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