| 1 | /* This program sends an td8e Dectape image out the serial port to the PDP8 |
| 2 | restore program. It will prompt for the file to send or use first command |
| 3 | line argument. It needs a config file dumprest.cfg or $HOME/.dumprest.cfg |
| 4 | with the format defined in config.c |
| 5 | |
| 6 | This program should be running before the PDP8 end is started. |
| 7 | |
| 8 | On the PC ctrl-break will terminate the program |
| 9 | */ |
| 10 | #ifdef PC |
| 11 | #include "encom.h" |
| 12 | #else |
| 13 | #include <termios.h> |
| 14 | #include <unistd.h> |
| 15 | #include <memory.h> |
| 16 | #endif |
| 17 | |
| 18 | #include <stdio.h> |
| 19 | #include <fcntl.h> |
| 20 | #include <time.h> |
| 21 | #include <signal.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | |
| 25 | #define ARRAYSIZE(a) (sizeof(a) / sizeof(a[0])) |
| 26 | |
| 27 | int terminate = 0; |
| 28 | |
| 29 | #define BLKSIZE 129 |
| 30 | |
| 31 | #include "config.c" |
| 32 | #include "comm.c" |
| 33 | |
| 34 | main(argc,argv) |
| 35 | int argc; |
| 36 | char *argv[]; |
| 37 | { |
| 38 | int fd; |
| 39 | FILE *in; |
| 40 | char filename[256]; |
| 41 | char serial_dev[256]; |
| 42 | long baud; |
| 43 | int two_stop; |
| 44 | unsigned char buf[3]; |
| 45 | unsigned short block_buf[BLKSIZE]; |
| 46 | int count,block; |
| 47 | unsigned int chksum = 0; |
| 48 | int readsz; |
| 49 | int rc; |
| 50 | |
| 51 | setup_config(&baud,&two_stop,serial_dev); |
| 52 | |
| 53 | if (argc > 1) { |
| 54 | strcpy(filename,argv[1]); |
| 55 | } else { |
| 56 | printf("Enter file name to send\n"); |
| 57 | fflush(stdout); |
| 58 | scanf("%s",filename); |
| 59 | } |
| 60 | |
| 61 | #ifdef PC |
| 62 | in = fopen(filename,"rb"); |
| 63 | #else |
| 64 | in = fopen(filename,"r"); |
| 65 | #endif |
| 66 | if (in == NULL) { |
| 67 | fprintf(stderr,"On file %s ",filename); |
| 68 | perror("open failed"); |
| 69 | exit(1); |
| 70 | } |
| 71 | |
| 72 | #if 0 |
| 73 | /* For testing write to file, only works in unix version */ |
| 74 | fd = open("dat",O_RDWR | O_CREAT | O_TRUNC,0666); |
| 75 | if (fd < 0) { |
| 76 | perror("Open failed on dat"); |
| 77 | exit(1); |
| 78 | } |
| 79 | #else |
| 80 | fd = init_comm(serial_dev,baud,two_stop); |
| 81 | #endif |
| 82 | |
| 83 | count = BLKSIZE; |
| 84 | block = 0; |
| 85 | readsz = 0; |
| 86 | while(!terminate) { |
| 87 | /* If start of new block */ |
| 88 | if (count == BLKSIZE) { |
| 89 | count = 0; |
| 90 | /* If sent all blocks pdp8 asked for wait for it to ask for more */ |
| 91 | if (--readsz <= 0) { |
| 92 | while (ser_read(fd,(char *)buf,1) < 1 && !terminate); |
| 93 | readsz = buf[0]; |
| 94 | /* |
| 95 | printf("Got readsize %d\n",readsz); |
| 96 | */ |
| 97 | } |
| 98 | if ((rc = fread(block_buf,2,BLKSIZE,in)) < BLKSIZE) { |
| 99 | /* No more data */ |
| 100 | if (rc < 0) { |
| 101 | perror("\nfile read failed\n"); |
| 102 | exit(1); |
| 103 | } |
| 104 | /* Must be at start of block when data done */ |
| 105 | if (rc != 0) { |
| 106 | printf("\nEarly end of file %d, %d\n",count,rc); |
| 107 | exit(1); |
| 108 | } |
| 109 | /* Send end of data flag */ |
| 110 | buf[0] = 0xfe; |
| 111 | ser_write(fd,(char *)buf,1); |
| 112 | /* Wait for PDP to ask for checksum */ |
| 113 | while (ser_read(fd,(char *)buf,1) < 1 && !terminate); |
| 114 | chksum = -chksum; |
| 115 | buf[0] = chksum; |
| 116 | buf[1] = (chksum & 0xfff) >> 8; |
| 117 | ser_write(fd,(char *)buf,2); |
| 118 | exit(0); |
| 119 | } |
| 120 | buf[0] = 0xff; |
| 121 | ser_write(fd,(char *)buf,1); |
| 122 | block++; |
| 123 | if (block % 5 == 0) { |
| 124 | printf("Block %d\r",block); |
| 125 | fflush(stdout); |
| 126 | } |
| 127 | } |
| 128 | /* Send 2 words as 3 bytes */ |
| 129 | chksum += block_buf[count]; |
| 130 | buf[0] = block_buf[count]; |
| 131 | if (count + 1 == BLKSIZE) { |
| 132 | buf[1] = (block_buf[count] >> 8); |
| 133 | count++; |
| 134 | ser_write(fd,(char *)buf,2); |
| 135 | } else { |
| 136 | chksum += block_buf[count+1]; |
| 137 | buf[1] = (block_buf[count] >> 8) | (block_buf[count+1] << 4); |
| 138 | buf[2] = (block_buf[count+1] >> 4); |
| 139 | count += 2; |
| 140 | ser_write(fd,(char *)buf,3); |
| 141 | } |
| 142 | } |
| 143 | return 1; |
| 144 | } |