From nobody Tue Nov 26 15:31:51 2024 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CFD871DF990; Thu, 17 Oct 2024 16:35:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729182912; cv=none; b=C/gPayZD0UHeDP8mz3aE2DXwJ+fogPNJsqBzQf12+qYrx6kFWRH9kBnNsFp23KNE7cwWRLihKBr2MB+fB4cU4rhNvOWKF8sdkKJO4rAKeqhRD9J4WxkgGly5nZA7vGL5x3KnGZpAgXVn2GjQwqW/f/ZOwY9aQb9XNasb6BprBPs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729182912; c=relaxed/simple; bh=EMTxQfF0LlVN3f5EpYmdrDjwAeI5+S5pl3WhboVvu/Q=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=uw6w7yct5OkM5qD7ogv5P5jiCVS81jh2yw6G7vQC9Tp+2yKOuOyVDuNZfBE9mL6fOq4/GL4Gd9mBjcpPqNx82xH07kcaUP7BzNPzln2yjqoyW0CT17WdpUoiYIydaRMhXJln0fUapeF1PGh9s8QVW9dYBJWtxI4jIp627EgxMvg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JoEdyVSP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JoEdyVSP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 513E4C4CEC3; Thu, 17 Oct 2024 16:35:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729182912; bh=EMTxQfF0LlVN3f5EpYmdrDjwAeI5+S5pl3WhboVvu/Q=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=JoEdyVSP9+uUONZ0aFhl9p9wjCvIROm3wqAhP3NwUFFAofFmZnA/9R93/mlBXkRW7 +auY0Nb6GbpEDBfVIiD8MwNtcOpnFJZjYotwZxmoIPVLb6SQyOhGRgkfEfjTCWcbQV BS4eFhyPooGq4SDCHXgwi0yraz5d3j2wwoM9bTpP7LbZIyWYf/EQkVyIA3FxFrg0xu RpIZVeFN/6WYQmf0qV32briMt24bARby0ZQjdAjQSLawQYKYF2ot6/L9x4eu6Wx/Uy 1a/NPi4ivMWlpfsTqEHbOiOpig0HDjyLtuh9EdfR3o4MD/CDIwm6dHUXTjdkd+WZVX 7ZqZjgm7bc2QQ== From: Benjamin Tissoires Date: Thu, 17 Oct 2024 18:34:59 +0200 Subject: [PATCH v2 2/3] HID: bpf: Fix Rapoo M50 Plus Silent side buttons Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241017-import_bpf_6-13-v2-2-6a7acb89a97f@kernel.org> References: <20241017-import_bpf_6-13-v2-0-6a7acb89a97f@kernel.org> In-Reply-To: <20241017-import_bpf_6-13-v2-0-6a7acb89a97f@kernel.org> To: Jiri Kosina Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, Benjamin Tissoires , =?utf-8?q?Jos=C3=A9_Exp=C3=B3sito?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1729182907; l=8376; i=bentiss@kernel.org; s=20230215; h=from:subject:message-id; bh=EMTxQfF0LlVN3f5EpYmdrDjwAeI5+S5pl3WhboVvu/Q=; b=FxHfhRmIeD11tUwIpyKOJ2VhNEk3fxCLTvFex50hS59Y8pU7NsEST4QS34UqNCRJT8wQsgeac pZccISPOLzQAzqnuMuVpSxflpqyRqrIgUyqelh0FRYdtswfUHFcEurq X-Developer-Key: i=bentiss@kernel.org; a=ed25519; pk=7D1DyAVh6ajCkuUTudt/chMuXWIJHlv2qCsRkIizvFw= The Rapoo M50 Plus Silent mouse has 2 side buttons in addition to the left, right and middles buttons. However, its original HID descriptor has a Usage Maximum of 3, preventing the side buttons to work. This HID-BPF driver changes that usage to 5. Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1015 Link: https://gitlab.freedesktop.org/libevdev/udev-hid-bpf/-/merge_requests= /116 Signed-off-by: Jos=C3=A9 Exp=C3=B3sito Signed-off-by: Benjamin Tissoires --- no changes in v2 --- drivers/hid/bpf/progs/Rapoo__M50-Plus-Silent.bpf.c | 148 +++++++++++++++++= ++++ 1 file changed, 148 insertions(+) diff --git a/drivers/hid/bpf/progs/Rapoo__M50-Plus-Silent.bpf.c b/drivers/h= id/bpf/progs/Rapoo__M50-Plus-Silent.bpf.c new file mode 100644 index 0000000000000000000000000000000000000000..6b379e45f531dbe843fe59fd98c= c12d3fd3c8cc8 --- /dev/null +++ b/drivers/hid/bpf/progs/Rapoo__M50-Plus-Silent.bpf.c @@ -0,0 +1,148 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2024 Jos=C3=A9 Exp=C3=B3sito + */ + +#include "vmlinux.h" +#include "hid_bpf.h" +#include "hid_bpf_helpers.h" +#include + +#define VID_RAPOO 0x24AE +#define PID_M50 0x2015 +#define RDESC_SIZE 186 + +HID_BPF_CONFIG( + HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, VID_RAPOO, PID_M50) +); + +/* + * The Rapoo M50 Plus Silent mouse has 2 side buttons in addition to the l= eft, + * right and middle buttons. However, its original HID descriptor has a Us= age + * Maximum of 3, preventing the side buttons to work. This HID-BPF driver + * changes that usage to 5. + * + * For reference, this is the original report descriptor: + * + * 0x05, 0x01, // Usage Page (Generic Desktop) 0 + * 0x09, 0x02, // Usage (Mouse) 2 + * 0xa1, 0x01, // Collection (Application) 4 + * 0x85, 0x01, // Report ID (1) 6 + * 0x09, 0x01, // Usage (Pointer) 8 + * 0xa1, 0x00, // Collection (Physical) 10 + * 0x05, 0x09, // Usage Page (Button) 12 + * 0x19, 0x01, // Usage Minimum (1) 14 + * 0x29, 0x03, // Usage Maximum (3) 16 <- change t= o 0x05 + * 0x15, 0x00, // Logical Minimum (0) 18 + * 0x25, 0x01, // Logical Maximum (1) 20 + * 0x75, 0x01, // Report Size (1) 22 + * 0x95, 0x05, // Report Count (5) 24 + * 0x81, 0x02, // Input (Data,Var,Abs) 26 + * 0x75, 0x03, // Report Size (3) 28 + * 0x95, 0x01, // Report Count (1) 30 + * 0x81, 0x01, // Input (Cnst,Arr,Abs) 32 + * 0x05, 0x01, // Usage Page (Generic Desktop) 34 + * 0x09, 0x30, // Usage (X) 36 + * 0x09, 0x31, // Usage (Y) 38 + * 0x16, 0x01, 0x80, // Logical Minimum (-32767) 40 + * 0x26, 0xff, 0x7f, // Logical Maximum (32767) 43 + * 0x75, 0x10, // Report Size (16) 46 + * 0x95, 0x02, // Report Count (2) 48 + * 0x81, 0x06, // Input (Data,Var,Rel) 50 + * 0x09, 0x38, // Usage (Wheel) 52 + * 0x15, 0x81, // Logical Minimum (-127) 54 + * 0x25, 0x7f, // Logical Maximum (127) 56 + * 0x75, 0x08, // Report Size (8) 58 + * 0x95, 0x01, // Report Count (1) 60 + * 0x81, 0x06, // Input (Data,Var,Rel) 62 + * 0xc0, // End Collection 64 + * 0xc0, // End Collection 65 + * 0x05, 0x0c, // Usage Page (Consumer Devices) 66 + * 0x09, 0x01, // Usage (Consumer Control) 68 + * 0xa1, 0x01, // Collection (Application) 70 + * 0x85, 0x02, // Report ID (2) 72 + * 0x75, 0x10, // Report Size (16) 74 + * 0x95, 0x01, // Report Count (1) 76 + * 0x15, 0x01, // Logical Minimum (1) 78 + * 0x26, 0x8c, 0x02, // Logical Maximum (652) 80 + * 0x19, 0x01, // Usage Minimum (1) 83 + * 0x2a, 0x8c, 0x02, // Usage Maximum (652) 85 + * 0x81, 0x00, // Input (Data,Arr,Abs) 88 + * 0xc0, // End Collection 90 + * 0x05, 0x01, // Usage Page (Generic Desktop) 91 + * 0x09, 0x80, // Usage (System Control) 93 + * 0xa1, 0x01, // Collection (Application) 95 + * 0x85, 0x03, // Report ID (3) 97 + * 0x09, 0x82, // Usage (System Sleep) 99 + * 0x09, 0x81, // Usage (System Power Down) 101 + * 0x09, 0x83, // Usage (System Wake Up) 103 + * 0x15, 0x00, // Logical Minimum (0) 105 + * 0x25, 0x01, // Logical Maximum (1) 107 + * 0x19, 0x01, // Usage Minimum (1) 109 + * 0x29, 0x03, // Usage Maximum (3) 111 + * 0x75, 0x01, // Report Size (1) 113 + * 0x95, 0x03, // Report Count (3) 115 + * 0x81, 0x02, // Input (Data,Var,Abs) 117 + * 0x95, 0x05, // Report Count (5) 119 + * 0x81, 0x01, // Input (Cnst,Arr,Abs) 121 + * 0xc0, // End Collection 123 + * 0x05, 0x01, // Usage Page (Generic Desktop) 124 + * 0x09, 0x00, // Usage (Undefined) 126 + * 0xa1, 0x01, // Collection (Application) 128 + * 0x85, 0x05, // Report ID (5) 130 + * 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page 1) 132 + * 0x09, 0x01, // Usage (Vendor Usage 1) 135 + * 0x15, 0x81, // Logical Minimum (-127) 137 + * 0x25, 0x7f, // Logical Maximum (127) 139 + * 0x75, 0x08, // Report Size (8) 141 + * 0x95, 0x07, // Report Count (7) 143 + * 0xb1, 0x02, // Feature (Data,Var,Abs) 145 + * 0xc0, // End Collection 147 + * 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page 1) 148 + * 0x09, 0x0e, // Usage (Vendor Usage 0x0e) 151 + * 0xa1, 0x01, // Collection (Application) 153 + * 0x85, 0xba, // Report ID (186) 155 + * 0x95, 0x1f, // Report Count (31) 157 + * 0x75, 0x08, // Report Size (8) 159 + * 0x26, 0xff, 0x00, // Logical Maximum (255) 161 + * 0x15, 0x00, // Logical Minimum (0) 164 + * 0x09, 0x01, // Usage (Vendor Usage 1) 166 + * 0x91, 0x02, // Output (Data,Var,Abs) 168 + * 0x85, 0xba, // Report ID (186) 170 + * 0x95, 0x1f, // Report Count (31) 172 + * 0x75, 0x08, // Report Size (8) 174 + * 0x26, 0xff, 0x00, // Logical Maximum (255) 176 + * 0x15, 0x00, // Logical Minimum (0) 179 + * 0x09, 0x01, // Usage (Vendor Usage 1) 181 + * 0x81, 0x02, // Input (Data,Var,Abs) 183 + * 0xc0, // End Collection 185 + */ + +SEC(HID_BPF_RDESC_FIXUP) +int BPF_PROG(hid_rdesc_fixup_rapoo_m50, struct hid_bpf_ctx *hctx) +{ + __u8 *data =3D hid_bpf_get_data(hctx, 0, HID_MAX_DESCRIPTOR_SIZE); + + if (!data) + return 0; /* EPERM check */ + + if (data[17] =3D=3D 0x03) + data[17] =3D 0x05; + + return 0; +} + +HID_BPF_OPS(rapoo_m50) =3D { + .hid_rdesc_fixup =3D (void *)hid_rdesc_fixup_rapoo_m50, +}; + +SEC("syscall") +int probe(struct hid_bpf_probe_args *ctx) +{ + ctx->retval =3D ctx->rdesc_size !=3D RDESC_SIZE; + if (ctx->retval) + ctx->retval =3D -EINVAL; + + return 0; +} + +char _license[] SEC("license") =3D "GPL"; --=20 2.47.0