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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 494 | giacomo | 1 | /* |
| 2 | * Input driver to ExplorerPS/2 device driver module. |
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| 3 | * |
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| 4 | * Copyright (c) 1999-2002 Vojtech Pavlik |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or modify |
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| 7 | * it under the terms of the GNU General Public License version 2 as published by |
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| 8 | * the Free Software Foundation. |
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| 9 | */ |
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| 10 | |||
| 11 | #include <linuxcomp.h> |
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| 12 | |||
| 13 | #define MOUSEDEV_MINOR_BASE 32 |
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| 14 | #define MOUSEDEV_MINORS 32 |
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| 15 | #define MOUSEDEV_MIX 31 |
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| 16 | |||
| 17 | #include <linux/slab.h> |
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| 18 | #include <linux/poll.h> |
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| 19 | #include <linux/module.h> |
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| 20 | #include <linux/init.h> |
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| 21 | #include <linux/input.h> |
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| 22 | #include <linux/config.h> |
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| 23 | #include <linux/smp_lock.h> |
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| 24 | #include <linux/random.h> |
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| 25 | #include <linux/major.h> |
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| 26 | #include <linux/device.h> |
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| 27 | #include <linux/devfs_fs_kernel.h> |
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| 28 | #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX |
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| 29 | #include <linux/miscdevice.h> |
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| 30 | #endif |
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| 31 | |||
| 32 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); |
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| 33 | MODULE_DESCRIPTION("Mouse (ExplorerPS/2) device interfaces"); |
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| 34 | MODULE_LICENSE("GPL"); |
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| 35 | |||
| 36 | #ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_X |
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| 37 | #define CONFIG_INPUT_MOUSEDEV_SCREEN_X 1024 |
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| 38 | #endif |
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| 39 | #ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_Y |
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| 40 | #define CONFIG_INPUT_MOUSEDEV_SCREEN_Y 768 |
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| 41 | #endif |
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| 42 | |||
| 43 | struct mousedev { |
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| 44 | int exist; |
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| 45 | int open; |
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| 46 | int minor; |
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| 47 | int misc; |
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| 48 | char name[16]; |
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| 49 | wait_queue_head_t wait; |
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| 50 | struct list_head list; |
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| 51 | struct input_handle handle; |
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| 52 | }; |
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| 53 | |||
| 54 | struct mousedev_list { |
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| 55 | struct fasync_struct *fasync; |
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| 56 | struct mousedev *mousedev; |
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| 57 | struct list_head node; |
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| 58 | int dx, dy, dz, oldx, oldy; |
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| 59 | signed char ps2[6]; |
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| 60 | unsigned long buttons; |
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| 61 | unsigned char ready, buffer, bufsiz; |
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| 62 | unsigned char mode, imexseq, impsseq; |
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| 63 | int finger; |
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| 64 | }; |
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| 65 | |||
| 66 | #define MOUSEDEV_SEQ_LEN 6 |
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| 67 | |||
| 68 | static unsigned char mousedev_imps_seq[] = { 0xf3, 200, 0xf3, 100, 0xf3, 80 }; |
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| 69 | static unsigned char mousedev_imex_seq[] = { 0xf3, 200, 0xf3, 200, 0xf3, 80 }; |
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| 70 | |||
| 71 | static struct input_handler mousedev_handler; |
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| 72 | |||
| 73 | static struct mousedev *mousedev_table[MOUSEDEV_MINORS]; |
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| 74 | static struct mousedev mousedev_mix; |
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| 75 | |||
| 76 | static int xres = CONFIG_INPUT_MOUSEDEV_SCREEN_X; |
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| 77 | static int yres = CONFIG_INPUT_MOUSEDEV_SCREEN_Y; |
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| 78 | |||
| 79 | static void mousedev_abs_event(struct input_handle *handle, struct mousedev_list *list, unsigned int code, int value) |
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| 80 | { |
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| 81 | int size; |
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| 82 | |||
| 83 | /* Ignore joysticks */ |
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| 84 | if (test_bit(BTN_TRIGGER, handle->dev->keybit)) |
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| 85 | return; |
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| 86 | |||
| 87 | /* Handle touchpad data */ |
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| 88 | if (test_bit(BTN_TOOL_FINGER, handle->dev->keybit)) { |
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| 89 | |||
| 90 | if (list->finger && list->finger < 3) |
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| 91 | list->finger++; |
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| 92 | |||
| 93 | switch (code) { |
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| 94 | case ABS_X: |
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| 95 | if (list->finger == 3) |
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| 96 | list->dx += (value - list->oldx) / 8; |
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| 97 | list->oldx = value; |
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| 98 | return; |
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| 99 | case ABS_Y: |
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| 100 | if (list->finger == 3) |
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| 101 | list->dy -= (value - list->oldy) / 8; |
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| 102 | list->oldy = value; |
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| 103 | return; |
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| 104 | } |
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| 105 | return; |
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| 106 | } |
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| 107 | |||
| 108 | /* Handle tablet data */ |
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| 109 | switch (code) { |
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| 110 | case ABS_X: |
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| 111 | size = handle->dev->absmax[ABS_X] - handle->dev->absmin[ABS_X]; |
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| 112 | if (size == 0) size = xres; |
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| 113 | list->dx += (value * xres - list->oldx) / size; |
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| 114 | list->oldx += list->dx * size; |
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| 115 | return; |
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| 116 | case ABS_Y: |
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| 117 | size = handle->dev->absmax[ABS_Y] - handle->dev->absmin[ABS_Y]; |
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| 118 | if (size == 0) size = yres; |
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| 119 | list->dy -= (value * yres - list->oldy) / size; |
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| 120 | list->oldy -= list->dy * size; |
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| 121 | return; |
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| 122 | } |
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| 123 | } |
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| 124 | |||
| 125 | static void mousedev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) |
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| 126 | { |
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| 127 | struct mousedev *mousedevs[3] = { handle->private, &mousedev_mix, NULL }; |
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| 128 | struct mousedev **mousedev = mousedevs; |
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| 129 | struct mousedev_list *list; |
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| 130 | int index, wake; |
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| 131 | |||
| 132 | while (*mousedev) { |
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| 133 | |||
| 134 | wake = 0; |
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| 135 | |||
| 136 | list_for_each_entry(list, &(*mousedev)->list, node) |
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| 137 | switch (type) { |
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| 138 | case EV_ABS: |
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| 139 | mousedev_abs_event(handle, list, code, value); |
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| 140 | break; |
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| 141 | |||
| 142 | case EV_REL: |
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| 143 | switch (code) { |
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| 144 | case REL_X: list->dx += value; break; |
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| 145 | case REL_Y: list->dy -= value; break; |
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| 146 | case REL_WHEEL: if (list->mode) list->dz -= value; break; |
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| 147 | } |
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| 148 | break; |
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| 149 | |||
| 150 | case EV_KEY: |
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| 151 | switch (code) { |
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| 152 | case BTN_TOUCH: /* Handle touchpad data */ |
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| 153 | if (test_bit(BTN_TOOL_FINGER, handle->dev->keybit)) { |
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| 154 | list->finger = value; |
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| 155 | return; |
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| 156 | } |
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| 157 | case BTN_0: |
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| 158 | case BTN_FORWARD: |
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| 159 | case BTN_LEFT: index = 0; break; |
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| 160 | case BTN_4: |
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| 161 | case BTN_EXTRA: if (list->mode == 2) { index = 4; break; } |
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| 162 | case BTN_STYLUS: |
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| 163 | case BTN_1: |
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| 164 | case BTN_RIGHT: index = 1; break; |
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| 165 | case BTN_3: |
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| 166 | case BTN_BACK: |
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| 167 | case BTN_SIDE: if (list->mode == 2) { index = 3; break; } |
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| 168 | case BTN_2: |
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| 169 | case BTN_STYLUS2: |
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| 170 | case BTN_MIDDLE: index = 2; break; |
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| 171 | default: return; |
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| 172 | } |
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| 173 | switch (value) { |
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| 174 | case 0: clear_bit(index, &list->buttons); break; |
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| 175 | case 1: set_bit(index, &list->buttons); break; |
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| 176 | case 2: return; |
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| 177 | } |
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| 178 | break; |
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| 179 | |||
| 180 | case EV_SYN: |
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| 181 | switch (code) { |
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| 182 | case SYN_REPORT: |
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| 183 | list->ready = 1; |
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| 184 | kill_fasync(&list->fasync, SIGIO, POLL_IN); |
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| 185 | wake = 1; |
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| 186 | break; |
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| 187 | } |
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| 188 | } |
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| 189 | |||
| 190 | if (wake) |
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| 191 | wake_up_interruptible(&((*mousedev)->wait)); |
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| 192 | |||
| 193 | mousedev++; |
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| 194 | } |
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| 195 | } |
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| 196 | |||
| 197 | static int mousedev_fasync(int fd, struct file *file, int on) |
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| 198 | { |
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| 199 | int retval; |
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| 200 | struct mousedev_list *list = file->private_data; |
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| 201 | retval = fasync_helper(fd, file, on, &list->fasync); |
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| 202 | return retval < 0 ? retval : 0; |
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| 203 | } |
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| 204 | |||
| 205 | static void mousedev_free(struct mousedev *mousedev) |
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| 206 | { |
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| 207 | devfs_remove("input/mouse%d", mousedev->minor); |
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| 208 | mousedev_table[mousedev->minor] = NULL; |
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| 209 | kfree(mousedev); |
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| 210 | } |
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| 211 | |||
| 212 | static int mixdev_release(void) |
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| 213 | { |
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| 214 | struct input_handle *handle; |
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| 215 | |||
| 216 | list_for_each_entry(handle, &mousedev_handler.h_list, h_node) { |
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| 217 | struct mousedev *mousedev = handle->private; |
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| 218 | |||
| 219 | if (!mousedev->open) { |
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| 220 | if (mousedev->exist) |
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| 221 | input_close_device(&mousedev->handle); |
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| 222 | else |
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| 223 | mousedev_free(mousedev); |
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| 224 | } |
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| 225 | } |
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| 226 | |||
| 227 | return 0; |
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| 228 | } |
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| 229 | |||
| 230 | static int mousedev_release(struct inode * inode, struct file * file) |
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| 231 | { |
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| 232 | struct mousedev_list *list = file->private_data; |
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| 233 | |||
| 234 | mousedev_fasync(-1, file, 0); |
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| 235 | |||
| 236 | list_del(&list->node); |
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| 237 | |||
| 238 | if (!--list->mousedev->open) { |
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| 239 | if (list->mousedev->minor == MOUSEDEV_MIX) |
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| 240 | return mixdev_release(); |
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| 241 | |||
| 242 | if (!mousedev_mix.open) { |
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| 243 | if (list->mousedev->exist) |
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| 244 | input_close_device(&list->mousedev->handle); |
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| 245 | else |
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| 246 | mousedev_free(list->mousedev); |
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| 247 | } |
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| 248 | } |
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| 249 | |||
| 250 | kfree(list); |
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| 251 | return 0; |
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| 252 | } |
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| 253 | |||
| 254 | static int mousedev_open(struct inode * inode, struct file * file) |
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| 255 | { |
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| 256 | struct mousedev_list *list; |
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| 257 | struct input_handle *handle; |
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| 258 | struct mousedev *mousedev; |
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| 259 | int i; |
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| 260 | |||
| 261 | #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX |
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| 262 | if (imajor(inode) == MISC_MAJOR) |
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| 263 | i = MOUSEDEV_MIX; |
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| 264 | else |
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| 265 | #endif |
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| 266 | i = iminor(inode) - MOUSEDEV_MINOR_BASE; |
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| 267 | |||
| 268 | if (i >= MOUSEDEV_MINORS || !mousedev_table[i]) |
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| 269 | return -ENODEV; |
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| 270 | |||
| 271 | if (!(list = kmalloc(sizeof(struct mousedev_list), GFP_KERNEL))) |
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| 272 | return -ENOMEM; |
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| 273 | memset(list, 0, sizeof(struct mousedev_list)); |
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| 274 | |||
| 275 | list->mousedev = mousedev_table[i]; |
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| 276 | list_add_tail(&list->node, &mousedev_table[i]->list); |
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| 277 | file->private_data = list; |
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| 278 | |||
| 279 | if (!list->mousedev->open++) { |
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| 280 | if (list->mousedev->minor == MOUSEDEV_MIX) { |
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| 281 | list_for_each_entry(handle, &mousedev_handler.h_list, h_node) { |
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| 282 | mousedev = handle->private; |
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| 283 | if (!mousedev->open && mousedev->exist) |
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| 284 | input_open_device(handle); |
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| 285 | } |
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| 286 | } else |
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| 287 | if (!mousedev_mix.open && list->mousedev->exist) |
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| 288 | input_open_device(&list->mousedev->handle); |
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| 289 | } |
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| 290 | |||
| 291 | return 0; |
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| 292 | } |
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| 293 | |||
| 294 | static void mousedev_packet(struct mousedev_list *list, unsigned char off) |
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| 295 | { |
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| 296 | list->ps2[off] = 0x08 | ((list->dx < 0) << 4) | ((list->dy < 0) << 5) | (list->buttons & 0x07); |
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| 297 | list->ps2[off + 1] = (list->dx > 127 ? 127 : (list->dx < -127 ? -127 : list->dx)); |
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| 298 | list->ps2[off + 2] = (list->dy > 127 ? 127 : (list->dy < -127 ? -127 : list->dy)); |
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| 299 | list->dx -= list->ps2[off + 1]; |
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| 300 | list->dy -= list->ps2[off + 2]; |
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| 301 | list->bufsiz = off + 3; |
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| 302 | |||
| 303 | if (list->mode == 2) { |
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| 304 | list->ps2[off + 3] = (list->dz > 7 ? 7 : (list->dz < -7 ? -7 : list->dz)); |
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| 305 | list->dz -= list->ps2[off + 3]; |
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| 306 | list->ps2[off + 3] = (list->ps2[off + 3] & 0x0f) | ((list->buttons & 0x18) << 1); |
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| 307 | list->bufsiz++; |
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| 308 | } |
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| 309 | |||
| 310 | if (list->mode == 1) { |
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| 311 | list->ps2[off + 3] = (list->dz > 127 ? 127 : (list->dz < -127 ? -127 : list->dz)); |
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| 312 | list->dz -= list->ps2[off + 3]; |
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| 313 | list->bufsiz++; |
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| 314 | } |
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| 315 | |||
| 316 | if (!list->dx && !list->dy && (!list->mode || !list->dz)) list->ready = 0; |
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| 317 | list->buffer = list->bufsiz; |
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| 318 | } |
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| 319 | |||
| 320 | |||
| 321 | static ssize_t mousedev_write(struct file * file, const char * buffer, size_t count, loff_t *ppos) |
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| 322 | { |
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| 323 | struct mousedev_list *list = file->private_data; |
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| 324 | unsigned char c; |
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| 325 | unsigned int i; |
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| 326 | |||
| 327 | for (i = 0; i < count; i++) { |
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| 328 | |||
| 329 | if (get_user(c, buffer + i)) |
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| 330 | return -EFAULT; |
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| 331 | |||
| 332 | if (c == mousedev_imex_seq[list->imexseq]) { |
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| 333 | if (++list->imexseq == MOUSEDEV_SEQ_LEN) { |
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| 334 | list->imexseq = 0; |
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| 335 | list->mode = 2; |
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| 336 | } |
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| 337 | } else list->imexseq = 0; |
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| 338 | |||
| 339 | if (c == mousedev_imps_seq[list->impsseq]) { |
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| 340 | if (++list->impsseq == MOUSEDEV_SEQ_LEN) { |
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| 341 | list->impsseq = 0; |
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| 342 | list->mode = 1; |
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| 343 | } |
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| 344 | } else list->impsseq = 0; |
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| 345 | |||
| 346 | list->ps2[0] = 0xfa; |
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| 347 | list->bufsiz = 1; |
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| 348 | |||
| 349 | switch (c) { |
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| 350 | |||
| 351 | case 0xeb: /* Poll */ |
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| 352 | mousedev_packet(list, 1); |
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| 353 | break; |
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| 354 | |||
| 355 | case 0xf2: /* Get ID */ |
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| 356 | switch (list->mode) { |
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| 357 | case 0: list->ps2[1] = 0; break; |
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| 358 | case 1: list->ps2[1] = 3; break; |
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| 359 | case 2: list->ps2[1] = 4; break; |
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| 360 | } |
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| 361 | list->bufsiz = 2; |
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| 362 | break; |
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| 363 | |||
| 364 | case 0xe9: /* Get info */ |
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| 365 | list->ps2[1] = 0x60; list->ps2[2] = 3; list->ps2[3] = 200; |
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| 366 | list->bufsiz = 4; |
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| 367 | break; |
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| 368 | |||
| 369 | case 0xff: /* Reset */ |
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| 370 | list->impsseq = 0; |
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| 371 | list->imexseq = 0; |
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| 372 | list->mode = 0; |
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| 373 | list->ps2[0] = 0xaa; |
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| 374 | list->ps2[1] = 0x00; |
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| 375 | list->bufsiz = 2; |
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| 376 | break; |
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| 377 | } |
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| 378 | |||
| 379 | list->buffer = list->bufsiz; |
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| 380 | } |
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| 381 | |||
| 382 | kill_fasync(&list->fasync, SIGIO, POLL_IN); |
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| 383 | |||
| 384 | wake_up_interruptible(&list->mousedev->wait); |
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| 385 | |||
| 386 | return count; |
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| 387 | } |
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| 388 | |||
| 389 | static ssize_t mousedev_read(struct file * file, char * buffer, size_t count, loff_t *ppos) |
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| 390 | { |
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| 391 | struct mousedev_list *list = file->private_data; |
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| 392 | int retval = 0; |
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| 393 | |||
| 394 | if (!list->ready && !list->buffer && (file->f_flags & O_NONBLOCK)) |
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| 395 | return -EAGAIN; |
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| 396 | |||
| 397 | retval = wait_event_interruptible(list->mousedev->wait, list->ready || list->buffer); |
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| 398 | |||
| 399 | if (retval) |
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| 400 | return retval; |
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| 401 | |||
| 402 | if (!list->buffer && list->ready) |
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| 403 | mousedev_packet(list, 0); |
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| 404 | |||
| 405 | if (count > list->buffer) |
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| 406 | count = list->buffer; |
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| 407 | |||
| 408 | list->buffer -= count; |
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| 409 | |||
| 410 | if (copy_to_user(buffer, list->ps2 + list->bufsiz - list->buffer - count, count)) |
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| 411 | return -EFAULT; |
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| 412 | |||
| 413 | return count; |
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| 414 | } |
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| 415 | |||
| 416 | /* No kernel lock - fine */ |
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| 417 | static unsigned int mousedev_poll(struct file *file, poll_table *wait) |
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| 418 | { |
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| 419 | struct mousedev_list *list = file->private_data; |
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| 420 | poll_wait(file, &list->mousedev->wait, wait); |
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| 421 | if (list->ready || list->buffer) |
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| 422 | return POLLIN | POLLRDNORM; |
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| 423 | return 0; |
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| 424 | } |
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| 425 | |||
| 426 | struct file_operations mousedev_fops = { |
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| 427 | .owner = THIS_MODULE, |
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| 428 | .read = mousedev_read, |
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| 429 | .write = mousedev_write, |
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| 430 | .poll = mousedev_poll, |
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| 431 | .open = mousedev_open, |
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| 432 | .release = mousedev_release, |
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| 433 | .fasync = mousedev_fasync, |
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| 434 | }; |
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| 435 | |||
| 436 | static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id) |
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| 437 | { |
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| 438 | struct mousedev *mousedev; |
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| 439 | int minor = 0; |
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| 440 | |||
| 441 | for (minor = 0; minor < MOUSEDEV_MINORS && mousedev_table[minor]; minor++); |
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| 442 | if (minor == MOUSEDEV_MINORS) { |
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| 443 | printk(KERN_ERR "mousedev: no more free mousedev devices\n"); |
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| 444 | return NULL; |
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| 445 | } |
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| 446 | |||
| 447 | if (!(mousedev = kmalloc(sizeof(struct mousedev), GFP_KERNEL))) |
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| 448 | return NULL; |
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| 449 | memset(mousedev, 0, sizeof(struct mousedev)); |
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| 450 | |||
| 451 | INIT_LIST_HEAD(&mousedev->list); |
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| 452 | init_waitqueue_head(&mousedev->wait); |
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| 453 | |||
| 454 | mousedev->minor = minor; |
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| 455 | mousedev->exist = 1; |
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| 456 | mousedev->handle.dev = dev; |
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| 457 | mousedev->handle.name = mousedev->name; |
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| 458 | mousedev->handle.handler = handler; |
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| 459 | mousedev->handle.private = mousedev; |
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| 460 | sprintf26(mousedev->name, "mouse%d", minor); |
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| 461 | |||
| 462 | if (mousedev_mix.open) |
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| 463 | input_open_device(&mousedev->handle); |
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| 464 | |||
| 465 | mousedev_table[minor] = mousedev; |
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| 466 | |||
| 467 | devfs_mk_cdev(MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor), |
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| 468 | S_IFCHR|S_IRUGO|S_IWUSR, "input/mouse%d", minor); |
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| 469 | |||
| 470 | return &mousedev->handle; |
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| 471 | } |
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| 472 | |||
| 473 | static void mousedev_disconnect(struct input_handle *handle) |
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| 474 | { |
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| 475 | struct mousedev *mousedev = handle->private; |
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| 476 | |||
| 477 | mousedev->exist = 0; |
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| 478 | |||
| 479 | if (mousedev->open) { |
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| 480 | input_close_device(handle); |
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| 481 | } else { |
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| 482 | if (mousedev_mix.open) |
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| 483 | input_close_device(handle); |
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| 484 | mousedev_free(mousedev); |
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| 485 | } |
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| 486 | } |
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| 487 | |||
| 488 | static struct input_device_id mousedev_ids[] = { |
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| 489 | { |
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| 490 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT, |
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| 491 | .evbit = { BIT(EV_KEY) | BIT(EV_REL) }, |
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| 492 | .keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) }, |
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| 493 | .relbit = { BIT(REL_X) | BIT(REL_Y) }, |
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| 494 | }, /* A mouse like device, at least one button, two relative axes */ |
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| 495 | { |
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| 496 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_RELBIT, |
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| 497 | .evbit = { BIT(EV_KEY) | BIT(EV_REL) }, |
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| 498 | .relbit = { BIT(REL_WHEEL) }, |
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| 499 | }, /* A separate scrollwheel */ |
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| 500 | { |
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| 501 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_ABSBIT, |
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| 502 | .evbit = { BIT(EV_KEY) | BIT(EV_ABS) }, |
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| 503 | .keybit = { [LONG(BTN_TOUCH)] = BIT(BTN_TOUCH) }, |
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| 504 | .absbit = { BIT(ABS_X) | BIT(ABS_Y) }, |
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| 505 | }, /* A tablet like device, at least touch detection, two absolute axes */ |
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| 506 | { |
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| 507 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_ABSBIT, |
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| 508 | .evbit = { BIT(EV_KEY) | BIT(EV_ABS) }, |
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| 509 | .keybit = { [LONG(BTN_TOOL_FINGER)] = BIT(BTN_TOOL_FINGER) }, |
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| 510 | .absbit = { BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) | BIT(ABS_TOOL_WIDTH) }, |
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| 511 | }, /* A touchpad */ |
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| 512 | |||
| 513 | { }, /* Terminating entry */ |
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| 514 | }; |
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| 515 | |||
| 516 | MODULE_DEVICE_TABLE(input, mousedev_ids); |
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| 517 | |||
| 518 | static struct input_handler mousedev_handler = { |
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| 519 | .event = mousedev_event, |
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| 520 | .connect = mousedev_connect, |
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| 521 | .disconnect = mousedev_disconnect, |
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| 522 | .fops = &mousedev_fops, |
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| 523 | .minor = MOUSEDEV_MINOR_BASE, |
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| 524 | .name = "mousedev", |
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| 525 | .id_table = mousedev_ids, |
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| 526 | }; |
||
| 527 | |||
| 528 | #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX |
||
| 529 | static struct miscdevice psaux_mouse = { |
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| 530 | PSMOUSE_MINOR, "psaux", &mousedev_fops |
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| 531 | }; |
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| 532 | #endif |
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| 533 | |||
| 534 | /*static*/ int __init mousedev_init(void) |
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| 535 | { |
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| 536 | input_register_handler(&mousedev_handler); |
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| 537 | |||
| 538 | memset(&mousedev_mix, 0, sizeof(struct mousedev)); |
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| 539 | INIT_LIST_HEAD(&mousedev_mix.list); |
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| 540 | init_waitqueue_head(&mousedev_mix.wait); |
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| 541 | mousedev_table[MOUSEDEV_MIX] = &mousedev_mix; |
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| 542 | mousedev_mix.exist = 1; |
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| 543 | mousedev_mix.minor = MOUSEDEV_MIX; |
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| 544 | |||
| 545 | devfs_mk_cdev(MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX), |
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| 546 | S_IFCHR|S_IRUGO|S_IWUSR, "input/mice"); |
||
| 547 | |||
| 548 | |||
| 549 | #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX |
||
| 550 | if (!(mousedev_mix.misc = !misc_register(&psaux_mouse))) |
||
| 551 | printk(KERN_WARNING "mice: could not misc_register the device\n"); |
||
| 552 | #endif |
||
| 553 | |||
| 554 | printk(KERN_INFO "mice: PS/2 mouse device common for all mice\n"); |
||
| 555 | |||
| 556 | return 0; |
||
| 557 | } |
||
| 558 | |||
| 559 | /*static*/ void __exit mousedev_exit(void) |
||
| 560 | { |
||
| 561 | #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX |
||
| 562 | if (mousedev_mix.misc) |
||
| 563 | misc_deregister(&psaux_mouse); |
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| 564 | #endif |
||
| 565 | devfs_remove("input/mice"); |
||
| 566 | input_unregister_handler(&mousedev_handler); |
||
| 567 | } |
||
| 568 | |||
| 569 | module_init(mousedev_init); |
||
| 570 | module_exit(mousedev_exit); |
||
| 571 | |||
| 572 | MODULE_PARM(xres, "i"); |
||
| 573 | MODULE_PARM_DESC(xres, "Horizontal screen resolution"); |
||
| 574 | MODULE_PARM(yres, "i"); |
||
| 575 | MODULE_PARM_DESC(yres, "Vertical screen resolution"); |