mbed-os/targets/TARGET_Maxim/TARGET_MAX32670/sleep.c

94 lines
3.0 KiB
C

/*******************************************************************************
* Copyright (C) 2022 Maxim Integrated Products, Inc., All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Maxim Integrated
* Products, Inc. shall not be used except as stated in the Maxim Integrated
* Products, Inc. Branding Policy.
*
* The mere transfer of this software does not imply any licenses
* of trade secrets, proprietary technology, copyrights, patents,
* trademarks, maskwork rights, or any other form of intellectual
* property whatsoever. Maxim Integrated Products, Inc. retains all
* ownership rights.
*******************************************************************************
*/
#include <stdio.h>
#include "sleep_api.h"
#include "lp.h"
#include "uart.h"
#include "tmr.h"
#include "tmr_revb.h"
#if 0
static void prep_for_sleep(void)
{
while(MXC_UART_ReadyForSleep(MXC_UART0) != E_NO_ERROR) {
;
}
while(MXC_UART_ReadyForSleep(MXC_UART1) != E_NO_ERROR) {
;
}
while(MXC_UART_ReadyForSleep(MXC_UART2) != E_NO_ERROR) {
;
}
while(MXC_UART_ReadyForSleep(MXC_UART3) != E_NO_ERROR) {
;
}
}
#else
#define prep_for_sleep()
#endif
//******************************************************************************
void hal_sleep(void)
{
prep_for_sleep();
/* Switch to sleep mode */
MXC_LP_EnterSleepMode();
}
void hal_deepsleep(void)
{
prep_for_sleep();
mxc_tmr_regs_t *tmr;
#if MBED_CONF_TARGET_US_TICKER_TIMER == 0
tmr = MXC_TMR0;
#elif MBED_CONF_TARGET_US_TICKER_TIMER == 1
tmr = MXC_TMR1;
#elif MBED_CONF_TARGET_US_TICKER_TIMER == 2
tmr = MXC_TMR2;
#elif MBED_CONF_TARGET_US_TICKER_TIMER == 3
tmr = MXC_TMR3;
#endif
tmr->ctrl0 &= ~MXC_F_TMR_REVB_CTRL0_EN_A;
MXC_LP_FastWakeupEnable();
MXC_LP_EnterDeepSleepMode();
tmr->ctrl0 |= MXC_F_TMR_REVB_CTRL0_EN_A;
while(!(tmr->ctrl1 & MXC_F_TMR_REVB_CTRL1_CLKEN_A));
}