; standard driver stuff
format MS COFF
DEBUG = 1
; this is for DEBUGF macro from 'fdo.inc'
__DEBUG__ = 1
__DEBUG_LEVEL__ = 1
include '../proc32.inc'
include '../imports.inc'
include '../fdo.inc'
include '../../struct.inc'
public START
public version
; USB constants
DEVICE_DESCR_TYPE = 1
CONFIG_DESCR_TYPE = 2
STRING_DESCR_TYPE = 3
INTERFACE_DESCR_TYPE = 4
ENDPOINT_DESCR_TYPE = 5
DEVICE_QUALIFIER_DESCR_TYPE = 6
CONTROL_PIPE = 0
ISOCHRONOUS_PIPE = 1
BULK_PIPE = 2
INTERRUPT_PIPE = 3
; USB HID constants
HID_DESCR_TYPE = 21h
REPORT_DESCR_TYPE = 22h
PHYSICAL_DESCR_TYPE = 23h
; LibUSB constatnts
LIBUSB_REQUEST_TYPE_STANDARD = (0x00 shl 5)
LIBUSB_REQUEST_TYPE_CLASS = (0x01 shl 5)
LIBUSB_REQUEST_TYPE_VENDOR = (0x02 shl 5)
LIBUSB_REQUEST_TYPE_RESERVED = (0x03 shl 5)
LIBUSB_RECIPIENT_DEVICE = 0x00
LIBUSB_RECIPIENT_INTERFACE = 0x01
LIBUSB_RECIPIENT_ENDPOINT = 0x02
LIBUSB_RECIPIENT_OTHER = 0x03
LIBUSB_ENDPOINT_IN = 0x80
LIBUSB_ENDPOINT_OUT = 0x00
; FTDI Constants
FTDI_DEVICE_OUT_REQTYPE = (LIBUSB_REQUEST_TYPE_VENDOR or LIBUSB_RECIPIENT_DEVICE or LIBUSB_ENDPOINT_OUT)
FTDI_DEVICE_IN_REQTYPE = (LIBUSB_REQUEST_TYPE_VENDOR or LIBUSB_RECIPIENT_DEVICE or LIBUSB_ENDPOINT_IN)
; Requests
;Definitions for flow control
SIO_RESET =0 ;Reset the port
SIO_MODEM_CTRL =1 ;Set the modem control register
SIO_SET_FLOW_CTRL =2 ;Set flow control register
SIO_SET_BAUD_RATE =3 ;Set baud rate
SIO_SET_DATA =4 ;Set the data characteristics of the port
SIO_RESET_REQUEST =SIO_RESET
SIO_SET_BAUDRATE_REQUEST =SIO_SET_BAUD_RATE
SIO_SET_DATA_REQUEST =SIO_SET_DATA
SIO_SET_FLOW_CTRL_REQUEST =SIO_SET_FLOW_CTRL
SIO_SET_MODEM_CTRL_REQUEST =SIO_MODEM_CTRL
SIO_POLL_MODEM_STATUS_REQUEST=0x05
SIO_SET_EVENT_CHAR_REQUEST =0x06
SIO_SET_ERROR_CHAR_REQUEST =0x07
SIO_SET_LATENCY_TIMER_REQUEST=0x09
SIO_GET_LATENCY_TIMER_REQUEST=0x0A
SIO_SET_BITMODE_REQUEST =0x0B
SIO_READ_PINS_REQUEST =0x0C
SIO_READ_EEPROM_REQUEST =0x90
SIO_WRITE_EEPROM_REQUEST =0x91
SIO_ERASE_EEPROM_REQUEST =0x92
SIO_RESET_SIO=0
SIO_RESET_PURGE_RX=1
SIO_RESET_PURGE_TX=2
SIO_DISABLE_FLOW_CTRL=0x0
SIO_RTS_CTS_HS =(0x1 shl 8)
SIO_DTR_DSR_HS =(0x2 shl 8)
SIO_XON_XOFF_HS=(0x4 shl 8)
SIO_SET_DTR_MASK=0x1
SIO_SET_DTR_HIGH=( 1 or ( SIO_SET_DTR_MASK shl 8))
SIO_SET_DTR_LOW =( 0 or ( SIO_SET_DTR_MASK shl 8))
SIO_SET_RTS_MASK=0x2
SIO_SET_RTS_HIGH=( 2 or ( SIO_SET_RTS_MASK shl 8 ))
SIO_SET_RTS_LOW =( 0 or ( SIO_SET_RTS_MASK shl 8 ))
SIO_RTS_CTS_HS =(0x1 shl 8)
;strings
my_driver db 'usbother',0
nomemory_msg db 'K : no memory',13,10,0
; Structures
struct ftdi_context
chipType db ?
baudrate dd ?
bitbangEnabled db ?
readBufPtr dd ?
readBufOffs dd ?
readBufChunkSize dd ?
writeBufChunkSize dd ?
interface dd ?
index dd ?
inEP dd ?
outEP dd ?
nullP dd ?
next_context dd ?
ends
struct IOCTL
handle dd ?
io_code dd ?
input dd ?
inp_size dd ?
output dd ?
out_size dd ?
ends
struct usb_descr
bcdUSB dw ?
bDeviceClass db ?
bDeviceSubClass db ?
bDeviceProtocol db ?
bMaxPacketSize0 db ?
idVendor dw ?
idProduct dw ?
bcdDevice dw ?
iManufacturer db ?
iProduct db ?
iSerialNumber db ?
bNumConfigurations db ?
ends
section '.flat' code readable align 16
; The start procedure.
proc START stdcall, .reason:DWORD
xor eax, eax ; initialize return value
cmp [.reason], 1 ; compare the argument
jnz .nothing
call linkedlist.init
stdcall RegUSBDriver, my_driver, service_proc, usb_functions
.nothing:
ret 4
endp
proc AddDevice stdcall uses ebx, .config_pipe:DWORD, .config_descr:DWORD, .interface:DWORD
stdcall USBGetParam, [.config_pipe], 0
cmp [eax+usb_descr.idVendor], 0x0403
jnz .notftdi
DEBUGF 1,'K : FTDI USB device detected\n'
movi eax, sizeof.ftdi_context
call Kmalloc
test eax, eax
jnz @f
mov esi, nomemory_msg
call SysMsgBoardStr
xor eax, eax
jmp .nothing
@@:
DEBUGF 1,'K : Adding struct to list %x\n', eax
call linkedlist.add
mov ebx, [.config_pipe]
mov [eax + ftdi_context.nullP], ebx
DEBUGF 1,'K : Open first pipe\n'
mov ebx, eax
stdcall USBOpenPipe, [.config_pipe], 0x81, 0x40, BULK_PIPE, 0
mov [ebx + ftdi_context.inEP], eax
DEBUGF 1,'K : Open second pipe\n'
stdcall USBOpenPipe, [.config_pipe], 0x02, 0x40, BULK_PIPE, 0
mov [ebx + ftdi_context.outEP], eax
.nothing:
ret
.notftdi:
DEBUGF 1,'K : Skipping not FTDI device\n'
xor eax, eax
ret
endp
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
align 4
proc service_proc stdcall uses ebx esi edi, ioctl:DWORD
locals
ConfPacket rb 8
EventData rd 2
endl
mov edi, [ioctl]
mov eax, [edi + io_code]
DEBUGF 1,'K : FTDI got the request: %d\n', eax
test eax, eax ;0
jz .version
dec eax ;1
jz .ftdi_get_list
dec eax ;2
jz .ftdi_set_bitmode
.version:
.endswitch:
xor eax, eax
ret
.ftdi_set_bitmode:
DEBUGF 1,'K : FTDI Seting bitmode\n'
call CreateEvent
DEBUGF 1,'K : Event created %x %x\n' , eax, edx
mov [EventData], eax
mov [EventData+1], edx
mov si, (FTDI_DEVICE_IN_REQTYPE) + (SIO_SET_BITMODE_REQUEST shl 8)
mov word[ConfPacket], si
mov edi, [edi+input]
mov si, word[edi+1]
DEBUGF 1,'K : Pin value is %x\n', si
mov word[ConfPacket+4], si
mov ebx, [edi]
lea esi, [ConfPacket]
lea edi, [EventData]
stdcall USBControlTransferAsync, [ebx + ftdi_context.nullP], esi, 0, 0, control_callback, edi, 0
DEBUGF 1, 'K : Returned value is %d\n', eax
call WaitEvent
jmp .endswitch
.ftdi_read_pins:
DEBUGF 1,'K : FTDI Reading pins\n'
call CreateEvent
mov [EventData], eax
mov [EventData+1], edx
mov eax, FTDI_DEVICE_IN_REQTYPE + (SIO_READ_PINS_REQUEST shl 8)
mov dword[ConfPacket], eax
jmp .endswitch
.ftdi_get_list:
call linkedlist.gethead
DEBUGF 1, 'K : FTDI Device pointer %x\n' , eax
mov edi, [edi+output]
mov edi, eax
mov eax, 4
mov edi, [ioctl]
mov [edi+out_size], eax
jmp .endswitch
endp
restore handle
restore io_code
restore input
restore inp_size
restore output
restore out_size
align 4
proc control_callback stdcall uses ebx, .pipe:DWORD, .status:DWORD, .buffer:DWORD, .length:DWORD, .calldata:DWORD
mov eax, [.calldata]
mov ebx, [.calldata+1]
call RaiseEvent
DEBUGF 1, 'K : status is %d\n', [.status+24h]
ret
endp
proc DeviceDisconnected stdcall uses ebx esi edi, .device_data:DWORD
DEBUGF 1, 'K : FTDI deleting device data\n'
mov eax, [.device_data]
;call linkedlist.delete
endp
include 'linkedlist.inc'
; Exported variable: kernel API version.
align 4
version dd 50005h
; Structure with callback functions.
usb_functions:
dd 12
dd AddDevice
dd DeviceDisconnected
;for DEBUGF macro
include_debug_strings
; for uninitialized data
;section '.data' data readable writable align 16