* service. It is used with both the legacy mc146818 and also EFI
* Struct rtc_time and first 12 ioctl by Paul Gortmaker, 1996 - separated out
* from <linux/mc146818rtc.h> to this file for 2.4 kernels.
- *
+ *
* Copyright (C) 1999 Hewlett-Packard Co.
* Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com>
*/
/*
* The struct used to pass data via the following ioctl. Similar to the
- * struct tm in <time.h>, but it needs to be here so that the kernel
+ * struct tm in <time.h>, but it needs to be here so that the kernel
* source is self contained, allowing cross-compiles, etc. etc.
*/
* alarm API.
*/
struct rtc_wkalrm {
- unsigned char enabled; /* 0 = alarm disable, 1 = alarm disabled */
- unsigned char pending; /* 0 = alarm pending, 1 = alarm not pending */
+ unsigned char enabled; /* 0 = alarm disabled, 1 = alarm enabled */
+ unsigned char pending; /* 0 = alarm not pending, 1 = alarm pending */
struct rtc_time time; /* time the alarm is set to */
};
* pll_value*pll_posmult/pll_clock
* -ve pll_value means clock will run slower by
* pll_value*pll_negmult/pll_clock
- */
+ */
struct rtc_pll_info {
int pll_ctrl; /* placeholder for fancier control */
#ifdef __KERNEL__
+#include <linux/types.h>
#include <linux/interrupt.h>
extern int rtc_month_days(unsigned int month, unsigned int year);
extern struct class *rtc_class;
+/*
+ * For these RTC methods the device parameter is the physical device
+ * on whatever bus holds the hardware (I2C, Platform, SPI, etc), which
+ * was passed to rtc_device_register(). Its driver_data normally holds
+ * device state, including the rtc_device pointer for the RTC.
+ *
+ * Most of these methods are called with rtc_device.ops_lock held,
+ * through the rtc_*(struct rtc_device *, ...) calls.
+ *
+ * The (current) exceptions are mostly filesystem hooks:
+ * - the proc() hook for procfs
+ * - non-ioctl() chardev hooks: open(), release(), read_callback()
+ * - periodic irq calls: irq_set_state(), irq_set_freq()
+ *
+ * REVISIT those periodic irq calls *do* have ops_lock when they're
+ * issued through ioctl() ...
+ */
struct rtc_class_ops {
int (*open)(struct device *);
void (*release)(struct device *);
int (*irq_set_state)(struct device *, int enabled);
int (*irq_set_freq)(struct device *, int freq);
int (*read_callback)(struct device *, int data);
+ int (*alarm_irq_enable)(struct device *, unsigned int enabled);
+ int (*update_irq_enable)(struct device *, unsigned int enabled);
};
#define RTC_DEVICE_NAME_SIZE 20
struct rtc_task;
+/* flags */
+#define RTC_DEV_BUSY 0
+
struct rtc_device
{
- struct class_device class_dev;
+ struct device dev;
struct module *owner;
int id;
char name[RTC_DEVICE_NAME_SIZE];
- struct rtc_class_ops *ops;
+ const struct rtc_class_ops *ops;
struct mutex ops_lock;
- struct class_device *rtc_dev;
struct cdev char_dev;
- struct mutex char_lock;
+ unsigned long flags;
unsigned long irq_data;
spinlock_t irq_lock;
struct timer_list uie_timer;
/* Those fields are protected by rtc->irq_lock */
unsigned int oldsecs;
- unsigned int irq_active:1;
+ unsigned int uie_irq_active:1;
unsigned int stop_uie_polling:1;
unsigned int uie_task_active:1;
unsigned int uie_timer_active:1;
#endif
};
-#define to_rtc_device(d) container_of(d, struct rtc_device, class_dev)
+#define to_rtc_device(d) container_of(d, struct rtc_device, dev)
extern struct rtc_device *rtc_device_register(const char *name,
struct device *dev,
- struct rtc_class_ops *ops,
+ const struct rtc_class_ops *ops,
struct module *owner);
-extern void rtc_device_unregister(struct rtc_device *rdev);
-extern int rtc_interface_register(struct class_interface *intf);
+extern void rtc_device_unregister(struct rtc_device *rtc);
-extern int rtc_read_time(struct class_device *class_dev, struct rtc_time *tm);
-extern int rtc_set_time(struct class_device *class_dev, struct rtc_time *tm);
-extern int rtc_set_mmss(struct class_device *class_dev, unsigned long secs);
-extern int rtc_read_alarm(struct class_device *class_dev,
+extern int rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm);
+extern int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm);
+extern int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs);
+extern int rtc_read_alarm(struct rtc_device *rtc,
struct rtc_wkalrm *alrm);
-extern int rtc_set_alarm(struct class_device *class_dev,
+extern int rtc_set_alarm(struct rtc_device *rtc,
struct rtc_wkalrm *alrm);
-extern void rtc_update_irq(struct class_device *class_dev,
+extern void rtc_update_irq(struct rtc_device *rtc,
unsigned long num, unsigned long events);
-extern struct class_device *rtc_class_open(char *name);
-extern void rtc_class_close(struct class_device *class_dev);
+extern struct rtc_device *rtc_class_open(char *name);
+extern void rtc_class_close(struct rtc_device *rtc);
-extern int rtc_irq_register(struct class_device *class_dev,
+extern int rtc_irq_register(struct rtc_device *rtc,
struct rtc_task *task);
-extern void rtc_irq_unregister(struct class_device *class_dev,
+extern void rtc_irq_unregister(struct rtc_device *rtc,
struct rtc_task *task);
-extern int rtc_irq_set_state(struct class_device *class_dev,
+extern int rtc_irq_set_state(struct rtc_device *rtc,
struct rtc_task *task, int enabled);
-extern int rtc_irq_set_freq(struct class_device *class_dev,
+extern int rtc_irq_set_freq(struct rtc_device *rtc,
struct rtc_task *task, int freq);
+extern int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled);
+extern int rtc_alarm_irq_enable(struct rtc_device *rtc, unsigned int enabled);
+extern int rtc_dev_update_irq_enable_emul(struct rtc_device *rtc,
+ unsigned int enabled);
typedef struct rtc_task {
void (*func)(void *private_data);
int rtc_register(rtc_task_t *task);
int rtc_unregister(rtc_task_t *task);
int rtc_control(rtc_task_t *t, unsigned int cmd, unsigned long arg);
-void rtc_get_rtc_time(struct rtc_time *rtc_tm);
-irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+
+static inline bool is_leap_year(unsigned int year)
+{
+ return (!(year % 4) && (year % 100)) || !(year % 400);
+}
#endif /* __KERNEL__ */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff