Add display init to Hacktablet firmware

Author: RetiredWizard

ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8_hacktablet/board.c

@@ -26,14 +26,83 @@
 
 #include "supervisor/board.h"
 #include "mpconfigboard.h"
+#include "shared-bindings/board/__init__.h"
+#include "shared-bindings/dotclockframebuffer/DotClockFramebuffer.h"
+#include "shared-bindings/dotclockframebuffer/__init__.h"
+#include "shared-bindings/framebufferio/FramebufferDisplay.h"
 #include "shared-bindings/microcontroller/Pin.h"
+#include "shared-module/displayio/__init__.h"
+
+static const mcu_pin_obj_t *blue_pins[] = {
+    &pin_GPIO3,
+    &pin_GPIO4,
+    &pin_GPIO5,
+    &pin_GPIO6,
+    &pin_GPIO7
+};
+static const mcu_pin_obj_t *green_pins[] = {
+    &pin_GPIO8,
+    &pin_GPIO9,
+    &pin_GPIO10,
+    &pin_GPIO11,
+    &pin_GPIO12,
+    &pin_GPIO13
+};
+static const mcu_pin_obj_t *red_pins[] = {
+    &pin_GPIO14,
+    &pin_GPIO15,
+    &pin_GPIO16,
+    &pin_GPIO17,
+    &pin_GPIO18
+};
+
+static void display_init(void) {
+
+    // Turn on backlight
+    // gpio_set_direction(2, GPIO_MODE_DEF_OUTPUT);
+    // gpio_set_level(2, true);
+    common_hal_never_reset_pin(&pin_GPIO39);
+
+    dotclockframebuffer_framebuffer_obj_t *framebuffer = &allocate_display_bus_or_raise()->dotclock;
+    framebuffer->base.type = &dotclockframebuffer_framebuffer_type;
+
+    common_hal_dotclockframebuffer_framebuffer_construct(
+        framebuffer,
+        &pin_GPIO45,    // de
+        &pin_GPIO48,    // vsync
+        &pin_GPIO47,    // hsync
+        &pin_GPIO21,    // pclk
+        red_pins, MP_ARRAY_SIZE(red_pins),
+        green_pins, MP_ARRAY_SIZE(green_pins),
+        blue_pins, MP_ARRAY_SIZE(blue_pins),
+        6500000,        // Frequency
+        800,            // width
+        480,            // height
+        30, 16, 210, false, // horiz: pulse, back porch, front porch, idle low
+        13, 10, 22, false,  // vert: pulse, back porch, front porch, idle low
+        false,          // DE idle high
+        false,          // pclk active high
+        false,          // pclk idle high
+        0               // overscan left
+        );
+
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display_or_raise()->framebuffer_display;
+    display->base.type = &framebufferio_framebufferdisplay_type;
+    common_hal_framebufferio_framebufferdisplay_construct(
+        display,
+        framebuffer,
+        0,    // rotation
+        true  // auto-refresh
+        );
+}
 
 void board_init(void) {
     // Debug UART
     #ifdef DEBUG
     common_hal_never_reset_pin(&pin_GPIO43);
     common_hal_never_reset_pin(&pin_GPIO44);
     #endif
+    display_init();
 }
 
 // Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.

ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8_hacktablet/pins.c

@@ -1,5 +1,6 @@
 #include "py/objtuple.h"
 #include "shared-bindings/board/__init__.h"
+#include "shared-module/displayio/__init__.h"
 
 STATIC const mp_rom_obj_tuple_t tft_r_pins = {
     {&mp_type_tuple},
@@ -120,5 +121,6 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
     { MP_ROM_QSTR(MP_QSTR_STEMMA_I2C), MP_ROM_PTR(&board_i2c_obj) },
     { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
+    { MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display)},
 };
 MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);