From ff869bd768dcc9b86f4fc6a312b7b6e9ba883591 Mon Sep 17 00:00:00 2001
From: heck <heck@pep.foundation>
Date: Wed, 9 Aug 2023 17:18:52 +0200
Subject: [PATCH] fv-1 specific defaults

---
 src/ch341eeprom.c | 41 +++++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 22 deletions(-)

diff --git a/src/ch341eeprom.c b/src/ch341eeprom.c
index cadb522..d29f63e 100644
--- a/src/ch341eeprom.c
+++ b/src/ch341eeprom.c
@@ -1,10 +1,10 @@
 //
-//   ch341eeprom programmer version 0.1 (Beta) 
+//   ch341eeprom programmer version 0.1 (Beta)
 //
 //   Programming tool for the 24Cxx serial EEPROMs using the Winchiphead CH341A IC
 //
-//   (c) December 2011 asbokid <ballymunboy@gmail.com> 
-//     
+//   (c) December 2011 asbokid <ballymunboy@gmail.com>
+//
 //   This program is free software: you can redistribute it and/or modify
 //   it under the terms of the GNU General Public License as published by
 //   the Free Software Foundation, either version 3 of the License, or
@@ -18,7 +18,7 @@
 //   You should have received a copy of the GNU General Public License
 //   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-#include <libusb-1.0/libusb.h> 
+#include <libusb-1.0/libusb.h>
 //#include <asm/errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -32,52 +32,49 @@ FILE *debugout, *verbout;
 uint8_t *readbuf = NULL;
 
 int main(int argc, char **argv) {
-    int i, ret = 0, eepromsize = 0, bytesread = 0;
-    uint8_t debug = FALSE, verbose = FALSE;
+    int i, ret = 0, eepromsize = 4096, bytesread = 0;
+    uint8_t debug = FALSE, verbose = TRUE;
     struct libusb_device_handle *devHandle = NULL;
     char *filename = NULL, eepromname[12], operation = 0;
     FILE *fp;
 
-    static char version_msg[] =    
-        "ch341eeprom - an i2c EEPROM programming tool for the WCH CH341a IC\n" \
+    static char version_msg[] =
+        "fvflash - an i2c EEPROM programming tool for the WCH CH341a IC\n" \
         "Version " CH341TOOLVERSION  " copyright (c) 2011  asbokid <ballymunboy@gmail.com>\n\n" \
+        "modified by <heck@heck.live> for the specific use case of fv-1 programming on macos\n\n" \
         "This program comes with asbolutely no warranty; This is free software,\n" \
         "and you are welcome to redistribute it under certain conditions:\n" \
         "GNU GPL v3 License: http://www.gnu.org/licenses/gpl.html\n";
 
-    static char usage_msg[] = 
+    static char usage_msg[] =
         "Usage:\n" \
         " -h, --help             display this text\n" \
-        " -v, --verbose          verbose output\n" \
         " -d, --debug            debug output\n" \
-        " -s, --size             size of EEPROM {24c32|24c64}\n" \
+        " -s, --size             size of EEPROM {24c32|24c64} default=24c32\n" \
         " -e, --erase            erase EEPROM (fill with 0xff)\n" \
         " -w, --write <filename> write EEPROM with image from filename\n" \
         " -r, --read  <filename> read EEPROM and save image to filename\n\n" \
-        "Example:  ch341eeprom -v -s 24c64 -w bootrom.bin\n";
+        "Example:  fvflash bootrom.bin\n";
 
     static struct option longopts[] = {
         {"help",    no_argument,       0, 'h'},
-        {"verbose", no_argument,       0, 'v'},
         {"debug",   no_argument,       0, 'd'},
         {"erase",   no_argument,       0, 'e'},
         {"size",    required_argument, 0, 's'},
         {"read",    required_argument, 0, 'r'},
-        {"write",   required_argument, 0, 'w'},
         {0, 0, 0, 0}
     };
 
     while (TRUE) {
         int32_t optidx = 0;
-        int8_t c = getopt_long(argc,argv,"hvdes:w:r:", longopts, &optidx);
-        if (c == -1)
+        int8_t c = getopt_long(argc,argv,"hdes:r:", longopts, &optidx);
+        if (c == -1) {
             break;
+        }
 
         switch (c) {
             case 'h': fprintf(stdout, "%s\n%s", version_msg, usage_msg);
                       return 0;
-            case 'v': verbose = TRUE;
-                      break;
             case 'd': debug = TRUE;
                       break;
             case 's': if((eepromsize = parseEEPsize(optarg)) > 0)
@@ -99,16 +96,16 @@ int main(int argc, char **argv) {
                         goto shutdown;
                       }
                       break;
-            case 'w': if(!operation) {
+            default:
+                      if(!operation) {
                         operation = 'w';
-                        filename = (char *) malloc(strlen(optarg)+1);
+                        filename = (char *) malloc(strlen(argv[optidx])+1);
                         strcpy(filename, optarg);
                       } else {
                         fprintf(stderr, "Conflicting command line options\n");
                         goto shutdown;
-                      }  
+                      }
                       break;
-            default :  
             case '?': fprintf(stdout, "%s", version_msg);
                       fprintf(stderr, "%s", usage_msg);
                       goto shutdown;