[media] v4l2-ctrls: prepare for array support
Add core support for N-dimensional arrays. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
parent
20d88eef66
commit
998e765915
|
@ -1161,7 +1161,7 @@ static void send_event(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 changes)
|
||||||
v4l2_event_queue_fh(sev->fh, &ev);
|
v4l2_event_queue_fh(sev->fh, &ev);
|
||||||
}
|
}
|
||||||
|
|
||||||
static bool std_equal(const struct v4l2_ctrl *ctrl,
|
static bool std_equal(const struct v4l2_ctrl *ctrl, u32 idx,
|
||||||
union v4l2_ctrl_ptr ptr1,
|
union v4l2_ctrl_ptr ptr1,
|
||||||
union v4l2_ctrl_ptr ptr2)
|
union v4l2_ctrl_ptr ptr2)
|
||||||
{
|
{
|
||||||
|
@ -1180,7 +1180,7 @@ static bool std_equal(const struct v4l2_ctrl *ctrl,
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
static void std_init(const struct v4l2_ctrl *ctrl,
|
static void std_init(const struct v4l2_ctrl *ctrl, u32 idx,
|
||||||
union v4l2_ctrl_ptr ptr)
|
union v4l2_ctrl_ptr ptr)
|
||||||
{
|
{
|
||||||
switch (ctrl->type) {
|
switch (ctrl->type) {
|
||||||
|
@ -1207,6 +1207,14 @@ static void std_log(const struct v4l2_ctrl *ctrl)
|
||||||
{
|
{
|
||||||
union v4l2_ctrl_ptr ptr = ctrl->p_cur;
|
union v4l2_ctrl_ptr ptr = ctrl->p_cur;
|
||||||
|
|
||||||
|
if (ctrl->is_array) {
|
||||||
|
unsigned i;
|
||||||
|
|
||||||
|
for (i = 0; i < ctrl->nr_of_dims; i++)
|
||||||
|
pr_cont("[%u]", ctrl->dims[i]);
|
||||||
|
pr_cont(" ");
|
||||||
|
}
|
||||||
|
|
||||||
switch (ctrl->type) {
|
switch (ctrl->type) {
|
||||||
case V4L2_CTRL_TYPE_INTEGER:
|
case V4L2_CTRL_TYPE_INTEGER:
|
||||||
pr_cont("%d", *ptr.p_s32);
|
pr_cont("%d", *ptr.p_s32);
|
||||||
|
@ -1249,7 +1257,7 @@ static void std_log(const struct v4l2_ctrl *ctrl)
|
||||||
})
|
})
|
||||||
|
|
||||||
/* Validate a new control */
|
/* Validate a new control */
|
||||||
static int std_validate(const struct v4l2_ctrl *ctrl,
|
static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx,
|
||||||
union v4l2_ctrl_ptr ptr)
|
union v4l2_ctrl_ptr ptr)
|
||||||
{
|
{
|
||||||
size_t len;
|
size_t len;
|
||||||
|
@ -1473,7 +1481,7 @@ static int cluster_changed(struct v4l2_ctrl *master)
|
||||||
|
|
||||||
if (ctrl == NULL)
|
if (ctrl == NULL)
|
||||||
continue;
|
continue;
|
||||||
ctrl->has_changed = !ctrl->type_ops->equal(ctrl,
|
ctrl->has_changed = !ctrl->type_ops->equal(ctrl, 0,
|
||||||
ctrl->p_cur, ctrl->p_new);
|
ctrl->p_cur, ctrl->p_new);
|
||||||
changed |= ctrl->has_changed;
|
changed |= ctrl->has_changed;
|
||||||
}
|
}
|
||||||
|
@ -1531,15 +1539,15 @@ static int validate_new(const struct v4l2_ctrl *ctrl,
|
||||||
case V4L2_CTRL_TYPE_BUTTON:
|
case V4L2_CTRL_TYPE_BUTTON:
|
||||||
case V4L2_CTRL_TYPE_CTRL_CLASS:
|
case V4L2_CTRL_TYPE_CTRL_CLASS:
|
||||||
ptr.p_s32 = &c->value;
|
ptr.p_s32 = &c->value;
|
||||||
return ctrl->type_ops->validate(ctrl, ptr);
|
return ctrl->type_ops->validate(ctrl, 0, ptr);
|
||||||
|
|
||||||
case V4L2_CTRL_TYPE_INTEGER64:
|
case V4L2_CTRL_TYPE_INTEGER64:
|
||||||
ptr.p_s64 = &c->value64;
|
ptr.p_s64 = &c->value64;
|
||||||
return ctrl->type_ops->validate(ctrl, ptr);
|
return ctrl->type_ops->validate(ctrl, 0, ptr);
|
||||||
|
|
||||||
default:
|
default:
|
||||||
ptr.p = c->ptr;
|
ptr.p = c->ptr;
|
||||||
return ctrl->type_ops->validate(ctrl, ptr);
|
return ctrl->type_ops->validate(ctrl, 0, ptr);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -1767,6 +1775,8 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
|
||||||
unsigned sz_extra;
|
unsigned sz_extra;
|
||||||
unsigned nr_of_dims = 0;
|
unsigned nr_of_dims = 0;
|
||||||
unsigned elems = 1;
|
unsigned elems = 1;
|
||||||
|
bool is_array;
|
||||||
|
unsigned tot_ctrl_size;
|
||||||
void *data;
|
void *data;
|
||||||
int err;
|
int err;
|
||||||
|
|
||||||
|
@ -1779,6 +1789,7 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
|
||||||
if (nr_of_dims == V4L2_CTRL_MAX_DIMS)
|
if (nr_of_dims == V4L2_CTRL_MAX_DIMS)
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
is_array = nr_of_dims > 0;
|
||||||
|
|
||||||
if (type == V4L2_CTRL_TYPE_INTEGER64)
|
if (type == V4L2_CTRL_TYPE_INTEGER64)
|
||||||
elem_size = sizeof(s64);
|
elem_size = sizeof(s64);
|
||||||
|
@ -1786,10 +1797,11 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
|
||||||
elem_size = max + 1;
|
elem_size = max + 1;
|
||||||
else if (type < V4L2_CTRL_COMPOUND_TYPES)
|
else if (type < V4L2_CTRL_COMPOUND_TYPES)
|
||||||
elem_size = sizeof(s32);
|
elem_size = sizeof(s32);
|
||||||
|
tot_ctrl_size = elem_size * elems;
|
||||||
|
|
||||||
/* Sanity checks */
|
/* Sanity checks */
|
||||||
if (id == 0 || name == NULL || id >= V4L2_CID_PRIVATE_BASE ||
|
if (id == 0 || name == NULL || !elem_size ||
|
||||||
elem_size == 0 ||
|
id >= V4L2_CID_PRIVATE_BASE ||
|
||||||
(type == V4L2_CTRL_TYPE_MENU && qmenu == NULL) ||
|
(type == V4L2_CTRL_TYPE_MENU && qmenu == NULL) ||
|
||||||
(type == V4L2_CTRL_TYPE_INTEGER_MENU && qmenu_int == NULL)) {
|
(type == V4L2_CTRL_TYPE_INTEGER_MENU && qmenu_int == NULL)) {
|
||||||
handler_set_err(hdl, -ERANGE);
|
handler_set_err(hdl, -ERANGE);
|
||||||
|
@ -1804,6 +1816,12 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
|
||||||
handler_set_err(hdl, -ERANGE);
|
handler_set_err(hdl, -ERANGE);
|
||||||
return NULL;
|
return NULL;
|
||||||
}
|
}
|
||||||
|
if (is_array &&
|
||||||
|
(type == V4L2_CTRL_TYPE_BUTTON ||
|
||||||
|
type == V4L2_CTRL_TYPE_CTRL_CLASS)) {
|
||||||
|
handler_set_err(hdl, -EINVAL);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
sz_extra = 0;
|
sz_extra = 0;
|
||||||
if (type == V4L2_CTRL_TYPE_BUTTON)
|
if (type == V4L2_CTRL_TYPE_BUTTON)
|
||||||
|
@ -1812,8 +1830,9 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
|
||||||
flags |= V4L2_CTRL_FLAG_READ_ONLY;
|
flags |= V4L2_CTRL_FLAG_READ_ONLY;
|
||||||
else if (type == V4L2_CTRL_TYPE_INTEGER64 ||
|
else if (type == V4L2_CTRL_TYPE_INTEGER64 ||
|
||||||
type == V4L2_CTRL_TYPE_STRING ||
|
type == V4L2_CTRL_TYPE_STRING ||
|
||||||
type >= V4L2_CTRL_COMPOUND_TYPES)
|
type >= V4L2_CTRL_COMPOUND_TYPES ||
|
||||||
sz_extra += 2 * elem_size;
|
is_array)
|
||||||
|
sz_extra += 2 * tot_ctrl_size;
|
||||||
|
|
||||||
ctrl = kzalloc(sizeof(*ctrl) + sz_extra, GFP_KERNEL);
|
ctrl = kzalloc(sizeof(*ctrl) + sz_extra, GFP_KERNEL);
|
||||||
if (ctrl == NULL) {
|
if (ctrl == NULL) {
|
||||||
|
@ -1834,9 +1853,10 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
|
||||||
ctrl->maximum = max;
|
ctrl->maximum = max;
|
||||||
ctrl->step = step;
|
ctrl->step = step;
|
||||||
ctrl->default_value = def;
|
ctrl->default_value = def;
|
||||||
ctrl->is_string = type == V4L2_CTRL_TYPE_STRING;
|
ctrl->is_string = !is_array && type == V4L2_CTRL_TYPE_STRING;
|
||||||
ctrl->is_ptr = type >= V4L2_CTRL_COMPOUND_TYPES || ctrl->is_string;
|
ctrl->is_ptr = is_array || type >= V4L2_CTRL_COMPOUND_TYPES || ctrl->is_string;
|
||||||
ctrl->is_int = !ctrl->is_ptr && type != V4L2_CTRL_TYPE_INTEGER64;
|
ctrl->is_int = !ctrl->is_ptr && type != V4L2_CTRL_TYPE_INTEGER64;
|
||||||
|
ctrl->is_array = is_array;
|
||||||
ctrl->elems = elems;
|
ctrl->elems = elems;
|
||||||
ctrl->nr_of_dims = nr_of_dims;
|
ctrl->nr_of_dims = nr_of_dims;
|
||||||
if (nr_of_dims)
|
if (nr_of_dims)
|
||||||
|
@ -1852,13 +1872,13 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
|
||||||
|
|
||||||
if (!ctrl->is_int) {
|
if (!ctrl->is_int) {
|
||||||
ctrl->p_new.p = data;
|
ctrl->p_new.p = data;
|
||||||
ctrl->p_cur.p = data + elem_size;
|
ctrl->p_cur.p = data + tot_ctrl_size;
|
||||||
} else {
|
} else {
|
||||||
ctrl->p_new.p = &ctrl->val;
|
ctrl->p_new.p = &ctrl->val;
|
||||||
ctrl->p_cur.p = &ctrl->cur.val;
|
ctrl->p_cur.p = &ctrl->cur.val;
|
||||||
}
|
}
|
||||||
ctrl->type_ops->init(ctrl, ctrl->p_cur);
|
ctrl->type_ops->init(ctrl, 0, ctrl->p_cur);
|
||||||
ctrl->type_ops->init(ctrl, ctrl->p_new);
|
ctrl->type_ops->init(ctrl, 0, ctrl->p_new);
|
||||||
|
|
||||||
if (handler_new_ref(hdl, ctrl)) {
|
if (handler_new_ref(hdl, ctrl)) {
|
||||||
kfree(ctrl);
|
kfree(ctrl);
|
||||||
|
@ -2764,7 +2784,7 @@ s64 v4l2_ctrl_g_ctrl_int64(struct v4l2_ctrl *ctrl)
|
||||||
struct v4l2_ext_control c;
|
struct v4l2_ext_control c;
|
||||||
|
|
||||||
/* It's a driver bug if this happens. */
|
/* It's a driver bug if this happens. */
|
||||||
WARN_ON(ctrl->type != V4L2_CTRL_TYPE_INTEGER64);
|
WARN_ON(ctrl->is_ptr || ctrl->type != V4L2_CTRL_TYPE_INTEGER64);
|
||||||
c.value = 0;
|
c.value = 0;
|
||||||
get_ctrl(ctrl, &c);
|
get_ctrl(ctrl, &c);
|
||||||
return c.value;
|
return c.value;
|
||||||
|
@ -3074,7 +3094,7 @@ int v4l2_ctrl_s_ctrl_int64(struct v4l2_ctrl *ctrl, s64 val)
|
||||||
struct v4l2_ext_control c;
|
struct v4l2_ext_control c;
|
||||||
|
|
||||||
/* It's a driver bug if this happens. */
|
/* It's a driver bug if this happens. */
|
||||||
WARN_ON(ctrl->type != V4L2_CTRL_TYPE_INTEGER64);
|
WARN_ON(ctrl->is_ptr || ctrl->type != V4L2_CTRL_TYPE_INTEGER64);
|
||||||
c.value64 = val;
|
c.value64 = val;
|
||||||
return set_ctrl_lock(NULL, ctrl, &c);
|
return set_ctrl_lock(NULL, ctrl, &c);
|
||||||
}
|
}
|
||||||
|
|
|
@ -74,13 +74,13 @@ struct v4l2_ctrl_ops {
|
||||||
* @validate: validate the value. Return 0 on success and a negative value otherwise.
|
* @validate: validate the value. Return 0 on success and a negative value otherwise.
|
||||||
*/
|
*/
|
||||||
struct v4l2_ctrl_type_ops {
|
struct v4l2_ctrl_type_ops {
|
||||||
bool (*equal)(const struct v4l2_ctrl *ctrl,
|
bool (*equal)(const struct v4l2_ctrl *ctrl, u32 idx,
|
||||||
union v4l2_ctrl_ptr ptr1,
|
union v4l2_ctrl_ptr ptr1,
|
||||||
union v4l2_ctrl_ptr ptr2);
|
union v4l2_ctrl_ptr ptr2);
|
||||||
void (*init)(const struct v4l2_ctrl *ctrl,
|
void (*init)(const struct v4l2_ctrl *ctrl, u32 idx,
|
||||||
union v4l2_ctrl_ptr ptr);
|
union v4l2_ctrl_ptr ptr);
|
||||||
void (*log)(const struct v4l2_ctrl *ctrl);
|
void (*log)(const struct v4l2_ctrl *ctrl);
|
||||||
int (*validate)(const struct v4l2_ctrl *ctrl,
|
int (*validate)(const struct v4l2_ctrl *ctrl, u32 idx,
|
||||||
union v4l2_ctrl_ptr ptr);
|
union v4l2_ctrl_ptr ptr);
|
||||||
};
|
};
|
||||||
|
|
||||||
|
@ -111,6 +111,7 @@ typedef void (*v4l2_ctrl_notify_fnc)(struct v4l2_ctrl *ctrl, void *priv);
|
||||||
* @is_ptr: If set, then this control is an array and/or has type >= V4L2_CTRL_COMPOUND_TYPES
|
* @is_ptr: If set, then this control is an array and/or has type >= V4L2_CTRL_COMPOUND_TYPES
|
||||||
* and/or has type V4L2_CTRL_TYPE_STRING. In other words, struct
|
* and/or has type V4L2_CTRL_TYPE_STRING. In other words, struct
|
||||||
* v4l2_ext_control uses field p to point to the data.
|
* v4l2_ext_control uses field p to point to the data.
|
||||||
|
* @is_array: If set, then this control contains an N-dimensional array.
|
||||||
* @has_volatiles: If set, then one or more members of the cluster are volatile.
|
* @has_volatiles: If set, then one or more members of the cluster are volatile.
|
||||||
* Drivers should never touch this flag.
|
* Drivers should never touch this flag.
|
||||||
* @call_notify: If set, then call the handler's notify function whenever the
|
* @call_notify: If set, then call the handler's notify function whenever the
|
||||||
|
@ -169,6 +170,7 @@ struct v4l2_ctrl {
|
||||||
unsigned int is_int:1;
|
unsigned int is_int:1;
|
||||||
unsigned int is_string:1;
|
unsigned int is_string:1;
|
||||||
unsigned int is_ptr:1;
|
unsigned int is_ptr:1;
|
||||||
|
unsigned int is_array:1;
|
||||||
unsigned int has_volatiles:1;
|
unsigned int has_volatiles:1;
|
||||||
unsigned int call_notify:1;
|
unsigned int call_notify:1;
|
||||||
unsigned int manual_mode_value:8;
|
unsigned int manual_mode_value:8;
|
||||||
|
|
Loading…
Reference in a new issue