95 lines
3.1 KiB
C
95 lines
3.1 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
|
|
*/
|
|
|
|
/**
|
|
* Note: this implementation makes a number of design choices...
|
|
* 1/ We are using the macro definitions for eCos framebuffer driver. If you want to use the
|
|
* function's instead you could use the g->board variable to store your cyg_fb pointer.
|
|
* 2/ We assume the initialisation succeeds. It is probably a fatal error if it doesn't.
|
|
* 3/ We hard-code in this file the pixel format, whether flushing is required and the FRAMEBUF device.
|
|
* Please adjust them for your hardware.
|
|
*/
|
|
|
|
// Set this to your frame buffer pixel format.
|
|
#ifndef GDISP_LLD_PIXELFORMAT
|
|
#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_RGB565
|
|
#endif
|
|
|
|
// Uncomment this if your frame buffer device requires flushing ("Synch" in eCos speak)
|
|
#define GDISP_HARDWARE_FLUSH GFXON
|
|
|
|
#ifdef GDISP_DRIVER_VMT
|
|
|
|
#include <cyg/io/framebuf.h>
|
|
|
|
// SET THIS HERE!!!
|
|
// This must also match the pixel format above
|
|
#define FRAMEBUF fb0
|
|
|
|
static void board_init(GDisplay *g, fbInfo *fbi) {
|
|
// Initialize the frame buffer device - we assume everything is going to succeed.
|
|
CYG_FB_ON(FRAMEBUF);
|
|
#if (CYG_FB_FLAGS0(FRAMEBUF) & CYG_FB_FLAGS0_MUST_BE_ON)
|
|
CYG_FB_FILL_BLOCK(FRAMEBUF, 0, 0, CYG_FB_WIDTH(FRAMEBUF), CYG_FB_HEIGHT(FRAMEBUF), CYG_FB_MAKE_COLOUR(FRAMEBUF, 0, 0, 0));
|
|
#endif
|
|
|
|
// Set the details of the frame buffer
|
|
#ifdef CYGHWR_IO_FRAMEBUF_FUNCTIONALITY_VIEWPORT
|
|
g->g.Width = CYG_FB_VIEWPORT_WIDTH(FRAMEBUF);
|
|
g->g.Height = CYG_FB_VIEWPORT_HEIGHT(FRAMEBUF);
|
|
#else
|
|
g->g.Width = CYG_FB_WIDTH(FRAMEBUF);
|
|
g->g.Height = CYG_FB_HEIGHT(FRAMEBUF);
|
|
#endif
|
|
g->g.Backlight = 100;
|
|
g->g.Contrast = 50;
|
|
fbi->linelen = CYG_FB_STRIDE(FRAMEBUF); // bytes per row
|
|
fbi->pixels = CYG_FB_BASE(FRAMEBUF); // pointer to the memory frame buffer
|
|
}
|
|
|
|
#if GDISP_HARDWARE_FLUSH
|
|
static void board_flush(GDisplay *g) {
|
|
(void) g;
|
|
|
|
// You might want to replace CYG_FB_UPDATE_NOW with CYG_FB_UPDATE_VERTICAL_RETRACE
|
|
// if you are not using uGFX's auto flush or timer flush mechanisms and frame synchronisation
|
|
// is important for your display.
|
|
CYG_FB_SYNCH(FRAMEBUF, CYG_FB_UPDATE_NOW);
|
|
}
|
|
#endif
|
|
|
|
#if GDISP_NEED_CONTROL
|
|
static void board_backlight(GDisplay *g, uint8_t percent) {
|
|
(void) g;
|
|
#if (CYG_FB_FLAGS0(FRAMEBUF) & CYG_FB_FLAGS0_BACKLIGHT)
|
|
cyg_fb_ioctl_backlight backlight;
|
|
size_t len = sizeof(cyg_fb_ioctl_backlight);
|
|
|
|
if (CYG_FB_IOCTL(FRAMEBUF, CYG_FB_IOCTL_BACKLIGHT_GET, &backlight, &len) || !backlight.fbbl_max)
|
|
return;
|
|
if (backlight.fbbl_max == 1)
|
|
backlight.fbbl_current = percent ? 1 : 0;
|
|
else
|
|
backlight.fbbl_current = (((uint32_t)percent)*backlight.fbbl_max)/100;
|
|
CYG_FB_IOCTL(FRAMEBUF, CYG_FB_IOCTL_BACKLIGHT_SET, &backlight, &len);
|
|
#endif
|
|
}
|
|
|
|
static void board_contrast(GDisplay *g, uint8_t percent) {
|
|
(void) g;
|
|
(void) percent;
|
|
}
|
|
|
|
static void board_power(GDisplay *g, gPowermode pwr) {
|
|
// Not implemented yet.
|
|
(void) g;
|
|
(void) pwr;
|
|
}
|
|
#endif
|
|
|
|
#endif /* GDISP_DRIVER_VMT */
|