From patchwork Sun Mar 6 13:25:12 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Nauber X-Patchwork-Id: 613431 X-Patchwork-Delegate: jikos@jikos.cz 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 p26DOXTB003632 for ; Sun, 6 Mar 2011 13:25:19 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752559Ab1CFNZT (ORCPT ); Sun, 6 Mar 2011 08:25:19 -0500 Received: from mail-fx0-f46.google.com ([209.85.161.46]:60661 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752548Ab1CFNZR (ORCPT ); Sun, 6 Mar 2011 08:25:17 -0500 Received: by mail-fx0-f46.google.com with SMTP id 17so3384266fxm.19 for ; Sun, 06 Mar 2011 05:25:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:subject:from:to:cc:content-type:date:message-id :mime-version:x-mailer:content-transfer-encoding; bh=Ua96rlJTTUpD3PX56Ro+ncvUH4QXkMFQcs/1w3fo5EE=; b=xcUenTbLC0cMN24tYfkYIWM28vqz2SCOon0T7zj3E3HXl9wXdvoANfY+LX4l9hgaQe fGa5xFi1Yv/uTToZoncGn/umBQI8we8GNEF+kpdwme2uFnVpjhWjqbsnv8118WsZlyRZ YmCz8T5CyeY42m2kGkua95iAKxhYF5XFbLN+c= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=subject:from:to:cc:content-type:date:message-id:mime-version :x-mailer:content-transfer-encoding; b=feShdtXQSwDho3NlRNS/ivRayUzDAHd2vudMS4e0rRgwUsZeLW9XbR9arEgTq2MTiR KegRtJZOr3ppzjv7OcUZQJ07hyvgvMpEdlaPEJu1jAE4ODozKVJdPrWFIuBUczLwJCEi qpnwRZdu/yJBc5PHoxjW8bA62aABCAl25R5Lw= Received: by 10.223.6.11 with SMTP id 11mr3398136fax.92.1299417916662; Sun, 06 Mar 2011 05:25:16 -0800 (PST) Received: from [192.168.0.51] (p54B63B17.dip.t-dialin.net [84.182.59.23]) by mx.google.com with ESMTPS id n1sm508129fam.16.2011.03.06.05.25.14 (version=SSLv3 cipher=OTHER); Sun, 06 Mar 2011 05:25:15 -0800 (PST) Subject: [PATCH] [input-hid] Add hid-egalax driver to the unified hid-multitouch framework. From: Richard Nauber To: linux-input Cc: Jiri Kosina , Henrik Rydberg Date: Sun, 06 Mar 2011 14:25:12 +0100 Message-ID: <1299417912.9645.495.camel@itzy> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 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-4.2.6 (demeter1.kernel.org [140.211.167.41]); Sun, 06 Mar 2011 13:25:19 +0000 (UTC) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 2560f01..34959a2 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -160,13 +160,6 @@ config HID_EMS_FF 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 - ---help--- - Support for the eGalax dual-touch panels, including the - Joojoo and Wetab tablets. - config HID_ELECOM tristate "ELECOM BM084 bluetooth mouse" depends on BT_HIDP @@ -306,6 +299,8 @@ config HID_MULTITOUCH - Hanvon dual touch panels - Pixcir dual touch panels - 'Sensing Win7-TwoFinger' panel by GeneralTouch + - eGalax dual-touch panels, including the + Joojoo and Wetab tablets If unsure, say N. diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 6efc2a0..29e9898 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -36,7 +36,6 @@ 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-$(CONFIG_HID_EZKEY) += hid-ezkey.o obj-$(CONFIG_HID_GYRATION) += hid-gyration.o diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c deleted file mode 100644 index 03bee19..0000000 --- a/drivers/hid/hid-egalax.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - * HID driver for eGalax dual-touch panels - * - * Copyright (c) 2010 Stephane Chatty - * Copyright (c) 2010 Henrik Rydberg - * Copyright (c) 2010 Canonical, Ltd. - * - */ - -/* - * 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 -#include -#include -#include "usbhid/usbhid.h" - -MODULE_AUTHOR("Stephane Chatty "); -MODULE_DESCRIPTION("eGalax dual-touch panel"); -MODULE_LICENSE("GPL"); - -#include "hid-ids.h" - -#define MAX_SLOTS 2 - -/* estimated signal-to-noise ratios */ -#define SN_MOVE 4096 -#define SN_PRESSURE 32 - -struct egalax_data { - int valid; - int slot; - int touch; - int x, y, z; -}; - -static void set_abs(struct input_dev *input, unsigned int code, - struct hid_field *field, int snratio) -{ - int fmin = field->logical_minimum; - int fmax = field->logical_maximum; - int fuzz = snratio ? (fmax - fmin) / snratio : 0; - input_set_abs_params(input, code, fmin, fmax, fuzz, 0); -} - -static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi, - struct hid_field *field, struct hid_usage *usage, - unsigned long **bit, int *max) -{ - struct input_dev *input = hi->input; - - switch (usage->hid & HID_USAGE_PAGE) { - - case HID_UP_GENDESK: - switch (usage->hid) { - case HID_GD_X: - field->logical_maximum = 32760; - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_POSITION_X); - set_abs(input, ABS_MT_POSITION_X, field, SN_MOVE); - /* touchscreen emulation */ - set_abs(input, ABS_X, field, SN_MOVE); - return 1; - case HID_GD_Y: - field->logical_maximum = 32760; - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_POSITION_Y); - set_abs(input, ABS_MT_POSITION_Y, field, SN_MOVE); - /* touchscreen emulation */ - set_abs(input, ABS_Y, field, SN_MOVE); - return 1; - } - return 0; - - case HID_UP_DIGITIZER: - switch (usage->hid) { - case HID_DG_TIPSWITCH: - /* touchscreen emulation */ - hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); - input_set_capability(input, EV_KEY, BTN_TOUCH); - return 1; - case HID_DG_INRANGE: - case HID_DG_CONFIDENCE: - case HID_DG_CONTACTCOUNT: - case HID_DG_CONTACTMAX: - return -1; - case HID_DG_CONTACTID: - input_mt_init_slots(input, MAX_SLOTS); - return 1; - case HID_DG_TIPPRESSURE: - field->logical_minimum = 0; - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_PRESSURE); - set_abs(input, ABS_MT_PRESSURE, field, SN_PRESSURE); - /* touchscreen emulation */ - set_abs(input, ABS_PRESSURE, field, SN_PRESSURE); - return 1; - } - return 0; - } - - /* ignore others (from other reports we won't get anyway) */ - return -1; -} - -static int egalax_input_mapped(struct hid_device *hdev, struct hid_input *hi, - struct hid_field *field, struct hid_usage *usage, - unsigned long **bit, int *max) -{ - /* tell hid-input to skip setup of these event types */ - if (usage->type == EV_KEY || usage->type == EV_ABS) - set_bit(usage->type, hi->input->evbit); - return -1; -} - -/* - * this function is called when a whole finger has been parsed, - * so that it can decide what to send to the input layer. - */ -static void egalax_filter_event(struct egalax_data *td, struct input_dev *input) -{ - input_mt_slot(input, td->slot); - input_mt_report_slot_state(input, MT_TOOL_FINGER, td->touch); - if (td->touch) { - input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x); - input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y); - input_event(input, EV_ABS, ABS_MT_PRESSURE, td->z); - } - input_mt_report_pointer_emulation(input, true); -} - -static int egalax_event(struct hid_device *hid, struct hid_field *field, - struct hid_usage *usage, __s32 value) -{ - struct egalax_data *td = hid_get_drvdata(hid); - - /* Note, eGalax has two product lines: the first is resistive and - * uses a standard parallel multitouch protocol (product ID == - * 48xx). The second is capacitive and uses an unusual "serial" - * protocol with a different message for each multitouch finger - * (product ID == 72xx). - */ - if (hid->claimed & HID_CLAIMED_INPUT) { - struct input_dev *input = field->hidinput->input; - - switch (usage->hid) { - case HID_DG_INRANGE: - td->valid = value; - break; - case HID_DG_CONFIDENCE: - /* avoid interference from generic hidinput handling */ - break; - case HID_DG_TIPSWITCH: - td->touch = value; - break; - case HID_DG_TIPPRESSURE: - td->z = value; - break; - case HID_DG_CONTACTID: - td->slot = clamp_val(value, 0, MAX_SLOTS - 1); - break; - case HID_GD_X: - td->x = value; - break; - case HID_GD_Y: - td->y = value; - /* this is the last field in a finger */ - if (td->valid) - egalax_filter_event(td, input); - break; - case HID_DG_CONTACTCOUNT: - /* touch emulation: this is the last field in a frame */ - break; - - default: - /* fallback to the generic hidinput handling */ - return 0; - } - } - - /* we have handled the hidinput part, now remains hiddev */ - if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) - hid->hiddev_hid_event(hid, field, usage, value); - - return 1; -} - -static int egalax_probe(struct hid_device *hdev, const struct hid_device_id *id) -{ - int ret; - struct egalax_data *td; - struct hid_report *report; - - td = kzalloc(sizeof(struct egalax_data), GFP_KERNEL); - if (!td) { - hid_err(hdev, "cannot allocate eGalax data\n"); - return -ENOMEM; - } - hid_set_drvdata(hdev, td); - - ret = hid_parse(hdev); - if (ret) - goto end; - - ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); - if (ret) - goto end; - - report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[5]; - if (report) { - report->field[0]->value[0] = 2; - usbhid_submit_report(hdev, report, USB_DIR_OUT); - } - -end: - if (ret) - kfree(td); - - return ret; -} - -static void egalax_remove(struct hid_device *hdev) -{ - hid_hw_stop(hdev); - kfree(hid_get_drvdata(hdev)); - hid_set_drvdata(hdev, NULL); -} - -static const struct hid_device_id egalax_devices[] = { - { 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_USB_DEVICE(USB_VENDOR_ID_DWAV, - USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) }, - { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, - USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) }, - { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, - USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) }, - { } -}; -MODULE_DEVICE_TABLE(hid, egalax_devices); - -static const struct hid_usage_id egalax_grabbed_usages[] = { - { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, - { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} -}; - -static struct hid_driver egalax_driver = { - .name = "egalax-touch", - .id_table = egalax_devices, - .probe = egalax_probe, - .remove = egalax_remove, - .input_mapping = egalax_input_mapping, - .input_mapped = egalax_input_mapped, - .usage_table = egalax_grabbed_usages, - .event = egalax_event, -}; - -static int __init egalax_init(void) -{ - return hid_register_driver(&egalax_driver); -} - -static void __exit egalax_exit(void) -{ - hid_unregister_driver(&egalax_driver); -} - -module_init(egalax_init); -module_exit(egalax_exit); - diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 07d3183..58df924 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -36,6 +36,8 @@ MODULE_LICENSE("GPL"); #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) #define MT_QUIRK_VALID_IS_INRANGE (1 << 4) #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 5) +#define MT_QUIRK_EGALAX (1 << 6) + struct mt_slot { __s32 x, y, p, w, h; @@ -69,6 +71,7 @@ struct mt_class { #define MT_CLS_DUAL1 2 #define MT_CLS_DUAL2 3 #define MT_CLS_CYPRESS 4 +#define MT_CLS_EGALAX 5 /* * these device-dependent functions determine what slot corresponds @@ -118,7 +121,13 @@ struct mt_class mt_classes[] = { .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | MT_QUIRK_CYPRESS, .maxcontacts = 10 }, - + { .name = MT_CLS_EGALAX, + .quirks = MT_QUIRK_SLOT_IS_CONTACTID | + MT_QUIRK_VALID_IS_INRANGE | + MT_QUIRK_EGALAX, + .maxcontacts = 2 , + .sn_move = 4096, + .sn_pressure = 32}, { } }; @@ -146,9 +155,16 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, { struct mt_device *td = hid_get_drvdata(hdev); struct mt_class *cls = td->mtclass; + switch (usage->hid & HID_USAGE_PAGE) { case HID_UP_GENDESK: + + /* fix up the X/Y limits for egalax devices*/ + if ((cls->quirks & MT_QUIRK_EGALAX) + && ((usage->hid == HID_GD_X) || (usage->hid == HID_GD_Y))) + field->logical_maximum = 32760; + switch (usage->hid) { case HID_GD_X: hid_map_usage(hi, usage, bit, max, @@ -203,6 +219,10 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, td->last_slot_field = usage->hid; return 1; case HID_DG_TIPPRESSURE: + /* fix up the pressure range for egalax devices*/ + if (cls->quirks & MT_QUIRK_EGALAX) + field->logical_minimum = 0; + hid_map_usage(hi, usage, bit, max, EV_ABS, ABS_MT_PRESSURE); set_abs(hi->input, ABS_MT_PRESSURE, field, @@ -269,8 +289,10 @@ static void mt_complete_slot(struct mt_device *td) if (slotnum >= 0 && slotnum < td->mtclass->maxcontacts) td->slots[slotnum] = td->curdata; + } td->num_received++; + } @@ -366,12 +388,15 @@ static int mt_event(struct hid_device *hid, struct hid_field *field, if (usage->hid == td->last_slot_field) mt_complete_slot(td); - if (field->index == td->last_field_index + if ((field->index == td->last_field_index && td->num_received >= td->num_expected) + || ((quirks & MT_QUIRK_EGALAX) + && (usage->hid == td->last_slot_field))) + /* for egalax devices: emit an event for every finger + to work around the wrong last_field_index in the report*/ mt_emit_event(td, field->hidinput->input); } - /* we have handled the hidinput part, now remains hiddev */ if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) hid->hiddev_hid_event(hid, field, usage, value); @@ -478,6 +503,23 @@ static const struct hid_device_id mt_devices[] = { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, + /* eGalax devices */ + { .driver_data = MT_CLS_EGALAX, + HID_USB_DEVICE(USB_VENDOR_ID_DWAV, + USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, + { .driver_data = MT_CLS_EGALAX, + HID_USB_DEVICE(USB_VENDOR_ID_DWAV, + USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, + { .driver_data = MT_CLS_EGALAX, + HID_USB_DEVICE(USB_VENDOR_ID_DWAV, + USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) }, + { .driver_data = MT_CLS_EGALAX, + HID_USB_DEVICE(USB_VENDOR_ID_DWAV, + USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) }, + { .driver_data = MT_CLS_EGALAX, + HID_USB_DEVICE(USB_VENDOR_ID_DWAV, + USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) }, + { } }; MODULE_DEVICE_TABLE(hid, mt_devices);