Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 600 insertions, 0 deletions

diff --git a/drivers/media/usb/gspca/m5602/m5602_mt9m111.c b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c
new file mode 100644
index 000000000..bf1af6ed9
--- /dev/null
+++ b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c
@@ -0,0 +1,600 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Driver for the mt9m111 sensor
+ *
+ * Copyright (C) 2008 Erik Andrén
+ * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
+ * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
+ *
+ * Portions of code to USB interface and ALi driver software,
+ * Copyright (c) 2006 Willem Duinker
+ * v4l2 interface modeled after the V4L2 driver
+ * for SN9C10x PC Camera Controllers
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "m5602_mt9m111.h"
+
+static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl);
+static void mt9m111_dump_registers(struct sd *sd);
+
+static const unsigned char preinit_mt9m111[][4] = {
+	{BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
+	{BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00},
+	{BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
+
+	{SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
+	{SENSOR, MT9M111_SC_RESET,
+		MT9M111_RESET |
+		MT9M111_RESTART |
+		MT9M111_ANALOG_STANDBY |
+		MT9M111_CHIP_DISABLE,
+		MT9M111_SHOW_BAD_FRAMES |
+		MT9M111_RESTART_BAD_FRAMES |
+		MT9M111_SYNCHRONIZE_CHANGES},
+
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x05, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x3e, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
+
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
+
+	{BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00}
+};
+
+static const unsigned char init_mt9m111[][4] = {
+	{BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
+	{BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
+
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00},
+	{BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00},
+
+	{SENSOR, MT9M111_SC_RESET, 0x00, 0x29},
+	{SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
+	{SENSOR, MT9M111_SC_RESET, 0x00, 0x08},
+	{SENSOR, MT9M111_PAGE_MAP, 0x00, 0x01},
+	{SENSOR, MT9M111_CP_OPERATING_MODE_CTL, 0x00,
+			MT9M111_CP_OPERATING_MODE_CTL},
+	{SENSOR, MT9M111_CP_LENS_CORRECTION_1, 0x04, 0x2a},
+	{SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_A, 0x00,
+				MT9M111_2D_DEFECT_CORRECTION_ENABLE},
+	{SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_B, 0x00,
+				MT9M111_2D_DEFECT_CORRECTION_ENABLE},
+	{SENSOR, MT9M111_CP_LUMA_OFFSET, 0x00, 0x00},
+	{SENSOR, MT9M111_CP_LUMA_CLIP, 0xff, 0x00},
+	{SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_A, 0x14, 0x00},
+	{SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_B, 0x14, 0x00},
+	{SENSOR, 0xcd, 0x00, 0x0e},
+	{SENSOR, 0xd0, 0x00, 0x40},
+
+	{SENSOR, MT9M111_PAGE_MAP, 0x00, 0x02},
+	{SENSOR, MT9M111_CC_AUTO_EXPOSURE_PARAMETER_18, 0x00, 0x00},
+	{SENSOR, MT9M111_CC_AWB_PARAMETER_7, 0xef, 0x03},
+
+	{SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
+	{SENSOR, 0x33, 0x03, 0x49},
+	{SENSOR, 0x34, 0xc0, 0x19},
+	{SENSOR, 0x3f, 0x20, 0x20},
+	{SENSOR, 0x40, 0x20, 0x20},
+	{SENSOR, 0x5a, 0xc0, 0x0a},
+	{SENSOR, 0x70, 0x7b, 0x0a},
+	{SENSOR, 0x71, 0xff, 0x00},
+	{SENSOR, 0x72, 0x19, 0x0e},
+	{SENSOR, 0x73, 0x18, 0x0f},
+	{SENSOR, 0x74, 0x57, 0x32},
+	{SENSOR, 0x75, 0x56, 0x34},
+	{SENSOR, 0x76, 0x73, 0x35},
+	{SENSOR, 0x77, 0x30, 0x12},
+	{SENSOR, 0x78, 0x79, 0x02},
+	{SENSOR, 0x79, 0x75, 0x06},
+	{SENSOR, 0x7a, 0x77, 0x0a},
+	{SENSOR, 0x7b, 0x78, 0x09},
+	{SENSOR, 0x7c, 0x7d, 0x06},
+	{SENSOR, 0x7d, 0x31, 0x10},
+	{SENSOR, 0x7e, 0x00, 0x7e},
+	{SENSOR, 0x80, 0x59, 0x04},
+	{SENSOR, 0x81, 0x59, 0x04},
+	{SENSOR, 0x82, 0x57, 0x0a},
+	{SENSOR, 0x83, 0x58, 0x0b},
+	{SENSOR, 0x84, 0x47, 0x0c},
+	{SENSOR, 0x85, 0x48, 0x0e},
+	{SENSOR, 0x86, 0x5b, 0x02},
+	{SENSOR, 0x87, 0x00, 0x5c},
+	{SENSOR, MT9M111_CONTEXT_CONTROL, 0x00, MT9M111_SEL_CONTEXT_B},
+	{SENSOR, 0x60, 0x00, 0x80},
+	{SENSOR, 0x61, 0x00, 0x00},
+	{SENSOR, 0x62, 0x00, 0x00},
+	{SENSOR, 0x63, 0x00, 0x00},
+	{SENSOR, 0x64, 0x00, 0x00},
+
+	{SENSOR, MT9M111_SC_ROWSTART, 0x00, 0x0d}, /* 13 */
+	{SENSOR, MT9M111_SC_COLSTART, 0x00, 0x12}, /* 18 */
+	{SENSOR, MT9M111_SC_WINDOW_HEIGHT, 0x04, 0x00}, /* 1024 */
+	{SENSOR, MT9M111_SC_WINDOW_WIDTH, 0x05, 0x10}, /* 1296 */
+	{SENSOR, MT9M111_SC_HBLANK_CONTEXT_B, 0x01, 0x60}, /* 352 */
+	{SENSOR, MT9M111_SC_VBLANK_CONTEXT_B, 0x00, 0x11}, /* 17 */
+	{SENSOR, MT9M111_SC_HBLANK_CONTEXT_A, 0x01, 0x60}, /* 352 */
+	{SENSOR, MT9M111_SC_VBLANK_CONTEXT_A, 0x00, 0x11}, /* 17 */
+	{SENSOR, MT9M111_SC_R_MODE_CONTEXT_A, 0x01, 0x0f}, /* 271 */
+	{SENSOR, 0x30, 0x04, 0x00},
+	/* Set number of blank rows chosen to 400 */
+	{SENSOR, MT9M111_SC_SHUTTER_WIDTH, 0x01, 0x90},
+};
+
+static const unsigned char start_mt9m111[][4] = {
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
+	{BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00},
+	{BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00},
+	{BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
+};
+
+static struct v4l2_pix_format mt9m111_modes[] = {
+	{
+		640,
+		480,
+		V4L2_PIX_FMT_SBGGR8,
+		V4L2_FIELD_NONE,
+		.sizeimage = 640 * 480,
+		.bytesperline = 640,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0
+	}
+};
+
+static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
+	.s_ctrl = mt9m111_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config mt9m111_greenbal_cfg = {
+	.ops	= &mt9m111_ctrl_ops,
+	.id	= M5602_V4L2_CID_GREEN_BALANCE,
+	.name	= "Green Balance",
+	.type	= V4L2_CTRL_TYPE_INTEGER,
+	.min	= 0,
+	.max	= 0x7ff,
+	.step	= 1,
+	.def	= MT9M111_GREEN_GAIN_DEFAULT,
+	.flags	= V4L2_CTRL_FLAG_SLIDER,
+};
+
+int mt9m111_probe(struct sd *sd)
+{
+	u8 data[2] = {0x00, 0x00};
+	int i, err;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+	if (force_sensor) {
+		if (force_sensor == MT9M111_SENSOR) {
+			pr_info("Forcing a %s sensor\n", mt9m111.name);
+			goto sensor_found;
+		}
+		/* If we want to force another sensor, don't try to probe this
+		 * one */
+		return -ENODEV;
+	}
+
+	gspca_dbg(gspca_dev, D_PROBE, "Probing for a mt9m111 sensor\n");
+
+	/* Do the preinit */
+	for (i = 0; i < ARRAY_SIZE(preinit_mt9m111); i++) {
+		if (preinit_mt9m111[i][0] == BRIDGE) {
+			err = m5602_write_bridge(sd,
+					preinit_mt9m111[i][1],
+					preinit_mt9m111[i][2]);
+		} else {
+			data[0] = preinit_mt9m111[i][2];
+			data[1] = preinit_mt9m111[i][3];
+			err = m5602_write_sensor(sd,
+					preinit_mt9m111[i][1], data, 2);
+		}
+		if (err < 0)
+			return err;
+	}
+
+	if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2))
+		return -ENODEV;
+
+	if ((data[0] == 0x14) && (data[1] == 0x3a)) {
+		pr_info("Detected a mt9m111 sensor\n");
+		goto sensor_found;
+	}
+
+	return -ENODEV;
+
+sensor_found:
+	sd->gspca_dev.cam.cam_mode = mt9m111_modes;
+	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes);
+
+	return 0;
+}
+
+int mt9m111_init(struct sd *sd)
+{
+	int i, err = 0;
+
+	/* Init the sensor */
+	for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) {
+		u8 data[2];
+
+		if (init_mt9m111[i][0] == BRIDGE) {
+			err = m5602_write_bridge(sd,
+				init_mt9m111[i][1],
+				init_mt9m111[i][2]);
+		} else {
+			data[0] = init_mt9m111[i][2];
+			data[1] = init_mt9m111[i][3];
+			err = m5602_write_sensor(sd,
+				init_mt9m111[i][1], data, 2);
+		}
+	}
+
+	if (dump_sensor)
+		mt9m111_dump_registers(sd);
+
+	return 0;
+}
+
+int mt9m111_init_controls(struct sd *sd)
+{
+	struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
+
+	sd->gspca_dev.vdev.ctrl_handler = hdl;
+	v4l2_ctrl_handler_init(hdl, 7);
+
+	sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
+					       V4L2_CID_AUTO_WHITE_BALANCE,
+					       0, 1, 1, 0);
+	sd->green_bal = v4l2_ctrl_new_custom(hdl, &mt9m111_greenbal_cfg, NULL);
+	sd->red_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
+					V4L2_CID_RED_BALANCE, 0, 0x7ff, 1,
+					MT9M111_RED_GAIN_DEFAULT);
+	sd->blue_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
+					V4L2_CID_BLUE_BALANCE, 0, 0x7ff, 1,
+					MT9M111_BLUE_GAIN_DEFAULT);
+
+	v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_GAIN, 0,
+			  (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2, 1,
+			  MT9M111_DEFAULT_GAIN);
+
+	sd->hflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_HFLIP,
+				      0, 1, 1, 0);
+	sd->vflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_VFLIP,
+				      0, 1, 1, 0);
+
+	if (hdl->error) {
+		pr_err("Could not initialize controls\n");
+		return hdl->error;
+	}
+
+	v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false);
+	v4l2_ctrl_cluster(2, &sd->hflip);
+
+	return 0;
+}
+
+int mt9m111_start(struct sd *sd)
+{
+	int i, err = 0;
+	u8 data[2];
+	struct cam *cam = &sd->gspca_dev.cam;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+	int width = cam->cam_mode[sd->gspca_dev.curr_mode].width - 1;
+	int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
+
+	for (i = 0; i < ARRAY_SIZE(start_mt9m111) && !err; i++) {
+		if (start_mt9m111[i][0] == BRIDGE) {
+			err = m5602_write_bridge(sd,
+				start_mt9m111[i][1],
+				start_mt9m111[i][2]);
+		} else {
+			data[0] = start_mt9m111[i][2];
+			data[1] = start_mt9m111[i][3];
+			err = m5602_write_sensor(sd,
+				start_mt9m111[i][1], data, 2);
+		}
+	}
+	if (err < 0)
+		return err;
+
+	err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
+	if (err < 0)
+		return err;
+
+	err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
+	if (err < 0)
+		return err;
+
+	for (i = 0; i < 2 && !err; i++)
+		err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
+	if (err < 0)
+		return err;
+
+	err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
+	if (err < 0)
+		return err;
+
+	err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2);
+	if (err < 0)
+		return err;
+
+	for (i = 0; i < 2 && !err; i++)
+		err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0);
+	if (err < 0)
+		return err;
+
+	err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
+				 (width >> 8) & 0xff);
+	if (err < 0)
+		return err;
+
+	err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, width & 0xff);
+	if (err < 0)
+		return err;
+
+	err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
+	if (err < 0)
+		return err;
+
+	switch (width) {
+	case 640:
+		gspca_dbg(gspca_dev, D_CONF, "Configuring camera for VGA mode\n");
+		break;
+
+	case 320:
+		gspca_dbg(gspca_dev, D_CONF, "Configuring camera for QVGA mode\n");
+		break;
+	}
+	return err;
+}
+
+void mt9m111_disconnect(struct sd *sd)
+{
+	sd->sensor = NULL;
+}
+
+static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev)
+{
+	int err;
+	u8 data[2] = {0x00, 0x00};
+	struct sd *sd = (struct sd *) gspca_dev;
+	int hflip;
+	int vflip;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set hvflip to %d %d\n",
+		  sd->hflip->val, sd->vflip->val);
+
+	/* The mt9m111 is flipped by default */
+	hflip = !sd->hflip->val;
+	vflip = !sd->vflip->val;
+
+	/* Set the correct page map */
+	err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
+	if (err < 0)
+		return err;
+
+	data[0] = MT9M111_RMB_OVER_SIZED;
+	if (gspca_dev->pixfmt.width == 640) {
+		data[1] = MT9M111_RMB_ROW_SKIP_2X |
+			  MT9M111_RMB_COLUMN_SKIP_2X |
+			  (hflip << 1) | vflip;
+	} else {
+		data[1] = MT9M111_RMB_ROW_SKIP_4X |
+			  MT9M111_RMB_COLUMN_SKIP_4X |
+			  (hflip << 1) | vflip;
+	}
+	err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
+					data, 2);
+	return err;
+}
+
+static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
+					  __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int err;
+	u8 data[2];
+
+	err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
+	if (err < 0)
+		return err;
+
+	data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1));
+
+	err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
+
+	gspca_dbg(gspca_dev, D_CONF, "Set auto white balance %d\n", val);
+	return err;
+}
+
+static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err, tmp;
+	u8 data[2] = {0x00, 0x00};
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	/* Set the correct page map */
+	err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
+	if (err < 0)
+		return err;
+
+	if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2)
+		return -EINVAL;
+
+	if ((val >= INITIAL_MAX_GAIN * 2 * 2) &&
+	    (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2))
+		tmp = (1 << 10) | (val << 9) |
+				(val << 8) | (val / 8);
+	else if ((val >= INITIAL_MAX_GAIN * 2) &&
+		 (val <  INITIAL_MAX_GAIN * 2 * 2))
+		tmp = (1 << 9) | (1 << 8) | (val / 4);
+	else if ((val >= INITIAL_MAX_GAIN) &&
+		 (val < INITIAL_MAX_GAIN * 2))
+		tmp = (1 << 8) | (val / 2);
+	else
+		tmp = val;
+
+	data[1] = (tmp & 0xff);
+	data[0] = (tmp & 0xff00) >> 8;
+	gspca_dbg(gspca_dev, D_CONF, "tmp=%d, data[1]=%d, data[0]=%d\n", tmp,
+		  data[1], data[0]);
+
+	err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN,
+				   data, 2);
+
+	return err;
+}
+
+static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	u8 data[2];
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	data[1] = (val & 0xff);
+	data[0] = (val & 0xff00) >> 8;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set green balance %d\n", val);
+	err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN,
+				 data, 2);
+	if (err < 0)
+		return err;
+
+	return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN,
+				  data, 2);
+}
+
+static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+	u8 data[2];
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	data[1] = (val & 0xff);
+	data[0] = (val & 0xff00) >> 8;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set blue balance %d\n", val);
+
+	return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN,
+				  data, 2);
+}
+
+static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+	u8 data[2];
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	data[1] = (val & 0xff);
+	data[0] = (val & 0xff00) >> 8;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set red balance %d\n", val);
+
+	return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN,
+				  data, 2);
+}
+
+static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct gspca_dev *gspca_dev =
+		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+	struct sd *sd = (struct sd *) gspca_dev;
+	int err;
+
+	if (!gspca_dev->streaming)
+		return 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUTO_WHITE_BALANCE:
+		err = mt9m111_set_auto_white_balance(gspca_dev, ctrl->val);
+		if (err || ctrl->val)
+			return err;
+		err = mt9m111_set_green_balance(gspca_dev, sd->green_bal->val);
+		if (err)
+			return err;
+		err = mt9m111_set_red_balance(gspca_dev, sd->red_bal->val);
+		if (err)
+			return err;
+		err = mt9m111_set_blue_balance(gspca_dev, sd->blue_bal->val);
+		break;
+	case V4L2_CID_GAIN:
+		err = mt9m111_set_gain(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_HFLIP:
+		err = mt9m111_set_hvflip(gspca_dev);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return err;
+}
+
+static void mt9m111_dump_registers(struct sd *sd)
+{
+	u8 address, value[2] = {0x00, 0x00};
+
+	pr_info("Dumping the mt9m111 register state\n");
+
+	pr_info("Dumping the mt9m111 sensor core registers\n");
+	value[1] = MT9M111_SENSOR_CORE;
+	m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
+	for (address = 0; address < 0xff; address++) {
+		m5602_read_sensor(sd, address, value, 2);
+		pr_info("register 0x%x contains 0x%x%x\n",
+			address, value[0], value[1]);
+	}
+
+	pr_info("Dumping the mt9m111 color pipeline registers\n");
+	value[1] = MT9M111_COLORPIPE;
+	m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
+	for (address = 0; address < 0xff; address++) {
+		m5602_read_sensor(sd, address, value, 2);
+		pr_info("register 0x%x contains 0x%x%x\n",
+			address, value[0], value[1]);
+	}
+
+	pr_info("Dumping the mt9m111 camera control registers\n");
+	value[1] = MT9M111_CAMERA_CONTROL;
+	m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
+	for (address = 0; address < 0xff; address++) {
+		m5602_read_sensor(sd, address, value, 2);
+		pr_info("register 0x%x contains 0x%x%x\n",
+			address, value[0], value[1]);
+	}
+
+	pr_info("mt9m111 register state dump complete\n");
+}