New flash tool, needs to be ported to Windows.

+ [f]ast is gone, current mode will be autodetected
+ uses hands-free firmware update if supported by the bootrom (to be committed)
+ uses new bootrom safety features against accidental misflashes (to be committed)
+ supports S19 files with base address 0x0 or base address 0x100000
+ supports old bootroms which expect 0x0 and new bootroms which expect 0x100000 (to be committed)
+ new argument style: first argument is comma-separated (no spaces!) list of partition names, remaining arguments are file names
  os and fpga may be abbreviated, bootrom must be given in full
  Examples:   ./flasher os ../armsrc/obj/osimage.s19
              ./flasher bootrom,o,f ../bootrom/obj/bootrom.s19 ../armsrc/obj/osimage.s19 ../armsrc/obj/fpgaimage.s19

include/usb_cmd.h

@@ -25,6 +25,7 @@ typedef struct {
 #define CMD_FINISH_WRITE															0x0003
 #define CMD_HARDWARE_RESET														0x0004
 #define CMD_START_FLASH																0x0005
+#define CMD_NACK																				0x00fe
 #define CMD_ACK																				0x00ff
 
 // For general mucking around
@@ -75,4 +76,14 @@ typedef struct {
 // For direct FPGA control
 #define CMD_FPGA_MAJOR_MODE_OFF												0x0500
 
+// CMD_DEVICE_INFO response packet has flags in ext1, flag definitions:
+#define DEVICE_INFO_FLAG_BOOTROM_PRESENT         (1<<0) /* Whether a bootloader that understands the common_area is present */ 
+#define DEVICE_INFO_FLAG_OSIMAGE_PRESENT         (1<<1) /* Whether a osimage that understands the common_area is present */
+#define DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM    (1<<2) /* Set if the bootloader is currently executing */
+#define DEVICE_INFO_FLAG_CURRENT_MODE_OS         (1<<3) /* Set if the OS is currently executing */
+#define DEVICE_INFO_FLAG_UNDERSTANDS_START_FLASH (1<<4) /* Set if this device understands the extend start flash command */
+
+// CMD_START_FLASH may have three arguments: start of area to flash, end of area to flash, optional magic defined below
+#define START_FLASH_MAGIC 0x54494f44 /* The bootrom will not allow to overwrite itself unless this magic is given as third parameter */
+
 #endif