145 lines
6.2 KiB
C
145 lines
6.2 KiB
C
// Copyright 2021 Paul Cotter (@gr1mr3aver)
|
|
// Copyright 2021 Nick Brassel (@tzarc)
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#include "qp_internal.h"
|
|
#include "qp_comms.h"
|
|
#include "qp_st7789.h"
|
|
#include "qp_st77xx_opcodes.h"
|
|
#include "qp_st7789_opcodes.h"
|
|
#include "qp_tft_panel.h"
|
|
|
|
#ifdef QUANTUM_PAINTER_ST7789_SPI_ENABLE
|
|
# include "qp_comms_spi.h"
|
|
#endif // QUANTUM_PAINTER_ST7789_SPI_ENABLE
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Common
|
|
|
|
// Driver storage
|
|
tft_panel_dc_reset_painter_device_t st7789_drivers[ST7789_NUM_DEVICES] = {0};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Automatic viewport offsets
|
|
|
|
#ifndef ST7789_NO_AUTOMATIC_OFFSETS
|
|
static inline void st7789_automatic_viewport_offsets(painter_device_t device, painter_rotation_t rotation) {
|
|
struct painter_driver_t *driver = (struct painter_driver_t *)device;
|
|
|
|
// clang-format off
|
|
const struct {
|
|
uint16_t offset_x;
|
|
uint16_t offset_y;
|
|
} rotation_offsets_240x240[] = {
|
|
[QP_ROTATION_0] = { .offset_x = 0, .offset_y = 0 },
|
|
[QP_ROTATION_90] = { .offset_x = 0, .offset_y = 0 },
|
|
[QP_ROTATION_180] = { .offset_x = 0, .offset_y = 80 },
|
|
[QP_ROTATION_270] = { .offset_x = 80, .offset_y = 0 },
|
|
};
|
|
// clang-format on
|
|
|
|
if (driver->panel_width == 240 && driver->panel_height == 240) {
|
|
driver->offset_x = rotation_offsets_240x240[rotation].offset_x;
|
|
driver->offset_y = rotation_offsets_240x240[rotation].offset_y;
|
|
}
|
|
}
|
|
#endif // ST7789_NO_AUTOMATIC_OFFSETS
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Initialization
|
|
|
|
__attribute__((weak)) bool qp_st7789_init(painter_device_t device, painter_rotation_t rotation) {
|
|
// clang-format off
|
|
const uint8_t st7789_init_sequence[] = {
|
|
// Command, Delay, N, Data[N]
|
|
ST77XX_CMD_RESET, 120, 0,
|
|
ST77XX_CMD_SLEEP_OFF, 5, 0,
|
|
ST77XX_SET_PIX_FMT, 0, 1, 0x55,
|
|
ST77XX_CMD_INVERT_ON, 0, 0,
|
|
ST77XX_CMD_NORMAL_ON, 0, 0,
|
|
ST77XX_CMD_DISPLAY_ON, 20, 0
|
|
};
|
|
// clang-format on
|
|
qp_comms_bulk_command_sequence(device, st7789_init_sequence, sizeof(st7789_init_sequence));
|
|
|
|
// Configure the rotation (i.e. the ordering and direction of memory writes in GRAM)
|
|
const uint8_t madctl[] = {
|
|
[QP_ROTATION_0] = ST77XX_MADCTL_RGB,
|
|
[QP_ROTATION_90] = ST77XX_MADCTL_RGB | ST77XX_MADCTL_MX | ST77XX_MADCTL_MV,
|
|
[QP_ROTATION_180] = ST77XX_MADCTL_RGB | ST77XX_MADCTL_MX | ST77XX_MADCTL_MY,
|
|
[QP_ROTATION_270] = ST77XX_MADCTL_RGB | ST77XX_MADCTL_MV | ST77XX_MADCTL_MY,
|
|
};
|
|
qp_comms_command_databyte(device, ST77XX_SET_MADCTL, madctl[rotation]);
|
|
|
|
#ifndef ST7789_NO_AUTOMATIC_VIEWPORT_OFFSETS
|
|
st7789_automatic_viewport_offsets(device, rotation);
|
|
#endif // ST7789_NO_AUTOMATIC_VIEWPORT_OFFSETS
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Driver vtable
|
|
|
|
const struct tft_panel_dc_reset_painter_driver_vtable_t st7789_driver_vtable = {
|
|
.base =
|
|
{
|
|
.init = qp_st7789_init,
|
|
.power = qp_tft_panel_power,
|
|
.clear = qp_tft_panel_clear,
|
|
.flush = qp_tft_panel_flush,
|
|
.pixdata = qp_tft_panel_pixdata,
|
|
.viewport = qp_tft_panel_viewport,
|
|
.palette_convert = qp_tft_panel_palette_convert_rgb565_swapped,
|
|
.append_pixels = qp_tft_panel_append_pixels_rgb565,
|
|
.append_pixdata = qp_tft_panel_append_pixdata,
|
|
},
|
|
.num_window_bytes = 2,
|
|
.swap_window_coords = false,
|
|
.opcodes =
|
|
{
|
|
.display_on = ST77XX_CMD_DISPLAY_ON,
|
|
.display_off = ST77XX_CMD_DISPLAY_OFF,
|
|
.set_column_address = ST77XX_SET_COL_ADDR,
|
|
.set_row_address = ST77XX_SET_ROW_ADDR,
|
|
.enable_writes = ST77XX_SET_MEM,
|
|
},
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// SPI
|
|
|
|
#ifdef QUANTUM_PAINTER_ST7789_SPI_ENABLE
|
|
|
|
// Factory function for creating a handle to the ST7789 device
|
|
painter_device_t qp_st7789_make_spi_device(uint16_t panel_width, uint16_t panel_height, pin_t chip_select_pin, pin_t dc_pin, pin_t reset_pin, uint16_t spi_divisor, int spi_mode) {
|
|
for (uint32_t i = 0; i < ST7789_NUM_DEVICES; ++i) {
|
|
tft_panel_dc_reset_painter_device_t *driver = &st7789_drivers[i];
|
|
if (!driver->base.driver_vtable) {
|
|
driver->base.driver_vtable = (const struct painter_driver_vtable_t *)&st7789_driver_vtable;
|
|
driver->base.comms_vtable = (const struct painter_comms_vtable_t *)&spi_comms_with_dc_vtable;
|
|
driver->base.panel_width = panel_width;
|
|
driver->base.panel_height = panel_height;
|
|
driver->base.rotation = QP_ROTATION_0;
|
|
driver->base.offset_x = 0;
|
|
driver->base.offset_y = 0;
|
|
driver->base.native_bits_per_pixel = 16; // RGB565
|
|
|
|
// SPI and other pin configuration
|
|
driver->base.comms_config = &driver->spi_dc_reset_config;
|
|
driver->spi_dc_reset_config.spi_config.chip_select_pin = chip_select_pin;
|
|
driver->spi_dc_reset_config.spi_config.divisor = spi_divisor;
|
|
driver->spi_dc_reset_config.spi_config.lsb_first = false;
|
|
driver->spi_dc_reset_config.spi_config.mode = spi_mode;
|
|
driver->spi_dc_reset_config.dc_pin = dc_pin;
|
|
driver->spi_dc_reset_config.reset_pin = reset_pin;
|
|
return (painter_device_t)driver;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#endif // QUANTUM_PAINTER_ST7789_SPI_ENABLE
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|