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- /****************************************************************************
- * apps/examples/nxterm/nxterm_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 <stdint.h>
- #include <stdbool.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <fcntl.h>
- #include <string.h>
- #include <assert.h>
- #include <errno.h>
- #include <debug.h>
- #ifdef CONFIG_NX_LCDDRIVER
- # include <nuttx/lcd/lcd.h>
- #else
- # include <nuttx/video/fb.h>
- #endif
- #include <nuttx/nx/nx.h>
- #include <nuttx/nx/nxglib.h>
- #include <nuttx/nx/nxfonts.h>
- #include <nuttx/nx/nxterm.h>
- #include "nshlib/nshlib.h"
- #include "nxterm_internal.h"
- /****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
- /* The NSH telnet console requires networking support (and TCP/IP) */
- #ifndef CONFIG_NET
- # undef CONFIG_NSH_TELNET
- #endif
- /****************************************************************************
- * Public Data
- ****************************************************************************/
- /* All example global variables are retained in a structure to minimize
- * the chance of name collisions.
- */
- struct nxterm_state_s g_nxterm_vars;
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: nxterm_initialize
- ****************************************************************************/
- static int nxterm_initialize(void)
- {
- struct sched_param param;
- pthread_t thread;
- int ret;
- /* Set the client task priority */
- param.sched_priority = CONFIG_EXAMPLES_NXTERM_CLIENTPRIO;
- ret = sched_setparam(0, ¶m);
- if (ret < 0)
- {
- printf("nxterm_initialize: sched_setparam failed: %d\n" , ret);
- return ERROR;
- }
- /* Start the NX server kernel thread */
- ret = boardctl(BOARDIOC_NX_START, 0);
- if (ret < 0)
- {
- printf("nxterm_initialize: Failed to start the NX server: %d\n",
- errno);
- return ERROR;
- }
- /* Connect to the server */
- g_nxterm_vars.hnx = nx_connect();
- if (g_nxterm_vars.hnx)
- {
- pthread_attr_t attr;
- #ifdef CONFIG_VNCSERVER
- /* Setup the VNC server to support keyboard/mouse inputs */
- struct boardioc_vncstart_s vnc =
- {
- 0, g_nxterm_vars.hnx
- };
- ret = boardctl(BOARDIOC_VNC_START, (uintptr_t)&vnc);
- if (ret < 0)
- {
- printf("boardctl(BOARDIOC_VNC_START) failed: %d\n", ret);
- nx_disconnect(g_nxterm_vars.hnx);
- return ERROR;
- }
- #endif
- /* Start a separate thread to listen for server events. This is
- * probably the least efficient way to do this, but it makes this
- * example flow more smoothly.
- */
- pthread_attr_init(&attr);
- param.sched_priority = CONFIG_EXAMPLES_NXTERM_LISTENERPRIO;
- pthread_attr_setschedparam(&attr, ¶m);
- pthread_attr_setstacksize(&attr, CONFIG_EXAMPLES_NXTERM_STACKSIZE);
- ret = pthread_create(&thread, &attr, nxterm_listener, NULL);
- if (ret != 0)
- {
- printf("nxterm_initialize: pthread_create failed: %d\n", ret);
- return ERROR;
- }
- /* Don't return until we are connected to the server */
- while (!g_nxterm_vars.connected)
- {
- /* Wait for the listener thread to wake us up when we really
- * are connected.
- */
- sem_wait(&g_nxterm_vars.eventsem);
- }
- }
- else
- {
- printf("nxterm_initialize: nx_connect failed: %d\n", errno);
- return ERROR;
- }
- return OK;
- }
- /****************************************************************************
- * Name: nxterm_task
- ****************************************************************************/
- static int nxterm_task(int argc, char **argv)
- {
- /* If the console front end is selected, then run it on this thread */
- #ifdef CONFIG_NSH_CONSOLE
- nsh_consolemain(argc, argv);
- #endif
- printf("nxterm_task: Unlinking the NX console device\n");
- unlink(CONFIG_EXAMPLES_NXTERM_DEVNAME);
- printf("nxterm_task: Close the window\n");
- nxtk_closewindow(g_nxterm_vars.hwnd);
- /* Disconnect from the server */
- printf("nxterm_task: Disconnect from the server\n");
- nx_disconnect(g_nxterm_vars.hnx);
- return EXIT_SUCCESS;
- }
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: nxterm_main
- ****************************************************************************/
- int main(int argc, FAR char *argv[])
- {
- struct boardioc_nxterm_create_s nxcreate;
- nxgl_mxpixel_t color;
- int fd;
- int ret;
- /* General Initialization *************************************************/
- /* Reset all global data */
- printf("nxterm_main: Started\n");
- memset(&g_nxterm_vars, 0, sizeof(struct nxterm_state_s));
- /* NSH Initialization *****************************************************/
- /* Initialize the NSH library */
- printf("nxterm_main: Initialize NSH\n");
- nsh_initialize();
- /* If the Telnet console is selected as a front-end, then start the
- * Telnet daemon.
- */
- #ifdef CONFIG_NSH_TELNET
- ret = nsh_telnetstart(AF_UNSPEC);
- if (ret < 0)
- {
- /* The daemon is NOT running. Report the error then fail...
- * either with the serial console up or just exiting.
- */
- fprintf(stderr, "ERROR: Failed to start TELNET daemon: %d\n", ret);
- }
- #endif
- /* NX Initialization ******************************************************/
- /* Initialize NX */
- printf("nxterm_main: Initialize NX\n");
- ret = nxterm_initialize();
- printf("nxterm_main: NX handle=%p\n", g_nxterm_vars.hnx);
- if (!g_nxterm_vars.hnx || ret < 0)
- {
- printf("nxterm_main: Failed to get NX handle: %d\n", errno);
- goto errout;
- }
- /* Set the background to the configured background color */
- printf("nxterm_main: Set background color=%d\n",
- CONFIG_EXAMPLES_NXTERM_BGCOLOR);
- color = CONFIG_EXAMPLES_NXTERM_BGCOLOR;
- ret = nx_setbgcolor(g_nxterm_vars.hnx, &color);
- if (ret < 0)
- {
- printf("nxterm_main: nx_setbgcolor failed: %d\n", errno);
- goto errout_with_nx;
- }
- /* Window Configuration ***************************************************/
- /* Create a window */
- printf("nxterm_main: Create window\n");
- g_nxterm_vars.hwnd = nxtk_openwindow(g_nxterm_vars.hnx, 0, &g_nxtermcb,
- NULL);
- if (!g_nxterm_vars.hwnd)
- {
- printf("nxterm_main: nxtk_openwindow failed: %d\n", errno);
- goto errout_with_nx;
- }
- printf("nxterm_main: hwnd=%p\n", g_nxterm_vars.hwnd);
- /* Wait until we have the screen resolution. */
- while (!g_nxterm_vars.haveres)
- {
- sem_wait(&g_nxterm_vars.eventsem);
- }
- printf("nxterm_main: Screen resolution (%d,%d)\n",
- g_nxterm_vars.xres, g_nxterm_vars.yres);
- /* Determine the size and position of the window */
- g_nxterm_vars.wndo.wsize.w = g_nxterm_vars.xres / 2 +
- g_nxterm_vars.xres / 4;
- g_nxterm_vars.wndo.wsize.h = g_nxterm_vars.yres / 2 +
- g_nxterm_vars.yres / 4;
- g_nxterm_vars.wpos.x = g_nxterm_vars.xres / 8;
- g_nxterm_vars.wpos.y = g_nxterm_vars.yres / 8;
- /* Set the window position */
- printf("nxterm_main: Set window position to (%d,%d)\n",
- g_nxterm_vars.wpos.x, g_nxterm_vars.wpos.y);
- ret = nxtk_setposition(g_nxterm_vars.hwnd, &g_nxterm_vars.wpos);
- if (ret < 0)
- {
- printf("nxterm_main: nxtk_setposition failed: %d\n", errno);
- goto errout_with_hwnd;
- }
- /* Set the window size */
- printf("nxterm_main: Set window size to (%d,%d)\n",
- g_nxterm_vars.wndo.wsize.w, g_nxterm_vars.wndo.wsize.h);
- ret = nxtk_setsize(g_nxterm_vars.hwnd, &g_nxterm_vars.wndo.wsize);
- if (ret < 0)
- {
- printf("nxterm_main: nxtk_setsize failed: %d\n", errno);
- goto errout_with_hwnd;
- }
- /* Open the toolbar */
- printf("nxterm_main: Add toolbar to window\n");
- ret = nxtk_opentoolbar(g_nxterm_vars.hwnd,
- CONFIG_EXAMPLES_NXTERM_TOOLBAR_HEIGHT,
- &g_nxtoolcb, NULL);
- if (ret < 0)
- {
- printf("nxterm_main: nxtk_opentoolbar failed: %d\n", errno);
- goto errout_with_hwnd;
- }
- /* Sleep a little bit to allow the server to catch up */
- sleep(2);
- /* NxTerm Configuration ***************************************************/
- /* Use the window to create an NX console */
- g_nxterm_vars.wndo.wcolor[0] = CONFIG_EXAMPLES_NXTERM_WCOLOR;
- g_nxterm_vars.wndo.fcolor[0] = CONFIG_EXAMPLES_NXTERM_FONTCOLOR;
- g_nxterm_vars.wndo.fontid = CONFIG_EXAMPLES_NXTERM_FONTID;
- nxcreate.nxterm = NULL;
- nxcreate.hwnd = g_nxterm_vars.hwnd;
- nxcreate.wndo = g_nxterm_vars.wndo;
- nxcreate.type = BOARDIOC_XTERM_FRAMED;
- nxcreate.minor = CONFIG_EXAMPLES_NXTERM_MINOR;
- /* BOARDIOC_NXTERM wants the size of the NxTK main sub-window */
- nxcreate.wndo.wsize.w -= (2 * CONFIG_NXTK_BORDERWIDTH);
- nxcreate.wndo.wsize.h -= (CONFIG_EXAMPLES_NXTERM_TOOLBAR_HEIGHT +
- 2 * CONFIG_NXTK_BORDERWIDTH);
- ret = boardctl(BOARDIOC_NXTERM, (uintptr_t)&nxcreate);
- if (ret < 0)
- {
- printf("nxterm_main: boardctl(BOARDIOC_NXTERM) failed: %d\n", errno);
- goto errout_with_hwnd;
- }
- g_nxterm_vars.hdrvr = nxcreate.nxterm;
- DEBUGASSERT(g_nxterm_vars.hdrvr != NULL);
- /* Open the NxTerm driver */
- fd = open(CONFIG_EXAMPLES_NXTERM_DEVNAME, O_WRONLY);
- if (fd < 0)
- {
- printf("nxterm_main: open %s read-only failed: %d\n",
- CONFIG_EXAMPLES_NXTERM_DEVNAME, errno);
- goto errout_with_driver;
- }
- /* Start Console Task *****************************************************/
- /* Now re-direct stdout and stderr so that they use the NX console driver.
- * Note that stdin is retained (file descriptor 0, probably the serial
- * console).
- */
- printf("nxterm_main: Starting the console task\n");
- fflush(stdout);
- fflush(stderr);
- dup2(fd, 1);
- dup2(fd, 2);
- /* And we can close our original driver file descriptor */
- close(fd);
- /* And start the console task. It will inherit stdin, stdout, and stderr
- * from this task.
- */
- g_nxterm_vars.pid = task_create("NxTerm", CONFIG_EXAMPLES_NXTERM_PRIO,
- CONFIG_EXAMPLES_NXTERM_STACKSIZE,
- nxterm_task, NULL);
- DEBUGASSERT(g_nxterm_vars.pid > 0);
- return EXIT_SUCCESS;
- /* Error Exits ************************************************************/
- errout_with_driver:
- unlink(CONFIG_EXAMPLES_NXTERM_DEVNAME);
- errout_with_hwnd:
- nxtk_closewindow(g_nxterm_vars.hwnd);
- errout_with_nx:
- /* Disconnect from the server */
- nx_disconnect(g_nxterm_vars.hnx);
- errout:
- return EXIT_FAILURE;
- }
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