143 lines
2.7 KiB
C
143 lines
2.7 KiB
C
/*
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* Copyright (c) 2006-2022, 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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* 2017-11-24 勤为本 first version
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* 2018-05-11 zhuangwei add gpio interrupt ops
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*/
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#include <rtthread.h>
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#include <drivers/pin.h>
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#include "ls1c_gpio.h"
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#include "ls1c.h"
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#include <rthw.h>
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#ifdef RT_USING_PIN
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void ls1c_pin_mode(struct rt_device *device, rt_base_t pin, rt_uint8_t mode)
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{
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unsigned int gpio = pin;
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if (PIN_MODE_OUTPUT == mode)
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{
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gpio_init(gpio, gpio_mode_output);
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}
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else
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{
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gpio_init(gpio, gpio_mode_input);
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}
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return ;
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}
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void ls1c_pin_write(struct rt_device *device, rt_base_t pin, rt_uint8_t value)
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{
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unsigned int gpio = pin;
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if (PIN_LOW == value)
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{
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gpio_set(gpio, gpio_level_low);
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}
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else
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{
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gpio_set(gpio, gpio_level_high);
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}
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return ;
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}
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rt_int8_t ls1c_pin_read(struct rt_device *device, rt_base_t pin)
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{
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unsigned int gpio = pin;
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rt_int8_t value = PIN_LOW;
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if (0 == gpio_get(gpio))
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{
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value = PIN_LOW;
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}
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else
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{
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value = PIN_HIGH;
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}
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return value;
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}
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rt_err_t ls1c_pin_attach_irq(struct rt_device *device, rt_base_t pin,
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rt_uint8_t mode, void (*hdr)(void *args), void *args)
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{
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unsigned int gpio = pin;
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char irq_name[10];
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rt_uint32_t type;
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switch (mode)
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{
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case PIN_IRQ_MODE_RISING:
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type=IRQ_TYPE_EDGE_RISING;
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break;
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case PIN_IRQ_MODE_FALLING:
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type=IRQ_TYPE_EDGE_FALLING;
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break;
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case PIN_IRQ_MODE_HIGH_LEVEL:
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type=IRQ_TYPE_LEVEL_HIGH;
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break;
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case PIN_IRQ_MODE_LOW_LEVEL:
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type=IRQ_TYPE_LEVEL_LOW;
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break;
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}
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gpio_set_irq_type(gpio, type);
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rt_sprintf(irq_name, "PIN_%d", gpio);
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rt_hw_interrupt_install(LS1C_GPIO_TO_IRQ(gpio), (rt_isr_handler_t)hdr, args, irq_name);
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return RT_EOK;
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}
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rt_err_t ls1c_pin_detach_irq(struct rt_device *device, rt_base_t pin)
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{
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return RT_EOK;
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}
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rt_err_t ls1c_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint8_t enabled)
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{
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unsigned int gpio = pin;
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if (enabled)
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rt_hw_interrupt_umask(LS1C_GPIO_TO_IRQ(gpio));
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else
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rt_hw_interrupt_mask(LS1C_GPIO_TO_IRQ(gpio));
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return RT_EOK;
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}
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const static struct rt_pin_ops _ls1c_pin_ops =
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{
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ls1c_pin_mode,
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ls1c_pin_write,
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ls1c_pin_read,
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ls1c_pin_attach_irq,
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ls1c_pin_detach_irq,
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ls1c_pin_irq_enable,
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RT_NULL,
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};
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int hw_pin_init(void)
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{
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int ret = RT_EOK;
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ret = rt_device_pin_register("pin", &_ls1c_pin_ops, RT_NULL);
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return ret;
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}
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INIT_BOARD_EXPORT(hw_pin_init);
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#endif /*RT_USING_PIN */
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