Loading...
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 | /*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
* Tiffany Lin <tiffany.lin@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.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;
}
memset(mem->va, 0, size);
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);
void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
struct mtk_vcodec_ctx *ctx)
{
unsigned long flags;
spin_lock_irqsave(&dev->irqlock, flags);
dev->curr_ctx = ctx;
spin_unlock_irqrestore(&dev->irqlock, flags);
}
EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev)
{
unsigned long flags;
struct mtk_vcodec_ctx *ctx;
spin_lock_irqsave(&dev->irqlock, flags);
ctx = dev->curr_ctx;
spin_unlock_irqrestore(&dev->irqlock, flags);
return ctx;
}
EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx);
|