303
edits
Changes
DVDLowReadDiskBca and DVDLowSerMeasControl are DMA commands (I wrote the length requirements, but not the actual writing of the length). Also misc typos
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=== <s>0x92 DVDLowGetNoDiscBufferSizes</s> ===
=== <s>0x92 DVDLowGetNoDiscBufferSizes</s> ===
−<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended). System menu 4.3U (among other titles) still has a PPC-side implementation (815502b8) but this is not used{{check}}. but this is not used (the higher-level function that calls it is gone due to not being referenced). This does allow determination of the inputs, though:
+<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended). System menu 4.3U (among other titles) still has a PPC-side implementation (815502b8) but this is not used (the higher-level function that calls it is gone due to not being referenced). This does allow determination of the inputs, though:
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DICMDBUF0 = 0xDA000000
DICMDBUF0 = 0xDA000000
− DICR = TSTART
+ DILENGTH = 0x40
+ DIMAR = dest
+ DICR = TSTART | DMA
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=== 0xDF DVDLowSerMeasControl ===
=== 0xDF DVDLowSerMeasControl ===
−Unknown{{check}}.
+Unknown{{check}}. Possibly "sensor measurement control" or "servo measurement control".
The output buffer size must be ≥ 0x20, or DIMAR and DILENGTH will not be written. The output buffer also needs to be 32-byte aligned, or else the driver will hang.
The output buffer size must be ≥ 0x20, or DIMAR and DILENGTH will not be written. The output buffer also needs to be 32-byte aligned, or else the driver will hang.
DICMDBUF0 = 0xDF000000 | ((flag1 & 1) << 17) | ((flag2 & 1) << 16) // DF030000, DF010000, DF020000, DF000000
DICMDBUF0 = 0xDF000000 | ((flag1 & 1) << 17) | ((flag2 & 1) << 16) // DF030000, DF010000, DF020000, DF000000
− DICR = TSTART
+ DILENGTH = 0x20
+ DIMAR = dest
+ DICR = TSTART | DMA
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{| class="wikitable"