01698af3 |
1 | /* |
2 | * Tool for Saturn USB DataLink device |
3 | * Copyright (c) 2014 notaz |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining |
6 | * a copy of this software and associated documentation files (the |
7 | * "Software"), to deal in the Software without restriction, including |
8 | * without limitation the rights to use, copy, modify, merge, publish, |
9 | * distribute, sublicense, and/or sell copies of the Software, and to |
10 | * permit persons to whom the Software is furnished to do so, subject to |
11 | * the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be |
14 | * included in all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
17 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
19 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
20 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
21 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
23 | * SOFTWARE. |
24 | */ |
25 | |
26 | #include <stdio.h> |
27 | #include <string.h> |
28 | #include <stdlib.h> |
29 | #include <string.h> |
30 | #include <stdint.h> |
31 | #include <sys/types.h> |
32 | #include <sys/stat.h> |
33 | #include <fcntl.h> |
34 | #include <sys/ioctl.h> |
35 | #include <unistd.h> |
36 | |
37 | // ugh.. avoid conflicting winsize/termio from sys/ioctl.h |
38 | #define winsize winsize_ |
39 | #define termio termio_ |
40 | #include <linux/termios.h> |
41 | |
42 | #define BAUD_RATE 375000 |
43 | #define MAX_DATA_SIZE 191 |
d6a44ec7 |
44 | #define PROGRESS_STEP (4 * 1024) |
01698af3 |
45 | |
46 | static int setup(int fd) |
47 | { |
48 | struct termios2 tty; |
49 | //struct termios tty; |
50 | int ret; |
51 | |
52 | memset(&tty, 0, sizeof(tty)); |
53 | |
54 | //ret = tcgetattr(fd, &tty); |
55 | ret = ioctl(fd, TCGETS2, &tty); |
56 | if (ret != 0) { |
57 | perror("TCGETS2"); |
58 | return ret; |
59 | } |
60 | |
61 | tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP |
62 | | INLCR | IGNCR | ICRNL | IXON); |
63 | tty.c_oflag &= ~OPOST; |
64 | tty.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); |
65 | tty.c_cflag &= ~(CSIZE | PARENB); |
66 | tty.c_cflag |= CS8 | CSTOPB | CREAD; |
67 | tty.c_cflag &= ~CBAUD; |
68 | tty.c_cflag |= BOTHER; |
69 | tty.c_ispeed = |
70 | tty.c_ospeed = BAUD_RATE; |
71 | |
72 | tty.c_cc[VMIN] = 1; |
73 | tty.c_cc[VTIME] = 0; // read timeout deciseconds |
74 | |
75 | //ret = tcsetattr(fd, TCSANOW, &tty); |
76 | ret = ioctl(fd, TCSETS2, &tty); |
77 | if (ret != 0) { |
78 | perror("TCSETS2"); |
79 | return ret; |
80 | } |
81 | |
82 | memset(&tty, 0, sizeof(tty)); |
83 | ret = ioctl(fd, TCGETS2, &tty); |
84 | if (ret != 0) { |
85 | perror("TCGETS2"); |
86 | return ret; |
87 | } |
88 | |
89 | if (tty.c_ispeed != BAUD_RATE || tty.c_ospeed != BAUD_RATE) { |
90 | fprintf(stderr, "warning: could not set %d baud, got:\n", |
91 | BAUD_RATE); |
92 | fprintf(stderr, "c_ispeed: %d\n", tty.c_ispeed); |
93 | fprintf(stderr, "c_ospeed: %d\n", tty.c_ospeed); |
94 | fprintf(stderr, "c_cflag: 0%o\n", tty.c_cflag); |
95 | } |
96 | |
97 | return 0; |
98 | } |
99 | |
d6a44ec7 |
100 | static void print_progress(int done, int total) |
101 | { |
102 | int i, step; |
103 | |
104 | printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); |
105 | printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); /* 20 */ |
106 | printf("\b\b\b\b\b\b"); |
107 | printf("%06x/%06x |", done, total); |
108 | |
109 | step = total / 20; |
5491df41 |
110 | if (step <= 0) |
111 | step = 1; |
112 | |
d6a44ec7 |
113 | for (i = step; i <= total; i += step) |
114 | printf("%c", done >= i ? '=' : '-'); |
115 | printf("| %3d%%", done * 100 / total); |
116 | fflush(stdout); |
117 | |
118 | if (done == total) |
119 | printf("\n"); |
120 | } |
121 | |
01698af3 |
122 | static void dump_pkt(const uint8_t *buf, size_t size, const char *msg) |
123 | { |
124 | size_t i; |
125 | |
126 | printf("%s\n", msg); |
127 | |
128 | for (i = 0; i < size; ) { |
129 | printf("%02zx:", i); |
130 | while (i < size) { |
131 | printf(" %02x", buf[i]); |
132 | i++; |
133 | if ((i & 15) == 0) |
134 | break; |
135 | } |
136 | printf("\n"); |
137 | } |
138 | } |
139 | |
140 | static uint8_t sum(const uint8_t *buf, size_t size) |
141 | { |
142 | uint8_t ret = 0; |
143 | size_t i; |
144 | |
145 | for (i = 0; i < size; i++) |
146 | ret += buf[i]; |
147 | |
148 | return ret; |
149 | } |
150 | |
151 | static int send_pkt(int fd, uint8_t cmd, uint32_t addr, uint8_t len, |
152 | const void *data, size_t data_size) |
153 | { |
154 | uint8_t pkt[200]; |
155 | int ret; |
156 | |
157 | pkt[0] = 0x5a; |
158 | pkt[1] = 9 - 2 + data_size; |
159 | pkt[2] = cmd; |
160 | pkt[3] = addr >> 24; |
161 | pkt[4] = addr >> 16; |
162 | pkt[5] = addr >> 8; |
163 | pkt[6] = addr; |
164 | pkt[7] = len; |
165 | if (data_size > 0) |
166 | memcpy(&pkt[8], data, data_size); |
167 | pkt[8 + data_size] = sum(&pkt[1], 8 + data_size - 1); |
168 | |
169 | // dump_pkt(pkt, 9 + data_size, "send:"); |
170 | |
171 | ret = write(fd, pkt, 9 + data_size); |
172 | if (ret != 9 + data_size) { |
173 | fprintf(stderr, "write: %d/%zd, cmd %02x, addr %08x: ", |
174 | ret, 9 + data_size, cmd, addr); |
175 | perror(""); |
176 | dump_pkt(pkt, 9 + data_size, ""); |
177 | return -1; |
178 | } |
179 | |
180 | return 0; |
181 | } |
182 | |
183 | static int recv_pkt(int fd, uint8_t cmd, uint32_t addr, |
184 | void *data, size_t data_size) |
185 | { |
186 | size_t size = 9 + data_size; |
187 | size_t got; |
188 | uint8_t pkt[200]; |
189 | uint8_t csum; |
190 | int ret; |
191 | |
192 | for (got = 0; got < size; ) { |
193 | ret = read(fd, pkt + got, size); |
194 | if (ret <= 0) { |
195 | fprintf(stderr, "read: %d, %zd/%zd, " |
196 | "cmd %02x, addr %08x: ", |
197 | ret, got, size, cmd, addr); |
198 | perror(""); |
199 | if (got > 0) |
200 | dump_pkt(pkt, got, "received data:"); |
201 | return -1; |
202 | } |
203 | got += ret; |
204 | } |
205 | |
206 | csum = sum(&pkt[1], size - 2); |
207 | if (csum != pkt[size - 1]) { |
208 | fprintf(stderr, "read: %zd, cmd %02x, addr %08x: " |
209 | "checksum incorrect, expected %02x\n", |
210 | got, cmd, addr, csum); |
211 | dump_pkt(pkt, got, ""); |
212 | return -2; |
213 | } |
214 | |
215 | if (pkt[0] != 0xa5 || pkt[1] != size - 2 || pkt[2] != 0xff) { |
216 | fprintf(stderr, "read: %zd, cmd %02x, addr %08x: " |
217 | "unexpected response header\n", |
218 | got, cmd, addr); |
219 | dump_pkt(pkt, got, ""); |
220 | return -2; |
221 | } |
222 | |
223 | if (data_size != 0) |
224 | memcpy(data, &pkt[8], data_size); |
225 | |
226 | // dump_pkt(pkt, got, "recv:"); |
227 | |
228 | return 0; |
229 | } |
230 | |
231 | static int do_rx(int fd, uint32_t addr, void *buf, size_t size) |
232 | { |
d6a44ec7 |
233 | size_t size_total = size; |
234 | int progress_bytes = 0; |
01698af3 |
235 | char *cbuf = buf; |
236 | int ret; |
237 | int len; |
238 | |
239 | /* must use at least 2 packets */ |
240 | if (size <= MAX_DATA_SIZE) |
241 | len = size / 2; |
242 | else |
243 | len = MAX_DATA_SIZE; |
244 | |
245 | ret = send_pkt(fd, 0x01, addr, len, NULL, 0); |
246 | if (ret != 0) |
247 | return ret; |
248 | |
249 | ret = recv_pkt(fd, 0x01, addr, cbuf, len); |
250 | if (ret != 0) |
251 | return ret; |
252 | |
253 | addr += len; |
254 | cbuf += len; |
255 | size -= len; |
256 | |
257 | while (size > 0) { |
258 | uint8_t cmd = size > MAX_DATA_SIZE ? 0x11 : 0x21; |
259 | |
260 | len = size; |
261 | if (len > MAX_DATA_SIZE) |
262 | len = MAX_DATA_SIZE; |
263 | |
264 | ret = send_pkt(fd, cmd, addr, len, NULL, 0); |
265 | if (ret != 0) |
266 | return ret; |
267 | |
268 | ret = recv_pkt(fd, 0x01, addr, cbuf, len); |
269 | if (ret != 0) |
270 | return ret; |
271 | |
272 | addr += len; |
273 | cbuf += len; |
274 | size -= len; |
d6a44ec7 |
275 | |
276 | progress_bytes -= len; |
277 | if (progress_bytes <= 0 || size == 0) { |
278 | print_progress(size_total - size, size_total); |
279 | progress_bytes = PROGRESS_STEP; |
280 | } |
01698af3 |
281 | } |
282 | |
283 | return 0; |
284 | } |
285 | |
286 | static int do_tx(int fd, uint32_t addr, void *buf, size_t size, int exe) |
287 | { |
d6a44ec7 |
288 | int progress_bytes = 0; |
289 | size_t size_total = size; |
01698af3 |
290 | size_t size_last = size; |
291 | uint32_t addr_last = addr; |
292 | char *cbuf = buf; |
293 | uint8_t cmd = 0x09; |
294 | int ret; |
295 | int len; |
296 | |
297 | if (size > MAX_DATA_SIZE) { |
298 | /* skip first packet, we'll send it last */ |
299 | size_last = MAX_DATA_SIZE; |
300 | addr += size_last; |
301 | cbuf += size_last; |
302 | size -= size_last; |
303 | |
304 | while (size > 0) { |
305 | len = size; |
306 | if (len > MAX_DATA_SIZE) |
307 | len = MAX_DATA_SIZE; |
308 | |
309 | ret = send_pkt(fd, cmd, addr, len, cbuf, len); |
310 | if (ret != 0) |
311 | return ret; |
312 | |
313 | ret = recv_pkt(fd, cmd, addr, NULL, 0); |
314 | if (ret != 0) |
315 | return ret; |
316 | |
317 | addr += len; |
318 | cbuf += len; |
319 | size -= len; |
d6a44ec7 |
320 | |
321 | progress_bytes -= len; |
322 | if (progress_bytes <= 0) { |
323 | print_progress(size_total - size - size_last, |
324 | size_total); |
325 | progress_bytes = PROGRESS_STEP; |
326 | } |
01698af3 |
327 | } |
328 | } |
329 | |
330 | if (exe) |
331 | cmd = 0x19; |
332 | |
333 | ret = send_pkt(fd, cmd, addr_last, size_last, buf, size_last); |
334 | if (ret != 0) |
335 | return ret; |
336 | |
337 | ret = recv_pkt(fd, cmd, addr_last, NULL, 0); |
338 | if (ret != 0) |
339 | return ret; |
340 | |
d6a44ec7 |
341 | print_progress(size_total, size_total); |
342 | |
01698af3 |
343 | return 0; |
344 | } |
345 | |
346 | static void usage(const char *argv0) |
347 | { |
348 | printf("usage:\n" |
349 | "%s [dev <device>] command(s)\n" |
350 | "commands:\n" |
351 | " rx <addr> <size> <outfile>\n" |
352 | " tx <addr> <size> <infile> [x]\n" |
353 | " <outfile> can be \"/hd/\" for a hexdump\n" |
354 | " x instructs to execute uploaded data\n" |
d6a44ec7 |
355 | " for tx, size 0 asks to use filesize\n\n" |
356 | "useful regions (addr size):\n" |
357 | " 0x00000000 0x080000 - BIOS\n" |
358 | " 0x00180000 0x010000 - Backup-RAM\n" |
359 | " 0x00200000 0x100000 - Work-RAM-L\n" |
360 | " 0x05a00000 0x080000 - 68000-RAM\n" |
361 | " 0x05c00000 0x080000 - VDP1-VRAM\n" |
362 | " 0x05c80000 0x040000 - VDP1-FB\n" |
363 | " 0x05e00000 0x080000 - VDP2-VRAM\n" |
364 | " 0x05f00000 0x001000 - VDP2-CRAM\n" |
365 | " 0x06000000 0x100000 - Work-RAM-H\n" |
366 | , argv0); |
01698af3 |
367 | exit(1); |
368 | } |
369 | |
370 | static void invarg(int argc, char *argv[], int arg) |
371 | { |
372 | if (arg < argc) |
373 | fprintf(stderr, "invalid arg %d: \"%s\"\n", arg, argv[arg]); |
374 | else |
375 | fprintf(stderr, "missing required argument %d\n", arg); |
376 | exit(1); |
377 | } |
378 | |
379 | int main(int argc, char *argv[]) |
380 | { |
381 | const char *portname = "/dev/ttyUSB0"; |
382 | const char *fname; |
383 | struct stat st; |
384 | void *buf = NULL; |
385 | FILE *f = NULL; |
386 | uint32_t addr; |
387 | size_t size; |
388 | char *endp; |
389 | int arg = 1; |
390 | int ret; |
391 | int fd; |
392 | |
393 | if (argc < 2 || !strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) |
394 | usage(argv[0]); |
395 | |
396 | if (!strcmp(argv[arg], "dev")) { |
397 | arg++; |
398 | if (argv[arg] != NULL) |
399 | portname = argv[arg]; |
400 | else |
401 | invarg(argc, argv, arg); |
402 | arg++; |
403 | } |
404 | |
405 | fd = open(portname, O_RDWR | O_NOCTTY | O_SYNC); |
406 | if (fd < 0) { |
407 | fprintf(stderr, "open %s: ", portname); |
408 | perror(""); |
409 | return 1; |
410 | } |
411 | |
412 | ret = setup(fd); |
413 | if (ret) |
414 | return ret; |
415 | |
416 | while (arg < argc) |
417 | { |
418 | if (!strcmp(argv[arg], "rx") || |
419 | !strcmp(argv[arg], "tx")) |
420 | { |
421 | int tx = !strcmp(argv[arg], "tx"); |
422 | int exe = 0; |
423 | |
424 | if (argc - arg < 4) |
425 | invarg(argc, argv, argc); |
426 | |
427 | endp = NULL; |
428 | addr = strtoul(argv[++arg], &endp, 0); |
429 | if (endp == NULL || *endp != 0) |
430 | invarg(argc, argv, arg); |
431 | |
432 | endp = NULL; |
433 | size = strtoul(argv[++arg], &endp, 0); |
434 | if (endp == NULL || *endp != 0) |
435 | invarg(argc, argv, arg); |
436 | |
437 | fname = argv[++arg]; |
438 | if (tx || strcmp(fname, "/hd/") != 0) { |
439 | f = fopen(fname, tx ? "rb" : "wb"); |
440 | if (f == NULL) { |
441 | fprintf(stderr, "open %s: \n", |
442 | fname); |
443 | perror(""); |
444 | return 1; |
445 | } |
446 | } |
447 | |
448 | if (tx && size == 0) { |
449 | ret = fstat(fileno(f), &st); |
450 | if (ret != 0) { |
451 | fprintf(stderr, "fstat %s: \n", |
452 | fname); |
453 | perror("stat"); |
454 | return 1; |
455 | } |
456 | size = st.st_size; |
457 | } |
458 | |
459 | if (size == 0) { |
460 | fprintf(stderr, "size is 0\n"); |
461 | return 1; |
462 | } |
463 | |
464 | buf = realloc(buf, size); |
465 | if (buf == NULL) { |
466 | fprintf(stderr, "OOM\n"); |
467 | return 1; |
468 | } |
469 | |
470 | if (tx) { |
471 | ret = fread(buf, 1, size, f); |
472 | if (ret != size) { |
473 | fprintf(stderr, "read %s: \n", |
474 | fname); |
475 | perror(""); |
476 | return 1; |
477 | } |
478 | |
479 | if (arg + 1 < argc |
480 | && !strcmp(argv[arg + 1], "x")) |
481 | { |
482 | exe = 1; |
483 | arg++; |
484 | } |
485 | |
486 | ret = do_tx(fd, addr, buf, size, exe); |
487 | if (ret != 0) |
488 | return ret; |
489 | } |
490 | else { |
491 | ret = do_rx(fd, addr, buf, size); |
492 | if (ret != 0) |
493 | return ret; |
494 | |
495 | if (f != NULL) { |
496 | ret = fwrite(buf, 1, size, f); |
497 | if (ret != size) { |
498 | fprintf(stderr, |
499 | "write %s: \n", |
500 | fname); |
501 | perror(""); |
502 | return 1; |
503 | } |
504 | } |
505 | else { |
506 | dump_pkt(buf, size, ""); |
507 | } |
508 | } |
509 | |
510 | if (f != NULL) { |
511 | fclose(f); |
512 | f = NULL; |
513 | } |
514 | arg++; |
515 | } |
516 | else { |
517 | invarg(argc, argv, arg); |
518 | } |
519 | } |
520 | |
521 | return 0; |
522 | } |