def __init__(self,
data_area_size = DEFAULT_DATA_AREA_SIZE,
code_area_size = DEFAULT_CODE_AREA_SIZE,
max_threads = DEFAULT_MAX_THREADS
):
self.mailbox = MailBox()
self.mailbox.enable_qpu(1)
self.memory = None
try:
self.data_area_size = data_area_size
self.code_area_size = code_area_size
self.max_threads = max_threads
self.code_area_base = 0
self.data_area_base = self.code_area_base + self.code_area_size
self.msg_area_base = self.data_area_base + self.data_area_size
self.code_pos = self.code_area_base
self.data_pos = self.data_area_base
total = data_area_size + code_area_size + max_threads * 64
self.memory = Memory(self.mailbox, total)
self.message = Array(
address = self.memory.baseaddr + self.msg_area_base,
buffer = self.memory.base,
offset = self.msg_area_base,
shape = (self.max_threads, 2),
dtype = np.uint32)
except:
if self.memory:
self.memory.close()
self.mailbox.enable_qpu(0)
self.mailbox.close()
raise
def __init__(self,
data_area_size = DEFAULT_DATA_AREA_SIZE,
code_area_size = DEFAULT_CODE_AREA_SIZE,
max_threads = DEFAULT_MAX_THREADS,
cache_mode = rpi_vcsm.CACHE_NONE
):
self.mailbox = MailBox()
self.mailbox.enable_qpu(1)
self.vcsm = rpi_vcsm.VCSM.VCSM()
if cache_mode in [rpi_vcsm.CACHE_HOST, rpi_vcsm.CACHE_BOTH]:
self.is_cacheop_needed = True
else:
self.is_cacheop_needed = False
self.max_threads = max_threads
message_area_size = max_threads * 2 * 4
try:
# Non-cached memory area for code and message.
self.ctlmem = Mempool({'message': message_area_size,
'code': code_area_size},
vcsm = self.vcsm,
cache_mode = rpi_vcsm.CACHE_NONE)
# Memory area for uniforms and data with cache mode cache_mode.
self.datmem = Mempool({'data': data_area_size},
vcsm = self.vcsm, cache_mode = cache_mode)
self.message = self.ctlmem.alloc('message',
shape = (self.max_threads, 2),
dtype = np.uint32)
except:
self.close()
raise
from videocore.mailbox import MailBox
with MailBox() as mb:
print('firmware revision: %x' % mb.get_firmware_revision())
print('board model: %x' % mb.get_board_model())
print('board revision: %x' % mb.get_board_revision())
print('board serial: %016x' % mb.get_board_serial())