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logging: Add ipc_service log backend

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Added backend that sends messages over ipc_service. It uses
log_backend_remote and will talk to log_link_ipc_service based
on log_link_remote.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This commit is contained in:
Krzysztof Chruscinski 2021-08-12 09:17:48 +02:00 • committed by Carles Cufí
commit b01867812e
4 changed files with 99 additions and 1 deletions
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1
subsys/logging/CMakeLists.txt
View file

@ -70,7 +70,6 @@ if(NOT CONFIG_LOG_MODE_MINIMAL)
log_multidomain_link.c
)
endif()
else()
zephyr_sources(log_minimal.c)

5
subsys/logging/backends/CMakeLists.txt
View file

@ -69,3 +69,8 @@ zephyr_sources_ifdef(
CONFIG_LOG_MULTIDOMAIN_BACKEND
log_multidomain_backend.c
)
zephyr_sources_ifdef(
CONFIG_LOG_BACKEND_IPC_SERVICE
log_backend_ipc_service.c
)

4
subsys/logging/backends/Kconfig.multidomain
View file

@ -5,3 +5,7 @@ config LOG_MULTIDOMAIN_BACKEND
bool
select LOG_TIMESTAMP_64BIT
select LOG_MSG_APPEND_RO_STRING_LOC
config LOG_BACKEND_IPC_SERVICE
bool "IPC service backend"
select LOG_MULTIDOMAIN_BACKEND

90
subsys/logging/backends/log_backend_ipc_service.c Normal file
View file

@ -0,0 +1,90 @@
/*
* Copyright (c) 2021 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/ipc/ipc_service.h>
#include <zephyr/logging/log_multidomain_helper.h>
#include <zephyr/logging/log_backend.h>
#include <zephyr/logging/log_ctrl.h>
struct log_backend_ipc_service {
struct ipc_ept ept;
struct log_multidomain_backend backend_remote;
};
static void bound_cb(void *priv)
{
struct log_multidomain_backend *backend_remote = priv;
log_multidomain_backend_on_started(backend_remote, 0);
}
static void error_cb(const char *message, void *priv)
{
struct log_multidomain_backend *backend_remote = priv;
log_multidomain_backend_on_error(backend_remote, -EIO);
}
static void recv_cb(const void *data, size_t len, void *priv)
{
struct log_multidomain_backend *backend_remote = priv;
log_multidomain_backend_on_recv_cb(backend_remote, data, len);
}
static int backend_ipc_service_send(struct log_multidomain_backend *backend_remote,
void *data, size_t len)
{
struct log_backend_ipc_service *backend_ipc_service =
CONTAINER_OF(backend_remote, struct log_backend_ipc_service, backend_remote);
int err = ipc_service_send(&backend_ipc_service->ept, data, len);
return err;
}
static int backend_ipc_service_init(struct log_multidomain_backend *backend_remote)
{
struct log_backend_ipc_service *backend_ipc_service =
CONTAINER_OF(backend_remote, struct log_backend_ipc_service, backend_remote);
static struct ipc_ept_cfg ept_cfg = {
.name = "logging",
.prio = 0,
.cb = {
.bound = bound_cb,
.received = recv_cb,
.error = error_cb,
},
};
const struct device *ipc_instance = DEVICE_DT_GET(DT_CHOSEN(zephyr_log_ipc));
int err;
ept_cfg.priv = (void *)backend_remote;
err = ipc_service_open_instance(ipc_instance);
if (err < 0 && err != -EALREADY) {
return err;
}
err = ipc_service_register_endpoint(ipc_instance, &backend_ipc_service->ept, &ept_cfg);
return err;
}
struct log_multidomain_backend_transport_api log_backend_ipc_service_transport_api = {
.init = backend_ipc_service_init,
.send = backend_ipc_service_send
};
static struct log_backend_ipc_service backend_ipc_service_data = {
.backend_remote = {
.transport_api = &log_backend_ipc_service_transport_api
}
};
LOG_BACKEND_DEFINE(backend_ipc_service,
log_multidomain_backend_api,
true,
&backend_ipc_service_data.backend_remote);