drivers/staging/media/atomisp/pci/sh_css_stream_format.c

Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/sh_css_stream_format.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/media/atomisp/pci/sh_css_stream_format.c
Extension
.c
Size
1618 bytes
Lines
69
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.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2015, Intel Corporation.
 */

#include "sh_css_stream_format.h"
#include <ia_css_stream_format.h>

unsigned int sh_css_stream_format_2_bits_per_subpixel(
    enum atomisp_input_format format)
{
	unsigned int rval;

	switch (format) {
	case ATOMISP_INPUT_FORMAT_RGB_444:
		rval = 4;
		break;
	case ATOMISP_INPUT_FORMAT_RGB_555:
		rval = 5;
		break;
	case ATOMISP_INPUT_FORMAT_RGB_565:
	case ATOMISP_INPUT_FORMAT_RGB_666:
	case ATOMISP_INPUT_FORMAT_RAW_6:
		rval = 6;
		break;
	case ATOMISP_INPUT_FORMAT_RAW_7:
		rval = 7;
		break;
	case ATOMISP_INPUT_FORMAT_YUV420_8_LEGACY:
	case ATOMISP_INPUT_FORMAT_YUV420_8:
	case ATOMISP_INPUT_FORMAT_YUV422_8:
	case ATOMISP_INPUT_FORMAT_RGB_888:
	case ATOMISP_INPUT_FORMAT_RAW_8:
	case ATOMISP_INPUT_FORMAT_BINARY_8:
	case ATOMISP_INPUT_FORMAT_USER_DEF1:
	case ATOMISP_INPUT_FORMAT_USER_DEF2:
	case ATOMISP_INPUT_FORMAT_USER_DEF3:
	case ATOMISP_INPUT_FORMAT_USER_DEF4:
	case ATOMISP_INPUT_FORMAT_USER_DEF5:
	case ATOMISP_INPUT_FORMAT_USER_DEF6:
	case ATOMISP_INPUT_FORMAT_USER_DEF7:
	case ATOMISP_INPUT_FORMAT_USER_DEF8:
		rval = 8;
		break;
	case ATOMISP_INPUT_FORMAT_YUV420_10:
	case ATOMISP_INPUT_FORMAT_YUV422_10:
	case ATOMISP_INPUT_FORMAT_RAW_10:
		rval = 10;
		break;
	case ATOMISP_INPUT_FORMAT_RAW_12:
		rval = 12;
		break;
	case ATOMISP_INPUT_FORMAT_RAW_14:
		rval = 14;
		break;
	case ATOMISP_INPUT_FORMAT_RAW_16:
	case ATOMISP_INPUT_FORMAT_YUV420_16:
	case ATOMISP_INPUT_FORMAT_YUV422_16:
		rval = 16;
		break;
	default:
		rval = 0;
		break;
	}

	return rval;
}

Annotation

Implementation Notes