X-Git-Url: http://developer.intra2net.com/git/?p=libftdi;a=blobdiff_plain;f=ftdi_eeprom%2Fmain.c;h=72c1fa7a877f426ca604e6d5d892035a7a768810;hp=32d7119b23d1eeecf84fe0c7c9951753424a4b71;hb=5b110dec90393f6951624fe9a9e58c9ae9e43127;hpb=bc7a46d1c11abacb94dc68067314d1a6d86285bb

diff --git a/ftdi_eeprom/main.c b/ftdi_eeprom/main.c
index 32d7119..72c1fa7 100644
--- a/ftdi_eeprom/main.c
+++ b/ftdi_eeprom/main.c
@@ -4,6 +4,7 @@
     begin                : Mon Apr  7 12:05:22 CEST 2003
     copyright            : (C) 2003-2014 by Intra2net AG and the libftdi developers
     email                : opensource@intra2net.com
+    SPDX-License-Identifier: GPL-2.0-only
  ***************************************************************************/
 
 /***************************************************************************
@@ -36,6 +37,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
+#include <sys/stat.h>
 
 #include <confuse.h>
 #include <libusb.h>
@@ -64,6 +66,27 @@ static int parse_cbus(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *resul
     return -1;
 }
 
+static int parse_group0_drive(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
+{
+    static const char* options[] =
+    {
+        "4MA", "8MA", "12MA", "16MA"
+    };
+
+    int i;
+    for (i=0; i<sizeof(options)/sizeof(*options); i++)
+    {
+        if (!(strcasecmp(options[i], value)))
+        {
+            *(int *)result = i;
+            return 0;
+        }
+    }
+
+    cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
+    return -1;
+}
+
 static int parse_cbush(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
 {
     static const char* options[] =
@@ -235,6 +258,7 @@ int main(int argc, char *argv[])
         CFG_INT_CB("cbusx1", -1, 0, parse_cbusx),
         CFG_INT_CB("cbusx2", -1, 0, parse_cbusx),
         CFG_INT_CB("cbusx3", -1, 0, parse_cbusx),
+        CFG_INT_CB("group0_drive", -1, 0, parse_group0_drive),
         CFG_BOOL("invert_txd", cfg_false, 0),
         CFG_BOOL("invert_rxd", cfg_false, 0),
         CFG_BOOL("invert_rts", cfg_false, 0),
@@ -254,6 +278,8 @@ int main(int argc, char *argv[])
         CFG_BOOL("chc_rs485", cfg_false, 0),
         CFG_BOOL("chd_rs485", cfg_false, 0),
         CFG_FUNC("include", &cfg_include),
+        CFG_INT("user_data_addr", 0x18, 0),
+        CFG_STR("user_data_file", "", 0),
         CFG_END()
     };
     cfg_t *cfg;
@@ -269,6 +295,8 @@ int main(int argc, char *argv[])
     } command = 0;
     const char *cfg_filename = NULL;
     const char *device_description = NULL;
+    const char *user_data_file = NULL;
+    char *user_data_buffer = NULL;
 
     const int max_eeprom_size = 256;
     int my_eeprom_size = 0;
@@ -474,6 +502,8 @@ int main(int argc, char *argv[])
             eeprom_set_value(ftdi, CBUS_FUNCTION_8, cfg_getint(cfg, "cbush8"));
         if (cfg_getint(cfg, "cbush9") != -1)
             eeprom_set_value(ftdi, CBUS_FUNCTION_9, cfg_getint(cfg, "cbush9"));
+        if (cfg_getint(cfg, "group0_drive") != -1)
+            eeprom_set_value(ftdi, GROUP0_DRIVE, cfg_getint(cfg, "group0_drive"));
     }
     else if (ftdi->type == TYPE_230X)
     {
@@ -517,6 +547,51 @@ int main(int argc, char *argv[])
     eeprom_set_value(ftdi, CHANNEL_C_RS485, cfg_getbool(cfg, "chc_rs485"));
     eeprom_set_value(ftdi, CHANNEL_D_RS485, cfg_getbool(cfg, "chd_rs485"));
 
+    /* Arbitrary user data */
+    eeprom_set_value(ftdi, USER_DATA_ADDR, cfg_getint(cfg, "user_data_addr"));
+    user_data_file = cfg_getstr(cfg, "user_data_file");
+    if (user_data_file && strlen(user_data_file) > 0)
+    {
+        int data_size;
+        struct stat st;
+
+        printf("User data file: %s\n", user_data_file);
+        /* Allocate a buffer for the user data */
+        user_data_buffer = (char *)malloc(max_eeprom_size);
+        if (user_data_buffer == NULL)
+        {
+            fprintf(stderr, "Malloc failed, aborting\n");
+            goto cleanup;
+        }
+
+        if (stat(user_data_file, &st))
+        {
+            printf ("Can't stat user data file %s.\n", user_data_file);
+            exit (-1);
+        }
+        if (st.st_size > max_eeprom_size)
+            printf("Warning: %s is too big, only reading %d bytes\n",
+                   user_data_file, max_eeprom_size);
+        /* Read the user data file, no more than max_eeprom_size bytes */
+        FILE *fp = fopen(user_data_file, "rb");
+        if (fp == NULL)
+        {
+            printf ("Can't open user data file %s.\n", user_data_file);
+            exit (-1);
+        }
+        data_size = fread(user_data_buffer, 1, max_eeprom_size, fp);
+        fclose(fp);
+        if (data_size < 1)
+        {
+            printf ("Can't read user data file %s.\n", user_data_file);
+            exit (-1);
+        }
+        printf("User data size: %d\n", data_size);
+
+        ftdi_set_eeprom_user_data(ftdi, user_data_buffer, data_size);
+    }
+
+
     if (command == COMMAND_ERASE)
     {
         printf("FTDI erase eeprom: %d\n", ftdi_erase_eeprom(ftdi));
@@ -527,7 +602,7 @@ int main(int argc, char *argv[])
 
     if (size_check == -1)
     {
-        printf ("Sorry, the eeprom can only contain 128 bytes.\n");
+        printf ("Sorry, the eeprom can only contain %d bytes.\n", my_eeprom_size);
         goto cleanup;
     }
     else if (size_check < 0)
@@ -561,7 +636,15 @@ int main(int argc, char *argv[])
                     exit (-1);
                 }
 
+                printf("Flashing raw eeprom from file %s (%d bytes)\n",
+                       filename, my_eeprom_size);
+
                 ftdi_set_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
+            } else
+            {
+                printf ("ERROR: flash_raw mode enabled, but no eeprom filename "
+                        "given in config file.\n");
+                exit (-1);
             }
         }
         printf ("FTDI write eeprom: %d\n", ftdi_write_eeprom(ftdi));
@@ -591,6 +674,8 @@ int main(int argc, char *argv[])
 cleanup:
     if (eeprom_buf)
         free(eeprom_buf);
+    if (user_data_buffer)
+        free(user_data_buffer);
     if (command > 0)
     {
         printf("FTDI close: %d\n", ftdi_usb_close(ftdi));