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/dvb-usb/digitv.c | 370 +++++++++++++++++++++++++++++++++++++ 1 file changed, 370 insertions(+) create mode 100644 drivers/media/usb/dvb-usb/digitv.c (limited to 'drivers/media/usb/dvb-usb/digitv.c') diff --git a/drivers/media/usb/dvb-usb/digitv.c b/drivers/media/usb/dvb-usb/digitv.c new file mode 100644 index 000000000..2756815a7 --- /dev/null +++ b/drivers/media/usb/dvb-usb/digitv.c @@ -0,0 +1,370 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0 + * receiver + * + * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de) + * + * partly based on the SDK published by Nebula Electronics + * + * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information + */ +#include "digitv.h" + +#include "mt352.h" +#include "nxt6000.h" + +/* debug */ +static int dvb_usb_digitv_debug; +module_param_named(debug,dvb_usb_digitv_debug, int, 0644); +MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +#define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args) + +static int digitv_ctrl_msg(struct dvb_usb_device *d, + u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen) +{ + struct digitv_state *st = d->priv; + int ret, wo; + + wo = (rbuf == NULL || rlen == 0); /* write-only */ + + if (wlen > 4 || rlen > 4) + return -EIO; + + memset(st->sndbuf, 0, 7); + memset(st->rcvbuf, 0, 7); + + st->sndbuf[0] = cmd; + st->sndbuf[1] = vv; + st->sndbuf[2] = wo ? wlen : rlen; + + if (wo) { + memcpy(&st->sndbuf[3], wbuf, wlen); + ret = dvb_usb_generic_write(d, st->sndbuf, 7); + } else { + ret = dvb_usb_generic_rw(d, st->sndbuf, 7, st->rcvbuf, 7, 10); + memcpy(rbuf, &st->rcvbuf[3], rlen); + } + return ret; +} + +/* I2C */ +static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num) +{ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + int i; + + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + if (num > 2) + warn("more than 2 i2c messages at a time is not handled yet. TODO."); + + for (i = 0; i < num; i++) { + /* write/read request */ + if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { + if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0, + msg[i+1].buf,msg[i+1].len) < 0) + break; + i++; + } else + if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0], + &msg[i].buf[1],msg[i].len-1,NULL,0) < 0) + break; + } + + mutex_unlock(&d->i2c_mutex); + return i; +} + +static u32 digitv_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm digitv_i2c_algo = { + .master_xfer = digitv_i2c_xfer, + .functionality = digitv_i2c_func, +}; + +/* Callbacks for DVB USB */ +static int digitv_identify_state(struct usb_device *udev, + const struct dvb_usb_device_properties *props, + const struct dvb_usb_device_description **desc, + int *cold) +{ + *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0; + return 0; +} + +static int digitv_mt352_demod_init(struct dvb_frontend *fe) +{ + static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 }; + static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50, + 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00, + 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f, + 0x75, 0x32 }; + int i; + + for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2) + mt352_write(fe, &reset_buf[i], 2); + + msleep(1); + + for (i = 0; i < ARRAY_SIZE(init_buf); i += 2) + mt352_write(fe, &init_buf[i], 2); + + return 0; +} + +static struct mt352_config digitv_mt352_config = { + .demod_init = digitv_mt352_demod_init, +}; + +static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe) +{ + struct dvb_usb_adapter *adap = fe->dvb->priv; + u8 b[5]; + + fe->ops.tuner_ops.calc_regs(fe, b, sizeof(b)); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0); +} + +static struct nxt6000_config digitv_nxt6000_config = { + .clock_inversion = 1, +}; + +static int digitv_frontend_attach(struct dvb_usb_adapter *adap) +{ + struct digitv_state *st = adap->dev->priv; + + adap->fe_adap[0].fe = dvb_attach(mt352_attach, &digitv_mt352_config, + &adap->dev->i2c_adap); + if ((adap->fe_adap[0].fe) != NULL) { + st->is_nxt6000 = 0; + return 0; + } + adap->fe_adap[0].fe = dvb_attach(nxt6000_attach, + &digitv_nxt6000_config, + &adap->dev->i2c_adap); + if ((adap->fe_adap[0].fe) != NULL) { + st->is_nxt6000 = 1; + return 0; + } + return -EIO; +} + +static int digitv_tuner_attach(struct dvb_usb_adapter *adap) +{ + struct digitv_state *st = adap->dev->priv; + + if (!dvb_attach(dvb_pll_attach, adap->fe_adap[0].fe, 0x60, NULL, DVB_PLL_TDED4)) + return -ENODEV; + + if (st->is_nxt6000) + adap->fe_adap[0].fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; + + return 0; +} + +static struct rc_map_table rc_map_digitv_table[] = { + { 0x5f55, KEY_0 }, + { 0x6f55, KEY_1 }, + { 0x9f55, KEY_2 }, + { 0xaf55, KEY_3 }, + { 0x5f56, KEY_4 }, + { 0x6f56, KEY_5 }, + { 0x9f56, KEY_6 }, + { 0xaf56, KEY_7 }, + { 0x5f59, KEY_8 }, + { 0x6f59, KEY_9 }, + { 0x9f59, KEY_TV }, + { 0xaf59, KEY_AUX }, + { 0x5f5a, KEY_DVD }, + { 0x6f5a, KEY_POWER }, + { 0x9f5a, KEY_CAMERA }, /* labelled 'Picture' */ + { 0xaf5a, KEY_AUDIO }, + { 0x5f65, KEY_INFO }, + { 0x6f65, KEY_F13 }, /* 16:9 */ + { 0x9f65, KEY_F14 }, /* 14:9 */ + { 0xaf65, KEY_EPG }, + { 0x5f66, KEY_EXIT }, + { 0x6f66, KEY_MENU }, + { 0x9f66, KEY_UP }, + { 0xaf66, KEY_DOWN }, + { 0x5f69, KEY_LEFT }, + { 0x6f69, KEY_RIGHT }, + { 0x9f69, KEY_ENTER }, + { 0xaf69, KEY_CHANNELUP }, + { 0x5f6a, KEY_CHANNELDOWN }, + { 0x6f6a, KEY_VOLUMEUP }, + { 0x9f6a, KEY_VOLUMEDOWN }, + { 0xaf6a, KEY_RED }, + { 0x5f95, KEY_GREEN }, + { 0x6f95, KEY_YELLOW }, + { 0x9f95, KEY_BLUE }, + { 0xaf95, KEY_SUBTITLE }, + { 0x5f96, KEY_F15 }, /* AD */ + { 0x6f96, KEY_TEXT }, + { 0x9f96, KEY_MUTE }, + { 0xaf96, KEY_REWIND }, + { 0x5f99, KEY_STOP }, + { 0x6f99, KEY_PLAY }, + { 0x9f99, KEY_FASTFORWARD }, + { 0xaf99, KEY_F16 }, /* chapter */ + { 0x5f9a, KEY_PAUSE }, + { 0x6f9a, KEY_PLAY }, + { 0x9f9a, KEY_RECORD }, + { 0xaf9a, KEY_F17 }, /* picture in picture */ + { 0x5fa5, KEY_KPPLUS }, /* zoom in */ + { 0x6fa5, KEY_KPMINUS }, /* zoom out */ + { 0x9fa5, KEY_F18 }, /* capture */ + { 0xafa5, KEY_F19 }, /* web */ + { 0x5fa6, KEY_EMAIL }, + { 0x6fa6, KEY_PHONE }, + { 0x9fa6, KEY_PC }, +}; + +static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state) +{ + struct rc_map_table *entry; + int ret, i; + u8 key[4]; + u8 b[4] = { 0 }; + + *event = 0; + *state = REMOTE_NO_KEY_PRESSED; + + ret = digitv_ctrl_msg(d, USB_READ_REMOTE, 0, NULL, 0, key, 4); + if (ret) + return ret; + + /* Tell the device we've read the remote. Not sure how necessary + this is, but the Nebula SDK does it. */ + ret = digitv_ctrl_msg(d, USB_WRITE_REMOTE, 0, b, 4, NULL, 0); + if (ret) + return ret; + + /* if something is inside the buffer, simulate key press */ + if (key[0] != 0) { + for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) { + entry = &d->props.rc.legacy.rc_map_table[i]; + + if (rc5_custom(entry) == key[0] && + rc5_data(entry) == key[1]) { + *event = entry->keycode; + *state = REMOTE_KEY_PRESSED; + return 0; + } + } + + deb_rc("key: %*ph\n", 4, key); + } + + return 0; +} + +/* DVB USB Driver stuff */ +static struct dvb_usb_device_properties digitv_properties; + +static int digitv_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct dvb_usb_device *d; + int ret = dvb_usb_device_init(intf, &digitv_properties, THIS_MODULE, &d, + adapter_nr); + if (ret == 0) { + u8 b[4] = { 0 }; + + if (d != NULL) { /* do that only when the firmware is loaded */ + b[0] = 1; + digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0); + + b[0] = 0; + digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); + } + } + return ret; +} + +enum { + ANCHOR_NEBULA_DIGITV, +}; + +static struct usb_device_id digitv_table[] = { + DVB_USB_DEV(ANCHOR, ANCHOR_NEBULA_DIGITV), + { } +}; + +MODULE_DEVICE_TABLE (usb, digitv_table); + +static struct dvb_usb_device_properties digitv_properties = { + .caps = DVB_USB_IS_AN_I2C_ADAPTER, + + .usb_ctrl = CYPRESS_FX2, + .firmware = "dvb-usb-digitv-02.fw", + + .size_of_priv = sizeof(struct digitv_state), + + .num_adapters = 1, + .adapter = { + { + .num_frontends = 1, + .fe = {{ + .frontend_attach = digitv_frontend_attach, + .tuner_attach = digitv_tuner_attach, + + /* parameter for the MPEG2-data transfer */ + .stream = { + .type = USB_BULK, + .count = 7, + .endpoint = 0x02, + .u = { + .bulk = { + .buffersize = 4096, + } + } + }, + }}, + } + }, + .identify_state = digitv_identify_state, + + .rc.legacy = { + .rc_interval = 1000, + .rc_map_table = rc_map_digitv_table, + .rc_map_size = ARRAY_SIZE(rc_map_digitv_table), + .rc_query = digitv_rc_query, + }, + + .i2c_algo = &digitv_i2c_algo, + + .generic_bulk_ctrl_endpoint = 0x01, + + .num_device_descs = 1, + .devices = { + { "Nebula Electronics uDigiTV DVB-T USB2.0)", + { &digitv_table[ANCHOR_NEBULA_DIGITV], NULL }, + { NULL }, + }, + { NULL }, + } +}; + +static struct usb_driver digitv_driver = { + .name = "dvb_usb_digitv", + .probe = digitv_probe, + .disconnect = dvb_usb_device_exit, + .id_table = digitv_table, +}; + +module_usb_driver(digitv_driver); + +MODULE_AUTHOR("Patrick Boettcher "); +MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0"); +MODULE_VERSION("1.0-alpha"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3