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From 234616b7ea364a57fa7d14b98b022d9633ca9e68 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 270/773] 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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