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| author | Girish Pathak <girish.pathak at arm.com> | 2017-09-26 21:15:22 +0100 |
|---|---|---|
| committer | Leif Lindholm <leif.lindholm@linaro.org> | 2018-04-23 12:00:57 +0100 |
| commit | 262c88461b6bf6fab2b13cef9421fbd777357ac3 (patch) | |
| tree | 7a2984576a6fa09f6bd967ceb5913956681c5c3d /ArmPlatformPkg/Include/Library | |
| parent | c18ef81e79c2beccc5738e564fb56f1b78d2d5fc (diff) | |
| download | edk2-262c88461b6bf6fab2b13cef9421fbd777357ac3.tar.gz edk2-262c88461b6bf6fab2b13cef9421fbd777357ac3.tar.bz2 edk2-262c88461b6bf6fab2b13cef9421fbd777357ac3.zip | |
ArmPlatformPkg: Redefine LcdPlatformGetTimings function
The LcdPlatformGetTimings interface function takes similar sets of
multiple parameters for horizontal and vertical timings which can be
aggregated in a common data type. This change defines a structure
SCAN_TIMINGS for this which can be used to describe both horizontal and
vertical scan timings, and accordingly redefines the
LcdPlatformGetTiming interface, greatly reducing the amount of data
passed about.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'ArmPlatformPkg/Include/Library')
| -rw-r--r-- | ArmPlatformPkg/Include/Library/LcdPlatformLib.h | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/ArmPlatformPkg/Include/Library/LcdPlatformLib.h b/ArmPlatformPkg/Include/Library/LcdPlatformLib.h index e51e78640a..8338b327fd 100644 --- a/ArmPlatformPkg/Include/Library/LcdPlatformLib.h +++ b/ArmPlatformPkg/Include/Library/LcdPlatformLib.h @@ -153,6 +153,14 @@ typedef enum { LCD_BITS_PER_PIXEL_12_444
} LCD_BPP;
+// Display timing settings.
+typedef struct {
+ UINT32 Resolution;
+ UINT32 Sync;
+ UINT32 BackPorch;
+ UINT32 FrontPorch;
+} SCAN_TIMINGS;
+
/** Platform related initialization function.
@param[in] Handle Handle to the LCD device instance.
@@ -228,14 +236,11 @@ LcdPlatformQueryMode ( @param[in] ModeNumber Mode Number.
- @param[out] HRes Pointer to horizontal resolution.
- @param[out] HSync Pointer to horizontal sync width.
- @param[out] HBackPorch Pointer to horizontal back porch.
- @param[out] HFrontPorch Pointer to horizontal front porch.
- @param[out] VRes Pointer to vertical resolution.
- @param[out] VSync Pointer to vertical sync width.
- @param[out] VBackPorch Pointer to vertical back porch.
- @param[out] VFrontPorch Pointer to vertical front porch.
+ @param[out] Horizontal Pointer to horizontal timing parameters.
+ (Resolution, Sync, Back porch, Front porch)
+ @param[out] Vertical Pointer to vertical timing parameters.
+ (Resolution, Sync, Back porch, Front porch)
+
@retval EFI_SUCCESS Display timing information for the requested
mode returned successfully.
@@ -244,14 +249,8 @@ LcdPlatformQueryMode ( EFI_STATUS
LcdPlatformGetTimings (
IN UINT32 ModeNumber,
- OUT UINT32* HRes,
- OUT UINT32* HSync,
- OUT UINT32* HBackPorch,
- OUT UINT32* HFrontPorch,
- OUT UINT32* VRes,
- OUT UINT32* VSync,
- OUT UINT32* VBackPorch,
- OUT UINT32* VFrontPorch
+ OUT SCAN_TIMINGS **Horizontal,
+ OUT SCAN_TIMINGS **Vertical
);
/** Return bits per pixel information for a mode number.
|