/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2022 MediaTek Inc.
 * Author: Ping-Hsun Wu <ping-hsun.wu@mediatek.com>
 */

#ifndef __MTK_MDP3_VPU_H__
#define __MTK_MDP3_VPU_H__

#include <linux/platform_device.h>
#include "mtk-img-ipi.h"

enum mdp_ipi_result {
        MDP_IPI_SUCCESS = 0,
        MDP_IPI_ENOMEM  = 12,
        MDP_IPI_EBUSY   = 16,
        MDP_IPI_EINVAL  = 22,
        MDP_IPI_EMINST  = 24,
        MDP_IPI_ERANGE  = 34,
        MDP_IPI_NR_ERRNO,

        MDP_IPI_EOTHER  = MDP_IPI_NR_ERRNO,
        MDP_IPI_PATH_CANT_MERGE,
        MDP_IPI_OP_FAIL,
};

struct mdp_ipi_init_msg {
        u32     status;
        u64     drv_data;
        u32     work_addr;      /* [in] working buffer address */
        u32     work_size;      /* [in] working buffer size */
} __packed;

struct mdp_ipi_deinit_msg {
        u32     status;
        u64     drv_data;
        u32     work_addr;
} __packed;

struct mdp_vpu_dev {
        /* synchronization protect for accessing vpu working buffer info */
        struct mutex            *lock;
        struct mtk_scp          *scp;
        struct completion       ipi_acked;
        void                    *param;
        dma_addr_t              param_addr;
        size_t                  param_size;
        void                    *work;
        dma_addr_t              work_addr;
        size_t                  work_size;
        void                    *config;
        dma_addr_t              config_addr;
        size_t                  config_size;
        u32                     status;
};

void mdp_vpu_shared_mem_free(struct mdp_vpu_dev *vpu);
int mdp_vpu_dev_init(struct mdp_vpu_dev *vpu, struct mtk_scp *scp,
                     struct mutex *lock /* for sync */);
int mdp_vpu_dev_deinit(struct mdp_vpu_dev *vpu);
int mdp_vpu_process(struct mdp_vpu_dev *vpu, struct img_ipi_frameparam *param);

#endif  /* __MTK_MDP3_VPU_H__ */