Rev 523 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 519 | mauro | 1 | /* |
| 538 | mauro | 2 | * Input driver mouse module |
| 519 | mauro | 3 | */ |
| 4 | |||
| 5 | /* |
||
| 6 | * This program is free software; you can redistribute it and/or modify |
||
| 7 | * it under the terms of the GNU General Public License as published by |
||
| 8 | * the Free Software Foundation; either version 2 of the License, or |
||
| 9 | * (at your option) any later version. |
||
| 10 | * |
||
| 11 | * This program is distributed in the hope that it will be useful, |
||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||
| 14 | * GNU General Public License for more details. |
||
| 15 | */ |
||
| 16 | |||
| 17 | #include <linuxcomp.h> |
||
| 18 | |||
| 19 | #include <linux/slab.h> |
||
| 20 | #include <linux/module.h> |
||
| 21 | #include <linux/input.h> |
||
| 22 | #include <linux/init.h> |
||
| 23 | #include <linux/device.h> |
||
| 24 | |||
| 523 | mauro | 25 | //#define DEBUG_MOUSE |
| 519 | mauro | 26 | |
| 27 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); |
||
| 538 | mauro | 28 | MODULE_DESCRIPTION("Input driver mouse module"); |
| 519 | mauro | 29 | MODULE_LICENSE("GPL"); |
| 30 | |||
| 523 | mauro | 31 | extern void shark_mouse_exec(void); |
| 519 | mauro | 32 | |
| 33 | #ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_X |
||
| 34 | #define CONFIG_INPUT_MOUSEDEV_SCREEN_X 1024 |
||
| 35 | #endif |
||
| 36 | #ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_Y |
||
| 37 | #define CONFIG_INPUT_MOUSEDEV_SCREEN_Y 768 |
||
| 38 | #endif |
||
| 39 | |||
| 40 | static int xres = CONFIG_INPUT_MOUSEDEV_SCREEN_X; |
||
| 41 | static int yres = CONFIG_INPUT_MOUSEDEV_SCREEN_Y; |
||
| 42 | |||
| 43 | /* Buffer Ssize */ |
||
| 44 | #define MOUSE_BUFFERSIZE 256 |
||
| 45 | |||
| 46 | /* Buffer Mask ( i=(i+1)&MASK is better than i=(i+1)%SIZE ) */ |
||
| 47 | #define MOUSE_BUFFERMASK 0xff |
||
| 48 | |||
| 49 | /* Circular Buffer */ |
||
| 50 | static struct mouse_event { |
||
| 51 | unsigned long buttons; |
||
| 52 | int dx, dy, dz; |
||
| 53 | } mbuffer[MOUSE_BUFFERSIZE]; |
||
| 54 | |||
| 55 | /* |
||
| 56 | * Buffer Pointers |
||
| 57 | * data is inserted to mhead |
||
| 58 | * data is kept from mtail+1 |
||
| 59 | * (mhead point to mtail+1 when buffer is empty) |
||
| 60 | */ |
||
| 61 | static unsigned mtail, mhead; |
||
| 62 | |||
| 63 | static char mouse_name[] = "mouse"; |
||
| 64 | |||
| 65 | struct mouse_list { |
||
| 66 | int dx, dy, dz, oldx, oldy; |
||
| 67 | signed char ps2[6]; |
||
| 68 | unsigned long buttons; |
||
| 69 | /*unsigned char ready, buffer, bufsiz; |
||
| 70 | unsigned char mode, imexseq, impsseq;*/ |
||
| 71 | int finger; |
||
| 72 | }; |
||
| 73 | |||
| 74 | static struct mouse_list m_list; |
||
| 75 | static struct mouse_list *list = &m_list; |
||
| 76 | |||
| 77 | /* |
||
| 78 | * Get data from the mouse |
||
| 79 | * |
||
| 80 | * it's follow the port_receive() semantic |
||
| 81 | */ |
||
| 82 | int mouse_get(int *dx, int *dy, int *dz, unsigned long *buttons) |
||
| 83 | { |
||
| 84 | if ( ((mtail+1) & MOUSE_BUFFERMASK) == ((mhead) & MOUSE_BUFFERMASK) ) |
||
| 85 | return -1; |
||
| 86 | |||
| 87 | mtail = (mtail+1) & MOUSE_BUFFERMASK; |
||
| 88 | |||
| 89 | *dx = mbuffer[mtail].dx; |
||
| 90 | *dy = mbuffer[mtail].dy; |
||
| 523 | mauro | 91 | *dz = mbuffer[mtail].dz; |
| 519 | mauro | 92 | *buttons = mbuffer[mtail].buttons; |
| 93 | |||
| 523 | mauro | 94 | #ifdef DEBUG_MOUSE |
| 95 | printk(KERN_DEBUG "mouse.c: ( %3d %3d %3d - %6x)\n", mbuffer[mtail].dx, mbuffer[mtail].dy, mbuffer[mtail].dz, (int)mbuffer[mtail].buttons); |
||
| 96 | printk(KERN_DEBUG "mouse.c: ( %3d %3d %3d - %6x)\n", *dx, *dy, *dz, *(int *)buttons); |
||
| 97 | #endif |
||
| 519 | mauro | 98 | return 0; |
| 99 | } |
||
| 100 | |||
| 101 | static void mouse_abs_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) |
||
| 102 | { |
||
| 103 | int size; |
||
| 104 | |||
| 105 | /* Ignore joysticks */ |
||
| 106 | if (test_bit(BTN_TRIGGER, handle->dev->keybit)) |
||
| 107 | return; |
||
| 108 | |||
| 109 | /* Handle touchpad data */ |
||
| 110 | if (test_bit(BTN_TOOL_FINGER, handle->dev->keybit)) { |
||
| 111 | |||
| 112 | if (list->finger && list->finger < 3) |
||
| 113 | list->finger++; |
||
| 114 | |||
| 115 | switch (code) { |
||
| 116 | case ABS_X: |
||
| 117 | if (list->finger == 3) |
||
| 118 | list->dx += (value - list->oldx) / 8; |
||
| 119 | list->oldx = value; |
||
| 120 | return; |
||
| 121 | case ABS_Y: |
||
| 122 | if (list->finger == 3) |
||
| 123 | list->dy -= (value - list->oldy) / 8; |
||
| 124 | list->oldy = value; |
||
| 125 | return; |
||
| 126 | } |
||
| 127 | return; |
||
| 128 | } |
||
| 129 | |||
| 130 | /* Handle tablet data */ |
||
| 131 | switch (code) { |
||
| 132 | case ABS_X: |
||
| 133 | size = handle->dev->absmax[ABS_X] - handle->dev->absmin[ABS_X]; |
||
| 134 | if (size == 0) size = xres; |
||
| 135 | list->dx += (value * xres - list->oldx) / size; |
||
| 136 | list->oldx += list->dx * size; |
||
| 137 | return; |
||
| 138 | case ABS_Y: |
||
| 139 | size = handle->dev->absmax[ABS_Y] - handle->dev->absmin[ABS_Y]; |
||
| 140 | if (size == 0) size = yres; |
||
| 141 | list->dy -= (value * yres - list->oldy) / size; |
||
| 142 | list->oldy -= list->dy * size; |
||
| 143 | return; |
||
| 144 | } |
||
| 145 | } |
||
| 146 | |||
| 147 | static void mouse_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) |
||
| 148 | { |
||
| 149 | int index; |
||
| 150 | |||
| 151 | #ifdef DEBUG_MOUSE |
||
| 152 | printk(KERN_DEBUG "mouse.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", handle->dev->phys, type, code, value); |
||
| 153 | #endif |
||
| 154 | |||
| 155 | switch (type) { |
||
| 156 | case EV_ABS: |
||
| 157 | mouse_abs_event(handle, type, code, value); |
||
| 158 | break; |
||
| 159 | |||
| 160 | case EV_REL: |
||
| 161 | switch (code) { |
||
| 162 | case REL_X: list->dx += value; break; |
||
| 163 | case REL_Y: list->dy -= value; break; |
||
| 164 | case REL_WHEEL: list->dz -= value; break; |
||
| 165 | } |
||
| 166 | break; |
||
| 167 | |||
| 168 | case EV_KEY: |
||
| 169 | switch (code) { |
||
| 170 | case BTN_TOUCH: /* Handle touchpad data */ |
||
| 171 | if (test_bit(BTN_TOOL_FINGER, handle->dev->keybit)) { |
||
| 172 | list->finger = value; |
||
| 173 | return; |
||
| 174 | } |
||
| 175 | case BTN_0: |
||
| 176 | case BTN_FORWARD: |
||
| 177 | case BTN_LEFT: index = 0; break; |
||
| 178 | case BTN_4: |
||
| 179 | case BTN_EXTRA: index = 4; break; |
||
| 180 | case BTN_STYLUS: |
||
| 181 | case BTN_1: |
||
| 182 | case BTN_RIGHT: index = 1; break; |
||
| 183 | case BTN_3: |
||
| 184 | case BTN_BACK: |
||
| 185 | case BTN_SIDE: index = 3; break; |
||
| 186 | case BTN_2: |
||
| 187 | case BTN_STYLUS2: |
||
| 188 | case BTN_MIDDLE: index = 2; break; |
||
| 189 | default: return; |
||
| 190 | } |
||
| 191 | switch (value) { |
||
| 192 | case 0: clear_bit(index, &list->buttons); break; |
||
| 193 | case 1: set_bit(index, &list->buttons); break; |
||
| 194 | case 2: return; |
||
| 195 | } |
||
| 196 | break; |
||
| 197 | |||
| 198 | case EV_SYN: |
||
| 199 | switch (code) { |
||
| 200 | case SYN_REPORT: |
||
| 201 | if (mtail != mhead) { |
||
| 202 | mbuffer[mhead].buttons = list->buttons; |
||
| 203 | mbuffer[mhead].dx = list->dx; |
||
| 204 | mbuffer[mhead].dy = list->dy; |
||
| 205 | mbuffer[mhead].dz = list->dz; |
||
| 206 | mhead = (mhead+1) & MOUSE_BUFFERMASK; |
||
| 523 | mauro | 207 | list->dx = list->dy = list->dz = 0; |
| 519 | mauro | 208 | } |
| 523 | mauro | 209 | shark_mouse_exec(); |
| 519 | mauro | 210 | break; |
| 211 | } |
||
| 212 | } |
||
| 213 | } |
||
| 214 | |||
| 215 | static struct input_handle *mouse_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id) |
||
| 216 | { |
||
| 217 | struct input_handle *handle; |
||
| 218 | |||
| 219 | if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL))) |
||
| 220 | return NULL; |
||
| 221 | memset(handle, 0, sizeof(struct input_handle)); |
||
| 222 | |||
| 223 | handle->dev = dev; |
||
| 224 | handle->handler = handler; |
||
| 225 | handle->name = mouse_name; |
||
| 226 | |||
| 227 | input_open_device(handle); |
||
| 228 | |||
| 229 | #ifdef DEBUG_MOUSE |
||
| 230 | printk(KERN_DEBUG "mouse.c: Connected device: \"%s\", %s\n", dev->name, dev->phys); |
||
| 231 | #endif |
||
| 232 | |||
| 233 | return handle; |
||
| 234 | } |
||
| 235 | |||
| 236 | static void mouse_disconnect(struct input_handle *handle) |
||
| 237 | { |
||
| 238 | #ifdef DEBUG_MOUSE |
||
| 239 | printk(KERN_DEBUG "mouse.c: Disconnected device: %s\n", handle->dev->phys); |
||
| 240 | #endif |
||
| 241 | |||
| 242 | input_close_device(handle); |
||
| 243 | |||
| 244 | kfree(handle); |
||
| 245 | } |
||
| 246 | |||
| 247 | static struct input_device_id mouse_ids[] = { |
||
| 248 | { |
||
| 249 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT, |
||
| 250 | .evbit = { BIT(EV_KEY) | BIT(EV_REL) }, |
||
| 251 | .keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) }, |
||
| 252 | .relbit = { BIT(REL_X) | BIT(REL_Y) }, |
||
| 253 | }, // A mouse like device, at least one button, two relative axes |
||
| 254 | { |
||
| 255 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_RELBIT, |
||
| 256 | .evbit = { BIT(EV_KEY) | BIT(EV_REL) }, |
||
| 257 | .relbit = { BIT(REL_WHEEL) }, |
||
| 258 | }, // A separate scrollwheel |
||
| 259 | { |
||
| 260 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_ABSBIT, |
||
| 261 | .evbit = { BIT(EV_KEY) | BIT(EV_ABS) }, |
||
| 262 | .keybit = { [LONG(BTN_TOUCH)] = BIT(BTN_TOUCH) }, |
||
| 263 | .absbit = { BIT(ABS_X) | BIT(ABS_Y) }, |
||
| 264 | }, // A tablet like device, at least touch detection, two absolute axes |
||
| 265 | { |
||
| 266 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_ABSBIT, |
||
| 267 | .evbit = { BIT(EV_KEY) | BIT(EV_ABS) }, |
||
| 268 | .keybit = { [LONG(BTN_TOOL_FINGER)] = BIT(BTN_TOOL_FINGER) }, |
||
| 269 | .absbit = { BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) | BIT(ABS_TOOL_WIDTH) }, |
||
| 270 | }, // A touchpad |
||
| 271 | |||
| 272 | { }, // Terminating entry |
||
| 273 | }; |
||
| 274 | |||
| 275 | MODULE_DEVICE_TABLE(input, mouse_ids); |
||
| 276 | |||
| 277 | static struct input_handler mouse_handler = { |
||
| 278 | .event = mouse_event, |
||
| 279 | .connect = mouse_connect, |
||
| 280 | .disconnect = mouse_disconnect, |
||
| 281 | .name = "mouse", |
||
| 282 | .id_table = mouse_ids, |
||
| 283 | }; |
||
| 284 | |||
| 285 | int __init mouse_init(void) |
||
| 286 | { |
||
| 523 | mauro | 287 | /* Initialize Buffer Variables */ |
| 288 | mhead=1; |
||
| 289 | mtail=0; |
||
| 290 | |||
| 519 | mauro | 291 | input_register_handler(&mouse_handler); |
| 292 | return 0; |
||
| 293 | } |
||
| 294 | |||
| 295 | void __exit mouse_exit(void) |
||
| 296 | { |
||
| 297 | input_unregister_handler(&mouse_handler); |
||
| 298 | } |
||
| 299 | |||
| 300 | module_init(mouse_init); |
||
| 301 | module_exit(mouse_exit); |