* import of the 'set-rd-flags+cleanups' patch from Robert Schuster

adds support for setting and clearing the rd flags (no-retu-watchdog,
  serial-console and the like).

  The interface to it is a bit cryptic (construct your own hex number) but
  it works like like 'chmod'.

src/Makefile

@@ -1,4 +1,4 @@
-VERSION=0.1
+VERSION=0.2
 OBJ=main.o fiasco.o hexdump.o dump.o flash.o
 OBJ+=hash.o fpid.o query.o pieces.o utils.o
 BIN=0xFFFF

src/main.c

@@ -33,7 +33,8 @@ struct usb_dev_handle *dev = NULL;
 char  *fiasco_image = NULL;
 char  *boot_cmdline = NULL;
 char  *reverseto    = NULL;
-int    rdflags      = -1;
+int    rd_mode      = -1;
+int    rd_flags      = -1;
 int    usb_mode     = -1;
 int    root_device  = -1;
 int    verbose      = 0;
@@ -151,8 +152,9 @@ void show_usage()
 
 	printf(" -b [arg]      boots the kernel with arguments\n");
 	printf(" -e [path]     dump and extract pieces to path\n");
-	printf(" -p [[p%%]file] piece-of-firmware %% file-where-this-piece-is\n");
 	printf(" -r [0|1]      disable/enable R&D mode\n");
+	printf(" -f <flags>    set the given RD flags (see 'Flasher_tool_usage' in maemo wiki)\n");
+	printf(" -p [[p%%]file] piece-of-firmware %% file-where-this-piece-is\n");
 	printf(" -u [fiasco]   unpack target fiasco image\n");
 	printf(" -U [0|1]      disable/enable the usb host mode\n");
 	printf(" -h            show this help message\n");
@@ -183,7 +185,7 @@ int main(int argc, char **argv)
 	struct usb_device_descriptor udd;
 	int c;
 
-	while((c = getopt(argc, argv, "p:vVhRu:ib:U:r:e:ld:I:D:")) != -1) {
+	while((c = getopt(argc, argv, "p:vVhRu:ib:U:r:e:ld:I:D:f:")) != -1) {
 		switch(c) {
 		case 'd':
 			sscanf(optarg, "%04hx:%04hx", 
@@ -197,11 +199,13 @@ int main(int argc, char **argv)
 		case 'e':
 			reverseto = optarg;
 			break;
+		case 'f':
+			rd_flags = (unsigned short) strtoul(optarg, NULL, 16);
 		case 'U':
 			usb_mode = atoi(optarg);
 			break;
 		case 'r':
-			rdflags = atoi(optarg);
+			rd_mode = atoi(optarg);
 			break;
 		case 'b':
 			boot_cmdline = optarg;
@@ -246,15 +250,16 @@ int main(int argc, char **argv)
 	&&	(boot_cmdline == NULL)
 	&&	(reverseto    == NULL)
 	&&	(pcs_n        == 0)
-	&&	(rdflags      == -1)
+	&&	(rd_flags     == -1)
+	&&	(rd_mode      == -1)
 	&&	(info         == 0)
 	&&	(reboot       == 0)
-	&&      (usb_mode     == -1)
+	&&  (usb_mode     == -1)
 	&& 	(root_device  == -1))
 	{
 		printf("Usage: 0xFFFF [-hvVRi] [-e path] [-U 0|1] [-p [piece%%]file [-p ...]]\n");
 		printf("              [-b boot-args] [-I piece [-I ...]] [-u fiasco-image]\n");
-		printf("              [-D 0|1|2]\n");
+		printf("              [-D 0|1|2] [-F rd flags]\n");
 		return 1;
 	}
 
@@ -295,18 +300,16 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
-	set_rd_mode(rdflags);
-
 	/* go go go! */
 	while(get_status());
 
 	// if (info)
 	sleep(1); // take breath
-	get_root_device(); // only for flashing
-	get_rd_mode();
-	get_usb_mode();
-	
 	get_hw_revision(); // get hardware revision:
+	get_root_device(); // only for flashing
+	get_usb_mode();
+	get_rd_mode();
+	get_rd_flags();
 	
 	if (pcs_n) {
 		int c;
@@ -321,10 +324,16 @@ int main(int argc, char **argv)
 		}
 	}
 
+	if (rd_mode != -1)
+	  set_rd_mode(rd_mode);
+	  
+	if (rd_flags != -1)
+	  set_rd_flags(rd_flags);
+
 	if (root_device != -1)
 		set_root_device(root_device);
 
-	if (usb_mode!=-1)
+	if (usb_mode != -1)
 		set_usb_mode(usb_mode);
 
 	if (boot_cmdline)

src/query.c

@@ -44,6 +44,12 @@ int get_status()
  */
 int set_usb_mode(unsigned int mode)
 {
+	if (mode > 1)
+	{
+		printf("Invalid USB mode specified '%d'.\n", mode);
+		return -1;
+	}
+	
 	if (usb_control_msg(dev, CMD_WRITE, 16, mode, 2, 0, 0, 2000) == -1) {
 		fprintf(stderr, "Cannot set USB mode.\n");
 		return -1;
@@ -65,7 +71,7 @@ int get_usb_mode()
 {
 	unsigned short mode = 0;
 
-	if (usb_control_msg(dev, CMD_QUERY, 17, 0, 2, &mode, sizeof(mode), 2000) == -1) {
+	if (usb_control_msg(dev, CMD_QUERY, 17, 0, 2, (void *) &mode, sizeof(mode), 2000) == -1) {
 		fprintf(stderr, "Cannot query device.\n");
 		return -1;
 	}
@@ -203,6 +209,95 @@ int set_root_device(unsigned short root_device)
 	return 0;
 }
 
+/**
+ * Set flags:
+ * request type: CMD_WRITE
+ * request     : 16
+ * value       : flags to set, see below
+ * index       : 3
+ * 
+ * Clear flags:
+ * request type: CMD_WRITE
+ * request     : 16
+ * value       : flags to clear, see below
+ * index       : 4
+ 
+ * Flags are composed of:
+ * 0x02 - disable OMAP watchdog (possibly)
+ * 0x04 - disable RETU watchdog (possibly)
+ * 0x08 - disable lifeguard reset
+ * 0x10 - enable serial console
+ * 0x20 - disable USB timeout
+ * 
+ * The function encapsule the NOLO API in a way that it works like
+ * a chmod 707. The bits that are not set will be cleared after the
+ * call. This is done by issuing a 'clear flags' command with all the
+ * non set bits.  
+ * 
+ */
+int set_rd_flags(unsigned short flags)
+{
+	unsigned short reverse_flags = 0;
+	
+	if (flags & ~(0x02 | 0x04 | 0x08 | 0x10 | 0x20)) {
+		printf("Invalid rd flags specified '%x'.\n", flags);
+		return -1;
+	}
+	
+	if (!(flags & 0x02))
+	  reverse_flags |= 0x02;
+
+	if (!(flags & 0x04))
+	  reverse_flags |= 0x04;
+
+	if (!(flags & 0x08))
+	  reverse_flags |= 0x08;
+
+	if (!(flags & 0x10))
+	  reverse_flags |= 0x10;
+
+	if (!(flags & 0x20))
+	  reverse_flags |= 0x20;
+	  
+	if (usb_control_msg(dev, CMD_WRITE, 16, flags, 3, 0, 0, 2000) == -1) {
+		fprintf(stderr, "Cannot set rd flags\n");
+		return -1;
+	}
+
+	if (usb_control_msg(dev, CMD_WRITE, 16, reverse_flags, 4, 0, 0, 2000) == -1) {
+		fprintf(stderr, "Cannot set rd flags\n");
+		return -1;
+	}
+
+	printf("Set rd flags successfully!\n");
+	printf("disable OMAP watchdog  : %s\n", (flags & 0x02) ? "set" : "not set"); 
+	printf("disable RETU watchdog  : %s\n", (flags & 0x04) ? "set" : "not set"); 
+	printf("disable lifeguard reset: %s\n", (flags & 0x08) ? "set" : "not set"); 
+	printf("enable serial console  : %s\n", (flags & 0x10) ? "set" : "not set"); 
+	printf("disable USB timeout    : %s\n", (flags & 0x20) ? "set" : "not set"); 
+
+	return 0;
+}
+
+int get_rd_flags()
+{
+	unsigned short flags = 0;
+	
+	if (usb_control_msg(dev, CMD_QUERY, 17, 0, 3, (void *) &flags, sizeof(flags), 2000) == -1) {
+		fprintf(stderr, "Cannot get rd flags\n");
+		return -1;
+	}
+	
+	printf("Current rd flag setting:\n");
+	printf("disable OMAP watchdog  : %s\n", (flags & 0x02) ? "set" : "not set"); 
+	printf("disable RETU watchdog  : %s\n", (flags & 0x04) ? "set" : "not set"); 
+	printf("disable lifeguard reset: %s\n", (flags & 0x08) ? "set" : "not set"); 
+	printf("enable serial console  : %s\n", (flags & 0x10) ? "set" : "not set"); 
+	printf("disable USB timeout    : %s\n", (flags & 0x20) ? "set" : "not set");
+	
+	return 0; 
+}
+
 int get_nolo_version()
 {
 	unsigned int version; // ensure uint is at least 32 bits

src/query.h

@@ -0,0 +1,28 @@
+#ifndef QUERY_H_
+#define QUERY_H_
+
+int boot_board(char *cmdline);
+
+int reboot_board();
+
+int get_status();
+
+int get_usb_mode();
+int set_usb_mode(unsigned int);
+
+int get_rd_mode();
+int set_rd_mode(unsigned short mode);
+
+int get_rd_flags();
+int set_rd_flags(unsigned short flags);
+
+int get_hw_revision();
+
+int get_root_device();
+int set_root_device(unsigned short);
+
+int get_nolo_version();
+
+int get_sw_version();
+
+#endif /*QUERY_H_*/