[PATCH] ipw2200: add module_param support for antenna selection
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 61cbf2e..297dd76 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -61,6 +61,7 @@
static const char ipw_modes[] = {
'a', 'b', 'g', '?'
};
+static int antenna = CFG_SYS_ANTENNA_BOTH;
#ifdef CONFIG_IPW_QOS
static int qos_enable = 0;
@@ -9627,7 +9628,9 @@
sys_config->disable_unicast_decryption = 1;
sys_config->exclude_multicast_unencrypted = 0;
sys_config->disable_multicast_decryption = 1;
- sys_config->antenna_diversity = CFG_SYS_ANTENNA_SLOW_DIV;
+ if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B)
+ antenna = CFG_SYS_ANTENNA_BOTH;
+ sys_config->antenna_diversity = antenna;
sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */
sys_config->dot11g_auto_detection = 0;
sys_config->enable_cts_to_self = 0;
@@ -11258,5 +11261,8 @@
module_param(roaming, int, 0444);
MODULE_PARM_DESC(roaming, "enable roaming support (default on)");
+module_param(antenna, int, 0444);
+MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)");
+
module_exit(ipw_exit);
module_init(ipw_init);