drivers/gpu/drm/nouveau/nouveau_connector.h - linux - Git at Google

 /*
  * Copyright (C) 2008 Maarten Maathuis.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sublicense, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial
  * portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  */

 #ifndef __NOUVEAU_CONNECTOR_H__
 #define __NOUVEAU_CONNECTOR_H__
 #include <nvif/conn.h>
 #include <nvif/event.h>

 #include <nvhw/class/cl507d.h>
 #include <nvhw/class/cl907d.h>
 #include <nvhw/drf.h>

 #include <drm/display/drm_dp_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_util.h>

 #include "nouveau_crtc.h"
 #include "nouveau_encoder.h"

 struct nvkm_i2c_port;
 struct dcb_output;
 struct edid;

 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 struct nouveau_backlight {
 	struct backlight_device *dev;

 	struct drm_edp_backlight_info edp_info;
 	bool uses_dpcd : 1;

 	int id;
 };
 #endif

 #define nouveau_conn_atom(p)                                                   \
 	container_of((p), struct nouveau_conn_atom, state)

 struct nouveau_conn_atom {
 	struct drm_connector_state state;

 	struct {
 		/* The enum values specifically defined here match nv50/gf119
 		 * hw values, and the code relies on this.
 		 */
 		enum {
 			DITHERING_MODE_OFF =
 				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, DISABLE),
 			DITHERING_MODE_ON =
 				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, ENABLE),
 			DITHERING_MODE_DYNAMIC2X2 = DITHERING_MODE_ON |
 				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, DYNAMIC_2X2),
 			DITHERING_MODE_STATIC2X2 = DITHERING_MODE_ON |
 				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, STATIC_2X2),
 			DITHERING_MODE_TEMPORAL = DITHERING_MODE_ON |
 				NVDEF(NV907D, HEAD_SET_DITHER_CONTROL, MODE, TEMPORAL),
 			DITHERING_MODE_AUTO
 		} mode;
 		enum {
 			DITHERING_DEPTH_6BPC =
 				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_6_BITS),
 			DITHERING_DEPTH_8BPC =
 				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_8_BITS),
 			DITHERING_DEPTH_AUTO
 		} depth;
 	} dither;

 	struct {
 		int mode;	/* DRM_MODE_SCALE_* */
 		struct {
 			enum {
 				UNDERSCAN_OFF,
 				UNDERSCAN_ON,
 				UNDERSCAN_AUTO,
 			} mode;
 			u32 hborder;
 			u32 vborder;
 		} underscan;
 		bool full;
 	} scaler;

 	struct {
 		int color_vibrance;
 		int vibrant_hue;
 	} procamp;

 	union {
 		struct {
 			bool dither:1;
 			bool scaler:1;
 			bool procamp:1;
 		};
 		u8 mask;
 	} set;
 };

 struct nouveau_connector {
 	struct drm_connector base;
 	enum dcb_connector_type type;
 	u8 index;

 	struct nvif_conn conn;
 	u64 hpd_pending;
 	struct nvif_event hpd;
 	struct nvif_event irq;
 	struct work_struct irq_work;

 	struct drm_dp_aux aux;

 	/* The fixed DP encoder for this connector, if there is one */
 	struct nouveau_encoder *dp_encoder;

 	int dithering_mode;
 	int scaling_mode;

 	struct nouveau_encoder *detected_encoder;
 	struct edid *edid;
 	struct drm_display_mode *native_mode;
 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 	struct nouveau_backlight *backlight;
 #endif
 	/*
 	 * Our connector property code expects a nouveau_conn_atom struct
 	 * even on pre-nv50 where we do not support atomic. This embedded
 	 * version gets used in the non atomic modeset case.
 	 */
 	struct nouveau_conn_atom properties_state;
 };

 static inline struct nouveau_connector *nouveau_connector(
 						struct drm_connector *con)
 {
 	return container_of(con, struct nouveau_connector, base);
 }

 static inline bool
 nouveau_connector_is_mst(struct drm_connector *connector)
 {
 	const struct nouveau_encoder *nv_encoder;
 	const struct drm_encoder *encoder;

 	if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
 		return false;

 	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
 	if (!nv_encoder)
 		return false;

 	encoder = &nv_encoder->base.base;
 	return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
 }

 #define nouveau_for_each_non_mst_connector_iter(connector, iter) \
 	drm_for_each_connector_iter(connector, iter) \
 		for_each_if(!nouveau_connector_is_mst(connector))

 static inline struct nouveau_connector *
 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
 {
 	struct drm_device *dev = nv_crtc->base.dev;
 	struct drm_connector *connector;
 	struct drm_connector_list_iter conn_iter;
 	struct nouveau_connector *nv_connector = NULL;
 	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);

 	drm_connector_list_iter_begin(dev, &conn_iter);
 	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 		if (connector->encoder && connector->encoder->crtc == crtc) {
 			nv_connector = nouveau_connector(connector);
 			break;
 		}
 	}
 	drm_connector_list_iter_end(&conn_iter);

 	return nv_connector;
 }

 struct drm_connector *
 nouveau_connector_create(struct drm_device *, int id);
 void nouveau_connector_hpd(struct nouveau_connector *, u64 bits);

 extern int nouveau_tv_disable;
 extern int nouveau_ignorelid;
 extern int nouveau_duallink;
 extern int nouveau_hdmimhz;

 void nouveau_conn_attach_properties(struct drm_connector *);
 void nouveau_conn_reset(struct drm_connector *);
 struct drm_connector_state *
 nouveau_conn_atomic_duplicate_state(struct drm_connector *);
 void nouveau_conn_atomic_destroy_state(struct drm_connector *,
 				       struct drm_connector_state *);
 int nouveau_conn_atomic_set_property(struct drm_connector *,
 				     struct drm_connector_state *,
 				     struct drm_property *, u64);
 int nouveau_conn_atomic_get_property(struct drm_connector *,
 				     const struct drm_connector_state *,
 				     struct drm_property *, u64 *);
 struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
 enum drm_mode_status
 nouveau_conn_mode_clock_valid(const struct drm_display_mode *,
 			      const unsigned min_clock,
 			      const unsigned max_clock,
 			      unsigned *clock);

 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 extern int nouveau_backlight_init(struct drm_connector *);
 extern void nouveau_backlight_fini(struct drm_connector *);
 extern void nouveau_backlight_ctor(void);
 extern void nouveau_backlight_dtor(void);
 #else
 static inline int
 nouveau_backlight_init(struct drm_connector *connector)
 {
 	return 0;
 }

 static inline void
 nouveau_backlight_fini(struct drm_connector *connector) {
 }

 static inline void
 nouveau_backlight_ctor(void) {
 }

 static inline void
 nouveau_backlight_dtor(void) {
 }
 #endif

 #endif /* __NOUVEAU_CONNECTOR_H__ */
	/*
	* Copyright (C) 2008 Maarten Maathuis.
	* All Rights Reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining
	* a copy of this software and associated documentation files (the
	* "Software"), to deal in the Software without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sublicense, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice (including the
	* next paragraph) shall be included in all copies or substantial
	* portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
	* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
	* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
	* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	*
	*/

	#ifndef __NOUVEAU_CONNECTOR_H__
	#define __NOUVEAU_CONNECTOR_H__
	#include <nvif/conn.h>
	#include <nvif/event.h>

	#include <nvhw/class/cl507d.h>
	#include <nvhw/class/cl907d.h>
	#include <nvhw/drf.h>

	#include <drm/display/drm_dp_helper.h>
	#include <drm/drm_crtc.h>
	#include <drm/drm_encoder.h>
	#include <drm/drm_util.h>

	#include "nouveau_crtc.h"
	#include "nouveau_encoder.h"

	struct nvkm_i2c_port;
	struct dcb_output;
	struct edid;

	#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
	struct nouveau_backlight {
	struct backlight_device *dev;

	struct drm_edp_backlight_info edp_info;
	bool uses_dpcd : 1;

	int id;
	};
	#endif

	#define nouveau_conn_atom(p) \
	container_of((p), struct nouveau_conn_atom, state)

	struct nouveau_conn_atom {
	struct drm_connector_state state;

	struct {
	/* The enum values specifically defined here match nv50/gf119
	* hw values, and the code relies on this.
	*/
	enum {
	DITHERING_MODE_OFF =
	NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, DISABLE),
	DITHERING_MODE_ON =
	NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, ENABLE),
	DITHERING_MODE_DYNAMIC2X2 = DITHERING_MODE_ON \|
	NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, DYNAMIC_2X2),
	DITHERING_MODE_STATIC2X2 = DITHERING_MODE_ON \|
	NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, STATIC_2X2),
	DITHERING_MODE_TEMPORAL = DITHERING_MODE_ON \|
	NVDEF(NV907D, HEAD_SET_DITHER_CONTROL, MODE, TEMPORAL),
	DITHERING_MODE_AUTO
	} mode;
	enum {
	DITHERING_DEPTH_6BPC =
	NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_6_BITS),
	DITHERING_DEPTH_8BPC =
	NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_8_BITS),
	DITHERING_DEPTH_AUTO
	} depth;
	} dither;

	struct {
	int mode; /* DRM_MODE_SCALE_* */
	struct {
	enum {
	UNDERSCAN_OFF,
	UNDERSCAN_ON,
	UNDERSCAN_AUTO,
	} mode;
	u32 hborder;
	u32 vborder;
	} underscan;
	bool full;
	} scaler;

	struct {
	int color_vibrance;
	int vibrant_hue;
	} procamp;

	union {
	struct {
	bool dither:1;
	bool scaler:1;
	bool procamp:1;
	};
	u8 mask;
	} set;
	};

	struct nouveau_connector {
	struct drm_connector base;
	enum dcb_connector_type type;
	u8 index;

	struct nvif_conn conn;
	u64 hpd_pending;
	struct nvif_event hpd;
	struct nvif_event irq;
	struct work_struct irq_work;

	struct drm_dp_aux aux;

	/* The fixed DP encoder for this connector, if there is one */
	struct nouveau_encoder *dp_encoder;

	int dithering_mode;
	int scaling_mode;

	struct nouveau_encoder *detected_encoder;
	struct edid *edid;
	struct drm_display_mode *native_mode;
	#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
	struct nouveau_backlight *backlight;
	#endif
	/*
	* Our connector property code expects a nouveau_conn_atom struct
	* even on pre-nv50 where we do not support atomic. This embedded
	* version gets used in the non atomic modeset case.
	*/
	struct nouveau_conn_atom properties_state;
	};

	static inline struct nouveau_connector *nouveau_connector(
	struct drm_connector *con)
	{
	return container_of(con, struct nouveau_connector, base);
	}

	static inline bool
	nouveau_connector_is_mst(struct drm_connector *connector)
	{
	const struct nouveau_encoder *nv_encoder;
	const struct drm_encoder *encoder;

	if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
	return false;

	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
	if (!nv_encoder)
	return false;

	encoder = &nv_encoder->base.base;
	return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
	}

	#define nouveau_for_each_non_mst_connector_iter(connector, iter) \
	drm_for_each_connector_iter(connector, iter) \
	for_each_if(!nouveau_connector_is_mst(connector))

	static inline struct nouveau_connector *
	nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
	{
	struct drm_device *dev = nv_crtc->base.dev;
	struct drm_connector *connector;
	struct drm_connector_list_iter conn_iter;
	struct nouveau_connector *nv_connector = NULL;
	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);

	drm_connector_list_iter_begin(dev, &conn_iter);
	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
	if (connector->encoder && connector->encoder->crtc == crtc) {
	nv_connector = nouveau_connector(connector);
	break;
	}
	}
	drm_connector_list_iter_end(&conn_iter);

	return nv_connector;
	}

	struct drm_connector *
	nouveau_connector_create(struct drm_device *, int id);
	void nouveau_connector_hpd(struct nouveau_connector *, u64 bits);

	extern int nouveau_tv_disable;
	extern int nouveau_ignorelid;
	extern int nouveau_duallink;
	extern int nouveau_hdmimhz;

	void nouveau_conn_attach_properties(struct drm_connector *);
	void nouveau_conn_reset(struct drm_connector *);
	struct drm_connector_state *
	nouveau_conn_atomic_duplicate_state(struct drm_connector *);
	void nouveau_conn_atomic_destroy_state(struct drm_connector *,
	struct drm_connector_state *);
	int nouveau_conn_atomic_set_property(struct drm_connector *,
	struct drm_connector_state *,
	struct drm_property *, u64);
	int nouveau_conn_atomic_get_property(struct drm_connector *,
	const struct drm_connector_state *,
	struct drm_property , u64 );
	struct drm_display_mode nouveau_conn_native_mode(struct drm_connector );
	enum drm_mode_status
	nouveau_conn_mode_clock_valid(const struct drm_display_mode *,
	const unsigned min_clock,
	const unsigned max_clock,
	unsigned *clock);

	#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
	extern int nouveau_backlight_init(struct drm_connector *);
	extern void nouveau_backlight_fini(struct drm_connector *);
	extern void nouveau_backlight_ctor(void);
	extern void nouveau_backlight_dtor(void);
	#else
	static inline int
	nouveau_backlight_init(struct drm_connector *connector)
	{
	return 0;
	}

	static inline void
	nouveau_backlight_fini(struct drm_connector *connector) {
	}

	static inline void
	nouveau_backlight_ctor(void) {
	}

	static inline void
	nouveau_backlight_dtor(void) {
	}
	#endif

	#endif /* __NOUVEAU_CONNECTOR_H__ */