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#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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#include "ppport.h" |
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#include "i2c-dev.h" |
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/* readI2CBlockData() must be defined in C to catch panic situations */ |
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int I2C__readI2CBlockData(int file, int command, SV* output){ |
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STRLEN len; |
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char *buf = SvPV(output, len); |
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int ret; |
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ret = i2c_smbus_read_i2c_block_data(file, command, len, buf); |
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if (ret == -1){ |
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croak("read_block() has invalid return. Is I2C device connected? Is the I2C bus speed set correctly?\n"); |
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} |
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sv_setpvn(output, buf, ret); |
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return ret; |
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} |
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MODULE = RPi::I2C PACKAGE = RPi::I2C PREFIX = I2C_ |
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PROTOTYPES: DISABLE |
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int I2C__readI2CBlockData(file, command, output) |
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int file |
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int command |
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SV* output |
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int I2C__checkDevice(file, value) |
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int file |
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int value |
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CODE: |
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RETVAL = i2c_smbus_check_device(file, value); |
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OUTPUT: |
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RETVAL |
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int I2C__readByte(file) |
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int file |
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CODE: |
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RETVAL = i2c_smbus_read_byte(file); |
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OUTPUT: |
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RETVAL |
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int I2C__writeByte(file, value) |
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int file |
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int value |
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CODE: |
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RETVAL = i2c_smbus_write_byte(file, value); |
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OUTPUT: |
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RETVAL |
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int I2C__readByteData(file,command) |
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int file |
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int command |
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CODE: |
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RETVAL = i2c_smbus_read_byte_data(file, command); |
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OUTPUT: |
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RETVAL |
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int I2C__writeByteData(file, command, value) |
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int file |
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int command |
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int value |
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CODE: |
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RETVAL = i2c_smbus_write_byte_data(file, command, value); |
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OUTPUT: |
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RETVAL |
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int I2C__readWordData(file, command) |
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int file |
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int command |
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CODE: |
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RETVAL = i2c_smbus_read_word_data(file, command); |
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OUTPUT: |
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RETVAL |
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int I2C__writeWordData(file, command, value) |
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int file |
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int command |
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int value |
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CODE: |
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RETVAL = i2c_smbus_write_word_data(file, command, value); |
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OUTPUT: |
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RETVAL |
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int I2C__processCall(file, command, value) |
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int file |
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int command |
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int value |
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CODE: |
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RETVAL = i2c_smbus_process_call(file, command, value); |
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OUTPUT: |
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RETVAL |
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int I2C__readBlockData(file, command, output) |
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int file |
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int command |
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SV * output |
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INIT: |
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char buf[ 32 ]; |
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int ret; |
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CODE: |
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ret = i2c_smbus_read_block_data(file, command, buf); |
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if (ret == -1) |
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RETVAL = ret; |
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sv_setpvn(output, buf, ret); |
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RETVAL = ret; |
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OUTPUT: |
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RETVAL |
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int I2C__writeBlockData(file,command,value) |
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int file |
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int command |
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SV * value |
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INIT: |
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STRLEN len; |
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char *buf = SvPV(value, len); |
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CODE: |
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RETVAL = i2c_smbus_write_block_data(file, command, len, buf); |
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OUTPUT: |
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RETVAL |
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int I2C__blockProcessCall(file, command, value) |
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int file |
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int command |
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SV * value |
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INIT: |
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STRLEN len; |
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char *buf = SvPV(value, len); |
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CODE: |
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RETVAL = i2c_smbus_block_process_call(file, command, len, buf); |
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OUTPUT: |
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RETVAL |
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int I2C__writeI2CBlockData(file, command, value) |
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int file |
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int command |
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SV * value |
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INIT: |
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STRLEN len; |
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char *buf = SvPV(value, len); |
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CODE: |
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RETVAL = i2c_smbus_write_i2c_block_data(file, command, len, buf); |
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OUTPUT: |
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RETVAL |