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This patch adds another module parameter to glamo-mci which sets the
SD Card clock rate used inbetween powering the card and the completion of
the first bulk transfer. You can set it from kernel commandline like this.
glamo_mci.sd_post_power_clock=1000000
The period between changing the power state and the first bulk transfer
completion is critical because larger SDHC cards take longer to initialize
before they can service the bulk transfer, and the Glamo MMC unit has a
fixed timeout length of a maximum of 4095 x 16 x SD Card clocks. Large
cards like 8GB Sandisk SDHC are not ready before this timeout is used up
at default 16MHz.
Subsequently, the card can handle 16MHz SD Clock and timeout durations
okay.
By default this patch operates the SD Clock at only 1MHz until the first
bulk transfer is completed after each powerup action from the MCI stack. It
also keeps the SD Clock running during this time, and disables the SD Clock
if the card is not present and the MCI stack removes power.
Signed-off-by: Andy Green <andy@openmoko.com>
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I needed the following two changes for g_ether to work with last
week's stable-tracking and no CONFIG_DEBUG_FS. I don't know if
they're related to moko patches, if not I can send them upstream
isntead.
BTW I need to boot off the SD card now because mtd only returns CRC
errors and doesn't mount. Does it work for other people?
Signed-off-by: Andrzej Zaborowski <balrog@zabor.org>
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- pca9632 is a LED driver which will be adopted in gta03.
Signed-off-by: Matt Hsu <matt_hsu@openmoko.org>
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This patch is a work-around solution to correct charging indication logic.
Signed-off-by: Matt Hsu <matt_hsu@openmoko.org>
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This patch allows ESSID with length 1, which were rejected because the
stack assumed iwconfig used a different format in the ioctl's payload.
It also refuses ESSIDs longer than 31 bytes, because there is some
buffer overrun issue buried somewhere else in the stack. In principle,
32 bytes should be fine.
Open issue:
- where is the 32 bytes overrun ?
Signed-off-by: Werner Almesberger <werner@openmoko.org>
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This is purely cosmetic, but annoying.
The ar6k wifi driver does not print a newline after the informational message when disconnecting from an AP. This leads to cluttered dmesg output like the following:
AR6000 disconnected from 00:02:cf:85:c6:08 AR6000 connected event on freq 2412 with bssid 00:02:cf:85:c6:08 listenInterval=100, beaconInterval = 100, beaconIeLen = 0 assocReqLen=27 assocRespLen =22
What is expected, is something like:
AR6000 disconnected from 00:02:cf:85:c6:08
AR6000 connected event on freq 2412 with bssid 00:02:cf:85:c6:08 listenInterval=100, beaconInterval = 100, beaconIeLen = 0 assocReqLen=27 assocRespLen =22
The upside of this is that it gives me a nice simple patch to send in as my first contribution to OpenMoko?.
Cheers
Signed-off-by: mattb <mattb@openmoko-trac.invalid>
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Hi all.
I'm seeing a behavior in my freerunner where light taps on the
touchscreen are not registered as clicks by the kernel even though the
base hardware does report clicking events. I'm seeing the kernel
generate extra "unclick" events in these cases. It looks like in the
driver, an unclick event is processed before the click event, thus
suppressing the click from ever being generated. I'm attaching a patch
that addresses this. I'm now able to type much faster on the matchbox
keyboard, even when using my fingertips instead of fingernails.
Dima
Signed-off-by: Dima Kogan <dkogan@cds.caltech.edu>
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Possible implementation of SD Card corruption workaround reported here
https://docs.openmoko.org/trac/ticket/1802#comment:5
Signed-off-by: Andy Green <andy@openmoko.com>
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Some boots from Qi trigger a symptom from this interesting race -->
[ 2.730000] Unable to handle kernel NULL pointer dereference at virtual address 00000248
[ 2.730000] pgd = c0004000
[ 2.735000] [00000248] *pgd=00000000
[ 2.735000] Internal error: Oops: 5 [#1] PREEMPT
[ 2.735000] Modules linked in:
[ 2.735000] CPU: 0 Not tainted (2.6.24-stable10_0c1587137aaf0ee3-mokodev #1071)
[ 2.735000] PC is at pcf50633_voltage_set+0x1c/0xfc
[ 2.735000] LR is at gta02_glamo_mmc_set_power+0xdc/0x128
[ 2.735000] pc : [<c01df570>] lr : [<c0034324>] psr: 60000013
[ 2.735000] sp : c7c57eb0 ip : c7c57ec8 fp : c7c57ec4
[ 2.735000] r10: c7cfca28 r9 : 00000000 r8 : c7c57f68
[ 2.735000] r7 : c7cfca68 r6 : c7cfcae0 r5 : 00000c80 r4 : 00000000
[ 2.735000] r3 : 00000000 r2 : 00000c80 r1 : 0000000a r0 : 00000c80
[ 2.735000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 2.735000] Control: c000717f Table: 30004000 DAC: 00000017
[ 2.735000] Process kmmcd (pid: 102, stack limit = 0xc7c56268)
[ 2.735000] Stack: (0xc7c57eb0 to 0xc7c58000)
[ 2.735000] 7ea0: c0608c58 00000c80 c7c57edc c7c57ec8
[ 2.735000] 7ec0: c0034324 c01df564 c7cfca28 c7cfc800 c7c57f1c c7c57ee0 c0194de0 c0034258
[ 2.735000] 7ee0: c7c57f34 c7c57ef0 c01e6230 c005de5c 60000013 c7cfca28 c7cfc800 60000013
[ 2.735000] 7f00: c7cfca68 c7c57f68 00000000 c01e6778 c7c57f34 c7c57f20 c01e5d68 c0194da8
[ 2.735000] 7f20: c7cfc800 c7cfca08 c7c57f5c c7c57f38 c01e6810 c01e5cbc c0059278 c7c57f48
[ 2.735000] 7f40: c02d2ba0 00000002 c7c44420 c7c56000 c7c57f9c c7c57f60 c00592e0 c01e6788
[ 2.735000] 7f60: 00000002 c0059278 c0608d74 c04321cc c036e16c 00000000 c7c57fb0 c7c44420
[ 2.735000] 7f80: c7c56000 00000000 00000000 00000000 c7c57fd4 c7c57fa0 c005a068 c00591ec
[ 2.735000] 7fa0: c02d0624 00000000 c7c4c0e0 c005dc2c c7c57fb0 c7c57fb0 00000000 c7c56000
[ 2.735000] 7fc0: c7c44420 c0059f84 c7c57ff4 c7c57fd8 c005db28 c0059f94 00000000 00000000
[ 2.735000] 7fe0: 00000000 00000000 00000000 c7c57ff8 c004b170 c005dad8 ffffffff ffffffff
[ 2.735000] Backtrace:
[ 2.735000] [<c01df554>] (pcf50633_voltage_set+0x0/0xfc) from [<c0034324>] (gta02_glamo_mmc_set_power+0xdc/0x128)
[ 2.735000] r5:00000c80 r4:c0608c58
[ 2.735000] [<c0034248>] (gta02_glamo_mmc_set_power+0x0/0x128) from [<c0194de0>] (glamo_mci_set_ios+0x48/0x254)
[ 2.735000] r5:c7cfc800 r4:c7cfca28
[ 2.735000] [<c0194d98>] (glamo_mci_set_ios+0x0/0x254) from [<c01e5d68>] (mmc_power_up+0xbc/0x100)
[ 2.735000] [<c01e5cac>] (mmc_power_up+0x0/0x100) from [<c01e6810>] (mmc_rescan+0x98/0x1a8)
[ 2.735000] r5:c7cfca08 r4:c7cfc800
[ 2.735000] [<c01e6778>] (mmc_rescan+0x0/0x1a8) from [<c00592e0>] (run_workqueue+0x104/0x208)
[ 2.735000] r6:c7c56000 r5:c7c44420 r4:00000002
[ 2.735000] [<c00591dc>] (run_workqueue+0x0/0x208) from [<c005a068>] (worker_thread+0xe4/0xf8)
[ 2.735000] [<c0059f84>] (worker_thread+0x0/0xf8) from [<c005db28>] (kthread+0x60/0x94)
[ 2.735000] r6:c0059f84 r5:c7c44420 r4:c7c56000
[ 2.735000] [<c005dac8>] (kthread+0x0/0x94) from [<c004b170>] (do_exit+0x0/0x6f4)
[ 2.735000] r6:00000000 r5:00000000 r4:00000000
[ 2.735000] Code: e351000a e1a04000 e1a00002 8a000032 (e5943248)
[ 2.745000] ---[ end trace 123ec1d286354824 ]---
This problem was caused by insufficient timeout waiting for pcf50633 to resume
and broken code to detect timeout exhaustion.
Although I'd like to think it has something to do with mmc resume woes it should make a panic
and subsequent emergency spew on UART2 if that had been the case.
Took the opportunity to move the stuff to show completion of probe to later in the
pcf50633 probe and tighten readiness test.
Signed-off-by: Andy Green <andy@openmoko.com>
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Fix all of the mismatches Andrzej put us on to.
Found-by: Andrzej Zaborowski <balrogg@gmail.com>
Signed-off-by: Andy Green <andy@openmoko.com>
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style cleanups for accel threshold setting patch
Signed-off-by: Andy Green <andy@openmoko.com>
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Hi!
First: Unfortunately, the freerunner currently wakes up immediately on
suspend when the accelerometer IRQ is selected as a wakeup source. I'm
posting this for comments and if someone else wants to have a look at
this problem.
The patch should be safe to apply even though the sleep portion doesn't
work - as long as it's configured it will not disturb anything.
// Simon
--
lis302dl-configure-wakeup-interrupts.patch
From: simon.kagstrom <simon.kagstrom@gmail.com>
First: Unfortunately, the freerunner currently wakes up immediately on
suspend when the accelerometer IRQ is selected as a wakeup source.
Add configuration of wakeup/freefall interrupts through a sysfs
interface. Configuration is done through echoing a value of the
form
X Y Z THRESHOLD DURATION SPEC
to freefall_wakeup_1/2. X, Y and Z are threshold values, given as a
value > 0, < 0 or 0 to specify if an interrupt should be generated for
high or low thresholds or neither (off). THRESHOLD specifies the
threshold that must be exceeded. DURATION specifies the time in
milliseconds for which the acceleration should be measured. SPEC is
either '1' or '0' and specifies if the thresholds should be taken all
together or one at a time ('and' or 'or' mode).
Echoing '0' to the file turns off the interrupts.
Example:
echo "1 1 1 60 60 0" > freefall_wakeup_1 # Turn on x,y,z, 60ms/60 threshold, or-mode
echo "0" > freefall_wakeup_1 # Turn off interrupt
The hardware supports two simulataneous wakeup sources to be configured,
but the freerunner only connects one of the interrupt outputs. The patch
exports both. Similarly, only the "top" accelerometer can be used as a
wake-up source, and it's not possible to generate DATA_READY interrupts
while the wakeup interrupts are active.
Signed-off-by: Simon Kagstrom <simon.kagstrom@gmail.com>
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Subject: [PATCH] [gta02] Disable hardware ECC unless we get instructed to enable it
This is restoring the old behavior in regard to ECC. Even if
hardware ECC was compiled in we didn't use it. Make this a runtime
option. If the bootloader passes hardware_ecc we will enable the
hardware ECC for real.
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Subject: [PATCH] Revert "s3c2440-nand-disable-hwecc.patch"
This reverts commit 1d89da736ed33d3f7c398fb9f8dfddecb7c7c7a9.
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This patch fixes module unloading for the accelerometer (actually module
loading failed before). The two problems were that the interrupt was not
unregistered, and that the device was left in a "strange" state.
Signed-off-by: Simon Kagstrom <simon.kagstrom@gmail.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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We failed to report status of "discharging", instead reporting
"not charging" even if we knew that the charger was not present.
This patch corrects it and reports "discharging" when charger
is absent.
Signed-off-by: Andy Green <andy@openmoko.com>
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This cleans out some random externs in C files that checkpatch does not like
and introduces a couple of .h files to contain them. Plus some other minor
checkpatch style complaints.
Signed-off-by: Andy Green <andy@openmoko.com>
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This patch adds the gta01 backlight callback that defers the
restoring of the backlight until after the jbt driver has
resumed. This doesn't eliminate the flashing of the LCD on
the gta01, but it reduces it considerably.
Signed-off-by: Mike Westerhof <mwester@dls.net>
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This patch is the pcf50606 equivalent of the pcf50633 patch that
disables interrupts from the chip until after resume is complete.
In order to ensure no data is lost, the work function is called
post-resume to process any pending interrupts.
Most of the code was quite literally re-used from Andy Green's
original patch.
Signed-off-by: Mike Westerhof <mwester@dls.net>
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This patch ensures that no console data will go the UART while
the GSM mux is switched to the GSM. This is necessary despite
the code that disables the console due to the fact that the
console resumes before the neo1973_pm_gsm driver, and consoles
always resume in the "on" state.
Signed-off-by: Mike Westerhof <mwester@dls.net>
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gta0x-log-serial-rx-error.patch
This patch causes a KERN_DEBUG message to be printed each time an
error status is read from a UART. This is intended to facilitate
the reporting of more useful problem and bug reports from users
in the field.
Signed-off-by: Mike Westerhof <mwester@dls.net>
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Subject: [PATCH] [ar6k] Build the wireless driver without DEBUG
- Remove DEBUG from the Makefile
- Do not send events through netlink to userspace. We might
need to reevaluate this. But we seem to use wireless_send_event
at the right places.
(SEND_EVENT_TO_APP)
- Do not report debug logs to apps
(REPORT_DEBUG_LOGS_TO_APP)
Signed-Off-By: Holger Freyther <zecke@openmoko.org>
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If the charger was removed, we fell through back to old
hdq-driven code with normally wrong but slightly random
results for charging LED behaviour in that circumstance
This patch makes us use the tracked charger status
callbacks alone if they are defined in the platform
data.
Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Uses bus_create_device_link to correctly create the gllin compat link.
Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
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Allows the direct creation of symlinks on /sys/bus/*/devices. This is needed
for a compat symlink from gta01-pm-gps.0 to neo1973-pm-gps.0 on the Openmoko
Neo1973 GTA01.
Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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This patch gives glamo-mci a concept of a platform-defined
dynamic clock slowing callback. It means that platform code
can associate some completely external state to decide if
we run the SD clock at normal rate or a rate divided by a
module parameter "sd_slow_ratio", which you can set on
kernel commandline like this:
glamo_mci.sd_slow_ratio=8
you can also change it at runtime by
echo 8 > /sys/module/glamo_mci/parameters/sd_slow_ratio
If no platform callback is defined, then no slow mode
is used. If it is defined, then the default division
action is / 8, eg, 16MHz normal -> 2MHz slow mode.
Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Until now we just drove the SD Card at 3.3V all the time. But in
fact we can do better, and use a voltage negotiated with the
SD Card itself.
With the shipping 512MB Sandisk SD Card, 2.7V is negotiated which
gives 1.7dBm reduction in power on all the SD Card lines and should
further reduce GPS perturbation during SD Card usage.
Signed-off-by: Andy Green <andy@openmoko.com>
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We are meant to run SD_CLK a little while after power-on for the SD
Card, but with the no idle clock changes we didn't take care about it.
This makes us sleep a little bit before disabling clock if we just
powered up the SD Card.
Signed-off-by: Andy Green <andy@openmoko.com>
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The MMC stack hands us a timeout calibrated in SD_CLK clocks, but the
Glamo can only deal with up to 65520 clocks of timeout. If the stack
handed us a request bigger than this, it would just wrap and the
timeout we actually used would be way too short.
With this patch if that happens, we use the longest timeout we can,
65520 clocks and give it our best shot.
Signed-off-by: Andy Green <andy@openmoko.com>
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Reported-by: Holger Freyther <zecke@openmoko.org>
We harmlessly repeated PMU platform callbacks about charging state twice.
Clean it up and leave it to pcf50633_charge_enable() to report once.
Also tidies the sequencing so we set current limit before we enable
charger now.
Signed-off-by: Andy Green <andy@openmoko.com>
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Setting the current limit directly and enabling the charger
isn't anyone's business except pcf50633 driver itself, so these
two functions should not be exported and become static.
Signed-off-by: Andy Green <andy@openmoko.com>
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Tests on access to SD Card with Glamo drive level "0" show
that it reduces SD_CLK energy at 1.5GHz by 24dBm compared to
drive level 3. This puts it only 6dB above the background
noise floor compared to 30dB and should make a solution for
GPS trouble with SD Card in.
SD card communication seems unaffected so far on the Sandisk
512MB card we ship.
Signed-off-by: Andy Green <andy@openmoko.com>
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Charger trigger stuff goes and asks for POWER_SUPPLY_PROP_STATUS
to figure out what the charger state is. But until now, we only
reported there what we found out from HDQ, and the HDQ registers
are not updated very often in the coulomb counter, it can be 4
or more second lag before it tells us about what it experiences.
When we react to USB insertion and only after 500ms debounce tell
power_supply stuff that something changed, it most times will
see old pre-USB-insertion state from bq27000 over HDQ at that time
and will report it ain't charging, buggering up the LED trigger
tracking.
This patch maintains distance between bq27000 and pcf50633 by
having platform callbacks in bq27000 that it can use to ask about
definitive charger "online" presence and "activity", whether the
charger says it is charging. If these callbacks are implemented
(and we implement them in this patch up in mach_gta02.c) then
this information is used in preference to what is found from
HDQ.
Result is if you set the LED trigger like this:
echo bat-charging > /sys/devices/platform/gta02-led.0/leds/gta02-aux:red/trigger
then it lights up properly on USB insertion now, goes away on
removal properly, as as far as I saw, when charging stops too.
Signed-off-by: Andy Green <andy@openmoko.com>
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