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
141void intel_pcode_init(struct drm_i915_private *i915);
142
143#endif /* _INTEL_SIDEBAND_H */
144