e1df598199
These are moved: * Display -> busdisplay.BusDisplay * FourWire -> fourwire.FourWire * EPaperDisplay -> epaperdisplay.EPaperDisplay * I2CDisplay -> i2cdisplaybus.I2CDisplayBus `paralleldisplay` is now `paralleldisplaybus` (and registered as `paralleldisplay` too). Bus related helpers are split out of display_core into bus_core. It is in still displayio since it is a dependency of both busdisplay and epaperdisplay. Fixes #7667
341 lines
10 KiB
C
341 lines
10 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
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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 deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* 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 FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "supervisor/board.h"
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#include "mpconfigboard.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/fourwire/FourWire.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-module/displayio/__init__.h"
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#include "supervisor/shared/board.h"
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#include "badger-shared.h"
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digitalio_digitalinout_obj_t enable_pin_obj;
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#define DELAY 0x80
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enum reg {
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PSR = 0x00,
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PWR = 0x01,
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POF = 0x02,
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PFS = 0x03,
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PON = 0x04,
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PMES = 0x05,
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BTST = 0x06,
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DSLP = 0x07,
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DTM1 = 0x10,
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DSP = 0x11,
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DRF = 0x12,
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DTM2 = 0x13,
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LUT_VCOM = 0x20,
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LUT_WW = 0x21,
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LUT_BW = 0x22,
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LUT_WB = 0x23,
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LUT_BB = 0x24,
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PLL = 0x30,
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TSC = 0x40,
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TSE = 0x41,
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TSR = 0x43,
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TSW = 0x42,
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CDI = 0x50,
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LPD = 0x51,
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TCON = 0x60,
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TRES = 0x61,
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REV = 0x70,
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FLG = 0x71,
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AMV = 0x80,
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VV = 0x81,
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VDCS = 0x82,
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PTL = 0x90,
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PTIN = 0x91,
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PTOU = 0x92,
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PGM = 0xa0,
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APG = 0xa1,
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ROTP = 0xa2,
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CCSET = 0xe0,
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PWS = 0xe3,
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TSSET = 0xe5
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};
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enum PSR_FLAGS {
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RES_96x230 = 0b00000000,
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RES_96x252 = 0b01000000,
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RES_128x296 = 0b10000000,
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RES_160x296 = 0b11000000,
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LUT_OTP = 0b00000000,
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LUT_REG = 0b00100000,
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FORMAT_BWR = 0b00000000,
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FORMAT_BW = 0b00010000,
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SCAN_DOWN = 0b00000000,
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SCAN_UP = 0b00001000,
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SHIFT_LEFT = 0b00000000,
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SHIFT_RIGHT = 0b00000100,
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BOOSTER_OFF = 0b00000000,
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BOOSTER_ON = 0b00000010,
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RESET_SOFT = 0b00000000,
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RESET_NONE = 0b00000001
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};
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enum PWR_FLAGS_1 {
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VDS_EXTERNAL = 0b00000000,
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VDS_INTERNAL = 0b00000010,
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VDG_EXTERNAL = 0b00000000,
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VDG_INTERNAL = 0b00000001
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};
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enum PWR_FLAGS_2 {
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VCOM_VD = 0b00000000,
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VCOM_VG = 0b00000100,
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VGHL_16V = 0b00000000,
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VGHL_15V = 0b00000001,
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VGHL_14V = 0b00000010,
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VGHL_13V = 0b00000011
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};
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enum BOOSTER_FLAGS {
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START_10MS = 0b00000000,
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START_20MS = 0b01000000,
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START_30MS = 0b10000000,
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START_40MS = 0b11000000,
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STRENGTH_1 = 0b00000000,
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STRENGTH_2 = 0b00001000,
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STRENGTH_3 = 0b00010000,
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STRENGTH_4 = 0b00011000,
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STRENGTH_5 = 0b00100000,
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STRENGTH_6 = 0b00101000,
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STRENGTH_7 = 0b00110000,
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STRENGTH_8 = 0b00111000,
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OFF_0_27US = 0b00000000,
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OFF_0_34US = 0b00000001,
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OFF_0_40US = 0b00000010,
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OFF_0_54US = 0b00000011,
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OFF_0_80US = 0b00000100,
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OFF_1_54US = 0b00000101,
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OFF_3_34US = 0b00000110,
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OFF_6_58US = 0b00000111
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};
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enum PFS_FLAGS {
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FRAMES_1 = 0b00000000,
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FRAMES_2 = 0b00010000,
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FRAMES_3 = 0b00100000,
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FRAMES_4 = 0b00110000
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};
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enum TSE_FLAGS {
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TEMP_INTERNAL = 0b00000000,
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TEMP_EXTERNAL = 0b10000000,
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OFFSET_0 = 0b00000000,
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OFFSET_1 = 0b00000001,
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OFFSET_2 = 0b00000010,
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OFFSET_3 = 0b00000011,
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OFFSET_4 = 0b00000100,
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OFFSET_5 = 0b00000101,
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OFFSET_6 = 0b00000110,
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OFFSET_7 = 0b00000111,
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OFFSET_MIN_8 = 0b00001000,
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OFFSET_MIN_7 = 0b00001001,
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OFFSET_MIN_6 = 0b00001010,
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OFFSET_MIN_5 = 0b00001011,
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OFFSET_MIN_4 = 0b00001100,
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OFFSET_MIN_3 = 0b00001101,
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OFFSET_MIN_2 = 0b00001110,
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OFFSET_MIN_1 = 0b00001111
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};
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enum PLL_FLAGS {
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// other frequency options exist but there doesn't seem to be much
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// point in including them - this is a fair range of options...
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HZ_29 = 0b00111111,
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HZ_33 = 0b00111110,
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HZ_40 = 0b00111101,
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HZ_50 = 0b00111100,
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HZ_67 = 0b00111011,
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HZ_100 = 0b00111010,
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HZ_200 = 0b00111001
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};
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// This is an UC8151 control chip. The display is a 2.9" grayscale EInk.
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const uint8_t display_start_sequence[] = {
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PWR, 5, VDS_INTERNAL | VDG_INTERNAL, VCOM_VD | VGHL_16V, 0b101011, 0b101011, 0b101011, // power setting
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PON, DELAY, 200, // power on and wait 200 ms
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BTST, 3, (START_10MS | STRENGTH_3 | OFF_6_58US), (START_10MS | STRENGTH_3 | OFF_6_58US), (START_10MS | STRENGTH_3 | OFF_6_58US),
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PSR, 1, (RES_128x296 | LUT_REG | FORMAT_BW | SCAN_UP | SHIFT_RIGHT | BOOSTER_ON | RESET_NONE),
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PFS, 1, FRAMES_1,
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TSE, 1, TEMP_INTERNAL | OFFSET_0,
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TCON, 1, 0x22, // tcon setting
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CDI, 1, 0b01001100, // vcom and data interval
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PLL, 1, HZ_100, // PLL set to 100 Hz
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// Look up tables for voltage sequence for pixel transition
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// Common voltage
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LUT_VCOM, 44,
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0x00, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x00, 0x8c, 0x8c, 0x00, 0x00, 0x04,
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0x00, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00,
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// White to white
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LUT_WW, 42,
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0x54, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x60, 0x8c, 0x8c, 0x00, 0x00, 0x04,
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0xa8, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Black to white
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LUT_BW, 42,
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0x54, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x60, 0x8c, 0x8c, 0x00, 0x00, 0x04,
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0xa8, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// White to black
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LUT_WB, 42,
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0xa8, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x60, 0x8c, 0x8c, 0x00, 0x00, 0x04,
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0x54, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Black to black
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LUT_BB, 42,
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0xa8, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x60, 0x8c, 0x8c, 0x00, 0x00, 0x04,
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0x54, 0x64, 0x64, 0x37, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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const uint8_t display_stop_sequence[] = {
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POF, 0x00 // Power off
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};
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const uint8_t refresh_sequence[] = {
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DRF, 0x00
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};
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void board_init(void) {
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// Drive the EN_3V3 pin high so the board stays awake on battery power
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enable_pin_obj.base.type = &digitalio_digitalinout_type;
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common_hal_digitalio_digitalinout_construct(&enable_pin_obj, &pin_GPIO10);
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common_hal_digitalio_digitalinout_switch_to_output(&enable_pin_obj, true, DRIVE_MODE_PUSH_PULL);
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// Never reset
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common_hal_digitalio_digitalinout_never_reset(&enable_pin_obj);
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// Set up the SPI object used to control the display
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fourwire_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
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busio_spi_obj_t *spi = &bus->inline_bus;
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common_hal_busio_spi_construct(spi, &pin_GPIO18, &pin_GPIO19, &pin_GPIO16, false);
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common_hal_busio_spi_never_reset(spi);
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// Set up the DisplayIO pin object
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bus->base.type = &fourwire_fourwire_type;
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common_hal_fourwire_fourwire_construct(bus,
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spi,
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&pin_GPIO20, // EPD_DC Command or data
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&pin_GPIO17, // EPD_CS Chip select
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&pin_GPIO21, // EPD_RST Reset
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1200000, // Baudrate
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0, // Polarity
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0); // Phase
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// Set up the DisplayIO epaper object
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epaperdisplay_epaperdisplay_obj_t *display = &allocate_display()->epaper_display;
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display->base.type = &epaperdisplay_epaperdisplay_type;
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common_hal_epaperdisplay_epaperdisplay_construct(
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display,
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bus,
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display_start_sequence, sizeof(display_start_sequence),
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0, // start up time
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display_stop_sequence, sizeof(display_stop_sequence),
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296, // width
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128, // height
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160, // ram_width
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296, // ram_height
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0, // colstart
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0, // rowstart
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270, // rotation
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NO_COMMAND, // set_column_window_command
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NO_COMMAND, // set_row_window_command
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NO_COMMAND, // set_current_column_command
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NO_COMMAND, // set_current_row_command
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DTM2, // write_black_ram_command
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true, // black_bits_inverted
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DTM1, // write_color_ram_command
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false, // color_bits_inverted
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0x000000, // highlight_color
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refresh_sequence, sizeof(refresh_sequence), // refresh_display_command
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1.0, // refresh_time
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&pin_GPIO26, // busy_pin
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false, // busy_state
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2.0, // seconds_per_frame
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false, // always_toggle_chip_select
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false, // grayscale
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false, // acep
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false, // two_byte_sequence_length
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false); // address_little_endian
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}
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void board_deinit(void) {
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epaperdisplay_epaperdisplay_obj_t *display = &displays[0].epaper_display;
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if (display->base.type == &epaperdisplay_epaperdisplay_type) {
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while (common_hal_epaperdisplay_epaperdisplay_get_busy(display)) {
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RUN_BACKGROUND_TASKS;
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}
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}
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common_hal_displayio_release_displays();
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}
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// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
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