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, 755 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/stv0299.c b/drivers/media/dvb-frontends/stv0299.c
new file mode 100644
index 000000000..b5263a0ee
--- /dev/null
+++ b/drivers/media/dvb-frontends/stv0299.c
@@ -0,0 +1,755 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+    Driver for ST STV0299 demodulator
+
+    Copyright (C) 2001-2002 Convergence Integrated Media GmbH
+	<ralph@convergence.de>,
+	<holger@convergence.de>,
+	<js@convergence.de>
+
+
+    Philips SU1278/SH
+
+    Copyright (C) 2002 by Peter Schildmann <peter.schildmann@web.de>
+
+
+    LG TDQF-S001F
+
+    Copyright (C) 2002 Felix Domke <tmbinc@elitedvb.net>
+		     & Andreas Oberritter <obi@linuxtv.org>
+
+
+    Support for Samsung TBMU24112IMB used on Technisat SkyStar2 rev. 2.6B
+
+    Copyright (C) 2003 Vadim Catana <skystar@moldova.cc>:
+
+    Support for Philips SU1278 on Technotrend hardware
+
+    Copyright (C) 2004 Andrew de Quincey <adq_dvb@lidskialf.net>
+
+
+*/
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/ktime.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 "stv0299.h"
+
+struct stv0299_state {
+	struct i2c_adapter* i2c;
+	const struct stv0299_config* config;
+	struct dvb_frontend frontend;
+
+	u8 initialised:1;
+	u32 tuner_frequency;
+	u32 symbol_rate;
+	enum fe_code_rate fec_inner;
+	int errmode;
+	u32 ucblocks;
+	u8 mcr_reg;
+};
+
+#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 "stv0299: " args); \
+	} while (0)
+
+
+static int stv0299_writeregI (struct stv0299_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 stv0299_write(struct dvb_frontend* fe, const u8 buf[], int len)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	if (len != 2)
+		return -EINVAL;
+
+	return stv0299_writeregI(state, buf[0], buf[1]);
+}
+
+static u8 stv0299_readreg (struct stv0299_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 stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len)
+{
+	int ret;
+	struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = &reg1, .len = 1 },
+			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };
+
+	ret = i2c_transfer (state->i2c, msg, 2);
+
+	if (ret != 2)
+		dprintk("%s: readreg error (ret == %i)\n", __func__, ret);
+
+	return ret == 2 ? 0 : ret;
+}
+
+static int stv0299_set_FEC(struct stv0299_state *state, enum fe_code_rate fec)
+{
+	dprintk ("%s\n", __func__);
+
+	switch (fec) {
+	case FEC_AUTO:
+	{
+		return stv0299_writeregI (state, 0x31, 0x1f);
+	}
+	case FEC_1_2:
+	{
+		return stv0299_writeregI (state, 0x31, 0x01);
+	}
+	case FEC_2_3:
+	{
+		return stv0299_writeregI (state, 0x31, 0x02);
+	}
+	case FEC_3_4:
+	{
+		return stv0299_writeregI (state, 0x31, 0x04);
+	}
+	case FEC_5_6:
+	{
+		return stv0299_writeregI (state, 0x31, 0x08);
+	}
+	case FEC_7_8:
+	{
+		return stv0299_writeregI (state, 0x31, 0x10);
+	}
+	default:
+	{
+		return -EINVAL;
+	}
+    }
+}
+
+static enum fe_code_rate stv0299_get_fec(struct stv0299_state *state)
+{
+	static const enum fe_code_rate fec_tab[] = {
+		FEC_2_3, FEC_3_4, FEC_5_6, FEC_7_8, FEC_1_2
+	};
+	u8 index;
+
+	dprintk ("%s\n", __func__);
+
+	index = stv0299_readreg (state, 0x1b);
+	index &= 0x7;
+
+	if (index > 4)
+		return FEC_AUTO;
+
+	return fec_tab [index];
+}
+
+static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout)
+{
+	unsigned long start = jiffies;
+
+	dprintk ("%s\n", __func__);
+
+	while (stv0299_readreg(state, 0x0a) & 1) {
+		if (time_is_before_jiffies(start + timeout)) {
+			dprintk ("%s: timeout!!\n", __func__);
+			return -ETIMEDOUT;
+		}
+		msleep(10);
+	}
+
+	return 0;
+}
+
+static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout)
+{
+	unsigned long start = jiffies;
+
+	dprintk ("%s\n", __func__);
+
+	while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) {
+		if (time_is_before_jiffies(start + timeout)) {
+			dprintk ("%s: timeout!!\n", __func__);
+			return -ETIMEDOUT;
+		}
+		msleep(10);
+	}
+
+	return 0;
+}
+
+static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	u64 big = srate;
+	u32 ratio;
+
+	// check rate is within limits
+	if ((srate < 1000000) || (srate > 45000000)) return -EINVAL;
+
+	// calculate value to program
+	big = big << 20;
+	big += (state->config->mclk-1); // round correctly
+	do_div(big, state->config->mclk);
+	ratio = big << 4;
+
+	return state->config->set_symbol_rate(fe, srate, ratio);
+}
+
+static int stv0299_get_symbolrate (struct stv0299_state* state)
+{
+	u32 Mclk = state->config->mclk / 4096L;
+	u32 srate;
+	s32 offset;
+	u8 sfr[3];
+	s8 rtf;
+
+	dprintk ("%s\n", __func__);
+
+	stv0299_readregs (state, 0x1f, sfr, 3);
+	stv0299_readregs (state, 0x1a, (u8 *)&rtf, 1);
+
+	srate = (sfr[0] << 8) | sfr[1];
+	srate *= Mclk;
+	srate /= 16;
+	srate += (sfr[2] >> 4) * Mclk / 256;
+	offset = (s32) rtf * (srate / 4096L);
+	offset /= 128;
+
+	dprintk ("%s : srate = %i\n", __func__, srate);
+	dprintk ("%s : ofset = %i\n", __func__, offset);
+
+	srate += offset;
+
+	srate += 1000;
+	srate /= 2000;
+	srate *= 2000;
+
+	return srate;
+}
+
+static int stv0299_send_diseqc_msg (struct dvb_frontend* fe,
+				    struct dvb_diseqc_master_cmd *m)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	u8 val;
+	int i;
+
+	dprintk ("%s\n", __func__);
+
+	if (stv0299_wait_diseqc_idle (state, 100) < 0)
+		return -ETIMEDOUT;
+
+	val = stv0299_readreg (state, 0x08);
+
+	if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6))  /* DiSEqC mode */
+		return -EREMOTEIO;
+
+	for (i=0; i<m->msg_len; i++) {
+		if (stv0299_wait_diseqc_fifo (state, 100) < 0)
+			return -ETIMEDOUT;
+
+		if (stv0299_writeregI (state, 0x09, m->msg[i]))
+			return -EREMOTEIO;
+	}
+
+	if (stv0299_wait_diseqc_idle (state, 100) < 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int stv0299_send_diseqc_burst(struct dvb_frontend *fe,
+				     enum fe_sec_mini_cmd burst)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	u8 val;
+
+	dprintk ("%s\n", __func__);
+
+	if (stv0299_wait_diseqc_idle (state, 100) < 0)
+		return -ETIMEDOUT;
+
+	val = stv0299_readreg (state, 0x08);
+
+	if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2))	/* burst mode */
+		return -EREMOTEIO;
+
+	if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff))
+		return -EREMOTEIO;
+
+	if (stv0299_wait_diseqc_idle (state, 100) < 0)
+		return -ETIMEDOUT;
+
+	if (stv0299_writeregI (state, 0x08, val))
+		return -EREMOTEIO;
+
+	return 0;
+}
+
+static int stv0299_set_tone(struct dvb_frontend *fe,
+			    enum fe_sec_tone_mode tone)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	u8 val;
+
+	if (stv0299_wait_diseqc_idle (state, 100) < 0)
+		return -ETIMEDOUT;
+
+	val = stv0299_readreg (state, 0x08);
+
+	switch (tone) {
+	case SEC_TONE_ON:
+		return stv0299_writeregI (state, 0x08, val | 0x3);
+
+	case SEC_TONE_OFF:
+		return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int stv0299_set_voltage(struct dvb_frontend *fe,
+			       enum fe_sec_voltage voltage)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	u8 reg0x08;
+	u8 reg0x0c;
+
+	dprintk("%s: %s\n", __func__,
+		voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
+		voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
+
+	reg0x08 = stv0299_readreg (state, 0x08);
+	reg0x0c = stv0299_readreg (state, 0x0c);
+
+	/*
+	 *  H/V switching over OP0, OP1 and OP2 are LNB power enable bits
+	 */
+	reg0x0c &= 0x0f;
+	reg0x08 = (reg0x08 & 0x3f) | (state->config->lock_output << 6);
+
+	switch (voltage) {
+	case SEC_VOLTAGE_13:
+		if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
+			reg0x0c |= 0x10; /* OP1 off, OP0 on */
+		else
+			reg0x0c |= 0x40; /* OP1 on, OP0 off */
+		break;
+	case SEC_VOLTAGE_18:
+		reg0x0c |= 0x50; /* OP1 on, OP0 on */
+		break;
+	case SEC_VOLTAGE_OFF:
+		/* LNB power off! */
+		reg0x08 = 0x00;
+		reg0x0c = 0x00;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (state->config->op0_off)
+		reg0x0c &= ~0x10;
+
+	stv0299_writeregI(state, 0x08, reg0x08);
+	return stv0299_writeregI(state, 0x0c, reg0x0c);
+}
+
+static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	u8 reg0x08;
+	u8 reg0x0c;
+	u8 lv_mask = 0x40;
+	u8 last = 1;
+	int i;
+	ktime_t nexttime;
+	ktime_t tv[10];
+
+	reg0x08 = stv0299_readreg (state, 0x08);
+	reg0x0c = stv0299_readreg (state, 0x0c);
+	reg0x0c &= 0x0f;
+	stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
+	if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
+		lv_mask = 0x10;
+
+	cmd = cmd << 1;
+	if (debug_legacy_dish_switch)
+		printk ("%s switch command: 0x%04lx\n",__func__, cmd);
+
+	nexttime = ktime_get_boottime();
+	if (debug_legacy_dish_switch)
+		tv[0] = nexttime;
+	stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */
+
+	dvb_frontend_sleep_until(&nexttime, 32000);
+
+	for (i=0; i<9; i++) {
+		if (debug_legacy_dish_switch)
+			tv[i+1] = ktime_get_boottime();
+		if((cmd & 0x01) != last) {
+			/* set voltage to (last ? 13V : 18V) */
+			stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50));
+			last = (last) ? 0 : 1;
+		}
+
+		cmd = cmd >> 1;
+
+		if (i != 8)
+			dvb_frontend_sleep_until(&nexttime, 8000);
+	}
+	if (debug_legacy_dish_switch) {
+		printk ("%s(%d): switch delay (should be 32k followed by all 8k\n",
+			__func__, fe->dvb->num);
+		for (i = 1; i < 10; i++)
+			printk("%d: %d\n", i,
+			       (int) ktime_us_delta(tv[i], tv[i-1]));
+	}
+
+	return 0;
+}
+
+static int stv0299_init (struct dvb_frontend* fe)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	int i;
+	u8 reg;
+	u8 val;
+
+	dprintk("stv0299: init chip\n");
+
+	stv0299_writeregI(state, 0x02, 0x30 | state->mcr_reg);
+	msleep(50);
+
+	for (i = 0; ; i += 2)  {
+		reg = state->config->inittab[i];
+		val = state->config->inittab[i+1];
+		if (reg == 0xff && val == 0xff)
+			break;
+		if (reg == 0x0c && state->config->op0_off)
+			val &= ~0x10;
+		if (reg == 0x2)
+			state->mcr_reg = val & 0xf;
+		stv0299_writeregI(state, reg, val);
+	}
+
+	return 0;
+}
+
+static int stv0299_read_status(struct dvb_frontend *fe,
+			       enum fe_status *status)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	u8 signal = 0xff - stv0299_readreg (state, 0x18);
+	u8 sync = stv0299_readreg (state, 0x1b);
+
+	dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __func__, sync);
+	*status = 0;
+
+	if (signal > 10)
+		*status |= FE_HAS_SIGNAL;
+
+	if (sync & 0x80)
+		*status |= FE_HAS_CARRIER;
+
+	if (sync & 0x10)
+		*status |= FE_HAS_VITERBI;
+
+	if (sync & 0x08)
+		*status |= FE_HAS_SYNC;
+
+	if ((sync & 0x98) == 0x98)
+		*status |= FE_HAS_LOCK;
+
+	return 0;
+}
+
+static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	if (state->errmode != STATUS_BER)
+		return -ENOSYS;
+
+	*ber = stv0299_readreg(state, 0x1e) | (stv0299_readreg(state, 0x1d) << 8);
+
+	return 0;
+}
+
+static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	s32 signal =  0xffff - ((stv0299_readreg (state, 0x18) << 8)
+			       | stv0299_readreg (state, 0x19));
+
+	dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __func__,
+		 stv0299_readreg (state, 0x18),
+		 stv0299_readreg (state, 0x19), (int) signal);
+
+	signal = signal * 5 / 4;
+	*strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal;
+
+	return 0;
+}
+
+static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8)
+			   | stv0299_readreg (state, 0x25));
+	xsnr = 3 * (xsnr - 0xa100);
+	*snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr;
+
+	return 0;
+}
+
+static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	if (state->errmode != STATUS_UCBLOCKS)
+		return -ENOSYS;
+
+	state->ucblocks += stv0299_readreg(state, 0x1e);
+	state->ucblocks += (stv0299_readreg(state, 0x1d) << 8);
+	*ucblocks = state->ucblocks;
+
+	return 0;
+}
+
+static int stv0299_set_frontend(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	struct stv0299_state* state = fe->demodulator_priv;
+	int invval = 0;
+
+	dprintk ("%s : FE_SET_FRONTEND\n", __func__);
+	if (state->config->set_ts_params)
+		state->config->set_ts_params(fe, 0);
+
+	// set the inversion
+	if (p->inversion == INVERSION_OFF) invval = 0;
+	else if (p->inversion == INVERSION_ON) invval = 1;
+	else {
+		printk("stv0299 does not support auto-inversion\n");
+		return -EINVAL;
+	}
+	if (state->config->invert) invval = (~invval) & 1;
+	stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval);
+
+	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);
+	}
+
+	stv0299_set_FEC(state, p->fec_inner);
+	stv0299_set_symbolrate(fe, p->symbol_rate);
+	stv0299_writeregI(state, 0x22, 0x00);
+	stv0299_writeregI(state, 0x23, 0x00);
+
+	state->tuner_frequency = p->frequency;
+	state->fec_inner = p->fec_inner;
+	state->symbol_rate = p->symbol_rate;
+
+	return 0;
+}
+
+static int stv0299_get_frontend(struct dvb_frontend *fe,
+				struct dtv_frontend_properties *p)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	s32 derot_freq;
+	int invval;
+
+	derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8)
+				| stv0299_readreg (state, 0x23));
+
+	derot_freq *= (state->config->mclk >> 16);
+	derot_freq += 500;
+	derot_freq /= 1000;
+
+	p->frequency += derot_freq;
+
+	invval = stv0299_readreg (state, 0x0c) & 1;
+	if (state->config->invert) invval = (~invval) & 1;
+	p->inversion = invval ? INVERSION_ON : INVERSION_OFF;
+
+	p->fec_inner = stv0299_get_fec(state);
+	p->symbol_rate = stv0299_get_symbolrate(state);
+
+	return 0;
+}
+
+static int stv0299_sleep(struct dvb_frontend* fe)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	stv0299_writeregI(state, 0x02, 0xb0 | state->mcr_reg);
+	state->initialised = 0;
+
+	return 0;
+}
+
+static int stv0299_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+
+	if (enable) {
+		stv0299_writeregI(state, 0x05, 0xb5);
+	} else {
+		stv0299_writeregI(state, 0x05, 0x35);
+	}
+	udelay(1);
+	return 0;
+}
+
+static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+
+	fesettings->min_delay_ms = state->config->min_delay_ms;
+	if (p->symbol_rate < 10000000) {
+		fesettings->step_size = p->symbol_rate / 32000;
+		fesettings->max_drift = 5000;
+	} else {
+		fesettings->step_size = p->symbol_rate / 16000;
+		fesettings->max_drift = p->symbol_rate / 2000;
+	}
+	return 0;
+}
+
+static void stv0299_release(struct dvb_frontend* fe)
+{
+	struct stv0299_state* state = fe->demodulator_priv;
+	kfree(state);
+}
+
+static const struct dvb_frontend_ops stv0299_ops;
+
+struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
+				    struct i2c_adapter* i2c)
+{
+	struct stv0299_state* state = NULL;
+	int id;
+
+	/* allocate memory for the internal state */
+	state = kzalloc(sizeof(struct stv0299_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;
+
+	/* check if the demod is there */
+	stv0299_writeregI(state, 0x02, 0x30); /* standby off */
+	msleep(200);
+	id = stv0299_readreg(state, 0x00);
+
+	/* register 0x00 contains 0xa1 for STV0299 and STV0299B */
+	/* register 0x00 might contain 0x80 when returning from standby */
+	if (id != 0xa1 && id != 0x80) goto error;
+
+	/* create dvb_frontend */
+	memcpy(&state->frontend.ops, &stv0299_ops, sizeof(struct dvb_frontend_ops));
+	state->frontend.demodulator_priv = state;
+	return &state->frontend;
+
+error:
+	kfree(state);
+	return NULL;
+}
+
+static const struct dvb_frontend_ops stv0299_ops = {
+	.delsys = { SYS_DVBS },
+	.info = {
+		.name			= "ST STV0299 DVB-S",
+		.frequency_min_hz	=  950 * MHz,
+		.frequency_max_hz	= 2150 * MHz,
+		.frequency_stepsize_hz	=  125 * kHz,
+		.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 = stv0299_release,
+
+	.init = stv0299_init,
+	.sleep = stv0299_sleep,
+	.write = stv0299_write,
+	.i2c_gate_ctrl = stv0299_i2c_gate_ctrl,
+
+	.set_frontend = stv0299_set_frontend,
+	.get_frontend = stv0299_get_frontend,
+	.get_tune_settings = stv0299_get_tune_settings,
+
+	.read_status = stv0299_read_status,
+	.read_ber = stv0299_read_ber,
+	.read_signal_strength = stv0299_read_signal_strength,
+	.read_snr = stv0299_read_snr,
+	.read_ucblocks = stv0299_read_ucblocks,
+
+	.diseqc_send_master_cmd = stv0299_send_diseqc_msg,
+	.diseqc_send_burst = stv0299_send_diseqc_burst,
+	.set_tone = stv0299_set_tone,
+	.set_voltage = stv0299_set_voltage,
+	.dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd,
+};
+
+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 STV0299 DVB Demodulator driver");
+MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, Andreas Oberritter, Andrew de Quincey, Kenneth Aafly");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(stv0299_attach);