fixeria has uploaded this change for review. (
https://gerrit.osmocom.org/c/libosmocore/+/35019?usp=email )
Change subject: soft_uart: add doxygen documentation
......................................................................
soft_uart: add doxygen documentation
Change-Id: Ib0dcea0c35619bda5626cf75044000951b26485b
Related: OS#4396
---
M src/core/soft_uart.c
1 file changed, 42 insertions(+), 6 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/19/35019/1
diff --git a/src/core/soft_uart.c b/src/core/soft_uart.c
index e97ad2f..a668b21 100644
--- a/src/core/soft_uart.c
+++ b/src/core/soft_uart.c
@@ -26,7 +26,7 @@
#include <osmocom/core/timer.h>
#include <osmocom/core/soft_uart.h>
-/*! one instance of a soft-uart */
+/*! Internal state of a soft-UART */
struct osmo_soft_uart {
struct osmo_soft_uart_cfg cfg;
const char *name;
@@ -49,6 +49,7 @@
} tx;
};
+/*! Default soft-UART configuration (8-N-1) */
static struct osmo_soft_uart_cfg suart_default_cfg = {
.num_data_bits = 8,
.num_stop_bits = 1,
@@ -154,7 +155,11 @@
suart_flush_rx(suart);
}
-/*! feed a number of unpacked bits into the soft-uart receiver */
+/*! Feed a number of unpacked bits into the soft-UART receiver.
+ * \param[in] suart soft-UART instance to feed bits into.
+ * \param[in] ubits pointer to the unpacked bits.
+ * \param[in] n_ubits number of unpacked bits to be fed.
+ * \returns 0 on success; negative on error. */
int osmo_soft_uart_rx_ubits(struct osmo_soft_uart *suart, const ubit_t *ubits,
size_t n_ubits)
{
for (size_t i = 0; i < n_ubits; i++) {
@@ -167,7 +172,9 @@
* Transmitter
*************************************************************************/
-/*! enqueue the given message buffer into the transmit queue of the UART. */
+/*! Enqueue the given message buffer into the transmit queue of the soft-UART.
+ * \param[in] suart soft-UART instance for transmitting data.
+ * \param[in] tx_data message buffer containing to be transmitted data. */
void osmo_soft_uart_tx(struct osmo_soft_uart *suart, struct msgb *tx_data)
{
if (!suart->tx.msg)
@@ -190,7 +197,11 @@
return 1;
}
-/*! pull then number of specified unpacked bits out of the UART Transmitter */
+/*! Pull a number of unpacked bits out of the soft-UART transmitter.
+ * \param[in] suart soft-UART instance to pull the bits from.
+ * \param[out] ubits pointer to a buffer where to store pulled bits.
+ * \param[in] n_ubits number of unpacked bits to be pulled.
+ * \returns number of unpacked bits pulled; negative on error. */
int osmo_soft_uart_tx_ubits(struct osmo_soft_uart *suart, ubit_t *ubits,
size_t n_ubits)
{
for (size_t i = 0; i < n_ubits; i++) {
@@ -199,7 +210,10 @@
return n_ubits;
}
-/*! Set the modem status lines of the UART */
+/*! Set the modem status lines of the given soft-UART.
+ * \param[in] suart soft-UART instance to update the modem status.
+ * \param[in] status mask of osmo_soft_uart_status.
+ * \returns 0 on success; negative on error. */
int osmo_soft_uart_set_status(struct osmo_soft_uart *suart, unsigned int
status)
{
/* FIXME: Tx */
@@ -211,6 +225,10 @@
* Management / Initialization
*************************************************************************/
+/*! Allocate a soft-UART instance.
+ * \param[in] ctx parent talloc context.
+ * \param[in] name name of the soft-UART instance.
+ * \returns pointer to allocated soft-UART instance; NULL on error. */
struct osmo_soft_uart *osmo_soft_uart_alloc(void *ctx, const char *name)
{
struct osmo_soft_uart *suart = talloc_zero(ctx, struct osmo_soft_uart);
@@ -236,7 +254,10 @@
talloc_free(suart);
}
-/*! change soft-UART configuration to user-provided config */
+/*! Change soft-UART configuration to the user-provided config.
+ * \param[in] suart soft-UART instance to be re-configured.
+ * \param[in] cfg the user-provided config to be applied.
+ * \returns 0 on success; negative on error. */
int osmo_soft_uart_configure(struct osmo_soft_uart *suart, const struct
osmo_soft_uart_cfg *cfg)
{
/* consistency checks on the configuration */
@@ -262,6 +283,11 @@
return 0;
}
+/*! Enable/disable receiver and/or transmitter of the given soft-UART.
+ * \param[in] suart soft-UART instance to be re-configured.
+ * \param[in] rx enable/disable state of the receiver.
+ * \param[in] tx enable/disable state of the transmitter.
+ * \returns 0 on success; negative on error. */
int osmo_soft_uart_enable(struct osmo_soft_uart *suart, bool rx, bool tx)
{
if (!rx && suart->rx.running) {
--
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: Ib0dcea0c35619bda5626cf75044000951b26485b
Gerrit-Change-Number: 35019
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <vyanits...@sysmocom.de>
Gerrit-MessageType: newchange
