diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h | 73 |
1 files changed, 72 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h index 7000dcf..d682fb6 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h @@ -1,14 +1,56 @@ #ifndef __NVBIOS_DCB_H__ #define __NVBIOS_DCB_H__ +struct nouveau_bios; + enum dcb_output_type { DCB_OUTPUT_ANALOG = 0x0, DCB_OUTPUT_TV = 0x1, DCB_OUTPUT_TMDS = 0x2, DCB_OUTPUT_LVDS = 0x3, - DCB_OUTPUT_DP = 0x4, + DCB_OUTPUT_DP = 0x6, DCB_OUTPUT_EOL = 0xe, DCB_OUTPUT_UNUSED = 0xf, + DCB_OUTPUT_ANY = -1, +}; + +struct dcb_output { + int index; /* may not be raw dcb index if merging has happened */ + enum dcb_output_type type; + uint8_t i2c_index; + uint8_t heads; + uint8_t connector; + uint8_t bus; + uint8_t location; + uint8_t or; + bool duallink_possible; + union { + struct sor_conf { + int link; + } sorconf; + struct { + int maxfreq; + } crtconf; + struct { + struct sor_conf sor; + bool use_straps_for_mode; + bool use_acpi_for_edid; + bool use_power_scripts; + } lvdsconf; + struct { + bool has_component_output; + } tvconf; + struct { + struct sor_conf sor; + int link_nr; + int link_bw; + } dpconf; + struct { + struct sor_conf sor; + int slave_addr; + } tmdsconf; + }; + bool i2c_upper_default; }; u16 dcb_table(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *ent, u8 *len); @@ -16,4 +58,33 @@ u16 dcb_outp(struct nouveau_bios *, u8 idx, u8 *ver, u8 *len); int dcb_outp_foreach(struct nouveau_bios *, void *data, int (*exec) (struct nouveau_bios *, void *, int index, u16 entry)); + +/* BIT 'U'/'d' table encoder subtables have hashes matching them to + * a particular set of encoders. + * + * This function returns true if a particular DCB entry matches. + */ +static inline bool +dcb_hash_match(struct dcb_output *dcb, u32 hash) +{ + if ((hash & 0x000000f0) != (dcb->location << 4)) + return false; + if ((hash & 0x0000000f) != dcb->type) + return false; + if (!(hash & (dcb->or << 16))) + return false; + + switch (dcb->type) { + case DCB_OUTPUT_TMDS: + case DCB_OUTPUT_LVDS: + case DCB_OUTPUT_DP: + if (hash & 0x00c00000) { + if (!(hash & (dcb->sorconf.link << 22))) + return false; + } + default: + return true; + } +} + #endif |