extern int32_t ciaaMulticore_init_Arch(void)
{
int32_t rv = -1;
/* Init IPC queue, only in master core */
rv = ciaaLibs_circBufInit(ipc_queue,
CIAA_MULTICORE_IPC_QUEUE_ADDR + sizeof(ciaaLibs_CircBufType),
CIAA_MULTICORE_IPC_QUEUE_LEN);
if(rv == 1)
{
NVIC_EnableIRQ(M0APP_IRQn);
/* Start slave core */
cr_start_m0(SLAVE_M0APP, CIAA_MULTICORE_CORE_1_IMAGE);
rv = 0;
}
return rv;
}
/*==================[external functions definition]==========================*/
extern ciaaLibs_CircBufType * ciaaLibs_circBufNew(size_t nbytes)
{
ciaaLibs_CircBufType * ret = NULL;
/* check that size is at least 8 and power of 2 */
if ( (nbytes > 7) && (ciaaLibs_isPowerOfTwo(nbytes)) )
{
ret = (ciaaLibs_CircBufType *) ciaaPOSIX_malloc(sizeof(ciaaLibs_CircBufType)+nbytes);
/* if a valid pointer has been returned */
if (NULL != ret)
{
/* init the buffer */
ciaaLibs_circBufInit(ret,
(void*) ( (intptr_t) ret + sizeof(ciaaLibs_CircBufType) ),
nbytes);
}
}
return ret;
} /* end ciaaLibs_circBufNew */
extern void ciaaSerialDevices_addDriver(ciaaDevices_deviceType * driver)
{
ciaaDevices_deviceType * newDevice;
char * newDeviceName;
uint8_t length;
uint8_t position;
/* enter critical section */
/* not needed, only 1 task running */
/* check if more drivers can be added */
if (ciaaSerialDevices_MAXDEVICES > ciaaSerialDevices.position) {
/* get position for next device */
position = ciaaSerialDevices.position;
/* increment position for next device */
ciaaSerialDevices.position++;
/* exit critical section */
/* not needed, only 1 task running */
/* add driver */
ciaaSerialDevices.devstr[position].device = driver;
/* configure rx and tx buffers */
/* TODO buffer size shall be created depending on the device type (eth != uart) */
ciaaLibs_circBufInit(&ciaaSerialDevices.devstr[position].rxBuf, ciaak_malloc(256), 256);
ciaaLibs_circBufInit(&ciaaSerialDevices.devstr[position].txBuf, ciaak_malloc(256), 256);
/* initial flags */
ciaaSerialDevices.devstr[position].flags = 0;
/* allocate memory for new device */
newDevice = (ciaaDevices_deviceType*) ciaak_malloc(sizeof(ciaaDevices_deviceType));
/* set functions for this device */
newDevice->open = ciaaSerialDevices_open;
newDevice->close = ciaaSerialDevices_close;
newDevice->ioctl = ciaaSerialDevices_ioctl;
newDevice->read = ciaaSerialDevices_read;
newDevice->write = ciaaSerialDevices_write;
/* store layers information information */
newDevice->layer = (void *) &ciaaSerialDevices.devstr[position];
newDevice->loLayer = (void *) driver;
/* store newDevice layer information in the lower layer */
driver->upLayer = newDevice;
/* create path string for this device */
length = ciaaPOSIX_strlen(driver->path);
length += ciaaPOSIX_strlen(ciaaSerialDevices_prefix);
length += 2; /* for the / and the termination null */
/* create path for the new device */
newDeviceName = (char *) ciaak_malloc(length);
/* start a new string */
*newDeviceName = 0;
/* add prefix, / and the device name */
ciaaPOSIX_strcat(newDeviceName, ciaaSerialDevices_prefix);
ciaaPOSIX_strcat(newDeviceName, "/");
ciaaPOSIX_strcat(newDeviceName, driver->path);
/* add path to device structure */
newDevice->path = newDeviceName;
/* add device */
ciaaDevices_addDevice(newDevice);
}
else
{
/* exit critical section */
/* not needed, only 1 task running */
}
}
