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[ .. KEMBALI ]
π a.out.h
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π acct.h
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π acrn.h
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π adb.h
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π adfs_fs.h
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π affs_hardblocks.h
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π agpgart.h
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π aio_abi.h
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π am437x-vpfe.h
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π android/
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π apm_bios.h
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π arcfb.h
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π arm_sdei.h
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π aspeed-lpc-ctrl.h
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π aspeed-p2a-ctrl.h
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π atalk.h
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π atm.h
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π atm_eni.h
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π atm_he.h
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π atm_idt77105.h
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π atm_nicstar.h
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π atm_tcp.h
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π atm_zatm.h
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π atmapi.h
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π atmarp.h
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π atmbr2684.h
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π atmclip.h
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π atmdev.h
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π atmioc.h
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π atmlec.h
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π atmmpc.h
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π atmppp.h
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π atmsap.h
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π atmsvc.h
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π audit.h
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π auto_dev-ioctl.h
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π auto_fs.h
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π auto_fs4.h
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π auxvec.h
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π ax25.h
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π batadv_packet.h
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π batman_adv.h
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π baycom.h
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π bcm933xx_hcs.h
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π bfs_fs.h
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π binfmts.h
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π bits.h
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π blkpg.h
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π blktrace_api.h
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π blkzoned.h
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π bpf.h
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π bpf_common.h
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π bpf_perf_event.h
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π bpfilter.h
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π bpqether.h
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π bsg.h
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π bt-bmc.h
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π btf.h
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π btrfs.h
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π btrfs_tree.h
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π byteorder/
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π cachefiles.h
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π caif/
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π can/
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π can.h
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π capability.h
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π capi.h
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π cciss_defs.h
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π cciss_ioctl.h
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π ccs.h
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π cdrom.h
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π cec-funcs.h
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π cec.h
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π cfm_bridge.h
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π cgroupstats.h
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π chio.h
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π cifs/
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π close_range.h
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π cm4000_cs.h
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π cn_proc.h
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π coda.h
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π coff.h
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π connector.h
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π const.h
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π coresight-stm.h
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π cramfs_fs.h
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π cryptouser.h
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π cuda.h
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π cxl_mem.h
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π cycx_cfm.h
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π dcbnl.h
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π dccp.h
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π devlink.h
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π dlm.h
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π dlm_device.h
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π dlm_netlink.h
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π dlm_plock.h
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π dlmconstants.h
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π dm-ioctl.h
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π dm-log-userspace.h
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π dma-buf.h
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π dma-heap.h
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π dn.h
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π dns_resolver.h
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π dpll.h
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π dqblk_xfs.h
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π dvb/
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π edd.h
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π efs_fs_sb.h
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π elf-em.h
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π elf-fdpic.h
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π elf.h
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π errno.h
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π errqueue.h
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π erspan.h
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π ethtool.h
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π ethtool_netlink.h
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π ethtool_netlink_generated.h
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π eventfd.h
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π eventpoll.h
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π f2fs.h
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π fadvise.h
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π falloc.h
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π fanotify.h
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π fb.h
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π fcntl.h
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π fd.h
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π fdreg.h
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π fib_rules.h
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π fiemap.h
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π filter.h
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π firewire-cdev.h
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π firewire-constants.h
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π fou.h
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π fpga-dfl.h
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π fs.h
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π fscrypt.h
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π fsi.h
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π fsl_hypervisor.h
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π fsl_mc.h
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π fsmap.h
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π fsverity.h
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π fuse.h
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π futex.h
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π gameport.h
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π gen_stats.h
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π genetlink.h
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π genwqe/
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π gfs2_ondisk.h
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π gpio.h
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π gsmmux.h
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π gtp.h
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π handshake.h
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π hash_info.h
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π hdlc/
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π hdlc.h
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π hdlcdrv.h
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π hdreg.h
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π hid.h
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π hiddev.h
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π hidraw.h
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π hpet.h
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π hsi/
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π hsr_netlink.h
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π hw_breakpoint.h
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π hyperv.h
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π i2c-dev.h
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π i2c.h
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π i2o-dev.h
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π i8k.h
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π icmp.h
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π icmpv6.h
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π idxd.h
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π if.h
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π if_addr.h
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π if_addrlabel.h
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π if_alg.h
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π if_arcnet.h
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π if_arp.h
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π if_bonding.h
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π if_bridge.h
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π if_cablemodem.h
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π if_eql.h
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π if_ether.h
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π if_fc.h
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π if_fddi.h
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π if_hippi.h
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π if_infiniband.h
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π if_link.h
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π if_ltalk.h
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π if_macsec.h
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π if_packet.h
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π if_phonet.h
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π if_plip.h
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π if_ppp.h
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π if_pppol2tp.h
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π if_pppox.h
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π if_slip.h
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π if_team.h
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π if_tun.h
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π if_tunnel.h
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π if_vlan.h
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π if_x25.h
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π if_xdp.h
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π ife.h
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π igmp.h
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π iio/
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π ila.h
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π in.h
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π in6.h
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π in_route.h
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π inet_diag.h
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π inotify.h
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π input-event-codes.h
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π input.h
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π io_uring.h
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π ioctl.h
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π iommufd.h
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π ioprio.h
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π ip.h
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π ip6_tunnel.h
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π ip_vs.h
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π ipc.h
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π ipmi.h
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π ipmi_bmc.h
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π ipmi_msgdefs.h
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π ipmi_ssif_bmc.h
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π ipsec.h
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π ipv6.h
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π ipv6_route.h
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π ipx.h
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π irqnr.h
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π isdn/
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π iso_fs.h
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π isst_if.h
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π ivtv.h
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π ivtvfb.h
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π jffs2.h
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π joystick.h
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π kcm.h
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π kcmp.h
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π kcov.h
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π kd.h
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π kdev_t.h
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π kernel-page-flags.h
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π kernel.h
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π kernelcapi.h
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π kexec.h
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π keyboard.h
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π keyctl.h
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π kfd_ioctl.h
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π kfd_sysfs.h
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π kvm.h
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π kvm_para.h
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π l2tp.h
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π landlock.h
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π libc-compat.h
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π limits.h
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π lirc.h
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π llc.h
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π loadpin.h
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π loop.h
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π lp.h
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π lsm.h
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π lwtunnel.h
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π magic.h
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π major.h
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π map_to_7segment.h
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π matroxfb.h
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π max2175.h
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π mdio.h
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π media-bus-format.h
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π media.h
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π mei.h
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π mei_uuid.h
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π membarrier.h
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π memfd.h
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π mempolicy.h
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π meye.h
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π mii.h
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π minix_fs.h
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π misc/
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π mman.h
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π mmc/
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π mmtimer.h
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π module.h
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π mount.h
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π mpls.h
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π mpls_iptunnel.h
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π mptcp.h
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π mptcp_pm.h
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π mqueue.h
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π mroute.h
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π mroute6.h
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π mrp_bridge.h
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π msdos_fs.h
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π msg.h
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π mshv.h
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π mtio.h
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π nbd-netlink.h
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π nbd.h
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π ncsi.h
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π ndctl.h
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π neighbour.h
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π net.h
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π net_dropmon.h
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π net_namespace.h
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π net_shaper.h
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π net_tstamp.h
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π netconf.h
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π netdev.h
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π netdevice.h
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π netfilter/
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π netfilter.h
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π netfilter_arp/
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π netfilter_arp.h
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π netfilter_bridge/
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π netfilter_bridge.h
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π netfilter_decnet.h
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π netfilter_ipv4/
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π netfilter_ipv4.h
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π netfilter_ipv6/
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π netfilter_ipv6.h
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π netlink.h
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π netlink_diag.h
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π netrom.h
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π nexthop.h
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π nfc.h
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π nfs.h
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π nfs2.h
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π nfs3.h
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π nfs4.h
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π nfs4_mount.h
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π nfs_fs.h
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π nfs_idmap.h
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π nfs_mount.h
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π nfsacl.h
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π nfsd/
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π nfsd_netlink.h
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π nilfs2_api.h
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π nilfs2_ondisk.h
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π nitro_enclaves.h
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π nl80211.h
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π nsfs.h
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π nubus.h
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π nvme_ioctl.h
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π nvram.h
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π omap3isp.h
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π omapfb.h
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π oom.h
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π openat2.h
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π openvswitch.h
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π packet_diag.h
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π param.h
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π parport.h
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π patchkey.h
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π pci.h
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π pci_regs.h
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π pcitest.h
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π perf_event.h
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π personality.h
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π pfkeyv2.h
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π pfrut.h
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π pg.h
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π phantom.h
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π phonet.h
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π pidfd.h
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π pkt_cls.h
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π pkt_sched.h
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π pktcdvd.h
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π pmu.h
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π poll.h
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π posix_acl.h
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π posix_acl_xattr.h
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π posix_types.h
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π ppdev.h
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π ppp-comp.h
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π ppp-ioctl.h
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π ppp_defs.h
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π pps.h
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π pr.h
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π prctl.h
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π psample.h
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π psci.h
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π psp-dbc.h
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π psp-sev.h
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π ptp_clock.h
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π ptrace.h
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π qemu_fw_cfg.h
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π qnx4_fs.h
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π qnxtypes.h
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π qrtr.h
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π quota.h
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π radeonfb.h
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π raid/
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π random.h
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π rds.h
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π reboot.h
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π reiserfs_fs.h
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π reiserfs_xattr.h
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π remoteproc_cdev.h
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π resource.h
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π rfkill.h
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π rio_cm_cdev.h
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π rio_mport_cdev.h
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π rkisp1-config.h
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π romfs_fs.h
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π rose.h
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π route.h
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π rpl.h
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π rpl_iptunnel.h
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π rpmsg.h
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π rpmsg_types.h
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π rseq.h
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π rtc.h
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π rtnetlink.h
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π rxrpc.h
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π scc.h
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π sched/
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π sched.h
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π scif_ioctl.h
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π screen_info.h
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π sctp.h
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π seccomp.h
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π securebits.h
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π sed-opal.h
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π seg6.h
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π seg6_genl.h
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π seg6_hmac.h
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π seg6_iptunnel.h
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π seg6_local.h
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π selinux_netlink.h
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π sem.h
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π serial.h
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π serial_core.h
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π serial_reg.h
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π serio.h
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π sev-guest.h
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π shm.h
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π signal.h
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π signalfd.h
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π smc.h
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π smc_diag.h
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π smiapp.h
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π snmp.h
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π sock_diag.h
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π socket.h
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π sockios.h
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π sonet.h
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π sonypi.h
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π sound.h
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π soundcard.h
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π spi/
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π stat.h
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π stddef.h
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π stm.h
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π string.h
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π sunrpc/
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π surface_aggregator/
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π suspend_ioctls.h
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π swab.h
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π switchtec_ioctl.h
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π sync_file.h
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π synclink.h
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π sysctl.h
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π sysinfo.h
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π target_core_user.h
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π taskstats.h
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π tc_act/
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π tc_ematch/
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π tcp.h
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π tcp_metrics.h
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π tdx-guest.h
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π tee.h
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π termios.h
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π thermal.h
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π time.h
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π time_types.h
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π timerfd.h
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π times.h
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π timex.h
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π tiocl.h
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π tipc.h
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π tipc_config.h
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π tipc_netlink.h
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π tipc_sockets_diag.h
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π tls.h
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π toshiba.h
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π tps6594_pfsm.h
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π tty.h
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π tty_flags.h
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π types.h
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π udf_fs_i.h
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π udmabuf.h
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π udp.h
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π uhid.h
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π uinput.h
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π uio.h
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π uleds.h
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π ultrasound.h
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π um_timetravel.h
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π un.h
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π unistd.h
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π unix_diag.h
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π usb/
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π usbdevice_fs.h
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π usbip.h
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π userfaultfd.h
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π userio.h
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π utime.h
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π utsname.h
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π uuid.h
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π uvcvideo.h
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π v4l2-common.h
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π v4l2-controls.h
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π v4l2-dv-timings.h
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π v4l2-mediabus.h
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π v4l2-subdev.h
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π vbox_err.h
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π vbox_vmmdev_types.h
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π vboxguest.h
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π vdpa.h
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π vduse.h
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π version.h
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π veth.h
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π vfio.h
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π vfio_ccw.h
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π vfio_zdev.h
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π vhost.h
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π vhost_types.h
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π videodev2.h
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π virtio_9p.h
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π virtio_balloon.h
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π virtio_blk.h
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π virtio_bt.h
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π virtio_config.h
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π virtio_console.h
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π virtio_crypto.h
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π virtio_fs.h
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π virtio_gpio.h
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π virtio_gpu.h
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π virtio_i2c.h
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π virtio_ids.h
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π virtio_input.h
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π virtio_iommu.h
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π virtio_mem.h
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π virtio_mmio.h
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π virtio_net.h
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π virtio_pci.h
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π virtio_pcidev.h
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π virtio_pmem.h
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π virtio_ring.h
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π virtio_rng.h
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π virtio_scmi.h
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π virtio_scsi.h
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π virtio_snd.h
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π virtio_types.h
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π virtio_vsock.h
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π vm_sockets.h
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π vm_sockets_diag.h
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π vmcore.h
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π vsockmon.h
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π vt.h
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π vtpm_proxy.h
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π wait.h
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π watch_queue.h
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π watchdog.h
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π wireguard.h
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π wireless.h
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π wmi.h
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π wwan.h
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π x25.h
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π xattr.h
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π xdp_diag.h
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π xfrm.h
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π xilinx-v4l2-controls.h
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π zorro.h
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π zorro_ids.h
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EDITING: can.h
/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */ /* * linux/can.h * * Definitions for CAN network layer (socket addr / CAN frame / CAN filter) * * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> * Urs Thuermann <urs.thuermann@volkswagen.de> * Copyright (c) 2002-2007 Volkswagen Group Electronic Research * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Volkswagen nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * Alternatively, provided that this notice is retained in full, this * software may be distributed under the terms of the GNU General * Public License ("GPL") version 2, in which case the provisions of the * GPL apply INSTEAD OF those given above. * * The provided data structures and external interfaces from this code * are not restricted to be used by modules with a GPL compatible license. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. */ #ifndef _CAN_H #define _CAN_H #include <linux/types.h> #include <linux/socket.h> #include <linux/stddef.h> /* for offsetof */ /* controller area network (CAN) kernel definitions */ /* special address description flags for the CAN_ID */ #define CAN_EFF_FLAG 0x80000000U /* EFF/SFF is set in the MSB */ #define CAN_RTR_FLAG 0x40000000U /* remote transmission request */ #define CAN_ERR_FLAG 0x20000000U /* error message frame */ /* valid bits in CAN ID for frame formats */ #define CAN_SFF_MASK 0x000007FFU /* standard frame format (SFF) */ #define CAN_EFF_MASK 0x1FFFFFFFU /* extended frame format (EFF) */ #define CAN_ERR_MASK 0x1FFFFFFFU /* omit EFF, RTR, ERR flags */ #define CANXL_PRIO_MASK CAN_SFF_MASK /* 11 bit priority mask */ /* * Controller Area Network Identifier structure * * bit 0-28 : CAN identifier (11/29 bit) * bit 29 : error message frame flag (0 = data frame, 1 = error message) * bit 30 : remote transmission request flag (1 = rtr frame) * bit 31 : frame format flag (0 = standard 11 bit, 1 = extended 29 bit) */ typedef __u32 canid_t; #define CAN_SFF_ID_BITS 11 #define CAN_EFF_ID_BITS 29 #define CANXL_PRIO_BITS CAN_SFF_ID_BITS /* * Controller Area Network Error Message Frame Mask structure * * bit 0-28 : error class mask (see include/uapi/linux/can/error.h) * bit 29-31 : set to zero */ typedef __u32 can_err_mask_t; /* CAN payload length and DLC definitions according to ISO 11898-1 */ #define CAN_MAX_DLC 8 #define CAN_MAX_RAW_DLC 15 #define CAN_MAX_DLEN 8 /* CAN FD payload length and DLC definitions according to ISO 11898-7 */ #define CANFD_MAX_DLC 15 #define CANFD_MAX_DLEN 64 /* * CAN XL payload length and DLC definitions according to ISO 11898-1 * CAN XL DLC ranges from 0 .. 2047 => data length from 1 .. 2048 byte */ #define CANXL_MIN_DLC 0 #define CANXL_MAX_DLC 2047 #define CANXL_MAX_DLC_MASK 0x07FF #define CANXL_MIN_DLEN 1 #define CANXL_MAX_DLEN 2048 /** * struct can_frame - Classical CAN frame structure (aka CAN 2.0B) * @can_id: CAN ID of the frame and CAN_*_FLAG flags, see canid_t definition * @len: CAN frame payload length in byte (0 .. 8) * @can_dlc: deprecated name for CAN frame payload length in byte (0 .. 8) * @__pad: padding * @__res0: reserved / padding * @len8_dlc: optional DLC value (9 .. 15) at 8 byte payload length * len8_dlc contains values from 9 .. 15 when the payload length is * 8 bytes but the DLC value (see ISO 11898-1) is greater then 8. * CAN_CTRLMODE_CC_LEN8_DLC flag has to be enabled in CAN driver. * @data: CAN frame payload (up to 8 byte) */ struct can_frame { canid_t can_id; /* 32 bit CAN_ID + EFF/RTR/ERR flags */ union { /* CAN frame payload length in byte (0 .. CAN_MAX_DLEN) * was previously named can_dlc so we need to carry that * name for legacy support */ __u8 len; __u8 can_dlc; /* deprecated */ } __attribute__((packed)); /* disable padding added in some ABIs */ __u8 __pad; /* padding */ __u8 __res0; /* reserved / padding */ __u8 len8_dlc; /* optional DLC for 8 byte payload length (9 .. 15) */ __u8 data[CAN_MAX_DLEN] __attribute__((aligned(8))); }; /* * defined bits for canfd_frame.flags * * The use of struct canfd_frame implies the FD Frame (FDF) bit to * be set in the CAN frame bitstream on the wire. The FDF bit switch turns * the CAN controllers bitstream processor into the CAN FD mode which creates * two new options within the CAN FD frame specification: * * Bit Rate Switch - to indicate a second bitrate is/was used for the payload * Error State Indicator - represents the error state of the transmitting node * * As the CANFD_ESI bit is internally generated by the transmitting CAN * controller only the CANFD_BRS bit is relevant for real CAN controllers when * building a CAN FD frame for transmission. Setting the CANFD_ESI bit can make * sense for virtual CAN interfaces to test applications with echoed frames. * * The struct can_frame and struct canfd_frame intentionally share the same * layout to be able to write CAN frame content into a CAN FD frame structure. * When this is done the former differentiation via CAN_MTU / CANFD_MTU gets * lost. CANFD_FDF allows programmers to mark CAN FD frames in the case of * using struct canfd_frame for mixed CAN / CAN FD content (dual use). * Since the introduction of CAN XL the CANFD_FDF flag is set in all CAN FD * frame structures provided by the CAN subsystem of the Linux kernel. */ #define CANFD_BRS 0x01 /* bit rate switch (second bitrate for payload data) */ #define CANFD_ESI 0x02 /* error state indicator of the transmitting node */ #define CANFD_FDF 0x04 /* mark CAN FD for dual use of struct canfd_frame */ /** * struct canfd_frame - CAN flexible data rate frame structure * @can_id: CAN ID of the frame and CAN_*_FLAG flags, see canid_t definition * @len: frame payload length in byte (0 .. CANFD_MAX_DLEN) * @flags: additional flags for CAN FD * @__res0: reserved / padding * @__res1: reserved / padding * @data: CAN FD frame payload (up to CANFD_MAX_DLEN byte) */ struct canfd_frame { canid_t can_id; /* 32 bit CAN_ID + EFF/RTR/ERR flags */ __u8 len; /* frame payload length in byte */ __u8 flags; /* additional flags for CAN FD */ __u8 __res0; /* reserved / padding */ __u8 __res1; /* reserved / padding */ __u8 data[CANFD_MAX_DLEN] __attribute__((aligned(8))); }; /* * defined bits for canxl_frame.flags * * The canxl_frame.flags element contains two bits CANXL_XLF and CANXL_SEC * and shares the relative position of the struct can[fd]_frame.len element. * The CANXL_XLF bit ALWAYS needs to be set to indicate a valid CAN XL frame. * As a side effect setting this bit intentionally breaks the length checks * for Classical CAN and CAN FD frames. * * Undefined bits in canxl_frame.flags are reserved and shall be set to zero. */ #define CANXL_XLF 0x80 /* mandatory CAN XL frame flag (must always be set!) */ #define CANXL_SEC 0x01 /* Simple Extended Content (security/segmentation) */ /* the 8-bit VCID is optionally placed in the canxl_frame.prio element */ #define CANXL_VCID_OFFSET 16 /* bit offset of VCID in prio element */ #define CANXL_VCID_VAL_MASK 0xFFUL /* VCID is an 8-bit value */ #define CANXL_VCID_MASK (CANXL_VCID_VAL_MASK << CANXL_VCID_OFFSET) /** * struct canxl_frame - CAN with e'X'tended frame 'L'ength frame structure * @prio: 11 bit arbitration priority with zero'ed CAN_*_FLAG flags / VCID * @flags: additional flags for CAN XL * @sdt: SDU (service data unit) type * @len: frame payload length in byte (CANXL_MIN_DLEN .. CANXL_MAX_DLEN) * @af: acceptance field * @data: CAN XL frame payload (CANXL_MIN_DLEN .. CANXL_MAX_DLEN byte) * * @prio shares the same position as @can_id from struct can[fd]_frame. */ struct canxl_frame { canid_t prio; /* 11 bit priority for arbitration / 8 bit VCID */ __u8 flags; /* additional flags for CAN XL */ __u8 sdt; /* SDU (service data unit) type */ __u16 len; /* frame payload length in byte */ __u32 af; /* acceptance field */ __u8 data[CANXL_MAX_DLEN]; }; #define CAN_MTU (sizeof(struct can_frame)) #define CANFD_MTU (sizeof(struct canfd_frame)) #define CANXL_MTU (sizeof(struct canxl_frame)) #define CANXL_HDR_SIZE (offsetof(struct canxl_frame, data)) #define CANXL_MIN_MTU (CANXL_HDR_SIZE + 64) #define CANXL_MAX_MTU CANXL_MTU /* particular protocols of the protocol family PF_CAN */ #define CAN_RAW 1 /* RAW sockets */ #define CAN_BCM 2 /* Broadcast Manager */ #define CAN_TP16 3 /* VAG Transport Protocol v1.6 */ #define CAN_TP20 4 /* VAG Transport Protocol v2.0 */ #define CAN_MCNET 5 /* Bosch MCNet */ #define CAN_ISOTP 6 /* ISO 15765-2 Transport Protocol */ #define CAN_J1939 7 /* SAE J1939 */ #define CAN_NPROTO 8 #define SOL_CAN_BASE 100 /** * struct sockaddr_can - the sockaddr structure for CAN sockets * @can_family: address family number AF_CAN. * @can_ifindex: CAN network interface index. * @can_addr: protocol specific address information */ struct sockaddr_can { __kernel_sa_family_t can_family; int can_ifindex; union { /* transport protocol class address information (e.g. ISOTP) */ struct { canid_t rx_id, tx_id; } tp; /* J1939 address information */ struct { /* 8 byte name when using dynamic addressing */ __u64 name; /* pgn: * 8 bit: PS in PDU2 case, else 0 * 8 bit: PF * 1 bit: DP * 1 bit: reserved */ __u32 pgn; /* 1 byte address */ __u8 addr; } j1939; /* reserved for future CAN protocols address information */ } can_addr; }; /** * struct can_filter - CAN ID based filter in can_register(). * @can_id: relevant bits of CAN ID which are not masked out. * @can_mask: CAN mask (see description) * * Description: * A filter matches, when * * <received_can_id> & mask == can_id & mask * * The filter can be inverted (CAN_INV_FILTER bit set in can_id) or it can * filter for error message frames (CAN_ERR_FLAG bit set in mask). */ struct can_filter { canid_t can_id; canid_t can_mask; }; #define CAN_INV_FILTER 0x20000000U /* to be set in can_filter.can_id */ #endif /* !_UAPI_CAN_H */
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