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/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-03-24 YangXi the first version.
*/
#include "drv_pin.h"
#include "fsl_common.h"
#include "fsl_gpio.h"
#include "fsl_port.h"
#include "fsl_inputmux.h"
#ifdef RT_USING_PIN
#define DBG_TAG "drv.pin"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#define GET_GPIO_PORT(x) ((x) / 32)
#define GET_GPIO_PIN(x) ((x) % 32)
static struct rt_pin_ops mcx_pin_ops;
static GPIO_Type *GPIO_TYPE_TBL[] = GPIO_BASE_PTRS;
static PORT_Type *PORT_TYPE_TBL[] = PORT_BASE_PTRS;
static IRQn_Type IRQ_TYPE_TBL[] = GPIO_IRQS;
#define PIN2GPIO(x) GPIO_TYPE_TBL[GET_GPIO_PORT(x)]
#define PIN2PORT(x) PORT_TYPE_TBL[GET_GPIO_PORT(x)]
#define PIN2IRQ(x) IRQ_TYPE_TBL[GET_GPIO_PORT(x)]
struct rt_pin_irq_hdr pin_irq_hdr_tab[32*5] = {0};
static void mcx_pin_mode(rt_device_t dev, rt_base_t pin, rt_uint8_t mode)
{
port_pin_config_t port_pin_config = {0};
gpio_pin_config_t gpio_pin_config = {0};
port_pin_config.mux = kPORT_MuxAlt0;
switch (mode)
{
case PIN_MODE_OUTPUT:
{
gpio_pin_config.pinDirection = kGPIO_DigitalOutput;
port_pin_config.pullSelect = kPORT_PullDisable;
port_pin_config.inputBuffer = kPORT_InputBufferEnable;
}
break;
case PIN_MODE_INPUT:
{
gpio_pin_config.pinDirection = kGPIO_DigitalInput;
port_pin_config.pullSelect = kPORT_PullDisable;
port_pin_config.inputBuffer = kPORT_InputBufferEnable;
}
break;
case PIN_MODE_INPUT_PULLDOWN:
{
gpio_pin_config.pinDirection = kGPIO_DigitalInput;
port_pin_config.pullSelect = kPORT_PullDown;
port_pin_config.pullValueSelect = kPORT_LowPullResistor;
port_pin_config.inputBuffer = kPORT_InputBufferEnable;
}
break;
case PIN_MODE_INPUT_PULLUP:
{
gpio_pin_config.pinDirection = kGPIO_DigitalInput;
port_pin_config.pullSelect = kPORT_PullUp;
port_pin_config.pullValueSelect = kPORT_LowPullResistor;
port_pin_config.inputBuffer = kPORT_InputBufferEnable;
}
break;
case PIN_MODE_OUTPUT_OD:
{
port_pin_config.openDrainEnable = kPORT_OpenDrainEnable;
gpio_pin_config.pinDirection = kGPIO_DigitalOutput;
port_pin_config.inputBuffer = kPORT_InputBufferEnable;
}
break;
}
PORT_SetPinConfig(PIN2PORT(pin), GET_GPIO_PIN(pin), &port_pin_config);
GPIO_PinInit(PIN2GPIO(pin), GET_GPIO_PIN(pin) , &gpio_pin_config);
}
static void mcx_pin_write(rt_device_t dev, rt_base_t pin, rt_uint8_t value)
{
GPIO_PinWrite(PIN2GPIO(pin), GET_GPIO_PIN(pin), value);
}
static rt_ssize_t mcx_pin_read(rt_device_t dev, rt_base_t pin)
{
return GPIO_PinRead(PIN2GPIO(pin), GET_GPIO_PIN(pin));
}
rt_inline void pin_irq_handler(uint8_t gpio_idx)
{
int i;
rt_interrupt_enter();
uint32_t INTFLAG = GPIO_GpioGetInterruptFlags(GPIO_TYPE_TBL[gpio_idx]);
GPIO_GpioClearInterruptFlags(GPIO_TYPE_TBL[gpio_idx], INTFLAG);
for(i=0; i<ARRAY_SIZE(pin_irq_hdr_tab); i++)
{
if((INTFLAG & (1<<GET_GPIO_PIN(pin_irq_hdr_tab[i].pin))) && pin_irq_hdr_tab[i].hdr && (GET_GPIO_PORT(pin_irq_hdr_tab[i].pin)) == gpio_idx)
{
pin_irq_hdr_tab[i].hdr(pin_irq_hdr_tab[i].args);
}
}
rt_interrupt_leave();
}
void GPIO0_IRQHandler(void)
{
pin_irq_handler(0);
}
void GPIO1_IRQHandler(void)
{
pin_irq_handler(1);
}
void GPIO2_IRQHandler(void)
{
pin_irq_handler(2);
}
void GPIO3_IRQHandler(void)
{
pin_irq_handler(3);
}
void GPIO4_IRQHandler(void)
{
pin_irq_handler(4);
}
static rt_err_t mcx_pin_attach_irq(struct rt_device *device, rt_base_t pin, rt_uint8_t mode, void (*hdr)(void *args), void *args)
{
switch (mode)
{
case PIN_IRQ_MODE_RISING:
GPIO_SetPinInterruptConfig(PIN2GPIO(pin), GET_GPIO_PIN(pin), kGPIO_InterruptRisingEdge);
break;
case PIN_IRQ_MODE_FALLING:
GPIO_SetPinInterruptConfig(PIN2GPIO(pin), GET_GPIO_PIN(pin), kGPIO_InterruptFallingEdge);
break;
case PIN_IRQ_MODE_RISING_FALLING:
GPIO_SetPinInterruptConfig(PIN2GPIO(pin), GET_GPIO_PIN(pin), kGPIO_InterruptEitherEdge);
break;
case PIN_IRQ_MODE_HIGH_LEVEL:
GPIO_SetPinInterruptConfig(PIN2GPIO(pin), GET_GPIO_PIN(pin), kGPIO_InterruptLogicOne);
break;
case PIN_IRQ_MODE_LOW_LEVEL:
GPIO_SetPinInterruptConfig(PIN2GPIO(pin), GET_GPIO_PIN(pin), kGPIO_InterruptLogicZero);
break;
}
pin_irq_hdr_tab[pin].pin = pin;
pin_irq_hdr_tab[pin].mode = mode;
pin_irq_hdr_tab[pin].hdr = hdr;
pin_irq_hdr_tab[pin].args = args;
return RT_EOK;
}
static rt_err_t mcx_pin_detach_irq(struct rt_device *device, rt_base_t pin)
{
GPIO_SetPinInterruptConfig(PIN2GPIO(pin), GET_GPIO_PIN(pin), kGPIO_InterruptStatusFlagDisabled);
return RT_EOK;
}
static rt_err_t mcx_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint8_t enabled)
{
if(enabled)
{
EnableIRQ(PIN2IRQ(pin));
}
else
{
DisableIRQ(PIN2IRQ(pin));
}
return RT_EOK;
}
int rt_hw_pin_init(void)
{
int ret = RT_EOK;
mcx_pin_ops.pin_mode = mcx_pin_mode;
mcx_pin_ops.pin_read = mcx_pin_read;
mcx_pin_ops.pin_write = mcx_pin_write;
mcx_pin_ops.pin_attach_irq = mcx_pin_attach_irq;
mcx_pin_ops.pin_detach_irq = mcx_pin_detach_irq;
mcx_pin_ops.pin_irq_enable = mcx_pin_irq_enable;
mcx_pin_ops.pin_get = RT_NULL,
ret = rt_device_pin_register("pin", &mcx_pin_ops, RT_NULL);
return ret;
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
#endif /*RT_USING_PIN */
// end file
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