From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
While VIDIOC_QUERYCTRL is limited to 32 bit min/max/step/def values
for controls, the upcoming VIDIOC_QUERY_EXT_CTRL isn't. So increase
the internal representation to 64 bits in preparation.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-common.c | 6 ++-
drivers/media/v4l2-core/v4l2-ctrls.c | 76 +++++++++++++++++------------
drivers/staging/media/msi3101/sdr-msi3101.c | 2 +-
include/media/v4l2-ctrls.h | 38 +++++++--------
4 files changed, 69 insertions(+), 53 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 433d6d7..ccaa38f 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -111,9 +111,13 @@ int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
EXPORT_SYMBOL(v4l2_ctrl_check);
/* Fill in a struct v4l2_queryctrl */
-int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def)
+int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 _min, s32 _max, s32 _step, s32 _def)
{
const char *name;
+ s64 min = _min;
+ s64 max = _max;
+ u64 step = _step;
+ s64 def = _def;
v4l2_ctrl_fill(qctrl->id, &name, &qctrl->type,
&min, &max, &step, &def, &qctrl->flags);
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index fb46790..d36d7f5 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -859,7 +859,7 @@ const char *v4l2_ctrl_get_name(u32 id)
EXPORT_SYMBOL(v4l2_ctrl_get_name);
void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
- s32 *min, s32 *max, s32 *step, s32 *def, u32 *flags)
+ s64 *min, s64 *max, u64 *step, s64 *def, u32 *flags)
{
*name = v4l2_ctrl_get_name(id);
*flags = 0;
@@ -1317,7 +1317,7 @@ static int cluster_changed(struct v4l2_ctrl *master)
/* Control range checking */
static int check_range(enum v4l2_ctrl_type type,
- s32 min, s32 max, u32 step, s32 def)
+ s64 min, s64 max, u64 step, s64 def)
{
switch (type) {
case V4L2_CTRL_TYPE_BOOLEAN:
@@ -1325,7 +1325,8 @@ static int check_range(enum v4l2_ctrl_type type,
return -ERANGE;
/* fall through */
case V4L2_CTRL_TYPE_INTEGER:
- if (step <= 0 || min > max || def < min || def > max)
+ case V4L2_CTRL_TYPE_INTEGER64:
+ if (step == 0 || min > max || def < min || def > max)
return -ERANGE;
return 0;
case V4L2_CTRL_TYPE_BITMASK:
@@ -1350,23 +1351,30 @@ static int check_range(enum v4l2_ctrl_type type,
}
}
+/* Round towards the closest legal value */
+#define ROUND_TO_RANGE(val, offset_type, ctrl) \
+({ \
+ offset_type offset; \
+ val += (ctrl)->step / 2; \
+ val = clamp_t(typeof(val), val, \
+ (ctrl)->minimum, (ctrl)->maximum); \
+ offset = (val) - (ctrl)->minimum; \
+ offset = (ctrl)->step * (offset / (ctrl)->step); \
+ val = (ctrl)->minimum + offset; \
+ 0; \
+})
+
/* Validate a new control */
static int validate_new(const struct v4l2_ctrl *ctrl,
struct v4l2_ext_control *c)
{
size_t len;
- u32 offset;
- s32 val;
switch (ctrl->type) {
case V4L2_CTRL_TYPE_INTEGER:
- /* Round towards the closest legal value */
- val = c->value + ctrl->step / 2;
- val = clamp(val, ctrl->minimum, ctrl->maximum);
- offset = val - ctrl->minimum;
- offset = ctrl->step * (offset / ctrl->step);
- c->value = ctrl->minimum + offset;
- return 0;
+ return ROUND_TO_RANGE(*(s32 *)&c->value, u32, ctrl);
+ case V4L2_CTRL_TYPE_INTEGER64:
+ return ROUND_TO_RANGE(*(s64 *)&c->value64, u64, ctrl);
case V4L2_CTRL_TYPE_BOOLEAN:
c->value = !!c->value;
@@ -1392,9 +1400,6 @@ static int validate_new(const struct v4l2_ctrl *ctrl,
c->value = 0;
return 0;
- case V4L2_CTRL_TYPE_INTEGER64:
- return 0;
-
case V4L2_CTRL_TYPE_STRING:
len = strlen(c->string);
if (len < ctrl->minimum)
@@ -1618,7 +1623,7 @@ unlock:
static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
u32 id, const char *name, enum v4l2_ctrl_type type,
- s32 min, s32 max, u32 step, s32 def,
+ s64 min, s64 max, u64 step, s64 def,
u32 flags, const char * const *qmenu,
const s64 *qmenu_int, void *priv)
{
@@ -1703,10 +1708,10 @@ struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl,
const s64 *qmenu_int = cfg->qmenu_int;
enum v4l2_ctrl_type type = cfg->type;
u32 flags = cfg->flags;
- s32 min = cfg->min;
- s32 max = cfg->max;
- u32 step = cfg->step;
- s32 def = cfg->def;
+ s64 min = cfg->min;
+ s64 max = cfg->max;
+ u64 step = cfg->step;
+ s64 def = cfg->def;
if (name == NULL)
v4l2_ctrl_fill(cfg->id, &name, &type, &min, &max, &step,
@@ -1739,7 +1744,7 @@ EXPORT_SYMBOL(v4l2_ctrl_new_custom);
/* Helper function for standard non-menu controls */
struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
- u32 id, s32 min, s32 max, u32 step, s32 def)
+ u32 id, s64 min, s64 max, u64 step, s64 def)
{
const char *name;
enum v4l2_ctrl_type type;
@@ -1759,15 +1764,17 @@ EXPORT_SYMBOL(v4l2_ctrl_new_std);
/* Helper function for standard menu controls */
struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
- u32 id, s32 max, s32 mask, s32 def)
+ u32 id, u8 _max, u64 mask, u8 _def)
{
const char * const *qmenu = NULL;
const s64 *qmenu_int = NULL;
unsigned int qmenu_int_len = 0;
const char *name;
enum v4l2_ctrl_type type;
- s32 min;
- s32 step;
+ s64 min;
+ s64 max = _max;
+ s64 def = _def;
+ u64 step;
u32 flags;
v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags);
@@ -1788,14 +1795,16 @@ EXPORT_SYMBOL(v4l2_ctrl_new_std_menu);
/* Helper function for standard menu controls with driver defined menu */
struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl,
- const struct v4l2_ctrl_ops *ops, u32 id, s32 max,
- s32 mask, s32 def, const char * const *qmenu)
+ const struct v4l2_ctrl_ops *ops, u32 id, u8 _max,
+ u64 mask, u8 _def, const char * const *qmenu)
{
enum v4l2_ctrl_type type;
const char *name;
u32 flags;
- s32 step;
- s32 min;
+ u64 step;
+ s64 min;
+ s64 max = _max;
+ s64 def = _def;
/* v4l2_ctrl_new_std_menu_items() should only be called for
* standard controls without a standard menu.
@@ -1819,12 +1828,14 @@ EXPORT_SYMBOL(v4l2_ctrl_new_std_menu_items);
/* Helper function for standard integer menu controls */
struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
- u32 id, s32 max, s32 def, const s64 *qmenu_int)
+ u32 id, u8 _max, u8 _def, const s64 *qmenu_int)
{
const char *name;
enum v4l2_ctrl_type type;
- s32 min;
- s32 step;
+ s64 min;
+ u64 step;
+ s64 max = _max;
+ s64 def = _def;
u32 flags;
v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags);
@@ -2851,13 +2862,14 @@ void v4l2_ctrl_notify(struct v4l2_ctrl *ctrl, v4l2_ctrl_notify_fnc notify, void
EXPORT_SYMBOL(v4l2_ctrl_notify);
int v4l2_ctrl_modify_range(struct v4l2_ctrl *ctrl,
- s32 min, s32 max, u32 step, s32 def)
+ s64 min, s64 max, u64 step, s64 def)
{
int ret = check_range(ctrl->type, min, max, step, def);
struct v4l2_ext_control c;
switch (ctrl->type) {
case V4L2_CTRL_TYPE_INTEGER:
+ case V4L2_CTRL_TYPE_INTEGER64:
case V4L2_CTRL_TYPE_BOOLEAN:
case V4L2_CTRL_TYPE_MENU:
case V4L2_CTRL_TYPE_INTEGER_MENU:
diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c b/drivers/staging/media/msi3101/sdr-msi3101.c
index 4c3bf77..1152ca3 100644
--- a/drivers/staging/media/msi3101/sdr-msi3101.c
+++ b/drivers/staging/media/msi3101/sdr-msi3101.c
@@ -1713,7 +1713,7 @@ static int msi3101_s_ctrl(struct v4l2_ctrl *ctrl)
ctrl_handler);
int ret;
dev_dbg(&s->udev->dev,
- "%s: id=%d name=%s val=%d min=%d max=%d step=%d\n",
+ "%s: id=%d name=%s val=%d min=%lld max=%lld step=%llu\n",
__func__, ctrl->id, ctrl->name, ctrl->val,
ctrl->minimum, ctrl->maximum, ctrl->step);
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 16f7f26..0b347e8 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -131,10 +131,10 @@ struct v4l2_ctrl {
u32 id;
const char *name;
enum v4l2_ctrl_type type;
- s32 minimum, maximum, default_value;
+ s64 minimum, maximum, default_value;
union {
- u32 step;
- u32 menu_skip_mask;
+ u64 step;
+ u64 menu_skip_mask;
};
union {
const char * const *qmenu;
@@ -231,12 +231,12 @@ struct v4l2_ctrl_config {
u32 id;
const char *name;
enum v4l2_ctrl_type type;
- s32 min;
- s32 max;
- u32 step;
- s32 def;
+ s64 min;
+ s64 max;
+ u64 step;
+ s64 def;
u32 flags;
- u32 menu_skip_mask;
+ u64 menu_skip_mask;
const char * const *qmenu;
const s64 *qmenu_int;
unsigned int is_private:1;
@@ -257,7 +257,7 @@ struct v4l2_ctrl_config {
* control framework this function will no longer be exported.
*/
void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
- s32 *min, s32 *max, s32 *step, s32 *def, u32 *flags);
+ s64 *min, s64 *max, u64 *step, s64 *def, u32 *flags);
/** v4l2_ctrl_handler_init_class() - Initialize the control handler.
@@ -362,7 +362,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl,
*/
struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
- u32 id, s32 min, s32 max, u32 step, s32 def);
+ u32 id, s64 min, s64 max, u64 step, s64 def);
/** v4l2_ctrl_new_std_menu() - Allocate and initialize a new standard V4L2 menu control.
* @hdl: The control handler.
@@ -372,9 +372,9 @@ struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
* @mask: The control's skip mask for menu controls. This makes it
* easy to skip menu items that are not valid. If bit X is set,
* then menu item X is skipped. Of course, this only works for
- * menus with <= 32 menu items. There are no menus that come
+ * menus with <= 64 menu items. There are no menus that come
* close to that number, so this is OK. Should we ever need more,
- * then this will have to be extended to a u64 or a bit array.
+ * then this will have to be extended to a bit array.
* @def: The control's default value.
*
* Same as v4l2_ctrl_new_std(), but @min is set to 0 and the @mask value
@@ -384,7 +384,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
*/
struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
- u32 id, s32 max, s32 mask, s32 def);
+ u32 id, u8 max, u64 mask, u8 def);
/** v4l2_ctrl_new_std_menu_items() - Create a new standard V4L2 menu control
* with driver specific menu.
@@ -395,9 +395,9 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
* @mask: The control's skip mask for menu controls. This makes it
* easy to skip menu items that are not valid. If bit X is set,
* then menu item X is skipped. Of course, this only works for
- * menus with <= 32 menu items. There are no menus that come
+ * menus with <= 64 menu items. There are no menus that come
* close to that number, so this is OK. Should we ever need more,
- * then this will have to be extended to a u64 or a bit array.
+ * then this will have to be extended to a bit array.
* @def: The control's default value.
* @qmenu: The new menu.
*
@@ -406,8 +406,8 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
*
*/
struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl,
- const struct v4l2_ctrl_ops *ops, u32 id, s32 max,
- s32 mask, s32 def, const char * const *qmenu);
+ const struct v4l2_ctrl_ops *ops, u32 id, u8 max,
+ u64 mask, u8 def, const char * const *qmenu);
/** v4l2_ctrl_new_int_menu() - Create a new standard V4L2 integer menu control.
* @hdl: The control handler.
@@ -424,7 +424,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl,
*/
struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
- u32 id, s32 max, s32 def, const s64 *qmenu_int);
+ u32 id, u8 max, u8 def, const s64 *qmenu_int);
/** v4l2_ctrl_add_ctrl() - Add a control from another handler to this handler.
* @hdl: The control handler.
@@ -560,7 +560,7 @@ void v4l2_ctrl_grab(struct v4l2_ctrl *ctrl, bool grabbed);
* take the lock itself.
*/
int v4l2_ctrl_modify_range(struct v4l2_ctrl *ctrl,
- s32 min, s32 max, u32 step, s32 def);
+ s64 min, s64 max, u64 step, s64 def);
/** v4l2_ctrl_lock() - Helper function to lock the handler
* associated with the control.
--
1.8.5.2
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
