1# SPDX-License-Identifier: GPL-2.0-only 2menu "CAN Device Drivers" 3 4config CAN_VCAN 5 tristate "Virtual Local CAN Interface (vcan)" 6 ---help--- 7 Similar to the network loopback devices, vcan offers a 8 virtual local CAN interface. 9 10 This driver can also be built as a module. If so, the module 11 will be called vcan. 12 13config CAN_VXCAN 14 tristate "Virtual CAN Tunnel (vxcan)" 15 ---help--- 16 Similar to the virtual ethernet driver veth, vxcan implements a 17 local CAN traffic tunnel between two virtual CAN network devices. 18 When creating a vxcan, two vxcan devices are created as pair. 19 When one end receives the packet it appears on its pair and vice 20 versa. The vxcan can be used for cross namespace communication. 21 22 In opposite to vcan loopback devices the vxcan only forwards CAN 23 frames to its pair and does *not* provide a local echo of sent 24 CAN frames. To disable a potential echo in af_can.c the vxcan driver 25 announces IFF_ECHO in the interface flags. To have a clean start 26 in each namespace the CAN GW hop counter is set to zero. 27 28 This driver can also be built as a module. If so, the module 29 will be called vxcan. 30 31config CAN_SLCAN 32 tristate "Serial / USB serial CAN Adaptors (slcan)" 33 depends on TTY 34 ---help--- 35 CAN driver for several 'low cost' CAN interfaces that are attached 36 via serial lines or via USB-to-serial adapters using the LAWICEL 37 ASCII protocol. The driver implements the tty linediscipline N_SLCAN. 38 39 As only the sending and receiving of CAN frames is implemented, this 40 driver should work with the (serial/USB) CAN hardware from: 41 www.canusb.com / www.can232.com / www.mictronics.de / www.canhack.de 42 43 Userspace tools to attach the SLCAN line discipline (slcan_attach, 44 slcand) can be found in the can-utils at the SocketCAN SVN, see 45 http://developer.berlios.de/projects/socketcan for details. 46 47 The slcan driver supports up to 10 CAN netdevices by default which 48 can be changed by the 'maxdev=xx' module option. This driver can 49 also be built as a module. If so, the module will be called slcan. 50 51config CAN_DEV 52 tristate "Platform CAN drivers with Netlink support" 53 default y 54 ---help--- 55 Enables the common framework for platform CAN drivers with Netlink 56 support. This is the standard library for CAN drivers. 57 If unsure, say Y. 58 59if CAN_DEV 60 61config CAN_CALC_BITTIMING 62 bool "CAN bit-timing calculation" 63 default y 64 ---help--- 65 If enabled, CAN bit-timing parameters will be calculated for the 66 bit-rate specified via Netlink argument "bitrate" when the device 67 get started. This works fine for the most common CAN controllers 68 with standard bit-rates but may fail for exotic bit-rates or CAN 69 source clock frequencies. Disabling saves some space, but then the 70 bit-timing parameters must be specified directly using the Netlink 71 arguments "tq", "prop_seg", "phase_seg1", "phase_seg2" and "sjw". 72 If unsure, say Y. 73 74config CAN_LEDS 75 bool "Enable LED triggers for Netlink based drivers" 76 depends on LEDS_CLASS 77 # The netdev trigger (LEDS_TRIGGER_NETDEV) should be able to do 78 # everything that this driver is doing. This is marked as broken 79 # because it uses stuff that is intended to be changed or removed. 80 # Please consider switching to the netdev trigger and confirm it 81 # fulfills your needs instead of fixing this driver. 82 depends on BROKEN 83 select LEDS_TRIGGERS 84 ---help--- 85 This option adds two LED triggers for packet receive and transmit 86 events on each supported CAN device. 87 88 Say Y here if you are working on a system with led-class supported 89 LEDs and you want to use them as canbus activity indicators. 90 91config CAN_AT91 92 tristate "Atmel AT91 onchip CAN controller" 93 depends on (ARCH_AT91 || COMPILE_TEST) && HAS_IOMEM 94 ---help--- 95 This is a driver for the SoC CAN controller in Atmel's AT91SAM9263 96 and AT91SAM9X5 processors. 97 98config CAN_FLEXCAN 99 tristate "Support for Freescale FLEXCAN based chips" 100 depends on OF && HAS_IOMEM 101 ---help--- 102 Say Y here if you want to support for Freescale FlexCAN. 103 104config CAN_GRCAN 105 tristate "Aeroflex Gaisler GRCAN and GRHCAN CAN devices" 106 depends on OF && HAS_DMA 107 ---help--- 108 Say Y here if you want to use Aeroflex Gaisler GRCAN or GRHCAN. 109 Note that the driver supports little endian, even though little 110 endian syntheses of the cores would need some modifications on 111 the hardware level to work. 112 113config CAN_JANZ_ICAN3 114 tristate "Janz VMOD-ICAN3 Intelligent CAN controller" 115 depends on MFD_JANZ_CMODIO 116 ---help--- 117 Driver for Janz VMOD-ICAN3 Intelligent CAN controller module, which 118 connects to a MODULbus carrier board. 119 120 This driver can also be built as a module. If so, the module will be 121 called janz-ican3.ko. 122 123config CAN_SUN4I 124 tristate "Allwinner A10 CAN controller" 125 depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST 126 ---help--- 127 Say Y here if you want to use CAN controller found on Allwinner 128 A10/A20 SoCs. 129 130 To compile this driver as a module, choose M here: the module will 131 be called sun4i_can. 132 133config CAN_TI_HECC 134 depends on ARM 135 tristate "TI High End CAN Controller" 136 ---help--- 137 Driver for TI HECC (High End CAN Controller) module found on many 138 TI devices. The device specifications are available from www.ti.com 139 140config CAN_XILINXCAN 141 tristate "Xilinx CAN" 142 depends on ARCH_ZYNQ || ARM64 || MICROBLAZE || COMPILE_TEST 143 depends on COMMON_CLK && HAS_IOMEM 144 ---help--- 145 Xilinx CAN driver. This driver supports both soft AXI CAN IP and 146 Zynq CANPS IP. 147 148config PCH_CAN 149 tristate "Intel EG20T PCH CAN controller" 150 depends on PCI && (X86_32 || COMPILE_TEST) 151 ---help--- 152 This driver is for PCH CAN of Topcliff (Intel EG20T PCH) which 153 is an IOH for x86 embedded processor (Intel Atom E6xx series). 154 This driver can access CAN bus. 155 156source "drivers/net/can/c_can/Kconfig" 157source "drivers/net/can/cc770/Kconfig" 158source "drivers/net/can/ifi_canfd/Kconfig" 159source "drivers/net/can/m_can/Kconfig" 160source "drivers/net/can/mscan/Kconfig" 161source "drivers/net/can/peak_canfd/Kconfig" 162source "drivers/net/can/rcar/Kconfig" 163source "drivers/net/can/sja1000/Kconfig" 164source "drivers/net/can/softing/Kconfig" 165source "drivers/net/can/spi/Kconfig" 166source "drivers/net/can/usb/Kconfig" 167 168endif 169 170config CAN_DEBUG_DEVICES 171 bool "CAN devices debugging messages" 172 ---help--- 173 Say Y here if you want the CAN device drivers to produce a bunch of 174 debug messages to the system log. Select this if you are having 175 a problem with CAN support and want to see more of what is going 176 on. 177 178endmenu 179