diff options
author | Romain Forlot <romain.forlot@iot.bzh> | 2020-01-07 19:33:11 +0100 |
---|---|---|
committer | Romain Forlot <romain.forlot@iot.bzh> | 2020-01-09 16:26:18 +0100 |
commit | 252d47fb4c0d3a69d3fffdf08213e771d61fcad1 (patch) | |
tree | d7597f2d255e16837e3cd84c7bdd3c87e2e8d0ad | |
parent | 8c27aef5cb195d0f62ea715fc9b1be1c5868d496 (diff) |
message: move bit position flag and action
Separate some define to be in a dedicated header file that will
be installed on the system. Then the low-can-generator could use it
instead of having to copy those defines in the generator code.
Change-Id: I1716c8b20f0811ca4ac1e8f13609f05ad7d24d1f
Signed-off-by: Arthur Guyader <arthur.guyader@iot.bzh>
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
-rw-r--r-- | conf.d/cmake/config.cmake | 2 | ||||
-rw-r--r-- | include/CMakeLists.txt | 19 | ||||
-rw-r--r-- | include/low-can/can-message.hpp | 45 | ||||
-rw-r--r-- | low-can-binding/can/can-decoder.cpp | 11 | ||||
-rw-r--r-- | low-can-binding/can/message/message.hpp | 23 | ||||
-rw-r--r-- | low-can-binding/utils/converter.cpp | 32 | ||||
-rw-r--r-- | low-can-binding/utils/converter.hpp | 6 |
7 files changed, 68 insertions, 70 deletions
diff --git a/conf.d/cmake/config.cmake b/conf.d/cmake/config.cmake index 7031c7ef..cedb5e3f 100644 --- a/conf.d/cmake/config.cmake +++ b/conf.d/cmake/config.cmake @@ -112,6 +112,8 @@ set(INSTALL_PREFIX $ENV{HOME}/opt) # ----------------------------- list (APPEND link_libraries -pthread) +INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include) + # Compilation options definition # Use CMake generator expressions to specify only for a specific language # Values are prefilled with default options that is currently used. diff --git a/include/CMakeLists.txt b/include/CMakeLists.txt new file mode 100644 index 00000000..ebf7c8db --- /dev/null +++ b/include/CMakeLists.txt @@ -0,0 +1,19 @@ +########################################################################### +# Copyright (C) 2015-2019 "IoT.bzh" +# +# author: José Bollo <jose.bollo@iot.bzh> +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +########################################################################### + +INSTALL(DIRECTORY low-can DESTINATION ${CMAKE_INSTALL_FULL_INCLUDEDIR}) diff --git a/include/low-can/can-message.hpp b/include/low-can/can-message.hpp new file mode 100644 index 00000000..5179594b --- /dev/null +++ b/include/low-can/can-message.hpp @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2015, 2019 "IoT.bzh" + * Author "Romain Forlot" <romain.forlot@iot.bzh> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma once + +#define CAN_MESSAGE_SIZE 8 + +#define MAX_BCM_CAN_FRAMES 257 +#define MAX_ISOTP_FRAMES 4096 + +#define J1939_CAN_ID CAN_EFF_FLAG +#define J1939_CAN_MASK (CAN_EFF_FLAG | CAN_RTR_FLAG) + +#define CAN_ISOTP_MAX_DLEN 4096 + +#define NO_CAN_ID 0xFFFFFFFFU + +/** + * FLAGS defining how to open socket and how you could decode the frame + */ +#define CAN_PROTOCOL 0x0001 +#define CAN_PROTOCOL_WITH_FD_FRAME 0x0002 +#define J1939_ADDR_CLAIM_PROTOCOL 0x0004 +#define J1939_PROTOCOL 0x0008 +#define ISOTP_PROTOCOL 0x0010 +#define ISOTP_SEND 0x0020 +#define ISOTP_RECEIVE 0x0040 +#define BYTE_FRAME_IS_BIG_ENDIAN 0x0080 +#define BIT_POSITION_REVERSED 0x0100 +#define CONTINENTAL_BIT_POSITION 0x0200 +#define INVALID_FLAG 0x8000 diff --git a/low-can-binding/can/can-decoder.cpp b/low-can-binding/can/can-decoder.cpp index 7221d716..5fe22541 100644 --- a/low-can-binding/can/can-decoder.cpp +++ b/low-can-binding/can/can-decoder.cpp @@ -398,17 +398,6 @@ openxc_DynamicField decoder_t::translate_signal(signal_t& signal, std::shared_pt /// openxc_DynamicField decoder_t::decode_signal( signal_t& signal, std::shared_ptr<message_t> message, bool* send) { - - - if(signal.get_message()->get_flags() & CONTINENTAL_BIT_POSITION) - signal.set_bit_position(converter_t::continental_bit_position_mess(message->get_length(), - signal.get_bit_position(), - signal.get_bit_size())); - if(signal.get_message()->get_flags() & BIT_POSITION_REVERSED) - signal.set_bit_position(converter_t::bit_position_swap(message->get_length(), - signal.get_bit_position(), - signal.get_bit_size())); - signal_decoder decoder = signal.get_decoder() == nullptr ? decode_noop : signal.get_decoder(); diff --git a/low-can-binding/can/message/message.hpp b/low-can-binding/can/message/message.hpp index b77ce8bd..6416bcfb 100644 --- a/low-can-binding/can/message/message.hpp +++ b/low-can-binding/can/message/message.hpp @@ -24,28 +24,7 @@ #include <memory> #include <linux/can.h> #include <linux/can/bcm.h> -#include "../../utils/timer.hpp" - -#define CAN_MESSAGE_SIZE 8 - -#define MAX_BCM_CAN_FRAMES 257 -#define MAX_ISOTP_FRAMES 4096 - - -/** - * FLAGS - */ -#define CAN_PROTOCOL 0x0001 -#define CAN_PROTOCOL_WITH_FD_FRAME 0x0002 -#define J1939_ADDR_CLAIM_PROTOCOL 0x0004 -#define J1939_PROTOCOL 0x0008 -#define ISOTP_PROTOCOL 0x0010 -#define ISOTP_SEND 0x0020 -#define ISOTP_RECEIVE 0x0040 -#define BYTE_FRAME_IS_BIG_ENDIAN 0x0080 -#define BIT_POSITION_REVERSED 0x0100 -#define CONTINENTAL_BIT_POSITION 0x0200 -#define INVALID_FLAG 0x8000 +#include <low-can/can-message.hpp> /// @class message_t /// diff --git a/low-can-binding/utils/converter.cpp b/low-can-binding/utils/converter.cpp index 56f3a449..4c0a3a89 100644 --- a/low-can-binding/utils/converter.cpp +++ b/low-can-binding/utils/converter.cpp @@ -71,34 +71,4 @@ void converter_t::signal_to_bits_bytes(unsigned int bit_position, unsigned int b new_start_bit = bit_position % CHAR_BIT; new_end_byte = (bit_position + bit_size - 1) >> 3; new_end_bit = (bit_position + bit_size - 1) % CHAR_BIT; -} - - -/** - * @brief This is to use when you have a big endian CAN frame layout. - * It converts the bit position so it matches with little endiant CAN frame layout. - * - * @param msg_length Message length in bytes. - * @param bit_position Original bit position. - * @param bit_size Size of the data. - * @return uint32_t New bit position. - */ -uint32_t converter_t::bit_position_swap(unsigned int msg_length, unsigned int bit_position, unsigned int bit_size) -{ - return (msg_length * CHAR_BIT) - bit_position - bit_size; -} - -/** - * @brief This allow to get the correct bit_position using the weird Continental. - * bit numbering method where the Frame is read using little endianness - * and bit count using a big endianness - * - * @param msg_length Message length in bytes. - * @param bit_position Original bit position. - * @param bit_size Size of the data. - * @return uint32_t New bit position. - */ -uint32_t converter_t::continental_bit_position_mess(unsigned int msg_length, unsigned int bit_position, unsigned int bit_size) -{ - return bit_position + CHAR_BIT - 2 * (bit_position % CHAR_BIT) - bit_size; -} +}
\ No newline at end of file diff --git a/low-can-binding/utils/converter.hpp b/low-can-binding/utils/converter.hpp index e8a40f5b..1e6ecc18 100644 --- a/low-can-binding/utils/converter.hpp +++ b/low-can-binding/utils/converter.hpp @@ -30,10 +30,4 @@ class converter_t int &new_end_byte, uint8_t &new_start_bit, uint8_t &new_end_bit); - static uint32_t bit_position_swap(unsigned int msg_length, - unsigned int bit_position, - unsigned int bit_size); - static uint32_t continental_bit_position_mess(unsigned int msg_length, - unsigned int bit_position, - unsigned int bit_size); }; |