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#include "mtk_vpu.h"
17
18int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
19{
20 int ret = 0;
21
22 switch (fourcc) {
23 case V4L2_PIX_FMT_H264:
24 ctx->dec_if = &vdec_h264_if;
25 break;
26 case V4L2_PIX_FMT_VP8:
27 ctx->dec_if = &vdec_vp8_if;
28 break;
29 case V4L2_PIX_FMT_VP9:
30 ctx->dec_if = &vdec_vp9_if;
31 break;
32 default:
33 return -EINVAL;
34 }
35
36 mtk_vdec_lock(ctx);
37 mtk_vcodec_dec_clock_on(&ctx->dev->pm);
38 ret = ctx->dec_if->init(ctx);
39 mtk_vcodec_dec_clock_off(&ctx->dev->pm);
40 mtk_vdec_unlock(ctx);
41
42 return ret;
43}
44
45int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs,
46 struct vdec_fb *fb, bool *res_chg)
47{
48 int ret = 0;
49
50 if (bs) {
51 if ((bs->dma_addr & 63) != 0) {
52 mtk_v4l2_err("bs dma_addr should 64 byte align");
53 return -EINVAL;
54 }
55 }
56
57 if (fb) {
58 if (((fb->base_y.dma_addr & 511) != 0) ||
59 ((fb->base_c.dma_addr & 511) != 0)) {
60 mtk_v4l2_err("frame buffer dma_addr should 512 byte align");
61 return -EINVAL;
62 }
63 }
64
65 if (!ctx->drv_handle)
66 return -EIO;
67
68 mtk_vdec_lock(ctx);
69
70 mtk_vcodec_set_curr_ctx(ctx->dev, ctx);
71 mtk_vcodec_dec_clock_on(&ctx->dev->pm);
72 enable_irq(ctx->dev->dec_irq);
73 ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg);
74 disable_irq(ctx->dev->dec_irq);
75 mtk_vcodec_dec_clock_off(&ctx->dev->pm);
76 mtk_vcodec_set_curr_ctx(ctx->dev, NULL);
77
78 mtk_vdec_unlock(ctx);
79
80 return ret;
81}
82
83int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum vdec_get_param_type type,
84 void *out)
85{
86 int ret = 0;
87
88 if (!ctx->drv_handle)
89 return -EIO;
90
91 mtk_vdec_lock(ctx);
92 ret = ctx->dec_if->get_param(ctx->drv_handle, type, out);
93 mtk_vdec_unlock(ctx);
94
95 return ret;
96}
97
98void vdec_if_deinit(struct mtk_vcodec_ctx *ctx)
99{
100 if (!ctx->drv_handle)
101 return;
102
103 mtk_vdec_lock(ctx);
104 mtk_vcodec_dec_clock_on(&ctx->dev->pm);
105 ctx->dec_if->deinit(ctx->drv_handle);
106 mtk_vcodec_dec_clock_off(&ctx->dev->pm);
107 mtk_vdec_unlock(ctx);
108
109 ctx->drv_handle = NULL;
110}