diff options
Diffstat (limited to 'drivers/media/platform/mtk-vcodec/vdec_drv_if.c')
| -rw-r--r-- | drivers/media/platform/mtk-vcodec/vdec_drv_if.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c new file mode 100644 index 000000000..5ffc468dd --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2016 MediaTek Inc. + * Author: PC Chen <pc.chen@mediatek.com> + * Tiffany Lin <tiffany.lin@mediatek.com> + * + * 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. + */ + +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/slab.h> + +#include "vdec_drv_if.h" +#include "mtk_vcodec_dec.h" +#include "vdec_drv_base.h" +#include "mtk_vcodec_dec_pm.h" +#include "mtk_vpu.h" + +const struct vdec_common_if *get_h264_dec_comm_if(void); +const struct vdec_common_if *get_vp8_dec_comm_if(void); +const struct vdec_common_if *get_vp9_dec_comm_if(void); + +int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc) +{ + int ret = 0; + + switch (fourcc) { + case V4L2_PIX_FMT_H264: + ctx->dec_if = get_h264_dec_comm_if(); + break; + case V4L2_PIX_FMT_VP8: + ctx->dec_if = get_vp8_dec_comm_if(); + break; + case V4L2_PIX_FMT_VP9: + ctx->dec_if = get_vp9_dec_comm_if(); + break; + default: + return -EINVAL; + } + + mtk_vdec_lock(ctx); + mtk_vcodec_dec_clock_on(&ctx->dev->pm); + ret = ctx->dec_if->init(ctx, &ctx->drv_handle); + mtk_vcodec_dec_clock_off(&ctx->dev->pm); + mtk_vdec_unlock(ctx); + + return ret; +} + +int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs, + struct vdec_fb *fb, bool *res_chg) +{ + int ret = 0; + + if (bs) { + if ((bs->dma_addr & 63) != 0) { + mtk_v4l2_err("bs dma_addr should 64 byte align"); + return -EINVAL; + } + } + + if (fb) { + if (((fb->base_y.dma_addr & 511) != 0) || + ((fb->base_c.dma_addr & 511) != 0)) { + mtk_v4l2_err("frame buffer dma_addr should 512 byte align"); + return -EINVAL; + } + } + + if (ctx->drv_handle == 0) + return -EIO; + + mtk_vdec_lock(ctx); + + mtk_vcodec_set_curr_ctx(ctx->dev, ctx); + mtk_vcodec_dec_clock_on(&ctx->dev->pm); + enable_irq(ctx->dev->dec_irq); + ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg); + disable_irq(ctx->dev->dec_irq); + mtk_vcodec_dec_clock_off(&ctx->dev->pm); + mtk_vcodec_set_curr_ctx(ctx->dev, NULL); + + mtk_vdec_unlock(ctx); + + return ret; +} + +int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum vdec_get_param_type type, + void *out) +{ + int ret = 0; + + if (ctx->drv_handle == 0) + return -EIO; + + mtk_vdec_lock(ctx); + ret = ctx->dec_if->get_param(ctx->drv_handle, type, out); + mtk_vdec_unlock(ctx); + + return ret; +} + +void vdec_if_deinit(struct mtk_vcodec_ctx *ctx) +{ + if (ctx->drv_handle == 0) + return; + + mtk_vdec_lock(ctx); + mtk_vcodec_dec_clock_on(&ctx->dev->pm); + ctx->dec_if->deinit(ctx->drv_handle); + mtk_vcodec_dec_clock_off(&ctx->dev->pm); + mtk_vdec_unlock(ctx); + + ctx->drv_handle = 0; +} |