/**
* Send a packet to whatever is listening on the datafeed bus.
*
* Hardware drivers use this to send a data packet to the frontend.
*
* @param dev TODO.
* @param packet The datafeed packet to send to the session bus.
*
* @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
*/
SR_PRIV int sr_session_send(struct sr_dev *dev,
struct sr_datafeed_packet *packet)
{
GSList *l;
sr_datafeed_callback_t cb;
if (!dev) {
sr_err("session: %s: dev was NULL", __func__);
return SR_ERR_ARG;
}
if (!packet) {
sr_err("session: %s: packet was NULL", __func__);
return SR_ERR_ARG;
}
for (l = session->datafeed_callbacks; l; l = l->next) {
if (sr_log_loglevel_get() >= SR_LOG_DBG)
datafeed_dump(packet);
cb = l->data;
/* TODO: Check for cb != NULL. */
cb(dev, packet);
}
return SR_OK;
}
/**
* Send a packet to whatever is listening on the datafeed bus.
*
* Hardware drivers use this to send a data packet to the frontend.
*
* @param sdi TODO.
* @param packet The datafeed packet to send to the session bus.
*
* @retval SR_OK Success.
* @retval SR_ERR_ARG Invalid argument.
*
* @private
*/
SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
const struct sr_datafeed_packet *packet)
{
GSList *l;
struct datafeed_callback *cb_struct;
struct sr_datafeed_packet *packet_out;
if (!sdi) {
sr_err("%s: sdi was NULL", __func__);
return SR_ERR_ARG;
}
if (!packet) {
sr_err("%s: packet was NULL", __func__);
return SR_ERR_ARG;
}
if (!sdi->session) {
sr_err("%s: session was NULL", __func__);
return SR_ERR_BUG;
}
/*
* Pass the packet to all callbacks.
*/
for (l = sdi->session->datafeed_callbacks; l; l = l->next) {
if (sr_log_loglevel_get() >= SR_LOG_DBG)
datafeed_dump(packet);
cb_struct = l->data;
cb_struct->cb(sdi, packet, cb_struct->cb_data);
}
return SR_OK;
}
/**
* Send a packet to whatever is listening on the datafeed bus.
*
* Hardware drivers use this to send a data packet to the frontend.
*
* @param sdi TODO.
* @param packet The datafeed packet to send to the session bus.
*
* @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
*
* @private
*/
SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
const struct sr_datafeed_packet *packet)
{
GSList *l;
sr_datafeed_callback_t cb;
if (!sdi) {
sr_err("%s: sdi was NULL", __func__);
return SR_ERR_ARG;
}
if (!packet) {
sr_err("%s: packet was NULL", __func__);
return SR_ERR_ARG;
}
for (l = session->datafeed_callbacks; l; l = l->next) {
if (sr_log_loglevel_get() >= SR_LOG_DBG)
datafeed_dump(packet);
cb = l->data;
cb(sdi, packet);
}
return SR_OK;
}
/**
* Send a packet to whatever is listening on the datafeed bus.
*
* Hardware drivers use this to send a data packet to the frontend.
*
* @param sdi TODO.
* @param packet The datafeed packet to send to the session bus.
*
* @retval SR_OK Success.
* @retval SR_ERR_ARG Invalid argument.
*
* @private
*/
SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
const struct sr_datafeed_packet *packet)
{
GSList *l;
struct datafeed_callback *cb_struct;
struct sr_datafeed_packet *packet_in, *packet_out;
struct sr_transform *t;
int ret;
if (!sdi) {
sr_err("%s: sdi was NULL", __func__);
return SR_ERR_ARG;
}
if (!packet) {
sr_err("%s: packet was NULL", __func__);
return SR_ERR_ARG;
}
if (!sdi->session) {
sr_err("%s: session was NULL", __func__);
return SR_ERR_BUG;
}
if (packet->type == SR_DF_ANALOG_OLD) {
/* Convert to SR_DF_ANALOG. */
const struct sr_datafeed_analog_old *analog_old = packet->payload;
struct sr_analog_encoding encoding;
struct sr_analog_meaning meaning;
struct sr_analog_spec spec;
struct sr_datafeed_analog analog;
struct sr_datafeed_packet new_packet;
new_packet.type = SR_DF_ANALOG;
new_packet.payload = &analog;
analog.data = analog_old->data;
analog.num_samples = analog_old->num_samples;
analog.encoding = &encoding;
analog.meaning = &meaning;
analog.spec = &spec;
encoding.unitsize = sizeof(float);
encoding.is_signed = TRUE;
encoding.is_float = TRUE;
#ifdef WORDS_BIGENDIAN
encoding.is_bigendian = TRUE;
#else
encoding.is_bigendian = FALSE;
#endif
encoding.digits = 0;
encoding.is_digits_decimal = FALSE;
encoding.scale.p = 1;
encoding.scale.q = 1;
encoding.offset.p = 0;
encoding.offset.q = 1;
meaning.mq = analog_old->mq;
meaning.unit = analog_old->unit;
meaning.mqflags = analog_old->mqflags;
meaning.channels = analog_old->channels;
spec.spec_digits = 0;
return sr_session_send(sdi, &new_packet);
}
/*
* Pass the packet to the first transform module. If that returns
* another packet (instead of NULL), pass that packet to the next
* transform module in the list, and so on.
*/
packet_in = (struct sr_datafeed_packet *)packet;
for (l = sdi->session->transforms; l; l = l->next) {
t = l->data;
sr_spew("Running transform module '%s'.", t->module->id);
ret = t->module->receive(t, packet_in, &packet_out);
if (ret < 0) {
sr_err("Error while running transform module: %d.", ret);
return SR_ERR;
}
if (!packet_out) {
/*
* If any of the transforms don't return an output
* packet, abort.
*/
sr_spew("Transform module didn't return a packet, aborting.");
return SR_OK;
} else {
/*
* Use this transform module's output packet as input
* for the next transform module.
*/
packet_in = packet_out;
}
}
packet = packet_in;
/*
* If the last transform did output a packet, pass it to all datafeed
* callbacks.
*/
for (l = sdi->session->datafeed_callbacks; l; l = l->next) {
if (sr_log_loglevel_get() >= SR_LOG_DBG)
datafeed_dump(packet);
cb_struct = l->data;
cb_struct->cb(sdi, packet, cb_struct->cb_data);
}
return SR_OK;
}
/**
* Send a packet to whatever is listening on the datafeed bus.
*
* Hardware drivers use this to send a data packet to the frontend.
*
* @param sdi TODO.
* @param packet The datafeed packet to send to the session bus.
*
* @retval SR_OK Success.
* @retval SR_ERR_ARG Invalid argument.
*
* @private
*/
SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
const struct sr_datafeed_packet *packet)
{
GSList *l;
struct datafeed_callback *cb_struct;
struct sr_datafeed_packet *packet_in, *packet_out;
struct sr_transform *t;
int ret;
if (!sdi) {
sr_err("%s: sdi was NULL", __func__);
return SR_ERR_ARG;
}
if (!packet) {
sr_err("%s: packet was NULL", __func__);
return SR_ERR_ARG;
}
if (!sdi->session) {
sr_err("%s: session was NULL", __func__);
return SR_ERR_BUG;
}
/*
* Pass the packet to the first transform module. If that returns
* another packet (instead of NULL), pass that packet to the next
* transform module in the list, and so on.
*/
packet_in = (struct sr_datafeed_packet *)packet;
for (l = sdi->session->transforms; l; l = l->next) {
t = l->data;
sr_spew("Running transform module '%s'.", t->module->id);
ret = t->module->receive(t, packet_in, &packet_out);
if (ret < 0) {
sr_err("Error while running transform module: %d.", ret);
return SR_ERR;
}
if (!packet_out) {
/*
* If any of the transforms don't return an output
* packet, abort.
*/
sr_spew("Transform module didn't return a packet, aborting.");
return SR_OK;
} else {
/*
* Use this transform module's output packet as input
* for the next transform module.
*/
packet_in = packet_out;
}
}
packet = packet_in;
/*
* If the last transform did output a packet, pass it to all datafeed
* callbacks.
*/
for (l = sdi->session->datafeed_callbacks; l; l = l->next) {
if (sr_log_loglevel_get() >= SR_LOG_DBG)
datafeed_dump(packet);
cb_struct = l->data;
cb_struct->cb(sdi, packet, cb_struct->cb_data);
}
return SR_OK;
}