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rt-thread-official/bsp/imxrt/libraries/drivers/drv_gpio.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-4-30 misonyo the first version.
*/
#include <rtthread.h>
#ifdef BSP_USING_GPIO
#include <rthw.h>
#include "drv_gpio.h"
#include "board.h"
#include "fsl_gpio.h"
#include "fsl_iomuxc.h"
#define LOG_TAG "drv.gpio"
#include <drv_log.h>
#if defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL
#error "Please don't define 'FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL'!"
#endif
#define __IMXRT_HDR_DEFAULT {-1, 0, RT_NULL, RT_NULL}
#define PIN_INVALID_CHECK(PORT_INDEX,PIN_NUM) (PORT_INDEX > 4) || ((mask_tab[PORT_INDEX].valid_mask & (1 << PIN_NUM)) == 0)
#if defined(SOC_IMXRT1015_SERIES)
#define muxReg_base 0x401f8024
#define configReg_base 0x401f8198
#elif defined(SOC_IMXRT1020_SERIES)
#define muxReg_base 0x401f8014
#define configReg_base 0x401f8188
#else /* 1050 & 1060 & 1064 series*/
#define MUX_BASE 0x401f8014
#define CONFIG_BASE 0x401f8204
#endif
#define GPIO5_MUX_BASE 0x400A8000
#define GPIO5_CONFIG_BASE 0x400A8018
struct pin_mask
{
GPIO_Type *gpio;
rt_int32_t valid_mask;
};
const struct pin_mask mask_tab[5] =
{
#if defined(SOC_IMXRT1015_SERIES)
{GPIO1, 0xfc00ffff}, /* GPIO1,16~25 not supported */
{GPIO2, 0xffff03f8}, /* GPIO2,0~2,10~15 not supported */
{GPIO3, 0x7ff0000f}, /* GPIO3,4~19 not supported */
{GPIO4, 0x00000000}, /* GPIO4 not supported */
{GPIO5, 0x00000001} /* GPIO5,0,2,3~31 not supported */
#elif defined(SOC_IMXRT1020_SERIES)
{GPIO1, 0xffffffff}, /* GPIO1 */
{GPIO2, 0xffffffff}, /* GPIO2 */
{GPIO3, 0xffffe3ff}, /* GPIO3,10~12 not supported */
{GPIO4, 0x00000000}, /* GPIO4 not supported */
{GPIO5, 0x00000007} /* GPIO5,3~31 not supported */
#else /* 1050 & 1060 & 1064 series*/
{GPIO1, 0xffffffff}, /* GPIO1 */
{GPIO2, 0xffffffff}, /* GPIO2 */
{GPIO3, 0x0fffffff}, /* GPIO3,28~31 not supported */
{GPIO4, 0xffffffff}, /* GPIO4 */
{GPIO5, 0x00000007} /* GPIO5,3~31 not supported */
#endif
};
const rt_int8_t reg_offset[] =
{
#if defined(SOC_IMXRT1015_SERIES)
38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 64, 65, 66, 67, 68, 69,
-1, -1, -1, -1, 0, 1, 2, 3, 4, 5, -1, -1, -1, -1, -1, -1, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, -1, -1, -1, -1,
28, 29, 30, 31, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88,
#elif defined(SOC_IMXRT1020_SERIES)
42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, -1, -1, -1, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92,
#else /* 1050 & 1060 & 1064 series*/
42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73,
74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,100,101,102,103,104,105,
112,113,114,115,116,117,118,119,120,121,122,123,106,107,108,109,110,111, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, -1, -1, -1, -1,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
#endif
};
static const IRQn_Type irq_tab[10] =
{
GPIO1_Combined_0_15_IRQn,
GPIO1_Combined_16_31_IRQn,
GPIO2_Combined_0_15_IRQn,
GPIO2_Combined_16_31_IRQn,
GPIO3_Combined_0_15_IRQn,
GPIO3_Combined_16_31_IRQn,
GPIO4_Combined_0_15_IRQn,
GPIO4_Combined_16_31_IRQn,
GPIO5_Combined_0_15_IRQn,
GPIO5_Combined_16_31_IRQn
};
static struct rt_pin_irq_hdr hdr_tab[] =
{
/* GPIO1 */
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
/* GPIO2 */
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
/* GPIO3 */
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
/* GPIO4 */
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
/* GPIO5 */
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
__IMXRT_HDR_DEFAULT,
};
static void imxrt_isr(rt_int16_t index_offset, rt_int8_t pin_start, GPIO_Type *base)
{
rt_int32_t isr_status, index;
rt_int8_t i, pin_end;
pin_end = pin_start + 15;
isr_status = GPIO_PortGetInterruptFlags(base) & base->IMR;
for (i = pin_start; i <= pin_end ; i++)
{
if (isr_status & (1 << i))
{
GPIO_PortClearInterruptFlags(base, (1 << i));
index = index_offset + i;
if (hdr_tab[index].hdr != RT_NULL)
{
hdr_tab[index].hdr(hdr_tab[index].args);
}
}
}
}
/* GPIO1 index offset is 0 */
void GPIO1_Combined_0_15_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(0, 0, GPIO1);
rt_interrupt_leave();
}
void GPIO1_Combined_16_31_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(0, 15, GPIO1);
rt_interrupt_leave();
}
/* GPIO2 index offset is 32 */
void GPIO2_Combined_0_15_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(32, 0, GPIO2);
rt_interrupt_leave();
}
void GPIO2_Combined_16_31_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(32, 15, GPIO2);
rt_interrupt_leave();
}
/* GPIO3 index offset is 64 */
void GPIO3_Combined_0_15_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(64, 0, GPIO3);
rt_interrupt_leave();
}
void GPIO3_Combined_16_31_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(64, 15, GPIO3);
rt_interrupt_leave();
}
#ifdef GPIO4
/* GPIO4 index offset is 96 */
void GPIO4_Combined_0_15_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(96, 0, GPIO4);
rt_interrupt_leave();
}
void GPIO4_Combined_16_31_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(96, 15, GPIO4);
rt_interrupt_leave();
}
#endif
/* GPIO5 index offset is 128 */
void GPIO5_Combined_0_15_IRQHandler(void)
{
rt_interrupt_enter();
imxrt_isr(128, 0, GPIO5);
rt_interrupt_leave();
}
static void imxrt_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
{
gpio_pin_config_t gpio;
rt_uint32_t config_value = 0;
rt_int8_t port, pin_num;
port = pin >> 5;
pin_num = pin & 31;
if (PIN_INVALID_CHECK(port, pin_num))
{
LOG_D("invalid pin,rtt pin: %d,port: %d,pin: %d \n", pin,port + 1,pin_num);
return;
}
gpio.outputLogic = 0;
gpio.interruptMode = kGPIO_NoIntmode;
switch (mode)
{
case PIN_MODE_OUTPUT:
{
gpio.direction = kGPIO_DigitalOutput;
config_value = 0x0030U; /* Drive Strength R0/6 */
}
break;
case PIN_MODE_INPUT:
{
gpio.direction = kGPIO_DigitalInput;
config_value = 0x0830U; /* Open Drain Enable */
}
break;
case PIN_MODE_INPUT_PULLDOWN:
{
gpio.direction = kGPIO_DigitalInput;
config_value = 0x3030U; /* 100K Ohm Pull Down */
}
break;
case PIN_MODE_INPUT_PULLUP:
{
gpio.direction = kGPIO_DigitalInput;
config_value = 0xB030U; /* 100K Ohm Pull Up */
}
break;
case PIN_MODE_OUTPUT_OD:
{
gpio.direction = kGPIO_DigitalOutput;
config_value = 0x0830U; /* Open Drain Enable */
}
break;
}
if (mask_tab[port].gpio != GPIO5)
{
CLOCK_EnableClock(kCLOCK_Iomuxc);
IOMUXC_SetPinMux(MUX_BASE + reg_offset[pin] * 4, 0x5U, 0, 0, CONFIG_BASE + reg_offset[pin] * 4, 1);
IOMUXC_SetPinConfig(MUX_BASE + reg_offset[pin] * 4, 0x5U, 0, 0, CONFIG_BASE + reg_offset[pin] * 4, config_value);
}
else
{
CLOCK_EnableClock(kCLOCK_IomuxcSnvs);
IOMUXC_SetPinMux(GPIO5_MUX_BASE + pin_num * 4, 0x5U, 0, 0, GPIO5_CONFIG_BASE + pin_num * 4, 1);
IOMUXC_SetPinConfig(GPIO5_MUX_BASE + pin_num * 4, 0x5U, 0, 0, GPIO5_CONFIG_BASE + pin_num * 4, config_value);
}
GPIO_PinInit(mask_tab[port].gpio, pin_num, &gpio);
}
static int imxrt_pin_read(rt_device_t dev, rt_base_t pin)
{
int value;
rt_int8_t port, pin_num;
value = PIN_LOW;
port = pin >> 5;
pin_num = pin & 31;
if (PIN_INVALID_CHECK(port, pin_num))
{
LOG_D("invalid pin,rtt pin: %d,port: %d,pin: %d \n", pin,port + 1,pin_num);
return value;
}
return GPIO_PinReadPadStatus(mask_tab[port].gpio, pin_num);
}
static void imxrt_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
{
rt_int8_t port, pin_num;
port = pin >> 5;
pin_num = pin & 31;
if (PIN_INVALID_CHECK(port, pin_num))
{
LOG_D("invalid pin,rtt pin: %d,port: %d,pin: %d \n", pin,port + 1,pin_num);
return;
}
GPIO_PinWrite(mask_tab[port].gpio, pin_num, value);
}
static rt_err_t imxrt_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_int8_t port, pin_num;
port = pin >> 5;
pin_num = pin & 31;
if (PIN_INVALID_CHECK(port, pin_num))
{
LOG_D("invalid pin,rtt pin: %d,port: %d,pin: %d \n", pin,port + 1,pin_num);
return RT_ENOSYS;
}
level = rt_hw_interrupt_disable();
if (hdr_tab[pin].pin == pin &&
hdr_tab[pin].hdr == hdr &&
hdr_tab[pin].mode == mode &&
hdr_tab[pin].args == args)
{
rt_hw_interrupt_enable(level);
return RT_EOK;
}
hdr_tab[pin].pin = pin;
hdr_tab[pin].hdr = hdr;
hdr_tab[pin].mode = mode;
hdr_tab[pin].args = args;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t imxrt_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
{
rt_base_t level;
rt_int8_t port, pin_num;
port = pin >> 5;
pin_num = pin & 31;
if (PIN_INVALID_CHECK(port, pin_num))
{
LOG_D("invalid pin,rtt pin: %d,port: %d,pin: %d \n", pin,port + 1,pin_num);
return RT_ENOSYS;
}
level = rt_hw_interrupt_disable();
if (hdr_tab[pin].pin == -1)
{
rt_hw_interrupt_enable(level);
return RT_EOK;
}
hdr_tab[pin].pin = -1;
hdr_tab[pin].hdr = RT_NULL;
hdr_tab[pin].mode = 0;
hdr_tab[pin].args = RT_NULL;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t imxrt_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled)
{
gpio_interrupt_mode_t int_mode;
rt_int8_t port, pin_num, irq_index;
port = pin >> 5;
pin_num = pin & 31;
if (PIN_INVALID_CHECK(port, pin_num))
{
LOG_D("invalid pin,rtt pin: %d,port: %d,pin: %d \n", pin,port + 1,pin_num);
return RT_ENOSYS;
}
if (hdr_tab[pin].pin == -1)
{
LOG_D("rtt pin: %d callback function not initialized!\n", pin);
return RT_ENOSYS;
}
if (enabled == PIN_IRQ_ENABLE)
{
switch (hdr_tab[pin].mode)
{
case PIN_IRQ_MODE_RISING:
int_mode = kGPIO_IntRisingEdge;
break;
case PIN_IRQ_MODE_FALLING:
int_mode = kGPIO_IntFallingEdge;
break;
case PIN_IRQ_MODE_RISING_FALLING:
int_mode = kGPIO_IntRisingOrFallingEdge;
break;
case PIN_IRQ_MODE_HIGH_LEVEL:
int_mode = kGPIO_IntHighLevel;
break;
case PIN_IRQ_MODE_LOW_LEVEL:
int_mode = kGPIO_IntLowLevel;
break;
default:
int_mode = kGPIO_IntRisingEdge;
break;
}
irq_index = (port << 1) + (pin_num >> 4);
GPIO_PinSetInterruptConfig(mask_tab[port].gpio, pin_num, int_mode);
GPIO_PortEnableInterrupts(mask_tab[port].gpio, 1U << pin_num);
NVIC_SetPriority(irq_tab[irq_index], NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 5, 0));
EnableIRQ(irq_tab[irq_index]);
}
else if (enabled == PIN_IRQ_DISABLE)
{
GPIO_PortDisableInterrupts(mask_tab[port].gpio, 1U << pin_num);
}
else
{
return RT_EINVAL;
}
return RT_EOK;
}
const static struct rt_pin_ops imxrt_pin_ops =
{
imxrt_pin_mode,
imxrt_pin_write,
imxrt_pin_read,
imxrt_pin_attach_irq,
imxrt_pin_detach_irq,
imxrt_pin_irq_enable,
RT_NULL,
};
int rt_hw_pin_init(void)
{
int ret = RT_EOK;
ret = rt_device_pin_register("pin", &imxrt_pin_ops, RT_NULL);
return ret;
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
#endif /* BSP_USING_GPIO */
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