Difference between revisions of "DSP:WriteProcessPipe"
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m (Fix binary channel) |
(Add buffer details) |
||
| Line 56: | Line 56: | ||
| 3 | | 3 | ||
|} | |} | ||
| + | |||
| + | ==Buffer== | ||
| + | When <code>Channel == AUDIO</code>, | ||
| + | |||
| + | {| class="wikitable" border="1" | ||
| + | |- | ||
| + | ! Offset | ||
| + | ! Size | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x0 | ||
| + | | 2 | ||
| + | | Unknown | ||
| + | |- | ||
| + | | 0x2 | ||
| + | | 2 | ||
| + | | Change DSP state | ||
| + | |} | ||
| + | |||
| + | When <code>Channel == BINARY</code>, | ||
| + | {| class="wikitable" border="1" | ||
| + | |- | ||
| + | ! Offset | ||
| + | ! Size | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x0 | ||
| + | | 2 | ||
| + | | Codec enum | ||
| + | |- | ||
| + | | 0x2 | ||
| + | | 2 | ||
| + | | Codec Command | ||
| + | |- | ||
| + | | 0x4 | ||
| + | | 4 | ||
| + | | Result (0 = Success; 1 = Failed) | ||
| + | |- | ||
| + | | 0x8 | ||
| + | | 24 | ||
| + | | Command Args | ||
| + | |} | ||
| + | |||
| + | ===Command Args=== | ||
Latest revision as of 17:01, 2 July 2023
Request[edit]
| Index Word | Description |
|---|---|
| 0 | Header code [0x000D0082] |
| 1 | Channel |
| 2 | Size |
| 3 | (Size << 14) | 0x402 |
| 4 | Buffer |
Response[edit]
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
Usage Notes[edit]
One should call DSP:SetSemaphore with an argument of `0x4000`, then wait on the related interrupt event.
enum Channel[edit]
| Channel | Id |
|---|---|
| DEBUG | 0 |
| DMA | 1 |
| AUDIO | 2 |
| BINARY | 3 |
Buffer[edit]
When Channel == AUDIO,
| Offset | Size | Description |
|---|---|---|
| 0x0 | 2 | Unknown |
| 0x2 | 2 | Change DSP state |
When Channel == BINARY,
| Offset | Size | Description |
|---|---|---|
| 0x0 | 2 | Codec enum |
| 0x2 | 2 | Codec Command |
| 0x4 | 4 | Result (0 = Success; 1 = Failed) |
| 0x8 | 24 | Command Args |