Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 202 insertions, 0 deletions

diff --git a/drivers/usb/serial/keyspan_usa28msg.h b/drivers/usb/serial/keyspan_usa28msg.h
new file mode 100644
index 0000000000..a19f3fe5d9
--- /dev/null
+++ b/drivers/usb/serial/keyspan_usa28msg.h
@@ -0,0 +1,202 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+	usa28msg.h
+
+	Copyright (C) 1998-2000 InnoSys Incorporated.  All Rights Reserved
+	This file is available under a BSD-style copyright
+
+	Keyspan USB Async Message Formats for the USA26X
+
+	Redistribution and use in source and binary forms, with or without
+	modification, are permitted provided that the following conditions are
+	met:
+
+	1. Redistributions of source code must retain this licence text
+   	without modification, this list of conditions, and the following
+   	disclaimer.  The following copyright notice must appear immediately at
+   	the beginning of all source files:
+
+        	Copyright (C) 1998-2000 InnoSys Incorporated.  All Rights Reserved
+
+        	This file is available under a BSD-style copyright
+
+	2. The name of InnoSys Incorporated may not be used to endorse or promote
+   	products derived from this software without specific prior written
+   	permission.
+
+	THIS SOFTWARE IS PROVIDED BY INNOSYS CORP. ``AS IS'' AND ANY EXPRESS OR
+	IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+	OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+	NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+	INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+	SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+	CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+	LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+	OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+	SUCH DAMAGE.    
+
+	Note: these message formats are common to USA18, USA19, and USA28;
+	(for USA28X, see usa26msg.h)
+
+	Buffer formats for RX/TX data messages are not defined by
+	a structure, but are described here:
+
+	USB OUT (host -> USA28, transmit) messages contain a 
+	REQUEST_ACK indicator (set to 0xff to request an ACK at the 
+	completion of transmit; 0x00 otherwise), followed by data.
+	If the port is configured for parity, the data will be an 
+	alternating string of parity and data bytes, so the message
+	format will be:
+
+		RQSTACK PAR DAT PAR DAT ...
+
+	so the maximum length is 63 bytes (1 + 62, or 31 data bytes);
+	always an odd number for the total message length.
+
+	If there is no parity, the format is simply:
+
+		RQSTACK DAT DAT DAT ...
+
+	with a total data length of 63.
+
+	USB IN (USA28 -> host, receive) messages contain data and parity
+	if parity is configred, thusly:
+	
+		DAT PAR DAT PAR DAT PAR ...
+
+	for a total of 32 data bytes;
+	
+	If parity is not configured, the format is:
+
+		DAT DAT DAT ...
+
+	for a total of 64 data bytes.
+
+	In the TX messages (USB OUT), the 0x01 bit of the PARity byte is 
+	the parity bit.  In the RX messages (USB IN), the PARity byte is 
+	the content of the 8051's status register; the parity bit 
+	(RX_PARITY_BIT) is the 0x04 bit.
+
+	revision history:
+
+	1999may06	add resetDataToggle to control message
+	2000mar21	add rs232invalid to status response message
+	2000apr04	add 230.4Kb definition to setBaudRate
+	2000apr13	add/remove loopbackMode switch
+	2000apr13	change definition of setBaudRate to cover 115.2Kb, too
+	2000jun01	add extended BSD-style copyright text
+*/
+
+#ifndef	__USA28MSG__
+#define	__USA28MSG__
+
+
+struct keyspan_usa28_portControlMessage
+{
+	/*
+		there are four types of "commands" sent in the control message:
+
+		1.	configuration changes which must be requested by setting
+			the corresponding "set" flag (and should only be requested
+			when necessary, to reduce overhead on the USA28):
+	*/
+	u8	setBaudRate,	// 0=don't set, 1=baudLo/Hi, 2=115.2K, 3=230.4K
+		baudLo,			// host does baud divisor calculation
+		baudHi;			// baudHi is only used for first port (gives lower rates)
+
+	/*
+		2.	configuration changes which are done every time (because it's
+			hardly more trouble to do them than to check whether to do them):
+	*/
+	u8	parity,			// 1=use parity, 0=don't
+		ctsFlowControl,	        // all except 19Q: 1=use CTS flow control, 0=don't
+					// 19Q: 0x08:CTSflowControl 0x10:DSRflowControl
+		xonFlowControl,	// 1=use XON/XOFF flow control, 0=don't
+		rts,			// 1=on, 0=off
+		dtr;			// 1=on, 0=off
+
+	/*
+		3.	configuration data which is simply used as is (no overhead,
+			but must be correct in every host message).
+	*/
+	u8	forwardingLength,  // forward when this number of chars available
+		forwardMs,		// forward this many ms after last rx data
+		breakThreshold,	// specified in ms, 1-255 (see note below)
+		xonChar,		// specified in current character format
+		xoffChar;		// specified in current character format
+
+	/*
+		4.	commands which are flags only; these are processed in order
+			(so that, e.g., if both _txOn and _txOff flags are set, the
+			port ends in a TX_OFF state); any non-zero value is respected
+	*/
+	u8	_txOn,			// enable transmitting (and continue if there's data)
+		_txOff,			// stop transmitting
+		txFlush,		// toss outbound data
+		txForceXoff,	// pretend we've received XOFF
+		txBreak,		// turn on break (leave on until txOn clears it)
+		rxOn,			// turn on receiver
+		rxOff,			// turn off receiver
+		rxFlush,		// toss inbound data
+		rxForward,		// forward all inbound data, NOW
+		returnStatus,	// return current status n times (1 or 2)
+		resetDataToggle;// reset data toggle state to DATA0
+	
+};
+
+struct keyspan_usa28_portStatusMessage
+{
+	u8	port,			// 0=first, 1=second, 2=global (see below)
+		cts,
+		dsr,			// (not used in all products)
+		dcd,
+
+		ri,				// (not used in all products)
+		_txOff,			// port has been disabled (by host)
+		_txXoff,		// port is in XOFF state (either host or RX XOFF)
+		dataLost,		// count of lost chars; wraps; not guaranteed exact
+
+		rxEnabled,		// as configured by rxOn/rxOff 1=on, 0=off
+		rxBreak,		// 1=we're in break state
+		rs232invalid,	// 1=no valid signals on rs-232 inputs
+		controlResponse;// 1=a control messages has been processed
+};
+
+// bit defines in txState
+#define	TX_OFF			0x01	// requested by host txOff command
+#define	TX_XOFF			0x02	// either real, or simulated by host
+
+struct keyspan_usa28_globalControlMessage
+{
+	u8	sendGlobalStatus,	// 2=request for two status responses
+		resetStatusToggle,	// 1=reset global status toggle
+		resetStatusCount;	// a cycling value
+};
+
+struct keyspan_usa28_globalStatusMessage
+{
+	u8	port,				// 3
+		sendGlobalStatus,	// from request, decremented
+		resetStatusCount;	// as in request
+};
+
+struct keyspan_usa28_globalDebugMessage
+{
+	u8	port,				// 2
+		n,					// typically a count/status byte
+		b;					// typically a data byte
+};
+
+// ie: the maximum length of an EZUSB endpoint buffer
+#define	MAX_DATA_LEN			64
+
+// the parity bytes have only one significant bit
+#define	RX_PARITY_BIT			0x04
+#define	TX_PARITY_BIT			0x01
+
+// update status approx. 60 times a second (16.6666 ms)
+#define	STATUS_UPDATE_INTERVAL	16
+
+#endif
+