DSP:RegisterInterruptEvents

2015-03-25T13:26:10Z

Cell9:

=Request=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code [0x00150082]
|-
| 1
| param0
|-
| 2
| param1
|-
| 3
| 0
|-
| 4
| Event handle, 0 for unregister the event that was previous registered
|}

=Response=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code
|-
| 1
| Result code
|}

Application should unregister the event by setting handle to zero, if the session was closed before the event is unregisterd, it will cause a handle leak in dsp process.

IO Registers

2014-11-29T00:03:42Z

Cell9: I assume 0x10202000 should be linked to the LCD Registers page.

= Overview =

{| class="wikitable" border="1"
! Old3DS
! A9/A11
! Category
! Physaddr
! Used by
! Comments
|-
| style="background: green" | Yes
| A9
| [[CONFIG Registers]]
| 0x10000000
| Boot9, Process9
|
|-
| style="background: green" | Yes
| A9
| [[IRQ Registers]]
| 0x10001000
| Boot9, Process9, Kernel9
| ARM9 Interrupt Masking
|-
| style="background: green" | Yes
| A9
| [[NDMA Registers]]
| 0x10002000
| Boot9, Process9
| DMA Engine
|-
| style="background: green" | Yes
| A9
| [[TIMER Registers]]
| 0x10003000
| Boot9, Process9
|
|-
| style="background: green" | Yes
| A9
| [[CTRCARD Registers]]
| 0x10004000 / 0x10005000
| Process9
|
|-
| style="background: green" | Yes
| A9
| [[EMMC Registers]]
| 0x10006000 / 0x10007000
| Boot9, Process9
| 0x10007000 is apparently not used on retail
|-
| style="background: green" | Yes
| A9
| [[PXI Registers]]
| 0x10008000
| Boot9, Process9
|
|-
| style="background: green" | Yes
| A9
| [[AES Registers]]
| 0x10009000
| Boot9, Process9
|
|-
| style="background: green" | Yes
| A9
| [[SHA Registers]]
| 0x1000A000
| Boot9, Process9
|
|-
| style="background: green" | Yes
| A9
| [[RSA Registers]]
| 0x1000B000
| Boot9, Process9
|
|-
| style="background: green" | Yes
| A9
| [[XDMA Registers]]
| 0x1000C000
| Boot9, Kernel9
| [http://infocenter.arm.com/help/topic/com.arm.doc.ddi0424d/index.html CoreLink™ DMA-330]
|-
| style="background: green" | Yes
| A9
| [[SPICARD Registers]]
| 0x1000D800
| Process9
|
|-style="border-top: double"
| style="background: green" | Yes
|?
| [[CONFIG Registers]]
| 0x10010000
| Process9
|
|-
| style="background: green" | Yes
|?
| [[CONFIG Registers]]
| 0x10011000
| Process9
|
|-
| style="background: green" | Yes
|?
|?
| 0x10012000
| Kernel9, NewKernel9Loader
| Top secret.
|-
| style="background: green" | Yes
|?
|?
| 0x10018000
| TwlProcess9
| Used to setup the ARM7 core for AGB/TWL
|-style="border-top: double"
| style="background: green" | Yes
|?
|?
| 0x10100000
|?
|?
|-
| style="background: green" | Yes
| A11/A9
| [[HASH Registers]]
| 0x10101000
| [[Filesystem services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[Camera Registers]]
| 0x10102000
| [[Camera Services]]
| y2r
|-
| style="background: green" | Yes
| A11/A9
| [[CSND Registers]] / DSP
| 0x10103000
| TwlBg, [[Codec Services]], [[CSND Services]], [[DSP Services]]
| Sound hardware. For DSP regs, see the "DSi XpertTeak" section in [http://problemkaputt.de/gba.htm no$gba] help.
|-style="border-top: double"
| style="background: green" | Yes
| A11/A9
|?
| 0x10110000
|?
|?
|-
| style="background: green" | Yes
| A11/A9
|?
| 0x10111000
| TwlBg
|
|-style="border-top: double"
| style="background: green" | Yes
| A11/A9
| [[Camera Registers]]
| 0x10120000
| [[Camera Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[Camera Registers]]
| 0x10121000
| [[Camera Services]]
| Mirror of 0x10120000?
|-
| style="background: green" | Yes
| A11/A9
|?
| 0x10122000
| [[NWM Services]]
| WIFI?
|-
| style="background: green" | Yes
| A11/A9
|?
| 0x10123000
| [[NWM Services]]
| WIFI?
|-style="border-top: double"
| style="background: red" | No
| A11/A9
| [[MVD Registers]]
| 0x10130000
| [[MVD Services]]
|
|-
| style="background: red" | No
| A11/A9
| [[MVD Registers]]
| 0x10131000
| [[MVD Services]]
|
|-
| style="background: red" | No
| A11/A9
| [[MVD Registers]]
| 0x10132000
| [[MVD Services]]
|
|-style="border-top: double"
| style="background: green" | Yes
| A11/A9
|?
| 0x10140000
| Process9, Boot11, Kernel11, TwlBg, [[DSP Services]], [[NWM Services]], [[SPI Services]]
| Power management. Possibly "DSi New Shared WRAM" control @ offset0, see section in [http://problemkaputt.de/gba.htm no$gba] help.
|-
| style="background: green" | Yes
| A11/A9
| [[PDN Registers]] / [[CODEC Registers]]
| 0x10141000
| Process9, Boot11, Kernel11, TwlBg, [[Codec Services]], [[NWM Services]], [[SPI Services]], [[PDN Services]]
| Power management
|-
| style="background: green" | Yes
| A11/A9
| [[SPI Registers]]
| 0x10142000
| TwlBg, [[SPI Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[SPI Registers]]
| 0x10143000
| TwlBg
| Only used under TWL_FIRM?
|-
| style="background: green" | Yes
| A11/A9
| [[I2C Registers]]
| 0x10144000
| Boot11, Kernel11, TwlBg, [[I2C Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[CODEC Registers]]
| 0x10145000
| TwlBg, [[Codec Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[HID Registers]]
| 0x10146000
| Boot11, Kernel11, TwlBg, [[HID Services]]
| See [[PAD]].
|-
| style="background: green" | Yes
| A11/A9
| [[GPIO Registers]]
| 0x10147000
| Boot11, TwlBg, [[GPIO Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[I2C Registers]]
| 0x10148000
| TwlBg, [[I2C Services]]
|
|-style="border-top: double"
| style="background: green" | Yes
| A11/A9
| [[SPI Registers]]
| 0x10160000
| Boot9, TwlBg, [[SPI Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[I2C Registers]]
| 0x10161000
| Boot11, TwlBg, [[I2C Services]]
| See [http://problemkaputt.de/gba.htm no$gba] help for some clues maybe.
|-
| style="background: green" | Yes
| A11/A9
| [[MIC Registers]]
| 0x10162000
| [[MIC Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[PXI Registers]]
| 0x10163000
| Boot11, Kernel11, TwlBg, [[PXI Services]]
|
|-
| style="background: green" | Yes
| A11/A9
| [[NTRCARD Registers]]
| 0x10164000
| Boot9, Process9
|
|-
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10165000
| [[MP Services]]
|
|-style="border-top: double"
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10170000
| [[MP Services]]
| NTR WIFI Registers, see [http://problemkaputt.de/gbatek.htm#dswirelesscommunications GBATek].
|-
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10171000
| [[MP Services]]
| NTR WIFI Registers (mirror)
|-
| style="background: green" | Yes
| A11/A9
|?
| 0x10172000
|?
| NTR WIFI Unused?
|-
| style="background: green" | Yes
| A11/A9
|?
| 0x10173000
|?
| NTR WIFI Unused?
|-
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10174000
| [[MP Services]]
| NTR WIFI RAM
|-
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10175000
|?
| NTR WIFI RAM
|-
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10176000
|?
| NTR WIFI Registers (mirror)
|-
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10177000
|?
| NTR WIFI Registers (mirror)
|-
| style="background: green" | Yes
| A11/A9
| [[MP Registers]]
| 0x10178000 - 0x10180000
| [[MP Services]]
| NTR WIFI WS1 Region
|-style="border-top: double"
| style="background: orange" |?
| A11
| CDMA
| 0x10200000
| Boot11, Kernel11
| On old 3DS this is [http://infocenter.arm.com/help/topic/com.arm.doc.ddi0424d/index.html CoreLink™ DMA-330]. On the New 3DS it is unknown what this is.
|-
| style="background: green" | Yes
| A11
| [[LCD Registers]]
| 0x10202000
| TwlBg, Kernel11, [[GSP Services]]
|
|-
| style="background: green" | Yes
| A11
| DSP
| 0x10203000
| [[DSP Services]]
|
|-
| style="background: orange" |?
| A11
| CDMA
| 0x10206000
| NewKernel11
| CDMA was moved here on New 3DS. [http://infocenter.arm.com/help/topic/com.arm.doc.ddi0424d/index.html CoreLink™ DMA-330].
|-
| style="background: orange" |?
| A11
| [[MVD Registers]]
| 0x10207000
| [[MVD Services]]
| New 3DS only?
|-
| style="background: green" | Yes
| A11
| AXI
| 0x1020F000
| TwlBg, [[GSP Services]]
| AXI Bus Configuration?
|-style="border-top: double"
| style="background: green" | Yes
| A11
| MIRROR
| 0x10300000-0x10400000
|
| Mirror of 0x10100000-0x10200000 (faster bus?), CDMA wants these addresses
|-style="border-top: double"
| style="background: green" | Yes
| A11
| [[GPU Registers]]
| 0x10400000
| Boot11, Kernel11, [[GSP Services]]
|
|-
| style="background: green" | Yes
| A11
| [[LCD Registers]]
| 0x10420000
| [[GSP Services]]
|
|}

IO registers starting at physical address 0x10200000 are not accessible from the ARM9 (which includes all LCD/GPU registers).

ARM11 kernel virtual address mappings for these registers varies for different builds. For ARM11 user mode applications you have:
physaddr = virtaddr - 0x1EC00000 + 0x10100000

=0x10012000=
Keys seem to be stored here? Access to this region is disabled once the ARM9 writes 0x2 to [[CONFIG|REG_SYSPROT9]]. Before writing that bit, the ARM9 copies the low u32 for the TWL keydata to +0x100 (and high u32 keydata to +0x104 with the New 3DS). On development units ([[CONFIG|UNITINFO]]!=0) ARM9 uses the first 8-bytes from 0x10012000 for the TWL keydata.

Originally the above TWL keyinit + region disable was done by Kernel9. However, with the [[New_3DS]] FIRM ARM9 binary this is now done in the [[FIRM]] ARM9 binary loader, which also uses the 0x10012000 region for key generation.

LCD Registers

2014-11-28T23:56:51Z

Cell9:

== Registers ==
{| class="wikitable" border="1"
! NAME
! PHYSICAL ADDRESS
! PROCESS VIRTUAL ADDRESS
! KERNEL VIRTUAL ADDRESS
! WIDTH
|-
| REG_LCDCOLORFILLMAIN
| 0x10202204
| 0x1ED02204
| 0xFFFD6204
| 4
|-
| REG_LCDCOLORFILLSUB
| 0x10202A04
| 0x1ED02A04
| 0xFFFD6A04
| 4
|-
| REG_LCDBACKLIGHTMAIN
| 0x10202240
| 0x1ED02240
| 0xFFFD6240
| 4
|-
| REG_LCDBACKLIGHTSUB
| 0x10202A40
| 0x1ED02A40
| 0xFFFD6A40
| 4
|}

REG_*MAIN registers are used for the top LCD, while SUB is used for the bottom LCD.

== REG_LCDCOLORFILL ==
{| class="wikitable" border="1"
! Bit
! Description
|-
| 7-0
| Red component intensity
|-
| 15-8
| Green component intensity
|-
| 23-16
| Blue component intensity
|-
| 24
| Enable
|-
| 31-25
| ?
|}
When the enable bit is set, the specified solid color is displayed on the LCD instead of the framebuffer.

3dbrew - User contributions [en]

DSP:RegisterInterruptEvents

IO Registers

LCD Registers