1 /* 2 * USB ATI Remote support 3 * 4 * Copyright (c) 2011 Anssi Hannula <anssi.hannula@iki.fi> 5 * Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net> 6 * Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev 7 * 8 * This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including 9 * porting to the 2.6 kernel interfaces, along with other modification 10 * to better match the style of the existing usb/input drivers. However, the 11 * protocol and hardware handling is essentially unchanged from 2.1.1. 12 * 13 * The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by 14 * Vojtech Pavlik. 15 * 16 * Changes: 17 * 18 * Feb 2004: Torrey Hoffman <thoffman@arnor.net> 19 * Version 2.2.0 20 * Jun 2004: Torrey Hoffman <thoffman@arnor.net> 21 * Version 2.2.1 22 * Added key repeat support contributed by: 23 * Vincent Vanackere <vanackere@lif.univ-mrs.fr> 24 * Added support for the "Lola" remote contributed by: 25 * Seth Cohn <sethcohn@yahoo.com> 26 * 27 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 28 * 29 * This program is free software; you can redistribute it and/or modify 30 * it under the terms of the GNU General Public License as published by 31 * the Free Software Foundation; either version 2 of the License, or 32 * (at your option) any later version. 33 * 34 * This program is distributed in the hope that it will be useful, 35 * but WITHOUT ANY WARRANTY; without even the implied warranty of 36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 37 * GNU General Public License for more details. 38 * 39 * You should have received a copy of the GNU General Public License 40 * along with this program; if not, write to the Free Software 41 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 42 * 43 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 44 * 45 * Hardware & software notes 46 * 47 * These remote controls are distributed by ATI as part of their 48 * "All-In-Wonder" video card packages. The receiver self-identifies as a 49 * "USB Receiver" with manufacturer "X10 Wireless Technology Inc". 50 * 51 * The "Lola" remote is available from X10. See: 52 * http://www.x10.com/products/lola_sg1.htm 53 * The Lola is similar to the ATI remote but has no mouse support, and slightly 54 * different keys. 55 * 56 * It is possible to use multiple receivers and remotes on multiple computers 57 * simultaneously by configuring them to use specific channels. 58 * 59 * The RF protocol used by the remote supports 16 distinct channels, 1 to 16. 60 * Actually, it may even support more, at least in some revisions of the 61 * hardware. 62 * 63 * Each remote can be configured to transmit on one channel as follows: 64 * - Press and hold the "hand icon" button. 65 * - When the red LED starts to blink, let go of the "hand icon" button. 66 * - When it stops blinking, input the channel code as two digits, from 01 67 * to 16, and press the hand icon again. 68 * 69 * The timing can be a little tricky. Try loading the module with debug=1 70 * to have the kernel print out messages about the remote control number 71 * and mask. Note: debugging prints remote numbers as zero-based hexadecimal. 72 * 73 * The driver has a "channel_mask" parameter. This bitmask specifies which 74 * channels will be ignored by the module. To mask out channels, just add 75 * all the 2^channel_number values together. 76 * 77 * For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote 78 * ignore signals coming from remote controls transmitting on channel 4, but 79 * accept all other channels. 80 * 81 * Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be 82 * ignored. 83 * 84 * The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this 85 * parameter are unused. 86 * 87 */ 88 89 #include <linux/kernel.h> 90 #include <linux/errno.h> 91 #include <linux/init.h> 92 #include <linux/slab.h> 93 #include <linux/module.h> 94 #include <linux/mutex.h> 95 #include <linux/usb/input.h> 96 #include <linux/wait.h> 97 #include <linux/jiffies.h> 98 #include <media/rc-core.h> 99 100 /* 101 * Module and Version Information, Module Parameters 102 */ 103 104 #define ATI_REMOTE_VENDOR_ID 0x0bc7 105 #define LOLA_REMOTE_PRODUCT_ID 0x0002 106 #define LOLA2_REMOTE_PRODUCT_ID 0x0003 107 #define ATI_REMOTE_PRODUCT_ID 0x0004 108 #define NVIDIA_REMOTE_PRODUCT_ID 0x0005 109 #define MEDION_REMOTE_PRODUCT_ID 0x0006 110 #define FIREFLY_REMOTE_PRODUCT_ID 0x0008 111 112 #define DRIVER_VERSION "2.2.1" 113 #define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>" 114 #define DRIVER_DESC "ATI/X10 RF USB Remote Control" 115 116 #define NAME_BUFSIZE 80 /* size of product name, path buffers */ 117 #define DATA_BUFSIZE 63 /* size of URB data buffers */ 118 119 /* 120 * Duplicate event filtering time. 121 * Sequential, identical KIND_FILTERED inputs with less than 122 * FILTER_TIME milliseconds between them are considered as repeat 123 * events. The hardware generates 5 events for the first keypress 124 * and we have to take this into account for an accurate repeat 125 * behaviour. 126 */ 127 #define FILTER_TIME 60 /* msec */ 128 #define REPEAT_DELAY 500 /* msec */ 129 130 static unsigned long channel_mask; 131 module_param(channel_mask, ulong, 0644); 132 MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore"); 133 134 static int debug; 135 module_param(debug, int, 0644); 136 MODULE_PARM_DESC(debug, "Enable extra debug messages and information"); 137 138 static int repeat_filter = FILTER_TIME; 139 module_param(repeat_filter, int, 0644); 140 MODULE_PARM_DESC(repeat_filter, "Repeat filter time, default = 60 msec"); 141 142 static int repeat_delay = REPEAT_DELAY; 143 module_param(repeat_delay, int, 0644); 144 MODULE_PARM_DESC(repeat_delay, "Delay before sending repeats, default = 500 msec"); 145 146 static bool mouse = true; 147 module_param(mouse, bool, 0444); 148 MODULE_PARM_DESC(mouse, "Enable mouse device, default = yes"); 149 150 #define dbginfo(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0) 151 #undef err 152 #define err(format, arg...) printk(KERN_ERR format , ## arg) 153 154 static struct usb_device_id ati_remote_table[] = { 155 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)RC_MAP_ATI_X10 }, 156 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA2_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)RC_MAP_ATI_X10 }, 157 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)RC_MAP_ATI_X10 }, 158 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, NVIDIA_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)RC_MAP_ATI_X10 }, 159 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)RC_MAP_MEDION_X10 }, 160 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, FIREFLY_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)RC_MAP_SNAPSTREAM_FIREFLY }, 161 {} /* Terminating entry */ 162 }; 163 164 MODULE_DEVICE_TABLE(usb, ati_remote_table); 165 166 /* Get hi and low bytes of a 16-bits int */ 167 #define HI(a) ((unsigned char)((a) >> 8)) 168 #define LO(a) ((unsigned char)((a) & 0xff)) 169 170 #define SEND_FLAG_IN_PROGRESS 1 171 #define SEND_FLAG_COMPLETE 2 172 173 /* Device initialization strings */ 174 static char init1[] = { 0x01, 0x00, 0x20, 0x14 }; 175 static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 }; 176 177 struct ati_remote { 178 struct input_dev *idev; 179 struct rc_dev *rdev; 180 struct usb_device *udev; 181 struct usb_interface *interface; 182 183 struct urb *irq_urb; 184 struct urb *out_urb; 185 struct usb_endpoint_descriptor *endpoint_in; 186 struct usb_endpoint_descriptor *endpoint_out; 187 unsigned char *inbuf; 188 unsigned char *outbuf; 189 dma_addr_t inbuf_dma; 190 dma_addr_t outbuf_dma; 191 192 unsigned char old_data; /* Detect duplicate events */ 193 unsigned long old_jiffies; 194 unsigned long acc_jiffies; /* handle acceleration */ 195 unsigned long first_jiffies; 196 197 unsigned int repeat_count; 198 199 char rc_name[NAME_BUFSIZE]; 200 char rc_phys[NAME_BUFSIZE]; 201 char mouse_name[NAME_BUFSIZE]; 202 char mouse_phys[NAME_BUFSIZE]; 203 204 wait_queue_head_t wait; 205 int send_flags; 206 207 int users; /* 0-2, users are rc and input */ 208 struct mutex open_mutex; 209 }; 210 211 /* "Kinds" of messages sent from the hardware to the driver. */ 212 #define KIND_END 0 213 #define KIND_LITERAL 1 /* Simply pass to input system */ 214 #define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */ 215 #define KIND_LU 3 /* Directional keypad diagonals - left up, */ 216 #define KIND_RU 4 /* right up, */ 217 #define KIND_LD 5 /* left down, */ 218 #define KIND_RD 6 /* right down */ 219 #define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/ 220 221 /* Translation table from hardware messages to input events. */ 222 static const struct { 223 short kind; 224 unsigned char data; 225 int type; 226 unsigned int code; 227 int value; 228 } ati_remote_tbl[] = { 229 /* Directional control pad axes */ 230 {KIND_ACCEL, 0x70, EV_REL, REL_X, -1}, /* left */ 231 {KIND_ACCEL, 0x71, EV_REL, REL_X, 1}, /* right */ 232 {KIND_ACCEL, 0x72, EV_REL, REL_Y, -1}, /* up */ 233 {KIND_ACCEL, 0x73, EV_REL, REL_Y, 1}, /* down */ 234 /* Directional control pad diagonals */ 235 {KIND_LU, 0x74, EV_REL, 0, 0}, /* left up */ 236 {KIND_RU, 0x75, EV_REL, 0, 0}, /* right up */ 237 {KIND_LD, 0x77, EV_REL, 0, 0}, /* left down */ 238 {KIND_RD, 0x76, EV_REL, 0, 0}, /* right down */ 239 240 /* "Mouse button" buttons */ 241 {KIND_LITERAL, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */ 242 {KIND_LITERAL, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */ 243 {KIND_LITERAL, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */ 244 {KIND_LITERAL, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */ 245 246 /* Artificial "doubleclick" events are generated by the hardware. 247 * They are mapped to the "side" and "extra" mouse buttons here. */ 248 {KIND_FILTERED, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */ 249 {KIND_FILTERED, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */ 250 251 /* Non-mouse events are handled by rc-core */ 252 {KIND_END, 0x00, EV_MAX + 1, 0, 0} 253 }; 254 255 /* Local function prototypes */ 256 static int ati_remote_sendpacket (struct ati_remote *ati_remote, u16 cmd, unsigned char *data); 257 static void ati_remote_irq_out (struct urb *urb); 258 static void ati_remote_irq_in (struct urb *urb); 259 static void ati_remote_input_report (struct urb *urb); 260 static int ati_remote_initialize (struct ati_remote *ati_remote); 261 static int ati_remote_probe (struct usb_interface *interface, const struct usb_device_id *id); 262 static void ati_remote_disconnect (struct usb_interface *interface); 263 264 /* usb specific object to register with the usb subsystem */ 265 static struct usb_driver ati_remote_driver = { 266 .name = "ati_remote", 267 .probe = ati_remote_probe, 268 .disconnect = ati_remote_disconnect, 269 .id_table = ati_remote_table, 270 }; 271 272 /* 273 * ati_remote_dump_input 274 */ 275 static void ati_remote_dump(struct device *dev, unsigned char *data, 276 unsigned int len) 277 { 278 if (len == 1) { 279 if (data[0] != (unsigned char)0xff && data[0] != 0x00) 280 dev_warn(dev, "Weird byte 0x%02x\n", data[0]); 281 } else if (len == 4) 282 dev_warn(dev, "Weird key %02x %02x %02x %02x\n", 283 data[0], data[1], data[2], data[3]); 284 else 285 dev_warn(dev, "Weird data, len=%d %02x %02x %02x %02x %02x %02x ...\n", 286 len, data[0], data[1], data[2], data[3], data[4], data[5]); 287 } 288 289 /* 290 * ati_remote_open 291 */ 292 static int ati_remote_open(struct ati_remote *ati_remote) 293 { 294 int err = 0; 295 296 mutex_lock(&ati_remote->open_mutex); 297 298 if (ati_remote->users++ != 0) 299 goto out; /* one was already active */ 300 301 /* On first open, submit the read urb which was set up previously. */ 302 ati_remote->irq_urb->dev = ati_remote->udev; 303 if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) { 304 dev_err(&ati_remote->interface->dev, 305 "%s: usb_submit_urb failed!\n", __func__); 306 err = -EIO; 307 } 308 309 out: mutex_unlock(&ati_remote->open_mutex); 310 return err; 311 } 312 313 /* 314 * ati_remote_close 315 */ 316 static void ati_remote_close(struct ati_remote *ati_remote) 317 { 318 mutex_lock(&ati_remote->open_mutex); 319 if (--ati_remote->users == 0) 320 usb_kill_urb(ati_remote->irq_urb); 321 mutex_unlock(&ati_remote->open_mutex); 322 } 323 324 static int ati_remote_input_open(struct input_dev *inputdev) 325 { 326 struct ati_remote *ati_remote = input_get_drvdata(inputdev); 327 return ati_remote_open(ati_remote); 328 } 329 330 static void ati_remote_input_close(struct input_dev *inputdev) 331 { 332 struct ati_remote *ati_remote = input_get_drvdata(inputdev); 333 ati_remote_close(ati_remote); 334 } 335 336 static int ati_remote_rc_open(struct rc_dev *rdev) 337 { 338 struct ati_remote *ati_remote = rdev->priv; 339 return ati_remote_open(ati_remote); 340 } 341 342 static void ati_remote_rc_close(struct rc_dev *rdev) 343 { 344 struct ati_remote *ati_remote = rdev->priv; 345 ati_remote_close(ati_remote); 346 } 347 348 /* 349 * ati_remote_irq_out 350 */ 351 static void ati_remote_irq_out(struct urb *urb) 352 { 353 struct ati_remote *ati_remote = urb->context; 354 355 if (urb->status) { 356 dev_dbg(&ati_remote->interface->dev, "%s: status %d\n", 357 __func__, urb->status); 358 return; 359 } 360 361 ati_remote->send_flags |= SEND_FLAG_COMPLETE; 362 wmb(); 363 wake_up(&ati_remote->wait); 364 } 365 366 /* 367 * ati_remote_sendpacket 368 * 369 * Used to send device initialization strings 370 */ 371 static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigned char *data) 372 { 373 int retval = 0; 374 375 /* Set up out_urb */ 376 memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd)); 377 ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd); 378 379 ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1; 380 ati_remote->out_urb->dev = ati_remote->udev; 381 ati_remote->send_flags = SEND_FLAG_IN_PROGRESS; 382 383 retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC); 384 if (retval) { 385 dev_dbg(&ati_remote->interface->dev, 386 "sendpacket: usb_submit_urb failed: %d\n", retval); 387 return retval; 388 } 389 390 wait_event_timeout(ati_remote->wait, 391 ((ati_remote->out_urb->status != -EINPROGRESS) || 392 (ati_remote->send_flags & SEND_FLAG_COMPLETE)), 393 HZ); 394 usb_kill_urb(ati_remote->out_urb); 395 396 return retval; 397 } 398 399 /* 400 * ati_remote_compute_accel 401 * 402 * Implements acceleration curve for directional control pad 403 * If elapsed time since last event is > 1/4 second, user "stopped", 404 * so reset acceleration. Otherwise, user is probably holding the control 405 * pad down, so we increase acceleration, ramping up over two seconds to 406 * a maximum speed. 407 */ 408 static int ati_remote_compute_accel(struct ati_remote *ati_remote) 409 { 410 static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 }; 411 unsigned long now = jiffies; 412 int acc; 413 414 if (time_after(now, ati_remote->old_jiffies + msecs_to_jiffies(250))) { 415 acc = 1; 416 ati_remote->acc_jiffies = now; 417 } 418 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(125))) 419 acc = accel[0]; 420 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(250))) 421 acc = accel[1]; 422 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(500))) 423 acc = accel[2]; 424 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1000))) 425 acc = accel[3]; 426 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1500))) 427 acc = accel[4]; 428 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(2000))) 429 acc = accel[5]; 430 else 431 acc = accel[6]; 432 433 return acc; 434 } 435 436 /* 437 * ati_remote_report_input 438 */ 439 static void ati_remote_input_report(struct urb *urb) 440 { 441 struct ati_remote *ati_remote = urb->context; 442 unsigned char *data= ati_remote->inbuf; 443 struct input_dev *dev = ati_remote->idev; 444 int index = -1; 445 int acc; 446 int remote_num; 447 unsigned char scancode; 448 int i; 449 450 /* 451 * data[0] = 0x14 452 * data[1] = data[2] + data[3] + 0xd5 (a checksum byte) 453 * data[2] = the key code (with toggle bit in MSB with some models) 454 * data[3] = channel << 4 (the low 4 bits must be zero) 455 */ 456 457 /* Deal with strange looking inputs */ 458 if ( (urb->actual_length != 4) || (data[0] != 0x14) || 459 ((data[3] & 0x0f) != 0x00) ) { 460 ati_remote_dump(&urb->dev->dev, data, urb->actual_length); 461 return; 462 } 463 464 if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) { 465 dbginfo(&ati_remote->interface->dev, 466 "wrong checksum in input: %02x %02x %02x %02x\n", 467 data[0], data[1], data[2], data[3]); 468 return; 469 } 470 471 /* Mask unwanted remote channels. */ 472 /* note: remote_num is 0-based, channel 1 on remote == 0 here */ 473 remote_num = (data[3] >> 4) & 0x0f; 474 if (channel_mask & (1 << (remote_num + 1))) { 475 dbginfo(&ati_remote->interface->dev, 476 "Masked input from channel 0x%02x: data %02x,%02x, mask= 0x%02lx\n", 477 remote_num, data[1], data[2], channel_mask); 478 return; 479 } 480 481 /* 482 * MSB is a toggle code, though only used by some devices 483 * (e.g. SnapStream Firefly) 484 */ 485 scancode = data[2] & 0x7f; 486 487 /* Look up event code index in the mouse translation table. */ 488 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { 489 if (scancode == ati_remote_tbl[i].data) { 490 index = i; 491 break; 492 } 493 } 494 495 if (index >= 0) { 496 dbginfo(&ati_remote->interface->dev, 497 "channel 0x%02x; mouse data %02x; index %d; keycode %d\n", 498 remote_num, data[2], index, ati_remote_tbl[index].code); 499 if (!dev) 500 return; /* no mouse device */ 501 } else 502 dbginfo(&ati_remote->interface->dev, 503 "channel 0x%02x; key data %02x, scancode %02x\n", 504 remote_num, data[2], scancode); 505 506 507 if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) { 508 input_event(dev, ati_remote_tbl[index].type, 509 ati_remote_tbl[index].code, 510 ati_remote_tbl[index].value); 511 input_sync(dev); 512 513 ati_remote->old_jiffies = jiffies; 514 return; 515 } 516 517 if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) { 518 unsigned long now = jiffies; 519 520 /* Filter duplicate events which happen "too close" together. */ 521 if (ati_remote->old_data == data[2] && 522 time_before(now, ati_remote->old_jiffies + 523 msecs_to_jiffies(repeat_filter))) { 524 ati_remote->repeat_count++; 525 } else { 526 ati_remote->repeat_count = 0; 527 ati_remote->first_jiffies = now; 528 } 529 530 ati_remote->old_data = data[2]; 531 ati_remote->old_jiffies = now; 532 533 /* Ensure we skip at least the 4 first duplicate events (generated 534 * by a single keypress), and continue skipping until repeat_delay 535 * msecs have passed 536 */ 537 if (ati_remote->repeat_count > 0 && 538 (ati_remote->repeat_count < 5 || 539 time_before(now, ati_remote->first_jiffies + 540 msecs_to_jiffies(repeat_delay)))) 541 return; 542 543 if (index < 0) { 544 /* Not a mouse event, hand it to rc-core. */ 545 546 /* 547 * We don't use the rc-core repeat handling yet as 548 * it would cause ghost repeats which would be a 549 * regression for this driver. 550 */ 551 rc_keydown_notimeout(ati_remote->rdev, scancode, 552 data[2]); 553 rc_keyup(ati_remote->rdev); 554 return; 555 } 556 557 input_event(dev, ati_remote_tbl[index].type, 558 ati_remote_tbl[index].code, 1); 559 input_sync(dev); 560 input_event(dev, ati_remote_tbl[index].type, 561 ati_remote_tbl[index].code, 0); 562 input_sync(dev); 563 564 } else { 565 566 /* 567 * Other event kinds are from the directional control pad, and have an 568 * acceleration factor applied to them. Without this acceleration, the 569 * control pad is mostly unusable. 570 */ 571 acc = ati_remote_compute_accel(ati_remote); 572 573 switch (ati_remote_tbl[index].kind) { 574 case KIND_ACCEL: 575 input_event(dev, ati_remote_tbl[index].type, 576 ati_remote_tbl[index].code, 577 ati_remote_tbl[index].value * acc); 578 break; 579 case KIND_LU: 580 input_report_rel(dev, REL_X, -acc); 581 input_report_rel(dev, REL_Y, -acc); 582 break; 583 case KIND_RU: 584 input_report_rel(dev, REL_X, acc); 585 input_report_rel(dev, REL_Y, -acc); 586 break; 587 case KIND_LD: 588 input_report_rel(dev, REL_X, -acc); 589 input_report_rel(dev, REL_Y, acc); 590 break; 591 case KIND_RD: 592 input_report_rel(dev, REL_X, acc); 593 input_report_rel(dev, REL_Y, acc); 594 break; 595 default: 596 dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n", 597 ati_remote_tbl[index].kind); 598 } 599 input_sync(dev); 600 601 ati_remote->old_jiffies = jiffies; 602 ati_remote->old_data = data[2]; 603 } 604 } 605 606 /* 607 * ati_remote_irq_in 608 */ 609 static void ati_remote_irq_in(struct urb *urb) 610 { 611 struct ati_remote *ati_remote = urb->context; 612 int retval; 613 614 switch (urb->status) { 615 case 0: /* success */ 616 ati_remote_input_report(urb); 617 break; 618 case -ECONNRESET: /* unlink */ 619 case -ENOENT: 620 case -ESHUTDOWN: 621 dev_dbg(&ati_remote->interface->dev, "%s: urb error status, unlink? \n", 622 __func__); 623 return; 624 default: /* error */ 625 dev_dbg(&ati_remote->interface->dev, "%s: Nonzero urb status %d\n", 626 __func__, urb->status); 627 } 628 629 retval = usb_submit_urb(urb, GFP_ATOMIC); 630 if (retval) 631 dev_err(&ati_remote->interface->dev, "%s: usb_submit_urb()=%d\n", 632 __func__, retval); 633 } 634 635 /* 636 * ati_remote_alloc_buffers 637 */ 638 static int ati_remote_alloc_buffers(struct usb_device *udev, 639 struct ati_remote *ati_remote) 640 { 641 ati_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC, 642 &ati_remote->inbuf_dma); 643 if (!ati_remote->inbuf) 644 return -1; 645 646 ati_remote->outbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC, 647 &ati_remote->outbuf_dma); 648 if (!ati_remote->outbuf) 649 return -1; 650 651 ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL); 652 if (!ati_remote->irq_urb) 653 return -1; 654 655 ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL); 656 if (!ati_remote->out_urb) 657 return -1; 658 659 return 0; 660 } 661 662 /* 663 * ati_remote_free_buffers 664 */ 665 static void ati_remote_free_buffers(struct ati_remote *ati_remote) 666 { 667 usb_free_urb(ati_remote->irq_urb); 668 usb_free_urb(ati_remote->out_urb); 669 670 usb_free_coherent(ati_remote->udev, DATA_BUFSIZE, 671 ati_remote->inbuf, ati_remote->inbuf_dma); 672 673 usb_free_coherent(ati_remote->udev, DATA_BUFSIZE, 674 ati_remote->outbuf, ati_remote->outbuf_dma); 675 } 676 677 static void ati_remote_input_init(struct ati_remote *ati_remote) 678 { 679 struct input_dev *idev = ati_remote->idev; 680 int i; 681 682 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 683 idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | 684 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA); 685 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 686 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) 687 if (ati_remote_tbl[i].type == EV_KEY) 688 set_bit(ati_remote_tbl[i].code, idev->keybit); 689 690 input_set_drvdata(idev, ati_remote); 691 692 idev->open = ati_remote_input_open; 693 idev->close = ati_remote_input_close; 694 695 idev->name = ati_remote->mouse_name; 696 idev->phys = ati_remote->mouse_phys; 697 698 usb_to_input_id(ati_remote->udev, &idev->id); 699 idev->dev.parent = &ati_remote->interface->dev; 700 } 701 702 static void ati_remote_rc_init(struct ati_remote *ati_remote) 703 { 704 struct rc_dev *rdev = ati_remote->rdev; 705 706 rdev->priv = ati_remote; 707 rdev->driver_type = RC_DRIVER_SCANCODE; 708 rdev->allowed_protos = RC_TYPE_OTHER; 709 rdev->driver_name = "ati_remote"; 710 711 rdev->open = ati_remote_rc_open; 712 rdev->close = ati_remote_rc_close; 713 714 rdev->input_name = ati_remote->rc_name; 715 rdev->input_phys = ati_remote->rc_phys; 716 717 usb_to_input_id(ati_remote->udev, &rdev->input_id); 718 rdev->dev.parent = &ati_remote->interface->dev; 719 } 720 721 static int ati_remote_initialize(struct ati_remote *ati_remote) 722 { 723 struct usb_device *udev = ati_remote->udev; 724 int pipe, maxp; 725 726 init_waitqueue_head(&ati_remote->wait); 727 728 /* Set up irq_urb */ 729 pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress); 730 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); 731 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; 732 733 usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf, 734 maxp, ati_remote_irq_in, ati_remote, 735 ati_remote->endpoint_in->bInterval); 736 ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma; 737 ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 738 739 /* Set up out_urb */ 740 pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress); 741 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); 742 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; 743 744 usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf, 745 maxp, ati_remote_irq_out, ati_remote, 746 ati_remote->endpoint_out->bInterval); 747 ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma; 748 ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 749 750 /* send initialization strings */ 751 if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) || 752 (ati_remote_sendpacket(ati_remote, 0x8007, init2))) { 753 dev_err(&ati_remote->interface->dev, 754 "Initializing ati_remote hardware failed.\n"); 755 return -EIO; 756 } 757 758 return 0; 759 } 760 761 /* 762 * ati_remote_probe 763 */ 764 static int ati_remote_probe(struct usb_interface *interface, const struct usb_device_id *id) 765 { 766 struct usb_device *udev = interface_to_usbdev(interface); 767 struct usb_host_interface *iface_host = interface->cur_altsetting; 768 struct usb_endpoint_descriptor *endpoint_in, *endpoint_out; 769 struct ati_remote *ati_remote; 770 struct input_dev *input_dev; 771 struct rc_dev *rc_dev; 772 int err = -ENOMEM; 773 774 if (iface_host->desc.bNumEndpoints != 2) { 775 err("%s: Unexpected desc.bNumEndpoints\n", __func__); 776 return -ENODEV; 777 } 778 779 endpoint_in = &iface_host->endpoint[0].desc; 780 endpoint_out = &iface_host->endpoint[1].desc; 781 782 if (!usb_endpoint_is_int_in(endpoint_in)) { 783 err("%s: Unexpected endpoint_in\n", __func__); 784 return -ENODEV; 785 } 786 if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) { 787 err("%s: endpoint_in message size==0? \n", __func__); 788 return -ENODEV; 789 } 790 791 ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL); 792 rc_dev = rc_allocate_device(); 793 if (!ati_remote || !rc_dev) 794 goto fail1; 795 796 /* Allocate URB buffers, URBs */ 797 if (ati_remote_alloc_buffers(udev, ati_remote)) 798 goto fail2; 799 800 ati_remote->endpoint_in = endpoint_in; 801 ati_remote->endpoint_out = endpoint_out; 802 ati_remote->udev = udev; 803 ati_remote->rdev = rc_dev; 804 ati_remote->interface = interface; 805 806 usb_make_path(udev, ati_remote->rc_phys, sizeof(ati_remote->rc_phys)); 807 strlcpy(ati_remote->mouse_phys, ati_remote->rc_phys, 808 sizeof(ati_remote->mouse_phys)); 809 810 strlcat(ati_remote->rc_phys, "/input0", sizeof(ati_remote->rc_phys)); 811 strlcat(ati_remote->mouse_phys, "/input1", sizeof(ati_remote->mouse_phys)); 812 813 if (udev->manufacturer) 814 strlcpy(ati_remote->rc_name, udev->manufacturer, 815 sizeof(ati_remote->rc_name)); 816 817 if (udev->product) 818 snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), 819 "%s %s", ati_remote->rc_name, udev->product); 820 821 if (!strlen(ati_remote->rc_name)) 822 snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), 823 DRIVER_DESC "(%04x,%04x)", 824 le16_to_cpu(ati_remote->udev->descriptor.idVendor), 825 le16_to_cpu(ati_remote->udev->descriptor.idProduct)); 826 827 snprintf(ati_remote->mouse_name, sizeof(ati_remote->mouse_name), 828 "%s mouse", ati_remote->rc_name); 829 830 if (id->driver_info) 831 rc_dev->map_name = (const char *)id->driver_info; 832 else 833 rc_dev->map_name = RC_MAP_ATI_X10; 834 835 ati_remote_rc_init(ati_remote); 836 mutex_init(&ati_remote->open_mutex); 837 838 /* Device Hardware Initialization - fills in ati_remote->idev from udev. */ 839 err = ati_remote_initialize(ati_remote); 840 if (err) 841 goto fail3; 842 843 /* Set up and register rc device */ 844 err = rc_register_device(ati_remote->rdev); 845 if (err) 846 goto fail3; 847 848 /* use our delay for rc_dev */ 849 ati_remote->rdev->input_dev->rep[REP_DELAY] = repeat_delay; 850 851 /* Set up and register mouse input device */ 852 if (mouse) { 853 input_dev = input_allocate_device(); 854 if (!input_dev) 855 goto fail4; 856 857 ati_remote->idev = input_dev; 858 ati_remote_input_init(ati_remote); 859 err = input_register_device(input_dev); 860 861 if (err) 862 goto fail5; 863 } 864 865 usb_set_intfdata(interface, ati_remote); 866 return 0; 867 868 fail5: input_free_device(input_dev); 869 fail4: rc_unregister_device(rc_dev); 870 rc_dev = NULL; 871 fail3: usb_kill_urb(ati_remote->irq_urb); 872 usb_kill_urb(ati_remote->out_urb); 873 fail2: ati_remote_free_buffers(ati_remote); 874 fail1: rc_free_device(rc_dev); 875 kfree(ati_remote); 876 return err; 877 } 878 879 /* 880 * ati_remote_disconnect 881 */ 882 static void ati_remote_disconnect(struct usb_interface *interface) 883 { 884 struct ati_remote *ati_remote; 885 886 ati_remote = usb_get_intfdata(interface); 887 usb_set_intfdata(interface, NULL); 888 if (!ati_remote) { 889 dev_warn(&interface->dev, "%s - null device?\n", __func__); 890 return; 891 } 892 893 usb_kill_urb(ati_remote->irq_urb); 894 usb_kill_urb(ati_remote->out_urb); 895 if (ati_remote->idev) 896 input_unregister_device(ati_remote->idev); 897 rc_unregister_device(ati_remote->rdev); 898 ati_remote_free_buffers(ati_remote); 899 kfree(ati_remote); 900 } 901 902 module_usb_driver(ati_remote_driver); 903 904 MODULE_AUTHOR(DRIVER_AUTHOR); 905 MODULE_DESCRIPTION(DRIVER_DESC); 906 MODULE_LICENSE("GPL"); 907