96 строки
2.2 KiB
C
96 строки
2.2 KiB
C
/*
|
|
* RTC subsystem, proc interface
|
|
*
|
|
* Copyright (C) 2005-06 Tower Technologies
|
|
* Author: Alessandro Zummo <a.zummo@towertech.it>
|
|
*
|
|
* based on arch/arm/common/rtctime.c
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/rtc.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/seq_file.h>
|
|
|
|
#include "rtc-core.h"
|
|
|
|
#define NAME_SIZE 10
|
|
|
|
#if defined(CONFIG_RTC_HCTOSYS_DEVICE)
|
|
static bool is_rtc_hctosys(struct rtc_device *rtc)
|
|
{
|
|
int size;
|
|
char name[NAME_SIZE];
|
|
|
|
size = scnprintf(name, NAME_SIZE, "rtc%d", rtc->id);
|
|
if (size > NAME_SIZE)
|
|
return false;
|
|
|
|
return !strncmp(name, CONFIG_RTC_HCTOSYS_DEVICE, NAME_SIZE);
|
|
}
|
|
#else
|
|
static bool is_rtc_hctosys(struct rtc_device *rtc)
|
|
{
|
|
return (rtc->id == 0);
|
|
}
|
|
#endif
|
|
|
|
static int rtc_proc_show(struct seq_file *seq, void *offset)
|
|
{
|
|
int err;
|
|
struct rtc_device *rtc = seq->private;
|
|
const struct rtc_class_ops *ops = rtc->ops;
|
|
struct rtc_wkalrm alrm;
|
|
struct rtc_time tm;
|
|
|
|
err = rtc_read_time(rtc, &tm);
|
|
if (err == 0) {
|
|
seq_printf(seq,
|
|
"rtc_time\t: %ptRt\n"
|
|
"rtc_date\t: %ptRd\n",
|
|
&tm, &tm);
|
|
}
|
|
|
|
err = rtc_read_alarm(rtc, &alrm);
|
|
if (err == 0) {
|
|
seq_printf(seq, "alrm_time\t: %ptRt\n", &alrm.time);
|
|
seq_printf(seq, "alrm_date\t: %ptRd\n", &alrm.time);
|
|
seq_printf(seq, "alarm_IRQ\t: %s\n",
|
|
alrm.enabled ? "yes" : "no");
|
|
seq_printf(seq, "alrm_pending\t: %s\n",
|
|
alrm.pending ? "yes" : "no");
|
|
seq_printf(seq, "update IRQ enabled\t: %s\n",
|
|
(rtc->uie_rtctimer.enabled) ? "yes" : "no");
|
|
seq_printf(seq, "periodic IRQ enabled\t: %s\n",
|
|
(rtc->pie_enabled) ? "yes" : "no");
|
|
seq_printf(seq, "periodic IRQ frequency\t: %d\n",
|
|
rtc->irq_freq);
|
|
seq_printf(seq, "max user IRQ frequency\t: %d\n",
|
|
rtc->max_user_freq);
|
|
}
|
|
|
|
seq_printf(seq, "24hr\t\t: yes\n");
|
|
|
|
if (ops->proc)
|
|
ops->proc(rtc->dev.parent, seq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void rtc_proc_add_device(struct rtc_device *rtc)
|
|
{
|
|
if (is_rtc_hctosys(rtc))
|
|
proc_create_single_data("driver/rtc", 0, NULL, rtc_proc_show,
|
|
rtc);
|
|
}
|
|
|
|
void rtc_proc_del_device(struct rtc_device *rtc)
|
|
{
|
|
if (is_rtc_hctosys(rtc))
|
|
remove_proc_entry("driver/rtc", NULL);
|
|
}
|