xref: /linux/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h (revision a4eb44a6435d6d8f9e642407a4a06f65eb90ca04)
1 /* SPDX-License-Identifier: MIT */
2 #ifndef __NVKM_I2C_PAD_H__
3 #define __NVKM_I2C_PAD_H__
4 #include "priv.h"
5 
6 struct nvkm_i2c_pad {
7 	const struct nvkm_i2c_pad_func *func;
8 	struct nvkm_i2c *i2c;
9 #define NVKM_I2C_PAD_HYBRID(n) /* 'n' is hw pad index */                     (n)
10 #define NVKM_I2C_PAD_CCB(n) /* 'n' is ccb index */                 ((n) + 0x100)
11 #define NVKM_I2C_PAD_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x200)
12 	int id;
13 
14 	enum nvkm_i2c_pad_mode {
15 		NVKM_I2C_PAD_OFF,
16 		NVKM_I2C_PAD_I2C,
17 		NVKM_I2C_PAD_AUX,
18 	} mode;
19 	struct mutex mutex;
20 	struct list_head head;
21 };
22 
23 struct nvkm_i2c_pad_func {
24 	int (*bus_new_0)(struct nvkm_i2c_pad *, int id, u8 drive, u8 sense,
25 			 struct nvkm_i2c_bus **);
26 	int (*bus_new_4)(struct nvkm_i2c_pad *, int id, u8 drive,
27 			 struct nvkm_i2c_bus **);
28 
29 	int (*aux_new_6)(struct nvkm_i2c_pad *, int id, u8 drive,
30 			 struct nvkm_i2c_aux **);
31 
32 	void (*mode)(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
33 };
34 
35 void nvkm_i2c_pad_ctor(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
36 		       int id, struct nvkm_i2c_pad *);
37 int nvkm_i2c_pad_new_(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
38 		      int id, struct nvkm_i2c_pad **);
39 void nvkm_i2c_pad_del(struct nvkm_i2c_pad **);
40 void nvkm_i2c_pad_init(struct nvkm_i2c_pad *);
41 void nvkm_i2c_pad_fini(struct nvkm_i2c_pad *);
42 void nvkm_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
43 int nvkm_i2c_pad_acquire(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
44 void nvkm_i2c_pad_release(struct nvkm_i2c_pad *);
45 
46 void g94_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
47 
48 int nv04_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
49 int nv4e_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
50 int nv50_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
51 int g94_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
52 int gf119_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
53 int gm200_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
54 
55 int g94_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
56 int gf119_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
57 int gm200_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
58 
59 int anx9805_pad_new(struct nvkm_i2c_bus *, int, u8, struct nvkm_i2c_pad **);
60 
61 #define PAD_MSG(p,l,f,a...) do {                                               \
62 	struct nvkm_i2c_pad *_pad = (p);                                       \
63 	nvkm_##l(&_pad->i2c->subdev, "pad %04x: "f"\n", _pad->id, ##a);        \
64 } while(0)
65 #define PAD_ERR(p,f,a...) PAD_MSG((p), error, f, ##a)
66 #define PAD_DBG(p,f,a...) PAD_MSG((p), debug, f, ##a)
67 #define PAD_TRACE(p,f,a...) PAD_MSG((p), trace, f, ##a)
68 #endif
69