diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/runtime/queue/src/queue_access.h')
-rw-r--r-- | drivers/staging/media/atomisp/pci/runtime/queue/src/queue_access.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/runtime/queue/src/queue_access.h b/drivers/staging/media/atomisp/pci/runtime/queue/src/queue_access.h new file mode 100644 index 0000000000..d5107adcce --- /dev/null +++ b/drivers/staging/media/atomisp/pci/runtime/queue/src/queue_access.h @@ -0,0 +1,87 @@ +/* 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 __QUEUE_ACCESS_H +#define __QUEUE_ACCESS_H + +#include <linux/errno.h> + +#include <type_support.h> +#include <ia_css_queue_comm.h> +#include <ia_css_circbuf.h> + +#define QUEUE_IGNORE_START_FLAG 0x0001 +#define QUEUE_IGNORE_END_FLAG 0x0002 +#define QUEUE_IGNORE_SIZE_FLAG 0x0004 +#define QUEUE_IGNORE_STEP_FLAG 0x0008 +#define QUEUE_IGNORE_DESC_FLAGS_MAX 0x000f + +#define QUEUE_IGNORE_SIZE_START_STEP_FLAGS \ + (QUEUE_IGNORE_SIZE_FLAG | \ + QUEUE_IGNORE_START_FLAG | \ + QUEUE_IGNORE_STEP_FLAG) + +#define QUEUE_IGNORE_SIZE_END_STEP_FLAGS \ + (QUEUE_IGNORE_SIZE_FLAG | \ + QUEUE_IGNORE_END_FLAG | \ + QUEUE_IGNORE_STEP_FLAG) + +#define QUEUE_IGNORE_START_END_STEP_FLAGS \ + (QUEUE_IGNORE_START_FLAG | \ + QUEUE_IGNORE_END_FLAG | \ + QUEUE_IGNORE_STEP_FLAG) + +#define QUEUE_CB_DESC_INIT(cb_desc) \ + do { \ + (cb_desc)->size = 0; \ + (cb_desc)->step = 0; \ + (cb_desc)->start = 0; \ + (cb_desc)->end = 0; \ + } while (0) + +struct ia_css_queue { + u8 type; /* Specify remote/local type of access */ + u8 location; /* Cell location for queue */ + u8 proc_id; /* Processor id for queue access */ + union { + ia_css_circbuf_t cb_local; + struct { + u32 cb_desc_addr; /*Circbuf desc address for remote queues*/ + u32 cb_elems_addr; /*Circbuf elements addr for remote queue*/ + } remote; + } desc; +}; + +int ia_css_queue_load( + struct ia_css_queue *rdesc, + ia_css_circbuf_desc_t *cb_desc, + uint32_t ignore_desc_flags); + +int ia_css_queue_store( + struct ia_css_queue *rdesc, + ia_css_circbuf_desc_t *cb_desc, + uint32_t ignore_desc_flags); + +int ia_css_queue_item_load( + struct ia_css_queue *rdesc, + u8 position, + ia_css_circbuf_elem_t *item); + +int ia_css_queue_item_store( + struct ia_css_queue *rdesc, + u8 position, + ia_css_circbuf_elem_t *item); + +#endif /* __QUEUE_ACCESS_H */ |