blob: 9321b584ad54431b2db04689c7c32dcd9eef1734 [file] [log] [blame]
/*
* Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <debug.h>
#include <stdarg.h>
#include <stdint.h>
#include <arch_helpers.h>
#include <platform_def.h>
#include <bakery_lock.h>
#include "rcar_def.h"
#include "rcar_private.h"
#include "rcar_printf.h"
#define INDEX_TIMER_COUNT (4U)
extern RCAR_INSTANTIATE_LOCK typedef struct log_head {
uint8_t head[4];
uint32_t index;
uint32_t size;
uint8_t res[4];
} loghead_t;
typedef struct log_map {
loghead_t header;
uint8_t log_data[RCAR_BL31_LOG_MAX];
uint8_t res_data[RCAR_LOG_RES_SIZE];
} logmap_t;
int32_t rcar_set_log_data(int32_t c)
{
logmap_t *t_log;
t_log = (logmap_t *) RCAR_BL31_LOG_BASE;
rcar_lock_get();
/*
* If index is broken, then index and size initialize
*/
if (t_log->header.index >= (uint32_t) RCAR_BL31_LOG_MAX) {
t_log->header.index = 0U;
t_log->header.size = 0U;
}
/*
* data store to log area then index and size renewal
*/
t_log->log_data[t_log->header.index] = (uint8_t) c;
t_log->header.index++;
if (t_log->header.size < t_log->header.index) {
t_log->header.size = t_log->header.index;
}
if (t_log->header.index >= (uint32_t) RCAR_BL31_LOG_MAX) {
t_log->header.index = 0U;
}
rcar_lock_release();
return 1;
}
int32_t rcar_log_init(void)
{
static const uint8_t const_header[] = "TLOG";
logmap_t *t_log;
int16_t init_flag = 0;
t_log = (logmap_t *) RCAR_BL31_LOG_BASE;
if (memcmp
((const void *)t_log->header.head, (const void *)const_header,
sizeof(t_log->header.head)) != 0) {
/*
* Log header is not "TLOG", then log area initialize
*/
init_flag = 1;
}
if (t_log->header.index >= (uint32_t) RCAR_BL31_LOG_MAX) {
/*
* index is broken, then log area initialize
*/
init_flag = 1;
}
if (init_flag == 1) {
(void)memset((void *)t_log->log_data, 0,
(size_t) RCAR_BL31_LOG_MAX);
(void)memcpy((void *)t_log->header.head,
(const void *)const_header,
sizeof(t_log->header.head));
t_log->header.index = 0U;
t_log->header.size = 0U;
#ifndef IMAGE_BL2
rcar_stack_generic_timer[INDEX_TIMER_COUNT] = 0U;
#endif
}
rcar_lock_init();
return 1;
}