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OMAP: DSS2: OMAPFB: Refactor overlay address calculations

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Split the overlay address calculations into their own function.

Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Ville Syrjälä 2010-03-17 19:59:26 +02:00 committed by Tomi Valkeinen
parent 8cab90fdb4
commit 46d3524a1b
1 changed files with 38 additions and 25 deletions
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63
drivers/video/omap2/omapfb/omapfb-main.c
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@ -822,6 +822,40 @@ static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var,
return offset;
}
static void omapfb_calc_addr(const struct omapfb_info *ofbi,
const struct fb_var_screeninfo *var,
const struct fb_fix_screeninfo *fix,
int rotation, u32 *paddr, void __iomem **vaddr)
{
u32 data_start_p;
void __iomem *data_start_v;
int offset;
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
data_start_v = NULL;
} else {
data_start_p = omapfb_get_region_paddr(ofbi);
data_start_v = omapfb_get_region_vaddr(ofbi);
}
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
offset = calc_rotation_offset_vrfb(var, fix, rotation);
else
offset = calc_rotation_offset_dma(var, fix, rotation);
data_start_p += offset;
data_start_v += offset;
if (offset)
DBG("offset %d, %d = %d\n",
var->xoffset, var->yoffset, offset);
DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v);
*paddr = data_start_p;
*vaddr = data_start_v;
}
/* setup overlay according to the fb */
static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
@ -832,9 +866,8 @@ static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
struct fb_var_screeninfo *var = &fbi->var;
struct fb_fix_screeninfo *fix = &fbi->fix;
enum omap_color_mode mode = 0;
int offset;
u32 data_start_p;
void __iomem *data_start_v;
u32 data_start_p = 0;
void __iomem *data_start_v = NULL;
struct omap_overlay_info info;
int xres, yres;
int screen_width;
@ -861,28 +894,8 @@ static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
yres = var->yres;
}
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
data_start_v = NULL;
} else {
data_start_p = omapfb_get_region_paddr(ofbi);
data_start_v = omapfb_get_region_vaddr(ofbi);
}
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
offset = calc_rotation_offset_vrfb(var, fix, rotation);
else
offset = calc_rotation_offset_dma(var, fix, rotation);
data_start_p += offset;
data_start_v += offset;
if (offset)
DBG("offset %d, %d = %d\n",
var->xoffset, var->yoffset, offset);
DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v);
omapfb_calc_addr(ofbi, var, fix, rotation,
&data_start_p, &data_start_v);
r = fb_mode_to_dss_mode(var, &mode);
if (r) {