1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
* Tiffany Lin <tiffany.lin@mediatek.com>
*/
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_util.h"
/* For encoder, this will enable logs in venc/*/
bool mtk_vcodec_dbg;
EXPORT_SYMBOL(mtk_vcodec_dbg);
/* The log level of v4l2 encoder or decoder driver.
* That is, files under mtk-vcodec/.
*/
int mtk_v4l2_dbg_level;
EXPORT_SYMBOL(mtk_v4l2_dbg_level);
void __iomem *mtk_vcodec_get_reg_addr(struct mtk_vcodec_ctx *data,
unsigned int reg_idx)
{
struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
if (!data || reg_idx >= NUM_MAX_VCODEC_REG_BASE) {
mtk_v4l2_err("Invalid arguments, reg_idx=%d", reg_idx);
return NULL;
}
return ctx->dev->reg_base[reg_idx];
}
EXPORT_SYMBOL(mtk_vcodec_get_reg_addr);
int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem)
{
unsigned long size = mem->size;
struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
struct device *dev = &ctx->dev->plat_dev->dev;
mem->va = dma_alloc_coherent(dev, size, &mem->dma_addr, GFP_KERNEL);
if (!mem->va) {
mtk_v4l2_err("%s dma_alloc size=%ld failed!", dev_name(dev),
size);
return -ENOMEM;
}
mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
(unsigned long)mem->dma_addr);
mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
return 0;
}
EXPORT_SYMBOL(mtk_vcodec_mem_alloc);
void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem)
{
unsigned long size = mem->size;
struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
struct device *dev = &ctx->dev->plat_dev->dev;
if (!mem->va) {
mtk_v4l2_err("%s dma_free size=%ld failed!", dev_name(dev),
size);
return;
}
mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
(unsigned long)mem->dma_addr);
mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
dma_free_coherent(dev, size, mem->va, mem->dma_addr);
mem->va = NULL;
mem->dma_addr = 0;
mem->size = 0;
}
EXPORT_SYMBOL(mtk_vcodec_mem_free);
struct mtk_vcodec_dev *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev *dev, int comp_idx)
{
struct platform_device *hw_pdev;
struct device_node *node;
struct mtk_vcodec_dev *hw_dev;
if (comp_idx >= MTK_VDEC_HW_MAX || comp_idx < 0) {
mtk_v4l2_err("Comp idx is out of range:%d", comp_idx);
return NULL;
}
if (dev->hw_dev[comp_idx])
return dev->hw_dev[comp_idx];
node = dev->component_node[comp_idx];
if (!node) {
mtk_v4l2_err("Get lat node fail:%d", comp_idx);
return NULL;
}
hw_pdev = of_find_device_by_node(node);
of_node_put(node);
if (WARN_ON(!hw_pdev)) {
mtk_v4l2_err("Get hw id(%d) node fail", comp_idx);
return NULL;
}
hw_dev = platform_get_drvdata(hw_pdev);
if (!hw_dev) {
mtk_v4l2_err("Get hw id(%d) pdev fail", comp_idx);
return NULL;
}
dev->hw_dev[hw_dev->comp_idx] = hw_dev;
return hw_dev;
}
EXPORT_SYMBOL(mtk_vcodec_get_hw_dev);
void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
struct mtk_vcodec_ctx *ctx, int comp_idx)
{
unsigned long flags;
struct mtk_vcodec_dev *comp_dev;
spin_lock_irqsave(&vdec_dev->irqlock, flags);
comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
if (!comp_dev) {
mtk_v4l2_err("Failed to get hw dev");
spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
return;
}
comp_dev->curr_ctx = ctx;
spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
}
EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *vdec_dev)
{
unsigned long flags;
struct mtk_vcodec_ctx *ctx;
spin_lock_irqsave(&vdec_dev->irqlock, flags);
ctx = vdec_dev->curr_ctx;
spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
return ctx;
}
EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Mediatek video codec driver");
|
