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/home/jvcleave/Desktop/RASPBERRY_PI/userland/interface/mmal/mmal_component.h
00001 /*
00002 Copyright (c) 2012, Broadcom Europe Ltd
00003 All rights reserved.
00004 
00005 Redistribution and use in source and binary forms, with or without
00006 modification, are permitted provided that the following conditions are met:
00007     * Redistributions of source code must retain the above copyright
00008       notice, this list of conditions and the following disclaimer.
00009     * Redistributions in binary form must reproduce the above copyright
00010       notice, this list of conditions and the following disclaimer in the
00011       documentation and/or other materials provided with the distribution.
00012     * Neither the name of the copyright holder nor the
00013       names of its contributors may be used to endorse or promote products
00014       derived from this software without specific prior written permission.
00015 
00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
00017 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00018 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00019 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
00020 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00021 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00022 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00023 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00025 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00026 */
00027 
00028 #ifndef MMAL_COMPONENT_H
00029 #define MMAL_COMPONENT_H
00030 
00031 #ifdef __cplusplus
00032 extern "C" {
00033 #endif
00034 
00039 /* @{ */
00040 
00041 #include "mmal_types.h"
00042 #include "mmal_port.h"
00043 
00044 struct MMAL_COMPONENT_PRIVATE_T;
00045 typedef struct MMAL_COMPONENT_PRIVATE_T MMAL_COMPONENT_PRIVATE_T;
00046 
00048 typedef struct MMAL_COMPONENT_T
00049 {
00051    struct MMAL_COMPONENT_PRIVATE_T *priv;
00052 
00054    struct MMAL_COMPONENT_USERDATA_T *userdata;
00055 
00057    const char *name;
00058 
00060    uint32_t is_enabled;
00061 
00067    MMAL_PORT_T *control;
00068 
00069    uint32_t    input_num;   
00070    MMAL_PORT_T **input;     
00072    uint32_t    output_num;  
00073    MMAL_PORT_T **output;    
00075    uint32_t    clock_num;   
00076    MMAL_PORT_T **clock;     
00078    uint32_t    port_num;    
00079    MMAL_PORT_T **port;      
00083    uint32_t id;
00084 
00085 } MMAL_COMPONENT_T;
00086 
00097 MMAL_STATUS_T mmal_component_create(const char *name,
00098                                     MMAL_COMPONENT_T **component);
00099 
00108 void mmal_component_acquire(MMAL_COMPONENT_T *component);
00109 
00119 MMAL_STATUS_T mmal_component_release(MMAL_COMPONENT_T *component);
00120 
00128 MMAL_STATUS_T mmal_component_destroy(MMAL_COMPONENT_T *component);
00129 
00134 MMAL_STATUS_T mmal_component_enable(MMAL_COMPONENT_T *component);
00135 
00140 MMAL_STATUS_T mmal_component_disable(MMAL_COMPONENT_T *component);
00141 
00142 /* @} */
00143 
00144 #ifdef __cplusplus
00145 }
00146 #endif
00147 
00148 #endif /* MMAL_COMPONENT_H */
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