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/ix2505v.c | 311 ++++++++++++++++++++++++++++++++++ 1 file changed, 311 insertions(+) create mode 100644 drivers/media/dvb-frontends/ix2505v.c (limited to 'drivers/media/dvb-frontends/ix2505v.c') diff --git a/drivers/media/dvb-frontends/ix2505v.c b/drivers/media/dvb-frontends/ix2505v.c new file mode 100644 index 000000000..73f27105c --- /dev/null +++ b/drivers/media/dvb-frontends/ix2505v.c @@ -0,0 +1,311 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner + * + * Copyright (C) 2010 Malcolm Priestley + */ + +#include +#include +#include +#include + +#include "ix2505v.h" + +static int ix2505v_debug; +#define dprintk(level, args...) do { \ + if (ix2505v_debug & level) \ + printk(KERN_DEBUG "ix2505v: " args); \ +} while (0) + +#define deb_info(args...) dprintk(0x01, args) +#define deb_i2c(args...) dprintk(0x02, args) + +struct ix2505v_state { + struct i2c_adapter *i2c; + const struct ix2505v_config *config; + u32 frequency; +}; + +/* + * Data read format of the Sharp IX2505V B0017 + * + * byte1: 1 | 1 | 0 | 0 | 0 | MA1 | MA0 | 1 + * byte2: POR | FL | RD2 | RD1 | RD0 | X | X | X + * + * byte1 = address + * byte2; + * POR = Power on Reset (VCC H=<2.2v L=>2.2v) + * FL = Phase Lock (H=lock L=unlock) + * RD0-2 = Reserved internal operations + * + * Only POR can be used to check the tuner is present + * + * Caution: after byte2 the I2C reverts to write mode continuing to read + * may corrupt tuning data. + * + */ + +static int ix2505v_read_status_reg(struct ix2505v_state *state) +{ + u8 addr = state->config->tuner_address; + u8 b2[] = {0}; + int ret; + + struct i2c_msg msg[1] = { + { .addr = addr, .flags = I2C_M_RD, .buf = b2, .len = 1 } + }; + + ret = i2c_transfer(state->i2c, msg, 1); + deb_i2c("Read %s ", __func__); + + return (ret == 1) ? (int) b2[0] : -1; +} + +static int ix2505v_write(struct ix2505v_state *state, u8 buf[], u8 count) +{ + struct i2c_msg msg[1] = { + { .addr = state->config->tuner_address, .flags = 0, + .buf = buf, .len = count }, + }; + + int ret; + + ret = i2c_transfer(state->i2c, msg, 1); + + if (ret != 1) { + deb_i2c("%s: i2c error, ret=%d\n", __func__, ret); + return -EIO; + } + + return 0; +} + +static void ix2505v_release(struct dvb_frontend *fe) +{ + struct ix2505v_state *state = fe->tuner_priv; + + fe->tuner_priv = NULL; + kfree(state); + +} + +/* + * Data write format of the Sharp IX2505V B0017 + * + * byte1: 1 | 1 | 0 | 0 | 0 | 0(MA1)| 0(MA0)| 0 + * byte2: 0 | BG1 | BG2 | N8 | N7 | N6 | N5 | N4 + * byte3: N3 | N2 | N1 | A5 | A4 | A3 | A2 | A1 + * byte4: 1 | 1(C1) | 1(C0) | PD5 | PD4 | TM | 0(RTS)| 1(REF) + * byte5: BA2 | BA1 | BA0 | PSC | PD3 |PD2/TS2|DIV/TS1|PD0/TS0 + * + * byte1 = address + * + * Write order + * 1) byte1 -> byte2 -> byte3 -> byte4 -> byte5 + * 2) byte1 -> byte4 -> byte5 -> byte2 -> byte3 + * 3) byte1 -> byte2 -> byte3 -> byte4 + * 4) byte1 -> byte4 -> byte5 -> byte2 + * 5) byte1 -> byte2 -> byte3 + * 6) byte1 -> byte4 -> byte5 + * 7) byte1 -> byte2 + * 8) byte1 -> byte4 + * + * Recommended Setup + * 1 -> 8 -> 6 + */ + +static int ix2505v_set_params(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct ix2505v_state *state = fe->tuner_priv; + u32 frequency = c->frequency; + u32 b_w = (c->symbol_rate * 27) / 32000; + u32 div_factor, N , A, x; + int ret = 0, len; + u8 gain, cc, ref, psc, local_osc, lpf; + u8 data[4] = {0}; + + if ((frequency < fe->ops.info.frequency_min_hz / kHz) + || (frequency > fe->ops.info.frequency_max_hz / kHz)) + return -EINVAL; + + if (state->config->tuner_gain) + gain = (state->config->tuner_gain < 4) + ? state->config->tuner_gain : 0; + else + gain = 0x0; + + if (state->config->tuner_chargepump) + cc = state->config->tuner_chargepump; + else + cc = 0x3; + + ref = 8; /* REF =1 */ + psc = 32; /* PSC = 0 */ + + div_factor = (frequency * ref) / 40; /* local osc = 4Mhz */ + x = div_factor / psc; + N = x/100; + A = ((x - (N * 100)) * psc) / 100; + + data[0] = ((gain & 0x3) << 5) | (N >> 3); + data[1] = (N << 5) | (A & 0x1f); + data[2] = 0x81 | ((cc & 0x3) << 5) ; /*PD5,PD4 & TM = 0|C1,C0|REF=1*/ + + deb_info("Frq=%d x=%d N=%d A=%d\n", frequency, x, N, A); + + if (frequency <= 1065000) + local_osc = (6 << 5) | 2; + else if (frequency <= 1170000) + local_osc = (7 << 5) | 2; + else if (frequency <= 1300000) + local_osc = (1 << 5); + else if (frequency <= 1445000) + local_osc = (2 << 5); + else if (frequency <= 1607000) + local_osc = (3 << 5); + else if (frequency <= 1778000) + local_osc = (4 << 5); + else if (frequency <= 1942000) + local_osc = (5 << 5); + else /*frequency up to 2150000*/ + local_osc = (6 << 5); + + data[3] = local_osc; /* all other bits set 0 */ + + if (b_w <= 10000) + lpf = 0xc; + else if (b_w <= 12000) + lpf = 0x2; + else if (b_w <= 14000) + lpf = 0xa; + else if (b_w <= 16000) + lpf = 0x6; + else if (b_w <= 18000) + lpf = 0xe; + else if (b_w <= 20000) + lpf = 0x1; + else if (b_w <= 22000) + lpf = 0x9; + else if (b_w <= 24000) + lpf = 0x5; + else if (b_w <= 26000) + lpf = 0xd; + else if (b_w <= 28000) + lpf = 0x3; + else + lpf = 0xb; + + deb_info("Osc=%x b_w=%x lpf=%x\n", local_osc, b_w, lpf); + deb_info("Data 0=[%4phN]\n", data); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + len = sizeof(data); + ret |= ix2505v_write(state, data, len); + + data[2] |= 0x4; /* set TM = 1 other bits same */ + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + len = 1; + ret |= ix2505v_write(state, &data[2], len); /* write byte 4 only */ + + msleep(10); + + data[2] |= ((lpf >> 2) & 0x3) << 3; /* lpf */ + data[3] |= (lpf & 0x3) << 2; + + deb_info("Data 2=[%x%x]\n", data[2], data[3]); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + len = 2; + ret |= ix2505v_write(state, &data[2], len); /* write byte 4 & 5 */ + + if (state->config->min_delay_ms) + msleep(state->config->min_delay_ms); + + state->frequency = frequency; + + return ret; +} + +static int ix2505v_get_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + struct ix2505v_state *state = fe->tuner_priv; + + *frequency = state->frequency; + + return 0; +} + +static const struct dvb_tuner_ops ix2505v_tuner_ops = { + .info = { + .name = "Sharp IX2505V (B0017)", + .frequency_min_hz = 950 * MHz, + .frequency_max_hz = 2175 * MHz + }, + .release = ix2505v_release, + .set_params = ix2505v_set_params, + .get_frequency = ix2505v_get_frequency, +}; + +struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, + const struct ix2505v_config *config, + struct i2c_adapter *i2c) +{ + struct ix2505v_state *state = NULL; + int ret; + + if (NULL == config) { + deb_i2c("%s: no config ", __func__); + goto error; + } + + state = kzalloc(sizeof(struct ix2505v_state), GFP_KERNEL); + if (NULL == state) + return NULL; + + state->config = config; + state->i2c = i2c; + + if (state->config->tuner_write_only) { + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + ret = ix2505v_read_status_reg(state); + + if (ret & 0x80) { + deb_i2c("%s: No IX2505V found\n", __func__); + goto error; + } + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + } + + fe->tuner_priv = state; + + memcpy(&fe->ops.tuner_ops, &ix2505v_tuner_ops, + sizeof(struct dvb_tuner_ops)); + deb_i2c("%s: initialization (%s addr=0x%02x) ok\n", + __func__, fe->ops.tuner_ops.info.name, config->tuner_address); + + return fe; + +error: + kfree(state); + return NULL; +} +EXPORT_SYMBOL(ix2505v_attach); + +module_param_named(debug, ix2505v_debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); +MODULE_DESCRIPTION("DVB IX2505V tuner driver"); +MODULE_AUTHOR("Malcolm Priestley"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3