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Code Issues Releases Activity

Add a sysctl to change the LED display.

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This commit is contained in:
Juli Mallett 2012-10-29 07:06:23 +00:00
parent 859aa11dce
commit 0a5f2ecced
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=242302
1 changed files with 41 additions and 0 deletions
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41
sys/mips/cavium/octeon_machdep.c
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@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$");
#include <sys/ptrace.h>
#include <sys/reboot.h>
#include <sys/signalvar.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/time.h>
@ -366,6 +367,46 @@ octeon_get_timecount(struct timecounter *tc)
return ((unsigned)octeon_get_ticks());
}
static int
sysctl_machdep_led_display(SYSCTL_HANDLER_ARGS)
{
size_t buflen;
char buf[9];
int error;
if (req->newptr == NULL)
return (EINVAL);
if (cvmx_sysinfo_get()->led_display_base_addr == 0)
return (ENODEV);
/*
* Revision 1.x of the EBT3000 only supports 4 characters, but
* other devices support 8.
*/
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 &&
cvmx_sysinfo_get()->board_rev_major == 1)
buflen = 4;
else
buflen = 8;
if (req->newlen > buflen)
return (E2BIG);
error = SYSCTL_IN(req, buf, req->newlen);
if (error != 0)
return (error);
buf[req->newlen] = '\0';
ebt3000_str_write(buf);
return (0);
}
SYSCTL_PROC(_machdep, OID_AUTO, led_display, CTLTYPE_STRING | CTLFLAG_WR,
NULL, 0, sysctl_machdep_led_display, "A",
"String to display on LED display");
/**
* version of printf that works better in exception context.
*