linux/drivers/firmware/broadcom/tee_bnxt_fw.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright 2019 Broadcom.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sizes.h>
#include <linux/slab.h>
#include <linux/tee_drv.h>
#include <linux/uuid.h>

#include <linux/firmware/broadcom/tee_bnxt_fw.h>

#define MAX_SHM_MEM_SZ …

#define MAX_TEE_PARAM_ARRY_MEMB …

enum ta_cmd { … };

/**
 * struct tee_bnxt_fw_private - OP-TEE bnxt private data
 * @dev:		OP-TEE based bnxt device.
 * @ctx:		OP-TEE context handler.
 * @session_id:		TA session identifier.
 */
struct tee_bnxt_fw_private { … };

static struct tee_bnxt_fw_private pvt_data;

static void prepare_args(int cmd,
			 struct tee_ioctl_invoke_arg *arg,
			 struct tee_param *param)
{ … }

/**
 * tee_bnxt_fw_load() - Load the bnxt firmware
 *		    Uses an OP-TEE call to start a secure
 *		    boot process.
 * Returns 0 on success, negative errno otherwise.
 */
int tee_bnxt_fw_load(void)
{ … }
EXPORT_SYMBOL(…);

/**
 * tee_bnxt_copy_coredump() - Copy coredump from the allocated memory
 *			    Uses an OP-TEE call to copy coredump
 * @buf:	destination buffer where core dump is copied into
 * @offset:	offset from the base address of core dump area
 * @size:	size of the dump
 *
 * Returns 0 on success, negative errno otherwise.
 */
int tee_bnxt_copy_coredump(void *buf, u32 offset, u32 size)
{ … }
EXPORT_SYMBOL(…);

static int optee_ctx_match(struct tee_ioctl_version_data *ver, const void *data)
{ … }

static int tee_bnxt_fw_probe(struct device *dev)
{ … }

static int tee_bnxt_fw_remove(struct device *dev)
{ … }

static void tee_bnxt_fw_shutdown(struct device *dev)
{ … }

static const struct tee_client_device_id tee_bnxt_fw_id_table[] = …;

MODULE_DEVICE_TABLE(tee, tee_bnxt_fw_id_table);

static struct tee_client_driver tee_bnxt_fw_driver = …;

static int __init tee_bnxt_fw_mod_init(void)
{ … }

static void __exit tee_bnxt_fw_mod_exit(void)
{ … }

module_init(…) …;
module_exit(tee_bnxt_fw_mod_exit);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;