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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "boards/board.h"
#include "mpconfigboard.h"
#include "hal/include/hal_gpio.h"
#include "shared-bindings/busio/SPI.h"
#include "shared-bindings/displayio/FourWire.h"
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/mipi_constants.h"
#include "tick.h"
displayio_fourwire_obj_t board_display_obj;
typedef struct {
const uint32_t *config_data;
void *handoverHID;
void *handoverMSC;
const char *info_uf2;
} UF2_BInfo;
#define APP_START_ADDRESS 0x00004000
#define UF2_BINFO ((UF2_BInfo *)(APP_START_ADDRESS - sizeof(UF2_BInfo)))
#define CFG_DISPLAY_CFG0 39
#define CFG_MAGIC0 0x1e9e10f1
#define DELAY 0x80
uint32_t lookupCfg(uint32_t key, uint32_t defl) {
const uint32_t *ptr = UF2_BINFO->config_data;
if (!ptr || (((uint32_t)ptr) & 3) || *ptr != CFG_MAGIC0) {
// no config data!
} else {
ptr += 4;
while (*ptr) {
if (*ptr == key)
return ptr[1];
ptr += 2;
}
}
return defl;
}
uint8_t display_init_sequence[] = {
0x01, 0 | DELAY, 150, // SWRESET
0x11, 0 | DELAY, 255, // SLPOUT
0xb1, 3, 0x01, 0x2C, 0x2D, // _FRMCTR1
0xb2, 3, 0x01, 0x2C, 0x2D, //
0xb3, 6, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D,
0xb4, 1, 0x07, // _INVCTR line inversion
0xc0, 3, 0xa2, 0x02, 0x84, // _PWCTR1 GVDD = 4.7V, 1.0uA
0xc1, 1, 0xc5, // _PWCTR2 VGH=14.7V, VGL=-7.35V
0xc2, 2, 0x0a, 0x00, // _PWCTR3 Opamp current small, Boost frequency
0xc3, 2, 0x8a, 0x2a,
0xc4, 2, 0x8a, 0xee,
0xc5, 1, 0x0e, // _VMCTR1 VCOMH = 4V, VOML = -1.1V
0x2a, 0, // _INVOFF
0x36, 1, 0xa8, // _MADCTL
// 1 clk cycle nonoverlap, 2 cycle gate rise, 3 cycle osc equalie,
// fix on VTL
0x3a, 1, 0x05, // COLMOD - 16bit color
0xe0, 16, 0x02, 0x1c, 0x07, 0x12, // _GMCTRP1 Gamma
0x37, 0x32, 0x29, 0x2d,
0x29, 0x25, 0x2B, 0x39,
0x00, 0x01, 0x03, 0x10,
0xe1, 16, 0x03, 0x1d, 0x07, 0x06, // _GMCTRN1
0x2E, 0x2C, 0x29, 0x2D,
0x2E, 0x2E, 0x37, 0x3F,
0x00, 0x00, 0x02, 0x10,
0x13, 0 | DELAY, 10, // _NORON
0x29, 0 | DELAY, 100, // _DISPON
};
void board_init(void) {
busio_spi_obj_t* spi = &displays[0].fourwire_bus.inline_bus;
common_hal_busio_spi_construct(spi, &pin_PA13, &pin_PA15, NULL);
common_hal_busio_spi_never_reset(spi);
displayio_fourwire_obj_t* bus = &displays[0].fourwire_bus;
bus->base.type = &displayio_fourwire_type;
common_hal_displayio_fourwire_construct(bus,
spi,
&pin_PA16, // TFT_DC Command or data
&pin_PA11, // TFT_CS Chip select
&pin_PA17, // TFT_RST Reset
60000000, // Baudrate
0, // Polarity
0); // Phase
uint32_t cfg0 = lookupCfg(CFG_DISPLAY_CFG0, 0x000000);
uint32_t offX = (cfg0 >> 8) & 0xff;
uint32_t offY = (cfg0 >> 16) & 0xff;
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;
common_hal_displayio_display_construct(display,
bus,
160, // Width (after rotation)
128, // Height (after rotation)
offX, // column start
offY, // row start
0, // rotation
16, // Color depth
false, // grayscale
false, // pixels in byte share row. only used for depth < 8
1, // bytes per cell. Only valid for depths < 8
false, // reverse_pixels_in_byte. Only valid for depths < 8
true, // reverse_pixels_in_word
MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command
MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command
MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command
0x37, // set vertical scroll command
display_init_sequence,
sizeof(display_init_sequence),
NULL, // backlight pin
NO_BRIGHTNESS_COMMAND,
1.0f, // brightness (ignored)
true, // auto_brightness
false, // single_byte_bounds
false, // data_as_commands
false, // auto_refresh
20, // native_frames_per_second
true); // backlight_on_high
}
bool board_requests_safe_mode(void) {
return false;
}
void reset_board(void) {
}
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