Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
new file mode 100644
index 0000000..564974c
--- /dev/null
+++ b/drivers/input/mousedev.c
@@ -0,0 +1,758 @@
+/*
+ * Input driver to ExplorerPS/2 device driver module.
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2004 Dmitry Torokhov
+ *
+ * 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.
+ */
+
+#define MOUSEDEV_MINOR_BASE 32
+#define MOUSEDEV_MINORS 32
+#define MOUSEDEV_MIX 31
+
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/config.h>
+#include <linux/smp_lock.h>
+#include <linux/random.h>
+#include <linux/major.h>
+#include <linux/device.h>
+#include <linux/devfs_fs_kernel.h>
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+#include <linux/miscdevice.h>
+#endif
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Mouse (ExplorerPS/2) device interfaces");
+MODULE_LICENSE("GPL");
+
+#ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_X
+#define CONFIG_INPUT_MOUSEDEV_SCREEN_X 1024
+#endif
+#ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_Y
+#define CONFIG_INPUT_MOUSEDEV_SCREEN_Y 768
+#endif
+
+static int xres = CONFIG_INPUT_MOUSEDEV_SCREEN_X;
+module_param(xres, uint, 0);
+MODULE_PARM_DESC(xres, "Horizontal screen resolution");
+
+static int yres = CONFIG_INPUT_MOUSEDEV_SCREEN_Y;
+module_param(yres, uint, 0);
+MODULE_PARM_DESC(yres, "Vertical screen resolution");
+
+static unsigned tap_time = 200;
+module_param(tap_time, uint, 0);
+MODULE_PARM_DESC(tap_time, "Tap time for touchpads in absolute mode (msecs)");
+
+struct mousedev_hw_data {
+ int dx, dy, dz;
+ int x, y;
+ int abs_event;
+ unsigned long buttons;
+};
+
+struct mousedev {
+ int exist;
+ int open;
+ int minor;
+ char name[16];
+ wait_queue_head_t wait;
+ struct list_head list;
+ struct input_handle handle;
+
+ struct mousedev_hw_data packet;
+ unsigned int pkt_count;
+ int old_x[4], old_y[4];
+ int frac_dx, frac_dy;
+ unsigned long touch;
+};
+
+enum mousedev_emul {
+ MOUSEDEV_EMUL_PS2,
+ MOUSEDEV_EMUL_IMPS,
+ MOUSEDEV_EMUL_EXPS
+};
+
+struct mousedev_motion {
+ int dx, dy, dz;
+ unsigned long buttons;
+};
+
+#define PACKET_QUEUE_LEN 16
+struct mousedev_list {
+ struct fasync_struct *fasync;
+ struct mousedev *mousedev;
+ struct list_head node;
+
+ struct mousedev_motion packets[PACKET_QUEUE_LEN];
+ unsigned int head, tail;
+ spinlock_t packet_lock;
+ int pos_x, pos_y;
+
+ signed char ps2[6];
+ unsigned char ready, buffer, bufsiz;
+ unsigned char imexseq, impsseq;
+ enum mousedev_emul mode;
+};
+
+#define MOUSEDEV_SEQ_LEN 6
+
+static unsigned char mousedev_imps_seq[] = { 0xf3, 200, 0xf3, 100, 0xf3, 80 };
+static unsigned char mousedev_imex_seq[] = { 0xf3, 200, 0xf3, 200, 0xf3, 80 };
+
+static struct input_handler mousedev_handler;
+
+static struct mousedev *mousedev_table[MOUSEDEV_MINORS];
+static struct mousedev mousedev_mix;
+
+#define fx(i) (mousedev->old_x[(mousedev->pkt_count - (i)) & 03])
+#define fy(i) (mousedev->old_y[(mousedev->pkt_count - (i)) & 03])
+
+static void mousedev_touchpad_event(struct input_dev *dev, struct mousedev *mousedev, unsigned int code, int value)
+{
+ int size, tmp;
+ enum { FRACTION_DENOM = 128 };
+
+ if (mousedev->touch) {
+ size = dev->absmax[ABS_X] - dev->absmin[ABS_X];
+ if (size == 0) size = 256 * 2;
+ switch (code) {
+ case ABS_X:
+ fx(0) = value;
+ if (mousedev->pkt_count >= 2) {
+ tmp = ((value - fx(2)) * (256 * FRACTION_DENOM)) / size;
+ tmp += mousedev->frac_dx;
+ mousedev->packet.dx = tmp / FRACTION_DENOM;
+ mousedev->frac_dx = tmp - mousedev->packet.dx * FRACTION_DENOM;
+ }
+ break;
+
+ case ABS_Y:
+ fy(0) = value;
+ if (mousedev->pkt_count >= 2) {
+ tmp = -((value - fy(2)) * (256 * FRACTION_DENOM)) / size;
+ tmp += mousedev->frac_dy;
+ mousedev->packet.dy = tmp / FRACTION_DENOM;
+ mousedev->frac_dy = tmp - mousedev->packet.dy * FRACTION_DENOM;
+ }
+ break;
+ }
+ }
+}
+
+static void mousedev_abs_event(struct input_dev *dev, struct mousedev *mousedev, unsigned int code, int value)
+{
+ int size;
+
+ switch (code) {
+ case ABS_X:
+ size = dev->absmax[ABS_X] - dev->absmin[ABS_X];
+ if (size == 0) size = xres;
+ if (value > dev->absmax[ABS_X]) value = dev->absmax[ABS_X];
+ if (value < dev->absmin[ABS_X]) value = dev->absmin[ABS_X];
+ mousedev->packet.x = ((value - dev->absmin[ABS_X]) * xres) / size;
+ mousedev->packet.abs_event = 1;
+ break;
+
+ case ABS_Y:
+ size = dev->absmax[ABS_Y] - dev->absmin[ABS_Y];
+ if (size == 0) size = yres;
+ if (value > dev->absmax[ABS_Y]) value = dev->absmax[ABS_Y];
+ if (value < dev->absmin[ABS_Y]) value = dev->absmin[ABS_Y];
+ mousedev->packet.y = yres - ((value - dev->absmin[ABS_Y]) * yres) / size;
+ mousedev->packet.abs_event = 1;
+ break;
+ }
+}
+
+static void mousedev_rel_event(struct mousedev *mousedev, unsigned int code, int value)
+{
+ switch (code) {
+ case REL_X: mousedev->packet.dx += value; break;
+ case REL_Y: mousedev->packet.dy -= value; break;
+ case REL_WHEEL: mousedev->packet.dz -= value; break;
+ }
+}
+
+static void mousedev_key_event(struct mousedev *mousedev, unsigned int code, int value)
+{
+ int index;
+
+ switch (code) {
+ case BTN_TOUCH:
+ case BTN_0:
+ case BTN_FORWARD:
+ case BTN_LEFT: index = 0; break;
+ case BTN_STYLUS:
+ case BTN_1:
+ case BTN_RIGHT: index = 1; break;
+ case BTN_2:
+ case BTN_STYLUS2:
+ case BTN_MIDDLE: index = 2; break;
+ case BTN_3:
+ case BTN_BACK:
+ case BTN_SIDE: index = 3; break;
+ case BTN_4:
+ case BTN_EXTRA: index = 4; break;
+ default: return;
+ }
+
+ if (value) {
+ set_bit(index, &mousedev->packet.buttons);
+ set_bit(index, &mousedev_mix.packet.buttons);
+ } else {
+ clear_bit(index, &mousedev->packet.buttons);
+ clear_bit(index, &mousedev_mix.packet.buttons);
+ }
+}
+
+static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_hw_data *packet)
+{
+ struct mousedev_list *list;
+ struct mousedev_motion *p;
+ unsigned long flags;
+
+ list_for_each_entry(list, &mousedev->list, node) {
+ spin_lock_irqsave(&list->packet_lock, flags);
+
+ p = &list->packets[list->head];
+ if (list->ready && p->buttons != packet->buttons) {
+ unsigned int new_head = (list->head + 1) % PACKET_QUEUE_LEN;
+ if (new_head != list->tail) {
+ p = &list->packets[list->head = new_head];
+ memset(p, 0, sizeof(struct mousedev_motion));
+ }
+ }
+
+ if (packet->abs_event) {
+ p->dx += packet->x - list->pos_x;
+ p->dy += packet->y - list->pos_y;
+ list->pos_x = packet->x;
+ list->pos_y = packet->y;
+ }
+
+ list->pos_x += packet->dx;
+ list->pos_x = list->pos_x < 0 ? 0 : (list->pos_x >= xres ? xres : list->pos_x);
+ list->pos_y += packet->dy;
+ list->pos_y = list->pos_y < 0 ? 0 : (list->pos_y >= yres ? yres : list->pos_y);
+
+ p->dx += packet->dx;
+ p->dy += packet->dy;
+ p->dz += packet->dz;
+ p->buttons = mousedev->packet.buttons;
+
+ list->ready = 1;
+
+ spin_unlock_irqrestore(&list->packet_lock, flags);
+ kill_fasync(&list->fasync, SIGIO, POLL_IN);
+ }
+
+ wake_up_interruptible(&mousedev->wait);
+}
+
+static void mousedev_touchpad_touch(struct mousedev *mousedev, int value)
+{
+ if (!value) {
+ if (mousedev->touch &&
+ time_before(jiffies, mousedev->touch + msecs_to_jiffies(tap_time))) {
+ /*
+ * Toggle left button to emulate tap.
+ * We rely on the fact that mousedev_mix always has 0
+ * motion packet so we won't mess current position.
+ */
+ set_bit(0, &mousedev->packet.buttons);
+ set_bit(0, &mousedev_mix.packet.buttons);
+ mousedev_notify_readers(mousedev, &mousedev_mix.packet);
+ mousedev_notify_readers(&mousedev_mix, &mousedev_mix.packet);
+ clear_bit(0, &mousedev->packet.buttons);
+ clear_bit(0, &mousedev_mix.packet.buttons);
+ }
+ mousedev->touch = mousedev->pkt_count = 0;
+ mousedev->frac_dx = 0;
+ mousedev->frac_dy = 0;
+ }
+ else
+ if (!mousedev->touch)
+ mousedev->touch = jiffies;
+}
+
+static void mousedev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
+{
+ struct mousedev *mousedev = handle->private;
+
+ switch (type) {
+ case EV_ABS:
+ /* Ignore joysticks */
+ if (test_bit(BTN_TRIGGER, handle->dev->keybit))
+ return;
+
+ if (test_bit(BTN_TOOL_FINGER, handle->dev->keybit))
+ mousedev_touchpad_event(handle->dev, mousedev, code, value);
+ else
+ mousedev_abs_event(handle->dev, mousedev, code, value);
+
+ break;
+
+ case EV_REL:
+ mousedev_rel_event(mousedev, code, value);
+ break;
+
+ case EV_KEY:
+ if (value != 2) {
+ if (code == BTN_TOUCH && test_bit(BTN_TOOL_FINGER, handle->dev->keybit))
+ mousedev_touchpad_touch(mousedev, value);
+ else
+ mousedev_key_event(mousedev, code, value);
+ }
+ break;
+
+ case EV_SYN:
+ if (code == SYN_REPORT) {
+ if (mousedev->touch) {
+ mousedev->pkt_count++;
+ /* Input system eats duplicate events, but we need all of them
+ * to do correct averaging so apply present one forward
+ */
+ fx(0) = fx(1);
+ fy(0) = fy(1);
+ }
+
+ mousedev_notify_readers(mousedev, &mousedev->packet);
+ mousedev_notify_readers(&mousedev_mix, &mousedev->packet);
+
+ mousedev->packet.dx = mousedev->packet.dy = mousedev->packet.dz = 0;
+ mousedev->packet.abs_event = 0;
+ }
+ break;
+ }
+}
+
+static int mousedev_fasync(int fd, struct file *file, int on)
+{
+ int retval;
+ struct mousedev_list *list = file->private_data;
+ retval = fasync_helper(fd, file, on, &list->fasync);
+ return retval < 0 ? retval : 0;
+}
+
+static void mousedev_free(struct mousedev *mousedev)
+{
+ mousedev_table[mousedev->minor] = NULL;
+ kfree(mousedev);
+}
+
+static int mixdev_release(void)
+{
+ struct input_handle *handle;
+
+ list_for_each_entry(handle, &mousedev_handler.h_list, h_node) {
+ struct mousedev *mousedev = handle->private;
+
+ if (!mousedev->open) {
+ if (mousedev->exist)
+ input_close_device(&mousedev->handle);
+ else
+ mousedev_free(mousedev);
+ }
+ }
+
+ return 0;
+}
+
+static int mousedev_release(struct inode * inode, struct file * file)
+{
+ struct mousedev_list *list = file->private_data;
+
+ mousedev_fasync(-1, file, 0);
+
+ list_del(&list->node);
+
+ if (!--list->mousedev->open) {
+ if (list->mousedev->minor == MOUSEDEV_MIX)
+ return mixdev_release();
+
+ if (!mousedev_mix.open) {
+ if (list->mousedev->exist)
+ input_close_device(&list->mousedev->handle);
+ else
+ mousedev_free(list->mousedev);
+ }
+ }
+
+ kfree(list);
+ return 0;
+}
+
+static int mousedev_open(struct inode * inode, struct file * file)
+{
+ struct mousedev_list *list;
+ struct input_handle *handle;
+ struct mousedev *mousedev;
+ int i;
+
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+ if (imajor(inode) == MISC_MAJOR)
+ i = MOUSEDEV_MIX;
+ else
+#endif
+ i = iminor(inode) - MOUSEDEV_MINOR_BASE;
+
+ if (i >= MOUSEDEV_MINORS || !mousedev_table[i])
+ return -ENODEV;
+
+ if (!(list = kmalloc(sizeof(struct mousedev_list), GFP_KERNEL)))
+ return -ENOMEM;
+ memset(list, 0, sizeof(struct mousedev_list));
+
+ spin_lock_init(&list->packet_lock);
+ list->pos_x = xres / 2;
+ list->pos_y = yres / 2;
+ list->mousedev = mousedev_table[i];
+ list_add_tail(&list->node, &mousedev_table[i]->list);
+ file->private_data = list;
+
+ if (!list->mousedev->open++) {
+ if (list->mousedev->minor == MOUSEDEV_MIX) {
+ list_for_each_entry(handle, &mousedev_handler.h_list, h_node) {
+ mousedev = handle->private;
+ if (!mousedev->open && mousedev->exist)
+ input_open_device(handle);
+ }
+ } else
+ if (!mousedev_mix.open && list->mousedev->exist)
+ input_open_device(&list->mousedev->handle);
+ }
+
+ return 0;
+}
+
+static inline int mousedev_limit_delta(int delta, int limit)
+{
+ return delta > limit ? limit : (delta < -limit ? -limit : delta);
+}
+
+static void mousedev_packet(struct mousedev_list *list, signed char *ps2_data)
+{
+ struct mousedev_motion *p;
+ unsigned long flags;
+
+ spin_lock_irqsave(&list->packet_lock, flags);
+ p = &list->packets[list->tail];
+
+ ps2_data[0] = 0x08 | ((p->dx < 0) << 4) | ((p->dy < 0) << 5) | (p->buttons & 0x07);
+ ps2_data[1] = mousedev_limit_delta(p->dx, 127);
+ ps2_data[2] = mousedev_limit_delta(p->dy, 127);
+ p->dx -= ps2_data[1];
+ p->dy -= ps2_data[2];
+
+ switch (list->mode) {
+ case MOUSEDEV_EMUL_EXPS:
+ ps2_data[3] = mousedev_limit_delta(p->dz, 7);
+ p->dz -= ps2_data[3];
+ ps2_data[3] = (ps2_data[3] & 0x0f) | ((p->buttons & 0x18) << 1);
+ list->bufsiz = 4;
+ break;
+
+ case MOUSEDEV_EMUL_IMPS:
+ ps2_data[0] |= ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1);
+ ps2_data[3] = mousedev_limit_delta(p->dz, 127);
+ p->dz -= ps2_data[3];
+ list->bufsiz = 4;
+ break;
+
+ case MOUSEDEV_EMUL_PS2:
+ default:
+ ps2_data[0] |= ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1);
+ p->dz = 0;
+ list->bufsiz = 3;
+ break;
+ }
+
+ if (!p->dx && !p->dy && !p->dz) {
+ if (list->tail == list->head)
+ list->ready = 0;
+ else
+ list->tail = (list->tail + 1) % PACKET_QUEUE_LEN;
+ }
+
+ spin_unlock_irqrestore(&list->packet_lock, flags);
+}
+
+
+static ssize_t mousedev_write(struct file * file, const char __user * buffer, size_t count, loff_t *ppos)
+{
+ struct mousedev_list *list = file->private_data;
+ unsigned char c;
+ unsigned int i;
+
+ for (i = 0; i < count; i++) {
+
+ if (get_user(c, buffer + i))
+ return -EFAULT;
+
+ if (c == mousedev_imex_seq[list->imexseq]) {
+ if (++list->imexseq == MOUSEDEV_SEQ_LEN) {
+ list->imexseq = 0;
+ list->mode = MOUSEDEV_EMUL_EXPS;
+ }
+ } else list->imexseq = 0;
+
+ if (c == mousedev_imps_seq[list->impsseq]) {
+ if (++list->impsseq == MOUSEDEV_SEQ_LEN) {
+ list->impsseq = 0;
+ list->mode = MOUSEDEV_EMUL_IMPS;
+ }
+ } else list->impsseq = 0;
+
+ list->ps2[0] = 0xfa;
+
+ switch (c) {
+
+ case 0xeb: /* Poll */
+ mousedev_packet(list, &list->ps2[1]);
+ list->bufsiz++; /* account for leading ACK */
+ break;
+
+ case 0xf2: /* Get ID */
+ switch (list->mode) {
+ case MOUSEDEV_EMUL_PS2: list->ps2[1] = 0; break;
+ case MOUSEDEV_EMUL_IMPS: list->ps2[1] = 3; break;
+ case MOUSEDEV_EMUL_EXPS: list->ps2[1] = 4; break;
+ }
+ list->bufsiz = 2;
+ break;
+
+ case 0xe9: /* Get info */
+ list->ps2[1] = 0x60; list->ps2[2] = 3; list->ps2[3] = 200;
+ list->bufsiz = 4;
+ break;
+
+ case 0xff: /* Reset */
+ list->impsseq = list->imexseq = 0;
+ list->mode = MOUSEDEV_EMUL_PS2;
+ list->ps2[1] = 0xaa; list->ps2[2] = 0x00;
+ list->bufsiz = 3;
+ break;
+
+ default:
+ list->bufsiz = 1;
+ break;
+ }
+
+ list->buffer = list->bufsiz;
+ }
+
+ kill_fasync(&list->fasync, SIGIO, POLL_IN);
+
+ wake_up_interruptible(&list->mousedev->wait);
+
+ return count;
+}
+
+static ssize_t mousedev_read(struct file * file, char __user * buffer, size_t count, loff_t *ppos)
+{
+ struct mousedev_list *list = file->private_data;
+ int retval = 0;
+
+ if (!list->ready && !list->buffer && (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
+ retval = wait_event_interruptible(list->mousedev->wait,
+ !list->mousedev->exist || list->ready || list->buffer);
+
+ if (retval)
+ return retval;
+
+ if (!list->mousedev->exist)
+ return -ENODEV;
+
+ if (!list->buffer && list->ready) {
+ mousedev_packet(list, list->ps2);
+ list->buffer = list->bufsiz;
+ }
+
+ if (count > list->buffer)
+ count = list->buffer;
+
+ list->buffer -= count;
+
+ if (copy_to_user(buffer, list->ps2 + list->bufsiz - list->buffer - count, count))
+ return -EFAULT;
+
+ return count;
+}
+
+/* No kernel lock - fine */
+static unsigned int mousedev_poll(struct file *file, poll_table *wait)
+{
+ struct mousedev_list *list = file->private_data;
+ poll_wait(file, &list->mousedev->wait, wait);
+ return ((list->ready || list->buffer) ? (POLLIN | POLLRDNORM) : 0) |
+ (list->mousedev->exist ? 0 : (POLLHUP | POLLERR));
+}
+
+static struct file_operations mousedev_fops = {
+ .owner = THIS_MODULE,
+ .read = mousedev_read,
+ .write = mousedev_write,
+ .poll = mousedev_poll,
+ .open = mousedev_open,
+ .release = mousedev_release,
+ .fasync = mousedev_fasync,
+};
+
+static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+{
+ struct mousedev *mousedev;
+ int minor = 0;
+
+ for (minor = 0; minor < MOUSEDEV_MINORS && mousedev_table[minor]; minor++);
+ if (minor == MOUSEDEV_MINORS) {
+ printk(KERN_ERR "mousedev: no more free mousedev devices\n");
+ return NULL;
+ }
+
+ if (!(mousedev = kmalloc(sizeof(struct mousedev), GFP_KERNEL)))
+ return NULL;
+ memset(mousedev, 0, sizeof(struct mousedev));
+
+ INIT_LIST_HEAD(&mousedev->list);
+ init_waitqueue_head(&mousedev->wait);
+
+ mousedev->minor = minor;
+ mousedev->exist = 1;
+ mousedev->handle.dev = dev;
+ mousedev->handle.name = mousedev->name;
+ mousedev->handle.handler = handler;
+ mousedev->handle.private = mousedev;
+ sprintf(mousedev->name, "mouse%d", minor);
+
+ if (mousedev_mix.open)
+ input_open_device(&mousedev->handle);
+
+ mousedev_table[minor] = mousedev;
+
+ devfs_mk_cdev(MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor),
+ S_IFCHR|S_IRUGO|S_IWUSR, "input/mouse%d", minor);
+ class_simple_device_add(input_class,
+ MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor),
+ dev->dev, "mouse%d", minor);
+
+ return &mousedev->handle;
+}
+
+static void mousedev_disconnect(struct input_handle *handle)
+{
+ struct mousedev *mousedev = handle->private;
+ struct mousedev_list *list;
+
+ class_simple_device_remove(MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + mousedev->minor));
+ devfs_remove("input/mouse%d", mousedev->minor);
+ mousedev->exist = 0;
+
+ if (mousedev->open) {
+ input_close_device(handle);
+ wake_up_interruptible(&mousedev->wait);
+ list_for_each_entry(list, &mousedev->list, node)
+ kill_fasync(&list->fasync, SIGIO, POLL_HUP);
+ } else {
+ if (mousedev_mix.open)
+ input_close_device(handle);
+ mousedev_free(mousedev);
+ }
+}
+
+static 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) },
+ .keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) },
+ .relbit = { BIT(REL_X) | BIT(REL_Y) },
+ }, /* A mouse like device, at least one button, two relative axes */
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_RELBIT,
+ .evbit = { BIT(EV_KEY) | BIT(EV_REL) },
+ .relbit = { BIT(REL_WHEEL) },
+ }, /* A separate scrollwheel */
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT(EV_KEY) | BIT(EV_ABS) },
+ .keybit = { [LONG(BTN_TOUCH)] = BIT(BTN_TOUCH) },
+ .absbit = { BIT(ABS_X) | BIT(ABS_Y) },
+ }, /* A tablet like device, at least touch detection, two absolute axes */
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT(EV_KEY) | BIT(EV_ABS) },
+ .keybit = { [LONG(BTN_TOOL_FINGER)] = BIT(BTN_TOOL_FINGER) },
+ .absbit = { BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) | BIT(ABS_TOOL_WIDTH) },
+ }, /* A touchpad */
+
+ { }, /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(input, mousedev_ids);
+
+static struct input_handler mousedev_handler = {
+ .event = mousedev_event,
+ .connect = mousedev_connect,
+ .disconnect = mousedev_disconnect,
+ .fops = &mousedev_fops,
+ .minor = MOUSEDEV_MINOR_BASE,
+ .name = "mousedev",
+ .id_table = mousedev_ids,
+};
+
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+static struct miscdevice psaux_mouse = {
+ PSMOUSE_MINOR, "psaux", &mousedev_fops
+};
+static int psaux_registered;
+#endif
+
+static int __init mousedev_init(void)
+{
+ input_register_handler(&mousedev_handler);
+
+ memset(&mousedev_mix, 0, sizeof(struct mousedev));
+ INIT_LIST_HEAD(&mousedev_mix.list);
+ init_waitqueue_head(&mousedev_mix.wait);
+ mousedev_table[MOUSEDEV_MIX] = &mousedev_mix;
+ mousedev_mix.exist = 1;
+ mousedev_mix.minor = MOUSEDEV_MIX;
+
+ devfs_mk_cdev(MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX),
+ S_IFCHR|S_IRUGO|S_IWUSR, "input/mice");
+ class_simple_device_add(input_class, MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX),
+ NULL, "mice");
+
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+ if (!(psaux_registered = !misc_register(&psaux_mouse)))
+ printk(KERN_WARNING "mice: could not misc_register the device\n");
+#endif
+
+ printk(KERN_INFO "mice: PS/2 mouse device common for all mice\n");
+
+ return 0;
+}
+
+static void __exit mousedev_exit(void)
+{
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+ if (psaux_registered)
+ misc_deregister(&psaux_mouse);
+#endif
+ devfs_remove("input/mice");
+ class_simple_device_remove(MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX));
+ input_unregister_handler(&mousedev_handler);
+}
+
+module_init(mousedev_init);
+module_exit(mousedev_exit);