diff options
Diffstat (limited to 'bsps/arm/imxrt/mcux-sdk/drivers/gpt/fsl_gpt.c')
-rw-r--r-- | bsps/arm/imxrt/mcux-sdk/drivers/gpt/fsl_gpt.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/bsps/arm/imxrt/mcux-sdk/drivers/gpt/fsl_gpt.c b/bsps/arm/imxrt/mcux-sdk/drivers/gpt/fsl_gpt.c new file mode 100644 index 0000000000..691cdf590e --- /dev/null +++ b/bsps/arm/imxrt/mcux-sdk/drivers/gpt/fsl_gpt.c @@ -0,0 +1,127 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2021 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_gpt.h" + +/* Component ID definition, used by tools. */ +#ifndef FSL_COMPONENT_ID +#define FSL_COMPONENT_ID "platform.drivers.gpt" +#endif + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/******************************************************************************* + * Variables + ******************************************************************************/ +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) +/*! @brief Pointers to GPT bases for each instance. */ +static GPT_Type *const s_gptBases[] = GPT_BASE_PTRS; + +/*! @brief Pointers to GPT clocks for each instance. */ +static const clock_ip_name_t s_gptClocks[] = GPT_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t GPT_GetInstance(GPT_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0U; instance < ARRAY_SIZE(s_gptBases); instance++) + { + if (s_gptBases[instance] == base) + { + break; + } + } + + assert(instance < ARRAY_SIZE(s_gptBases)); + + return instance; +} +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ + +/*! + * brief Initialize GPT to reset state and initialize running mode. + * + * param base GPT peripheral base address. + * param initConfig GPT mode setting configuration. + */ +void GPT_Init(GPT_Type *base, const gpt_config_t *initConfig) +{ + assert(NULL != initConfig); + +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + /* Ungate the GPT clock*/ + (void)CLOCK_EnableClock(s_gptClocks[GPT_GetInstance(base)]); +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ + base->CR = 0U; + + GPT_SoftwareReset(base); + + base->CR = + (initConfig->enableFreeRun ? GPT_CR_FRR_MASK : 0UL) | (initConfig->enableRunInWait ? GPT_CR_WAITEN_MASK : 0UL) | + (initConfig->enableRunInStop ? GPT_CR_STOPEN_MASK : 0UL) | + (initConfig->enableRunInDoze ? GPT_CR_DOZEEN_MASK : 0UL) | + (initConfig->enableRunInDbg ? GPT_CR_DBGEN_MASK : 0UL) | (initConfig->enableMode ? GPT_CR_ENMOD_MASK : 0UL); + + GPT_SetClockSource(base, initConfig->clockSource); + GPT_SetClockDivider(base, initConfig->divider); +} + +/*! + * brief Disables the module and gates the GPT clock. + * + * param base GPT peripheral base address. + */ +void GPT_Deinit(GPT_Type *base) +{ + /* Disable GPT timers */ + base->CR = 0U; + +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + /* Gate the GPT clock*/ + (void)CLOCK_DisableClock(s_gptClocks[GPT_GetInstance(base)]); +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ +} + +/*! + * brief Fills in the GPT configuration structure with default settings. + * + * The default values are: + * code + * config->clockSource = kGPT_ClockSource_Periph; + * config->divider = 1U; + * config->enableRunInStop = true; + * config->enableRunInWait = true; + * config->enableRunInDoze = false; + * config->enableRunInDbg = false; + * config->enableFreeRun = false; + * config->enableMode = true; + * endcode + * param config Pointer to the user configuration structure. + */ +void GPT_GetDefaultConfig(gpt_config_t *config) +{ + assert(NULL != config); + + /* Initializes the configure structure to zero. */ + (void)memset(config, 0, sizeof(*config)); + + config->clockSource = kGPT_ClockSource_Periph; + config->divider = 1U; + config->enableRunInStop = true; + config->enableRunInWait = true; + config->enableRunInDoze = false; + config->enableRunInDbg = false; + config->enableFreeRun = false; + config->enableMode = true; +} |