Initial commit

cocotbext/eth/constants.py

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+"""
+
+Copyright (c) 2020 Alex Forencich
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+"""
+
+import enum
+
+class EthPre(enum.IntEnum):
+    PRE = 0x55
+    SFD = 0xD5
+
+ETH_PREAMBLE = b'\x55\x55\x55\x55\x55\x55\x55\xd5'
+
+class XgmiiCtrl(enum.IntEnum):
+    IDLE   = 0x07
+    LPI    = 0x06
+    START  = 0xfb
+    TERM   = 0xfd
+    ERROR  = 0xfe
+    SEQ_OS = 0x9c
+    RES0   = 0x1c
+    RES1   = 0x3c
+    RES2   = 0x7c
+    RES3   = 0xbc
+    RES4   = 0xdc
+    RES5   = 0xf7
+    SIG_OS = 0x5c
+
+class BaseRCtrl(enum.IntEnum):
+    IDLE  = 0x00
+    LPI   = 0x06
+    ERROR = 0x1e
+    RES_0 = 0x2d
+    RES_1 = 0x33
+    RES_2 = 0x4b
+    RES_3 = 0x55
+    RES_4 = 0x66
+    RES_5 = 0x78
+
+class BaseRO(enum.IntEnum):
+    SEQ_OS = 0x0
+    SIG_OS = 0xf
+
+class BaseRSync(enum.IntEnum):
+    DATA = 0b10
+    CTRL = 0b01
+
+class BaseRBlockType(enum.IntEnum):
+    CTRL     = 0x1e  # C7 C6 C5 C4 C3 C2 C1 C0 BT
+    OS_4     = 0x2d  # D7 D6 D5 O4 C3 C2 C1 C0 BT
+    START_4  = 0x33  # D7 D6 D5    C3 C2 C1 C0 BT
+    OS_START = 0x66  # D7 D6 D5    O0 D3 D2 D1 BT
+    OS_04    = 0x55  # D7 D6 D5 O4 O0 D3 D2 D1 BT
+    START_0  = 0x78  # D7 D6 D5 D4 D3 D2 D1    BT
+    OS_0     = 0x4b  # C7 C6 C5 C4 O0 D3 D2 D1 BT
+    TERM_0   = 0x87  # C7 C6 C5 C4 C3 C2 C1    BT
+    TERM_1   = 0x99  # C7 C6 C5 C4 C3 C2    D0 BT
+    TERM_2   = 0xaa  # C7 C6 C5 C4 C3    D1 D0 BT
+    TERM_3   = 0xb4  # C7 C6 C5 C4    D2 D1 D0 BT
+    TERM_4   = 0xcc  # C7 C6 C5    D3 D2 D1 D0 BT
+    TERM_5   = 0xd2  # C7 C6    D4 D3 D2 D1 D0 BT
+    TERM_6   = 0xe1  # C7    D5 D4 D3 D2 D1 D0 BT
+    TERM_7   = 0xff  #    D6 D5 D4 D3 D2 D1 D0 BT
+