Diff: XadowNFC.cpp

Revision:

0:9d116099a88d

Child:

1:27242e2abd99

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/XadowNFC.cpp	Wed Nov 04 09:59:37 2015 +0000
@@ -0,0 +1,142 @@
+
+#include <stdlib.h>
+#include "mbed.h"
+#include "XadowNFC.h"
+#include "USBSerial.h"
+
+
+unsigned char uid[10] = {0};
+static char cmd[2];
+
+extern I2C i2c;
+extern USBSerial dbg_serial;
+
+unsigned char nfc_check_online(void)
+{
+    unsigned char data[6];
+    unsigned char i;
+
+    //dlc_i2c_configure(NFC_DEVICE_ADDR, 100);
+    //dlc_i2c_send_byte(NFC_SCAN_ID);
+    //dlc_i2c_send_byte(0);
+    
+    cmd[0] = NFC_SCAN_ID;
+    cmd[1] = 0;
+    i2c.write(NFC_DEVICE_ADDR, cmd, 1);  //the nfc module's i2c supports only 1 byte read/write per burst
+    i2c.write(NFC_DEVICE_ADDR, cmd+1, 1);
+
+
+    for(i=0;i<6;i++)
+    {
+        //data[i] = dlc_i2c_receive_byte();
+        i2c.read(NFC_DEVICE_ADDR, (char *)&data[i], 1);  //the nfc module's i2c supports only 1 byte read/write per burst
+    }
+
+    if(data[5] == (NFC_DEVICE_ADDR>>1))return 1;
+    else return 0;
+}
+
+void nfc_adapter_init(void)
+{
+    cmd[0] = NFC_ADAPTER_INIT_ID;
+    cmd[1] = 0;
+    i2c.write(NFC_DEVICE_ADDR, cmd, 1);
+    i2c.write(NFC_DEVICE_ADDR, cmd+1, 1);
+}
+
+unsigned char *nfc_adapter_get_uid(void)
+{
+    unsigned char i;
+
+    cmd[0] = NFC_ADAPTER_GET_UID_ID;
+    cmd[1] = 0;
+    i2c.write(NFC_DEVICE_ADDR, cmd, 1);
+    i2c.write(NFC_DEVICE_ADDR, cmd+1, 1);
+
+
+    for(i=0;i<2;i++)
+    {
+        //uid[i] = dlc_i2c_receive_byte();
+        i2c.read(NFC_DEVICE_ADDR, (char *)&uid[i], 1);
+    }
+
+    for(i=0;i<uid[1];i++)
+    {
+        //uid[i + 2]= dlc_i2c_receive_byte();
+        i2c.read(NFC_DEVICE_ADDR, (char *)&uid[i+2], 1);
+    }
+    uid[uid[1] + 2] = '\0';
+
+    return (unsigned char *)uid;
+}
+
+unsigned char *nfc_adapter_read(void)
+{
+    unsigned char data[2];
+    unsigned char i;
+
+    cmd[0] = NFC_ADAPTER_READ_ID;
+    cmd[1] = 0;
+    i2c.write(NFC_DEVICE_ADDR, cmd, 1);
+    i2c.write(NFC_DEVICE_ADDR, cmd+1, 1);
+
+    for(i=0;i<2;i++)
+    {
+        //data[i] = dlc_i2c_receive_byte();
+        i2c.read(NFC_DEVICE_ADDR, (char *)&data[i], 1);
+    }
+
+    unsigned char length = data[1];
+    unsigned char *ptr = (unsigned char *)malloc(length + 2 + 1);
+    *ptr = data[0];
+    *(ptr + 1) = data[1];
+    *(ptr + length + 2) = '\0';
+
+    for(i=0;i<*(ptr + 1);i++)
+    {
+        //*(ptr + i + 2) = dlc_i2c_receive_byte();
+        i2c.read(NFC_DEVICE_ADDR, (char *)(ptr + i + 2), 1);
+    }
+    
+    return ptr;
+}
+
+void nfc_adapter_write(unsigned char *data, unsigned char length)
+{
+    unsigned char i;
+
+    cmd[0] = NFC_ADAPTER_WRITE_ID;
+    cmd[1] = length;
+    i2c.write(NFC_DEVICE_ADDR, cmd, 1);
+    i2c.write(NFC_DEVICE_ADDR, cmd+1, 1);
+
+    for(i=0;i<length;i++)
+    {
+        //dlc_i2c_send_byte(*(string + i));
+        i2c.write(NFC_DEVICE_ADDR, (char *)(data + i), 1);
+    }
+}
+
+void nfc_adapter_erase(void)
+{    
+    cmd[0] = NFC_ADAPTER_ERASE_ID;
+    cmd[1] = 0;
+    i2c.write(NFC_DEVICE_ADDR, cmd, 1);
+    i2c.write(NFC_DEVICE_ADDR, cmd+1, 1);
+}
+
+void nfc_emulate_init(unsigned char *id)
+{
+    unsigned char i;
+    
+    cmd[0] = NFC_EMULATE_INIT_ID;
+    cmd[1] = 3;
+    i2c.write(NFC_DEVICE_ADDR, cmd, 1);
+    i2c.write(NFC_DEVICE_ADDR, cmd+1, 1);
+
+    for(i=0;i<3;i++)
+    {
+        //dlc_i2c_send_byte(*(id + i));
+        i2c.write(NFC_DEVICE_ADDR, (char *)(id + i), 1);
+    }
+}