diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/ia_css_buffer.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/ia_css_buffer.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/ia_css_buffer.h b/drivers/staging/media/atomisp/pci/ia_css_buffer.h new file mode 100644 index 000000000000..38e1f4791029 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/ia_css_buffer.h @@ -0,0 +1,85 @@ +/* + * 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_BUFFER_H +#define __IA_CSS_BUFFER_H + +/* @file + * This file contains datastructures and types for buffers used in CSS + */ + +#include <type_support.h> +#include "ia_css_types.h" +#include "ia_css_timer.h" + +/* Enumeration of buffer types. Buffers can be queued and de-queued + * to hand them over between IA and ISP. + */ +enum ia_css_buffer_type { + IA_CSS_BUFFER_TYPE_INVALID = -1, + IA_CSS_BUFFER_TYPE_3A_STATISTICS = 0, + IA_CSS_BUFFER_TYPE_DIS_STATISTICS, + IA_CSS_BUFFER_TYPE_LACE_STATISTICS, + IA_CSS_BUFFER_TYPE_INPUT_FRAME, + IA_CSS_BUFFER_TYPE_OUTPUT_FRAME, + IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME, + IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME, + IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME, + IA_CSS_BUFFER_TYPE_RAW_OUTPUT_FRAME, + IA_CSS_BUFFER_TYPE_CUSTOM_INPUT, + IA_CSS_BUFFER_TYPE_CUSTOM_OUTPUT, + IA_CSS_BUFFER_TYPE_METADATA, + IA_CSS_BUFFER_TYPE_PARAMETER_SET, + IA_CSS_BUFFER_TYPE_PER_FRAME_PARAMETER_SET, + IA_CSS_NUM_DYNAMIC_BUFFER_TYPE, + IA_CSS_NUM_BUFFER_TYPE +}; + +/* Driver API is not SP/ISP visible, 64 bit types not supported on hivecc */ + +/* Buffer structure. This is a container structure that enables content + * independent buffer queues and access functions. + */ +struct ia_css_buffer { + enum ia_css_buffer_type type; /** Buffer type. */ + unsigned int exp_id; + /** exposure id for this buffer; 0 = not available + see ia_css_event_public.h for more detail. */ + union { + struct ia_css_isp_3a_statistics + *stats_3a; /** 3A statistics & optionally RGBY statistics. */ + struct ia_css_isp_dvs_statistics *stats_dvs; /** DVS statistics. */ + struct ia_css_isp_skc_dvs_statistics *stats_skc_dvs; /** SKC DVS statistics. */ + struct ia_css_frame *frame; /** Frame buffer. */ + struct ia_css_acc_param *custom_data; /** Custom buffer. */ + struct ia_css_metadata *metadata; /** Sensor metadata. */ + } data; /** Buffer data pointer. */ + u64 driver_cookie; /** cookie for the driver */ + struct ia_css_time_meas + timing_data; /** timing data (readings from the timer) */ + struct ia_css_clock_tick + isys_eof_clock_tick; /** ISYS's end of frame timer tick*/ +}; + +/* @brief Dequeue param buffers from sp2host_queue + * + * @return None + * + * This function must be called at every driver interrupt handler to prevent + * overflow of sp2host_queue. + */ +void +ia_css_dequeue_param_buffers(void); + +#endif /* __IA_CSS_BUFFER_H */ |