xref: /linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h (revision 03c11eb3b16dc0058589751dfd91f254be2be613)
1 /* SPDX-License-Identifier: MIT */
2 #ifndef __NVKM_DISP_OUTP_H__
3 #define __NVKM_DISP_OUTP_H__
4 #include "priv.h"
5 
6 #include <drm/display/drm_dp.h>
7 #include <subdev/bios.h>
8 #include <subdev/bios/dcb.h>
9 #include <subdev/bios/dp.h>
10 
11 struct nvkm_outp {
12 	const struct nvkm_outp_func *func;
13 	struct nvkm_disp *disp;
14 	int index;
15 	struct dcb_output info;
16 
17 	struct nvkm_i2c_bus *i2c;
18 
19 	struct list_head head;
20 	struct nvkm_conn *conn;
21 	bool identity;
22 
23 	/* Assembly state. */
24 #define NVKM_OUTP_PRIV 1
25 #define NVKM_OUTP_USER 2
26 	u8 acquired:2;
27 	struct nvkm_ior *ior;
28 
29 	union {
30 		struct {
31 			bool dual;
32 			bool bpc8;
33 		} lvds;
34 
35 		struct {
36 			struct nvbios_dpout info;
37 			u8 version;
38 			bool mst;
39 			bool increased_wm;
40 
41 			struct nvkm_i2c_aux *aux;
42 
43 			bool enabled;
44 			bool aux_pwr;
45 			bool aux_pwr_pu;
46 			u8 lttpr[6];
47 			u8 lttprs;
48 			u8 dpcd[DP_RECEIVER_CAP_SIZE];
49 
50 			struct {
51 				int dpcd; /* -1, or index into SUPPORTED_LINK_RATES table */
52 				u32 rate;
53 			} rate[8];
54 			int rates;
55 
56 			struct mutex mutex;
57 			struct {
58 				u8 nr;
59 				u8 bw;
60 				bool mst;
61 				bool post_adj;
62 			} lt;
63 		} dp;
64 	};
65 
66 	struct nvkm_object object;
67 	struct {
68 		struct nvkm_head *head;
69 	} asy;
70 };
71 
72 int nvkm_outp_new_(const struct nvkm_outp_func *, struct nvkm_disp *, int index,
73 		   struct dcb_output *, struct nvkm_outp **);
74 int nvkm_outp_new(struct nvkm_disp *, int index, struct dcb_output *, struct nvkm_outp **);
75 void nvkm_outp_del(struct nvkm_outp **);
76 void nvkm_outp_init(struct nvkm_outp *);
77 void nvkm_outp_fini(struct nvkm_outp *);
78 
79 int nvkm_outp_detect(struct nvkm_outp *);
80 
81 struct nvkm_ior *nvkm_outp_inherit(struct nvkm_outp *);
82 int nvkm_outp_acquire(struct nvkm_outp *, bool hda);
83 int nvkm_outp_acquire_or(struct nvkm_outp *, u8 user, bool hda);
84 int nvkm_outp_acquire_ior(struct nvkm_outp *, u8 user, struct nvkm_ior *);
85 void nvkm_outp_release(struct nvkm_outp *);
86 void nvkm_outp_release_or(struct nvkm_outp *, u8 user);
87 
88 int nvkm_outp_bl_get(struct nvkm_outp *);
89 int nvkm_outp_bl_set(struct nvkm_outp *, int level);
90 
91 struct nvkm_outp_func {
92 	void *(*dtor)(struct nvkm_outp *);
93 	void (*init)(struct nvkm_outp *);
94 	void (*fini)(struct nvkm_outp *);
95 
96 	int (*detect)(struct nvkm_outp *);
97 	int (*edid_get)(struct nvkm_outp *, u8 *data, u16 *size);
98 
99 	struct nvkm_ior *(*inherit)(struct nvkm_outp *);
100 	int (*acquire)(struct nvkm_outp *, bool hda);
101 	void (*release)(struct nvkm_outp *);
102 
103 	struct {
104 		int (*get)(struct nvkm_outp *);
105 		int (*set)(struct nvkm_outp *, int level);
106 	} bl;
107 
108 	struct {
109 		int (*aux_pwr)(struct nvkm_outp *, bool pu);
110 		int (*aux_xfer)(struct nvkm_outp *, u8 type, u32 addr, u8 *data, u8 *size);
111 		int (*rates)(struct nvkm_outp *);
112 		int (*train)(struct nvkm_outp *, bool retrain);
113 		int (*drive)(struct nvkm_outp *, u8 lanes, u8 pe[4], u8 vs[4]);
114 		int (*mst_id_get)(struct nvkm_outp *, u32 *id);
115 		int (*mst_id_put)(struct nvkm_outp *, u32 id);
116 	} dp;
117 };
118 
119 #define OUTP_MSG(o,l,f,a...) do {                                              \
120 	struct nvkm_outp *_outp = (o);                                         \
121 	nvkm_##l(&_outp->disp->engine.subdev, "outp %02x:%04x:%04x: "f"\n",    \
122 		 _outp->index, _outp->info.hasht, _outp->info.hashm, ##a);     \
123 } while(0)
124 #define OUTP_ERR(o,f,a...) OUTP_MSG((o), error, f, ##a)
125 #define OUTP_DBG(o,f,a...) OUTP_MSG((o), debug, f, ##a)
126 #define OUTP_TRACE(o,f,a...) OUTP_MSG((o), trace, f, ##a)
127 #endif
128