1 /* 2 * Copyright (c) 2019 Alexander Wachter 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_SUBSYS_NET_L2_CANBUS_INTERNAL_H_ 8 #define ZEPHYR_SUBSYS_NET_L2_CANBUS_INTERNAL_H_ 9 10 11 #ifdef NET_CAN_USE_CAN_FD 12 #define NET_CAN_DL 64 13 #else 14 #define NET_CAN_DL 8 15 #endif/*NET_CAN_USE_CAN_FD*/ 16 17 /* Protocol control information*/ 18 #define NET_CAN_PCI_SF 0x00 /* Single frame*/ 19 #define NET_CAN_PCI_FF 0x01 /* First frame */ 20 #define NET_CAN_PCI_CF 0x02 /* Consecutive frame */ 21 #define NET_CAN_PCI_FC 0x03 /* Flow control frame */ 22 23 #define NET_CAN_PCI_TYPE_BYTE 0 24 #define NET_CAN_PCI_TYPE_POS 4 25 #define NET_CAN_PCI_TYPE_MASK 0xF0 26 #define NET_CAN_PCI_TYPE_SF (NET_CAN_PCI_SF << NET_CAN_PCI_TYPE_POS) 27 #define NET_CAN_PCI_TYPE_FF (NET_CAN_PCI_FF << NET_CAN_PCI_TYPE_POS) 28 #define NET_CAN_PCI_TYPE_CF (NET_CAN_PCI_CF << NET_CAN_PCI_TYPE_POS) 29 #define NET_CAN_PCI_TYPE_FC (NET_CAN_PCI_FC << NET_CAN_PCI_TYPE_POS) 30 31 #define NET_CAN_PCI_SF_DL_MASK 0x0F 32 33 #define NET_CAN_PCI_FF_DL_UPPER_BYTE 0 34 #define NET_CAN_PCI_FF_DL_UPPER_MASK 0x0F 35 #define NET_CAN_PCI_FF_DL_LOWER_BYTE 1 36 37 #define NET_CAN_PCI_FS_BYTE 0 38 #define NET_CAN_PCI_FS_MASK 0x0F 39 #define NET_CAN_PCI_BS_BYTE 1 40 #define NET_CAN_PCI_ST_MIN_BYTE 2 41 42 #define NET_CAN_PCI_FS_CTS 0x0 43 #define NET_CAN_PCI_FS_WAIT 0x1 44 #define NET_CAN_PCI_FS_OVFLW 0x2 45 46 #define NET_CAN_PCI_SN_MASK 0x0F 47 48 #define NET_CAN_FF_DL_MIN (NET_CAN_CAN_DL) 49 50 #define NET_CAN_WFT_FIRST 0xFF 51 52 #define NET_CAN_BS_TIME K_MSEC(1000) 53 #define NET_CAN_A_TIME K_MSEC(1000) 54 55 #define NET_CAN_FF_CF_TIME K_MSEC(1) 56 57 #define NET_CAN_STMIN_MAX 0xFA 58 #define NET_CAN_STMIN_MS_MAX 0x7F 59 #define NET_CAN_STMIN_US_BEGIN 0xF1 60 #define NET_CAN_STMIN_US_END 0xF9 61 62 #ifdef __cplusplus 63 extern "C" { 64 #endif 65 66 enum net_can_isotp_tx_state { 67 NET_CAN_TX_STATE_UNUSED, 68 NET_CAN_TX_STATE_RESET, 69 NET_CAN_TX_STATE_WAIT_FC, 70 NET_CAN_TX_STATE_SEND_CF, 71 NET_CAN_TX_STATE_WAIT_ST, 72 NET_CAN_TX_STATE_WAIT_TX_BACKLOG, 73 NET_CAN_TX_STATE_FIN, 74 NET_CAN_TX_STATE_ERR 75 }; 76 77 enum net_can_isotp_rx_state { 78 NET_CAN_RX_STATE_UNUSED, 79 NET_CAN_RX_STATE_RESET, 80 NET_CAN_RX_STATE_FF, 81 NET_CAN_RX_STATE_CF, 82 NET_CAN_RX_STATE_FIN, 83 NET_CAN_RX_STATE_TIMEOUT 84 }; 85 86 struct canbus_l2_ctx { 87 struct canbus_isotp_tx_ctx tx_ctx[CONFIG_NET_PKT_TX_COUNT]; 88 struct canbus_isotp_rx_ctx rx_ctx[CONFIG_NET_PKT_RX_COUNT]; 89 struct k_mutex tx_ctx_mtx; 90 struct k_mutex rx_ctx_mtx; 91 struct k_sem tx_sem; 92 }; 93 94 #ifdef __cplusplus 95 } 96 #endif 97 98 #endif /* ZEPHYR_SUBSYS_NET_L2_CANBUS_INTERNAL_H_ */ 99
