diff options
author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/media/dvb-frontends/gp8psk-fe.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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/dvb-frontends/gp8psk-fe.c')
-rw-r--r-- | drivers/media/dvb-frontends/gp8psk-fe.c | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/gp8psk-fe.c b/drivers/media/dvb-frontends/gp8psk-fe.c new file mode 100644 index 000000000..ed671e951 --- /dev/null +++ b/drivers/media/dvb-frontends/gp8psk-fe.c @@ -0,0 +1,397 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Frontend driver for the GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module + * + * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com) + * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com) + * + * Thanks to GENPIX for the sample code used to implement this module. + * + * This module is based off the vp7045 and vp702x modules + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include "gp8psk-fe.h" +#include <media/dvb_frontend.h> + +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); + +#define dprintk(fmt, arg...) do { \ + if (debug) \ + printk(KERN_DEBUG pr_fmt("%s: " fmt), \ + __func__, ##arg); \ +} while (0) + +struct gp8psk_fe_state { + struct dvb_frontend fe; + void *priv; + const struct gp8psk_fe_ops *ops; + bool is_rev1; + u8 lock; + u16 snr; + unsigned long next_status_check; + unsigned long status_check_interval; +}; + +static int gp8psk_tuned_to_DCII(struct dvb_frontend *fe) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + u8 status; + + st->ops->in(st->priv, GET_8PSK_CONFIG, 0, 0, &status, 1); + return status & bmDCtuned; +} + +static int gp8psk_set_tuner_mode(struct dvb_frontend *fe, int mode) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + + return st->ops->out(st->priv, SET_8PSK_CONFIG, mode, 0, NULL, 0); +} + +static int gp8psk_fe_update_status(struct gp8psk_fe_state *st) +{ + u8 buf[6]; + if (time_after(jiffies,st->next_status_check)) { + st->ops->in(st->priv, GET_SIGNAL_LOCK, 0, 0, &st->lock, 1); + st->ops->in(st->priv, GET_SIGNAL_STRENGTH, 0, 0, buf, 6); + st->snr = (buf[1]) << 8 | buf[0]; + st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000; + } + return 0; +} + +static int gp8psk_fe_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + gp8psk_fe_update_status(st); + + if (st->lock) + *status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_SIGNAL | FE_HAS_CARRIER; + else + *status = 0; + + if (*status & FE_HAS_LOCK) + st->status_check_interval = 1000; + else + st->status_check_interval = 100; + return 0; +} + +/* not supported by this Frontend */ +static int gp8psk_fe_read_ber(struct dvb_frontend* fe, u32 *ber) +{ + (void) fe; + *ber = 0; + return 0; +} + +/* not supported by this Frontend */ +static int gp8psk_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc) +{ + (void) fe; + *unc = 0; + return 0; +} + +static int gp8psk_fe_read_snr(struct dvb_frontend* fe, u16 *snr) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + gp8psk_fe_update_status(st); + /* snr is reported in dBu*256 */ + *snr = st->snr; + return 0; +} + +static int gp8psk_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + gp8psk_fe_update_status(st); + /* snr is reported in dBu*256 */ + /* snr / 38.4 ~= 100% strength */ + /* snr * 17 returns 100% strength as 65535 */ + if (st->snr > 0xf00) + *strength = 0xffff; + else + *strength = (st->snr << 4) + st->snr; /* snr*17 */ + return 0; +} + +static int gp8psk_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune) +{ + tune->min_delay_ms = 800; + return 0; +} + +static int gp8psk_fe_set_frontend(struct dvb_frontend *fe) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + u8 cmd[10]; + u32 freq = c->frequency * 1000; + + dprintk("%s()\n", __func__); + + cmd[4] = freq & 0xff; + cmd[5] = (freq >> 8) & 0xff; + cmd[6] = (freq >> 16) & 0xff; + cmd[7] = (freq >> 24) & 0xff; + + /* backwards compatibility: DVB-S + 8-PSK were used for Turbo-FEC */ + if (c->delivery_system == SYS_DVBS && c->modulation == PSK_8) + c->delivery_system = SYS_TURBO; + + switch (c->delivery_system) { + case SYS_DVBS: + if (c->modulation != QPSK) { + dprintk("%s: unsupported modulation selected (%d)\n", + __func__, c->modulation); + return -EOPNOTSUPP; + } + c->fec_inner = FEC_AUTO; + break; + case SYS_DVBS2: /* kept for backwards compatibility */ + dprintk("%s: DVB-S2 delivery system selected\n", __func__); + break; + case SYS_TURBO: + dprintk("%s: Turbo-FEC delivery system selected\n", __func__); + break; + + default: + dprintk("%s: unsupported delivery system selected (%d)\n", + __func__, c->delivery_system); + return -EOPNOTSUPP; + } + + cmd[0] = c->symbol_rate & 0xff; + cmd[1] = (c->symbol_rate >> 8) & 0xff; + cmd[2] = (c->symbol_rate >> 16) & 0xff; + cmd[3] = (c->symbol_rate >> 24) & 0xff; + switch (c->modulation) { + case QPSK: + if (st->is_rev1) + if (gp8psk_tuned_to_DCII(fe)) + st->ops->reload(st->priv); + switch (c->fec_inner) { + case FEC_1_2: + cmd[9] = 0; break; + case FEC_2_3: + cmd[9] = 1; break; + case FEC_3_4: + cmd[9] = 2; break; + case FEC_5_6: + cmd[9] = 3; break; + case FEC_7_8: + cmd[9] = 4; break; + case FEC_AUTO: + cmd[9] = 5; break; + default: + cmd[9] = 5; break; + } + if (c->delivery_system == SYS_TURBO) + cmd[8] = ADV_MOD_TURBO_QPSK; + else + cmd[8] = ADV_MOD_DVB_QPSK; + break; + case PSK_8: /* PSK_8 is for compatibility with DN */ + cmd[8] = ADV_MOD_TURBO_8PSK; + switch (c->fec_inner) { + case FEC_2_3: + cmd[9] = 0; break; + case FEC_3_4: + cmd[9] = 1; break; + case FEC_3_5: + cmd[9] = 2; break; + case FEC_5_6: + cmd[9] = 3; break; + case FEC_8_9: + cmd[9] = 4; break; + default: + cmd[9] = 0; break; + } + break; + case QAM_16: /* QAM_16 is for compatibility with DN */ + cmd[8] = ADV_MOD_TURBO_16QAM; + cmd[9] = 0; + break; + default: /* Unknown modulation */ + dprintk("%s: unsupported modulation selected (%d)\n", + __func__, c->modulation); + return -EOPNOTSUPP; + } + + if (st->is_rev1) + gp8psk_set_tuner_mode(fe, 0); + st->ops->out(st->priv, TUNE_8PSK, 0, 0, cmd, 10); + + st->lock = 0; + st->next_status_check = jiffies; + st->status_check_interval = 200; + + return 0; +} + +static int gp8psk_fe_send_diseqc_msg (struct dvb_frontend* fe, + struct dvb_diseqc_master_cmd *m) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + + dprintk("%s\n", __func__); + + if (st->ops->out(st->priv, SEND_DISEQC_COMMAND, m->msg[0], 0, + m->msg, m->msg_len)) { + return -EINVAL; + } + return 0; +} + +static int gp8psk_fe_send_diseqc_burst(struct dvb_frontend *fe, + enum fe_sec_mini_cmd burst) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + u8 cmd; + + dprintk("%s\n", __func__); + + /* These commands are certainly wrong */ + cmd = (burst == SEC_MINI_A) ? 0x00 : 0x01; + + if (st->ops->out(st->priv, SEND_DISEQC_COMMAND, cmd, 0, + &cmd, 0)) { + return -EINVAL; + } + return 0; +} + +static int gp8psk_fe_set_tone(struct dvb_frontend *fe, + enum fe_sec_tone_mode tone) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + + if (st->ops->out(st->priv, SET_22KHZ_TONE, + (tone == SEC_TONE_ON), 0, NULL, 0)) { + return -EINVAL; + } + return 0; +} + +static int gp8psk_fe_set_voltage(struct dvb_frontend *fe, + enum fe_sec_voltage voltage) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + + if (st->ops->out(st->priv, SET_LNB_VOLTAGE, + voltage == SEC_VOLTAGE_18, 0, NULL, 0)) { + return -EINVAL; + } + return 0; +} + +static int gp8psk_fe_enable_high_lnb_voltage(struct dvb_frontend* fe, long onoff) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + + return st->ops->out(st->priv, USE_EXTRA_VOLT, onoff, 0, NULL, 0); +} + +static int gp8psk_fe_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long sw_cmd) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + u8 cmd = sw_cmd & 0x7f; + + if (st->ops->out(st->priv, SET_DN_SWITCH, cmd, 0, NULL, 0)) + return -EINVAL; + + if (st->ops->out(st->priv, SET_LNB_VOLTAGE, !!(sw_cmd & 0x80), + 0, NULL, 0)) + return -EINVAL; + + return 0; +} + +static void gp8psk_fe_release(struct dvb_frontend* fe) +{ + struct gp8psk_fe_state *st = fe->demodulator_priv; + + kfree(st); +} + +static const struct dvb_frontend_ops gp8psk_fe_ops; + +struct dvb_frontend *gp8psk_fe_attach(const struct gp8psk_fe_ops *ops, + void *priv, bool is_rev1) +{ + struct gp8psk_fe_state *st; + + if (!ops || !ops->in || !ops->out || !ops->reload) { + pr_err("Error! gp8psk-fe ops not defined.\n"); + return NULL; + } + + st = kzalloc(sizeof(struct gp8psk_fe_state), GFP_KERNEL); + if (!st) + return NULL; + + memcpy(&st->fe.ops, &gp8psk_fe_ops, sizeof(struct dvb_frontend_ops)); + st->fe.demodulator_priv = st; + st->ops = ops; + st->priv = priv; + st->is_rev1 = is_rev1; + + pr_info("Frontend %sattached\n", is_rev1 ? "revision 1 " : ""); + + return &st->fe; +} +EXPORT_SYMBOL_GPL(gp8psk_fe_attach); + +static const struct dvb_frontend_ops gp8psk_fe_ops = { + .delsys = { SYS_DVBS }, + .info = { + .name = "Genpix DVB-S", + .frequency_min_hz = 800 * MHz, + .frequency_max_hz = 2250 * MHz, + .frequency_stepsize_hz = 100 * kHz, + .symbol_rate_min = 1000000, + .symbol_rate_max = 45000000, + .symbol_rate_tolerance = 500, /* ppm */ + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + /* + * FE_CAN_QAM_16 is for compatibility + * (Myth incorrectly detects Turbo-QPSK as plain QAM-16) + */ + FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_TURBO_FEC + }, + + .release = gp8psk_fe_release, + + .init = NULL, + .sleep = NULL, + + .set_frontend = gp8psk_fe_set_frontend, + + .get_tune_settings = gp8psk_fe_get_tune_settings, + + .read_status = gp8psk_fe_read_status, + .read_ber = gp8psk_fe_read_ber, + .read_signal_strength = gp8psk_fe_read_signal_strength, + .read_snr = gp8psk_fe_read_snr, + .read_ucblocks = gp8psk_fe_read_unc_blocks, + + .diseqc_send_master_cmd = gp8psk_fe_send_diseqc_msg, + .diseqc_send_burst = gp8psk_fe_send_diseqc_burst, + .set_tone = gp8psk_fe_set_tone, + .set_voltage = gp8psk_fe_set_voltage, + .dishnetwork_send_legacy_command = gp8psk_fe_send_legacy_dish_cmd, + .enable_high_lnb_voltage = gp8psk_fe_enable_high_lnb_voltage +}; + +MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>"); +MODULE_DESCRIPTION("Frontend Driver for Genpix DVB-S"); +MODULE_VERSION("1.1"); +MODULE_LICENSE("GPL"); |