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From: Ricardo Ribalda <ribalda@chromium.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Ricardo Ribalda <ribalda@chromium.org>,
	linux-media@vger.kernel.org, Yunke Cao <yunkec@chromium.org>,
	linux-kernel@vger.kernel.org,
	Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: [PATCH v2 4/7] media: uvcvideo: Refactor uvc_ctrl_mappings_uvcXX
Date: Thu, 05 Jan 2023 14:52:55 +0100	[thread overview]
Message-ID: <20230105-uvc-gcc5-v2-4-2ba6c660d6f5@chromium.org> (raw)
In-Reply-To: <20230105-uvc-gcc5-v2-0-2ba6c660d6f5@chromium.org>

Convert the array of structs into an array of pointers, that way the
mappings can be reused.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
 drivers/media/usb/uvc/uvc_ctrl.c | 81 +++++++++++++++++++---------------------
 1 file changed, 39 insertions(+), 42 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 2ebe5cc18ad9..9af64f7a23d3 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -723,34 +723,40 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
 	},
 };
 
-static const struct uvc_control_mapping uvc_ctrl_mappings_uvc11[] = {
-	{
-		.id		= V4L2_CID_POWER_LINE_FREQUENCY,
-		.entity		= UVC_GUID_UVC_PROCESSING,
-		.selector	= UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
-		.size		= 2,
-		.offset		= 0,
-		.v4l2_type	= V4L2_CTRL_TYPE_MENU,
-		.data_type	= UVC_CTRL_DATA_TYPE_ENUM,
-		.menu_info	= power_line_frequency_controls,
-		.menu_mask	= GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
-					  V4L2_CID_POWER_LINE_FREQUENCY_DISABLED),
-	},
+static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_uvc11 = {
+	.id		= V4L2_CID_POWER_LINE_FREQUENCY,
+	.entity		= UVC_GUID_UVC_PROCESSING,
+	.selector	= UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
+	.size		= 2,
+	.offset		= 0,
+	.v4l2_type	= V4L2_CTRL_TYPE_MENU,
+	.data_type	= UVC_CTRL_DATA_TYPE_ENUM,
+	.menu_info	= power_line_frequency_controls,
+	.menu_mask	= GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
+				  V4L2_CID_POWER_LINE_FREQUENCY_DISABLED),
 };
 
-static const struct uvc_control_mapping uvc_ctrl_mappings_uvc15[] = {
-	{
-		.id		= V4L2_CID_POWER_LINE_FREQUENCY,
-		.entity		= UVC_GUID_UVC_PROCESSING,
-		.selector	= UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
-		.size		= 2,
-		.offset		= 0,
-		.v4l2_type	= V4L2_CTRL_TYPE_MENU,
-		.data_type	= UVC_CTRL_DATA_TYPE_ENUM,
-		.menu_info	= power_line_frequency_controls,
-		.menu_mask	= GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_AUTO,
-					  V4L2_CID_POWER_LINE_FREQUENCY_DISABLED),
-	},
+static const struct uvc_control_mapping *uvc_ctrl_mappings_uvc11[] = {
+	&uvc_ctrl_power_line_mapping_uvc11,
+	NULL, /* Sentinel */
+};
+
+static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_uvc15 = {
+	.id		= V4L2_CID_POWER_LINE_FREQUENCY,
+	.entity		= UVC_GUID_UVC_PROCESSING,
+	.selector	= UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
+	.size		= 2,
+	.offset		= 0,
+	.v4l2_type	= V4L2_CTRL_TYPE_MENU,
+	.data_type	= UVC_CTRL_DATA_TYPE_ENUM,
+	.menu_info	= power_line_frequency_controls,
+	.menu_mask	= GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_AUTO,
+				  V4L2_CID_POWER_LINE_FREQUENCY_DISABLED),
+};
+
+static const struct uvc_control_mapping *uvc_ctrl_mappings_uvc15[] = {
+	&uvc_ctrl_power_line_mapping_uvc15,
+	NULL, /* Sentinel */
 };
 
 /* ------------------------------------------------------------------------
@@ -2506,8 +2512,7 @@ static void uvc_ctrl_prune_entity(struct uvc_device *dev,
 static void uvc_ctrl_init_ctrl(struct uvc_video_chain *chain,
 			       struct uvc_control *ctrl)
 {
-	const struct uvc_control_mapping *mappings;
-	unsigned int num_mappings;
+	const struct uvc_control_mapping **mappings;
 	unsigned int i;
 
 	/*
@@ -2574,21 +2579,13 @@ static void uvc_ctrl_init_ctrl(struct uvc_video_chain *chain,
 	}
 
 	/* Finally process version-specific mappings. */
-	if (chain->dev->uvc_version < 0x0150) {
-		mappings = uvc_ctrl_mappings_uvc11;
-		num_mappings = ARRAY_SIZE(uvc_ctrl_mappings_uvc11);
-	} else {
-		mappings = uvc_ctrl_mappings_uvc15;
-		num_mappings = ARRAY_SIZE(uvc_ctrl_mappings_uvc15);
-	}
-
-	for (i = 0; i < num_mappings; ++i) {
-		const struct uvc_control_mapping *mapping = &mappings[i];
+	mappings = (chain->dev->uvc_version < 0x0150) ? uvc_ctrl_mappings_uvc11
+						      : uvc_ctrl_mappings_uvc15;
 
-		if (uvc_entity_match_guid(ctrl->entity, mapping->entity) &&
-		    ctrl->info.selector == mapping->selector)
-			__uvc_ctrl_add_mapping(chain, ctrl, mapping);
-	}
+	for (i = 0; mappings[i]; ++i)
+		if (uvc_entity_match_guid(ctrl->entity, mappings[i]->entity) &&
+		    ctrl->info.selector == mappings[i]->selector)
+			__uvc_ctrl_add_mapping(chain, ctrl, mappings[i]);
 }
 
 /*

-- 
2.39.0.314.g84b9a713c41-goog-b4-0.11.0-dev-696ae

  parent reply	other threads:[~2023-01-05 13:57 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-05 13:52 [PATCH v2 0/7] media: uvcvideo: Hot fixes for top of next/uvc + std menus Ricardo Ribalda
2023-01-05 13:52 ` [PATCH v2 1/7] Revert "media: uvcvideo: Fix power line control for Lenovo Integrated Camera" Ricardo Ribalda
2023-01-05 13:52 ` [PATCH v2 2/7] Revert "media: uvcvideo: Implement mask for V4L2_CTRL_TYPE_MENU" Ricardo Ribalda
2023-01-05 13:52 ` [PATCH v2 3/7] media: uvcvideo: Implement mask for V4L2_CTRL_TYPE_MENU Ricardo Ribalda
2023-01-06 20:22   ` Laurent Pinchart
2023-01-05 13:52 ` Ricardo Ribalda [this message]
2023-01-06 20:45   ` [PATCH v2 4/7] media: uvcvideo: Refactor uvc_ctrl_mappings_uvcXX Laurent Pinchart
2023-01-05 13:52 ` [PATCH v2 5/7] media: uvcvideo: Refactor power_line_frequency_controls_limited Ricardo Ribalda
2023-01-06 20:56   ` Laurent Pinchart
2023-01-05 13:52 ` [PATCH v2 6/7] media: uvcvideo: Fix power line control for Lenovo Integrated Camera Ricardo Ribalda
2023-01-06 20:59   ` Laurent Pinchart
2023-01-05 13:52 ` [PATCH v2 7/7] media: uvcvideo: Use standard names for menus Ricardo Ribalda
2023-01-06 21:31   ` Laurent Pinchart

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