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Ignore whitespace Rev 415 → Rev 416

/kernel/branches/flat_kernel/drivers/comport.asm
File deleted
/kernel/branches/flat_kernel/drivers/build.bat
0,0 → 1,6
@fasm sound.asm sound.obj
@fasm sis.asm sis.obj
@fasm infinity.asm infinity.obj
@fasm ati2d.asm ati2d.obj
@fasm vmode.asm vmode.mdr
@pause
/kernel/branches/flat_kernel/drivers/uart.inc
0,0 → 1,927
 
;OS_BASE equ 0x80000000
;new_app_base equ 0x60400000
;PROC_BASE equ OS_BASE+0x0080000
 
struc IOCTL
{ .handle dd ?
.io_code dd ?
.input dd ?
.inp_size dd ?
.output dd ?
.out_size dd ?
}
 
 
;public START
;public service_proc
;public version
 
DEBUG equ 1
 
DRV_ENTRY equ 1
DRV_EXIT equ -1
 
THR_REG equ 0; x3f8 ;transtitter/reciever
IER_REG equ 1; x3f9 ;interrupt enable
IIR_REG equ 2; x3fA ;interrupt info
LCR_REG equ 3; x3FB ;line control
MCR_REG equ 4; x3FC ;modem control
LSR_REG equ 5; x3FD ;line status
MSR_REG equ 6; x3FE ;modem status
 
LCR_5BIT equ 0x00
LCR_6BIT equ 0x01
LCR_7BIT equ 0x02
LCR_8BIT equ 0x03
LCR_STOP_1 equ 0x00
LCR_STOP_2 equ 0x04
LCR_PARITY equ 0x08
LCR_EVEN equ 0x10
LCR_STICK equ 0x20
LCR_BREAK equ 0x40
LCR_DLAB equ 0x80
 
LSR_DR equ 0x01 ;data ready
LSR_OE equ 0x02 ;overrun error
LSR_PE equ 0x04 ;parity error
LSR_FE equ 0x08 ;framing error
LSR_BI equ 0x10 ;break interrupt
LSR_THRE equ 0x20 ;transmitter holding empty
LSR_TEMT equ 0x40 ;transmitter empty
LSR_FER equ 0x80 ;FIFO error
 
FCR_EFIFO equ 0x01 ;enable FIFO
FCR_CRB equ 0x02 ;clear reciever FIFO
FCR_CXMIT equ 0x04 ;clear transmitter FIFO
FCR_RDY equ 0x08 ;set RXRDY and TXRDY pins
FCR_FIFO_1 equ 0x00 ;1 byte trigger
FCR_FIFO_4 equ 0x40 ;4 bytes trigger
FCR_FIFO_8 equ 0x80 ;8 bytes trigger
FCR_FIFO_14 equ 0xC0 ;14 bytes trigger
 
IIR_INTR equ 0x01 ;1= no interrupts
 
IER_RDAI equ 0x01 ;reciever data interrupt
IER_THRI equ 0x02 ;transmitter empty interrupt
IER_LSI equ 0x04 ;line status interrupt
IER_MSI equ 0x08 ;modem status interrupt
 
MCR_DTR equ 0x01 ;0-> DTR=1, 1-> DTR=0
MCR_RTS equ 0x02 ;0-> RTS=1, 1-> RTS=0
MCR_OUT_1 equ 0x04 ;0-> OUT1=1, 1-> OUT1=0
MCR_OUT_2 equ 0x08 ;0-> OUT2=1, 1-> OUT2=0; enable intr
MCR_LOOP equ 0x10 ;lopback mode
 
MSR_DCTS equ 0x01 ;delta clear to send
MSR_DDSR equ 0x02 ;delta data set redy
MSR_TERI equ 0x04 ;trailinh edge of ring
MSR_DDCD equ 0x08 ;delta carrier detect
 
 
RATE_50 equ 0
RATE_75 equ 1
RATE_110 equ 2
RATE_134 equ 3
RATE_150 equ 4
RATE_300 equ 5
RATE_600 equ 6
RATE_1200 equ 7
RATE_1800 equ 8
RATE_2000 equ 9
RATE_2400 equ 10
RATE_3600 equ 11
RATE_4800 equ 12
RATE_7200 equ 13
RATE_9600 equ 14
RATE_19200 equ 15
RATE_38400 equ 16
RATE_57600 equ 17
RATE_115200 equ 18
 
COM_1 equ 1
COM_2 equ 2
COM_3 equ 3
COM_4 equ 4
COM_MAX equ 2 ;only two port supported
 
COM_1_BASE equ 0x3F8
COM_2_BASE equ 0x2F8
 
COM_1_IRQ equ 4
COM_2_IRQ equ 3
 
UART_CLOSED equ 0
UART_TRANSMIT equ 1
UART_STOP equ 2
 
struc UART
{
.lock dd ?
.base dd ?
.lcr_reg dd ?
.mcr_reg dd ?
.rate dd ?
.mode dd ?
.state dd ?
 
.rcvr_buff dd ?
.rcvr_rp dd ?
.rcvr_wp dd ?
.rcvr_count dd ?
.rcvr_top dd ?
 
.xmit_buff dd ?
.xmit_rp dd ?
.xmit_wp dd ?
.xmit_count dd ?
.xmit_free dd ?
.xmit_top dd ?
}
virtual at 0
UART UART
end virtual
 
UART_SIZE equ 18*4
 
struc CONNECTION
{
.magic dd ? ;'CNCT'
.destroy dd ? ;internal destructor
.fd dd ? ;next object in list
.bk dd ? ;prev object in list
.pid dd ? ;owner id
 
.id dd ? ;reserved
.uart dd ? ;uart pointer
}
 
virtual at 0
CONNECTION CONNECTION
end virtual
 
CONNECTION_SIZE equ 7*4
 
UART_VERSION equ 0x12345678 ;debug
 
init_uart_service:
mov eax, UART_SIZE
call malloc
test eax, eax
jz .fail
 
mov [com1], eax
mov edi, eax
mov ecx, UART_SIZE/4
xor eax, eax
cld
rep stosd
 
mov eax, [com1]
mov [eax+UART.base], COM_1_BASE
 
stdcall alloc_kernel_space, 32768
 
mov edi, [com1]
mov edx, eax
 
mov [edi+UART.rcvr_buff], eax
add eax, 8192
mov [edi+UART.rcvr_top], eax
add eax, 8192
mov [edi+UART.xmit_buff], eax
add eax, 8192
mov [edi+UART.xmit_top], eax
 
call alloc_page
test eax, eax
jz .fail
 
shr edx, 12
or eax, PG_SW
mov [page_tabs+edx*4], eax
mov [page_tabs+edx*4+8], eax
 
call alloc_page
test eax, eax
jz .fail
 
or eax, PG_SW
mov [page_tabs+edx*4+4], eax
mov [page_tabs+edx*4+12], eax
 
call alloc_page
test eax, eax
jz .fail
 
or eax, PG_SW
mov [page_tabs+edx*4+16], eax
mov [page_tabs+edx*4+24], eax
 
call alloc_page
test eax, eax
jz .fail
 
or eax, PG_SW
mov [page_tabs+edx*4+20], eax
mov [page_tabs+edx*4+28], eax
 
mov eax, [edi+UART.rcvr_buff]
invlpg [eax]
invlpg [eax+0x1000]
invlpg [eax+0x2000]
invlpg [eax+0x3000]
invlpg [eax+0x4000]
invlpg [eax+0x5000]
invlpg [eax+0x6000]
invlpg [eax+0x7000]
 
mov eax, edi
call uart_reset.internal ;eax= uart
 
stdcall attach_int_handler, COM_1_IRQ, com_1_isr
stdcall reg_service, sz_uart_srv, uart_proc
ret
.fail:
xor eax, eax
ret
 
handle equ IOCTL.handle
io_code equ IOCTL.io_code
input equ IOCTL.input
inp_size equ IOCTL.inp_size
output equ IOCTL.output
out_size equ IOCTL.out_size
 
SRV_GETVERSION equ 0
PORT_OPEN equ 1
PORT_CLOSE equ 2
PORT_RESET equ 3
PORT_SETMODE equ 4
PORT_GETMODE equ 5
PORT_SETMCR equ 6
PORT_GETMCR equ 7
PORT_READ equ 8
PORT_WRITE equ 9
 
align 4
proc uart_proc stdcall, ioctl:dword
 
mov ebx, [ioctl]
mov eax, [ebx+io_code]
cmp eax, PORT_WRITE
ja .fail
 
cmp eax, SRV_GETVERSION
jne @F
 
mov eax, [ebx+output]
mov [eax], dword UART_VERSION
xor eax, eax
ret
@@:
cmp eax, PORT_OPEN
jne @F
 
mov ebx, [ebx+input]
mov eax, [ebx]
call uart_open
mov ebx, [ioctl]
mov ebx, [ebx+output]
mov [ebx], ecx
ret
@@:
mov esi, [ebx+input] ;input buffer
mov edi, [ebx+output]
call [uart_func+eax*4]
ret
.fail:
or eax, -1
ret
 
endp
 
restore handle
restore io_code
restore input
restore inp_size
restore output
restore out_size
 
 
; param
; esi= input buffer
; +0 connection
;
; retval
; eax= error code
 
align 4
uart_reset:
mov eax, [esi]
cmp [eax+APPOBJ.magic], 'CNCT'
jne .fail
 
cmp [eax+APPOBJ.destroy], uart_close.destroy
jne .fail
 
mov eax, [eax+CONNECTION.uart]
test eax, eax
jz .fail
 
; set mode 2400 bod 8-bit
; disable DTR & RTS
; clear FIFO
; clear pending interrupts
;
; param
; eax= uart
 
align 4
.internal:
mov esi, eax
mov [eax+UART.state], UART_CLOSED
mov edx, [eax+UART.base]
add edx, MCR_REG
xor eax, eax
out dx, al ;clear DTR & RTS
 
mov eax, esi
mov ebx, RATE_2400
mov ecx, LCR_8BIT+LCR_STOP_1
call uart_set_mode.internal
 
mov edx, [esi+UART.base]
add edx, IIR_REG
mov eax,FCR_EFIFO+FCR_CRB+FCR_CXMIT+FCR_FIFO_14
out dx, al
.clear_RB:
mov edx, [esi+UART.base]
add edx, LSR_REG
in al, dx
test eax, LSR_DR
jz @F
 
mov edx, [esi+UART.base]
in al, dx
jmp .clear_RB
@@:
mov edx, [esi+UART.base]
add edx, IER_REG
mov eax,IER_RDAI+IER_THRI+IER_LSI
out dx, al
.clear_IIR:
mov edx, [esi+UART.base]
add edx, IIR_REG
in al, dx
test al, IIR_INTR
jnz .done
 
shr eax, 1
and eax, 3
jnz @F
 
mov edx, [esi+UART.base]
add edx, MSR_REG
in al, dx
jmp .clear_IIR
@@:
cmp eax, 1
je .clear_IIR
 
cmp eax, 2
jne @F
 
mov edx, [esi+UART.base]
in al, dx
jmp .clear_IIR
@@:
mov edx, [esi+UART.base]
add edx, LSR_REG
in al, dx
jmp .clear_IIR
.done:
mov edi, [esi+UART.rcvr_buff]
mov ecx, 8192/4
xor eax, eax
 
mov [esi+UART.rcvr_rp], edi
mov [esi+UART.rcvr_wp], edi
mov [esi+UART.rcvr_count], eax
 
cld
rep stosd
 
mov edi, [esi+UART.xmit_buff]
mov ecx, 8192/4
 
mov [esi+UART.xmit_rp], edi
mov [esi+UART.xmit_wp], edi
mov [esi+UART.xmit_count], eax
mov [esi+UART.xmit_free], 8192
 
rep stosd
ret ;eax= 0
.fail:
or eax, -1
ret
 
; param
; esi= input buffer
; +0 connection
; +4 rate
; +8 mode
;
; retval
; eax= error code
 
align 4
uart_set_mode:
mov eax, [esi]
cmp [eax+APPOBJ.magic], 'CNCT'
jne .fail
 
cmp [eax+APPOBJ.destroy], uart_close.destroy
jne .fail
 
mov eax, [eax+CONNECTION.uart]
test eax, eax
jz .fail
 
mov ebx, [esi+4]
mov ecx, [esi+8]
 
; param
; eax= uart
; ebx= baud rate
; ecx= mode
 
align 4
.internal:
cmp ebx, RATE_115200
ja .fail
 
cmp ecx, LCR_BREAK
jae .fail
 
mov [eax+UART.rate], ebx
mov [eax+UART.mode], ecx
 
mov esi, eax
mov bx, [divisor+ebx*2]
 
mov edx, [esi+UART.base]
push edx
add edx, LCR_REG
in al, dx
or al, 0x80
out dx, al
 
pop edx
mov al, bl
out dx, al
 
inc dx
mov al, bh
out dx, al
 
add edx, LCR_REG-1
mov eax, ecx
out dx, al
xor eax, eax
ret
.fail:
or eax, -1
ret
 
; param
; esi= input buffer
; +0 connection
; +4 modem control reg valie
;
; retval
; eax= error code
 
align 4
uart_set_mcr:
 
mov eax, [esi]
cmp [eax+APPOBJ.magic], 'CNCT'
jne .fail
 
cmp [eax+APPOBJ.destroy], uart_close.destroy
jne .fail
 
mov eax, [eax+CONNECTION.uart]
test eax, eax
jz .fail
 
mov ebx, [esi+4]
 
mov [eax+UART.mcr_reg], ebx
mov edx, [eax+UART.base]
add edx, MCR_REG
mov al, bl
out dx, al
xor eax, eax
ret
.fail:
or eax, -1
ret
 
; param
; eax= port
;
; retval
; ecx= connection
; eax= error code
 
align 4
uart_open:
dec eax
cmp eax, COM_MAX
jae .fail
 
mov esi, [com1+eax*4] ;uart
push esi
.do_wait:
cmp dword [esi+UART.lock],0
je .get_lock
call change_task
jmp .do_wait
.get_lock:
mov eax, 1
xchg eax, [esi+UART.lock]
test eax, eax
jnz .do_wait
 
mov eax, esi ;uart
call uart_reset.internal
 
mov ebx, [CURRENT_TASK]
shl ebx, 5
mov ebx, [CURRENT_TASK+ebx+4]
mov eax, CONNECTION_SIZE
call create_kernel_object
pop esi ;uart
test eax, eax
jz .fail
 
mov [eax+APPOBJ.magic], 'CNCT'
mov [eax+APPOBJ.destroy], uart_close.destroy
mov [eax+CONNECTION.uart], esi
mov ecx, eax
xor eax, eax
ret
.fail:
or eax, -1
ret
restore .uart
 
; param
; esi= input buffer
 
align 4
uart_close:
mov eax, [esi]
cmp [eax+APPOBJ.magic], 'CNCT'
jne .fail
 
cmp [eax+APPOBJ.destroy], uart_close.destroy
jne .fail
.destroy:
push [eax+CONNECTION.uart]
call destroy_kernel_object ;eax= object
pop eax ;eax= uart
test eax, eax
jz .fail
 
mov [eax+UART.state], UART_CLOSED
mov [eax+UART.lock], 0 ;release port
xor eax, eax
ret
.fail:
or eax, -1
ret
 
 
; param
; eax= uart
; ebx= baud rate
 
align 4
set_rate:
cmp ebx, RATE_115200
ja .fail
 
mov [eax+UART.rate], ebx
mov bx, [divisor+ebx*2]
 
mov edx, [eax+UART.base]
add edx, LCR_REG
in al, dx
push eax
or al, 0x80
out dx, al
 
sub edx, LCR_REG
mov al, bl
out dx, al
 
inc edx
mov al, bh
out dx, al
 
pop eax
add edx, LCR_REG-1
out dx, al
.fail:
ret
 
 
; param
; ebx= uart
 
align 4
transmit:
push esi
push edi
 
mov edx, [ebx+UART.base]
 
pushfd
cli
 
mov esi, [ebx+UART.xmit_rp]
mov ecx, [ebx+UART.xmit_count]
test ecx, ecx
je .stop
 
cmp ecx, 16
jbe @F
mov ecx, 16
@@:
sub [ebx+UART.xmit_count], ecx
add [ebx+UART.xmit_free], ecx
cld
@@:
lodsb
out dx, al
dec ecx
jnz @B
 
cmp esi,[ebx+UART.xmit_top]
jb @F
sub esi, 8192
@@:
mov [ebx+UART.xmit_rp], esi
 
cmp [ebx+UART.xmit_count], 0
je .stop
 
mov [ebx+UART.state], UART_TRANSMIT
jmp @F
.stop:
mov [ebx+UART.state], UART_STOP
@@:
popfd
pop edi
pop esi
ret
 
 
; param
; esi= input buffer
; +0 connection
; +4 dst buffer
; +8 dst size
; edi= output buffer
; +0 bytes read
 
; retval
; eax= error code
 
align 4
uart_read:
mov eax, [esi]
cmp [eax+APPOBJ.magic], 'CNCT'
jne .fail
 
cmp [eax+APPOBJ.destroy], uart_close.destroy
jne .fail
 
mov eax, [eax+CONNECTION.uart]
test eax, eax
jz .fail
 
mov ebx, [esi+8] ;dst size
mov ecx, [eax+UART.rcvr_count]
cmp ecx, ebx
jbe @F
mov ecx, ebx
@@:
mov [edi], ecx ;bytes read
test ecx, ecx
jz .done
 
push ecx
 
mov edi, [esi+4] ;dst
mov esi, [eax+UART.rcvr_rp]
cld
rep movsb
pop ecx
 
cmp esi, [eax+UART.rcvr_top]
jb @F
sub esi, 8192
@@:
mov [eax+UART.rcvr_rp], esi
sub [eax+UART.rcvr_count], ecx
.done:
xor eax, eax
ret
.fail:
or eax, -1
ret
 
; param
; esi= input buffer
; +0 connection
; +4 src buffer
; +8 src size
;
; retval
; eax= error code
 
align 4
uart_write:
mov eax, [esi]
cmp [eax+APPOBJ.magic], 'CNCT'
jne .fail
 
cmp [eax+APPOBJ.destroy], uart_close.destroy
jne .fail
 
mov eax, [eax+CONNECTION.uart]
test eax, eax
jz .fail
 
mov ebx, [esi+4]
mov edx, [esi+8]
 
; param
; eax= uart
; ebx= src
; edx= count
 
align 4
.internal:
mov esi, ebx
mov edi, [eax+UART.xmit_wp]
.write:
test edx, edx
jz .fail
.wait:
cmp [eax+UART.xmit_free], 0
jne .fill
 
cmp [eax+UART.state], UART_TRANSMIT
je .wait
 
mov ebx, eax
push edx
call transmit
pop edx
mov eax, ebx
jmp .write
.fill:
mov ecx, [eax+UART.xmit_free]
cmp ecx, edx
jbe @F
mov ecx, edx
@@:
push ecx
cld
rep movsb
pop ecx
sub [eax+UART.xmit_free], ecx
add [eax+UART.xmit_count], ecx
sub edx, ecx
jnz .wait
.done:
cmp edi, [eax+UART.xmit_top]
jb @F
sub edi, 8192
@@:
mov [eax+UART.xmit_wp], edi
cmp [eax+UART.state], UART_TRANSMIT
je @F
mov ebx, eax
call transmit
@@:
xor eax, eax
ret
.fail:
or eax, -1
ret
 
 
align 4
com_2_isr:
mov ebx, [com2]
jmp com_1_isr.get_info
align 4
com_1_isr:
mov ebx, [com1]
.get_info:
mov edx, [ebx+UART.base]
add edx, IIR_REG
in al, dx
 
test al, IIR_INTR
jnz .done
 
shr eax, 1
and eax, 3
 
call [isr_action+eax*4]
jmp .get_info
.done:
ret
 
align 4
isr_line:
mov edx, [ebx+UART.base]
add edx, LSR_REG
in al, dx
ret
 
align 4
isr_recieve:
mov esi, [ebx+UART.base]
add esi, LSR_REG
mov edi, [ebx+UART.rcvr_wp]
xor ecx, ecx
cld
.read:
mov edx, esi
in al, dx
test eax, LSR_DR
jz .done
 
mov edx, [ebx+UART.base]
in al, dx
stosb
inc ecx
jmp .read
.done:
cmp edi, [ebx+UART.rcvr_top]
jb @F
sub edi, 8192
@@:
mov [ebx+UART.rcvr_wp], edi
add [ebx+UART.rcvr_count], ecx
ret
 
align 4
isr_modem:
mov edx, [ebx+UART.base]
add edx, MSR_REG
in al, dx
ret
 
 
align 4
com1 dd 0
com2 dd 0
 
align 4
uart_func dd 0 ;SRV_GETVERSION
dd 0 ;PORT_OPEN
dd uart_close ;PORT_CLOSE
dd uart_reset ;PORT_RESET
dd uart_set_mode ;PORT_SETMODE
dd 0 ;PORT_GETMODE
dd uart_set_mcr ;PORT_SETMODEM
dd 0 ;PORT_GETMODEM
dd uart_read ;PORT_READ
dd uart_write ;PORT_WRITE
 
isr_action dd isr_modem
dd transmit
dd isr_recieve
dd isr_line
 
;version dd 0x00040000
 
divisor dw 2304, 1536, 1047, 857, 768, 384
dw 192, 96, 64, 58, 48, 32
dw 24, 16, 12, 6, 3, 2, 1
 
 
 
sz_uart_srv db 'UART',0
 
 
 
/kernel/branches/flat_kernel/drivers/vmode.asm
0,0 → 1,736
;
; MenuetOS Driver (vmode.mdr)
; Target: Vertical Refresh Rate programming and videomode changing
;
; Author: Trans <<<<<13>>>>>
; Date: 20.07.2003
;
; Version: 1.0
; OS: MenuetOS
; Compiler: FASM
;
 
OS_BASE equ 0x80000000
 
use32
 
macro align value { rb (value-1) - ($ + value-1) mod value }
 
org 0x80760000
 
headerstart=$
 
mdid db 'MDAZ' ; 4 byte id
mdhver dd 0x00 ; header version
mdcode dd MDSTART ; start of code
mdver dd 0x00000001 ; driver version (subversion*65536+version)
mdname db 'Trans VideoDriver' ; 32 bytes of full driver name
times (32-($-mdname)) db ' ' ;
 
headerlen=$-headerstart
times (256-headerlen) db 0 ; reserved area for future
 
MDSTART: ; start of driver code ( base_adr+256 bytes)
; ebx(=ecx in program):
; 1 - Get DriverInfo and Driver Initial Set
; 2 - Get Current Video Mode With Vertical Refresh Rate
; 3 - Change Video Mode
; 4 - Return at Start System Video Mode
; 5 - Change vertical and horizontal size of visible screen area
; 6 - Change Vert/Hor position visible area on screen (not complete yet)
;
; MAXF - ...
MAXF=5
 
;-------Main Manager-------------
pushad
cmp ebx,1
jb mdvm_00
cmp ebx,MAXF
ja mdvm_00
shl ebx,2
add ebx,mdvm_func_table
call dword [ebx]
mov [esp+28],eax
mov [esp+24],ecx
mov [esp+20],edx
mov [esp+16],ebx
popad
retn
mdvm_00:
popad
xor eax,eax
dec eax
retn
 
; ------Drivers Functions----------
 
align 4
 
; EBX=1 (in applications ECX=1)- Get DriverInfo and Driver Initial Set
;
; IN: ecx (in app. edx) - pointer to 512-bytes info area in application
; OUT:
;
vm_info_init:
push ecx
cmp [mdrvm],dword 0
jnz .vmii_00
call vm_safe_reg
call vm_get_initial_videomode
mov eax,[initvm]
mov [currvm],eax
call vm_search_sys_func_table
call vm_get_cur_vert_rate
mov [initrr],eax
call vm_calc_pixelclock
call vm_calc_refrate
inc [mdrvm]
.vmii_00:
pop ecx
call vm_transfer_drv_info
mov ebx,dword [refrate]
mov eax,dword [mdid] ;dword [systlb]
retn
 
 
align 4
 
; EBX=2 (in applications ECX=2)- Get Current Video Mode
;
; OUT: eax = X_screen*65536+Y_screen
; ebx = current vertical rate
; ecx = current video mode (number)
vm_get_cur_mode:
cmp [mdrvm],dword 0
jz .vmgcm_00
call vm_get_cur_vert_rate
mov eax,[OS_BASE+0FE00h]
mov ebx,[OS_BASE+0FE04h]
shl eax,16
add eax,ebx
add eax,00010001h
mov ebx,[refrate]
mov ecx,[currvm]
retn
.vmgcm_00:
xor eax,eax
dec eax
retn
 
 
align 4
 
; EBX=3 (in applications ECX=3)- Change Video Mode
;
; IN: ecx = VertRate*65536+VideoMode
; OUT: eax = 0 if no error
;
vm_set_video_mode:
cmp [mdrvm],dword 0
jz .vmsvm_00
call vm_set_selected_mode
; xor eax,eax
retn
.vmsvm_00:
xor eax,eax
dec eax
retn
 
 
align 4
 
; EBX=4 (in applications ECX=4)- Return at Start System Video Mode
;
; IN:
; OUT: eax = = 0 if no error
;
vm_restore_init_video_mode:
cmp [mdrvm],dword 0
jz .vmrivm_00
call vm_restore_reg
xor eax,eax
retn
.vmrivm_00:
xor eax,eax
dec eax
retn
 
 
align 4
 
; EBX=5 (in applications ECX=5)- Change vertical and horizontal size
; of visible screen area
; IN: ecx (in app. edx) = 0/1 - -/+ horizontal size on 1 position
; = 2/3 - -/+ vertical size on 1 position (8 pixels)
; ^-^----- not complete yet
; OUT: eax = = 0 if no error
;
vm_change_screen_size:
cmp [mdrvm],dword 0
jz .vmcss_00
cmp cl,1
ja .vmcss_01
mov eax,ecx
call vm_inc_dec_width
xor eax,eax
retn
.vmcss_01:
and ecx,01h
mov eax,ecx
; call vm_inc_dec_high ; not complete yet
xor eax,eax
retn
.vmcss_00:
xor eax,eax
dec eax
retn
 
 
align 4
 
; EBX=6 (in applications ECX=6)- Change Vert/Hor position visible area on screen
;
; IN: ecx (in app. edx) = 0/1 - -/+ horizontal position on 1 point
; = 2/3 - -/+ vertical position on 1 pixel
; ^-^----- not complete yet
; OUT: eax = 0 if no error
;
vm_change_position_screen:
cmp [mdrvm],dword 0
jz .vmcps_00
; ...
xor eax,eax
retn
.vmcps_00:
xor eax,eax
dec eax
retn
 
 
;-----Drivers Subfunctions---------
 
;
; Searching i40 system functions pointer table in kernel area location
;
vm_search_sys_func_table:
push eax ; eax - current value
push ecx ; ecx - will be counter of equevalent value
push edx ; edx - last value
push esi ; esi - current address
xor ecx,ecx
mov esi,OS_BASE+010000h ; Start address of kernel location
lodsd
mov edx,eax
cld
.vmssft_00:
cmp esi,OS_BASE+30000h
ja .vmssft_03
inc ecx
lodsd
cmp edx,eax
mov edx,eax
je .vmssft_00
cmp ecx,128
ja .vmssft_02
.vmssft_01:
xor ecx,ecx
jmp .vmssft_00
.vmssft_02:
cmp edx,0
je .vmssft_01
sub esi,256*4-1
mov [systlb],esi
xor ecx,ecx
.vmssft_03_0:
inc ecx
lodsd
cmp edx,eax
mov edx,eax
jne .vmssft_03_0
mov esi,dword [systlb]
cmp cx,60
jae .vmssft_03
add esi,256*4-4
lodsb
mov edx,eax
jmp .vmssft_01
.vmssft_03:
mov [systlb],esi
pop esi
pop edx
pop ecx
pop eax
retn
 
; IN:
; OUT: eax= vertical rate in Hz
vm_get_cur_vert_rate:
push edx
push ebx
xor eax,eax
mov edx,eax
mov ebx,eax
mov dx,03DAh
.vmgcvt_00:
in al,dx
test al,8
jz .vmgcvt_00
.vmgcvt_01:
in al,dx
test al,8
jnz .vmgcvt_01
mov ebx,edx
rdtsc
mov edx,ebx
mov ebx,eax
.vmgcvt_02:
in al,dx
test al,8
jz .vmgcvt_02
.vmgcvt_03:
in al,dx
test al,8
jnz .vmgcvt_03
rdtsc
sub eax,ebx
mov ebx,eax
mov eax,[OS_BASE+0F600h]
xor edx,edx
div ebx
inc eax
mov [refrate],eax
pop ebx
pop edx
retn
 
vm_calc_pixelclock:
push ebx
push edx
xor eax,eax
mov al,[_00]
add ax,5
shl eax,3
xor ebx,ebx
mov bl,[_06]
mov bh,[_07]
and bh,00100001b
btr bx,13
jnc .vmcpc_00
or bh,2
.vmcpc_00:
xor edx,edx
mul ebx
xor edx,edx
mul [initrr]
mov [pclock],eax
pop edx
pop ebx
retn
 
;
; Safe of initial CRTC state
;
vm_safe_reg:
push edx
push ebx
push ecx
push edi
cli
mov dx,3d4h ; CRTC
mov al,11h
out dx,al
inc dx
in al,dx
and al,7fh
out dx,al ; Clear protection bit
dec dx
xor ecx,ecx
mov cl,19h
xor bl,bl
mov edi,CRTCreg
.vmsr_00:
mov al,bl
out dx,al
inc dx
in al,dx
dec dx
stosb
inc bl
loop .vmsr_00
sti
pop edi
pop ecx
pop ebx
pop edx
retn
 
;
; Restore of initial CRTC state
;
vm_restore_reg:
push eax
push ebx
push edx
push esi
mov eax,[oldX]
mov [OS_BASE+0FE00h],eax
mov eax,[oldY]
mov [OS_BASE+0FE04h],eax
mov dx,03dah
.vmrr_00:
in al,dx
test al,8
jnz .vmrr_00
.vmrr_01:
in al,dx
test al,8
jnz .vmrr_01
cli
mov dx,03c4h
mov ax,0101h
out dx,ax
mov dx,3d4h ; CRTC
mov al,11h
out dx,al
inc dx
in al,dx
and al,7fh ; Clear Protection bit
out dx,al
dec dx
xor ecx,ecx
mov cl,19h
mov esi,CRTCreg
xor bl,bl
.vmrr_02:
lodsb
mov ah,al
mov al,bl
out dx,ax
inc bl
loop .vmrr_02
sti
; call ref_screen
pop esi
pop edx
pop ecx
pop eax
retn
 
; Calculate of possible vertical refrash rate
; (light version of function)
vm_calc_refrate:
push ebx
push ecx
push edx
push edi
push esi
mov eax,[pclock]
xor edx,edx
mov edi,_m1
mov ebx,eax
mov ecx,(1696*1065)
div ecx
xor edx,edx
stosw
add edi,8
mov eax,ebx
mov ecx,(1344*804)
div ecx
xor edx,edx
stosw
add edi,8
mov eax,ebx
mov ecx,(1056*636)
div ecx
xor edx,edx
stosw
add edi,8
mov eax,ebx
mov ecx,(800*524)
div ecx
xor edx,edx
stosw
mov edi,_m1
mov esi,edi
mov ecx,5*4
.vmcrr_00:
lodsw
cmp ax,55
jb .vmcrr_01
stosw
loop .vmcrr_00
pop esi
pop edi
pop edx
pop ecx
pop ebx
retn
.vmcrr_01:
xor ax,ax
stosw
loop .vmcrr_00
pop esi
pop edi
pop edx
pop ecx
pop ebx
retn
 
vm_get_initial_videomode:
push eax
mov eax,dword [OS_BASE+0FE00h]
mov [oldX],eax
mov eax,dword [OS_BASE+0FE04h]
mov [oldY],eax
mov eax,dword [OS_BASE+0FE0Ch] ; initial video mode
and ax,01FFh
mov dword [initvm],eax
pop eax
retn
 
 
; IN: eax = 0/1 - -/+ 1 position of width
vm_inc_dec_width:
push ebx
push edx
mov ebx,eax
mov dx,3d4h ; CRTC
mov al,11h
out dx,al
inc dx
in al,dx
and al,7fh ; Clear Protection bit
out dx,al
dec dx
xor al,al
out dx,al
inc dx
in al,dx
dec al
cmp bl,0
jnz .vmidr_00
inc al
inc al
.vmidr_00:
out dx,al
pop edx
pop ebx
retn
 
;
; Copy driver info to application area
;
; IN: ecx (in app. edx) - pointer to 512-bytes info area in application
; OUT:
vm_transfer_drv_info:
push ecx
push edi
push esi
mov eax,ecx
xor ecx,ecx
mov cl,32/4
mov esi,mdname
mov edi,drvname
rep movsd
mov ecx,eax
mov eax,[mdver]
mov [drvver],eax
mov edi,[OS_BASE+3010h]
mov edi,[edi+10h]
add edi,ecx
mov esi,drvinfo
xor ecx,ecx
mov cx,512
rep movsb
pop esi
pop edi
pop ecx
retn
 
 
;
; Set selected video mode
; (light version)
;
; IN: ecx = VertRate*65536+VideoMode
;
vm_set_selected_mode:
push edx
push ecx
push esi
ror ecx,16
cmp cx,00h
je .vmssm_03
rol ecx,16
mov eax,ecx
shl eax,16
shr eax,16
mov [currvm],eax
cmp cx,112h
jne .vmssm_00
mov esi,mode0
mov ecx,639
mov edx,479
jmp .vmssm_st00
.vmssm_00:
cmp cx,115h
jne .vmssm_01
mov esi,mode1
mov ecx,799
mov edx,599
jmp .vmssm_st00
.vmssm_01:
cmp cx,118h
jne .vmssm_02
mov esi,mode2
mov ecx,1023
mov edx,767
jmp .vmssm_st00
.vmssm_02:
cmp cx,11Bh
jne .vmssm_03
mov esi,mode2
mov ecx,1279
mov edx,1023
jmp .vmssm_st00
.vmssm_03:
xor eax,eax
dec eax
pop esi
pop ecx
pop edx
retn
.vmssm_st00:
mov [OS_BASE+0FE00h],ecx
mov [OS_BASE+0FE04h],edx
cli
mov dx,03c4h
lodsw
out dx,ax
mov dx,03d4h
mov al,11h
out dx,al
inc dx
in al,dx
and al,7fh
out dx,al
dec dx
mov ecx,13
.vmssm_st01:
lodsw
out dx,ax
loop .vmssm_st01
sti
xor eax,eax
pop esi
pop ecx
pop edx
retn
 
 
;------------DATA AREA---------------
align 4
 
mdvm_func_table:
dd MDSTART
dd vm_info_init, vm_get_cur_mode
dd vm_set_video_mode, vm_restore_init_video_mode
dd vm_change_screen_size, vm_change_position_screen
 
 
CRTCreg:
_00 db ?
_01 db ?
_02 db ?
_03 db ?
_04 db ?
_05 db ?
_06 db ?
_07 db ?
_08 db ?
_09 db ?
_0a db ?
_0b db ?
_0c db ?
_0d db ?
_0e db ?
_0f db ?
_10 db ?
_11 db ?
_12 db ?
_13 db ?
_14 db ?
_15 db ?
_16 db ?
_17 db ?
_18 db ?
_19 db ?
 
align 4
 
oldX dd ?
oldY dd ?
initvm dd ?
currvm dd 0
refrate dd 0
initrr dd 0
systlb dd 0
pclock dd ?
mdrvm dd 0 ; 0 - not drv init yet, 1 - already drv init
 
 
drvinfo:
drvname: times 32 db ' '
drvver dd 0
times (32-($-drvver))/4 dd 0
drvmode dw 011Bh,0118h,0115h,0112h
times (64-($-drvmode))/2 dw 00h
_m1 dw 0,0,0,0,0
_m2 dw 0,0,0,0,0
_m3 dw 0,0,0,0,0
_m4 dw 0,0,0,0,0
_m5 dw 0,0,0,0,0
times (512-($-drvinfo)) db 0
drvinfoend:
 
 
;1280x1024 - 11Bh
mode3:
dw 0101h
dw 0d000h,9f01h,9f02h,9303h,0a904h,1905h,2806h,5a07h
dw 0110h,8411h,0ff12h,0ff15h,2916h
 
;1024x768 - 118h
mode2:
dw 0101h
dw 0a400h,7f01h,7f02h,8703h,8404h,9505h,2406h,0f507h
dw 0310h,8911h,0ff12h,0ff15h,2516h
 
;800x600 - 115h
mode1:
dw 0101h
dw 8000h,6301h,6302h,8303h,6a04h,1a05h,7206h,0f007h
dw 5910h,8d11h,5712h,5715h,7316h
 
;640x480 - 112h, 12h
mode0:
dw 0101h
dw 6000h,4f01h,4f02h,8303h,5304h,9f05h,00b06h,3e07h
dw 0ea10h,8c11h,0df12h,0df15h,0c16h
 
; 640x400
;mymode0:
; dw 0101h
;_0_7 dw 5f00h,4f01h,4f02h,8303h,5304h,9f05h,0BF06h,1f07h
; dw 9c10h,8e11h,8f12h,9615h,0B916h ;,4013h
 
; 640x800
;mymode1:
; dw 0101h
; dw 5f00h,4f01h,4f02h,8003h,5004h,9f05h,06006h,0FF07h
; dw 2d10h,8f11h,2012h,2615h,05716h ;,4013h
 
 
DRVM_END:
 
/kernel/branches/flat_kernel/vmodeint.inc
19,7 → 19,7
pushd [ScreenWidth] [ScreenHeight]
popd [old_screen_height] [old_screen_width]
or eax,-1 ; If driver is absent then eax does not change
call 0x760100 ; Entry point of video driver
call OS_BASE+0x760100 ; Entry point of video driver
mov [esp+36],eax
mov [esp+24],ebx
mov [esp+32],ecx