Commit 8b108c60 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (59 commits)
  HID: fix up 'EMBEDDED' mess in Kconfig
  HID: roccat: cleanup preprocessor macros
  HID: roccat: refactor special event handling
  HID: roccat: fix special button support
  HID: roccat: Correctly mark init and exit functions
  HID: hidraw: Use Interrupt Endpoint for OUT Transfers if Available
  HID: hid-samsung: remove redundant key mappings
  HID: add omitted hid-zydacron.c file
  HID: hid-samsung: add support for Creative Desktop Wireless 6000
  HID: picolcd: Eliminate use after free
  HID: Zydacron Remote Control driver
  HID: Use kmemdup
  HID: magicmouse: fix input registration
  HID: make Prodikeys driver standalone config option
  HID: Prodikeys PC-MIDI HID Driver
  HID: hidraw: fix indentation
  HID: ntrig: add filtering module parameters
  HID: ntrig: add sysfs access to filter parameters
  HID: ntrig: add sensitivity and responsiveness support
  HID: add multi-input quirk for eGalax Touchcontroller
  ...
parents 7ce1418f 73d5e8f7
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode
Date: March 2010
Contact: Bruno Prémont <bonbons@linux-vserver.org>
Description: Make it possible to switch the PicoLCD device between LCD
(firmware) and bootloader (flasher) operation modes.
Reading: returns list of available modes, the active mode being
enclosed in brackets ('[' and ']')
Writing: causes operation mode switch. Permitted values are
the non-active mode names listed when read.
Note: when switching mode the current PicoLCD HID device gets
disconnected and reconnects after above delay (see attribute
operation_mode_delay for its value).
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode_delay
Date: April 2010
Contact: Bruno Prémont <bonbons@linux-vserver.org>
Description: Delay PicoLCD waits before restarting in new mode when
operation_mode has changed.
Reading/Writing: It is expressed in ms and permitted range is
0..30000ms.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/fb_update_rate
Date: March 2010
Contact: Bruno Prémont <bonbons@linux-vserver.org>
Description: Make it possible to adjust defio refresh rate.
Reading: returns list of available refresh rates (expressed in Hz),
the active refresh rate being enclosed in brackets ('[' and ']')
Writing: accepts new refresh rate expressed in integer Hz
within permitted rates.
Note: As device can barely do 2 complete refreshes a second
it only makes sense to adjust this value if only one or two
tiles get changed and it's not appropriate to expect the application
to flush it's tiny changes explicitely at higher than default rate.
What: /sys/bus/hid/drivers/prodikeys/.../channel
Date: April 2010
KernelVersion: 2.6.34
Contact: Don Prince <dhprince.devel@yahoo.co.uk>
Description:
Allows control (via software) the midi channel to which
that the pc-midi keyboard will output.midi data.
Range: 0..15
Type: Read/write
What: /sys/bus/hid/drivers/prodikeys/.../sustain
Date: April 2010
KernelVersion: 2.6.34
Contact: Don Prince <dhprince.devel@yahoo.co.uk>
Description:
Allows control (via software) the sustain duration of a
note held by the pc-midi driver.
0 means sustain mode is disabled.
Range: 0..5000 (milliseconds)
Type: Read/write
What: /sys/bus/hid/drivers/prodikeys/.../octave
Date: April 2010
KernelVersion: 2.6.34
Contact: Don Prince <dhprince.devel@yahoo.co.uk>
Description:
Controls the octave shift modifier in the pc-midi driver.
The octave can be shifted via software up/down 2 octaves.
0 means the no ocatve shift.
Range: -2..2 (minus 2 to plus 2)
Type: Read/Write
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/actual_dpi
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: It is possible to switch the dpi setting of the mouse with the
press of a button.
When read, this file returns the raw number of the actual dpi
setting reported by the mouse. This number has to be further
processed to receive the real dpi value.
VALUE DPI
1 800
2 1200
3 1600
4 2000
5 2400
6 3200
This file is readonly.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/actual_profile
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When read, this file returns the number of the actual profile.
This file is readonly.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/firmware_version
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When read, this file returns the raw integer version number of the
firmware reported by the mouse. Using the integer value eases
further usage in other programs. To receive the real version
number the decimal point has to be shifted 2 positions to the
left. E.g. a returned value of 138 means 1.38
This file is readonly.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/kone_driver_version
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When read, this file returns the driver version.
The format of the string is "v<major>.<minor>.<patchlevel>".
This attribute is used by the userland tools to find the sysfs-
paths of installed kone-mice and determine the capabilites of
the driver. Versions of this driver for old kernels replace
usbhid instead of generic-usb. The way to scan for this file
has been chosen to provide a consistent way for all supported
kernel versions.
This file is readonly.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/profile[1-5]
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The mouse can store 5 profiles which can be switched by the
press of a button. A profile holds informations like button
mappings, sensitivity, the colors of the 5 leds and light
effects.
When read, these files return the respective profile. The
returned data is 975 bytes in size.
When written, this file lets one write the respective profile
data back to the mouse. The data has to be 975 bytes long.
The mouse will reject invalid data, whereas the profile number
stored in the profile doesn't need to fit the number of the
store.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/settings
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When read, this file returns the settings stored in the mouse.
The size of the data is 36 bytes and holds information like the
startup_profile, tcu state and calibration_data.
When written, this file lets write settings back to the mouse.
The data has to be 36 bytes long. The mouse will reject invalid
data.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/startup_profile
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The integer value of this attribute ranges from 1 to 5.
When read, this attribute returns the number of the profile
that's active when the mouse is powered on.
When written, this file sets the number of the startup profile
and the mouse activates this profile immediately.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/tcu
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The mouse has a "Tracking Control Unit" which lets the user
calibrate the laser power to fit the mousepad surface.
When read, this file returns the current state of the TCU,
where 0 means off and 1 means on.
Writing 0 in this file will switch the TCU off.
Writing 1 in this file will start the calibration which takes
around 6 seconds to complete and activates the TCU.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/weight
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The mouse can be equipped with one of four supplied weights
ranging from 5 to 20 grams which are recognized by the mouse
and its value can be read out. When read, this file returns the
raw value returned by the mouse which eases further processing
in other software.
The values map to the weights as follows:
VALUE WEIGHT
0 none
1 5g
2 10g
3 15g
4 20g
This file is readonly.
What: /sys/class/hidraw/hidraw*/device/speed
Date: April 2010
Kernel Version: 2.6.35
Contact: linux-bluetooth@vger.kernel.org
Description:
The /sys/class/hidraw/hidraw*/device/speed file controls
reporting speed of wacom bluetooth tablet. Reading from
this file returns 1 if tablet reports in high speed mode
or 0 otherwise. Writing to this file one of these values
switches reporting speed.
......@@ -86,6 +86,12 @@ config HID_BELKIN
---help---
Support for Belkin Flip KVM and Wireless keyboard.
config HID_CANDO
tristate "Cando dual touch panel"
depends on USB_HID
---help---
Support for Cando dual touch panel.
config HID_CHERRY
tristate "Cherry" if EMBEDDED
depends on USB_HID
......@@ -100,6 +106,21 @@ config HID_CHICONY
---help---
Support for Chicony Tactical pad.
config HID_PRODIKEYS
tristate "Prodikeys PC-MIDI Keyboard support"
depends on USB_HID && SND
select SND_RAWMIDI
---help---
Support for Prodikeys PC-MIDI Keyboard device support.
Say Y here to enable support for this device.
- Prodikeys PC-MIDI keyboard.
The Prodikeys PC-MIDI acts as a USB Audio device, with one MIDI
input and one MIDI output. These MIDI jacks appear as
a sound "card" in the ALSA sound system.
Note: if you say N here, this device will still function as a basic
multimedia keyboard, but will lack support for the musical keyboard
and some additional multimedia keys.
config HID_CYPRESS
tristate "Cypress" if EMBEDDED
depends on USB_HID
......@@ -108,9 +129,8 @@ config HID_CYPRESS
Support for cypress mouse and barcode readers.
config HID_DRAGONRISE
tristate "DragonRise Inc. support" if EMBEDDED
tristate "DragonRise Inc. support"
depends on USB_HID
default !EMBEDDED
---help---
Say Y here if you have DragonRise Inc.game controllers.
......@@ -122,6 +142,12 @@ config DRAGONRISE_FF
Say Y here if you want to enable force feedback support for DragonRise Inc.
game controllers.
config HID_EGALAX
tristate "eGalax multi-touch panel"
depends on USB_HID
---help---
Support for the eGalax dual-touch panel.
config HID_EZKEY
tristate "Ezkey" if EMBEDDED
depends on USB_HID
......@@ -137,16 +163,14 @@ config HID_KYE
Support for Kye/Genius Ergo Mouse.
config HID_GYRATION
tristate "Gyration" if EMBEDDED
tristate "Gyration"
depends on USB_HID
default !EMBEDDED
---help---
Support for Gyration remote control.
config HID_TWINHAN
tristate "Twinhan" if EMBEDDED
tristate "Twinhan"
depends on USB_HID
default !EMBEDDED
---help---
Support for Twinhan IR remote control.
......@@ -233,16 +257,14 @@ config HID_NTRIG
Support for N-Trig touch screen.
config HID_ORTEK
tristate "Ortek" if EMBEDDED
tristate "Ortek"
depends on USB_HID
default !EMBEDDED
---help---
Support for Ortek WKB-2000 wireless keyboard + mouse trackpad.
config HID_PANTHERLORD
tristate "Pantherlord support" if EMBEDDED
tristate "Pantherlord support"
depends on USB_HID
default !EMBEDDED
---help---
Say Y here if you have a PantherLord/GreenAsia based game controller
or adapter.
......@@ -256,29 +278,90 @@ config PANTHERLORD_FF
or adapter and want to enable force feedback support for it.
config HID_PETALYNX
tristate "Petalynx" if EMBEDDED
tristate "Petalynx"
depends on USB_HID
default !EMBEDDED
---help---
Support for Petalynx Maxter remote control.
config HID_PICOLCD
tristate "PicoLCD (graphic version)"
depends on USB_HID
---help---
This provides support for Minibox PicoLCD devices, currently
only the graphical ones are supported.
This includes support for the following device features:
- Keypad
- Switching between Firmware and Flash mode
- EEProm / Flash access (via debugfs)
Features selectively enabled:
- Framebuffer for monochrome 256x64 display
- Backlight control
- Contrast control
- General purpose outputs
Features that are not (yet) supported:
- IR
config HID_PICOLCD_FB
bool "Framebuffer support" if EMBEDDED
default !EMBEDDED
depends on HID_PICOLCD
depends on HID_PICOLCD=FB || FB=y
select FB_DEFERRED_IO
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
select FB_SYS_FOPS
---help---
Provide access to PicoLCD's 256x64 monochrome display via a
frambuffer device.
config HID_PICOLCD_BACKLIGHT
bool "Backlight control" if EMBEDDED
default !EMBEDDED
depends on HID_PICOLCD
depends on HID_PICOLCD=BACKLIGHT_CLASS_DEVICE || BACKLIGHT_CLASS_DEVICE=y
---help---
Provide access to PicoLCD's backlight control via backlight
class.
config HID_PICOLCD_LCD
bool "Contrast control" if EMBEDDED
default !EMBEDDED
depends on HID_PICOLCD
depends on HID_PICOLCD=LCD_CLASS_DEVICE || LCD_CLASS_DEVICE=y
---help---
Provide access to PicoLCD's LCD contrast via lcd class.
config HID_PICOLCD_LEDS
bool "GPO via leds class" if EMBEDDED
default !EMBEDDED
depends on HID_PICOLCD
depends on HID_PICOLCD=LEDS_CLASS || LEDS_CLASS=y
---help---
Provide access to PicoLCD's GPO pins via leds class.
config HID_QUANTA
tristate "Quanta Optical Touch"
depends on USB_HID
---help---
Support for Quanta Optical Touch dual-touch panels.
config HID_ROCCAT_KONE
tristate "Roccat Kone Mouse support"
depends on USB_HID
---help---
Support for Roccat Kone mouse.
config HID_SAMSUNG
tristate "Samsung" if EMBEDDED
tristate "Samsung"
depends on USB_HID
default !EMBEDDED
---help---
Support for Samsung InfraRed remote control.
Support for Samsung InfraRed remote control or keyboards.
config HID_SONY
tristate "Sony" if EMBEDDED
tristate "Sony"
depends on USB_HID
default !EMBEDDED
---help---
Support for Sony PS3 controller.
......@@ -289,16 +372,14 @@ config HID_STANTUM
Support for Stantum multitouch panel.
config HID_SUNPLUS
tristate "Sunplus" if EMBEDDED
tristate "Sunplus"
depends on USB_HID
default !EMBEDDED
---help---
Support for Sunplus wireless desktop.
config HID_GREENASIA
tristate "GreenAsia (Product ID 0x12) support" if EMBEDDED
tristate "GreenAsia (Product ID 0x12) support"
depends on USB_HID
default !EMBEDDED
---help---
Say Y here if you have a GreenAsia (Product ID 0x12) based game
controller or adapter.
......@@ -313,9 +394,8 @@ config GREENASIA_FF
and want to enable force feedback support for it.
config HID_SMARTJOYPLUS
tristate "SmartJoy PLUS PS2/USB adapter support" if EMBEDDED
tristate "SmartJoy PLUS PS2/USB adapter support"
depends on USB_HID
default !EMBEDDED
---help---
Support for SmartJoy PLUS PS2/USB adapter.
......@@ -328,16 +408,14 @@ config SMARTJOYPLUS_FF
enable force feedback support for it.
config HID_TOPSEED
tristate "TopSeed Cyberlink remote control support" if EMBEDDED
tristate "TopSeed Cyberlink remote control support"
depends on USB_HID
default !EMBEDDED
---help---
Say Y if you have a TopSeed Cyberlink remote control.
Say Y if you have a TopSeed Cyberlink or BTC Emprex remote control.
config HID_THRUSTMASTER
tristate "ThrustMaster devices support" if EMBEDDED
tristate "ThrustMaster devices support"
depends on USB_HID
default !EMBEDDED
---help---
Say Y here if you have a THRUSTMASTER FireStore Dual Power 2 or
a THRUSTMASTER Ferrari GT Rumble Wheel.
......@@ -357,10 +435,17 @@ config HID_WACOM
---help---
Support for Wacom Graphire Bluetooth tablet.
config HID_WACOM_POWER_SUPPLY
bool "Wacom Bluetooth devices power supply status support"
depends on HID_WACOM
select POWER_SUPPLY
---help---
Say Y here if you want to enable power supply status monitoring for
Wacom Bluetooth devices.
config HID_ZEROPLUS
tristate "Zeroplus based game controller support" if EMBEDDED
tristate "Zeroplus based game controller support"
depends on USB_HID
default !EMBEDDED
---help---
Say Y here if you have a Zeroplus based game controller.
......@@ -372,6 +457,12 @@ config ZEROPLUS_FF
Say Y here if you have a Zeroplus based game controller and want
to have force feedback support for it.
config HID_ZYDACRON
tristate "Zydacron remote control support"
depends on USB_HID
---help---
Support for Zydacron remote control.
endmenu
endif # HID_SUPPORT
......@@ -26,10 +26,12 @@ obj-$(CONFIG_HID_3M_PCT) += hid-3m-pct.o
obj-$(CONFIG_HID_A4TECH) += hid-a4tech.o
obj-$(CONFIG_HID_APPLE) += hid-apple.o
obj-$(CONFIG_HID_BELKIN) += hid-belkin.o
obj-$(CONFIG_HID_CANDO) += hid-cando.o
obj-$(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_EGALAX) += hid-egalax.o
obj-$(CONFIG_HID_EZKEY) += hid-ezkey.o
obj-$(CONFIG_HID_GYRATION) += hid-gyration.o
obj-$(CONFIG_HID_KENSINGTON) += hid-kensington.o
......@@ -41,9 +43,12 @@ obj-$(CONFIG_HID_MONTEREY) += hid-monterey.o
obj-$(CONFIG_HID_MOSART) += hid-mosart.o
obj-$(CONFIG_HID_NTRIG) += hid-ntrig.o
obj-$(CONFIG_HID_ORTEK) += hid-ortek.o
obj-$(CONFIG_HID_PRODIKEYS) += hid-prodikeys.o
obj-$(CONFIG_HID_QUANTA) += hid-quanta.o
obj-$(CONFIG_HID_PANTHERLORD) += hid-pl.o
obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o
obj-$(CONFIG_HID_PICOLCD) += hid-picolcd.o
obj-$(CONFIG_HID_ROCCAT_KONE) += hid-roccat-kone.o
obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o
obj-$(CONFIG_HID_SONY) += hid-sony.o
......@@ -54,6 +59,7 @@ obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o
obj-$(CONFIG_HID_TOPSEED) += hid-topseed.o
obj-$(CONFIG_HID_TWINHAN) += hid-twinhan.o
obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o
obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o
obj-$(CONFIG_HID_WACOM) += hid-wacom.o
obj-$(CONFIG_USB_HID) += usbhid/
......
/*
* HID driver for 3M PCT multitouch panels
*
* Copyright (c) 2009 Stephane Chatty <chatty@enac.fr>
* Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
*
*/
......@@ -25,7 +25,7 @@ MODULE_LICENSE("GPL");
#include "hid-ids.h"
struct mmm_finger {
__s32 x, y;
__s32 x, y, w, h;
__u8 rank;
bool touch, valid;
};
......@@ -82,7 +82,18 @@ static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
/* touchscreen emulation */
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
return 1;
case HID_DG_WIDTH:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MAJOR);
return 1;
case HID_DG_HEIGHT:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MINOR);
input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
1, 1, 0, 0);
return 1;
case HID_DG_CONTACTID:
field->logical_maximum = 59;
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TRACKING_ID);
return 1;
......@@ -128,9 +139,15 @@ static void mmm_filter_event(struct mmm_data *md, struct input_dev *input)
/* this finger is just placeholder data, ignore */
} else if (f->touch) {
/* this finger is on the screen */
int wide = (f->w > f->h);
input_event(input, EV_ABS, ABS_MT_TRACKING_ID, i);
input_event(input, EV_ABS, ABS_MT_POSITION_X, f->x);
input_event(input, EV_ABS, ABS_MT_POSITION_Y, f->y);
input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR,
wide ? f->w : f->h);
input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR,
wide ? f->h : f->w);
input_mt_sync(input);
/*
* touchscreen emulation: maintain the age rank
......@@ -197,6 +214,14 @@ static int mmm_event(struct hid_device *hid, struct hid_field *field,
case HID_DG_CONFIDENCE:
md->valid = value;
break;
case HID_DG_WIDTH:
if (md->valid)
md->f[md->curid].w = value;
break;
case HID_DG_HEIGHT:
if (md->valid)
md->f[md->curid].h = value;
break;
case HID_DG_CONTACTID:
if (md->valid) {
md->curid = value;
......@@ -255,6 +280,7 @@ static void mmm_remove(struct hid_device *hdev)
static const struct hid_device_id mmm_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
{ HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
{ }
};
MODULE_DEVICE_TABLE(hid, mmm_devices);
......@@ -287,5 +313,4 @@ static void __exit mmm_exit(void)
module_init(mmm_init);
module_exit(mmm_exit);
MODULE_LICENSE("GPL");
/*
* HID driver for Cando dual-touch panels
*
* Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
*
*/
/*
* 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 <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
MODULE_DESCRIPTION("Cando dual-touch panel");
MODULE_LICENSE("GPL");
#include "hid-ids.h"
struct cando_data {
__u16 x, y;
__u8 id;
__s8 oldest; /* id of the oldest finger in previous frame */
bool valid; /* valid finger data, or just placeholder? */
bool first; /* is this the first finger in this frame? */
__s8 firstid; /* id of the first finger in the frame */
__u16 firstx, firsty; /* (x, y) of the first finger in the frame */
};
static int cando_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_GENDESK:
switch (usage->hid) {
case HID_GD_X:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_POSITION_X);
/* touchscreen emulation */
input_set_abs_params(hi->input, ABS_X,
field->logical_minimum,
field->logical_maximum, 0, 0);
return 1;
case HID_GD_Y:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_POSITION_Y);
/* touchscreen emulation */
input_set_abs_params(hi->input, ABS_Y,
field->logical_minimum,
field->logical_maximum, 0, 0);
return 1;
}
return 0;
case HID_UP_DIGITIZER:
switch (usage->hid) {
case HID_DG_TIPSWITCH:
case HID_DG_CONTACTMAX:
return -1;
case HID_DG_INRANGE:
/* touchscreen emulation */
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
return 1;
case HID_DG_CONTACTID:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TRACKING_ID);
return 1;
}
return 0;
}
return 0;
}
static int cando_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if (usage->type == EV_KEY || usage->type == EV_ABS)
clear_bit(usage->code, *bit);
return 0;
}
/*
* 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 cando_filter_event(struct cando_data *td, struct input_dev *input)
{
td->first = !td->first; /* touchscreen emulation */
if (!td->valid) {
/*
* touchscreen emulation: if this is the second finger and
* the first was valid, the first was the oldest; if the
* first was not valid and there was a valid finger in the
* previous frame, this is a release.
*/
if (td->first) {
td->firstid = -1;
} else if (td->firstid >= 0) {
input_event(input, EV_ABS, ABS_X, td->firstx);
input_event(input, EV_ABS, ABS_Y, td->firsty);
td->oldest = td->firstid;
} else if (td->oldest >= 0) {
input_event(input, EV_KEY, BTN_TOUCH, 0);
td->oldest = -1;
}
return;
}
input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
input_mt_sync(input);
/*
* touchscreen emulation: if there was no touching finger previously,
* emit touch event
*/
if (td->oldest < 0) {
input_event(input, EV_KEY, BTN_TOUCH, 1);
td->oldest = td->id;
}
/*
* touchscreen emulation: if this is the first finger, wait for the
* second; the oldest is then the second if it was the oldest already
* or if there was no first, the first otherwise.
*/
if (td->first) {
td->firstx = td->x;
td->firsty = td->y;
td->firstid = td->id;
} else {
int x, y, oldest;
if (td->id == td->oldest || td->firstid < 0) {
x = td->x;
y = td->y;
oldest = td->id;
} else {
x = td->firstx;
y = td->firsty;
oldest = td->firstid;
}
input_event(input, EV_ABS, ABS_X, x);
input_event(input, EV_ABS, ABS_Y, y);
td->oldest = oldest;
}
}
static int cando_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct cando_data *td = hid_get_drvdata(hid);
if (hid->claimed & HID_CLAIMED_INPUT) {
struct input_dev *input = field->hidinput->input;