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, 605 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/stv0288.c b/drivers/media/dvb-frontends/stv0288.c
new file mode 100644
index 000000000..3ae1f3a2f
--- /dev/null
+++ b/drivers/media/dvb-frontends/stv0288.c
@@ -0,0 +1,605 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+	Driver for ST STV0288 demodulator
+	Copyright (C) 2006 Georg Acher, BayCom GmbH, acher (at) baycom (dot) de
+		for Reel Multimedia
+	Copyright (C) 2008 TurboSight.com, Bob Liu <bob@turbosight.com>
+	Copyright (C) 2008 Igor M. Liplianin <liplianin@me.by>
+		Removed stb6000 specific tuner code and revised some
+		procedures.
+	2010-09-01 Josef Pavlik <josef@pavlik.it>
+		Fixed diseqc_msg, diseqc_burst and set_tone problems
+
+
+*/
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <asm/div64.h>
+
+#include <media/dvb_frontend.h>
+#include "stv0288.h"
+
+struct stv0288_state {
+	struct i2c_adapter *i2c;
+	const struct stv0288_config *config;
+	struct dvb_frontend frontend;
+
+	u8 initialised:1;
+	u32 tuner_frequency;
+	u32 symbol_rate;
+	enum fe_code_rate fec_inner;
+	int errmode;
+};
+
+#define STATUS_BER 0
+#define STATUS_UCBLOCKS 1
+
+static int debug;
+static int debug_legacy_dish_switch;
+#define dprintk(args...) \
+	do { \
+		if (debug) \
+			printk(KERN_DEBUG "stv0288: " args); \
+	} while (0)
+
+
+static int stv0288_writeregI(struct stv0288_state *state, u8 reg, u8 data)
+{
+	int ret;
+	u8 buf[] = { reg, data };
+	struct i2c_msg msg = {
+		.addr = state->config->demod_address,
+		.flags = 0,
+		.buf = buf,
+		.len = 2
+	};
+
+	ret = i2c_transfer(state->i2c, &msg, 1);
+
+	if (ret != 1)
+		dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n",
+			__func__, reg, data, ret);
+
+	return (ret != 1) ? -EREMOTEIO : 0;
+}
+
+static int stv0288_write(struct dvb_frontend *fe, const u8 buf[], int len)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	if (len != 2)
+		return -EINVAL;
+
+	return stv0288_writeregI(state, buf[0], buf[1]);
+}
+
+static u8 stv0288_readreg(struct stv0288_state *state, u8 reg)
+{
+	int ret;
+	u8 b0[] = { reg };
+	u8 b1[] = { 0 };
+	struct i2c_msg msg[] = {
+		{
+			.addr = state->config->demod_address,
+			.flags = 0,
+			.buf = b0,
+			.len = 1
+		}, {
+			.addr = state->config->demod_address,
+			.flags = I2C_M_RD,
+			.buf = b1,
+			.len = 1
+		}
+	};
+
+	ret = i2c_transfer(state->i2c, msg, 2);
+
+	if (ret != 2)
+		dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
+				__func__, reg, ret);
+
+	return b1[0];
+}
+
+static int stv0288_set_symbolrate(struct dvb_frontend *fe, u32 srate)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+	unsigned int temp;
+	unsigned char b[3];
+
+	if ((srate < 1000000) || (srate > 45000000))
+		return -EINVAL;
+
+	stv0288_writeregI(state, 0x22, 0);
+	stv0288_writeregI(state, 0x23, 0);
+	stv0288_writeregI(state, 0x2b, 0xff);
+	stv0288_writeregI(state, 0x2c, 0xf7);
+
+	temp = (unsigned int)srate / 1000;
+
+	temp = temp * 32768;
+	temp = temp / 25;
+	temp = temp / 125;
+	b[0] = (unsigned char)((temp >> 12) & 0xff);
+	b[1] = (unsigned char)((temp >> 4) & 0xff);
+	b[2] = (unsigned char)((temp << 4) & 0xf0);
+	stv0288_writeregI(state, 0x28, 0x80); /* SFRH */
+	stv0288_writeregI(state, 0x29, 0); /* SFRM */
+	stv0288_writeregI(state, 0x2a, 0); /* SFRL */
+
+	stv0288_writeregI(state, 0x28, b[0]);
+	stv0288_writeregI(state, 0x29, b[1]);
+	stv0288_writeregI(state, 0x2a, b[2]);
+	dprintk("stv0288: stv0288_set_symbolrate\n");
+
+	return 0;
+}
+
+static int stv0288_send_diseqc_msg(struct dvb_frontend *fe,
+				    struct dvb_diseqc_master_cmd *m)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	int i;
+
+	dprintk("%s\n", __func__);
+
+	stv0288_writeregI(state, 0x09, 0);
+	msleep(30);
+	stv0288_writeregI(state, 0x05, 0x12);/* modulated mode, single shot */
+
+	for (i = 0; i < m->msg_len; i++) {
+		if (stv0288_writeregI(state, 0x06, m->msg[i]))
+			return -EREMOTEIO;
+	}
+	msleep(m->msg_len*12);
+	return 0;
+}
+
+static int stv0288_send_diseqc_burst(struct dvb_frontend *fe,
+				     enum fe_sec_mini_cmd burst)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	dprintk("%s\n", __func__);
+
+	if (stv0288_writeregI(state, 0x05, 0x03))/* burst mode, single shot */
+		return -EREMOTEIO;
+
+	if (stv0288_writeregI(state, 0x06, burst == SEC_MINI_A ? 0x00 : 0xff))
+		return -EREMOTEIO;
+
+	msleep(15);
+	if (stv0288_writeregI(state, 0x05, 0x12))
+		return -EREMOTEIO;
+
+	return 0;
+}
+
+static int stv0288_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	switch (tone) {
+	case SEC_TONE_ON:
+		if (stv0288_writeregI(state, 0x05, 0x10))/* cont carrier */
+			return -EREMOTEIO;
+	break;
+
+	case SEC_TONE_OFF:
+		if (stv0288_writeregI(state, 0x05, 0x12))/* burst mode off*/
+			return -EREMOTEIO;
+	break;
+
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static u8 stv0288_inittab[] = {
+	0x01, 0x15,
+	0x02, 0x20,
+	0x09, 0x0,
+	0x0a, 0x4,
+	0x0b, 0x0,
+	0x0c, 0x0,
+	0x0d, 0x0,
+	0x0e, 0xd4,
+	0x0f, 0x30,
+	0x11, 0x80,
+	0x12, 0x03,
+	0x13, 0x48,
+	0x14, 0x84,
+	0x15, 0x45,
+	0x16, 0xb7,
+	0x17, 0x9c,
+	0x18, 0x0,
+	0x19, 0xa6,
+	0x1a, 0x88,
+	0x1b, 0x8f,
+	0x1c, 0xf0,
+	0x20, 0x0b,
+	0x21, 0x54,
+	0x22, 0x0,
+	0x23, 0x0,
+	0x2b, 0xff,
+	0x2c, 0xf7,
+	0x30, 0x0,
+	0x31, 0x1e,
+	0x32, 0x14,
+	0x33, 0x0f,
+	0x34, 0x09,
+	0x35, 0x0c,
+	0x36, 0x05,
+	0x37, 0x2f,
+	0x38, 0x16,
+	0x39, 0xbe,
+	0x3a, 0x0,
+	0x3b, 0x13,
+	0x3c, 0x11,
+	0x3d, 0x30,
+	0x40, 0x63,
+	0x41, 0x04,
+	0x42, 0x20,
+	0x43, 0x00,
+	0x44, 0x00,
+	0x45, 0x00,
+	0x46, 0x00,
+	0x47, 0x00,
+	0x4a, 0x00,
+	0x50, 0x10,
+	0x51, 0x38,
+	0x52, 0x21,
+	0x58, 0x54,
+	0x59, 0x86,
+	0x5a, 0x0,
+	0x5b, 0x9b,
+	0x5c, 0x08,
+	0x5d, 0x7f,
+	0x5e, 0x0,
+	0x5f, 0xff,
+	0x70, 0x0,
+	0x71, 0x0,
+	0x72, 0x0,
+	0x74, 0x0,
+	0x75, 0x0,
+	0x76, 0x0,
+	0x81, 0x0,
+	0x82, 0x3f,
+	0x83, 0x3f,
+	0x84, 0x0,
+	0x85, 0x0,
+	0x88, 0x0,
+	0x89, 0x0,
+	0x8a, 0x0,
+	0x8b, 0x0,
+	0x8c, 0x0,
+	0x90, 0x0,
+	0x91, 0x0,
+	0x92, 0x0,
+	0x93, 0x0,
+	0x94, 0x1c,
+	0x97, 0x0,
+	0xa0, 0x48,
+	0xa1, 0x0,
+	0xb0, 0xb8,
+	0xb1, 0x3a,
+	0xb2, 0x10,
+	0xb3, 0x82,
+	0xb4, 0x80,
+	0xb5, 0x82,
+	0xb6, 0x82,
+	0xb7, 0x82,
+	0xb8, 0x20,
+	0xb9, 0x0,
+	0xf0, 0x0,
+	0xf1, 0x0,
+	0xf2, 0xc0,
+	0x51, 0x36,
+	0x52, 0x09,
+	0x53, 0x94,
+	0x54, 0x62,
+	0x55, 0x29,
+	0x56, 0x64,
+	0x57, 0x2b,
+	0xff, 0xff,
+};
+
+static int stv0288_set_voltage(struct dvb_frontend *fe,
+			       enum fe_sec_voltage volt)
+{
+	dprintk("%s: %s\n", __func__,
+		volt == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
+		volt == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
+
+	return 0;
+}
+
+static int stv0288_init(struct dvb_frontend *fe)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+	int i;
+	u8 reg;
+	u8 val;
+
+	dprintk("stv0288: init chip\n");
+	stv0288_writeregI(state, 0x41, 0x04);
+	msleep(50);
+
+	/* we have default inittab */
+	if (state->config->inittab == NULL) {
+		for (i = 0; !(stv0288_inittab[i] == 0xff &&
+				stv0288_inittab[i + 1] == 0xff); i += 2)
+			stv0288_writeregI(state, stv0288_inittab[i],
+					stv0288_inittab[i + 1]);
+	} else {
+		for (i = 0; ; i += 2)  {
+			reg = state->config->inittab[i];
+			val = state->config->inittab[i+1];
+			if (reg == 0xff && val == 0xff)
+				break;
+			stv0288_writeregI(state, reg, val);
+		}
+	}
+	return 0;
+}
+
+static int stv0288_read_status(struct dvb_frontend *fe, enum fe_status *status)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	u8 sync = stv0288_readreg(state, 0x24);
+	if (sync == 255)
+		sync = 0;
+
+	dprintk("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __func__, sync);
+
+	*status = 0;
+	if (sync & 0x80)
+		*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
+	if (sync & 0x10)
+		*status |= FE_HAS_VITERBI;
+	if (sync & 0x08) {
+		*status |= FE_HAS_LOCK;
+		dprintk("stv0288 has locked\n");
+	}
+
+	return 0;
+}
+
+static int stv0288_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	if (state->errmode != STATUS_BER)
+		return 0;
+	*ber = (stv0288_readreg(state, 0x26) << 8) |
+					stv0288_readreg(state, 0x27);
+	dprintk("stv0288_read_ber %d\n", *ber);
+
+	return 0;
+}
+
+
+static int stv0288_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	s32 signal =  0xffff - ((stv0288_readreg(state, 0x10) << 8));
+
+
+	signal = signal * 5 / 4;
+	*strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal;
+	dprintk("stv0288_read_signal_strength %d\n", *strength);
+
+	return 0;
+}
+static int stv0288_sleep(struct dvb_frontend *fe)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	stv0288_writeregI(state, 0x41, 0x84);
+	state->initialised = 0;
+
+	return 0;
+}
+static int stv0288_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	s32 xsnr = 0xffff - ((stv0288_readreg(state, 0x2d) << 8)
+			   | stv0288_readreg(state, 0x2e));
+	xsnr = 3 * (xsnr - 0xa100);
+	*snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr;
+	dprintk("stv0288_read_snr %d\n", *snr);
+
+	return 0;
+}
+
+static int stv0288_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	if (state->errmode != STATUS_BER)
+		return 0;
+	*ucblocks = (stv0288_readreg(state, 0x26) << 8) |
+					stv0288_readreg(state, 0x27);
+	dprintk("stv0288_read_ber %d\n", *ucblocks);
+
+	return 0;
+}
+
+static int stv0288_set_frontend(struct dvb_frontend *fe)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+	u8 tda[3], reg, time_out = 0;
+	s8 tm;
+
+	dprintk("%s : FE_SET_FRONTEND\n", __func__);
+
+	if (c->delivery_system != SYS_DVBS) {
+		dprintk("%s: unsupported delivery system selected (%d)\n",
+			__func__, c->delivery_system);
+		return -EOPNOTSUPP;
+	}
+
+	if (state->config->set_ts_params)
+		state->config->set_ts_params(fe, 0);
+
+	/* only frequency & symbol_rate are used for tuner*/
+	if (fe->ops.tuner_ops.set_params) {
+		fe->ops.tuner_ops.set_params(fe);
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 0);
+	}
+
+	udelay(10);
+	stv0288_set_symbolrate(fe, c->symbol_rate);
+	/* Carrier lock control register */
+	stv0288_writeregI(state, 0x15, 0xc5);
+
+	tda[2] = 0x0; /* CFRL */
+	for (tm = -9; tm < 7;) {
+		/* Viterbi status */
+		reg = stv0288_readreg(state, 0x24);
+		if (reg & 0x8)
+				break;
+		if (reg & 0x80) {
+			time_out++;
+			if (time_out > 10)
+				break;
+			tda[2] += 40;
+			if (tda[2] < 40)
+				tm++;
+		} else {
+			tm++;
+			tda[2] = 0;
+			time_out = 0;
+		}
+		tda[1] = (unsigned char)tm;
+		stv0288_writeregI(state, 0x2b, tda[1]);
+		stv0288_writeregI(state, 0x2c, tda[2]);
+		msleep(30);
+	}
+	state->tuner_frequency = c->frequency;
+	state->fec_inner = FEC_AUTO;
+	state->symbol_rate = c->symbol_rate;
+
+	return 0;
+}
+
+static int stv0288_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+
+	if (enable)
+		stv0288_writeregI(state, 0x01, 0xb5);
+	else
+		stv0288_writeregI(state, 0x01, 0x35);
+
+	udelay(1);
+
+	return 0;
+}
+
+static void stv0288_release(struct dvb_frontend *fe)
+{
+	struct stv0288_state *state = fe->demodulator_priv;
+	kfree(state);
+}
+
+static const struct dvb_frontend_ops stv0288_ops = {
+	.delsys = { SYS_DVBS },
+	.info = {
+		.name			= "ST STV0288 DVB-S",
+		.frequency_min_hz	=  950 * MHz,
+		.frequency_max_hz	= 2150 * MHz,
+		.frequency_stepsize_hz	=    1 * MHz,
+		.symbol_rate_min	= 1000000,
+		.symbol_rate_max	= 45000000,
+		.symbol_rate_tolerance	= 500,	/* ppm */
+		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+		      FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
+		      FE_CAN_QPSK |
+		      FE_CAN_FEC_AUTO
+	},
+
+	.release = stv0288_release,
+	.init = stv0288_init,
+	.sleep = stv0288_sleep,
+	.write = stv0288_write,
+	.i2c_gate_ctrl = stv0288_i2c_gate_ctrl,
+	.read_status = stv0288_read_status,
+	.read_ber = stv0288_read_ber,
+	.read_signal_strength = stv0288_read_signal_strength,
+	.read_snr = stv0288_read_snr,
+	.read_ucblocks = stv0288_read_ucblocks,
+	.diseqc_send_master_cmd = stv0288_send_diseqc_msg,
+	.diseqc_send_burst = stv0288_send_diseqc_burst,
+	.set_tone = stv0288_set_tone,
+	.set_voltage = stv0288_set_voltage,
+
+	.set_frontend = stv0288_set_frontend,
+};
+
+struct dvb_frontend *stv0288_attach(const struct stv0288_config *config,
+				    struct i2c_adapter *i2c)
+{
+	struct stv0288_state *state = NULL;
+	int id;
+
+	/* allocate memory for the internal state */
+	state = kzalloc(sizeof(struct stv0288_state), GFP_KERNEL);
+	if (state == NULL)
+		goto error;
+
+	/* setup the state */
+	state->config = config;
+	state->i2c = i2c;
+	state->initialised = 0;
+	state->tuner_frequency = 0;
+	state->symbol_rate = 0;
+	state->fec_inner = 0;
+	state->errmode = STATUS_BER;
+
+	stv0288_writeregI(state, 0x41, 0x04);
+	msleep(200);
+	id = stv0288_readreg(state, 0x00);
+	dprintk("stv0288 id %x\n", id);
+
+	/* register 0x00 contains 0x11 for STV0288  */
+	if (id != 0x11)
+		goto error;
+
+	/* create dvb_frontend */
+	memcpy(&state->frontend.ops, &stv0288_ops,
+			sizeof(struct dvb_frontend_ops));
+	state->frontend.demodulator_priv = state;
+	return &state->frontend;
+
+error:
+	kfree(state);
+
+	return NULL;
+}
+EXPORT_SYMBOL(stv0288_attach);
+
+module_param(debug_legacy_dish_switch, int, 0444);
+MODULE_PARM_DESC(debug_legacy_dish_switch,
+		"Enable timing analysis for Dish Network legacy switches");
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
+
+MODULE_DESCRIPTION("ST STV0288 DVB Demodulator driver");
+MODULE_AUTHOR("Georg Acher, Bob Liu, Igor liplianin");
+MODULE_LICENSE("GPL");
+