1/* SPDX-License-Identifier: MIT */
  2
  3#ifndef _INTEL_SIDEBAND_H_
  4#define _INTEL_SIDEBAND_H_
  5
  6#include <linux/bitops.h>
  7#include <linux/types.h>
  8
  9struct drm_i915_private;
 10enum pipe;
 11
 12enum intel_sbi_destination {
 13	SBI_ICLK,
 14	SBI_MPHY,
 15};
 16
 17enum {
 18	VLV_IOSF_SB_BUNIT,
 19	VLV_IOSF_SB_CCK,
 20	VLV_IOSF_SB_CCU,
 21	VLV_IOSF_SB_DPIO,
 22	VLV_IOSF_SB_FLISDSI,
 23	VLV_IOSF_SB_GPIO,
 24	VLV_IOSF_SB_NC,
 25	VLV_IOSF_SB_PUNIT,
 26};
 27
 28void vlv_iosf_sb_get(struct drm_i915_private *i915, unsigned long ports);
 29u32 vlv_iosf_sb_read(struct drm_i915_private *i915, u8 port, u32 reg);
 30void vlv_iosf_sb_write(struct drm_i915_private *i915,
 31		       u8 port, u32 reg, u32 val);
 32void vlv_iosf_sb_put(struct drm_i915_private *i915, unsigned long ports);
 33
 34static inline void vlv_bunit_get(struct drm_i915_private *i915)
 35{
 36	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_BUNIT));
 37}
 38
 39u32 vlv_bunit_read(struct drm_i915_private *i915, u32 reg);
 40void vlv_bunit_write(struct drm_i915_private *i915, u32 reg, u32 val);
 41
 42static inline void vlv_bunit_put(struct drm_i915_private *i915)
 43{
 44	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_BUNIT));
 45}
 46
 47static inline void vlv_cck_get(struct drm_i915_private *i915)
 48{
 49	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_CCK));
 50}
 51
 52u32 vlv_cck_read(struct drm_i915_private *i915, u32 reg);
 53void vlv_cck_write(struct drm_i915_private *i915, u32 reg, u32 val);
 54
 55static inline void vlv_cck_put(struct drm_i915_private *i915)
 56{
 57	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_CCK));
 58}
 59
 60static inline void vlv_ccu_get(struct drm_i915_private *i915)
 61{
 62	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_CCU));
 63}
 64
 65u32 vlv_ccu_read(struct drm_i915_private *i915, u32 reg);
 66void vlv_ccu_write(struct drm_i915_private *i915, u32 reg, u32 val);
 67
 68static inline void vlv_ccu_put(struct drm_i915_private *i915)
 69{
 70	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_CCU));
 71}
 72
 73static inline void vlv_dpio_get(struct drm_i915_private *i915)
 74{
 75	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_DPIO));
 76}
 77
 78u32 vlv_dpio_read(struct drm_i915_private *i915, enum pipe pipe, int reg);
 79void vlv_dpio_write(struct drm_i915_private *i915,
 80		    enum pipe pipe, int reg, u32 val);
 81
 82static inline void vlv_dpio_put(struct drm_i915_private *i915)
 83{
 84	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_DPIO));
 85}
 86
 87static inline void vlv_flisdsi_get(struct drm_i915_private *i915)
 88{
 89	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_FLISDSI));
 90}
 91
 92u32 vlv_flisdsi_read(struct drm_i915_private *i915, u32 reg);
 93void vlv_flisdsi_write(struct drm_i915_private *i915, u32 reg, u32 val);
 94
 95static inline void vlv_flisdsi_put(struct drm_i915_private *i915)
 96{
 97	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_FLISDSI));
 98}
 99
100static inline void vlv_nc_get(struct drm_i915_private *i915)
101{
102	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_NC));
103}
104
105u32 vlv_nc_read(struct drm_i915_private *i915, u8 addr);
106
107static inline void vlv_nc_put(struct drm_i915_private *i915)
108{
109	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_NC));
110}
111
112static inline void vlv_punit_get(struct drm_i915_private *i915)
113{
114	vlv_iosf_sb_get(i915, BIT(VLV_IOSF_SB_PUNIT));
115}
116
117u32 vlv_punit_read(struct drm_i915_private *i915, u32 addr);
118int vlv_punit_write(struct drm_i915_private *i915, u32 addr, u32 val);
119
120static inline void vlv_punit_put(struct drm_i915_private *i915)
121{
122	vlv_iosf_sb_put(i915, BIT(VLV_IOSF_SB_PUNIT));
123}
124
125u32 intel_sbi_read(struct drm_i915_private *i915, u16 reg,
126		   enum intel_sbi_destination destination);
127void intel_sbi_write(struct drm_i915_private *i915, u16 reg, u32 value,
128		     enum intel_sbi_destination destination);
129
130int sandybridge_pcode_read(struct drm_i915_private *i915, u32 mbox,
131			   u32 *val, u32 *val1);
132int sandybridge_pcode_write_timeout(struct drm_i915_private *i915, u32 mbox,
133				    u32 val, int fast_timeout_us,
134				    int slow_timeout_ms);
135#define sandybridge_pcode_write(i915, mbox, val)	\
136	sandybridge_pcode_write_timeout(i915, mbox, val, 500, 0)
137
138int skl_pcode_request(struct drm_i915_private *i915, u32 mbox, u32 request,
139		      u32 reply_mask, u32 reply, int timeout_base_ms);
140
141#endif /* _INTEL_SIDEBAND_H */