Hello,
We are experiencing issues the G45 touch screen controller under Linux. It is producing severe jitter under one access which makes it impossible to use. It also sees contact permanently. From what i understand the controller has a pen detect system and from what i can tell it never sees release. If I ‘cat /dev/input/mouse0’ the output is continuous. I must also state that the jitter is almost totally on one axis.
I am using kernel build 2.6.30 with the 2.6.30-at91-exp.4.patch from the linux4sam.org site and the default build configuration from the site.
My display message is below.
Many thanks
Barry Bridges
Linux version 2.6.30 (ubi-vm@ubuntu-dev) (gcc version 4.3.5 (Buildroot 2010.08) ) #9 Sat Oct 16 23:59:53 BST 2010
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: Atmel AT91SAM9G45-EKES
Memory policy: ECC disabled, Data cache writeback
On node 0 totalpages: 32768
free_area_init_node: node 0, pgdat c0336fe8, node_mem_map c034d000
Normal zone: 256 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 32512 pages, LIFO batch:7
Clocks: CPU 400 MHz, master 133 MHz, main 12.000 MHz
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
Kernel command line: mem=128M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2
NR_IRQS:192
AT91: 160 gpio irqs in 5 banks
PID hash table entries: 512 (order: 9, 2048 bytes)
Console: colour dummy device 80x30
console [ttyS0] enabled
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 128MB = 128MB total
Memory: 126420KB available (2924K code, 229K data, 112K init, 0K highmem)
Calibrating delay loop... 199.47 BogoMIPS (lpj=997376)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 296 bytes
NET: Registered protocol family 16
atmel_tcb: probe of atmel_tcb.0 failed with error -22
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
cfg80211: Calling CRDA to update world regulatory domain
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
NET: Registered protocol family 1
NetWinder Floating Point Emulator V0.97 (double precision)
NTFS driver 2.1.29 [Flags: R/O].
JFFS2 version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
msgmni has been set to 247
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler anticipatory registered (default)
atmel_lcdfb atmel_lcdfb.0: 255KiB frame buffer at 77940000 (mapped at ffa00000)
atmel_lcdfb atmel_lcdfb.0: fb0: Atmel LCDC at 0x00500000 (mapped at c8858000), irq 23
atmel_usart.0: ttyS0 at MMIO 0xfeffee00 (irq = 1) is a ATMEL_SERIAL
atmel_usart.2: ttyS2 at MMIO 0xfff90000 (irq =
is a ATMEL_SERIAL
brd: module loaded
loop: module loaded
Driver 'sd' needs updating - please use bus_type methods
MACB_mii_bus: probed
eth0: Atmel MACB at 0xfffbc000 irq 25 (3a:1f:34:08:54:54)
eth0: attached PHY driver [Davicom DM9161A] (mii_bus:phy_addr=ffffffff:00, irq=-1)
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xaa (Micron NAND 256MiB 1,8V 8-bit)
AT91 NAND: 8-bit, Software ECC
Scanning device for bad blocks
Bad eraseblock 30 at 0x0000003c0000
Bad eraseblock 31 at 0x0000003e0000
Bad eraseblock 1505 at 0x00000bc20000
Bad eraseblock 1506 at 0x00000bc40000
Bad eraseblock 1516 at 0x00000bd80000
Bad eraseblock 1740 at 0x00000d980000
Bad eraseblock 1741 at 0x00000d9a0000
Creating 2 MTD partitions on "atmel_nand":
0x000000000000-0x000004000000 : "Partition 1"
0x000004000000-0x000010000000 : "Partition 2"
atmel_spi atmel_spi.0: Atmel SPI Controller at 0xfffa4000 (irq 14)
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
atmel-ehci atmel-ehci: Atmel EHCI UHP HS
atmel-ehci atmel-ehci: new USB bus registered, assigned bus number 1
atmel-ehci atmel-ehci: irq 22, io mem 0x00800000
atmel-ehci atmel-ehci: USB 2.0 started, EHCI 1.00
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: Atmel EHCI UHP HS
usb usb1: Manufacturer: Linux 2.6.30 ehci_hcd
usb usb1: SerialNumber: atmel-ehci
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
at91_ohci at91_ohci: AT91 OHCI
at91_ohci at91_ohci: new USB bus registered, assigned bus number 2
at91_ohci at91_ohci: irq 22, io mem 0x00700000
usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: AT91 OHCI
usb usb2: Manufacturer: Linux 2.6.30 ohci_hcd
usb usb2: SerialNumber: at91
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
atmel_usba_udc atmel_usba_udc: MMIO registers at 0xfff78000 mapped at c885c000
atmel_usba_udc atmel_usba_udc: FIFO at 0x00600000 mapped at c8900000
mice: PS/2 mouse device common for all mice
input: gpio-keys as /class/input/input0
atmel_tsadcc atmel_tsadcc: Master clock is set at: 133333333 Hz
atmel_tsadcc atmel_tsadcc: Prescaler is set at: 221
input: atmel touch screen controller as /class/input/input1
rtc-at91sam9 at91_rtt.0: rtc core: registered at91_rtt as rtc0
IRQ 1/rtc0: IRQF_DISABLED is not guaranteed on shared IRQs
rtc-at91sam9 at91_rtt.0: rtc0: SET TIME!
i2c-gpio i2c-gpio.0: using pins 52 (SDA) and 53 (SCL)
Registered led device: d8
Registered led device: d6
Registered led device: d7
at_hdmac at_hdmac: Atmel AHB DMA Controller ( cpy slave ), 8 channels
TCP cubic registered
NET: Registered protocol family 17
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
lib80211: common routines for IEEE802.11 drivers
lib80211_crypt: registered algorithm 'NULL'
rtc-at91sam9 at91_rtt.0: hctosys: unable to read the hardware clock
atmel_mci atmel_mci.0: Using dma0chan0 for DMA transfers
atmel_mci atmel_mci.0: Atmel MCI controller at 0xfff80000 irq 11, 1 slots
atmel_mci atmel_mci.1: Using dma0chan1 for DMA transfers
atmel_mci atmel_mci.1: Atmel MCI controller at 0xfffd0000 irq 29, 1 slots
jffs2_scan_inode_node(): CRC failed on node at 0x06baf7f4: Read 0xffffffff, calculated 0x1490a44b
Empty flash at 0x06baf83c ends at 0x06bb0000
VFS: Mounted root (jffs2 filesystem) on device 31:1.
Freeing init memory: 112K
eth0: link up (100/Full)
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