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linux/drivers/net/wireless/iwlwifi/iwl-3945.h
Wey-Yi Guy c341ddb283 iwlwifi: print limited number of event log when uCode error 
To help iwlagn uCode debugging, event log will dump to syslog when driver
detect uCode error occurred, but this only happen when compile with
CONFIG_IWLWIFI_DEBUG and debug flag is enabled; which is not always
the case. Also, there is another problem, if the flag is set, the entire
event log buffer will be dump to syslog, it can flood the syslog and
make it very difficult to debug the problem.

Change the default to only dump last 20 entries of event log to syslog
unless the following condition meets:
1. both compile with CONFIG_IWLWIFI_DEBUG and debug flag
is enabled, and then dump the entire event buffer to syslog.
2. dump event log request from debugfs

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Acked-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-23 17:05:37 -05:00

320 lines
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/******************************************************************************
*
* Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License 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 Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
/*
* Please use this file (iwl-3945.h) for driver implementation definitions.
* Please use iwl-3945-commands.h for uCode API definitions.
* Please use iwl-3945-hw.h for hardware-related definitions.
*/
#ifndef __iwl_3945_h__
#define __iwl_3945_h__
#include <linux/pci.h> /* for struct pci_device_id */
#include <linux/kernel.h>
#include <net/ieee80211_radiotap.h>
/* Hardware specific file defines the PCI IDs table for that hardware module */
extern struct pci_device_id iwl3945_hw_card_ids[];
#include "iwl-csr.h"
#include "iwl-prph.h"
#include "iwl-fh.h"
#include "iwl-3945-hw.h"
#include "iwl-debug.h"
#include "iwl-power.h"
#include "iwl-dev.h"
#include "iwl-led.h"
/* Highest firmware API version supported */
#define IWL3945_UCODE_API_MAX 2
/* Lowest firmware API version supported */
#define IWL3945_UCODE_API_MIN 1
#define IWL3945_FW_PRE "iwlwifi-3945-"
#define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
#define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
/* Default noise level to report when noise measurement is not available.
* This may be because we're:
* 1) Not associated (4965, no beacon statistics being sent to driver)
* 2) Scanning (noise measurement does not apply to associated channel)
* 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
* Use default noise value of -127 ... this is below the range of measurable
* Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
* Also, -127 works better than 0 when averaging frames with/without
* noise info (e.g. averaging might be done in app); measured dBm values are
* always negative ... using a negative value as the default keeps all
* averages within an s8's (used in some apps) range of negative values. */
#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
/* Module parameters accessible from iwl-*.c */
extern struct iwl_mod_params iwl3945_mod_params;
struct iwl3945_rate_scale_data {
u64 data;
s32 success_counter;
s32 success_ratio;
s32 counter;
s32 average_tpt;
unsigned long stamp;
};
struct iwl3945_rs_sta {
spinlock_t lock;
struct iwl_priv *priv;
s32 *expected_tpt;
unsigned long last_partial_flush;
unsigned long last_flush;
u32 flush_time;
u32 last_tx_packets;
u32 tx_packets;
u8 tgg;
u8 flush_pending;
u8 start_rate;
u8 ibss_sta_added;
struct timer_list rate_scale_flush;
struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945];
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *rs_sta_dbgfs_stats_table_file;
#endif
/* used to be in sta_info */
int last_txrate_idx;
};
struct iwl3945_sta_priv {
struct iwl3945_rs_sta rs_sta;
};
enum iwl3945_antenna {
IWL_ANTENNA_DIVERSITY,
IWL_ANTENNA_MAIN,
IWL_ANTENNA_AUX
};
/*
* RTS threshold here is total size [2347] minus 4 FCS bytes
* Per spec:
* a value of 0 means RTS on all data/management packets
* a value > max MSDU size means no RTS
* else RTS for data/management frames where MPDU is larger
* than RTS value.
*/
#define DEFAULT_RTS_THRESHOLD 2347U
#define MIN_RTS_THRESHOLD 0U
#define MAX_RTS_THRESHOLD 2347U
#define MAX_MSDU_SIZE 2304U
#define MAX_MPDU_SIZE 2346U
#define DEFAULT_BEACON_INTERVAL 100U
#define DEFAULT_SHORT_RETRY_LIMIT 7U
#define DEFAULT_LONG_RETRY_LIMIT 4U
#include "iwl-agn-rs.h"
#define IWL_TX_FIFO_AC0 0
#define IWL_TX_FIFO_AC1 1
#define IWL_TX_FIFO_AC2 2
#define IWL_TX_FIFO_AC3 3
#define IWL_TX_FIFO_HCCA_1 5
#define IWL_TX_FIFO_HCCA_2 6
#define IWL_TX_FIFO_NONE 7
#define IEEE80211_DATA_LEN 2304
#define IEEE80211_4ADDR_LEN 30
#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
struct iwl3945_frame {
union {
struct ieee80211_hdr frame;
struct iwl3945_tx_beacon_cmd beacon;
u8 raw[IEEE80211_FRAME_LEN];
u8 cmd[360];
} u;
struct list_head list;
};
#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
#define IWL_SUPPORTED_RATES_IE_LEN 8
#define SCAN_INTERVAL 100
#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
#define STATUS_HCMD_SYNC_ACTIVE 1 /* sync host command in progress */
#define STATUS_INT_ENABLED 2
#define STATUS_RF_KILL_HW 3
#define STATUS_INIT 5
#define STATUS_ALIVE 6
#define STATUS_READY 7
#define STATUS_TEMPERATURE 8
#define STATUS_GEO_CONFIGURED 9
#define STATUS_EXIT_PENDING 10
#define STATUS_STATISTICS 12
#define STATUS_SCANNING 13
#define STATUS_SCAN_ABORTING 14
#define STATUS_SCAN_HW 15
#define STATUS_POWER_PMI 16
#define STATUS_FW_ERROR 17
#define STATUS_CONF_PENDING 18
#define MAX_TID_COUNT 9
#define IWL_INVALID_RATE 0xFF
#define IWL_INVALID_VALUE -1
#define STA_PS_STATUS_WAKE 0
#define STA_PS_STATUS_SLEEP 1
struct iwl3945_ibss_seq {
u8 mac[ETH_ALEN];
u16 seq_num;
u16 frag_num;
unsigned long packet_time;
struct list_head list;
};
#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
x->u.rx_frame.stats.payload + \
x->u.rx_frame.stats.phy_count))
#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
IWL_RX_HDR(x)->payload + \
le16_to_cpu(IWL_RX_HDR(x)->len)))
#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
/******************************************************************************
*
* Functions implemented in iwl-base.c which are forward declared here
* for use by iwl-*.c
*
*****************************************************************************/
extern int iwl3945_calc_db_from_ratio(int sig_ratio);
extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
extern void iwl3945_rx_replenish(void *data);
extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
struct ieee80211_hdr *hdr,int left);
extern void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log);
extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
/*
* Currently used by iwl-3945-rs... look at restructuring so that it doesn't
* call this... todo... fix that.
*/
extern u8 iwl3945_sync_station(struct iwl_priv *priv, int sta_id,
u16 tx_rate, u8 flags);
/******************************************************************************
*
* Functions implemented in iwl-[34]*.c which are forward declared here
* for use by iwl-base.c
*
* NOTE: The implementation of these functions are hardware specific
* which is why they are in the hardware specific files (vs. iwl-base.c)
*
* Naming convention --
* iwl3945_ <-- Its part of iwlwifi (should be changed to iwl3945_)
* iwl3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
* iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
* iwl3945_bg_ <-- Called from work queue context
* iwl3945_mac_ <-- mac80211 callback
*
****************************************************************************/
extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv);
extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv);
extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv);
extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv);
extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv);
extern int iwl3945_hw_nic_init(struct iwl_priv *priv);
extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv);
extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv);
extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv);
extern int iwl3945_hw_nic_reset(struct iwl_priv *priv);
extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr, u16 len,
u8 reset, u8 pad);
extern void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
extern int iwl3945_hw_get_temperature(struct iwl_priv *priv);
extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
struct iwl3945_frame *frame, u8 rate);
void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct ieee80211_tx_info *info,
struct ieee80211_hdr *hdr,
int sta_id, int tx_id);
extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
extern void iwl3945_disable_events(struct iwl_priv *priv);
extern int iwl4965_get_temperature(const struct iwl_priv *priv);
extern void iwl3945_post_associate(struct iwl_priv *priv);
extern void iwl3945_config_ap(struct iwl_priv *priv);
/**
* iwl3945_hw_find_station - Find station id for a given BSSID
* @bssid: MAC address of station ID to find
*
* NOTE: This should not be hardware specific but the code has
* not yet been merged into a single common layer for managing the
* station tables.
*/
extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
/*
* Forward declare iwl-3945.c functions for iwl-base.c
*/
extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
u16 tx_rate, u8 flags);
extern const struct iwl_channel_info *iwl3945_get_channel_info(
const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
/* Requires full declaration of iwl_priv before including */
#include "iwl-io.h"
#endif
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