Difference between revisions of "Flameman/ipaq"

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 +
For more interesting projects done by Flameman, be sure to check out his [[Flameman#master_index|project index]]
 +
 
= ipaq-36xx-Flameman =
 
= ipaq-36xx-Flameman =
 
 
  
 
== Introduction ==
 
== Introduction ==
Line 23: Line 23:
  
  
* flameman, i'm currently use this board for a project
+
* flameman, I'm currently use this board for a project
 
** msn daredevil-coder@hotmail.it
 
** msn daredevil-coder@hotmail.it
 
** email flamemaniii@gmail.com
 
** email flamemaniii@gmail.com
Line 339: Line 339:
 
== HW table ==
 
== HW table ==
  
http://www.elinux.org/Flameman/ipaq/hw
+
Flameman/ipaq/hw
 
+
  
 
== Jtag ==
 
== Jtag ==
Line 355: Line 354:
 
=== news for iPAQ ===
 
=== news for iPAQ ===
  
you can read about kernel status and user land @ http://www.elinux.org/Flameman/ipaq/status
+
you can read about kernel status and user land @ [[Flameman/ipaq/status]]
  
  
Line 694: Line 693:
 
Feel free to take a look there, that's interesting, anyway if you are still interested about iPAQ: these are my experimental results about iPAQ 3630-3660 and the 2.6
 
Feel free to take a look there, that's interesting, anyway if you are still interested about iPAQ: these are my experimental results about iPAQ 3630-3660 and the 2.6
  
 
+
[[Flameman/ipaq/kernel]]
http://www.elinux.org/Flameman/ipaq/kernel
+
  
 
=== studying how to write kernel drivers ===
 
=== studying how to write kernel drivers ===
Line 822: Line 820:
  
 
==== issue ====
 
==== issue ====
 +
 +
[*] BootBlaster locks up WinCE as soon as I run it!
 +
-> If you are running BootBlaster from an SD card, try copying it to a location on the iPAQ itself eg. the "iPAQ file store"
 +
  
 
http://www.mail-archive.com/angstrom-distro-users@linuxtogo.org/msg01408.html
 
http://www.mail-archive.com/angstrom-distro-users@linuxtogo.org/msg01408.html
Line 887: Line 889:
  
 
obsoleted info http://www.handhelds.org/moin/moin.cgi/HaRET
 
obsoleted info http://www.handhelds.org/moin/moin.cgi/HaRET
 +
 +
==== issue ====
 +
 +
http://www.mail-archive.com/haret@handhelds.org/msg00770.html
 +
 +
=== ideas2 ====
 +
 +
http://www.math.bme.hu/~lackac/ipaq/linux-ipaq/Linux-iPAQ-HOWTO-1.1.htm
  
 
== HW expansion, hack and such a stuff ==
 
== HW expansion, hack and such a stuff ==
Line 908: Line 918:
 
== image of the previous kernel 2.4 rootfs and such a stuff ==
 
== image of the previous kernel 2.4 rootfs and such a stuff ==
  
 
+
Media:old-roofs.jffs2|old-rootfs.jffs2
[[Media:old-roofs.jffs2|old-rootfs.jffs2]]
+
 
+
  
 
== About stage3 ==
 
== About stage3 ==
Line 1,249: Line 1,257:
  
 
== All you have to kwnow about The pcmcia ==
 
== All you have to kwnow about The pcmcia ==
 
+
[[Flameman/pcmcia]]
http://www.elinux.org/Flameman/pcmcia
+
  
 
== About devtools ==
 
== About devtools ==
Line 1,275: Line 1,282:
 
http://freshmeat.net/projects/gentooforzaurus/
 
http://freshmeat.net/projects/gentooforzaurus/
 
Gentoo For Zaurus is a port of the Gentoo Distribution to the Zaurus PDA, based on Cacko X11 Rom and The Emerde Project. It can be mounted over NFS so no changes to a current configuration are needed. It includes a native gcc environment for ARM, the zgcc-3.3.1 cross compiler for the main PC with distcc configured so that the main PC does the actual compiling, and X11 for testing applications. The first public release was version 0.1.1, dated January 6, 2004. Version 0.2.2 was released February 2, 2004.
 
Gentoo For Zaurus is a port of the Gentoo Distribution to the Zaurus PDA, based on Cacko X11 Rom and The Emerde Project. It can be mounted over NFS so no changes to a current configuration are needed. It includes a native gcc environment for ARM, the zgcc-3.3.1 cross compiler for the main PC with distcc configured so that the main PC does the actual compiling, and X11 for testing applications. The first public release was version 0.1.1, dated January 6, 2004. Version 0.2.2 was released February 2, 2004.
 +
 +
[[Category:Flameman]]
 +
[[Category:Development Boards]]

Latest revision as of 07:33, 28 October 2011

For more interesting projects done by Flameman, be sure to check out his project index

ipaq-36xx-Flameman

Introduction

The Target-goal of this page is

  • install gentoo-arm into microdrive
  • make the board able to boot from it
  • describe how to build a jtag cable (to debug and recover from "Brickage")
  • describe something useful with you can do with the PDA


logical steps about installing gentoo

  • add the JTAG connector at ipaq-36**
  • build the JTAG cable (you could skip it, it is suggested))
  • study the bootloader
  • make partitions on the microdrive
  • populate them
  • set the bootloader environment to boot from the microdrive

People you could contact if you need help

  • flameman, I'm currently use this board for a project
    • msn daredevil-coder@hotmail.it
    • email flamemaniii@gmail.com
    • irc.nick flameman (channel #edev, #gentoo-ppc)
  • you ... if you want ;-)

About the board

Ipaq-3660.jpg


ipaq PDA is a shortened name for Pesktop Personal Computer developed by Compact & HP.

iPAQ presently refers to a Pocket PC and personal digital assistant first unveiled by Compaq in April 2000; the name was borrowed from Compaq's earlier iPAQ Desktop Personal Computers. Since Hewlett-Packard's acquisition of Compaq, the product has been marketed by HP. The device is the main competition to the Palm, but provides more multimedia capabilities using a Microsoft Windows interface. In addition to this, there are several Linux distributions that will also operate on some of these devices. Earlier, units were modular. "Sleeve" accessories, technically called jackets, which slide around the unit and add functionality such as a card reader, wireless networking, GPS, and even extra batteries were used. Current iPAQs have most of these features integrated into the base device itself.

Hewlett-Packard introduced the first SmartPhone iPaq Pocket PC that looks like a regular cell phone and has VoIP capability. The series is the HP iPAQ 500 Series Voice Messenger


Compaq iPAQ H3600 series

Compaq's flagship iPAQs were the 3600 series models. Originally running the Microsoft Windows for Pocket PC 2000 OS, these devices featured 12-bit color displays, 32/64 MB of RAM, and 16 MB ROM.

Models in the 3600 series are:

3630, 3635, 3650 - which are identical models with 16 MB ROM and 32 MB RAM sold via different marketing channels. The 3635 was accompanied by a CF expansion sleeve that was sold separately with the other 2.

3660, 3670 - 64MB RAM. The 3670 was distributed in the US while the 3660 was distributed in Europe.

A Pocket PC 2002 OS upgrade is available, but the smaller ROM requires some software such as the media player to install in volatile RAM instead of the ROM as in the previous Pocket PC 2000.

As used units are low price, they are a great way to inexpensively get started with a PDA.

While limited by no on-board expansion slot, the iPAQ 3600 series memory and functionality can still be expanded by optional Compact Flash and PCMCIA sleeves, which allow users to add memory and peripherals. Some of these sleeves contain extra batteries to extend the iPAQ's battery life under the strain of added devices.

Overview

The main board of the iPAQ H3660 consists of the SA-1110 CPU, flash ROM, SDRAM, serial port (RS-232C), USB client port, FIR, touch panel interface, stereo audio codec, audio in/out circuit, microcontroller, and the expansion pack interface and connector.

The board consists of:

  • CPU StrongARM core: 150 Dhrystone 2.1 MIPS @ 133 MHz, 235 Dhrystone 2.1 MIPS @ 206 MHz. The arm SA-1100 is a solid & smart implementation of the arm v4 little endian architecture
  • RAM soldered 64MB DDR onboard memory chip
  • CACHE 32-way set-associative caches
    • 16 kilobyte instruction cache, 8 kilobyte write-back data cache
    • 32-entry MMUs
    • read/write buffer
  • LAN On-Sleeve ethernet: pcmcia 3com*** 10/100 Mbit/s Fast Ethernet
  • UART On-board SA-1100-uart mini-to-DB9 RS232C asynchronous serial port, speeds up to 230k, tested up to 115200bps
  • CF iPAQ pcmcia sleeve has support for IBM/Hitachi Microdrive (/dev/cfa)
  • ROM 16MB flash where it is stored the bootloader
  • System PCB __.0 cm x __.0 cm
  • RTC the real time clock chip is missing???
  • LED Power, 2 LED pairs
  • Watchdog hardware watchdog timer???
  • Power Power-management features: normal (full-on) mode, idle (power-down) mode, sleep (power-down) mode
    • < 240mW @ 1.55V core/133 MHz(TBC)
    • < 400mW @ 1.75V core/206 MHz(TBC)
  • PLL Integrated clock generation, Internal phase-locked loop (PLL), 3.6864-MHz oscillator, 32.768-kHz oscillator
  • Display Transflective TFT liquid crystal display, 12bit color, 240x320
  • I/O Sleeve connector, USB/serial connector, IrDA/CIR
  • Battery 950 mAh Lithium Polymer rechargeable
  • Additional features built into SA-1110 chipset
    • Memory controller supporting ROM, synchronous mask ROM (SMROM), flash, DRAM, synchronous DRAM (SDRAM), SRAM, and SRAM-like variable latency I/O
    • LCD controller: 1-, 2-, or 4-bit gray-scale levels, 8-, 12-, or 16-bit color levels
    • Serial communications module supporting: SDLC, 230-Kbps UART
    • Touch-screen, audio, telecom port
    • Infrared data (IrDA) serial port: 115 Kbps, 4 Mbps
    • Six-channel DMA controller
    • Integrated two-slot PCMCIA controller
    • Twenty-eight general-purpose I/O ports
    • Real-time clock with interrupt capability
    • On-chip oscillators for clock sources
    • Interrupt controller
    • Power-management features
    • Four general-purpose interruptible timers
    • 12-Mbps USB device controller
    • Synchronous serial port (UCB1100, UCB1200, SPI, TI, Wire)
    • 256 mini-ball grid array (mBGA)



  • ARM
    • Arm Architecture Reference Manual book edited by Dave Jagger (get it from Amazon.com)
    • ARM System Architecture book by Steve Furber (get it from Amazon.com or Barnes & Noble)
    • ARM *NIX doc http://www.arm.linux.org.uk/

Clock generators

SA-1110 uses only two crystals, 32.768 KHz and 3.6864 MHz, to generate all frequency needed.

Please check SA-1110 Developer's Manual section 8.3 and Appendix B and C on the requirements of these two crystals. The frequency column using 3.579545 MHz crystal is for reference only, the iPAQ H3600 does not use this crystal in its design.

The core frequency can be programmed to the values in table below.


CCF<4..0>


Core Clock Frequency w/3.6864 MHz X'tal


Core Clock Frequency w/3.579545 MHz X'tal

00000


59.0 MHz


57.3 MHz

00001


73.7 MHz


71.6 MHz

00010


88.5 MHz


85.9 MHz

00011


103.2 MHz


100.2 MHz

00100


118.0 MHz


114.5 MHz

00101


132.7 MHz


128.9 MHz

00110


147.5 MHz


143.2 MHz

00111


162.2 MHz


157.5 MHz

01000


176.2 MHz


171.8 MHz

01001


191.7 MHz


186.1 MHz

01010


206.4 MHz


200.5 MHz

01011


221.2 MHz


214.8 MHz

01100 - 11111


Not Supported

Memory Map

Address range


Function


Description 1 0h0000 0000 - 0h07FF FFFF Static Bank Select 0 (128 MB) iPAQ H3600 onboard flash (MCS0#) 2 0h0800 0000 - 0h0FFF FFFF Static Bank Select 1 (128 MB) Reserved (MCS1#) 3 0h1000 0000 - 0h17FF FFFF Static Bank Select 2 (128 MB) Expansion pack (MCS2#) 4 0h1800 0000 - 0h1FFF FFFF Static Bank Select 3 (128 MB) Expansion pack (MCS3#) 5 0h2000 0000 - 0h2FFF FFFF PCMCIA Socket 0 Space (256 MB) Expansion pack PCMCIA/CF slot 0 Interface 6 0h3000 0000 - 0h3FFF FFFF PCMCIA Socket 1 Space (256 MB) Expansion pack PCMCIA/CF slot 1 Interface 7 0h4000 0000 - 0h47FF FFFF Static Bank Select 4 (128 MB) Static Memory or Variable Latency I/O Interface, 256 MB(MCS4#, MCS5#)

(Expansion pack MCS4#) 8 0h4800 0000 - 0h4FFF FFFF Static Bank Select 5 (128 MB) Extended I/O and PPSH use (MCS5#) 9 0h5000 0000 - 0h7FFF FFFF Reserved (768 MB) 10 0h8000 0000 - 0h8FFF FFFF Peripheral Control Module Registers

(256 MB)

11 0h9000 0000 - 0h9FFF FFFF System Control Module Registers

(256 MB)

12 0hA000 0000 - 0hAFFF FFFF Memory and Expansion Registers

(256 MB)

13 0hB000 0000 - 0hBFFF FFFF LCD and DMA Registers (256 MB) 14 0hC000 0000 - 0hC7FF FFFF DRAM Bank 0 (128 MB) 512 MB. The iPAQ H3600 uses bank 0 only. 15 0hC800 0000 - 0hCFFF FFFF DRAM Bank 1 (128 MB) Reserved 16 0hD000 0000 - 0hD7FF FFFF DRAM Bank 2 (128 MB) Reserved 17 0hD800 0000 - 0hDFFF FFFF DRAM Bank 3 (128 MB) Reserved 18 0hE000 0000 - 0hE7FF FFFF Zeros Bank (128 MB) Cache flush replacement data.

Reads return zero, 128 MB 19 0hE800 0000 - 0hFFFF FFFF Reserved (384 MB)


Supporting two-channel CF/PCMCIA expansion pack

The iPAQ H3600 supports two-channel CF/PCMCIA expansion pack decode, but needs special handling on Card inserted detection(CARD_IND#) and Card IRQ(CARD_IRQ#). On the expansion pack connector, the PSKTSEL signal can be used to decode which CF/PCMCIA slot is selected for two-channel CF/PCMCIA expansion packs. PSKTSEL=0 selects channel 0, PSKTSEL=1 selects channel 1.

The default PCMCIA/CF slot is slot 0 and supports external connections. The second PCMCIA/CF is slot 1 and is for embedded slot only.

Memory Locations

memory map of the board will be added as soon as possible


addr begin addr end area
...  ?? ram, userspace
****  ?? ram, userspace

Open questions


1) how/where is ram mapped ?

2) how/where is microdrive mapped ?

3) how/where is pci mapped ?

3) what is the bootstrap addr of the flash ?

...

Problems

about sleeve 2xpcmcia: card inserted detection(CARD_IND#) seems to have success, while Card IRQ(CARD_IRQ#) has failure

anyway the higher layer dosn't attach: the real reason why it happens is obscure and need to be debugged a bit ... NO ONE KERNEL FROM THE HH CVS IS ABLE TO HANDLE THE SLEEVE 2 x PCMCIA

so from my point of view, there is nothing working in the 36** archive: i mean the sleeve 2xpcmcia has never worked with any kernel 2.6 !


i have to investigate the reason why, but ... i need a real working machine, so i think i will switch myself to h55** that should work: in this case, if i would have a confirm the h55** is really working with such a sleeve ... i will have a look in his specific kernel sources tree, just to understood and compare what is the specific problem of the h36** support !


anybody working with h55** and sleeve 2xpcmcia ? please report your experience @ flamemaniii@gmail.com

Images of the board

Ipaq-3660 board.jpg

HW table

Flameman/ipaq/hw

Jtag

http://openwince.sourceforge.net/jtag/iPAQ-3600/

About kernel

news about

http://kernelnewbies.org/LinuxChanges


news for iPAQ

you can read about kernel status and user land @ Flameman/ipaq/status




any suggestion, testing, such a collaboration is pretty welcome !





.

poor dmesg (dual pcmcia sleeve)

boot> ser_con
serial console at your service...
boot> boot vfat
h3600_sleeve_init_module
h3600_generic_pcmcia_init_module: registering sleeve drivers
registering sleeve driver 0003ACF4
registering sleeve driver 0003AD44
registering sleeve driver 0003ACA4
h3600_sleeve_insert: no spi read, defaulting sleeve vendor
h3600_sleeve_insert: no spi read, defaulting sleeve deviceid
 sleeve vendorid=00001125
 sleeve deviceid=0000D7C3
pcmcia_probe_sleeve
  probing for dual pcmcia sleeve
  dual_pcmcia_linkup[0]->prc=000019B0
dual_pcmcia_probe_sleeve
h3600_sleeve_insert: matched driver Compaq PC Card Sleeve
pcmcia_init_module
cis[0] =00000001
  01 04 DF 12 01 FF
  1C 05 03 DF 12 01 FF
  18 02 DF 01
  21 02 04 01
  funcid=00000004
    fixed disk
  22 02 01 01
  22 03 02 08 0F
  1A 05 01 07 00 02 0F
  1B 0B C0 C0 A1 27 55 4D 5D 4E 08 00 20
  1B 06 00 01 21 B5 1E 3E
  1B 0D C1 41 99 27 55 4D 5D 4E 64 F0 FF FF 20
  1B 06 01 01 21 B5 1E 3E
  1B 12 C2 41 99 27 55 4D 5D 4E EA 61 F0 01 07 F6 03 01 EE 20
  1B 06 02 01 21 B5 1E 3E
  1B 12 C3 41 99 27 55 4D 5D 4E EA 61 70 01 07 76 03 01 EE 20
  1B 06 03 01 21 B5 1E 3E
  20 04 19 03 00 00
  manfid[0]=00000019
  manfid[1]=00000003
  15 16 04 01 48 49 54 41 43 48 49 00 6D 69 63 72 6F 64 72 69 76 65 00 FF
end
pcmcia_insert: funcid = 00000004
  serial_number:             N2H2ZDBA
  firmware_revision: DNBOCA2A
  model_number: HMS360402D5CF00                         
  n_sectors_user_addressable=00000000
  bytes_per_sector=00000200
  major_version=00007068
  minor_version=0000500C
  flags=0000848A
  ACTUAL bytes_per_sector=00000200
cis[0] =00000001
  01 03 00 00 FF
  17 03 12 00 FF
  15 39 04 01 41 64 61 70 74 65 63 2C 20 49 6E 63 2E 00 41 50 41 2D 31 34 36 30 20 53 43 53 49 20 48 6F 73 74 20 41 64 61 70 74 65 72 00 56 65 72 73 69 6F 6E 20 30 2E 30 31 00 FF
  20 04 2F 01 02 00
  manfid[0]=0000002F
  manfid[1]=00000001
  1A 05 01 08 00 20 01
  1B 0F C9 01 19 49 55 65 06 CA 60 40 03 1F 30 00 1E
  1B 07 08 08 CA 60 40 01 1F
end
pcmcia_insert: funcid = 00000000
ptable signature=0000AA55
Mounting vfat on partition 00000000
cmd vfat mount: partid=00000000
vfat mount: reading bpb_info
  oemname=MSDOS5.0
 Reading params from file: /boot/params
vfat_find_file_entry: fname='boot/params'
                    dirname='boot'
                   basename='PARAMS'
vfat_find_dir_entry: fname='boot'
                   dirname=''
                  basename='boot'
  searching root_dir_entries
vfat_read_clusters_offset: reached VFAT_EOC at bytes_read=00000200
find_file_in_dir:  READt"ŸÁh"ŸÁ,ë
   attr=00000010
   first_cluster=00000003
   n_bytes=00000000
find_file_in_dir:  READt"ŸÁh"ŸÁ,ë
   attr=00000010
   first_cluster=00000000
   n_bytes=00000000
find_file_in_dir:  GENTOO
   attr=00000020
   first_cluster=00000004
   n_bytes=002680B1
find_file_in_dir:  GENTOO
   attr=00000020
   first_cluster=00000004
   n_bytes=002680B1
find_file_in_dir:  ZIMAGE
   attr=00000020
   first_cluster=00001345
   n_bytes=00120790
find_file_in_dir:  ZIMAGE
   attr=00000020
   first_cluster=00001345
   n_bytes=00120790
find_file_in_dir:  PARAMS
   attr=00000020
   first_cluster=00001ACC
   n_bytes=00000099
+ set linuxargs "root=/dev/hda3 init=/bin/bash console=ttySA0,115200"
  setting param <linuxargs> to value <root=/dev/hda3 init=/bin/bash console=ttySA0,115200>
+ set kernel_filename boot/zimage
  setting param <kernel_filename> to value <boot/zimage>
+ set initrd_filename boot/initrd
  setting param <initrd_filename> to value <boot/initrd>
+ set rootfstype ext3
  setting param <rootfstype> to value <ext3>
 Reading kernel from file: boot/zimage
vfat_find_file_entry: fname='boot/zimage'
                    dirname='boot'
                   basename='ZIMAGE'
vfat_find_dir_entry: fname='boot'
                   dirname=''
                  basename='boot'
  searching root_dir_entries
vfat_read_clusters_offset: reached VFAT_EOC at bytes_read=00000200
find_file_in_dir:  PARAt"ŸÁh"ŸÁ,ë
   attr=00000010
   first_cluster=00000003
   n_bytes=00000000
find_file_in_dir:  PARAt"ŸÁh"ŸÁ,ë
   attr=00000010
   first_cluster=00000000
   n_bytes=00000000
find_file_in_dir:  GENTOO
   attr=00000020
   first_cluster=00000004
   n_bytes=002680B1
find_file_in_dir:  GENTOO
   attr=00000020
   first_cluster=00000004
   n_bytes=002680B1
find_file_in_dir:  ZIMAGE
   attr=00000020
   first_cluster=00001345
   n_bytes=00120790
 Reading initrd from file: boot/initrd
vfat_find_file_entry: fname='boot/initrd'
                    dirname='boot'
                   basename='INITRD'
vfat_find_dir_entry: fname='boot'
                   dirname=''
                  basename='boot'
  searching root_dir_entries
vfat_read_clusters_offset: reached VFAT_EOC at bytes_read=00000200
find_file_in_dir:  ZIMAt"ŸÁh"ŸÁ,ë
   attr=00000010
   first_cluster=00000003
   n_bytes=00000000
find_file_in_dir:  ZIMAt"ŸÁh"ŸÁ,ë
   attr=00000010
   first_cluster=00000000
   n_bytes=00000000
find_file_in_dir:  GENTOO
   attr=00000020
   first_cluster=00000004
   n_bytes=002680B1
find_file_in_dir:  GENTOO
   attr=00000020
   first_cluster=00000004
   n_bytes=002680B1
find_file_in_dir:  ZIMAGE
   attr=00000020
   first_cluster=00001345
   n_bytes=00120790
find_file_in_dir:  ZIMAGE
   attr=00000020
   first_cluster=00001345
   n_bytes=00120790
find_file_in_dir:  PARAMS
   attr=00000020
   first_cluster=00001ACC
   n_bytes=00000099
find_file_in_dir:  PARAMS
   attr=00000020
   first_cluster=00001ACC
   n_bytes=00000099
find_file_in_dir:  README.TXT
   attr=00000020
   first_cluster=00002236
   n_bytes=000000CC
find_file_in_dir:  README.TXT
   attr=00000020
   first_cluster=00002236
   n_bytes=000000CC
Could not find file.cmd vfat mount: partid=00000000
vfat mount: reading bpb_info
  oemname=MSDOS5.0
pcmcia_remove_sleeve
Booting vfat...
kernel partition base C0008000
kernel_magic=E1A00000
kernel_region_words[9]=016F2818
Linux ELF flash_imgstart=C0008000 size=00000000 dest=C0000000 offset=00008000
MMU Control=C19F4071
MMU PIDVAM=00000000
Skipping kernel copy by request.
C0008000: E1A00000
C0008004: E1A00000
C0008008: E1A00000
C000800C: E1A00000
C0008010: E1A00000
C0008014: E1A00000
C0008018: E1A00000
C000801C: E1A00000
C0008020: EA000002
C0008024: 016F2818
root_filesystem_name=ide
Grabbed linuxargs, argc = 00000000
Using mach_type 00000016
setting boot parameters to
root=/dev/hda3 init=/bin/bash console=ttySA0,115200
mdcnfg=0000F367
Making core tag at C0000100
Making cmdline tag at C0000114
Making mem32 tag at C00001AC
Making initrd tag at C00001BC
  initrd.start=C0800000
  initrd.size=00000000
command line is: mtdparts=ipaq:0x00040000@0x00000000(bootldr)ro,0x00FC0000@0x00040000(root) root=/dev/hda3 init=/bin/bash console=ttySA0,115200  rootfstype=ext3 
Disabling LCD controller
linuxEntryPoint=C0008000
Booting Linux image
Uncompressing Linux............................................................................ done, booting the kernel.
Linux version 2.6.21-hacked-ipaq-3660 (root@queen-vittoria) (gcc version 4.1.0) #6 Sun Feb 15 20:22:10 CET 2009
CPU: StrongARM-1110 [6901b118] revision 8 (ARMv4), cr=c000717f
Machine: Compaq iPAQ H3600
Memory policy: ECC disabled, Data cache writeback
Built 1 zonelists.  Total pages: 16384
Kernel command line: mtdparts=ipaq:0x00040000@0x00000000(bootldr)ro,0x00FC0000@0x00040000(root) root=/dev/hda3 init=/bin/bash console=ttySA0,115200  rootfstype=ext3 �
PID hash table entries: 512 (order: 9, 2048 bytes)
start_kernel(): bug: interrupts were enabled early
Console: colour dummy device 80x30
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 62464KB available (1918K code, 427K data, 96K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
SCSI subsystem initialized
NET: Registered protocol family 2
IP route cache hash table entries: 512 (order: -1, 2048 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 2048 bind 1024)
TCP reno registered
NetWinder Floating Point Emulator V0.97 (double precision)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
pccard: PCMCIA card inserted into slot 0
pccard: PCMCIA card inserted into slot 1
Serial: SA11x0 driver $Revision: 1.50 $
sa11x0-uart.3: ttySA0 at MMIO 0x80050000 (irq = 17) is a SA1100
loop: loaded (max 8 devices)
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
SCSI Media Changer driver v0.25 
Intel ISA PCIC probe: <1>Unable to handle kernel NULL pointer dereference at virtual address 000003e0
pgd = c0004000
[000003e0] *pgd=00000000
Internal error: Oops: c0007805 [#1]
Modules linked in:
CPU: 0
PC is at i365_get+0x48/0x60
LR is at identify+0x7c/0x1d8
pc : [<c0143ab4>]    lr : [<c0016af4>]    Not tainted
sp : c0317f44  ip : 60000013  fp : c0317f50
r10: 00000000  r9 : 00000000  r8 : 00000000
r7 : 000003e0  r6 : c0316000  r5 : c025f640  r4 : c0217824
r3 : 00000000  r2 : 000003e0  r1 : 00000000  r0 : 00000000
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  Segment kernel
Control: C000717F  Table: C000717F  DAC: 00000017
Process swapper (pid: 1, stack limit = 0xc0316250)
Stack: (0xc0317f44 to 0xc0318000)
7f40:          c0317f70 c0317f54 c0016af4 c0143a78 c0217824 c025f640 c0316000 
7f60: 00000000 c0317fac c0317f74 c0017810 c0016a84 c0317f80 c01030f8 c0143a1c 
7f80: c001b1c4 c001b1c4 c001ac9c c0316000 00000000 00000000 00000000 00000000 
7fa0: c0317ff4 c0317fb0 c00200b4 c001779c 00000000 00000000 c002002c c0037fe4 
7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
7fe0: 00000000 00000000 00000000 c0317ff8 c0037fe4 c0020038 71657220 65726975 
Backtrace: 
[<c0143a6c>] (i365_get+0x0/0x60) from [<c0016af4>] (identify+0x7c/0x1d8)
[<c0016a78>] (identify+0x0/0x1d8) from [<c0017810>] (init_i82365+0x80/0x454)
 r7 = 00000000  r6 = C0316000  r5 = C025F640  r4 = C0217824
[<c0017790>] (init_i82365+0x0/0x454) from [<c00200b4>] (init+0x88/0x264)
[<c002002c>] (init+0x0/0x264) from [<c0037fe4>] (do_exit+0x0/0x74c)
 r7 = 00000000  r6 = 00000000  r5 = 00000000  r4 = 00000000
Code: e1d330b0 e5922228 e0811303 e20110ff (e5c21000) 
 <0>Kernel panic - not syncing: Attempted to kill init!


the dual pcmcia sleeve is not working


good dmesg (1x pcmcia sleeve)

coming soon


what/where

kernels 2.6

Using the bootldr there is the possibility to boot from the pcmcia sleeves in where it can be allocated a microdrive (CF2). it's not possible to maintain the windows CE on the iPAQ with a sort of dual boot. As far as i know there is no 2.6 kernel used at this time (that means no support), there is only 2.4 cause most of developers are working on the openmoko project which is a full open source mobile phone.

Feel free to take a look there, that's interesting, anyway if you are still interested about iPAQ: these are my experimental results about iPAQ 3630-3660 and the 2.6

Flameman/ipaq/kernel

studying how to write kernel drivers

http://lwn.net/Kernel/LDD3/

also


The socket controller

The socket controller serves as a bridge between PC Card devices and the system bus. There are several varieties of controllers, but all share the same basic functionality. The Socket Services software layer takes care of all the details of how to program the host controller.

The socket controller has the job of mapping windows of addresses in the host memory and IO spaces to windows of addresses in card space. All supported controllers support at least four independent memory windows and two IO windows per socket.

Each memory window is defined by a base address in the host address space, a base address in the card address space, and a window size. Some controllers differ in their alignment rules for memory windows, but all controllers will support windows whose size is at least 4K and also a power of two, and where the base address is a multiple of the window size. Each window can be programmed to point to either attribute or common memory.

IO windows differ from memory windows in that host addresses that fall within an IO window are not modified before they are passed on to an IO card. Effectively, the base addresses of the window in the host and card address spaces are always equal. IO windows also have no alignment or size restrictions; an IO window can start and end on any byte boundary in the 64K IO address space.

The PC Card bus defines a single interrupt signal from the card to the controller. The controller then has the responsibility of steering this interrupt to an appropriate interrupt request (``irq) line. All controllers support steering card IO interrupts to essentially any free interrupt line. Because steering happens in the controller, the card itself is unaware of which interrupt it uses.

All PC Card controllers can generate interrupts in response to card status changes. These interrupts are distinct from the IO interrupts generated by an IO card, and use a separate interrupt line. Signals that can generate interrupts include card detect, ready/busy, write protect, battery low, and battery dead


pcmcia sleeve

There is an issue with pcmcia sleeve: the problem doesn't occur with single slot sleeves with part number 173396-001 but does occur in dual slot sleeves with part number 216198-B21. And we have only today found that the problem also occurs with new (?) model single slot sleeves with part number 249704-B22.


sources fix up is required


how to write a pcmcia kernel driver http://www.linux-mag.com/id/1981

  • sa11xx_drv_pcmcia_probe -> soc_common_drv_pcmcia_probe




  • drivers/pcmcia/cs.c: socket_insert
  • drivers/pcmcia/pcmcia_ioctl.c: p_dev = pcmcia_device_add(s, bind_info->function);
  • drivers/pcmcia/ds.c: "pcmcia: registering new device %s\n" -> struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)

dmesg

on 04-12-2009

nothing


gentoo, booting from the CF

initialize it

   1. boot> sleeve insert
   2. boot> pcmcia insert

http://handhelds.org/moin/moin.cgi/BootingLinuxFromCF

http://blog.lsweb.eu/index.php?itemid=2

boot loader

bootblaster

kexecboot

http://jay-home.ath.cx/zImage-kexecboot-2.6.21-hh20-r12-h5000.bin

http://jay-home.ath.cx/zImage-2.6.21-hh20-r25-h5000.bin

http://jay-home.ath.cx/modules-2.6.21-hh20-r25-h5000.tgz

thanks to Jay7

idea

"boot ide" doesn't use a filesystem at all. I suspect that what you really want is "boot vfat", which uses a VFAT filesystem. The disk can (indeed, probably should) have a partition table.

Bootldr can't read ext2, so you would need to create a special /boot partition as VFAT. Other than that, and the normal drama relating to having the root partition on a PCMCIA device, it should boot Debian just fine.


proof fix up

I have been trying to boot Intimate off of a 2GB Kingston PCMCIA hard drive. It looks like the boot vfat function is not reading the partition table on the drive correctly. I have found several posts by other people who have 2GB or 5GB drives that have identical errors. I would like to know if anyone has succeeded in working around this problem.

   Hmm...I wrote that wiki based on my own experience getting it going.
   Unless the 4GB card is just too big for the sleeve or some other
   unidentified problem, it should work.

So I believe I located the problem. This line from the mkdosfs man page:


   -F FAT-size
                Specifies  the type of file allocation tables used (12, 16 or 32
                bit).  If  nothing  is  specified,  mkdosfs  will  automatically
                select  between  12  and  16  bit,  whatever fits better for the
                filesystem size.  32 bit FAT  (FAT32  format)  must  (still)  be
                selected explicitly if you want it.


Running "mkdosfs -F16 /dev/hde1" on a 256 MB vfat partition created a bootable CF microdrive. My guess is that for most of the partition sizes I chose, it defaulted to FAT12 when I didn't specify that option, even though I selected FAT16 in fdisk. Thanks again for your help.

issue

[*] BootBlaster locks up WinCE as soon as I run it! -> If you are running BootBlaster from an SD card, try copying it to a location on the iPAQ itself eg. the "iPAQ file store"


http://www.mail-archive.com/angstrom-distro-users@linuxtogo.org/msg01408.html

I am attempting to boot from a 4GB Hitachi Microdrive on an iPAQ h5500 with a PCMCIA-cf, following the steps at:

http://www.handhelds.org/moin/moin.cgi/BootingLinuxFromCF

The most common problem I am running into is the "filename too long" error. There was a quick fix posted online that failed for me (remounting the vfat partition as msdos and recopying initrd, param and zimage in). There was also a suggestion that bootldr cannot handle large vfat partitions (> 32 MB), but the post was years old. Is this still the case?

Here is what happens using

boot> boot vfat                                                                
warning, no sleeve detected.  attempting pcmcia insert anyway.                  
h5400_control_egpio: not implemented yet for this egpio                        
h3600_sleeve_insert: no spi read, defaulting sleeve vendor                      
h3600_sleeve_insert: no spi read, defaulting sleeve deviceid                    
 sleeve vendorid=00001125                                                      
 sleeve deviceid=0000D7C3                                                      
pcmcia_probe_sleeve                                                            
h5400_control_egpio: not implemented yet for this egpio                        
  probing for dual pcmcia sleeve                                                
  dual_pcmcia_linkup[0]->prc=00000000                                          
dual_pcmcia_probe_sleeve                                                        
h5400_control_egpio: not implemented yet for this egpio                        
h3600_sleeve_insert: matched driver Compaq PC Card Sleeve                      
cis[0] =000000FF                                                                
end                                                                            
pcmcia_insert: funcid = 00000000                                                
cis[0] =000000FF                                                                
end                                                                            
pcmcia_insert: funcid = 00000000                                                
Mounting vfat on partition 00000000                                            
cmd vfat mount: partid=00000000                                                
vfat mount: reading bpb_info                                                    
pcmcia_insert: funcid = 00000000                                                
Mounting vfat on partition 00000000                                            
cmd vfat mount: partid=00000000                                                
vfat mount: reading bpb_info                                                    
 Reading params from file: /boot/params                                        
vfat_find_file_entry: fname='boot/params'                                      
                    dirname='boot'                                              
                   basename='PARAMS'                                            
vfat_find_dir_entry: fname='boot'                                              
                   dirname=''                                                  
                  basename='boot'                                              
  searching root_dir_entries                                                    
Invalid long filename entry: filename too long                                  
 Reading kernel from file: boot/zImage                                          
vfat_find_file_entry: fname='boot/zImage'                                      
                    dirname='boot'                                              
                   basename='ZIMAGE'                                            
vfat_find_dir_entry: fname='boot'                                              
                   dirname=''                                                  
                  basename='boot'                                              
  searching root_dir_entries                                                    
Invalid long filename entry: filename too long                                  
read zimage failed rc=FFFFFFFE  

haret

http://www.handhelds.org/~koconnor/haret/

obsoleted info http://www.handhelds.org/moin/moin.cgi/HaRET

issue

http://www.mail-archive.com/haret@handhelds.org/msg00770.html

ideas2 =

http://www.math.bme.hu/~lackac/ipaq/linux-ipaq/Linux-iPAQ-HOWTO-1.1.htm

HW expansion, hack and such a stuff

compact keyboard

Manufacture's Part# B50111-001, 250111-001, 250110-001, 251274-001

Ipaq-keyboard.jpg

Micro Keyboard for iPaq H3800 series (3830, 3835, 3850, 3870, 3875, etc...) H3900 series (3950, 3955, 3970, 3975, etc), H5400 series (5450, 5455, etc), and H5500 series (5550, 5555) Looking for a small and lightweight keyboard for your iPAQ? This micro keyboard fits seamlessly and securely to your iPAQ Pocket PC with or without an Expansion Pack attached. Its ergonomic design and standard layout let you conveniently type quickly and comfortably anywhere.


it needs to be adapted to h36**, or it will be good in case i will switch to h5500


X11: emerging x11-base/kdrive --> USE=kdrive cross-emerge xorg

image of the previous kernel 2.4 rootfs and such a stuff

Media:old-roofs.jffs2|old-rootfs.jffs2

About stage3


what is the difference between arm and arm41 ? arm and armeb ?

is the (iPAQ 36** CPU) arm-sa1100 big or little endian ?


as far as i understand

  • stage3-armeb mean big endian
  • stage3-arm is little endian
  • sa-1100 should be an arm.v4 ... so stage3-arm41 should be fine


cross emerge

http://www.gentoo.org/proj/en/base/embedded/handbook/?part=1&chap=5


Qt-embedded-interest, X-Server over qt-embedded?

Qt/Embedded

Qt/embedded is a version of the Qt™ library that does not use the X window system, but draws directly to the framebuffer on Linux® systems. It is therefore interesting for embedded systems which have tight restrictions on the memory usage of the whole system. Its API is fully compatible with the one of the X11 version.

A great lack of qte is that you cannot run all the useful X applications that have been developed all over the years.

The major selling point of qt-embedded is to avoid using the X-Server to save memory and disk space on an embedded platform. If you want to use an existing X-Server to run Qt applications then use Qt/X11, not Qt/Embedded.


Chi si occupa dello sviluppo di applicazioni per piccoli schermi, conosce molto bene le difficoltà nel realizzare un software che sia multipiattaforma senza stravolgere diverse parti del codice scritto. Fino a oggi l’unica scelta praticabile era, forse, Java, che con le sue librerie assicurava una qualche forma di portabilità, purtroppo non totale per applicativi che fanno un uso avanzato di grafica, multimedia e funzionalità del “device”. Fino a oggi, dicevo.

Esiste infatti una seconda via, ancora poco conosciuta, ma che secondo me riserva grandi potenzialità: quella di usare le QT Embedded, un potente framework applicativo sviluppato in C++, che attualmente gira su sistemi Windows CE ed embedded Linux. Basta guardare un video per capire cosa sia possibile fare già a partire da adesso.

Sono supportate nativamente funzioni quali l’antialiasing, la gestione del formato SVG, trasformazioni vettoriali, alpha cannel e molto altro.

Per chi si sta chiedendo che tipo di azienda sia questa Trolltech, vi posso dire che le sue librerie QT sono uno standard grafico sotto GNU/Linux, che vengono usate da KDE, che programmi sviluppati con questo framework possono funzionare anche sotto Windows e sotto Mac e che recentemente è stata acquistata dalla Nokia.

idea of kernel 2.4 familiar

http://www.brucalipto.org/linux/linux-su-ipaq

idea of BinaryGentoo

be inspired be this article http://lesinigo.it/BinaryGentoo

irda ppp

Installation

To install IrDA-Utils: emerge -a irda-utils [edit] Start /etc/init.d/irda start

Put device near Ir port and check: cat /proc/net/irda/discovery

If log is not empty everything is OK. [edit] Settings

   * /etc/irda

About stage4

X11

intro

Microwindows is an Open Source project aimed at bringing the features of modern graphical windowing environments to smaller devices and platforms. Microwindows allows applications to be built and tested on the Linux desktop, as well as cross-compiled for the target device.

Microwindows' genesis was with the NanoGUI project, and has now been combined into a single distribution. The Win32 API implementation is known as Microwindows, and the Xlib-like API implementation is known as Nano-X.

Since the WinCE API is mostly a subset of the Win32 API for graphics-related functions, the Microwindows API is also WinCE compatible, and can be used to implement WinCE graphics functions on platforms Microwindows is running on.

What is Microwindows?

Microwindows is an Open Source project that brings some of the features of modern graphical windowing systems to the programming community not wanting or requiring the large disk and ram requirements of higher-end windowing systems like Microsoft Windows or the X Window System. Microwindows does not require any operating system or other graphics system support, as it writes directly to the display hardware, although it runs well on Linux framebuffer systems. Microwindows is designed to be portable, and can run in a wide variety of hardware and software environments. One the of more interesting targets is the emerging market of portable handheld and pocket PC's running Linux, also known as LinuxCE.

What does Microwindows run on?

Microwindows currently runs on 32-bit Linux systems with kernel framebuffer support, or through the popular SVGAlib library. In addition, it has been ported to 16-bit Linux ELKS, and real-mode MSDOS. Microwindows screen drivers for 1, 2, 4, 8, 16 and 32 bits-per-pixel have been written, as well as a VGA 16 color 4 planes driver. Microwindows has been ported to a number of Handheld and Pocket PC's, as well. The Microwindows graphics engine is capable of running on any system that supports readpixel, writepixel, drawhorzline and drawvertline, and setpalette. Blitting support is optional, but if implemented allows enhanced functionality. All bitmap, font, cursor and color support is implemented on top of these routines. Support for 8, 15, 16 and 32 bit truecolor systems as well as 1, 2, 4 and 8bpp palletized systems is implemented.

Recently, an X11 driver was completed that allows Microwindows applications to be run on top of the X Window desktop. This driver emulates all of Microwindows' truecolor and palette modes so that an application can be previewed using the target system's display characteristics directly on the desktop display, regardless of the desktop display characteristics.

What CPU's are supported?

Microwindows is extremely portable, and completely written in C, although some routines have been recoded in assembly for speed. It has been ported to the Intel 16 and 32 bit cpu's, as well as MIPS R4000 (NEC Vr41xx) and ARM chips found on popular handheld and pocket PC's.

How big is Microwindows?

On 16 bit systems, the entire system, including screen, mouse and keyboard drivers runs in less than 64k. On 32-bit systems, support includes proportional fonts and applications are typically less than 100k.

What is Microwindows' architecture and what API's are supported?

Microwindows is essentially a layered design that allows different layers to be used or rewritten to suite the needs of the implementation. At the lowest level, screen, mouse/touchpad and keyboard drivers provide access to the actual display and other user-input hardware. At the mid level, a portable graphics engine is implemented, providing support for line draws, area fills, polygons, clipping and color models. At the upper level, various API's are implemented providing access to the graphics applications programmer. These APIs may or may not provide desktop and/or window look and feel. Currently, Microwindows supports the Win32 and Nano-X APIs. These APIs provide close compatibility with the Win32 and X Window systems, allowing programs to be ported from other systems easily.


fbdev

On my:

links -g -driver fb returns: Could not initialize graphics driver fb: Could not get VT mode

(This one looks to me like stock /etc/fb.modes limitation, like I need to add my mode there. right?)



nano X11 on iPAQ

so the nano-X does not provide X, it's rather a desktop environment


What are Nano-X's graphics features?

Nano-X features full RGB color support, color mapping, optimized palette bitmap drawing, true color and palletized displays, and a 3d look-and-feel. Overlapped and child windows are supported, with complete window and client area clipping. Proportional and fixed fonts are supported, along with utilities for converting fonts or bitmap files. Optimized painting algorithms are used to allow maximum response while the user is moving windows on the screen. Off screen drawing and bit-blit routines are implemented for flicker-free drawing and animation. Polygon draws, fills and arbitrary region clipping are also supported.

so the first right choice seems to be nano-X, that means http://www.microwindows.org, that in my actual branch ... that will be supported by a specific gentoo overlay ... well it has a bit of issues that require me to compile it with the most extremely essential support i can do in order to have it running

IPAQ_KB requires you have the tiny plastic keyboard attached on the back of your iPAQ ... if you have such an extra stuff (you could buy on ebay for 15 euro or less) ... well the software driver has a bit of issue with IPAQ_KB_OPEN, so i am considering to use TTYKBD

TTYKBD uses a very simple ascii-only return values, and won't return function key values correctly. ... on iPAQ it needs the CONSOLE set

The mouse type is setup in the Nano-X configuration file, src/config. The mouse type to be used with Nano-X is set in the config file and the specified mouse driver is then compiled in. Touch panel drivers use the mouse interface with a specific driver. Following are the currently supported mouse types settable in the config file:

  • IPAQMOUSE - touch panel driver for iPAQ/Assabet (mknode /dev/h3600_ts c 11 0)
  • NOMOUSE - no mouse/touch panel in system


/*
 * Microwindows keyboard driver for Compaq iPAQ
 *
 * Copyright (c) 2000, 2003 Century Software Embedded Technologies
 * Written by Jordan Crouse
 */
#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include "device.h"

#define IPAQ_SCANCODE_RECORD    129
#define IPAQ_SCANCODE_CALENDAR  130
#define IPAQ_SCANCODE_CONTACTS 131
#define IPAQ_SCANCODE_Q        132
#define IPAQ_SCANCODE_START    133
#define IPAQ_SCANCODE_UP       134 /* keycode up */
#define IPAQ_SCANCODE_RIGHT    135 /* keycode right */
#define IPAQ_SCANCODE_LEFT     136 /* keycode left */
#define IPAQ_SCANCODE_DOWN     137 /* keycode down */
#define IPAQ_SCANCODE_ACTION   138
#define IPAQ_SCANCODE_SUSPEND  139

#ifdef __ECOS
#define KEYBOARD "/dev/kbd"
#else
#define KEYBOARD "/dev/h3600_key"
#endif

static int  IPAQ_Open(KBDDEVICE *pkd);
static void IPAQ_Close(void);
static void IPAQ_GetModifierInfo(MWKEYMOD *modifiers, MWKEYMOD *curmodifiers);
static int  IPAQ_Read(MWKEY *kbuf, MWKEYMOD *modifiers, MWSCANCODE *scancode);

KBDDEVICE kbddev = {
        IPAQ_Open,
        IPAQ_Close,
        IPAQ_GetModifierInfo,
        IPAQ_Read,
        NULL
};

static int fd;

/* From the kernel - this maps a single index into */
/* the correct scancode */
static unsigned char scancodes[] = {
        0, 			/* unused */
        IPAQ_SCANCODE_RECORD, 	/* 1 -> record button */
        IPAQ_SCANCODE_CALENDAR, /* 2 -> calendar */
        IPAQ_SCANCODE_CONTACTS, /* 3 -> contact */
        IPAQ_SCANCODE_Q, 	/* 4 -> Q button */
        IPAQ_SCANCODE_START, 	/* 5 -> start menu */
        IPAQ_SCANCODE_UP, 	/* 6 -> up */
        IPAQ_SCANCODE_RIGHT, 	/* 7 -> right */
        IPAQ_SCANCODE_LEFT, 	/* 8 -> left */
        IPAQ_SCANCODE_DOWN, 	/* 9 -> down */
        IPAQ_SCANCODE_ACTION, 	/* 10 */
        IPAQ_SCANCODE_SUSPEND
};

static int
IPAQ_Open(KBDDEVICE * pkd)
{
        /* Open the keyboard and get it ready for use */
        fd = open(KEYBOARD, O_RDONLY | O_NONBLOCK);

        if (fd < 0) {
                DPRINTF("%s - Can't open keyboard!\n", __FUNCTION__);
                return -1;
        }

        return fd;
}

static void
IPAQ_Close(void)
{
        close(fd);
        fd = -1;
}

static void
IPAQ_GetModifierInfo(MWKEYMOD * modifiers, MWKEYMOD * curmodifiers)
{
        if (modifiers)
                *modifiers = 0;	/* no modifiers available */
        if (curmodifiers)
                *curmodifiers = 0;
}


static int
IPAQ_Read(MWKEY * kbuf, MWKEYMOD * modifiers, MWSCANCODE * scancode)
{
        int keydown = 0;
        int cc = 0;
        char buf[1];

        cc = read(fd, &buf, 1);

        if (cc < 0) {
                if ((errno != EINTR) && (errno != EAGAIN)
                    && (errno != EINVAL)) {
                        perror("IPAQ KEY");
                        return (-1);
                } else {
                        return (0);
                }
        }
        if (cc == 0)
                return (0);

        /* If the code is less than 127, then we know that */
        /* we have a key down.  Figure out what we've got */

        *modifiers = 0;

        if (*buf < 127) {
                keydown = 1;	/* Key pressed but not released */

                if (*buf > 9)
                        return (0);

                *scancode = scancodes[(int) *buf];
        } else {
                keydown = 2;	/* key released */
                *scancode = *buf;
        }

        switch (*scancode) {
        case IPAQ_SCANCODE_RECORD:
                *kbuf = MWKEY_RECORD;
                break;

        case IPAQ_SCANCODE_CALENDAR:
                *kbuf = MWKEY_APP1;
                break;

        case IPAQ_SCANCODE_CONTACTS:
                *kbuf = MWKEY_APP2;
                break;

        case IPAQ_SCANCODE_Q:
                *kbuf = MWKEY_MENU;
                break;

        case IPAQ_SCANCODE_START:
/*      	*kbuf = MWKEY_LAST;*/
                *kbuf = MWKEY_CANCEL;
                break;

        case IPAQ_SCANCODE_UP:
                *kbuf = MWKEY_UP;
                break;

        case IPAQ_SCANCODE_DOWN:
                *kbuf = MWKEY_DOWN;
                break;

        case IPAQ_SCANCODE_LEFT:
                *kbuf = MWKEY_LEFT;
                break;

        case IPAQ_SCANCODE_RIGHT:
                *kbuf = MWKEY_RIGHT;
                break;

        case IPAQ_SCANCODE_ACTION:
                *kbuf = MWKEY_ENTER;
                break;

        case IPAQ_SCANCODE_SUSPEND:
                *kbuf = MWKEY_SUSPEND;
                break;

        default:
                DPRINTF("Ipaq - Unknown scancode %d\n", *scancode);
                return 0;
        }

        return keydown;
}

All you have to kwnow about The pcmcia

Flameman/pcmcia

About devtools

.....

be inspired

http://www.angstrom-distribution.org/

http://www.hamster.dk/~purple/robot/iBOT/weblog/

Handhelds/PDAs

  1. Familiar (iPAQ)

http://familiar.handhelds.org/ http://freshmeat.net/projects/familiar/ The Familiar Project is composed of a group of loosely knit developers all contributing to creating the next generation of PDA OS. Currently, most development time is geared towards producing a stable, and full featured Linux distribution for the Compaq iPAQ h3600-series of handheld computers, as well as apps to run on top of the distribution. Familiar v0.5.3 was released July 11, 2002. Familiar v0.8.2 was released April 13, 2005. Familiar v0.8.4 was released August 20, 2006.

  1. Gentoo For Zaurus

http://gentooforzaurus.opensistemas.com/ http://www.opensistemas.com/Gentoo_for_Zaurus.715.0.html http://freshmeat.net/projects/gentooforzaurus/ Gentoo For Zaurus is a port of the Gentoo Distribution to the Zaurus PDA, based on Cacko X11 Rom and The Emerde Project. It can be mounted over NFS so no changes to a current configuration are needed. It includes a native gcc environment for ARM, the zgcc-3.3.1 cross compiler for the main PC with distcc configured so that the main PC does the actual compiling, and X11 for testing applications. The first public release was version 0.1.1, dated January 6, 2004. Version 0.2.2 was released February 2, 2004.