From 9be429e86876aed89177e671abc30529f385fb7d Mon Sep 17 00:00:00 2001
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From: Hertz Wang <wangh@rock-chips.com>
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Date: Fri, 4 Jan 2019 21:26:17 +0800
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Subject: [PATCH 1/1] force connector id if env setup
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Signed-off-by: Hertz Wang <wangh@rock-chips.com>
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---
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src/video/kmsdrm/SDL_kmsdrmvideo.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/src/video/kmsdrm/SDL_kmsdrmvideo.c b/src/video/kmsdrm/SDL_kmsdrmvideo.c
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index 631ddba..91e47f0 100644
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--- a/src/video/kmsdrm/SDL_kmsdrmvideo.c
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+++ b/src/video/kmsdrm/SDL_kmsdrmvideo.c
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@@ -278,6 +278,8 @@ KMSDRM_VideoInit(_THIS)
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drmModePlaneRes *plane_res = NULL;
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SDL_DisplayMode current_mode;
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SDL_VideoDisplay display;
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+ char *force_conn_id_str = getenv("ForceConnectID");
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+ int force_conn_id = 0;
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/* Allocate display internal data */
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SDL_DisplayData *data = (SDL_DisplayData *) SDL_calloc(1, sizeof(SDL_DisplayData));
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@@ -287,6 +289,9 @@ KMSDRM_VideoInit(_THIS)
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SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "KMSDRM_VideoInit()");
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+ if (force_conn_id_str)
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+ force_conn_id = atoi(force_conn_id_str);
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+
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/* Open /dev/dri/cardNN */
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devname = (char *) SDL_calloc(1, 16);
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if (devname == NULL) {
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@@ -324,9 +329,16 @@ KMSDRM_VideoInit(_THIS)
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if (connector == NULL)
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continue;
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+ if (force_conn_id != 0 && connector->connector_id == force_conn_id) {
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+ vdata->saved_conn_id = connector->connector_id;
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+ break;
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+ }
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+
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if (connector->connection == DRM_MODE_CONNECTED &&
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connector->count_modes > 0 &&
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connector->encoder_id > 0) {
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+ if (force_conn_id != 0 && connector->connector_id != force_conn_id)
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+ continue;
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SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Found connector %d with %d modes, encoder_id %d.",
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connector->connector_id, connector->count_modes, connector->encoder_id);
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vdata->saved_conn_id = connector->connector_id;
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--
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2.7.4
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