1#ifndef __NVKM_I2C_BUS_H__ 2#define __NVKM_I2C_BUS_H__ 3#include "pad.h" 4 5struct nvkm_i2c_bus_func { 6 void (*init)(struct nvkm_i2c_bus *); 7 void (*drive_scl)(struct nvkm_i2c_bus *, int state); 8 void (*drive_sda)(struct nvkm_i2c_bus *, int state); 9 int (*sense_scl)(struct nvkm_i2c_bus *); 10 int (*sense_sda)(struct nvkm_i2c_bus *); 11 int (*xfer)(struct nvkm_i2c_bus *, struct i2c_msg *, int num); 12}; 13 14int nvkm_i2c_bus_ctor(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *, 15 int id, struct nvkm_i2c_bus *); 16int nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *, 17 int id, struct nvkm_i2c_bus **); 18void nvkm_i2c_bus_del(struct nvkm_i2c_bus **); 19void nvkm_i2c_bus_init(struct nvkm_i2c_bus *); 20 21int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int); 22 23int nv04_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, u8, 24 struct nvkm_i2c_bus **); 25 26int nv4e_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); 27int nv50_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); 28int gf119_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); 29 30#define BUS_MSG(b,l,f,a...) do { \ 31 struct nvkm_i2c_bus *_bus = (b); \ 32 nvkm_##l(&_bus->pad->i2c->subdev, "bus %04x: "f"\n", _bus->id, ##a); \ 33} while(0) 34#define BUS_ERR(b,f,a...) BUS_MSG((b), error, f, ##a) 35#define BUS_DBG(b,f,a...) BUS_MSG((b), debug, f, ##a) 36#define BUS_TRACE(b,f,a...) BUS_MSG((b), trace, f, ##a) 37#endif 38