Commit abf82013 authored by Henrik Brix Andersen's avatar Henrik Brix Andersen Committed by Christopher Friedt
Browse files

drivers: can: add support for configuring CAN emulation in QEMU 



Add support for configuring CAN emulation support in QEMU. For now, the
only supported CAN controller is the single-channel Kvaser PCIcan PCI card.

Signed-off-by: default avatarHenrik Brix Andersen <henrik@brixandersen.dk>
parent 58e12726

cmake/emu/qemu.cmake

+16 −0
Original line number Diff line number Diff line
@@ -269,6 +269,22 @@ elseif(QEMU_NET_STACK) 
  endif()

endif(QEMU_PIPE_STACK)



if(CONFIG_CAN)

  # Add CAN bus 0

  list(APPEND QEMU_FLAGS -object can-bus,id=canbus0)



  if(NOT "${CONFIG_CAN_QEMU_IFACE_NAME}" STREQUAL "")

    # Connect CAN bus 0 to host SocketCAN interface

    list(APPEND QEMU_FLAGS

      -object can-host-socketcan,id=canhost0,if=${CONFIG_CAN_QEMU_IFACE_NAME},canbus=canbus0)

  endif()



  if(CONFIG_CAN_KVASER_PCI)

    # Emulate a single-channel Kvaser PCIcan card connected to CAN bus 0

    list(APPEND QEMU_FLAGS -device kvaser_pci,canbus=canbus0)

  endif()

endif()



if(CONFIG_X86_64 AND NOT CONFIG_QEMU_UEFI_BOOT)

  # QEMU doesn't like 64-bit ELF files. Since we don't use any >4GB

  # addresses, converting it to 32-bit is safe enough for emulation.

drivers/can/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -89,6 +89,15 @@ config CAN_AUTO_BUS_OFF_RECOVERY 
	  recessive bits). When this option is enabled, the recovery API is not

	  available.



config CAN_QEMU_IFACE_NAME

	string "SocketCAN interface name for QEMU"

	default ""

	depends on QEMU_TARGET

	help

	  The SocketCAN interface name for QEMU. This value, if set, is given as "if" parameter to

	  the "-object can-host-socketcan" qemu command line option. The CAN interface must be

	  configured before starting QEMU.



source "drivers/can/Kconfig.sam"

source "drivers/can/Kconfig.stm32"

source "drivers/can/Kconfig.stm32fd"

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