moxa-smartio

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	  The instructions to modify driver source code are as
	  below.
	  a. # cd /moxa/mxser/driver
	     # vi mxser.c
	  b. Find the array mxserBoardCAP[] as below.

	     static int mxserBoardCAP[]
	     = {0x00, 0x00, 0x00, 0x00};

	  c. Change the address within this array using vi. For
	     example, to driver 2 ISA boards with CAP address
	     0x280 and 0x180 as 1st and 2nd board. Just to change
	     the source code as follows.

	     static int mxserBoardCAP[]
	     = {0x280, 0x180, 0x00, 0x00};

       3. Modify tty_io.c
	  # cd /usr/src/linux/drivers/char/
	  # vi tty_io.c
	    Find pty_init(), insert "mxser_init()" as

	    pty_init();
	    mxser_init();

       4. Modify tty.h
	  # cd /usr/src/linux/include/linux
	  # vi tty.h
	    Find extern int tty_init(void), insert "mxser_init()" as

	    extern int tty_init(void);
	    extern int mxser_init(void);
     
       5. Modify Makefile
	  # cd /usr/src/linux/drivers/char
	  # vi Makefile
	    Find L_OBJS := tty_io.o ...... random.o, add
	    "mxser.o" at last of this line as
	    L_OBJS := tty_io.o ....... mxser.o

       6. Rebuild kernel
	  The following are for Linux kernel rebuilding,for your reference only.
	  For appropriate details, please refer to the Linux document.

	  If 'lilo' utility is installed, please use 'make zlilo' to rebuild
	  kernel. If 'lilo' is not installed, please follow the following steps.

	   a. cd /usr/src/linux
	   b. make clean			     /* take a few minutes */
	   c. make dep				     /* take a few minutes */
	   d. make bzImage		   /* take probably 10-20 minutes */
	   e. Backup original boot kernel.		  /* optional step */
	   f. cp /usr/src/linux/arch/i386/boot/bzImage /boot/vmlinuz
	   g. Please make sure the boot kernel (vmlinuz) is in the
	      correct position. If you use 'lilo' utility, you should
	      check /etc/lilo.conf 'image' item specified the path
	      which is the 'vmlinuz' path, or you will load wrong
	      (or old) boot kernel image (vmlinuz).
	   h. chmod 400 /vmlinuz
	   i. lilo
	   j. rdev -R /vmlinuz 1
	   k. sync

	  Note that if the result of "make zImage" is ERROR, then you have to
	  go back to Linux configuration Setup. Type "make config" in directory
	  /usr/src/linux or "setup".

	  Since system include file, /usr/src/linux/include/linux/interrupt.h,
	  is modified each time the MOXA driver is installed, kernel rebuilding
	  is inevitable. And it takes about 10 to 20 minutes depends on the
	  machine.

       7. Make utility
	  # cd /moxa/mxser/utility
	  # make install
       
       8. Make special file
          # cd /moxa/mxser/driver
          # ./msmknod

       9. Reboot

   3.5 Custom configuration
       Although this driver already provides you default configuration, you
       still can change the device name and major number.The instruction to
       change these parameters are shown as below.

       Change Device name
       ------------------
       If you'd like to use other device names instead of default naming
       convention, all you have to do is to modify the internal code
       within the shell script "msmknod". First, you have to open "msmknod"
       by vi. Locate each line contains "ttyM" and "cum" and change them
       to the device name you desired. "msmknod" creates the device names
       you need next time executed.

       Change Major number
       -------------------
       If major number 30 and 35 had been occupied, you may have to select
       2 free major numbers for this driver. There are 3 steps to change
       major numbers.

       1. Find free major numbers
	  In /proc/devices, you may find all the major numbers occupied
	  in the system. Please select 2 major numbers that are available.
	  e.g. 40, 45.
       2. Create special files
	  Run /moxa/mxser/driver/msmknod to create special files with
	  specified major numbers.
       3. Modify driver with new major number
	  Run vi to open /moxa/mxser/driver/mxser.c. Locate the line
	  contains "MXSERMAJOR". Change the content as below.
	  #define	  MXSERMAJOR		  40
	  #define	  MXSERCUMAJOR		  45
       4. Run # make install in /moxa/mxser/driver.

   3.6 Verify driver installation
       You may refer to /var/log/messages to check the latest status
       log reported by this driver whenever it's activated.
-----------------------------------------------------------------------------
4. Utilities
   There are 3 utilities contained in this driver. They are msdiag, msmon and
   msterm. These 3 utilities are released in form of source code. They should
   be compiled into executable file and copied into /usr/bin.

   msdiag - Diagnostic
   --------------------
   This utility provides the function to detect what Moxa Smartio multiport
   board exists in the system.

   msmon - Port Monitoring
   -----------------------
   This utility gives the user a quick view about all the MOXA ports'
   activities. One can easily learn each port's total received/transmitted
   (Rx/Tx) character count since the time when the monitoring is started.
   Rx/Tx throughputs per second are also reported in interval basis (e.g.
   the last 5 seconds) and in average basis (since the time the monitoring
   is started). You can reset all ports' count by <HOME> key. <+> <->
   (plus/minus) keys to change the displaying time interval. Press <ENTER>
   on the port, that cursor stay, to view the port's communication
   parameters, signal status, and input/output queue.

   msterm - Terminal Emulation
   ---------------------------
   This utility provides data sending and receiving ability of all tty ports,
   especially for MOXA ports. It is quite useful for testing simple
   application, for example, sending AT command to a modem connected to the
   port or used as a terminal for login purpose. Note that this is only a
   dumb terminal emulation without handling full screen operation.
-----------------------------------------------------------------------------
5. Setserial

   Supported Setserial parameters are listed as below.

   uart 	  set UART type(16450-->disable FIFO, 16550A-->enable FIFO)
   close_delay	  set the amount of time(in 1/100 of a second) that DTR
		  should be kept low while being closed.
   closing_wait   set the amount of time(in 1/100 of a second) that the
		  serial port should wait for data to be drained while
		  being closed, before the receiver is disable.
   spd_hi	  Use  57.6kb  when  the application requests 38.4kb.
   spd_vhi	  Use  115.2kb	when  the application requests 38.4kb.
   spd_normal	  Use  38.4kb  when  the application requests 38.4kb.

-----------------------------------------------------------------------------
6. Troubleshooting

   The boot time error messages and solutions are stated as clearly as
   possible. If all the possible solutions fail, please contact our technical
   support team to get more help.

   Error msg: More than 4 Moxa Smartio family boards found. Fifth board and
	      after are ignored.
   Solution:
   To avoid this problem, please unplug fifth and after board, because Moxa
   driver supports up to 4 boards.

   Error msg: Request_irq fail, IRQ(?) may be conflict with another device.
   Solution:
   Other PCI or ISA devices occupy the assigned IRQ. If you are not sure
   which device causes the situation,please check /proc/interrupts to find
   free IRQ and simply change another free IRQ for Moxa board.

   Error msg: Board #: C1xx Series(CAP=xxx) interrupt number invalid.
   Solution:
   Each port within the same multiport board shares the same IRQ. Please set
   one IRQ (IRQ doesn't equal to zero) for one Moxa board.

   Error msg: No interrupt vector be set for Moxa ISA board(CAP=xxx).
   Solution:
   Moxa ISA board needs an interrupt vector.Please refer to user's manual
   "Hardware Installation" chapter to set interrupt vector.

   Error msg: Couldn't install MOXA Smartio family driver!
   Solution:
   Load Moxa driver fail, the major number may conflict with other devices.
   Please refer to previous section 3.5 to change a free major number for
   Moxa driver.

   Error msg: Couldn't install MOXA Smartio family callout driver!
   Solution:
   Load Moxa callout driver fail, the callout device major number may
   conflict with other devices. Please refer to previous section 3.5 to
   change a free callout device major number for Moxa driver.
-----------------------------------------------------------------------------