Add examples/wlan
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@3283 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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############################################################################
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# examples/wlan/Makefile
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#
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# Copyright (C) 2011 Gregory Nutt. All rights reserved.
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# Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
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# Rafael Noronha <rafael@pdsolucoes.com.br>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name NuttX nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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-include $(TOPDIR)/.config
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-include $(TOPDIR)/Make.defs
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ASRCS =
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AOBJS = $(ASRCS:.S=$(OBJEXT))
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CSRCS = wlan_main.c
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COBJS = $(CSRCS:.c=$(OBJEXT))
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SRCS = $(ASRCS) $(CSRCS)
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OBJS = $(AOBJS) $(COBJS)
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BIN = libapp$(LIBEXT)
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all: $(BIN)
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$(AOBJS): %$(OBJEXT): %.S
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$(call ASSEMBLE, $<, $@)
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$(COBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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$(BIN): $(OBJS)
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@( for obj in $(OBJS) ; do \
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$(call ARCHIVE, $@, $${obj}); \
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done ; )
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.depend: Makefile $(SRCS)
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@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
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@touch $@
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depend: .depend
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clean:
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@rm -f $(BIN) *~ .*.swp
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$(call CLEAN)
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distclean: clean
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@rm -f Make.dep .depend
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-include Make.dep
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/****************************************************************************
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* examples/wlan/wlan_main.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
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* Rafael Noronha <rafael@pdsolucoes.com.br>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sched.h>
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#include <errno.h>
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#include <nuttx/usb/usbhost.h>
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Sanity checking */
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#ifndef CONFIG_USBHOST
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# error "CONFIG_USBHOST is not defined"
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#endif
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#ifdef CONFIG_USBHOST_BULK_DISABLE
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# error "Bulk endpoints are disabled (CONFIG_USBHOST_BULK_DISABLE)"
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#endif
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#ifndef CONFIG_NFILE_DESCRIPTORS
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# error "CONFIG_NFILE_DESCRIPTORS > 0 needed"
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#endif
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/* Provide some default values for other configuration settings */
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#ifndef CONFIG_EXAMPLES_WLAN_DEFPRIO
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# define CONFIG_EXAMPLES_WLAN_DEFPRIO 50
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#endif
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#ifndef CONFIG_EXAMPLES_WLAN_STACKSIZE
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# define CONFIG_EXAMPLES_WLAN_STACKSIZE 1024
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#endif
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#ifndef CONFIG_EXAMPLES_WLAN_DEVNAME
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# define CONFIG_EXAMPLES_WLAN_DEVNAME "/dev/wlana"
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct usbhost_driver_s *g_drvr;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: wlan_waiter
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*
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* Description:
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* Wait for USB devices to be connected.
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*
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****************************************************************************/
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static int wlan_waiter(int argc, char *argv[])
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{
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bool connected = false;
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int ret;
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printf("wlan_waiter: Running\n");
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for (;;)
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{
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/* Wait for the device to change state */
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ret = DRVR_WAIT(g_drvr, connected);
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DEBUGASSERT(ret == OK);
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connected = !connected;
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printf("wlan_waiter: %s\n", connected ? "connected" : "disconnected");
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/* Did we just become connected? */
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if (connected)
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{
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/* Yes.. enumerate the newly connected device */
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(void)DRVR_ENUMERATE(g_drvr);
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}
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}
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/* Keep the compiler from complaining */
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return 0;
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}
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/****************************************************************************
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* Name: user_initialize
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****************************************************************************/
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void user_initialize(void)
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{
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}
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/****************************************************************************
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* Name: user_start
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****************************************************************************/
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int user_start(int argc, char *argv[])
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{
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char buffer[256];
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pid_t pid;
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ssize_t nbytes;
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int fd;
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int ret;
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/* First, register all of the USB host Wireless LAN drivers */
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printf("user_start: Register drivers\n");
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ret = usbhost_wlaninit();
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if (ret != OK)
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{
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printf("user_start: Failed to register the WLAN driver\n");
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}
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/* Then get an instance of the USB host interface */
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printf("user_start: Initialize USB host WLAN driver\n");
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g_drvr = usbhost_initialize(0);
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if (g_drvr)
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{
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/* Start a thread to handle device connection. */
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printf("user_start: Start hidkbd_waiter\n");
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#ifndef CONFIG_CUSTOM_STACK
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pid = task_create("usbhost", CONFIG_EXAMPLES_WLAN_DEFPRIO,
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CONFIG_EXAMPLES_WLAN_STACKSIZE,
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(main_t)wlan_waiter, (const char **)NULL);
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#else
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pid = task_create("usbhost", CONFIG_EXAMPLES_WLAN_DEFPRIO,
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(main_t)wlan_waiter, (const char **)NULL);
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#endif
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/* Now just sleep. Eventually logic here will open the WLAN device and
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* perform the device test.
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*/
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for (;;)
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{
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/* Open the WLAN device. Loop until the device is successfully
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* opened.
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*/
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do
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{
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printf("Opening device %s\n", CONFIG_EXAMPLES_WLAN_DEVNAME);
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fd = open(CONFIG_EXAMPLES_WLAN_DEVNAME, O_RDONLY);
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if (fd < 0)
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{
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printf("Failed: %d\n", errno);
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fflush(stdout);
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sleep(3);
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}
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}
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while (fd < 0);
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printf("Device %s opened\n", CONFIG_EXAMPLES_WLAN_DEVNAME);
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fflush(stdout);
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/* Loop until there is a read failure */
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do
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{
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/* Read a buffer of data */
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nbytes = read(fd, buffer, 256);
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if (nbytes > 0)
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{
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/* On success, echo the buffer to stdout */
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(void)write(1, buffer, nbytes);
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}
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}
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while (nbytes >= 0);
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printf("Closing device %s: %d\n", CONFIG_EXAMPLES_WLAN_DEVNAME, (int)nbytes);
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fflush(stdout);
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close(fd);
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}
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}
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return 0;
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}
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