diff options
Diffstat (limited to 'nuttx/examples/hidkbd/hidkbd_main.c')
-rw-r--r-- | nuttx/examples/hidkbd/hidkbd_main.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/nuttx/examples/hidkbd/hidkbd_main.c b/nuttx/examples/hidkbd/hidkbd_main.c new file mode 100644 index 000000000..edcdcf375 --- /dev/null +++ b/nuttx/examples/hidkbd/hidkbd_main.c @@ -0,0 +1,172 @@ +/**************************************************************************** + * examples/hidkbd/null_main.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <stdio.h> +#include <unistd.h> +#include <sched.h> + +#include <nuttx/usb/usbhost.h> + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +#ifndef CONFIG_EXAMPLES_HIDKBD_DEFPRIO +# define CONFIG_EXAMPLES_HIDKBD_DEFPRIO 50 +#endif +#ifndef CONFIG_EXAMPLES_HIDKBD_STACKSIZE +# define CONFIG_EXAMPLES_HIDKBD_STACKSIZE 1024 +#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: user_initialize + ****************************************************************************/ + +void user_initialize(void) +{ +} + +/**************************************************************************** + * Name: user_start + ****************************************************************************/ + +int user_start(int argc, char *argv[]) +{ + pid_t pid; + int ret; + + /* First, register all of the USB host HID keyboard class driver */ + + printf("user_start: Register class drivers\n"); + ret = usbhost_storageinit(); + if (ret != OK) + { + printf("user_start: Failed to register the KBD class\n"); + } + + /* Then get an instance of the USB host interface */ + + printf("user_start: Initialize USB host keyboard driver\n"); + g_drvr = usbhost_initialize(0); + if (g_drvr) + { + /* Start a thread to handle device connection. */ + + printf("user_start: 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 (;;) + { + sleep(5); + printf("user_start: Still running...\n"); + } + } + return 0; +} |