LXR linux/drivers/media/platform/mtk-vcodec/mtk_vcodec

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3* Copyright (c) 2016 MediaTek Inc.
   4* Author: Tiffany Lin <tiffany.lin@mediatek.com>
   5*/
   6
   7#include <linux/errno.h>
   8#include <linux/wait.h>
   9
  10#include "mtk_vcodec_drv.h"
  11#include "mtk_vcodec_intr.h"
  12#include "mtk_vcodec_util.h"
  13
  14int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx  *ctx, int command,
  15                                 unsigned int timeout_ms)
  16{
  17        wait_queue_head_t *waitqueue;
  18        long timeout_jiff, ret;
  19        int status = 0;
  20
  21        waitqueue = (wait_queue_head_t *)&ctx->queue;
  22        timeout_jiff = msecs_to_jiffies(timeout_ms);
  23
  24        ret = wait_event_interruptible_timeout(*waitqueue,
  25                                ctx->int_cond,
  26                                timeout_jiff);
  27
  28        if (!ret) {
  29                status = -1;    /* timeout */
  30                mtk_v4l2_err("[%d] cmd=%d, ctx->type=%d, wait_event_interruptible_timeout time=%ums out %d %d!",
  31                                ctx->id, ctx->type, command, timeout_ms,
  32                                ctx->int_cond, ctx->int_type);
  33        } else if (-ERESTARTSYS == ret) {
  34                mtk_v4l2_err("[%d] cmd=%d, ctx->type=%d, wait_event_interruptible_timeout interrupted by a signal %d %d",
  35                                ctx->id, ctx->type, command, ctx->int_cond,
  36                                ctx->int_type);
  37                status = -1;
  38        }
  39
  40        ctx->int_cond = 0;
  41        ctx->int_type = 0;
  42
  43        return status;
  44}
  45EXPORT_SYMBOL(mtk_vcodec_wait_for_done_ctx);
  46