golden hour

/usr/include/linux

File/Folder	Size	Actions
a.out.h	7.15 KB
acct.h	3.58 KB
adb.h	1.05 KB
adfs_fs.h	873 B
affs_hardblocks.h	1.45 KB
agpgart.h	3.83 KB
aio_abi.h	3.18 KB
apm_bios.h	3.46 KB
arcfb.h	150 B
atalk.h	960 B
atm.h	7.64 KB
atm_eni.h	585 B
atm_he.h	343 B
atm_idt77105.h	892 B
atm_nicstar.h	1.19 KB
atm_tcp.h	1.52 KB
atm_zatm.h	1.57 KB
atmapi.h	889 B
atmarp.h	1.2 KB
atmbr2684.h	3.13 KB
atmclip.h	513 B
atmdev.h	7.44 KB
atmioc.h	1.55 KB
atmlec.h	2.26 KB
atmmpc.h	4.07 KB
atmppp.h	576 B
atmsap.h	4.79 KB
atmsvc.h	1.75 KB
audit.h	17.83 KB
auto_fs.h	2.53 KB
auto_fs4.h	4.23 KB
auxvec.h	1.4 KB
ax25.h	2.7 KB
b1lli.h	1.62 KB
baycom.h	820 B
beancounter.h	2.38 KB
bfs_fs.h	1.79 KB
binfmts.h	565 B
blkpg.h	1.56 KB
blktrace_api.h	4.38 KB
bpqether.h	952 B
bsg.h	2.37 KB
bt-bmc.h	508 B
btrfs.h	25.07 KB
byteorder	-
caif	-
can	-
can.h	5.46 KB
capability.h	10.92 KB
capi.h	2.99 KB
cciss_defs.h	3.14 KB
cciss_ioctl.h	2.63 KB
cdrom.h	28.12 KB
cgroupstats.h	2.1 KB
chio.h	5.16 KB
cm4000_cs.h	1.68 KB
cn_proc.h	3.19 KB
coda.h	17.09 KB
coda_psdev.h	720 B
coff.h	12.12 KB
compat.h	9.63 KB
connector.h	2.14 KB
const.h	673 B
cramfs_fs.h	2.68 KB
cuda.h	842 B
cyclades.h	16.65 KB
cycx_cfm.h	2.86 KB
dcbnl.h	24.19 KB
dccp.h	6.22 KB
devlink.h	7.09 KB
dlm.h	2.43 KB
dlm_device.h	2.42 KB
dlm_netlink.h	1.04 KB
dlm_plock.h	831 B
dlmconstants.h	4.9 KB
dm-ioctl.h	10.55 KB
dm-log-userspace.h	14.82 KB
dn.h	4.42 KB
dqblk_xfs.h	8.72 KB
dvb	-
edd.h	5.41 KB
efs_fs_sb.h	2.11 KB
elf-em.h	1.83 KB
elf-fdpic.h	1.04 KB
elf.h	12.63 KB
elfcore.h	2.86 KB
errno.h	23 B
errqueue.h	1.1 KB
ethtool.h	68.76 KB
eventpoll.h	1.76 KB
fadvise.h	855 B
falloc.h	1.98 KB
fanotify.h	3.52 KB
fb.h	16 KB
fcntl.h	2.16 KB
fd.h	11.31 KB
fdreg.h	5.23 KB
fib_rules.h	1.57 KB
fiemap.h	2.65 KB
filter.h	3.53 KB
firewire-cdev.h	42.86 KB
firewire-constants.h	3.16 KB
flat.h	2.04 KB
fou.h	617 B
fs.h	9.84 KB
fsl_hypervisor.h	7.05 KB
fuse.h	16.22 KB
futex.h	4.81 KB
gameport.h	834 B
gen_stats.h	1.48 KB
genetlink.h	1.85 KB
gfs2_ondisk.h	12 KB
gigaset_dev.h	1.35 KB
hdlc	-
hdlc.h	574 B
hdlcdrv.h	2.78 KB
hdreg.h	22.11 KB
hid.h	1.79 KB
hiddev.h	6.13 KB
hidraw.h	1.41 KB
hpet.h	680 B
hsi	-
hw_breakpoint.h	679 B
hyperv.h	10.22 KB
hysdn_if.h	1.29 KB
i2c-dev.h	2.37 KB
i2c.h	6.61 KB
i2o-dev.h	11.22 KB
i8k.h	1.4 KB
icmp.h	2.82 KB
icmpv6.h	3.82 KB
if.h	9.36 KB
if_addr.h	1.7 KB
if_addrlabel.h	658 B
if_alg.h	816 B
if_arcnet.h	3.63 KB
if_arp.h	6.3 KB
if_bonding.h	4.11 KB
if_bridge.h	6.46 KB
if_cablemodem.h	922 B
if_eql.h	1.26 KB
if_ether.h	7.13 KB
if_fc.h	1.63 KB
if_fddi.h	3.6 KB
if_frad.h	2.89 KB
if_hippi.h	4.07 KB
if_infiniband.h	1.13 KB
if_link.h	19.1 KB
if_ltalk.h	147 B
if_macsec.h	5.42 KB
if_packet.h	7.15 KB
if_phonet.h	361 B
if_plip.h	596 B
if_ppp.h	29 B
if_pppol2tp.h	3.18 KB
if_pppox.h	4.64 KB
if_slip.h	809 B
if_team.h	2.48 KB
if_tun.h	3.77 KB
if_tunnel.h	3 KB
if_vlan.h	1.69 KB
if_x25.h	817 B
ife.h	288 B
igmp.h	2.88 KB
in.h	9.15 KB
in6.h	6.99 KB
in_route.h	873 B
inet_diag.h	3.23 KB
inotify.h	3.09 KB
input.h	32.47 KB
ioctl.h	100 B
ip.h	3.47 KB
ip6_tunnel.h	1.67 KB
ip_vs.h	12.71 KB
ipc.h	1.99 KB
ipmi.h	15.8 KB
ipmi_msgdefs.h	4.37 KB
ipsec.h	884 B
ipv6.h	3.25 KB
ipv6_route.h	1.69 KB
ipx.h	1.79 KB
irda.h	7.31 KB
irqnr.h	104 B
isdn	-
isdn.h	5.58 KB
isdn_divertif.h	1.11 KB
isdn_ppp.h	1.82 KB
isdnif.h	2.25 KB
iso_fs.h	6.29 KB
ivtv.h	2.89 KB
ivtvfb.h	1.12 KB
ixjuser.h	24.53 KB
jffs2.h	6.85 KB
joystick.h	3.5 KB
kd.h	6.04 KB
kdev_t.h	320 B
kernel-page-flags.h	767 B
kernel.h	375 B
kernelcapi.h	956 B
kexec.h	1.92 KB
keyboard.h	12.42 KB
keyctl.h	2.98 KB
kvm.h	33.97 KB
kvm_para.h	819 B
l2tp.h	4.98 KB
libc-compat.h	3.44 KB
limits.h	874 B
llc.h	2.98 KB
loop.h	2.31 KB
lp.h	3.72 KB
lwtunnel.h	839 B
magic.h	2.91 KB
major.h	4.48 KB
map_to_7segment.h	7.02 KB
matroxfb.h	1.37 KB
mdio.h	13.74 KB
media.h	3.5 KB
mei.h	4.62 KB
memfd.h	186 B
mempolicy.h	2.35 KB
meye.h	2.41 KB
mii.h	7.76 KB
minix_fs.h	2.01 KB
mman.h	230 B
mmc	-
mmtimer.h	2.01 KB
mpls.h	1.33 KB
mqueue.h	2.01 KB
mroute.h	4.12 KB
mroute6.h	4.08 KB
msdos_fs.h	6.28 KB
msg.h	2.55 KB
mtio.h	7.92 KB
n_r3964.h	2.29 KB
nbd.h	2.34 KB
ncp.h	4.94 KB
ncp_fs.h	3.27 KB
ncp_mount.h	2.06 KB
ncp_no.h	651 B
ndctl.h	8.79 KB
neighbour.h	4.17 KB
net.h	1.97 KB
net_dropmon.h	1.07 KB
net_namespace.h	609 B
net_tstamp.h	4.06 KB
netconf.h	423 B
netdevice.h	1.46 KB
netfilter	-
netfilter.h	1.56 KB
netfilter_arp	-
netfilter_arp.h	380 B
netfilter_bridge	-
netfilter_bridge.h	768 B
netfilter_decnet.h	1.83 KB
netfilter_ipv4	-
netfilter_ipv4.h	2.02 KB
netfilter_ipv6	-
netfilter_ipv6.h	2.04 KB
netlink.h	6.22 KB
netlink_diag.h	1.33 KB
netrom.h	744 B
nfc.h	7.72 KB
nfs.h	4.31 KB
nfs2.h	1.37 KB
nfs3.h	2.24 KB
nfs4.h	5.95 KB
nfs4_mount.h	1.83 KB
nfs_fs.h	1.51 KB
nfs_idmap.h	2.19 KB
nfs_mount.h	2.32 KB
nfsacl.h	605 B
nfsd	-
nl80211.h	226.29 KB
nubus.h	8.17 KB
nvme_ioctl.h	1.55 KB
nvram.h	469 B
omap3isp.h	20.19 KB
omapfb.h	5.72 KB
oom.h	448 B
openvswitch.h	31.79 KB
packet_diag.h	1.5 KB
param.h	78 B
parport.h	3.56 KB
patchkey.h	829 B
pci.h	1.29 KB
pci_regs.h	49.96 KB
perf_event.h	29.53 KB
personality.h	1.99 KB
pfkeyv2.h	9.91 KB
pg.h	2.23 KB
phantom.h	1.55 KB
phonet.h	4.51 KB
pkt_cls.h	11.51 KB
pkt_sched.h	19.75 KB
pktcdvd.h	2.56 KB
pmu.h	5.13 KB
poll.h	22 B
posix_types.h	1.01 KB
ppdev.h	3.07 KB
ppp-comp.h	2.41 KB
ppp-ioctl.h	5.29 KB
ppp_defs.h	4.93 KB
pps.h	4.06 KB
prctl.h	6.71 KB
psample.h	735 B
ptp_clock.h	4.69 KB
ptrace.h	3.2 KB
qnx4_fs.h	2.21 KB
qnxtypes.h	561 B
quota.h	5.78 KB
radeonfb.h	297 B
raid	-
random.h	1.2 KB
raw.h	302 B
rds.h	7.9 KB
reboot.h	1.25 KB
reiserfs_fs.h	712 B
reiserfs_xattr.h	464 B
resource.h	2.09 KB
rfkill.h	3.5 KB
romfs_fs.h	1.15 KB
rose.h	2.12 KB
route.h	2.21 KB
rtc.h	3.85 KB
rtnetlink.h	16.63 KB
scc.h	4.43 KB
sched.h	2.23 KB
screen_info.h	2.36 KB
sctp.h	29.29 KB
sdla.h	2.71 KB
seccomp.h	1.79 KB
securebits.h	2.58 KB
selinux_netlink.h	1.11 KB
sem.h	2.52 KB
serial.h	3.04 KB
serial_core.h	5.11 KB
serial_reg.h	15.66 KB
serio.h	1.77 KB
shm.h	2.17 KB
signal.h	171 B
signalfd.h	1.07 KB
snmp.h	12.38 KB
sock_diag.h	431 B
socket.h	738 B
sockios.h	5.89 KB
som.h	5.35 KB
sonet.h	2.17 KB
sonypi.h	5.12 KB
sound.h	1.15 KB
soundcard.h	44.96 KB
spi	-
stat.h	1 KB
stddef.h	1 B
string.h	175 B
sunrpc	-
suspend_ioctls.h	1.34 KB
swab.h	6.36 KB
synclink.h	8.71 KB
sysctl.h	25.46 KB
sysinfo.h	986 B
target_core_user.h	3.65 KB
taskstats.h	6.83 KB
tc_act	-
tc_ematch	-
tcp.h	5.93 KB
tcp_metrics.h	1.45 KB
telephony.h	8.84 KB
termios.h	443 B
time.h	1.54 KB
times.h	215 B
timex.h	6.17 KB
tiocl.h	1.63 KB
tipc.h	5.44 KB
tipc_config.h	14.1 KB
toshiba.h	1.24 KB
tty.h	1.33 KB
tty_flags.h	3.66 KB
types.h	1.4 KB
udf_fs_i.h	634 B
udp.h	1.28 KB
uhid.h	2.15 KB
uinput.h	5 KB
uio.h	668 B
ultrasound.h	4.39 KB
un.h	239 B
unistd.h	157 B
unix_diag.h	1.1 KB
usb	-
usbdevice_fs.h	6.56 KB
userfaultfd.h	6.59 KB
utime.h	152 B
utsname.h	606 B
uuid.h	1.5 KB
uvcvideo.h	1.6 KB
v4l2-common.h	2.38 KB
v4l2-controls.h	37.34 KB
v4l2-dv-timings.h	25.75 KB
v4l2-mediabus.h	4.55 KB
v4l2-subdev.h	5.27 KB
version.h	255 B
veth.h	402 B
vfio.h	24.12 KB
vhost.h	7.13 KB
videodev2.h	67.41 KB
virtio_9p.h	1.99 KB
virtio_balloon.h	3.71 KB
virtio_blk.h	5.2 KB
virtio_config.h	3.24 KB
virtio_console.h	2.94 KB
virtio_gpu.h	7.84 KB
virtio_ids.h	2.32 KB
virtio_input.h	2.45 KB
virtio_net.h	9.4 KB
virtio_pci.h	6.63 KB
virtio_ring.h	6.18 KB
virtio_rng.h	265 B
virtio_scsi.h	5.13 KB
virtio_types.h	2.11 KB
virtio_vsock.h	3.01 KB
vm_sockets.h	5.13 KB
vsockmon.h	1.78 KB
vt.h	3.05 KB
vtpm_proxy.h	1.62 KB
vzcalluser.h	4.11 KB
vzctl_netstat.h	2.56 KB
vzctl_venet.h	641 B
vzctl_veth.h	758 B
vziptable_defs.h	3.03 KB
vzlist.h	845 B
wait.h	600 B
wanrouter.h	390 B
watchdog.h	2.22 KB
wimax	-
wimax.h	8.17 KB
wireless.h	41.65 KB
x25.h	3.42 KB
xattr.h	2.53 KB
xfrm.h	11 KB

Edit: omap3isp.h

/*
 * omap3isp.h
 *
 * TI OMAP3 ISP - User-space API
 *
 * Copyright (C) 2010 Nokia Corporation
 * Copyright (C) 2009 Texas Instruments, Inc.
 *
 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 *	     Sakari Ailus <sakari.ailus@iki.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

#ifndef OMAP3_ISP_USER_H
#define OMAP3_ISP_USER_H

#include <linux/types.h>
#include <linux/videodev2.h>

/*
 * Private IOCTLs
 *
 * VIDIOC_OMAP3ISP_CCDC_CFG: Set CCDC configuration
 * VIDIOC_OMAP3ISP_PRV_CFG: Set preview engine configuration
 * VIDIOC_OMAP3ISP_AEWB_CFG: Set AEWB module configuration
 * VIDIOC_OMAP3ISP_HIST_CFG: Set histogram module configuration
 * VIDIOC_OMAP3ISP_AF_CFG: Set auto-focus module configuration
 * VIDIOC_OMAP3ISP_STAT_REQ: Read statistics (AEWB/AF/histogram) data
 * VIDIOC_OMAP3ISP_STAT_EN: Enable/disable a statistics module
 */

#define VIDIOC_OMAP3ISP_CCDC_CFG \
	_IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct omap3isp_ccdc_update_config)
#define VIDIOC_OMAP3ISP_PRV_CFG \
	_IOWR('V', BASE_VIDIOC_PRIVATE + 2, struct omap3isp_prev_update_config)
#define VIDIOC_OMAP3ISP_AEWB_CFG \
	_IOWR('V', BASE_VIDIOC_PRIVATE + 3, struct omap3isp_h3a_aewb_config)
#define VIDIOC_OMAP3ISP_HIST_CFG \
	_IOWR('V', BASE_VIDIOC_PRIVATE + 4, struct omap3isp_hist_config)
#define VIDIOC_OMAP3ISP_AF_CFG \
	_IOWR('V', BASE_VIDIOC_PRIVATE + 5, struct omap3isp_h3a_af_config)
#define VIDIOC_OMAP3ISP_STAT_REQ \
	_IOWR('V', BASE_VIDIOC_PRIVATE + 6, struct omap3isp_stat_data)
#define VIDIOC_OMAP3ISP_STAT_EN \
	_IOWR('V', BASE_VIDIOC_PRIVATE + 7, unsigned long)

/*
 * Events
 *
 * V4L2_EVENT_OMAP3ISP_AEWB: AEWB statistics data ready
 * V4L2_EVENT_OMAP3ISP_AF: AF statistics data ready
 * V4L2_EVENT_OMAP3ISP_HIST: Histogram statistics data ready
 */

#define V4L2_EVENT_OMAP3ISP_CLASS	(V4L2_EVENT_PRIVATE_START | 0x100)
#define V4L2_EVENT_OMAP3ISP_AEWB	(V4L2_EVENT_OMAP3ISP_CLASS | 0x1)
#define V4L2_EVENT_OMAP3ISP_AF		(V4L2_EVENT_OMAP3ISP_CLASS | 0x2)
#define V4L2_EVENT_OMAP3ISP_HIST	(V4L2_EVENT_OMAP3ISP_CLASS | 0x3)

struct omap3isp_stat_event_status {
	__u32 frame_number;
	__u16 config_counter;
	__u8 buf_err;
};

/* AE/AWB related structures and flags*/

/* H3A Range Constants */
#define OMAP3ISP_AEWB_MAX_SATURATION_LIM	1023
#define OMAP3ISP_AEWB_MIN_WIN_H			2
#define OMAP3ISP_AEWB_MAX_WIN_H			256
#define OMAP3ISP_AEWB_MIN_WIN_W			6
#define OMAP3ISP_AEWB_MAX_WIN_W			256
#define OMAP3ISP_AEWB_MIN_WINVC			1
#define OMAP3ISP_AEWB_MIN_WINHC			1
#define OMAP3ISP_AEWB_MAX_WINVC			128
#define OMAP3ISP_AEWB_MAX_WINHC			36
#define OMAP3ISP_AEWB_MAX_WINSTART		4095
#define OMAP3ISP_AEWB_MIN_SUB_INC		2
#define OMAP3ISP_AEWB_MAX_SUB_INC		32
#define OMAP3ISP_AEWB_MAX_BUF_SIZE		83600

#define OMAP3ISP_AF_IIRSH_MIN			0
#define OMAP3ISP_AF_IIRSH_MAX			4095
#define OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MIN	1
#define OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MAX	36
#define OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MIN	1
#define OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MAX	128
#define OMAP3ISP_AF_PAXEL_INCREMENT_MIN		2
#define OMAP3ISP_AF_PAXEL_INCREMENT_MAX		32
#define OMAP3ISP_AF_PAXEL_HEIGHT_MIN		2
#define OMAP3ISP_AF_PAXEL_HEIGHT_MAX		256
#define OMAP3ISP_AF_PAXEL_WIDTH_MIN		16
#define OMAP3ISP_AF_PAXEL_WIDTH_MAX		256
#define OMAP3ISP_AF_PAXEL_HZSTART_MIN		1
#define OMAP3ISP_AF_PAXEL_HZSTART_MAX		4095
#define OMAP3ISP_AF_PAXEL_VTSTART_MIN		0
#define OMAP3ISP_AF_PAXEL_VTSTART_MAX		4095
#define OMAP3ISP_AF_THRESHOLD_MAX		255
#define OMAP3ISP_AF_COEF_MAX			4095
#define OMAP3ISP_AF_PAXEL_SIZE			48
#define OMAP3ISP_AF_MAX_BUF_SIZE		221184

/**
 * struct omap3isp_h3a_aewb_config - AE AWB configuration reset values
 * saturation_limit: Saturation limit.
 * @win_height: Window Height. Range 2 - 256, even values only.
 * @win_width: Window Width. Range 6 - 256, even values only.
 * @ver_win_count: Vertical Window Count. Range 1 - 128.
 * @hor_win_count: Horizontal Window Count. Range 1 - 36.
 * @ver_win_start: Vertical Window Start. Range 0 - 4095.
 * @hor_win_start: Horizontal Window Start. Range 0 - 4095.
 * @blk_ver_win_start: Black Vertical Windows Start. Range 0 - 4095.
 * @blk_win_height: Black Window Height. Range 2 - 256, even values only.
 * @subsample_ver_inc: Subsample Vertical points increment Range 2 - 32, even
 *                     values only.
 * @subsample_hor_inc: Subsample Horizontal points increment Range 2 - 32, even
 *                     values only.
 * @alaw_enable: AEW ALAW EN flag.
 */
struct omap3isp_h3a_aewb_config {
	/*
	 * Common fields.
	 * They should be the first ones and must be in the same order as in
	 * ispstat_generic_config struct.
	 */
	__u32 buf_size;
	__u16 config_counter;

/* Private fields */
	__u16 saturation_limit;
	__u16 win_height;
	__u16 win_width;
	__u16 ver_win_count;
	__u16 hor_win_count;
	__u16 ver_win_start;
	__u16 hor_win_start;
	__u16 blk_ver_win_start;
	__u16 blk_win_height;
	__u16 subsample_ver_inc;
	__u16 subsample_hor_inc;
	__u8 alaw_enable;
};

/**
 * struct omap3isp_stat_data - Statistic data sent to or received from user
 * @ts: Timestamp of returned framestats.
 * @buf: Pointer to pass to user.
 * @frame_number: Frame number of requested stats.
 * @cur_frame: Current frame number being processed.
 * @config_counter: Number of the configuration associated with the data.
 */
struct omap3isp_stat_data {
	struct timeval ts;
	void *buf;
	__u32 buf_size;
	__u16 frame_number;
	__u16 cur_frame;
	__u16 config_counter;
};

/* Histogram related structs */

/* Flags for number of bins */
#define OMAP3ISP_HIST_BINS_32		0
#define OMAP3ISP_HIST_BINS_64		1
#define OMAP3ISP_HIST_BINS_128		2
#define OMAP3ISP_HIST_BINS_256		3

/* Number of bins * 4 colors * 4-bytes word */
#define OMAP3ISP_HIST_MEM_SIZE_BINS(n)	((1 << ((n)+5))*4*4)

#define OMAP3ISP_HIST_MEM_SIZE		1024
#define OMAP3ISP_HIST_MIN_REGIONS	1
#define OMAP3ISP_HIST_MAX_REGIONS	4
#define OMAP3ISP_HIST_MAX_WB_GAIN	255
#define OMAP3ISP_HIST_MIN_WB_GAIN	0
#define OMAP3ISP_HIST_MAX_BIT_WIDTH	14
#define OMAP3ISP_HIST_MIN_BIT_WIDTH	8
#define OMAP3ISP_HIST_MAX_WG		4
#define OMAP3ISP_HIST_MAX_BUF_SIZE	4096

/* Source */
#define OMAP3ISP_HIST_SOURCE_CCDC	0
#define OMAP3ISP_HIST_SOURCE_MEM	1

/* CFA pattern */
#define OMAP3ISP_HIST_CFA_BAYER		0
#define OMAP3ISP_HIST_CFA_FOVEONX3	1

struct omap3isp_hist_region {
	__u16 h_start;
	__u16 h_end;
	__u16 v_start;
	__u16 v_end;
};

struct omap3isp_hist_config {
	/*
	 * Common fields.
	 * They should be the first ones and must be in the same order as in
	 * ispstat_generic_config struct.
	 */
	__u32 buf_size;
	__u16 config_counter;

__u8 num_acc_frames;	/* Num of image frames to be processed and
				   accumulated for each histogram frame */
	__u16 hist_bins;	/* number of bins: 32, 64, 128, or 256 */
	__u8 cfa;		/* BAYER or FOVEON X3 */
	__u8 wg[OMAP3ISP_HIST_MAX_WG];	/* White Balance Gain */
	__u8 num_regions;	/* number of regions to be configured */
	struct omap3isp_hist_region region[OMAP3ISP_HIST_MAX_REGIONS];
};

/* Auto Focus related structs */

#define OMAP3ISP_AF_NUM_COEF		11

enum omap3isp_h3a_af_fvmode {
	OMAP3ISP_AF_MODE_SUMMED = 0,
	OMAP3ISP_AF_MODE_PEAK = 1
};

/* Red, Green, and blue pixel location in the AF windows */
enum omap3isp_h3a_af_rgbpos {
	OMAP3ISP_AF_GR_GB_BAYER = 0,	/* GR and GB as Bayer pattern */
	OMAP3ISP_AF_RG_GB_BAYER = 1,	/* RG and GB as Bayer pattern */
	OMAP3ISP_AF_GR_BG_BAYER = 2,	/* GR and BG as Bayer pattern */
	OMAP3ISP_AF_RG_BG_BAYER = 3,	/* RG and BG as Bayer pattern */
	OMAP3ISP_AF_GG_RB_CUSTOM = 4,	/* GG and RB as custom pattern */
	OMAP3ISP_AF_RB_GG_CUSTOM = 5	/* RB and GG as custom pattern */
};

/* Contains the information regarding the Horizontal Median Filter */
struct omap3isp_h3a_af_hmf {
	__u8 enable;	/* Status of Horizontal Median Filter */
	__u8 threshold;	/* Threshold Value for Horizontal Median Filter */
};

/* Contains the information regarding the IIR Filters */
struct omap3isp_h3a_af_iir {
	__u16 h_start;			/* IIR horizontal start */
	__u16 coeff_set0[OMAP3ISP_AF_NUM_COEF];	/* Filter coefficient, set 0 */
	__u16 coeff_set1[OMAP3ISP_AF_NUM_COEF];	/* Filter coefficient, set 1 */
};

/* Contains the information regarding the Paxels Structure in AF Engine */
struct omap3isp_h3a_af_paxel {
	__u16 h_start;	/* Horizontal Start Position */
	__u16 v_start;	/* Vertical Start Position */
	__u8 width;	/* Width of the Paxel */
	__u8 height;	/* Height of the Paxel */
	__u8 h_cnt;	/* Horizontal Count */
	__u8 v_cnt;	/* vertical Count */
	__u8 line_inc;	/* Line Increment */
};

/* Contains the parameters required for hardware set up of AF Engine */
struct omap3isp_h3a_af_config {
	/*
	 * Common fields.
	 * They should be the first ones and must be in the same order as in
	 * ispstat_generic_config struct.
	 */
	__u32 buf_size;
	__u16 config_counter;

struct omap3isp_h3a_af_hmf hmf;		/* HMF configurations */
	struct omap3isp_h3a_af_iir iir;		/* IIR filter configurations */
	struct omap3isp_h3a_af_paxel paxel;	/* Paxel parameters */
	enum omap3isp_h3a_af_rgbpos rgb_pos;	/* RGB Positions */
	enum omap3isp_h3a_af_fvmode fvmode;	/* Accumulator mode */
	__u8 alaw_enable;			/* AF ALAW status */
};

/* ISP CCDC structs */

/* Abstraction layer CCDC configurations */
#define OMAP3ISP_CCDC_ALAW		(1 << 0)
#define OMAP3ISP_CCDC_LPF		(1 << 1)
#define OMAP3ISP_CCDC_BLCLAMP		(1 << 2)
#define OMAP3ISP_CCDC_BCOMP		(1 << 3)
#define OMAP3ISP_CCDC_FPC		(1 << 4)
#define OMAP3ISP_CCDC_CULL		(1 << 5)
#define OMAP3ISP_CCDC_CONFIG_LSC	(1 << 7)
#define OMAP3ISP_CCDC_TBL_LSC		(1 << 8)

#define OMAP3ISP_RGB_MAX		3

/* Enumeration constants for Alaw input width */
enum omap3isp_alaw_ipwidth {
	OMAP3ISP_ALAW_BIT12_3 = 0x3,
	OMAP3ISP_ALAW_BIT11_2 = 0x4,
	OMAP3ISP_ALAW_BIT10_1 = 0x5,
	OMAP3ISP_ALAW_BIT9_0 = 0x6
};

/**
 * struct omap3isp_ccdc_lsc_config - LSC configuration
 * @offset: Table Offset of the gain table.
 * @gain_mode_n: Vertical dimension of a paxel in LSC configuration.
 * @gain_mode_m: Horizontal dimension of a paxel in LSC configuration.
 * @gain_format: Gain table format.
 * @fmtsph: Start pixel horizontal from start of the HS sync pulse.
 * @fmtlnh: Number of pixels in horizontal direction to use for the data
 *          reformatter.
 * @fmtslv: Start line from start of VS sync pulse for the data reformatter.
 * @fmtlnv: Number of lines in vertical direction for the data reformatter.
 * @initial_x: X position, in pixels, of the first active pixel in reference
 *             to the first active paxel. Must be an even number.
 * @initial_y: Y position, in pixels, of the first active pixel in reference
 *             to the first active paxel. Must be an even number.
 * @size: Size of LSC gain table. Filled when loaded from userspace.
 */
struct omap3isp_ccdc_lsc_config {
	__u16 offset;
	__u8 gain_mode_n;
	__u8 gain_mode_m;
	__u8 gain_format;
	__u16 fmtsph;
	__u16 fmtlnh;
	__u16 fmtslv;
	__u16 fmtlnv;
	__u8 initial_x;
	__u8 initial_y;
	__u32 size;
};

/**
 * struct omap3isp_ccdc_bclamp - Optical & Digital black clamp subtract
 * @obgain: Optical black average gain.
 * @obstpixel: Start Pixel w.r.t. HS pulse in Optical black sample.
 * @oblines: Optical Black Sample lines.
 * @oblen: Optical Black Sample Length.
 * @dcsubval: Digital Black Clamp subtract value.
 */
struct omap3isp_ccdc_bclamp {
	__u8 obgain;
	__u8 obstpixel;
	__u8 oblines;
	__u8 oblen;
	__u16 dcsubval;
};

/**
 * struct omap3isp_ccdc_fpc - Faulty Pixels Correction
 * @fpnum: Number of faulty pixels to be corrected in the frame.
 * @fpcaddr: Memory address of the FPC Table
 */
struct omap3isp_ccdc_fpc {
	__u16 fpnum;
	__u32 fpcaddr;
};

/**
 * struct omap3isp_ccdc_blcomp - Black Level Compensation parameters
 * @b_mg: B/Mg pixels. 2's complement. -128 to +127.
 * @gb_g: Gb/G pixels. 2's complement. -128 to +127.
 * @gr_cy: Gr/Cy pixels. 2's complement. -128 to +127.
 * @r_ye: R/Ye pixels. 2's complement. -128 to +127.
 */
struct omap3isp_ccdc_blcomp {
	__u8 b_mg;
	__u8 gb_g;
	__u8 gr_cy;
	__u8 r_ye;
};

/**
 * omap3isp_ccdc_culling - Culling parameters
 * @v_pattern: Vertical culling pattern.
 * @h_odd: Horizontal Culling pattern for odd lines.
 * @h_even: Horizontal Culling pattern for even lines.
 */
struct omap3isp_ccdc_culling {
	__u8 v_pattern;
	__u16 h_odd;
	__u16 h_even;
};

/**
 * omap3isp_ccdc_update_config - CCDC configuration
 * @update: Specifies which CCDC registers should be updated.
 * @flag: Specifies which CCDC functions should be enabled.
 * @alawip: Enable/Disable A-Law compression.
 * @bclamp: Black clamp control register.
 * @blcomp: Black level compensation value for RGrGbB Pixels. 2's complement.
 * @fpc: Number of faulty pixels corrected in the frame, address of FPC table.
 * @cull: Cull control register.
 * @lsc: Pointer to LSC gain table.
 */
struct omap3isp_ccdc_update_config {
	__u16 update;
	__u16 flag;
	enum omap3isp_alaw_ipwidth alawip;
	struct omap3isp_ccdc_bclamp *bclamp;
	struct omap3isp_ccdc_blcomp *blcomp;
	struct omap3isp_ccdc_fpc *fpc;
	struct omap3isp_ccdc_lsc_config *lsc_cfg;
	struct omap3isp_ccdc_culling *cull;
	__u8 *lsc;
};

/* Preview configurations */
#define OMAP3ISP_PREV_LUMAENH		(1 << 0)
#define OMAP3ISP_PREV_INVALAW		(1 << 1)
#define OMAP3ISP_PREV_HRZ_MED		(1 << 2)
#define OMAP3ISP_PREV_CFA		(1 << 3)
#define OMAP3ISP_PREV_CHROMA_SUPP	(1 << 4)
#define OMAP3ISP_PREV_WB		(1 << 5)
#define OMAP3ISP_PREV_BLKADJ		(1 << 6)
#define OMAP3ISP_PREV_RGB2RGB		(1 << 7)
#define OMAP3ISP_PREV_COLOR_CONV	(1 << 8)
#define OMAP3ISP_PREV_YC_LIMIT		(1 << 9)
#define OMAP3ISP_PREV_DEFECT_COR	(1 << 10)
/* Bit 11 was OMAP3ISP_PREV_GAMMABYPASS, now merged with OMAP3ISP_PREV_GAMMA */
#define OMAP3ISP_PREV_DRK_FRM_CAPTURE	(1 << 12)
#define OMAP3ISP_PREV_DRK_FRM_SUBTRACT	(1 << 13)
#define OMAP3ISP_PREV_LENS_SHADING	(1 << 14)
#define OMAP3ISP_PREV_NF		(1 << 15)
#define OMAP3ISP_PREV_GAMMA		(1 << 16)

#define OMAP3ISP_PREV_NF_TBL_SIZE	64
#define OMAP3ISP_PREV_CFA_TBL_SIZE	576
#define OMAP3ISP_PREV_CFA_BLK_SIZE	(OMAP3ISP_PREV_CFA_TBL_SIZE / 4)
#define OMAP3ISP_PREV_GAMMA_TBL_SIZE	1024
#define OMAP3ISP_PREV_YENH_TBL_SIZE	128

#define OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS	4

/**
 * struct omap3isp_prev_hmed - Horizontal Median Filter
 * @odddist: Distance between consecutive pixels of same color in the odd line.
 * @evendist: Distance between consecutive pixels of same color in the even
 *            line.
 * @thres: Horizontal median filter threshold.
 */
struct omap3isp_prev_hmed {
	__u8 odddist;
	__u8 evendist;
	__u8 thres;
};

/*
 * Enumeration for CFA Formats supported by preview
 */
enum omap3isp_cfa_fmt {
	OMAP3ISP_CFAFMT_BAYER,
	OMAP3ISP_CFAFMT_SONYVGA,
	OMAP3ISP_CFAFMT_RGBFOVEON,
	OMAP3ISP_CFAFMT_DNSPL,
	OMAP3ISP_CFAFMT_HONEYCOMB,
	OMAP3ISP_CFAFMT_RRGGBBFOVEON
};

/**
 * struct omap3isp_prev_cfa - CFA Interpolation
 * @format: CFA Format Enum value supported by preview.
 * @gradthrs_vert: CFA Gradient Threshold - Vertical.
 * @gradthrs_horz: CFA Gradient Threshold - Horizontal.
 * @table: Pointer to the CFA table.
 */
struct omap3isp_prev_cfa {
	enum omap3isp_cfa_fmt format;
	__u8 gradthrs_vert;
	__u8 gradthrs_horz;
	__u32 table[4][OMAP3ISP_PREV_CFA_BLK_SIZE];
};

/**
 * struct omap3isp_prev_csup - Chrominance Suppression
 * @gain: Gain.
 * @thres: Threshold.
 * @hypf_en: Flag to enable/disable the High Pass Filter.
 */
struct omap3isp_prev_csup {
	__u8 gain;
	__u8 thres;
	__u8 hypf_en;
};

/**
 * struct omap3isp_prev_wbal - White Balance
 * @dgain: Digital gain (U10Q8).
 * @coef3: White balance gain - COEF 3 (U8Q5).
 * @coef2: White balance gain - COEF 2 (U8Q5).
 * @coef1: White balance gain - COEF 1 (U8Q5).
 * @coef0: White balance gain - COEF 0 (U8Q5).
 */
struct omap3isp_prev_wbal {
	__u16 dgain;
	__u8 coef3;
	__u8 coef2;
	__u8 coef1;
	__u8 coef0;
};

/**
 * struct omap3isp_prev_blkadj - Black Level Adjustment
 * @red: Black level offset adjustment for Red in 2's complement format
 * @green: Black level offset adjustment for Green in 2's complement format
 * @blue: Black level offset adjustment for Blue in 2's complement format
 */
struct omap3isp_prev_blkadj {
	/*Black level offset adjustment for Red in 2's complement format */
	__u8 red;
	/*Black level offset adjustment for Green in 2's complement format */
	__u8 green;
	/* Black level offset adjustment for Blue in 2's complement format */
	__u8 blue;
};

/**
 * struct omap3isp_prev_rgbtorgb - RGB to RGB Blending
 * @matrix: Blending values(S12Q8 format)
 *              [RR] [GR] [BR]
 *              [RG] [GG] [BG]
 *              [RB] [GB] [BB]
 * @offset: Blending offset value for R,G,B in 2's complement integer format.
 */
struct omap3isp_prev_rgbtorgb {
	__u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
	__u16 offset[OMAP3ISP_RGB_MAX];
};

/**
 * struct omap3isp_prev_csc - Color Space Conversion from RGB-YCbYCr
 * @matrix: Color space conversion coefficients(S10Q8)
 *              [CSCRY]  [CSCGY]  [CSCBY]
 *              [CSCRCB] [CSCGCB] [CSCBCB]
 *              [CSCRCR] [CSCGCR] [CSCBCR]
 * @offset: CSC offset values for Y offset, CB offset and CR offset respectively
 */
struct omap3isp_prev_csc {
	__u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
	__s16 offset[OMAP3ISP_RGB_MAX];
};

/**
 * struct omap3isp_prev_yclimit - Y, C Value Limit
 * @minC: Minimum C value
 * @maxC: Maximum C value
 * @minY: Minimum Y value
 * @maxY: Maximum Y value
 */
struct omap3isp_prev_yclimit {
	__u8 minC;
	__u8 maxC;
	__u8 minY;
	__u8 maxY;
};

/**
 * struct omap3isp_prev_dcor - Defect correction
 * @couplet_mode_en: Flag to enable or disable the couplet dc Correction in NF
 * @detect_correct: Thresholds for correction bit 0:10 detect 16:25 correct
 */
struct omap3isp_prev_dcor {
	__u8 couplet_mode_en;
	__u32 detect_correct[OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS];
};

/**
 * struct omap3isp_prev_nf - Noise Filter
 * @spread: Spread value to be used in Noise Filter
 * @table: Pointer to the Noise Filter table
 */
struct omap3isp_prev_nf {
	__u8 spread;
	__u32 table[OMAP3ISP_PREV_NF_TBL_SIZE];
};

/**
 * struct omap3isp_prev_gtables - Gamma correction tables
 * @red: Array for red gamma table.
 * @green: Array for green gamma table.
 * @blue: Array for blue gamma table.
 */
struct omap3isp_prev_gtables {
	__u32 red[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
	__u32 green[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
	__u32 blue[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
};

/**
 * struct omap3isp_prev_luma - Luma enhancement
 * @table: Array for luma enhancement table.
 */
struct omap3isp_prev_luma {
	__u32 table[OMAP3ISP_PREV_YENH_TBL_SIZE];
};

/**
 * struct omap3isp_prev_update_config - Preview engine configuration (user)
 * @update: Specifies which ISP Preview registers should be updated.
 * @flag: Specifies which ISP Preview functions should be enabled.
 * @shading_shift: 3bit value of shift used in shading compensation.
 * @luma: Pointer to luma enhancement structure.
 * @hmed: Pointer to structure containing the odd and even distance.
 *        between the pixels in the image along with the filter threshold.
 * @cfa: Pointer to structure containing the CFA interpolation table, CFA.
 *       format in the image, vertical and horizontal gradient threshold.
 * @csup: Pointer to Structure for Chrominance Suppression coefficients.
 * @wbal: Pointer to structure for White Balance.
 * @blkadj: Pointer to structure for Black Adjustment.
 * @rgb2rgb: Pointer to structure for RGB to RGB Blending.
 * @csc: Pointer to structure for Color Space Conversion from RGB-YCbYCr.
 * @yclimit: Pointer to structure for Y, C Value Limit.
 * @dcor: Pointer to structure for defect correction.
 * @nf: Pointer to structure for Noise Filter
 * @gamma: Pointer to gamma structure.
 */
struct omap3isp_prev_update_config {
	__u32 update;
	__u32 flag;
	__u32 shading_shift;
	struct omap3isp_prev_luma *luma;
	struct omap3isp_prev_hmed *hmed;
	struct omap3isp_prev_cfa *cfa;
	struct omap3isp_prev_csup *csup;
	struct omap3isp_prev_wbal *wbal;
	struct omap3isp_prev_blkadj *blkadj;
	struct omap3isp_prev_rgbtorgb *rgb2rgb;
	struct omap3isp_prev_csc *csc;
	struct omap3isp_prev_yclimit *yclimit;
	struct omap3isp_prev_dcor *dcor;
	struct omap3isp_prev_nf *nf;
	struct omap3isp_prev_gtables *gamma;
};

#endif	/* OMAP3_ISP_USER_H */