2012-09-26 23:59:58 -04:00
|
|
|
/*
|
|
|
|
|
Copyright (C) 2012, Aaron Lindsay <aaron@aclindsay.com>
|
|
|
|
|
|
|
|
|
|
This file is part of Aedrix.
|
|
|
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
(at your option) any later version.
|
|
|
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
GNU General Public License for more details.
|
|
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
|
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
|
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
|
*/
|
|
|
|
|
|
2012-09-07 23:51:04 -04:00
|
|
|
#include <framebuffer.h>
|
|
|
|
|
|
|
|
|
|
typedef unsigned int uint32;
|
|
|
|
|
|
|
|
|
|
#define PL110_CR_EN 0x001
|
|
|
|
|
#define PL110_CR_PWR 0x800
|
|
|
|
|
#define PL110_IOBASE 0xc0000000
|
|
|
|
|
#define PL110_PALBASE (PL110_IOBASE + 0x200)
|
|
|
|
|
#define PL110_FB_BASE 0x200000;
|
|
|
|
|
|
|
|
|
|
struct pl110_control {
|
|
|
|
|
uint32 volatile timing0; //0
|
|
|
|
|
uint32 volatile timing1; //4
|
|
|
|
|
uint32 volatile timing2; //8
|
|
|
|
|
uint32 volatile timing3; //c
|
|
|
|
|
uint32 volatile upbase; //10
|
|
|
|
|
uint32 volatile lpbase; //14
|
|
|
|
|
uint32 volatile intrenable; //18
|
|
|
|
|
uint32 volatile control; //1c
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct fbdev pl110_fb_device;
|
|
|
|
|
|
|
|
|
|
int pl110_init(struct fb *f, unsigned int color_depth) {
|
|
|
|
|
struct pl110_control *plio = (struct pl110_control*)PL110_IOBASE;
|
|
|
|
|
|
|
|
|
|
/* 640x480 pixels */
|
|
|
|
|
plio->timing0 = 0x3f1f3f9c;
|
|
|
|
|
plio->timing1 = 0x080b61df;
|
|
|
|
|
plio->upbase = PL110_FB_BASE;
|
|
|
|
|
|
|
|
|
|
if (color_depth == FB_COLOR_DEPTH_8) {
|
|
|
|
|
plio->control = 0x1827;
|
|
|
|
|
} else if (color_depth == FB_COLOR_DEPTH_16) {
|
|
|
|
|
plio->control = 0x1829;
|
|
|
|
|
} else if (color_depth == FB_COLOR_DEPTH_24) {
|
|
|
|
|
plio->control = 0x182B;
|
|
|
|
|
} else {
|
|
|
|
|
//assume 16 if nothing else fit
|
|
|
|
|
color_depth = 16;
|
|
|
|
|
plio->control = 0x1829;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
f->device = &pl110_fb_device;
|
|
|
|
|
f->device->fbaddr = (void*)PL110_FB_BASE;
|
|
|
|
|
f->width = 640;
|
|
|
|
|
f->device->pixelwidth = 640;
|
|
|
|
|
f->height = 480;
|
|
|
|
|
f->device->pixelheight = 480;
|
|
|
|
|
|
|
|
|
|
f->color_depth = color_depth;
|
|
|
|
|
f->device->color_depth = color_depth;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
