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/iio/light/cros_ec_light_prox.c | 267 +++++++++++++++++++++++++++++++++ 1 file changed, 267 insertions(+) create mode 100644 drivers/iio/light/cros_ec_light_prox.c (limited to 'drivers/iio/light/cros_ec_light_prox.c') diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c new file mode 100644 index 000000000..19e529c84 --- /dev/null +++ b/drivers/iio/light/cros_ec_light_prox.c @@ -0,0 +1,267 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * cros_ec_light_prox - Driver for light and prox sensors behing CrosEC. + * + * Copyright (C) 2017 Google, Inc + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * We only represent one entry for light or proximity. EC is merging different + * light sensors to return the what the eye would see. For proximity, we + * currently support only one light source. + */ +#define CROS_EC_LIGHT_PROX_MAX_CHANNELS (1 + 1) + +/* State data for ec_sensors iio driver. */ +struct cros_ec_light_prox_state { + /* Shared by all sensors */ + struct cros_ec_sensors_core_state core; + + struct iio_chan_spec channels[CROS_EC_LIGHT_PROX_MAX_CHANNELS]; +}; + +static int cros_ec_light_prox_read(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct cros_ec_light_prox_state *st = iio_priv(indio_dev); + u16 data = 0; + s64 val64; + int ret; + int idx = chan->scan_index; + + mutex_lock(&st->core.cmd_lock); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (chan->type == IIO_PROXIMITY) { + ret = cros_ec_sensors_read_cmd(indio_dev, 1 << idx, + (s16 *)&data); + if (ret) + break; + *val = data; + ret = IIO_VAL_INT; + } else { + ret = -EINVAL; + } + break; + case IIO_CHAN_INFO_PROCESSED: + if (chan->type == IIO_LIGHT) { + ret = cros_ec_sensors_read_cmd(indio_dev, 1 << idx, + (s16 *)&data); + if (ret) + break; + /* + * The data coming from the light sensor is + * pre-processed and represents the ambient light + * illuminance reading expressed in lux. + */ + *val = data; + ret = IIO_VAL_INT; + } else { + ret = -EINVAL; + } + break; + case IIO_CHAN_INFO_CALIBBIAS: + st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET; + st->core.param.sensor_offset.flags = 0; + + ret = cros_ec_motion_send_host_cmd(&st->core, 0); + if (ret) + break; + + /* Save values */ + st->core.calib[0].offset = + st->core.resp->sensor_offset.offset[0]; + + *val = st->core.calib[idx].offset; + ret = IIO_VAL_INT; + break; + case IIO_CHAN_INFO_CALIBSCALE: + /* + * RANGE is used for calibration + * scale is a number x.y, where x is coded on 16 bits, + * y coded on 16 bits, between 0 and 9999. + */ + st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE; + st->core.param.sensor_range.data = EC_MOTION_SENSE_NO_VALUE; + + ret = cros_ec_motion_send_host_cmd(&st->core, 0); + if (ret) + break; + + val64 = st->core.resp->sensor_range.ret; + *val = val64 >> 16; + *val2 = (val64 & 0xffff) * 100; + ret = IIO_VAL_INT_PLUS_MICRO; + break; + default: + ret = cros_ec_sensors_core_read(&st->core, chan, val, val2, + mask); + break; + } + + mutex_unlock(&st->core.cmd_lock); + + return ret; +} + +static int cros_ec_light_prox_write(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct cros_ec_light_prox_state *st = iio_priv(indio_dev); + int ret; + int idx = chan->scan_index; + + mutex_lock(&st->core.cmd_lock); + + switch (mask) { + case IIO_CHAN_INFO_CALIBBIAS: + st->core.calib[idx].offset = val; + /* Send to EC for each axis, even if not complete */ + st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET; + st->core.param.sensor_offset.flags = MOTION_SENSE_SET_OFFSET; + st->core.param.sensor_offset.offset[0] = + st->core.calib[0].offset; + st->core.param.sensor_offset.temp = + EC_MOTION_SENSE_INVALID_CALIB_TEMP; + ret = cros_ec_motion_send_host_cmd(&st->core, 0); + break; + case IIO_CHAN_INFO_CALIBSCALE: + st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE; + st->core.curr_range = (val << 16) | (val2 / 100); + st->core.param.sensor_range.data = st->core.curr_range; + ret = cros_ec_motion_send_host_cmd(&st->core, 0); + if (ret == 0) + st->core.range_updated = true; + break; + default: + ret = cros_ec_sensors_core_write(&st->core, chan, val, val2, + mask); + break; + } + + mutex_unlock(&st->core.cmd_lock); + + return ret; +} + +static const struct iio_info cros_ec_light_prox_info = { + .read_raw = &cros_ec_light_prox_read, + .write_raw = &cros_ec_light_prox_write, + .read_avail = &cros_ec_sensors_core_read_avail, +}; + +static int cros_ec_light_prox_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct iio_dev *indio_dev; + struct cros_ec_light_prox_state *state; + struct iio_chan_spec *channel; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*state)); + if (!indio_dev) + return -ENOMEM; + + ret = cros_ec_sensors_core_init(pdev, indio_dev, true, + cros_ec_sensors_capture); + if (ret) + return ret; + + indio_dev->info = &cros_ec_light_prox_info; + state = iio_priv(indio_dev); + channel = state->channels; + + /* Common part */ + channel->info_mask_shared_by_all = + BIT(IIO_CHAN_INFO_SAMP_FREQ); + channel->info_mask_shared_by_all_available = + BIT(IIO_CHAN_INFO_SAMP_FREQ); + channel->scan_type.realbits = CROS_EC_SENSOR_BITS; + channel->scan_type.storagebits = CROS_EC_SENSOR_BITS; + channel->scan_type.shift = 0; + channel->scan_index = 0; + channel->ext_info = cros_ec_sensors_ext_info; + channel->scan_type.sign = 'u'; + + /* Sensor specific */ + switch (state->core.type) { + case MOTIONSENSE_TYPE_LIGHT: + channel->type = IIO_LIGHT; + channel->info_mask_separate = + BIT(IIO_CHAN_INFO_PROCESSED) | + BIT(IIO_CHAN_INFO_CALIBBIAS) | + BIT(IIO_CHAN_INFO_CALIBSCALE); + break; + case MOTIONSENSE_TYPE_PROX: + channel->type = IIO_PROXIMITY; + channel->info_mask_separate = + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_CALIBBIAS) | + BIT(IIO_CHAN_INFO_CALIBSCALE); + break; + default: + dev_warn(dev, "Unknown motion sensor\n"); + return -EINVAL; + } + + /* Timestamp */ + channel++; + channel->type = IIO_TIMESTAMP; + channel->channel = -1; + channel->scan_index = 1; + channel->scan_type.sign = 's'; + channel->scan_type.realbits = 64; + channel->scan_type.storagebits = 64; + + indio_dev->channels = state->channels; + + indio_dev->num_channels = CROS_EC_LIGHT_PROX_MAX_CHANNELS; + + state->core.read_ec_sensors_data = cros_ec_sensors_read_cmd; + + return cros_ec_sensors_core_register(dev, indio_dev, + cros_ec_sensors_push_data); +} + +static const struct platform_device_id cros_ec_light_prox_ids[] = { + { + .name = "cros-ec-prox", + }, + { + .name = "cros-ec-light", + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, cros_ec_light_prox_ids); + +static struct platform_driver cros_ec_light_prox_platform_driver = { + .driver = { + .name = "cros-ec-light-prox", + .pm = &cros_ec_sensors_pm_ops, + }, + .probe = cros_ec_light_prox_probe, + .id_table = cros_ec_light_prox_ids, +}; +module_platform_driver(cros_ec_light_prox_platform_driver); + +MODULE_DESCRIPTION("ChromeOS EC light/proximity sensors driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3