From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/input/joystick/iforce/iforce-usb.c | 299 +++++++++++++++++++++++++++++ 1 file changed, 299 insertions(+) create mode 100644 drivers/input/joystick/iforce/iforce-usb.c (limited to 'drivers/input/joystick/iforce/iforce-usb.c') diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c new file mode 100644 index 000000000..cba92bd59 --- /dev/null +++ b/drivers/input/joystick/iforce/iforce-usb.c @@ -0,0 +1,299 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + /* + * Copyright (c) 2000-2002 Vojtech Pavlik + * Copyright (c) 2001-2002, 2007 Johann Deneux + * + * USB/RS232 I-Force joysticks and wheels. + */ + +#include +#include "iforce.h" + +struct iforce_usb { + struct iforce iforce; + + struct usb_device *usbdev; + struct usb_interface *intf; + struct urb *irq, *out; + + u8 data_in[IFORCE_MAX_LENGTH] ____cacheline_aligned; + u8 data_out[IFORCE_MAX_LENGTH] ____cacheline_aligned; +}; + +static void __iforce_usb_xmit(struct iforce *iforce) +{ + struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb, + iforce); + int n, c; + unsigned long flags; + + spin_lock_irqsave(&iforce->xmit_lock, flags); + + if (iforce->xmit.head == iforce->xmit.tail) { + iforce_clear_xmit_and_wake(iforce); + spin_unlock_irqrestore(&iforce->xmit_lock, flags); + return; + } + + ((char *)iforce_usb->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail]; + XMIT_INC(iforce->xmit.tail, 1); + n = iforce->xmit.buf[iforce->xmit.tail]; + XMIT_INC(iforce->xmit.tail, 1); + + iforce_usb->out->transfer_buffer_length = n + 1; + iforce_usb->out->dev = iforce_usb->usbdev; + + /* Copy rest of data then */ + c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE); + if (n < c) c=n; + + memcpy(iforce_usb->out->transfer_buffer + 1, + &iforce->xmit.buf[iforce->xmit.tail], + c); + if (n != c) { + memcpy(iforce_usb->out->transfer_buffer + 1 + c, + &iforce->xmit.buf[0], + n-c); + } + XMIT_INC(iforce->xmit.tail, n); + + if ( (n=usb_submit_urb(iforce_usb->out, GFP_ATOMIC)) ) { + dev_warn(&iforce_usb->intf->dev, + "usb_submit_urb failed %d\n", n); + iforce_clear_xmit_and_wake(iforce); + } + + /* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended. + * As long as the urb completion handler is not called, the transmiting + * is considered to be running */ + spin_unlock_irqrestore(&iforce->xmit_lock, flags); +} + +static void iforce_usb_xmit(struct iforce *iforce) +{ + if (!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) + __iforce_usb_xmit(iforce); +} + +static int iforce_usb_get_id(struct iforce *iforce, u8 id, + u8 *response_data, size_t *response_len) +{ + struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb, + iforce); + u8 *buf; + int status; + + buf = kmalloc(IFORCE_MAX_LENGTH, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + status = usb_control_msg(iforce_usb->usbdev, + usb_rcvctrlpipe(iforce_usb->usbdev, 0), + id, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, + 0, 0, buf, IFORCE_MAX_LENGTH, 1000); + if (status < 0) { + dev_err(&iforce_usb->intf->dev, + "usb_submit_urb failed: %d\n", status); + } else if (buf[0] != id) { + status = -EIO; + } else { + memcpy(response_data, buf, status); + *response_len = status; + status = 0; + } + + kfree(buf); + return status; +} + +static int iforce_usb_start_io(struct iforce *iforce) +{ + struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb, + iforce); + + if (usb_submit_urb(iforce_usb->irq, GFP_KERNEL)) + return -EIO; + + return 0; +} + +static void iforce_usb_stop_io(struct iforce *iforce) +{ + struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb, + iforce); + + usb_kill_urb(iforce_usb->irq); + usb_kill_urb(iforce_usb->out); +} + +static const struct iforce_xport_ops iforce_usb_xport_ops = { + .xmit = iforce_usb_xmit, + .get_id = iforce_usb_get_id, + .start_io = iforce_usb_start_io, + .stop_io = iforce_usb_stop_io, +}; + +static void iforce_usb_irq(struct urb *urb) +{ + struct iforce_usb *iforce_usb = urb->context; + struct iforce *iforce = &iforce_usb->iforce; + struct device *dev = &iforce_usb->intf->dev; + int status; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dev_dbg(dev, "%s - urb shutting down with status: %d\n", + __func__, urb->status); + return; + default: + dev_dbg(dev, "%s - urb has status of: %d\n", + __func__, urb->status); + goto exit; + } + + iforce_process_packet(iforce, iforce_usb->data_in[0], + iforce_usb->data_in + 1, urb->actual_length - 1); + +exit: + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status) + dev_err(dev, "%s - usb_submit_urb failed with result %d\n", + __func__, status); +} + +static void iforce_usb_out(struct urb *urb) +{ + struct iforce_usb *iforce_usb = urb->context; + struct iforce *iforce = &iforce_usb->iforce; + + if (urb->status) { + dev_dbg(&iforce_usb->intf->dev, "urb->status %d, exiting\n", + urb->status); + iforce_clear_xmit_and_wake(iforce); + return; + } + + __iforce_usb_xmit(iforce); + + wake_up_all(&iforce->wait); +} + +static int iforce_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct usb_host_interface *interface; + struct usb_endpoint_descriptor *epirq, *epout; + struct iforce_usb *iforce_usb; + int err = -ENOMEM; + + interface = intf->cur_altsetting; + + if (interface->desc.bNumEndpoints < 2) + return -ENODEV; + + epirq = &interface->endpoint[0].desc; + if (!usb_endpoint_is_int_in(epirq)) + return -ENODEV; + + epout = &interface->endpoint[1].desc; + if (!usb_endpoint_is_int_out(epout)) + return -ENODEV; + + iforce_usb = kzalloc(sizeof(*iforce_usb), GFP_KERNEL); + if (!iforce_usb) + goto fail; + + iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL); + if (!iforce_usb->irq) + goto fail; + + iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL); + if (!iforce_usb->out) + goto fail; + + iforce_usb->iforce.xport_ops = &iforce_usb_xport_ops; + + iforce_usb->usbdev = dev; + iforce_usb->intf = intf; + + usb_fill_int_urb(iforce_usb->irq, dev, + usb_rcvintpipe(dev, epirq->bEndpointAddress), + iforce_usb->data_in, sizeof(iforce_usb->data_in), + iforce_usb_irq, iforce_usb, epirq->bInterval); + + usb_fill_int_urb(iforce_usb->out, dev, + usb_sndintpipe(dev, epout->bEndpointAddress), + iforce_usb->data_out, sizeof(iforce_usb->data_out), + iforce_usb_out, iforce_usb, epout->bInterval); + + err = iforce_init_device(&intf->dev, BUS_USB, &iforce_usb->iforce); + if (err) + goto fail; + + usb_set_intfdata(intf, iforce_usb); + return 0; + +fail: + if (iforce_usb) { + usb_free_urb(iforce_usb->irq); + usb_free_urb(iforce_usb->out); + kfree(iforce_usb); + } + + return err; +} + +static void iforce_usb_disconnect(struct usb_interface *intf) +{ + struct iforce_usb *iforce_usb = usb_get_intfdata(intf); + + usb_set_intfdata(intf, NULL); + + input_unregister_device(iforce_usb->iforce.dev); + + usb_free_urb(iforce_usb->irq); + usb_free_urb(iforce_usb->out); + + kfree(iforce_usb); +} + +static const struct usb_device_id iforce_usb_ids[] = { + { USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */ + { USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */ + { USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */ + { USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */ + { USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */ + { USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */ + { USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */ + { USB_DEVICE(0x061c, 0xc084) }, /* ACT LABS Force RS */ + { USB_DEVICE(0x06a3, 0xff04) }, /* Saitek R440 Force Wheel */ + { USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */ + { USB_DEVICE(0x06f8, 0x0003) }, /* Guillemot Jet Leader Force Feedback */ + { USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */ + { USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */ + { } /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE (usb, iforce_usb_ids); + +struct usb_driver iforce_usb_driver = { + .name = "iforce", + .probe = iforce_usb_probe, + .disconnect = iforce_usb_disconnect, + .id_table = iforce_usb_ids, +}; + +module_usb_driver(iforce_usb_driver); + +MODULE_AUTHOR("Vojtech Pavlik , Johann Deneux "); +MODULE_DESCRIPTION("USB I-Force joysticks and wheels driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3