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linux/include/media/lirc_dev.h

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V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] lirc_dev: store cdev in irctl, up maxdevs Store the cdev pointer in struct irctl, allocated dynamically as needed, rather than having a static array. At the same time, recycle some of the saved memory to nudge the maximum number of lirc devices supported up a ways -- its not that uncommon these days, now that we have the rc-core lirc bridge driver, to see a system with at least 4 raw IR receivers. (consider a mythtv backend with several video capture devices and the possible need for IR transmit hardware). Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-27 16:56:50 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] lirc: use kfifo_initialized() on lirc_buffer's fifo We can use kfifo_initialized() to check if the fifo in lirc_buffer is initialized or not. There's no need to have a dedicated fifo status variable in lirc_buffer. [m.chehab@samsung.com: add the same change to lirc_zilog, to avoid breaking compilation of staging drivers] Signed-off-by: Martin Kaiser <martin@kaiser.cx> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-28 18:51:01 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] lirc: use kfifo_initialized() on lirc_buffer's fifo We can use kfifo_initialized() to check if the fifo in lirc_buffer is initialized or not. There's no need to have a dedicated fifo status variable in lirc_buffer. [m.chehab@samsung.com: add the same change to lirc_zilog, to avoid breaking compilation of staging drivers] Signed-off-by: Martin Kaiser <martin@kaiser.cx> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-28 18:51:01 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] DocBook: Convert struct lirc_driver to doc-nano format The struct lirc_driver is already documented, but on some internal format. Convert it to Kernel doc-nano format and add documentation for some additional parameters that are also present at the structure. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-05 13:35:37 -03:00
[media] doc-rst: Fix issues with RC documentation The kernel-doc script is now broken if it doesn't find all exported symbols documented. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-17 09:16:57 -03:00
[media] DocBook: Convert struct lirc_driver to doc-nano format The struct lirc_driver is already documented, but on some internal format. Convert it to Kernel doc-nano format and add documentation for some additional parameters that are also present at the structure. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-05 13:35:37 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] IR/lirc: further ioctl portability fixups >From Joris van Rantwijk <jorispubl@xs4all.nl>: I tested lirc_serial and found that it works fine. Except the LIRC ioctls do not work in my 64-bit-kernel/32-bit-user setup. I added compat_ioctl entries in the drivers to fix this. While doing so, I noticed inconsistencies in the argument type of the LIRC ioctls. All ioctls are declared in lirc.h as having argument type __u32, however there are a few places where the driver calls get_user/put_user with an unsigned long argument. The patch below changes lirc_dev and lirc_serial to use __u32 for all ioctl arguments, and adds compat_ioctl entries. It should probably also be done in the other low-level drivers, but I don't have hardware to test those. I've dropped the .compat_ioctl addition from Joris' original patch, as I swear the non-compat definition should now work for both 32-bit and 64-bit userspace. Technically, I think we still need/want a in getting a reply to you). Reported-by: Joris van Rantwijk <jorispubl@xs4all.nl> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-08 17:24:21 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] IR/lirc: further ioctl portability fixups >From Joris van Rantwijk <jorispubl@xs4all.nl>: I tested lirc_serial and found that it works fine. Except the LIRC ioctls do not work in my 64-bit-kernel/32-bit-user setup. I added compat_ioctl entries in the drivers to fix this. While doing so, I noticed inconsistencies in the argument type of the LIRC ioctls. All ioctls are declared in lirc.h as having argument type __u32, however there are a few places where the driver calls get_user/put_user with an unsigned long argument. The patch below changes lirc_dev and lirc_serial to use __u32 for all ioctl arguments, and adds compat_ioctl entries. It should probably also be done in the other low-level drivers, but I don't have hardware to test those. I've dropped the .compat_ioctl addition from Joris' original patch, as I swear the non-compat definition should now work for both 32-bit and 64-bit userspace. Technically, I think we still need/want a in getting a reply to you). Reported-by: Joris van Rantwijk <jorispubl@xs4all.nl> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-08 17:24:21 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] lirc_dev.h: Make checkpatch happy Remove warnings about bad whitespacing at function struct parameters. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-05 13:50:42 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] lirc_dev.h: Make checkpatch happy Remove warnings about bad whitespacing at function struct parameters. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-05 13:50:42 -03:00
[media] media: lirc: Allow lirc dev to talk to rc device The use case is simple, if any rc device has allowed protocols = RC_TYPE_LIRC and map_name = RC_MAP_LIRC set, the driver open will be never called. The reason for this is, all of the key maps except lirc have some KEYS in there map, so during rc_register_device process these keys are matched against the input drivers and open is performed, so for the case of RC_MAP_EMPTY, a vt/keyboard is matched and the driver open is performed. In case of lirc, there is no match and result is that there is no open performed, however the lirc-dev will go ahead and create a /dev/lirc0 node. Now when lircd/mode2 opens this device, no data is available because the driver was never opened. Other case pointed by Sean Young, As rc device gets opened via the input interface. If the input device is never opened (e.g. embedded with no console) then the rc open is never called and lirc will not work either. So that's another case. lirc_dev seems to have no link with actual rc device w.r.t open/close. This patch adds rc_dev pointer to lirc_driver structure for cases like this, so that it can do the open/close of the real driver in accordance to lircd/mode2 open/close. Without this patch its impossible to open a rc device which has RC_TYPE_LIRC ad RC_MAP_LIRC set. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-07-22 04:23:07 -03:00
[media] lirc: Make struct file_operations pointer const struct file_operations was made const in the drivers, but not in struct lirc_driver: drivers/staging/lirc/lirc_it87.c:365: warning: initialization discards qualifiers from pointer target type drivers/staging/lirc/lirc_parallel.c:571: warning: initialization discards qualifiers from pointer target type drivers/staging/lirc/lirc_serial.c:1073: warning: initialization discards qualifiers from pointer target type drivers/staging/lirc/lirc_sir.c:482: warning: initialization discards qualifiers from pointer target type drivers/staging/lirc/lirc_zilog.c:1284: warning: assignment discards qualifiers from pointer target type Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-30 16:55:07 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
V4L/DVB: lirc: use unlocked_ioctl New code should not rely on the big kernel lock, so use the unlocked_ioctl file operation in lirc. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Jarod Wilson <jarod@redhat.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:43:35 -03:00
[media] lirc_dev: add some __user annotations Sparse complains because there are no __user annotations. drivers/media/rc/lirc_dev.c:156:27: warning: incorrect type in initializer (incompatible argument 2 (different address spaces)) drivers/media/rc/lirc_dev.c:156:27: expected int ( *read )( ... ) drivers/media/rc/lirc_dev.c:156:27: got int ( extern [toplevel] *<noident> )( ... ) Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-11-17 02:13:39 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00
[media] lirc_dev: add some __user annotations Sparse complains because there are no __user annotations. drivers/media/rc/lirc_dev.c:156:27: warning: incorrect type in initializer (incompatible argument 2 (different address spaces)) drivers/media/rc/lirc_dev.c:156:27: expected int ( *read )( ... ) drivers/media/rc/lirc_dev.c:156:27: got int ( extern [toplevel] *<noident> )( ... ) Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-11-17 02:13:39 -03:00
V4L/DVB: IR: add lirc device interface v2: currently unused ioctls are included, but #if 0'd out Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-03 01:06:57 -03:00