/*
* Copyright 2012 - 15 Advanced Micro Devices , Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*
* Authors : AMD
*
*/
#include "dm_services.h"
#include "dm_helpers.h"
#include "core_types.h"
/*******************************************************************************
* Private functions
******************************************************************************/
static bool dc_sink_construct(struct dc_sink *sink, const struct dc_sink_init_data *init_params)
{
struct dc_link *link = init_params->link;
if (!link)
return false ;
sink->sink_signal = init_params->sink_signal;
sink->link = link;
sink->ctx = link->ctx;
sink->dongle_max_pix_clk = init_params->dongle_max_pix_clk;
sink->converter_disable_audio = init_params->converter_disable_audio;
sink->dc_container_id = NULL;
sink->sink_id = init_params->link->ctx->dc_sink_id_count;
// increment dc_sink_id_count because we don't want two sinks with same ID
// unless they are actually the same
init_params->link->ctx->dc_sink_id_count++;
return true ;
}
/*******************************************************************************
* Public functions
******************************************************************************/
void dc_sink_retain(struct dc_sink *sink)
{
kref_get(&sink->refcount);
}
static void dc_sink_free(struct kref *kref)
{
struct dc_sink *sink = container_of(kref, struct dc_sink, refcount);
kfree(sink->dc_container_id);
kfree(sink);
}
void dc_sink_release(struct dc_sink *sink)
{
kref_put(&sink->refcount, dc_sink_free);
}
struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params)
{
struct dc_sink *sink = kzalloc(sizeof (*sink), GFP_KERNEL);
if (NULL == sink)
goto alloc_fail;
if (false == dc_sink_construct(sink, init_params))
goto construct_fail;
kref_init(&sink->refcount);
return sink;
construct_fail:
kfree(sink);
alloc_fail:
return NULL;
}
/*******************************************************************************
* Protected functions - visible only inside of DC ( not visible in DM )
******************************************************************************/
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