Author: adrian
Date: Sat May 28 02:14:24 2016
New Revision: 300896
URL: https://svnweb.freebsd.org/changeset/base/300896
Log:
[ath] add WB335 btcoex for initial testing.
This is like the WB222 coexistence (ie, "MCI", a message bus inside the
chip), and it's currently a cut/paste so I can start using it to flesh
out the differences with WB222.
It doesn't completely /do/ bluetooth coexistence, because it turns out
I need to add some contigmalloc'ed buffers to the btcoex path for this
type of hardware. I'm putting this work in the "people would like
to see functioning-ish btcoex before FreeBSD-11" bucket because I see
this as "broken".
Tested:
* QCA9535 (WB335) NIC, BT + 2GHz STA
Modified:
head/sys/dev/ath/if_ath_btcoex.c
Modified: head/sys/dev/ath/if_ath_btcoex.c
==============================================================================
--- head/sys/dev/ath/if_ath_btcoex.c Sat May 28 00:38:17 2016
(r300895)
+++ head/sys/dev/ath/if_ath_btcoex.c Sat May 28 02:14:24 2016
(r300896)
@@ -252,7 +252,69 @@ ath_btcoex_cfg_wb222(struct ath_softc *s
return (0);
}
+/*
+ * Initial QCA9565 / (WB335B) bluetooth coexistence settings,
+ * just for experimentation.
+ *
+ * Return 0 for OK; errno for error.
+ */
+static int
+ath_btcoex_cfg_wb335b(struct ath_softc *sc)
+{
+ HAL_BT_COEX_INFO btinfo;
+ HAL_BT_COEX_CONFIG btconfig;
+ struct ath_hal *ah = sc->sc_ah;
+
+ if (! ath_hal_btcoex_supported(ah))
+ return (EINVAL);
+
+ bzero(&btinfo, sizeof(btinfo));
+ bzero(&btconfig, sizeof(btconfig));
+
+ device_printf(sc->sc_dev, "Enabling WB335B BTCOEX\n");
+ btinfo.bt_module = HAL_BT_MODULE_JANUS; /* XXX not used? */
+ btinfo.bt_coex_config = HAL_BT_COEX_CFG_MCI;
+
+ /*
+ * MCI uses a completely different interface to speak
+ * to the bluetooth module - it's a command based
+ * thing over a serial line, rather than
+ * state pins to/from the bluetooth module.
+ *
+ * So, the GPIO configuration, polarity, etc
+ * doesn't matter on MCI devices; it's just
+ * completely ignored by the HAL.
+ */
+ btinfo.bt_gpio_bt_active = 4;
+ btinfo.bt_gpio_bt_priority = 8;
+ btinfo.bt_gpio_wlan_active = 5;
+
+ btinfo.bt_active_polarity = 1; /* XXX not used */
+ btinfo.bt_single_ant = 0; /* 2 antenna on WB335 */
+ btinfo.bt_isolation = 0; /* in dB, not used */
+
+ ath_hal_btcoex_set_info(ah, &btinfo);
+
+ btconfig.bt_time_extend = 0;
+ btconfig.bt_txstate_extend = 1; /* true */
+ btconfig.bt_txframe_extend = 1; /* true */
+ btconfig.bt_mode = HAL_BT_COEX_MODE_SLOTTED;
+ btconfig.bt_quiet_collision = 1; /* true */
+ btconfig.bt_rxclear_polarity = 1; /* true */
+ btconfig.bt_priority_time = 2;
+ btconfig.bt_first_slot_time = 5;
+ btconfig.bt_hold_rxclear = 1; /* true */
+
+ ath_hal_btcoex_set_config(ah, &btconfig);
+
+ /*
+ * Enable antenna diversity.
+ */
+ ath_hal_btcoex_set_parameter(ah, HAL_BT_COEX_ANTENNA_DIVERSITY, 1);
+
+ return (0);
+}
#if 0
@@ -313,6 +375,8 @@ ath_btcoex_attach(struct ath_softc *sc)
ret = ath_btcoex_cfg_wb222(sc);
} else if (strncmp(profname, "wb225", 5) == 0) {
ret = ath_btcoex_cfg_wb225(sc);
+ } else if (strncmp(profname, "wb335", 5) == 0) {
+ ret = ath_btcoex_cfg_wb335b(sc);
} else {
return (0);
}
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