/**************************************************************************** * examples/nxterm/nxterm_main.c * * Copyright (C) 2012, 2016-2017 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_NX_LCDDRIVER # include #else # include # ifdef CONFIG_VNCSERVER # include # endif #endif #include #include #include #include #include "platform/cxxinitialize.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 /* If Telnet is used and both IPv6 and IPv4 are enabled, then we need to * pick one. */ #ifdef CONFIG_NET_IPv6 # define ADDR_FAMILY AF_INET6 #else # define ADDR_FAMILY AF_INET #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 */ ret = vnc_default_fbinitialize(0, g_nxterm_vars.hnx); if (ret < 0) { printf("vnc_default_fbinitialize failed: %d\n", ret); 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. */ (void)pthread_attr_init(&attr); param.sched_priority = CONFIG_EXAMPLES_NXTERM_LISTENERPRIO; (void)pthread_attr_setschedparam(&attr, ¶m); (void)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. */ (void)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 (void)nsh_consolemain(0, NULL); #endif printf("nxterm_task: Unregister the NX console device\n"); (void)nxterm_unregister(g_nxterm_vars.hdrvr); printf("nxterm_task: Close the window\n"); (void)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 ****************************************************************************/ #ifdef BUILD_MODULE int main(int argc, FAR char *argv[]) #else int nxterm_main(int argc, char **argv) #endif { 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)); /* Call all C++ static constructors */ #if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE) up_cxxinitialize(); #endif /* 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(ADDR_FAMILY); 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, &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) { (void)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; g_nxterm_vars.hdrvr = nxtk_register(g_nxterm_vars.hwnd, &g_nxterm_vars.wndo, CONFIG_EXAMPLES_NXTERM_MINOR); if (!g_nxterm_vars.hdrvr) { printf("nxterm_main: nxtk_register failed: %d\n", errno); goto errout_with_hwnd; } /* 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); (void)fflush(stdout); (void)fflush(stderr); (void)fclose(stdout); (void)fclose(stderr); (void)dup2(fd, 1); (void)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: (void)nxterm_unregister(g_nxterm_vars.hdrvr); errout_with_hwnd: (void)nxtk_closewindow(g_nxterm_vars.hwnd); errout_with_nx: /* Disconnect from the server */ nx_disconnect(g_nxterm_vars.hnx); errout: return EXIT_FAILURE; }