SceCompatMailbox
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SceCompatMailbox
| Address | Size |
|---|---|
| 0xE5070000 | 0x1000 |
Registers
| Offset | Size | Comments |
|---|---|---|
| 0x00 + 4 * ID | 4 | Raise MIPS Compat interrupt ID. Write all ones. Visible at 0xBC300030 on MIPS side
|
| 0x80 + 4 * ID | 4 | Enable raising MIPS Compat interrupt ID. Write all ones
|
Interrupt raising sequence
When one wants to raise "Compat" interrupt ID to the MIPS processor, the following sequence is used:
// Write data to shared address
shared->foo = bar;
// Trigger interrupt
dsb(0xf);
*(u32 *)(0xE5070000 + ID * 4 + 0x80) = 0xffffffff;
dsb(0xf);
*(u32 *)(0xE5070000 + ID * 4) = 0xffffffff;
dsb(0xf);