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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/w1/slaves/w1_ds2780.h
downloadlinux-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/w1/slaves/w1_ds2780.h')
-rw-r--r--drivers/w1/slaves/w1_ds2780.h125
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/w1/slaves/w1_ds2780.h b/drivers/w1/slaves/w1_ds2780.h
new file mode 100644
index 000000000..99e38ed78
--- /dev/null
+++ b/drivers/w1/slaves/w1_ds2780.h
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * 1-Wire implementation for the ds2780 chip
+ *
+ * Copyright (C) 2010 Indesign, LLC
+ *
+ * Author: Clifton Barnes <cabarnes@indesign-llc.com>
+ *
+ * Based on w1-ds2760 driver
+ */
+
+#ifndef _W1_DS2780_H
+#define _W1_DS2780_H
+
+/* Function commands */
+#define W1_DS2780_READ_DATA 0x69
+#define W1_DS2780_WRITE_DATA 0x6C
+#define W1_DS2780_COPY_DATA 0x48
+#define W1_DS2780_RECALL_DATA 0xB8
+#define W1_DS2780_LOCK 0x6A
+
+/* Register map */
+/* Register 0x00 Reserved */
+#define DS2780_STATUS_REG 0x01
+#define DS2780_RAAC_MSB_REG 0x02
+#define DS2780_RAAC_LSB_REG 0x03
+#define DS2780_RSAC_MSB_REG 0x04
+#define DS2780_RSAC_LSB_REG 0x05
+#define DS2780_RARC_REG 0x06
+#define DS2780_RSRC_REG 0x07
+#define DS2780_IAVG_MSB_REG 0x08
+#define DS2780_IAVG_LSB_REG 0x09
+#define DS2780_TEMP_MSB_REG 0x0A
+#define DS2780_TEMP_LSB_REG 0x0B
+#define DS2780_VOLT_MSB_REG 0x0C
+#define DS2780_VOLT_LSB_REG 0x0D
+#define DS2780_CURRENT_MSB_REG 0x0E
+#define DS2780_CURRENT_LSB_REG 0x0F
+#define DS2780_ACR_MSB_REG 0x10
+#define DS2780_ACR_LSB_REG 0x11
+#define DS2780_ACRL_MSB_REG 0x12
+#define DS2780_ACRL_LSB_REG 0x13
+#define DS2780_AS_REG 0x14
+#define DS2780_SFR_REG 0x15
+#define DS2780_FULL_MSB_REG 0x16
+#define DS2780_FULL_LSB_REG 0x17
+#define DS2780_AE_MSB_REG 0x18
+#define DS2780_AE_LSB_REG 0x19
+#define DS2780_SE_MSB_REG 0x1A
+#define DS2780_SE_LSB_REG 0x1B
+/* Register 0x1C - 0x1E Reserved */
+#define DS2780_EEPROM_REG 0x1F
+#define DS2780_EEPROM_BLOCK0_START 0x20
+/* Register 0x20 - 0x2F User EEPROM */
+#define DS2780_EEPROM_BLOCK0_END 0x2F
+/* Register 0x30 - 0x5F Reserved */
+#define DS2780_EEPROM_BLOCK1_START 0x60
+#define DS2780_CONTROL_REG 0x60
+#define DS2780_AB_REG 0x61
+#define DS2780_AC_MSB_REG 0x62
+#define DS2780_AC_LSB_REG 0x63
+#define DS2780_VCHG_REG 0x64
+#define DS2780_IMIN_REG 0x65
+#define DS2780_VAE_REG 0x66
+#define DS2780_IAE_REG 0x67
+#define DS2780_AE_40_REG 0x68
+#define DS2780_RSNSP_REG 0x69
+#define DS2780_FULL_40_MSB_REG 0x6A
+#define DS2780_FULL_40_LSB_REG 0x6B
+#define DS2780_FULL_3040_SLOPE_REG 0x6C
+#define DS2780_FULL_2030_SLOPE_REG 0x6D
+#define DS2780_FULL_1020_SLOPE_REG 0x6E
+#define DS2780_FULL_0010_SLOPE_REG 0x6F
+#define DS2780_AE_3040_SLOPE_REG 0x70
+#define DS2780_AE_2030_SLOPE_REG 0x71
+#define DS2780_AE_1020_SLOPE_REG 0x72
+#define DS2780_AE_0010_SLOPE_REG 0x73
+#define DS2780_SE_3040_SLOPE_REG 0x74
+#define DS2780_SE_2030_SLOPE_REG 0x75
+#define DS2780_SE_1020_SLOPE_REG 0x76
+#define DS2780_SE_0010_SLOPE_REG 0x77
+#define DS2780_RSGAIN_MSB_REG 0x78
+#define DS2780_RSGAIN_LSB_REG 0x79
+#define DS2780_RSTC_REG 0x7A
+#define DS2780_FRSGAIN_MSB_REG 0x7B
+#define DS2780_FRSGAIN_LSB_REG 0x7C
+#define DS2780_EEPROM_BLOCK1_END 0x7C
+/* Register 0x7D - 0xFF Reserved */
+
+/* Number of valid register addresses */
+#define DS2780_DATA_SIZE 0x80
+
+/* Status register bits */
+#define DS2780_STATUS_REG_CHGTF (1 << 7)
+#define DS2780_STATUS_REG_AEF (1 << 6)
+#define DS2780_STATUS_REG_SEF (1 << 5)
+#define DS2780_STATUS_REG_LEARNF (1 << 4)
+/* Bit 3 Reserved */
+#define DS2780_STATUS_REG_UVF (1 << 2)
+#define DS2780_STATUS_REG_PORF (1 << 1)
+/* Bit 0 Reserved */
+
+/* Control register bits */
+/* Bit 7 Reserved */
+#define DS2780_CONTROL_REG_UVEN (1 << 6)
+#define DS2780_CONTROL_REG_PMOD (1 << 5)
+#define DS2780_CONTROL_REG_RNAOP (1 << 4)
+/* Bit 0 - 3 Reserved */
+
+/* Special feature register bits */
+/* Bit 1 - 7 Reserved */
+#define DS2780_SFR_REG_PIOSC (1 << 0)
+
+/* EEPROM register bits */
+#define DS2780_EEPROM_REG_EEC (1 << 7)
+#define DS2780_EEPROM_REG_LOCK (1 << 6)
+/* Bit 2 - 6 Reserved */
+#define DS2780_EEPROM_REG_BL1 (1 << 1)
+#define DS2780_EEPROM_REG_BL0 (1 << 0)
+
+extern int w1_ds2780_io(struct device *dev, char *buf, int addr, size_t count,
+ int io);
+extern int w1_ds2780_eeprom_cmd(struct device *dev, int addr, int cmd);
+
+#endif /* !_W1_DS2780_H */