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-rw-r--r--drivers/char/keyboard.c9
-rw-r--r--drivers/input/Kconfig14
-rw-r--r--drivers/input/Makefile6
-rw-r--r--drivers/input/evbug.c11
-rw-r--r--drivers/input/evdev.c42
-rw-r--r--drivers/input/ff-core.c367
-rw-r--r--drivers/input/ff-memless.c515
-rw-r--r--drivers/input/fixp-arith.h (renamed from drivers/usb/input/fixp-arith.h)0
-rw-r--r--drivers/input/input.c46
-rw-r--r--drivers/input/joydev.c12
-rw-r--r--drivers/input/joystick/iforce/iforce-ff.c118
-rw-r--r--drivers/input/joystick/iforce/iforce-main.c226
-rw-r--r--drivers/input/joystick/iforce/iforce-packets.c15
-rw-r--r--drivers/input/joystick/iforce/iforce.h26
-rw-r--r--drivers/input/keyboard/atkbd.c4
-rw-r--r--drivers/input/misc/uinput.c67
-rw-r--r--drivers/input/mouse/alps.c8
-rw-r--r--drivers/input/mouse/alps.h2
-rw-r--r--drivers/input/mouse/lifebook.c8
-rw-r--r--drivers/input/mouse/logips2pp.c23
-rw-r--r--drivers/input/mouse/psmouse-base.c42
-rw-r--r--drivers/input/mouse/sermouse.c2
-rw-r--r--drivers/input/mouse/synaptics.c10
-rw-r--r--drivers/input/mousedev.c28
-rw-r--r--drivers/input/power.c7
-rw-r--r--drivers/input/serio/i8042-x86ia64io.h14
-rw-r--r--drivers/input/serio/i8042.c741
-rw-r--r--drivers/input/serio/i8042.h9
-rw-r--r--drivers/input/serio/libps2.c36
-rw-r--r--drivers/input/touchscreen/Kconfig36
-rw-r--r--drivers/input/touchscreen/Makefile3
-rw-r--r--drivers/input/touchscreen/elo.c167
-rw-r--r--drivers/input/touchscreen/penmount.c185
-rw-r--r--drivers/input/touchscreen/touchright.c196
-rw-r--r--drivers/input/touchscreen/touchwin.c203
-rw-r--r--drivers/input/tsdev.c12
-rw-r--r--drivers/usb/input/Kconfig18
-rw-r--r--drivers/usb/input/Makefile5
-rw-r--r--drivers/usb/input/hid-core.c5
-rw-r--r--drivers/usb/input/hid-ff.c49
-rw-r--r--drivers/usb/input/hid-input.c23
-rw-r--r--drivers/usb/input/hid-lgff.c523
-rw-r--r--drivers/usb/input/hid-pidff.c1330
-rw-r--r--drivers/usb/input/hid-tmff.c399
-rw-r--r--drivers/usb/input/hid-zpff.c110
-rw-r--r--drivers/usb/input/hid.h32
-rw-r--r--drivers/usb/input/pid.c295
-rw-r--r--drivers/usb/input/pid.h62
48 files changed, 4030 insertions, 2031 deletions
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 3e90aac3751..ca234ce8004 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -1285,7 +1285,7 @@ static void kbd_event(struct input_handle *handle, unsigned int event_type,
*/
static struct input_handle *kbd_connect(struct input_handler *handler,
struct input_dev *dev,
- struct input_device_id *id)
+ const struct input_device_id *id)
{
struct input_handle *handle;
int i;
@@ -1334,7 +1334,7 @@ static void kbd_start(struct input_handle *handle)
tasklet_enable(&keyboard_tasklet);
}
-static struct input_device_id kbd_ids[] = {
+static const struct input_device_id kbd_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
.evbit = { BIT(EV_KEY) },
@@ -1362,6 +1362,7 @@ static struct input_handler kbd_handler = {
int __init kbd_init(void)
{
int i;
+ int error;
for (i = 0; i < MAX_NR_CONSOLES; i++) {
kbd_table[i].ledflagstate = KBD_DEFLEDS;
@@ -1373,7 +1374,9 @@ int __init kbd_init(void)
kbd_table[i].kbdmode = VC_XLATE;
}
- input_register_handler(&kbd_handler);
+ error = input_register_handler(&kbd_handler);
+ if (error)
+ return error;
tasklet_enable(&keyboard_tasklet);
tasklet_schedule(&keyboard_tasklet);
diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 58223b5d842..96232313b1b 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -24,6 +24,20 @@ config INPUT
if INPUT
+config INPUT_FF_MEMLESS
+ tristate "Support for memoryless force-feedback devices"
+ default n
+ ---help---
+ Say Y here if you have memoryless force-feedback input device
+ such as Logitech WingMan Force 3D, ThrustMaster FireStorm Dual
+ Power 2, or similar. You will also need to enable hardware-specific
+ driver.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ff-memless.
+
comment "Userland interfaces"
config INPUT_MOUSEDEV
diff --git a/drivers/input/Makefile b/drivers/input/Makefile
index 1a6ff4982f3..a005b1df5f1 100644
--- a/drivers/input/Makefile
+++ b/drivers/input/Makefile
@@ -4,7 +4,11 @@
# Each configuration option enables a list of files.
-obj-$(CONFIG_INPUT) += input.o
+obj-$(CONFIG_INPUT) += input-core.o
+input-core-objs := input.o ff-core.o
+
+obj-$(CONFIG_INPUT_FF_MEMLESS) += ff-memless.o
+
obj-$(CONFIG_INPUT_MOUSEDEV) += mousedev.o
obj-$(CONFIG_INPUT_JOYDEV) += joydev.o
obj-$(CONFIG_INPUT_EVDEV) += evdev.o
diff --git a/drivers/input/evbug.c b/drivers/input/evbug.c
index 07358fb51b8..5a9653c3128 100644
--- a/drivers/input/evbug.c
+++ b/drivers/input/evbug.c
@@ -42,10 +42,12 @@ static char evbug_name[] = "evbug";
static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
{
- printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", handle->dev->phys, type, code, value);
+ printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
+ handle->dev->phys, type, code, value);
}
-static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct input_handle *handle;
@@ -72,7 +74,7 @@ static void evbug_disconnect(struct input_handle *handle)
kfree(handle);
}
-static struct input_device_id evbug_ids[] = {
+static const struct input_device_id evbug_ids[] = {
{ .driver_info = 1 }, /* Matches all devices */
{ }, /* Terminating zero entry */
};
@@ -89,8 +91,7 @@ static struct input_handler evbug_handler = {
static int __init evbug_init(void)
{
- input_register_handler(&evbug_handler);
- return 0;
+ return input_register_handler(&evbug_handler);
}
static void __exit evbug_exit(void)
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 4bf48188cc9..6439f378f6c 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -391,8 +391,10 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
struct evdev *evdev = list->evdev;
struct input_dev *dev = evdev->handle.dev;
struct input_absinfo abs;
+ struct ff_effect effect;
int __user *ip = (int __user *)p;
int i, t, u, v;
+ int error;
if (!evdev->exist)
return -ENODEV;
@@ -460,27 +462,22 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
return 0;
case EVIOCSFF:
- if (dev->upload_effect) {
- struct ff_effect effect;
- int err;
-
- if (copy_from_user(&effect, p, sizeof(effect)))
- return -EFAULT;
- err = dev->upload_effect(dev, &effect);
- if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
- return -EFAULT;
- return err;
- } else
- return -ENOSYS;
+ if (copy_from_user(&effect, p, sizeof(effect)))
+ return -EFAULT;
- case EVIOCRMFF:
- if (!dev->erase_effect)
- return -ENOSYS;
+ error = input_ff_upload(dev, &effect, file);
- return dev->erase_effect(dev, (int)(unsigned long) p);
+ if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
+ return -EFAULT;
+
+ return error;
+
+ case EVIOCRMFF:
+ return input_ff_erase(dev, (int)(unsigned long) p, file);
case EVIOCGEFFECTS:
- if (put_user(dev->ff_effects_max, ip))
+ i = test_bit(EV_FF, dev->evbit) ? dev->ff->max_effects : 0;
+ if (put_user(i, ip))
return -EFAULT;
return 0;
@@ -604,7 +601,7 @@ static long evdev_ioctl_compat(struct file *file, unsigned int cmd, unsigned lon
}
#endif
-static struct file_operations evdev_fops = {
+static const struct file_operations evdev_fops = {
.owner = THIS_MODULE,
.read = evdev_read,
.write = evdev_write,
@@ -619,7 +616,8 @@ static struct file_operations evdev_fops = {
.flush = evdev_flush
};
-static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct evdev *evdev;
struct class_device *cdev;
@@ -669,6 +667,7 @@ static void evdev_disconnect(struct input_handle *handle)
evdev->exist = 0;
if (evdev->open) {
+ input_flush_device(handle, NULL);
input_close_device(handle);
wake_up_interruptible(&evdev->wait);
list_for_each_entry(list, &evdev->list, node)
@@ -677,7 +676,7 @@ static void evdev_disconnect(struct input_handle *handle)
evdev_free(evdev);
}
-static struct input_device_id evdev_ids[] = {
+static const struct input_device_id evdev_ids[] = {
{ .driver_info = 1 }, /* Matches all devices */
{ }, /* Terminating zero entry */
};
@@ -696,8 +695,7 @@ static struct input_handler evdev_handler = {
static int __init evdev_init(void)
{
- input_register_handler(&evdev_handler);
- return 0;
+ return input_register_handler(&evdev_handler);
}
static void __exit evdev_exit(void)
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
new file mode 100644
index 00000000000..35656cadc91
--- /dev/null
+++ b/drivers/input/ff-core.c
@@ -0,0 +1,367 @@
+/*
+ * Force feedback support for Linux input subsystem
+ *
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ * Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("ff-core: " format "\n", ## arg)
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+
+/*
+ * Check that the effect_id is a valid effect and whether the user
+ * is the owner
+ */
+static int check_effect_access(struct ff_device *ff, int effect_id,
+ struct file *file)
+{
+ if (effect_id < 0 || effect_id >= ff->max_effects ||
+ !ff->effect_owners[effect_id])
+ return -EINVAL;
+
+ if (file && ff->effect_owners[effect_id] != file)
+ return -EACCES;
+
+ return 0;
+}
+
+/*
+ * Checks whether 2 effects can be combined together
+ */
+static inline int check_effects_compatible(struct ff_effect *e1,
+ struct ff_effect *e2)
+{
+ return e1->type == e2->type &&
+ (e1->type != FF_PERIODIC ||
+ e1->u.periodic.waveform == e2->u.periodic.waveform);
+}
+
+/*
+ * Convert an effect into compatible one
+ */
+static int compat_effect(struct ff_device *ff, struct ff_effect *effect)
+{
+ int magnitude;
+
+ switch (effect->type) {
+ case FF_RUMBLE:
+ if (!test_bit(FF_PERIODIC, ff->ffbit))
+ return -EINVAL;
+
+ /*
+ * calculate manginude of sine wave as average of rumble's
+ * 2/3 of strong magnitude and 1/3 of weak magnitude
+ */
+ magnitude = effect->u.rumble.strong_magnitude / 3 +
+ effect->u.rumble.weak_magnitude / 6;
+
+ effect->type = FF_PERIODIC;
+ effect->u.periodic.waveform = FF_SINE;
+ effect->u.periodic.period = 50;
+ effect->u.periodic.magnitude = max(magnitude, 0x7fff);
+ effect->u.periodic.offset = 0;
+ effect->u.periodic.phase = 0;
+ effect->u.periodic.envelope.attack_length = 0;
+ effect->u.periodic.envelope.attack_level = 0;
+ effect->u.periodic.envelope.fade_length = 0;
+ effect->u.periodic.envelope.fade_level = 0;
+
+ return 0;
+
+ default:
+ /* Let driver handle conversion */
+ return 0;
+ }
+}
+
+/**
+ * input_ff_upload() - upload effect into force-feedback device
+ * @dev: input device
+ * @effect: effect to be uploaded
+ * @file: owner of the effect
+ */
+int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,
+ struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ struct ff_effect *old;
+ int ret = 0;
+ int id;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ if (effect->type < FF_EFFECT_MIN || effect->type > FF_EFFECT_MAX ||
+ !test_bit(effect->type, dev->ffbit)) {
+ debug("invalid or not supported effect type in upload");
+ return -EINVAL;
+ }
+
+ if (effect->type == FF_PERIODIC &&
+ (effect->u.periodic.waveform < FF_WAVEFORM_MIN ||
+ effect->u.periodic.waveform > FF_WAVEFORM_MAX ||
+ !test_bit(effect->u.periodic.waveform, dev->ffbit))) {
+ debug("invalid or not supported wave form in upload");
+ return -EINVAL;
+ }
+
+ if (!test_bit(effect->type, ff->ffbit)) {
+ ret = compat_effect(ff, effect);
+ if (ret)
+ return ret;
+ }
+
+ mutex_lock(&ff->mutex);
+
+ if (effect->id == -1) {
+ for (id = 0; id < ff->max_effects; id++)
+ if (!ff->effect_owners[id])
+ break;
+
+ if (id >= ff->max_effects) {
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ effect->id = id;
+ old = NULL;
+
+ } else {
+ id = effect->id;
+
+ ret = check_effect_access(ff, id, file);
+ if (ret)
+ goto out;
+
+ old = &ff->effects[id];
+
+ if (!check_effects_compatible(effect, old)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+
+ ret = ff->upload(dev, effect, old);
+ if (ret)
+ goto out;
+
+ ff->effects[id] = *effect;
+ ff->effect_owners[id] = file;
+
+ out:
+ mutex_unlock(&ff->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(input_ff_upload);
+
+/*
+ * Erases the effect if the requester is also the effect owner. The mutex
+ * should already be locked before calling this function.
+ */
+static int erase_effect(struct input_dev *dev, int effect_id,
+ struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int error;
+
+ error = check_effect_access(ff, effect_id, file);
+ if (error)
+ return error;
+
+ ff->playback(dev, effect_id, 0);
+
+ if (ff->erase) {
+ error = ff->erase(dev, effect_id);
+ if (error)
+ return error;
+ }
+
+ ff->effect_owners[effect_id] = NULL;
+
+ return 0;
+}
+
+/**
+ * input_ff_erase - erase an effect from device
+ * @dev: input device to erase effect from
+ * @effect_id: id of the ffect to be erased
+ * @file: purported owner of the request
+ *
+ * This function erases a force-feedback effect from specified device.
+ * The effect will only be erased if it was uploaded through the same
+ * file handle that is requesting erase.
+ */
+int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int ret;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ mutex_lock(&ff->mutex);
+ ret = erase_effect(dev, effect_id, file);
+ mutex_unlock(&ff->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(input_ff_erase);
+
+/*
+ * flush_effects - erase all effects owned by a file handle
+ */
+static int flush_effects(struct input_dev *dev, struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int i;
+
+ debug("flushing now");
+
+ mutex_lock(&ff->mutex);
+
+ for (i = 0; i < ff->max_effects; i++)
+ erase_effect(dev, i, file);
+
+ mutex_unlock(&ff->mutex);
+
+ return 0;
+}
+
+/**
+ * input_ff_event() - generic handler for force-feedback events
+ * @dev: input device to send the effect to
+ * @type: event type (anything but EV_FF is ignored)
+ * @code: event code
+ * @value: event value
+ */
+int input_ff_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+ struct ff_device *ff = dev->ff;
+
+ if (type != EV_FF)
+ return 0;
+
+ mutex_lock(&ff->mutex);
+
+ switch (code) {
+ case FF_GAIN:
+ if (!test_bit(FF_GAIN, dev->ffbit) || value > 0xffff)
+ break;
+
+ ff->set_gain(dev, value);
+ break;
+
+ case FF_AUTOCENTER:
+ if (!test_bit(FF_AUTOCENTER, dev->ffbit) || value > 0xffff)
+ break;
+
+ ff->set_autocenter(dev, value);
+ break;
+
+ default:
+ ff->playback(dev, code, value);
+ break;
+ }
+
+ mutex_unlock(&ff->mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_event);
+
+/**
+ * input_ff_create() - create force-feedback device
+ * @dev: input device supporting force-feedback
+ * @max_effects: maximum number of effects supported by the device
+ *
+ * This function allocates all necessary memory for a force feedback
+ * portion of an input device and installs all default handlers.
+ * @dev->ffbit should be already set up before calling this function.
+ * Once ff device is created you need to setup its upload, erase,
+ * playback and other handlers before registering input device
+ */
+int input_ff_create(struct input_dev *dev, int max_effects)
+{
+ struct ff_device *ff;
+ int i;
+
+ if (!max_effects) {
+ printk(KERN_ERR
+ "ff-core: cannot allocate device without any effects\n");
+ return -EINVAL;
+ }
+
+ ff = kzalloc(sizeof(struct ff_device) +
+ max_effects * sizeof(struct file *), GFP_KERNEL);
+ if (!ff)
+ return -ENOMEM;
+
+ ff->effects = kcalloc(max_effects, sizeof(struct ff_effect),
+ GFP_KERNEL);
+ if (!ff->effects) {
+ kfree(ff);
+ return -ENOMEM;
+ }
+
+ ff->max_effects = max_effects;
+ mutex_init(&ff->mutex);
+
+ dev->ff = ff;
+ dev->flush = flush_effects;
+ dev->event = input_ff_event;
+ set_bit(EV_FF, dev->evbit);
+
+ /* Copy "true" bits into ff device bitmap */
+ for (i = 0; i <= FF_MAX; i++)
+ if (test_bit(i, dev->ffbit))
+ set_bit(i, ff->ffbit);
+
+ /* we can emulate RUMBLE with periodic effects */
+ if (test_bit(FF_PERIODIC, ff->ffbit))
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_create);
+
+/**
+ * input_ff_free() - frees force feedback portion of input device
+ * @dev: input device supporintg force feedback
+ *
+ * This function is only needed in error path as input core will
+ * automatically free force feedback structures when device is
+ * destroyed.
+ */
+void input_ff_destroy(struct input_dev *dev)
+{
+ clear_bit(EV_FF, dev->evbit);
+ if (dev->ff) {
+ if (dev->ff->destroy)
+ dev->ff->destroy(dev->ff);
+ kfree(dev->ff->private);
+ kfree(dev->ff);
+ dev->ff = NULL;
+ }
+}
+EXPORT_SYMBOL_GPL(input_ff_destroy);
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
new file mode 100644
index 00000000000..cd8b7297e6d
--- /dev/null
+++ b/drivers/input/ff-memless.c
@@ -0,0 +1,515 @@
+/*
+ * Force feedback support for memoryless devices
+ *
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ * Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("ff-memless: " format "\n", ## arg)
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+
+#include "fixp-arith.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Anssi Hannula <anssi.hannula@gmail.com>");
+MODULE_DESCRIPTION("Force feedback support for memoryless devices");
+
+/* Number of effects handled with memoryless devices */
+#define FF_MEMLESS_EFFECTS 16
+
+/* Envelope update interval in ms */
+#define FF_ENVELOPE_INTERVAL 50
+
+#define FF_EFFECT_STARTED 0
+#define FF_EFFECT_PLAYING 1
+#define FF_EFFECT_ABORTING 2
+
+struct ml_effect_state {
+ struct ff_effect *effect;
+ unsigned long flags; /* effect state (STARTED, PLAYING, etc) */
+ int count; /* loop count of the effect */
+ unsigned long play_at; /* start time */
+ unsigned long stop_at; /* stop time */
+ unsigned long adj_at; /* last time the effect was sent */
+};
+
+struct ml_device {
+ void *private;
+ struct ml_effect_state states[FF_MEMLESS_EFFECTS];
+ int gain;
+ struct timer_list timer;
+ spinlock_t timer_lock;
+ struct input_dev *dev;
+
+ int (*play_effect)(struct input_dev *dev, void *data,
+ struct ff_effect *effect);
+};
+
+static const struct ff_envelope *get_envelope(const struct ff_effect *effect)
+{
+ static const struct ff_envelope empty_envelope;
+
+ switch (effect->type) {
+ case FF_PERIODIC:
+ return &effect->u.periodic.envelope;
+ case FF_CONSTANT:
+ return &effect->u.constant.envelope;
+ default:
+ return &empty_envelope;
+ }
+}
+
+/*
+ * Check for the next time envelope requires an update on memoryless devices
+ */
+static unsigned long calculate_next_time(struct ml_effect_state *state)
+{
+ const struct ff_envelope *envelope = get_envelope(state->effect);
+ unsigned long attack_stop, fade_start, next_fade;
+
+ if (envelope->attack_length) {
+ attack_stop = state->play_at +
+ msecs_to_jiffies(envelope->attack_length);
+ if (time_before(state->adj_at, attack_stop))
+ return state->adj_at +
+ msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
+ }
+
+ if (state->effect->replay.length) {
+ if (envelope->fade_length) {
+ /* check when fading should start */
+ fade_start = state->stop_at -
+ msecs_to_jiffies(envelope->fade_length);
+
+ if (time_before(state->adj_at, fade_start))
+ return fade_start;
+
+ /* already fading, advance to next checkpoint */
+ next_fade = state->adj_at +
+ msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
+ if (time_before(next_fade, state->stop_at))
+ return next_fade;
+ }
+
+ return state->stop_at;
+ }
+
+ return state->play_at;
+}
+
+static void ml_schedule_timer(struct ml_device *ml)
+{
+ struct ml_effect_state *state;
+ unsigned long now = jiffies;
+ unsigned long earliest = 0;
+ unsigned long next_at;
+ int events = 0;
+ int i;
+
+ debug("calculating next timer");
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
+
+ state = &ml->states[i];
+
+ if (!test_bit(FF_EFFECT_STARTED, &state->flags))
+ continue;
+
+ if (test_bit(FF_EFFECT_PLAYING, &state->flags))
+ next_at = calculate_next_time(state);
+ else
+ next_at = state->play_at;
+
+ if (time_before_eq(now, next_at) &&
+ (++events == 1 || time_before(next_at, earliest)))
+ earliest = next_at;
+ }
+
+ if (!events) {
+ debug("no actions");
+ del_timer(&ml->timer);
+ } else {
+ debug("timer set");
+ mod_timer(&ml->timer, earliest);
+ }
+}
+
+/*
+ * Apply an envelope to a value
+ */
+static int apply_envelope(struct ml_effect_state *state, int value,
+ struct ff_envelope *envelope)
+{
+ struct ff_effect *effect = state->effect;
+ unsigned long now = jiffies;
+ int time_from_level;
+ int time_of_envelope;
+ int envelope_level;
+ int difference;
+
+ if (envelope->attack_length &&
+ time_before(now,
+ state->play_at + msecs_to_jiffies(envelope->attack_length))) {
+ debug("value = 0x%x, attack_level = 0x%x", value,
+ envelope->attack_level);
+ time_from_level = jiffies_to_msecs(now - state->play_at);
+ time_of_envelope = envelope->attack_length;
+ envelope_level = min_t(__s16, envelope->attack_level, 0x7fff);
+
+ } else if (envelope->fade_length && effect->replay.length &&
+ time_after(now,
+ state->stop_at - msecs_to_jiffies(envelope->fade_length)) &&
+ time_before(now, state->stop_at)) {
+ time_from_level = jiffies_to_msecs(state->stop_at - now);
+ time_of_envelope = envelope->fade_length;
+ envelope_level = min_t(__s16, envelope->fade_level, 0x7fff);
+ } else
+ return value;
+
+ difference = abs(value) - envelope_level;
+
+ debug("difference = %d", difference);
+ debug("time_from_level = 0x%x", time_from_level);
+ debug("time_of_envelope = 0x%x", time_of_envelope);
+
+ difference = difference * time_from_level / time_of_envelope;
+
+ debug("difference = %d", difference);
+
+ return value < 0 ?
+ -(difference + envelope_level) : (difference + envelope_level);
+}
+
+/*
+ * Return the type the effect has to be converted into (memless devices)
+ */
+static int get_compatible_type(struct ff_device *ff, int effect_type)
+{
+
+ if (test_bit(effect_type, ff->ffbit))
+ return effect_type;
+
+ if (effect_type == FF_PERIODIC && test_bit(FF_RUMBLE, ff->ffbit))
+ return FF_RUMBLE;
+
+ printk(KERN_ERR
+ "ff-memless: invalid type in get_compatible_type()\n");
+
+ return 0;
+}
+
+/*
+ * Combine two effects and apply gain.
+ */
+static void ml_combine_effects(struct ff_effect *effect,
+ struct ml_effect_state *state,
+ int gain)
+{
+ struct ff_effect *new = state->effect;
+ unsigned int strong, weak, i;
+ int x, y;
+ fixp_t level;
+
+ switch (new->type) {
+ case FF_CONSTANT:
+ i = new->direction * 360 / 0xffff;
+ level = fixp_new16(apply_envelope(state,
+ new->u.constant.level,
+ &new->u.constant.envelope));
+ x = fixp_mult(fixp_sin(i), level) * gain / 0xffff;
+ y = fixp_mult(-fixp_cos(i), level) * gain / 0xffff;
+ /*
+ * here we abuse ff_ramp to hold x and y of constant force
+ * If in future any driver wants something else than x and y
+ * in s8, this should be changed to something more generic
+ */
+ effect->u.ramp.start_level =
+ max(min(effect->u.ramp.start_level + x, 0x7f), -0x80);
+ effect->u.ramp.end_level =
+ max(min(effect->u.ramp.end_level + y, 0x7f), -0x80);
+ break;
+
+ case FF_RUMBLE:
+ strong = new->u.rumble.strong_magnitude * gain / 0xffff;
+ weak = new->u.rumble.weak_magnitude * gain / 0xffff;
+ effect->u.rumble.strong_magnitude =
+ min(strong + effect->u.rumble.strong_magnitude,
+ 0xffffU);
+ effect->u.rumble.weak_magnitude =
+ min(weak + effect->u.rumble.weak_magnitude, 0xffffU);
+ break;
+
+ case FF_PERIODIC:
+ i = apply_envelope(state, abs(new->u.periodic.magnitude),
+ &new->u.periodic.envelope);
+
+ /* here we also scale it 0x7fff => 0xffff */
+ i = i * gain / 0x7fff;
+
+ effect->u.rumble.strong_magnitude =
+ min(i + effect->u.rumble.strong_magnitude, 0xffffU);
+ effect->u.rumble.weak_magnitude =
+ min(i + effect->u.rumble.weak_magnitude, 0xffffU);
+ break;
+
+ default:
+ printk(KERN_ERR "ff-memless: invalid type in ml_combine_effects()\n");
+ break;
+ }
+
+}
+
+
+/*
+ * Because memoryless devices have only one effect per effect type active
+ * at one time we have to combine multiple effects into one
+ */
+static int ml_get_combo_effect(struct ml_device *ml,
+ unsigned long *effect_handled,
+ struct ff_effect *combo_effect)
+{
+ struct ff_effect *effect;
+ struct ml_effect_state *state;
+ int effect_type;
+ int i;
+
+ memset(combo_effect, 0, sizeof(struct ff_effect));
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
+ if (__test_and_set_bit(i, effect_handled))
+ continue;
+
+ state = &ml->states[i];
+ effect = state->effect;
+
+ if (!test_bit(FF_EFFECT_STARTED, &state->flags))
+ continue;
+
+ if (time_before(jiffies, state->play_at))
+ continue;
+
+ /*
+ * here we have started effects that are either
+ * currently playing (and may need be aborted)
+ * or need to start playing.
+ */
+ effect_type = get_compatible_type(ml->dev->ff, effect->type);
+ if (combo_effect->type != effect_type) {
+ if (combo_effect->type != 0) {
+ __clear_bit(i, effect_handled);
+ continue;
+ }
+ combo_effect->type = effect_type;
+ }
+
+ if (__test_and_clear_bit(FF_EFFECT_ABORTING, &state->flags)) {
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+ } else if (effect->replay.length &&
+ time_after_eq(jiffies, state->stop_at)) {
+
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+
+ if (--state->count <= 0) {
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+ } else {
+ state->play_at = jiffies +
+ msecs_to_jiffies(effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(effect->replay.length);
+ }
+ } else {
+ __set_bit(FF_EFFECT_PLAYING, &state->flags);
+ state->adj_at = jiffies;
+ ml_combine_effects(combo_effect, state, ml->gain);
+ }
+ }
+
+ return combo_effect->type != 0;
+}
+
+static void ml_play_effects(struct ml_device *ml)
+{
+ struct ff_effect effect;
+ DECLARE_BITMAP(handled_bm, FF_MEMLESS_EFFECTS);
+
+ memset(handled_bm, 0, sizeof(handled_bm));
+
+ while (ml_get_combo_effect(ml, handled_bm, &effect))
+ ml->play_effect(ml->dev, ml->private, &effect);
+
+ ml_schedule_timer(ml);
+}
+
+static void ml_effect_timer(unsigned long timer_data)
+{
+ struct input_dev *dev = (struct input_dev *)timer_data;
+ struct ml_device *ml = dev->ff->private;
+
+ debug("timer: updating effects");
+
+ spin_lock(&ml->timer_lock);
+ ml_play_effects(ml);
+ spin_unlock(&ml->timer_lock);
+}
+
+static void ml_ff_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct ml_device *ml = dev->ff->private;
+ int i;
+
+ spin_lock_bh(&ml->timer_lock);
+
+ ml->gain = gain;
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
+ __clear_bit(FF_EFFECT_PLAYING, &ml->states[i].flags);
+
+ ml_play_effects(ml);
+
+ spin_unlock_bh(&ml->timer_lock);
+}
+
+static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
+{
+ struct ml_device *ml = dev->ff->private;
+ struct ml_effect_state *state = &ml->states[effect_id];
+
+ spin_lock_bh(&ml->timer_lock);
+
+ if (value > 0) {
+ debug("initiated play");
+
+ __set_bit(FF_EFFECT_STARTED, &state->flags);
+ state->count = value;
+ state->play_at = jiffies +
+ msecs_to_jiffies(state->effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(state->effect->replay.length);
+ state->adj_at = state->play_at;
+
+ ml_schedule_timer(ml);
+
+ } else {
+ debug("initiated stop");
+
+ if (test_bit(FF_EFFECT_PLAYING, &state->flags))
+ __set_bit(FF_EFFECT_ABORTING, &state->flags);
+ else
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+
+ ml_play_effects(ml);
+ }
+
+ spin_unlock_bh(&ml->timer_lock);
+
+ return 0;
+}
+
+static int ml_ff_upload(struct input_dev *dev,
+ struct ff_effect *effect, struct ff_effect *old)
+{
+ struct ml_device *ml = dev->ff->private;
+ struct ml_effect_state *state = &ml->states[effect->id];
+
+ spin_lock_bh(&ml->timer_lock);
+
+ if (test_bit(FF_EFFECT_STARTED, &state->flags)) {
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+ state->play_at = jiffies +
+ msecs_to_jiffies(state->effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(state->effect->replay.length);
+ state->adj_at = state->play_at;
+ ml_schedule_timer(ml);
+ }
+
+ spin_unlock_bh(&ml->timer_lock);
+
+ return 0;
+}
+
+static void ml_ff_destroy(struct ff_device *ff)
+{
+ struct ml_device *ml = ff->private;
+
+ kfree(ml->private);
+}
+
+/**
+ * input_ff_create_memless() - create memoryless FF device
+ * @dev: input device supporting force-feedback
+ * @data: driver-specific data to be passed into @play_effect
+ * @play_effect: driver-specific method for playing FF effect
+ */
+int input_ff_create_memless(struct input_dev *dev, void *data,
+ int (*play_effect)(struct input_dev *, void *, struct ff_effect *))
+{
+ struct ml_device *ml;
+ struct ff_device *ff;
+ int error;
+ int i;
+
+ ml = kzalloc(sizeof(struct ml_device), GFP_KERNEL);
+ if (!ml)
+ return -ENOMEM;
+
+ ml->dev = dev;
+ ml->private = data;
+ ml->play_effect = play_effect;
+ ml->gain = 0xffff;
+ spin_lock_init(&ml->timer_lock);
+ setup_timer(&ml->timer, ml_effect_timer, (unsigned long)dev);
+
+ set_bit(FF_GAIN, dev->ffbit);
+
+ error = input_ff_create(dev, FF_MEMLESS_EFFECTS);
+ if (error) {
+ kfree(ml);
+ return error;
+ }
+
+ ff = dev->ff;
+ ff->private = ml;
+ ff->upload = ml_ff_upload;
+ ff->playback = ml_ff_playback;
+ ff->set_gain = ml_ff_set_gain;
+ ff->destroy = ml_ff_destroy;
+
+ /* we can emulate periodic effects with RUMBLE */
+ if (test_bit(FF_RUMBLE, ff->ffbit)) {
+ set_bit(FF_PERIODIC, dev->ffbit);
+ set_bit(FF_SINE, dev->ffbit);
+ set_bit(FF_TRIANGLE, dev->ffbit);
+ set_bit(FF_SQUARE, dev->ffbit);
+ }
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
+ ml->states[i].effect = &ff->effects[i];
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_create_memless);
diff --git a/drivers/usb/input/fixp-arith.h b/drivers/input/fixp-arith.h
index ed3d2da0c48..ed3d2da0c48 100644
--- a/drivers/usb/input/fixp-arith.h
+++ b/drivers/input/fixp-arith.h
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 9cb4b9a54f0..1c8c8a5bc4a 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -176,6 +176,10 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in
break;
case EV_FF:
+
+ if (value < 0)
+ return;
+
if (dev->event)
dev->event(dev, type, code, value);
break;
@@ -309,7 +313,8 @@ static void input_link_handle(struct input_handle *handle)
if (i != NBITS(max)) \
continue;
-static struct input_device_id *input_match_device(struct input_device_id *id, struct input_dev *dev)
+static const struct input_device_id *input_match_device(const struct input_device_id *id,
+ struct input_dev *dev)
{
int i;
@@ -762,7 +767,9 @@ static void input_dev_release(struct class_device *class_dev)
{
struct input_dev *dev = to_input_dev(class_dev);
+ input_ff_destroy(dev);
kfree(dev);
+
module_put(THIS_MODULE);
}
@@ -899,12 +906,13 @@ struct input_dev *input_allocate_device(void)
dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
if (dev) {
- dev->dynalloc = 1;
dev->cdev.class = &input_class;
class_device_initialize(&dev->cdev);
mutex_init(&dev->mutex);
INIT_LIST_HEAD(&dev->h_list);
INIT_LIST_HEAD(&dev->node);
+
+ __module_get(THIS_MODULE);
}
return dev;
@@ -929,17 +937,10 @@ int input_register_device(struct input_dev *dev)
static atomic_t input_no = ATOMIC_INIT(0);
struct input_handle *handle;
struct input_handler *handler;
- struct input_device_id *id;
+ const struct input_device_id *id;
const char *path;
int error;
- if (!dev->dynalloc) {
- printk(KERN_WARNING "input: device %s is statically allocated, will not register\n"
- "Please convert to input_allocate_device() or contact dtor_core@ameritech.net\n",
- dev->name ? dev->name : "<Unknown>");
- return -EINVAL;
- }
-
set_bit(EV_SYN, dev->evbit);
/*
@@ -955,10 +956,8 @@ int input_register_device(struct input_dev *dev)
dev->rep[REP_PERIOD] = 33;
}
- INIT_LIST_HEAD(&dev->h_list);
list_add_tail(&dev->node, &input_dev_list);
- dev->cdev.class = &input_class;
snprintf(dev->cdev.class_id, sizeof(dev->cdev.class_id),
"input%ld", (unsigned long) atomic_inc_return(&input_no) - 1);
@@ -978,8 +977,6 @@ int input_register_device(struct input_dev *dev)
if (error)
goto fail3;
- __module_get(THIS_MODULE);
-
path = kobject_get_path(&dev->cdev.kobj, GFP_KERNEL);
printk(KERN_INFO "input: %s as %s\n",
dev->name ? dev->name : "Unspecified device", path ? path : "N/A");
@@ -1008,9 +1005,12 @@ EXPORT_SYMBOL(input_register_device);
void input_unregister_device(struct input_dev *dev)
{
struct list_head *node, *next;
+ int code;
- if (!dev)
- return;
+ for (code = 0; code <= KEY_MAX; code++)
+ if (test_bit(code, dev->key))
+ input_report_key(dev, code, 0);
+ input_sync(dev);
del_timer_sync(&dev->timer);
@@ -1037,19 +1037,20 @@ void input_unregister_device(struct input_dev *dev)
}
EXPORT_SYMBOL(input_unregister_device);
-void input_register_handler(struct input_handler *handler)
+int input_register_handler(struct input_handler *handler)
{
struct input_dev *dev;
struct input_handle *handle;
- struct input_device_id *id;
-
- if (!handler)
- return;
+ const struct input_device_id *id;
INIT_LIST_HEAD(&handler->h_list);
- if (handler->fops != NULL)
+ if (handler->fops != NULL) {
+ if (input_table[handler->minor >> 5])
+ return -EBUSY;
+
input_table[handler->minor >> 5] = handler;
+ }
list_add_tail(&handler->node, &input_handler_list);
@@ -1063,6 +1064,7 @@ void input_register_handler(struct input_handler *handler)
}
input_wakeup_procfs_readers();
+ return 0;
}
EXPORT_SYMBOL(input_register_handler);
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index d67157513bf..9f3529ad3fd 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -451,7 +451,7 @@ static int joydev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
}
}
-static struct file_operations joydev_fops = {
+static const struct file_operations joydev_fops = {
.owner = THIS_MODULE,
.read = joydev_read,
.write = joydev_write,
@@ -465,7 +465,8 @@ static struct file_operations joydev_fops = {
.fasync = joydev_fasync,
};
-static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct joydev *joydev;
struct class_device *cdev;
@@ -562,7 +563,7 @@ static void joydev_disconnect(struct input_handle *handle)
joydev_free(joydev);
}
-static struct input_device_id joydev_blacklist[] = {
+static const struct input_device_id joydev_blacklist[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
.evbit = { BIT(EV_KEY) },
@@ -571,7 +572,7 @@ static struct input_device_id joydev_blacklist[] = {
{ } /* Terminating entry */
};
-static struct input_device_id joydev_ids[] = {
+static const struct input_device_id joydev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_ABSBIT,
.evbit = { BIT(EV_ABS) },
@@ -605,8 +606,7 @@ static struct input_handler joydev_handler = {
static int __init joydev_init(void)
{
- input_register_handler(&joydev_handler);
- return 0;
+ return input_register_handler(&joydev_handler);
}
static void __exit joydev_exit(void)
diff --git a/drivers/input/joystick/iforce/iforce-ff.c b/drivers/input/joystick/iforce/iforce-ff.c
index 50c90765aee..8fb0c19cc60 100644
--- a/drivers/input/joystick/iforce/iforce-ff.c
+++ b/drivers/input/joystick/iforce/iforce-ff.c
@@ -165,19 +165,19 @@ static int make_condition_modifier(struct iforce* iforce,
data[0] = LO(mod_chunk->start);
data[1] = HI(mod_chunk->start);
- data[2] = (100*rk)>>15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
- data[3] = (100*lk)>>15; /* This code is incorrect on cpus lacking arith shift */
+ data[2] = (100 * rk) >> 15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
+ data[3] = (100 * lk) >> 15; /* This code is incorrect on cpus lacking arith shift */
- center = (500*center)>>15;
+ center = (500 * center) >> 15;
data[4] = LO(center);
data[5] = HI(center);
- db = (1000*db)>>16;
+ db = (1000 * db) >> 16;
data[6] = LO(db);
data[7] = HI(db);
- data[8] = (100*rsat)>>16;
- data[9] = (100*lsat)>>16;
+ data[8] = (100 * rsat) >> 16;
+ data[9] = (100 * lsat) >> 16;
iforce_send_packet(iforce, FF_CMD_CONDITION, data);
iforce_dump_packet("condition", FF_CMD_CONDITION, data);
@@ -188,6 +188,7 @@ static int make_condition_modifier(struct iforce* iforce,
static unsigned char find_button(struct iforce *iforce, signed short button)
{
int i;
+
for (i = 1; iforce->type->btn[i] >= 0; i++)
if (iforce->type->btn[i] == button)
return i + 1;
@@ -198,19 +199,17 @@ static unsigned char find_button(struct iforce *iforce, signed short button)
* Analyse the changes in an effect, and tell if we need to send an condition
* parameter packet
*/
-static int need_condition_modifier(struct iforce* iforce, struct ff_effect* new)
+static int need_condition_modifier(struct ff_effect *old, struct ff_effect *new)
{
- int id = new->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
- int ret=0;
+ int ret = 0;
int i;
if (new->type != FF_SPRING && new->type != FF_FRICTION) {
printk(KERN_WARNING "iforce.c: bad effect type in need_condition_modifier\n");
- return FALSE;
+ return 0;
}
- for(i=0; i<2; i++) {
+ for (i = 0; i < 2; i++) {
ret |= old->u.condition[i].right_saturation != new->u.condition[i].right_saturation
|| old->u.condition[i].left_saturation != new->u.condition[i].left_saturation
|| old->u.condition[i].right_coeff != new->u.condition[i].right_coeff
@@ -225,35 +224,29 @@ static int need_condition_modifier(struct iforce* iforce, struct ff_effect* new)
* Analyse the changes in an effect, and tell if we need to send a magnitude
* parameter packet
*/
-static int need_magnitude_modifier(struct iforce* iforce, struct ff_effect* effect)
+static int need_magnitude_modifier(struct ff_effect *old, struct ff_effect *effect)
{
- int id = effect->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
if (effect->type != FF_CONSTANT) {
printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
- return FALSE;
+ return 0;
}
- return (old->u.constant.level != effect->u.constant.level);
+ return old->u.constant.level != effect->u.constant.level;
}
/*
* Analyse the changes in an effect, and tell if we need to send an envelope
* parameter packet
*/
-static int need_envelope_modifier(struct iforce* iforce, struct ff_effect* effect)
+static int need_envelope_modifier(struct ff_effect *old, struct ff_effect *effect)
{
- int id = effect->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
switch (effect->type) {
case FF_CONSTANT:
if (old->u.constant.envelope.attack_length != effect->u.constant.envelope.attack_length
|| old->u.constant.envelope.attack_level != effect->u.constant.envelope.attack_level
|| old->u.constant.envelope.fade_length != effect->u.constant.envelope.fade_length
|| old->u.constant.envelope.fade_level != effect->u.constant.envelope.fade_level)
- return TRUE;
+ return 1;
break;
case FF_PERIODIC:
@@ -261,30 +254,26 @@ static int need_envelope_modifier(struct iforce* iforce, struct ff_effect* effec
|| old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level
|| old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length
|| old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level)
- return TRUE;
+ return 1;
break;
default:
printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
}
- return FALSE;
+ return 0;
}
/*
* Analyse the changes in an effect, and tell if we need to send a periodic
* parameter effect
*/
-static int need_period_modifier(struct iforce* iforce, struct ff_effect* new)
+static int need_period_modifier(struct ff_effect *old, struct ff_effect *new)
{
- int id = new->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
if (new->type != FF_PERIODIC) {
- printk(KERN_WARNING "iforce.c: bad effect type in need_periodic_modifier\n");
- return FALSE;
+ printk(KERN_WARNING "iforce.c: bad effect type in need_period_modifier\n");
+ return 0;
}
-
return (old->u.periodic.period != new->u.periodic.period
|| old->u.periodic.magnitude != new->u.periodic.magnitude
|| old->u.periodic.offset != new->u.periodic.offset
@@ -295,19 +284,16 @@ static int need_period_modifier(struct iforce* iforce, struct ff_effect* new)
* Analyse the changes in an effect, and tell if we need to send an effect
* packet
*/
-static int need_core(struct iforce* iforce, struct ff_effect* new)
+static int need_core(struct ff_effect *old, struct ff_effect *new)
{
- int id = new->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
if (old->direction != new->direction
|| old->trigger.button != new->trigger.button
|| old->trigger.interval != new->trigger.interval
|| old->replay.length != new->replay.length
|| old->replay.delay != new->replay.delay)
- return TRUE;
+ return 1;
- return FALSE;
+ return 0;
}
/*
* Send the part common to all effects to the device
@@ -360,7 +346,7 @@ static int make_core(struct iforce* iforce, u16 id, u16 mod_id1, u16 mod_id2,
* Upload a periodic effect to the device
* See also iforce_upload_constant.
*/
-int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int is_update)
+int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
u8 wave_code;
int core_id = effect->id;
@@ -371,23 +357,25 @@ int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int
int param2_err = 1;
int core_err = 0;
- if (!is_update || need_period_modifier(iforce, effect)) {
+ if (!old || need_period_modifier(old, effect)) {
param1_err = make_period_modifier(iforce, mod1_chunk,
- is_update,
+ old != NULL,
effect->u.periodic.magnitude, effect->u.periodic.offset,
effect->u.periodic.period, effect->u.periodic.phase);
- if (param1_err) return param1_err;
+ if (param1_err)
+ return param1_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
}
- if (!is_update || need_envelope_modifier(iforce, effect)) {
+ if (!old || need_envelope_modifier(old, effect)) {
param2_err = make_envelope_modifier(iforce, mod2_chunk,
- is_update,
+ old !=NULL,
effect->u.periodic.envelope.attack_length,
effect->u.periodic.envelope.attack_level,
effect->u.periodic.envelope.fade_length,
effect->u.periodic.envelope.fade_level);
- if (param2_err) return param2_err;
+ if (param2_err)
+ return param2_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
@@ -400,7 +388,7 @@ int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int
default: wave_code = 0x20; break;
}
- if (!is_update || need_core(iforce, effect)) {
+ if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start,
mod2_chunk->start,
@@ -429,7 +417,7 @@ int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int
* 0 Ok, effect created or updated
* 1 effect did not change since last upload, and no packet was therefore sent
*/
-int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int is_update)
+int iforce_upload_constant(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
int core_id = effect->id;
struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
@@ -439,26 +427,28 @@ int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int
int param2_err = 1;
int core_err = 0;
- if (!is_update || need_magnitude_modifier(iforce, effect)) {
+ if (!old || need_magnitude_modifier(old, effect)) {
param1_err = make_magnitude_modifier(iforce, mod1_chunk,
- is_update,
+ old != NULL,
effect->u.constant.level);
- if (param1_err) return param1_err;
+ if (param1_err)
+ return param1_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
}
- if (!is_update || need_envelope_modifier(iforce, effect)) {
+ if (!old || need_envelope_modifier(old, effect)) {
param2_err = make_envelope_modifier(iforce, mod2_chunk,
- is_update,
+ old != NULL,
effect->u.constant.envelope.attack_length,
effect->u.constant.envelope.attack_level,
effect->u.constant.envelope.fade_length,
effect->u.constant.envelope.fade_level);
- if (param2_err) return param2_err;
+ if (param2_err)
+ return param2_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
- if (!is_update || need_core(iforce, effect)) {
+ if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start,
mod2_chunk->start,
@@ -483,7 +473,7 @@ int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int
/*
* Upload an condition effect. Those are for example friction, inertia, springs...
*/
-int iforce_upload_condition(struct iforce* iforce, struct ff_effect* effect, int is_update)
+int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
int core_id = effect->id;
struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
@@ -494,37 +484,39 @@ int iforce_upload_condition(struct iforce* iforce, struct ff_effect* effect, int
int core_err = 0;
switch (effect->type) {
- case FF_SPRING: type = 0x40; break;
- case FF_DAMPER: type = 0x41; break;
+ case FF_SPRING: type = 0x40; break;
+ case FF_DAMPER: type = 0x41; break;
default: return -1;
}
- if (!is_update || need_condition_modifier(iforce, effect)) {
+ if (!old || need_condition_modifier(old, effect)) {
param_err = make_condition_modifier(iforce, mod1_chunk,
- is_update,
+ old != NULL,
effect->u.condition[0].right_saturation,
effect->u.condition[0].left_saturation,
effect->u.condition[0].right_coeff,
effect->u.condition[0].left_coeff,
effect->u.condition[0].deadband,
effect->u.condition[0].center);
- if (param_err) return param_err;
+ if (param_err)
+ return param_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
param_err = make_condition_modifier(iforce, mod2_chunk,
- is_update,
+ old != NULL,
effect->u.condition[1].right_saturation,
effect->u.condition[1].left_saturation,
effect->u.condition[1].right_coeff,
effect->u.condition[1].left_coeff,
effect->u.condition[1].deadband,
effect->u.condition[1].center);
- if (param_err) return param_err;
+ if (param_err)
+ return param_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
- if (!is_update || need_core(iforce, effect)) {
+ if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start, mod2_chunk->start,
type, 0xc0,
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
index b4914e7231f..24c684bc633 100644
--- a/drivers/input/joystick/iforce/iforce-main.c
+++ b/drivers/input/joystick/iforce/iforce-main.c
@@ -83,103 +83,57 @@ static struct iforce_device iforce_device[] = {
{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
};
-
-
-static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+static int iforce_playback(struct input_dev *dev, int effect_id, int value)
{
struct iforce* iforce = dev->private;
- unsigned char data[3];
-
- if (type != EV_FF)
- return -1;
-
- switch (code) {
-
- case FF_GAIN:
-
- data[0] = value >> 9;
- iforce_send_packet(iforce, FF_CMD_GAIN, data);
-
- return 0;
-
- case FF_AUTOCENTER:
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
- data[0] = 0x03;
- data[1] = value >> 9;
- iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+ if (value > 0)
+ set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
+ else
+ clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
- data[0] = 0x04;
- data[1] = 0x01;
- iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+ iforce_control_playback(iforce, effect_id, value);
+ return 0;
+}
- return 0;
+static void iforce_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct iforce* iforce = dev->private;
+ unsigned char data[3];
- default: /* Play or stop an effect */
+ data[0] = gain >> 9;
+ iforce_send_packet(iforce, FF_CMD_GAIN, data);
+}
- if (!CHECK_OWNERSHIP(code, iforce)) {
- return -1;
- }
- if (value > 0) {
- set_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
- }
- else {
- clear_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
- }
+static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ struct iforce* iforce = dev->private;
+ unsigned char data[3];
- iforce_control_playback(iforce, code, value);
- return 0;
- }
+ data[0] = 0x03;
+ data[1] = magnitude >> 9;
+ iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
- return -1;
+ data[0] = 0x04;
+ data[1] = 0x01;
+ iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
}
/*
* Function called when an ioctl is performed on the event dev entry.
* It uploads an effect to the device
*/
-static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
+static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct iforce* iforce = dev->private;
- int id;
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
int ret;
- int is_update;
-
-/* Check this effect type is supported by this device */
- if (!test_bit(effect->type, iforce->dev->ffbit))
- return -EINVAL;
-
-/*
- * If we want to create a new effect, get a free id
- */
- if (effect->id == -1) {
-
- for (id = 0; id < FF_EFFECTS_MAX; ++id)
- if (!test_and_set_bit(FF_CORE_IS_USED, iforce->core_effects[id].flags))
- break;
-
- if (id == FF_EFFECTS_MAX || id >= iforce->dev->ff_effects_max)
- return -ENOMEM;
-
- effect->id = id;
- iforce->core_effects[id].owner = current->pid;
- iforce->core_effects[id].flags[0] = (1 << FF_CORE_IS_USED); /* Only IS_USED bit must be set */
-
- is_update = FALSE;
- }
- else {
- /* We want to update an effect */
- if (!CHECK_OWNERSHIP(effect->id, iforce))
- return -EACCES;
-
- /* Parameter type cannot be updated */
- if (effect->type != iforce->core_effects[effect->id].effect.type)
- return -EINVAL;
+ if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
/* Check the effect is not already being updated */
- if (test_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags))
+ if (test_bit(FF_CORE_UPDATE, core_effect->flags))
return -EAGAIN;
-
- is_update = TRUE;
}
/*
@@ -188,28 +142,28 @@ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
switch (effect->type) {
case FF_PERIODIC:
- ret = iforce_upload_periodic(iforce, effect, is_update);
+ ret = iforce_upload_periodic(iforce, effect, old);
break;
case FF_CONSTANT:
- ret = iforce_upload_constant(iforce, effect, is_update);
+ ret = iforce_upload_constant(iforce, effect, old);
break;
case FF_SPRING:
case FF_DAMPER:
- ret = iforce_upload_condition(iforce, effect, is_update);
+ ret = iforce_upload_condition(iforce, effect, old);
break;
default:
return -EINVAL;
}
+
if (ret == 0) {
/* A packet was sent, forbid new updates until we are notified
* that the packet was updated
*/
- set_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags);
+ set_bit(FF_CORE_UPDATE, core_effect->flags);
}
- iforce->core_effects[effect->id].effect = *effect;
return ret;
}
@@ -219,20 +173,9 @@ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
*/
static int iforce_erase_effect(struct input_dev *dev, int effect_id)
{
- struct iforce* iforce = dev->private;
+ struct iforce *iforce = dev->private;
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
int err = 0;
- struct iforce_core_effect* core_effect;
-
- if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
- return -EINVAL;
-
- core_effect = &iforce->core_effects[effect_id];
-
- /* Check who is trying to erase this effect */
- if (core_effect->owner != current->pid) {
- printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, core_effect->owner);
- return -EACCES;
- }
if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
err = release_resource(&core_effect->mod1_chunk);
@@ -240,7 +183,7 @@ static int iforce_erase_effect(struct input_dev *dev, int effect_id)
if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
err = release_resource(&core_effect->mod2_chunk);
- /*TODO: remember to change that if more FF_MOD* bits are added */
+ /* TODO: remember to change that if more FF_MOD* bits are added */
core_effect->flags[0] = 0;
return err;
@@ -260,52 +203,31 @@ static int iforce_open(struct input_dev *dev)
#endif
}
- /* Enable force feedback */
- iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
+ if (test_bit(EV_FF, dev->evbit)) {
+ /* Enable force feedback */
+ iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
+ }
return 0;
}
-static int iforce_flush(struct input_dev *dev, struct file *file)
+static void iforce_release(struct input_dev *dev)
{
struct iforce *iforce = dev->private;
int i;
- /* Erase all effects this process owns */
- for (i=0; i<dev->ff_effects_max; ++i) {
-
- if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
- current->pid == iforce->core_effects[i].owner) {
-
- /* Stop effect */
- input_report_ff(dev, i, 0);
-
- /* Free ressources assigned to effect */
- if (iforce_erase_effect(dev, i)) {
- printk(KERN_WARNING "iforce_flush: erase effect %d failed\n", i);
+ if (test_bit(EV_FF, dev->evbit)) {
+ /* Check: no effects should be present in memory */
+ for (i = 0; i < dev->ff->max_effects; i++) {
+ if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
+ printk(KERN_WARNING "iforce_release: Device still owns effects\n");
+ break;
}
}
+ /* Disable force feedback playback */
+ iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
}
- return 0;
-}
-
-static void iforce_release(struct input_dev *dev)
-{
- struct iforce *iforce = dev->private;
- int i;
-
- /* Check: no effect should be present in memory */
- for (i=0; i<dev->ff_effects_max; ++i) {
- if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags))
- break;
- }
- if (i<dev->ff_effects_max) {
- printk(KERN_WARNING "iforce_release: Device still owns effects\n");
- }
-
- /* Disable force feedback playback */
- iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
@@ -342,8 +264,10 @@ void iforce_delete_device(struct iforce *iforce)
int iforce_init_device(struct iforce *iforce)
{
struct input_dev *input_dev;
+ struct ff_device *ff;
unsigned char c[] = "CEOV";
- int i;
+ int i, error;
+ int ff_effects = 0;
input_dev = input_allocate_device();
if (!input_dev)
@@ -378,11 +302,6 @@ int iforce_init_device(struct iforce *iforce)
input_dev->name = "Unknown I-Force device";
input_dev->open = iforce_open;
input_dev->close = iforce_release;
- input_dev->flush = iforce_flush;
- input_dev->event = iforce_input_event;
- input_dev->upload_effect = iforce_upload_effect;
- input_dev->erase_effect = iforce_erase_effect;
- input_dev->ff_effects_max = 10;
/*
* On-device memory allocation.
@@ -430,15 +349,15 @@ int iforce_init_device(struct iforce *iforce)
printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet B\n");
if (!iforce_get_id_packet(iforce, "N"))
- iforce->dev->ff_effects_max = iforce->edata[1];
+ ff_effects = iforce->edata[1];
else
printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet N\n");
/* Check if the device can store more effects than the driver can really handle */
- if (iforce->dev->ff_effects_max > FF_EFFECTS_MAX) {
- printk(KERN_WARNING "input??: Device can handle %d effects, but N_EFFECTS_MAX is set to %d in iforce.h\n",
- iforce->dev->ff_effects_max, FF_EFFECTS_MAX);
- iforce->dev->ff_effects_max = FF_EFFECTS_MAX;
+ if (ff_effects > IFORCE_EFFECTS_MAX) {
+ printk(KERN_WARNING "iforce: Limiting number of effects to %d (device reports %d)\n",
+ IFORCE_EFFECTS_MAX, ff_effects);
+ ff_effects = IFORCE_EFFECTS_MAX;
}
/*
@@ -472,12 +391,10 @@ int iforce_init_device(struct iforce *iforce)
* Set input device bitfields and ranges.
*/
- input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF) | BIT(EV_FF_STATUS);
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF_STATUS);
- for (i = 0; iforce->type->btn[i] >= 0; i++) {
- signed short t = iforce->type->btn[i];
- set_bit(t, input_dev->keybit);
- }
+ for (i = 0; iforce->type->btn[i] >= 0; i++)
+ set_bit(iforce->type->btn[i], input_dev->keybit);
set_bit(BTN_DEAD, input_dev->keybit);
for (i = 0; iforce->type->abs[i] >= 0; i++) {
@@ -516,9 +433,24 @@ int iforce_init_device(struct iforce *iforce)
}
}
- for (i = 0; iforce->type->ff[i] >= 0; i++)
- set_bit(iforce->type->ff[i], input_dev->ffbit);
+ if (ff_effects) {
+ for (i = 0; iforce->type->ff[i] >= 0; i++)
+ set_bit(iforce->type->ff[i], input_dev->ffbit);
+
+ error = input_ff_create(input_dev, ff_effects);
+ if (error) {
+ input_free_device(input_dev);
+ return error;
+ }
+
+ ff = input_dev->ff;
+ ff->upload = iforce_upload_effect;
+ ff->erase = iforce_erase_effect;
+ ff->set_gain = iforce_set_gain;
+ ff->set_autocenter = iforce_set_autocenter;
+ ff->playback = iforce_playback;
+ }
/*
* Register input device.
*/
diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c
index 76cb1f88f4e..8632d47a7fb 100644
--- a/drivers/input/joystick/iforce/iforce-packets.c
+++ b/drivers/input/joystick/iforce/iforce-packets.c
@@ -140,7 +140,10 @@ static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
{
int i;
- for (i = 0; i < iforce->dev->ff_effects_max; ++i) {
+ if (!iforce->dev->ff)
+ return 0;
+
+ for (i = 0; i < iforce->dev->ff->max_effects; ++i) {
if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
(iforce->core_effects[i].mod1_chunk.start == addr ||
iforce->core_effects[i].mod2_chunk.start == addr)) {
@@ -229,19 +232,17 @@ void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data,
i = data[1] & 0x7f;
if (data[1] & 0x80) {
if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
- /* Report play event */
- input_report_ff_status(dev, i, FF_STATUS_PLAYING);
+ /* Report play event */
+ input_report_ff_status(dev, i, FF_STATUS_PLAYING);
}
- }
- else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+ } else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report stop event */
input_report_ff_status(dev, i, FF_STATUS_STOPPED);
}
if (LO(cmd) > 3) {
int j;
- for (j=3; j<LO(cmd); j+=2) {
+ for (j = 3; j < LO(cmd); j += 2)
mark_core_as_ready(iforce, data[j] | (data[j+1]<<8));
- }
}
break;
}
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
index e9924d6f01b..947df273984 100644
--- a/drivers/input/joystick/iforce/iforce.h
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -51,10 +51,7 @@
#define IFORCE_232 1
#define IFORCE_USB 2
-#define FALSE 0
-#define TRUE 1
-
-#define FF_EFFECTS_MAX 32
+#define IFORCE_EFFECTS_MAX 32
/* Each force feedback effect is made of one core effect, which can be
* associated to at most to effect modifiers
@@ -67,24 +64,11 @@
#define FF_CORE_UPDATE 5 /* Effect is being updated */
#define FF_MODCORE_MAX 5
-#define CHECK_OWNERSHIP(i, iforce) \
- ((i) < FF_EFFECTS_MAX && i >= 0 && \
- test_bit(FF_CORE_IS_USED, (iforce)->core_effects[(i)].flags) && \
- (current->pid == 0 || \
- (iforce)->core_effects[(i)].owner == current->pid))
-
struct iforce_core_effect {
/* Information about where modifiers are stored in the device's memory */
struct resource mod1_chunk;
struct resource mod2_chunk;
unsigned long flags[NBITS(FF_MODCORE_MAX)];
- pid_t owner;
- /* Used to keep track of parameters of an effect. They are needed
- * to know what parts of an effect changed in an update operation.
- * We try to send only parameter packets if possible, as sending
- * effect parameter requires the effect to be stoped and restarted
- */
- struct ff_effect effect;
};
#define FF_CMD_EFFECT 0x010e
@@ -145,7 +129,7 @@ struct iforce {
/* Force Feedback */
wait_queue_head_t wait;
struct resource device_memory;
- struct iforce_core_effect core_effects[FF_EFFECTS_MAX];
+ struct iforce_core_effect core_effects[IFORCE_EFFECTS_MAX];
struct mutex mem_mutex;
};
@@ -182,9 +166,9 @@ void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data) ;
int iforce_get_id_packet(struct iforce *iforce, char *packet);
/* iforce-ff.c */
-int iforce_upload_periodic(struct iforce*, struct ff_effect*, int is_update);
-int iforce_upload_constant(struct iforce*, struct ff_effect*, int is_update);
-int iforce_upload_condition(struct iforce*, struct ff_effect*, int is_update);
+int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *);
/* Public variables */
extern struct serio_driver iforce_serio_drv;
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index a86afd0a5ef..40244d4ce0f 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -652,9 +652,7 @@ static int atkbd_probe(struct atkbd *atkbd)
return 0;
}
- if (param[0] != 0xab && param[0] != 0xac && /* Regular and NCD Sun keyboards */
- param[0] != 0x2b && param[0] != 0x5d && /* Trust keyboard, raw and translated */
- param[0] != 0x60 && param[0] != 0x47) /* NMB SGI keyboard, raw and translated */
+ if (!ps2_is_keyboard_id(param[0]))
return -1;
atkbd->id = (param[0] << 8) | param[1];
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index d723e9ad7c4..9516439b7c7 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -20,6 +20,9 @@
* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
*
* Changes/Revisions:
+ * 0.3 09/04/2006 (Anssi Hannula <anssi.hannula@gmail.com>)
+ * - updated ff support for the changes in kernel interface
+ * - added MODULE_VERSION
* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
* - added force feedback support
* - added UI_SET_PHYS
@@ -107,18 +110,31 @@ static int uinput_request_submit(struct input_dev *dev, struct uinput_request *r
return request->retval;
}
-static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect)
+static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
+{
+ uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
+}
+
+static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
+}
+
+static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
+{
+ return uinput_dev_event(dev, EV_FF, effect_id, value);
+}
+
+static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct uinput_request request;
int retval;
- if (!test_bit(EV_FF, dev->evbit))
- return -ENOSYS;
-
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_UPLOAD;
- request.u.effect = effect;
+ request.u.upload.effect = effect;
+ request.u.upload.old = old;
retval = uinput_request_reserve_slot(dev->private, &request);
if (!retval)
@@ -168,6 +184,7 @@ static void uinput_destroy_device(struct uinput_device *udev)
static int uinput_create_device(struct uinput_device *udev)
{
+ struct input_dev *dev = udev->dev;
int error;
if (udev->state != UIST_SETUP_COMPLETE) {
@@ -175,15 +192,29 @@ static int uinput_create_device(struct uinput_device *udev)
return -EINVAL;
}
- error = input_register_device(udev->dev);
- if (error) {
- uinput_destroy_device(udev);
- return error;
+ if (udev->ff_effects_max) {
+ error = input_ff_create(dev, udev->ff_effects_max);
+ if (error)
+ goto fail1;
+
+ dev->ff->upload = uinput_dev_upload_effect;
+ dev->ff->erase = uinput_dev_erase_effect;
+ dev->ff->playback = uinput_dev_playback;
+ dev->ff->set_gain = uinput_dev_set_gain;
+ dev->ff->set_autocenter = uinput_dev_set_autocenter;
}
+ error = input_register_device(udev->dev);
+ if (error)
+ goto fail2;
+
udev->state = UIST_CREATED;
return 0;
+
+ fail2: input_ff_destroy(dev);
+ fail1: uinput_destroy_device(udev);
+ return error;
}
static int uinput_open(struct inode *inode, struct file *file)
@@ -243,8 +274,6 @@ static int uinput_allocate_device(struct uinput_device *udev)
return -ENOMEM;
udev->dev->event = uinput_dev_event;
- udev->dev->upload_effect = uinput_dev_upload_effect;
- udev->dev->erase_effect = uinput_dev_erase_effect;
udev->dev->private = udev;
return 0;
@@ -278,6 +307,8 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
goto exit;
}
+ udev->ff_effects_max = user_dev->ff_effects_max;
+
size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
if (!size) {
retval = -EINVAL;
@@ -296,7 +327,6 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
dev->id.vendor = user_dev->id.vendor;
dev->id.product = user_dev->id.product;
dev->id.version = user_dev->id.version;
- dev->ff_effects_max = user_dev->ff_effects_max;
size = sizeof(int) * (ABS_MAX + 1);
memcpy(dev->absmax, user_dev->absmax, size);
@@ -525,12 +555,17 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
}
req = uinput_request_find(udev, ff_up.request_id);
- if (!(req && req->code == UI_FF_UPLOAD && req->u.effect)) {
+ if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
retval = -EINVAL;
break;
}
ff_up.retval = 0;
- memcpy(&ff_up.effect, req->u.effect, sizeof(struct ff_effect));
+ memcpy(&ff_up.effect, req->u.upload.effect, sizeof(struct ff_effect));
+ if (req->u.upload.old)
+ memcpy(&ff_up.old, req->u.upload.old, sizeof(struct ff_effect));
+ else
+ memset(&ff_up.old, 0, sizeof(struct ff_effect));
+
if (copy_to_user(p, &ff_up, sizeof(ff_up))) {
retval = -EFAULT;
break;
@@ -561,12 +596,11 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
}
req = uinput_request_find(udev, ff_up.request_id);
- if (!(req && req->code == UI_FF_UPLOAD && req->u.effect)) {
+ if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
retval = -EINVAL;
break;
}
req->retval = ff_up.retval;
- memcpy(req->u.effect, &ff_up.effect, sizeof(struct ff_effect));
uinput_request_done(udev, req);
break;
@@ -622,6 +656,7 @@ static void __exit uinput_exit(void)
MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
MODULE_DESCRIPTION("User level driver support for input subsystem");
MODULE_LICENSE("GPL");
+MODULE_VERSION("0.3");
module_init(uinput_init);
module_exit(uinput_exit);
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 070d75330af..450b68a619f 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -36,7 +36,7 @@
#define ALPS_PASS 0x20
#define ALPS_FW_BK_2 0x40
-static struct alps_model_info alps_model_data[] = {
+static const struct alps_model_info alps_model_data[] = {
{ { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
{ { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
{ { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
@@ -209,10 +209,10 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *
return PSMOUSE_GOOD_DATA;
}
-static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
+static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
- unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
+ static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
unsigned char param[4];
int i;
@@ -504,7 +504,7 @@ init_fail:
int alps_detect(struct psmouse *psmouse, int set_properties)
{
int version;
- struct alps_model_info *model;
+ const struct alps_model_info *model;
if (!(model = alps_get_model(psmouse, &version)))
return -1;
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index e428f8d5d12..69db7325a49 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -25,7 +25,7 @@ struct alps_data {
struct input_dev *dev2; /* Relative device */
char name[32]; /* Name */
char phys[32]; /* Phys */
- struct alps_model_info *i; /* Info */
+ const struct alps_model_info *i;/* Info */
int prev_fin; /* Finger bit from previous packet */
};
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index c14395ba798..5e9d2506751 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -115,13 +115,15 @@ static int lifebook_absolute_mode(struct psmouse *psmouse)
static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
- unsigned char params[] = { 0, 1, 2, 2, 3 };
+ static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+ unsigned char p;
if (resolution == 0 || resolution > 400)
resolution = 400;
- ps2_command(&psmouse->ps2dev, &params[resolution / 100], PSMOUSE_CMD_SETRES);
- psmouse->resolution = 50 << params[resolution / 100];
+ p = params[resolution / 100];
+ ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 50 << p;
}
static void lifebook_disconnect(struct psmouse *psmouse)
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 54b696cfe1e..7972eecbcfe 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -30,9 +30,9 @@
#define PS2PP_NAV_BTN 0x20
struct ps2pp_info {
- const int model;
- unsigned const int kind;
- unsigned const int features;
+ u8 model;
+ u8 kind;
+ u16 features;
};
/*
@@ -199,9 +199,9 @@ static void ps2pp_disconnect(struct psmouse *psmouse)
device_remove_file(&psmouse->ps2dev.serio->dev, &psmouse_attr_smartscroll.dattr);
}
-static struct ps2pp_info *get_model_info(unsigned char model)
+static const struct ps2pp_info *get_model_info(unsigned char model)
{
- static struct ps2pp_info ps2pp_list[] = {
+ static const struct ps2pp_info ps2pp_list[] = {
{ 12, 0, PS2PP_SIDE_BTN},
{ 13, 0, 0 },
{ 15, PS2PP_KIND_MX, /* MX1000 */
@@ -215,6 +215,7 @@ static struct ps2pp_info *get_model_info(unsigned char model)
{ 51, 0, 0 },
{ 52, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL },
{ 53, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 56, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL }, /* Cordless MouseMan Wheel */
{ 61, PS2PP_KIND_MX, /* MX700 */
PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
@@ -244,12 +245,11 @@ static struct ps2pp_info *get_model_info(unsigned char model)
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
{ 114, PS2PP_KIND_MX, /* MX310 */
PS2PP_WHEEL | PS2PP_SIDE_BTN |
- PS2PP_TASK_BTN | PS2PP_EXTRA_BTN },
- { }
+ PS2PP_TASK_BTN | PS2PP_EXTRA_BTN }
};
int i;
- for (i = 0; ps2pp_list[i].model; i++)
+ for (i = 0; i < ARRAY_SIZE(ps2pp_list); i++)
if (model == ps2pp_list[i].model)
return &ps2pp_list[i];
@@ -261,7 +261,8 @@ static struct ps2pp_info *get_model_info(unsigned char model)
* Set up input device's properties based on the detected mouse model.
*/
-static void ps2pp_set_model_properties(struct psmouse *psmouse, struct ps2pp_info *model_info,
+static void ps2pp_set_model_properties(struct psmouse *psmouse,
+ const struct ps2pp_info *model_info,
int using_ps2pp)
{
struct input_dev *input_dev = psmouse->dev;
@@ -327,7 +328,7 @@ int ps2pp_init(struct psmouse *psmouse, int set_properties)
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[4];
unsigned char model, buttons;
- struct ps2pp_info *model_info;
+ const struct ps2pp_info *model_info;
int use_ps2pp = 0;
param[0] = 0;
@@ -349,7 +350,7 @@ int ps2pp_init(struct psmouse *psmouse, int set_properties)
/*
* Do Logitech PS2++ / PS2T++ magic init.
*/
- if (model == 97) { /* Touch Pad 3 */
+ if (model_info->kind == PS2PP_KIND_TP3) { /* Touch Pad 3 */
/* Unprotect RAM */
param[0] = 0x11; param[1] = 0x04; param[2] = 0x68;
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 343afa38f4c..9fb7eb6b0f7 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -112,8 +112,8 @@ static struct workqueue_struct *kpsmoused_wq;
struct psmouse_protocol {
enum psmouse_type type;
- char *name;
- char *alias;
+ const char *name;
+ const char *alias;
int maxproto;
int (*detect)(struct psmouse *, int);
int (*init)(struct psmouse *);
@@ -507,15 +507,17 @@ static int thinking_detect(struct psmouse *psmouse, int set_properties)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
- unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 };
+ static const unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 };
int i;
param[0] = 10;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 0;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
- for (i = 0; seq[i]; i++)
- ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE);
+ for (i = 0; i < ARRAY_SIZE(seq); i++) {
+ param[0] = seq[i];
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ }
ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
if (param[0] != 2)
@@ -652,7 +654,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
return PSMOUSE_PS2;
}
-static struct psmouse_protocol psmouse_protocols[] = {
+static const struct psmouse_protocol psmouse_protocols[] = {
{
.type = PSMOUSE_PS2,
.name = "PS/2",
@@ -726,7 +728,7 @@ static struct psmouse_protocol psmouse_protocols[] = {
},
};
-static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
{
int i;
@@ -738,9 +740,9 @@ static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
return &psmouse_protocols[0];
}
-static struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
+static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
{
- struct psmouse_protocol *p;
+ const struct psmouse_protocol *p;
int i;
for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) {
@@ -795,13 +797,15 @@ static int psmouse_probe(struct psmouse *psmouse)
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
- unsigned char params[] = { 0, 1, 2, 2, 3 };
+ static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+ unsigned char p;
if (resolution == 0 || resolution > 200)
resolution = 200;
- ps2_command(&psmouse->ps2dev, &params[resolution / 50], PSMOUSE_CMD_SETRES);
- psmouse->resolution = 25 << params[resolution / 50];
+ p = params[resolution / 50];
+ ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 25 << p;
}
/*
@@ -810,12 +814,14 @@ void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
{
- unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
+ static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
+ unsigned char r;
int i = 0;
while (rates[i] > rate) i++;
- ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
- psmouse->rate = rates[i];
+ r = rates[i];
+ ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
+ psmouse->rate = r;
}
/*
@@ -1031,7 +1037,7 @@ static void psmouse_disconnect(struct serio *serio)
mutex_unlock(&psmouse_mutex);
}
-static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *proto)
+static int psmouse_switch_protocol(struct psmouse *psmouse, const struct psmouse_protocol *proto)
{
struct input_dev *input_dev = psmouse->dev;
@@ -1362,7 +1368,7 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
struct serio *serio = psmouse->ps2dev.serio;
struct psmouse *parent = NULL;
struct input_dev *new_dev;
- struct psmouse_protocol *proto;
+ const struct psmouse_protocol *proto;
int retry = 0;
if (!(proto = psmouse_protocol_by_name(buf, count)))
@@ -1459,7 +1465,7 @@ static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data,
static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
{
- struct psmouse_protocol *proto;
+ const struct psmouse_protocol *proto;
if (!val)
return -EINVAL;
diff --git a/drivers/input/mouse/sermouse.c b/drivers/input/mouse/sermouse.c
index 0023501a5b6..680b3235388 100644
--- a/drivers/input/mouse/sermouse.c
+++ b/drivers/input/mouse/sermouse.c
@@ -42,7 +42,7 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-static char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
+static const char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
"Logitech M+ Mouse", "Microsoft MZ Mouse", "Logitech MZ+ Mouse",
"Logitech MZ++ Mouse"};
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index ad5d0a85e96..392108c436b 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -430,11 +430,11 @@ static void synaptics_process_packet(struct psmouse *psmouse)
static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
{
- static unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
- static unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
- static unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
- static unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
- static unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
+ static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
+ static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
+ static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
+ static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
+ static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
if (idx < 0 || idx > 4)
return 0;
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 1f851acab30..a22a74a2a3d 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -614,7 +614,7 @@ static unsigned int mousedev_poll(struct file *file, poll_table *wait)
(list->mousedev->exist ? 0 : (POLLHUP | POLLERR));
}
-static struct file_operations mousedev_fops = {
+static const struct file_operations mousedev_fops = {
.owner = THIS_MODULE,
.read = mousedev_read,
.write = mousedev_write,
@@ -624,7 +624,8 @@ static struct file_operations mousedev_fops = {
.fasync = mousedev_fasync,
};
-static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct mousedev *mousedev;
struct class_device *cdev;
@@ -688,7 +689,7 @@ static void mousedev_disconnect(struct input_handle *handle)
}
}
-static struct input_device_id mousedev_ids[] = {
+static const struct input_device_id mousedev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT,
.evbit = { BIT(EV_KEY) | BIT(EV_REL) },
@@ -737,7 +738,12 @@ static int psaux_registered;
static int __init mousedev_init(void)
{
- input_register_handler(&mousedev_handler);
+ struct class_device *cdev;
+ int error;
+
+ error = input_register_handler(&mousedev_handler);
+ if (error)
+ return error;
memset(&mousedev_mix, 0, sizeof(struct mousedev));
INIT_LIST_HEAD(&mousedev_mix.list);
@@ -746,12 +752,20 @@ static int __init mousedev_init(void)
mousedev_mix.exist = 1;
mousedev_mix.minor = MOUSEDEV_MIX;
- class_device_create(&input_class, NULL,
+ cdev = class_device_create(&input_class, NULL,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX), NULL, "mice");
+ if (IS_ERR(cdev)) {
+ input_unregister_handler(&mousedev_handler);
+ return PTR_ERR(cdev);
+ }
#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
- if (!(psaux_registered = !misc_register(&psaux_mouse)))
- printk(KERN_WARNING "mice: could not misc_register the device\n");
+ error = misc_register(&psaux_mouse);
+ if (error)
+ printk(KERN_WARNING "mice: could not register psaux device, "
+ "error: %d\n", error);
+ else
+ psaux_registered = 1;
#endif
printk(KERN_INFO "mice: PS/2 mouse device common for all mice\n");
diff --git a/drivers/input/power.c b/drivers/input/power.c
index 51a519e24b6..ee82464a2fa 100644
--- a/drivers/input/power.c
+++ b/drivers/input/power.c
@@ -98,7 +98,7 @@ static void power_event(struct input_handle *handle, unsigned int type,
static struct input_handle *power_connect(struct input_handler *handler,
struct input_dev *dev,
- struct input_device_id *id)
+ const struct input_device_id *id)
{
struct input_handle *handle;
@@ -120,7 +120,7 @@ static void power_disconnect(struct input_handle *handle)
kfree(handle);
}
-static struct input_device_id power_ids[] = {
+static const struct input_device_id power_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
.evbit = { BIT(EV_KEY) },
@@ -150,8 +150,7 @@ static struct input_handler power_handler = {
static int __init power_init(void)
{
- input_register_handler(&power_handler);
- return 0;
+ return input_register_handler(&power_handler);
}
static void __exit power_exit(void)
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index f606e96bc2f..8738edda661 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -160,6 +160,13 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
},
},
{
+ .ident = "Toshiba Equium A110",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
+ },
+ },
+ {
.ident = "Alienware Sentia",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
@@ -180,6 +187,13 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
},
},
+ {
+ .ident = "Amoi M636/A737",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
+ },
+ },
{ }
};
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 06a3f25657d..1bb0c76a925 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -90,46 +90,24 @@ static DEFINE_SPINLOCK(i8042_lock);
struct i8042_port {
struct serio *serio;
int irq;
- unsigned char disable;
- unsigned char irqen;
unsigned char exists;
signed char mux;
- char name[8];
};
#define I8042_KBD_PORT_NO 0
#define I8042_AUX_PORT_NO 1
#define I8042_MUX_PORT_NO 2
#define I8042_NUM_PORTS (I8042_NUM_MUX_PORTS + 2)
-static struct i8042_port i8042_ports[I8042_NUM_PORTS] = {
- {
- .disable = I8042_CTR_KBDDIS,
- .irqen = I8042_CTR_KBDINT,
- .mux = -1,
- .name = "KBD",
- },
- {
- .disable = I8042_CTR_AUXDIS,
- .irqen = I8042_CTR_AUXINT,
- .mux = -1,
- .name = "AUX",
- }
-};
+
+static struct i8042_port i8042_ports[I8042_NUM_PORTS];
static unsigned char i8042_initial_ctr;
static unsigned char i8042_ctr;
-static unsigned char i8042_mux_open;
static unsigned char i8042_mux_present;
-static struct timer_list i8042_timer;
+static unsigned char i8042_kbd_irq_registered;
+static unsigned char i8042_aux_irq_registered;
static struct platform_device *i8042_platform_device;
-
-/*
- * Shared IRQ's require a device pointer, but this driver doesn't support
- * multiple devices
- */
-#define i8042_request_irq_cookie (&i8042_timer)
-
static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
/*
@@ -141,6 +119,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
static int i8042_wait_read(void)
{
int i = 0;
+
while ((~i8042_read_status() & I8042_STR_OBF) && (i < I8042_CTL_TIMEOUT)) {
udelay(50);
i++;
@@ -151,6 +130,7 @@ static int i8042_wait_read(void)
static int i8042_wait_write(void)
{
int i = 0;
+
while ((i8042_read_status() & I8042_STR_IBF) && (i < I8042_CTL_TIMEOUT)) {
udelay(50);
i++;
@@ -192,48 +172,57 @@ static int i8042_flush(void)
* encoded in bits 8-11 of the command number.
*/
-static int i8042_command(unsigned char *param, int command)
+static int __i8042_command(unsigned char *param, int command)
{
- unsigned long flags;
- int i, retval, auxerr = 0;
+ int i, error;
if (i8042_noloop && command == I8042_CMD_AUX_LOOP)
return -1;
- spin_lock_irqsave(&i8042_lock, flags);
-
- if ((retval = i8042_wait_write()))
- goto out;
+ error = i8042_wait_write();
+ if (error)
+ return error;
dbg("%02x -> i8042 (command)", command & 0xff);
i8042_write_command(command & 0xff);
for (i = 0; i < ((command >> 12) & 0xf); i++) {
- if ((retval = i8042_wait_write()))
- goto out;
+ error = i8042_wait_write();
+ if (error)
+ return error;
dbg("%02x -> i8042 (parameter)", param[i]);
i8042_write_data(param[i]);
}
for (i = 0; i < ((command >> 8) & 0xf); i++) {
- if ((retval = i8042_wait_read()))
- goto out;
+ error = i8042_wait_read();
+ if (error) {
+ dbg(" -- i8042 (timeout)");
+ return error;
+ }
if (command == I8042_CMD_AUX_LOOP &&
!(i8042_read_status() & I8042_STR_AUXDATA)) {
- retval = auxerr = -1;
- goto out;
+ dbg(" -- i8042 (auxerr)");
+ return -1;
}
param[i] = i8042_read_data();
dbg("%02x <- i8042 (return)", param[i]);
}
- if (retval)
- dbg(" -- i8042 (%s)", auxerr ? "auxerr" : "timeout");
+ return 0;
+}
- out:
+static int i8042_command(unsigned char *param, int command)
+{
+ unsigned long flags;
+ int retval;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+ retval = __i8042_command(param, command);
spin_unlock_irqrestore(&i8042_lock, flags);
+
return retval;
}
@@ -248,7 +237,7 @@ static int i8042_kbd_write(struct serio *port, unsigned char c)
spin_lock_irqsave(&i8042_lock, flags);
- if(!(retval = i8042_wait_write())) {
+ if (!(retval = i8042_wait_write())) {
dbg("%02x -> i8042 (kbd-data)", c);
i8042_write_data(c);
}
@@ -287,100 +276,6 @@ static int i8042_aux_write(struct serio *serio, unsigned char c)
}
/*
- * i8042_activate_port() enables port on a chip.
- */
-
-static int i8042_activate_port(struct i8042_port *port)
-{
- if (!port->serio)
- return -1;
-
- i8042_flush();
-
- /*
- * Enable port again here because it is disabled if we are
- * resuming (normally it is enabled already).
- */
- i8042_ctr &= ~port->disable;
-
- i8042_ctr |= port->irqen;
-
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- i8042_ctr &= ~port->irqen;
- return -1;
- }
-
- return 0;
-}
-
-
-/*
- * i8042_open() is called when a port is open by the higher layer.
- * It allocates the interrupt and calls i8042_enable_port.
- */
-
-static int i8042_open(struct serio *serio)
-{
- struct i8042_port *port = serio->port_data;
-
- if (port->mux != -1)
- if (i8042_mux_open++)
- return 0;
-
- if (request_irq(port->irq, i8042_interrupt,
- IRQF_SHARED, "i8042", i8042_request_irq_cookie)) {
- printk(KERN_ERR "i8042.c: Can't get irq %d for %s, unregistering the port.\n", port->irq, port->name);
- goto irq_fail;
- }
-
- if (i8042_activate_port(port)) {
- printk(KERN_ERR "i8042.c: Can't activate %s, unregistering the port\n", port->name);
- goto activate_fail;
- }
-
- i8042_interrupt(0, NULL, NULL);
-
- return 0;
-
- activate_fail:
- free_irq(port->irq, i8042_request_irq_cookie);
-
- irq_fail:
- serio_unregister_port_delayed(serio);
-
- return -1;
-}
-
-/*
- * i8042_close() frees the interrupt, so that it can possibly be used
- * by another driver. We never know - if the user doesn't have a mouse,
- * the BIOS could have used the AUX interrupt for PCI.
- */
-
-static void i8042_close(struct serio *serio)
-{
- struct i8042_port *port = serio->port_data;
-
- if (port->mux != -1)
- if (--i8042_mux_open)
- return;
-
- i8042_ctr &= ~port->irqen;
-
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- printk(KERN_WARNING "i8042.c: Can't write CTR while closing %s.\n", port->name);
-/*
- * We still want to continue and free IRQ so if more data keeps coming in
- * kernel will just ignore the irq.
- */
- }
-
- free_irq(port->irq, i8042_request_irq_cookie);
-
- i8042_flush();
-}
-
-/*
* i8042_start() is called by serio core when port is about to finish
* registering. It will mark port as existing so i8042_interrupt can
* start sending data through it.
@@ -423,8 +318,6 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
unsigned int port_no;
int ret;
- mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
-
spin_lock_irqsave(&i8042_lock, flags);
str = i8042_read_status();
if (unlikely(~str & I8042_STR_OBF)) {
@@ -480,8 +373,8 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
port = &i8042_ports[port_no];
- dbg("%02x <- i8042 (interrupt, %s, %d%s%s)",
- data, port->name, irq,
+ dbg("%02x <- i8042 (interrupt, %d, %d%s%s)",
+ data, port_no, irq,
dfl & SERIO_PARITY ? ", bad parity" : "",
dfl & SERIO_TIMEOUT ? ", timeout" : "");
@@ -494,6 +387,58 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
}
/*
+ * i8042_enable_kbd_port enables keybaord port on chip
+ */
+
+static int i8042_enable_kbd_port(void)
+{
+ i8042_ctr &= ~I8042_CTR_KBDDIS;
+ i8042_ctr |= I8042_CTR_KBDINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ printk(KERN_ERR "i8042.c: Failed to enable KBD port.\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * i8042_enable_aux_port enables AUX (mouse) port on chip
+ */
+
+static int i8042_enable_aux_port(void)
+{
+ i8042_ctr &= ~I8042_CTR_AUXDIS;
+ i8042_ctr |= I8042_CTR_AUXINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ printk(KERN_ERR "i8042.c: Failed to enable AUX port.\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * i8042_enable_mux_ports enables 4 individual AUX ports after
+ * the controller has been switched into Multiplexed mode
+ */
+
+static int i8042_enable_mux_ports(void)
+{
+ unsigned char param;
+ int i;
+
+ for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
+ i8042_command(&param, I8042_CMD_MUX_PFX + i);
+ i8042_command(&param, I8042_CMD_AUX_ENABLE);
+ }
+
+ return i8042_enable_aux_port();
+}
+
+/*
* i8042_set_mux_mode checks whether the controller has an active
* multiplexor and puts the chip into Multiplexed (1) or Legacy (0) mode.
*/
@@ -510,8 +455,7 @@ static int i8042_set_mux_mode(unsigned int mode, unsigned char *mux_version)
/*
* Internal loopback test - send three bytes, they should come back from the
- * mouse interface, the last should be version. Note that we negate mouseport
- * command responses for the i8042_check_aux() routine.
+ * mouse interface, the last should be version.
*/
param = 0xf0;
@@ -530,67 +474,67 @@ static int i8042_set_mux_mode(unsigned int mode, unsigned char *mux_version)
return 0;
}
-
/*
- * i8042_enable_mux_ports enables 4 individual AUX ports after
- * the controller has been switched into Multiplexed mode
+ * i8042_check_mux() checks whether the controller supports the PS/2 Active
+ * Multiplexing specification by Synaptics, Phoenix, Insyde and
+ * LCS/Telegraphics.
*/
-static int i8042_enable_mux_ports(void)
+static int __devinit i8042_check_mux(void)
{
- unsigned char param;
- int i;
+ unsigned char mux_version;
+
+ if (i8042_set_mux_mode(1, &mux_version))
+ return -1;
+
/*
- * Disable all muxed ports by disabling AUX.
+ * Workaround for interference with USB Legacy emulation
+ * that causes a v10.12 MUX to be found.
*/
+ if (mux_version == 0xAC)
+ return -1;
+
+ printk(KERN_INFO "i8042.c: Detected active multiplexing controller, rev %d.%d.\n",
+ (mux_version >> 4) & 0xf, mux_version & 0xf);
+/*
+ * Disable all muxed ports by disabling AUX.
+ */
i8042_ctr |= I8042_CTR_AUXDIS;
i8042_ctr &= ~I8042_CTR_AUXINT;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042.c: Failed to disable AUX port, can't use MUX.\n");
- return -1;
+ return -EIO;
}
-/*
- * Enable all muxed ports.
- */
-
- for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
- i8042_command(&param, I8042_CMD_MUX_PFX + i);
- i8042_command(&param, I8042_CMD_AUX_ENABLE);
- }
+ i8042_mux_present = 1;
return 0;
}
-
/*
- * i8042_check_mux() checks whether the controller supports the PS/2 Active
- * Multiplexing specification by Synaptics, Phoenix, Insyde and
- * LCS/Telegraphics.
+ * The following is used to test AUX IRQ delivery.
*/
+static struct completion i8042_aux_irq_delivered __devinitdata;
+static int i8042_irq_being_tested __devinitdata;
-static int __devinit i8042_check_mux(void)
+static irqreturn_t __devinit i8042_aux_test_irq(int irq, void *dev_id, struct pt_regs *regs)
{
- unsigned char mux_version;
-
- if (i8042_set_mux_mode(1, &mux_version))
- return -1;
-
- /* Workaround for interference with USB Legacy emulation */
- /* that causes a v10.12 MUX to be found. */
- if (mux_version == 0xAC)
- return -1;
-
- printk(KERN_INFO "i8042.c: Detected active multiplexing controller, rev %d.%d.\n",
- (mux_version >> 4) & 0xf, mux_version & 0xf);
+ unsigned long flags;
+ unsigned char str, data;
- if (i8042_enable_mux_ports())
- return -1;
+ spin_lock_irqsave(&i8042_lock, flags);
+ str = i8042_read_status();
+ if (str & I8042_STR_OBF) {
+ data = i8042_read_data();
+ if (i8042_irq_being_tested &&
+ data == 0xa5 && (str & I8042_STR_AUXDATA))
+ complete(&i8042_aux_irq_delivered);
+ }
+ spin_unlock_irqrestore(&i8042_lock, flags);
- i8042_mux_present = 1;
- return 0;
+ return IRQ_HANDLED;
}
@@ -601,18 +545,10 @@ static int __devinit i8042_check_mux(void)
static int __devinit i8042_check_aux(void)
{
+ int retval = -1;
+ int irq_registered = 0;
+ unsigned long flags;
unsigned char param;
- static int i8042_check_aux_cookie;
-
-/*
- * Check if AUX irq is available. If it isn't, then there is no point
- * in trying to detect AUX presence.
- */
-
- if (request_irq(i8042_ports[I8042_AUX_PORT_NO].irq, i8042_interrupt,
- IRQF_SHARED, "i8042", &i8042_check_aux_cookie))
- return -1;
- free_irq(i8042_ports[I8042_AUX_PORT_NO].irq, &i8042_check_aux_cookie);
/*
* Get rid of bytes in the queue.
@@ -637,9 +573,9 @@ static int __devinit i8042_check_aux(void)
* AUX ports, we test for this only when the LOOP command failed.
*/
- if (i8042_command(&param, I8042_CMD_AUX_TEST)
- || (param && param != 0xfa && param != 0xff))
- return -1;
+ if (i8042_command(&param, I8042_CMD_AUX_TEST) ||
+ (param && param != 0xfa && param != 0xff))
+ return -1;
}
/*
@@ -659,54 +595,80 @@ static int __devinit i8042_check_aux(void)
return -1;
/*
- * Disable the interface.
+ * Test AUX IRQ delivery to make sure BIOS did not grab the IRQ and
+ * used it for a PCI card or somethig else.
*/
- i8042_ctr |= I8042_CTR_AUXDIS;
- i8042_ctr &= ~I8042_CTR_AUXINT;
+ if (i8042_noloop) {
+/*
+ * Without LOOP command we can't test AUX IRQ delivery. Assume the port
+ * is working and hope we are right.
+ */
+ retval = 0;
+ goto out;
+ }
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
- return -1;
+ if (request_irq(I8042_AUX_IRQ, i8042_aux_test_irq, IRQF_SHARED,
+ "i8042", i8042_platform_device))
+ goto out;
- return 0;
-}
+ irq_registered = 1;
+
+ if (i8042_enable_aux_port())
+ goto out;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+ init_completion(&i8042_aux_irq_delivered);
+ i8042_irq_being_tested = 1;
+
+ param = 0xa5;
+ retval = __i8042_command(&param, I8042_CMD_AUX_LOOP & 0xf0ff);
+
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ if (retval)
+ goto out;
+ if (wait_for_completion_timeout(&i8042_aux_irq_delivered,
+ msecs_to_jiffies(250)) == 0) {
/*
- * i8042_port_register() marks the device as existing,
- * registers it, and reports to the user.
+ * AUX IRQ was never delivered so we need to flush the controller to
+ * get rid of the byte we put there; otherwise keyboard may not work.
*/
+ i8042_flush();
+ retval = -1;
+ }
-static int __devinit i8042_port_register(struct i8042_port *port)
-{
- i8042_ctr &= ~port->disable;
+ out:
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- printk(KERN_WARNING "i8042.c: Can't write CTR while registering.\n");
- kfree(port->serio);
- port->serio = NULL;
- i8042_ctr |= port->disable;
- return -EIO;
- }
+/*
+ * Disable the interface.
+ */
- printk(KERN_INFO "serio: i8042 %s port at %#lx,%#lx irq %d\n",
- port->name,
- (unsigned long) I8042_DATA_REG,
- (unsigned long) I8042_COMMAND_REG,
- port->irq);
+ i8042_ctr |= I8042_CTR_AUXDIS;
+ i8042_ctr &= ~I8042_CTR_AUXINT;
- serio_register_port(port->serio);
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
+ retval = -1;
- return 0;
-}
+ if (irq_registered)
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+ return retval;
+}
-static void i8042_timer_func(unsigned long data)
+static int i8042_controller_check(void)
{
- i8042_interrupt(0, NULL, NULL);
+ if (i8042_flush() == I8042_BUFFER_SIZE) {
+ printk(KERN_ERR "i8042.c: No controller found.\n");
+ return -ENODEV;
+ }
+
+ return 0;
}
-static int i8042_ctl_test(void)
+static int i8042_controller_selftest(void)
{
unsigned char param;
@@ -715,13 +677,13 @@ static int i8042_ctl_test(void)
if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
- return -1;
+ return -ENODEV;
}
if (param != I8042_RET_CTL_TEST) {
printk(KERN_ERR "i8042.c: i8042 controller selftest failed. (%#x != %#x)\n",
param, I8042_RET_CTL_TEST);
- return -1;
+ return -EIO;
}
return 0;
@@ -738,25 +700,12 @@ static int i8042_controller_init(void)
unsigned long flags;
/*
- * Test the i8042. We need to know if it thinks it's working correctly
- * before doing anything else.
- */
-
- if (i8042_flush() == I8042_BUFFER_SIZE) {
- printk(KERN_ERR "i8042.c: No controller found.\n");
- return -1;
- }
-
- if (i8042_ctl_test())
- return -1;
-
-/*
* Save the CTR for restoral on unload / reboot.
*/
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_RCTR)) {
printk(KERN_ERR "i8042.c: Can't read CTR while initializing i8042.\n");
- return -1;
+ return -EIO;
}
i8042_initial_ctr = i8042_ctr;
@@ -805,7 +754,7 @@ static int i8042_controller_init(void)
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042.c: Can't write CTR while initializing i8042.\n");
- return -1;
+ return -EIO;
}
return 0;
@@ -813,15 +762,12 @@ static int i8042_controller_init(void)
/*
- * Reset the controller.
+ * Reset the controller and reset CRT to the original value set by BIOS.
*/
+
static void i8042_controller_reset(void)
{
-/*
- * Reset the controller if requested.
- */
-
- i8042_ctl_test();
+ i8042_flush();
/*
* Disable MUX mode if present.
@@ -831,12 +777,16 @@ static void i8042_controller_reset(void)
i8042_set_mux_mode(0, NULL);
/*
- * Restore the original control register setting.
+ * Reset the controller if requested.
*/
- i8042_ctr = i8042_initial_ctr;
+ i8042_controller_selftest();
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
+/*
+ * Restore the original control register setting.
+ */
+
+ if (i8042_command(&i8042_initial_ctr, I8042_CMD_CTL_WCTR))
printk(KERN_WARNING "i8042.c: Can't restore CTR.\n");
}
@@ -850,14 +800,12 @@ static void i8042_controller_cleanup(void)
{
int i;
- i8042_flush();
-
/*
* Reset anything that is connected to the ports.
*/
for (i = 0; i < I8042_NUM_PORTS; i++)
- if (i8042_ports[i].exists)
+ if (i8042_ports[i].serio)
serio_cleanup(i8042_ports[i].serio);
i8042_controller_reset();
@@ -913,8 +861,7 @@ static long i8042_panic_blink(long count)
static int i8042_suspend(struct platform_device *dev, pm_message_t state)
{
- del_timer_sync(&i8042_timer);
- i8042_controller_reset();
+ i8042_controller_cleanup();
return 0;
}
@@ -926,33 +873,39 @@ static int i8042_suspend(struct platform_device *dev, pm_message_t state)
static int i8042_resume(struct platform_device *dev)
{
- int i;
+ int error;
- if (i8042_ctl_test())
- return -1;
+ error = i8042_controller_check();
+ if (error)
+ return error;
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- printk(KERN_ERR "i8042: Can't write CTR\n");
- return -1;
- }
-
- if (i8042_mux_present)
- if (i8042_set_mux_mode(1, NULL) || i8042_enable_mux_ports())
- printk(KERN_WARNING "i8042: failed to resume active multiplexor, mouse won't work.\n");
+ error = i8042_controller_selftest();
+ if (error)
+ return error;
/*
- * Activate all ports.
+ * Restore pre-resume CTR value and disable all ports
*/
- for (i = 0; i < I8042_NUM_PORTS; i++)
- i8042_activate_port(&i8042_ports[i]);
+ i8042_ctr |= I8042_CTR_AUXDIS | I8042_CTR_KBDDIS;
+ i8042_ctr &= ~(I8042_CTR_AUXINT | I8042_CTR_KBDINT);
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ printk(KERN_ERR "i8042: Can't write CTR to resume\n");
+ return -EIO;
+ }
-/*
- * Restart timer (for polling "stuck" data)
- */
- mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
+ if (i8042_mux_present) {
+ if (i8042_set_mux_mode(1, NULL) || i8042_enable_mux_ports())
+ printk(KERN_WARNING
+ "i8042: failed to resume active multiplexor, "
+ "mouse won't work.\n");
+ } else if (i8042_ports[I8042_AUX_PORT_NO].serio)
+ i8042_enable_aux_port();
- panic_blink = i8042_panic_blink;
+ if (i8042_ports[I8042_KBD_PORT_NO].serio)
+ i8042_enable_kbd_port();
+
+ i8042_interrupt(0, NULL, NULL);
return 0;
}
@@ -978,24 +931,24 @@ static int __devinit i8042_create_kbd_port(void)
serio->id.type = i8042_direct ? SERIO_8042 : SERIO_8042_XL;
serio->write = i8042_dumbkbd ? NULL : i8042_kbd_write;
- serio->open = i8042_open;
- serio->close = i8042_close;
serio->start = i8042_start;
serio->stop = i8042_stop;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
- strlcpy(serio->name, "i8042 Kbd Port", sizeof(serio->name));
+ strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name));
strlcpy(serio->phys, I8042_KBD_PHYS_DESC, sizeof(serio->phys));
port->serio = serio;
+ port->irq = I8042_KBD_IRQ;
- return i8042_port_register(port);
+ return 0;
}
-static int __devinit i8042_create_aux_port(void)
+static int __devinit i8042_create_aux_port(int idx)
{
struct serio *serio;
- struct i8042_port *port = &i8042_ports[I8042_AUX_PORT_NO];
+ int port_no = idx < 0 ? I8042_AUX_PORT_NO : I8042_MUX_PORT_NO + idx;
+ struct i8042_port *port = &i8042_ports[port_no];
serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (!serio)
@@ -1003,111 +956,191 @@ static int __devinit i8042_create_aux_port(void)
serio->id.type = SERIO_8042;
serio->write = i8042_aux_write;
- serio->open = i8042_open;
- serio->close = i8042_close;
serio->start = i8042_start;
serio->stop = i8042_stop;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
- strlcpy(serio->name, "i8042 Aux Port", sizeof(serio->name));
- strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
+ if (idx < 0) {
+ strlcpy(serio->name, "i8042 AUX port", sizeof(serio->name));
+ strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
+ } else {
+ snprintf(serio->name, sizeof(serio->name), "i8042 AUX%d port", idx);
+ snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, idx + 1);
+ }
port->serio = serio;
+ port->mux = idx;
+ port->irq = I8042_AUX_IRQ;
- return i8042_port_register(port);
+ return 0;
}
-static int __devinit i8042_create_mux_port(int index)
+static void __devinit i8042_free_kbd_port(void)
{
- struct serio *serio;
- struct i8042_port *port = &i8042_ports[I8042_MUX_PORT_NO + index];
+ kfree(i8042_ports[I8042_KBD_PORT_NO].serio);
+ i8042_ports[I8042_KBD_PORT_NO].serio = NULL;
+}
- serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
- if (!serio)
- return -ENOMEM;
+static void __devinit i8042_free_aux_ports(void)
+{
+ int i;
- serio->id.type = SERIO_8042;
- serio->write = i8042_aux_write;
- serio->open = i8042_open;
- serio->close = i8042_close;
- serio->start = i8042_start;
- serio->stop = i8042_stop;
- serio->port_data = port;
- serio->dev.parent = &i8042_platform_device->dev;
- snprintf(serio->name, sizeof(serio->name), "i8042 Aux-%d Port", index);
- snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, index + 1);
+ for (i = I8042_AUX_PORT_NO; i < I8042_NUM_PORTS; i++) {
+ kfree(i8042_ports[i].serio);
+ i8042_ports[i].serio = NULL;
+ }
+}
- *port = i8042_ports[I8042_AUX_PORT_NO];
- port->exists = 0;
- snprintf(port->name, sizeof(port->name), "AUX%d", index);
- port->mux = index;
- port->serio = serio;
+static void __devinit i8042_register_ports(void)
+{
+ int i;
- return i8042_port_register(port);
+ for (i = 0; i < I8042_NUM_PORTS; i++) {
+ if (i8042_ports[i].serio) {
+ printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n",
+ i8042_ports[i].serio->name,
+ (unsigned long) I8042_DATA_REG,
+ (unsigned long) I8042_COMMAND_REG,
+ i8042_ports[i].irq);
+ serio_register_port(i8042_ports[i].serio);
+ }
+ }
}
-static int __devinit i8042_probe(struct platform_device *dev)
+static void __devinit i8042_unregister_ports(void)
{
- int i, have_ports = 0;
- int err;
+ int i;
- init_timer(&i8042_timer);
- i8042_timer.function = i8042_timer_func;
+ for (i = 0; i < I8042_NUM_PORTS; i++) {
+ if (i8042_ports[i].serio) {
+ serio_unregister_port(i8042_ports[i].serio);
+ i8042_ports[i].serio = NULL;
+ }
+ }
+}
+
+static void i8042_free_irqs(void)
+{
+ if (i8042_aux_irq_registered)
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+ if (i8042_kbd_irq_registered)
+ free_irq(I8042_KBD_IRQ, i8042_platform_device);
+
+ i8042_aux_irq_registered = i8042_kbd_irq_registered = 0;
+}
+
+static int __devinit i8042_setup_aux(void)
+{
+ int (*aux_enable)(void);
+ int error;
+ int i;
- if (i8042_controller_init())
+ if (i8042_check_aux())
return -ENODEV;
- if (!i8042_noaux && !i8042_check_aux()) {
- if (!i8042_nomux && !i8042_check_mux()) {
- for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
- err = i8042_create_mux_port(i);
- if (err)
- goto err_unregister_ports;
- }
- } else {
- err = i8042_create_aux_port();
- if (err)
- goto err_unregister_ports;
+ if (i8042_nomux || i8042_check_mux()) {
+ error = i8042_create_aux_port(-1);
+ if (error)
+ goto err_free_ports;
+ aux_enable = i8042_enable_aux_port;
+ } else {
+ for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
+ error = i8042_create_aux_port(i);
+ if (error)
+ goto err_free_ports;
}
- have_ports = 1;
+ aux_enable = i8042_enable_mux_ports;
}
- if (!i8042_nokbd) {
- err = i8042_create_kbd_port();
- if (err)
- goto err_unregister_ports;
- have_ports = 1;
- }
+ error = request_irq(I8042_AUX_IRQ, i8042_interrupt, IRQF_SHARED,
+ "i8042", i8042_platform_device);
+ if (error)
+ goto err_free_ports;
- if (!have_ports) {
- err = -ENODEV;
- goto err_controller_cleanup;
- }
+ if (aux_enable())
+ goto err_free_irq;
- mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
+ i8042_aux_irq_registered = 1;
return 0;
- err_unregister_ports:
- for (i = 0; i < I8042_NUM_PORTS; i++)
- if (i8042_ports[i].serio)
- serio_unregister_port(i8042_ports[i].serio);
- err_controller_cleanup:
- i8042_controller_cleanup();
+ err_free_irq:
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+ err_free_ports:
+ i8042_free_aux_ports();
+ return error;
+}
- return err;
+static int __devinit i8042_setup_kbd(void)
+{
+ int error;
+
+ error = i8042_create_kbd_port();
+ if (error)
+ return error;
+
+ error = request_irq(I8042_KBD_IRQ, i8042_interrupt, IRQF_SHARED,
+ "i8042", i8042_platform_device);
+ if (error)
+ goto err_free_port;
+
+ error = i8042_enable_kbd_port();
+ if (error)
+ goto err_free_irq;
+
+ i8042_kbd_irq_registered = 1;
+ return 0;
+
+ err_free_irq:
+ free_irq(I8042_KBD_IRQ, i8042_platform_device);
+ err_free_port:
+ i8042_free_kbd_port();
+ return error;
}
-static int __devexit i8042_remove(struct platform_device *dev)
+static int __devinit i8042_probe(struct platform_device *dev)
{
- int i;
+ int error;
- i8042_controller_cleanup();
+ error = i8042_controller_selftest();
+ if (error)
+ return error;
- for (i = 0; i < I8042_NUM_PORTS; i++)
- if (i8042_ports[i].exists)
- serio_unregister_port(i8042_ports[i].serio);
+ error = i8042_controller_init();
+ if (error)
+ return error;
+
+ if (!i8042_noaux) {
+ error = i8042_setup_aux();
+ if (error && error != -ENODEV && error != -EBUSY)
+ goto out_fail;
+ }
+
+ if (!i8042_nokbd) {
+ error = i8042_setup_kbd();
+ if (error)
+ goto out_fail;
+ }
- del_timer_sync(&i8042_timer);
+/*
+ * Ok, everything is ready, let's register all serio ports
+ */
+ i8042_register_ports();
+
+ return 0;
+
+ out_fail:
+ i8042_free_aux_ports(); /* in case KBD failed but AUX not */
+ i8042_free_irqs();
+ i8042_controller_reset();
+
+ return error;
+}
+
+static int __devexit i8042_remove(struct platform_device *dev)
+{
+ i8042_unregister_ports();
+ i8042_free_irqs();
+ i8042_controller_reset();
return 0;
}
@@ -1134,8 +1167,9 @@ static int __init i8042_init(void)
if (err)
return err;
- i8042_ports[I8042_AUX_PORT_NO].irq = I8042_AUX_IRQ;
- i8042_ports[I8042_KBD_PORT_NO].irq = I8042_KBD_IRQ;
+ err = i8042_controller_check();
+ if (err)
+ goto err_platform_exit;
err = platform_driver_register(&i8042_driver);
if (err)
@@ -1151,6 +1185,8 @@ static int __init i8042_init(void)
if (err)
goto err_free_device;
+ panic_blink = i8042_panic_blink;
+
return 0;
err_free_device:
@@ -1167,7 +1203,6 @@ static void __exit i8042_exit(void)
{
platform_device_unregister(i8042_platform_device);
platform_driver_unregister(&i8042_driver);
-
i8042_platform_exit();
panic_blink = NULL;
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index af526ab9ec0..b3eb7a72d96 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -37,15 +37,6 @@
#define I8042_CTL_TIMEOUT 10000
/*
- * When the device isn't opened and it's interrupts aren't used, we poll it at
- * regular intervals to see if any characters arrived. If yes, we can start
- * probing for any mouse / keyboard connected. This is the period of the
- * polling.
- */
-
-#define I8042_POLL_PERIOD HZ/20
-
-/*
* Status register bits.
*/
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index ed202f2f251..dcb16b5cbec 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -27,15 +27,6 @@ MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
MODULE_DESCRIPTION("PS/2 driver library");
MODULE_LICENSE("GPL");
-EXPORT_SYMBOL(ps2_init);
-EXPORT_SYMBOL(ps2_sendbyte);
-EXPORT_SYMBOL(ps2_drain);
-EXPORT_SYMBOL(ps2_command);
-EXPORT_SYMBOL(ps2_schedule_command);
-EXPORT_SYMBOL(ps2_handle_ack);
-EXPORT_SYMBOL(ps2_handle_response);
-EXPORT_SYMBOL(ps2_cmd_aborted);
-
/* Work structure to schedule execution of a command */
struct ps2work {
struct work_struct work;
@@ -71,6 +62,7 @@ int ps2_sendbyte(struct ps2dev *ps2dev, unsigned char byte, int timeout)
return -ps2dev->nak;
}
+EXPORT_SYMBOL(ps2_sendbyte);
/*
* ps2_drain() waits for device to transmit requested number of bytes
@@ -96,15 +88,16 @@ void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout)
msecs_to_jiffies(timeout));
mutex_unlock(&ps2dev->cmd_mutex);
}
+EXPORT_SYMBOL(ps2_drain);
/*
* ps2_is_keyboard_id() checks received ID byte against the list of
* known keyboard IDs.
*/
-static inline int ps2_is_keyboard_id(char id_byte)
+int ps2_is_keyboard_id(char id_byte)
{
- static char keyboard_ids[] = {
+ const static char keyboard_ids[] = {
0xab, /* Regular keyboards */
0xac, /* NCD Sun keyboard */
0x2b, /* Trust keyboard, translated */
@@ -115,6 +108,7 @@ static inline int ps2_is_keyboard_id(char id_byte)
return memchr(keyboard_ids, id_byte, sizeof(keyboard_ids)) != NULL;
}
+EXPORT_SYMBOL(ps2_is_keyboard_id);
/*
* ps2_adjust_timeout() is called after receiving 1st byte of command
@@ -139,6 +133,19 @@ static int ps2_adjust_timeout(struct ps2dev *ps2dev, int command, int timeout)
case PS2_CMD_GETID:
/*
+ * Microsoft Natural Elite keyboard responds to
+ * the GET ID command as it were a mouse, with
+ * a single byte. Fail the command so atkbd will
+ * use alternative probe to detect it.
+ */
+ if (ps2dev->cmdbuf[1] == 0xaa) {
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags = 0;
+ serio_continue_rx(ps2dev->serio);
+ timeout = 0;
+ }
+
+ /*
* If device behind the port is not a keyboard there
* won't be 2nd byte of ID response.
*/
@@ -237,6 +244,7 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
mutex_unlock(&ps2dev->cmd_mutex);
return rc;
}
+EXPORT_SYMBOL(ps2_command);
/*
* ps2_execute_scheduled_command() sends a command, previously scheduled by
@@ -279,6 +287,7 @@ int ps2_schedule_command(struct ps2dev *ps2dev, unsigned char *param, int comman
return 0;
}
+EXPORT_SYMBOL(ps2_schedule_command);
/*
* ps2_init() initializes ps2dev structure
@@ -290,6 +299,7 @@ void ps2_init(struct ps2dev *ps2dev, struct serio *serio)
init_waitqueue_head(&ps2dev->wait);
ps2dev->serio = serio;
}
+EXPORT_SYMBOL(ps2_init);
/*
* ps2_handle_ack() is supposed to be used in interrupt handler
@@ -335,6 +345,7 @@ int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data)
return 1;
}
+EXPORT_SYMBOL(ps2_handle_ack);
/*
* ps2_handle_response() is supposed to be used in interrupt handler
@@ -360,6 +371,7 @@ int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data)
return 1;
}
+EXPORT_SYMBOL(ps2_handle_response);
void ps2_cmd_aborted(struct ps2dev *ps2dev)
{
@@ -371,4 +383,4 @@ void ps2_cmd_aborted(struct ps2dev *ps2dev)
ps2dev->flags = 0;
}
-
+EXPORT_SYMBOL(ps2_cmd_aborted);
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index b1b14f8d4dd..9418bbe4707 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -108,4 +108,40 @@ config TOUCHSCREEN_HP600
To compile this driver as a module, choose M here: the
module will be called hp680_ts_input.
+config TOUCHSCREEN_PENMOUNT
+ tristate "Penmount serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Penmount serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called penmount.
+
+config TOUCHSCREEN_TOUCHRIGHT
+ tristate "Touchright serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Touchright serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called touchright.
+
+config TOUCHSCREEN_TOUCHWIN
+ tristate "Touchwin serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Touchwin serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called touchwin.
+
endif
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 5e5557c4312..1abb8f10d60 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -12,3 +12,6 @@ obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
+obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
+obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
index c86a2eb310f..ab565335ee4 100644
--- a/drivers/input/touchscreen/elo.c
+++ b/drivers/input/touchscreen/elo.c
@@ -23,6 +23,7 @@
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
+#include <linux/ctype.h>
#define DRIVER_DESC "Elo serial touchscreen driver"
@@ -34,7 +35,19 @@ MODULE_LICENSE("GPL");
* Definitions & global arrays.
*/
-#define ELO_MAX_LENGTH 10
+#define ELO_MAX_LENGTH 10
+
+#define ELO10_PACKET_LEN 8
+#define ELO10_TOUCH 0x03
+#define ELO10_PRESSURE 0x80
+
+#define ELO10_LEAD_BYTE 'U'
+
+#define ELO10_ID_CMD 'i'
+
+#define ELO10_TOUCH_PACKET 'T'
+#define ELO10_ACK_PACKET 'A'
+#define ELI10_ID_PACKET 'I'
/*
* Per-touchscreen data.
@@ -43,51 +56,67 @@ MODULE_LICENSE("GPL");
struct elo {
struct input_dev *dev;
struct serio *serio;
+ struct mutex cmd_mutex;
+ struct completion cmd_done;
int id;
int idx;
+ unsigned char expected_packet;
unsigned char csum;
unsigned char data[ELO_MAX_LENGTH];
+ unsigned char response[ELO10_PACKET_LEN];
char phys[32];
};
-static void elo_process_data_10(struct elo* elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_10(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
- elo->csum += elo->data[elo->idx] = data;
-
+ elo->data[elo->idx] = data;
switch (elo->idx++) {
-
case 0:
- if (data != 'U') {
+ elo->csum = 0xaa;
+ if (data != ELO10_LEAD_BYTE) {
+ pr_debug("elo: unsynchronized data: 0x%02x\n", data);
elo->idx = 0;
- elo->csum = 0;
- }
- break;
-
- case 1:
- if (data != 'T') {
- elo->idx = 0;
- elo->csum = 0;
}
break;
case 9:
- if (elo->csum) {
+ elo->idx = 0;
+ if (data != elo->csum) {
+ pr_debug("elo: bad checksum: 0x%02x, expected 0x%02x\n",
+ data, elo->csum);
+ break;
+ }
+ if (elo->data[1] != elo->expected_packet) {
+ if (elo->data[1] != ELO10_TOUCH_PACKET)
+ pr_debug("elo: unexpected packet: 0x%02x\n",
+ elo->data[1]);
+ break;
+ }
+ if (likely(elo->data[1] == ELO10_TOUCH_PACKET)) {
input_regs(dev, regs);
input_report_abs(dev, ABS_X, (elo->data[4] << 8) | elo->data[3]);
input_report_abs(dev, ABS_Y, (elo->data[6] << 8) | elo->data[5]);
- input_report_abs(dev, ABS_PRESSURE, (elo->data[8] << 8) | elo->data[7]);
- input_report_key(dev, BTN_TOUCH, elo->data[8] || elo->data[7]);
+ if (elo->data[2] & ELO10_PRESSURE)
+ input_report_abs(dev, ABS_PRESSURE,
+ (elo->data[8] << 8) | elo->data[7]);
+ input_report_key(dev, BTN_TOUCH, elo->data[2] & ELO10_TOUCH);
input_sync(dev);
+ } else if (elo->data[1] == ELO10_ACK_PACKET) {
+ if (elo->data[2] == '0')
+ elo->expected_packet = ELO10_TOUCH_PACKET;
+ complete(&elo->cmd_done);
+ } else {
+ memcpy(elo->response, &elo->data[1], ELO10_PACKET_LEN);
+ elo->expected_packet = ELO10_ACK_PACKET;
}
- elo->idx = 0;
- elo->csum = 0;
break;
}
+ elo->csum += data;
}
-static void elo_process_data_6(struct elo* elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_6(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
@@ -135,7 +164,7 @@ static void elo_process_data_6(struct elo* elo, unsigned char data, struct pt_re
}
}
-static void elo_process_data_3(struct elo* elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_3(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
@@ -161,7 +190,7 @@ static void elo_process_data_3(struct elo* elo, unsigned char data, struct pt_re
static irqreturn_t elo_interrupt(struct serio *serio,
unsigned char data, unsigned int flags, struct pt_regs *regs)
{
- struct elo* elo = serio_get_drvdata(serio);
+ struct elo *elo = serio_get_drvdata(serio);
switch(elo->id) {
case 0:
@@ -181,17 +210,81 @@ static irqreturn_t elo_interrupt(struct serio *serio,
return IRQ_HANDLED;
}
+static int elo_command_10(struct elo *elo, unsigned char *packet)
+{
+ int rc = -1;
+ int i;
+ unsigned char csum = 0xaa + ELO10_LEAD_BYTE;
+
+ mutex_lock(&elo->cmd_mutex);
+
+ serio_pause_rx(elo->serio);
+ elo->expected_packet = toupper(packet[0]);
+ init_completion(&elo->cmd_done);
+ serio_continue_rx(elo->serio);
+
+ if (serio_write(elo->serio, ELO10_LEAD_BYTE))
+ goto out;
+
+ for (i = 0; i < ELO10_PACKET_LEN; i++) {
+ csum += packet[i];
+ if (serio_write(elo->serio, packet[i]))
+ goto out;
+ }
+
+ if (serio_write(elo->serio, csum))
+ goto out;
+
+ wait_for_completion_timeout(&elo->cmd_done, HZ);
+
+ if (elo->expected_packet == ELO10_TOUCH_PACKET) {
+ /* We are back in reporting mode, the command was ACKed */
+ memcpy(packet, elo->response, ELO10_PACKET_LEN);
+ rc = 0;
+ }
+
+ out:
+ mutex_unlock(&elo->cmd_mutex);
+ return rc;
+}
+
+static int elo_setup_10(struct elo *elo)
+{
+ static const char *elo_types[] = { "Accu", "Dura", "Intelli", "Carroll" };
+ struct input_dev *dev = elo->dev;
+ unsigned char packet[ELO10_PACKET_LEN] = { ELO10_ID_CMD };
+
+ if (elo_command_10(elo, packet))
+ return -1;
+
+ dev->id.version = (packet[5] << 8) | packet[4];
+
+ input_set_abs_params(dev, ABS_X, 96, 4000, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 96, 4000, 0, 0);
+ if (packet[3] & ELO10_PRESSURE)
+ input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
+
+ printk(KERN_INFO "elo: %sTouch touchscreen, fw: %02x.%02x, "
+ "features: %x02x, controller: 0x%02x\n",
+ elo_types[(packet[1] -'0') & 0x03],
+ packet[5], packet[4], packet[3], packet[7]);
+
+ return 0;
+}
+
/*
* elo_disconnect() is the opposite of elo_connect()
*/
static void elo_disconnect(struct serio *serio)
{
- struct elo* elo = serio_get_drvdata(serio);
+ struct elo *elo = serio_get_drvdata(serio);
+ input_get_device(elo->dev);
input_unregister_device(elo->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
+ input_put_device(elo->dev);
kfree(elo);
}
@@ -211,12 +304,15 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
input_dev = input_allocate_device();
if (!elo || !input_dev) {
err = -ENOMEM;
- goto fail;
+ goto fail1;
}
elo->serio = serio;
elo->id = serio->id.id;
elo->dev = input_dev;
+ elo->expected_packet = ELO10_TOUCH_PACKET;
+ mutex_init(&elo->cmd_mutex);
+ init_completion(&elo->cmd_done);
snprintf(elo->phys, sizeof(elo->phys), "%s/input0", serio->phys);
input_dev->private = elo;
@@ -231,12 +327,17 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ serio_set_drvdata(serio, elo);
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
switch (elo->id) {
case 0: /* 10-byte protocol */
- input_set_abs_params(input_dev, ABS_X, 96, 4000, 0, 0);
- input_set_abs_params(input_dev, ABS_Y, 96, 4000, 0, 0);
- input_set_abs_params(input_dev, ABS_PRESSURE, 0, 255, 0, 0);
+ if (elo_setup_10(elo))
+ goto fail3;
+
break;
case 1: /* 6-byte protocol */
@@ -253,17 +354,15 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
break;
}
- serio_set_drvdata(serio, elo);
-
- err = serio_open(serio, drv);
+ err = input_register_device(elo->dev);
if (err)
- goto fail;
+ goto fail3;
- input_register_device(elo->dev);
return 0;
- fail: serio_set_drvdata(serio, NULL);
- input_free_device(input_dev);
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
kfree(elo);
return err;
}
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
new file mode 100644
index 00000000000..f7370109d43
--- /dev/null
+++ b/drivers/input/touchscreen/penmount.c
@@ -0,0 +1,185 @@
+/*
+ * Penmount serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on ELO driver (drivers/input/touchscreen/elo.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Penmount serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define PM_MAX_LENGTH 5
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct pm {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[PM_MAX_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t pm_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+ struct pm *pm = serio_get_drvdata(serio);
+ struct input_dev *dev = pm->dev;
+
+ pm->data[pm->idx] = data;
+
+ if (pm->data[0] & 0x80) {
+ if (PM_MAX_LENGTH == ++pm->idx) {
+ input_regs(dev, regs);
+ input_report_abs(dev, ABS_X, pm->data[2] * 128 + pm->data[1]);
+ input_report_abs(dev, ABS_Y, pm->data[4] * 128 + pm->data[3]);
+ input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
+ input_sync(dev);
+ pm->idx = 0;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * pm_disconnect() is the opposite of pm_connect()
+ */
+
+static void pm_disconnect(struct serio *serio)
+{
+ struct pm *pm = serio_get_drvdata(serio);
+
+ input_get_device(pm->dev);
+ input_unregister_device(pm->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(pm->dev);
+ kfree(pm);
+}
+
+/*
+ * pm_connect() is the routine that is called when someone adds a
+ * new serio device that supports Gunze protocol and registers it as
+ * an input device.
+ */
+
+static int pm_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct pm *pm;
+ struct input_dev *input_dev;
+ int err;
+
+ pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!pm || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ pm->serio = serio;
+ pm->dev = input_dev;
+ snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
+
+ input_dev->private = pm;
+ input_dev->name = "Penmount Serial TouchScreen";
+ input_dev->phys = pm->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_PENMOUNT;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = &serio->dev;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(pm->dev, ABS_X, 0, 0x3ff, 0, 0);
+ input_set_abs_params(pm->dev, ABS_Y, 0, 0x3ff, 0, 0);
+
+ serio_set_drvdata(serio, pm);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(pm->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(pm);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id pm_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_PENMOUNT,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, pm_serio_ids);
+
+static struct serio_driver pm_drv = {
+ .driver = {
+ .name = "penmountlpc",
+ },
+ .description = DRIVER_DESC,
+ .id_table = pm_serio_ids,
+ .interrupt = pm_interrupt,
+ .connect = pm_connect,
+ .disconnect = pm_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init pm_init(void)
+{
+ serio_register_driver(&pm_drv);
+ return 0;
+}
+
+static void __exit pm_exit(void)
+{
+ serio_unregister_driver(&pm_drv);
+}
+
+module_init(pm_init);
+module_exit(pm_exit);
diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c
new file mode 100644
index 00000000000..1c89fa53865
--- /dev/null
+++ b/drivers/input/touchscreen/touchright.c
@@ -0,0 +1,196 @@
+/*
+ * Touchright serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ * and Dan Streetman <ddstreet@ieee.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Touchright serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define TR_FORMAT_TOUCH_BIT 0x01
+#define TR_FORMAT_STATUS_BYTE 0x40
+#define TR_FORMAT_STATUS_MASK ~TR_FORMAT_TOUCH_BIT
+
+#define TR_LENGTH 5
+
+#define TR_MIN_XC 0
+#define TR_MAX_XC 0x1ff
+#define TR_MIN_YC 0
+#define TR_MAX_YC 0x1ff
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct tr {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[TR_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t tr_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+ struct tr *tr = serio_get_drvdata(serio);
+ struct input_dev *dev = tr->dev;
+
+ tr->data[tr->idx] = data;
+
+ if ((tr->data[0] & TR_FORMAT_STATUS_MASK) == TR_FORMAT_STATUS_BYTE) {
+ if (++tr->idx == TR_LENGTH) {
+ input_regs(dev, regs);
+ input_report_abs(dev, ABS_X,
+ (tr->data[1] << 5) | (tr->data[2] >> 1));
+ input_report_abs(dev, ABS_Y,
+ (tr->data[3] << 5) | (tr->data[4] >> 1));
+ input_report_key(dev, BTN_TOUCH,
+ tr->data[0] & TR_FORMAT_TOUCH_BIT);
+ input_sync(dev);
+ tr->idx = 0;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * tr_disconnect() is the opposite of tr_connect()
+ */
+
+static void tr_disconnect(struct serio *serio)
+{
+ struct tr *tr = serio_get_drvdata(serio);
+
+ input_get_device(tr->dev);
+ input_unregister_device(tr->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(tr->dev);
+ kfree(tr);
+}
+
+/*
+ * tr_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Touchright protocol and registers it as
+ * an input device.
+ */
+
+static int tr_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct tr *tr;
+ struct input_dev *input_dev;
+ int err;
+
+ tr = kzalloc(sizeof(struct tr), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!tr || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ tr->serio = serio;
+ tr->dev = input_dev;
+ snprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys);
+
+ input_dev->private = tr;
+ input_dev->name = "Touchright Serial TouchScreen";
+ input_dev->phys = tr->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TOUCHRIGHT;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(tr->dev, ABS_X, TR_MIN_XC, TR_MAX_XC, 0, 0);
+ input_set_abs_params(tr->dev, ABS_Y, TR_MIN_YC, TR_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, tr);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(tr->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(tr);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id tr_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TOUCHRIGHT,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, tr_serio_ids);
+
+static struct serio_driver tr_drv = {
+ .driver = {
+ .name = "touchright",
+ },
+ .description = DRIVER_DESC,
+ .id_table = tr_serio_ids,
+ .interrupt = tr_interrupt,
+ .connect = tr_connect,
+ .disconnect = tr_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init tr_init(void)
+{
+ serio_register_driver(&tr_drv);
+ return 0;
+}
+
+static void __exit tr_exit(void)
+{
+ serio_unregister_driver(&tr_drv);
+}
+
+module_init(tr_init);
+module_exit(tr_exit);
diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c
new file mode 100644
index 00000000000..a7b4c755958
--- /dev/null
+++ b/drivers/input/touchscreen/touchwin.c
@@ -0,0 +1,203 @@
+/*
+ * Touchwindow serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ * and Dan Streetman <ddstreet@ieee.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+/*
+ * 2005/02/19 Rick Koch:
+ * The Touchwindow I used is made by Edmark Corp. and
+ * constantly outputs a stream of 0's unless it is touched.
+ * It then outputs 3 bytes: X, Y, and a copy of Y.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Touchwindow serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define TW_LENGTH 3
+
+#define TW_MIN_XC 0
+#define TW_MAX_XC 0xff
+#define TW_MIN_YC 0
+#define TW_MAX_YC 0xff
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct tw {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ int touched;
+ unsigned char data[TW_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t tw_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+ struct tw *tw = serio_get_drvdata(serio);
+ struct input_dev *dev = tw->dev;
+
+ if (data) { /* touch */
+ tw->touched = 1;
+ tw->data[tw->idx++] = data;
+ /* verify length and that the two Y's are the same */
+ if (tw->idx == TW_LENGTH && tw->data[1] == tw->data[2]) {
+ input_regs(dev, regs);
+ input_report_abs(dev, ABS_X, tw->data[0]);
+ input_report_abs(dev, ABS_Y, tw->data[1]);
+ input_report_key(dev, BTN_TOUCH, 1);
+ input_sync(dev);
+ tw->idx = 0;
+ }
+ } else if (tw->touched) { /* untouch */
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_sync(dev);
+ tw->idx = 0;
+ tw->touched = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * tw_disconnect() is the opposite of tw_connect()
+ */
+
+static void tw_disconnect(struct serio *serio)
+{
+ struct tw *tw = serio_get_drvdata(serio);
+
+ input_get_device(tw->dev);
+ input_unregister_device(tw->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(tw->dev);
+ kfree(tw);
+}
+
+/*
+ * tw_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Touchwin protocol and registers it as
+ * an input device.
+ */
+
+static int tw_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct tw *tw;
+ struct input_dev *input_dev;
+ int err;
+
+ tw = kzalloc(sizeof(struct tw), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!tw || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ tw->serio = serio;
+ tw->dev = input_dev;
+ snprintf(tw->phys, sizeof(tw->phys), "%s/input0", serio->phys);
+
+ input_dev->private = tw;
+ input_dev->name = "Touchwindow Serial TouchScreen";
+ input_dev->phys = tw->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TOUCHWIN;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(tw->dev, ABS_X, TW_MIN_XC, TW_MAX_XC, 0, 0);
+ input_set_abs_params(tw->dev, ABS_Y, TW_MIN_YC, TW_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, tw);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(tw->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(tw);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id tw_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TOUCHWIN,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, tw_serio_ids);
+
+static struct serio_driver tw_drv = {
+ .driver = {
+ .name = "touchwin",
+ },
+ .description = DRIVER_DESC,
+ .id_table = tw_serio_ids,
+ .interrupt = tw_interrupt,
+ .connect = tw_connect,
+ .disconnect = tw_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init tw_init(void)
+{
+ serio_register_driver(&tw_drv);
+ return 0;
+}
+
+static void __exit tw_exit(void)
+{
+ serio_unregister_driver(&tw_drv);
+}
+
+module_init(tw_init);
+module_exit(tw_exit);
diff --git a/drivers/input/tsdev.c b/drivers/input/tsdev.c
index 00e3929c628..a730c461227 100644
--- a/drivers/input/tsdev.c
+++ b/drivers/input/tsdev.c
@@ -135,8 +135,6 @@ struct tsdev_list {
#define TS_GET_CAL _IOR(IOC_H3600_TS_MAGIC, 10, struct ts_calibration)
#define TS_SET_CAL _IOW(IOC_H3600_TS_MAGIC, 11, struct ts_calibration)
-static struct input_handler tsdev_handler;
-
static struct tsdev *tsdev_table[TSDEV_MINORS/2];
static int tsdev_fasync(int fd, struct file *file, int on)
@@ -263,7 +261,7 @@ static int tsdev_ioctl(struct inode *inode, struct file *file,
return retval;
}
-static struct file_operations tsdev_fops = {
+static const struct file_operations tsdev_fops = {
.owner = THIS_MODULE,
.open = tsdev_open,
.release = tsdev_release,
@@ -370,7 +368,7 @@ static void tsdev_event(struct input_handle *handle, unsigned int type,
static struct input_handle *tsdev_connect(struct input_handler *handler,
struct input_dev *dev,
- struct input_device_id *id)
+ const struct input_device_id *id)
{
struct tsdev *tsdev;
struct class_device *cdev;
@@ -443,7 +441,7 @@ static void tsdev_disconnect(struct input_handle *handle)
tsdev_free(tsdev);
}
-static struct input_device_id tsdev_ids[] = {
+static const struct input_device_id tsdev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT,
.evbit = { BIT(EV_KEY) | BIT(EV_REL) },
@@ -481,9 +479,7 @@ static struct input_handler tsdev_handler = {
static int __init tsdev_init(void)
{
- input_register_handler(&tsdev_handler);
- printk(KERN_INFO "ts: Compaq touchscreen protocol output\n");
- return 0;
+ return input_register_handler(&tsdev_handler);
}
static void __exit tsdev_exit(void)
diff --git a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig
index 650103bc961..7ec35c90d2d 100644
--- a/drivers/usb/input/Kconfig
+++ b/drivers/usb/input/Kconfig
@@ -60,16 +60,17 @@ config HID_FF
If unsure, say N.
config HID_PID
- bool "PID Devices (Microsoft Sidewinder Force Feedback 2)"
+ bool "PID device support"
depends on HID_FF
help
- Say Y here if you have a PID-compliant joystick and wish to enable force
- feedback for it. The Microsoft Sidewinder Force Feedback 2 is one such
- device.
+ Say Y here if you have a PID-compliant device and wish to enable force
+ feedback for it. Microsoft Sidewinder Force Feedback 2 is one of such
+ devices.
config LOGITECH_FF
bool "Logitech WingMan *3D support"
depends on HID_FF
+ select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have one of these devices:
- Logitech WingMan Cordless RumblePad
@@ -81,12 +82,21 @@ config LOGITECH_FF
config THRUSTMASTER_FF
bool "ThrustMaster FireStorm Dual Power 2 support (EXPERIMENTAL)"
depends on HID_FF && EXPERIMENTAL
+ select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have a THRUSTMASTER FireStore Dual Power 2,
and want to enable force feedback support for it.
Note: if you say N here, this device will still be supported, but without
force feedback.
+config ZEROPLUS_FF
+ bool "Zeroplus based game controller support"
+ depends on HID_FF
+ select INPUT_FF_MEMLESS if USB_HID
+ help
+ Say Y here if you have a Zeroplus based game controller and want to
+ enable force feedback for it.
+
config USB_HIDDEV
bool "/dev/hiddev raw HID device support"
depends on USB_HID
diff --git a/drivers/usb/input/Makefile b/drivers/usb/input/Makefile
index 764114529c5..affb6a36d24 100644
--- a/drivers/usb/input/Makefile
+++ b/drivers/usb/input/Makefile
@@ -14,7 +14,7 @@ ifeq ($(CONFIG_USB_HIDINPUT),y)
usbhid-objs += hid-input.o
endif
ifeq ($(CONFIG_HID_PID),y)
- usbhid-objs += pid.o
+ usbhid-objs += hid-pidff.o
endif
ifeq ($(CONFIG_LOGITECH_FF),y)
usbhid-objs += hid-lgff.o
@@ -22,6 +22,9 @@ endif
ifeq ($(CONFIG_THRUSTMASTER_FF),y)
usbhid-objs += hid-tmff.o
endif
+ifeq ($(CONFIG_ZEROPLUS_FF),y)
+ usbhid-objs += hid-zpff.o
+endif
ifeq ($(CONFIG_HID_FF),y)
usbhid-objs += hid-ff.o
endif
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index a2c56b2de58..bfa267722f1 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -543,8 +543,6 @@ static void hid_free_device(struct hid_device *device)
{
unsigned i,j;
- hid_ff_exit(device);
-
for (i = 0; i < HID_REPORT_TYPES; i++) {
struct hid_report_enum *report_enum = device->report_enum + i;
@@ -1108,7 +1106,7 @@ int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
/*
* Find a report field with a specified HID usage.
*/
-
+#if 0
struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type)
{
struct hid_report *report;
@@ -1120,6 +1118,7 @@ struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_u
return report->field[i];
return NULL;
}
+#endif /* 0 */
static int hid_submit_out(struct hid_device *hid)
{
diff --git a/drivers/usb/input/hid-ff.c b/drivers/usb/input/hid-ff.c
index d5c91ee6799..a8fc46c721c 100644
--- a/drivers/usb/input/hid-ff.c
+++ b/drivers/usb/input/hid-ff.c
@@ -44,45 +44,38 @@ struct hid_ff_initializer {
int (*init)(struct hid_device*);
};
+/*
+ * We try pidff when no other driver is found because PID is the
+ * standards compliant way of implementing force feedback in HID.
+ * pidff_init() will quickly abort if the device doesn't appear to
+ * be a PID device
+ */
static struct hid_ff_initializer inits[] = {
#ifdef CONFIG_LOGITECH_FF
- {0x46d, 0xc211, hid_lgff_init}, // Logitech Cordless rumble pad
- {0x46d, 0xc283, hid_lgff_init}, // Logitech Wingman Force 3d
- {0x46d, 0xc295, hid_lgff_init}, // Logitech MOMO force wheel
- {0x46d, 0xc219, hid_lgff_init}, // Logitech Cordless rumble pad 2
-#endif
-#ifdef CONFIG_HID_PID
- {0x45e, 0x001b, hid_pid_init},
+ { 0x46d, 0xc211, hid_lgff_init }, /* Logitech Cordless rumble pad */
+ { 0x46d, 0xc283, hid_lgff_init }, /* Logitech Wingman Force 3d */
+ { 0x46d, 0xc295, hid_lgff_init }, /* Logitech MOMO force wheel */
+ { 0x46d, 0xc219, hid_lgff_init }, /* Logitech Cordless rumble pad 2 */
#endif
#ifdef CONFIG_THRUSTMASTER_FF
- {0x44f, 0xb304, hid_tmff_init},
+ { 0x44f, 0xb304, hid_tmff_init },
#endif
- {0, 0, NULL} /* Terminating entry */
+#ifdef CONFIG_ZEROPLUS_FF
+ { 0xc12, 0x0005, hid_zpff_init },
+ { 0xc12, 0x0030, hid_zpff_init },
+#endif
+ { 0, 0, hid_pidff_init} /* Matches anything */
};
-static struct hid_ff_initializer *hid_get_ff_init(__u16 idVendor,
- __u16 idProduct)
-{
- struct hid_ff_initializer *init;
- for (init = inits;
- init->idVendor
- && !(init->idVendor == idVendor
- && init->idProduct == idProduct);
- init++);
-
- return init->idVendor? init : NULL;
-}
-
int hid_ff_init(struct hid_device* hid)
{
struct hid_ff_initializer *init;
+ int vendor = le16_to_cpu(hid->dev->descriptor.idVendor);
+ int product = le16_to_cpu(hid->dev->descriptor.idProduct);
- init = hid_get_ff_init(le16_to_cpu(hid->dev->descriptor.idVendor),
- le16_to_cpu(hid->dev->descriptor.idProduct));
+ for (init = inits; init->idVendor; init++)
+ if (init->idVendor == vendor && init->idProduct == product)
+ break;
- if (!init) {
- dbg("hid_ff_init could not find initializer");
- return -ENOSYS;
- }
return init->init(hid);
}
diff --git a/drivers/usb/input/hid-input.c b/drivers/usb/input/hid-input.c
index 7208839f2db..4c62afbeb43 100644
--- a/drivers/usb/input/hid-input.c
+++ b/drivers/usb/input/hid-input.c
@@ -65,11 +65,9 @@ static const struct {
#define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
#define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
#define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
-#define map_ff(c) do { usage->code = c; usage->type = EV_FF; bit = input->ffbit; max = FF_MAX; } while (0)
#define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0)
#define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0)
-#define map_ff_effect(c) do { set_bit(c, input->ffbit); } while (0)
#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
@@ -525,23 +523,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
case HID_UP_PID:
- set_bit(EV_FF, input->evbit);
switch(usage->hid & HID_USAGE) {
- case 0x26: map_ff_effect(FF_CONSTANT); goto ignore;
- case 0x27: map_ff_effect(FF_RAMP); goto ignore;
- case 0x28: map_ff_effect(FF_CUSTOM); goto ignore;
- case 0x30: map_ff_effect(FF_SQUARE); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x31: map_ff_effect(FF_SINE); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x32: map_ff_effect(FF_TRIANGLE); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x33: map_ff_effect(FF_SAW_UP); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x34: map_ff_effect(FF_SAW_DOWN); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x40: map_ff_effect(FF_SPRING); goto ignore;
- case 0x41: map_ff_effect(FF_DAMPER); goto ignore;
- case 0x42: map_ff_effect(FF_INERTIA); goto ignore;
- case 0x43: map_ff_effect(FF_FRICTION); goto ignore;
- case 0x7e: map_ff(FF_GAIN); break;
- case 0x83: input->ff_effects_max = field->value[0]; goto ignore;
- case 0x98: map_ff(FF_AUTOCENTER); break;
case 0xa4: map_key_clear(BTN_DEAD); break;
default: goto ignore;
}
@@ -698,8 +680,7 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
}
if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
- input->ff_effects_max = value;
- dbg("Maximum Effects - %d",input->ff_effects_max);
+ dbg("Maximum Effects - %d",value);
return;
}
@@ -748,7 +729,7 @@ static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsign
int offset;
if (type == EV_FF)
- return hid_ff_event(hid, dev, type, code, value);
+ return input_ff_event(dev, type, code, value);
if (type != EV_LED)
return -1;
diff --git a/drivers/usb/input/hid-lgff.c b/drivers/usb/input/hid-lgff.c
index f07d44357ff..93da222b6da 100644
--- a/drivers/usb/input/hid-lgff.c
+++ b/drivers/usb/input/hid-lgff.c
@@ -1,12 +1,11 @@
/*
- * $$
- *
* Force feedback support for hid-compliant for some of the devices from
* Logitech, namely:
* - WingMan Cordless RumblePad
* - WingMan Force 3D
*
* Copyright (c) 2002-2004 Johann Deneux
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
*/
/*
@@ -29,495 +28,117 @@
*/
#include <linux/input.h>
-#include <linux/sched.h>
-
-//#define DEBUG
#include <linux/usb.h>
-
-#include <linux/circ_buf.h>
-
#include "hid.h"
-#include "fixp-arith.h"
-
-
-/* Periodicity of the update */
-#define PERIOD (HZ/10)
-
-#define RUN_AT(t) (jiffies + (t))
-
-/* Effect status */
-#define EFFECT_STARTED 0 /* Effect is going to play after some time
- (ff_replay.delay) */
-#define EFFECT_PLAYING 1 /* Effect is being played */
-#define EFFECT_USED 2
-
-// For lgff_device::flags
-#define DEVICE_CLOSING 0 /* The driver is being unitialised */
-
-/* Check that the current process can access an effect */
-#define CHECK_OWNERSHIP(effect) (current->pid == 0 \
- || effect.owner == current->pid)
-
-#define LGFF_CHECK_OWNERSHIP(i, l) \
- (i>=0 && i<LGFF_EFFECTS \
- && test_bit(EFFECT_USED, l->effects[i].flags) \
- && CHECK_OWNERSHIP(l->effects[i]))
-
-#define LGFF_EFFECTS 8
struct device_type {
u16 idVendor;
u16 idProduct;
- signed short *ff;
-};
-
-struct lgff_effect {
- pid_t owner;
-
- struct ff_effect effect;
-
- unsigned long flags[1];
- unsigned int count; /* Number of times left to play */
- unsigned long started_at; /* When the effect started to play */
-};
-
-struct lgff_device {
- struct hid_device* hid;
-
- struct hid_report* constant;
- struct hid_report* rumble;
- struct hid_report* condition;
-
- struct lgff_effect effects[LGFF_EFFECTS];
- spinlock_t lock; /* device-level lock. Having locks on
- a per-effect basis could be nice, but
- isn't really necessary */
-
- unsigned long flags[1]; /* Contains various information about the
- state of the driver for this device */
-
- struct timer_list timer;
+ const signed short *ff;
};
-/* Callbacks */
-static void hid_lgff_exit(struct hid_device* hid);
-static int hid_lgff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value);
-static int hid_lgff_flush(struct input_dev *input, struct file *file);
-static int hid_lgff_upload_effect(struct input_dev *input,
- struct ff_effect *effect);
-static int hid_lgff_erase(struct input_dev *input, int id);
-
-/* Local functions */
-static void hid_lgff_input_init(struct hid_device* hid);
-static void hid_lgff_timer(unsigned long timer_data);
-static struct hid_report* hid_lgff_duplicate_report(struct hid_report*);
-static void hid_lgff_delete_report(struct hid_report*);
-
-static signed short ff_rumble[] = {
+static const signed short ff_rumble[] = {
FF_RUMBLE,
-1
};
-static signed short ff_joystick[] = {
+static const signed short ff_joystick[] = {
FF_CONSTANT,
-1
};
-static struct device_type devices[] = {
- {0x046d, 0xc211, ff_rumble},
- {0x046d, 0xc219, ff_rumble},
- {0x046d, 0xc283, ff_joystick},
- {0x0000, 0x0000, ff_joystick}
+static const struct device_type devices[] = {
+ { 0x046d, 0xc211, ff_rumble },
+ { 0x046d, 0xc219, ff_rumble },
+ { 0x046d, 0xc283, ff_joystick },
+ { 0x0000, 0x0000, ff_joystick }
};
+static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+ struct hid_device *hid = dev->private;
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+ int x, y;
+ unsigned int left, right;
+
+#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
+
+ switch (effect->type) {
+ case FF_CONSTANT:
+ x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */
+ y = effect->u.ramp.end_level + 0x7f;
+ CLAMP(x);
+ CLAMP(y);
+ report->field[0]->value[0] = 0x51;
+ report->field[0]->value[1] = 0x08;
+ report->field[0]->value[2] = x;
+ report->field[0]->value[3] = y;
+ dbg("(x, y)=(%04x, %04x)", x, y);
+ hid_submit_report(hid, report, USB_DIR_OUT);
+ break;
+
+ case FF_RUMBLE:
+ right = effect->u.rumble.strong_magnitude;
+ left = effect->u.rumble.weak_magnitude;
+ right = right * 0xff / 0xffff;
+ left = left * 0xff / 0xffff;
+ CLAMP(left);
+ CLAMP(right);
+ report->field[0]->value[0] = 0x42;
+ report->field[0]->value[1] = 0x00;
+ report->field[0]->value[2] = left;
+ report->field[0]->value[3] = right;
+ dbg("(left, right)=(%04x, %04x)", left, right);
+ hid_submit_report(hid, report, USB_DIR_OUT);
+ break;
+ }
+ return 0;
+}
+
int hid_lgff_init(struct hid_device* hid)
{
- struct lgff_device *private;
- struct hid_report* report;
- struct hid_field* field;
+ struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ struct hid_report *report;
+ struct hid_field *field;
+ int error;
+ int i, j;
/* Find the report to use */
- if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {
+ if (list_empty(report_list)) {
err("No output report found");
return -1;
}
+
/* Check that the report looks ok */
- report = (struct hid_report*)hid->report_enum[HID_OUTPUT_REPORT].report_list.next;
+ report = list_entry(report_list->next, struct hid_report, list);
if (!report) {
err("NULL output report");
return -1;
}
+
field = report->field[0];
if (!field) {
err("NULL field");
return -1;
}
- private = kzalloc(sizeof(struct lgff_device), GFP_KERNEL);
- if (!private)
- return -1;
- hid->ff_private = private;
-
- /* Input init */
- hid_lgff_input_init(hid);
-
-
- private->constant = hid_lgff_duplicate_report(report);
- if (!private->constant) {
- kfree(private);
- return -1;
- }
- private->constant->field[0]->value[0] = 0x51;
- private->constant->field[0]->value[1] = 0x08;
- private->constant->field[0]->value[2] = 0x7f;
- private->constant->field[0]->value[3] = 0x7f;
-
- private->rumble = hid_lgff_duplicate_report(report);
- if (!private->rumble) {
- hid_lgff_delete_report(private->constant);
- kfree(private);
- return -1;
- }
- private->rumble->field[0]->value[0] = 0x42;
-
-
- private->condition = hid_lgff_duplicate_report(report);
- if (!private->condition) {
- hid_lgff_delete_report(private->rumble);
- hid_lgff_delete_report(private->constant);
- kfree(private);
- return -1;
- }
-
- private->hid = hid;
-
- spin_lock_init(&private->lock);
- init_timer(&private->timer);
- private->timer.data = (unsigned long)private;
- private->timer.function = hid_lgff_timer;
-
- /* Event and exit callbacks */
- hid->ff_exit = hid_lgff_exit;
- hid->ff_event = hid_lgff_event;
-
- /* Start the update task */
- private->timer.expires = RUN_AT(PERIOD);
- add_timer(&private->timer); /*TODO: only run the timer when at least
- one effect is playing */
-
- printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
-
- return 0;
-}
-
-static struct hid_report* hid_lgff_duplicate_report(struct hid_report* report)
-{
- struct hid_report* ret;
-
- ret = kmalloc(sizeof(struct lgff_device), GFP_KERNEL);
- if (!ret)
- return NULL;
- *ret = *report;
-
- ret->field[0] = kmalloc(sizeof(struct hid_field), GFP_KERNEL);
- if (!ret->field[0]) {
- kfree(ret);
- return NULL;
- }
- *ret->field[0] = *report->field[0];
-
- ret->field[0]->value = kzalloc(sizeof(s32[8]), GFP_KERNEL);
- if (!ret->field[0]->value) {
- kfree(ret->field[0]);
- kfree(ret);
- return NULL;
- }
-
- return ret;
-}
-
-static void hid_lgff_delete_report(struct hid_report* report)
-{
- if (report) {
- kfree(report->field[0]->value);
- kfree(report->field[0]);
- kfree(report);
- }
-}
-
-static void hid_lgff_input_init(struct hid_device* hid)
-{
- struct device_type* dev = devices;
- signed short* ff;
- u16 idVendor = le16_to_cpu(hid->dev->descriptor.idVendor);
- u16 idProduct = le16_to_cpu(hid->dev->descriptor.idProduct);
- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
- struct input_dev *input_dev = hidinput->input;
-
- while (dev->idVendor && (idVendor != dev->idVendor || idProduct != dev->idProduct))
- dev++;
-
- for (ff = dev->ff; *ff >= 0; ff++)
- set_bit(*ff, input_dev->ffbit);
-
- input_dev->upload_effect = hid_lgff_upload_effect;
- input_dev->flush = hid_lgff_flush;
-
- set_bit(EV_FF, input_dev->evbit);
- input_dev->ff_effects_max = LGFF_EFFECTS;
-}
-
-static void hid_lgff_exit(struct hid_device* hid)
-{
- struct lgff_device *lgff = hid->ff_private;
-
- set_bit(DEVICE_CLOSING, lgff->flags);
- del_timer_sync(&lgff->timer);
-
- hid_lgff_delete_report(lgff->condition);
- hid_lgff_delete_report(lgff->rumble);
- hid_lgff_delete_report(lgff->constant);
-
- kfree(lgff);
-}
-
-static int hid_lgff_event(struct hid_device *hid, struct input_dev* input,
- unsigned int type, unsigned int code, int value)
-{
- struct lgff_device *lgff = hid->ff_private;
- struct lgff_effect *effect = lgff->effects + code;
- unsigned long flags;
-
- if (type != EV_FF) return -EINVAL;
- if (!LGFF_CHECK_OWNERSHIP(code, lgff)) return -EACCES;
- if (value < 0) return -EINVAL;
-
- spin_lock_irqsave(&lgff->lock, flags);
-
- if (value > 0) {
- if (test_bit(EFFECT_STARTED, effect->flags)) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -EBUSY;
- }
- if (test_bit(EFFECT_PLAYING, effect->flags)) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -EBUSY;
- }
-
- effect->count = value;
-
- if (effect->effect.replay.delay) {
- set_bit(EFFECT_STARTED, effect->flags);
- } else {
- set_bit(EFFECT_PLAYING, effect->flags);
- }
- effect->started_at = jiffies;
- }
- else { /* value == 0 */
- clear_bit(EFFECT_STARTED, effect->flags);
- clear_bit(EFFECT_PLAYING, effect->flags);
- }
-
- spin_unlock_irqrestore(&lgff->lock, flags);
-
- return 0;
-
-}
-
-/* Erase all effects this process owns */
-static int hid_lgff_flush(struct input_dev *dev, struct file *file)
-{
- struct hid_device *hid = dev->private;
- struct lgff_device *lgff = hid->ff_private;
- int i;
-
- for (i=0; i<dev->ff_effects_max; ++i) {
-
- /*NOTE: no need to lock here. The only times EFFECT_USED is
- modified is when effects are uploaded or when an effect is
- erased. But a process cannot close its dev/input/eventX fd
- and perform ioctls on the same fd all at the same time */
- if ( current->pid == lgff->effects[i].owner
- && test_bit(EFFECT_USED, lgff->effects[i].flags)) {
-
- if (hid_lgff_erase(dev, i))
- warn("erase effect %d failed", i);
- }
-
- }
-
- return 0;
-}
-
-static int hid_lgff_erase(struct input_dev *dev, int id)
-{
- struct hid_device *hid = dev->private;
- struct lgff_device *lgff = hid->ff_private;
- unsigned long flags;
-
- if (!LGFF_CHECK_OWNERSHIP(id, lgff)) return -EACCES;
-
- spin_lock_irqsave(&lgff->lock, flags);
- lgff->effects[id].flags[0] = 0;
- spin_unlock_irqrestore(&lgff->lock, flags);
-
- return 0;
-}
-
-static int hid_lgff_upload_effect(struct input_dev* input,
- struct ff_effect* effect)
-{
- struct hid_device *hid = input->private;
- struct lgff_device *lgff = hid->ff_private;
- struct lgff_effect new;
- int id;
- unsigned long flags;
-
- dbg("ioctl rumble");
-
- if (!test_bit(effect->type, input->ffbit)) return -EINVAL;
-
- spin_lock_irqsave(&lgff->lock, flags);
-
- if (effect->id == -1) {
- int i;
-
- for (i=0; i<LGFF_EFFECTS && test_bit(EFFECT_USED, lgff->effects[i].flags); ++i);
- if (i >= LGFF_EFFECTS) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -ENOSPC;
+ for (i = 0; i < ARRAY_SIZE(devices); i++) {
+ if (dev->id.vendor == devices[i].idVendor &&
+ dev->id.product == devices[i].idProduct) {
+ for (j = 0; devices[i].ff[j] >= 0; j++)
+ set_bit(devices[i].ff[j], dev->ffbit);
+ break;
}
-
- effect->id = i;
- lgff->effects[i].owner = current->pid;
- lgff->effects[i].flags[0] = 0;
- set_bit(EFFECT_USED, lgff->effects[i].flags);
}
- else if (!LGFF_CHECK_OWNERSHIP(effect->id, lgff)) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -EACCES;
- }
-
- id = effect->id;
- new = lgff->effects[id];
-
- new.effect = *effect;
-
- if (test_bit(EFFECT_STARTED, lgff->effects[id].flags)
- || test_bit(EFFECT_STARTED, lgff->effects[id].flags)) {
-
- /* Changing replay parameters is not allowed (for the time
- being) */
- if (new.effect.replay.delay != lgff->effects[id].effect.replay.delay
- || new.effect.replay.length != lgff->effects[id].effect.replay.length) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -ENOSYS;
- }
- lgff->effects[id] = new;
+ error = input_ff_create_memless(dev, NULL, hid_lgff_play);
+ if (error)
+ return error;
- } else {
- lgff->effects[id] = new;
- }
+ printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
- spin_unlock_irqrestore(&lgff->lock, flags);
return 0;
}
-
-static void hid_lgff_timer(unsigned long timer_data)
-{
- struct lgff_device *lgff = (struct lgff_device*)timer_data;
- struct hid_device *hid = lgff->hid;
- unsigned long flags;
- int x = 0x7f, y = 0x7f; // Coordinates of constant effects
- unsigned int left = 0, right = 0; // Rumbling
- int i;
-
- spin_lock_irqsave(&lgff->lock, flags);
-
- for (i=0; i<LGFF_EFFECTS; ++i) {
- struct lgff_effect* effect = lgff->effects +i;
-
- if (test_bit(EFFECT_PLAYING, effect->flags)) {
-
- switch (effect->effect.type) {
- case FF_CONSTANT: {
- //TODO: handle envelopes
- int degrees = effect->effect.direction * 360 >> 16;
- x += fixp_mult(fixp_sin(degrees),
- fixp_new16(effect->effect.u.constant.level));
- y += fixp_mult(-fixp_cos(degrees),
- fixp_new16(effect->effect.u.constant.level));
- } break;
- case FF_RUMBLE:
- right += effect->effect.u.rumble.strong_magnitude;
- left += effect->effect.u.rumble.weak_magnitude;
- break;
- };
-
- /* One run of the effect is finished playing */
- if (time_after(jiffies,
- effect->started_at
- + effect->effect.replay.delay*HZ/1000
- + effect->effect.replay.length*HZ/1000)) {
- dbg("Finished playing once %d", i);
- if (--effect->count <= 0) {
- dbg("Stopped %d", i);
- clear_bit(EFFECT_PLAYING, effect->flags);
- }
- else {
- dbg("Start again %d", i);
- if (effect->effect.replay.length != 0) {
- clear_bit(EFFECT_PLAYING, effect->flags);
- set_bit(EFFECT_STARTED, effect->flags);
- }
- effect->started_at = jiffies;
- }
- }
-
- } else if (test_bit(EFFECT_STARTED, lgff->effects[i].flags)) {
- /* Check if we should start playing the effect */
- if (time_after(jiffies,
- lgff->effects[i].started_at
- + lgff->effects[i].effect.replay.delay*HZ/1000)) {
- dbg("Now playing %d", i);
- clear_bit(EFFECT_STARTED, lgff->effects[i].flags);
- set_bit(EFFECT_PLAYING, lgff->effects[i].flags);
- }
- }
- }
-
-#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
-
- // Clamp values
- CLAMP(x);
- CLAMP(y);
- CLAMP(left);
- CLAMP(right);
-
-#undef CLAMP
-
- if (x != lgff->constant->field[0]->value[2]
- || y != lgff->constant->field[0]->value[3]) {
- lgff->constant->field[0]->value[2] = x;
- lgff->constant->field[0]->value[3] = y;
- dbg("(x,y)=(%04x, %04x)", x, y);
- hid_submit_report(hid, lgff->constant, USB_DIR_OUT);
- }
-
- if (left != lgff->rumble->field[0]->value[2]
- || right != lgff->rumble->field[0]->value[3]) {
- lgff->rumble->field[0]->value[2] = left;
- lgff->rumble->field[0]->value[3] = right;
- dbg("(left,right)=(%04x, %04x)", left, right);
- hid_submit_report(hid, lgff->rumble, USB_DIR_OUT);
- }
-
- if (!test_bit(DEVICE_CLOSING, lgff->flags)) {
- lgff->timer.expires = RUN_AT(PERIOD);
- add_timer(&lgff->timer);
- }
-
- spin_unlock_irqrestore(&lgff->lock, flags);
-}
diff --git a/drivers/usb/input/hid-pidff.c b/drivers/usb/input/hid-pidff.c
new file mode 100644
index 00000000000..5420c13eb8e
--- /dev/null
+++ b/drivers/usb/input/hid-pidff.c
@@ -0,0 +1,1330 @@
+/*
+ * Force feedback driver for USB HID PID compliant devices
+ *
+ * Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("hid-pidff: " format "\n" , ## arg)
+
+#include <linux/sched.h>
+#include <linux/input.h>
+#include <linux/usb.h>
+
+#include "hid.h"
+
+#define PID_EFFECTS_MAX 64
+
+/* Report usage table used to put reports into an array */
+
+#define PID_SET_EFFECT 0
+#define PID_EFFECT_OPERATION 1
+#define PID_DEVICE_GAIN 2
+#define PID_POOL 3
+#define PID_BLOCK_LOAD 4
+#define PID_BLOCK_FREE 5
+#define PID_DEVICE_CONTROL 6
+#define PID_CREATE_NEW_EFFECT 7
+
+#define PID_REQUIRED_REPORTS 7
+
+#define PID_SET_ENVELOPE 8
+#define PID_SET_CONDITION 9
+#define PID_SET_PERIODIC 10
+#define PID_SET_CONSTANT 11
+#define PID_SET_RAMP 12
+static const u8 pidff_reports[] = {
+ 0x21, 0x77, 0x7d, 0x7f, 0x89, 0x90, 0x96, 0xab,
+ 0x5a, 0x5f, 0x6e, 0x73, 0x74
+};
+
+/* device_control is really 0x95, but 0x96 specified as it is the usage of
+the only field in that report */
+
+/* Value usage tables used to put fields and values into arrays */
+
+#define PID_EFFECT_BLOCK_INDEX 0
+
+#define PID_DURATION 1
+#define PID_GAIN 2
+#define PID_TRIGGER_BUTTON 3
+#define PID_TRIGGER_REPEAT_INT 4
+#define PID_DIRECTION_ENABLE 5
+#define PID_START_DELAY 6
+static const u8 pidff_set_effect[] = {
+ 0x22, 0x50, 0x52, 0x53, 0x54, 0x56, 0xa7
+};
+
+#define PID_ATTACK_LEVEL 1
+#define PID_ATTACK_TIME 2
+#define PID_FADE_LEVEL 3
+#define PID_FADE_TIME 4
+static const u8 pidff_set_envelope[] = { 0x22, 0x5b, 0x5c, 0x5d, 0x5e };
+
+#define PID_PARAM_BLOCK_OFFSET 1
+#define PID_CP_OFFSET 2
+#define PID_POS_COEFFICIENT 3
+#define PID_NEG_COEFFICIENT 4
+#define PID_POS_SATURATION 5
+#define PID_NEG_SATURATION 6
+#define PID_DEAD_BAND 7
+static const u8 pidff_set_condition[] = {
+ 0x22, 0x23, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65
+};
+
+#define PID_MAGNITUDE 1
+#define PID_OFFSET 2
+#define PID_PHASE 3
+#define PID_PERIOD 4
+static const u8 pidff_set_periodic[] = { 0x22, 0x70, 0x6f, 0x71, 0x72 };
+static const u8 pidff_set_constant[] = { 0x22, 0x70 };
+
+#define PID_RAMP_START 1
+#define PID_RAMP_END 2
+static const u8 pidff_set_ramp[] = { 0x22, 0x75, 0x76 };
+
+#define PID_RAM_POOL_AVAILABLE 1
+static const u8 pidff_block_load[] = { 0x22, 0xac };
+
+#define PID_LOOP_COUNT 1
+static const u8 pidff_effect_operation[] = { 0x22, 0x7c };
+
+static const u8 pidff_block_free[] = { 0x22 };
+
+#define PID_DEVICE_GAIN_FIELD 0
+static const u8 pidff_device_gain[] = { 0x7e };
+
+#define PID_RAM_POOL_SIZE 0
+#define PID_SIMULTANEOUS_MAX 1
+#define PID_DEVICE_MANAGED_POOL 2
+static const u8 pidff_pool[] = { 0x80, 0x83, 0xa9 };
+
+/* Special field key tables used to put special field keys into arrays */
+
+#define PID_ENABLE_ACTUATORS 0
+#define PID_RESET 1
+static const u8 pidff_device_control[] = { 0x97, 0x9a };
+
+#define PID_CONSTANT 0
+#define PID_RAMP 1
+#define PID_SQUARE 2
+#define PID_SINE 3
+#define PID_TRIANGLE 4
+#define PID_SAW_UP 5
+#define PID_SAW_DOWN 6
+#define PID_SPRING 7
+#define PID_DAMPER 8
+#define PID_INERTIA 9
+#define PID_FRICTION 10
+static const u8 pidff_effect_types[] = {
+ 0x26, 0x27, 0x30, 0x31, 0x32, 0x33, 0x34,
+ 0x40, 0x41, 0x42, 0x43
+};
+
+#define PID_BLOCK_LOAD_SUCCESS 0
+#define PID_BLOCK_LOAD_FULL 1
+static const u8 pidff_block_load_status[] = { 0x8c, 0x8d };
+
+#define PID_EFFECT_START 0
+#define PID_EFFECT_STOP 1
+static const u8 pidff_effect_operation_status[] = { 0x79, 0x7b };
+
+struct pidff_usage {
+ struct hid_field *field;
+ s32 *value;
+};
+
+struct pidff_device {
+ struct hid_device *hid;
+
+ struct hid_report *reports[sizeof(pidff_reports)];
+
+ struct pidff_usage set_effect[sizeof(pidff_set_effect)];
+ struct pidff_usage set_envelope[sizeof(pidff_set_envelope)];
+ struct pidff_usage set_condition[sizeof(pidff_set_condition)];
+ struct pidff_usage set_periodic[sizeof(pidff_set_periodic)];
+ struct pidff_usage set_constant[sizeof(pidff_set_constant)];
+ struct pidff_usage set_ramp[sizeof(pidff_set_ramp)];
+
+ struct pidff_usage device_gain[sizeof(pidff_device_gain)];
+ struct pidff_usage block_load[sizeof(pidff_block_load)];
+ struct pidff_usage pool[sizeof(pidff_pool)];
+ struct pidff_usage effect_operation[sizeof(pidff_effect_operation)];
+ struct pidff_usage block_free[sizeof(pidff_block_free)];
+
+ /* Special field is a field that is not composed of
+ usage<->value pairs that pidff_usage values are */
+
+ /* Special field in create_new_effect */
+ struct hid_field *create_new_effect_type;
+
+ /* Special fields in set_effect */
+ struct hid_field *set_effect_type;
+ struct hid_field *effect_direction;
+
+ /* Special field in device_control */
+ struct hid_field *device_control;
+
+ /* Special field in block_load */
+ struct hid_field *block_load_status;
+
+ /* Special field in effect_operation */
+ struct hid_field *effect_operation_status;
+
+ int control_id[sizeof(pidff_device_control)];
+ int type_id[sizeof(pidff_effect_types)];
+ int status_id[sizeof(pidff_block_load_status)];
+ int operation_id[sizeof(pidff_effect_operation_status)];
+
+ int pid_id[PID_EFFECTS_MAX];
+};
+
+/*
+ * Scale an unsigned value with range 0..max for the given field
+ */
+static int pidff_rescale(int i, int max, struct hid_field *field)
+{
+ return i * (field->logical_maximum - field->logical_minimum) / max +
+ field->logical_minimum;
+}
+
+/*
+ * Scale a signed value in range -0x8000..0x7fff for the given field
+ */
+static int pidff_rescale_signed(int i, struct hid_field *field)
+{
+ return i == 0 ? 0 : i >
+ 0 ? i * field->logical_maximum / 0x7fff : i *
+ field->logical_minimum / -0x8000;
+}
+
+static void pidff_set(struct pidff_usage *usage, u16 value)
+{
+ usage->value[0] = pidff_rescale(value, 0xffff, usage->field);
+ debug("calculated from %d to %d", value, usage->value[0]);
+}
+
+static void pidff_set_signed(struct pidff_usage *usage, s16 value)
+{
+ if (usage->field->logical_minimum < 0)
+ usage->value[0] = pidff_rescale_signed(value, usage->field);
+ else {
+ if (value < 0)
+ usage->value[0] =
+ pidff_rescale(-value, 0x8000, usage->field);
+ else
+ usage->value[0] =
+ pidff_rescale(value, 0x7fff, usage->field);
+ }
+ debug("calculated from %d to %d", value, usage->value[0]);
+}
+
+/*
+ * Send envelope report to the device
+ */
+static void pidff_set_envelope_report(struct pidff_device *pidff,
+ struct ff_envelope *envelope)
+{
+ pidff->set_envelope[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+
+ pidff->set_envelope[PID_ATTACK_LEVEL].value[0] =
+ pidff_rescale(envelope->attack_level >
+ 0x7fff ? 0x7fff : envelope->attack_level, 0x7fff,
+ pidff->set_envelope[PID_ATTACK_LEVEL].field);
+ pidff->set_envelope[PID_FADE_LEVEL].value[0] =
+ pidff_rescale(envelope->fade_level >
+ 0x7fff ? 0x7fff : envelope->fade_level, 0x7fff,
+ pidff->set_envelope[PID_FADE_LEVEL].field);
+
+ pidff->set_envelope[PID_ATTACK_TIME].value[0] = envelope->attack_length;
+ pidff->set_envelope[PID_FADE_TIME].value[0] = envelope->fade_length;
+
+ debug("attack %u => %d", envelope->attack_level,
+ pidff->set_envelope[PID_ATTACK_LEVEL].value[0]);
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_ENVELOPE],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if the new envelope differs from old one
+ */
+static int pidff_needs_set_envelope(struct ff_envelope *envelope,
+ struct ff_envelope *old)
+{
+ return envelope->attack_level != old->attack_level ||
+ envelope->fade_level != old->fade_level ||
+ envelope->attack_length != old->attack_length ||
+ envelope->fade_length != old->fade_length;
+}
+
+/*
+ * Send constant force report to the device
+ */
+static void pidff_set_constant_force_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_constant[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff_set_signed(&pidff->set_constant[PID_MAGNITUDE],
+ effect->u.constant.level);
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_CONSTANT],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if the constant parameters have changed between effects
+ */
+static int pidff_needs_set_constant(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ return effect->u.constant.level != old->u.constant.level;
+}
+
+/*
+ * Send set effect report to the device
+ */
+static void pidff_set_effect_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff->set_effect_type->value[0] =
+ pidff->create_new_effect_type->value[0];
+ pidff->set_effect[PID_DURATION].value[0] = effect->replay.length;
+ pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = effect->trigger.button;
+ pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] =
+ effect->trigger.interval;
+ pidff->set_effect[PID_GAIN].value[0] =
+ pidff->set_effect[PID_GAIN].field->logical_maximum;
+ pidff->set_effect[PID_DIRECTION_ENABLE].value[0] = 1;
+ pidff->effect_direction->value[0] =
+ pidff_rescale(effect->direction, 0xffff,
+ pidff->effect_direction);
+ pidff->set_effect[PID_START_DELAY].value[0] = effect->replay.delay;
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_EFFECT],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if the values used in set_effect have changed
+ */
+static int pidff_needs_set_effect(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ return effect->replay.length != old->replay.length ||
+ effect->trigger.interval != old->trigger.interval ||
+ effect->trigger.button != old->trigger.button ||
+ effect->direction != old->direction ||
+ effect->replay.delay != old->replay.delay;
+}
+
+/*
+ * Send periodic effect report to the device
+ */
+static void pidff_set_periodic_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_periodic[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff_set_signed(&pidff->set_periodic[PID_MAGNITUDE],
+ effect->u.periodic.magnitude);
+ pidff_set_signed(&pidff->set_periodic[PID_OFFSET],
+ effect->u.periodic.offset);
+ pidff_set(&pidff->set_periodic[PID_PHASE], effect->u.periodic.phase);
+ pidff->set_periodic[PID_PERIOD].value[0] = effect->u.periodic.period;
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_PERIODIC],
+ USB_DIR_OUT);
+
+}
+
+/*
+ * Test if periodic effect parameters have changed
+ */
+static int pidff_needs_set_periodic(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ return effect->u.periodic.magnitude != old->u.periodic.magnitude ||
+ effect->u.periodic.offset != old->u.periodic.offset ||
+ effect->u.periodic.phase != old->u.periodic.phase ||
+ effect->u.periodic.period != old->u.periodic.period;
+}
+
+/*
+ * Send condition effect reports to the device
+ */
+static void pidff_set_condition_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ int i;
+
+ pidff->set_condition[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+
+ for (i = 0; i < 2; i++) {
+ pidff->set_condition[PID_PARAM_BLOCK_OFFSET].value[0] = i;
+ pidff_set_signed(&pidff->set_condition[PID_CP_OFFSET],
+ effect->u.condition[i].center);
+ pidff_set_signed(&pidff->set_condition[PID_POS_COEFFICIENT],
+ effect->u.condition[i].right_coeff);
+ pidff_set_signed(&pidff->set_condition[PID_NEG_COEFFICIENT],
+ effect->u.condition[i].left_coeff);
+ pidff_set(&pidff->set_condition[PID_POS_SATURATION],
+ effect->u.condition[i].right_saturation);
+ pidff_set(&pidff->set_condition[PID_NEG_SATURATION],
+ effect->u.condition[i].left_saturation);
+ pidff_set(&pidff->set_condition[PID_DEAD_BAND],
+ effect->u.condition[i].deadband);
+ hid_wait_io(pidff->hid);
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_CONDITION],
+ USB_DIR_OUT);
+ }
+}
+
+/*
+ * Test if condition effect parameters have changed
+ */
+static int pidff_needs_set_condition(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ int i;
+ int ret = 0;
+
+ for (i = 0; i < 2; i++) {
+ struct ff_condition_effect *cond = &effect->u.condition[i];
+ struct ff_condition_effect *old_cond = &old->u.condition[i];
+
+ ret |= cond->center != old_cond->center ||
+ cond->right_coeff != old_cond->right_coeff ||
+ cond->left_coeff != old_cond->left_coeff ||
+ cond->right_saturation != old_cond->right_saturation ||
+ cond->left_saturation != old_cond->left_saturation ||
+ cond->deadband != old_cond->deadband;
+ }
+
+ return ret;
+}
+
+/*
+ * Send ramp force report to the device
+ */
+static void pidff_set_ramp_force_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_ramp[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff_set_signed(&pidff->set_ramp[PID_RAMP_START],
+ effect->u.ramp.start_level);
+ pidff_set_signed(&pidff->set_ramp[PID_RAMP_END],
+ effect->u.ramp.end_level);
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_RAMP],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if ramp force parameters have changed
+ */
+static int pidff_needs_set_ramp(struct ff_effect *effect, struct ff_effect *old)
+{
+ return effect->u.ramp.start_level != old->u.ramp.start_level ||
+ effect->u.ramp.end_level != old->u.ramp.end_level;
+}
+
+/*
+ * Send a request for effect upload to the device
+ *
+ * Returns 0 if device reported success, -ENOSPC if the device reported memory
+ * is full. Upon unknown response the function will retry for 60 times, if
+ * still unsuccessful -EIO is returned.
+ */
+static int pidff_request_effect_upload(struct pidff_device *pidff, int efnum)
+{
+ int j;
+
+ pidff->create_new_effect_type->value[0] = efnum;
+ hid_submit_report(pidff->hid, pidff->reports[PID_CREATE_NEW_EFFECT],
+ USB_DIR_OUT);
+ debug("create_new_effect sent, type: %d", efnum);
+
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] = 0;
+ pidff->block_load_status->value[0] = 0;
+ hid_wait_io(pidff->hid);
+
+ for (j = 0; j < 60; j++) {
+ debug("pid_block_load requested");
+ hid_submit_report(pidff->hid, pidff->reports[PID_BLOCK_LOAD],
+ USB_DIR_IN);
+ hid_wait_io(pidff->hid);
+ if (pidff->block_load_status->value[0] ==
+ pidff->status_id[PID_BLOCK_LOAD_SUCCESS]) {
+ debug("device reported free memory: %d bytes",
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
+ return 0;
+ }
+ if (pidff->block_load_status->value[0] ==
+ pidff->status_id[PID_BLOCK_LOAD_FULL]) {
+ debug("not enough memory free: %d bytes",
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
+ return -ENOSPC;
+ }
+ }
+ printk(KERN_ERR "hid-pidff: pid_block_load failed 60 times\n");
+ return -EIO;
+}
+
+/*
+ * Play the effect with PID id n times
+ */
+static void pidff_playback_pid(struct pidff_device *pidff, int pid_id, int n)
+{
+ pidff->effect_operation[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
+
+ if (n == 0) {
+ pidff->effect_operation_status->value[0] =
+ pidff->operation_id[PID_EFFECT_STOP];
+ } else {
+ pidff->effect_operation_status->value[0] =
+ pidff->operation_id[PID_EFFECT_START];
+ pidff->effect_operation[PID_LOOP_COUNT].value[0] = n;
+ }
+
+ hid_wait_io(pidff->hid);
+ hid_submit_report(pidff->hid, pidff->reports[PID_EFFECT_OPERATION],
+ USB_DIR_OUT);
+}
+
+/**
+ * Play the effect with effect id @effect_id for @value times
+ */
+static int pidff_playback(struct input_dev *dev, int effect_id, int value)
+{
+ struct pidff_device *pidff = dev->ff->private;
+
+ pidff_playback_pid(pidff, pidff->pid_id[effect_id], value);
+
+ return 0;
+}
+
+/*
+ * Erase effect with PID id
+ */
+static void pidff_erase_pid(struct pidff_device *pidff, int pid_id)
+{
+ pidff->block_free[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
+ hid_submit_report(pidff->hid, pidff->reports[PID_BLOCK_FREE],
+ USB_DIR_OUT);
+}
+
+/*
+ * Stop and erase effect with effect_id
+ */
+static int pidff_erase_effect(struct input_dev *dev, int effect_id)
+{
+ struct pidff_device *pidff = dev->ff->private;
+ int pid_id = pidff->pid_id[effect_id];
+
+ debug("starting to erase %d/%d", effect_id, pidff->pid_id[effect_id]);
+ pidff_playback_pid(pidff, pid_id, 0);
+ pidff_erase_pid(pidff, pid_id);
+
+ return 0;
+}
+
+/*
+ * Effect upload handler
+ */
+static int pidff_upload_effect(struct input_dev *dev, struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ struct pidff_device *pidff = dev->ff->private;
+ int type_id;
+ int error;
+
+ switch (effect->type) {
+ case FF_CONSTANT:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_CONSTANT]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_constant(effect, old))
+ pidff_set_constant_force_report(pidff, effect);
+ if (!old ||
+ pidff_needs_set_envelope(&effect->u.constant.envelope,
+ &old->u.constant.envelope))
+ pidff_set_envelope_report(pidff,
+ &effect->u.constant.envelope);
+ break;
+
+ case FF_PERIODIC:
+ if (!old) {
+ switch (effect->u.periodic.waveform) {
+ case FF_SQUARE:
+ type_id = PID_SQUARE;
+ break;
+ case FF_TRIANGLE:
+ type_id = PID_TRIANGLE;
+ break;
+ case FF_SINE:
+ type_id = PID_SINE;
+ break;
+ case FF_SAW_UP:
+ type_id = PID_SAW_UP;
+ break;
+ case FF_SAW_DOWN:
+ type_id = PID_SAW_DOWN;
+ break;
+ default:
+ printk(KERN_ERR
+ "hid-pidff: invalid waveform\n");
+ return -EINVAL;
+ }
+
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[type_id]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_periodic(effect, old))
+ pidff_set_periodic_report(pidff, effect);
+ if (!old ||
+ pidff_needs_set_envelope(&effect->u.periodic.envelope,
+ &old->u.periodic.envelope))
+ pidff_set_envelope_report(pidff,
+ &effect->u.periodic.envelope);
+ break;
+
+ case FF_RAMP:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_RAMP]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_ramp(effect, old))
+ pidff_set_ramp_force_report(pidff, effect);
+ if (!old ||
+ pidff_needs_set_envelope(&effect->u.ramp.envelope,
+ &old->u.ramp.envelope))
+ pidff_set_envelope_report(pidff,
+ &effect->u.ramp.envelope);
+ break;
+
+ case FF_SPRING:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_SPRING]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ case FF_FRICTION:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_FRICTION]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ case FF_DAMPER:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_DAMPER]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ case FF_INERTIA:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_INERTIA]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ default:
+ printk(KERN_ERR "hid-pidff: invalid type\n");
+ return -EINVAL;
+ }
+
+ if (!old)
+ pidff->pid_id[effect->id] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+
+ debug("uploaded");
+
+ return 0;
+}
+
+/*
+ * set_gain() handler
+ */
+static void pidff_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct pidff_device *pidff = dev->ff->private;
+
+ pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], gain);
+ hid_submit_report(pidff->hid, pidff->reports[PID_DEVICE_GAIN],
+ USB_DIR_OUT);
+}
+
+static void pidff_autocenter(struct pidff_device *pidff, u16 magnitude)
+{
+ struct hid_field *field =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field;
+
+ if (!magnitude) {
+ pidff_playback_pid(pidff, field->logical_minimum, 0);
+ return;
+ }
+
+ pidff_playback_pid(pidff, field->logical_minimum, 1);
+
+ pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum;
+ pidff->set_effect_type->value[0] = pidff->type_id[PID_SPRING];
+ pidff->set_effect[PID_DURATION].value[0] = 0;
+ pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = 0;
+ pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] = 0;
+ pidff_set(&pidff->set_effect[PID_GAIN], magnitude);
+ pidff->set_effect[PID_START_DELAY].value[0] = 0;
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_EFFECT],
+ USB_DIR_OUT);
+}
+
+/*
+ * pidff_set_autocenter() handler
+ */
+static void pidff_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ struct pidff_device *pidff = dev->ff->private;
+
+ pidff_autocenter(pidff, magnitude);
+}
+
+/*
+ * Find fields from a report and fill a pidff_usage
+ */
+static int pidff_find_fields(struct pidff_usage *usage, const u8 *table,
+ struct hid_report *report, int count, int strict)
+{
+ int i, j, k, found;
+
+ for (k = 0; k < count; k++) {
+ found = 0;
+ for (i = 0; i < report->maxfield; i++) {
+ if (report->field[i]->maxusage !=
+ report->field[i]->report_count) {
+ debug("maxusage and report_count do not match, "
+ "skipping");
+ continue;
+ }
+ for (j = 0; j < report->field[i]->maxusage; j++) {
+ if (report->field[i]->usage[j].hid ==
+ (HID_UP_PID | table[k])) {
+ debug("found %d at %d->%d", k, i, j);
+ usage[k].field = report->field[i];
+ usage[k].value =
+ &report->field[i]->value[j];
+ found = 1;
+ break;
+ }
+ }
+ if (found)
+ break;
+ }
+ if (!found && strict) {
+ debug("failed to locate %d", k);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Return index into pidff_reports for the given usage
+ */
+static int pidff_check_usage(int usage)
+{
+ int i;
+
+ for (i = 0; i < sizeof(pidff_reports); i++)
+ if (usage == (HID_UP_PID | pidff_reports[i]))
+ return i;
+
+ return -1;
+}
+
+/*
+ * Find the reports and fill pidff->reports[]
+ * report_type specifies either OUTPUT or FEATURE reports
+ */
+static void pidff_find_reports(struct hid_device *hid, int report_type,
+ struct pidff_device *pidff)
+{
+ struct hid_report *report;
+ int i, ret;
+
+ list_for_each_entry(report,
+ &hid->report_enum[report_type].report_list, list) {
+ if (report->maxfield < 1)
+ continue;
+ ret = pidff_check_usage(report->field[0]->logical);
+ if (ret != -1) {
+ debug("found usage 0x%02x from field->logical",
+ pidff_reports[ret]);
+ pidff->reports[ret] = report;
+ continue;
+ }
+
+ /*
+ * Sometimes logical collections are stacked to indicate
+ * different usages for the report and the field, in which
+ * case we want the usage of the parent. However, Linux HID
+ * implementation hides this fact, so we have to dig it up
+ * ourselves
+ */
+ i = report->field[0]->usage[0].collection_index;
+ if (i <= 0 ||
+ hid->collection[i - 1].type != HID_COLLECTION_LOGICAL)
+ continue;
+ ret = pidff_check_usage(hid->collection[i - 1].usage);
+ if (ret != -1 && !pidff->reports[ret]) {
+ debug("found usage 0x%02x from collection array",
+ pidff_reports[ret]);
+ pidff->reports[ret] = report;
+ }
+ }
+}
+
+/*
+ * Test if the required reports have been found
+ */
+static int pidff_reports_ok(struct pidff_device *pidff)
+{
+ int i;
+
+ for (i = 0; i <= PID_REQUIRED_REPORTS; i++) {
+ if (!pidff->reports[i]) {
+ debug("%d missing", i);
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+/*
+ * Find a field with a specific usage within a report
+ */
+static struct hid_field *pidff_find_special_field(struct hid_report *report,
+ int usage, int enforce_min)
+{
+ int i;
+
+ for (i = 0; i < report->maxfield; i++) {
+ if (report->field[i]->logical == (HID_UP_PID | usage) &&
+ report->field[i]->report_count > 0) {
+ if (!enforce_min ||
+ report->field[i]->logical_minimum == 1)
+ return report->field[i];
+ else {
+ printk(KERN_ERR "hid-pidff: logical_minimum "
+ "is not 1 as it should be\n");
+ return NULL;
+ }
+ }
+ }
+ return NULL;
+}
+
+/*
+ * Fill a pidff->*_id struct table
+ */
+static int pidff_find_special_keys(int *keys, struct hid_field *fld,
+ const u8 *usagetable, int count)
+{
+
+ int i, j;
+ int found = 0;
+
+ for (i = 0; i < count; i++) {
+ for (j = 0; j < fld->maxusage; j++) {
+ if (fld->usage[j].hid == (HID_UP_PID | usagetable[i])) {
+ keys[i] = j + 1;
+ found++;
+ break;
+ }
+ }
+ }
+ return found;
+}
+
+#define PIDFF_FIND_SPECIAL_KEYS(keys, field, name) \
+ pidff_find_special_keys(pidff->keys, pidff->field, pidff_ ## name, \
+ sizeof(pidff_ ## name))
+
+/*
+ * Find and check the special fields
+ */
+static int pidff_find_special_fields(struct pidff_device *pidff)
+{
+ debug("finding special fields");
+
+ pidff->create_new_effect_type =
+ pidff_find_special_field(pidff->reports[PID_CREATE_NEW_EFFECT],
+ 0x25, 1);
+ pidff->set_effect_type =
+ pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
+ 0x25, 1);
+ pidff->effect_direction =
+ pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
+ 0x57, 0);
+ pidff->device_control =
+ pidff_find_special_field(pidff->reports[PID_DEVICE_CONTROL],
+ 0x96, 1);
+ pidff->block_load_status =
+ pidff_find_special_field(pidff->reports[PID_BLOCK_LOAD],
+ 0x8b, 1);
+ pidff->effect_operation_status =
+ pidff_find_special_field(pidff->reports[PID_EFFECT_OPERATION],
+ 0x78, 1);
+
+ debug("search done");
+
+ if (!pidff->create_new_effect_type || !pidff->set_effect_type) {
+ printk(KERN_ERR "hid-pidff: effect lists not found\n");
+ return -1;
+ }
+
+ if (!pidff->effect_direction) {
+ printk(KERN_ERR "hid-pidff: direction field not found\n");
+ return -1;
+ }
+
+ if (!pidff->device_control) {
+ printk(KERN_ERR "hid-pidff: device control field not found\n");
+ return -1;
+ }
+
+ if (!pidff->block_load_status) {
+ printk(KERN_ERR
+ "hid-pidff: block load status field not found\n");
+ return -1;
+ }
+
+ if (!pidff->effect_operation_status) {
+ printk(KERN_ERR
+ "hid-pidff: effect operation field not found\n");
+ return -1;
+ }
+
+ pidff_find_special_keys(pidff->control_id, pidff->device_control,
+ pidff_device_control,
+ sizeof(pidff_device_control));
+
+ PIDFF_FIND_SPECIAL_KEYS(control_id, device_control, device_control);
+
+ if (!PIDFF_FIND_SPECIAL_KEYS(type_id, create_new_effect_type,
+ effect_types)) {
+ printk(KERN_ERR "hid-pidff: no effect types found\n");
+ return -1;
+ }
+
+ if (PIDFF_FIND_SPECIAL_KEYS(status_id, block_load_status,
+ block_load_status) !=
+ sizeof(pidff_block_load_status)) {
+ printk(KERN_ERR
+ "hidpidff: block load status identifiers not found\n");
+ return -1;
+ }
+
+ if (PIDFF_FIND_SPECIAL_KEYS(operation_id, effect_operation_status,
+ effect_operation_status) !=
+ sizeof(pidff_effect_operation_status)) {
+ printk(KERN_ERR
+ "hidpidff: effect operation identifiers not found\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * Find the implemented effect types
+ */
+static int pidff_find_effects(struct pidff_device *pidff,
+ struct input_dev *dev)
+{
+ int i;
+
+ for (i = 0; i < sizeof(pidff_effect_types); i++) {
+ int pidff_type = pidff->type_id[i];
+ if (pidff->set_effect_type->usage[pidff_type].hid !=
+ pidff->create_new_effect_type->usage[pidff_type].hid) {
+ printk(KERN_ERR "hid-pidff: "
+ "effect type number %d is invalid\n", i);
+ return -1;
+ }
+ }
+
+ if (pidff->type_id[PID_CONSTANT])
+ set_bit(FF_CONSTANT, dev->ffbit);
+ if (pidff->type_id[PID_RAMP])
+ set_bit(FF_RAMP, dev->ffbit);
+ if (pidff->type_id[PID_SQUARE]) {
+ set_bit(FF_SQUARE, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SINE]) {
+ set_bit(FF_SINE, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_TRIANGLE]) {
+ set_bit(FF_TRIANGLE, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SAW_UP]) {
+ set_bit(FF_SAW_UP, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SAW_DOWN]) {
+ set_bit(FF_SAW_DOWN, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SPRING])
+ set_bit(FF_SPRING, dev->ffbit);
+ if (pidff->type_id[PID_DAMPER])
+ set_bit(FF_DAMPER, dev->ffbit);
+ if (pidff->type_id[PID_INERTIA])
+ set_bit(FF_INERTIA, dev->ffbit);
+ if (pidff->type_id[PID_FRICTION])
+ set_bit(FF_FRICTION, dev->ffbit);
+
+ return 0;
+
+}
+
+#define PIDFF_FIND_FIELDS(name, report, strict) \
+ pidff_find_fields(pidff->name, pidff_ ## name, \
+ pidff->reports[report], \
+ sizeof(pidff_ ## name), strict)
+
+/*
+ * Fill and check the pidff_usages
+ */
+static int pidff_init_fields(struct pidff_device *pidff, struct input_dev *dev)
+{
+ int envelope_ok = 0;
+
+ if (PIDFF_FIND_FIELDS(set_effect, PID_SET_EFFECT, 1)) {
+ printk(KERN_ERR
+ "hid-pidff: unknown set_effect report layout\n");
+ return -ENODEV;
+ }
+
+ PIDFF_FIND_FIELDS(block_load, PID_BLOCK_LOAD, 0);
+ if (!pidff->block_load[PID_EFFECT_BLOCK_INDEX].value) {
+ printk(KERN_ERR
+ "hid-pidff: unknown pid_block_load report layout\n");
+ return -ENODEV;
+ }
+
+ if (PIDFF_FIND_FIELDS(effect_operation, PID_EFFECT_OPERATION, 1)) {
+ printk(KERN_ERR
+ "hid-pidff: unknown effect_operation report layout\n");
+ return -ENODEV;
+ }
+
+ if (PIDFF_FIND_FIELDS(block_free, PID_BLOCK_FREE, 1)) {
+ printk(KERN_ERR
+ "hid-pidff: unknown pid_block_free report layout\n");
+ return -ENODEV;
+ }
+
+ if (!PIDFF_FIND_FIELDS(set_envelope, PID_SET_ENVELOPE, 1))
+ envelope_ok = 1;
+
+ if (pidff_find_special_fields(pidff) || pidff_find_effects(pidff, dev))
+ return -ENODEV;
+
+ if (!envelope_ok) {
+ if (test_and_clear_bit(FF_CONSTANT, dev->ffbit))
+ printk(KERN_WARNING "hid-pidff: "
+ "has constant effect but no envelope\n");
+ if (test_and_clear_bit(FF_RAMP, dev->ffbit))
+ printk(KERN_WARNING "hid-pidff: "
+ "has ramp effect but no envelope\n");
+
+ if (test_and_clear_bit(FF_PERIODIC, dev->ffbit))
+ printk(KERN_WARNING "hid-pidff: "
+ "has periodic effect but no envelope\n");
+ }
+
+ if (test_bit(FF_CONSTANT, dev->ffbit) &&
+ PIDFF_FIND_FIELDS(set_constant, PID_SET_CONSTANT, 1)) {
+ printk(KERN_WARNING
+ "hid-pidff: unknown constant effect layout\n");
+ clear_bit(FF_CONSTANT, dev->ffbit);
+ }
+
+ if (test_bit(FF_RAMP, dev->ffbit) &&
+ PIDFF_FIND_FIELDS(set_ramp, PID_SET_RAMP, 1)) {
+ printk(KERN_WARNING "hid-pidff: unknown ramp effect layout\n");
+ clear_bit(FF_RAMP, dev->ffbit);
+ }
+
+ if ((test_bit(FF_SPRING, dev->ffbit) ||
+ test_bit(FF_DAMPER, dev->ffbit) ||
+ test_bit(FF_FRICTION, dev->ffbit) ||
+ test_bit(FF_INERTIA, dev->ffbit)) &&
+ PIDFF_FIND_FIELDS(set_condition, PID_SET_CONDITION, 1)) {
+ printk(KERN_WARNING
+ "hid-pidff: unknown condition effect layout\n");
+ clear_bit(FF_SPRING, dev->ffbit);
+ clear_bit(FF_DAMPER, dev->ffbit);
+ clear_bit(FF_FRICTION, dev->ffbit);
+ clear_bit(FF_INERTIA, dev->ffbit);
+ }
+
+ if (test_bit(FF_PERIODIC, dev->ffbit) &&
+ PIDFF_FIND_FIELDS(set_periodic, PID_SET_PERIODIC, 1)) {
+ printk(KERN_WARNING
+ "hid-pidff: unknown periodic effect layout\n");
+ clear_bit(FF_PERIODIC, dev->ffbit);
+ }
+
+ PIDFF_FIND_FIELDS(pool, PID_POOL, 0);
+
+ if (!PIDFF_FIND_FIELDS(device_gain, PID_DEVICE_GAIN, 1))
+ set_bit(FF_GAIN, dev->ffbit);
+
+ return 0;
+}
+
+/*
+ * Reset the device
+ */
+static void pidff_reset(struct pidff_device *pidff)
+{
+ struct hid_device *hid = pidff->hid;
+ int i = 0;
+
+ pidff->device_control->value[0] = pidff->control_id[PID_RESET];
+ /* We reset twice as sometimes hid_wait_io isn't waiting long enough */
+ hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
+ hid_wait_io(hid);
+ hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
+ hid_wait_io(hid);
+
+ pidff->device_control->value[0] =
+ pidff->control_id[PID_ENABLE_ACTUATORS];
+ hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
+ hid_wait_io(hid);
+
+ /* pool report is sometimes messed up, refetch it */
+ hid_submit_report(hid, pidff->reports[PID_POOL], USB_DIR_IN);
+ hid_wait_io(hid);
+
+ if (pidff->pool[PID_SIMULTANEOUS_MAX].value) {
+ int sim_effects = pidff->pool[PID_SIMULTANEOUS_MAX].value[0];
+ while (sim_effects < 2) {
+ if (i++ > 20) {
+ printk(KERN_WARNING "hid-pidff: device reports "
+ "%d simultaneous effects\n",
+ sim_effects);
+ break;
+ }
+ debug("pid_pool requested again");
+ hid_submit_report(hid, pidff->reports[PID_POOL],
+ USB_DIR_IN);
+ hid_wait_io(hid);
+ }
+ }
+}
+
+/*
+ * Test if autocenter modification is using the supported method
+ */
+static int pidff_check_autocenter(struct pidff_device *pidff,
+ struct input_dev *dev)
+{
+ int error;
+
+ /*
+ * Let's find out if autocenter modification is supported
+ * Specification doesn't specify anything, so we request an
+ * effect upload and cancel it immediately. If the approved
+ * effect id was one above the minimum, then we assume the first
+ * effect id is a built-in spring type effect used for autocenter
+ */
+
+ error = pidff_request_effect_upload(pidff, 1);
+ if (error) {
+ printk(KERN_ERR "hid-pidff: upload request failed\n");
+ return error;
+ }
+
+ if (pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] ==
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum + 1) {
+ pidff_autocenter(pidff, 0xffff);
+ set_bit(FF_AUTOCENTER, dev->ffbit);
+ } else {
+ printk(KERN_NOTICE "hid-pidff: "
+ "device has unknown autocenter control method\n");
+ }
+
+ pidff_erase_pid(pidff,
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0]);
+
+ return 0;
+
+}
+
+/*
+ * Check if the device is PID and initialize it
+ */
+int hid_pidff_init(struct hid_device *hid)
+{
+ struct pidff_device *pidff;
+ struct hid_input *hidinput = list_entry(hid->inputs.next,
+ struct hid_input, list);
+ struct input_dev *dev = hidinput->input;
+ struct ff_device *ff;
+ int max_effects;
+ int error;
+
+ debug("starting pid init");
+
+ if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {
+ debug("not a PID device, no output report");
+ return -ENODEV;
+ }
+
+ pidff = kzalloc(sizeof(*pidff), GFP_KERNEL);
+ if (!pidff)
+ return -ENOMEM;
+
+ pidff->hid = hid;
+
+ pidff_find_reports(hid, HID_OUTPUT_REPORT, pidff);
+ pidff_find_reports(hid, HID_FEATURE_REPORT, pidff);
+
+ if (!pidff_reports_ok(pidff)) {
+ debug("reports not ok, aborting");
+ error = -ENODEV;
+ goto fail;
+ }
+
+ error = pidff_init_fields(pidff, dev);
+ if (error)
+ goto fail;
+
+ pidff_reset(pidff);
+
+ if (test_bit(FF_GAIN, dev->ffbit)) {
+ pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], 0xffff);
+ hid_submit_report(pidff->hid, pidff->reports[PID_DEVICE_GAIN],
+ USB_DIR_OUT);
+ }
+
+ error = pidff_check_autocenter(pidff, dev);
+ if (error)
+ goto fail;
+
+ max_effects =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_maximum -
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum +
+ 1;
+ debug("max effects is %d", max_effects);
+
+ if (max_effects > PID_EFFECTS_MAX)
+ max_effects = PID_EFFECTS_MAX;
+
+ if (pidff->pool[PID_SIMULTANEOUS_MAX].value)
+ debug("max simultaneous effects is %d",
+ pidff->pool[PID_SIMULTANEOUS_MAX].value[0]);
+
+ if (pidff->pool[PID_RAM_POOL_SIZE].value)
+ debug("device memory size is %d bytes",
+ pidff->pool[PID_RAM_POOL_SIZE].value[0]);
+
+ if (pidff->pool[PID_DEVICE_MANAGED_POOL].value &&
+ pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) {
+ printk(KERN_NOTICE "hid-pidff: "
+ "device does not support device managed pool\n");
+ goto fail;
+ }
+
+ error = input_ff_create(dev, max_effects);
+ if (error)
+ goto fail;
+
+ ff = dev->ff;
+ ff->private = pidff;
+ ff->upload = pidff_upload_effect;
+ ff->erase = pidff_erase_effect;
+ ff->set_gain = pidff_set_gain;
+ ff->set_autocenter = pidff_set_autocenter;
+ ff->playback = pidff_playback;
+
+ printk(KERN_INFO "Force feedback for USB HID PID devices by "
+ "Anssi Hannula <anssi.hannula@gmail.com>\n");
+
+ return 0;
+
+ fail:
+ kfree(pidff);
+ return error;
+}
diff --git a/drivers/usb/input/hid-tmff.c b/drivers/usb/input/hid-tmff.c
index 534425c69c0..2d5be4c318a 100644
--- a/drivers/usb/input/hid-tmff.c
+++ b/drivers/usb/input/hid-tmff.c
@@ -28,97 +28,65 @@
*/
#include <linux/input.h>
-#include <linux/sched.h>
#undef DEBUG
#include <linux/usb.h>
-#include <linux/circ_buf.h>
-
#include "hid.h"
-#include "fixp-arith.h"
/* Usages for thrustmaster devices I know about */
#define THRUSTMASTER_USAGE_RUMBLE_LR (HID_UP_GENDESK | 0xbb)
-#define DELAY_CALC(t,delay) ((t) + (delay)*HZ/1000)
-
-/* Effect status */
-#define EFFECT_STARTED 0 /* Effect is going to play after some time */
-#define EFFECT_PLAYING 1 /* Effect is playing */
-#define EFFECT_USED 2
-
-/* For tmff_device::flags */
-#define DEVICE_CLOSING 0 /* The driver is being unitialised */
-
-/* Check that the current process can access an effect */
-#define CHECK_OWNERSHIP(effect) (current->pid == 0 \
- || effect.owner == current->pid)
-
-#define TMFF_CHECK_ID(id) ((id) >= 0 && (id) < TMFF_EFFECTS)
-#define TMFF_CHECK_OWNERSHIP(i, l) \
- (test_bit(EFFECT_USED, l->effects[i].flags) \
- && CHECK_OWNERSHIP(l->effects[i]))
-
-#define TMFF_EFFECTS 8
-
-struct tmff_effect {
- pid_t owner;
-
- struct ff_effect effect;
-
- unsigned long flags[1];
- unsigned int count; /* Number of times left to play */
-
- unsigned long play_at; /* When the effect starts to play */
- unsigned long stop_at; /* When the effect ends */
-};
struct tmff_device {
- struct hid_device *hid;
-
struct hid_report *report;
-
struct hid_field *rumble;
+};
- unsigned int effects_playing;
- struct tmff_effect effects[TMFF_EFFECTS];
- spinlock_t lock; /* device-level lock. Having locks on
- a per-effect basis could be nice, but
- isn't really necessary */
+/* Changes values from 0 to 0xffff into values from minimum to maximum */
+static inline int hid_tmff_scale(unsigned int in, int minimum, int maximum)
+{
+ int ret;
- unsigned long flags[1]; /* Contains various information about the
- state of the driver for this device */
+ ret = (in * (maximum - minimum) / 0xffff) + minimum;
+ if (ret < minimum)
+ return minimum;
+ if (ret > maximum)
+ return maximum;
+ return ret;
+}
- struct timer_list timer;
-};
+static int hid_tmff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+ struct hid_device *hid = dev->private;
+ struct tmff_device *tmff = data;
+ int left, right; /* Rumbling */
-/* Callbacks */
-static void hid_tmff_exit(struct hid_device *hid);
-static int hid_tmff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value);
-static int hid_tmff_flush(struct input_dev *input, struct file *file);
-static int hid_tmff_upload_effect(struct input_dev *input,
- struct ff_effect *effect);
-static int hid_tmff_erase(struct input_dev *input, int id);
+ left = hid_tmff_scale(effect->u.rumble.weak_magnitude,
+ tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
+ right = hid_tmff_scale(effect->u.rumble.strong_magnitude,
+ tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
-/* Local functions */
-static void hid_tmff_recalculate_timer(struct tmff_device *tmff);
-static void hid_tmff_timer(unsigned long timer_data);
+ tmff->rumble->value[0] = left;
+ tmff->rumble->value[1] = right;
+ dbg("(left,right)=(%08x, %08x)", left, right);
+ hid_submit_report(hid, tmff->report, USB_DIR_OUT);
+
+ return 0;
+}
int hid_tmff_init(struct hid_device *hid)
{
- struct tmff_device *private;
+ struct tmff_device *tmff;
struct list_head *pos;
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct input_dev *input_dev = hidinput->input;
+ int error;
- private = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
- if (!private)
+ tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
+ if (!tmff)
return -ENOMEM;
- hid->ff_private = private;
-
/* Find the report to use */
__list_for_each(pos, &hid->report_enum[HID_OUTPUT_REPORT].report_list) {
struct hid_report *report = (struct hid_report *)pos;
@@ -142,18 +110,18 @@ int hid_tmff_init(struct hid_device *hid)
continue;
}
- if (private->report && private->report != report) {
+ if (tmff->report && tmff->report != report) {
warn("ignoring THRUSTMASTER_USAGE_RUMBLE_LR in other report");
continue;
}
- if (private->rumble && private->rumble != field) {
+ if (tmff->rumble && tmff->rumble != field) {
warn("ignoring duplicate THRUSTMASTER_USAGE_RUMBLE_LR");
continue;
}
- private->report = report;
- private->rumble = field;
+ tmff->report = report;
+ tmff->rumble = field;
set_bit(FF_RUMBLE, input_dev->ffbit);
break;
@@ -162,302 +130,17 @@ int hid_tmff_init(struct hid_device *hid)
warn("ignoring unknown output usage %08x", field->usage[0].hid);
continue;
}
-
- /* Fallthrough to here only when a valid usage is found */
- input_dev->upload_effect = hid_tmff_upload_effect;
- input_dev->flush = hid_tmff_flush;
-
- set_bit(EV_FF, input_dev->evbit);
- input_dev->ff_effects_max = TMFF_EFFECTS;
}
}
- private->hid = hid;
-
- spin_lock_init(&private->lock);
- init_timer(&private->timer);
- private->timer.data = (unsigned long)private;
- private->timer.function = hid_tmff_timer;
-
- /* Event and exit callbacks */
- hid->ff_exit = hid_tmff_exit;
- hid->ff_event = hid_tmff_event;
-
- info("Force feedback for ThrustMaster rumble pad devices by Zinx Verituse <zinx@epicsol.org>");
-
- return 0;
-}
-
-static void hid_tmff_exit(struct hid_device *hid)
-{
- struct tmff_device *tmff = hid->ff_private;
- unsigned long flags;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- set_bit(DEVICE_CLOSING, tmff->flags);
- del_timer_sync(&tmff->timer);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-
- kfree(tmff);
-}
-
-static int hid_tmff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value)
-{
- struct tmff_device *tmff = hid->ff_private;
- struct tmff_effect *effect = &tmff->effects[code];
- unsigned long flags;
-
- if (type != EV_FF)
- return -EINVAL;
- if (!TMFF_CHECK_ID(code))
- return -EINVAL;
- if (!TMFF_CHECK_OWNERSHIP(code, tmff))
- return -EACCES;
- if (value < 0)
- return -EINVAL;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- if (value > 0) {
- set_bit(EFFECT_STARTED, effect->flags);
- clear_bit(EFFECT_PLAYING, effect->flags);
- effect->count = value;
- effect->play_at = DELAY_CALC(jiffies, effect->effect.replay.delay);
- } else {
- clear_bit(EFFECT_STARTED, effect->flags);
- clear_bit(EFFECT_PLAYING, effect->flags);
- }
-
- hid_tmff_recalculate_timer(tmff);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-
- return 0;
-
-}
-
-/* Erase all effects this process owns */
-
-static int hid_tmff_flush(struct input_dev *dev, struct file *file)
-{
- struct hid_device *hid = dev->private;
- struct tmff_device *tmff = hid->ff_private;
- int i;
-
- for (i=0; i<dev->ff_effects_max; ++i)
-
- /* NOTE: no need to lock here. The only times EFFECT_USED is
- modified is when effects are uploaded or when an effect is
- erased. But a process cannot close its dev/input/eventX fd
- and perform ioctls on the same fd all at the same time */
-
- if (current->pid == tmff->effects[i].owner
- && test_bit(EFFECT_USED, tmff->effects[i].flags))
- if (hid_tmff_erase(dev, i))
- warn("erase effect %d failed", i);
-
-
- return 0;
-}
-
-static int hid_tmff_erase(struct input_dev *dev, int id)
-{
- struct hid_device *hid = dev->private;
- struct tmff_device *tmff = hid->ff_private;
- unsigned long flags;
-
- if (!TMFF_CHECK_ID(id))
- return -EINVAL;
- if (!TMFF_CHECK_OWNERSHIP(id, tmff))
- return -EACCES;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- tmff->effects[id].flags[0] = 0;
- hid_tmff_recalculate_timer(tmff);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-
- return 0;
-}
-
-static int hid_tmff_upload_effect(struct input_dev *input,
- struct ff_effect *effect)
-{
- struct hid_device *hid = input->private;
- struct tmff_device *tmff = hid->ff_private;
- int id;
- unsigned long flags;
-
- if (!test_bit(effect->type, input->ffbit))
- return -EINVAL;
- if (effect->id != -1 && !TMFF_CHECK_ID(effect->id))
- return -EINVAL;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- if (effect->id == -1) {
- /* Find a free effect */
- for (id = 0; id < TMFF_EFFECTS && test_bit(EFFECT_USED, tmff->effects[id].flags); ++id);
-
- if (id >= TMFF_EFFECTS) {
- spin_unlock_irqrestore(&tmff->lock, flags);
- return -ENOSPC;
- }
-
- effect->id = id;
- tmff->effects[id].owner = current->pid;
- tmff->effects[id].flags[0] = 0;
- set_bit(EFFECT_USED, tmff->effects[id].flags);
-
- } else {
- /* Re-uploading an owned effect, to change parameters */
- id = effect->id;
- clear_bit(EFFECT_PLAYING, tmff->effects[id].flags);
+ error = input_ff_create_memless(input_dev, tmff, hid_tmff_play);
+ if (error) {
+ kfree(tmff);
+ return error;
}
- tmff->effects[id].effect = *effect;
-
- hid_tmff_recalculate_timer(tmff);
+ info("Force feedback for ThrustMaster rumble pad devices by Zinx Verituse <zinx@epicsol.org>");
- spin_unlock_irqrestore(&tmff->lock, flags);
return 0;
}
-/* Start the timer for the next start/stop/delay */
-/* Always call this while tmff->lock is locked */
-
-static void hid_tmff_recalculate_timer(struct tmff_device *tmff)
-{
- int i;
- int events = 0;
- unsigned long next_time;
-
- next_time = 0; /* Shut up compiler's incorrect warning */
-
- /* Find the next change in an effect's status */
- for (i = 0; i < TMFF_EFFECTS; ++i) {
- struct tmff_effect *effect = &tmff->effects[i];
- unsigned long play_time;
-
- if (!test_bit(EFFECT_STARTED, effect->flags))
- continue;
-
- effect->stop_at = DELAY_CALC(effect->play_at, effect->effect.replay.length);
-
- if (!test_bit(EFFECT_PLAYING, effect->flags))
- play_time = effect->play_at;
- else
- play_time = effect->stop_at;
-
- events++;
-
- if (time_after(jiffies, play_time))
- play_time = jiffies;
-
- if (events == 1)
- next_time = play_time;
- else {
- if (time_after(next_time, play_time))
- next_time = play_time;
- }
- }
-
- if (!events && tmff->effects_playing) {
- /* Treat all effects turning off as an event */
- events = 1;
- next_time = jiffies;
- }
-
- if (!events) {
- /* No events, no time, no need for a timer. */
- del_timer_sync(&tmff->timer);
- return;
- }
-
- mod_timer(&tmff->timer, next_time);
-}
-
-/* Changes values from 0 to 0xffff into values from minimum to maximum */
-static inline int hid_tmff_scale(unsigned int in, int minimum, int maximum)
-{
- int ret;
-
- ret = (in * (maximum - minimum) / 0xffff) + minimum;
- if (ret < minimum)
- return minimum;
- if (ret > maximum)
- return maximum;
- return ret;
-}
-
-static void hid_tmff_timer(unsigned long timer_data)
-{
- struct tmff_device *tmff = (struct tmff_device *) timer_data;
- struct hid_device *hid = tmff->hid;
- unsigned long flags;
- int left = 0, right = 0; /* Rumbling */
- int i;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- tmff->effects_playing = 0;
-
- for (i = 0; i < TMFF_EFFECTS; ++i) {
- struct tmff_effect *effect = &tmff->effects[i];
-
- if (!test_bit(EFFECT_STARTED, effect->flags))
- continue;
-
- if (!time_after(jiffies, effect->play_at))
- continue;
-
- if (time_after(jiffies, effect->stop_at)) {
-
- dbg("Finished playing once %d", i);
- clear_bit(EFFECT_PLAYING, effect->flags);
-
- if (--effect->count <= 0) {
- dbg("Stopped %d", i);
- clear_bit(EFFECT_STARTED, effect->flags);
- continue;
- } else {
- dbg("Start again %d", i);
- effect->play_at = DELAY_CALC(jiffies, effect->effect.replay.delay);
- continue;
- }
- }
-
- ++tmff->effects_playing;
-
- set_bit(EFFECT_PLAYING, effect->flags);
-
- switch (effect->effect.type) {
- case FF_RUMBLE:
- right += effect->effect.u.rumble.strong_magnitude;
- left += effect->effect.u.rumble.weak_magnitude;
- break;
- default:
- BUG();
- break;
- }
- }
-
- left = hid_tmff_scale(left, tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
- right = hid_tmff_scale(right, tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
-
- if (left != tmff->rumble->value[0] || right != tmff->rumble->value[1]) {
- tmff->rumble->value[0] = left;
- tmff->rumble->value[1] = right;
- dbg("(left,right)=(%08x, %08x)", left, right);
- hid_submit_report(hid, tmff->report, USB_DIR_OUT);
- }
-
- if (!test_bit(DEVICE_CLOSING, tmff->flags))
- hid_tmff_recalculate_timer(tmff);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-}
diff --git a/drivers/usb/input/hid-zpff.c b/drivers/usb/input/hid-zpff.c
new file mode 100644
index 00000000000..d2ce3214572
--- /dev/null
+++ b/drivers/usb/input/hid-zpff.c
@@ -0,0 +1,110 @@
+/*
+ * Force feedback support for Zeroplus based devices
+ *
+ * Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("hid-zpff: " format "\n" , ## arg)
+
+#include <linux/input.h>
+#include <linux/usb.h>
+#include "hid.h"
+
+struct zpff_device {
+ struct hid_report *report;
+};
+
+static int hid_zpff_play(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct hid_device *hid = dev->private;
+ struct zpff_device *zpff = data;
+ int left, right;
+
+ /*
+ * The following is specified the other way around in the Zeroplus
+ * datasheet but the order below is correct for the XFX Executioner;
+ * however it is possible that the XFX Executioner is an exception
+ */
+
+ left = effect->u.rumble.strong_magnitude;
+ right = effect->u.rumble.weak_magnitude;
+ debug("called with 0x%04x 0x%04x", left, right);
+
+ left = left * 0x7f / 0xffff;
+ right = right * 0x7f / 0xffff;
+
+ zpff->report->field[2]->value[0] = left;
+ zpff->report->field[3]->value[0] = right;
+ debug("running with 0x%02x 0x%02x", left, right);
+ hid_submit_report(hid, zpff->report, USB_DIR_OUT);
+
+ return 0;
+}
+
+int hid_zpff_init(struct hid_device *hid)
+{
+ struct zpff_device *zpff;
+ struct hid_report *report;
+ struct hid_input *hidinput = list_entry(hid->inputs.next,
+ struct hid_input, list);
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ int error;
+
+ if (list_empty(report_list)) {
+ printk(KERN_ERR "hid-zpff: no output report found\n");
+ return -ENODEV;
+ }
+
+ report = list_entry(report_list->next, struct hid_report, list);
+
+ if (report->maxfield < 4) {
+ printk(KERN_ERR "hid-zpff: not enough fields in report\n");
+ return -ENODEV;
+ }
+
+ zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);
+ if (!zpff)
+ return -ENOMEM;
+
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ error = input_ff_create_memless(dev, zpff, hid_zpff_play);
+ if (error) {
+ kfree(zpff);
+ return error;
+ }
+
+ zpff->report = report;
+ zpff->report->field[0]->value[0] = 0x00;
+ zpff->report->field[1]->value[0] = 0x02;
+ zpff->report->field[2]->value[0] = 0x00;
+ zpff->report->field[3]->value[0] = 0x00;
+ hid_submit_report(hid, zpff->report, USB_DIR_OUT);
+
+ printk(KERN_INFO "Force feedback for Zeroplus based devices by "
+ "Anssi Hannula <anssi.hannula@gmail.com>\n");
+
+ return 0;
+}
diff --git a/drivers/usb/input/hid.h b/drivers/usb/input/hid.h
index 778e575de35..b03fd9b075d 100644
--- a/drivers/usb/input/hid.h
+++ b/drivers/usb/input/hid.h
@@ -449,11 +449,6 @@ struct hid_device { /* device report descriptor */
char phys[64]; /* Device physical location */
char uniq[64]; /* Device unique identifier (serial #) */
- void *ff_private; /* Private data for the force-feedback driver */
- void (*ff_exit)(struct hid_device*); /* Called by hid_exit_ff(hid) */
- int (*ff_event)(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value);
-
#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
unsigned long pb_pressed_fn[NBITS(KEY_MAX)];
unsigned long pb_pressed_numlock[NBITS(KEY_MAX)];
@@ -521,29 +516,22 @@ void hid_close(struct hid_device *);
int hid_set_field(struct hid_field *, unsigned, __s32);
void hid_submit_report(struct hid_device *, struct hid_report *, unsigned char dir);
void hid_init_reports(struct hid_device *hid);
-struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type);
int hid_wait_io(struct hid_device* hid);
#ifdef CONFIG_HID_FF
int hid_ff_init(struct hid_device *hid);
+
+int hid_lgff_init(struct hid_device *hid);
+int hid_tmff_init(struct hid_device *hid);
+int hid_zpff_init(struct hid_device *hid);
+#ifdef CONFIG_HID_PID
+int hid_pidff_init(struct hid_device *hid);
+#else
+static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; }
+#endif
+
#else
static inline int hid_ff_init(struct hid_device *hid) { return -1; }
#endif
-static inline void hid_ff_exit(struct hid_device *hid)
-{
- if (hid->ff_exit)
- hid->ff_exit(hid);
-}
-static inline int hid_ff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value)
-{
- if (hid->ff_event)
- return hid->ff_event(hid, input, type, code, value);
- return -ENOSYS;
-}
-
-int hid_lgff_init(struct hid_device* hid);
-int hid_tmff_init(struct hid_device* hid);
-int hid_pid_init(struct hid_device* hid);
diff --git a/drivers/usb/input/pid.c b/drivers/usb/input/pid.c
deleted file mode 100644
index d9d9f656b8c..00000000000
--- a/drivers/usb/input/pid.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * PID Force feedback support for hid devices.
- *
- * Copyright (c) 2002 Rodrigo Damazio.
- * Portions by Johann Deneux and Bjorn Augustson
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Should you need to contact me, the author, you can do so by
- * e-mail - mail your message to <rdamazio@lsi.usp.br>
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/smp_lock.h>
-#include <linux/spinlock.h>
-#include <linux/input.h>
-#include <linux/usb.h>
-#include "hid.h"
-#include "pid.h"
-
-#define CHECK_OWNERSHIP(i, hid_pid) \
- ((i) < FF_EFFECTS_MAX && i >= 0 && \
- test_bit(FF_PID_FLAGS_USED, &hid_pid->effects[(i)].flags) && \
- (current->pid == 0 || \
- (hid_pid)->effects[(i)].owner == current->pid))
-
-/* Called when a transfer is completed */
-static void hid_pid_ctrl_out(struct urb *u, struct pt_regs *regs)
-{
- dev_dbg(&u->dev->dev, "hid_pid_ctrl_out - Transfer Completed\n");
-}
-
-static void hid_pid_exit(struct hid_device *hid)
-{
- struct hid_ff_pid *private = hid->ff_private;
-
- if (private->urbffout) {
- usb_kill_urb(private->urbffout);
- usb_free_urb(private->urbffout);
- }
-}
-
-static int pid_upload_periodic(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "requested periodic force upload\n");
- return 0;
-}
-
-static int pid_upload_constant(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "requested constant force upload\n");
- return 0;
-}
-
-static int pid_upload_condition(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "requested Condition force upload\n");
- return 0;
-}
-
-static int pid_upload_ramp(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "request ramp force upload\n");
- return 0;
-}
-
-static int hid_pid_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value)
-{
- dev_dbg(&hid->dev->dev, "PID event received: type=%d,code=%d,value=%d.\n", type, code, value);
-
- if (type != EV_FF)
- return -1;
-
- return 0;
-}
-
-/* Lock must be held by caller */
-static void hid_pid_ctrl_playback(struct hid_device *hid, struct hid_pid_effect *effect, int play)
-{
- if (play)
- set_bit(FF_PID_FLAGS_PLAYING, &effect->flags);
- else
- clear_bit(FF_PID_FLAGS_PLAYING, &effect->flags);
-}
-
-static int hid_pid_erase(struct input_dev *dev, int id)
-{
- struct hid_device *hid = dev->private;
- struct hid_ff_pid *pid = hid->ff_private;
- struct hid_field *field;
- unsigned long flags;
- int ret;
-
- if (!CHECK_OWNERSHIP(id, pid))
- return -EACCES;
-
- /* Find report */
- field = hid_find_field_by_usage(hid, HID_UP_PID | FF_PID_USAGE_BLOCK_FREE,
- HID_OUTPUT_REPORT);
- if (!field) {
- dev_err(&hid->dev->dev, "couldn't find report\n");
- return -EIO;
- }
-
- ret = hid_set_field(field, 0, pid->effects[id].device_id);
- if (ret) {
- dev_err(&hid->dev->dev, "couldn't set field\n");
- return ret;
- }
-
- hid_submit_report(hid, field->report, USB_DIR_OUT);
-
- spin_lock_irqsave(&pid->lock, flags);
- hid_pid_ctrl_playback(hid, pid->effects + id, 0);
- pid->effects[id].flags = 0;
- spin_unlock_irqrestore(&pid->lock, flags);
-
- return 0;
-}
-
-/* Erase all effects this process owns */
-static int hid_pid_flush(struct input_dev *dev, struct file *file)
-{
- struct hid_device *hid = dev->private;
- struct hid_ff_pid *pid = hid->ff_private;
- int i;
-
- /*NOTE: no need to lock here. The only times EFFECT_USED is
- modified is when effects are uploaded or when an effect is
- erased. But a process cannot close its dev/input/eventX fd
- and perform ioctls on the same fd all at the same time */
- /*FIXME: multiple threads, anyone? */
- for (i = 0; i < dev->ff_effects_max; ++i)
- if (current->pid == pid->effects[i].owner
- && test_bit(FF_PID_FLAGS_USED, &pid->effects[i].flags))
- if (hid_pid_erase(dev, i))
- dev_warn(&hid->dev->dev, "erase effect %d failed", i);
-
- return 0;
-}
-
-static int hid_pid_upload_effect(struct input_dev *dev,
- struct ff_effect *effect)
-{
- struct hid_ff_pid *pid_private = (struct hid_ff_pid *)(dev->private);
- int ret;
- int is_update;
- unsigned long flags;
-
- dev_dbg(&pid_private->hid->dev->dev, "upload effect called: effect_type=%x\n", effect->type);
- /* Check this effect type is supported by this device */
- if (!test_bit(effect->type, dev->ffbit)) {
- dev_dbg(&pid_private->hid->dev->dev,
- "invalid kind of effect requested.\n");
- return -EINVAL;
- }
-
- /*
- * If we want to create a new effect, get a free id
- */
- if (effect->id == -1) {
- int id = 0;
-
- // Spinlock so we don`t get a race condition when choosing IDs
- spin_lock_irqsave(&pid_private->lock, flags);
-
- while (id < FF_EFFECTS_MAX)
- if (!test_and_set_bit(FF_PID_FLAGS_USED, &pid_private->effects[id++].flags))
- break;
-
- if (id == FF_EFFECTS_MAX) {
- spin_unlock_irqrestore(&pid_private->lock, flags);
-// TEMP - We need to get ff_effects_max correctly first: || id >= dev->ff_effects_max) {
- dev_dbg(&pid_private->hid->dev->dev, "Not enough device memory\n");
- return -ENOMEM;
- }
-
- effect->id = id;
- dev_dbg(&pid_private->hid->dev->dev, "effect ID is %d.\n", id);
- pid_private->effects[id].owner = current->pid;
- pid_private->effects[id].flags = (1 << FF_PID_FLAGS_USED);
- spin_unlock_irqrestore(&pid_private->lock, flags);
-
- is_update = FF_PID_FALSE;
- } else {
- /* We want to update an effect */
- if (!CHECK_OWNERSHIP(effect->id, pid_private))
- return -EACCES;
-
- /* Parameter type cannot be updated */
- if (effect->type != pid_private->effects[effect->id].effect.type)
- return -EINVAL;
-
- /* Check the effect is not already being updated */
- if (test_bit(FF_PID_FLAGS_UPDATING, &pid_private->effects[effect->id].flags))
- return -EAGAIN;
-
- is_update = FF_PID_TRUE;
- }
-
- /*
- * Upload the effect
- */
- switch (effect->type) {
- case FF_PERIODIC:
- ret = pid_upload_periodic(pid_private, effect, is_update);
- break;
-
- case FF_CONSTANT:
- ret = pid_upload_constant(pid_private, effect, is_update);
- break;
-
- case FF_SPRING:
- case FF_FRICTION:
- case FF_DAMPER:
- case FF_INERTIA:
- ret = pid_upload_condition(pid_private, effect, is_update);
- break;
-
- case FF_RAMP:
- ret = pid_upload_ramp(pid_private, effect, is_update);
- break;
-
- default:
- dev_dbg(&pid_private->hid->dev->dev,
- "invalid type of effect requested - %x.\n",
- effect->type);
- return -EINVAL;
- }
- /* If a packet was sent, forbid new updates until we are notified
- * that the packet was updated
- */
- if (ret == 0)
- set_bit(FF_PID_FLAGS_UPDATING, &pid_private->effects[effect->id].flags);
- pid_private->effects[effect->id].effect = *effect;
- return ret;
-}
-
-int hid_pid_init(struct hid_device *hid)
-{
- struct hid_ff_pid *private;
- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
- struct input_dev *input_dev = hidinput->input;
-
- private = hid->ff_private = kzalloc(sizeof(struct hid_ff_pid), GFP_KERNEL);
- if (!private)
- return -ENOMEM;
-
- private->hid = hid;
-
- hid->ff_exit = hid_pid_exit;
- hid->ff_event = hid_pid_event;
-
- /* Open output URB */
- if (!(private->urbffout = usb_alloc_urb(0, GFP_KERNEL))) {
- kfree(private);
- return -1;
- }
-
- usb_fill_control_urb(private->urbffout, hid->dev, 0,
- (void *)&private->ffcr, private->ctrl_buffer, 8,
- hid_pid_ctrl_out, hid);
-
- input_dev->upload_effect = hid_pid_upload_effect;
- input_dev->flush = hid_pid_flush;
- input_dev->ff_effects_max = 8; // A random default
- set_bit(EV_FF, input_dev->evbit);
- set_bit(EV_FF_STATUS, input_dev->evbit);
-
- spin_lock_init(&private->lock);
-
- printk(KERN_INFO "Force feedback driver for PID devices by Rodrigo Damazio <rdamazio@lsi.usp.br>.\n");
-
- return 0;
-}
diff --git a/drivers/usb/input/pid.h b/drivers/usb/input/pid.h
deleted file mode 100644
index a2cb9627ed0..00000000000
--- a/drivers/usb/input/pid.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * PID Force feedback support for hid devices.
- *
- * Copyright (c) 2002 Rodrigo Damazio.
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Should you need to contact me, the author, you can do so by
- * e-mail - mail your message to <rdamazio@lsi.usp.br>
- */
-
-#define FF_EFFECTS_MAX 64
-
-#define FF_PID_FLAGS_USED 1 /* If the effect exists */
-#define FF_PID_FLAGS_UPDATING 2 /* If the effect is being updated */
-#define FF_PID_FLAGS_PLAYING 3 /* If the effect is currently being played */
-
-#define FF_PID_FALSE 0
-#define FF_PID_TRUE 1
-
-struct hid_pid_effect {
- unsigned long flags;
- pid_t owner;
- unsigned int device_id; /* The device-assigned ID */
- struct ff_effect effect;
-};
-
-struct hid_ff_pid {
- struct hid_device *hid;
- unsigned long gain;
-
- struct urb *urbffout;
- struct usb_ctrlrequest ffcr;
- spinlock_t lock;
-
- unsigned char ctrl_buffer[8];
-
- struct hid_pid_effect effects[FF_EFFECTS_MAX];
-};
-
-/*
- * Constants from the PID usage table (still far from complete)
- */
-
-#define FF_PID_USAGE_BLOCK_LOAD 0x89UL
-#define FF_PID_USAGE_BLOCK_FREE 0x90UL
-#define FF_PID_USAGE_NEW_EFFECT 0xABUL
-#define FF_PID_USAGE_POOL_REPORT 0x7FUL