i2c.h 619 B

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