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fix USB enabling 

Change-Id: I22cdd77648ac21490909423bf529fb31f30d6af0
This commit is contained in:
Kevin Redon 2018-12-18 13:26:34 +01:00
parent 56739ea049
commit 74a8e3b615
1 changed files with 22 additions and 24 deletions
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46
usb/class/dfu/device/dfudf.c
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@ -46,33 +46,31 @@ static int32_t dfudf_enable(struct usbdf_driver *drv, struct usbd_descriptors *d
usb_iface_desc_t ifc_desc;
uint8_t * ifc;
uint8_t i;
ifc = desc->sod;
for (i = 0; i < 2; i++) {
if (NULL == ifc) {
return ERR_NOT_FOUND;
}
ifc_desc.bInterfaceNumber = ifc[2];
ifc_desc.bInterfaceClass = ifc[5];
if (USB_DFU_CLASS == ifc_desc.bInterfaceClass) {
if (func_data->func_iface == ifc_desc.bInterfaceNumber) { // Initialized
return ERR_ALREADY_INITIALIZED;
} else if (func_data->func_iface != 0xFF) { // Occupied
return ERR_NO_RESOURCE;
} else {
func_data->func_iface = ifc_desc.bInterfaceNumber;
}
} else { // Not supported by this function driver
return ERR_NOT_FOUND;
}
// there are no endpoint to install since DFU uses only the control endpoint
ifc = usb_find_desc(usb_desc_next(desc->sod), desc->eod, USB_DT_INTERFACE);
if (NULL == ifc) {
return ERR_NOT_FOUND;
}
ifc_desc.bInterfaceNumber = ifc[2];
ifc_desc.bInterfaceClass = ifc[5];
if (USB_DFU_CLASS == ifc_desc.bInterfaceClass) {
if (func_data->func_iface == ifc_desc.bInterfaceNumber) { // Initialized
return ERR_ALREADY_INITIALIZED;
} else if (func_data->func_iface != 0xFF) { // Occupied
return ERR_NO_RESOURCE;
} else {
func_data->func_iface = ifc_desc.bInterfaceNumber;
}
} else { // Not supported by this function driver
return ERR_NOT_FOUND;
}
// there are no endpoint to install since DFU uses only the control endpoint
ifc = usb_find_desc(usb_desc_next(desc->sod), desc->eod, USB_DT_INTERFACE);
// Installed
_dfudf_funcd.enabled = true;
return ERR_NONE;