Bootloaders/HID/HostLoaderApp/hid_bootloader_cli.c

   1 /* Modified for the LUFA HID Bootloader by Dean Camera
   2  *           http://www.lufa-lib.org
   3  *
   4  *   THIS MODIFIED VERSION IS UNSUPPORTED BY PJRC.
   5  */
   6
   7 /* Teensy Loader, Command Line Interface
   8  * Program and Reboot Teensy Board with HalfKay Bootloader
   9  * http://www.pjrc.com/teensy/loader_cli.html
  10  * Copyright 2008-2010, PJRC.COM, LLC
  11  *
  12  *
  13  * You may redistribute this program and/or modify it under the terms
  14  * of the GNU General Public License as published by the Free Software
  15  * Foundation, version 3 of the License.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program.  If not, see http://www.gnu.org/licenses/
  24  */
  25
  26 /* Want to incorporate this code into a proprietary application??
  27  * Just email paul@pjrc.com to ask.  Usually it's not a problem,
  28  * but you do need to ask to use this code in any way other than
  29  * those permitted by the GNU General Public License, version 3  */
  30
  31 /* For non-root permissions on ubuntu or similar udev-based linux
  32  * http://www.pjrc.com/teensy/49-teensy.rules
  33  */
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <stdint.h>
  38 #include <stdarg.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41
  42 void usage(void)
  43 {
  44         fprintf(stderr, "Usage: hid_bootloader_cli -mmcu=<MCU> [-w] [-h] [-n] [-v] <file.hex>\n");
  45         fprintf(stderr, "\t-w : Wait for device to appear\n");
  46         fprintf(stderr, "\t-r : Use hard reboot if device not online\n");
  47         fprintf(stderr, "\t-n : No reboot after programming\n");
  48         fprintf(stderr, "\t-v : Verbose output\n");
  49         fprintf(stderr, "\n<MCU> = atmegaXXuY or at90usbXXXY");
  50
  51         fprintf(stderr, "\nFor support and more information, please visit:\n");
  52         fprintf(stderr, "http://www.lufa-lib.org\n");
  53
  54         fprintf(stderr, "\nBased on the TeensyHID command line programmer software:\n");
  55         fprintf(stderr, "http://www.pjrc.com/teensy/loader_cli.html\n");
  56         exit(1);
  57 }
  58
  59 // USB Access Functions
  60 int teensy_open(void);
  61 int teensy_write(void *buf, int len, double timeout);
  62 void teensy_close(void);
  63 int hard_reboot(void);
  64
  65 // Intel Hex File Functions
  66 int read_intel_hex(const char *filename);
  67 int ihex_bytes_within_range(int begin, int end);
  68 void ihex_get_data(int addr, int len, unsigned char *bytes);
  69
  70 // Misc stuff
  71 int printf_verbose(const char *format, ...);
  72 void delay(double seconds);
  73 void die(const char *str, ...);
  74 void parse_options(int argc, char **argv);
  75
  76 // options (from user via command line args)
  77 int wait_for_device_to_appear = 0;
  78 int hard_reboot_device = 0;
  79 int reboot_after_programming = 1;
  80 int verbose = 0;
  81 int code_size = 0, block_size = 0;
  82 const char *filename=NULL;
  83
  84
  85 /****************************************************************/
  86 /*                                                              */
  87 /*                       Main Program                           */
  88 /*                                                              */
  89 /****************************************************************/
  90
  91 int main(int argc, char **argv)
  92 {
  93         unsigned char buf[260];
  94         int num, addr, r, first_block=1, waited=0;
  95
  96         // parse command line arguments
  97         parse_options(argc, argv);
  98         if (!filename) {
  99                 fprintf(stderr, "Filename must be specified\n\n");
 100                 usage();
 101         }
 102         if (!code_size) {
 103                 fprintf(stderr, "MCU type must be specified\n\n");
 104                 usage();
 105         }
 106         printf_verbose("Teensy Loader, Command Line, Version 2.0\n");
 107
 108         // read the intel hex file
 109         // this is done first so any error is reported before using USB
 110         num = read_intel_hex(filename);
 111         if (num < 0) die("error reading intel hex file \"%s\"", filename);
 112         printf_verbose("Read \"%s\": %d bytes, %.1f%% usage\n",
 113                 filename, num, (double)num / (double)code_size * 100.0);
 114
 115         // open the USB device
 116         while (1) {
 117                 if (teensy_open()) break;
 118                 if (hard_reboot_device) {
 119                         if (!hard_reboot()) die("Unable to find rebootor\n");
 120                         printf_verbose("Hard Reboot performed\n");
 121                         hard_reboot_device = 0; // only hard reboot once
 122                         wait_for_device_to_appear = 1;
 123                 }
 124                 if (!wait_for_device_to_appear) die("Unable to open device\n");
 125                 if (!waited) {
 126                         printf_verbose("Waiting for Teensy device...\n");
 127                         printf_verbose(" (hint: press the reset button)\n");
 128                         waited = 1;
 129                 }
 130                 delay(0.25);
 131         }
 132         printf_verbose("Found HalfKay Bootloader\n");
 133
 134         // if we waited for the device, read the hex file again
 135         // perhaps it changed while we were waiting?
 136         if (waited) {
 137                 num = read_intel_hex(filename);
 138                 if (num < 0) die("error reading intel hex file \"%s\"", filename);
 139                 printf_verbose("Read \"%s\": %d bytes, %.1f%% usage\n",
 140                         filename, num, (double)num / (double)code_size * 100.0);
 141         }
 142
 143         // program the data
 144         printf_verbose("Programming");
 145         fflush(stdout);
 146         for (addr = 0; addr < code_size; addr += block_size) {
 147                 if (addr > 0 && !ihex_bytes_within_range(addr, addr + block_size - 1)) {
 148                         // don't waste time on blocks that are unused,
 149                         // but always do the first one to erase the chip
 150                         continue;
 151                 }
 152                 printf_verbose(".");
 153                 if (code_size < 0x10000) {
 154                         buf[0] = addr & 255;
 155                         buf[1] = (addr >> 8) & 255;
 156                 } else {
 157                         buf[0] = (addr >> 8) & 255;
 158                         buf[1] = (addr >> 16) & 255;
 159                 }
 160                 ihex_get_data(addr, block_size, buf + 2);
 161                 r = teensy_write(buf, block_size + 2, first_block ? 3.0 : 0.25);
 162                 if (!r) die("error writing to Teensy\n");
 163                 first_block = 0;
 164         }
 165         printf_verbose("\n");
 166
 167         // reboot to the user's new code
 168         if (reboot_after_programming) {
 169                 printf_verbose("Booting\n");
 170                 buf[0] = 0xFF;
 171                 buf[1] = 0xFF;
 172                 memset(buf + 2, 0, sizeof(buf) - 2);
 173                 teensy_write(buf, block_size + 2, 0.25);
 174         }
 175         teensy_close();
 176         return 0;
 177 }
 178
 179
 180
 181
 182 /****************************************************************/
 183 /*                                                              */
 184 /*             USB Access - libusb (Linux & FreeBSD)            */
 185 /*                                                              */
 186 /****************************************************************/
 187
 188 #if defined(USE_LIBUSB)
 189
 190 // http://libusb.sourceforge.net/doc/index.html
 191 #include <usb.h>
 192
 193 usb_dev_handle * open_usb_device(int vid, int pid)
 194 {
 195         struct usb_bus *bus;
 196         struct usb_device *dev;
 197         usb_dev_handle *h;
 198         char buf[128];
 199         int r;
 200
 201         usb_init();
 202         usb_find_busses();
 203         usb_find_devices();
 204         //printf_verbose("\nSearching for USB device:\n");
 205         for (bus = usb_get_busses(); bus; bus = bus->next) {
 206                 for (dev = bus->devices; dev; dev = dev->next) {
 207                         //printf_verbose("bus \"%s\", device \"%s\" vid=%04X, pid=%04X\n",
 208                         //      bus->dirname, dev->filename,
 209                         //      dev->descriptor.idVendor,
 210                         //      dev->descriptor.idProduct
 211                         //);
 212                         if (dev->descriptor.idVendor != vid) continue;
 213                         if (dev->descriptor.idProduct != pid) continue;
 214                         h = usb_open(dev);
 215                         if (!h) {
 216                                 printf_verbose("Found device but unable to open");
 217                                 continue;
 218                         }
 219                         #ifdef LIBUSB_HAS_GET_DRIVER_NP
 220                         r = usb_get_driver_np(h, 0, buf, sizeof(buf));
 221                         if (r >= 0) {
 222                                 r = usb_detach_kernel_driver_np(h, 0);
 223                                 if (r < 0) {
 224                                         usb_close(h);
 225                                         printf_verbose("Device is in use by \"%s\" driver", buf);
 226                                         continue;
 227                                 }
 228                         }
 229                         #endif
 230                         // Mac OS-X - removing this call to usb_claim_interface() might allow
 231                         // this to work, even though it is a clear misuse of the libusb API.
 232                         // normally Apple's IOKit should be used on Mac OS-X
 233                         r = usb_claim_interface(h, 0);
 234                         if (r < 0) {
 235                                 usb_close(h);
 236                                 printf_verbose("Unable to claim interface, check USB permissions");
 237                                 continue;
 238                         }
 239                         return h;
 240                 }
 241         }
 242         return NULL;
 243 }
 244
 245 static usb_dev_handle *libusb_teensy_handle = NULL;
 246
 247 int teensy_open(void)
 248 {
 249         teensy_close();
 250         libusb_teensy_handle = open_usb_device(0x16C0, 0x0478);
 251
 252         if (!libusb_teensy_handle)
 253                 libusb_teensy_handle = open_usb_device(0x03eb, 0x2067);
 254
 255         if (!libusb_teensy_handle) return 0;
 256         return 1;
 257 }
 258
 259 int teensy_write(void *buf, int len, double timeout)
 260 {
 261         int r;
 262
 263         if (!libusb_teensy_handle) return 0;
 264         r = usb_control_msg(libusb_teensy_handle, 0x21, 9, 0x0200, 0, (char *)buf,
 265                 len, (int)(timeout * 1000.0));
 266         if (r < 0) return 0;
 267         return 1;
 268 }
 269
 270 void teensy_close(void)
 271 {
 272         if (!libusb_teensy_handle) return;
 273         usb_release_interface(libusb_teensy_handle, 0);
 274         usb_close(libusb_teensy_handle);
 275         libusb_teensy_handle = NULL;
 276 }
 277
 278 int hard_reboot(void)
 279 {
 280         usb_dev_handle *rebootor;
 281         int r;
 282
 283         rebootor = open_usb_device(0x16C0, 0x0477);
 284
 285         if (!rebootor)
 286                 rebootor = open_usb_device(0x03eb, 0x2067);
 287
 288         if (!rebootor) return 0;
 289         r = usb_control_msg(rebootor, 0x21, 9, 0x0200, 0, "reboot", 6, 100);
 290         usb_release_interface(rebootor, 0);
 291         usb_close(rebootor);
 292         if (r < 0) return 0;
 293         return 1;
 294 }
 295
 296 #endif
 297
 298
 299 /****************************************************************/
 300 /*                                                              */
 301 /*               USB Access - Microsoft WIN32                   */
 302 /*                                                              */
 303 /****************************************************************/
 304
 305 #if defined(USE_WIN32)
 306
 307 // http://msdn.microsoft.com/en-us/library/ms790932.aspx
 308 #include <windows.h>
 309 #include <setupapi.h>
 310 #include <ddk/hidsdi.h>
 311 #include <ddk/hidclass.h>
 312
 313 HANDLE open_usb_device(int vid, int pid)
 314 {
 315         GUID guid;
 316         HDEVINFO info;
 317         DWORD index, required_size;
 318         SP_DEVICE_INTERFACE_DATA iface;
 319         SP_DEVICE_INTERFACE_DETAIL_DATA *details;
 320         HIDD_ATTRIBUTES attrib;
 321         HANDLE h;
 322         BOOL ret;
 323
 324         HidD_GetHidGuid(&guid);
 325         info = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
 326         if (info == INVALID_HANDLE_VALUE) return NULL;
 327         for (index=0; 1 ;index++) {
 328                 iface.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
 329                 ret = SetupDiEnumDeviceInterfaces(info, NULL, &guid, index, &iface);
 330                 if (!ret) {
 331                         SetupDiDestroyDeviceInfoList(info);
 332                         break;
 333                 }
 334                 SetupDiGetInterfaceDeviceDetail(info, &iface, NULL, 0, &required_size, NULL);
 335                 details = (SP_DEVICE_INTERFACE_DETAIL_DATA *)malloc(required_size);
 336                 if (details == NULL) continue;
 337                 memset(details, 0, required_size);
 338                 details->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
 339                 ret = SetupDiGetDeviceInterfaceDetail(info, &iface, details,
 340                         required_size, NULL, NULL);
 341                 if (!ret) {
 342                         free(details);
 343                         continue;
 344                 }
 345                 h = CreateFile(details->DevicePath, GENERIC_READ|GENERIC_WRITE,
 346                         FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
 347                         FILE_FLAG_OVERLAPPED, NULL);
 348                 free(details);
 349                 if (h == INVALID_HANDLE_VALUE) continue;
 350                 attrib.Size = sizeof(HIDD_ATTRIBUTES);
 351                 ret = HidD_GetAttributes(h, &attrib);
 352                 if (!ret) {
 353                         CloseHandle(h);
 354                         continue;
 355                 }
 356                 if (attrib.VendorID != vid || attrib.ProductID != pid) {
 357                         CloseHandle(h);
 358                         continue;
 359                 }
 360                 SetupDiDestroyDeviceInfoList(info);
 361                 return h;
 362         }
 363         return NULL;
 364 }
 365
 366 int write_usb_device(HANDLE h, void *buf, int len, int timeout)
 367 {
 368         static HANDLE event = NULL;
 369         unsigned char tmpbuf[1040];
 370         OVERLAPPED ov;
 371         DWORD n, r;
 372
 373         if (len > sizeof(tmpbuf) - 1) return 0;
 374         if (event == NULL) {
 375                 event = CreateEvent(NULL, TRUE, TRUE, NULL);
 376                 if (!event) return 0;
 377         }
 378         ResetEvent(&event);
 379         memset(&ov, 0, sizeof(ov));
 380         ov.hEvent = event;
 381         tmpbuf[0] = 0;
 382         memcpy(tmpbuf + 1, buf, len);
 383         if (!WriteFile(h, tmpbuf, len + 1, NULL, &ov)) {
 384                 if (GetLastError() != ERROR_IO_PENDING) return 0;
 385                 r = WaitForSingleObject(event, timeout);
 386                 if (r == WAIT_TIMEOUT) {
 387                         CancelIo(h);
 388                         return 0;
 389                 }
 390                 if (r != WAIT_OBJECT_0) return 0;
 391         }
 392         if (!GetOverlappedResult(h, &ov, &n, FALSE)) return 0;
 393         if (n <= 0) return 0;
 394         return 1;
 395 }
 396
 397 void print_win32_err(void)
 398 {
 399         char buf[256];
 400         DWORD err;
 401
 402         err = GetLastError();
 403         FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
 404                 0, buf, sizeof(buf), NULL);
 405         printf("err %ld: %s\n", err, buf);
 406 }
 407
 408 static HANDLE win32_teensy_handle = NULL;
 409
 410 int teensy_open(void)
 411 {
 412         teensy_close();
 413         win32_teensy_handle = open_usb_device(0x16C0, 0x0478);
 414
 415         if (!win32_teensy_handle)
 416                 win32_teensy_handle = open_usb_device(0x03eb, 0x2067);
 417
 418         if (!win32_teensy_handle) return 0;
 419         return 1;
 420 }
 421
 422 int teensy_write(void *buf, int len, double timeout)
 423 {
 424         int r;
 425         if (!win32_teensy_handle) return 0;
 426         r = write_usb_device(win32_teensy_handle, buf, len, (int)(timeout * 1000.0));
 427         return r;
 428 }
 429
 430 void teensy_close(void)
 431 {
 432         if (!win32_teensy_handle) return;
 433         CloseHandle(win32_teensy_handle);
 434         win32_teensy_handle = NULL;
 435 }
 436
 437 int hard_reboot(void)
 438 {
 439         HANDLE rebootor;
 440         int r;
 441
 442         rebootor = open_usb_device(0x16C0, 0x0477);
 443
 444         if (!rebootor)
 445                 rebootor = open_usb_device(0x03eb, 0x2067);
 446
 447         if (!rebootor) return 0;
 448         r = write_usb_device(rebootor, "reboot", 6, 100);
 449         CloseHandle(rebootor);
 450         return r;
 451 }
 452
 453 #endif
 454
 455
 456
 457 /****************************************************************/
 458 /*                                                              */
 459 /*             USB Access - Apple's IOKit, Mac OS-X             */
 460 /*                                                              */
 461 /****************************************************************/
 462
 463 #if defined(USE_APPLE_IOKIT)
 464
 465 // http://developer.apple.com/technotes/tn2007/tn2187.html
 466 #include <IOKit/IOKitLib.h>
 467 #include <IOKit/hid/IOHIDLib.h>
 468 #include <IOKit/hid/IOHIDDevice.h>
 469
 470 struct usb_list_struct {
 471         IOHIDDeviceRef ref;
 472         int pid;
 473         int vid;
 474         struct usb_list_struct *next;
 475 };
 476
 477 static struct usb_list_struct *usb_list=NULL;
 478 static IOHIDManagerRef hid_manager=NULL;
 479
 480 void attach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
 481 {
 482         CFTypeRef type;
 483         struct usb_list_struct *n, *p;
 484         int32_t pid, vid;
 485
 486         if (!dev) return;
 487         type = IOHIDDeviceGetProperty(dev, CFSTR(kIOHIDVendorIDKey));
 488         if (!type || CFGetTypeID(type) != CFNumberGetTypeID()) return;
 489         if (!CFNumberGetValue((CFNumberRef)type, kCFNumberSInt32Type, &vid)) return;
 490         type = IOHIDDeviceGetProperty(dev, CFSTR(kIOHIDProductIDKey));
 491         if (!type || CFGetTypeID(type) != CFNumberGetTypeID()) return;
 492         if (!CFNumberGetValue((CFNumberRef)type, kCFNumberSInt32Type, &pid)) return;
 493         n = (struct usb_list_struct *)malloc(sizeof(struct usb_list_struct));
 494         if (!n) return;
 495         //printf("attach callback: vid=%04X, pid=%04X\n", vid, pid);
 496         n->ref = dev;
 497         n->vid = vid;
 498         n->pid = pid;
 499         n->next = NULL;
 500         if (usb_list == NULL) {
 501                 usb_list = n;
 502         } else {
 503                 for (p = usb_list; p->next; p = p->next) ;
 504                 p->next = n;
 505         }
 506 }
 507
 508 void detach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
 509 {
 510         struct usb_list_struct *p, *tmp, *prev=NULL;
 511
 512         p = usb_list;
 513         while (p) {
 514                 if (p->ref == dev) {
 515                         if (prev) {
 516                                 prev->next = p->next;
 517                         } else {
 518                                 usb_list = p->next;
 519                         }
 520                         tmp = p;
 521                         p = p->next;
 522                         free(tmp);
 523                 } else {
 524                         prev = p;
 525                         p = p->next;
 526                 }
 527         }
 528 }
 529
 530 void init_hid_manager(void)
 531 {
 532         CFMutableDictionaryRef dict;
 533         IOReturn ret;
 534
 535         if (hid_manager) return;
 536         hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
 537         if (hid_manager == NULL || CFGetTypeID(hid_manager) != IOHIDManagerGetTypeID()) {
 538                 if (hid_manager) CFRelease(hid_manager);
 539                 printf_verbose("no HID Manager - maybe this is a pre-Leopard (10.5) system?\n");
 540                 return;
 541         }
 542         dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
 543                 &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
 544         if (!dict) return;
 545         IOHIDManagerSetDeviceMatching(hid_manager, dict);
 546         CFRelease(dict);
 547         IOHIDManagerScheduleWithRunLoop(hid_manager, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
 548         IOHIDManagerRegisterDeviceMatchingCallback(hid_manager, attach_callback, NULL);
 549         IOHIDManagerRegisterDeviceRemovalCallback(hid_manager, detach_callback, NULL);
 550         ret = IOHIDManagerOpen(hid_manager, kIOHIDOptionsTypeNone);
 551         if (ret != kIOReturnSuccess) {
 552                 IOHIDManagerUnscheduleFromRunLoop(hid_manager,
 553                         CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
 554                 CFRelease(hid_manager);
 555                 printf_verbose("Error opening HID Manager");
 556         }
 557 }
 558
 559 static void do_run_loop(void)
 560 {
 561         while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, true) == kCFRunLoopRunHandledSource) ;
 562 }
 563
 564 IOHIDDeviceRef open_usb_device(int vid, int pid)
 565 {
 566         struct usb_list_struct *p;
 567         IOReturn ret;
 568
 569         init_hid_manager();
 570         do_run_loop();
 571         for (p = usb_list; p; p = p->next) {
 572                 if (p->vid == vid && p->pid == pid) {
 573                         ret = IOHIDDeviceOpen(p->ref, kIOHIDOptionsTypeNone);
 574                         if (ret == kIOReturnSuccess) return p->ref;
 575                 }
 576         }
 577         return NULL;
 578 }
 579
 580 void close_usb_device(IOHIDDeviceRef dev)
 581 {
 582         struct usb_list_struct *p;
 583
 584         do_run_loop();
 585         for (p = usb_list; p; p = p->next) {
 586                 if (p->ref == dev) {
 587                         IOHIDDeviceClose(dev, kIOHIDOptionsTypeNone);
 588                         return;
 589                 }
 590         }
 591 }
 592
 593 static IOHIDDeviceRef iokit_teensy_reference = NULL;
 594
 595 int teensy_open(void)
 596 {
 597         teensy_close();
 598         iokit_teensy_reference = open_usb_device(0x16C0, 0x0478);
 599
 600         if (!iokit_teensy_reference)
 601                 iokit_teensy_reference = open_usb_device(0x03eb, 0x2067);
 602
 603         if (!iokit_teensy_reference) return 0;
 604         return 1;
 605 }
 606
 607 int teensy_write(void *buf, int len, double timeout)
 608 {
 609         IOReturn ret;
 610
 611         // timeouts do not work on OS-X
 612         // IOHIDDeviceSetReportWithCallback is not implemented
 613         // even though Apple documents it with a code example!
 614         // submitted to Apple on 22-sep-2009, problem ID 7245050
 615         if (!iokit_teensy_reference) return 0;
 616         ret = IOHIDDeviceSetReport(iokit_teensy_reference,
 617                 kIOHIDReportTypeOutput, 0, buf, len);
 618         if (ret == kIOReturnSuccess) return 1;
 619         return 0;
 620 }
 621
 622 void teensy_close(void)
 623 {
 624         if (!iokit_teensy_reference) return;
 625         close_usb_device(iokit_teensy_reference);
 626         iokit_teensy_reference = NULL;
 627 }
 628
 629 int hard_reboot(void)
 630 {
 631         IOHIDDeviceRef rebootor;
 632         IOReturn ret;
 633
 634         rebootor = open_usb_device(0x16C0, 0x0477);
 635
 636         if (!rebootor)
 637                 rebootor = open_usb_device(0x03eb, 0x2067);
 638
 639         if (!rebootor) return 0;
 640         ret = IOHIDDeviceSetReport(rebootor,
 641                 kIOHIDReportTypeOutput, 0, (uint8_t *)("reboot"), 6);
 642         close_usb_device(rebootor);
 643         if (ret == kIOReturnSuccess) return 1;
 644         return 0;
 645 }
 646
 647 #endif
 648
 649
 650
 651 /****************************************************************/
 652 /*                                                              */
 653 /*              USB Access - BSD's UHID driver                  */
 654 /*                                                              */
 655 /****************************************************************/
 656
 657 #if defined(USE_UHID)
 658
 659 // Thanks to Todd T Fries for help getting this working on OpenBSD
 660 // and to Chris Kuethe for the initial patch to use UHID.
 661
 662 #include <sys/ioctl.h>
 663 #include <fcntl.h>
 664 #include <dirent.h>
 665 #include <dev/usb/usb.h>
 666 #ifndef USB_GET_DEVICEINFO
 667 #include <dev/usb/usb_ioctl.h>
 668 #endif
 669
 670 int open_usb_device(int vid, int pid)
 671 {
 672         int r, fd;
 673         DIR *dir;
 674         struct dirent *d;
 675         struct usb_device_info info;
 676         char buf[256];
 677
 678         dir = opendir("/dev");
 679         if (!dir) return -1;
 680         while ((d = readdir(dir)) != NULL) {
 681                 if (strncmp(d->d_name, "uhid", 4) != 0) continue;
 682                 snprintf(buf, sizeof(buf), "/dev/%s", d->d_name);
 683                 fd = open(buf, O_RDWR);
 684                 if (fd < 0) continue;
 685                 r = ioctl(fd, USB_GET_DEVICEINFO, &info);
 686                 if (r < 0) {
 687                         // NetBSD: added in 2004
 688                         // OpenBSD: added November 23, 2009
 689                         // FreeBSD: missing (FreeBSD 8.0) - USE_LIBUSB works!
 690                         die("Error: your uhid driver does not support"
 691                           " USB_GET_DEVICEINFO, please upgrade!\n");
 692                         close(fd);
 693                         closedir(dir);
 694                         exit(1);
 695                 }
 696                 //printf("%s: v=%d, p=%d\n", buf, info.udi_vendorNo, info.udi_productNo);
 697                 if (info.udi_vendorNo == vid && info.udi_productNo == pid) {
 698                         closedir(dir);
 699                         return fd;
 700                 }
 701                 close(fd);
 702         }
 703         closedir(dir);
 704         return -1;
 705 }
 706
 707 static int uhid_teensy_fd = -1;
 708
 709 int teensy_open(void)
 710 {
 711         teensy_close();
 712         uhid_teensy_fd = open_usb_device(0x16C0, 0x0478);
 713
 714         if (uhid_teensy_fd < 0)
 715                 uhid_teensy_fd = open_usb_device(0x03eb, 0x2067);
 716
 717         if (uhid_teensy_fd < 0) return 0;
 718         return 1;
 719 }
 720
 721 int teensy_write(void *buf, int len, double timeout)
 722 {
 723         int r;
 724
 725         // TODO: imeplement timeout... how??
 726         r = write(uhid_teensy_fd, buf, len);
 727         if (r == len) return 1;
 728         return 0;
 729 }
 730
 731 void teensy_close(void)
 732 {
 733         if (uhid_teensy_fd >= 0) {
 734                 close(uhid_teensy_fd);
 735                 uhid_teensy_fd = -1;
 736         }
 737 }
 738
 739 int hard_reboot(void)
 740 {
 741         int r, rebootor_fd;
 742
 743         rebootor_fd = open_usb_device(0x16C0, 0x0477);
 744
 745         if (rebootor_fd < 0)
 746                 rebootor_fd = open_usb_device(0x03eb, 0x2067);
 747
 748         if (rebootor_fd < 0) return 0;
 749         r = write(rebootor_fd, "reboot", 6);
 750         delay(0.1);
 751         close(rebootor_fd);
 752         if (r == 6) return 1;
 753         return 0;
 754 }
 755
 756 #endif
 757
 758
 759
 760 /****************************************************************/
 761 /*                                                              */
 762 /*                     Read Intel Hex File                      */
 763 /*                                                              */
 764 /****************************************************************/
 765
 766 // the maximum flash image size we can support
 767 // chips with larger memory may be used, but only this
 768 // much intel-hex data can be loaded into memory!
 769 #define MAX_MEMORY_SIZE 0x10000
 770
 771 static unsigned char firmware_image[MAX_MEMORY_SIZE];
 772 static unsigned char firmware_mask[MAX_MEMORY_SIZE];
 773 static int end_record_seen=0;
 774 static int byte_count;
 775 static unsigned int extended_addr = 0;
 776 static int parse_hex_line(char *line);
 777
 778 int read_intel_hex(const char *filename)
 779 {
 780         FILE *fp;
 781         int i, lineno=0;
 782         char buf[1024];
 783
 784         byte_count = 0;
 785         end_record_seen = 0;
 786         for (i=0; i<MAX_MEMORY_SIZE; i++) {
 787                 firmware_image[i] = 0xFF;
 788                 firmware_mask[i] = 0;
 789         }
 790         extended_addr = 0;
 791
 792         fp = fopen(filename, "r");
 793         if (fp == NULL) {
 794                 //printf("Unable to read file %s\n", filename);
 795                 return -1;
 796         }
 797         while (!feof(fp)) {
 798                 *buf = '\0';
 799                 if (!fgets(buf, sizeof(buf), fp)) break;
 800                 lineno++;
 801                 if (*buf) {
 802                         if (parse_hex_line(buf) == 0) {
 803                                 //printf("Warning, parse error line %d\n", lineno);
 804                                 return -2;
 805                         }
 806                 }
 807                 if (end_record_seen) break;
 808                 if (feof(stdin)) break;
 809         }
 810         fclose(fp);
 811         return byte_count;
 812 }
 813
 814
 815 /* from ihex.c, at http://www.pjrc.com/tech/8051/pm2_docs/intel-hex.html */
 816
 817 /* parses a line of intel hex code, stores the data in bytes[] */
 818 /* and the beginning address in addr, and returns a 1 if the */
 819 /* line was valid, or a 0 if an error occured.  The variable */
 820 /* num gets the number of bytes that were stored into bytes[] */
 821
 822
 823 int
 824 parse_hex_line(char *line)
 825 {
 826         int addr, code, num;
 827         int sum, len, cksum, i;
 828         char *ptr;
 829
 830         num = 0;
 831         if (line[0] != ':') return 0;
 832         if (strlen(line) < 11) return 0;
 833         ptr = line+1;
 834         if (!sscanf(ptr, "%02x", &len)) return 0;
 835         ptr += 2;
 836         if ((int)strlen(line) < (11 + (len * 2)) ) return 0;
 837         if (!sscanf(ptr, "%04x", &addr)) return 0;
 838         ptr += 4;
 839           /* printf("Line: length=%d Addr=%d\n", len, addr); */
 840         if (!sscanf(ptr, "%02x", &code)) return 0;
 841         if (addr + extended_addr + len >= MAX_MEMORY_SIZE) return 0;
 842         ptr += 2;
 843         sum = (len & 255) + ((addr >> 8) & 255) + (addr & 255) + (code & 255);
 844         if (code != 0) {
 845                 if (code == 1) {
 846                         end_record_seen = 1;
 847                         return 1;
 848                 }
 849                 if (code == 2 && len == 2) {
 850                         if (!sscanf(ptr, "%04x", &i)) return 1;
 851                         ptr += 4;
 852                         sum += ((i >> 8) & 255) + (i & 255);
 853                         if (!sscanf(ptr, "%02x", &cksum)) return 1;
 854                         if (((sum & 255) + (cksum & 255)) & 255) return 1;
 855                         extended_addr = i << 4;
 856                         //printf("ext addr = %05X\n", extended_addr);
 857                 }
 858                 if (code == 4 && len == 2) {
 859                         if (!sscanf(ptr, "%04x", &i)) return 1;
 860                         ptr += 4;
 861                         sum += ((i >> 8) & 255) + (i & 255);
 862                         if (!sscanf(ptr, "%02x", &cksum)) return 1;
 863                         if (((sum & 255) + (cksum & 255)) & 255) return 1;
 864                         extended_addr = i << 16;
 865                         //printf("ext addr = %08X\n", extended_addr);
 866                 }
 867                 return 1;       // non-data line
 868         }
 869         byte_count += len;
 870         while (num != len) {
 871                 if (sscanf(ptr, "%02x", &i) != 1) return 0;
 872                 i &= 255;
 873                 firmware_image[addr + extended_addr + num] = i;
 874                 firmware_mask[addr + extended_addr + num] = 1;
 875                 ptr += 2;
 876                 sum += i;
 877                 (num)++;
 878                 if (num >= 256) return 0;
 879         }
 880         if (!sscanf(ptr, "%02x", &cksum)) return 0;
 881         if (((sum & 255) + (cksum & 255)) & 255) return 0; /* checksum error */
 882         return 1;
 883 }
 884
 885 int ihex_bytes_within_range(int begin, int end)
 886 {
 887         int i;
 888
 889         if (begin < 0 || begin >= MAX_MEMORY_SIZE ||
 890            end < 0 || end >= MAX_MEMORY_SIZE) {
 891                 return 0;
 892         }
 893         for (i=begin; i<=end; i++) {
 894                 if (firmware_mask[i]) return 1;
 895         }
 896         return 0;
 897 }
 898
 899 void ihex_get_data(int addr, int len, unsigned char *bytes)
 900 {
 901         int i;
 902
 903         if (addr < 0 || len < 0 || addr + len >= MAX_MEMORY_SIZE) {
 904                 for (i=0; i<len; i++) {
 905                         bytes[i] = 255;
 906                 }
 907                 return;
 908         }
 909         for (i=0; i<len; i++) {
 910                 if (firmware_mask[addr]) {
 911                         bytes[i] = firmware_image[addr];
 912                 } else {
 913                         bytes[i] = 255;
 914                 }
 915                 addr++;
 916         }
 917 }
 918
 919 /****************************************************************/
 920 /*                                                              */
 921 /*                       Misc Functions                         */
 922 /*                                                              */
 923 /****************************************************************/
 924
 925 int printf_verbose(const char *format, ...)
 926 {
 927         va_list ap;
 928         int r;
 929
 930         va_start(ap, format);
 931         if (verbose) {
 932                 r = vprintf(format, ap);
 933                 fflush(stdout);
 934                 return r;
 935         }
 936         return 0;
 937 }
 938
 939 void delay(double seconds)
 940 {
 941         #ifdef WIN32
 942         Sleep(seconds * 1000.0);
 943         #else
 944         usleep(seconds * 1000000.0);
 945         #endif
 946 }
 947
 948 void die(const char *str, ...)
 949 {
 950         va_list  ap;
 951
 952         va_start(ap, str);
 953         vfprintf(stderr, str, ap);
 954         fprintf(stderr, "\n");
 955         exit(1);
 956 }
 957
 958 #if defined(WIN32)
 959 #define strcasecmp stricmp
 960 #endif
 961
 962 void parse_options(int argc, char **argv)
 963 {
 964         int i;
 965         const char *arg;
 966
 967         for (i=1; i<argc; i++) {
 968                 arg = argv[i];
 969
 970                 if (*arg == '-') {
 971                         if (strcmp(arg, "-w") == 0) {
 972                                 wait_for_device_to_appear = 1;
 973                         } else if (strcmp(arg, "-r") == 0) {
 974                                 hard_reboot_device = 1;
 975                         } else if (strcmp(arg, "-n") == 0) {
 976                                 reboot_after_programming = 0;
 977                         } else if (strcmp(arg, "-v") == 0) {
 978                                 verbose = 1;
 979                         } else if (strncmp(arg, "-mmcu=", 6) == 0) {
 980                                 arg += 6;
 981
 982                                 uint8_t valid_prefix = 0;
 983
 984                                 if (strncmp(arg, "at90usb", 7) == 0) {
 985                                         valid_prefix = 1;
 986                                         arg += 7;
 987                                 } else if (strncmp(arg, "atmega", 6) == 0) {
 988                                         valid_prefix = 1;
 989                                         arg += 6;
 990                                 } else {
 991                                         die("Unknown MCU type\n");
 992                                 }
 993
 994                                 if (strncmp(arg, "128", 3) == 0) {
 995                                         code_size  = 128 * 1024;
 996                                         block_size = 256;
 997                                 } else if (strncmp(arg, "64", 2) == 0) {
 998                                         code_size  = 64 * 1024;
 999                                         block_size = 256;
1000                                 } else if (strncmp(arg, "32", 2) == 0) {
1001                                         code_size  = 32 * 1024;
1002                                         block_size = 128;
1003                                 } else if (strncmp(arg, "16", 2) == 0) {
1004                                         code_size  = 16 * 1024;
1005                                         block_size = 128;
1006                                 } else if (strncmp(arg, "8", 1) == 0) {
1007                                         code_size  = 8 * 1024;
1008                                         block_size = 128;
1009                                 } else {
1010                                         die("Unknown MCU type\n");
1011                                 }
1012                         }
1013                 } else {
1014                         filename = argv[i];
1015                 }
1016         }
1017 }
1018