package/uboot-kirkwood/patches/0002-kwboot.patch

   1 http://lists.denx.de/pipermail/u-boot/2012-May/125296.html
   2 http://patchwork.ozlabs.org/patch/161566/
   3 ---
   4
   5 diff --git a/doc/kwboot.1 b/doc/kwboot.1
   6 new file mode 100644
   7 index 0000000..ed08398
   8 --- /dev/null
   9 +++ b/doc/kwboot.1
  10 @@ -0,0 +1,84 @@
  11 +.TH KWBOOT 1 "2012-05-19"
  12 +
  13 +.SH NAME
  14 +kwboot \- Boot Marvell Kirkwood SoCs over a serial link.
  15 +.SH SYNOPSIS
  16 +.B kwboot
  17 +.RB [ "-b \fIimage\fP" ]
  18 +.RB [ "-p" ]
  19 +.RB [ "-t" ]
  20 +.RB [ "-B \fIbaudrate\fP" ]
  21 +.RB \fITTY\fP
  22 +.SH "DESCRIPTION"
  23 +
  24 +The \fBmkimage\fP program boots boards based on Marvell's Kirkwood
  25 +platform over their integrated UART. Boot image files will typically
  26 +contain a second stage boot loader, such as U-Boot. The image file
  27 +must conform to Marvell's BootROM firmware image format
  28 +(\fIkwbimage\fP), created using a tool such as \fBmkimage\fP.
  29 +
  30 +Following power-up or a system reset, system BootROM code polls the
  31 +UART for a brief period of time, sensing a handshake message which
  32 +initiates an image upload. This program sends this boot message until
  33 +it receives a positive acknowledgement. The image is transfered using
  34 +Xmodem.
  35 +
  36 +Additionally, this program implements a minimal terminal mode, which
  37 +can be used either standalone, or entered immediately following boot
  38 +image transfer completion. This is often useful to catch early boot
  39 +messages, or to manually interrupt a default boot procedure performed
  40 +by the second-stage loader.
  41 +
  42 +.SH "OPTIONS"
  43 +
  44 +.TP
  45 +.BI "\-b \fIimage\fP"
  46 +Handshake; then upload file \fIimage\fP over \fITTY\fP.
  47 +
  48 +Note that for the encapsulated boot code to be executed, \fIimage\fP
  49 +must be of type "UART boot" (0x69). Boot images of different types,
  50 +such as backup images of vendor firmware downloaded from flash memory
  51 +(type 0x8B), will not work (or not as expected). See \fB-p\fP for a
  52 +workaround.
  53 +
  54 +This mode writes handshake status and upload progress indication to
  55 +stdout.
  56 +
  57 +.TP
  58 +.BI "\-p"
  59 +In combination with \fB-b\fP, patches the header in \fIimage\fP prior
  60 +to upload, to "UART boot" type.
  61 +
  62 +This option attempts on-the-fly conversion of some none-UART image
  63 +types, such as images which were originally formatted to be stored in
  64 +flash memory.
  65 +
  66 +Conversion is performed in memory. The contents of \fIimage\fP will
  67 +not be altered.
  68 +
  69 +.TP
  70 +.BI "\-t"
  71 +Run a terminal program, connecting standard input and output to
  72 +.RB \fITTY\fP.
  73 +
  74 +If used in combination with \fB-b\fP, terminal mode is entered
  75 +immediately following a successful image upload.
  76 +
  77 +If standard I/O streams connect to a console, this mode will terminate
  78 +after receiving 'ctrl-\\' followed by 'c' from console input.
  79 +
  80 +.TP
  81 +.BI "\-B \fIbaudrate\fP"
  82 +Adjust the baud rate on \fITTY\fP. Default rate is 115200.
  83 +
  84 +.SH "SEE ALSO"
  85 +.PP
  86 +\fBmkimage\fP(1)
  87 +
  88 +.SH "AUTHORS"
  89 +
  90 +Daniel Stodden <daniel.stodden@gmail.com>
  91 +.br
  92 +Luka Perkov <uboot@lukaperkov.net>
  93 +.br
  94 +David Purdy <david.c.purdy@gmail.com>
  95 diff --git a/tools/Makefile b/tools/Makefile
  96 index 8993fdd..8097d95 100644
  97 --- a/tools/Makefile
  98 +++ b/tools/Makefile
  99 @@ -72,6 +72,7 @@ BIN_FILES-$(CONFIG_SMDK5250) += mksmdk5250spl$(SFX)
 100  BIN_FILES-$(CONFIG_MX28) += mxsboot$(SFX)
 101  BIN_FILES-$(CONFIG_NETCONSOLE) += ncb$(SFX)
 102  BIN_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
 103 +BIN_FILES-$(CONFIG_KIRKWOOD) += kwboot$(SFX)
 104
 105  # Source files which exist outside the tools directory
 106  EXT_OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += common/env_embedded.o
 107 @@ -101,6 +102,7 @@ OBJ_FILES-$(CONFIG_NETCONSOLE) += ncb.o
 108  NOPED_OBJ_FILES-y += os_support.o
 109  OBJ_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1.o
 110  NOPED_OBJ_FILES-y += ublimage.o
 111 +OBJ_FILES-$(CONFIG_KIRKWOOD) += kwboot.o
 112
 113  # Don't build by default
 114  #ifeq ($(ARCH),ppc)
 115 @@ -234,6 +236,10 @@ $(obj)ncb$(SFX):   $(obj)ncb.o
 116  $(obj)ubsha1$(SFX):    $(obj)os_support.o $(obj)sha1.o $(obj)ubsha1.o
 117         $(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
 118
 119 +$(obj)kwboot$(SFX): $(obj)kwboot.o
 120 +       $(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
 121 +       $(HOSTSTRIP) $@
 122 +
 123  # Some of the tool objects need to be accessed from outside the tools directory
 124  $(obj)%.o: $(SRCTREE)/common/%.c
 125         $(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
 126 diff --git a/tools/kwboot.c b/tools/kwboot.c
 127 new file mode 100644
 128 index 0000000..e773f01
 129 --- /dev/null
 130 +++ b/tools/kwboot.c
 131 @@ -0,0 +1,742 @@
 132 +/*
 133 + * Boot a Marvell Kirkwood SoC, with Xmodem over UART0.
 134 + *
 135 + * (c) 2012 Daniel Stodden <daniel.stodden@gmail.com>
 136 + *
 137 + * References: marvell.com, "88F6180, 88F6190, 88F6192, and 88F6281
 138 + *   Integrated Controller: Functional Specifications" December 2,
 139 + *   2008. Chapter 24.2 "BootROM Firmware".
 140 + */
 141 +
 142 +#include <stdlib.h>
 143 +#include <stdio.h>
 144 +#include <string.h>
 145 +#include <stdarg.h>
 146 +#include <libgen.h>
 147 +#include <fcntl.h>
 148 +#include <errno.h>
 149 +#include <unistd.h>
 150 +#include <stdint.h>
 151 +#include <termios.h>
 152 +#include <sys/mman.h>
 153 +#include <sys/stat.h>
 154 +
 155 +#include "kwbimage.h"
 156 +
 157 +#ifdef __GNUC__
 158 +#define PACKED __attribute((packed))
 159 +#else
 160 +#define PACKED
 161 +#endif
 162 +
 163 +/*
 164 + * Marvell BootROM UART Sensing
 165 + */
 166 +
 167 +static unsigned char kwboot_msg_boot[] = {
 168 +       0xBB, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77
 169 +};
 170 +
 171 +#define KWBOOT_MSG_REQ_DELAY   10 /* ms */
 172 +#define KWBOOT_MSG_RSP_TIMEO   50 /* ms */
 173 +
 174 +/*
 175 + * Xmodem Transfers
 176 + */
 177 +
 178 +#define SOH    1       /* sender start of block header */
 179 +#define EOT    4       /* sender end of block transfer */
 180 +#define ACK    6       /* target block ack */
 181 +#define NAK    21      /* target block negative ack */
 182 +#define CAN    24      /* target/sender transfer cancellation */
 183 +
 184 +struct kwboot_block {
 185 +       uint8_t soh;
 186 +       uint8_t pnum;
 187 +       uint8_t _pnum;
 188 +       uint8_t data[128];
 189 +       uint8_t csum;
 190 +} PACKED;
 191 +
 192 +#define KWBOOT_BLK_RSP_TIMEO 1000 /* ms */
 193 +
 194 +static int kwboot_verbose;
 195 +
 196 +static void
 197 +kwboot_printv(const char *fmt, ...)
 198 +{
 199 +       va_list ap;
 200 +
 201 +       if (kwboot_verbose) {
 202 +               va_start(ap, fmt);
 203 +               vprintf(fmt, ap);
 204 +               va_end(ap);
 205 +               fflush(stdout);
 206 +       }
 207 +}
 208 +
 209 +static void
 210 +__spinner(void)
 211 +{
 212 +       const char seq[] = { '-', '\\', '|', '/' };
 213 +       const int div = 8;
 214 +       static int state, bs;
 215 +
 216 +       if (state % div == 0) {
 217 +               fputc(bs, stdout);
 218 +               fputc(seq[state / div % sizeof(seq)], stdout);
 219 +               fflush(stdout);
 220 +       }
 221 +
 222 +       bs = '\b';
 223 +       state++;
 224 +}
 225 +
 226 +static void
 227 +kwboot_spinner(void)
 228 +{
 229 +       if (kwboot_verbose)
 230 +               __spinner();
 231 +}
 232 +
 233 +static void
 234 +__progress(int pct, char c)
 235 +{
 236 +       const int width = 70;
 237 +       static const char *nl = "";
 238 +       static int pos;
 239 +
 240 +       if (pos % width == 0)
 241 +               printf("%s%3d %% [", nl, pct);
 242 +
 243 +       fputc(c, stdout);
 244 +
 245 +       nl = "]\n";
 246 +       pos++;
 247 +
 248 +       if (pct == 100) {
 249 +               while (pos++ < width)
 250 +                       fputc(' ', stdout);
 251 +               fputs(nl, stdout);
 252 +       }
 253 +
 254 +       fflush(stdout);
 255 +
 256 +}
 257 +
 258 +static void
 259 +kwboot_progress(int _pct, char c)
 260 +{
 261 +       static int pct;
 262 +
 263 +       if (_pct != -1)
 264 +               pct = _pct;
 265 +
 266 +       if (kwboot_verbose)
 267 +               __progress(pct, c);
 268 +}
 269 +
 270 +static int
 271 +kwboot_tty_recv(int fd, void *buf, size_t len, int timeo)
 272 +{
 273 +       int rc, nfds;
 274 +       fd_set rfds;
 275 +       struct timeval tv;
 276 +       ssize_t n;
 277 +
 278 +       rc = -1;
 279 +
 280 +       FD_ZERO(&rfds);
 281 +       FD_SET(fd, &rfds);
 282 +
 283 +       tv.tv_sec = 0;
 284 +       tv.tv_usec = timeo * 1000;
 285 +       if (tv.tv_usec > 1000000) {
 286 +               tv.tv_sec += tv.tv_usec / 1000000;
 287 +               tv.tv_usec %= 1000000;
 288 +       }
 289 +
 290 +       do {
 291 +               nfds = select(fd + 1, &rfds, NULL, NULL, &tv);
 292 +               if (nfds < 0)
 293 +                       goto out;
 294 +               if (!nfds) {
 295 +                       errno = ETIMEDOUT;
 296 +                       goto out;
 297 +               }
 298 +
 299 +               n = read(fd, buf, len);
 300 +               if (n < 0)
 301 +                       goto out;
 302 +
 303 +               buf = (char *)buf + n;
 304 +               len -= n;
 305 +       } while (len > 0);
 306 +
 307 +       rc = 0;
 308 +out:
 309 +       return rc;
 310 +}
 311 +
 312 +static int
 313 +kwboot_tty_send(int fd, const void *buf, size_t len)
 314 +{
 315 +       int rc;
 316 +       ssize_t n;
 317 +
 318 +       rc = -1;
 319 +
 320 +       do {
 321 +               n = write(fd, buf, len);
 322 +               if (n < 0)
 323 +                       goto out;
 324 +
 325 +               buf = (char *)buf + n;
 326 +               len -= n;
 327 +       } while (len > 0);
 328 +
 329 +       rc = tcdrain(fd);
 330 +out:
 331 +       return rc;
 332 +}
 333 +
 334 +static int
 335 +kwboot_tty_send_char(int fd, unsigned char c)
 336 +{
 337 +       return kwboot_tty_send(fd, &c, 1);
 338 +}
 339 +
 340 +static speed_t
 341 +kwboot_tty_speed(int baudrate)
 342 +{
 343 +       switch (baudrate) {
 344 +       case 115200:
 345 +               return B115200;
 346 +       case 57600:
 347 +               return B57600;
 348 +       case 38400:
 349 +               return B38400;
 350 +       case 19200:
 351 +               return B19200;
 352 +       case 9600:
 353 +               return B9600;
 354 +       }
 355 +
 356 +       return -1;
 357 +}
 358 +
 359 +static int
 360 +kwboot_open_tty(const char *path, speed_t speed)
 361 +{
 362 +       int rc, fd;
 363 +       struct termios tio;
 364 +
 365 +       rc = -1;
 366 +
 367 +       fd = open(path, O_RDWR|O_NOCTTY|O_NDELAY);
 368 +       if (fd < 0)
 369 +               goto out;
 370 +
 371 +       memset(&tio, 0, sizeof(tio));
 372 +
 373 +       tio.c_iflag = 0;
 374 +       tio.c_cflag = CREAD|CLOCAL|CS8;
 375 +
 376 +       tio.c_cc[VMIN] = 1;
 377 +       tio.c_cc[VTIME] = 10;
 378 +
 379 +       cfsetospeed(&tio, speed);
 380 +       cfsetispeed(&tio, speed);
 381 +
 382 +       rc = tcsetattr(fd, TCSANOW, &tio);
 383 +       if (rc)
 384 +               goto out;
 385 +
 386 +       rc = fd;
 387 +out:
 388 +       if (rc < 0) {
 389 +               if (fd >= 0)
 390 +                       close(fd);
 391 +       }
 392 +
 393 +       return rc;
 394 +}
 395 +
 396 +static int
 397 +kwboot_bootmsg(int tty, void *msg)
 398 +{
 399 +       int rc;
 400 +       char c;
 401 +
 402 +       kwboot_printv("Sending boot message. Please reboot the target...");
 403 +
 404 +       do {
 405 +               rc = tcflush(tty, TCIOFLUSH);
 406 +               if (rc)
 407 +                       break;
 408 +
 409 +               rc = kwboot_tty_send(tty, msg, 8);
 410 +               if (rc) {
 411 +                       usleep(KWBOOT_MSG_REQ_DELAY * 1000);
 412 +                       continue;
 413 +               }
 414 +
 415 +               rc = kwboot_tty_recv(tty, &c, 1, KWBOOT_MSG_RSP_TIMEO);
 416 +
 417 +               kwboot_spinner();
 418 +
 419 +       } while (rc || c != NAK);
 420 +
 421 +       kwboot_printv("\n");
 422 +
 423 +       return rc;
 424 +}
 425 +
 426 +static int
 427 +kwboot_xm_makeblock(struct kwboot_block *block, const void *data,
 428 +                   size_t size, int pnum)
 429 +{
 430 +       const size_t blksz = sizeof(block->data);
 431 +       size_t n;
 432 +       int i;
 433 +
 434 +       block->pnum = pnum;
 435 +       block->_pnum = ~block->pnum;
 436 +
 437 +       n = size < blksz ? size : blksz;
 438 +       memcpy(&block->data[0], data, n);
 439 +       memset(&block->data[n], 0, blksz - n);
 440 +
 441 +       block->csum = 0;
 442 +       for (i = 0; i < n; i++)
 443 +               block->csum += block->data[i];
 444 +
 445 +       return n;
 446 +}
 447 +
 448 +static int
 449 +kwboot_xm_sendblock(int fd, struct kwboot_block *block)
 450 +{
 451 +       int rc, retries;
 452 +       char c;
 453 +
 454 +       retries = 16;
 455 +       do {
 456 +               rc = kwboot_tty_send(fd, block, sizeof(*block));
 457 +               if (rc)
 458 +                       break;
 459 +
 460 +               rc = kwboot_tty_recv(fd, &c, 1, KWBOOT_BLK_RSP_TIMEO);
 461 +               if (rc)
 462 +                       break;
 463 +
 464 +               if (c != ACK)
 465 +                       kwboot_progress(-1, '+');
 466 +
 467 +       } while (c == NAK && retries-- > 0);
 468 +
 469 +       rc = -1;
 470 +
 471 +       switch (c) {
 472 +       case ACK:
 473 +               rc = 0;
 474 +               break;
 475 +       case NAK:
 476 +               errno = EBADMSG;
 477 +               break;
 478 +       case CAN:
 479 +               errno = ECANCELED;
 480 +               break;
 481 +       default:
 482 +               errno = EPROTO;
 483 +               break;
 484 +       }
 485 +
 486 +       return rc;
 487 +}
 488 +
 489 +static int
 490 +kwboot_xmodem(int tty, const void *_data, size_t size)
 491 +{
 492 +       const uint8_t *data = _data;
 493 +       int rc, pnum, N, err;
 494 +
 495 +       pnum = 1;
 496 +       N = 0;
 497 +
 498 +       kwboot_printv("Sending boot image...\n");
 499 +
 500 +       do {
 501 +               struct kwboot_block block;
 502 +               int n;
 503 +
 504 +               n = kwboot_xm_makeblock(&block,
 505 +                                       data + N, size - N,
 506 +                                       pnum++);
 507 +               if (n < 0)
 508 +                       goto can;
 509 +
 510 +               if (!n)
 511 +                       break;
 512 +
 513 +               rc = kwboot_xm_sendblock(tty, &block);
 514 +               if (rc)
 515 +                       goto out;
 516 +
 517 +               N += n;
 518 +               kwboot_progress(N * 100 / size, '.');
 519 +       } while (1);
 520 +
 521 +       rc = kwboot_tty_send_char(tty, EOT);
 522 +
 523 +out:
 524 +       return rc;
 525 +
 526 +can:
 527 +       err = errno;
 528 +       kwboot_tty_send_char(tty, CAN);
 529 +       errno = err;
 530 +       goto out;
 531 +}
 532 +
 533 +static int
 534 +kwboot_term_pipe(int in, int out, char *quit, int *s)
 535 +{
 536 +       ssize_t nin, nout;
 537 +       char _buf[128], *buf = _buf;
 538 +
 539 +       nin = read(in, buf, sizeof(buf));
 540 +       if (nin < 0)
 541 +               return -1;
 542 +
 543 +       if (quit) {
 544 +               int i;
 545 +
 546 +               for (i = 0; i < nin; i++) {
 547 +                       if (*buf == quit[*s]) {
 548 +                               (*s)++;
 549 +                               if (!quit[*s])
 550 +                                       return 0;
 551 +                               buf++;
 552 +                               nin--;
 553 +                       } else
 554 +                               while (*s > 0) {
 555 +                                       nout = write(out, quit, *s);
 556 +                                       if (nout <= 0)
 557 +                                               return -1;
 558 +                                       (*s) -= nout;
 559 +                               }
 560 +               }
 561 +       }
 562 +
 563 +       while (nin > 0) {
 564 +               nout = write(out, buf, nin);
 565 +               if (nout <= 0)
 566 +                       return -1;
 567 +               nin -= nout;
 568 +       }
 569 +
 570 +       return 0;
 571 +}
 572 +
 573 +static int
 574 +kwboot_terminal(int tty)
 575 +{
 576 +       int rc, in, s;
 577 +       char *quit = "\34c";
 578 +       struct termios otio, tio;
 579 +
 580 +       rc = -1;
 581 +
 582 +       in = STDIN_FILENO;
 583 +       if (isatty(in)) {
 584 +               rc = tcgetattr(in, &otio);
 585 +               if (!rc) {
 586 +                       tio = otio;
 587 +                       cfmakeraw(&tio);
 588 +                       rc = tcsetattr(in, TCSANOW, &tio);
 589 +               }
 590 +               if (rc) {
 591 +                       perror("tcsetattr");
 592 +                       goto out;
 593 +               }
 594 +
 595 +               kwboot_printv("[Type Ctrl-%c + %c to quit]\r\n",
 596 +                             quit[0]|0100, quit[1]);
 597 +       } else
 598 +               in = -1;
 599 +
 600 +       rc = 0;
 601 +       s = 0;
 602 +
 603 +       do {
 604 +               fd_set rfds;
 605 +               int nfds = 0;
 606 +
 607 +               FD_SET(tty, &rfds);
 608 +               nfds = nfds < tty ? tty : nfds;
 609 +
 610 +               if (in >= 0) {
 611 +                       FD_SET(in, &rfds);
 612 +                       nfds = nfds < in ? in : nfds;
 613 +               }
 614 +
 615 +               nfds = select(nfds + 1, &rfds, NULL, NULL, NULL);
 616 +               if (nfds < 0)
 617 +                       break;
 618 +
 619 +               if (FD_ISSET(tty, &rfds)) {
 620 +                       rc = kwboot_term_pipe(tty, STDOUT_FILENO, NULL, NULL);
 621 +                       if (rc)
 622 +                               break;
 623 +               }
 624 +
 625 +               if (FD_ISSET(in, &rfds)) {
 626 +                       rc = kwboot_term_pipe(in, tty, quit, &s);
 627 +                       if (rc)
 628 +                               break;
 629 +               }
 630 +       } while (quit[s] != 0);
 631 +
 632 +       tcsetattr(in, TCSANOW, &otio);
 633 +out:
 634 +       return rc;
 635 +}
 636 +
 637 +static void *
 638 +kwboot_mmap_image(const char *path, size_t *size, int prot)
 639 +{
 640 +       int rc, fd, flags;
 641 +       struct stat st;
 642 +       void *img;
 643 +
 644 +       rc = -1;
 645 +       fd = -1;
 646 +       img = NULL;
 647 +
 648 +       fd = open(path, O_RDONLY);
 649 +       if (fd < 0)
 650 +               goto out;
 651 +
 652 +       rc = fstat(fd, &st);
 653 +       if (rc)
 654 +               goto out;
 655 +
 656 +       flags = (prot & PROT_WRITE) ? MAP_PRIVATE : MAP_SHARED;
 657 +
 658 +       img = mmap(NULL, st.st_size, prot, flags, fd, 0);
 659 +       if (img == MAP_FAILED) {
 660 +               img = NULL;
 661 +               goto out;
 662 +       }
 663 +
 664 +       rc = 0;
 665 +       *size = st.st_size;
 666 +out:
 667 +       if (rc && img) {
 668 +               munmap(img, st.st_size);
 669 +               img = NULL;
 670 +       }
 671 +       if (fd >= 0)
 672 +               close(fd);
 673 +
 674 +       return img;
 675 +}
 676 +
 677 +static uint8_t
 678 +kwboot_img_csum8(void *_data, size_t size)
 679 +{
 680 +       uint8_t *data = _data, csum;
 681 +
 682 +       for (csum = 0; size-- > 0; data++)
 683 +               csum += *data;
 684 +
 685 +       return csum;
 686 +}
 687 +
 688 +static int
 689 +kwboot_img_patch_hdr(void *img, size_t size)
 690 +{
 691 +       int rc;
 692 +       bhr_t *hdr;
 693 +       uint8_t csum;
 694 +       const size_t hdrsz = sizeof(*hdr);
 695 +
 696 +       rc = -1;
 697 +       hdr = img;
 698 +
 699 +       if (size < hdrsz) {
 700 +               errno = EINVAL;
 701 +               goto out;
 702 +       }
 703 +
 704 +       csum = kwboot_img_csum8(hdr, hdrsz) - hdr->checkSum;
 705 +       if (csum != hdr->checkSum) {
 706 +               errno = EINVAL;
 707 +               goto out;
 708 +       }
 709 +
 710 +       if (hdr->blockid == IBR_HDR_UART_ID) {
 711 +               rc = 0;
 712 +               goto out;
 713 +       }
 714 +
 715 +       hdr->blockid = IBR_HDR_UART_ID;
 716 +
 717 +       hdr->nandeccmode = IBR_HDR_ECC_DISABLED;
 718 +       hdr->nandpagesize = 0;
 719 +
 720 +       hdr->srcaddr = hdr->ext
 721 +               ? sizeof(struct kwb_header)
 722 +               : sizeof(*hdr);
 723 +
 724 +       hdr->checkSum = kwboot_img_csum8(hdr, hdrsz) - csum;
 725 +
 726 +       rc = 0;
 727 +out:
 728 +       return rc;
 729 +}
 730 +
 731 +static void
 732 +kwboot_usage(FILE *stream, char *progname)
 733 +{
 734 +       fprintf(stream,
 735 +               "Usage: %s -b <image> [ -p ] [ -t ] "
 736 +               "[-B <baud> ] <TTY>\n", progname);
 737 +       fprintf(stream, "\n");
 738 +       fprintf(stream, "  -b <image>: boot <image>\n");
 739 +       fprintf(stream, "  -p: patch <image> to type 0x69 (uart boot)\n");
 740 +       fprintf(stream, "\n");
 741 +       fprintf(stream, "  -t: mini terminal\n");
 742 +       fprintf(stream, "\n");
 743 +       fprintf(stream, "  -B <baud>: set baud rate\n");
 744 +       fprintf(stream, "\n");
 745 +}
 746 +
 747 +int
 748 +main(int argc, char **argv)
 749 +{
 750 +       const char *ttypath, *imgpath;
 751 +       int rv, rc, tty, term, prot, patch;
 752 +       void *bootmsg;
 753 +       void *img;
 754 +       size_t size;
 755 +       speed_t speed;
 756 +
 757 +       rv = 1;
 758 +       tty = -1;
 759 +       bootmsg = NULL;
 760 +       imgpath = NULL;
 761 +       img = NULL;
 762 +       term = 0;
 763 +       patch = 0;
 764 +       size = 0;
 765 +       speed = B115200;
 766 +
 767 +       kwboot_verbose = isatty(STDOUT_FILENO);
 768 +
 769 +       do {
 770 +               int c = getopt(argc, argv, "hb:ptB:");
 771 +               if (c < 0)
 772 +                       break;
 773 +
 774 +               switch (c) {
 775 +               case 'b':
 776 +                       bootmsg = kwboot_msg_boot;
 777 +                       imgpath = optarg;
 778 +                       break;
 779 +
 780 +               case 'p':
 781 +                       patch = 1;
 782 +                       break;
 783 +
 784 +               case 't':
 785 +                       term = 1;
 786 +                       break;
 787 +
 788 +               case 'B':
 789 +                       speed = kwboot_tty_speed(atoi(optarg));
 790 +                       if (speed == -1)
 791 +                               goto usage;
 792 +                       break;
 793 +
 794 +               case 'h':
 795 +                       rv = 0;
 796 +               default:
 797 +                       goto usage;
 798 +               }
 799 +       } while (1);
 800 +
 801 +       if (!bootmsg && !term)
 802 +               goto usage;
 803 +
 804 +       if (patch && !imgpath)
 805 +               goto usage;
 806 +
 807 +       if (argc - optind < 1)
 808 +               goto usage;
 809 +
 810 +       ttypath = argv[optind++];
 811 +
 812 +       tty = kwboot_open_tty(ttypath, speed);
 813 +       if (tty < 0) {
 814 +               perror(ttypath);
 815 +               goto out;
 816 +       }
 817 +
 818 +       if (imgpath) {
 819 +               prot = PROT_READ | (patch ? PROT_WRITE : 0);
 820 +
 821 +               img = kwboot_mmap_image(imgpath, &size, prot);
 822 +               if (!img) {
 823 +                       perror(imgpath);
 824 +                       goto out;
 825 +               }
 826 +       }
 827 +
 828 +       if (patch) {
 829 +               rc = kwboot_img_patch_hdr(img, size);
 830 +               if (rc) {
 831 +                       fprintf(stderr, "%s: Invalid image.\n", imgpath);
 832 +                       goto out;
 833 +               }
 834 +       }
 835 +
 836 +       if (bootmsg) {
 837 +               rc = kwboot_bootmsg(tty, bootmsg);
 838 +               if (rc) {
 839 +                       perror("bootmsg");
 840 +                       goto out;
 841 +               }
 842 +       }
 843 +
 844 +       if (img) {
 845 +               rc = kwboot_xmodem(tty, img, size);
 846 +               if (rc) {
 847 +                       perror("xmodem");
 848 +                       goto out;
 849 +               }
 850 +       }
 851 +
 852 +       if (term) {
 853 +               rc = kwboot_terminal(tty);
 854 +               if (rc && !(errno == EINTR)) {
 855 +                       perror("terminal");
 856 +                       goto out;
 857 +               }
 858 +       }
 859 +
 860 +       rv = 0;
 861 +out:
 862 +       if (tty >= 0)
 863 +               close(tty);
 864 +
 865 +       if (img)
 866 +               munmap(img, size);
 867 +
 868 +       return rv;
 869 +
 870 +usage:
 871 +       kwboot_usage(rv ? stderr : stdout, basename(argv[0]));
 872 +       goto out;
 873 +}