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avrdude/ser_avrdoper.c

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/*
* avrdude - A Downloader/Uploader for AVR device programmers
* Copyright (C) 2003-2004 Theodore A. Roth <troth@openavr.org>
* Copyright (C) 2006 Joerg Wunsch <j@uriah.heep.sax.de>
* Copyright (C) 2006 Christian Starkjohann
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* $Id$ */
/*
* Serial Interface emulation for USB programmer "AVR-Doper" in HID mode.
*/
#include "ac_cfg.h"
#if defined(HAVE_LIBUSB) || (defined(WIN32NATIVE) && defined(HAVE_LIBHID))
#include <stdio.h>
#include <string.h>
#include "serial.h"
/* ------------------------------------------------------------------------ */
/* Numeric constants for 'reportType' parameters */
#define USB_HID_REPORT_TYPE_INPUT 1
#define USB_HID_REPORT_TYPE_OUTPUT 2
#define USB_HID_REPORT_TYPE_FEATURE 3
/* These are the error codes which can be returned by functions of this
* module.
*/
#define USB_ERROR_NONE 0
#define USB_ERROR_ACCESS 1
#define USB_ERROR_NOTFOUND 2
#define USB_ERROR_BUSY 16
#define USB_ERROR_IO 5
#define USB_VENDOR_ID 0x16c0
#define USB_PRODUCT_ID 0x05df
extern char *progname;
extern int verbose;
static int reportDataSizes[4] = {13, 29, 61, 125};
static unsigned char avrdoperRxBuffer[280]; /* buffer for receive data */
static int avrdoperRxLength = 0; /* amount of valid bytes in rx buffer */
static int avrdoperRxPosition = 0; /* amount of bytes already consumed in rx buffer */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
#if defined(WIN32NATIVE) && defined(HAVE_LIBHID)
#include <windows.h>
#include <setupapi.h>
#if defined(HAVE_DDK_HIDSDI_H)
# include <ddk/hidsdi.h>
#else
# include "my_ddk_hidsdi.h"
#endif
#include <ddk/hidpi.h>
#ifdef USB_DEBUG
#define DEBUG_PRINT(arg) printf arg
#else
#define DEBUG_PRINT(arg)
#endif
/* ------------------------------------------------------------------------ */
static void convertUniToAscii(char *buffer)
{
unsigned short *uni = (void *)buffer;
char *ascii = buffer;
while(*uni != 0){
if(*uni >= 256){
*ascii++ = '?';
}else{
*ascii++ = *uni++;
}
}
*ascii++ = 0;
}
static int usbOpenDevice(union filedescriptor *fdp, int vendor, char *vendorName,
int product, char *productName, int usesReportIDs)
{
GUID hidGuid; /* GUID for HID driver */
HDEVINFO deviceInfoList;
SP_DEVICE_INTERFACE_DATA deviceInfo;
SP_DEVICE_INTERFACE_DETAIL_DATA *deviceDetails = NULL;
DWORD size;
int i, openFlag = 0; /* may be FILE_FLAG_OVERLAPPED */
int errorCode = USB_ERROR_NOTFOUND;
HANDLE handle = INVALID_HANDLE_VALUE;
HIDD_ATTRIBUTES deviceAttributes;
HidD_GetHidGuid(&hidGuid);
deviceInfoList = SetupDiGetClassDevs(&hidGuid, NULL, NULL,
DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);
deviceInfo.cbSize = sizeof(deviceInfo);
for(i=0;;i++){
if(handle != INVALID_HANDLE_VALUE){
CloseHandle(handle);
handle = INVALID_HANDLE_VALUE;
}
if(!SetupDiEnumDeviceInterfaces(deviceInfoList, 0, &hidGuid, i, &deviceInfo))
break; /* no more entries */
/* first do a dummy call just to determine the actual size required */
SetupDiGetDeviceInterfaceDetail(deviceInfoList, &deviceInfo, NULL, 0, &size, NULL);
if(deviceDetails != NULL)
free(deviceDetails);
deviceDetails = malloc(size);
deviceDetails->cbSize = sizeof(*deviceDetails);
/* this call is for real: */
SetupDiGetDeviceInterfaceDetail(deviceInfoList, &deviceInfo, deviceDetails,
size, &size, NULL);
DEBUG_PRINT(("checking HID path \"%s\"\n", deviceDetails->DevicePath));
/* attempt opening for R/W -- we don't care about devices which can't be accessed */
handle = CreateFile(deviceDetails->DevicePath, GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
openFlag, NULL);
if(handle == INVALID_HANDLE_VALUE){
DEBUG_PRINT(("opening failed: %d\n", (int)GetLastError()));
/* errorCode = USB_ERROR_ACCESS; opening will always fail for mouse -- ignore */
continue;
}
deviceAttributes.Size = sizeof(deviceAttributes);
HidD_GetAttributes(handle, &deviceAttributes);
DEBUG_PRINT(("device attributes: vid=%d pid=%d\n",
deviceAttributes.VendorID, deviceAttributes.ProductID));
if(deviceAttributes.VendorID != vendor || deviceAttributes.ProductID != product)
continue; /* ignore this device */
errorCode = USB_ERROR_NOTFOUND;
if(vendorName != NULL && productName != NULL){
char buffer[512];
if(!HidD_GetManufacturerString(handle, buffer, sizeof(buffer))){
DEBUG_PRINT(("error obtaining vendor name\n"));
errorCode = USB_ERROR_IO;
continue;
}
convertUniToAscii(buffer);
DEBUG_PRINT(("vendorName = \"%s\"\n", buffer));
if(strcmp(vendorName, buffer) != 0)
continue;
if(!HidD_GetProductString(handle, buffer, sizeof(buffer))){
DEBUG_PRINT(("error obtaining product name\n"));
errorCode = USB_ERROR_IO;
continue;
}
convertUniToAscii(buffer);
DEBUG_PRINT(("productName = \"%s\"\n", buffer));
if(strcmp(productName, buffer) != 0)
continue;
}
break; /* we have found the device we are looking for! */
}
SetupDiDestroyDeviceInfoList(deviceInfoList);
if(deviceDetails != NULL)
free(deviceDetails);
if(handle != INVALID_HANDLE_VALUE){
fdp->pfd = (void *)handle;
errorCode = 0;
}
return errorCode;
}
/* ------------------------------------------------------------------------ */
static void usbCloseDevice(union filedescriptor *fdp)
{
CloseHandle((HANDLE)fdp->pfd);
}
/* ------------------------------------------------------------------------ */
static int usbSetReport(union filedescriptor *fdp, int reportType, char *buffer, int len)
{
HANDLE handle = (HANDLE)fdp->pfd;
BOOLEAN rval = 0;
DWORD bytesWritten;
switch(reportType){
case USB_HID_REPORT_TYPE_INPUT:
break;
case USB_HID_REPORT_TYPE_OUTPUT:
rval = WriteFile(handle, buffer, len, &bytesWritten, NULL);
break;
case USB_HID_REPORT_TYPE_FEATURE:
rval = HidD_SetFeature(handle, buffer, len);
break;
}
return rval == 0 ? USB_ERROR_IO : 0;
}
/* ------------------------------------------------------------------------ */
static int usbGetReport(union filedescriptor *fdp, int reportType, int reportNumber,
char *buffer, int *len)
{
HANDLE handle = (HANDLE)fdp->pfd;
BOOLEAN rval = 0;
DWORD bytesRead;
switch(reportType){
case USB_HID_REPORT_TYPE_INPUT:
buffer[0] = reportNumber;
rval = ReadFile(handle, buffer, *len, &bytesRead, NULL);
if(rval)
*len = bytesRead;
break;
case USB_HID_REPORT_TYPE_OUTPUT:
break;
case USB_HID_REPORT_TYPE_FEATURE:
buffer[0] = reportNumber;
rval = HidD_GetFeature(handle, buffer, *len);
break;
}
return rval == 0 ? USB_ERROR_IO : 0;
}
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
#else /* !(WIN32NATIVE && HAVE_LIBHID) */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
#include <usb.h>
/* ------------------------------------------------------------------------- */
#define USBRQ_HID_GET_REPORT 0x01
#define USBRQ_HID_SET_REPORT 0x09
static int usesReportIDs;
/* ------------------------------------------------------------------------- */
static int usbGetStringAscii(usb_dev_handle *dev, int index, int langid, char *buf, int buflen)
{
char buffer[256];
int rval, i;
if((rval = usb_control_msg(dev, USB_ENDPOINT_IN, USB_REQ_GET_DESCRIPTOR,
(USB_DT_STRING << 8) + index, langid, buffer,
sizeof(buffer), 1000)) < 0)
return rval;
if(buffer[1] != USB_DT_STRING)
return 0;
if((unsigned char)buffer[0] < rval)
rval = (unsigned char)buffer[0];
rval /= 2;
/* lossy conversion to ISO Latin1 */
for(i=1;i<rval;i++){
if(i > buflen) /* destination buffer overflow */
break;
buf[i-1] = buffer[2 * i];
if(buffer[2 * i + 1] != 0) /* outside of ISO Latin1 range */
buf[i-1] = '?';
}
buf[i-1] = 0;
return i-1;
}
static int usbOpenDevice(union filedescriptor *fdp, int vendor, char *vendorName,
int product, char *productName, int doReportIDs)
{
struct usb_bus *bus;
struct usb_device *dev;
usb_dev_handle *handle = NULL;
int errorCode = USB_ERROR_NOTFOUND;
static int didUsbInit = 0;
if(!didUsbInit){
usb_init();
didUsbInit = 1;
}
usb_find_busses();
usb_find_devices();
for(bus=usb_get_busses(); bus; bus=bus->next){
for(dev=bus->devices; dev; dev=dev->next){
if(dev->descriptor.idVendor == vendor && dev->descriptor.idProduct == product){
char string[256];
int len;
handle = usb_open(dev); /* we need to open the device in order to query strings */
if(!handle){
errorCode = USB_ERROR_ACCESS;
fprintf(stderr, "Warning: cannot open USB device: %s\n",
usb_strerror());
continue;
}
if(vendorName == NULL && productName == NULL){ /* name does not matter */
break;
}
/* now check whether the names match: */
len = usbGetStringAscii(handle, dev->descriptor.iManufacturer,
0x0409, string, sizeof(string));
if(len < 0){
errorCode = USB_ERROR_IO;
fprintf(stderr,
"Warning: cannot query manufacturer for device: %s\n",
usb_strerror());
}else{
errorCode = USB_ERROR_NOTFOUND;
/* fprintf(stderr, "seen device from vendor ->%s<-\n", string); */
if(strcmp(string, vendorName) == 0){
len = usbGetStringAscii(handle, dev->descriptor.iProduct,
0x0409, string, sizeof(string));
if(len < 0){
errorCode = USB_ERROR_IO;
fprintf(stderr,
"Warning: cannot query product for device: %s\n",
usb_strerror());
}else{
errorCode = USB_ERROR_NOTFOUND;
/* fprintf(stderr, "seen product ->%s<-\n", string); */
if(strcmp(string, productName) == 0)
break;
}
}
}
usb_close(handle);
handle = NULL;
}
}
if(handle)
break;
}
if(handle != NULL){
int rval, retries = 3;
if(usb_set_configuration(handle, 1)){
fprintf(stderr, "Warning: could not set configuration: %s\n",
usb_strerror());
}
/* now try to claim the interface and detach the kernel HID driver on
* linux and other operating systems which support the call.
*/
while((rval = usb_claim_interface(handle, 0)) != 0 && retries-- > 0){
#ifdef LIBUSB_HAS_DETACH_KERNEL_DRIVER_NP
if(usb_detach_kernel_driver_np(handle, 0) < 0){
fprintf(stderr, "Warning: could not detach kernel HID driver: %s\n",
usb_strerror());
}
#endif
}
if(rval != 0)
fprintf(stderr, "Warning: could not claim interface\n");
/* Continue anyway, even if we could not claim the interface. Control transfers
* should still work.
*/
errorCode = 0;
fdp->pfd = (void *)handle;
usesReportIDs = doReportIDs;
}
return errorCode;
}
/* ------------------------------------------------------------------------- */
static void usbCloseDevice(union filedescriptor *fdp)
{
usb_close((usb_dev_handle *)fdp->pfd);
}
/* ------------------------------------------------------------------------- */
static int usbSetReport(union filedescriptor *fdp, int reportType, char *buffer, int len)
{
int bytesSent;
if(!usesReportIDs){
buffer++; /* skip dummy report ID */
len--;
}
bytesSent = usb_control_msg((usb_dev_handle *)fdp->pfd, USB_TYPE_CLASS |
USB_RECIP_INTERFACE | USB_ENDPOINT_OUT, USBRQ_HID_SET_REPORT,
reportType << 8 | buffer[0], 0, buffer, len, 5000);
if(bytesSent != len){
if(bytesSent < 0)
fprintf(stderr, "Error sending message: %s\n", usb_strerror());
return USB_ERROR_IO;
}
return 0;
}
/* ------------------------------------------------------------------------- */
static int usbGetReport(union filedescriptor *fdp, int reportType, int reportNumber,
char *buffer, int *len)
{
int bytesReceived, maxLen = *len;
if(!usesReportIDs){
buffer++; /* make room for dummy report ID */
maxLen--;
}
bytesReceived = usb_control_msg((usb_dev_handle *)fdp->pfd, USB_TYPE_CLASS |
USB_RECIP_INTERFACE | USB_ENDPOINT_IN, USBRQ_HID_GET_REPORT,
reportType << 8 | reportNumber, 0, buffer, maxLen, 5000);
if(bytesReceived < 0){
fprintf(stderr, "Error sending message: %s\n", usb_strerror());
return USB_ERROR_IO;
}
*len = bytesReceived;
if(!usesReportIDs){
buffer[-1] = reportNumber; /* add dummy report ID */
*len++;
}
return 0;
}
#endif /* WIN32NATIVE */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------ */
/* ------------------------------------------------------------------------- */
static void dumpBlock(char *prefix, unsigned char *buf, int len)
{
int i;
if(len <= 8){ /* more compact format for short blocks */
fprintf(stderr, "%s: %d bytes: ", prefix, len);
for(i = 0; i < len; i++){
fprintf(stderr, "%02x ", buf[i]);
}
fprintf(stderr, " \"");
for(i = 0; i < len; i++){
if(buf[i] >= 0x20 && buf[i] < 0x7f){
fputc(buf[i], stderr);
}else{
fputc('.', stderr);
}
}
fprintf(stderr, "\"\n");
}else{
fprintf(stderr, "%s: %d bytes:\n", prefix, len);
while(len > 0){
for(i = 0; i < 16; i++){
if(i < len){
fprintf(stderr, "%02x ", buf[i]);
}else{
fprintf(stderr, " ");
}
if(i == 7)
fputc(' ', stderr);
}
fprintf(stderr, " \"");
for(i = 0; i < 16; i++){
if(i < len){
if(buf[i] >= 0x20 && buf[i] < 0x7f){
fputc(buf[i], stderr);
}else{
fputc('.', stderr);
}
}
}
fprintf(stderr, "\"\n");
buf += 16;
len -= 16;
}
}
}
static char *usbErrorText(int usbErrno)
{
static char buffer[32];
switch(usbErrno){
case USB_ERROR_NONE: return "Success.";
case USB_ERROR_ACCESS: return "Access denied.";
case USB_ERROR_NOTFOUND:return "Device not found.";
case USB_ERROR_BUSY: return "Device is busy.";
case USB_ERROR_IO: return "I/O Error.";
default:
sprintf(buffer, "Unknown error %d.", usbErrno);
return buffer;
}
}
/* ------------------------------------------------------------------------- */
static void avrdoper_open(char *port, long baud, union filedescriptor *fdp)
{
int rval;
char *vname = "obdev.at";
char *devname = "AVR-Doper";
rval = usbOpenDevice(fdp, USB_VENDOR_ID, vname, USB_PRODUCT_ID, devname, 1);
if(rval != 0){
fprintf(stderr, "%s: avrdoper_open(): %s\n", progname, usbErrorText(rval));
exit(1);
}
}
/* ------------------------------------------------------------------------- */
static void avrdoper_close(union filedescriptor *fdp)
{
usbCloseDevice(fdp);
}
/* ------------------------------------------------------------------------- */
static int chooseDataSize(int len)
{
int i;
for(i = 0; i < sizeof(reportDataSizes)/sizeof(reportDataSizes[0]); i++){
if(reportDataSizes[i] >= len)
return i;
}
return i - 1;
}
static int avrdoper_send(union filedescriptor *fdp, unsigned char *buf, size_t buflen)
{
if(verbose > 3)
dumpBlock("Send", buf, buflen);
while(buflen > 0){
unsigned char buffer[256];
int rval, lenIndex = chooseDataSize(buflen);
int thisLen = buflen > reportDataSizes[lenIndex] ?
reportDataSizes[lenIndex] : buflen;
buffer[0] = lenIndex + 1; /* report ID */
buffer[1] = thisLen;
memcpy(buffer + 2, buf, thisLen);
if(verbose > 3)
fprintf(stderr, "Sending %d bytes data chunk\n", thisLen);
rval = usbSetReport(fdp, USB_HID_REPORT_TYPE_FEATURE, (char *)buffer,
reportDataSizes[lenIndex] + 2);
if(rval != 0){
fprintf(stderr, "%s: avrdoper_send(): %s\n", progname, usbErrorText(rval));
exit(1);
}
buflen -= thisLen;
buf += thisLen;
}
return 0;
}
/* ------------------------------------------------------------------------- */
static void avrdoperFillBuffer(union filedescriptor *fdp)
{
int bytesPending = reportDataSizes[1]; /* guess how much data is buffered in device */
avrdoperRxPosition = avrdoperRxLength = 0;
while(bytesPending > 0){
int len, usbErr, lenIndex = chooseDataSize(bytesPending);
unsigned char buffer[128];
len = sizeof(avrdoperRxBuffer) - avrdoperRxLength; /* bytes remaining */
if(reportDataSizes[lenIndex] + 2 > len) /* requested data would not fit into buffer */
break;
len = reportDataSizes[lenIndex] + 2;
usbErr = usbGetReport(fdp, USB_HID_REPORT_TYPE_FEATURE, lenIndex + 1,
(char *)buffer, &len);
if(usbErr != 0){
fprintf(stderr, "%s: avrdoperFillBuffer(): %s\n", progname, usbErrorText(usbErr));
exit(1);
}
if(verbose > 3)
fprintf(stderr, "Received %d bytes data chunk of total %d\n", len - 2, buffer[1]);
len -= 2; /* compensate for report ID and length byte */
bytesPending = buffer[1] - len; /* amount still buffered */
if(len > buffer[1]) /* cut away padding */
len = buffer[1];
if(avrdoperRxLength + len > sizeof(avrdoperRxBuffer)){
fprintf(stderr,
"%s: avrdoperFillBuffer(): internal error: buffer overflow\n",
progname);
exit(1);
}
memcpy(avrdoperRxBuffer + avrdoperRxLength, buffer + 2, len);
avrdoperRxLength += len;
}
}
static int avrdoper_recv(union filedescriptor *fdp, unsigned char *buf, size_t buflen)
{
unsigned char *p = buf;
int remaining = buflen;
while(remaining > 0){
int len, available = avrdoperRxLength - avrdoperRxPosition;
if(available <= 0){ /* buffer is empty */
avrdoperFillBuffer(fdp);
continue;
}
len = remaining < available ? remaining : available;
memcpy(p, avrdoperRxBuffer + avrdoperRxPosition, len);
p += len;
remaining -= len;
avrdoperRxPosition += len;
}
if(verbose > 3)
dumpBlock("Receive", buf, buflen);
return 0;
}
/* ------------------------------------------------------------------------- */
static int avrdoper_drain(union filedescriptor *fdp, int display)
{
do{
avrdoperFillBuffer(fdp);
}while(avrdoperRxLength > 0);
return 0;
}
/* ------------------------------------------------------------------------- */
struct serial_device avrdoper_serdev =
{
.open = avrdoper_open,
.close = avrdoper_close,
.send = avrdoper_send,
.recv = avrdoper_recv,
.drain = avrdoper_drain,
.flags = SERDEV_FL_NONE,
};
#endif /* defined(HAVE_LIBUSB) || (defined(WIN32NATIVE) && defined(HAVE_LIBHID)) */
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