1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _UAPI_CAN_H 20 #define _UAPI_CAN_H 21 #include <linux/types.h> 22 #include <linux/socket.h> 23 #include <linux/stddef.h> 24 #define CAN_EFF_FLAG 0x80000000U 25 #define CAN_RTR_FLAG 0x40000000U 26 #define CAN_ERR_FLAG 0x20000000U 27 #define CAN_SFF_MASK 0x000007FFU 28 #define CAN_EFF_MASK 0x1FFFFFFFU 29 #define CAN_ERR_MASK 0x1FFFFFFFU 30 #define CANXL_PRIO_MASK CAN_SFF_MASK 31 typedef __u32 canid_t; 32 #define CAN_SFF_ID_BITS 11 33 #define CAN_EFF_ID_BITS 29 34 #define CANXL_PRIO_BITS CAN_SFF_ID_BITS 35 typedef __u32 can_err_mask_t; 36 #define CAN_MAX_DLC 8 37 #define CAN_MAX_RAW_DLC 15 38 #define CAN_MAX_DLEN 8 39 #define CANFD_MAX_DLC 15 40 #define CANFD_MAX_DLEN 64 41 #define CANXL_MIN_DLC 0 42 #define CANXL_MAX_DLC 2047 43 #define CANXL_MAX_DLC_MASK 0x07FF 44 #define CANXL_MIN_DLEN 1 45 #define CANXL_MAX_DLEN 2048 46 struct can_frame { 47 canid_t can_id; 48 union { 49 __u8 len; 50 __u8 can_dlc; 51 } __attribute__((packed)); 52 __u8 __pad; 53 __u8 __res0; 54 __u8 len8_dlc; 55 __u8 data[CAN_MAX_DLEN] __attribute__((aligned(8))); 56 }; 57 #define CANFD_BRS 0x01 58 #define CANFD_ESI 0x02 59 #define CANFD_FDF 0x04 60 struct canfd_frame { 61 canid_t can_id; 62 __u8 len; 63 __u8 flags; 64 __u8 __res0; 65 __u8 __res1; 66 __u8 data[CANFD_MAX_DLEN] __attribute__((aligned(8))); 67 }; 68 #define CANXL_XLF 0x80 69 #define CANXL_SEC 0x01 70 struct canxl_frame { 71 canid_t prio; 72 __u8 flags; 73 __u8 sdt; 74 __u16 len; 75 __u32 af; 76 __u8 data[CANXL_MAX_DLEN]; 77 }; 78 #define CAN_MTU (sizeof(struct can_frame)) 79 #define CANFD_MTU (sizeof(struct canfd_frame)) 80 #define CANXL_MTU (sizeof(struct canxl_frame)) 81 #define CANXL_HDR_SIZE (offsetof(struct canxl_frame, data)) 82 #define CANXL_MIN_MTU (CANXL_HDR_SIZE + 64) 83 #define CANXL_MAX_MTU CANXL_MTU 84 #define CAN_RAW 1 85 #define CAN_BCM 2 86 #define CAN_TP16 3 87 #define CAN_TP20 4 88 #define CAN_MCNET 5 89 #define CAN_ISOTP 6 90 #define CAN_J1939 7 91 #define CAN_NPROTO 8 92 #define SOL_CAN_BASE 100 93 struct sockaddr_can { 94 __kernel_sa_family_t can_family; 95 int can_ifindex; 96 union { 97 struct { 98 canid_t rx_id, tx_id; 99 } tp; 100 struct { 101 __u64 name; 102 __u32 pgn; 103 __u8 addr; 104 } j1939; 105 } can_addr; 106 }; 107 struct can_filter { 108 canid_t can_id; 109 canid_t can_mask; 110 }; 111 #define CAN_INV_FILTER 0x20000000U 112 #define CAN_RAW_FILTER_MAX 512 113 #endif 114