drivers/staging/media/atomisp/pci/isp/kernels/raw/raw_1.0/ia_css_raw.host.c
Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/isp/kernels/raw/raw_1.0/ia_css_raw.host.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/staging/media/atomisp/pci/isp/kernels/raw/raw_1.0/ia_css_raw.host.c- Extension
.c- Size
- 3638 bytes
- Lines
- 114
- Domain
- Driver Families
- Bucket
- drivers/staging
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
ia_css_frame.hia_css_types.hsh_css_defs.hia_css_debug.hassert_support.hia_css_isp_configs.hisp.hisp/modes/interface/isp_types.hia_css_raw.host.h
Detected Declarations
function css2isp_stream_formatfunction ia_css_raw_configfunction ia_css_raw_configure
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/*
* Support for Intel Camera Imaging ISP subsystem.
* Copyright (c) 2015, Intel Corporation.
*/
#include "ia_css_frame.h"
#include "ia_css_types.h"
#include "sh_css_defs.h"
#include "ia_css_debug.h"
#include "assert_support.h"
#define IA_CSS_INCLUDE_CONFIGURATIONS
#include "ia_css_isp_configs.h"
#include "isp.h"
#include "isp/modes/interface/isp_types.h"
#include "ia_css_raw.host.h"
static const struct ia_css_raw_configuration default_config = {
.pipe = (struct sh_css_sp_pipeline *)NULL,
};
/* MW: These areMIPI / ISYS properties, not camera function properties */
static enum sh_stream_format css2isp_stream_format(enum atomisp_input_format from)
{
switch (from) {
case ATOMISP_INPUT_FORMAT_YUV420_8_LEGACY:
return sh_stream_format_yuv420_legacy;
case ATOMISP_INPUT_FORMAT_YUV420_8:
case ATOMISP_INPUT_FORMAT_YUV420_10:
case ATOMISP_INPUT_FORMAT_YUV420_16:
return sh_stream_format_yuv420;
case ATOMISP_INPUT_FORMAT_YUV422_8:
case ATOMISP_INPUT_FORMAT_YUV422_10:
case ATOMISP_INPUT_FORMAT_YUV422_16:
return sh_stream_format_yuv422;
case ATOMISP_INPUT_FORMAT_RGB_444:
case ATOMISP_INPUT_FORMAT_RGB_555:
case ATOMISP_INPUT_FORMAT_RGB_565:
case ATOMISP_INPUT_FORMAT_RGB_666:
case ATOMISP_INPUT_FORMAT_RGB_888:
return sh_stream_format_rgb;
case ATOMISP_INPUT_FORMAT_RAW_6:
case ATOMISP_INPUT_FORMAT_RAW_7:
case ATOMISP_INPUT_FORMAT_RAW_8:
case ATOMISP_INPUT_FORMAT_RAW_10:
case ATOMISP_INPUT_FORMAT_RAW_12:
case ATOMISP_INPUT_FORMAT_RAW_14:
case ATOMISP_INPUT_FORMAT_RAW_16:
return sh_stream_format_raw;
case ATOMISP_INPUT_FORMAT_BINARY_8:
default:
return sh_stream_format_raw;
}
}
int ia_css_raw_config(struct sh_css_isp_raw_isp_config *to,
const struct ia_css_raw_configuration *from,
unsigned int size)
{
unsigned int elems_a = ISP_VEC_NELEMS;
const struct ia_css_frame_info *in_info = from->in_info;
const struct ia_css_frame_info *internal_info = from->internal_info;
int ret;
if (!IS_ISP2401 || !in_info)
in_info = internal_info;
ret = ia_css_dma_configure_from_info(&to->port_b, in_info);
if (ret)
return ret;
/* Assume divisiblity here, may need to generalize to fixed point. */
assert((in_info->format == IA_CSS_FRAME_FORMAT_RAW_PACKED) ||
(elems_a % to->port_b.elems == 0));
to->width_a_over_b = elems_a / to->port_b.elems;
to->inout_port_config = from->pipe->inout_port_config;
to->format = in_info->format;
to->required_bds_factor = from->pipe->required_bds_factor;
to->two_ppc = from->two_ppc;
to->stream_format = css2isp_stream_format(from->stream_format);
to->deinterleaved = from->deinterleaved;
if (IS_ISP2401) {
to->start_column = in_info->crop_info.start_column;
to->start_line = in_info->crop_info.start_line;
to->enable_left_padding = from->enable_left_padding;
}
Annotation
- Immediate include surface: `ia_css_frame.h`, `ia_css_types.h`, `sh_css_defs.h`, `ia_css_debug.h`, `assert_support.h`, `ia_css_isp_configs.h`, `isp.h`, `isp/modes/interface/isp_types.h`.
- Detected declarations: `function css2isp_stream_format`, `function ia_css_raw_config`, `function ia_css_raw_configure`.
- Atlas domain: Driver Families / drivers/staging.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.