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/tuners/qm1d1b0004.c | 265 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 265 insertions(+) create mode 100644 drivers/media/tuners/qm1d1b0004.c (limited to 'drivers/media/tuners/qm1d1b0004.c') diff --git a/drivers/media/tuners/qm1d1b0004.c b/drivers/media/tuners/qm1d1b0004.c new file mode 100644 index 000000000..0b6f750c5 --- /dev/null +++ b/drivers/media/tuners/qm1d1b0004.c @@ -0,0 +1,265 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Sharp QM1D1B0004 satellite tuner + * + * Copyright (C) 2014 Akihiro Tsukada + * + * based on (former) drivers/media/pci/pt1/va1j5jf8007s.c. + */ + +/* + * Note: + * Since the data-sheet of this tuner chip is not available, + * this driver lacks some tuner_ops and config options. + * In addition, the implementation might be dependent on the specific use + * in the FE module: VA1J5JF8007S and/or in the product: Earthsoft PT1/PT2. + */ + +#include +#include +#include +#include "qm1d1b0004.h" + +/* + * Tuner I/F (copied from the former va1j5jf8007s.c) + * b[0] I2C addr + * b[1] "0":1, BG:2, divider_quotient[7:3]:5 + * b[2] divider_quotient[2:0]:3, divider_remainder:5 + * b[3] "111":3, LPF[3:2]:2, TM:1, "0":1, REF:1 + * b[4] BANDX, PSC:1, LPF[1:0]:2, DIV:1, "0":1 + * + * PLL frequency step := + * REF == 0 -> PLL XTL frequency(4MHz) / 8 + * REF == 1 -> PLL XTL frequency(4MHz) / 4 + * + * PreScaler := + * PSC == 0 -> x32 + * PSC == 1 -> x16 + * + * divider_quotient := (frequency / PLL frequency step) / PreScaler + * divider_remainder := (frequency / PLL frequency step) % PreScaler + * + * LPF := LPF Frequency / 1000 / 2 - 2 + * LPF Frequency @ baudrate=28.86Mbps = 30000 + * + * band (1..9) + * band 1 (freq < 986000) -> DIV:1, BANDX:5, PSC:1 + * band 2 (freq < 1072000) -> DIV:1, BANDX:6, PSC:1 + * band 3 (freq < 1154000) -> DIV:1, BANDX:7, PSC:0 + * band 4 (freq < 1291000) -> DIV:0, BANDX:1, PSC:0 + * band 5 (freq < 1447000) -> DIV:0, BANDX:2, PSC:0 + * band 6 (freq < 1615000) -> DIV:0, BANDX:3, PSC:0 + * band 7 (freq < 1791000) -> DIV:0, BANDX:4, PSC:0 + * band 8 (freq < 1972000) -> DIV:0, BANDX:5, PSC:0 + * band 9 (freq < 2150000) -> DIV:0, BANDX:6, PSC:0 + */ + +#define QM1D1B0004_PSC_MASK (1 << 4) + +#define QM1D1B0004_XTL_FREQ 4000 +#define QM1D1B0004_LPF_FALLBACK 30000 + +#if 0 /* Currently unused */ +static const struct qm1d1b0004_config default_cfg = { + .lpf_freq = QM1D1B0004_CFG_LPF_DFLT, + .half_step = false, +}; +#endif + +struct qm1d1b0004_state { + struct qm1d1b0004_config cfg; + struct i2c_client *i2c; +}; + + +struct qm1d1b0004_cb_map { + u32 frequency; + u8 cb; +}; + +static const struct qm1d1b0004_cb_map cb_maps[] = { + { 986000, 0xb2 }, + { 1072000, 0xd2 }, + { 1154000, 0xe2 }, + { 1291000, 0x20 }, + { 1447000, 0x40 }, + { 1615000, 0x60 }, + { 1791000, 0x80 }, + { 1972000, 0xa0 }, +}; + +static u8 lookup_cb(u32 frequency) +{ + int i; + const struct qm1d1b0004_cb_map *map; + + for (i = 0; i < ARRAY_SIZE(cb_maps); i++) { + map = &cb_maps[i]; + if (frequency < map->frequency) + return map->cb; + } + return 0xc0; +} + +static int qm1d1b0004_set_params(struct dvb_frontend *fe) +{ + struct qm1d1b0004_state *state; + u32 frequency, pll, lpf_freq; + u16 word; + u8 buf[4], cb, lpf; + int ret; + + state = fe->tuner_priv; + frequency = fe->dtv_property_cache.frequency; + + pll = QM1D1B0004_XTL_FREQ / 4; + if (state->cfg.half_step) + pll /= 2; + word = DIV_ROUND_CLOSEST(frequency, pll); + cb = lookup_cb(frequency); + if (cb & QM1D1B0004_PSC_MASK) + word = (word << 1 & ~0x1f) | (word & 0x0f); + + /* step.1: set frequency with BG:2, TM:0(4MHZ), LPF:4MHz */ + buf[0] = 0x40 | word >> 8; + buf[1] = word; + /* inconsisnten with the above I/F doc. maybe the doc is wrong */ + buf[2] = 0xe0 | state->cfg.half_step; + buf[3] = cb; + ret = i2c_master_send(state->i2c, buf, 4); + if (ret < 0) + return ret; + + /* step.2: set TM:1 */ + buf[0] = 0xe4 | state->cfg.half_step; + ret = i2c_master_send(state->i2c, buf, 1); + if (ret < 0) + return ret; + msleep(20); + + /* step.3: set LPF */ + lpf_freq = state->cfg.lpf_freq; + if (lpf_freq == QM1D1B0004_CFG_LPF_DFLT) + lpf_freq = fe->dtv_property_cache.symbol_rate / 1000; + if (lpf_freq == 0) + lpf_freq = QM1D1B0004_LPF_FALLBACK; + lpf = DIV_ROUND_UP(lpf_freq, 2000) - 2; + buf[0] = 0xe4 | ((lpf & 0x0c) << 1) | state->cfg.half_step; + buf[1] = cb | ((lpf & 0x03) << 2); + ret = i2c_master_send(state->i2c, buf, 2); + if (ret < 0) + return ret; + + /* step.4: read PLL lock? */ + buf[0] = 0; + ret = i2c_master_recv(state->i2c, buf, 1); + if (ret < 0) + return ret; + return 0; +} + + +static int qm1d1b0004_set_config(struct dvb_frontend *fe, void *priv_cfg) +{ + struct qm1d1b0004_state *state; + + state = fe->tuner_priv; + memcpy(&state->cfg, priv_cfg, sizeof(state->cfg)); + return 0; +} + + +static int qm1d1b0004_init(struct dvb_frontend *fe) +{ + struct qm1d1b0004_state *state; + u8 buf[2] = {0xf8, 0x04}; + + state = fe->tuner_priv; + if (state->cfg.half_step) + buf[0] |= 0x01; + + return i2c_master_send(state->i2c, buf, 2); +} + + +static const struct dvb_tuner_ops qm1d1b0004_ops = { + .info = { + .name = "Sharp qm1d1b0004", + + .frequency_min_hz = 950 * MHz, + .frequency_max_hz = 2150 * MHz, + }, + + .init = qm1d1b0004_init, + + .set_params = qm1d1b0004_set_params, + .set_config = qm1d1b0004_set_config, +}; + +static int +qm1d1b0004_probe(struct i2c_client *client) +{ + struct dvb_frontend *fe; + struct qm1d1b0004_config *cfg; + struct qm1d1b0004_state *state; + int ret; + + cfg = client->dev.platform_data; + fe = cfg->fe; + i2c_set_clientdata(client, fe); + + fe->tuner_priv = kzalloc(sizeof(struct qm1d1b0004_state), GFP_KERNEL); + if (!fe->tuner_priv) { + ret = -ENOMEM; + goto err_mem; + } + + memcpy(&fe->ops.tuner_ops, &qm1d1b0004_ops, sizeof(fe->ops.tuner_ops)); + + state = fe->tuner_priv; + state->i2c = client; + ret = qm1d1b0004_set_config(fe, cfg); + if (ret != 0) + goto err_priv; + + dev_info(&client->dev, "Sharp QM1D1B0004 attached.\n"); + return 0; + +err_priv: + kfree(fe->tuner_priv); +err_mem: + fe->tuner_priv = NULL; + return ret; +} + +static void qm1d1b0004_remove(struct i2c_client *client) +{ + struct dvb_frontend *fe; + + fe = i2c_get_clientdata(client); + kfree(fe->tuner_priv); + fe->tuner_priv = NULL; +} + + +static const struct i2c_device_id qm1d1b0004_id[] = { + {"qm1d1b0004", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, qm1d1b0004_id); + +static struct i2c_driver qm1d1b0004_driver = { + .driver = { + .name = "qm1d1b0004", + }, + .probe_new = qm1d1b0004_probe, + .remove = qm1d1b0004_remove, + .id_table = qm1d1b0004_id, +}; + +module_i2c_driver(qm1d1b0004_driver); + +MODULE_DESCRIPTION("Sharp QM1D1B0004"); +MODULE_AUTHOR("Akihiro Tsukada"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3