Staging: add aten2011 usb to serial converter driver.

Many thanks to Russell Lang <gsview@ghostgum.com.au> for his
help in getting this working on newer kernel versions and
for pointing out this driver in the first place.

Cc: Russell Lang <gsview@ghostgum.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/Kconfig

@@ -99,5 +99,7 @@ source "drivers/staging/pohmelfs/Kconfig"
 
 source "drivers/staging/stlc45xx/Kconfig"
 
+source "drivers/staging/uc2322/Kconfig"
+
 endif # !STAGING_EXCLUDE_BUILD
 endif # STAGING

drivers/staging/Makefile

@@ -32,3 +32,4 @@ obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_DST)		+= dst/
 obj-$(CONFIG_POHMELFS)		+= pohmelfs/
 obj-$(CONFIG_STLC45XX)		+= stlc45xx/
+obj-$(CONFIG_USB_SERIAL_ATEN2011)	+= uc2322/

drivers/staging/uc2322/Kconfig

+config USB_SERIAL_ATEN2011
+	tristate "ATEN 2011 USB to serial device support"
+	depends on USB_SERIAL
+	default N
+	---help---
+	  Say Y here if you want to use a ATEN 2011 dual port USB to serial
+	  adapter.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called aten2011.

drivers/staging/uc2322/Makefile

+obj-$(CONFIG_USB_SERIAL_ATEN2011)	+= aten2011.o

drivers/staging/uc2322/TODO

+TODO:
+	- checkpatch.pl cleanups
+	- sparse cleanups
+	- remove dead and useless code (auditing the tty ioctls to
+	  verify that they really are correct and needed.)
+
+Please send any patches to Greg Kroah-Hartman <greg@kroah.com> and
+Russell Lang <gsview@ghostgum.com.au>.

drivers/staging/uc2322/aten2011_16C50.h

+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#if !defined(_16C50_H)
+#define	_16C50_H
+
+/*************************************
+ * Bit definitions for each register *
+ *************************************/
+#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 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 ATEN2011_MSR_CTS	0x10	/* Current state of CTS */
+#define ATEN2011_MSR_DSR	0x20	/* Current state of DSR */
+#define ATEN2011_MSR_RI		0x40	/* Current state of RI */
+#define ATEN2011_MSR_CD		0x80	/* Current state of CD */
+
+#endif	/* if !defined(_16C50_H) */
+