linux/drivers/media/platform/ti-vpe/csc.h
Benoit Parrot 3ff3a712a9 media: ti-vpe: vpe: don't rely on colorspace member for conversion
Up to now VPE was relying on the colorspace value of struct v4l2_format
as an indication to perform color space conversion from YUV to RGB or
not.

Instead we should used the source/destination fourcc codes as a more
reliable indication to perform color space conversion or not.

To do so, we rework the csc module to use "struct v4l2_format *" as
parameters, and reorganize the coefficients tables in a more logical
way.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-10 13:54:22 -03:00

66 lines
1.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2013 Texas Instruments Inc.
*
* David Griego, <dagriego@biglakesoftware.com>
* Dale Farnsworth, <dale@farnsworth.org>
* Archit Taneja, <archit@ti.com>
*/
#ifndef TI_CSC_H
#define TI_CSC_H
/* VPE color space converter regs */
#define CSC_CSC00 0x00
#define CSC_A0_MASK 0x1fff
#define CSC_A0_SHIFT 0
#define CSC_B0_MASK 0x1fff
#define CSC_B0_SHIFT 16
#define CSC_CSC01 0x04
#define CSC_C0_MASK 0x1fff
#define CSC_C0_SHIFT 0
#define CSC_A1_MASK 0x1fff
#define CSC_A1_SHIFT 16
#define CSC_CSC02 0x08
#define CSC_B1_MASK 0x1fff
#define CSC_B1_SHIFT 0
#define CSC_C1_MASK 0x1fff
#define CSC_C1_SHIFT 16
#define CSC_CSC03 0x0c
#define CSC_A2_MASK 0x1fff
#define CSC_A2_SHIFT 0
#define CSC_B2_MASK 0x1fff
#define CSC_B2_SHIFT 16
#define CSC_CSC04 0x10
#define CSC_C2_MASK 0x1fff
#define CSC_C2_SHIFT 0
#define CSC_D0_MASK 0x0fff
#define CSC_D0_SHIFT 16
#define CSC_CSC05 0x14
#define CSC_D1_MASK 0x0fff
#define CSC_D1_SHIFT 0
#define CSC_D2_MASK 0x0fff
#define CSC_D2_SHIFT 16
#define CSC_BYPASS (1 << 28)
struct csc_data {
void __iomem *base;
struct resource *res;
struct platform_device *pdev;
};
void csc_dump_regs(struct csc_data *csc);
void csc_set_coeff_bypass(struct csc_data *csc, u32 *csc_reg5);
void csc_set_coeff(struct csc_data *csc, u32 *csc_reg0,
struct v4l2_format *src_fmt, struct v4l2_format *dst_fmt);
struct csc_data *csc_create(struct platform_device *pdev, const char *res_name);
#endif