020f3d0001
Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1542 lines
37 KiB
C
1542 lines
37 KiB
C
/**
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* This file contains the major functions in WLAN
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* driver. It includes init, exit, open, close and main
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* thread etc..
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*/
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#include <linux/moduleparam.h>
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#include <linux/delay.h>
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#include <linux/etherdevice.h>
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#include <linux/netdevice.h>
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#include <linux/if_arp.h>
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#include <linux/kthread.h>
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#include <net/iw_handler.h>
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#include <net/ieee80211.h>
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#include "host.h"
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#include "decl.h"
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#include "dev.h"
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#include "wext.h"
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#include "debugfs.h"
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#include "assoc.h"
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#include "join.h"
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#include "cmd.h"
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#define DRIVER_RELEASE_VERSION "323.p0"
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const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
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#ifdef DEBUG
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"-dbg"
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#endif
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"";
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/* Module parameters */
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unsigned int lbs_debug;
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EXPORT_SYMBOL_GPL(lbs_debug);
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module_param_named(libertas_debug, lbs_debug, int, 0644);
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#define LBS_TX_PWR_DEFAULT 20 /*100mW */
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#define LBS_TX_PWR_US_DEFAULT 20 /*100mW */
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#define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */
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#define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */
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#define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */
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/* Format { channel, frequency (MHz), maxtxpower } */
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/* band: 'B/G', region: USA FCC/Canada IC */
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static struct chan_freq_power channel_freq_power_US_BG[] = {
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{1, 2412, LBS_TX_PWR_US_DEFAULT},
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{2, 2417, LBS_TX_PWR_US_DEFAULT},
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{3, 2422, LBS_TX_PWR_US_DEFAULT},
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{4, 2427, LBS_TX_PWR_US_DEFAULT},
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{5, 2432, LBS_TX_PWR_US_DEFAULT},
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{6, 2437, LBS_TX_PWR_US_DEFAULT},
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{7, 2442, LBS_TX_PWR_US_DEFAULT},
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{8, 2447, LBS_TX_PWR_US_DEFAULT},
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{9, 2452, LBS_TX_PWR_US_DEFAULT},
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{10, 2457, LBS_TX_PWR_US_DEFAULT},
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{11, 2462, LBS_TX_PWR_US_DEFAULT}
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};
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/* band: 'B/G', region: Europe ETSI */
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static struct chan_freq_power channel_freq_power_EU_BG[] = {
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{1, 2412, LBS_TX_PWR_EMEA_DEFAULT},
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{2, 2417, LBS_TX_PWR_EMEA_DEFAULT},
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{3, 2422, LBS_TX_PWR_EMEA_DEFAULT},
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{4, 2427, LBS_TX_PWR_EMEA_DEFAULT},
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{5, 2432, LBS_TX_PWR_EMEA_DEFAULT},
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{6, 2437, LBS_TX_PWR_EMEA_DEFAULT},
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{7, 2442, LBS_TX_PWR_EMEA_DEFAULT},
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{8, 2447, LBS_TX_PWR_EMEA_DEFAULT},
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{9, 2452, LBS_TX_PWR_EMEA_DEFAULT},
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{10, 2457, LBS_TX_PWR_EMEA_DEFAULT},
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{11, 2462, LBS_TX_PWR_EMEA_DEFAULT},
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{12, 2467, LBS_TX_PWR_EMEA_DEFAULT},
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{13, 2472, LBS_TX_PWR_EMEA_DEFAULT}
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};
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/* band: 'B/G', region: Spain */
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static struct chan_freq_power channel_freq_power_SPN_BG[] = {
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{10, 2457, LBS_TX_PWR_DEFAULT},
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{11, 2462, LBS_TX_PWR_DEFAULT}
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};
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/* band: 'B/G', region: France */
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static struct chan_freq_power channel_freq_power_FR_BG[] = {
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{10, 2457, LBS_TX_PWR_FR_DEFAULT},
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{11, 2462, LBS_TX_PWR_FR_DEFAULT},
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{12, 2467, LBS_TX_PWR_FR_DEFAULT},
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{13, 2472, LBS_TX_PWR_FR_DEFAULT}
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};
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/* band: 'B/G', region: Japan */
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static struct chan_freq_power channel_freq_power_JPN_BG[] = {
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{1, 2412, LBS_TX_PWR_JP_DEFAULT},
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{2, 2417, LBS_TX_PWR_JP_DEFAULT},
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{3, 2422, LBS_TX_PWR_JP_DEFAULT},
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{4, 2427, LBS_TX_PWR_JP_DEFAULT},
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{5, 2432, LBS_TX_PWR_JP_DEFAULT},
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{6, 2437, LBS_TX_PWR_JP_DEFAULT},
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{7, 2442, LBS_TX_PWR_JP_DEFAULT},
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{8, 2447, LBS_TX_PWR_JP_DEFAULT},
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{9, 2452, LBS_TX_PWR_JP_DEFAULT},
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{10, 2457, LBS_TX_PWR_JP_DEFAULT},
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{11, 2462, LBS_TX_PWR_JP_DEFAULT},
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{12, 2467, LBS_TX_PWR_JP_DEFAULT},
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{13, 2472, LBS_TX_PWR_JP_DEFAULT},
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{14, 2484, LBS_TX_PWR_JP_DEFAULT}
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};
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/**
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* the structure for channel, frequency and power
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*/
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struct region_cfp_table {
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u8 region;
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struct chan_freq_power *cfp_BG;
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int cfp_no_BG;
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};
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/**
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* the structure for the mapping between region and CFP
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*/
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static struct region_cfp_table region_cfp_table[] = {
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{0x10, /*US FCC */
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channel_freq_power_US_BG,
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ARRAY_SIZE(channel_freq_power_US_BG),
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}
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,
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{0x20, /*CANADA IC */
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channel_freq_power_US_BG,
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ARRAY_SIZE(channel_freq_power_US_BG),
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}
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,
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{0x30, /*EU*/ channel_freq_power_EU_BG,
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ARRAY_SIZE(channel_freq_power_EU_BG),
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}
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,
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{0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
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ARRAY_SIZE(channel_freq_power_SPN_BG),
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}
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,
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{0x32, /*FRANCE*/ channel_freq_power_FR_BG,
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ARRAY_SIZE(channel_freq_power_FR_BG),
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}
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,
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{0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
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ARRAY_SIZE(channel_freq_power_JPN_BG),
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}
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,
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/*Add new region here */
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};
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/**
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* the table to keep region code
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*/
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u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
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{ 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
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/**
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* 802.11b/g supported bitrates (in 500Kb/s units)
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*/
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u8 lbs_bg_rates[MAX_RATES] =
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{ 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
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0x00, 0x00 };
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/**
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* FW rate table. FW refers to rates by their index in this table, not by the
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* rate value itself. Values of 0x00 are
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* reserved positions.
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*/
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static u8 fw_data_rates[MAX_RATES] =
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{ 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
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0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
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};
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/**
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* @brief use index to get the data rate
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*
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* @param idx The index of data rate
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* @return data rate or 0
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*/
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u32 lbs_fw_index_to_data_rate(u8 idx)
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{
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if (idx >= sizeof(fw_data_rates))
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idx = 0;
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return fw_data_rates[idx];
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}
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/**
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* @brief use rate to get the index
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*
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* @param rate data rate
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* @return index or 0
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*/
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u8 lbs_data_rate_to_fw_index(u32 rate)
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{
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u8 i;
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if (!rate)
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return 0;
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for (i = 0; i < sizeof(fw_data_rates); i++) {
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if (rate == fw_data_rates[i])
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return i;
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}
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return 0;
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}
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/**
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* Attributes exported through sysfs
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*/
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/**
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* @brief Get function for sysfs attribute anycast_mask
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*/
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static ssize_t lbs_anycast_get(struct device *dev,
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struct device_attribute *attr, char * buf)
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{
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struct lbs_private *priv = to_net_dev(dev)->priv;
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struct cmd_ds_mesh_access mesh_access;
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int ret;
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memset(&mesh_access, 0, sizeof(mesh_access));
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ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access);
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if (ret)
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return ret;
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return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
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}
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/**
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* @brief Set function for sysfs attribute anycast_mask
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*/
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static ssize_t lbs_anycast_set(struct device *dev,
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struct device_attribute *attr, const char * buf, size_t count)
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{
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struct lbs_private *priv = to_net_dev(dev)->priv;
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struct cmd_ds_mesh_access mesh_access;
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uint32_t datum;
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int ret;
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memset(&mesh_access, 0, sizeof(mesh_access));
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sscanf(buf, "%x", &datum);
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mesh_access.data[0] = cpu_to_le32(datum);
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ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access);
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if (ret)
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return ret;
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return strlen(buf);
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}
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static int lbs_add_rtap(struct lbs_private *priv);
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static void lbs_remove_rtap(struct lbs_private *priv);
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static int lbs_add_mesh(struct lbs_private *priv);
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static void lbs_remove_mesh(struct lbs_private *priv);
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/**
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* Get function for sysfs attribute rtap
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*/
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static ssize_t lbs_rtap_get(struct device *dev,
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struct device_attribute *attr, char * buf)
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{
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struct lbs_private *priv = to_net_dev(dev)->priv;
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return snprintf(buf, 5, "0x%X\n", priv->monitormode);
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}
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/**
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* Set function for sysfs attribute rtap
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*/
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static ssize_t lbs_rtap_set(struct device *dev,
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struct device_attribute *attr, const char * buf, size_t count)
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{
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int monitor_mode;
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struct lbs_private *priv = to_net_dev(dev)->priv;
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sscanf(buf, "%x", &monitor_mode);
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if (monitor_mode != LBS_MONITOR_OFF) {
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if(priv->monitormode == monitor_mode)
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return strlen(buf);
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if (priv->monitormode == LBS_MONITOR_OFF) {
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if (priv->infra_open || priv->mesh_open)
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return -EBUSY;
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if (priv->mode == IW_MODE_INFRA)
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lbs_send_deauthentication(priv);
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else if (priv->mode == IW_MODE_ADHOC)
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lbs_stop_adhoc_network(priv);
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lbs_add_rtap(priv);
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}
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priv->monitormode = monitor_mode;
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}
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else {
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if (priv->monitormode == LBS_MONITOR_OFF)
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return strlen(buf);
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priv->monitormode = LBS_MONITOR_OFF;
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lbs_remove_rtap(priv);
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if (priv->currenttxskb) {
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dev_kfree_skb_any(priv->currenttxskb);
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priv->currenttxskb = NULL;
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}
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/* Wake queues, command thread, etc. */
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lbs_host_to_card_done(priv);
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}
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lbs_prepare_and_send_command(priv,
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CMD_802_11_MONITOR_MODE, CMD_ACT_SET,
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CMD_OPTION_WAITFORRSP, 0, &priv->monitormode);
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return strlen(buf);
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}
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/**
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* lbs_rtap attribute to be exported per ethX interface
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* through sysfs (/sys/class/net/ethX/lbs_rtap)
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*/
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static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set );
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/**
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* Get function for sysfs attribute mesh
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*/
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static ssize_t lbs_mesh_get(struct device *dev,
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struct device_attribute *attr, char * buf)
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{
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struct lbs_private *priv = to_net_dev(dev)->priv;
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return snprintf(buf, 5, "0x%X\n", !!priv->mesh_dev);
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}
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/**
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* Set function for sysfs attribute mesh
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*/
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static ssize_t lbs_mesh_set(struct device *dev,
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struct device_attribute *attr, const char * buf, size_t count)
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{
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struct lbs_private *priv = to_net_dev(dev)->priv;
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int enable;
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int ret;
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sscanf(buf, "%x", &enable);
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enable = !!enable;
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if (enable == !!priv->mesh_dev)
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return count;
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ret = lbs_mesh_config(priv, enable);
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if (ret)
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return ret;
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if (enable)
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lbs_add_mesh(priv);
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else
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lbs_remove_mesh(priv);
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return count;
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}
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/**
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* lbs_mesh attribute to be exported per ethX interface
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* through sysfs (/sys/class/net/ethX/lbs_mesh)
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*/
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static DEVICE_ATTR(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set);
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/**
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* anycast_mask attribute to be exported per mshX interface
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* through sysfs (/sys/class/net/mshX/anycast_mask)
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*/
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static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set);
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static struct attribute *lbs_mesh_sysfs_entries[] = {
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&dev_attr_anycast_mask.attr,
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NULL,
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};
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static struct attribute_group lbs_mesh_attr_group = {
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.attrs = lbs_mesh_sysfs_entries,
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};
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/**
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* @brief This function opens the ethX or mshX interface
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*
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* @param dev A pointer to net_device structure
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* @return 0 or -EBUSY if monitor mode active
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*/
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static int lbs_dev_open(struct net_device *dev)
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{
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struct lbs_private *priv = (struct lbs_private *) dev->priv ;
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int ret = 0;
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spin_lock_irq(&priv->driver_lock);
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if (priv->monitormode != LBS_MONITOR_OFF) {
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ret = -EBUSY;
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goto out;
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}
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if (dev == priv->mesh_dev) {
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priv->mesh_open = 1;
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priv->mesh_connect_status = LBS_CONNECTED;
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netif_carrier_on(dev);
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} else {
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priv->infra_open = 1;
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if (priv->connect_status == LBS_CONNECTED)
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netif_carrier_on(dev);
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else
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netif_carrier_off(dev);
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}
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if (!priv->tx_pending_len)
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netif_wake_queue(dev);
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out:
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spin_unlock_irq(&priv->driver_lock);
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return ret;
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}
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/**
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* @brief This function closes the mshX interface
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*
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* @param dev A pointer to net_device structure
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* @return 0
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*/
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static int lbs_mesh_stop(struct net_device *dev)
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{
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struct lbs_private *priv = (struct lbs_private *) (dev->priv);
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spin_lock_irq(&priv->driver_lock);
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priv->mesh_open = 0;
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priv->mesh_connect_status = LBS_DISCONNECTED;
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netif_stop_queue(dev);
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netif_carrier_off(dev);
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spin_unlock_irq(&priv->driver_lock);
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return 0;
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}
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/**
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* @brief This function closes the ethX interface
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*
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* @param dev A pointer to net_device structure
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* @return 0
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*/
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static int lbs_eth_stop(struct net_device *dev)
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{
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struct lbs_private *priv = (struct lbs_private *) dev->priv;
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spin_lock_irq(&priv->driver_lock);
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priv->infra_open = 0;
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netif_stop_queue(dev);
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spin_unlock_irq(&priv->driver_lock);
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return 0;
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}
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static void lbs_tx_timeout(struct net_device *dev)
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{
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struct lbs_private *priv = (struct lbs_private *) dev->priv;
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lbs_deb_enter(LBS_DEB_TX);
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lbs_pr_err("tx watch dog timeout\n");
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dev->trans_start = jiffies;
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if (priv->currenttxskb) {
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priv->eventcause = 0x01000000;
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lbs_send_tx_feedback(priv);
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}
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/* XX: Shouldn't we also call into the hw-specific driver
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to kick it somehow? */
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lbs_host_to_card_done(priv);
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lbs_deb_leave(LBS_DEB_TX);
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}
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void lbs_host_to_card_done(struct lbs_private *priv)
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{
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unsigned long flags;
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spin_lock_irqsave(&priv->driver_lock, flags);
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priv->dnld_sent = DNLD_RES_RECEIVED;
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/* Wake main thread if commands are pending */
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if (!priv->cur_cmd || priv->tx_pending_len > 0)
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wake_up_interruptible(&priv->waitq);
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spin_unlock_irqrestore(&priv->driver_lock, flags);
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}
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EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
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/**
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* @brief This function returns the network statistics
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*
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* @param dev A pointer to struct lbs_private structure
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* @return A pointer to net_device_stats structure
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*/
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static struct net_device_stats *lbs_get_stats(struct net_device *dev)
|
|
{
|
|
struct lbs_private *priv = (struct lbs_private *) dev->priv;
|
|
|
|
return &priv->stats;
|
|
}
|
|
|
|
static int lbs_set_mac_address(struct net_device *dev, void *addr)
|
|
{
|
|
int ret = 0;
|
|
struct lbs_private *priv = (struct lbs_private *) dev->priv;
|
|
struct sockaddr *phwaddr = addr;
|
|
|
|
lbs_deb_enter(LBS_DEB_NET);
|
|
|
|
/* In case it was called from the mesh device */
|
|
dev = priv->dev ;
|
|
|
|
memset(priv->current_addr, 0, ETH_ALEN);
|
|
|
|
/* dev->dev_addr is 8 bytes */
|
|
lbs_deb_hex(LBS_DEB_NET, "dev->dev_addr", dev->dev_addr, ETH_ALEN);
|
|
|
|
lbs_deb_hex(LBS_DEB_NET, "addr", phwaddr->sa_data, ETH_ALEN);
|
|
memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
|
|
|
|
ret = lbs_prepare_and_send_command(priv, CMD_802_11_MAC_ADDRESS,
|
|
CMD_ACT_SET,
|
|
CMD_OPTION_WAITFORRSP, 0, NULL);
|
|
|
|
if (ret) {
|
|
lbs_deb_net("set MAC address failed\n");
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
|
|
lbs_deb_hex(LBS_DEB_NET, "priv->macaddr", priv->current_addr, ETH_ALEN);
|
|
memcpy(dev->dev_addr, priv->current_addr, ETH_ALEN);
|
|
if (priv->mesh_dev)
|
|
memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static int lbs_copy_multicast_address(struct lbs_private *priv,
|
|
struct net_device *dev)
|
|
{
|
|
int i = 0;
|
|
struct dev_mc_list *mcptr = dev->mc_list;
|
|
|
|
for (i = 0; i < dev->mc_count; i++) {
|
|
memcpy(&priv->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
|
|
mcptr = mcptr->next;
|
|
}
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
static void lbs_set_multicast_list(struct net_device *dev)
|
|
{
|
|
struct lbs_private *priv = dev->priv;
|
|
int oldpacketfilter;
|
|
DECLARE_MAC_BUF(mac);
|
|
|
|
lbs_deb_enter(LBS_DEB_NET);
|
|
|
|
oldpacketfilter = priv->currentpacketfilter;
|
|
|
|
if (dev->flags & IFF_PROMISC) {
|
|
lbs_deb_net("enable promiscuous mode\n");
|
|
priv->currentpacketfilter |=
|
|
CMD_ACT_MAC_PROMISCUOUS_ENABLE;
|
|
priv->currentpacketfilter &=
|
|
~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
|
|
CMD_ACT_MAC_MULTICAST_ENABLE);
|
|
} else {
|
|
/* Multicast */
|
|
priv->currentpacketfilter &=
|
|
~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
|
|
|
|
if (dev->flags & IFF_ALLMULTI || dev->mc_count >
|
|
MRVDRV_MAX_MULTICAST_LIST_SIZE) {
|
|
lbs_deb_net( "enabling all multicast\n");
|
|
priv->currentpacketfilter |=
|
|
CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
|
|
priv->currentpacketfilter &=
|
|
~CMD_ACT_MAC_MULTICAST_ENABLE;
|
|
} else {
|
|
priv->currentpacketfilter &=
|
|
~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
|
|
|
|
if (!dev->mc_count) {
|
|
lbs_deb_net("no multicast addresses, "
|
|
"disabling multicast\n");
|
|
priv->currentpacketfilter &=
|
|
~CMD_ACT_MAC_MULTICAST_ENABLE;
|
|
} else {
|
|
int i;
|
|
|
|
priv->currentpacketfilter |=
|
|
CMD_ACT_MAC_MULTICAST_ENABLE;
|
|
|
|
priv->nr_of_multicastmacaddr =
|
|
lbs_copy_multicast_address(priv, dev);
|
|
|
|
lbs_deb_net("multicast addresses: %d\n",
|
|
dev->mc_count);
|
|
|
|
for (i = 0; i < dev->mc_count; i++) {
|
|
lbs_deb_net("Multicast address %d:%s\n",
|
|
i, print_mac(mac,
|
|
priv->multicastlist[i]));
|
|
}
|
|
/* send multicast addresses to firmware */
|
|
lbs_prepare_and_send_command(priv,
|
|
CMD_MAC_MULTICAST_ADR,
|
|
CMD_ACT_SET, 0, 0,
|
|
NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (priv->currentpacketfilter != oldpacketfilter) {
|
|
lbs_set_mac_packet_filter(priv);
|
|
}
|
|
|
|
lbs_deb_leave(LBS_DEB_NET);
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles the major jobs in the LBS driver.
|
|
* It handles all events generated by firmware, RX data received
|
|
* from firmware and TX data sent from kernel.
|
|
*
|
|
* @param data A pointer to lbs_thread structure
|
|
* @return 0
|
|
*/
|
|
static int lbs_thread(void *data)
|
|
{
|
|
struct net_device *dev = data;
|
|
struct lbs_private *priv = dev->priv;
|
|
wait_queue_t wait;
|
|
u8 ireg = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_THREAD);
|
|
|
|
init_waitqueue_entry(&wait, current);
|
|
|
|
for (;;) {
|
|
int shouldsleep;
|
|
|
|
lbs_deb_thread( "main-thread 111: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
|
|
priv->intcounter, priv->currenttxskb, priv->dnld_sent);
|
|
|
|
add_wait_queue(&priv->waitq, &wait);
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
spin_lock_irq(&priv->driver_lock);
|
|
|
|
if (priv->surpriseremoved)
|
|
shouldsleep = 0; /* Bye */
|
|
else if (priv->psstate == PS_STATE_SLEEP)
|
|
shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */
|
|
else if (priv->intcounter)
|
|
shouldsleep = 0; /* Interrupt pending. Deal with it now */
|
|
else if (!priv->fw_ready)
|
|
shouldsleep = 1; /* Firmware not ready. We're waiting for it */
|
|
else if (priv->dnld_sent)
|
|
shouldsleep = 1; /* Something is en route to the device already */
|
|
else if (priv->tx_pending_len > 0)
|
|
shouldsleep = 0; /* We've a packet to send */
|
|
else if (priv->cur_cmd)
|
|
shouldsleep = 1; /* Can't send a command; one already running */
|
|
else if (!list_empty(&priv->cmdpendingq))
|
|
shouldsleep = 0; /* We have a command to send */
|
|
else
|
|
shouldsleep = 1; /* No command */
|
|
|
|
if (shouldsleep) {
|
|
lbs_deb_thread("main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
|
|
priv->connect_status, priv->intcounter,
|
|
priv->psmode, priv->psstate);
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
schedule();
|
|
} else
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
|
|
lbs_deb_thread("main-thread 222 (waking up): intcounter=%d currenttxskb=%p dnld_sent=%d\n",
|
|
priv->intcounter, priv->currenttxskb, priv->dnld_sent);
|
|
|
|
set_current_state(TASK_RUNNING);
|
|
remove_wait_queue(&priv->waitq, &wait);
|
|
|
|
lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
|
|
priv->intcounter, priv->currenttxskb, priv->dnld_sent);
|
|
|
|
if (kthread_should_stop() || priv->surpriseremoved) {
|
|
lbs_deb_thread("main-thread: break from main thread: surpriseremoved=0x%x\n",
|
|
priv->surpriseremoved);
|
|
break;
|
|
}
|
|
|
|
|
|
spin_lock_irq(&priv->driver_lock);
|
|
|
|
if (priv->intcounter) {
|
|
u8 int_status;
|
|
|
|
priv->intcounter = 0;
|
|
int_status = priv->hw_get_int_status(priv, &ireg);
|
|
|
|
if (int_status) {
|
|
lbs_deb_thread("main-thread: reading HOST_INT_STATUS_REG failed\n");
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
continue;
|
|
}
|
|
priv->hisregcpy |= ireg;
|
|
}
|
|
|
|
lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
|
|
priv->intcounter, priv->currenttxskb, priv->dnld_sent);
|
|
|
|
/* command response? */
|
|
if (priv->hisregcpy & MRVDRV_CMD_UPLD_RDY) {
|
|
lbs_deb_thread("main-thread: cmd response ready\n");
|
|
|
|
priv->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
lbs_process_rx_command(priv);
|
|
spin_lock_irq(&priv->driver_lock);
|
|
}
|
|
|
|
/* Any Card Event */
|
|
if (priv->hisregcpy & MRVDRV_CARDEVENT) {
|
|
lbs_deb_thread("main-thread: Card Event Activity\n");
|
|
|
|
priv->hisregcpy &= ~MRVDRV_CARDEVENT;
|
|
|
|
if (priv->hw_read_event_cause(priv)) {
|
|
lbs_pr_alert("main-thread: hw_read_event_cause failed\n");
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
continue;
|
|
}
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
lbs_process_event(priv);
|
|
} else
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
|
|
if (!priv->fw_ready)
|
|
continue;
|
|
|
|
/* Check if we need to confirm Sleep Request received previously */
|
|
if (priv->psstate == PS_STATE_PRE_SLEEP &&
|
|
!priv->dnld_sent && !priv->cur_cmd) {
|
|
if (priv->connect_status == LBS_CONNECTED) {
|
|
lbs_deb_thread("main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p dnld_sent=%d cur_cmd=%p, confirm now\n",
|
|
priv->intcounter, priv->currenttxskb, priv->dnld_sent, priv->cur_cmd);
|
|
|
|
lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
|
|
} else {
|
|
/* workaround for firmware sending
|
|
* deauth/linkloss event immediately
|
|
* after sleep request; remove this
|
|
* after firmware fixes it
|
|
*/
|
|
priv->psstate = PS_STATE_AWAKE;
|
|
lbs_pr_alert("main-thread: ignore PS_SleepConfirm in non-connected state\n");
|
|
}
|
|
}
|
|
|
|
/* The PS state is changed during processing of Sleep Request
|
|
* event above
|
|
*/
|
|
if ((priv->psstate == PS_STATE_SLEEP) ||
|
|
(priv->psstate == PS_STATE_PRE_SLEEP))
|
|
continue;
|
|
|
|
/* Execute the next command */
|
|
if (!priv->dnld_sent && !priv->cur_cmd)
|
|
lbs_execute_next_command(priv);
|
|
|
|
/* Wake-up command waiters which can't sleep in
|
|
* lbs_prepare_and_send_command
|
|
*/
|
|
if (!list_empty(&priv->cmdpendingq))
|
|
wake_up_all(&priv->cmd_pending);
|
|
|
|
spin_lock_irq(&priv->driver_lock);
|
|
if (!priv->dnld_sent && priv->tx_pending_len > 0) {
|
|
int ret = priv->hw_host_to_card(priv, MVMS_DAT,
|
|
priv->tx_pending_buf,
|
|
priv->tx_pending_len);
|
|
if (ret) {
|
|
lbs_deb_tx("host_to_card failed %d\n", ret);
|
|
priv->dnld_sent = DNLD_RES_RECEIVED;
|
|
}
|
|
priv->tx_pending_len = 0;
|
|
if (!priv->currenttxskb) {
|
|
/* We can wake the queues immediately if we aren't
|
|
waiting for TX feedback */
|
|
if (priv->connect_status == LBS_CONNECTED)
|
|
netif_wake_queue(priv->dev);
|
|
if (priv->mesh_dev &&
|
|
priv->mesh_connect_status == LBS_CONNECTED)
|
|
netif_wake_queue(priv->mesh_dev);
|
|
}
|
|
}
|
|
spin_unlock_irq(&priv->driver_lock);
|
|
}
|
|
|
|
del_timer(&priv->command_timer);
|
|
wake_up_all(&priv->cmd_pending);
|
|
|
|
lbs_deb_leave(LBS_DEB_THREAD);
|
|
return 0;
|
|
}
|
|
|
|
static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy,
|
|
struct cmd_header *cmd)
|
|
{
|
|
lbs_deb_fw("HOST_SLEEP_ACTIVATE succeeded\n");
|
|
|
|
netif_device_detach(priv->dev);
|
|
if (priv->mesh_dev)
|
|
netif_device_detach(priv->mesh_dev);
|
|
|
|
priv->fw_ready = 0;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int lbs_suspend(struct lbs_private *priv)
|
|
{
|
|
struct cmd_header cmd;
|
|
int ret;
|
|
|
|
if (priv->wol_criteria == 0xffffffff) {
|
|
lbs_pr_info("Suspend attempt without configuring wake params!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
|
|
ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd,
|
|
sizeof(cmd), lbs_suspend_callback, 0);
|
|
if (ret)
|
|
lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_suspend);
|
|
|
|
int lbs_resume(struct lbs_private *priv)
|
|
{
|
|
priv->fw_ready = 1;
|
|
|
|
/* Firmware doesn't seem to give us RX packets any more
|
|
until we send it some command. Might as well update */
|
|
lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
|
|
0, 0, NULL);
|
|
|
|
netif_device_attach(priv->dev);
|
|
if (priv->mesh_dev)
|
|
netif_device_attach(priv->mesh_dev);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_resume);
|
|
|
|
/**
|
|
* @brief This function downloads firmware image, gets
|
|
* HW spec from firmware and set basic parameters to
|
|
* firmware.
|
|
*
|
|
* @param priv A pointer to struct lbs_private structure
|
|
* @return 0 or -1
|
|
*/
|
|
static int lbs_setup_firmware(struct lbs_private *priv)
|
|
{
|
|
int ret = -1;
|
|
|
|
lbs_deb_enter(LBS_DEB_FW);
|
|
|
|
/*
|
|
* Read MAC address from HW
|
|
*/
|
|
memset(priv->current_addr, 0xff, ETH_ALEN);
|
|
ret = lbs_update_hw_spec(priv);
|
|
if (ret) {
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
|
|
lbs_set_mac_packet_filter(priv);
|
|
|
|
ret = lbs_get_data_rate(priv);
|
|
if (ret < 0) {
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
|
|
ret = 0;
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* This function handles the timeout of command sending.
|
|
* It will re-send the same command again.
|
|
*/
|
|
static void command_timer_fn(unsigned long data)
|
|
{
|
|
struct lbs_private *priv = (struct lbs_private *)data;
|
|
struct cmd_ctrl_node *node;
|
|
unsigned long flags;
|
|
|
|
node = priv->cur_cmd;
|
|
if (node == NULL) {
|
|
lbs_deb_fw("ptempnode empty\n");
|
|
return;
|
|
}
|
|
|
|
if (!node->cmdbuf) {
|
|
lbs_deb_fw("cmd is NULL\n");
|
|
return;
|
|
}
|
|
|
|
lbs_pr_info("command %x timed out\n", le16_to_cpu(node->cmdbuf->command));
|
|
|
|
if (!priv->fw_ready)
|
|
return;
|
|
|
|
spin_lock_irqsave(&priv->driver_lock, flags);
|
|
priv->cur_cmd = NULL;
|
|
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
|
|
|
lbs_deb_fw("re-sending same command because of timeout\n");
|
|
lbs_queue_cmd(priv, node, 0);
|
|
|
|
wake_up_interruptible(&priv->waitq);
|
|
|
|
return;
|
|
}
|
|
|
|
static int lbs_init_adapter(struct lbs_private *priv)
|
|
{
|
|
size_t bufsize;
|
|
int i, ret = 0;
|
|
|
|
/* Allocate buffer to store the BSSID list */
|
|
bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
|
|
priv->networks = kzalloc(bufsize, GFP_KERNEL);
|
|
if (!priv->networks) {
|
|
lbs_pr_err("Out of memory allocating beacons\n");
|
|
ret = -1;
|
|
goto out;
|
|
}
|
|
|
|
/* Initialize scan result lists */
|
|
INIT_LIST_HEAD(&priv->network_free_list);
|
|
INIT_LIST_HEAD(&priv->network_list);
|
|
for (i = 0; i < MAX_NETWORK_COUNT; i++) {
|
|
list_add_tail(&priv->networks[i].list,
|
|
&priv->network_free_list);
|
|
}
|
|
|
|
priv->lbs_ps_confirm_sleep.seqnum = cpu_to_le16(++priv->seqnum);
|
|
priv->lbs_ps_confirm_sleep.command =
|
|
cpu_to_le16(CMD_802_11_PS_MODE);
|
|
priv->lbs_ps_confirm_sleep.size =
|
|
cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
|
|
priv->lbs_ps_confirm_sleep.action =
|
|
cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
|
|
|
|
memset(priv->current_addr, 0xff, ETH_ALEN);
|
|
|
|
priv->connect_status = LBS_DISCONNECTED;
|
|
priv->mesh_connect_status = LBS_DISCONNECTED;
|
|
priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
|
|
priv->mode = IW_MODE_INFRA;
|
|
priv->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
|
|
priv->currentpacketfilter = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
|
|
priv->radioon = RADIO_ON;
|
|
priv->auto_rate = 1;
|
|
priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
|
|
priv->psmode = LBS802_11POWERMODECAM;
|
|
priv->psstate = PS_STATE_FULL_POWER;
|
|
|
|
mutex_init(&priv->lock);
|
|
|
|
setup_timer(&priv->command_timer, command_timer_fn,
|
|
(unsigned long)priv);
|
|
|
|
INIT_LIST_HEAD(&priv->cmdfreeq);
|
|
INIT_LIST_HEAD(&priv->cmdpendingq);
|
|
|
|
spin_lock_init(&priv->driver_lock);
|
|
init_waitqueue_head(&priv->cmd_pending);
|
|
|
|
/* Allocate the command buffers */
|
|
if (lbs_allocate_cmd_buffer(priv)) {
|
|
lbs_pr_err("Out of memory allocating command buffers\n");
|
|
ret = -1;
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static void lbs_free_adapter(struct lbs_private *priv)
|
|
{
|
|
lbs_deb_fw("free command buffer\n");
|
|
lbs_free_cmd_buffer(priv);
|
|
|
|
lbs_deb_fw("free command_timer\n");
|
|
del_timer(&priv->command_timer);
|
|
|
|
lbs_deb_fw("free scan results table\n");
|
|
kfree(priv->networks);
|
|
priv->networks = NULL;
|
|
}
|
|
|
|
/**
|
|
* @brief This function adds the card. it will probe the
|
|
* card, allocate the lbs_priv and initialize the device.
|
|
*
|
|
* @param card A pointer to card
|
|
* @return A pointer to struct lbs_private structure
|
|
*/
|
|
struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
|
|
{
|
|
struct net_device *dev = NULL;
|
|
struct lbs_private *priv = NULL;
|
|
|
|
lbs_deb_enter(LBS_DEB_NET);
|
|
|
|
/* Allocate an Ethernet device and register it */
|
|
dev = alloc_etherdev(sizeof(struct lbs_private));
|
|
if (!dev) {
|
|
lbs_pr_err("init ethX device failed\n");
|
|
goto done;
|
|
}
|
|
priv = dev->priv;
|
|
|
|
if (lbs_init_adapter(priv)) {
|
|
lbs_pr_err("failed to initialize adapter structure.\n");
|
|
goto err_init_adapter;
|
|
}
|
|
|
|
priv->dev = dev;
|
|
priv->card = card;
|
|
priv->mesh_open = 0;
|
|
priv->infra_open = 0;
|
|
|
|
/* Setup the OS Interface to our functions */
|
|
dev->open = lbs_dev_open;
|
|
dev->hard_start_xmit = lbs_hard_start_xmit;
|
|
dev->stop = lbs_eth_stop;
|
|
dev->set_mac_address = lbs_set_mac_address;
|
|
dev->tx_timeout = lbs_tx_timeout;
|
|
dev->get_stats = lbs_get_stats;
|
|
dev->watchdog_timeo = 5 * HZ;
|
|
dev->ethtool_ops = &lbs_ethtool_ops;
|
|
#ifdef WIRELESS_EXT
|
|
dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def;
|
|
#endif
|
|
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
|
|
dev->set_multicast_list = lbs_set_multicast_list;
|
|
|
|
SET_NETDEV_DEV(dev, dmdev);
|
|
|
|
priv->rtap_net_dev = NULL;
|
|
|
|
lbs_deb_thread("Starting main thread...\n");
|
|
init_waitqueue_head(&priv->waitq);
|
|
priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
|
|
if (IS_ERR(priv->main_thread)) {
|
|
lbs_deb_thread("Error creating main thread.\n");
|
|
goto err_init_adapter;
|
|
}
|
|
|
|
priv->work_thread = create_singlethread_workqueue("lbs_worker");
|
|
INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
|
|
INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
|
|
INIT_WORK(&priv->sync_channel, lbs_sync_channel);
|
|
|
|
sprintf(priv->mesh_ssid, "mesh");
|
|
priv->mesh_ssid_len = 4;
|
|
|
|
priv->wol_criteria = 0xffffffff;
|
|
priv->wol_gpio = 0xff;
|
|
|
|
goto done;
|
|
|
|
err_init_adapter:
|
|
lbs_free_adapter(priv);
|
|
free_netdev(dev);
|
|
priv = NULL;
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
|
|
return priv;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_add_card);
|
|
|
|
|
|
int lbs_remove_card(struct lbs_private *priv)
|
|
{
|
|
struct net_device *dev = priv->dev;
|
|
union iwreq_data wrqu;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
lbs_remove_mesh(priv);
|
|
lbs_remove_rtap(priv);
|
|
|
|
dev = priv->dev;
|
|
|
|
cancel_delayed_work(&priv->scan_work);
|
|
cancel_delayed_work(&priv->assoc_work);
|
|
destroy_workqueue(priv->work_thread);
|
|
|
|
if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
|
|
priv->psmode = LBS802_11POWERMODECAM;
|
|
lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
|
|
}
|
|
|
|
memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
|
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
|
|
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
|
|
|
|
/* Stop the thread servicing the interrupts */
|
|
priv->surpriseremoved = 1;
|
|
kthread_stop(priv->main_thread);
|
|
|
|
lbs_free_adapter(priv);
|
|
|
|
priv->dev = NULL;
|
|
free_netdev(dev);
|
|
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_remove_card);
|
|
|
|
|
|
int lbs_start_card(struct lbs_private *priv)
|
|
{
|
|
struct net_device *dev = priv->dev;
|
|
int ret = -1;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
/* poke the firmware */
|
|
ret = lbs_setup_firmware(priv);
|
|
if (ret)
|
|
goto done;
|
|
|
|
/* init 802.11d */
|
|
lbs_init_11d(priv);
|
|
|
|
if (register_netdev(dev)) {
|
|
lbs_pr_err("cannot register ethX device\n");
|
|
goto done;
|
|
}
|
|
if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
|
|
lbs_pr_err("cannot register lbs_rtap attribute\n");
|
|
|
|
/* Enable mesh, if supported, and work out which TLV it uses.
|
|
0x100 + 291 is an unofficial value used in 5.110.20.pXX
|
|
0x100 + 37 is the official value used in 5.110.21.pXX
|
|
but we check them in that order because 20.pXX doesn't
|
|
give an error -- it just silently fails. */
|
|
|
|
/* 5.110.20.pXX firmware will fail the command if the channel
|
|
doesn't match the existing channel. But only if the TLV
|
|
is correct. If the channel is wrong, _BOTH_ versions will
|
|
give an error to 0x100+291, and allow 0x100+37 to succeed.
|
|
It's just that 5.110.20.pXX will not have done anything
|
|
useful */
|
|
|
|
lbs_update_channel(priv);
|
|
priv->mesh_tlv = 0x100 + 291;
|
|
if (lbs_mesh_config(priv, 1)) {
|
|
priv->mesh_tlv = 0x100 + 37;
|
|
if (lbs_mesh_config(priv, 1))
|
|
priv->mesh_tlv = 0;
|
|
}
|
|
if (priv->mesh_tlv) {
|
|
lbs_add_mesh(priv);
|
|
|
|
if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
|
|
lbs_pr_err("cannot register lbs_mesh attribute\n");
|
|
}
|
|
|
|
lbs_debugfs_init_one(priv, dev);
|
|
|
|
lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
|
|
|
|
ret = 0;
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_start_card);
|
|
|
|
|
|
int lbs_stop_card(struct lbs_private *priv)
|
|
{
|
|
struct net_device *dev = priv->dev;
|
|
int ret = -1;
|
|
struct cmd_ctrl_node *cmdnode;
|
|
unsigned long flags;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
netif_stop_queue(priv->dev);
|
|
netif_carrier_off(priv->dev);
|
|
|
|
lbs_debugfs_remove_one(priv);
|
|
device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
|
|
if (priv->mesh_tlv)
|
|
device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
|
|
|
|
/* Flush pending command nodes */
|
|
spin_lock_irqsave(&priv->driver_lock, flags);
|
|
list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
|
|
cmdnode->cmdwaitqwoken = 1;
|
|
wake_up_interruptible(&cmdnode->cmdwait_q);
|
|
}
|
|
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
|
|
|
unregister_netdev(dev);
|
|
|
|
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_stop_card);
|
|
|
|
|
|
/**
|
|
* @brief This function adds mshX interface
|
|
*
|
|
* @param priv A pointer to the struct lbs_private structure
|
|
* @return 0 if successful, -X otherwise
|
|
*/
|
|
static int lbs_add_mesh(struct lbs_private *priv)
|
|
{
|
|
struct net_device *mesh_dev = NULL;
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_MESH);
|
|
|
|
/* Allocate a virtual mesh device */
|
|
if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
|
|
lbs_deb_mesh("init mshX device failed\n");
|
|
ret = -ENOMEM;
|
|
goto done;
|
|
}
|
|
mesh_dev->priv = priv;
|
|
priv->mesh_dev = mesh_dev;
|
|
|
|
mesh_dev->open = lbs_dev_open;
|
|
mesh_dev->hard_start_xmit = lbs_hard_start_xmit;
|
|
mesh_dev->stop = lbs_mesh_stop;
|
|
mesh_dev->get_stats = lbs_get_stats;
|
|
mesh_dev->set_mac_address = lbs_set_mac_address;
|
|
mesh_dev->ethtool_ops = &lbs_ethtool_ops;
|
|
memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
|
|
sizeof(priv->dev->dev_addr));
|
|
|
|
SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
|
|
|
|
#ifdef WIRELESS_EXT
|
|
mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
|
|
#endif
|
|
/* Register virtual mesh interface */
|
|
ret = register_netdev(mesh_dev);
|
|
if (ret) {
|
|
lbs_pr_err("cannot register mshX virtual interface\n");
|
|
goto err_free;
|
|
}
|
|
|
|
ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
|
|
if (ret)
|
|
goto err_unregister;
|
|
|
|
/* Everything successful */
|
|
ret = 0;
|
|
goto done;
|
|
|
|
err_unregister:
|
|
unregister_netdev(mesh_dev);
|
|
|
|
err_free:
|
|
free_netdev(mesh_dev);
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_add_mesh);
|
|
|
|
|
|
static void lbs_remove_mesh(struct lbs_private *priv)
|
|
{
|
|
struct net_device *mesh_dev;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
if (!priv)
|
|
goto out;
|
|
|
|
mesh_dev = priv->mesh_dev;
|
|
if (!mesh_dev)
|
|
goto out;
|
|
|
|
netif_stop_queue(mesh_dev);
|
|
netif_carrier_off(priv->mesh_dev);
|
|
|
|
sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
|
|
unregister_netdev(mesh_dev);
|
|
|
|
priv->mesh_dev = NULL;
|
|
free_netdev(mesh_dev);
|
|
|
|
out:
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_remove_mesh);
|
|
|
|
/**
|
|
* @brief This function finds the CFP in
|
|
* region_cfp_table based on region and band parameter.
|
|
*
|
|
* @param region The region code
|
|
* @param band The band
|
|
* @param cfp_no A pointer to CFP number
|
|
* @return A pointer to CFP
|
|
*/
|
|
struct chan_freq_power *lbs_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
|
|
{
|
|
int i, end;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
end = ARRAY_SIZE(region_cfp_table);
|
|
|
|
for (i = 0; i < end ; i++) {
|
|
lbs_deb_main("region_cfp_table[i].region=%d\n",
|
|
region_cfp_table[i].region);
|
|
if (region_cfp_table[i].region == region) {
|
|
*cfp_no = region_cfp_table[i].cfp_no_BG;
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
return region_cfp_table[i].cfp_BG;
|
|
}
|
|
}
|
|
|
|
lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
|
|
return NULL;
|
|
}
|
|
|
|
int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band)
|
|
{
|
|
int ret = 0;
|
|
int i = 0;
|
|
|
|
struct chan_freq_power *cfp;
|
|
int cfp_no;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
memset(priv->region_channel, 0, sizeof(priv->region_channel));
|
|
|
|
{
|
|
cfp = lbs_get_region_cfp_table(region, band, &cfp_no);
|
|
if (cfp != NULL) {
|
|
priv->region_channel[i].nrcfp = cfp_no;
|
|
priv->region_channel[i].CFP = cfp;
|
|
} else {
|
|
lbs_deb_main("wrong region code %#x in band B/G\n",
|
|
region);
|
|
ret = -1;
|
|
goto out;
|
|
}
|
|
priv->region_channel[i].valid = 1;
|
|
priv->region_channel[i].region = region;
|
|
priv->region_channel[i].band = band;
|
|
i++;
|
|
}
|
|
out:
|
|
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles the interrupt. it will change PS
|
|
* state if applicable. it will wake up main_thread to handle
|
|
* the interrupt event as well.
|
|
*
|
|
* @param dev A pointer to net_device structure
|
|
* @return n/a
|
|
*/
|
|
void lbs_interrupt(struct lbs_private *priv)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_THREAD);
|
|
|
|
lbs_deb_thread("lbs_interrupt: intcounter=%d\n", priv->intcounter);
|
|
|
|
if (spin_trylock(&priv->driver_lock)) {
|
|
spin_unlock(&priv->driver_lock);
|
|
printk(KERN_CRIT "%s called without driver_lock held\n", __func__);
|
|
WARN_ON(1);
|
|
}
|
|
|
|
priv->intcounter++;
|
|
|
|
if (priv->psstate == PS_STATE_SLEEP)
|
|
priv->psstate = PS_STATE_AWAKE;
|
|
|
|
wake_up_interruptible(&priv->waitq);
|
|
|
|
lbs_deb_leave(LBS_DEB_THREAD);
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_interrupt);
|
|
|
|
int lbs_reset_device(struct lbs_private *priv)
|
|
{
|
|
int ret;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
ret = lbs_prepare_and_send_command(priv, CMD_802_11_RESET,
|
|
CMD_ACT_HALT, 0, 0, NULL);
|
|
msleep_interruptible(10);
|
|
|
|
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbs_reset_device);
|
|
|
|
static int __init lbs_init_module(void)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
lbs_debugfs_init();
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit lbs_exit_module(void)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
lbs_debugfs_remove();
|
|
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
}
|
|
|
|
/*
|
|
* rtap interface support fuctions
|
|
*/
|
|
|
|
static int lbs_rtap_open(struct net_device *dev)
|
|
{
|
|
/* Yes, _stop_ the queue. Because we don't support injection */
|
|
netif_carrier_off(dev);
|
|
netif_stop_queue(dev);
|
|
return 0;
|
|
}
|
|
|
|
static int lbs_rtap_stop(struct net_device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
netif_stop_queue(dev);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
|
|
static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev)
|
|
{
|
|
struct lbs_private *priv = dev->priv;
|
|
return &priv->stats;
|
|
}
|
|
|
|
|
|
static void lbs_remove_rtap(struct lbs_private *priv)
|
|
{
|
|
if (priv->rtap_net_dev == NULL)
|
|
return;
|
|
unregister_netdev(priv->rtap_net_dev);
|
|
free_netdev(priv->rtap_net_dev);
|
|
priv->rtap_net_dev = NULL;
|
|
}
|
|
|
|
static int lbs_add_rtap(struct lbs_private *priv)
|
|
{
|
|
int rc = 0;
|
|
struct net_device *rtap_dev;
|
|
|
|
if (priv->rtap_net_dev)
|
|
return -EPERM;
|
|
|
|
rtap_dev = alloc_netdev(0, "rtap%d", ether_setup);
|
|
if (rtap_dev == NULL)
|
|
return -ENOMEM;
|
|
|
|
memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN);
|
|
rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
|
|
rtap_dev->open = lbs_rtap_open;
|
|
rtap_dev->stop = lbs_rtap_stop;
|
|
rtap_dev->get_stats = lbs_rtap_get_stats;
|
|
rtap_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
|
|
rtap_dev->set_multicast_list = lbs_set_multicast_list;
|
|
rtap_dev->priv = priv;
|
|
|
|
rc = register_netdev(rtap_dev);
|
|
if (rc) {
|
|
free_netdev(rtap_dev);
|
|
return rc;
|
|
}
|
|
priv->rtap_net_dev = rtap_dev;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
module_init(lbs_init_module);
|
|
module_exit(lbs_exit_module);
|
|
|
|
MODULE_DESCRIPTION("Libertas WLAN Driver Library");
|
|
MODULE_AUTHOR("Marvell International Ltd.");
|
|
MODULE_LICENSE("GPL");
|