133 lines
2.5 KiB
C
133 lines
2.5 KiB
C
/** @file
|
|
* @brief Modem context helper driver
|
|
*
|
|
* A modem context driver allowing application to handle all
|
|
* aspects of received protocol data.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2019 Foundries.io
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <logging/log.h>
|
|
LOG_MODULE_REGISTER(modem_context, CONFIG_MODEM_LOG_LEVEL);
|
|
|
|
#include <kernel.h>
|
|
|
|
#include "modem_context.h"
|
|
|
|
static struct modem_context *contexts[CONFIG_MODEM_CONTEXT_MAX_NUM];
|
|
|
|
char *modem_context_sprint_ip_addr(const struct sockaddr *addr)
|
|
{
|
|
static char buf[NET_IPV6_ADDR_LEN];
|
|
|
|
if (addr->sa_family == AF_INET6) {
|
|
return net_addr_ntop(AF_INET6, &net_sin6(addr)->sin6_addr,
|
|
buf, sizeof(buf));
|
|
}
|
|
|
|
if (addr->sa_family == AF_INET) {
|
|
return net_addr_ntop(AF_INET, &net_sin(addr)->sin_addr,
|
|
buf, sizeof(buf));
|
|
}
|
|
|
|
LOG_ERR("Unknown IP address family:%d", addr->sa_family);
|
|
strcpy(buf, "unk");
|
|
return buf;
|
|
}
|
|
|
|
int modem_context_get_addr_port(const struct sockaddr *addr, uint16_t *port)
|
|
{
|
|
if (!addr || !port) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (addr->sa_family == AF_INET6) {
|
|
*port = ntohs(net_sin6(addr)->sin6_port);
|
|
return 0;
|
|
} else if (addr->sa_family == AF_INET) {
|
|
*port = ntohs(net_sin(addr)->sin_port);
|
|
return 0;
|
|
}
|
|
|
|
return -EPROTONOSUPPORT;
|
|
}
|
|
|
|
/**
|
|
* @brief Finds modem context which owns the iface device.
|
|
*
|
|
* @param *dev: device used by the modem iface.
|
|
*
|
|
* @retval Modem context or NULL.
|
|
*/
|
|
struct modem_context *modem_context_from_iface_dev(struct device *dev)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(contexts); i++) {
|
|
if (contexts[i] && contexts[i]->iface.dev == dev) {
|
|
return contexts[i];
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* @brief Assign a modem context if there is free space.
|
|
*
|
|
* @note Amount of stored modem contexts is determined by
|
|
* CONFIG_MODEM_CONTEXT_MAX_NUM.
|
|
*
|
|
* @param *ctx: modem context to persist.
|
|
*
|
|
* @retval 0 if ok, < 0 if error.
|
|
*/
|
|
static int modem_context_get(struct modem_context *ctx)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(contexts); i++) {
|
|
if (!contexts[i]) {
|
|
contexts[i] = ctx;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
struct modem_context *modem_context_from_id(int id)
|
|
{
|
|
if (id >= 0 && id < ARRAY_SIZE(contexts)) {
|
|
return contexts[id];
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
int modem_context_register(struct modem_context *ctx)
|
|
{
|
|
int ret;
|
|
|
|
if (!ctx) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = modem_context_get(ctx);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
ret = modem_pin_init(ctx);
|
|
if (ret < 0) {
|
|
LOG_ERR("modem pin init error: %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|