diff options
Diffstat (limited to 'drivers/ptp/ptp_chardev.c')
| -rw-r--r-- | drivers/ptp/ptp_chardev.c | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c index 2012551d93e0..797fab33bb98 100644 --- a/drivers/ptp/ptp_chardev.c +++ b/drivers/ptp/ptp_chardev.c @@ -121,18 +121,20 @@ int ptp_open(struct posix_clock *pc, fmode_t fmode) long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) { - struct ptp_clock_caps caps; - struct ptp_clock_request req; - struct ptp_sys_offset *sysoff = NULL; - struct ptp_sys_offset_precise precise_offset; - struct ptp_pin_desc pd; struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); + struct ptp_sys_offset_extended *extoff = NULL; + struct ptp_sys_offset_precise precise_offset; + struct system_device_crosststamp xtstamp; struct ptp_clock_info *ops = ptp->info; + struct ptp_sys_offset *sysoff = NULL; + struct ptp_system_timestamp sts; + struct ptp_clock_request req; + struct ptp_clock_caps caps; struct ptp_clock_time *pct; + unsigned int i, pin_index; + struct ptp_pin_desc pd; struct timespec64 ts; - struct system_device_crosststamp xtstamp; int enable, err = 0; - unsigned int i, pin_index; switch (cmd) { @@ -211,6 +213,36 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) err = -EFAULT; break; + case PTP_SYS_OFFSET_EXTENDED: + if (!ptp->info->gettimex64) { + err = -EOPNOTSUPP; + break; + } + extoff = memdup_user((void __user *)arg, sizeof(*extoff)); + if (IS_ERR(extoff)) { + err = PTR_ERR(extoff); + extoff = NULL; + break; + } + if (extoff->n_samples > PTP_MAX_SAMPLES) { + err = -EINVAL; + break; + } + for (i = 0; i < extoff->n_samples; i++) { + err = ptp->info->gettimex64(ptp->info, &ts, &sts); + if (err) + goto out; + extoff->ts[i][0].sec = sts.pre_ts.tv_sec; + extoff->ts[i][0].nsec = sts.pre_ts.tv_nsec; + extoff->ts[i][1].sec = ts.tv_sec; + extoff->ts[i][1].nsec = ts.tv_nsec; + extoff->ts[i][2].sec = sts.post_ts.tv_sec; + extoff->ts[i][2].nsec = sts.post_ts.tv_nsec; + } + if (copy_to_user((void __user *)arg, extoff, sizeof(*extoff))) + err = -EFAULT; + break; + case PTP_SYS_OFFSET: sysoff = memdup_user((void __user *)arg, sizeof(*sysoff)); if (IS_ERR(sysoff)) { @@ -228,7 +260,12 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) pct->sec = ts.tv_sec; pct->nsec = ts.tv_nsec; pct++; - ptp->info->gettime64(ptp->info, &ts); + if (ops->gettimex64) + err = ops->gettimex64(ops, &ts, NULL); + else + err = ops->gettime64(ops, &ts); + if (err) + goto out; pct->sec = ts.tv_sec; pct->nsec = ts.tv_nsec; pct++; @@ -281,6 +318,8 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) break; } +out: + kfree(extoff); kfree(sysoff); return err; } |