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/* SPDX-License-Identifier: GPL-2.0 */
/*
* (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
* Author: James.Qian.Wang <james.qian.wang@arm.com>
*
*/
#ifndef _KOMEDA_FORMAT_CAPS_H_
#define _KOMEDA_FORMAT_CAPS_H_
#include <linux/types.h>
#include <uapi/drm/drm_fourcc.h>
#include <drm/drm_fourcc.h>
#define AFBC(x) DRM_FORMAT_MOD_ARM_AFBC(x)
/* afbc layerout */
#define AFBC_16x16(x) AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 | (x))
#define AFBC_32x8(x) AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 | (x))
/* afbc features */
#define _YTR AFBC_FORMAT_MOD_YTR
#define _SPLIT AFBC_FORMAT_MOD_SPLIT
#define _SPARSE AFBC_FORMAT_MOD_SPARSE
#define _CBR AFBC_FORMAT_MOD_CBR
#define _TILED AFBC_FORMAT_MOD_TILED
#define _SC AFBC_FORMAT_MOD_SC
/* layer_type */
#define KOMEDA_FMT_RICH_LAYER BIT(0)
#define KOMEDA_FMT_SIMPLE_LAYER BIT(1)
#define KOMEDA_FMT_WB_LAYER BIT(2)
#define AFBC_TH_LAYOUT_ALIGNMENT 8
#define AFBC_HEADER_SIZE 16
#define AFBC_SUPERBLK_ALIGNMENT 128
#define AFBC_SUPERBLK_PIXELS 256
#define AFBC_BODY_START_ALIGNMENT 1024
#define AFBC_TH_BODY_START_ALIGNMENT 4096
/**
* struct komeda_format_caps
*
* komeda_format_caps is for describing ARM display specific features and
* limitations for a specific format, and format_caps will be linked into
* &komeda_framebuffer like a extension of &drm_format_info.
*
* NOTE: one fourcc may has two different format_caps items for fourcc and
* fourcc+modifier
*
* @hw_id: hw format id, hw specific value.
* @fourcc: drm fourcc format.
* @supported_layer_types: indicate which layer supports this format
* @supported_rots: allowed rotations for this format
* @supported_afbc_layouts: supported afbc layerout
* @supported_afbc_features: supported afbc features
*/
struct komeda_format_caps {
u32 hw_id;
u32 fourcc;
u32 supported_layer_types;
u32 supported_rots;
u32 supported_afbc_layouts;
u64 supported_afbc_features;
};
/**
* struct komeda_format_caps_table - format_caps mananger
*
* @n_formats: the size of format_caps list.
* @format_caps: format_caps list.
* @format_mod_supported: Optional. Some HW may have special requirements or
* limitations which can not be described by format_caps, this func supply HW
* the ability to do the further HW specific check.
*/
struct komeda_format_caps_table {
u32 n_formats;
const struct komeda_format_caps *format_caps;
bool (*format_mod_supported)(const struct komeda_format_caps *caps,
u32 layer_type, u64 modifier, u32 rot);
};
extern u64 komeda_supported_modifiers[];
static inline const char *komeda_get_format_name(u32 fourcc, u64 modifier)
{
struct drm_format_name_buf buf;
static char name[64];
snprintf(name, sizeof(name), "%s with modifier: 0x%llx.",
drm_get_format_name(fourcc, &buf), modifier);
return name;
}
const struct komeda_format_caps *
komeda_get_format_caps(struct komeda_format_caps_table *table,
u32 fourcc, u64 modifier);
u32 *komeda_get_layer_fourcc_list(struct komeda_format_caps_table *table,
u32 layer_type, u32 *n_fmts);
void komeda_put_fourcc_list(u32 *fourcc_list);
bool komeda_format_mod_supported(struct komeda_format_caps_table *table,
u32 layer_type, u32 fourcc, u64 modifier,
u32 rot);
#endif
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