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'struct timeval' uses 32-bit representation for seconds which will
overflow in year 2038 and beyond. mISDN/clock.c needs to compute and
store elapsed time in intervals of 125 microseconds. This patch replaces
the usage of 'struct timeval' with 64-bit ktime_t which is y2038 safe.
The patch also replaces do_gettimeofday() (wall-clock time) with
ktime_get() (monotonic time) since we only care about elapsed time here.
Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Suggested-by: Arnd Bergmnann <arnd@arndb.de>
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the FIFO of the card is small, many short messages are queued up to
the upper layers and the userspace. This change allows the applications
to set a minimum datalen they want from the drivers.
Create a common control function to avoid code duplication in each
driver.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With multiple cards is hard to figure out which port caused trouble
int the layer2 routines (e.g. got a timeout).
Now we have the informations in the log output.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For certification test it is very useful to change the layer1
timer3 value on runtime.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To be full preemptiv safe, we cannot handle a L2 timeout in the timer
context itself, we should do all actions via the D-channel thread.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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cleanup patch.
Use new __packed annotation in net/ and include/
(except netfilter)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add support for the Siemens ISAR DSP chip and cards based on it,
including analog modem protocols.
Signed-off-by: Karsten Keil <keil@b1-systems.de>
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This patch make debug printk's KERN_DEBUG and also fix some
codestyle issues.
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add IMHOLD_L1 ioctl.
The feature will be disabled on closing.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch was made by Titus Moldovan and provides IOCTL functions for enabling
and disabling the controller's built in watchdog. The use is optional.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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not registered
daxtar example # modprobe hfcsusb
daxtar example # modprobe mISDN_l1loop
daxtar example # ./misdnportinfo
Found 3 devices
id: 0
Dprotocols: 00000006
Bprotocols: 0000000e
protocol: 0
nrbchan: 2
name: HFC-S_USB.1
id: 1
Dprotocols: 00000006
Bprotocols: 0000000e
protocol: 0
nrbchan: 2
name: mISDN_l1loop.1
id: 2
Dprotocols: 00000006
Bprotocols: 0000000e
protocol: 0
nrbchan: 2
name: mISDN_l1loop.2
daxtar example # rmmod hfcsusb
daxtar example # ./misdnportinfo
Found 2 devices
*Segmentation* *fault*
dmesg:
[ 9914.939718] BUG: unable to handle kernel NULL pointer dereference at 000000d4
[ 9914.939721] IP: [<f8f9f2dd>] :mISDN_core:get_mdevice+0x19/0x22
[ 9914.939729] *pde = 00000000
[ 9914.939732] Oops: 0000 [#14] PREEMPT SMP
[ 9914.939734] Modules linked in: mISDN_l1loop mISDN_core vmnet vmblock vmci vmmon coretemp w83627ehf hwmon_vid rfcomm l2cap blue
tooth usbhid snd_usb_audio snd_usb_lib snd_rawmidi snd_hwdep fuse nvidia(P) uhci_hcd i2c_i801 ehci_hcd snd_hda_intel atl1 usbcore i2c_core parport_seria
l [last unloaded: hfcsusb]
[ 9914.939751] Pid: 29618, comm: misdnportinfo Tainted: P D (2.6.27.3 #5)
[ 9914.939753] EIP: 0060:[<f8f9f2dd>] EFLAGS: 00210246 CPU: 0
[ 9914.939758] EIP is at get_mdevice+0x19/0x22 [mISDN_core]
[ 9914.939760] EAX: 00000000 EBX: f8fa791c ECX: f6afaa58 EDX: f7960cf4
[ 9914.939762] ESI: 80044944 EDI: bfc2e62c EBP: bfc2e62c ESP: f5adbef4
[ 9914.939763] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 9914.939765] Process misdnportinfo (pid: 29618, ti=f5ada000 task=f6bec430 task.ti=f5ada000)
[ 9914.939767] Stack: f8f9f4e0 00000000 f8f9f867 bfc2e62c 0000000a c02461e8 00200246 c042dde8
[ 9914.939771] 00000003 c042dde4 00000000 00000001 00200082 c0114775 00000000 00000000
[ 9914.939775] 00000003 f7088010 00200282 f8fa791c 80044944 bfc2e62c bfc2e62c c02f6615
[ 9914.939780] Call Trace:
[ 9914.939782] [<f8f9f4e0>] _get_mdevice+0x0/0x18 [mISDN_core]
[ 9914.939789] [<f8f9f867>] base_sock_ioctl+0x7a/0x129 [mISDN_core]
[ 9914.939789] [<c02461e8>] opost+0x171/0x182
[ 9914.939789] [<c0114775>] __wake_up+0x29/0x39
[ 9914.939789] [<c02f6615>] sock_ioctl+0x1b5/0x1d9
[ 9914.939789] [<c02f6460>] sock_ioctl+0x0/0x1d9
[ 9914.939789] [<c016794c>] vfs_ioctl+0x1c/0x5d
[ 9914.939789] [<c0167bcb>] do_vfs_ioctl+0x23e/0x24e
[ 9914.939789] [<c0167c07>] sys_ioctl+0x2c/0x45
[ 9914.939789] [<c0102cbd>] sysenter_do_call+0x12/0x21
[ 9914.939789] [<c0350000>] pci_fixup_i450gx+0x4e/0x56
[ 9914.939789] =======================
[ 9914.939789] Code: 00 68 02 f0 f9 f8 e8 ae b4 2c c7 8b 44 24 04 5a 59 c3 83 ec 04 31 d2 89 04 24 89 e1 b8 ac df fa f8 68 e0 f4
f9 f8 e8 4a b5 2c c7 <8b> 80 d4 00 00 00 5a 59 c3 53 89 cb 8d 90 9c 00 00 00 89 c8 e8
[ 9914.939789] EIP: [<f8f9f2dd>] get_mdevice+0x19/0x22 [mISDN_core] SS:ESP 0068:f5adbef4
[ 9914.939858] ---[ end trace 50e18a715b019424 ]---
Signed-off-by: Martin Bachem <m.bachem@gmx.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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MPH_INFORMATION provides full D- and B-Channel status overview
- new layer1 primitive: MPF_INFORMATON_REQ
- layer1 replies with MPH_INFORMATION_IND containing
- dch->[state,Flags,nrbchan]
- bch[]->[protocol,Flags]
- hardware driver should send MPH_INFORMATION_IND
on all ph state changes and BChannel state changes to MISDN_ID_ANY
Signed-off-by: Martin Bachem <m.bachem@gmx.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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Create /sys/class/mISDN and implement functions to handle
device renames.
Signed-Off-By: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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Added GETPEER operation.
Socket now checks if device is already busy at a differen mode.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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- new layer1 protocols for UP0 bus
- helper #defines to test for TE/NT/S0/E1/UP0
Signed-off-by: Martin Bachem <m.bachem@gmx.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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Add ISDN sample clock API to mISDN core (new file clock.c)
hfcmulti and mISDNdsp use clock API.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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New prim PH_DATA_E_IND.
- all E-ch frames are indicated by recv_Echannel(), which pushes E-Channel
frames into dch's rqueue
- if dchannel is opened with channel nr 0, no E-Channel logging
is requested
- if dchannel is opened with channel nr 1, E-Channel logging
is requested. if layer1 does not support that, -EINVAL
in return is appropriate
Signed-off-by: Martin Bachem <m.bachem@gmx.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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struct device already has a 'name' member, use it.
Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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To get persistent device names with hotplug we need to rename devices
sometime.
Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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This prevents underrun of fifo when filled and in case of an underrun it
prevents subsequent underruns due to jitter.
Improve dsp, so buffers are kept filled with a certain delay, so moderate
jitter will not cause underrun all the time -> the audio quality is highly
improved. tones are not interrupted by gaps anymore, except when CPU is
stalling or in high load.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
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The channelmap should have the same size on 32 and 64 bit systems
and should not depend on endianess.
Thanks to David Woodhouse for spotting this.
Signed-off-by: Karsten Keil <kkeil@suse.de>
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Add mISDN core files
Signed-off-by: Karsten Keil <kkeil@suse.de>
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