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rt-thread-official/bsp/es32f0654/drivers/drv_gpio.c

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/*
* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-01-23 wangyq the first version
*/
#include <rthw.h>
#include <rtdevice.h>
#include "board.h"
#include "drv_gpio.h"
#include <ald_cmu.h>
#include <ald_gpio.h>
#ifdef RT_USING_PIN
#define __ES32F0_PIN(index, gpio, gpio_index) {index, GPIO##gpio, GPIO_PIN_##gpio_index}
#define __ES32F0_PIN_DEFAULT {-1, 0, 0}
/* ES32F0 GPIO driver */
struct pin_index
{
int index;
GPIO_TypeDef *gpio;
uint32_t pin;
};
static const struct pin_index pins[] =
{
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN(2, C, 13),
__ES32F0_PIN(3, C, 14),
__ES32F0_PIN(4, C, 15),
__ES32F0_PIN(5, H, 0),
__ES32F0_PIN(6, H, 1),
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN(8, C, 0),
__ES32F0_PIN(9, C, 1),
__ES32F0_PIN(10, C, 2),
__ES32F0_PIN(11, C, 3),
__ES32F0_PIN(12, H, 3),
__ES32F0_PIN(13, H, 4),
__ES32F0_PIN(14, A, 0),
__ES32F0_PIN(15, A, 1),
__ES32F0_PIN(16, A, 2),
__ES32F0_PIN(17, A, 3),
__ES32F0_PIN(18, F, 0),
__ES32F0_PIN(19, F, 1),
__ES32F0_PIN(20, A, 4),
__ES32F0_PIN(21, A, 5),
__ES32F0_PIN(22, A, 6),
__ES32F0_PIN(23, A, 7),
__ES32F0_PIN(24, C, 4),
__ES32F0_PIN(25, C, 5),
__ES32F0_PIN(26, B, 0),
__ES32F0_PIN(27, B, 1),
__ES32F0_PIN(28, B, 2),
__ES32F0_PIN(29, B, 10),
__ES32F0_PIN(30, B, 11),
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN(33, B, 12),
__ES32F0_PIN(34, B, 13),
__ES32F0_PIN(35, B, 14),
__ES32F0_PIN(36, B, 15),
__ES32F0_PIN(37, C, 6),
__ES32F0_PIN(38, C, 7),
__ES32F0_PIN(39, C, 8),
__ES32F0_PIN(40, C, 9),
__ES32F0_PIN(41, A, 8),
__ES32F0_PIN(42, A, 9),
__ES32F0_PIN(43, A, 10),
__ES32F0_PIN(44, A, 11),
__ES32F0_PIN(45, A, 12),
__ES32F0_PIN(46, A, 13),
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN(49, A, 14),
__ES32F0_PIN(50, A, 15),
__ES32F0_PIN(51, C, 10),
__ES32F0_PIN(52, C, 11),
__ES32F0_PIN(53, C, 12),
__ES32F0_PIN(54, D, 2),
__ES32F0_PIN(55, B, 3),
__ES32F0_PIN(56, B, 4),
__ES32F0_PIN(57, B, 5),
__ES32F0_PIN(58, B, 6),
__ES32F0_PIN(59, B, 7),
__ES32F0_PIN(60, H, 2),
__ES32F0_PIN(61, B, 8),
__ES32F0_PIN(62, B, 9),
__ES32F0_PIN_DEFAULT,
__ES32F0_PIN_DEFAULT,
};
struct pin_irq_map
{
rt_uint16_t pinbit;
IRQn_Type irqno;
};
static const struct pin_irq_map pin_irq_map[] =
{
{GPIO_PIN_0, EXTI0_3_IRQn},
{GPIO_PIN_1, EXTI0_3_IRQn},
{GPIO_PIN_2, EXTI0_3_IRQn},
{GPIO_PIN_3, EXTI0_3_IRQn},
{GPIO_PIN_4, EXTI4_7_IRQn},
{GPIO_PIN_5, EXTI4_7_IRQn},
{GPIO_PIN_6, EXTI4_7_IRQn},
{GPIO_PIN_7, EXTI4_7_IRQn},
{GPIO_PIN_8, EXTI8_11_IRQn},
{GPIO_PIN_9, EXTI8_11_IRQn},
{GPIO_PIN_10, EXTI8_11_IRQn},
{GPIO_PIN_11, EXTI8_11_IRQn},
{GPIO_PIN_12, EXTI12_15_IRQn},
{GPIO_PIN_13, EXTI12_15_IRQn},
{GPIO_PIN_14, EXTI12_15_IRQn},
{GPIO_PIN_15, EXTI12_15_IRQn},
};
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},
};
#define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
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;
};
void es32f0_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_write_pin(index->gpio, index->pin, value);
}
int es32f0_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_read_pin(index->gpio, index->pin);
return value;
}
void es32f0_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
{
const struct pin_index *index;
gpio_init_t gpio_initstruct;
index = get_pin(pin);
if (index == RT_NULL)
{
return;
}
/* Configure GPIO_InitStructure */
gpio_initstruct.mode = GPIO_MODE_OUTPUT;
gpio_initstruct.func = GPIO_FUNC_1;
gpio_initstruct.odrv = GPIO_OUT_DRIVE_NORMAL;
gpio_initstruct.type = GPIO_TYPE_CMOS;
gpio_initstruct.pupd = GPIO_FLOATING;
gpio_initstruct.odos = GPIO_PUSH_PULL;
if (mode == PIN_MODE_OUTPUT)
{
/* output setting */
gpio_initstruct.mode = GPIO_MODE_OUTPUT;
gpio_initstruct.pupd = GPIO_FLOATING;
}
else if (mode == PIN_MODE_INPUT)
{
/* input setting: not pull. */
gpio_initstruct.mode = GPIO_MODE_INPUT;
gpio_initstruct.pupd = GPIO_FLOATING;
}
else if (mode == PIN_MODE_INPUT_PULLUP)
{
/* input setting: pull up. */
gpio_initstruct.mode = GPIO_MODE_INPUT;
gpio_initstruct.pupd = GPIO_PUSH_UP;
}
else if (mode == PIN_MODE_INPUT_PULLDOWN)
{
/* input setting: pull down. */
gpio_initstruct.mode = GPIO_MODE_INPUT;
gpio_initstruct.pupd = GPIO_PUSH_DOWN;
}
else if (mode == PIN_MODE_OUTPUT_OD)
{
/* output setting: od. */
gpio_initstruct.mode = GPIO_MODE_OUTPUT;
gpio_initstruct.pupd = GPIO_FLOATING;
gpio_initstruct.odos = GPIO_OPEN_DRAIN;
}
gpio_init(index->gpio, index->pin, &gpio_initstruct);
}
rt_inline const struct pin_irq_map *get_pin_irq_map(rt_uint16_t gpio_pin)
{
rt_int32_t mapindex = gpio_pin & 0x00FF;
if (mapindex < 0 || mapindex >= ITEM_NUM(pin_irq_map))
{
return RT_NULL;
}
return &pin_irq_map[mapindex];
};
rt_err_t es32f0_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;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_ENOSYS;
}
/* pin no. convert to dec no. */
for (irqindex = 0; irqindex < 16; irqindex++)
{
if ((0x01 << irqindex) == index->pin)
{
break;
}
}
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;
}
rt_err_t es32f0_pin_detach_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 = index->pin & 0x00FF;
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;
}
rt_err_t es32f0_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;
/* Configure GPIO_InitStructure & EXTI_InitStructure */
gpio_init_t gpio_initstruct;
exti_init_t exti_initstruct;
exti_initstruct.filter = DISABLE;
exti_initstruct.cks = EXTI_FILTER_CLOCK_10K;
exti_initstruct.filter_time = 0x0;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_ENOSYS;
}
if (enabled == PIN_IRQ_ENABLE)
{
/* pin no. convert to dec no. */
for (irqindex = 0; irqindex < 16; irqindex++)
{
if ((0x01 << irqindex) == index->pin)
{
break;
}
}
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];
gpio_exti_init(index->gpio, index->pin, &exti_initstruct);
/* Configure GPIO_InitStructure */
gpio_initstruct.mode = GPIO_MODE_INPUT;
gpio_initstruct.func = GPIO_FUNC_1;
switch (pin_irq_hdr_tab[irqindex].mode)
{
case PIN_IRQ_MODE_RISING:
gpio_initstruct.pupd = GPIO_PUSH_DOWN;
gpio_exti_interrupt_config(index->pin, EXTI_TRIGGER_RISING_EDGE, ENABLE);
break;
case PIN_IRQ_MODE_FALLING:
gpio_initstruct.pupd = GPIO_PUSH_UP;
gpio_exti_interrupt_config(index->pin, EXTI_TRIGGER_TRAILING_EDGE, ENABLE);
break;
case PIN_IRQ_MODE_RISING_FALLING:
gpio_initstruct.pupd = GPIO_FLOATING;
gpio_exti_interrupt_config(index->pin, EXTI_TRIGGER_BOTH_EDGE, ENABLE);
break;
}
gpio_init(index->gpio, index->pin, &gpio_initstruct);
NVIC_EnableIRQ(irqmap->irqno);
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;
}
NVIC_DisableIRQ(irqmap->irqno);
}
else
{
return RT_ENOSYS;
}
return RT_EOK;
}
const static struct rt_pin_ops _es32f0_pin_ops =
{
es32f0_pin_mode,
es32f0_pin_write,
es32f0_pin_read,
es32f0_pin_attach_irq,
es32f0_pin_detach_irq,
es32f0_pin_irq_enable,
};
int rt_hw_pin_init(void)
{
int result;
cmu_perh_clock_config(CMU_PERH_GPIO, ENABLE);
result = rt_device_pin_register("pin", &_es32f0_pin_ops, RT_NULL);
return result;
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
rt_inline void pin_irq_hdr(uint16_t GPIO_Pin)
{
uint16_t irqno;
/* pin no. convert to dec no. */
for (irqno = 0; irqno < 16; irqno++)
{
if ((0x01 << irqno) == GPIO_Pin)
{
break;
}
}
if (irqno == 16)
return;
if (pin_irq_hdr_tab[irqno].hdr)
{
pin_irq_hdr_tab[irqno].hdr(pin_irq_hdr_tab[irqno].args);
}
}
void GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if (gpio_exti_get_flag_status(GPIO_Pin) != RESET)
{
gpio_exti_clear_flag_status(GPIO_Pin);
pin_irq_hdr(GPIO_Pin);
}
}
void EXTI0_3_Handler(void)
{
rt_interrupt_enter();
GPIO_EXTI_Callback(GPIO_PIN_0);
GPIO_EXTI_Callback(GPIO_PIN_1);
GPIO_EXTI_Callback(GPIO_PIN_2);
GPIO_EXTI_Callback(GPIO_PIN_3);
rt_interrupt_leave();
}
void EXTI4_7_Handler(void)
{
rt_interrupt_enter();
GPIO_EXTI_Callback(GPIO_PIN_4);
GPIO_EXTI_Callback(GPIO_PIN_5);
GPIO_EXTI_Callback(GPIO_PIN_6);
GPIO_EXTI_Callback(GPIO_PIN_7);
rt_interrupt_leave();
}
void EXTI8_11_Handler(void)
{
rt_interrupt_enter();
GPIO_EXTI_Callback(GPIO_PIN_8);
GPIO_EXTI_Callback(GPIO_PIN_9);
GPIO_EXTI_Callback(GPIO_PIN_10);
GPIO_EXTI_Callback(GPIO_PIN_11);
rt_interrupt_leave();
}
void EXTI12_15_Handler(void)
{
rt_interrupt_enter();
GPIO_EXTI_Callback(GPIO_PIN_12);
GPIO_EXTI_Callback(GPIO_PIN_13);
GPIO_EXTI_Callback(GPIO_PIN_14);
GPIO_EXTI_Callback(GPIO_PIN_15);
rt_interrupt_leave();
}
#endif
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