From patchwork Tue Jul 9 05:24:40 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arun Kumar K X-Patchwork-Id: 19186 X-Patchwork-Delegate: kamil@wypas.org Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1UwQ3s-0002BK-7X; Tue, 09 Jul 2013 07:02:00 +0200 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.72/mailfrontend-7) with esmtp id 1UwQ3p-0003Ky-3B; Tue, 09 Jul 2013 07:02:00 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752643Ab3GIFBw (ORCPT + 1 other); Tue, 9 Jul 2013 01:01:52 -0400 Received: from mailout3.samsung.com ([203.254.224.33]:51758 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751185Ab3GIFBr (ORCPT ); Tue, 9 Jul 2013 01:01:47 -0400 Received: from epcpsbgr3.samsung.com (u143.gpu120.samsung.co.kr [203.254.230.143]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MPN00INOKM46AI0@mailout3.samsung.com> for linux-media@vger.kernel.org; Tue, 09 Jul 2013 14:01:39 +0900 (KST) Received: from epcpsbgm2.samsung.com ( [172.20.52.126]) by epcpsbgr3.samsung.com (EPCPMTA) with SMTP id CD.F3.03969.3399BD15; Tue, 09 Jul 2013 14:01:39 +0900 (KST) X-AuditID: cbfee68f-b7f436d000000f81-4e-51db9933b1e7 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 67.2B.21068.3399BD15; Tue, 09 Jul 2013 14:01:39 +0900 (KST) Received: from chromeserver-PowerEdge-T410.sisodomain.com ([107.108.73.106]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MPN0024ZKMDT060@mmp2.samsung.com>; Tue, 09 Jul 2013 14:01:39 +0900 (KST) From: Arun Kumar K To: linux-media@vger.kernel.org Cc: k.debski@samsung.com, jtp.park@samsung.com, s.nawrocki@samsung.com, hverkuil@xs4all.nl, avnd.kiran@samsung.com, arunkk.samsung@gmail.com Subject: [PATCH v5 6/8] [media] V4L: Add support for integer menu controls with standard menu items Date: Tue, 09 Jul 2013 10:54:40 +0530 Message-id: <1373347482-9264-7-git-send-email-arun.kk@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1373347482-9264-1-git-send-email-arun.kk@samsung.com> References: <1373347482-9264-1-git-send-email-arun.kk@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrELMWRmVeSWpSXmKPExsWyRsSkTtd45u1Ag89HVCxebLzFbvFydh+z xanJz5gsjqy9ymTx4/UFNoueDVtZLQ6/aWd1YPfYOesuu0ffllWMHp83yXmc+vqZPYAlissm JTUnsyy1SN8ugStj9aZnbAUdihXdvY/ZGhgfS3UxcnJICJhIHNm3gAXCFpO4cG89WxcjF4eQ wFJGiQkHFrLAFJ3ZtooVIjGdUWLjzqNMEM5sJomZd04yglSxCWhI3DvxmBXEFhGQl3jSe4MN xGYW6GOUmLnaEcQWFkiVeHV/IjuIzSKgKjF3egNYDa+Ak8TOcw2MENsUJbqfTQCLcwo4S/y4 fhdsphBQze2JX8CukBCYzC4x5dM6JohBAhLfJh8COpUDKCErsekAM8QcSYmDK26wTGAUXsDI sIpRNLUguaA4Kb3IWK84Mbe4NC9dLzk/dxMjMLxP/3vWv4Px7gHrQ4zJQOMmMkuJJucD4yOv JN7Q2MzIwtTE1NjI3NKMNGElcV61FutAIYH0xJLU7NTUgtSi+KLSnNTiQ4xMHJxSDYxygo83 ad1wlr628gi7ysFVCioHFnqdfNJhfCNs177wpl2Cq58L3ztZJ3T1A79tsMOWiIyzL6zC3fJm 7d4sw7rmbWx3z/2K6Laon1t8JvzJOyT9XvCEyk4jxt3v97qfW77+TW37jvRTCZb7zJyXcTYp hD2YtaZW7frJNdO69u5dv1dZcpqA9rUtSizFGYmGWsxFxYkA2fk3cIUCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrPIsWRmVeSWpSXmKPExsVy+t9jQV3jmbcDDT6vlrV4sfEWu8XL2X3M FqcmP2OyOLL2KpPFj9cX2Cx6NmxltTj8pp3Vgd1j56y77B59W1YxenzeJOdx6utn9gCWqAZG m4zUxJTUIoXUvOT8lMy8dFsl7+B453hTMwNDXUNLC3MlhbzE3FRbJRefAF23zBygE5QUyhJz SoFCAYnFxUr6dpgmhIa46VrANEbo+oYEwfUYGaCBhDWMGas3PWMr6FCs6O59zNbA+Fiqi5GT Q0LAROLMtlWsELaYxIV769m6GLk4hASmM0ps3HmUCcKZzSQx885JRpAqNgENiXsnHoN1iAjI SzzpvcEGYjML9DFKzFztCGILC6RKvLo/kR3EZhFQlZg7vQGshlfASWLnuQZGiG2KEt3PJoDF OQWcJX5cvws2Uwio5vbEL6wTGHkXMDKsYhRNLUguKE5KzzXSK07MLS7NS9dLzs/dxAiOnmfS OxhXNVgcYhTgYFTi4f1w+VagEGtiWXFl7iFGCQ5mJRHeF6q3A4V4UxIrq1KL8uOLSnNSiw8x JgNdNZFZSjQ5HxjZeSXxhsYm5qbGppYmFiZmlqQJK4nzHmy1DhQSSE8sSc1OTS1ILYLZwsTB KdXAOLWFbavJ5QLOrPmHuLvXZ5Ue7LdnnXB7j45k5neupKPdWjFPWjgl7M2jYr9E/j6WrH/w zZTQJPPDxo7H7e91zNKQsmXbkX3y+s8ln285RRSYf4j8YJh15qniP5UrrIeqzdR2/vt6JSru 3bXFl188L+7dcEsr5c6LkA83g/a4Cu87L5WqtzJkkRJLcUaioRZzUXEiAB9vZD7iAgAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2013.7.9.44815 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODY_SIZE_4000_4999 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, FROM_NAME_PHRASE 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MULTIPLE_RCPTS_CC_X2 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_NO_WWW 0, __URI_NS ' From: Sylwester Nawrocki The patch modifies the helper function v4l2_ctrl_new_std_menu to accept integer menu controls with standard menu items. Signed-off-by: Sylwester Nawrocki Signed-off-by: Arun Kumar K Acked-by: Hans Verkuil --- Documentation/video4linux/v4l2-controls.txt | 21 ++++++++++---------- drivers/media/v4l2-core/v4l2-ctrls.c | 28 ++++++++++++++++++++++++--- 2 files changed, 36 insertions(+), 13 deletions(-) diff --git a/Documentation/video4linux/v4l2-controls.txt b/Documentation/video4linux/v4l2-controls.txt index 676f873..06cf3ac 100644 --- a/Documentation/video4linux/v4l2-controls.txt +++ b/Documentation/video4linux/v4l2-controls.txt @@ -124,26 +124,27 @@ You add non-menu controls by calling v4l2_ctrl_new_std: const struct v4l2_ctrl_ops *ops, u32 id, s32 min, s32 max, u32 step, s32 def); -Menu controls are added by calling v4l2_ctrl_new_std_menu: +Menu and integer menu controls are added by calling v4l2_ctrl_new_std_menu: struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl, const struct v4l2_ctrl_ops *ops, u32 id, s32 max, s32 skip_mask, s32 def); -Or alternatively for integer menu controls, by calling v4l2_ctrl_new_int_menu: +Menu controls with a driver specific menu are added by calling +v4l2_ctrl_new_std_menu_items: + + 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 skip_mask, s32 def, const char * const *qmenu); + +Integer menu controls with a driver specific menu can be added by calling +v4l2_ctrl_new_int_menu: 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); -Standard menu controls with a driver specific menu are added by calling -v4l2_ctrl_new_std_menu_items: - - 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 skip_mask, s32 def, const char * const *qmenu); - These functions are typically called right after the v4l2_ctrl_handler_init: static const s64 exp_bias_qmenu[] = { diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index fccd08b..e03a2e8 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -552,6 +552,20 @@ const char * const *v4l2_ctrl_get_menu(u32 id) } EXPORT_SYMBOL(v4l2_ctrl_get_menu); +/* + * Returns NULL or an s64 type array containing the menu for given + * control ID. The total number of the menu items is returned in @len. + */ +const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len) +{ + switch (id) { + default: + *len = 0; + return NULL; + }; +} +EXPORT_SYMBOL(v4l2_ctrl_get_int_menu); + /* Return the control name. */ const char *v4l2_ctrl_get_name(u32 id) { @@ -1712,20 +1726,28 @@ 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) { - const char * const *qmenu = v4l2_ctrl_get_menu(id); + const char * const *qmenu = NULL; + const s64 *qmenu_int = NULL; const char *name; enum v4l2_ctrl_type type; + unsigned int qmenu_int_len; s32 min; s32 step; u32 flags; v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags); - if (type != V4L2_CTRL_TYPE_MENU) { + + if (type == V4L2_CTRL_TYPE_MENU) + qmenu = v4l2_ctrl_get_menu(id); + else if (type == V4L2_CTRL_TYPE_INTEGER_MENU) + qmenu_int = v4l2_ctrl_get_int_menu(id, &qmenu_int_len); + + if ((!qmenu && !qmenu_int) || (qmenu_int && max > qmenu_int_len)) { handler_set_err(hdl, -EINVAL); return NULL; } return v4l2_ctrl_new(hdl, ops, id, name, type, - 0, max, mask, def, flags, qmenu, NULL, NULL); + 0, max, mask, def, flags, qmenu, qmenu_int, NULL); } EXPORT_SYMBOL(v4l2_ctrl_new_std_menu);