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drivers/rtc/rtc-proc.c
3.2 KB
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/* * 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> |
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#include "rtc-core.h" |
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static int rtc_proc_show(struct seq_file *seq, void *offset) { int err; |
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struct rtc_device *rtc = seq->private; const struct rtc_class_ops *ops = rtc->ops; |
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struct rtc_wkalrm alrm; struct rtc_time tm; |
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err = rtc_read_time(rtc, &tm); |
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if (err == 0) { seq_printf(seq, "rtc_time\t: %02d:%02d:%02d " "rtc_date\t: %04d-%02d-%02d ", tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday); } |
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err = rtc_read_alarm(rtc, &alrm); |
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if (err == 0) { seq_printf(seq, "alrm_time\t: "); if ((unsigned int)alrm.time.tm_hour <= 24) seq_printf(seq, "%02d:", alrm.time.tm_hour); else seq_printf(seq, "**:"); if ((unsigned int)alrm.time.tm_min <= 59) seq_printf(seq, "%02d:", alrm.time.tm_min); else seq_printf(seq, "**:"); if ((unsigned int)alrm.time.tm_sec <= 59) seq_printf(seq, "%02d ", alrm.time.tm_sec); else seq_printf(seq, "** "); seq_printf(seq, "alrm_date\t: "); if ((unsigned int)alrm.time.tm_year <= 200) seq_printf(seq, "%04d-", alrm.time.tm_year + 1900); else seq_printf(seq, "****-"); if ((unsigned int)alrm.time.tm_mon <= 11) seq_printf(seq, "%02d-", alrm.time.tm_mon + 1); else seq_printf(seq, "**-"); |
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if (alrm.time.tm_mday && (unsigned int)alrm.time.tm_mday <= 31) |
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seq_printf(seq, "%02d ", alrm.time.tm_mday); else seq_printf(seq, "** "); |
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seq_printf(seq, "alarm_IRQ\t: %s ", |
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alrm.enabled ? "yes" : "no"); seq_printf(seq, "alrm_pending\t: %s ", alrm.pending ? "yes" : "no"); |
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seq_printf(seq, "update IRQ enabled\t: %s ", (rtc->uie_rtctimer.enabled) ? "yes" : "no"); seq_printf(seq, "periodic IRQ enabled\t: %s ", (rtc->pie_enabled) ? "yes" : "no"); seq_printf(seq, "periodic IRQ frequency\t: %d ", rtc->irq_freq); seq_printf(seq, "max user IRQ frequency\t: %d ", rtc->max_user_freq); |
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} |
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seq_printf(seq, "24hr\t\t: yes "); |
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if (ops->proc) |
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ops->proc(rtc->dev.parent, seq); |
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return 0; } static int rtc_proc_open(struct inode *inode, struct file *file) { |
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int ret; |
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struct rtc_device *rtc = PDE(inode)->data; |
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if (!try_module_get(THIS_MODULE)) return -ENODEV; |
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ret = single_open(file, rtc_proc_show, rtc); if (ret) module_put(THIS_MODULE); return ret; |
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} static int rtc_proc_release(struct inode *inode, struct file *file) { int res = single_release(inode, file); module_put(THIS_MODULE); return res; } |
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static const struct file_operations rtc_proc_fops = { |
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.open = rtc_proc_open, .read = seq_read, .llseek = seq_lseek, .release = rtc_proc_release, }; |
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void rtc_proc_add_device(struct rtc_device *rtc) |
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{ |
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if (rtc->id == 0) proc_create_data("driver/rtc", 0, NULL, &rtc_proc_fops, rtc); |
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} |
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void rtc_proc_del_device(struct rtc_device *rtc) |
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{ |
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if (rtc->id == 0) |
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remove_proc_entry("driver/rtc", NULL); |
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} |