1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/painter/tft_panel/qp_tft_panel.h b/drivers/painter/tft_panel/qp_tft_panel.h
new file mode 100644
index 0000000000..6eddfc503d
--- /dev/null
+++ b/drivers/painter/tft_panel/qp_tft_panel.h
@@ -0,0 +1,67 @@
+// Copyright 2021 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "color.h"
+#include "qp_internal.h"
+
+#ifdef QUANTUM_PAINTER_SPI_ENABLE
+#    include "qp_comms_spi.h"
+#endif // QUANTUM_PAINTER_SPI_ENABLE
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Common TFT panel implementation using D/C, and RST pins.
+
+typedef uint16_t (*rgb888_to_native_uint16_t)(uint8_t r, uint8_t g, uint8_t b);
+
+// Driver vtable with extras
+struct tft_panel_dc_reset_painter_driver_vtable_t {
+    struct painter_driver_vtable_t base; // must be first, so it can be cast to/from the painter_driver_vtable_t* type
+
+    // Conversion function for palette entries
+    rgb888_to_native_uint16_t rgb888_to_native16bit;
+
+    // Number of bytes for transmitting x/y coordinates
+    uint8_t num_window_bytes;
+
+    // Whether or not the x/y coords should be swapped on 90/270 rotation
+    bool swap_window_coords;
+
+    // Opcodes for normal display operation
+    struct {
+        uint8_t display_on;
+        uint8_t display_off;
+        uint8_t set_column_address;
+        uint8_t set_row_address;
+        uint8_t enable_writes;
+    } opcodes;
+};
+
+// Device definition
+typedef struct tft_panel_dc_reset_painter_device_t {
+    struct painter_driver_t base; // must be first, so it can be cast to/from the painter_device_t* type
+
+    union {
+#ifdef QUANTUM_PAINTER_SPI_ENABLE
+        // SPI-based configurables
+        struct qp_comms_spi_dc_reset_config_t spi_dc_reset_config;
+#endif // QUANTUM_PAINTER_SPI_ENABLE
+
+        // TODO: I2C/parallel etc.
+    };
+} tft_panel_dc_reset_painter_device_t;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Forward declarations for injecting into concrete driver vtables
+
+bool qp_tft_panel_power(painter_device_t device, bool power_on);
+bool qp_tft_panel_clear(painter_device_t device);
+bool qp_tft_panel_flush(painter_device_t device);
+bool qp_tft_panel_viewport(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom);
+bool qp_tft_panel_pixdata(painter_device_t device, const void *pixel_data, uint32_t native_pixel_count);
+bool qp_tft_panel_palette_convert(painter_device_t device, int16_t palette_size, qp_pixel_t *palette);
+bool qp_tft_panel_append_pixels(painter_device_t device, uint8_t *target_buffer, qp_pixel_t *palette, uint32_t pixel_offset, uint32_t pixel_count, uint8_t *palette_indices);
+
+uint16_t qp_rgb888_to_rgb565(uint8_t r, uint8_t g, uint8_t b);
+uint16_t qp_rgb888_to_rgb565_swapped(uint8_t r, uint8_t g, uint8_t b);
+uint16_t qp_rgb888_to_bgr565(uint8_t r, uint8_t g, uint8_t b);
+uint16_t qp_rgb888_to_bgr565_swapped(uint8_t r, uint8_t g, uint8_t b);