Nintendo Switch Brew

BTM services: Difference between revisions

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== SetSlotMode ==
== SetSlotMode ==
Takes a type-0x19 input buffer containing a [[#DeviceSlotModeList]], no output.
Takes a type-0x19 input buffer containing a [[#DeviceSlotModeList]], no output.
Sends a request which is then handled as follows:
* Calls a func for getting the data from [[#DeviceSlotModeList]] etc for passing to another func, that func then does the following:
* Goes through multiple arrays of [[#BdAddress|BdAddress]].
** First array:
*** Validates the [[#BdAddress|BdAddress]] with state, skipping it if not found.
*** Calls the SetTsi wrapper func described below, with the above [[#BdAddress|BdAddress]] and tsi=0xFF (Exit). If this returns false, [[Bluetooth_Driver_services#CloseHidConnection|CloseHidConnection]] is used with the [[#BdAddress|BdAddress]].
** Second array:
*** Validates the [[#BdAddress|BdAddress]] with state, skipping it if not found.
*** Uses [[Bluetooth_Driver_services#SetBleConnectionParameter|SetBleConnectionParameter]] with bool=true. Then the required EventInfo is loaded, {...}.
** Then it goes through the first array again, except here it does the following:
*** Calls the same func for validating the [[#BdAddress|BdAddress]] with state, skipping it if not found. It is also skipped if the u32 at Address+0x8 is value 0x3.
*** Determines what Tsi value to use, on failure [[Bluetooth_Driver_services#CloseHidConnection|CloseHidConnection]] is used and the loop is continued.
*** Calls the SetTsi wrapper func described below, with the [[#BdAddress|BdAddress]] and the above Tsi value. If this returns false, [[Bluetooth_Driver_services#CloseHidConnection|CloseHidConnection]] is used with the [[#BdAddress|BdAddress]].
** It then goes through various arrays again for updating state.
** {...}
The SetTsi wrapper func is implemented as follows:
* Uses [[Bluetooth_Driver_services#SetTsi|SetTsi]], on failure true is returned.
* Gets the required EventInfo, returning false if a match wasn't found / EventInfo status indicates failure. True is returned for success.


== SetBluetoothMode ==
== SetBluetoothMode ==
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Takes a 0x44-byte input struct, no output.
Takes a 0x44-byte input struct, no output.


This is used by [[HID_services|hid]] at some point when there's new hid connections, leaving "Change Grip/Order" in the [[Controller_Applet]] with new connections also triggers it via [[HID_services|hid]] at some point.
Sends a request which is then handled as follows:
* Calls a func for getting the data from the input struct etc for passing to another func, that func is the same one called by [[#SetSlotMode]].


Sends a request which is then handled as follows:
The input struct has the following structure:
* Goes through multiple arrays of [[#BdAddress|BdAddress]].
 
** First array:
{| class="wikitable" border="1"
*** Validates the [[#BdAddress|BdAddress]] with state, skipping it if not found.
|-
*** Calls the SetTsi wrapper func described below, with the above [[#BdAddress|BdAddress]] and tsi=0xFF (Exit). If this returns false, [[Bluetooth_Driver_services#CloseHidConnection|CloseHidConnection]] is used with the [[#BdAddress|BdAddress]].
! Offset
** Second array:
! Size
*** Validates the [[#BdAddress|BdAddress]] with state, skipping it if not found.
! Description
*** Uses [[Bluetooth_Driver_services#SetBleConnectionParameter|SetBleConnectionParameter]] with bool=true. Then the required EventInfo is loaded, {...}.
|-
** Then it goes through the first array again, except here it does the following:
| 0x0 || 0x10 * 4 || Array of the below struct.
*** Calls the same func for validating the [[#BdAddress|BdAddress]] with state, skipping it if not found. It is also skipped if the u32 at Address+0x8 is value 0x3.
|-
*** Determines what Tsi value to use, on failure [[Bluetooth_Driver_services#CloseHidConnection|CloseHidConnection]] is used and the loop is continued.
| 0x40 || 0x4 || s32 count, for the array at +0.
*** Calls the SetTsi wrapper func described below, with the [[#BdAddress|BdAddress]] and the above Tsi value. If this returns false, [[Bluetooth_Driver_services#CloseHidConnection|CloseHidConnection]] is used with the [[#BdAddress|BdAddress]].
|}
** It then goes through various arrays again for updating state.
 
** {...}
Struct for the above array:


The SetTsi wrapper func is implemented as follows:
{| class="wikitable" border="1"
* Uses [[Bluetooth_Driver_services#SetTsi|SetTsi]], on failure true is returned.
|-
* Gets the required EventInfo, returning false if a match wasn't found / EventInfo status indicates failure. True is returned for success.
! Offset
! Size
! Description
|-
| 0x0 || 0x6 || [[#BdAddress|BdAddress]]
|-
| 0x6 || 0x6 || Unused
|-
| 0xC || 0x1 || Used to determine data which is then used for [[Bluetooth_Driver_services#BleConnectionParameter|BleConnectionParameter]].
|-
| 0xD || 0x3 || Padding
|}


== Cmd62 ==
== Cmd62 ==
Retrieved from "https://switchbrew.org/wiki/BTM_services"