[364] | 1 | /*********************************************************************
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| 2 | This is a library for our Monochrome OLEDs based on SSD1306 drivers
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| 3 |
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| 4 | Pick one up today in the adafruit shop!
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| 5 | ------> http://www.adafruit.com/category/63_98
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| 6 |
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| 7 | These displays use SPI to communicate, 4 or 5 pins are required to
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| 8 | interface
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| 9 |
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| 10 | Adafruit invests time and resources providing this open source code,
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| 11 | please support Adafruit and open-source hardware by purchasing
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| 12 | products from Adafruit!
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| 13 |
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| 14 | Written by Limor Fried/Ladyada for Adafruit Industries.
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| 15 | BSD license, check license.txt for more information
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| 16 | All text above, and the splash screen below must be included in any redistribution
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| 17 | *********************************************************************/
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| 18 |
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| 19 | #include <string.h>
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| 20 | #include <kernel.h>
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| 21 | #include <t_syslog.h>
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| 22 | #include <t_stdlib.h>
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| 23 | #include <target_syssvc.h>
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| 24 | #include <time.h>
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| 25 | #include "syssvc/serial.h"
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| 26 | #include "syssvc/syslog.h"
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| 27 | #include "adafruit_ssd1306.h"
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| 28 |
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| 29 | #define HIGH 1
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| 30 | #define LOW 0
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| 31 |
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| 32 | // the memory buffer for the LCD
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| 33 |
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| 34 | static uint8_t buffer[SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8] = {
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| 35 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 36 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 37 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 38 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
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| 39 | 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 40 | 0x00, 0x80, 0x80, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 41 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 42 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 43 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 44 | 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xF8, 0xE0, 0x00, 0x00, 0x00, 0x00,
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| 45 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80,
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| 46 | 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0xFF,
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| 47 | #if (SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH > 96*16)
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| 48 | 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00,
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| 49 | 0x80, 0xFF, 0xFF, 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x80, 0x80,
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| 50 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x8C, 0x8E, 0x84, 0x00, 0x00, 0x80, 0xF8,
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| 51 | 0xF8, 0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 52 | 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xC0, 0x80,
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| 53 | 0x00, 0xE0, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
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| 54 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFF, 0xC7, 0x01, 0x01,
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| 55 | 0x01, 0x01, 0x83, 0xFF, 0xFF, 0x00, 0x00, 0x7C, 0xFE, 0xC7, 0x01, 0x01, 0x01, 0x01, 0x83, 0xFF,
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| 56 | 0xFF, 0xFF, 0x00, 0x38, 0xFE, 0xC7, 0x83, 0x01, 0x01, 0x01, 0x83, 0xC7, 0xFF, 0xFF, 0x00, 0x00,
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| 57 | 0x01, 0xFF, 0xFF, 0x01, 0x01, 0x00, 0xFF, 0xFF, 0x07, 0x01, 0x01, 0x01, 0x00, 0x00, 0x7F, 0xFF,
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| 58 | 0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x01, 0xFF,
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| 59 | 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 60 | 0x03, 0x0F, 0x3F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE7, 0xC7, 0xC7, 0x8F,
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| 61 | 0x8F, 0x9F, 0xBF, 0xFF, 0xFF, 0xC3, 0xC0, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xFC, 0xFC,
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| 62 | 0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xF8, 0xF0, 0xF0, 0xE0, 0xC0, 0x00, 0x01, 0x03, 0x03, 0x03,
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| 63 | 0x03, 0x03, 0x01, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01,
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| 64 | 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01, 0x03, 0x03, 0x00, 0x00,
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| 65 | 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
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| 66 | 0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x01, 0x00, 0x00, 0x00, 0x03,
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| 67 | 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 68 | #if (SSD1306_LCDHEIGHT == 64)
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| 69 | 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x1F, 0x0F,
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| 70 | 0x87, 0xC7, 0xF7, 0xFF, 0xFF, 0x1F, 0x1F, 0x3D, 0xFC, 0xF8, 0xF8, 0xF8, 0xF8, 0x7C, 0x7D, 0xFF,
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| 71 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0x0F, 0x07, 0x00, 0x30, 0x30, 0x00, 0x00,
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| 72 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 73 | 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 74 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC0, 0x00,
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| 75 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00,
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| 76 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 77 | 0x00, 0xC0, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x3F, 0x1F,
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| 78 | 0x0F, 0x07, 0x1F, 0x7F, 0xFF, 0xFF, 0xF8, 0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xE0,
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| 79 | 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00,
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| 80 | 0x00, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x0E, 0xFC, 0xF8, 0x00, 0x00, 0xF0, 0xF8, 0x1C, 0x0E,
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| 81 | 0x06, 0x06, 0x06, 0x0C, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xFC,
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| 82 | 0xFE, 0xFC, 0x00, 0x18, 0x3C, 0x7E, 0x66, 0xE6, 0xCE, 0x84, 0x00, 0x00, 0x06, 0xFF, 0xFF, 0x06,
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| 83 | 0x06, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x06, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0xC0, 0xF8,
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| 84 | 0xFC, 0x4E, 0x46, 0x46, 0x46, 0x4E, 0x7C, 0x78, 0x40, 0x18, 0x3C, 0x76, 0xE6, 0xCE, 0xCC, 0x80,
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| 85 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 86 | 0x00, 0x00, 0x00, 0x00, 0x01, 0x07, 0x0F, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x03,
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| 87 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
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| 88 | 0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x07, 0x0E, 0x0C,
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| 89 | 0x18, 0x18, 0x0C, 0x06, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x01, 0x0F, 0x0E, 0x0C, 0x18, 0x0C, 0x0F,
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| 90 | 0x07, 0x01, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00,
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| 91 | 0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x07,
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| 92 | 0x07, 0x0C, 0x0C, 0x18, 0x1C, 0x0C, 0x06, 0x06, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07,
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| 93 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 94 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 95 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 96 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 97 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 98 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 99 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 100 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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| 101 | #endif
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| 102 | #endif
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| 103 | };
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| 104 |
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| 105 | void lcd_fastSPIwrite(LCD_Handler_t *lcd, uint8_t d);
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| 106 | #define lcd_swap(a, b) { int16_t t = a; a = b; b = t; }
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| 107 |
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| 108 | // the most basic function, set a single pixel
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| 109 | void lcd_drawPixel(LCD_Handler_t *lcd, int16_t x, int16_t y, uint16_t color) {
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| 110 | if ((x < 0) || (x >= lcd->_width) || (y < 0) || (y >= lcd->_height))
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| 111 | return;
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| 112 |
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| 113 | // check rotation, move pixel around if necessary
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| 114 | switch (lcd->rotation) {
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| 115 | case 1:
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| 116 | lcd_swap(x, y);
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| 117 | x = lcd->_width - x - 1;
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| 118 | break;
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| 119 | case 2:
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| 120 | x = lcd->_width - x - 1;
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| 121 | y = lcd->_height - y - 1;
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| 122 | break;
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| 123 | case 3:
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| 124 | lcd_swap(x, y);
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| 125 | y = lcd->_height - y - 1;
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| 126 | break;
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| 127 | }
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| 128 |
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| 129 | // x is which column
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| 130 | switch (color)
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| 131 | {
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| 132 | case WHITE: buffer[x + (y / 8)*SSD1306_LCDWIDTH] |= (1 << (y & 7)); break;
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| 133 | case BLACK: buffer[x + (y / 8)*SSD1306_LCDWIDTH] &= ~(1 << (y & 7)); break;
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| 134 | case INVERSE: buffer[x + (y / 8)*SSD1306_LCDWIDTH] ^= (1 << (y & 7)); break;
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| 135 | }
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| 136 | }
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| 137 |
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| 138 | void lcd_init1(LCD_Handler_t *lcd, int8_t SID, int8_t SCLK, int8_t DC, int8_t RST, int8_t CS)
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| 139 | {
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| 140 | lcd->_width = SSD1306_LCDWIDTH;
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| 141 | lcd->_height = SSD1306_LCDHEIGHT;
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| 142 | gpio_init(&lcd->cs, CS);
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| 143 | gpio_init(&lcd->rst, RST);
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| 144 | gpio_init(&lcd->dc, DC);
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| 145 | gpio_init(&lcd->sclk, SCLK);
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| 146 | gpio_init(&lcd->sid, SID);
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| 147 | lcd->hwSPI = false;
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| 148 | }
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| 149 |
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| 150 | // constructor for hardware SPI - we indicate DataCommand, ChipSelect, Reset
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| 151 | void lcd_init2(LCD_Handler_t *lcd, int8_t DC, int8_t RST, int8_t CS)
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| 152 | {
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| 153 | lcd->_width = SSD1306_LCDWIDTH;
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| 154 | lcd->_height = SSD1306_LCDHEIGHT;
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| 155 | gpio_init(&lcd->dc, DC);
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| 156 | gpio_init(&lcd->rst, RST);
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| 157 | gpio_init(&lcd->cs, CS);
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| 158 | lcd->hwSPI = true;
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| 159 | }
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| 160 |
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| 161 | // initializer for I2C - we only indicate the reset pin!
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| 162 | void lcd_init3(LCD_Handler_t *lcd, int8_t reset)
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| 163 | {
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| 164 | lcd->_width = SSD1306_LCDWIDTH;
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| 165 | lcd->_height = SSD1306_LCDHEIGHT;
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| 166 | gpio_init(&lcd->sclk, NC);
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| 167 | gpio_init(&lcd->dc, NC);
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| 168 | gpio_init(&lcd->cs, NC);
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| 169 | gpio_init(&lcd->sid, NC);
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| 170 | gpio_init(&lcd->rst, reset);
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| 171 | }
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| 172 |
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| 173 | void lcd_begin(LCD_Handler_t *lcd, uint8_t vccstate, uint8_t i2caddr, bool_t reset) {
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| 174 | lcd->_vccstate = vccstate;
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| 175 | lcd->_i2caddr = i2caddr;
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| 176 |
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| 177 | // set pin directions
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| 178 | if (lcd->sid.pin != NC) {
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| 179 | gpio_dir(&lcd->dc, PIN_OUTPUT);
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| 180 | gpio_dir(&lcd->cs, PIN_OUTPUT);
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| 181 | if (!lcd->hwSPI) {
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| 182 | // set pins for software-SPI
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| 183 | gpio_dir(&lcd->sid, PIN_OUTPUT);
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| 184 | gpio_dir(&lcd->sclk, PIN_OUTPUT);
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| 185 | }
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| 186 | if (lcd->hwSPI) {
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| 187 | spi_format(&lcd->spi, 8, 0, 0);
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| 188 | spi_master_write(&lcd->spi, 8000000);
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| 189 | }
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| 190 | }
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| 191 | else
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| 192 | {
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| 193 | // I2C Init
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| 194 | //i2c_begin(&lcd->i2c);
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| 195 | #ifdef __SAM3X8E__
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| 196 | // Force 400 KHz I2C, rawr! (Uses pins 20, 21 for SDA, SCL)
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| 197 | TWI1->TWI_CWGR = 0;
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| 198 | TWI1->TWI_CWGR = ((VARIANT_MCK / (2 * 400000)) - 4) * 0x101;
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| 199 | #endif
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| 200 | }
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| 201 | if ((reset) && (lcd->rst.pin != NC)) {
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| 202 | // Setup reset pin direction (used by both SPI and I2C)
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| 203 | gpio_dir(&lcd->rst, PIN_OUTPUT);
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| 204 | gpio_write(&lcd->rst, HIGH);
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| 205 | // VDD (3.3V) goes high at start, lets just chill for a ms
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| 206 | dly_tsk(1 * 1000);
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| 207 | // bring reset low
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| 208 | gpio_write(&lcd->rst, LOW);
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| 209 | // wait 10ms
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| 210 | dly_tsk(10 * 1000);
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| 211 | // bring out of reset
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| 212 | gpio_write(&lcd->rst, HIGH);
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| 213 | // turn on VCC (9V?)
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| 214 | }
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| 215 |
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| 216 | // Init sequence
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| 217 | lcd_command(lcd, SSD1306_DISPLAYOFF); // 0xAE
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| 218 | lcd_command(lcd, SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
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| 219 | lcd_command(lcd, 0x80); // the suggested ratio 0x80
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| 220 |
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| 221 | lcd_command(lcd, SSD1306_SETMULTIPLEX); // 0xA8
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| 222 | lcd_command(lcd, SSD1306_LCDHEIGHT - 1);
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| 223 |
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| 224 | lcd_command(lcd, SSD1306_SETDISPLAYOFFSET); // 0xD3
|
---|
| 225 | lcd_command(lcd, 0x0); // no offset
|
---|
| 226 | lcd_command(lcd, SSD1306_SETSTARTLINE | 0x0); // line #0
|
---|
| 227 | lcd_command(lcd, SSD1306_CHARGEPUMP); // 0x8D
|
---|
| 228 | if (vccstate == SSD1306_EXTERNALVCC)
|
---|
| 229 | {
|
---|
| 230 | lcd_command(lcd, 0x10);
|
---|
| 231 | }
|
---|
| 232 | else
|
---|
| 233 | {
|
---|
| 234 | lcd_command(lcd, 0x14);
|
---|
| 235 | }
|
---|
| 236 | lcd_command(lcd, SSD1306_MEMORYMODE); // 0x20
|
---|
| 237 | lcd_command(lcd, 0x00); // 0x0 act like ks0108
|
---|
| 238 | lcd_command(lcd, SSD1306_SEGREMAP | 0x1);
|
---|
| 239 | lcd_command(lcd, SSD1306_COMSCANDEC);
|
---|
| 240 |
|
---|
| 241 | #if defined SSD1306_128_32
|
---|
| 242 | lcd_command(lcd, SSD1306_SETCOMPINS); // 0xDA
|
---|
| 243 | lcd_command(lcd, 0x02);
|
---|
| 244 | lcd_command(lcd, SSD1306_SETCONTRAST); // 0x81
|
---|
| 245 | lcd_command(lcd, 0x8F);
|
---|
| 246 |
|
---|
| 247 | #elif defined SSD1306_128_64
|
---|
| 248 | lcd_command(lcd, SSD1306_SETCOMPINS); // 0xDA
|
---|
| 249 | lcd_command(lcd, 0x12);
|
---|
| 250 | lcd_command(lcd, SSD1306_SETCONTRAST); // 0x81
|
---|
| 251 | if (vccstate == SSD1306_EXTERNALVCC)
|
---|
| 252 | {
|
---|
| 253 | lcd_command(lcd, 0x9F);
|
---|
| 254 | }
|
---|
| 255 | else
|
---|
| 256 | {
|
---|
| 257 | lcd_command(lcd, 0xCF);
|
---|
| 258 | }
|
---|
| 259 |
|
---|
| 260 | #elif defined SSD1306_96_16
|
---|
| 261 | lcd_command(lcd, SSD1306_SETCOMPINS); // 0xDA
|
---|
| 262 | lcd_command(lcd, 0x2); //ada x12
|
---|
| 263 | lcd_command(lcd, SSD1306_SETCONTRAST); // 0x81
|
---|
| 264 | if (vccstate == SSD1306_EXTERNALVCC)
|
---|
| 265 | {
|
---|
| 266 | lcd_command(lcd, 0x10);
|
---|
| 267 | }
|
---|
| 268 | else
|
---|
| 269 | {
|
---|
| 270 | lcd_command(lcd, 0xAF);
|
---|
| 271 | }
|
---|
| 272 |
|
---|
| 273 | #endif
|
---|
| 274 |
|
---|
| 275 | lcd_command(lcd, SSD1306_SETPRECHARGE); // 0xd9
|
---|
| 276 | if (vccstate == SSD1306_EXTERNALVCC)
|
---|
| 277 | {
|
---|
| 278 | lcd_command(lcd, 0x22);
|
---|
| 279 | }
|
---|
| 280 | else
|
---|
| 281 | {
|
---|
| 282 | lcd_command(lcd, 0xF1);
|
---|
| 283 | }
|
---|
| 284 | lcd_command(lcd, SSD1306_SETVCOMDETECT); // 0xDB
|
---|
| 285 | lcd_command(lcd, 0x40);
|
---|
| 286 | lcd_command(lcd, SSD1306_DISPLAYALLON_RESUME); // 0xA4
|
---|
| 287 | lcd_command(lcd, SSD1306_NORMALDISPLAY); // 0xA6
|
---|
| 288 |
|
---|
| 289 | lcd_command(lcd, SSD1306_DEACTIVATE_SCROLL);
|
---|
| 290 |
|
---|
| 291 | lcd_command(lcd, SSD1306_DISPLAYON);//--turn on oled panel
|
---|
| 292 | }
|
---|
| 293 |
|
---|
| 294 |
|
---|
| 295 | void lcd_invertDisplay(LCD_Handler_t *lcd, uint8_t i) {
|
---|
| 296 | if (i) {
|
---|
| 297 | lcd_command(lcd, SSD1306_INVERTDISPLAY);
|
---|
| 298 | }
|
---|
| 299 | else {
|
---|
| 300 | lcd_command(lcd, SSD1306_NORMALDISPLAY);
|
---|
| 301 | }
|
---|
| 302 | }
|
---|
| 303 |
|
---|
| 304 | void lcd_command(LCD_Handler_t *lcd, uint8_t c) {
|
---|
| 305 | if (lcd->sid.pin != NC)
|
---|
| 306 | {
|
---|
| 307 | // SPI
|
---|
| 308 | gpio_write(&lcd->cs, HIGH);
|
---|
| 309 | gpio_write(&lcd->dc, LOW);
|
---|
| 310 | gpio_write(&lcd->cs, LOW);
|
---|
| 311 | lcd_fastSPIwrite(lcd, c);
|
---|
| 312 | gpio_write(&lcd->cs, HIGH);
|
---|
| 313 | }
|
---|
| 314 | else
|
---|
| 315 | {
|
---|
| 316 | // I2C
|
---|
| 317 | uint8_t data[2] = { 0x00/* Co = 0, D/C = 0*/, c };
|
---|
| 318 | i2c_write(&lcd->i2c, lcd->_i2caddr, data, sizeof(data), 1);
|
---|
| 319 | }
|
---|
| 320 | }
|
---|
| 321 |
|
---|
| 322 | // startscrollright
|
---|
| 323 | // Activate a right handed scroll for rows start through stop
|
---|
| 324 | // Hint, the display is 16 rows tall. To scroll the whole display, run:
|
---|
| 325 | // display.scrollright(0x00, 0x0F)
|
---|
| 326 | void lcd_startscrollright(LCD_Handler_t *lcd, uint8_t start, uint8_t stop) {
|
---|
| 327 | lcd_command(lcd, SSD1306_RIGHT_HORIZONTAL_SCROLL);
|
---|
| 328 | lcd_command(lcd, 0X00);
|
---|
| 329 | lcd_command(lcd, start);
|
---|
| 330 | lcd_command(lcd, 0X00);
|
---|
| 331 | lcd_command(lcd, stop);
|
---|
| 332 | lcd_command(lcd, 0X00);
|
---|
| 333 | lcd_command(lcd, 0XFF);
|
---|
| 334 | lcd_command(lcd, SSD1306_ACTIVATE_SCROLL);
|
---|
| 335 | }
|
---|
| 336 |
|
---|
| 337 | // startscrollleft
|
---|
| 338 | // Activate a right handed scroll for rows start through stop
|
---|
| 339 | // Hint, the display is 16 rows tall. To scroll the whole display, run:
|
---|
| 340 | // display.scrollright(0x00, 0x0F)
|
---|
| 341 | void lcd_startscrollleft(LCD_Handler_t *lcd, uint8_t start, uint8_t stop) {
|
---|
| 342 | lcd_command(lcd, SSD1306_LEFT_HORIZONTAL_SCROLL);
|
---|
| 343 | lcd_command(lcd, 0X00);
|
---|
| 344 | lcd_command(lcd, start);
|
---|
| 345 | lcd_command(lcd, 0X00);
|
---|
| 346 | lcd_command(lcd, stop);
|
---|
| 347 | lcd_command(lcd, 0X00);
|
---|
| 348 | lcd_command(lcd, 0XFF);
|
---|
| 349 | lcd_command(lcd, SSD1306_ACTIVATE_SCROLL);
|
---|
| 350 | }
|
---|
| 351 |
|
---|
| 352 | // startscrolldiagright
|
---|
| 353 | // Activate a diagonal scroll for rows start through stop
|
---|
| 354 | // Hint, the display is 16 rows tall. To scroll the whole display, run:
|
---|
| 355 | // display.scrollright(0x00, 0x0F)
|
---|
| 356 | void lcd_startscrolldiagright(LCD_Handler_t *lcd, uint8_t start, uint8_t stop) {
|
---|
| 357 | lcd_command(lcd, SSD1306_SET_VERTICAL_SCROLL_AREA);
|
---|
| 358 | lcd_command(lcd, 0X00);
|
---|
| 359 | lcd_command(lcd, SSD1306_LCDHEIGHT);
|
---|
| 360 | lcd_command(lcd, SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL);
|
---|
| 361 | lcd_command(lcd, 0X00);
|
---|
| 362 | lcd_command(lcd, start);
|
---|
| 363 | lcd_command(lcd, 0X00);
|
---|
| 364 | lcd_command(lcd, stop);
|
---|
| 365 | lcd_command(lcd, 0X01);
|
---|
| 366 | lcd_command(lcd, SSD1306_ACTIVATE_SCROLL);
|
---|
| 367 | }
|
---|
| 368 |
|
---|
| 369 | // startscrolldiagleft
|
---|
| 370 | // Activate a diagonal scroll for rows start through stop
|
---|
| 371 | // Hint, the display is 16 rows tall. To scroll the whole display, run:
|
---|
| 372 | // display.scrollright(0x00, 0x0F)
|
---|
| 373 | void lcd_startscrolldiagleft(LCD_Handler_t *lcd, uint8_t start, uint8_t stop) {
|
---|
| 374 | lcd_command(lcd, SSD1306_SET_VERTICAL_SCROLL_AREA);
|
---|
| 375 | lcd_command(lcd, 0X00);
|
---|
| 376 | lcd_command(lcd, SSD1306_LCDHEIGHT);
|
---|
| 377 | lcd_command(lcd, SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL);
|
---|
| 378 | lcd_command(lcd, 0X00);
|
---|
| 379 | lcd_command(lcd, start);
|
---|
| 380 | lcd_command(lcd, 0X00);
|
---|
| 381 | lcd_command(lcd, stop);
|
---|
| 382 | lcd_command(lcd, 0X01);
|
---|
| 383 | lcd_command(lcd, SSD1306_ACTIVATE_SCROLL);
|
---|
| 384 | }
|
---|
| 385 |
|
---|
| 386 | void lcd_stopscroll(LCD_Handler_t *lcd) {
|
---|
| 387 | lcd_command(lcd, SSD1306_DEACTIVATE_SCROLL);
|
---|
| 388 | }
|
---|
| 389 |
|
---|
| 390 | // Dim the display
|
---|
| 391 | // dim = true: display is dimmed
|
---|
| 392 | // dim = false: display is normal
|
---|
| 393 | void lcd_dim(LCD_Handler_t *lcd, bool_t dim) {
|
---|
| 394 | uint8_t contrast;
|
---|
| 395 |
|
---|
| 396 | if (dim) {
|
---|
| 397 | contrast = 0; // Dimmed display
|
---|
| 398 | }
|
---|
| 399 | else {
|
---|
| 400 | if (lcd->_vccstate == SSD1306_EXTERNALVCC) {
|
---|
| 401 | contrast = 0x9F;
|
---|
| 402 | }
|
---|
| 403 | else {
|
---|
| 404 | contrast = 0xCF;
|
---|
| 405 | }
|
---|
| 406 | }
|
---|
| 407 | // the range of contrast to too small to be really useful
|
---|
| 408 | // it is useful to dim the display
|
---|
| 409 | lcd_command(lcd, SSD1306_SETCONTRAST);
|
---|
| 410 | lcd_command(lcd, contrast);
|
---|
| 411 | }
|
---|
| 412 |
|
---|
| 413 | void lcd_display(LCD_Handler_t *lcd) {
|
---|
| 414 | lcd_command(lcd, SSD1306_COLUMNADDR);
|
---|
| 415 | lcd_command(lcd, 0); // Column start address (0 = reset)
|
---|
| 416 | lcd_command(lcd, SSD1306_LCDWIDTH - 1); // Column end address (127 = reset)
|
---|
| 417 |
|
---|
| 418 | lcd_command(lcd, SSD1306_PAGEADDR);
|
---|
| 419 | lcd_command(lcd, 0); // Page start address (0 = reset)
|
---|
| 420 | #if SSD1306_LCDHEIGHT == 64
|
---|
| 421 | lcd_command(lcd, 7); // Page end address
|
---|
| 422 | #endif
|
---|
| 423 | #if SSD1306_LCDHEIGHT == 32
|
---|
| 424 | lcd_command(lcd, 3); // Page end address
|
---|
| 425 | #endif
|
---|
| 426 | #if SSD1306_LCDHEIGHT == 16
|
---|
| 427 | lcd_command(lcd, 1); // Page end address
|
---|
| 428 | #endif
|
---|
| 429 |
|
---|
| 430 | if (lcd->sid.pin != NC)
|
---|
| 431 | {
|
---|
| 432 | // SPI
|
---|
| 433 | gpio_write(&lcd->cs, HIGH);
|
---|
| 434 | gpio_write(&lcd->dc, HIGH);
|
---|
| 435 | gpio_write(&lcd->cs, LOW);
|
---|
| 436 |
|
---|
| 437 | for (uint16_t i = 0; i < (SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT / 8); i++) {
|
---|
| 438 | lcd_fastSPIwrite(lcd, buffer[i]);
|
---|
| 439 | }
|
---|
| 440 | gpio_write(&lcd->cs, HIGH);
|
---|
| 441 | }
|
---|
| 442 | else
|
---|
| 443 | {
|
---|
| 444 | // save I2C bitrate
|
---|
| 445 | #ifdef TWBR
|
---|
| 446 | uint8_t twbrbackup = TWBR;
|
---|
| 447 | TWBR = 12; // upgrade to 400KHz!
|
---|
| 448 | #endif
|
---|
| 449 | //Serial.println(TWBR, DEC);
|
---|
| 450 | //Serial.println(TWSR & 0x3, DEC);
|
---|
| 451 |
|
---|
| 452 | // I2C
|
---|
| 453 | uint8_t data[17] = { 0x40, };
|
---|
| 454 | for (uint16_t i = 0; i < (SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT / 8); i+=16) {
|
---|
| 455 | // send a bunch of data in one xmission
|
---|
| 456 | memcpy(&data[1], &buffer[i], 16);
|
---|
| 457 | i2c_write(&lcd->i2c, lcd->_i2caddr, data, sizeof(data), 1);
|
---|
| 458 | }
|
---|
| 459 | #ifdef TWBR
|
---|
| 460 | TWBR = twbrbackup;
|
---|
| 461 | #endif
|
---|
| 462 | }
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | // clear everything
|
---|
| 466 | void lcd_clearDisplay(LCD_Handler_t *lcd) {
|
---|
| 467 | memset(buffer, 0, (SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT / 8));
|
---|
| 468 | }
|
---|
| 469 |
|
---|
| 470 | void lcd_fastSPIwrite(LCD_Handler_t *lcd, uint8_t d)
|
---|
| 471 | {
|
---|
| 472 | if (lcd->hwSPI) {
|
---|
| 473 | spi_master_write(&lcd->spi, d);
|
---|
| 474 | }
|
---|
| 475 | else {
|
---|
| 476 | for (uint8_t bit = 0x80; bit; bit >>= 1) {
|
---|
| 477 | gpio_write(&lcd->sclk, LOW);
|
---|
| 478 | if (d & bit) gpio_write(&lcd->sid, HIGH);
|
---|
| 479 | else gpio_write(&lcd->sid, LOW);
|
---|
| 480 | gpio_write(&lcd->sclk, HIGH);
|
---|
| 481 | }
|
---|
| 482 | }
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | void lcd_drawFastHLine(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t w, uint16_t color) {
|
---|
| 486 | bool_t bSwap = false;
|
---|
| 487 | switch (lcd->rotation) {
|
---|
| 488 | case 0:
|
---|
| 489 | // 0 degree rotation, do nothing
|
---|
| 490 | break;
|
---|
| 491 | case 1:
|
---|
| 492 | // 90 degree rotation, swap x & y for rotation, then invert x
|
---|
| 493 | bSwap = true;
|
---|
| 494 | lcd_swap(x, y);
|
---|
| 495 | x = lcd->_width - x - 1;
|
---|
| 496 | break;
|
---|
| 497 | case 2:
|
---|
| 498 | // 180 degree rotation, invert x and y - then shift y around for height.
|
---|
| 499 | x = lcd->_width - x - 1;
|
---|
| 500 | y = lcd->_height - y - 1;
|
---|
| 501 | x -= (w - 1);
|
---|
| 502 | break;
|
---|
| 503 | case 3:
|
---|
| 504 | // 270 degree rotation, swap x & y for rotation, then invert y and adjust y for w (not to become h)
|
---|
| 505 | bSwap = true;
|
---|
| 506 | lcd_swap(x, y);
|
---|
| 507 | y = lcd->_height - y - 1;
|
---|
| 508 | y -= (w - 1);
|
---|
| 509 | break;
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 | if (bSwap) {
|
---|
| 513 | lcd_drawFastVLineInternal(lcd, x, y, w, color);
|
---|
| 514 | }
|
---|
| 515 | else {
|
---|
| 516 | lcd_drawFastHLineInternal(lcd, x, y, w, color);
|
---|
| 517 | }
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 | void lcd_drawFastHLineInternal(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t w, uint16_t color) {
|
---|
| 521 | // Do bounds/limit checks
|
---|
| 522 | if (y < 0 || y >= lcd->_height) { return; }
|
---|
| 523 |
|
---|
| 524 | // make sure we don't try to draw below 0
|
---|
| 525 | if (x < 0) {
|
---|
| 526 | w += x;
|
---|
| 527 | x = 0;
|
---|
| 528 | }
|
---|
| 529 |
|
---|
| 530 | // make sure we don't go off the edge of the display
|
---|
| 531 | if ((x + w) > lcd->_width) {
|
---|
| 532 | w = (lcd->_width - x);
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 | // if our width is now negative, punt
|
---|
| 536 | if (w <= 0) { return; }
|
---|
| 537 |
|
---|
| 538 | // set up the pointer for movement through the buffer
|
---|
| 539 | register uint8_t *pBuf = buffer;
|
---|
| 540 | // adjust the buffer pointer for the current row
|
---|
| 541 | pBuf += ((y / 8) * SSD1306_LCDWIDTH);
|
---|
| 542 | // and offset x columns in
|
---|
| 543 | pBuf += x;
|
---|
| 544 |
|
---|
| 545 | register uint8_t mask = 1 << (y & 7);
|
---|
| 546 |
|
---|
| 547 | switch (color)
|
---|
| 548 | {
|
---|
| 549 | case WHITE: while (w--) { *pBuf++ |= mask; }; break;
|
---|
| 550 | case BLACK: mask = ~mask; while (w--) { *pBuf++ &= mask; }; break;
|
---|
| 551 | case INVERSE: while (w--) { *pBuf++ ^= mask; }; break;
|
---|
| 552 | }
|
---|
| 553 | }
|
---|
| 554 |
|
---|
| 555 | void lcd_drawFastVLine(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t h, uint16_t color) {
|
---|
| 556 | bool_t bSwap = false;
|
---|
| 557 | switch (lcd->rotation) {
|
---|
| 558 | case 0:
|
---|
| 559 | break;
|
---|
| 560 | case 1:
|
---|
| 561 | // 90 degree rotation, swap x & y for rotation, then invert x and adjust x for h (now to become w)
|
---|
| 562 | bSwap = true;
|
---|
| 563 | lcd_swap(x, y);
|
---|
| 564 | x = lcd->_width - x - 1;
|
---|
| 565 | x -= (h - 1);
|
---|
| 566 | break;
|
---|
| 567 | case 2:
|
---|
| 568 | // 180 degree rotation, invert x and y - then shift y around for height.
|
---|
| 569 | x = lcd->_width - x - 1;
|
---|
| 570 | y = lcd->_height - y - 1;
|
---|
| 571 | y -= (h - 1);
|
---|
| 572 | break;
|
---|
| 573 | case 3:
|
---|
| 574 | // 270 degree rotation, swap x & y for rotation, then invert y
|
---|
| 575 | bSwap = true;
|
---|
| 576 | lcd_swap(x, y);
|
---|
| 577 | y = lcd->_height - y - 1;
|
---|
| 578 | break;
|
---|
| 579 | }
|
---|
| 580 |
|
---|
| 581 | if (bSwap) {
|
---|
| 582 | lcd_drawFastHLineInternal(lcd, x, y, h, color);
|
---|
| 583 | }
|
---|
| 584 | else {
|
---|
| 585 | lcd_drawFastVLineInternal(lcd, x, y, h, color);
|
---|
| 586 | }
|
---|
| 587 | }
|
---|
| 588 |
|
---|
| 589 |
|
---|
| 590 | void lcd_drawFastVLineInternal(LCD_Handler_t *lcd, int16_t x, int16_t __y, int16_t __h, uint16_t color) {
|
---|
| 591 |
|
---|
| 592 | // do nothing if we're off the left or right side of the screen
|
---|
| 593 | if (x < 0 || x >= lcd->_width) { return; }
|
---|
| 594 |
|
---|
| 595 | // make sure we don't try to draw below 0
|
---|
| 596 | if (__y < 0) {
|
---|
| 597 | // __y is negative, this will subtract enough from __h to account for __y being 0
|
---|
| 598 | __h += __y;
|
---|
| 599 | __y = 0;
|
---|
| 600 |
|
---|
| 601 | }
|
---|
| 602 |
|
---|
| 603 | // make sure we don't go past the height of the display
|
---|
| 604 | if ((__y + __h) > lcd->_height) {
|
---|
| 605 | __h = (lcd->_height - __y);
|
---|
| 606 | }
|
---|
| 607 |
|
---|
| 608 | // if our height is now negative, punt
|
---|
| 609 | if (__h <= 0) {
|
---|
| 610 | return;
|
---|
| 611 | }
|
---|
| 612 |
|
---|
| 613 | // this display doesn't need ints for coordinates, use local byte registers for faster juggling
|
---|
| 614 | register uint8_t y = __y;
|
---|
| 615 | register uint8_t h = __h;
|
---|
| 616 |
|
---|
| 617 |
|
---|
| 618 | // set up the pointer for fast movement through the buffer
|
---|
| 619 | register uint8_t *pBuf = buffer;
|
---|
| 620 | // adjust the buffer pointer for the current row
|
---|
| 621 | pBuf += ((y / 8) * SSD1306_LCDWIDTH);
|
---|
| 622 | // and offset x columns in
|
---|
| 623 | pBuf += x;
|
---|
| 624 |
|
---|
| 625 | // do the first partial byte, if necessary - this requires some masking
|
---|
| 626 | register uint8_t mod = (y & 7);
|
---|
| 627 | if (mod) {
|
---|
| 628 | // mask off the high n bits we want to set
|
---|
| 629 | mod = 8 - mod;
|
---|
| 630 |
|
---|
| 631 | // note - lookup table results in a nearly 10% performance improvement in fill* functions
|
---|
| 632 | // register uint8_t mask = ~(0xFF >> (mod));
|
---|
| 633 | static uint8_t premask[8] = { 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE };
|
---|
| 634 | register uint8_t mask = premask[mod];
|
---|
| 635 |
|
---|
| 636 | // adjust the mask if we're not going to reach the end of this byte
|
---|
| 637 | if (h < mod) {
|
---|
| 638 | mask &= (0XFF >> (mod - h));
|
---|
| 639 | }
|
---|
| 640 |
|
---|
| 641 | switch (color)
|
---|
| 642 | {
|
---|
| 643 | case WHITE: *pBuf |= mask; break;
|
---|
| 644 | case BLACK: *pBuf &= ~mask; break;
|
---|
| 645 | case INVERSE: *pBuf ^= mask; break;
|
---|
| 646 | }
|
---|
| 647 |
|
---|
| 648 | // fast exit if we're done here!
|
---|
| 649 | if (h < mod) { return; }
|
---|
| 650 |
|
---|
| 651 | h -= mod;
|
---|
| 652 |
|
---|
| 653 | pBuf += SSD1306_LCDWIDTH;
|
---|
| 654 | }
|
---|
| 655 |
|
---|
| 656 | // write solid bytes while we can - effectively doing 8 rows at a time
|
---|
| 657 | if (h >= 8) {
|
---|
| 658 | if (color == INVERSE) { // separate copy of the code so we don't impact performance of the black/white write version with an extra comparison per loop
|
---|
| 659 | do {
|
---|
| 660 | *pBuf = ~(*pBuf);
|
---|
| 661 |
|
---|
| 662 | // adjust the buffer forward 8 rows worth of data
|
---|
| 663 | pBuf += SSD1306_LCDWIDTH;
|
---|
| 664 |
|
---|
| 665 | // adjust h & y (there's got to be a faster way for me to do this, but this should still help a fair bit for now)
|
---|
| 666 | h -= 8;
|
---|
| 667 | } while (h >= 8);
|
---|
| 668 | }
|
---|
| 669 | else {
|
---|
| 670 | // store a local value to work with
|
---|
| 671 | register uint8_t val = (color == WHITE) ? 255 : 0;
|
---|
| 672 |
|
---|
| 673 | do {
|
---|
| 674 | // write our value in
|
---|
| 675 | *pBuf = val;
|
---|
| 676 |
|
---|
| 677 | // adjust the buffer forward 8 rows worth of data
|
---|
| 678 | pBuf += SSD1306_LCDWIDTH;
|
---|
| 679 |
|
---|
| 680 | // adjust h & y (there's got to be a faster way for me to do this, but this should still help a fair bit for now)
|
---|
| 681 | h -= 8;
|
---|
| 682 | } while (h >= 8);
|
---|
| 683 | }
|
---|
| 684 | }
|
---|
| 685 |
|
---|
| 686 | // now do the final partial byte, if necessary
|
---|
| 687 | if (h) {
|
---|
| 688 | mod = h & 7;
|
---|
| 689 | // this time we want to mask the low bits of the byte, vs the high bits we did above
|
---|
| 690 | // register uint8_t mask = (1 << mod) - 1;
|
---|
| 691 | // note - lookup table results in a nearly 10% performance improvement in fill* functions
|
---|
| 692 | static uint8_t postmask[8] = { 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F };
|
---|
| 693 | register uint8_t mask = postmask[mod];
|
---|
| 694 | switch (color)
|
---|
| 695 | {
|
---|
| 696 | case WHITE: *pBuf |= mask; break;
|
---|
| 697 | case BLACK: *pBuf &= ~mask; break;
|
---|
| 698 | case INVERSE: *pBuf ^= mask; break;
|
---|
| 699 | }
|
---|
| 700 | }
|
---|
| 701 | }
|
---|