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git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
2012-09-17 18:18:44 +00:00
commit 57623d42eb
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apps/examples/hidkbd/Kconfig
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#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config EXAMPLES_HIDKBD
bool "USB HID keyboard example"
default n
---help---
Enable the USB HID keyboard example
if EXAMPLES_HIDKBD
endif
apps/examples/hidkbd/Makefile
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############################################################################
# apps/examples/hidkbd/Makefile
#
# Copyright (C) 2011 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# 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 the above copyright
# notice, this list of conditions and the following disclaimer.
# 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. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "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
# COPYRIGHT OWNER 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.
#
############################################################################
-include $(TOPDIR)/.config
-include $(TOPDIR)/Make.defs
include $(APPDIR)/Make.defs
# USB Host HID keyboard Example
ASRCS =
CSRCS = hidkbd_main.c
AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))
SRCS = $(ASRCS) $(CSRCS)
OBJS = $(AOBJS) $(COBJS)
ifeq ($(WINTOOL),y)
BIN = "${shell cygpath -w $(APPDIR)/libapps$(LIBEXT)}"
else
BIN = "$(APPDIR)/libapps$(LIBEXT)"
endif
ROOTDEPPATH = --dep-path .
# Common build
VPATH =
all: .built
.PHONY: clean depend distclean
$(AOBJS): %$(OBJEXT): %.S
$(call ASSEMBLE, $<, $@)
$(COBJS): %$(OBJEXT): %.c
$(call COMPILE, $<, $@)
.built: $(OBJS)
@( for obj in $(OBJS) ; do \
$(call ARCHIVE, $(BIN), $${obj}); \
done ; )
@touch .built
context:
.depend: Makefile $(SRCS)
@$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
@touch $@
depend: .depend
clean:
@rm -f *.o *~ .*.swp .built
$(call CLEAN)
distclean: clean
@rm -f Make.dep .depend
-include Make.dep
apps/examples/hidkbd/hidkbd_main.c
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/****************************************************************************
* examples/hidkbd/null_main.c
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 the above copyright
* notice, this list of conditions and the following disclaimer.
* 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. Neither the name Gregory Nutt nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sched.h>
#include <errno.h>
#include <nuttx/usb/usbhost.h>
/****************************************************************************
* Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* Sanity checking */
#ifndef CONFIG_USBHOST
# error "CONFIG_USBHOST is not defined"
#endif
#ifdef CONFIG_USBHOST_INT_DISABLE
# error "Interrupt endpoints are disabled (CONFIG_USBHOST_INT_DISABLE)"
#endif
#ifndef CONFIG_NFILE_DESCRIPTORS
# error "CONFIG_NFILE_DESCRIPTORS > 0 needed"
#endif
/* Provide some default values for other configuration settings */
#ifndef CONFIG_EXAMPLES_HIDKBD_DEFPRIO
# define CONFIG_EXAMPLES_HIDKBD_DEFPRIO 50
#endif
#ifndef CONFIG_EXAMPLES_HIDKBD_STACKSIZE
# define CONFIG_EXAMPLES_HIDKBD_STACKSIZE 1024
#endif
#ifndef CONFIG_EXAMPLES_HIDKBD_DEVNAME
# define CONFIG_EXAMPLES_HIDKBD_DEVNAME "/dev/kbda"
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
static struct usbhost_driver_s *g_drvr;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: hidkbd_waiter
*
* Description:
* Wait for USB devices to be connected.
*
****************************************************************************/
static int hidkbd_waiter(int argc, char *argv[])
{
bool connected = false;
int ret;
printf("hidkbd_waiter: Running\n");
for (;;)
{
/* Wait for the device to change state */
ret = DRVR_WAIT(g_drvr, connected);
DEBUGASSERT(ret == OK);
connected = !connected;
printf("hidkbd_waiter: %s\n", connected ? "connected" : "disconnected");
/* Did we just become connected? */
if (connected)
{
/* Yes.. enumerate the newly connected device */
(void)DRVR_ENUMERATE(g_drvr);
}
}
/* Keep the compiler from complaining */
return 0;
}
/****************************************************************************
* Name: hidkbd_main
****************************************************************************/
int hidkbd_main(int argc, char *argv[])
{
char buffer[256];
pid_t pid;
ssize_t nbytes;
int fd;
int ret;
/* First, register all of the USB host HID keyboard class driver */
printf("hidkbd_main: Register class drivers\n");
ret = usbhost_kbdinit();
if (ret != OK)
{
printf("hidkbd_main: Failed to register the KBD class\n");
}
/* Then get an instance of the USB host interface */
printf("hidkbd_main: Initialize USB host keyboard driver\n");
g_drvr = usbhost_initialize(0);
if (g_drvr)
{
/* Start a thread to handle device connection. */
printf("hidkbd_main: Start hidkbd_waiter\n");
#ifndef CONFIG_CUSTOM_STACK
pid = task_create("usbhost", CONFIG_EXAMPLES_HIDKBD_DEFPRIO,
CONFIG_EXAMPLES_HIDKBD_STACKSIZE,
(main_t)hidkbd_waiter, (const char **)NULL);
#else
pid = task_create("usbhost", CONFIG_EXAMPLES_HIDKBD_DEFPRIO,
(main_t)hidkbd_waiter, (const char **)NULL);
#endif
/* Now just sleep. Eventually logic here will open the kbd device and
* perform the HID keyboard test.
*/
for (;;)
{
/* Open the keyboard device. Loop until the device is successfully
* opened.
*/
do
{
printf("Opening device %s\n", CONFIG_EXAMPLES_HIDKBD_DEVNAME);
fd = open(CONFIG_EXAMPLES_HIDKBD_DEVNAME, O_RDONLY);
if (fd < 0)
{
printf("Failed: %d\n", errno);
fflush(stdout);
sleep(3);
}
}
while (fd < 0);
printf("Device %s opened\n", CONFIG_EXAMPLES_HIDKBD_DEVNAME);
fflush(stdout);
/* Loop until there is a read failure */
do
{
/* Read a buffer of data */
nbytes = read(fd, buffer, 256);
if (nbytes > 0)
{
/* On success, echo the buffer to stdout */
(void)write(1, buffer, nbytes);
}
}
while (nbytes >= 0);
printf("Closing device %s: %d\n", CONFIG_EXAMPLES_HIDKBD_DEVNAME, (int)nbytes);
fflush(stdout);
close(fd);
}
}
return 0;
}