[PATCH] ipw2200: Bluetooth coexistence support
I've added a new module param "bt_coexist" which defaults to OFF.
This does not seem to fix the firmware restarts, but it does do "the
right thing" and disables something that we were enabling by default:
signaling the Bluetooth h/w which channel we're on (whether or not the
BT h/w was out there).
Signed-off-by: Ben M Cahill <ben.m.cahill@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index 6716318..e6a23c2 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -55,6 +55,7 @@
static int auto_create = 1;
static int led = 0;
static int disable = 0;
+static int bt_coexist = 0;
static int hwcrypto = 1;
static const char ipw_modes[] = {
'a', 'b', 'g', '?'
@@ -9656,7 +9657,7 @@
static void init_sys_config(struct ipw_sys_config *sys_config)
{
memset(sys_config, 0, sizeof(struct ipw_sys_config));
- sys_config->bt_coexistence = 1; /* We may need to look into prvStaBtConfig */
+ sys_config->bt_coexistence = 0;
sys_config->answer_broadcast_ssid_probe = 0;
sys_config->accept_all_data_frames = 0;
sys_config->accept_non_directed_frames = 1;
@@ -10362,6 +10363,20 @@
/* set basic system config settings */
init_sys_config(&priv->sys_config);
+
+ /* Support Bluetooth if we have BT h/w on board, and user wants to.
+ * Does not support BT priority yet (don't abort or defer our Tx) */
+ if (bt_coexist) {
+ unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY];
+
+ if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG)
+ priv->sys_config.bt_coexistence
+ |= CFG_BT_COEXISTENCE_SIGNAL_CHNL;
+ if (bt_caps & EEPROM_SKU_CAP_BT_OOB)
+ priv->sys_config.bt_coexistence
+ |= CFG_BT_COEXISTENCE_OOB;
+ }
+
if (priv->ieee->iw_mode == IW_MODE_ADHOC)
priv->sys_config.answer_broadcast_ssid_probe = 1;
else
@@ -11351,6 +11366,9 @@
MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
#endif
+module_param(bt_coexist, int, 0444);
+MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)");
+
module_param(hwcrypto, int, 0444);
MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default on)");