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Code Issues Releases Activity

gathdlc: Add receive ACCM support

This commit is contained in:
Denis Kenzior 2010-04-27 23:37:53 -05:00
parent 7c6c72f558
commit 41ce6212a1
2 changed files with 23 additions and 1 deletions
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21
gatchat/gathdlc.c
View File

@ -54,12 +54,29 @@ struct _GAtHDLC {
guint16 decode_fcs;
gboolean decode_escape;
guint32 xmit_accm[8];
guint32 recv_accm;
GAtReceiveFunc receive_func;
gpointer receive_data;
GAtDebugFunc debugf;
gpointer debug_data;
};
void g_at_hdlc_set_recv_accm(GAtHDLC *hdlc, guint32 accm)
{
if (hdlc == NULL)
return;
hdlc->recv_accm = accm;
}
guint32 g_at_hdlc_get_recv_accm(GAtHDLC *hdlc)
{
if (hdlc == NULL)
return 0;
return hdlc->recv_accm;
}
static void new_bytes(GAtHDLC *hdlc)
{
unsigned int len = ring_buffer_len(hdlc->read_buffer);
@ -87,7 +104,8 @@ static void new_bytes(GAtHDLC *hdlc)
hdlc->decode_fcs = HDLC_INITFCS;
hdlc->decode_offset = 0;
} else {
} else if (*buf >= 0x20 ||
(hdlc->recv_accm & (1 << *buf)) == 0) {
hdlc->decode_buffer[hdlc->decode_offset++] = *buf;
hdlc->decode_fcs = HDLC_FCS(hdlc->decode_fcs, *buf);
}
@ -179,6 +197,7 @@ GAtHDLC *g_at_hdlc_new(GIOChannel *channel)
hdlc->xmit_accm[0] = ~0U;
hdlc->xmit_accm[3] = 0x60000000; /* 0x7d, 0x7e */
hdlc->recv_accm = ~0U;
hdlc->read_buffer = ring_buffer_new(BUFFER_SIZE);
if (!hdlc->read_buffer)

3
gatchat/gathdlc.h
View File

@ -42,6 +42,9 @@ void g_at_hdlc_set_debug(GAtHDLC *hdlc, GAtDebugFunc func, gpointer user_data);
void g_at_hdlc_set_xmit_accm(GAtHDLC *hdlc, guint32 accm);
guint32 g_at_hdlc_get_xmit_accm(GAtHDLC *hdlc);
void g_at_hdlc_set_recv_accm(GAtHDLC *hdlc, guint32 accm);
guint32 g_at_hdlc_get_recv_accm(GAtHDLC *hdlc);
void g_at_hdlc_set_receive(GAtHDLC *hdlc, GAtReceiveFunc func,
gpointer user_data);
gboolean g_at_hdlc_send(GAtHDLC *hdlc, const unsigned char *data, gsize size);