mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
7732ca45c6
Move usage of SET_NETDEV_DEV into common code since it has nothing to do with bus-specific devices. Also fixes a bug where the mesh device was getting SET_NETDEV_DEV called after register_netdevice, resulting in no 'device' link in /sys/class/net/mshX/. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1177 lines
29 KiB
C
1177 lines
29 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/freezer.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 <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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#define DRIVER_RELEASE_VERSION "320.p0"
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const char libertas_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 libertas_debug = 0;
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module_param(libertas_debug, int, 0644);
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EXPORT_SYMBOL_GPL(libertas_debug);
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#define WLAN_TX_PWR_DEFAULT 20 /*100mW */
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#define WLAN_TX_PWR_US_DEFAULT 20 /*100mW */
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#define WLAN_TX_PWR_JP_DEFAULT 16 /*50mW */
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#define WLAN_TX_PWR_FR_DEFAULT 20 /*100mW */
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#define WLAN_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, WLAN_TX_PWR_US_DEFAULT},
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{2, 2417, WLAN_TX_PWR_US_DEFAULT},
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{3, 2422, WLAN_TX_PWR_US_DEFAULT},
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{4, 2427, WLAN_TX_PWR_US_DEFAULT},
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{5, 2432, WLAN_TX_PWR_US_DEFAULT},
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{6, 2437, WLAN_TX_PWR_US_DEFAULT},
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{7, 2442, WLAN_TX_PWR_US_DEFAULT},
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{8, 2447, WLAN_TX_PWR_US_DEFAULT},
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{9, 2452, WLAN_TX_PWR_US_DEFAULT},
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{10, 2457, WLAN_TX_PWR_US_DEFAULT},
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{11, 2462, WLAN_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, WLAN_TX_PWR_EMEA_DEFAULT},
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{2, 2417, WLAN_TX_PWR_EMEA_DEFAULT},
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{3, 2422, WLAN_TX_PWR_EMEA_DEFAULT},
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{4, 2427, WLAN_TX_PWR_EMEA_DEFAULT},
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{5, 2432, WLAN_TX_PWR_EMEA_DEFAULT},
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{6, 2437, WLAN_TX_PWR_EMEA_DEFAULT},
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{7, 2442, WLAN_TX_PWR_EMEA_DEFAULT},
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{8, 2447, WLAN_TX_PWR_EMEA_DEFAULT},
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{9, 2452, WLAN_TX_PWR_EMEA_DEFAULT},
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{10, 2457, WLAN_TX_PWR_EMEA_DEFAULT},
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{11, 2462, WLAN_TX_PWR_EMEA_DEFAULT},
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{12, 2467, WLAN_TX_PWR_EMEA_DEFAULT},
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{13, 2472, WLAN_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, WLAN_TX_PWR_DEFAULT},
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{11, 2462, WLAN_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, WLAN_TX_PWR_FR_DEFAULT},
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{11, 2462, WLAN_TX_PWR_FR_DEFAULT},
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{12, 2467, WLAN_TX_PWR_FR_DEFAULT},
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{13, 2472, WLAN_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, WLAN_TX_PWR_JP_DEFAULT},
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{2, 2417, WLAN_TX_PWR_JP_DEFAULT},
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{3, 2422, WLAN_TX_PWR_JP_DEFAULT},
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{4, 2427, WLAN_TX_PWR_JP_DEFAULT},
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{5, 2432, WLAN_TX_PWR_JP_DEFAULT},
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{6, 2437, WLAN_TX_PWR_JP_DEFAULT},
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{7, 2442, WLAN_TX_PWR_JP_DEFAULT},
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{8, 2447, WLAN_TX_PWR_JP_DEFAULT},
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{9, 2452, WLAN_TX_PWR_JP_DEFAULT},
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{10, 2457, WLAN_TX_PWR_JP_DEFAULT},
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{11, 2462, WLAN_TX_PWR_JP_DEFAULT},
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{12, 2467, WLAN_TX_PWR_JP_DEFAULT},
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{13, 2472, WLAN_TX_PWR_JP_DEFAULT},
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{14, 2484, WLAN_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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sizeof(channel_freq_power_US_BG) / sizeof(struct chan_freq_power),
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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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sizeof(channel_freq_power_US_BG) / sizeof(struct chan_freq_power),
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}
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,
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{0x30, /*EU*/ channel_freq_power_EU_BG,
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sizeof(channel_freq_power_EU_BG) / sizeof(struct chan_freq_power),
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}
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,
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{0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
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sizeof(channel_freq_power_SPN_BG) / sizeof(struct chan_freq_power),
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}
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,
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{0x32, /*FRANCE*/ channel_freq_power_FR_BG,
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sizeof(channel_freq_power_FR_BG) / sizeof(struct chan_freq_power),
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}
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,
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{0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
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sizeof(channel_freq_power_JPN_BG) / sizeof(struct chan_freq_power),
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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 rates supported
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*/
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u8 libertas_supported_rates[G_SUPPORTED_RATES] =
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{ 0x82, 0x84, 0x8b, 0x96, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
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0 };
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/**
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* the rates supported for ad-hoc G mode
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*/
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u8 libertas_adhoc_rates_g[G_SUPPORTED_RATES] =
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{ 0x82, 0x84, 0x8b, 0x96, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
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0 };
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/**
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* the rates supported for ad-hoc B mode
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*/
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u8 libertas_adhoc_rates_b[4] = { 0x82, 0x84, 0x8b, 0x96 };
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/**
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* the table to keep region code
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*/
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u16 libertas_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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* Attributes exported through sysfs
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*/
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/**
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* @brief Get function for sysfs attribute libertas_mpp
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*/
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static ssize_t libertas_mpp_get(struct device * dev,
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struct device_attribute *attr, char * buf) {
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struct cmd_ds_mesh_access mesh_access;
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memset(&mesh_access, 0, sizeof(mesh_access));
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libertas_prepare_and_send_command(to_net_dev(dev)->priv,
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cmd_mesh_access,
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cmd_act_mesh_get_mpp,
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cmd_option_waitforrsp, 0, (void *)&mesh_access);
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return snprintf(buf, 3, "%d\n", mesh_access.data[0]);
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}
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/**
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* @brief Set function for sysfs attribute libertas_mpp
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*/
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static ssize_t libertas_mpp_set(struct device * dev,
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struct device_attribute *attr, const char * buf, size_t count) {
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struct cmd_ds_mesh_access mesh_access;
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memset(&mesh_access, 0, sizeof(mesh_access));
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sscanf(buf, "%d", &(mesh_access.data[0]));
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libertas_prepare_and_send_command((to_net_dev(dev))->priv,
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cmd_mesh_access,
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cmd_act_mesh_set_mpp,
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cmd_option_waitforrsp, 0, (void *)&mesh_access);
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return strlen(buf);
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}
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/**
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* libertas_mpp attribute to be exported per mshX interface
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* through sysfs (/sys/class/net/mshX/libertas-mpp)
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*/
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static DEVICE_ATTR(libertas_mpp, 0644, libertas_mpp_get,
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libertas_mpp_set );
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/**
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* @brief Check if the device can be open and wait if necessary.
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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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* For USB adapter, on some systems the device open handler will be
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* called before FW ready. Use the following flag check and wait
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* function to work around the issue.
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*
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*/
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static int pre_open_check(struct net_device *dev)
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{
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wlan_private *priv = (wlan_private *) dev->priv;
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wlan_adapter *adapter = priv->adapter;
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int i = 0;
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while (!adapter->fw_ready && i < 20) {
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i++;
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msleep_interruptible(100);
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}
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if (!adapter->fw_ready) {
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lbs_pr_err("firmware not ready\n");
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return -1;
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}
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return 0;
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}
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/**
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* @brief This function opens the device
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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 wlan_dev_open(struct net_device *dev)
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{
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wlan_private *priv = (wlan_private *) dev->priv;
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wlan_adapter *adapter = priv->adapter;
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lbs_deb_enter(LBS_DEB_NET);
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priv->open = 1;
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if (adapter->connect_status == libertas_connected) {
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netif_carrier_on(priv->dev);
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netif_carrier_on(priv->mesh_dev);
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} else {
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netif_carrier_off(priv->dev);
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netif_carrier_off(priv->mesh_dev);
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}
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lbs_deb_leave(LBS_DEB_NET);
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return 0;
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}
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/**
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* @brief This function opens 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 mesh_open(struct net_device *dev)
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{
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wlan_private *priv = (wlan_private *) dev->priv ;
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if (pre_open_check(dev) == -1)
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return -1;
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priv->mesh_open = 1 ;
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netif_wake_queue(priv->mesh_dev);
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if (priv->infra_open == 0)
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return wlan_dev_open(priv->dev) ;
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return 0;
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}
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/**
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* @brief This function opens 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 wlan_open(struct net_device *dev)
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{
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wlan_private *priv = (wlan_private *) dev->priv ;
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if(pre_open_check(dev) == -1)
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return -1;
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priv->infra_open = 1 ;
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netif_wake_queue(priv->dev);
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if (priv->open == 0)
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return wlan_dev_open(priv->dev) ;
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return 0;
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}
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static int wlan_dev_close(struct net_device *dev)
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{
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wlan_private *priv = dev->priv;
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lbs_deb_enter(LBS_DEB_NET);
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netif_carrier_off(priv->dev);
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priv->open = 0;
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lbs_deb_leave(LBS_DEB_NET);
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return 0;
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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 mesh_close(struct net_device *dev)
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{
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wlan_private *priv = (wlan_private *) (dev->priv);
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priv->mesh_open = 0;
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netif_stop_queue(priv->mesh_dev);
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if (priv->infra_open == 0)
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return wlan_dev_close(dev);
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else
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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 wlan_close(struct net_device *dev)
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{
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wlan_private *priv = (wlan_private *) dev->priv;
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netif_stop_queue(dev);
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priv->infra_open = 0;
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if (priv->mesh_open == 0)
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return wlan_dev_close(dev);
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else
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return 0;
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}
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static int wlan_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
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{
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int ret = 0;
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wlan_private *priv = dev->priv;
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lbs_deb_enter(LBS_DEB_NET);
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if (priv->dnld_sent || priv->adapter->TxLockFlag) {
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priv->stats.tx_dropped++;
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goto done;
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}
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netif_stop_queue(priv->dev);
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netif_stop_queue(priv->mesh_dev);
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if (libertas_process_tx(priv, skb) == 0)
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dev->trans_start = jiffies;
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done:
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lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
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return ret;
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}
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/**
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* @brief Mark mesh packets and handover them to wlan_hard_start_xmit
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*
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*/
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static int mesh_pre_start_xmit(struct sk_buff *skb, struct net_device *dev)
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{
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wlan_private *priv = dev->priv;
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int ret;
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lbs_deb_enter(LBS_DEB_MESH);
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SET_MESH_FRAME(skb);
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ret = wlan_hard_start_xmit(skb, priv->dev);
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lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
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return ret;
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}
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/**
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* @brief Mark non-mesh packets and handover them to wlan_hard_start_xmit
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*
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*/
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static int wlan_pre_start_xmit(struct sk_buff *skb, struct net_device *dev)
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{
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int ret;
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lbs_deb_enter(LBS_DEB_NET);
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UNSET_MESH_FRAME(skb);
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ret = wlan_hard_start_xmit(skb, dev);
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lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
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return ret;
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}
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static void wlan_tx_timeout(struct net_device *dev)
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{
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wlan_private *priv = (wlan_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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priv->dnld_sent = DNLD_RES_RECEIVED;
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dev->trans_start = jiffies;
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if (priv->adapter->currenttxskb) {
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if (priv->adapter->radiomode == WLAN_RADIOMODE_RADIOTAP) {
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/* If we are here, we have not received feedback from
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the previous packet. Assume TX_FAIL and move on. */
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priv->adapter->eventcause = 0x01000000;
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libertas_send_tx_feedback(priv);
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} else
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wake_up_interruptible(&priv->mainthread.waitq);
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} else if (priv->adapter->connect_status == libertas_connected) {
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netif_wake_queue(priv->dev);
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netif_wake_queue(priv->mesh_dev);
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}
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lbs_deb_leave(LBS_DEB_TX);
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}
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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 wlan_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 *wlan_get_stats(struct net_device *dev)
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{
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wlan_private *priv = (wlan_private *) dev->priv;
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return &priv->stats;
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}
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static int wlan_set_mac_address(struct net_device *dev, void *addr)
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{
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int ret = 0;
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wlan_private *priv = (wlan_private *) dev->priv;
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wlan_adapter *adapter = priv->adapter;
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struct sockaddr *phwaddr = addr;
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lbs_deb_enter(LBS_DEB_NET);
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memset(adapter->current_addr, 0, ETH_ALEN);
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/* dev->dev_addr is 8 bytes */
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lbs_dbg_hex("dev->dev_addr:", dev->dev_addr, ETH_ALEN);
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lbs_dbg_hex("addr:", phwaddr->sa_data, ETH_ALEN);
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memcpy(adapter->current_addr, phwaddr->sa_data, ETH_ALEN);
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ret = libertas_prepare_and_send_command(priv, cmd_802_11_mac_address,
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cmd_act_set,
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cmd_option_waitforrsp, 0, NULL);
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if (ret) {
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lbs_deb_net("set MAC address failed\n");
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ret = -1;
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goto done;
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}
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lbs_dbg_hex("adapter->macaddr:", adapter->current_addr, ETH_ALEN);
|
|
memcpy(dev->dev_addr, adapter->current_addr, ETH_ALEN);
|
|
if (priv->mesh_dev)
|
|
memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static int wlan_copy_multicast_address(wlan_adapter * adapter,
|
|
struct net_device *dev)
|
|
{
|
|
int i = 0;
|
|
struct dev_mc_list *mcptr = dev->mc_list;
|
|
|
|
for (i = 0; i < dev->mc_count; i++) {
|
|
memcpy(&adapter->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
|
|
mcptr = mcptr->next;
|
|
}
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
static void wlan_set_multicast_list(struct net_device *dev)
|
|
{
|
|
wlan_private *priv = dev->priv;
|
|
wlan_adapter *adapter = priv->adapter;
|
|
int oldpacketfilter;
|
|
|
|
lbs_deb_enter(LBS_DEB_NET);
|
|
|
|
oldpacketfilter = adapter->currentpacketfilter;
|
|
|
|
if (dev->flags & IFF_PROMISC) {
|
|
lbs_deb_net("enable promiscuous mode\n");
|
|
adapter->currentpacketfilter |=
|
|
cmd_act_mac_promiscuous_enable;
|
|
adapter->currentpacketfilter &=
|
|
~(cmd_act_mac_all_multicast_enable |
|
|
cmd_act_mac_multicast_enable);
|
|
} else {
|
|
/* Multicast */
|
|
adapter->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");
|
|
adapter->currentpacketfilter |=
|
|
cmd_act_mac_all_multicast_enable;
|
|
adapter->currentpacketfilter &=
|
|
~cmd_act_mac_multicast_enable;
|
|
} else {
|
|
adapter->currentpacketfilter &=
|
|
~cmd_act_mac_all_multicast_enable;
|
|
|
|
if (!dev->mc_count) {
|
|
lbs_deb_net("no multicast addresses, "
|
|
"disabling multicast\n");
|
|
adapter->currentpacketfilter &=
|
|
~cmd_act_mac_multicast_enable;
|
|
} else {
|
|
int i;
|
|
|
|
adapter->currentpacketfilter |=
|
|
cmd_act_mac_multicast_enable;
|
|
|
|
adapter->nr_of_multicastmacaddr =
|
|
wlan_copy_multicast_address(adapter, 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:"
|
|
MAC_FMT "\n", i,
|
|
adapter->multicastlist[i][0],
|
|
adapter->multicastlist[i][1],
|
|
adapter->multicastlist[i][2],
|
|
adapter->multicastlist[i][3],
|
|
adapter->multicastlist[i][4],
|
|
adapter->multicastlist[i][5]);
|
|
}
|
|
/* send multicast addresses to firmware */
|
|
libertas_prepare_and_send_command(priv,
|
|
cmd_mac_multicast_adr,
|
|
cmd_act_set, 0, 0,
|
|
NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (adapter->currentpacketfilter != oldpacketfilter) {
|
|
libertas_set_mac_packet_filter(priv);
|
|
}
|
|
|
|
lbs_deb_leave(LBS_DEB_NET);
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles the major jobs in the WLAN driver.
|
|
* It handles all events generated by firmware, RX data received
|
|
* from firmware and TX data sent from kernel.
|
|
*
|
|
* @param data A pointer to wlan_thread structure
|
|
* @return 0
|
|
*/
|
|
static int wlan_service_main_thread(void *data)
|
|
{
|
|
struct wlan_thread *thread = data;
|
|
wlan_private *priv = thread->priv;
|
|
wlan_adapter *adapter = priv->adapter;
|
|
wait_queue_t wait;
|
|
u8 ireg = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_THREAD);
|
|
|
|
wlan_activate_thread(thread);
|
|
|
|
init_waitqueue_entry(&wait, current);
|
|
|
|
for (;;) {
|
|
lbs_deb_thread( "main-thread 111: intcounter=%d "
|
|
"currenttxskb=%p dnld_sent=%d\n",
|
|
adapter->intcounter,
|
|
adapter->currenttxskb, priv->dnld_sent);
|
|
|
|
add_wait_queue(&thread->waitq, &wait);
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
spin_lock_irq(&adapter->driver_lock);
|
|
if ((adapter->psstate == PS_STATE_SLEEP) ||
|
|
(!adapter->intcounter
|
|
&& (priv->dnld_sent || adapter->cur_cmd ||
|
|
list_empty(&adapter->cmdpendingq)))) {
|
|
lbs_deb_thread(
|
|
"main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
|
|
adapter->connect_status, adapter->intcounter,
|
|
adapter->psmode, adapter->psstate);
|
|
spin_unlock_irq(&adapter->driver_lock);
|
|
schedule();
|
|
} else
|
|
spin_unlock_irq(&adapter->driver_lock);
|
|
|
|
|
|
lbs_deb_thread(
|
|
"main-thread 222 (waking up): intcounter=%d currenttxskb=%p "
|
|
"dnld_sent=%d\n", adapter->intcounter,
|
|
adapter->currenttxskb, priv->dnld_sent);
|
|
|
|
set_current_state(TASK_RUNNING);
|
|
remove_wait_queue(&thread->waitq, &wait);
|
|
try_to_freeze();
|
|
|
|
lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p "
|
|
"dnld_sent=%d\n",
|
|
adapter->intcounter,
|
|
adapter->currenttxskb, priv->dnld_sent);
|
|
|
|
if (kthread_should_stop()
|
|
|| adapter->surpriseremoved) {
|
|
lbs_deb_thread(
|
|
"main-thread: break from main thread: surpriseremoved=0x%x\n",
|
|
adapter->surpriseremoved);
|
|
break;
|
|
}
|
|
|
|
|
|
spin_lock_irq(&adapter->driver_lock);
|
|
if (adapter->intcounter) {
|
|
u8 int_status;
|
|
adapter->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(&adapter->driver_lock);
|
|
continue;
|
|
}
|
|
adapter->hisregcpy |= ireg;
|
|
}
|
|
|
|
lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p "
|
|
"dnld_sent=%d\n",
|
|
adapter->intcounter,
|
|
adapter->currenttxskb, priv->dnld_sent);
|
|
|
|
/* command response? */
|
|
if (adapter->hisregcpy & his_cmdupldrdy) {
|
|
lbs_deb_thread("main-thread: cmd response ready\n");
|
|
|
|
adapter->hisregcpy &= ~his_cmdupldrdy;
|
|
spin_unlock_irq(&adapter->driver_lock);
|
|
libertas_process_rx_command(priv);
|
|
spin_lock_irq(&adapter->driver_lock);
|
|
}
|
|
|
|
/* Any Card Event */
|
|
if (adapter->hisregcpy & his_cardevent) {
|
|
lbs_deb_thread("main-thread: Card Event Activity\n");
|
|
|
|
adapter->hisregcpy &= ~his_cardevent;
|
|
|
|
if (priv->hw_read_event_cause(priv)) {
|
|
lbs_pr_alert(
|
|
"main-thread: hw_read_event_cause failed\n");
|
|
spin_unlock_irq(&adapter->driver_lock);
|
|
continue;
|
|
}
|
|
spin_unlock_irq(&adapter->driver_lock);
|
|
libertas_process_event(priv);
|
|
} else
|
|
spin_unlock_irq(&adapter->driver_lock);
|
|
|
|
/* Check if we need to confirm Sleep Request received previously */
|
|
if (adapter->psstate == PS_STATE_PRE_SLEEP) {
|
|
if (!priv->dnld_sent && !adapter->cur_cmd) {
|
|
if (adapter->connect_status ==
|
|
libertas_connected) {
|
|
lbs_deb_thread(
|
|
"main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p "
|
|
"dnld_sent=%d cur_cmd=%p, confirm now\n",
|
|
adapter->intcounter,
|
|
adapter->currenttxskb,
|
|
priv->dnld_sent,
|
|
adapter->cur_cmd);
|
|
|
|
libertas_ps_confirm_sleep(priv,
|
|
(u16) adapter->psmode);
|
|
} else {
|
|
/* workaround for firmware sending
|
|
* deauth/linkloss event immediately
|
|
* after sleep request, remove this
|
|
* after firmware fixes it
|
|
*/
|
|
adapter->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->adapter->psstate == PS_STATE_SLEEP) ||
|
|
(priv->adapter->psstate == PS_STATE_PRE_SLEEP))
|
|
continue;
|
|
|
|
/* Execute the next command */
|
|
if (!priv->dnld_sent && !priv->adapter->cur_cmd)
|
|
libertas_execute_next_command(priv);
|
|
|
|
/* Wake-up command waiters which can't sleep in
|
|
* libertas_prepare_and_send_command
|
|
*/
|
|
if (!adapter->nr_cmd_pending)
|
|
wake_up_all(&adapter->cmd_pending);
|
|
|
|
libertas_tx_runqueue(priv);
|
|
}
|
|
|
|
del_timer(&adapter->command_timer);
|
|
adapter->nr_cmd_pending = 0;
|
|
wake_up_all(&adapter->cmd_pending);
|
|
wlan_deactivate_thread(thread);
|
|
|
|
lbs_deb_leave(LBS_DEB_THREAD);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief This function adds the card. it will probe the
|
|
* card, allocate the wlan_priv and initialize the device.
|
|
*
|
|
* @param card A pointer to card
|
|
* @return A pointer to wlan_private structure
|
|
*/
|
|
wlan_private *libertas_add_card(void *card, struct device *dmdev)
|
|
{
|
|
struct net_device *dev = NULL;
|
|
wlan_private *priv = NULL;
|
|
|
|
lbs_deb_enter(LBS_DEB_NET);
|
|
|
|
/* Allocate an Ethernet device and register it */
|
|
if (!(dev = alloc_etherdev(sizeof(wlan_private)))) {
|
|
lbs_pr_err("init ethX device failed\n");
|
|
return NULL;
|
|
}
|
|
priv = dev->priv;
|
|
|
|
/* allocate buffer for wlan_adapter */
|
|
if (!(priv->adapter = kzalloc(sizeof(wlan_adapter), GFP_KERNEL))) {
|
|
lbs_pr_err("allocate buffer for wlan_adapter failed\n");
|
|
goto err_kzalloc;
|
|
}
|
|
|
|
priv->dev = dev;
|
|
priv->card = card;
|
|
priv->mesh_open = 0;
|
|
priv->infra_open = 0;
|
|
|
|
SET_MODULE_OWNER(dev);
|
|
|
|
/* Setup the OS Interface to our functions */
|
|
dev->open = wlan_open;
|
|
dev->hard_start_xmit = wlan_pre_start_xmit;
|
|
dev->stop = wlan_close;
|
|
dev->do_ioctl = libertas_do_ioctl;
|
|
dev->set_mac_address = wlan_set_mac_address;
|
|
dev->tx_timeout = wlan_tx_timeout;
|
|
dev->get_stats = wlan_get_stats;
|
|
dev->watchdog_timeo = 5 * HZ;
|
|
dev->ethtool_ops = &libertas_ethtool_ops;
|
|
#ifdef WIRELESS_EXT
|
|
dev->wireless_handlers = (struct iw_handler_def *)&libertas_handler_def;
|
|
#endif
|
|
#define NETIF_F_DYNALLOC 16
|
|
dev->features |= NETIF_F_DYNALLOC;
|
|
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
|
|
dev->set_multicast_list = wlan_set_multicast_list;
|
|
|
|
SET_NETDEV_DEV(dev, dmdev);
|
|
|
|
INIT_LIST_HEAD(&priv->adapter->cmdfreeq);
|
|
INIT_LIST_HEAD(&priv->adapter->cmdpendingq);
|
|
|
|
spin_lock_init(&priv->adapter->driver_lock);
|
|
init_waitqueue_head(&priv->adapter->cmd_pending);
|
|
priv->adapter->nr_cmd_pending = 0;
|
|
goto done;
|
|
|
|
err_kzalloc:
|
|
free_netdev(dev);
|
|
priv = NULL;
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
|
|
return priv;
|
|
}
|
|
EXPORT_SYMBOL_GPL(libertas_add_card);
|
|
|
|
int libertas_activate_card(wlan_private *priv, char *fw_name)
|
|
{
|
|
struct net_device *dev = priv->dev;
|
|
int ret = -1;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
lbs_deb_thread("Starting kthread...\n");
|
|
priv->mainthread.priv = priv;
|
|
wlan_create_thread(wlan_service_main_thread,
|
|
&priv->mainthread, "wlan_main_service");
|
|
|
|
priv->assoc_thread =
|
|
create_singlethread_workqueue("libertas_assoc");
|
|
INIT_DELAYED_WORK(&priv->assoc_work, libertas_association_worker);
|
|
|
|
/*
|
|
* Register the device. Fillup the private data structure with
|
|
* relevant information from the card and request for the required
|
|
* IRQ.
|
|
*/
|
|
if (priv->hw_register_dev(priv) < 0) {
|
|
lbs_pr_err("failed to register WLAN device\n");
|
|
goto err_registerdev;
|
|
}
|
|
|
|
/* init FW and HW */
|
|
if (fw_name && libertas_init_fw(priv, fw_name)) {
|
|
lbs_pr_err("firmware init failed\n");
|
|
goto err_registerdev;
|
|
}
|
|
|
|
if (register_netdev(dev)) {
|
|
lbs_pr_err("cannot register ethX device\n");
|
|
goto err_init_fw;
|
|
}
|
|
|
|
lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
|
|
|
|
libertas_debugfs_init_one(priv, dev);
|
|
|
|
ret = 0;
|
|
goto done;
|
|
|
|
err_init_fw:
|
|
priv->hw_unregister_dev(priv);
|
|
err_registerdev:
|
|
destroy_workqueue(priv->assoc_thread);
|
|
/* Stop the thread servicing the interrupts */
|
|
wake_up_interruptible(&priv->mainthread.waitq);
|
|
wlan_terminate_thread(&priv->mainthread);
|
|
kfree(priv->adapter);
|
|
free_netdev(dev);
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(libertas_activate_card);
|
|
|
|
|
|
/**
|
|
* @brief This function adds mshX interface
|
|
*
|
|
* @param priv A pointer to the wlan_private structure
|
|
* @return 0 if successful, -X otherwise
|
|
*/
|
|
int libertas_add_mesh(wlan_private *priv, struct device *dev)
|
|
{
|
|
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;
|
|
|
|
SET_MODULE_OWNER(mesh_dev);
|
|
|
|
mesh_dev->open = mesh_open;
|
|
mesh_dev->hard_start_xmit = mesh_pre_start_xmit;
|
|
mesh_dev->stop = mesh_close;
|
|
mesh_dev->do_ioctl = libertas_do_ioctl;
|
|
mesh_dev->get_stats = wlan_get_stats;
|
|
mesh_dev->ethtool_ops = &libertas_ethtool_ops;
|
|
memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
|
|
sizeof(priv->dev->dev_addr));
|
|
|
|
SET_NETDEV_DEV(priv->mesh_dev, dev);
|
|
|
|
#ifdef WIRELESS_EXT
|
|
mesh_dev->wireless_handlers = (struct iw_handler_def *)&libertas_handler_def;
|
|
#endif
|
|
#define NETIF_F_DYNALLOC 16
|
|
|
|
/* Register virtual mesh interface */
|
|
ret = register_netdev(mesh_dev);
|
|
if (ret) {
|
|
lbs_pr_err("cannot register mshX virtual interface\n");
|
|
goto err_free;
|
|
}
|
|
|
|
ret = device_create_file(&(mesh_dev->dev), &dev_attr_libertas_mpp);
|
|
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(libertas_add_mesh);
|
|
|
|
static void wake_pending_cmdnodes(wlan_private *priv)
|
|
{
|
|
struct cmd_ctrl_node *cmdnode;
|
|
unsigned long flags;
|
|
|
|
lbs_deb_enter(LBS_DEB_CMD);
|
|
|
|
spin_lock_irqsave(&priv->adapter->driver_lock, flags);
|
|
list_for_each_entry(cmdnode, &priv->adapter->cmdpendingq, list) {
|
|
cmdnode->cmdwaitqwoken = 1;
|
|
wake_up_interruptible(&cmdnode->cmdwait_q);
|
|
}
|
|
spin_unlock_irqrestore(&priv->adapter->driver_lock, flags);
|
|
}
|
|
|
|
|
|
int libertas_remove_card(wlan_private *priv)
|
|
{
|
|
wlan_adapter *adapter;
|
|
struct net_device *dev;
|
|
union iwreq_data wrqu;
|
|
|
|
lbs_deb_enter(LBS_DEB_NET);
|
|
|
|
if (!priv)
|
|
goto out;
|
|
|
|
adapter = priv->adapter;
|
|
|
|
if (!adapter)
|
|
goto out;
|
|
|
|
dev = priv->dev;
|
|
|
|
netif_stop_queue(priv->dev);
|
|
netif_carrier_off(priv->dev);
|
|
|
|
wake_pending_cmdnodes(priv);
|
|
|
|
unregister_netdev(dev);
|
|
|
|
cancel_delayed_work(&priv->assoc_work);
|
|
destroy_workqueue(priv->assoc_thread);
|
|
|
|
if (adapter->psmode == wlan802_11powermodemax_psp) {
|
|
adapter->psmode = wlan802_11powermodecam;
|
|
libertas_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);
|
|
|
|
adapter->surpriseremoved = 1;
|
|
|
|
/* Stop the thread servicing the interrupts */
|
|
wlan_terminate_thread(&priv->mainthread);
|
|
|
|
libertas_debugfs_remove_one(priv);
|
|
|
|
lbs_deb_net("free adapter\n");
|
|
libertas_free_adapter(priv);
|
|
|
|
lbs_deb_net("unregister finish\n");
|
|
|
|
priv->dev = NULL;
|
|
free_netdev(dev);
|
|
|
|
out:
|
|
lbs_deb_leave(LBS_DEB_NET);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(libertas_remove_card);
|
|
|
|
|
|
void libertas_remove_mesh(wlan_private *priv)
|
|
{
|
|
struct net_device *mesh_dev;
|
|
|
|
lbs_deb_enter(LBS_DEB_NET);
|
|
|
|
if (!priv)
|
|
goto out;
|
|
|
|
mesh_dev = priv->mesh_dev;
|
|
|
|
netif_stop_queue(mesh_dev);
|
|
netif_carrier_off(priv->mesh_dev);
|
|
|
|
device_remove_file(&(mesh_dev->dev), &dev_attr_libertas_mpp);
|
|
unregister_netdev(mesh_dev);
|
|
|
|
priv->mesh_dev = NULL ;
|
|
free_netdev(mesh_dev);
|
|
|
|
out:
|
|
lbs_deb_leave(LBS_DEB_NET);
|
|
}
|
|
EXPORT_SYMBOL_GPL(libertas_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 *libertas_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
|
|
{
|
|
int i, end;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
end = sizeof(region_cfp_table)/sizeof(struct 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 libertas_set_regiontable(wlan_private * priv, u8 region, u8 band)
|
|
{
|
|
wlan_adapter *adapter = priv->adapter;
|
|
int ret = 0;
|
|
int i = 0;
|
|
|
|
struct chan_freq_power *cfp;
|
|
int cfp_no;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
memset(adapter->region_channel, 0, sizeof(adapter->region_channel));
|
|
|
|
{
|
|
cfp = libertas_get_region_cfp_table(region, band, &cfp_no);
|
|
if (cfp != NULL) {
|
|
adapter->region_channel[i].nrcfp = cfp_no;
|
|
adapter->region_channel[i].CFP = cfp;
|
|
} else {
|
|
lbs_deb_main("wrong region code %#x in band B/G\n",
|
|
region);
|
|
ret = -1;
|
|
goto out;
|
|
}
|
|
adapter->region_channel[i].valid = 1;
|
|
adapter->region_channel[i].region = region;
|
|
adapter->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 libertas_interrupt(struct net_device *dev)
|
|
{
|
|
wlan_private *priv = dev->priv;
|
|
|
|
lbs_deb_enter(LBS_DEB_THREAD);
|
|
|
|
lbs_deb_thread("libertas_interrupt: intcounter=%d\n",
|
|
priv->adapter->intcounter);
|
|
|
|
priv->adapter->intcounter++;
|
|
|
|
if (priv->adapter->psstate == PS_STATE_SLEEP) {
|
|
priv->adapter->psstate = PS_STATE_AWAKE;
|
|
netif_wake_queue(dev);
|
|
netif_wake_queue(priv->mesh_dev);
|
|
}
|
|
|
|
wake_up_interruptible(&priv->mainthread.waitq);
|
|
|
|
lbs_deb_leave(LBS_DEB_THREAD);
|
|
}
|
|
EXPORT_SYMBOL_GPL(libertas_interrupt);
|
|
|
|
static int libertas_init_module(void)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
libertas_debugfs_init();
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
return 0;
|
|
}
|
|
|
|
static void libertas_exit_module(void)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
libertas_debugfs_remove();
|
|
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
}
|
|
|
|
module_init(libertas_init_module);
|
|
module_exit(libertas_exit_module);
|
|
|
|
MODULE_DESCRIPTION("Libertas WLAN Driver Library");
|
|
MODULE_AUTHOR("Marvell International Ltd.");
|
|
MODULE_LICENSE("GPL");
|