From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- drivers/input/mousedev.c | 758 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 758 insertions(+) create mode 100644 drivers/input/mousedev.c (limited to 'drivers/input/mousedev.c') 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX +#include +#endif + +MODULE_AUTHOR("Vojtech Pavlik "); +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); -- cgit v1.1