71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
/*
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* Copyright (c) 2016 Piotr Mienkowski
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* SPDX-License-Identifier: Apache-2.0
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*/
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/** @file
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* @brief Atmel SAM MCU family Power Management Controller (PMC) module
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* HAL driver.
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*/
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#include <soc.h>
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#include <sys/__assert.h>
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#include <sys/util.h>
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#if ID_PERIPH_COUNT > 74
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#error "Unsupported SoC, update soc_pmc.c functions"
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#endif
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void soc_pmc_peripheral_enable(u32_t id)
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{
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__ASSERT(id < ID_PERIPH_COUNT, "Invalid peripheral id");
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if (id < 32) {
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PMC->PMC_PCER0 = BIT(id);
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#if ID_PERIPH_COUNT > 32
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} else if (id < 64) {
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PMC->PMC_PCER1 = BIT(id & 0x1F);
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#endif
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#if ID_PERIPH_COUNT > 64
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} else {
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/* Nothing to do, thes peripherals can't be enabled */
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#endif
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}
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}
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void soc_pmc_peripheral_disable(u32_t id)
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{
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__ASSERT(id < ID_PERIPH_COUNT, "Invalid peripheral id");
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if (id < 32) {
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PMC->PMC_PCDR0 = BIT(id);
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#if ID_PERIPH_COUNT > 32
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} else if (id < 64) {
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PMC->PMC_PCDR1 = BIT(id & 0x1F);
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#endif
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#if ID_PERIPH_COUNT > 64
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} else {
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/* Nothing to do, these peripherals can't be disabled */
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#endif
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}
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}
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u32_t soc_pmc_peripheral_is_enabled(u32_t id)
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{
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__ASSERT(id < ID_PERIPH_COUNT, "Invalid peripheral id");
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if (id < 32) {
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return (PMC->PMC_PCSR0 & BIT(id)) != 0;
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#if ID_PERIPH_COUNT > 32
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} else if (id < 64) {
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return (PMC->PMC_PCSR1 & BIT(id & 0x1F)) != 0;
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#endif
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#if ID_PERIPH_COUNT > 64
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} else {
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/* These peripherals are always enabled */
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return 1;
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#endif
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}
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return 0;
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}
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