svn commit: r251441 - head/sys/dev/ath/ath_hal/ar9002
Adrian Chadd
adrian at FreeBSD.org
Wed Jun 5 22:21:13 UTC 2013
Author: adrian
Date: Wed Jun 5 22:21:13 2013
New Revision: 251441
URL: http://svnweb.freebsd.org/changeset/base/251441
Log:
As a temporary work-around (read: until there's a nice API for exposing
and controlling this form of antenna diversity) - print out the AR9285
antenna diversity configuration at attach time.
This will help track down and diagose if/when people have connectivity
issues on cards (eg if they connect a single antenna to LNA1, yet the
card has RX configured to only occur on LNA2.)
Tested:
* AR9285 w/ antenna diversity enabled in EEPROM;
* AR9285 w/ antenna diversity disabled in EEPROM; mapping only to a
single antenna (LNA1.)
Modified:
head/sys/dev/ath/ath_hal/ar9002/ar9285_attach.c
Modified: head/sys/dev/ath/ath_hal/ar9002/ar9285_attach.c
==============================================================================
--- head/sys/dev/ath/ath_hal/ar9002/ar9285_attach.c Wed Jun 5 21:56:29 2013 (r251440)
+++ head/sys/dev/ath/ath_hal/ar9002/ar9285_attach.c Wed Jun 5 22:21:13 2013 (r251441)
@@ -105,6 +105,28 @@ ar9285AniSetup(struct ath_hal *ah)
ar5416AniAttach(ah, &aniparams, &aniparams, AH_TRUE);
}
+static const char * ar9285_lna_conf[] = {
+ "LNA1-LNA2",
+ "LNA2",
+ "LNA1",
+ "LNA1+LNA2",
+};
+
+static void
+ar9285_eeprom_print_diversity_settings(struct ath_hal *ah)
+{
+ const HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
+ const MODAL_EEP4K_HEADER *pModal = &ee->ee_base.modalHeader;
+
+ ath_hal_printf(ah, "[ath] AR9285 Main LNA config: %s\n",
+ ar9285_lna_conf[(pModal->antdiv_ctl2 >> 2) & 0x3]);
+ ath_hal_printf(ah, "[ath] AR9285 Alt LNA config: %s\n",
+ ar9285_lna_conf[pModal->antdiv_ctl2 & 0x3]);
+ ath_hal_printf(ah, "[ath] LNA diversity %s, Diversity %s\n",
+ ((pModal->antdiv_ctl1 & 0x1) ? "enabled" : "disabled"),
+ ((pModal->antdiv_ctl1 & 0x8) ? "enabled" : "disabled"));
+}
+
/*
* Attach for an AR9285 part.
*/
@@ -309,6 +331,13 @@ ar9285Attach(uint16_t devid, HAL_SOFTC s
goto bad;
}
+ /*
+ * Print out the EEPROM antenna configuration mapping.
+ * Some devices have a hard-coded LNA configuration profile;
+ * others enable diversity.
+ */
+ ar9285_eeprom_print_diversity_settings(ah);
+
/* Print out whether the EEPROM settings enable AR9285 diversity */
if (ar9285_check_div_comb(ah)) {
ath_hal_printf(ah, "[ath] Enabling diversity for Kite\n");
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