DSP:ReadPipeIfPossible - Revision history

Merry at 21:39, 7 March 2016

2016-03-07T20:39:49Z

← Older revision		Revision as of 23:39, 7 March 2016
Line 46:		Line 46:
	\| u16, Actual read size		\| u16, Actual read size
	\|}		\|}

			= Channels =

			== Channel 2 (Audio) ==

			Channel 2 returns the DSP DRAM addresses of structures located in the [[DSP Memory Region]]. [[DSP:ConvertProcessAddressFromDspDram]] can be used to convert these addresses into virtual memory addresses. The list of addresses and the length of the list vary depending on DSP firmware version.

			== Channel 3 (Binary) ==

			The purpose of channel 3 is unknown. The behaviour of this pipe varies depending on DSP firmware version. Observed behaviours include:

			* doing nothing.
			* echoing what is returned to it.
			* long strings of zeros.

Steveice10: Clean up.

2015-10-09T03:44:58Z

Clean up.

← Older revision		Revision as of 07:44, 9 October 2015
Line 9:		Line 9:
	\|-		\|-
	\| 1		\| 1
	\| ~~chan~~ (0 - 7 0:Debug from DSP 1:P-DMA 2:audio 3:binary 4-7: free ?)		\| Channel (0 - 7 0:Debug from DSP 1:P-DMA 2:audio 3:binary 4-7: free ?)
	\|-		\|-
	\| 2		\| 2
	\| ~~direction?~~ (0 = from DSP 1 = from ARM ~~???~~ )		\| Peer (0 = from DSP, 1 = from ARM)
	\|-		\|-
	\| 3		\| 3
	\| ~~?size? (halfword)~~		\| u16, Size
	\|}		\|}

Line 25:		Line 25:
	\|-		\|-
	\| 0		\| 0
	\| (~~size~~ <<14) <nowiki>\|</nowiki> 0x2		\| (Size << 14) <nowiki>\|</nowiki> 0x2
	\|-		\|-
	\| 1		\| 1
	\| ~~buffer~~		\| Buffer
	\|}		\|}

Line 41:		Line 41:
	\|-		\|-
	\| 1		\| 1
	\| ~~Resultcode~~		\| Result code
	\|-		\|-
	\| 2		\| 2
	\| ~~sizeread? (hword)~~		\| u16, Actual read size
	\|}		\|}

Ichfly at 20:55, 11 January 2015

2015-01-11T19:55:16Z

← Older revision		Revision as of 22:55, 11 January 2015
Line 9:		Line 9:
	\|-		\|-
	\| 1		\| 1
	\| ~~unk1~~		\| chan (0 - 7 0:Debug from DSP 1:P-DMA 2:audio 3:binary 4-7: free ?)
	\|-		\|-
	\| 2		\| 2
	\| ~~unk2~~		\| direction? (0 = from DSP 1 = from ARM ??? )
	\|-		\|-
	\| 3		\| 3

Ichfly at 14:55, 22 May 2014

2014-05-22T12:55:12Z

← Older revision		Revision as of 16:55, 22 May 2014
Line 15:		Line 15:
	\|-		\|-
	\| 3		\| 3
	\| size (halfword)		\| ?size? (halfword)
	\|}		\|}

Ichfly: Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x001000c0] |- | 1 | unk1 |- | 2 | unk2 |- | 3 | size (halfword) |} 0x100 byte af..."

2014-05-22T12:39:12Z

Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x001000c0] |- | 1 | unk1 |- | 2 | unk2 |- | 3 | size (halfword) |} 0x100 byte af..."

New page

=Request=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code [0x001000c0]
|-
| 1
| unk1
|-
| 2
| unk2
|-
| 3
| size (halfword)
|}

0x100 byte after the Request header
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| (size <<14) <nowiki>|</nowiki> 0x2
|-
| 1
| buffer
|}

=Response=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code
|-
| 1
| Resultcode
|-
| 2
| sizeread? (hword)
|}