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Add cafe2wii boot info
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−'''cafe2wii''' is the process used to transition to [[WiiMode]].
'''cafe2wii''' is the process used to transition to [[WiiMode]].
−It lowers the [[Hardware/Espresso|Espresso]]'s clock speed, disables [[Hardware/Starbuck|Starbuck]] access to Wii U-exclusive hardware, then launches the loaded IOS.
+== Booting into Wii mode ==
+After being launched, cafe2wii will parse a boot info structure located at 0x00001000. It will copy all the boot info binaries to several memory locations.<br>
+The c2w.img from OSv1 version additionally verifies the header of the "hai params" located at 0x00402000 and copies them to 0xfffff000. <br>
+It then lowers the [[Hardware/Espresso|Espresso]]'s clock speed, disables [[Hardware/Starbuck|Starbuck]] access to Wii U-exclusive hardware, then directly jumps to the loaded IOS (?).
+=== C2WBin ===
+{| class="wikitable"
+|-
+! Start
+! Length
+! Description
+|-
+| 0x00
+| 4
+| size
+|-
+| 0x04
+| 4
+| paddr
+|}
+=== C2WBootInfo ===
+{| class="wikitable"
+|-
+! Start
+! Length
+! Description
+|-
+| 0x00
+| 4
+| iosVer (lowest 2 bytes of the title id and title version)
+|-
+| 0x04
+| 8 (C2WBin)
+| eeprom
+|-
+| 0x0C
+| 8 (C2WBin)
+| romfont
+|-
+| 0x14
+| 8 (C2WBin)
+| ios
+|-
+| 0x1C
+| 8 (C2WBin)
+| boot
+|-
+| 0x24
+| 8 (C2WBin)
+| app
+|}
== Launching cafe2wii ==
== Launching cafe2wii ==
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MCP-CMPT will load multiple binaries from OSv0/v1 into MEM1.
MCP-CMPT will load multiple binaries from OSv0/v1 into MEM1.
It then launches the c2w.img, which prepares those binaries in memory.<br>
It then launches the c2w.img, which prepares those binaries in memory.<br>
−There are 3 different launch modes for booting into vWii: "NORMAL", "SIMPLE_DOL" and "HAI". All launch modes load the OSv0/v1 c2w.img and foot.bin and read the Wii EEPROM using the "/dev/crpyto" ioctl 0x1e.
+There are 3 different launch modes for booting into vWii: "NORMAL", "SIMPLE_DOL" and "HAI". All launch modes load the OSv0/v1 c2w.img and font.bin and read the Wii EEPROM using the "/dev/crpyto" ioctl 0x1e.
=== NORMAL (0) ===
=== NORMAL (0) ===