diff options
Diffstat (limited to 'CAN-binder/low-can-binding/can/can-bus-dev.cpp')
| -rw-r--r-- | CAN-binder/low-can-binding/can/can-bus-dev.cpp | 57 |
1 files changed, 16 insertions, 41 deletions
diff --git a/CAN-binder/low-can-binding/can/can-bus-dev.cpp b/CAN-binder/low-can-binding/can/can-bus-dev.cpp index fb76498..6fab8e9 100644 --- a/CAN-binder/low-can-binding/can/can-bus-dev.cpp +++ b/CAN-binder/low-can-binding/can/can-bus-dev.cpp @@ -19,9 +19,6 @@ #include <map> #include <mutex> #include <unistd.h> -#include <string.h> -#include <net/if.h> -#include <sys/ioctl.h> #include <linux/can/raw.h> #include "can-bus-dev.hpp" @@ -54,63 +51,42 @@ uint32_t can_bus_dev_t::get_address() const /// timestamp received messages and pass the socket to FD mode. /// /// @return -1 if something wrong. -int can_bus_dev_t::open() +int can_bus_dev_t::open_raw() { const int canfd_on = 1; const int timestamp_on = 1; - struct ifreq ifr; struct timeval timeout; - DEBUG(binder_interface, "open: CAN Handler socket : %d", can_socket_.socket()); - if (can_socket_) - return 0; + DEBUG(binder_interface, "open_raw: CAN Handler socket : %d", can_socket_.socket()); + can_socket_.open(device_name_); - can_socket_.open(PF_CAN, SOCK_RAW, CAN_RAW); + // Set some option on the socket : timeout, timestamp and canfd frame usage. if (can_socket_) { - DEBUG(binder_interface, "open: CAN Handler socket correctly initialized : %d", can_socket_.socket()); + DEBUG(binder_interface, "open_raw: CAN Handler socket correctly initialized : %d", can_socket_.socket()); // Set timeout for read can_socket_.setopt(SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout)); // Set timestamp for receveid frame if (can_socket_.setopt(SOL_SOCKET, SO_TIMESTAMP, ×tamp_on, sizeof(timestamp_on)) < 0) - WARNING(binder_interface, "open: setsockopt SO_TIMESTAMP error: %s", ::strerror(errno)); - DEBUG(binder_interface, "open: Switch CAN Handler socket to use fd mode"); + WARNING(binder_interface, "open_raw: setsockopt SO_TIMESTAMP error: %s", ::strerror(errno)); + DEBUG(binder_interface, "open_raw: Switch CAN Handler socket to use fd mode"); // try to switch the socket into CAN_FD mode if (can_socket_.setopt(SOL_CAN_RAW, CAN_RAW_FD_FRAMES, &canfd_on, sizeof(canfd_on)) < 0) { - NOTICE(binder_interface, "open: Can not switch into CAN Extended frame format."); + NOTICE(binder_interface, "open_raw: Can not switch into CAN Extended frame format."); is_fdmode_on_ = false; } else { - DEBUG(binder_interface, "open: Correctly set up CAN socket to use FD frames."); + DEBUG(binder_interface, "open_raw: Correctly set up CAN socket to use FD frames."); is_fdmode_on_ = true; } - - // Attempts to open a socket to CAN bus - ::strcpy(ifr.ifr_name, device_name_.c_str()); - DEBUG(binder_interface, "open: ifr_name is : %s", ifr.ifr_name); - if(::ioctl(can_socket_.socket(), SIOCGIFINDEX, &ifr) < 0) - { - ERROR(binder_interface, "open: ioctl failed. Error was : %s", strerror(errno)); - } - else - { - txAddress_.can_family = AF_CAN; - txAddress_.can_ifindex = ifr.ifr_ifindex; - - // And bind it to txAddress - DEBUG(binder_interface, "Bind the socket"); - if (can_socket_.bind((struct sockaddr *)&txAddress_, sizeof(txAddress_)) < 0) - ERROR(binder_interface, "Bind failed. %s", strerror(errno)); - else return 0; - } - close(); } - else ERROR(binder_interface, "open: socket could not be created. Error was : %s", ::strerror(errno)); + else + ERROR(binder_interface, "open_raw: socket could not be created. Error was : %s", ::strerror(errno)); return -1; } @@ -199,8 +175,7 @@ int can_bus_dev_t::send(can_message_t& can_msg) if(can_socket_) { - nbytes = ::sendto(can_socket_.socket(), &f, sizeof(struct canfd_frame), 0, - (struct sockaddr*)&txAddress_, sizeof(txAddress_)); + nbytes = can_socket_.send(f); if (nbytes == -1) { ERROR(binder_interface, "send_can_message: Sending CAN frame failed."); @@ -211,7 +186,8 @@ int can_bus_dev_t::send(can_message_t& can_msg) else { ERROR(binder_interface, "send_can_message: socket not initialized. Attempt to reopen can device socket."); - open(); + open_raw(); + return -1; } return 0; } @@ -237,8 +213,7 @@ bool can_bus_dev_t::shims_send(const uint32_t arbitration_id, const uint8_t* dat if(can_socket_) { - nbytes = ::sendto(can_socket_.socket(), &f, sizeof(struct canfd_frame), 0, - (struct sockaddr*)&txAddress_, sizeof(txAddress_)); + nbytes = can_socket_.send(f); if (nbytes == -1) { ERROR(binder_interface, "send_can_message: Sending CAN frame failed."); @@ -249,7 +224,7 @@ bool can_bus_dev_t::shims_send(const uint32_t arbitration_id, const uint8_t* dat else { ERROR(binder_interface, "send_can_message: socket not initialized. Attempt to reopen can device socket."); - open(); + open_raw(); } return false; } |