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authorHarald Welte <laforge@gnumonks.org>2013-02-03 12:06:58 +0100
committerHarald Welte <laforge@gnumonks.org>2013-02-07 15:03:08 +0100
commit647db848e3eb9724dce31feeeee803d9b5b4dc68 (patch)
tree576508754dd243e12b8786cd85d65098f8049e1f /openbsc/src/libtrau
parentce1d742f27b54b5a05d4cd351641f4da1d2e9524 (diff)
add some more docbook snippets
Diffstat (limited to 'openbsc/src/libtrau')
-rw-r--r--openbsc/src/libtrau/rtp_proxy.c38
1 files changed, 30 insertions, 8 deletions
diff --git a/openbsc/src/libtrau/rtp_proxy.c b/openbsc/src/libtrau/rtp_proxy.c
index f7c5a4f..0074b4a 100644
--- a/openbsc/src/libtrau/rtp_proxy.c
+++ b/openbsc/src/libtrau/rtp_proxy.c
@@ -1,6 +1,6 @@
/* RTP proxy handling for ip.access nanoBTS */
-/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
+/* (C) 2009-2013 by Harald Welte <laforge@gnumonks.org>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
@@ -212,7 +212,10 @@ static void tv_difference(struct timeval *diff, const struct timeval *from,
diff->tv_sec = to->tv_sec - from->tv_sec;
}
-/* encode and send a rtp frame */
+/*! \brief encode and send a rtp frame
+ * \param[in] rs RTP socket through which we shall send
+ * \param[in] frame GSM RTP frame to be sent
+ */
int rtp_send_frame(struct rtp_socket *rs, struct gsm_data_frame *frame)
{
struct rtp_sub_socket *rss = &rs->rtp;
@@ -464,7 +467,7 @@ out_free:
return rc;
}
-/* write from tx_queue to RTP/RTCP socket */
+/* \brief write from tx_queue to RTP/RTCP socket */
static int rtp_socket_write(struct rtp_socket *rs, struct rtp_sub_socket *rss)
{
struct msgb *msg;
@@ -489,7 +492,7 @@ static int rtp_socket_write(struct rtp_socket *rs, struct rtp_sub_socket *rss)
}
-/* callback for the select.c:bfd_* layer */
+/*! \brief callback for the select.c:bfd_* layer */
static int rtp_bfd_cb(struct osmo_fd *bfd, unsigned int flags)
{
struct rtp_socket *rs = bfd->data;
@@ -515,6 +518,7 @@ static int rtp_bfd_cb(struct osmo_fd *bfd, unsigned int flags)
return 0;
}
+/*! \brief initialize one rtp sub-socket */
static void init_rss(struct rtp_sub_socket *rss,
struct rtp_socket *rs, int fd, int priv_nr)
{
@@ -525,6 +529,7 @@ static void init_rss(struct rtp_sub_socket *rss,
rss->bfd.cb = rtp_bfd_cb;
}
+/*! \brief create a new RTP/RTCP socket and bind it */
struct rtp_socket *rtp_socket_create(void)
{
int rc;
@@ -604,7 +609,10 @@ static int rtp_sub_socket_bind(struct rtp_sub_socket *rss, uint32_t ip,
#define RTP_PORT_BASE 30000
static unsigned int next_udp_port = RTP_PORT_BASE;
-/* bind a RTP socket to a local address */
+/*! \brief bind a RTP socket to a specific local address
+ * \param[in] rs RTP socket to be bound
+ * \param[in] ip local IP address to which socket is to be bound
+ */
int rtp_socket_bind(struct rtp_socket *rs, uint32_t ip)
{
int rc = -EIO;
@@ -655,7 +663,11 @@ static int rtp_sub_socket_connect(struct rtp_sub_socket *rss,
&alen);
}
-/* 'connect' a RTP socket to a remote peer */
+/*! \brief 'connect' a RTP socket to a remote peer
+ * \param[in] rs RTP socket to be connected
+ * \param[in] ip remote IP address to which to connect
+ * \param[in] port remote UDP port number to which to connect
+ */
int rtp_socket_connect(struct rtp_socket *rs, uint32_t ip, uint16_t port)
{
int rc;
@@ -672,7 +684,10 @@ int rtp_socket_connect(struct rtp_socket *rs, uint32_t ip, uint16_t port)
return rtp_sub_socket_connect(&rs->rtcp, ip, port+1);
}
-/* bind two RTP/RTCP sockets together */
+/*! \brief bind two RTP/RTCP sockets together in the proxy
+ * \param[in] this First RTP socket
+ * \param[in] other Second RTP socket
+ */
int rtp_socket_proxy(struct rtp_socket *this, struct rtp_socket *other)
{
DEBUGP(DLMUX, "rtp_socket_proxy(this=%p, other=%p)\n",
@@ -687,7 +702,11 @@ int rtp_socket_proxy(struct rtp_socket *this, struct rtp_socket *other)
return 0;
}
-/* bind RTP/RTCP socket to application */
+/*! \brief bind RTP/RTCP socket to application, disabling proxy
+ * \param[in] this RTP socket
+ * \param[in] net gsm_network argument to trau_tx_to_mncc()
+ * \param[in] callref callref argument to trau_tx_to_mncc()
+ */
int rtp_socket_upstream(struct rtp_socket *this, struct gsm_network *net,
uint32_t callref)
{
@@ -712,6 +731,9 @@ static void free_tx_queue(struct rtp_sub_socket *rss)
msgb_free(msg);
}
+/*! \brief Free/release a previously allocated RTP socket
+ * \param[in[] rs RTP/RTCP socket to be released
+ */
int rtp_socket_free(struct rtp_socket *rs)
{
DEBUGP(DLMUX, "rtp_socket_free(rs=%p)\n", rs);