diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h new file mode 100644 index 000000000000..85c529ecf9b1 --- /dev/null +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h @@ -0,0 +1,25 @@ +#ifndef __NVBIOS_I2C_H__ +#define __NVBIOS_I2C_H__ +enum dcb_i2c_type { + /* matches bios type field prior to ccb 4.1 */ + DCB_I2C_NV04_BIT = 0x00, + DCB_I2C_NV4E_BIT = 0x04, + DCB_I2C_NVIO_BIT = 0x05, + DCB_I2C_NVIO_AUX = 0x06, + /* made up - mostly */ + DCB_I2C_PMGR = 0x80, + DCB_I2C_UNUSED = 0xff +}; + +struct dcb_i2c_entry { + enum dcb_i2c_type type; + u8 drive; + u8 sense; + u8 share; + u8 auxch; +}; + +u16 dcb_i2c_table(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len); +u16 dcb_i2c_entry(struct nvkm_bios *, u8 index, u8 *ver, u8 *len); +int dcb_i2c_parse(struct nvkm_bios *, u8 index, struct dcb_i2c_entry *); +#endif |