549 lines
14 KiB
C
549 lines
14 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-08-15 Jonas first version
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*/
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#include <board.h>
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#include "drv_gpio.h"
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#ifdef RT_USING_PIN
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#define PIN_NUM(port, no) (((((port) & 0xFu) << 4) | ((no) & 0xFu)))
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#define PIN_PORT(pin) ((uint8_t)(((pin) >> 4) & 0xFu))
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#define PIN_NO(pin) ((uint8_t)((pin) & 0xFu))
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#define PIN_HKPORTSOURCE(pin) ((uint8_t)(((pin) & 0xF0u) >> 4))
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#define PIN_HKPINSOURCE(pin) ((uint8_t)((pin) & 0xFu))
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#define PIN_HKPORT(pin) ((GPIO_TypeDef *)(GPIOA_BASE + (0x400u * PIN_PORT(pin))))
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#define PIN_HKPIN(pin) ((uint16_t)(1u << PIN_NO(pin)))
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#if defined(GPIOZ)
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#define __HK32_PORT_MAX 12u
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#elif defined(GPIOK)
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#define __HK32_PORT_MAX 11u
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#elif defined(GPIOJ)
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#define __HK32_PORT_MAX 10u
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#elif defined(GPIOI)
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#define __HK32_PORT_MAX 9u
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#elif defined(GPIOH)
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#define __HK32_PORT_MAX 8u
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#elif defined(GPIOG)
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#define __HK32_PORT_MAX 7u
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#elif defined(GPIOF)
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#define __HK32_PORT_MAX 6u
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#elif defined(GPIOE)
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#define __HK32_PORT_MAX 5u
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#elif defined(GPIOD)
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#define __HK32_PORT_MAX 4u
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#elif defined(GPIOC)
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#define __HK32_PORT_MAX 3u
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#elif defined(GPIOB)
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#define __HK32_PORT_MAX 2u
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#elif defined(GPIOA)
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#define __HK32_PORT_MAX 1u
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#else
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#define __HK32_PORT_MAX 0u
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#error Unsupported HK32 GPIO peripheral.
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#endif
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#define PIN_HKPORT_MAX __HK32_PORT_MAX
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static const struct pin_irq_map pin_irq_map[] =
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{
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{GPIO_Pin_0, EXTI_Line0, EXTI0_1_IRQn},
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{GPIO_Pin_1, EXTI_Line1, EXTI0_1_IRQn},
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{GPIO_Pin_2, EXTI_Line2, EXTI2_3_IRQn},
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{GPIO_Pin_3, EXTI_Line3, EXTI2_3_IRQn},
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{GPIO_Pin_4, EXTI_Line4, EXTI4_15_IRQn},
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{GPIO_Pin_5, EXTI_Line5, EXTI4_15_IRQn},
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{GPIO_Pin_6, EXTI_Line6, EXTI4_15_IRQn},
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{GPIO_Pin_7, EXTI_Line7, EXTI4_15_IRQn},
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{GPIO_Pin_8, EXTI_Line8, EXTI4_15_IRQn},
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{GPIO_Pin_9, EXTI_Line9, EXTI4_15_IRQn},
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{GPIO_Pin_10, EXTI_Line10, EXTI4_15_IRQn},
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{GPIO_Pin_11, EXTI_Line11, EXTI4_15_IRQn},
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{GPIO_Pin_12, EXTI_Line12, EXTI4_15_IRQn},
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{GPIO_Pin_13, EXTI_Line13, EXTI4_15_IRQn},
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{GPIO_Pin_14, EXTI_Line14, EXTI4_15_IRQn},
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{GPIO_Pin_15, EXTI_Line15, EXTI4_15_IRQn},
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};
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static struct rt_pin_irq_hdr pin_irq_hdr_tab[] =
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{
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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{-1, 0, RT_NULL, RT_NULL},
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};
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static uint32_t pin_irq_enable_mask = 0;
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#define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
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static void hk32_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
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{
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GPIO_TypeDef *gpio_port;
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uint16_t gpio_pin;
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if (PIN_PORT(pin) < PIN_HKPORT_MAX)
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{
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gpio_port = PIN_HKPORT(pin);
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gpio_pin = PIN_HKPIN(pin);
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GPIO_WriteBit(gpio_port, gpio_pin, (BitAction)value);
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}
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}
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static int hk32_pin_read(rt_device_t dev, rt_base_t pin)
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{
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GPIO_TypeDef *gpio_port;
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uint16_t gpio_pin;
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int value;
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value = PIN_LOW;
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if (PIN_PORT(pin) < PIN_HKPORT_MAX)
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{
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gpio_port = PIN_HKPORT(pin);
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gpio_pin = PIN_HKPIN(pin);
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value = GPIO_ReadInputDataBit(gpio_port, gpio_pin);
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}
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return value;
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}
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static void hk32_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_TypeDef *gpio_port;
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uint16_t gpio_pin;
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if (PIN_PORT(pin) < PIN_HKPORT_MAX)
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{
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gpio_port = PIN_HKPORT(pin);
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gpio_pin = PIN_HKPIN(pin);
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}
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else
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{
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return;
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}
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/* Configure GPIO_InitStructure */
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GPIO_StructInit(&GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = gpio_pin;
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
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GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
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if (mode == PIN_MODE_OUTPUT)
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{
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/* output setting */
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
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}
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else if (mode == PIN_MODE_INPUT)
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{
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/* input setting: not pull. */
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
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}
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else if (mode == PIN_MODE_INPUT_PULLUP)
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{
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/* input setting: pull up. */
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
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GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
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}
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else if (mode == PIN_MODE_INPUT_PULLDOWN)
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{
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/* input setting: pull down. */
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
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GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_DOWN;
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}
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else if (mode == PIN_MODE_OUTPUT_OD)
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{
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/* output setting: od. */
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GPIO_InitStruct.GPIO_OType = GPIO_OType_OD;
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}
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GPIO_Init(gpio_port, &GPIO_InitStruct);
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}
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rt_inline rt_int32_t bit2bitno(rt_uint32_t bit)
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{
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int i;
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for (i = 0; i < 32; i++)
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{
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if ((0x01 << i) == bit)
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{
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return i;
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}
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}
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return -1;
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}
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rt_inline const struct pin_irq_map *get_pin_irq_map(uint32_t pinbit)
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{
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rt_int32_t mapindex = bit2bitno(pinbit);
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if (mapindex < 0 || mapindex >= ITEM_NUM(pin_irq_map))
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{
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return RT_NULL;
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}
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return &pin_irq_map[mapindex];
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};
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static rt_err_t hk32_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
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rt_uint32_t mode, void (*hdr)(void *args), void *args)
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{
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rt_base_t level;
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rt_int32_t irqindex = -1;
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uint16_t gpio_pin;
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if (PIN_PORT(pin) < PIN_HKPORT_MAX)
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{
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gpio_pin = PIN_HKPIN(pin);
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}
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else
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{
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return -RT_ENOSYS;
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}
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irqindex = bit2bitno(gpio_pin);
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if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_map))
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{
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return -RT_ENOSYS;
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}
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level = rt_hw_interrupt_disable();
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if (pin_irq_hdr_tab[irqindex].pin == pin &&
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pin_irq_hdr_tab[irqindex].hdr == hdr &&
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pin_irq_hdr_tab[irqindex].mode == mode &&
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pin_irq_hdr_tab[irqindex].args == args)
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{
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rt_hw_interrupt_enable(level);
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return -RT_EOK;
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}
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if (pin_irq_hdr_tab[irqindex].pin != -1)
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{
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rt_hw_interrupt_enable(level);
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return -RT_EBUSY;
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}
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pin_irq_hdr_tab[irqindex].pin = pin;
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pin_irq_hdr_tab[irqindex].hdr = hdr;
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pin_irq_hdr_tab[irqindex].mode = mode;
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pin_irq_hdr_tab[irqindex].args = args;
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rt_hw_interrupt_enable(level);
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return RT_EOK;
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}
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static rt_err_t hk32_pin_dettach_irq(struct rt_device *device, rt_int32_t pin)
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{
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rt_base_t level;
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rt_int32_t irqindex = -1;
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uint16_t gpio_pin;
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if (PIN_PORT(pin) < PIN_HKPORT_MAX)
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{
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gpio_pin = PIN_HKPIN(pin);
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}
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else
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{
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return -RT_ENOSYS;
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}
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irqindex = bit2bitno(gpio_pin);
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if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_map))
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{
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return -RT_ENOSYS;
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}
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level = rt_hw_interrupt_disable();
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if (pin_irq_hdr_tab[irqindex].pin == -1)
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{
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rt_hw_interrupt_enable(level);
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return RT_EOK;
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}
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pin_irq_hdr_tab[irqindex].pin = -1;
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pin_irq_hdr_tab[irqindex].hdr = RT_NULL;
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pin_irq_hdr_tab[irqindex].mode = 0;
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pin_irq_hdr_tab[irqindex].args = RT_NULL;
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rt_hw_interrupt_enable(level);
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return RT_EOK;
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}
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static rt_err_t hk32_pin_irq_enable(struct rt_device *device, rt_base_t pin,
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rt_uint32_t enabled)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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EXTI_InitTypeDef EXTI_InitStruct;
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NVIC_InitTypeDef NVIC_InitStruct;
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const struct pin_irq_map *irqmap;
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rt_base_t level;
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rt_int32_t irqindex = -1;
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GPIO_TypeDef *gpio_port;
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uint16_t gpio_pin;
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if (PIN_PORT(pin) < PIN_HKPORT_MAX)
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{
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gpio_port = PIN_HKPORT(pin);
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gpio_pin = PIN_HKPIN(pin);
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}
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else
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{
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return -RT_ENOSYS;
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}
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if (enabled == PIN_IRQ_ENABLE)
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{
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irqindex = bit2bitno(gpio_pin);
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if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_map))
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{
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return -RT_ENOSYS;
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}
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level = rt_hw_interrupt_disable();
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if (pin_irq_hdr_tab[irqindex].pin == -1)
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{
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rt_hw_interrupt_enable(level);
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return -RT_ENOSYS;
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}
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irqmap = &pin_irq_map[irqindex];
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/* Configure GPIO_InitStructure */
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GPIO_StructInit(&GPIO_InitStruct);
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EXTI_StructInit(&EXTI_InitStruct);
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GPIO_InitStruct.GPIO_Pin = irqmap->pinbit;
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GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
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EXTI_InitStruct.EXTI_Line = irqmap->pinbit;
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EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStruct.EXTI_LineCmd = ENABLE;
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switch (pin_irq_hdr_tab[irqindex].mode)
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{
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case PIN_IRQ_MODE_RISING:
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GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_DOWN;
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EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising;
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break;
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case PIN_IRQ_MODE_FALLING:
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GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
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EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Falling;
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break;
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case PIN_IRQ_MODE_RISING_FALLING:
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EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
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break;
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}
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GPIO_Init(gpio_port, &GPIO_InitStruct);
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SYSCFG_EXTILineConfig(PIN_HKPORTSOURCE(pin), PIN_HKPINSOURCE(pin));
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EXTI_Init(&EXTI_InitStruct);
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NVIC_InitStruct.NVIC_IRQChannel = irqmap->irqno;
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NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
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NVIC_InitStruct.NVIC_IRQChannelPriority = 3;
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NVIC_Init(&NVIC_InitStruct);
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pin_irq_enable_mask |= irqmap->pinbit;
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rt_hw_interrupt_enable(level);
|
||
|
|
}
|
||
|
|
else if (enabled == PIN_IRQ_DISABLE)
|
||
|
|
{
|
||
|
|
irqmap = get_pin_irq_map(gpio_pin);
|
||
|
|
if (irqmap == RT_NULL)
|
||
|
|
{
|
||
|
|
return -RT_ENOSYS;
|
||
|
|
}
|
||
|
|
|
||
|
|
level = rt_hw_interrupt_disable();
|
||
|
|
|
||
|
|
pin_irq_enable_mask &= ~irqmap->pinbit;
|
||
|
|
|
||
|
|
NVIC_InitStruct.NVIC_IRQChannelCmd = DISABLE;
|
||
|
|
NVIC_InitStruct.NVIC_IRQChannelPriority = 3;
|
||
|
|
|
||
|
|
if ((irqmap->pinbit >= GPIO_Pin_0) && (irqmap->pinbit <= GPIO_Pin_1))
|
||
|
|
{
|
||
|
|
if (!(pin_irq_enable_mask & (GPIO_Pin_0 | GPIO_Pin_1)))
|
||
|
|
{
|
||
|
|
NVIC_InitStruct.NVIC_IRQChannel = irqmap->irqno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if ((irqmap->pinbit >= GPIO_Pin_2) && \
|
||
|
|
(irqmap->pinbit <= GPIO_Pin_3))
|
||
|
|
{
|
||
|
|
if (!(pin_irq_enable_mask & (GPIO_Pin_2 | GPIO_Pin_3)))
|
||
|
|
{
|
||
|
|
NVIC_InitStruct.NVIC_IRQChannel = irqmap->irqno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if ((irqmap->pinbit >= GPIO_Pin_4) && \
|
||
|
|
(irqmap->pinbit <= GPIO_Pin_15))
|
||
|
|
{
|
||
|
|
if (!(pin_irq_enable_mask & (GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | \
|
||
|
|
GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | \
|
||
|
|
GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12 | \
|
||
|
|
GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15)))
|
||
|
|
{
|
||
|
|
NVIC_InitStruct.NVIC_IRQChannel = irqmap->irqno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
NVIC_InitStruct.NVIC_IRQChannel = irqmap->irqno;
|
||
|
|
}
|
||
|
|
|
||
|
|
NVIC_Init(&NVIC_InitStruct);
|
||
|
|
rt_hw_interrupt_enable(level);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return -RT_ENOSYS;
|
||
|
|
}
|
||
|
|
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
const static struct rt_pin_ops _hk32_pin_ops =
|
||
|
|
{
|
||
|
|
hk32_pin_mode,
|
||
|
|
hk32_pin_write,
|
||
|
|
hk32_pin_read,
|
||
|
|
hk32_pin_attach_irq,
|
||
|
|
hk32_pin_dettach_irq,
|
||
|
|
hk32_pin_irq_enable,
|
||
|
|
RT_NULL,
|
||
|
|
};
|
||
|
|
|
||
|
|
rt_inline void pin_irq_hdr(int irqno)
|
||
|
|
{
|
||
|
|
EXTI_ClearITPendingBit(pin_irq_map[irqno].lineno);
|
||
|
|
if (pin_irq_hdr_tab[irqno].hdr)
|
||
|
|
{
|
||
|
|
pin_irq_hdr_tab[irqno].hdr(pin_irq_hdr_tab[irqno].args);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin)
|
||
|
|
{
|
||
|
|
pin_irq_hdr(bit2bitno(GPIO_Pin));
|
||
|
|
}
|
||
|
|
|
||
|
|
void EXTI0_1_IRQHandler(void)
|
||
|
|
{
|
||
|
|
rt_interrupt_enter();
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line0))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_0);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line1))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_1);
|
||
|
|
}
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
void EXTI2_3_IRQHandler(void)
|
||
|
|
{
|
||
|
|
rt_interrupt_enter();
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line2))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_2);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line3))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_3);
|
||
|
|
}
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
void EXTI4_15_IRQHandler(void)
|
||
|
|
{
|
||
|
|
rt_interrupt_enter();
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line4))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_4);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line5))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_5);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line6))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_6);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line7))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_7);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line8))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_8);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line9))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_9);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line10))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_10);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line11))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_11);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line12))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_12);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line13))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_13);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line14))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_14);
|
||
|
|
}
|
||
|
|
if (RESET != EXTI_GetITStatus(EXTI_Line15))
|
||
|
|
{
|
||
|
|
GPIO_EXTI_IRQHandler(GPIO_Pin_15);
|
||
|
|
}
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
int rt_hw_pin_init(void)
|
||
|
|
{
|
||
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
|
||
|
|
#ifdef GPIOA
|
||
|
|
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
|
||
|
|
#endif
|
||
|
|
#ifdef GPIOB
|
||
|
|
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
|
||
|
|
#endif
|
||
|
|
#ifdef GPIOC
|
||
|
|
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
|
||
|
|
#endif
|
||
|
|
#ifdef GPIOD
|
||
|
|
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
|
||
|
|
#endif
|
||
|
|
#ifdef GPIOE
|
||
|
|
RCC_APB2PeriphClockCmd(RCC_APB2PERIPH_GPIOE, ENABLE);
|
||
|
|
#endif
|
||
|
|
#ifdef GPIOF
|
||
|
|
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
|
||
|
|
#endif
|
||
|
|
#ifdef GPIOG
|
||
|
|
RCC_APB2PeriphClockCmd(RCC_APB2PERIPH_GPIOG, ENABLE);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return rt_device_pin_register("pin", &_hk32_pin_ops, RT_NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
INIT_BOARD_EXPORT(rt_hw_pin_init);
|
||
|
|
|
||
|
|
#endif /* RT_USING_PIN */
|