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      1 /*
      2  * Copyright@ Samsung Electronics Co. LTD
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15 */
     16 
     17 #ifndef EXYNOS_GSC_H_
     18 #define EXYNOS_GSC_H_
     19 
     20 #ifdef __cplusplus
     21 extern "C" {
     22 #endif
     23 
     24 //#define LOG_NDEBUG 0
     25 #define LOG_TAG "libexynosgscaler"
     26 #include <cutils/log.h>
     27 
     28 #include <sys/types.h>
     29 #include <sys/ioctl.h>
     30 #include <videodev2.h>
     31 #include <fcntl.h>
     32 #include <stdbool.h>
     33 #include <string.h>
     34 #include <unistd.h>
     35 #include <stdio.h>
     36 #include <stdlib.h>
     37 #include <time.h>
     38 #include <system/graphics.h>
     39 #include "exynos_gscaler.h"
     40 
     41 #include "exynos_format.h"
     42 #include "ExynosMutex.h"
     43 #include "exynos_v4l2.h"
     44 
     45 //#include "ExynosBuffer.h"
     46 
     47 #define NUM_OF_GSC_PLANES           (3)
     48 #define MAX_BUFFERS_GSCALER_OUT (3)
     49 #define GSCALER_SUBDEV_PAD_SINK     (0)
     50 #define GSCALER_SUBDEV_PAD_SOURCE   (1)
     51 #define MIXER_V_SUBDEV_PAD_SINK     (0)
     52 #define MIXER_V_SUBDEV_PAD_SOURCE   (3)
     53 #define FIMD_SUBDEV_PAD_SINK     (0)
     54 #define MAX_BUFFERS                 (6)
     55 
     56 #define NUM_OF_GSC_HW               (4)
     57 #define NODE_NUM_GSC_0              (23)
     58 #define NODE_NUM_GSC_1              (26)
     59 #define NODE_NUM_GSC_2              (29)
     60 #define NODE_NUM_GSC_3              (32)
     61 
     62 #define PFX_NODE_GSC                "/dev/video"
     63 #define PFX_NODE_MEDIADEV         "/dev/media"
     64 #define PFX_MXR_ENTITY              "s5p-mixer%d"
     65 #define PFX_FIMD_ENTITY             "s3c-fb-window%d"
     66 #define PFX_GSC_VIDEODEV_ENTITY   "exynos-gsc.%d.output"
     67 #define PFX_GSC_SUBDEV_ENTITY     "exynos-gsc-sd.%d"
     68 #define PFX_SUB_DEV		"/dev/v4l-subdev%d"
     69 #define GSC_VD_PAD_SOURCE	0
     70 #define GSC_SD_PAD_SINK	0
     71 #define GSC_SD_PAD_SOURCE	1
     72 #define GSC_OUT_PAD_SINK	0
     73 //#define GSC_OUT_DMA_BLOCKING
     74 //#define GSC_OUT_DELAYED_STREAMON
     75 
     76 #define GSC_VERSION GSC_EVT1
     77 
     78 #if (GSC_VERSION == GSC_EVT0)
     79 #define GSC_MIN_W_SIZE (64)
     80 #define GSC_MIN_H_SIZE (32)
     81 #else
     82 #define GSC_MIN_W_SIZE (32)
     83 #define GSC_MIN_H_SIZE (8)
     84 #endif
     85 
     86 #define MAX_GSC_WAITING_TIME_FOR_TRYLOCK (16000) // 16msec
     87 #define GSC_WAITING_TIME_FOR_TRYLOCK      (8000) //  8msec
     88 
     89 struct gsc_info {
     90     unsigned int       width;
     91     unsigned int       height;
     92     unsigned int       crop_left;
     93     unsigned int       crop_top;
     94     unsigned int       crop_width;
     95     unsigned int       crop_height;
     96     unsigned int       v4l2_colorformat;
     97     unsigned int       cacheable;
     98     unsigned int       mode_drm;
     99 
    100     int                rotation;
    101     int                flip_horizontal;
    102     int                flip_vertical;
    103     bool               csc_range;
    104     bool               dirty;
    105 
    106     void              *addr[NUM_OF_GSC_PLANES];
    107     int                acquireFenceFd;
    108     int                releaseFenceFd;
    109     bool               stream_on;
    110 
    111     enum v4l2_buf_type buf_type;
    112     struct v4l2_format format;
    113     struct v4l2_buffer buffer;
    114     bool               buffer_queued;
    115     struct v4l2_plane  planes[NUM_OF_GSC_PLANES];
    116     struct v4l2_crop   crop;
    117     int             src_buf_idx;
    118     int             qbuf_cnt;
    119 };
    120 
    121 struct GSC_HANDLE {
    122     int              gsc_fd;
    123     int              gsc_id;
    124     struct gsc_info  src;
    125     struct gsc_info  dst;
    126     exynos_gsc_img   src_img;
    127     exynos_gsc_img   dst_img;
    128     void            *op_mutex;
    129     void            *obj_mutex[NUM_OF_GSC_HW];
    130     void            *cur_obj_mutex;
    131     bool             flag_local_path;
    132     bool             flag_exclusive_open;
    133     struct media_device *media0;
    134     struct media_entity *gsc_sd_entity;
    135     struct media_entity *gsc_vd_entity;
    136     struct media_entity *sink_sd_entity;
    137     int     gsc_mode;
    138     int     out_mode;
    139     bool    allow_drm;
    140     bool    protection_enabled;
    141 };
    142 
    143 extern int exynos_gsc_out_stop(void *handle);
    144 #ifdef __cplusplus
    145 }
    146 #endif
    147 
    148 #endif //__EXYNOS_MUTEX_H__
    149