From patchwork Mon Aug 29 13:48:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastien Nocera X-Patchwork-Id: 12957950 X-Patchwork-Delegate: jikos@jikos.cz 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 B6610ECAAD5 for ; Mon, 29 Aug 2022 13:49:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229499AbiH2NtA (ORCPT ); Mon, 29 Aug 2022 09:49:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229558AbiH2Ns7 (ORCPT ); Mon, 29 Aug 2022 09:48:59 -0400 Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5102F956A5; Mon, 29 Aug 2022 06:48:58 -0700 (PDT) Received: (Authenticated sender: hadess@hadess.net) by mail.gandi.net (Postfix) with ESMTPSA id E5605E000E; Mon, 29 Aug 2022 13:48:52 +0000 (UTC) From: Bastien Nocera To: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jiri Kosina , Benjamin Tissoires , "Peter F . Patel-Schneider" , =?utf-8?q?Filipe_La?= =?utf-8?q?=C3=ADns?= , Nestor Lopez Casado Subject: [RFC v1 1/2] HID: logitech-hidpp: Fix "Sw. Id." for HID++ 2.0 commands Date: Mon, 29 Aug 2022 15:48:51 +0200 Message-Id: <20220829134852.312548-1-hadess@hadess.net> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Always set a non-zero "Sw. Id." in the lower nibble of the Function/ASE and Software Identifier byte in HID++ 2.0 commands. As per the "Protocol HID++2.0 essential features" section in https://lekensteyn.nl/files/logitech/logitech_hidpp_2.0_specification_draft_2012-06-04.pdf " Software identifier (4 bits, unsigned) A number uniquely defining the software that sends a request. The firmware must copy the software identifier in the response but does not use it in any other ways. 0 Do not use (allows to distinguish a notification from a response). " Link: https://bugzilla.kernel.org/show_bug.cgi?id=215699 Signed-off-by: Bastien Nocera --- drivers/hid/hid-logitech-hidpp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 86e7a38d8a9a..02f8c99672c7 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -41,6 +41,9 @@ module_param(disable_tap_to_click, bool, 0644); MODULE_PARM_DESC(disable_tap_to_click, "Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently)."); +/* Define a non-zero software ID to identify our own requests */ +#define LINUX_KERNEL_SW_ID 0x06 + #define REPORT_ID_HIDPP_SHORT 0x10 #define REPORT_ID_HIDPP_LONG 0x11 #define REPORT_ID_HIDPP_VERY_LONG 0x12 @@ -343,7 +346,7 @@ static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp, else message->report_id = REPORT_ID_HIDPP_LONG; message->fap.feature_index = feat_index; - message->fap.funcindex_clientid = funcindex_clientid; + message->fap.funcindex_clientid = funcindex_clientid | LINUX_KERNEL_SW_ID; memcpy(&message->fap.params, params, param_count); ret = hidpp_send_message_sync(hidpp, message, response); From patchwork Mon Aug 29 13:48:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastien Nocera X-Patchwork-Id: 12957951 X-Patchwork-Delegate: jikos@jikos.cz 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 11A5EECAAD2 for ; Mon, 29 Aug 2022 13:49:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230249AbiH2NtB (ORCPT ); Mon, 29 Aug 2022 09:49:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229759AbiH2Ns7 (ORCPT ); Mon, 29 Aug 2022 09:48:59 -0400 Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E74DA72FD7; Mon, 29 Aug 2022 06:48:57 -0700 (PDT) Received: (Authenticated sender: hadess@hadess.net) by mail.gandi.net (Postfix) with ESMTPSA id 1FCFBE0015; Mon, 29 Aug 2022 13:48:54 +0000 (UTC) From: Bastien Nocera To: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jiri Kosina , Benjamin Tissoires , "Peter F . Patel-Schneider" , =?utf-8?q?Filipe_La?= =?utf-8?q?=C3=ADns?= , Nestor Lopez Casado Subject: [RFC v1 2/2] HID: logitech-hidpp: Remove hard-coded "Sw. Id." for HID++ 2.0 commands Date: Mon, 29 Aug 2022 15:48:52 +0200 Message-Id: <20220829134852.312548-2-hadess@hadess.net> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220829134852.312548-1-hadess@hadess.net> References: <20220829134852.312548-1-hadess@hadess.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Some HID++ 2.0 commands had correctly set a non-zero software identifier directly as part of their function identifiers, but it's more correct to define the function identifier and the software identifier separately before combined them when the command is sent. As this is now done in the previous commit, remove the hard-coded 0x1 software identifiers in the function definitions. Signed-off-by: Bastien Nocera --- drivers/hid/hid-logitech-hidpp.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 02f8c99672c7..46b3e51cb854 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -859,8 +859,8 @@ static int hidpp_unifying_init(struct hidpp_device *hidpp) #define HIDPP_PAGE_ROOT 0x0000 #define HIDPP_PAGE_ROOT_IDX 0x00 -#define CMD_ROOT_GET_FEATURE 0x01 -#define CMD_ROOT_GET_PROTOCOL_VERSION 0x11 +#define CMD_ROOT_GET_FEATURE 0x00 +#define CMD_ROOT_GET_PROTOCOL_VERSION 0x10 static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature, u8 *feature_index, u8 *feature_type) @@ -937,9 +937,9 @@ static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp) #define HIDPP_PAGE_GET_DEVICE_NAME_TYPE 0x0005 -#define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x01 -#define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x11 -#define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x21 +#define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x00 +#define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x10 +#define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x20 static int hidpp_devicenametype_get_count(struct hidpp_device *hidpp, u8 feature_index, u8 *nameLength) @@ -1969,8 +1969,8 @@ static int hidpp_touchpad_fw_items_set(struct hidpp_device *hidpp, #define HIDPP_PAGE_TOUCHPAD_RAW_XY 0x6100 -#define CMD_TOUCHPAD_GET_RAW_INFO 0x01 -#define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x21 +#define CMD_TOUCHPAD_GET_RAW_INFO 0x00 +#define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x20 #define EVENT_TOUCHPAD_RAW_XY 0x00