From 810dabd466fe70869b66ab64dd326b6153cef645 Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Tue, 24 Jan 2006 16:36:59 +0800 Subject: [PATCH] [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 Signed-off-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/ipw2200.c | 20 ++++++++++++++++++- drivers/net/wireless/ipw2200.h | 35 ++++++++++++++++++++-------------- 2 files changed, 40 insertions(+), 15 deletions(-) diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index 671631831226..e6a23c2be1af 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -55,6 +55,7 @@ static int associate = 1; 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 struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev) 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 @@ static int ipw_config(struct ipw_priv *priv) /* 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_param(mode, int, 0444); 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)"); diff --git a/drivers/net/wireless/ipw2200.h b/drivers/net/wireless/ipw2200.h index 5f32834745b5..d6d7d9db0462 100644 --- a/drivers/net/wireless/ipw2200.h +++ b/drivers/net/wireless/ipw2200.h @@ -1566,13 +1566,18 @@ do { if (ipw_debug_level & (level)) \ #define EEPROM_BSS_CHANNELS_BG (GET_EEPROM_ADDR(0x2c,LSB)) /* 2 bytes */ #define EEPROM_HW_VERSION (GET_EEPROM_ADDR(0x72,LSB)) /* 2 bytes */ -/* NIC type as found in the one byte EEPROM_NIC_TYPE offset*/ +/* NIC type as found in the one byte EEPROM_NIC_TYPE offset */ #define EEPROM_NIC_TYPE_0 0 #define EEPROM_NIC_TYPE_1 1 #define EEPROM_NIC_TYPE_2 2 #define EEPROM_NIC_TYPE_3 3 #define EEPROM_NIC_TYPE_4 4 +/* Bluetooth Coexistence capabilities as found in EEPROM_SKU_CAPABILITY */ +#define EEPROM_SKU_CAP_BT_CHANNEL_SIG 0x01 /* we can tell BT our channel # */ +#define EEPROM_SKU_CAP_BT_PRIORITY 0x02 /* BT can take priority over us */ +#define EEPROM_SKU_CAP_BT_OOB 0x04 /* we can signal BT out-of-band */ + #define FW_MEM_REG_LOWER_BOUND 0x00300000 #define FW_MEM_REG_EEPROM_ACCESS (FW_MEM_REG_LOWER_BOUND + 0x40) #define IPW_EVENT_REG (FW_MEM_REG_LOWER_BOUND + 0x04) @@ -1869,21 +1874,23 @@ struct ipw_cmd_log { struct host_cmd cmd; }; -#define CFG_BT_COEXISTENCE_MIN 0x00 -#define CFG_BT_COEXISTENCE_DEFER 0x02 -#define CFG_BT_COEXISTENCE_KILL 0x04 -#define CFG_BT_COEXISTENCE_WME_OVER_BT 0x08 -#define CFG_BT_COEXISTENCE_OOB 0x10 -#define CFG_BT_COEXISTENCE_MAX 0xFF -#define CFG_BT_COEXISTENCE_DEF 0x80 /* read Bt from EEPROM */ - -#define CFG_CTS_TO_ITSELF_ENABLED_MIN 0x0 -#define CFG_CTS_TO_ITSELF_ENABLED_MAX 0x1 +/* SysConfig command parameters ... */ +/* bt_coexistence param */ +#define CFG_BT_COEXISTENCE_SIGNAL_CHNL 0x01 /* tell BT our chnl # */ +#define CFG_BT_COEXISTENCE_DEFER 0x02 /* defer our Tx if BT traffic */ +#define CFG_BT_COEXISTENCE_KILL 0x04 /* kill our Tx if BT traffic */ +#define CFG_BT_COEXISTENCE_WME_OVER_BT 0x08 /* multimedia extensions */ +#define CFG_BT_COEXISTENCE_OOB 0x10 /* signal BT via out-of-band */ + +/* clear-to-send to self param */ +#define CFG_CTS_TO_ITSELF_ENABLED_MIN 0x00 +#define CFG_CTS_TO_ITSELF_ENABLED_MAX 0x01 #define CFG_CTS_TO_ITSELF_ENABLED_DEF CFG_CTS_TO_ITSELF_ENABLED_MIN -#define CFG_SYS_ANTENNA_BOTH 0x000 -#define CFG_SYS_ANTENNA_A 0x001 -#define CFG_SYS_ANTENNA_B 0x003 +/* Antenna diversity param (h/w can select best antenna, based on signal) */ +#define CFG_SYS_ANTENNA_BOTH 0x00 /* NIC selects best antenna */ +#define CFG_SYS_ANTENNA_A 0x01 /* force antenna A */ +#define CFG_SYS_ANTENNA_B 0x03 /* force antenna B */ /* * The definitions below were lifted off the ipw2100 driver, which only -- 2.39.2