From patchwork Sat Oct 29 18:48:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roderick Colenbrander X-Patchwork-Id: 620136 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 411DBFA3743 for ; Sat, 29 Oct 2022 18:49:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229629AbiJ2StW (ORCPT ); Sat, 29 Oct 2022 14:49:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229647AbiJ2StV (ORCPT ); Sat, 29 Oct 2022 14:49:21 -0400 Received: from mail-pf1-x435.google.com (mail-pf1-x435.google.com [IPv6:2607:f8b0:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B6AA459B1 for ; Sat, 29 Oct 2022 11:49:20 -0700 (PDT) Received: by mail-pf1-x435.google.com with SMTP id e4so7440943pfl.2 for ; Sat, 29 Oct 2022 11:49:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gaikai-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=nAzAvEF71AWk5L+NHqXWv/Wjc0YxY9nJi4/qO8eWe4k=; b=JX+6muPZCY1e8z+Lt1CgekPFYdmFsogUCls+uggySwDSTcdFmRsSWaCUqt0Jo5PYGO umNdWjvgRo42r/ZrZ1eCQQc+W1y/hgxZEj+2cYR9XRHPFhrWipSrnQRfoT2GmrMZr/re VLeGukyYO5m2pBLM8fshMedR5BG96E19cPMByHsY2UJ3Ctgt/bnK5amRDYpLeSnXWmId 1xvmi2y/NlPItXyTsPOVNLYkSSJzvciboyyR6CIcEnLeCQdl//aqsD29Jb8GpScMhj6Q 4dI+vnGk7Kz/BuV5xjtPMdhGF2R5t772WswBCLWYeail6ixu5E8iQyhnP46cO6oxLS69 3Hxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=nAzAvEF71AWk5L+NHqXWv/Wjc0YxY9nJi4/qO8eWe4k=; b=LYLUshWBzWCkscTxG4XIdxasYgjic5qDH5V5EBDNUB8XPxWXChZW3UgKDhOyyXSIvl qVPSFVf3IcXbwl18SSt5TJsvjwhY38yBPgSX+onEaCbn1JPteLXw7Iz+uhcDmu2N+Gt9 dVA6Rf7NRf3Q/iUs7PAvXcwd7Hnmr++gBNdYHusUXUzvBGkUnF4MUUXfc+cKaXYfamoz IcR88+aXpu7CkZL0HUPjz43RDRdiZLGFObErr4iwajyP0BBVbxF7BeB8i24+Wb03rAnM zpOJjcWBb735GRyQLohdHxGX7S3Cfm36rxR+SBGVtGJ486RQvKa4bt6/XbrixxV4Y3DY YyUQ== X-Gm-Message-State: ACrzQf0ISEUbtUFWlAFI5zdOT6Ow8TtFJKNMZbRb2sVwBNg3aABUVTKN fgka6SVE44Blfu6I0eA2K8SGEuBDn8FZrulk X-Google-Smtp-Source: AMsMyM5HoyX6SdHCoOHu/nobAtnPRTmABnvnJLGBK5aSXvhVzvJBNVhqc4LcG1BoqlbIUnpkts4j0w== X-Received: by 2002:a05:6a00:1ac9:b0:56c:e35b:3ce with SMTP id f9-20020a056a001ac900b0056ce35b03cemr5634267pfv.76.1667069360099; Sat, 29 Oct 2022 11:49:20 -0700 (PDT) Received: from localhost.localdomain ([76.242.116.65]) by smtp.gmail.com with ESMTPSA id gb7-20020a17090b060700b0020d9306e735sm1377566pjb.20.2022.10.29.11.49.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 29 Oct 2022 11:49:19 -0700 (PDT) From: Roderick Colenbrander X-Google-Original-From: Roderick Colenbrander To: Jiri Kosina , Benjamin Tissoires Cc: linux-input@vger.kernel.org, Roderick Colenbrander Subject: [PATCH 04/13] HID: playstation: add DualShock4 touchpad support. Date: Sat, 29 Oct 2022 11:48:42 -0700 Message-Id: <20221029184851.282366-5-roderick.colenbrander@sony.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221029184851.282366-1-roderick.colenbrander@sony.com> References: <20221029184851.282366-1-roderick.colenbrander@sony.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Support the DualShock4 touchpad as a separate input device. The code describes the touchpad input reports through structures similar a bit to the DualSense code. Signed-off-by: Roderick Colenbrander --- drivers/hid/hid-playstation.c | 66 +++++++++++++++++++++++++++++++++-- 1 file changed, 63 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index 20111aa20e86..63fc3a67ea74 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -291,17 +291,43 @@ struct dualsense_output_report { #define DS4_FEATURE_REPORT_PAIRING_INFO 0x12 #define DS4_FEATURE_REPORT_PAIRING_INFO_SIZE 16 +/* + * Status of a DualShock4 touch point contact. + * Contact IDs, with highest bit set are 'inactive' + * and any associated data is then invalid. + */ +#define DS4_TOUCH_POINT_INACTIVE BIT(7) + /* Status field of DualShock4 input report. */ #define DS4_STATUS0_BATTERY_CAPACITY GENMASK(3, 0) #define DS4_STATUS0_CABLE_STATE BIT(4) /* Battery status within batery_status field. */ #define DS4_BATTERY_STATUS_FULL 11 +/* DualShock4 hardware limits */ +#define DS4_TOUCHPAD_WIDTH 1920 +#define DS4_TOUCHPAD_HEIGHT 942 + struct dualshock4 { struct ps_device base; struct input_dev *gamepad; + struct input_dev *touchpad; }; +struct dualshock4_touch_point { + uint8_t contact; + uint8_t x_lo; + uint8_t x_hi:4, y_lo:4; + uint8_t y_hi; +} __packed; +static_assert(sizeof(struct dualshock4_touch_point) == 4); + +struct dualshock4_touch_report { + uint8_t timestamp; + struct dualshock4_touch_point points[2]; +} __packed; +static_assert(sizeof(struct dualshock4_touch_report) == 9); + /* Main DualShock4 input report excluding any BT/USB specific headers. */ struct dualshock4_input_report_common { uint8_t x, y; @@ -317,7 +343,9 @@ static_assert(sizeof(struct dualshock4_input_report_common) == 32); struct dualshock4_input_report_usb { uint8_t report_id; /* 0x01 */ struct dualshock4_input_report_common common; - uint8_t reserved[31]; + uint8_t num_touch_reports; + struct dualshock4_touch_report touch_reports[3]; + uint8_t reserved[3]; } __packed; static_assert(sizeof(struct dualshock4_input_report_usb) == DS4_INPUT_REPORT_USB_SIZE); @@ -1556,8 +1584,9 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * struct hid_device *hdev = ps_dev->hdev; struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base); struct dualshock4_input_report_common *ds4_report; - uint8_t battery_capacity, value; - int battery_status; + struct dualshock4_touch_report *touch_reports; + uint8_t battery_capacity, num_touch_reports, value; + int battery_status, i, j; unsigned long flags; /* @@ -1570,6 +1599,8 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * struct dualshock4_input_report_usb *usb = (struct dualshock4_input_report_usb *)data; ds4_report = &usb->common; + num_touch_reports = usb->num_touch_reports; + touch_reports = usb->touch_reports; } else { hid_err(hdev, "Unhandled reportID=%d\n", report->id); return -1; @@ -1603,6 +1634,29 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * input_report_key(ds4->gamepad, BTN_MODE, ds4_report->buttons[2] & DS_BUTTONS2_PS_HOME); input_sync(ds4->gamepad); + for (i = 0; i < num_touch_reports; i++) { + struct dualshock4_touch_report *touch_report = &touch_reports[i]; + + for (j = 0; j < ARRAY_SIZE(touch_report->points); j++) { + struct dualshock4_touch_point *point = &touch_report->points[j]; + bool active = (point->contact & DS4_TOUCH_POINT_INACTIVE) ? false : true; + + input_mt_slot(ds4->touchpad, j); + input_mt_report_slot_state(ds4->touchpad, MT_TOOL_FINGER, active); + + if (active) { + int x = (point->x_hi << 8) | point->x_lo; + int y = (point->y_hi << 4) | point->y_lo; + + input_report_abs(ds4->touchpad, ABS_MT_POSITION_X, x); + input_report_abs(ds4->touchpad, ABS_MT_POSITION_Y, y); + } + } + input_mt_sync_frame(ds4->touchpad); + input_sync(ds4->touchpad); + } + input_report_key(ds4->touchpad, BTN_LEFT, ds4_report->buttons[2] & DS_BUTTONS2_TOUCHPAD); + /* * Interpretation of the battery_capacity data depends on the cable state. * When no cable is connected (bit4 is 0): @@ -1700,6 +1754,12 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev) goto err; } + ds4->touchpad = ps_touchpad_create(hdev, DS4_TOUCHPAD_WIDTH, DS4_TOUCHPAD_HEIGHT, 2); + if (IS_ERR(ds4->touchpad)) { + ret = PTR_ERR(ds4->touchpad); + goto err; + } + ret = ps_device_register_battery(ps_dev); if (ret) goto err;