aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb/serial/io_16654.h
diff options
context:
space:
mode:
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/usb/serial/io_16654.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/usb/serial/io_16654.h')
-rw-r--r--drivers/usb/serial/io_16654.h192
1 files changed, 192 insertions, 0 deletions
diff --git a/drivers/usb/serial/io_16654.h b/drivers/usb/serial/io_16654.h
new file mode 100644
index 000000000..f18501f05
--- /dev/null
+++ b/drivers/usb/serial/io_16654.h
@@ -0,0 +1,192 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/************************************************************************
+ *
+ * 16654.H Definitions for 16C654 UART used on EdgePorts
+ *
+ * Copyright (C) 1998 Inside Out Networks, Inc.
+ *
+ ************************************************************************/
+
+#if !defined(_16654_H)
+#define _16654_H
+
+/************************************************************************
+ *
+ * D e f i n e s / T y p e d e f s
+ *
+ ************************************************************************/
+
+ //
+ // UART register numbers
+ // Numbers 0-7 are passed to the Edgeport directly. Numbers 8 and
+ // above are used internally to indicate that we must enable access
+ // to them via LCR bit 0x80 or LCR = 0xBF.
+ // The register number sent to the Edgeport is then (x & 0x7).
+ //
+ // Driver must not access registers that affect operation of the
+ // the EdgePort firmware -- that includes THR, RHR, IER, FCR.
+
+
+#define THR 0 // ! Transmit Holding Register (Write)
+#define RDR 0 // ! Receive Holding Register (Read)
+#define IER 1 // ! Interrupt Enable Register
+#define FCR 2 // ! Fifo Control Register (Write)
+#define ISR 2 // Interrupt Status Register (Read)
+#define LCR 3 // Line Control Register
+#define MCR 4 // Modem Control Register
+#define LSR 5 // Line Status Register
+#define MSR 6 // Modem Status Register
+#define SPR 7 // ScratchPad Register
+#define DLL 8 // Bank2[ 0 ] Divisor Latch LSB
+#define DLM 9 // Bank2[ 1 ] Divisor Latch MSB
+#define EFR 10 // Bank2[ 2 ] Extended Function Register
+//efine unused 11 // Bank2[ 3 ]
+#define XON1 12 // Bank2[ 4 ] Xon-1
+#define XON2 13 // Bank2[ 5 ] Xon-2
+#define XOFF1 14 // Bank2[ 6 ] Xoff-1
+#define XOFF2 15 // Bank2[ 7 ] Xoff-2
+
+#define NUM_16654_REGS 16
+
+#define IS_REG_2ND_BANK(x) ((x) >= 8)
+
+ //
+ // Bit definitions for each register
+ //
+
+#define IER_RX 0x01 // Enable receive interrupt
+#define IER_TX 0x02 // Enable transmit interrupt
+#define IER_RXS 0x04 // Enable receive status interrupt
+#define IER_MDM 0x08 // Enable modem status interrupt
+#define IER_SLEEP 0x10 // Enable sleep mode
+#define IER_XOFF 0x20 // Enable s/w flow control (XOFF) interrupt
+#define IER_RTS 0x40 // Enable RTS interrupt
+#define IER_CTS 0x80 // Enable CTS interrupt
+#define IER_ENABLE_ALL 0xFF // Enable all ints
+
+
+#define FCR_FIFO_EN 0x01 // Enable FIFOs
+#define FCR_RXCLR 0x02 // Reset Rx FIFO
+#define FCR_TXCLR 0x04 // Reset Tx FIFO
+#define FCR_DMA_BLK 0x08 // Enable DMA block mode
+#define FCR_TX_LEVEL_MASK 0x30 // Mask for Tx FIFO Level
+#define FCR_TX_LEVEL_8 0x00 // Tx FIFO Level = 8 bytes
+#define FCR_TX_LEVEL_16 0x10 // Tx FIFO Level = 16 bytes
+#define FCR_TX_LEVEL_32 0x20 // Tx FIFO Level = 32 bytes
+#define FCR_TX_LEVEL_56 0x30 // Tx FIFO Level = 56 bytes
+#define FCR_RX_LEVEL_MASK 0xC0 // Mask for Rx FIFO Level
+#define FCR_RX_LEVEL_8 0x00 // Rx FIFO Level = 8 bytes
+#define FCR_RX_LEVEL_16 0x40 // Rx FIFO Level = 16 bytes
+#define FCR_RX_LEVEL_56 0x80 // Rx FIFO Level = 56 bytes
+#define FCR_RX_LEVEL_60 0xC0 // Rx FIFO Level = 60 bytes
+
+
+#define ISR_INT_MDM_STATUS 0x00 // Modem status int pending
+#define ISR_INT_NONE 0x01 // No interrupt pending
+#define ISR_INT_TXRDY 0x02 // Tx ready int pending
+#define ISR_INT_RXRDY 0x04 // Rx ready int pending
+#define ISR_INT_LINE_STATUS 0x06 // Line status int pending
+#define ISR_INT_RX_TIMEOUT 0x0C // Rx timeout int pending
+#define ISR_INT_RX_XOFF 0x10 // Rx Xoff int pending
+#define ISR_INT_RTS_CTS 0x20 // RTS/CTS change int pending
+#define ISR_FIFO_ENABLED 0xC0 // Bits set if FIFOs enabled
+#define ISR_INT_BITS_MASK 0x3E // Mask to isolate valid int causes
+
+
+#define LCR_BITS_5 0x00 // 5 bits/char
+#define LCR_BITS_6 0x01 // 6 bits/char
+#define LCR_BITS_7 0x02 // 7 bits/char
+#define LCR_BITS_8 0x03 // 8 bits/char
+#define LCR_BITS_MASK 0x03 // Mask for bits/char field
+
+#define LCR_STOP_1 0x00 // 1 stop bit
+#define LCR_STOP_1_5 0x04 // 1.5 stop bits (if 5 bits/char)
+#define LCR_STOP_2 0x04 // 2 stop bits (if 6-8 bits/char)
+#define LCR_STOP_MASK 0x04 // Mask for stop bits field
+
+#define LCR_PAR_NONE 0x00 // No parity
+#define LCR_PAR_ODD 0x08 // Odd parity
+#define LCR_PAR_EVEN 0x18 // Even parity
+#define LCR_PAR_MARK 0x28 // Force parity bit to 1
+#define LCR_PAR_SPACE 0x38 // Force parity bit to 0
+#define LCR_PAR_MASK 0x38 // Mask for parity field
+
+#define LCR_SET_BREAK 0x40 // Set Break condition
+#define LCR_DL_ENABLE 0x80 // Enable access to divisor latch
+
+#define LCR_ACCESS_EFR 0xBF // Load this value to access DLL,DLM,
+ // and also the '654-only registers
+ // EFR, XON1, XON2, XOFF1, XOFF2
+
+
+#define MCR_DTR 0x01 // Assert DTR
+#define MCR_RTS 0x02 // Assert RTS
+#define MCR_OUT1 0x04 // Loopback only: Sets state of RI
+#define MCR_MASTER_IE 0x08 // Enable interrupt outputs
+#define MCR_LOOPBACK 0x10 // Set internal (digital) loopback mode
+#define MCR_XON_ANY 0x20 // Enable any char to exit XOFF mode
+#define MCR_IR_ENABLE 0x40 // Enable IrDA functions
+#define MCR_BRG_DIV_4 0x80 // Divide baud rate clk by /4 instead of /1
+
+
+#define LSR_RX_AVAIL 0x01 // Rx data available
+#define LSR_OVER_ERR 0x02 // Rx overrun
+#define LSR_PAR_ERR 0x04 // Rx parity error
+#define LSR_FRM_ERR 0x08 // Rx framing error
+#define LSR_BREAK 0x10 // Rx break condition detected
+#define LSR_TX_EMPTY 0x20 // Tx Fifo empty
+#define LSR_TX_ALL_EMPTY 0x40 // Tx Fifo and shift register empty
+#define LSR_FIFO_ERR 0x80 // Rx Fifo contains at least 1 erred char
+
+
+#define EDGEPORT_MSR_DELTA_CTS 0x01 // CTS changed from last read
+#define EDGEPORT_MSR_DELTA_DSR 0x02 // DSR changed from last read
+#define EDGEPORT_MSR_DELTA_RI 0x04 // RI changed from 0 -> 1
+#define EDGEPORT_MSR_DELTA_CD 0x08 // CD changed from last read
+#define EDGEPORT_MSR_CTS 0x10 // Current state of CTS
+#define EDGEPORT_MSR_DSR 0x20 // Current state of DSR
+#define EDGEPORT_MSR_RI 0x40 // Current state of RI
+#define EDGEPORT_MSR_CD 0x80 // Current state of CD
+
+
+
+ // Tx Rx
+ //-------------------------------
+#define EFR_SWFC_NONE 0x00 // None None
+#define EFR_SWFC_RX1 0x02 // None XOFF1
+#define EFR_SWFC_RX2 0x01 // None XOFF2
+#define EFR_SWFC_RX12 0x03 // None XOFF1 & XOFF2
+#define EFR_SWFC_TX1 0x08 // XOFF1 None
+#define EFR_SWFC_TX1_RX1 0x0a // XOFF1 XOFF1
+#define EFR_SWFC_TX1_RX2 0x09 // XOFF1 XOFF2
+#define EFR_SWFC_TX1_RX12 0x0b // XOFF1 XOFF1 & XOFF2
+#define EFR_SWFC_TX2 0x04 // XOFF2 None
+#define EFR_SWFC_TX2_RX1 0x06 // XOFF2 XOFF1
+#define EFR_SWFC_TX2_RX2 0x05 // XOFF2 XOFF2
+#define EFR_SWFC_TX2_RX12 0x07 // XOFF2 XOFF1 & XOFF2
+#define EFR_SWFC_TX12 0x0c // XOFF1 & XOFF2 None
+#define EFR_SWFC_TX12_RX1 0x0e // XOFF1 & XOFF2 XOFF1
+#define EFR_SWFC_TX12_RX2 0x0d // XOFF1 & XOFF2 XOFF2
+#define EFR_SWFC_TX12_RX12 0x0f // XOFF1 & XOFF2 XOFF1 & XOFF2
+
+#define EFR_TX_FC_MASK 0x0c // Mask to isolate Rx flow control
+#define EFR_TX_FC_NONE 0x00 // No Tx Xon/Xoff flow control
+#define EFR_TX_FC_X1 0x08 // Transmit Xon1/Xoff1
+#define EFR_TX_FC_X2 0x04 // Transmit Xon2/Xoff2
+#define EFR_TX_FC_X1_2 0x0c // Transmit Xon1&2/Xoff1&2
+
+#define EFR_RX_FC_MASK 0x03 // Mask to isolate Rx flow control
+#define EFR_RX_FC_NONE 0x00 // No Rx Xon/Xoff flow control
+#define EFR_RX_FC_X1 0x02 // Receiver compares Xon1/Xoff1
+#define EFR_RX_FC_X2 0x01 // Receiver compares Xon2/Xoff2
+#define EFR_RX_FC_X1_2 0x03 // Receiver compares Xon1&2/Xoff1&2
+
+
+#define EFR_SWFC_MASK 0x0F // Mask for software flow control field
+#define EFR_ENABLE_16654 0x10 // Enable 16C654 features
+#define EFR_SPEC_DETECT 0x20 // Enable special character detect interrupt
+#define EFR_AUTO_RTS 0x40 // Use RTS for Rx flow control
+#define EFR_AUTO_CTS 0x80 // Use CTS for Tx flow control
+
+#endif // if !defined(_16654_H)
+