79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
|
|
* arch/arm/mach-netx/fb.c
|
|
*
|
|
* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/init.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/amba/bus.h>
|
|
#include <linux/amba/clcd.h>
|
|
#include <linux/err.h>
|
|
#include <linux/gfp.h>
|
|
|
|
#include <asm/irq.h>
|
|
|
|
#include <mach/netx-regs.h>
|
|
#include <mach/hardware.h>
|
|
|
|
static struct clcd_panel *netx_panel;
|
|
|
|
void netx_clcd_enable(struct clcd_fb *fb)
|
|
{
|
|
}
|
|
|
|
int netx_clcd_setup(struct clcd_fb *fb)
|
|
{
|
|
dma_addr_t dma;
|
|
|
|
fb->panel = netx_panel;
|
|
|
|
fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024,
|
|
&dma, GFP_KERNEL);
|
|
if (!fb->fb.screen_base) {
|
|
printk(KERN_ERR "CLCD: unable to map framebuffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fb->fb.fix.smem_start = dma;
|
|
fb->fb.fix.smem_len = 1024*1024;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
|
|
{
|
|
return dma_mmap_writecombine(&fb->dev->dev, vma,
|
|
fb->fb.screen_base,
|
|
fb->fb.fix.smem_start,
|
|
fb->fb.fix.smem_len);
|
|
}
|
|
|
|
void netx_clcd_remove(struct clcd_fb *fb)
|
|
{
|
|
dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
|
|
fb->fb.screen_base, fb->fb.fix.smem_start);
|
|
}
|
|
|
|
static AMBA_AHB_DEVICE(fb, "fb", 0, 0x00104000, { NETX_IRQ_LCD }, NULL);
|
|
|
|
int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
|
|
{
|
|
netx_panel = panel;
|
|
fb_device.dev.platform_data = board;
|
|
return amba_device_register(&fb_device, &iomem_resource);
|
|
}
|