Hans Verkuil 10905d70d7 media: media-request: implement media requests ... Add initial media request support: 1) Add MEDIA_IOC_REQUEST_ALLOC ioctl support to media-device.c 2) Add struct media_request to store request objects. 3) Add struct media_request_object to represent a request object. 4) Add MEDIA_REQUEST_IOC_QUEUE/REINIT ioctl support. Basic lifecycle: the application allocates a request, adds objects to it, queues the request, polls until it is completed and can then read the final values of the objects at the time of completion. When it closes the file descriptor the request memory will be freed (actually, when the last user of that request releases the request). Drivers will bind an object to a request (the 'adds objects to it' phase), when MEDIA_REQUEST_IOC_QUEUE is called the request is validated (req_validate op), then queued (the req_queue op). When done with an object it can either be unbound from the request (e.g. when the driver has finished with a vb2 buffer) or marked as completed (e.g. for controls associated with a buffer). When all objects in the request are completed (or unbound), then the request fd will signal an exception (poll). Co-developed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Co-developed-by: Alexandre Courbot <acourbot@chromium.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>		2018-08-31 11:04:51 -04:00
..
accessibility
acpi	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
amba
android	android: binder: Rate-limit debug and userspace triggered err msgs	2018-08-08 11:05:47 +02:00
ata	Merge branch 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2018-08-24 13:20:33 -07:00
atm
auxdisplay	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
base	Driver core patches for 4.19-rc1	2018-08-18 11:44:53 -07:00
bcma
block	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
bluetooth	Bluetooth: mediatek: pass correct size to h4_recv_buf()	2018-08-13 15:59:39 +02:00
bus	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
cdrom
char	RTC for 4.19	2018-08-20 16:30:27 -07:00
clk	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
clocksource	RISC-V Updates for the 4.19 Merge Window	2018-08-19 09:56:38 -07:00
connector
cpufreq	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
cpuidle	More power management updates for 4.19-rc1	2018-08-22 07:42:36 -07:00
crypto	Merge branch 'akpm' (patches from Andrew)	2018-08-23 19:20:12 -07:00
dax	libnvdimm-for-4.19_dax-memory-failure	2018-08-25 18:43:59 -07:00
dca
devfreq	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
dio
dma	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
dma-buf
edac	EDAC: Add missing MEM_LRDDR4 entry in edac_mem_types[]	2018-08-17 15:13:34 +02:00
eisa
extcon
firewire	firewire: use 64-bit time_t based interfaces	2018-08-17 16:20:27 -07:00
firmware	fbdev changes for v4.19:	2018-08-23 15:44:58 -07:00
fmc
fpga
fsi	fsi: sbefifo: Bump max command length	2018-08-08 15:44:47 +10:00
gnss
gpio	- New Drivers	2018-08-20 15:38:44 -07:00
gpu	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2018-08-20 15:59:01 -07:00
hsi
hv
hwmon	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
hwspinlock
hwtracing	drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t	2018-08-23 18:48:43 -07:00
i2c	i2c: don't use any __deprecated handling anymore	2018-08-24 17:26:43 +02:00
ide	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide	2018-08-22 07:40:33 -07:00
idle
iio	treewide: convert ISO_8859-1 text comments to utf-8	2018-08-23 18:48:43 -07:00
infiniband	Second merge window update	2018-08-23 15:34:48 -07:00
input	ARM: 32-bit SoC platform updates	2018-08-23 13:44:43 -07:00
iommu	ARM: SoC: late updates	2018-08-25 14:12:36 -07:00
ipack
irqchip	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-08-26 09:55:28 -07:00
isdn	isdn: Disable IIOCDBGVAR	2018-08-16 12:26:24 -07:00
leds
lightnvm
macintosh	macintosh: therm_windtunnel: drop using attach_adapter	2018-08-24 14:42:42 +02:00
mailbox	mailbox: Add support for i.MX messaging unit	2018-08-15 09:53:07 +05:30
mcb
md	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
media	media: media-request: implement media requests	2018-08-31 11:04:51 -04:00
memory	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
memstick
message
mfd	Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2018-08-21 17:40:46 -07:00
misc	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
mmc	Merge branch 'asoc-4.19' into asoc-next	2018-08-09 14:47:05 +01:00
mtd	This pull request contains updates for both UBI and UBIFS:	2018-08-23 15:58:04 -07:00
mux
net	ARM: 32-bit SoC platform updates	2018-08-23 13:44:43 -07:00
nfc
ntb
nubus
nvdimm	libnvdimm-for-4.19_dax-memory-failure	2018-08-25 18:43:59 -07:00
nvme	Merge branch 'linus/master' into rdma.git for-next	2018-08-16 14:21:29 -06:00
nvmem
of	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2018-08-15 15:04:25 -07:00
opp
oprofile
parisc
parport	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
pci	Merge branch 'akpm' (patches from Andrew)	2018-08-22 12:34:08 -07:00
pcmcia	pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function	2018-08-18 12:30:42 -07:00
perf	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
phy
pinctrl	- New Drivers	2018-08-20 15:38:44 -07:00
platform	platform-drivers-x86 for v4.19-1	2018-08-22 14:14:15 -07:00
pnp
power	treewide: convert ISO_8859-1 text comments to utf-8	2018-08-23 18:48:43 -07:00
powercap
pps
ps3
ptp	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00
pwm	pwm: mediatek: Add MT7628 support	2018-08-20 11:36:07 +02:00
rapidio	drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md	2018-08-22 10:52:51 -07:00
ras
regulator	- New Drivers	2018-08-20 15:38:44 -07:00
remoteproc	remoteproc/davinci: use the reset framework	2018-08-16 17:39:55 -07:00
reset	ARM: SoC: late updates	2018-08-25 14:12:36 -07:00
rpmsg
rtc	RTC for 4.19	2018-08-20 16:30:27 -07:00
s390	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
sbus
scsi	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
sfi
sh
siox
slimbus
sn
soc	ARM: Device-tree updates	2018-08-23 14:02:22 -07:00
soundwire
spi	hwspinlock updates for v4.19	2018-08-18 16:45:27 -07:00
spmi
ssb	ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG	2018-08-09 18:47:47 +03:00
staging	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
target	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
tc
tee	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
thermal	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2018-08-24 13:03:51 -07:00
thunderbolt
tty	powerpc fixes for 4.19 #2	2018-08-24 09:34:23 -07:00
uio	Char/Misc fix for 4.19-rc1	2018-08-19 09:30:44 -07:00
usb	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
uwb
vfio	powerpc updates for 4.19	2018-08-17 11:32:50 -07:00
vhost	virtio, vhost: fixes, tweaks	2018-08-24 08:45:19 -07:00
video	fbdev changes for v4.19:	2018-08-23 15:44:58 -07:00
virt
virtio	virtio, vhost: fixes, tweaks	2018-08-24 08:45:19 -07:00
visorbus
vlynq
vme
w1	power supply and reset changes for the v4.19 series	2018-08-21 18:06:27 -07:00
watchdog	include/linux/compiler*.h: make compiler-*.h mutually exclusive	2018-08-22 17:31:34 -07:00
xen	xen: fixes and cleanups for 4.19-rc1, second round	2018-08-23 14:52:23 -07:00
zorro
Kconfig
Makefile	Char/Misc driver patches for 4.19-rc1	2018-08-18 11:04:51 -07:00