X-Git-Url: http://developer.intra2net.com/git/?p=libftdi;a=blobdiff_plain;f=examples%2Feeprom.c;h=247589a2b4caefbae41501634485cf5e79d0f8a5;hp=360c2a73e67b29406d64a5ad61476756a8ac3b6c;hb=1b1bf7e481bc29ffac3b4c6a6da9eeff36beb1d0;hpb=74e8e79d4e311001d0f890cdf0219d84b58bb70a

diff --git a/examples/eeprom.c b/examples/eeprom.c
index 360c2a7..247589a 100644
--- a/examples/eeprom.c
+++ b/examples/eeprom.c
@@ -11,158 +11,289 @@
 #include <getopt.h>
 #include <ftdi.h>
 
+int read_decode_eeprom(struct ftdi_context *ftdi)
+{
+    int i, j, f;
+    int value;
+    int size;
+    unsigned char buf[256];
+
+    f = ftdi_read_eeprom(ftdi);
+    if (f < 0)
+    {
+        fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n",
+                f, ftdi_get_error_string(ftdi));
+        return -1;
+    }
+
+
+    ftdi_get_eeprom_value(ftdi, CHIP_SIZE, & value);
+    if (value <0)
+    {
+        fprintf(stderr, "No EEPROM found or EEPROM empty\n");
+        fprintf(stderr, "On empty EEPROM, use -w option to write default values\n");
+        return -1;
+    }
+    fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, value);
+    if (ftdi->type == TYPE_R)
+        size = 0xa0;
+    else
+        size = value;
+    ftdi_get_eeprom_buf(ftdi, buf, size);
+    for (i=0; i < size; i += 16)
+    {
+        fprintf(stdout,"0x%03x:", i);
+
+        for (j = 0; j< 8; j++)
+            fprintf(stdout," %02x", buf[i+j]);
+        fprintf(stdout," ");
+        for (; j< 16; j++)
+            fprintf(stdout," %02x", buf[i+j]);
+        fprintf(stdout," ");
+        for (j = 0; j< 8; j++)
+            fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
+        fprintf(stdout," ");
+        for (; j< 16; j++)
+            fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
+        fprintf(stdout,"\n");
+    }
+
+    f = ftdi_eeprom_decode(ftdi, 1);
+    if (f < 0)
+    {
+        fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n",
+                f, ftdi_get_error_string(ftdi));
+        return -1;
+    }
+    return 0;
+}
+
 int main(int argc, char **argv)
 {
     struct ftdi_context *ftdi;
-    unsigned char *buf;
-    int f, i, j;
-    int vid = 0x0403;
-    int pid = 0x6010;
+    int f, i;
+    int vid = 0;
+    int pid = 0;
     char const *desc    = 0;
     char const *serial  = 0;
     int erase = 0;
     int use_defaults = 0;
     int large_chip = 0;
-    int size;
+    int do_write = 0;
+    int retval = 0;
+    int value;
 
     if ((ftdi = ftdi_new()) == 0)
     {
-       fprintf(stderr, "Failed to allocate ftdi structure :%s \n", 
-		   ftdi_get_error_string(ftdi));
+        fprintf(stderr, "Failed to allocate ftdi structure :%s \n",
+                ftdi_get_error_string(ftdi));
         return EXIT_FAILURE;
     }
 
-    while ((i = getopt(argc, argv, "d::ev:p:P:S:")) != -1)
+    while ((i = getopt(argc, argv, "d::ev:p:l:P:S:w")) != -1)
     {
         switch (i)
         {
-        case 'd':
-            use_defaults = 1;
-            if(optarg)
-                large_chip = 0x66; 
-            break;
-        case 'e':
-            erase = 1;
-            break;
-        case 'v':
-		vid = strtoul(optarg, NULL, 0);
-		break;
-	case 'p':
-		pid = strtoul(optarg, NULL, 0);
-		break;
-	case 'P':
+            case 'd':
+                use_defaults = 1;
+                if (optarg)
+                    large_chip = 0x66;
+                break;
+            case 'e':
+                erase = 1;
+                break;
+            case 'v':
+                vid = strtoul(optarg, NULL, 0);
+                break;
+            case 'p':
+                pid = strtoul(optarg, NULL, 0);
+                break;
+            case 'P':
                 desc = optarg;
-		break;
-	case 'S':
-		serial = optarg;
-		break;
-	default:
-		fprintf(stderr, "usage: %s [options]\n", *argv);
-		fprintf(stderr, "\t-d[num] Work with default valuesfor 128 Byte "
-                        "EEPROM or for 256 Byte EEPROm if some [num] is given\n");
-		fprintf(stderr, "\t-e erase\n");
-		fprintf(stderr, "\t-v verbose decoding\n");
-		fprintf(stderr, "\t-p <number> Search for device with PID == number\n");
-		fprintf(stderr, "\t-v <number> Search for device with VID == number\n");
-		fprintf(stderr, "\t-P <string? Search for device with given "
+                break;
+            case 'S':
+                serial = optarg;
+                break;
+            case 'w':
+                do_write  = 1;
+                break;
+            default:
+                fprintf(stderr, "usage: %s [options]\n", *argv);
+                fprintf(stderr, "\t-d[num] Work with default valuesfor 128 Byte "
+                        "EEPROM or for 256 Byte EEPROM if some [num] is given\n");
+                fprintf(stderr, "\t-w write\n");
+                fprintf(stderr, "\t-e erase\n");
+                fprintf(stderr, "\t-v verbose decoding\n");
+                fprintf(stderr, "\t-p <number> Search for device with PID == number\n");
+                fprintf(stderr, "\t-v <number> Search for device with VID == number\n");
+                fprintf(stderr, "\t-P <string? Search for device with given "
                         "product description\n");
-		fprintf(stderr, "\t-S <string? Search for device with given "
+                fprintf(stderr, "\t-S <string? Search for device with given "
                         "serial number\n");
-		exit(-1);
+                retval = -1;
+                goto done;
         }
     }
 
     // Select first interface
     ftdi_set_interface(ftdi, INTERFACE_ANY);
 
-    // Open device
-    f = ftdi_usb_open_desc(ftdi, vid, pid, desc, serial);
-    if (f < 0)
+    if (!vid && !pid && desc == NULL && serial == NULL)
     {
-        fprintf(stderr, "Device VID 0x%04x PID 0x%04x", vid, pid);
-        if(desc)
-            fprintf(stderr, " Desc %s", desc);
-        if(serial)
-            fprintf(stderr, " Serial %s", serial);
-        fprintf(stderr, "\n");
-        fprintf(stderr, "unable to open ftdi device: %d (%s)\n", 
-		f, ftdi_get_error_string(ftdi));
-
-        exit(-1);
+        struct ftdi_device_list *devlist, *curdev;
+        int res;
+        if ((res = ftdi_usb_find_all(ftdi, &devlist, 0, 0)) < 0)
+        {
+            fprintf(stderr, "No FTDI with default VID/PID found\n");
+            retval =  EXIT_FAILURE;
+            goto do_deinit;
+        }
+        if (res > 1)
+        {
+            int i = 1;
+            fprintf(stderr, "%d FTDI devices found: Only Readout on EEPROM done. ",res);
+            fprintf(stderr, "Use VID/PID/desc/serial to select device\n");
+            for (curdev = devlist; curdev != NULL; curdev= curdev->next, i++)
+            {
+                f = ftdi_usb_open_dev(ftdi,  curdev->dev);
+                if (f<0)
+                {
+                    fprintf(stderr, "Unable to open device %d: (%s)",
+                            i, ftdi_get_error_string(ftdi));
+                    continue;
+                }
+                fprintf(stderr, "Decoded values of device %d:\n", i);
+                read_decode_eeprom(ftdi);
+                ftdi_usb_close(ftdi);
+            }
+            ftdi_list_free(&devlist);
+            retval = EXIT_SUCCESS;
+            goto do_deinit;
+        }
+        else if (res == 1)
+        {
+            f = ftdi_usb_open_dev(ftdi,  devlist[0].dev);
+            if (f<0)
+            {
+                fprintf(stderr, "Unable to open device %d: (%s)",
+                        i, ftdi_get_error_string(ftdi));
+            }
+        }
+        else
+        {
+            fprintf(stderr, "No devices found\n");
+            f = 0;
+        }
+        ftdi_list_free(&devlist);
+    }
+    else
+    {
+        // Open device
+        f = ftdi_usb_open_desc(ftdi, vid, pid, desc, serial);
+        if (f < 0)
+        {
+            fprintf(stderr, "Device VID 0x%04x PID 0x%04x", vid, pid);
+            if (desc)
+                fprintf(stderr, " Desc %s", desc);
+            if (serial)
+                fprintf(stderr, " Serial %s", serial);
+            fprintf(stderr, "\n");
+            fprintf(stderr, "unable to open ftdi device: %d (%s)\n",
+                    f, ftdi_get_error_string(ftdi));
+            
+            retval = -1;
+            goto done;
+        }
     }
-
     if (erase)
     {
-        f = ftdi_erase_eeprom(ftdi);
+        f = ftdi_erase_eeprom(ftdi); /* needed to determine EEPROM chip type */
         if (f < 0)
         {
-            fprintf(stderr, "Erase failed: %s", 
+            fprintf(stderr, "Erase failed: %s",
                     ftdi_get_error_string(ftdi));
-            return -2;
+            retval =  -2;
+            goto done;
         }
-        if (ftdi->eeprom->chip == -1)
+        if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0)
+        {
+            fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n",
+                    f, ftdi_get_error_string(ftdi));
+        }
+        if (value == -1)
             fprintf(stderr, "No EEPROM\n");
-        else if (ftdi->eeprom->chip == 0)
+        else if (value == 0)
             fprintf(stderr, "Internal EEPROM\n");
         else
-            fprintf(stderr, "Found 93x%02x\n",ftdi->eeprom->chip);
-        return 0;
-    }        
+            fprintf(stderr, "Found 93x%02x\n", value);
+        retval = 0;
+        goto done;
+    }
 
-    if(use_defaults)
+    if (use_defaults)
     {
-        ftdi_eeprom_initdefaults(ftdi, "IKDA", "CPS-CONN", "0001");
-        ftdi->eeprom->chip= (large_chip)?0x66:0;
+        ftdi_eeprom_initdefaults(ftdi, NULL, NULL, NULL);
+        if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0)
+        {
+            fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
+                    f, ftdi_get_error_string(ftdi));
+        }
+        if (large_chip)
+            if (ftdi_set_eeprom_value(ftdi, CHIP_TYPE, 0x66) <0)
+            {
+                fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
+                        f, ftdi_get_error_string(ftdi));
+            }
         f=(ftdi_eeprom_build(ftdi));
         if (f < 0)
         {
-            fprintf(stderr, "ftdi_eeprom_build: %d (%s)\n", 
+            fprintf(stderr, "ftdi_eeprom_build: %d (%s)\n",
                     f, ftdi_get_error_string(ftdi));
-            exit(-1);
+            retval = -1;
+            goto done;
         }
     }
-    else
+    else if (do_write)
     {
-        f = ftdi_read_eeprom(ftdi);
+        ftdi_eeprom_initdefaults(ftdi, NULL, NULL, NULL);
+        f = ftdi_erase_eeprom(ftdi);
+        if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0)
+        {
+            fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
+                    f, ftdi_get_error_string(ftdi));
+        }
+        f = ftdi_erase_eeprom(ftdi);/* needed to determine EEPROM chip type */
+        if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0)
+        {
+            fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n",
+                    f, ftdi_get_error_string(ftdi));
+        }
+        if (value == -1)
+            fprintf(stderr, "No EEPROM\n");
+        else if (value == 0)
+            fprintf(stderr, "Internal EEPROM\n");
+        else
+            fprintf(stderr, "Found 93x%02x\n", value);
+        f=(ftdi_eeprom_build(ftdi));
         if (f < 0)
         {
-            fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n", 
+            fprintf(stderr, "Erase failed: %s",
+                    ftdi_get_error_string(ftdi));
+            retval = -2;
+            goto done;
+        }
+        f = ftdi_write_eeprom(ftdi);
+        {
+            fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n",
                     f, ftdi_get_error_string(ftdi));
-            exit(-1);
+            retval = 1;
+            goto done;
         }
     }
-    fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, ftdi->eeprom->size);
-    buf = ftdi->eeprom->buf;
-    if (ftdi->type == TYPE_R)
-        size = 0xa0;
-    else
-        size = ftdi->eeprom->size;
-    for(i=0; i < size; i += 16)
-    {
-	fprintf(stdout,"0x%03x:", i);
-	
-	for (j = 0; j< 8; j++)
-	    fprintf(stdout," %02x", buf[i+j]);
-	fprintf(stdout," ");
-	for (; j< 16; j++)
-	    fprintf(stdout," %02x", buf[i+j]);
-	fprintf(stdout," ");
-	for (j = 0; j< 8; j++)
-	    fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
-	fprintf(stdout," ");
-	for (; j< 16; j++)
-	    fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
-	fprintf(stdout,"\n");
-    }
-
-    f = ftdi_eeprom_decode(ftdi, 1);
-    {
-        fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n", 
-		f, ftdi_get_error_string(ftdi));
-        exit(-1);
-    }
-	
-
+    retval = read_decode_eeprom(ftdi);
+done:
     ftdi_usb_close(ftdi);
+do_deinit:
     ftdi_free(ftdi);
+    return retval;
 }