ROM2/main_basic.c

   1 /*
   2  * main_basic.c - a simplified main procedure that relies upon a ersver to do
   3  * anything smart. Just be a dumb interface to a display, keypad, coin mech
   4  * and snacks.
   5  */
   6
   7 #define VERSION_STRING "R 20040622"
   8
   9 #include "display_basic.h"
  10 #include "keypad.h"
  11 #include "chime.h"
  12 #include "coinmech.h"
  13 #include "motors.h"
  14 #include "sci.h"
  15 #include "vend.h"
  16 #include "xmodem.h"
  17
  18 u8 last_standalone;
  19 u8 last_switch_input;
  20 u8 last_misc_input;
  21 u16 last_coin_value;
  22 bool last_door_open;
  23 char display_buf[11];
  24 /* cur_motor[0] is 0 for nothing, or 1..10, or 0xff to say redraw.
  25  * cur_motor[1] is 0..9 and only meaningful is cur_motor[0] != 0. */
  26 u8 cur_motor[2];
  27
  28 bool check_standalone() {
  29         if (is_standalone()) {
  30                 send_string("011 In standalone mode. Function disabled." CRLF);
  31                 return 1;
  32         }
  33         return 0;
  34 }
  35
  36 void unknown_command() {
  37         send_string("012 Unknown command. Type HELP for help." CRLF);
  38 }
  39
  40 void motor_reply(u8 code) {
  41         /* returns a message of the form MXYY - X is return code, YY is motor */
  42         switch (code) {
  43                 case MOTOR_SUCCESS:
  44                         send_string("100 Vend successful." CRLF);
  45                         break;
  46                 case MOTOR_NOSLOT:
  47                         send_string("151 No motor there." CRLF);
  48                         break;
  49                 case MOTOR_CURRENT_FAIL:
  50                         send_string("152 Over current." CRLF);
  51                         break;
  52                 case MOTOR_HOME_FAIL:
  53                         send_string("153 Home sensors failing." CRLF);
  54                         break;
  55                 default:
  56                         send_string("159 Unknown motor error." CRLF);
  57         }
  58 }
  59
  60 void dispense_something() {
  61         /* process a message VXX in sci_rx_buf where XX is motor number */
  62         u8 slot;
  63
  64         if (check_standalone()) return;
  65
  66         if (my_strncmp("ALL", (char*)sci_rx_buf+1, 3)) {
  67                 char motor[3];
  68                 motor[2] = '\0';
  69                 send_string("102 Vend all motors starting." CRLF);
  70                 for (motor[0] = '0'; motor[0] <= '9'; motor[0]++) {
  71                         for (motor[1] = '0'; motor[1] <= '9'; motor[1]++) {
  72                                 send_string("101 Vending ");
  73                                 send_string(motor);
  74                                 send_string(CRLF);
  75                                 motor_reply(dispense_motor(motor[0]*10+motor[1]));
  76                         }
  77                 }
  78                 send_string("102 Vend all motors complete." CRLF);
  79                 return;
  80         }
  81
  82         if ((sci_rx_buf[1] < '0') || (sci_rx_buf[1] > '9') ||
  83                 (sci_rx_buf[2] < '0') || (sci_rx_buf[2] > '9')) {
  84                 sci_rx_buf[1] = sci_rx_buf[2] = '0';
  85                 motor_reply(MOTOR_NOSLOT);
  86                 return;
  87         }
  88
  89         slot = (sci_rx_buf[1] - '0') * 10;
  90         slot += sci_rx_buf[2] - '0';
  91
  92         motor_reply(dispense_motor(slot));
  93 }
  94
  95 void write_to_display() {
  96         /* process a message in the form DXXXXXXXXXX to send to display */
  97         u8 i;
  98         char buf[11];
  99
 100         if (check_standalone()) return;
 101
 102         for (i = 0; i < 10; i++)
 103                 if (sci_rx_buf[i+1])
 104                         buf[i] = sci_rx_buf[i+1];
 105                 else
 106                         break;
 107
 108         for (; i < 10; i++) /* pad the rest out with spaces */
 109                 buf[i] = ' ';
 110         buf[i] = '\0';
 111
 112         set_msg(buf);
 113         send_string("300 Written." CRLF);
 114 }
 115
 116 void send_balance() {
 117         sci_tx_buf[0] = 'C';
 118         sci_tx_buf[1] = have_change?'0':'1';
 119         sci_tx_buf[2] = (coin_value/10000)%10;
 120         sci_tx_buf[3] = (coin_value/1000)%10;
 121         sci_tx_buf[4] = (coin_value/100)%10;
 122         sci_tx_buf[5] = (coin_value/10)%10;
 123         sci_tx_buf[6] = coin_value%10;
 124         sci_tx_buf[8] = 0;
 125         send_buffer(1);
 126 }
 127
 128 void give_change() {
 129         u16 cost;
 130
 131         if ((sci_rx_buf[1] < '0') || (sci_rx_buf[1] > '9') ||
 132                 (sci_rx_buf[2] < '0') || (sci_rx_buf[2] > '9') ||
 133                 (sci_rx_buf[3] < '0') || (sci_rx_buf[3] > '9') ||
 134                 (sci_rx_buf[4] < '0') || (sci_rx_buf[4] > '9') ||
 135                 (sci_rx_buf[5] < '0') || (sci_rx_buf[5] > '9')) {
 136                 send_nack();
 137         }
 138         cost = sci_rx_buf[1] - '0';
 139         cost *= 10; cost = sci_rx_buf[2] - '0';
 140         cost *= 10; cost = sci_rx_buf[3] - '0';
 141         cost *= 10; cost = sci_rx_buf[4] - '0';
 142         cost *= 10; cost = sci_rx_buf[5] - '0';
 143
 144         coin_cost(cost);
 145         send_ack();
 146 }
 147
 148 void send_keypress(u8 key) {
 149         /* send a packet of the form KX with X being the key, or R for reset */
 150         if (is_standalone()) return;
 151
 152         sci_tx_buf[0] = '2';
 153         if (key == KEY_RESET) {
 154                 sci_tx_buf[1] = '1';
 155                 sci_tx_buf[2] = '1';
 156         } else {
 157                 sci_tx_buf[1] = '0';
 158                 sci_tx_buf[2] = (key%10)+'0';
 159         }
 160         sci_tx_buf[3] = '\0';
 161         send_buffer(0);
 162         send_string(" key." CRLF);
 163 }
 164
 165 void send_door_msg(bool open) {
 166         if (is_standalone()) return;
 167         sci_tx_buf[0] = '4';
 168         sci_tx_buf[1] = '0';
 169         sci_tx_buf[2] = open?'1':'0';
 170         send_buffer(0);
 171         if (open)
 172                 send_string(" door open." CRLF);
 173         else
 174                 send_string(" door closed." CRLF);
 175 }
 176
 177 u8 hexchar2u8(char b) {
 178         if (b >= '0' && b <= '9') return b-'0';
 179         if (b >= 'a' && b <= 'f') return b-'a'+0x0a;
 180         if (b >= 'A' && b <= 'F') return b-'A'+0x0a;
 181         return 0;
 182 }
 183
 184 char nibble2hexchar(u8 b) {
 185         if (b <= 9) return b+'0';
 186         if (b >= 10 && b <= 15) return b+'A'-10;
 187         return 'X';
 188 }
 189
 190 u8 hex2u8(char msb, char lsb) {
 191         return (hexchar2u8(msb) << 4) + hexchar2u8(lsb);
 192 }
 193
 194 static char hexconv_buf[3];
 195 char* u82hex(u8 a) {
 196         hexconv_buf[0] = nibble2hexchar((a&0xf0) >> 4);
 197         hexconv_buf[1] = nibble2hexchar(a&0x0f);
 198         hexconv_buf[2] = '\0';
 199         return hexconv_buf;
 200 }
 201
 202 void do_chime() {
 203         if (check_standalone()) return;
 204         if (sci_rx_buf[1] == '\0')
 205                 chime_start();
 206         else if (sci_rx_buf[2] != '\0' && sci_rx_buf[3] == '\0')
 207                 chime_for(hex2u8(sci_rx_buf[1], sci_rx_buf[2]));
 208         else {
 209                 send_string("510 Unknown chime duration." CRLF);
 210                 return;
 211         }
 212         send_string("500 Chimed." CRLF);
 213 }
 214
 215 void print_switches(u8 prompted) {
 216         if (prompted)
 217                 send_string("600 ");
 218         else
 219                 send_string("610 ");
 220         send_string(u82hex(misc_input));
 221         send_string(" ");
 222         send_string(u82hex(switch_input));
 223         send_string(CRLF);
 224 }
 225
 226 void ping_pong() {
 227         /* make sure it's really a ping */
 228         if (!my_strncmp("ING", (char*)sci_rx_buf+1, 3)) {
 229                 unknown_command();
 230                 return;
 231         }
 232         /* respond with ack & pong */
 233         send_string("000 PONG!" CRLF);
 234 }
 235
 236 void send_prompt() {
 237         send_string(is_standalone()?"$ ":"# ");
 238 }
 239
 240 void about() {
 241         if (!my_strncmp("BOUT", (char*)sci_rx_buf+1, 4)) {
 242                 unknown_command();
 243                 return;
 244         }
 245         send_string(
 246                 "-----------------------------------------------------------------" CRLF
 247                 "    ROM2 (C) 2004 Bernard Blackham <[email protected]>" CRLF
 248                 "-----------------------------------------------------------------" CRLF
 249                 "                                        Revision " VERSION_STRING CRLF
 250                 "" CRLF
 251                 "   This snack machine was brought to you by " CRLF
 252                 "    Bernard Blackham" CRLF
 253                 "    Mark Tearle" CRLF
 254                 "    Harry McNally" CRLF
 255                 "    Michal Gornisiewicz" CRLF
 256                 "    and others." CRLF
 257                 "" CRLF
 258                 " Another UCC project in action.         http://www.ucc.asn.au/" CRLF
 259         );
 260 }
 261
 262 void set_echo() {
 263         if (my_strncmp("CHO ON", (char*)sci_rx_buf+1, 6))
 264                 sci_echo = 1;
 265         else if (my_strncmp("CHO OFF", (char*)sci_rx_buf+1, 7))
 266                 sci_echo = 0;
 267         else
 268                 unknown_command();
 269 }
 270
 271 void moo() {
 272         if (!my_strncmp("OO", (char*)sci_rx_buf+1, 2)) {
 273                 unknown_command();
 274                 return;
 275         }
 276         send_string(
 277 "       ____________" CRLF
 278 "       |__________|" CRLF
 279 "      /           /\\" CRLF
 280 "     /  U C C    /  \\" CRLF
 281 "    /___________/___/|" CRLF
 282 "    |          |     |" CRLF
 283 "    |  ==\\ /== |     |" CRLF
 284 "    |   O   O  | \\ \\ |" CRLF
 285 "    |     <    |  \\ \\|" CRLF
 286 "   /|          |   \\ \\" CRLF
 287 "  / |  \\_____/ |   / /" CRLF
 288 " / /|          |  / /|" CRLF
 289 "/||\\|          | /||\\/" CRLF
 290 "    -------------|   " CRLF
 291 "        | |    | | " CRLF
 292 "       <__/    \\__>" CRLF
 293 "" CRLF
 294 "  ... Where's the cheese?" CRLF
 295         );
 296 }
 297
 298 void help() {
 299         send_string(
 300                 "Valid commands are:" CRLF
 301                 " ABOUT         ROM information" CRLF
 302                 " PING          pongs" CRLF
 303                 " ECHO {ON|OFF} turn echo on or off" CRLF
 304                 " Vnn           vend an item" CRLF
 305                 " VALL          vend all items" CRLF
 306                 " DXXXXXXXXXX   show a message on the display" CRLF
 307                 " B[nn]         beep for a duration nn (optional)" CRLF
 308                 " S[...]        query all internal switch states" CRLF
 309                 " H[...]        this help screen" CRLF
 310                 " GETROM        download the ROM source code using xmodem" CRLF
 311                 "Comments start with a #" CRLF
 312         );
 313 }
 314
 315 extern const char _rom_src_data[];
 316 extern const u16 _rom_src_len;
 317 void getrom() {
 318         if (!my_strncmp("ETROM", (char*)sci_rx_buf+1, 5)) {
 319                 unknown_command();
 320                 return;
 321         }
 322         char s[4];
 323         send_string("Writing to serial port (maybe). Size is 0x");
 324         send_string(u82hex(_rom_src_len >> 8));
 325         send_string(u82hex(_rom_src_len & 0xff));
 326         send_string(" with signature ");
 327         s[0] = _rom_src_data[0];
 328         s[1] = _rom_src_data[1];
 329         s[2] = _rom_src_data[2];
 330         s[3] = '\0';
 331         send_string(s);
 332         send_string(CRLF " Type YES to download via XMODEM: ");
 333         msg_clr();
 334         while (!sci_have_packet); /* spin */
 335         if (!my_strncmp("YES", (char*)sci_rx_buf, 3)) return;
 336
 337         sci_init();
 338         sci_doing_xmodem = 1;
 339         if (!xmodem_init_xfer()) {
 340                 sci_doing_xmodem = 0;
 341                 send_string("XMODEM init failed. Nobody's listening :(" CRLF);
 342                 return;
 343         }
 344         char *p = (char*)_rom_src_data;
 345         char *end = (char*)_rom_src_data+_rom_src_len;
 346         bool aborted = 0;
 347         while (1) {
 348                 if (!xmodem_send_packet((char*)p, 128)) {
 349                         aborted = 1;
 350                         break;
 351                 }
 352                 p += 128;
 353                 if (p + 128 > end) {
 354                         /* send partial packet */
 355                         if (!xmodem_send_packet((char*)p, end-p)) aborted = 1;
 356                         break;
 357                 }
 358         }
 359
 360         xmodem_finish_xfer();
 361         sci_doing_xmodem = 0;
 362         if (aborted)
 363                 send_string(CRLF "Transfer aborted." CRLF);
 364         else
 365                 send_string(CRLF "Transfer complete." CRLF);
 366 }
 367
 368 void quit() {
 369         if (my_strncmp("UIT", (char*)sci_rx_buf+1, 3))
 370                 send_string("013 You can't quit you doofus." CRLF);
 371         else
 372                 unknown_command();
 373 }
 374
 375 int main() {
 376         u8 i;
 377         for (i = 0; i < 11; i++)
 378                 display_buf[i] = ' ';
 379         display_buf[10] = '\0';
 380
 381         changer_output = 0x7f;
 382         _io_ports[M6811_PORTA] = 0xc0; /* display on. talking to serial port */
 383         _io_ports[M6811_DDRA] = 0xfc;
 384         _io_ports[M6811_DDRD] = 0x3e;
 385         _io_ports[M6811_SPCR] = M6811_MSTR | M6811_SPR1;
 386         set_misc_output(0x00);
 387
 388         display_init();
 389         set_msg(" HELLO    ");
 390         delay(1000);
 391
 392         unlock(); /* enable interrupts */
 393
 394         set_msg("  CRUEL   ");
 395
 396         //comm_init();
 397         //coinmech_init();
 398         sci_init();
 399         keypad_init();
 400         last_coin_value = 0;
 401         last_door_open = 0;
 402
 403         delay(1000);
 404
 405         set_msg("   WORLD  ");
 406         delay(1000);
 407
 408         chime_start();
 409
 410         send_string("5N4X0RZ R US" CRLF);
 411
 412         last_standalone = is_standalone();
 413         if (last_standalone)
 414                 cur_motor[0] = 0xff;
 415         else
 416                 cur_motor[0] = 0;
 417         send_prompt();
 418
 419         last_switch_input = switch_input;
 420         last_misc_input = misc_input;
 421
 422         while(1) {
 423                 if (cur_motor[0] == 0xff) { /* signal to say redraw screen */
 424                         set_msg("*5N4X0RZ* ");
 425                         cur_motor[0] = 0;
 426                 }
 427
 428                 if (door_open() != last_door_open) {
 429                         last_door_open = door_open();
 430                         send_door_msg(last_door_open);
 431                         chime_start();
 432                         set_msg(last_door_open?"DOOR OPEN ":"DOOR CLOSE");
 433                 }
 434
 435                 if (last_standalone != is_standalone()) {
 436                         /* somebody flicked the standalone switch */
 437                         msg_clr();
 438                         send_string(CRLF);
 439                         send_prompt();
 440                         last_standalone = is_standalone();
 441                 }
 442
 443                 if (last_misc_input != misc_input) {
 444                         print_switches(0);
 445                         last_misc_input = misc_input;
 446                 }
 447
 448                 if (last_switch_input != switch_input) {
 449                         print_switches(0);
 450                         last_switch_input = switch_input;
 451                 }
 452
 453                 if (sci_have_packet) {
 454                         switch (sci_rx_buf[0]) {
 455                                 case '\0':
 456                                 case '#':
 457                                         send_string(CRLF);
 458                                         break;
 459                                 case 'E':
 460                                         set_echo();
 461                                         break;
 462                                 case 'H':
 463                                         help();
 464                                         break;
 465                                 case 'V':
 466                                         dispense_something();
 467                                         break;
 468                                 case 'D':
 469                                         write_to_display();
 470                                         break;
 471                                 case 'B':
 472                                         do_chime();
 473                                         break;
 474                                 case 'P':
 475                                         ping_pong();
 476                                         break;
 477                                 case 'A':
 478                                         about();
 479                                         break;
 480                                 case 'S':
 481                                         print_switches(1);
 482                                         break;
 483                                 case 'M':
 484                                         moo();
 485                                         break;
 486                                 case 'Q':
 487                                         quit();
 488                                         break;
 489                                 case 'G':
 490                                         getrom();
 491                                         break;
 492                                 default:
 493                                         // shurg
 494                                         unknown_command();
 495                                         break;
 496                         }
 497                         msg_clr();
 498                         send_prompt();
 499                 }
 500
 501                 keypad_read();
 502                 if (keypad_pressed()) {
 503                         if (is_standalone()) {
 504                                 if (last_key == KEY_RESET) {
 505                                         cur_motor[0] = 0xff;
 506                                 } else {
 507                                         if (cur_motor[0]) {
 508                                                 u8 motor_num;
 509                                                 cur_motor[1] = last_key%10;
 510                                                 display_buf[1] = cur_motor[1]+'0';
 511                                                 set_msg(display_buf);
 512
 513                                                 motor_num = cur_motor[0]%10;
 514                                                 motor_num *= 10;
 515                                                 motor_num += cur_motor[1];
 516                                                 switch (dispense_motor(motor_num)) {
 517                                                         case MOTOR_HOME_FAIL:
 518                                                                 set_msg(" HOME FAIL ");
 519                                                                 break;
 520                                                         case MOTOR_CURRENT_FAIL:
 521                                                                 set_msg(" OVER CRNT ");
 522                                                                 break;
 523                                                         case MOTOR_SUCCESS:
 524                                                                 set_msg("THANK  YOU");
 525                                                                 break;
 526                                                         case MOTOR_NOSLOT:
 527                                                                 set_msg(" NO MOTOR ");
 528                                                                 break;
 529                                                         default:
 530                                                                 set_msg("ERRRRRRRR?");
 531                                                                 break;
 532                                                 }
 533
 534                                                 display_buf[0] = ' ';
 535                                                 display_buf[1] = ' ';
 536                                                 cur_motor[0] = 0xff;
 537                                                 delay(500);
 538                                         } else {
 539                                                 cur_motor[0] = last_key;
 540                                                 display_buf[0] = (last_key%10)+'0';
 541                                                 set_msg(display_buf);
 542                                         }
 543                                 }
 544                         } else
 545                                 send_keypress(last_key);
 546                 }
 547
 548                 /*
 549                 if (coin_value != last_coin_value) {
 550                         send_balance();
 551                         last_coin_value = coin_value;
 552                 }
 553                 */
 554         }
 555 }