VCOS_STATUS_T vcos_thread_create_classic(VCOS_THREAD_T *thread,
const char *name,
void *(*entry)(void* arg),
void *arg,
void *stack,
VCOS_UNSIGNED stacksz,
VCOS_UNSIGNED priaff,
VCOS_UNSIGNED timeslice,
VCOS_UNSIGNED autostart)
{
VCOS_STATUS_T status;
VCOS_THREAD_ATTR_T attrs;
VCOS_UNSIGNED priority = priaff & ~VCOS_AFFINITY_MASK;
VCOS_UNSIGNED affinity = priaff & VCOS_AFFINITY_MASK;
vcos_thread_attr_init(&attrs);
#if VCOS_CAN_SET_STACK_ADDR
vcos_thread_attr_setstack(&attrs, stack, stacksz);
#else
vcos_assert(stack == 0);
#endif
vcos_assert((autostart == VCOS_START) || (autostart == VCOS_NO_START));
vcos_thread_attr_setpriority(&attrs, priority);
vcos_thread_attr_setaffinity(&attrs, affinity);
vcos_thread_attr_settimeslice(&attrs, timeslice);
vcos_thread_attr_setautostart(&attrs, autostart);
status = vcos_thread_create(thread, name, &attrs, entry, arg);
return status;
}
/***********************************************************
* Name: os_thread_begin
*
* Arguments: VCOS_THREAD_T *thread
* OS_THREAD_FUNC_T func
* int stack
* void *data
* const char *name
*
* Description: Routine to create and start a thread or task for VCHIQ
* Thread function has different arguments (void*) to os_thread_start (int,void*).
*
*
* Returns: int32_t - success == 0
*
***********************************************************/
void os_thread_begin(VCOS_THREAD_T *thread, void (*func)(void*), int stack, void *data, const char *name)
{
VCOS_THREAD_ATTR_T attrs;
VCOS_STATUS_T status;
vcos_thread_attr_init(&attrs);
vcos_thread_attr_setstacksize(&attrs, stack);
vcos_thread_attr_setpriority(&attrs, 5); /* FIXME: should not be hardcoded */
vcos_thread_attr_settimeslice(&attrs, 20); /* FIXME: should not be hardcoded */
status = vcos_thread_create(thread, name, &attrs, (VCOS_THREAD_ENTRY_FN_T)func, data);
vcos_assert(status == VCOS_SUCCESS);
}
int32_t os_thread_start( VCOS_THREAD_T *thread, OS_THREAD_FUNC_T func, void *arg, uint32_t stack_size, const char *name )
{
VCOS_STATUS_T st;
VCOS_THREAD_ATTR_T attrs;
vcos_thread_attr_init(&attrs);
vcos_thread_attr_setstacksize(&attrs, stack_size);
vcos_thread_attr_settimeslice(&attrs, 1);
/* Os_threads assume (argc, argv) as arguments, with argc=0. The default vcos thread
* just passes in argv as the first argument. Use this to change it. This kludge
* needs to be removed once os_thread_start() is completely withdrawn.
*/
_vcos_thread_attr_setlegacyapi(&attrs,1);
st = vcos_thread_create(thread, name, &attrs, (VCOS_THREAD_ENTRY_FN_T)func, arg);
return (st==VCOS_SUCCESS?0:-1);
}
void vchiq_init_state(VCHIQ_STATE_T *state, VCHIQ_CHANNEL_T *local, VCHIQ_CHANNEL_T *remote)
{
VCOS_THREAD_ATTR_T attrs;
char threadname[8];
static int id = 0;
vcos_assert(is_pow2(VCHIQ_CHANNEL_SIZE));
vcos_assert(is_pow2(VCHIQ_NUM_CURRENT_BULKS));
vcos_assert(is_pow2(VCHIQ_NUM_SERVICE_BULKS));
vcos_assert(sizeof(VCHIQ_HEADER_T) == 8); /* we require this for consistency between endpoints */
memset(state, 0, sizeof(VCHIQ_STATE_T));
state->id = id++;
/*
initialize events and mutex
*/
vcos_event_create(&state->connect, "vchiq");
vcos_mutex_create(&state->mutex, "vchiq");
/*
initialize channel pointers
*/
state->local = local;
state->remote = remote;
vchiq_init_channel(local);
/*
bring up slot handler thread
*/
vcos_thread_attr_init(&attrs);
vcos_thread_attr_setstacksize(&attrs, VCHIQ_SLOT_HANDLER_STACK);
vcos_thread_attr_setpriority(&attrs, 5); /* FIXME: should not be hardcoded */
vcos_thread_attr_settimeslice(&attrs, 20); /* FIXME: should not be hardcoded */
strcpy(threadname, "VCHIQ-0");
threadname[6] += state->id % 10;
vcos_thread_create(&state->slot_handler_thread, threadname,
&attrs, slot_handler_func, state);
/* Indicate readiness to the other side */
local->initialised = 1;
}
void vc_vchi_dispmanx_init (VCHI_INSTANCE_T initialise_instance, VCHI_CONNECTION_T **connections, uint32_t num_connections ) {
VCOS_STATUS_T status;
int32_t success;
uint32_t i;
// record the number of connections
memset( &dispmanx_client, 0, sizeof(DISPMANX_SERVICE_T) );
dispmanx_client.num_connections = num_connections;
status = vcos_mutex_create(&dispmanx_client.lock, "HDispmanx");
vcos_assert(status == VCOS_SUCCESS);
status = vcos_event_create(&dispmanx_message_available_event, "HDispmanx");
vcos_assert(status == VCOS_SUCCESS);
status = vcos_event_create(&dispmanx_notify_available_event, "HDispmanx");
vcos_assert(status == VCOS_SUCCESS);
dispmanx_client.initialised = 1;
for (i=0; i<dispmanx_client.num_connections; i++) {
VCOS_THREAD_ATTR_T attrs;
// Create a 'Client' service on the each of the connections
SERVICE_CREATION_T dispmanx_parameters = { DISPMANX_CLIENT_NAME, // 4cc service code
connections[i], // passed in fn ptrs
0, // tx fifo size (unused)
0, // tx fifo size (unused)
&dispmanx_client_callback, // service callback
&dispmanx_message_available_event, // callback parameter
VC_FALSE, // want_unaligned_bulk_rx
VC_FALSE, // want_unaligned_bulk_tx
VC_FALSE, // want_crc
};
SERVICE_CREATION_T dispmanx_parameters2 = { DISPMANX_NOTIFY_NAME, // 4cc service code
connections[i], // passed in fn ptrs
0, // tx fifo size (unused)
0, // tx fifo size (unused)
&dispmanx_notify_callback, // service callback
&dispmanx_notify_available_event, // callback parameter
VC_FALSE, // want_unaligned_bulk_rx
VC_FALSE, // want_unaligned_bulk_tx
VC_FALSE, // want_crc
};
success = vchi_service_open( initialise_instance, &dispmanx_parameters, &dispmanx_client.client_handle[i] );
vcos_assert( success == 0 );
// Create the async service of dispman to handle update callback
success = vchi_service_open( initialise_instance, &dispmanx_parameters2, &dispmanx_client.notify_handle[i] );
vcos_assert( success == 0 );
//Create the notifier task
vcos_thread_attr_init(&attrs);
vcos_thread_attr_setstacksize(&attrs, 2048);
vcos_thread_attr_settimeslice(&attrs, 1);
status = vcos_thread_create(&dispmanx_notify_task, "HDispmanx Notify", &attrs, dispmanx_notify_func, NULL);
vcos_assert(status == VCOS_SUCCESS);
// release services until they're actually used
vchi_service_release(dispmanx_client.client_handle[i]);
vchi_service_release(dispmanx_client.notify_handle[i]);
}
}