| 1 | /*-----------------------------------------------------------------------------
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| 2 | afil.h -- Acceptance filtering of CAN messages
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| 3 |
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| 4 | Copyright (c) 1994 JANZ Computer AG
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| 5 | All Rights Reserved
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| 6 |
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| 7 | Created 94/10/11 by Soenke Hansen
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| 8 | Version 1.7 of 99/12/07
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| 9 |
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| 10 | Based on their Id's received CAN messages are accepted or rejected.
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| 11 | CAN frames for which the filter is open will always be accepted.
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| 12 | A close request to the filter may not honored as it is possible
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| 13 | that the filter is not implemented.
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| 14 |
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| 15 | -----------------------------------------------------------------------------*/
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| 16 |
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| 17 | #ifndef afil_DEFINED
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| 18 | #define afil_DEFINED
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| 19 |
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| 20 | #ifdef __cplusplus
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| 21 | extern "C" {
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| 22 | #endif
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| 23 |
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| 24 | #include "defs.h"
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| 25 | #include "msg.h"
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| 26 | #include "icanconf.h"
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| 27 |
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| 28 |
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| 29 | /*-------- Acceptance Filtering of CAN Ids ---------------------------------*/
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| 30 |
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| 31 | #if ICAN_FILTER == 1
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| 32 |
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| 33 | /* */
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| 34 | extern BYTE_t id_filter[];
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| 35 |
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| 36 | /* Initialize the acceptance filter for CAN identifiers */
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| 37 | extern void init_afil(void);
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| 38 |
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| 39 | /* Return true if CAN message with given Id is accepted */
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| 40 | extern int accept_afil(WORD_t);
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| 41 |
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| 42 | /* Open the acceptance filter for a given id, so messages received
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| 43 | with this id will pass the acceptance test */
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| 44 | extern void open_afil(WORD_t);
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| 45 |
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| 46 | /* Close the acceptance filter for a given id, so messages received
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| 47 | with this id will not pass the acceptance test */
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| 48 | extern void close_afil(WORD_t);
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| 49 |
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| 50 | /* Open the acceptance filter for a given range of ids, so messages received
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| 51 | with ids in that range will pass the acceptance test */
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| 52 | extern void ropen_afil(WORD_t, WORD_t);
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| 53 |
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| 54 | /* Close the acceptance filter for a given range of ids, so messages received
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| 55 | with ids in that range will not pass the acceptance test */
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| 56 | extern void rclose_afil(WORD_t, WORD_t);
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| 57 |
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| 58 | /* Get the current state of the filter mask for a given id. */
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| 59 | extern int get_afil_mask(WORD_t);
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| 60 |
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| 61 | /* Set the filter mask for a given id. */
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| 62 | extern void set_afil_mask(WORD_t, WORD_t);
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| 63 |
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| 64 | /* Set the acceptance filter mask for a given range of ids.
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| 65 | You may set the mask to a value in the range 0..(2^BITS_PER_ID)-1. */
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| 66 | void rset_afil_mask(WORD_t, WORD_t, WORD_t);
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| 67 |
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| 68 | /* Open the sniff acceptance filter for a given range of ids, so messages received
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| 69 | with ids in that range will pass the acceptance test */
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| 70 | extern void ropen_sniff_fil(BYTE_t, WORD_t, WORD_t);
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| 71 |
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| 72 | /* Close the sniff acceptance filter for a given range of ids, so messages received
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| 73 | with ids in that range will not pass the acceptance test */
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| 74 | extern void rclose_sniff_fil(BYTE_t, WORD_t, WORD_t);
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| 75 |
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| 76 | #endif /* ICAN_FILTER == 1 */
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| 77 |
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| 78 | #if ICAN_FILTER == 0 /* filtering not implemented; dummies */
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| 79 | #define init_afil()
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| 80 | #define accept_afil(id) 1 /* accept everything */
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| 81 | #define open_afil(id)
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| 82 | #define close_afil(id)
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| 83 | #define ropen_afil(idl, idh)
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| 84 | #define rclose_afil(idl, idh)
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| 85 | #endif /* ICAN_FILTER == 0 */
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| 86 |
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| 87 |
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| 88 |
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| 89 | #define CAN_2_0_A 1
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| 90 | #define CAN_2_0_B 2
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| 91 |
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| 92 | extern void initSniffFil(void);
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| 93 | extern void rangeSetSniffFil(BYTE_t canSpec, WORD_t idl, WORD_t idh, BYTE_t value);
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| 94 | extern int getSniffFil(BYTE_t canSpec, LWORD_t id);
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| 95 |
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| 96 | #ifdef __cplusplus
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| 97 | }
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| 98 | #endif
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| 99 |
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| 100 | #endif /* !afil_DEFINED */
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