This patch adds the following to mgmt-api: - Add Extended Advertising Parameters Command - Add Extended Advertising Data Command - Changes Read Security Info to Read Controller Capabilities CMD Reviewed-by: Sonny Sasaka <sonnysasaka@xxxxxxxxxxxx> Reviewed-by: Alain Michaud <alainm@xxxxxxxxxxxx> --- Changes in v3: - Removed Tx Power Selected MGMT event - Changed Read Security Info cmd to Read Controller Capabilities Changes in v2: - Removed extra space in Add Extended Advertising Parameters API doc/mgmt-api.txt | 229 +++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 223 insertions(+), 6 deletions(-) diff --git a/doc/mgmt-api.txt b/doc/mgmt-api.txt index ca0d38469..85aa8b797 100644 --- a/doc/mgmt-api.txt +++ b/doc/mgmt-api.txt @@ -3110,19 +3110,19 @@ Set Wideband Speech Command Invalid Index -Read Security Information Command +Read Controller Capabilities Command ================================= Command Code: 0x0048 Controller Index: <controller id> Command Parameters: - Return Parameters: Security_Data_Length (2 Octets) - Security_Data (0-65535 Octets) + Return Parameters: Capabilities_Data_Length (2 Octets) + Capabilities_Data (0-65535 Octets) - This command is used to retrieve the supported security features + This command is used to retrieve the supported capabilities by the controller or the host stack. - The Security_Data_Length and Security_Data parameters provide + The Capabilities_Data_Length and Capabilities_Data parameters provide a list of security settings, features and information. It uses the same format as EIR_Data, but with the namespace defined here. @@ -3131,6 +3131,8 @@ Read Security Information Command 0x01 Flags 0x02 Max Encryption Key Size (BR/EDR) 0x03 Max Encryption Key Size (LE) + 0x04 Min Supported LE Tx Power (dBm) + 0x05 Max Supported LE Tx Power (dBm) Flags (data type 0x01) @@ -3146,6 +3148,15 @@ Read Security Information Command present, then it is unknown what the max encryption key size of the controller or host is in use. + Min/Max Supported LE Tx Power (data types 0x04 and 0x05) + + These fields indicate the supported range of LE Tx Power in + dBm across all supported PHYs. These values are populated + by the return of the LE Read Transmit Power HCI command. If + this HCI command is not available, the values default to + 0x7F, indicating HCI_TX_POWER_INVALID, as a valid range + is not available. + This command generates a Command Complete event on success or a Command Status event on failure. @@ -3574,6 +3585,212 @@ Remove Advertisement Monitor Command Busy +Add Extended Advertising Parameters Command +=========================================== + + Command Code: 0x0054 + Controller Index: <controller id> + Command Parameters: Instance (1 Octet) + Flags (4 Octets) + Params (2 Octets) + Duration (2 Octets) + Timeout (2 Octets) + MinInterval (4 Octets) + MaxInterval (4 Octets) + TxPower (1 Octet) + Return Parameters: Instance (1 Octet) + TxPower (1 Octet) + + This command is used to configure the parameters for Bluetooth Low + Energy advertising instance. This command is expected to be followed + by an Add Extended Advertising Data command to complete and enable + the advertising instance. + + Added advertising information with this command will not be visible + immediately if advertising is enabled via the Set Advertising + command. The usage of the Set Advertising command takes precedence + over this command. Instance information is stored and will be + advertised once advertising via Set Advertising has been disabled. + + The Instance identifier is a value between 1 and the number of + supported instances. The value 0 is reserved. + + With the Flags value the type of advertising is controlled and + the following flags are defined: + + 0 Switch into Connectable mode + 1 Advertise as Discoverable + 2 Advertise as Limited Discoverable + 3 Add Flags field to Adv_Data + 4 Add TX Power field to Adv_Data + 5 Add Appearance field to Scan_Rsp + 6 Add Local Name in Scan_Rsp + 7 Secondary Channel with LE 1M + 8 Secondary Channel with LE 2M + 9 Secondary Channel with LE Coded + + When the connectable flag is set, then the controller will use + undirected connectable advertising. The value of the connectable + setting can be overwritten this way. This is useful to switch a + controller into connectable mode only for LE operation. This is + similar to the mode 0x02 from the Set Advertising command. + + When the connectable flag is not set, then the controller will + use advertising based on the connectable setting. When using + non-connectable or scannable advertising, the controller will + be programmed with a non-resolvable random address. When the + system is connectable, then the identity address or resolvable + private address will be used. + + Using the connectable flag is useful for peripheral mode support + where BR/EDR (and/or LE) is controlled by Add Device. This allows + making the peripheral connectable without having to interfere + with the global connectable setting. + + Secondary channel flags can be used to advertise in secondary + channel with the corresponding PHYs. These flag bits are mutually + exclusive and setting multiple will result in Invalid Parameter + error. Choosing either LE 1M or LE 2M will result in using + extended advertising on the primary channel with LE 1M and the + respectively LE 1M or LE 2M on the secondary channel. Choosing + LE Coded will result in using extended advertising on the primary + and secondary channels with LE Coded. Choosing none of these flags + will result in legacy advertising. + + To allow future parameters to be optionally extended in this structure, + the Params member is used to specify which of the structure fields were + purposefully set by the caller. Unspecified parameters will be given + sensible defaults by the kernel before the advertisement is registered. + The Params bit field uses the following bit to parameter relationship: + + 0 The Duration parameter should be used + 1 The Timeout parameter should be used + 2 The Interval parameters should be used + 3 The Tx Power parameter should be used + + The Duration parameter configures the length of an Instance. The + value is in seconds. The default is 2 seconds. + + If only one advertising Instance has been added, then the Duration + value will be ignored. It only applies for the case where multiple + Instances are configured. In that case every Instance will be + available for the Duration time and after that it switches to + the next one. This is a simple round-robin based approach. + + The Timeout parameter configures the life-time of an Instance. In + case the value 0 is used it indicates no expiration time. If a + timeout value is provided, then the advertising Instance will be + automatically removed when the timeout passes. The value for the + timeout is in seconds. Powering down a controller will invalidate + all advertising Instances and it is not possible to add a new + Instance with a timeout when the controller is powered down. + + When a Timeout is provided, then the Duration subtracts from + the actual Timeout value of that Instance. For example an Instance + with Timeout of 5 and Duration of 2 will be scheduled exactly 3 + times, twice with 2 seconds and once with one second. Other + Instances have no influence on the Timeout. + + MinInterval and MaxInterval define the minimum and maximum advertising + intervals, with units as number of .625ms advertising slots. The Max + interval is expected to be greater than or equal to the Min interval, + and both must have values in the range [0x000020, 0xFFFFFF]. If either + condition is not met, the registration will fail. + + The provided Tx Power parameter will only be used if the controller + supports it, which can be determined by the presence of the + CanSetTxPower member of the Read Advertising Features command. + + The acceptable range for requested Tx Power is defined in the spec + (Version 5.2 | Vol 4, Part E, page 2585) to be [-127, +20] dBm, and the + controller will select a power value up to the requested one. The + transmission power selected by the controller is not guaranteed + to match the requested one, so the reply will contain the power + chosen by the controller. If the requested Tx Power is outside + the valid range, the registration will fail. + + Re-adding an already existing instance (i.e. issuing the Add Extended + Advertising Parameters command with an Instance identifier of an + existing instance) will update that instance's configuration. + + An instance being added or changed while another instance is + being advertised will not be visible immediately but only when + the new/changed instance is being scheduled by the round robin + advertising algorithm. + + Changes to an instance that is currently being advertised will + cancel that instance and switch to the next instance. The changes + will be visible the next time the instance is scheduled for + advertising. In case a single instance is active, this means + that changes will be visible right away. + + LE must already be enabled, and the controller must be powered, + otherwise a "rejected" status will be returned. + + This command generates a Command Complete event on success or a + Command Status event on failure. + + Possible errors: Failed + Rejected + Not Supported + Invalid Parameters + Busy + + +Add Extended Advertising Data Command +===================================== + + Command Code: 0x0055 + Controller Index: <controller id> + Command Parameters: Instance (1 Octet) + Advertising Data Length (1 Octet) + Scan Response Length (1 Octet) + Advertising Data (0-255 Octets) + Scan Response (0-255 Octets) + Return Parameters: Instance (1 Octet) + + The Add Extended Advertising Data command is used to update the + advertising data of an existing advertising instance known to the + kernel. It is expected to be called after an Add Extended Advertising + Parameters command, as part of the advertisement registration + process. + + If extended advertising is available, this call will initiate HCI + commands to set the instance's advertising data, set scan response + data, and then enable the instance. If extended advertising is + unavailable, the advertising instance structure maintained in kernel + will have its advertising data and scan response updated, and the + instance will either be scheduled immediately or left in the queue + for later advertisement as part of round-robin advertisement rotation + in software. + + If Scan_Rsp_Len is zero and the flags defined in Add Extended + Advertising Parameters command do not have connectable flag set and + the global connectable setting is off, then non-connectable + advertising is used. If Scan_Rsp_Len is larger than zero and + connectable flag is not set and the global advertising is off, + then scannable advertising is used. This small difference is + supported to provide less air traffic for devices implementing + broadcaster role. + + If the Instance provided does not match a known instance, or if the + provided advertising data or scan response are in an unrecognized + format, an "Invalid Parameters" status will be returned. + + If a "Set LE" or Advertising command is still in progress, a "Busy" + status will be returned. + + If the controller is not powered, a "rejected" status will be returned. + + This command generates a Command Complete event on success or a + Command Status event on failure. + + Possible errors: Failed + Rejected + Invalid Parameters + Busy + + Command Complete Event ====================== @@ -4576,4 +4793,4 @@ Advertisement Monitor Removed Event using the Remove Advertisement Monitor command. The event will only be sent to management sockets other than the - one through which the command was sent. + one through which the command was sent. \ No newline at end of file -- 2.28.0.709.gb0816b6eb0-goog
