SSD1306 OLED display driver  1.6.1
This library is developed to control SSD1306/SSD1331/SSD1351/IL9163/PCD8554 RGB i2c/spi LED displays
io.h
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1 /*
2  MIT License
3 
4  Copyright (c) 2018, Alexey Dynda
5 
6  Permission is hereby granted, free of charge, to any person obtaining a copy
7  of this software and associated documentation files (the "Software"), to deal
8  in the Software without restriction, including without limitation the rights
9  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  copies of the Software, and to permit persons to whom the Software is
11  furnished to do so, subject to the following conditions:
12 
13  The above copyright notice and this permission notice shall be included in all
14  copies or substantial portions of the Software.
15 
16  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  SOFTWARE.
23 */
24 
29 #ifndef _SSD1306_AVR_IO_H_
30 #define _SSD1306_AVR_IO_H_
31 
32 #if defined(__AVR__) && !defined(ARDUINO)
33 #include <avr/io.h>
34 #include <avr/interrupt.h>
35 #include <avr/pgmspace.h>
36 #include <avr/sleep.h>
37 #include <avr/eeprom.h>
38 #include <util/delay.h>
39 #include <stdint.h>
40 #include <stdlib.h>
41 #include <string.h>
42 
43 #define LOW 0
44 #define HIGH 1
45 #define INPUT 0
46 #define OUTPUT 1
47 
48 #if defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
49 
50  #define SSD1306_I2C_SW_SUPPORTED
51 
52  #define SSD1306_USI_SPI_SUPPORTED
53  /* Define lcdint as smallest types to reduce memo usage on tiny controllers. *
54  * Remember, that this can cause issues with large lcd displays, i.e. 320x240*/
55  #define LCDINT_TYPES_DEFINED
56  typedef int8_t lcdint_t;
57  typedef uint8_t lcduint_t;
58 #elif defined(__AVR_ATmega328P__)
59 
60  #define SSD1306_I2C_SW_SUPPORTED
61 
62  #define SSD1306_TWI_SUPPORTED
63 
64  #define SSD1306_AVR_SPI_SUPPORTED
65 #else
66 
67  #define SSD1306_I2C_SW_SUPPORTED
68 
69  #define SSD1306_TWI_SUPPORTED
70 
71  #define SSD1306_AVR_SPI_SUPPORTED
72 #endif
73 
74 #ifdef __cplusplus
75 extern "C" {
76 #endif
77 
78 // not implemented functions for plain AVR
79 static inline int digitalRead(int pin) { return LOW; };
80 static inline int analogRead(int pin) { return 0; };
81 static inline uint32_t millis() { return 0; };
82 static inline void randomSeed(int seed) { };
83 static inline void attachInterrupt(int pin, void (*interrupt)(), int level) { };
84 
85 // implemented functions for plain AVR
86 #define delay(ms) _delay_ms(ms)
87 #define delayMicroseconds(us) _delay_us(us)
88 
89 void digitalWrite(int pin, int level);
90 void pinMode(int pin, int mode);
91 
92 #ifdef __cplusplus
93 }
94 #endif
95 
96 #ifdef __cplusplus
97 static inline int random(int max) { return 0; };
98 static inline int random(int min, int max) { return 0; };
99 #endif
100 
101 #endif
102 
103 #endif
104 
unsigned int lcduint_t
Definition: io.h:42
#define max(a, b)
#define min(a, b)
int lcdint_t
Definition: io.h:40