vdec_drv_if.c

  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Copyright (c) 2016 MediaTek Inc.
  4 * Author: PC Chen <pc.chen@mediatek.com>
  5 *         Tiffany Lin <tiffany.lin@mediatek.com>
  6 */
  7
  8#include <linux/interrupt.h>
  9#include <linux/kernel.h>
 10#include <linux/slab.h>
 11
 12#include "vdec_drv_if.h"
 13#include "mtk_vcodec_dec.h"
 14#include "vdec_drv_base.h"
 15#include "mtk_vcodec_dec_pm.h"
 16
 17int vdec_if_init(struct mtk_vcodec_dec_ctx *ctx, unsigned int fourcc)
 18{
 19	enum mtk_vdec_hw_arch hw_arch = ctx->dev->vdec_pdata->hw_arch;
 20	int ret = 0;
 21
 22	switch (fourcc) {
 23	case V4L2_PIX_FMT_H264_SLICE:
 24		if (!ctx->dev->vdec_pdata->is_subdev_supported) {
 25			ctx->dec_if = &vdec_h264_slice_if;
 26			ctx->hw_id = MTK_VDEC_CORE;
 27		} else {
 28			ctx->dec_if = &vdec_h264_slice_multi_if;
 29			ctx->hw_id = IS_VDEC_LAT_ARCH(hw_arch) ? MTK_VDEC_LAT0 : MTK_VDEC_CORE;
 30		}
 31		break;
 32	case V4L2_PIX_FMT_H264:
 33		ctx->dec_if = &vdec_h264_if;
 34		ctx->hw_id = MTK_VDEC_CORE;
 35		break;
 36	case V4L2_PIX_FMT_VP8_FRAME:
 37		ctx->dec_if = &vdec_vp8_slice_if;
 38		ctx->hw_id = MTK_VDEC_CORE;
 39		break;
 40	case V4L2_PIX_FMT_VP8:
 41		ctx->dec_if = &vdec_vp8_if;
 42		ctx->hw_id = MTK_VDEC_CORE;
 43		break;
 44	case V4L2_PIX_FMT_VP9:
 45		ctx->dec_if = &vdec_vp9_if;
 46		ctx->hw_id = MTK_VDEC_CORE;
 47		break;
 48	case V4L2_PIX_FMT_VP9_FRAME:
 49		ctx->dec_if = &vdec_vp9_slice_lat_if;
 50		ctx->hw_id = IS_VDEC_LAT_ARCH(hw_arch) ? MTK_VDEC_LAT0 : MTK_VDEC_CORE;
 51		break;
 52	case V4L2_PIX_FMT_HEVC_SLICE:
 53		ctx->dec_if = &vdec_hevc_slice_multi_if;
 54		ctx->hw_id = MTK_VDEC_LAT0;
 55		break;
 56	case V4L2_PIX_FMT_AV1_FRAME:
 57		ctx->dec_if = &vdec_av1_slice_lat_if;
 58		ctx->hw_id = MTK_VDEC_LAT0;
 59		break;
 60	default:
 61		return -EINVAL;
 62	}
 63
 64	mtk_vcodec_dec_enable_hardware(ctx, ctx->hw_id);
 65	ret = ctx->dec_if->init(ctx);
 66	mtk_vcodec_dec_disable_hardware(ctx, ctx->hw_id);
 67
 68	return ret;
 69}
 70
 71int vdec_if_decode(struct mtk_vcodec_dec_ctx *ctx, struct mtk_vcodec_mem *bs,
 72		   struct vdec_fb *fb, bool *res_chg)
 73{
 74	int ret = 0;
 75
 76	if (bs) {
 77		if ((bs->dma_addr & 63) != 0) {
 78			mtk_v4l2_vdec_err(ctx, "bs dma_addr should 64 byte align");
 79			return -EINVAL;
 80		}
 81	}
 82
 83	if (fb) {
 84		if (((fb->base_y.dma_addr & 511) != 0) ||
 85		    ((fb->base_c.dma_addr & 511) != 0)) {
 86			mtk_v4l2_vdec_err(ctx, "frame buffer dma_addr should 512 byte align");
 87			return -EINVAL;
 88		}
 89	}
 90
 91	if (!ctx->drv_handle)
 92		return -EIO;
 93
 94	mtk_vcodec_dec_enable_hardware(ctx, ctx->hw_id);
 95	mtk_vcodec_set_curr_ctx(ctx->dev, ctx, ctx->hw_id);
 96	ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg);
 97	mtk_vcodec_set_curr_ctx(ctx->dev, NULL, ctx->hw_id);
 98	mtk_vcodec_dec_disable_hardware(ctx, ctx->hw_id);
 99
100	return ret;
101}
102
103int vdec_if_get_param(struct mtk_vcodec_dec_ctx *ctx, enum vdec_get_param_type type,
104		      void *out)
105{
106	int ret = 0;
107
108	if (!ctx->drv_handle)
109		return -EIO;
110
111	mtk_vdec_lock(ctx);
112	ret = ctx->dec_if->get_param(ctx->drv_handle, type, out);
113	mtk_vdec_unlock(ctx);
114
115	return ret;
116}
117
118void vdec_if_deinit(struct mtk_vcodec_dec_ctx *ctx)
119{
120	if (!ctx->drv_handle)
121		return;
122
123	mtk_vcodec_dec_enable_hardware(ctx, ctx->hw_id);
124	ctx->dec_if->deinit(ctx->drv_handle);
125	mtk_vcodec_dec_disable_hardware(ctx, ctx->hw_id);
126
127	ctx->drv_handle = NULL;
128}