hd44780: Added 'usbtiny' connection type (by Siarhei Herasimchuk).
This commit is contained in:
mmdolze
@@ -84,7 +84,7 @@ g15_SOURCES = lcd.h lcd_lib.h g15.h g15-num.c g15.c report.h
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glcdlib_SOURCES = lcd.h lcd_lib.h glcdlib.h glcdlib.c report.h
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glk_SOURCES = lcd.h glk.c glk.h glkproto.c glkproto.h report.h
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hd44780_SOURCES = lcd.h lcd_lib.h hd44780.h hd44780.c hd44780-drivers.h hd44780-low.h hd44780-charmap.h report.h adv_bignum.h
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EXTRA_hd44780_SOURCES = hd44780-4bit.c hd44780-4bit.h hd44780-ext8bit.c hd44780-ext8bit.h lcd_sem.c lcd_sem.h hd44780-serialLpt.c hd44780-serialLpt.h hd44780-serial.c hd44780-serial.h hd44780-winamp.c hd44780-winamp.h hd44780-bwct-usb.c hd44780-bwct-usb.h hd44780-lcd2usb.c hd44780-lcd2usb.h hd44780-lis2.c hd44780-lis2.h hd44780-i2c.c hd44780-i2c.h hd44780-ftdi.c hd44780-ftdi.h hd44780-ethlcd.c hd44780-ethlcd.h hd44780-uss720.c hd44780-uss720.h hd44780-usblcd.c hd44780-usblcd.h port.h lpt-port.h timing.h
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EXTRA_hd44780_SOURCES = hd44780-4bit.c hd44780-4bit.h hd44780-ext8bit.c hd44780-ext8bit.h lcd_sem.c lcd_sem.h hd44780-serialLpt.c hd44780-serialLpt.h hd44780-serial.c hd44780-serial.h hd44780-winamp.c hd44780-winamp.h hd44780-bwct-usb.c hd44780-bwct-usb.h hd44780-lcd2usb.c hd44780-lcd2usb.h hd44780-usbtiny.c hd44780-usbtiny.h hd44780-lis2.c hd44780-lis2.h hd44780-i2c.c hd44780-i2c.h hd44780-ftdi.c hd44780-ftdi.h hd44780-ethlcd.c hd44780-ethlcd.h hd44780-uss720.c hd44780-uss720.h hd44780-usblcd.c hd44780-usblcd.h port.h lpt-port.h timing.h
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i2500vfd_SOURCES = lcd.h i2500vfd.c i2500vfd.h i2500vfdfm.c i2500vfdfm.h report.h
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icp_a106_SOURCES = lcd.h lcd_lib.h icp_a106.c icp_a106.h report.h
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imon_SOURCES = lcd.h lcd_lib.h imon.h imon.c report.h
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@@ -22,6 +22,7 @@
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#ifdef HAVE_LIBUSB
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# include "hd44780-bwct-usb.h"
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# include "hd44780-lcd2usb.h"
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# include "hd44780-usbtiny.h"
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# include "hd44780-uss720.h"
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#endif
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#ifdef HAVE_LIBFTDI
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@@ -65,6 +66,7 @@ static const ConnectionMapping connectionMapping[] = {
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#ifdef HAVE_LIBUSB
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{ "bwctusb", HD44780_CT_BWCTUSB, IF_TYPE_USB, hd_init_bwct_usb },
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{ "lcd2usb", HD44780_CT_LCD2USB, IF_TYPE_USB, hd_init_lcd2usb },
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{ "usbtiny", HD44780_CT_USBTINY, IF_TYPE_USB, hd_init_usbtiny },
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{ "uss720", HD44780_CT_USS720, IF_TYPE_USB, hd_init_uss720 },
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#endif
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#ifdef HAVE_LIBFTDI
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@@ -50,6 +50,7 @@
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#define HD44780_CT_ETHLCD 17
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#define HD44780_CT_USS720 18
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#define HD44780_CT_USBLCD 19
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#define HD44780_CT_USBTINY 20
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// symbolic names for interface types
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#define IF_TYPE_UNKNOWN 0
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@@ -0,0 +1,139 @@
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/** \file server/drivers/hd44780-usbtiny.c
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* \c USBtiny connection type of \c hd44780 driver for Hitachi HD44780 based LCD displays.
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*
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* http://www.xs4all.nl/~dicks/avr/usbtiny/
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*/
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/*-
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* Copyright (C) 2007 Peter Marschall <peter@adpm.de>
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* 2010 Siarhei Herasimchuk <sergby@tut.by>
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*
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* This file is released under the GNU General Public License.
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* Refer to the COPYING file distributed with this package.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <usb.h>
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#include "hd44780-usbtiny.h"
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#include "report.h"
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/* connection type specific functions to be exposed using pointers in init() */
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void usbtiny_HD44780_senddata(PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch);
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void usbtiny_HD44780_close(PrivateData *p);
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/**
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* Pseudo (empty) uPause function.
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* Override the uPause function as a usbtiny device takes care of timing itself.
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* \param p Pointer to PrivateData structure (unused)
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* \param usecs Number of micro-seconds to sleep (ignored)
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*/
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void
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usbtiny_HD44780_uPause(PrivateData *p, int usecs)
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{
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}
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/**
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* Initialize the driver.
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* \param drvthis Pointer to driver structure.
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* \retval 0 Success.
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* \retval -1 Error.
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*/
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int
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hd_init_usbtiny(Driver *drvthis)
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{
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PrivateData *p = (PrivateData *) drvthis->private_data;
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struct usb_bus *bus;
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p->hd44780_functions->senddata = usbtiny_HD44780_senddata;
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p->hd44780_functions->close = usbtiny_HD44780_close;
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/* try to find USB device */
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usb_init();
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usb_find_busses();
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usb_find_devices();
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p->usbHandle = NULL;
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for (bus = usb_get_busses(); bus != NULL; bus = bus->next) {
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struct usb_device *dev;
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for (dev = bus->devices; dev != NULL; dev = dev->next) {
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/* Check if this device is a usbtiny device */
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if ((dev->descriptor.idVendor == USBTINY_VENDORID) &&
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(dev->descriptor.idProduct == USBTINY_PRODUCTID)) {
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/* USBtiny device found; try to open it */
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p->usbHandle = usb_open(dev);
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if (p->usbHandle == NULL) {
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report(RPT_WARNING, "hd_init_usbtiny: unable to open device");
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/*
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* Do not exit here because other
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* (possibly working) devices may be
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* connected.
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*/
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}
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else {
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report(RPT_INFO, "hd_init_usbtiny: USBtiny device found");
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}
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}
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}
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}
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/* No device found at all */
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if (p->usbHandle == NULL) {
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report(RPT_ERR, "hd_init_usbtiny: no (matching) USBtiny device found");
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return -1;
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}
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common_init(p, IF_4BIT);
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/* replace uPause with empty one after initialization */
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p->hd44780_functions->uPause = usbtiny_HD44780_uPause;
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return 0;
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}
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/**
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* Send data or commands to the display.
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* \param p Pointer to driver's private data structure.
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* \param displayID ID of the display (or 0 for all) to send data to.
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* \param flags Defines whether to end a command or data.
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* \param ch The value to send.
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*/
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void
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usbtiny_HD44780_senddata(PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch)
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{
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int type = (flags == RS_DATA) ? USBTINY_DATA : USBTINY_INSTR;
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char buffer[1];
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buffer[0] = (char) ch;
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usb_control_msg(p->usbHandle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT, type, 0, 0, buffer, 1, 1000);
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}
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/**
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* Close the driver (do necessary clean-up).
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* \param p Pointer to driver's private data structure.
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*/
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void
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usbtiny_HD44780_close(PrivateData *p)
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{
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if (p->usbHandle != NULL) {
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usb_close(p->usbHandle);
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p->usbHandle = NULL;
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}
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}
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/* EOF */
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@@ -0,0 +1,19 @@
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#ifndef HD_USBTINY_H
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#define HD_USBTINY_H
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#include "lcd.h" /* for Driver */
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#include "hd44780-low.h"
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/* vendor and product id */
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#define USBTINY_VENDORID 0x03EB
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#define USBTINY_PRODUCTID 0x0002
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/* Protocole IR/LCD */
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#define USBTINY_INSTR 20
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#define USBTINY_DATA 21
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/* initialise this particular driver */
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int hd_init_usbtiny(Driver *drvthis);
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#endif
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