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Bluetooth: Make Kconfig buffer sizes follow MTU sizes

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It's more intuitive to specify needed MTU sizes instead of raw buffer
sizes. The exact buffer size calculations can instead be made
internally in the code (using the BT_L2CAP_BUF_SIZE helper macro).

Change-Id: I0637340a7d99e04020f57f49ecd8e6dcfcc4bcf4
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Johan Hedberg 2015-11-06 12:19:26 +02:00 • committed by Anas Nashif
commit 8167ababe0
6 changed files with 26 additions and 28 deletions
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22
net/bluetooth/Kconfig
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@ -94,14 +94,22 @@ config BLUETOOTH_ACL_IN_COUNT
help
Number of buffers available for incoming ACL data.
config BLUETOOTH_ACL_IN_SIZE
int "Size of incoming ACL data buffers"
default 74 if BLUETOOTH_SMP
default 32 if !BLUETOOTH_SMP
range 74 1300 if BLUETOOTH_SMP
range 32 1300 if !BLUETOOTH_SMP
config BLUETOOTH_L2CAP_IN_MTU
int "Maximum supported L2CAP MTU for incoming data"
default 65 if BLUETOOTH_SMP
default 23 if !BLUETOOTH_SMP
range 65 1300 if BLUETOOTH_SMP
range 23 1300 if !BLUETOOTH_SMP
help
Maximum size of each incoming ACL data buffer.
Maximum size of each incoming L2CAP PDU.
config BLUETOOTH_ATT_MTU
int "Attribute Protocol (ATT) channel MTU"
default 23
range 23 BLUETOOTH_L2CAP_IN_MTU
help
The MTU for the ATT channel. The minimum and default is 23,
whereas the maximum is limited by CONFIG_BLUETOOTH_L2CAP_IN_MTU.
endif # BLUETOOTH_CONN
if BLUETOOTH_PERIPHERAL || BLUETOOTH_CENTRAL