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fix mouse management

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This commit is contained in:
saintfrater 2026-01-20 14:55:09 +01:00
commit 9621566036
4 changed files with 98 additions and 88 deletions
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41
src/bda.asm
View file

@ -49,26 +49,31 @@
; ;
%define BDA_DATA_SEG 0x0050 %define BDA_DATA_SEG 0x0050
%define BDA_MOUSE 0x0000
%define BDA_MOUSE_BUFFER 0x0000 ; dword; buffer (jusqu'à 4 octets) struc mouse
%define BDA_MOUSE_IDX 0x0004 ; byte 0..3 .buffer resb 4 ; i8042 input buffer
%define DBA_MOUSE_PACKETLEN 0x0005 .idx resb 1 ; index in the buffer
%define DBA_CURSOR_MASK 0x0006 ; byte pixels mask (bit per pixel) .packetlen resb 1 ; max buffer len (3 ou 4)
%define BDA_MOUSE_STATUS 0x0007 ; byte
%define BDA_MOUSE_X 0x0008 ; word
%define BDA_MOUSE_Y 0x000A ; word
%define BDA_MOUSE_WHEEL 0x000C ; word
%define BDA_CURSOR_VISIBLE 0x000E ; byte (0/1) .status resb 1 ; mouse status (button etc)
%define BDA_CURSOR_OLDX 0x000F ; word .wheel resb 1 ; if a packet size is 4; experimental
%define BDA_CURSOR_OLDY 0x0011 ; word .x resw 1 ;
%define BDA_CURSOR_NEWX 0x0013 ; word .y resw 1
%define BDA_CURSOR_NEWY 0x0015 ; word ; cursor management
%define BDA_CURSOR_BITOFF 0x0017 ; byte 0..7 bits d'offset (x&7) .cur_oldx resw 1
%define BDA_CURSOR_BYTES 0x0019 ; byte 2 ou 3 bytes as source for cursor image .cur_oldy resw 1
%define BDA_CURSOR_SAVED 0x001A ; flag if image saved .cur_newx resw 1
%define BDA_CURSOR_PTR 0x001B ; pointeur vers l'image du curseur .cur_newy resw 1
%define BDA_CURSOR_BG 0x0020 ; 48 bytes max (3*16) .cur_visible resb 1
.cur_seg resw 1 ; segment / offset of the pointer
.cur_ofs resw 1
.cur_mask resb 1 ; pixels mask (bit per pixel)
.cur_bit_ofs resb 1 ; 0..7 bits d'offset (x&7)
.cur_bytes resb 1 ; byte 2 ou 3 bytes as source for cursor image
.bkg_saved resb 1 ; background saved
.bkg_buffer resb 48 ; buffer for saved background
endstruc
; ----------------------------------------------------------------------------------- ; -----------------------------------------------------------------------------------
; PC components I/O ports ; PC components I/O ports

14
src/boot.asm
View file

@ -137,18 +137,16 @@ endless:
; ----------------------------------------------------------- ; -----------------------------------------------------------
test_isr: test_isr:
push ax push ax
push fs
mov ax,BDA_DATA_SEG ; push fs
mov fs,ax ;mov ax,BDA_DATA_SEG
inc byte [fs:0x000F] ;mov fs,ax
;inc byte [fs:0x0005]
inc byte [fs:0x0005]
mov al, PIC_EOI ; EOI master mov al, PIC_EOI ; EOI master
out i8259_MASTER_CMD, al out i8259_MASTER_CMD, al
; pop fs
pop fs
pop ax pop ax
iret iret

50
src/drivers/gfx_cgam.asm
View file

@ -43,7 +43,7 @@ gfx_init:
mov al, GFX_MODE mov al, GFX_MODE
int 0x10 int 0x10
mov byte [BDA_CURSOR_SAVED],0 ; flag image saved mov byte [BDA_MOUSE + mouse.bkg_saved],0 ; flag image saved
; dessine un background "check-board" ; dessine un background "check-board"
call gfx_background call gfx_background
@ -159,13 +159,13 @@ gfx_background:
gfx_cursor_calc_align: gfx_cursor_calc_align:
mov al, cl mov al, cl
and al, 7 ; offset = x&7 and al, 7 ; offset = x&7
mov byte [BDA_CURSOR_BITOFF], al mov byte [BDA_MOUSE + mouse.cur_bit_ofs], al
cmp al, 0 cmp al, 0
jne .unaligned jne .unaligned
mov byte [BDA_CURSOR_BYTES], 2 mov byte [BDA_MOUSE + mouse.cur_bytes], 2
ret ret
.unaligned: .unaligned:
mov byte [BDA_CURSOR_BYTES], 3 mov byte [BDA_MOUSE + mouse.cur_bytes], 3
ret ret
; ------------------------------------------------------------ ; ------------------------------------------------------------
@ -211,15 +211,15 @@ gfx_cursor_draw:
mov ax, VIDEO_SEG mov ax, VIDEO_SEG
mov es, ax mov es, ax
mov ax, word [BDA_CURSOR_PTR] mov ax, word [BDA_MOUSE + mouse.cur_ofs]
mov si, ax mov si, ax
mov cx, word [BDA_CURSOR_NEWX] mov cx, word [BDA_MOUSE + mouse.cur_newx]
mov dx, word [BDA_CURSOR_NEWY] mov dx, word [BDA_MOUSE + mouse.cur_newy]
; calcule offset et bytes/ligne (2 ou 3) ; calcule offset et bytes/ligne (2 ou 3)
call gfx_cursor_calc_align call gfx_cursor_calc_align
mov bl, byte [BDA_CURSOR_BITOFF]; 0..7 mov bl, byte [BDA_MOUSE + mouse.cur_bit_ofs]; 0..7
; calcule DI de départ (attention: gfx_calc_addr modifie CL) ; calcule DI de départ (attention: gfx_calc_addr modifie CL)
push cx push cx
@ -417,16 +417,16 @@ gfx_cursor_savebg:
mov ax, VIDEO_SEG mov ax, VIDEO_SEG
mov es, ax mov es, ax
cmp byte [BDA_CURSOR_SAVED], 0 cmp byte [BDA_MOUSE + mouse.bkg_saved], 0
jne .done ; déjà sauvé jne .done ; déjà sauvé
mov cx, [BDA_MOUSE_X] mov cx, [BDA_MOUSE + mouse.x]
mov dx, [BDA_MOUSE_Y] mov dx, [BDA_MOUSE + mouse.y]
mov byte [BDA_CURSOR_SAVED], 1 ; flag image saved mov byte [BDA_MOUSE + mouse.bkg_saved], 1 ; flag image saved
mov word [BDA_CURSOR_NEWX], cx ; sauvegarde la nouvelle position mov word [BDA_MOUSE + mouse.cur_newx], cx ; sauvegarde la nouvelle position
mov word [BDA_CURSOR_NEWY], dx mov word [BDA_MOUSE + mouse.cur_newy], dx
call gfx_calc_addr ; ES:DI = byteaddr pour (X,Y) call gfx_calc_addr ; ES:DI = byteaddr pour (X,Y)
mov dx,0x2000 ; offset pour lignes impaire mov dx,0x2000 ; offset pour lignes impaire
@ -434,15 +434,15 @@ gfx_cursor_savebg:
jl .no_odd_bank jl .no_odd_bank
neg dx ; Y est déja une ligne impaire, on retire l'offset neg dx ; Y est déja une ligne impaire, on retire l'offset
.no_odd_bank: .no_odd_bank:
mov ax, BDA_MOUSE + mouse.bkg_buffer
mov si, BDA_CURSOR_BG ; DS:SI = buffer de sauvegarde mov si, ax ; DS:SI = buffer de sauvegarde
mov bx, 8 mov bx, 8
and cx,0x0007 ; alignement X and cx,0x0007 ; alignement X
jnz .row3 jnz .row3
.row3: ; sauve 3 bytes/ligne .row3: ; sauve 3 bytes/ligne
mov byte [BDA_CURSOR_BYTES], 3 ; 3 bytes/ligne mov byte [BDA_MOUSE + mouse.cur_bytes], 3 ; 3 bytes/ligne
; ligne 'y', peut etre paire ou impaire ; ligne 'y', peut etre paire ou impaire
mov ax, word [es:di] ; charge first word mov ax, word [es:di] ; charge first word
mov word [ds:si], ax ; sauvegarde mov word [ds:si], ax ; sauvegarde
@ -464,7 +464,7 @@ gfx_cursor_savebg:
jmp .done jmp .done
.row2: ; sauve 2 bytes/ligne .row2: ; sauve 2 bytes/ligne
mov byte [BDA_CURSOR_BYTES], 2 ; par défaut mov byte [BDA_MOUSE + mouse.cur_bytes], 2 ; par défaut
; ligne 'y', peut etre paire ou impaire ; ligne 'y', peut etre paire ou impaire
mov ax, word [es:di] ; charge first word mov ax, word [es:di] ; charge first word
mov word [ds:si], ax ; sauvegarde mov word [ds:si], ax ; sauvegarde
@ -497,12 +497,12 @@ gfx_cursor_restorebg:
mov ax, VIDEO_SEG mov ax, VIDEO_SEG
mov es, ax mov es, ax
cmp byte [BDA_CURSOR_SAVED], 0 ; pas de background sauvé cmp byte [BDA_MOUSE + mouse.bkg_saved], 0 ; pas de background sauvé
je .done je .done
mov cx,word [BDA_CURSOR_OLDX] ; restore de la position mov cx,word [BDA_MOUSE + mouse.cur_oldx] ; restore de la position
mov dx,word [BDA_CURSOR_OLDY] mov dx,word [BDA_MOUSE + mouse.cur_oldy]
mov byte [BDA_CURSOR_SAVED], 0 ; le background a été restauré mov byte [BDA_MOUSE + mouse.bkg_saved], 0 ; le background a été restauré
call gfx_calc_addr ; ES:DI = byteaddr pour (X,Y) call gfx_calc_addr ; ES:DI = byteaddr pour (X,Y)
mov dx,0x2000 ; offset pour lignes impaire mov dx,0x2000 ; offset pour lignes impaire
@ -510,10 +510,12 @@ gfx_cursor_restorebg:
jl .no_odd_bank jl .no_odd_bank
neg dx ; Y est déja une ligne impaire, on retire l'offset neg dx ; Y est déja une ligne impaire, on retire l'offset
.no_odd_bank: .no_odd_bank:
mov si, BDA_CURSOR_BG ; DS:SI = buffer de sauvegarde
mov ax, BDA_MOUSE + mouse.bkg_buffer
mov si, ax ; DS:SI = buffer de sauvegarde
mov bx, 8 mov bx, 8
cmp byte [BDA_CURSOR_BYTES], 2 ; si la sauvegarde est en 2 bytes/ligne cmp byte [BDA_MOUSE + mouse.cur_bytes], 2 ; si la sauvegarde est en 2 bytes/ligne
je .row2 je .row2
.row3: ; restore en 3 bytes/ligne .row3: ; restore en 3 bytes/ligne

77
src/drivers/mouse_ps2.asm
View file

@ -82,25 +82,27 @@ mouse_arrow:
; ------------------------------------------------------------ ; ------------------------------------------------------------
mouse_reset: mouse_reset:
mov ax, BDA_DATA_SEG mov ax, BDA_DATA_SEG
mov ds,ax mov fs,ax
; effacer les variables du drivers ; effacer les variables du drivers
mov byte [BDA_MOUSE_IDX],0 mov byte [fs:BDA_MOUSE + mouse.idx],0
mov dword [BDA_MOUSE_BUFFER],0 mov dword [fs:BDA_MOUSE + mouse.buffer],0
mov byte [DBA_MOUSE_PACKETLEN],3 mov byte [fs:BDA_MOUSE + mouse.packetlen],3
mov byte [BDA_MOUSE_STATUS],0 mov byte [fs:BDA_MOUSE + mouse.status],0
mov word [BDA_MOUSE_X],320 ; vous pouvez aussi préciser le centre mov word [fs:BDA_MOUSE + mouse.x],320 ; vous pouvez aussi préciser le centre
mov word [BDA_MOUSE_Y],100 ; vous pouvez aussi préciser le centre mov word [fs:BDA_MOUSE + mouse.y],100 ; vous pouvez aussi préciser le centre
; experiemntal ; experiemntal
mov word [BDA_MOUSE_WHEEL],0 mov word [fs:BDA_MOUSE + mouse.wheel],0
mov byte [BDA_CURSOR_VISIBLE], 1 mov byte [fs:BDA_MOUSE + mouse.cur_visible], 1
mov word [BDA_CURSOR_OLDX], 0 mov word [fs:BDA_MOUSE + mouse.cur_oldx], 0
mov word [BDA_CURSOR_OLDY], 0 mov word [fs:BDA_MOUSE + mouse.cur_oldy], 0
mov word [BDA_CURSOR_PTR], mouse_arrow mov ax, cs
mov word [fs:BDA_MOUSE + mouse.cur_seg], ax
mov word [fs:BDA_MOUSE + mouse.cur_ofs], mouse_arrow
ret ret
; ------------------------------------------------------------ ; ------------------------------------------------------------
@ -200,7 +202,10 @@ mouse_init:
; ;
; ------------------------------------------------------------ ; ------------------------------------------------------------
mouse_detect_packet_len: mouse_detect_packet_len:
mov byte [DBA_MOUSE_PACKETLEN], 3 mov ax, BDA_DATA_SEG
mov fs,ax
mov byte [fs:BDA_MOUSE + mouse.packetlen], 3
; SET_RATE + 200 ; SET_RATE + 200
mov bl, MOUSE_SET_RATE mov bl, MOUSE_SET_RATE
@ -231,7 +236,7 @@ mouse_detect_packet_len:
je .is4 je .is4
ret ret
.is4: .is4:
mov byte [DBA_MOUSE_PACKETLEN], 4 mov byte [fs:BDA_MOUSE + mouse.packetlen], 4
ret ret
; ------------------------------------------------------------ ; ------------------------------------------------------------
@ -332,51 +337,51 @@ isr_mouse_handler:
; lire un octet depuis le contrôleur et le stocker dans le buffer ; lire un octet depuis le contrôleur et le stocker dans le buffer
in al, i8042_PS2_DATA ; lire octet souris in al, i8042_PS2_DATA ; lire octet souris
movzx bx, byte [BDA_MOUSE_IDX] movzx bx, byte [BDA_MOUSE + mouse.idx]
mov byte [BDA_MOUSE_BUFFER + bx], al mov byte [BDA_MOUSE + mouse.buffer + bx], al
inc byte [BDA_MOUSE_IDX] inc byte [BDA_MOUSE + mouse.idx]
; vérifier si le packet est complet ; vérifier si le packet est complet
mov al, [DBA_MOUSE_PACKETLEN] mov al, [BDA_MOUSE + mouse.packetlen]
cmp byte [BDA_MOUSE_IDX], al cmp byte [BDA_MOUSE + mouse.idx], al
jne .done jne .done
; packet complet, on decode les données ; packet complet, on decode les données
mov byte [BDA_MOUSE_IDX], 0 mov byte [BDA_MOUSE + mouse.idx], 0
mov al, [BDA_MOUSE_BUFFER] ; status mov al, [BDA_MOUSE + mouse.buffer] ; status
mov [BDA_MOUSE_STATUS], al mov [BDA_MOUSE + mouse.status], al
mov al, [BDA_MOUSE_BUFFER+1] ; delta X mov al, [BDA_MOUSE + mouse.buffer+1] ; delta X
cbw cbw
add [BDA_MOUSE_X], ax add [BDA_MOUSE + mouse.x], ax
mov al, [BDA_MOUSE_BUFFER+2] ; delta Y mov al, [BDA_MOUSE + mouse.buffer+2] ; delta Y
cbw cbw
sub [BDA_MOUSE_Y], ax sub [BDA_MOUSE + mouse.y], ax
; si packetlen = 4, gérer la molette; experimental ; si packetlen = 4, gérer la molette; experimental
mov al, [BDA_MOUSE_BUFFER+3] ; delta Wheel mov al, [BDA_MOUSE + mouse.buffer+3] ; delta Wheel
cbw cbw
add word [BDA_MOUSE_WHEEL], ax add word [BDA_MOUSE + mouse.wheel], ax
; clamp X ; clamp X
cmp word [BDA_MOUSE_X], 0 cmp word [BDA_MOUSE + mouse.x], 0
jge .x_ok_low jge .x_ok_low
mov word [BDA_MOUSE_X], 0 mov word [BDA_MOUSE + mouse.x], 0
.x_ok_low: .x_ok_low:
cmp word [BDA_MOUSE_X], 639 cmp word [BDA_MOUSE + mouse.x], 639
jle .x_ok_high jle .x_ok_high
mov word [BDA_MOUSE_X], 639 mov word [BDA_MOUSE + mouse.x], 639
.x_ok_high: .x_ok_high:
; clamp Y ; clamp Y
cmp word [BDA_MOUSE_Y], 0 cmp word [BDA_MOUSE + mouse.y], 0
jge .y_ok_low jge .y_ok_low
mov word [BDA_MOUSE_Y], 0 mov word [BDA_MOUSE + mouse.y], 0
.y_ok_low: .y_ok_low:
cmp word [BDA_MOUSE_Y], 199 cmp word [BDA_MOUSE + mouse.y], 199
jle .y_ok_high jle .y_ok_high
mov word [BDA_MOUSE_Y], 199 mov word [BDA_MOUSE + mouse.y], 199
.y_ok_high: .y_ok_high:
; restaurer l'ancien arrière plan du curseur ; restaurer l'ancien arrière plan du curseur
;call gfx_cursor_restorebg ;call gfx_cursor_restorebg