can_link.h revision 1.2.10.2
1 1.2.10.2 jdolecek /* $NetBSD: can_link.h,v 1.2.10.2 2017/12/03 11:39:03 jdolecek Exp $ */ 2 1.2.10.2 jdolecek 3 1.2.10.2 jdolecek /*- 4 1.2.10.2 jdolecek * Copyright (c) 2017 The NetBSD Foundation, Inc. 5 1.2.10.2 jdolecek * All rights reserved. 6 1.2.10.2 jdolecek * 7 1.2.10.2 jdolecek * This code is derived from software contributed to The NetBSD Foundation 8 1.2.10.2 jdolecek * by Manuel Bouyer 9 1.2.10.2 jdolecek * 10 1.2.10.2 jdolecek * Redistribution and use in source and binary forms, with or without 11 1.2.10.2 jdolecek * modification, are permitted provided that the following conditions 12 1.2.10.2 jdolecek * are met: 13 1.2.10.2 jdolecek * 1. Redistributions of source code must retain the above copyright 14 1.2.10.2 jdolecek * notice, this list of conditions and the following disclaimer. 15 1.2.10.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.10.2 jdolecek * notice, this list of conditions and the following disclaimer in the 17 1.2.10.2 jdolecek * documentation and/or other materials provided with the distribution. 18 1.2.10.2 jdolecek * 19 1.2.10.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.10.2 jdolecek * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.10.2 jdolecek * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.10.2 jdolecek * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.10.2 jdolecek * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.10.2 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.10.2 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.10.2 jdolecek * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.10.2 jdolecek * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.10.2 jdolecek * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.10.2 jdolecek * POSSIBILITY OF SUCH DAMAGE. 30 1.2.10.2 jdolecek */ 31 1.2.10.2 jdolecek 32 1.2.10.2 jdolecek #ifndef _NETCAN_CAN_LINK_H 33 1.2.10.2 jdolecek #define _NETCAN_CAN_LINK_H 34 1.2.10.2 jdolecek 35 1.2.10.2 jdolecek /* 36 1.2.10.2 jdolecek * CAN bus link-layer related commands, from the SIOCSDRVSPEC 37 1.2.10.2 jdolecek */ 38 1.2.10.2 jdolecek 39 1.2.10.2 jdolecek /* get timing capabilities from HW */ 40 1.2.10.2 jdolecek struct can_link_timecaps { 41 1.2.10.2 jdolecek uint32_t cltc_prop_min; /* prop seg, in tq */ 42 1.2.10.2 jdolecek uint32_t cltc_prop_max; 43 1.2.10.2 jdolecek uint32_t cltc_ps1_min; /* phase1 seg, in tq */ 44 1.2.10.2 jdolecek uint32_t cltc_ps1_max; 45 1.2.10.2 jdolecek uint32_t cltc_ps2_min; /* phase 2 seg, in tq */ 46 1.2.10.2 jdolecek uint32_t cltc_ps2_max; 47 1.2.10.2 jdolecek uint32_t cltc_sjw_max; /* Synchronisation Jump Width */ 48 1.2.10.2 jdolecek uint32_t cltc_brp_min; /* bit-rate prescaler */ 49 1.2.10.2 jdolecek uint32_t cltc_brp_max; 50 1.2.10.2 jdolecek uint32_t cltc_brp_inc; 51 1.2.10.2 jdolecek uint32_t cltc_clock_freq; /* prescaler input clock, in hz */ 52 1.2.10.2 jdolecek uint32_t cltc_linkmode_caps; /* link mode, see below */ 53 1.2.10.2 jdolecek }; 54 1.2.10.2 jdolecek #define CANGLINKTIMECAP 0 /* get struct can_link_timecaps */ 55 1.2.10.2 jdolecek 56 1.2.10.2 jdolecek /* get/set timing parameters */ 57 1.2.10.2 jdolecek struct can_link_timings { 58 1.2.10.2 jdolecek uint32_t clt_brp; /* prescaler value */ 59 1.2.10.2 jdolecek uint32_t clt_prop; /* Propagation segment in tq */ 60 1.2.10.2 jdolecek uint32_t clt_ps1; /* Phase segment 1 in tq */ 61 1.2.10.2 jdolecek uint32_t clt_ps2; /* Phase segment 2 in tq */ 62 1.2.10.2 jdolecek uint32_t clt_sjw; /* Synchronisation jump width in tq */ 63 1.2.10.2 jdolecek }; 64 1.2.10.2 jdolecek #define CANGLINKTIMINGS 1 /* get struct can_link_timings */ 65 1.2.10.2 jdolecek #define CANSLINKTIMINGS 2 /* set struct can_link_timings */ 66 1.2.10.2 jdolecek 67 1.2.10.2 jdolecek /* link-level modes */ 68 1.2.10.2 jdolecek #define CAN_LINKMODE_LOOPBACK 0x01 /* Loopback mode */ 69 1.2.10.2 jdolecek #define CAN_LINKMODE_LISTENONLY 0x02 /* Listen-only mode */ 70 1.2.10.2 jdolecek #define CAN_LINKMODE_3SAMPLES 0x04 /* Triple sampling mode */ 71 1.2.10.2 jdolecek #define CAN_LINKMODE_PRESUME_ACK 0x08 /* Ignore missing CAN ACKs */ 72 1.2.10.2 jdolecek #define CAN_IFFBITS \ 73 1.2.10.2 jdolecek "\020\1LOOPBACK\2LISTENONLY\3TRIPLESAMPLE\4PRESUMEACK" 74 1.2.10.2 jdolecek 75 1.2.10.2 jdolecek #define CANGLINKMODE 3 /* (uint32_t) get bits */ 76 1.2.10.2 jdolecek #define CANSLINKMODE 4 /* (uint32_t) set bits */ 77 1.2.10.2 jdolecek #define CANCLINKMODE 5 /* (uint32_t) clear bits */ 78 1.2.10.2 jdolecek 79 1.2.10.2 jdolecek #endif /* _NETCAN_CAN_LINK_H */ 80 1.2.10.2 jdolecek 81
Indexes created Tue Oct 21 12:09:54 GMT 2025