From patchwork Thu Aug 13 15:11:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Tissoires X-Patchwork-Id: 7009051 X-Patchwork-Delegate: jikos@jikos.cz Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id EC6DCC05AD for ; Thu, 13 Aug 2015 15:11:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C53AD2076C for ; Thu, 13 Aug 2015 15:11:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 988F62058E for ; Thu, 13 Aug 2015 15:11:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753289AbbHMPLc (ORCPT ); Thu, 13 Aug 2015 11:11:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57105 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753388AbbHMPLa (ORCPT ); Thu, 13 Aug 2015 11:11:30 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 659A636B368; Thu, 13 Aug 2015 15:11:30 +0000 (UTC) Received: from t540p.bos.redhat.com (dhcp-25-158.bos.redhat.com [10.18.25.158]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t7DFBTfb026848; Thu, 13 Aug 2015 11:11:29 -0400 From: Benjamin Tissoires To: Jiri Kosina , Orivej Desh Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, Benjamin Tissoires Subject: [PATCH v2] HID: gembird: add new driver to fix Gembird JPD-DualForce 2 Date: Thu, 13 Aug 2015 11:11:27 -0400 Message-Id: <1439478687-15990-1-git-send-email-benjamin.tissoires@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This gamepad advertise 5 absolute axis while 4 are actually used. The second Z axis shows some garbage, so it has to be ignored by HID. The first Z axis and the Rz one are actually Rx and Ry. Remap them. We could also just remap and ignore the axis in .input_mapping(). I went ahead with .report_fixup() first, so here it is. Reported-by: Orivej Desh Tested-by: Orivej Desh Signed-off-by: Benjamin Tissoires --- drivers/hid/Kconfig | 6 +++ drivers/hid/Makefile | 1 + drivers/hid/hid-core.c | 1 + drivers/hid/hid-gembird.c | 116 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/hid/hid-ids.h | 3 ++ 5 files changed, 127 insertions(+) create mode 100644 drivers/hid/hid-gembird.c diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 57c94d7..6ab51ae 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -251,6 +251,12 @@ config HID_EZKEY ---help--- Support for Ezkey BTC 8193 keyboard. +config HID_GEMBIRD + tristate "Gembird Joypad" + depends on HID + ---help--- + Support for Gembird JPD-DualForce 2. + config HID_HOLTEK tristate "Holtek HID devices" depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 2f8a41d..e6441bc 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_HID_EMS_FF) += hid-emsff.o obj-$(CONFIG_HID_ELECOM) += hid-elecom.o obj-$(CONFIG_HID_ELO) += hid-elo.o obj-$(CONFIG_HID_EZKEY) += hid-ezkey.o +obj-$(CONFIG_HID_GEMBIRD) += hid-gembird.o obj-$(CONFIG_HID_GT683R) += hid-gt683r.o obj-$(CONFIG_HID_GYRATION) += hid-gyration.o obj-$(CONFIG_HID_HOLTEK) += hid-holtek-kbd.o diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index e982e70..22afab9 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1844,6 +1844,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, + { HID_USB_DEVICE(USB_VENDOR_ID_GEMBIRD, USB_DEVICE_ID_GEMBIRD_JPD_DUALFORCE2) }, { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, diff --git a/drivers/hid/hid-gembird.c b/drivers/hid/hid-gembird.c new file mode 100644 index 0000000..e55e519 --- /dev/null +++ b/drivers/hid/hid-gembird.c @@ -0,0 +1,116 @@ +/* + * HID driver for Gembird Joypad, "PC Game Controller" + * + * Copyright (c) 2015 Red Hat, Inc + * Copyright (c) 2015 Benjamin Tissoires + */ + +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include +#include +#include + +#include "hid-ids.h" + +#define GEMBIRD_START_FAULTY_RDESC 8 + +static const __u8 gembird_jpd_faulty_rdesc[] = { + 0x75, 0x08, /* Report Size (8) */ + 0x95, 0x05, /* Report Count (5) */ + 0x15, 0x00, /* Logical Minimum (0) */ + 0x26, 0xff, 0x00, /* Logical Maximum (255) */ + 0x35, 0x00, /* Physical Minimum (0) */ + 0x46, 0xff, 0x00, /* Physical Maximum (255) */ + 0x09, 0x30, /* Usage (X) */ + 0x09, 0x31, /* Usage (Y) */ + 0x09, 0x32, /* Usage (Z) */ + 0x09, 0x32, /* Usage (Z) */ + 0x09, 0x35, /* Usage (Rz) */ + 0x81, 0x02, /* Input (Data,Var,Abs) */ +}; + +/* + * we fix the report descriptor by: + * - marking the first Z axis as constant (so it is ignored by HID) + * - assign the original second Z to Rx + * - assign the original Rz to Ry + */ +static const __u8 gembird_jpd_fixed_rdesc[] = { + 0x75, 0x08, /* Report Size (8) */ + 0x95, 0x02, /* Report Count (2) */ + 0x15, 0x00, /* Logical Minimum (0) */ + 0x26, 0xff, 0x00, /* Logical Maximum (255) */ + 0x35, 0x00, /* Physical Minimum (0) */ + 0x46, 0xff, 0x00, /* Physical Maximum (255) */ + 0x09, 0x30, /* Usage (X) */ + 0x09, 0x31, /* Usage (Y) */ + 0x81, 0x02, /* Input (Data,Var,Abs) */ + 0x95, 0x01, /* Report Count (1) */ + 0x09, 0x32, /* Usage (Z) */ + 0x81, 0x01, /* Input (Cnst,Arr,Abs) */ + 0x95, 0x02, /* Report Count (2) */ + 0x09, 0x33, /* Usage (Rx) */ + 0x09, 0x34, /* Usage (Ry) */ + 0x81, 0x02, /* Input (Data,Var,Abs) */ +}; + +static __u8 *gembird_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) +{ + __u8 *new_rdesc; + /* delta_size is > 0 */ + size_t delta_size = sizeof(gembird_jpd_fixed_rdesc) - + sizeof(gembird_jpd_faulty_rdesc); + size_t new_size = *rsize + delta_size; + + if (*rsize >= 31 && !memcmp(&rdesc[GEMBIRD_START_FAULTY_RDESC], + gembird_jpd_faulty_rdesc, + sizeof(gembird_jpd_faulty_rdesc))) { + new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL); + if (new_rdesc == NULL) + return rdesc; + + dev_info(&hdev->dev, + "fixing Gembird JPD-DualForce 2 report descriptor.\n"); + + /* start by copying the end of the rdesc */ + memcpy(new_rdesc + delta_size, rdesc, *rsize); + + /* add the correct beginning */ + memcpy(new_rdesc, rdesc, GEMBIRD_START_FAULTY_RDESC); + + /* replace the faulty part with the fixed one */ + memcpy(new_rdesc + GEMBIRD_START_FAULTY_RDESC, + gembird_jpd_fixed_rdesc, + sizeof(gembird_jpd_fixed_rdesc)); + + *rsize = new_size; + rdesc = new_rdesc; + } + + return rdesc; +} + +static const struct hid_device_id gembird_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_GEMBIRD, + USB_DEVICE_ID_GEMBIRD_JPD_DUALFORCE2) }, + { } +}; +MODULE_DEVICE_TABLE(hid, gembird_devices); + +static struct hid_driver gembird_driver = { + .name = "gembird", + .id_table = gembird_devices, + .report_fixup = gembird_report_fixup, +}; +module_hid_driver(gembird_driver); + +MODULE_AUTHOR("Benjamin Tissoires "); +MODULE_DESCRIPTION("HID Gembird joypad driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 602f2b7..720d5e3 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -363,6 +363,9 @@ #define USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR 0x0001 #define USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR 0x0002 +#define USB_VENDOR_ID_GEMBIRD 0x11ff +#define USB_DEVICE_ID_GEMBIRD_JPD_DUALFORCE2 0x3331 + #define USB_VENDOR_ID_GENERAL_TOUCH 0x0dfc #define USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS 0x0003 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS 0x0100