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/opl4/opl4_lib.c | 252 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100644 sound/drivers/opl4/opl4_lib.c (limited to 'sound/drivers/opl4/opl4_lib.c') diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c new file mode 100644 index 000000000..035645eb5 --- /dev/null +++ b/sound/drivers/opl4/opl4_lib.c @@ -0,0 +1,252 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Functions for accessing OPL4 devices + * Copyright (c) 2003 by Clemens Ladisch + */ + +#include "opl4_local.h" +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Clemens Ladisch "); +MODULE_DESCRIPTION("OPL4 driver"); +MODULE_LICENSE("GPL"); + +static inline void snd_opl4_wait(struct snd_opl4 *opl4) +{ + int timeout = 10; + while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0) + ; +} + +void snd_opl4_write(struct snd_opl4 *opl4, u8 reg, u8 value) +{ + snd_opl4_wait(opl4); + outb(reg, opl4->pcm_port); + + snd_opl4_wait(opl4); + outb(value, opl4->pcm_port + 1); +} + +EXPORT_SYMBOL(snd_opl4_write); + +u8 snd_opl4_read(struct snd_opl4 *opl4, u8 reg) +{ + snd_opl4_wait(opl4); + outb(reg, opl4->pcm_port); + + snd_opl4_wait(opl4); + return inb(opl4->pcm_port + 1); +} + +EXPORT_SYMBOL(snd_opl4_read); + +void snd_opl4_read_memory(struct snd_opl4 *opl4, char *buf, int offset, int size) +{ + unsigned long flags; + u8 memcfg; + + spin_lock_irqsave(&opl4->reg_lock, flags); + + memcfg = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION); + snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg | OPL4_MODE_BIT); + + snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_HIGH, offset >> 16); + snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_MID, offset >> 8); + snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_LOW, offset); + + snd_opl4_wait(opl4); + outb(OPL4_REG_MEMORY_DATA, opl4->pcm_port); + snd_opl4_wait(opl4); + insb(opl4->pcm_port + 1, buf, size); + + snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg); + + spin_unlock_irqrestore(&opl4->reg_lock, flags); +} + +EXPORT_SYMBOL(snd_opl4_read_memory); + +void snd_opl4_write_memory(struct snd_opl4 *opl4, const char *buf, int offset, int size) +{ + unsigned long flags; + u8 memcfg; + + spin_lock_irqsave(&opl4->reg_lock, flags); + + memcfg = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION); + snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg | OPL4_MODE_BIT); + + snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_HIGH, offset >> 16); + snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_MID, offset >> 8); + snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_LOW, offset); + + snd_opl4_wait(opl4); + outb(OPL4_REG_MEMORY_DATA, opl4->pcm_port); + snd_opl4_wait(opl4); + outsb(opl4->pcm_port + 1, buf, size); + + snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg); + + spin_unlock_irqrestore(&opl4->reg_lock, flags); +} + +EXPORT_SYMBOL(snd_opl4_write_memory); + +static void snd_opl4_enable_opl4(struct snd_opl4 *opl4) +{ + outb(OPL3_REG_MODE, opl4->fm_port + 2); + inb(opl4->fm_port); + inb(opl4->fm_port); + outb(OPL3_OPL3_ENABLE | OPL3_OPL4_ENABLE, opl4->fm_port + 3); + inb(opl4->fm_port); + inb(opl4->fm_port); +} + +static int snd_opl4_detect(struct snd_opl4 *opl4) +{ + u8 id1, id2; + + snd_opl4_enable_opl4(opl4); + + id1 = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION); + snd_printdd("OPL4[02]=%02x\n", id1); + switch (id1 & OPL4_DEVICE_ID_MASK) { + case 0x20: + opl4->hardware = OPL3_HW_OPL4; + break; + case 0x40: + opl4->hardware = OPL3_HW_OPL4_ML; + break; + default: + return -ENODEV; + } + + snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_FM, 0x00); + snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_PCM, 0xff); + id1 = snd_opl4_read(opl4, OPL4_REG_MIX_CONTROL_FM); + id2 = snd_opl4_read(opl4, OPL4_REG_MIX_CONTROL_PCM); + snd_printdd("OPL4 id1=%02x id2=%02x\n", id1, id2); + if (id1 != 0x00 || id2 != 0xff) + return -ENODEV; + + snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_FM, 0x3f); + snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_PCM, 0x3f); + snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, 0x00); + return 0; +} + +#if IS_ENABLED(CONFIG_SND_SEQUENCER) +static void snd_opl4_seq_dev_free(struct snd_seq_device *seq_dev) +{ + struct snd_opl4 *opl4 = seq_dev->private_data; + opl4->seq_dev = NULL; +} + +static int snd_opl4_create_seq_dev(struct snd_opl4 *opl4, int seq_device) +{ + opl4->seq_dev_num = seq_device; + if (snd_seq_device_new(opl4->card, seq_device, SNDRV_SEQ_DEV_ID_OPL4, + sizeof(struct snd_opl4 *), &opl4->seq_dev) >= 0) { + strcpy(opl4->seq_dev->name, "OPL4 Wavetable"); + *(struct snd_opl4 **)SNDRV_SEQ_DEVICE_ARGPTR(opl4->seq_dev) = opl4; + opl4->seq_dev->private_data = opl4; + opl4->seq_dev->private_free = snd_opl4_seq_dev_free; + } + return 0; +} +#endif + +static void snd_opl4_free(struct snd_opl4 *opl4) +{ + snd_opl4_free_proc(opl4); + release_and_free_resource(opl4->res_fm_port); + release_and_free_resource(opl4->res_pcm_port); + kfree(opl4); +} + +static int snd_opl4_dev_free(struct snd_device *device) +{ + struct snd_opl4 *opl4 = device->device_data; + snd_opl4_free(opl4); + return 0; +} + +int snd_opl4_create(struct snd_card *card, + unsigned long fm_port, unsigned long pcm_port, + int seq_device, + struct snd_opl3 **ropl3, struct snd_opl4 **ropl4) +{ + struct snd_opl4 *opl4; + struct snd_opl3 *opl3; + int err; + static const struct snd_device_ops ops = { + .dev_free = snd_opl4_dev_free + }; + + if (ropl3) + *ropl3 = NULL; + if (ropl4) + *ropl4 = NULL; + + opl4 = kzalloc(sizeof(*opl4), GFP_KERNEL); + if (!opl4) + return -ENOMEM; + + opl4->res_fm_port = request_region(fm_port, 8, "OPL4 FM"); + opl4->res_pcm_port = request_region(pcm_port, 8, "OPL4 PCM/MIX"); + if (!opl4->res_fm_port || !opl4->res_pcm_port) { + snd_printk(KERN_ERR "opl4: can't grab ports 0x%lx, 0x%lx\n", fm_port, pcm_port); + snd_opl4_free(opl4); + return -EBUSY; + } + + opl4->card = card; + opl4->fm_port = fm_port; + opl4->pcm_port = pcm_port; + spin_lock_init(&opl4->reg_lock); + mutex_init(&opl4->access_mutex); + + err = snd_opl4_detect(opl4); + if (err < 0) { + snd_opl4_free(opl4); + snd_printd("OPL4 chip not detected at %#lx/%#lx\n", fm_port, pcm_port); + return err; + } + + err = snd_device_new(card, SNDRV_DEV_CODEC, opl4, &ops); + if (err < 0) { + snd_opl4_free(opl4); + return err; + } + + err = snd_opl3_create(card, fm_port, fm_port + 2, opl4->hardware, 1, &opl3); + if (err < 0) { + snd_device_free(card, opl4); + return err; + } + + /* opl3 initialization disabled opl4, so reenable */ + snd_opl4_enable_opl4(opl4); + + snd_opl4_create_mixer(opl4); + snd_opl4_create_proc(opl4); + +#if IS_ENABLED(CONFIG_SND_SEQUENCER) + opl4->seq_client = -1; + if (opl4->hardware < OPL3_HW_OPL4_ML) + snd_opl4_create_seq_dev(opl4, seq_device); +#endif + + if (ropl3) + *ropl3 = opl3; + if (ropl4) + *ropl4 = opl4; + return 0; +} + +EXPORT_SYMBOL(snd_opl4_create); -- cgit v1.2.3