diff options
Diffstat (limited to 'bsps/arm/imxrt/include/fsl_dmamux.h')
-rw-r--r-- | bsps/arm/imxrt/include/fsl_dmamux.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/bsps/arm/imxrt/include/fsl_dmamux.h b/bsps/arm/imxrt/include/fsl_dmamux.h new file mode 100644 index 0000000000..de0c21bcf2 --- /dev/null +++ b/bsps/arm/imxrt/include/fsl_dmamux.h @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2017 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_DMAMUX_H_ +#define _FSL_DMAMUX_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup dmamux + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief DMAMUX driver version 2.0.4. */ +#define FSL_DMAMUX_DRIVER_VERSION (MAKE_VERSION(2, 0, 4)) +/*@}*/ + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @name DMAMUX Initialization and de-initialization + * @{ + */ + +/*! + * @brief Initializes the DMAMUX peripheral. + * + * This function ungates the DMAMUX clock. + * + * @param base DMAMUX peripheral base address. + * + */ +void DMAMUX_Init(DMAMUX_Type *base); + +/*! + * @brief Deinitializes the DMAMUX peripheral. + * + * This function gates the DMAMUX clock. + * + * @param base DMAMUX peripheral base address. + */ +void DMAMUX_Deinit(DMAMUX_Type *base); + +/* @} */ +/*! + * @name DMAMUX Channel Operation + * @{ + */ + +/*! + * @brief Enables the DMAMUX channel. + * + * This function enables the DMAMUX channel. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_EnableChannel(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < (uint32_t)FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] |= DMAMUX_CHCFG_ENBL_MASK; +} + +/*! + * @brief Disables the DMAMUX channel. + * + * This function disables the DMAMUX channel. + * + * @note The user must disable the DMAMUX channel before configuring it. + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_DisableChannel(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < (uint32_t)FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] &= ~(uint8_t)DMAMUX_CHCFG_ENBL_MASK; +} + +/*! + * @brief Configures the DMAMUX channel source. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + * @param source Channel source, which is used to trigger the DMA transfer. + */ +static inline void DMAMUX_SetSource(DMAMUX_Type *base, uint32_t channel, uint32_t source) +{ + assert(channel < (uint32_t)FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] = (uint8_t)((base->CHCFG[channel] & ~DMAMUX_CHCFG_SOURCE_MASK) | DMAMUX_CHCFG_SOURCE(source)); +} + +#if defined(FSL_FEATURE_DMAMUX_HAS_TRIG) && FSL_FEATURE_DMAMUX_HAS_TRIG > 0U +/*! + * @brief Enables the DMAMUX period trigger. + * + * This function enables the DMAMUX period trigger feature. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_EnablePeriodTrigger(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < (uint32_t)FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] |= DMAMUX_CHCFG_TRIG_MASK; +} + +/*! + * @brief Disables the DMAMUX period trigger. + * + * This function disables the DMAMUX period trigger. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_DisablePeriodTrigger(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < (uint32_t)FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] &= ~(uint8_t)DMAMUX_CHCFG_TRIG_MASK; +} +#endif /* FSL_FEATURE_DMAMUX_HAS_TRIG */ + +#if (defined(FSL_FEATURE_DMAMUX_HAS_A_ON) && FSL_FEATURE_DMAMUX_HAS_A_ON) +/*! + * @brief Enables the DMA channel to be always ON. + * + * This function enables the DMAMUX channel always ON feature. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + * @param enable Switcher of the always ON feature. "true" means enabled, "false" means disabled. + */ +static inline void DMAMUX_EnableAlwaysOn(DMAMUX_Type *base, uint32_t channel, bool enable) +{ + assert(channel < (uint32_t)FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + if (enable) + { + base->CHCFG[channel] |= DMAMUX_CHCFG_A_ON_MASK; + } + else + { + base->CHCFG[channel] &= ~DMAMUX_CHCFG_A_ON_MASK; + } +} +#endif /* FSL_FEATURE_DMAMUX_HAS_A_ON */ + +/* @} */ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/* @} */ + +#endif /* _FSL_DMAMUX_H_ */ |