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rt-thread/bsp/n32/libraries/n32_drivers/drv_gpio.c

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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-10-19 Nations first version
*/
#include <rtdevice.h>
#include <rthw.h>
#include "board.h"
#include "drv_gpio.h"
#ifdef RT_USING_PIN
static const struct pin_index pins[] =
{
#if defined(GPIOA)
__N32_PIN(0 , GPIOA, GPIO_PIN_0 ),
__N32_PIN(1 , GPIOA, GPIO_PIN_1 ),
__N32_PIN(2 , GPIOA, GPIO_PIN_2 ),
__N32_PIN(3 , GPIOA, GPIO_PIN_3 ),
__N32_PIN(4 , GPIOA, GPIO_PIN_4 ),
__N32_PIN(5 , GPIOA, GPIO_PIN_5 ),
__N32_PIN(6 , GPIOA, GPIO_PIN_6 ),
__N32_PIN(7 , GPIOA, GPIO_PIN_7 ),
__N32_PIN(8 , GPIOA, GPIO_PIN_8 ),
__N32_PIN(9 , GPIOA, GPIO_PIN_9 ),
__N32_PIN(10, GPIOA, GPIO_PIN_10),
__N32_PIN(11, GPIOA, GPIO_PIN_11),
__N32_PIN(12, GPIOA, GPIO_PIN_12),
__N32_PIN(13, GPIOA, GPIO_PIN_13),
__N32_PIN(14, GPIOA, GPIO_PIN_14),
__N32_PIN(15, GPIOA, GPIO_PIN_15),
#if defined(GPIOB)
__N32_PIN(16, GPIOB, GPIO_PIN_0),
__N32_PIN(17, GPIOB, GPIO_PIN_1),
__N32_PIN(18, GPIOB, GPIO_PIN_2),
__N32_PIN(19, GPIOB, GPIO_PIN_3),
__N32_PIN(20, GPIOB, GPIO_PIN_4),
__N32_PIN(21, GPIOB, GPIO_PIN_5),
__N32_PIN(22, GPIOB, GPIO_PIN_6),
__N32_PIN(23, GPIOB, GPIO_PIN_7),
__N32_PIN(24, GPIOB, GPIO_PIN_8),
__N32_PIN(25, GPIOB, GPIO_PIN_9),
__N32_PIN(26, GPIOB, GPIO_PIN_10),
__N32_PIN(27, GPIOB, GPIO_PIN_11),
__N32_PIN(28, GPIOB, GPIO_PIN_12),
__N32_PIN(29, GPIOB, GPIO_PIN_13),
__N32_PIN(30, GPIOB, GPIO_PIN_14),
__N32_PIN(31, GPIOB, GPIO_PIN_15),
#if defined(GPIOC)
__N32_PIN(32, GPIOC, GPIO_PIN_0),
__N32_PIN(33, GPIOC, GPIO_PIN_1),
__N32_PIN(34, GPIOC, GPIO_PIN_2),
__N32_PIN(35, GPIOC, GPIO_PIN_3),
__N32_PIN(36, GPIOC, GPIO_PIN_4),
__N32_PIN(37, GPIOC, GPIO_PIN_5),
__N32_PIN(38, GPIOC, GPIO_PIN_6),
__N32_PIN(39, GPIOC, GPIO_PIN_7),
__N32_PIN(40, GPIOC, GPIO_PIN_8),
__N32_PIN(41, GPIOC, GPIO_PIN_9),
__N32_PIN(42, GPIOC, GPIO_PIN_10),
__N32_PIN(43, GPIOC, GPIO_PIN_11),
__N32_PIN(44, GPIOC, GPIO_PIN_12),
__N32_PIN(45, GPIOC, GPIO_PIN_13),
__N32_PIN(46, GPIOC, GPIO_PIN_14),
__N32_PIN(47, GPIOC, GPIO_PIN_15),
#if defined(GPIOD)
__N32_PIN(48, GPIOD, GPIO_PIN_0),
__N32_PIN(49, GPIOD, GPIO_PIN_1),
__N32_PIN(50, GPIOD, GPIO_PIN_2),
__N32_PIN(51, GPIOD, GPIO_PIN_3),
__N32_PIN(52, GPIOD, GPIO_PIN_4),
__N32_PIN(53, GPIOD, GPIO_PIN_5),
__N32_PIN(54, GPIOD, GPIO_PIN_6),
__N32_PIN(55, GPIOD, GPIO_PIN_7),
__N32_PIN(56, GPIOD, GPIO_PIN_8),
__N32_PIN(57, GPIOD, GPIO_PIN_9),
__N32_PIN(58, GPIOD, GPIO_PIN_10),
__N32_PIN(59, GPIOD, GPIO_PIN_11),
__N32_PIN(60, GPIOD, GPIO_PIN_12),
__N32_PIN(61, GPIOD, GPIO_PIN_13),
__N32_PIN(62, GPIOD, GPIO_PIN_14),
__N32_PIN(63, GPIOD, GPIO_PIN_15),
#if defined(GPIOE)
__N32_PIN(64, GPIOE, GPIO_PIN_0),
__N32_PIN(65, GPIOE, GPIO_PIN_1),
__N32_PIN(66, GPIOE, GPIO_PIN_2),
__N32_PIN(67, GPIOE, GPIO_PIN_3),
__N32_PIN(68, GPIOE, GPIO_PIN_4),
__N32_PIN(69, GPIOE, GPIO_PIN_5),
__N32_PIN(70, GPIOE, GPIO_PIN_6),
__N32_PIN(71, GPIOE, GPIO_PIN_7),
__N32_PIN(72, GPIOE, GPIO_PIN_8),
__N32_PIN(73, GPIOE, GPIO_PIN_9),
__N32_PIN(74, GPIOE, GPIO_PIN_10),
__N32_PIN(75, GPIOE, GPIO_PIN_11),
__N32_PIN(76, GPIOE, GPIO_PIN_12),
__N32_PIN(77, GPIOE, GPIO_PIN_13),
__N32_PIN(78, GPIOE, GPIO_PIN_14),
__N32_PIN(79, GPIOE, GPIO_PIN_15),
#if defined(GPIOF)
__N32_PIN(80, GPIOF, GPIO_PIN_0),
__N32_PIN(81, GPIOF, GPIO_PIN_1),
__N32_PIN(82, GPIOF, GPIO_PIN_2),
__N32_PIN(83, GPIOF, GPIO_PIN_3),
__N32_PIN(84, GPIOF, GPIO_PIN_4),
__N32_PIN(85, GPIOF, GPIO_PIN_5),
__N32_PIN(86, GPIOF, GPIO_PIN_6),
__N32_PIN(87, GPIOF, GPIO_PIN_7),
__N32_PIN(88, GPIOF, GPIO_PIN_8),
__N32_PIN(89, GPIOF, GPIO_PIN_9),
__N32_PIN(90, GPIOF, GPIO_PIN_10),
__N32_PIN(91, GPIOF, GPIO_PIN_11),
__N32_PIN(92, GPIOF, GPIO_PIN_12),
__N32_PIN(93, GPIOF, GPIO_PIN_13),
__N32_PIN(94, GPIOF, GPIO_PIN_14),
__N32_PIN(95, GPIOF, GPIO_PIN_15),
#if defined(GPIOG)
__N32_PIN(96, GPIOG, GPIO_PIN_0),
__N32_PIN(97, GPIOG, GPIO_PIN_1),
__N32_PIN(98, GPIOG, GPIO_PIN_2),
__N32_PIN(99, GPIOG, GPIO_PIN_3),
__N32_PIN(100, GPIOG, GPIO_PIN_4),
__N32_PIN(101, GPIOG, GPIO_PIN_5),
__N32_PIN(102, GPIOG, GPIO_PIN_6),
__N32_PIN(103, GPIOG, GPIO_PIN_7),
__N32_PIN(104, GPIOG, GPIO_PIN_8),
__N32_PIN(105, GPIOG, GPIO_PIN_9),
__N32_PIN(106, GPIOG, GPIO_PIN_10),
__N32_PIN(107, GPIOG, GPIO_PIN_11),
__N32_PIN(108, GPIOG, GPIO_PIN_12),
__N32_PIN(109, GPIOG, GPIO_PIN_13),
__N32_PIN(110, GPIOG, GPIO_PIN_14),
__N32_PIN(111, GPIOG, GPIO_PIN_15),
#endif /* defined(GPIOG) */
#endif /* defined(GPIOF) */
#endif /* defined(GPIOE) */
#endif /* defined(GPIOD) */
#endif /* defined(GPIOC) */
#endif /* defined(GPIOB) */
#endif /* defined(GPIOA) */
};
static const struct pin_irq_map pin_irq_map[] =
{
{GPIO_PIN_0, EXTI0_IRQn},
{GPIO_PIN_1, EXTI1_IRQn},
{GPIO_PIN_2, EXTI2_IRQn},
{GPIO_PIN_3, EXTI3_IRQn},
{GPIO_PIN_4, EXTI4_IRQn},
{GPIO_PIN_5, EXTI9_5_IRQn},
{GPIO_PIN_6, EXTI9_5_IRQn},
{GPIO_PIN_7, EXTI9_5_IRQn},
{GPIO_PIN_8, EXTI9_5_IRQn},
{GPIO_PIN_9, EXTI9_5_IRQn},
{GPIO_PIN_10, EXTI15_10_IRQn},
{GPIO_PIN_11, EXTI15_10_IRQn},
{GPIO_PIN_12, EXTI15_10_IRQn},
{GPIO_PIN_13, EXTI15_10_IRQn},
{GPIO_PIN_14, EXTI15_10_IRQn},
{GPIO_PIN_15, EXTI15_10_IRQn},
};
static struct rt_pin_irq_hdr pin_irq_hdr_tab[] =
{
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
{-1, 0, RT_NULL, RT_NULL},
};
static uint32_t pin_irq_enable_mask=0;
#define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
static const struct pin_index *get_pin(uint8_t pin)
{
const struct pin_index *index;
if (pin < ITEM_NUM(pins))
{
index = &pins[pin];
if (index->index == -1)
index = RT_NULL;
}
else
{
index = RT_NULL;
}
return index;
};
static void n32_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
{
const struct pin_index *index;
index = get_pin(pin);
if (index == RT_NULL)
{
return;
}
GPIO_WriteBit(index->gpio, index->pin, (Bit_OperateType)value);
}
static int n32_pin_read(rt_device_t dev, rt_base_t pin)
{
int value;
const struct pin_index *index;
value = PIN_LOW;
index = get_pin(pin);
if (index == RT_NULL)
{
return value;
}
value = GPIO_ReadInputDataBit(index->gpio, index->pin);
return value;
}
static void n32_gpio_clock_enable(GPIO_Module* GPIOx)
{
/* Enable the GPIO Clock */
if (GPIOx == GPIOA)
{
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOA, ENABLE);
}
else if (GPIOx == GPIOB)
{
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOB, ENABLE);
}
else if (GPIOx == GPIOC)
{
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOC, ENABLE);
}
else if (GPIOx == GPIOD)
{
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOD, ENABLE);
}
#if defined(SOC_N32G45X) || defined(SOC_N32WB452)
else if (GPIOx == GPIOE)
{
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOE, ENABLE);
}
#endif
#ifdef SOC_N32G45X
else if (GPIOx == GPIOF)
{
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOF, ENABLE);
}
else if (GPIOx == GPIOG)
{
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOG, ENABLE);
}
#endif /* SOC_N32G45X */
else
{
rt_kprintf("The GPIO port number is incorrect. No GPIO port exists\n");
}
}
static void n32_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
{
const struct pin_index *index;
GPIO_InitType GPIO_InitStructure;
index = get_pin(pin);
if (index == RT_NULL)
{
return;
}
/* Enable the GPIO Clock */
n32_gpio_clock_enable(index->gpio);
GPIO_InitStruct(&GPIO_InitStructure);
/* Configure GPIO_InitStructure */
GPIO_InitStructure.Pin = index->pin;
#if defined(SOC_N32G45X) || defined(SOC_N32WB452)
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
#endif
if (mode == PIN_MODE_OUTPUT)
{
/* output setting */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
}
else if (mode == PIN_MODE_INPUT)
{
/* input setting: not pull. */
#if defined(SOC_N32G45X) || defined(SOC_N32WB452)
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
#elif defined(SOC_N32L43X) || defined(SOC_N32L40X) || defined(SOC_N32G43X)
GPIO_InitStructure.GPIO_Pull = GPIO_No_Pull;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Input;
#endif
}
else if (mode == PIN_MODE_INPUT_PULLUP)
{
/* input setting: pull up. */
#if defined(SOC_N32G45X) || defined(SOC_N32WB452)
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
#elif defined(SOC_N32L43X) || defined(SOC_N32L40X) || defined(SOC_N32G43X)
GPIO_InitStructure.GPIO_Pull = GPIO_Pull_Up;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Input;
#endif
}
else if (mode == PIN_MODE_INPUT_PULLDOWN)
{
/* input setting: pull down. */
#if defined(SOC_N32G45X) || defined(SOC_N32WB452)
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
#elif defined(SOC_N32L43X) || defined(SOC_N32L40X) || defined(SOC_N32G43X)
GPIO_InitStructure.GPIO_Pull = GPIO_Pull_Down;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Input;
#endif
}
else if (mode == PIN_MODE_OUTPUT_OD)
{
/* output setting: od. */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
}
#if defined(SOC_N32G45X) || defined(SOC_N32WB452)
GPIO_InitPeripheral(index->gpio, &GPIO_InitStructure);
#elif defined(SOC_N32L43X) || defined(SOC_N32L40X) || defined(SOC_N32G43X)
GPIO_InitPeripheral(index->gpio, &GPIO_InitStructure);
#endif
}
rt_inline rt_int32_t bit2bitno(rt_uint32_t bit)
{
int i;
for (i = 0; i < 32; i++)
{
if ((0x01 << i) == bit)
{
return i;
}
}
return -1;
}
rt_inline rt_int32_t port2portsource(GPIO_Module* module)
{
if (module == GPIOA)
{
return GPIOA_PORT_SOURCE;
}
else if (module == GPIOB)
{
return GPIOB_PORT_SOURCE;
}
else if (module == GPIOC)
{
return GPIOC_PORT_SOURCE;
}
else if (module == GPIOD)
{
return GPIOD_PORT_SOURCE;
}
#if defined(SOC_N32G45X) || defined(SOC_N32WB452)
else if (module == GPIOE)
{
return GPIOE_PORT_SOURCE;
}
#endif
#ifdef SOC_N32G45X
else if (module == GPIOF)
{
return GPIOF_PORT_SOURCE;
}
else if (module == GPIOG)
{
return GPIOG_PORT_SOURCE;
}
#endif /* SOC_N32G45X */
else
{
rt_kprintf("The GPIO port number is incorrect. No GPIO port exists\n");
return -RT_ERROR;
}
}
rt_inline const struct pin_irq_map *get_pin_irq_map(uint32_t pinbit)
{
rt_int32_t mapindex = bit2bitno(pinbit);
if (mapindex < 0 || mapindex >= ITEM_NUM(pin_irq_map))
{
return RT_NULL;
}
return &pin_irq_map[mapindex];
};
static rt_err_t n32_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
rt_uint32_t mode, void (*hdr)(void *args), void *args)
{
const struct pin_index *index;
rt_base_t level;
rt_int32_t irqindex = -1;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_ENOSYS;
}
irqindex = bit2bitno(index->pin);
if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_map))
{
return RT_ENOSYS;
}
level = rt_hw_interrupt_disable();
if (pin_irq_hdr_tab[irqindex].pin == pin &&
pin_irq_hdr_tab[irqindex].hdr == hdr &&
pin_irq_hdr_tab[irqindex].mode == mode &&
pin_irq_hdr_tab[irqindex].args == args)
{
rt_hw_interrupt_enable(level);
return RT_EOK;
}
if (pin_irq_hdr_tab[irqindex].pin != -1)
{
rt_hw_interrupt_enable(level);
return RT_EBUSY;
}
pin_irq_hdr_tab[irqindex].pin = pin;
pin_irq_hdr_tab[irqindex].hdr = hdr;
pin_irq_hdr_tab[irqindex].mode = mode;
pin_irq_hdr_tab[irqindex].args = args;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t n32_pin_dettach_irq(struct rt_device *device, rt_int32_t pin)
{
const struct pin_index *index;
rt_base_t level;
rt_int32_t irqindex = -1;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_ENOSYS;
}
irqindex = bit2bitno(index->pin);
if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_map))
{
return RT_ENOSYS;
}
level = rt_hw_interrupt_disable();
if (pin_irq_hdr_tab[irqindex].pin == -1)
{
rt_hw_interrupt_enable(level);
return RT_EOK;
}
pin_irq_hdr_tab[irqindex].pin = -1;
pin_irq_hdr_tab[irqindex].hdr = RT_NULL;
pin_irq_hdr_tab[irqindex].mode = 0;
pin_irq_hdr_tab[irqindex].args = RT_NULL;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t n32_pin_irq_enable(struct rt_device *device, rt_base_t pin,
rt_uint32_t enabled)
{
const struct pin_index *index;
const struct pin_irq_map *irqmap;
rt_base_t level;
rt_int32_t irqindex = -1;
EXTI_InitType EXTI_InitStructure;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_ENOSYS;
}
if (enabled == PIN_IRQ_ENABLE)
{
irqindex = bit2bitno(index->pin);
if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_map))
{
return RT_ENOSYS;
}
level = rt_hw_interrupt_disable();
if (pin_irq_hdr_tab[irqindex].pin == -1)
{
rt_hw_interrupt_enable(level);
return RT_ENOSYS;
}
irqmap = &pin_irq_map[irqindex];
switch (pin_irq_hdr_tab[irqindex].mode)
{
case PIN_IRQ_MODE_RISING:
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
break;
case PIN_IRQ_MODE_FALLING:
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
break;
case PIN_IRQ_MODE_RISING_FALLING:
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
break;
default:
return -RT_ERROR;
}
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_AFIO, ENABLE);
/* configure EXTI line */
GPIO_ConfigEXTILine(port2portsource(index->gpio), irqindex);
/*Configure key EXTI line*/
EXTI_InitStructure.EXTI_Line = index->pin;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_InitPeripheral(&EXTI_InitStructure);
EXTI_ClrITPendBit(index->pin);
/* enable and set interrupt priority */
NVIC_SetPriority(irqmap->irqno, 5);
NVIC_EnableIRQ(irqmap->irqno);
pin_irq_enable_mask |= irqmap->pinbit;
rt_hw_interrupt_enable(level);
}
else if (enabled == PIN_IRQ_DISABLE)
{
irqmap = get_pin_irq_map(index->pin);
if (irqmap == RT_NULL)
{
return RT_ENOSYS;
}
level = rt_hw_interrupt_disable();
pin_irq_enable_mask &= ~irqmap->pinbit;
if (( irqmap->pinbit>=GPIO_PIN_5 )&&( irqmap->pinbit<=GPIO_PIN_9 ))
{
if (!(pin_irq_enable_mask&(GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9)))
{
NVIC_DisableIRQ(irqmap->irqno);
}
}
else if (( irqmap->pinbit>=GPIO_PIN_10 )&&( irqmap->pinbit<=GPIO_PIN_15 ))
{
if (!(pin_irq_enable_mask&(GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15)))
{
NVIC_DisableIRQ(irqmap->irqno);
}
}
else
{
NVIC_DisableIRQ(irqmap->irqno);
}
rt_hw_interrupt_enable(level);
}
else
{
return -RT_ENOSYS;
}
return RT_EOK;
}
const static struct rt_pin_ops _n32_pin_ops =
{
n32_pin_mode,
n32_pin_write,
n32_pin_read,
n32_pin_attach_irq,
n32_pin_dettach_irq,
n32_pin_irq_enable,
};
int rt_hw_pin_init(void)
{
return rt_device_pin_register("pin", &_n32_pin_ops, RT_NULL);
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
rt_inline void pin_irq_hdr(int irqno)
{
if (pin_irq_hdr_tab[irqno].hdr)
{
pin_irq_hdr_tab[irqno].hdr(pin_irq_hdr_tab[irqno].args);
}
}
void N32_GPIO_EXTI_IRQHandler(rt_int8_t exti_line)
{
if (RESET != EXTI_GetITStatus(1 << exti_line))
{
pin_irq_hdr(exti_line);
EXTI_ClrITPendBit(1 << exti_line);
}
}
void EXTI0_IRQHandler(void)
{
rt_interrupt_enter();
N32_GPIO_EXTI_IRQHandler(0);
rt_interrupt_leave();
}
void EXTI1_IRQHandler(void)
{
rt_interrupt_enter();
N32_GPIO_EXTI_IRQHandler(1);
rt_interrupt_leave();
}
void EXTI2_IRQHandler(void)
{
rt_interrupt_enter();
N32_GPIO_EXTI_IRQHandler(2);
rt_interrupt_leave();
}
void EXTI3_IRQHandler(void)
{
rt_interrupt_enter();
N32_GPIO_EXTI_IRQHandler(3);
rt_interrupt_leave();
}
void EXTI4_IRQHandler(void)
{
rt_interrupt_enter();
N32_GPIO_EXTI_IRQHandler(4);
rt_interrupt_leave();
}
void EXTI9_5_IRQHandler(void)
{
rt_interrupt_enter();
N32_GPIO_EXTI_IRQHandler(5);
N32_GPIO_EXTI_IRQHandler(6);
N32_GPIO_EXTI_IRQHandler(7);
N32_GPIO_EXTI_IRQHandler(8);
N32_GPIO_EXTI_IRQHandler(9);
rt_interrupt_leave();
}
void EXTI15_10_IRQHandler(void)
{
rt_interrupt_enter();
N32_GPIO_EXTI_IRQHandler(10);
N32_GPIO_EXTI_IRQHandler(11);
N32_GPIO_EXTI_IRQHandler(12);
N32_GPIO_EXTI_IRQHandler(13);
N32_GPIO_EXTI_IRQHandler(14);
N32_GPIO_EXTI_IRQHandler(15);
rt_interrupt_leave();
}
#endif /* RT_USING_PIN */
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