diff options
Diffstat (limited to 'drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c')
| -rw-r--r-- | drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c new file mode 100644 index 000000000000..908602031fd0 --- /dev/null +++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c @@ -0,0 +1,150 @@ +// 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/regmap.h> + +#include "../decoder/mtk_vcodec_dec_drv.h" +#include "../encoder/mtk_vcodec_enc_drv.h" +#include "../decoder/mtk_vcodec_dec_hw.h" + +#if defined(CONFIG_DEBUG_FS) +int mtk_vcodec_dbg; +EXPORT_SYMBOL(mtk_vcodec_dbg); + +int mtk_v4l2_dbg_level; +EXPORT_SYMBOL(mtk_v4l2_dbg_level); +#endif + +void __iomem *mtk_vcodec_get_reg_addr(void __iomem **reg_base, unsigned int reg_idx) +{ + if (reg_idx >= NUM_MAX_VCODEC_REG_BASE) { + pr_err(MTK_DBG_V4L2_STR "Invalid arguments, reg_idx=%d", reg_idx); + return NULL; + } + return reg_base[reg_idx]; +} +EXPORT_SYMBOL(mtk_vcodec_get_reg_addr); + +int mtk_vcodec_write_vdecsys(struct mtk_vcodec_dec_ctx *ctx, unsigned int reg, + unsigned int val) +{ + struct mtk_vcodec_dec_dev *dev = ctx->dev; + + if (dev->vdecsys_regmap) + return regmap_write(dev->vdecsys_regmap, reg, val); + + writel(val, dev->reg_base[VDEC_SYS] + reg); + + return 0; +} +EXPORT_SYMBOL(mtk_vcodec_write_vdecsys); + +int mtk_vcodec_mem_alloc(void *priv, struct mtk_vcodec_mem *mem) +{ + unsigned long size = mem->size; + struct mtk_vcodec_dec_ctx *ctx = priv; + 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_vdec_err(ctx, "%s dma_alloc size=%ld failed!", dev_name(dev), size); + return -ENOMEM; + } + + mtk_v4l2_vdec_dbg(3, ctx, "[%d] - va = %p", ctx->id, mem->va); + mtk_v4l2_vdec_dbg(3, ctx, "[%d] - dma = 0x%lx", ctx->id, + (unsigned long)mem->dma_addr); + mtk_v4l2_vdec_dbg(3, ctx, "[%d] size = 0x%lx", ctx->id, size); + + return 0; +} +EXPORT_SYMBOL(mtk_vcodec_mem_alloc); + +void mtk_vcodec_mem_free(void *priv, struct mtk_vcodec_mem *mem) +{ + unsigned long size = mem->size; + struct mtk_vcodec_dec_ctx *ctx = priv; + struct device *dev = &ctx->dev->plat_dev->dev; + + if (!mem->va) { + mtk_v4l2_vdec_err(ctx, "%s dma_free size=%ld failed!", dev_name(dev), size); + return; + } + + mtk_v4l2_vdec_dbg(3, ctx, "[%d] - va = %p", ctx->id, mem->va); + mtk_v4l2_vdec_dbg(3, ctx, "[%d] - dma = 0x%lx", ctx->id, + (unsigned long)mem->dma_addr); + mtk_v4l2_vdec_dbg(3, ctx, "[%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_dec_dev *dev, int hw_idx) +{ + if (hw_idx >= MTK_VDEC_HW_MAX || hw_idx < 0 || !dev->subdev_dev[hw_idx]) { + dev_err(&dev->plat_dev->dev, "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_dec_dev *vdec_dev, + struct mtk_vcodec_dec_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) { + dev_err(&vdec_dev->plat_dev->dev, "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_dec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dec_dev *vdec_dev, + unsigned int hw_idx) +{ + unsigned long flags; + struct mtk_vcodec_dec_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) { + dev_err(&vdec_dev->plat_dev->dev, "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"); |