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, 934 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/s5h1411.c b/drivers/media/dvb-frontends/s5h1411.c
new file mode 100644
index 000000000..2563a72e9
--- /dev/null
+++ b/drivers/media/dvb-frontends/s5h1411.c
@@ -0,0 +1,934 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+    Samsung S5H1411 VSB/QAM demodulator driver
+
+    Copyright (C) 2008 Steven Toth <stoth@linuxtv.org>
+
+
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <media/dvb_frontend.h>
+#include "s5h1411.h"
+
+struct s5h1411_state {
+
+	struct i2c_adapter *i2c;
+
+	/* configuration settings */
+	const struct s5h1411_config *config;
+
+	struct dvb_frontend frontend;
+
+	enum fe_modulation current_modulation;
+	unsigned int first_tune:1;
+
+	u32 current_frequency;
+	int if_freq;
+
+	u8 inversion;
+};
+
+static int debug;
+
+#define dprintk(arg...) do {	\
+	if (debug)		\
+		printk(arg);	\
+} while (0)
+
+/* Register values to initialise the demod, defaults to VSB */
+static struct init_tab {
+	u8	addr;
+	u8	reg;
+	u16	data;
+} init_tab[] = {
+	{ S5H1411_I2C_TOP_ADDR, 0x00, 0x0071, },
+	{ S5H1411_I2C_TOP_ADDR, 0x08, 0x0047, },
+	{ S5H1411_I2C_TOP_ADDR, 0x1c, 0x0400, },
+	{ S5H1411_I2C_TOP_ADDR, 0x1e, 0x0370, },
+	{ S5H1411_I2C_TOP_ADDR, 0x1f, 0x342c, },
+	{ S5H1411_I2C_TOP_ADDR, 0x24, 0x0231, },
+	{ S5H1411_I2C_TOP_ADDR, 0x25, 0x1011, },
+	{ S5H1411_I2C_TOP_ADDR, 0x26, 0x0f07, },
+	{ S5H1411_I2C_TOP_ADDR, 0x27, 0x0f04, },
+	{ S5H1411_I2C_TOP_ADDR, 0x28, 0x070f, },
+	{ S5H1411_I2C_TOP_ADDR, 0x29, 0x2820, },
+	{ S5H1411_I2C_TOP_ADDR, 0x2a, 0x102e, },
+	{ S5H1411_I2C_TOP_ADDR, 0x2b, 0x0220, },
+	{ S5H1411_I2C_TOP_ADDR, 0x2e, 0x0d0e, },
+	{ S5H1411_I2C_TOP_ADDR, 0x2f, 0x1013, },
+	{ S5H1411_I2C_TOP_ADDR, 0x31, 0x171b, },
+	{ S5H1411_I2C_TOP_ADDR, 0x32, 0x0e0f, },
+	{ S5H1411_I2C_TOP_ADDR, 0x33, 0x0f10, },
+	{ S5H1411_I2C_TOP_ADDR, 0x34, 0x170e, },
+	{ S5H1411_I2C_TOP_ADDR, 0x35, 0x4b10, },
+	{ S5H1411_I2C_TOP_ADDR, 0x36, 0x0f17, },
+	{ S5H1411_I2C_TOP_ADDR, 0x3c, 0x1577, },
+	{ S5H1411_I2C_TOP_ADDR, 0x3d, 0x081a, },
+	{ S5H1411_I2C_TOP_ADDR, 0x3e, 0x77ee, },
+	{ S5H1411_I2C_TOP_ADDR, 0x40, 0x1e09, },
+	{ S5H1411_I2C_TOP_ADDR, 0x41, 0x0f0c, },
+	{ S5H1411_I2C_TOP_ADDR, 0x42, 0x1f10, },
+	{ S5H1411_I2C_TOP_ADDR, 0x4d, 0x0509, },
+	{ S5H1411_I2C_TOP_ADDR, 0x4e, 0x0a00, },
+	{ S5H1411_I2C_TOP_ADDR, 0x50, 0x0000, },
+	{ S5H1411_I2C_TOP_ADDR, 0x5b, 0x0000, },
+	{ S5H1411_I2C_TOP_ADDR, 0x5c, 0x0008, },
+	{ S5H1411_I2C_TOP_ADDR, 0x57, 0x1101, },
+	{ S5H1411_I2C_TOP_ADDR, 0x65, 0x007c, },
+	{ S5H1411_I2C_TOP_ADDR, 0x68, 0x0512, },
+	{ S5H1411_I2C_TOP_ADDR, 0x69, 0x0258, },
+	{ S5H1411_I2C_TOP_ADDR, 0x70, 0x0004, },
+	{ S5H1411_I2C_TOP_ADDR, 0x71, 0x0007, },
+	{ S5H1411_I2C_TOP_ADDR, 0x76, 0x00a9, },
+	{ S5H1411_I2C_TOP_ADDR, 0x78, 0x3141, },
+	{ S5H1411_I2C_TOP_ADDR, 0x7a, 0x3141, },
+	{ S5H1411_I2C_TOP_ADDR, 0xb3, 0x8003, },
+	{ S5H1411_I2C_TOP_ADDR, 0xb5, 0xa6bb, },
+	{ S5H1411_I2C_TOP_ADDR, 0xb6, 0x0609, },
+	{ S5H1411_I2C_TOP_ADDR, 0xb7, 0x2f06, },
+	{ S5H1411_I2C_TOP_ADDR, 0xb8, 0x003f, },
+	{ S5H1411_I2C_TOP_ADDR, 0xb9, 0x2700, },
+	{ S5H1411_I2C_TOP_ADDR, 0xba, 0xfac8, },
+	{ S5H1411_I2C_TOP_ADDR, 0xbe, 0x1003, },
+	{ S5H1411_I2C_TOP_ADDR, 0xbf, 0x103f, },
+	{ S5H1411_I2C_TOP_ADDR, 0xce, 0x2000, },
+	{ S5H1411_I2C_TOP_ADDR, 0xcf, 0x0800, },
+	{ S5H1411_I2C_TOP_ADDR, 0xd0, 0x0800, },
+	{ S5H1411_I2C_TOP_ADDR, 0xd1, 0x0400, },
+	{ S5H1411_I2C_TOP_ADDR, 0xd2, 0x0800, },
+	{ S5H1411_I2C_TOP_ADDR, 0xd3, 0x2000, },
+	{ S5H1411_I2C_TOP_ADDR, 0xd4, 0x3000, },
+	{ S5H1411_I2C_TOP_ADDR, 0xdb, 0x4a9b, },
+	{ S5H1411_I2C_TOP_ADDR, 0xdc, 0x1000, },
+	{ S5H1411_I2C_TOP_ADDR, 0xde, 0x0001, },
+	{ S5H1411_I2C_TOP_ADDR, 0xdf, 0x0000, },
+	{ S5H1411_I2C_TOP_ADDR, 0xe3, 0x0301, },
+	{ S5H1411_I2C_QAM_ADDR, 0xf3, 0x0000, },
+	{ S5H1411_I2C_QAM_ADDR, 0xf3, 0x0001, },
+	{ S5H1411_I2C_QAM_ADDR, 0x08, 0x0600, },
+	{ S5H1411_I2C_QAM_ADDR, 0x18, 0x4201, },
+	{ S5H1411_I2C_QAM_ADDR, 0x1e, 0x6476, },
+	{ S5H1411_I2C_QAM_ADDR, 0x21, 0x0830, },
+	{ S5H1411_I2C_QAM_ADDR, 0x0c, 0x5679, },
+	{ S5H1411_I2C_QAM_ADDR, 0x0d, 0x579b, },
+	{ S5H1411_I2C_QAM_ADDR, 0x24, 0x0102, },
+	{ S5H1411_I2C_QAM_ADDR, 0x31, 0x7488, },
+	{ S5H1411_I2C_QAM_ADDR, 0x32, 0x0a08, },
+	{ S5H1411_I2C_QAM_ADDR, 0x3d, 0x8689, },
+	{ S5H1411_I2C_QAM_ADDR, 0x49, 0x0048, },
+	{ S5H1411_I2C_QAM_ADDR, 0x57, 0x2012, },
+	{ S5H1411_I2C_QAM_ADDR, 0x5d, 0x7676, },
+	{ S5H1411_I2C_QAM_ADDR, 0x04, 0x0400, },
+	{ S5H1411_I2C_QAM_ADDR, 0x58, 0x00c0, },
+	{ S5H1411_I2C_QAM_ADDR, 0x5b, 0x0100, },
+};
+
+/* VSB SNR lookup table */
+static struct vsb_snr_tab {
+	u16	val;
+	u16	data;
+} vsb_snr_tab[] = {
+	{  0x39f, 300, },
+	{  0x39b, 295, },
+	{  0x397, 290, },
+	{  0x394, 285, },
+	{  0x38f, 280, },
+	{  0x38b, 275, },
+	{  0x387, 270, },
+	{  0x382, 265, },
+	{  0x37d, 260, },
+	{  0x377, 255, },
+	{  0x370, 250, },
+	{  0x36a, 245, },
+	{  0x364, 240, },
+	{  0x35b, 235, },
+	{  0x353, 230, },
+	{  0x349, 225, },
+	{  0x340, 220, },
+	{  0x337, 215, },
+	{  0x327, 210, },
+	{  0x31b, 205, },
+	{  0x310, 200, },
+	{  0x302, 195, },
+	{  0x2f3, 190, },
+	{  0x2e4, 185, },
+	{  0x2d7, 180, },
+	{  0x2cd, 175, },
+	{  0x2bb, 170, },
+	{  0x2a9, 165, },
+	{  0x29e, 160, },
+	{  0x284, 155, },
+	{  0x27a, 150, },
+	{  0x260, 145, },
+	{  0x23a, 140, },
+	{  0x224, 135, },
+	{  0x213, 130, },
+	{  0x204, 125, },
+	{  0x1fe, 120, },
+	{      0,   0, },
+};
+
+/* QAM64 SNR lookup table */
+static struct qam64_snr_tab {
+	u16	val;
+	u16	data;
+} qam64_snr_tab[] = {
+	{  0x0001,   0, },
+	{  0x0af0, 300, },
+	{  0x0d80, 290, },
+	{  0x10a0, 280, },
+	{  0x14b5, 270, },
+	{  0x1590, 268, },
+	{  0x1680, 266, },
+	{  0x17b0, 264, },
+	{  0x18c0, 262, },
+	{  0x19b0, 260, },
+	{  0x1ad0, 258, },
+	{  0x1d00, 256, },
+	{  0x1da0, 254, },
+	{  0x1ef0, 252, },
+	{  0x2050, 250, },
+	{  0x20f0, 249, },
+	{  0x21d0, 248, },
+	{  0x22b0, 247, },
+	{  0x23a0, 246, },
+	{  0x2470, 245, },
+	{  0x24f0, 244, },
+	{  0x25a0, 243, },
+	{  0x26c0, 242, },
+	{  0x27b0, 241, },
+	{  0x28d0, 240, },
+	{  0x29b0, 239, },
+	{  0x2ad0, 238, },
+	{  0x2ba0, 237, },
+	{  0x2c80, 236, },
+	{  0x2d20, 235, },
+	{  0x2e00, 234, },
+	{  0x2f10, 233, },
+	{  0x3050, 232, },
+	{  0x3190, 231, },
+	{  0x3300, 230, },
+	{  0x3340, 229, },
+	{  0x3200, 228, },
+	{  0x3550, 227, },
+	{  0x3610, 226, },
+	{  0x3600, 225, },
+	{  0x3700, 224, },
+	{  0x3800, 223, },
+	{  0x3920, 222, },
+	{  0x3a20, 221, },
+	{  0x3b30, 220, },
+	{  0x3d00, 219, },
+	{  0x3e00, 218, },
+	{  0x4000, 217, },
+	{  0x4100, 216, },
+	{  0x4300, 215, },
+	{  0x4400, 214, },
+	{  0x4600, 213, },
+	{  0x4700, 212, },
+	{  0x4800, 211, },
+	{  0x4a00, 210, },
+	{  0x4b00, 209, },
+	{  0x4d00, 208, },
+	{  0x4f00, 207, },
+	{  0x5050, 206, },
+	{  0x5200, 205, },
+	{  0x53c0, 204, },
+	{  0x5450, 203, },
+	{  0x5650, 202, },
+	{  0x5820, 201, },
+	{  0x6000, 200, },
+	{  0xffff,   0, },
+};
+
+/* QAM256 SNR lookup table */
+static struct qam256_snr_tab {
+	u16	val;
+	u16	data;
+} qam256_snr_tab[] = {
+	{  0x0001,   0, },
+	{  0x0970, 400, },
+	{  0x0a90, 390, },
+	{  0x0b90, 380, },
+	{  0x0d90, 370, },
+	{  0x0ff0, 360, },
+	{  0x1240, 350, },
+	{  0x1345, 348, },
+	{  0x13c0, 346, },
+	{  0x14c0, 344, },
+	{  0x1500, 342, },
+	{  0x1610, 340, },
+	{  0x1700, 338, },
+	{  0x1800, 336, },
+	{  0x18b0, 334, },
+	{  0x1900, 332, },
+	{  0x1ab0, 330, },
+	{  0x1bc0, 328, },
+	{  0x1cb0, 326, },
+	{  0x1db0, 324, },
+	{  0x1eb0, 322, },
+	{  0x2030, 320, },
+	{  0x2200, 318, },
+	{  0x2280, 316, },
+	{  0x2410, 314, },
+	{  0x25b0, 312, },
+	{  0x27a0, 310, },
+	{  0x2840, 308, },
+	{  0x29d0, 306, },
+	{  0x2b10, 304, },
+	{  0x2d30, 302, },
+	{  0x2f20, 300, },
+	{  0x30c0, 298, },
+	{  0x3260, 297, },
+	{  0x32c0, 296, },
+	{  0x3300, 295, },
+	{  0x33b0, 294, },
+	{  0x34b0, 293, },
+	{  0x35a0, 292, },
+	{  0x3650, 291, },
+	{  0x3800, 290, },
+	{  0x3900, 289, },
+	{  0x3a50, 288, },
+	{  0x3b30, 287, },
+	{  0x3cb0, 286, },
+	{  0x3e20, 285, },
+	{  0x3fa0, 284, },
+	{  0x40a0, 283, },
+	{  0x41c0, 282, },
+	{  0x42f0, 281, },
+	{  0x44a0, 280, },
+	{  0x4600, 279, },
+	{  0x47b0, 278, },
+	{  0x4900, 277, },
+	{  0x4a00, 276, },
+	{  0x4ba0, 275, },
+	{  0x4d00, 274, },
+	{  0x4f00, 273, },
+	{  0x5000, 272, },
+	{  0x51f0, 272, },
+	{  0x53a0, 270, },
+	{  0x5520, 269, },
+	{  0x5700, 268, },
+	{  0x5800, 267, },
+	{  0x5a00, 266, },
+	{  0x5c00, 265, },
+	{  0x5d00, 264, },
+	{  0x5f00, 263, },
+	{  0x6000, 262, },
+	{  0x6200, 261, },
+	{  0x6400, 260, },
+	{  0xffff,   0, },
+};
+
+/* 8 bit registers, 16 bit values */
+static int s5h1411_writereg(struct s5h1411_state *state,
+	u8 addr, u8 reg, u16 data)
+{
+	int ret;
+	u8 buf[] = { reg, data >> 8,  data & 0xff };
+
+	struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = buf, .len = 3 };
+
+	ret = i2c_transfer(state->i2c, &msg, 1);
+
+	if (ret != 1)
+		printk(KERN_ERR "%s: writereg error 0x%02x 0x%02x 0x%04x, ret == %i)\n",
+		       __func__, addr, reg, data, ret);
+
+	return (ret != 1) ? -1 : 0;
+}
+
+static u16 s5h1411_readreg(struct s5h1411_state *state, u8 addr, u8 reg)
+{
+	int ret;
+	u8 b0[] = { reg };
+	u8 b1[] = { 0, 0 };
+
+	struct i2c_msg msg[] = {
+		{ .addr = addr, .flags = 0, .buf = b0, .len = 1 },
+		{ .addr = addr, .flags = I2C_M_RD, .buf = b1, .len = 2 } };
+
+	ret = i2c_transfer(state->i2c, msg, 2);
+
+	if (ret != 2)
+		printk(KERN_ERR "%s: readreg error (ret == %i)\n",
+			__func__, ret);
+	return (b1[0] << 8) | b1[1];
+}
+
+static int s5h1411_softreset(struct dvb_frontend *fe)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	dprintk("%s()\n", __func__);
+
+	s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf7, 0);
+	s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf7, 1);
+	return 0;
+}
+
+static int s5h1411_set_if_freq(struct dvb_frontend *fe, int KHz)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	dprintk("%s(%d KHz)\n", __func__, KHz);
+
+	switch (KHz) {
+	case 3250:
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x10d5);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0x5342);
+		s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x10d9);
+		break;
+	case 3500:
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x1225);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0x1e96);
+		s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x1225);
+		break;
+	case 4000:
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x14bc);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0xb53e);
+		s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x14bd);
+		break;
+	default:
+		dprintk("%s(%d KHz) Invalid, defaulting to 5380\n",
+			__func__, KHz);
+		fallthrough;
+	case 5380:
+	case 44000:
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x1be4);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0x3655);
+		s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x1be4);
+		break;
+	}
+
+	state->if_freq = KHz;
+
+	return 0;
+}
+
+static int s5h1411_set_mpeg_timing(struct dvb_frontend *fe, int mode)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	u16 val;
+
+	dprintk("%s(%d)\n", __func__, mode);
+
+	val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xbe) & 0xcfff;
+	switch (mode) {
+	case S5H1411_MPEGTIMING_CONTINUOUS_INVERTING_CLOCK:
+		val |= 0x0000;
+		break;
+	case S5H1411_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK:
+		dprintk("%s(%d) Mode1 or Defaulting\n", __func__, mode);
+		val |= 0x1000;
+		break;
+	case S5H1411_MPEGTIMING_NONCONTINUOUS_INVERTING_CLOCK:
+		val |= 0x2000;
+		break;
+	case S5H1411_MPEGTIMING_NONCONTINUOUS_NONINVERTING_CLOCK:
+		val |= 0x3000;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Configure MPEG Signal Timing charactistics */
+	return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xbe, val);
+}
+
+static int s5h1411_set_spectralinversion(struct dvb_frontend *fe, int inversion)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	u16 val;
+
+	dprintk("%s(%d)\n", __func__, inversion);
+	val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0x24) & ~0x1000;
+
+	if (inversion == 1)
+		val |= 0x1000; /* Inverted */
+
+	state->inversion = inversion;
+	return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x24, val);
+}
+
+static int s5h1411_set_serialmode(struct dvb_frontend *fe, int serial)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	u16 val;
+
+	dprintk("%s(%d)\n", __func__, serial);
+	val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xbd) & ~0x100;
+
+	if (serial == 1)
+		val |= 0x100;
+
+	return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xbd, val);
+}
+
+static int s5h1411_enable_modulation(struct dvb_frontend *fe,
+				     enum fe_modulation m)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	dprintk("%s(0x%08x)\n", __func__, m);
+
+	if ((state->first_tune == 0) && (m == state->current_modulation)) {
+		dprintk("%s() Already at desired modulation.  Skipping...\n",
+			__func__);
+		return 0;
+	}
+
+	switch (m) {
+	case VSB_8:
+		dprintk("%s() VSB_8\n", __func__);
+		s5h1411_set_if_freq(fe, state->config->vsb_if);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x00, 0x71);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf6, 0x00);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xcd, 0xf1);
+		break;
+	case QAM_64:
+	case QAM_256:
+	case QAM_AUTO:
+		dprintk("%s() QAM_AUTO (64/256)\n", __func__);
+		s5h1411_set_if_freq(fe, state->config->qam_if);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x00, 0x0171);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf6, 0x0001);
+		s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x16, 0x1101);
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xcd, 0x00f0);
+		break;
+	default:
+		dprintk("%s() Invalid modulation\n", __func__);
+		return -EINVAL;
+	}
+
+	state->current_modulation = m;
+	state->first_tune = 0;
+	s5h1411_softreset(fe);
+
+	return 0;
+}
+
+static int s5h1411_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	dprintk("%s(%d)\n", __func__, enable);
+
+	if (enable)
+		return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 1);
+	else
+		return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 0);
+}
+
+static int s5h1411_set_gpio(struct dvb_frontend *fe, int enable)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	u16 val;
+
+	dprintk("%s(%d)\n", __func__, enable);
+
+	val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xe0) & ~0x02;
+
+	if (enable)
+		return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xe0,
+				val | 0x02);
+	else
+		return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xe0, val);
+}
+
+static int s5h1411_set_powerstate(struct dvb_frontend *fe, int enable)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	dprintk("%s(%d)\n", __func__, enable);
+
+	if (enable)
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf4, 1);
+	else {
+		s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf4, 0);
+		s5h1411_softreset(fe);
+	}
+
+	return 0;
+}
+
+static int s5h1411_sleep(struct dvb_frontend *fe)
+{
+	return s5h1411_set_powerstate(fe, 1);
+}
+
+static int s5h1411_register_reset(struct dvb_frontend *fe)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	dprintk("%s()\n", __func__);
+
+	return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf3, 0);
+}
+
+/* Talk to the demod, set the FEC, GUARD, QAM settings etc */
+static int s5h1411_set_frontend(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	dprintk("%s(frequency=%d)\n", __func__, p->frequency);
+
+	s5h1411_softreset(fe);
+
+	state->current_frequency = p->frequency;
+
+	s5h1411_enable_modulation(fe, p->modulation);
+
+	if (fe->ops.tuner_ops.set_params) {
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 1);
+
+		fe->ops.tuner_ops.set_params(fe);
+
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 0);
+	}
+
+	/* Issue a reset to the demod so it knows to resync against the
+	   newly tuned frequency */
+	s5h1411_softreset(fe);
+
+	return 0;
+}
+
+/* Reset the demod hardware and reset all of the configuration registers
+   to a default state. */
+static int s5h1411_init(struct dvb_frontend *fe)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	int i;
+
+	dprintk("%s()\n", __func__);
+
+	s5h1411_set_powerstate(fe, 0);
+	s5h1411_register_reset(fe);
+
+	for (i = 0; i < ARRAY_SIZE(init_tab); i++)
+		s5h1411_writereg(state, init_tab[i].addr,
+			init_tab[i].reg,
+			init_tab[i].data);
+
+	/* The datasheet says that after initialisation, VSB is default */
+	state->current_modulation = VSB_8;
+
+	/* Although the datasheet says it's in VSB, empirical evidence
+	   shows problems getting lock on the first tuning request.  Make
+	   sure we call enable_modulation the first time around */
+	state->first_tune = 1;
+
+	if (state->config->output_mode == S5H1411_SERIAL_OUTPUT)
+		/* Serial */
+		s5h1411_set_serialmode(fe, 1);
+	else
+		/* Parallel */
+		s5h1411_set_serialmode(fe, 0);
+
+	s5h1411_set_spectralinversion(fe, state->config->inversion);
+	s5h1411_set_if_freq(fe, state->config->vsb_if);
+	s5h1411_set_gpio(fe, state->config->gpio);
+	s5h1411_set_mpeg_timing(fe, state->config->mpeg_timing);
+	s5h1411_softreset(fe);
+
+	/* Note: Leaving the I2C gate closed. */
+	s5h1411_i2c_gate_ctrl(fe, 0);
+
+	return 0;
+}
+
+static int s5h1411_read_status(struct dvb_frontend *fe, enum fe_status *status)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	u16 reg;
+	u32 tuner_status = 0;
+
+	*status = 0;
+
+	/* Register F2 bit 15 = Master Lock, removed */
+
+	switch (state->current_modulation) {
+	case QAM_64:
+	case QAM_256:
+		reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf0);
+		if (reg & 0x10) /* QAM FEC Lock */
+			*status |= FE_HAS_SYNC | FE_HAS_LOCK;
+		if (reg & 0x100) /* QAM EQ Lock */
+			*status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL;
+
+		break;
+	case VSB_8:
+		reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf2);
+		if (reg & 0x1000) /* FEC Lock */
+			*status |= FE_HAS_SYNC | FE_HAS_LOCK;
+		if (reg & 0x2000) /* EQ Lock */
+			*status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL;
+
+		reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0x53);
+		if (reg & 0x1) /* AFC Lock */
+			*status |= FE_HAS_SIGNAL;
+
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (state->config->status_mode) {
+	case S5H1411_DEMODLOCKING:
+		if (*status & FE_HAS_VITERBI)
+			*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
+		break;
+	case S5H1411_TUNERLOCKING:
+		/* Get the tuner status */
+		if (fe->ops.tuner_ops.get_status) {
+			if (fe->ops.i2c_gate_ctrl)
+				fe->ops.i2c_gate_ctrl(fe, 1);
+
+			fe->ops.tuner_ops.get_status(fe, &tuner_status);
+
+			if (fe->ops.i2c_gate_ctrl)
+				fe->ops.i2c_gate_ctrl(fe, 0);
+		}
+		if (tuner_status)
+			*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
+		break;
+	}
+
+	dprintk("%s() status 0x%08x\n", __func__, *status);
+
+	return 0;
+}
+
+static int s5h1411_qam256_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v)
+{
+	int i, ret = -EINVAL;
+	dprintk("%s()\n", __func__);
+
+	for (i = 0; i < ARRAY_SIZE(qam256_snr_tab); i++) {
+		if (v < qam256_snr_tab[i].val) {
+			*snr = qam256_snr_tab[i].data;
+			ret = 0;
+			break;
+		}
+	}
+	return ret;
+}
+
+static int s5h1411_qam64_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v)
+{
+	int i, ret = -EINVAL;
+	dprintk("%s()\n", __func__);
+
+	for (i = 0; i < ARRAY_SIZE(qam64_snr_tab); i++) {
+		if (v < qam64_snr_tab[i].val) {
+			*snr = qam64_snr_tab[i].data;
+			ret = 0;
+			break;
+		}
+	}
+	return ret;
+}
+
+static int s5h1411_vsb_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v)
+{
+	int i, ret = -EINVAL;
+	dprintk("%s()\n", __func__);
+
+	for (i = 0; i < ARRAY_SIZE(vsb_snr_tab); i++) {
+		if (v > vsb_snr_tab[i].val) {
+			*snr = vsb_snr_tab[i].data;
+			ret = 0;
+			break;
+		}
+	}
+	dprintk("%s() snr=%d\n", __func__, *snr);
+	return ret;
+}
+
+static int s5h1411_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	u16 reg;
+	dprintk("%s()\n", __func__);
+
+	switch (state->current_modulation) {
+	case QAM_64:
+		reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf1);
+		return s5h1411_qam64_lookup_snr(fe, snr, reg);
+	case QAM_256:
+		reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf1);
+		return s5h1411_qam256_lookup_snr(fe, snr, reg);
+	case VSB_8:
+		reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR,
+			0xf2) & 0x3ff;
+		return s5h1411_vsb_lookup_snr(fe, snr, reg);
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int s5h1411_read_signal_strength(struct dvb_frontend *fe,
+	u16 *signal_strength)
+{
+	/* borrowed from lgdt330x.c
+	 *
+	 * Calculate strength from SNR up to 35dB
+	 * Even though the SNR can go higher than 35dB,
+	 * there is some comfort factor in having a range of
+	 * strong signals that can show at 100%
+	 */
+	u16 snr;
+	u32 tmp;
+	int ret = s5h1411_read_snr(fe, &snr);
+
+	*signal_strength = 0;
+
+	if (0 == ret) {
+		/* The following calculation method was chosen
+		 * purely for the sake of code re-use from the
+		 * other demod drivers that use this method */
+
+		/* Convert from SNR in dB * 10 to 8.24 fixed-point */
+		tmp = (snr * ((1 << 24) / 10));
+
+		/* Convert from 8.24 fixed-point to
+		 * scale the range 0 - 35*2^24 into 0 - 65535*/
+		if (tmp >= 8960 * 0x10000)
+			*signal_strength = 0xffff;
+		else
+			*signal_strength = tmp / 8960;
+	}
+
+	return ret;
+}
+
+static int s5h1411_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	*ucblocks = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xc9);
+
+	return 0;
+}
+
+static int s5h1411_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+	return s5h1411_read_ucblocks(fe, ber);
+}
+
+static int s5h1411_get_frontend(struct dvb_frontend *fe,
+				struct dtv_frontend_properties *p)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+
+	p->frequency = state->current_frequency;
+	p->modulation = state->current_modulation;
+
+	return 0;
+}
+
+static int s5h1411_get_tune_settings(struct dvb_frontend *fe,
+				     struct dvb_frontend_tune_settings *tune)
+{
+	tune->min_delay_ms = 1000;
+	return 0;
+}
+
+static void s5h1411_release(struct dvb_frontend *fe)
+{
+	struct s5h1411_state *state = fe->demodulator_priv;
+	kfree(state);
+}
+
+static const struct dvb_frontend_ops s5h1411_ops;
+
+struct dvb_frontend *s5h1411_attach(const struct s5h1411_config *config,
+				    struct i2c_adapter *i2c)
+{
+	struct s5h1411_state *state = NULL;
+	u16 reg;
+
+	/* allocate memory for the internal state */
+	state = kzalloc(sizeof(struct s5h1411_state), GFP_KERNEL);
+	if (state == NULL)
+		goto error;
+
+	/* setup the state */
+	state->config = config;
+	state->i2c = i2c;
+	state->current_modulation = VSB_8;
+	state->inversion = state->config->inversion;
+
+	/* check if the demod exists */
+	reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0x05);
+	if (reg != 0x0066)
+		goto error;
+
+	/* create dvb_frontend */
+	memcpy(&state->frontend.ops, &s5h1411_ops,
+	       sizeof(struct dvb_frontend_ops));
+
+	state->frontend.demodulator_priv = state;
+
+	if (s5h1411_init(&state->frontend) != 0) {
+		printk(KERN_ERR "%s: Failed to initialize correctly\n",
+			__func__);
+		goto error;
+	}
+
+	/* Note: Leaving the I2C gate open here. */
+	s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 1);
+
+	/* Put the device into low-power mode until first use */
+	s5h1411_set_powerstate(&state->frontend, 1);
+
+	return &state->frontend;
+
+error:
+	kfree(state);
+	return NULL;
+}
+EXPORT_SYMBOL(s5h1411_attach);
+
+static const struct dvb_frontend_ops s5h1411_ops = {
+	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
+	.info = {
+		.name			= "Samsung S5H1411 QAM/8VSB Frontend",
+		.frequency_min_hz	=  54 * MHz,
+		.frequency_max_hz	= 858 * MHz,
+		.frequency_stepsize_hz	= 62500,
+		.caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
+	},
+
+	.init                 = s5h1411_init,
+	.sleep                = s5h1411_sleep,
+	.i2c_gate_ctrl        = s5h1411_i2c_gate_ctrl,
+	.set_frontend         = s5h1411_set_frontend,
+	.get_frontend         = s5h1411_get_frontend,
+	.get_tune_settings    = s5h1411_get_tune_settings,
+	.read_status          = s5h1411_read_status,
+	.read_ber             = s5h1411_read_ber,
+	.read_signal_strength = s5h1411_read_signal_strength,
+	.read_snr             = s5h1411_read_snr,
+	.read_ucblocks        = s5h1411_read_ucblocks,
+	.release              = s5h1411_release,
+};
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Enable verbose debug messages");
+
+MODULE_DESCRIPTION("Samsung S5H1411 QAM-B/ATSC Demodulator driver");
+MODULE_AUTHOR("Steven Toth");
+MODULE_LICENSE("GPL");