int dfu_makeidle(usb_dev_handle *dev, uint16_t iface)
{
int i;
dfu_status status;
for(i = 0; i < 3; i++) {
if(dfu_getstatus(dev, iface, &status) < 0) {
dfu_clrstatus(dev, iface);
continue;
}
i--;
switch(status.bState) {
case STATE_DFU_IDLE:
return 0;
case STATE_DFU_DOWNLOAD_SYNC:
case STATE_DFU_DOWNLOAD_IDLE:
case STATE_DFU_MANIFEST_SYNC:
case STATE_DFU_UPLOAD_IDLE:
case STATE_DFU_DOWNLOAD_BUSY:
case STATE_DFU_MANIFEST:
dfu_abort(dev, iface);
continue;
case STATE_DFU_ERROR:
dfu_clrstatus(dev, iface);
continue;
case STATE_APP_IDLE:
dfu_detach(dev, iface, DFU_DETACH_TIMEOUT);
continue;
case STATE_APP_DETACH:
case STATE_DFU_MANIFEST_WAIT_RESET:
usb_reset(dev);
return -1;
default:
return -1;
}
}
return -1;
}
int stm32_mem_manifest(usb_dev_handle *dev, uint16_t iface)
{
dfu_status status;
int i;
if((i = dfu_dnload(dev, iface, 0, NULL, 0)) < 0) return i;
while(1) {
if((i = dfu_getstatus(dev, iface, &status)) < 0) return 0;
#ifdef WIN32
Sleep(status.bwPollTimeout);
#else
usleep(status.bwPollTimeout * 1000);
#endif
switch(status.bState) {
case STATE_DFU_MANIFEST:
return 0;
default:
return -1;
}
}
}
static int stm32_download(usb_dev_handle *dev, uint16_t iface,
uint16_t wBlockNum, void *data, int size)
{
dfu_status status;
int i;
if((i = dfu_dnload(dev, iface, wBlockNum, data, size)) < 0) return i;
while(1) {
if((i = dfu_getstatus(dev, iface, &status)) < 0) return i;
switch(status.bState) {
case STATE_DFU_DOWNLOAD_BUSY:
#ifdef WIN32
Sleep(status.bwPollTimeout);
#else
usleep(status.bwPollTimeout * 1000);
#endif
break;
case STATE_DFU_DOWNLOAD_IDLE:
return 0;
default:
return -1;
}
}
}