view libpwon/etmoff.c @ 963:b515a97e5dff

sms-pdu-decode family: fix VP-Relative header spacing When VP-Relative is small enough to be reckoned in 5 min or 30 min units, it was printed incorrectly, with a cosmetic defect of one extra space. Fix this bug.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 28 Aug 2023 03:52:53 +0000
parents ab54957dbe35
children
line wrap: on
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/*
 * This libpwon module implements -Petmoff mode: set the baud rate to 115200
 * and send out ETM command doing Iota poweroff, triggering a VRPC reboot cycle
 * on the USB-charging phone.  The "wakeup shot" logic is a copy of what we do
 * in rvinterf.
 */

#include <sys/types.h>
#include <unistd.h>

extern int target_fd;

static u_char wakeup_shot[64];
static u_char etm_devoff_pkt[9] =
		{0x02, 0x14, 0x01, 0x67, 0x1E, 0x01, 0x00, 0x79, 0x02};

void
bootctrl_do_etmoff()
{
	set_fixed_baudrate("115200");
	set_serial_nonblock(0);
	write(target_fd, wakeup_shot, sizeof wakeup_shot);
	usleep(100000);
	write(target_fd, etm_devoff_pkt, sizeof etm_devoff_pkt);
}