| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Support for Intel Camera Imaging ISP subsystem. |
| * Copyright (c) 2010 - 2015, Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| */ |
| |
| #ifndef __IA_CSS_QUEUE_COMM_H |
| #define __IA_CSS_QUEUE_COMM_H |
| |
| #include "type_support.h" |
| #include "ia_css_circbuf.h" |
| /***************************************************************************** |
| * Queue Public Data Structures |
| *****************************************************************************/ |
| |
| /* Queue location specifier */ |
| /* Avoiding enums to save space */ |
| #define IA_CSS_QUEUE_LOC_HOST 0 |
| #define IA_CSS_QUEUE_LOC_SP 1 |
| #define IA_CSS_QUEUE_LOC_ISP 2 |
| |
| /* Queue type specifier */ |
| /* Avoiding enums to save space */ |
| #define IA_CSS_QUEUE_TYPE_LOCAL 0 |
| #define IA_CSS_QUEUE_TYPE_REMOTE 1 |
| |
| /* for DDR Allocated queues, |
| allocate minimum these many elements. |
| DDR->SP' DMEM DMA transfer needs 32byte aligned address. |
| Since each element size is 4 bytes, 8 elements need to be |
| DMAed to access single element.*/ |
| #define IA_CSS_MIN_ELEM_COUNT 8 |
| #define IA_CSS_DMA_XFER_MASK (IA_CSS_MIN_ELEM_COUNT - 1) |
| |
| /* Remote Queue object descriptor */ |
| struct ia_css_queue_remote { |
| u32 cb_desc_addr; /*Circbuf desc address for remote queues*/ |
| u32 cb_elems_addr; /*Circbuf elements addr for remote queue*/ |
| u8 location; /* Cell location for queue */ |
| u8 proc_id; /* Processor id for queue access */ |
| }; |
| |
| typedef struct ia_css_queue_remote ia_css_queue_remote_t; |
| |
| #endif /* __IA_CSS_QUEUE_COMM_H */ |
