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/******************************************************************************
*
* Copyright(c) 2003 - 2011 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 __il_3945_h__
#define __il_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 const struct pci_device_id il3945_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 IL3945_UCODE_API_MAX 2
/* Lowest firmware API version supported */
#define IL3945_UCODE_API_MIN 1
#define IL3945_FW_PRE "iwlwifi-3945-"
#define _IL3945_MODULE_FIRMWARE(api) IL3945_FW_PRE #api ".ucode"
#define IL3945_MODULE_FIRMWARE(api) _IL3945_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 IL_NOISE_MEAS_NOT_AVAILABLE (-127)
/* Module parameters accessible from iwl-*.c */
extern struct il_mod_params il3945_mod_params;
struct il3945_rate_scale_data {
u64 data;
s32 success_counter;
s32 success_ratio;
s32 counter;
s32 average_tpt;
unsigned long stamp;
};
struct il3945_rs_sta {
spinlock_t lock;
struct il_priv *il;
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;
struct timer_list rate_scale_flush;
struct il3945_rate_scale_data win[IL_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;
};
/*
* The common struct MUST be first because it is shared between
* 3945 and 4965!
*/
struct il3945_sta_priv {
struct il_station_priv_common common;
struct il3945_rs_sta rs_sta;
};
enum il3945_antenna {
IL_ANTENNA_DIVERSITY,
IL_ANTENNA_MAIN,
IL_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
#define IL_TX_FIFO_AC0 0
#define IL_TX_FIFO_AC1 1
#define IL_TX_FIFO_AC2 2
#define IL_TX_FIFO_AC3 3
#define IL_TX_FIFO_HCCA_1 5
#define IL_TX_FIFO_HCCA_2 6
#define IL_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 il3945_frame {
union {
struct ieee80211_hdr frame;
struct il3945_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 IL_SUPPORTED_RATES_IE_LEN 8
#define SCAN_INTERVAL 100
#define MAX_TID_COUNT 9
#define IL_INVALID_RATE 0xFF
#define IL_INVALID_VALUE -1
#define STA_PS_STATUS_WAKE 0
#define STA_PS_STATUS_SLEEP 1
struct il3945_ibss_seq {
u8 mac[ETH_ALEN];
u16 seq_num;
u16 frag_num;
unsigned long packet_time;
struct list_head list;
};
#define IL_RX_HDR(x) ((struct il3945_rx_frame_hdr *)(\
x->u.rx_frame.stats.payload + \
x->u.rx_frame.stats.phy_count))
#define IL_RX_END(x) ((struct il3945_rx_frame_end *)(\
IL_RX_HDR(x)->payload + \
le16_to_cpu(IL_RX_HDR(x)->len)))
#define IL_RX_STATS(x) (&x->u.rx_frame.stats)
#define IL_RX_DATA(x) (IL_RX_HDR(x)->payload)
/******************************************************************************
*
* Functions implemented in iwl3945-base.c which are forward declared here
* for use by iwl-*.c
*
*****************************************************************************/
extern int il3945_calc_db_from_ratio(int sig_ratio);
extern void il3945_rx_replenish(void *data);
extern void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq);
extern unsigned int il3945_fill_beacon_frame(struct il_priv *il,
struct ieee80211_hdr *hdr, int left);
extern int il3945_dump_nic_event_log(struct il_priv *il, bool full_log,
char **buf, bool display);
extern void il3945_dump_nic_error_log(struct il_priv *il);
/******************************************************************************
*
* Functions implemented in iwl-[34]*.c which are forward declared here
* for use by iwl3945-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 --
* il3945_ <-- Its part of iwlwifi (should be changed to il3945_)
* il3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
* iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
* il3945_bg_ <-- Called from work queue context
* il3945_mac_ <-- mac80211 callback
*
****************************************************************************/
extern void il3945_hw_rx_handler_setup(struct il_priv *il);
extern void il3945_hw_setup_deferred_work(struct il_priv *il);
extern void il3945_hw_cancel_deferred_work(struct il_priv *il);
extern int il3945_hw_rxq_stop(struct il_priv *il);
extern int il3945_hw_set_hw_params(struct il_priv *il);
extern int il3945_hw_nic_init(struct il_priv *il);
extern int il3945_hw_nic_stop_master(struct il_priv *il);
extern void il3945_hw_txq_ctx_free(struct il_priv *il);
extern void il3945_hw_txq_ctx_stop(struct il_priv *il);
extern int il3945_hw_nic_reset(struct il_priv *il);
extern int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il,
struct il_tx_queue *txq,
dma_addr_t addr, u16 len,
u8 reset, u8 pad);
extern void il3945_hw_txq_free_tfd(struct il_priv *il,
struct il_tx_queue *txq);
extern int il3945_hw_get_temperature(struct il_priv *il);
extern int il3945_hw_tx_queue_init(struct il_priv *il,
struct il_tx_queue *txq);
extern unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il,
struct il3945_frame *frame, u8 rate);
void il3945_hw_build_tx_cmd_rate(struct il_priv *il,
struct il_device_cmd *cmd,
struct ieee80211_tx_info *info,
struct ieee80211_hdr *hdr,
int sta_id, int tx_id);
extern int il3945_hw_reg_send_txpower(struct il_priv *il);
extern int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power);
extern void il3945_hw_rx_statistics(struct il_priv *il,
struct il_rx_mem_buffer *rxb);
void il3945_reply_statistics(struct il_priv *il,
struct il_rx_mem_buffer *rxb);
extern void il3945_disable_events(struct il_priv *il);
extern int il4965_get_temperature(const struct il_priv *il);
extern void il3945_post_associate(struct il_priv *il);
extern void il3945_config_ap(struct il_priv *il);
extern int il3945_commit_rxon(struct il_priv *il,
struct il_rxon_context *ctx);
/**
* il3945_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 il3945_hw_find_station(struct il_priv *il, const u8 *bssid);
extern struct ieee80211_ops il3945_hw_ops;
/*
* Forward declare iwl-3945.c functions for iwl3945-base.c
*/
extern __le32 il3945_get_antenna_flags(const struct il_priv *il);
extern int il3945_init_hw_rate_table(struct il_priv *il);
extern void il3945_reg_txpower_periodic(struct il_priv *il);
extern int il3945_txpower_set_from_eeprom(struct il_priv *il);
extern const struct il_channel_info *il3945_get_channel_info(
const struct il_priv *il, enum ieee80211_band band, u16 channel);
extern int il3945_rs_next_rate(struct il_priv *il, int rate);
/* scanning */
int il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif);
void il3945_post_scan(struct il_priv *il);
/* rates */
extern const struct il3945_rate_info il3945_rates[IL_RATE_COUNT_3945];
/* Requires full declaration of il_priv before including */
#include "iwl-io.h"
#endif
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