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author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-12-31 11:36:16 +0100 |
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committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-12-31 11:36:16 +0100 |
commit | 36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62 (patch) | |
tree | 5f014b344dddf644505b582dfa90c013218261c5 /drivers/rtc/proc.c | |
parent | bba3d2daa8a9bc888902275401f15ef48fcdd378 (diff) | |
download | linux-stable-36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62.tar.gz linux-stable-36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62.tar.bz2 linux-stable-36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62.zip |
rtc: rename core files
Rename core files so there is a clearer separation between the RTC core and
the RTC drivers.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/proc.c')
-rw-r--r-- | drivers/rtc/proc.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/drivers/rtc/proc.c b/drivers/rtc/proc.c new file mode 100644 index 000000000000..4d74e4f4ff30 --- /dev/null +++ b/drivers/rtc/proc.c @@ -0,0 +1,95 @@ +/* + * 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); +} |