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/* Functions callable via VDD's API entry point, usually called by display
* drivers.
*/
#define MINIVDD_SVC_BASE_OFFSET 0x80
#define VDD_DRIVER_REGISTER (0 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_DRIVER_UNREGISTER (1 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_SAVE_DRIVER_STATE (2 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_REGISTER_DISPLAY_DRIVER_INFO (3 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_REGISTER_SSB_FLAGS (4 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_GET_DISPLAY_CONFIG (5 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_PRE_MODE_CHANGE (6 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_POST_MODE_CHANGE (7 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_SET_USER_FLAGS (8 + MINIVDD_SVC_BASE_OFFSET)
#define VDD_SET_BUSY_FLAG_ADDR (9 + MINIVDD_SVC_BASE_OFFSET)
/* The DISPLAYINFO structure for querying Registry information. */
typedef struct {
WORD diHdrSize;
WORD diInfoFlags;
DWORD diDevNodeHandle;
char diDriverName[16];
WORD diXRes;
WORD diYRes;
WORD diDPI;
BYTE diPlanes;
BYTE diBpp;
WORD diRefreshRateMax;
WORD diRefreshRateMin;
WORD diLowHorz;
WORD diHighHorz;
WORD diLowVert;
WORD diHighVert;
DWORD diMonitorDevNodeHandle;
BYTE diHorzSyncPolarity;
BYTE diVertSyncPolarity;
} DISPLAYINFO;
/* diInfoFlags */
#define RETURNED_DATA_IS_STALE 0x001 /* VDD couldn't read Registry, data could be old. */
#define MINIVDD_FAILED_TO_LOAD 0x002 /* MiniVDD did not load, probably bad config. */
#define MINIVDD_CHIP_ID_DIDNT_MATCH 0x004 /* ChipID mismatch, probably bad config. */
#define REGISTRY_BPP_NOT_VALID 0x008 /* BPP could not be read from Registry. */
#define REGISTRY_RESOLUTION_NOT_VALID 0x010 /* Resolution could not be read from Registry. */
#define REGISTRY_DPI_NOT_VALID 0x020 /* DPI could not be read from Registry. */
#define MONITOR_DEVNODE_NOT_ACTIVE 0x040 /* Devnode not there, no refresh rate data. */
#define MONITOR_INFO_NOT_VALID 0x080 /* Refresh rate data could not be read. */
#define MONITOR_INFO_DISABLED_BY_USER 0x100 /* Refresh rate data not valid. */
#define REFRESH_RATE_MAX_ONLY 0x200 /* Only diRefreshRateMax is valid. */
#define CARD_VDD_LOADED_OK 0x400 /* Second MiniVDD loaded fine. */
/* Funcrions callable in a mini-VDD. */
#define REGISTER_DISPLAY_DRIVER 0
#define GET_VDD_BANK 1
#define SET_VDD_BANK 2
#define RESET_BANK 3
#define PRE_HIRES_TO_VGA 4
#define POST_HIRES_TO_VGA 5
#define PRE_VGA_TO_HIRES 6
#define POST_VGA_TO_HIRES 7
#define SAVE_REGISTERS 8
#define RESTORE_REGISTERS 9
#define MODIFY_REGISTER_STATE 10
#define ACCESS_VGA_MEMORY_MODE 11
#define ACCESS_LINEAR_MEMORY_MODE 12
#define ENABLE_TRAPS 13
#define DISABLE_TRAPS 14
#define MAKE_HARDWARE_NOT_BUSY 15
#define VIRTUALIZE_CRTC_IN 16
#define VIRTUALIZE_CRTC_OUT 17
#define VIRTUALIZE_SEQUENCER_IN 18
#define VIRTUALIZE_SEQUENCER_OUT 19
#define VIRTUALIZE_GCR_IN 20
#define VIRTUALIZE_GCR_OUT 21
#define SET_LATCH_BANK 22
#define RESET_LATCH_BANK 23
#define SAVE_LATCHES 24
#define RESTORE_LATCHES 25
#define DISPLAY_DRIVER_DISABLING 26
#define SELECT_PLANE 27
#define PRE_CRTC_MODE_CHANGE 28
#define POST_CRTC_MODE_CHANGE 29
#define VIRTUALIZE_DAC_OUT 30
#define VIRTUALIZE_DAC_IN 31
#define GET_CURRENT_BANK_WRITE 32
#define GET_CURRENT_BANK_READ 33
#define SET_BANK 34
#define CHECK_HIRES_MODE 35
#define GET_TOTAL_VRAM_SIZE 36
#define GET_BANK_SIZE 37
#define SET_HIRES_MODE 38
#define PRE_HIRES_SAVE_RESTORE 39
#define POST_HIRES_SAVE_RESTORE 40
#define VESA_SUPPORT 41
#define GET_CHIP_ID 42
#define CHECK_SCREEN_SWITCH_OK 43
#define VIRTUALIZE_BLTER_IO 44
#define SAVE_MESSAGE_MODE_STATE 45
#define SAVE_FORCED_PLANAR_STATE 46
#define VESA_CALL_POST_PROCESSING 47
#define PRE_INT_10_MODE_SET 48
#define NBR_MINI_VDD_FUNCTIONS 49
/* Port sizes. */
#define BYTE_LENGTHED 1
#define WORD_LENGTHED 2
/* Flag bits. */
#define GOING_TO_WINDOWS_MODE 1
#define GOING_TO_VGA_MODE 2
#define DISPLAY_DRIVER_DISABLED 4
#define IN_WINDOWS_HIRES_MODE 8
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