git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3179 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
gdisirio
parent
00aca9799f
commit
505ca5b117
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@ -19,8 +19,8 @@
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*/
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*/
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/**
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/**
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* @file STM32/pal_lld.c
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* @file STM32/GPIOv2/pal_lld.c
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* @brief STM32 GPIO low level driver code.
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* @brief STM32L1xx/STM32F2xx GPIO low level driver code.
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*
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*
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* @addtogroup PAL
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* @addtogroup PAL
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* @{
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* @{
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@ -31,19 +31,27 @@
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#if HAL_USE_PAL || defined(__DOXYGEN__)
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#if HAL_USE_PAL || defined(__DOXYGEN__)
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#if STM32_HAS_GPIOG
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#if STM32_HAS_GPIOH
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#define APB2_EN_MASK (RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | \
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#define AHB_EN_MASK (RCC_APBENR_IOPAEN | RCC_APBENR_IOPBEN | \
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RCC_APB2ENR_IOPCEN | RCC_APB2ENR_IOPDEN | \
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RCC_APBENR_IOPCEN | RCC_APBENR_IOPDEN | \
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RCC_APB2ENR_IOPEEN | RCC_APB2ENR_IOPFEN | \
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RCC_APBENR_IOPEEN | RCC_APBENR_IOPFEN | \
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RCC_APB2ENR_IOPGEN | RCC_APB2ENR_AFIOEN)
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RCC_APBENR_IOPGEN | RCC_APBENR_IOPHEN)
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#define AHB_LPEN_MASK AHB_EN_MASK
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#elif STM32_HAS_GPIOG
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#define AHB_EN_MASK (RCC_APBENR_IOPAEN | RCC_APBENR_IOPBEN | \
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RCC_APBENR_IOPCEN | RCC_APBENR_IOPDEN | \
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RCC_APBENR_IOPEEN | RCC_APBENR_IOPFEN | \
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RCC_APBENR_IOPGEN)
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#define AHB_LPEN_MASK AHB_EN_MASK
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#elif STM32_HAS_GPIOE
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#elif STM32_HAS_GPIOE
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#define APB2_EN_MASK (RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | \
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#define AHB_EN_MASK (RCC_APBENR_IOPAEN | RCC_APBENR_IOPBEN | \
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RCC_APB2ENR_IOPCEN | RCC_APB2ENR_IOPDEN | \
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RCC_APBENR_IOPCEN | RCC_APBENR_IOPDEN | \
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RCC_APB2ENR_IOPEEN | RCC_APB2ENR_AFIOEN)
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RCC_APBENR_IOPEEN)
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#define AHB_LPEN_MASK AHB_EN_MASK
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#else
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#else
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#define APB2_EN_MASK (RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | \
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#define AHB_EN_MASK (RCC_APBENR_IOPAEN | RCC_APBENR_IOPBEN | \
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RCC_APB2ENR_IOPCEN | RCC_APB2ENR_IOPDEN | \
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RCC_APBENR_IOPCEN | RCC_APBENR_IOPDEN)
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RCC_APB2ENR_AFIOEN)
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#define AHB_LPEN_MASK AHB_EN_MASK
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#endif
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#endif
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/*===========================================================================*/
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/*===========================================================================*/
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@ -58,6 +66,12 @@
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/* Driver local functions. */
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/**
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* @brief Initializes a GPIO peripheral.
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*
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* @param[in] gpiop pointer to the GPIO registers block
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* @param[in] config pointer to the configuration structure
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*/
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static void initgpio(GPIO_TypeDef *gpiop, const stm32_gpio_setup_t *config) {
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static void initgpio(GPIO_TypeDef *gpiop, const stm32_gpio_setup_t *config) {
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gpiop->MODER = config->moder;
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gpiop->MODER = config->moder;
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@ -79,7 +93,7 @@ static void initgpio(GPIO_TypeDef *gpiop, const stm32_gpio_setup_t *config) {
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/**
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/**
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* @brief STM32 I/O ports configuration.
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* @brief STM32 I/O ports configuration.
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* @details Ports A-D(E, F, G) clocks enabled, AFIO clock enabled.
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* @details Ports A-D(E, F, G, H) clocks enabled.
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*
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*
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* @param[in] config the STM32 ports configuration
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* @param[in] config the STM32 ports configuration
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*
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*
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@ -90,12 +104,8 @@ void _pal_lld_init(const PALConfig *config) {
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/*
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/*
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* Enables the GPIO related clocks.
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* Enables the GPIO related clocks.
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*/
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*/
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RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN |
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RCC->AHBENR |= AHB_EN_MASK;
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RCC_AHBENR_GPIOCEN | RCC_AHBENR_GPIODEN |
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RCC->AHBLPENR |= AHB_LPEN_MASK;
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RCC_AHBENR_GPIOEEN | RCC_AHBENR_GPIOHEN;
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RCC->AHBLPENR |= RCC_AHBLPENR_GPIOALPEN | RCC_AHBLPENR_GPIOBLPEN |
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RCC_AHBLPENR_GPIOCLPEN | RCC_AHBLPENR_GPIODLPEN |
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RCC_AHBLPENR_GPIOELPEN | RCC_AHBLPENR_GPIOHLPEN;
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/*
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/*
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* Initial GPIO setup.
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* Initial GPIO setup.
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@ -124,10 +134,8 @@ void _pal_lld_init(const PALConfig *config) {
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* with the specified mode.
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* with the specified mode.
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* @note This function is not meant to be invoked directly by the
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* @note This function is not meant to be invoked directly by the
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* application code.
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* application code.
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* @note @p PAL_MODE_UNCONNECTED is implemented as push pull output at 2MHz.
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* @note @p PAL_MODE_UNCONNECTED is implemented as push pull at minimum
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* @note Writing on pads programmed as pull-up or pull-down has the side
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* speed.
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* effect to modify the resistor setting because the output latched
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* data is used for the resistor selection.
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*
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*
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* @param[in] port the port identifier
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* @param[in] port the port identifier
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* @param[in] mask the group mask
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* @param[in] mask the group mask
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@ -19,8 +19,8 @@
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*/
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*/
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/**
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/**
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* @file STM32L1xx/pal_lld.h
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* @file STM32/GPIOv2/pal_lld.h
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* @brief STM32L1xx GPIO low level driver header.
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* @brief STM32L1xx/STM32F2xx GPIO low level driver header.
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*
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*
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* @addtogroup PAL
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* @addtogroup PAL
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* @{
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* @{
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@ -35,6 +35,8 @@
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/* Unsupported modes and specific modes */
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/* Unsupported modes and specific modes */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Overriding standard PAL definitions with STM32-specific enhanced
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definitions.*/
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#undef PAL_MODE_RESET
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#undef PAL_MODE_RESET
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#undef PAL_MODE_UNCONNECTED
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#undef PAL_MODE_UNCONNECTED
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#undef PAL_MODE_INPUT
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#undef PAL_MODE_INPUT
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#undef PAL_MODE_OUTPUT_PUSHPULL
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#undef PAL_MODE_OUTPUT_PUSHPULL
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#undef PAL_MODE_OUTPUT_OPENDRAIN
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#undef PAL_MODE_OUTPUT_OPENDRAIN
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#define PAL_STM32_MODE_MASK (3 >> 0)
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/**
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#define PAL_STM32_MODE_INPUT (0 >> 0)
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* @name Pads mode PAL flags.
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#define PAL_STM32_MODE_OUTPUT (1 >> 0)
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* @{
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#define PAL_STM32_MODE_ALTERNATE (2 >> 0)
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*/
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#define PAL_STM32_MODE_ANALOG (3 >> 0)
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#define PAL_STM32_MODE_MASK (3 >> 0) /**< @brief Mode field mask.*/
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#define PAL_STM32_MODE_INPUT (0 >> 0) /**< @brief Pad mode input. */
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#define PAL_STM32_MODE_OUTPUT (1 >> 0) /**< @brief Pad mode output.*/
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#define PAL_STM32_MODE_ALTERNATE (2 >> 0) /**< @brief Pad mode alt. */
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#define PAL_STM32_MODE_ANALOG (3 >> 0) /**< @brief Pad mode analog.*/
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/** @} */
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#define PAL_STM32_OTYPE_MASK (1 >> 2)
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/**
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#define PAL_STM32_OTYPE_PUSHPULL (0 >> 2)
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* @name Output type PAL flags.
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#define PAL_STM32_OTYPE_OPENDRAIN (1 >> 2)
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* @{
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*/
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#define PAL_STM32_OTYPE_MASK (1 >> 2) /**< @brief Output type
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mask. */
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#define PAL_STM32_OTYPE_PUSHPULL (0 >> 2) /**< @brief Output is
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push-pull. */
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#define PAL_STM32_OTYPE_OPENDRAIN (1 >> 2) /**< @brief Output is open
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drain. */
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/** @} */
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#define PAL_STM32_OSPEED_MASK (3 >> 3)
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/**
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#define PAL_STM32_OSPEED_400K (0 >> 3)
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* @name Output pads speed PAL flags.
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#define PAL_STM32_OSPEED_2M (1 >> 3)
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* @{
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#define PAL_STM32_OSPEED_10M (2 >> 3)
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*/
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#define PAL_STM32_OSPEED_40M (3 >> 3)
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#define PAL_STM32_OSPEED_MASK (3 >> 3) /**< @brief Output speed
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mask. */
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#define PAL_STM32_OSPEED(n) ((n) >> 3) /**< @brief Speed setting
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from 0 to 3. */
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/** @} */
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#define PAL_STM32_PUDR_MASK (3 >> 5)
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/**
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#define PAL_STM32_PUDR_FLOATING (0 >> 5)
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* @name Pull up/down resistors mode PAL flags.
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#define PAL_STM32_PUDR_PULLUP (1 >> 5)
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* @{
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#define PAL_STM32_PUDR_PULLDOWN (2 >> 5)
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*/
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#define PAL_STM32_PUDR_MASK (3 >> 5) /**< @brief Resistors mode
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mask. */
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#define PAL_STM32_PUDR_FLOATING (0 >> 5) /**< @brief Floating input. */
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#define PAL_STM32_PUDR_PULLUP (1 >> 5) /**< @brief Input with
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pull-up resistor. */
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#define PAL_STM32_PUDR_PULLDOWN (2 >> 5) /**< @brief Input with
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pull-down resistor. */
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/** @} */
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#define PAL_STM32_ALTERNATE_MASK (15 >> 7)
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/**
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#define PAL_STM32_ALTERNATE(n) ((n) >> 7)
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* @name Alternate function selection PAL flags.
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* @{
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*/
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#define PAL_STM32_ALTERNATE_MASK (15 >> 7) /**< @brief Alternate function
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mask. */
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#define PAL_STM32_ALTERNATE(n) ((n) >> 7) /**< @brief Alternate function
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setting from 0 to 15. */
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/** @} */
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/**
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/**
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* @brief This mode is implemented as input.
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* @brief This mode is implemented as input.
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*/
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*/
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#define PAL_MODE_RESET PAL_STM32_MODE_INPUT
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#define PAL_MODE_RESET PAL_STM32_MODE_INPUT
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/**
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/**
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* @brief This mode is implemented as output.
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* @brief This mode is implemented as output.
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*/
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*/
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#define PAL_MODE_UNCONNECTED PAL_STM32_MODE_OUTPUT
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#define PAL_MODE_UNCONNECTED PAL_STM32_MODE_OUTPUT
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/**
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/**
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* @brief Regular input high-Z pad.
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* @brief Regular input high-Z pad.
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*/
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*/
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#define PAL_MODE_INPUT PAL_STM32_MODE_INPUT
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#define PAL_MODE_INPUT PAL_STM32_MODE_INPUT
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/**
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/**
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* @brief Input pad with weak pull up resistor.
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* @brief Input pad with weak pull up resistor.
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*/
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*/
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#define PAL_MODE_INPUT_PULLUP (PAL_STM32_MODE_INPUT | \
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#define PAL_MODE_INPUT_PULLUP (PAL_STM32_MODE_INPUT | \
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PAL_STM32_PUDR_PULLUP)
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PAL_STM32_PUDR_PULLUP)
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/**
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/**
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* @brief Input pad with weak pull down resistor.
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* @brief Input pad with weak pull down resistor.
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*/
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*/
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#define PAL_MODE_INPUT_PULLDOWN (PAL_STM32_MODE_INPUT | \
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#define PAL_MODE_INPUT_PULLDOWN (PAL_STM32_MODE_INPUT | \
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PAL_STM32_PUDR_PULLDOWN)
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PAL_STM32_PUDR_PULLDOWN)
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/**
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/**
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* @brief Analog input mode.
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* @brief Analog input mode.
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*/
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*/
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#define PAL_MODE_INPUT_ANALOG PAL_STM32_MODE_ANALOG
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#define PAL_MODE_INPUT_ANALOG PAL_STM32_MODE_ANALOG
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/**
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/**
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* @brief Push-pull output pad.
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* @brief Push-pull output pad.
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*/
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*/
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#define PAL_MODE_OUTPUT_PUSHPULL (PAL_STM32_MODE_OUTPUT | \
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#define PAL_MODE_OUTPUT_PUSHPULL (PAL_STM32_MODE_OUTPUT | \
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PAL_STM32_OTYPE_PUSHPULL)
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PAL_STM32_OTYPE_PUSHPULL | \
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PAL_STM32_OSPEED(3))
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/**
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/**
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* @brief Open-drain output pad.
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* @brief Open-drain output pad.
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*/
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*/
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#define PAL_MODE_OUTPUT_OPENDRAIN (PAL_STM32_MODE_OUTPUT | \
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#define PAL_MODE_OUTPUT_OPENDRAIN (PAL_STM32_MODE_OUTPUT | \
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PAL_STM32_OTYPE_OPENDRAIN)
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PAL_STM32_OTYPE_OPENDRAIN | \
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PAL_STM32_OSPEED(3))
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/**
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/**
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* @brief Alternate push-pull output.
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* @brief Alternate push-pull output.
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*
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*
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* @param[in] n alternate function selector
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* @param[in] n alternate function selector
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*/
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*/
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#define PAL_MODE_ALTERNATE_PUSHPULL(n) (PAL_STM32_MODE_ALTERNATE | \
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#define PAL_MODE_ALT_PUSHPULL(n) (PAL_STM32_MODE_ALTERNATE | \
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PAL_STM32_OTYPE_PUSHPULL | \
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PAL_STM32_OTYPE_PUSHPULL | \
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PAL_STM32_ALTERNATE(n))
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PAL_STM32_OSPEED(3) | \
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PAL_STM32_ALTERNATE(n))
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/**
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/**
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* @brief Alternate push-pull output.
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* @brief Alternate push-pull output.
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*
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*
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* @param[in] n alternate function selector
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* @param[in] n alternate function selector
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*/
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*/
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#define PAL_MODE_ALTERNATE_OPENDRAIN(n) (PAL_STM32_MODE_ALTERNATE | \
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#define PAL_MODE_ALT_OPENDRAIN(n) (PAL_STM32_MODE_ALTERNATE | \
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PAL_STM32_OTYPE_OPENDRAIN | \
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PAL_STM32_OTYPE_OPENDRAIN | \
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PAL_STM32_ALTERNATE(n))
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PAL_STM32_OSPEED(3) | \
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PAL_STM32_ALTERNATE(n))
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/*===========================================================================*/
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/*===========================================================================*/
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/* I/O Ports Types and constants. */
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/* I/O Ports Types and constants. */
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