From 72a4f8081af1c53a1673c173ce0fdd85c4b7d403 Mon Sep 17 00:00:00 2001 From: Andy Walls Date: Sun, 16 Nov 2008 21:18:00 -0300 Subject: V4L/DVB (9723): cx18: Propagate staleness of mailbox and mdl ack data to work handler cx18: Propagate staleness of mailbox and mdl ack data to work handler to let the work handler know that the data from the encoder may not be coherent. Allows for smarter handling of buffers in future, to deal with MDLs that fall out of rotation due to irq handler being late in collecting mailbox and mdl ack info. Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx18/cx18-driver.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/media/video/cx18/cx18-driver.h') diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index 041fa660a7c..749bbb60a29 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -245,13 +245,20 @@ struct cx18_dvb { struct cx18; /* forward reference */ struct cx18_scb; /* forward reference */ + #define CX18_MAX_MDL_ACKS 2 #define CX18_MAX_EPU_WORK_ORDERS 70 /* CPU_DE_RELEASE_MDL bursts 63 commands */ +#define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1 +#define CX18_F_EWO_MB_STALE_WHILE_PROC 0x2 +#define CX18_F_EWO_MB_STALE \ + (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC) + struct cx18_epu_work_order { struct work_struct work; atomic_t pending; struct cx18 *cx; + unsigned long flags; int rpu; struct cx18_mailbox mb; struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS]; -- cgit v1.2.3