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