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412 lines
12 KiB
412 lines
12 KiB
/**************************************************************************** |
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* examples/nxconsole/nxcon_main.c |
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* |
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* Copyright (C) 2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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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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/**************************************************************************** |
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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 <stdint.h> |
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#include <stdbool.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <debug.h> |
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#ifdef CONFIG_NX_LCDDRIVER |
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# include <nuttx/lcd/lcd.h> |
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#else |
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# include <nuttx/fb.h> |
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#endif |
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#include <nuttx/arch.h> |
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#include <nuttx/nx/nx.h> |
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#include <nuttx/nx/nxglib.h> |
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#include <nuttx/nx/nxfonts.h> |
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#include <nuttx/nx/nxconsole.h> |
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#include <apps/nsh.h> |
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#include "nxcon_internal.h" |
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/**************************************************************************** |
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* Pre-processor Definitions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Function Prototypes |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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/* All example global variables are retained in a structure to minimize |
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* the chance of name collisions. |
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*/ |
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struct nxcon_state_s g_nxcon_vars; |
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/**************************************************************************** |
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* Private Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: nxcon_initialize |
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****************************************************************************/ |
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static int nxcon_initialize(void) |
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{ |
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struct sched_param param; |
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pthread_t thread; |
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pid_t servrid; |
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int ret; |
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/* Set the client task priority */ |
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param.sched_priority = CONFIG_EXAMPLES_NXCON_CLIENTPRIO; |
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ret = sched_setparam(0, ¶m); |
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if (ret < 0) |
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{ |
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message("nxcon_initialize: sched_setparam failed: %d\n" , ret); |
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return ERROR; |
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} |
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/* Start the server task */ |
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message("nxcon_initialize: Starting nxcon_server task\n"); |
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servrid = task_create("NX Server", CONFIG_EXAMPLES_NXCON_SERVERPRIO, |
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CONFIG_EXAMPLES_NXCON_STACKSIZE, nxcon_server, NULL); |
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if (servrid < 0) |
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{ |
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message("nxcon_initialize: Failed to create nxcon_server task: %d\n", errno); |
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return ERROR; |
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} |
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/* Wait a bit to let the server get started */ |
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sleep(1); |
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/* Connect to the server */ |
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g_nxcon_vars.hnx = nx_connect(); |
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if (g_nxcon_vars.hnx) |
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{ |
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pthread_attr_t attr; |
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/* Start a separate thread to listen for server events. This is probably |
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* the least efficient way to do this, but it makes this example flow more |
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* smoothly. |
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*/ |
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(void)pthread_attr_init(&attr); |
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param.sched_priority = CONFIG_EXAMPLES_NXCON_LISTENERPRIO; |
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(void)pthread_attr_setschedparam(&attr, ¶m); |
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(void)pthread_attr_setstacksize(&attr, CONFIG_EXAMPLES_NXCON_STACKSIZE); |
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ret = pthread_create(&thread, &attr, nxcon_listener, NULL); |
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if (ret != 0) |
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{ |
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printf("nxcon_initialize: pthread_create failed: %d\n", ret); |
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return ERROR; |
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} |
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/* Don't return until we are connected to the server */ |
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while (!g_nxcon_vars.connected) |
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{ |
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/* Wait for the listener thread to wake us up when we really |
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* are connected. |
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*/ |
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(void)sem_wait(&g_nxcon_vars.eventsem); |
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} |
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} |
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else |
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{ |
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message("nxcon_initialize: nx_connect failed: %d\n", errno); |
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return ERROR; |
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} |
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return OK; |
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} |
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/**************************************************************************** |
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* Name: nxcon_task |
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****************************************************************************/ |
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static int nxcon_task(int argc, char **argv) |
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{ |
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/* If the console front end is selected, then run it on this thread */ |
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#ifdef CONFIG_NSH_CONSOLE |
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(void)nsh_consolemain(0, NULL); |
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#endif |
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printf("nxcon_task: Unregister the NX console device\n"); |
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(void)nxcon_unregister(g_nxcon_vars.hdrvr); |
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printf("nxcon_task: Close the window\n"); |
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(void)nxtk_closewindow(g_nxcon_vars.hwnd); |
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/* Disconnect from the server */ |
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printf("nxcon_task: Disconnect from the server\n"); |
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nx_disconnect(g_nxcon_vars.hnx); |
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return EXIT_SUCCESS; |
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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: nxcon_main |
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****************************************************************************/ |
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int nxcon_main(int argc, char **argv) |
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{ |
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nxgl_mxpixel_t color; |
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int fd; |
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int ret; |
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/* General Initialization *************************************************/ |
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/* Reset all global data */ |
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message("nxcon_main: Started\n"); |
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memset(&g_nxcon_vars, 0, sizeof(struct nxcon_state_s)); |
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/* Call all C++ static constructors */ |
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#if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE) |
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up_cxxinitialize(); |
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#endif |
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/* NSH Initialization *****************************************************/ |
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/* Initialize the NSH library */ |
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message("nxcon_main: Initialize NSH\n"); |
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nsh_initialize(); |
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/* If the Telnet console is selected as a front-end, then start the |
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* Telnet daemon. |
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*/ |
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#ifdef CONFIG_NSH_TELNET |
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ret = nsh_telnetstart(); |
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if (ret < 0) |
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{ |
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/* The daemon is NOT running. Report the the error then fail... |
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* either with the serial console up or just exiting. |
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*/ |
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fprintf(stderr, "ERROR: Failed to start TELNET daemon: %d\n", ret); |
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} |
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#endif |
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/* NX Initialization ******************************************************/ |
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/* Initialize NX */ |
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message("nxcon_main: Initialize NX\n"); |
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ret = nxcon_initialize(); |
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message("nxcon_main: NX handle=%p\n", g_nxcon_vars.hnx); |
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if (!g_nxcon_vars.hnx || ret < 0) |
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{ |
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message("nxcon_main: Failed to get NX handle: %d\n", errno); |
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goto errout; |
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} |
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/* Set the background to the configured background color */ |
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message("nxcon_main: Set background color=%d\n", CONFIG_EXAMPLES_NXCON_BGCOLOR); |
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color = CONFIG_EXAMPLES_NXCON_BGCOLOR; |
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ret = nx_setbgcolor(g_nxcon_vars.hnx, &color); |
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if (ret < 0) |
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{ |
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message("nxcon_main: nx_setbgcolor failed: %d\n", errno); |
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goto errout_with_nx; |
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} |
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/* Window Configuration ***************************************************/ |
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/* Create a window */ |
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message("nxcon_main: Create window\n"); |
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g_nxcon_vars.hwnd = nxtk_openwindow(g_nxcon_vars.hnx, &g_nxconcb, NULL); |
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if (!g_nxcon_vars.hwnd) |
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{ |
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message("nxcon_main: nxtk_openwindow failed: %d\n", errno); |
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goto errout_with_nx; |
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} |
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message("nxcon_main: hwnd=%p\n", g_nxcon_vars.hwnd); |
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/* Wait until we have the screen resolution. We'll have this immediately |
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* unless we are dealing with the NX server. |
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*/ |
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while (!g_nxcon_vars.haveres) |
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{ |
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(void)sem_wait(&g_nxcon_vars.eventsem); |
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} |
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message("nxcon_main: Screen resolution (%d,%d)\n", g_nxcon_vars.xres, g_nxcon_vars.yres); |
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/* Determine the size and position of the window */ |
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g_nxcon_vars.wndo.wsize.w = g_nxcon_vars.xres / 2 + g_nxcon_vars.xres / 4; |
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g_nxcon_vars.wndo.wsize.h = g_nxcon_vars.yres / 2 + g_nxcon_vars.yres / 4; |
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g_nxcon_vars.wpos.x = g_nxcon_vars.xres / 8; |
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g_nxcon_vars.wpos.y = g_nxcon_vars.yres / 8; |
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/* Set the window position */ |
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message("nxcon_main: Set window position to (%d,%d)\n", |
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g_nxcon_vars.wpos.x, g_nxcon_vars.wpos.y); |
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ret = nxtk_setposition(g_nxcon_vars.hwnd, &g_nxcon_vars.wpos); |
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if (ret < 0) |
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{ |
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message("nxcon_main: nxtk_setposition failed: %d\n", errno); |
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goto errout_with_hwnd; |
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} |
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/* Set the window size */ |
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message("nxcon_main: Set window size to (%d,%d)\n", |
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g_nxcon_vars.wndo.wsize.w, g_nxcon_vars.wndo.wsize.h); |
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ret = nxtk_setsize(g_nxcon_vars.hwnd, &g_nxcon_vars.wndo.wsize); |
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if (ret < 0) |
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{ |
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message("nxcon_main: nxtk_setsize failed: %d\n", errno); |
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goto errout_with_hwnd; |
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} |
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/* Open the toolbar */ |
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message("nxcon_main: Add toolbar to window\n"); |
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ret = nxtk_opentoolbar(g_nxcon_vars.hwnd, CONFIG_EXAMPLES_NXCON_TOOLBAR_HEIGHT, &g_nxtoolcb, NULL); |
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if (ret < 0) |
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{ |
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message("nxcon_main: nxtk_opentoolbar failed: %d\n", errno); |
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goto errout_with_hwnd; |
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} |
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/* Sleep a little bit to allow the server to catch up */ |
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sleep(2); |
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/* NxConsole Configuration ************************************************/ |
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/* Use the window to create an NX console */ |
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g_nxcon_vars.wndo.wcolor[0] = CONFIG_EXAMPLES_NXCON_WCOLOR; |
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g_nxcon_vars.wndo.fcolor[0] = CONFIG_EXAMPLES_NXCON_FONTCOLOR; |
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g_nxcon_vars.wndo.fontid = CONFIG_EXAMPLES_NXCON_FONTID; |
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g_nxcon_vars.hdrvr = nxtk_register(g_nxcon_vars.hwnd, &g_nxcon_vars.wndo, CONFIG_EXAMPLES_NXCON_MINOR); |
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if (!g_nxcon_vars.hdrvr) |
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{ |
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message("nxcon_main: nxtk_register failed: %d\n", errno); |
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goto errout_with_hwnd; |
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} |
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/* Open the NxConsole driver */ |
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fd = open(CONFIG_EXAMPLES_NXCON_DEVNAME, O_WRONLY); |
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if (fd < 0) |
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{ |
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message("nxcon_main: open %s read-only failed: %d\n", |
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CONFIG_EXAMPLES_NXCON_DEVNAME, errno); |
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goto errout_with_driver; |
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} |
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/* Start Console Task *****************************************************/ |
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/* Now re-direct stdout and stderr so that they use the NX console driver. |
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* Note that stdin is retained (file descriptor 0, probably the the serial console). |
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*/ |
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message("nxcon_main: Starting the console task\n"); |
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msgflush(); |
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(void)fflush(stdout); |
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(void)fflush(stderr); |
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(void)fclose(stdout); |
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(void)fclose(stderr); |
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(void)dup2(fd, 1); |
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(void)dup2(fd, 2); |
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/* And we can close our original driver file descriptor */ |
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close(fd); |
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/* And start the console task. It will inherit stdin, stdout, and stderr |
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* from this task. |
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*/ |
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g_nxcon_vars.pid = TASK_CREATE("NxConsole", CONFIG_EXAMPLES_NXCONSOLE_PRIO, |
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CONFIG_EXAMPLES_NXCONSOLE_STACKSIZE, |
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nxcon_task, NULL); |
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ASSERT(g_nxcon_vars.pid > 0); |
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return EXIT_SUCCESS; |
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/* Error Exits ************************************************************/ |
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errout_with_driver: |
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(void)nxcon_unregister(g_nxcon_vars.hdrvr); |
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errout_with_hwnd: |
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(void)nxtk_closewindow(g_nxcon_vars.hwnd); |
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errout_with_nx: |
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/* Disconnect from the server */ |
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nx_disconnect(g_nxcon_vars.hnx); |
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errout: |
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return EXIT_FAILURE; |
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}
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