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dptx: Added macro header comments describing new functionality.

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Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion 2014-11-08 13:57:56 -08:00 • committed by Suneel Garapati
parent 87692a423d
commit 245566a2c4
2 changed files with 129 additions and 30 deletions
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6
XilinxProcessorIPLib/drivers/dptx/src/xdptx_edid.c
View file

@ -245,7 +245,7 @@ u32 XDptx_GetRemoteEdidDispIdExt(XDptx *InstancePtr, u8 *Data,
return Status;
}
NumExt = XDptx_GetExtBlockCount(Data);
NumExt = Data[XDPTX_EDID_EXT_BLOCK_COUNT];
for (ExtIndex = 0; ExtIndex < NumExt; ExtIndex++) {
/* Get an EDID extension block. */
Status = XDptx_GetRemoteEdidBlock(InstancePtr, Data,
@ -289,7 +289,7 @@ u32 XDptx_GetRemoteEdidDispIdExt(XDptx *InstancePtr, u8 *Data,
u32 XDptx_GetDispIdDataBlock(u8 *DisplayIdRaw, u8 SectionTag, u8 **DataBlockPtr)
{
u8 Index;
u8 DispIdSize = XDptx_GetDispIdSize(DisplayIdRaw);
u8 DispIdSize = DisplayIdRaw[XDPTX_DISPID_SIZE];
u8 *DataBlock;
/* Search for a section data block matching the specified tag. */
@ -297,7 +297,7 @@ u32 XDptx_GetDispIdDataBlock(u8 *DisplayIdRaw, u8 SectionTag, u8 **DataBlockPtr)
DataBlock = &DisplayIdRaw[Index];
/* Check if the tag mataches the current section data block. */
if (XDptx_GetDispIdDbSecTag(DataBlock) == SectionTag) {
if (DataBlock[XDPTX_DISPID_DB_SEC_TAG] == SectionTag) {
*DataBlockPtr = DataBlock;
return XST_SUCCESS;
}

153
XilinxProcessorIPLib/drivers/dptx/src/xdptx_hw.h
View file

@ -1292,41 +1292,140 @@
#define XDptx_WriteReg(BaseAddress, RegOffset, Data) \
XDptx_Out32((BaseAddress) + (RegOffset), (Data))
#define XDptx_GetExtBlockCount(E) (E[XDPTX_EDID_EXT_BLOCK_COUNT])
#define XDptx_IsEdidExtBlockDispId(B) \
(B[XDPTX_EDID_EXT_BLOCK_TAG] == XDPTX_EDID_EXT_BLOCK_TAG_DISPID)
/******************************************************************************/
/**
* Check if an Extended Display Identification Data (EDID) extension block is of
* type DisplayID.
*
* @param Ext is a pointer to the EDID extension block under comparison.
*
* @return
* - 1 if the extension block is of type DisplayID.
* - Otherwise.
*
* @note C-style signature:
* u8 XDptx_IsEdidExtBlockDispId(u8 *Ext)
*
*******************************************************************************/
#define XDptx_IsEdidExtBlockDispId(Ext) \
(Ext[XDPTX_EDID_EXT_BLOCK_TAG] == XDPTX_EDID_EXT_BLOCK_TAG_DISPID)
#define XDptx_GetDispIdSize(D) (D[XDPTX_DISPID_SIZE])
#define XDptx_GetDispIdDbSecTag(B) (B[XDPTX_DISPID_DB_SEC_TAG])
#define XDptx_GetDispIdTdtHTotal(B) \
(((((B[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_HTOT_H_MASK) >> \
XDPTX_DISPID_TDT_TOP2_HTOT_H_SHIFT) << 4) | \
((B[XDPTX_DISPID_TDT_TOP0] & XDPTX_DISPID_TDT_TOP0_HTOT_L_MASK) >> \
/******************************************************************************/
/**
* Given a Tiled Display Topology (TDT) data block, retrieve the total number of
* horizontal tiles in the tiled display. The TDT block is part of an Extended
* Display Identification Data (EDID) extension block of type DisplayID.
*
* @param Tdt is a pointer to the TDT data block.
*
* @return The total number of horizontal tiles in the tiled display.
*
* @note C-style signature:
* u8 XDptx_GetDispIdTdtHTotal(u8 *Tdt)
*
*******************************************************************************/
#define XDptx_GetDispIdTdtHTotal(Tdt) \
(((((Tdt[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_HTOT_H_MASK) \
>> XDPTX_DISPID_TDT_TOP2_HTOT_H_SHIFT) << 4) | \
((Tdt[XDPTX_DISPID_TDT_TOP0] & XDPTX_DISPID_TDT_TOP0_HTOT_L_MASK) >> \
XDPTX_DISPID_TDT_TOP0_HTOT_L_SHIFT)) + 1)
#define XDptx_GetDispIdTdtVTotal(B) \
(((((B[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_VTOT_H_MASK) >> \
XDPTX_DISPID_TDT_TOP2_VTOT_H_SHIFT) << 4) | \
(B[XDPTX_DISPID_TDT_TOP0] & XDPTX_DISPID_TDT_TOP0_VTOT_L_MASK)) + 1)
/******************************************************************************/
/**
* Given a Tiled Display Topology (TDT) data block, retrieve the total number of
* vertical tiles in the tiled display. The TDT block is part of an Extended
* Display Identification Data (EDID) extension block of type DisplayID.
*
* @param Tdt is a pointer to the TDT data block.
*
* @return The total number of vertical tiles in the tiled display.
*
* @note C-style signature:
* u8 XDptx_GetDispIdTdtVTotal(u8 *Tdt)
*
*******************************************************************************/
#define XDptx_GetDispIdTdtVTotal(Tdt) \
(((((Tdt[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_VTOT_H_MASK) \
>> XDPTX_DISPID_TDT_TOP2_VTOT_H_SHIFT) << 4) | \
(Tdt[XDPTX_DISPID_TDT_TOP0] & XDPTX_DISPID_TDT_TOP0_VTOT_L_MASK)) + 1)
#define XDptx_GetDispIdTdtHLoc(B) \
((((B[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_HLOC_H_MASK) >> \
XDPTX_DISPID_TDT_TOP2_HLOC_H_SHIFT) << 4) | \
((B[XDPTX_DISPID_TDT_TOP1] & XDPTX_DISPID_TDT_TOP1_HLOC_L_MASK) >> \
/******************************************************************************/
/**
* Given a Tiled Display Topology (TDT) data block, retrieve the horizontal tile
* location in the tiled display. The TDT block is part of an Extended Display
* Identification Data (EDID) extension block of type DisplayID.
*
* @param Tdt is a pointer to the TDT data block.
*
* @return The horizontal tile location in the tiled display represented by
* the specified TDT.
*
* @note C-style signature:
* u8 XDptx_GetDispIdTdtHLoc(u8 *Tdt)
*
*******************************************************************************/
#define XDptx_GetDispIdTdtHLoc(Tdt) \
((((Tdt[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_HLOC_H_MASK) \
>> XDPTX_DISPID_TDT_TOP2_HLOC_H_SHIFT) << 4) | \
((Tdt[XDPTX_DISPID_TDT_TOP1] & XDPTX_DISPID_TDT_TOP1_HLOC_L_MASK) >> \
XDPTX_DISPID_TDT_TOP1_HLOC_L_SHIFT))
#define XDptx_GetDispIdTdtVLoc(B) \
(((B[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_VLOC_H_MASK) << 4) \
| (B[XDPTX_DISPID_TDT_TOP1] & XDPTX_DISPID_TDT_TOP1_VLOC_L_MASK))
/******************************************************************************/
/**
* Given a Tiled Display Topology (TDT) data block, retrieve the vertical tile
* location in the tiled display. The TDT block is part of an Extended Display
* Identification Data (EDID) extension block of type DisplayID.
*
* @param Tdt is a pointer to the TDT data block.
*
* @return The vertical tile location in the tiled display represented by
* the specified TDT.
*
* @note C-style signature:
* u8 XDptx_GetDispIdTdtVLoc(u8 *Tdt)
*
*******************************************************************************/
#define XDptx_GetDispIdTdtVLoc(Tdt) \
(((Tdt[XDPTX_DISPID_TDT_TOP2] & XDPTX_DISPID_TDT_TOP2_VLOC_H_MASK) << \
4) | (Tdt[XDPTX_DISPID_TDT_TOP1] & XDPTX_DISPID_TDT_TOP1_VLOC_L_MASK))
#define XDptx_GetDispIdTdtNumTiles(B) \
(XDptx_GetDispIdTdtHTotal(B) * XDptx_GetDispIdTdtVTotal(B))
/******************************************************************************/
/**
* Given a Tiled Display Topology (TDT) data block, retrieve the total number of
* tiles in the tiled display. The TDT block is part of an Extended Display
* Identification Data (EDID) extension block of type DisplayID.
*
* @param Tdt is a pointer to the TDT data block.
*
* @return The total number of tiles in the tiled display.
*
* @note C-style signature:
* u8 XDptx_GetDispIdTdtNumTiles(u8 *Tdt)
*
*******************************************************************************/
#define XDptx_GetDispIdTdtNumTiles(Tdt) \
(XDptx_GetDispIdTdtHTotal(Tdt) * XDptx_GetDispIdTdtVTotal(Tdt))
#define XDptx_GetDispIdTdtTileOrder(B) \
((XDptx_GetDispIdTdtVLoc(B) * XDptx_GetDispIdTdtHTotal(B)) + \
XDptx_GetDispIdTdtHLoc(B))
/******************************************************************************/
/**
* Given a Tiled Display Topology (TDT) data block, calculate the tiling order
* of the associated tile. The TDT block is part of an Extended Display
* Identification Data (EDID) extension block of type DisplayID.
* The tiling order starts at 0 for x,y coordinate 0,0 and increments as the
* horizontal location increases. Once the last horizontal tile has been
* reached, the next tile in the order is 0,y+1.
*
* @param Tdt is a pointer to the TDT data block.
*
* @return The total number of horizontal tiles in the tiled display.
*
* @note C-style signature:
* u8 XDptx_GetDispIdTdtTileOrder(u8 *Tdt)
*
*******************************************************************************/
#define XDptx_GetDispIdTdtTileOrder(Tdt) \
((XDptx_GetDispIdTdtVLoc(Tdt) * XDptx_GetDispIdTdtHTotal(Tdt)) + \
XDptx_GetDispIdTdtHLoc(Tdt))
#endif /* XDPTX_HW_H_ */