285 lines
8.4 KiB
C
285 lines
8.4 KiB
C
/****************************************************************************
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* config/sim/src/sim_touchscreen.c
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*
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* Copyright (C) 2011, 2016-2017 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 <sys/boardctl.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <sched.h>
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#include <semaphore.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include <nuttx/video/fb.h>
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#include <nuttx/input/touchscreen.h>
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#include <nuttx/nx/nx.h>
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#include <nuttx/nx/nxglib.h>
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#ifdef CONFIG_VNCSERVER
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# include <nuttx/video/vnc.h>
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#endif
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#include "up_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Pick a background color */
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#ifndef CONFIG_EXAMPLES_TOUCHSCREEN_BGCOLOR
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# define CONFIG_EXAMPLES_TOUCHSCREEN_BGCOLOR 0x007b68ee
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct sim_touchscreen_s
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{
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NXHANDLE hnx;
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bool connected;
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sem_t eventsem;
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};
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct sim_touchscreen_s g_simtc =
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{
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NULL, /* hnx */
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false, /* connected */
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SEM_INITIALIZER(0), /* eventsem */
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sim_listener
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****************************************************************************/
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static FAR void *sim_listener(FAR void *arg)
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{
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int ret;
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/* Process events forever */
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for (;;)
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{
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/* Handle the next event. If we were configured blocking, then
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* we will stay right here until the next event is received. Since
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* we have dedicated a while thread to servicing events, it would
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* be most natural to also select CONFIG_NX_BLOCKING -- if not, the
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* following would be a tight infinite loop (unless we added addition
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* logic with nx_eventnotify and sigwait to pace it).
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*/
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ret = nx_eventhandler(g_simtc.hnx);
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if (ret < 0)
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{
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/* An error occurred... assume that we have lost connection with
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* the server.
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*/
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fwarn("WARNING: Lost server connection: %d\n", errno);
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pthread_exit(NULL);
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}
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/* If we received a message, we must be connected */
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if (!g_simtc.connected)
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{
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g_simtc.connected = true;
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sem_post(&g_simtc.eventsem);
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ginfo("Connected\n");
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}
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}
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return NULL; /* Not-reachable */
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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: board_tsc_setup()
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*
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* Description:
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* Perform architecuture-specific initialization of the touchscreen
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* hardware. This interface must be provided by all configurations
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* using apps/examples/touchscreen
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*
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****************************************************************************/
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int board_tsc_setup(int minor)
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{
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struct sched_param param;
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nxgl_mxpixel_t color;
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pthread_t thread;
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int ret;
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/* Set the client task priority */
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param.sched_priority = CONFIG_SIM_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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gerr("ERROR: sched_setparam failed: %d\n" , ret);
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return ret;
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}
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/* Start the NX server kernel thread */
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ret = boardctl(BOARDIOC_NX_START, 0);
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if (ret < 0)
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{
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gerr("ERROR: Failed to start the NX server: %d\n", errno);
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return ret;
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}
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/* Connect to the server */
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g_simtc.hnx = nx_connect();
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if (g_simtc.hnx)
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{
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pthread_attr_t attr;
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#ifdef CONFIG_VNCSERVER
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/* Setup the VNC server to support keyboard/mouse inputs */
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ret = vnc_default_fbinitialize(0, g_simtc.hnx);
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if (ret < 0)
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{
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ginfo("ERROR: vnc_default_fbinitialize failed: %d\n", ret);
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nx_disconnect(g_simtc.hnx);
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return ret;
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}
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#endif
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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_SIM_LISTENERPRIO;
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(void)pthread_attr_setschedparam(&attr, ¶m);
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(void)pthread_attr_setstacksize(&attr, CONFIG_SIM_LISTENER_STACKSIZE);
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ret = pthread_create(&thread, &attr, sim_listener, NULL);
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if (ret != 0)
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{
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gerr("ERROR: pthread_create failed: %d\n", ret);
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return -ret;
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}
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/* Don't return until we are connected to the server */
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while (!g_simtc.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_simtc.eventsem);
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}
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}
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else
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{
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gerr("ERROR: nx_connect failed: %d\n", errno);
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return ERROR;
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}
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/* Set the background to the configured background color */
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iinfo("Set background color=%d\n", CONFIG_EXAMPLES_TOUCHSCREEN_BGCOLOR);
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color = CONFIG_EXAMPLES_TOUCHSCREEN_BGCOLOR;
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ret = nx_setbgcolor(g_simtc.hnx, &color);
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if (ret < 0)
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{
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ierr("ERROR: nx_setbgcolor failed: %d\n", ret);
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goto errout_with_nx;
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}
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/* Finally, initialize the touchscreen simulation on the X window */
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ret = sim_tsc_initialize(minor);
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if (ret < 0)
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{
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ierr("ERROR: sim_tsc_initialize failed: %d\n", ret);
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goto errout_with_nx;
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}
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return OK;
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errout_with_nx:
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nx_disconnect(g_simtc.hnx);
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goto errout;
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errout:
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return ret;
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}
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/****************************************************************************
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* Name: board_tsc_teardown()
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*
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* Description:
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* Perform architecuture-specific un-initialization of the touchscreen
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* hardware. This interface must be provided by all configurations
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* using apps/examples/touchscreen
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*
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****************************************************************************/
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void board_tsc_teardown(void)
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{
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/* Shut down the touchscreen driver */
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sim_tsc_uninitialize();
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/* Close NX */
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nx_disconnect(g_simtc.hnx);
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}
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