text: /* SPDX-License-Identifier: MIT */
  
  #ifndef _INTEL_SIDEBAND_H_
  #define _INTEL_SIDEBAND_H_
  
  #include <linux/bitops.h>
  #include <linux/types.h>
  
  struct drm_i915_private;
  enum pipe;
  
  enum intel_sbi_destination {
  	SBI_ICLK,
  	SBI_MPHY,
  };
  
  enum {
  	VLV_IOSF_SB_BUNIT,
  	VLV_IOSF_SB_CCK,
  	VLV_IOSF_SB_CCU,
  	VLV_IOSF_SB_DPIO,
  	VLV_IOSF_SB_FLISDSI,
  	VLV_IOSF_SB_GPIO,
  	VLV_IOSF_SB_NC,
  	VLV_IOSF_SB_PUNIT,
  };
  
  void vlv_iosf_sb_get(struct drm_i915_private *i915, unsigned long ports);
  u32 vlv_iosf_sb_read(struct drm_i915_private *i915, u8 port, u32 reg);
  void vlv_iosf_sb_write(struct drm_i915_private *i915,
  		       u8 port, u32 reg, u32 val);
  void vlv_iosf_sb_put(struct drm_i915_private *i915, unsigned long ports);
  
  static inline void vlv_bunit_get(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_BUNIT));
  }
  
  u32 vlv_bunit_read(struct drm_i915_private *i915, u32 reg);
  void vlv_bunit_write(struct drm_i915_private *i915, u32 reg, u32 val);
  
  static inline void vlv_bunit_put(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_BUNIT));
  }
  
  static inline void vlv_cck_get(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_CCK));
  }
  
  u32 vlv_cck_read(struct drm_i915_private *i915, u32 reg);
  void vlv_cck_write(struct drm_i915_private *i915, u32 reg, u32 val);
  
  static inline void vlv_cck_put(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_CCK));
  }
  
  static inline void vlv_ccu_get(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_CCU));
  }
  
  u32 vlv_ccu_read(struct drm_i915_private *i915, u32 reg);
  void vlv_ccu_write(struct drm_i915_private *i915, u32 reg, u32 val);
  
  static inline void vlv_ccu_put(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_CCU));
  }
  
  static inline void vlv_dpio_get(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_DPIO));
  }
  
  u32 vlv_dpio_read(struct drm_i915_private *i915, enum pipe pipe, int reg);
  void vlv_dpio_write(struct drm_i915_private *i915,
  		    enum pipe pipe, int reg, u32 val);
  
  static inline void vlv_dpio_put(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_DPIO));
  }
  
  static inline void vlv_flisdsi_get(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_FLISDSI));
  }
  
  u32 vlv_flisdsi_read(struct drm_i915_private *i915, u32 reg);
  void vlv_flisdsi_write(struct drm_i915_private *i915, u32 reg, u32 val);
  
  static inline void vlv_flisdsi_put(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_FLISDSI));
  }
  
  static inline void vlv_nc_get(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_NC));
  }
  
  u32 vlv_nc_read(struct drm_i915_private *i915, u8 addr);
  
  static inline void vlv_nc_put(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_NC));
  }
  
  static inline void vlv_punit_get(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_PUNIT));
  }
  
  u32 vlv_punit_read(struct drm_i915_private *i915, u32 addr);
  int vlv_punit_write(struct drm_i915_private *i915, u32 addr, u32 val);
  
  static inline void vlv_punit_put(struct drm_i915_private *i915)
  {
  	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_PUNIT));
  }
  
  u32 intel_sbi_read(struct drm_i915_private *i915, u16 reg,
  		   enum intel_sbi_destination destination);
  void intel_sbi_write(struct drm_i915_private *i915, u16 reg, u32 value,
  		     enum intel_sbi_destination destination);
  
  int sandybridge_pcode_read(struct drm_i915_private *i915, u32 mbox,
  			   u32 *val, u32 *val1);
  int sandybridge_pcode_write_timeout(struct drm_i915_private *i915, u32 mbox,
  				    u32 val, int fast_timeout_us,
  				    int slow_timeout_ms);
  #define sandybridge_pcode_write(i915, mbox, val)	\
  	sandybridge_pcode_write_timeout(i915, mbox, val, 500, 0)
  
  int skl_pcode_request(struct drm_i915_private *i915, u32 mbox, u32 request,
  		      u32 reply_mask, u32 reply, int timeout_base_ms);
  
  int intel_pcode_init(struct drm_i915_private *i915);
  
  #endif /* _INTEL_SIDEBAND_H */
  