1*b7019ac5SIlia Mirkin /* SPDX-License-Identifier: MIT */ 22aa5eac5SBen Skeggs #ifndef __NVKM_I2C_BUS_H__ 32aa5eac5SBen Skeggs #define __NVKM_I2C_BUS_H__ 42aa5eac5SBen Skeggs #include "pad.h" 52aa5eac5SBen Skeggs 62aa5eac5SBen Skeggs struct nvkm_i2c_bus_func { 72aa5eac5SBen Skeggs void (*init)(struct nvkm_i2c_bus *); 82aa5eac5SBen Skeggs void (*drive_scl)(struct nvkm_i2c_bus *, int state); 92aa5eac5SBen Skeggs void (*drive_sda)(struct nvkm_i2c_bus *, int state); 102aa5eac5SBen Skeggs int (*sense_scl)(struct nvkm_i2c_bus *); 112aa5eac5SBen Skeggs int (*sense_sda)(struct nvkm_i2c_bus *); 122aa5eac5SBen Skeggs int (*xfer)(struct nvkm_i2c_bus *, struct i2c_msg *, int num); 132aa5eac5SBen Skeggs }; 142aa5eac5SBen Skeggs 152aa5eac5SBen Skeggs int nvkm_i2c_bus_ctor(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *, 162aa5eac5SBen Skeggs int id, struct nvkm_i2c_bus *); 172aa5eac5SBen Skeggs int nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *, 182aa5eac5SBen Skeggs int id, struct nvkm_i2c_bus **); 192aa5eac5SBen Skeggs void nvkm_i2c_bus_del(struct nvkm_i2c_bus **); 202aa5eac5SBen Skeggs void nvkm_i2c_bus_init(struct nvkm_i2c_bus *); 21342406e4SLyude Paul void nvkm_i2c_bus_fini(struct nvkm_i2c_bus *); 222aa5eac5SBen Skeggs 232aa5eac5SBen Skeggs int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int); 242aa5eac5SBen Skeggs 252aa5eac5SBen Skeggs int nv04_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, u8, 262aa5eac5SBen Skeggs struct nvkm_i2c_bus **); 272aa5eac5SBen Skeggs 282aa5eac5SBen Skeggs int nv4e_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); 292aa5eac5SBen Skeggs int nv50_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); 302aa5eac5SBen Skeggs int gf119_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); 312aa5eac5SBen Skeggs 322aa5eac5SBen Skeggs #define BUS_MSG(b,l,f,a...) do { \ 332aa5eac5SBen Skeggs struct nvkm_i2c_bus *_bus = (b); \ 342aa5eac5SBen Skeggs nvkm_##l(&_bus->pad->i2c->subdev, "bus %04x: "f"\n", _bus->id, ##a); \ 352aa5eac5SBen Skeggs } while(0) 362aa5eac5SBen Skeggs #define BUS_ERR(b,f,a...) BUS_MSG((b), error, f, ##a) 372aa5eac5SBen Skeggs #define BUS_DBG(b,f,a...) BUS_MSG((b), debug, f, ##a) 382aa5eac5SBen Skeggs #define BUS_TRACE(b,f,a...) BUS_MSG((b), trace, f, ##a) 392aa5eac5SBen Skeggs #endif 40