// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2016 MediaTek Inc.
 * Author: Daniel Hsiao <daniel.hsiao@mediatek.com>
 *      Jungchang Tsao <jungchang.tsao@mediatek.com>
 *      Tiffany Lin <tiffany.lin@mediatek.com>
 */

#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/slab.h>

#include "venc_drv_base.h"
#include "venc_drv_if.h"

#include "mtk_vcodec_enc.h"
#include "mtk_vcodec_enc_pm.h"

int venc_if_init(struct mtk_vcodec_enc_ctx *ctx, unsigned int fourcc)
{
        int ret = 0;

        switch (fourcc) {
        case V4L2_PIX_FMT_VP8:
                ctx->enc_if = &venc_vp8_if;
                break;
        case V4L2_PIX_FMT_H264:
                ctx->enc_if = &venc_h264_if;
                break;
        default:
                return -EINVAL;
        }

        mtk_venc_lock(ctx);
        ret = ctx->enc_if->init(ctx);
        mtk_venc_unlock(ctx);

        return ret;
}

int venc_if_set_param(struct mtk_vcodec_enc_ctx *ctx,
                      enum venc_set_param_type type, struct venc_enc_param *in)
{
        int ret = 0;

        mtk_venc_lock(ctx);
        ret = ctx->enc_if->set_param(ctx->drv_handle, type, in);
        mtk_venc_unlock(ctx);

        return ret;
}

int venc_if_encode(struct mtk_vcodec_enc_ctx *ctx,
                   enum venc_start_opt opt, struct venc_frm_buf *frm_buf,
                   struct mtk_vcodec_mem *bs_buf,
                   struct venc_done_result *result)
{
        int ret = 0;
        unsigned long flags;

        mtk_venc_lock(ctx);

        spin_lock_irqsave(&ctx->dev->irqlock, flags);
        ctx->dev->curr_ctx = ctx;
        spin_unlock_irqrestore(&ctx->dev->irqlock, flags);

        ret = mtk_vcodec_enc_pw_on(&ctx->dev->pm);
        if (ret)
                goto venc_if_encode_pw_on_err;
        mtk_vcodec_enc_clock_on(&ctx->dev->pm);
        ret = ctx->enc_if->encode(ctx->drv_handle, opt, frm_buf,
                                  bs_buf, result);
        mtk_vcodec_enc_clock_off(&ctx->dev->pm);
        mtk_vcodec_enc_pw_off(&ctx->dev->pm);

        spin_lock_irqsave(&ctx->dev->irqlock, flags);
        ctx->dev->curr_ctx = NULL;
        spin_unlock_irqrestore(&ctx->dev->irqlock, flags);

venc_if_encode_pw_on_err:
        mtk_venc_unlock(ctx);
        return ret;
}

int venc_if_deinit(struct mtk_vcodec_enc_ctx *ctx)
{
        int ret = 0;

        if (!ctx->drv_handle)
                return 0;

        mtk_venc_lock(ctx);
        ret = ctx->enc_if->deinit(ctx->drv_handle);
        mtk_venc_unlock(ctx);

        ctx->drv_handle = NULL;

        return ret;
}