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, 684 insertions, 0 deletions

diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c
new file mode 100644
index 000000000..2a8691a0d
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-dvb.c
@@ -0,0 +1,684 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <media/v4l2-common.h>
+#include <media/tuner.h>
+
+#include "au8522.h"
+#include "xc5000.h"
+#include "mxl5007t.h"
+#include "tda18271.h"
+
+static int preallocate_big_buffers;
+module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
+MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+#define _AU0828_BULKPIPE 0x83
+#define _BULKPIPESIZE 0xe522
+
+static u8 hauppauge_hvr950q_led_states[] = {
+	0x00, /* off */
+	0x02, /* yellow */
+	0x04, /* green */
+};
+
+static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
+	.gpio_output = 0x00e0,
+	.gpio_output_enable  = 0x6006,
+	.gpio_output_disable = 0x0660,
+
+	.gpio_leds = 0x00e2,
+	.led_states  = hauppauge_hvr950q_led_states,
+	.num_led_states = sizeof(hauppauge_hvr950q_led_states),
+
+	.vsb8_strong   = 20 /* dB */ * 10,
+	.qam64_strong  = 25 /* dB */ * 10,
+	.qam256_strong = 32 /* dB */ * 10,
+};
+
+static struct au8522_config hauppauge_hvr950q_config = {
+	.demod_address = 0x8e >> 1,
+	.status_mode   = AU8522_DEMODLOCKING,
+	.qam_if        = AU8522_IF_6MHZ,
+	.vsb_if        = AU8522_IF_6MHZ,
+	.led_cfg       = &hauppauge_hvr950q_led_cfg,
+};
+
+static struct au8522_config fusionhdtv7usb_config = {
+	.demod_address = 0x8e >> 1,
+	.status_mode   = AU8522_DEMODLOCKING,
+	.qam_if        = AU8522_IF_6MHZ,
+	.vsb_if        = AU8522_IF_6MHZ,
+};
+
+static struct au8522_config hauppauge_woodbury_config = {
+	.demod_address = 0x8e >> 1,
+	.status_mode   = AU8522_DEMODLOCKING,
+	.qam_if        = AU8522_IF_4MHZ,
+	.vsb_if        = AU8522_IF_3_25MHZ,
+};
+
+static struct xc5000_config hauppauge_xc5000a_config = {
+	.i2c_address      = 0x61,
+	.if_khz           = 6000,
+	.chip_id          = XC5000A,
+	.output_amp       = 0x8f,
+};
+
+static struct xc5000_config hauppauge_xc5000c_config = {
+	.i2c_address      = 0x61,
+	.if_khz           = 6000,
+	.chip_id          = XC5000C,
+	.output_amp       = 0x8f,
+};
+
+static struct mxl5007t_config mxl5007t_hvr950q_config = {
+	.xtal_freq_hz = MxL_XTAL_24_MHZ,
+	.if_freq_hz = MxL_IF_6_MHZ,
+};
+
+static struct tda18271_config hauppauge_woodbury_tunerconfig = {
+	.gate    = TDA18271_GATE_DIGITAL,
+};
+
+static void au0828_restart_dvb_streaming(struct work_struct *work);
+
+static void au0828_bulk_timeout(struct timer_list *t)
+{
+	struct au0828_dev *dev = from_timer(dev, t, bulk_timeout);
+
+	dprintk(1, "%s called\n", __func__);
+	dev->bulk_timeout_running = 0;
+	schedule_work(&dev->restart_streaming);
+}
+
+/*-------------------------------------------------------------------*/
+static void urb_completion(struct urb *purb)
+{
+	struct au0828_dev *dev = purb->context;
+	int ptype = usb_pipetype(purb->pipe);
+	unsigned char *ptr;
+
+	dprintk(2, "%s: %d\n", __func__, purb->actual_length);
+
+	if (!dev) {
+		dprintk(2, "%s: no dev!\n", __func__);
+		return;
+	}
+
+	if (!dev->urb_streaming) {
+		dprintk(2, "%s: not streaming!\n", __func__);
+		return;
+	}
+
+	if (ptype != PIPE_BULK) {
+		pr_err("%s: Unsupported URB type %d\n",
+		       __func__, ptype);
+		return;
+	}
+
+	/* See if the stream is corrupted (to work around a hardware
+	   bug where the stream gets misaligned */
+	ptr = purb->transfer_buffer;
+	if (purb->actual_length > 0 && ptr[0] != 0x47) {
+		dprintk(1, "Need to restart streaming %02x len=%d!\n",
+			ptr[0], purb->actual_length);
+		schedule_work(&dev->restart_streaming);
+		return;
+	} else if (dev->bulk_timeout_running == 1) {
+		/* The URB handler has fired, so cancel timer which would
+		 * restart endpoint if we hadn't
+		 */
+		dprintk(1, "%s cancelling bulk timeout\n", __func__);
+		dev->bulk_timeout_running = 0;
+		del_timer(&dev->bulk_timeout);
+	}
+
+	/* Feed the transport payload into the kernel demux */
+	dvb_dmx_swfilter_packets(&dev->dvb.demux,
+		purb->transfer_buffer, purb->actual_length / 188);
+
+	/* Clean the buffer before we requeue */
+	memset(purb->transfer_buffer, 0, URB_BUFSIZE);
+
+	/* Requeue URB */
+	usb_submit_urb(purb, GFP_ATOMIC);
+}
+
+static int stop_urb_transfer(struct au0828_dev *dev)
+{
+	int i;
+
+	dprintk(2, "%s()\n", __func__);
+
+	if (!dev->urb_streaming)
+		return 0;
+
+	if (dev->bulk_timeout_running == 1) {
+		dev->bulk_timeout_running = 0;
+		del_timer(&dev->bulk_timeout);
+	}
+
+	dev->urb_streaming = false;
+	for (i = 0; i < URB_COUNT; i++) {
+		if (dev->urbs[i]) {
+			usb_kill_urb(dev->urbs[i]);
+			if (!preallocate_big_buffers)
+				kfree(dev->urbs[i]->transfer_buffer);
+
+			usb_free_urb(dev->urbs[i]);
+		}
+	}
+
+	return 0;
+}
+
+static int start_urb_transfer(struct au0828_dev *dev)
+{
+	struct urb *purb;
+	int i, ret;
+
+	dprintk(2, "%s()\n", __func__);
+
+	if (dev->urb_streaming) {
+		dprintk(2, "%s: bulk xfer already running!\n", __func__);
+		return 0;
+	}
+
+	for (i = 0; i < URB_COUNT; i++) {
+
+		dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!dev->urbs[i])
+			return -ENOMEM;
+
+		purb = dev->urbs[i];
+
+		if (preallocate_big_buffers)
+			purb->transfer_buffer = dev->dig_transfer_buffer[i];
+		else
+			purb->transfer_buffer = kzalloc(URB_BUFSIZE,
+					GFP_KERNEL);
+
+		if (!purb->transfer_buffer) {
+			usb_free_urb(purb);
+			dev->urbs[i] = NULL;
+			ret = -ENOMEM;
+			pr_err("%s: failed big buffer allocation, err = %d\n",
+			       __func__, ret);
+			return ret;
+		}
+
+		purb->status = -EINPROGRESS;
+		usb_fill_bulk_urb(purb,
+				  dev->usbdev,
+				  usb_rcvbulkpipe(dev->usbdev,
+					_AU0828_BULKPIPE),
+				  purb->transfer_buffer,
+				  URB_BUFSIZE,
+				  urb_completion,
+				  dev);
+
+	}
+
+	for (i = 0; i < URB_COUNT; i++) {
+		ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
+		if (ret != 0) {
+			stop_urb_transfer(dev);
+			pr_err("%s: failed urb submission, err = %d\n",
+			       __func__, ret);
+			return ret;
+		}
+	}
+
+	dev->urb_streaming = true;
+
+	/* If we don't valid data within 1 second, restart stream */
+	mod_timer(&dev->bulk_timeout, jiffies + (HZ));
+	dev->bulk_timeout_running = 1;
+
+	return 0;
+}
+
+static void au0828_start_transport(struct au0828_dev *dev)
+{
+	au0828_write(dev, 0x608, 0x90);
+	au0828_write(dev, 0x609, 0x72);
+	au0828_write(dev, 0x60a, 0x71);
+	au0828_write(dev, 0x60b, 0x01);
+
+}
+
+static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
+{
+	if (full_stop) {
+		au0828_write(dev, 0x608, 0x00);
+		au0828_write(dev, 0x609, 0x00);
+		au0828_write(dev, 0x60a, 0x00);
+	}
+	au0828_write(dev, 0x60b, 0x00);
+}
+
+static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret = 0;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (!demux->dmx.frontend)
+		return -EINVAL;
+
+	if (dvb->frontend) {
+		mutex_lock(&dvb->lock);
+		dvb->start_count++;
+		dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
+			dvb->start_count, dvb->stop_count);
+		if (dvb->feeding++ == 0) {
+			/* Start transport */
+			au0828_start_transport(dev);
+			ret = start_urb_transfer(dev);
+			if (ret < 0) {
+				au0828_stop_transport(dev, 0);
+				dvb->feeding--;	/* We ran out of memory... */
+			}
+		}
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret = 0;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (dvb->frontend) {
+		cancel_work_sync(&dev->restart_streaming);
+
+		mutex_lock(&dvb->lock);
+		dvb->stop_count++;
+		dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
+			dvb->start_count, dvb->stop_count);
+		if (dvb->feeding > 0) {
+			dvb->feeding--;
+			if (dvb->feeding == 0) {
+				/* Stop transport */
+				ret = stop_urb_transfer(dev);
+				au0828_stop_transport(dev, 0);
+			}
+		}
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+static void au0828_restart_dvb_streaming(struct work_struct *work)
+{
+	struct au0828_dev *dev = container_of(work, struct au0828_dev,
+					      restart_streaming);
+	struct au0828_dvb *dvb = &dev->dvb;
+
+	if (!dev->urb_streaming)
+		return;
+
+	dprintk(1, "Restarting streaming...!\n");
+
+	mutex_lock(&dvb->lock);
+
+	/* Stop transport */
+	stop_urb_transfer(dev);
+	au0828_stop_transport(dev, 1);
+
+	/* Start transport */
+	au0828_start_transport(dev);
+	start_urb_transfer(dev);
+
+	mutex_unlock(&dvb->lock);
+}
+
+static int au0828_set_frontend(struct dvb_frontend *fe)
+{
+	struct au0828_dev *dev = fe->dvb->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret, was_streaming;
+
+	mutex_lock(&dvb->lock);
+	was_streaming = dev->urb_streaming;
+	if (was_streaming) {
+		au0828_stop_transport(dev, 1);
+
+		/*
+		 * We can't hold a mutex here, as the restart_streaming
+		 * kthread may also hold it.
+		 */
+		mutex_unlock(&dvb->lock);
+		cancel_work_sync(&dev->restart_streaming);
+		mutex_lock(&dvb->lock);
+
+		stop_urb_transfer(dev);
+	}
+	mutex_unlock(&dvb->lock);
+
+	ret = dvb->set_frontend(fe);
+
+	if (was_streaming) {
+		mutex_lock(&dvb->lock);
+		au0828_start_transport(dev);
+		start_urb_transfer(dev);
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+static int dvb_register(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int result;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (preallocate_big_buffers) {
+		int i;
+		for (i = 0; i < URB_COUNT; i++) {
+			dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
+					GFP_KERNEL);
+
+			if (!dev->dig_transfer_buffer[i]) {
+				result = -ENOMEM;
+
+				pr_err("failed buffer allocation (errno = %d)\n",
+				       result);
+				goto fail_adapter;
+			}
+		}
+	}
+
+	INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
+
+	/* register adapter */
+	result = dvb_register_adapter(&dvb->adapter,
+				      KBUILD_MODNAME, THIS_MODULE,
+				      &dev->usbdev->dev, adapter_nr);
+	if (result < 0) {
+		pr_err("dvb_register_adapter failed (errno = %d)\n",
+		       result);
+		goto fail_adapter;
+	}
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	dvb->adapter.mdev = dev->media_dev;
+#endif
+
+	dvb->adapter.priv = dev;
+
+	/* register frontend */
+	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
+	if (result < 0) {
+		pr_err("dvb_register_frontend failed (errno = %d)\n",
+		       result);
+		goto fail_frontend;
+	}
+
+	/* Hook dvb frontend */
+	dvb->set_frontend = dvb->frontend->ops.set_frontend;
+	dvb->frontend->ops.set_frontend = au0828_set_frontend;
+
+	/* register demux stuff */
+	dvb->demux.dmx.capabilities =
+		DMX_TS_FILTERING | DMX_SECTION_FILTERING |
+		DMX_MEMORY_BASED_FILTERING;
+	dvb->demux.priv       = dev;
+	dvb->demux.filternum  = 256;
+	dvb->demux.feednum    = 256;
+	dvb->demux.start_feed = au0828_dvb_start_feed;
+	dvb->demux.stop_feed  = au0828_dvb_stop_feed;
+	result = dvb_dmx_init(&dvb->demux);
+	if (result < 0) {
+		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
+		goto fail_dmx;
+	}
+
+	dvb->dmxdev.filternum    = 256;
+	dvb->dmxdev.demux        = &dvb->demux.dmx;
+	dvb->dmxdev.capabilities = 0;
+	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
+	if (result < 0) {
+		pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
+		goto fail_dmxdev;
+	}
+
+	dvb->fe_hw.source = DMX_FRONTEND_0;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
+		       result);
+		goto fail_fe_hw;
+	}
+
+	dvb->fe_mem.source = DMX_MEMORY_FE;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	if (result < 0) {
+		pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
+		       result);
+		goto fail_fe_mem;
+	}
+
+	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		pr_err("connect_frontend failed (errno = %d)\n", result);
+		goto fail_fe_conn;
+	}
+
+	/* register network adapter */
+	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
+
+	dvb->start_count = 0;
+	dvb->stop_count = 0;
+
+	result = dvb_create_media_graph(&dvb->adapter, false);
+	if (result < 0)
+		goto fail_create_graph;
+
+	return 0;
+
+fail_create_graph:
+	dvb_net_release(&dvb->net);
+fail_fe_conn:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+fail_fe_mem:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+fail_fe_hw:
+	dvb_dmxdev_release(&dvb->dmxdev);
+fail_dmxdev:
+	dvb_dmx_release(&dvb->demux);
+fail_dmx:
+	dvb_unregister_frontend(dvb->frontend);
+fail_frontend:
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+fail_adapter:
+
+	if (preallocate_big_buffers) {
+		int i;
+		for (i = 0; i < URB_COUNT; i++)
+			kfree(dev->dig_transfer_buffer[i]);
+	}
+
+	return result;
+}
+
+void au0828_dvb_unregister(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (dvb->frontend == NULL)
+		return;
+
+	cancel_work_sync(&dev->restart_streaming);
+
+	dvb_net_release(&dvb->net);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	dvb_dmxdev_release(&dvb->dmxdev);
+	dvb_dmx_release(&dvb->demux);
+	dvb_unregister_frontend(dvb->frontend);
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+
+	if (preallocate_big_buffers) {
+		int i;
+		for (i = 0; i < URB_COUNT; i++)
+			kfree(dev->dig_transfer_buffer[i]);
+	}
+	dvb->frontend = NULL;
+}
+
+/* All the DVB attach calls go here, this function gets modified
+ * for each new card. No other function in this file needs
+ * to change.
+ */
+int au0828_dvb_register(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret;
+
+	dprintk(1, "%s()\n", __func__);
+
+	/* init frontend */
+	switch (dev->boardnr) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&hauppauge_hvr950q_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL)
+			switch (dev->board.tuner_type) {
+			default:
+			case TUNER_XC5000:
+				dvb_attach(xc5000_attach, dvb->frontend,
+					   &dev->i2c_adap,
+					   &hauppauge_xc5000a_config);
+				break;
+			case TUNER_XC5000C:
+				dvb_attach(xc5000_attach, dvb->frontend,
+					   &dev->i2c_adap,
+					   &hauppauge_xc5000c_config);
+				break;
+			}
+		break;
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&hauppauge_hvr950q_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL)
+			dvb_attach(mxl5007t_attach, dvb->frontend,
+				   &dev->i2c_adap, 0x60,
+				   &mxl5007t_hvr950q_config);
+		break;
+	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&hauppauge_woodbury_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL)
+			dvb_attach(tda18271_attach, dvb->frontend,
+				   0x60, &dev->i2c_adap,
+				   &hauppauge_woodbury_tunerconfig);
+		break;
+	case AU0828_BOARD_DVICO_FUSIONHDTV7:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&fusionhdtv7usb_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL) {
+			dvb_attach(xc5000_attach, dvb->frontend,
+				&dev->i2c_adap,
+				&hauppauge_xc5000a_config);
+		}
+		break;
+	default:
+		pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
+		break;
+	}
+	if (NULL == dvb->frontend) {
+		pr_err("%s() Frontend initialization failed\n",
+		       __func__);
+		return -1;
+	}
+	/* define general-purpose callback pointer */
+	dvb->frontend->callback = au0828_tuner_callback;
+
+	/* register everything */
+	ret = dvb_register(dev);
+	if (ret < 0) {
+		if (dvb->frontend->ops.release)
+			dvb->frontend->ops.release(dvb->frontend);
+		dvb->frontend = NULL;
+		return ret;
+	}
+
+	timer_setup(&dev->bulk_timeout, au0828_bulk_timeout, 0);
+
+	return 0;
+}
+
+void au0828_dvb_suspend(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int rc;
+
+	if (dvb->frontend) {
+		if (dev->urb_streaming) {
+			cancel_work_sync(&dev->restart_streaming);
+			/* Stop transport */
+			mutex_lock(&dvb->lock);
+			stop_urb_transfer(dev);
+			au0828_stop_transport(dev, 1);
+			mutex_unlock(&dvb->lock);
+			dev->need_urb_start = true;
+		}
+		/* suspend frontend - does tuner and fe to sleep */
+		rc = dvb_frontend_suspend(dvb->frontend);
+		pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
+	}
+}
+
+void au0828_dvb_resume(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int rc;
+
+	if (dvb->frontend) {
+		/* resume frontend - does fe and tuner init */
+		rc = dvb_frontend_resume(dvb->frontend);
+		pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
+		if (dev->need_urb_start) {
+			/* Start transport */
+			mutex_lock(&dvb->lock);
+			au0828_start_transport(dev);
+			start_urb_transfer(dev);
+			mutex_unlock(&dvb->lock);
+		}
+	}
+}