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Regard whitespace Rev 1586 → Rev 1587

/kernel/branches/Kolibri-A/trunk/bus/pci/pci32.inc
1,6 → 1,6
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; ;;
8,13 → 8,11
;; ;;
;; 32 bit PCI driver code ;;
;; ;;
;; Version 0.4 February 2nd, 2010 ;;
;; Version 0.3 April 9, 2007 ;;
;; Version 0.2 December 21st, 2002 ;;
;; ;;
;; Author: Victor Prodan, victorprodan@yahoo.com ;;
;; Mihailov Ilia, ghost.nsk@gmail.com ;;
;; Artem Jerdev, kolibri@jerdev.co.uk ;;
;; Credits: ;;
;; Ralf Brown ;;
;; Mike Hibbett, mikeh@oceanfree.net ;;
32,64 → 30,116
; Description
; entry point for system PCI calls
;***************************************************************************
mmio_pci_addr dw 0x400 ; default PCI device bdf-address
mmio_pci_addr equ 0x400 ; set actual PCI address here to activate user-MMIO
 
iglobal
align 4
f62call:
dd pci_api.0
dd pci_api.1
dd pci_api.2
dd pci_api.not_support ;3
dd pci_read_reg ;4 byte
dd pci_read_reg ;5 word
dd pci_read_reg ;6 dword
dd pci_api.not_support ;7
dd pci_write_reg ;8 byte
dd pci_write_reg ;9 word
dd pci_write_reg ;10 dword
if defined mmio_pci_addr
dd pci_mmio_init ;11
dd pci_mmio_map ;12
dd pci_mmio_unmap ;13
end if
f62_rcall:
dd pci_read_reg.0 ;4 byte
dd pci_read_reg.1 ;5 word
dd pci_read_reg.2 ;6 dword
f62_rcall2:
dd pci_read_reg_2.0 ;4 byte
dd pci_read_reg_2.1 ;5 word
dd pci_read_reg_2.2 ;6 dword
f62_wcall:
dd pci_write_reg.0 ;4 byte
dd pci_write_reg.1 ;5 word
dd pci_write_reg.2 ;6 dword
f62_wcall2:
dd pci_write_reg_2.0 ;4 byte
dd pci_write_reg_2.1 ;5 word
dd pci_write_reg_2.2 ;6 dword
endg
 
 
align 4
 
pci_api:
 
movzx eax,bl
cmp [pci_access_enabled],1
jne no_pci_access_for_applications
jne .no_pci_access_for_applications
 
or al,al
jnz pci_fn_1
if defined mmio_pci_addr
cmp eax, 13
jb .not_support
else
cmp eax, 10
jb .not_support
end if
call dword [f62call+eax*4]
mov dword [esp+32],eax
ret
 
 
 
; or al,al
; jnz pci_fn_1
; PCI function 0: get pci version (AH.AL)
.0:
movzx eax,word [BOOT_VAR+0x9022]
ret
 
pci_fn_1:
cmp al,1
jnz pci_fn_2
;pci_fn_1:
; cmp al,1
; jnz pci_fn_2
 
; PCI function 1: get last bus in AL
mov al,[BOOT_VAR+0x9021]
.1:
movzx eax, byte [BOOT_VAR+0x9021]
ret
 
pci_fn_2:
cmp al,2
jne pci_fn_3
;pci_fn_2:
; cmp al,2
; jne pci_fn_3
; PCI function 2: get pci access mechanism
mov al,[BOOT_VAR+0x9020]
.2:
movzx eax, byte [BOOT_VAR+0x9020]
ret
pci_fn_3:
;pci_fn_3:
 
cmp al,4
jz pci_read_reg ;byte
cmp al,5
jz pci_read_reg ;word
cmp al,6
jz pci_read_reg ;dword
; cmp al,4
; jz pci_read_reg ;byte
; cmp al,5
; jz pci_read_reg ;word
; cmp al,6
; jz pci_read_reg ;dword
 
cmp al,8
jz pci_write_reg ;byte
cmp al,9
jz pci_write_reg ;word
cmp al,10
jz pci_write_reg ;dword
; cmp al,8
; jz pci_write_reg ;byte
; cmp al,9
; jz pci_write_reg ;word
; cmp al,10
; jz pci_write_reg ;dword
 
cmp al,11 ; user-level MMIO functions
jz pci_mmio_init
cmp al,12
jz pci_mmio_map
cmp al,13
jz pci_mmio_unmap
;if defined mmio_pci_addr
; cmp al,11 ; user-level MMIO functions
; jz pci_mmio_init
; cmp al,12
; jz pci_mmio_map
; cmp al,13
; jz pci_mmio_unmap
;end if
 
 
no_pci_access_for_applications:
 
.not_support:
.no_pci_access_for_applications:
or eax,-1
 
ret
 
;***************************************************************************
98,20 → 148,20
;
; Description
; creates a command dword for use with the PCI bus
; bus # in ah
; device+func in bh (dddddfff)
; register in bl
; bus # in bh;ah
; device+func in ch;bh (dddddfff)
; register in cl;bl
;
; command dword returned in eax ( 10000000 bbbbbbbb dddddfff rrrrrr00 )
; command dword returned in ebx;eax ( 10000000 bbbbbbbb dddddfff rrrrrr00 )
;***************************************************************************
 
align 4
 
pci_make_config_cmd:
shl eax,8 ; move bus to bits 16-23
mov ax,bx ; combine all
and eax,0xffffff
or eax,0x80000000
shl ebx,8;eax,8 ; move bus to bits 16-23
mov bx,cx;ax,bx ; combine all
and ebx,0xffffff;eax,0xffffff
or ebx,0x80000000;eax,0x80000000
ret
 
;***************************************************************************
128,12 → 178,16
align 4
 
pci_read_reg:
push esi ; save register size into ESI
mov esi,eax
cmp byte [BOOT_VAR+0x9020],2 ;what mechanism will we use?
je pci_read_reg_2
 
; mechanism 1
; push esi ; save register size into ESI
mov esi,ebx;eax
and esi,3
 
call pci_make_config_cmd
mov ebx,eax
mov eax,ebx;ebx,eax
; get current state
mov dx,0xcf8
in eax, dx
147,24 → 201,25
and bl,3
or dl,bl ; add to port address first 2 bits of register address
 
or esi,esi
jz pci_read_byte1
cmp esi,1
jz pci_read_word1
cmp esi,2
jz pci_read_dword1
jmp pci_fin_read1
; or esi,esi
; jz pci_read_byte1
; cmp esi,1
; jz pci_read_word1
; cmp esi,2
; jz pci_read_dword1
; jmp pci_fin_read1
jmp dword [f62_rcall+esi*4]
 
pci_read_byte1:
.0:
in al,dx
jmp pci_fin_read1
pci_read_word1:
jmp .pci_fin_read1
.1:
in ax,dx
jmp pci_fin_read1
pci_read_dword1:
jmp .pci_fin_read1
.2:
in eax,dx
jmp pci_fin_read1
pci_fin_read1:
; jmp pci_fin_read1
.pci_fin_read1:
; restore configuration control
xchg eax,[esp]
mov dx,0xcf8
171,15 → 226,77
out dx,eax
 
pop eax
pop esi
;pop esi
ret
pci_read_reg_2:
 
pci_read_reg_err:
xor eax,eax
dec eax
test ch,128;bh,128 ;mech#2 only supports 16 devices per bus
jnz pci_api.not_support
 
; push esi ; save register size into ESI
mov esi,ebx;eax
and esi,3
 
push ebx;eax
mov eax,ebx
;store current state of config space
mov dx,0xcf8
in al,dx
mov ah,al
mov dl,0xfa
in al,dx
 
xchg eax,[esp]
; out 0xcfa,bus
mov al,ah
out dx,al
; out 0xcf8,0x80
mov dl,0xf8
mov al,0x80
out dx,al
; compute addr
shr ch,3;bh,3 ; func is ignored in mechanism 2
or ch,0xc0;bh,0xc0
mov dx,cx;bx
 
; or esi,esi
; jz pci_read_byte2
; cmp esi,1
; jz pci_read_word2
; cmp esi,2
; jz pci_read_dword2
; jmp pci_fin_read2
jmp dword [f62_rcall2+esi*4]
 
.0:
in al,dx
jmp .pci_fin_read2
.1:
in ax,dx
jmp .pci_fin_read2
.2:
in eax,dx
; jmp pci_fin_read2
 
.pci_fin_read2:
 
; restore configuration space
xchg eax,[esp]
mov dx,0xcfa
out dx,al
mov dl,0xf8
mov al,ah
out dx,al
 
pop eax
; pop esi
ret
 
;pci_read_reg_err:
; or dword [esp+32],-1
; ret
 
 
;***************************************************************************
; Function
; pci_write_reg:
195,12 → 312,17
align 4
 
pci_write_reg:
push esi ; save register size into ESI
mov esi,eax
and esi,3
cmp byte [BOOT_VAR+0x9020],2 ;what mechanism will we use?
je pci_write_reg_2
 
; mechanism 1
; push esi ; save register size into ESI
mov esi,ebx;eax
and esi,3 ;not need
 
call pci_make_config_cmd
mov ebx,eax
mov eax,ebx;ebx,eax
mov ecx,edx ;cross registers
; get current state into ecx
mov dx,0xcf8
in eax, dx
215,24 → 337,24
or dl,bl
mov eax,ecx
 
or esi,esi
jz pci_write_byte1
cmp esi,1
jz pci_write_word1
cmp esi,2
jz pci_write_dword1
jmp pci_fin_write1
 
pci_write_byte1:
; or esi,esi
; jz pci_write_byte1
; cmp esi,1
; jz pci_write_word1
; cmp esi,2
; jz pci_write_dword1
; jmp pci_fin_write1
jmp dword [f62_wcall+esi*4]
.0:
out dx,al
jmp pci_fin_write1
pci_write_word1:
jmp .pci_fin_write1
.1:
out dx,ax
jmp pci_fin_write1
pci_write_dword1:
jmp .pci_fin_write1
.2:
out dx,eax
jmp pci_fin_write1
pci_fin_write1:
.pci_fin_write1:
 
; restore configuration control
pop eax
mov dl,0xf8
239,32 → 361,97
out dx,eax
 
xor eax,eax
pop esi
;pop esi
ret
pci_write_reg_2:
 
pci_write_reg_err:
test ch,128;bh,128 ;mech#2 only supports 16 devices per bus
jnz pci_api.not_support
 
 
; push esi ; save register size into ESI
mov esi,eax
and esi,3 ;not need
 
push eax
mov ecx,edx ;cross registers
;store current state of config space
mov dx,0xcf8
in al,dx
mov ah,al
mov dl,0xfa
in al,dx
xchg eax,[esp]
; out 0xcfa,bus
mov al,ah
out dx,al
; out 0xcf8,0x80
mov dl,0xf8
mov al,0x80
out dx,al
; compute addr
shr bh,3 ; func is ignored in mechanism 2
or bh,0xc0
mov dx,bx
; write register
mov eax,ecx
 
; or esi,esi
; jz pci_write_byte2
; cmp esi,1
; jz pci_write_word2
; cmp esi,2
; jz pci_write_dword2
; jmp pci_fin_write2
jmp dword [f62_wcall2+esi*4]
.0:
out dx,al
jmp .pci_fin_write2
.1:
out dx,ax
jmp .pci_fin_write2
.2:
out dx,eax
.pci_fin_write2:
; restore configuration space
pop eax
mov dx,0xcfa
out dx,al
mov dl,0xf8
mov al,ah
out dx,al
 
xor eax,eax
dec eax
;pop esi
ret
 
;pci_write_reg_err:
; xor eax,eax
; dec eax
; ret
 
if defined mmio_pci_addr ; must be set above
;***************************************************************************
; Function
; pci_mmio_init
;
; Description
; IN: bx = device's PCI bus address (bbbbbbbbdddddfff)
; Returns eax = phys. address of user-accessible DMA block
; IN: cx = device's PCI bus address (bbbbbbbbdddddfff)
; Returns eax = user heap space available (bytes)
; Error codes
; eax = -1 : PCI user access blocked,
; eax = -2 : device not registered for uMMIO service
; eax = -3 : user heap initialization failure
;***************************************************************************
pci_mmio_init:
mov [mmio_pci_addr],bx
 
cmp cx, mmio_pci_addr
jz @f
mov eax,-2
ret
@@:
call init_heap ; (if not initialized yet)
or eax,eax
jz @f
mov eax, [UserDMAaddr]
ret
@@:
mov eax,-3
278,9 → 465,10
; Description
; maps a block of PCI memory to user-accessible linear address
;
; WARNING! This VERY EXPERIMENTAL service is for one chosen PCI device only!
; The target device address should be set in kernel var mmio_pci_addr
;
; IN: ah = BAR#; or
; IN: ah = 0xDA for DMA-mapping requests;
; IN: ah = BAR#;
; IN: ebx = block size (bytes);
; IN: ecx = offset in MMIO block (in 4K-pages, to avoid misaligned pages);
;
296,21 → 484,17
;***************************************************************************
 
pci_mmio_map:
;cross
mov eax,ebx
mov ebx,ecx
mov ecx,edx
;;;;;;;;;;;;;;;;;;;
and edx,0x0ffff
cmp ah, 0xDA
jz .dma_map
cmp ah,6
jc .bar_0_5
jz .bar_rom
mov eax,-2
ret
 
.dma_map:
push ecx
mov ecx,ebx
mov eax,[UserDMAaddr]
jmp .allocate_block
 
.bar_rom:
mov ah, 8 ; bar6 = Expansion ROM base address
.bar_0_5:
322,7 → 506,7
shl bl, 1
shl bl, 1
add bl, 0x10 ; now bl = BAR offset in PCI config. space
mov ax, [mmio_pci_addr]
mov ax, mmio_pci_addr
mov bh, al ; bh = dddddfff
mov al, 2 ; al : DW to read
call pci_read_reg
339,9 → 523,7
pop ecx ; ecx = block size, bytes (expanded to whole page)
mov ebx, ecx ; user_alloc destroys eax, ecx, edx, but saves ebx
and eax, 0xFFFFFFF0
 
.allocate_block:
push eax ; store MMIO physical address + keep the stack 2x4b deep
push eax ; store MMIO physical address + keep 2DWords in the stack
stdcall user_alloc, ecx
or eax, eax
jnz mmio_map_over
360,7 → 542,9
pop edx ; edx = MMIO shift (pages)
shl edx, 12 ; edx = MMIO shift (bytes)
add eax, edx ; eax = uMMIO physical address
or eax, (PG_SHARED+PG_UW+PG_NOCACHE)
or eax, PG_SHARED
or eax, PG_UW
or eax, PG_NOCACHE
mov edi, ebx
call commit_pages
mov eax, edi
382,9 → 566,11
;***************************************************************************
 
pci_mmio_unmap:
stdcall user_free, ebx
stdcall user_free, ecx;ebx
ret
 
end if
 
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
uglobal
align 4
/kernel/branches/Kolibri-A/trunk/core/syscall.inc
99,7 → 99,7
dd 0
dd 0
dd 0
dd sys_pci ; 62-PCI functions
dd 0;sys_pci ; 62-PCI functions
dd sys_msg_board ; 63-System message board
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
170,7 → 170,7
dd undefined_syscall ; 59-reserved
dd sys_IPC ; 60-Inter Process Communication
dd sys_gs ; 61-Direct graphics access
dd cross_order ; 62-PCI functions
dd pci_api;cross_order ; 62-PCI functions
dd cross_order ; 63-System message board
dd sys_resize_app_memory ; 64-Resize application memory usage
dd sys_putimage_palette ; 65-PutImagePalette
/kernel/branches/Kolibri-A/trunk/kernel.asm
4251,15 → 4251,15
ret
 
 
align 4 ; PCI functions
;align 4 ; PCI functions
;
;sys_pci:
;
; call pci_api
; mov [esp+36],eax
; ret
 
sys_pci:
 
call pci_api
mov [esp+36],eax
ret
 
 
align 4 ; system functions
 
syscall_setpixel: ; SetPixel