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rt-thread-official/bsp/Vango/v85xxp/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
* 2020-12-27 iysheng first version
* 2021-01-01 iysheng support exti interrupt
* 2021-09-07 FuC Suit for V85XX
* 2021-09-09 ZhuXW Add GPIO interrupt
* 2021-09-12 ZhuXW Suit for V85XXP
*/
#include <board.h>
#include "drv_gpio.h"
#ifdef RT_USING_PIN
#if defined(GPIOF)
#define __V85XXP_PORT_MAX 6u
#elif defined(GPIOE)
#define __V85XXP_PORT_MAX 5u
#elif defined(GPIOD)
#define __V85XXP_PORT_MAX 4u
#elif defined(GPIOC)
#define __V85XXP_PORT_MAX 3u
#elif defined(GPIOB)
#define __V85XXP_PORT_MAX 2u
#elif defined(GPIOA)
#define __V85XXP_PORT_MAX 1u
#else
#define __V85XXP_PORT_MAX 0u
#error Unsupported V85XXP GPIO peripheral.
#endif
#define PIN_V85XXPPORT_MAX __V85XXP_PORT_MAX
#define PIN_V85XXPPORT_A 0u
static const struct pin_irq_map pin_irq_map[] =
{
#if defined(SOC_SERIES_V85XXP)
{GPIO_Pin_0, PMU_IRQn},
{GPIO_Pin_1, PMU_IRQn},
{GPIO_Pin_2, PMU_IRQn},
{GPIO_Pin_3, PMU_IRQn},
{GPIO_Pin_4, PMU_IRQn},
{GPIO_Pin_5, PMU_IRQn},
{GPIO_Pin_6, PMU_IRQn},
{GPIO_Pin_7, PMU_IRQn},
{GPIO_Pin_8, PMU_IRQn},
{GPIO_Pin_9, PMU_IRQn},
{GPIO_Pin_10, PMU_IRQn},
{GPIO_Pin_11, PMU_IRQn},
{GPIO_Pin_12, PMU_IRQn},
{GPIO_Pin_13, PMU_IRQn},
{GPIO_Pin_14, PMU_IRQn},
{GPIO_Pin_15, PMU_IRQn},
#else
#error "Unsupported soc series"
#endif
};
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 rt_base_t V85XXP_pin_get(const char *name)
{
rt_base_t pin = 0;
int hw_port_num, hw_pin_num = 0;
int i, name_len;
name_len = rt_strlen(name);
if ((name_len < 4) || (name_len >= 6))
{
return -RT_EINVAL;
}
if ((name[0] != 'P') || (name[2] != '.'))
{
return -RT_EINVAL;
}
if ((name[1] >= 'A') && (name[1] <= 'F'))
{
hw_port_num = (int)(name[1] - 'A');
}
else
{
return -RT_EINVAL;
}
for (i = 3; i < name_len; i++)
{
hw_pin_num *= 10;
hw_pin_num += name[i] - '0';
}
pin = PIN_NUM(hw_port_num, hw_pin_num);
return pin;
}
static void V85XXP_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
{
GPIO_Type *gpio_port;
uint16_t gpio_pin;
if (PIN_PORT(pin) == PIN_V85XXPPORT_A)
{
gpio_pin = PIN_V85XXPPIN(pin);
GPIOA_WriteBit(GPIOA, gpio_pin, (BitState)value);
}
else if (PIN_PORT(pin) < PIN_V85XXPPORT_MAX)
{
gpio_port = PIN_V85XXPPORT(pin);
gpio_pin = PIN_V85XXPPIN(pin);
GPIOBToF_WriteBit(gpio_port, gpio_pin, (BitState)value);
}
}
static int V85XXP_pin_read(rt_device_t dev, rt_base_t pin)
{
GPIO_Type *gpio_port;
uint16_t gpio_pin;
int value = PIN_LOW;
if (PIN_PORT(pin) == PIN_V85XXPPORT_A)
{
gpio_pin = PIN_V85XXPPIN(pin);
value = GPIOA_ReadInputDataBit(GPIOA, gpio_pin);
}
else if (PIN_PORT(pin) < PIN_V85XXPPORT_MAX)
{
gpio_port = PIN_V85XXPPORT(pin);
gpio_pin = PIN_V85XXPPIN(pin);
value = GPIOBToF_ReadInputDataBit(gpio_port, gpio_pin);
}
return value;
}
static void V85XXP_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
{
GPIO_InitType GPIO_InitStruct = {0};
if (PIN_PORT(pin) >= PIN_V85XXPPORT_MAX)
{
return;
}
/* Configure GPIO_InitStructure */
GPIO_InitStruct.GPIO_Pin = PIN_V85XXPPIN(pin);
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_INPUT;
switch (mode)
{
case PIN_MODE_OUTPUT:
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_OUTPUT_CMOS;
break;
case PIN_MODE_INPUT:
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_INPUT;
break;
case PIN_MODE_INPUT_PULLUP:
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_INOUT_CMOS;
break;
case PIN_MODE_INPUT_PULLDOWN:
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_INOUT_OD;
break;
case PIN_MODE_OUTPUT_OD:
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_INOUT_OD;
break;
default:
break;
}
if (PIN_PORT(pin) == PIN_V85XXPPORT_A)
{
GPIOA_Init(GPIOA, &GPIO_InitStruct);
}
else if (PIN_PORT(pin) < PIN_V85XXPPORT_MAX)
{
GPIOBToF_Init(PIN_V85XXPPORT(pin), &GPIO_InitStruct);
}
}
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;
}
static rt_err_t V85XXP_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
rt_uint32_t mode, void (*hdr)(void *args), void *args)
{
rt_base_t level;
rt_int32_t irqindex = -1;
if (PIN_PORT(pin) > PIN_V85XXPPORT_A)
{
return -RT_ENOSYS;
}
irqindex = bit2bitno(PIN_V85XXPPIN(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 V85XXP_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
{
rt_base_t level;
rt_int32_t irqindex = -1;
if (PIN_PORT(pin) > PIN_V85XXPPORT_A)
{
return -RT_ENOSYS;
}
irqindex = bit2bitno(PIN_V85XXPPIN(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 V85XXP_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled)
{
const struct pin_irq_map *irqmap;
rt_base_t level;
rt_int32_t irqindex = -1;
GPIO_InitType GPIO_InitStruct = {0};
if (PIN_PORT(pin) > PIN_V85XXPPORT_A)
{
return -RT_ENOSYS;
}
GPIO_InitStruct.GPIO_Pin = PIN_V85XXPPIN(pin);
if (enabled == PIN_IRQ_ENABLE)
{
irqindex = bit2bitno(PIN_V85XXPPIN(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;
}
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.GPIO_Pin = PIN_V85XXPPIN(pin);
GPIOA_Init(GPIOA, &GPIO_InitStruct);
irqmap = &pin_irq_map[irqindex];
switch (pin_irq_hdr_tab[irqindex].mode)
{
case PIN_IRQ_MODE_RISING:
PMU_WakeUpPinConfig(PIN_V85XXPPIN(pin), IOA_RISING);
break;
case PIN_IRQ_MODE_FALLING:
PMU_WakeUpPinConfig(PIN_V85XXPPIN(pin), IOA_FALLING);
break;
case PIN_IRQ_MODE_RISING_FALLING:
PMU_WakeUpPinConfig(PIN_V85XXPPIN(pin), IOA_EDGEBOTH);
break;
case PIN_IRQ_MODE_HIGH_LEVEL:
PMU_WakeUpPinConfig(PIN_V85XXPPIN(pin), IOA_HIGH);
break;
case PIN_IRQ_MODE_LOW_LEVEL:
PMU_WakeUpPinConfig(PIN_V85XXPPIN(pin), IOA_LOW);
break;
default:
break;
}
PMU_INTConfig(PMU_INT_IOAEN, ENABLE);
NVIC_SetPriority(irqmap->irqno, 0);
NVIC_EnableIRQ(irqmap->irqno);
pin_irq_enable_mask |= irqmap->pinbit;
rt_hw_interrupt_enable(level);
}
else if (enabled == PIN_IRQ_DISABLE)
{
level = rt_hw_interrupt_disable();
PMU_INTConfig(PMU_INT_IOAEN, DISABLE);
NVIC_DisableIRQ(irqmap->irqno);
rt_hw_interrupt_enable(level);
}
else
{
return -RT_ENOSYS;
}
return RT_EOK;
}
const static struct rt_pin_ops _V85XXP_pin_ops =
{
V85XXP_pin_mode,
V85XXP_pin_write,
V85XXP_pin_read,
V85XXP_pin_attach_irq,
V85XXP_pin_detach_irq,
V85XXP_pin_irq_enable,
V85XXP_pin_get,
};
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 V85XXP_pin_exti_irqhandler()
{
rt_base_t intsts=0;
int i=0;
intsts = PMU_GetIOAAllINTStatus();
for(i=0; i<16; i++)
{
if((1<<i) & intsts)
{
PMU_ClearIOAINTStatus(1<<i);
pin_irq_hdr(bit2bitno(1<<i));
return;
}
}
}
void PMU_IRQHandler()
{
rt_interrupt_enter();
V85XXP_pin_exti_irqhandler();
rt_interrupt_leave();
}
int rt_hw_pin_init(void)
{
GPIO_InitType GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_All;
#if defined(GPIOF)
GPIOBToF_Init(GPIOF, &GPIO_InitStruct);
#endif
#if defined(GPIOE)
GPIOBToF_Init(GPIOE, &GPIO_InitStruct);
#endif
#if defined(GPIOD)
GPIOBToF_Init(GPIOD, &GPIO_InitStruct);
#endif
#if defined(GPIOC)
GPIOBToF_Init(GPIOC, &GPIO_InitStruct);
#endif
#if defined(GPIOB)
GPIOBToF_Init(GPIOB, &GPIO_InitStruct);
#endif
#if defined(GPIOA)
GPIOA_Init(GPIOA, &GPIO_InitStruct);
#endif
return rt_device_pin_register("pin", &_V85XXP_pin_ops, RT_NULL);
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
#endif /* RT_USING_PIN */
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