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/*
* Copyright (C) 2012 Avionic Design GmbH
* Copyright (C) 2012 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 TEGRA_DRM_H
#define TEGRA_DRM_H 1
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fixed.h>
struct tegra_framebuffer {
struct drm_framebuffer base;
struct drm_gem_cma_object *obj;
};
static inline struct tegra_framebuffer *to_tegra_fb(struct drm_framebuffer *fb)
{
return container_of(fb, struct tegra_framebuffer, base);
}
struct host1x {
struct drm_device *drm;
struct device *dev;
void __iomem *regs;
struct clk *clk;
int syncpt;
int irq;
struct mutex drm_clients_lock;
struct list_head drm_clients;
struct list_head drm_active;
struct mutex clients_lock;
struct list_head clients;
struct drm_fbdev_cma *fbdev;
struct tegra_framebuffer fb;
};
struct host1x_client;
struct host1x_client_ops {
int (*drm_init)(struct host1x_client *client, struct drm_device *drm);
int (*drm_exit)(struct host1x_client *client);
};
struct host1x_client {
struct host1x *host1x;
struct device *dev;
const struct host1x_client_ops *ops;
struct list_head list;
};
extern int host1x_drm_init(struct host1x *host1x, struct drm_device *drm);
extern int host1x_drm_exit(struct host1x *host1x);
extern int host1x_register_client(struct host1x *host1x,
struct host1x_client *client);
extern int host1x_unregister_client(struct host1x *host1x,
struct host1x_client *client);
struct tegra_output;
struct tegra_dc {
struct host1x_client client;
struct host1x *host1x;
struct device *dev;
struct drm_crtc base;
int pipe;
struct clk *clk;
struct mutex regs_mutex;
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;
};
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_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 rgb.c */
extern int tegra_dc_rgb_probe(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_parse_dt(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 gem.c */
extern struct tegra_gem_object *tegra_gem_alloc(struct drm_device *drm,
size_t size);
extern int tegra_gem_handle_create(struct drm_device *drm,
struct drm_file *file, size_t size,
unsigned long flags, uint32_t *handle);
extern int tegra_gem_dumb_create(struct drm_file *file, struct drm_device *drm,
struct drm_mode_create_dumb *args);
extern int tegra_gem_dumb_map_offset(struct drm_file *file,
struct drm_device *drm, uint32_t handle,
uint64_t *offset);
extern int tegra_gem_dumb_destroy(struct drm_file *file,
struct drm_device *drm, uint32_t handle);
extern int tegra_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
extern int tegra_gem_init_object(struct drm_gem_object *obj);
extern void tegra_gem_free_object(struct drm_gem_object *obj);
extern struct vm_operations_struct tegra_gem_vm_ops;
/* from fb.c */
extern int tegra_drm_fb_init(struct drm_device *drm);
extern void tegra_drm_fb_exit(struct drm_device *drm);
extern struct platform_driver tegra_host1x_driver;
extern struct platform_driver tegra_hdmi_driver;
extern struct platform_driver tegra_dc_driver;
extern struct drm_driver tegra_drm_driver;
#endif /* TEGRA_DRM_H */
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