// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2020 Rockchip Electronics Co. Ltd.
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*
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* Author: Zorro Liu <zorro.liu@rock-chips.com>
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*/
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#ifndef _BUF_MANAGE_H_
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#define _BUF_MANAGE_H_
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#define BUF_ERROR (-1)
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#define BUF_SUCCESS (0)
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enum ebc_buf_status {
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buf_idle = 0, //empty buf can be used
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buf_user = 1, //buf get by user
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buf_dsp = 2, //buf on dsp list
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buf_osd = 3, //buf is osd buf
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buf_error = 4,
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};
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struct ebc_buf_s {
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enum ebc_buf_status status; //buffer status.
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unsigned long phy_addr; //buffer physical address.
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char *virt_addr; //buffer virtual address.
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char tid_name[TASK_COMM_LEN];
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int buf_mode;
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int len; //buffer length
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int win_x1;
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int win_y1;
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int win_x2;
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int win_y2;
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};
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struct ebc_buf_s *ebc_osd_buf_get(void);
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struct ebc_buf_s *ebc_osd_buf_clone(void);
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int ebc_buf_release(struct ebc_buf_s *release_buf);
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int ebc_remove_from_dsp_buf_list(struct ebc_buf_s *remove_buf);
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int ebc_add_to_dsp_buf_list(struct ebc_buf_s *dsp_buf);
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int ebc_get_dsp_list_enum_num(void);
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struct ebc_buf_s *ebc_dsp_buf_get(void);
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struct ebc_buf_s *ebc_find_buf_by_phy_addr(unsigned long phy_addr);
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struct ebc_buf_s *ebc_empty_buf_get(void);
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unsigned long ebc_phy_buf_base_get(void);
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char *ebc_virt_buf_base_get(void);
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int ebc_buf_uninit(void);
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int ebc_buf_init(unsigned long phy_start, char *mem_start, int men_len, int dest_buf_len, int max_buf_num);
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#endif
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