/* * 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 * */ #ifndef __DAL_AUX_ENGINE_H__ #define __DAL_AUX_ENGINE_H__ #include "dc_ddc_types.h" struct aux_engine; struct aux_engine_funcs { void (*destroy)( struct aux_engine **ptr); bool (*acquire_engine)( struct aux_engine *engine); void (*configure)( struct aux_engine *engine, union aux_config cfg); void (*submit_channel_request)( struct aux_engine *engine, struct aux_request_transaction_data *request); void (*process_channel_reply)( struct aux_engine *engine, struct aux_reply_transaction_data *reply); int (*read_channel_reply)( struct aux_engine *engine, uint32_t size, uint8_t *buffer, uint8_t *reply_result, uint32_t *sw_status); enum aux_channel_operation_result (*get_channel_status)( struct aux_engine *engine, uint8_t *returned_bytes); bool (*is_engine_available) ( struct aux_engine *engine); }; struct aux_engine { struct engine base; const struct aux_engine_funcs *funcs; /* following values are expressed in milliseconds */ uint32_t delay; uint32_t max_defer_write_retry; bool acquire_reset; }; void dal_aux_engine_construct( struct aux_engine *engine, struct dc_context *ctx); void dal_aux_engine_destruct( struct aux_engine *engine); bool dal_aux_engine_submit_request( struct engine *ptr, struct i2caux_transaction_request *request, bool middle_of_transaction); bool dal_aux_engine_acquire( struct engine *ptr, struct ddc *ddc); enum i2caux_engine_type dal_aux_engine_get_engine_type( const struct engine *engine); #endif