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[Linux-fbdev-devel] [REVIEW PATCH 6/9] DSS: OMAPFB: fb driver for new display subsystem
|
From: Tomi V. <tom...@no...> - 2008-11-04 16:10:42
|
Signed-off-by: Tomi Valkeinen <tom...@no...>
---
arch/arm/plat-omap/fb.c | 9
arch/arm/plat-omap/include/mach/omapfb.h | 7
drivers/video/Kconfig | 1
drivers/video/Makefile | 1
drivers/video/omap/Kconfig | 5
drivers/video/omap2/Kconfig | 29 +
drivers/video/omap2/Makefile | 2
drivers/video/omap2/omapfb-ioctl.c | 428 ++++++++++
drivers/video/omap2/omapfb-main.c | 1247 ++++++++++++++++++++++++++++++
drivers/video/omap2/omapfb-sysfs.c | 833 ++++++++++++++++++++
drivers/video/omap2/omapfb.h | 104 +++
11 files changed, 2663 insertions(+), 3 deletions(-)
create mode 100644 drivers/video/omap2/Kconfig
create mode 100644 drivers/video/omap2/Makefile
create mode 100644 drivers/video/omap2/omapfb-ioctl.c
create mode 100644 drivers/video/omap2/omapfb-main.c
create mode 100644 drivers/video/omap2/omapfb-sysfs.c
create mode 100644 drivers/video/omap2/omapfb.h
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
index 3746222..0ba1603 100644
--- a/arch/arm/plat-omap/fb.c
+++ b/arch/arm/plat-omap/fb.c
@@ -36,7 +36,8 @@
#include <mach/sram.h>
#include <mach/omapfb.h>
-#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
+#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE) \
+ || defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
static struct omapfb_platform_data omapfb_config;
static int config_invalid;
@@ -298,14 +299,18 @@ unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
return reserved;
}
+#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
void omapfb_set_ctrl_platform_data(void *data)
{
omapfb_config.ctrl_platform_data = data;
}
+#endif
static inline int omap_init_fb(void)
{
+#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
const struct omap_lcd_config *conf;
+#endif
if (config_invalid)
return 0;
@@ -313,6 +318,7 @@ static inline int omap_init_fb(void)
printk(KERN_ERR "Invalid FB mem configuration entries\n");
return 0;
}
+#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
if (conf == NULL) {
if (configured_regions)
@@ -321,6 +327,7 @@ static inline int omap_init_fb(void)
return 0;
}
omapfb_config.lcd = *conf;
+#endif
return platform_device_register(&omap_fb_device);
}
diff --git a/arch/arm/plat-omap/include/mach/omapfb.h b/arch/arm/plat-omap/include/mach/omapfb.h
index a3c4408..e69c0b1 100644
--- a/arch/arm/plat-omap/include/mach/omapfb.h
+++ b/arch/arm/plat-omap/include/mach/omapfb.h
@@ -90,6 +90,13 @@ enum omapfb_color_format {
OMAPFB_COLOR_CLUT_1BPP,
OMAPFB_COLOR_RGB444,
OMAPFB_COLOR_YUY422,
+
+ OMAPFB_COLOR_ARGB16,
+ OMAPFB_COLOR_RGB24U, /* RGB24, 32-bit container */
+ OMAPFB_COLOR_RGB24P, /* RGB24, 24-bit container */
+ OMAPFB_COLOR_ARGB32,
+ OMAPFB_COLOR_RGBA32,
+ OMAPFB_COLOR_RGBX32,
};
struct omapfb_update_window {
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 0f13448..4b45731 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2084,6 +2084,7 @@ config FB_METRONOME
and could also have been called by some vendors as PVI-nnnn.
source "drivers/video/omap/Kconfig"
+source "drivers/video/omap2/Kconfig"
source "drivers/video/backlight/Kconfig"
source "drivers/video/display/Kconfig"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 248bddc..4d69355 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -120,6 +120,7 @@ obj-$(CONFIG_FB_SM501) += sm501fb.o
obj-$(CONFIG_FB_XILINX) += xilinxfb.o
obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o
obj-$(CONFIG_FB_OMAP) += omap/
+obj-$(CONFIG_OMAP2_DSS) += omap2/
obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o
obj-$(CONFIG_FB_CARMINE) += carminefb.o
diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
index 5ebd591..8b6c675 100644
--- a/drivers/video/omap/Kconfig
+++ b/drivers/video/omap/Kconfig
@@ -1,6 +1,7 @@
config FB_OMAP
tristate "OMAP frame buffer support (EXPERIMENTAL)"
- depends on FB && ARCH_OMAP
+ depends on FB && ARCH_OMAP && (OMAP2_DSS = "n")
+
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -76,7 +77,7 @@ config FB_OMAP_BOOTLOADER_INIT
config FB_OMAP_CONSISTENT_DMA_SIZE
int "Consistent DMA memory size (MB)"
- depends on FB_OMAP
+ depends on FB && ARCH_OMAP
range 1 14
default 2
help
diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig
new file mode 100644
index 0000000..4b72479
--- /dev/null
+++ b/drivers/video/omap2/Kconfig
@@ -0,0 +1,29 @@
+config FB_OMAP2
+ tristate "OMAP2/3 frame buffer support (EXPERIMENTAL)"
+ depends on FB && OMAP2_DSS
+
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ Frame buffer driver for OMAP2/3 based boards.
+
+config FB_OMAP2_DEBUG
+ bool "Debug output for OMAP2/3 FB"
+ depends on FB_OMAP2
+
+config FB_OMAP2_FORCE_AUTO_UPDATE
+ bool "Force main display to automatic update mode"
+ depends on FB_OMAP2
+ help
+ Forces main display to automatic update mode (if possible),
+ and also enables tearsync (if possible). By default
+ displays that support manual update are started in manual
+ update mode.
+
+menu "OMAP2/3 Display Device Drivers"
+ depends on OMAP2_DSS
+
+
+endmenu
+
diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile
new file mode 100644
index 0000000..51c2e00
--- /dev/null
+++ b/drivers/video/omap2/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_FB_OMAP2) += omapfb.o
+omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o
diff --git a/drivers/video/omap2/omapfb-ioctl.c b/drivers/video/omap2/omapfb-ioctl.c
new file mode 100644
index 0000000..1ceb6b9
--- /dev/null
+++ b/drivers/video/omap2/omapfb-ioctl.c
@@ -0,0 +1,428 @@
+/*
+ * linux/drivers/video/omap2/omapfb-ioctl.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tom...@no...>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/fb.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+
+#include <mach/display.h>
+#include <mach/omapfb.h>
+
+#include "omapfb.h"
+
+static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_display *display = fb2display(fbi);
+ struct omap_overlay *ovl;
+ int r = 0;
+
+ DBG("omapfb_setup_plane\n");
+
+ if (ofbi->num_overlays != 1) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ ovl = ofbi->overlays[0];
+
+ omapfb_lock(fbdev);
+
+ if (display) {
+ if (pi->pos_x + pi->out_width > display->x_res ||
+ pi->pos_y + pi->out_height > display->y_res) {
+ r = -EINVAL;
+ goto out;
+ }
+ }
+
+ if (pi->enabled && !ofbi->region.size) {
+ /*
+ * This plane's memory was freed, can't enable it
+ * until it's reallocated.
+ */
+ r = -EINVAL;
+ goto out;
+ }
+
+ if (!ovl) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
+ pi->out_width, pi->out_height);
+ if (r)
+ goto out;
+
+ ovl->enable(ovl, pi->enabled);
+
+ if (ovl->manager)
+ ovl->manager->apply(ovl->manager);
+
+ if (display) {
+ if (display->sync)
+ display->sync(display);
+
+ if (display->update)
+ display->update(display, 0, 0,
+ display->x_res, display->y_res);
+ }
+
+out:
+ omapfb_unlock(fbdev);
+ if (r)
+ dev_err(fbdev->dev, "setup_plane failed\n");
+ return r;
+}
+
+static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+
+ omapfb_lock(fbdev);
+
+ if (ofbi->num_overlays != 1) {
+ memset(pi, 0, sizeof(*pi));
+ } else {
+ struct omap_overlay_info *ovli;
+ struct omap_overlay *ovl;
+
+ ovl = ofbi->overlays[0];
+ ovli = &ovl->info;
+
+ pi->pos_x = ovli->pos_x;
+ pi->pos_y = ovli->pos_y;
+ pi->enabled = ovli->enabled;
+ pi->channel_out = 0; /* xxx */
+ pi->mirror = 0;
+ pi->out_width = ovli->out_width;
+ pi->out_height = ovli->out_height;
+ }
+
+ omapfb_unlock(fbdev);
+
+ return 0;
+}
+
+static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omapfb_mem_region *rg;
+ int ret = -EINVAL;
+
+ rg = &ofbi->region;
+
+ omapfb_lock(fbdev);
+ if (mi->size > rg->size) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (mi->type != rg->type)
+ goto out;
+
+ ret = 0;
+out:
+ omapfb_unlock(fbdev);
+
+ return ret;
+}
+
+static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omapfb_mem_region *rg;
+
+ rg = &ofbi->region;
+ memset(mi, 0, sizeof(*mi));
+
+ omapfb_lock(fbdev);
+ mi->size = rg->size;
+ mi->type = rg->type;
+ omapfb_unlock(fbdev);
+
+ return 0;
+}
+
+static int omapfb_update_window(struct fb_info *fbi,
+ u32 x, u32 y, u32 w, u32 h)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_display *display = fb2display(fbi);
+
+ if (!display)
+ return 0;
+
+ if (w == 0 || h == 0)
+ return 0;
+
+ if (x + w > display->x_res || y + h > display->y_res)
+ return -EINVAL;
+
+ omapfb_lock(fbdev);
+ display->update(display, x, y, w, h);
+ omapfb_unlock(fbdev);
+
+ return 0;
+}
+
+static int omapfb_set_update_mode(struct fb_info *fbi,
+ enum omapfb_update_mode mode)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_display *display = fb2display(fbi);
+ enum omap_dss_update_mode um;
+ int r;
+
+ if (!display || !display->set_update_mode)
+ return -EINVAL;
+
+ switch (mode) {
+ case OMAPFB_UPDATE_DISABLED:
+ um = OMAP_DSS_UPDATE_DISABLED;
+ break;
+
+ case OMAPFB_AUTO_UPDATE:
+ um = OMAP_DSS_UPDATE_AUTO;
+ break;
+
+ case OMAPFB_MANUAL_UPDATE:
+ um = OMAP_DSS_UPDATE_MANUAL;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ omapfb_lock(fbdev);
+ r = display->set_update_mode(display, um);
+ omapfb_unlock(fbdev);
+
+ return r;
+}
+
+static int omapfb_get_update_mode(struct fb_info *fbi,
+ enum omapfb_update_mode *mode)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_display *display = fb2display(fbi);
+ enum omap_dss_update_mode m;
+
+ if (!display || !display->get_update_mode)
+ return -EINVAL;
+
+ omapfb_lock(fbdev);
+ m = display->get_update_mode(display);
+ omapfb_unlock(fbdev);
+
+ switch (m) {
+ case OMAP_DSS_UPDATE_DISABLED:
+ *mode = OMAPFB_UPDATE_DISABLED;
+ break;
+ case OMAP_DSS_UPDATE_AUTO:
+ *mode = OMAPFB_AUTO_UPDATE;
+ break;
+ case OMAP_DSS_UPDATE_MANUAL:
+ *mode = OMAPFB_MANUAL_UPDATE;
+ break;
+ default:
+ BUG();
+ }
+
+ return 0;
+}
+
+int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_display *display = fb2display(fbi);
+
+ union {
+ struct omapfb_update_window_old uwnd_o;
+ struct omapfb_update_window uwnd;
+ struct omapfb_plane_info plane_info;
+ struct omapfb_caps caps;
+ struct omapfb_mem_info mem_info;
+ enum omapfb_update_mode update_mode;
+ int test_num;
+ } p;
+
+ int r = 0;
+
+ DBG("ioctl %x (%d)\n", cmd, cmd & 0xff);
+
+ switch (cmd) {
+ case OMAPFB_SYNC_GFX:
+ if (!display || !display->sync) {
+ r = -EINVAL;
+ break;
+ }
+
+ omapfb_lock(fbdev);
+ r = display->sync(display);
+ omapfb_unlock(fbdev);
+ break;
+
+ case OMAPFB_UPDATE_WINDOW_OLD:
+ if (!display || !display->update) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (copy_from_user(&p.uwnd_o,
+ (void __user *)arg,
+ sizeof(p.uwnd_o))) {
+ r = -EFAULT;
+ break;
+ }
+
+ r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
+ p.uwnd_o.width, p.uwnd_o.height);
+ break;
+
+ case OMAPFB_UPDATE_WINDOW:
+ if (!display || !display->update) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (copy_from_user(&p.uwnd, (void __user *)arg,
+ sizeof(p.uwnd))) {
+ r = -EFAULT;
+ break;
+ }
+
+ r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
+ p.uwnd.width, p.uwnd.height);
+ break;
+
+ case OMAPFB_SETUP_PLANE:
+ if (copy_from_user(&p.plane_info, (void __user *)arg,
+ sizeof(p.plane_info)))
+ r = -EFAULT;
+ else
+ r = omapfb_setup_plane(fbi, &p.plane_info);
+ break;
+
+ case OMAPFB_QUERY_PLANE:
+ r = omapfb_query_plane(fbi, &p.plane_info);
+ if (r < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.plane_info,
+ sizeof(p.plane_info)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_SETUP_MEM:
+ if (copy_from_user(&p.mem_info, (void __user *)arg,
+ sizeof(p.mem_info)))
+ r = -EFAULT;
+ else
+ r = omapfb_setup_mem(fbi, &p.mem_info);
+ break;
+
+ case OMAPFB_QUERY_MEM:
+ r = omapfb_query_mem(fbi, &p.mem_info);
+ if (r < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.mem_info,
+ sizeof(p.mem_info)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_GET_CAPS:
+ if (!display) {
+ r = -EINVAL;
+ break;
+ }
+
+ p.caps.ctrl = display->caps;
+
+ if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_SET_UPDATE_MODE:
+ if (get_user(p.update_mode, (int __user *)arg))
+ r = -EFAULT;
+ else
+ r = omapfb_set_update_mode(fbi, p.update_mode);
+ break;
+
+ case OMAPFB_GET_UPDATE_MODE:
+ r = omapfb_get_update_mode(fbi, &p.update_mode);
+ if (r)
+ break;
+ if (put_user(p.update_mode,
+ (enum omapfb_update_mode __user *)arg))
+ r = -EFAULT;
+ break;
+
+ /* LCD and CTRL tests do the same thing for backward
+ * compatibility */
+ case OMAPFB_LCD_TEST:
+ if (get_user(p.test_num, (int __user *)arg)) {
+ r = -EFAULT;
+ break;
+ }
+ if (!display || !display->run_test) {
+ r = -EINVAL;
+ break;
+ }
+
+ r = display->run_test(display, p.test_num);
+
+ break;
+
+ case OMAPFB_CTRL_TEST:
+ if (get_user(p.test_num, (int __user *)arg)) {
+ r = -EFAULT;
+ break;
+ }
+ if (!display || !display->run_test) {
+ r = -EINVAL;
+ break;
+ }
+
+ r = display->run_test(display, p.test_num);
+
+ break;
+
+ default:
+ DBG("ioctl unhandled\n");
+ r = -EINVAL;
+ }
+
+ return r;
+}
+
+
diff --git a/drivers/video/omap2/omapfb-main.c b/drivers/video/omap2/omapfb-main.c
new file mode 100644
index 0000000..7ef7080
--- /dev/null
+++ b/drivers/video/omap2/omapfb-main.c
@@ -0,0 +1,1247 @@
+/*
+ * linux/drivers/video/omap2/omapfb-main.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tom...@no...>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+#include <mach/display.h>
+#include <mach/omapfb.h>
+
+#include "omapfb.h"
+
+#define MODULE_NAME "omapfb"
+
+#ifdef DEBUG
+static void fill_fb(void *addr, struct fb_info *fbi)
+{
+ struct fb_var_screeninfo *var = &fbi->var;
+
+ const short w = var->xres_virtual;
+ const short h = var->yres_virtual;
+
+ int y, x;
+ u8 *p = addr;
+
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < w; x++) {
+ if (var->bits_per_pixel == 16) {
+ u16 *pw = (u16 *)p;
+
+ if (x == 20 || x == w - 20 ||
+ y == 20 || y == h - 20)
+ *pw = 0xffff;
+ else if (x == y || w - x == h - y)
+ *pw = ((1<<5)-1)<<11;
+ else if (w - x == y || x == h - y)
+ *pw = ((1<<6)-1)<<5;
+ else {
+ int t = x / (w/3);
+ if (t == 0)
+ *pw = y % 32;
+ else if (t == 1)
+ *pw = (y % 64) << 5;
+ else if (t == 2)
+ *pw = (y % 32) << 11;
+ }
+ } else if (var->bits_per_pixel == 24) {
+ u8 *pb = (u8 *)p;
+
+ int r = 0, g = 0, b = 0;
+
+ if (x == 20 || x == w - 20 ||
+ y == 20 || y == h - 20)
+ r = g = b = 0xff;
+ else if (x == y || w - x == h - y)
+ r = 0xff;
+ else if (w - x == y || x == h - y)
+ g = 0xff;
+ else {
+ int q = x / (w / 3);
+ u8 base = 255 - (y % 256);
+ if (q == 0)
+ r = base;
+ else if (q == 1)
+ g = base;
+ else if (q == 2)
+ b = base;
+ }
+
+ pb[0] = b;
+ pb[1] = g;
+ pb[2] = r;
+
+ } else if (var->bits_per_pixel == 32) {
+ u32 *pd = (u32 *)p;
+
+ if (x == 20 || x == w - 20 ||
+ y == 20 || y == h - 20)
+ *pd = 0xffffff;
+ else if (x == y || w - x == h - y)
+ *pd = 0xff0000;
+ else if (w - x == y || x == h - y)
+ *pd = 0x00ff00;
+ else {
+ u8 base = 255 - (y % 256);
+ *pd = base << ((x / (w/3)) << 3);
+ }
+ }
+
+ p += var->bits_per_pixel >> 3;
+ }
+ }
+}
+#endif
+
+static enum omap_color_mode fb_mode_to_dss_mode(struct fb_var_screeninfo *var)
+{
+ switch (var->nonstd) {
+ case 0:
+ break;
+ case OMAPFB_COLOR_YUV422:
+ return OMAP_DSS_COLOR_YUV2;
+
+ case OMAPFB_COLOR_YUY422:
+ return OMAP_DSS_COLOR_UYVY;
+
+ case OMAPFB_COLOR_ARGB16:
+ return OMAP_DSS_COLOR_ARGB16;
+
+ case OMAPFB_COLOR_ARGB32:
+ return OMAP_DSS_COLOR_ARGB32;
+
+ case OMAPFB_COLOR_RGBA32:
+ return OMAP_DSS_COLOR_RGBA32;
+
+ case OMAPFB_COLOR_RGBX32:
+ return OMAP_DSS_COLOR_RGBX32;
+
+ default:
+ return -EINVAL;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 1:
+ return OMAP_DSS_COLOR_CLUT1;
+ case 2:
+ return OMAP_DSS_COLOR_CLUT2;
+ case 4:
+ return OMAP_DSS_COLOR_CLUT4;
+ case 8:
+ return OMAP_DSS_COLOR_CLUT8;
+ case 12:
+ return OMAP_DSS_COLOR_RGB12U;
+ case 16:
+ return OMAP_DSS_COLOR_RGB16;
+ case 24:
+ return OMAP_DSS_COLOR_RGB24P;
+ case 32:
+ return OMAP_DSS_COLOR_RGB24U;
+ default:
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}
+
+static void set_fb_fix(struct fb_info *fbi)
+{
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct omapfb_mem_region *rg = &FB2OFB(fbi)->region;
+
+ DBG("set_fb_fix\n");
+
+ /* used by open/write in fbmem.c */
+ fbi->screen_base = (char __iomem *)rg->vaddr;
+
+ /* used by mmap in fbmem.c */
+ fix->smem_start = rg->paddr;
+ fix->smem_len = rg->size;
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+
+ if (var->nonstd)
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ else {
+ switch (var->bits_per_pixel) {
+ case 32:
+ case 24:
+ case 16:
+ case 12:
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ /* 12bpp is stored in 16 bits */
+ break;
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ break;
+ }
+ }
+
+ fix->accel = FB_ACCEL_NONE;
+ fix->line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
+}
+
+/* check new var and possibly modify it to be ok */
+static int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omap_display *display = fb2display(fbi);
+ unsigned long max_frame_size;
+ unsigned long line_size;
+ int xres_min, xres_max;
+ int yres_min, yres_max;
+ enum omap_color_mode mode = 0;
+ struct omap_overlay *ovl;
+
+ DBG("check_fb_var %d\n", ofbi->id);
+
+ if (ofbi->num_overlays == 0) {
+ dev_err(ofbi->fbdev->dev, "no overlays, aborting\n");
+ return -EINVAL;
+ }
+
+ /* XXX: uses the first overlay */
+ ovl = ofbi->overlays[0];
+
+ /* if we are using non standard mode, fix the bpp first */
+ switch (var->nonstd) {
+ case 0:
+ break;
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUY422:
+ case OMAPFB_COLOR_ARGB16:
+ var->bits_per_pixel = 16;
+ break;
+ case OMAPFB_COLOR_ARGB32:
+ case OMAPFB_COLOR_RGBA32:
+ case OMAPFB_COLOR_RGBX32:
+ var->bits_per_pixel = 32;
+ break;
+ default:
+ DBG("invalid nonstd mode\n");
+ return -EINVAL;
+ }
+
+ mode = fb_mode_to_dss_mode(var);
+ if (mode < 0) {
+ DBG("cannot convert var to omap dss mode\n");
+ return -EINVAL;
+ }
+
+ if ((ovl->supported_modes & mode) == 0) {
+ DBG("invalid mode\n");
+ return -EINVAL;
+ }
+
+ xres_min = OMAPFB_PLANE_XRES_MIN;
+ xres_max = (display ? display->x_res : 2048) - ovl->info.pos_x;
+ yres_min = OMAPFB_PLANE_YRES_MIN;
+ yres_max = (display ? display->y_res : 2048) - ovl->info.pos_y;
+
+ if (var->xres < xres_min)
+ var->xres = xres_min;
+ if (var->yres < yres_min)
+ var->yres = yres_min;
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+ max_frame_size = ofbi->region.size;
+ line_size = (var->xres_virtual * var->bits_per_pixel) >> 3;
+
+ if (line_size * var->yres_virtual > max_frame_size) {
+ /* Try to keep yres_virtual first */
+ line_size = max_frame_size / var->yres_virtual;
+ var->xres_virtual = line_size * 8 / var->bits_per_pixel;
+ if (var->xres_virtual < var->xres) {
+ /* Still doesn't fit. Shrink yres_virtual too */
+ var->xres_virtual = var->xres;
+ line_size = var->xres * var->bits_per_pixel / 8;
+ var->yres_virtual = max_frame_size / line_size;
+ }
+ /* Recheck this, as the virtual size changed. */
+ if (var->xres_virtual < var->xres)
+ var->xres = var->xres_virtual;
+ if (var->yres_virtual < var->yres)
+ var->yres = var->yres_virtual;
+ if (var->xres < xres_min || var->yres < yres_min) {
+ DBG("Cannot fit FB to memory\n");
+ return -EINVAL;
+ }
+ }
+ if (var->xres + var->xoffset > var->xres_virtual)
+ var->xoffset = var->xres_virtual - var->xres;
+ if (var->yres + var->yoffset > var->yres_virtual)
+ var->yoffset = var->yres_virtual - var->yres;
+
+ if (var->bits_per_pixel == 16) {
+ var->red.offset = 11; var->red.length = 5;
+ var->red.msb_right = 0;
+ var->green.offset = 5; var->green.length = 6;
+ var->green.msb_right = 0;
+ var->blue.offset = 0; var->blue.length = 5;
+ var->blue.msb_right = 0;
+ } else if (var->bits_per_pixel == 24) {
+ var->red.offset = 16; var->red.length = 8;
+ var->red.msb_right = 0;
+ var->green.offset = 8; var->green.length = 8;
+ var->green.msb_right = 0;
+ var->blue.offset = 0; var->blue.length = 8;
+ var->blue.msb_right = 0;
+ var->transp.offset = 0; var->transp.length = 0;
+ } else if (var->bits_per_pixel == 32) {
+ var->red.offset = 16; var->red.length = 8;
+ var->red.msb_right = 0;
+ var->green.offset = 8; var->green.length = 8;
+ var->green.msb_right = 0;
+ var->blue.offset = 0; var->blue.length = 8;
+ var->blue.msb_right = 0;
+ var->transp.offset = 0; var->transp.length = 0;
+ } else {
+ DBG("failed to setup fb color mask\n");
+ return -EINVAL;
+ }
+
+ DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
+ var->xres, var->yres,
+ var->xres_virtual, var->yres_virtual);
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+
+ if (display && display->check_timings) {
+ struct omap_video_timings timings;
+ timings.pixel_clock = PICOS2KHZ(var->pixclock);
+ timings.hfp = var->left_margin;
+ timings.hbp = var->right_margin;
+ timings.vfp = var->upper_margin;
+ timings.vbp = var->lower_margin;
+ timings.hsw = var->hsync_len;
+ timings.vsw = var->vsync_len;
+
+ if (display->check_timings(display, &timings)) {
+ DBG("illegal video timings\n");
+ return -EINVAL;
+ }
+
+ /* pixclock in ps, the rest in pixclock */
+ var->pixclock = KHZ2PICOS(timings.pixel_clock);
+ var->left_margin = timings.hfp;
+ var->right_margin = timings.hbp;
+ var->upper_margin = timings.vfp;
+ var->lower_margin = timings.vbp;
+ var->hsync_len = timings.hsw;
+ var->vsync_len = timings.vsw;
+ }
+
+ /* TODO: get these from panel->config */
+ var->vmode = FB_VMODE_NONINTERLACED;
+ var->sync = 0;
+
+ return 0;
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * fbdev framework callbacks
+ * ---------------------------------------------------------------------------
+ */
+static int omapfb_open(struct fb_info *fbi, int user)
+{
+ return 0;
+}
+
+static int omapfb_release(struct fb_info *fbi, int user)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_display *display = fb2display(fbi);
+
+ DBG("Closing fb with plane index %d\n", ofbi->id);
+
+ omapfb_lock(fbdev);
+#if 1
+ if (display) {
+ /* XXX Is this really needed ? */
+ if (display->sync)
+ display->sync(display);
+
+ if (display->update)
+ display->update(display,
+ 0, 0,
+ display->x_res, display->y_res);
+ }
+#endif
+
+ if (display && display->sync)
+ display->sync(display);
+
+ omapfb_unlock(fbdev);
+
+ return 0;
+}
+
+/* setup overlay according to the fb */
+int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
+ int posx, int posy, int outw, int outh)
+{
+ int r = 0;
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct fb_var_screeninfo *var = &fbi->var;
+ enum omap_color_mode mode = 0;
+ int offset;
+ u32 data_start_p;
+ void *data_start_v;
+
+ DBG("setup_overlay %d\n", ofbi->id);
+
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
+ (outw != var->xres || outh != var->yres)) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ offset = ((var->yoffset * var->xres_virtual +
+ var->xoffset) * var->bits_per_pixel) >> 3;
+
+ data_start_p = ofbi->region.paddr + offset;
+ data_start_v = ofbi->region.vaddr + offset;
+
+ mode = fb_mode_to_dss_mode(var);
+
+ if (mode == -EINVAL) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ r = ovl->setup_input(ovl,
+ data_start_p, data_start_v,
+ var->xres_virtual,
+ var->xres, var->yres,
+ mode);
+
+ if (r)
+ goto err;
+
+ r = ovl->setup_output(ovl,
+ posx, posy,
+ outw, outh);
+
+ if (r)
+ goto err;
+
+ return 0;
+
+err:
+ DBG("setup_overlay failed\n");
+ return r;
+}
+
+/* apply var to the overlay */
+int omapfb_apply_changes(struct fb_info *fbi, int init)
+{
+ int r = 0;
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct fb_var_screeninfo *var = &fbi->var;
+ /*struct omap_display *display = fb2display(fbi);*/
+ struct omap_overlay *ovl;
+ int posx, posy;
+ int outw, outh;
+ int i;
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ ovl = ofbi->overlays[i];
+
+ DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
+
+ if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+ outw = var->xres;
+ outh = var->yres;
+ } else {
+ outw = ovl->info.out_width;
+ outh = ovl->info.out_height;
+ }
+
+ if (init) {
+ posx = 0;
+ posy = 0;
+ } else {
+ posx = ovl->info.pos_x;
+ posy = ovl->info.pos_y;
+ }
+
+ r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
+ if (r)
+ goto err;
+
+ /* disabled for now. if the display has changed, var
+ * still contains the old timings. */
+#if 0
+ if (display && display->set_timings) {
+ struct omap_video_timings timings;
+ timings.pixel_clock = PICOS2KHZ(var->pixclock);
+ timings.hfp = var->left_margin;
+ timings.hbp = var->right_margin;
+ timings.vfp = var->upper_margin;
+ timings.vbp = var->lower_margin;
+ timings.hsw = var->hsync_len;
+ timings.vsw = var->vsync_len;
+
+ display->set_timings(display, &timings);
+ }
+#endif
+ if (!init && ovl->manager)
+ ovl->manager->apply(ovl->manager);
+ }
+ return 0;
+err:
+ DBG("apply_changes failed\n");
+ return r;
+}
+
+/* checks var and eventually tweaks it to something supported,
+ * DO NOT MODIFY PAR */
+static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
+{
+ int r;
+
+ DBG("check_var(%d)\n", FB2OFB(fbi)->id);
+
+ r = check_fb_var(fbi, var);
+
+ return r;
+}
+
+/* set the video mode according to info->var */
+static int omapfb_set_par(struct fb_info *fbi)
+{
+ int r;
+
+ DBG("set_par(%d)\n", FB2OFB(fbi)->id);
+
+ set_fb_fix(fbi);
+ r = omapfb_apply_changes(fbi, 0);
+
+ return r;
+}
+
+static void omapfb_rotate(struct fb_info *fbi, int rotate)
+{
+ DBG("rotate(%d)\n", FB2OFB(fbi)->id);
+ return;
+}
+
+static int omapfb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *fbi)
+{
+ DBG("pan_display(%d)\n", FB2OFB(fbi)->id);
+ return 0;
+}
+
+static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omapfb_mem_region *rg = &ofbi->region;
+
+ return dma_mmap_writecombine(fbdev->dev, vma,
+ rg->vaddr,
+ rg->paddr,
+ rg->size);
+}
+
+/* Store a single color palette entry into a pseudo palette or the hardware
+ * palette if one is available. For now we support only 16bpp and thus store
+ * the entry only to the pseudo palette.
+ */
+static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
+ u_int blue, u_int transp, int update_hw_pal)
+{
+ /*struct omapfb_info *ofbi = FB2OFB(fbi);*/
+ /*struct omapfb2_device *fbdev = ofbi->fbdev;*/
+ struct fb_var_screeninfo *var = &fbi->var;
+ int r = 0;
+
+ enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
+
+ /*switch (plane->color_mode) {*/
+ switch (mode) {
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUV420:
+ case OMAPFB_COLOR_YUY422:
+ r = -EINVAL;
+ break;
+ case OMAPFB_COLOR_CLUT_8BPP:
+ case OMAPFB_COLOR_CLUT_4BPP:
+ case OMAPFB_COLOR_CLUT_2BPP:
+ case OMAPFB_COLOR_CLUT_1BPP:
+ /*
+ if (fbdev->ctrl->setcolreg)
+ r = fbdev->ctrl->setcolreg(regno, red, green, blue,
+ transp, update_hw_pal);
+ */
+ /* Fallthrough */
+ r = -EINVAL;
+ break;
+ case OMAPFB_COLOR_RGB565:
+ case OMAPFB_COLOR_RGB444:
+ case OMAPFB_COLOR_RGB24P:
+ case OMAPFB_COLOR_RGB24U:
+ if (r != 0)
+ break;
+
+ if (regno < 0) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (regno < 16) {
+ u16 pal;
+ pal = ((red >> (16 - var->red.length)) <<
+ var->red.offset) |
+ ((green >> (16 - var->green.length)) <<
+ var->green.offset) |
+ (blue >> (16 - var->blue.length));
+ ((u32 *)(fbi->pseudo_palette))[regno] = pal;
+ }
+ break;
+ default:
+ BUG();
+ }
+ return r;
+}
+
+static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ DBG("setcolreg\n");
+
+ return _setcolreg(info, regno, red, green, blue, transp, 1);
+}
+
+static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
+{
+ int count, index, r;
+ u16 *red, *green, *blue, *transp;
+ u16 trans = 0xffff;
+
+ DBG("setcmap\n");
+
+ red = cmap->red;
+ green = cmap->green;
+ blue = cmap->blue;
+ transp = cmap->transp;
+ index = cmap->start;
+
+ for (count = 0; count < cmap->len; count++) {
+ if (transp)
+ trans = *transp++;
+ r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
+ count == cmap->len - 1);
+ if (r != 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int omapfb_blank(int blank, struct fb_info *fbi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_display *display = fb2display(fbi);
+ int do_update = 0;
+ int r = 0;
+
+ omapfb_lock(fbdev);
+
+ switch (blank) {
+ case VESA_NO_BLANKING:
+ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) {
+ r = -EINVAL;
+ goto exit;
+ }
+
+ if (display->resume)
+ r = display->resume(display);
+
+ if (r == 0 && display->get_update_mode &&
+ display->get_update_mode(display) ==
+ OMAP_DSS_UPDATE_MANUAL)
+ do_update = 1;
+
+ break;
+
+ case VESA_POWERDOWN:
+ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) {
+ r = -EINVAL;
+ goto exit;
+ }
+
+ if (display->suspend)
+ r = display->suspend(display);
+
+ break;
+
+ default:
+ r = -EINVAL;
+ }
+
+exit:
+ omapfb_unlock(fbdev);
+
+ if (r == 0 && do_update && display->update)
+ r = display->update(display,
+ 0, 0,
+ display->x_res, display->y_res);
+
+ return r;
+}
+
+static struct fb_ops omapfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_open = omapfb_open,
+ .fb_release = omapfb_release,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_blank = omapfb_blank,
+ .fb_ioctl = omapfb_ioctl,
+ .fb_check_var = omapfb_check_var,
+ .fb_set_par = omapfb_set_par,
+ .fb_rotate = omapfb_rotate,
+ .fb_pan_display = omapfb_pan_display,
+ .fb_mmap = omapfb_mmap,
+ .fb_setcolreg = omapfb_setcolreg,
+ .fb_setcmap = omapfb_setcmap,
+};
+
+static int omapfb_free_fbmem(struct omapfb2_device *fbdev)
+{
+ int i;
+
+ DBG("free fbmem\n");
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
+ struct omapfb_mem_region *rg;
+
+ rg = &ofbi->region;
+
+ if (rg->alloc) {
+ dma_free_writecombine(fbdev->dev, rg->size,
+ rg->vaddr, rg->paddr);
+ }
+
+ rg->vaddr = NULL;
+ rg->paddr = 0;
+ rg->alloc = 0;
+ }
+
+ fbdev->num_fbs = 0;
+
+ return 0;
+}
+
+static int omapfb_allocate_fbmem(struct omapfb2_device *fbdev)
+{
+ int i;
+ struct omapfb_mem_desc *plat_mem_desc;
+ struct omapfb_platform_data *pdata = fbdev->dev->platform_data;
+
+ plat_mem_desc = &pdata->mem_desc;
+
+ DBG("omapfb: setup mem regions, %d regions\n",
+ plat_mem_desc->region_cnt);
+
+ for (i = 0; i < plat_mem_desc->region_cnt; i++) {
+ struct omapfb_mem_region *plat_rg;
+ struct omapfb_mem_region *rg;
+ struct omapfb_info *ofb_info = FB2OFB(fbdev->fbs[i]);
+
+ plat_rg = &plat_mem_desc->region[i];
+ rg = &ofb_info->region;
+
+ memset(rg, 0, sizeof(*rg));
+
+ DBG("platform region%d phys %08x virt %p size=%lu\n",
+ i,
+ plat_rg->paddr,
+ plat_rg->vaddr,
+ plat_rg->size);
+
+ if (plat_rg->paddr == 0) {
+ u32 paddr;
+ void *vaddr;
+
+ vaddr = dma_alloc_writecombine(fbdev->dev,
+ plat_rg->size,
+ &paddr, GFP_KERNEL);
+
+ if (vaddr == NULL) {
+ dev_err(fbdev->dev,
+ "failed to allocate framebuffer\n");
+ return -ENOMEM;
+ }
+
+ rg->paddr = paddr;
+ rg->vaddr = vaddr;
+ rg->size = plat_rg->size;
+ rg->alloc = 1;
+ } else {
+ dev_err(fbdev->dev,
+ "Using preallocated fb not supported\n");
+ return -EINVAL;
+ }
+ }
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct omapfb_info *ofb_info = FB2OFB(fbdev->fbs[i]);
+ struct omapfb_mem_region *rg;
+ rg = &ofb_info->region;
+
+ DBG("region%d phys %08x virt %p size=%lu\n",
+ i,
+ rg->paddr,
+ rg->vaddr,
+ rg->size);
+ }
+
+ return 0;
+}
+
+/* initialize fb_info, var, fix to something sane based on the display */
+static int fbinfo_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
+{
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ struct omap_display *display = fb2display(fbi);
+ int r = 0;
+
+ if (!display) {
+ dev_err(fbdev->dev, "cannot fbinfo_init, no display\n");
+ return -EINVAL;
+ }
+
+ fbi->fbops = &omapfb_ops;
+ fbi->flags = FBINFO_FLAG_DEFAULT;
+ fbi->pseudo_palette = fbdev->pseudo_palette;
+
+ strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
+
+ var->xres = display->x_res;
+ var->yres = display->y_res;
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+ /* var->rotate = def_rotate; */
+
+ var->nonstd = 0;
+
+ switch (display->bpp) {
+ case 16:
+ var->bits_per_pixel = 16;
+ break;
+ case 18:
+ var->bits_per_pixel = 16;
+ break;
+ case 24:
+ var->bits_per_pixel = 32;
+ break;
+ default:
+ dev_err(fbdev->dev, "illegal display bpp\n");
+ return -EINVAL;
+ }
+
+ if (display->get_timings) {
+ struct omap_video_timings timings;
+ display->get_timings(display, &timings);
+
+ /* pixclock in ps, the rest in pixclock */
+ var->pixclock = KHZ2PICOS(timings.pixel_clock);
+ var->left_margin = timings.hfp;
+ var->right_margin = timings.hbp;
+ var->upper_margin = timings.vfp;
+ var->lower_margin = timings.vbp;
+ var->hsync_len = timings.hsw;
+ var->vsync_len = timings.vsw;
+ } else {
+ var->pixclock = 0;
+ var->left_margin = 0;
+ var->right_margin = 0;
+ var->upper_margin = 0;
+ var->lower_margin = 0;
+ var->hsync_len = 0;
+ var->vsync_len = 0;
+ }
+
+ r = check_fb_var(fbi, var);
+ if (r)
+ goto err;
+
+ set_fb_fix(fbi);
+
+#ifdef DEBUG
+ fill_fb(FB2OFB(fbi)->region.vaddr, fbi);
+#endif
+err:
+ return r;
+}
+
+static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
+{
+ fb_dealloc_cmap(&fbi->cmap);
+}
+
+
+static void omapfb_free_resources(struct omapfb2_device *fbdev)
+{
+ int i;
+
+ DBG("free_resources\n");
+
+ if (fbdev == NULL)
+ return;
+
+ for (i = 0; i < fbdev->num_fbs; i++)
+ unregister_framebuffer(fbdev->fbs[i]);
+
+ /* free the reserved fbmem */
+ omapfb_free_fbmem(fbdev);
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ fbinfo_cleanup(fbdev, fbdev->fbs[i]);
+ framebuffer_release(fbdev->fbs[i]);
+ }
+
+
+ for (i = 0; i < fbdev->num_displays; i++) {
+ if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED)
+ fbdev->displays[i]->disable(fbdev->displays[i]);
+
+ omap_dss_put_display(fbdev->displays[i]);
+ }
+
+ dev_set_drvdata(fbdev->dev, NULL);
+ kfree(fbdev);
+}
+
+static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
+{
+ int r;
+ int i;
+ struct omapfb_mem_desc *plat_mem_desc;
+ struct omapfb_platform_data *pdata = fbdev->dev->platform_data;
+
+ plat_mem_desc = &pdata->mem_desc;
+
+ fbdev->num_fbs = 0;
+
+ DBG("create %d framebuffers\n", plat_mem_desc->region_cnt);
+
+ /* allocate fb_infos */
+ for (i = 0; i < plat_mem_desc->region_cnt; i++) {
+ struct fb_info *fbi;
+ struct omapfb_info *ofbi;
+
+ fbi = framebuffer_alloc(sizeof(struct omapfb_info),
+ fbdev->dev);
+
+ if (fbi == NULL) {
+ dev_err(fbdev->dev,
+ "unable to allocate memory for plane info\n");
+ return -ENOMEM;
+ }
+
+ fbdev->fbs[i] = fbi;
+
+ ofbi = FB2OFB(fbi);
+ ofbi->fbdev = fbdev;
+ /* XXX here we presume we have enough overlays */
+ ofbi->overlays[0] = fbdev->overlays[i];
+ ofbi->num_overlays = 1;
+ ofbi->id = i;
+ fbdev->num_fbs++;
+ }
+
+ DBG("fb_infos allocated\n");
+
+ /* allocate fb memories */
+ r = omapfb_allocate_fbmem(fbdev);
+ if (r) {
+ dev_err(fbdev->dev, "failed to allocate fbmem\n");
+ return r;
+ }
+
+ DBG("fbmems allocated\n");
+
+ /* setup fb_infos */
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ r = fbinfo_init(fbdev, fbdev->fbs[i]);
+ if (r) {
+ dev_err(fbdev->dev, "failed to setup fb_info\n");
+ return r;
+ }
+ }
+
+ DBG("fb_infos initialized\n");
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ r = register_framebuffer(fbdev->fbs[i]);
+ if (r != 0) {
+ dev_err(fbdev->dev,
+ "registering framebuffer %d failed\n", i);
+ return r;
+ }
+ }
+
+ DBG("framebuffers registered\n");
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ r = omapfb_apply_changes(fbdev->fbs[i], 1);
+ if (r)
+ dev_err(fbdev->dev, "failed to change mode\n");
+ }
+
+ /* Enable the first framebuffer that has overlay that is connected
+ * to display. Usually this would be the GFX plane. */
+ r = 0;
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
+ int t;
+
+ for (t = 0; t < ofbi->num_overlays; t++) {
+ struct omap_overlay *ovl = ofbi->overlays[t];
+ if (ovl->manager && ovl->manager->display) {
+ ovl->enable(ovl, 1);
+ r = 1;
+ break;
+ }
+ }
+
+ if (r)
+ break;
+ }
+
+ DBG("create_framebuffers done\n");
+
+ return 0;
+}
+
+static int omapfb_probe(struct platform_device *pdev)
+{
+ struct omapfb2_device *fbdev = NULL;
+ int r = 0;
+ int i, t;
+ struct omap_overlay *ovl;
+ struct omap_display *def_display;
+
+ DBG("omapfb_probe\n");
+
+ if (pdev->num_resources != 0) {
+ dev_err(&pdev->dev, "probed for an unknown device\n");
+ r = -ENODEV;
+ goto err0;
+ }
+
+ if (pdev->dev.platform_data == NULL) {
+ dev_err(&pdev->dev, "missing platform data\n");
+ r = -ENOENT;
+ goto err0;
+ }
+
+ fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
+ if (fbdev == NULL) {
+ r = -ENOMEM;
+ goto err0;
+ }
+
+ mutex_init(&fbdev->mtx);
+
+ fbdev->dev = &pdev->dev;
+ platform_set_drvdata(pdev, fbdev);
+
+ fbdev->num_displays = 0;
+ t = omap_dss_get_num_displays();
+ for (i = 0; i < t; i++) {
+ struct omap_display *display;
+ display = omap_dss_get_display(i);
+ if (!display) {
+ dev_err(&pdev->dev, "can't get display %d\n", i);
+ r = -EINVAL;
+ goto cleanup;
+ }
+
+ fbdev->displays[fbdev->num_displays++] = display;
+ }
+
+ if (fbdev->num_displays == 0) {
+ dev_err(&pdev->dev, "no displays\n");
+ r = -EINVAL;
+ goto cleanup;
+ }
+
+ fbdev->num_overlays = omap_dss_get_num_overlays();
+ for (i = 0; i < fbdev->num_overlays; i++)
+ fbdev->overlays[i] = omap_dss_get_overlay(i);
+
+ fbdev->num_managers = omap_dss_get_num_overlay_managers();
+ for (i = 0; i < fbdev->num_managers; i++)
+ fbdev->managers[i] = omap_dss_get_overlay_manager(i);
+
+
+ /* gfx overlay should be the default one. find a display
+ * connected to that, and use it as default display */
+ ovl = omap_dss_get_overlay(0);
+ if (ovl->manager && ovl->manager->display) {
+ def_display = ovl->manager->display;
+ } else {
+ dev_err(&pdev->dev, "cannot find default display\n");
+ r = -EINVAL;
+ goto cleanup;
+ }
+
+ r = omapfb_create_framebuffers(fbdev);
+ if (r)
+ goto cleanup;
+
+ for (i = 0; i < fbdev->num_managers; i++) {
+ struct omap_overlay_manager *mgr;
+ mgr = fbdev->managers[i];
+ r = mgr->apply(mgr);
+ if (r) {
+ dev_err(fbdev->dev, "failed to apply dispc config\n");
+ goto cleanup;
+ }
+ }
+
+ DBG("mgr->apply'ed\n");
+
+ r = def_display->enable(def_display);
+ if (r) {
+ dev_err(fbdev->dev, "Failed to enable display '%s'\n",
+ def_display->name);
+ goto cleanup;
+ }
+
+ /* set the update mode */
+ if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
+#ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
+ if (def_display->set_update_mode)
+ def_display->set_update_mode(def_display,
+ OMAP_DSS_UPDATE_AUTO);
+ if (def_display->enable_te)
+ def_display->enable_te(def_display, 1);
+#else
+ if (def_display->set_update_mode)
+ def_display->set_update_mode(def_display,
+ OMAP_DSS_UPDATE_MANUAL);
+ if (def_display->enable_te)
+ def_display->enable_te(def_display, 0);
+#endif
+ } else {
+ if (def_display->set_update_mode)
+ def_display->set_update_mode(def_display,
+ OMAP_DSS_UPDATE_AUTO);
+ }
+
+ for (i = 0; i < fbdev->num_displays; i++) {
+ struct omap_display *display = fbdev->displays[i];
+
+ if (display->update)
+ display->update(display,
+ 0, 0,
+ display->x_res, display->y_res);
+ }
+
+ DBG("display->updated\n");
+
+ omapfb_create_sysfs(fbdev);
+ DBG("sysfs created\n");
+
+ return 0;
+
+cleanup:
+ omapfb_free_resources(fbdev);
+err0:
+ dev_err(&pdev->dev, "failed to setup omapfb\n");
+ return r;
+}
+
+static int omapfb_remove(struct platform_device *pdev)
+{
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+
+ /* FIXME: wait till completion of pending events */
+
+ omapfb_remove_sysfs(fbdev);
+
+ omapfb_free_resources(fbdev);
+
+ return 0;
+}
+
+static struct platform_driver omapfb_driver = {
+ .probe = omapfb_probe,
+ .remove = omapfb_remove,
+ .driver = {
+ .name = "omapfb",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init omapfb_init(void)
+{
+ DBG("omapfb_init\n");
+
+ if (platform_driver_register(&omapfb_driver)) {
+ printk(KERN_ERR "failed to register omapfb driver\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void __exit omapfb_exit(void)
+{
+ DBG("omapfb_exit\n");
+ platform_driver_unregister(&omapfb_driver);
+}
+
+/* late_initcall to let panel/ctrl drivers loaded first.
+ * I guess better option would be a more dynamic approach,
+ * so that omapfb reacts to new panels when they are loaded */
+late_initcall(omapfb_init);
+/*module_init(omapfb_init);*/
+module_exit(omapfb_exit);
+
+MODULE_AUTHOR("Tomi Valkeinen <tom...@no...>");
+MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/omap2/omapfb-sysfs.c b/drivers/video/omap2/omapfb-sysfs.c
new file mode 100644
index 0000000..e01edd1
--- /dev/null
+++ b/drivers/video/omap2/omapfb-sysfs.c
@@ -0,0 +1,833 @@
+/*
+ * linux/drivers/video/omap2/omapfb-sysfs.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tom...@no...>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/fb.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+
+#include <mach/display.h>
+#include <mach/omapfb.h>
+
+#include "omapfb.h"
+
+static int omapfb_attach_framebuffer(struct fb_info *fbi,
+ struct omap_overlay *ovl)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ int i, t;
+ int r;
+
+ if (ofbi->num_overlays >= OMAPFB_MAX_OVL_PER_FB) {
+ dev_err(fbdev->dev, "fb has max number of overlays already\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ofbi->overlays[i] == ovl) {
+ dev_err(fbdev->dev, "fb already attached to overlay\n");
+ return -EINVAL;
+ }
+ }
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
+ for (t = 0; t < ofbi2->num_overlays; t++) {
+ if (ofbi2->overlays[t] == ovl) {
+ dev_err(fbdev->dev, "overlay already in use\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ ofbi->overlays[ofbi->num_overlays++] = ovl;
+
+/*
+ if (ovl->manager && ovl->manager->display)
+ omapfb_adjust_fb(fbi, ovl, 0, 0);
+*/
+ r = omapfb_apply_changes(fbi, 1);
+ if (r)
+ return r;
+
+ if (ovl->manager)
+ ovl->manager->apply(ovl->manager);
+
+ return 0;
+}
+
+static int omapfb_detach_framebuffer(struct fb_info *fbi,
+ struct omap_overlay *ovl)
+{
+ int i;
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ofbi->overlays[i] == ovl)
+ break;
+ }
+
+ if (i == ofbi->num_overlays) {
+ dev_err(fbdev->dev, "cannot detach fb, overlay not attached\n");
+ return -EINVAL;
+ }
+
+ ovl->enable(ovl, 0);
+
+ if (ovl->manager)
+ ovl->manager->apply(ovl->manager);
+
+ for (i = i + 1; i < ofbi->num_overlays; i++)
+ ofbi->overlays[i-1] = ofbi->overlays[i];
+
+ ofbi->num_overlays--;
+
+ return 0;
+}
+
+
+static ssize_t show_framebuffers(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ ssize_t l = 0, size = PAGE_SIZE;
+ int i, t;
+
+ omapfb_lock(fbdev);
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
+
+ l += snprintf(buf + l, size - l, "%d t:", ofbi->id);
+
+ if (ofbi->num_overlays == 0)
+ l += snprintf(buf + l, size - l, "none");
+
+ for (t = 0; t < ofbi->num_overlays; t++) {
+ struct omap_overlay *ovl;
+ ovl = ofbi->overlays[t];
+
+ l += snprintf(buf + l, size - l, "%s%s",
+ t == 0 ? "" : ",",
+ ovl->name);
+ }
+
+ l += snprintf(buf + l, size - l, "\n");
+ }
+
+ omapfb_unlock(fbdev);
+
+ return l;
+}
+
+static struct omap_overlay *find_overlay_by_name(struct omapfb2_device *fbdev,
+ char *name)
+{
+ int i;
+
+ for (i = 0; i < fbdev->num_overlays; i++)
+ if (strcmp(name, fbdev->overlays[i]->name) == 0)
+ return fbdev->overlays[i];
+
+ return NULL;
+}
+
+static struct omap_display *find_display_by_name(struct omapfb2_device *fbdev,
+ char *name)
+{
+ int i;
+
+ for (i = 0; i < fbdev->num_displays; i++)
+ if (strcmp(name, fbdev->displays[i]->name) == 0)
+ return fbdev->displays[i];
+
+ return NULL;
+}
+
+static struct omap_overlay_manager *find_manager_by_name(
+ struct omapfb2_device *fbdev,
+ char *name)
+{
+ int i;
+
+ for (i = 0; i < fbdev->num_managers; i++)
+ if (strcmp(name, fbdev->managers[i]->name) == 0)
+ return fbdev->managers[i];
+
+ return NULL;
+}
+
+static int parse_overlays(struct omapfb2_device *fbdev, char *str,
+ struct omap_overlay *ovls[])
+{
+ int num_ovls = 0;
+ int s, e = 0;
+ char ovlname[10];
+
+ while (1) {
+ struct omap_overlay *ovl;
+
+ s = e;
+
+ while (e < strlen(str) && str[e] != ',')
+ e++;
+
+ strncpy(ovlname, str + s, e - s);
+ ovlname[e-s] = 0;
+
+ DBG("searching for '%s'\n", ovlname);
+ ovl = find_overlay_by_name(fbdev, ovlname);
+
+ if (ovl) {
+ DBG("found an overlay\n");
+ ovls[num_ovls] = ovl;
+ num_ovls++;
+ } else {
+ DBG("unknown overlay %s\n", str);
+ return 0;
+ }
+
+ if (e == strlen(str))
+ break;
+
+ e++;
+ }
+
+ return num_ovls;
+}
+
+static ssize_t store_framebuffers(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ int idx;
+ char fbname[3];
+ unsigned long fbnum;
+ char ovlnames[40];
+ int num_ovls = 0;
+ struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB];
+ struct fb_info *fbi;
+ struct omapfb_info *ofbi;
+ int r, i;
+
+ idx = 0;
+ while (idx < count && buf[idx] != ' ')
+ ++idx;
+
+ if (idx == count)
+ return -EINVAL;
+
+ if (idx >= sizeof(fbname))
+ return -EINVAL;
+
+ strncpy(fbname, buf, idx);
+ fbname[idx] = 0;
+ idx++;
+
+ if (strict_strtoul(fbname, 10, &fbnum))
+ return -EINVAL;
+
+ r = sscanf(buf + idx, "t:%39s", ovlnames);
+
+ if (r != 1) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ omapfb_lock(fbdev);
+
+ if (fbnum >= fbdev->num_fbs) {
+ dev_err(dev, "fb not found\n");
+ r = -EINVAL;
+ goto err;
+ }
+
+ fbi = fbdev->fbs[fbnum];
+ ofbi = FB2OFB(fbi);
+
+ if (strcmp(ovlnames, "none") == 0) {
+ num_ovls = 0;
+ } else {
+ num_ovls = parse_overlays(fbdev, ovlnames, ovls);
+
+ if (num_ovls == 0) {
+ dev_err(dev, "overlays not found\n");
+ r = -EINVAL;
+ goto err;
+ }
+ }
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ r = omapfb_detach_framebuffer(fbi, ofbi->overlays[i]);
+ if (r) {
+ dev_err(dev, "detach failed\n");
+ goto err;
+ }
+ }
+
+ if (num_ovls > 0) {
+ for (i = 0; i < num_ovls; i++) {
+ r = omapfb_attach_framebuffer(fbi, ovls[i]);
+ if (r) {
+ dev_err(dev, "attach failed\n");
+ goto err;
+ }
+ }
+ }
+
+ omapfb_unlock(fbdev);
+ return count;
+
+err:
+ omapfb_unlock(fbdev);
+ return r;
+}
+
+static ssize_t show_overlays(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ ssize_t l = 0, size = PAGE_SIZE;
+ int i, mgr_num;
+
+ omapfb_lock(fbdev);
+
+ for (i = 0; i < fbdev->num_overlays; i++) {
+ struct omap_overlay *ovl;
+ struct omap_overlay_manager *mgr;
+
+ ovl = fbdev->overlays[i];
+ mgr = ovl->manager;
+
+ for (mgr_num = 0; mgr_num < fbdev->num_managers; mgr_num++)
+ if (fbdev->managers[mgr_num] == mgr)
+ break;
+
+ l += snprintf(buf + l, size - l,
+ "%s t:%s x:%d y:%d iw:%d ih:%d w: %d h: %d e:%d\n",
+ ovl->name,
+ mgr ? mgr->name : "none",
+ ovl->info.pos_x,
+ ovl->info.pos_y,
+ ovl->info.width,
+ ovl->info.height,
+ ovl->info.out_width,
+ ovl->info.out_height,
+ ovl->info.enabled);
+ }
+
+ omapfb_unlock(fbdev);
+
+ return l;
+}
+
+static ssize_t store_overlays(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ int idx;
+ struct omap_overlay *ovl = NULL;
+ struct omap_overlay_manager *mgr;
+ int r;
+ char ovlname[10];
+ int posx, posy, outw, outh;
+ int enabled;
+
+ idx = 0;
+ while (idx < count && buf[idx] != ' ')
+ ++idx;
+
+ if (idx == count)
+ return -EINVAL;
+
+ if (idx >= sizeof(ovlname))
+ return -EINVAL;
+
+ strncpy(ovlname, buf, idx);
+ ovlname[idx] = 0;
+ idx++;
+
+ omapfb_lock(fbdev);
+
+ ovl = find_overlay_by_name(fbdev, ovlname);
+
+ if (!ovl) {
+ dev_err(dev, "ovl not found\n");
+ r = -EINVAL;
+ goto err;
+ }
+
+ DBG("ovl %s found\n", ovl->name);
+
+ mgr = ovl->manager;
+
+ posx = ovl->info.pos_x;
+ posy = ovl->info.pos_y;
+ outw = ovl->info.out_width;
+ outh = ovl->info.out_height;
+ enabled = ovl->info.enabled;
+
+ while (idx < count) {
+ char c;
+ int val;
+ int len;
+ char sval[10];
+
+ r = sscanf(buf + idx, "%c:%d%n", &c, &val, &len);
+
+ if (r != 2) {
+ val = 0;
+
+ r = sscanf(buf + idx, "%c:%9s%n", &c, sval, &len);
+
+ if (r != 2) {
+ dev_err(dev, "sscanf failed, aborting\n");
+ r = -EINVAL;
+ goto err;
+ }
+ } else {
+ sval[0] = 0;
+ }
+
+ switch (c) {
+ case 't':
+ if (strcmp(sval, "none") == 0) {
+ mgr = NULL;
+ } else {
+ mgr = find_manager_by_name(fbdev, sval);
+
+ if (mgr == NULL) {
+ dev_err(dev, "no such manager\n");
+ r = -EINVAL;
+ goto err;
+ }
+
+ DBG("manager %s found\n", mgr->name);
+ }
+
+ break;
+
+ case 'x':
+ posx = val;
+ break;
+
+ case 'y':
+ posy = val;
+ break;
+
+ case 'w':
+ if (ovl->caps & OMAP_DSS_OVL_CAP_SCALE)
+ outw = val;
+ break;
+
+ case 'h':
+ if (ovl->caps & OMAP_DSS_OVL_CAP_SCALE)
+ outh = val;
+ break;
+
+ case 'e':
+ enabled = val;
+ break;
+
+ default:
+ dev_err(dev, "unknown option %c\n", c);
+ r = -EINVAL;
+ goto err;
+ }
+
+ idx += len + 1;
+ }
+
+ r = ovl->setup_output(ovl, posx, posy, outw, outh);
+
+ if (r) {
+ dev_err(dev, "setup overlay failed\n");
+ goto err;
+ }
+
+ if (mgr != ovl->manager) {
+ /* detach old manager */
+ if (ovl->manager) {
+ r = ovl->unset_manager(ovl);
+ if (r) {
+ dev_err(dev, "detach failed\n");
+ goto err;
+ }
+ }
+
+ if (mgr) {
+ r = ovl->set_manager(ovl, mgr);
+ if (r) {
+ dev_err(dev, "Failed to attach overlay\n");
+ goto err;
+ }
+ }
+ }
+
+ r = ovl->enable(ovl, enabled);
+
+ if (r) {
+ dev_err(dev, "enable overlay failed\n");
+ goto err;
+ }
+
+ if (mgr) {
+ r = mgr->apply(mgr);
+ if (r) {
+ dev_err(dev, "failed to apply dispc config\n");
+ goto err;
+ }
+ } else {
+ ovl->enable(ovl, 0);
+ }
+
+ if (mgr && mgr->display && mgr->display->update)
+ mgr->display->update(mgr->display,
+ 0, 0,
+ mgr->display->x_res, mgr->display->y_res);
+
+ omapfb_unlock(fbdev);
+ return count;
+
+err:
+ omapfb_unlock(fbdev);
+ return r;
+}
+
+static ssize_t show_managers(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ ssize_t l = 0, size = PAGE_SIZE;
+ int i;
+
+ omapfb_lock(fbdev);
+
+ for (i = 0; i < fbdev->num_managers; i++) {
+ struct omap_display *display;
+ struct omap_overlay_manager *mgr;
+
+ mgr = fbdev->managers[i];
+ display = mgr->display;
+
+ l += snprintf(buf + l, size - l, "%s t:%s\n",
+ mgr->name, display ? display->name : "none");
+ }
+
+ omapfb_unlock(fbdev);
+
+ return l;
+}
+
+static ssize_t store_managers(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ int idx;
+ struct omap_overlay_manager *mgr;
+ struct omap_display *display;
+ char mgrname[10];
+ char displayname[10];
+ int r;
+
+ idx = 0;
+ while (idx < count && buf[idx] != ' ')
+ ++idx;
+
+ if (idx == count)
+ return -EINVAL;
+
+ if (idx >= sizeof(mgrname))
+ return -EINVAL;
+
+ strncpy(mgrname, buf, idx);
+ mgrname[idx] = 0;
+ idx++;
+
+ omapfb_lock(fbdev);
+
+ mgr = find_manager_by_name(fbdev, mgrname);
+
+ if (!mgr) {
+ dev_err(dev, "manager not found\n");
+ r = -EINVAL;
+ goto err;
+ }
+
+ r = sscanf(buf + idx, "t:%9s", displayname);
+
+ if (r != 1) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ if (strcmp(displayname, "none") == 0) {
+ display = NULL;
+ } else {
+ display = find_display_by_name(fbdev, displayname);
+
+ if (!display) {
+ dev_err(dev, "display not found\n");
+ r = -EINVAL;
+ goto err;
+ }
+ }
+
+ if (mgr->display) {
+ r = mgr->unset_display(mgr);
+ if (r) {
+ dev_err(dev, "failed to unset display\n");
+ goto err;
+ }
+ }
+
+ if (display) {
+ r = mgr->set_display(mgr, display);
+ if (r) {
+ dev_err(dev, "failed to set manager\n");
+ goto err;
+ }
+
+ r = mgr->apply(mgr);
+ if (r) {
+ dev_err(dev, "failed to apply dispc config\n");
+ goto err;
+ }
+ }
+
+ omapfb_unlock(fbdev);
+ return count;
+
+err:
+ omapfb_unlock(fbdev);
+ return r;
+}
+
+static ssize_t show_displays(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ ssize_t l = 0, size = PAGE_SIZE;
+ int i;
+
+ omapfb_lock(fbdev);
+
+ for (i = 0; i < fbdev->num_displays; i++) {
+ struct omap_display *display;
+ enum omap_dss_update_mode mode = -1;
+ int te = 0;
+
+ display = fbdev->displays[i];
+
+ if (display->get_update_mode)
+ mode = display->get_update_mode(display);
+
+ if (display->get_te)
+ te = display->get_te(display);
+
+ l += snprintf(buf + l, size - l,
+ "%s w:%d h:%d e:%d u:%d t:%d\n",
+ display->name,
+ display->x_res,
+ display->y_res,
+ display->state != OMAP_DSS_DISPLAY_DISABLED,
+ mode, te);
+ }
+
+ omapfb_unlock(fbdev);
+
+ return l;
+}
+
+static ssize_t store_displays(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+ int idx;
+ int enable, width, height;
+ enum omap_dss_update_mode mode;
+ struct omap_display *display = NULL;
+ int r;
+ char displayname[10];
+ int te;
+
+ idx = 0;
+ while (idx < count && buf[idx] != ' ')
+ ++idx;
+
+ if (idx == count)
+ return -EINVAL;
+
+ if (idx >= sizeof(displayname))
+ return -EINVAL;
+
+ strncpy(displayname, buf, idx);
+ displayname[idx] = 0;
+ idx++;
+
+ omapfb_lock(fbdev);
+
+ display = find_display_by_name(fbdev, displayname);
+
+ if (!display) {
+ dev_err(dev, "display not found\n");
+ r = -EINVAL;
+ goto err;
+ }
+
+ width = display->x_res;
+ height = display->y_res;
+ enable = display->state != OMAP_DSS_DISPLAY_DISABLED;
+ if (display->get_update_mode)
+ mode = display->get_update_mode(display);
+ else
+ mode = 0;
+
+ if (display->get_te)
+ te = display->get_te(display);
+ else
+ te = 0;
+
+ while (idx < count) {
+ char c;
+ int val;
+ int len;
+
+ r = sscanf(buf + idx, "%c:%d%n", &c, &val, &len);
+
+ if (r != 2) {
+ dev_err(dev, "sscanf failed, aborting\n");
+ r = -EINVAL;
+ goto err;
+ }
+
+ switch (c) {
+ case 'w':
+ width = val;
+ break;
+
+ case 'h':
+ height = val;
+ break;
+
+ case 'e':
+ enable = val;
+ break;
+
+ case 'u':
+ mode = val;
+ break;
+
+ case 't':
+ te = val;
+ break;
+
+ default:
+ dev_err(dev, "unknown option %c\n", c);
+ r = -EINVAL;
+ goto err;
+ }
+
+ idx += len + 1;
+ }
+
+ /* XXX: setmode */
+ if (enable != (display->state != OMAP_DSS_DISPLAY_DISABLED)) {
+ i...
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