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/*
* CPCLIB
*
* Copyright (C) 2000-2008 EMS Dr. Thomas Wuensche
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#ifndef CPC_INT_H
#define CPC_INT_H
#include <linux/wait.h>
#define CPC_MSG_BUF_CNT 1500
#define CPC_PROC_DIR "driver/"
#undef dbg
#undef err
#undef info
/* Use our own dbg macro */
#define dbg(format, arg...) do { if (debug) printk( KERN_INFO format "\n" , ## arg); } while (0)
#define err(format, arg...) do { printk( KERN_INFO "ERROR " format "\n" , ## arg); } while (0)
#define info(format, arg...) do { printk( KERN_INFO format "\n" , ## arg); } while (0)
/* Macros help using of our buffers */
#define IsBufferFull(x) (!(x)->WnR) && ((x)->iidx == (x)->oidx)
#define IsBufferEmpty(x) ((x)->WnR) && ((x)->iidx == (x)->oidx)
#define IsBufferNotEmpty(x) (!(x)->WnR) || ((x)->iidx != (x)->oidx)
#define ResetBuffer(x) do { (x)->oidx = (x)->iidx=0; (x)->WnR = 1; } while(0);
#define CPC_BufWriteAllowed ((chan->oidx != chan->iidx) || chan->WnR)
typedef void (*chan_write_byte_t) (void *chan, unsigned int reg,
unsigned char val);
typedef unsigned char (*chan_read_byte_t) (void *chan, unsigned int reg);
typedef struct CPC_CHAN {
void __iomem * canBase; // base address of SJA1000
chan_read_byte_t read_byte; // CAN controller read access routine
chan_write_byte_t write_byte; // CAN controller write access routine
CPC_MSG_T *buf; // buffer for CPC msg
unsigned int iidx;
unsigned int oidx;
unsigned int WnR;
unsigned int minor;
unsigned int locked;
unsigned int irqDisabled;
unsigned char cpcCtrlCANMessage;
unsigned char cpcCtrlCANState;
unsigned char cpcCtrlBUSState;
unsigned char controllerType;
unsigned long ovrTimeSec;
unsigned long ovrTimeNSec;
unsigned long ovrLockedBuffer;
CPC_OVERRUN_T ovr;
/* for debugging only */
unsigned int handledIrqs;
unsigned int lostMessages;
unsigned int sentStdCan;
unsigned int sentExtCan;
unsigned int sentStdRtr;
unsigned int sentExtRtr;
unsigned int recvStdCan;
unsigned int recvExtCan;
unsigned int recvStdRtr;
unsigned int recvExtRtr;
wait_queue_head_t *CPCWait_q;
void *private;
} CPC_CHAN_T;
#endif
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