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rt-thread-official/bsp/swm320-lq100/drivers/drv_gpio.c

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/*
* Copyright (c) 2006-2018, Synwit Technology Co.,Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-05-31 ZYH first version
* 2018-12-10 Zohar_Lee 修复bug
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#include <SWM320_port.h>
#include <SWM320_gpio.h>
#include <SWM320_exti.h>
#include <rthw.h>
typedef void (*pin_callback_t)(void *args);
struct pin
{
uint32_t package_index;
const char *name;
GPIO_TypeDef *port;
uint32_t group_index;
IRQn_Type irq;
rt_uint32_t irq_mode;
pin_callback_t callback;
void *callback_args;
};
typedef struct pin pin_t;
#define SWM32_PIN(a, b, c, d) \
{ \
a, #b, GPIO##c, d, GPIO##c##_IRQn \
}
#define GPIO0 ((GPIO_TypeDef *)(0))
#define GPIO0_IRQn (GPIOA0_IRQn)
const static pin_t swm32_pin_map[] =
{
SWM32_PIN(0, None, 0, 0),
SWM32_PIN(1, ADC0 CH3, 0, 0),
SWM32_PIN(2, ADC0 REFP, 0, 0),
SWM32_PIN(3, Cap0, 0, 0),
SWM32_PIN(4, B12, B, 12),
SWM32_PIN(5, RTC VDD, 0, 0),
SWM32_PIN(6, N14, N, 14),
SWM32_PIN(7, N13, N, 13),
SWM32_PIN(8, N12, N, 12),
SWM32_PIN(9, N11, N, 11),
SWM32_PIN(10, VDD 3.3V, 0, 0),
SWM32_PIN(11, VSS 3.3V, 0, 0),
SWM32_PIN(12, Cap 2, 0, 0),
SWM32_PIN(13, N9, N, 9),
SWM32_PIN(14, N10, N, 10),
SWM32_PIN(15, Cap 1, 0, 0),
SWM32_PIN(16, AVSS, 0, 0),
SWM32_PIN(17, AVDD, 0, 0),
SWM32_PIN(18, N2, N, 2),
SWM32_PIN(19, N1, N, 1),
SWM32_PIN(20, N0, N, 0),
SWM32_PIN(21, C4, C, 4),
SWM32_PIN(22, C5, C, 5),
SWM32_PIN(23, C6, C, 6),
SWM32_PIN(24, C7, C, 7),
SWM32_PIN(25, C2, C, 2),
SWM32_PIN(26, C3, C, 3),
SWM32_PIN(27, XHIN, 0, 0),
SWM32_PIN(28, XHOUT, 0, 0),
SWM32_PIN(29, RESET, 0, 0),
SWM32_PIN(30, M2, M, 2),
SWM32_PIN(31, M3, M, 3),
SWM32_PIN(32, M4, M, 4),
SWM32_PIN(33, M5, M, 5),
SWM32_PIN(34, M6, M, 6),
SWM32_PIN(35, M7, M, 7),
SWM32_PIN(36, M8, M, 8),
SWM32_PIN(37, M9, M, 9),
SWM32_PIN(38, M10, M, 10),
SWM32_PIN(39, M11, M, 11),
SWM32_PIN(40, M12, M, 12),
SWM32_PIN(41, M13, M, 13),
SWM32_PIN(42, M14, M, 14),
SWM32_PIN(43, M15, M, 15),
SWM32_PIN(44, M16, M, 16),
SWM32_PIN(45, M17, M, 17),
SWM32_PIN(46, M18, M, 18),
SWM32_PIN(47, M19, M, 19),
SWM32_PIN(48, M20, M, 20),
SWM32_PIN(49, M21, M, 21),
SWM32_PIN(50, VDDIO, 0, 0),
SWM32_PIN(51, M1, M, 1),
SWM32_PIN(52, M0, M, 0),
SWM32_PIN(53, P0, P, 0),
SWM32_PIN(54, P1, P, 1),
SWM32_PIN(55, P2, P, 2),
SWM32_PIN(56, P3, P, 3),
SWM32_PIN(57, P4, P, 4),
SWM32_PIN(58, P5, P, 5),
SWM32_PIN(59, P6, P, 6),
SWM32_PIN(60, P7, P, 7),
SWM32_PIN(61, P8, P, 8),
SWM32_PIN(62, P9, P, 9),
SWM32_PIN(63, P10, P, 10),
SWM32_PIN(64, P11, P, 11),
SWM32_PIN(65, P12, P, 12),
SWM32_PIN(66, P13, P, 13),
SWM32_PIN(67, P14, P, 14),
SWM32_PIN(68, P15, P, 15),
SWM32_PIN(69, P16, P, 16),
SWM32_PIN(70, P17, P, 17),
SWM32_PIN(71, P18, P, 18),
SWM32_PIN(72, P19, P, 19),
SWM32_PIN(73, P20, P, 20),
SWM32_PIN(74, P21, P, 21),
SWM32_PIN(75, P22, P, 22),
SWM32_PIN(76, P23, P, 23),
SWM32_PIN(77, B0, B, 0),
SWM32_PIN(78, A0, A, 0),
SWM32_PIN(79, A1, A, 1),
SWM32_PIN(80, A2, A, 2),
SWM32_PIN(81, A3, A, 3),
SWM32_PIN(82, A4, A, 4),
SWM32_PIN(83, A5, A, 5),
SWM32_PIN(84, VSSIO, 0, 0),
SWM32_PIN(85, C1, C, 1),
SWM32_PIN(86, N19, N, 19),
SWM32_PIN(87, N18, N, 18),
SWM32_PIN(88, N17, N, 17),
SWM32_PIN(89, N16, N, 16),
SWM32_PIN(90, N15, N, 15),
SWM32_PIN(91, N8, N, 8),
SWM32_PIN(92, N7, N, 7),
SWM32_PIN(93, N6, N, 6),
SWM32_PIN(94, N5, N, 5),
SWM32_PIN(95, N4, N, 4),
SWM32_PIN(96, N3, N, 3),
SWM32_PIN(97, A9, A, 9),
SWM32_PIN(98, A10, A, 10),
SWM32_PIN(99, A11, A, 11),
SWM32_PIN(100, A12, A, 12)
};
#define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
static pin_t *get_pin(uint8_t pin)
{
pin_t *index;
if (pin < ITEM_NUM(swm32_pin_map))
{
index = (pin_t *)&swm32_pin_map[pin];
if (index->port == GPIO0)
index = RT_NULL;
}
else
{
index = RT_NULL;
}
return index;
};
static void swm320_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
{
pin_t *index;
index = get_pin(pin);
if (index == RT_NULL)
{
return;
}
if (value)
{
GPIO_SetBit(index->port, index->group_index);
}
else
{
GPIO_ClrBit(index->port, index->group_index);
}
}
static int swm320_pin_read(rt_device_t dev, rt_base_t pin)
{
pin_t *index;
index = get_pin(pin);
if (index == RT_NULL)
{
return PIN_LOW;
}
return GPIO_GetBit(index->port, index->group_index);
}
static void swm320_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
{
pin_t *index;
int dir = 0;
int pull_up = 0;
int pull_down = 0;
index = get_pin(pin);
if (index == RT_NULL)
{
return;
}
/* Configure GPIO_InitStructure */
if (mode == PIN_MODE_OUTPUT)
{
/* output setting */
dir = 1;
}
else if (mode == PIN_MODE_INPUT)
{
/* input setting: not pull. */
dir = 0;
}
else if (mode == PIN_MODE_INPUT_PULLUP)
{
/* input setting: pull up. */
dir = 0;
pull_up = 1;
}
else if (mode == PIN_MODE_INPUT_PULLDOWN)
{
/* input setting: pull down. */
dir = 0;
pull_down = 1;
}
else if (mode == PIN_MODE_OUTPUT_OD)
{
/* output setting: od. */
dir = 1;
pull_up = 1;
}
GPIO_Init(index->port, index->group_index, dir, pull_up, pull_down);
}
static rt_err_t swm320_pin_attach_irq(struct rt_device *device,
rt_int32_t pin,
rt_uint32_t mode,
pin_callback_t cb,
void *args)
{
pin_t *index;
rt_base_t level;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_EINVAL;
}
level = rt_hw_interrupt_disable();
index->callback = cb;
index->callback_args = args;
index->irq_mode = mode;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t swm320_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
{
pin_t *index;
rt_base_t level;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_EINVAL;
}
level = rt_hw_interrupt_disable();
index->callback = 0;
index->callback_args = 0;
index->irq_mode = 0;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t swm320_pin_irq_enable(struct rt_device *device,
rt_base_t pin,
rt_uint32_t enabled)
{
pin_t *index;
rt_base_t level = 0;
index = get_pin(pin);
if (index == RT_NULL)
{
return RT_EINVAL;
}
if (enabled == PIN_IRQ_ENABLE)
{
switch (index->irq_mode)
{
case PIN_IRQ_MODE_RISING:
GPIO_Init(index->port, index->group_index, 0, 0, 1);
EXTI_Init(index->port, index->group_index, EXTI_RISE_EDGE);
break;
case PIN_IRQ_MODE_FALLING:
GPIO_Init(index->port, index->group_index, 0, 1, 0);
EXTI_Init(index->port, index->group_index, EXTI_FALL_EDGE);
break;
case PIN_IRQ_MODE_RISING_FALLING:
GPIO_Init(index->port, index->group_index, 0, 1, 1);
EXTI_Init(index->port, index->group_index, EXTI_BOTH_EDGE);
break;
case PIN_IRQ_MODE_HIGH_LEVEL:
GPIO_Init(index->port, index->group_index, 0, 0, 1);
EXTI_Init(index->port, index->group_index, EXTI_HIGH_LEVEL);
break;
case PIN_IRQ_MODE_LOW_LEVEL:
GPIO_Init(index->port, index->group_index, 0, 1, 0);
EXTI_Init(index->port, index->group_index, EXTI_LOW_LEVEL);
break;
default:
rt_hw_interrupt_enable(level);
return RT_EINVAL;
}
level = rt_hw_interrupt_disable();
NVIC_EnableIRQ(index->irq);
EXTI_Open(index->port, index->group_index);
rt_hw_interrupt_enable(level);
}
else if (enabled == PIN_IRQ_DISABLE)
{
NVIC_DisableIRQ(index->irq);
EXTI_Close(index->port, index->group_index);
}
else
{
return RT_ENOSYS;
}
return RT_EOK;
}
const static struct rt_pin_ops swm320_pin_ops =
{
swm320_pin_mode,
swm320_pin_write,
swm320_pin_read,
swm320_pin_attach_irq,
swm320_pin_detach_irq,
swm320_pin_irq_enable
};
int rt_hw_pin_init(void)
{
int result;
result = rt_device_pin_register("pin", &swm320_pin_ops, RT_NULL);
return result;
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
void GPIOA_Handler(void)
{
static int gpio[24];
int index = 0;
static int init = 0;
pin_t *pin;
/* enter interrupt */
rt_interrupt_enter();
if (init == 0)
{
init = 1;
for (pin = (pin_t *)&swm32_pin_map[1];
pin->package_index < ITEM_NUM(swm32_pin_map);
pin++)
{
if (pin->port == GPIOA)
{
gpio[index] = pin->package_index;
index++;
RT_ASSERT(index <= 24)
}
}
}
for (index = 0; index < 24; index++)
{
pin = get_pin(gpio[index]);
if (index != RT_NULL)
{
if (EXTI_State(pin->port, pin->group_index))
{
EXTI_Clear(pin->port, pin->group_index);
if (pin->callback)
{
pin->callback(pin->callback_args);
}
}
}
}
/* leave interrupt */
rt_interrupt_leave();
}
void GPIOB_Handler(void)
{
static int gpio[24];
int index = 0;
static int init = 0;
pin_t *pin;
/* enter interrupt */
rt_interrupt_enter();
if (init == 0)
{
init = 1;
for (pin = (pin_t *)&swm32_pin_map[1];
pin->package_index < ITEM_NUM(swm32_pin_map);
pin++)
{
if (pin->port == GPIOB)
{
gpio[index] = pin->package_index;
index++;
RT_ASSERT(index <= 24)
}
}
}
for (index = 0; index < 24; index++)
{
pin = get_pin(gpio[index]);
if (index != RT_NULL)
{
if (EXTI_State(pin->port, pin->group_index))
{
EXTI_Clear(pin->port, pin->group_index);
if (pin->callback)
{
pin->callback(pin->callback_args);
}
}
}
}
/* leave interrupt */
rt_interrupt_leave();
}
void GPIOC_Handler(void)
{
static int gpio[24];
int index = 0;
static int init = 0;
pin_t *pin;
/* enter interrupt */
rt_interrupt_enter();
if (init == 0)
{
init = 1;
for (pin = (pin_t *)&swm32_pin_map[1];
pin->package_index < ITEM_NUM(swm32_pin_map);
pin++)
{
if (pin->port == GPIOC)
{
gpio[index] = pin->package_index;
index++;
RT_ASSERT(index <= 24)
}
}
}
for (index = 0; index < 24; index++)
{
pin = get_pin(gpio[index]);
if (index != RT_NULL)
{
if (EXTI_State(pin->port, pin->group_index))
{
EXTI_Clear(pin->port, pin->group_index);
if (pin->callback)
{
pin->callback(pin->callback_args);
}
}
}
}
/* leave interrupt */
rt_interrupt_leave();
}
void GPIOM_Handler(void)
{
static int gpio[24];
int index = 0;
static int init = 0;
pin_t *pin;
/* enter interrupt */
rt_interrupt_enter();
if (init == 0)
{
init = 1;
for (pin = (pin_t *)&swm32_pin_map[1];
pin->package_index < ITEM_NUM(swm32_pin_map);
pin++)
{
if (pin->port == GPIOM)
{
gpio[index] = pin->package_index;
index++;
RT_ASSERT(index <= 24)
}
}
}
for (index = 0; index < 24; index++)
{
pin = get_pin(gpio[index]);
if (index != RT_NULL)
{
if (EXTI_State(pin->port, pin->group_index))
{
EXTI_Clear(pin->port, pin->group_index);
if (pin->callback)
{
pin->callback(pin->callback_args);
}
}
}
}
/* leave interrupt */
rt_interrupt_leave();
}
void GPION_Handler(void)
{
static int gpio[24];
int index = 0;
static int init = 0;
pin_t *pin;
/* enter interrupt */
rt_interrupt_enter();
if (init == 0)
{
init = 1;
for (pin = (pin_t *)&swm32_pin_map[1];
pin->package_index < ITEM_NUM(swm32_pin_map);
pin++)
{
if (pin->port == GPION)
{
gpio[index] = pin->package_index;
index++;
RT_ASSERT(index <= 24)
}
}
}
for (index = 0; index < 24; index++)
{
pin = get_pin(gpio[index]);
if (index != RT_NULL)
{
if (EXTI_State(pin->port, pin->group_index))
{
EXTI_Clear(pin->port, pin->group_index);
if (pin->callback)
{
pin->callback(pin->callback_args);
}
}
}
}
/* leave interrupt */
rt_interrupt_leave();
}
void GPIOP_Handler(void)
{
static int gpio[24];
int index = 0;
static int init = 0;
pin_t *pin;
/* enter interrupt */
rt_interrupt_enter();
if (init == 0)
{
init = 1;
for (pin = (pin_t *)&swm32_pin_map[1];
pin->package_index < ITEM_NUM(swm32_pin_map);
pin++)
{
if (pin->port == GPIOP)
{
gpio[index] = pin->package_index;
index++;
RT_ASSERT(index <= 24)
}
}
}
for (index = 0; index < 24; index++)
{
pin = get_pin(gpio[index]);
if (index != RT_NULL)
{
if (EXTI_State(pin->port, pin->group_index))
{
EXTI_Clear(pin->port, pin->group_index);
if (pin->callback)
{
pin->callback(pin->callback_args);
}
}
}
}
/* leave interrupt */
rt_interrupt_leave();
}
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