[linux-2.6-block.git] / drivers / gpu / host1x / drm / drm.h

/*
 * 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 <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>
#include <uapi/drm/tegra_drm.h>

#include "host1x.h"

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 host1x_drm {
	struct drm_device *drm;
	struct device *dev;

	struct mutex drm_clients_lock;
	struct list_head drm_clients;
	struct list_head drm_active;

	struct mutex clients_lock;
	struct list_head clients;

	struct tegra_fbdev *fbdev;
};

struct host1x_client;

struct host1x_drm_context {
	struct host1x_client *client;
	struct host1x_channel *channel;
	struct list_head list;
};

struct host1x_client_ops {
	int (*drm_init)(struct host1x_client *client, struct drm_device *drm);
	int (*drm_exit)(struct host1x_client *client);
	int (*open_channel)(struct host1x_client *client,
			    struct host1x_drm_context *context);
	void (*close_channel)(struct host1x_drm_context *context);
	int (*submit)(struct host1x_drm_context *context,
		      struct drm_tegra_submit *args, struct drm_device *drm,
		      struct drm_file *file);
};

struct host1x_drm_file {
	struct list_head contexts;
};

struct host1x_client {
	struct host1x_drm *host1x;
	struct device *dev;

	const struct host1x_client_ops *ops;

	enum host1x_class class;
	struct host1x_channel *channel;

	struct host1x_syncpt **syncpts;
	unsigned int num_syncpts;

	struct list_head list;
};

extern int host1x_drm_init(struct host1x_drm *host1x, struct drm_device *drm);
extern int host1x_drm_exit(struct host1x_drm *host1x);

extern int host1x_register_client(struct host1x_drm *host1x,
				  struct host1x_client *client);
extern int host1x_unregister_client(struct host1x_drm *host1x,
				    struct host1x_client *client);

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;
	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];
};

/* 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 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 fb.c */
struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
				    unsigned int index);
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 drm_driver tegra_drm_driver;

#endif /* HOST1X_DRM_H */
Commit	Line	Data
d8f4a9ed TR	1	/*
d8f4a9ed TR	2	* Copyright (C) 2012 Avionic Design GmbH
d43f81cb	3	* Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
d8f4a9ed TR	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*/
	9
4231c6b0 TB	10	#ifndef HOST1X_DRM_H
4231c6b0 TB	11	#define HOST1X_DRM_H 1
d8f4a9ed TR	12
	13	#include <drm/drmP.h>
	14	#include <drm/drm_crtc_helper.h>
	15	#include <drm/drm_edid.h>
	16	#include <drm/drm_fb_helper.h>
d8f4a9ed	17	#include <drm/drm_fixed.h>
d43f81cb TB	18	#include <uapi/drm/tegra_drm.h>
	19
	20	#include "host1x.h"
d8f4a9ed	21
de2ba664 AM	22	struct tegra_fb {
	23	struct drm_framebuffer base;
	24	struct tegra_bo **planes;
	25	unsigned int num_planes;
	26	};
	27
	28	struct tegra_fbdev {
	29	struct drm_fb_helper base;
	30	struct tegra_fb *fb;
	31	};
	32
c89c0ea6	33	struct host1x_drm {
d8f4a9ed TR	34	struct drm_device *drm;
d8f4a9ed TR	35	struct device *dev;
d8f4a9ed TR	36
	37	struct mutex drm_clients_lock;
	38	struct list_head drm_clients;
	39	struct list_head drm_active;
	40
	41	struct mutex clients_lock;
	42	struct list_head clients;
	43
de2ba664	44	struct tegra_fbdev *fbdev;
d8f4a9ed TR	45	};
	46
	47	struct host1x_client;
	48
d43f81cb TB	49	struct host1x_drm_context {
	50	struct host1x_client *client;
	51	struct host1x_channel *channel;
	52	struct list_head list;
	53	};
	54
d8f4a9ed TR	55	struct host1x_client_ops {
	56	int (drm_init)(struct host1x_client client, struct drm_device *drm);
	57	int (drm_exit)(struct host1x_client client);
d43f81cb TB	58	int (open_channel)(struct host1x_client client,
	59	struct host1x_drm_context *context);
	60	void (close_channel)(struct host1x_drm_context context);
	61	int (submit)(struct host1x_drm_context context,
	62	struct drm_tegra_submit args, struct drm_device drm,
	63	struct drm_file *file);
	64	};
	65
	66	struct host1x_drm_file {
	67	struct list_head contexts;
d8f4a9ed TR	68	};
	69
	70	struct host1x_client {
c89c0ea6	71	struct host1x_drm *host1x;
d8f4a9ed TR	72	struct device *dev;
	73
	74	const struct host1x_client_ops *ops;
	75
d43f81cb TB	76	enum host1x_class class;
	77	struct host1x_channel *channel;
	78
	79	struct host1x_syncpt **syncpts;
	80	unsigned int num_syncpts;
	81
d8f4a9ed TR	82	struct list_head list;
	83	};
	84
c89c0ea6 AM	85	extern int host1x_drm_init(struct host1x_drm host1x, struct drm_device drm);
c89c0ea6 AM	86	extern int host1x_drm_exit(struct host1x_drm *host1x);
d8f4a9ed	87
c89c0ea6	88	extern int host1x_register_client(struct host1x_drm *host1x,
d8f4a9ed	89	struct host1x_client *client);
c89c0ea6	90	extern int host1x_unregister_client(struct host1x_drm *host1x,
d8f4a9ed TR	91	struct host1x_client *client);
	92
	93	struct tegra_output;
	94
	95	struct tegra_dc {
	96	struct host1x_client client;
d8f4a9ed	97	struct device *dev;
d18d3033	98	spinlock_t lock;
d8f4a9ed TR	99
	100	struct drm_crtc base;
	101	int pipe;
	102
	103	struct clk *clk;
d8f4a9ed TR	104	void __iomem *regs;
	105	int irq;
	106
	107	struct tegra_output *rgb;
	108
	109	struct list_head list;
	110
	111	struct drm_info_list *debugfs_files;
	112	struct drm_minor *minor;
	113	struct dentry *debugfs;
3c03c46a TR	114
	115	/* page-flip handling */
	116	struct drm_pending_vblank_event *event;
d8f4a9ed TR	117	};
	118
	119	static inline struct tegra_dc host1x_client_to_dc(struct host1x_client client)
	120	{
	121	return container_of(client, struct tegra_dc, client);
	122	}
	123
	124	static inline struct tegra_dc to_tegra_dc(struct drm_crtc crtc)
	125	{
	126	return container_of(crtc, struct tegra_dc, base);
	127	}
	128
	129	static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value,
	130	unsigned long reg)
	131	{
	132	writel(value, dc->regs + (reg << 2));
	133	}
	134
	135	static inline unsigned long tegra_dc_readl(struct tegra_dc *dc,
	136	unsigned long reg)
	137	{
	138	return readl(dc->regs + (reg << 2));
	139	}
	140
f34bc787 TR	141	struct tegra_dc_window {
	142	struct {
	143	unsigned int x;
	144	unsigned int y;
	145	unsigned int w;
	146	unsigned int h;
	147	} src;
	148	struct {
	149	unsigned int x;
	150	unsigned int y;
	151	unsigned int w;
	152	unsigned int h;
	153	} dst;
	154	unsigned int bits_per_pixel;
	155	unsigned int format;
	156	unsigned int stride[2];
	157	unsigned long base[3];
	158	};
	159
	160	/* from dc.c */
	161	extern unsigned int tegra_dc_format(uint32_t format);
	162	extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
	163	const struct tegra_dc_window *window);
6e5ff998 TR	164	extern void tegra_dc_enable_vblank(struct tegra_dc *dc);
6e5ff998 TR	165	extern void tegra_dc_disable_vblank(struct tegra_dc *dc);
3c03c46a TR	166	extern void tegra_dc_cancel_page_flip(struct drm_crtc *crtc,
3c03c46a TR	167	struct drm_file *file);
f34bc787	168
d8f4a9ed TR	169	struct tegra_output_ops {
	170	int (enable)(struct tegra_output output);
	171	int (disable)(struct tegra_output output);
	172	int (setup_clock)(struct tegra_output output, struct clk *clk,
	173	unsigned long pclk);
	174	int (check_mode)(struct tegra_output output,
	175	struct drm_display_mode *mode,
	176	enum drm_mode_status *status);
	177	};
	178
	179	enum tegra_output_type {
	180	TEGRA_OUTPUT_RGB,
edec4af4	181	TEGRA_OUTPUT_HDMI,
d8f4a9ed TR	182	};
	183
	184	struct tegra_output {
	185	struct device_node *of_node;
	186	struct device *dev;
	187
	188	const struct tegra_output_ops *ops;
	189	enum tegra_output_type type;
	190
	191	struct i2c_adapter *ddc;
	192	const struct edid *edid;
	193	unsigned int hpd_irq;
	194	int hpd_gpio;
	195
	196	struct drm_encoder encoder;
	197	struct drm_connector connector;
	198	};
	199
	200	static inline struct tegra_output encoder_to_output(struct drm_encoder e)
	201	{
	202	return container_of(e, struct tegra_output, encoder);
	203	}
	204
	205	static inline struct tegra_output connector_to_output(struct drm_connector c)
	206	{
	207	return container_of(c, struct tegra_output, connector);
	208	}
	209
	210	static inline int tegra_output_enable(struct tegra_output *output)
	211	{
	212	if (output && output->ops && output->ops->enable)
	213	return output->ops->enable(output);
	214
	215	return output ? -ENOSYS : -EINVAL;
	216	}
	217
	218	static inline int tegra_output_disable(struct tegra_output *output)
	219	{
	220	if (output && output->ops && output->ops->disable)
	221	return output->ops->disable(output);
	222
	223	return output ? -ENOSYS : -EINVAL;
	224	}
	225
	226	static inline int tegra_output_setup_clock(struct tegra_output *output,
	227	struct clk *clk, unsigned long pclk)
	228	{
	229	if (output && output->ops && output->ops->setup_clock)
	230	return output->ops->setup_clock(output, clk, pclk);
	231
	232	return output ? -ENOSYS : -EINVAL;
	233	}
	234
	235	static inline int tegra_output_check_mode(struct tegra_output *output,
	236	struct drm_display_mode *mode,
	237	enum drm_mode_status *status)
	238	{
	239	if (output && output->ops && output->ops->check_mode)
	240	return output->ops->check_mode(output, mode, status);
	241
	242	return output ? -ENOSYS : -EINVAL;
	243	}
	244
	245	/* from rgb.c */
246	extern int tegra_dc_rgb_probe(struct tegra_dc *dc);
247	extern int tegra_dc_rgb_init(struct drm_device drm, struct tegra_dc dc);
248	extern int tegra_dc_rgb_exit(struct tegra_dc *dc);
249
250	/* from output.c */
251	extern int tegra_output_parse_dt(struct tegra_output *output);
252	extern int tegra_output_init(struct drm_device drm, struct tegra_output output);
253	extern int tegra_output_exit(struct tegra_output *output);
254
d8f4a9ed	255	/* from fb.c */
de2ba664 AM	256	struct tegra_bo tegra_fb_get_plane(struct drm_framebuffer framebuffer,
de2ba664 AM	257	unsigned int index);
d8f4a9ed TR	258	extern int tegra_drm_fb_init(struct drm_device *drm);
d8f4a9ed TR	259	extern void tegra_drm_fb_exit(struct drm_device *drm);
de2ba664	260	extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
d8f4a9ed	261
d8f4a9ed TR	262	extern struct drm_driver tegra_drm_driver;
d8f4a9ed TR	263
4231c6b0	264	#endif /* HOST1X_DRM_H */