emmc pd implementation

note that I put this together before seeing
sigrokproject#24 and
sigrokproject#93; I'm not sure
how this compares to either of them.

Author: antonok-edm

decoders/emmc/__init__.py

@@ -0,0 +1,24 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2015 Uwe Hermann <[email protected]>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, see <http://www.gnu.org/licenses/>.
+##
+
+'''
+eMMC low-level protocol decoder.
+'''
+
+from .pd import Decoder

decoders/emmc/emmc_common.py

@@ -0,0 +1,124 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2012-2014 Uwe Hermann <[email protected]>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, see <http://www.gnu.org/licenses/>.
+##
+
+# Normal commands (CMD)
+# Unlisted items are 'Reserved' as per eMMC spec.
+cmd_names = {
+    0:  'GO_IDLE_STATE',
+    1:  'SEND_OP_COND',
+    2:  'ALL_SEND_CID',
+    3:  'SEND_RELATIVE_ADDR',
+    4:  'SET_DSR',
+    5:  'SLEEP_AWAKE',
+    6:  'SWITCH',
+    7:  'SELECT/DESELECT_CARD',
+    8:  'SEND_EXT_CSD',
+    9:  'SEND_CSD',
+    10: 'SEND_CID',
+    # 11: Obsolete
+    12: 'STOP_TRANSMISSION',
+    13: 'SEND_STATUS',
+    14: 'BUSTEST_R',
+    15: 'GO_INACTIVE_STATE',
+    16: 'SET_BLOCKLEN',
+    17: 'READ_SINGLE_BLOCK',
+    18: 'READ_MULTIPLE_BLOCK',
+    19: 'BUSTEST_W',
+    # 20: Obsolete
+    21: 'SEND_TUNING_BLOCK',
+    # 22: Reserved
+    23: 'SET_BLOCK_COUNT',
+    24: 'WRITE_BLOCK',
+    25: 'WRITE_MULTIPLE_BLOCK',
+    26: 'PROGRAM_CID',
+    27: 'PROGRAM_CSD',
+    28: 'SET_WRITE_PROT',
+    29: 'CLR_WRITE_PROT',
+    30: 'SEND_WRITE_PROT',
+    31: 'SEND_WRITE_PROT_TYPE',
+    # 32-34: Reserved
+    35: 'ERASE_GROUP_START',
+    36: 'ERASE_GROUP_END',
+    # 37: Reserved
+    38: 'ERASE',
+    39: 'FAST_IO',
+    40: 'GO_IRQ_STATE',
+    # 41: Reserved
+    42: 'LOCK_UNLOCK',
+    # 43: Reserved
+    44: 'QUEUED_TASK_PARAMS',
+    45: 'QUEUED_TASK_ADDRESS',
+    46: 'EXECUTE_READ_TASK',
+    47: 'EXECUTE_WRITE_TASK',
+    48: 'CMDQ_TASK_MGMT',
+    49: 'SET_TIME',
+    # 50-52: Reserved
+    53: 'PROTOCOL_RD',
+    54: 'PROTOCOL_WR',
+    55: 'APP_CMD',
+    56: 'GEN_CMD',
+    # 57-59: Reserved
+    60: 'Reserved for manufacturer',
+    61: 'Reserved for manufacturer',
+    62: 'Reserved for manufacturer',
+    63: 'Reserved for manufacturer',
+}
+
+accepted_voltages = {
+    0b0001: '2.7-3.6V',
+    0b0010: 'reserved for low voltage range',
+    0b0100: 'reserved',
+    0b1000: 'reserved',
+    # All other values: "not defined".
+}
+
+card_status = {
+    0:  'Reserved for manufacturer test mode',
+    1:  'Reserved for manufacturer test mode',
+    2:  'Reserved for application specific commands',
+    3:  'Reserved for application specific commands',
+    4:  'Reserved',
+    5:  'APP_CMD',
+    6:  'EXCEPTION_EVENT',
+    7:  'SWITCH_ERROR',
+    8:  'READY_FOR_DATA',
+    9:  'CURRENT_STATE', # CURRENT_STATE is a 4-bit value (decimal: 0..15).
+    10: 'CURRENT_STATE',
+    11: 'CURRENT_STATE',
+    12: 'CURRENT_STATE',
+    13: 'ERASE_RESET',
+    14: 'Reserved',
+    15: 'WP_ERASE_SKIP',
+    16: 'CID/CSD_OVERWRITE',
+    17: 'Obsolete',
+    18: 'Obsolete',
+    19: 'ERROR',
+    20: 'CC_ERROR',
+    21: 'DEVICE_ECC_FAILED',
+    22: 'ILLEGAL_COMMAND',
+    23: 'COM_CRC_ERROR',
+    24: 'LOCK_UNLOCK_FAILED',
+    25: 'DEVICE_IS_LOCKED',
+    26: 'WP_VIOLATION',
+    27: 'ERASE_PARAM',
+    28: 'ERASE_SEQ_ERROR',
+    29: 'BLOCK_LEN_ERROR',
+    30: 'ADDRESS_MISALIGN',
+    31: 'ADDRESS_OUT_OF_RANGE',
+}