SSD1306 OLED display driver 1.7.8 This library is developed to control SSD1306/SSD1331/SSD1351/IL9163/PCD8554 RGB i2c/spi LED displays

oled_template.c
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
25 #include "oled_template.h"
26 #include "lcd_common.h"
27 #include "intf/ssd1306_interface.h"
28 #include "intf/spi/ssd1306_spi.h"
29 #include "ssd1306_hal/io.h"
30 #ifdef SDL_EMULATION
31 #include "sdl_core.h"
32 #endif
33
34 extern uint16_t ssd1306_color;
35
36 static const PROGMEM uint8_t s_oled_WxH_initData[] =
37 {
38 #ifdef SDL_EMULATION
39 SDL_LCD_TEMPLATE,
40 0x00,
41 #endif
42 // Specify display initialization commands here
43 // The commands should be in format, required by
44 // ssd1306_configureI2cDisplay() or ssd1306_configureSpiDisplay()
45 // functions. Refer to their documenation.
46 0x00, 0x00,
47 };
48
51
52 static uint8_t s_column;
53 static uint8_t s_page;
54
55 // The function must set block to draw data
56 static void template_setBlock_compat(lcduint_t x, lcduint_t y, lcduint_t w)
57 {
58 uint8_t rx = w ? (x + w - 1) : (ssd1306_lcd.width - 1);
59 s_column = x;
60 s_page = y;
61 ssd1306_intf.start();
62 ssd1306_spiDataMode(0);
63 ssd1306_intf.send(0x00); // Send column addr command to controller
64 ssd1306_intf.send(x);
65 ssd1306_intf.send(rx < ssd1306_lcd.width ? rx : (ssd1306_lcd.width - 1));
66 ssd1306_intf.send(0x00); // Replace with row addr command to controller
67 ssd1306_intf.send(y<<3);
68 ssd1306_intf.send(((y<<3) + 7) < ssd1306_lcd.height ? ((y<<3) + 7) : (ssd1306_lcd.height - 1));
69 ssd1306_spiDataMode(1);
70 }
71
72 static void template_nextPage_compat(void)
73 {
74 ssd1306_intf.stop();
75 template_setBlock_compat(s_column,s_page+1,0);
76 }
77
78 static void template_sendPixels(uint8_t data)
79 {
80 for (uint8_t i=8; i>0; i--)
81 {
82 if ( data & 0x01 )
83 {
84 ssd1306_intf.send( (uint8_t)ssd1306_color );
85 }
86 else
87 {
88 ssd1306_intf.send( 0B00000000 );
89 }
90 data >>= 1;
91 }
92 }
93
94 static void template_sendPixelsBuffer(const uint8_t *buffer, uint16_t len)
95 {
96 while(len--)
97 {
98 template_sendPixels(*buffer);
99 buffer++;
100 }
101 }
102
105
106 static void template_setBlock(lcduint_t x, lcduint_t y, lcduint_t w)
107 {
108 uint8_t rx = w ? (x + w - 1) : (ssd1306_lcd.width - 1);
109 ssd1306_intf.start();
110 ssd1306_spiDataMode(0);
111 ssd1306_intf.send(0x00); // Send column address command here
112 ssd1306_intf.send(x);
113 ssd1306_intf.send(rx < ssd1306_lcd.width ? rx : (ssd1306_lcd.width - 1));
114 ssd1306_intf.send(0x00); // Send row address command here
115 ssd1306_intf.send(y);
116 ssd1306_intf.send(ssd1306_lcd.height - 1);
117 ssd1306_spiDataMode(1);
118 }
119
120 static void template_nextPage(void)
121 {
122 }
123
124 void template_setMode(lcd_mode_t mode)
125 {
126 if (mode == LCD_MODE_NORMAL)
127 {
128 ssd1306_lcd.set_block = template_setBlock;
129 ssd1306_lcd.next_page = template_nextPage;
130 }
131 else
132 {
133 ssd1306_lcd.set_block = template_setBlock_compat;
134 ssd1306_lcd.next_page = template_nextPage_compat;
135 }
136 // Send command to update controller
137 // ssd1306_intf.start();
138 // ssd1306_spiDataMode(0);
139 // ssd1306_intf.send( SSD1331_SEGREMAP );
140 // ssd1306_intf.stop();
141 return;
142 }
143
144 void template_WxH_init()
145 {
146 ssd1306_lcd.type = LCD_TYPE_CUSTOM;
147 ssd1306_lcd.width = 96; // specify width
148 ssd1306_lcd.height = 64; // specify height
149 // Set functions for compatible mode
150 ssd1306_lcd.set_block = template_setBlock_compat;
151 ssd1306_lcd.next_page = template_nextPage_compat;
152 ssd1306_lcd.send_pixels1 = template_sendPixels;
153 ssd1306_lcd.send_pixels_buffer1 = template_sendPixelsBuffer;
154 // Set function for 8-bit mode
155 ssd1306_lcd.send_pixels8 = ssd1306_intf.send;
156 ssd1306_lcd.set_mode = template_setMode;
157 // Use one of 2 functions for initialization below
158 // Please, read help on this functions and read datasheet before you decide, which
159 // one needs to be used. For example, ssd1331 is OK with ssd1306_configureI2cDisplay(),
160 // while st7735 can be initialized only with ssd1306_configureSpiDisplay().
161 ssd1306_configureI2cDisplay(s_oled_WxH_initData, sizeof(s_oled_WxH_initData));
162 // ssd1306_configureSpiDisplay(s_oled_WxH_initData, sizeof(s_oled_WxH_initData));
163 }
164
165 void template_WxH_spi_init(int8_t rstPin, int8_t cesPin, int8_t dcPin)
166 {
167 if (rstPin >=0)
168 {
169 ssd1306_resetController( rstPin, 10 );
170 }
171 ssd1306_spiInit(cesPin, dcPin);
172 template_WxH_init();
173 }
template_setMode
void template_setMode(lcd_mode_t mode)
Sets GDRAM autoincrement mode.
Definition: oled_template.c:124
ssd1306_interface_t::send
void(* send)(uint8_t data)
Definition: ssd1306_interface.h:70
lcd_common.h
LCD_MODE_NORMAL
Definition: lcd_common.h:75
ssd1306_configureI2cDisplay
void ssd1306_configureI2cDisplay(const uint8_t *config, uint8_t configSize)
Sends configuration being passed to lcd display i2c/spi controller.
Definition: lcd_common.c:41
template_WxH_init
void template_WxH_init(void)
Inits WxH TEMPLATE OLED display (based on TEMPLATE controller).
Definition: oled_template.c:144
ssd1306_interface_t::stop
void(* stop)(void)
Definition: ssd1306_interface.h:65
ssd1306_lcd_t::set_block
void(* set_block)(lcduint_t x, lcduint_t y, lcduint_t w)
Sets block in RAM of lcd display controller to write data to.
Definition: lcd_common.h:114
io.h
ssd1306_lcd_t::send_pixels8
void(* send_pixels8)(uint8_t data)
Sends RGB pixel encoded in 3-3-2 format to OLED driver. Sends RGB pixel encoded in 3-3-2 format to OL...
Definition: lcd_common.h:142
ssd1306_spiDataMode
void ssd1306_spiDataMode(uint8_t mode)
Definition: ssd1306_spi.c:50
lcd_mode_t
lcd_mode_t
Definition: lcd_common.h:69
ssd1306_lcd_t::send_pixels_buffer1
void(* send_pixels_buffer1)(const uint8_t *buffer, uint16_t len)
Definition: lcd_common.h:135
ssd1306_resetController
void ssd1306_resetController(int8_t rstPin, uint8_t delayMs)
Does hardware reset for oled controller.
Definition: lcd_common.c:82
ssd1306_lcd_t::send_pixels1
void(* send_pixels1)(uint8_t data)
Definition: lcd_common.h:128
ssd1306_spi.h
ssd1306_interface_t::start
void(* start)(void)
Definition: ssd1306_interface.h:61
ssd1306_spiInit
void ssd1306_spiInit(int8_t cesPin, int8_t dcPin)
Definition: ssd1306_spi.c:37
ssd1306_lcd
ssd1306_lcd_t ssd1306_lcd
Definition: lcd_common.c:32
template_WxH_spi_init
void template_WxH_spi_init(int8_t rstPin, int8_t cesPin, int8_t dcPin)
Inits WxH TEMPLATE OLED display over spi (based on TEMPLATE controller).
Definition: oled_template.c:165
ssd1306_intf
ssd1306_interface_t ssd1306_intf
Definition: ssd1306_interface.c:29
ssd1306_lcd_t::height
lcduint_t height
Definition: lcd_common.h:97
ssd1306_interface.h
ssd1306_lcd_t::next_page
void(* next_page)(void)
Definition: lcd_common.h:122
LCD_TYPE_CUSTOM
Definition: lcd_common.h:61
ssd1306_lcd_t::width
lcduint_t width
Definition: lcd_common.h:94
ssd1306_lcd_t::type
lcd_type_t type
Definition: lcd_common.h:91
oled_template.h
ssd1306_lcd_t::set_mode
void(* set_mode)(lcd_mode_t mode)
Sets library display mode for direct draw functions.
Definition: lcd_common.h:157