612 lines
18 KiB
C
612 lines
18 KiB
C
/**
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**************************************************************************
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* @file at32f413_gpio.c
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* @brief contains all the functions for the gpio firmware library
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**************************************************************************
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* Copyright notice & Disclaimer
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*
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* The software Board Support Package (BSP) that is made available to
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* download from Artery official website is the copyrighted work of Artery.
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* Artery authorizes customers to use, copy, and distribute the BSP
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* software and its related documentation for the purpose of design and
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* development in conjunction with Artery microcontrollers. Use of the
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* software is governed by this copyright notice and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
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* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
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* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
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* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
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* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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*
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**************************************************************************
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*/
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#include "at32f413_conf.h"
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/** @addtogroup AT32F413_periph_driver
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* @{
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*/
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/** @defgroup GPIO
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* @brief GPIO driver modules
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* @{
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*/
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#ifdef GPIO_MODULE_ENABLED
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/** @defgroup GPIO_private_functions
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* @{
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*/
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/**
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* @brief reset the gpio register
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @retval none
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*/
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void gpio_reset(gpio_type *gpio_x)
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{
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if(gpio_x == GPIOA)
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{
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crm_periph_reset(CRM_GPIOA_PERIPH_RESET, TRUE);
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crm_periph_reset(CRM_GPIOA_PERIPH_RESET, FALSE);
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}
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else if(gpio_x == GPIOB)
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{
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crm_periph_reset(CRM_GPIOB_PERIPH_RESET, TRUE);
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crm_periph_reset(CRM_GPIOB_PERIPH_RESET, FALSE);
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}
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else if(gpio_x == GPIOC)
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{
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crm_periph_reset(CRM_GPIOC_PERIPH_RESET, TRUE);
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crm_periph_reset(CRM_GPIOC_PERIPH_RESET, FALSE);
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}
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else if(gpio_x == GPIOD)
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{
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crm_periph_reset(CRM_GPIOD_PERIPH_RESET, TRUE);
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crm_periph_reset(CRM_GPIOD_PERIPH_RESET, FALSE);
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}
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else if(gpio_x == GPIOF)
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{
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crm_periph_reset(CRM_GPIOF_PERIPH_RESET, TRUE);
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crm_periph_reset(CRM_GPIOF_PERIPH_RESET, FALSE);
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}
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}
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/**
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* @brief reset the mux functions (remap, event control
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and exint configuration) registers to their default values.
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* @param none
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* @retval none
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*/
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void gpio_iomux_reset(void)
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{
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crm_periph_reset(CRM_IOMUX_PERIPH_RESET, TRUE);
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crm_periph_reset(CRM_IOMUX_PERIPH_RESET, FALSE);
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}
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/**
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* @brief initialize the gpio peripheral.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param gpio_init_struct: pointer to gpio init structure.
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* @retval none
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*/
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void gpio_init(gpio_type *gpio_x, gpio_init_type *gpio_init_struct)
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{
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uint32_t temp;
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uint16_t pinx_value, pin_index;
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pin_index = (uint16_t)gpio_init_struct->gpio_pins;
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/* pinx_value indecate pin grounp bit[3:0] from modey[1:0] confy[1:0] */
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/* pin input analog config */
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if(gpio_init_struct->gpio_mode == GPIO_MODE_ANALOG)
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{
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pinx_value = 0x00;
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}
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/* pin input config */
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else if(gpio_init_struct->gpio_mode == GPIO_MODE_INPUT)
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{
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pinx_value = gpio_init_struct->gpio_pull & 0x0F;
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if(gpio_init_struct->gpio_pull == GPIO_PULL_UP)
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{
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gpio_x->scr = pin_index;
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}
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else if(gpio_init_struct->gpio_pull == GPIO_PULL_DOWN)
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{
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gpio_x->clr = pin_index;
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}
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}
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else
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{
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pinx_value = (gpio_init_struct->gpio_mode & 0x08) | (gpio_init_struct->gpio_out_type & 0x04) | \
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(gpio_init_struct->gpio_drive_strength & 0x03);
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}
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/* pin 0~7 config */
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if(((uint32_t)pin_index & ((uint32_t)0x00FF)) != 0x00)
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{
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for(temp = 0; temp < 0x08; temp++)
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{
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if((1 << temp) & pin_index)
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{
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gpio_x->cfglr &= (uint32_t)~(0x0F << (temp * 4));
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gpio_x->cfglr |= (uint32_t)(pinx_value << (temp * 4));
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}
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}
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}
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/* pin 8~15 config */
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if(pin_index > 0x00ff)
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{
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pin_index = pin_index >> 8;
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for(temp = 0; temp < 0x8; temp++)
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{
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if((1 << temp) & pin_index)
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{
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gpio_x->cfghr &= (uint32_t)~(0xf << (temp * 4));
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gpio_x->cfghr |= (uint32_t)(pinx_value << (temp * 4));
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}
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}
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}
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}
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/**
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* @brief fill each gpio_init_type member with its default value.
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* @param gpio_init_struct : pointer to a gpio_init_type structure which will be initialized.
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* @retval none
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*/
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void gpio_default_para_init(gpio_init_type *gpio_init_struct)
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{
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/* reset gpio init structure parameters values */
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gpio_init_struct->gpio_pins = GPIO_PINS_ALL;
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gpio_init_struct->gpio_mode = GPIO_MODE_INPUT;
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gpio_init_struct->gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
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gpio_init_struct->gpio_pull = GPIO_PULL_NONE;
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gpio_init_struct->gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
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}
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/**
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* @brief read the specified input port pin.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param pins: gpio pin number
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* this parameter can be one of the following values:
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* - GPIO_PINS_0
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* - GPIO_PINS_1
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* - GPIO_PINS_2
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* - GPIO_PINS_3
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* - GPIO_PINS_4
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* - GPIO_PINS_5
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* - GPIO_PINS_6
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* - GPIO_PINS_7
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* - GPIO_PINS_8
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* - GPIO_PINS_9
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* - GPIO_PINS_10
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* - GPIO_PINS_11
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* - GPIO_PINS_12
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* - GPIO_PINS_13
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* - GPIO_PINS_14
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* - GPIO_PINS_15
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* @retval flag_status (SET or RESET)
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*/
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flag_status gpio_input_data_bit_read(gpio_type *gpio_x, uint16_t pins)
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{
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flag_status status = RESET;
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if(pins != (pins & gpio_x->idt))
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{
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status = RESET;
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}
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else
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{
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status = SET;
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}
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return status;
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}
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/**
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* @brief read the specified gpio input data port.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @retval gpio input data port value.
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*/
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uint16_t gpio_input_data_read(gpio_type *gpio_x)
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{
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return ((uint16_t)(gpio_x->idt));
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}
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/**
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* @brief read the specified output port pin.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param pins: gpio pin number
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* this parameter can be one of the following values:
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* - GPIO_PINS_0
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* - GPIO_PINS_1
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* - GPIO_PINS_2
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* - GPIO_PINS_3
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* - GPIO_PINS_4
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* - GPIO_PINS_5
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* - GPIO_PINS_6
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* - GPIO_PINS_7
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* - GPIO_PINS_8
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* - GPIO_PINS_9
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* - GPIO_PINS_10
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* - GPIO_PINS_11
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* - GPIO_PINS_12
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* - GPIO_PINS_13
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* - GPIO_PINS_14
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* - GPIO_PINS_15
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* @retval flag_status (SET or RESET)
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*/
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flag_status gpio_output_data_bit_read(gpio_type *gpio_x, uint16_t pins)
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{
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flag_status status = RESET;
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if((gpio_x->odt & pins) != RESET)
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{
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status = SET;
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}
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else
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{
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status = RESET;
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}
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return status;
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}
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/**
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* @brief read the specified gpio ouput data port.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @retval gpio input data port value.
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*/
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uint16_t gpio_output_data_read(gpio_type *gpio_x)
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{
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return ((uint16_t)(gpio_x->odt));
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}
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/**
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* @brief set the selected data port bits.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param pins: gpio pin number
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* parameter can be any combination of gpio_pin_x, gpio_pin_x as following values:
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* - GPIO_PINS_0
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* - GPIO_PINS_1
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* - GPIO_PINS_2
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* - GPIO_PINS_3
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* - GPIO_PINS_4
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* - GPIO_PINS_5
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* - GPIO_PINS_6
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* - GPIO_PINS_7
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* - GPIO_PINS_8
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* - GPIO_PINS_9
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* - GPIO_PINS_10
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* - GPIO_PINS_11
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* - GPIO_PINS_12
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* - GPIO_PINS_13
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* - GPIO_PINS_14
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* - GPIO_PINS_15
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* - GPIO_PINS_ALL
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* @retval none
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*/
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void gpio_bits_set(gpio_type *gpio_x, uint16_t pins)
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{
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gpio_x->scr = pins;
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}
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/**
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* @brief clear the selected data port bits.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param pins: gpio pin number
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* parameter can be any combination of gpio_pin_x, gpio_pin_x as following values:
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* - GPIO_PINS_0
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* - GPIO_PINS_1
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* - GPIO_PINS_2
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* - GPIO_PINS_3
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* - GPIO_PINS_4
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* - GPIO_PINS_5
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* - GPIO_PINS_6
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* - GPIO_PINS_7
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* - GPIO_PINS_8
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* - GPIO_PINS_9
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* - GPIO_PINS_10
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* - GPIO_PINS_11
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* - GPIO_PINS_12
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* - GPIO_PINS_13
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* - GPIO_PINS_14
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* - GPIO_PINS_15
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* - GPIO_PINS_ALL
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* @retval none
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*/
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void gpio_bits_reset(gpio_type *gpio_x, uint16_t pins)
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{
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gpio_x->clr = pins;
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}
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/**
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* @brief set or clear the selected data port bit.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param pins: gpio pin number
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* parameter can be any combination of gpio_pin_x, gpio_pin_x as following values:
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* - GPIO_PINS_0
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* - GPIO_PINS_1
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* - GPIO_PINS_2
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* - GPIO_PINS_3
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* - GPIO_PINS_4
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* - GPIO_PINS_5
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* - GPIO_PINS_6
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* - GPIO_PINS_7
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* - GPIO_PINS_8
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* - GPIO_PINS_9
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* - GPIO_PINS_10
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* - GPIO_PINS_11
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* - GPIO_PINS_12
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* - GPIO_PINS_13
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* - GPIO_PINS_14
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* - GPIO_PINS_15
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* - GPIO_PINS_ALL
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* @param bit_state: specifies the value to be written to the selected bit (TRUE or FALSE).
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* @retval none
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*/
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void gpio_bits_write(gpio_type *gpio_x, uint16_t pins, confirm_state bit_state)
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{
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if(bit_state != FALSE)
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{
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gpio_x->scr = pins;
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}
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else
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{
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gpio_x->clr = pins;
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}
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}
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/**
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* @brief write data to the specified gpio data port.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param port_value: specifies the value to be written to the port output data register.
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* @retval none
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*/
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void gpio_port_write(gpio_type *gpio_x, uint16_t port_value)
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{
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gpio_x->odt = port_value;
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}
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/**
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* @brief write protect gpio pins configuration registers.
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* @param gpio_x: to select the gpio peripheral.
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* this parameter can be one of the following values:
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* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
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* @param pins: gpio pin number
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* this parameter can be any combination of the following:
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* - GPIO_PINS_0
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* - GPIO_PINS_1
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* - GPIO_PINS_2
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* - GPIO_PINS_3
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* - GPIO_PINS_4
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* - GPIO_PINS_5
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* - GPIO_PINS_6
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* - GPIO_PINS_7
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* - GPIO_PINS_8
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* - GPIO_PINS_9
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* - GPIO_PINS_10
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* - GPIO_PINS_11
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* - GPIO_PINS_12
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* - GPIO_PINS_13
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* - GPIO_PINS_14
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* - GPIO_PINS_15
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* - GPIO_PINS_ALL
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* @retval none
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*/
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void gpio_pin_wp_config(gpio_type *gpio_x, uint16_t pins)
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{
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uint32_t temp = 0x00010000;
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temp |= pins;
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/* set wpen bit */
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gpio_x->wpr = temp;
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/* reset wpen bit */
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gpio_x->wpr = pins;
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/* set wpen bit */
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gpio_x->wpr = temp;
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/* read wpen bit*/
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temp = gpio_x->wpr;
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/* read wpen bit*/
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temp = gpio_x->wpr;
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}
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/**
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* @brief select the gpio pin used as event output.
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* @param gpio_port_source: select the gpio port to be used as source
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* for event output.
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* this parameter can be one of the following values:
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* - GPIO_PORT_SOURCE_GPIOA
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* - GPIO_PORT_SOURCE_GPIOB
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* - GPIO_PORT_SOURCE_GPIOC
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* - GPIO_PORT_SOURCE_GPIOD
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* - GPIO_PORT_SOURCE_GPIOF
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* @param gpio_pin_source: specifies the pin for the event output.
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* this parameter can be one of the following values:
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* - GPIO_PINS_SOURCE0
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* - GPIO_PINS_SOURCE1
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* - GPIO_PINS_SOURCE2
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* - GPIO_PINS_SOURCE3
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* - GPIO_PINS_SOURCE4
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* - GPIO_PINS_SOURCE5
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* - GPIO_PINS_SOURCE6
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* - GPIO_PINS_SOURCE7
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* - GPIO_PINS_SOURCE8
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* - GPIO_PINS_SOURCE9
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* - GPIO_PINS_SOURCE10
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* - GPIO_PINS_SOURCE11
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* - GPIO_PINS_SOURCE12
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* - GPIO_PINS_SOURCE13
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* - GPIO_PINS_SOURCE14
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* - GPIO_PINS_SOURCE15
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* @retval none
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*/
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void gpio_event_output_config(gpio_port_source_type gpio_port_source, gpio_pins_source_type gpio_pin_source)
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{
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uint32_t tmpreg = 0x00;
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tmpreg = IOMUX->evtout;
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/* clear the port[6:4] and pin[3:0] bits */
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tmpreg &= 0x80;
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tmpreg |= (uint32_t)gpio_port_source << 0x04;
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tmpreg |= gpio_pin_source;
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IOMUX->evtout = tmpreg;
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}
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/**
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* @brief enable or disable the event output.
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* @param confirm_state: new state of the event output.
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* this parameter can be: TRUE or FALSE.
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* @retval none
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*/
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void gpio_event_output_enable(confirm_state new_state)
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{
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IOMUX->evtout_bit.evoen = new_state;
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}
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/**
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* @brief iomux remap and debug i/o configuration.
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* @param gpio_remap: select the pin to remap.
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* this parameter can be one of the following values:
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* - SPI1_MUX_01 - I2C1_MUX - USART1_MUX - USART3_MUX_01
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* - TMR1_MUX_01 - TMR2_MUX_01 - TMR2_MUX_10 - TMR2_MUX_11
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* - TMR3_MUX_10 - TMR3_MUX_11 - CAN_MUX_10 - PD01_MUX
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* - TMR5CH4_MUX - ADC1_EXTRGPRE_MUX - ADC1_EXTRGORD_MUX - ADC2_EXTRGPRE_MUX
|
|
* - ADC2_EXTRGORD_MUX - SWJTAG_CONF_001 - SWJTAG_CONF_010 - SWJTAG_CONF_100
|
|
* - EXT_SPIM_EN_MUX - TMR9_GMUX - TMR10_GMUX - TMR11_GMUX
|
|
* - TMR1_GMUX_0001 - TMR2_GMUX_001 - TMR2_GMUX_010 - TMR2_GMUX_011
|
|
* - TMR2ITR1_GMUX - TMR3_GMUX_0010 - TMR3_GMUX_0011 - TMR5_GMUX_001
|
|
* - TMR5CH4_GMUX - I2C1_GMUX_0001 - I2C1_GMUX_0011 - I2C2_GMUX_0001
|
|
* - I2C2_GMUX_0010 - I2C2_GMUX_0011 - SPI1_GMUX_0001 - SPI2_GMUX_0001
|
|
* - CAN1_GMUX_0010 - CAN2_GMUX_0001 - SDIO1_GMUX_0100 - SDIO1_GMUX_0101
|
|
* - SDIO1_GMUX_0110 - SDIO1_GMUX_0111 - USART1_GMUX_0001 - USART3_GMUX_0001
|
|
* - UART4_GMUX_0001 - EXT_SPIM_GMUX_1000 - EXT_SPIM_GMUX_1001 - ADC1_ETP_GMUX
|
|
* - ADC1_ETO_GMUX - ADC2_ETP_GMUX - ADC2_ETO_GMUX - SWJTAG_GMUX_001
|
|
* - SWJTAG_GMUX_010 - SWJTAG_GMUX_100 - PD01_GMUX
|
|
* @param new_state: (TRUE or FALSE)
|
|
* @retval none
|
|
*/
|
|
void gpio_pin_remap_config(uint32_t gpio_remap, confirm_state new_state)
|
|
{
|
|
uint32_t reg_addr, remap_mask;
|
|
uint8_t bit_offset, bit_num, bit_val;
|
|
|
|
/* get register address, bit offset, bit number and remap value */
|
|
reg_addr = IOMUX_BASE + (gpio_remap >> 24);
|
|
bit_offset = (gpio_remap >> 16) & 0xFF;
|
|
bit_num = (gpio_remap >> 8) & 0xFF;
|
|
bit_val = gpio_remap & 0xFF;
|
|
|
|
/* get remap mask value */
|
|
remap_mask = 0xFFFFFFFF << (32 - bit_num - bit_offset);
|
|
remap_mask = remap_mask >> (32 - bit_num - bit_offset);
|
|
remap_mask = remap_mask >> bit_offset;
|
|
remap_mask = remap_mask << bit_offset;
|
|
|
|
/* clear remap value */
|
|
*(uint32_t*)reg_addr &= ~remap_mask;
|
|
|
|
if(new_state != FALSE)
|
|
{
|
|
/* set remap value */
|
|
*(uint32_t*)reg_addr |= (uint32_t)(bit_val << bit_offset);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief select the gpio pin used as exint line.
|
|
* @param gpio_port_source: select the gpio port to be used as source for exint.
|
|
* this parameter can be one of the following values:
|
|
* - GPIO_PORT_SOURCE_GPIOA
|
|
* - GPIO_PORT_SOURCE_GPIOB
|
|
* - GPIO_PORT_SOURCE_GPIOC
|
|
* - GPIO_PORT_SOURCE_GPIOD
|
|
* - GPIO_PORT_SOURCE_GPIOF
|
|
* @param gpio_pin_source: specifies the pin for the event output.
|
|
* this parameter can be one of the following values:
|
|
* - GPIO_PINS_SOURCE0
|
|
* - GPIO_PINS_SOURCE1
|
|
* - GPIO_PINS_SOURCE2
|
|
* - GPIO_PINS_SOURCE3
|
|
* - GPIO_PINS_SOURCE4
|
|
* - GPIO_PINS_SOURCE5
|
|
* - GPIO_PINS_SOURCE6
|
|
* - GPIO_PINS_SOURCE7
|
|
* - GPIO_PINS_SOURCE8
|
|
* - GPIO_PINS_SOURCE9
|
|
* - GPIO_PINS_SOURCE10
|
|
* - GPIO_PINS_SOURCE11
|
|
* - GPIO_PINS_SOURCE12
|
|
* - GPIO_PINS_SOURCE13
|
|
* - GPIO_PINS_SOURCE14
|
|
* - GPIO_PINS_SOURCE15
|
|
* @retval none
|
|
*/
|
|
void gpio_exint_line_config(gpio_port_source_type gpio_port_source, gpio_pins_source_type gpio_pin_source)
|
|
{
|
|
uint32_t tmp = 0x00;
|
|
tmp = ((uint32_t)0x0F) << (0x04 * (gpio_pin_source & (uint8_t)0x03));
|
|
|
|
switch (gpio_pin_source >> 0x02)
|
|
{
|
|
case 0:
|
|
IOMUX->exintc1 &= ~tmp;
|
|
IOMUX->exintc1 |= (((uint32_t)gpio_port_source) << (0x04 * (gpio_pin_source & (uint8_t)0x03)));
|
|
break;
|
|
case 1:
|
|
IOMUX->exintc2 &= ~tmp;
|
|
IOMUX->exintc2 |= (((uint32_t)gpio_port_source) << (0x04 * (gpio_pin_source & (uint8_t)0x03)));
|
|
break;
|
|
case 2:
|
|
IOMUX->exintc3 &= ~tmp;
|
|
IOMUX->exintc3 |= (((uint32_t)gpio_port_source) << (0x04 * (gpio_pin_source & (uint8_t)0x03)));
|
|
break;
|
|
case 3:
|
|
IOMUX->exintc4 &= ~tmp;
|
|
IOMUX->exintc4 |= (((uint32_t)gpio_port_source) << (0x04 * (gpio_pin_source & (uint8_t)0x03)));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|