1 /* 2 $License: 3 Copyright 2011 InvenSense, Inc. 4 5 Licensed under the Apache License, Version 2.0 (the "License"); 6 you may not use this file except in compliance with the License. 7 You may obtain a copy of the License at 8 9 http://www.apache.org/licenses/LICENSE-2.0 10 11 Unless required by applicable law or agreed to in writing, software 12 distributed under the License is distributed on an "AS IS" BASIS, 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 See the License for the specific language governing permissions and 15 limitations under the License. 16 $ 17 */ 18 /******************************************************************************* 19 * 20 * $Id: i2c.h 5629 2011-06-11 03:13:08Z mcaramello $ 21 * 22 *******************************************************************************/ 23 24 #ifndef _I2C_H 25 #define _I2C_H 26 27 #include "mltypes.h" 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 /* ------------ */ 34 /* - Defines. - */ 35 /* ------------ */ 36 37 /* - Error Codes. - */ 38 39 #define I2C_SUCCESS 0 40 #define I2C_ERROR 1 41 42 /* ---------- */ 43 /* - Enums. - */ 44 /* ---------- */ 45 46 /* --------------- */ 47 /* - Structures. - */ 48 /* --------------- */ 49 50 #define I2C_RBUFF_MAX 128 51 #define I2C_RBUFF_SIZE 17 52 53 #ifdef BB_I2C 54 #define I2C_RBUFF_DYNAMIC 0 55 #else 56 #define I2C_RBUFF_DYNAMIC 1 57 #endif 58 59 typedef struct { 60 61 HANDLE i2cHndl; 62 HANDLE hDevice; // handle to the drive to be examined 63 64 MLU8 readBuffer[1024]; 65 MLU8 writeBuffer[1024]; 66 67 MLU16 rBuffRIndex; 68 MLU16 rBuffWIndex; 69 #if !I2C_RBUFF_DYNAMIC 70 MLU8 rBuff[I2C_RBUFF_MAX][I2C_RBUFF_SIZE]; 71 #else 72 MLU8 *rBuff; 73 #endif 74 MLU16 rBuffMax; 75 MLU16 rBuffNumBytes; 76 77 MLU8 runThread; 78 MLU8 autoProcess; 79 80 } I2C_Vars_t; 81 82 /* --------------------- */ 83 /* - Function p-types. - */ 84 /* --------------------- */ 85 86 #if (defined(BB_I2C)) 87 void set_i2c_open_bind_cb(int (*func)(unsigned int i2c_slave_addr)); 88 void set_i2c_open_cb(int (*func)(const char *dev, int rw)); 89 void set_i2c_close_cb(int (*func)(int fd)); 90 void set_i2c_lltransfer_cb(int (*func)(int fd, int client_addr, const char *write_buf, unsigned int write_len, 91 char *read_buf, unsigned int read_len )); 92 void set_i2c_write_register_cb(int (*func)(int fd, int client_addr, unsigned char reg, unsigned char value)); 93 void set_i2c_read_register_cb(unsigned char (*func)(int fd, int client_addr, unsigned char reg)); 94 void set_i2c_dump_register_cb(int (*func)(int fd, int client_addr, unsigned char start_reg, unsigned char *buff, int len)); 95 96 int _i2c_write_register(int fd, int client_addr, unsigned char reg, unsigned char value); 97 unsigned char _i2c_read_register (int fd, int client_addr, unsigned char reg); 98 int i2c_lltransfer (int fd, int client_addr, const char *write_buf, unsigned int write_len, 99 char *read_buf, unsigned int read_len ); 100 int i2c_write_register(int fd, int client_addr, unsigned char reg, unsigned char value); 101 unsigned char i2c_read_register (int fd, int client_addr, unsigned char reg); 102 int i2c_dump_register (int fd, int client_addr, unsigned char start_reg, unsigned char *buff, int len); 103 int i2c_open (const char *dev, int rw); 104 int i2c_close (int fd); 105 int i2c_open_bind (unsigned int i2c_slave_addr); 106 #endif 107 108 int I2COpen (unsigned char autoProcess, unsigned char createThread); 109 int I2CClose (void); 110 int I2CDeviceIoControl(void); 111 int I2CRead (void); 112 int I2CWrite (void); 113 int I2CSetBufferSize (unsigned short bufferSize); 114 int I2CBufferUpdate (void); 115 int I2CHandler (void); 116 int I2CReadBuffer (unsigned short cnt, unsigned char bufferMode, unsigned char *rBuff); 117 int I2CEmptyBuffer (void); 118 int I2CPktsInBuffer (unsigned short *pktsInBuffer); 119 int I2CCreateMutex (void); 120 int I2CLockMutex (void); 121 int I2CUnlockMutex (void); 122 123 int I2CWriteBurst (unsigned char slaveAddr, unsigned char registerAddr, unsigned short length, unsigned char *data); 124 int I2CReadBurst (unsigned char slaveAddr, unsigned char registerAddr, unsigned short length, unsigned char *data); 125 126 int I2COpenBB (void); 127 int I2CCloseBB (int i2cHandle); 128 129 #ifdef __cplusplus 130 } 131 #endif 132 133 #endif /* _TEMPLATE_H */ 134