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MacroPad RP2040: Add initialization for the OLED display

This commit is contained in:
Radomir Dopieralski 2021-06-29 17:30:51 +02:00
parent 8a5a7457ab
commit b8c4f7d685
2 changed files with 78 additions and 2 deletions
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77
ports/raspberrypi/boards/adafruit_macropad_rp2040/board.c
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@ -24,13 +24,86 @@
* THE SOFTWARE.
*/
#include "supervisor/board.h"
#include "shared-bindings/board/__init__.h"
#include "shared-bindings/displayio/FourWire.h"
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/mipi_constants.h"
#include "shared-bindings/busio/SPI.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "src/rp2_common/hardware_gpio/include/hardware/gpio.h"
#include "supervisor/shared/board.h"
displayio_fourwire_obj_t board_display_obj;
#define DELAY 0x80
uint8_t display_init_sequence[] = {
0xae, 0, // sleep
0xd5, 1, 0x80, // fOsc divide by 2
0xa8, 1, 0x3f, // multiplex 64
0xd3, 1, 0x00, // offset 0
0x40, 1, 0x00, // start line 0
0xad, 1, 0x8b, // dc/dc on
0xa1, 0, // segment remap = 0
0xc8, 0, // scan incr
0xda, 1, 0x12, // com pins
0x81, 1, 0xff, // contrast 255
0xd9, 1, 0x1f, // pre/dis-charge 2DCLKs/2CLKs
0xdb, 1, 0x20, // VCOM deslect 0.770
0x20, 1, 0x20,
0x33, 0, // VPP 9V
0xa6, 0, // not inverted
0xa4, 0, // normal
0xaf, 0, // on
};
void board_init(void) {
busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
common_hal_busio_spi_construct(spi, &pin_GPIO26, &pin_GPIO27, 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_GPIO24, // Command or data
&pin_GPIO22, // Chip select
&pin_GPIO23, // Reset
1000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t *display = &displays[0].display;
display->base.type = &displayio_display_type;
common_hal_displayio_display_construct(display,
bus,
128, // Width
64, // Height
2, // column start
0, // row start
0, // rotation
1, // Color depth
true, // grayscale
false, // pixels in byte share row. Only used with 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
0, // Set column command
0, // Set row command
0, // Write memory command
0xd3, // set vertical scroll command
display_init_sequence,
sizeof(display_init_sequence),
NULL,
0x81,
1.0f, // brightness
false, // auto_brightness
true, // single_byte_bounds
true, // data as commands
true, // auto_refresh
60, // native_frames_per_second
true, // backlight_on_high
true); // SH1107_addressing
}
bool board_requests_safe_mode(void) {

3
ports/raspberrypi/boards/adafruit_macropad_rp2040/pins.c
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@ -1,4 +1,5 @@
#include "shared-bindings/board/__init__.h"
#include "shared-module/displayio/__init__.h"
STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_KEY1), MP_ROM_PTR(&pin_GPIO1) },
@ -43,5 +44,7 @@ STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_i2c_obj) },
{ MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display)}
};
MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);