![Linus Torvalds](/assets/img/avatar_default.png)
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
500 lines
11 KiB
C
500 lines
11 KiB
C
/*
|
|
* linux/drivers/video/hitfb.c -- Hitachi LCD frame buffer device
|
|
*
|
|
* (C) 1999 Mihai Spatar
|
|
* (C) 2000 YAEGASHI Takeshi
|
|
* (C) 2003, 2004 Paul Mundt
|
|
* (C) 2003, 2004, 2006 Andriy Skulysh
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file COPYING in the main directory of this archive for
|
|
* more details.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/string.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/fb.h>
|
|
|
|
#include <asm/machvec.h>
|
|
#include <linux/uaccess.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/io.h>
|
|
#include <asm/hd64461.h>
|
|
#include <cpu/dac.h>
|
|
|
|
#define WIDTH 640
|
|
|
|
static struct fb_var_screeninfo hitfb_var = {
|
|
.activate = FB_ACTIVATE_NOW,
|
|
.height = -1,
|
|
.width = -1,
|
|
.vmode = FB_VMODE_NONINTERLACED,
|
|
};
|
|
|
|
static struct fb_fix_screeninfo hitfb_fix = {
|
|
.id = "Hitachi HD64461",
|
|
.type = FB_TYPE_PACKED_PIXELS,
|
|
.accel = FB_ACCEL_NONE,
|
|
};
|
|
|
|
static inline void hitfb_accel_wait(void)
|
|
{
|
|
while (fb_readw(HD64461_GRCFGR) & HD64461_GRCFGR_ACCSTATUS) ;
|
|
}
|
|
|
|
static inline void hitfb_accel_start(int truecolor)
|
|
{
|
|
if (truecolor) {
|
|
fb_writew(6, HD64461_GRCFGR);
|
|
} else {
|
|
fb_writew(7, HD64461_GRCFGR);
|
|
}
|
|
}
|
|
|
|
static inline void hitfb_accel_set_dest(int truecolor, u16 dx, u16 dy,
|
|
u16 width, u16 height)
|
|
{
|
|
u32 saddr = WIDTH * dy + dx;
|
|
if (truecolor)
|
|
saddr <<= 1;
|
|
|
|
fb_writew(width-1, HD64461_BBTDWR);
|
|
fb_writew(height-1, HD64461_BBTDHR);
|
|
|
|
fb_writew(saddr & 0xffff, HD64461_BBTDSARL);
|
|
fb_writew(saddr >> 16, HD64461_BBTDSARH);
|
|
|
|
}
|
|
|
|
static inline void hitfb_accel_bitblt(int truecolor, u16 sx, u16 sy, u16 dx,
|
|
u16 dy, u16 width, u16 height, u16 rop,
|
|
u32 mask_addr)
|
|
{
|
|
u32 saddr, daddr;
|
|
u32 maddr = 0;
|
|
|
|
height--;
|
|
width--;
|
|
fb_writew(rop, HD64461_BBTROPR);
|
|
if ((sy < dy) || ((sy == dy) && (sx <= dx))) {
|
|
saddr = WIDTH * (sy + height) + sx + width;
|
|
daddr = WIDTH * (dy + height) + dx + width;
|
|
if (mask_addr) {
|
|
if (truecolor)
|
|
maddr = ((width >> 3) + 1) * (height + 1) - 1;
|
|
else
|
|
maddr =
|
|
(((width >> 4) + 1) * (height + 1) - 1) * 2;
|
|
|
|
fb_writew((1 << 5) | 1, HD64461_BBTMDR);
|
|
} else
|
|
fb_writew(1, HD64461_BBTMDR);
|
|
} else {
|
|
saddr = WIDTH * sy + sx;
|
|
daddr = WIDTH * dy + dx;
|
|
if (mask_addr) {
|
|
fb_writew((1 << 5), HD64461_BBTMDR);
|
|
} else {
|
|
fb_writew(0, HD64461_BBTMDR);
|
|
}
|
|
}
|
|
if (truecolor) {
|
|
saddr <<= 1;
|
|
daddr <<= 1;
|
|
}
|
|
fb_writew(width, HD64461_BBTDWR);
|
|
fb_writew(height, HD64461_BBTDHR);
|
|
fb_writew(saddr & 0xffff, HD64461_BBTSSARL);
|
|
fb_writew(saddr >> 16, HD64461_BBTSSARH);
|
|
fb_writew(daddr & 0xffff, HD64461_BBTDSARL);
|
|
fb_writew(daddr >> 16, HD64461_BBTDSARH);
|
|
if (mask_addr) {
|
|
maddr += mask_addr;
|
|
fb_writew(maddr & 0xffff, HD64461_BBTMARL);
|
|
fb_writew(maddr >> 16, HD64461_BBTMARH);
|
|
}
|
|
hitfb_accel_start(truecolor);
|
|
}
|
|
|
|
static void hitfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
|
|
{
|
|
if (rect->rop != ROP_COPY)
|
|
cfb_fillrect(p, rect);
|
|
else {
|
|
hitfb_accel_wait();
|
|
fb_writew(0x00f0, HD64461_BBTROPR);
|
|
fb_writew(16, HD64461_BBTMDR);
|
|
|
|
if (p->var.bits_per_pixel == 16) {
|
|
fb_writew(((u32 *) (p->pseudo_palette))[rect->color],
|
|
HD64461_GRSCR);
|
|
hitfb_accel_set_dest(1, rect->dx, rect->dy, rect->width,
|
|
rect->height);
|
|
hitfb_accel_start(1);
|
|
} else {
|
|
fb_writew(rect->color, HD64461_GRSCR);
|
|
hitfb_accel_set_dest(0, rect->dx, rect->dy, rect->width,
|
|
rect->height);
|
|
hitfb_accel_start(0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void hitfb_copyarea(struct fb_info *p, const struct fb_copyarea *area)
|
|
{
|
|
hitfb_accel_wait();
|
|
hitfb_accel_bitblt(p->var.bits_per_pixel == 16, area->sx, area->sy,
|
|
area->dx, area->dy, area->width, area->height,
|
|
0x00cc, 0);
|
|
}
|
|
|
|
static int hitfb_pan_display(struct fb_var_screeninfo *var,
|
|
struct fb_info *info)
|
|
{
|
|
int xoffset = var->xoffset;
|
|
int yoffset = var->yoffset;
|
|
|
|
if (xoffset != 0)
|
|
return -EINVAL;
|
|
|
|
fb_writew((yoffset*info->fix.line_length)>>10, HD64461_LCDCBAR);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int hitfb_blank(int blank_mode, struct fb_info *info)
|
|
{
|
|
unsigned short v;
|
|
|
|
if (blank_mode) {
|
|
v = fb_readw(HD64461_LDR1);
|
|
v &= ~HD64461_LDR1_DON;
|
|
fb_writew(v, HD64461_LDR1);
|
|
|
|
v = fb_readw(HD64461_LCDCCR);
|
|
v |= HD64461_LCDCCR_MOFF;
|
|
fb_writew(v, HD64461_LCDCCR);
|
|
|
|
v = fb_readw(HD64461_STBCR);
|
|
v |= HD64461_STBCR_SLCDST;
|
|
fb_writew(v, HD64461_STBCR);
|
|
} else {
|
|
v = fb_readw(HD64461_STBCR);
|
|
v &= ~HD64461_STBCR_SLCDST;
|
|
fb_writew(v, HD64461_STBCR);
|
|
|
|
v = fb_readw(HD64461_LCDCCR);
|
|
v &= ~(HD64461_LCDCCR_MOFF | HD64461_LCDCCR_STREQ);
|
|
fb_writew(v, HD64461_LCDCCR);
|
|
|
|
do {
|
|
v = fb_readw(HD64461_LCDCCR);
|
|
} while(v&HD64461_LCDCCR_STBACK);
|
|
|
|
v = fb_readw(HD64461_LDR1);
|
|
v |= HD64461_LDR1_DON;
|
|
fb_writew(v, HD64461_LDR1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hitfb_setcolreg(unsigned regno, unsigned red, unsigned green,
|
|
unsigned blue, unsigned transp, struct fb_info *info)
|
|
{
|
|
if (regno >= 256)
|
|
return 1;
|
|
|
|
switch (info->var.bits_per_pixel) {
|
|
case 8:
|
|
fb_writew(regno << 8, HD64461_CPTWAR);
|
|
fb_writew(red >> 10, HD64461_CPTWDR);
|
|
fb_writew(green >> 10, HD64461_CPTWDR);
|
|
fb_writew(blue >> 10, HD64461_CPTWDR);
|
|
break;
|
|
case 16:
|
|
if (regno >= 16)
|
|
return 1;
|
|
((u32 *) (info->pseudo_palette))[regno] =
|
|
((red & 0xf800)) |
|
|
((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hitfb_sync(struct fb_info *info)
|
|
{
|
|
hitfb_accel_wait();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hitfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
|
|
{
|
|
int maxy;
|
|
|
|
var->xres = info->var.xres;
|
|
var->xres_virtual = info->var.xres;
|
|
var->yres = info->var.yres;
|
|
|
|
if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16))
|
|
var->bits_per_pixel = info->var.bits_per_pixel;
|
|
|
|
if (var->yres_virtual < var->yres)
|
|
var->yres_virtual = var->yres;
|
|
|
|
maxy = info->fix.smem_len / var->xres;
|
|
|
|
if (var->bits_per_pixel == 16)
|
|
maxy /= 2;
|
|
|
|
if (var->yres_virtual > maxy)
|
|
var->yres_virtual = maxy;
|
|
|
|
var->xoffset = 0;
|
|
var->yoffset = 0;
|
|
|
|
switch (var->bits_per_pixel) {
|
|
case 8:
|
|
var->red.offset = 0;
|
|
var->red.length = 8;
|
|
var->green.offset = 0;
|
|
var->green.length = 8;
|
|
var->blue.offset = 0;
|
|
var->blue.length = 8;
|
|
var->transp.offset = 0;
|
|
var->transp.length = 0;
|
|
break;
|
|
case 16: /* RGB 565 */
|
|
var->red.offset = 11;
|
|
var->red.length = 5;
|
|
var->green.offset = 5;
|
|
var->green.length = 6;
|
|
var->blue.offset = 0;
|
|
var->blue.length = 5;
|
|
var->transp.offset = 0;
|
|
var->transp.length = 0;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hitfb_set_par(struct fb_info *info)
|
|
{
|
|
unsigned short ldr3;
|
|
|
|
switch (info->var.bits_per_pixel) {
|
|
case 8:
|
|
info->fix.line_length = info->var.xres;
|
|
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
|
|
info->fix.ypanstep = 16;
|
|
break;
|
|
case 16:
|
|
info->fix.line_length = info->var.xres*2;
|
|
info->fix.visual = FB_VISUAL_TRUECOLOR;
|
|
info->fix.ypanstep = 8;
|
|
break;
|
|
}
|
|
|
|
fb_writew(info->fix.line_length, HD64461_LCDCLOR);
|
|
ldr3 = fb_readw(HD64461_LDR3);
|
|
ldr3 &= ~15;
|
|
ldr3 |= (info->var.bits_per_pixel == 8) ? 4 : 8;
|
|
fb_writew(ldr3, HD64461_LDR3);
|
|
return 0;
|
|
}
|
|
|
|
static struct fb_ops hitfb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_check_var = hitfb_check_var,
|
|
.fb_set_par = hitfb_set_par,
|
|
.fb_setcolreg = hitfb_setcolreg,
|
|
.fb_blank = hitfb_blank,
|
|
.fb_sync = hitfb_sync,
|
|
.fb_pan_display = hitfb_pan_display,
|
|
.fb_fillrect = hitfb_fillrect,
|
|
.fb_copyarea = hitfb_copyarea,
|
|
.fb_imageblit = cfb_imageblit,
|
|
};
|
|
|
|
static int hitfb_probe(struct platform_device *dev)
|
|
{
|
|
unsigned short lcdclor, ldr3, ldvndr;
|
|
struct fb_info *info;
|
|
int ret;
|
|
|
|
if (fb_get_options("hitfb", NULL))
|
|
return -ENODEV;
|
|
|
|
hitfb_fix.mmio_start = HD64461_IO_OFFSET(0x1000);
|
|
hitfb_fix.mmio_len = 0x1000;
|
|
hitfb_fix.smem_start = HD64461_IO_OFFSET(0x02000000);
|
|
hitfb_fix.smem_len = 512 * 1024;
|
|
|
|
lcdclor = fb_readw(HD64461_LCDCLOR);
|
|
ldvndr = fb_readw(HD64461_LDVNDR);
|
|
ldr3 = fb_readw(HD64461_LDR3);
|
|
|
|
switch (ldr3 & 15) {
|
|
default:
|
|
case 4:
|
|
hitfb_var.bits_per_pixel = 8;
|
|
hitfb_var.xres = lcdclor;
|
|
break;
|
|
case 8:
|
|
hitfb_var.bits_per_pixel = 16;
|
|
hitfb_var.xres = lcdclor / 2;
|
|
break;
|
|
}
|
|
hitfb_fix.line_length = lcdclor;
|
|
hitfb_fix.visual = (hitfb_var.bits_per_pixel == 8) ?
|
|
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
|
|
hitfb_var.yres = ldvndr + 1;
|
|
hitfb_var.xres_virtual = hitfb_var.xres;
|
|
hitfb_var.yres_virtual = hitfb_fix.smem_len / lcdclor;
|
|
switch (hitfb_var.bits_per_pixel) {
|
|
case 8:
|
|
hitfb_var.red.offset = 0;
|
|
hitfb_var.red.length = 8;
|
|
hitfb_var.green.offset = 0;
|
|
hitfb_var.green.length = 8;
|
|
hitfb_var.blue.offset = 0;
|
|
hitfb_var.blue.length = 8;
|
|
hitfb_var.transp.offset = 0;
|
|
hitfb_var.transp.length = 0;
|
|
break;
|
|
case 16: /* RGB 565 */
|
|
hitfb_var.red.offset = 11;
|
|
hitfb_var.red.length = 5;
|
|
hitfb_var.green.offset = 5;
|
|
hitfb_var.green.length = 6;
|
|
hitfb_var.blue.offset = 0;
|
|
hitfb_var.blue.length = 5;
|
|
hitfb_var.transp.offset = 0;
|
|
hitfb_var.transp.length = 0;
|
|
break;
|
|
}
|
|
|
|
info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
|
|
if (unlikely(!info))
|
|
return -ENOMEM;
|
|
|
|
info->fbops = &hitfb_ops;
|
|
info->var = hitfb_var;
|
|
info->fix = hitfb_fix;
|
|
info->pseudo_palette = info->par;
|
|
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
|
|
FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
|
|
|
|
info->screen_base = (void *)hitfb_fix.smem_start;
|
|
|
|
ret = fb_alloc_cmap(&info->cmap, 256, 0);
|
|
if (unlikely(ret < 0))
|
|
goto err_fb;
|
|
|
|
ret = register_framebuffer(info);
|
|
if (unlikely(ret < 0))
|
|
goto err;
|
|
|
|
platform_set_drvdata(dev, info);
|
|
|
|
fb_info(info, "%s frame buffer device\n", info->fix.id);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
fb_dealloc_cmap(&info->cmap);
|
|
err_fb:
|
|
framebuffer_release(info);
|
|
return ret;
|
|
}
|
|
|
|
static int hitfb_remove(struct platform_device *dev)
|
|
{
|
|
struct fb_info *info = platform_get_drvdata(dev);
|
|
|
|
unregister_framebuffer(info);
|
|
fb_dealloc_cmap(&info->cmap);
|
|
framebuffer_release(info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hitfb_suspend(struct device *dev)
|
|
{
|
|
u16 v;
|
|
|
|
hitfb_blank(1,0);
|
|
v = fb_readw(HD64461_STBCR);
|
|
v |= HD64461_STBCR_SLCKE_IST;
|
|
fb_writew(v, HD64461_STBCR);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hitfb_resume(struct device *dev)
|
|
{
|
|
u16 v;
|
|
|
|
v = fb_readw(HD64461_STBCR);
|
|
v &= ~HD64461_STBCR_SLCKE_OST;
|
|
msleep(100);
|
|
v = fb_readw(HD64461_STBCR);
|
|
v &= ~HD64461_STBCR_SLCKE_IST;
|
|
fb_writew(v, HD64461_STBCR);
|
|
hitfb_blank(0,0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops hitfb_dev_pm_ops = {
|
|
.suspend = hitfb_suspend,
|
|
.resume = hitfb_resume,
|
|
};
|
|
|
|
static struct platform_driver hitfb_driver = {
|
|
.probe = hitfb_probe,
|
|
.remove = hitfb_remove,
|
|
.driver = {
|
|
.name = "hitfb",
|
|
.pm = &hitfb_dev_pm_ops,
|
|
},
|
|
};
|
|
|
|
static struct platform_device hitfb_device = {
|
|
.name = "hitfb",
|
|
.id = -1,
|
|
};
|
|
|
|
static int __init hitfb_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = platform_driver_register(&hitfb_driver);
|
|
if (!ret) {
|
|
ret = platform_device_register(&hitfb_device);
|
|
if (ret)
|
|
platform_driver_unregister(&hitfb_driver);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void __exit hitfb_exit(void)
|
|
{
|
|
platform_device_unregister(&hitfb_device);
|
|
platform_driver_unregister(&hitfb_driver);
|
|
}
|
|
|
|
module_init(hitfb_init);
|
|
module_exit(hitfb_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|