drivers/gpu/drm/gma500/psb_intel_drv.h - kernel/bruno - Git at Google

 /*
  * Copyright (c) 2009-2011, Intel Corporation.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  *
  * You should have received a copy of the GNU General Public License along with
  * this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  *
  */

 #ifndef __INTEL_DRV_H__
 #define __INTEL_DRV_H__

 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
 #include <linux/gpio.h>
 #include "gma_display.h"

 /*
  * Display related stuff
  */

 /* maximum connectors per crtcs in the mode set */
 #define INTELFB_CONN_LIMIT 4

 /* Intel Pipe Clone Bit */
 #define INTEL_HDMIB_CLONE_BIT 1
 #define INTEL_HDMIC_CLONE_BIT 2
 #define INTEL_HDMID_CLONE_BIT 3
 #define INTEL_HDMIE_CLONE_BIT 4
 #define INTEL_HDMIF_CLONE_BIT 5
 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
 #define INTEL_SDVO_TV_CLONE_BIT 7
 #define INTEL_SDVO_LVDS_CLONE_BIT 8
 #define INTEL_ANALOG_CLONE_BIT 9
 #define INTEL_TV_CLONE_BIT 10
 #define INTEL_DP_B_CLONE_BIT 11
 #define INTEL_DP_C_CLONE_BIT 12
 #define INTEL_DP_D_CLONE_BIT 13
 #define INTEL_LVDS_CLONE_BIT 14
 #define INTEL_DVO_TMDS_CLONE_BIT 15
 #define INTEL_DVO_LVDS_CLONE_BIT 16
 #define INTEL_EDP_CLONE_BIT 17

 /* these are outputs from the chip - integrated only
  * external chips are via DVO or SDVO output */
 #define INTEL_OUTPUT_UNUSED 0
 #define INTEL_OUTPUT_ANALOG 1
 #define INTEL_OUTPUT_DVO 2
 #define INTEL_OUTPUT_SDVO 3
 #define INTEL_OUTPUT_LVDS 4
 #define INTEL_OUTPUT_TVOUT 5
 #define INTEL_OUTPUT_HDMI 6
 #define INTEL_OUTPUT_MIPI 7
 #define INTEL_OUTPUT_MIPI2 8
 #define INTEL_OUTPUT_DISPLAYPORT 9
 #define INTEL_OUTPUT_EDP 10

 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)

 static inline void
 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
 				int multiplier)
 {
 	mode->clock *= multiplier;
 	mode->private_flags |= multiplier;
 }

 static inline int
 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
 {
 	return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
 	       >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
 }


 /*
  * Hold information useally put on the device driver privates here,
  * since it needs to be shared across multiple of devices drivers privates.
  */
 struct psb_intel_mode_device {

 	/*
 	 * Abstracted memory manager operations
 	 */
 	 size_t(*bo_offset) (struct drm_device *dev, void *bo);

 	/*
 	 * LVDS info
 	 */
 	int backlight_duty_cycle;	/* restore backlight to this value */
 	bool panel_wants_dither;
 	struct drm_display_mode *panel_fixed_mode;
 	struct drm_display_mode *panel_fixed_mode2;
 	struct drm_display_mode *vbt_mode;	/* if any */

 	uint32_t saveBLC_PWM_CTL;
 };

 struct psb_intel_i2c_chan {
 	/* for getting at dev. private (mmio etc.) */
 	struct drm_device *drm_dev;
 	u32 reg;		/* GPIO reg */
 	struct i2c_adapter adapter;
 	struct i2c_algo_bit_data algo;
 	u8 slave_addr;
 };

 struct gma_encoder {
 	struct drm_encoder base;
 	int type;
 	bool needs_tv_clock;
 	void (*hot_plug)(struct gma_encoder *);
 	int crtc_mask;
 	int clone_mask;
 	u32 ddi_select;	/* Channel info */
 #define DDI0_SELECT	0x01
 #define DDI1_SELECT	0x02
 #define DP_MASK		0x8000
 #define DDI_MASK	0x03
 	void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */

 	/* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 	   own set of output privates */
 	struct psb_intel_i2c_chan *i2c_bus;
 	struct psb_intel_i2c_chan *ddc_bus;
 };

 struct gma_connector {
 	struct drm_connector base;
 	struct gma_encoder *encoder;
 };

 struct psb_intel_crtc_state {
 	uint32_t saveDSPCNTR;
 	uint32_t savePIPECONF;
 	uint32_t savePIPESRC;
 	uint32_t saveDPLL;
 	uint32_t saveFP0;
 	uint32_t saveFP1;
 	uint32_t saveHTOTAL;
 	uint32_t saveHBLANK;
 	uint32_t saveHSYNC;
 	uint32_t saveVTOTAL;
 	uint32_t saveVBLANK;
 	uint32_t saveVSYNC;
 	uint32_t saveDSPSTRIDE;
 	uint32_t saveDSPSIZE;
 	uint32_t saveDSPPOS;
 	uint32_t saveDSPBASE;
 	uint32_t savePalette[256];
 };

 struct gma_crtc {
 	struct drm_crtc base;
 	int pipe;
 	int plane;
 	uint32_t cursor_addr;
 	struct gtt_range *cursor_gt;
 	u8 lut_r[256], lut_g[256], lut_b[256];
 	u8 lut_adj[256];
 	struct psb_intel_framebuffer *fbdev_fb;
 	/* a mode_set for fbdev users on this crtc */
 	struct drm_mode_set mode_set;

 	/* GEM object that holds our cursor */
 	struct drm_gem_object *cursor_obj;

 	struct drm_display_mode saved_mode;
 	struct drm_display_mode saved_adjusted_mode;

 	struct psb_intel_mode_device *mode_dev;

 	/*crtc mode setting flags*/
 	u32 mode_flags;

 	bool active;

 	/* Saved Crtc HW states */
 	struct psb_intel_crtc_state *crtc_state;

 	const struct gma_clock_funcs *clock_funcs;
 };

 #define to_gma_crtc(x)	\
 		container_of(x, struct gma_crtc, base)
 #define to_gma_connector(x) \
 		container_of(x, struct gma_connector, base)
 #define to_gma_encoder(x)	\
 		container_of(x, struct gma_encoder, base)
 #define to_psb_intel_framebuffer(x)	\
 		container_of(x, struct psb_intel_framebuffer, base)

 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 					const u32 reg, const char *name);
 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 int psb_intel_ddc_get_modes(struct drm_connector *connector,
 			    struct i2c_adapter *adapter);
 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);

 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 			    struct psb_intel_mode_device *mode_dev);
 extern void psb_intel_crt_init(struct drm_device *dev);
 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 extern void psb_intel_dvo_init(struct drm_device *dev);
 extern void psb_intel_tv_init(struct drm_device *dev);
 extern void psb_intel_lvds_init(struct drm_device *dev,
 			    struct psb_intel_mode_device *mode_dev);
 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 extern void oaktrail_lvds_init(struct drm_device *dev,
 			   struct psb_intel_mode_device *mode_dev);
 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 extern void oaktrail_dsi_init(struct drm_device *dev,
 			   struct psb_intel_mode_device *mode_dev);
 extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
 extern void mid_dsi_init(struct drm_device *dev,
 		    struct psb_intel_mode_device *mode_dev, int dsi_num);

 extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
 extern void gma_connector_attach_encoder(struct gma_connector *connector,
 					 struct gma_encoder *encoder);

 static inline struct gma_encoder *gma_attached_encoder(
 						struct drm_connector *connector)
 {
 	return to_gma_connector(connector)->encoder;
 }

 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 						    struct drm_crtc *crtc);
 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 						 int pipe);
 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 					     int sdvoB);
 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 				   int enable);
 extern int intelfb_probe(struct drm_device *dev);
 extern int intelfb_remove(struct drm_device *dev,
 			  struct drm_framebuffer *fb);
 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 				      const struct drm_display_mode *mode,
 				      struct drm_display_mode *adjusted_mode);
 extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
 				     struct drm_display_mode *mode);
 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 					struct drm_property *property,
 					uint64_t value);
 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;

 /* intel_gmbus.c */
 extern void gma_intel_i2c_reset(struct drm_device *dev);
 extern int gma_intel_setup_gmbus(struct drm_device *dev);
 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 extern void gma_intel_teardown_gmbus(struct drm_device *dev);

 /* DP support */
 extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 					struct drm_display_mode *mode,
 					struct drm_display_mode *adjusted_mode);

 extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);

 extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 extern void cdv_sb_reset(struct drm_device *dev);

 extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);

 #endif				/* __INTEL_DRV_H__ */
	/*
	* Copyright (c) 2009-2011, Intel Corporation.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	* more details.
	*
	* You should have received a copy of the GNU General Public License along with
	* this program; if not, write to the Free Software Foundation, Inc.,
	* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
	*
	*/

	#ifndef __INTEL_DRV_H__
	#define __INTEL_DRV_H__

	#include <linux/i2c.h>
	#include <linux/i2c-algo-bit.h>
	#include <drm/drm_crtc.h>
	#include <drm/drm_crtc_helper.h>
	#include <linux/gpio.h>
	#include "gma_display.h"

	/*
	* Display related stuff
	*/

	/* maximum connectors per crtcs in the mode set */
	#define INTELFB_CONN_LIMIT 4

	/* Intel Pipe Clone Bit */
	#define INTEL_HDMIB_CLONE_BIT 1
	#define INTEL_HDMIC_CLONE_BIT 2
	#define INTEL_HDMID_CLONE_BIT 3
	#define INTEL_HDMIE_CLONE_BIT 4
	#define INTEL_HDMIF_CLONE_BIT 5
	#define INTEL_SDVO_NON_TV_CLONE_BIT 6
	#define INTEL_SDVO_TV_CLONE_BIT 7
	#define INTEL_SDVO_LVDS_CLONE_BIT 8
	#define INTEL_ANALOG_CLONE_BIT 9
	#define INTEL_TV_CLONE_BIT 10
	#define INTEL_DP_B_CLONE_BIT 11
	#define INTEL_DP_C_CLONE_BIT 12
	#define INTEL_DP_D_CLONE_BIT 13
	#define INTEL_LVDS_CLONE_BIT 14
	#define INTEL_DVO_TMDS_CLONE_BIT 15
	#define INTEL_DVO_LVDS_CLONE_BIT 16
	#define INTEL_EDP_CLONE_BIT 17

	/* these are outputs from the chip - integrated only
	* external chips are via DVO or SDVO output */
	#define INTEL_OUTPUT_UNUSED 0
	#define INTEL_OUTPUT_ANALOG 1
	#define INTEL_OUTPUT_DVO 2
	#define INTEL_OUTPUT_SDVO 3
	#define INTEL_OUTPUT_LVDS 4
	#define INTEL_OUTPUT_TVOUT 5
	#define INTEL_OUTPUT_HDMI 6
	#define INTEL_OUTPUT_MIPI 7
	#define INTEL_OUTPUT_MIPI2 8
	#define INTEL_OUTPUT_DISPLAYPORT 9
	#define INTEL_OUTPUT_EDP 10

	#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
	#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)

	static inline void
	psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
	int multiplier)
	{
	mode->clock *= multiplier;
	mode->private_flags \|= multiplier;
	}

	static inline int
	psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
	{
	return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
	>> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
	}


	/*
	* Hold information useally put on the device driver privates here,
	* since it needs to be shared across multiple of devices drivers privates.
	*/
	struct psb_intel_mode_device {

	/*
	* Abstracted memory manager operations
	*/
	size_t(bo_offset) (struct drm_device dev, void *bo);

	/*
	* LVDS info
	*/
	int backlight_duty_cycle; /* restore backlight to this value */
	bool panel_wants_dither;
	struct drm_display_mode *panel_fixed_mode;
	struct drm_display_mode *panel_fixed_mode2;
	struct drm_display_mode vbt_mode; / if any */

	uint32_t saveBLC_PWM_CTL;
	};

	struct psb_intel_i2c_chan {
	/* for getting at dev. private (mmio etc.) */
	struct drm_device *drm_dev;
	u32 reg; /* GPIO reg */
	struct i2c_adapter adapter;
	struct i2c_algo_bit_data algo;
	u8 slave_addr;
	};

	struct gma_encoder {
	struct drm_encoder base;
	int type;
	bool needs_tv_clock;
	void (hot_plug)(struct gma_encoder );
	int crtc_mask;
	int clone_mask;
	u32 ddi_select; /* Channel info */
	#define DDI0_SELECT 0x01
	#define DDI1_SELECT 0x02
	#define DP_MASK 0x8000
	#define DDI_MASK 0x03
	void dev_priv; / For sdvo_priv, lvds_priv, etc... */

	/* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
	own set of output privates */
	struct psb_intel_i2c_chan *i2c_bus;
	struct psb_intel_i2c_chan *ddc_bus;
	};

	struct gma_connector {
	struct drm_connector base;
	struct gma_encoder *encoder;
	};

	struct psb_intel_crtc_state {
	uint32_t saveDSPCNTR;
	uint32_t savePIPECONF;
	uint32_t savePIPESRC;
	uint32_t saveDPLL;
	uint32_t saveFP0;
	uint32_t saveFP1;
	uint32_t saveHTOTAL;
	uint32_t saveHBLANK;
	uint32_t saveHSYNC;
	uint32_t saveVTOTAL;
	uint32_t saveVBLANK;
	uint32_t saveVSYNC;
	uint32_t saveDSPSTRIDE;
	uint32_t saveDSPSIZE;
	uint32_t saveDSPPOS;
	uint32_t saveDSPBASE;
	uint32_t savePalette[256];
	};

	struct gma_crtc {
	struct drm_crtc base;
	int pipe;
	int plane;
	uint32_t cursor_addr;
	struct gtt_range *cursor_gt;
	u8 lut_r[256], lut_g[256], lut_b[256];
	u8 lut_adj[256];
	struct psb_intel_framebuffer *fbdev_fb;
	/* a mode_set for fbdev users on this crtc */
	struct drm_mode_set mode_set;

	/* GEM object that holds our cursor */
	struct drm_gem_object *cursor_obj;

	struct drm_display_mode saved_mode;
	struct drm_display_mode saved_adjusted_mode;

	struct psb_intel_mode_device *mode_dev;

	/crtc mode setting flags/
	u32 mode_flags;

	bool active;

	/* Saved Crtc HW states */
	struct psb_intel_crtc_state *crtc_state;

	const struct gma_clock_funcs *clock_funcs;
	};

	#define to_gma_crtc(x) \
	container_of(x, struct gma_crtc, base)
	#define to_gma_connector(x) \
	container_of(x, struct gma_connector, base)
	#define to_gma_encoder(x) \
	container_of(x, struct gma_encoder, base)
	#define to_psb_intel_framebuffer(x) \
	container_of(x, struct psb_intel_framebuffer, base)

	struct psb_intel_i2c_chan psb_intel_i2c_create(struct drm_device dev,
	const u32 reg, const char *name);
	void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
	int psb_intel_ddc_get_modes(struct drm_connector *connector,
	struct i2c_adapter *adapter);
	extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);

	extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
	struct psb_intel_mode_device *mode_dev);
	extern void psb_intel_crt_init(struct drm_device *dev);
	extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
	extern void psb_intel_dvo_init(struct drm_device *dev);
	extern void psb_intel_tv_init(struct drm_device *dev);
	extern void psb_intel_lvds_init(struct drm_device *dev,
	struct psb_intel_mode_device *mode_dev);
	extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
	extern void oaktrail_lvds_init(struct drm_device *dev,
	struct psb_intel_mode_device *mode_dev);
	extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
	extern void oaktrail_dsi_init(struct drm_device *dev,
	struct psb_intel_mode_device *mode_dev);
	extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
	extern void mid_dsi_init(struct drm_device *dev,
	struct psb_intel_mode_device *mode_dev, int dsi_num);

	extern struct drm_encoder gma_best_encoder(struct drm_connector connector);
	extern void gma_connector_attach_encoder(struct gma_connector *connector,
	struct gma_encoder *encoder);

	static inline struct gma_encoder *gma_attached_encoder(
	struct drm_connector *connector)
	{
	return to_gma_connector(connector)->encoder;
	}

	extern struct drm_display_mode psb_intel_crtc_mode_get(struct drm_device dev,
	struct drm_crtc *crtc);
	extern struct drm_crtc psb_intel_get_crtc_from_pipe(struct drm_device dev,
	int pipe);
	extern struct drm_connector psb_intel_sdvo_find(struct drm_device dev,
	int sdvoB);
	extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
	extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
	int enable);
	extern int intelfb_probe(struct drm_device *dev);
	extern int intelfb_remove(struct drm_device *dev,
	struct drm_framebuffer *fb);
	extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
	const struct drm_display_mode *mode,
	struct drm_display_mode *adjusted_mode);
	extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
	struct drm_display_mode *mode);
	extern int psb_intel_lvds_set_property(struct drm_connector *connector,
	struct drm_property *property,
	uint64_t value);
	extern void psb_intel_lvds_destroy(struct drm_connector *connector);
	extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;

	/* intel_gmbus.c */
	extern void gma_intel_i2c_reset(struct drm_device *dev);
	extern int gma_intel_setup_gmbus(struct drm_device *dev);
	extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
	extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
	extern void gma_intel_teardown_gmbus(struct drm_device *dev);

	/* DP support */
	extern void cdv_intel_dp_init(struct drm_device dev, struct psb_intel_mode_device mode_dev, int output_reg);
	extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
	struct drm_display_mode *mode,
	struct drm_display_mode *adjusted_mode);

	extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
	extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);

	extern int cdv_sb_read(struct drm_device dev, u32 reg, u32 val);
	extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
	extern void cdv_sb_reset(struct drm_device *dev);

	extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
	extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);

	#endif /* __INTEL_DRV_H__ */