diff options
Diffstat (limited to 'bsps/arm/imxrt/mcux-sdk/drivers/dac12/fsl_dac12.c')
| -rw-r--r-- | bsps/arm/imxrt/mcux-sdk/drivers/dac12/fsl_dac12.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/bsps/arm/imxrt/mcux-sdk/drivers/dac12/fsl_dac12.c b/bsps/arm/imxrt/mcux-sdk/drivers/dac12/fsl_dac12.c new file mode 100644 index 0000000000..1381faa047 --- /dev/null +++ b/bsps/arm/imxrt/mcux-sdk/drivers/dac12/fsl_dac12.c @@ -0,0 +1,200 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_dac12.h" + +/* Component ID definition, used by tools. */ +#ifndef FSL_COMPONENT_ID +#define FSL_COMPONENT_ID "platform.drivers.dac12" +#endif + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get instance number for DAC12 module. + * + * @param base DAC12 peripheral base address + */ +static uint32_t DAC12_GetInstance(DAC_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to DAC bases for each instance. */ +static DAC_Type *const s_dac12Bases[] = DAC_BASE_PTRS; +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) +/*! @brief Pointers to DAC clocks for each instance. */ +static const clock_ip_name_t s_dac12Clocks[] = DAC_CLOCKS; +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ + +/******************************************************************************* + * Codes + ******************************************************************************/ +static uint32_t DAC12_GetInstance(DAC_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < ARRAY_SIZE(s_dac12Bases); instance++) + { + if (s_dac12Bases[instance] == base) + { + break; + } + } + + assert(instance < ARRAY_SIZE(s_dac12Bases)); + + return instance; +} + +/*! + * brief Get hardware information about this module. + * + * param base DAC12 peripheral base address. + * param info Pointer to info structure, see to #dac12_hardware_info_t. + */ +void DAC12_GetHardwareInfo(DAC_Type *base, dac12_hardware_info_t *info) +{ + assert(NULL != info); + + info->fifoSizeInfo = + (dac12_fifo_size_info_t)(uint32_t)((DAC_PARAM_FIFOSZ_MASK & base->PARAM) >> DAC_PARAM_FIFOSZ_SHIFT); +} + +/*! + * brief Initialize the DAC12 module. + * + * param base DAC12 peripheral base address. + * param config Pointer to configuration structure, see to #dac12_config_t. + */ +void DAC12_Init(DAC_Type *base, const dac12_config_t *config) +{ + assert(NULL != config); + + uint32_t tmp32; + +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + /* Enable the clock. */ + CLOCK_EnableClock(s_dac12Clocks[DAC12_GetInstance(base)]); +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ + + tmp32 = DAC_CR_WML(config->fifoWatermarkLevel); /* FIFO watermark level. */ + switch (config->fifoWorkMode) /* FIFO work mode. */ + { + case kDAC12_FIFOWorkAsNormalMode: + tmp32 |= DAC_CR_FIFOEN_MASK; + break; + case kDAC12_FIFOWorkAsSwingMode: + tmp32 |= DAC_CR_FIFOEN_MASK | DAC_CR_SWMD_MASK; + break; + default: /* kDAC12_FIFODisabled. */ + break; + } + + tmp32 |= DAC_CR_DACRFS(config->referenceVoltageSource) /* Reference voltage source. */ + | DAC_CR_TRGSEL(config->fifoTriggerMode); /* Trigger mode. */ + + base->CR = tmp32; + + /* DACx_CR2. */ + tmp32 = 0U; + /* Reference voltage current. */ + switch (config->referenceCurrentSource) + { + case kDAC12_ReferenceCurrentSourceAlt0: + tmp32 |= DAC_CR2_IREF_MASK; + break; + case kDAC12_ReferenceCurrentSourceAlt1: + tmp32 |= DAC_CR2_IREF1_MASK; + break; + case kDAC12_ReferenceCurrentSourceAlt2: + tmp32 |= DAC_CR2_IREF2_MASK; + break; + default: /* kDAC12_ReferenceCurrentSourceDisabled */ + break; + } + + /* Speed mode. */ + switch (config->speedMode) + { + case kDAC12_SpeedMiddleMode: + tmp32 |= DAC_CR2_BFMS_MASK; + break; + case kDAC12_SpeedHighMode: + tmp32 |= DAC_CR2_BFHS_MASK; + break; + default: /* kDAC12_SpeedLowMode */ + break; + } + + /* DAC buffered mode needs OPAMP enabled. DAC unbuffered mode needs OPAMP disabled. */ + if (config->enableAnalogBuffer) + { + tmp32 |= DAC_CR2_BFEN_MASK; /* OPAMP is used as buffer. */ + } + else + { + tmp32 |= DAC_CR2_OEN_MASK; /* Output buffer is bypassed. */ + } + base->CR2 = tmp32; + +#if !(defined(FSL_FEATURE_DAC12_HAS_NO_ITRM_REGISTER) && FSL_FEATURE_DAC12_HAS_NO_ITRM_REGISTER) + base->ITRM = DAC_ITRM_TRIM(config->currentReferenceInternalTrimValue); +#endif /* FSL_FEATURE_DAC12_HAS_NO_ITRM_REGISTER */ +} + +/*! + * brief De-initialize the DAC12 module. + * + * param base DAC12 peripheral base address. + */ +void DAC12_Deinit(DAC_Type *base) +{ + DAC12_Enable(base, false); +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + CLOCK_DisableClock(s_dac12Clocks[DAC12_GetInstance(base)]); +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ +} + +/*! + * brief Initializes the DAC12 user configuration structure. + * + * This function initializes the user configuration structure to a default value. The default values are: + * code + * config->fifoWatermarkLevel = 0U; + * config->fifoWorkMode = kDAC12_FIFODisabled; + * config->referenceVoltageSource = kDAC12_ReferenceVoltageSourceAlt1; + * config->fifoTriggerMode = kDAC12_FIFOTriggerByHardwareMode; + * config->referenceCurrentSource = kDAC12_ReferenceCurrentSourceAlt0; + * config->speedMode = kDAC12_SpeedLowMode; + * config->speedMode = false; + * config->currentReferenceInternalTrimValue = 0x4; + * endcode + * param config Pointer to the configuration structure. See "dac12_config_t". + */ +void DAC12_GetDefaultConfig(dac12_config_t *config) +{ + assert(NULL != config); + + /* Initializes the configure structure to zero. */ + (void)memset(config, 0, sizeof(*config)); + + config->fifoWatermarkLevel = 0U; + config->fifoWorkMode = kDAC12_FIFODisabled; + config->referenceVoltageSource = kDAC12_ReferenceVoltageSourceAlt1; + config->fifoTriggerMode = kDAC12_FIFOTriggerByHardwareMode; + config->referenceCurrentSource = kDAC12_ReferenceCurrentSourceAlt0; + config->speedMode = kDAC12_SpeedLowMode; + config->enableAnalogBuffer = false; +#if !(defined(FSL_FEATURE_DAC12_HAS_NO_ITRM_REGISTER) && FSL_FEATURE_DAC12_HAS_NO_ITRM_REGISTER) + config->currentReferenceInternalTrimValue = 0x4; +#endif /* FSL_FEATURE_DAC12_HAS_NO_ITRM_REGISTER */ +} |