139 lines
2.9 KiB
C
139 lines
2.9 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef __MCU_DA1469X_CLOCK_H_
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#define __MCU_DA1469X_CLOCK_H_
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#include <stdint.h>
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#include "mcu/da1469x_hal.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Initialize XTAL32M
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*/
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void da1469x_clock_sys_xtal32m_init(void);
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/**
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* Enable XTAL32M
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*/
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void da1469x_clock_sys_xtal32m_enable(void);
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/**
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* Wait for XTAL32M to settle
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*/
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void da1469x_clock_sys_xtal32m_wait_to_settle(void);
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/**
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* Switch sys_clk to XTAL32M
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*
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* Caller shall ensure that XTAL32M is already settled.
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*/
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void da1469x_clock_sys_xtal32m_switch(void);
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/**
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* Switch sys_clk to XTAL32M
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*
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* Waits for XTAL32M to settle before switching.
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*/
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void da1469x_clock_sys_xtal32m_switch_safe(void);
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/**
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* Disable RC32M
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*/
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void da1469x_clock_sys_rc32m_disable(void);
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/**
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* Enable AMBA clock(s)
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*
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* @param mask
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*/
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static inline void
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da1469x_clock_amba_enable(uint32_t mask)
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{
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uint32_t primask;
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__HAL_DISABLE_INTERRUPTS(primask);
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CRG_TOP->CLK_AMBA_REG |= mask;
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__HAL_ENABLE_INTERRUPTS(primask);
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}
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/**
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* Disable AMBA clock(s)
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*
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* @param uint32_t mask
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*/
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static inline void
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da1469x_clock_amba_disable(uint32_t mask)
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{
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uint32_t primask;
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__HAL_DISABLE_INTERRUPTS(primask);
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CRG_TOP->CLK_AMBA_REG &= ~mask;
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__HAL_ENABLE_INTERRUPTS(primask);
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}
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/**
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* Enable PLL96
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*/
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static inline void
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da1469x_clock_sys_pll_enable(void)
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{
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CRG_XTAL->PLL_SYS_CTRL1_REG |= CRG_XTAL_PLL_SYS_CTRL1_REG_PLL_EN_Msk |
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CRG_XTAL_PLL_SYS_CTRL1_REG_LDO_PLL_ENABLE_Msk;
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}
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/**
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* Disable PLL96
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*
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* If PLL was used as SYS_CLOCK switches to XTAL32M.
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*/
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void da1469x_clock_sys_pll_disable(void);
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/**
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* Checks whether PLL96 is locked and can be use as system clock or USB clock
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*
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* @return 0 if PLL is off, non-0 it its running
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*/
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static inline int
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da1469x_clock_is_pll_locked(void)
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{
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return 0 != (CRG_XTAL->PLL_SYS_STATUS_REG & CRG_XTAL_PLL_SYS_STATUS_REG_PLL_LOCK_FINE_Msk);
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}
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/**
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* Waits for PLL96 to lock.
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*/
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void da1469x_clock_pll_wait_to_lock(void);
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/**
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* Switches system clock to PLL96
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*
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* Caller shall ensure that PLL is already locked.
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*/
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void da1469x_clock_sys_pll_switch(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __MCU_DA1469X_CLOCK_H_ */
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