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authorNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>2008-11-21 08:34:25 +0300
committerPaul Mundt <lethal@linux-sh.org>2008-12-22 12:42:54 +0300
commit679dc3c92ca7894c3df70ee3333ff9878e7d90b9 (patch)
tree5537cbc3c53cbfb40f0975bdebec6b9f919b9995 /drivers/video/sh7760fb.c
parentf617682e9cabd5616dc2fe53c67762790eeb14d3 (diff)
downloadlinux-679dc3c92ca7894c3df70ee3333ff9878e7d90b9.tar.xz
sh: sh7760fb: Fix color pallette setting
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>
Diffstat (limited to 'drivers/video/sh7760fb.c')
-rw-r--r--drivers/video/sh7760fb.c86
1 files changed, 19 insertions, 67 deletions
diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c
index 8d0212da4514..653bdfee3057 100644
--- a/drivers/video/sh7760fb.c
+++ b/drivers/video/sh7760fb.c
@@ -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,