diff options
author | Tiffany Lin <tiffany.lin@mediatek.com> | 2016-05-03 07:11:24 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 14:10:51 -0300 |
commit | 4e855a6efa5470d87d6148e3eb0d881255876c74 (patch) | |
tree | ea81f26037c3590bceae37699655660c3807eb93 /drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c | |
parent | e6d28fd67957a57a30f95e04898960242abd71be (diff) | |
download | linux-4e855a6efa5470d87d6148e3eb0d881255876c74.tar.bz2 |
[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver
Add v4l2 layer encoder driver for MT8173
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
[hans.verkuil@cisco.com: drop unnecessary ARM || ARM64 dependency]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c')
-rw-r--r-- | drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c new file mode 100644 index 000000000000..52e7e5c9afa0 --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c @@ -0,0 +1,54 @@ +/* +* Copyright (c) 2016 MediaTek Inc. +* Author: Tiffany Lin <tiffany.lin@mediatek.com> +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License version 2 as +* published by the Free Software Foundation. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +*/ + +#include <linux/errno.h> +#include <linux/wait.h> + +#include "mtk_vcodec_drv.h" +#include "mtk_vcodec_intr.h" +#include "mtk_vcodec_util.h" + +int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx, int command, + unsigned int timeout_ms) +{ + wait_queue_head_t *waitqueue; + long timeout_jiff, ret; + int status = 0; + + waitqueue = (wait_queue_head_t *)&ctx->queue; + timeout_jiff = msecs_to_jiffies(timeout_ms); + + ret = wait_event_interruptible_timeout(*waitqueue, + (ctx->int_cond && + (ctx->int_type == command)), + timeout_jiff); + + if (!ret) { + status = -1; /* timeout */ + mtk_v4l2_err("[%d] cmd=%d, ctx->type=%d, wait_event_interruptible_timeout time=%ums out %d %d!", + ctx->id, ctx->type, command, timeout_ms, + ctx->int_cond, ctx->int_type); + } else if (-ERESTARTSYS == ret) { + mtk_v4l2_err("[%d] cmd=%d, ctx->type=%d, wait_event_interruptible_timeout interrupted by a signal %d %d", + ctx->id, ctx->type, command, ctx->int_cond, + ctx->int_type); + status = -1; + } + + ctx->int_cond = 0; + ctx->int_type = 0; + + return status; +} +EXPORT_SYMBOL(mtk_vcodec_wait_for_done_ctx); |