/**
* @brief USBD_Init
* Initializes the device stack and load the class driver
* @param pdev: device instance
* @param pdesc: Descriptor structure address
* @param id: Low level core index
* @retval None
*/
USBD_StatusTypeDef USBD_Init(USBD_HandleTypeDef *pdev, USBD_DescriptorsTypeDef *pdesc, uint8_t id)
{
/* Check whether the USB Host handle is valid */
if(pdev == NULL)
{
USBD_ErrLog("Invalid Device handle");
return USBD_FAIL;
}
/* Unlink previous class*/
if(pdev->pClass != NULL)
{
pdev->pClass = NULL;
}
/* Assign USBD Descriptors */
if(pdesc != NULL)
{
pdev->pDesc = pdesc;
}
/* Set Device initial State */
pdev->dev_state = USBD_STATE_DEFAULT;
pdev->id = id;
/* Initialize low level driver */
USBD_LL_Init(pdev);
return USBD_OK;
}
bool pyb_usb_dev_init(uint16_t vid, uint16_t pid, usb_device_mode_t mode, USBD_HID_ModeInfoTypeDef *hid_info) {
bool high_speed = (mode & USBD_MODE_HIGH_SPEED) != 0;
mode &= 0x7f;
usb_device_t *usb_dev = &usb_device;
if (!usb_dev->enabled) {
// only init USB once in the device's power-lifetime
// set up the USBD state
USBD_HandleTypeDef *usbd = &usb_dev->hUSBDDevice;
usbd->id = MICROPY_HW_USB_MAIN_DEV;
usbd->dev_state = USBD_STATE_DEFAULT;
usbd->pDesc = (USBD_DescriptorsTypeDef*)&USBD_Descriptors;
usbd->pClass = &USBD_CDC_MSC_HID;
usb_dev->usbd_cdc_msc_hid_state.pdev = usbd;
usb_dev->usbd_cdc_msc_hid_state.cdc = &usb_dev->usbd_cdc_itf.base;
#if MICROPY_HW_USB_ENABLE_CDC2
usb_dev->usbd_cdc_msc_hid_state.cdc2 = &usb_dev->usbd_cdc2_itf.base;
#endif
usb_dev->usbd_cdc_msc_hid_state.hid = &usb_dev->usbd_hid_itf.base;
usbd->pClassData = &usb_dev->usbd_cdc_msc_hid_state;
// configure the VID, PID and the USBD mode (interfaces it will expose)
USBD_SetVIDPIDRelease(&usb_dev->usbd_cdc_msc_hid_state, vid, pid, 0x0200, mode == USBD_MODE_CDC);
if (USBD_SelectMode(&usb_dev->usbd_cdc_msc_hid_state, mode, hid_info) != 0) {
return false;
}
switch (pyb_usb_storage_medium) {
#if MICROPY_HW_ENABLE_SDCARD
case PYB_USB_STORAGE_MEDIUM_SDCARD:
USBD_MSC_RegisterStorage(&usb_dev->usbd_cdc_msc_hid_state, (USBD_StorageTypeDef*)&USBD_SDCARD_STORAGE_fops);
break;
#endif
default:
USBD_MSC_RegisterStorage(&usb_dev->usbd_cdc_msc_hid_state, (USBD_StorageTypeDef*)&USBD_FLASH_STORAGE_fops);
break;
}
// start the USB device
USBD_LL_Init(usbd, high_speed);
USBD_LL_Start(usbd);
usb_dev->enabled = true;
}
return true;
}