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authorHans Verkuil <hans.verkuil@cisco.com>2013-08-19 18:21:50 +0400
committerMauro Carvalho Chehab <m.chehab@samsung.com>2013-08-24 11:30:01 +0400
commitb8f0fff4279a1b85fa4b6d7d8b538c254edcb4a1 (patch)
tree9ab3d196fe8e7633baa8b7bb6726af43d8187710 /drivers
parent70b654945bacd27622ef1c424f054ae04de597e0 (diff)
downloadlinux-b8f0fff4279a1b85fa4b6d7d8b538c254edcb4a1.tar.xz
[media] v4l2-dv-timings: add callback to handle exceptions
In most cases the v4l2_bt_timings_cap struct has all the information necessary to determine valid timings, but occasionally there are exceptions. Add a callback function to be able to test for those exceptions. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/i2c/ad9389b.c7
-rw-r--r--drivers/media/i2c/ths8200.c9
-rw-r--r--drivers/media/v4l2-core/v4l2-dv-timings.c25
3 files changed, 27 insertions, 14 deletions
diff --git a/drivers/media/i2c/ad9389b.c b/drivers/media/i2c/ad9389b.c
index fc608516fc43..836978602973 100644
--- a/drivers/media/i2c/ad9389b.c
+++ b/drivers/media/i2c/ad9389b.c
@@ -648,12 +648,12 @@ static int ad9389b_s_dv_timings(struct v4l2_subdev *sd,
v4l2_dbg(1, debug, sd, "%s:\n", __func__);
/* quick sanity check */
- if (!v4l2_valid_dv_timings(timings, &ad9389b_timings_cap))
+ if (!v4l2_valid_dv_timings(timings, &ad9389b_timings_cap, NULL, NULL))
return -EINVAL;
/* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
if the format is one of the CEA or DMT timings. */
- v4l2_find_dv_timings_cap(timings, &ad9389b_timings_cap, 0);
+ v4l2_find_dv_timings_cap(timings, &ad9389b_timings_cap, 0, NULL, NULL);
timings->bt.flags &= ~V4L2_DV_FL_REDUCED_FPS;
@@ -691,7 +691,8 @@ static int ad9389b_g_dv_timings(struct v4l2_subdev *sd,
static int ad9389b_enum_dv_timings(struct v4l2_subdev *sd,
struct v4l2_enum_dv_timings *timings)
{
- return v4l2_enum_dv_timings_cap(timings, &ad9389b_timings_cap);
+ return v4l2_enum_dv_timings_cap(timings, &ad9389b_timings_cap,
+ NULL, NULL);
}
static int ad9389b_dv_timings_cap(struct v4l2_subdev *sd,
diff --git a/drivers/media/i2c/ths8200.c b/drivers/media/i2c/ths8200.c
index 6abf0fb36079..a58a8f663ffb 100644
--- a/drivers/media/i2c/ths8200.c
+++ b/drivers/media/i2c/ths8200.c
@@ -378,10 +378,12 @@ static int ths8200_s_dv_timings(struct v4l2_subdev *sd,
v4l2_dbg(1, debug, sd, "%s:\n", __func__);
- if (!v4l2_valid_dv_timings(timings, &ths8200_timings_cap))
+ if (!v4l2_valid_dv_timings(timings, &ths8200_timings_cap,
+ NULL, NULL))
return -EINVAL;
- if (!v4l2_find_dv_timings_cap(timings, &ths8200_timings_cap, 10)) {
+ if (!v4l2_find_dv_timings_cap(timings, &ths8200_timings_cap, 10,
+ NULL, NULL)) {
v4l2_dbg(1, debug, sd, "Unsupported format\n");
return -EINVAL;
}
@@ -411,7 +413,8 @@ static int ths8200_g_dv_timings(struct v4l2_subdev *sd,
static int ths8200_enum_dv_timings(struct v4l2_subdev *sd,
struct v4l2_enum_dv_timings *timings)
{
- return v4l2_enum_dv_timings_cap(timings, &ths8200_timings_cap);
+ return v4l2_enum_dv_timings_cap(timings, &ths8200_timings_cap,
+ NULL, NULL);
}
static int ths8200_dv_timings_cap(struct v4l2_subdev *sd,
diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c
index a77f20145881..ee52b9f4a944 100644
--- a/drivers/media/v4l2-core/v4l2-dv-timings.c
+++ b/drivers/media/v4l2-core/v4l2-dv-timings.c
@@ -132,7 +132,9 @@ const struct v4l2_dv_timings v4l2_dv_timings_presets[] = {
EXPORT_SYMBOL_GPL(v4l2_dv_timings_presets);
bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *t,
- const struct v4l2_dv_timings_cap *dvcap)
+ const struct v4l2_dv_timings_cap *dvcap,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle)
{
const struct v4l2_bt_timings *bt = &t->bt;
const struct v4l2_bt_timings_cap *cap = &dvcap->bt;
@@ -151,18 +153,21 @@ bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *t,
(bt->interlaced && !(caps & V4L2_DV_BT_CAP_INTERLACED)) ||
(!bt->interlaced && !(caps & V4L2_DV_BT_CAP_PROGRESSIVE)))
return false;
- return true;
+ return fnc == NULL || fnc(t, fnc_handle);
}
EXPORT_SYMBOL_GPL(v4l2_valid_dv_timings);
int v4l2_enum_dv_timings_cap(struct v4l2_enum_dv_timings *t,
- const struct v4l2_dv_timings_cap *cap)
+ const struct v4l2_dv_timings_cap *cap,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle)
{
u32 i, idx;
memset(t->reserved, 0, sizeof(t->reserved));
for (i = idx = 0; v4l2_dv_timings_presets[i].bt.width; i++) {
- if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap) &&
+ if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap,
+ fnc, fnc_handle) &&
idx++ == t->index) {
t->timings = v4l2_dv_timings_presets[i];
return 0;
@@ -174,16 +179,20 @@ EXPORT_SYMBOL_GPL(v4l2_enum_dv_timings_cap);
bool v4l2_find_dv_timings_cap(struct v4l2_dv_timings *t,
const struct v4l2_dv_timings_cap *cap,
- unsigned pclock_delta)
+ unsigned pclock_delta,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle)
{
int i;
- if (!v4l2_valid_dv_timings(t, cap))
+ if (!v4l2_valid_dv_timings(t, cap, fnc, fnc_handle))
return false;
for (i = 0; i < v4l2_dv_timings_presets[i].bt.width; i++) {
- if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap) &&
- v4l2_match_dv_timings(t, v4l2_dv_timings_presets + i, pclock_delta)) {
+ if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap,
+ fnc, fnc_handle) &&
+ v4l2_match_dv_timings(t, v4l2_dv_timings_presets + i,
+ pclock_delta)) {
*t = v4l2_dv_timings_presets[i];
return true;
}