From: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxxxxxx>
The LCD controller (EPSON S1D13744) supports
rotation (0, 90, 180 and 270 degrees) on hardware just setting
the bits 0 and 1 of 0x28 register (LCD Panel Configuration Register).
Now it is possible to use this caps only setting the angle degree on var rotate of fb_var_screeninfo using the FBIOPUT_VSCREENINFO ioctl.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxxxxxx>
---
drivers/video/omap/blizzard.c | 34 +++++++++++++++++++++++-
drivers/video/omap/omapfb_main.c | 50 ++++++++++++++++++++++++++----------
include/asm-arm/arch-omap/omapfb.h | 2 +
3 files changed, 71 insertions(+), 15 deletions(-)
diff --git a/drivers/video/omap/blizzard.c b/drivers/video/omap/blizzard.c
index 4d8ad9c..82571ee 100644
--- a/drivers/video/omap/blizzard.c
+++ b/drivers/video/omap/blizzard.c
@@ -44,6 +44,7 @@
#define BLIZZARD_CLK_SRC 0x0e
#define BLIZZARD_MEM_BANK0_ACTIVATE 0x10
#define BLIZZARD_MEM_BANK0_STATUS 0x14
+#define BLIZZARD_PANEL_CONFIGURATION 0x28
#define BLIZZARD_HDISP 0x2a
#define BLIZZARD_HNDP 0x2c
#define BLIZZARD_VDISP0 0x2e
@@ -908,6 +909,35 @@ static int blizzard_set_scale(int plane, int orig_w, int orig_h,
return 0;
}
+static int blizzard_set_rotate(int angle)
+{
+ u32 l;
+
+ l = blizzard_read_reg(BLIZZARD_PANEL_CONFIGURATION);
+ l &= ~0x03;
+
+ switch (angle) {
+ case 0:
+ l = l | 0x00;
+ break;
+ case 90:
+ l = l | 0x03;
+ break;
+ case 180:
+ l = l | 0x02;
+ break;
+ case 270:
+ l = l | 0x01;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ blizzard_write_reg(BLIZZARD_PANEL_CONFIGURATION, l);
+
+ return 0;
+}
+
static int blizzard_enable_plane(int plane, int enable)
{
if (enable)
@@ -1285,7 +1315,8 @@ static void blizzard_get_caps(int plane, struct omapfb_caps *caps)
caps->ctrl |= OMAPFB_CAPS_MANUAL_UPDATE |
OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE |
OMAPFB_CAPS_WINDOW_SCALE |
- OMAPFB_CAPS_WINDOW_OVERLAY;
+ OMAPFB_CAPS_WINDOW_OVERLAY |
+ OMAPFB_CAPS_WINDOW_ROTATE;
if (blizzard.te_connected)
caps->ctrl |= OMAPFB_CAPS_TEARSYNC;
caps->wnd_color |= (1 << OMAPFB_COLOR_RGB565) |
@@ -1560,6 +1591,7 @@ struct lcd_ctrl blizzard_ctrl = {
.setup_plane = blizzard_setup_plane,
.set_scale = blizzard_set_scale,
.enable_plane = blizzard_enable_plane,
+ .set_rotate = blizzard_set_rotate,
.update_window = blizzard_update_window_async,
.sync = blizzard_sync,
.suspend = blizzard_suspend,
diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
index 14d0f7a..f66b81a 100644
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -64,6 +64,7 @@ static struct caps_table_struct ctrl_caps[] = {
{ OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
{ OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
{ OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
+ { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" },
{ OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
};
@@ -214,6 +215,13 @@ static int ctrl_change_mode(struct fb_info *fbi)
offset, var->xres_virtual,
plane->info.pos_x, plane->info.pos_y,
var->xres, var->yres, plane->color_mode);
+ if (r < 0)
+ return r;
+
+ if (fbdev->ctrl->set_rotate != NULL)
+ if((r = fbdev->ctrl->set_rotate(var->rotate)) < 0)
+ return r;
+
if (fbdev->ctrl->set_scale != NULL)
r = fbdev->ctrl->set_scale(plane->idx,
var->xres, var->yres,
@@ -597,7 +605,7 @@ static void omapfb_rotate(struct fb_info *fbi, int rotate)
struct omapfb_device *fbdev = plane->fbdev;
omapfb_rqueue_lock(fbdev);
- if (cpu_is_omap15xx() && rotate != fbi->var.rotate) {
+ if (rotate != fbi->var.rotate) {
struct fb_var_screeninfo *new_var = &fbdev->new_var;
memcpy(new_var, &fbi->var, sizeof(*new_var));
@@ -704,28 +712,42 @@ int omapfb_update_window_async(struct fb_info *fbi,
void (*callback)(void *),
void *callback_data)
{
+ int xres, yres;
struct omapfb_plane_struct *plane = fbi->par;
struct omapfb_device *fbdev = plane->fbdev;
- struct fb_var_screeninfo *var;
+ struct fb_var_screeninfo *var = &fbi->var;
+
+ switch (var->rotate) {
+ case 0:
+ case 180:
+ xres = fbdev->panel->x_res;
+ yres = fbdev->panel->y_res;
+ break;
+ case 90:
+ case 270:
+ xres = fbdev->panel->y_res;
+ yres = fbdev->panel->x_res;
+ break;
+ default:
+ return -EINVAL;
+ }
- var = &fbi->var;
- if (win->x >= var->xres || win->y >= var->yres ||
- win->out_x > var->xres || win->out_y >= var->yres)
+ if (win->x >= xres || win->y >= yres ||
+ win->out_x > xres || win->out_y > yres)
return -EINVAL;
if (!fbdev->ctrl->update_window ||
fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
return -ENODEV;
- if (win->x + win->width >= var->xres)
- win->width = var->xres - win->x;
- if (win->y + win->height >= var->yres)
- win->height = var->yres - win->y;
- /* The out sizes should be cropped to the LCD size */
- if (win->out_x + win->out_width > fbdev->panel->x_res)
- win->out_width = fbdev->panel->x_res - win->out_x;
- if (win->out_y + win->out_height > fbdev->panel->y_res)
- win->out_height = fbdev->panel->y_res - win->out_y;
+ if (win->x + win->width > xres)
+ win->width = xres - win->x;
+ if (win->y + win->height > yres)
+ win->height = yres - win->y;
+ if (win->out_x + win->out_width > xres)
+ win->out_width = xres - win->out_x;
+ if (win->out_y + win->out_height > yres)
+ win->out_height = yres - win->out_y;
if (!win->width || !win->height || !win->out_width || !win->out_height)
return 0;
diff --git a/include/asm-arm/arch-omap/omapfb.h b/include/asm-arm/arch-omap/omapfb.h
index 46d7a4f..55132ad 100644
--- a/include/asm-arm/arch-omap/omapfb.h
+++ b/include/asm-arm/arch-omap/omapfb.h
@@ -62,6 +62,7 @@
#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000
#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000
#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000
+#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000
#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000
/* Values from DSP must map to lower 16-bits */
@@ -305,6 +306,7 @@ struct lcd_ctrl {
int screen_width,
int pos_x, int pos_y, int width,
int height, int color_mode);
+ int (*set_rotate) (int angle);
int (*setup_mem) (int plane, size_t size,
int mem_type, unsigned long *paddr);
int (*mmap) (struct fb_info *info,
--
1.5.2.5
-
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