diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00config.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00config.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c new file mode 100644 index 00000000000..de890a17d8f --- /dev/null +++ b/drivers/net/wireless/rt2x00/rt2x00config.c @@ -0,0 +1,165 @@ +/* + Copyright (C) 2004 - 2007 rt2x00 SourceForge Project + <http://rt2x00.serialmonkey.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the + Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* + Module: rt2x00lib + Abstract: rt2x00 generic configuration routines. + */ + +/* + * Set enviroment defines for rt2x00.h + */ +#define DRV_NAME "rt2x00lib" + +#include <linux/kernel.h> +#include <linux/module.h> + +#include "rt2x00.h" +#include "rt2x00lib.h" + +void rt2x00lib_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *mac) +{ + if (mac) + rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, mac); +} + +void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +{ + if (bssid) + rt2x00dev->ops->lib->config_bssid(rt2x00dev, bssid); +} + +void rt2x00lib_config_packet_filter(struct rt2x00_dev *rt2x00dev, int filter) +{ + /* + * Only configure the device when something has changed, + * or if we are in RESUME state in which case all configuration + * will be forced upon the device. + */ + if (!test_bit(INTERFACE_RESUME, &rt2x00dev->flags) && + !test_bit(PACKET_FILTER_PENDING, &rt2x00dev->flags)) + return; + + /* + * Write configuration to device and clear the update flag. + */ + rt2x00dev->ops->lib->config_packet_filter(rt2x00dev, filter); + __clear_bit(PACKET_FILTER_PENDING, &rt2x00dev->flags); +} + +void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, int type) +{ + struct interface *intf = &rt2x00dev->interface; + + /* + * Fallback when a invalid interface is attempted to + * be configured. If a monitor interface is present, + * we are going configure that, otherwise exit. + */ + if (type == INVALID_INTERFACE) { + if (is_monitor_present(intf)) + type = IEEE80211_IF_TYPE_MNTR; + else + return; + } + + /* + * Only configure the device when something has changed, + * or if we are in RESUME state in which case all configuration + * will be forced upon the device. + */ + if (!test_bit(INTERFACE_RESUME, &rt2x00dev->flags) && + (!(is_interface_present(intf) ^ + test_bit(INTERFACE_ENABLED, &rt2x00dev->flags)) && + !(is_monitor_present(intf) ^ + test_bit(INTERFACE_ENABLED_MONITOR, &rt2x00dev->flags)))) + return; + + /* + * Configure device. + */ + rt2x00dev->ops->lib->config_type(rt2x00dev, type); + + /* + * Update the configuration flags. + */ + if (type != IEEE80211_IF_TYPE_MNTR) { + if (is_interface_present(intf)) + __set_bit(INTERFACE_ENABLED, &rt2x00dev->flags); + else + __clear_bit(INTERFACE_ENABLED, &rt2x00dev->flags); + } else { + if (is_monitor_present(intf)) + __set_bit(INTERFACE_ENABLED_MONITOR, &rt2x00dev->flags); + else + __clear_bit(INTERFACE_ENABLED_MONITOR, + &rt2x00dev->flags); + } +} + +void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, struct ieee80211_conf *conf) +{ + int flags = 0; + + /* + * If we are in RESUME state we should + * force all configuration options. + */ + if (test_bit(INTERFACE_RESUME, &rt2x00dev->flags)) { + flags = CONFIG_UPDATE_ALL; + goto config; + } + + /* + * Check which configuration options have been + * updated and should be send to the device. + */ + if (rt2x00dev->rx_status.phymode != conf->phymode) + flags |= CONFIG_UPDATE_PHYMODE; + if (rt2x00dev->rx_status.channel != conf->channel) + flags |= CONFIG_UPDATE_CHANNEL; + if (rt2x00dev->tx_power != conf->power_level) + flags |= CONFIG_UPDATE_TXPOWER; + if (rt2x00dev->rx_status.antenna == conf->antenna_sel_rx) + flags |= CONFIG_UPDATE_ANTENNA; + + /* + * The following configuration options are never + * stored anywhere and will always be updated. + */ + flags |= CONFIG_UPDATE_SLOT_TIME; + flags |= CONFIG_UPDATE_BEACON_INT; + +config: + rt2x00dev->ops->lib->config(rt2x00dev, flags, conf); + + /* + * Some configuration changes affect the link quality + * which means we need to reset the link tuner. + */ + if (flags & (CONFIG_UPDATE_CHANNEL | CONFIG_UPDATE_ANTENNA)) + rt2x00lib_reset_link_tuner(rt2x00dev); + + rt2x00dev->rx_status.phymode = conf->phymode; + rt2x00dev->rx_status.freq = conf->freq; + rt2x00dev->rx_status.channel = conf->channel; + rt2x00dev->tx_power = conf->power_level; + rt2x00dev->rx_status.antenna = conf->antenna_sel_rx; +} |