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7919b89c82
This patch (co-developed by Dan Williams and Holger Schurig) uses a kfifo object for events and a swapping buffer scheme for the command response to preserve the zero-copy semantics of the CF driver and keep memory usage low. The main thread should only ever touch the buffer indexed by priv->resp_idx, while the interface code is free to write to the second buffer, then swap priv->resp_idx under the driver spinlock. The firmware specs only permit one in-flight command, so there will only ever be one command response to process at a time. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
405 lines
8.7 KiB
C
405 lines
8.7 KiB
C
/**
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* This file contains definitions and data structures specific
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* to Marvell 802.11 NIC. It contains the Device Information
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* structure struct lbs_private..
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*/
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#ifndef _LBS_DEV_H_
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#define _LBS_DEV_H_
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#include <linux/netdevice.h>
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#include <linux/wireless.h>
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#include <linux/ethtool.h>
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#include <linux/debugfs.h>
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#include <net/ieee80211.h>
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#include "defs.h"
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#include "hostcmd.h"
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extern struct ethtool_ops lbs_ethtool_ops;
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#define MAX_BSSID_PER_CHANNEL 16
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#define NR_TX_QUEUE 3
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/* For the extended Scan */
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#define MAX_EXTENDED_SCAN_BSSID_LIST MAX_BSSID_PER_CHANNEL * \
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MRVDRV_MAX_CHANNEL_SIZE + 1
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#define MAX_REGION_CHANNEL_NUM 2
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/** Chan-freq-TxPower mapping table*/
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struct chan_freq_power {
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/** channel Number */
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u16 channel;
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/** frequency of this channel */
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u32 freq;
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/** Max allowed Tx power level */
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u16 maxtxpower;
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/** TRUE:channel unsupported; FLASE:supported*/
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u8 unsupported;
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};
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/** region-band mapping table*/
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struct region_channel {
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/** TRUE if this entry is valid */
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u8 valid;
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/** region code for US, Japan ... */
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u8 region;
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/** band B/G/A, used for BAND_CONFIG cmd */
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u8 band;
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/** Actual No. of elements in the array below */
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u8 nrcfp;
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/** chan-freq-txpower mapping table*/
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struct chan_freq_power *CFP;
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};
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struct lbs_802_11_security {
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u8 WPAenabled;
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u8 WPA2enabled;
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u8 wep_enabled;
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u8 auth_mode;
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};
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/** Current Basic Service Set State Structure */
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struct current_bss_params {
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/** bssid */
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u8 bssid[ETH_ALEN];
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/** ssid */
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u8 ssid[IW_ESSID_MAX_SIZE + 1];
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u8 ssid_len;
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/** band */
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u8 band;
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/** channel */
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u8 channel;
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/** zero-terminated array of supported data rates */
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u8 rates[MAX_RATES + 1];
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};
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/** sleep_params */
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struct sleep_params {
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uint16_t sp_error;
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uint16_t sp_offset;
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uint16_t sp_stabletime;
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uint8_t sp_calcontrol;
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uint8_t sp_extsleepclk;
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uint16_t sp_reserved;
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};
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/* Mesh statistics */
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struct lbs_mesh_stats {
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u32 fwd_bcast_cnt; /* Fwd: Broadcast counter */
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u32 fwd_unicast_cnt; /* Fwd: Unicast counter */
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u32 fwd_drop_ttl; /* Fwd: TTL zero */
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u32 fwd_drop_rbt; /* Fwd: Recently Broadcasted */
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u32 fwd_drop_noroute; /* Fwd: No route to Destination */
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u32 fwd_drop_nobuf; /* Fwd: Run out of internal buffers */
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u32 drop_blind; /* Rx: Dropped by blinding table */
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u32 tx_failed_cnt; /* Tx: Failed transmissions */
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};
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/** Private structure for the MV device */
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struct lbs_private {
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int mesh_open;
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int infra_open;
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int mesh_autostart_enabled;
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char name[DEV_NAME_LEN];
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void *card;
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struct net_device *dev;
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struct net_device_stats stats;
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struct net_device *mesh_dev; /* Virtual device */
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struct net_device *rtap_net_dev;
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struct iw_statistics wstats;
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struct lbs_mesh_stats mstats;
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struct dentry *debugfs_dir;
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struct dentry *debugfs_debug;
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struct dentry *debugfs_files[6];
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struct dentry *events_dir;
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struct dentry *debugfs_events_files[6];
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struct dentry *regs_dir;
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struct dentry *debugfs_regs_files[6];
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u32 mac_offset;
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u32 bbp_offset;
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u32 rf_offset;
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/* Download sent:
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bit0 1/0=data_sent/data_tx_done,
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bit1 1/0=cmd_sent/cmd_tx_done,
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all other bits reserved 0 */
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u8 dnld_sent;
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/** thread to service interrupts */
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struct task_struct *main_thread;
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wait_queue_head_t waitq;
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struct workqueue_struct *work_thread;
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/** Scanning */
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struct delayed_work scan_work;
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struct delayed_work assoc_work;
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struct work_struct sync_channel;
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/* remember which channel was scanned last, != 0 if currently scanning */
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int scan_channel;
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u8 scan_ssid[IW_ESSID_MAX_SIZE + 1];
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u8 scan_ssid_len;
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/** Hardware access */
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int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, u16 nb);
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/* Wake On LAN */
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uint32_t wol_criteria;
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uint8_t wol_gpio;
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uint8_t wol_gap;
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/** Wlan adapter data structure*/
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/** STATUS variables */
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u32 fwrelease;
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u32 fwcapinfo;
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struct mutex lock;
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/* TX packet ready to be sent... */
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int tx_pending_len; /* -1 while building packet */
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u8 tx_pending_buf[LBS_UPLD_SIZE];
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/* protected by hard_start_xmit serialization */
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/** command-related variables */
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u16 seqnum;
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struct cmd_ctrl_node *cmd_array;
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/** Current command */
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struct cmd_ctrl_node *cur_cmd;
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int cur_cmd_retcode;
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/** command Queues */
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/** Free command buffers */
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struct list_head cmdfreeq;
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/** Pending command buffers */
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struct list_head cmdpendingq;
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wait_queue_head_t cmd_pending;
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/* Command responses sent from the hardware to the driver */
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u8 resp_idx;
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u8 resp_buf[2][LBS_UPLD_SIZE];
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u32 resp_len[2];
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/* Events sent from hardware to driver */
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struct kfifo *event_fifo;
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/* nickname */
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u8 nodename[16];
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/** spin locks */
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spinlock_t driver_lock;
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/** Timers */
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struct timer_list command_timer;
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int nr_retries;
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int cmd_timed_out;
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/** current ssid/bssid related parameters*/
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struct current_bss_params curbssparams;
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uint16_t mesh_tlv;
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u8 mesh_ssid[IW_ESSID_MAX_SIZE + 1];
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u8 mesh_ssid_len;
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/* IW_MODE_* */
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u8 mode;
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/* Scan results list */
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struct list_head network_list;
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struct list_head network_free_list;
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struct bss_descriptor *networks;
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u16 beacon_period;
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u8 beacon_enable;
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u8 adhoccreate;
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/** capability Info used in Association, start, join */
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u16 capability;
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/** MAC address information */
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u8 current_addr[ETH_ALEN];
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u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN];
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u32 nr_of_multicastmacaddr;
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/** 802.11 statistics */
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// struct cmd_DS_802_11_GET_STAT wlan802_11Stat;
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u16 enablehwauto;
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u16 ratebitmap;
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u32 fragthsd;
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u32 rtsthsd;
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u8 txretrycount;
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/** Tx-related variables (for single packet tx) */
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struct sk_buff *currenttxskb;
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/** NIC Operation characteristics */
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u16 mac_control;
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u32 connect_status;
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u32 mesh_connect_status;
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u16 regioncode;
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u16 txpowerlevel;
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/** POWER MANAGEMENT AND PnP SUPPORT */
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u8 surpriseremoved;
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u16 psmode; /* Wlan802_11PowermodeCAM=disable
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Wlan802_11PowermodeMAX_PSP=enable */
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u32 psstate;
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char ps_supported;
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u8 needtowakeup;
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struct assoc_request * pending_assoc_req;
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struct assoc_request * in_progress_assoc_req;
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/** Encryption parameter */
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struct lbs_802_11_security secinfo;
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/** WEP keys */
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struct enc_key wep_keys[4];
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u16 wep_tx_keyidx;
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/** WPA keys */
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struct enc_key wpa_mcast_key;
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struct enc_key wpa_unicast_key;
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/** WPA Information Elements*/
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u8 wpa_ie[MAX_WPA_IE_LEN];
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u8 wpa_ie_len;
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/** Requested Signal Strength*/
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u16 SNR[MAX_TYPE_B][MAX_TYPE_AVG];
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u16 NF[MAX_TYPE_B][MAX_TYPE_AVG];
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u8 RSSI[MAX_TYPE_B][MAX_TYPE_AVG];
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u8 rawSNR[DEFAULT_DATA_AVG_FACTOR];
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u8 rawNF[DEFAULT_DATA_AVG_FACTOR];
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u16 nextSNRNF;
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u16 numSNRNF;
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u8 radioon;
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u32 preamble;
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/** data rate stuff */
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u8 cur_rate;
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u8 auto_rate;
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/** RF calibration data */
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#define MAX_REGION_CHANNEL_NUM 2
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/** region channel data */
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struct region_channel region_channel[MAX_REGION_CHANNEL_NUM];
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struct region_channel universal_channel[MAX_REGION_CHANNEL_NUM];
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/** 11D and Domain Regulatory Data */
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struct lbs_802_11d_domain_reg domainreg;
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struct parsed_region_chan_11d parsed_region_chan;
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/** FSM variable for 11d support */
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u32 enable11d;
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/** MISCELLANEOUS */
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struct lbs_offset_value offsetvalue;
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u32 monitormode;
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u8 fw_ready;
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};
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extern struct cmd_confirm_sleep confirm_sleep;
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/**
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* @brief Structure used to store information for each beacon/probe response
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*/
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struct bss_descriptor {
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u8 bssid[ETH_ALEN];
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u8 ssid[IW_ESSID_MAX_SIZE + 1];
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u8 ssid_len;
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u16 capability;
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u32 rssi;
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u32 channel;
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u16 beaconperiod;
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u32 atimwindow;
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/* IW_MODE_AUTO, IW_MODE_ADHOC, IW_MODE_INFRA */
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u8 mode;
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/* zero-terminated array of supported data rates */
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u8 rates[MAX_RATES + 1];
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unsigned long last_scanned;
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union ieeetypes_phyparamset phyparamset;
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union IEEEtypes_ssparamset ssparamset;
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struct ieeetypes_countryinfofullset countryinfo;
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u8 wpa_ie[MAX_WPA_IE_LEN];
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size_t wpa_ie_len;
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u8 rsn_ie[MAX_WPA_IE_LEN];
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size_t rsn_ie_len;
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u8 mesh;
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struct list_head list;
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};
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/** Association request
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*
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* Encapsulates all the options that describe a specific assocation request
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* or configuration of the wireless card's radio, mode, and security settings.
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*/
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struct assoc_request {
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#define ASSOC_FLAG_SSID 1
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#define ASSOC_FLAG_CHANNEL 2
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#define ASSOC_FLAG_BAND 3
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#define ASSOC_FLAG_MODE 4
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#define ASSOC_FLAG_BSSID 5
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#define ASSOC_FLAG_WEP_KEYS 6
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#define ASSOC_FLAG_WEP_TX_KEYIDX 7
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#define ASSOC_FLAG_WPA_MCAST_KEY 8
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#define ASSOC_FLAG_WPA_UCAST_KEY 9
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#define ASSOC_FLAG_SECINFO 10
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#define ASSOC_FLAG_WPA_IE 11
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unsigned long flags;
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u8 ssid[IW_ESSID_MAX_SIZE + 1];
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u8 ssid_len;
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u8 channel;
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u8 band;
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u8 mode;
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u8 bssid[ETH_ALEN] __attribute__ ((aligned (2)));
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/** WEP keys */
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struct enc_key wep_keys[4];
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u16 wep_tx_keyidx;
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/** WPA keys */
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struct enc_key wpa_mcast_key;
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struct enc_key wpa_unicast_key;
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struct lbs_802_11_security secinfo;
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/** WPA Information Elements*/
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u8 wpa_ie[MAX_WPA_IE_LEN];
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u8 wpa_ie_len;
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/* BSS to associate with for infrastructure of Ad-Hoc join */
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struct bss_descriptor bss;
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};
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#endif
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