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Add an RTC upper half driver. This is the driver that is documented in include/nutt/rtc.h

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This commit is contained in:
Gregory Nutt
2015-02-13 11:49:04 -06:00
parent c463f9fad6
commit fcadc2d8e4
2 changed files with 624 additions and 30 deletions
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drivers/timers/rtc.c
+589
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File diff suppressed because it is too large Load Diff
include/nuttx/rtc.h
+35 -30
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@@ -118,30 +118,30 @@
/* RTC_RD_TIME returns the current RTC time.
*
* Argument: A writeable reference to a struct rtc_time to receive the RTC's
* time.
* time.
*/
#define RTC_RD_TIME _RTCIOC(0x0001)
/* RTC_SET_TIME sets the RTC's time
*
* Argument: A read-only reference to a struct rtc_time containing the the
* Argument: A read-only reference to a struct rtc_time containing the
* new time to be set.
*/
#define RTC_SET_TIME _RTCIOC(0x0002)
/* RTC_ALM_READ reads the alarm time (for RTCs that support alarms)
*
* Argument: A writeable reference to a struct rtc_time to receive the RTC's
* alarm time.
*/
#define RTC_ALM_READ _RTCIOC(0x0003)
/* RTC_ALM_SET sets the alarm time (for RTCs that support alarms).
*
* Argument: A read-only reference to a struct rtc_time containing the the
* Argument: A read-only reference to a struct rtc_time containing the
* new alarm time to be set.
*/
@@ -175,7 +175,7 @@
*
* Argument: None
*/
#define RTC_AIE_OFF _RTCIOC(0x0008)
/* RTC_UIE_ON enable the interrupt on every clock update (for RTCs that
@@ -193,7 +193,7 @@
*/
#define RTC_UIE_OFF _RTCIOC(0x000a)
/* RTC_PIE_ON enable the periodic interrupt (for RTCs that support these
* periodic interrupts).
*
@@ -201,7 +201,7 @@
*/
#define RTC_PIE_ON _RTCIOC(0x000b)
/* RTC_PIE_OFF disable the periodic interrupt (for RTCs that support these
* periodic interrupts).
*
@@ -209,7 +209,7 @@
*/
#define RTC_PIE_OFF _RTCIOC(0x000c)
/* RTC_EPOCH_READ and RTC_EPOCH_SET.
*
* Many RTCs encode the year in an 8-bit register which is either interpreted
@@ -224,11 +224,11 @@
/* RTC_EPOCH_READ read the Epoch.
*
* Argument: A reference to a writeable unsigned low variable that will
* receive the the Epoch value.
* receive the Epoch value.
*/
#define RTC_EPOCH_READ _RTCIOC(0x000d)
/* RTC_EPOCH_SET set the Epoch
*
* Argument: An unsigned long value containing the new Epoch value to be set.
@@ -311,80 +311,85 @@ struct rtc_wkalrm
* A NULL value should be provided for any unsupported methods.
*/
struct rtc_lowerhalf_f;
struct rtc_lowerhalf_s;
struct rtc_ops_s
{
/* rdtime() returns the current RTC time. */
CODE int (*rdtime)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*rdtime)(FAR struct rtc_lowerhalf_s *lower,
FAR struct rtc_time *rtctime);
/* settime sets the RTC's time */
CODE int (*settime)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*settime)(FAR struct rtc_lowerhalf_s *lower,
FAR const struct rtc_time *rtctime);
/* almread reads the alarm time (for RTCs that support alarms) */
CODE int (*almread)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*almread)(FAR struct rtc_lowerhalf_s *lower,
FAR struct rtc_time *almtime);
/* almset sets the alarm time (for RTCs that support alarms). */
CODE int (*almset)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*almset)(FAR struct rtc_lowerhalf_s *lower,
FAR const struct rtc_time *almtime);
/* irqpread the frequency for periodic interrupts (for RTCs that support
* periodic interrupts)
*/
CODE int (*irqpread)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*irqpread)(FAR struct rtc_lowerhalf_s *lower,
FAR unsigned long *irqpfreq);
/* irqpset set the frequency for periodic interrupts (for RTCs that
* support periodic interrupts)
*/
CODE int (*irqpset)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*irqpset)(FAR struct rtc_lowerhalf_s *lower,
unsigned long irqpfreq);
/* aie enable/disable alarm interrupts (for RTCs that support alarms) */
CODE int (*aie)(FAR struct rtc_lowerhalf_f *lower, bool enable);
CODE int (*aie)(FAR struct rtc_lowerhalf_s *lower, bool enable);
/* uie enable/disable the interrupt on every clock update (for RTCs that
* support this once-per-second interrupt).
*/
CODE int (*uie)(FAR struct rtc_lowerhalf_f *lower, bool enable);
CODE int (*uie)(FAR struct rtc_lowerhalf_s *lower, bool enable);
/* pie enable the periodic interrupt (for RTCs that support these periodic
* interrupts).
*/
CODE int (*pie)(FAR struct rtc_lowerhalf_f *lower, bool enable);
CODE int (*pie)(FAR struct rtc_lowerhalf_s *lower, bool enable);
/* rdepoch read the Epoch. */
CODE int (*rdepoch)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*rdepoch)(FAR struct rtc_lowerhalf_s *lower,
FAR unsigned long *epoch);
/* setepoch set the Epoch */
CODE int (*setepoch)(FAR struct rtc_lowerhalf_f *lower,
CODE int (*setepoch)(FAR struct rtc_lowerhalf_s *lower,
unsigned long epoch);
/* rdwkalm read the current alarm */
CODE int (*rdwkalm)(FAR struct rtc_lowerhalf_f *lower,
FAR struct rtc_time *rtc_wkalrm);
CODE int (*rdwkalm)(FAR struct rtc_lowerhalf_s *lower,
FAR struct rtc_wkalrm *wkalrm);
/* setwkalm set the alarm. */
CODE int (*setwkalm)(FAR struct rtc_lowerhalf_f *lower,
FAR const struct rtc_time *rtc_wkalrm);
CODE int (*setwkalm)(FAR struct rtc_lowerhalf_s *lower,
FAR const struct rtc_wkalrm *wkalrm);
/* The driver has been unlinked and there are no further open references
* to the driver.
*/
CODE int (*destroy)(FAR struct rtc_lowerhalf_s *lower);
};
/* When the RTC driver is instantiated, a reference to struct
@@ -440,6 +445,6 @@ int rtc_initialize(int minor, FAR struct rtc_lowerhalf_s *lower);
}
#endif
#enif /* CONFIG_RTC_DRIVER */
#enif /* CONFIG_RTC */
#endif /* CONFIG_RTC_DRIVER */
#endif /* CONFIG_RTC */
#endif /* __INCLUDE_NUTTX_RTC_H */