samples/subsys/ipc/openamp/platform/platform.c

/*
 * Copyright (c) 2018 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr.h>

#include "platform.h"
#include "resource_table.h"

extern struct hil_platform_ops platform_ops;

static metal_phys_addr_t shm_physmap[] = { SHM_START_ADDRESS };
static struct metal_device shm_device = {
	.name = SHM_DEVICE_NAME,
	.bus = NULL,
	.num_regions = 1,
	{
		{
			.virt       = (void *) SHM_START_ADDRESS,
			.physmap    = shm_physmap,
			.size       = SHM_SIZE,
			.page_shift = 0xffffffff,
			.page_mask  = 0xffffffff,
			.mem_flags  = 0,
			.ops        = { NULL },
		},
	},
	.node = { NULL },
	.irq_num = 0,
	.irq_info = NULL
};

struct hil_proc *platform_init(int role)
{
	int status;

	status = metal_register_generic_device(&shm_device);
	if (status != 0) {
		printk("metal_register_generic_device(): could not register "
		       "shared memory device: error code %d\n", status);
		return NULL;
	}

	struct hil_proc *proc = hil_create_proc(&platform_ops,
						role != RPMSG_MASTER, NULL);
	if (proc == NULL) {
		printk("platform_create(): could not allocate hil_proc\n");
		return NULL;
	}

	hil_set_shm(proc, "generic", SHM_DEVICE_NAME, SHM_START_ADDRESS,
		    SHM_SIZE);
	return proc;
}