2009-08-07 17:43:20 +07:00
|
|
|
/*
|
|
|
|
* linux/drivers/video/omap2/dss/overlay.c
|
|
|
|
*
|
|
|
|
* Copyright (C) 2009 Nokia Corporation
|
|
|
|
* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
|
|
|
|
*
|
|
|
|
* 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/>.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define DSS_SUBSYS_NAME "OVERLAY"
|
|
|
|
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/err.h>
|
|
|
|
#include <linux/sysfs.h>
|
|
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <linux/delay.h>
|
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 15:04:11 +07:00
|
|
|
#include <linux/slab.h>
|
2009-08-07 17:43:20 +07:00
|
|
|
|
2011-05-11 18:05:07 +07:00
|
|
|
#include <video/omapdss.h>
|
2009-08-07 17:43:20 +07:00
|
|
|
|
|
|
|
#include "dss.h"
|
2010-09-15 20:50:00 +07:00
|
|
|
#include "dss_features.h"
|
2009-08-07 17:43:20 +07:00
|
|
|
|
|
|
|
static int num_overlays;
|
2011-11-05 15:39:59 +07:00
|
|
|
static struct omap_overlay *overlays;
|
2009-08-07 17:43:20 +07:00
|
|
|
|
2012-09-07 19:14:51 +07:00
|
|
|
static inline struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
|
|
|
|
{
|
2012-06-05 20:03:28 +07:00
|
|
|
return ovl->manager ?
|
|
|
|
(ovl->manager->output ? ovl->manager->output->device : NULL) :
|
|
|
|
NULL;
|
2012-09-07 19:14:51 +07:00
|
|
|
}
|
|
|
|
|
2009-08-07 17:43:20 +07:00
|
|
|
int omap_dss_get_num_overlays(void)
|
|
|
|
{
|
|
|
|
return num_overlays;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_dss_get_num_overlays);
|
|
|
|
|
|
|
|
struct omap_overlay *omap_dss_get_overlay(int num)
|
|
|
|
{
|
2011-11-05 15:39:59 +07:00
|
|
|
if (num >= num_overlays)
|
|
|
|
return NULL;
|
2009-08-07 17:43:20 +07:00
|
|
|
|
2011-11-05 15:39:59 +07:00
|
|
|
return &overlays[num];
|
2009-08-07 17:43:20 +07:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_dss_get_overlay);
|
|
|
|
|
|
|
|
void dss_init_overlays(struct platform_device *pdev)
|
|
|
|
{
|
|
|
|
int i, r;
|
|
|
|
|
2011-11-05 15:39:59 +07:00
|
|
|
num_overlays = dss_feat_get_num_ovls();
|
2009-08-07 17:43:20 +07:00
|
|
|
|
2011-11-05 15:39:59 +07:00
|
|
|
overlays = kzalloc(sizeof(struct omap_overlay) * num_overlays,
|
|
|
|
GFP_KERNEL);
|
2009-08-07 17:43:20 +07:00
|
|
|
|
2011-11-05 15:39:59 +07:00
|
|
|
BUG_ON(overlays == NULL);
|
2009-08-07 17:43:20 +07:00
|
|
|
|
2011-11-05 15:39:59 +07:00
|
|
|
for (i = 0; i < num_overlays; ++i) {
|
|
|
|
struct omap_overlay *ovl = &overlays[i];
|
2009-08-07 17:43:20 +07:00
|
|
|
|
|
|
|
switch (i) {
|
|
|
|
case 0:
|
|
|
|
ovl->name = "gfx";
|
|
|
|
ovl->id = OMAP_DSS_GFX;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
ovl->name = "vid1";
|
|
|
|
ovl->id = OMAP_DSS_VIDEO1;
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
ovl->name = "vid2";
|
|
|
|
ovl->id = OMAP_DSS_VIDEO2;
|
|
|
|
break;
|
2011-09-13 19:50:33 +07:00
|
|
|
case 3:
|
|
|
|
ovl->name = "vid3";
|
|
|
|
ovl->id = OMAP_DSS_VIDEO3;
|
|
|
|
break;
|
2009-08-07 17:43:20 +07:00
|
|
|
}
|
|
|
|
|
OMAPDSS: APPLY: rewrite overlay enable/disable
Overlays are currently enabled and disabled with a boolean in the struct
omap_overlay_info. The overlay info is set with ovl->set_overlay_info(),
and made into use with mgr->apply().
This doesn't work properly, as the enable/disable status may affect also
other overlays, for example when using fifo-merge. Thus the enabling and
disabling of the overlay needs to be done outside the normal overlay
configuration.
This patch achieves that by doing the following things:
1) Add function pointers to struct omap_overlay: enable(), disable() and
is_enabled(). These are used to do the obvious. The functions may block.
2) Move the "enabled" field from struct omap_overlay to ovl_priv_data.
3) Add a new route for settings to be applied to the HW, called
"extra_info". The status of the normal info and extra_info are tracked
separately.
The point here is to allow the normal info to be changed and
applied in non-blocking matter, whereas the extra_info can only be
changed when holding the mutex. This makes it possible to, for example,
set the overlay enable flag, apply it, and wait until the HW has taken
the flag into use.
This is not possible if the enable flag would be in the normal info, as
a new value for the flag could be set at any time from the users of
omapdss.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-11-15 21:37:53 +07:00
|
|
|
ovl->is_enabled = &dss_ovl_is_enabled;
|
|
|
|
ovl->enable = &dss_ovl_enable;
|
|
|
|
ovl->disable = &dss_ovl_disable;
|
2011-11-15 17:11:11 +07:00
|
|
|
ovl->set_manager = &dss_ovl_set_manager;
|
|
|
|
ovl->unset_manager = &dss_ovl_unset_manager;
|
|
|
|
ovl->set_overlay_info = &dss_ovl_set_info;
|
|
|
|
ovl->get_overlay_info = &dss_ovl_get_info;
|
2011-11-04 18:00:10 +07:00
|
|
|
ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
|
2012-09-07 19:14:51 +07:00
|
|
|
ovl->get_device = &dss_ovl_get_device;
|
2009-08-07 17:43:20 +07:00
|
|
|
|
2011-08-15 19:18:15 +07:00
|
|
|
ovl->caps = dss_feat_get_overlay_caps(ovl->id);
|
2010-09-15 20:50:00 +07:00
|
|
|
ovl->supported_modes =
|
|
|
|
dss_feat_get_supported_color_modes(ovl->id);
|
|
|
|
|
2012-08-06 18:40:00 +07:00
|
|
|
r = dss_overlay_kobj_init(ovl, pdev);
|
2011-11-05 15:39:59 +07:00
|
|
|
if (r)
|
2009-08-07 17:43:20 +07:00
|
|
|
DSSERR("failed to create sysfs file\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void dss_uninit_overlays(struct platform_device *pdev)
|
|
|
|
{
|
2011-11-05 15:39:59 +07:00
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < num_overlays; ++i) {
|
|
|
|
struct omap_overlay *ovl = &overlays[i];
|
2012-08-06 18:40:00 +07:00
|
|
|
dss_overlay_kobj_uninit(ovl);
|
2009-08-07 17:43:20 +07:00
|
|
|
}
|
|
|
|
|
2011-11-05 15:39:59 +07:00
|
|
|
kfree(overlays);
|
|
|
|
overlays = NULL;
|
2009-08-07 17:43:20 +07:00
|
|
|
num_overlays = 0;
|
|
|
|
}
|
|
|
|
|
2011-12-13 18:18:52 +07:00
|
|
|
int dss_ovl_simple_check(struct omap_overlay *ovl,
|
|
|
|
const struct omap_overlay_info *info)
|
|
|
|
{
|
|
|
|
if (info->paddr == 0) {
|
|
|
|
DSSERR("check_overlay: paddr cannot be 0\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
|
|
|
|
if (info->out_width != 0 && info->width != info->out_width) {
|
|
|
|
DSSERR("check_overlay: overlay %d doesn't support "
|
|
|
|
"scaling\n", ovl->id);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (info->out_height != 0 && info->height != info->out_height) {
|
|
|
|
DSSERR("check_overlay: overlay %d doesn't support "
|
|
|
|
"scaling\n", ovl->id);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((ovl->supported_modes & info->color_mode) == 0) {
|
|
|
|
DSSERR("check_overlay: overlay %d doesn't support mode %d\n",
|
|
|
|
ovl->id, info->color_mode);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (info->zorder >= omap_dss_get_num_overlays()) {
|
|
|
|
DSSERR("check_overlay: zorder %d too high\n", info->zorder);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2012-05-11 20:49:55 +07:00
|
|
|
if (dss_feat_rotation_type_supported(info->rotation_type) == 0) {
|
|
|
|
DSSERR("check_overlay: rotation type %d not supported\n",
|
|
|
|
info->rotation_type);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2011-12-13 18:18:52 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-04-27 02:52:28 +07:00
|
|
|
int dss_ovl_check(struct omap_overlay *ovl, struct omap_overlay_info *info,
|
|
|
|
const struct omap_video_timings *mgr_timings)
|
2011-12-08 15:32:37 +07:00
|
|
|
{
|
|
|
|
u16 outw, outh;
|
|
|
|
u16 dw, dh;
|
|
|
|
|
2012-04-27 02:52:28 +07:00
|
|
|
dw = mgr_timings->x_res;
|
|
|
|
dh = mgr_timings->y_res;
|
2011-12-08 15:32:37 +07:00
|
|
|
|
|
|
|
if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
|
|
|
|
outw = info->width;
|
|
|
|
outh = info->height;
|
|
|
|
} else {
|
|
|
|
if (info->out_width == 0)
|
|
|
|
outw = info->width;
|
|
|
|
else
|
|
|
|
outw = info->out_width;
|
|
|
|
|
|
|
|
if (info->out_height == 0)
|
|
|
|
outh = info->height;
|
|
|
|
else
|
|
|
|
outh = info->out_height;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dw < info->pos_x + outw) {
|
|
|
|
DSSERR("overlay %d horizontally not inside the display area "
|
|
|
|
"(%d + %d >= %d)\n",
|
|
|
|
ovl->id, info->pos_x, outw, dw);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dh < info->pos_y + outh) {
|
|
|
|
DSSERR("overlay %d vertically not inside the display area "
|
|
|
|
"(%d + %d >= %d)\n",
|
|
|
|
ovl->id, info->pos_y, outh, dh);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2012-06-25 16:28:48 +07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Checks if replication logic should be used. Only use when overlay is in
|
|
|
|
* RGB12U or RGB16 mode, and video port width interface is 18bpp or 24bpp
|
|
|
|
*/
|
|
|
|
bool dss_ovl_use_replication(struct dss_lcd_mgr_config config,
|
|
|
|
enum omap_color_mode mode)
|
|
|
|
{
|
|
|
|
if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
return config.video_port_width > 16;
|
|
|
|
}
|