linux/drivers/staging/media/atomisp/pci/runtime/eventq/src/eventq.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2015, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#include "ia_css_types.h"
#include "assert_support.h"
#include "ia_css_queue.h" /* sp2host_dequeue_irq_event() */
#include "ia_css_eventq.h"
#include "ia_css_event.h"	/* ia_css_event_encode()
				ia_css_event_decode()
				*/
int ia_css_eventq_recv(
    ia_css_queue_t *eventq_handle,
    uint8_t *payload)
{ … }

/*
 * @brief The Host sends the event to the SP.
 * Refer to "sh_css_sp.h" for details.
 */
int ia_css_eventq_send(
    ia_css_queue_t *eventq_handle,
    u8 evt_id,
    u8 evt_payload_0,
    u8 evt_payload_1,
    uint8_t evt_payload_2)
{ … }