/*----------------------------------------------------------------------------*
* NAME
* Nvm_Read
*
* DESCRIPTION
* Read words from the NVM Store after preparing the NVM to be readable.
* After the read operation, perform the actions necessary to save power
* on NVM.
*
* Read words starting at the word offset, and store them in the supplied
* buffer.
*
* PARAMETERS
* buffer [out] Data read from NVM
* length [in] Number of words of data to read
* offset [in] Offset from which to start reading, in words
*
* RETURNS
* Nothing
*----------------------------------------------------------------------------*/
void Nvm_Read(uint16 *buffer, uint16 length, uint16 offset)
{
sys_status result;
/* Read from NVM. Firmware re-enables the NVM if it is disabled */
result = NvmRead(buffer, length, offset);
/* Disable NVM to save power after read operation */
Nvm_Disable();
/* Report panic if NVM read is not successful */
if(sys_status_success != result)
{
ReportPanic(app_panic_nvm_read);
}
}
void Nvm_Read(uint16* buffer, uint16 length, uint16 offset)
{
sys_status result;
/* If the NVM has been earlier disabled, firmware automatically enables
* NVM before reading from it.
*/
result = NvmRead(buffer, length, offset);
/* Disable NVM to save power after read operation */
Nvm_Disable();
/* PIO2 usage has to be toggled between LED operation and driving the NVM.
* So, after the power to EEPROM is disabled, configure PIO2 to Pair LED
* back again.
*/
SetUpPairLED();
if(sys_status_success != result)
{
ReportPanic(app_panic_nvm_read);
}
}
/*----------------------------------------------------------------------------*
* NAME
* readPersistentStore
*
* DESCRIPTION
* This function is used to initialise and read NVM data.
*
* PARAMETERS
* None
*
* RETURNS
* Nothing
*----------------------------------------------------------------------------*/
static void readPersistentStore(void)
{
/* NVM offset for supported services */
uint16 nvm_offset = NVM_MAX_APP_MEMORY_WORDS;
uint16 nvm_sanity = 0xffff;
/* Read persistent storage to find if the device was last bonded to another
* device. If the device was bonded, trigger fast undirected advertisements
* by setting the white list for bonded host. If the device was not bonded,
* trigger undirected advertisements for any host to connect.
*/
NvmRead(&nvm_sanity, sizeof(nvm_sanity), NVM_OFFSET_SANITY_WORD);
if (nvm_sanity == NVM_SANITY_MAGIC)
{
/* Read bonded flag from NVM */
NvmRead((uint16 *)&(IS_BONDED),
sizeof(IS_BONDED),
NVM_OFFSET_BONDED_FLAG);
if (IS_BONDED)
{
/* Bonded host typed BD address will only be stored if bonded flag
* is set to TRUE. Read last bonded device address.
*/
NvmRead((uint16 *)&(CONN_HOST_ADDR),
sizeof(TYPED_BD_ADDR_T),
NVM_OFFSET_BONDED_ADDR);
/* If device is bonded and bonded address is resolvable then read
* the bonded device's IRK
*/
if (GattIsAddressResolvableRandom(&(CONN_HOST_ADDR)))
{
NvmRead(CONNECTION_IRK,
MAX_WORDS_IRK,
NVM_OFFSET_SM_IRK);
}
}
else /* Case when we have only written NVM_SANITY_MAGIC to NVM but
* didn't get bonded to any host in the last powered session
*/
{
/* Any initialisation can be done here for non-bonded devices */
}
/* Read the diversifier associated with the presently bonded/last
* bonded device.
*/
NvmRead(&(LINK_DIVERSIFIER),
sizeof(LINK_DIVERSIFIER),
NVM_OFFSET_SM_DIV);
/* Read GATT data from NVM */
GattReadDataFromNVM(&nvm_offset);
}
else /* NVM sanity check failed means either the device is being brought up
* for the first time or memory has been corrupted in which case
* discard the data and start fresh.
*/
{
nvm_sanity = NVM_SANITY_MAGIC;
/* Write NVM Sanity word to the NVM */
NvmWrite(&nvm_sanity,
sizeof(nvm_sanity),
NVM_OFFSET_SANITY_WORD);
/* The device will not be bonded as it is coming up for the first time
*/
IS_BONDED = FALSE;
/* Write bonded status to NVM */
NvmWrite((uint16 *)&(IS_BONDED),
sizeof(IS_BONDED),
NVM_OFFSET_BONDED_FLAG);
/* When the application is coming up for the first time after flashing
* the image to it, it will not have bonded to any device. So, no LTK
* will be associated with it. Hence, set the diversifier to 0.
*/
LINK_DIVERSIFIER = 0;
/* Write the same to NVM. */
NvmWrite(&(LINK_DIVERSIFIER),
sizeof(LINK_DIVERSIFIER),
NVM_OFFSET_SM_DIV);
/* Since device is being brought up first time, it won't be in
* bonded state. Following function call will only initialise the NVM
* offset of GATT service.
*/
GattReadDataFromNVM(&nvm_offset);
}
}
void init_platform_bootloader( void )
{
uint32_t BootNvmInfo;
OSStatus err;
MicoGpioInitialize( BOOT_SEL, INPUT_PULL_UP );
MicoGpioInitialize( MFG_SEL, INPUT_PULL_UP );
#ifdef MICO_ATE_START_ADDRESS
MicoGpioInitialize( EasyLink_BUTTON, INPUT_PULL_UP );
#endif
/* Check USB-HOST is inserted */
err = MicoGpioInitialize( (mico_gpio_t)USB_DETECT, INPUT_PULL_DOWN );
require_noerr(err, exit);
mico_thread_msleep_no_os(2);
require_string( MicoGpioInputGet( (mico_gpio_t)USB_DETECT ) == true, exit, "USB device is not inserted" );
//platform_log("USB device inserted");
if( HardwareInit(DEV_ID_USB) ){
FolderOpenByNum(&RootFolder, NULL, 1);
FileBrowse(RootFolder.FsContext);
}
/* Check last firmware update is success or not. */
NvmRead(UPGRADE_NVM_ADDR, (uint8_t*)&BootNvmInfo, 4);
if(false == UpgradeFileFound)
{
if(BootNvmInfo == UPGRADE_SUCC_MAGIC)
{
/*
* boot up check for the last time
*/
platform_log("[UPGRADE]:upgrade successful completely");
}
else if(BootNvmInfo == (uint32_t)UPGRADE_ERRNO_NOERR)
{
platform_log("[UPGRADE]:no upgrade, boot normallly");
}
else if(BootNvmInfo == (uint32_t)UPGRADE_ERRNO_CODBUFDAT)
{
platform_log("[UPGRADE]:upgrade successful partly, data fail");
}
else
{
platform_log("[UPGRADE]:upgrade error, errno = %d", (int32_t)BootNvmInfo);
}
}
else
{
if(BootNvmInfo == (uint32_t)UPGRADE_ERRNO_NOERR)
{
platform_log("[UPGRADE]:found upgrade ball, prepare to boot upgrade");
BootNvmInfo = UPGRADE_REQT_MAGIC;
NvmWrite(UPGRADE_NVM_ADDR, (uint8_t*)&BootNvmInfo, 4);
//if you want PORRESET to reset GPIO only,uncomment it
//GpioPorSysReset(GPIO_RSTSRC_PORREST);
NVIC_SystemReset();
while(1);;;
}
else if(BootNvmInfo == UPGRADE_SUCC_MAGIC)
{
BootNvmInfo = (uint32_t)UPGRADE_ERRNO_NOERR;
NvmWrite(UPGRADE_NVM_ADDR, (uint8_t*)&BootNvmInfo, 4);
platform_log("[UPGRADE]:found upgrade ball file for the last time, re-plugin/out, if you want to upgrade again");
}
else
{
platform_log("[UPGRADE]:upgrade error, errno = %d", (int32_t)BootNvmInfo);
if( BootNvmInfo == -9 ) {
platform_log("[UPGRADE]:Same file, no need to update");
goto exit;
}
BootNvmInfo = (uint32_t)UPGRADE_ERRNO_NOERR;
NvmWrite(UPGRADE_NVM_ADDR, (uint8_t*)&BootNvmInfo, 4);
BootNvmInfo = UPGRADE_REQT_MAGIC;
NvmWrite(UPGRADE_NVM_ADDR, (uint8_t*)&BootNvmInfo, 4);
//if you want PORRESET to reset GPIO only,uncomment it
//GpioPorSysReset(GPIO_RSTSRC_PORREST);
NVIC_SystemReset();
}
}
exit:
return;
}