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(). ... --- sound/drivers/pcsp/pcsp.c | 221 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 221 insertions(+) create mode 100644 sound/drivers/pcsp/pcsp.c (limited to 'sound/drivers/pcsp/pcsp.c') diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c new file mode 100644 index 000000000..c7be1c395 --- /dev/null +++ b/sound/drivers/pcsp/pcsp.c @@ -0,0 +1,221 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * PC-Speaker driver for Linux + * + * Copyright (C) 1997-2001 David Woodhouse + * Copyright (C) 2001-2008 Stas Sergeev + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "pcsp_input.h" +#include "pcsp.h" + +MODULE_AUTHOR("Stas Sergeev "); +MODULE_DESCRIPTION("PC-Speaker driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pcspkr"); + +static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ +static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ +static bool enable = SNDRV_DEFAULT_ENABLE1; /* Enable this card */ +static bool nopcm; /* Disable PCM capability of the driver */ + +module_param(index, int, 0444); +MODULE_PARM_DESC(index, "Index value for pcsp soundcard."); +module_param(id, charp, 0444); +MODULE_PARM_DESC(id, "ID string for pcsp soundcard."); +module_param(enable, bool, 0444); +MODULE_PARM_DESC(enable, "Enable PC-Speaker sound."); +module_param(nopcm, bool, 0444); +MODULE_PARM_DESC(nopcm, "Disable PC-Speaker PCM sound. Only beeps remain."); + +struct snd_pcsp pcsp_chip; + +static int snd_pcsp_create(struct snd_card *card) +{ + unsigned int resolution = hrtimer_resolution; + int div, min_div, order; + + if (!nopcm) { + if (resolution > PCSP_MAX_PERIOD_NS) { + printk(KERN_ERR "PCSP: Timer resolution is not sufficient " + "(%unS)\n", resolution); + printk(KERN_ERR "PCSP: Make sure you have HPET and ACPI " + "enabled.\n"); + printk(KERN_ERR "PCSP: Turned into nopcm mode.\n"); + nopcm = 1; + } + } + + if (loops_per_jiffy >= PCSP_MIN_LPJ && resolution <= PCSP_MIN_PERIOD_NS) + min_div = MIN_DIV; + else + min_div = MAX_DIV; +#if PCSP_DEBUG + printk(KERN_DEBUG "PCSP: lpj=%li, min_div=%i, res=%u\n", + loops_per_jiffy, min_div, resolution); +#endif + + div = MAX_DIV / min_div; + order = fls(div) - 1; + + pcsp_chip.max_treble = min(order, PCSP_MAX_TREBLE); + pcsp_chip.treble = min(pcsp_chip.max_treble, PCSP_DEFAULT_TREBLE); + pcsp_chip.playback_ptr = 0; + pcsp_chip.period_ptr = 0; + atomic_set(&pcsp_chip.timer_active, 0); + pcsp_chip.enable = 1; + pcsp_chip.pcspkr = 1; + + spin_lock_init(&pcsp_chip.substream_lock); + + pcsp_chip.card = card; + pcsp_chip.port = 0x61; + pcsp_chip.irq = -1; + pcsp_chip.dma = -1; + card->private_data = &pcsp_chip; + + return 0; +} + +static void pcsp_stop_beep(struct snd_pcsp *chip); + +static void alsa_card_pcsp_free(struct snd_card *card) +{ + pcsp_stop_beep(card->private_data); +} + +static int snd_card_pcsp_probe(int devnum, struct device *dev) +{ + struct snd_card *card; + int err; + + if (devnum != 0) + return -EINVAL; + + hrtimer_init(&pcsp_chip.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + pcsp_chip.timer.function = pcsp_do_timer; + + err = snd_devm_card_new(dev, index, id, THIS_MODULE, 0, &card); + if (err < 0) + return err; + + err = snd_pcsp_create(card); + if (err < 0) + return err; + + if (!nopcm) { + err = snd_pcsp_new_pcm(&pcsp_chip); + if (err < 0) + return err; + } + err = snd_pcsp_new_mixer(&pcsp_chip, nopcm); + if (err < 0) + return err; + + strcpy(card->driver, "PC-Speaker"); + strcpy(card->shortname, "pcsp"); + sprintf(card->longname, "Internal PC-Speaker at port 0x%x", + pcsp_chip.port); + + err = snd_card_register(card); + if (err < 0) + return err; + card->private_free = alsa_card_pcsp_free; + + return 0; +} + +static int alsa_card_pcsp_init(struct device *dev) +{ + int err; + + err = snd_card_pcsp_probe(0, dev); + if (err) { + printk(KERN_ERR "PC-Speaker initialization failed.\n"); + return err; + } + + /* Well, CONFIG_DEBUG_PAGEALLOC makes the sound horrible. Lets alert */ + if (debug_pagealloc_enabled()) { + printk(KERN_WARNING "PCSP: CONFIG_DEBUG_PAGEALLOC is enabled, " + "which may make the sound noisy.\n"); + } + + return 0; +} + +static int pcsp_probe(struct platform_device *dev) +{ + int err; + + err = pcspkr_input_init(&pcsp_chip.input_dev, &dev->dev); + if (err < 0) + return err; + + err = alsa_card_pcsp_init(&dev->dev); + if (err < 0) + return err; + + platform_set_drvdata(dev, &pcsp_chip); + return 0; +} + +static void pcsp_stop_beep(struct snd_pcsp *chip) +{ + pcsp_sync_stop(chip); + pcspkr_stop_sound(); +} + +#ifdef CONFIG_PM_SLEEP +static int pcsp_suspend(struct device *dev) +{ + struct snd_pcsp *chip = dev_get_drvdata(dev); + pcsp_stop_beep(chip); + return 0; +} + +static SIMPLE_DEV_PM_OPS(pcsp_pm, pcsp_suspend, NULL); +#define PCSP_PM_OPS &pcsp_pm +#else +#define PCSP_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ + +static void pcsp_shutdown(struct platform_device *dev) +{ + struct snd_pcsp *chip = platform_get_drvdata(dev); + pcsp_stop_beep(chip); +} + +static struct platform_driver pcsp_platform_driver = { + .driver = { + .name = "pcspkr", + .pm = PCSP_PM_OPS, + }, + .probe = pcsp_probe, + .shutdown = pcsp_shutdown, +}; + +static int __init pcsp_init(void) +{ + if (!enable) + return -ENODEV; + return platform_driver_register(&pcsp_platform_driver); +} + +static void __exit pcsp_exit(void) +{ + platform_driver_unregister(&pcsp_platform_driver); +} + +module_init(pcsp_init); +module_exit(pcsp_exit); -- cgit v1.2.3