projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e0ce8a72 SH |
1 | /* |
| 2 | * CPCLIB | |
| 3 | * | |
| 4 | * Copyright (C) 2000-2008 EMS Dr. Thomas Wuensche | |
| 5 | * | |
| 6 | * This program is distributed in the hope that it will be useful, but | |
| 7 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| 9 | * | |
| 10 | */ | |
| 11 | #ifndef CPC_INT_H | |
| 12 | #define CPC_INT_H | |
| 13 | ||
| 14 | #include <linux/wait.h> | |
| 15 | ||
| 16 | #define CPC_MSG_BUF_CNT 1500 | |
| 17 | ||
| c32a4e06 | 18 | #define CPC_PROC_DIR "driver/" |
| e0ce8a72 SH |
19 | |
| 20 | #undef dbg | |
| 21 | #undef err | |
| 22 | #undef info | |
| 23 | ||
| 24 | /* Use our own dbg macro */ | |
| 25 | #define dbg(format, arg...) do { if (debug) printk( KERN_INFO format "\n" , ## arg); } while (0) | |
| 26 | #define err(format, arg...) do { printk( KERN_INFO "ERROR " format "\n" , ## arg); } while (0) | |
| 27 | #define info(format, arg...) do { printk( KERN_INFO format "\n" , ## arg); } while (0) | |
| 28 | ||
| 29 | /* Macros help using of our buffers */ | |
| 30 | #define IsBufferFull(x) (!(x)->WnR) && ((x)->iidx == (x)->oidx) | |
| 31 | #define IsBufferEmpty(x) ((x)->WnR) && ((x)->iidx == (x)->oidx) | |
| 32 | #define IsBufferNotEmpty(x) (!(x)->WnR) || ((x)->iidx != (x)->oidx) | |
| 33 | #define ResetBuffer(x) do { (x)->oidx = (x)->iidx=0; (x)->WnR = 1; } while(0); | |
| 34 | ||
| 35 | #define CPC_BufWriteAllowed ((chan->oidx != chan->iidx) || chan->WnR) | |
| 36 | ||
| 37 | typedef void (*chan_write_byte_t) (void *chan, unsigned int reg, | |
| 38 | unsigned char val); | |
| 39 | typedef unsigned char (*chan_read_byte_t) (void *chan, unsigned int reg); | |
| 40 | ||
| 41 | typedef struct CPC_CHAN { | |
| 42 | void __iomem * canBase; // base address of SJA1000 | |
| 43 | chan_read_byte_t read_byte; // CAN controller read access routine | |
| 44 | chan_write_byte_t write_byte; // CAN controller write access routine | |
| 45 | CPC_MSG_T *buf; // buffer for CPC msg | |
| 46 | unsigned int iidx; | |
| 47 | unsigned int oidx; | |
| 48 | unsigned int WnR; | |
| 49 | unsigned int minor; | |
| 50 | unsigned int locked; | |
| 51 | unsigned int irqDisabled; | |
| 52 | ||
| 53 | unsigned char cpcCtrlCANMessage; | |
| 54 | unsigned char cpcCtrlCANState; | |
| 55 | unsigned char cpcCtrlBUSState; | |
| 56 | ||
| 57 | unsigned char controllerType; | |
| 58 | ||
| 59 | unsigned long ovrTimeSec; | |
| 60 | unsigned long ovrTimeNSec; | |
| 61 | unsigned long ovrLockedBuffer; | |
| 62 | CPC_OVERRUN_T ovr; | |
| 63 | ||
| 64 | /* for debugging only */ | |
| 65 | unsigned int handledIrqs; | |
| 66 | unsigned int lostMessages; | |
| 67 | ||
| 68 | unsigned int sentStdCan; | |
| 69 | unsigned int sentExtCan; | |
| 70 | unsigned int sentStdRtr; | |
| 71 | unsigned int sentExtRtr; | |
| 72 | ||
| 73 | unsigned int recvStdCan; | |
| 74 | unsigned int recvExtCan; | |
| 75 | unsigned int recvStdRtr; | |
| 76 | unsigned int recvExtRtr; | |
| 77 | ||
| 78 | wait_queue_head_t *CPCWait_q; | |
| 79 | ||
| 80 | void *private; | |
| 81 | } CPC_CHAN_T; | |
| 82 | ||
| 83 | #endif |