diff options
| author | Andy Walls <awalls@radix.net> | 2008-11-08 18:19:37 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 12:38:03 +0100 |
| commit | 330c6ec8942765e81f237bd58020da1b161935ce (patch) | |
| tree | 110bdf6daf5f280a9f3159136caa47e48e5fbaef /drivers/media/video/cx18/cx18-io.c | |
| parent | V4L/DVB (9595): cx18: Improve handling of outgoing mailboxes detected to be busy (diff) | |
| download | linux-330c6ec8942765e81f237bd58020da1b161935ce.tar.xz linux-330c6ec8942765e81f237bd58020da1b161935ce.zip | |
V4L/DVB (9596): cx18: Further changes to improve mailbox protocol integrity & performnce
All waits for cx18 mailbox API commands are now uninterruptable. Added
code to collect mailbox ack statistics. Tweaked timeouts based on collected
stats and video vertical frame and field rates.
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-io.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-io.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-io.c b/drivers/media/video/cx18/cx18-io.c index 0ad8dea3e600..48a8adc83c2f 100644 --- a/drivers/media/video/cx18/cx18-io.c +++ b/drivers/media/video/cx18/cx18-io.c @@ -37,6 +37,10 @@ void cx18_log_statistics(struct cx18 *cx) for (i = 0; i <= CX18_MAX_MMIO_RD_RETRIES; i++) CX18_DEBUG_INFO("retried_read[%d] = %d\n", i, atomic_read(&cx->mmio_stats.retried_read[i])); + for (i = 0; i <= CX18_MAX_MB_ACK_DELAY; i++) + if (atomic_read(&cx->mbox_stats.mb_ack_delay[i])) + CX18_DEBUG_INFO("mb_ack_delay[%d] = %d\n", i, + atomic_read(&cx->mbox_stats.mb_ack_delay[i])); return; } |