82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
#ifndef I2C_H
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#define I2C_H
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#include <switch.h>
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Result I2cReadRegHandler16(u8 reg, I2cDevice dev, u16 *out)
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{
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struct readReg {
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u8 send;
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u8 sendLength;
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u8 sendData;
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u8 receive;
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u8 receiveLength;
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};
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I2cSession _session;
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Result res = i2cOpenSession(&_session, dev);
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if (res)
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return res;
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u16 val;
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struct readReg readRegister = {
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.send = 0 | (I2cTransactionOption_Start << 6),
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.sendLength = sizeof(reg),
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.sendData = reg,
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.receive = 1 | (I2cTransactionOption_All << 6),
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.receiveLength = sizeof(val),
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};
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res = i2csessionExecuteCommandList(&_session, &val, sizeof(val), &readRegister, sizeof(readRegister));
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if (res)
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{
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i2csessionClose(&_session);
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return res;
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}
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*out = val;
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i2csessionClose(&_session);
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return 0;
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}
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Result I2cReadRegHandler8(u8 reg, I2cDevice dev, u8 *out)
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{
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struct readReg {
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u8 send;
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u8 sendLength;
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u8 sendData;
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u8 receive;
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u8 receiveLength;
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};
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I2cSession _session;
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Result res = i2cOpenSession(&_session, dev);
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if (res)
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return res;
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u8 val;
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struct readReg readRegister = {
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.send = 0 | (I2cTransactionOption_Start << 6),
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.sendLength = sizeof(reg),
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.sendData = reg,
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.receive = 1 | (I2cTransactionOption_All << 6),
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.receiveLength = sizeof(val),
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};
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res = i2csessionExecuteCommandList(&_session, &val, sizeof(val), &readRegister, sizeof(readRegister));
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if (res)
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{
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i2csessionClose(&_session);
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return res;
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}
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*out = val;
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i2csessionClose(&_session);
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return 0;
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}
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#endif |