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examples/qencoder: add an option to configure the encoder maximum position

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Signed-off-by: raiden00pl <raiden00@railab.me>
This commit is contained in:
raiden00pl 2021-08-10 10:21:49 +02:00 committed by Xiang Xiao
parent b8fd862965
commit 4fa7248036
2 changed files with 28 additions and 0 deletions
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9
examples/qencoder/Kconfig
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@ -33,4 +33,13 @@ config EXAMPLES_QENCODER_DELAY
If CONFIG_NSH_BUILTIN_APPS is defined, then this value is the default
delay if no other delay is provided on the command line.
config EXAMPLES_QENCODER_HAVE_MAXPOS
bool "Enable the maximum encoder position"
default n
config EXAMPLES_QENCODER_MAXPOS
int "Maximum encoder position"
default 0
depends on EXAMPLES_QENCODER_HAVE_MAXPOS
endif

19
examples/qencoder/qe_main.c
View File

@ -45,6 +45,12 @@
* Pre-processor Definitions
****************************************************************************/
#ifdef CONFIG_EXAMPLES_QENCODER_HAVE_MAXPOS
# if CONFIG_EXAMPLES_QENCODER_MAXPOS == 0
# error CONFIG_EXAMPLES_QENCODER_MAXPOS not specified
# endif
#endif
/****************************************************************************
* Private Types
****************************************************************************/
@ -245,6 +251,19 @@ int main(int argc, FAR char *argv[])
goto errout;
}
#ifdef CONFIG_EXAMPLES_QENCODER_HAVE_MAXPOS
/* Set the maximum encoder positions */
ret = ioctl(fd, QEIOC_SETPOSMAX,
(unsigned long)CONFIG_EXAMPLES_QENCODER_MAXPOS);
if (ret < 0)
{
printf("qe_main: ioctl(QEIOC_SETMAXPOS) failed: %d\n", errno);
exitval = EXIT_FAILURE;
goto errout_with_dev;
}
#endif
/* Reset the count if so requested */
if (g_qeexample.reset)