40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
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/* SPDX-License-Identifier: MIT */
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#ifndef __NVKM_I2C_BUS_H__
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#define __NVKM_I2C_BUS_H__
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#include "pad.h"
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struct nvkm_i2c_bus_func {
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void (*init)(struct nvkm_i2c_bus *);
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void (*drive_scl)(struct nvkm_i2c_bus *, int state);
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void (*drive_sda)(struct nvkm_i2c_bus *, int state);
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int (*sense_scl)(struct nvkm_i2c_bus *);
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int (*sense_sda)(struct nvkm_i2c_bus *);
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int (*xfer)(struct nvkm_i2c_bus *, struct i2c_msg *, int num);
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};
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int nvkm_i2c_bus_ctor(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *,
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int id, struct nvkm_i2c_bus *);
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int nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *,
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int id, struct nvkm_i2c_bus **);
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void nvkm_i2c_bus_del(struct nvkm_i2c_bus **);
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void nvkm_i2c_bus_init(struct nvkm_i2c_bus *);
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void nvkm_i2c_bus_fini(struct nvkm_i2c_bus *);
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int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int);
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int nv04_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, u8,
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struct nvkm_i2c_bus **);
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int nv4e_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **);
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int nv50_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **);
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int gf119_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **);
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#define BUS_MSG(b,l,f,a...) do { \
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struct nvkm_i2c_bus *_bus = (b); \
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nvkm_##l(&_bus->pad->i2c->subdev, "bus %04x: "f"\n", _bus->id, ##a); \
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} while(0)
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#define BUS_ERR(b,f,a...) BUS_MSG((b), error, f, ##a)
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#define BUS_DBG(b,f,a...) BUS_MSG((b), debug, f, ##a)
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#define BUS_TRACE(b,f,a...) BUS_MSG((b), trace, f, ##a)
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#endif
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