SceSdstor: Difference between revisions
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* [[Memory_Card|Memory card]] | * [[Memory_Card|Memory card]] | ||
* USB Mass Storage | * USB Mass Storage | ||
* Micro SD card / SD card | |||
{| class="wikitable" | {| class="wikitable" | ||
Line 13: | Line 12: | ||
! Version !! World !! Privilege | ! Version !! World !! Privilege | ||
|- | |- | ||
| 1.69-3. | | 1.69-3.740.011 || Non-secure || Kernel | ||
|} | |} | ||
Line 39: | Line 38: | ||
== Block Device Naming Rules == | == Block Device Naming Rules == | ||
First level prefix: | First level prefix: port. | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Name !! Index !! Description | ! Name !! Index !! Long name !! Description | ||
|- | |- | ||
| int || 0 || eMMC | | int || 0 || internal || eMMC | ||
|- | |- | ||
| ext || 1 || | | ext || 1 || external || SD card | ||
|- | |- | ||
| gcd || 1 || game card | | gcd || 1 || game card || Game Card | ||
|- | |- | ||
| mcd || 2 || memory card | | mcd || 2 || memory card || Memory Card | ||
|- | |- | ||
| uma || 3 || USB mass | | uma || 3 || usb mass || USB mass storage device | ||
|- | |- | ||
| usd || 4 || | | usd || 4 || micro sd || Micro SD card | ||
|- | |- | ||
| xmc || 0xFF || external memory card | | xmc || 0xFF || external memory card || Actual Memory Card when internal eMMC is mounted as Memory Card | ||
|} | |} | ||
Second level prefix: | Second level prefix: kind | ||
*lp - general. | *lp - general. | ||
*pp - no part. | *pp - no part. | ||
Third level prefix: | Third level prefix: stat | ||
*ina: inactive | *ina: inactive | ||
*act: active | *act: active | ||
*ign: ignore ( | *ign: ignore (same behaviour as inactive) | ||
Fourth level prefix: | Fourth level prefix: id | ||
*unused | *unused | ||
Line 88: | Line 87: | ||
*mediaid | *mediaid | ||
*pidata | *pidata | ||
*entire | *entire | ||
== Partition Block Devices == | == Partition Block Devices == | ||
Line 100: | Line 99: | ||
There can be up to 16 aliases from 0 to 15 per physical device (eMMC, Game Card, Memory Card) and alias 16 is hardcoded and called <code>entire</code>. | There can be up to 16 aliases from 0 to 15 per physical device (eMMC, Game Card, Memory Card) and alias 16 is hardcoded and called <code>entire</code>. | ||
Not all numeric names are fixed but <code>entire</code> numeric names are hardcoded. | |||
Not all numeric names are fixed | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! Block device !! Numeric name !! Hardcoded | ||
|- | |- | ||
| int-lp-ign-idstor | | int-lp-ign-idstor || 000 || no | ||
|- | |- | ||
| int-lp-act-sloader/int-lp-ina-sloader || 001 || | | int-lp-act-sloader/int-lp-ina-sloader || 001 || no | ||
|- | |- | ||
| int-lp-act-sloader/int-lp-ina-sloader || 002 || | | int-lp-act-sloader/int-lp-ina-sloader || 002 || no | ||
|- | |- | ||
| int-lp-act-os/int-lp-ina-os || 003 || | | int-lp-act-os/int-lp-ina-os || 003 || no | ||
|- | |- | ||
| int-lp-act-os/int-lp-ina-os || 004 || | | int-lp-act-os/int-lp-ina-os || 004 || no | ||
|- | |- | ||
| int-lp-ign-sysdata || 005 || | | int-lp-ign-sysdata || 005 || no | ||
|- | |- | ||
| int-lp-ign-vtrm || 006 || | | int-lp-ign-vtrm || 006 || no | ||
|- | |- | ||
| int-lp-ign-vsh || 007 || | | int-lp-ign-vsh || 007 || no | ||
|- | |- | ||
| int-lp-ign-vshdata || 008 || | | int-lp-ign-vshdata || 008 || no | ||
|- | |- | ||
| int-lp-ign-updater || 009 || | | int-lp-ign-updater || 009 || no | ||
|- | |- | ||
| int-lp-ign-pidata || 010 || | | int-lp-ign-pidata || 010 || no | ||
|- | |- | ||
| int-lp-ign-user || 011 || | | int-lp-ign-user || 011 || no | ||
|- | |- | ||
| int-lp-ign-userext || 012 || | | int-lp-ign-userext || 012 || no | ||
|- | |- | ||
| int-lp-act-entire || 016 || | | int-lp-act-entire || 016 || yes | ||
|- | |- | ||
| gcd-lp-ign-gamero, gcd-lp-act-mediaid (need to confirm) || 100 || | | gcd-lp-ign-gamero, gcd-lp-act-mediaid (need to confirm) || 100 || no | ||
|- | |- | ||
| gcd-lp-ign-gamerw (need to confirm) || 101 || | | gcd-lp-ign-gamerw (need to confirm) || 101 || no | ||
|- | |- | ||
| ext-lp-act-entire || 116 || | | ext-lp-act-entire || 116 || yes | ||
|- | |- | ||
| mcd-lp-act-mediaid || 200 || | | mcd-lp-act-mediaid || 200 || no | ||
|- | |- | ||
| mcd-lp-ign-userext || 201 || | | mcd-lp-ign-userext || 201 || no | ||
|- | |- | ||
| mcd-lp-act-entire || 216 || | | mcd-lp-act-entire || 216 || yes | ||
|- | |- | ||
| uma-lp-act-entire || 316 || | | uma-lp-act-entire || 316 || yes | ||
|- | |- | ||
| usd-lp-act-entire || 416 || | | usd-lp-act-entire || 416 || yes | ||
|} | |} | ||
== Types == | == Types == | ||
It looks like SceSdstor driver uses its own device type. | |||
{| class="wikitable" | {| class="wikitable" | ||
Line 183: | Line 170: | ||
| 3 | | 3 | ||
| USB Mass Storage | | USB Mass Storage | ||
|} | |} | ||
Also see [https://github.com/vitasdk/vita-headers/blob/master/include/psp2kern/internal/sdstor.h here (vita-headers)] | |||
<source lang="C"> | |||
typedef struct unknown_1C2C { // size is 0x1C | |||
typedef struct | |||
{ | |||
uint8_t data[0x1C]; | uint8_t data[0x1C]; | ||
}unknown_1C2C; | } unknown_1C2C; | ||
#define CARD_REMOVE_SDSTOR_REQUEST_EVENT_FLAG 0x01 | #define CARD_REMOVE_SDSTOR_REQUEST_EVENT_FLAG 0x01 | ||
Line 270: | Line 185: | ||
#define RESUME_SDSTOR_REQUEST_EVENT_FLAG 0x1000 | #define RESUME_SDSTOR_REQUEST_EVENT_FLAG 0x1000 | ||
typedef struct interrupt_argument //size is 0x28 | typedef struct interrupt_argument { // size is 0x28 | ||
uint32_t unk_0; | uint32_t unk_0; | ||
SceUID SceSdstorRequest_evid; // event id | SceUID SceSdstorRequest_evid; // event id | ||
Line 279: | Line 193: | ||
unknown_1C2C* unk_10; | unknown_1C2C* unk_10; | ||
//card swap protection | // card swap protection | ||
char cid_rnd[0x10]; // cid of the card / randomly generated non zero byte array / zero | char cid_rnd[0x10]; // cid of the card / randomly generated non zero byte array / zero | ||
Line 295: | Line 209: | ||
#define SDSTOR_SUBINTERRUPT_CODE_REMOVE 1 | #define SDSTOR_SUBINTERRUPT_CODE_REMOVE 1 | ||
typedef struct interrupt_info //size is 0xC | typedef struct interrupt_info { // size is 0xC | ||
insert_handler* SceSdstorCardInsert_handler; | insert_handler* SceSdstorCardInsert_handler; | ||
remove_handler* SceSdstorCardRemove_handler; | remove_handler* SceSdstorCardRemove_handler; | ||
Line 302: | Line 215: | ||
uint8_t SceSdstorCardInsert_subintr_code; | uint8_t SceSdstorCardInsert_subintr_code; | ||
uint8_t SceSdstorCardRemove_subintr_code; | uint8_t SceSdstorCardRemove_subintr_code; | ||
uint8_t | uint8_t unk_0xB; | ||
} interrupt_info; | } interrupt_info; | ||
Line 325: | Line 238: | ||
| 0x0040 || 0x200 || [[Partitions#Master Block|MBR]] of [[EMMC|eMMC]] | | 0x0040 || 0x200 || [[Partitions#Master Block|MBR]] of [[EMMC|eMMC]] | ||
|- | |- | ||
| 0x0240 || 0x200 || [[Partitions#Master Block|MBR]] of [[Game_Card|Game | | 0x0240 || 0x200 || [[Partitions#Master Block|MBR]] of [[Game_Card|Game card]] | ||
|- | |- | ||
| 0x0440 || 0x200 || [[Partitions#Master Block|MBR]] of [[Memory_Card|Memory card]] | | 0x0440 || 0x200 || [[Partitions#Master Block|MBR]] of [[Memory_Card|Memory card]] | ||
Line 331: | Line 244: | ||
| 0x0640 || 0x200 || [[Partitions#Master Block|MBR]] of USB Mass Storage | | 0x0640 || 0x200 || [[Partitions#Master Block|MBR]] of USB Mass Storage | ||
|- | |- | ||
| 0x0840 || 0x200 || MBR of usd device | | 0x0840 || 0x200 || [[Partitions#Master Block|MBR]] of micro SD card (usd device) | ||
|- | |- | ||
| 0x0A40 || 0x238 || sdstor_mbr_ctx element 0 | | 0x0A40 || 0x238 || sdstor_mbr_ctx element 0 | ||
Line 371: | Line 284: | ||
| 0x1CB8 || 0x8 || unknown | | 0x1CB8 || 0x8 || unknown | ||
|- | |- | ||
| 0x1CC0 || 0x200 || [[Partitions#Master Block|MBR]] of [[ | | 0x1CC0 || 0x200 || [[Partitions#Master Block|MBR]] of [[Memory_Card|Memory card]] (xmc device) | ||
|} | |} | ||
[[Category:ARM]] | |||
[[Category:Kernel]] | |||
[[Category:Modules]] | [[Category:Modules]] | ||
Latest revision as of 11:43, 13 November 2023
Module
This module is responsible for initializing all storage devices. This includes:
- eMMC
- Game gard
- Memory card
- USB Mass Storage
- Micro SD card / SD card
Version | World | Privilege |
---|---|---|
1.69-3.740.011 | Non-secure | Kernel |
Libraries
SceSdstor module does not export any function exсept module_start.
Interrupt Table
Index | Code | Name |
---|---|---|
0 | 0xDC | SceSdif0 |
1 | 0xDD | SceSdif1 |
2 | 0x3C | SceMsifIns |
3 | 0xF | SceUsbMass |
4 | 0xDF | SceSdif3 |
Block Device Naming Rules
First level prefix: port.
Name | Index | Long name | Description |
---|---|---|---|
int | 0 | internal | eMMC |
ext | 1 | external | SD card |
gcd | 1 | game card | Game Card |
mcd | 2 | memory card | Memory Card |
uma | 3 | usb mass | USB mass storage device |
usd | 4 | micro sd | Micro SD card |
xmc | 0xFF | external memory card | Actual Memory Card when internal eMMC is mounted as Memory Card |
Second level prefix: kind
- lp - general.
- pp - no part.
Third level prefix: stat
- ina: inactive
- act: active
- ign: ignore (same behaviour as inactive)
Fourth level prefix: id
- unused
- idstor
- sloader
- os
- vsh
- vshdata
- vtrm
- user
- userext
- gamero
- gamerw
- updater
- sysdata
- mediaid
- pidata
- entire
Partition Block Devices
Each partition has a numeric alias (string) that seems to be used to reference the partition.
Numeric names most likely follow order of partitions in MBR.
To access device node use /dev
prefix (like /dev/gcd-lp-ign-gamero
).
There can be up to 16 aliases from 0 to 15 per physical device (eMMC, Game Card, Memory Card) and alias 16 is hardcoded and called entire
.
Not all numeric names are fixed but entire
numeric names are hardcoded.
Block device | Numeric name | Hardcoded |
---|---|---|
int-lp-ign-idstor | 000 | no |
int-lp-act-sloader/int-lp-ina-sloader | 001 | no |
int-lp-act-sloader/int-lp-ina-sloader | 002 | no |
int-lp-act-os/int-lp-ina-os | 003 | no |
int-lp-act-os/int-lp-ina-os | 004 | no |
int-lp-ign-sysdata | 005 | no |
int-lp-ign-vtrm | 006 | no |
int-lp-ign-vsh | 007 | no |
int-lp-ign-vshdata | 008 | no |
int-lp-ign-updater | 009 | no |
int-lp-ign-pidata | 010 | no |
int-lp-ign-user | 011 | no |
int-lp-ign-userext | 012 | no |
int-lp-act-entire | 016 | yes |
gcd-lp-ign-gamero, gcd-lp-act-mediaid (need to confirm) | 100 | no |
gcd-lp-ign-gamerw (need to confirm) | 101 | no |
ext-lp-act-entire | 116 | yes |
mcd-lp-act-mediaid | 200 | no |
mcd-lp-ign-userext | 201 | no |
mcd-lp-act-entire | 216 | yes |
uma-lp-act-entire | 316 | yes |
usd-lp-act-entire | 416 | yes |
Types
It looks like SceSdstor driver uses its own device type.
Device Type Index | Description |
---|---|
0 | MMC card |
1 | SD card |
2 | Memory Card |
3 | USB Mass Storage |
Also see here (vita-headers)
typedef struct unknown_1C2C { // size is 0x1C uint8_t data[0x1C]; } unknown_1C2C; #define CARD_REMOVE_SDSTOR_REQUEST_EVENT_FLAG 0x01 #define IO_DEVCTL_SDSTOR_REQUEST_EVENT_FLAG 0x02 #define CARD_INSERT_SDSTOR_REQUEST_EVENT_FLAG 0x10 #define SUSPEND_SDSTOR_REQUEST_EVENT_FLAG 0x100 #define RESUME_SDSTOR_REQUEST_EVENT_FLAG 0x1000 typedef struct interrupt_argument { // size is 0x28 uint32_t unk_0; SceUID SceSdstorRequest_evid; // event id SceUID SceSdstorOpSync_evid; // event id interrupt_info* intr_info; // unknown_1C2C* unk_10; // card swap protection char cid_rnd[0x10]; // cid of the card / randomly generated non zero byte array / zero uint8_t intr_table_index; // check interrupt table section (also sd_stor_device index) uint8_t unk_25; // = 0 uint8_t unk_26; // = 0 uint8_t unk_27; } interrupt_argument; typedef int(insert_handler)(int unk, interrupt_argument* arg); typedef int(remove_handler)(int unk, interrupt_argument* arg); #define SDSTOR_SUBINTERRUPT_CODE_INSERT 0 #define SDSTOR_SUBINTERRUPT_CODE_REMOVE 1 typedef struct interrupt_info { // size is 0xC insert_handler* SceSdstorCardInsert_handler; remove_handler* SceSdstorCardRemove_handler; uint8_t intr_table_index; // check interrupt table section uint8_t SceSdstorCardInsert_subintr_code; uint8_t SceSdstorCardRemove_subintr_code; uint8_t unk_0xB; } interrupt_info;
Data segment layout
Address | Size | Description |
---|---|---|
0x0000 | 0x20 | unknown |
0x0020 | 0x14 | array of 5 integers (number created device handles?) (each corresponds to sd_stor_device) |
0x0034 | 0x4 | unknown |
0x0038 | 0x4 | SceSdStorDeviceHandle mempool SceUID of size 0x2000
|
0x003C | 0x4 | unknown |
0x0040 | 0x200 | MBR of eMMC |
0x0240 | 0x200 | MBR of Game card |
0x0440 | 0x200 | MBR of Memory card |
0x0640 | 0x200 | MBR of USB Mass Storage |
0x0840 | 0x200 | MBR of micro SD card (usd device) |
0x0A40 | 0x238 | sdstor_mbr_ctx element 0 |
0x0C78 | 0x238 | sdstor_mbr_ctx element 1 |
0x0EB0 | 0x238 | sdstor_mbr_ctx element 2 |
0x10E8 | 0x238 | sdstor_mbr_ctx element 3 |
0x1320 | 0x238 | sdstor_mbr_ctx element 4 |
0x1558 | 0x54 | sd_stor_device element 0 |
0x15AC | 0x54 | sd_stor_device element 1 |
0x1600 | 0x54 | sd_stor_device element 2 |
0x1654 | 0x54 | sd_stor_device element 3 |
0x16A8 | 0x54 | sd_stor_device element 4 |
0x16FC | 0x20 | vfs_add_data sdstor_dev_fs node
|
0x171C | 0x04 | SceSdStorVfs mempool SceUID of size 0x2000
|
0x1720 | 0x200 | first sector of external partition (0xD) (gcd-lp-act-mediaid) of game card (interrupt index 1) |
0x1920 | 0x200 | first sector of external partition (0xD) (mcd-lp-act-mediaid) of memory card (interrupt index 2) |
0x1B20 | 0xC8 | array of 5 interrupt_argument structures
|
0x1BE8 | 0x8 | suspend_register_callback opt |
0x1BF0 | 0x3C | array of 5 interrupt_info structures
|
0x1C2C | 0x8C | array of 5 unknown_1C2C structures
|
0x1CB8 | 0x8 | unknown |
0x1CC0 | 0x200 | MBR of Memory card (xmc device) |