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sh: sh7760fb: Fix color pallette setting

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The setting of the color palette was wrong, fixed it.
And removed fb_setcmap, and added fb_setcolreg function.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Nobuhiro Iwamatsu 2008-11-21 14:34:25 +09:00 committed by Paul Mundt
parent f617682e9c
commit 679dc3c92c
1 changed files with 19 additions and 67 deletions
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86
drivers/video/sh7760fb.c
View file

@ -13,6 +13,8 @@
*
* Thanks to Siegfried Schaefer <s.schaefer at schaefer-edv.de>
* for his original source and testing!
*
* sh7760_setcolreg get from drivers/video/sh_mobile_lcdcfb.c
*/
#include <linux/completion.h>
@ -53,29 +55,6 @@ static irqreturn_t sh7760fb_irq(int irq, void *data)
return IRQ_HANDLED;
}
static void sh7760fb_wait_vsync(struct fb_info *info)
{
struct sh7760fb_par *par = info->par;
if (par->pd->novsync)
return;
iowrite16(ioread16(par->base + LDINTR) & ~VINT_CHECK,
par->base + LDINTR);
if (par->irq < 0) {
/* poll for vert. retrace: status bit is sticky */
while (!(ioread16(par->base + LDINTR) & VINT_CHECK))
cpu_relax();
} else {
/* a "wait_for_irq_event(par->irq)" would be extremely nice */
init_completion(&par->vsync);
enable_irq(par->irq);
wait_for_completion(&par->vsync);
disable_irq_nosync(par->irq);
}
}
/* wait_for_lps - wait until power supply has reached a certain state. */
static int wait_for_lps(struct sh7760fb_par *par, int val)
{
@ -117,55 +96,28 @@ static int sh7760fb_blank(int blank, struct fb_info *info)
return wait_for_lps(par, lps);
}
/* set color registers */
static int sh7760fb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
static int sh7760_setcolreg (u_int regno,
u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info)
{
struct sh7760fb_par *par = info->par;
u32 s = cmap->start;
u32 l = cmap->len;
u16 *r = cmap->red;
u16 *g = cmap->green;
u16 *b = cmap->blue;
u32 col, tmo;
int ret;
u32 *palette = info->pseudo_palette;
ret = 0;
if (regno >= 16)
return -EINVAL;
sh7760fb_wait_vsync(info);
/* only FB_VISUAL_TRUECOLOR supported */
/* request palette access */
iowrite16(LDPALCR_PALEN, par->base + LDPALCR);
red >>= 16 - info->var.red.length;
green >>= 16 - info->var.green.length;
blue >>= 16 - info->var.blue.length;
transp >>= 16 - info->var.transp.length;
/* poll for access grant */
tmo = 100;
while (!(ioread16(par->base + LDPALCR) & LDPALCR_PALS) && (--tmo))
cpu_relax();
palette[regno] = (red << info->var.red.offset) |
(green << info->var.green.offset) |
(blue << info->var.blue.offset) |
(transp << info->var.transp.offset);
if (!tmo) {
ret = 1;
dev_dbg(info->dev, "no palette access!\n");
goto out;
}
while (l && (s < 256)) {
col = ((*r) & 0xff) << 16;
col |= ((*g) & 0xff) << 8;
col |= ((*b) & 0xff);
col &= SH7760FB_PALETTE_MASK;
iowrite32(col, par->base + LDPR(s));
if (s < 16)
((u32 *) (info->pseudo_palette))[s] = s;
s++;
l--;
r++;
g++;
b++;
}
out:
iowrite16(0, par->base + LDPALCR);
return ret;
return 0;
}
static void encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info,
@ -406,7 +358,7 @@ static struct fb_ops sh7760fb_ops = {
.owner = THIS_MODULE,
.fb_blank = sh7760fb_blank,
.fb_check_var = sh7760fb_check_var,
.fb_setcmap = sh7760fb_setcmap,
.fb_setcolreg = sh7760_setcolreg,
.fb_set_par = sh7760fb_set_par,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,