end:
aDevices:
dd floppy_device
dd kbd_device
dd console_device
dd com_device
dd ne2k_device
dd ata_device
.end:
;; Function: dev_init
dev_init:
mov ecx, aDevices
@@:
mov eax, [ecx]
mov eax, [eax + Device.init]
push ecx
call eax
pop ecx
add ecx, 4
cmp ecx, aDevices.end
jb @b
ret