The type ops for equal, init and validate have an elems argument,
but this can be taken from struct v4l2_ctrl: ctrl->elems for
equal and init, and ctrl->new_elems for validate (since you are
validating a new control value).
So drop this argument and update all callers.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
---
drivers/media/platform/nxp/dw100/dw100.c | 4 ++--
drivers/media/v4l2-core/v4l2-ctrls-api.c | 8 +++----
drivers/media/v4l2-core/v4l2-ctrls-core.c | 19 +++++++--------
include/media/v4l2-ctrls.h | 28 +++++++++--------------
4 files changed, 27 insertions(+), 32 deletions(-)
diff --git a/drivers/media/platform/nxp/dw100/dw100.c b/drivers/media/platform/nxp/dw100/dw100.c
index 94518f0e486b..87ad036c3dbf 100644
--- a/drivers/media/platform/nxp/dw100/dw100.c
+++ b/drivers/media/platform/nxp/dw100/dw100.c
@@ -373,7 +373,7 @@ static const struct v4l2_ctrl_ops dw100_ctrl_ops = {
* The coordinates are saved in UQ12.4 fixed point format.
*/
static void dw100_ctrl_dewarping_map_init(const struct v4l2_ctrl *ctrl,
- u32 from_idx, u32 elems,
+ u32 from_idx,
union v4l2_ctrl_ptr ptr)
{
struct dw100_ctx *ctx =
@@ -398,7 +398,7 @@ static void dw100_ctrl_dewarping_map_init(const struct v4l2_ctrl *ctrl,
ctx->map_height = mh;
ctx->map_size = mh * mw * sizeof(u32);
- for (idx = from_idx; idx < elems; idx++) {
+ for (idx = from_idx; idx < ctrl->elems; idx++) {
qy = min_t(u32, (idx / mw) * qdy, qsh);
qx = min_t(u32, (idx % mw) * qdx, qsw);
map[idx] = dw100_map_format_coordinates(qx, qy);
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-api.c b/drivers/media/v4l2-core/v4l2-ctrls-api.c
index a8c354ad3d23..d0a3aa3806fb 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-api.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-api.c
@@ -89,7 +89,7 @@ static int req_to_user(struct v4l2_ext_control *c,
/* Helper function: copy the initial control value back to the caller */
static int def_to_user(struct v4l2_ext_control *c, struct v4l2_ctrl *ctrl)
{
- ctrl->type_ops->init(ctrl, 0, ctrl->elems, ctrl->p_new);
+ ctrl->type_ops->init(ctrl, 0, ctrl->p_new);
return ptr_to_user(c, ctrl, ctrl->p_new);
}
@@ -126,7 +126,7 @@ static int user_to_new(struct v4l2_ext_control *c, struct v4l2_ctrl *ctrl)
if (ctrl->is_dyn_array)
ctrl->new_elems = elems;
else if (ctrl->is_array)
- ctrl->type_ops->init(ctrl, elems, ctrl->elems, ctrl->p_new);
+ ctrl->type_ops->init(ctrl, elems, ctrl->p_new);
return 0;
}
@@ -494,7 +494,7 @@ EXPORT_SYMBOL(v4l2_g_ext_ctrls);
/* Validate a new control */
static int validate_new(const struct v4l2_ctrl *ctrl, union v4l2_ctrl_ptr p_new)
{
- return ctrl->type_ops->validate(ctrl, ctrl->new_elems, p_new);
+ return ctrl->type_ops->validate(ctrl, p_new);
}
/* Validate controls. */
@@ -1007,7 +1007,7 @@ int __v4l2_ctrl_modify_dimensions(struct v4l2_ctrl *ctrl,
ctrl->p_cur.p = p_array + elems * ctrl->elem_size;
for (i = 0; i < ctrl->nr_of_dims; i++)
ctrl->dims[i] = dims[i];
- ctrl->type_ops->init(ctrl, 0, elems, ctrl->p_cur);
+ ctrl->type_ops->init(ctrl, 0, ctrl->p_cur);
cur_to_new(ctrl);
send_event(NULL, ctrl, V4L2_EVENT_CTRL_CH_VALUE |
V4L2_EVENT_CTRL_CH_DIMENSIONS);
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-core.c b/drivers/media/v4l2-core/v4l2-ctrls-core.c
index 01f00093f259..0dab1d7b90f0 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-core.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-core.c
@@ -65,7 +65,7 @@ void send_event(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 changes)
v4l2_event_queue_fh(sev->fh, &ev);
}
-bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl, u32 elems,
+bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl,
union v4l2_ctrl_ptr ptr1, union v4l2_ctrl_ptr ptr2)
{
unsigned int i;
@@ -74,7 +74,7 @@ bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl, u32 elems,
case V4L2_CTRL_TYPE_BUTTON:
return false;
case V4L2_CTRL_TYPE_STRING:
- for (i = 0; i < elems; i++) {
+ for (i = 0; i < ctrl->elems; i++) {
unsigned int idx = i * ctrl->elem_size;
/* strings are always 0-terminated */
@@ -84,7 +84,7 @@ bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl, u32 elems,
return true;
default:
return !memcmp(ptr1.p_const, ptr2.p_const,
- elems * ctrl->elem_size);
+ ctrl->elems * ctrl->elem_size);
}
}
EXPORT_SYMBOL(v4l2_ctrl_type_op_equal);
@@ -178,9 +178,10 @@ static void std_init_compound(const struct v4l2_ctrl *ctrl, u32 idx,
}
void v4l2_ctrl_type_op_init(const struct v4l2_ctrl *ctrl, u32 from_idx,
- u32 tot_elems, union v4l2_ctrl_ptr ptr)
+ union v4l2_ctrl_ptr ptr)
{
unsigned int i;
+ u32 tot_elems = ctrl->elems;
u32 elems = tot_elems - from_idx;
if (from_idx >= tot_elems)
@@ -995,7 +996,7 @@ static int std_validate_elem(const struct v4l2_ctrl *ctrl, u32 idx,
}
}
-int v4l2_ctrl_type_op_validate(const struct v4l2_ctrl *ctrl, u32 elems,
+int v4l2_ctrl_type_op_validate(const struct v4l2_ctrl *ctrl,
union v4l2_ctrl_ptr ptr)
{
unsigned int i;
@@ -1017,11 +1018,11 @@ int v4l2_ctrl_type_op_validate(const struct v4l2_ctrl *ctrl, u32 elems,
case V4L2_CTRL_TYPE_BUTTON:
case V4L2_CTRL_TYPE_CTRL_CLASS:
- memset(ptr.p_s32, 0, elems * sizeof(s32));
+ memset(ptr.p_s32, 0, ctrl->new_elems * sizeof(s32));
return 0;
}
- for (i = 0; !ret && i < elems; i++)
+ for (i = 0; !ret && i < ctrl->new_elems; i++)
ret = std_validate_elem(ctrl, i, ptr);
return ret;
}
@@ -1724,7 +1725,7 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
memcpy(ctrl->p_def.p, p_def.p_const, elem_size);
}
- ctrl->type_ops->init(ctrl, 0, elems, ctrl->p_cur);
+ ctrl->type_ops->init(ctrl, 0, ctrl->p_cur);
cur_to_new(ctrl);
if (handler_new_ref(hdl, ctrl, NULL, false, false)) {
@@ -2069,7 +2070,7 @@ static int cluster_changed(struct v4l2_ctrl *master)
ctrl_changed = true;
if (!ctrl_changed)
ctrl_changed = !ctrl->type_ops->equal(ctrl,
- ctrl->elems, ctrl->p_cur, ctrl->p_new);
+ ctrl->p_cur, ctrl->p_new);
ctrl->has_changed = ctrl_changed;
changed |= ctrl->has_changed;
}
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index b76a0714d425..e59d9a234631 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -121,21 +121,19 @@ struct v4l2_ctrl_ops {
* struct v4l2_ctrl_type_ops - The control type operations that the driver
* has to provide.
*
- * @equal: return true if both values are equal.
- * @init: initialize the value.
+ * @equal: return true if all ctrl->elems array elements are equal.
+ * @init: initialize the value for array elements from from_idx to ctrl->elems.
* @log: log the value.
- * @validate: validate the value. Return 0 on success and a negative value
- * otherwise.
+ * @validate: validate the value for ctrl->new_elems array elements.
+ * Return 0 on success and a negative value otherwise.
*/
struct v4l2_ctrl_type_ops {
- bool (*equal)(const struct v4l2_ctrl *ctrl, u32 elems,
- union v4l2_ctrl_ptr ptr1,
- union v4l2_ctrl_ptr ptr2);
- void (*init)(const struct v4l2_ctrl *ctrl, u32 from_idx, u32 tot_elems,
+ bool (*equal)(const struct v4l2_ctrl *ctrl,
+ union v4l2_ctrl_ptr ptr1, union v4l2_ctrl_ptr ptr2);
+ void (*init)(const struct v4l2_ctrl *ctrl, u32 from_idx,
union v4l2_ctrl_ptr ptr);
void (*log)(const struct v4l2_ctrl *ctrl);
- int (*validate)(const struct v4l2_ctrl *ctrl, u32 elems,
- union v4l2_ctrl_ptr ptr);
+ int (*validate)(const struct v4l2_ctrl *ctrl, union v4l2_ctrl_ptr ptr);
};
/**
@@ -1543,13 +1541,12 @@ int v4l2_ctrl_new_fwnode_properties(struct v4l2_ctrl_handler *hdl,
* v4l2_ctrl_type_op_equal - Default v4l2_ctrl_type_ops equal callback.
*
* @ctrl: The v4l2_ctrl pointer.
- * @elems: The number of elements to compare.
* @ptr1: A v4l2 control value.
* @ptr2: A v4l2 control value.
*
* Return: true if values are equal, otherwise false.
*/
-bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl, u32 elems,
+bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl,
union v4l2_ctrl_ptr ptr1, union v4l2_ctrl_ptr ptr2);
/**
@@ -1557,13 +1554,12 @@ bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl, u32 elems,
*
* @ctrl: The v4l2_ctrl pointer.
* @from_idx: Starting element index.
- * @elems: The number of elements to initialize.
* @ptr: The v4l2 control value.
*
* Return: void
*/
void v4l2_ctrl_type_op_init(const struct v4l2_ctrl *ctrl, u32 from_idx,
- u32 elems, union v4l2_ctrl_ptr ptr);
+ union v4l2_ctrl_ptr ptr);
/**
* v4l2_ctrl_type_op_log - Default v4l2_ctrl_type_ops log callback.
@@ -1578,12 +1574,10 @@ void v4l2_ctrl_type_op_log(const struct v4l2_ctrl *ctrl);
* v4l2_ctrl_type_op_validate - Default v4l2_ctrl_type_ops validate callback.
*
* @ctrl: The v4l2_ctrl pointer.
- * @elems: The number of elements in the control.
* @ptr: The v4l2 control value.
*
* Return: 0 on success, a negative error code on failure.
*/
-int v4l2_ctrl_type_op_validate(const struct v4l2_ctrl *ctrl, u32 elems,
- union v4l2_ctrl_ptr ptr);
+int v4l2_ctrl_type_op_validate(const struct v4l2_ctrl *ctrl, union v4l2_ctrl_ptr ptr);
#endif
--
2.35.1
