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bmy
2024-04-25 22:31:01 +08:00
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libraries/drivers/src/at32f413_gpio.c Normal file
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/**
**************************************************************************
* @file at32f413_gpio.c
* @brief contains all the functions for the gpio firmware library
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
#include "at32f413_conf.h"
/** @addtogroup AT32F413_periph_driver
* @{
*/
/** @defgroup GPIO
* @brief GPIO driver modules
* @{
*/
#ifdef GPIO_MODULE_ENABLED
/** @defgroup GPIO_private_functions
* @{
*/
/**
* @brief reset the gpio register
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @retval none
*/
void gpio_reset(gpio_type *gpio_x)
{
if(gpio_x == GPIOA)
{
crm_periph_reset(CRM_GPIOA_PERIPH_RESET, TRUE);
crm_periph_reset(CRM_GPIOA_PERIPH_RESET, FALSE);
}
else if(gpio_x == GPIOB)
{
crm_periph_reset(CRM_GPIOB_PERIPH_RESET, TRUE);
crm_periph_reset(CRM_GPIOB_PERIPH_RESET, FALSE);
}
else if(gpio_x == GPIOC)
{
crm_periph_reset(CRM_GPIOC_PERIPH_RESET, TRUE);
crm_periph_reset(CRM_GPIOC_PERIPH_RESET, FALSE);
}
else if(gpio_x == GPIOD)
{
crm_periph_reset(CRM_GPIOD_PERIPH_RESET, TRUE);
crm_periph_reset(CRM_GPIOD_PERIPH_RESET, FALSE);
}
else if(gpio_x == GPIOF)
{
crm_periph_reset(CRM_GPIOF_PERIPH_RESET, TRUE);
crm_periph_reset(CRM_GPIOF_PERIPH_RESET, FALSE);
}
}
/**
* @brief reset the mux functions (remap, event control
and exint configuration) registers to their default values.
* @param none
* @retval none
*/
void gpio_iomux_reset(void)
{
crm_periph_reset(CRM_IOMUX_PERIPH_RESET, TRUE);
crm_periph_reset(CRM_IOMUX_PERIPH_RESET, FALSE);
}
/**
* @brief initialize the gpio peripheral.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param gpio_init_struct: pointer to gpio init structure.
* @retval none
*/
void gpio_init(gpio_type *gpio_x, gpio_init_type *gpio_init_struct)
{
uint32_t temp;
uint16_t pinx_value, pin_index;
pin_index = (uint16_t)gpio_init_struct->gpio_pins;
/* pinx_value indecate pin grounp bit[3:0] from modey[1:0] confy[1:0] */
/* pin input analog config */
if(gpio_init_struct->gpio_mode == GPIO_MODE_ANALOG)
{
pinx_value = 0x00;
}
/* pin input config */
else if(gpio_init_struct->gpio_mode == GPIO_MODE_INPUT)
{
pinx_value = gpio_init_struct->gpio_pull & 0x0F;
if(gpio_init_struct->gpio_pull == GPIO_PULL_UP)
{
gpio_x->scr = pin_index;
}
else if(gpio_init_struct->gpio_pull == GPIO_PULL_DOWN)
{
gpio_x->clr = pin_index;
}
}
else
{
pinx_value = (gpio_init_struct->gpio_mode & 0x08) | (gpio_init_struct->gpio_out_type & 0x04) | \
(gpio_init_struct->gpio_drive_strength & 0x03);
}
/* pin 0~7 config */
if(((uint32_t)pin_index & ((uint32_t)0x00FF)) != 0x00)
{
for(temp = 0; temp < 0x08; temp++)
{
if((1 << temp) & pin_index)
{
gpio_x->cfglr &= (uint32_t)~(0x0F << (temp * 4));
gpio_x->cfglr |= (uint32_t)(pinx_value << (temp * 4));
}
}
}
/* pin 8~15 config */
if(pin_index > 0x00ff)
{
pin_index = pin_index >> 8;
for(temp = 0; temp < 0x8; temp++)
{
if((1 << temp) & pin_index)
{
gpio_x->cfghr &= (uint32_t)~(0xf << (temp * 4));
gpio_x->cfghr |= (uint32_t)(pinx_value << (temp * 4));
}
}
}
}
/**
* @brief fill each gpio_init_type member with its default value.
* @param gpio_init_struct : pointer to a gpio_init_type structure which will be initialized.
* @retval none
*/
void gpio_default_para_init(gpio_init_type *gpio_init_struct)
{
/* reset gpio init structure parameters values */
gpio_init_struct->gpio_pins = GPIO_PINS_ALL;
gpio_init_struct->gpio_mode = GPIO_MODE_INPUT;
gpio_init_struct->gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
gpio_init_struct->gpio_pull = GPIO_PULL_NONE;
gpio_init_struct->gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
}
/**
* @brief read the specified input port pin.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param pins: gpio pin number
* this parameter can be one of the following values:
* - GPIO_PINS_0
* - GPIO_PINS_1
* - GPIO_PINS_2
* - GPIO_PINS_3
* - GPIO_PINS_4
* - GPIO_PINS_5
* - GPIO_PINS_6
* - GPIO_PINS_7
* - GPIO_PINS_8
* - GPIO_PINS_9
* - GPIO_PINS_10
* - GPIO_PINS_11
* - GPIO_PINS_12
* - GPIO_PINS_13
* - GPIO_PINS_14
* - GPIO_PINS_15
* @retval flag_status (SET or RESET)
*/
flag_status gpio_input_data_bit_read(gpio_type *gpio_x, uint16_t pins)
{
flag_status status = RESET;
if(pins != (pins & gpio_x->idt))
{
status = RESET;
}
else
{
status = SET;
}
return status;
}
/**
* @brief read the specified gpio input data port.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @retval gpio input data port value.
*/
uint16_t gpio_input_data_read(gpio_type *gpio_x)
{
return ((uint16_t)(gpio_x->idt));
}
/**
* @brief read the specified output port pin.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param pins: gpio pin number
* this parameter can be one of the following values:
* - GPIO_PINS_0
* - GPIO_PINS_1
* - GPIO_PINS_2
* - GPIO_PINS_3
* - GPIO_PINS_4
* - GPIO_PINS_5
* - GPIO_PINS_6
* - GPIO_PINS_7
* - GPIO_PINS_8
* - GPIO_PINS_9
* - GPIO_PINS_10
* - GPIO_PINS_11
* - GPIO_PINS_12
* - GPIO_PINS_13
* - GPIO_PINS_14
* - GPIO_PINS_15
* @retval flag_status (SET or RESET)
*/
flag_status gpio_output_data_bit_read(gpio_type *gpio_x, uint16_t pins)
{
flag_status status = RESET;
if((gpio_x->odt & pins) != RESET)
{
status = SET;
}
else
{
status = RESET;
}
return status;
}
/**
* @brief read the specified gpio ouput data port.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @retval gpio input data port value.
*/
uint16_t gpio_output_data_read(gpio_type *gpio_x)
{
return ((uint16_t)(gpio_x->odt));
}
/**
* @brief set the selected data port bits.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param pins: gpio pin number
* parameter can be any combination of gpio_pin_x, gpio_pin_x as following values:
* - GPIO_PINS_0
* - GPIO_PINS_1
* - GPIO_PINS_2
* - GPIO_PINS_3
* - GPIO_PINS_4
* - GPIO_PINS_5
* - GPIO_PINS_6
* - GPIO_PINS_7
* - GPIO_PINS_8
* - GPIO_PINS_9
* - GPIO_PINS_10
* - GPIO_PINS_11
* - GPIO_PINS_12
* - GPIO_PINS_13
* - GPIO_PINS_14
* - GPIO_PINS_15
* - GPIO_PINS_ALL
* @retval none
*/
void gpio_bits_set(gpio_type *gpio_x, uint16_t pins)
{
gpio_x->scr = pins;
}
/**
* @brief clear the selected data port bits.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param pins: gpio pin number
* parameter can be any combination of gpio_pin_x, gpio_pin_x as following values:
* - GPIO_PINS_0
* - GPIO_PINS_1
* - GPIO_PINS_2
* - GPIO_PINS_3
* - GPIO_PINS_4
* - GPIO_PINS_5
* - GPIO_PINS_6
* - GPIO_PINS_7
* - GPIO_PINS_8
* - GPIO_PINS_9
* - GPIO_PINS_10
* - GPIO_PINS_11
* - GPIO_PINS_12
* - GPIO_PINS_13
* - GPIO_PINS_14
* - GPIO_PINS_15
* - GPIO_PINS_ALL
* @retval none
*/
void gpio_bits_reset(gpio_type *gpio_x, uint16_t pins)
{
gpio_x->clr = pins;
}
/**
* @brief set or clear the selected data port bit.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param pins: gpio pin number
* parameter can be any combination of gpio_pin_x, gpio_pin_x as following values:
* - GPIO_PINS_0
* - GPIO_PINS_1
* - GPIO_PINS_2
* - GPIO_PINS_3
* - GPIO_PINS_4
* - GPIO_PINS_5
* - GPIO_PINS_6
* - GPIO_PINS_7
* - GPIO_PINS_8
* - GPIO_PINS_9
* - GPIO_PINS_10
* - GPIO_PINS_11
* - GPIO_PINS_12
* - GPIO_PINS_13
* - GPIO_PINS_14
* - GPIO_PINS_15
* - GPIO_PINS_ALL
* @param bit_state: specifies the value to be written to the selected bit (TRUE or FALSE).
* @retval none
*/
void gpio_bits_write(gpio_type *gpio_x, uint16_t pins, confirm_state bit_state)
{
if(bit_state != FALSE)
{
gpio_x->scr = pins;
}
else
{
gpio_x->clr = pins;
}
}
/**
* @brief write data to the specified gpio data port.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param port_value: specifies the value to be written to the port output data register.
* @retval none
*/
void gpio_port_write(gpio_type *gpio_x, uint16_t port_value)
{
gpio_x->odt = port_value;
}
/**
* @brief write protect gpio pins configuration registers.
* @param gpio_x: to select the gpio peripheral.
* this parameter can be one of the following values:
* GPIOA, GPIOB, GPIOC, GPIOD, GPIOF.
* @param pins: gpio pin number
* this parameter can be any combination of the following:
* - GPIO_PINS_0
* - GPIO_PINS_1
* - GPIO_PINS_2
* - GPIO_PINS_3
* - GPIO_PINS_4
* - GPIO_PINS_5
* - GPIO_PINS_6
* - GPIO_PINS_7
* - GPIO_PINS_8
* - GPIO_PINS_9
* - GPIO_PINS_10
* - GPIO_PINS_11
* - GPIO_PINS_12
* - GPIO_PINS_13
* - GPIO_PINS_14
* - GPIO_PINS_15
* - GPIO_PINS_ALL
* @retval none
*/
void gpio_pin_wp_config(gpio_type *gpio_x, uint16_t pins)
{
uint32_t temp = 0x00010000;
temp |= pins;
/* set wpen bit */
gpio_x->wpr = temp;
/* reset wpen bit */
gpio_x->wpr = pins;
/* set wpen bit */
gpio_x->wpr = temp;
/* read wpen bit*/
temp = gpio_x->wpr;
/* read wpen bit*/
temp = gpio_x->wpr;
}
/**
* @brief select the gpio pin used as event output.
* @param gpio_port_source: select the gpio port to be used as source
* for event output.
* 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_event_output_config(gpio_port_source_type gpio_port_source, gpio_pins_source_type gpio_pin_source)
{
uint32_t tmpreg = 0x00;
tmpreg = IOMUX->evtout;
/* clear the port[6:4] and pin[3:0] bits */
tmpreg &= 0x80;
tmpreg |= (uint32_t)gpio_port_source << 0x04;
tmpreg |= gpio_pin_source;
IOMUX->evtout = tmpreg;
}
/**
* @brief enable or disable the event output.
* @param confirm_state: new state of the event output.
* this parameter can be: TRUE or FALSE.
* @retval none
*/
void gpio_event_output_enable(confirm_state new_state)
{
IOMUX->evtout_bit.evoen = new_state;
}
/**
* @brief iomux remap and debug i/o configuration.
* @param gpio_remap: select the pin to remap.
* this parameter can be one of the following values:
* - SPI1_MUX_01 - I2C1_MUX - USART1_MUX - USART3_MUX_01
* - TMR1_MUX_01 - TMR2_MUX_01 - TMR2_MUX_10 - TMR2_MUX_11
* - TMR3_MUX_10 - TMR3_MUX_11 - CAN_MUX_10 - PD01_MUX
* - 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
/**
* @}
*/
/**
* @}
*/