korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-19 02:04:19 +08:00
Code Issues Packages Projects Releases Wiki Activity
5c16a96c4f
linux/drivers/net/wireless/wl12xx/wl1271.h
Juuso Oikarinen 19ad0715d8 wl1271: Add retry implementation for PSM entries 
PSM entries can fail (transmitting the corresponding null-func may not
be heard by the AP.) Previously, this scenario was not detected, and
out-of-sync between STA and AP could occur.

Add retry implementation for the entries to recover from the situation.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-02 15:43:34 -05:00

471 lines
11 KiB
C
Raw Blame History

/*
* This file is part of wl1271
*
* Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
* Copyright (C) 2008-2009 Nokia Corporation
*
* Contact: Luciano Coelho <luciano.coelho@nokia.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef __WL1271_H__
#define __WL1271_H__
#include <linux/mutex.h>
#include <linux/completion.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/bitops.h>
#include <net/mac80211.h>
#include "wl1271_conf.h"
#define DRIVER_NAME "wl1271"
#define DRIVER_PREFIX DRIVER_NAME ": "
enum {
DEBUG_NONE = 0,
DEBUG_IRQ = BIT(0),
DEBUG_SPI = BIT(1),
DEBUG_BOOT = BIT(2),
DEBUG_MAILBOX = BIT(3),
DEBUG_NETLINK = BIT(4),
DEBUG_EVENT = BIT(5),
DEBUG_TX = BIT(6),
DEBUG_RX = BIT(7),
DEBUG_SCAN = BIT(8),
DEBUG_CRYPT = BIT(9),
DEBUG_PSM = BIT(10),
DEBUG_MAC80211 = BIT(11),
DEBUG_CMD = BIT(12),
DEBUG_ACX = BIT(13),
DEBUG_ALL = ~0,
};
#define DEBUG_LEVEL (DEBUG_NONE)
#define DEBUG_DUMP_LIMIT 1024
#define wl1271_error(fmt, arg...) \
printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
#define wl1271_warning(fmt, arg...) \
printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
#define wl1271_notice(fmt, arg...) \
printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)
#define wl1271_info(fmt, arg...) \
printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg)
#define wl1271_debug(level, fmt, arg...) \
do { \
if (level & DEBUG_LEVEL) \
printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
} while (0)
#define wl1271_dump(level, prefix, buf, len) \
do { \
if (level & DEBUG_LEVEL) \
print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
DUMP_PREFIX_OFFSET, 16, 1, \
buf, \
min_t(size_t, len, DEBUG_DUMP_LIMIT), \
0); \
} while (0)
#define wl1271_dump_ascii(level, prefix, buf, len) \
do { \
if (level & DEBUG_LEVEL) \
print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
DUMP_PREFIX_OFFSET, 16, 1, \
buf, \
min_t(size_t, len, DEBUG_DUMP_LIMIT), \
true); \
} while (0)
#define WL1271_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN | \
CFG_BSSID_FILTER_EN | \
CFG_MC_FILTER_EN)
#define WL1271_DEFAULT_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN | \
CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
CFG_RX_CTL_EN | CFG_RX_BCN_EN | \
CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
#define WL1271_DEFAULT_BASIC_RATE_SET (CONF_TX_RATE_MASK_ALL)
#define WL1271_FW_NAME "wl1271-fw.bin"
#define WL1271_NVS_NAME "wl1271-nvs.bin"
/*
* Enable/disable 802.11a support for WL1273
*/
#undef WL1271_80211A_ENABLED
/*
* FIXME: for the wl1271, a busy word count of 1 here will result in a more
* optimal SPI interface. There is some SPI bug however, causing RXS time outs
* with this mode occasionally on boot, so lets have three for now. A value of
* three should make sure, that the chipset will always be ready, though this
* will impact throughput and latencies slightly.
*/
#define WL1271_BUSY_WORD_CNT 3
#define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
#define WL1271_ELP_HW_STATE_ASLEEP 0
#define WL1271_ELP_HW_STATE_IRQ 1
#define WL1271_DEFAULT_BEACON_INT 100
#define WL1271_DEFAULT_DTIM_PERIOD 1
#define ACX_TX_DESCRIPTORS 32
enum wl1271_state {
WL1271_STATE_OFF,
WL1271_STATE_ON,
WL1271_STATE_PLT,
};
enum wl1271_partition_type {
PART_DOWN,
PART_WORK,
PART_DRPW,
PART_TABLE_LEN
};
struct wl1271_partition {
u32 size;
u32 start;
};
struct wl1271_partition_set {
struct wl1271_partition mem;
struct wl1271_partition reg;
struct wl1271_partition mem2;
struct wl1271_partition mem3;
};
struct wl1271;
/* FIXME: I'm not sure about this structure name */
struct wl1271_chip {
u32 id;
char fw_ver[21];
};
struct wl1271_stats {
struct acx_statistics *fw_stats;
unsigned long fw_stats_update;
unsigned int retry_count;
unsigned int excessive_retries;
};
struct wl1271_debugfs {
struct dentry *rootdir;
struct dentry *fw_statistics;
struct dentry *tx_internal_desc_overflow;
struct dentry *rx_out_of_mem;
struct dentry *rx_hdr_overflow;
struct dentry *rx_hw_stuck;
struct dentry *rx_dropped;
struct dentry *rx_fcs_err;
struct dentry *rx_xfr_hint_trig;
struct dentry *rx_path_reset;
struct dentry *rx_reset_counter;
struct dentry *dma_rx_requested;
struct dentry *dma_rx_errors;
struct dentry *dma_tx_requested;
struct dentry *dma_tx_errors;
struct dentry *isr_cmd_cmplt;
struct dentry *isr_fiqs;
struct dentry *isr_rx_headers;
struct dentry *isr_rx_mem_overflow;
struct dentry *isr_rx_rdys;
struct dentry *isr_irqs;
struct dentry *isr_tx_procs;
struct dentry *isr_decrypt_done;
struct dentry *isr_dma0_done;
struct dentry *isr_dma1_done;
struct dentry *isr_tx_exch_complete;
struct dentry *isr_commands;
struct dentry *isr_rx_procs;
struct dentry *isr_hw_pm_mode_changes;
struct dentry *isr_host_acknowledges;
struct dentry *isr_pci_pm;
struct dentry *isr_wakeups;
struct dentry *isr_low_rssi;
struct dentry *wep_addr_key_count;
struct dentry *wep_default_key_count;
/* skipping wep.reserved */
struct dentry *wep_key_not_found;
struct dentry *wep_decrypt_fail;
struct dentry *wep_packets;
struct dentry *wep_interrupt;
struct dentry *pwr_ps_enter;
struct dentry *pwr_elp_enter;
struct dentry *pwr_missing_bcns;
struct dentry *pwr_wake_on_host;
struct dentry *pwr_wake_on_timer_exp;
struct dentry *pwr_tx_with_ps;
struct dentry *pwr_tx_without_ps;
struct dentry *pwr_rcvd_beacons;
struct dentry *pwr_power_save_off;
struct dentry *pwr_enable_ps;
struct dentry *pwr_disable_ps;
struct dentry *pwr_fix_tsf_ps;
/* skipping cont_miss_bcns_spread for now */
struct dentry *pwr_rcvd_awake_beacons;
struct dentry *mic_rx_pkts;
struct dentry *mic_calc_failure;
struct dentry *aes_encrypt_fail;
struct dentry *aes_decrypt_fail;
struct dentry *aes_encrypt_packets;
struct dentry *aes_decrypt_packets;
struct dentry *aes_encrypt_interrupt;
struct dentry *aes_decrypt_interrupt;
struct dentry *event_heart_beat;
struct dentry *event_calibration;
struct dentry *event_rx_mismatch;
struct dentry *event_rx_mem_empty;
struct dentry *event_rx_pool;
struct dentry *event_oom_late;
struct dentry *event_phy_transmit_error;
struct dentry *event_tx_stuck;
struct dentry *ps_pspoll_timeouts;
struct dentry *ps_upsd_timeouts;
struct dentry *ps_upsd_max_sptime;
struct dentry *ps_upsd_max_apturn;
struct dentry *ps_pspoll_max_apturn;
struct dentry *ps_pspoll_utilization;
struct dentry *ps_upsd_utilization;
struct dentry *rxpipe_rx_prep_beacon_drop;
struct dentry *rxpipe_descr_host_int_trig_rx_data;
struct dentry *rxpipe_beacon_buffer_thres_host_int_trig_rx_data;
struct dentry *rxpipe_missed_beacon_host_int_trig_rx_data;
struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data;
struct dentry *tx_queue_len;
struct dentry *retry_count;
struct dentry *excessive_retries;
};
#define NUM_TX_QUEUES 4
#define NUM_RX_PKT_DESC 8
/* FW status registers */
struct wl1271_fw_status {
__le32 intr;
u8 fw_rx_counter;
u8 drv_rx_counter;
u8 reserved;
u8 tx_results_counter;
__le32 rx_pkt_descs[NUM_RX_PKT_DESC];
__le32 tx_released_blks[NUM_TX_QUEUES];
__le32 fw_localtime;
__le32 padding[2];
} __attribute__ ((packed));
struct wl1271_rx_mem_pool_addr {
u32 addr;
u32 addr_extra;
};
struct wl1271_scan {
u8 state;
u8 ssid[IW_ESSID_MAX_SIZE+1];
size_t ssid_len;
u8 active;
u8 high_prio;
u8 probe_requests;
};
struct wl1271 {
struct ieee80211_hw *hw;
bool mac80211_registered;
struct spi_device *spi;
void (*set_power)(bool enable);
int irq;
spinlock_t wl_lock;
enum wl1271_state state;
struct mutex mutex;
struct wl1271_partition_set part;
struct wl1271_chip chip;
int cmd_box_addr;
int event_box_addr;
u8 *fw;
size_t fw_len;
u8 *nvs;
size_t nvs_len;
u8 bssid[ETH_ALEN];
u8 mac_addr[ETH_ALEN];
u8 bss_type;
u8 ssid[IW_ESSID_MAX_SIZE + 1];
u8 ssid_len;
int channel;
struct wl1271_acx_mem_map *target_mem_map;
/* Accounting for allocated / available TX blocks on HW */
u32 tx_blocks_freed[NUM_TX_QUEUES];
u32 tx_blocks_available;
u8 tx_results_count;
/* Transmitted TX packets counter for chipset interface */
int tx_packets_count;
/* Time-offset between host and chipset clocks */
int time_offset;
/* Session counter for the chipset */
int session_counter;
/* Frames scheduled for transmission, not handled yet */
struct sk_buff_head tx_queue;
bool tx_queue_stopped;
struct work_struct tx_work;
/* Pending TX frames */
struct sk_buff *tx_frames[ACX_TX_DESCRIPTORS];
/* Security sequence number counters */
u8 tx_security_last_seq;
u16 tx_security_seq_16;
u32 tx_security_seq_32;
/* FW Rx counter */
u32 rx_counter;
/* Rx memory pool address */
struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;
/* The target interrupt mask */
struct work_struct irq_work;
/* The mbox event mask */
u32 event_mask;
/* Mailbox pointers */
u32 mbox_ptr[2];
/* Are we currently scanning */
bool scanning;
struct wl1271_scan scan;
/* Our association ID */
u16 aid;
/* currently configured rate set */
u32 basic_rate_set;
/* The current band */
enum ieee80211_band band;
/* Default key (for WEP) */
u32 default_key;
unsigned int rx_config;
unsigned int rx_filter;
/* is firmware in elp mode */
bool elp;
struct completion *elp_compl;
struct delayed_work elp_work;
/* we can be in psm, but not in elp, we have to differentiate */
bool psm;
/* PSM mode requested */
bool psm_requested;
/* retry counter for PSM entries */
u8 psm_entry_retry;
/* in dBm */
int power_level;
struct wl1271_stats stats;
struct wl1271_debugfs debugfs;
u32 buffer_32;
u32 buffer_cmd;
u32 buffer_busyword[WL1271_BUSY_WORD_CNT];
struct wl1271_fw_status *fw_status;
struct wl1271_tx_hw_res_if *tx_res_if;
struct ieee80211_vif *vif;
/* Used for a workaround to send disconnect before rejoining */
bool joined;
/* Current chipset configuration */
struct conf_drv_settings conf;
struct list_head list;
};
int wl1271_plt_start(struct wl1271 *wl);
int wl1271_plt_stop(struct wl1271 *wl);
#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
#define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */
#define WL1271_DEFAULT_POWER_LEVEL 0
#define WL1271_TX_QUEUE_MAX_LENGTH 20
/* WL1271 needs a 200ms sleep after power on */
#define WL1271_POWER_ON_SLEEP 200 /* in miliseconds */
static inline bool wl1271_11a_enabled(void)
{
#ifdef WL1271_80211A_ENABLED
return true;
#else
return false;
#endif
}
#endif
Reference in New Issue View Git Blame Copy Permalink