For example, if I want replace the MOUSE in vbus with TOUCHSCREEN, what should I write to determine the driver of the touchscreen, and the register address of the driver?
It seems the .hid can assign the driver? And the MMio can remap the address of the IO for driver?
2, As for GUI driver, what the mag and fb-drv do ? Should I write one driver in L4RE or I can reuse the driver in Linux?
Also I got some new error when booting. The system mount failed. Would you mind to take a look?
## Starting application at 0x41000000 ...
L4 Bootstrapper
Build: #4 Tue May 5 18:39:47 CST 2015, 4.6.4
Scanning up to 2047 MB RAM, starting at offset 256MB
Memory size is 2047MB (40000000 - bfefffff)
Limiting 'RAM' region [ 40000000, bfefffff] { 7ff00000} to [ 40000000, t
RAM: 0000000040000000 - 00000000bcffffff: 2048000kB
Total RAM: 2000MB
Scanning fiasco
Scanning sigma0
Scanning moe
Moving up to 14 modules behind 41100000
moving module 02 { 4fbec000-4fc255ef } -> { 4fcdb000-4fd145ef } [234992]
moving module 01 { 4fbe2000-4fbeb33b } -> { 4fcd1000-4fcda33b } [37692]
moving module 00 { 4fb7e000-4fbe127f } -> { 4fc6d000-4fcd027f } [406144]
moving module 13 { 41794000-4fb7df5b } -> { 41883000-4fc6cf5b } [238985052]
moving module 12 { 41694000-41793fff } -> { 41783000-41882fff } [1048576]
moving module 11 { 412ca000-41693487 } -> { 413b9000-41782487 } [3970184]
moving module 10 { 412c9000-412c9109 } -> { 413b8000-413b8109 } [266]
moving module 09 { 412c8000-412c84c0 } -> { 413b7000-413b74c0 } [1217]
moving module 08 { 412c7000-412c765e } -> { 413b6000-413b665e } [1631]
moving module 07 { 4129d000-412c65ef } -> { 4138c000-413b55ef } [169456]
moving module 06 { 411ed000-4129cc0f } -> { 412dc000-4138bc0f } [719888]
moving module 05 { 41086000-411ec44f } -> { 41175000-412db44f } [1467472]
moving module 04 { 4102b000-41085bcf } -> { 4111a000-41174bcf } [371664]
moving module 03 { 41011000-4102a427 } -> { 41100000-41119427 } [103464]
Loading fiasco
Loading sigma0
Loading moe
find kernel info page...
found kernel info page at 0x40002000
Regions of list 'regions'
[ 40000000, 40000203] { 204} Root mbi_rt
[ 40001000, 40001c3f] { c40} Kern fiasco
[ 40002000, 40072fff] { 71000} Kern fiasco
[ 40090000, 40096f0b] { 6f0c} Sigma0 sigma0
[ 40098000, 4009e177] { 6178} Sigma0 sigma0
[ 40140000, 40174a53] { 34a54} Root moe
[ 40178000, 4018ef03] { 16f04} Root moe
[ 41000000, 410105f7] { 105f8} Boot bootstrap
[ 41100000, 4fc6cfff] { eb6d000} Root Module
API Version: (87) experimental
Sigma0 config ip:40090100 sp:00000000
Roottask config ip:40140198 sp:00000000
Starting kernel fiasco at 40001360
Hello from Startup::stage2
Per_cpu_data_alloc: (orig: 0xf005ff90-0xf0060990)
Number of IRQs available at this GIC: 160
FPU0: Arch: VFPv4(4), Part: VFPv3(30), r: 0, v: f, i: 41, t: hard, p: dbl/sngl
Watchdog initialized
SERIAL ESC: allocated IRQ 85 for serial uart
Not using serial hack in slow timer handler.
Welcome to Fiasco.OC (arm)!
L4/Fiasco.OC arm microkernel (C) 1998-2013 TU Dresden
Rev: unknown compiled with gcc 4.6.4 for Samsung Exynos []
Build: #1 Tue May 5 16:52:03 CST 2015
Per_cpu_data_alloc: (orig: 0xf005ff90-0xf0060990)
Allocate 2560 bytes (3KB) for CPU[4] local storage (offset=118b070, 0xf11eb000-)
Timer for CPU0 is at IRQ 152
Number of CPUs: 1
Calibrating timer loop... done.
MDB: use page size: 20
MDB: use page size: 12
SIGMA0: Hello!
KIP @ 40002000
allocated 4KB for maintenance structures
SIGMA0: Dump of all resource maps
RAM:------------------------
[4:40000000;40000fff]
[0:40073000;4008ffff]
[0:40097000;40097fff]
[0:4009f000;4013ffff]
[4:40140000;40174fff]
[0:40175000;40177fff]
[4:40178000;4018efff]
[0:4018f000;410fffff]
[4:41100000;4fc6cfff]
[0:4fc6d000;bbffffff]
IOMEM:----------------------
[0:0;3fffffff]
[0:bd000000;ffffffff]
MOE: Hello world
MOE: found 1789720 KByte free memory
MOE: found RAM from 40000000 to bc000000
MOE: allocated 1984 KByte for the page array @0x4018f000
MOE: virtual user address space [0-bfffffff]
MOE: rom name space cap -> [C:501000]
BOOTFS: [41100000-41119428] [C:503000] l4re
BOOTFS: [4111a000-41174bd0] [C:504000] ned
BOOTFS: [41175000-412db450] [C:505000] io
BOOTFS: [412dc000-4138bc10] [C:506000] mag
BOOTFS: [4138c000-413b55f0] [C:507000] fb-drv
BOOTFS: [413b6000-413b665f] [C:508000] l4_gingerbread-arm.cfg
BOOTFS: [413b7000-413b74c1] [C:509000] arm-rv-eb.devs
BOOTFS: [413b8000-413b810a] [C:50a000] l4_android-arm.vbus
BOOTFS: [413b9000-41782488] [C:50b000] vmlinuz.android
BOOTFS: [41783000-41883000] [C:50c000] root-arm-ginger.img
BOOTFS: [41883000-4fc6cf5c] [C:50d000] system-arm-ginger.img
MOE: cmdline: moe rom/l4_gingerbread-arm.cfg
MOE: Starting: rom/ned rom/l4_gingerbread-arm.cfg
MOE: loading 'rom/ned'
Ned says: Hi World!
Ned: loading file: 'rom/l4_gingerbread-arm.cfg'
io | Io service
io | Ready. Waiting for request.
mag | Hello from MAG
fb | Using LCD driver: ARM AMBA PrimeCell 11x
fb | Unknown LCD: periphid = 00000000, cellid = 00000000
fb | Video memory is at virtual 0x5000 (size: 0x96000 Bytes)
fb | Physical video memory is at 0x40654000
fb | Color mode: 10:5:0 5:5:5
fb | Detected a 'Unknown' device.
fb | Configure 3.8 CLCD
fb | Starting server loop
mag | mapped frame buffer at 0x200000
mag | View::Info:
mag | flags: 0
mag | size: 640x480 pos: 0, 0
mag | bytes_per_line: 1280
mag | buffer_offset: 0
mag | RGBA(2): 5(10):5(5):5(0):0(0)
mag | memory 200000-296000
mag | Plugin: Mag_client service started
mag | Plugin: Frame-buffer service started
mag | L4INPUT native mode activated
mag | L4INPUT: !!! W A R N I N G !!!
mag | L4INPUT: Please, do not use Fiasco's "-esc" with L4INPUT.
mag | L4INPUT: !!! W A R N I N G !!!
android | PH 0 (t: 1) offs=00008000 vaddr=02000000 vend=0246e454
android | phys=02000000 ephys=0246e454
android | f_sz=003ab5bc memsz=0046e454 flgs=rwx
android | PH 1 (t: 4) offs=0035ddb8 vaddr=02355db8 vend=02355ddc
android | phys=02355db8 ephys=02355ddc
android | f_sz=00000024 memsz=00000024 flgs=r-x
android | PH 2 (t: 1685382481) offs=00000000 vaddr=00000000 vend=00000000
android | phys=00000000 ephys=00000000
android | f_sz=00000000 memsz=00000000 flgs=rwx
android | Starting binary at 0x2000358, argc=15 argv=0xafff4f6c *argv=0xb1007fed
android | External resolver is at 0xa800070c
android | ======> L4Linux starting... <========
android | Linux version 3.16.0-l4 (shenyouren@Dell-Shen) (gcc version 4.6.x-goo5
android | Binary name: rom/vmlinuz.android
android | This is an AEABI build.
android | Linux kernel command line (14 args): console=ttyLv0 androidboot.conso1
android | CPU mapping (l:p)[1]: 0:0
android | Image: 020000a0 - 02600000 [6143 KiB].
android | Areas: Text: 020000a0 - 02380000 [3583kB] (a bit longer)
android | Data: 02380000 - 023a6fa0 [155kB]
android | Initdata: 02356000 - 0237f900 [166kB]
android | BSS: 023ab5bc - 0246e454 [779kB]
android | Device scan:
android | Device: L4ICU
android | Device scan done.
android | l4lx_thread_create: Created thread 416 (cpu0) (u:b3000e00, v:b3000c00)
android | main thread will be 416
android | l4x_register_pointer_section: addr = 02000000 size = 4648960
android | section-with-init: Virt: 0x2000000 to 0x246e453 [4537 KiB]
android | section-with-init: Phys: 0x407fa000 to 0x40c68453, [4537 KiB]
android | Main thread running, waiting...
android | L4x: Memory size: 256MB
android | L4x: Setting superpages for main memory
android | L4x: Adjusted memory start: 02000000
android | Main memory: Virt: 0x2600000 to 0x125fffff [262144 KiB]
android | Main memory: Phys: 0x4fe00000 to 0x5fdfffff, [262144 KiB]
android | l4x: vmalloc area: 12600000 - 1a600000
android | l4x_register_pointer_section: addr = 02000000 size = 4648960
android | text: Virt: 0x2000000 to 0x246e453 [4537 KiB]
android | text: Phys: 0x407fa000 to 0x40c68453, [4537 KiB]
android | Loading: rom/root-arm-ginger.img
android | INITRD: Size of RAMdisk is 1024KiB
android | RAMdisk from 00002000 to 00102000 [1024KiB]
android | l4lx_thread_create: Created thread 41c (timer0) (u:b3000a00, v:000000)
Booting Linux on physical CPU 0x0
Linux version 3.16.0-l4 (shenyouren@Dell-Shen) (gcc version 4.6.x-google 2012015
CPU: Fiasco [410fc0f4] revision 4 (ARMv7), cr=00000000
CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
Machine: L4
Ignoring unrecognised tag 0x00000000
Forcing write-allocate cache policy for SMP
Forcing shared mappings for SMP
Memory policy: Data cache writealloc
INITRD: 00002000 - 00102000
PERCPU: Embedded 7 pages/cpu @123a0000 s6400 r8192 d14080 u32768
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 66484
Kernel command line: console=ttyLv0 androidboot.console=ttyLv0 mem=256M l4bdds.)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 259556K/268288K available (2687K kernel code, 155K rwdata, 728K rodata,)
Virtual kernel memory layout:
vector : 0xbffff000 - 0xc0000000 ( 4 kB)
fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
vmalloc : 0x12600000 - 0x1a600000 ( 128 MB)
lowmem : 0x00000000 - 0x12600000 ( 294 MB)
modules : Virtual kernel memory layout:
vector : 0xbffff000 - 0xc0000000 ( 4 kB)
fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
vmalloc : 0x12600000 - 0x1a600000 ( 128 MB)
lowmem : 0x00000000 - 0x12600000 ( 294 MB)
moHierarchical RCU implementation.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS:220
l4timer: Using IRQ210
sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2147483648000ns
Console: colour dummy device 80x30
console [ttyLv0] enabled
Calibrating delay loop... 1987.37 BogoMIPS (lpj=9936896)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x2287610 - 0x2287610
Brought up 1 CPUs
SMP: Total of 1 processors activated.
CPU: All CPU(s) started in SVC mode.
VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
Added static device 'L4ICU' with 0 resources.
Failed to create "l4x" debugfs directory: 1
l4vbus: is running
Switched to clocksource l4kipclk
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (junk in compressed archive); looks like an initrd
INITRD: Freeing memory.
l4x: Checks passed.
NetWinder Floating Point Emulator V0.97 (double precision)
futex hash table entries: 256 (order: 2, 16384 bytes)
msgmni has been set to 506
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
l4fb.0: looking for capability 'fb' as goos session
l4fb l4fb.0: 640x480@16 2bypp, size: 614400 @ 200000
l4fb l4fb.0: 5:5:5 10:5:0 linelen=1280 visual=2
l4fb l4fb.0: l4fb L4 frame buffer device (refresh: 10jiffies)
Console: switching to colour frame buffer device 80x30
L4 serial driver
ttyLv0 at MMIO 0x1 (irq = 211, base_baud = 230400) is a L4
l4ser_shm: L4 shared mem serial driver
l4cdds: No name given, not starting.
brd: module loaded
l4bdds: Disk 'rom/system-arm-ginger.img' size = 233384 KB (227 MB) flags=101 ad0
l4bdds0: unknown partition table
[sched_delayed] sched: RT throttling activated
l4bdds: Disk 'rom/system-arm-ginger.img' size = 233384 KB (227 MB) flags=101 ad4
mousedev: PS/2 mouse device common for all mice
TCP: cubic registered
NET: Registered protocol family 17
Registering SWP/SWPB emulation handler
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 1024KiB [1 disk] into ram disk... done.
EXT4-fs (ram0): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (ram0): mounting ext2 file system using the ext4 subsystem
EXT4-fs warning (device ram0): ext4_update_dynamic_rev:701: updating to rev 1 bd
EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)
VFS: Mounted root (ext2 filesystem) on device 1:0.
Freeing unused kernel memory: 164K (02356000 - 0237f000)
init: cannot open '/initlogo.rle'
EXT4-fs (ram0): re-mounted. Opts: (null)
init: Unable to open persistent property directory /data/property errno: 2
init (1): /proc/1/oom_adj is deprecated, please use /proc/1/oom_score_adj inste.
init: cannot find '/system/bin/servicemanager', disabling 'servicemanager'
init: cannot find '/system/bin/vold', disabling 'vold'
init: cannot find '/system/bin/netd', disabling 'netd'
init: cannot find '/system/bin/debuggerd', disabling 'debuggerd'
init: cannot find '/system/bin/rild', disabling 'ril-daemon'
init: cannot find '/system/bin/app_process', disabling 'zygote'
init: cannot find '/system/bin/mediaserver', disabling 'media'
init: cannot find '/system/bin/dbus-daemon', disabling 'dbus'
init: cannot find '/system/bin/installd', disabling 'installd'
init: cannot find '/system/etc/install-recovery.sh', disabling 'flash_recovery'
init: cannot find '/system/bin/keystore', disabling 'keystore'
init: cannot find '/system/bin/sh', disabling 'console'
random: adbd urandom read with 6 bits of entropy available
Thank you very much.