90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
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/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.org/license.html
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*/
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// Set this to your frame buffer pixel format and size. You can also override these in your makefile.
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#ifndef GDISP_LLD_PIXELFORMAT
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#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_RGB565
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#endif
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#ifndef GDISP_SCREEN_WIDTH
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#define GDISP_SCREEN_WIDTH 800
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#endif
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#ifndef GDISP_SCREEN_HEIGHT
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#define GDISP_SCREEN_HEIGHT 600
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#endif
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#ifdef GDISP_DRIVER_VMT
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#if GDISP_SCREEN_WIDTH > 4096 || GDISP_SCREEN_HEIGHT > 4096
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#error "Raspberry Pi Framebuffer: Screen size is defined too large. Max is 4096x4096"
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#endif
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#include "rpi_mailbox.h"
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typedef struct FrameBufferDescription {
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uint32_t width;
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uint32_t height;
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uint32_t vWidth;
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uint32_t vHeight;
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uint32_t pitch;
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uint32_t bitDepth;
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uint32_t x;
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uint32_t y;
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void * pointer;
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uint32_t size;
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} FrameBufferDescription;
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static FrameBufferDescription FrameBufferInfo __attribute__((aligned (16))) = { 1024, 768, 1024, 768, 0, 24, 0, 0, 0, 0 };
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static void board_init(GDisplay *g, fbInfo *fbi) {
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// Initialize the Raspberry Pi frame buffer
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FrameBufferInfo.width = GDISP_SCREEN_WIDTH;
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FrameBufferInfo.height = GDISP_SCREEN_HEIGHT;
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FrameBufferInfo.vWidth = GDISP_SCREEN_WIDTH;
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FrameBufferInfo.vHeight = GDISP_SCREEN_HEIGHT;
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FrameBufferInfo.bitDepth = LLDCOLOR_BITS;
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rpi_writemailbox(1, 0x40000000 + (uint32_t) &FrameBufferInfo);
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if (rpi_readmailbox(1) != 0)
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gfxHalt("Could not set display parameters")
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// Set the details of the frame buffer
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g->g.Width = GDISP_SCREEN_WIDTH;
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g->g.Height = GDISP_SCREEN_HEIGHT;
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g->g.Backlight = 100;
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g->g.Contrast = 50;
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fbi->linelen = g->g.Width * sizeof(LLDCOLOR_TYPE); // bytes per row
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fbi->pixels = FrameBufferInfo.pointer; // pointer to the memory frame buffer
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}
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#if GDISP_HARDWARE_FLUSH
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static void board_flush(GDisplay *g) {
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(void) g;
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}
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#endif
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#if GDISP_NEED_CONTROL
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static void board_backlight(GDisplay *g, uint8_t percent) {
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(void) g;
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(void) percent;
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}
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static void board_contrast(GDisplay *g, uint8_t percent) {
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(void) g;
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(void) percent;
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}
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static void board_power(GDisplay *g, powermode_t pwr) {
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(void) g;
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(void) pwr;
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}
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#endif
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#endif /* GDISP_DRIVER_VMT */
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