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/media/usb/ttusb-dec/ttusbdecfe.c | 289 +++++++++++++++++++++++++++++++ 1 file changed, 289 insertions(+) create mode 100644 drivers/media/usb/ttusb-dec/ttusbdecfe.c (limited to 'drivers/media/usb/ttusb-dec/ttusbdecfe.c') diff --git a/drivers/media/usb/ttusb-dec/ttusbdecfe.c b/drivers/media/usb/ttusb-dec/ttusbdecfe.c new file mode 100644 index 000000000..ea25b96b8 --- /dev/null +++ b/drivers/media/usb/ttusb-dec/ttusbdecfe.c @@ -0,0 +1,289 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * TTUSB DEC Frontend Driver + * + * Copyright (C) 2003-2004 Alex Woods + */ + +#include +#include "ttusbdecfe.h" + + +#define LOF_HI 10600000 +#define LOF_LO 9750000 + +struct ttusbdecfe_state { + + /* configuration settings */ + const struct ttusbdecfe_config* config; + + struct dvb_frontend frontend; + + u8 hi_band; + u8 voltage; +}; + + +static int ttusbdecfe_dvbs_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | + FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK; + return 0; +} + + +static int ttusbdecfe_dvbt_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + struct ttusbdecfe_state* state = fe->demodulator_priv; + u8 b[] = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }; + u8 result[4]; + int len, ret; + + *status=0; + + ret=state->config->send_command(fe, 0x73, sizeof(b), b, &len, result); + if(ret) + return ret; + + if(len != 4) { + printk(KERN_ERR "%s: unexpected reply\n", __func__); + return -EIO; + } + + switch(result[3]) { + case 1: /* not tuned yet */ + case 2: /* no signal/no lock*/ + break; + case 3: /* signal found and locked*/ + *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | + FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK; + break; + case 4: + *status = FE_TIMEDOUT; + break; + default: + pr_info("%s: returned unknown value: %d\n", + __func__, result[3]); + return -EIO; + } + + return 0; +} + +static int ttusbdecfe_dvbt_set_frontend(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *p = &fe->dtv_property_cache; + struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; + u8 b[] = { 0x00, 0x00, 0x00, 0x03, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0xff, + 0x00, 0x00, 0x00, 0xff }; + + __be32 freq = htonl(p->frequency / 1000); + memcpy(&b[4], &freq, sizeof (u32)); + state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL); + + return 0; +} + +static int ttusbdecfe_dvbt_get_tune_settings(struct dvb_frontend* fe, + struct dvb_frontend_tune_settings* fesettings) +{ + fesettings->min_delay_ms = 1500; + /* Drift compensation makes no sense for DVB-T */ + fesettings->step_size = 0; + fesettings->max_drift = 0; + return 0; +} + +static int ttusbdecfe_dvbs_set_frontend(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *p = &fe->dtv_property_cache; + struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; + + u8 b[] = { 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }; + __be32 freq; + __be32 sym_rate; + __be32 band; + __be32 lnb_voltage; + + freq = htonl(p->frequency + + (state->hi_band ? LOF_HI : LOF_LO)); + memcpy(&b[4], &freq, sizeof(u32)); + sym_rate = htonl(p->symbol_rate); + memcpy(&b[12], &sym_rate, sizeof(u32)); + band = htonl(state->hi_band ? LOF_HI : LOF_LO); + memcpy(&b[24], &band, sizeof(u32)); + lnb_voltage = htonl(state->voltage); + memcpy(&b[28], &lnb_voltage, sizeof(u32)); + + state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL); + + return 0; +} + +static int ttusbdecfe_dvbs_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd) +{ + struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; + u8 b[] = { 0x00, 0xff, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00 }; + + if (cmd->msg_len > sizeof(b) - 4) + return -EINVAL; + + memcpy(&b[4], cmd->msg, cmd->msg_len); + + state->config->send_command(fe, 0x72, + sizeof(b) - (6 - cmd->msg_len), b, + NULL, NULL); + + return 0; +} + + +static int ttusbdecfe_dvbs_set_tone(struct dvb_frontend *fe, + enum fe_sec_tone_mode tone) +{ + struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; + + state->hi_band = (SEC_TONE_ON == tone); + + return 0; +} + + +static int ttusbdecfe_dvbs_set_voltage(struct dvb_frontend *fe, + enum fe_sec_voltage voltage) +{ + struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; + + switch (voltage) { + case SEC_VOLTAGE_13: + state->voltage = 13; + break; + case SEC_VOLTAGE_18: + state->voltage = 18; + break; + default: + return -EINVAL; + } + + return 0; +} + +static void ttusbdecfe_release(struct dvb_frontend* fe) +{ + struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; + kfree(state); +} + +static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops; + +struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* config) +{ + struct ttusbdecfe_state* state = NULL; + + /* allocate memory for the internal state */ + state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL); + if (state == NULL) + return NULL; + + /* setup the state */ + state->config = config; + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, &ttusbdecfe_dvbt_ops, sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + return &state->frontend; +} + +static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops; + +struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* config) +{ + struct ttusbdecfe_state* state = NULL; + + /* allocate memory for the internal state */ + state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL); + if (state == NULL) + return NULL; + + /* setup the state */ + state->config = config; + state->voltage = 0; + state->hi_band = 0; + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, &ttusbdecfe_dvbs_ops, sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + return &state->frontend; +} + +static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops = { + .delsys = { SYS_DVBT }, + .info = { + .name = "TechnoTrend/Hauppauge DEC2000-t Frontend", + .frequency_min_hz = 51 * MHz, + .frequency_max_hz = 858 * MHz, + .frequency_stepsize_hz = 62500, + .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO, + }, + + .release = ttusbdecfe_release, + + .set_frontend = ttusbdecfe_dvbt_set_frontend, + + .get_tune_settings = ttusbdecfe_dvbt_get_tune_settings, + + .read_status = ttusbdecfe_dvbt_read_status, +}; + +static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops = { + .delsys = { SYS_DVBS }, + .info = { + .name = "TechnoTrend/Hauppauge DEC3000-s Frontend", + .frequency_min_hz = 950 * MHz, + .frequency_max_hz = 2150 * MHz, + .frequency_stepsize_hz = 125 * kHz, + .symbol_rate_min = 1000000, /* guessed */ + .symbol_rate_max = 45000000, /* guessed */ + .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QPSK + }, + + .release = ttusbdecfe_release, + + .set_frontend = ttusbdecfe_dvbs_set_frontend, + + .read_status = ttusbdecfe_dvbs_read_status, + + .diseqc_send_master_cmd = ttusbdecfe_dvbs_diseqc_send_master_cmd, + .set_voltage = ttusbdecfe_dvbs_set_voltage, + .set_tone = ttusbdecfe_dvbs_set_tone, +}; + +MODULE_DESCRIPTION("TTUSB DEC DVB-T/S Demodulator driver"); +MODULE_AUTHOR("Alex Woods/Andrew de Quincey"); +MODULE_LICENSE("GPL"); + +EXPORT_SYMBOL(ttusbdecfe_dvbt_attach); +EXPORT_SYMBOL(ttusbdecfe_dvbs_attach); -- cgit v1.2.3