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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#ifndef __MDP_KMS_H__
#define __MDP_KMS_H__
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include "mdp_format.h"
#include "msm_drv.h"
#include "msm_kms.h"
#include "mdp_common.xml.h"
struct mdp_kms;
struct mdp_kms_funcs {
struct msm_kms_funcs base;
void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask,
uint32_t old_irqmask);
};
struct mdp_kms {
struct msm_kms base;
const struct mdp_kms_funcs *funcs;
/* irq handling: */
bool in_irq;
struct list_head irq_list; /* list of mdp4_irq */
uint32_t vblank_mask; /* irq bits set for userspace vblank */
uint32_t cur_irq_mask; /* current irq mask */
};
#define to_mdp_kms(x) container_of(x, struct mdp_kms, base)
static inline int mdp_kms_init(struct mdp_kms *mdp_kms,
const struct mdp_kms_funcs *funcs)
{
mdp_kms->funcs = funcs;
INIT_LIST_HEAD(&mdp_kms->irq_list);
return msm_kms_init(&mdp_kms->base, &funcs->base);
}
static inline void mdp_kms_destroy(struct mdp_kms *mdp_kms)
{
msm_kms_destroy(&mdp_kms->base);
}
/*
* irq helpers:
*/
/* For transiently registering for different MDP irqs that various parts
* of the KMS code need during setup/configuration. These are not
* necessarily the same as what drm_vblank_get/put() are requesting, and
* the hysteresis in drm_vblank_put() is not necessarily desirable for
* internal housekeeping related irq usage.
*/
struct mdp_irq {
struct list_head node;
uint32_t irqmask;
bool registered;
void (*irq)(struct mdp_irq *irq, uint32_t irqstatus);
};
void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status);
void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable);
void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask);
void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
void mdp_irq_update(struct mdp_kms *mdp_kms);
/*
* pixel format helpers:
*/
/* MDP capabilities */
#define MDP_CAP_SMP BIT(0) /* Shared Memory Pool */
#define MDP_CAP_DSC BIT(1) /* VESA Display Stream Compression */
#define MDP_CAP_CDM BIT(2) /* Chroma Down Module (HDMI 2.0 YUV) */
#define MDP_CAP_SRC_SPLIT BIT(3) /* Source Split of SSPPs */
/* MDP pipe capabilities */
#define MDP_PIPE_CAP_HFLIP BIT(0)
#define MDP_PIPE_CAP_VFLIP BIT(1)
#define MDP_PIPE_CAP_SCALE BIT(2)
#define MDP_PIPE_CAP_CSC BIT(3)
#define MDP_PIPE_CAP_DECIMATION BIT(4)
#define MDP_PIPE_CAP_SW_PIX_EXT BIT(5)
#define MDP_PIPE_CAP_CURSOR BIT(6)
/* MDP layer mixer caps */
#define MDP_LM_CAP_DISPLAY BIT(0)
#define MDP_LM_CAP_WB BIT(1)
#define MDP_LM_CAP_PAIR BIT(2)
static inline bool pipe_supports_yuv(uint32_t pipe_caps)
{
return (pipe_caps & MDP_PIPE_CAP_SCALE) &&
(pipe_caps & MDP_PIPE_CAP_CSC);
}
enum csc_type {
CSC_RGB2RGB = 0,
CSC_YUV2RGB,
CSC_RGB2YUV,
CSC_YUV2YUV,
CSC_MAX
};
struct csc_cfg {
enum csc_type type;
uint32_t matrix[9];
uint32_t pre_bias[3];
uint32_t post_bias[3];
uint32_t pre_clamp[6];
uint32_t post_clamp[6];
};
struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type);
#endif /* __MDP_KMS_H__ */
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