diff options
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ctrls.c | 224 | ||||
| -rw-r--r-- | include/media/v4l2-ctrls.h | 23 |
2 files changed, 187 insertions, 60 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 365884b3abad..d5cd1aab970b 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1124,20 +1124,6 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, } EXPORT_SYMBOL(v4l2_ctrl_fill); -/* Helper function to determine whether the control type is compatible with - VIDIOC_G/S_CTRL. */ -static bool type_is_int(const struct v4l2_ctrl *ctrl) -{ - switch (ctrl->type) { - case V4L2_CTRL_TYPE_INTEGER64: - case V4L2_CTRL_TYPE_STRING: - /* Nope, these need v4l2_ext_control */ - return false; - default: - return true; - } -} - static void fill_event(struct v4l2_event *ev, struct v4l2_ctrl *ctrl, u32 changes) { memset(ev->reserved, 0, sizeof(ev->reserved)); @@ -1146,7 +1132,7 @@ static void fill_event(struct v4l2_event *ev, struct v4l2_ctrl *ctrl, u32 change ev->u.ctrl.changes = changes; ev->u.ctrl.type = ctrl->type; ev->u.ctrl.flags = ctrl->flags; - if (ctrl->type == V4L2_CTRL_TYPE_STRING) + if (ctrl->is_ptr) ev->u.ctrl.value64 = 0; else ev->u.ctrl.value64 = ctrl->cur.val64; @@ -1181,6 +1167,9 @@ static int cur_to_user(struct v4l2_ext_control *c, { u32 len; + if (ctrl->is_ptr && !ctrl->is_string) + return copy_to_user(c->ptr, ctrl->cur.p, ctrl->elem_size); + switch (ctrl->type) { case V4L2_CTRL_TYPE_STRING: len = strlen(ctrl->cur.string); @@ -1208,6 +1197,9 @@ static int user_to_new(struct v4l2_ext_control *c, u32 size; ctrl->is_new = 1; + if (ctrl->is_ptr && !ctrl->is_string) + return copy_from_user(ctrl->p, c->ptr, ctrl->elem_size); + switch (ctrl->type) { case V4L2_CTRL_TYPE_INTEGER64: ctrl->val64 = c->value64; @@ -1242,6 +1234,9 @@ static int new_to_user(struct v4l2_ext_control *c, { u32 len; + if (ctrl->is_ptr && !ctrl->is_string) + return copy_to_user(c->ptr, ctrl->p, ctrl->elem_size); + switch (ctrl->type) { case V4L2_CTRL_TYPE_STRING: len = strlen(ctrl->string); @@ -1268,6 +1263,7 @@ static void new_to_cur(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 ch_flags) if (ctrl == NULL) return; + switch (ctrl->type) { case V4L2_CTRL_TYPE_BUTTON: changed = true; @@ -1282,8 +1278,13 @@ static void new_to_cur(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 ch_flags) ctrl->cur.val64 = ctrl->val64; break; default: - changed = ctrl->val != ctrl->cur.val; - ctrl->cur.val = ctrl->val; + if (ctrl->is_ptr) { + changed = memcmp(ctrl->p, ctrl->cur.p, ctrl->elem_size); + memcpy(ctrl->cur.p, ctrl->p, ctrl->elem_size); + } else { + changed = ctrl->val != ctrl->cur.val; + ctrl->cur.val = ctrl->val; + } break; } if (ch_flags & V4L2_EVENT_CTRL_CH_FLAGS) { @@ -1323,7 +1324,10 @@ static void cur_to_new(struct v4l2_ctrl *ctrl) ctrl->val64 = ctrl->cur.val64; break; default: - ctrl->val = ctrl->cur.val; + if (ctrl->is_ptr) + memcpy(ctrl->p, ctrl->cur.p, ctrl->elem_size); + else + ctrl->val = ctrl->cur.val; break; } } @@ -1536,7 +1540,7 @@ static struct v4l2_ctrl_ref *find_private_ref( VIDIOC_G/S_CTRL. */ if (V4L2_CTRL_ID2CLASS(ref->ctrl->id) == V4L2_CTRL_CLASS_USER && V4L2_CTRL_DRIVER_PRIV(ref->ctrl->id)) { - if (!type_is_int(ref->ctrl)) + if (!ref->ctrl->is_int) continue; if (id == 0) return ref; @@ -1606,8 +1610,12 @@ static int handler_new_ref(struct v4l2_ctrl_handler *hdl, u32 class_ctrl = V4L2_CTRL_ID2CLASS(id) | 1; int bucket = id % hdl->nr_of_buckets; /* which bucket to use */ - /* Automatically add the control class if it is not yet present. */ - if (id != class_ctrl && find_ref_lock(hdl, class_ctrl) == NULL) + /* + * Automatically add the control class if it is not yet present and + * the new control is not a compound control. + */ + if (ctrl->type < V4L2_CTRL_COMPOUND_TYPES && + id != class_ctrl && find_ref_lock(hdl, class_ctrl) == NULL) if (!v4l2_ctrl_new_std(hdl, NULL, class_ctrl, 0, 0, 0, 0)) return hdl->error; @@ -1668,18 +1676,28 @@ 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, s64 min, s64 max, u64 step, s64 def, + u32 elem_size, u32 flags, const char * const *qmenu, const s64 *qmenu_int, void *priv) { struct v4l2_ctrl *ctrl; - unsigned sz_extra = 0; + unsigned sz_extra; + void *data; int err; if (hdl->error) return NULL; + if (type == V4L2_CTRL_TYPE_INTEGER64) + elem_size = sizeof(s64); + else if (type == V4L2_CTRL_TYPE_STRING) + elem_size = max + 1; + else if (type < V4L2_CTRL_COMPOUND_TYPES) + elem_size = sizeof(s32); + /* Sanity checks */ if (id == 0 || name == NULL || id >= V4L2_CID_PRIVATE_BASE || + elem_size == 0 || (type == V4L2_CTRL_TYPE_MENU && qmenu == NULL) || (type == V4L2_CTRL_TYPE_INTEGER_MENU && qmenu_int == NULL)) { handler_set_err(hdl, -ERANGE); @@ -1695,12 +1713,13 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, return NULL; } + sz_extra = 0; if (type == V4L2_CTRL_TYPE_BUTTON) flags |= V4L2_CTRL_FLAG_WRITE_ONLY; else if (type == V4L2_CTRL_TYPE_CTRL_CLASS) flags |= V4L2_CTRL_FLAG_READ_ONLY; - else if (type == V4L2_CTRL_TYPE_STRING) - sz_extra += 2 * (max + 1); + else if (type == V4L2_CTRL_TYPE_STRING || type >= V4L2_CTRL_COMPOUND_TYPES) + sz_extra += 2 * elem_size; ctrl = kzalloc(sizeof(*ctrl) + sz_extra, GFP_KERNEL); if (ctrl == NULL) { @@ -1719,18 +1738,28 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, ctrl->minimum = min; ctrl->maximum = max; ctrl->step = step; + ctrl->default_value = def; + ctrl->is_string = type == V4L2_CTRL_TYPE_STRING; + ctrl->is_ptr = type >= V4L2_CTRL_COMPOUND_TYPES || ctrl->is_string; + ctrl->is_int = !ctrl->is_ptr && type != V4L2_CTRL_TYPE_INTEGER64; + ctrl->elem_size = elem_size; if (type == V4L2_CTRL_TYPE_MENU) ctrl->qmenu = qmenu; else if (type == V4L2_CTRL_TYPE_INTEGER_MENU) ctrl->qmenu_int = qmenu_int; ctrl->priv = priv; - ctrl->cur.val = ctrl->val = ctrl->default_value = def; + ctrl->cur.val = ctrl->val = def; + data = &ctrl->cur + 1; + + if (ctrl->is_string) { + ctrl->string = data; + ctrl->cur.string = data + elem_size; - if (ctrl->type == V4L2_CTRL_TYPE_STRING) { - ctrl->cur.string = (char *)&ctrl[1] + sz_extra - (max + 1); - ctrl->string = (char *)&ctrl[1] + sz_extra - 2 * (max + 1); if (ctrl->minimum) memset(ctrl->cur.string, ' ', ctrl->minimum); + } else if (ctrl->is_ptr) { + ctrl->p = data; + ctrl->cur.p = data + elem_size; } if (handler_new_ref(hdl, ctrl)) { kfree(ctrl); @@ -1778,7 +1807,8 @@ struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl, ctrl = v4l2_ctrl_new(hdl, cfg->ops, cfg->id, name, type, min, max, is_menu ? cfg->menu_skip_mask : step, - def, flags, qmenu, qmenu_int, priv); + def, cfg->elem_size, + flags, qmenu, qmenu_int, priv); if (ctrl) ctrl->is_private = cfg->is_private; return ctrl; @@ -1795,13 +1825,15 @@ struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl, u32 flags; v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags); - if (type == V4L2_CTRL_TYPE_MENU - || type == V4L2_CTRL_TYPE_INTEGER_MENU) { + if (type == V4L2_CTRL_TYPE_MENU || + type == V4L2_CTRL_TYPE_INTEGER_MENU || + type >= V4L2_CTRL_COMPOUND_TYPES) { handler_set_err(hdl, -EINVAL); return NULL; } return v4l2_ctrl_new(hdl, ops, id, name, type, - min, max, step, def, flags, NULL, NULL, NULL); + min, max, step, def, 0, + flags, NULL, NULL, NULL); } EXPORT_SYMBOL(v4l2_ctrl_new_std); @@ -1833,7 +1865,8 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl, return NULL; } return v4l2_ctrl_new(hdl, ops, id, name, type, - 0, max, mask, def, flags, qmenu, qmenu_int, NULL); + 0, max, mask, def, 0, + flags, qmenu, qmenu_int, NULL); } EXPORT_SYMBOL(v4l2_ctrl_new_std_menu); @@ -1864,7 +1897,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl, return NULL; } return v4l2_ctrl_new(hdl, ops, id, name, type, 0, max, mask, def, - flags, qmenu, NULL, NULL); + 0, flags, qmenu, NULL, NULL); } EXPORT_SYMBOL(v4l2_ctrl_new_std_menu_items); @@ -1888,7 +1921,8 @@ struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl, return NULL; } return v4l2_ctrl_new(hdl, ops, id, name, type, - 0, max, 0, def, flags, NULL, qmenu_int, NULL); + 0, max, 0, def, 0, + flags, NULL, qmenu_int, NULL); } EXPORT_SYMBOL(v4l2_ctrl_new_int_menu); @@ -2177,9 +2211,10 @@ int v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl) } EXPORT_SYMBOL(v4l2_ctrl_handler_setup); -/* Implement VIDIOC_QUERYCTRL */ -int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) +/* Implement VIDIOC_QUERY_EXT_CTRL */ +int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctrl *qc) { + const unsigned next_flags = V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND; u32 id = qc->id & V4L2_CTRL_ID_MASK; struct v4l2_ctrl_ref *ref; struct v4l2_ctrl *ctrl; @@ -2192,7 +2227,20 @@ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) /* Try to find it */ ref = find_ref(hdl, id); - if ((qc->id & V4L2_CTRL_FLAG_NEXT_CTRL) && !list_empty(&hdl->ctrl_refs)) { + if ((qc->id & next_flags) && !list_empty(&hdl->ctrl_refs)) { + bool is_compound; + /* Match any control that is not hidden */ + unsigned mask = 1; + bool match = false; + + if ((qc->id & next_flags) == V4L2_CTRL_FLAG_NEXT_COMPOUND) { + /* Match any hidden control */ + match = true; + } else if ((qc->id & next_flags) == next_flags) { + /* Match any control, compound or not */ + mask = 0; + } + /* Find the next control with ID > qc->id */ /* Did we reach the end of the control list? */ @@ -2200,19 +2248,34 @@ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) ref = NULL; /* Yes, so there is no next control */ } else if (ref) { /* We found a control with the given ID, so just get - the next one in the list. */ - ref = list_entry(ref->node.next, typeof(*ref), node); + the next valid one in the list. */ + list_for_each_entry_continue(ref, &hdl->ctrl_refs, node) { + is_compound = + ref->ctrl->type >= V4L2_CTRL_COMPOUND_TYPES; + if (id < ref->ctrl->id && + (is_compound & mask) == match) + break; + } + if (&ref->node == &hdl->ctrl_refs) + ref = NULL; } else { /* No control with the given ID exists, so start searching for the next largest ID. We know there is one, otherwise the first 'if' above would have been true. */ - list_for_each_entry(ref, &hdl->ctrl_refs, node) - if (id < ref->ctrl->id) + list_for_each_entry(ref, &hdl->ctrl_refs, node) { + is_compound = + ref->ctrl->type >= V4L2_CTRL_COMPOUND_TYPES; + if (id < ref->ctrl->id && + (is_compound & mask) == match) break; + } + if (&ref->node == &hdl->ctrl_refs) + ref = NULL; } } mutex_unlock(hdl->lock); + if (!ref) return -EINVAL; @@ -2223,6 +2286,12 @@ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) else qc->id = ctrl->id; strlcpy(qc->name, ctrl->name, sizeof(qc->name)); + qc->flags = ctrl->flags; + qc->type = ctrl->type; + if (ctrl->is_ptr) + qc->flags |= V4L2_CTRL_FLAG_HAS_PAYLOAD; + qc->elem_size = ctrl->elem_size; + qc->elems = 1; qc->minimum = ctrl->minimum; qc->maximum = ctrl->maximum; qc->default_value = ctrl->default_value; @@ -2231,15 +2300,50 @@ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) qc->step = 1; else qc->step = ctrl->step; - qc->flags = ctrl->flags; - qc->type = ctrl->type; + return 0; +} +EXPORT_SYMBOL(v4l2_query_ext_ctrl); + +/* Implement VIDIOC_QUERYCTRL */ +int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) +{ + struct v4l2_query_ext_ctrl qec = { qc->id }; + int rc; + + rc = v4l2_query_ext_ctrl(hdl, &qec); + if (rc) + return rc; + + qc->id = qec.id; + qc->type = qec.type; + qc->flags = qec.flags; + strlcpy(qc->name, qec.name, sizeof(qc->name)); + switch (qc->type) { + case V4L2_CTRL_TYPE_INTEGER: + case V4L2_CTRL_TYPE_BOOLEAN: + case V4L2_CTRL_TYPE_MENU: + case V4L2_CTRL_TYPE_INTEGER_MENU: + case V4L2_CTRL_TYPE_STRING: + case V4L2_CTRL_TYPE_BITMASK: + qc->minimum = qec.minimum; + qc->maximum = qec.maximum; + qc->step = qec.step; + qc->default_value = qec.default_value; + break; + default: + qc->minimum = 0; + qc->maximum = 0; + qc->step = 0; + qc->default_value = 0; + break; + } return 0; } EXPORT_SYMBOL(v4l2_queryctrl); int v4l2_subdev_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) { - if (qc->id & V4L2_CTRL_FLAG_NEXT_CTRL) + if (qc->id & (V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND)) return -EINVAL; return v4l2_queryctrl(sd->ctrl_handler, qc); } @@ -2339,7 +2443,8 @@ EXPORT_SYMBOL(v4l2_subdev_querymenu); Find the controls in the control array and do some basic checks. */ static int prepare_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *cs, - struct v4l2_ctrl_helper *helpers) + struct v4l2_ctrl_helper *helpers, + bool get) { struct v4l2_ctrl_helper *h; bool have_clusters = false; @@ -2371,6 +2476,13 @@ static int prepare_ext_ctrls(struct v4l2_ctrl_handler *hdl, have_clusters = true; if (ctrl->cluster[0] != ctrl) ref = find_ref_lock(hdl, ctrl->cluster[0]->id); + if (ctrl->is_ptr && !ctrl->is_string && c->size < ctrl->elem_size) { + if (get) { + c->size = ctrl->elem_size; + return -ENOSPC; + } + return -EFAULT; + } /* Store the ref to the master control of the cluster */ h->mref = ref; h->ctrl = ctrl; @@ -2451,7 +2563,7 @@ int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *cs return -ENOMEM; } - ret = prepare_ext_ctrls(hdl, cs, helpers); + ret = prepare_ext_ctrls(hdl, cs, helpers, true); cs->error_idx = cs->count; for (i = 0; !ret && i < cs->count; i++) @@ -2513,11 +2625,11 @@ static int get_ctrl(struct v4l2_ctrl *ctrl, struct v4l2_ext_control *c) int ret = 0; int i; - /* String controls are not supported. The new_to_user() and + /* Compound controls are not supported. The new_to_user() and * cur_to_user() calls below would need to be modified not to access * userspace memory when called from get_ctrl(). */ - if (ctrl->type == V4L2_CTRL_TYPE_STRING) + if (!ctrl->is_int) return -EINVAL; if (ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY) @@ -2543,7 +2655,7 @@ int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *control) struct v4l2_ext_control c; int ret; - if (ctrl == NULL || !type_is_int(ctrl)) + if (ctrl == NULL || !ctrl->is_int) return -EINVAL; ret = get_ctrl(ctrl, &c); control->value = c.value; @@ -2562,7 +2674,7 @@ s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl) struct v4l2_ext_control c; /* It's a driver bug if this happens. */ - WARN_ON(!type_is_int(ctrl)); + WARN_ON(!ctrl->is_int); c.value = 0; get_ctrl(ctrl, &c); return c.value; @@ -2698,7 +2810,7 @@ static int try_set_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, if (!helpers) return -ENOMEM; } - ret = prepare_ext_ctrls(hdl, cs, helpers); + ret = prepare_ext_ctrls(hdl, cs, helpers, false); if (!ret) ret = validate_ctrls(cs, helpers, set); if (ret && set) @@ -2803,11 +2915,11 @@ static int set_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, struct v4l2_ctrl *master = ctrl->cluster[0]; int i; - /* String controls are not supported. The user_to_new() and + /* Compound controls are not supported. The user_to_new() and * cur_to_user() calls below would need to be modified not to access * userspace memory when called from set_ctrl(). */ - if (ctrl->type == V4L2_CTRL_TYPE_STRING) + if (ctrl->is_ptr) return -EINVAL; /* Reset the 'is_new' flags of the cluster */ @@ -2849,7 +2961,7 @@ int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, struct v4l2_ext_control c; int ret; - if (ctrl == NULL || !type_is_int(ctrl)) + if (ctrl == NULL || !ctrl->is_int) return -EINVAL; if (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY) @@ -2873,7 +2985,7 @@ int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val) struct v4l2_ext_control c; /* It's a driver bug if this happens. */ - WARN_ON(!type_is_int(ctrl)); + WARN_ON(!ctrl->is_int); c.value = val; return set_ctrl_lock(NULL, ctrl, &c); } diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index a2e8f038a8ed..9024daebdf3b 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -73,6 +73,12 @@ typedef void (*v4l2_ctrl_notify_fnc)(struct v4l2_ctrl *ctrl, void *priv); * members are in 'automatic' mode or 'manual' mode. This is * used for autogain/gain type clusters. Drivers should never * set this flag directly. + * @is_int: If set, then this control has a simple integer value (i.e. it + * uses ctrl->val). + * @is_string: If set, then this control has type V4L2_CTRL_TYPE_STRING. + * @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 + * v4l2_ext_control uses field p to point to the data. * @has_volatiles: If set, then one or more members of the cluster are volatile. * Drivers should never touch this flag. * @call_notify: If set, then call the handler's notify function whenever the @@ -90,6 +96,7 @@ typedef void (*v4l2_ctrl_notify_fnc)(struct v4l2_ctrl *ctrl, void *priv); * @maximum: The control's maximum value. * @default_value: The control's default value. * @step: The control's step value for non-menu controls. + * @elem_size: The size in bytes of the control. * @menu_skip_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 @@ -104,7 +111,6 @@ typedef void (*v4l2_ctrl_notify_fnc)(struct v4l2_ctrl *ctrl, void *priv); * @cur: The control's current value. * @val: The control's new s32 value. * @val64: The control's new s64 value. - * @string: The control's new string value. * @priv: The control's private pointer. For use by the driver. It is * untouched by the control framework. Note that this pointer is * not freed when the control is deleted. Should this be needed @@ -123,6 +129,9 @@ struct v4l2_ctrl { unsigned int is_new:1; unsigned int is_private:1; unsigned int is_auto:1; + unsigned int is_int:1; + unsigned int is_string:1; + unsigned int is_ptr:1; unsigned int has_volatiles:1; unsigned int call_notify:1; unsigned int manual_mode_value:8; @@ -132,6 +141,7 @@ struct v4l2_ctrl { const char *name; enum v4l2_ctrl_type type; s64 minimum, maximum, default_value; + u32 elem_size; union { u64 step; u64 menu_skip_mask; @@ -141,17 +151,19 @@ struct v4l2_ctrl { const s64 *qmenu_int; }; unsigned long flags; + void *priv; union { s32 val; s64 val64; char *string; - } cur; + void *p; + }; union { s32 val; s64 val64; char *string; - }; - void *priv; + void *p; + } cur; }; /** struct v4l2_ctrl_ref - The control reference. @@ -212,6 +224,7 @@ struct v4l2_ctrl_handler { * @max: The control's maximum value. * @step: The control's step value for non-menu controls. * @def: The control's default value. + * @elem_size: The size in bytes of the control. * @flags: The control's flags. * @menu_skip_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, @@ -235,6 +248,7 @@ struct v4l2_ctrl_config { s64 max; u64 step; s64 def; + u32 elem_size; u32 flags; u64 menu_skip_mask; const char * const *qmenu; @@ -659,6 +673,7 @@ unsigned int v4l2_ctrl_poll(struct file *file, struct poll_table_struct *wait); /* Helpers for ioctl_ops. If hdl == NULL then they will all return -EINVAL. */ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc); +int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctrl *qc); int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm); int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *ctrl); int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, |