/* SPDX-License-Identifier: GPL-2.0-or-later */
/* exynos_drm_drv.h
*
* Copyright ( c ) 2011 Samsung Electronics Co . , Ltd .
* Authors :
* Inki Dae < inki . dae @ samsung . com >
* Joonyoung Shim < jy0922 . shim @ samsung . com >
* Seung - Woo Kim < sw0312 . kim @ samsung . com >
*/
#ifndef _EXYNOS_DRM_DRV_H_
#define _EXYNOS_DRM_DRV_H_
#include <linux/module.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_plane.h>
#define MAX_CRTC 3
#define MAX_PLANE 5
#define MAX_FB_BUFFER 4
#define DEFAULT_WIN 0
struct drm_crtc_state;
struct drm_display_mode;
#define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
#define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
/* this enumerates display type. */
enum exynos_drm_output_type {
EXYNOS_DISPLAY_TYPE_NONE,
/* RGB or CPU Interface. */
EXYNOS_DISPLAY_TYPE_LCD,
/* HDMI Interface. */
EXYNOS_DISPLAY_TYPE_HDMI,
/* Virtual Display Interface. */
EXYNOS_DISPLAY_TYPE_VIDI,
};
struct exynos_drm_rect {
unsigned int x, y;
unsigned int w, h;
};
/*
* Exynos drm plane state structure .
*
* @ base : plane_state object ( contains drm_framebuffer pointer )
* @ src : rectangle of the source image data to be displayed ( clipped to
* visible part ) .
* @ crtc : rectangle of the target image position on hardware screen
* ( clipped to visible part ) .
* @ h_ratio : horizontal scaling ratio , 16 . 16 fixed point
* @ v_ratio : vertical scaling ratio , 16 . 16 fixed point
*
* this structure consists plane state data that will be applied to hardware
* specific overlay info .
*/
struct exynos_drm_plane_state {
struct drm_plane_state base;
struct exynos_drm_rect crtc;
struct exynos_drm_rect src;
unsigned int h_ratio;
unsigned int v_ratio;
};
static inline struct exynos_drm_plane_state *
to_exynos_plane_state(struct drm_plane_state *state)
{
return container_of(state, struct exynos_drm_plane_state, base);
}
/*
* Exynos drm common overlay structure .
*
* @ base : plane object
* @ index : hardware index of the overlay layer
*
* this structure is common to exynos SoC and its contents would be copied
* to hardware specific overlay info .
*/
struct exynos_drm_plane {
struct drm_plane base;
const struct exynos_drm_plane_config *config;
unsigned int index;
};
#define EXYNOS_DRM_PLANE_CAP_DOUBLE (1 << 0 )
#define EXYNOS_DRM_PLANE_CAP_SCALE (1 << 1 )
#define EXYNOS_DRM_PLANE_CAP_ZPOS (1 << 2 )
#define EXYNOS_DRM_PLANE_CAP_TILE (1 << 3 )
#define EXYNOS_DRM_PLANE_CAP_PIX_BLEND (1 << 4 )
#define EXYNOS_DRM_PLANE_CAP_WIN_BLEND (1 << 5 )
/*
* Exynos DRM plane configuration structure .
*
* @ zpos : initial z - position of the plane .
* @ type : type of the plane ( primary , cursor or overlay ) .
* @ pixel_formats : supported pixel formats .
* @ num_pixel_formats : number of elements in ' pixel_formats ' .
* @ capabilities : supported features ( see EXYNOS_DRM_PLANE_CAP_ * )
*/
struct exynos_drm_plane_config {
unsigned int zpos;
enum drm_plane_type type;
const uint32_t *pixel_formats;
unsigned int num_pixel_formats;
unsigned int capabilities;
};
/*
* Exynos drm crtc ops
*
* @ atomic_enable : enable the device
* @ atomic_disable : disable the device
* @ enable_vblank : specific driver callback for enabling vblank interrupt .
* @ disable_vblank : specific driver callback for disabling vblank interrupt .
* @ mode_valid : specific driver callback for mode validation
* @ atomic_check : validate state
* @ atomic_begin : prepare device to receive an update
* @ atomic_flush : mark the end of device update
* @ update_plane : apply hardware specific overlay data to registers .
* @ disable_plane : disable hardware specific overlay .
* @ te_handler : trigger to transfer video image at the tearing effect
* synchronization signal if there is a page flip request .
*/
struct exynos_drm_crtc;
struct exynos_drm_crtc_ops {
void (*atomic_enable)(struct exynos_drm_crtc *crtc);
void (*atomic_disable)(struct exynos_drm_crtc *crtc);
int (*enable_vblank)(struct exynos_drm_crtc *crtc);
void (*disable_vblank)(struct exynos_drm_crtc *crtc);
enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
const struct drm_display_mode *mode);
bool (*mode_fixup)(struct exynos_drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
int (*atomic_check)(struct exynos_drm_crtc *crtc,
struct drm_crtc_state *state);
void (*atomic_begin)(struct exynos_drm_crtc *crtc);
void (*update_plane)(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane);
void (*disable_plane)(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane);
void (*atomic_flush)(struct exynos_drm_crtc *crtc);
void (*te_handler)(struct exynos_drm_crtc *crtc);
};
struct exynos_drm_clk {
void (*enable)(struct exynos_drm_clk *clk, bool enable);
};
/*
* Exynos specific crtc structure .
*
* @ base : crtc object .
* @ type : one of EXYNOS_DISPLAY_TYPE_LCD and HDMI .
* @ ops : pointer to callbacks for exynos drm specific functionality
* @ ctx : A pointer to the crtc ' s implementation specific context
* @ pipe_clk : A pointer to the crtc ' s pipeline clock .
*/
struct exynos_drm_crtc {
struct drm_crtc base;
enum exynos_drm_output_type type;
const struct exynos_drm_crtc_ops *ops;
void *ctx;
struct exynos_drm_clk *pipe_clk;
bool i80_mode : 1 ;
};
static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
bool enable)
{
if (crtc->pipe_clk)
crtc->pipe_clk->enable(crtc->pipe_clk, enable);
}
struct drm_exynos_file_private {
/* for g2d api */
struct list_head inuse_cmdlist;
struct list_head event_list;
struct list_head userptr_list;
};
/*
* Exynos drm private structure .
*
* @ pending : the crtcs that have pending updates to finish
* @ lock : protect access to @ pending
* @ wait : wait an atomic commit to finish
*/
struct exynos_drm_private {
struct device *g2d_dev;
struct device *dma_dev;
void *mapping;
/* for atomic commit */
u32 pending;
spinlock_t lock;
wait_queue_head_t wait;
};
static inline struct device *to_dma_dev(struct drm_device *dev)
{
struct exynos_drm_private *priv = dev->dev_private;
return priv->dma_dev;
}
static inline bool is_drm_iommu_supported(struct drm_device *drm_dev)
{
struct exynos_drm_private *priv = drm_dev->dev_private;
return priv->mapping ? true : false ;
}
int exynos_drm_register_dma(struct drm_device *drm, struct device *dev,
void **dma_priv);
void exynos_drm_unregister_dma(struct drm_device *drm, struct device *dev,
void **dma_priv);
void exynos_drm_cleanup_dma(struct drm_device *drm);
#ifdef CONFIG_DRM_EXYNOS_DPI
struct drm_encoder *exynos_dpi_probe(struct device *dev);
int exynos_dpi_remove(struct drm_encoder *encoder);
int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder);
#else
static inline struct drm_encoder *
exynos_dpi_probe(struct device *dev) { return NULL; }
static inline int exynos_dpi_remove(struct drm_encoder *encoder)
{
return 0 ;
}
static inline int exynos_dpi_bind(struct drm_device *dev,
struct drm_encoder *encoder)
{
return 0 ;
}
#endif
#ifdef CONFIG_DRM_EXYNOS_FIMC
int exynos_drm_check_fimc_device(struct device *dev);
#else
static inline int exynos_drm_check_fimc_device(struct device *dev)
{
return 0 ;
}
#endif
extern struct platform_driver fimd_driver;
extern struct platform_driver exynos5433_decon_driver;
extern struct platform_driver decon_driver;
extern struct platform_driver dp_driver;
extern struct platform_driver dsi_driver;
extern struct platform_driver mixer_driver;
extern struct platform_driver hdmi_driver;
extern struct platform_driver vidi_driver;
extern struct platform_driver g2d_driver;
extern struct platform_driver fimc_driver;
extern struct platform_driver rotator_driver;
extern struct platform_driver scaler_driver;
extern struct platform_driver gsc_driver;
extern struct platform_driver mic_driver;
#endif
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