forked from strace/strace
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rtc.c
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rtc.c
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/*
* Copyright (c) 2004 Ulrich Drepper <drepper@redhat.com>
* Copyright (c) 2004-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#include DEF_MPERS_TYPE(struct_rtc_pll_info)
#include <linux/ioctl.h>
#include <linux/rtc.h>
typedef struct rtc_pll_info struct_rtc_pll_info;
#include MPERS_DEFS
static void
print_rtc_time(struct tcb *tcp, const struct rtc_time *rt)
{
tprintf("{tm_sec=%d, tm_min=%d, tm_hour=%d, "
"tm_mday=%d, tm_mon=%d, tm_year=%d, ",
rt->tm_sec, rt->tm_min, rt->tm_hour,
rt->tm_mday, rt->tm_mon, rt->tm_year);
if (!abbrev(tcp))
tprintf("tm_wday=%d, tm_yday=%d, tm_isdst=%d}",
rt->tm_wday, rt->tm_yday, rt->tm_isdst);
else
tprints("...}");
}
static void
decode_rtc_time(struct tcb *tcp, const long addr)
{
struct rtc_time rt;
if (!umove_or_printaddr(tcp, addr, &rt))
print_rtc_time(tcp, &rt);
}
static void
decode_rtc_wkalrm(struct tcb *tcp, const long addr)
{
struct rtc_wkalrm wk;
if (!umove_or_printaddr(tcp, addr, &wk)) {
tprintf("{enabled=%d, pending=%d, time=", wk.enabled, wk.pending);
print_rtc_time(tcp, &wk.time);
tprints("}");
}
}
static void
decode_rtc_pll_info(struct tcb *tcp, const long addr)
{
struct_rtc_pll_info pll;
if (!umove_or_printaddr(tcp, addr, &pll))
tprintf("{pll_ctrl=%d, pll_value=%d, pll_max=%d, pll_min=%d"
", pll_posmult=%d, pll_negmult=%d, pll_clock=%ld}",
pll.pll_ctrl, pll.pll_value, pll.pll_max, pll.pll_min,
pll.pll_posmult, pll.pll_negmult, (long) pll.pll_clock);
}
MPERS_PRINTER_DECL(int, rtc_ioctl, struct tcb *tcp,
const unsigned int code, const long arg)
{
switch (code) {
case RTC_ALM_READ:
case RTC_RD_TIME:
if (entering(tcp))
return 0;
/* fall through */
case RTC_ALM_SET:
case RTC_SET_TIME:
tprints(", ");
decode_rtc_time(tcp, arg);
break;
case RTC_IRQP_SET:
case RTC_EPOCH_SET:
tprintf(", %lu", arg);
break;
case RTC_IRQP_READ:
case RTC_EPOCH_READ:
if (entering(tcp))
return 0;
tprints(", ");
printnum_ulong(tcp, arg);
break;
case RTC_WKALM_RD:
if (entering(tcp))
return 0;
/* fall through */
case RTC_WKALM_SET:
tprints(", ");
decode_rtc_wkalrm(tcp, arg);
break;
case RTC_PLL_GET:
if (entering(tcp))
return 0;
/* fall through */
case RTC_PLL_SET:
tprints(", ");
decode_rtc_pll_info(tcp, arg);
break;
#ifdef RTC_VL_READ
case RTC_VL_READ:
if (entering(tcp))
return 0;
tprints(", ");
printnum_int(tcp, arg, "%d");
break;
#endif
case RTC_AIE_ON:
case RTC_AIE_OFF:
case RTC_UIE_ON:
case RTC_UIE_OFF:
case RTC_PIE_ON:
case RTC_PIE_OFF:
case RTC_WIE_ON:
case RTC_WIE_OFF:
#ifdef RTC_VL_CLR
case RTC_VL_CLR:
#endif
/* no args */
break;
default:
return RVAL_DECODED;
}
return RVAL_DECODED | 1;
}