reduce code duplication in register settings
instead of
if (ntsc)
<CODE BLOCK>
else
<CODE BLOCK>
use
cfg = (ntsc) ? <chip>configNTSC : <chip>configPAL;
<CODE BLOCK>
in addition change while loops to more readable for loops
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
wait_i2c is only used from easycap_low.c
so remove it from the easycap.h and mark it static
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
convert if (NULL != ptr) to if (ptr)
convert if (NULL == ptr) to if (!ptr)
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
remove uneedet brackets in ifs and switches
drop pointless castings
other small fixes
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
masking return value of usb_control_msg() will mask negative
error values into positive.
Cc: Mike Thomas <rmthomas@sciolus.org>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
NOREADBACK doesn't justify Kconfig option so we use module
paramter for it.
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use regget to reading back what was written to a register.
This required changning size argument to regget signature
On the way remove usless variable casting
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
regget and regset functions are used only from within
easycap_low.c so they can be static
Move the functions to avoid forward declarations
Move GET and SET macro definitions into the c-file
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This has simulated a fault condition of probing for audio capability
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
the underscored types should be used in user space headers only
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
naming variable u8 is confusing since it is also a type name.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
for sake of readability replace #if defined with #ifdef
and #if (!defined with #ifndef
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
place all globals to easycap.h, which is included
by all c-files
easycap_standard: fix declaration vs. definiton conflict
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
easycap_main.c:41:23: warning: symbol 'easycapdc60_dongle' was not declared. Should it be static?
easycap_main.c:49:22: warning: symbol 'easycap_usb_device_id_table' was not declared. Should it be static?
easycap_main.c:69:30: warning: symbol 'easycap_fops' was not declared. Should it be static?
easycap_main.c:82:29: warning: symbol 'easycap_vm_ops' was not declared. Should it be static?
easycap_main.c:87:25: warning: symbol 'easycap_class' was not declared. Should it be static?
easycap_main.c:95:35: warning: symbol 'v4l2_fops' was not declared. Should it be static?
easycap_main.c:5071:1: warning: symbol 'easycap_module_init' was not declared. Should it be static?
easycap_main.c:5101:1: warning: symbol 'easycap_module_exit' was not declared. Should it be static?
easycap_low.c:45:50: warning: symbol 'stk1160configPAL' was not declared. Should it be static?
easycap_low.c:87:28: warning: symbol 'stk1160configNTSC' was not declared. Should it be static?
easycap_low.c:129:50: warning: symbol 'saa7113configPAL' was not declared. Should it be static?
easycap_low.c:187:28: warning: symbol 'saa7113configNTSC' was not declared. Should it be static?
easycap_ioctl.c:915:5: warning: symbol 'adjust_mute' was not declared. Should it be static?
easycap_settings.c:42:31: warning: symbol 'easycap_standard' was not declared. Should it be static?
easycap_settings.c:312:23: warning: symbol 'easycap_format' was not declared. Should it be static?
easycap_settings.c:607:23: warning: symbol 'easycap_control' was not declared. Should it be static?
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
remove \ from the code where C syntex doesnt require it
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
easycap_main.c:34:5: warning: symbol 'easycap_debug' was not declared. Should it be static?
easycap_main.c:36:5: warning: symbol 'easycap_gain' was not declared. Should it be static?
These two variables actually were declared in several places.
The variables are used in several files.
I've fixed "easycap_debug" so it gets declared in one place only and included properly.
For "easycap_gain" made it static and I created added a
->gain member to the easycap struct. This seems cleaner than using a
global variable and later on we may make this controlable via sysfs.
Cc:Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is necessary because some distributions are disabling OSS entirely.
Signed-off-by: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The easycap driver has module parameters (bars, gain, & debug)
with global scope that intrude on the kernel namespace and cause
build problems. Change the names of them to be driver-specific
and make 2 of them static.
drivers/built-in.o:(.bss+0x97c00): multiple definition of `debug'
ld: Warning: size of symbol `debug' changed from 58 in arch/x86/built-in.o to 4 in drivers/built-in.o
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
No locking is required for normal operation of the driver, but locking
is needed to prevent an Oops during some hot-unplugging scenarios. The
BKL is replaced here by mutex locks together with traps to detect null
pointers following asynchronous device disconnection.
Signed-off-by: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
A new module parameter adjusts the gain of the AC'97 audio chip, if
one is present. Attenuation as well as amplification should be possible
according to the datasheet, but attenuation seems not to work yet.
Signed-off-by: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sometimes at startup the video urbs consistently and persistently deliver
bad data, each video frame (not isoc frame) containing an excess of
precisely two bytes. A brute-force cure implemented here is to
repeatedly reinitialize the registers of the SAA7113H chip and the
STK1160 USB bridge until good behaviour is obtained.
Signed-off-by: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In order to allow multiple EasyCAP dongles to operate simultaneously
without mutual interference all static variables have been eliminated
except for a persistent inventory of plugged-in dongles at module level.
Signed-off-by: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The so-called bridger routine has proved unnecessary following general
improvements elsewhere. The explain_() functions were a convenience
during early development, but are unnecessary and inappropriate now.
Signed-off-by: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Upsampling from 8000 Hz mono to 32000 Hz stereo improves audio/video
synchronization when userspace programs adopt default buffering. This
is an experimental feature.
Signed-off-by: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tomas Winkler