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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/media/tuners/tda18212.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
Diffstat (limited to 'drivers/media/tuners/tda18212.c')
-rw-r--r--drivers/media/tuners/tda18212.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/drivers/media/tuners/tda18212.c b/drivers/media/tuners/tda18212.c
new file mode 100644
index 000000000..5fdf05a97
--- /dev/null
+++ b/drivers/media/tuners/tda18212.c
@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * NXP TDA18212HN silicon tuner driver
+ *
+ * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
+ */
+
+#include "tda18212.h"
+#include <linux/regmap.h>
+
+struct tda18212_dev {
+ struct tda18212_config cfg;
+ struct i2c_client *client;
+ struct regmap *regmap;
+
+ u32 if_frequency;
+};
+
+static int tda18212_set_params(struct dvb_frontend *fe)
+{
+ struct tda18212_dev *dev = fe->tuner_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int ret, i;
+ u32 if_khz;
+ u8 buf[9];
+ #define DVBT_6 0
+ #define DVBT_7 1
+ #define DVBT_8 2
+ #define DVBT2_6 3
+ #define DVBT2_7 4
+ #define DVBT2_8 5
+ #define DVBC_6 6
+ #define DVBC_8 7
+ #define ATSC_VSB 8
+ #define ATSC_QAM 9
+ static const u8 bw_params[][3] = {
+ /* reg: 0f 13 23 */
+ [DVBT_6] = { 0xb3, 0x20, 0x03 },
+ [DVBT_7] = { 0xb3, 0x31, 0x01 },
+ [DVBT_8] = { 0xb3, 0x22, 0x01 },
+ [DVBT2_6] = { 0xbc, 0x20, 0x03 },
+ [DVBT2_7] = { 0xbc, 0x72, 0x03 },
+ [DVBT2_8] = { 0xbc, 0x22, 0x01 },
+ [DVBC_6] = { 0x92, 0x50, 0x03 },
+ [DVBC_8] = { 0x92, 0x53, 0x03 },
+ [ATSC_VSB] = { 0x7d, 0x20, 0x63 },
+ [ATSC_QAM] = { 0x7d, 0x20, 0x63 },
+ };
+
+ dev_dbg(&dev->client->dev,
+ "delivery_system=%d frequency=%d bandwidth_hz=%d\n",
+ c->delivery_system, c->frequency,
+ c->bandwidth_hz);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
+
+ switch (c->delivery_system) {
+ case SYS_ATSC:
+ if_khz = dev->cfg.if_atsc_vsb;
+ i = ATSC_VSB;
+ break;
+ case SYS_DVBC_ANNEX_B:
+ if_khz = dev->cfg.if_atsc_qam;
+ i = ATSC_QAM;
+ break;
+ case SYS_DVBT:
+ switch (c->bandwidth_hz) {
+ case 6000000:
+ if_khz = dev->cfg.if_dvbt_6;
+ i = DVBT_6;
+ break;
+ case 7000000:
+ if_khz = dev->cfg.if_dvbt_7;
+ i = DVBT_7;
+ break;
+ case 8000000:
+ if_khz = dev->cfg.if_dvbt_8;
+ i = DVBT_8;
+ break;
+ default:
+ ret = -EINVAL;
+ goto error;
+ }
+ break;
+ case SYS_DVBT2:
+ switch (c->bandwidth_hz) {
+ case 6000000:
+ if_khz = dev->cfg.if_dvbt2_6;
+ i = DVBT2_6;
+ break;
+ case 7000000:
+ if_khz = dev->cfg.if_dvbt2_7;
+ i = DVBT2_7;
+ break;
+ case 8000000:
+ if_khz = dev->cfg.if_dvbt2_8;
+ i = DVBT2_8;
+ break;
+ default:
+ ret = -EINVAL;
+ goto error;
+ }
+ break;
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_C:
+ if_khz = dev->cfg.if_dvbc;
+ i = DVBC_8;
+ break;
+ default:
+ ret = -EINVAL;
+ goto error;
+ }
+
+ ret = regmap_write(dev->regmap, 0x23, bw_params[i][2]);
+ if (ret)
+ goto error;
+
+ ret = regmap_write(dev->regmap, 0x06, 0x00);
+ if (ret)
+ goto error;
+
+ ret = regmap_write(dev->regmap, 0x0f, bw_params[i][0]);
+ if (ret)
+ goto error;
+
+ buf[0] = 0x02;
+ buf[1] = bw_params[i][1];
+ buf[2] = 0x03; /* default value */
+ buf[3] = DIV_ROUND_CLOSEST(if_khz, 50);
+ buf[4] = ((c->frequency / 1000) >> 16) & 0xff;
+ buf[5] = ((c->frequency / 1000) >> 8) & 0xff;
+ buf[6] = ((c->frequency / 1000) >> 0) & 0xff;
+ buf[7] = 0xc1;
+ buf[8] = 0x01;
+ ret = regmap_bulk_write(dev->regmap, 0x12, buf, sizeof(buf));
+ if (ret)
+ goto error;
+
+ /* actual IF rounded as it is on register */
+ dev->if_frequency = buf[3] * 50 * 1000;
+
+exit:
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
+
+ return ret;
+
+error:
+ dev_dbg(&dev->client->dev, "failed=%d\n", ret);
+ goto exit;
+}
+
+static int tda18212_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct tda18212_dev *dev = fe->tuner_priv;
+
+ *frequency = dev->if_frequency;
+
+ return 0;
+}
+
+static const struct dvb_tuner_ops tda18212_tuner_ops = {
+ .info = {
+ .name = "NXP TDA18212",
+
+ .frequency_min_hz = 48 * MHz,
+ .frequency_max_hz = 864 * MHz,
+ .frequency_step_hz = 1 * kHz,
+ },
+
+ .set_params = tda18212_set_params,
+ .get_if_frequency = tda18212_get_if_frequency,
+};
+
+static int tda18212_probe(struct i2c_client *client)
+{
+ struct tda18212_config *cfg = client->dev.platform_data;
+ struct dvb_frontend *fe = cfg->fe;
+ struct tda18212_dev *dev;
+ int ret;
+ unsigned int chip_id;
+ char *version;
+ static const struct regmap_config regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ };
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ ret = -ENOMEM;
+ dev_err(&client->dev, "kzalloc() failed\n");
+ goto err;
+ }
+
+ memcpy(&dev->cfg, cfg, sizeof(struct tda18212_config));
+ dev->client = client;
+ dev->regmap = devm_regmap_init_i2c(client, &regmap_config);
+ if (IS_ERR(dev->regmap)) {
+ ret = PTR_ERR(dev->regmap);
+ goto err;
+ }
+
+ /* check if the tuner is there */
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
+
+ ret = regmap_read(dev->regmap, 0x00, &chip_id);
+ dev_dbg(&dev->client->dev, "chip_id=%02x\n", chip_id);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
+
+ if (ret)
+ goto err;
+
+ switch (chip_id) {
+ case 0xc7:
+ version = "M"; /* master */
+ break;
+ case 0x47:
+ version = "S"; /* slave */
+ break;
+ default:
+ ret = -ENODEV;
+ goto err;
+ }
+
+ dev_info(&dev->client->dev,
+ "NXP TDA18212HN/%s successfully identified\n", version);
+
+ fe->tuner_priv = dev;
+ memcpy(&fe->ops.tuner_ops, &tda18212_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+ i2c_set_clientdata(client, dev);
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ kfree(dev);
+ return ret;
+}
+
+static void tda18212_remove(struct i2c_client *client)
+{
+ struct tda18212_dev *dev = i2c_get_clientdata(client);
+ struct dvb_frontend *fe = dev->cfg.fe;
+
+ dev_dbg(&client->dev, "\n");
+
+ memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
+ fe->tuner_priv = NULL;
+ kfree(dev);
+}
+
+static const struct i2c_device_id tda18212_id[] = {
+ {"tda18212", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tda18212_id);
+
+static struct i2c_driver tda18212_driver = {
+ .driver = {
+ .name = "tda18212",
+ },
+ .probe_new = tda18212_probe,
+ .remove = tda18212_remove,
+ .id_table = tda18212_id,
+};
+
+module_i2c_driver(tda18212_driver);
+
+MODULE_DESCRIPTION("NXP TDA18212HN silicon tuner driver");
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_LICENSE("GPL");