LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h

   1/* SPDX-License-Identifier: MIT */
   2#ifndef __NVKM_I2C_PAD_H__
   3#define __NVKM_I2C_PAD_H__
   4#include "priv.h"
   5
   6struct 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
  23struct 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
  35void nvkm_i2c_pad_ctor(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
  36                       int id, struct nvkm_i2c_pad *);
  37int nvkm_i2c_pad_new_(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
  38                      int id, struct nvkm_i2c_pad **);
  39void nvkm_i2c_pad_del(struct nvkm_i2c_pad **);
  40void nvkm_i2c_pad_init(struct nvkm_i2c_pad *);
  41void nvkm_i2c_pad_fini(struct nvkm_i2c_pad *);
  42void nvkm_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
  43int nvkm_i2c_pad_acquire(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
  44void nvkm_i2c_pad_release(struct nvkm_i2c_pad *);
  45
  46void g94_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
  47
  48int nv04_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  49int nv4e_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  50int nv50_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  51int g94_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  52int gf119_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  53int gm200_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  54
  55int g94_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  56int gf119_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  57int gm200_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
  58
  59int 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