I2C_RPC.cpp

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00033 #include <stdint.h>
00034 #include "StringHelper.h"
00035 #include "I2C_RPC.h"
00036 #include "Peripherals.h"
00037 
00038 //******************************************************************************
00039 // input
00040 // [instance] [slaveAddress] [writeNumber] [](data to write) [readNumber]
00041 // output data to read
00042 int I2C_WriteRead(char argStrs[32][32], char replyStrs[32][32]) {
00043   uint8_t args[16];
00044   uint8_t reply[16];
00045   uint8_t writeNumber;
00046   uint8_t readNumber;
00047   uint8_t instance;
00048   uint8_t slaveAddress;
00049   int ret1;
00050   int ret2;
00051   I2C *i2c;
00052   // get the number of bytes to write
00053   ProcessArgs(argStrs, args, 3); // parse [instance] [slaveAddress] [writeNumber]
00054   instance = args[0];
00055   slaveAddress = args[1];
00056   writeNumber = args[2];
00057   // parse [instance] [slaveAddress] [writeNumber] [](data to write)
00058   // [readNumber]
00059   ProcessArgs(argStrs, args, writeNumber + 4);
00060   readNumber = args[writeNumber + 3];
00061 
00062   i2c = Peripherals::i2c1();
00063   if (instance == 2) {
00064     i2c = Peripherals::i2c2();
00065   }
00066   ret1 = 0;
00067   ret2 = 0;
00068 
00069   if (writeNumber != 0) {
00070     ret1 = i2c->write((int)slaveAddress, (char *)&args[3], (int)writeNumber);
00071   }
00072   if (readNumber != 0) {
00073     ret2 = i2c->read((int)slaveAddress, (char *)reply, (int)readNumber);
00074   }
00075 
00076     if (ret1 != 0) reply[0] = 0xFF;
00077     if (ret2 != 0) reply[0] = 0xFF;
00078 
00079 
00080   // reply[0] = 0x80;
00081   FormatReply(reply, readNumber, replyStrs);
00082   return 0;
00083 }