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michaelDCurranmichaelDCurran
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Merge 6928fef into 8bc6f52 
2 parents 8bc6f52 + 6928fef commit 44ef991

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‎source/brailleDisplayDrivers/dotPad/__init__.py‎

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# A part of NonVisual Desktop Access (NVDA)
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# This file is covered by the GNU General Public License.
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# See the file COPYING for more details.
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# Copyright (C) 2024 NV Access Limited
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"""Braille display driver for the Dot Pad Tactile Graphic braille display from Dot Inc."""
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# Imported here so that braille._getDisplayDriver can import
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from .driver import BrailleDisplayDriver # noqa: F401

‎source/brailleDisplayDrivers/dotPad/defs.py‎

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# A part of NonVisual Desktop Access (NVDA)
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# Copyright (C) 2024 NV Access Limited
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# This file is covered by the GNU General Public License.
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# See the file COPYING for more details.
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import enum
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import ctypes
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class DP_Command(enum.IntEnum):
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REQ_FIRMWARE_VERSION = 0x0000
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RSP_FIRMWARE_VERSION = 0x0001
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REQ_DEVICE_NAME = 0x0100
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RSP_DEVICE_NAME = 0x0101
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REQ_BOARD_INFORMATION = 0x0110
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RSP_BOARD_INFORMATION = 0x0111
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REQ_DISPLAY_LINE = 0x0200
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RSP_DISPLAY_LINE = 0x0201
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NTF_DISPLAY_LINE = 0x0202
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REQ_DISPLAY_CURSOR = 0x0210
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RSP_DISPLAY_CURSOR = 0x0211
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NTF_DISPLAY_CURSOR = 0x0212
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NTF_KEYS_SCROLL = 0x0302
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NTF_KEYS_PERKINS = 0x0312
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NTF_KEYS_ROUTING = 0x0322
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NTF_KEYS_FUNCTION = 0x0332
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NTF_ERROR = 0x9902
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class DP_ErrorCode(enum.IntEnum):
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LENGTH = 1
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COMMAND = 2
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CHECKSUM = 3
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PARAMETER = 4
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TIMEOUT = 5
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class DP_DisplayResponse(enum.IntEnum):
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ACK = 0
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NACK = 1
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WAIT = 2
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CHECKSUM = 3
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class DP_Features(enum.IntFlag):
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HAS_GRAPHIC_DISPLAY = 0x80
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HAS_TEXT_DISPLAY = 0x40
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HAS_PERKINS_KEYS = 0x20
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HAS_ROUTING_KEYS = 0x10
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HAS_NAVIGATION_KEYS = 0x08
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HAS_PANNING_KEYS = 0x04
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HAS_FUNCTION_KEYS = 0x02
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class DP_DisplayDescriptor(ctypes.Structure):
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_fields_ = [
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("rowCount", ctypes.c_ubyte),
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("columnCount", ctypes.c_ubyte),
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("dividedLine", ctypes.c_ubyte),
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("refreshTime", ctypes.c_ubyte),
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]
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class DP_BoardInformation(ctypes.Structure):
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_fields_ = [
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("features", ctypes.c_ubyte),
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("dotsPerCell", ctypes.c_ubyte),
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("distanceBetweenPins", ctypes.c_ubyte),
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("functionKeyCount", ctypes.c_ubyte),
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("text", DP_DisplayDescriptor),
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("graphic", DP_DisplayDescriptor),
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]
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class DP_PacketSeqFlag(enum.IntEnum):
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SEQ_TEXT = 0x80
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class DP_PacketSyncByte(enum.IntEnum):
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SYNC1 = 0xAA
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SYNC2 = 0x55
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class DP_PerkinsKey(enum.IntEnum):
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DOT7 = 0
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DOT3 = 1
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DOT2 = 2
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DOT1 = 3
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DOT4 = 4
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DOT5 = 5
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DOT6 = 6
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DOT8 = 7
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SPACE = 8
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SHIFT_LEFT = 9
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CONTROL_LEFT = 10
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SHIFT_RIGHT = 11
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CONTROL_RIGHT = 12
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PAN_LEFT = 13
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PAN_RIGHT = 14
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NAV_CENTER = 16
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NAV_UP = 17
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NAV_RIGHT = 18
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NAV_DOWN = 19
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NAV_LEFT = 20
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DP_CHECKSUM_BASE = 0xA5

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