diff options
Diffstat (limited to 'drivers/painter/ssd1351/qp_ssd1351.c')
| -rw-r--r-- | drivers/painter/ssd1351/qp_ssd1351.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/painter/ssd1351/qp_ssd1351.c b/drivers/painter/ssd1351/qp_ssd1351.c new file mode 100644 index 0000000000..970e7e67f3 --- /dev/null +++ b/drivers/painter/ssd1351/qp_ssd1351.c @@ -0,0 +1,125 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_internal.h" +#include "qp_comms.h" +#include "qp_ssd1351.h" +#include "qp_ssd1351_opcodes.h" +#include "qp_tft_panel.h" + +#ifdef QUANTUM_PAINTER_SSD1351_SPI_ENABLE +# include "qp_comms_spi.h" +#endif // QUANTUM_PAINTER_SSD1351_SPI_ENABLE + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Common + +// Driver storage +tft_panel_dc_reset_painter_device_t ssd1351_drivers[SSD1351_NUM_DEVICES] = {0}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Initialization + +bool qp_ssd1351_init(painter_device_t device, painter_rotation_t rotation) { + tft_panel_dc_reset_painter_device_t *driver = (tft_panel_dc_reset_painter_device_t *)device; + + // clang-format off + const uint8_t ssd1351_init_sequence[] = { + // Command, Delay, N, Data[N] + SSD1351_COMMANDLOCK, 5, 1, 0x12, + SSD1351_COMMANDLOCK, 5, 1, 0xB1, + SSD1351_DISPLAYOFF, 5, 0, + SSD1351_CLOCKDIV, 5, 1, 0xF1, + SSD1351_MUXRATIO, 5, 1, 0x7F, + SSD1351_DISPLAYOFFSET, 5, 1, 0x00, + SSD1351_SETGPIO, 5, 1, 0x00, + SSD1351_FUNCTIONSELECT, 5, 1, 0x01, + SSD1351_PRECHARGE, 5, 1, 0x32, + SSD1351_VCOMH, 5, 1, 0x05, + SSD1351_NORMALDISPLAY, 5, 0, + SSD1351_CONTRASTABC, 5, 3, 0xC8, 0x80, 0xC8, + SSD1351_CONTRASTMASTER, 5, 1, 0x0F, + SSD1351_SETVSL, 5, 3, 0xA0, 0xB5, 0x55, + SSD1351_PRECHARGE2, 5, 1, 0x01, + SSD1351_DISPLAYON, 5, 0, + }; + // clang-format on + qp_comms_bulk_command_sequence(device, ssd1351_init_sequence, sizeof(ssd1351_init_sequence)); + + // Configure the rotation (i.e. the ordering and direction of memory writes in GRAM) + const uint8_t madctl[] = { + [QP_ROTATION_0] = SSD1351_MADCTL_BGR | SSD1351_MADCTL_MY, + [QP_ROTATION_90] = SSD1351_MADCTL_BGR | SSD1351_MADCTL_MX | SSD1351_MADCTL_MY | SSD1351_MADCTL_MV, + [QP_ROTATION_180] = SSD1351_MADCTL_BGR | SSD1351_MADCTL_MX, + [QP_ROTATION_270] = SSD1351_MADCTL_BGR | SSD1351_MADCTL_MV, + }; + qp_comms_command_databyte(device, SSD1351_SETREMAP, madctl[rotation]); + qp_comms_command_databyte(device, SSD1351_STARTLINE, (rotation == QP_ROTATION_0 || rotation == QP_ROTATION_90) ? driver->base.panel_height : 0); + + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Driver vtable + +const struct tft_panel_dc_reset_painter_driver_vtable_t ssd1351_driver_vtable = { + .base = + { + .init = qp_ssd1351_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, + .append_pixels = qp_tft_panel_append_pixels, + }, + .rgb888_to_native16bit = qp_rgb888_to_rgb565_swapped, + .num_window_bytes = 1, + .swap_window_coords = true, + .opcodes = + { + .display_on = SSD1351_DISPLAYON, + .display_off = SSD1351_DISPLAYOFF, + .set_column_address = SSD1351_SETCOLUMN, + .set_row_address = SSD1351_SETROW, + .enable_writes = SSD1351_WRITERAM, + }, +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// SPI + +#ifdef QUANTUM_PAINTER_SSD1351_SPI_ENABLE + +// Factory function for creating a handle to the SSD1351 device +painter_device_t qp_ssd1351_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 < SSD1351_NUM_DEVICES; ++i) { + tft_panel_dc_reset_painter_device_t *driver = &ssd1351_drivers[i]; + if (!driver->base.driver_vtable) { + driver->base.driver_vtable = (const struct painter_driver_vtable_t *)&ssd1351_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_SSD1351_SPI_ENABLE + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |