include/sja1000.h

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