Difference between revisions of "GPIO Services"
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| Line 4: | Line 4: | ||
|- | |- | ||
! Service name | ! Service name | ||
| − | ! Permitted | + | ! Permitted GPIO bitmasks |
|- | |- | ||
| gpio:CDC | | gpio:CDC | ||
| Line 28: | Line 28: | ||
|} | |} | ||
| − | For the mapping between | + | For the mapping between GPIO bitmasks and IRQs see: [[GPIO:BindInterrupt#Supported_values]]. |
The commands for these services are identical. | The commands for these services are identical. | ||
| + | |||
| + | The input bitmask for each command is masked with the above permission bitmask, if the result is non-zero an error is occurred. | ||
= GPIO Services = | = GPIO Services = | ||
Revision as of 04:58, 20 January 2017
GPIO Service Names
| Service name | Permitted GPIO bitmasks |
|---|---|
| gpio:CDC | 0x48 |
| gpio:MCU | 0x48020 |
| gpio:HID | 0x4301 |
| gpio:NWM | 0x40020 |
| gpio:IR | 0xEC0 |
| gpio:NFC | 0x13000 |
| gpio:QTM | 0x20000 |
For the mapping between GPIO bitmasks and IRQs see: GPIO:BindInterrupt#Supported_values.
The commands for these services are identical.
The input bitmask for each command is masked with the above permission bitmask, if the result is non-zero an error is occurred.
GPIO Services
| Command Header | Description | Uses GPIO Regs |
|---|---|---|
| 0x0001.... | ?(u32 unk1,u32* ret) | 0x10147010, 0x10147020 |
| 0x00020080 | ?(u32 unk1,u32 unk2) | 0x10147010, 0x10147020 |
| 0x0003.... | ?(u32 unk1,u32* ret) | 0x10147010, 0x10147024 |
| 0x00040080 | ?(u32 unk1,u32 unk2) | 0x10147010, 0x10147024 |
| 0x0005.... | ?(u32 unk1,u32* ret) | 0x10147010, 0x10147024 |
| 0x00060080 | ?(u32 unk1,u32 unk2) | 0x10147010, 0x10147024 |
| 0x00070040 | GetIRGPIO(u32 bitmask) Output u32 is written to cmdreply[2]. | 0x10147000, 0x10147010, 0x10147014, 0x10147020, 0x10147028 |
| 0x00080080 | SetIRGPIO(u32 unk1,u32 unk2) | 0x10147010, 0x10147014, 0x10147020, 0x10147028 |
| 0x00090082 | BindInterrupt | None |
| 0x000A0042 | UnbindInterrupt | None |
GPIO Bitmask
The bitmask used by GetIRGPIO(and likely others) determines which bits in the GPIO registers to access. The output value from GetIRGPIO uses the same format as the bitmask: the values of bits in the output field are set to the value of GPIO data when those bits are set in the input bitmask.
| Bits in the bitmask | Register | Bits from register |
|---|---|---|
| 0-2 (0x7) | 0x10147000 | 0-2 |
| 3-4 (0x18) | 0x10147010 | 0-1 |
| 5 (0x20) | 0x10147014 | 0 |
| 6-17 (0x3FFC0) | 0x10147020 | 0-11 |
| 18 (0x40000) | 0x10147028 | 0 |