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      1 /*	$NetBSD: pad.h,v 1.3 2021/12/18 23:45:40 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 #ifndef __NVKM_I2C_PAD_H__
      5 #define __NVKM_I2C_PAD_H__
      6 #include <subdev/i2c.h>
      7 
      8 struct nvkm_i2c_pad {
      9 	const struct nvkm_i2c_pad_func *func;
     10 	struct nvkm_i2c *i2c;
     11 #define NVKM_I2C_PAD_HYBRID(n) /* 'n' is hw pad index */                     (n)
     12 #define NVKM_I2C_PAD_CCB(n) /* 'n' is ccb index */                 ((n) + 0x100)
     13 #define NVKM_I2C_PAD_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x200)
     14 	int id;
     15 
     16 	enum nvkm_i2c_pad_mode {
     17 		NVKM_I2C_PAD_OFF,
     18 		NVKM_I2C_PAD_I2C,
     19 		NVKM_I2C_PAD_AUX,
     20 	} mode;
     21 	struct mutex mutex;
     22 	struct list_head head;
     23 };
     24 
     25 struct nvkm_i2c_pad_func {
     26 	int (*bus_new_0)(struct nvkm_i2c_pad *, int id, u8 drive, u8 sense,
     27 			 struct nvkm_i2c_bus **);
     28 	int (*bus_new_4)(struct nvkm_i2c_pad *, int id, u8 drive,
     29 			 struct nvkm_i2c_bus **);
     30 
     31 	int (*aux_new_6)(struct nvkm_i2c_pad *, int id, u8 drive,
     32 			 struct nvkm_i2c_aux **);
     33 
     34 	void (*mode)(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
     35 };
     36 
     37 void nvkm_i2c_pad_ctor(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
     38 		       int id, struct nvkm_i2c_pad *);
     39 int nvkm_i2c_pad_new_(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
     40 		      int id, struct nvkm_i2c_pad **);
     41 void nvkm_i2c_pad_del(struct nvkm_i2c_pad **);
     42 void nvkm_i2c_pad_init(struct nvkm_i2c_pad *);
     43 void nvkm_i2c_pad_fini(struct nvkm_i2c_pad *);
     44 void nvkm_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
     45 int nvkm_i2c_pad_acquire(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
     46 void nvkm_i2c_pad_release(struct nvkm_i2c_pad *);
     47 
     48 void g94_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
     49 
     50 int nv04_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     51 int nv4e_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     52 int nv50_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     53 int g94_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     54 int gf119_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     55 int gm200_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     56 
     57 int g94_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     58 int gf119_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     59 int gm200_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
     60 
     61 int anx9805_pad_new(struct nvkm_i2c_bus *, int, u8, struct nvkm_i2c_pad **);
     62 
     63 #define PAD_MSG(p,l,f,a...) do {                                               \
     64 	struct nvkm_i2c_pad *_pad = (p);                                       \
     65 	nvkm_##l(&_pad->i2c->subdev, "pad %04x: "f"\n", _pad->id, ##a);        \
     66 } while(0)
     67 #define PAD_ERR(p,f,a...) PAD_MSG((p), error, f, ##a)
     68 #define PAD_DBG(p,f,a...) PAD_MSG((p), debug, f, ##a)
     69 #define PAD_TRACE(p,f,a...) PAD_MSG((p), trace, f, ##a)
     70 #endif
     71