Initial commit
diff --git a/rmi4update/updateutil.cpp b/rmi4update/updateutil.cpp
new file mode 100644
index 0000000..33330f2
--- /dev/null
+++ b/rmi4update/updateutil.cpp
@@ -0,0 +1,54 @@
+#include "updateutil.h"
+
+const char *update_error_str[] = {
+ "success", // UPDATE_SUCCESS
+ "failed", // UPDATE_FAIL
+ "timeout", // UPDATE_FAIL_TIMEOUT
+ "invalid firmware image", // UPDATE_FAIL_VERIFY_IMAGE
+ "checksum does not match image", // UPDATE_FAIL_VERIFY_CHECKSUM
+ "image firmware size does not match device", // UPDATE_FAIL_VERIFY_FIRMWARE_SIZE
+ "image config size does not match device", // UPDATE_FAIL_VERIFY_CONFIG_SIZE
+ "image version is unsupported", // UPDATE_FAIL_UNSUPPORTED_IMAGE_VERSION
+ "failed to find F01 on device", // UPDATE_FAIL_NO_FUNCTION_01
+ "failed to find F34 on device", // UPDATE_FAIL_NO_FUNCTION_34
+ "failed to query the basic properties in F01", // UPDATE_FAIL_QUERY_BASIC_PROPERTIES
+ "failed to read F34 query registers", // UPDATE_FAIL_READ_F34_QUERIES
+ "failed to read the bootloader id", // UPDATE_FAIL_READ_BOOTLOADER_ID
+ "failed to read F34 control registers", // UPDATE_FAIL_READ_F34_CONTROLS
+ "failed to write the bootloader id", // UPDATE_FAIL_WRITE_BOOTLOADER_ID
+ "failed to enable flash programming", // UPDATE_FAIL_ENABLE_FLASH_PROGRAMMING
+ "failed to reach idle state", // UPDATE_FAIL_NOT_IN_IDLE_STATE
+ "programming is not enabled", // UPDATE_FAIL_PROGRAMMING_NOT_ENABLED
+ "failed to scan the PDT", // UPDATE_FAIL_SCAN_PDT
+ "failed to read the device status", // UPDATE_FAIL_READ_DEVICE_STATUS
+ "device not in the bootloader after enabling programming", // UPDATE_FAIL_DEVICE_NOT_IN_BOOTLOADER
+ "failed to read F01 control 0 register", // UPDATE_FAIL_READ_F01_CONTROL_0
+ "failed to write F01 control 0 register", // UPDATE_FAIL_WRITE_F01_CONTROL_0
+ "failed to write initial zeros", // UPDATE_FAIL_WRITE_INITIAL_ZEROS
+ "failed to write block", // UPDATE_FAIL_WRITE_BLOCK
+ "failed to write the flash command", // UPDATE_FAIL_WRITE_FLASH_COMMAND
+ "timeout waiting for idle", // UPDATE_FAIL_TIMEOUT_WAITING_FOR_IDLE
+ "failed to write erase all command", // UPDATE_FAIL_ERASE_ALL
+ "the firmware image is older then the firmware on the device", // UPDATE_FAIL_FIRMWARE_IMAGE_IS_OLDER
+ "invalid parameter", // UPDATE_FAIL_INVALID_PARAMETER
+ "failed to open firmware image file", // UPDATE_FAIL_OPEN_FIRMWARE_IMAGE
+};
+
+const char * update_err_to_string(int err)
+{
+ return update_error_str[err];
+}
+
+unsigned long extract_long(const unsigned char *data)
+{
+ return (unsigned long)data [0]
+ + (unsigned long)data [1] * 0x100
+ + (unsigned long)data [2] * 0x10000
+ + (unsigned long)data [3] * 0x1000000;
+}
+
+unsigned short extract_short(const unsigned char *data)
+{
+ return (unsigned long)data [0]
+ + (unsigned long)data [1] * 0x100;
+}
\ No newline at end of file