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rt-thread-official/bsp/lpc54114-lite/Libraries/devices/LPC54114/drivers/fsl_flexcomm.c

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