From patchwork Sat Oct 30 09:30:16 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ignaz Forster X-Patchwork-Id: 291712 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o9U9UU0q004603 for ; Sat, 30 Oct 2010 09:30:31 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752685Ab0J3JaY (ORCPT ); Sat, 30 Oct 2010 05:30:24 -0400 Received: from mailout-de.gmx.net ([213.165.64.22]:50714 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with SMTP id S1752517Ab0J3JaX (ORCPT ); Sat, 30 Oct 2010 05:30:23 -0400 Received: (qmail invoked by alias); 30 Oct 2010 09:30:20 -0000 Received: from ppp-93-104-53-202.dynamic.mnet-online.de (EHLO [192.168.1.50]) [93.104.53.202] by mail.gmx.net (mp018) with SMTP; 30 Oct 2010 11:30:20 +0200 X-Authenticated: #989139 X-Provags-ID: V01U2FsdGVkX1/T+Dkde9rT1DPgaEWynpWCfk0TKZtK1HA4ZFmIZW odA2gFWK2S4Ksg Message-ID: <4CCBE5A8.2090907@gmx.de> Date: Sat, 30 Oct 2010 11:30:16 +0200 From: Ignaz Forster User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.1.14) Gecko/20101025 SeaMonkey/2.0.9 MIME-Version: 1.0 To: Jiri Kosina CC: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: Re: [PATCH] Add Force Feedback support for EMS Trio Linker Plus II References: <4CC751B1.2010304@gmx.de> In-Reply-To: X-Y-GMX-Trusted: 0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Sat, 30 Oct 2010 09:30:31 +0000 (UTC) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 3052e29..3d9a95f 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -150,6 +150,16 @@ config DRAGONRISE_FF Say Y here if you want to enable force feedback support for DragonRise Inc. game controllers. +config HID_EMS_FF + tristate "EMS Production Inc. force feedback support" + depends on USB_HID + select INPUT_FF_MEMLESS + ---help--- + Say Y here if you want to enable force feedback support for devices by + EMS Production Ltd. + Currently the following devices are known to be supported: + - Trio Linker Plus II + config HID_EGALAX tristate "eGalax multi-touch panel" depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index c335605..86192f6 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -35,6 +35,7 @@ obj-$(CONFIG_HID_CHERRY) += hid-cherry.o obj-$(CONFIG_HID_CHICONY) += hid-chicony.o obj-$(CONFIG_HID_CYPRESS) += hid-cypress.o obj-$(CONFIG_HID_DRAGONRISE) += hid-drff.o +obj-$(CONFIG_HID_EMS_FF) += hid-emsff.o obj-$(CONFIG_HID_EGALAX) += hid-egalax.o obj-$(CONFIG_HID_ELECOM) += hid-elecom.o obj-$(CONFIG_HID_EZKEY) += hid-ezkey.o diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 515345b..efffb78 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1301,6 +1301,7 @@ static const struct hid_device_id hid_blacklist[] = { { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, + { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) }, { 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) }, diff --git a/drivers/hid/hid-emsff.c b/drivers/hid/hid-emsff.c new file mode 100644 index 0000000..c61b192 --- /dev/null +++ b/drivers/hid/hid-emsff.c @@ -0,0 +1,162 @@ +/* + * Force feedback support for EMS Trio Linker Plus II + * + * Copyright (c) 2010 Ignaz Forster + */ + +/* + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#include +#include +#include + +#include "hid-ids.h" +#include "usbhid/usbhid.h" + +struct emsff_device { + struct hid_report *report; +}; + +static int emsff_play(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct hid_device *hid = input_get_drvdata(dev); + struct emsff_device *emsff = data; + int weak, strong; + + weak = effect->u.rumble.weak_magnitude; + strong = effect->u.rumble.strong_magnitude; + + dbg_hid("called with 0x%04x 0x%04x\n", strong, weak); + + weak = weak * 0xff / 0xffff; + strong = strong * 0xff / 0xffff; + + emsff->report->field[0]->value[1] = weak; + emsff->report->field[0]->value[2] = strong; + + dbg_hid("running with 0x%02x 0x%02x\n", strong, weak); + usbhid_submit_report(hid, emsff->report, USB_DIR_OUT); + + return 0; +} + +static int emsff_init(struct hid_device *hid) +{ + struct emsff_device *emsff; + struct hid_report *report; + struct hid_input *hidinput = list_first_entry(&hid->inputs, + struct hid_input, list); + struct list_head *report_list = + &hid->report_enum[HID_OUTPUT_REPORT].report_list; + struct input_dev *dev = hidinput->input; + int error; + + if (list_empty(report_list)) { + dev_err(&hid->dev, "no output reports found\n"); + return -ENODEV; + } + + report = list_first_entry(report_list, struct hid_report, list); + if (report->maxfield < 1) { + dev_err(&hid->dev, "no fields in the report\n"); + return -ENODEV; + } + + if (report->field[0]->report_count < 7) { + dev_err(&hid->dev, "not enough values in the field\n"); + return -ENODEV; + } + + emsff = kzalloc(sizeof(struct emsff_device), GFP_KERNEL); + if (!emsff) + return -ENOMEM; + + set_bit(FF_RUMBLE, dev->ffbit); + + error = input_ff_create_memless(dev, emsff, emsff_play); + if (error) { + kfree(emsff); + return error; + } + + emsff->report = report; + emsff->report->field[0]->value[0] = 0x01; + emsff->report->field[0]->value[1] = 0x00; + emsff->report->field[0]->value[2] = 0x00; + emsff->report->field[0]->value[3] = 0x00; + emsff->report->field[0]->value[4] = 0x00; + emsff->report->field[0]->value[5] = 0x00; + emsff->report->field[0]->value[6] = 0x00; + usbhid_submit_report(hid, emsff->report, USB_DIR_OUT); + + dev_info(&hid->dev, "force feedback for EMS based devices by " + "Ignaz Forster \n"); + + return 0; +} + +static int ems_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret; + + ret = hid_parse(hdev); + if (ret) { + dev_err(&hdev->dev, "parse failed\n"); + goto err; + } + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); + if (ret) { + dev_err(&hdev->dev, "hw start failed\n"); + goto err; + } + + emsff_init(hdev); + + return 0; +err: + return ret; +} + +static const struct hid_device_id ems_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_EMS, 0x118) }, + { } +}; +MODULE_DEVICE_TABLE(hid, ems_devices); + +static struct hid_driver ems_driver = { + .name = "hkems", + .id_table = ems_devices, + .probe = ems_probe, +}; + +static int ems_init(void) +{ + return hid_register_driver(&ems_driver); +} + +static void ems_exit(void) +{ + hid_unregister_driver(&ems_driver); +} + +module_init(ems_init); +module_exit(ems_exit); +MODULE_LICENSE("GPL"); + diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 3341baa..5175001 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -203,6 +203,9 @@ #define USB_VENDOR_ID_ELO 0x04E7 #define USB_DEVICE_ID_ELO_TS2700 0x0020 +#define USB_VENDOR_ID_EMS 0x2006 +#define USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II 0x0118 + #define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100