diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/base/circbuf/interface/ia_css_circbuf_desc.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/css2400/base/circbuf/interface/ia_css_circbuf_desc.h | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/base/circbuf/interface/ia_css_circbuf_desc.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/base/circbuf/interface/ia_css_circbuf_desc.h deleted file mode 100644 index 8dd7cd6..0000000 --- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/base/circbuf/interface/ia_css_circbuf_desc.h +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Support for Intel Camera Imaging ISP subsystem. - * Copyright (c) 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_CIRCBUF_DESC_H_ -#define _IA_CSS_CIRCBUF_DESC_H_ - -#include <type_support.h> -#include <math_support.h> -#include <platform_support.h> -#include <sp.h> -#include "ia_css_circbuf_comm.h" -/**************************************************************** - * - * Inline functions. - * - ****************************************************************/ -/** - * @brief Test if the circular buffer is empty. - * - * @param cb_desc The pointer to the circular buffer descriptor. - * - * @return - * - true when it is empty. - * - false when it is not empty. - */ -static inline bool ia_css_circbuf_desc_is_empty( - ia_css_circbuf_desc_t *cb_desc) -{ - OP___assert(cb_desc != NULL); - return (cb_desc->end == cb_desc->start); -} - -/** - * @brief Test if the circular buffer descriptor is full. - * - * @param cb_desc The pointer to the circular buffer - * descriptor. - * - * @return - * - true when it is full. - * - false when it is not full. - */ -static inline bool ia_css_circbuf_desc_is_full( - ia_css_circbuf_desc_t *cb_desc) -{ - OP___assert(cb_desc != NULL); - return (OP_std_modadd(cb_desc->end, 1, cb_desc->size) == cb_desc->start); -} - -/** - * @brief Initialize the circular buffer descriptor - * - * @param cb_desc The pointer circular buffer descriptor - * @param size The size of the circular buffer - */ -static inline void ia_css_circbuf_desc_init( - ia_css_circbuf_desc_t *cb_desc, - int8_t size) -{ - OP___assert(cb_desc != NULL); - cb_desc->size = size; -} - -/** - * @brief Get a position in the circular buffer descriptor. - * - * @param cb The pointer to the circular buffer descriptor. - * @param base The base position. - * @param offset The offset. - * - * @return the position in the circular buffer descriptor. - */ -static inline uint8_t ia_css_circbuf_desc_get_pos_at_offset( - ia_css_circbuf_desc_t *cb_desc, - uint32_t base, - int offset) -{ - uint8_t dest; - OP___assert(cb_desc != NULL); - OP___assert(cb_desc->size > 0); - - /* step 1: adjust the offset */ - while (offset < 0) { - offset += cb_desc->size; - } - - /* step 2: shift and round by the upper limit */ - dest = OP_std_modadd(base, offset, cb_desc->size); - - return dest; -} - -/** - * @brief Get the offset between two positions in the circular buffer - * descriptor. - * Get the offset from the source position to the terminal position, - * along the direction in which the new elements come in. - * - * @param cb_desc The pointer to the circular buffer descriptor. - * @param src_pos The source position. - * @param dest_pos The terminal position. - * - * @return the offset. - */ -static inline int ia_css_circbuf_desc_get_offset( - ia_css_circbuf_desc_t *cb_desc, - uint32_t src_pos, - uint32_t dest_pos) -{ - int offset; - OP___assert(cb_desc != NULL); - - offset = (int)(dest_pos - src_pos); - offset += (offset < 0) ? cb_desc->size : 0; - - return offset; -} - -/** - * @brief Get the number of available elements. - * - * @param cb_desc The pointer to the circular buffer. - * - * @return The number of available elements. - */ -static inline uint32_t ia_css_circbuf_desc_get_num_elems( - ia_css_circbuf_desc_t *cb_desc) -{ - int num; - OP___assert(cb_desc != NULL); - - num = ia_css_circbuf_desc_get_offset(cb_desc, - cb_desc->start, - cb_desc->end); - - return (uint32_t)num; -} - -/** - * @brief Get the number of free elements. - * - * @param cb_desc The pointer to the circular buffer descriptor. - * - * @return: The number of free elements. - */ -static inline uint32_t ia_css_circbuf_desc_get_free_elems( - ia_css_circbuf_desc_t *cb_desc) -{ - uint32_t num; - OP___assert(cb_desc != NULL); - - num = ia_css_circbuf_desc_get_offset(cb_desc, - cb_desc->start, - cb_desc->end); - - return (cb_desc->size - num); -} -#endif /*_IA_CSS_CIRCBUF_DESC_H_ */ |
