forked from Minki/linux
4e855a6efa
Add v4l2 layer encoder driver for MT8173 Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com> [hans.verkuil@cisco.com: drop unnecessary ARM || ARM64 dependency] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
|
|
* 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;
|
|
}
|
|
|
|
dma_free_coherent(dev, size, mem->va, mem->dma_addr);
|
|
mem->va = NULL;
|
|
mem->dma_addr = 0;
|
|
mem->size = 0;
|
|
|
|
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);
|
|
}
|
|
EXPORT_SYMBOL(mtk_vcodec_mem_free);
|