100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2018 naehrwert
|
|
* Copyright (C) 2018 CTCaer
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "util.h"
|
|
#include "../soc/t210.h"
|
|
|
|
u32 get_tmr_s()
|
|
{
|
|
return RTC(APBDEV_RTC_SECONDS);
|
|
}
|
|
|
|
u32 get_tmr_ms()
|
|
{
|
|
// The registers must be read with the following order:
|
|
// -> RTC_MILLI_SECONDS (0x10) -> RTC_SHADOW_SECONDS (0xC)
|
|
return (RTC(APBDEV_RTC_MILLI_SECONDS) | (RTC(APBDEV_RTC_SHADOW_SECONDS) << 10));
|
|
}
|
|
|
|
u32 get_tmr_us()
|
|
{
|
|
return TMR(TIMERUS_CNTR_1US); //TIMERUS_CNTR_1US
|
|
}
|
|
|
|
void msleep(u32 milliseconds)
|
|
{
|
|
u32 start = RTC(APBDEV_RTC_MILLI_SECONDS) | (RTC(APBDEV_RTC_SHADOW_SECONDS) << 10);
|
|
while (((RTC(APBDEV_RTC_MILLI_SECONDS) | (RTC(APBDEV_RTC_SHADOW_SECONDS) << 10)) - start) <= milliseconds)
|
|
;
|
|
}
|
|
|
|
void usleep(u32 microseconds)
|
|
{
|
|
u32 start = TMR(TIMERUS_CNTR_1US);
|
|
// Casting to u32 is important!
|
|
while ((u32)(TMR(TIMERUS_CNTR_1US) - start) <= microseconds)
|
|
;
|
|
}
|
|
|
|
void exec_cfg(u32 *base, const cfg_op_t *ops, u32 num_ops)
|
|
{
|
|
for(u32 i = 0; i < num_ops; i++)
|
|
base[ops[i].off] = ops[i].val;
|
|
}
|
|
|
|
#define CRC32C_POLY 0x82F63B78
|
|
u32 crc32c(const void *buf, u32 len)
|
|
{
|
|
const u8 *cbuf = (const u8 *)buf;
|
|
u32 crc = 0xFFFFFFFF;
|
|
while (len--)
|
|
{
|
|
crc ^= *cbuf++;
|
|
for (int i = 0; i < 8; i++)
|
|
crc = crc & 1 ? (crc >> 1) ^ CRC32C_POLY : crc >> 1;
|
|
}
|
|
return ~crc;
|
|
}
|
|
|
|
u32 memcmp32sparse(const u32 *buf1, const u32 *buf2, u32 len)
|
|
{
|
|
u32 len32 = len / 4;
|
|
|
|
if (!(len32 % 32))
|
|
{
|
|
while (len32)
|
|
{
|
|
len32 -= 32;
|
|
if(buf1[len32] != buf2[len32])
|
|
return 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (len32)
|
|
{
|
|
len32 -= 32;
|
|
if(buf1[len32] != buf2[len32])
|
|
return 1;
|
|
if (len32 < 32)
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|