172 lines
3.6 KiB
C
172 lines
3.6 KiB
C
/*
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* driver.c
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*
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* Created on: Jul 27, 2016
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* Author: tkl
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*/
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#include <stddef.h>
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#include "driver.h"
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#include "adc.h"
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#include "gpio.h"
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#include "i2c.h"
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#include "pwm.h"
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#include "rtc.h"
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#include "spi.h"
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#include "uart.h"
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int drv_open(const struct driver *driver)
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{
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int ret = -1;
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if(NULL == driver)
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return ret;
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switch(driver->driver_type) {
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case DRIVER_TYPE_ADC:
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ret = adc_open((const struct adc *)(driver->device_driver));
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break;
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case DRIVER_TYPE_GPIO:
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ret = gpio_open((const struct gpio *)(driver->device_driver));
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break;
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case DRIVER_TYPE_I2C:
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ret = i2c_open((struct i2c *)(driver->device_driver));
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break;
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case DRIVER_TYPE_PWM:
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ret = pwm_open((const struct pwm *)(driver->device_driver));
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break;
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case DRIVER_TYPE_RTC:
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// ret = rtc_open((const struct rtc *)(driver->device_driver));
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break;
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case DRIVER_TYPE_SPI:
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ret = spi_open((const struct spi *)(driver->device_driver));
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break;
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case DRIVER_TYPE_UART:
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// ret = uart_open((const struct uart *)(driver->device_driver));
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break;
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}
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return ret;
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}
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int drv_close(const struct driver *driver)
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{
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int ret = -1;
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if(NULL == driver)
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return ret;
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switch(driver->driver_type) {
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case DRIVER_TYPE_ADC:
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ret = adc_close((const struct adc *)(driver->device_driver));
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break;
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case DRIVER_TYPE_GPIO:
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ret = gpio_close((const struct gpio *)(driver->device_driver));
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break;
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case DRIVER_TYPE_I2C:
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ret = i2c_close((struct i2c *)(driver->device_driver));
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break;
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case DRIVER_TYPE_PWM:
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ret = pwm_close((const struct pwm *)(driver->device_driver));
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break;
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case DRIVER_TYPE_RTC:
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ret = rtc_close((const struct rtc *)(driver->device_driver));
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break;
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case DRIVER_TYPE_SPI:
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ret = spi_close((const struct spi *)(driver->device_driver));
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break;
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case DRIVER_TYPE_UART:
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ret = uart_close((const struct uart *)(driver->device_driver));
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break;
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}
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return ret;
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}
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int drv_read(const struct driver *driver, char *buffer, int len)
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{
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int ret = -1;
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if(NULL == driver)
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return ret;
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switch(driver->driver_type) {
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case DRIVER_TYPE_ADC:
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break;
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case DRIVER_TYPE_GPIO:
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ret = gpio_read((const struct gpio *)(driver->device_driver));
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if(len > 0) {
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buffer[0] = ret + 0x30;
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ret = 1;
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}
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break;
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case DRIVER_TYPE_I2C:
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break;
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case DRIVER_TYPE_PWM:
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ret = -1;
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break;
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case DRIVER_TYPE_RTC:
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break;
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case DRIVER_TYPE_SPI:
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break;
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case DRIVER_TYPE_UART:
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ret = uart_read((const struct uart *)(driver->device_driver), buffer, len);
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break;
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}
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return ret;
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}
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int drv_write(const struct driver *driver, const char *buffer, int len)
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{
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int ret = -1;
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if(NULL == driver)
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return ret;
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switch(driver->driver_type) {
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case DRIVER_TYPE_ADC:
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break;
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case DRIVER_TYPE_GPIO:
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if(len > 0) {
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char send = 0;
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if((buffer[0] - 0x30) > 0)
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send = 1;
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gpio_write((const struct gpio *)(driver->device_driver), send);
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ret = 1;
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}
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break;
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case DRIVER_TYPE_I2C:
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break;
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case DRIVER_TYPE_PWM:
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ret = -1;
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break;
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case DRIVER_TYPE_RTC:
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break;
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case DRIVER_TYPE_SPI:
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break;
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case DRIVER_TYPE_UART:
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// ret = uart_write((const struct uart *)(driver->device_driver), buffer, len);
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break;
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}
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return ret;
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}
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int drv_ioctl(const struct driver *driver, unsigned int cmd, const void *data)
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{
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int ret = -1;
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if(NULL == driver)
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return ret;
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switch(driver->driver_type) {
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case DRIVER_TYPE_ADC:
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break;
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case DRIVER_TYPE_GPIO:
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break;
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case DRIVER_TYPE_I2C:
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break;
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case DRIVER_TYPE_PWM:
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if(cmd == IOCTL_PWM_SET_DUTY_CYCLE) {
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unsigned int *duty = (unsigned int *)data;
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pwm_set_duty_cycle((const struct pwm *)(driver->device_driver), *duty);
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}
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break;
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case DRIVER_TYPE_RTC:
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break;
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case DRIVER_TYPE_SPI:
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break;
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case DRIVER_TYPE_UART:
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break;
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}
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return ret;
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}
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