LXR linux/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h

   1/* SPDX-License-Identifier: MIT */
   2#ifndef __NVBIOS_DCB_H__
   3#define __NVBIOS_DCB_H__
   4enum dcb_output_type {
   5        DCB_OUTPUT_ANALOG       = 0x0,
   6        DCB_OUTPUT_TV           = 0x1,
   7        DCB_OUTPUT_TMDS         = 0x2,
   8        DCB_OUTPUT_LVDS         = 0x3,
   9        DCB_OUTPUT_DP           = 0x6,
  10        DCB_OUTPUT_WFD          = 0x8,
  11        DCB_OUTPUT_EOL          = 0xe,
  12        DCB_OUTPUT_UNUSED       = 0xf,
  13        DCB_OUTPUT_ANY = -1,
  14};
  15
  16struct dcb_output {
  17        int index;      /* may not be raw dcb index if merging has happened */
  18        u16 hasht;
  19        u16 hashm;
  20        enum dcb_output_type type;
  21        uint8_t i2c_index;
  22        uint8_t heads;
  23        uint8_t connector;
  24        uint8_t bus;
  25        uint8_t location;
  26        uint8_t or;
  27        uint8_t link;
  28        bool duallink_possible;
  29        uint8_t extdev;
  30        union {
  31                struct sor_conf {
  32                        int link;
  33                } sorconf;
  34                struct {
  35                        int maxfreq;
  36                } crtconf;
  37                struct {
  38                        struct sor_conf sor;
  39                        bool use_straps_for_mode;
  40                        bool use_acpi_for_edid;
  41                        bool use_power_scripts;
  42                } lvdsconf;
  43                struct {
  44                        bool has_component_output;
  45                } tvconf;
  46                struct {
  47                        struct sor_conf sor;
  48                        int link_nr;
  49                        int link_bw;
  50                } dpconf;
  51                struct {
  52                        struct sor_conf sor;
  53                        int slave_addr;
  54                } tmdsconf;
  55        };
  56        bool i2c_upper_default;
  57};
  58
  59u16 dcb_table(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *ent, u8 *len);
  60u16 dcb_outp(struct nvkm_bios *, u8 idx, u8 *ver, u8 *len);
  61u16 dcb_outp_parse(struct nvkm_bios *, u8 idx, u8 *, u8 *,
  62                   struct dcb_output *);
  63u16 dcb_outp_match(struct nvkm_bios *, u16 type, u16 mask, u8 *, u8 *,
  64                   struct dcb_output *);
  65int dcb_outp_foreach(struct nvkm_bios *, void *data, int (*exec)
  66                     (struct nvkm_bios *, void *, int index, u16 entry));
  67#endif
  68