diff options
Diffstat (limited to 'meta-zephyr-core/classes/zephyr-flash-dfu.bbclass')
-rw-r--r-- | meta-zephyr-core/classes/zephyr-flash-dfu.bbclass | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/meta-zephyr-core/classes/zephyr-flash-dfu.bbclass b/meta-zephyr-core/classes/zephyr-flash-dfu.bbclass new file mode 100644 index 0000000..b4f3d49 --- /dev/null +++ b/meta-zephyr-core/classes/zephyr-flash-dfu.bbclass @@ -0,0 +1,65 @@ + +python do_flash_usb() { + import subprocess + + # Append the original PATH so we can find dfu-util... + origbbenv = d.getVar("BB_ORIGENV", False) + path = d.getVar('PATH') + ":" + origbbenv.getVar('PATH') + os.environ['PATH'] = path + + return_code = subprocess.call("which dfu-util", shell=True) + if return_code != 0: + bb.error("ERROR: dfu-util binary not in PATH") + sys.exit(1) + + board = d.getVar('BOARD') + + if board == 'arduino_101_sss': + iface = 'sensor_core' + elif board == 'arduino_101': + iface = 'x86_app' + elif board == 'arduino_101_ble': + iface = 'ble_core' + else: + bb.error(" Unsupported board %s" % board) + sys.exit(2) + + # We need to serialize flashing of separate images (when using multiconfig) + lock = bb.utils.lockfile(os.path.join(d.getVar('TOPDIR'),"flash-dfu.lock"), False, True) + image = "%s/%s.elf" % (d.getVar('DEPLOY_DIR_IMAGE'), d.getVar('PN')) + statement = 'dfu-util -v -a ' + iface + ' -d 8087:0aba -D ' + image.replace('elf','bin') + + bb.note("command: %s" % statement) + bb.plain("Attempting to flash board: %s" % board) + + # Arduino-101 needs to be reset in order to enter "flash mode". + # The flash window is about 5 seconds. + # However, if the device is flashed, it remains in the "flash mode" + # until it is reset again, so it needs to enter the flash mode via reset + # only once even if we flash images for multiple cores. So we only prompt + # for reset once. + + timeout = 5 + promptneeded = True + while (timeout > 0): + time.sleep(0.5) + timeout = timeout - 0.5 + return_code = subprocess.call(statement, shell=True) + if return_code == 0: + break + if promptneeded: + bb.warn("\n\n *** Failed to flash %s. *** \n Press reset, will retry for five seconds...\n" % board) + promptneeded = False + + if return_code != 0: + bb.error("Error flashing %s [%d]" % (board,return_code)) + else: + bb.plain("Success (return code %d)" % return_code) + + bb.utils.unlockfile(lock) +} + +addtask do_flash_usb after do_deploy + +do_flash_usb[nostamp] = "1" +do_flash_usb[vardepsexclude] = "BB_ORIGENV" |