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15ce46d971
Make a start on generic peripheral and bus drivers to provide
meta-functionality regardless of platform.
On the one hand this simply provides...
- bitbang i2c on top of esp-idf gpio apis
- ssd1306 oled chip driver as found on Heltec WB32
- modifications to the minimal example test for esp32 to use that
... on the other hand, those capabilities are provided by creating:
- an abstract i2c class object
- an abstract gpio class object
- i2c class implementation using the abstract gpio for bitbang
- an abstract display class object
- an abstract display state (brightness, animated change,
on/off/init tracking, autodim after inactive, auto-off /
blanking after inactive)
... with the intention, eg, you only have to add a platform
implementation for the gpio to be able to use the i2c-based
display drivers and state handling, and i2c bitbang, without
any other modifications.
66 lines
2 KiB
C
66 lines
2 KiB
C
/*
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* Private register map for SSD1306
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*
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* Copyright (C) 2019 - 2020 Andy Green <andy@warmcat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#if !defined(__LWS_SSD1306_H__)
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#define __LWS_SSD1306_H__
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enum {
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SSD1306_SETLOWCOLUMN = 0x00,
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SSD1306_SETHIGHCOLUMN = 0x10,
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SSD1306_MEMORYMODE = 0x20,
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SSD1306_COLUMNADDR = 0x21,
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SSD1306_PAGEADDR = 0x22,
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SSD1306_DEACTIVATE_SCROLL = 0x2e,
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SSD1306_SETSTARTLINE = 0x40,
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SSD1306_SETCONTRAST = 0x81,
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SSD1306_CHARGEPUMP = 0x8d,
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SSD1306_SEGREMAP = 0xa0,
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SSD1306_SETSEGMENTREMAP = 0xa1,
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SSD1306_DISPLAYALLON_RESUME = 0xa4,
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SSD1306_DISPLAYALLON = 0xa5,
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SSD1306_NORMALDISPLAY = 0xa6,
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SSD1306_INVERTDISPLAY = 0xa7,
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SSD1306_SETMULTIPLEX = 0xa8,
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SSD1306_DISPLAYOFF = 0xae,
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SSD1306_DISPLAYON = 0xaf,
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SSD1306_COMSCANINC = 0xc0,
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SSD1306_COMSCANDEC = 0xc8,
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SSD1306_SETDISPLAYOFFSET = 0xd3,
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SSD1306_SETDISPLAYCLOCKDIV = 0xd5,
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SSD1306_SETPRECHARGE = 0xd9,
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SSD1306_SETCOMPINS = 0xda,
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SSD1306_SETVCOMDESELECT = 0xdb,
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SSD1306_NOP = 0xe3,
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};
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#endif
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