From patchwork Mon Aug 29 14:05:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Verkuil X-Patchwork-Id: 12957970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC711ECAAD2 for ; Mon, 29 Aug 2022 14:05:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230116AbiH2OFX (ORCPT ); Mon, 29 Aug 2022 10:05:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230127AbiH2OFU (ORCPT ); Mon, 29 Aug 2022 10:05:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31F6316582 for ; Mon, 29 Aug 2022 07:05:18 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B6AD960ED4 for ; Mon, 29 Aug 2022 14:05:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A2688C433D6; Mon, 29 Aug 2022 14:05:16 +0000 (UTC) Message-ID: <6a8a263a-32ba-98a5-c33c-1db6c828f4c9@xs4all.nl> Date: Mon, 29 Aug 2022 16:05:14 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.1.2 Content-Language: en-US To: Linux Media Mailing List Cc: Xavier Roumegue From: Hans Verkuil Subject: [PATCH] v4l2-ctrls: drop 'elems' argument from control type ops. Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 --- 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