tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2016 MediaTek Inc.
4 * Author: PC Chen <pc.chen@mediatek.com>
5 * Tiffany Lin <tiffany.lin@mediatek.com>
6 */
7
8#include <linux/interrupt.h>
9#include <linux/kernel.h>
10#include <linux/slab.h>
11
12#include "vdec_drv_if.h"
13#include "mtk_vcodec_dec.h"
14#include "vdec_drv_base.h"
15#include "mtk_vcodec_dec_pm.h"
16
17int vdec_if_init(struct mtk_vcodec_dec_ctx *ctx, unsigned int fourcc)
18{
19 enum mtk_vdec_hw_arch hw_arch = ctx->dev->vdec_pdata->hw_arch;
20 int ret = 0;
21
22 switch (fourcc) {
23 case V4L2_PIX_FMT_H264_SLICE:
24 if (!ctx->dev->vdec_pdata->is_subdev_supported) {
25 ctx->dec_if = &vdec_h264_slice_if;
26 ctx->hw_id = MTK_VDEC_CORE;
27 } else {
28 ctx->dec_if = &vdec_h264_slice_multi_if;
29 ctx->hw_id = IS_VDEC_LAT_ARCH(hw_arch) ? MTK_VDEC_LAT0 : MTK_VDEC_CORE;
30 }
31 break;
32 case V4L2_PIX_FMT_H264:
33 ctx->dec_if = &vdec_h264_if;
34 ctx->hw_id = MTK_VDEC_CORE;
35 break;
36 case V4L2_PIX_FMT_VP8_FRAME:
37 ctx->dec_if = &vdec_vp8_slice_if;
38 ctx->hw_id = MTK_VDEC_CORE;
39 break;
40 case V4L2_PIX_FMT_VP8:
41 ctx->dec_if = &vdec_vp8_if;
42 ctx->hw_id = MTK_VDEC_CORE;
43 break;
44 case V4L2_PIX_FMT_VP9:
45 ctx->dec_if = &vdec_vp9_if;
46 ctx->hw_id = MTK_VDEC_CORE;
47 break;
48 case V4L2_PIX_FMT_VP9_FRAME:
49 ctx->dec_if = &vdec_vp9_slice_lat_if;
50 ctx->hw_id = IS_VDEC_LAT_ARCH(hw_arch) ? MTK_VDEC_LAT0 : MTK_VDEC_CORE;
51 break;
52 case V4L2_PIX_FMT_HEVC_SLICE:
53 ctx->dec_if = &vdec_hevc_slice_multi_if;
54 ctx->hw_id = MTK_VDEC_LAT0;
55 break;
56 case V4L2_PIX_FMT_AV1_FRAME:
57 ctx->dec_if = &vdec_av1_slice_lat_if;
58 ctx->hw_id = MTK_VDEC_LAT0;
59 break;
60 default:
61 return -EINVAL;
62 }
63
64 mtk_vcodec_dec_enable_hardware(ctx, ctx->hw_id);
65 ret = ctx->dec_if->init(ctx);
66 mtk_vcodec_dec_disable_hardware(ctx, ctx->hw_id);
67
68 return ret;
69}
70
71int vdec_if_decode(struct mtk_vcodec_dec_ctx *ctx, struct mtk_vcodec_mem *bs,
72 struct vdec_fb *fb, bool *res_chg)
73{
74 int ret = 0;
75
76 if (bs) {
77 if ((bs->dma_addr & 63) != 0) {
78 mtk_v4l2_vdec_err(ctx, "bs dma_addr should 64 byte align");
79 return -EINVAL;
80 }
81 }
82
83 if (fb) {
84 if (((fb->base_y.dma_addr & 511) != 0) ||
85 ((fb->base_c.dma_addr & 511) != 0)) {
86 mtk_v4l2_vdec_err(ctx, "frame buffer dma_addr should 512 byte align");
87 return -EINVAL;
88 }
89 }
90
91 if (!ctx->drv_handle)
92 return -EIO;
93
94 mtk_vcodec_dec_enable_hardware(ctx, ctx->hw_id);
95 mtk_vcodec_set_curr_ctx(ctx->dev, ctx, ctx->hw_id);
96 ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg);
97 mtk_vcodec_set_curr_ctx(ctx->dev, NULL, ctx->hw_id);
98 mtk_vcodec_dec_disable_hardware(ctx, ctx->hw_id);
99
100 return ret;
101}
102
103int vdec_if_get_param(struct mtk_vcodec_dec_ctx *ctx, enum vdec_get_param_type type,
104 void *out)
105{
106 int ret = 0;
107
108 if (!ctx->drv_handle)
109 return -EIO;
110
111 mtk_vdec_lock(ctx);
112 ret = ctx->dec_if->get_param(ctx->drv_handle, type, out);
113 mtk_vdec_unlock(ctx);
114
115 return ret;
116}
117
118void vdec_if_deinit(struct mtk_vcodec_dec_ctx *ctx)
119{
120 if (!ctx->drv_handle)
121 return;
122
123 mtk_vcodec_dec_enable_hardware(ctx, ctx->hw_id);
124 ctx->dec_if->deinit(ctx->drv_handle);
125 mtk_vcodec_dec_disable_hardware(ctx, ctx->hw_id);
126
127 ctx->drv_handle = NULL;
128}