Abstract Version out into header file and bump version
[uccvend-snackrom.git] / ROM2 / main_basic.c
index a6a8a15..f48c247 100644 (file)
@@ -4,8 +4,7 @@
  * and snacks.
  */
 
-#define VERSION_STRING "R 20040622"
-
+#include "version.h"
 #include "display_basic.h"
 #include "keypad.h"
 #include "chime.h"
@@ -34,6 +33,14 @@ bool check_standalone() {
        return 0;
 }
 
+bool check_badpoke() {
+       if (cant_poke()) {
+               send_string("099 Can't poke without flipping DIP SW 3." CRLF);
+               return 1;
+       }
+       return 0;
+}
+
 void unknown_command() {
        send_string("012 Unknown command. Type HELP for help." CRLF);
 }
@@ -74,10 +81,11 @@ void dispense_something() {
                send_string("102 Vend all motors starting." CRLF);
                for (motor[0] = '0'; motor[0] <= '9'; motor[0]++) {
                        for (motor[1] = '0'; motor[1] <= '9'; motor[1]++) {
+                               if (motor[1] == '5') continue; /* there is now row 5 */
                                send_string("101 Vending ");
                                send_string(motor);
                                send_string(CRLF);
-                               motor_reply(dispense_motor(motor[0]*10+motor[1]));
+                               motor_reply(dispense_motor((motor[0]-'0')*10+(motor[1]-'0')));
                        }
                }
                send_string("102 Vend all motors complete." CRLF);
@@ -138,7 +146,7 @@ void give_change() {
                (sci_rx_buf[3] < '0') || (sci_rx_buf[3] > '9') ||
                (sci_rx_buf[4] < '0') || (sci_rx_buf[4] > '9') ||
                (sci_rx_buf[5] < '0') || (sci_rx_buf[5] > '9')) {
-               send_nack();
+               //send_nack();
        }
        cost = sci_rx_buf[1] - '0';
        cost *= 10; cost = sci_rx_buf[2] - '0';
@@ -147,7 +155,7 @@ void give_change() {
        cost *= 10; cost = sci_rx_buf[5] - '0';
 
        coin_cost(cost);
-       send_ack();
+       //send_ack();
 } 
 
 void send_keypress(u8 key) {
@@ -227,7 +235,7 @@ void do_silence() {
                send_string("511 Unknown silence duration." CRLF);
                return;
        }
-       send_string("500 Silence started." CRLF);
+       send_string("501 Silence started." CRLF);
        return;
 }
 
@@ -252,6 +260,86 @@ void ping_pong() {
        send_string("000 PONG!" CRLF);
 }
 
+u16 hex2addr(char* addrptr) {
+       u16 v;
+       v = hex2u8(addrptr[0], addrptr[1]) << 8;
+       v |= hex2u8(addrptr[2], addrptr[3]);
+       return v;
+}
+
+void peek() {
+       if (!my_strncmp("EEK", (char*)sci_rx_buf+1, 3)) {
+               unknown_command();
+               return;
+       }
+       if (check_badpoke()) return;
+       if (ishex(sci_rx_buf[4]) && ishex(sci_rx_buf[5]) && ishex(sci_rx_buf[6]) &&
+                       ishex(sci_rx_buf[7]) && sci_rx_buf[8] == '\0') {
+               u16 v = hex2addr((char*)(sci_rx_buf+4));
+               v = *((u8*)v);
+               send_string("090 ");
+               send_string(u82hex(v));
+               send_string(CRLF);
+               return;
+       }
+       send_string("091 Invalid location given." CRLF);
+}
+
+void poke() {
+       if (!my_strncmp("OKE", (char*)sci_rx_buf+1, 3)) {
+               unknown_command();
+               return;
+       }
+       if (check_badpoke()) return;
+       if (ishex(sci_rx_buf[4]) && ishex(sci_rx_buf[5]) && ishex(sci_rx_buf[6]) &&
+                       ishex(sci_rx_buf[7]) && ishex(sci_rx_buf[8]) && ishex(sci_rx_buf[9])
+                       && sci_rx_buf[10] == '\0') {
+               u16 v;
+               v = hex2addr((char*)(sci_rx_buf+4));
+               *(u8*)v = hex2u8(sci_rx_buf[8], sci_rx_buf[9]);
+               send_string("080 Written." CRLF);
+               return;
+       }
+       send_string("081 Invalid location or byte given." CRLF);
+}
+
+void jump() {
+       if (!my_strncmp("UMP", (char*)sci_rx_buf+1, 3)) {
+               unknown_command();
+               return;
+       }
+       if (check_badpoke()) return;
+       if (ishex(sci_rx_buf[4]) && ishex(sci_rx_buf[5]) && ishex(sci_rx_buf[6]) &&
+                       ishex(sci_rx_buf[7]) && sci_rx_buf[8] == '\0') {
+               u16 v = hex2addr((char*)(sci_rx_buf+4));
+               send_string("070 Jumping now." CRLF);
+               asm volatile ("jsr %0" : : "m"(*(u16*)v) : "d");
+               send_string("071 And back." CRLF);
+               return;
+       }
+       send_string("079 Invalid location given." CRLF);
+}
+
+void do_set_password() {
+       u8 i;
+       bool good = 1;
+       if (check_badpoke()) return;
+       for (i=1; i < 17; i++) {
+               if (sci_rx_buf[i] == '\0') {
+                       good = 0;
+                       break;
+               }
+       }
+       if (good && sci_rx_buf[17] != '\0') good = 0;
+       if (!good) {
+               send_string("061 Password must be exactly 16 characters." CRLF);
+               return;
+       }
+
+       mic_set_secret((char*)(sci_rx_buf+1));
+       send_string("060 Password has been set." CRLF);
+}
+
 void send_prompt() {
        if (must_verify()) {
                send_string(u82hex(mic_challenge >> 8));
@@ -322,16 +410,27 @@ void help() {
        send_string(
                "Valid commands are:" CRLF
                " ABOUT         ROM information" CRLF
-               " PING          pongs" CRLF
+               " B[S][nn]      beep [synchronously] for a duration nn (optional)" CRLF
+               " C[S][nn]      silence [synchronously] for a duration nn (optional)" CRLF
+               " Dxxxxxxxxxx   show a message on the display" CRLF
                " ECHO {ON|OFF} turn echo on or off" CRLF
-               " Vnn           vend an item" CRLF
-               " VALL          vend all items" CRLF
-               " DXXXXXXXXXX   show a message on the display" CRLF
-               " B[nn]         beep for a duration nn (optional)" CRLF
-               " S[...]        query all internal switch states" CRLF
-               " H[...]        this help screen" CRLF
                " GETROM        download the ROM source code using xmodem" CRLF
-               "Comments start with a #" CRLF
+               " H[...]        this help screen" CRLF
+               "*JUMPxxxx      jumps to a subroutine at location xxxx" CRLF
+               "*PEEKxxxx      returns the value of the byte at location xxxx" CRLF
+               "*POKExxxxyy    sets the value of location xxxx to yy" CRLF
+               " PING          pongs" CRLF
+               " S[...]        query all internal switch states" CRLF
+               "+Vnn           vend an item" CRLF
+               "+VALL          vend all items" CRLF
+               "*Wxxxxxxxxxxxx set a new password for authenticated vends. xxx=16 chars" CRLF
+               "               password will be converted to uppercase" CRLF
+               "" CRLF
+               "Very few functions are available when the machine is in standalone " CRLF
+               "mode (DIP SW 1 is set)" CRLF
+               "+ denotes that this item requires authentication if DIP SW 2 is set" CRLF
+               "* denotes that DIP SW 3 must be set to use these" CRLF
+               "Commands starting with # are ignored (comments)" CRLF
        );
 }
 
@@ -343,12 +442,16 @@ void getrom() {
                return;
        }
        char s[4];
+       
+       u16 rom_addr;
+       rom_addr = (u16)(&_rom_src_data);
+
        send_string("Writing to serial port (maybe). Size is 0x");
        send_string(u82hex(_rom_src_len >> 8));
        send_string(u82hex(_rom_src_len & 0xff));
        send_string("@0x");
-       send_string(u82hex((u16)(&_rom_src_data) >> 8));
-       send_string(u82hex((u16)(&_rom_src_data) & 0xff));
+       send_string(u82hex(rom_addr >> 8));
+       send_string(u82hex(rom_addr & 0xff));
        send_string(" with signature ");
        s[0] = _rom_src_data[0];
        s[1] = _rom_src_data[1];
@@ -404,9 +507,6 @@ void quit() {
                unknown_command();
 }
 
-//SHA1_CTX ctx;
-//u8 sha1_digest[SHA1_SIGNATURE_SIZE];
-
 int main() {
        u8 i;
        for (i = 0; i < 11; i++)
@@ -443,9 +543,6 @@ int main() {
 
        send_string("5N4X0RZ R US" CRLF);
 
-       mic_challenge = 0;
-       mic_set_secret("ABCDEFGH12345678");
-       
        last_standalone = is_standalone();
        if (last_standalone)
                cur_motor[0] = 0xff;
@@ -489,22 +586,14 @@ int main() {
                }
 
                if (sci_have_packet) {
+                       send_string(CRLF);
                        switch (sci_rx_buf[0]) {
                                case '\0':
                                case '#':
                                        send_string(CRLF);
                                        break;
-                               case 'E':
-                                       set_echo();
-                                       break;
-                               case 'H':
-                                       help();
-                                       break;
-                               case 'V':
-                                       dispense_something();
-                                       break;
-                               case 'D':
-                                       write_to_display();
+                               case 'A':
+                                       about();
                                        break;
                                case 'B': 
                                        do_chime();
@@ -512,23 +601,43 @@ int main() {
                                case 'C': 
                                        do_silence();
                                        break;
-                               case 'P':
-                                       ping_pong();
+                               case 'D':
+                                       write_to_display();
                                        break;
-                               case 'A':
-                                       about();
+                               case 'E':
+                                       set_echo();
                                        break;
-                               case 'S':
-                                       print_switches(1);
+                               case 'G':
+                                       getrom();
+                                       break;
+                               case 'H':
+                                       help();
                                        break;
                                case 'M':
                                        moo();
                                        break;
+                               case 'P':
+                                       if (sci_rx_buf[1] == 'I')
+                                               ping_pong();
+                                       else if (sci_rx_buf[1] == 'O')
+                                               poke();
+                                       else if (sci_rx_buf[1] == 'E')
+                                               peek();
+                                       break;
+                               case 'J':
+                                       jump();
+                                       break;
                                case 'Q':
                                        quit();
                                        break;
-                               case 'G':
-                                       getrom();
+                               case 'S':
+                                       print_switches(1);
+                                       break;
+                               case 'V':
+                                       dispense_something();
+                                       break;
+                               case 'W':
+                                       do_set_password();
                                        break;
                                default:
                                        // shurg

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