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/usb/serial/ftdi_sio.h | 579 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 579 insertions(+) create mode 100644 drivers/usb/serial/ftdi_sio.h (limited to 'drivers/usb/serial/ftdi_sio.h') diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h new file mode 100644 index 000000000..55ea61264 --- /dev/null +++ b/drivers/usb/serial/ftdi_sio.h @@ -0,0 +1,579 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Driver definitions for the FTDI USB Single Port Serial Converter - + * known as FTDI_SIO (Serial Input/Output application of the chipset) + * + * For USB vendor/product IDs (VID/PID), please see ftdi_sio_ids.h + * + * + * The example I have is known as the USC-1000 which is available from + * http://www.dse.co.nz - cat no XH4214 It looks similar to this: + * http://www.dansdata.com/usbser.htm but I can't be sure There are other + * USC-1000s which don't look like my device though so beware! + * + * The device is based on the FTDI FT8U100AX chip. It has a DB25 on one side, + * USB on the other. + * + * Thanx to FTDI (http://www.ftdichip.com) for so kindly providing details + * of the protocol required to talk to the device and ongoing assistence + * during development. + * + * Bill Ryder - bryder@sgi.com formerly of Silicon Graphics, Inc.- wrote the + * FTDI_SIO implementation. + * + */ + +/* Commands */ +#define FTDI_SIO_RESET 0 /* Reset the port */ +#define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */ +#define FTDI_SIO_SET_FLOW_CTRL 2 /* Set flow control register */ +#define FTDI_SIO_SET_BAUD_RATE 3 /* Set baud rate */ +#define FTDI_SIO_SET_DATA 4 /* Set the data characteristics of + the port */ +#define FTDI_SIO_GET_MODEM_STATUS 5 /* Retrieve current value of modem + status register */ +#define FTDI_SIO_SET_EVENT_CHAR 6 /* Set the event character */ +#define FTDI_SIO_SET_ERROR_CHAR 7 /* Set the error character */ +#define FTDI_SIO_SET_LATENCY_TIMER 9 /* Set the latency timer */ +#define FTDI_SIO_GET_LATENCY_TIMER 0x0a /* Get the latency timer */ +#define FTDI_SIO_SET_BITMODE 0x0b /* Set bitbang mode */ +#define FTDI_SIO_READ_PINS 0x0c /* Read immediate value of pins */ +#define FTDI_SIO_READ_EEPROM 0x90 /* Read EEPROM */ + +/* Channel indices for FT2232, FT2232H and FT4232H devices */ +#define CHANNEL_A 1 +#define CHANNEL_B 2 +#define CHANNEL_C 3 +#define CHANNEL_D 4 + + +/* + * BmRequestType: 1100 0000b + * bRequest: FTDI_E2_READ + * wValue: 0 + * wIndex: Address of word to read + * wLength: 2 + * Data: Will return a word of data from E2Address + * + */ + +/* Port Identifier Table */ +#define PIT_DEFAULT 0 /* SIOA */ +#define PIT_SIOA 1 /* SIOA */ +/* The device this driver is tested with one has only one port */ +#define PIT_SIOB 2 /* SIOB */ +#define PIT_PARALLEL 3 /* Parallel */ + +/* FTDI_SIO_RESET */ +#define FTDI_SIO_RESET_REQUEST FTDI_SIO_RESET +#define FTDI_SIO_RESET_REQUEST_TYPE 0x40 +#define FTDI_SIO_RESET_SIO 0 +#define FTDI_SIO_RESET_PURGE_RX 1 +#define FTDI_SIO_RESET_PURGE_TX 2 + +/* + * BmRequestType: 0100 0000B + * bRequest: FTDI_SIO_RESET + * wValue: Control Value + * 0 = Reset SIO + * 1 = Purge RX buffer + * 2 = Purge TX buffer + * wIndex: Port + * wLength: 0 + * Data: None + * + * The Reset SIO command has this effect: + * + * Sets flow control set to 'none' + * Event char = $0D + * Event trigger = disabled + * Purge RX buffer + * Purge TX buffer + * Clear DTR + * Clear RTS + * baud and data format not reset + * + * The Purge RX and TX buffer commands affect nothing except the buffers + * + */ + +/* FTDI_SIO_SET_BAUDRATE */ +#define FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE 0x40 +#define FTDI_SIO_SET_BAUDRATE_REQUEST 3 + +/* + * BmRequestType: 0100 0000B + * bRequest: FTDI_SIO_SET_BAUDRATE + * wValue: BaudDivisor value - see below + * wIndex: Port + * wLength: 0 + * Data: None + * The BaudDivisor values are calculated as follows: + * - BaseClock is either 12000000 or 48000000 depending on the device. + * FIXME: I wish I knew how to detect old chips to select proper base clock! + * - BaudDivisor is a fixed point number encoded in a funny way. + * (--WRONG WAY OF THINKING--) + * BaudDivisor is a fixed point number encoded with following bit weighs: + * (-2)(-1)(13..0). It is a radical with a denominator of 4, so values + * end with 0.0 (00...), 0.25 (10...), 0.5 (01...), and 0.75 (11...). + * (--THE REALITY--) + * The both-bits-set has quite different meaning from 0.75 - the chip + * designers have decided it to mean 0.125 instead of 0.75. + * This info looked up in FTDI application note "FT8U232 DEVICES \ Data Rates + * and Flow Control Consideration for USB to RS232". + * - BaudDivisor = (BaseClock / 16) / BaudRate, where the (=) operation should + * automagically re-encode the resulting value to take fractions into + * consideration. + * As all values are integers, some bit twiddling is in order: + * BaudDivisor = (BaseClock / 16 / BaudRate) | + * (((BaseClock / 2 / BaudRate) & 4) ? 0x4000 // 0.5 + * : ((BaseClock / 2 / BaudRate) & 2) ? 0x8000 // 0.25 + * : ((BaseClock / 2 / BaudRate) & 1) ? 0xc000 // 0.125 + * : 0) + * + * For the FT232BM, a 17th divisor bit was introduced to encode the multiples + * of 0.125 missing from the FT8U232AM. Bits 16 to 14 are coded as follows + * (the first four codes are the same as for the FT8U232AM, where bit 16 is + * always 0): + * 000 - add .000 to divisor + * 001 - add .500 to divisor + * 010 - add .250 to divisor + * 011 - add .125 to divisor + * 100 - add .375 to divisor + * 101 - add .625 to divisor + * 110 - add .750 to divisor + * 111 - add .875 to divisor + * Bits 15 to 0 of the 17-bit divisor are placed in the urb value. Bit 16 is + * placed in bit 0 of the urb index. + * + * Note that there are a couple of special cases to support the highest baud + * rates. If the calculated divisor value is 1, this needs to be replaced with + * 0. Additionally for the FT232BM, if the calculated divisor value is 0x4001 + * (1.5), this needs to be replaced with 0x0001 (1) (but this divisor value is + * not supported by the FT8U232AM). + */ + +enum ftdi_sio_baudrate { + ftdi_sio_b300 = 0, + ftdi_sio_b600 = 1, + ftdi_sio_b1200 = 2, + ftdi_sio_b2400 = 3, + ftdi_sio_b4800 = 4, + ftdi_sio_b9600 = 5, + ftdi_sio_b19200 = 6, + ftdi_sio_b38400 = 7, + ftdi_sio_b57600 = 8, + ftdi_sio_b115200 = 9 +}; + +/* + * The ftdi_8U232AM_xxMHz_byyy constants have been removed. The encoded divisor + * values are calculated internally. + */ +#define FTDI_SIO_SET_DATA_REQUEST FTDI_SIO_SET_DATA +#define FTDI_SIO_SET_DATA_REQUEST_TYPE 0x40 +#define FTDI_SIO_SET_DATA_PARITY_NONE (0x0 << 8) +#define FTDI_SIO_SET_DATA_PARITY_ODD (0x1 << 8) +#define FTDI_SIO_SET_DATA_PARITY_EVEN (0x2 << 8) +#define FTDI_SIO_SET_DATA_PARITY_MARK (0x3 << 8) +#define FTDI_SIO_SET_DATA_PARITY_SPACE (0x4 << 8) +#define FTDI_SIO_SET_DATA_STOP_BITS_1 (0x0 << 11) +#define FTDI_SIO_SET_DATA_STOP_BITS_15 (0x1 << 11) +#define FTDI_SIO_SET_DATA_STOP_BITS_2 (0x2 << 11) +#define FTDI_SIO_SET_BREAK (0x1 << 14) +/* FTDI_SIO_SET_DATA */ + +/* + * BmRequestType: 0100 0000B + * bRequest: FTDI_SIO_SET_DATA + * wValue: Data characteristics (see below) + * wIndex: Port + * wLength: 0 + * Data: No + * + * Data characteristics + * + * B0..7 Number of data bits + * B8..10 Parity + * 0 = None + * 1 = Odd + * 2 = Even + * 3 = Mark + * 4 = Space + * B11..13 Stop Bits + * 0 = 1 + * 1 = 1.5 + * 2 = 2 + * B14 + * 1 = TX ON (break) + * 0 = TX OFF (normal state) + * B15 Reserved + * + */ + + + +/* FTDI_SIO_MODEM_CTRL */ +#define FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE 0x40 +#define FTDI_SIO_SET_MODEM_CTRL_REQUEST FTDI_SIO_MODEM_CTRL + +/* + * BmRequestType: 0100 0000B + * bRequest: FTDI_SIO_MODEM_CTRL + * wValue: ControlValue (see below) + * wIndex: Port + * wLength: 0 + * Data: None + * + * NOTE: If the device is in RTS/CTS flow control, the RTS set by this + * command will be IGNORED without an error being returned + * Also - you can not set DTR and RTS with one control message + */ + +#define FTDI_SIO_SET_DTR_MASK 0x1 +#define FTDI_SIO_SET_DTR_HIGH ((FTDI_SIO_SET_DTR_MASK << 8) | 1) +#define FTDI_SIO_SET_DTR_LOW ((FTDI_SIO_SET_DTR_MASK << 8) | 0) +#define FTDI_SIO_SET_RTS_MASK 0x2 +#define FTDI_SIO_SET_RTS_HIGH ((FTDI_SIO_SET_RTS_MASK << 8) | 2) +#define FTDI_SIO_SET_RTS_LOW ((FTDI_SIO_SET_RTS_MASK << 8) | 0) + +/* + * ControlValue + * B0 DTR state + * 0 = reset + * 1 = set + * B1 RTS state + * 0 = reset + * 1 = set + * B2..7 Reserved + * B8 DTR state enable + * 0 = ignore + * 1 = use DTR state + * B9 RTS state enable + * 0 = ignore + * 1 = use RTS state + * B10..15 Reserved + */ + +/* FTDI_SIO_SET_FLOW_CTRL */ +#define FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE 0x40 +#define FTDI_SIO_SET_FLOW_CTRL_REQUEST FTDI_SIO_SET_FLOW_CTRL +#define FTDI_SIO_DISABLE_FLOW_CTRL 0x0 +#define FTDI_SIO_RTS_CTS_HS (0x1 << 8) +#define FTDI_SIO_DTR_DSR_HS (0x2 << 8) +#define FTDI_SIO_XON_XOFF_HS (0x4 << 8) +/* + * BmRequestType: 0100 0000b + * bRequest: FTDI_SIO_SET_FLOW_CTRL + * wValue: Xoff/Xon + * wIndex: Protocol/Port - hIndex is protocol / lIndex is port + * wLength: 0 + * Data: None + * + * hIndex protocol is: + * B0 Output handshaking using RTS/CTS + * 0 = disabled + * 1 = enabled + * B1 Output handshaking using DTR/DSR + * 0 = disabled + * 1 = enabled + * B2 Xon/Xoff handshaking + * 0 = disabled + * 1 = enabled + * + * A value of zero in the hIndex field disables handshaking + * + * If Xon/Xoff handshaking is specified, the hValue field should contain the + * XOFF character and the lValue field contains the XON character. + */ + +/* + * FTDI_SIO_GET_LATENCY_TIMER + * + * Set the timeout interval. The FTDI collects data from the + * device, transmitting it to the host when either A) 62 bytes are + * received, or B) the timeout interval has elapsed and the buffer + * contains at least 1 byte. Setting this value to a small number + * can dramatically improve performance for applications which send + * small packets, since the default value is 16ms. + */ +#define FTDI_SIO_GET_LATENCY_TIMER_REQUEST FTDI_SIO_GET_LATENCY_TIMER +#define FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE 0xC0 + +/* + * BmRequestType: 1100 0000b + * bRequest: FTDI_SIO_GET_LATENCY_TIMER + * wValue: 0 + * wIndex: Port + * wLength: 0 + * Data: latency (on return) + */ + +/* + * FTDI_SIO_SET_LATENCY_TIMER + * + * Set the timeout interval. The FTDI collects data from the + * device, transmitting it to the host when either A) 62 bytes are + * received, or B) the timeout interval has elapsed and the buffer + * contains at least 1 byte. Setting this value to a small number + * can dramatically improve performance for applications which send + * small packets, since the default value is 16ms. + */ +#define FTDI_SIO_SET_LATENCY_TIMER_REQUEST FTDI_SIO_SET_LATENCY_TIMER +#define FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE 0x40 + +/* + * BmRequestType: 0100 0000b + * bRequest: FTDI_SIO_SET_LATENCY_TIMER + * wValue: Latency (milliseconds) + * wIndex: Port + * wLength: 0 + * Data: None + * + * wValue: + * B0..7 Latency timer + * B8..15 0 + * + */ + +/* + * FTDI_SIO_SET_EVENT_CHAR + * + * Set the special event character for the specified communications port. + * If the device sees this character it will immediately return the + * data read so far - rather than wait 40ms or until 62 bytes are read + * which is what normally happens. + */ + + +#define FTDI_SIO_SET_EVENT_CHAR_REQUEST FTDI_SIO_SET_EVENT_CHAR +#define FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE 0x40 + + +/* + * BmRequestType: 0100 0000b + * bRequest: FTDI_SIO_SET_EVENT_CHAR + * wValue: EventChar + * wIndex: Port + * wLength: 0 + * Data: None + * + * wValue: + * B0..7 Event Character + * B8 Event Character Processing + * 0 = disabled + * 1 = enabled + * B9..15 Reserved + * + */ + +/* FTDI_SIO_SET_ERROR_CHAR */ + +/* + * Set the parity error replacement character for the specified communications + * port + */ + +/* + * BmRequestType: 0100 0000b + * bRequest: FTDI_SIO_SET_EVENT_CHAR + * wValue: Error Char + * wIndex: Port + * wLength: 0 + * Data: None + * + *Error Char + * B0..7 Error Character + * B8 Error Character Processing + * 0 = disabled + * 1 = enabled + * B9..15 Reserved + * + */ + +/* FTDI_SIO_GET_MODEM_STATUS */ +/* Retrieve the current value of the modem status register */ + +#define FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE 0xc0 +#define FTDI_SIO_GET_MODEM_STATUS_REQUEST FTDI_SIO_GET_MODEM_STATUS +#define FTDI_SIO_CTS_MASK 0x10 +#define FTDI_SIO_DSR_MASK 0x20 +#define FTDI_SIO_RI_MASK 0x40 +#define FTDI_SIO_RLSD_MASK 0x80 +/* + * BmRequestType: 1100 0000b + * bRequest: FTDI_SIO_GET_MODEM_STATUS + * wValue: zero + * wIndex: Port + * wLength: 1 + * Data: Status + * + * One byte of data is returned + * B0..3 0 + * B4 CTS + * 0 = inactive + * 1 = active + * B5 DSR + * 0 = inactive + * 1 = active + * B6 Ring Indicator (RI) + * 0 = inactive + * 1 = active + * B7 Receive Line Signal Detect (RLSD) + * 0 = inactive + * 1 = active + */ + +/* FTDI_SIO_SET_BITMODE */ +#define FTDI_SIO_SET_BITMODE_REQUEST_TYPE 0x40 +#define FTDI_SIO_SET_BITMODE_REQUEST FTDI_SIO_SET_BITMODE + +/* Possible bitmodes for FTDI_SIO_SET_BITMODE_REQUEST */ +#define FTDI_SIO_BITMODE_RESET 0x00 +#define FTDI_SIO_BITMODE_CBUS 0x20 + +/* FTDI_SIO_READ_PINS */ +#define FTDI_SIO_READ_PINS_REQUEST_TYPE 0xc0 +#define FTDI_SIO_READ_PINS_REQUEST FTDI_SIO_READ_PINS + +/* + * FTDI_SIO_READ_EEPROM + * + * EEPROM format found in FTDI AN_201, "FT-X MTP memory Configuration", + * http://www.ftdichip.com/Support/Documents/AppNotes/AN_201_FT-X%20MTP%20Memory%20Configuration.pdf + */ +#define FTDI_SIO_READ_EEPROM_REQUEST_TYPE 0xc0 +#define FTDI_SIO_READ_EEPROM_REQUEST FTDI_SIO_READ_EEPROM + +#define FTDI_FTX_CBUS_MUX_GPIO 0x8 +#define FTDI_FT232R_CBUS_MUX_GPIO 0xa + + +/* Descriptors returned by the device + * + * Device Descriptor + * + * Offset Field Size Value Description + * 0 bLength 1 0x12 Size of descriptor in bytes + * 1 bDescriptorType 1 0x01 DEVICE Descriptor Type + * 2 bcdUSB 2 0x0110 USB Spec Release Number + * 4 bDeviceClass 1 0x00 Class Code + * 5 bDeviceSubClass 1 0x00 SubClass Code + * 6 bDeviceProtocol 1 0x00 Protocol Code + * 7 bMaxPacketSize0 1 0x08 Maximum packet size for endpoint 0 + * 8 idVendor 2 0x0403 Vendor ID + * 10 idProduct 2 0x8372 Product ID (FTDI_SIO_PID) + * 12 bcdDevice 2 0x0001 Device release number + * 14 iManufacturer 1 0x01 Index of man. string desc + * 15 iProduct 1 0x02 Index of prod string desc + * 16 iSerialNumber 1 0x02 Index of serial nmr string desc + * 17 bNumConfigurations 1 0x01 Number of possible configurations + * + * Configuration Descriptor + * + * Offset Field Size Value + * 0 bLength 1 0x09 Size of descriptor in bytes + * 1 bDescriptorType 1 0x02 CONFIGURATION Descriptor Type + * 2 wTotalLength 2 0x0020 Total length of data + * 4 bNumInterfaces 1 0x01 Number of interfaces supported + * 5 bConfigurationValue 1 0x01 Argument for SetCOnfiguration() req + * 6 iConfiguration 1 0x02 Index of config string descriptor + * 7 bmAttributes 1 0x20 Config characteristics Remote Wakeup + * 8 MaxPower 1 0x1E Max power consumption + * + * Interface Descriptor + * + * Offset Field Size Value + * 0 bLength 1 0x09 Size of descriptor in bytes + * 1 bDescriptorType 1 0x04 INTERFACE Descriptor Type + * 2 bInterfaceNumber 1 0x00 Number of interface + * 3 bAlternateSetting 1 0x00 Value used to select alternate + * 4 bNumEndpoints 1 0x02 Number of endpoints + * 5 bInterfaceClass 1 0xFF Class Code + * 6 bInterfaceSubClass 1 0xFF Subclass Code + * 7 bInterfaceProtocol 1 0xFF Protocol Code + * 8 iInterface 1 0x02 Index of interface string description + * + * IN Endpoint Descriptor + * + * Offset Field Size Value + * 0 bLength 1 0x07 Size of descriptor in bytes + * 1 bDescriptorType 1 0x05 ENDPOINT descriptor type + * 2 bEndpointAddress 1 0x82 Address of endpoint + * 3 bmAttributes 1 0x02 Endpoint attributes - Bulk + * 4 bNumEndpoints 2 0x0040 maximum packet size + * 5 bInterval 1 0x00 Interval for polling endpoint + * + * OUT Endpoint Descriptor + * + * Offset Field Size Value + * 0 bLength 1 0x07 Size of descriptor in bytes + * 1 bDescriptorType 1 0x05 ENDPOINT descriptor type + * 2 bEndpointAddress 1 0x02 Address of endpoint + * 3 bmAttributes 1 0x02 Endpoint attributes - Bulk + * 4 bNumEndpoints 2 0x0040 maximum packet size + * 5 bInterval 1 0x00 Interval for polling endpoint + * + * DATA FORMAT + * + * IN Endpoint + * + * The device reserves the first two bytes of data on this endpoint to contain + * the current values of the modem and line status registers. In the absence of + * data, the device generates a message consisting of these two status bytes + * every 40 ms + * + * Byte 0: Modem Status + * + * Offset Description + * B0 Reserved - must be 1 + * B1 Reserved - must be 0 + * B2 Reserved - must be 0 + * B3 Reserved - must be 0 + * B4 Clear to Send (CTS) + * B5 Data Set Ready (DSR) + * B6 Ring Indicator (RI) + * B7 Receive Line Signal Detect (RLSD) + * + * Byte 1: Line Status + * + * Offset Description + * B0 Data Ready (DR) + * B1 Overrun Error (OE) + * B2 Parity Error (PE) + * B3 Framing Error (FE) + * B4 Break Interrupt (BI) + * B5 Transmitter Holding Register (THRE) + * B6 Transmitter Empty (TEMT) + * B7 Error in RCVR FIFO + * + */ +#define FTDI_RS0_CTS (1 << 4) +#define FTDI_RS0_DSR (1 << 5) +#define FTDI_RS0_RI (1 << 6) +#define FTDI_RS0_RLSD (1 << 7) + +#define FTDI_RS_DR 1 +#define FTDI_RS_OE (1<<1) +#define FTDI_RS_PE (1<<2) +#define FTDI_RS_FE (1<<3) +#define FTDI_RS_BI (1<<4) +#define FTDI_RS_THRE (1<<5) +#define FTDI_RS_TEMT (1<<6) +#define FTDI_RS_FIFO (1<<7) + +/* + * OUT Endpoint + * + * This device reserves the first bytes of data on this endpoint contain the + * length and port identifier of the message. For the FTDI USB Serial converter + * the port identifier is always 1. + * + * Byte 0: Line Status + * + * Offset Description + * B0 Reserved - must be 1 + * B1 Reserved - must be 0 + * B2..7 Length of message - (not including Byte 0) + * + */ -- cgit v1.2.3