diff options
Diffstat (limited to 'drivers/painter/ili9xxx/qp_ili9341.c')
| -rw-r--r-- | drivers/painter/ili9xxx/qp_ili9341.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/drivers/painter/ili9xxx/qp_ili9341.c b/drivers/painter/ili9xxx/qp_ili9341.c new file mode 100644 index 0000000000..1f41dcfc0b --- /dev/null +++ b/drivers/painter/ili9xxx/qp_ili9341.c @@ -0,0 +1,128 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_internal.h" +#include "qp_comms.h" +#include "qp_ili9341.h" +#include "qp_ili9xxx_opcodes.h" +#include "qp_tft_panel.h" + +#ifdef QUANTUM_PAINTER_ILI9341_SPI_ENABLE +# include <qp_comms_spi.h> +#endif // QUANTUM_PAINTER_ILI9341_SPI_ENABLE + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Common + +// Driver storage +tft_panel_dc_reset_painter_device_t ili9341_drivers[ILI9341_NUM_DEVICES] = {0}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Initialization + +bool qp_ili9341_init(painter_device_t device, painter_rotation_t rotation) { + // clang-format off + const uint8_t ili9341_init_sequence[] = { + // Command, Delay, N, Data[N] + ILI9XXX_CMD_RESET, 120, 0, + ILI9XXX_CMD_SLEEP_OFF, 5, 0, + ILI9XXX_POWER_CTL_A, 0, 5, 0x39, 0x2C, 0x00, 0x34, 0x02, + ILI9XXX_POWER_CTL_B, 0, 3, 0x00, 0xD9, 0x30, + ILI9XXX_POWER_ON_SEQ_CTL, 0, 4, 0x64, 0x03, 0x12, 0x81, + ILI9XXX_SET_PUMP_RATIO_CTL, 0, 1, 0x20, + ILI9XXX_SET_POWER_CTL_1, 0, 1, 0x26, + ILI9XXX_SET_POWER_CTL_2, 0, 1, 0x11, + ILI9XXX_SET_VCOM_CTL_1, 0, 2, 0x35, 0x3E, + ILI9XXX_SET_VCOM_CTL_2, 0, 1, 0xBE, + ILI9XXX_DRV_TIMING_CTL_A, 0, 3, 0x85, 0x10, 0x7A, + ILI9XXX_DRV_TIMING_CTL_B, 0, 2, 0x00, 0x00, + ILI9XXX_SET_BRIGHTNESS, 0, 1, 0xFF, + ILI9XXX_ENABLE_3_GAMMA, 0, 1, 0x00, + ILI9XXX_SET_GAMMA, 0, 1, 0x01, + ILI9XXX_SET_PGAMMA, 0, 15, 0x0F, 0x29, 0x24, 0x0C, 0x0E, 0x09, 0x4E, 0x78, 0x3C, 0x09, 0x13, 0x05, 0x17, 0x11, 0x00, + ILI9XXX_SET_NGAMMA, 0, 15, 0x00, 0x16, 0x1B, 0x04, 0x11, 0x07, 0x31, 0x33, 0x42, 0x05, 0x0C, 0x0A, 0x28, 0x2F, 0x0F, + ILI9XXX_SET_PIX_FMT, 0, 1, 0x05, + ILI9XXX_SET_FRAME_CTL_NORMAL, 0, 2, 0x00, 0x1B, + ILI9XXX_SET_FUNCTION_CTL, 0, 2, 0x0A, 0xA2, + ILI9XXX_CMD_PARTIAL_OFF, 0, 0, + ILI9XXX_CMD_DISPLAY_ON, 20, 0 + }; + // clang-format on + qp_comms_bulk_command_sequence(device, ili9341_init_sequence, sizeof(ili9341_init_sequence)); + + // Configure the rotation (i.e. the ordering and direction of memory writes in GRAM) + const uint8_t madctl[] = { + [QP_ROTATION_0] = ILI9XXX_MADCTL_BGR, + [QP_ROTATION_90] = ILI9XXX_MADCTL_BGR | ILI9XXX_MADCTL_MX | ILI9XXX_MADCTL_MV, + [QP_ROTATION_180] = ILI9XXX_MADCTL_BGR | ILI9XXX_MADCTL_MX | ILI9XXX_MADCTL_MY, + [QP_ROTATION_270] = ILI9XXX_MADCTL_BGR | ILI9XXX_MADCTL_MV | ILI9XXX_MADCTL_MY, + }; + qp_comms_command_databyte(device, ILI9XXX_SET_MEM_ACS_CTL, madctl[rotation]); + + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Driver vtable + +const struct tft_panel_dc_reset_painter_driver_vtable_t ili9341_driver_vtable = { + .base = + { + .init = qp_ili9341_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 = 2, + .swap_window_coords = false, + .opcodes = + { + .display_on = ILI9XXX_CMD_DISPLAY_ON, + .display_off = ILI9XXX_CMD_DISPLAY_OFF, + .set_column_address = ILI9XXX_SET_COL_ADDR, + .set_row_address = ILI9XXX_SET_PAGE_ADDR, + .enable_writes = ILI9XXX_SET_MEM, + }, +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// SPI + +#ifdef QUANTUM_PAINTER_ILI9341_SPI_ENABLE + +// Factory function for creating a handle to the ILI9341 device +painter_device_t qp_ili9341_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 < ILI9341_NUM_DEVICES; ++i) { + tft_panel_dc_reset_painter_device_t *driver = &ili9341_drivers[i]; + if (!driver->base.driver_vtable) { + driver->base.driver_vtable = (const struct painter_driver_vtable_t *)&ili9341_driver_vtable; + driver->base.comms_vtable = (const struct painter_comms_vtable_t *)&spi_comms_with_dc_vtable; + driver->base.native_bits_per_pixel = 16; // RGB565 + 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; + + // 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_ILI9341_SPI_ENABLE + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |