USB Serial Keyspan: add support for USA-49WG & USA-28XG

Add support for Keyspan adapters: USA-49WG and USA-28XG Signed-off-by: Lucy P. McCoy <lucy@keyspan.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2026-03-06 15:25:10 -08:00 · 2007-05-18 12:10:41 -07:00
parent 87e71b473e
commit 0ca1268e10
3 changed files with 710 additions and 34 deletions
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
--- a/drivers/usb/serial/keyspan.h
+++ b/drivers/usb/serial/keyspan.h
@@ -99,6 +99,10 @@ static int  keyspan_usa90_send_setup	(struct usb_serial *serial,
 					 struct usb_serial_port *port,
 					 int reset_port);

+static int  keyspan_usa67_send_setup	(struct usb_serial *serial,
+					 struct usb_serial_port *port,
+					 int reset_port);
+
 /* Struct used for firmware - increased size of data section
   to allow Keyspan's 'C' firmware struct to be used unmodified */
 struct ezusb_hex_record {
@@ -229,15 +233,17 @@ struct ezusb_hex_record {
 #define	keyspan_usa28_product_id		0x010f
 #define	keyspan_usa28x_product_id		0x0110
 #define	keyspan_usa28xa_product_id		0x0115
+#define	keyspan_usa28xb_product_id		0x0110
+#define	keyspan_usa28xg_product_id		0x0135
 #define	keyspan_usa49w_product_id		0x010a
 #define	keyspan_usa49wlc_product_id		0x012a
-
+#define	keyspan_usa49wg_product_id		0x0131

 struct keyspan_device_details {
 	/* product ID value */
 	int	product_id;

-	enum	{msg_usa26, msg_usa28, msg_usa49, msg_usa90} msg_format;
+	enum	{msg_usa26, msg_usa28, msg_usa49, msg_usa90, msg_usa67} msg_format;

 		/* Number of physical ports */
 	int	num_ports;
@@ -264,6 +270,9 @@ struct keyspan_device_details {
 		/* Endpoint used for input status */
 	int	instat_endpoint;

+		/* Endpoint used for input data 49WG only */
+	int	indat_endpoint;
+
 		/* Endpoint used for global control functions */
 	int	glocont_endpoint;

@@ -287,6 +296,7 @@ static const struct keyspan_device_details usa18x_device_details = {
 	.inack_endpoints	= {0x85},
 	.outcont_endpoints	= {0x05},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
 	.baudclk		= KEYSPAN_USA18X_BAUDCLK,
@@ -303,6 +313,7 @@ static const struct keyspan_device_details usa19_device_details = {
 	.inack_endpoints	= {0x83},
 	.outcont_endpoints	= {0x03},
 	.instat_endpoint	= 0x84,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= -1,
 	.calculate_baud_rate	= keyspan_usa19_calc_baud,
 	.baudclk		= KEYSPAN_USA19_BAUDCLK,
@@ -319,6 +330,7 @@ static const struct keyspan_device_details usa19qi_device_details = {
 	.inack_endpoints	= {0x83},
 	.outcont_endpoints	= {0x03},
 	.instat_endpoint	= 0x84,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= -1,
 	.calculate_baud_rate	= keyspan_usa28_calc_baud,
 	.baudclk		= KEYSPAN_USA19_BAUDCLK,
@@ -335,6 +347,7 @@ static const struct keyspan_device_details mpr_device_details = {
 	.inack_endpoints	= {0x83},
 	.outcont_endpoints	= {0x03},
 	.instat_endpoint	= 0x84,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= -1,
 	.calculate_baud_rate	= keyspan_usa28_calc_baud,
 	.baudclk		= KEYSPAN_USA19_BAUDCLK,
@@ -351,6 +364,7 @@ static const struct keyspan_device_details usa19qw_device_details = {
 	.inack_endpoints	= {0x85},
 	.outcont_endpoints	= {0x05},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
 	.baudclk		= KEYSPAN_USA19W_BAUDCLK,
@@ -367,6 +381,7 @@ static const struct keyspan_device_details usa19w_device_details = {
 	.inack_endpoints	= {0x85},
 	.outcont_endpoints	= {0x05},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
 	.baudclk		= KEYSPAN_USA19W_BAUDCLK,
@@ -383,6 +398,7 @@ static const struct keyspan_device_details usa19hs_device_details = {
 	.inack_endpoints	= {-1},
 	.outcont_endpoints	= {0x02},
 	.instat_endpoint	= 0x82,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= -1,
 	.calculate_baud_rate	= keyspan_usa19hs_calc_baud,
 	.baudclk		= KEYSPAN_USA19HS_BAUDCLK,
@@ -399,6 +415,7 @@ static const struct keyspan_device_details usa28_device_details = {
 	.inack_endpoints	= {0x85, 0x86},
 	.outcont_endpoints	= {0x05, 0x06},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa28_calc_baud,
 	.baudclk		= KEYSPAN_USA28_BAUDCLK,		
@@ -415,6 +432,7 @@ static const struct keyspan_device_details usa28x_device_details = {
 	.inack_endpoints	= {0x85, 0x86},
 	.outcont_endpoints	= {0x05, 0x06},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
 	.baudclk		= KEYSPAN_USA28X_BAUDCLK,
@@ -431,11 +449,28 @@ static const struct keyspan_device_details usa28xa_device_details = {
 	.inack_endpoints	= {0x85, 0x86},
 	.outcont_endpoints	= {0x05, 0x06},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
 	.baudclk		= KEYSPAN_USA28X_BAUDCLK,
 };

+static const struct keyspan_device_details usa28xg_device_details = {
+	.product_id		= keyspan_usa28xg_product_id,
+	.msg_format		= msg_usa67,
+	.num_ports		= 2,
+	.indat_endp_flip	= 0,
+	.outdat_endp_flip	= 0,
+	.indat_endpoints	= {0x84, 0x88},
+	.outdat_endpoints	= {0x02, 0x06},
+	.inack_endpoints	= {-1, -1},
+	.outcont_endpoints	= {-1, -1},
+	.instat_endpoint	= 0x81,
+	.indat_endpoint		= -1,
+	.glocont_endpoint	= 0x01,
+	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
+	.baudclk		= KEYSPAN_USA28X_BAUDCLK,
+};
 /* We don't need a separate entry for the usa28xb as it appears as a 28x anyway */

 static const struct keyspan_device_details usa49w_device_details = {
@@ -449,6 +484,7 @@ static const struct keyspan_device_details usa49w_device_details = {
 	.inack_endpoints	= {-1, -1, -1, -1},
 	.outcont_endpoints	= {-1, -1, -1, -1},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
 	.baudclk		= KEYSPAN_USA49W_BAUDCLK,
@@ -465,11 +501,29 @@ static const struct keyspan_device_details usa49wlc_device_details = {
 	.inack_endpoints	= {-1, -1, -1, -1},
 	.outcont_endpoints	= {-1, -1, -1, -1},
 	.instat_endpoint	= 0x87,
+	.indat_endpoint		= -1,
 	.glocont_endpoint	= 0x07,
 	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
 	.baudclk		= KEYSPAN_USA19W_BAUDCLK,
 };

+static const struct keyspan_device_details usa49wg_device_details = {
+	.product_id		= keyspan_usa49wg_product_id,
+	.msg_format		= msg_usa49,
+	.num_ports		= 4,
+	.indat_endp_flip	= 0,
+	.outdat_endp_flip	= 0,
+	.indat_endpoints	= {-1, -1, -1, -1},		/* single 'global' data in EP */
+	.outdat_endpoints	= {0x01, 0x02, 0x04, 0x06},
+	.inack_endpoints	= {-1, -1, -1, -1},
+	.outcont_endpoints	= {-1, -1, -1, -1},
+	.instat_endpoint	= 0x81,
+	.indat_endpoint		= 0x88,
+	.glocont_endpoint	= 0x00,				/* uses control EP */
+	.calculate_baud_rate	= keyspan_usa19w_calc_baud,
+	.baudclk		= KEYSPAN_USA19W_BAUDCLK,
+};
+
 static const struct keyspan_device_details *keyspan_devices[] = {
 	&usa18x_device_details,
 	&usa19_device_details,
@@ -481,9 +535,11 @@ static const struct keyspan_device_details *keyspan_devices[] = {
 	&usa28_device_details,
 	&usa28x_device_details,
 	&usa28xa_device_details,
+	&usa28xg_device_details,
 	/* 28xb not required as it renumerates as a 28x */
 	&usa49w_device_details,
 	&usa49wlc_device_details,
+	&usa49wg_device_details,
 	NULL,
 };

@@ -510,8 +566,11 @@ static struct usb_device_id keyspan_ids_combined[] = {
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
+	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_product_id) },
+	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id)},
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
+	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
 	{ } /* Terminating entry */
 };

@@ -557,12 +616,15 @@ static struct usb_device_id keyspan_2port_ids[] = {
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
+	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_product_id) },
+	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
 	{ } /* Terminating entry */
 };

 static struct usb_device_id keyspan_4port_ids[] = {
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id) },
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
+	{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
 	{ } /* Terminating entry */
 };

@@ -573,7 +635,6 @@ static struct usb_serial_driver keyspan_pre_device = {
 		.name		= "keyspan_no_firm",
 	},
 	.description		= "Keyspan - (without firmware)",
-	.usb_driver		= &keyspan_driver,
 	.id_table		= keyspan_pre_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
 	.num_bulk_in		= NUM_DONT_CARE,
@@ -588,7 +649,6 @@ static struct usb_serial_driver keyspan_1port_device = {
 		.name		= "keyspan_1",
 	},
 	.description		= "Keyspan 1 port adapter",
-	.usb_driver		= &keyspan_driver,
 	.id_table		= keyspan_1port_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
 	.num_bulk_in		= NUM_DONT_CARE,
@@ -616,7 +676,6 @@ static struct usb_serial_driver keyspan_2port_device = {
 		.name		= "keyspan_2",
 	},
 	.description		= "Keyspan 2 port adapter",
-	.usb_driver		= &keyspan_driver,
 	.id_table		= keyspan_2port_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
 	.num_bulk_in		= NUM_DONT_CARE,
@@ -644,11 +703,10 @@ static struct usb_serial_driver keyspan_4port_device = {
 		.name		= "keyspan_4",
 	},
 	.description		= "Keyspan 4 port adapter",
-	.usb_driver		= &keyspan_driver,
 	.id_table		= keyspan_4port_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
-	.num_bulk_in		= 5,
-	.num_bulk_out		= 5,
+	.num_bulk_in		= NUM_DONT_CARE,
+	.num_bulk_out		= NUM_DONT_CARE,
 	.num_ports		= 4,
 	.open			= keyspan_open,
 	.close			= keyspan_close,
--- a/drivers/usb/serial/keyspan_usa67msg.h
+++ b/drivers/usb/serial/keyspan_usa67msg.h
@@ -0,0 +1,254 @@
+/*
+	usa67msg.h
+
+	Copyright (c) 1998-2007 InnoSys Incorporated.  All Rights Reserved
+	This file is available under a BSD-style copyright
+
+	Keyspan USB Async Firmware to run on Anchor FX1
+
+	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) 1998-2007 InnoSys Incorporated.  All Rights Reserved
+
+        	This file is available under a BSD-style copyright
+
+	2. Redistributions in binary form must reproduce the above copyright
+   	notice, this list of conditions and the following disclaimer in the
+   	documentation and/or other materials provided with the distribution.
+
+	3. The name of InnoSys Incorprated 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.
+
+	Fourth revision: This message format supports the USA28XG
+
+	Buffer formats for RX/TX data messages are not defined by
+	a structure, but are described here:
+
+	USB OUT (host -> USAxx, transmit) messages contain a
+	REQUEST_ACK indicator (set to 0xff to request an ACK at the
+	completion of transmit; 0x00 otherwise), followed by data:
+
+		RQSTACK DAT DAT DAT ...
+
+	with a total data length of up to 63.
+
+	USB IN (USAxx -> host, receive) messages begin with a status
+	byte in which the 0x80 bit is either:
+
+		(a)	0x80 bit clear
+			indicates that the bytes following it are all data
+			bytes:
+
+				STAT DATA DATA DATA DATA DATA ...
+
+			for a total of up to 63 DATA bytes,
+
+	or:
+
+		(b)	0x80 bit set
+			indiates that the bytes following alternate data and
+			status bytes:
+
+				STAT DATA STAT DATA STAT DATA STAT DATA ...
+
+			for a total of up to 32 DATA bytes.
+
+	The valid bits in the STAT bytes are:
+
+		OVERRUN	0x02
+		PARITY	0x04
+		FRAMING	0x08
+		BREAK	0x10
+
+	Notes:
+
+	(1) The OVERRUN bit can appear in either (a) or (b) format
+		messages, but the but the PARITY/FRAMING/BREAK bits
+		only appear in (b) format messages.
+	(2) For the host to determine the exact point at which the
+		overrun occurred (to identify the point in the data
+		stream at which the data was lost), it needs to count
+		128 characters, starting at the first character of the
+		message in which OVERRUN was reported; the lost character(s)
+		would have been received between the 128th and 129th
+		characters.
+	(3)	An RX data message in which the first byte has 0x80 clear
+		serves as a "break off" indicator.
+
+	revision history:
+
+	1999feb10	add reportHskiaChanges to allow us to ignore them
+	1999feb10	add txAckThreshold for fast+loose throughput enhancement
+	1999mar30	beef up support for RX error reporting
+	1999apr14	add resetDataToggle to control message
+	2000jan04	merge with usa17msg.h
+	2000jun01	add extended BSD-style copyright text
+	2001jul05	change message format to improve OVERRUN case
+	2002jun05	update copyright date, improve comments
+	2006feb06	modify for FX1 chip
+
+*/
+
+#ifndef	__USA67MSG__
+#define	__USA67MSG__
+
+
+// all things called "ControlMessage" are sent on the 'control' endpoint
+
+typedef struct keyspan_usa67_portControlMessage
+{
+	u8	port;		// 0 or 1 (selects port)
+	/*
+		there are three 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 device):
+	*/
+	u8	setClocking,	// host requests baud rate be set
+		baudLo,			// host does baud divisor calculation
+		baudHi,			// baudHi is only used for first port (gives lower rates)
+		externalClock_txClocking,
+						// 0=internal, other=external
+
+		setLcr,			// host requests lcr be set
+		lcr,			// use PARITY, STOPBITS, DATABITS below
+
+		setFlowControl,	// host requests flow control be set
+		ctsFlowControl,	// 1=use CTS flow control, 0=don't
+		xonFlowControl,	// 1=use XON/XOFF flow control, 0=don't
+		xonChar,		// specified in current character format
+		xoffChar,		// specified in current character format
+
+		setTxTriState_setRts,
+						// host requests TX tri-state be set
+		txTriState_rts,	// 1=active (normal), 0=tristate (off)
+
+		setHskoa_setDtr,
+						// host requests HSKOA output be set
+		hskoa_dtr,		// 1=on, 0=off
+
+		setPrescaler,	// host requests prescalar be set (default: 13)
+		prescaler;		// specified as N/8; values 8-ff are valid
+						// must be set any time internal baud rate is set;
+						// must not be set when external clocking is used
+
+	/*
+		3.	configuration data which is simply used as is (no overhead,
+			but must be specified correctly in every host message).
+	*/
+	u8	forwardingLength,  // forward when this number of chars available
+		reportHskiaChanges_dsrFlowControl,
+						// 1=normal; 0=ignore external clock
+						// 1=use DSR flow control, 0=don't
+		txAckThreshold,	// 0=not allowed, 1=normal, 2-255 deliver ACK faster
+		loopbackMode;	// 0=no loopback, 1=loopback enabled
+
+	/*
+		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
+		txBreak,		// turn on break (cleared by _txOn)
+		rxOn,			// turn on receiver
+		rxOff,			// turn off receiver
+		rxFlush,		// toss inbound data
+		rxForward,		// forward all inbound data, NOW (as if fwdLen==1)
+		returnStatus,	// return current status (even if it hasn't changed)
+		resetDataToggle;// reset data toggle state to DATA0
+
+} keyspan_usa67_portControlMessage;
+
+// defines for bits in lcr
+#define	USA_DATABITS_5		0x00
+#define	USA_DATABITS_6		0x01
+#define	USA_DATABITS_7		0x02
+#define	USA_DATABITS_8		0x03
+#define	STOPBITS_5678_1		0x00	// 1 stop bit for all byte sizes
+#define	STOPBITS_5_1p5		0x04	// 1.5 stop bits for 5-bit byte
+#define	STOPBITS_678_2		0x04	// 2 stop bits for 6/7/8-bit byte
+#define	USA_PARITY_NONE		0x00
+#define	USA_PARITY_ODD		0x08
+#define	USA_PARITY_EVEN		0x18
+#define	PARITY_1			0x28
+#define	PARITY_0			0x38
+
+// all things called "StatusMessage" are sent on the status endpoint
+
+typedef struct keyspan_usa67_portStatusMessage	// one for each port
+{
+	u8	port,			// 0=first, 1=second, other=see below
+		hskia_cts,		// reports HSKIA pin
+		gpia_dcd,		// reports GPIA pin
+		_txOff,			// port has been disabled (by host)
+		_txXoff,		// port is in XOFF state (either host or RX XOFF)
+		txAck,			// indicates a TX message acknowledgement
+		rxEnabled,		// as configured by rxOn/rxOff 1=on, 0=off
+		controlResponse;// 1=a control message has been processed
+} keyspan_usa67_portStatusMessage;
+
+// bits in RX data message when STAT byte is included
+#define	RXERROR_OVERRUN	0x02
+#define	RXERROR_PARITY	0x04
+#define	RXERROR_FRAMING	0x08
+#define	RXERROR_BREAK	0x10
+
+typedef struct keyspan_usa67_globalControlMessage
+{
+	u8	port,	 			// 3
+		sendGlobalStatus,	// 2=request for two status responses
+		resetStatusToggle,	// 1=reset global status toggle
+		resetStatusCount;	// a cycling value
+} keyspan_usa67_globalControlMessage;
+
+typedef struct keyspan_usa67_globalStatusMessage
+{
+	u8	port,				// 3
+		sendGlobalStatus,	// from request, decremented
+		resetStatusCount;	// as in request
+} keyspan_usa67_globalStatusMessage;
+
+typedef struct keyspan_usa67_globalDebugMessage
+{
+	u8	port,				// 2
+		a,
+		b,
+		c,
+		d;
+} keyspan_usa67_globalDebugMessage;
+
+// ie: the maximum length of an FX1 endpoint buffer
+#define	MAX_DATA_LEN			64
+
+// update status approx. 60 times a second (16.6666 ms)
+#define	STATUS_UPDATE_INTERVAL	16
+
+// status rationing tuning value (each port gets checked each n ms)
+#define	STATUS_RATION	10
+
+#endif
+
+