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 <subdev/i2c.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