1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Support for Intel Camera Imaging ISP subsystem. 4 * Copyright (c) 2010 - 2015, Intel Corporation. 5 */ 6 7 #ifndef __IA_CSS_ISYS_COMM_H 8 #define __IA_CSS_ISYS_COMM_H 9 10 #include <type_support.h> 11 #include <input_system.h> 12 13 #include <platform_support.h> /* inline */ 14 #include <input_system_global.h> 15 #include <ia_css_stream_public.h> /* IA_CSS_STREAM_MAX_ISYS_STREAM_PER_CH */ 16 17 #define SH_CSS_NODES_PER_THREAD 2 18 #define SH_CSS_MAX_ISYS_CHANNEL_NODES (SH_CSS_MAX_SP_THREADS * SH_CSS_NODES_PER_THREAD) 19 20 /* 21 * a) ia_css_isys_stream_h & ia_css_isys_stream_cfg_t come from host. 22 * 23 * b) Here it is better to use actual structures for stream handle 24 * instead of opaque handles. Otherwise, we need to have another 25 * communication channel to interpret that opaque handle(this handle is 26 * maintained by host and needs to be populated to sp for every stream open) 27 * */ 28 typedef virtual_input_system_stream_t *ia_css_isys_stream_h; 29 typedef virtual_input_system_stream_cfg_t ia_css_isys_stream_cfg_t; 30 31 /* 32 * error check for ISYS APIs. 33 * */ 34 typedef bool ia_css_isys_error_t; 35 ia_css_isys_generate_stream_id(u32 sp_thread_id,uint32_t stream_id)36static inline uint32_t ia_css_isys_generate_stream_id( 37 u32 sp_thread_id, 38 uint32_t stream_id) 39 { 40 return sp_thread_id * IA_CSS_STREAM_MAX_ISYS_STREAM_PER_CH + stream_id; 41 } 42 43 #endif /*_IA_CSS_ISYS_COMM_H */ 44