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-rw-r--r--sys/dev/ath/if_ath_spectral.c18
-rw-r--r--sys/dev/ath/if_athvar.h2
2 files changed, 18 insertions, 2 deletions
diff --git a/sys/dev/ath/if_ath_spectral.c b/sys/dev/ath/if_ath_spectral.c
index 12fb87a7..0dc0114 100644
--- a/sys/dev/ath/if_ath_spectral.c
+++ b/sys/dev/ath/if_ath_spectral.c
@@ -82,13 +82,20 @@ struct ath_spectral_state {
*/
/*
- * Attach DFS to the given interface
+ * Attach spectral to the given interface
*/
int
ath_spectral_attach(struct ath_softc *sc)
{
struct ath_spectral_state *ss;
+ /*
+ * If spectral isn't supported, don't error - just
+ * quietly complete.
+ */
+ if (! ath_hal_spectral_supported(sc->sc_ah))
+ return (0);
+
ss = malloc(sizeof(struct ath_spectral_state),
M_TEMP, M_WAITOK | M_ZERO);
@@ -106,11 +113,15 @@ ath_spectral_attach(struct ath_softc *sc)
}
/*
- * Detach DFS from the given interface
+ * Detach spectral from the given interface
*/
int
ath_spectral_detach(struct ath_softc *sc)
{
+
+ if (! ath_hal_spectral_supported(sc->sc_ah))
+ return (0);
+
if (sc->sc_spectral != NULL) {
free(sc->sc_spectral, M_TEMP);
}
@@ -148,6 +159,9 @@ ath_ioctl_spectral(struct ath_softc *sc, struct ath_diag *ad)
HAL_SPECTRAL_PARAM *pe;
struct ath_spectral_state *ss = sc->sc_spectral;
+ if (! ath_hal_spectral_supported(sc->sc_ah))
+ return (EINVAL);
+
if (ad->ad_id & ATH_DIAG_IN) {
/*
* Copy in data.
diff --git a/sys/dev/ath/if_athvar.h b/sys/dev/ath/if_athvar.h
index 12252ed..2e170a3 100644
--- a/sys/dev/ath/if_athvar.h
+++ b/sys/dev/ath/if_athvar.h
@@ -1303,6 +1303,8 @@ void ath_intr(void *);
#define ath_hal_get_chan_ext_busy(_ah) \
((*(_ah)->ah_get11nExtBusy)((_ah)))
+#define ath_hal_spectral_supported(_ah) \
+ (ath_hal_getcapability(_ah, HAL_CAP_SPECTRAL_SCAN, 0, NULL) == HAL_OK)
#define ath_hal_spectral_get_config(_ah, _p) \
((*(_ah)->ah_spectralGetConfig)((_ah), (_p)))
#define ath_hal_spectral_configure(_ah, _p) \
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