dimerr · Nov 8, 2026 · Nov 8, 2026 · Nov 8, 2026 · Nov 8, 2026 · Nov 8, 2026
@@ -17,7 +17,7 @@ CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_ARCH_SUPPORTS_UPROBES=y
 CONFIG_VECTORS_BASE=0xffff0000
 # CONFIG_ARM_PATCH_PHYS_VIRT is not set
-CONFIG_PHYS_OFFSET=0x81800000
+CONFIG_PHYS_OFFSET=0x80000000
 CONFIG_GENERIC_BUG=y
 CONFIG_PGTABLE_LEVELS=2
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
@@ -280,6 +280,7 @@ CONFIG_VIDEO_RESERVED_MEM_SIZE=0x1800000
 # CONFIG_MACH_AK39EV330 is not set
 CONFIG_MACH_AK3918EV200=y
 CONFIG_AK39_SYSCTRL_5TIMERS=y
+CONFIG_AK_RMEM=y
 CONFIG_AK3918_FAMILY=y
 CONFIG_AK_OPENIPC_DTB="ak3918ev200-demb"
 CONFIG_CPU_AK3918EV200=y
@@ -1442,7 +1443,6 @@ CONFIG_VIDEO_V4L2=y
 # CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
 CONFIG_V4L2_MEM2MEM_DEV=y
 CONFIG_VIDEOBUF_GEN=y
-CONFIG_VIDEOBUF_DMA_CONTIG=y
 CONFIG_VIDEOBUF2_CORE=y
 CONFIG_VIDEOBUF2_MEMOPS=y
 CONFIG_VIDEOBUF2_DMA_CONTIG=y
@@ -1457,23 +1457,32 @@ CONFIG_VIDEOBUF2_DMA_CONTIG=y
 # Anyka platform video devices
 #
 CONFIG_VIDEO_AK_VENC=y
+CONFIG_VIDEO_AK_CAM=y
+CONFIG_VIDEO_AK_CAM_SENSOR=y
 CONFIG_V4L_PLATFORM_DRIVERS=y
 CONFIG_SOC_CAMERA=y
 CONFIG_SOC_CAMERA_PLATFORM=y
-CONFIG_VIDEO_AK=y
+# CONFIG_VIDEO_AK is not set
 CONFIG_AK_ISP_CORE=y
 CONFIG_SENSOR_GC1084=y
 CONFIG_SENSOR_AR0130_ISP2=y
 CONFIG_SENSOR_BF3703=y
 CONFIG_SENSOR_F22_F23_F28_F35_F37=y
+CONFIG_SENSOR_GC1024=y
+CONFIG_SENSOR_GC1034=y
 CONFIG_SENSOR_GC1054=y
 CONFIG_SENSOR_GC2053=y
+CONFIG_SENSOR_H62=y
 CONFIG_SENSOR_H63=y
 CONFIG_SENSOR_H65=y
 CONFIG_SENSOR_IMX307=y
 CONFIG_SENSOR_PS5260=y
+CONFIG_SENSOR_SC1135=y
+CONFIG_SENSOR_SC1145=y
 CONFIG_SENSOR_SC1235=y
 CONFIG_SENSOR_SC1245=y
+CONFIG_SENSOR_SC1345=y
+CONFIG_SENSOR_SC2232=y
 CONFIG_SENSOR_SC2232H_SC2135E=y
 CONFIG_SENSOR_SC2235=y
 CONFIG_SENSOR_SC2239_SC2332_SC2335=y

@@ -20,7 +20,7 @@ BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(EXTERNAL_VENDOR)/board/$(OPENIPC_SOC_FAMI
 # The uImage is the zImage with the board's DTB appended
 # (CONFIG_ARM_APPENDED_DTB), built by the kernel itself as on hisilicon.
 BR2_LINUX_KERNEL_UIMAGE=y
-BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x81808000"
+BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x80008000"
 BR2_LINUX_KERNEL_XZ=y
 
 # Filesystem
@@ -49,6 +49,7 @@ BR2_OPENIPC_VARIANT="lite"
 BR2_OPENIPC_FLASH_SIZE="8"
 
 # Packages
+BR2_PACKAGE_ANYKA_OSDRV_AK3918EV200=y
 BR2_PACKAGE_DROPBEAR_OPENIPC=y
 BR2_PACKAGE_IPCTOOL=y
 BR2_PACKAGE_LIBCURL_OPENIPC=y

@@ -3,6 +3,7 @@ source "$BR2_EXTERNAL_GENERAL_PATH/package/aic8800-openipc/Config.in"
 source "$BR2_EXTERNAL_GENERAL_PATH/package/allwinner-osdrv-v83x/Config.in"
 source "$BR2_EXTERNAL_GENERAL_PATH/package/allwinner-osdrv-v85x/Config.in"
 source "$BR2_EXTERNAL_GENERAL_PATH/package/anyka-osdrv-ak3918av130/Config.in"
+source "$BR2_EXTERNAL_GENERAL_PATH/package/anyka-osdrv-ak3918ev200/Config.in"
 source "$BR2_EXTERNAL_GENERAL_PATH/package/atbm-wifi/Config.in"
 source "$BR2_EXTERNAL_GENERAL_PATH/package/atbm603x-comb-openipc/Config.in"
 source "$BR2_EXTERNAL_GENERAL_PATH/package/atbm60xx/Config.in"

@@ -0,0 +1,11 @@
+config BR2_PACKAGE_ANYKA_OSDRV_AK3918EV200
+	bool "anyka-osdrv-ak3918ev200"
+	depends on BR2_LINUX_KERNEL
+	help
+	  Anyka AK3918EV200 support files: the sensors' ISP tuning in
+	  /etc/sensor, which the kernel's ISP driver loads by sensor name,
+	  and the load_anyka script that keeps the bootloader's video
+	  memory split (osmem, rmem) in the form the kernel expects.
+	  The drivers themselves are built into the kernel.
+
+	  https://openipc.org
@@ -0,0 +1,50 @@
+################################################################################
+#
+# anyka-osdrv-ak3918ev200
+#
+################################################################################
+
+ANYKA_OSDRV_AK3918EV200_VERSION =
+ANYKA_OSDRV_AK3918EV200_SITE =
+ANYKA_OSDRV_AK3918EV200_LICENSE = PROPRIETARY
+
+# files/sensor/<sensor>.conf is the ISP tuning of one sensor, named as
+# ipctool names the sensor (`ipcinfo -s`), not always as the vendor did.
+# The kernel's ISP driver (drivers/misc/ak_isp_tuning.c) reads
+# /etc/sensor/<name>.conf for the
+# sensor it detected when capture first starts, so every file here is
+# reachable and only the detected sensor's is read.
+#
+# Every file is a vendor tuning from the stock firmware of an AK3918EV200
+# camera, converted from the vendor's "3.0xx" layout to the "3.05_032401"
+# one the kernel validates with files/sensor/convert-3.004.py. The
+# conversion changes header fields only (version string, style count and
+# style size) and gives each style style 0's sensor register list, the
+# only one the kernel writes; no tuning value is changed.
+#
+#   gc1004.conf  isp_gc1024.conf      v3.000      AK3918EV200 camera
+#   gc1034.conf  isp_gc1034_0.conf    v3.001      V380E2 camera
+#   jxh62.conf   isp_h62.conf         v3.004      AnyCloud39EV300 SDK
+#                (UVC_check_sensor; a webcam tuning, the only H62 one)
+#   sc1135.conf  isp_sc1135_0.conf    v3.015      V380E2 camera
+#   sc1145.conf  isp_sc1145.conf      v3.006      AK3918EV200 camera
+#   sc1235.conf  isp_sc1235.conf      v3.012      AK3918EV200 camera
+#   sc1345.conf  isp_sc1345_dvp.conf  v3.004      Gwell camera
+#   sc2145h.conf isp_sc1245.conf      v3.011      AK3918EV200 camera
+#   sc2235p.conf isp_sc2232.conf      v3.000      V380E2 camera
+#
+# Where a camera carried several, the newest generic one was taken. The
+# EV300 and EV330 tunings ("4.x", "5.x") are laid out for other ISP
+# libraries and are not usable here.
+
+define ANYKA_OSDRV_AK3918EV200_INSTALL_TARGET_CMDS
+	$(INSTALL) -m 755 -d $(TARGET_DIR)/etc/sensor
+	$(INSTALL) -m 644 -t $(TARGET_DIR)/etc/sensor \
+		$(ANYKA_OSDRV_AK3918EV200_PKGDIR)/files/sensor/*.conf
+
+	$(INSTALL) -m 755 -d $(TARGET_DIR)/usr/bin
+	$(INSTALL) -m 755 -t $(TARGET_DIR)/usr/bin \
+		$(ANYKA_OSDRV_AK3918EV200_PKGDIR)/files/script/load_anyka
+endef
+
+$(eval $(generic-package))
@@ -0,0 +1,37 @@
+#!/bin/sh
+#
+# AK3918EV200: the ISP, encoder and sensor drivers are built into the
+# kernel, so there is nothing to load. The kernel gets its memory split as
+# on the other OpenIPC SoCs: Linux has osmem (bootargs mem=${osmem}) and the
+# video drivers the rest of totalmem. An environment that leaves video less
+# than the vendor firmware's 24 MiB -- all of totalmem to Linux, as before
+# this split existed, or any osmem too close to it -- cannot capture; it
+# is brought down to the vendor split, once, and the camera rebooted.
+
+vendor=$(ipcinfo -v)
+video_mem=24
+
+log_vendor() {
+	logger -s -p daemon.info -t "${vendor:-anyka}" "$1"
+}
+
+check_mem() {
+	total=$(fw_printenv -n totalmem 2>/dev/null | tr -d 'M')
+	os=$(fw_printenv -n osmem 2>/dev/null | tr -d 'M')
+	[ -n "$total" ] && [ "$total" -gt "$video_mem" ] || return
+	[ -z "$os" ] || [ $((total - os)) -lt "$video_mem" ] || return
+
+	fw_setenv osmem "$((total - video_mem))M" || return
+	log_vendor "osmem $((total - video_mem))M of ${total}M, video ${video_mem}M; rebooting"
+	reboot
+}
+
+case "$1" in
+	-i)
+		check_mem
+		;;
+	*)
+		echo "Usage: $0 -i"
+		exit 1
+		;;
+esac
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+"""Convert an Anyka EV200 "3.004" ISP tuning file to the "3.05_032401"
+layout that drivers/misc/ak_isp_tuning.c accepts.
+
+Both layouts carry the same 0x200-byte style header and the same 24
+modules (IDs 0x00-0x17) with identical sizes; each style ends with a
+0x1c block holding the sensor register list. The kernel additionally
+wants every style to be the same size (header field 0x24) and the file
+to hold exactly header[0] styles. The 3.004 files give styles of
+different length (the register lists differ) and a stale style count.
+
+Only style 0's register list is ever written to the sensor (the kernel
+initialises the sensor from style 0 only), so later styles get style 0's
+register list, which makes all styles the same size.
+"""
+import struct
+import sys
+
+HEADER = 0x200
+VERSION = b"3.05_032401\0"
+SIZES = [186, 192, 876, 2268, 1088, 86, 22, 876, 136, 106, 9966, 11096,
+         206, 64, 6, 14, 4188, 260, 46, 528, 240, 30, 306, 996]
+
+
+def styles(data):
+    off = 0
+    while off + HEADER + 4 <= len(data):
+        mod = off + HEADER
+        for i, size in enumerate(SIZES):
+            mid, msize = struct.unpack_from("<HH", data, mod)
+            if mid != i or msize != size:
+                if i == 0:
+                    return
+                sys.exit(f"style at {off:#x}: module {i} is id {mid:#x} size {msize}")
+            mod += size
+        sid, ssize = struct.unpack_from("<HH", data, mod)
+        # Unlike the modules, this size excludes the 4-byte block header.
+        if sid != 0x1c or ssize % 4 or mod + 4 + ssize > len(data):
+            sys.exit(f"style at {off:#x}: sensor block id {sid:#x} size {ssize}")
+        yield data[off:mod], data[mod:mod + 4 + ssize]
+        off = mod + 4 + ssize
+
+
+def main(src, dst):
+    data = open(src, "rb").read()
+    found = list(styles(data))
+    if not found:
+        sys.exit("no styles found")
+    sensor_id = struct.unpack_from("<I", data, 0x14)[0]
+    regs = found[0][1]
+    out = []
+    for body, _ in found:
+        style = bytearray(body + regs)
+        struct.pack_into("<I", style, 0, len(found))
+        style[4:4 + len(VERSION)] = VERSION
+        struct.pack_into("<I", style, 0x24, len(style))
+        if struct.unpack_from("<I", style, 0x14)[0] != sensor_id:
+            sys.exit("styles disagree on the sensor id")
+        out.append(bytes(style))
+    open(dst, "wb").write(b"".join(out))
+    print(f"{dst}: sensor {sensor_id:#x}, {len(out)} styles x {len(out[0])} bytes, "
+          f"{(len(regs) - 4) // 4} sensor registers, last {regs[-4:].hex()}")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        sys.exit(f"usage: {sys.argv[0]} vendor.conf isp.conf")
+    main(sys.argv[1], sys.argv[2])