include/sja1000.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright 2009, Matthias Fuchs <matthias.fuchs@esd.eu>
   4  *
   5  * SJA1000 register layout for basic CAN mode
   6  */
   7
   8 #ifndef _SJA1000_H_
   9 #define _SJA1000_H_
  10
  11 /*
  12  * SJA1000 register layout in basic can mode
  13  */
  14 struct sja1000_basic_s {
  15         u8 cr;
  16         u8 cmr;
  17         u8 sr;
  18         u8 ir;
  19         u8 ac;
  20         u8 am;
  21         u8 btr0;
  22         u8 btr1;
  23         u8 oc;
  24         u8 txb[10];
  25         u8 rxb[10];
  26         u8 unused;
  27         u8 cdr;
  28 };
  29
  30 /* control register */
  31 #define CR_RR           0x01
  32
  33 /* output control register */
  34 #define OC_MODE0        0x01
  35 #define OC_MODE1        0x02
  36 #define OC_POL0         0x04
  37 #define OC_TN0          0x08
  38 #define OC_TP0          0x10
  39 #define OC_POL1         0x20
  40 #define OC_TN1          0x40
  41 #define OC_TP1          0x80
  42
  43 #endif