121 lines
5.6 KiB
C
121 lines
5.6 KiB
C
// Copyright 2021 Nick Brassel (@tzarc)
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "qp_internal.h"
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#include "qp_comms.h"
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#include "qp_ili9488.h"
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#include "qp_ili9xxx_opcodes.h"
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#include "qp_tft_panel.h"
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#ifdef QUANTUM_PAINTER_ILI9488_SPI_ENABLE
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# include <qp_comms_spi.h>
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#endif // QUANTUM_PAINTER_ILI9488_SPI_ENABLE
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Common
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// Driver storage
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tft_panel_dc_reset_painter_device_t ili9488_drivers[ILI9488_NUM_DEVICES] = {0};
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Initialization
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__attribute__((weak)) bool qp_ili9488_init(painter_device_t device, painter_rotation_t rotation) {
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// clang-format off
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const uint8_t ili9488_init_sequence[] = {
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// Command, Delay, N, Data[N]
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ILI9XXX_CMD_RESET, 120, 0,
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ILI9XXX_SET_PGAMMA, 0, 15, 0x00, 0x03, 0x09, 0x08, 0x16, 0x0A, 0x3F, 0x78, 0x4C, 0x09, 0x0A, 0x08, 0x16, 0x1A, 0x0F,
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ILI9XXX_SET_NGAMMA, 0, 15, 0x00, 0x16, 0x19, 0x03, 0x0F, 0x05, 0x32, 0x45, 0x46, 0x04, 0x0E, 0x0D, 0x35, 0x37, 0x0F,
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ILI9XXX_SET_POWER_CTL_1, 0, 2, 0x17, 0x15,
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ILI9XXX_SET_POWER_CTL_2, 0, 1, 0x41,
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ILI9XXX_SET_VCOM_CTL_1, 0, 3, 0x00, 0x12, 0x80,
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ILI9XXX_SET_PIX_FMT, 0, 1, 0x66,
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ILI9XXX_SET_RGB_IF_SIG_CTL, 0, 1, 0x80,
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ILI9XXX_SET_FRAME_CTL_NORMAL, 0, 1, 0xA0,
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ILI9XXX_SET_INVERSION_CTL, 0, 1, 0x02,
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ILI9XXX_SET_FUNCTION_CTL, 0, 2, 0x02, 0x02,
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ILI9XXX_SET_IMAGE_FUNCTION, 0, 1, 0x00,
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ILI9XXX_SET_PUMP_RATIO_CTL, 0, 4, 0xA9, 0x51, 0x2C, 0x82,
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ILI9XXX_CMD_SLEEP_OFF, 5, 0,
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ILI9XXX_CMD_DISPLAY_ON, 20, 0
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};
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// clang-format on
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qp_comms_bulk_command_sequence(device, ili9488_init_sequence, sizeof(ili9488_init_sequence));
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// Configure the rotation (i.e. the ordering and direction of memory writes in GRAM)
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const uint8_t madctl[] = {
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[QP_ROTATION_0] = ILI9XXX_MADCTL_BGR | ILI9XXX_MADCTL_MY,
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[QP_ROTATION_90] = ILI9XXX_MADCTL_BGR | ILI9XXX_MADCTL_MX | ILI9XXX_MADCTL_MV | ILI9XXX_MADCTL_MY,
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[QP_ROTATION_180] = ILI9XXX_MADCTL_BGR | ILI9XXX_MADCTL_MX,
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[QP_ROTATION_270] = ILI9XXX_MADCTL_BGR | ILI9XXX_MADCTL_MV,
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};
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qp_comms_command_databyte(device, ILI9XXX_SET_MEM_ACS_CTL, madctl[rotation]);
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Driver vtable
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const struct tft_panel_dc_reset_painter_driver_vtable_t ili9488_driver_vtable = {
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.base =
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{
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.init = qp_ili9488_init,
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.power = qp_tft_panel_power,
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.clear = qp_tft_panel_clear,
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.flush = qp_tft_panel_flush,
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.pixdata = qp_tft_panel_pixdata,
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.viewport = qp_tft_panel_viewport,
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.palette_convert = qp_tft_panel_palette_convert_rgb888,
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.append_pixels = qp_tft_panel_append_pixels_rgb888,
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},
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.num_window_bytes = 2,
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.swap_window_coords = false,
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.opcodes =
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{
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.display_on = ILI9XXX_CMD_DISPLAY_ON,
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.display_off = ILI9XXX_CMD_DISPLAY_OFF,
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.set_column_address = ILI9XXX_SET_COL_ADDR,
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.set_row_address = ILI9XXX_SET_PAGE_ADDR,
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.enable_writes = ILI9XXX_SET_MEM,
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},
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// SPI
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#ifdef QUANTUM_PAINTER_ILI9488_SPI_ENABLE
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// Factory function for creating a handle to the ILI9488 device
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painter_device_t qp_ili9488_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) {
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for (uint32_t i = 0; i < ILI9488_NUM_DEVICES; ++i) {
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tft_panel_dc_reset_painter_device_t *driver = &ili9488_drivers[i];
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if (!driver->base.driver_vtable) {
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driver->base.driver_vtable = (const struct painter_driver_vtable_t *)&ili9488_driver_vtable;
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driver->base.comms_vtable = (const struct painter_comms_vtable_t *)&spi_comms_with_dc_vtable;
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driver->base.native_bits_per_pixel = 24; // RGB888
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driver->base.panel_width = panel_width;
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driver->base.panel_height = panel_height;
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driver->base.rotation = QP_ROTATION_0;
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driver->base.offset_x = 0;
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driver->base.offset_y = 0;
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// SPI and other pin configuration
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driver->base.comms_config = &driver->spi_dc_reset_config;
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driver->spi_dc_reset_config.spi_config.chip_select_pin = chip_select_pin;
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driver->spi_dc_reset_config.spi_config.divisor = spi_divisor;
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driver->spi_dc_reset_config.spi_config.lsb_first = false;
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driver->spi_dc_reset_config.spi_config.mode = spi_mode;
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driver->spi_dc_reset_config.dc_pin = dc_pin;
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driver->spi_dc_reset_config.reset_pin = reset_pin;
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return (painter_device_t)driver;
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}
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}
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return NULL;
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}
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#endif // QUANTUM_PAINTER_ILI9488_SPI_ENABLE
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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