periph_cpu.h
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1 /*
2  * Copyright (C) 2015 HAW Hamburg
3  * 2016 Freie Universität Berlin
4  * 2018 Matthew Blue
5  *
6  * This file is subject to the terms and conditions of the GNU Lesser
7  * General Public License v2.1. See the file LICENSE in the top level
8  * directory for more details.
9  */
10 
23 #ifndef PERIPH_CPU_H
24 #define PERIPH_CPU_H
25 
26 #include "periph_cpu_common.h"
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
36 #define PM_NUM_MODES (5)
37 #define AVR8_PM_SLEEP_MODE_0 SLEEP_MODE_PWR_DOWN
38 #define AVR8_PM_SLEEP_MODE_1 SLEEP_MODE_PWR_SAVE
39 #define AVR8_PM_SLEEP_MODE_2 SLEEP_MODE_STANDBY
40 #define AVR8_PM_SLEEP_MODE_3 SLEEP_MODE_ADC
46 #define GPIO_PIN(x, y) ((x << 4) | y)
47 
51 enum {
52  PORT_A = 0,
53  PORT_B = 1,
54  PORT_C = 2,
55  PORT_D = 3
56 };
57 
63 #define CPU_ATMEGA_EXT_INTS { GPIO_PIN(PORT_D, 2), \
64  GPIO_PIN(PORT_D, 3), \
65  GPIO_PIN(PORT_B, 2) }
66 
70 static inline uint8_t atmega_pin2exti(uint8_t port_num, uint8_t pin_num)
71 {
72  if (port_num == PORT_B) {
73  return 2;
74  }
75 
76  return pin_num - 2;
77 }
78 
82 static inline bool atmega_has_pin_exti(uint8_t port_num, uint8_t pin_num)
83 {
84  switch (port_num) {
85  default:
86  return false;
87  case PORT_D:
88  return ((pin_num == 2) || (pin_num == 3));
89  case PORT_B:
90  return pin_num == 2;
91  }
92 }
93 
98 #define I2C_PORT_REG PORTC
99 #define I2C_PIN_MASK (1 << PORTC0) | (1 << PORTC1)
106 #define EEPROM_SIZE (4096U) /* 4kB */
109 #ifdef __cplusplus
110 }
111 #endif
112 
113 #include "periph_conf.h"
114 #include "default_timer_config.h"
115 
116 #endif /* PERIPH_CPU_H */
@ PORT_B
port B
Definition: periph_cpu.h:48
@ PORT_C
port C
Definition: periph_cpu.h:49
@ PORT_A
port A
Definition: periph_cpu.h:47
@ PORT_D
port D
Definition: periph_cpu.h:50
static bool atmega_has_pin_exti(uint8_t port_num, uint8_t pin_num)
Check if the given pin can be used as external interrupt.
Definition: periph_cpu.h:82
static uint8_t atmega_pin2exti(uint8_t port_num, uint8_t pin_num)
Get the interrupt vector number of the given GPIO pin.
Definition: periph_cpu.h:70
Default timer configuration.