Diff: RCS730.cpp

Revision:

0:be4ff952ae7a

Child:

1:bb5616cb01fb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RCS730.cpp	Sun Mar 29 06:11:57 2015 +0000
@@ -0,0 +1,303 @@
+#include "RCS730.h"
+
+
+namespace {
+    const int I2C_SLV_ADDR = 0x80;      //Default Slave Address(8bit)
+    const int RETRY_NUM = 5;            //max I2C Retry count
+
+
+    inline int set_tag_rf_send_enable(RCS730 *pRcs)
+    {
+        uint32_t val = 0x00000001;
+        return pRcs->pageWrite(RCS730::REG_TAG_TX_CTRL, reinterpret_cast<const uint8_t*>(&val), sizeof(val));
+    }
+
+    int read_rf_buf(RCS730 *pRcs, uint8_t *pData)
+    {
+        const int LEN_FIRST = 16;
+        int len = 0;
+        int ret;
+
+        //read from LEN
+        ret = pRcs->sequentialRead(RCS730::BUF_RF_COMM, pData, LEN_FIRST);
+        if (ret == 0) {
+            len = pData[0];
+        }
+        if ((ret == 0) && (pData[0] > LEN_FIRST)) {
+            ret = pRcs->sequentialRead(RCS730::BUF_RF_COMM + LEN_FIRST, pData + LEN_FIRST, pData[0] - LEN_FIRST);
+            if (ret != 0) {
+                len = 0;
+            }
+        }
+
+        return len;
+    }
+}
+
+
+RCS730::RCS730(I2C &I2c)
+    : _i2c(I2c), _slvAddr(I2C_SLV_ADDR)
+{
+    _cbTable.pUserData = 0;
+    _cbTable.pCbRxHTRDone = 0;
+    _cbTable.pCbRxHTWDone = 0;
+}
+
+RCS730::~RCS730()
+{
+}
+
+
+void RCS730::setCallbackTable(const callbacktable_t *pInitTable)
+{
+    _cbTable = *pInitTable;
+}
+
+
+int RCS730::byteWrite(uint16_t MemAddr, uint8_t Data)
+{
+    int ret;
+    int retry = RETRY_NUM;
+    char buf[3];
+
+    buf[0] = (char)(MemAddr >> 8);
+    buf[1] = (char)(MemAddr & 0xff);
+    buf[2] = (char)Data;
+
+    do {
+        ret = _i2c.write(_slvAddr, buf, (int)sizeof(buf));
+    } while ((ret != 0) && (retry--));
+
+    return ret;
+}
+
+
+int RCS730::pageWrite(uint16_t MemAddr, const uint8_t *pData, int Length)
+{
+    int ret;
+    int retry = RETRY_NUM;
+    char buf[2];
+
+    buf[0] = (char)(MemAddr >> 8);
+    buf[1] = (char)(MemAddr & 0xff);
+
+    do {
+        ret = _i2c.write(_slvAddr, buf, (int)sizeof(buf), true);
+    } while ((ret != 0) && (retry--));
+    if (ret == 0) {
+        for (int i = 0; i < Length; i++) {
+            ret = !_i2c.write(pData[i]);        //I2C::write(b) return 1 if success.
+            if (ret != 0) {
+                break;
+            }
+        }
+    }
+    _i2c.stop();
+
+    return ret;
+}
+
+
+int RCS730::randomRead(uint16_t MemAddr, uint8_t *pData)
+{
+    return sequentialRead(MemAddr, pData, 1);
+}
+
+
+int RCS730::sequentialRead(uint16_t MemAddr, uint8_t *pData, int Length)
+{
+    int ret;
+    int retry = RETRY_NUM;
+    char buf[2];
+
+    buf[0] = (char)(MemAddr >> 8);
+    buf[1] = (char)(MemAddr & 0xff);
+
+    do {
+        ret = _i2c.write(_slvAddr, buf, (int)sizeof(buf), true);
+    } while ((ret != 0) && (retry--));
+    if (ret == 0) {
+        ret = _i2c.read(_slvAddr | 1, reinterpret_cast<char*>(pData), Length);
+    }
+
+    return ret;
+}
+
+
+int RCS730::currentAddrRead(uint8_t *pData)
+{
+    int ret;
+    int retry = RETRY_NUM;
+
+    do {
+        ret = _i2c.read((int)(_slvAddr | 1), reinterpret_cast<char*>(pData), 1);
+    } while ((ret != 0) && (retry--));
+
+    return ret;
+}
+
+
+inline int RCS730::readRegister(uint16_t Reg, uint32_t* pData)
+{
+    return sequentialRead(Reg, reinterpret_cast<uint8_t*>(pData), sizeof(uint32_t));
+}
+
+
+inline int RCS730::writeRegisterForce(uint16_t Reg, uint32_t Data)
+{
+    return pageWrite(Reg, reinterpret_cast<const uint8_t*>(&Data), sizeof(Data));
+}
+
+
+int RCS730::writeRegister(uint16_t Reg, uint32_t Data, uint32_t Mask/*=0xffffffff*/)
+{
+    int ret;
+    uint32_t cur;   //current register value
+
+    ret = readRegister(Reg, &cur);
+    if (ret == 0) {
+        if ((cur & Mask) != Data) {
+            // change value
+            Data |= cur & ~Mask;
+            ret = writeRegisterForce(Reg, Data);
+        }
+    }
+
+    return ret;
+}
+
+
+int RCS730::setRegOpMode(OpMode Mode)
+{
+    return writeRegister(REG_OPMODE, static_cast<uint32_t>(Mode));
+}
+
+
+int RCS730::setRegSlaveAddr(int SAddr)
+{
+    int ret;
+
+    ret = writeRegister(REG_I2C_SLAVE_ADDR, static_cast<uint32_t>(SAddr));
+
+    if (ret == 0) {
+        _slvAddr = SAddr << 1;
+    }
+
+    return ret;
+}
+
+
+int RCS730::setRegInterruptMask(uint32_t Mask, uint32_t Value)
+{
+    return writeRegister(REG_INT_MASK, Value, Mask);
+}
+
+
+int RCS730::setRegPlugSysCode(PlugSysCode SysCode)
+{
+    return writeRegister(REG_PLUG_CONF1, static_cast<uint32_t>(SysCode), 0x00000002);
+}
+
+
+int RCS730::goToInitializeStatus()
+{
+    return writeRegisterForce(REG_INIT_CTRL, 0x0000004a);
+}
+
+
+int RCS730::initFTMode(OpMode Mode)
+{
+    int ret;
+
+    if (OPMODE_PLUG < Mode) {
+        return -1;
+    }
+
+    ret = setRegOpMode(Mode);
+    if (ret == 0) {
+        //ret = setRegInterruptMask(MSK_INT_TAG_TX_DONE | MSK_INT_TAG_RW_RX_DONE2, 0);
+        ret = setRegInterruptMask(MSK_INT_TAG_RW_RX_DONE2, 0);
+    }
+
+    return ret;
+}
+
+
+#if 0
+int RCS730::initNfcDepMode()
+{
+    int ret;
+
+    ret = setRegOpMode(OPMODE_NFCDEP);
+    if (ret == 0) {
+        ret = setRegInterruptMask(MSK_INT_TAG_TX_DONE | MSK_INT_TAG_NFC_DEP_RX_DONE, 0);
+    }
+
+    return ret;
+}
+#endif
+
+
+void RCS730::isrIrq()
+{
+    int ret;
+    bool b_send = false;
+    uint32_t intstat;
+    uint8_t rf_buf[256];
+
+    ret = readRegister(REG_INT_STATUS, &intstat);
+    if (ret == 0) {
+
+        if (intstat & MSK_INT_TAG_RW_RX_DONE2) {
+            //Read or Write w/o Enc Rx done for HT block
+            int len = read_rf_buf(this, rf_buf);
+            if (len > 0) {
+                switch (rf_buf[1]) {
+                    case 0x06:  //Read w/o Enc
+                        if (_cbTable.pCbRxHTRDone) {
+                            b_send = (*_cbTable.pCbRxHTRDone)(_cbTable.pUserData, rf_buf, len);
+                        }
+                        break;
+                    case 0x08:  //Write w/o Enc;
+                        if (_cbTable.pCbRxHTWDone) {
+                            b_send = (*_cbTable.pCbRxHTWDone)(_cbTable.pUserData, rf_buf, len);
+                        }
+                        break;
+                    default:
+                        break;
+                }
+            }
+        }
+#if 0
+        if (_cbTable.pCbRxDepDone && (intstat & MSK_INT_TAG_NFC_DEP_RX_DONE)) {
+            //DEP command Rx done
+            int len = read_rf_buf(this, rf_buf);
+            (*_cbTable.pCbRxDepDone)(_cbTable.pUserData, rf_buf, len);
+        }
+        if (_cbTable.pCbTxDone && (intstat & MSK_INT_TAG_TX_DONE)) {
+            //Tx Done
+            int len = read_rf_buf(this, rf_buf);
+            (*_cbTable.pCbTxDone)(_cbTable.pUserData, rf_buf, len);
+        }
+
+        uint32_t intother = intstat & ~(MSK_INT_TAG_TX_DONE | MSK_INT_TAG_NFC_DEP_RX_DONE | MSK_INT_TAG_RW_RX_DONE2);
+        if (_cbTable.pCbOther && intother) {
+            (*_cbTable.mCbOther)(_cbTable.pUserData, 0, intother);
+        }
+#endif
+
+        //response
+        if (b_send) {
+            ret = pageWrite(BUF_RF_COMM, rf_buf, rf_buf[0]);
+            if (ret == 0) {
+                set_tag_rf_send_enable(this);
+            }
+        }
+
+        writeRegisterForce(REG_INT_CLEAR, intstat);
+    }
+}
+
+
+
+