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Add a mouse interface that is similar to the touchscreen interface except that it can handle multple buttons and continuously reports positional data so that it can control a cursor

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This commit is contained in:
Gregory Nutt 2014-02-10 10:14:22 -06:00
parent f41e81e080
commit 81746b5117
5 changed files with 78 additions and 11 deletions
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3
ChangeLog.txt
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@ -818,4 +818,5 @@
an option and can be replaces with the EMACX-like CLE (about 2KB)
(2014-02-02).
* Several changes to restore Windows native build (2014-2-7)
* apps/examples/touchscreen: Can not be configured to work with a mouse
interface as well (2014-2-10).

2
examples/README.txt
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@ -1628,6 +1628,8 @@ examples/touchscreen
and this value is ignored. Otherwise, this number of samples is
collected and the program terminates. Default: Samples are collected
indefinitely.
CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE - The touchscreen test can also be
configured to work with a mouse driver by setting this option.
The following additional configurations must be set in the NuttX
configuration file:

7
examples/touchscreen/Kconfig
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@ -36,4 +36,11 @@ config EXAMPLES_TOUCHSCREEN_NSAMPLES
Otherwise, this number of samples is collected and the program
terminates. Default: Zero (Samples are collected indefinitely).
config EXAMPLES_TOUCHSCREEN_MOUSE
bool "Mouse interface"
default n
---help---
The touchscreen test can also be configured to work with a mouse
driver by setting this option.
endif

10
examples/touchscreen/tc.h
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@ -59,6 +59,8 @@
* and this value is ignored. Otherwise, this number of samples is
* collected and the program terminates. Default: Zero (Samples are collected
* indefinitely).
* CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE - The touchscreen test can also be
* configured to work with a mouse driver by setting this option.
*/
#ifndef CONFIG_INPUT
@ -68,13 +70,21 @@
#ifndef CONFIG_EXAMPLES_TOUCHSCREEN_MINOR
# undef CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH
# define CONFIG_EXAMPLES_TOUCHSCREEN_MINOR 0
# ifdef CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE
# define CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH "/dev/mouse0"
# else
# define CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH "/dev/input0"
# endif
#endif
#ifndef CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH
# undef CONFIG_EXAMPLES_TOUCHSCREEN_MINOR
# define CONFIG_EXAMPLES_TOUCHSCREEN_MINOR 0
# ifdef CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE
# define CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH "/dev/mouse0"
# else
# define CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH "/dev/input0"
# endif
#endif
#ifndef CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES

49
examples/touchscreen/tc_main.c
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@ -1,7 +1,7 @@
/****************************************************************************
* examples/touchscreen/tc_main.c
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Copyright (C) 2011, 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -48,6 +48,10 @@
#include <errno.h>
#include <debug.h>
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE
# include <nuttx/input/mouse.h>
#endif
#include <nuttx/input/touchscreen.h>
#include "tc.h"
@ -86,7 +90,11 @@
int tc_main(int argc, char *argv[])
{
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE
struct mouse_report_s sample;
#else
struct touch_sample_s sample;
#endif
ssize_t nbytes;
#if defined(CONFIG_NSH_BUILTIN_APPS) || CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES > 0
long nsamples;
@ -153,6 +161,44 @@ int tc_main(int argc, char *argv[])
msgflush();
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE
/* Read one sample */
ivdbg("Reading...\n");
nbytes = read(fd, &sample, sizeof(struct mouse_report_s));
ivdbg("Bytes read: %d\n", nbytes);
/* Handle unexpected return values */
if (nbytes < 0)
{
errval = errno;
if (errval != EINTR)
{
message("tc_main: read %s failed: %d\n",
CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH, errval);
errval = 3;
goto errout_with_dev;
}
message("tc_main: Interrupted read...\n");
}
else if (nbytes != sizeof(struct mouse_report_s))
{
message("tc_main: Unexpected read size=%d, expected=%d, Ignoring\n",
nbytes, sizeof(struct mouse_report_s));
}
/* Print the sample data on successful return */
else
{
message("Sample :\n");
message(" buttons : %02x\n", sample.buttons);
message(" x : %d\n", sample.x);
message(" y : %d\n", sample.y);
}
#else
/* Read one sample */
ivdbg("Reading...\n");
@ -195,6 +241,7 @@ int tc_main(int argc, char *argv[])
message(" w : %d\n", sample.point[0].w);
message(" pressure : %d\n", sample.point[0].pressure);
}
#endif
}
errout_with_dev: