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// 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_dec_hw.h"
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_util.h"
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);
void *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev *dev, int hw_idx)
{
if (hw_idx >= MTK_VDEC_HW_MAX || hw_idx < 0 || !dev->subdev_dev[hw_idx]) {
mtk_v4l2_err("hw idx is out of range:%d", hw_idx);
return NULL;
}
return dev->subdev_dev[hw_idx];
}
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 hw_idx)
{
unsigned long flags;
struct mtk_vdec_hw_dev *subdev_dev;
spin_lock_irqsave(&vdec_dev->irqlock, flags);
if (vdec_dev->vdec_pdata->is_subdev_supported) {
subdev_dev = mtk_vcodec_get_hw_dev(vdec_dev, hw_idx);
if (!subdev_dev) {
mtk_v4l2_err("Failed to get hw dev");
spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
return;
}
subdev_dev->curr_ctx = ctx;
} else {
vdec_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 int hw_idx)
{
unsigned long flags;
struct mtk_vcodec_ctx *ctx;
struct mtk_vdec_hw_dev *subdev_dev;
spin_lock_irqsave(&vdec_dev->irqlock, flags);
if (vdec_dev->vdec_pdata->is_subdev_supported) {
subdev_dev = mtk_vcodec_get_hw_dev(vdec_dev, hw_idx);
if (!subdev_dev) {
mtk_v4l2_err("Failed to get hw dev");
spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
return NULL;
}
ctx = subdev_dev->curr_ctx;
} else {
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");
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