103 lines
2.4 KiB
C
Executable File
103 lines
2.4 KiB
C
Executable File
/*
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* Copyright (C) 2012-2017, Samsung Electronics Co., Ltd.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include "tzdev.h"
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/* TZDEV platform specific functions */
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int __weak tzdev_platform_register(void)
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{
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return 0;
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}
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void __weak tzdev_platform_unregister(void)
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{
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return;
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}
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int __weak tzdev_platform_init(void)
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{
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return tzdev_run_init_sequence();
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}
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int __weak tzdev_platform_fini(void)
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{
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return 0;
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}
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int __weak tzdev_platform_open(struct inode *inode, struct file *filp)
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{
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(void)inode;
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(void)filp;
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return 0;
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}
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int __weak tzdev_platform_close(struct inode *inode, struct file *filp)
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{
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(void)inode;
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(void)filp;
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return 0;
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}
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long __weak tzdev_fd_platform_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
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{
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(void)filp;
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(void)cmd;
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(void)arg;
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return -ENOTTY;
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}
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int __weak tzdev_fd_platform_close(struct inode *inode, struct file *filp)
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{
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(void)inode;
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(void)filp;
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return 0;
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}
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int __weak tzdev_platform_smc_call(struct tzdev_smc_data *data)
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{
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register unsigned long _r0 __asm__(REGISTERS_NAME "0") = data->args[0] | TZDEV_SMC_MAGIC;
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register unsigned long _r1 __asm__(REGISTERS_NAME "1") = data->args[1];
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register unsigned long _r2 __asm__(REGISTERS_NAME "2") = data->args[2];
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register unsigned long _r3 __asm__(REGISTERS_NAME "3") = data->args[3];
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register unsigned long _r4 __asm__(REGISTERS_NAME "4") = data->args[4];
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register unsigned long _r5 __asm__(REGISTERS_NAME "5") = data->args[5];
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register unsigned long _r6 __asm__(REGISTERS_NAME "6") = data->args[6];
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__asm__ __volatile("sub sp, sp, #16\n"
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"str %0, [sp]\n" : : "r" (data));
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__asm__ __volatile__(ARCH_EXTENSION SMC(0): "+r"(_r0) , "+r" (_r1) , "+r" (_r2),
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"+r" (_r3), "+r" (_r4), "+r" (_r5), "+r" (_r6) : : "memory");
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__asm__ __volatile("ldr %0, [sp]\n"
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"add sp, sp, #16\n" : : "r" (data));
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data->args[0] = (uint32_t)_r0;
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data->args[1] = (uint32_t)_r1;
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data->args[2] = (uint32_t)_r2;
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data->args[3] = (uint32_t)_r3;
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return 0;
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}
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uint32_t __weak tzdev_platform_get_sysconf_flags(void)
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{
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return 0;
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}
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