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Wed, 10 May 2023 13:51:11 +0000 From: Javier Carrasco Subject: [PATCH 0/4] Input: support virtual objects on touchscreens Date: Wed, 10 May 2023 15:50:45 +0200 Message-Id: <20230510-feature-ts_virtobj_patch-v1-0-5ae5e81bc264@wolfvision.net> X-B4-Tracking: v=1; b=H4sIADWhW2QC/x2NQQrDIBBFrxJcd4pak0CvUkIY7aROFyaMVgohd 6/p8vF5/+0qkzBlde92JVQ585oamEunQsT0IuBnY2W1veneaFgIy0cISp4rS1n9e96whAhkh7F 3GpFGp5ruMRN4wRTieVCHqwMJ5pw2oYW//+pjOo4f97Ir9IUAAAA= To: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Henrik Rydberg , Bastian Hecht , Michael Riesch Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, devicetree@vger.kernel.org, Javier Carrasco X-Mailer: b4 0.12.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1683726670; l=1997; i=javier.carrasco@wolfvision.net; s=20230509; h=from:subject:message-id; bh=ax5hdrOTGsPudux6dPEA+8b4eWTi/NC3+64oRXySfD0=; b=gnm9OJXWivQ4WZkDx0sRrBVS7tu3l6gWjmMVXv5QF/bDEdQ7inaeWKUenNmTOWlg14G5LHk5G 2ENGkezwlfIBGAMztkrljCN55RJ8SUvrMIjPgzNOYtX6o5kV49TsN1d X-Developer-Key: i=javier.carrasco@wolfvision.net; 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In order to generate proper key events by overlay buttons and adjust the touch events to a clipped surface, these patches offer a documented, device-tree-based solution by means of helper functions. An implementation for a specific touchscreen driver is also included. The functions in ts-virtobj provide a simple workflow to acquire physical objects from the device tree, map them into the device driver structures as virtual objects and generate events according to the object descriptions. This solution has been tested with a JT240MHQS-E3 display, which uses the st1624 as a touchscreen and provides two overlay buttons and a frame that clips its effective surface. Signed-off-by: Javier Carrasco --- Javier Carrasco (4): Input: ts-virtobj - Add touchsreen virtual object handling dt-bindings: touchscreen: add virtual-touchscreen and virtual-buttons properties Input: st1232 - add virtual touchscreen and buttons handling dt-bindings: input: touchscreen: st1232: add example with ts-virtobj .../input/touchscreen/sitronix,st1232.yaml | 40 +++ .../bindings/input/touchscreen/touchscreen.yaml | 54 ++++ MAINTAINERS | 7 + drivers/input/touchscreen/Kconfig | 9 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/st1232.c | 87 +++-- drivers/input/touchscreen/ts-virtobj.c | 360 +++++++++++++++++++++ include/linux/input/ts-virtobj.h | 95 ++++++ 8 files changed, 635 insertions(+), 18 deletions(-) --- base-commit: ac9a78681b921877518763ba0e89202254349d1b change-id: 20230510-feature-ts_virtobj_patch-e267540aae74 Best regards,