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Document the AR9285/AR9485 LNA configuration information that's

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stored in the ctl/ext RSSI field for chain 2.

Tested:

* AR9285, STA
This commit is contained in:
Adrian Chadd 2013-06-05 00:39:20 +00:00
parent 2cdc5a48f6
commit bd77565e39
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251399
1 changed files with 26 additions and 0 deletions
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26
sys/dev/ath/ath_hal/ah_desc.h
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@ -157,6 +157,32 @@ struct ath_rx_status {
#define HAL_RX_IS_APSD 0x0100 /* Is ASPD trigger frame */
#define HAL_RX_STBC 0x0200 /* Is an STBC frame */
/*
* This is the format of RSSI[2] on the AR9285/AR9485.
* It encodes the LNA configuration information.
*
* For boards with an external diversity antenna switch,
* HAL_RX_LNA_EXTCFG encodes which configuration was
* used (antenna 1 or antenna 2.) This feeds into the
* switch table and ensures that the given antenna was
* connected to an LNA.
*/
#define HAL_RX_LNA_LNACFG 0x80 /* 1 = main LNA config used, 0 = ALT */
#define HAL_RX_LNA_EXTCFG 0x40 /* 0 = external diversity ant1, 1 = ant2 */
#define HAL_RX_LNA_CFG_USED 0x30 /* 2 bits; LNA config used on RX */
#define HAL_RX_LNA_CFG_USED_S 4
#define HAL_RX_LNA_CFG_MAIN 0x0c /* 2 bits; "Main" LNA config */
#define HAL_RX_LNA_CFG_ALT 0x02 /* 2 bits; "Alt" LNA config */
/*
* This is the format of RSSI_EXT[2] on the AR9285/AR9485.
* It encodes the switch table configuration and fast diversity
* value.
*/
#define HAL_RX_LNA_FASTDIV 0x40 /* 1 = fast diversity measurement done */
#define HAL_RX_LNA_SWITCH_0 0x30 /* 2 bits; sw_0[1:0] */
#define HAL_RX_LNA_SWITCH_COM 0x0f /* 4 bits, sw_com[3:0] */
enum {
HAL_PHYERR_UNDERRUN = 0, /* Transmit underrun */
HAL_PHYERR_TIMING = 1, /* Timing error */