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Removed redundant code for creating packages
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@mxlgv
mxlgv committed Oct 1, 2023
1 parent 1061653 commit c8632e3
Showing 1 changed file with 46 additions and 57 deletions.
103 changes: 46 additions & 57 deletions vbox.asm
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Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2022. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2023. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; Writen by Maxim Logaev (turbocat2001) ;;
;; 2022 year ;;
;; 2022-2023 year ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

Expand All @@ -13,7 +13,7 @@ entry START

DEBUG = 1
__DEBUG__ = 1
__DEBUG_LEVEL__ = 1
__DEBUG_LEVEL__ = 2

include 'inc/proc32.inc'
include 'inc/struct.inc'
Expand Down Expand Up @@ -67,7 +67,7 @@ proc START c, state, cmdline : dword
invoke PciRead32, dword [ebx + PCIDEV.bus], dword [ebx + PCIDEV.devfn], PCI_header00.base_addr_0
and al, not 0xF
DEBUGF 1,"[vbox]: Port %x\n", eax
mov word [vbox_device.port], ax
mov [vbox_device.port], ax

; Create mapping for MMIO.
invoke PciRead32, dword [ebx + PCIDEV.bus], dword [ebx + PCIDEV.devfn], PCI_header00.base_addr_1
Expand All @@ -77,28 +77,24 @@ proc START c, state, cmdline : dword
DEBUGF 1,"[vbox]: MMIO virt %x\n", eax
mov [vbox_device.mmio], eax

; Allocate space for packets and send if needed.
mov esi, const_vbox_guest_info
mov edi, sizeof.VBOX_GUEST_INFO/4
call vbox_create_pack
; Sending packets for initialization
mov eax, vbox_guest_info
invoke GetPhysAddr
vbox_send_pack

mov esi, const_vbox_guest_caps
mov edi, sizeof.VBOX_GUEST_CAPS/4
call vbox_create_pack
mov eax, vbox_guest_caps
invoke GetPhysAddr
vbox_send_pack

mov esi, const_vbox_ack
mov edi, sizeof.VBOX_ACK_EVENTS/4
call vbox_create_pack
mov eax, vbox_ack
mov [vbox_device.ack_addr.virt], eax
invoke GetPhysAddr
mov [vbox_device.ack_addr.phys], eax
mov [vbox_device.ack_addr.virt], ebx

mov esi, const_vbox_display
mov edi, sizeof.VBOX_DISPLAY_CHANGE/4
call vbox_create_pack
mov eax, vbox_display
mov [vbox_device.display_addr.virt], eax
invoke GetPhysAddr
mov [vbox_device.display_addr.phys], eax
mov [vbox_device.display_addr.virt], ebx

; Enable interrupts for declared capabilities (enable all).
xor eax, eax
Expand All @@ -121,26 +117,9 @@ proc START c, state, cmdline : dword
endp


; in: esi - pack constant
; edi - pack constant size in blocks of 4 bytes
; out: eax - phys
; ebx - virt
proc vbox_create_pack
invoke AllocPage
mov ebx, eax
invoke MapIoMem, ebx, 0x1000, PG_NOCACHE + PG_SW

mov ecx, edi
mov edi, eax
rep movsd

xchg eax, ebx
ret
endp


proc service_proc stdcall, ioctl:dword
xor eax, eax
dec eax
ret
endp

Expand All @@ -160,25 +139,36 @@ proc set_display_res
cmp esi, KOS_DISP_H_MIN
jb .skip
cmp edi, KOS_DISP_W_MAX
ja .skip
ja .skip
cmp esi, KOS_DISP_W_MAX
ja .skip
ja .skip
cmp ecx, VBE_DISPI_BPP_32
jz .cont
cmp ecx, VBE_DISPI_BPP_24
jz .cont
cmp ecx, VBE_DISPI_BPP_16
jz .cont
cmp ecx, VBE_DISPI_BPP_8
jnz .skip

.cont:
DEBUGF 1,"[vbox]: new %dx%d %d\n", edi, esi, ecx

; Change video mode using Bochs Graphics Adapter
cli
bga_set_video_mode edi, esi, ecx
sti

mov ecx, edi
shl ecx, BSF (VBE_DISPI_BPP_32/8) ; calculate scanline (x_res*VBE_DISPI_BPP_32/8)
mov ebx, ecx
; Calculate scanline (x_res*bpp/8)
shr ecx, 3
mov eax, edi
mul ecx
mov ecx, eax

mov eax, [kos_display_ptr]
mov [eax + DISPLAY.width], edi
mov [eax + DISPLAY.height], esi
mov [eax + DISPLAY.bits_per_pixel], ebx

mov eax, edi
mov edx, esi
Expand Down Expand Up @@ -218,22 +208,21 @@ proc vbox_irq_handler stdcall
endp


service_name: db 'vbox', 0
service_name: db 'VBOX', 0
version_str: db '1.1', 0

align 4
vbox_device:
.port dw 0
dw 0
.mmio dd 0
.ack_addr.virt dd 0
.ack_addr.phys dd 0
.display_addr.virt dd 0
.display_addr.phys dd 0

kos_display_ptr: dd ?

.port dw 0
.mmio dd 0
.ack_addr.virt dd 0
.ack_addr.phys dd 0
.display_addr.virt dd 0
.display_addr.phys dd 0

kos_display_ptr: dd ?
; Prepared packages for sending requests to virtual box
const_vbox_guest_info VBOX_GUEST_INFO \
vbox_guest_info VBOX_GUEST_INFO \
<sizeof.VBOX_GUEST_INFO, \
VBOX_REQUEST_HEADER_VERSION, \
VBOX_VMM_REPORT_GUEST_INFO, \
Expand All @@ -243,7 +232,7 @@ const_vbox_guest_info VBOX_GUEST_INFO \
VBOX_VMMDEV_VERSION, \
0

const_vbox_guest_caps VBOX_GUEST_CAPS \
vbox_guest_caps VBOX_GUEST_CAPS \
<sizeof.VBOX_GUEST_CAPS, \
VBOX_REQUEST_HEADER_VERSION, \
VBOX_REQUEST_SET_GUEST_CAPS, \
Expand All @@ -252,7 +241,7 @@ const_vbox_guest_caps VBOX_GUEST_CAPS \
0>, \
1 SHL 2

const_vbox_ack VBOX_ACK_EVENTS \
vbox_ack VBOX_ACK_EVENTS \
<sizeof.VBOX_ACK_EVENTS, \
VBOX_REQUEST_HEADER_VERSION, \
VBOX_REQUEST_ACK_EVENTS, \
Expand All @@ -261,7 +250,7 @@ const_vbox_ack VBOX_ACK_EVENTS \
0>, \
0

const_vbox_display VBOX_DISPLAY_CHANGE \
vbox_display VBOX_DISPLAY_CHANGE \
<sizeof.VBOX_DISPLAY_CHANGE, \
VBOX_REQUEST_HEADER_VERSION, \
VBOX_REQUEST_GET_DISPLAY_CHANGE, \
Expand Down

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