nuttx-apps/system/cdcacm/cdcacm_main.c
Alin Jerpelea aa581fe5ce system: nxstyle fixes
fixes for errors reported by the nxstyle tool

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-11 02:42:05 -05:00

142 lines
4.2 KiB
C

/****************************************************************************
* apps/system/cdcacm/cdcacm_main.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/boardctl.h>
#include <stdio.h>
#include <debug.h>
#include <nuttx/usb/usbdev.h>
#include <nuttx/usb/cdcacm.h>
#include "cdcacm.h"
/****************************************************************************
* Private Data
****************************************************************************/
/* All global variables used by this add-on are packed into a structure in
* order to avoid name collisions.
*/
static struct cdcacm_state_s g_cdcacm;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* sercon_main
*
* Description:
* This is the main program that configures the CDC/ACM serial device.
*
****************************************************************************/
int main(int argc, FAR char *argv[])
{
struct boardioc_usbdev_ctrl_s ctrl;
int ret;
/* Check if there is a non-NULL USB mass storage device handle
* (meaning that the USB mass storage device is already configured).
*/
if (g_cdcacm.handle)
{
printf("sercon:: ERROR: Already connected\n");
return EXIT_FAILURE;
}
/* Then, in any event, enable trace data collection as configured BEFORE
* enabling the CDC/ACM device.
*/
usbtrace_enable(TRACE_BITSET);
/* Initialize the USB CDC/ACM serial driver */
printf("sercon: Registering CDC/ACM serial driver\n");
ctrl.usbdev = BOARDIOC_USBDEV_CDCACM;
ctrl.action = BOARDIOC_USBDEV_CONNECT;
ctrl.instance = CONFIG_SYSTEM_CDCACM_DEVMINOR;
ctrl.handle = &g_cdcacm.handle;
ret = boardctl(BOARDIOC_USBDEV_CONTROL, (uintptr_t)&ctrl);
if (ret < 0)
{
printf("sercon: ERROR: "
"Failed to create the CDC/ACM serial device: %d\n", -ret);
return EXIT_FAILURE;
}
printf("sercon: Successfully registered the CDC/ACM serial driver\n");
return EXIT_SUCCESS;
}
/****************************************************************************
* serdis_main
*
* Description:
* This is a program entry point that will disconnect the CDC/ACM serial
* device.
****************************************************************************/
int serdis_main(int argc, char *argv[])
{
struct boardioc_usbdev_ctrl_s ctrl;
/* First check if the USB mass storage device is already connected */
if (!g_cdcacm.handle)
{
printf("serdis: ERROR: Not connected\n");
return EXIT_FAILURE;
}
/* Then, in any event, disable trace data collection as configured BEFORE
* enabling the CDC/ACM device.
*/
usbtrace_enable(0);
/* Then disconnect the device and uninitialize the USB mass storage
* driver
*/
ctrl.usbdev = BOARDIOC_USBDEV_CDCACM;
ctrl.action = BOARDIOC_USBDEV_DISCONNECT;
ctrl.instance = CONFIG_SYSTEM_CDCACM_DEVMINOR;
ctrl.handle = &g_cdcacm.handle;
boardctl(BOARDIOC_USBDEV_CONTROL, (uintptr_t)&ctrl);
g_cdcacm.handle = NULL;
printf("serdis: Disconnected\n");
return EXIT_SUCCESS;
}