62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
|
|
/*
|
|
* common/cmd_forceupdate.c
|
|
*
|
|
* Copyright (C) 2020 Amlogic, Inc. All rights reserved.
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <errno.h>
|
|
#include <environment.h>
|
|
#include <asm/saradc.h>
|
|
|
|
#ifndef CONFIG_SARADC_CH
|
|
#define CONFIG_SARADC_CH 2
|
|
#endif
|
|
|
|
inline int get_source_key(int channel)
|
|
{
|
|
int adc_chan = channel;
|
|
int adc_val = get_adc_sample_gxbb(adc_chan);
|
|
//printf("get_source_key (%d) at channel (%d)\n", adc_val,adc_chan);
|
|
return adc_val;
|
|
}
|
|
|
|
static void check_auto_update(void)
|
|
{
|
|
int source_key_value = -1;
|
|
int times=40;
|
|
while (times--) {
|
|
udelay(100000);
|
|
source_key_value = get_source_key(CONFIG_SARADC_CH);
|
|
if ((source_key_value >= 0) && (source_key_value < 40)) {
|
|
//printk("press update key!\n");
|
|
} else {
|
|
return ;
|
|
}
|
|
}
|
|
|
|
printf("press update key!\n");
|
|
run_command ("run update", 0);
|
|
}
|
|
|
|
static void press_key_into_update(void)
|
|
{
|
|
saradc_enable();
|
|
check_auto_update();
|
|
//saradc_disable();
|
|
}
|
|
|
|
static int do_forceupdate(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
press_key_into_update();
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
forceupdate, 1, 1, do_forceupdate,
|
|
"forceupdate",
|
|
"forceupdate - press adc key before power on\n"
|
|
);
|