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83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
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* Copyright (C) 2020 Locha Inc
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_cc26xx_cc13xx
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* @{
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*
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* @file
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* @brief Power management abstractions
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*
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* @author Jean Pierre Dudey <jeandudey@hotmail.com>
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*
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* @}
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*/
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#include "cpu.h"
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#define DOMAIN_ON (1)
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bool power_is_domain_enabled(const power_domain_t domain)
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{
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switch (domain) {
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case POWER_DOMAIN_PERIPHERALS:
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return PRCM->PDSTAT0PERIPH == DOMAIN_ON;
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case POWER_DOMAIN_SERIAL:
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return PRCM->PDSTAT0SERIAL == DOMAIN_ON;
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case POWER_DOMAIN_RFC:
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/* At least one of the registers need to indicate that the power
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* domain is on */
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return (PRCM->PDSTAT1RFC == DOMAIN_ON) ||
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(PRCM->PDSTAT0RFC == DOMAIN_ON);
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case POWER_DOMAIN_VIMS:
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return PRCM->PDSTAT1VIMS == DOMAIN_ON;
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case POWER_DOMAIN_CPU:
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return PRCM->PDSTAT1CPU == DOMAIN_ON;
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default:
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return false;
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}
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return false;
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}
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void power_enable_domain(const power_domain_t domain)
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{
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switch (domain) {
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case POWER_DOMAIN_PERIPHERALS:
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PRCM->PDCTL0PERIPH = DOMAIN_ON;
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break;
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case POWER_DOMAIN_SERIAL:
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PRCM->PDCTL0SERIAL = DOMAIN_ON;
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break;
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case POWER_DOMAIN_RFC:
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/* On CC26x0 MCUs PDCTL1RFC needs to be written too in order to
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* enable the RF Core power domain. On `cc13x2_cc26x2` it's not
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* necessary and domain is powered normally. */
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PRCM->PDCTL0RFC = DOMAIN_ON;
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PRCM->PDCTL1RFC = DOMAIN_ON;
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break;
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case POWER_DOMAIN_CPU:
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PRCM->PDCTL1CPU = DOMAIN_ON;
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break;
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case POWER_DOMAIN_VIMS:
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PRCM->PDCTL1VIMS = DOMAIN_ON;
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break;
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}
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while (!power_is_domain_enabled(domain)) {}
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}
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