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From 2bae6bc4e75bbe6d771d81fb8989a1ada513303c 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 270/782] 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,
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