static int scpi_serial_source_remove(void *priv)
{
struct scpi_serial *sscpi = priv;
struct sr_serial_dev_inst *serial = sscpi->serial;
return serial_source_remove(serial);
}
/**
* Standard sr_session_stop() API helper.
*
* This function can be used to simplify most (serial port based) driver's
* dev_acquisition_stop() API callback.
*
* @param sdi The device instance for which acquisition should stop.
* Must not be NULL.
*
* @retval SR_OK Success.
* @retval SR_ERR_ARG Invalid arguments.
* @retval SR_ERR_DEV_CLOSED Device is closed.
* @retval SR_ERR Other errors.
*/
SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi)
{
struct sr_serial_dev_inst *serial = sdi->conn;
const char *prefix = sdi->driver->name;
int ret;
if (sdi->status != SR_ST_ACTIVE) {
sr_err("%s: Device inactive, can't stop acquisition.", prefix);
return SR_ERR_DEV_CLOSED;
}
sr_dbg("%s: Stopping acquisition.", prefix);
if ((ret = serial_source_remove(sdi->session, serial)) < 0) {
sr_err("%s: Failed to remove source: %d.", prefix, ret);
return ret;
}
if ((ret = sdi->driver->dev_close(sdi)) < 0) {
sr_err("%s: Failed to close device: %d.", prefix, ret);
return ret;
}
std_session_send_df_end(sdi);
return SR_OK;
}
/**
* Standard sr_session_stop() API helper.
*
* This function can be used to simplify most (serial port based) driver's
* dev_acquisition_stop() API callback.
*
* @param sdi The device instance for which acquisition should stop.
* Must not be NULL.
* @param cb_data Opaque 'cb_data' pointer. Must not be NULL.
* @param dev_close_fn Function pointer to the driver's dev_close().
* Must not be NULL.
* @param serial The serial device instance (struct serial_dev_inst *).
* Must not be NULL.
* @param[in] prefix A driver-specific prefix string used for log messages.
* Must not be NULL. An empty string is allowed.
*
* @retval SR_OK Success.
* @retval SR_ERR_ARG Invalid arguments.
* @retval SR_ERR_DEV_CLOSED Device is closed.
* @retval SR_ERR Other errors.
*/
SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
dev_close_callback dev_close_fn,
struct sr_serial_dev_inst *serial, const char *prefix)
{
int ret;
if (!prefix) {
sr_err("Invalid prefix.");
return SR_ERR_ARG;
}
if (sdi->status != SR_ST_ACTIVE) {
sr_err("%s: Device inactive, can't stop acquisition.", prefix);
return SR_ERR_DEV_CLOSED;
}
sr_dbg("%s: Stopping acquisition.", prefix);
if ((ret = serial_source_remove(sdi->session, serial)) < 0) {
sr_err("%s: Failed to remove source: %d.", prefix, ret);
return ret;
}
if ((ret = dev_close_fn(sdi)) < 0) {
sr_err("%s: Failed to close device: %d.", prefix, ret);
return ret;
}
std_session_send_df_end(sdi, prefix);
return SR_OK;
}
/**
* Standard sr_session_stop() API helper.
*
* This function can be used to simplify most (serial port based) driver's
* dev_acquisition_stop() API callback.
*
* @param sdi The device instance for which acquisition should stop.
* Must not be NULL.
* @param cb_data Opaque 'cb_data' pointer. Must not be NULL.
* @param dev_close_fn Function pointer to the driver's dev_close().
* Must not be NULL.
* @param serial The serial device instance (struct serial_dev_inst *).
* Must not be NULL.
* @param[in] prefix A driver-specific prefix string used for log messages.
* Must not be NULL. An empty string is allowed.
*
* @retval SR_OK Success.
* @retval SR_ERR_ARG Invalid arguments.
* @retval SR_ERR_DEV_CLOSED Device is closed.
* @retval SR_ERR Other errors.
*/
SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
void *cb_data, dev_close_callback dev_close_fn,
struct sr_serial_dev_inst *serial, const char *prefix)
{
int ret;
struct sr_datafeed_packet packet;
if (!prefix) {
sr_err("Invalid prefix.");
return SR_ERR_ARG;
}
if (sdi->status != SR_ST_ACTIVE) {
sr_err("%s: Device inactive, can't stop acquisition.", prefix);
return SR_ERR_DEV_CLOSED;
}
sr_dbg("%s: Stopping acquisition.", prefix);
if ((ret = serial_source_remove(sdi->session, serial)) < 0) {
sr_err("%s: Failed to remove source: %d.", prefix, ret);
return ret;
}
if ((ret = dev_close_fn(sdi)) < 0) {
sr_err("%s: Failed to close device: %d.", prefix, ret);
return ret;
}
/* Send SR_DF_END packet to the session bus. */
sr_dbg("%s: Sending SR_DF_END packet.", prefix);
packet.type = SR_DF_END;
packet.payload = NULL;
if ((ret = sr_session_send(cb_data, &packet)) < 0) {
sr_err("%s: Failed to send SR_DF_END packet: %d.", prefix, ret);
return ret;
}
return SR_OK;
}
