Quantum Painter (#10174)

* Install dependencies before executing unit tests.

* Split out UTF-8 decoder.

* Fixup python formatting rules.

* Add documentation for QGF/QFF and the RLE format used.

* Add CLI commands for converting images and fonts.

* Add stub rules.mk for QP.

* Add stream type.

* Add base driver and comms interfaces.

* Add support for SPI, SPI+D/C comms drivers.

* Include <qp.h> when enabled.

* Add base support for SPI+D/C+RST panels, as well as concrete implementation of ST7789.

* Add support for GC9A01.

* Add support for ILI9341.

* Add support for ILI9163.

* Add support for SSD1351.

* Implement qp_setpixel, including pixdata buffer management.

* Implement qp_line.

* Implement qp_rect.

* Implement qp_circle.

* Implement qp_ellipse.

* Implement palette interpolation.

* Allow for streams to work with either flash or RAM.

* Image loading.

* Font loading.

* QGF palette loading.

* Progressive decoder of pixel data supporting Raw+RLE, 1-,2-,4-,8-bpp monochrome and palette-based images.

* Image drawing.

* Animations.

* Font rendering.

* Check against 256 colours, dump out the loaded palette if debugging enabled.

* Fix build.

* AVR is not the intended audience.

* `qmk format-c`

* Generation fix.

* First batch of docs.

* More docs and examples.

* Review comments.

* Public API documentation.

5 files changed, 423 insertions, 0 deletions

diff --git a/drivers/painter/ili9xxx/qp_ili9163.c b/drivers/painter/ili9xxx/qp_ili9163.c
new file mode 100644
index 0000000000..beaac0fbb5
--- /dev/null
+++ b/drivers/painter/ili9xxx/qp_ili9163.c
@@ -0,0 +1,121 @@
+// Copyright 2021 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "qp_internal.h"
+#include "qp_comms.h"
+#include "qp_ili9163.h"
+#include "qp_ili9xxx_opcodes.h"
+#include "qp_tft_panel.h"
+
+#ifdef QUANTUM_PAINTER_ILI9163_SPI_ENABLE
+#    include "qp_comms_spi.h"
+#endif // QUANTUM_PAINTER_ILI9163_SPI_ENABLE
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Common
+
+// Driver storage
+tft_panel_dc_reset_painter_device_t ili9163_drivers[ILI9163_NUM_DEVICES] = {0};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Initialization
+
+bool qp_ili9163_init(painter_device_t device, painter_rotation_t rotation) {
+    // clang-format off
+    const uint8_t ili9163_init_sequence[] = {
+        // Command,                 Delay,  N, Data[N]
+        ILI9XXX_CMD_RESET,            120,  0,
+        ILI9XXX_CMD_SLEEP_OFF,          5,  0,
+        ILI9XXX_SET_PIX_FMT,            0,  1, 0x55,
+        ILI9XXX_SET_GAMMA,              0,  1, 0x04,
+        ILI9XXX_ENABLE_3_GAMMA,         0,  1, 0x01,
+        ILI9XXX_SET_FUNCTION_CTL,       0,  2, 0xFF, 0x06,
+        ILI9XXX_SET_PGAMMA,             0, 15, 0x36, 0x29, 0x12, 0x22, 0x1C, 0x15, 0x42, 0xB7, 0x2F, 0x13, 0x12, 0x0A, 0x11, 0x0B, 0x06,
+        ILI9XXX_SET_NGAMMA,             0, 15, 0x09, 0x16, 0x2D, 0x0D, 0x13, 0x15, 0x40, 0x48, 0x53, 0x0C, 0x1D, 0x25, 0x2E, 0x34, 0x39,
+        ILI9XXX_SET_FRAME_CTL_NORMAL,   0,  2, 0x08, 0x02,
+        ILI9XXX_SET_POWER_CTL_1,        0,  2, 0x0A, 0x02,
+        ILI9XXX_SET_POWER_CTL_2,        0,  1, 0x02,
+        ILI9XXX_SET_VCOM_CTL_1,         0,  2, 0x50, 0x63,
+        ILI9XXX_SET_VCOM_CTL_2,         0,  1, 0x00,
+        ILI9XXX_CMD_PARTIAL_OFF,        0,  0,
+        ILI9XXX_CMD_DISPLAY_ON,        20,  0
+    };
+    // clang-format on
+    qp_comms_bulk_command_sequence(device, ili9163_init_sequence, sizeof(ili9163_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 ili9163_driver_vtable = {
+    .base =
+        {
+            .init            = qp_ili9163_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_ILI9163_SPI_ENABLE
+
+// Factory function for creating a handle to the ILI9163 device
+painter_device_t qp_ili9163_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 < ILI9163_NUM_DEVICES; ++i) {
+        tft_panel_dc_reset_painter_device_t *driver = &ili9163_drivers[i];
+        if (!driver->base.driver_vtable) {
+            driver->base.driver_vtable         = (const struct painter_driver_vtable_t *)&ili9163_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_ILI9163_SPI_ENABLE
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/drivers/painter/ili9xxx/qp_ili9163.h b/drivers/painter/ili9xxx/qp_ili9163.h
new file mode 100644
index 0000000000..88d23629a9
--- /dev/null
+++ b/drivers/painter/ili9xxx/qp_ili9163.h
@@ -0,0 +1,37 @@
+// Copyright 2021 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "gpio.h"
+#include "qp_internal.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ILI9163 configurables (add to your keyboard's config.h)
+
+#ifndef ILI9163_NUM_DEVICES
+/**
+ * @def This controls the maximum number of ILI9163 devices that Quantum Painter can communicate with at any one time.
+ *      Increasing this number allows for multiple displays to be used.
+ */
+#    define ILI9163_NUM_DEVICES 1
+#endif
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ILI9163 device factories
+
+#ifdef QUANTUM_PAINTER_ILI9163_SPI_ENABLE
+/**
+ * Factory method for an ILI9163 SPI LCD device.
+ *
+ * @param panel_width[in] the width of the display panel
+ * @param panel_height[in] the height of the display panel
+ * @param chip_select_pin[in] the GPIO pin used for SPI chip select
+ * @param dc_pin[in] the GPIO pin used for D/C control
+ * @param reset_pin[in] the GPIO pin used for RST
+ * @param spi_divisor[in] the SPI divisor to use when communicating with the display
+ * @param spi_mode[in] the SPI mode to use when communicating with the display
+ * @return the device handle used with all drawing routines in Quantum Painter
+ */
+painter_device_t qp_ili9163_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);
+#endif // QUANTUM_PAINTER_ILI9163_SPI_ENABLE
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
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/drivers/painter/ili9xxx/qp_ili9341.h b/drivers/painter/ili9xxx/qp_ili9341.h
new file mode 100644
index 0000000000..28b0152a84
--- /dev/null
+++ b/drivers/painter/ili9xxx/qp_ili9341.h
@@ -0,0 +1,37 @@
+// Copyright 2021 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "gpio.h"
+#include "qp_internal.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ILI9341 configurables (add to your keyboard's config.h)
+
+#ifndef ILI9341_NUM_DEVICES
+/**
+ * @def This controls the maximum number of ILI9341 devices that Quantum Painter can communicate with at any one time.
+ *      Increasing this number allows for multiple displays to be used.
+ */
+#    define ILI9341_NUM_DEVICES 1
+#endif
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ILI9341 device factories
+
+#ifdef QUANTUM_PAINTER_ILI9341_SPI_ENABLE
+/**
+ * Factory method for an ILI9341 SPI LCD device.
+ *
+ * @param panel_width[in] the width of the display panel
+ * @param panel_height[in] the height of the display panel
+ * @param chip_select_pin[in] the GPIO pin used for SPI chip select
+ * @param dc_pin[in] the GPIO pin used for D/C control
+ * @param reset_pin[in] the GPIO pin used for RST
+ * @param spi_divisor[in] the SPI divisor to use when communicating with the display
+ * @param spi_mode[in] the SPI mode to use when communicating with the display
+ * @return the device handle used with all drawing routines in Quantum Painter
+ */
+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);
+#endif // QUANTUM_PAINTER_ILI9341_SPI_ENABLE
diff --git a/drivers/painter/ili9xxx/qp_ili9xxx_opcodes.h b/drivers/painter/ili9xxx/qp_ili9xxx_opcodes.h
new file mode 100644
index 0000000000..1fa395cb89
--- /dev/null
+++ b/drivers/painter/ili9xxx/qp_ili9xxx_opcodes.h
@@ -0,0 +1,100 @@
+// Copyright 2021 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ILI9xxx command opcodes
+#define ILI9XXX_CMD_NOP 0x00                // No operation
+#define ILI9XXX_CMD_RESET 0x01              // Software reset
+#define ILI9XXX_GET_ID_INFO 0x04            // Get ID information
+#define ILI9XXX_GET_STATUS 0x09             // Get status
+#define ILI9XXX_GET_PWR_MODE 0x0A           // Get power mode
+#define ILI9XXX_GET_MADCTL 0x0B             // Get MADCTL
+#define ILI9XXX_GET_PIX_FMT 0x0C            // Get pixel format
+#define ILI9XXX_GET_IMG_FMT 0x0D            // Get image format
+#define ILI9XXX_GET_SIG_MODE 0x0E           // Get signal mode
+#define ILI9XXX_GET_SELF_DIAG 0x0F          // Get self-diagnostics
+#define ILI9XXX_CMD_SLEEP_ON 0x10           // Enter sleep mode
+#define ILI9XXX_CMD_SLEEP_OFF 0x11          // Exist sleep mode
+#define ILI9XXX_CMD_PARTIAL_ON 0x12         // Enter partial mode
+#define ILI9XXX_CMD_PARTIAL_OFF 0x13        // Exit partial mode
+#define ILI9XXX_CMD_INVERT_ON 0x20          // Enter inverted mode
+#define ILI9XXX_CMD_INVERT_OFF 0x21         // Exit inverted mode
+#define ILI9XXX_SET_GAMMA 0x26              // Set gamma params
+#define ILI9XXX_CMD_DISPLAY_OFF 0x28        // Disable display
+#define ILI9XXX_CMD_DISPLAY_ON 0x29         // Enable display
+#define ILI9XXX_SET_COL_ADDR 0x2A           // Set column address
+#define ILI9XXX_SET_PAGE_ADDR 0x2B          // Set page address
+#define ILI9XXX_SET_MEM 0x2C                // Set memory
+#define ILI9XXX_SET_COLOR 0x2D              // Set color
+#define ILI9XXX_GET_MEM 0x2E                // Get memory
+#define ILI9XXX_SET_PARTIAL_AREA 0x30       // Set partial area
+#define ILI9XXX_SET_VSCROLL 0x33            // Set vertical scroll def
+#define ILI9XXX_CMD_TEARING_ON 0x34         // Tearing line enabled
+#define ILI9XXX_CMD_TEARING_OFF 0x35        // Tearing line disabled
+#define ILI9XXX_SET_MEM_ACS_CTL 0x36        // Set mem access ctl
+#define ILI9XXX_SET_VSCROLL_ADDR 0x37       // Set vscroll start addr
+#define ILI9XXX_CMD_IDLE_OFF 0x38           // Exit idle mode
+#define ILI9XXX_CMD_IDLE_ON 0x39            // Enter idle mode
+#define ILI9XXX_SET_PIX_FMT 0x3A            // Set pixel format
+#define ILI9XXX_SET_MEM_CONT 0x3C           // Set memory continue
+#define ILI9XXX_GET_MEM_CONT 0x3E           // Get memory continue
+#define ILI9XXX_SET_TEAR_SCANLINE 0x44      // Set tearing scanline
+#define ILI9XXX_GET_TEAR_SCANLINE 0x45      // Get tearing scanline
+#define ILI9XXX_SET_BRIGHTNESS 0x51         // Set brightness
+#define ILI9XXX_GET_BRIGHTNESS 0x52         // Get brightness
+#define ILI9XXX_SET_DISPLAY_CTL 0x53        // Set display ctl
+#define ILI9XXX_GET_DISPLAY_CTL 0x54        // Get display ctl
+#define ILI9XXX_SET_CABC 0x55               // Set CABC
+#define ILI9XXX_GET_CABC 0x56               // Get CABC
+#define ILI9XXX_SET_CABC_MIN 0x5E           // Set CABC min
+#define ILI9XXX_GET_CABC_MIN 0x5F           // Set CABC max
+#define ILI9XXX_GET_ID1 0xDA                // Get ID1
+#define ILI9XXX_GET_ID2 0xDB                // Get ID2
+#define ILI9XXX_GET_ID3 0xDC                // Get ID3
+#define ILI9XXX_SET_RGB_IF_SIG_CTL 0xB0     // RGB IF signal ctl
+#define ILI9XXX_SET_FRAME_CTL_NORMAL 0xB1   // Set frame ctl (normal)
+#define ILI9XXX_SET_FRAME_CTL_IDLE 0xB2     // Set frame ctl (idle)
+#define ILI9XXX_SET_FRAME_CTL_PARTIAL 0xB3  // Set frame ctl (partial)
+#define ILI9XXX_SET_INVERSION_CTL 0xB4      // Set inversion ctl
+#define ILI9XXX_SET_BLANKING_PORCH_CTL 0xB5 // Set blanking porch ctl
+#define ILI9XXX_SET_FUNCTION_CTL 0xB6       // Set function ctl
+#define ILI9XXX_SET_ENTRY_MODE 0xB7         // Set entry mode
+#define ILI9XXX_SET_LIGHT_CTL_1 0xB8        // Set backlight ctl 1
+#define ILI9XXX_SET_LIGHT_CTL_2 0xB9        // Set backlight ctl 2
+#define ILI9XXX_SET_LIGHT_CTL_3 0xBA        // Set backlight ctl 3
+#define ILI9XXX_SET_LIGHT_CTL_4 0xBB        // Set backlight ctl 4
+#define ILI9XXX_SET_LIGHT_CTL_5 0xBC        // Set backlight ctl 5
+#define ILI9XXX_SET_LIGHT_CTL_7 0xBE        // Set backlight ctl 7
+#define ILI9XXX_SET_LIGHT_CTL_8 0xBF        // Set backlight ctl 8
+#define ILI9XXX_SET_POWER_CTL_1 0xC0        // Set power ctl 1
+#define ILI9XXX_SET_POWER_CTL_2 0xC1        // Set power ctl 2
+#define ILI9XXX_SET_VCOM_CTL_1 0xC5         // Set VCOM ctl 1
+#define ILI9XXX_SET_VCOM_CTL_2 0xC7         // Set VCOM ctl 2
+#define ILI9XXX_POWER_CTL_A 0xCB            // Set power control A
+#define ILI9XXX_POWER_CTL_B 0xCF            // Set power control B
+#define ILI9XXX_DRV_TIMING_CTL_A 0xE8       // Set driver timing control A
+#define ILI9XXX_DRV_TIMING_CTL_B 0xEA       // Set driver timing control B
+#define ILI9XXX_POWER_ON_SEQ_CTL 0xED       // Set Power on sequence control
+#define ILI9XXX_SET_NVMEM 0xD0              // Set NVMEM data
+#define ILI9XXX_GET_NVMEM_KEY 0xD1          // Get NVMEM protect key
+#define ILI9XXX_GET_NVMEM_STATUS 0xD2       // Get NVMEM status
+#define ILI9XXX_GET_ID4 0xD3                // Get ID4
+#define ILI9XXX_SET_PGAMMA 0xE0             // Set positive gamma
+#define ILI9XXX_SET_NGAMMA 0xE1             // Set negative gamma
+#define ILI9XXX_SET_DGAMMA_CTL_1 0xE2       // Set digital gamma ctl 1
+#define ILI9XXX_SET_DGAMMA_CTL_2 0xE3       // Set digital gamma ctl 2
+#define ILI9XXX_ENABLE_3_GAMMA 0xF2         // Enable 3 gamma
+#define ILI9XXX_SET_IF_CTL 0xF6             // Set interface control
+#define ILI9XXX_SET_PUMP_RATIO_CTL 0xF7     // Set pump ratio control
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// MADCTL Flags
+#define ILI9XXX_MADCTL_MY 0b10000000
+#define ILI9XXX_MADCTL_MX 0b01000000
+#define ILI9XXX_MADCTL_MV 0b00100000
+#define ILI9XXX_MADCTL_ML 0b00010000
+#define ILI9XXX_MADCTL_RGB 0b00000000
+#define ILI9XXX_MADCTL_BGR 0b00001000
+#define ILI9XXX_MADCTL_MH 0b00000100