First init.

libraries/mcu-renderer/src/mcu-renderer-st7565.c

@@ -0,0 +1,104 @@
+/*
+ * MCU renderer
+ * ST7565 driver
+ *
+ * (C) 2023-2024 Gissio
+ *
+ * License: MIT
+ */
+
+#include "mcu-renderer-st7565.h"
+
+static const uint8_t mr_st7565_init_sequence[] = {
+    MR_SLEEP(1),
+    MR_SET_RESET(true),
+    MR_SLEEP(1),
+    MR_SET_RESET(false),
+    MR_SLEEP(1),
+
+    MR_SEND_COMMAND(MR_ST7565_POWER | MR_ST7565_POWER_VB |
+                    MR_ST7565_POWER_VR | MR_ST7565_POWER_VF),
+    MR_END(),
+};
+
+static const uint8_t mr_st7565_display_on_sequence[] = {
+    // Powersave off (compound command)
+    MR_SEND_COMMAND(MR_ST7565_ALLPIXEL_OFF),
+    MR_SEND_COMMAND(MR_ST7565_DISPLAY_ON),
+    MR_END(),
+};
+
+static const uint8_t mr_st7565_display_off_sequence[] = {
+    // Powersave on (compound command)
+    MR_SEND_COMMAND(MR_ST7565_DISPLAY_OFF),
+    MR_SEND_COMMAND(MR_ST7565_ALLPIXEL_ON),
+    MR_END(),
+};
+
+void mr_st7565_init(mr_t *mr,
+                    int16_t width,
+                    int16_t height,
+                    mr_display_rotation_t rotation,
+                    uint8_t *framebuffer,
+                    mr_sleep_callback_t sleep_callback,
+                    mr_set_reset_callback_t set_reset_callback,
+                    mr_set_command_callback_t set_command_callback,
+                    mr_send_callback_t send_callback)
+{
+    mr_init(mr);
+
+    mr->display_width = width;
+    mr->display_height = height;
+    mr->display_rotation = rotation;
+
+    mr->buffer = framebuffer;
+
+    mr->draw_rectangle_callback = mr_draw_rectangle_framebuffer_monochrome_vertical;
+    mr->draw_string_callback = mr_draw_string_framebuffer_monochrome_vertical;
+#if defined(MCURENDERER_IMAGE_SUPPORT)
+    mr->draw_image_callback = mr_draw_image_framebuffer_monochrome_vertical;
+#endif
+    mr->sleep_callback = sleep_callback;
+    mr->set_reset_callback = set_reset_callback;
+    mr->set_command_callback = set_command_callback;
+    mr->send_callback = send_callback;
+
+    mr_send_sequence(mr, mr_st7565_init_sequence);
+}
+
+void mr_st7565_set_display(mr_t *mr,
+                           bool value)
+{
+    mr_send_sequence(mr,
+                     value
+                         ? mr_st7565_display_on_sequence
+                         : mr_st7565_display_off_sequence);
+}
+
+void mr_st7565_refresh_display(mr_t *mr)
+{
+    for (int16_t pageIndex = 0;
+         pageIndex < (mr->display_height / 8);
+         pageIndex++)
+    {
+        // Send page address
+
+        mr_send_command(mr, MR_ST7565_PAGE_ADDRESS | pageIndex);
+
+        // Send column address
+
+        mr_send_command(mr, MR_ST7565_COLUMN_LSB | 0x00);
+        mr_send_command(mr, MR_ST7565_COLUMN_MSB | 0x00);
+
+        // Send data
+
+        mr_set_command(mr, false);
+        uint8_t *buffer = (uint8_t *)mr->buffer +
+                          mr->display_width * pageIndex;
+
+        for (int16_t i = 0;
+             i < mr->display_width;
+             i++)
+            mr_send(mr, buffer[i]);
+    }
+}