1802d0beec
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2016 MediaTek Inc.
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* Author: PC Chen <pc.chen@mediatek.com>
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* Tiffany Lin <tiffany.lin@mediatek.com>
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*/
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#include <linux/module.h>
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#include "mtk_vcodec_drv.h"
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#include "mtk_vcodec_util.h"
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#include "mtk_vpu.h"
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/* For encoder, this will enable logs in venc/*/
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bool mtk_vcodec_dbg;
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EXPORT_SYMBOL(mtk_vcodec_dbg);
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/* The log level of v4l2 encoder or decoder driver.
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* That is, files under mtk-vcodec/.
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*/
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int mtk_v4l2_dbg_level;
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EXPORT_SYMBOL(mtk_v4l2_dbg_level);
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void __iomem *mtk_vcodec_get_reg_addr(struct mtk_vcodec_ctx *data,
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unsigned int reg_idx)
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{
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struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
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if (!data || reg_idx >= NUM_MAX_VCODEC_REG_BASE) {
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mtk_v4l2_err("Invalid arguments, reg_idx=%d", reg_idx);
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return NULL;
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}
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return ctx->dev->reg_base[reg_idx];
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}
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EXPORT_SYMBOL(mtk_vcodec_get_reg_addr);
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int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
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struct mtk_vcodec_mem *mem)
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{
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unsigned long size = mem->size;
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struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
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struct device *dev = &ctx->dev->plat_dev->dev;
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mem->va = dma_alloc_coherent(dev, size, &mem->dma_addr, GFP_KERNEL);
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if (!mem->va) {
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mtk_v4l2_err("%s dma_alloc size=%ld failed!", dev_name(dev),
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size);
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return -ENOMEM;
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}
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mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
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mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
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(unsigned long)mem->dma_addr);
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mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
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return 0;
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}
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EXPORT_SYMBOL(mtk_vcodec_mem_alloc);
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void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
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struct mtk_vcodec_mem *mem)
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{
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unsigned long size = mem->size;
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struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
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struct device *dev = &ctx->dev->plat_dev->dev;
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if (!mem->va) {
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mtk_v4l2_err("%s dma_free size=%ld failed!", dev_name(dev),
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size);
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return;
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}
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mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
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mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
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(unsigned long)mem->dma_addr);
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mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
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dma_free_coherent(dev, size, mem->va, mem->dma_addr);
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mem->va = NULL;
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mem->dma_addr = 0;
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mem->size = 0;
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}
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EXPORT_SYMBOL(mtk_vcodec_mem_free);
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void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
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struct mtk_vcodec_ctx *ctx)
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{
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unsigned long flags;
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spin_lock_irqsave(&dev->irqlock, flags);
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dev->curr_ctx = ctx;
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spin_unlock_irqrestore(&dev->irqlock, flags);
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}
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EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
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struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev)
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{
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unsigned long flags;
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struct mtk_vcodec_ctx *ctx;
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spin_lock_irqsave(&dev->irqlock, flags);
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ctx = dev->curr_ctx;
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spin_unlock_irqrestore(&dev->irqlock, flags);
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return ctx;
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}
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EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx);
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MODULE_LICENSE("GPL v2");
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MODULE_DESCRIPTION("Mediatek video codec driver");
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