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/pvrusb2/pvrusb2-std.c | 385 ++++++++++++++++++++++++++++++++ 1 file changed, 385 insertions(+) create mode 100644 drivers/media/usb/pvrusb2/pvrusb2-std.c (limited to 'drivers/media/usb/pvrusb2/pvrusb2-std.c') diff --git a/drivers/media/usb/pvrusb2/pvrusb2-std.c b/drivers/media/usb/pvrusb2/pvrusb2-std.c new file mode 100644 index 000000000..e7ab41401 --- /dev/null +++ b/drivers/media/usb/pvrusb2/pvrusb2-std.c @@ -0,0 +1,385 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * + * Copyright (C) 2005 Mike Isely + */ + +#include "pvrusb2-std.h" +#include "pvrusb2-debug.h" +#include +#include + +struct std_name { + const char *name; + v4l2_std_id id; +}; + + +#define CSTD_PAL \ + (V4L2_STD_PAL_B| \ + V4L2_STD_PAL_B1| \ + V4L2_STD_PAL_G| \ + V4L2_STD_PAL_H| \ + V4L2_STD_PAL_I| \ + V4L2_STD_PAL_D| \ + V4L2_STD_PAL_D1| \ + V4L2_STD_PAL_K| \ + V4L2_STD_PAL_M| \ + V4L2_STD_PAL_N| \ + V4L2_STD_PAL_Nc| \ + V4L2_STD_PAL_60) + +#define CSTD_NTSC \ + (V4L2_STD_NTSC_M| \ + V4L2_STD_NTSC_M_JP| \ + V4L2_STD_NTSC_M_KR| \ + V4L2_STD_NTSC_443) + +#define CSTD_ATSC \ + (V4L2_STD_ATSC_8_VSB| \ + V4L2_STD_ATSC_16_VSB) + +#define CSTD_SECAM \ + (V4L2_STD_SECAM_B| \ + V4L2_STD_SECAM_D| \ + V4L2_STD_SECAM_G| \ + V4L2_STD_SECAM_H| \ + V4L2_STD_SECAM_K| \ + V4L2_STD_SECAM_K1| \ + V4L2_STD_SECAM_L| \ + V4L2_STD_SECAM_LC) + +#define TSTD_B (V4L2_STD_PAL_B|V4L2_STD_SECAM_B) +#define TSTD_B1 (V4L2_STD_PAL_B1) +#define TSTD_D (V4L2_STD_PAL_D|V4L2_STD_SECAM_D) +#define TSTD_D1 (V4L2_STD_PAL_D1) +#define TSTD_G (V4L2_STD_PAL_G|V4L2_STD_SECAM_G) +#define TSTD_H (V4L2_STD_PAL_H|V4L2_STD_SECAM_H) +#define TSTD_I (V4L2_STD_PAL_I) +#define TSTD_K (V4L2_STD_PAL_K|V4L2_STD_SECAM_K) +#define TSTD_K1 (V4L2_STD_SECAM_K1) +#define TSTD_L (V4L2_STD_SECAM_L) +#define TSTD_M (V4L2_STD_PAL_M|V4L2_STD_NTSC_M) +#define TSTD_N (V4L2_STD_PAL_N) +#define TSTD_Nc (V4L2_STD_PAL_Nc) +#define TSTD_60 (V4L2_STD_PAL_60) + +#define CSTD_ALL (CSTD_PAL|CSTD_NTSC|CSTD_ATSC|CSTD_SECAM) + +/* Mapping of standard bits to color system */ +static const struct std_name std_groups[] = { + {"PAL",CSTD_PAL}, + {"NTSC",CSTD_NTSC}, + {"SECAM",CSTD_SECAM}, + {"ATSC",CSTD_ATSC}, +}; + +/* Mapping of standard bits to modulation system */ +static const struct std_name std_items[] = { + {"B",TSTD_B}, + {"B1",TSTD_B1}, + {"D",TSTD_D}, + {"D1",TSTD_D1}, + {"G",TSTD_G}, + {"H",TSTD_H}, + {"I",TSTD_I}, + {"K",TSTD_K}, + {"K1",TSTD_K1}, + {"L",TSTD_L}, + {"LC",V4L2_STD_SECAM_LC}, + {"M",TSTD_M}, + {"Mj",V4L2_STD_NTSC_M_JP}, + {"443",V4L2_STD_NTSC_443}, + {"Mk",V4L2_STD_NTSC_M_KR}, + {"N",TSTD_N}, + {"Nc",TSTD_Nc}, + {"60",TSTD_60}, + {"8VSB",V4L2_STD_ATSC_8_VSB}, + {"16VSB",V4L2_STD_ATSC_16_VSB}, +}; + + +// Search an array of std_name structures and return a pointer to the +// element with the matching name. +static const struct std_name *find_std_name(const struct std_name *arrPtr, + unsigned int arrSize, + const char *bufPtr, + unsigned int bufSize) +{ + unsigned int idx; + const struct std_name *p; + for (idx = 0; idx < arrSize; idx++) { + p = arrPtr + idx; + if (strlen(p->name) != bufSize) continue; + if (!memcmp(bufPtr,p->name,bufSize)) return p; + } + return NULL; +} + + +int pvr2_std_str_to_id(v4l2_std_id *idPtr,const char *bufPtr, + unsigned int bufSize) +{ + v4l2_std_id id = 0; + v4l2_std_id cmsk = 0; + v4l2_std_id t; + int mMode = 0; + unsigned int cnt; + char ch; + const struct std_name *sp; + + while (bufSize) { + if (!mMode) { + cnt = 0; + while ((cnt < bufSize) && (bufPtr[cnt] != '-')) cnt++; + if (cnt >= bufSize) return 0; // No more characters + sp = find_std_name(std_groups, ARRAY_SIZE(std_groups), + bufPtr,cnt); + if (!sp) return 0; // Illegal color system name + cnt++; + bufPtr += cnt; + bufSize -= cnt; + mMode = !0; + cmsk = sp->id; + continue; + } + cnt = 0; + while (cnt < bufSize) { + ch = bufPtr[cnt]; + if (ch == ';') { + mMode = 0; + break; + } + if (ch == '/') break; + cnt++; + } + sp = find_std_name(std_items, ARRAY_SIZE(std_items), + bufPtr,cnt); + if (!sp) return 0; // Illegal modulation system ID + t = sp->id & cmsk; + if (!t) return 0; // Specific color + modulation system illegal + id |= t; + if (cnt < bufSize) cnt++; + bufPtr += cnt; + bufSize -= cnt; + } + + if (idPtr) *idPtr = id; + return !0; +} + + +unsigned int pvr2_std_id_to_str(char *bufPtr, unsigned int bufSize, + v4l2_std_id id) +{ + unsigned int idx1,idx2; + const struct std_name *ip,*gp; + int gfl,cfl; + unsigned int c1,c2; + cfl = 0; + c1 = 0; + for (idx1 = 0; idx1 < ARRAY_SIZE(std_groups); idx1++) { + gp = std_groups + idx1; + gfl = 0; + for (idx2 = 0; idx2 < ARRAY_SIZE(std_items); idx2++) { + ip = std_items + idx2; + if (!(gp->id & ip->id & id)) continue; + if (!gfl) { + if (cfl) { + c2 = scnprintf(bufPtr,bufSize,";"); + c1 += c2; + bufSize -= c2; + bufPtr += c2; + } + cfl = !0; + c2 = scnprintf(bufPtr,bufSize, + "%s-",gp->name); + gfl = !0; + } else { + c2 = scnprintf(bufPtr,bufSize,"/"); + } + c1 += c2; + bufSize -= c2; + bufPtr += c2; + c2 = scnprintf(bufPtr,bufSize, + ip->name); + c1 += c2; + bufSize -= c2; + bufPtr += c2; + } + } + return c1; +} + + +// Template data for possible enumerated video standards. Here we group +// standards which share common frame rates and resolution. +static struct v4l2_standard generic_standards[] = { + { + .id = (TSTD_B|TSTD_B1| + TSTD_D|TSTD_D1| + TSTD_G| + TSTD_H| + TSTD_I| + TSTD_K|TSTD_K1| + TSTD_L| + V4L2_STD_SECAM_LC | + TSTD_N|TSTD_Nc), + .frameperiod = + { + .numerator = 1, + .denominator= 25 + }, + .framelines = 625, + .reserved = {0,0,0,0} + }, { + .id = (TSTD_M| + V4L2_STD_NTSC_M_JP| + V4L2_STD_NTSC_M_KR), + .frameperiod = + { + .numerator = 1001, + .denominator= 30000 + }, + .framelines = 525, + .reserved = {0,0,0,0} + }, { // This is a total wild guess + .id = (TSTD_60), + .frameperiod = + { + .numerator = 1001, + .denominator= 30000 + }, + .framelines = 525, + .reserved = {0,0,0,0} + }, { // This is total wild guess + .id = V4L2_STD_NTSC_443, + .frameperiod = + { + .numerator = 1001, + .denominator= 30000 + }, + .framelines = 525, + .reserved = {0,0,0,0} + } +}; + +static struct v4l2_standard *match_std(v4l2_std_id id) +{ + unsigned int idx; + for (idx = 0; idx < ARRAY_SIZE(generic_standards); idx++) { + if (generic_standards[idx].id & id) { + return generic_standards + idx; + } + } + return NULL; +} + +static int pvr2_std_fill(struct v4l2_standard *std,v4l2_std_id id) +{ + struct v4l2_standard *template; + int idx; + unsigned int bcnt; + template = match_std(id); + if (!template) return 0; + idx = std->index; + memcpy(std,template,sizeof(*template)); + std->index = idx; + std->id = id; + bcnt = pvr2_std_id_to_str(std->name,sizeof(std->name)-1,id); + std->name[bcnt] = 0; + pvr2_trace(PVR2_TRACE_STD,"Set up standard idx=%u name=%s", + std->index,std->name); + return !0; +} + +/* These are special cases of combined standards that we should enumerate + separately if the component pieces are present. */ +static v4l2_std_id std_mixes[] = { + V4L2_STD_PAL_B | V4L2_STD_PAL_G, + V4L2_STD_PAL_D | V4L2_STD_PAL_K, + V4L2_STD_SECAM_B | V4L2_STD_SECAM_G, + V4L2_STD_SECAM_D | V4L2_STD_SECAM_K, +}; + +struct v4l2_standard *pvr2_std_create_enum(unsigned int *countptr, + v4l2_std_id id) +{ + unsigned int std_cnt = 0; + unsigned int idx,bcnt,idx2; + v4l2_std_id idmsk,cmsk,fmsk; + struct v4l2_standard *stddefs; + + if (pvrusb2_debug & PVR2_TRACE_STD) { + char buf[100]; + bcnt = pvr2_std_id_to_str(buf,sizeof(buf),id); + pvr2_trace( + PVR2_TRACE_STD,"Mapping standards mask=0x%x (%.*s)", + (int)id,bcnt,buf); + } + + *countptr = 0; + std_cnt = 0; + fmsk = 0; + for (idmsk = 1, cmsk = id; cmsk; idmsk <<= 1) { + if (!(idmsk & cmsk)) continue; + cmsk &= ~idmsk; + if (match_std(idmsk)) { + std_cnt++; + continue; + } + fmsk |= idmsk; + } + + for (idx2 = 0; idx2 < ARRAY_SIZE(std_mixes); idx2++) { + if ((id & std_mixes[idx2]) == std_mixes[idx2]) std_cnt++; + } + + /* Don't complain about ATSC standard values */ + fmsk &= ~CSTD_ATSC; + + if (fmsk) { + char buf[100]; + bcnt = pvr2_std_id_to_str(buf,sizeof(buf),fmsk); + pvr2_trace( + PVR2_TRACE_ERROR_LEGS, + "***WARNING*** Failed to classify the following standard(s): %.*s", + bcnt,buf); + } + + pvr2_trace(PVR2_TRACE_STD,"Setting up %u unique standard(s)", + std_cnt); + if (!std_cnt) return NULL; // paranoia + + stddefs = kcalloc(std_cnt, sizeof(struct v4l2_standard), + GFP_KERNEL); + if (!stddefs) + return NULL; + + for (idx = 0; idx < std_cnt; idx++) + stddefs[idx].index = idx; + + idx = 0; + + /* Enumerate potential special cases */ + for (idx2 = 0; (idx2 < ARRAY_SIZE(std_mixes)) && (idx < std_cnt); + idx2++) { + if (!(id & std_mixes[idx2])) continue; + if (pvr2_std_fill(stddefs+idx,std_mixes[idx2])) idx++; + } + /* Now enumerate individual pieces */ + for (idmsk = 1, cmsk = id; cmsk && (idx < std_cnt); idmsk <<= 1) { + if (!(idmsk & cmsk)) continue; + cmsk &= ~idmsk; + if (!pvr2_std_fill(stddefs+idx,idmsk)) continue; + idx++; + } + + *countptr = std_cnt; + return stddefs; +} + +v4l2_std_id pvr2_std_get_usable(void) +{ + return CSTD_ALL; +} -- cgit v1.2.3