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List:       freebsd-mobile
Subject:    Thinkpad T23 Setup (part 1)
From:       "Michael W. Collette" <metrol () metrol ! net>
Date:       2002-05-14 10:00:36
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Have a bit too much here to cover in a single E-Mail, so I'm breaking this up 
in parts.  Mostly I want to get around to addressing the proper X config, but 
there are some preliminary issues that need addressed prior to that.

First off, if you're planning on using either KDE or Gnome you really need to 
have sound functioning before getting into compiling either one.  I didn't 
try to compile either prior to sound working, but as I recall from a long ago 
battle with these things you'd end up having to recompile after getting your 
sound configured.  Not sure exactly how long Gnome took, but KDE was well 
over 4 hours of compiling here.

Before you get into doing the sound, you'll want to make sure that APM support 
is up and running.  I actually did this last, which I found out the hard way 
was a serious mistake.  Without APM going, if you suspend the laptop then 
resume operations, an attempt to access sound will hard lock the system.  
Don't bother asking me why, I'm just a silly user type out here.  With APM, 
you can suspend while in the middle of playing sound without a problem.

Last note before I seriously get into this.  The configuration for the sound 
device is a temporary hack.  I simply haven't had the time to test out a more 
comprehensive solution posted to this list.  I can say with reasonable 
certainty that this have been very stable for me, and it even sounds good!  
Just note that this information is pretty much obsolete as I write this.

Before FreeBSD:
------------------------------------------------------------------------
If you still have that Windows thing on your system, I would recommend getting 
the 2 bios updates that IBM has on their web site.  I was going to provide a 
link here, but IBM's site is slower than heck at the moment.  There's a bios 
upgrade and a device upgrade patch that you'll be looking for in there.  I 
don't know if they are needed to proceed, but they sure didn't hurt anything 
here.  I loaded both of these just prior to completely deleting the Windows 
partition.  That felt gooood.

What to do:
------------------------------------------------------------------------
Going to need to do some source code tweaking to 3 files, and get the kernel 
config all proper to get this going.  This should address sound, apm, and 
keyboard issues.

Thanks to Troy for pointing me in the right direction of the pr's that cover 
the sound issues...

http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/36716
http://www.freebsd.org/cgi/query-pr.cgi?pr=i386/36972

If you edit the files described in these pr's you stand a chance of having 
your system actually be able recognize the sound card.  I personally just 
edited these with ee.

Then you'll need to get in and fix up ac97.c with this bit of a hack to change 
the delay timing.  Where the above tweaks allow FreeBSD to see the card, this 
tweak is needed to actually get some noise out.

/usr/src/sys/dev/sound/pcm/ac97.c 
   replace:
     DELAY (10000);
   with:
     DELAY (40000);

You'll find this twice in that file.  With those quickies outta the way you 
should be ready to tweak on the kernel config.

Here's what all I've got for a kernel configuration.  There's a couple of 
things in here that aren't exactly obvious.  I'll talk about them briefly 
below.

Kernel config:
------------------------------------------------------------------------
#
# MetKernel -- Metrol kernel configuration file for FreeBSD/i386
#   for use with IBM Thinkpad T23 Type 2647
#
# $FreeBSD: src/sys/i386/conf/MetKernel   2002/05/13

machine		i386
cpu		I686_CPU
ident		MetKernel
maxusers	128

options 	MATH_EMULATE		#Support for x87 emulation
options 	INET			#InterNETworking
# options 	INET6			#IPv6 communications protocols
options 	FFS			#Berkeley Fast Filesystem
options 	FFS_ROOT		#FFS usable as root device [keep this!]
options 	SOFTUPDATES		#Enable FFS soft updates support
options 	UFS_DIRHASH		#Improve performance on big directories
# options 	MFS			#Memory Filesystem
options 	MD_ROOT			#MD is a potential root device
options 	NFS			#Network Filesystem
options 	NFS_ROOT		#NFS usable as root device, NFS required
options 	MSDOSFS			#MSDOS Filesystem
options 	CD9660			#ISO 9660 Filesystem
options 	CD9660_ROOT		#CD-ROM usable as root, CD9660 required
options 	PROCFS			#Process filesystem
options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
# options 	SCSI_DELAY=15000	#Delay (in ms) before probing SCSI
options 	UCONSOLE		#Allow users to grab the console
options 	USERCONFIG		#boot -c editor
options 	VISUAL_USERCONFIG	#visual boot -c editor
options 	KTRACE			#ktrace(1) support
options 	SYSVSHM			#SYSV-style shared memory
options 	SYSVMSG			#SYSV-style message queues
options 	SYSVSEM			#SYSV-style semaphores
options 	P1003_1B		#Posix P1003_1B real-time extensions
options 	_KPOSIX_PRIORITY_SCHEDULING
options		ICMP_BANDLIM		#Rate limit bad replies
options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev

options         NETSMB                  #SMB/CIFS requester
options         NETSMBCRYPTO            #encrypted password support for SMB
options         LIBMCHAIN               #mbuf management library

# Kernel side iconv library
options         LIBICONV

device		isa
device		eisa
device		pci

# Floppy drives
device		fdc0	at isa? port IO_FD1 irq 6 drq 2
device		fd0	at fdc0 drive 0
# device		fd1	at fdc0 drive 1

# ATA and ATAPI devices
device		ata0	at isa? port IO_WD1 irq 14
device		ata1	at isa? port IO_WD2 irq 15
device		ata
device		atadisk			# ATA disk drives
device		atapicd			# ATAPI CDROM drives
# device		atapifd			# ATAPI floppy drives
# device		atapist			# ATAPI tape drives
options 	ATA_STATIC_ID		#Static device numbering

# SCSI peripherals
device		scbus		# SCSI bus (required)
device		da		# Direct Access (disks)

# atkbdc0 controls both the keyboard and the PS/2 mouse
device		atkbdc0	at isa? port IO_KBD
device		atkbd0	at atkbdc? irq 1 flags 0x1
device		psm0	at atkbdc? irq 12

device		vga0	at isa?
options		VESA
options		SC_PIXEL_MODE

# splash screen/screen saver
pseudo-device	splash

# syscons is the default console driver, resembling an SCO console
device		sc0	at isa? flags 0x100

# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
device		vt0	at isa?
options 	XSERVER			# support for X server on a vt console
options 	FAT_CURSOR		# start with block cursor

# If you have a ThinkPAD, uncomment this along with the rest of the PCVT lines
options 	PCVT_SCANSET=2		# IBM keyboards are non-std

# Floating point support - do not disable.
device		npx0	at nexus? port IO_NPX irq 13

# Power management support (see LINT for more options)
device		apm0    at nexus?
options         SPIGOT_UNSECURE

# PCCARD (PCMCIA) support
device		card
device		pcic0	at isa? irq 0 port 0x3e0 iomem 0xd0000
device		pcic1	at isa? irq 0 port 0x3e2 iomem 0xd4000 disable

# Serial (COM) ports
device		sio0	at isa? port IO_COM1 flags 0x10 irq 4
device		sio1	at isa? port IO_COM2 irq 3
device		sio2	at isa? disable port IO_COM3 irq 5
device		sio3	at isa? disable port IO_COM4 irq 9

# Parallel port
device		ppc0	at isa? irq 7
device		ppbus		# Parallel port bus (required)
device		lpt		# Printer
device		ppi		# Parallel port interface device

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device		miibus		# MII bus support
device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)

# Pseudo devices - the number indicates how many units to allocate.
pseudo-device	loop		# Network loopback
pseudo-device	ether		# Ethernet support
pseudo-device	sl	1	# Kernel SLIP
pseudo-device	ppp	1	# Kernel PPP
pseudo-device	tun		# Packet tunnel.
pseudo-device	pty		# Pseudo-ttys (telnet etc)

pseudo-device	bpf		#Berkeley packet filter

# USB support
device		uhci		# UHCI PCI->USB interface
device		ohci		# OHCI PCI->USB interface
device		usb		# USB Bus (required)
device		ugen		# Generic
device		uhid		# "Human Interface Devices"
device		ukbd		# Keyboard
device		ulpt		# Printer
device		umass		# Disks/Mass storage - Requires scbus and da
device		ums		# Mouse
device		uscanner	# Scanners
device		urio		# Diamond Rio MP3 Player
 
# Sound Support
device		smbus
device		ichsmb
device		smb
device		pcm
options		PCI_ENABLE_IO_MODES
------------------------------------------------------------------------

Turns out you really do need to enable that PCVT_SCANSET line for these 
Thinkpads.  Didn't really notice a keyboard problem until I started trying to 
map keys in KDE.  Some of the combos weren't being picked up.

The apm0 config is a little different from what is sitting in GENERIC.  I 
picked up this line from tweaking on an older Compaq laptop.  The unsecure 
thing in there is so mere mortal users can access the power functions.

Yes, you really need all that stuff for the sound support.  I don't understand 
all the details, but I am listening to the B-52's at this moment so it can't 
be all bad.

And to finish off this config stuff for the base system, here is a copy of my 
rc.conf that seems to be working well enough for me.

/etc/rc.conf
------------------------------------------------------------------------
# /etc/rc.conf

# Give this here perty laptop a name
#
hostname="metlap.priv.metrol.net"

# Security Settings
#
kern_securelevel_enable="NO"
check_quotas="NO"

# Basic Network Settings
#
network_interfaces="fxp0 lo0"
ifconfig_lo0="inet 127.0.0.1"
ifconfig_fxp0="inet 192.168.0.4 netmask 255.255.255.0"
defaultrouter="192.168.0.2"

# Network Services
#
inetd_enable="YES"
nfs_client_enable="NO"
sshd_enable="YES"
sendmail_enable="YES"
ntpdate_enable="YES"

# Hardware Services
#
apm_enable="YES"
usbd_enable="YES"
pccard_enable="YES"
moused_enable="YES"

# Put down the pitch fork and pretend to be a penquin
linux_enable="YES"

# Some kinda NFS thing.  Need to read up on this.
nfs_reserved_port_only="YES"

# Tell NTPD who to ask for the time.
ntpdate_flags="ntp.ucsd.edu"

# Console side screen saver.
saver="daemon"

# Turn off that freaking Bell!  Ack, ppht, hrrmph!
keybell="off"
------------------------------------------------------------------------

I have not yet performed any testing with USB devices, PCMCIA cards, or the 
modem as of yet.  Due to this, I can't say if this config will be sufficient 
for dealing with those topics.

Next up, configuring X.

Later on,
-- 
"Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark 
to read."
 - Groucho Marx



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