/* * 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, 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);