path: root/drivers/amvdec_ports/vdec_drv_if.c (plain)
blob: 4b70ed0200e0a212a4c869e92b9b3220bbfc9afe

1	/*
2	* Copyright (C) 2017 Amlogic, Inc. All rights reserved.
3	*
4	* This program is free software; you can redistribute it and/or modify
5	* it under the terms of the GNU General Public License as published by
6	* the Free Software Foundation; either version 2 of the License, or
7	* (at your option) any later version.
8	*
9	* This program is distributed in the hope that it will be useful, but WITHOUT
10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12	* more details.
13	*
14	* You should have received a copy of the GNU General Public License along
15	* with this program; if not, write to the Free Software Foundation, Inc.,
16	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17	*
18	* Description:
19	*/
20	#include <linux/interrupt.h>
21	#include <linux/kernel.h>
22	#include <linux/slab.h>
23
24	#include "vdec_drv_if.h"
25	#include "aml_vcodec_dec.h"
26	#include "vdec_drv_base.h"
27	#include "aml_vcodec_dec_pm.h"
28
29	const struct vdec_common_if *get_h264_dec_comm_if(void);
30	const struct vdec_common_if *get_hevc_dec_comm_if(void);
31	const struct vdec_common_if *get_vp9_dec_comm_if(void);
32	const struct vdec_common_if *get_mpeg12_dec_comm_if(void);
33	const struct vdec_common_if *get_mpeg4_dec_comm_if(void);
34	const struct vdec_common_if *get_mjpeg_dec_comm_if(void);
35
36	int vdec_if_init(struct aml_vcodec_ctx *ctx, unsigned int fourcc)
37	{
38	int ret = 0;
39
40	switch (fourcc) {
41	case V4L2_PIX_FMT_H264:
42	ctx->dec_if = get_h264_dec_comm_if();
43	break;
44	case V4L2_PIX_FMT_HEVC:
45	ctx->dec_if = get_hevc_dec_comm_if();
46	break;
47	case V4L2_PIX_FMT_VP9:
48	ctx->dec_if = get_vp9_dec_comm_if();
49	break;
50	case V4L2_PIX_FMT_MPEG:
51	case V4L2_PIX_FMT_MPEG1:
52	case V4L2_PIX_FMT_MPEG2:
53	ctx->dec_if = get_mpeg12_dec_comm_if();
54	break;
55	case V4L2_PIX_FMT_MPEG4:
56	ctx->dec_if = get_mpeg4_dec_comm_if();
57	break;
58	case V4L2_PIX_FMT_MJPEG:
59	ctx->dec_if = get_mjpeg_dec_comm_if();
60	break;
61	default:
62	return -EINVAL;
63	}
64
65	ret = ctx->dec_if->init(ctx, &ctx->drv_handle);
66
67	return ret;
68	}
69
70	int vdec_if_probe(struct aml_vcodec_ctx *ctx,
71	struct aml_vcodec_mem *bs, void *out)
72	{
73	int ret = 0;
74
75	ret = ctx->dec_if->probe(ctx->drv_handle, bs, out);
76
77	return ret;
78	}
79
80	int vdec_if_decode(struct aml_vcodec_ctx *ctx, struct aml_vcodec_mem *bs,
81	u64 timestamp, bool *res_chg)
82	{
83	int ret = 0;
84
85	if (bs) {
86	if ((bs->dma_addr & 63) != 0) {
87	aml_v4l2_err("bs dma_addr should 64 byte align");
88	return -EINVAL;
89	}
90	}
91
92	if (ctx->drv_handle == 0)
93	return -EIO;
94
95	aml_vcodec_set_curr_ctx(ctx->dev, ctx);
96	ret = ctx->dec_if->decode(ctx->drv_handle, bs, timestamp, res_chg);
97	aml_vcodec_set_curr_ctx(ctx->dev, NULL);
98
99	return ret;
100	}
101
102	int vdec_if_get_param(struct aml_vcodec_ctx *ctx,
103	enum vdec_get_param_type type, void *out)
104	{
105	int ret = 0;
106
107	if (ctx->drv_handle == 0)
108	return -EIO;
109
110	ret = ctx->dec_if->get_param(ctx->drv_handle, type, out);
111
112	return ret;
113	}
114
115	void vdec_if_deinit(struct aml_vcodec_ctx *ctx)
116	{
117	if (ctx->drv_handle == 0)
118	return;
119
120	ctx->dec_if->deinit(ctx->drv_handle);
121	ctx->drv_handle = 0;
122	}
123