fb709bf5c6
standard rates. Obtained from OpenBSD src/sys/dev/usb/uftdi.c 1.29 src/sys/dev/usb/uftdireg.h 1.11 OpenBSD revisions noted by: ticso, on hackers
339 lines
8.8 KiB
C
339 lines
8.8 KiB
C
/* $NetBSD: uftdireg.h,v 1.6 2002/07/11 21:14:28 augustss Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
/*
|
|
* Definitions for the FTDI USB Single Port Serial Converter -
|
|
* known as FTDI_SIO (Serial Input/Output application of the chipset)
|
|
*
|
|
* 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.ftdi.co.uk) for so kindly providing details
|
|
* of the protocol required to talk to the device and ongoing assistence
|
|
* during development.
|
|
*
|
|
* Bill Ryder - bryder@sgi.com of Silicon Graphics, Inc. is the original
|
|
* author of this file.
|
|
*/
|
|
/* Modified by Lennart Augustsson */
|
|
|
|
/* Vendor Request Interface */
|
|
#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_STATUS 5 /* Retrieve current value of status reg */
|
|
#define FTDI_SIO_SET_EVENT_CHAR 6 /* Set the event character */
|
|
#define FTDI_SIO_SET_ERROR_CHAR 7 /* Set the error character */
|
|
|
|
/* Port Identifier Table */
|
|
#define FTDI_PIT_DEFAULT 0 /* SIOA */
|
|
#define FTDI_PIT_SIOA 1 /* SIOA */
|
|
#define FTDI_PIT_SIOB 2 /* SIOB */
|
|
#define FTDI_PIT_PARALLEL 3 /* Parallel */
|
|
|
|
enum uftdi_type {
|
|
UFTDI_TYPE_SIO,
|
|
UFTDI_TYPE_8U232AM
|
|
};
|
|
|
|
/*
|
|
* 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 = 0x0d
|
|
* 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_RESET */
|
|
#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_SET_BAUDRATE
|
|
* wValue: BaudRate value - see below
|
|
* wIndex: Port
|
|
* wLength: 0
|
|
* Data: None
|
|
*/
|
|
/* FTDI_SIO_SET_BAUDRATE */
|
|
enum {
|
|
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
|
|
};
|
|
|
|
#define FTDI_8U232AM_FREQ 3000000
|
|
|
|
/* Bounds for normal divisors as 4-bit fixed precision ints. */
|
|
#define FTDI_8U232AM_MIN_DIV 0x20
|
|
#define FTDI_8U232AM_MAX_DIV 0x3fff8
|
|
|
|
/*
|
|
* 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..15 Reserved
|
|
*
|
|
*/
|
|
/* FTDI_SIO_SET_DATA */
|
|
#define FTDI_SIO_SET_DATA_BITS(n) (n)
|
|
#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)
|
|
|
|
|
|
/*
|
|
* 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
|
|
*
|
|
* 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_MODEM_CTRL */
|
|
#define FTDI_SIO_SET_DTR_MASK 0x1
|
|
#define FTDI_SIO_SET_DTR_HIGH (1 | ( FTDI_SIO_SET_DTR_MASK << 8))
|
|
#define FTDI_SIO_SET_DTR_LOW (0 | ( FTDI_SIO_SET_DTR_MASK << 8))
|
|
#define FTDI_SIO_SET_RTS_MASK 0x2
|
|
#define FTDI_SIO_SET_RTS_HIGH (2 | ( FTDI_SIO_SET_RTS_MASK << 8))
|
|
#define FTDI_SIO_SET_RTS_LOW (0 | ( FTDI_SIO_SET_RTS_MASK << 8))
|
|
|
|
|
|
/*
|
|
* BmRequestType: 0100 0000b
|
|
* bRequest: FTDI_SIO_SET_FLOW_CTRL
|
|
* wValue: Xoff/Xon
|
|
* wIndex: Protocol/Port - hIndex is protocl / 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_SET_FLOW_CTRL */
|
|
#define FTDI_SIO_DISABLE_FLOW_CTRL 0x0
|
|
#define FTDI_SIO_RTS_CTS_HS 0x1
|
|
#define FTDI_SIO_DTR_DSR_HS 0x2
|
|
#define FTDI_SIO_XON_XOFF_HS 0x4
|
|
|
|
|
|
/*
|
|
* BmRequestType: 0100 0000b
|
|
* bRequest: FTDI_SIO_SET_EVENT_CHAR
|
|
* wValue: Event Char
|
|
* 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_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.
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
* BmRequestType: 0100 0000b
|
|
* bRequest: FTDI_SIO_SET_ERROR_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_SET_ERROR_CHAR
|
|
* Set the parity error replacement character for the specified communications
|
|
* port.
|
|
*/
|
|
|
|
|
|
/*
|
|
* 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_GET_MODEM_STATUS
|
|
* Retrieve the current value of the modem status register.
|
|
*/
|
|
#define FTDI_SIO_CTS_MASK 0x10
|
|
#define FTDI_SIO_DSR_MASK 0x20
|
|
#define FTDI_SIO_RI_MASK 0x40
|
|
#define FTDI_SIO_RLSD_MASK 0x80
|
|
|
|
|
|
|
|
/*
|
|
*
|
|
* 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
|
|
* NOTE: 4 upper bits have same layout as the MSR register in a 16550
|
|
*
|
|
* Offset Description
|
|
* B0..3 Port
|
|
* B4 Clear to Send (CTS)
|
|
* B5 Data Set Ready (DSR)
|
|
* B6 Ring Indicator (RI)
|
|
* B7 Receive Line Signal Detect (RLSD)
|
|
*
|
|
* Byte 1: Line Status
|
|
* NOTE: same layout as the LSR register in a 16550
|
|
*
|
|
* 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
|
|
*
|
|
*
|
|
* 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: Port & length
|
|
*
|
|
* Offset Description
|
|
* B0..1 Port
|
|
* B2..7 Length of message - (not including Byte 0)
|
|
*
|
|
*/
|
|
#define FTDI_PORT_MASK 0x0f
|
|
#define FTDI_MSR_MASK 0xf0
|
|
#define FTDI_GET_MSR(p) (((p)[0]) & FTDI_MSR_MASK)
|
|
#define FTDI_GET_LSR(p) ((p)[1])
|
|
#define FTDI_LSR_MASK (~0x60) /* interesting bits */
|
|
#define FTDI_OUT_TAG(len, port) (((len) << 2) | (port))
|