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[media] v4l: vsp1: Support runtime modification of controls 

Controls are applied to the hardware in the configure operation of the
VSP entities, which is only called when starting the video stream. To
enable runtime modification of controls we need to call the configure
operations for every frame. Doing so is currently not safe, as most
parameters shouldn't be modified during streaming. Furthermore the
configure operation can sleep, preventing it from being called from the
frame completion interrupt handler for the next frame.

Fix this by adding an argument to the configure operation to tell
entities whether to perform a full configuration (as done now) or a
partial runtime configuration. In the latter case the operation will
only configure the subset of parameters related to runtime-configurable
controls, and won't be allowed to sleep when doing so.

Because partial reconfiguration can depend on parameters computed when
performing a full configuration, the core guarantees that the configure
operation will always be called with full and partial modes in that
order at stream start. Entities thus don't have to duplicate
configuration steps in the full and partial code paths.

This change affects the VSP driver core only, all entities return
immediately from the configure operation when called for a partial
runtime configuration. Entities will be modified one by one in further
commits.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Laurent Pinchart 2016-06-11 04:07:56 -03:00 committed by Mauro Carvalho Chehab
parent 1fd87bf2f3
commit fc845e520b
12 changed files with 48 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/media/platform/vsp1/vsp1_bru.c
View File

@ -269,13 +269,16 @@ static const struct v4l2_subdev_ops bru_ops = {
static void bru_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_bru *bru = to_bru(&entity->subdev);
struct v4l2_mbus_framefmt *format;
unsigned int flags;
unsigned int i;
if (!full)
return;
format = vsp1_entity_get_pad_format(&bru->entity, bru->entity.config,
bru->entity.source_pad);

5
drivers/media/platform/vsp1/vsp1_clu.c
View File

@ -205,12 +205,15 @@ static const struct v4l2_subdev_ops clu_ops = {
static void clu_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_clu *clu = to_clu(&entity->subdev);
struct v4l2_mbus_framefmt *format;
u32 ctrl = VI6_CLU_CTRL_AAI | VI6_CLU_CTRL_MVS | VI6_CLU_CTRL_EN;
if (!full)
return;
format = vsp1_entity_get_pad_format(&clu->entity, clu->entity.config,
CLU_PAD_SINK);

6
drivers/media/platform/vsp1/vsp1_drm.c
View File

@ -491,8 +491,10 @@ void vsp1_du_atomic_flush(struct device *dev)
vsp1_entity_route_setup(entity, pipe->dl);
if (entity->ops->configure)
entity->ops->configure(entity, pipe, pipe->dl);
if (entity->ops->configure) {
entity->ops->configure(entity, pipe, pipe->dl, true);
entity->ops->configure(entity, pipe, pipe->dl, false);
}
/* The memory buffer address must be applied after configuring
* the RPF to make sure the crop offset are computed.

2
drivers/media/platform/vsp1/vsp1_entity.h
View File

@ -73,7 +73,7 @@ struct vsp1_entity_operations {
void (*destroy)(struct vsp1_entity *);
void (*set_memory)(struct vsp1_entity *, struct vsp1_dl_list *dl);
void (*configure)(struct vsp1_entity *, struct vsp1_pipeline *,
struct vsp1_dl_list *);
struct vsp1_dl_list *, bool);
};
struct vsp1_entity {

5
drivers/media/platform/vsp1/vsp1_hsit.c
View File

@ -125,10 +125,13 @@ static const struct v4l2_subdev_ops hsit_ops = {
static void hsit_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_hsit *hsit = to_hsit(&entity->subdev);
if (!full)
return;
if (hsit->inverse)
vsp1_hsit_write(hsit, dl, VI6_HSI_CTRL, VI6_HSI_CTRL_EN);
else

5
drivers/media/platform/vsp1/vsp1_lif.c
View File

@ -122,7 +122,7 @@ static const struct v4l2_subdev_ops lif_ops = {
static void lif_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
const struct v4l2_mbus_framefmt *format;
struct vsp1_lif *lif = to_lif(&entity->subdev);
@ -130,6 +130,9 @@ static void lif_configure(struct vsp1_entity *entity,
unsigned int obth = 400;
unsigned int lbth = 200;
if (!full)
return;
format = vsp1_entity_get_pad_format(&lif->entity, lif->entity.config,
LIF_PAD_SOURCE);

5
drivers/media/platform/vsp1/vsp1_lut.c
View File

@ -181,10 +181,13 @@ static const struct v4l2_subdev_ops lut_ops = {
static void lut_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_lut *lut = to_lut(&entity->subdev);
if (!full)
return;
vsp1_lut_write(lut, dl, VI6_LUT_CTRL, VI6_LUT_CTRL_EN);
mutex_lock(lut->ctrls.lock);

5
drivers/media/platform/vsp1/vsp1_rpf.c
View File

@ -60,7 +60,7 @@ static void rpf_set_memory(struct vsp1_entity *entity, struct vsp1_dl_list *dl)
static void rpf_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
const struct vsp1_format_info *fmtinfo = rpf->fmtinfo;
@ -73,6 +73,9 @@ static void rpf_configure(struct vsp1_entity *entity,
u32 pstride;
u32 infmt;
if (!full)
return;
/* Source size, stride and crop offsets.
*
* The crop offsets correspond to the location of the crop rectangle top

5
drivers/media/platform/vsp1/vsp1_sru.c
View File

@ -257,7 +257,7 @@ static const struct v4l2_subdev_ops sru_ops = {
static void sru_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
const struct vsp1_sru_param *param;
struct vsp1_sru *sru = to_sru(&entity->subdev);
@ -265,6 +265,9 @@ static void sru_configure(struct vsp1_entity *entity,
struct v4l2_mbus_framefmt *output;
u32 ctrl0;
if (!full)
return;
input = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,
SRU_PAD_SINK);
output = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,

5
drivers/media/platform/vsp1/vsp1_uds.c
View File

@ -244,7 +244,7 @@ static const struct v4l2_subdev_ops uds_ops = {
static void uds_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_uds *uds = to_uds(&entity->subdev);
const struct v4l2_mbus_framefmt *output;
@ -253,6 +253,9 @@ static void uds_configure(struct vsp1_entity *entity,
unsigned int vscale;
bool multitap;
if (!full)
return;
input = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
UDS_PAD_SINK);
output = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,

8
drivers/media/platform/vsp1/vsp1_video.c
View File

@ -251,11 +251,17 @@ static void vsp1_video_frame_end(struct vsp1_pipeline *pipe,
static void vsp1_video_pipeline_run(struct vsp1_pipeline *pipe)
{
struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
struct vsp1_entity *entity;
unsigned int i;
if (!pipe->dl)
pipe->dl = vsp1_dl_list_get(pipe->output->dlm);
list_for_each_entry(entity, &pipe->entities, list_pipe) {
if (entity->ops->configure)
entity->ops->configure(entity, pipe, pipe->dl, false);
}
for (i = 0; i < vsp1->info->rpf_count; ++i) {
struct vsp1_rwpf *rwpf = pipe->inputs[i];
@ -632,7 +638,7 @@ static int vsp1_video_setup_pipeline(struct vsp1_pipeline *pipe)
vsp1_entity_route_setup(entity, pipe->dl);
if (entity->ops->configure)
entity->ops->configure(entity, pipe, pipe->dl);
entity->ops->configure(entity, pipe, pipe->dl, true);
}
return 0;

5
drivers/media/platform/vsp1/vsp1_wpf.c
View File

@ -93,7 +93,7 @@ static void wpf_set_memory(struct vsp1_entity *entity, struct vsp1_dl_list *dl)
static void wpf_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_rwpf *wpf = to_rwpf(&entity->subdev);
struct vsp1_device *vsp1 = wpf->entity.vsp1;
@ -104,6 +104,9 @@ static void wpf_configure(struct vsp1_entity *entity,
u32 outfmt = 0;
u32 srcrpf = 0;
if (!full)
return;
/* Cropping */
crop = vsp1_rwpf_get_crop(wpf, wpf->entity.config);