| /* |
| * Copyright (c) 2015, Freescale Semiconductor, Inc. |
| * Copyright 2016-2017 NXP |
| * All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include "fsl_dmamux.h" |
| |
| /******************************************************************************* |
| * Definitions |
| ******************************************************************************/ |
| |
| /******************************************************************************* |
| * Prototypes |
| ******************************************************************************/ |
| |
| /*! |
| * @brief Get instance number for DMAMUX. |
| * |
| * @param base DMAMUX peripheral base address. |
| */ |
| static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base); |
| |
| /******************************************************************************* |
| * Variables |
| ******************************************************************************/ |
| |
| /*! @brief Array to map DMAMUX instance number to base pointer. */ |
| static DMAMUX_Type *const s_dmamuxBases[] = DMAMUX_BASE_PTRS; |
| |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| /*! @brief Array to map DMAMUX instance number to clock name. */ |
| static const clock_ip_name_t s_dmamuxClockName[] = DMAMUX_CLOCKS; |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base) |
| { |
| uint32_t instance; |
| |
| /* Find the instance index from base address mappings. */ |
| for (instance = 0; instance < ARRAY_SIZE(s_dmamuxBases); instance++) |
| { |
| if (s_dmamuxBases[instance] == base) |
| { |
| break; |
| } |
| } |
| |
| assert(instance < ARRAY_SIZE(s_dmamuxBases)); |
| |
| return instance; |
| } |
| |
| void DMAMUX_Init(DMAMUX_Type *base) |
| { |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| CLOCK_EnableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]); |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| } |
| |
| void DMAMUX_Deinit(DMAMUX_Type *base) |
| { |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| CLOCK_DisableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]); |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| } |