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usb-windows.c
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usb-windows.c
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/****************************************************************************
File : usb-windows.c
Description : Encapsulates all nonportable, Linux-specific USB I/O code
within the mphidflash program. Each supported operating
system has its own source file, providing a common calling
syntax to the portable sections of the code.
History : 2009-12-26 Thomas Fischl, Dominik Fisch (www.FundF.net)
* Initial windows support
License : Copyright (C) 2009 Thomas Fischl, Dominik Fisch (www.FundF.net)
This file is part of 'mphidflash' program.
'mphidflash' is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, either version
3 of the License, or (at your option) any later version.
'mphidflash' is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public
License along with 'mphidflash' source code. If not,
see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include <stdio.h>
#include <windows.h>
#include <setupapi.h>
#include "mpcanflash.h"
#include "DeviceData.h"
#include "serial.h"
unsigned char usbBufX[65];
unsigned char * usbBuf = &usbBufX[1];
static int currState = 0;
static char cmdStr[24] = { 't', '4', '5', '0', '8', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 0 };
/**
* Parse hex value of given string
*
* @param line Input string
* @param len Count of characters to interpret
* @param value Pointer to variable for the resulting decoded value
* @return 0 on error, 1 on success
*/
unsigned char parseHex(char * line, unsigned char len, unsigned long * value) {
*value = 0;
while (len--) {
if (*line == 0) return 0;
*value <<= 4;
if ((*line >= '0') && (*line <= '9')) {
*value += *line - '0';
} else if ((*line >= 'A') && (*line <= 'F')) {
*value += *line - 'A' + 10;
} else if ((*line >= 'a') && (*line <= 'f')) {
*value += *line - 'a' + 10;
} else return 0;
line++;
}
return 1;
}
ErrorCode usbWrite(const char len, const char read)
{
int i, cmd;
char rspStr[24];
unsigned long tmp;
cmd = usbBuf[0];
if (cmd == PROGRAM_DEVICE)
{
if (currState != PROGRAM_DEVICE)
{
cmdStr[3] = '0';
cmdStr[5] = '0';
cmdStr[6] = cmd + 0x30;
for (i = 1; i < 8; i++) sprintf(&cmdStr[5+2*i], "%02x", ((unsigned char *)usbBuf)[i]);
cmdStr[21] = 13;
#ifdef DEBUG
printf("cmdStr: %s\n", cmdStr);
if (portWrite(cmdStr, 22)) {
if (portRead(rspStr, 2)) {
if (rspStr[0] == 'z' && rspStr[1] == 13) {
if (FALSE == portRead(rspStr, 22)) {
DEBUGMSG("portRead(1) slow error");
return ERR_USB_READ;
}
}
else
{
DEBUGMSG("portRead(1) response error");
return ERR_USB_READ;
}
}
else
{
DEBUGMSG("portRead(1) fast error");
return ERR_USB_READ;
}
}
else
{
DEBUGMSG("portWrite(1) error");
return ERR_USB_WRITE;
}
#else
if (FALSE == portWrite(cmdStr, 22)) return ERR_USB_WRITE;
if (FALSE == portRead(rspStr, 2)) return ERR_USB_READ;
if (rspStr[0] != 'z' || rspStr[1] != 13) return ERR_USB_READ;
if (FALSE == portRead(rspStr, 22)) return ERR_USB_READ;
#endif
}
cmdStr[3] = '1';
for (i = 0; i < 8; i++) sprintf(&cmdStr[5+2*i], "%02x", ((unsigned char *)usbBuf)[i+8]);
}
else
{
cmdStr[3] = '0';
cmdStr[5] = '0';
cmdStr[6] = cmd + 0x30;
for (i = 1; i < 8; i++) sprintf(&cmdStr[5+2*i], "%02x", ((unsigned char *)usbBuf)[i]);
}
currState = cmd;
cmdStr[21] = 13;
#ifdef DEBUG
printf("cmdStr: %s\n", cmdStr);
if (portWrite(cmdStr, 22)) {
if (portRead(rspStr, 2)) {
if (rspStr[0] == 'z' && rspStr[1] == 13) {
if (FALSE == portRead(rspStr, 22)) {
DEBUGMSG("portRead(2) slow error");
return ERR_USB_READ;
}
}
else
{
DEBUGMSG("portRead(2) response error");
return ERR_USB_READ;
}
}
else
{
DEBUGMSG("portRead(2) fast error");
return ERR_USB_READ;
}
}
else
{
DEBUGMSG("portWrite(2) error");
return ERR_USB_WRITE;
}
#else
if (FALSE == portWrite(cmdStr, 22)) return ERR_USB_WRITE;
if (FALSE == portRead(rspStr, 2)) return ERR_USB_READ;
if (rspStr[0] != 'z' || rspStr[1] != 13) return ERR_USB_READ;
if (FALSE == portRead(rspStr, 22)) return ERR_USB_READ;
#endif
if (read)
{
switch (cmd)
{
case QUERY_DEVICE:
if (parseHex(&rspStr[7], 4, &tmp))
{
bufWrite32(usbBuf, 1, tmp);
return (DeviceData(usbBuf));
}
break;
case GET_DATA:
for (i = 0; i < 8; i++)
if (parseHex(&rspStr[5+2*i], 2, &tmp))
bufWrite32(usbBuf, (8+i), tmp);
break;
default:
break;
}
}
return ERR_NONE;
}