diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/runtime/queue/interface/ia_css_queue_comm.h')
-rw-r--r-- | drivers/staging/media/atomisp/pci/runtime/queue/interface/ia_css_queue_comm.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/runtime/queue/interface/ia_css_queue_comm.h b/drivers/staging/media/atomisp/pci/runtime/queue/interface/ia_css_queue_comm.h new file mode 100644 index 0000000000..1379ae8f8c --- /dev/null +++ b/drivers/staging/media/atomisp/pci/runtime/queue/interface/ia_css_queue_comm.h @@ -0,0 +1,54 @@ +/* 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 */ |