314 lines
10 KiB
C
314 lines
10 KiB
C
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/*
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* The Clear BSD License
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* Copyright (c) 2016, Freescale Semiconductor, Inc.
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* Copyright 2016-2017 NXP
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted (subject to the limitations in the disclaimer below) provided
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* that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "fsl_common.h"
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#include "fsl_flexcomm.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/* Component ID definition, used by tools. */
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#ifndef FSL_COMPONENT_ID
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#define FSL_COMPONENT_ID "platform.drivers.flexcomm"
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#endif
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*! @brief Set the FLEXCOMM mode . */
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static status_t FLEXCOMM_SetPeriph(FLEXCOMM_Type *base, FLEXCOMM_PERIPH_T periph, int lock);
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/*! @brief check whether flexcomm supports peripheral type */
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static bool FLEXCOMM_PeripheralIsPresent(FLEXCOMM_Type *base, FLEXCOMM_PERIPH_T periph);
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/*******************************************************************************
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* Variables
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******************************************************************************/
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/*! @brief Pointers to real IRQ handlers installed by drivers for each instance. */
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static flexcomm_irq_handler_t s_flexcommIrqHandler[FSL_FEATURE_SOC_FLEXCOMM_COUNT];
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/*! @brief Pointers to handles for each instance to provide context to interrupt routines */
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static void *s_flexcommHandle[FSL_FEATURE_SOC_FLEXCOMM_COUNT];
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/*! @brief Array to map FLEXCOMM instance number to IRQ number. */
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IRQn_Type const kFlexcommIrqs[] = FLEXCOMM_IRQS;
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/*! @brief Array to map FLEXCOMM instance number to base address. */
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static const uint32_t s_flexcommBaseAddrs[FSL_FEATURE_SOC_FLEXCOMM_COUNT] = FLEXCOMM_BASE_ADDRS;
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#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
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/*! @brief IDs of clock for each FLEXCOMM module */
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static const clock_ip_name_t s_flexcommClocks[] = FLEXCOMM_CLOCKS;
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#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
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/*******************************************************************************
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* Code
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******************************************************************************/
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/* check whether flexcomm supports peripheral type */
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static bool FLEXCOMM_PeripheralIsPresent(FLEXCOMM_Type *base, FLEXCOMM_PERIPH_T periph)
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{
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if (periph == FLEXCOMM_PERIPH_NONE)
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{
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return true;
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}
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else if (periph <= FLEXCOMM_PERIPH_I2S_TX)
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{
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return (base->PSELID & (uint32_t)(1 << ((uint32_t)periph + 3))) > (uint32_t)0 ? true : false;
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}
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else if (periph == FLEXCOMM_PERIPH_I2S_RX)
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{
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return (base->PSELID & (1 << 7)) > (uint32_t)0 ? true : false;
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}
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else
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{
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return false;
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}
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}
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/* Get the index corresponding to the FLEXCOMM */
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uint32_t FLEXCOMM_GetInstance(void *base)
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{
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int i;
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for (i = 0; i < FSL_FEATURE_SOC_FLEXCOMM_COUNT; i++)
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{
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if ((uint32_t)base == s_flexcommBaseAddrs[i])
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{
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return i;
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}
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}
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assert(false);
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return 0;
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}
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/* Changes FLEXCOMM mode */
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static status_t FLEXCOMM_SetPeriph(FLEXCOMM_Type *base, FLEXCOMM_PERIPH_T periph, int lock)
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{
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/* Check whether peripheral type is present */
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if (!FLEXCOMM_PeripheralIsPresent(base, periph))
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{
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return kStatus_OutOfRange;
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}
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/* Flexcomm is locked to different peripheral type than expected */
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if ((base->PSELID & FLEXCOMM_PSELID_LOCK_MASK) && ((base->PSELID & FLEXCOMM_PSELID_PERSEL_MASK) != periph))
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{
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return kStatus_Fail;
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}
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/* Check if we are asked to lock */
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if (lock)
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{
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base->PSELID = (uint32_t)periph | FLEXCOMM_PSELID_LOCK_MASK;
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}
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else
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{
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base->PSELID = (uint32_t)periph;
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}
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return kStatus_Success;
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}
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status_t FLEXCOMM_Init(void *base, FLEXCOMM_PERIPH_T periph)
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{
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int idx = FLEXCOMM_GetInstance(base);
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if (idx < 0)
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{
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return kStatus_InvalidArgument;
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}
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#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
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/* Enable the peripheral clock */
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CLOCK_EnableClock(s_flexcommClocks[idx]);
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#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
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/* Set the FLEXCOMM to given peripheral */
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return FLEXCOMM_SetPeriph((FLEXCOMM_Type *)base, periph, 0);
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}
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void FLEXCOMM_SetIRQHandler(void *base, flexcomm_irq_handler_t handler, void *handle)
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{
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uint32_t instance;
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/* Look up instance number */
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instance = FLEXCOMM_GetInstance(base);
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/* Clear handler first to avoid execution of the handler with wrong handle */
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s_flexcommIrqHandler[instance] = NULL;
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s_flexcommHandle[instance] = handle;
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s_flexcommIrqHandler[instance] = handler;
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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/* IRQ handler functions overloading weak symbols in the startup */
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#if defined(FLEXCOMM0)
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void FLEXCOMM0_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[0]);
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s_flexcommIrqHandler[0]((void *)s_flexcommBaseAddrs[0], s_flexcommHandle[0]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM1)
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void FLEXCOMM1_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[1]);
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s_flexcommIrqHandler[1]((void *)s_flexcommBaseAddrs[1], s_flexcommHandle[1]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM2)
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void FLEXCOMM2_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[2]);
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s_flexcommIrqHandler[2]((void *)s_flexcommBaseAddrs[2], s_flexcommHandle[2]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM3)
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void FLEXCOMM3_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[3]);
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s_flexcommIrqHandler[3]((void *)s_flexcommBaseAddrs[3], s_flexcommHandle[3]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM4)
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void FLEXCOMM4_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[4]);
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s_flexcommIrqHandler[4]((void *)s_flexcommBaseAddrs[4], s_flexcommHandle[4]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM5)
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void FLEXCOMM5_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[5]);
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s_flexcommIrqHandler[5]((void *)s_flexcommBaseAddrs[5], s_flexcommHandle[5]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM6)
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void FLEXCOMM6_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[6]);
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s_flexcommIrqHandler[6]((void *)s_flexcommBaseAddrs[6], s_flexcommHandle[6]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM7)
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void FLEXCOMM7_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[7]);
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s_flexcommIrqHandler[7]((void *)s_flexcommBaseAddrs[7], s_flexcommHandle[7]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM8)
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void FLEXCOMM8_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[8]);
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s_flexcommIrqHandler[8]((void *)s_flexcommBaseAddrs[8], s_flexcommHandle[8]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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#if defined(FLEXCOMM9)
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void FLEXCOMM9_DriverIRQHandler(void)
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{
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assert(s_flexcommIrqHandler[9]);
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s_flexcommIrqHandler[9]((void *)s_flexcommBaseAddrs[9], s_flexcommHandle[9]);
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/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
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exception return operation might vector to incorrect interrupt */
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#if defined __CORTEX_M && (__CORTEX_M == 4U)
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__DSB();
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#endif
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}
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#endif
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