100 lines
2.7 KiB
Python
100 lines
2.7 KiB
Python
|
import warnings
|
||
|
|
|
||
|
|
from UniTAP.libs.lib_tsi.tsi_io import PortIO
|
||
|
|
from .types import ClockRate, LinkMode, ScramblerState
|
||
|
|
from UniTAP.libs.lib_tsi.tsi_types import TSI_HDTX_SINK_FEATURE_W, TSI_HDTX_STATUS_R, TSI_HDTX_SINK_STATUS_R, \
|
||
|
|
TSI_HDTX_CONTROL_W
|
||
|
|
from ctypes import c_uint32
|
||
|
|
|
||
|
|
|
||
|
|
class TmdsTx:
|
||
|
|
"""
|
||
|
|
CLass `TmdsRx` allows working with TMDS on Source (TX - transmitter) side.
|
||
|
|
- Get link mode `link_mode`.
|
||
|
|
- Set and get clock rate `clock_rate`.
|
||
|
|
- Set and get scrambler `scrambler`.
|
||
|
|
"""
|
||
|
|
def __init__(self, port_io: PortIO):
|
||
|
|
self.__io = port_io
|
||
|
|
self.__clock_rate = ClockRate.Unknown
|
||
|
|
self.__link_mode = LinkMode.Unknown
|
||
|
|
self.__scrambler = ScramblerState.Unknown
|
||
|
|
|
||
|
|
def __read_sink_status(self) -> int:
|
||
|
|
return self.__io.get(TSI_HDTX_SINK_STATUS_R, c_uint32)[1]
|
||
|
|
|
||
|
|
def __read_hdtx_status(self) -> int:
|
||
|
|
return self.__io.get(TSI_HDTX_STATUS_R, c_uint32)[1]
|
||
|
|
|
||
|
|
def __write_sink_feature(self, value: int):
|
||
|
|
self.__io.set(TSI_HDTX_SINK_FEATURE_W, value, c_uint32)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def clock_rate(self) -> int:
|
||
|
|
"""
|
||
|
|
Returns current clock rate.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
object of int type
|
||
|
|
"""
|
||
|
|
return 6 if self.__read_sink_status() & 0x2 else 3
|
||
|
|
|
||
|
|
@clock_rate.setter
|
||
|
|
def clock_rate(self, clock_rate: int):
|
||
|
|
"""
|
||
|
|
Set new clock rate value. Available variants: 3, 6.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
clock_rate (int)
|
||
|
|
"""
|
||
|
|
if clock_rate not in [3, 6]:
|
||
|
|
warnings.warn("Incorrect value. Must be from available values: 3, 6")
|
||
|
|
return
|
||
|
|
self.__write_sink_feature(3 if clock_rate == 3 else 4)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def link_mode(self) -> LinkMode:
|
||
|
|
"""
|
||
|
|
Returns current link mode.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
object of `LinkMode` type
|
||
|
|
"""
|
||
|
|
self.__link_mode = LinkMode(self.__read_hdtx_status() & 0x1)
|
||
|
|
return self.__link_mode
|
||
|
|
|
||
|
|
@link_mode.setter
|
||
|
|
def link_mode(self, link_mode: LinkMode):
|
||
|
|
"""
|
||
|
|
Set new link mode.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
link_mode (LinkMode)
|
||
|
|
"""
|
||
|
|
self.__io.set(TSI_HDTX_CONTROL_W, link_mode.value, c_uint32)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def scrambler(self) -> bool:
|
||
|
|
"""
|
||
|
|
Returns current scrambler state.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
object of bool type
|
||
|
|
"""
|
||
|
|
return self.__read_sink_status() & 0x1 != 0
|
||
|
|
|
||
|
|
@scrambler.setter
|
||
|
|
def scrambler(self, scrambler: bool):
|
||
|
|
"""
|
||
|
|
Enable/disable scrambler.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
scrambler (bool)
|
||
|
|
"""
|
||
|
|
self.__write_sink_feature(1 if scrambler else 2)
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
return f"Clock rate: {self.clock_rate}G\n" \
|
||
|
|
f"Link mode: {self.link_mode.name}\n" \
|
||
|
|
f"Scrambler: {'Enable' if self.scrambler else 'Disable'}\n"
|