1f7d0b6cb0
Add modem pipelink module which exposes modem pipes globally. The pipelink module implements a callback to inform when a pipe becomes available to use by whichever modem is attached to it. This could be a shell, or a network interface. The module aims to allow modem drivers to be split into modules, and allowing applications to implement their own custom logic without altering the modem drivers. Signed-off-by: Bjarki Arge Andreasen <bjarki@arge-andreasen.me>
83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
/*
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* Copyright (c) 2024 Trackunit Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/modem/pipelink.h>
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static void try_callback(struct modem_pipelink *link, enum modem_pipelink_event event)
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{
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if (link->callback == NULL) {
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return;
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}
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link->callback(link, event, link->user_data);
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}
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void modem_pipelink_attach(struct modem_pipelink *link,
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modem_pipelink_callback callback,
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void *user_data)
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{
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K_SPINLOCK(&link->spinlock) {
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link->callback = callback;
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link->user_data = user_data;
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}
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}
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bool modem_pipelink_is_connected(struct modem_pipelink *link)
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{
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bool connected;
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K_SPINLOCK(&link->spinlock) {
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connected = link->connected;
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}
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return connected;
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}
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struct modem_pipe *modem_pipelink_get_pipe(struct modem_pipelink *link)
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{
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return link->pipe;
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}
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void modem_pipelink_release(struct modem_pipelink *link)
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{
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K_SPINLOCK(&link->spinlock) {
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link->callback = NULL;
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link->user_data = NULL;
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}
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}
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void modem_pipelink_init(struct modem_pipelink *link, struct modem_pipe *pipe)
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{
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link->pipe = pipe;
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link->callback = NULL;
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link->user_data = NULL;
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link->connected = false;
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}
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void modem_pipelink_notify_connected(struct modem_pipelink *link)
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{
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K_SPINLOCK(&link->spinlock) {
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if (link->connected) {
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K_SPINLOCK_BREAK;
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}
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link->connected = true;
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try_callback(link, MODEM_PIPELINK_EVENT_CONNECTED);
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}
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}
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void modem_pipelink_notify_disconnected(struct modem_pipelink *link)
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{
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K_SPINLOCK(&link->spinlock) {
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if (!link->connected) {
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K_SPINLOCK_BREAK;
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}
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link->connected = false;
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try_callback(link, MODEM_PIPELINK_EVENT_DISCONNECTED);
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}
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}
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