Application
Hardware Abstraction Layer (HAL) API Reference > Bootloader Interfaces

Defiunition of the application bootloader interface.

Macros

#define BOOTLOADER_SEGMENT_SIZE_LOG2 6
This is the working unit of data for the app bootloader. We want it as big as possible, but it must be a factor of the NVM page size and fit into a single Zigbee packet. We choose 2^6 = 64 bytes.
#define BOOTLOADER_SEGMENT_SIZE (1 << BOOTLOADER_SEGMENT_SIZE_LOG2 )
This is the working unit of data for the app bootloader. We want it as big as possible, but it must be a factor of the NVM page size and fit into a single Zigbee packet. We choose 2^6 = 64 bytes.
#define BL_IMAGE_IS_VALID_CONTINUE ((uint16_t)0xFFFF)
Define a numerical value for checking image validity when calling the image interface functions.

Functions

uint8_t halAppBootloaderInit (void)
Call this function as part of your application initialization to ensure the storage mechanism is ready to use. Note: some earlier drivers may assert instead of returning an error if initialization fails.
const HalEepromInformationType * halAppBootloaderInfo (void)
Call this function to get information about the attached storage device and its capabilities.
void halAppBootloaderShutdown (void)
Call this function when you are done accessing the storage mechanism to ensure that it is returned to its lowest power state.
void halAppBootloaderImageIsValidReset (void)
Call this function once before checking for a valid image to reset the call flag.
uint16_t halAppBootloaderImageIsValid (void)
Reads the app image out of storage, calculates the total file CRC to verify the image is intact.
EmberStatus halAppBootloaderInstallNewImage (void)
Invokes the bootloader to install the application in storage. This function resets the device to start the bootloader code and does not return!
uint8_t halAppBootloaderWriteRawStorage (uint32_t address, const uint8_t *data, uint16_t len)
Writes data to the specified raw storage address and length without being restricted to any page size Note: Not all storage implementations support accesses that are not page aligned, refer to the HalEepromInformationType structure for more information. Note: Some storage devices require contents to be erased before new data can be written, and will return an EEPROM_ERR_ERASE_REQUIRED error if write is called on a location that is not already erased. Refer to the HalEepromInformationType structure to see if the attached storage device requires erasing.
uint8_t halAppBootloaderReadRawStorage (uint32_t address, uint8_t *data, uint16_t len)
Reads data from the specified raw storage address and length without being restricted to any page size Note: Not all storage implementations support accesses that are not page aligned, refer to the HalEepromInformationType structure for more information.
uint8_t halAppBootloaderEraseRawStorage (uint32_t address, uint32_t len)
Erases the specified region of the storage device. Note: Most devices require the specified region to be page aligned, and will return an error if an unaligned region is specified. Note: Many devices take an extremely long time to perform an erase operation. When erasing a large region, it may be preferable to make multiple calls to this API so that other application functionality can be performed while the erase is in progress. The halAppBootloaderStorageBusy() API may be used to determine when the last erase operation has completed. Erase timing information can be found in the HalEepromInformationType structure.
bool halAppBootloaderStorageBusy (void)
Determine if the attached storage device is still busy performing the last operation, such as a write or an erase.
uint8_t halAppBootloaderReadDownloadSpace (uint16_t pageToBeRead, uint8_t *destRamBuffer)
Converts pageToBeRead to an address and the calls storage read function. Note: This function is deprecated. It has been replaced by halAppBootloaderReadRawStorage()
uint8_t halAppBootloaderWriteDownloadSpace (uint16_t pageToBeWritten, uint8_t *RamPtr)
Converts pageToBeWritten to an address and calls the storage write function. Note: This function is deprecated. It has been replaced by halAppBootloaderWriteRawStorage()
uint8_t halAppBootloaderGetImageData (uint32_t *timestamp, uint8_t *userData)
Read the application image data from storage.
uint16_t halAppBootloaderGetVersion (void)
Returns the application bootloader version.
uint16_t halAppBootloaderGetRecoveryVersion (void)
Returns the recovery image version.
bool halAppBootloaderSupportsIbr (void)
Return a value indicating whether the app bootloader supports IBRs.

Detailed Description

Some functions in this file return an EmberStatus value. See error-def.h for definitions of all EmberStatus return values.

See bootloader-interface-app.h for source code.

Macro Definition Documentation

#define BL_IMAGE_IS_VALID_CONTINUE   ((uint16_t)0xFFFF)
#define BOOTLOADER_SEGMENT_SIZE   (1 << BOOTLOADER_SEGMENT_SIZE_LOG2 )
#define BOOTLOADER_SEGMENT_SIZE_LOG2   6

Function Documentation

uint8_t halAppBootloaderEraseRawStorage ( uint32_t address,
uint32_t len
)
Parameters
address Address to start erasing
len Length of the region to be erased
Returns
EEPROM_SUCCESS or EEPROM_ERR .
uint8_t halAppBootloaderGetImageData ( uint32_t * timestamp,
uint8_t * userData
)
Parameters
timestamp write the image timestamp to this data pointer.
userData write the user data field to this buffer.
Returns
EEPROM_SUCCESS or EEPROM_ERR
uint16_t halAppBootloaderGetRecoveryVersion ( void )
uint16_t halAppBootloaderGetVersion ( void )
uint16_t halAppBootloaderImageIsValid ( void )

Caller should loop calling this function while it returns BL_IMAGE_IS_VALID_CONTINUE to get final result. This allows caller to service system needs during validation.

Call halAppBootloaderImageIsValidReset() before calling halAppBootloaderImageIsValid() to reset the call flag.

Here is an example application call:

1 halAppBootloaderImageIsValidReset();
2 while ( (pages = halAppBootloaderImageIsValid() ) == BL_IMAGE_IS_VALID_CONTINUE) {
3 // make app specific calls here, if any
4 emberTick();
5 }
Returns
One of the following:
void halAppBootloaderImageIsValidReset ( void )
const HalEepromInformationType * halAppBootloaderInfo ( void )
Returns
A pointer to a HalEepromInformationType data structure, or NULL if the driver does not support this API
uint8_t halAppBootloaderInit ( void )
Returns
EEPROM_SUCCESS or EEPROM_ERR_INVALID_CHIP
EmberStatus halAppBootloaderInstallNewImage ( void )
uint8_t halAppBootloaderReadDownloadSpace ( uint16_t pageToBeRead,
uint8_t * destRamBuffer
)
Parameters
pageToBeRead pass in the page to be read. This will be converted to the appropriate address. Pages are EEPROM_PAGE_SIZE long.
destRamBuffer a pointer to the buffer to write to.
Returns
EEPROM_SUCCESS or EEPROM_ERR .
uint8_t halAppBootloaderReadRawStorage ( uint32_t address,
uint8_t * data,
uint16_t len
)
Parameters
address Address from which to start reading data
data A pointer to a buffer where data should be read into
len Length of the data to read
Returns
EEPROM_SUCCESS or EEPROM_ERR .
void halAppBootloaderShutdown ( void )
bool halAppBootloaderStorageBusy ( void )
Returns
true if still busy or false if not.
bool halAppBootloaderSupportsIbr ( void )
Returns
true if the app bootloader supports IBRs, false otherwise
uint8_t halAppBootloaderWriteDownloadSpace ( uint16_t pageToBeWritten,
uint8_t * RamPtr
)
Parameters
pageToBeWritten pass in the page to be written. This will be converted to the appropriate address. Pages are EEPROM_PAGE_SIZE long.
RamPtr a pointer to the data to be written.
Returns
EEPROM_SUCCESS or EEPROM_ERR
uint8_t halAppBootloaderWriteRawStorage ( uint32_t address,
const uint8_t * data,
uint16_t len
)
Parameters
address Address to start writing data
data A pointer to the buffer of data to write.
len Length of the data to write
Returns
EEPROM_SUCCESS or EEPROM_ERR .