From patchwork Wed Apr 10 17:19:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Tissoires X-Patchwork-Id: 13624916 X-Patchwork-Delegate: jikos@jikos.cz 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 84BDA1802CF; Wed, 10 Apr 2024 17:20:01 +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=1712769602; cv=none; b=QfeeRc+UrdrjjKrGVwBGBa2VruYOXWxNsa45UQI8hkc3F/vC6GR0bTkEcfHY60jfSQfHMaExYY7chNK3y1M8eLmAu/wMAZWrRDMRYD83pT5ToBUb5lmilhKiKxjAj2/X0n7ARM+H4GefI9Z21taWYCan1WsU0BDukea2phA3GXY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712769602; c=relaxed/simple; bh=3thyF8TXi2zqo/LMZKFE+HSC98gQ0GfLX2rEdsYzQSA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=es2o613xR/XUe4PDd2yXtwZN8rwknqhb0RQGo10jsVC2IpOmjwNwEO+Jc79dGia6ZQUQm1GFlaeAlC0rrBD+Q65a7SXAicnM6B5nFT/PYi7PHiAtRRUqcgyOvX/uE4l+b0j6hQrteJ7sUrMLVk5jRzcbzeCWfBVkLaW4M6Fs2jg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UFxkdC1z; 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="UFxkdC1z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47940C433A6; Wed, 10 Apr 2024 17:20:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712769601; bh=3thyF8TXi2zqo/LMZKFE+HSC98gQ0GfLX2rEdsYzQSA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=UFxkdC1z/1kzNDFHk/lL9Acl/OWASq+lO3vjVB3EzB5Ae0cx45LgvXiOMccVQtl1g Tb19YvxSbUMzCllxAozmZ6oIyfgOYulnX72u/WiqVadRdNytf6zaS6BXCkHXrgroOe NAs8MSYBwct3e7FYN80+PGP9eBfBURg7C0wr/F7DdT+cn95frKtIz6yww0VKy0/vPx 0ok64eLaZ5x1MPHrxeCvgiPgJwRxw/xvq7YkFsir5K6ZP/An66dsWnlJ3WDGUJ19Ic GT8TafZAeQsEbXXJkgSF1elA/k+amsu3smKMJEpUglwecnclSx3Sm6VAqpyx2Uj+XP mhUoHFHXOdOFQ== From: Benjamin Tissoires Date: Wed, 10 Apr 2024 19:19:25 +0200 Subject: [PATCH 05/18] HID: bpf: add in-tree HID-BPF fix for the IOGear Kaliber Gaming MMOmentum mouse Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240410-bpf_sources-v1-5-a8bf16033ef8@kernel.org> References: <20240410-bpf_sources-v1-0-a8bf16033ef8@kernel.org> In-Reply-To: <20240410-bpf_sources-v1-0-a8bf16033ef8@kernel.org> To: Jiri Kosina , Benjamin Tissoires , Shuah Khan , Peter Hutterer Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1712769589; l=2107; i=bentiss@kernel.org; s=20230215; h=from:subject:message-id; bh=3thyF8TXi2zqo/LMZKFE+HSC98gQ0GfLX2rEdsYzQSA=; b=jhTpFpQs9b6BoaUe/jvmEzLqj2oCWq84Eg42H5tmhv1rdYa6AH3HhdHhdeZUxrxURtkSl3Z/D ZsgdHI0Mwr5CcUUp+rPiabsXUHmNlFIerl5uiE74pUhh1Llm9Qr2rAw X-Developer-Key: i=bentiss@kernel.org; a=ed25519; pk=7D1DyAVh6ajCkuUTudt/chMuXWIJHlv2qCsRkIizvFw= Allows to export more than 5 buttons on this 12 buttons mouse. Signed-off-by: Benjamin Tissoires --- .../hid/bpf/progs/IOGEAR__Kaliber-MMOmentum.bpf.c | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/drivers/hid/bpf/progs/IOGEAR__Kaliber-MMOmentum.bpf.c b/drivers/hid/bpf/progs/IOGEAR__Kaliber-MMOmentum.bpf.c new file mode 100644 index 000000000000..225cbefdbf0e --- /dev/null +++ b/drivers/hid/bpf/progs/IOGEAR__Kaliber-MMOmentum.bpf.c @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2023 Benjamin Tissoires + */ + +#include "vmlinux.h" +#include "hid_bpf.h" +#include "hid_bpf_helpers.h" +#include + +#define VID_IOGEAR 0x258A /* VID is shared with SinoWealth and Glorious and prob others */ +#define PID_MOMENTUM 0x0027 + +HID_BPF_CONFIG( + HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, VID_IOGEAR, PID_MOMENTUM) +); + +/* + * The IOGear Kaliber Gaming MMOmentum Pro mouse has multiple buttons (12) + * but only 5 are accessible out of the box because the report descriptor + * marks the other buttons as constants. + * We just fix the report descriptor to enable those missing 7 buttons. + */ + +SEC("fmod_ret/hid_bpf_rdesc_fixup") +int BPF_PROG(hid_fix_rdesc, struct hid_bpf_ctx *hctx) +{ + const u8 offsets[] = {84, 112, 140}; + __u8 *data = hid_bpf_get_data(hctx, 0 /* offset */, 4096 /* size */); + + if (!data) + return 0; /* EPERM check */ + + /* if not Keyboard */ + if (data[3] != 0x06) + return 0; + + for (int idx = 0; idx < ARRAY_SIZE(offsets); idx++) { + u8 offset = offsets[idx]; + + /* if Input (Cnst,Var,Abs) , make it Input (Data,Var,Abs) */ + if (data[offset] == 0x81 && data[offset + 1] == 0x03) + data[offset + 1] = 0x02; + } + + return 0; +} + +SEC("syscall") +int probe(struct hid_bpf_probe_args *ctx) +{ + /* only bind to the keyboard interface */ + ctx->retval = ctx->rdesc_size != 213; + if (ctx->retval) + ctx->retval = -EINVAL; + + return 0; +} + +char _license[] SEC("license") = "GPL";