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, 651 insertions, 0 deletions

diff --git a/drivers/media/pci/cx88/cx88-input.c b/drivers/media/pci/cx88/cx88-input.c
new file mode 100644
index 000000000..a04a1d33f
--- /dev/null
+++ b/drivers/media/pci/cx88/cx88-input.c
@@ -0,0 +1,651 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *
+ * Device driver for GPIO attached remote control interfaces
+ * on Conexant 2388x based TV/DVB cards.
+ *
+ * Copyright (c) 2003 Pavel Machek
+ * Copyright (c) 2004 Gerd Knorr
+ * Copyright (c) 2004, 2005 Chris Pascoe
+ */
+
+#include "cx88.h"
+
+#include <linux/init.h>
+#include <linux/hrtimer.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#include <media/rc-core.h>
+
+#define MODULE_NAME "cx88xx"
+
+/* ---------------------------------------------------------------------- */
+
+struct cx88_IR {
+	struct cx88_core *core;
+	struct rc_dev *dev;
+
+	int users;
+
+	char name[32];
+	char phys[32];
+
+	/* sample from gpio pin 16 */
+	u32 sampling;
+
+	/* poll external decoder */
+	int polling;
+	struct hrtimer timer;
+	u32 gpio_addr;
+	u32 last_gpio;
+	u32 mask_keycode;
+	u32 mask_keydown;
+	u32 mask_keyup;
+};
+
+static unsigned int ir_samplerate = 4;
+module_param(ir_samplerate, uint, 0444);
+MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4");
+
+static int ir_debug;
+module_param(ir_debug, int, 0644);	/* debug level [IR] */
+MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
+
+#define ir_dprintk(fmt, arg...)	do {					\
+	if (ir_debug)							\
+		printk(KERN_DEBUG "%s IR: " fmt, ir->core->name, ##arg);\
+} while (0)
+
+#define dprintk(fmt, arg...) do {					\
+	if (ir_debug)							\
+		printk(KERN_DEBUG "cx88 IR: " fmt, ##arg);		\
+} while (0)
+
+/* ---------------------------------------------------------------------- */
+
+static void cx88_ir_handle_key(struct cx88_IR *ir)
+{
+	struct cx88_core *core = ir->core;
+	u32 gpio, data, auxgpio;
+
+	/* read gpio value */
+	gpio = cx_read(ir->gpio_addr);
+	switch (core->boardnr) {
+	case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
+		/*
+		 * This board apparently uses a combination of 2 GPIO
+		 * to represent the keys. Additionally, the second GPIO
+		 * can be used for parity.
+		 *
+		 * Example:
+		 *
+		 * for key "5"
+		 *	gpio = 0x758, auxgpio = 0xe5 or 0xf5
+		 * for key "Power"
+		 *	gpio = 0x758, auxgpio = 0xed or 0xfd
+		 */
+
+		auxgpio = cx_read(MO_GP1_IO);
+		/* Take out the parity part */
+		gpio = (gpio & 0x7fd) + (auxgpio & 0xef);
+		break;
+	case CX88_BOARD_WINFAST_DTV1000:
+	case CX88_BOARD_WINFAST_DTV1800H:
+	case CX88_BOARD_WINFAST_DTV1800H_XC4000:
+	case CX88_BOARD_WINFAST_DTV2000H_PLUS:
+	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
+	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
+	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
+		gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900);
+		auxgpio = gpio;
+		break;
+	default:
+		auxgpio = gpio;
+	}
+	if (ir->polling) {
+		if (ir->last_gpio == auxgpio)
+			return;
+		ir->last_gpio = auxgpio;
+	}
+
+	/* extract data */
+	data = ir_extract_bits(gpio, ir->mask_keycode);
+	ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
+		   gpio, data,
+		   ir->polling ? "poll" : "irq",
+		   (gpio & ir->mask_keydown) ? " down" : "",
+		   (gpio & ir->mask_keyup) ? " up" : "");
+
+	if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
+		u32 gpio_key = cx_read(MO_GP0_IO);
+
+		data = (data << 4) | ((gpio_key & 0xf0) >> 4);
+
+		rc_keydown(ir->dev, RC_PROTO_UNKNOWN, data, 0);
+
+	} else if (ir->core->boardnr == CX88_BOARD_PROLINK_PLAYTVPVR ||
+		   ir->core->boardnr == CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO) {
+		/* bit cleared on keydown, NEC scancode, 0xAAAACC, A = 0x866b */
+		u16 addr;
+		u8 cmd;
+		u32 scancode;
+
+		addr = (data >> 8) & 0xffff;
+		cmd  = (data >> 0) & 0x00ff;
+		scancode = RC_SCANCODE_NECX(addr, cmd);
+
+		if (0 == (gpio & ir->mask_keyup))
+			rc_keydown_notimeout(ir->dev, RC_PROTO_NECX, scancode,
+					     0);
+		else
+			rc_keyup(ir->dev);
+
+	} else if (ir->mask_keydown) {
+		/* bit set on keydown */
+		if (gpio & ir->mask_keydown)
+			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
+					     0);
+		else
+			rc_keyup(ir->dev);
+
+	} else if (ir->mask_keyup) {
+		/* bit cleared on keydown */
+		if (0 == (gpio & ir->mask_keyup))
+			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
+					     0);
+		else
+			rc_keyup(ir->dev);
+
+	} else {
+		/* can't distinguish keydown/up :-/ */
+		rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data, 0);
+		rc_keyup(ir->dev);
+	}
+}
+
+static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
+{
+	u64 missed;
+	struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
+
+	cx88_ir_handle_key(ir);
+	missed = hrtimer_forward_now(&ir->timer,
+				     ktime_set(0, ir->polling * 1000000));
+	if (missed > 1)
+		ir_dprintk("Missed ticks %llu\n", missed - 1);
+
+	return HRTIMER_RESTART;
+}
+
+static int __cx88_ir_start(void *priv)
+{
+	struct cx88_core *core = priv;
+	struct cx88_IR *ir;
+
+	if (!core || !core->ir)
+		return -EINVAL;
+
+	ir = core->ir;
+
+	if (ir->polling) {
+		hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+		ir->timer.function = cx88_ir_work;
+		hrtimer_start(&ir->timer,
+			      ktime_set(0, ir->polling * 1000000),
+			      HRTIMER_MODE_REL);
+	}
+	if (ir->sampling) {
+		core->pci_irqmask |= PCI_INT_IR_SMPINT;
+		cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate); /* samplerate */
+		cx_write(MO_DDSCFG_IO, 0x5); /* enable */
+	}
+	return 0;
+}
+
+static void __cx88_ir_stop(void *priv)
+{
+	struct cx88_core *core = priv;
+	struct cx88_IR *ir;
+
+	if (!core || !core->ir)
+		return;
+
+	ir = core->ir;
+	if (ir->sampling) {
+		cx_write(MO_DDSCFG_IO, 0x0);
+		core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
+	}
+
+	if (ir->polling)
+		hrtimer_cancel(&ir->timer);
+}
+
+int cx88_ir_start(struct cx88_core *core)
+{
+	if (core->ir->users)
+		return __cx88_ir_start(core);
+
+	return 0;
+}
+EXPORT_SYMBOL(cx88_ir_start);
+
+void cx88_ir_stop(struct cx88_core *core)
+{
+	if (core->ir->users)
+		__cx88_ir_stop(core);
+}
+EXPORT_SYMBOL(cx88_ir_stop);
+
+static int cx88_ir_open(struct rc_dev *rc)
+{
+	struct cx88_core *core = rc->priv;
+
+	core->ir->users++;
+	return __cx88_ir_start(core);
+}
+
+static void cx88_ir_close(struct rc_dev *rc)
+{
+	struct cx88_core *core = rc->priv;
+
+	core->ir->users--;
+	if (!core->ir->users)
+		__cx88_ir_stop(core);
+}
+
+/* ---------------------------------------------------------------------- */
+
+int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
+{
+	struct cx88_IR *ir;
+	struct rc_dev *dev;
+	char *ir_codes = NULL;
+	u64 rc_proto = RC_PROTO_BIT_OTHER;
+	int err = -ENOMEM;
+	u32 hardware_mask = 0;	/* For devices with a hardware mask, when
+				 * used with a full-code IR table
+				 */
+
+	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
+	dev = rc_allocate_device(RC_DRIVER_IR_RAW);
+	if (!ir || !dev)
+		goto err_out_free;
+
+	ir->dev = dev;
+
+	/* detect & configure */
+	switch (core->boardnr) {
+	case CX88_BOARD_DNTV_LIVE_DVB_T:
+	case CX88_BOARD_KWORLD_DVB_T:
+	case CX88_BOARD_KWORLD_DVB_T_CX22702:
+		ir_codes = RC_MAP_DNTV_LIVE_DVB_T;
+		ir->gpio_addr = MO_GP1_IO;
+		ir->mask_keycode = 0x1f;
+		ir->mask_keyup = 0x60;
+		ir->polling = 50; /* ms */
+		break;
+	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
+		ir_codes = RC_MAP_CINERGY_1400;
+		ir->sampling = 0xeb04; /* address */
+		break;
+	case CX88_BOARD_HAUPPAUGE:
+	case CX88_BOARD_HAUPPAUGE_DVB_T1:
+	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
+	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
+	case CX88_BOARD_HAUPPAUGE_HVR1100:
+	case CX88_BOARD_HAUPPAUGE_HVR3000:
+	case CX88_BOARD_HAUPPAUGE_HVR4000:
+	case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
+	case CX88_BOARD_PCHDTV_HD3000:
+	case CX88_BOARD_PCHDTV_HD5500:
+	case CX88_BOARD_HAUPPAUGE_IRONLY:
+		ir_codes = RC_MAP_HAUPPAUGE;
+		ir->sampling = 1;
+		break;
+	case CX88_BOARD_WINFAST_DTV2000H:
+	case CX88_BOARD_WINFAST_DTV2000H_J:
+	case CX88_BOARD_WINFAST_DTV1800H:
+	case CX88_BOARD_WINFAST_DTV1800H_XC4000:
+	case CX88_BOARD_WINFAST_DTV2000H_PLUS:
+		ir_codes = RC_MAP_WINFAST;
+		ir->gpio_addr = MO_GP0_IO;
+		ir->mask_keycode = 0x8f8;
+		ir->mask_keyup = 0x100;
+		ir->polling = 50; /* ms */
+		break;
+	case CX88_BOARD_WINFAST2000XP_EXPERT:
+	case CX88_BOARD_WINFAST_DTV1000:
+	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
+	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
+	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
+		ir_codes = RC_MAP_WINFAST;
+		ir->gpio_addr = MO_GP0_IO;
+		ir->mask_keycode = 0x8f8;
+		ir->mask_keyup = 0x100;
+		ir->polling = 1; /* ms */
+		break;
+	case CX88_BOARD_IODATA_GVBCTV7E:
+		ir_codes = RC_MAP_IODATA_BCTV7E;
+		ir->gpio_addr = MO_GP0_IO;
+		ir->mask_keycode = 0xfd;
+		ir->mask_keydown = 0x02;
+		ir->polling = 5; /* ms */
+		break;
+	case CX88_BOARD_PROLINK_PLAYTVPVR:
+	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
+		/*
+		 * It seems that this hardware is paired with NEC extended
+		 * address 0x866b. So, unfortunately, its usage with other
+		 * IR's with different address won't work. Still, there are
+		 * other IR's from the same manufacturer that works, like the
+		 * 002-T mini RC, provided with newer PV hardware
+		 */
+		ir_codes = RC_MAP_PIXELVIEW_MK12;
+		rc_proto = RC_PROTO_BIT_NECX;
+		ir->gpio_addr = MO_GP1_IO;
+		ir->mask_keyup = 0x80;
+		ir->polling = 10; /* ms */
+		hardware_mask = 0x3f;	/* Hardware returns only 6 bits from command part */
+		break;
+	case CX88_BOARD_PROLINK_PV_8000GT:
+	case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
+		ir_codes = RC_MAP_PIXELVIEW_NEW;
+		ir->gpio_addr = MO_GP1_IO;
+		ir->mask_keycode = 0x3f;
+		ir->mask_keyup = 0x80;
+		ir->polling = 1; /* ms */
+		break;
+	case CX88_BOARD_KWORLD_LTV883:
+		ir_codes = RC_MAP_PIXELVIEW;
+		ir->gpio_addr = MO_GP1_IO;
+		ir->mask_keycode = 0x1f;
+		ir->mask_keyup = 0x60;
+		ir->polling = 1; /* ms */
+		break;
+	case CX88_BOARD_ADSTECH_DVB_T_PCI:
+		ir_codes = RC_MAP_ADSTECH_DVB_T_PCI;
+		ir->gpio_addr = MO_GP1_IO;
+		ir->mask_keycode = 0xbf;
+		ir->mask_keyup = 0x40;
+		ir->polling = 50; /* ms */
+		break;
+	case CX88_BOARD_MSI_TVANYWHERE_MASTER:
+		ir_codes = RC_MAP_MSI_TVANYWHERE;
+		ir->gpio_addr = MO_GP1_IO;
+		ir->mask_keycode = 0x1f;
+		ir->mask_keyup = 0x40;
+		ir->polling = 1; /* ms */
+		break;
+	case CX88_BOARD_AVERTV_303:
+	case CX88_BOARD_AVERTV_STUDIO_303:
+		ir_codes         = RC_MAP_AVERTV_303;
+		ir->gpio_addr    = MO_GP2_IO;
+		ir->mask_keycode = 0xfb;
+		ir->mask_keydown = 0x02;
+		ir->polling      = 50; /* ms */
+		break;
+	case CX88_BOARD_OMICOM_SS4_PCI:
+	case CX88_BOARD_SATTRADE_ST4200:
+	case CX88_BOARD_TBS_8920:
+	case CX88_BOARD_TBS_8910:
+	case CX88_BOARD_PROF_7300:
+	case CX88_BOARD_PROF_7301:
+	case CX88_BOARD_PROF_6200:
+		ir_codes = RC_MAP_TBS_NEC;
+		ir->sampling = 0xff00; /* address */
+		break;
+	case CX88_BOARD_TEVII_S464:
+	case CX88_BOARD_TEVII_S460:
+	case CX88_BOARD_TEVII_S420:
+		ir_codes = RC_MAP_TEVII_NEC;
+		ir->sampling = 0xff00; /* address */
+		break;
+	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
+		ir_codes         = RC_MAP_DNTV_LIVE_DVBT_PRO;
+		ir->sampling     = 0xff00; /* address */
+		break;
+	case CX88_BOARD_NORWOOD_MICRO:
+		ir_codes         = RC_MAP_NORWOOD;
+		ir->gpio_addr    = MO_GP1_IO;
+		ir->mask_keycode = 0x0e;
+		ir->mask_keyup   = 0x80;
+		ir->polling      = 50; /* ms */
+		break;
+	case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
+		ir_codes         = RC_MAP_NPGTECH;
+		ir->gpio_addr    = MO_GP0_IO;
+		ir->mask_keycode = 0xfa;
+		ir->polling      = 50; /* ms */
+		break;
+	case CX88_BOARD_PINNACLE_PCTV_HD_800i:
+		ir_codes         = RC_MAP_PINNACLE_PCTV_HD;
+		ir->sampling     = 1;
+		break;
+	case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
+		ir_codes         = RC_MAP_POWERCOLOR_REAL_ANGEL;
+		ir->gpio_addr    = MO_GP2_IO;
+		ir->mask_keycode = 0x7e;
+		ir->polling      = 100; /* ms */
+		break;
+	case CX88_BOARD_TWINHAN_VP1027_DVBS:
+		ir_codes         = RC_MAP_TWINHAN_VP1027_DVBS;
+		ir->sampling     = 0xff00; /* address */
+		break;
+	}
+
+	if (!ir_codes) {
+		err = -ENODEV;
+		goto err_out_free;
+	}
+
+	/*
+	 * The usage of mask_keycode were very convenient, due to several
+	 * reasons. Among others, the scancode tables were using the scancode
+	 * as the index elements. So, the less bits it was used, the smaller
+	 * the table were stored. After the input changes, the better is to use
+	 * the full scancodes, since it allows replacing the IR remote by
+	 * another one. Unfortunately, there are still some hardware, like
+	 * Pixelview Ultra Pro, where only part of the scancode is sent via
+	 * GPIO. So, there's no way to get the full scancode. Due to that,
+	 * hardware_mask were introduced here: it represents those hardware
+	 * that has such limits.
+	 */
+	if (hardware_mask && !ir->mask_keycode)
+		ir->mask_keycode = hardware_mask;
+
+	/* init input device */
+	snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
+	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
+
+	dev->device_name = ir->name;
+	dev->input_phys = ir->phys;
+	dev->input_id.bustype = BUS_PCI;
+	dev->input_id.version = 1;
+	if (pci->subsystem_vendor) {
+		dev->input_id.vendor = pci->subsystem_vendor;
+		dev->input_id.product = pci->subsystem_device;
+	} else {
+		dev->input_id.vendor = pci->vendor;
+		dev->input_id.product = pci->device;
+	}
+	dev->dev.parent = &pci->dev;
+	dev->map_name = ir_codes;
+	dev->driver_name = MODULE_NAME;
+	dev->priv = core;
+	dev->open = cx88_ir_open;
+	dev->close = cx88_ir_close;
+	dev->scancode_mask = hardware_mask;
+
+	if (ir->sampling) {
+		dev->timeout = MS_TO_US(10); /* 10 ms */
+	} else {
+		dev->driver_type = RC_DRIVER_SCANCODE;
+		dev->allowed_protocols = rc_proto;
+	}
+
+	ir->core = core;
+	core->ir = ir;
+
+	/* all done */
+	err = rc_register_device(dev);
+	if (err)
+		goto err_out_free;
+
+	return 0;
+
+err_out_free:
+	rc_free_device(dev);
+	core->ir = NULL;
+	kfree(ir);
+	return err;
+}
+
+int cx88_ir_fini(struct cx88_core *core)
+{
+	struct cx88_IR *ir = core->ir;
+
+	/* skip detach on non attached boards */
+	if (!ir)
+		return 0;
+
+	cx88_ir_stop(core);
+	rc_unregister_device(ir->dev);
+	kfree(ir);
+
+	/* done */
+	core->ir = NULL;
+	return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+void cx88_ir_irq(struct cx88_core *core)
+{
+	struct cx88_IR *ir = core->ir;
+	u32 samples;
+	unsigned int todo, bits;
+	struct ir_raw_event ev = {};
+
+	if (!ir || !ir->sampling)
+		return;
+
+	/*
+	 * Samples are stored in a 32 bit register, oldest sample in
+	 * the msb. A set bit represents space and an unset bit
+	 * represents a pulse.
+	 */
+	samples = cx_read(MO_SAMPLE_IO);
+
+	if (samples == 0xff && ir->dev->idle)
+		return;
+
+	for (todo = 32; todo > 0; todo -= bits) {
+		ev.pulse = samples & 0x80000000 ? false : true;
+		bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples));
+		ev.duration = (bits * (USEC_PER_SEC / 1000)) / ir_samplerate;
+		ir_raw_event_store_with_filter(ir->dev, &ev);
+		samples <<= bits;
+	}
+	ir_raw_event_handle(ir->dev);
+}
+
+static int get_key_pvr2000(struct IR_i2c *ir, enum rc_proto *protocol,
+			   u32 *scancode, u8 *toggle)
+{
+	int flags, code;
+
+	/* poll IR chip */
+	flags = i2c_smbus_read_byte_data(ir->c, 0x10);
+	if (flags < 0) {
+		dprintk("read error\n");
+		return 0;
+	}
+	/* key pressed ? */
+	if (0 == (flags & 0x80))
+		return 0;
+
+	/* read actual key code */
+	code = i2c_smbus_read_byte_data(ir->c, 0x00);
+	if (code < 0) {
+		dprintk("read error\n");
+		return 0;
+	}
+
+	dprintk("IR Key/Flags: (0x%02x/0x%02x)\n",
+		code & 0xff, flags & 0xff);
+
+	*protocol = RC_PROTO_UNKNOWN;
+	*scancode = code & 0xff;
+	*toggle = 0;
+	return 1;
+}
+
+void cx88_i2c_init_ir(struct cx88_core *core)
+{
+	struct i2c_board_info info;
+	static const unsigned short default_addr_list[] = {
+		0x18, 0x33, 0x6b, 0x71,
+		I2C_CLIENT_END
+	};
+	static const unsigned short pvr2000_addr_list[] = {
+		0x18, 0x1a,
+		I2C_CLIENT_END
+	};
+	const unsigned short *addr_list = default_addr_list;
+	const unsigned short *addrp;
+	/* Instantiate the IR receiver device, if present */
+	if (core->i2c_rc != 0)
+		return;
+
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	strscpy(info.type, "ir_video", I2C_NAME_SIZE);
+
+	switch (core->boardnr) {
+	case CX88_BOARD_LEADTEK_PVR2000:
+		addr_list = pvr2000_addr_list;
+		core->init_data.name = "cx88 Leadtek PVR 2000 remote";
+		core->init_data.type = RC_PROTO_BIT_UNKNOWN;
+		core->init_data.get_key = get_key_pvr2000;
+		core->init_data.ir_codes = RC_MAP_EMPTY;
+		break;
+	}
+
+	/*
+	 * We can't call i2c_new_scanned_device() because it uses
+	 * quick writes for probing and at least some RC receiver
+	 * devices only reply to reads.
+	 * Also, Hauppauge XVR needs to be specified, as address 0x71
+	 * conflicts with another remote type used with saa7134
+	 */
+	for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) {
+		info.platform_data = NULL;
+		memset(&core->init_data, 0, sizeof(core->init_data));
+
+		if (*addrp == 0x71) {
+			/* Hauppauge Z8F0811 */
+			strscpy(info.type, "ir_z8f0811_haup", I2C_NAME_SIZE);
+			core->init_data.name = core->board.name;
+			core->init_data.ir_codes = RC_MAP_HAUPPAUGE;
+			core->init_data.type = RC_PROTO_BIT_RC5 |
+				RC_PROTO_BIT_RC6_MCE | RC_PROTO_BIT_RC6_6A_32;
+			core->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
+
+			info.platform_data = &core->init_data;
+		}
+		if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0,
+				   I2C_SMBUS_READ, 0,
+				   I2C_SMBUS_QUICK, NULL) >= 0) {
+			info.addr = *addrp;
+			i2c_new_client_device(&core->i2c_adap, &info);
+			break;
+		}
+	}
+}
+
+/* ---------------------------------------------------------------------- */
+
+MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
+MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
+MODULE_LICENSE("GPL");