From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- .../media/platform/mtk-vcodec/mtk_vcodec_util.c | 108 +++++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c (limited to 'drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c') diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c new file mode 100644 index 000000000..ac5973b67 --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0 +/* +* Copyright (c) 2016 MediaTek Inc. +* Author: PC Chen +* Tiffany Lin +*/ + +#include + +#include "mtk_vcodec_drv.h" +#include "mtk_vcodec_util.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; + } + + 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); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Mediatek video codec driver"); -- cgit v1.2.3