[mirror_ubuntu-zesty-kernel.git] / drivers / gpu / drm / tegra / 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 <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 crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
}

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 */
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	12
e1e90644 TR	13	#include <uapi/drm/tegra_drm.h>
	14	#include <linux/host1x.h>
	15
d8f4a9ed TR	16	#include <drm/drmP.h>
	17	#include <drm/drm_crtc_helper.h>
	18	#include <drm/drm_edid.h>
	19	#include <drm/drm_fb_helper.h>
d8f4a9ed TR	20	#include <drm/drm_fixed.h>
d8f4a9ed TR	21
ca48080a SW	22	struct reset_control;
ca48080a SW	23
de2ba664 AM	24	struct tegra_fb {
	25	struct drm_framebuffer base;
	26	struct tegra_bo **planes;
	27	unsigned int num_planes;
	28	};
	29
	30	struct tegra_fbdev {
	31	struct drm_fb_helper base;
	32	struct tegra_fb *fb;
	33	};
	34
386a2a71	35	struct tegra_drm {
d8f4a9ed	36	struct drm_device *drm;
d8f4a9ed TR	37
	38	struct mutex clients_lock;
	39	struct list_head clients;
	40
de2ba664	41	struct tegra_fbdev *fbdev;
d8f4a9ed TR	42	};
d8f4a9ed TR	43
53fa7f72	44	struct tegra_drm_client;
d8f4a9ed	45
c88c3630	46	struct tegra_drm_context {
53fa7f72	47	struct tegra_drm_client *client;
d43f81cb TB	48	struct host1x_channel *channel;
	49	struct list_head list;
	50	};
	51
53fa7f72 TR	52	struct tegra_drm_client_ops {
53fa7f72 TR	53	int (open_channel)(struct tegra_drm_client client,
c88c3630 TR	54	struct tegra_drm_context *context);
c88c3630 TR	55	void (close_channel)(struct tegra_drm_context context);
c40f0f1a	56	int (is_addr_reg)(struct device dev, u32 class, u32 offset);
c88c3630	57	int (submit)(struct tegra_drm_context context,
d43f81cb TB	58	struct drm_tegra_submit args, struct drm_device drm,
	59	struct drm_file *file);
	60	};
	61
c40f0f1a TR	62	int tegra_drm_submit(struct tegra_drm_context *context,
	63	struct drm_tegra_submit args, struct drm_device drm,
	64	struct drm_file *file);
	65
53fa7f72 TR	66	struct tegra_drm_client {
53fa7f72 TR	67	struct host1x_client base;
776dc384	68	struct list_head list;
d43f81cb	69
53fa7f72	70	const struct tegra_drm_client_ops *ops;
d8f4a9ed TR	71	};
d8f4a9ed TR	72
53fa7f72	73	static inline struct tegra_drm_client *
776dc384	74	host1x_to_drm_client(struct host1x_client *client)
53fa7f72 TR	75	{
	76	return container_of(client, struct tegra_drm_client, base);
	77	}
	78
776dc384 TR	79	extern int tegra_drm_register_client(struct tegra_drm *tegra,
	80	struct tegra_drm_client *client);
	81	extern int tegra_drm_unregister_client(struct tegra_drm *tegra,
	82	struct tegra_drm_client *client);
	83
386a2a71 TR	84	extern int tegra_drm_init(struct tegra_drm tegra, struct drm_device drm);
386a2a71 TR	85	extern int tegra_drm_exit(struct tegra_drm *tegra);
d8f4a9ed	86
d8f4a9ed TR	87	struct tegra_output;
	88
	89	struct tegra_dc {
776dc384	90	struct host1x_client client;
d8f4a9ed	91	struct device *dev;
d18d3033	92	spinlock_t lock;
d8f4a9ed TR	93
	94	struct drm_crtc base;
	95	int pipe;
	96
	97	struct clk *clk;
ca48080a	98	struct reset_control *rst;
d8f4a9ed TR	99	void __iomem *regs;
	100	int irq;
	101
	102	struct tegra_output *rgb;
	103
	104	struct list_head list;
	105
	106	struct drm_info_list *debugfs_files;
	107	struct drm_minor *minor;
	108	struct dentry *debugfs;
3c03c46a TR	109
	110	/* page-flip handling */
	111	struct drm_pending_vblank_event *event;
d8f4a9ed TR	112	};
d8f4a9ed TR	113
53fa7f72	114	static inline struct tegra_dc *
776dc384	115	host1x_client_to_dc(struct host1x_client *client)
d8f4a9ed TR	116	{
	117	return container_of(client, struct tegra_dc, client);
	118	}
	119
	120	static inline struct tegra_dc to_tegra_dc(struct drm_crtc crtc)
	121	{
37826519	122	return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
d8f4a9ed TR	123	}
	124
	125	static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value,
	126	unsigned long reg)
	127	{
	128	writel(value, dc->regs + (reg << 2));
	129	}
	130
	131	static inline unsigned long tegra_dc_readl(struct tegra_dc *dc,
	132	unsigned long reg)
	133	{
	134	return readl(dc->regs + (reg << 2));
	135	}
	136
f34bc787 TR	137	struct tegra_dc_window {
	138	struct {
	139	unsigned int x;
	140	unsigned int y;
	141	unsigned int w;
	142	unsigned int h;
	143	} src;
	144	struct {
	145	unsigned int x;
	146	unsigned int y;
	147	unsigned int w;
	148	unsigned int h;
	149	} dst;
	150	unsigned int bits_per_pixel;
	151	unsigned int format;
	152	unsigned int stride[2];
	153	unsigned long base[3];
db7fbdfd	154	bool bottom_up;
773af77f	155	bool tiled;
f34bc787 TR	156	};
	157
	158	/* from dc.c */
	159	extern unsigned int tegra_dc_format(uint32_t format);
	160	extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
	161	const struct tegra_dc_window *window);
6e5ff998 TR	162	extern void tegra_dc_enable_vblank(struct tegra_dc *dc);
6e5ff998 TR	163	extern void tegra_dc_disable_vblank(struct tegra_dc *dc);
3c03c46a TR	164	extern void tegra_dc_cancel_page_flip(struct drm_crtc *crtc,
3c03c46a TR	165	struct drm_file *file);
f34bc787	166
d8f4a9ed TR	167	struct tegra_output_ops {
	168	int (enable)(struct tegra_output output);
	169	int (disable)(struct tegra_output output);
	170	int (setup_clock)(struct tegra_output output, struct clk *clk,
	171	unsigned long pclk);
	172	int (check_mode)(struct tegra_output output,
	173	struct drm_display_mode *mode,
	174	enum drm_mode_status *status);
	175	};
	176
	177	enum tegra_output_type {
	178	TEGRA_OUTPUT_RGB,
edec4af4	179	TEGRA_OUTPUT_HDMI,
d8f4a9ed TR	180	};
	181
	182	struct tegra_output {
	183	struct device_node *of_node;
	184	struct device *dev;
	185
	186	const struct tegra_output_ops *ops;
	187	enum tegra_output_type type;
	188
	189	struct i2c_adapter *ddc;
	190	const struct edid *edid;
	191	unsigned int hpd_irq;
	192	int hpd_gpio;
	193
	194	struct drm_encoder encoder;
	195	struct drm_connector connector;
	196	};
	197
	198	static inline struct tegra_output encoder_to_output(struct drm_encoder e)
	199	{
	200	return container_of(e, struct tegra_output, encoder);
	201	}
	202
	203	static inline struct tegra_output connector_to_output(struct drm_connector c)
	204	{
	205	return container_of(c, struct tegra_output, connector);
	206	}
	207
	208	static inline int tegra_output_enable(struct tegra_output *output)
	209	{
	210	if (output && output->ops && output->ops->enable)
	211	return output->ops->enable(output);
	212
	213	return output ? -ENOSYS : -EINVAL;
	214	}
	215
	216	static inline int tegra_output_disable(struct tegra_output *output)
	217	{
	218	if (output && output->ops && output->ops->disable)
	219	return output->ops->disable(output);
	220
	221	return output ? -ENOSYS : -EINVAL;
	222	}
	223
	224	static inline int tegra_output_setup_clock(struct tegra_output *output,
	225	struct clk *clk, unsigned long pclk)
	226	{
	227	if (output && output->ops && output->ops->setup_clock)
	228	return output->ops->setup_clock(output, clk, pclk);
	229
	230	return output ? -ENOSYS : -EINVAL;
	231	}
	232
	233	static inline int tegra_output_check_mode(struct tegra_output *output,
	234	struct drm_display_mode *mode,
	235	enum drm_mode_status *status)
	236	{
	237	if (output && output->ops && output->ops->check_mode)
	238	return output->ops->check_mode(output, mode, status);
	239
	240	return output ? -ENOSYS : -EINVAL;
	241	}
	242
776dc384 TR	243	/* from bus.c */
	244	int drm_host1x_init(struct drm_driver driver, struct host1x_device device);
	245	void drm_host1x_exit(struct drm_driver driver, struct host1x_device device);
	246
d8f4a9ed TR	247	/* from rgb.c */
d8f4a9ed TR	248	extern int tegra_dc_rgb_probe(struct tegra_dc *dc);
59d29c0e	249	extern int tegra_dc_rgb_remove(struct tegra_dc *dc);
d8f4a9ed TR	250	extern int tegra_dc_rgb_init(struct drm_device drm, struct tegra_dc dc);
	251	extern int tegra_dc_rgb_exit(struct tegra_dc *dc);
	252
	253	/* from output.c */
59d29c0e TR	254	extern int tegra_output_probe(struct tegra_output *output);
59d29c0e TR	255	extern int tegra_output_remove(struct tegra_output *output);
d8f4a9ed TR	256	extern int tegra_output_init(struct drm_device drm, struct tegra_output output);
	257	extern int tegra_output_exit(struct tegra_output *output);
	258
d8f4a9ed	259	/* from fb.c */
de2ba664 AM	260	struct tegra_bo tegra_fb_get_plane(struct drm_framebuffer framebuffer,
de2ba664 AM	261	unsigned int index);
db7fbdfd	262	bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
773af77f	263	bool tegra_fb_is_tiled(struct drm_framebuffer *framebuffer);
d8f4a9ed TR	264	extern int tegra_drm_fb_init(struct drm_device *drm);
d8f4a9ed TR	265	extern void tegra_drm_fb_exit(struct drm_device *drm);
de2ba664	266	extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
d8f4a9ed	267
776dc384 TR	268	extern struct platform_driver tegra_dc_driver;
	269	extern struct platform_driver tegra_hdmi_driver;
	270	extern struct platform_driver tegra_gr2d_driver;
5f60ed0d	271	extern struct platform_driver tegra_gr3d_driver;
d8f4a9ed	272
4231c6b0	273	#endif /* HOST1X_DRM_H */