393f3796b6
Functionality for switching antenna mode (TX/RX chains) from 1x1 to 2x2 and vice versa dynamically without reloading the driver. This feature is currently supported in the disconnected state where only scan operation can happen and standalone station mode. The changes include the following: 1. Driver command IOCTL to set/get antenna mode as follows DRIVER SETANTENNAMODE <# of streams> DRIVER GETANTENNAMODE 2. Processing SETANTENNAMODE and GETANTENNAMODE to dynamically change the number of TX/RX chains as follows Dynamic switch request is allowed only when the supported number of chains in the system is greater than 1. Dynamic antenna switch is achieved by sending WMI_PDEV_SET_ANTENNA_MODE command to the FW chain mask manager with parameters to change the number of TX/RX chains. This request will be maintained by the chain mask manager and applied whenever only one MAC is active. If there is a station association followed by dynamic switch to 1x1 mode then SM power save IE is included in the HT caps of the association/reassociation request management frame. Dynamic switch in the connected standalone station mode is achieved by sending SMPS force mode command with appropriate values for smps mode by the chain mask manager. Change-Id: I65d51d173a627dc2751ef10cc2172a5215e7b8db CRs-Fixed: 931250
This is CNSS WLAN Host Driver for products starting from iHelium