SceOled: Difference between revisions
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|- | |- | ||
! Cmd | ! Cmd | ||
! Name | |||
! Size | ! Size | ||
! Buf | ! Buf | ||
! Description | ! Description | ||
|- | |- | ||
| | | 0x6 | ||
| | | GET_RED_CHANNEL | ||
| 0x1 | |||
| Unknown | | Unknown | ||
| Unknown | | Unknown | ||
|- | |- | ||
| | | 0x7 | ||
| | | GET_GREEN_CHANNEL | ||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0x8 | |||
| GET_BLUE_CHANNEL | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0xA | |||
| GET_POWER_MODE | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0xB | |||
| GET_ADDRESS_MODE | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0xC | |||
| GET_PIXEL_FORMAT | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0xD | |||
| GET_DISPLAY_MODE | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0xF | |||
| GET_DIAGNOSTIC_RESULT | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0x26 | |||
| SET_GAMMA_CURVE | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0x36 | |||
| SET_ADDRESS_MODE | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0x3A | |||
| SET_PIXEL_FORMAT | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0xB2 | |||
| TEMP_SWIRE | |||
| 0x1 | |||
| Unknown | |||
| Unknown | |||
|- | |||
| 0xF9 | |||
| SET_NORMAL_GAMMA_CONTROL | |||
| 0x16 | |||
| Unknown, for example <code><0x01, 0xCFBE9F9F, 0xCBC2C9D7, 0xDEE3E1BB, 0xFAD3D0D6, 0x002FE6ED, 0x2F></code> (Little-Endian) | | Unknown, for example <code><0x01, 0xCFBE9F9F, 0xCBC2C9D7, 0xDEE3E1BB, 0xFAD3D0D6, 0x002FE6ED, 0x2F></code> (Little-Endian) | ||
| Change Brightness | | Change Brightness |
Revision as of 13:41, 14 October 2020
Module
Version | World | Privilege |
---|---|---|
1.69-3.60 | Non-secure | Kernel |
Libraries
Known NIDs
Version | Name | World | Visibility | NID |
---|---|---|---|---|
1.69 | SceOledForDriver | Non-secure | Kernel | 0x60C7478A |
Resources
TODO: move to OLED.
- Datasheets:
- AMS495QA04 (very useful: hardware + driver API): File:AMS495QA04 Ver2.0 20121113 201509238327.pdf
- AMS495QA01 (hardware, not very useful): File:AMS495QA01 datasheet.pdf
- Baremetal OLED usage: https://github.com/xerpi/vita-baremetal-sample/blob/master/src/oled.c
- Linux driver of a similar screen: http://elixir.free-electrons.com/linux/latest/source/drivers/gpu/drm/panel/panel-samsung-ld9040.c#L37
- Some interesting paper explaining how the gamma lookup table is generated: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1343918
- DCS documentation: https://www.tonylabs.com/wp-content/uploads/MIPI_DCS_specification_v1.02.00.pdf
Types
enum SceOledError { SCE_OLED_ERROR_INVALID_BRIGHTNESS_VALUE = 0x803F0A02, SCE_OLED_ERROR_INVALID_READY_STATUS = 0x803F0A03, SCE_OLED_ERROR_NOT_READY = 0x803F0A04, SCE_OLED_ERROR_INTERNAL = 0x803F0A05 }; enum SceOledStatus { SCE_OLED_STATUS_NOT_READY = 0, SCE_OLED_STATUS_READY = 1, SCE_OLED_STATUS_ERROR = 2 }; struct SceOledCmd { unsigned char cmd, unsigned char size, unsigned char buf[size] }
A cmd_queue
is a contiguous array of SceOledCmd
of different sizes. To get the next SceOledCmd
of a queue, do:
struct SceOledCmd *cur_cmd = ... struct SceOledCmd *next_cmd = &(cur_cmd->buf) + cur_cmd->size; if (next_cmd->cmd == 0 || next_cmd->cmd == 255) {...} // End of queue
Available commands
Cmd | Name | Size | Buf | Description |
---|---|---|---|---|
0x6 | GET_RED_CHANNEL | 0x1 | Unknown | Unknown |
0x7 | GET_GREEN_CHANNEL | 0x1 | Unknown | Unknown |
0x8 | GET_BLUE_CHANNEL | 0x1 | Unknown | Unknown |
0xA | GET_POWER_MODE | 0x1 | Unknown | Unknown |
0xB | GET_ADDRESS_MODE | 0x1 | Unknown | Unknown |
0xC | GET_PIXEL_FORMAT | 0x1 | Unknown | Unknown |
0xD | GET_DISPLAY_MODE | 0x1 | Unknown | Unknown |
0xF | GET_DIAGNOSTIC_RESULT | 0x1 | Unknown | Unknown |
0x26 | SET_GAMMA_CURVE | 0x1 | Unknown | Unknown |
0x36 | SET_ADDRESS_MODE | 0x1 | Unknown | Unknown |
0x3A | SET_PIXEL_FORMAT | 0x1 | Unknown | Unknown |
0xB2 | TEMP_SWIRE | 0x1 | Unknown | Unknown |
0xF9 | SET_NORMAL_GAMMA_CONTROL | 0x16 | Unknown, for example <0x01, 0xCFBE9F9F, 0xCBC2C9D7, 0xDEE3E1BB, 0xFAD3D0D6, 0x002FE6ED, 0x2F> (Little-Endian)
|
Change Brightness |
SceOledForDriver
sceOledWaitReadyForDriver
Version | NID |
---|---|
3.60 | 0x0CC6BCB4 |
Waits until the OLED has been initialized.
int sceOledWaitReadyForDriver(void);
SceOledForDriver_26F9EEA8_oled_disable
Version | NID |
---|---|
3.60 | 0x26F9EEA8 |
Disables the OLED by clearing the GPIO bus 0 port 0.
int SceOledForDriver_26F9EEA8_oled_disable(void);
SceOledForDriver_2F0C4B67_send_cmd
Version | NID |
---|---|
3.60 | 0x2F0C4B67 |
Sends a command to the OLED (via SPI).
int SceOledForDriver_2F0C4B67_send_cmd(u8 cmd, void *buffer, int size);
sceOledGetBrightnessForDriver
Version | NID |
---|---|
3.60 | 0x43EF811A |
Get the wide brightness value (0-65536
).
int sceOledGetBrightnessForDriver(void);
sceOledDisplayOnForDriver
Version | NID |
---|---|
3.60 | 0x4C7836C7 |
int sceOledDisplayOnForDriver(void);
sceOledGetDisplayColorSpaceModeForDriver
Version | NID |
---|---|
3.60 | 0x4F8A1D4A |
int sceOledGetDisplayColorSpaceModeForDriver(void);
SceOledForDriver_6B1E0B52_oled_enable
Version | NID |
---|---|
3.60 | 0x6B1E0B52 |
Enables the OLED by setting the GPIO bus 0 port 0.
int SceOledForDriver_6B1E0B52_oled_enable(void);
SceOledForDriver_9F4ABDDC_get_status
Version | NID |
---|---|
0.940-3.60 | 0x9F4ABDDC |
Returns the OLED status by reading the GPIO bus 0 port 0.
int SceOledForDriver_9F4ABDDC_get_status(void);
sceOledDisplayOffForDriver
Version | NID |
---|---|
3.60 | 0xBC84602E |
int sceOledDisplayOffForDriver(void);
sceOledGetDDBForDriver
Version | NID |
---|---|
3.60 | 0xC9D5987C |
Returns the Device Descriptor Block (DDB), read with MIPI DSI command read_DDB_start
(0xA1
).
int sceOledGetDDBForDriver(unsigned short *supplier_id, unsigned short *supplier_elective_data);
sceOledSetDisplayColorSpaceModeForDriver
Version | NID |
---|---|
3.60 | 0xDABBD9D3 |
int sceOledSetDisplayColorSpaceModeForDriver(int mode);
SceOledForDriver_E30604CC_dispatch_cmd_list
Version | NID |
---|---|
3.60 | 0xE30604CC |
Dispatches the OLED cmd list (using SceOledForDriver_2F0C4B67_send_cmd).
int SceOledForDriver_E30604CC_dispatch_cmd_list(void);
sceOledSetBrightnessForDriver
Version | NID |
---|---|
3.60 | 0xF9624C47 |
Set the brightness (brightness needs to be in the range 0-65536
). 0
means screen turned off, 1
means screen dimmed (like if you wait for a long time without touching your screen).
The brightness has actually 17 different values: 1 special value for brightness=0
, and 16 different values for the rest (real_value=brightness/4096
).
int sceOledSetBrightnessForDriver(SceUInt32 brightness);
SceOledForDriver_ED2D6F19_set_status
Version | NID |
---|---|
0.940-3.60 | 0xED2D6F19 |
Used to enable or disable.
// status: 0: disable, 1: enable int SceOledForDriver_ED2D6F19_set_status(int status);
SceOledForDriver_DDB1412B_reset
Version | NID |
---|---|
0.940-3.60 | 0xDDB1412B |
Used to reset.
int SceOledForDriver_DDB1412B_reset(void);
SceOledForDriver_3C990F53
Version | NID |
---|---|
0.996 | 0x3C990F53 |
3.60 | not present |
Returns 0 on success.
int SceOledForDriver_3C990F53(void);