Diff: btserial.cpp

Revision:

13:327622e38551

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/btserial.cpp	Fri Jul 01 09:16:00 2011 +0000
@@ -0,0 +1,116 @@
+#include "btserial.h"
+
+btserial::btserial(char ba[6], char ch) {
+    L2CAPAddr a;
+    memcpy(&a.bdaddr, ba, 6);
+    a.psm = ch;
+    sendptr = 0;
+    recptrin = 0;
+    recptrout = bufsize - 1;
+    free = bufsize;
+    sock = Socket_Open(SOCKET_RFCOM, &a.hdr,  cb, this);
+}
+
+btserial::btserial(char ch) {
+    sendptr = 0;
+    recptrin = 0;
+    recptrout = bufsize - 1;
+    free = bufsize;
+    sock = Socket_Listen(SOCKET_RFCOM, ch,  cb, this);
+}
+
+void btserial::cb(int socket, SocketState state, const unsigned char *data, int len, void* userData) {
+    btserial *self = (btserial*)userData;
+    if (state == SocketState_Open)
+        if (len > 0)
+            self->stash(data, len);
+        else {
+            //Socket_GetOpt(sock, SO_RECBUF, &recbufsize, sizeof(recbufsize));
+            //Socket_GetOpt(sock, SO_SNDBUF, &sndbufsize, sizeof(sndbufsize));
+            port_settings ps;//defaults are ok
+            ps.baud = 3; //9600 baud
+            ps.bits = 3;//8 bits
+            ps.stop = 0;//1 bit
+            ps.par = 0; //no parity
+            ps.mask = MASK_BITRATE|MASK_DATABITS|MASK_STOPBITS|MASK_PARITYBITS;
+            //set_remote_port_parameters(sock, &ps);
+            self->open = true;
+        }
+        else if (state == SocketState_Closed)
+          self->open = false;
+}
+
+void btserial::stash(const unsigned char *data, int len) {
+    int i = 0;
+    while (i < len && free>0) {
+        recbuf[recptrin++] =  data[i++];
+        if (recptrin == bufsize) recptrin = 0;
+        free--;
+    }
+}
+
+int btserial::getc() {
+    if (free == bufsize || !open)
+        return -1;
+    free++;
+    recptrout++;
+    if (recptrout == bufsize) recptrout = 0;
+    return recbuf[recptrout];
+}
+
+int btserial::putc(int c) {
+    if (sendptr==bufsize || !open)
+        return -1;
+    sendbuf[sendptr++] = c;
+    if (sendptr==bufsize || c=='\n' || c=='\r') {
+        Socket_Send(sock, sendbuf, sendptr);
+        sendptr = 0;
+    }
+    return c;
+}
+
+void btserial::baud(int br) {
+    int rates[] = {2400,4800,7200,9600,19200,38400,57600,115200,230400};
+    if (!open) return;
+    for (int i = 0; i < sizeof(rates)/sizeof(int);i++)
+        if (rates[i] == br) {
+            port_settings ps;
+            ps.baud = i;
+            ps.mask = MASK_BITRATE;
+            set_remote_port_parameters(sock, &ps);
+            return;
+        }
+    printf("Illegal baudrate requested %d\n", br);
+}
+
+void btserial::format(int bits, Serial::Parity par, int stop) {
+if (!open) return;
+    port_settings ps;
+    ps.bits = bits-5;
+    ps.stop = stop-1;
+    switch (par) {
+        case Serial::None:
+            ps.par = 0;
+            ps.par_t = 0;
+            break;
+        case Serial::Odd:
+            ps.par = 1;
+            ps.par_t = 0;
+            break;
+        case Serial::Even:
+            ps.par = 1;
+            ps.par_t = 1;
+            break;
+        case Serial::Forced0:
+            ps.par = 1;
+            ps.par_t = 3;
+            break;
+        case Serial::Forced1:
+            ps.par = 1;
+            ps.par_t = 2;
+            break;
+    }
+    ps.mask = MASK_DATABITS|MASK_STOPBITS|MASK_PARITYBITS|MASK_PARITYTYPE;
+    set_remote_port_parameters(sock, &ps);
+}
+