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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-19 13:07:19 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-19 13:07:19 -0800
commit920841d8d1d61bc12b43f95a579a5374f6d98f81 (patch)
tree413be4ee2a75bb523d6e829ef0e52057f408222e /drivers/ieee1394/raw1394.c
parent5c56f466835d20fc4f7119063a8c029f7170a317 (diff)
parenta65421ea3f8a0e78b4e3b858bdc5ada5ad653807 (diff)
Merge branch 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: fix another deadlock in nodemgr ieee1394: cycle timer read extension for raw1394
Diffstat (limited to 'drivers/ieee1394/raw1394.c')
-rw-r--r--drivers/ieee1394/raw1394.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index aa9ca8385ec..bb897a37d9f 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -2669,6 +2669,18 @@ static void raw1394_iso_shutdown(struct file_info *fi)
fi->iso_state = RAW1394_ISO_INACTIVE;
}
+static int raw1394_read_cycle_timer(struct file_info *fi, void __user * uaddr)
+{
+ struct raw1394_cycle_timer ct;
+ int err;
+
+ err = hpsb_read_cycle_timer(fi->host, &ct.cycle_timer, &ct.local_time);
+ if (!err)
+ if (copy_to_user(uaddr, &ct, sizeof(ct)))
+ err = -EFAULT;
+ return err;
+}
+
/* mmap the rawiso xmit/recv buffer */
static int raw1394_mmap(struct file *file, struct vm_area_struct *vma)
{
@@ -2777,6 +2789,14 @@ static int raw1394_ioctl(struct inode *inode, struct file *file,
break;
}
+ /* state-independent commands */
+ switch(cmd) {
+ case RAW1394_IOC_GET_CYCLE_TIMER:
+ return raw1394_read_cycle_timer(fi, argp);
+ default:
+ break;
+ }
+
return -EINVAL;
}