| 1 | /* LIBFTDI EEPROM access example |
| 2 | |
| 3 | This program is distributed under the GPL, version 2 |
| 4 | */ |
| 5 | |
| 6 | #include <stdio.h> |
| 7 | #include <stdlib.h> |
| 8 | #include <string.h> |
| 9 | #include <ctype.h> |
| 10 | #include <unistd.h> |
| 11 | #include <getopt.h> |
| 12 | #include <ftdi.h> |
| 13 | |
| 14 | int main(int argc, char **argv) |
| 15 | { |
| 16 | struct ftdi_context *ftdi; |
| 17 | struct ftdi_eeprom eeprom; |
| 18 | unsigned char buf[2048]; |
| 19 | int size; |
| 20 | int f, i, j; |
| 21 | int vid = 0x0403; |
| 22 | int pid = 0x6010; |
| 23 | char const *desc = 0; |
| 24 | char const *serial = 0; |
| 25 | int erase = 0; |
| 26 | int use_defaults = 0; |
| 27 | int large_chip = 0; |
| 28 | |
| 29 | if ((ftdi = ftdi_new()) == 0) |
| 30 | { |
| 31 | fprintf(stderr,"Failed to allocate ftdi structure\n"); |
| 32 | return EXIT_FAILURE; |
| 33 | } |
| 34 | |
| 35 | while ((i = getopt(argc, argv, "d::ev:p:P:S:")) != -1) |
| 36 | { |
| 37 | switch (i) |
| 38 | { |
| 39 | case 'd': |
| 40 | use_defaults = 1; |
| 41 | if(optarg) |
| 42 | large_chip = 0x66; |
| 43 | break; |
| 44 | case 'e': |
| 45 | erase = 1; |
| 46 | break; |
| 47 | case 'v': |
| 48 | vid = strtoul(optarg, NULL, 0); |
| 49 | break; |
| 50 | case 'p': |
| 51 | pid = strtoul(optarg, NULL, 0); |
| 52 | break; |
| 53 | case 'P': |
| 54 | desc = optarg; |
| 55 | break; |
| 56 | case 'S': |
| 57 | serial = optarg; |
| 58 | break; |
| 59 | default: |
| 60 | fprintf(stderr, "usage: %s [options]\n", *argv); |
| 61 | fprintf(stderr, "\t-d[num] Work with default valuesfor 128 Byte " |
| 62 | "EEPROM or for 256 Byte EEPROm if some [num] is given\n"); |
| 63 | fprintf(stderr, "\t-e erase\n"); |
| 64 | fprintf(stderr, "\t-v verbose decoding\n"); |
| 65 | fprintf(stderr, "\t-p <number> Search for device with PID == number\n"); |
| 66 | fprintf(stderr, "\t-v <number> Search for device with VID == number\n"); |
| 67 | fprintf(stderr, "\t-P <string? Search for device with given " |
| 68 | "product description\n"); |
| 69 | fprintf(stderr, "\t-S <string? Search for device with given " |
| 70 | "serial number\n"); |
| 71 | exit(-1); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | // Init |
| 76 | if (ftdi_init(ftdi) < 0) |
| 77 | { |
| 78 | fprintf(stderr, "ftdi_init failed\n"); |
| 79 | return EXIT_FAILURE; |
| 80 | } |
| 81 | |
| 82 | // Select first interface |
| 83 | ftdi_set_interface(ftdi, INTERFACE_ANY); |
| 84 | |
| 85 | // Open device |
| 86 | f = ftdi_usb_open_desc(ftdi, vid, pid, desc, serial); |
| 87 | if (f < 0) |
| 88 | { |
| 89 | fprintf(stderr, "Device VID 0x%04x PID 0x%04x", vid, pid); |
| 90 | if(desc) |
| 91 | fprintf(stderr, " Desc %s", desc); |
| 92 | if(serial) |
| 93 | fprintf(stderr, " Serial %s", serial); |
| 94 | fprintf(stderr, "\n"); |
| 95 | fprintf(stderr, "unable to open ftdi device: %d (%s)\n", |
| 96 | f, ftdi_get_error_string(ftdi)); |
| 97 | |
| 98 | exit(-1); |
| 99 | } |
| 100 | |
| 101 | if (erase) |
| 102 | { |
| 103 | ftdi_eeprom_setsize(ftdi, &eeprom, 2048); |
| 104 | f = ftdi_erase_eeprom(ftdi); |
| 105 | if (f < 0) |
| 106 | { |
| 107 | fprintf(stderr, "Erase failed: %s", |
| 108 | ftdi_get_error_string(ftdi)); |
| 109 | return -2; |
| 110 | } |
| 111 | if (ftdi->eeprom->chip == -1) |
| 112 | fprintf(stderr, "No EEPROM\n"); |
| 113 | else if (ftdi->eeprom->chip == 0) |
| 114 | fprintf(stderr, "Internal EEPROM\n"); |
| 115 | else |
| 116 | fprintf(stderr, "Found 93x%02x\n",ftdi->eeprom->chip); |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | size = 2048; |
| 121 | memset(buf,0, size); |
| 122 | ftdi->eeprom = &eeprom; |
| 123 | if(use_defaults) |
| 124 | { |
| 125 | ftdi_eeprom_initdefaults(ftdi); |
| 126 | ftdi->eeprom->manufacturer="IKDA"; |
| 127 | ftdi->eeprom->product="CPS-CONN"; |
| 128 | ftdi->eeprom->serial="0001"; |
| 129 | ftdi->eeprom->chip= large_chip; |
| 130 | ftdi->eeprom->cbus_function[0]= CBUS_BB_RD; |
| 131 | ftdi->eeprom->cbus_function[1]= CBUS_CLK48; |
| 132 | ftdi->eeprom->cbus_function[2]= CBUS_IOMODE; |
| 133 | ftdi->eeprom->cbus_function[3]= CBUS_BB; |
| 134 | ftdi->eeprom->cbus_function[4]= CBUS_CLK6; |
| 135 | f=(ftdi_eeprom_build(ftdi, buf)); |
| 136 | if (f < 0) |
| 137 | { |
| 138 | fprintf(stderr, "ftdi_eeprom_build: %d (%s)\n", |
| 139 | f, ftdi_get_error_string(ftdi)); |
| 140 | exit(-1); |
| 141 | } |
| 142 | } |
| 143 | else |
| 144 | { |
| 145 | f = ftdi_read_eeprom(ftdi, buf); |
| 146 | if (f < 0) |
| 147 | { |
| 148 | fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n", |
| 149 | f, ftdi_get_error_string(ftdi)); |
| 150 | exit(-1); |
| 151 | } |
| 152 | } |
| 153 | fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, ftdi->eeprom->size); |
| 154 | for(i=0; i < ftdi->eeprom->size; i += 16) |
| 155 | { |
| 156 | fprintf(stdout,"0x%03x:", i); |
| 157 | |
| 158 | for (j = 0; j< 8; j++) |
| 159 | fprintf(stdout," %02x", buf[i+j]); |
| 160 | fprintf(stdout," "); |
| 161 | for (; j< 16; j++) |
| 162 | fprintf(stdout," %02x", buf[i+j]); |
| 163 | fprintf(stdout," "); |
| 164 | for (j = 0; j< 8; j++) |
| 165 | fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.'); |
| 166 | fprintf(stdout," "); |
| 167 | for (; j< 16; j++) |
| 168 | fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.'); |
| 169 | fprintf(stdout,"\n"); |
| 170 | } |
| 171 | |
| 172 | f = ftdi_eeprom_decode(ftdi,buf, size, 1); |
| 173 | { |
| 174 | fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n", |
| 175 | f, ftdi_get_error_string(ftdi)); |
| 176 | exit(-1); |
| 177 | } |
| 178 | |
| 179 | |
| 180 | ftdi_usb_close(ftdi); |
| 181 | ftdi_free(ftdi); |
| 182 | } |