1 /*
2  * g2d_rcq/g2d_rcq.h
3  *
4  * Copyright (c) 2007-2019 Allwinnertech Co., Ltd.
5  * Author: zhengxiaobin <zhengxiaobin@allwinnertech.com>
6  *
7  * This software is licensed under the terms of the GNU General Public
8  * License version 2, as published by the Free Software Foundation, and
9  * may be copied, distributed, and modified under those terms.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  */
17 
18 #include <stdlib.h>
19 #include <string.h>
20 #ifndef _G2D_RCQ_H
21 #define _G2D_RCQ_H
22 
23 #include "g2d_bsp.h"
24 
25 /*32 byte align required by rcq*/
26 #define G2D_RCQ_BYTE_ALIGN(x) (((x + (32 - 1)) >> 5) << 5)
27 /* 2 align */
28 #define G2D_RCQ_HEADER_ALIGN(x) (((x + 1) >> 1) << 1)
29 
30 
31 #define G2D_MIXER_RCQ_USED 1
32 
33 union rcq_hd_dw0 {
34 	__u32 dwval;
35 	struct {
36 		__u32 len:24;
37 		__u32 high_addr:8;
38 	} bits;
39 };
40 
41 union rcq_hd_dirty {
42 	__u32 dwval;
43 	struct {
44 		__u32 dirty:1;
45 		__u32 res0:15;
46 		__u32 n_header_len : 16; /*next frame header length*/
47 	} bits;
48 };
49 
50 struct g2d_rcq_head {
51 	__u32 low_addr; /* 32 bytes align */
52 	union rcq_hd_dw0 dw0;
53 	union rcq_hd_dirty dirty;
54 	__u32 reg_offset; /* offset_addr based on g2d_reg_base */
55 };
56 
57 /*
58 * @phy_addr: must be 32 bytes align, can not be accessed by cpu.
59 * @vir_addr: for cpu access.
60 * @size: unit: byte. must be 2 bytes align.
61 * @reg_addr: reg base addr of this block.
62 * @dirty: this block need be updated to hw reg if @dirty is true.
63 * @rcq_hd: pointer to rcq head of this dma_reg block at rcq mode.
64 * @block_id: unique id for current block
65 */
66 struct g2d_reg_block {
67 	u8 *phy_addr;
68 	u8 *vir_addr;
69 	__u32 size;
70 	u8  *reg_addr;
71 	__u32 dirty;
72 	struct g2d_rcq_head *rcq_hd;
73 	__u32 block_id;
74 };
75 
76 struct g2d_reg_mem_info {
77 	u8 *phy_addr; /* it is non-null at rcq mode */
78 	u8 *vir_addr;
79 	__u32 size;
80 };
81 
82 struct g2d_rcq_mem_info {
83 	u8 *phy_addr;
84 	struct g2d_rcq_head *vir_addr;
85 	struct g2d_reg_block **reg_blk;
86 	__u32 alloc_num;
87 	__u32 cur_num;
88 	__u32 block_num_per_frame;
89 	__u32 alloc_num_per_frame;
90 	__u32 rcq_header_len;
91 	__u32 rcq_byte_used;
92 	__u32 rcq_reg_mem_size;
93 };
94 __s32 g2d_top_mem_pool_alloc(struct g2d_rcq_mem_info *p_rcq_info);
95 void *g2d_top_reg_memory_alloc(__u32 size, void *phy_addr,
96 			       struct g2d_rcq_mem_info *p_rcq_info);
97 void g2d_top_mem_pool_free(struct g2d_rcq_mem_info *p_rcq_info);
98 
99 #endif /*End of file*/
100