-From 483bef9dcddc4bcb9f4e250d91b31361a919b7ed Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.org>
-Date: Mon, 24 Sep 2018 18:26:02 +0100
-Subject: [PATCH] staging: vc04_services: Support sending data to MMAL
- ports
-
-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@raspberrypi.org>
----
- .../vc04_services/vchiq-mmal/mmal-vchiq.c | 18 +++++++++++++-----
- 1 file changed, 13 insertions(+), 5 deletions(-)
-
---- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
-+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
-@@ -428,11 +428,19 @@ buffer_from_host(struct vchiq_mmal_insta
- 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,