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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsPowerPCQorIQInterCom
*
* @brief Inter-Processor Communication API.
*/
/*
* Copyright (c) 2011 embedded brains GmbH. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LIBBSP_POWERPC_QORIQ_INTERCOM_H
#define LIBBSP_POWERPC_QORIQ_INTERCOM_H
#include <rtems.h>
#include <rtems/chain.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup QorIQInterCom QorIQ - Inter-Processor Communication Support
*
* @ingroup RTEMSBSPsPowerPCQorIQ
*
* @brief Inter-processor communication support.
*
* @{
*/
uint32_t qoriq_spin_lock(uint32_t *lock);
void qoriq_spin_unlock(uint32_t *lock, uint32_t msr);
#define INTERCOM_CORE_COUNT 2
#define INTERCOM_SERVICE_COUNT 8
typedef enum {
INTERCOM_TYPE_MPCI,
INTERCOM_TYPE_UART_0,
INTERCOM_TYPE_UART_1,
INTERCOM_TYPE_NETWORK,
INTERCOM_TYPE_CUSTOM_0,
INTERCOM_TYPE_CUSTOM_1,
INTERCOM_TYPE_CUSTOM_2,
INTERCOM_TYPE_CUSTOM_3,
INTERCOM_TYPE_CUSTOM_4
} intercom_type;
typedef enum {
INTERCOM_SIZE_64 = 0,
INTERCOM_SIZE_512,
INTERCOM_SIZE_2K,
INTERCOM_SIZE_4K
} intercom_size;
typedef struct intercom_packet {
union {
struct intercom_packet *next;
rtems_chain_node node;
} glue;
intercom_type type_index;
intercom_size size_index;
uint32_t flags;
size_t size;
uint32_t cache_line_alignment [2];
char data [];
} intercom_packet;
typedef void (*intercom_service)(intercom_packet *packet, void *arg);
void qoriq_intercom_init(void);
void qoriq_intercom_start(void);
void qoriq_intercom_service_install(intercom_type type, intercom_service service, void *arg);
void qoriq_intercom_service_remove(intercom_type type);
intercom_packet *qoriq_intercom_allocate_packet(intercom_type type, intercom_size size);
void qoriq_intercom_send_packets(int destination_core, intercom_packet *first, intercom_packet *last);
static inline void qoriq_intercom_send_packet(int destination_core, intercom_packet *packet)
{
qoriq_intercom_send_packets(destination_core, packet, packet);
}
void qoriq_intercom_broadcast_packets(intercom_packet *first, intercom_packet *last);
static inline void qoriq_intercom_broadcast_packet(intercom_packet *packet)
{
qoriq_intercom_broadcast_packets(packet, packet);
}
void qoriq_intercom_send(int destination_core, intercom_type type, intercom_size size, const void *buf, size_t n);
void qoriq_intercom_free_packet(intercom_packet *packet);
intercom_packet *qoriq_intercom_clone_packet(const intercom_packet *packet);
#ifdef RTEMS_MULTIPROCESSING
extern rtems_mpci_table qoriq_intercom_mpci;
#endif
/** @} */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_POWERPC_QORIQ_INTERCOM_H */
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