text: /* SPDX-License-Identifier: GPL-2.0-only */
  /*
   * Copyright (c) 2009-2011, Intel Corporation.
   */
  
  #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 <drm/drm_encoder.h>
  #include <drm/drm_probe_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;
  
  	void (*save)(struct drm_connector *connector);
  	void (*restore)(struct drm_connector *connector);
  };
  
  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_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 enum drm_mode_status 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__ */
  