diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2016-03-04 08:12:27 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-03-04 08:12:27 +0100 |
| commit | 69365272332a5cbef778c97b2337b4f79c509293 (patch) | |
| tree | c03bd4d13c12ae3be7282d4624cf25b23e1c2d1c /include/uapi/linux/ptp_clock.h | |
| parent | 82e88ff1ea948d83125a8aaa7c9809f03ccc500f (diff) | |
| parent | 01d7ada57ee9c735bd71fbe44ec0bcb70847afd4 (diff) | |
Merge branch 'fortglx/4.6/time' of https://git.linaro.org/people/john.stultz/linux into timers/core
Pull the cross-timestamp infrastructure from John Stultz.
Allows precise correlation of device timestamps with system time. Primary use
cases being PTP and audio.
Diffstat (limited to 'include/uapi/linux/ptp_clock.h')
| -rw-r--r-- | include/uapi/linux/ptp_clock.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/uapi/linux/ptp_clock.h b/include/uapi/linux/ptp_clock.h index f0b7bfe5da92..ac6dded80ffa 100644 --- a/include/uapi/linux/ptp_clock.h +++ b/include/uapi/linux/ptp_clock.h @@ -51,7 +51,9 @@ struct ptp_clock_caps { int n_per_out; /* Number of programmable periodic signals. */ int pps; /* Whether the clock supports a PPS callback. */ int n_pins; /* Number of input/output pins. */ - int rsv[14]; /* Reserved for future use. */ + /* Whether the clock supports precise system-device cross timestamps */ + int cross_timestamping; + int rsv[13]; /* Reserved for future use. */ }; struct ptp_extts_request { @@ -81,6 +83,13 @@ struct ptp_sys_offset { struct ptp_clock_time ts[2 * PTP_MAX_SAMPLES + 1]; }; +struct ptp_sys_offset_precise { + struct ptp_clock_time device; + struct ptp_clock_time sys_realtime; + struct ptp_clock_time sys_monoraw; + unsigned int rsv[4]; /* Reserved for future use. */ +}; + enum ptp_pin_function { PTP_PF_NONE, PTP_PF_EXTTS, @@ -124,6 +133,8 @@ struct ptp_pin_desc { #define PTP_SYS_OFFSET _IOW(PTP_CLK_MAGIC, 5, struct ptp_sys_offset) #define PTP_PIN_GETFUNC _IOWR(PTP_CLK_MAGIC, 6, struct ptp_pin_desc) #define PTP_PIN_SETFUNC _IOW(PTP_CLK_MAGIC, 7, struct ptp_pin_desc) +#define PTP_SYS_OFFSET_PRECISE \ + _IOWR(PTP_CLK_MAGIC, 8, struct ptp_sys_offset_precise) struct ptp_extts_event { struct ptp_clock_time t; /* Time event occured. */ |