Template:Glsdk psdk200 DSS

{{#ifeq: {{{processor}}} | AM57xx |

Running DSS application
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Running drmzalpha application

Z-order:

It determines, which overlay window appears on top of the other.

Range: 0 to 3 lowest value for bottom

highest value for top

Alpha Blend:

It determines transparency level of image as a result of both global alpha & pre multiplied alpha value.

Global alpha range: 0 to 255

0  - fully transparent

127 - semi transparent

255 - fully opaque

Pre multipled alpha value: 0 or 1

0 - source is not premultiply with alpha

1 - source is premultiply with alpha

{{#ifeq: {{{processor}}} | AM57xx | |

H/W setup

 * DRA7xx EVM + 12V supply for the EVM.
 * FPDLink Cable between DRA7xx and De-serilzer board (DS90UB928Q).
 * 5V power supply for De-serializer board.
 * LCD Adapter board (DS90UH928Q) that sits on De-serializer board.
 * LCD Adapter cable which is between LCD panel and the Adapter board.
 * 12V power supply for LCD Adapter board.
 * The actual LCD panel (LG101(10.1in) or AUO (7.1 in))
 * Please refer the picture which shows the overall setup [[Media:DRA7xx_FPDLink_setup.png | attached here]]

Kernel Configuration
-> Device Drivers -> Graphics support -> OMAP2+ Display Subsystem support (OMAP2_DSS [=y]) -> OMAP2/3 Display Device Drivers <*> LG101 LCD Panel -> Device Drivers -> Graphics support -> OMAP2+ Display Subsystem support (OMAP2_DSS [=y]) -> OMAP2/3 Display Device Drivers <*> SERLINK -> Device Drivers -> Graphics support -> OMAP2+ Display Subsystem support (OMAP2_DSS [=y]) -> OMAP2/3 Display Device Drivers <*> DSERLINK

Testing
On power-cycle, the EVM should boot and show the Tux Logo. Given below is a snippet from the modetest - it should show the FPDLink Display connected via the following path. The connector-id, crtc-id or plane-ids may change based on the release or kernel version.

Encoders: id     crtc    type    possible crtcs  possible clones 3      10      TMDS    0x00000003      0x00000000 11     14      TMDS    0x00000002      0x00000000 ---> FPDLink

Connectors: id     encoder status          type    size (mm)       modes   encoders 4      3       connected       unknown 0x0             1       3 modes: name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot) 800x480 60 800 841 890 931 480 493 497 526 flags: nhsync, nvsync; type: preferred, driver  props:        1 EDID:                flags: immutable blob                blobs:

value: 2 DPMS: flags: enum enums: On=0 Standby=1 Suspend=2 Off=3 value: 0 12     11      connected       unknown 0x0             1       11 ---> FPDLink modes: name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot) 1280x800 57 1280 1312 1360 1440 800 804 807 814 flags: nhsync, nvsync; type: preferred, driver  props:        1 EDID:                flags: immutable blob                blobs:

value: 2 DPMS: flags: enum enums: On=0 Standby=1 Suspend=2 Off=3 value: 0

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