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/horus3a.c | 402 ++++++++++++++++++++++++++++++++++ 1 file changed, 402 insertions(+) create mode 100644 drivers/media/dvb-frontends/horus3a.c (limited to 'drivers/media/dvb-frontends/horus3a.c') diff --git a/drivers/media/dvb-frontends/horus3a.c b/drivers/media/dvb-frontends/horus3a.c new file mode 100644 index 000000000..24bf5cbcc --- /dev/null +++ b/drivers/media/dvb-frontends/horus3a.c @@ -0,0 +1,402 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * horus3a.h + * + * Sony Horus3A DVB-S/S2 tuner driver + * + * Copyright 2012 Sony Corporation + * Copyright (C) 2014 NetUP Inc. + * Copyright (C) 2014 Sergey Kozlov + * Copyright (C) 2014 Abylay Ospan + */ + +#include +#include +#include +#include +#include "horus3a.h" +#include + +#define MAX_WRITE_REGSIZE 5 + +enum horus3a_state { + STATE_UNKNOWN, + STATE_SLEEP, + STATE_ACTIVE +}; + +struct horus3a_priv { + u32 frequency; + u8 i2c_address; + struct i2c_adapter *i2c; + enum horus3a_state state; + void *set_tuner_data; + int (*set_tuner)(void *, int); +}; + +static void horus3a_i2c_debug(struct horus3a_priv *priv, + u8 reg, u8 write, const u8 *data, u32 len) +{ + dev_dbg(&priv->i2c->dev, "horus3a: I2C %s reg 0x%02x size %d\n", + (write == 0 ? "read" : "write"), reg, len); + print_hex_dump_bytes("horus3a: I2C data: ", + DUMP_PREFIX_OFFSET, data, len); +} + +static int horus3a_write_regs(struct horus3a_priv *priv, + u8 reg, const u8 *data, u32 len) +{ + int ret; + u8 buf[MAX_WRITE_REGSIZE + 1]; + struct i2c_msg msg[1] = { + { + .addr = priv->i2c_address, + .flags = 0, + .len = len + 1, + .buf = buf, + } + }; + + if (len + 1 > sizeof(buf)) { + dev_warn(&priv->i2c->dev,"wr reg=%04x: len=%d is too big!\n", + reg, len + 1); + return -E2BIG; + } + + horus3a_i2c_debug(priv, reg, 1, data, len); + buf[0] = reg; + memcpy(&buf[1], data, len); + ret = i2c_transfer(priv->i2c, msg, 1); + if (ret >= 0 && ret != 1) + ret = -EREMOTEIO; + if (ret < 0) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr failed=%d reg=%02x len=%d\n", + KBUILD_MODNAME, ret, reg, len); + return ret; + } + return 0; +} + +static int horus3a_write_reg(struct horus3a_priv *priv, u8 reg, u8 val) +{ + u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */ + + return horus3a_write_regs(priv, reg, &tmp, 1); +} + +static int horus3a_enter_power_save(struct horus3a_priv *priv) +{ + u8 data[2]; + + dev_dbg(&priv->i2c->dev, "%s()\n", __func__); + if (priv->state == STATE_SLEEP) + return 0; + /* IQ Generator disable */ + horus3a_write_reg(priv, 0x2a, 0x79); + /* MDIV_EN = 0 */ + horus3a_write_reg(priv, 0x29, 0x70); + /* VCO disable preparation */ + horus3a_write_reg(priv, 0x28, 0x3e); + /* VCO buffer disable */ + horus3a_write_reg(priv, 0x2a, 0x19); + /* VCO calibration disable */ + horus3a_write_reg(priv, 0x1c, 0x00); + /* Power save setting (xtal is not stopped) */ + data[0] = 0xC0; + /* LNA is Disabled */ + data[1] = 0xA7; + /* 0x11 - 0x12 */ + horus3a_write_regs(priv, 0x11, data, sizeof(data)); + priv->state = STATE_SLEEP; + return 0; +} + +static int horus3a_leave_power_save(struct horus3a_priv *priv) +{ + u8 data[2]; + + dev_dbg(&priv->i2c->dev, "%s()\n", __func__); + if (priv->state == STATE_ACTIVE) + return 0; + /* Leave power save */ + data[0] = 0x00; + /* LNA is Disabled */ + data[1] = 0xa7; + /* 0x11 - 0x12 */ + horus3a_write_regs(priv, 0x11, data, sizeof(data)); + /* VCO buffer enable */ + horus3a_write_reg(priv, 0x2a, 0x79); + /* VCO calibration enable */ + horus3a_write_reg(priv, 0x1c, 0xc0); + /* MDIV_EN = 1 */ + horus3a_write_reg(priv, 0x29, 0x71); + usleep_range(5000, 7000); + priv->state = STATE_ACTIVE; + return 0; +} + +static int horus3a_init(struct dvb_frontend *fe) +{ + struct horus3a_priv *priv = fe->tuner_priv; + + dev_dbg(&priv->i2c->dev, "%s()\n", __func__); + return 0; +} + +static void horus3a_release(struct dvb_frontend *fe) +{ + struct horus3a_priv *priv = fe->tuner_priv; + + dev_dbg(&priv->i2c->dev, "%s()\n", __func__); + kfree(fe->tuner_priv); + fe->tuner_priv = NULL; +} + +static int horus3a_sleep(struct dvb_frontend *fe) +{ + struct horus3a_priv *priv = fe->tuner_priv; + + dev_dbg(&priv->i2c->dev, "%s()\n", __func__); + horus3a_enter_power_save(priv); + return 0; +} + +static int horus3a_set_params(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *p = &fe->dtv_property_cache; + struct horus3a_priv *priv = fe->tuner_priv; + u32 frequency = p->frequency; + u32 symbol_rate = p->symbol_rate/1000; + u8 mixdiv = 0; + u8 mdiv = 0; + u32 ms = 0; + u8 f_ctl = 0; + u8 g_ctl = 0; + u8 fc_lpf = 0; + u8 data[5]; + + dev_dbg(&priv->i2c->dev, "%s(): frequency %dkHz symbol_rate %dksps\n", + __func__, frequency, symbol_rate); + if (priv->set_tuner) + priv->set_tuner(priv->set_tuner_data, 0); + if (priv->state == STATE_SLEEP) + horus3a_leave_power_save(priv); + + /* frequency should be X MHz (X : integer) */ + frequency = DIV_ROUND_CLOSEST(frequency, 1000) * 1000; + if (frequency <= 1155000) { + mixdiv = 4; + mdiv = 1; + } else { + mixdiv = 2; + mdiv = 0; + } + /* Assumed that fREF == 1MHz (1000kHz) */ + ms = DIV_ROUND_CLOSEST((frequency * mixdiv) / 2, 1000); + if (ms > 0x7FFF) { /* 15 bit */ + dev_err(&priv->i2c->dev, "horus3a: invalid frequency %d\n", + frequency); + return -EINVAL; + } + if (frequency < 975000) { + /* F_CTL=11100 G_CTL=001 */ + f_ctl = 0x1C; + g_ctl = 0x01; + } else if (frequency < 1050000) { + /* F_CTL=11000 G_CTL=010 */ + f_ctl = 0x18; + g_ctl = 0x02; + } else if (frequency < 1150000) { + /* F_CTL=10100 G_CTL=010 */ + f_ctl = 0x14; + g_ctl = 0x02; + } else if (frequency < 1250000) { + /* F_CTL=10000 G_CTL=011 */ + f_ctl = 0x10; + g_ctl = 0x03; + } else if (frequency < 1350000) { + /* F_CTL=01100 G_CTL=100 */ + f_ctl = 0x0C; + g_ctl = 0x04; + } else if (frequency < 1450000) { + /* F_CTL=01010 G_CTL=100 */ + f_ctl = 0x0A; + g_ctl = 0x04; + } else if (frequency < 1600000) { + /* F_CTL=00111 G_CTL=101 */ + f_ctl = 0x07; + g_ctl = 0x05; + } else if (frequency < 1800000) { + /* F_CTL=00100 G_CTL=010 */ + f_ctl = 0x04; + g_ctl = 0x02; + } else if (frequency < 2000000) { + /* F_CTL=00010 G_CTL=001 */ + f_ctl = 0x02; + g_ctl = 0x01; + } else { + /* F_CTL=00000 G_CTL=000 */ + f_ctl = 0x00; + g_ctl = 0x00; + } + /* LPF cutoff frequency setting */ + if (p->delivery_system == SYS_DVBS) { + /* + * rolloff = 0.35 + * SR <= 4.3 + * fc_lpf = 5 + * 4.3 < SR <= 10 + * fc_lpf = SR * (1 + rolloff) / 2 + SR / 2 = + * SR * 1.175 = SR * (47/40) + * 10 < SR + * fc_lpf = SR * (1 + rolloff) / 2 + 5 = + * SR * 0.675 + 5 = SR * (27/40) + 5 + * NOTE: The result should be round up. + */ + if (symbol_rate <= 4300) + fc_lpf = 5; + else if (symbol_rate <= 10000) + fc_lpf = (u8)DIV_ROUND_UP(symbol_rate * 47, 40000); + else + fc_lpf = (u8)DIV_ROUND_UP(symbol_rate * 27, 40000) + 5; + /* 5 <= fc_lpf <= 36 */ + if (fc_lpf > 36) + fc_lpf = 36; + } else if (p->delivery_system == SYS_DVBS2) { + /* + * SR <= 4.5: + * fc_lpf = 5 + * 4.5 < SR <= 10: + * fc_lpf = SR * (1 + rolloff) / 2 + SR / 2 + * 10 < SR: + * fc_lpf = SR * (1 + rolloff) / 2 + 5 + * NOTE: The result should be round up. + */ + if (symbol_rate <= 4500) + fc_lpf = 5; + else if (symbol_rate <= 10000) + fc_lpf = (u8)((symbol_rate * 11 + (10000-1)) / 10000); + else + fc_lpf = (u8)((symbol_rate * 3 + (5000-1)) / 5000 + 5); + /* 5 <= fc_lpf <= 36 is valid */ + if (fc_lpf > 36) + fc_lpf = 36; + } else { + dev_err(&priv->i2c->dev, + "horus3a: invalid delivery system %d\n", + p->delivery_system); + return -EINVAL; + } + /* 0x00 - 0x04 */ + data[0] = (u8)((ms >> 7) & 0xFF); + data[1] = (u8)((ms << 1) & 0xFF); + data[2] = 0x00; + data[3] = 0x00; + data[4] = (u8)(mdiv << 7); + horus3a_write_regs(priv, 0x00, data, sizeof(data)); + /* Write G_CTL, F_CTL */ + horus3a_write_reg(priv, 0x09, (u8)((g_ctl << 5) | f_ctl)); + /* Write LPF cutoff frequency */ + horus3a_write_reg(priv, 0x37, (u8)(0x80 | (fc_lpf << 1))); + /* Start Calibration */ + horus3a_write_reg(priv, 0x05, 0x80); + /* IQ Generator enable */ + horus3a_write_reg(priv, 0x2a, 0x7b); + /* tuner stabilization time */ + msleep(60); + /* Store tuned frequency to the struct */ + priv->frequency = ms * 2 * 1000 / mixdiv; + return 0; +} + +static int horus3a_get_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + struct horus3a_priv *priv = fe->tuner_priv; + + *frequency = priv->frequency; + return 0; +} + +static const struct dvb_tuner_ops horus3a_tuner_ops = { + .info = { + .name = "Sony Horus3a", + .frequency_min_hz = 950 * MHz, + .frequency_max_hz = 2150 * MHz, + .frequency_step_hz = 1 * MHz, + }, + .init = horus3a_init, + .release = horus3a_release, + .sleep = horus3a_sleep, + .set_params = horus3a_set_params, + .get_frequency = horus3a_get_frequency, +}; + +struct dvb_frontend *horus3a_attach(struct dvb_frontend *fe, + const struct horus3a_config *config, + struct i2c_adapter *i2c) +{ + u8 buf[3], val; + struct horus3a_priv *priv = NULL; + + priv = kzalloc(sizeof(struct horus3a_priv), GFP_KERNEL); + if (priv == NULL) + return NULL; + priv->i2c_address = (config->i2c_address >> 1); + priv->i2c = i2c; + priv->set_tuner_data = config->set_tuner_priv; + priv->set_tuner = config->set_tuner_callback; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + /* wait 4ms after power on */ + usleep_range(4000, 6000); + /* IQ Generator disable */ + horus3a_write_reg(priv, 0x2a, 0x79); + /* REF_R = Xtal Frequency */ + buf[0] = config->xtal_freq_mhz; + buf[1] = config->xtal_freq_mhz; + buf[2] = 0; + /* 0x6 - 0x8 */ + horus3a_write_regs(priv, 0x6, buf, 3); + /* IQ Out = Single Ended */ + horus3a_write_reg(priv, 0x0a, 0x40); + switch (config->xtal_freq_mhz) { + case 27: + val = 0x1f; + break; + case 24: + val = 0x10; + break; + case 16: + val = 0xc; + break; + default: + val = 0; + dev_warn(&priv->i2c->dev, + "horus3a: invalid xtal frequency %dMHz\n", + config->xtal_freq_mhz); + break; + } + val <<= 2; + horus3a_write_reg(priv, 0x0e, val); + horus3a_enter_power_save(priv); + usleep_range(3000, 5000); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + + memcpy(&fe->ops.tuner_ops, &horus3a_tuner_ops, + sizeof(struct dvb_tuner_ops)); + fe->tuner_priv = priv; + dev_info(&priv->i2c->dev, + "Sony HORUS3A attached on addr=%x at I2C adapter %p\n", + priv->i2c_address, priv->i2c); + return fe; +} +EXPORT_SYMBOL(horus3a_attach); + +MODULE_DESCRIPTION("Sony HORUS3A satellite tuner driver"); +MODULE_AUTHOR("Sergey Kozlov "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3