From: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
Add the ability to send data to ports. This only supports
zero copy mode as the required bulk transfer setup calls
are not done.
Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
Signed-off-by: Jacopo Mondi <jacopo@xxxxxxxxxx>
---
.../vc04_services/vchiq-mmal/mmal-vchiq.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index 8358e25851c1..63a46818184f 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -422,11 +422,19 @@ buffer_from_host(struct vchiq_mmal_instance *instance,
m.u.buffer_from_host.buffer_header.data =
(u32)(unsigned long)buf->buffer;
m.u.buffer_from_host.buffer_header.alloc_size = buf->buffer_size;
- m.u.buffer_from_host.buffer_header.length = 0; /* nothing used yet */
- m.u.buffer_from_host.buffer_header.offset = 0; /* no offset */
- m.u.buffer_from_host.buffer_header.flags = 0; /* no flags */
- m.u.buffer_from_host.buffer_header.pts = MMAL_TIME_UNKNOWN;
- m.u.buffer_from_host.buffer_header.dts = MMAL_TIME_UNKNOWN;
+ if (port->type == MMAL_PORT_TYPE_OUTPUT) {
+ m.u.buffer_from_host.buffer_header.length = 0;
+ m.u.buffer_from_host.buffer_header.offset = 0;
+ m.u.buffer_from_host.buffer_header.flags = 0;
+ m.u.buffer_from_host.buffer_header.pts = MMAL_TIME_UNKNOWN;
+ m.u.buffer_from_host.buffer_header.dts = MMAL_TIME_UNKNOWN;
+ } else {
+ m.u.buffer_from_host.buffer_header.length = buf->length;
+ m.u.buffer_from_host.buffer_header.offset = 0;
+ m.u.buffer_from_host.buffer_header.flags = buf->mmal_flags;
+ m.u.buffer_from_host.buffer_header.pts = buf->pts;
+ m.u.buffer_from_host.buffer_header.dts = buf->dts;
+ }
/* clear buffer type sepecific data */
memset(&m.u.buffer_from_host.buffer_header_type_specific, 0,
--
Regards,
Laurent Pinchart
