This function is used when the USB video interface is checked by
the subdriver.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For more clearance what the functions actually do,
usb_buffer_alloc() is renamed to usb_alloc_coherent()
usb_buffer_free() is renamed to usb_free_coherent()
They should only be used in code which really needs DMA coherency.
All call sites have been changed accordingly, except for staging
drivers.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Pedro Ribeiro <pedrib@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Handle case of GSPCA=m, INPUT=m when building gspca core;
also handle case of INPUT=n by using stubs.
drivers/media/video/gspca/gspca.c:662: error: implicit declaration of function 'gspca_input_destroy_urb'
drivers/media/video/gspca/gspca.c:668: error: implicit declaration of function 'gspca_input_create_urb'
drivers/media/video/gspca/gspca.c:2284: error: implicit declaration of function 'gspca_input_connect'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It seems that I merged a wrong version of the patch or that
changeset 4d770eeb926d0bc44c0bd68d051d3d2a5568ef41 got mangled somehow:
It were missed the #else to avoid compilation troubles.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
gspca_main: Fix a compile error when CONFIG_INPUT is not set.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2 small changes to input device error handling:
1) Make it fatal when we fail to create an input device (it is either this
or add checks for gspca_dev->input_dev being NULL in a lot of places)
2) Since we allow gspca_input_create_urb() to fail everywhere we call it,
and thus never check its return value, make it void.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Allow use of the gspca core input device creation code by subdrivers which
have non interrupt driven camera buttons.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Some sensors only allow controlling the exposure by changing the clockdiv,
which means that exposure takes pretty large jumps (for example when going
from a div of 1 to 2, the exposure doubles). Use 2 different entries in
the controls array for these 2 different types of exposure (always
disabling one), and;
Add a new autogain algorithm for the coarse exposure case, which normally
changes the gain setting, only touching the exposure setting if the desired
luminance cannot be reached with gain, and after an exposure change once more
first tries gain, etc. Thus avoiding exposure changes, and the resulting
oscilation because of the huge steps these exposure controls take.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Some webcams have many interfaces with the same interface class, so the
previous interface check did not work.
The new code checks if the interface number is zero or the only one.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The USB video interface was checked as having the number zero, but
some webcams have other values. The test is now done on the interface
class which may be either 255 (vendor spec) or 0 (class per interface).
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This flag permits subdrivers to create specific transfer URBs.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When not set, some images could be lost.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- gl860.c:332:15: warning: cast to restricted __le16
- gl860.c:333:15: warning: cast to restricted __le16
- gl860-mi1320.c:348:5: warning: symbol 'mi1320_camera_settings' was not declared. Should it be static?
- gl860-mi2020.c:772:5: warning: symbol 'mi2020_camera_settings' was not declared. Should it be static?
- m5602_ov9650.c:444:7: warning: symbol 'data' shadows an earlier one
- m5602_core.c:84:5: warning: symbol 'm5602_wait_for_i2c' was not declared. Should it be static?
- m5602_core.c:391:6: warning: symbol 'm5602_disconnect' was not declared. Should it be static?
- m5602_s5k4aa.c:530:23: warning: dubious: x | !y
- m5602_s5k4aa.c:575:23: warning: dubious: x | !y
- gspca.c:1196:13: warning: potentially expensive pointer subtraction
- mr97310a.c:70:5: warning: symbol 'force_sensor_type' was not declared. Should it be static?
- ov519.c:2025:4: warning: do-while statement is not a compound statement
- ov519.c:2063:4: warning: do-while statement is not a compound statement
- ov519.c:2089:4: warning: do-while statement is not a compound statement
- ov519.c:1985:34: warning: incorrect type in assignment (different base types)
- sn9c20x.c:1164:5: warning: symbol 'i2c_r1' was not declared. Should it be static?
- sn9c20x.c:1189:5: warning: symbol 'i2c_r2' was not declared. Should it be static?
- sn9c20x.c:2237:27: warning: right shift by bigger than source value
- sn9c20x.c:2237:27: warning: right shift by bigger than source value
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Some drivers support multiple frameintervals (framerates), make gspca able to
enumerate them.
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that the video_device registration is tested using
video_is_registered(), drivers don't need to initialize the
video_device::minor field to -1 anymore.
Remove those unneeded assignments.
[mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix all device drivers to use the new video_device_node_name function.
This also strips kernel log messages from the "/dev/" prefix, has the device
node location is a userspace policy decision unknown to the kernel.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
gspca: Don't resubmit error status URB's when suspending
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The gscpa core was not resubmitting URB's when the URB status was an error,
this means we will loose URB's (potentially all stopping the stream) in
case of sporadic USB issues. I've seen this with an Aiptek stv0680 based
PenCam connected through an USB 2.0 hub.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds support to gspca for the Winbond W9967CF and W9968CF
camera's. This is mostly a port of the existing v4l1 driver to gspca
(making it v4l2). But this also features fixes to the bitbanging i2c code
(send a nack not an ack after reading the last byte of a transfer), which
gets rid of the weird errors which were being seen there, and of
the smbus_refresh() hack to get around these errors.
Also the vstart settings have been tweaked to work with different
frequency filter settings.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* mark struct vm_area_struct::vm_ops as const
* mark vm_ops in AGP code
But leave TTM code alone, something is fishy there with global vm_ops
being used.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This prevents a loop if a permanent error occurs in usb_set_interface().
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- call a new subdriver function 'isoc_init' before chosing the first
alternate setting.
- call a new subdriver function 'isoc_nego' when submitting the URBs failed.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
