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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | // 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 "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; } 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"); |