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[ath] add WB335 btcoex for initial testing.

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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
This commit is contained in:
Adrian Chadd 2016-05-28 02:14:24 +00:00
parent addd6a52c4
commit 38c4fdf4c6
1 changed files with 64 additions and 0 deletions
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64
sys/dev/ath/if_ath_btcoex.c
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@ -252,7 +252,69 @@ ath_btcoex_cfg_wb222(struct ath_softc *sc)
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);
}