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/dvb-frontends/zl10039.c | 304 ++++++++++++++++++++++++++++++++++ 1 file changed, 304 insertions(+) create mode 100644 drivers/media/dvb-frontends/zl10039.c (limited to 'drivers/media/dvb-frontends/zl10039.c') diff --git a/drivers/media/dvb-frontends/zl10039.c b/drivers/media/dvb-frontends/zl10039.c new file mode 100644 index 000000000..1335bf78d --- /dev/null +++ b/drivers/media/dvb-frontends/zl10039.c @@ -0,0 +1,304 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Zarlink ZL10039 DVB-S tuner + * + * Copyright 2007 Jan D. Louw + */ + +#include +#include +#include +#include +#include + +#include +#include "zl10039.h" + +static int debug; + +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + +#define dprintk(args...) \ + do { \ + if (debug) \ + printk(KERN_DEBUG args); \ + } while (0) + +enum zl10039_model_id { + ID_ZL10039 = 1 +}; + +struct zl10039_state { + struct i2c_adapter *i2c; + u8 i2c_addr; + u8 id; +}; + +enum zl10039_reg_addr { + PLL0 = 0, + PLL1, + PLL2, + PLL3, + RFFE, + BASE0, + BASE1, + BASE2, + LO0, + LO1, + LO2, + LO3, + LO4, + LO5, + LO6, + GENERAL +}; + +static int zl10039_read(const struct zl10039_state *state, + const enum zl10039_reg_addr reg, u8 *buf, + const size_t count) +{ + u8 regbuf[] = { reg }; + struct i2c_msg msg[] = { + {/* Write register address */ + .addr = state->i2c_addr, + .flags = 0, + .buf = regbuf, + .len = 1, + }, {/* Read count bytes */ + .addr = state->i2c_addr, + .flags = I2C_M_RD, + .buf = buf, + .len = count, + }, + }; + + dprintk("%s\n", __func__); + + if (i2c_transfer(state->i2c, msg, 2) != 2) { + dprintk("%s: i2c read error\n", __func__); + return -EREMOTEIO; + } + + return 0; /* Success */ +} + +static int zl10039_write(struct zl10039_state *state, + const enum zl10039_reg_addr reg, const u8 *src, + const size_t count) +{ + u8 buf[MAX_XFER_SIZE]; + struct i2c_msg msg = { + .addr = state->i2c_addr, + .flags = 0, + .buf = buf, + .len = count + 1, + }; + + if (1 + count > sizeof(buf)) { + printk(KERN_WARNING + "%s: i2c wr reg=%04x: len=%zu is too big!\n", + KBUILD_MODNAME, reg, count); + return -EINVAL; + } + + dprintk("%s\n", __func__); + /* Write register address and data in one go */ + buf[0] = reg; + memcpy(&buf[1], src, count); + if (i2c_transfer(state->i2c, &msg, 1) != 1) { + dprintk("%s: i2c write error\n", __func__); + return -EREMOTEIO; + } + + return 0; /* Success */ +} + +static inline int zl10039_readreg(struct zl10039_state *state, + const enum zl10039_reg_addr reg, u8 *val) +{ + return zl10039_read(state, reg, val, 1); +} + +static inline int zl10039_writereg(struct zl10039_state *state, + const enum zl10039_reg_addr reg, + const u8 val) +{ + const u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */ + + return zl10039_write(state, reg, &tmp, 1); +} + +static int zl10039_init(struct dvb_frontend *fe) +{ + struct zl10039_state *state = fe->tuner_priv; + int ret; + + dprintk("%s\n", __func__); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + /* Reset logic */ + ret = zl10039_writereg(state, GENERAL, 0x40); + if (ret < 0) { + dprintk("Note: i2c write error normal when resetting the tuner\n"); + } + /* Wake up */ + ret = zl10039_writereg(state, GENERAL, 0x01); + if (ret < 0) { + dprintk("Tuner power up failed\n"); + return ret; + } + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + + return 0; +} + +static int zl10039_sleep(struct dvb_frontend *fe) +{ + struct zl10039_state *state = fe->tuner_priv; + int ret; + + dprintk("%s\n", __func__); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + ret = zl10039_writereg(state, GENERAL, 0x80); + if (ret < 0) { + dprintk("Tuner sleep failed\n"); + return ret; + } + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + + return 0; +} + +static int zl10039_set_params(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct zl10039_state *state = fe->tuner_priv; + u8 buf[6]; + u8 bf; + u32 fbw; + u32 div; + int ret; + + dprintk("%s\n", __func__); + dprintk("Set frequency = %d, symbol rate = %d\n", + c->frequency, c->symbol_rate); + + /* Assumed 10.111 MHz crystal oscillator */ + /* Cancelled num/den 80 to prevent overflow */ + div = (c->frequency * 1000) / 126387; + fbw = (c->symbol_rate * 27) / 32000; + /* Cancelled num/den 10 to prevent overflow */ + bf = ((fbw * 5088) / 1011100) - 1; + + /*PLL divider*/ + buf[0] = (div >> 8) & 0x7f; + buf[1] = (div >> 0) & 0xff; + /*Reference divider*/ + /* Select reference ratio of 80 */ + buf[2] = 0x1D; + /*PLL test modes*/ + buf[3] = 0x40; + /*RF Control register*/ + buf[4] = 0x6E; /* Bypass enable */ + /*Baseband filter cutoff */ + buf[5] = bf; + + /* Open i2c gate */ + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + /* BR = 10, Enable filter adjustment */ + ret = zl10039_writereg(state, BASE1, 0x0A); + if (ret < 0) + goto error; + /* Write new config values */ + ret = zl10039_write(state, PLL0, buf, sizeof(buf)); + if (ret < 0) + goto error; + /* BR = 10, Disable filter adjustment */ + ret = zl10039_writereg(state, BASE1, 0x6A); + if (ret < 0) + goto error; + + /* Close i2c gate */ + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + return 0; +error: + dprintk("Error setting tuner\n"); + return ret; +} + +static void zl10039_release(struct dvb_frontend *fe) +{ + struct zl10039_state *state = fe->tuner_priv; + + dprintk("%s\n", __func__); + kfree(state); + fe->tuner_priv = NULL; +} + +static const struct dvb_tuner_ops zl10039_ops = { + .release = zl10039_release, + .init = zl10039_init, + .sleep = zl10039_sleep, + .set_params = zl10039_set_params, +}; + +struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe, + u8 i2c_addr, struct i2c_adapter *i2c) +{ + struct zl10039_state *state = NULL; + + dprintk("%s\n", __func__); + state = kmalloc(sizeof(struct zl10039_state), GFP_KERNEL); + if (state == NULL) + goto error; + + state->i2c = i2c; + state->i2c_addr = i2c_addr; + + /* Open i2c gate */ + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + /* check if this is a valid tuner */ + if (zl10039_readreg(state, GENERAL, &state->id) < 0) { + /* Close i2c gate */ + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + goto error; + } + /* Close i2c gate */ + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + + state->id = state->id & 0x0f; + switch (state->id) { + case ID_ZL10039: + strscpy(fe->ops.tuner_ops.info.name, + "Zarlink ZL10039 DVB-S tuner", + sizeof(fe->ops.tuner_ops.info.name)); + break; + default: + dprintk("Chip ID=%x does not match a known type\n", state->id); + goto error; + } + + memcpy(&fe->ops.tuner_ops, &zl10039_ops, sizeof(struct dvb_tuner_ops)); + fe->tuner_priv = state; + dprintk("Tuner attached @ i2c address 0x%02x\n", i2c_addr); + return fe; +error: + kfree(state); + return NULL; +} +EXPORT_SYMBOL(zl10039_attach); + +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); +MODULE_DESCRIPTION("Zarlink ZL10039 DVB-S tuner driver"); +MODULE_AUTHOR("Jan D. Louw "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3