1 /* SPDX-License-Identifier: MIT */ 2 #ifndef __NVBIOS_I2C_H__ 3 #define __NVBIOS_I2C_H__ 4 enum dcb_i2c_type { 5 /* matches bios type field prior to ccb 4.1 */ 6 DCB_I2C_NV04_BIT = 0x00, 7 DCB_I2C_NV4E_BIT = 0x04, 8 DCB_I2C_NVIO_BIT = 0x05, 9 DCB_I2C_NVIO_AUX = 0x06, 10 /* made up - mostly */ 11 DCB_I2C_PMGR = 0x80, 12 DCB_I2C_UNUSED = 0xff 13 }; 14 15 struct dcb_i2c_entry { 16 enum dcb_i2c_type type; 17 u8 drive; 18 u8 sense; 19 u8 share; 20 u8 auxch; 21 }; 22 23 u16 dcb_i2c_table(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len); 24 u16 dcb_i2c_entry(struct nvkm_bios *, u8 index, u8 *ver, u8 *len); 25 int dcb_i2c_parse(struct nvkm_bios *, u8 index, struct dcb_i2c_entry *); 26 #endif 27