[deliverable/linux.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 <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 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 (*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;
	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 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_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 platform_driver tegra_dc_driver;
extern struct platform_driver tegra_hdmi_driver;
extern struct platform_driver tegra_gr2d_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
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
386a2a71	33	struct tegra_drm {
d8f4a9ed	34	struct drm_device *drm;
d8f4a9ed TR	35
	36	struct mutex clients_lock;
	37	struct list_head clients;
	38
de2ba664	39	struct tegra_fbdev *fbdev;
d8f4a9ed TR	40	};
d8f4a9ed TR	41
53fa7f72	42	struct tegra_drm_client;
d8f4a9ed	43
c88c3630	44	struct tegra_drm_context {
53fa7f72	45	struct tegra_drm_client *client;
d43f81cb TB	46	struct host1x_channel *channel;
	47	struct list_head list;
	48	};
	49
53fa7f72 TR	50	struct tegra_drm_client_ops {
53fa7f72 TR	51	int (open_channel)(struct tegra_drm_client client,
c88c3630 TR	52	struct tegra_drm_context *context);
	53	void (close_channel)(struct tegra_drm_context context);
	54	int (submit)(struct tegra_drm_context context,
d43f81cb TB	55	struct drm_tegra_submit args, struct drm_device drm,
	56	struct drm_file *file);
	57	};
	58
53fa7f72 TR	59	struct tegra_drm_client {
53fa7f72 TR	60	struct host1x_client base;
776dc384	61	struct list_head list;
d43f81cb	62
53fa7f72	63	const struct tegra_drm_client_ops *ops;
d8f4a9ed TR	64	};
d8f4a9ed TR	65
53fa7f72	66	static inline struct tegra_drm_client *
776dc384	67	host1x_to_drm_client(struct host1x_client *client)
53fa7f72 TR	68	{
	69	return container_of(client, struct tegra_drm_client, base);
	70	}
	71
776dc384 TR	72	extern int tegra_drm_register_client(struct tegra_drm *tegra,
	73	struct tegra_drm_client *client);
	74	extern int tegra_drm_unregister_client(struct tegra_drm *tegra,
	75	struct tegra_drm_client *client);
	76
386a2a71 TR	77	extern int tegra_drm_init(struct tegra_drm tegra, struct drm_device drm);
386a2a71 TR	78	extern int tegra_drm_exit(struct tegra_drm *tegra);
d8f4a9ed	79
d8f4a9ed TR	80	struct tegra_output;
	81
	82	struct tegra_dc {
776dc384	83	struct host1x_client client;
d8f4a9ed	84	struct device *dev;
d18d3033	85	spinlock_t lock;
d8f4a9ed TR	86
	87	struct drm_crtc base;
	88	int pipe;
	89
	90	struct clk *clk;
d8f4a9ed TR	91	void __iomem *regs;
	92	int irq;
	93
	94	struct tegra_output *rgb;
	95
	96	struct list_head list;
	97
	98	struct drm_info_list *debugfs_files;
	99	struct drm_minor *minor;
	100	struct dentry *debugfs;
3c03c46a TR	101
	102	/* page-flip handling */
	103	struct drm_pending_vblank_event *event;
d8f4a9ed TR	104	};
d8f4a9ed TR	105
53fa7f72	106	static inline struct tegra_dc *
776dc384	107	host1x_client_to_dc(struct host1x_client *client)
d8f4a9ed TR	108	{
	109	return container_of(client, struct tegra_dc, client);
	110	}
	111
	112	static inline struct tegra_dc to_tegra_dc(struct drm_crtc crtc)
	113	{
	114	return container_of(crtc, struct tegra_dc, base);
	115	}
	116
	117	static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value,
	118	unsigned long reg)
	119	{
	120	writel(value, dc->regs + (reg << 2));
	121	}
	122
	123	static inline unsigned long tegra_dc_readl(struct tegra_dc *dc,
	124	unsigned long reg)
	125	{
	126	return readl(dc->regs + (reg << 2));
	127	}
	128
f34bc787 TR	129	struct tegra_dc_window {
	130	struct {
	131	unsigned int x;
	132	unsigned int y;
	133	unsigned int w;
	134	unsigned int h;
	135	} src;
	136	struct {
	137	unsigned int x;
	138	unsigned int y;
	139	unsigned int w;
	140	unsigned int h;
	141	} dst;
	142	unsigned int bits_per_pixel;
	143	unsigned int format;
	144	unsigned int stride[2];
	145	unsigned long base[3];
	146	};
	147
	148	/* from dc.c */
	149	extern unsigned int tegra_dc_format(uint32_t format);
	150	extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
	151	const struct tegra_dc_window *window);
6e5ff998 TR	152	extern void tegra_dc_enable_vblank(struct tegra_dc *dc);
6e5ff998 TR	153	extern void tegra_dc_disable_vblank(struct tegra_dc *dc);
3c03c46a TR	154	extern void tegra_dc_cancel_page_flip(struct drm_crtc *crtc,
3c03c46a TR	155	struct drm_file *file);
f34bc787	156
d8f4a9ed TR	157	struct tegra_output_ops {
	158	int (enable)(struct tegra_output output);
	159	int (disable)(struct tegra_output output);
	160	int (setup_clock)(struct tegra_output output, struct clk *clk,
	161	unsigned long pclk);
	162	int (check_mode)(struct tegra_output output,
	163	struct drm_display_mode *mode,
	164	enum drm_mode_status *status);
	165	};
	166
	167	enum tegra_output_type {
	168	TEGRA_OUTPUT_RGB,
edec4af4	169	TEGRA_OUTPUT_HDMI,
d8f4a9ed TR	170	};
	171
	172	struct tegra_output {
	173	struct device_node *of_node;
	174	struct device *dev;
	175
	176	const struct tegra_output_ops *ops;
	177	enum tegra_output_type type;
	178
	179	struct i2c_adapter *ddc;
	180	const struct edid *edid;
	181	unsigned int hpd_irq;
	182	int hpd_gpio;
	183
	184	struct drm_encoder encoder;
	185	struct drm_connector connector;
	186	};
	187
	188	static inline struct tegra_output encoder_to_output(struct drm_encoder e)
	189	{
	190	return container_of(e, struct tegra_output, encoder);
	191	}
	192
	193	static inline struct tegra_output connector_to_output(struct drm_connector c)
	194	{
	195	return container_of(c, struct tegra_output, connector);
	196	}
	197
	198	static inline int tegra_output_enable(struct tegra_output *output)
	199	{
	200	if (output && output->ops && output->ops->enable)
	201	return output->ops->enable(output);
	202
	203	return output ? -ENOSYS : -EINVAL;
	204	}
	205
	206	static inline int tegra_output_disable(struct tegra_output *output)
	207	{
	208	if (output && output->ops && output->ops->disable)
	209	return output->ops->disable(output);
	210
	211	return output ? -ENOSYS : -EINVAL;
	212	}
	213
	214	static inline int tegra_output_setup_clock(struct tegra_output *output,
	215	struct clk *clk, unsigned long pclk)
	216	{
	217	if (output && output->ops && output->ops->setup_clock)
	218	return output->ops->setup_clock(output, clk, pclk);
	219
	220	return output ? -ENOSYS : -EINVAL;
	221	}
	222
	223	static inline int tegra_output_check_mode(struct tegra_output *output,
	224	struct drm_display_mode *mode,
	225	enum drm_mode_status *status)
	226	{
	227	if (output && output->ops && output->ops->check_mode)
	228	return output->ops->check_mode(output, mode, status);
	229
	230	return output ? -ENOSYS : -EINVAL;
	231	}
	232
776dc384 TR	233	/* from bus.c */
	234	int drm_host1x_init(struct drm_driver driver, struct host1x_device device);
	235	void drm_host1x_exit(struct drm_driver driver, struct host1x_device device);
	236
d8f4a9ed TR	237	/* from rgb.c */
	238	extern int tegra_dc_rgb_probe(struct tegra_dc *dc);
	239	extern int tegra_dc_rgb_init(struct drm_device drm, struct tegra_dc dc);
	240	extern int tegra_dc_rgb_exit(struct tegra_dc *dc);
	241
	242	/* from output.c */
	243	extern int tegra_output_parse_dt(struct tegra_output *output);
	244	extern int tegra_output_init(struct drm_device drm, struct tegra_output output);
	245	extern int tegra_output_exit(struct tegra_output *output);
	246
d8f4a9ed	247	/* from fb.c */
de2ba664 AM	248	struct tegra_bo tegra_fb_get_plane(struct drm_framebuffer framebuffer,
de2ba664 AM	249	unsigned int index);
d8f4a9ed TR	250	extern int tegra_drm_fb_init(struct drm_device *drm);
d8f4a9ed TR	251	extern void tegra_drm_fb_exit(struct drm_device *drm);
de2ba664	252	extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
d8f4a9ed	253
776dc384 TR	254	extern struct platform_driver tegra_dc_driver;
	255	extern struct platform_driver tegra_hdmi_driver;
	256	extern struct platform_driver tegra_gr2d_driver;
d8f4a9ed	257
4231c6b0	258	#endif /* HOST1X_DRM_H */