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/*
* Copyright (C) 2012 Avionic Design GmbH
* Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef HOST1X_DRM_H
#define HOST1X_DRM_H 1
#include <uapi/drm/tegra_drm.h>
#include <linux/host1x.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_fixed.h>
struct reset_control;
struct tegra_fb {
struct drm_framebuffer base;
struct tegra_bo **planes;
unsigned int num_planes;
};
struct tegra_fbdev {
struct drm_fb_helper base;
struct tegra_fb *fb;
};
struct tegra_drm {
struct drm_device *drm;
struct mutex clients_lock;
struct list_head clients;
struct tegra_fbdev *fbdev;
};
struct tegra_drm_client;
struct tegra_drm_context {
struct tegra_drm_client *client;
struct host1x_channel *channel;
struct list_head list;
};
struct tegra_drm_client_ops {
int (*open_channel)(struct tegra_drm_client *client,
struct tegra_drm_context *context);
void (*close_channel)(struct tegra_drm_context *context);
int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
int (*submit)(struct tegra_drm_context *context,
struct drm_tegra_submit *args, struct drm_device *drm,
struct drm_file *file);
};
int tegra_drm_submit(struct tegra_drm_context *context,
struct drm_tegra_submit *args, struct drm_device *drm,
struct drm_file *file);
struct tegra_drm_client {
struct host1x_client base;
struct list_head list;
const struct tegra_drm_client_ops *ops;
};
static inline struct tegra_drm_client *
host1x_to_drm_client(struct host1x_client *client)
{
return container_of(client, struct tegra_drm_client, base);
}
extern int tegra_drm_register_client(struct tegra_drm *tegra,
struct tegra_drm_client *client);
extern int tegra_drm_unregister_client(struct tegra_drm *tegra,
struct tegra_drm_client *client);
extern int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
extern int tegra_drm_exit(struct tegra_drm *tegra);
struct tegra_output;
struct tegra_dc {
struct host1x_client client;
struct device *dev;
spinlock_t lock;
struct drm_crtc base;
int pipe;
struct clk *clk;
struct reset_control *rst;
void __iomem *regs;
int irq;
struct tegra_output *rgb;
struct list_head list;
struct drm_info_list *debugfs_files;
struct drm_minor *minor;
struct dentry *debugfs;
/* page-flip handling */
struct drm_pending_vblank_event *event;
};
static inline struct tegra_dc *
host1x_client_to_dc(struct host1x_client *client)
{
return container_of(client, struct tegra_dc, client);
}
static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
{
return container_of(crtc, struct tegra_dc, base);
}
static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value,
unsigned long reg)
{
writel(value, dc->regs + (reg << 2));
}
static inline unsigned long tegra_dc_readl(struct tegra_dc *dc,
unsigned long reg)
{
return readl(dc->regs + (reg << 2));
}
struct tegra_dc_window {
struct {
unsigned int x;
unsigned int y;
unsigned int w;
unsigned int h;
} src;
struct {
unsigned int x;
unsigned int y;
unsigned int w;
unsigned int h;
} dst;
unsigned int bits_per_pixel;
unsigned int format;
unsigned int stride[2];
unsigned long base[3];
bool bottom_up;
bool tiled;
};
/* from dc.c */
extern unsigned int tegra_dc_format(uint32_t format);
extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
const struct tegra_dc_window *window);
extern void tegra_dc_enable_vblank(struct tegra_dc *dc);
extern void tegra_dc_disable_vblank(struct tegra_dc *dc);
extern void tegra_dc_cancel_page_flip(struct drm_crtc *crtc,
struct drm_file *file);
struct tegra_output_ops {
int (*enable)(struct tegra_output *output);
int (*disable)(struct tegra_output *output);
int (*setup_clock)(struct tegra_output *output, struct clk *clk,
unsigned long pclk);
int (*check_mode)(struct tegra_output *output,
struct drm_display_mode *mode,
enum drm_mode_status *status);
};
enum tegra_output_type {
TEGRA_OUTPUT_RGB,
TEGRA_OUTPUT_HDMI,
};
struct tegra_output {
struct device_node *of_node;
struct device *dev;
const struct tegra_output_ops *ops;
enum tegra_output_type type;
struct i2c_adapter *ddc;
const struct edid *edid;
unsigned int hpd_irq;
int hpd_gpio;
struct drm_encoder encoder;
struct drm_connector connector;
};
static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
{
return container_of(e, struct tegra_output, encoder);
}
static inline struct tegra_output *connector_to_output(struct drm_connector *c)
{
return container_of(c, struct tegra_output, connector);
}
static inline int tegra_output_enable(struct tegra_output *output)
{
if (output && output->ops && output->ops->enable)
return output->ops->enable(output);
return output ? -ENOSYS : -EINVAL;
}
static inline int tegra_output_disable(struct tegra_output *output)
{
if (output && output->ops && output->ops->disable)
return output->ops->disable(output);
return output ? -ENOSYS : -EINVAL;
}
static inline int tegra_output_setup_clock(struct tegra_output *output,
struct clk *clk, unsigned long pclk)
{
if (output && output->ops && output->ops->setup_clock)
return output->ops->setup_clock(output, clk, pclk);
return output ? -ENOSYS : -EINVAL;
}
static inline int tegra_output_check_mode(struct tegra_output *output,
struct drm_display_mode *mode,
enum drm_mode_status *status)
{
if (output && output->ops && output->ops->check_mode)
return output->ops->check_mode(output, mode, status);
return output ? -ENOSYS : -EINVAL;
}
/* from bus.c */
int drm_host1x_init(struct drm_driver *driver, struct host1x_device *device);
void drm_host1x_exit(struct drm_driver *driver, struct host1x_device *device);
/* from rgb.c */
extern int tegra_dc_rgb_probe(struct tegra_dc *dc);
extern int tegra_dc_rgb_remove(struct tegra_dc *dc);
extern int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
extern int tegra_dc_rgb_exit(struct tegra_dc *dc);
/* from output.c */
extern int tegra_output_probe(struct tegra_output *output);
extern int tegra_output_remove(struct tegra_output *output);
extern int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
extern int tegra_output_exit(struct tegra_output *output);
/* from fb.c */
struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
unsigned int index);
bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
bool tegra_fb_is_tiled(struct drm_framebuffer *framebuffer);
extern int tegra_drm_fb_init(struct drm_device *drm);
extern void tegra_drm_fb_exit(struct drm_device *drm);
extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
extern struct platform_driver tegra_dc_driver;
extern struct platform_driver tegra_hdmi_driver;
extern struct platform_driver tegra_gr2d_driver;
extern struct platform_driver tegra_gr3d_driver;
#endif /* HOST1X_DRM_H */
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