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package/lcd4linux: add driver for the LCD of the TEW-673GRU board

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git-svn-id: svn://svn.openwrt.org/openwrt/packages@30381 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2012-02-08 16:39:20 +00:00
parent 6a681f394e
commit f52c927a65
5 changed files with 896 additions and 2 deletions
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289
utils/lcd4linux/patches/170-add-generic-spidev-driver.patch Normal file
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@ -0,0 +1,289 @@
--- a/Makefile.am
+++ b/Makefile.am
@@ -71,6 +71,8 @@ drv_generic_i2c.c \
drv_generic_i2c.h \
drv_generic_keypad.c \
drv_generic_keypad.h \
+drv_generic_spidev.c \
+drv_generic_spidev.h \
drv_ASTUSB.c \
drv_BeckmannEgle.c \
drv_BWCT.c \
--- /dev/null
+++ b/drv_generic_spidev.c
@@ -0,0 +1,89 @@
+/* $Id$
+ * $URL$
+ *
+ * generic driver helper for displays connected via SPI bus
+ *
+ * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux 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, or (at your option)
+ * any later version.
+ *
+ * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include "debug.h"
+#include "qprintf.h"
+#include "cfg.h"
+#include "drv_generic_spidev.h"
+
+static char *generic_spidev_section = "";
+static char *generic_spidev_driver = "";
+static int generic_spidev_fd;
+
+int drv_generic_spidev_open(const char *section, const char *driver)
+{
+ char *spidev;
+
+ udelay_init();
+
+ generic_spidev_section = (char *) section;
+ generic_spidev_driver = (char *) driver;
+
+ spidev = cfg_get(generic_spidev_section, "Port", NULL);
+
+ info("%s: initializing SPI device %s", generic_spidev_driver, spidev);
+ generic_spidev_fd = open(spidev, O_WRONLY);
+ if (generic_spidev_fd < 0) {
+ error("%s: unable to open SPI device %s!\n", generic_spidev_driver, spidev);
+ goto exit_error;
+ }
+
+ return 0;
+
+ exit_error:
+ free(spidev);
+ return -1;
+}
+
+int drv_generic_spidev_close(void)
+{
+ close(generic_spidev_fd);
+ return 0;
+}
+
+int drv_generic_spidev_transfer(const int count, struct spi_ioc_transfer *tr)
+{
+ int ret;
+
+ ret = ioctl(generic_spidev_fd, SPI_IOC_MESSAGE(count), tr);
+ if (ret < count) {
+ error("%s: can't send SPI message! (%s)\n",
+ generic_spidev_driver, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
--- /dev/null
+++ b/drv_generic_spidev.h
@@ -0,0 +1,54 @@
+/* $Id$
+ * $URL$
+ *
+ * generic driver helper for displays connected via SPI bus
+ *
+ * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2012 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux 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, or (at your option)
+ * any later version.
+ *
+ * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*
+ *
+ * exported fuctions:
+ *
+ * int drv_generic_spidev_open (const char *section, const char *driver)
+ * reads 'Port' entry from config and opens
+ * the SPI device
+ * returns 0 if ok, -1 on failure
+ *
+ * int drv_generic_spidev_close (void)
+ * closes SPI device
+ * returns 0 if ok, -1 on failure
+ *
+ * void drv_generic_spidev_transfer (int count, struct spi_ioc_transfer *tr)
+ * transfer data to/from the SPI device
+ *
+ */
+
+#ifndef _DRV_GENERIC_SPIDEV_H_
+#define _DRV_GENERIC_SPIDEV_H_
+
+#include <linux/spi/spidev.h>
+
+int drv_generic_spidev_open(const char *section, const char *driver);
+int drv_generic_spidev_close(void);
+int drv_generic_spidev_transfer(const int count, struct spi_ioc_transfer *tr);
+
+#endif /* _DRV_GENERIC_SPIDEV_H_ */
--- a/drivers.m4
+++ b/drivers.m4
@@ -232,9 +232,9 @@ for driver in $drivers; do
serdisplib)
SERDISPLIB=$val;
;;
- ShuttleVFD)
+ ShuttleVFD)
SHUTTLEVFD=$val
- ;;
+ ;;
SimpleLCD)
SIMPLELCD=$val
;;
@@ -285,6 +285,7 @@ PARPORT="no"
SERIAL="no"
I2C="no"
KEYPAD="no"
+SPIDEV="no"
# generic libraries
LIBUSB="no"
@@ -544,17 +545,17 @@ if test "$MATRIXORBITALGX" = "yes"; then
fi
fi
-if test "$MDM166A" = "yes"; then
- if test "$has_usb10" = "true"; then
+if test "$MDM166A" = "yes"; then
+ if test "$has_usb10" = "true"; then
GRAPHIC="yes"
- DRIVERS="$DRIVERS drv_mdm166a.o"
- GPIO="yes"
+ DRIVERS="$DRIVERS drv_mdm166a.o"
+ GPIO="yes"
LIBUSB10="yes"
- AC_DEFINE(WITH_MDM166A,1,[MDM166A driver])
- else
- AC_MSG_WARN(libusb-1.0/libusb.h not found: MDM166A driver disabled)
- fi
-fi
+ AC_DEFINE(WITH_MDM166A,1,[MDM166A driver])
+ else
+ AC_MSG_WARN(libusb-1.0/libusb.h not found: MDM166A driver disabled)
+ fi
+fi
if test "$MILINST" = "yes"; then
TEXT="yes"
@@ -630,7 +631,7 @@ if test "$PICOLCDGRAPHIC" = "yes"; then
if test "$has_usb" = "true"; then
TEXT="yes"
GRAPHIC="yes"
- KEYPAD="yes"
+ KEYPAD="yes"
GPIO="yes"
SERIAL="yes"
LIBUSB="yes"
@@ -698,17 +699,17 @@ if test "$SERDISPLIB" = "yes"; then
fi
fi
-if test "$SHUTTLEVFD" = "yes"; then
- if test "$has_usb" = "true"; then
- TEXT="yes"
- GPIO="yes"
- DRIVERS="$DRIVERS drv_ShuttleVFD.o"
- LIBUSB="yes"
- AC_DEFINE(WITH_SHUTTLEVFD,1,[ShuttleVFD driver])
- else
- AC_MSG_WARN(usb.h not found: ShuttleVFD driver disabled)
- fi
-fi
+if test "$SHUTTLEVFD" = "yes"; then
+ if test "$has_usb" = "true"; then
+ TEXT="yes"
+ GPIO="yes"
+ DRIVERS="$DRIVERS drv_ShuttleVFD.o"
+ LIBUSB="yes"
+ AC_DEFINE(WITH_SHUTTLEVFD,1,[ShuttleVFD driver])
+ else
+ AC_MSG_WARN(usb.h not found: ShuttleVFD driver disabled)
+ fi
+fi
if test "$SIMPLELCD" = "yes"; then
TEXT="yes"
@@ -786,7 +787,7 @@ fi
if test "$VNC" = "yes"; then
if test "$has_vncserverlib" = "true"; then
GRAPHIC="yes"
- KEYPAD="yes"
+ KEYPAD="yes"
DRIVERS="$DRIVERS drv_vnc.o"
DRVLIBS="$DRVLIBS -L/usr/local/lib -lvncserver -lz"
AC_DEFINE(WITH_VNC,1,[vnc driver])
@@ -874,6 +875,12 @@ if test "$KEYPAD" = "yes"; then
DRIVERS="$DRIVERS drv_generic_keypad.o"
fi
+# generic spidev driver
+if test "$SPIDEV" = "yes"; then
+ DRIVERS="$DRIVERS drv_generic_spidev.o"
+ AC_DEFINE(WITH_SPIDEV, 1, [SPIDEV driver])
+fi
+
# libusb
if test "$LIBUSB" = "yes"; then
DRVLIBS="$DRVLIBS -lusb"
@@ -892,6 +899,6 @@ fi
if test "$DRIVERS" = ""; then
AC_MSG_ERROR([You should include at least one driver...])
fi
-
+
AC_SUBST(DRIVERS)
AC_SUBST(DRVLIBS)
--- a/configure.in
+++ b/configure.in
@@ -108,6 +108,9 @@ fi
#AC_CHECK_HEADERS(asm/io.h)
AC_CHECK_HEADERS([asm/io.h] [linux/parport.h linux/ppdev.h], [has_parport="true"], [has_parport="false"])
+# check for spidev
+AC_CHECK_HEADERS([linux/spi/spidev.h], [has_spidev="true"], [has_spidev="false"])
+
# drivers
sinclude(drivers.m4)