From owner-svn-src-all@FreeBSD.ORG Sun Apr 5 18:53:50 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 3617EA30; Sun, 5 Apr 2015 18:53:50 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 08BF0F13; Sun, 5 Apr 2015 18:53:50 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t35IrnaE095175; Sun, 5 Apr 2015 18:53:49 GMT (envelope-from rakuco@FreeBSD.org) Received: (from rakuco@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t35IrnGd095174; Sun, 5 Apr 2015 18:53:49 GMT (envelope-from rakuco@FreeBSD.org) Message-Id: <201504051853.t35IrnGd095174@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: rakuco set sender to rakuco@FreeBSD.org using -f From: Raphael Kubo da Costa Date: Sun, 5 Apr 2015 18:53:49 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r281116 - head/usr.sbin/bluetooth/bthidd X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 05 Apr 2015 18:53:50 -0000 Author: rakuco (ports committer) Date: Sun Apr 5 18:53:48 2015 New Revision: 281116 URL: https://svnweb.freebsd.org/changeset/base/281116 Log: bthidd: Consider usage ranges when dealing with array inputs. So far, we were always using HID_USAGE() to determine the Usage ID of a certain HID report input item. This does not work as intended if a field is an array and the allowed usages are specified with a usage range, as HID_USAGE() will return 0. We need to use the field value as an index in the usage range list in this case instead. This makes the volume keys in a Microsoft Bluetooth Mobile Keyboard 5000 be properly recognized. The relevant part of the HID report looks like this: 0xA1, 0x01, // Collection (Application) 0x85, 0x07, // Report ID (7) 0x05, 0x0C, // Usage Page (Consumer) 0x19, 0x00, // Usage Minimum (Unassigned) 0x2A, 0xFF, 0x03, // Usage Maximum (0x03FF) 0x95, 0x01, // Report Count (1) 0x75, 0x10, // Report Size (16) 0x15, 0x00, // Logical Minimum (0) 0x27, 0xFF, 0x03, 0x00, 0x00, // Logical Maximum (1023) 0x81, 0x00, // Input (Data,Array,Abs,No Wrap,Linear,Preferred // State,No Null Position) When a key such as "volume down" is pressed, the following data is transferred through Interrupt In: 0x07 0xEA 0x00 Differential Revision: https://reviews.freebsd.org/D2229 Reviewed by: emax Approved by: emax MFC after: 1 week Modified: head/usr.sbin/bluetooth/bthidd/hid.c Modified: head/usr.sbin/bluetooth/bthidd/hid.c ============================================================================== --- head/usr.sbin/bluetooth/bthidd/hid.c Sun Apr 5 18:42:43 2015 (r281115) +++ head/usr.sbin/bluetooth/bthidd/hid.c Sun Apr 5 18:53:48 2015 (r281116) @@ -165,9 +165,21 @@ hid_interrupt(bthid_session_p s, uint8_t continue; page = HID_PAGE(h.usage); - usage = HID_USAGE(h.usage); val = hid_get_data(data, &h); + /* + * When the input field is an array and the usage is specified + * with a range instead of an ID, we have to derive the actual + * usage by using the item value as an index in the usage range + * list. + */ + if ((h.flags & HIO_VARIABLE)) { + usage = HID_USAGE(h.usage); + } else { + const uint32_t usage_offset = val - h.logical_minimum; + usage = HID_USAGE(h.usage_minimum + usage_offset); + } + switch (page) { case HUP_GENERIC_DESKTOP: switch (usage) {