/****************************************************************************** * * Copyright(c) 2003 - 2008 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: * James P. Ketrenos * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ /* * Please use this file (iwl-4965.h) for driver implementation definitions. * Please use iwl-4965-commands.h for uCode API definitions. * Please use iwl-4965-hw.h for hardware-related definitions. */ #ifndef __iwl_4965_h__ #define __iwl_4965_h__ #include /* for struct pci_device_id */ #include #include #define DRV_NAME "iwl4965" #include "iwl-rfkill.h" #include "iwl-eeprom.h" #include "iwl-4965-hw.h" #include "iwl-csr.h" #include "iwl-prph.h" #include "iwl-debug.h" #include "iwl-led.h" #include "iwl-power.h" /* configuration for the iwl4965 */ extern struct iwl_cfg iwl4965_agn_cfg; extern struct iwl_cfg iwl5300_agn_cfg; extern struct iwl_cfg iwl5100_agn_cfg; extern struct iwl_cfg iwl5350_agn_cfg; /* Change firmware file name, using "-" and incrementing number, * *only* when uCode interface or architecture changes so that it * is not compatible with earlier drivers. * This number will also appear in << 8 position of 1st dword of uCode file */ #define IWL4965_UCODE_API "-1" /* CT-KILL constants */ #define CT_KILL_THRESHOLD 110 /* in Celsius */ /* 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) /* * 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 struct iwl4965_rx_mem_buffer { dma_addr_t dma_addr; struct sk_buff *skb; struct list_head list; }; /* * Generic queue structure * * Contains common data for Rx and Tx queues */ struct iwl4965_queue { int n_bd; /* number of BDs in this queue */ int write_ptr; /* 1-st empty entry (index) host_w*/ int read_ptr; /* last used entry (index) host_r*/ dma_addr_t dma_addr; /* physical addr for BD's */ int n_window; /* safe queue window */ u32 id; int low_mark; /* low watermark, resume queue if free * space more than this */ int high_mark; /* high watermark, stop queue if free * space less than this */ } __attribute__ ((packed)); #define MAX_NUM_OF_TBS (20) /* One for each TFD */ struct iwl4965_tx_info { struct ieee80211_tx_status status; struct sk_buff *skb[MAX_NUM_OF_TBS]; }; /** * struct iwl4965_tx_queue - Tx Queue for DMA * @q: generic Rx/Tx queue descriptor * @bd: base of circular buffer of TFDs * @cmd: array of command/Tx buffers * @dma_addr_cmd: physical address of cmd/tx buffer array * @txb: array of per-TFD driver data * @need_update: indicates need to update read/write index * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled * * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame * descriptors) and required locking structures. */ struct iwl4965_tx_queue { struct iwl4965_queue q; struct iwl4965_tfd_frame *bd; struct iwl_cmd *cmd; dma_addr_t dma_addr_cmd; struct iwl4965_tx_info *txb; int need_update; int sched_retry; int active; }; #define IWL_NUM_SCAN_RATES (2) struct iwl4965_channel_tgd_info { u8 type; s8 max_power; }; struct iwl4965_channel_tgh_info { s64 last_radar_time; }; /* current Tx power values to use, one for each rate for each channel. * requested power is limited by: * -- regulatory EEPROM limits for this channel * -- hardware capabilities (clip-powers) * -- spectrum management * -- user preference (e.g. iwconfig) * when requested power is set, base power index must also be set. */ struct iwl4965_channel_power_info { struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */ s8 power_table_index; /* actual (compenst'd) index into gain table */ s8 base_power_index; /* gain index for power at factory temp. */ s8 requested_power; /* power (dBm) requested for this chnl/rate */ }; /* current scan Tx power values to use, one for each scan rate for each * channel. */ struct iwl4965_scan_power_info { struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */ s8 power_table_index; /* actual (compenst'd) index into gain table */ s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */ }; /* For fat_extension_channel */ enum { HT_IE_EXT_CHANNEL_NONE = 0, HT_IE_EXT_CHANNEL_ABOVE, HT_IE_EXT_CHANNEL_INVALID, HT_IE_EXT_CHANNEL_BELOW, HT_IE_EXT_CHANNEL_MAX }; /* * One for each channel, holds all channel setup data * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant * with one another! */ #define IWL4965_MAX_RATE (33) struct iwl_channel_info { struct iwl4965_channel_tgd_info tgd; struct iwl4965_channel_tgh_info tgh; struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */ struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for * FAT channel */ u8 channel; /* channel number */ u8 flags; /* flags copied from EEPROM */ s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ s8 min_power; /* always 0 */ s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */ u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */ enum ieee80211_band band; /* Radio/DSP gain settings for each "normal" data Tx rate. * These include, in addition to RF and DSP gain, a few fields for * remembering/modifying gain settings (indexes). */ struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE]; /* FAT channel info */ s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */ s8 fat_min_power; /* always 0 */ s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */ u8 fat_flags; /* flags copied from EEPROM */ u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */ /* Radio/DSP gain settings for each scan rate, for directed scans. */ struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES]; }; struct iwl4965_clip_group { /* maximum power level to prevent clipping for each rate, derived by * us from this band's saturation power in EEPROM */ const s8 clip_powers[IWL_MAX_RATES]; }; #include "iwl-4965-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 /* Minimum number of queues. MAX_NUM is defined in hw specific files */ #define IWL_MIN_NUM_QUEUES 4 /* Power management (not Tx power) structures */ enum iwl_pwr_src { IWL_PWR_SRC_VMAIN, IWL_PWR_SRC_VAUX, }; #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 iwl4965_frame { union { struct ieee80211_hdr frame; struct iwl4965_tx_beacon_cmd beacon; u8 raw[IEEE80211_FRAME_LEN]; u8 cmd[360]; } u; struct list_head list; }; #define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf) #define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8) #define SEQ_TO_INDEX(x) ((u8)(x & 0xff)) #define INDEX_TO_SEQ(x) ((u8)(x & 0xff)) #define SEQ_HUGE_FRAME (0x4000) #define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000) #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) enum { /* CMD_SIZE_NORMAL = 0, */ CMD_SIZE_HUGE = (1 << 0), /* CMD_SYNC = 0, */ CMD_ASYNC = (1 << 1), /* CMD_NO_SKB = 0, */ CMD_WANT_SKB = (1 << 2), }; struct iwl_cmd; struct iwl_priv; struct iwl_cmd_meta { struct iwl_cmd_meta *source; union { struct sk_buff *skb; int (*callback)(struct iwl_priv *priv, struct iwl_cmd *cmd, struct sk_buff *skb); } __attribute__ ((packed)) u; /* The CMD_SIZE_HUGE flag bit indicates that the command * structure is stored at the end of the shared queue memory. */ u32 flags; } __attribute__ ((packed)); /** * struct iwl_cmd * * For allocation of the command and tx queues, this establishes the overall * size of the largest command we send to uCode, except for a scan command * (which is relatively huge; space is allocated separately). */ struct iwl_cmd { struct iwl_cmd_meta meta; /* driver data */ struct iwl_cmd_header hdr; /* uCode API */ union { struct iwl4965_addsta_cmd addsta; struct iwl4965_led_cmd led; u32 flags; u8 val8; u16 val16; u32 val32; struct iwl4965_bt_cmd bt; struct iwl4965_rxon_time_cmd rxon_time; struct iwl4965_powertable_cmd powertable; struct iwl4965_qosparam_cmd qosparam; struct iwl4965_tx_cmd tx; struct iwl4965_tx_beacon_cmd tx_beacon; struct iwl4965_rxon_assoc_cmd rxon_assoc; u8 *indirect; u8 payload[360]; } __attribute__ ((packed)) cmd; } __attribute__ ((packed)); struct iwl_host_cmd { u8 id; u16 len; struct iwl_cmd_meta meta; const void *data; }; #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \ sizeof(struct iwl_cmd_meta)) /* * RX related structures and functions */ #define RX_FREE_BUFFERS 64 #define RX_LOW_WATERMARK 8 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12 /** * struct iwl4965_rx_queue - Rx queue * @processed: Internal index to last handled Rx packet * @read: Shared index to newest available Rx buffer * @write: Shared index to oldest written Rx packet * @free_count: Number of pre-allocated buffers in rx_free * @rx_free: list of free SKBs for use * @rx_used: List of Rx buffers with no SKB * @need_update: flag to indicate we need to update read/write index * * NOTE: rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers */ struct iwl4965_rx_queue { __le32 *bd; dma_addr_t dma_addr; struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE]; u32 processed; u32 read; u32 write; u32 free_count; struct list_head rx_free; struct list_head rx_used; int need_update; spinlock_t lock; }; #define IWL_SUPPORTED_RATES_IE_LEN 8 #define SCAN_INTERVAL 100 #define MAX_A_CHANNELS 252 #define MIN_A_CHANNELS 7 #define MAX_B_CHANNELS 14 #define MIN_B_CHANNELS 1 #define MAX_TID_COUNT 9 #define IWL_INVALID_RATE 0xFF #define IWL_INVALID_VALUE -1 #ifdef CONFIG_IWL4965_HT /** * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack * @txq_id: Tx queue used for Tx attempt * @frame_count: # frames attempted by Tx command * @wait_for_ba: Expect block-ack before next Tx reply * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window * @bitmap1: High order, one bit for each frame pending ACK in Tx window * @rate_n_flags: Rate at which Tx was attempted * * If REPLY_TX indicates that aggregation was attempted, driver must wait * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info * until block ack arrives. */ struct iwl4965_ht_agg { u16 txq_id; u16 frame_count; u16 wait_for_ba; u16 start_idx; u64 bitmap; u32 rate_n_flags; #define IWL_AGG_OFF 0 #define IWL_AGG_ON 1 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2 #define IWL_EMPTYING_HW_QUEUE_DELBA 3 u8 state; }; #endif /* CONFIG_IWL4965_HT */ struct iwl4965_tid_data { u16 seq_number; u16 tfds_in_queue; #ifdef CONFIG_IWL4965_HT struct iwl4965_ht_agg agg; #endif /* CONFIG_IWL4965_HT */ }; struct iwl4965_hw_key { enum ieee80211_key_alg alg; int keylen; u8 keyidx; struct ieee80211_key_conf *conf; u8 key[32]; }; union iwl4965_ht_rate_supp { u16 rates; struct { u8 siso_rate; u8 mimo_rate; }; }; #ifdef CONFIG_IWL4965_HT #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3) #define CFG_HT_MPDU_DENSITY_2USEC (0x5) #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC struct iwl_ht_info { /* self configuration data */ u8 is_ht; u8 supported_chan_width; u16 tx_mimo_ps_mode; u8 is_green_field; u8 sgf; /* HT_SHORT_GI_* short guard interval */ u8 max_amsdu_size; u8 ampdu_factor; u8 mpdu_density; u8 supp_mcs_set[16]; /* BSS related data */ u8 control_channel; u8 extension_chan_offset; u8 tx_chan_width; u8 ht_protection; u8 non_GF_STA_present; }; #endif /*CONFIG_IWL4965_HT */ union iwl4965_qos_capabity { struct { u8 edca_count:4; /* bit 0-3 */ u8 q_ack:1; /* bit 4 */ u8 queue_request:1; /* bit 5 */ u8 txop_request:1; /* bit 6 */ u8 reserved:1; /* bit 7 */ } q_AP; struct { u8 acvo_APSD:1; /* bit 0 */ u8 acvi_APSD:1; /* bit 1 */ u8 ac_bk_APSD:1; /* bit 2 */ u8 ac_be_APSD:1; /* bit 3 */ u8 q_ack:1; /* bit 4 */ u8 max_len:2; /* bit 5-6 */ u8 more_data_ack:1; /* bit 7 */ } q_STA; u8 val; }; /* QoS structures */ struct iwl4965_qos_info { int qos_enable; int qos_active; union iwl4965_qos_capabity qos_cap; struct iwl4965_qosparam_cmd def_qos_parm; }; #define STA_PS_STATUS_WAKE 0 #define STA_PS_STATUS_SLEEP 1 struct iwl4965_station_entry { struct iwl4965_addsta_cmd sta; struct iwl4965_tid_data tid[MAX_TID_COUNT]; u8 used; u8 ps_status; struct iwl4965_hw_key keyinfo; }; /* one for each uCode image (inst/data, boot/init/runtime) */ struct fw_desc { void *v_addr; /* access by driver */ dma_addr_t p_addr; /* access by card's busmaster DMA */ u32 len; /* bytes */ }; /* uCode file layout */ struct iwl4965_ucode { __le32 ver; /* major/minor/subminor */ __le32 inst_size; /* bytes of runtime instructions */ __le32 data_size; /* bytes of runtime data */ __le32 init_size; /* bytes of initialization instructions */ __le32 init_data_size; /* bytes of initialization data */ __le32 boot_size; /* bytes of bootstrap instructions */ u8 data[0]; /* data in same order as "size" elements */ }; #define IWL_IBSS_MAC_HASH_SIZE 32 struct iwl4965_ibss_seq { u8 mac[ETH_ALEN]; u16 seq_num; u16 frag_num; unsigned long packet_time; struct list_head list; }; struct iwl_sensitivity_ranges { u16 min_nrg_cck; u16 max_nrg_cck; u16 nrg_th_cck; u16 nrg_th_ofdm; u16 auto_corr_min_ofdm; u16 auto_corr_min_ofdm_mrc; u16 auto_corr_min_ofdm_x1; u16 auto_corr_min_ofdm_mrc_x1; u16 auto_corr_max_ofdm; u16 auto_corr_max_ofdm_mrc; u16 auto_corr_max_ofdm_x1; u16 auto_corr_max_ofdm_mrc_x1; u16 auto_corr_max_cck; u16 auto_corr_max_cck_mrc; u16 auto_corr_min_cck; u16 auto_corr_min_cck_mrc; }; #define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ) /** * struct iwl_hw_params * @max_txq_num: Max # Tx queues supported * @tx_cmd_len: Size of Tx command (but not including frame itself) * @tx/rx_chains_num: Number of TX/RX chains * @valid_tx/rx_ant: usable antennas * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) * @max_rxq_log: Log-base-2 of max_rxq_size * @rx_buf_size: Rx buffer size * @max_stations: * @bcast_sta_id: * @fat_channel: is 40MHz width possible in band 2.4 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) * @sw_crypto: 0 for hw, 1 for sw * @max_xxx_size: for ucode uses * @ct_kill_threshold: temperature threshold * @struct iwl_sensitivity_ranges: range of sensitivity values */ struct iwl_hw_params { u16 max_txq_num; u16 tx_cmd_len; u8 tx_chains_num; u8 rx_chains_num; u8 valid_tx_ant; u8 valid_rx_ant; u16 max_rxq_size; u16 max_rxq_log; u32 rx_buf_size; u32 max_pkt_size; u8 max_stations; u8 bcast_sta_id; u8 fat_channel; u8 sw_crypto; u32 max_inst_size; u32 max_data_size; u32 max_bsm_size; u32 ct_kill_threshold; /* value in hw-dependent units */ #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB const struct iwl_sensitivity_ranges *sens; #endif }; #define HT_SHORT_GI_20MHZ_ONLY (1 << 0) #define HT_SHORT_GI_40MHZ_ONLY (1 << 1) #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\ x->u.rx_frame.stats.payload + \ x->u.rx_frame.stats.phy_count)) #define IWL_RX_END(x) ((struct iwl4965_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 * *****************************************************************************/ struct iwl4965_addsta_cmd; extern int iwl4965_send_add_station(struct iwl_priv *priv, struct iwl4965_addsta_cmd *sta, u8 flags); extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags, void *ht_data); extern int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header); extern int iwl4965_power_init_handle(struct iwl_priv *priv); extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv, struct iwl4965_rx_mem_buffer *rxb, void *data, short len, struct ieee80211_rx_status *stats, u16 phy_flags); extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header); extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv); extern void iwl4965_rx_queue_reset(struct iwl_priv *priv, struct iwl4965_rx_queue *rxq); extern int iwl4965_calc_db_from_ratio(int sig_ratio); extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm); extern int iwl4965_tx_queue_init(struct iwl_priv *priv, struct iwl4965_tx_queue *txq, int count, u32 id); extern void iwl4965_rx_replenish(void *data); extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq); extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv, struct ieee80211_hdr *hdr, const u8 *dest, int left); extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl4965_rx_queue *q); extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr); extern void iwl4965_update_chain_flags(struct iwl_priv *priv); int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); int iwl4965_init_geos(struct iwl_priv *priv); void iwl4965_free_geos(struct iwl_priv *priv); extern const u8 iwl4965_broadcast_addr[ETH_ALEN]; int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); /* * Currently used by iwl-3945-rs... look at restructuring so that it doesn't * call this... todo... fix that. */ extern u8 iwl4965_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 -- * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_) * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW) * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) * iwl4965_bg_ <-- Called from work queue context * iwl4965_mac_ <-- mac80211 callback * ****************************************************************************/ extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv); extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv); extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv); extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv); extern int iwl4965_hw_nic_init(struct iwl_priv *priv); extern int iwl4965_hw_nic_stop_master(struct iwl_priv *priv); extern void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv); extern void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv); extern int iwl4965_hw_nic_reset(struct iwl_priv *priv); extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd, dma_addr_t addr, u16 len); extern int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq); extern int iwl4965_hw_get_temperature(struct iwl_priv *priv); extern int iwl4965_hw_tx_queue_init(struct iwl_priv *priv, struct iwl4965_tx_queue *txq); extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, struct iwl4965_frame *frame, u8 rate); extern int iwl4965_hw_get_rx_read(struct iwl_priv *priv); extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv, struct iwl_cmd *cmd, struct ieee80211_tx_control *ctrl, struct ieee80211_hdr *hdr, int sta_id, int tx_id); extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv); extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power); extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv, struct iwl4965_rx_mem_buffer *rxb); extern void iwl4965_disable_events(struct iwl_priv *priv); extern int iwl4965_get_temperature(const struct iwl_priv *priv); /** * iwl_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 iwl_find_station(struct iwl_priv *priv, const u8 *bssid); extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel); extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); extern int iwl4965_queue_space(const struct iwl4965_queue *q); struct iwl_priv; extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio); /* * Forward declare iwl-4965.c functions for iwl-base.c */ extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv, struct iwl4965_tx_queue *txq, u16 byte_cnt); extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap); extern int iwl4965_alive_notify(struct iwl_priv *priv); extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode); extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv); extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, struct ieee80211_tx_control *control); #ifdef CONFIG_IWL4965_HT extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv, struct ieee80211_ht_info *ht_info, enum ieee80211_band band); void iwl4965_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info); void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index, struct ieee80211_ht_info *sta_ht_inf); int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw, enum ieee80211_ampdu_mlme_action action, const u8 *addr, u16 tid, u16 *ssn); int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id); #else static inline void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv, struct ieee80211_ht_info *ht_info, enum ieee80211_band band) {} #endif /*CONFIG_IWL4965_HT */ /* Structures, enum, and defines specific to the 4965 */ #define IWL4965_KW_SIZE 0x1000 /*4k */ struct iwl4965_kw { dma_addr_t dma_addr; void *v_addr; size_t size; }; #define IWL_CHANNEL_WIDTH_20MHZ 0 #define IWL_CHANNEL_WIDTH_40MHZ 1 #define IWL_MIMO_PS_STATIC 0 #define IWL_MIMO_PS_NONE 3 #define IWL_MIMO_PS_DYNAMIC 1 #define IWL_MIMO_PS_INVALID 2 #define IWL_OPERATION_MODE_AUTO 0 #define IWL_OPERATION_MODE_HT_ONLY 1 #define IWL_OPERATION_MODE_MIXED 2 #define IWL_OPERATION_MODE_20MHZ 3 #define IWL_EXT_CHANNEL_OFFSET_NONE 0 #define IWL_EXT_CHANNEL_OFFSET_ABOVE 1 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1 2 #define IWL_EXT_CHANNEL_OFFSET_BELOW 3 #define IWL_TX_CRC_SIZE 4 #define IWL_TX_DELIMITER_SIZE 4 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 struct iwl4965_lq_mngr { spinlock_t lock; s32 max_window_size; s32 *expected_tpt; u8 *next_higher_rate; u8 *next_lower_rate; unsigned long stamp; unsigned long stamp_last; u32 flush_time; u32 tx_packets; u8 lq_ready; }; /* Sensitivity and chain noise calibration */ #define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1) #define INITIALIZATION_VALUE 0xFFFF #define CAL_NUM_OF_BEACONS 20 #define MAXIMUM_ALLOWED_PATHLOSS 15 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 #define MAX_FA_OFDM 50 #define MIN_FA_OFDM 5 #define MAX_FA_CCK 50 #define MIN_FA_CCK 5 #define AUTO_CORR_STEP_OFDM 1 #define AUTO_CORR_STEP_CCK 3 #define AUTO_CORR_MAX_TH_CCK 160 #define NRG_DIFF 2 #define NRG_STEP_CCK 2 #define NRG_MARGIN 8 #define MAX_NUMBER_CCK_NO_FA 100 #define AUTO_CORR_CCK_MIN_VAL_DEF (125) #define CHAIN_A 0 #define CHAIN_B 1 #define CHAIN_C 2 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 #define ALL_BAND_FILTER 0xFF00 #define IN_BAND_FILTER 0xFF #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF #define NRG_NUM_PREV_STAT_L 20 #define NUM_RX_CHAINS 3 enum iwl4965_false_alarm_state { IWL_FA_TOO_MANY = 0, IWL_FA_TOO_FEW = 1, IWL_FA_GOOD_RANGE = 2, }; enum iwl4965_chain_noise_state { IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ IWL_CHAIN_NOISE_ACCUMULATE = 1, IWL_CHAIN_NOISE_CALIBRATED = 2, }; enum iwl4965_calib_enabled_state { IWL_CALIB_DISABLED = 0, /* must be 0 */ IWL_CALIB_ENABLED = 1, }; struct statistics_general_data { u32 beacon_silence_rssi_a; u32 beacon_silence_rssi_b; u32 beacon_silence_rssi_c; u32 beacon_energy_a; u32 beacon_energy_b; u32 beacon_energy_c; }; #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB /* Sensitivity calib data */ struct iwl_sensitivity_data { u32 auto_corr_ofdm; u32 auto_corr_ofdm_mrc; u32 auto_corr_ofdm_x1; u32 auto_corr_ofdm_mrc_x1; u32 auto_corr_cck; u32 auto_corr_cck_mrc; u32 last_bad_plcp_cnt_ofdm; u32 last_fa_cnt_ofdm; u32 last_bad_plcp_cnt_cck; u32 last_fa_cnt_cck; u32 nrg_curr_state; u32 nrg_prev_state; u32 nrg_value[10]; u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; u32 nrg_silence_ref; u32 nrg_energy_idx; u32 nrg_silence_idx; u32 nrg_th_cck; s32 nrg_auto_corr_silence_diff; u32 num_in_cck_no_fa; u32 nrg_th_ofdm; }; /* Chain noise (differential Rx gain) calib data */ struct iwl_chain_noise_data { u8 state; u16 beacon_count; u32 chain_noise_a; u32 chain_noise_b; u32 chain_noise_c; u32 chain_signal_a; u32 chain_signal_b; u32 chain_signal_c; u8 disconn_array[NUM_RX_CHAINS]; u8 delta_gain_code[NUM_RX_CHAINS]; u8 radio_write; }; #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */ #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT enum { MEASUREMENT_READY = (1 << 0), MEASUREMENT_ACTIVE = (1 << 1), }; #endif #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */ struct iwl_priv { /* ieee device used by generic ieee processing code */ struct ieee80211_hw *hw; struct ieee80211_channel *ieee_channels; struct ieee80211_rate *ieee_rates; struct iwl_cfg *cfg; /* temporary frame storage list */ struct list_head free_frames; int frames_count; enum ieee80211_band band; int alloc_rxb_skb; bool add_radiotap; void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, struct iwl4965_rx_mem_buffer *rxb); struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT /* spectrum measurement report caching */ struct iwl4965_spectrum_notification measure_report; u8 measurement_status; #endif /* ucode beacon time */ u32 ucode_beacon_time; /* we allocate array of iwl4965_channel_info for NIC's valid channels. * Access via channel # using indirect index array */ struct iwl_channel_info *channel_info; /* channel info array */ u8 channel_count; /* # of channels */ /* each calibration channel group in the EEPROM has a derived * clip setting for each rate. */ const struct iwl4965_clip_group clip_groups[5]; /* thermal calibration */ s32 temperature; /* degrees Kelvin */ s32 last_temperature; /* Scan related variables */ unsigned long last_scan_jiffies; unsigned long next_scan_jiffies; unsigned long scan_start; unsigned long scan_pass_start; unsigned long scan_start_tsf; int scan_bands; int one_direct_scan; u8 direct_ssid_len; u8 direct_ssid[IW_ESSID_MAX_SIZE]; struct iwl4965_scan_cmd *scan; /* spinlock */ spinlock_t lock; /* protect general shared data */ spinlock_t hcmd_lock; /* protect hcmd */ struct mutex mutex; /* basic pci-network driver stuff */ struct pci_dev *pci_dev; /* pci hardware address support */ void __iomem *hw_base; u32 hw_rev; u32 hw_wa_rev; u8 rev_id; /* uCode images, save to reload in case of failure */ struct fw_desc ucode_code; /* runtime inst */ struct fw_desc ucode_data; /* runtime data original */ struct fw_desc ucode_data_backup; /* runtime data save/restore */ struct fw_desc ucode_init; /* initialization inst */ struct fw_desc ucode_init_data; /* initialization data */ struct fw_desc ucode_boot; /* bootstrap inst */ struct iwl4965_rxon_time_cmd rxon_timing; /* We declare this const so it can only be * changed via explicit cast within the * routines that actually update the physical * hardware */ const struct iwl4965_rxon_cmd active_rxon; struct iwl4965_rxon_cmd staging_rxon; int error_recovering; struct iwl4965_rxon_cmd recovery_rxon; /* 1st responses from initialize and runtime uCode images. * 4965's initialize alive response contains some calibration data. */ struct iwl4965_init_alive_resp card_alive_init; struct iwl4965_alive_resp card_alive; #ifdef CONFIG_IWLWIFI_RFKILL struct iwl_rfkill_mngr rfkill_mngr; #endif #ifdef CONFIG_IWLWIFI_LEDS struct iwl4965_led led[IWL_LED_TRG_MAX]; unsigned long last_blink_time; u8 last_blink_rate; u8 allow_blinking; u64 led_tpt; #endif u16 active_rate; u16 active_rate_basic; u8 assoc_station_added; u8 use_ant_b_for_management_frame; /* Tx antenna selection */ u8 start_calib; #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB struct iwl_sensitivity_data sensitivity_data; struct iwl_chain_noise_data chain_noise_data; __le16 sensitivity_tbl[HD_TABLE_SIZE]; #endif /*CONFIG_IWLWIFI_RUN_TIME_CALIB*/ #ifdef CONFIG_IWL4965_HT struct iwl_ht_info current_ht_config; #endif u8 last_phy_res[100]; /* Rate scaling data */ struct iwl4965_lq_mngr lq_mngr; /* Rate scaling data */ s8 data_retry_limit; u8 retry_rate; wait_queue_head_t wait_command_queue; int activity_timer_active; /* Rx and Tx DMA processing queues */ struct iwl4965_rx_queue rxq; struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES]; unsigned long txq_ctx_active_msk; struct iwl4965_kw kw; /* keep warm address */ u32 scd_base_addr; /* scheduler sram base address */ unsigned long status; int last_rx_rssi; /* From Rx packet statisitics */ int last_rx_noise; /* From beacon statistics */ /* counts mgmt, ctl, and data packets */ struct traffic_stats { u32 cnt; u64 bytes; } tx_stats[3], rx_stats[3]; struct iwl_power_mgr power_data; struct iwl4965_notif_statistics statistics; unsigned long last_statistics_time; /* context information */ u8 essid[IW_ESSID_MAX_SIZE]; u8 essid_len; u16 rates_mask; u32 power_mode; u32 antenna; u8 bssid[ETH_ALEN]; u16 rts_threshold; u8 mac_addr[ETH_ALEN]; /*station table variables */ spinlock_t sta_lock; int num_stations; struct iwl4965_station_entry stations[IWL_STATION_COUNT]; struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; u8 default_wep_key; u8 key_mapping_key; unsigned long ucode_key_table; /* Indication if ieee80211_ops->open has been called */ u8 is_open; u8 mac80211_registered; u32 notif_missed_beacons; /* Rx'd packet timing information */ u32 last_beacon_time; u64 last_tsf; /* Duplicate packet detection */ u16 last_seq_num; u16 last_frag_num; unsigned long last_packet_time; /* Hash table for finding stations in IBSS network */ struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE]; /* eeprom */ u8 *eeprom; struct iwl_eeprom_calib_info *calib_info; enum ieee80211_if_types iw_mode; struct sk_buff *ibss_beacon; /* Last Rx'd beacon timestamp */ u64 timestamp; u16 beacon_int; struct ieee80211_vif *vif; struct iwl_hw_params hw_params; /* driver/uCode shared Tx Byte Counts and Rx status */ void *shared_virt; /* Physical Pointer to Tx Byte Counts and Rx status */ dma_addr_t shared_phys; /* Current association information needed to configure the * hardware */ u16 assoc_id; u16 assoc_capability; u8 ps_mode; struct iwl4965_qos_info qos_data; struct workqueue_struct *workqueue; struct work_struct up; struct work_struct restart; struct work_struct calibrated_work; struct work_struct scan_completed; struct work_struct rx_replenish; struct work_struct rf_kill; struct work_struct abort_scan; struct work_struct update_link_led; struct work_struct auth_work; struct work_struct report_work; struct work_struct request_scan; struct work_struct beacon_update; struct tasklet_struct irq_tasklet; struct delayed_work init_alive_start; struct delayed_work alive_start; struct delayed_work activity_timer; struct delayed_work thermal_periodic; struct delayed_work gather_stats; struct delayed_work scan_check; struct delayed_work post_associate; #define IWL_DEFAULT_TX_POWER 0x0F s8 user_txpower_limit; s8 max_channel_txpower_limit; #ifdef CONFIG_PM u32 pm_state[16]; #endif #ifdef CONFIG_IWLWIFI_DEBUG /* debugging info */ u32 framecnt_to_us; atomic_t restrict_refcnt; #ifdef CONFIG_IWLWIFI_DEBUGFS /* debugfs */ struct iwl_debugfs *dbgfs; #endif /* CONFIG_IWLWIFI_DEBUGFS */ #endif /* CONFIG_IWLWIFI_DEBUG */ struct work_struct txpower_work; #ifdef CONFIG_IWL4965_RUN_TIME_CALIB struct work_struct sensitivity_work; #endif struct timer_list statistics_periodic; }; /*iwl_priv */ static inline int iwl_is_associated(struct iwl_priv *priv) { return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; } static inline int is_channel_valid(const struct iwl_channel_info *ch_info) { if (ch_info == NULL) return 0; return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; } static inline int is_channel_radar(const struct iwl_channel_info *ch_info) { return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; } static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info) { return ch_info->band == IEEE80211_BAND_5GHZ; } static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info) { return ch_info->band == IEEE80211_BAND_2GHZ; } static inline int is_channel_passive(const struct iwl_channel_info *ch) { return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; } static inline int is_channel_ibss(const struct iwl_channel_info *ch) { return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; } extern const struct iwl_channel_info *iwl_get_channel_info( const struct iwl_priv *priv, enum ieee80211_band band, u16 channel); /* Requires full declaration of iwl_priv before including */ #endif /* __iwl4965_4965_h__ */