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1 | /* |
2 | * Copyright (c) 2016 MediaTek Inc. | |
3 | * Author: PC Chen <pc.chen@mediatek.com> | |
4 | * Tiffany Lin <tiffany.lin@mediatek.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | ||
18 | #include "mtk_vcodec_drv.h" | |
19 | #include "mtk_vcodec_util.h" | |
20 | #include "mtk_vpu.h" | |
21 | ||
22 | /* For encoder, this will enable logs in venc/*/ | |
23 | bool mtk_vcodec_dbg; | |
24 | EXPORT_SYMBOL(mtk_vcodec_dbg); | |
25 | ||
26 | /* The log level of v4l2 encoder or decoder driver. | |
27 | * That is, files under mtk-vcodec/. | |
28 | */ | |
29 | int mtk_v4l2_dbg_level; | |
30 | EXPORT_SYMBOL(mtk_v4l2_dbg_level); | |
31 | ||
32 | void __iomem *mtk_vcodec_get_reg_addr(struct mtk_vcodec_ctx *data, | |
33 | unsigned int reg_idx) | |
34 | { | |
35 | struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data; | |
36 | ||
37 | if (!data || reg_idx >= NUM_MAX_VCODEC_REG_BASE) { | |
38 | mtk_v4l2_err("Invalid arguments, reg_idx=%d", reg_idx); | |
39 | return NULL; | |
40 | } | |
41 | return ctx->dev->reg_base[reg_idx]; | |
42 | } | |
43 | EXPORT_SYMBOL(mtk_vcodec_get_reg_addr); | |
44 | ||
45 | int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data, | |
46 | struct mtk_vcodec_mem *mem) | |
47 | { | |
48 | unsigned long size = mem->size; | |
49 | struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data; | |
50 | struct device *dev = &ctx->dev->plat_dev->dev; | |
51 | ||
750afb08 | 52 | mem->va = dma_alloc_coherent(dev, size, &mem->dma_addr, GFP_KERNEL); |
4e855a6e TL |
53 | if (!mem->va) { |
54 | mtk_v4l2_err("%s dma_alloc size=%ld failed!", dev_name(dev), | |
55 | size); | |
56 | return -ENOMEM; | |
57 | } | |
58 | ||
4e855a6e TL |
59 | mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va); |
60 | mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id, | |
61 | (unsigned long)mem->dma_addr); | |
62 | mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size); | |
63 | ||
64 | return 0; | |
65 | } | |
66 | EXPORT_SYMBOL(mtk_vcodec_mem_alloc); | |
67 | ||
68 | void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data, | |
69 | struct mtk_vcodec_mem *mem) | |
70 | { | |
71 | unsigned long size = mem->size; | |
72 | struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data; | |
73 | struct device *dev = &ctx->dev->plat_dev->dev; | |
74 | ||
75 | if (!mem->va) { | |
76 | mtk_v4l2_err("%s dma_free size=%ld failed!", dev_name(dev), | |
77 | size); | |
78 | return; | |
79 | } | |
80 | ||
4e855a6e TL |
81 | mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va); |
82 | mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id, | |
83 | (unsigned long)mem->dma_addr); | |
84 | mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size); | |
590577a4 TL |
85 | |
86 | dma_free_coherent(dev, size, mem->va, mem->dma_addr); | |
87 | mem->va = NULL; | |
88 | mem->dma_addr = 0; | |
89 | mem->size = 0; | |
4e855a6e TL |
90 | } |
91 | EXPORT_SYMBOL(mtk_vcodec_mem_free); | |
590577a4 TL |
92 | |
93 | void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev, | |
94 | struct mtk_vcodec_ctx *ctx) | |
95 | { | |
96 | unsigned long flags; | |
97 | ||
98 | spin_lock_irqsave(&dev->irqlock, flags); | |
99 | dev->curr_ctx = ctx; | |
100 | spin_unlock_irqrestore(&dev->irqlock, flags); | |
101 | } | |
102 | EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx); | |
103 | ||
104 | struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev) | |
105 | { | |
106 | unsigned long flags; | |
107 | struct mtk_vcodec_ctx *ctx; | |
108 | ||
109 | spin_lock_irqsave(&dev->irqlock, flags); | |
110 | ctx = dev->curr_ctx; | |
111 | spin_unlock_irqrestore(&dev->irqlock, flags); | |
112 | return ctx; | |
113 | } | |
114 | EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx); | |
ccbc1e38 JC |
115 | |
116 | MODULE_LICENSE("GPL v2"); | |
117 | MODULE_DESCRIPTION("Mediatek video codec driver"); |