From patchwork Wed May 18 22:47:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= X-Patchwork-Id: 574715 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 4329CC433F5 for ; Wed, 18 May 2022 22:47:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230183AbiERWr2 (ORCPT ); Wed, 18 May 2022 18:47:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230211AbiERWrZ (ORCPT ); Wed, 18 May 2022 18:47:25 -0400 Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF6F114AF5E; Wed, 18 May 2022 15:47:15 -0700 (PDT) Received: by mail-wm1-x32a.google.com with SMTP id n6-20020a05600c3b8600b0039492b44ce7so1806035wms.5; Wed, 18 May 2022 15:47:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=aAr8shjvKRcCfv7HNBBK8SL5xstDJCBPnCo1qU9xjjY=; b=pCJGHG2ZJv5OE1aA4/fO+zDrTBGMiQbqm9gjNAWoGZ10dHc7+gTqfnJT4x62n60dgA Hmgvo+ztx1K/GO+S/kQb+EGawEf3HSnK9PLa2wZM1CdVFi5zslZFw7Sdwo6xFy3O1mD5 Q03tBbXBnEznN4ALlOQ+O1et9pcgqiS9cW3S2VRZpeWPtzg1/eEuVW8Rv/kGhC+6oVAg 6/YOzlGdKRqWMZKFUnZFeaCqInPlIhAOobNm5S1u5qgRUCE+RNQD81QLJNva52bBLupA Txp1iJURwo6fwibNKTIrNLiAmJHWwL0v+ERoPTYFNaYea3SlKg2rjbVociyCbMwwC5Nz mOHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=aAr8shjvKRcCfv7HNBBK8SL5xstDJCBPnCo1qU9xjjY=; b=IaTdwc21P2RlLIBtaXfl59ZEI4NrLANRvV7A2jzqpZemFanQzn7wEh4d+Gt18lJ3// hjcjoj4CRWWc/JsT+84kaJ9Amc/Pp7AzUi1qOFL/dolrjyDACWCbnE23T7fujmKmy8KU zrMMCkXk7CybipyBMLQlA9IDWfaHmP4UBxr9GGPeGmGIajSb44d8Ew0yOoQKPPzrMWCZ YlkNfmJZLNMp3ZMuK3Kk6cicEgwXbkFoVGomf4OjnaGPARb/KaQWxNgurgw9gHJDc5wq 62YSy1T3z/y+fCat+TEOFMDfinOvy9jpBT8rW1HYNYU+csE+iXt4R3LO/rbxZMIPk6+n HRcw== X-Gm-Message-State: AOAM531McjTxH9PlUbdPvwMMvKhdrAjOTKOQPk7C5T/KTBS5iBnn9Dn0 k2vdsoZ5rs+QSkDZ1tiBDnIa6/nWGCmctg== X-Google-Smtp-Source: ABdhPJzbzZ3DwrZU1xUQybzM/pJAAGXZQxAV2KVzC+YkIHJl99pfJKuBWyHBHnNSlxWQn4qQoploWw== X-Received: by 2002:a05:600c:4f06:b0:394:836b:1552 with SMTP id l6-20020a05600c4f0600b00394836b1552mr1745618wmq.145.1652914034293; Wed, 18 May 2022 15:47:14 -0700 (PDT) Received: from localhost.localdomain ([94.73.36.128]) by smtp.gmail.com with ESMTPSA id bi22-20020a05600c3d9600b003942a244f33sm5223419wmb.12.2022.05.18.15.47.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 May 2022 15:47:14 -0700 (PDT) From: =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= To: jikos@kernel.org Cc: benjamin.tissoires@redhat.com, spbnick@gmail.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, stefanberzl@gmail.com, =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= Subject: [PATCH for-5.19/uclogic v2 3/4] HID: uclogic: Allow to generate frame templates Date: Thu, 19 May 2022 00:47:01 +0200 Message-Id: <20220518224702.1409327-4-jose.exposito89@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220518224702.1409327-1-jose.exposito89@gmail.com> References: <20220518224702.1409327-1-jose.exposito89@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Add a new template placeholder to allow configuring the number of buttons in the drawing tablet frame and update the KUnit tests to cover the new case. Signed-off-by: José Expósito --- drivers/hid/hid-uclogic-rdesc-test.c | 36 ++++++++++++++++++++++++++++ drivers/hid/hid-uclogic-rdesc.c | 14 ++++++++--- drivers/hid/hid-uclogic-rdesc.h | 6 +++++ 3 files changed, 53 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-uclogic-rdesc-test.c b/drivers/hid/hid-uclogic-rdesc-test.c index ded59e226230..ebebffef5f8a 100644 --- a/drivers/hid/hid-uclogic-rdesc-test.c +++ b/drivers/hid/hid-uclogic-rdesc-test.c @@ -31,6 +31,10 @@ static const s32 params_pen_some[] = { [UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0xBB, }; +static const s32 params_frame_all[UCLOGIC_RDESC_PH_ID_NUM] = { + [UCLOGIC_RDESC_FRAME_PH_ID_UM] = 0xFF, +}; + static const __u8 template_empty[] = { }; static const __u8 template_small[] = { 0x00 }; static const __u8 template_no_ph[] = { 0xAA, 0xFE, 0xAA, 0xED, 0x1D }; @@ -39,6 +43,10 @@ static const __u8 template_pen_ph_end[] = { 0xAA, 0xBB, UCLOGIC_RDESC_PEN_PH_HEAD }; +static const __u8 template_btn_ph_end[] = { + 0xAA, 0xBB, UCLOGIC_RDESC_FRAME_PH_BTN_HEAD +}; + static const __u8 template_pen_all_params[] = { UCLOGIC_RDESC_PEN_PH(X_LM), 0x47, UCLOGIC_RDESC_PEN_PH(X_PM), @@ -55,6 +63,18 @@ static const __u8 expected_pen_all_params[] = { 0x00, 0xEE, 0x00, 0x00, 0x00, }; +static const __u8 template_frame_all_params[] = { + 0x01, 0x02, + UCLOGIC_RDESC_FRAME_PH_BTN, + 0x99, +}; + +static const __u8 expected_frame_all_params[] = { + 0x01, 0x02, + 0x2A, 0xFF, 0x00, + 0x99, +}; + static const __u8 template_pen_some_params[] = { 0x01, 0x02, UCLOGIC_RDESC_PEN_PH(X_LM), @@ -108,6 +128,14 @@ static struct uclogic_template_case uclogic_template_cases[] = { .param_num = ARRAY_SIZE(params_pen_all), .expected = template_pen_ph_end, }, + { + .name = "Frame button placeholder at the end, without ID", + .template = template_btn_ph_end, + .template_size = sizeof(template_btn_ph_end), + .param_list = params_frame_all, + .param_num = ARRAY_SIZE(params_frame_all), + .expected = template_btn_ph_end, + }, { .name = "All params present in the pen template", .template = template_pen_all_params, @@ -116,6 +144,14 @@ static struct uclogic_template_case uclogic_template_cases[] = { .param_num = ARRAY_SIZE(params_pen_all), .expected = expected_pen_all_params, }, + { + .name = "All params present in the frame template", + .template = template_frame_all_params, + .template_size = sizeof(template_frame_all_params), + .param_list = params_frame_all, + .param_num = ARRAY_SIZE(params_frame_all), + .expected = expected_frame_all_params, + }, { .name = "Some params present in the pen template (complete param list)", .template = template_pen_some_params, diff --git a/drivers/hid/hid-uclogic-rdesc.c b/drivers/hid/hid-uclogic-rdesc.c index 7126fba80968..3fb84ac492b4 100644 --- a/drivers/hid/hid-uclogic-rdesc.c +++ b/drivers/hid/hid-uclogic-rdesc.c @@ -979,7 +979,7 @@ const size_t uclogic_rdesc_xppen_deco01_frame_size = * uclogic_rdesc_template_apply() - apply report descriptor parameters to a * report descriptor template, creating a report descriptor. Copies the * template over to the new report descriptor and replaces every occurrence of - * UCLOGIC_RDESC_PEN_PH_HEAD, followed by an index byte, with the value from the + * the template placeholders, followed by an index byte, with the value from the * parameter list at that index. * * @template_ptr: Pointer to the template buffer. @@ -996,6 +996,7 @@ __u8 *uclogic_rdesc_template_apply(const __u8 *template_ptr, const s32 *param_list, size_t param_num) { + static const __u8 btn_head[] = {UCLOGIC_RDESC_FRAME_PH_BTN_HEAD}; static const __u8 pen_head[] = {UCLOGIC_RDESC_PEN_PH_HEAD}; __u8 *rdesc_ptr; __u8 *p; @@ -1005,12 +1006,19 @@ __u8 *uclogic_rdesc_template_apply(const __u8 *template_ptr, if (rdesc_ptr == NULL) return NULL; - for (p = rdesc_ptr; p + sizeof(pen_head) < rdesc_ptr + template_size;) { - if (memcmp(p, pen_head, sizeof(pen_head)) == 0 && + for (p = rdesc_ptr; p + sizeof(btn_head) < rdesc_ptr + template_size;) { + if (p + sizeof(pen_head) < rdesc_ptr + template_size && + memcmp(p, pen_head, sizeof(pen_head)) == 0 && p[sizeof(pen_head)] < param_num) { v = param_list[p[sizeof(pen_head)]]; put_unaligned(cpu_to_le32(v), (s32 *)p); p += sizeof(pen_head) + 1; + } else if (memcmp(p, btn_head, sizeof(btn_head)) == 0 && + p[sizeof(btn_head)] < param_num) { + v = param_list[p[sizeof(btn_head)]]; + put_unaligned((__u8)0x2A, p); /* Usage Maximum */ + put_unaligned_le16((__force u16)cpu_to_le16(v), p + 1); + p += sizeof(btn_head) + 1; } else { p++; } diff --git a/drivers/hid/hid-uclogic-rdesc.h b/drivers/hid/hid-uclogic-rdesc.h index 9d37090c39d1..3d78299f082d 100644 --- a/drivers/hid/hid-uclogic-rdesc.h +++ b/drivers/hid/hid-uclogic-rdesc.h @@ -82,6 +82,7 @@ extern const size_t uclogic_rdesc_twha60_fixed1_size; /* Report descriptor template placeholder head */ #define UCLOGIC_RDESC_PEN_PH_HEAD 0xFE, 0xED, 0x1D +#define UCLOGIC_RDESC_FRAME_PH_BTN_HEAD 0xFE, 0xED /* Apply report descriptor parameters to a report descriptor template */ extern __u8 *uclogic_rdesc_template_apply(const __u8 *template_ptr, @@ -96,6 +97,7 @@ enum uclogic_rdesc_ph_id { UCLOGIC_RDESC_PEN_PH_ID_Y_LM, UCLOGIC_RDESC_PEN_PH_ID_Y_PM, UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM, + UCLOGIC_RDESC_FRAME_PH_ID_UM, UCLOGIC_RDESC_PH_ID_NUM }; @@ -103,6 +105,10 @@ enum uclogic_rdesc_ph_id { #define UCLOGIC_RDESC_PEN_PH(_ID) \ UCLOGIC_RDESC_PEN_PH_HEAD, UCLOGIC_RDESC_PEN_PH_ID_##_ID +/* Report descriptor frame buttons template placeholder */ +#define UCLOGIC_RDESC_FRAME_PH_BTN \ + UCLOGIC_RDESC_FRAME_PH_BTN_HEAD, UCLOGIC_RDESC_FRAME_PH_ID_UM + /* Report ID for v1 pen reports */ #define UCLOGIC_RDESC_V1_PEN_ID 0x07