drivers/staging/cpc-usb/sja2m16c.h

   1 #ifndef _SJA2M16C_H
   2 #define _SJA2M16C_H
   3
   4 #include "cpc.h"
   5
   6 #define BAUDRATE_TOLERANCE_PERCENT      1
   7 #define SAMPLEPOINT_TOLERANCE_PERCENT   5
   8 #define SAMPLEPOINT_UPPER_LIMIT         88
   9
  10 /* M16C parameters */
  11 struct FIELD_C0CONR {
  12         unsigned int brp:4;
  13         unsigned int sam:1;
  14         unsigned int pr:3;
  15         unsigned int dummy:8;
  16 };
  17 struct FIELD_C1CONR {
  18         unsigned int ph1:3;
  19         unsigned int ph2:3;
  20         unsigned int sjw:2;
  21         unsigned int dummy:8;
  22 };
  23 typedef union C0CONR {
  24         unsigned char c0con;
  25         struct FIELD_C0CONR bc0con;
  26 } C0CONR_T;
  27 typedef union C1CONR {
  28         unsigned char c1con;
  29         struct FIELD_C1CONR bc1con;
  30 } C1CONR_T;
  31
  32 #define SJA_TSEG1       ((pParams->btr1 & 0x0f)+1)
  33 #define SJA_TSEG2       (((pParams->btr1 & 0x70)>>4)+1)
  34 #define SJA_BRP         ((pParams->btr0 & 0x3f)+1)
  35 #define SJA_SJW         ((pParams->btr0 & 0xc0)>>6)
  36 #define SJA_SAM         ((pParams->btr1 & 0x80)>>7)
  37 int baudrate_m16c(int clk, int brp, int pr, int ph1, int ph2);
  38 int samplepoint_m16c(int brp, int pr, int ph1, int ph2);
  39 int SJA1000_TO_M16C_BASIC_Params(CPC_MSG_T *pMsg);
  40
  41 #endif