Sebastian Haas | e0ce8a7 | 2009-05-14 20:46:12 -0700 | [diff] [blame] | 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 | |
Alexander Beregalov | c32a4e0 | 2009-05-21 15:44:45 +0400 | [diff] [blame] | 18 | #define CPC_PROC_DIR "driver/" |
Sebastian Haas | e0ce8a7 | 2009-05-14 20:46:12 -0700 | [diff] [blame] | 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 |