From f582a36e4df16d5709943f7df17a900c8bcc12ab Mon Sep 17 00:00:00 2001 From: Kevin O'Connor Date: Wed, 25 May 2016 11:37:40 -0400 Subject: Initial commit of source code. Signed-off-by: Kevin O'Connor --- src/avr/gpio.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 src/avr/gpio.h (limited to 'src/avr/gpio.h') diff --git a/src/avr/gpio.h b/src/avr/gpio.h new file mode 100644 index 00000000..e6cbbd32 --- /dev/null +++ b/src/avr/gpio.h @@ -0,0 +1,42 @@ +#ifndef __AVR_GPIO_H +#define __AVR_GPIO_H + +#include +#include "compiler.h" // __always_inline + +struct gpio_out { + struct gpio_digital_regs *regs; + // gcc (pre v6) does better optimization when uint8_t are bitfields + uint8_t bit : 8; +}; +struct gpio_out gpio_out_setup(uint8_t pin, uint8_t val); +void gpio_out_toggle(struct gpio_out g); +void gpio_out_write(struct gpio_out g, uint8_t val); + +struct gpio_in { + struct gpio_digital_regs *regs; + uint8_t bit; +}; +struct gpio_in gpio_in_setup(uint8_t pin, int8_t pull_up); +uint8_t gpio_in_read(struct gpio_in g); + +struct gpio_pwm { + void *reg; + uint8_t size8; +}; +struct gpio_pwm gpio_pwm_setup(uint8_t pin, uint32_t cycle_time, uint8_t val); +void gpio_pwm_write(struct gpio_pwm g, uint8_t val); + +struct gpio_adc { + uint8_t chan; +}; +struct gpio_adc gpio_adc_setup(uint8_t pin); +uint32_t gpio_adc_sample_time(void); +uint8_t gpio_adc_sample(struct gpio_adc g); +void gpio_adc_clear_sample(struct gpio_adc g); +uint16_t gpio_adc_read(struct gpio_adc g); + +void spi_config(void); +void spi_transfer(char *data, uint8_t len); + +#endif // gpio.h -- cgit v1.2.3-70-g09d2