mirror of
https://github.com/CTCaer/hekate.git
synced 2024-11-27 03:52:23 +00:00
310 lines
7 KiB
C
310 lines
7 KiB
C
/*
|
|
* Copyright (c) 2018 naehrwert
|
|
* Copyright (c) 2018-2022 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 <string.h>
|
|
|
|
#include <mem/heap.h>
|
|
#include <power/max77620.h>
|
|
#include <rtc/max77620-rtc.h>
|
|
#include <soc/bpmp.h>
|
|
#include <soc/hw_init.h>
|
|
#include <soc/i2c.h>
|
|
#include <soc/pmc.h>
|
|
#include <soc/timer.h>
|
|
#include <soc/t210.h>
|
|
#include <storage/sd.h>
|
|
#include <utils/util.h>
|
|
|
|
#define USE_RTC_TIMER
|
|
|
|
u8 bit_count(u32 val)
|
|
{
|
|
u8 cnt = 0;
|
|
for (u32 i = 0; i < 32; i++)
|
|
{
|
|
if ((val >> i) & 1)
|
|
cnt++;
|
|
}
|
|
|
|
return cnt;
|
|
}
|
|
|
|
u32 bit_count_mask(u8 bits)
|
|
{
|
|
u32 val = 0;
|
|
for (u32 i = 0; i < bits; i++)
|
|
val |= 1 << i;
|
|
|
|
return val;
|
|
}
|
|
|
|
char *strcpy_ns(char *dst, char *src)
|
|
{
|
|
if (!src || !dst)
|
|
return NULL;
|
|
|
|
// Remove starting space.
|
|
u32 len = strlen(src);
|
|
if (len && src[0] == ' ')
|
|
{
|
|
len--;
|
|
src++;
|
|
}
|
|
|
|
strcpy(dst, src);
|
|
|
|
// Remove trailing space.
|
|
if (len && dst[len - 1] == ' ')
|
|
dst[len - 1] = 0;
|
|
|
|
return dst;
|
|
}
|
|
|
|
// Approximate square root finder for a 64-bit number.
|
|
u64 sqrt64(u64 num)
|
|
{
|
|
u64 base = 0;
|
|
u64 limit = num;
|
|
u64 square_root = 0;
|
|
|
|
while (base <= limit)
|
|
{
|
|
u64 tmp_sqrt = (base + limit) / 2;
|
|
|
|
if (tmp_sqrt * tmp_sqrt == num) {
|
|
square_root = tmp_sqrt;
|
|
break;
|
|
}
|
|
|
|
if (tmp_sqrt * tmp_sqrt < num)
|
|
{
|
|
square_root = base;
|
|
base = tmp_sqrt + 1;
|
|
}
|
|
else
|
|
limit = tmp_sqrt - 1;
|
|
}
|
|
|
|
return square_root;
|
|
}
|
|
|
|
#define TLONG_MAX ((long)(((unsigned long)(~0L)) >> 1))
|
|
#define TLONG_MIN ((long)(~TLONG_MAX))
|
|
#define ISSPACE(ch) ((ch >= '\t' && ch <= '\r') || (ch == ' '))
|
|
#define ISDIGIT(ch) ( ch >= '0' && ch <= '9' )
|
|
#define ISALPHA(ch) ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))
|
|
#define ISUPPER(ch) ( ch >= 'A' && ch <= 'Z' )
|
|
|
|
/*
|
|
* Avoid using reentrant newlib version of strol. It's only used for errno.
|
|
*
|
|
* strol/atoi:
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
*/
|
|
long strtol(const char *nptr, char **endptr, register int base)
|
|
{
|
|
register const char *s = nptr;
|
|
register unsigned long acc;
|
|
register int c;
|
|
register unsigned long cutoff;
|
|
register int neg = 0, any, cutlim;
|
|
|
|
/*
|
|
* Skip white space and pick up leading +/- sign if any.
|
|
* If base is 0, allow 0x for hex and 0 for octal, else
|
|
* assume decimal; if base is already 16, allow 0x.
|
|
*/
|
|
do {
|
|
c = *s++;
|
|
} while (ISSPACE(c));
|
|
if (c == '-') {
|
|
neg = 1;
|
|
c = *s++;
|
|
} else if (c == '+')
|
|
c = *s++;
|
|
if ((base == 0 || base == 16) &&
|
|
c == '0' && (*s == 'x' || *s == 'X')) {
|
|
c = s[1];
|
|
s += 2;
|
|
base = 16;
|
|
}
|
|
if (base == 0)
|
|
base = c == '0' ? 8 : 10;
|
|
|
|
/*
|
|
* Compute the cutoff value between legal numbers and illegal
|
|
* numbers. That is the largest legal value, divided by the
|
|
* base. An input number that is greater than this value, if
|
|
* followed by a legal input character, is too big. One that
|
|
* is equal to this value may be valid or not; the limit
|
|
* between valid and invalid numbers is then based on the last
|
|
* digit. For instance, if the range for longs is
|
|
* [-2147483648..2147483647] and the input base is 10,
|
|
* cutoff will be set to 214748364 and cutlim to either
|
|
* 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
|
|
* a value > 214748364, or equal but the next digit is > 7 (or 8),
|
|
* the number is too big, and we will return a range error.
|
|
*
|
|
* Set any if any `digits' consumed; make it negative to indicate
|
|
* overflow.
|
|
*/
|
|
cutoff = neg ? -(unsigned long)TLONG_MIN : TLONG_MAX;
|
|
cutlim = cutoff % (unsigned long)base;
|
|
cutoff /= (unsigned long)base;
|
|
for (acc = 0, any = 0;; c = *s++) {
|
|
if (ISDIGIT(c))
|
|
c -= '0';
|
|
else if (ISALPHA(c))
|
|
c -= ISUPPER(c) ? 'A' - 10 : 'a' - 10;
|
|
else
|
|
break;
|
|
if (c >= base)
|
|
break;
|
|
if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
|
|
any = -1;
|
|
else {
|
|
any = 1;
|
|
acc *= base;
|
|
acc += c;
|
|
}
|
|
}
|
|
if (any < 0) {
|
|
acc = neg ? TLONG_MIN : TLONG_MAX;
|
|
} else if (neg)
|
|
acc = -acc;
|
|
if (endptr != 0)
|
|
*endptr = (char *) (any ? s - 1 : nptr);
|
|
return (acc);
|
|
}
|
|
|
|
int atoi(const char *nptr)
|
|
{
|
|
return (int)strtol(nptr, (char **)NULL, 10);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
u32 crc32_calc(u32 crc, const u8 *buf, u32 len)
|
|
{
|
|
const u8 *p, *q;
|
|
static u32 *table = NULL;
|
|
|
|
// Calculate CRC table.
|
|
if (!table)
|
|
{
|
|
table = calloc(256, sizeof(u32));
|
|
for (u32 i = 0; i < 256; i++)
|
|
{
|
|
u32 rem = i;
|
|
for (u32 j = 0; j < 8; j++)
|
|
{
|
|
if (rem & 1)
|
|
{
|
|
rem >>= 1;
|
|
rem ^= 0xedb88320;
|
|
}
|
|
else
|
|
rem >>= 1;
|
|
}
|
|
table[i] = rem;
|
|
}
|
|
}
|
|
|
|
crc = ~crc;
|
|
q = buf + len;
|
|
for (p = buf; p < q; p++)
|
|
{
|
|
u8 oct = *p;
|
|
crc = (crc >> 8) ^ table[(crc & 0xff) ^ oct];
|
|
}
|
|
|
|
return ~crc;
|
|
}
|
|
|
|
void panic(u32 val)
|
|
{
|
|
// Set panic code.
|
|
PMC(APBDEV_PMC_SCRATCH200) = val;
|
|
|
|
// Disable SE.
|
|
//PMC(APBDEV_PMC_CRYPTO_OP) = PMC_CRYPTO_OP_SE_DISABLE;
|
|
|
|
// Immediately cause a full system reset.
|
|
watchdog_start(0, TIMER_PMCRESET_EN);
|
|
|
|
while (true);
|
|
}
|
|
|
|
void power_set_state(power_state_t state)
|
|
{
|
|
u8 reg;
|
|
|
|
// Unmount and power down sd card.
|
|
sd_end();
|
|
|
|
// De-initialize and power down various hardware.
|
|
hw_reinit_workaround(false, 0);
|
|
|
|
// Stop the alarm, in case we injected and powered off too fast.
|
|
max77620_rtc_stop_alarm();
|
|
|
|
// Set power state.
|
|
switch (state)
|
|
{
|
|
case REBOOT_RCM:
|
|
PMC(APBDEV_PMC_SCRATCH0) = PMC_SCRATCH0_MODE_RCM; // Enable RCM path.
|
|
PMC(APBDEV_PMC_CNTRL) |= PMC_CNTRL_MAIN_RST; // PMC reset.
|
|
break;
|
|
|
|
case REBOOT_BYPASS_FUSES:
|
|
panic(0x21); // Bypass fuse programming in package1.
|
|
break;
|
|
|
|
case POWER_OFF:
|
|
// Initiate power down sequence and do not generate a reset (regulators retain state after POR).
|
|
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFCNFG1, MAX77620_ONOFFCNFG1_PWR_OFF);
|
|
break;
|
|
|
|
case POWER_OFF_RESET:
|
|
case POWER_OFF_REBOOT:
|
|
default:
|
|
// Enable/Disable soft reset wake event.
|
|
reg = i2c_recv_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFCNFG2);
|
|
if (state == POWER_OFF_RESET) // Do not wake up after power off.
|
|
reg &= ~(MAX77620_ONOFFCNFG2_SFT_RST_WK | MAX77620_ONOFFCNFG2_WK_ALARM1 | MAX77620_ONOFFCNFG2_WK_ALARM2);
|
|
else // POWER_OFF_REBOOT. Wake up after power off.
|
|
reg |= MAX77620_ONOFFCNFG2_SFT_RST_WK;
|
|
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFCNFG2, reg);
|
|
|
|
// Initiate power down sequence and generate a reset (regulators' state resets after POR).
|
|
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFCNFG1, MAX77620_ONOFFCNFG1_SFT_RST);
|
|
break;
|
|
}
|
|
|
|
while (true)
|
|
bpmp_halt();
|
|
}
|
|
|
|
void power_set_state_ex(void *param)
|
|
{
|
|
power_state_t *state = (power_state_t *)param;
|
|
power_set_state(*state);
|
|
}
|