47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/** \file server/drivers/hd44780-usb4all.h
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* USB-4-all connection type of hd44780 driver for Hitachi HD44780 based
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* LCD displays connected to an USB-4-all controller.
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*/
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/*-
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* Copyright (C) 2012 Thomas Mohaupt <thomas.mohaupt@gmail.com>
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* 2010 Roland Wundrig <http://wundrig.de/>
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*
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* Some code parts are adapted from Roland Wundrig linux demo code
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* (part of usb4all package)
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*
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* This file is released under the GNU General Public License version 2.
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* Refer to the COPYING file distributed with this package.
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*/
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#ifndef HD_USB4ALL_H
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#define HD_USB4ALL_H
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#include "lcd.h" /* for Driver */
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/* vendor and product id */
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#define USB4ALL_VENDORID 0x004D8
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#define USB4ALL_PRODUCTID 0x0FF0B
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/* USB read/write timeouts */
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#define TIMEOUT_READ 1000
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#define TIMEOUT_WRITE 1000
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/* USB transfer modes */
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#define MODE_INT 0x04 /* usb interface : interrup mode */
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#define MODE_BULK 0x08 /* usb interface : bulk mode */
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#define USB4ALL_TX_MAX 64 /* usb4all tx buffer size */
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#define USB4ALL_RX_MAX 16 /* usb4all rx buffer size */
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/* assignment of PWM channels */
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#define USB4ALL_PWM_CONTRAST 0x01 /* PWM channel used for contrast */
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#define USB4ALL_PWM_BRIGHTNESS 0x02 /* PWM channel used for brightness */
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#define USB4ALL_RESET 0xFF
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/* initialise this particular driver */
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int hd_init_usb4all(Driver *drvthis);
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#endif
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