diff options
| -rw-r--r-- | usb/device/dfu/dfu.h | 6 | ||||
| -rw-r--r-- | usb/device/dfu/dfu_runtime.c | 20 |
2 files changed, 26 insertions, 0 deletions
diff --git a/usb/device/dfu/dfu.h b/usb/device/dfu/dfu.h index ad64c99..eec956b 100644 --- a/usb/device/dfu/dfu.h +++ b/usb/device/dfu/dfu.h @@ -110,6 +110,9 @@ const USBDDriverDescriptors dfu_descriptors; #endif /* BOARD_USB_DFU */ +#define USB_DFU_MAGIC 0xDFDFDFDF +#define USB_DFU_MAGIC_ADDR AT91C_IRAM + /* The API between the core DFU handler and the board/soc specific code */ struct dfudata { @@ -120,8 +123,11 @@ struct dfudata { }; extern struct dfudata g_dfu; + void set_usb_serial_str(const uint8_t *serial_usbstr); +void DFURT_SwitchToDFU(void); + /* call-backs by the board/SOC */ extern int USBDFU_handle_dnload(uint8_t altif, unsigned int offset, uint8_t *data, unsigned int len); diff --git a/usb/device/dfu/dfu_runtime.c b/usb/device/dfu/dfu_runtime.c new file mode 100644 index 0000000..5ad1038 --- /dev/null +++ b/usb/device/dfu/dfu_runtime.c @@ -0,0 +1,20 @@ + +#include <board.h> +#include <core_cm3.h> + +#include <usb/device/core/USBD.h> +#include <usb/device/dfu/dfu.h> + + +void DFURT_SwitchToDFU(void) +{ + unsigned int *dfu_except_tbl = (unsigned int *)AT91C_IFLASH0; + void (*toDFU)(void) = (void *)dfu_except_tbl[1]; + + *(unsigned int *)USB_DFU_MAGIC_ADDR = USB_DFU_MAGIC; + + USBD_Disconnect(); + __disable_irq(); + + toDFU(); +} |