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[2]; /* 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 data1, data2; 225 int type; 226 unsigned int code; 227 int value; 228 } ati_remote_tbl[] = { 229 /* Directional control pad axes */ 230 {KIND_ACCEL, 0x35, 0x70, EV_REL, REL_X, -1}, /* left */ 231 {KIND_ACCEL, 0x36, 0x71, EV_REL, REL_X, 1}, /* right */ 232 {KIND_ACCEL, 0x37, 0x72, EV_REL, REL_Y, -1}, /* up */ 233 {KIND_ACCEL, 0x38, 0x73, EV_REL, REL_Y, 1}, /* down */ 234 /* Directional control pad diagonals */ 235 {KIND_LU, 0x39, 0x74, EV_REL, 0, 0}, /* left up */ 236 {KIND_RU, 0x3a, 0x75, EV_REL, 0, 0}, /* right up */ 237 {KIND_LD, 0x3c, 0x77, EV_REL, 0, 0}, /* left down */ 238 {KIND_RD, 0x3b, 0x76, EV_REL, 0, 0}, /* right down */ 239 240 /* "Mouse button" buttons */ 241 {KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */ 242 {KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */ 243 {KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */ 244 {KIND_LITERAL, 0x42, 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, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */ 249 {KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */ 250 251 /* Non-mouse events are handled by rc-core */ 252 {KIND_END, 0x00, 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_event_lookup 401 */ 402 static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2) 403 { 404 int i; 405 406 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { 407 /* 408 * Decide if the table entry matches the remote input. 409 */ 410 if (ati_remote_tbl[i].data1 == d1 && 411 ati_remote_tbl[i].data2 == d2) 412 return i; 413 414 } 415 return -1; 416 } 417 418 /* 419 * ati_remote_compute_accel 420 * 421 * Implements acceleration curve for directional control pad 422 * If elapsed time since last event is > 1/4 second, user "stopped", 423 * so reset acceleration. Otherwise, user is probably holding the control 424 * pad down, so we increase acceleration, ramping up over two seconds to 425 * a maximum speed. 426 */ 427 static int ati_remote_compute_accel(struct ati_remote *ati_remote) 428 { 429 static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 }; 430 unsigned long now = jiffies; 431 int acc; 432 433 if (time_after(now, ati_remote->old_jiffies + msecs_to_jiffies(250))) { 434 acc = 1; 435 ati_remote->acc_jiffies = now; 436 } 437 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(125))) 438 acc = accel[0]; 439 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(250))) 440 acc = accel[1]; 441 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(500))) 442 acc = accel[2]; 443 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1000))) 444 acc = accel[3]; 445 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1500))) 446 acc = accel[4]; 447 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(2000))) 448 acc = accel[5]; 449 else 450 acc = accel[6]; 451 452 return acc; 453 } 454 455 /* 456 * ati_remote_report_input 457 */ 458 static void ati_remote_input_report(struct urb *urb) 459 { 460 struct ati_remote *ati_remote = urb->context; 461 unsigned char *data= ati_remote->inbuf; 462 struct input_dev *dev = ati_remote->idev; 463 int index = -1; 464 int acc; 465 int remote_num; 466 unsigned char scancode[2]; 467 468 /* Deal with strange looking inputs */ 469 if ( (urb->actual_length != 4) || (data[0] != 0x14) || 470 ((data[3] & 0x0f) != 0x00) ) { 471 ati_remote_dump(&urb->dev->dev, data, urb->actual_length); 472 return; 473 } 474 475 /* Mask unwanted remote channels. */ 476 /* note: remote_num is 0-based, channel 1 on remote == 0 here */ 477 remote_num = (data[3] >> 4) & 0x0f; 478 if (channel_mask & (1 << (remote_num + 1))) { 479 dbginfo(&ati_remote->interface->dev, 480 "Masked input from channel 0x%02x: data %02x,%02x, mask= 0x%02lx\n", 481 remote_num, data[1], data[2], channel_mask); 482 return; 483 } 484 485 scancode[0] = (((data[1] - ((remote_num + 1) << 4)) & 0xf0) | (data[1] & 0x0f)); 486 487 /* 488 * Some devices (e.g. SnapStream Firefly) use 8080 as toggle code, 489 * so we have to clear them. The first bit is a bit tricky as the 490 * "non-toggled" state depends on remote_num, so we xor it with the 491 * second bit which is only used for toggle. 492 */ 493 scancode[0] ^= (data[2] & 0x80); 494 495 scancode[1] = data[2] & ~0x80; 496 497 /* Look up event code index in mouse translation table. */ 498 index = ati_remote_event_lookup(remote_num, scancode[0], scancode[1]); 499 500 if (index >= 0) { 501 dbginfo(&ati_remote->interface->dev, 502 "channel 0x%02x; mouse data %02x,%02x; index %d; keycode %d\n", 503 remote_num, data[1], data[2], index, ati_remote_tbl[index].code); 504 if (!dev) 505 return; /* no mouse device */ 506 } else 507 dbginfo(&ati_remote->interface->dev, 508 "channel 0x%02x; key data %02x,%02x, scancode %02x,%02x\n", 509 remote_num, data[1], data[2], scancode[0], scancode[1]); 510 511 512 if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) { 513 input_event(dev, ati_remote_tbl[index].type, 514 ati_remote_tbl[index].code, 515 ati_remote_tbl[index].value); 516 input_sync(dev); 517 518 ati_remote->old_jiffies = jiffies; 519 return; 520 } 521 522 if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) { 523 unsigned long now = jiffies; 524 525 /* Filter duplicate events which happen "too close" together. */ 526 if (ati_remote->old_data[0] == data[1] && 527 ati_remote->old_data[1] == data[2] && 528 time_before(now, ati_remote->old_jiffies + 529 msecs_to_jiffies(repeat_filter))) { 530 ati_remote->repeat_count++; 531 } else { 532 ati_remote->repeat_count = 0; 533 ati_remote->first_jiffies = now; 534 } 535 536 ati_remote->old_data[0] = data[1]; 537 ati_remote->old_data[1] = data[2]; 538 ati_remote->old_jiffies = now; 539 540 /* Ensure we skip at least the 4 first duplicate events (generated 541 * by a single keypress), and continue skipping until repeat_delay 542 * msecs have passed 543 */ 544 if (ati_remote->repeat_count > 0 && 545 (ati_remote->repeat_count < 5 || 546 time_before(now, ati_remote->first_jiffies + 547 msecs_to_jiffies(repeat_delay)))) 548 return; 549 550 if (index < 0) { 551 /* Not a mouse event, hand it to rc-core. */ 552 u32 rc_code = (scancode[0] << 8) | scancode[1]; 553 554 /* 555 * We don't use the rc-core repeat handling yet as 556 * it would cause ghost repeats which would be a 557 * regression for this driver. 558 */ 559 rc_keydown_notimeout(ati_remote->rdev, rc_code, 560 data[2]); 561 rc_keyup(ati_remote->rdev); 562 return; 563 } 564 565 input_event(dev, ati_remote_tbl[index].type, 566 ati_remote_tbl[index].code, 1); 567 input_sync(dev); 568 input_event(dev, ati_remote_tbl[index].type, 569 ati_remote_tbl[index].code, 0); 570 input_sync(dev); 571 572 } else { 573 574 /* 575 * Other event kinds are from the directional control pad, and have an 576 * acceleration factor applied to them. Without this acceleration, the 577 * control pad is mostly unusable. 578 */ 579 acc = ati_remote_compute_accel(ati_remote); 580 581 switch (ati_remote_tbl[index].kind) { 582 case KIND_ACCEL: 583 input_event(dev, ati_remote_tbl[index].type, 584 ati_remote_tbl[index].code, 585 ati_remote_tbl[index].value * acc); 586 break; 587 case KIND_LU: 588 input_report_rel(dev, REL_X, -acc); 589 input_report_rel(dev, REL_Y, -acc); 590 break; 591 case KIND_RU: 592 input_report_rel(dev, REL_X, acc); 593 input_report_rel(dev, REL_Y, -acc); 594 break; 595 case KIND_LD: 596 input_report_rel(dev, REL_X, -acc); 597 input_report_rel(dev, REL_Y, acc); 598 break; 599 case KIND_RD: 600 input_report_rel(dev, REL_X, acc); 601 input_report_rel(dev, REL_Y, acc); 602 break; 603 default: 604 dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n", 605 ati_remote_tbl[index].kind); 606 } 607 input_sync(dev); 608 609 ati_remote->old_jiffies = jiffies; 610 ati_remote->old_data[0] = data[1]; 611 ati_remote->old_data[1] = data[2]; 612 } 613 } 614 615 /* 616 * ati_remote_irq_in 617 */ 618 static void ati_remote_irq_in(struct urb *urb) 619 { 620 struct ati_remote *ati_remote = urb->context; 621 int retval; 622 623 switch (urb->status) { 624 case 0: /* success */ 625 ati_remote_input_report(urb); 626 break; 627 case -ECONNRESET: /* unlink */ 628 case -ENOENT: 629 case -ESHUTDOWN: 630 dev_dbg(&ati_remote->interface->dev, "%s: urb error status, unlink? \n", 631 __func__); 632 return; 633 default: /* error */ 634 dev_dbg(&ati_remote->interface->dev, "%s: Nonzero urb status %d\n", 635 __func__, urb->status); 636 } 637 638 retval = usb_submit_urb(urb, GFP_ATOMIC); 639 if (retval) 640 dev_err(&ati_remote->interface->dev, "%s: usb_submit_urb()=%d\n", 641 __func__, retval); 642 } 643 644 /* 645 * ati_remote_alloc_buffers 646 */ 647 static int ati_remote_alloc_buffers(struct usb_device *udev, 648 struct ati_remote *ati_remote) 649 { 650 ati_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC, 651 &ati_remote->inbuf_dma); 652 if (!ati_remote->inbuf) 653 return -1; 654 655 ati_remote->outbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC, 656 &ati_remote->outbuf_dma); 657 if (!ati_remote->outbuf) 658 return -1; 659 660 ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL); 661 if (!ati_remote->irq_urb) 662 return -1; 663 664 ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL); 665 if (!ati_remote->out_urb) 666 return -1; 667 668 return 0; 669 } 670 671 /* 672 * ati_remote_free_buffers 673 */ 674 static void ati_remote_free_buffers(struct ati_remote *ati_remote) 675 { 676 usb_free_urb(ati_remote->irq_urb); 677 usb_free_urb(ati_remote->out_urb); 678 679 usb_free_coherent(ati_remote->udev, DATA_BUFSIZE, 680 ati_remote->inbuf, ati_remote->inbuf_dma); 681 682 usb_free_coherent(ati_remote->udev, DATA_BUFSIZE, 683 ati_remote->outbuf, ati_remote->outbuf_dma); 684 } 685 686 static void ati_remote_input_init(struct ati_remote *ati_remote) 687 { 688 struct input_dev *idev = ati_remote->idev; 689 int i; 690 691 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 692 idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | 693 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA); 694 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 695 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) 696 if (ati_remote_tbl[i].type == EV_KEY) 697 set_bit(ati_remote_tbl[i].code, idev->keybit); 698 699 input_set_drvdata(idev, ati_remote); 700 701 idev->open = ati_remote_input_open; 702 idev->close = ati_remote_input_close; 703 704 idev->name = ati_remote->mouse_name; 705 idev->phys = ati_remote->mouse_phys; 706 707 usb_to_input_id(ati_remote->udev, &idev->id); 708 idev->dev.parent = &ati_remote->interface->dev; 709 } 710 711 static void ati_remote_rc_init(struct ati_remote *ati_remote) 712 { 713 struct rc_dev *rdev = ati_remote->rdev; 714 715 rdev->priv = ati_remote; 716 rdev->driver_type = RC_DRIVER_SCANCODE; 717 rdev->allowed_protos = RC_TYPE_OTHER; 718 rdev->driver_name = "ati_remote"; 719 720 rdev->open = ati_remote_rc_open; 721 rdev->close = ati_remote_rc_close; 722 723 rdev->input_name = ati_remote->rc_name; 724 rdev->input_phys = ati_remote->rc_phys; 725 726 usb_to_input_id(ati_remote->udev, &rdev->input_id); 727 rdev->dev.parent = &ati_remote->interface->dev; 728 } 729 730 static int ati_remote_initialize(struct ati_remote *ati_remote) 731 { 732 struct usb_device *udev = ati_remote->udev; 733 int pipe, maxp; 734 735 init_waitqueue_head(&ati_remote->wait); 736 737 /* Set up irq_urb */ 738 pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress); 739 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); 740 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; 741 742 usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf, 743 maxp, ati_remote_irq_in, ati_remote, 744 ati_remote->endpoint_in->bInterval); 745 ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma; 746 ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 747 748 /* Set up out_urb */ 749 pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress); 750 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); 751 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; 752 753 usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf, 754 maxp, ati_remote_irq_out, ati_remote, 755 ati_remote->endpoint_out->bInterval); 756 ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma; 757 ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 758 759 /* send initialization strings */ 760 if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) || 761 (ati_remote_sendpacket(ati_remote, 0x8007, init2))) { 762 dev_err(&ati_remote->interface->dev, 763 "Initializing ati_remote hardware failed.\n"); 764 return -EIO; 765 } 766 767 return 0; 768 } 769 770 /* 771 * ati_remote_probe 772 */ 773 static int ati_remote_probe(struct usb_interface *interface, const struct usb_device_id *id) 774 { 775 struct usb_device *udev = interface_to_usbdev(interface); 776 struct usb_host_interface *iface_host = interface->cur_altsetting; 777 struct usb_endpoint_descriptor *endpoint_in, *endpoint_out; 778 struct ati_remote *ati_remote; 779 struct input_dev *input_dev; 780 struct rc_dev *rc_dev; 781 int err = -ENOMEM; 782 783 if (iface_host->desc.bNumEndpoints != 2) { 784 err("%s: Unexpected desc.bNumEndpoints\n", __func__); 785 return -ENODEV; 786 } 787 788 endpoint_in = &iface_host->endpoint[0].desc; 789 endpoint_out = &iface_host->endpoint[1].desc; 790 791 if (!usb_endpoint_is_int_in(endpoint_in)) { 792 err("%s: Unexpected endpoint_in\n", __func__); 793 return -ENODEV; 794 } 795 if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) { 796 err("%s: endpoint_in message size==0? \n", __func__); 797 return -ENODEV; 798 } 799 800 ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL); 801 rc_dev = rc_allocate_device(); 802 if (!ati_remote || !rc_dev) 803 goto fail1; 804 805 /* Allocate URB buffers, URBs */ 806 if (ati_remote_alloc_buffers(udev, ati_remote)) 807 goto fail2; 808 809 ati_remote->endpoint_in = endpoint_in; 810 ati_remote->endpoint_out = endpoint_out; 811 ati_remote->udev = udev; 812 ati_remote->rdev = rc_dev; 813 ati_remote->interface = interface; 814 815 usb_make_path(udev, ati_remote->rc_phys, sizeof(ati_remote->rc_phys)); 816 strlcpy(ati_remote->mouse_phys, ati_remote->rc_phys, 817 sizeof(ati_remote->mouse_phys)); 818 819 strlcat(ati_remote->rc_phys, "/input0", sizeof(ati_remote->rc_phys)); 820 strlcat(ati_remote->mouse_phys, "/input1", sizeof(ati_remote->mouse_phys)); 821 822 if (udev->manufacturer) 823 strlcpy(ati_remote->rc_name, udev->manufacturer, 824 sizeof(ati_remote->rc_name)); 825 826 if (udev->product) 827 snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), 828 "%s %s", ati_remote->rc_name, udev->product); 829 830 if (!strlen(ati_remote->rc_name)) 831 snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), 832 DRIVER_DESC "(%04x,%04x)", 833 le16_to_cpu(ati_remote->udev->descriptor.idVendor), 834 le16_to_cpu(ati_remote->udev->descriptor.idProduct)); 835 836 snprintf(ati_remote->mouse_name, sizeof(ati_remote->mouse_name), 837 "%s mouse", ati_remote->rc_name); 838 839 if (id->driver_info) 840 rc_dev->map_name = (const char *)id->driver_info; 841 else 842 rc_dev->map_name = RC_MAP_ATI_X10; 843 844 ati_remote_rc_init(ati_remote); 845 mutex_init(&ati_remote->open_mutex); 846 847 /* Device Hardware Initialization - fills in ati_remote->idev from udev. */ 848 err = ati_remote_initialize(ati_remote); 849 if (err) 850 goto fail3; 851 852 /* Set up and register rc device */ 853 err = rc_register_device(ati_remote->rdev); 854 if (err) 855 goto fail3; 856 857 /* use our delay for rc_dev */ 858 ati_remote->rdev->input_dev->rep[REP_DELAY] = repeat_delay; 859 860 /* Set up and register mouse input device */ 861 if (mouse) { 862 input_dev = input_allocate_device(); 863 if (!input_dev) 864 goto fail4; 865 866 ati_remote->idev = input_dev; 867 ati_remote_input_init(ati_remote); 868 err = input_register_device(input_dev); 869 870 if (err) 871 goto fail5; 872 } 873 874 usb_set_intfdata(interface, ati_remote); 875 return 0; 876 877 fail5: input_free_device(input_dev); 878 fail4: rc_unregister_device(rc_dev); 879 rc_dev = NULL; 880 fail3: usb_kill_urb(ati_remote->irq_urb); 881 usb_kill_urb(ati_remote->out_urb); 882 fail2: ati_remote_free_buffers(ati_remote); 883 fail1: rc_free_device(rc_dev); 884 kfree(ati_remote); 885 return err; 886 } 887 888 /* 889 * ati_remote_disconnect 890 */ 891 static void ati_remote_disconnect(struct usb_interface *interface) 892 { 893 struct ati_remote *ati_remote; 894 895 ati_remote = usb_get_intfdata(interface); 896 usb_set_intfdata(interface, NULL); 897 if (!ati_remote) { 898 dev_warn(&interface->dev, "%s - null device?\n", __func__); 899 return; 900 } 901 902 usb_kill_urb(ati_remote->irq_urb); 903 usb_kill_urb(ati_remote->out_urb); 904 if (ati_remote->idev) 905 input_unregister_device(ati_remote->idev); 906 rc_unregister_device(ati_remote->rdev); 907 ati_remote_free_buffers(ati_remote); 908 kfree(ati_remote); 909 } 910 911 /* 912 * ati_remote_init 913 */ 914 static int __init ati_remote_init(void) 915 { 916 int result; 917 918 result = usb_register(&ati_remote_driver); 919 if (result) 920 printk(KERN_ERR KBUILD_MODNAME 921 ": usb_register error #%d\n", result); 922 else 923 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 924 DRIVER_DESC "\n"); 925 926 return result; 927 } 928 929 /* 930 * ati_remote_exit 931 */ 932 static void __exit ati_remote_exit(void) 933 { 934 usb_deregister(&ati_remote_driver); 935 } 936 937 /* 938 * module specification 939 */ 940 941 module_init(ati_remote_init); 942 module_exit(ati_remote_exit); 943 944 MODULE_AUTHOR(DRIVER_AUTHOR); 945 MODULE_DESCRIPTION(DRIVER_DESC); 946 MODULE_LICENSE("GPL"); 947