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Merge branch 'next' into for-linus

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This commit is contained in:
Dmitry Torokhov
2010-08-02 18:35:17 -07:00
parent b326b853dc 0d87c7228a
commit d01d0756f7
56 changed files with 6500 additions and 988 deletions
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Documentation/input/multi-touch-protocol.txt
+148 -68
View File
@@ -6,31 +6,149 @@ Multi-touch (MT) Protocol
Introduction
------------
In order to utilize the full power of the new multi-touch devices, a way to
report detailed finger data to user space is needed. This document
describes the multi-touch (MT) protocol which allows kernel drivers to
report details for an arbitrary number of fingers.
In order to utilize the full power of the new multi-touch and multi-user
devices, a way to report detailed data from multiple contacts, i.e.,
objects in direct contact with the device surface, is needed. This
document describes the multi-touch (MT) protocol which allows kernel
drivers to report details for an arbitrary number of contacts.
The protocol is divided into two types, depending on the capabilities of the
hardware. For devices handling anonymous contacts (type A), the protocol
describes how to send the raw data for all contacts to the receiver. For
devices capable of tracking identifiable contacts (type B), the protocol
describes how to send updates for individual contacts via event slots.
Usage
-----
Protocol Usage
--------------
Anonymous finger details are sent sequentially as separate packets of ABS
events. Only the ABS_MT events are recognized as part of a finger
packet. The end of a packet is marked by calling the input_mt_sync()
function, which generates a SYN_MT_REPORT event. This instructs the
receiver to accept the data for the current finger and prepare to receive
another. The end of a multi-touch transfer is marked by calling the usual
Contact details are sent sequentially as separate packets of ABS_MT
events. Only the ABS_MT events are recognized as part of a contact
packet. Since these events are ignored by current single-touch (ST)
applications, the MT protocol can be implemented on top of the ST protocol
in an existing driver.
Drivers for type A devices separate contact packets by calling
input_mt_sync() at the end of each packet. This generates a SYN_MT_REPORT
event, which instructs the receiver to accept the data for the current
contact and prepare to receive another.
Drivers for type B devices separate contact packets by calling
input_mt_slot(), with a slot as argument, at the beginning of each packet.
This generates an ABS_MT_SLOT event, which instructs the receiver to
prepare for updates of the given slot.
All drivers mark the end of a multi-touch transfer by calling the usual
input_sync() function. This instructs the receiver to act upon events
accumulated since last EV_SYN/SYN_REPORT and prepare to receive a new
set of events/packets.
accumulated since last EV_SYN/SYN_REPORT and prepare to receive a new set
of events/packets.
The main difference between the stateless type A protocol and the stateful
type B slot protocol lies in the usage of identifiable contacts to reduce
the amount of data sent to userspace. The slot protocol requires the use of
the ABS_MT_TRACKING_ID, either provided by the hardware or computed from
the raw data [5].
For type A devices, the kernel driver should generate an arbitrary
enumeration of the full set of anonymous contacts currently on the
surface. The order in which the packets appear in the event stream is not
important. Event filtering and finger tracking is left to user space [3].
For type B devices, the kernel driver should associate a slot with each
identified contact, and use that slot to propagate changes for the contact.
Creation, replacement and destruction of contacts is achieved by modifying
the ABS_MT_TRACKING_ID of the associated slot. A non-negative tracking id
is interpreted as a contact, and the value -1 denotes an unused slot. A
tracking id not previously present is considered new, and a tracking id no
longer present is considered removed. Since only changes are propagated,
the full state of each initiated contact has to reside in the receiving
end. Upon receiving an MT event, one simply updates the appropriate
attribute of the current slot.
Protocol Example A
------------------
Here is what a minimal event sequence for a two-contact touch would look
like for a type A device:
ABS_MT_POSITION_X x[0]
ABS_MT_POSITION_Y y[0]
SYN_MT_REPORT
ABS_MT_POSITION_X x[1]
ABS_MT_POSITION_Y y[1]
SYN_MT_REPORT
SYN_REPORT
The sequence after moving one of the contacts looks exactly the same; the
raw data for all present contacts are sent between every synchronization
with SYN_REPORT.
Here is the sequence after lifting the first contact:
ABS_MT_POSITION_X x[1]
ABS_MT_POSITION_Y y[1]
SYN_MT_REPORT
SYN_REPORT
And here is the sequence after lifting the second contact:
SYN_MT_REPORT
SYN_REPORT
If the driver reports one of BTN_TOUCH or ABS_PRESSURE in addition to the
ABS_MT events, the last SYN_MT_REPORT event may be omitted. Otherwise, the
last SYN_REPORT will be dropped by the input core, resulting in no
zero-contact event reaching userland.
Protocol Example B
------------------
Here is what a minimal event sequence for a two-contact touch would look
like for a type B device:
ABS_MT_SLOT 0
ABS_MT_TRACKING_ID 45
ABS_MT_POSITION_X x[0]
ABS_MT_POSITION_Y y[0]
ABS_MT_SLOT 1
ABS_MT_TRACKING_ID 46
ABS_MT_POSITION_X x[1]
ABS_MT_POSITION_Y y[1]
SYN_REPORT
Here is the sequence after moving contact 45 in the x direction:
ABS_MT_SLOT 0
ABS_MT_POSITION_X x[0]
SYN_REPORT
Here is the sequence after lifting the contact in slot 0:
ABS_MT_TRACKING_ID -1
SYN_REPORT
The slot being modified is already 0, so the ABS_MT_SLOT is omitted. The
message removes the association of slot 0 with contact 45, thereby
destroying contact 45 and freeing slot 0 to be reused for another contact.
Finally, here is the sequence after lifting the second contact:
ABS_MT_SLOT 1
ABS_MT_TRACKING_ID -1
SYN_REPORT
Event Usage
-----------
A set of ABS_MT events with the desired properties is defined. The events
are divided into categories, to allow for partial implementation. The
minimum set consists of ABS_MT_POSITION_X and ABS_MT_POSITION_Y, which
allows for multiple fingers to be tracked. If the device supports it, the
allows for multiple contacts to be tracked. If the device supports it, the
ABS_MT_TOUCH_MAJOR and ABS_MT_WIDTH_MAJOR may be used to provide the size
of the contact area and approaching finger, respectively.
of the contact area and approaching contact, respectively.
The TOUCH and WIDTH parameters have a geometrical interpretation; imagine
looking through a window at someone gently holding a finger against the
@@ -41,56 +159,26 @@ ABS_MT_TOUCH_MAJOR, the diameter of the outer region is
ABS_MT_WIDTH_MAJOR. Now imagine the person pressing the finger harder
against the glass. The inner region will increase, and in general, the
ratio ABS_MT_TOUCH_MAJOR / ABS_MT_WIDTH_MAJOR, which is always smaller than
unity, is related to the finger pressure. For pressure-based devices,
unity, is related to the contact pressure. For pressure-based devices,
ABS_MT_PRESSURE may be used to provide the pressure on the contact area
instead.
In addition to the MAJOR parameters, the oval shape of the finger can be
In addition to the MAJOR parameters, the oval shape of the contact can be
described by adding the MINOR parameters, such that MAJOR and MINOR are the
major and minor axis of an ellipse. Finally, the orientation of the oval
shape can be describe with the ORIENTATION parameter.
The ABS_MT_TOOL_TYPE may be used to specify whether the touching tool is a
finger or a pen or something else. Devices with more granular information
contact or a pen or something else. Devices with more granular information
may specify general shapes as blobs, i.e., as a sequence of rectangular
shapes grouped together by an ABS_MT_BLOB_ID. Finally, for the few devices
that currently support it, the ABS_MT_TRACKING_ID event may be used to
report finger tracking from hardware [5].
report contact tracking from hardware [5].
Here is what a minimal event sequence for a two-finger touch would look
like:
ABS_MT_POSITION_X
ABS_MT_POSITION_Y
SYN_MT_REPORT
ABS_MT_POSITION_X
ABS_MT_POSITION_Y
SYN_MT_REPORT
SYN_REPORT
Here is the sequence after lifting one of the fingers:
ABS_MT_POSITION_X
ABS_MT_POSITION_Y
SYN_MT_REPORT
SYN_REPORT
And here is the sequence after lifting the remaining finger:
SYN_MT_REPORT
SYN_REPORT
If the driver reports one of BTN_TOUCH or ABS_PRESSURE in addition to the
ABS_MT events, the last SYN_MT_REPORT event may be omitted. Otherwise, the
last SYN_REPORT will be dropped by the input core, resulting in no
zero-finger event reaching userland.
Event Semantics
---------------
The word "contact" is used to describe a tool which is in direct contact
with the surface. A finger, a pen or a rubber all classify as contacts.
ABS_MT_TOUCH_MAJOR
The length of the major axis of the contact. The length should be given in
@@ -157,15 +245,16 @@ MT_TOOL_PEN [2].
ABS_MT_BLOB_ID
The BLOB_ID groups several packets together into one arbitrarily shaped
contact. This is a low-level anonymous grouping, and should not be confused
with the high-level trackingID [5]. Most kernel drivers will not have blob
capability, and can safely omit the event.
contact. This is a low-level anonymous grouping for type A devices, and
should not be confused with the high-level trackingID [5]. Most type A
devices do not have blob capability, so drivers can safely omit this event.
ABS_MT_TRACKING_ID
The TRACKING_ID identifies an initiated contact throughout its life cycle
[5]. There are currently only a few devices that support it, so this event
should normally be omitted.
[5]. This event is mandatory for type B devices. The value range of the
TRACKING_ID should be large enough to ensure unique identification of a
contact maintained over an extended period of time.
Event Computation
@@ -192,20 +281,11 @@ finger along the X axis (1).
Finger Tracking
---------------
The kernel driver should generate an arbitrary enumeration of the set of
anonymous contacts currently on the surface. The order in which the packets
appear in the event stream is not important.
The process of finger tracking, i.e., to assign a unique trackingID to each
initiated contact on the surface, is left to user space; preferably the
multi-touch X driver [3]. In that driver, the trackingID stays the same and
unique until the contact vanishes (when the finger leaves the surface). The
problem of assigning a set of anonymous fingers to a set of identified
fingers is a euclidian bipartite matching problem at each event update, and
relies on a sufficiently rapid update rate.
There are a few devices that support trackingID in hardware. User space can
make use of these native identifiers to reduce bandwidth and cpu usage.
initiated contact on the surface, is a Euclidian Bipartite Matching
problem. At each event synchronization, the set of actual contacts is
matched to the set of contacts from the previous synchronization. A full
implementation can be found in [3].
Gestures
arch/arm/plat-samsung/include/plat/keypad.h
+43
View File
@@ -0,0 +1,43 @@
/*
* Samsung Platform - Keypad platform data definitions
*
* Copyright (C) 2010 Samsung Electronics Co.Ltd
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* 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.
*/
#ifndef __PLAT_SAMSUNG_KEYPAD_H
#define __PLAT_SAMSUNG_KEYPAD_H
#include <linux/input/matrix_keypad.h>
#define SAMSUNG_MAX_ROWS 8
#define SAMSUNG_MAX_COLS 8
/**
* struct samsung_keypad_platdata - Platform device data for Samsung Keypad.
* @keymap_data: pointer to &matrix_keymap_data.
* @rows: number of keypad row supported.
* @cols: number of keypad col supported.
* @no_autorepeat: disable key autorepeat.
* @wakeup: controls whether the device should be set up as wakeup source.
* @cfg_gpio: configure the GPIO.
*
* Initialisation data specific to either the machine or the platform
* for the device driver to use or call-back when configuring gpio.
*/
struct samsung_keypad_platdata {
const struct matrix_keymap_data *keymap_data;
unsigned int rows;
unsigned int cols;
bool no_autorepeat;
bool wakeup;
void (*cfg_gpio)(unsigned int rows, unsigned int cols);
};
#endif /* __PLAT_SAMSUNG_KEYPAD_H */
drivers/char/keyboard.c
+5 -1
View File
@@ -1315,10 +1315,14 @@ static bool kbd_match(struct input_handler *handler, struct input_dev *dev)
if (test_bit(EV_SND, dev->evbit))
return true;
if (test_bit(EV_KEY, dev->evbit))
if (test_bit(EV_KEY, dev->evbit)) {
for (i = KEY_RESERVED; i < BTN_MISC; i++)
if (test_bit(i, dev->keybit))
return true;
for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++)
if (test_bit(i, dev->keybit))
return true;
}
return false;
}
drivers/hid/hid-core.c
+1
View File
@@ -1568,6 +1568,7 @@ static const struct hid_device_id hid_ignore_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
drivers/hid/hid-ids.h
+1
View File
@@ -197,6 +197,7 @@
#define USB_VENDOR_ID_ETT 0x0664
#define USB_DEVICE_ID_TC5UH 0x0309
#define USB_DEVICE_ID_TC4UM 0x0306
#define USB_VENDOR_ID_EZKEY 0x0518
#define USB_DEVICE_ID_BTC_8193 0x0002
drivers/hid/hid-input.c
+3
View File
@@ -534,6 +534,9 @@ mapped:
input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
else input_set_abs_params(input, usage->code, a, b, 0, 0);
/* use a larger default input buffer for MT devices */
if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
input_set_events_per_packet(input, 60);
}
if (usage->type == EV_ABS &&
drivers/input/evdev.c
+42 -12
View File
@@ -10,7 +10,8 @@
#define EVDEV_MINOR_BASE 64
#define EVDEV_MINORS 32
#define EVDEV_BUFFER_SIZE 64
#define EVDEV_MIN_BUFFER_SIZE 64U
#define EVDEV_BUF_PACKETS 8
#include <linux/poll.h>
#include <linux/sched.h>
@@ -23,7 +24,6 @@
#include "input-compat.h"
struct evdev {
int exist;
int open;
int minor;
struct input_handle handle;
@@ -33,16 +33,18 @@ struct evdev {
spinlock_t client_lock; /* protects client_list */
struct mutex mutex;
struct device dev;
bool exist;
};
struct evdev_client {
struct input_event buffer[EVDEV_BUFFER_SIZE];
int head;
int tail;
spinlock_t buffer_lock; /* protects access to buffer, head and tail */
struct fasync_struct *fasync;
struct evdev *evdev;
struct list_head node;
int bufsize;
struct input_event buffer[];
};
static struct evdev *evdev_table[EVDEV_MINORS];
@@ -52,11 +54,15 @@ static void evdev_pass_event(struct evdev_client *client,
struct input_event *event)
{
/*
* Interrupts are disabled, just acquire the lock
* Interrupts are disabled, just acquire the lock.
* Make sure we don't leave with the client buffer
* "empty" by having client->head == client->tail.
*/
spin_lock(&client->buffer_lock);
client->buffer[client->head++] = *event;
client->head &= EVDEV_BUFFER_SIZE - 1;
do {
client->buffer[client->head++] = *event;
client->head &= client->bufsize - 1;
} while (client->head == client->tail);
spin_unlock(&client->buffer_lock);
if (event->type == EV_SYN)
@@ -242,11 +248,21 @@ static int evdev_release(struct inode *inode, struct file *file)
return 0;
}
static unsigned int evdev_compute_buffer_size(struct input_dev *dev)
{
unsigned int n_events =
max(dev->hint_events_per_packet * EVDEV_BUF_PACKETS,
EVDEV_MIN_BUFFER_SIZE);
return roundup_pow_of_two(n_events);
}
static int evdev_open(struct inode *inode, struct file *file)
{
struct evdev *evdev;
struct evdev_client *client;
int i = iminor(inode) - EVDEV_MINOR_BASE;
unsigned int bufsize;
int error;
if (i >= EVDEV_MINORS)
@@ -263,12 +279,17 @@ static int evdev_open(struct inode *inode, struct file *file)
if (!evdev)
return -ENODEV;
client = kzalloc(sizeof(struct evdev_client), GFP_KERNEL);
bufsize = evdev_compute_buffer_size(evdev->handle.dev);
client = kzalloc(sizeof(struct evdev_client) +
bufsize * sizeof(struct input_event),
GFP_KERNEL);
if (!client) {
error = -ENOMEM;
goto err_put_evdev;
}
client->bufsize = bufsize;
spin_lock_init(&client->buffer_lock);
client->evdev = evdev;
evdev_attach_client(evdev, client);
@@ -334,7 +355,7 @@ static int evdev_fetch_next_event(struct evdev_client *client,
have_event = client->head != client->tail;
if (have_event) {
*event = client->buffer[client->tail++];
client->tail &= EVDEV_BUFFER_SIZE - 1;
client->tail &= client->bufsize - 1;
}
spin_unlock_irq(&client->buffer_lock);
@@ -382,10 +403,15 @@ static unsigned int evdev_poll(struct file *file, poll_table *wait)
{
struct evdev_client *client = file->private_data;
struct evdev *evdev = client->evdev;
unsigned int mask;
poll_wait(file, &evdev->wait, wait);
return ((client->head == client->tail) ? 0 : (POLLIN | POLLRDNORM)) |
(evdev->exist ? 0 : (POLLHUP | POLLERR));
mask = evdev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR;
if (client->head != client->tail)
mask |= POLLIN | POLLRDNORM;
return mask;
}
#ifdef CONFIG_COMPAT
@@ -665,6 +691,10 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
sizeof(struct input_absinfo))))
return -EFAULT;
/* We can't change number of reserved MT slots */
if (t == ABS_MT_SLOT)
return -EINVAL;
/*
* Take event lock to ensure that we are not
* changing device parameters in the middle
@@ -768,7 +798,7 @@ static void evdev_remove_chrdev(struct evdev *evdev)
static void evdev_mark_dead(struct evdev *evdev)
{
mutex_lock(&evdev->mutex);
evdev->exist = 0;
evdev->exist = false;
mutex_unlock(&evdev->mutex);
}
@@ -817,7 +847,7 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
init_waitqueue_head(&evdev->wait);
dev_set_name(&evdev->dev, "event%d", minor);
evdev->exist = 1;
evdev->exist = true;
evdev->minor = minor;
evdev->handle.dev = input_get_device(dev);
drivers/input/input.c
+125 -57
View File
@@ -33,25 +33,6 @@ MODULE_LICENSE("GPL");
#define INPUT_DEVICES 256
/*
* EV_ABS events which should not be cached are listed here.
*/
static unsigned int input_abs_bypass_init_data[] __initdata = {
ABS_MT_TOUCH_MAJOR,
ABS_MT_TOUCH_MINOR,
ABS_MT_WIDTH_MAJOR,
ABS_MT_WIDTH_MINOR,
ABS_MT_ORIENTATION,
ABS_MT_POSITION_X,
ABS_MT_POSITION_Y,
ABS_MT_TOOL_TYPE,
ABS_MT_BLOB_ID,
ABS_MT_TRACKING_ID,
ABS_MT_PRESSURE,
0
};
static unsigned long input_abs_bypass[BITS_TO_LONGS(ABS_CNT)];
static LIST_HEAD(input_dev_list);
static LIST_HEAD(input_handler_list);
@@ -181,6 +162,56 @@ static void input_stop_autorepeat(struct input_dev *dev)
#define INPUT_PASS_TO_DEVICE 2
#define INPUT_PASS_TO_ALL (INPUT_PASS_TO_HANDLERS | INPUT_PASS_TO_DEVICE)
static int input_handle_abs_event(struct input_dev *dev,
unsigned int code, int *pval)
{
bool is_mt_event;
int *pold;
if (code == ABS_MT_SLOT) {
/*
* "Stage" the event; we'll flush it later, when we
* get actiual touch data.
*/
if (*pval >= 0 && *pval < dev->mtsize)
dev->slot = *pval;
return INPUT_IGNORE_EVENT;
}
is_mt_event = code >= ABS_MT_FIRST && code <= ABS_MT_LAST;
if (!is_mt_event) {
pold = &dev->abs[code];
} else if (dev->mt) {
struct input_mt_slot *mtslot = &dev->mt[dev->slot];
pold = &mtslot->abs[code - ABS_MT_FIRST];
} else {
/*
* Bypass filtering for multitouch events when
* not employing slots.
*/
pold = NULL;
}
if (pold) {
*pval = input_defuzz_abs_event(*pval, *pold,
dev->absfuzz[code]);
if (*pold == *pval)
return INPUT_IGNORE_EVENT;
*pold = *pval;
}
/* Flush pending "slot" event */
if (is_mt_event && dev->slot != dev->abs[ABS_MT_SLOT]) {
dev->abs[ABS_MT_SLOT] = dev->slot;
input_pass_event(dev, EV_ABS, ABS_MT_SLOT, dev->slot);
}
return INPUT_PASS_TO_HANDLERS;
}
static void input_handle_event(struct input_dev *dev,
unsigned int type, unsigned int code, int value)
{
@@ -196,12 +227,12 @@ static void input_handle_event(struct input_dev *dev,
case SYN_REPORT:
if (!dev->sync) {
dev->sync = 1;
dev->sync = true;
disposition = INPUT_PASS_TO_HANDLERS;
}
break;
case SYN_MT_REPORT:
dev->sync = 0;
dev->sync = false;
disposition = INPUT_PASS_TO_HANDLERS;
break;
}
@@ -233,21 +264,9 @@ static void input_handle_event(struct input_dev *dev,
break;
case EV_ABS:
if (is_event_supported(code, dev->absbit, ABS_MAX)) {
if (is_event_supported(code, dev->absbit, ABS_MAX))
disposition = input_handle_abs_event(dev, code, &value);
if (test_bit(code, input_abs_bypass)) {
disposition = INPUT_PASS_TO_HANDLERS;
break;
}
value = input_defuzz_abs_event(value,
dev->abs[code], dev->absfuzz[code]);
if (dev->abs[code] != value) {
dev->abs[code] = value;
disposition = INPUT_PASS_TO_HANDLERS;
}
}
break;
case EV_REL:
@@ -298,7 +317,7 @@ static void input_handle_event(struct input_dev *dev,
}
if (disposition != INPUT_IGNORE_EVENT && type != EV_SYN)
dev->sync = 0;
dev->sync = false;
if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event)
dev->event(dev, type, code, value);
@@ -527,13 +546,31 @@ void input_close_device(struct input_handle *handle)
}
EXPORT_SYMBOL(input_close_device);
/*
* Simulate keyup events for all keys that are marked as pressed.
* The function must be called with dev->event_lock held.
*/
static void input_dev_release_keys(struct input_dev *dev)
{
int code;
if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
for (code = 0; code <= KEY_MAX; code++) {
if (is_event_supported(code, dev->keybit, KEY_MAX) &&
__test_and_clear_bit(code, dev->key)) {
input_pass_event(dev, EV_KEY, code, 0);
}
}
input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
}
}
/*
* Prepare device for unregistering
*/
static void input_disconnect_device(struct input_dev *dev)
{
struct input_handle *handle;
int code;
/*
* Mark device as going away. Note that we take dev->mutex here
@@ -552,15 +589,7 @@ static void input_disconnect_device(struct input_dev *dev)
* generate events even after we done here but they will not
* reach any handlers.
*/
if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
for (code = 0; code <= KEY_MAX; code++) {
if (is_event_supported(code, dev->keybit, KEY_MAX) &&
__test_and_clear_bit(code, dev->key)) {
input_pass_event(dev, EV_KEY, code, 0);
}
}
input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
}
input_dev_release_keys(dev);
list_for_each_entry(handle, &dev->h_list, d_node)
handle->open = 0;
@@ -684,7 +713,7 @@ int input_set_keycode(struct input_dev *dev,
unsigned int scancode, unsigned int keycode)
{
unsigned long flags;
int old_keycode;
unsigned int old_keycode;
int retval;
if (keycode > KEY_MAX)
@@ -1278,6 +1307,7 @@ static void input_dev_release(struct device *device)
struct input_dev *dev = to_input_dev(device);
input_ff_destroy(dev);
input_mt_destroy_slots(dev);
kfree(dev);
module_put(THIS_MODULE);
@@ -1433,6 +1463,15 @@ static int input_dev_resume(struct device *dev)
mutex_lock(&input_dev->mutex);
input_dev_reset(input_dev, true);
/*
* Keys that have been pressed at suspend time are unlikely
* to be still pressed when we resume.
*/
spin_lock_irq(&input_dev->event_lock);
input_dev_release_keys(input_dev);
spin_unlock_irq(&input_dev->event_lock);
mutex_unlock(&input_dev->mutex);
return 0;
@@ -1517,6 +1556,45 @@ void input_free_device(struct input_dev *dev)
}
EXPORT_SYMBOL(input_free_device);
/**
* input_mt_create_slots() - create MT input slots
* @dev: input device supporting MT events and finger tracking
* @num_slots: number of slots used by the device
*
* This function allocates all necessary memory for MT slot handling
* in the input device, and adds ABS_MT_SLOT to the device capabilities.
*/
int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots)
{
if (!num_slots)
return 0;
dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL);
if (!dev->mt)
return -ENOMEM;
dev->mtsize = num_slots;
input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0);
return 0;
}
EXPORT_SYMBOL(input_mt_create_slots);
/**
* input_mt_destroy_slots() - frees the MT slots of the input device
* @dev: input device with allocated MT slots
*
* This function is only needed in error path as the input core will
* automatically free the MT slots when the device is destroyed.
*/
void input_mt_destroy_slots(struct input_dev *dev)
{
kfree(dev->mt);
dev->mt = NULL;
dev->mtsize = 0;
}
EXPORT_SYMBOL(input_mt_destroy_slots);
/**
* input_set_capability - mark device as capable of a certain event
* @dev: device that is capable of emitting or accepting event
@@ -1926,20 +2004,10 @@ static const struct file_operations input_fops = {
.open = input_open_file,
};
static void __init input_init_abs_bypass(void)
{
const unsigned int *p;
for (p = input_abs_bypass_init_data; *p; p++)
input_abs_bypass[BIT_WORD(*p)] |= BIT_MASK(*p);
}
static int __init input_init(void)
{
int err;
input_init_abs_bypass();
err = class_register(&input_class);
if (err) {
printk(KERN_ERR "input: unable to register input_dev class\n");
drivers/input/joydev.c
+3 -4
View File
@@ -37,7 +37,6 @@ MODULE_LICENSE("GPL");
#define JOYDEV_BUFFER_SIZE 64
struct joydev {
int exist;
int open;
int minor;
struct input_handle handle;
@@ -46,6 +45,7 @@ struct joydev {
spinlock_t client_lock; /* protects client_list */
struct mutex mutex;
struct device dev;
bool exist;
struct js_corr corr[ABS_CNT];
struct JS_DATA_SAVE_TYPE glue;
@@ -760,7 +760,7 @@ static void joydev_remove_chrdev(struct joydev *joydev)
static void joydev_mark_dead(struct joydev *joydev)
{
mutex_lock(&joydev->mutex);
joydev->exist = 0;
joydev->exist = false;
mutex_unlock(&joydev->mutex);
}
@@ -817,10 +817,9 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
init_waitqueue_head(&joydev->wait);
dev_set_name(&joydev->dev, "js%d", minor);
joydev->exist = 1;
joydev->exist = true;
joydev->minor = minor;
joydev->exist = 1;
joydev->handle.dev = input_get_device(dev);
joydev->handle.name = dev_name(&joydev->dev);
joydev->handle.handler = handler;
drivers/input/joystick/xpad.c
+61 -42
View File
@@ -9,6 +9,7 @@
* 2005 Dominic Cerquetti <binary1230@yahoo.com>
* 2006 Adam Buchbinder <adam.buchbinder@gmail.com>
* 2007 Jan Kratochvil <honza@jikos.cz>
* 2010 Christoph Fritz <chf.fritz@googlemail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@@ -88,6 +89,9 @@
but we map them to axes when possible to simplify things */
#define MAP_DPAD_TO_BUTTONS (1 << 0)
#define MAP_TRIGGERS_TO_BUTTONS (1 << 1)
#define MAP_STICKS_TO_NULL (1 << 2)
#define DANCEPAD_MAP_CONFIG (MAP_DPAD_TO_BUTTONS | \
MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
#define XTYPE_XBOX 0
#define XTYPE_XBOX360 1
@@ -102,6 +106,10 @@ static int triggers_to_buttons;
module_param(triggers_to_buttons, bool, S_IRUGO);
MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
static int sticks_to_null;
module_param(sticks_to_null, bool, S_IRUGO);
MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
static const struct xpad_device {
u16 idVendor;
u16 idProduct;
@@ -114,7 +122,7 @@ static const struct xpad_device {
{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
@@ -159,7 +167,7 @@ static const struct xpad_device {
/* buttons shared with xbox and xbox360 */
static const signed short xpad_common_btn[] = {
BTN_A, BTN_B, BTN_X, BTN_Y, /* "analog" buttons */
BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
-1 /* terminating entry */
};
@@ -169,10 +177,10 @@ static const signed short xpad_btn[] = {
-1 /* terminating entry */
};
/* used when dpad is mapped to nuttons */
/* used when dpad is mapped to buttons */
static const signed short xpad_btn_pad[] = {
BTN_LEFT, BTN_RIGHT, /* d-pad left, right */
BTN_0, BTN_1, /* d-pad up, down (XXX names??) */
BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2, /* d-pad left, right */
BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4, /* d-pad up, down */
-1 /* terminating entry */
};
@@ -280,17 +288,19 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
{
struct input_dev *dev = xpad->dev;
/* left stick */
input_report_abs(dev, ABS_X,
(__s16) le16_to_cpup((__le16 *)(data + 12)));
input_report_abs(dev, ABS_Y,
~(__s16) le16_to_cpup((__le16 *)(data + 14)));
if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
/* left stick */
input_report_abs(dev, ABS_X,
(__s16) le16_to_cpup((__le16 *)(data + 12)));
input_report_abs(dev, ABS_Y,
~(__s16) le16_to_cpup((__le16 *)(data + 14)));
/* right stick */
input_report_abs(dev, ABS_RX,
(__s16) le16_to_cpup((__le16 *)(data + 16)));
input_report_abs(dev, ABS_RY,
~(__s16) le16_to_cpup((__le16 *)(data + 18)));
/* right stick */
input_report_abs(dev, ABS_RX,
(__s16) le16_to_cpup((__le16 *)(data + 16)));
input_report_abs(dev, ABS_RY,
~(__s16) le16_to_cpup((__le16 *)(data + 18)));
}
/* triggers left/right */
if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
@@ -303,10 +313,11 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
/* digital pad */
if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
input_report_key(dev, BTN_LEFT, data[2] & 0x04);
input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
input_report_key(dev, BTN_0, data[2] & 0x01); /* up */
input_report_key(dev, BTN_1, data[2] & 0x02); /* down */
/* dpad as buttons (left, right, up, down) */
input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
} else {
input_report_abs(dev, ABS_HAT0X,
!!(data[2] & 0x08) - !!(data[2] & 0x04));
@@ -316,7 +327,7 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
/* start/back buttons and stick press left/right */
input_report_key(dev, BTN_START, data[2] & 0x10);
input_report_key(dev, BTN_BACK, data[2] & 0x20);
input_report_key(dev, BTN_SELECT, data[2] & 0x20);
input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
@@ -350,11 +361,11 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
/* digital pad */
if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
/* dpad as buttons (right, left, down, up) */
input_report_key(dev, BTN_LEFT, data[2] & 0x04);
input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
input_report_key(dev, BTN_0, data[2] & 0x01); /* up */
input_report_key(dev, BTN_1, data[2] & 0x02); /* down */
/* dpad as buttons (left, right, up, down) */
input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
} else {
input_report_abs(dev, ABS_HAT0X,
!!(data[2] & 0x08) - !!(data[2] & 0x04));
@@ -364,7 +375,7 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
/* start/back buttons */
input_report_key(dev, BTN_START, data[2] & 0x10);
input_report_key(dev, BTN_BACK, data[2] & 0x20);
input_report_key(dev, BTN_SELECT, data[2] & 0x20);
/* stick press left/right */
input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
@@ -379,17 +390,19 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
input_report_key(dev, BTN_TR, data[3] & 0x02);
input_report_key(dev, BTN_MODE, data[3] & 0x04);
/* left stick */
input_report_abs(dev, ABS_X,
(__s16) le16_to_cpup((__le16 *)(data + 6)));
input_report_abs(dev, ABS_Y,
~(__s16) le16_to_cpup((__le16 *)(data + 8)));
if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
/* left stick */
input_report_abs(dev, ABS_X,
(__s16) le16_to_cpup((__le16 *)(data + 6)));
input_report_abs(dev, ABS_Y,
~(__s16) le16_to_cpup((__le16 *)(data + 8)));
/* right stick */
input_report_abs(dev, ABS_RX,
(__s16) le16_to_cpup((__le16 *)(data + 10)));
input_report_abs(dev, ABS_RY,
~(__s16) le16_to_cpup((__le16 *)(data + 12)));
/* right stick */
input_report_abs(dev, ABS_RX,
(__s16) le16_to_cpup((__le16 *)(data + 10)));
input_report_abs(dev, ABS_RY,
~(__s16) le16_to_cpup((__le16 *)(data + 12)));
}
/* triggers left/right */
if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
@@ -815,6 +828,8 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
xpad->mapping |= MAP_DPAD_TO_BUTTONS;
if (triggers_to_buttons)
xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
if (sticks_to_null)
xpad->mapping |= MAP_STICKS_TO_NULL;
}
xpad->dev = input_dev;
@@ -831,16 +846,20 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
input_dev->open = xpad_open;
input_dev->close = xpad_close;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input_dev->evbit[0] = BIT_MASK(EV_KEY);
/* set up standard buttons and axes */
if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
input_dev->evbit[0] |= BIT_MASK(EV_ABS);
/* set up axes */
for (i = 0; xpad_abs[i] >= 0; i++)
xpad_set_up_abs(input_dev, xpad_abs[i]);
}
/* set up standard buttons */
for (i = 0; xpad_common_btn[i] >= 0; i++)
__set_bit(xpad_common_btn[i], input_dev->keybit);
for (i = 0; xpad_abs[i] >= 0; i++)
xpad_set_up_abs(input_dev, xpad_abs[i]);
/* Now set up model-specific ones */
/* set up model-specific ones */
if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W) {
for (i = 0; xpad360_btn[i] >= 0; i++)
__set_bit(xpad360_btn[i], input_dev->keybit);
drivers/input/keyboard/Kconfig
+21
View File
@@ -297,6 +297,18 @@ config KEYBOARD_MAX7359
To compile this driver as a module, choose M here: the
module will be called max7359_keypad.
config KEYBOARD_MCS
tristate "MELFAS MCS Touchkey"
depends on I2C
help
Say Y here if you have the MELFAS MCS5000/5080 touchkey controller
chip in your system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called mcs_touchkey.
config KEYBOARD_IMX
tristate "IMX keypad support"
depends on ARCH_MXC
@@ -342,6 +354,15 @@ config KEYBOARD_PXA930_ROTARY
To compile this driver as a module, choose M here: the
module will be called pxa930_rotary.
config KEYBOARD_SAMSUNG
tristate "Samsung keypad support"
depends on SAMSUNG_DEV_KEYPAD
help
Say Y here if you want to use the Samsung keypad.
To compile this driver as a module, choose M here: the
module will be called samsung-keypad.
config KEYBOARD_STOWAWAY
tristate "Stowaway keyboard"
select SERIO
drivers/input/keyboard/Makefile
+2
View File
@@ -26,12 +26,14 @@ obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o
obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o
obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o
obj-$(CONFIG_KEYBOARD_MAX7359) += max7359_keypad.o
obj-$(CONFIG_KEYBOARD_MCS) += mcs_touchkey.o
obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o
obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o
obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
obj-$(CONFIG_KEYBOARD_SAMSUNG) += samsung-keypad.o
obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o
obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o
drivers/input/keyboard/adp5588-keys.c
+342 -9
View File
@@ -19,6 +19,7 @@
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/i2c/adp5588.h>
@@ -54,6 +55,10 @@
#define KEYP_MAX_EVENT 10
#define MAXGPIO 18
#define ADP_BANK(offs) ((offs) >> 3)
#define ADP_BIT(offs) (1u << ((offs) & 0x7))
/*
* Early pre 4.0 Silicon required to delay readout by at least 25ms,
* since the Event Counter Register updated 25ms after the interrupt
@@ -67,6 +72,16 @@ struct adp5588_kpad {
struct delayed_work work;
unsigned long delay;
unsigned short keycode[ADP5588_KEYMAPSIZE];
const struct adp5588_gpi_map *gpimap;
unsigned short gpimapsize;
#ifdef CONFIG_GPIOLIB
unsigned char gpiomap[MAXGPIO];
bool export_gpio;
struct gpio_chip gc;
struct mutex gpio_lock; /* Protect cached dir, dat_out */
u8 dat_out[3];
u8 dir[3];
#endif
};
static int adp5588_read(struct i2c_client *client, u8 reg)
@@ -84,12 +99,222 @@ static int adp5588_write(struct i2c_client *client, u8 reg, u8 val)
return i2c_smbus_write_byte_data(client, reg, val);
}
#ifdef CONFIG_GPIOLIB
static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off)
{
struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
return !!(adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank) & bit);
}
static void adp5588_gpio_set_value(struct gpio_chip *chip,
unsigned off, int val)
{
struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
mutex_lock(&kpad->gpio_lock);
if (val)
kpad->dat_out[bank] |= bit;
else
kpad->dat_out[bank] &= ~bit;
adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
kpad->dat_out[bank]);
mutex_unlock(&kpad->gpio_lock);
}
static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off)
{
struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
int ret;
mutex_lock(&kpad->gpio_lock);
kpad->dir[bank] &= ~bit;
ret = adp5588_write(kpad->client, GPIO_DIR1 + bank, kpad->dir[bank]);
mutex_unlock(&kpad->gpio_lock);
return ret;
}
static int adp5588_gpio_direction_output(struct gpio_chip *chip,
unsigned off, int val)
{
struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
int ret;
mutex_lock(&kpad->gpio_lock);
kpad->dir[bank] |= bit;
if (val)
kpad->dat_out[bank] |= bit;
else
kpad->dat_out[bank] &= ~bit;
ret = adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
kpad->dat_out[bank]);
ret |= adp5588_write(kpad->client, GPIO_DIR1 + bank,
kpad->dir[bank]);
mutex_unlock(&kpad->gpio_lock);
return ret;
}
static int __devinit adp5588_build_gpiomap(struct adp5588_kpad *kpad,
const struct adp5588_kpad_platform_data *pdata)
{
bool pin_used[MAXGPIO];
int n_unused = 0;
int i;
memset(pin_used, 0, sizeof(pin_used));
for (i = 0; i < pdata->rows; i++)
pin_used[i] = true;
for (i = 0; i < pdata->cols; i++)
pin_used[i + GPI_PIN_COL_BASE - GPI_PIN_BASE] = true;
for (i = 0; i < kpad->gpimapsize; i++)
pin_used[kpad->gpimap[i].pin - GPI_PIN_BASE] = true;
for (i = 0; i < MAXGPIO; i++)
if (!pin_used[i])
kpad->gpiomap[n_unused++] = i;
return n_unused;
}
static int __devinit adp5588_gpio_add(struct adp5588_kpad *kpad)
{
struct device *dev = &kpad->client->dev;
const struct adp5588_kpad_platform_data *pdata = dev->platform_data;
const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
int i, error;
if (!gpio_data)
return 0;
kpad->gc.ngpio = adp5588_build_gpiomap(kpad, pdata);
if (kpad->gc.ngpio == 0) {
dev_info(dev, "No unused gpios left to export\n");
return 0;
}
kpad->export_gpio = true;
kpad->gc.direction_input = adp5588_gpio_direction_input;
kpad->gc.direction_output = adp5588_gpio_direction_output;
kpad->gc.get = adp5588_gpio_get_value;
kpad->gc.set = adp5588_gpio_set_value;
kpad->gc.can_sleep = 1;
kpad->gc.base = gpio_data->gpio_start;
kpad->gc.label = kpad->client->name;
kpad->gc.owner = THIS_MODULE;
mutex_init(&kpad->gpio_lock);
error = gpiochip_add(&kpad->gc);
if (error) {
dev_err(dev, "gpiochip_add failed, err: %d\n", error);
return error;
}
for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
kpad->dat_out[i] = adp5588_read(kpad->client,
GPIO_DAT_OUT1 + i);
kpad->dir[i] = adp5588_read(kpad->client, GPIO_DIR1 + i);
}
if (gpio_data->setup) {
error = gpio_data->setup(kpad->client,
kpad->gc.base, kpad->gc.ngpio,
gpio_data->context);
if (error)
dev_warn(dev, "setup failed, %d\n", error);
}
return 0;
}
static void __devexit adp5588_gpio_remove(struct adp5588_kpad *kpad)
{
struct device *dev = &kpad->client->dev;
const struct adp5588_kpad_platform_data *pdata = dev->platform_data;
const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
int error;
if (!kpad->export_gpio)
return;
if (gpio_data->teardown) {
error = gpio_data->teardown(kpad->client,
kpad->gc.base, kpad->gc.ngpio,
gpio_data->context);
if (error)
dev_warn(dev, "teardown failed %d\n", error);
}
error = gpiochip_remove(&kpad->gc);
if (error)
dev_warn(dev, "gpiochip_remove failed %d\n", error);
}
#else
static inline int adp5588_gpio_add(struct adp5588_kpad *kpad)
{
return 0;
}
static inline void adp5588_gpio_remove(struct adp5588_kpad *kpad)
{
}
#endif
static void adp5588_report_events(struct adp5588_kpad *kpad, int ev_cnt)
{
int i, j;
for (i = 0; i < ev_cnt; i++) {
int key = adp5588_read(kpad->client, Key_EVENTA + i);
int key_val = key & KEY_EV_MASK;
if (key_val >= GPI_PIN_BASE && key_val <= GPI_PIN_END) {
for (j = 0; j < kpad->gpimapsize; j++) {
if (key_val == kpad->gpimap[j].pin) {
input_report_switch(kpad->input,
kpad->gpimap[j].sw_evt,
key & KEY_EV_PRESSED);
break;
}
}
} else {
input_report_key(kpad->input,
kpad->keycode[key_val - 1],
key & KEY_EV_PRESSED);
}
}
}
static void adp5588_work(struct work_struct *work)
{
struct adp5588_kpad *kpad = container_of(work,
struct adp5588_kpad, work.work);
struct i2c_client *client = kpad->client;
int i, key, status, ev_cnt;
int status, ev_cnt;
status = adp5588_read(client, INT_STAT);
@@ -99,12 +324,7 @@ static void adp5588_work(struct work_struct *work)
if (status & KE_INT) {
ev_cnt = adp5588_read(client, KEY_LCK_EC_STAT) & KEC;
if (ev_cnt) {
for (i = 0; i < ev_cnt; i++) {
key = adp5588_read(client, Key_EVENTA + i);
input_report_key(kpad->input,
kpad->keycode[(key & KEY_EV_MASK) - 1],
key & KEY_EV_PRESSED);
}
adp5588_report_events(kpad, ev_cnt);
input_sync(kpad->input);
}
}
@@ -128,8 +348,10 @@ static irqreturn_t adp5588_irq(int irq, void *handle)
static int __devinit adp5588_setup(struct i2c_client *client)
{
struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
int i, ret;
unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
ret = adp5588_write(client, KP_GPIO1, KP_SEL(pdata->rows));
ret |= adp5588_write(client, KP_GPIO2, KP_SEL(pdata->cols) & 0xFF);
@@ -144,6 +366,32 @@ static int __devinit adp5588_setup(struct i2c_client *client)
for (i = 0; i < KEYP_MAX_EVENT; i++)
ret |= adp5588_read(client, Key_EVENTA);
for (i = 0; i < pdata->gpimapsize; i++) {
unsigned short pin = pdata->gpimap[i].pin;
if (pin <= GPI_PIN_ROW_END) {
evt_mode1 |= (1 << (pin - GPI_PIN_ROW_BASE));
} else {
evt_mode2 |= ((1 << (pin - GPI_PIN_COL_BASE)) & 0xFF);
evt_mode3 |= ((1 << (pin - GPI_PIN_COL_BASE)) >> 8);
}
}
if (pdata->gpimapsize) {
ret |= adp5588_write(client, GPI_EM1, evt_mode1);
ret |= adp5588_write(client, GPI_EM2, evt_mode2);
ret |= adp5588_write(client, GPI_EM3, evt_mode3);
}
if (gpio_data) {
for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
int pull_mask = gpio_data->pullup_dis_mask;
ret |= adp5588_write(client, GPIO_PULL1 + i,
(pull_mask >> (8 * i)) & 0xFF);
}
}
ret |= adp5588_write(client, INT_STAT, CMP2_INT | CMP1_INT |
OVR_FLOW_INT | K_LCK_INT |
GPI_INT | KE_INT); /* Status is W1C */
@@ -158,11 +406,49 @@ static int __devinit adp5588_setup(struct i2c_client *client)
return 0;
}
static void __devinit adp5588_report_switch_state(struct adp5588_kpad *kpad)
{
int gpi_stat1 = adp5588_read(kpad->client, GPIO_DAT_STAT1);
int gpi_stat2 = adp5588_read(kpad->client, GPIO_DAT_STAT2);
int gpi_stat3 = adp5588_read(kpad->client, GPIO_DAT_STAT3);
int gpi_stat_tmp, pin_loc;
int i;
for (i = 0; i < kpad->gpimapsize; i++) {
unsigned short pin = kpad->gpimap[i].pin;
if (pin <= GPI_PIN_ROW_END) {
gpi_stat_tmp = gpi_stat1;
pin_loc = pin - GPI_PIN_ROW_BASE;
} else if ((pin - GPI_PIN_COL_BASE) < 8) {
gpi_stat_tmp = gpi_stat2;
pin_loc = pin - GPI_PIN_COL_BASE;
} else {
gpi_stat_tmp = gpi_stat3;
pin_loc = pin - GPI_PIN_COL_BASE - 8;
}
if (gpi_stat_tmp < 0) {
dev_err(&kpad->client->dev,
"Can't read GPIO_DAT_STAT switch %d default to OFF\n",
pin);
gpi_stat_tmp = 0;
}
input_report_switch(kpad->input,
kpad->gpimap[i].sw_evt,
!(gpi_stat_tmp & (1 << pin_loc)));
}
input_sync(kpad->input);
}
static int __devinit adp5588_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct adp5588_kpad *kpad;
struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
struct input_dev *input;
unsigned int revid;
int ret, i;
@@ -189,6 +475,37 @@ static int __devinit adp5588_probe(struct i2c_client *client,
return -EINVAL;
}
if (!pdata->gpimap && pdata->gpimapsize) {
dev_err(&client->dev, "invalid gpimap from pdata\n");
return -EINVAL;
}
if (pdata->gpimapsize > ADP5588_GPIMAPSIZE_MAX) {
dev_err(&client->dev, "invalid gpimapsize\n");
return -EINVAL;
}
for (i = 0; i < pdata->gpimapsize; i++) {
unsigned short pin = pdata->gpimap[i].pin;
if (pin < GPI_PIN_BASE || pin > GPI_PIN_END) {
dev_err(&client->dev, "invalid gpi pin data\n");
return -EINVAL;
}
if (pin <= GPI_PIN_ROW_END) {
if (pin - GPI_PIN_ROW_BASE + 1 <= pdata->rows) {
dev_err(&client->dev, "invalid gpi row data\n");
return -EINVAL;
}
} else {
if (pin - GPI_PIN_COL_BASE + 1 <= pdata->cols) {
dev_err(&client->dev, "invalid gpi col data\n");
return -EINVAL;
}
}
}
if (!client->irq) {
dev_err(&client->dev, "no IRQ?\n");
return -EINVAL;
@@ -233,6 +550,9 @@ static int __devinit adp5588_probe(struct i2c_client *client,
memcpy(kpad->keycode, pdata->keymap,
pdata->keymapsize * input->keycodesize);
kpad->gpimap = pdata->gpimap;
kpad->gpimapsize = pdata->gpimapsize;
/* setup input device */
__set_bit(EV_KEY, input->evbit);
@@ -243,6 +563,11 @@ static int __devinit adp5588_probe(struct i2c_client *client,
__set_bit(kpad->keycode[i] & KEY_MAX, input->keybit);
__clear_bit(KEY_RESERVED, input->keybit);
if (kpad->gpimapsize)
__set_bit(EV_SW, input->evbit);
for (i = 0; i < kpad->gpimapsize; i++)
__set_bit(kpad->gpimap[i].sw_evt, input->swbit);
error = input_register_device(input);
if (error) {
dev_err(&client->dev, "unable to register input device\n");
@@ -261,6 +586,13 @@ static int __devinit adp5588_probe(struct i2c_client *client,
if (error)
goto err_free_irq;
if (kpad->gpimapsize)
adp5588_report_switch_state(kpad);
error = adp5588_gpio_add(kpad);
if (error)
goto err_free_irq;
device_init_wakeup(&client->dev, 1);
i2c_set_clientdata(client, kpad);
@@ -287,6 +619,7 @@ static int __devexit adp5588_remove(struct i2c_client *client)
free_irq(client->irq, kpad);
cancel_delayed_work_sync(&kpad->work);
input_unregister_device(kpad->input);
adp5588_gpio_remove(kpad);
kfree(kpad);
return 0;
drivers/input/keyboard/gpio_keys.c
+14 -5
View File
@@ -31,6 +31,7 @@ struct gpio_button_data {
struct input_dev *input;
struct timer_list timer;
struct work_struct work;
int timer_debounce; /* in msecs */
bool disabled;
};
@@ -109,7 +110,7 @@ static void gpio_keys_disable_button(struct gpio_button_data *bdata)
* Disable IRQ and possible debouncing timer.
*/
disable_irq(gpio_to_irq(bdata->button->gpio));
if (bdata->button->debounce_interval)
if (bdata->timer_debounce)
del_timer_sync(&bdata->timer);
bdata->disabled = true;
@@ -347,9 +348,9 @@ static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
BUG_ON(irq != gpio_to_irq(button->gpio));
if (button->debounce_interval)
if (bdata->timer_debounce)
mod_timer(&bdata->timer,
jiffies + msecs_to_jiffies(button->debounce_interval));
jiffies + msecs_to_jiffies(bdata->timer_debounce));
else
schedule_work(&bdata->work);
@@ -383,6 +384,14 @@ static int __devinit gpio_keys_setup_key(struct platform_device *pdev,
goto fail3;
}
if (button->debounce_interval) {
error = gpio_set_debounce(button->gpio,
button->debounce_interval * 1000);
/* use timer if gpiolib doesn't provide debounce */
if (error < 0)
bdata->timer_debounce = button->debounce_interval;
}
irq = gpio_to_irq(button->gpio);
if (irq < 0) {
error = irq;
@@ -498,7 +507,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
fail2:
while (--i >= 0) {
free_irq(gpio_to_irq(pdata->buttons[i].gpio), &ddata->data[i]);
if (pdata->buttons[i].debounce_interval)
if (ddata->data[i].timer_debounce)
del_timer_sync(&ddata->data[i].timer);
cancel_work_sync(&ddata->data[i].work);
gpio_free(pdata->buttons[i].gpio);
@@ -526,7 +535,7 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
for (i = 0; i < pdata->nbuttons; i++) {
int irq = gpio_to_irq(pdata->buttons[i].gpio);
free_irq(irq, &ddata->data[i]);
if (pdata->buttons[i].debounce_interval)
if (ddata->data[i].timer_debounce)
del_timer_sync(&ddata->data[i].timer);
cancel_work_sync(&ddata->data[i].work);
gpio_free(pdata->buttons[i].gpio);
drivers/input/keyboard/lm8323.c
+7 -5
View File
@@ -642,6 +642,7 @@ static int __devinit lm8323_probe(struct i2c_client *client,
struct lm8323_platform_data *pdata = client->dev.platform_data;
struct input_dev *idev;
struct lm8323_chip *lm;
int pwm;
int i, err;
unsigned long tmo;
u8 data[2];
@@ -710,8 +711,9 @@ static int __devinit lm8323_probe(struct i2c_client *client,
goto fail1;
}
for (i = 0; i < LM8323_NUM_PWMS; i++) {
err = init_pwm(lm, i + 1, &client->dev, pdata->pwm_names[i]);
for (pwm = 0; pwm < LM8323_NUM_PWMS; pwm++) {
err = init_pwm(lm, pwm + 1, &client->dev,
pdata->pwm_names[pwm]);
if (err < 0)
goto fail2;
}
@@ -764,9 +766,9 @@ fail4:
fail3:
device_remove_file(&client->dev, &dev_attr_disable_kp);
fail2:
while (--i >= 0)
if (lm->pwm[i].enabled)
led_classdev_unregister(&lm->pwm[i].cdev);
while (--pwm >= 0)
if (lm->pwm[pwm].enabled)
led_classdev_unregister(&lm->pwm[pwm].cdev);
fail1:
input_free_device(idev);
kfree(lm);
drivers/input/keyboard/matrix_keypad.c
+83 -31
View File
@@ -37,6 +37,7 @@ struct matrix_keypad {
spinlock_t lock;
bool scan_pending;
bool stopped;
bool gpio_all_disabled;
};
/*
@@ -87,8 +88,12 @@ static void enable_row_irqs(struct matrix_keypad *keypad)
const struct matrix_keypad_platform_data *pdata = keypad->pdata;
int i;
for (i = 0; i < pdata->num_row_gpios; i++)
enable_irq(gpio_to_irq(pdata->row_gpios[i]));
if (pdata->clustered_irq > 0)
enable_irq(pdata->clustered_irq);
else {
for (i = 0; i < pdata->num_row_gpios; i++)
enable_irq(gpio_to_irq(pdata->row_gpios[i]));
}
}
static void disable_row_irqs(struct matrix_keypad *keypad)
@@ -96,8 +101,12 @@ static void disable_row_irqs(struct matrix_keypad *keypad)
const struct matrix_keypad_platform_data *pdata = keypad->pdata;
int i;
for (i = 0; i < pdata->num_row_gpios; i++)
disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i]));
if (pdata->clustered_irq > 0)
disable_irq_nosync(pdata->clustered_irq);
else {
for (i = 0; i < pdata->num_row_gpios; i++)
disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i]));
}
}
/*
@@ -216,25 +225,58 @@ static void matrix_keypad_stop(struct input_dev *dev)
}
#ifdef CONFIG_PM
static int matrix_keypad_suspend(struct device *dev)
static void matrix_keypad_enable_wakeup(struct matrix_keypad *keypad)
{
struct platform_device *pdev = to_platform_device(dev);
struct matrix_keypad *keypad = platform_get_drvdata(pdev);
const struct matrix_keypad_platform_data *pdata = keypad->pdata;
unsigned int gpio;
int i;
matrix_keypad_stop(keypad->input_dev);
if (pdata->clustered_irq > 0) {
if (enable_irq_wake(pdata->clustered_irq) == 0)
keypad->gpio_all_disabled = true;
} else {
if (device_may_wakeup(&pdev->dev)) {
for (i = 0; i < pdata->num_row_gpios; i++) {
if (!test_bit(i, keypad->disabled_gpios)) {
unsigned int gpio = pdata->row_gpios[i];
gpio = pdata->row_gpios[i];
if (enable_irq_wake(gpio_to_irq(gpio)) == 0)
__set_bit(i, keypad->disabled_gpios);
}
}
}
}
static void matrix_keypad_disable_wakeup(struct matrix_keypad *keypad)
{
const struct matrix_keypad_platform_data *pdata = keypad->pdata;
unsigned int gpio;
int i;
if (pdata->clustered_irq > 0) {
if (keypad->gpio_all_disabled) {
disable_irq_wake(pdata->clustered_irq);
keypad->gpio_all_disabled = false;
}
} else {
for (i = 0; i < pdata->num_row_gpios; i++) {
if (test_and_clear_bit(i, keypad->disabled_gpios)) {
gpio = pdata->row_gpios[i];
disable_irq_wake(gpio_to_irq(gpio));
}
}
}
}
static int matrix_keypad_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct matrix_keypad *keypad = platform_get_drvdata(pdev);
matrix_keypad_stop(keypad->input_dev);
if (device_may_wakeup(&pdev->dev))
matrix_keypad_enable_wakeup(keypad);
return 0;
}
@@ -243,18 +285,9 @@ static int matrix_keypad_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct matrix_keypad *keypad = platform_get_drvdata(pdev);
const struct matrix_keypad_platform_data *pdata = keypad->pdata;
int i;
if (device_may_wakeup(&pdev->dev)) {
for (i = 0; i < pdata->num_row_gpios; i++) {
if (test_and_clear_bit(i, keypad->disabled_gpios)) {
unsigned int gpio = pdata->row_gpios[i];
disable_irq_wake(gpio_to_irq(gpio));
}
}
}
if (device_may_wakeup(&pdev->dev))
matrix_keypad_disable_wakeup(keypad);
matrix_keypad_start(keypad->input_dev);
@@ -296,17 +329,31 @@ static int __devinit init_matrix_gpio(struct platform_device *pdev,
gpio_direction_input(pdata->row_gpios[i]);
}
for (i = 0; i < pdata->num_row_gpios; i++) {
err = request_irq(gpio_to_irq(pdata->row_gpios[i]),
if (pdata->clustered_irq > 0) {
err = request_irq(pdata->clustered_irq,
matrix_keypad_interrupt,
IRQF_DISABLED |
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
pdata->clustered_irq_flags,
"matrix-keypad", keypad);
if (err) {
dev_err(&pdev->dev,
"Unable to acquire interrupt for GPIO line %i\n",
pdata->row_gpios[i]);
goto err_free_irqs;
"Unable to acquire clustered interrupt\n");
goto err_free_rows;
}
} else {
for (i = 0; i < pdata->num_row_gpios; i++) {
err = request_irq(gpio_to_irq(pdata->row_gpios[i]),
matrix_keypad_interrupt,
IRQF_DISABLED |
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
"matrix-keypad", keypad);
if (err) {
dev_err(&pdev->dev,
"Unable to acquire interrupt "
"for GPIO line %i\n",
pdata->row_gpios[i]);
goto err_free_irqs;
}
}
}
@@ -418,11 +465,16 @@ static int __devexit matrix_keypad_remove(struct platform_device *pdev)
device_init_wakeup(&pdev->dev, 0);
for (i = 0; i < pdata->num_row_gpios; i++) {
free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);
gpio_free(pdata->row_gpios[i]);
if (pdata->clustered_irq > 0) {
free_irq(pdata->clustered_irq, keypad);
} else {
for (i = 0; i < pdata->num_row_gpios; i++)
free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);
}
for (i = 0; i < pdata->num_row_gpios; i++)
gpio_free(pdata->row_gpios[i]);
for (i = 0; i < pdata->num_col_gpios; i++)
gpio_free(pdata->col_gpios[i]);
drivers/input/keyboard/mcs_touchkey.c
+239
View File
@@ -0,0 +1,239 @@
/*
* mcs_touchkey.c - Touchkey driver for MELFAS MCS5000/5080 controller
*
* Copyright (C) 2010 Samsung Electronics Co.Ltd
* Author: HeungJun Kim <riverful.kim@samsung.com>
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* 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/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/i2c/mcs.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/irq.h>
#include <linux/slab.h>
/* MCS5000 Touchkey */
#define MCS5000_TOUCHKEY_STATUS 0x04
#define MCS5000_TOUCHKEY_STATUS_PRESS 7
#define MCS5000_TOUCHKEY_FW 0x0a
#define MCS5000_TOUCHKEY_BASE_VAL 0x61
/* MCS5080 Touchkey */
#define MCS5080_TOUCHKEY_STATUS 0x00
#define MCS5080_TOUCHKEY_STATUS_PRESS 3
#define MCS5080_TOUCHKEY_FW 0x01
#define MCS5080_TOUCHKEY_BASE_VAL 0x1
enum mcs_touchkey_type {
MCS5000_TOUCHKEY,
MCS5080_TOUCHKEY,
};
struct mcs_touchkey_chip {
unsigned int status_reg;
unsigned int pressbit;
unsigned int press_invert;
unsigned int baseval;
};
struct mcs_touchkey_data {
struct i2c_client *client;
struct input_dev *input_dev;
struct mcs_touchkey_chip chip;
unsigned int key_code;
unsigned int key_val;
unsigned short keycodes[];
};
static irqreturn_t mcs_touchkey_interrupt(int irq, void *dev_id)
{
struct mcs_touchkey_data *data = dev_id;
struct mcs_touchkey_chip *chip = &data->chip;
struct i2c_client *client = data->client;
struct input_dev *input = data->input_dev;
unsigned int key_val;
unsigned int pressed;
int val;
val = i2c_smbus_read_byte_data(client, chip->status_reg);
if (val < 0) {
dev_err(&client->dev, "i2c read error [%d]\n", val);
goto out;
}
pressed = (val & (1 << chip->pressbit)) >> chip->pressbit;
if (chip->press_invert)
pressed ^= chip->press_invert;
/* key_val is 0 when released, so we should use key_val of press. */
if (pressed) {
key_val = val & (0xff >> (8 - chip->pressbit));
if (!key_val)
goto out;
key_val -= chip->baseval;
data->key_code = data->keycodes[key_val];
data->key_val = key_val;
}
input_event(input, EV_MSC, MSC_SCAN, data->key_val);
input_report_key(input, data->key_code, pressed);
input_sync(input);
dev_dbg(&client->dev, "key %d %d %s\n", data->key_val, data->key_code,
pressed ? "pressed" : "released");
out:
return IRQ_HANDLED;
}
static int __devinit mcs_touchkey_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct mcs_platform_data *pdata;
struct mcs_touchkey_data *data;
struct input_dev *input_dev;
unsigned int fw_reg;
int fw_ver;
int error;
int i;
pdata = client->dev.platform_data;
if (!pdata) {
dev_err(&client->dev, "no platform data defined\n");
return -EINVAL;
}
data = kzalloc(sizeof(struct mcs_touchkey_data) +
sizeof(data->keycodes[0]) * (pdata->key_maxval + 1),
GFP_KERNEL);
input_dev = input_allocate_device();
if (!data || !input_dev) {
dev_err(&client->dev, "Failed to allocate memory\n");
error = -ENOMEM;
goto err_free_mem;
}
data->client = client;
data->input_dev = input_dev;
if (id->driver_data == MCS5000_TOUCHKEY) {
data->chip.status_reg = MCS5000_TOUCHKEY_STATUS;
data->chip.pressbit = MCS5000_TOUCHKEY_STATUS_PRESS;
data->chip.baseval = MCS5000_TOUCHKEY_BASE_VAL;
fw_reg = MCS5000_TOUCHKEY_FW;
} else {
data->chip.status_reg = MCS5080_TOUCHKEY_STATUS;
data->chip.pressbit = MCS5080_TOUCHKEY_STATUS_PRESS;
data->chip.press_invert = 1;
data->chip.baseval = MCS5080_TOUCHKEY_BASE_VAL;
fw_reg = MCS5080_TOUCHKEY_FW;
}
fw_ver = i2c_smbus_read_byte_data(client, fw_reg);
if (fw_ver < 0) {
error = fw_ver;
dev_err(&client->dev, "i2c read error[%d]\n", error);
goto err_free_mem;
}
dev_info(&client->dev, "Firmware version: %d\n", fw_ver);
input_dev->name = "MELPAS MCS Touchkey";
input_dev->id.bustype = BUS_I2C;
input_dev->dev.parent = &client->dev;
input_dev->evbit[0] = BIT_MASK(EV_KEY);
if (!pdata->no_autorepeat)
input_dev->evbit[0] |= BIT_MASK(EV_REP);
input_dev->keycode = data->keycodes;
input_dev->keycodesize = sizeof(data->keycodes[0]);
input_dev->keycodemax = pdata->key_maxval + 1;
for (i = 0; i < pdata->keymap_size; i++) {
unsigned int val = MCS_KEY_VAL(pdata->keymap[i]);
unsigned int code = MCS_KEY_CODE(pdata->keymap[i]);
data->keycodes[val] = code;
__set_bit(code, input_dev->keybit);
}
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
input_set_drvdata(input_dev, data);
if (pdata->cfg_pin)
pdata->cfg_pin();
error = request_threaded_irq(client->irq, NULL, mcs_touchkey_interrupt,
IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
if (error) {
dev_err(&client->dev, "Failed to register interrupt\n");
goto err_free_mem;
}
error = input_register_device(input_dev);
if (error)
goto err_free_irq;
i2c_set_clientdata(client, data);
return 0;
err_free_irq:
free_irq(client->irq, data);
err_free_mem:
input_free_device(input_dev);
kfree(data);
return error;
}
static int __devexit mcs_touchkey_remove(struct i2c_client *client)
{
struct mcs_touchkey_data *data = i2c_get_clientdata(client);
free_irq(client->irq, data);
input_unregister_device(data->input_dev);
kfree(data);
return 0;
}
static const struct i2c_device_id mcs_touchkey_id[] = {
{ "mcs5000_touchkey", MCS5000_TOUCHKEY },
{ "mcs5080_touchkey", MCS5080_TOUCHKEY },
{ }
};
MODULE_DEVICE_TABLE(i2c, mcs_touchkey_id);
static struct i2c_driver mcs_touchkey_driver = {
.driver = {
.name = "mcs_touchkey",
.owner = THIS_MODULE,
},
.probe = mcs_touchkey_probe,
.remove = __devexit_p(mcs_touchkey_remove),
.id_table = mcs_touchkey_id,
};
static int __init mcs_touchkey_init(void)
{
return i2c_add_driver(&mcs_touchkey_driver);
}
static void __exit mcs_touchkey_exit(void)
{
i2c_del_driver(&mcs_touchkey_driver);
}
module_init(mcs_touchkey_init);
module_exit(mcs_touchkey_exit);
/* Module information */
MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
MODULE_AUTHOR("HeungJun Kim <riverful.kim@samsung.com>");
MODULE_DESCRIPTION("Touchkey driver for MELFAS MCS5000/5080 controller");
MODULE_LICENSE("GPL");
drivers/input/keyboard/samsung-keypad.c
+491
View File
@@ -0,0 +1,491 @@
/*
* Samsung keypad driver
*
* Copyright (C) 2010 Samsung Electronics Co.Ltd
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
* Author: Donghwa Lee <dh09.lee@samsung.com>
*
* 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/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <plat/keypad.h>
#define SAMSUNG_KEYIFCON 0x00
#define SAMSUNG_KEYIFSTSCLR 0x04
#define SAMSUNG_KEYIFCOL 0x08
#define SAMSUNG_KEYIFROW 0x0c
#define SAMSUNG_KEYIFFC 0x10
/* SAMSUNG_KEYIFCON */
#define SAMSUNG_KEYIFCON_INT_F_EN (1 << 0)
#define SAMSUNG_KEYIFCON_INT_R_EN (1 << 1)
#define SAMSUNG_KEYIFCON_DF_EN (1 << 2)
#define SAMSUNG_KEYIFCON_FC_EN (1 << 3)
#define SAMSUNG_KEYIFCON_WAKEUPEN (1 << 4)
/* SAMSUNG_KEYIFSTSCLR */
#define SAMSUNG_KEYIFSTSCLR_P_INT_MASK (0xff << 0)
#define SAMSUNG_KEYIFSTSCLR_R_INT_MASK (0xff << 8)
#define SAMSUNG_KEYIFSTSCLR_R_INT_OFFSET 8
#define S5PV210_KEYIFSTSCLR_P_INT_MASK (0x3fff << 0)
#define S5PV210_KEYIFSTSCLR_R_INT_MASK (0x3fff << 16)
#define S5PV210_KEYIFSTSCLR_R_INT_OFFSET 16
/* SAMSUNG_KEYIFCOL */
#define SAMSUNG_KEYIFCOL_MASK (0xff << 0)
#define S5PV210_KEYIFCOLEN_MASK (0xff << 8)
/* SAMSUNG_KEYIFROW */
#define SAMSUNG_KEYIFROW_MASK (0xff << 0)
#define S5PV210_KEYIFROW_MASK (0x3fff << 0)
/* SAMSUNG_KEYIFFC */
#define SAMSUNG_KEYIFFC_MASK (0x3ff << 0)
enum samsung_keypad_type {
KEYPAD_TYPE_SAMSUNG,
KEYPAD_TYPE_S5PV210,
};
struct samsung_keypad {
struct input_dev *input_dev;
struct clk *clk;
void __iomem *base;
wait_queue_head_t wait;
bool stopped;
int irq;
unsigned int row_shift;
unsigned int rows;
unsigned int cols;
unsigned int row_state[SAMSUNG_MAX_COLS];
unsigned short keycodes[];
};
static int samsung_keypad_is_s5pv210(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
enum samsung_keypad_type type =
platform_get_device_id(pdev)->driver_data;
return type == KEYPAD_TYPE_S5PV210;
}
static void samsung_keypad_scan(struct samsung_keypad *keypad,
unsigned int *row_state)
{
struct device *dev = keypad->input_dev->dev.parent;
unsigned int col;
unsigned int val;
for (col = 0; col < keypad->cols; col++) {
if (samsung_keypad_is_s5pv210(dev)) {
val = S5PV210_KEYIFCOLEN_MASK;
val &= ~(1 << col) << 8;
} else {
val = SAMSUNG_KEYIFCOL_MASK;
val &= ~(1 << col);
}
writel(val, keypad->base + SAMSUNG_KEYIFCOL);
mdelay(1);
val = readl(keypad->base + SAMSUNG_KEYIFROW);
row_state[col] = ~val & ((1 << keypad->rows) - 1);
}
/* KEYIFCOL reg clear */
writel(0, keypad->base + SAMSUNG_KEYIFCOL);
}
static bool samsung_keypad_report(struct samsung_keypad *keypad,
unsigned int *row_state)
{
struct input_dev *input_dev = keypad->input_dev;
unsigned int changed;
unsigned int pressed;
unsigned int key_down = 0;
unsigned int val;
unsigned int col, row;
for (col = 0; col < keypad->cols; col++) {
changed = row_state[col] ^ keypad->row_state[col];
key_down |= row_state[col];
if (!changed)
continue;
for (row = 0; row < keypad->rows; row++) {
if (!(changed & (1 << row)))
continue;
pressed = row_state[col] & (1 << row);
dev_dbg(&keypad->input_dev->dev,
"key %s, row: %d, col: %d\n",
pressed ? "pressed" : "released", row, col);
val = MATRIX_SCAN_CODE(row, col, keypad->row_shift);
input_event(input_dev, EV_MSC, MSC_SCAN, val);
input_report_key(input_dev,
keypad->keycodes[val], pressed);
}
input_sync(keypad->input_dev);
}
memcpy(keypad->row_state, row_state, sizeof(keypad->row_state));
return key_down;
}
static irqreturn_t samsung_keypad_irq(int irq, void *dev_id)
{
struct samsung_keypad *keypad = dev_id;
unsigned int row_state[SAMSUNG_MAX_COLS];
unsigned int val;
bool key_down;
do {
val = readl(keypad->base + SAMSUNG_KEYIFSTSCLR);
/* Clear interrupt. */
writel(~0x0, keypad->base + SAMSUNG_KEYIFSTSCLR);
samsung_keypad_scan(keypad, row_state);
key_down = samsung_keypad_report(keypad, row_state);
if (key_down)
wait_event_timeout(keypad->wait, keypad->stopped,
msecs_to_jiffies(50));
} while (key_down && !keypad->stopped);
return IRQ_HANDLED;
}
static void samsung_keypad_start(struct samsung_keypad *keypad)
{
unsigned int val;
/* Tell IRQ thread that it may poll the device. */
keypad->stopped = false;
clk_enable(keypad->clk);
/* Enable interrupt bits. */
val = readl(keypad->base + SAMSUNG_KEYIFCON);
val |= SAMSUNG_KEYIFCON_INT_F_EN | SAMSUNG_KEYIFCON_INT_R_EN;
writel(val, keypad->base + SAMSUNG_KEYIFCON);
/* KEYIFCOL reg clear. */
writel(0, keypad->base + SAMSUNG_KEYIFCOL);
}
static void samsung_keypad_stop(struct samsung_keypad *keypad)
{
unsigned int val;
/* Signal IRQ thread to stop polling and disable the handler. */
keypad->stopped = true;
wake_up(&keypad->wait);
disable_irq(keypad->irq);
/* Clear interrupt. */
writel(~0x0, keypad->base + SAMSUNG_KEYIFSTSCLR);
/* Disable interrupt bits. */
val = readl(keypad->base + SAMSUNG_KEYIFCON);
val &= ~(SAMSUNG_KEYIFCON_INT_F_EN | SAMSUNG_KEYIFCON_INT_R_EN);
writel(val, keypad->base + SAMSUNG_KEYIFCON);
clk_disable(keypad->clk);
/*
* Now that chip should not generate interrupts we can safely
* re-enable the handler.
*/
enable_irq(keypad->irq);
}
static int samsung_keypad_open(struct input_dev *input_dev)
{
struct samsung_keypad *keypad = input_get_drvdata(input_dev);
samsung_keypad_start(keypad);
return 0;
}
static void samsung_keypad_close(struct input_dev *input_dev)
{
struct samsung_keypad *keypad = input_get_drvdata(input_dev);
samsung_keypad_stop(keypad);
}
static int __devinit samsung_keypad_probe(struct platform_device *pdev)
{
const struct samsung_keypad_platdata *pdata;
const struct matrix_keymap_data *keymap_data;
struct samsung_keypad *keypad;
struct resource *res;
struct input_dev *input_dev;
unsigned int row_shift;
unsigned int keymap_size;
int error;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data defined\n");
return -EINVAL;
}
keymap_data = pdata->keymap_data;
if (!keymap_data) {
dev_err(&pdev->dev, "no keymap data defined\n");
return -EINVAL;
}
if (!pdata->rows || pdata->rows > SAMSUNG_MAX_ROWS)
return -EINVAL;
if (!pdata->cols || pdata->cols > SAMSUNG_MAX_COLS)
return -EINVAL;
/* initialize the gpio */
if (pdata->cfg_gpio)
pdata->cfg_gpio(pdata->rows, pdata->cols);
row_shift = get_count_order(pdata->cols);
keymap_size = (pdata->rows << row_shift) * sizeof(keypad->keycodes[0]);
keypad = kzalloc(sizeof(*keypad) + keymap_size, GFP_KERNEL);
input_dev = input_allocate_device();
if (!keypad || !input_dev) {
error = -ENOMEM;
goto err_free_mem;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
error = -ENODEV;
goto err_free_mem;
}
keypad->base = ioremap(res->start, resource_size(res));
if (!keypad->base) {
error = -EBUSY;
goto err_free_mem;
}
keypad->clk = clk_get(&pdev->dev, "keypad");
if (IS_ERR(keypad->clk)) {
dev_err(&pdev->dev, "failed to get keypad clk\n");
error = PTR_ERR(keypad->clk);
goto err_unmap_base;
}
keypad->input_dev = input_dev;
keypad->row_shift = row_shift;
keypad->rows = pdata->rows;
keypad->cols = pdata->cols;
init_waitqueue_head(&keypad->wait);
input_dev->name = pdev->name;
input_dev->id.bustype = BUS_HOST;
input_dev->dev.parent = &pdev->dev;
input_set_drvdata(input_dev, keypad);
input_dev->open = samsung_keypad_open;
input_dev->close = samsung_keypad_close;
input_dev->evbit[0] = BIT_MASK(EV_KEY);
if (!pdata->no_autorepeat)
input_dev->evbit[0] |= BIT_MASK(EV_REP);
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
input_dev->keycode = keypad->keycodes;
input_dev->keycodesize = sizeof(keypad->keycodes[0]);
input_dev->keycodemax = pdata->rows << row_shift;
matrix_keypad_build_keymap(keymap_data, row_shift,
input_dev->keycode, input_dev->keybit);
keypad->irq = platform_get_irq(pdev, 0);
if (keypad->irq < 0) {
error = keypad->irq;
goto err_put_clk;
}
error = request_threaded_irq(keypad->irq, NULL, samsung_keypad_irq,
IRQF_ONESHOT, dev_name(&pdev->dev), keypad);
if (error) {
dev_err(&pdev->dev, "failed to register keypad interrupt\n");
goto err_put_clk;
}
error = input_register_device(keypad->input_dev);
if (error)
goto err_free_irq;
device_init_wakeup(&pdev->dev, pdata->wakeup);
platform_set_drvdata(pdev, keypad);
return 0;
err_free_irq:
free_irq(keypad->irq, keypad);
err_put_clk:
clk_put(keypad->clk);
err_unmap_base:
iounmap(keypad->base);
err_free_mem:
input_free_device(input_dev);
kfree(keypad);
return error;
}
static int __devexit samsung_keypad_remove(struct platform_device *pdev)
{
struct samsung_keypad *keypad = platform_get_drvdata(pdev);
device_init_wakeup(&pdev->dev, 0);
platform_set_drvdata(pdev, NULL);
input_unregister_device(keypad->input_dev);
/*
* It is safe to free IRQ after unregistering device because
* samsung_keypad_close will shut off interrupts.
*/
free_irq(keypad->irq, keypad);
clk_put(keypad->clk);
iounmap(keypad->base);
kfree(keypad);
return 0;
}
#ifdef CONFIG_PM
static void samsung_keypad_toggle_wakeup(struct samsung_keypad *keypad,
bool enable)
{
struct device *dev = keypad->input_dev->dev.parent;
unsigned int val;
clk_enable(keypad->clk);
val = readl(keypad->base + SAMSUNG_KEYIFCON);
if (enable) {
val |= SAMSUNG_KEYIFCON_WAKEUPEN;
if (device_may_wakeup(dev))
enable_irq_wake(keypad->irq);
} else {
val &= ~SAMSUNG_KEYIFCON_WAKEUPEN;
if (device_may_wakeup(dev))
disable_irq_wake(keypad->irq);
}
writel(val, keypad->base + SAMSUNG_KEYIFCON);
clk_disable(keypad->clk);
}
static int samsung_keypad_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct samsung_keypad *keypad = platform_get_drvdata(pdev);
struct input_dev *input_dev = keypad->input_dev;
mutex_lock(&input_dev->mutex);
if (input_dev->users)
samsung_keypad_stop(keypad);
samsung_keypad_toggle_wakeup(keypad, true);
mutex_unlock(&input_dev->mutex);
return 0;
}
static int samsung_keypad_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct samsung_keypad *keypad = platform_get_drvdata(pdev);
struct input_dev *input_dev = keypad->input_dev;
mutex_lock(&input_dev->mutex);
samsung_keypad_toggle_wakeup(keypad, false);
if (input_dev->users)
samsung_keypad_start(keypad);
mutex_unlock(&input_dev->mutex);
return 0;
}
static const struct dev_pm_ops samsung_keypad_pm_ops = {
.suspend = samsung_keypad_suspend,
.resume = samsung_keypad_resume,
};
#endif
static struct platform_device_id samsung_keypad_driver_ids[] = {
{
.name = "samsung-keypad",
.driver_data = KEYPAD_TYPE_SAMSUNG,
}, {
.name = "s5pv210-keypad",
.driver_data = KEYPAD_TYPE_S5PV210,
},
{ },
};
MODULE_DEVICE_TABLE(platform, samsung_keypad_driver_ids);
static struct platform_driver samsung_keypad_driver = {
.probe = samsung_keypad_probe,
.remove = __devexit_p(samsung_keypad_remove),
.driver = {
.name = "samsung-keypad",
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &samsung_keypad_pm_ops,
#endif
},
.id_table = samsung_keypad_driver_ids,
};
static int __init samsung_keypad_init(void)
{
return platform_driver_register(&samsung_keypad_driver);
}
module_init(samsung_keypad_init);
static void __exit samsung_keypad_exit(void)
{
platform_driver_unregister(&samsung_keypad_driver);
}
module_exit(samsung_keypad_exit);
MODULE_DESCRIPTION("Samsung keypad driver");
MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:samsung-keypad");
drivers/input/misc/Kconfig
+48
View File
@@ -327,6 +327,17 @@ config INPUT_PCF8574
To compile this driver as a module, choose M here: the
module will be called pcf8574_keypad.
config INPUT_PWM_BEEPER
tristate "PWM beeper support"
depends on HAVE_PWM
help
Say Y here to get support for PWM based beeper devices.
If unsure, say N.
To compile this driver as a module, choose M here: the module will be
called pwm-beeper.
config INPUT_GPIO_ROTARY_ENCODER
tristate "Rotary encoders connected to GPIO pins"
depends on GPIOLIB && GENERIC_GPIO
@@ -390,4 +401,41 @@ config INPUT_PCAP
To compile this driver as a module, choose M here: the
module will be called pcap_keys.
config INPUT_ADXL34X
tristate "Analog Devices ADXL34x Three-Axis Digital Accelerometer"
default n
help
Say Y here if you have a Accelerometer interface using the
ADXL345/6 controller, and your board-specific initialization
code includes that in its table of devices.
This driver can use either I2C or SPI communication to the
ADXL345/6 controller. Select the appropriate method for
your system.
If unsure, say N (but it's safe to say "Y").
To compile this driver as a module, choose M here: the
module will be called adxl34x.
config INPUT_ADXL34X_I2C
tristate "support I2C bus connection"
depends on INPUT_ADXL34X && I2C
default y
help
Say Y here if you have ADXL345/6 hooked to an I2C bus.
To compile this driver as a module, choose M here: the
module will be called adxl34x-i2c.
config INPUT_ADXL34X_SPI
tristate "support SPI bus connection"
depends on INPUT_ADXL34X && SPI
default y
help
Say Y here if you have ADXL345/6 hooked to a SPI bus.
To compile this driver as a module, choose M here: the
module will be called adxl34x-spi.
endif
drivers/input/misc/Makefile
+4
View File
@@ -8,6 +8,9 @@ obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o
obj-$(CONFIG_INPUT_AD714X) += ad714x.o
obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o
obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o
obj-$(CONFIG_INPUT_ADXL34X) += adxl34x.o
obj-$(CONFIG_INPUT_ADXL34X_I2C) += adxl34x-i2c.o
obj-$(CONFIG_INPUT_ADXL34X_SPI) += adxl34x-spi.o
obj-$(CONFIG_INPUT_APANEL) += apanel.o
obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o
obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
@@ -26,6 +29,7 @@ obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
obj-$(CONFIG_INPUT_PCF8574) += pcf8574_keypad.o
obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
obj-$(CONFIG_INPUT_PWM_BEEPER) += pwm-beeper.o
obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o

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