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rt-thread/bsp/imxrt1052-evk/drivers/drv_pin.c

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/*
* File : drv_pin.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2013, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2018-03-13 Liuguang the first version.
* 2018-03-19 Liuguang add GPIO interrupt mode support.
*/
#include "drv_pin.h"
#include "fsl_common.h"
#include "fsl_iomuxc.h"
#include "fsl_gpio.h"
#ifdef RT_USING_PIN
#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
struct rt1052_pin
{
rt_uint16_t pin;
GPIO_Type *gpio;
rt_uint32_t gpio_pin;
};
struct rt1052_irq
{
rt_uint16_t enable;
struct rt_pin_irq_hdr irq_info;
};
#define __ARRAY_LEN(array) (sizeof(array)/sizeof(array[0]))
#define __RT1052_PIN_DEFAULT {0, 0, 0}
#define __RT1052_PIN(INDEX, PORT, PIN) {INDEX, PORT, PIN}
static struct rt_pin_ops rt1052_pin_ops;
static struct rt1052_pin rt1052_pin_map[] =
{
__RT1052_PIN_DEFAULT,
/* GPIO4 */
__RT1052_PIN( 1, GPIO4, 0), /* GPIO_EMC_00 */
__RT1052_PIN( 2, GPIO4, 1), /* GPIO_EMC_01 */
__RT1052_PIN( 3, GPIO4, 2), /* GPIO_EMC_02 */
__RT1052_PIN( 4, GPIO4, 3), /* GPIO_EMC_03 */
__RT1052_PIN( 5, GPIO4, 4), /* GPIO_EMC_04 */
__RT1052_PIN( 6, GPIO4, 5), /* GPIO_EMC_05 */
__RT1052_PIN( 7, GPIO4, 6), /* GPIO_EMC_06 */
__RT1052_PIN( 8, GPIO4, 7), /* GPIO_EMC_07 */
__RT1052_PIN( 9, GPIO4, 8), /* GPIO_EMC_08 */
__RT1052_PIN(10, GPIO4, 9), /* GPIO_EMC_09 */
__RT1052_PIN(11, GPIO4, 10), /* GPIO_EMC_10 */
__RT1052_PIN(12, GPIO4, 11), /* GPIO_EMC_11 */
__RT1052_PIN(13, GPIO4, 12), /* GPIO_EMC_12 */
__RT1052_PIN(14, GPIO4, 13), /* GPIO_EMC_13 */
__RT1052_PIN(15, GPIO4, 14), /* GPIO_EMC_14 */
__RT1052_PIN(16, GPIO4, 15), /* GPIO_EMC_15 */
__RT1052_PIN(17, GPIO4, 16), /* GPIO_EMC_16 */
__RT1052_PIN(18, GPIO4, 17), /* GPIO_EMC_17 */
__RT1052_PIN(19, GPIO4, 18), /* GPIO_EMC_18 */
__RT1052_PIN(20, GPIO4, 19), /* GPIO_EMC_19 */
__RT1052_PIN(21, GPIO4, 20), /* GPIO_EMC_20 */
__RT1052_PIN(22, GPIO4, 21), /* GPIO_EMC_21 */
__RT1052_PIN(23, GPIO4, 22), /* GPIO_EMC_22 */
__RT1052_PIN(24, GPIO4, 23), /* GPIO_EMC_23 */
__RT1052_PIN(25, GPIO4, 24), /* GPIO_EMC_24 */
__RT1052_PIN(26, GPIO4, 25), /* GPIO_EMC_25 */
__RT1052_PIN(27, GPIO4, 26), /* GPIO_EMC_26 */
__RT1052_PIN(28, GPIO4, 27), /* GPIO_EMC_27 */
__RT1052_PIN(29, GPIO4, 28), /* GPIO_EMC_28 */
__RT1052_PIN(30, GPIO4, 29), /* GPIO_EMC_29 */
__RT1052_PIN(31, GPIO4, 30), /* GPIO_EMC_30 */
__RT1052_PIN(32, GPIO4, 31), /* GPIO_EMC_31 */
__RT1052_PIN(33, GPIO3, 18), /* GPIO_EMC_32 */
__RT1052_PIN(34, GPIO3, 19), /* GPIO_EMC_33 */
__RT1052_PIN(35, GPIO3, 20), /* GPIO_EMC_34 */
__RT1052_PIN(36, GPIO3, 21), /* GPIO_EMC_35 */
__RT1052_PIN(37, GPIO3, 22), /* GPIO_EMC_36 */
__RT1052_PIN(38, GPIO3, 23), /* GPIO_EMC_37 */
__RT1052_PIN(39, GPIO3, 24), /* GPIO_EMC_38 */
__RT1052_PIN(40, GPIO3, 25), /* GPIO_EMC_39 */
__RT1052_PIN(41, GPIO3, 26), /* GPIO_EMC_40 */
__RT1052_PIN(42, GPIO3, 27), /* GPIO_EMC_41 */
/* GPIO1 */
__RT1052_PIN(43, GPIO1, 0), /* GPIO_AD_B0_00 */
__RT1052_PIN(44, GPIO1, 1), /* GPIO_AD_B0_01 */
__RT1052_PIN(45, GPIO1, 2), /* GPIO_AD_B0_02 */
__RT1052_PIN(46, GPIO1, 3), /* GPIO_AD_B0_03 */
__RT1052_PIN(47, GPIO1, 4), /* GPIO_AD_B0_04 */
__RT1052_PIN(48, GPIO1, 5), /* GPIO_AD_B0_05 */
__RT1052_PIN(49, GPIO1, 6), /* GPIO_AD_B0_06 */
__RT1052_PIN(50, GPIO1, 7), /* GPIO_AD_B0_07 */
__RT1052_PIN(51, GPIO1, 8), /* GPIO_AD_B0_08 */
__RT1052_PIN(52, GPIO1, 9), /* GPIO_AD_B0_09 */
__RT1052_PIN(53, GPIO1, 10), /* GPIO_AD_B0_10 */
__RT1052_PIN(54, GPIO1, 11), /* GPIO_AD_B0_11 */
__RT1052_PIN(55, GPIO1, 12), /* GPIO_AD_B0_12 */
__RT1052_PIN(56, GPIO1, 13), /* GPIO_AD_B0_13 */
__RT1052_PIN(57, GPIO1, 14), /* GPIO_AD_B0_14 */
__RT1052_PIN(58, GPIO1, 15), /* GPIO_AD_B0_15 */
__RT1052_PIN(59, GPIO1, 16), /* GPIO_AD_B1_00 */
__RT1052_PIN(60, GPIO1, 17), /* GPIO_AD_B1_01 */
__RT1052_PIN(61, GPIO1, 18), /* GPIO_AD_B1_02 */
__RT1052_PIN(62, GPIO1, 19), /* GPIO_AD_B1_03 */
__RT1052_PIN(63, GPIO1, 20), /* GPIO_AD_B1_04 */
__RT1052_PIN(64, GPIO1, 21), /* GPIO_AD_B1_05 */
__RT1052_PIN(65, GPIO1, 22), /* GPIO_AD_B1_06 */
__RT1052_PIN(66, GPIO1, 23), /* GPIO_AD_B1_07 */
__RT1052_PIN(67, GPIO1, 24), /* GPIO_AD_B1_08 */
__RT1052_PIN(68, GPIO1, 25), /* GPIO_AD_B1_09 */
__RT1052_PIN(69, GPIO1, 26), /* GPIO_AD_B1_10 */
__RT1052_PIN(70, GPIO1, 27), /* GPIO_AD_B1_11 */
__RT1052_PIN(71, GPIO1, 28), /* GPIO_AD_B1_12 */
__RT1052_PIN(72, GPIO1, 29), /* GPIO_AD_B1_13 */
__RT1052_PIN(73, GPIO1, 30), /* GPIO_AD_B1_14 */
__RT1052_PIN(74, GPIO1, 31), /* GPIO_AD_B1_15 */
/* GPIO2 */
__RT1052_PIN( 75, GPIO2, 0), /* GPIO_B0_00 */
__RT1052_PIN( 76, GPIO2, 1), /* GPIO_B0_01 */
__RT1052_PIN( 77, GPIO2, 2), /* GPIO_B0_02 */
__RT1052_PIN( 78, GPIO2, 3), /* GPIO_B0_03 */
__RT1052_PIN( 79, GPIO2, 4), /* GPIO_B0_04 */
__RT1052_PIN( 80, GPIO2, 5), /* GPIO_B0_05 */
__RT1052_PIN( 81, GPIO2, 6), /* GPIO_B0_06 */
__RT1052_PIN( 82, GPIO2, 7), /* GPIO_B0_07 */
__RT1052_PIN( 83, GPIO2, 8), /* GPIO_B0_08 */
__RT1052_PIN( 84, GPIO2, 9), /* GPIO_B0_09 */
__RT1052_PIN( 85, GPIO2, 10), /* GPIO_B0_10 */
__RT1052_PIN( 86, GPIO2, 11), /* GPIO_B0_11 */
__RT1052_PIN( 87, GPIO2, 12), /* GPIO_B0_12 */
__RT1052_PIN( 88, GPIO2, 13), /* GPIO_B0_13 */
__RT1052_PIN( 89, GPIO2, 14), /* GPIO_B0_14 */
__RT1052_PIN( 90, GPIO2, 15), /* GPIO_B0_15 */
__RT1052_PIN( 91, GPIO2, 16), /* GPIO_B1_00 */
__RT1052_PIN( 92, GPIO2, 17), /* GPIO_B1_01 */
__RT1052_PIN( 93, GPIO2, 18), /* GPIO_B1_02 */
__RT1052_PIN( 94, GPIO2, 19), /* GPIO_B1_03 */
__RT1052_PIN( 95, GPIO2, 20), /* GPIO_B1_04 */
__RT1052_PIN( 96, GPIO2, 21), /* GPIO_B1_05 */
__RT1052_PIN( 97, GPIO2, 22), /* GPIO_B1_06 */
__RT1052_PIN( 98, GPIO2, 23), /* GPIO_B1_07 */
__RT1052_PIN( 99, GPIO2, 24), /* GPIO_B1_08 */
__RT1052_PIN(100, GPIO2, 25), /* GPIO_B1_09 */
__RT1052_PIN(101, GPIO2, 26), /* GPIO_B1_10 */
__RT1052_PIN(102, GPIO2, 27), /* GPIO_B1_11 */
__RT1052_PIN(103, GPIO2, 28), /* GPIO_B1_12 */
__RT1052_PIN(104, GPIO2, 29), /* GPIO_B1_13 */
__RT1052_PIN(105, GPIO2, 30), /* GPIO_B1_14 */
__RT1052_PIN(106, GPIO2, 31), /* GPIO_B1_15 */
/* GPIO3 */
__RT1052_PIN(107, GPIO3, 0), /* GPIO_SD_B1_00 */
__RT1052_PIN(108, GPIO3, 1), /* GPIO_SD_B1_01 */
__RT1052_PIN(109, GPIO3, 2), /* GPIO_SD_B1_02 */
__RT1052_PIN(110, GPIO3, 3), /* GPIO_SD_B1_03 */
__RT1052_PIN(111, GPIO3, 4), /* GPIO_SD_B1_04 */
__RT1052_PIN(112, GPIO3, 5), /* GPIO_SD_B1_05 */
__RT1052_PIN(113, GPIO3, 6), /* GPIO_SD_B1_06 */
__RT1052_PIN(114, GPIO3, 7), /* GPIO_SD_B1_07 */
__RT1052_PIN(115, GPIO3, 8), /* GPIO_SD_B1_08 */
__RT1052_PIN(116, GPIO3, 9), /* GPIO_SD_B1_09 */
__RT1052_PIN(117, GPIO3, 10), /* GPIO_SD_B1_10 */
__RT1052_PIN(118, GPIO3, 11), /* GPIO_SD_B1_11 */
__RT1052_PIN(119, GPIO3, 12), /* GPIO_SD_B0_00 */
__RT1052_PIN(120, GPIO3, 13), /* GPIO_SD_B0_01 */
__RT1052_PIN(121, GPIO3, 14), /* GPIO_SD_B0_02 */
__RT1052_PIN(122, GPIO3, 15), /* GPIO_SD_B0_03 */
__RT1052_PIN(123, GPIO3, 16), /* GPIO_SD_B0_04 */
__RT1052_PIN(124, GPIO3, 17), /* GPIO_SD_B0_05 */
/* GPIO5 */
__RT1052_PIN(125, GPIO5, 0), /* WAKEUP */
__RT1052_PIN(126, GPIO5, 1), /* PMIC_ON_REQ */
__RT1052_PIN(127, GPIO5, 2) /* PMIC_STBY_REQ */
};
static struct rt1052_irq rt1052_irq_map[] =
{
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} },
{PIN_IRQ_DISABLE, {PIN_IRQ_PIN_NONE, PIN_IRQ_MODE_RISING, RT_NULL, RT_NULL} }
};
void gpio_isr(GPIO_Type* base, rt_uint32_t gpio_pin)
{
if((GPIO_PortGetInterruptFlags(base) & (1 << gpio_pin)) != 0)
{
GPIO_PortClearInterruptFlags(base, gpio_pin);
if(rt1052_irq_map[gpio_pin].irq_info.hdr != RT_NULL)
{
rt1052_irq_map[gpio_pin].irq_info.hdr(rt1052_irq_map[gpio_pin].irq_info.args);
}
}
}
void GPIO1_Combined_0_15_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 0; gpio_pin <= 15; gpio_pin++)
{
gpio_isr(GPIO1, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO1_Combined_16_31_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 16; gpio_pin <= 31; gpio_pin++)
{
gpio_isr(GPIO1, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO2_Combined_0_15_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 0; gpio_pin <= 15; gpio_pin++)
{
gpio_isr(GPIO2, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO2_Combined_16_31_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 16; gpio_pin <= 31; gpio_pin++)
{
gpio_isr(GPIO2, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO3_Combined_0_15_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 0; gpio_pin <= 15; gpio_pin++)
{
gpio_isr(GPIO3, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO3_Combined_16_31_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 16; gpio_pin <= 31; gpio_pin++)
{
gpio_isr(GPIO3, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO4_Combined_0_15_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 0; gpio_pin <= 15; gpio_pin++)
{
gpio_isr(GPIO4, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO4_Combined_16_31_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 16; gpio_pin <= 31; gpio_pin++)
{
gpio_isr(GPIO4, gpio_pin);
}
rt_interrupt_leave();
}
void GPIO5_Combined_0_15_IRQHandler(void)
{
rt_uint8_t gpio_pin;
rt_interrupt_enter();
for(gpio_pin = 0; gpio_pin <= 2; gpio_pin++)
{
gpio_isr(GPIO5, gpio_pin);
}
rt_interrupt_leave();
}
static IRQn_Type rt1052_get_irqnum(GPIO_Type *gpio, rt_uint32_t gpio_pin)
{
IRQn_Type irq_num;
if(gpio == GPIO1)
{
if(gpio_pin <= 15)
{
irq_num = GPIO1_Combined_0_15_IRQn;
}
else
{
irq_num = GPIO1_Combined_16_31_IRQn;
}
}
else if(gpio == GPIO2)
{
if(gpio_pin <= 15)
{
irq_num = GPIO2_Combined_0_15_IRQn;
}
else
{
irq_num = GPIO2_Combined_16_31_IRQn;
}
}
else if(gpio == GPIO3)
{
if(gpio_pin <= 15)
{
irq_num = GPIO3_Combined_0_15_IRQn;
}
else
{
irq_num = GPIO3_Combined_16_31_IRQn;
}
}
else if(gpio == GPIO4)
{
if(gpio_pin <= 15)
{
irq_num = GPIO4_Combined_0_15_IRQn;
}
else
{
irq_num = GPIO4_Combined_16_31_IRQn;
}
}
else if(gpio == GPIO5)
{
if(gpio_pin <= 15)
{
irq_num = GPIO5_Combined_0_15_IRQn;
}
else
{
irq_num = GPIO5_Combined_16_31_IRQn;
}
}
return irq_num;
}
static void rt1052_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;
if((pin > __ARRAY_LEN(rt1052_pin_map)) || (pin == 0))
{
return;
}
if(rt1052_pin_map[pin].gpio != GPIO5)
{
CLOCK_EnableClock(kCLOCK_Iomuxc);
IOMUXC_SetPinMux(0x401F8010U + pin*4, 0x5U, 0, 0, 0, 1);
}
else
{
CLOCK_EnableClock(kCLOCK_IomuxcSnvs);
IOMUXC_SetPinMux(0x400A8000U + (pin-125)*4, 0x5U, 0, 0, 0, 1);
}
gpio.outputLogic = 0;
gpio.interruptMode = kGPIO_NoIntmode;
switch(mode)
{
case PIN_MODE_OUTPUT:
{
config_value = 0x1030U;
gpio.direction = kGPIO_DigitalOutput;
}
break;
case PIN_MODE_INPUT:
{
config_value = 0x1030U;
gpio.direction = kGPIO_DigitalInput;
}
break;
case PIN_MODE_INPUT_PULLDOWN:
{
config_value = 0x1030U;
gpio.direction = kGPIO_DigitalInput;
}
break;
case PIN_MODE_INPUT_PULLUP:
{
config_value = 0x5030U;
gpio.direction = kGPIO_DigitalInput;
}
break;
case PIN_MODE_OUTPUT_OD:
{
config_value = 0x1830U;
gpio.direction = kGPIO_DigitalOutput;
}
break;
}
if(rt1052_pin_map[pin].gpio != GPIO5)
{
IOMUXC_SetPinConfig(0, 0, 0, 0, 0x401F8200U + pin*4, config_value);
}
else
{
IOMUXC_SetPinConfig(0, 0, 0, 0, 0x400A8018U + (pin-125)*4, config_value);
}
GPIO_PinInit(rt1052_pin_map[pin].gpio, rt1052_pin_map[pin].gpio_pin, &gpio);
}
static int rt1052_pin_read(rt_device_t dev, rt_base_t pin)
{
return GPIO_PinReadPadStatus(rt1052_pin_map[pin].gpio, rt1052_pin_map[pin].gpio_pin);
}
static void rt1052_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
{
GPIO_PinWrite(rt1052_pin_map[pin].gpio, rt1052_pin_map[pin].gpio_pin, value);
}
static rt_err_t rt1052_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
rt_uint32_t mode, void (*hdr)(void *args), void *args)
{
struct rt1052_pin* pin_map = RT_NULL;
struct rt1052_irq* irq_map = RT_NULL;
pin_map = &rt1052_pin_map[pin];
irq_map = &rt1052_irq_map[rt1052_pin_map[pin].gpio_pin];
if(pin_map == RT_NULL || irq_map == RT_NULL)
{
return RT_ENOSYS;
}
if(irq_map->enable == PIN_IRQ_ENABLE)
{
return RT_EBUSY;
}
irq_map->irq_info.pin = pin;
irq_map->irq_info.hdr = hdr;
irq_map->irq_info.mode = mode;
irq_map->irq_info.args = args;
return RT_EOK;
}
static rt_err_t rt1052_pin_dettach_irq(struct rt_device *device, rt_int32_t pin)
{
struct rt1052_pin* pin_map = RT_NULL;
struct rt1052_irq* irq_map = RT_NULL;
pin_map = &rt1052_pin_map[pin];
irq_map = &rt1052_irq_map[rt1052_pin_map[pin].gpio_pin];
if(pin_map == RT_NULL || irq_map == RT_NULL)
{
return RT_ENOSYS;
}
if(irq_map->enable == PIN_IRQ_DISABLE)
{
return RT_EOK;
}
irq_map->irq_info.pin = PIN_IRQ_PIN_NONE;
irq_map->irq_info.hdr = RT_NULL;
irq_map->irq_info.mode = PIN_IRQ_MODE_RISING;
irq_map->irq_info.args = RT_NULL;
return RT_EOK;
}
static rt_err_t rt1052_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled)
{
gpio_pin_config_t gpio;
IRQn_Type irq_num;
struct rt1052_pin* pin_map = RT_NULL;
struct rt1052_irq* irq_map = RT_NULL;
pin_map = &rt1052_pin_map[pin];
irq_map = &rt1052_irq_map[rt1052_pin_map[pin].gpio_pin];
if(pin_map == RT_NULL || irq_map == RT_NULL)
{
return RT_ENOSYS;
}
if(enabled == PIN_IRQ_ENABLE)
{
if(irq_map->enable == PIN_IRQ_ENABLE)
{
return RT_EBUSY;
}
if(irq_map->irq_info.pin != pin)
{
return RT_EIO;
}
irq_map->enable = PIN_IRQ_ENABLE;
if(rt1052_pin_map[pin].gpio != GPIO5)
{
CLOCK_EnableClock(kCLOCK_Iomuxc);
IOMUXC_SetPinMux(0x401F8010U + pin*4, 0x5U, 0, 0, 0, 0);
}
else
{
CLOCK_EnableClock(kCLOCK_IomuxcSnvs);
IOMUXC_SetPinMux(0x400A8000U + (pin-125)*4, 0x5U, 0, 0, 0, 0);
}
gpio.direction = kGPIO_DigitalInput;
gpio.outputLogic = 0;
switch(irq_map->irq_info.mode)
{
case PIN_IRQ_MODE_RISING:
{
gpio.interruptMode = kGPIO_IntRisingEdge;
}
break;
case PIN_IRQ_MODE_FALLING:
{
gpio.interruptMode = kGPIO_IntFallingEdge;
}
break;
case PIN_IRQ_MODE_RISING_FALLING:
{
gpio.interruptMode = kGPIO_IntRisingOrFallingEdge;
}
break;
case PIN_IRQ_MODE_HIGH_LEVEL:
{
gpio.interruptMode = kGPIO_IntHighLevel;
}
break;
case PIN_IRQ_MODE_LOW_LEVEL:
{
gpio.interruptMode = kGPIO_IntLowLevel;
}
break;
}
irq_num = rt1052_get_irqnum(rt1052_pin_map[pin].gpio, rt1052_pin_map[pin].gpio_pin);
NVIC_SetPriority(irq_num, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 5, 0));
EnableIRQ(irq_num);
GPIO_PinInit(rt1052_pin_map[pin].gpio, rt1052_pin_map[pin].gpio_pin, &gpio);
GPIO_PortEnableInterrupts(rt1052_pin_map[pin].gpio, 1U << rt1052_pin_map[pin].gpio_pin);
}
else if(enabled == PIN_IRQ_DISABLE)
{
if(irq_map->enable == PIN_IRQ_DISABLE)
{
return RT_EOK;
}
irq_map->enable = PIN_IRQ_DISABLE;
irq_num = rt1052_get_irqnum(rt1052_pin_map[pin].gpio, rt1052_pin_map[pin].gpio_pin);
NVIC_DisableIRQ(irq_num);
}
else
{
return RT_EINVAL;
}
return RT_EOK;
}
int rt_hw_pin_init(void)
{
int ret = RT_EOK;
rt1052_pin_ops.pin_mode = rt1052_pin_mode;
rt1052_pin_ops.pin_read = rt1052_pin_read;
rt1052_pin_ops.pin_write = rt1052_pin_write;
rt1052_pin_ops.pin_attach_irq = rt1052_pin_attach_irq;
rt1052_pin_ops.pin_dettach_irq = rt1052_pin_dettach_irq;
rt1052_pin_ops.pin_irq_enable = rt1052_pin_irq_enable;
ret = rt_device_pin_register("pin", &rt1052_pin_ops, RT_NULL);
return ret;
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
#endif /*RT_USING_PIN */
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