/* * 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_detach_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_detach_irq = rt1052_pin_detach_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 */