;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2015-2017. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
format PE DLL native 0.05
entry START
DEBUG = 1
__DEBUG__ = 1
__DEBUG_LEVEL__ = 1 ; 1 = verbose, 2 = errors only
API_VERSION = 0 ;debug
STRIDE = 4 ;size of row in devices table
SRV_GETVERSION = 0
section '.flat' code readable writable executable
include '../proc32.inc'
include '../struct.inc'
include '../macros.inc'
include '../peimport.inc'
include '../fdo.inc'
GPIO_PORT_CONFIG_ADDR = 0xF100
GPIO_DATA_ADDR = 0xF200
ADC_ADDR = 0xFE00
proc START c, state:dword, cmdline:dword
cmp [state], 1
jne .exit
.entry:
push esi
DEBUGF 1,"Loading vortex86EX GPIO driver\n"
call detect
pop esi
test eax, eax
jz .fail
; Set crossbar base address register in southbridge
invoke PciWrite16, [bus], [dev], 0x64, 0x0A00 or 1
; Set GPIO base address register in southbridge
invoke PciWrite16, [bus], [dev], 0x62, GPIO_PORT_CONFIG_ADDR or 1
DEBUGF 1,"Setting up ADC\n"
; Enable ADC
invoke PciRead32, [bus], [dev], 0xBC
and eax, not (1 shl 28)
invoke PciWrite32, [bus], [dev], 0xBC, eax
DEBUGF 1,"1\n"
; Set ADC base address
mov ebx, [dev]
inc ebx
invoke PciRead16, [bus], ebx, 0xDE
or ax, 0x02
invoke PciWrite16, [bus], ebx, 0xDE, eax
invoke PciWrite32, [bus], ebx, 0xE0, 0x00500000 or ADC_ADDR
DEBUGF 1,"2\n"
; set up ADC
mov dx, ADC_ADDR + 1
xor al, al
out dx, al
DEBUGF 1,"3\n"
; Empty FIFO
@@:
mov dx, ADC_ADDR + 2 ; Status register
in al, dx
test al, 0x01 ; FIFO ready
jz @f
mov dx, ADC_ADDR + 4
in ax, dx
jmp @r
@@:
DEBUGF 1,"4\n"
; Enable GPIO0-9
mov dx, GPIO_PORT_CONFIG_ADDR + 0 ; General-Purpose I/O Data & Direction Decode Enable
mov eax, 0x000001ff
out dx, eax
mov ecx, 10 ; 10 GPIO ports total
mov dx, GPIO_PORT_CONFIG_ADDR + 4 ; General-Purpose I/O Port0 Data & Direction Decode Address
mov ax, GPIO_DATA_ADDR
.gpio_init:
; Set GPIO data port base address
out dx, ax
add ax, 2
add dx, 2
; Set GPIO direction base address
out dx, ax
add ax, 2
add dx, 2
; loop
dec ecx
jnz .gpio_init
; Set GPIO0 pin 0 as output
mov al, 0x01
mov dx, GPIO_DATA_ADDR + 0*4 + 2
out dx, al
invoke RegService, my_service, service_proc
ret
.fail:
.exit:
xor eax, eax
ret
endp
proc service_proc stdcall, ioctl:dword
mov ebx, [ioctl]
mov eax, [ebx+IOCTL.io_code]
cmp eax, SRV_GETVERSION
jne @F
mov eax, [ebx+IOCTL.output]
cmp [ebx+IOCTL.out_size], 4
jne .fail
mov dword [eax], API_VERSION
xor eax, eax
ret
@@:
cmp eax, 1 ; read GPIO P0
jne .no_gpioread
mov dx, GPIO_DATA_ADDR + 0x00
in al, dx
ret
.no_gpioread:
cmp eax, 2 ; write GPIO P0
jne .no_gpiowrite
mov eax, [ebx + IOCTL.input]
mov dx, GPIO_DATA_ADDR + 0x00
out dx, al
xor eax, eax
ret
.no_gpiowrite:
cmp eax, 3 ; read ADC channel 0
jne .no_adcread
mov dx, ADC_ADDR + 1
mov al, 1 shl 3 ; Power down ADC
out dx, al
mov dx, ADC_ADDR + 0 ; AUX channel select register
mov al, 1 shl 0 ; Enable AUX0 scan
out dx, al
mov dx, ADC_ADDR + 1
mov al, 1 shl 0 ; Single shot, no interrupts, start
out dx, al
mov dx, ADC_ADDR + 2
@@:
in al, dx
test al, 1 shl 0 ; data ready?
jz @r
mov dx, ADC_ADDR + 4
in ax, dx ; read the data and return to user call
DEBUGF 1, "ADC read: 0x%x\n", eax:4
ret
.no_adcread:
.fail:
or eax, -1
ret
endp
proc detect
push ebx
invoke GetPCIList
mov ebx, eax
.next_dev:
mov eax, [eax+PCIDEV.fd]
cmp eax, ebx
jz .err
mov edx, [eax+PCIDEV.vendor_device_id]
mov esi, devices
@@:
cmp dword [esi], 0
jz .next_dev
cmp edx, [esi]
jz .found
add esi, STRIDE
jmp @B
.found:
movzx ebx, [eax+PCIDEV.devfn]
mov [dev], ebx
movzx ebx, [eax+PCIDEV.bus]
mov [bus], ebx
xor eax, eax
inc eax
pop ebx
ret
.err:
DEBUGF 1,"Could not find vortex86EX south bridge!\n"
xor eax, eax
pop ebx
ret
endp
DEVICE_ID = 6011h
VENDOR_ID = 17F3h
;all initialized data place here
align 4
devices dd (DEVICE_ID shl 16)+VENDOR_ID
dd 0 ;terminator
my_service db '86DUINO-GPIO',0 ;max 16 chars include zero
include_debug_strings ; All data wich FDO uses will be included here
dev dd ?
bus dd ?
align 4
data fixups
end data