golden hour

/usr/include/linux

File/Folder	Size	Actions
a.out.h	6.73 KB
acct.h	3.82 KB
acrn.h	16.29 KB
adb.h	1.11 KB
adfs_fs.h	993 B
affs_hardblocks.h	1.54 KB
agpgart.h	3.85 KB
aio_abi.h	3.32 KB
am437x-vpfe.h	3.59 KB
android	-
apm_bios.h	3.6 KB
arcfb.h	213 B
arm_sdei.h	2.69 KB
aspeed-lpc-ctrl.h	1.74 KB
aspeed-p2a-ctrl.h	1.86 KB
atalk.h	1023 B
atm.h	7.7 KB
atm_eni.h	648 B
atm_he.h	406 B
atm_idt77105.h	955 B
atm_nicstar.h	1.25 KB
atm_tcp.h	1.58 KB
atm_zatm.h	1.5 KB
atmapi.h	952 B
atmarp.h	1.27 KB
atmbr2684.h	3.19 KB
atmclip.h	576 B
atmdev.h	7.5 KB
atmioc.h	1.61 KB
atmlec.h	2.33 KB
atmmpc.h	4.13 KB
atmppp.h	639 B
atmsap.h	4.85 KB
atmsvc.h	1.81 KB
audit.h	21.06 KB
auto_dev-ioctl.h	4.87 KB
auto_fs.h	6.28 KB
auto_fs4.h	451 B
auxvec.h	1.56 KB
ax25.h	2.76 KB
batadv_packet.h	19.87 KB
batman_adv.h	16.49 KB
baycom.h	883 B
bcm933xx_hcs.h	419 B
bfs_fs.h	1.86 KB
binfmts.h	776 B
bits.h	447 B
blkpg.h	904 B
blktrace_api.h	4.59 KB
blkzoned.h	6.34 KB
bpf.h	272.11 KB
bpf_common.h	1.33 KB
bpf_perf_event.h	529 B
bpfilter.h	465 B
bpqether.h	981 B
bsg.h	2.44 KB
bt-bmc.h	572 B
btf.h	5.46 KB
btrfs.h	29.85 KB
btrfs_tree.h	25.22 KB
byteorder	-
cachefiles.h	1.61 KB
caif	-
can	-
can.h	11.03 KB
capability.h	13.17 KB
capi.h	3.05 KB
cciss_defs.h	3.2 KB
cciss_ioctl.h	2.7 KB
ccs.h	767 B
cdrom.h	28.87 KB
cec-funcs.h	53.14 KB
cec.h	40.47 KB
cfm_bridge.h	1.42 KB
cgroupstats.h	2.17 KB
chio.h	5.16 KB
cifs	-
close_range.h	377 B
cm4000_cs.h	1.76 KB
cn_proc.h	4.05 KB
coda.h	17.79 KB
coff.h	12.25 KB
connector.h	2.2 KB
const.h	987 B
coresight-stm.h	747 B
cramfs_fs.h	3.47 KB
cryptouser.h	5.2 KB
cuda.h	905 B
cxl_mem.h	7.73 KB
cycx_cfm.h	2.92 KB
dcbnl.h	24.7 KB
dccp.h	6.29 KB
devlink.h	22.3 KB
dlm.h	2.49 KB
dlm_device.h	2.48 KB
dlm_netlink.h	1.13 KB
dlm_plock.h	894 B
dlmconstants.h	4.96 KB
dm-ioctl.h	11.48 KB
dm-log-userspace.h	14.83 KB
dma-buf.h	5.12 KB
dma-heap.h	1.36 KB
dn.h	4.53 KB
dns_resolver.h	3.86 KB
dpll.h	7.19 KB
dqblk_xfs.h	9.17 KB
dvb	-
edd.h	5.47 KB
efs_fs_sb.h	2.17 KB
elf-em.h	2.57 KB
elf-fdpic.h	1.1 KB
elf.h	14.69 KB
errno.h	23 B
errqueue.h	1.94 KB
erspan.h	1.03 KB
ethtool.h	100.09 KB
ethtool_netlink.h	29.87 KB
eventfd.h	264 B
eventpoll.h	2.84 KB
f2fs.h	3.22 KB
fadvise.h	842 B
falloc.h	3.5 KB
fanotify.h	6.64 KB
fb.h	16.09 KB
fcntl.h	4.22 KB
fd.h	11.83 KB
fdreg.h	5.24 KB
fib_rules.h	1.99 KB
fiemap.h	2.71 KB
filter.h	2.16 KB
firewire-cdev.h	43.2 KB
firewire-constants.h	3.16 KB
fou.h	819 B
fpga-dfl.h	8.52 KB
fs.h	12.88 KB
fscrypt.h	6.41 KB
fsi.h	2.2 KB
fsl_hypervisor.h	7.13 KB
fsl_mc.h	734 B
fsmap.h	4.29 KB
fsverity.h	3.11 KB
fuse.h	25.36 KB
futex.h	5.98 KB
gameport.h	897 B
gen_stats.h	1.49 KB
genetlink.h	2.19 KB
genwqe	-
gfs2_ondisk.h	14.43 KB
gpio.h	19.46 KB
gsmmux.h	4.4 KB
gtp.h	734 B
handshake.h	1.61 KB
hash_info.h	971 B
hdlc	-
hdlc.h	637 B
hdlcdrv.h	2.84 KB
hdreg.h	22.17 KB
hid.h	2.04 KB
hiddev.h	6.2 KB
hidraw.h	1.95 KB
hpet.h	743 B
hsi	-
hsr_netlink.h	1.08 KB
hw_breakpoint.h	742 B
hyperv.h	10.89 KB
i2c-dev.h	1.83 KB
i2c.h	6.73 KB
i2o-dev.h	11.28 KB
i8k.h	1.49 KB
icmp.h	4.67 KB
icmpv6.h	4.2 KB
idxd.h	9.11 KB
if.h	10.67 KB
if_addr.h	1.84 KB
if_addrlabel.h	721 B
if_alg.h	1.53 KB
if_arcnet.h	3.63 KB
if_arp.h	6.41 KB
if_bonding.h	5.02 KB
if_bridge.h	20.18 KB
if_cablemodem.h	986 B
if_eql.h	1.32 KB
if_ether.h	8.21 KB
if_fc.h	1.7 KB
if_fddi.h	4.27 KB
if_hippi.h	4.14 KB
if_infiniband.h	1.22 KB
if_link.h	52.83 KB
if_ltalk.h	210 B
if_macsec.h	6.35 KB
if_packet.h	7.99 KB
if_phonet.h	424 B
if_plip.h	660 B
if_ppp.h	29 B
if_pppol2tp.h	3.23 KB
if_pppox.h	4.76 KB
if_slip.h	872 B
if_team.h	2.54 KB
if_tun.h	4 KB
if_tunnel.h	5.36 KB
if_vlan.h	1.79 KB
if_x25.h	881 B
if_xdp.h	4.89 KB
ife.h	351 B
igmp.h	2.99 KB
iio	-
ila.h	1.22 KB
in.h	10.15 KB
in6.h	7.36 KB
in_route.h	936 B
inet_diag.h	4.9 KB
inotify.h	3.21 KB
input-event-codes.h	29.5 KB
input.h	15.84 KB
io_uring.h	20.4 KB
ioctl.h	163 B
iommufd.h	28.39 KB
ioprio.h	4.08 KB
ip.h	4.7 KB
ip6_tunnel.h	1.91 KB
ip_vs.h	13.8 KB
ipc.h	2.05 KB
ipmi.h	15.08 KB
ipmi_bmc.h	488 B
ipmi_msgdefs.h	3.35 KB
ipmi_ssif_bmc.h	441 B
ipsec.h	947 B
ipv6.h	4.07 KB
ipv6_route.h	1.86 KB
ipx.h	2.29 KB
irqnr.h	104 B
isdn	-
iso_fs.h	6.33 KB
isst_if.h	14.92 KB
ivtv.h	2.95 KB
ivtvfb.h	1.18 KB
jffs2.h	6.66 KB
joystick.h	3.35 KB
kcm.h	822 B
kcmp.h	522 B
kcov.h	1.92 KB
kd.h	6.3 KB
kdev_t.h	383 B
kernel-page-flags.h	900 B
kernel.h	194 B
kernelcapi.h	1019 B
kexec.h	2.05 KB
keyboard.h	13.14 KB
keyctl.h	5.86 KB
kfd_ioctl.h	56.75 KB
kfd_sysfs.h	5.1 KB
kvm.h	46.76 KB
kvm_para.h	1001 B
l2tp.h	5.61 KB
landlock.h	10.14 KB
libc-compat.h	8.09 KB
limits.h	937 B
lirc.h	7.95 KB
llc.h	3.09 KB
loadpin.h	834 B
loop.h	3.32 KB
lp.h	4.09 KB
lsm.h	1.51 KB
lwtunnel.h	2.31 KB
magic.h	3.73 KB
major.h	4.55 KB
map_to_7segment.h	6.45 KB
matroxfb.h	1.43 KB
max2175.h	1.01 KB
mdio.h	23.78 KB
media-bus-format.h	6.75 KB
media.h	12.46 KB
mei.h	3.4 KB
mei_uuid.h	738 B
membarrier.h	9.14 KB
memfd.h	1.43 KB
mempolicy.h	2.51 KB
meye.h	2.47 KB
mii.h	9.27 KB
minix_fs.h	2.07 KB
misc	-
mman.h	1.75 KB
mmc	-
mmtimer.h	2.07 KB
module.h	293 B
mount.h	4.9 KB
mpls.h	2.25 KB
mpls_iptunnel.h	761 B
mptcp.h	3.67 KB
mptcp_pm.h	4.3 KB
mqueue.h	2.15 KB
mroute.h	5.78 KB
mroute6.h	4.81 KB
mrp_bridge.h	1.67 KB
msdos_fs.h	6.57 KB
msg.h	3.31 KB
mtio.h	7.98 KB
nbd-netlink.h	2.35 KB
nbd.h	3.77 KB
ncsi.h	4.71 KB
ndctl.h	6.67 KB
neighbour.h	5.91 KB
net.h	2.04 KB
net_dropmon.h	2.85 KB
net_namespace.h	715 B
net_tstamp.h	5.97 KB
netconf.h	614 B
netdev.h	5.39 KB
netdevice.h	2.2 KB
netfilter	-
netfilter.h	1.69 KB
netfilter_arp	-
netfilter_arp.h	445 B
netfilter_bridge	-
netfilter_bridge.h	1.14 KB
netfilter_decnet.h	1.72 KB
netfilter_ipv4	-
netfilter_ipv4.h	1.45 KB
netfilter_ipv6	-
netfilter_ipv6.h	1.35 KB
netlink.h	12.09 KB
netlink_diag.h	1.49 KB
netrom.h	807 B
nexthop.h	3.97 KB
nfc.h	10.95 KB
nfs.h	4.36 KB
nfs2.h	1.43 KB
nfs3.h	2.4 KB
nfs4.h	6.54 KB
nfs4_mount.h	1.89 KB
nfs_fs.h	1.62 KB
nfs_idmap.h	2.19 KB
nfs_mount.h	2.09 KB
nfsacl.h	718 B
nfsd	-
nfsd_netlink.h	1.95 KB
nilfs2_api.h	7.41 KB
nilfs2_ondisk.h	17.66 KB
nitro_enclaves.h	12.85 KB
nl80211.h	338.95 KB
nsfs.h	639 B
nubus.h	8 KB
nvme_ioctl.h	2.43 KB
nvram.h	532 B
omap3isp.h	20.36 KB
omapfb.h	5.78 KB
oom.h	511 B
openat2.h	1.42 KB
openvswitch.h	40.41 KB
packet_diag.h	1.63 KB
param.h	141 B
parport.h	3.56 KB
patchkey.h	892 B
pci.h	1.35 KB
pci_regs.h	60.58 KB
pcitest.h	920 B
perf_event.h	42.43 KB
personality.h	2.05 KB
pfkeyv2.h	10.32 KB
pfrut.h	7.8 KB
pg.h	2.34 KB
phantom.h	1.62 KB
phonet.h	4.57 KB
pidfd.h	256 B
pkt_cls.h	18.65 KB
pkt_sched.h	28.66 KB
pktcdvd.h	2.63 KB
pmu.h	5.32 KB
poll.h	22 B
posix_acl.h	1.22 KB
posix_acl_xattr.h	1.09 KB
posix_types.h	1.07 KB
ppdev.h	3.21 KB
ppp-comp.h	2.47 KB
ppp-ioctl.h	5.59 KB
ppp_defs.h	5.43 KB
pps.h	4.62 KB
pr.h	1.59 KB
prctl.h	10.81 KB
psample.h	2.57 KB
psci.h	5.02 KB
psp-dbc.h	5.16 KB
psp-sev.h	6.26 KB
ptp_clock.h	7.35 KB
ptrace.h	4.29 KB
qemu_fw_cfg.h	2.41 KB
qnx4_fs.h	2.27 KB
qnxtypes.h	624 B
qrtr.h	893 B
quota.h	6.16 KB
radeonfb.h	360 B
raid	-
random.h	1.38 KB
rds.h	10.91 KB
reboot.h	1.31 KB
reiserfs_fs.h	775 B
reiserfs_xattr.h	533 B
remoteproc_cdev.h	1.08 KB
resource.h	2.32 KB
rfkill.h	6.45 KB
rio_cm_cdev.h	3.17 KB
rio_mport_cdev.h	9.11 KB
rkisp1-config.h	30.63 KB
romfs_fs.h	1.21 KB
rose.h	2.18 KB
route.h	2.28 KB
rpl.h	814 B
rpl_iptunnel.h	424 B
rpmsg.h	1.03 KB
rpmsg_types.h	288 B
rseq.h	4.79 KB
rtc.h	5.19 KB
rtnetlink.h	20.8 KB
rxrpc.h	4.81 KB
scc.h	4.52 KB
sched	-
sched.h	6.12 KB
scif_ioctl.h	6.23 KB
screen_info.h	2.42 KB
sctp.h	35.18 KB
seccomp.h	5.6 KB
securebits.h	2.64 KB
sed-opal.h	5.29 KB
seg6.h	1.14 KB
seg6_genl.h	589 B
seg6_hmac.h	423 B
seg6_iptunnel.h	984 B
seg6_local.h	3.78 KB
selinux_netlink.h	1.17 KB
sem.h	2.98 KB
serial.h	4.9 KB
serial_core.h	4.93 KB
serial_reg.h	15.65 KB
serio.h	2.09 KB
sev-guest.h	2.47 KB
shm.h	3.71 KB
signal.h	388 B
signalfd.h	1.2 KB
smc.h	8.31 KB
smc_diag.h	2.77 KB
smiapp.h	1.03 KB
snmp.h	13.92 KB
sock_diag.h	1.27 KB
socket.h	919 B
sockios.h	6.69 KB
sonet.h	2.24 KB
sonypi.h	5.18 KB
sound.h	1.21 KB
soundcard.h	44.96 KB
spi	-
stat.h	7.23 KB
stddef.h	1.69 KB
stm.h	1.25 KB
string.h	238 B
sunrpc	-
surface_aggregator	-
suspend_ioctls.h	1.4 KB
swab.h	6.76 KB
switchtec_ioctl.h	5.14 KB
sync_file.h	3.49 KB
synclink.h	8.77 KB
sysctl.h	25.3 KB
sysinfo.h	1.02 KB
target_core_user.h	4.52 KB
taskstats.h	8.13 KB
tc_act	-
tc_ematch	-
tcp.h	11.65 KB
tcp_metrics.h	1.94 KB
tdx-guest.h	1.27 KB
tee.h	13.09 KB
termios.h	172 B
thermal.h	3.23 KB
time.h	1.71 KB
time_types.h	1.24 KB
timerfd.h	936 B
times.h	278 B
timex.h	7.63 KB
tiocl.h	1.69 KB
tipc.h	8.62 KB
tipc_config.h	14.52 KB
tipc_netlink.h	9.17 KB
tipc_sockets_diag.h	468 B
tls.h	7.06 KB
toshiba.h	1.88 KB
tps6594_pfsm.h	1.13 KB
tty.h	1.55 KB
tty_flags.h	4.4 KB
types.h	1.6 KB
udf_fs_i.h	697 B
udmabuf.h	643 B
udp.h	1.65 KB
uhid.h	4.54 KB
uinput.h	9.04 KB
uio.h	732 B
uleds.h	798 B
ultrasound.h	4.46 KB
um_timetravel.h	3.87 KB
un.h	384 B
unistd.h	220 B
unix_diag.h	1.3 KB
usb	-
usbdevice_fs.h	8.12 KB
usbip.h	1.47 KB
userfaultfd.h	10.68 KB
userio.h	1.48 KB
utime.h	223 B
utsname.h	669 B
uuid.h	28 B
uvcvideo.h	2.57 KB
v4l2-common.h	2.01 KB
v4l2-controls.h	94.59 KB
v4l2-dv-timings.h	30.39 KB
v4l2-mediabus.h	5.3 KB
v4l2-subdev.h	9.76 KB
vbox_err.h	7.09 KB
vbox_vmmdev_types.h	11.38 KB
vboxguest.h	9.15 KB
vdpa.h	1.74 KB
vduse.h	9.58 KB
version.h	374 B
veth.h	224 B
vfio.h	70.12 KB
vfio_ccw.h	1.29 KB
vfio_zdev.h	2.48 KB
vhost.h	8.24 KB
vhost_types.h	4.77 KB
videodev2.h	98.83 KB
virtio_9p.h	2 KB
virtio_balloon.h	5.16 KB
virtio_blk.h	9.75 KB
virtio_bt.h	910 B
virtio_config.h	4.36 KB
virtio_console.h	3.08 KB
virtio_crypto.h	13.56 KB
virtio_fs.h	573 B
virtio_gpio.h	1.7 KB
virtio_gpu.h	11.28 KB
virtio_i2c.h	1.16 KB
virtio_ids.h	3.7 KB
virtio_input.h	2.46 KB
virtio_iommu.h	3.84 KB
virtio_mem.h	6.99 KB
virtio_mmio.h	4.85 KB
virtio_net.h	14.72 KB
virtio_pci.h	7.3 KB
virtio_pcidev.h	2.33 KB
virtio_pmem.h	641 B
virtio_ring.h	8.52 KB
virtio_rng.h	265 B
virtio_scmi.h	637 B
virtio_scsi.h	5.94 KB
virtio_snd.h	12.86 KB
virtio_types.h	2.1 KB
virtio_vsock.h	3.27 KB
vm_sockets.h	7.18 KB
vm_sockets_diag.h	963 B
vmcore.h	455 B
vsockmon.h	1.84 KB
vt.h	2.99 KB
vtpm_proxy.h	1.68 KB
wait.h	682 B
watch_queue.h	3.41 KB
watchdog.h	2.28 KB
wireguard.h	7.57 KB
wireless.h	41.7 KB
wmi.h	1.72 KB
wwan.h	295 B
x25.h	3.48 KB
xattr.h	2.95 KB
xdp_diag.h	1.43 KB
xfrm.h	12.33 KB
xilinx-v4l2-controls.h	2.91 KB
zorro.h	3.22 KB
zorro_ids.h	29.26 KB

Edit: rkisp1-config.h

/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR MIT) */
/*
 * Rockchip ISP1 userspace API
 * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
 */

#ifndef _RKISP1_CONFIG_H
#define _RKISP1_CONFIG_H

#include <linux/types.h>

/* Defect Pixel Cluster Detection */
#define RKISP1_CIF_ISP_MODULE_DPCC		(1U << 0)
/* Black Level Subtraction */
#define RKISP1_CIF_ISP_MODULE_BLS		(1U << 1)
/* Sensor De-gamma */
#define RKISP1_CIF_ISP_MODULE_SDG		(1U << 2)
/* Histogram statistics configuration */
#define RKISP1_CIF_ISP_MODULE_HST		(1U << 3)
/* Lens Shade Control */
#define RKISP1_CIF_ISP_MODULE_LSC		(1U << 4)
/* Auto White Balance Gain */
#define RKISP1_CIF_ISP_MODULE_AWB_GAIN		(1U << 5)
/* Filter */
#define RKISP1_CIF_ISP_MODULE_FLT		(1U << 6)
/* Bayer Demosaic */
#define RKISP1_CIF_ISP_MODULE_BDM		(1U << 7)
/* Cross Talk */
#define RKISP1_CIF_ISP_MODULE_CTK		(1U << 8)
/* Gamma Out Curve */
#define RKISP1_CIF_ISP_MODULE_GOC		(1U << 9)
/* Color Processing */
#define RKISP1_CIF_ISP_MODULE_CPROC		(1U << 10)
/* Auto Focus Control statistics configuration */
#define RKISP1_CIF_ISP_MODULE_AFC		(1U << 11)
/* Auto White Balancing statistics configuration */
#define RKISP1_CIF_ISP_MODULE_AWB		(1U << 12)
/* Image Effect */
#define RKISP1_CIF_ISP_MODULE_IE		(1U << 13)
/* Auto Exposure Control statistics configuration */
#define RKISP1_CIF_ISP_MODULE_AEC		(1U << 14)
/* Wide Dynamic Range */
#define RKISP1_CIF_ISP_MODULE_WDR		(1U << 15)
/* Denoise Pre-Filter */
#define RKISP1_CIF_ISP_MODULE_DPF		(1U << 16)
/* Denoise Pre-Filter Strength */
#define RKISP1_CIF_ISP_MODULE_DPF_STRENGTH	(1U << 17)

#define RKISP1_CIF_ISP_CTK_COEFF_MAX            0x100
#define RKISP1_CIF_ISP_CTK_OFFSET_MAX           0x800

#define RKISP1_CIF_ISP_AE_MEAN_MAX_V10		25
#define RKISP1_CIF_ISP_AE_MEAN_MAX_V12		81
#define RKISP1_CIF_ISP_AE_MEAN_MAX		RKISP1_CIF_ISP_AE_MEAN_MAX_V12

#define RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10	16
#define RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12	32
#define RKISP1_CIF_ISP_HIST_BIN_N_MAX		RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12

#define RKISP1_CIF_ISP_AFM_MAX_WINDOWS          3
#define RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE       17

#define RKISP1_CIF_ISP_BDM_MAX_TH               0xff

/*
 * Black level compensation
 */
/* maximum value for horizontal start address */
#define RKISP1_CIF_ISP_BLS_START_H_MAX             0x00000fff
/* maximum value for horizontal stop address */
#define RKISP1_CIF_ISP_BLS_STOP_H_MAX              0x00000fff
/* maximum value for vertical start address */
#define RKISP1_CIF_ISP_BLS_START_V_MAX             0x00000fff
/* maximum value for vertical stop address */
#define RKISP1_CIF_ISP_BLS_STOP_V_MAX              0x00000fff
/* maximum is 2^18 = 262144*/
#define RKISP1_CIF_ISP_BLS_SAMPLES_MAX             0x00000012
/* maximum value for fixed black level */
#define RKISP1_CIF_ISP_BLS_FIX_SUB_MAX             0x00000fff
/* minimum value for fixed black level */
#define RKISP1_CIF_ISP_BLS_FIX_SUB_MIN             0xfffff000
/* 13 bit range (signed)*/
#define RKISP1_CIF_ISP_BLS_FIX_MASK                0x00001fff

/*
 * Automatic white balance measurements
 */
#define RKISP1_CIF_ISP_AWB_MAX_GRID                1
#define RKISP1_CIF_ISP_AWB_MAX_FRAMES              7

/*
 * Gamma out
 */
/* Maximum number of color samples supported */
#define RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10   17
#define RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12   34
#define RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES       RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12

/*
 * Lens shade correction
 */
#define RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE        8

/*
 * The following matches the tuning process,
 * not the max capabilities of the chip.
 */
#define RKISP1_CIF_ISP_LSC_SAMPLES_MAX             17

/*
 * Histogram calculation
 */
#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10 25
#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12 81
#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE     RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12

/*
 * Defect Pixel Cluster Correction
 */
#define RKISP1_CIF_ISP_DPCC_METHODS_MAX       3

/*
 * Denoising pre filter
 */
#define RKISP1_CIF_ISP_DPF_MAX_NLF_COEFFS      17
#define RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS  6

/*
 * Measurement types
 */
#define RKISP1_CIF_ISP_STAT_AWB           (1U << 0)
#define RKISP1_CIF_ISP_STAT_AUTOEXP       (1U << 1)
#define RKISP1_CIF_ISP_STAT_AFM           (1U << 2)
#define RKISP1_CIF_ISP_STAT_HIST          (1U << 3)

/**
 * enum rkisp1_cif_isp_version - ISP variants
 *
 * @RKISP1_V10: used at least in rk3288 and rk3399
 * @RKISP1_V11: declared in the original vendor code, but not used
 * @RKISP1_V12: used at least in rk3326 and px30
 * @RKISP1_V13: used at least in rk1808
 */
enum rkisp1_cif_isp_version {
	RKISP1_V10 = 10,
	RKISP1_V11,
	RKISP1_V12,
	RKISP1_V13,
};

enum rkisp1_cif_isp_histogram_mode {
	RKISP1_CIF_ISP_HISTOGRAM_MODE_DISABLE,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_RGB_COMBINED,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_R_HISTOGRAM,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_G_HISTOGRAM,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_B_HISTOGRAM,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_Y_HISTOGRAM
};

enum rkisp1_cif_isp_awb_mode_type {
	RKISP1_CIF_ISP_AWB_MODE_MANUAL,
	RKISP1_CIF_ISP_AWB_MODE_RGB,
	RKISP1_CIF_ISP_AWB_MODE_YCBCR
};

enum rkisp1_cif_isp_flt_mode {
	RKISP1_CIF_ISP_FLT_STATIC_MODE,
	RKISP1_CIF_ISP_FLT_DYNAMIC_MODE
};

/**
 * enum rkisp1_cif_isp_exp_ctrl_autostop - stop modes
 * @RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_0: continuous measurement
 * @RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_1: stop measuring after a complete frame
 */
enum rkisp1_cif_isp_exp_ctrl_autostop {
	RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_0 = 0,
	RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_1 = 1,
};

/**
 * enum rkisp1_cif_isp_exp_meas_mode - Exposure measure mode
 * @RKISP1_CIF_ISP_EXP_MEASURING_MODE_0: Y = 16 + 0.25R + 0.5G + 0.1094B
 * @RKISP1_CIF_ISP_EXP_MEASURING_MODE_1: Y = (R + G + B) x (85/256)
 */
enum rkisp1_cif_isp_exp_meas_mode {
	RKISP1_CIF_ISP_EXP_MEASURING_MODE_0,
	RKISP1_CIF_ISP_EXP_MEASURING_MODE_1,
};

/*---------- PART1: Input Parameters ------------*/

/**
 * struct rkisp1_cif_isp_window -  measurement window.
 *
 * Measurements are calculated per window inside the frame.
 * This struct represents a window for a measurement.
 *
 * @h_offs: the horizontal offset of the window from the left of the frame in pixels.
 * @v_offs: the vertical offset of the window from the top of the frame in pixels.
 * @h_size: the horizontal size of the window in pixels
 * @v_size: the vertical size of the window in pixels.
 */
struct rkisp1_cif_isp_window {
	__u16 h_offs;
	__u16 v_offs;
	__u16 h_size;
	__u16 v_size;
};

/**
 * struct rkisp1_cif_isp_bls_fixed_val - BLS fixed subtraction values
 *
 * The values will be subtracted from the sensor
 * values. Therefore a negative value means addition instead of subtraction!
 *
 * @r: Fixed (signed!) subtraction value for Bayer pattern R
 * @gr: Fixed (signed!) subtraction value for Bayer pattern Gr
 * @gb: Fixed (signed!) subtraction value for Bayer pattern Gb
 * @b: Fixed (signed!) subtraction value for Bayer pattern B
 */
struct rkisp1_cif_isp_bls_fixed_val {
	__s16 r;
	__s16 gr;
	__s16 gb;
	__s16 b;
};

/**
 * struct rkisp1_cif_isp_bls_config - Configuration used by black level subtraction
 *
 * @enable_auto: Automatic mode activated means that the measured values
 *		 are subtracted. Otherwise the fixed subtraction
 *		 values will be subtracted.
 * @en_windows: enabled window
 * @bls_window1: Measurement window 1 size
 * @bls_window2: Measurement window 2 size
 * @bls_samples: Set amount of measured pixels for each Bayer position
 *		 (A, B,C and D) to 2^bls_samples.
 * @fixed_val: Fixed subtraction values
 */
struct rkisp1_cif_isp_bls_config {
	__u8 enable_auto;
	__u8 en_windows;
	struct rkisp1_cif_isp_window bls_window1;
	struct rkisp1_cif_isp_window bls_window2;
	__u8 bls_samples;
	struct rkisp1_cif_isp_bls_fixed_val fixed_val;
};

/**
 * struct rkisp1_cif_isp_dpcc_methods_config - Methods Configuration used by DPCC
 *
 * Methods Configuration used by Defect Pixel Cluster Correction
 *
 * @method: Method enable bits
 * @line_thresh: Line threshold
 * @line_mad_fac: Line MAD factor
 * @pg_fac: Peak gradient factor
 * @rnd_thresh: Rank Neighbor Difference threshold
 * @rg_fac: Rank gradient factor
 */
struct rkisp1_cif_isp_dpcc_methods_config {
	__u32 method;
	__u32 line_thresh;
	__u32 line_mad_fac;
	__u32 pg_fac;
	__u32 rnd_thresh;
	__u32 rg_fac;
};

/**
 * struct rkisp1_cif_isp_dpcc_config - Configuration used by DPCC
 *
 * Configuration used by Defect Pixel Cluster Correction
 *
 * @mode: dpcc output mode
 * @output_mode: whether use hard coded methods
 * @set_use: stage1 methods set
 * @methods: methods config
 * @ro_limits: rank order limits
 * @rnd_offs: differential rank offsets for rank neighbor difference
 */
struct rkisp1_cif_isp_dpcc_config {
	__u32 mode;
	__u32 output_mode;
	__u32 set_use;
	struct rkisp1_cif_isp_dpcc_methods_config methods[RKISP1_CIF_ISP_DPCC_METHODS_MAX];
	__u32 ro_limits;
	__u32 rnd_offs;
};

/**
 * struct rkisp1_cif_isp_gamma_corr_curve - gamma curve point definition y-axis (output).
 *
 * The reset values define a linear curve which has the same effect as bypass. Reset values are:
 * gamma_y[0] = 0x0000, gamma_y[1] = 0x0100, ... gamma_y[15] = 0x0f00, gamma_y[16] = 0xfff
 *
 * @gamma_y: the values for the y-axis of gamma curve points. Each value is 12 bit.
 */
struct rkisp1_cif_isp_gamma_corr_curve {
	__u16 gamma_y[RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE];
};

/**
 * struct rkisp1_cif_isp_gamma_curve_x_axis_pnts - De-Gamma Curve definition x increments
 *		(sampling points). gamma_dx0 is for the lower samples (1-8), gamma_dx1 is for the
 *		higher samples (9-16). The reset values for both fields is 0x44444444. This means
 *		that each sample is 4 units away from the previous one on the x-axis.
 *
 * @gamma_dx0: gamma curve sample points definitions. Bits 0:2 for sample 1. Bit 3 unused.
 *		Bits 4:6 for sample 2. bit 7 unused ... Bits 28:30 for sample 8. Bit 31 unused
 * @gamma_dx1: gamma curve sample points definitions. Bits 0:2 for sample 9. Bit 3 unused.
 *		Bits 4:6 for sample 10. bit 7 unused ... Bits 28:30 for sample 16. Bit 31 unused
 */
struct rkisp1_cif_isp_gamma_curve_x_axis_pnts {
	__u32 gamma_dx0;
	__u32 gamma_dx1;
};

/**
 * struct rkisp1_cif_isp_sdg_config - Configuration used by sensor degamma
 *
 * @curve_r: gamma curve point definition axis for red
 * @curve_g: gamma curve point definition axis for green
 * @curve_b: gamma curve point definition axis for blue
 * @xa_pnts: x axis increments
 */
struct rkisp1_cif_isp_sdg_config {
	struct rkisp1_cif_isp_gamma_corr_curve curve_r;
	struct rkisp1_cif_isp_gamma_corr_curve curve_g;
	struct rkisp1_cif_isp_gamma_corr_curve curve_b;
	struct rkisp1_cif_isp_gamma_curve_x_axis_pnts xa_pnts;
};

/**
 * struct rkisp1_cif_isp_lsc_config - Configuration used by Lens shading correction
 *
 * @r_data_tbl: sample table red
 * @gr_data_tbl: sample table green (red)
 * @gb_data_tbl: sample table green (blue)
 * @b_data_tbl: sample table blue
 * @x_grad_tbl: gradient table x
 * @y_grad_tbl: gradient table y
 * @x_size_tbl: size table x
 * @y_size_tbl: size table y
 * @config_width: not used at the moment
 * @config_height: not used at the moment
 */
struct rkisp1_cif_isp_lsc_config {
	__u16 r_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];
	__u16 gr_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];
	__u16 gb_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];
	__u16 b_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];

__u16 x_grad_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];
	__u16 y_grad_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];

__u16 x_size_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];
	__u16 y_size_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];
	__u16 config_width;
	__u16 config_height;
};

/**
 * struct rkisp1_cif_isp_ie_config - Configuration used by image effects
 *
 * @effect: values from 'enum v4l2_colorfx'. Possible values are: V4L2_COLORFX_SEPIA,
 *		V4L2_COLORFX_SET_CBCR, V4L2_COLORFX_AQUA, V4L2_COLORFX_EMBOSS,
 *		V4L2_COLORFX_SKETCH,   V4L2_COLORFX_BW,   V4L2_COLORFX_NEGATIVE
 * @color_sel: bits 0:2 - colors bitmask (001 - blue, 010 - green, 100 - red).
 *		bits 8:15 - Threshold value of the RGB colors for the color selection effect.
 * @eff_mat_1: 3x3 Matrix Coefficients for Emboss Effect 1
 * @eff_mat_2: 3x3 Matrix Coefficients for Emboss Effect 2
 * @eff_mat_3: 3x3 Matrix Coefficients for Emboss 3/Sketch 1
 * @eff_mat_4: 3x3 Matrix Coefficients for Sketch Effect 2
 * @eff_mat_5: 3x3 Matrix Coefficients for Sketch Effect 3
 * @eff_tint: Chrominance increment values of tint (used for sepia effect)
 */
struct rkisp1_cif_isp_ie_config {
	__u16 effect;
	__u16 color_sel;
	__u16 eff_mat_1;
	__u16 eff_mat_2;
	__u16 eff_mat_3;
	__u16 eff_mat_4;
	__u16 eff_mat_5;
	__u16 eff_tint;
};

/**
 * struct rkisp1_cif_isp_cproc_config - Configuration used by Color Processing
 *
 * @c_out_range: Chrominance pixel clipping range at output.
 *		 (0 for limit, 1 for full)
 * @y_in_range: Luminance pixel clipping range at output.
 * @y_out_range: Luminance pixel clipping range at output.
 * @contrast: 00~ff, 0.0~1.992
 * @brightness: 80~7F, -128~+127
 * @sat: saturation, 00~FF, 0.0~1.992
 * @hue: 80~7F, -90~+87.188
 */
struct rkisp1_cif_isp_cproc_config {
	__u8 c_out_range;
	__u8 y_in_range;
	__u8 y_out_range;
	__u8 contrast;
	__u8 brightness;
	__u8 sat;
	__u8 hue;
};

/**
 * struct rkisp1_cif_isp_awb_meas_config - Configuration for the AWB statistics
 *
 * @awb_mode: the awb meas mode. From enum rkisp1_cif_isp_awb_mode_type.
 * @awb_wnd: white balance measurement window (in pixels)
 * @max_y: only pixels values < max_y contribute to awb measurement, set to 0
 *	   to disable this feature
 * @min_y: only pixels values > min_y contribute to awb measurement
 * @max_csum: Chrominance sum maximum value, only consider pixels with Cb+Cr,
 *	      smaller than threshold for awb measurements
 * @min_c: Chrominance minimum value, only consider pixels with Cb/Cr
 *	   each greater than threshold value for awb measurements
 * @frames: number of frames - 1 used for mean value calculation
 *	    (ucFrames=0 means 1 Frame)
 * @awb_ref_cr: reference Cr value for AWB regulation, target for AWB
 * @awb_ref_cb: reference Cb value for AWB regulation, target for AWB
 * @enable_ymax_cmp: enable Y_MAX compare (Not valid in RGB measurement mode.)
 */
struct rkisp1_cif_isp_awb_meas_config {
	/*
	 * Note: currently the h and v offsets are mapped to grid offsets
	 */
	struct rkisp1_cif_isp_window awb_wnd;
	__u32 awb_mode;
	__u8 max_y;
	__u8 min_y;
	__u8 max_csum;
	__u8 min_c;
	__u8 frames;
	__u8 awb_ref_cr;
	__u8 awb_ref_cb;
	__u8 enable_ymax_cmp;
};

/**
 * struct rkisp1_cif_isp_awb_gain_config - Configuration used by auto white balance gain
 *
 * All fields in this struct are 10 bit, where:
 * 0x100h = 1, unsigned integer value, range 0 to 4 with 8 bit fractional part.
 *
 * out_data_x = ( AWB_GAIN_X * in_data + 128) >> 8
 *
 * @gain_red: gain value for red component.
 * @gain_green_r: gain value for green component in red line.
 * @gain_blue: gain value for blue component.
 * @gain_green_b: gain value for green component in blue line.
 */
struct rkisp1_cif_isp_awb_gain_config {
	__u16 gain_red;
	__u16 gain_green_r;
	__u16 gain_blue;
	__u16 gain_green_b;
};

/**
 * struct rkisp1_cif_isp_flt_config - Configuration used by ISP filtering
 *
 * All 4 threshold fields (thresh_*) are 10 bits.
 * All 6 factor fields (fac_*) are 6 bits.
 *
 * @mode: ISP_FILT_MODE register fields (from enum rkisp1_cif_isp_flt_mode)
 * @grn_stage1: Green filter stage 1 select (range 0x0...0x8)
 * @chr_h_mode: Chroma filter horizontal mode
 * @chr_v_mode: Chroma filter vertical mode
 * @thresh_bl0: If thresh_bl1 < sum_grad < thresh_bl0 then fac_bl0 is selected (blurring th)
 * @thresh_bl1: If sum_grad < thresh_bl1 then fac_bl1 is selected (blurring th)
 * @thresh_sh0: If thresh_sh0 < sum_grad < thresh_sh1 then thresh_sh0 is selected (sharpening th)
 * @thresh_sh1: If thresh_sh1 < sum_grad then thresh_sh1 is selected (sharpening th)
 * @lum_weight: Parameters for luminance weight function.
 * @fac_sh1: filter factor for sharp1 level
 * @fac_sh0: filter factor for sharp0 level
 * @fac_mid: filter factor for mid level and for static filter mode
 * @fac_bl0: filter factor for blur 0 level
 * @fac_bl1: filter factor for blur 1 level (max blur)
 */
struct rkisp1_cif_isp_flt_config {
	__u32 mode;
	__u8 grn_stage1;
	__u8 chr_h_mode;
	__u8 chr_v_mode;
	__u32 thresh_bl0;
	__u32 thresh_bl1;
	__u32 thresh_sh0;
	__u32 thresh_sh1;
	__u32 lum_weight;
	__u32 fac_sh1;
	__u32 fac_sh0;
	__u32 fac_mid;
	__u32 fac_bl0;
	__u32 fac_bl1;
};

/**
 * struct rkisp1_cif_isp_bdm_config - Configuration used by Bayer DeMosaic
 *
 * @demosaic_th: threshold for bayer demosaicing texture detection
 */
struct rkisp1_cif_isp_bdm_config {
	__u8 demosaic_th;
};

/**
 * struct rkisp1_cif_isp_ctk_config - Configuration used by Cross Talk correction
 *
 * @coeff: color correction matrix. Values are 11-bit signed fixed-point numbers with 4 bit integer
 *		and 7 bit fractional part, ranging from -8 (0x400) to +7.992 (0x3FF). 0 is
 *		represented by 0x000 and a coefficient value of 1 as 0x080.
 * @ct_offset: Red, Green, Blue offsets for the crosstalk correction matrix
 */
struct rkisp1_cif_isp_ctk_config {
	__u16 coeff[3][3];
	__u16 ct_offset[3];
};

enum rkisp1_cif_isp_goc_mode {
	RKISP1_CIF_ISP_GOC_MODE_LOGARITHMIC,
	RKISP1_CIF_ISP_GOC_MODE_EQUIDISTANT
};

/**
 * struct rkisp1_cif_isp_goc_config - Configuration used by Gamma Out correction
 *
 * @mode: goc mode (from enum rkisp1_cif_isp_goc_mode)
 * @gamma_y: gamma out curve y-axis for all color components
 *
 * The number of entries of @gamma_y depends on the hardware revision
 * as is reported by the hw_revision field of the struct media_device_info
 * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
 *
 * Versions <= V11 have RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10
 * entries, versions >= V12 have RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12
 * entries. RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES is equal to the maximum
 * of the two.
 */
struct rkisp1_cif_isp_goc_config {
	__u32 mode;
	__u16 gamma_y[RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES];
};

/**
 * struct rkisp1_cif_isp_hst_config - Configuration for Histogram statistics
 *
 * @mode: histogram mode (from enum rkisp1_cif_isp_histogram_mode)
 * @histogram_predivider: process every stepsize pixel, all other pixels are
 *			  skipped
 * @meas_window: coordinates of the measure window
 * @hist_weight: weighting factor for sub-windows
 *
 * The number of entries of @hist_weight depends on the hardware revision
 * as is reported by the hw_revision field of the struct media_device_info
 * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
 *
 * Versions <= V11 have RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10
 * entries, versions >= V12 have RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12
 * entries. RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE is equal to the maximum
 * of the two.
 */
struct rkisp1_cif_isp_hst_config {
	__u32 mode;
	__u8 histogram_predivider;
	struct rkisp1_cif_isp_window meas_window;
	__u8 hist_weight[RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE];
};

/**
 * struct rkisp1_cif_isp_aec_config - Configuration for Auto Exposure statistics
 *
 * @mode: Exposure measure mode (from enum rkisp1_cif_isp_exp_meas_mode)
 * @autostop: stop mode (from enum rkisp1_cif_isp_exp_ctrl_autostop)
 * @meas_window: coordinates of the measure window
 */
struct rkisp1_cif_isp_aec_config {
	__u32 mode;
	__u32 autostop;
	struct rkisp1_cif_isp_window meas_window;
};

/**
 * struct rkisp1_cif_isp_afc_config - Configuration for the Auto Focus statistics
 *
 * @num_afm_win: max RKISP1_CIF_ISP_AFM_MAX_WINDOWS
 * @afm_win: coordinates of the meas window
 * @thres: threshold used for minimizing the influence of noise
 * @var_shift: the number of bits for the shift operation at the end of the
 *	       calculation chain.
 */
struct rkisp1_cif_isp_afc_config {
	__u8 num_afm_win;
	struct rkisp1_cif_isp_window afm_win[RKISP1_CIF_ISP_AFM_MAX_WINDOWS];
	__u32 thres;
	__u32 var_shift;
};

/**
 * enum rkisp1_cif_isp_dpf_gain_usage - dpf gain usage
 * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED: don't use any gains in preprocessing stage
 * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_GAINS: use only the noise function gains from
 *				    registers DPF_NF_GAIN_R, ...
 * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS:  use only the gains from LSC module
 * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_LSC_GAINS: use the noise function gains and the
 *					gains from LSC module
 * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_GAINS: use only the gains from AWB module
 * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_LSC_GAINS: use the gains from AWB and LSC module
 * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_MAX: upper border (only for an internal evaluation)
 */
enum rkisp1_cif_isp_dpf_gain_usage {
	RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED,
	RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_GAINS,
	RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS,
	RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_LSC_GAINS,
	RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_GAINS,
	RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_LSC_GAINS,
	RKISP1_CIF_ISP_DPF_GAIN_USAGE_MAX
};

/**
 * enum rkisp1_cif_isp_dpf_rb_filtersize - Red and blue filter sizes
 * @RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_13x9: red and blue filter kernel size 13x9
 *				   (means 7x5 active pixel)
 * @RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_9x9: red and blue filter kernel size 9x9
 *				   (means 5x5 active pixel)
 */
enum rkisp1_cif_isp_dpf_rb_filtersize {
	RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_13x9,
	RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_9x9,
};

/**
 * enum rkisp1_cif_isp_dpf_nll_scale_mode - dpf noise level scale mode
 * @RKISP1_CIF_ISP_NLL_SCALE_LINEAR: use a linear scaling
 * @RKISP1_CIF_ISP_NLL_SCALE_LOGARITHMIC: use a logarithmic scaling
 */
enum rkisp1_cif_isp_dpf_nll_scale_mode {
	RKISP1_CIF_ISP_NLL_SCALE_LINEAR,
	RKISP1_CIF_ISP_NLL_SCALE_LOGARITHMIC,
};

/**
 * struct rkisp1_cif_isp_dpf_nll - Noise level lookup
 *
 * @coeff: Noise level Lookup coefficient
 * @scale_mode: dpf noise level scale mode (from enum rkisp1_cif_isp_dpf_nll_scale_mode)
 */
struct rkisp1_cif_isp_dpf_nll {
	__u16 coeff[RKISP1_CIF_ISP_DPF_MAX_NLF_COEFFS];
	__u32 scale_mode;
};

/**
 * struct rkisp1_cif_isp_dpf_rb_flt - Red blue filter config
 *
 * @fltsize: The filter size for the red and blue pixels
 *	     (from enum rkisp1_cif_isp_dpf_rb_filtersize)
 * @spatial_coeff: Spatial weights
 * @r_enable: enable filter processing for red pixels
 * @b_enable: enable filter processing for blue pixels
 */
struct rkisp1_cif_isp_dpf_rb_flt {
	__u32 fltsize;
	__u8 spatial_coeff[RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS];
	__u8 r_enable;
	__u8 b_enable;
};

/**
 * struct rkisp1_cif_isp_dpf_g_flt - Green filter Configuration
 *
 * @spatial_coeff: Spatial weights
 * @gr_enable: enable filter processing for green pixels in green/red lines
 * @gb_enable: enable filter processing for green pixels in green/blue lines
 */
struct rkisp1_cif_isp_dpf_g_flt {
	__u8 spatial_coeff[RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS];
	__u8 gr_enable;
	__u8 gb_enable;
};

/**
 * struct rkisp1_cif_isp_dpf_gain - Noise function Configuration
 *
 * @mode: dpf gain usage  (from enum rkisp1_cif_isp_dpf_gain_usage)
 * @nf_r_gain: Noise function Gain that replaces the AWB gain for red pixels
 * @nf_b_gain: Noise function Gain that replaces the AWB gain for blue pixels
 * @nf_gr_gain: Noise function Gain that replaces the AWB gain
 *		for green pixels in a red line
 * @nf_gb_gain: Noise function Gain that replaces the AWB gain
 *		for green pixels in a blue line
 */
struct rkisp1_cif_isp_dpf_gain {
	__u32 mode;
	__u16 nf_r_gain;
	__u16 nf_b_gain;
	__u16 nf_gr_gain;
	__u16 nf_gb_gain;
};

/**
 * struct rkisp1_cif_isp_dpf_config - Configuration used by De-noising pre-filter
 *
 * @gain: noise function gain
 * @g_flt: green filter config
 * @rb_flt: red blue filter config
 * @nll: noise level lookup
 */
struct rkisp1_cif_isp_dpf_config {
	struct rkisp1_cif_isp_dpf_gain gain;
	struct rkisp1_cif_isp_dpf_g_flt g_flt;
	struct rkisp1_cif_isp_dpf_rb_flt rb_flt;
	struct rkisp1_cif_isp_dpf_nll nll;
};

/**
 * struct rkisp1_cif_isp_dpf_strength_config - strength of the filter
 *
 * @r: filter strength of the RED filter
 * @g: filter strength of the GREEN filter
 * @b: filter strength of the BLUE filter
 */
struct rkisp1_cif_isp_dpf_strength_config {
	__u8 r;
	__u8 g;
	__u8 b;
};

/**
 * struct rkisp1_cif_isp_isp_other_cfg - Parameters for some blocks in rockchip isp1
 *
 * @dpcc_config: Defect Pixel Cluster Correction config
 * @bls_config: Black Level Subtraction config
 * @sdg_config: sensor degamma config
 * @lsc_config: Lens Shade config
 * @awb_gain_config: Auto White balance gain config
 * @flt_config: filter config
 * @bdm_config: demosaic config
 * @ctk_config: cross talk config
 * @goc_config: gamma out config
 * @bls_config: black level subtraction config
 * @dpf_config: De-noising pre-filter config
 * @dpf_strength_config: dpf strength config
 * @cproc_config: color process config
 * @ie_config: image effects config
 */
struct rkisp1_cif_isp_isp_other_cfg {
	struct rkisp1_cif_isp_dpcc_config dpcc_config;
	struct rkisp1_cif_isp_bls_config bls_config;
	struct rkisp1_cif_isp_sdg_config sdg_config;
	struct rkisp1_cif_isp_lsc_config lsc_config;
	struct rkisp1_cif_isp_awb_gain_config awb_gain_config;
	struct rkisp1_cif_isp_flt_config flt_config;
	struct rkisp1_cif_isp_bdm_config bdm_config;
	struct rkisp1_cif_isp_ctk_config ctk_config;
	struct rkisp1_cif_isp_goc_config goc_config;
	struct rkisp1_cif_isp_dpf_config dpf_config;
	struct rkisp1_cif_isp_dpf_strength_config dpf_strength_config;
	struct rkisp1_cif_isp_cproc_config cproc_config;
	struct rkisp1_cif_isp_ie_config ie_config;
};

/**
 * struct rkisp1_cif_isp_isp_meas_cfg - Rockchip ISP1 Measure Parameters
 *
 * @awb_meas_config: auto white balance config
 * @hst_config: histogram config
 * @aec_config: auto exposure config
 * @afc_config: auto focus config
 */
struct rkisp1_cif_isp_isp_meas_cfg {
	struct rkisp1_cif_isp_awb_meas_config awb_meas_config;
	struct rkisp1_cif_isp_hst_config hst_config;
	struct rkisp1_cif_isp_aec_config aec_config;
	struct rkisp1_cif_isp_afc_config afc_config;
};

/**
 * struct rkisp1_params_cfg - Rockchip ISP1 Input Parameters Meta Data
 *
 * @module_en_update: mask the enable bits of which module should be updated
 * @module_ens: mask the enable value of each module, only update the module
 *		which correspond bit was set in module_en_update
 * @module_cfg_update: mask the config bits of which module should be updated
 * @meas: measurement config
 * @others: other config
 */
struct rkisp1_params_cfg {
	__u32 module_en_update;
	__u32 module_ens;
	__u32 module_cfg_update;

struct rkisp1_cif_isp_isp_meas_cfg meas;
	struct rkisp1_cif_isp_isp_other_cfg others;
};

/*---------- PART2: Measurement Statistics ------------*/

/**
 * struct rkisp1_cif_isp_awb_meas - AWB measured values
 *
 * @cnt: White pixel count, number of "white pixels" found during last
 *	 measurement
 * @mean_y_or_g: Mean value of Y within window and frames,
 *		 Green if RGB is selected.
 * @mean_cb_or_b: Mean value of Cb within window and frames,
 *		  Blue if RGB is selected.
 * @mean_cr_or_r: Mean value of Cr within window and frames,
 *		  Red if RGB is selected.
 */
struct rkisp1_cif_isp_awb_meas {
	__u32 cnt;
	__u8 mean_y_or_g;
	__u8 mean_cb_or_b;
	__u8 mean_cr_or_r;
};

/**
 * struct rkisp1_cif_isp_awb_stat - statistics automatic white balance data
 *
 * @awb_mean: Mean measured data
 */
struct rkisp1_cif_isp_awb_stat {
	struct rkisp1_cif_isp_awb_meas awb_mean[RKISP1_CIF_ISP_AWB_MAX_GRID];
};

/**
 * struct rkisp1_cif_isp_bls_meas_val - BLS measured values
 *
 * @meas_r: Mean measured value for Bayer pattern R
 * @meas_gr: Mean measured value for Bayer pattern Gr
 * @meas_gb: Mean measured value for Bayer pattern Gb
 * @meas_b: Mean measured value for Bayer pattern B
 */
struct rkisp1_cif_isp_bls_meas_val {
	__u16 meas_r;
	__u16 meas_gr;
	__u16 meas_gb;
	__u16 meas_b;
};

/**
 * struct rkisp1_cif_isp_ae_stat - statistics auto exposure data
 *
 * @exp_mean: Mean luminance value of block xx
 * @bls_val:  BLS measured values
 *
 * The number of entries of @exp_mean depends on the hardware revision
 * as is reported by the hw_revision field of the struct media_device_info
 * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
 *
 * Versions <= V11 have RKISP1_CIF_ISP_AE_MEAN_MAX_V10 entries,
 * versions >= V12 have RKISP1_CIF_ISP_AE_MEAN_MAX_V12 entries.
 * RKISP1_CIF_ISP_AE_MEAN_MAX is equal to the maximum of the two.
 *
 * Image is divided into 5x5 blocks on V10 and 9x9 blocks on V12.
 */
struct rkisp1_cif_isp_ae_stat {
	__u8 exp_mean[RKISP1_CIF_ISP_AE_MEAN_MAX];
	struct rkisp1_cif_isp_bls_meas_val bls_val;
};

/**
 * struct rkisp1_cif_isp_af_meas_val - AF measured values
 *
 * @sum: sharpness value
 * @lum: luminance value
 */
struct rkisp1_cif_isp_af_meas_val {
	__u32 sum;
	__u32 lum;
};

/**
 * struct rkisp1_cif_isp_af_stat - statistics auto focus data
 *
 * @window: AF measured value of window x
 *
 * The module measures the sharpness in 3 windows of selectable size via
 * register settings(ISP_AFM_*_A/B/C)
 */
struct rkisp1_cif_isp_af_stat {
	struct rkisp1_cif_isp_af_meas_val window[RKISP1_CIF_ISP_AFM_MAX_WINDOWS];
};

/**
 * struct rkisp1_cif_isp_hist_stat - statistics histogram data
 *
 * @hist_bins: measured bin counters. Each bin is a 20 bits unsigned fixed point
 *	       type. Bits 0-4 are the fractional part and bits 5-19 are the
 *	       integer part.
 *
 * The window of the measurements area is divided to 5x5 sub-windows for
 * V10/V11 and to 9x9 sub-windows for V12. The histogram is then computed for
 * each sub-window independently and the final result is a weighted average of
 * the histogram measurements on all sub-windows. The window of the
 * measurements area and the weight of each sub-window are configurable using
 * struct @rkisp1_cif_isp_hst_config.
 *
 * The histogram contains 16 bins in V10/V11 and 32 bins in V12/V13.
 *
 * The number of entries of @hist_bins depends on the hardware revision
 * as is reported by the hw_revision field of the struct media_device_info
 * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
 *
 * Versions <= V11 have RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10 entries,
 * versions >= V12 have RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12 entries.
 * RKISP1_CIF_ISP_HIST_BIN_N_MAX is equal to the maximum of the two.
 */
struct rkisp1_cif_isp_hist_stat {
	__u32 hist_bins[RKISP1_CIF_ISP_HIST_BIN_N_MAX];
};

/**
 * struct rkisp1_cif_isp_stat - Rockchip ISP1 Statistics Data
 *
 * @awb: statistics data for automatic white balance
 * @ae: statistics data for auto exposure
 * @af: statistics data for auto focus
 * @hist: statistics histogram data
 */
struct rkisp1_cif_isp_stat {
	struct rkisp1_cif_isp_awb_stat awb;
	struct rkisp1_cif_isp_ae_stat ae;
	struct rkisp1_cif_isp_af_stat af;
	struct rkisp1_cif_isp_hist_stat hist;
};

/**
 * struct rkisp1_stat_buffer - Rockchip ISP1 Statistics Meta Data
 *
 * @meas_type: measurement types (RKISP1_CIF_ISP_STAT_* definitions)
 * @frame_id: frame ID for sync
 * @params: statistics data
 */
struct rkisp1_stat_buffer {
	__u32 meas_type;
	__u32 frame_id;
	struct rkisp1_cif_isp_stat params;
};

#endif /* _RKISP1_CONFIG_H */