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-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945.h950
1 files changed, 943 insertions, 7 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 813902e9f8c2..20b925f57e35 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -23,19 +23,955 @@
* 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[];
+
+#define DRV_NAME "iwl3945"
+#include "iwl-3945-hw.h"
+#include "iwl-prph.h"
+#include "iwl-3945-debug.h"
+
+/* 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 int iwl3945_param_hwcrypto;
+extern int iwl3945_param_queues_num;
+
+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 IWL_RX_BUF_SIZE 3000U
+#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 iwl3945_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 iwl3945_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 iwl3945_tx_info {
+ struct ieee80211_tx_status status;
+ struct sk_buff *skb[MAX_NUM_OF_TBS];
+};
+
+/**
+ * struct iwl3945_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
+ *
+ * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
+ * descriptors) and required locking structures.
+ */
+struct iwl3945_tx_queue {
+ struct iwl3945_queue q;
+ struct iwl3945_tfd_frame *bd;
+ struct iwl3945_cmd *cmd;
+ dma_addr_t dma_addr_cmd;
+ struct iwl3945_tx_info *txb;
+ int need_update;
+ int active;
+};
+
+#define IWL_NUM_SCAN_RATES (2)
+
+struct iwl3945_channel_tgd_info {
+ u8 type;
+ s8 max_power;
+};
+
+struct iwl3945_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 iwl3945_channel_power_info {
+ struct iwl3945_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 iwl3945_scan_power_info {
+ struct iwl3945_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 */
+};
+
+/*
+ * 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 iwl3945_channel_info {
+ struct iwl3945_channel_tgd_info tgd;
+ struct iwl3945_channel_tgh_info tgh;
+ struct iwl3945_eeprom_channel eeprom; /* EEPROM regulatory limit */
+ struct iwl3945_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) */
+ 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 */
+ u8 phymode; /* MODE_IEEE80211{A,B,G} */
+
+ /* 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 iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
+
+ /* Radio/DSP gain settings for each scan rate, for directed scans. */
+ struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
+};
+
+struct iwl3945_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-3945-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 */
+
+struct iwl3945_power_vec_entry {
+ struct iwl3945_powertable_cmd cmd;
+ u8 no_dtim;
+};
+#define IWL_POWER_RANGE_0 (0)
+#define IWL_POWER_RANGE_1 (1)
+
+#define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
+#define IWL_POWER_INDEX_3 0x03
+#define IWL_POWER_INDEX_5 0x05
+#define IWL_POWER_AC 0x06
+#define IWL_POWER_BATTERY 0x07
+#define IWL_POWER_LIMIT 0x07
+#define IWL_POWER_MASK 0x0F
+#define IWL_POWER_ENABLED 0x10
+#define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
+
+struct iwl3945_power_mgr {
+ spinlock_t lock;
+ struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
+ struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
+ u8 active_index;
+ u32 dtim_val;
+};
+
+#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_QUEUE(x) ((x >> 8) & 0xbf)
+#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
+#define SEQ_TO_INDEX(x) (x & 0xff)
+#define INDEX_TO_SEQ(x) (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 iwl3945_cmd;
+struct iwl3945_priv;
+
+struct iwl3945_cmd_meta {
+ struct iwl3945_cmd_meta *source;
+ union {
+ struct sk_buff *skb;
+ int (*callback)(struct iwl3945_priv *priv,
+ struct iwl3945_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 iwl3945_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 iwl3945_cmd {
+ struct iwl3945_cmd_meta meta;
+ struct iwl3945_cmd_header hdr;
+ union {
+ struct iwl3945_addsta_cmd addsta;
+ struct iwl3945_led_cmd led;
+ u32 flags;
+ u8 val8;
+ u16 val16;
+ u32 val32;
+ struct iwl3945_bt_cmd bt;
+ struct iwl3945_rxon_time_cmd rxon_time;
+ struct iwl3945_powertable_cmd powertable;
+ struct iwl3945_qosparam_cmd qosparam;
+ struct iwl3945_tx_cmd tx;
+ struct iwl3945_tx_beacon_cmd tx_beacon;
+ struct iwl3945_rxon_assoc_cmd rxon_assoc;
+ u8 *indirect;
+ u8 payload[360];
+ } __attribute__ ((packed)) cmd;
+} __attribute__ ((packed));
+
+struct iwl3945_host_cmd {
+ u8 id;
+ u16 len;
+ struct iwl3945_cmd_meta meta;
+ const void *data;
+};
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
+ sizeof(struct iwl3945_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 iwl3945_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 iwl3945_rx_mem_buffers
+ */
+struct iwl3945_rx_queue {
+ __le32 *bd;
+ dma_addr_t dma_addr;
+ struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
+ struct iwl3945_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 STATUS_HCMD_ACTIVE 0 /* host command in progress */
+#define STATUS_INT_ENABLED 1
+#define STATUS_RF_KILL_HW 2
+#define STATUS_RF_KILL_SW 3
+#define STATUS_INIT 4
+#define STATUS_ALIVE 5
+#define STATUS_READY 6
+#define STATUS_TEMPERATURE 7
+#define STATUS_GEO_CONFIGURED 8
+#define STATUS_EXIT_PENDING 9
+#define STATUS_IN_SUSPEND 10
+#define STATUS_STATISTICS 11
+#define STATUS_SCANNING 12
+#define STATUS_SCAN_ABORTING 13
+#define STATUS_SCAN_HW 14
+#define STATUS_POWER_PMI 15
+#define STATUS_FW_ERROR 16
+#define STATUS_CONF_PENDING 17
+
+#define MAX_TID_COUNT 9
+
+#define IWL_INVALID_RATE 0xFF
+#define IWL_INVALID_VALUE -1
+
+struct iwl3945_tid_data {
+ u16 seq_number;
+};
+
+struct iwl3945_hw_key {
+ enum ieee80211_key_alg alg;
+ int keylen;
+ u8 key[32];
+};
+
+union iwl3945_ht_rate_supp {
+ u16 rates;
+ struct {
+ u8 siso_rate;
+ u8 mimo_rate;
+ };
+};
+
+#ifdef CONFIG_IWL3945_QOS
+
+union iwl3945_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 iwl3945_qos_info {
+ int qos_enable;
+ int qos_active;
+ union iwl3945_qos_capabity qos_cap;
+ struct iwl3945_qosparam_cmd def_qos_parm;
+};
+#endif /*CONFIG_IWL3945_QOS */
+
+#define STA_PS_STATUS_WAKE 0
+#define STA_PS_STATUS_SLEEP 1
+
+struct iwl3945_station_entry {
+ struct iwl3945_addsta_cmd sta;
+ struct iwl3945_tid_data tid[MAX_TID_COUNT];
+ union {
+ struct {
+ u8 rate;
+ u8 flags;
+ } s;
+ u16 rate_n_flags;
+ } current_rate;
+ u8 used;
+ u8 ps_status;
+ struct iwl3945_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 iwl3945_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 iwl3945_ibss_seq {
+ u8 mac[ETH_ALEN];
+ u16 seq_num;
+ u16 frag_num;
+ unsigned long packet_time;
+ struct list_head list;
+};
+
+/**
+ * struct iwl3945_driver_hw_info
+ * @max_txq_num: Max # Tx queues supported
+ * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
+ * @tx_cmd_len: Size of Tx command (but not including frame itself)
+ * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
+ * @rx_buf_size:
+ * @max_pkt_size:
+ * @max_rxq_log: Log-base-2 of max_rxq_size
+ * @max_stations:
+ * @bcast_sta_id:
+ * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
+ * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
+ */
+struct iwl3945_driver_hw_info {
+ u16 max_txq_num;
+ u16 ac_queue_count;
+ u16 tx_cmd_len;
+ u16 max_rxq_size;
+ u32 rx_buf_size;
+ u32 max_pkt_size;
+ u16 max_rxq_log;
+ u8 max_stations;
+ u8 bcast_sta_id;
+ void *shared_virt;
+ dma_addr_t shared_phys;
+};
+
+#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
+ *
+ *****************************************************************************/
+struct iwl3945_addsta_cmd;
+extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
+ struct iwl3945_addsta_cmd *sta, u8 flags);
+extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
+ int is_ap, u8 flags);
+extern int iwl3945_is_network_packet(struct iwl3945_priv *priv,
+ struct ieee80211_hdr *header);
+extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
+extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
+#ifdef CONFIG_IWL3945_DEBUG
+extern void iwl3945_report_frame(struct iwl3945_priv *priv,
+ struct iwl3945_rx_packet *pkt,
+ struct ieee80211_hdr *header, int group100);
+#else
+static inline void iwl3945_report_frame(struct iwl3945_priv *priv,
+ struct iwl3945_rx_packet *pkt,
+ struct ieee80211_hdr *header,
+ int group100) {}
+#endif
+extern void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb,
+ void *data, short len,
+ struct ieee80211_rx_status *stats,
+ u16 phy_flags);
+extern int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv,
+ struct ieee80211_hdr *header);
+extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
+extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
+ struct iwl3945_rx_queue *rxq);
+extern int iwl3945_calc_db_from_ratio(int sig_ratio);
+extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
+extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq, int count, u32 id);
+extern void iwl3945_rx_replenish(void *data);
+extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
+extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
+ const void *data);
+extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
+ struct iwl3945_host_cmd *cmd);
+extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left);
+extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
+ struct iwl3945_rx_queue *q);
+extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
+extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
+ u32 decrypt_res,
+ struct ieee80211_rx_status *stats);
+extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
+
+/*
+ * 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 iwl3945_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 iwl3945_priv *priv);
+extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
+extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
+extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
+extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
+extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
+extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
+extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
+extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
+extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
+extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
+ dma_addr_t addr, u16 len);
+extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
+extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
+extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq);
+extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
+ struct iwl3945_frame *frame, u8 rate);
+extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
+extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
+ struct iwl3945_cmd *cmd,
+ struct ieee80211_tx_control *ctrl,
+ struct ieee80211_hdr *hdr,
+ int sta_id, int tx_id);
+extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
+extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
+extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb);
+extern void iwl3945_disable_events(struct iwl3945_priv *priv);
+extern int iwl4965_get_temperature(const struct iwl3945_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 iwl3945_priv *priv, const u8 *bssid);
+
+extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
+
/*
* Forward declare iwl-3945.c functions for iwl-base.c
*/
-extern int iwl_eeprom_aqcuire_semaphore(struct iwl_priv *priv);
-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 void iwl3945_bg_reg_txpower_periodic(struct work_struct *work);
-extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
-extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
+extern int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv);
+extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
+extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
+extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
+extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
+extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
u16 tx_rate, u8 flags);
+
+
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+
+enum {
+ MEASUREMENT_READY = (1 << 0),
+ MEASUREMENT_ACTIVE = (1 << 1),
+};
+
+#endif
+
+struct iwl3945_priv {
+
+ /* ieee device used by generic ieee processing code */
+ struct ieee80211_hw *hw;
+ struct ieee80211_channel *ieee_channels;
+ struct ieee80211_rate *ieee_rates;
+
+ /* temporary frame storage list */
+ struct list_head free_frames;
+ int frames_count;
+
+ u8 phymode;
+ int alloc_rxb_skb;
+ bool add_radiotap;
+
+ void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb);
+
+ const struct ieee80211_hw_mode *modes;
+
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+ /* spectrum measurement report caching */
+ struct iwl3945_spectrum_notification measure_report;
+ u8 measurement_status;
+#endif
+ /* ucode beacon time */
+ u32 ucode_beacon_time;
+
+ /* we allocate array of iwl3945_channel_info for NIC's valid channels.
+ * Access via channel # using indirect index array */
+ struct iwl3945_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 iwl3945_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 iwl3945_scan_cmd *scan;
+ u8 only_active_channel;
+
+ /* 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;
+
+ /* 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 iwl3945_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 iwl3945_rxon_cmd active_rxon;
+ struct iwl3945_rxon_cmd staging_rxon;
+
+ int error_recovering;
+ struct iwl3945_rxon_cmd recovery_rxon;
+
+ /* 1st responses from initialize and runtime uCode images.
+ * 4965's initialize alive response contains some calibration data. */
+ struct iwl3945_init_alive_resp card_alive_init;
+ struct iwl3945_alive_resp card_alive;
+
+#ifdef LED
+ /* LED related variables */
+ struct iwl3945_activity_blink activity;
+ unsigned long led_packets;
+ int led_state;
+#endif
+
+ u16 active_rate;
+ u16 active_rate_basic;
+
+ u8 call_post_assoc_from_beacon;
+ u8 assoc_station_added;
+ /* 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 iwl3945_rx_queue rxq;
+ struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
+
+ unsigned long status;
+ u32 config;
+
+ int last_rx_rssi; /* From Rx packet statisitics */
+ int last_rx_noise; /* From beacon statistics */
+
+ struct iwl3945_power_mgr power_data;
+
+ struct iwl3945_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 iwl3945_station_entry stations[IWL_STATION_COUNT];
+
+ /* Indication if ieee80211_ops->open has been called */
+ int is_open;
+
+ u8 mac80211_registered;
+ int is_abg;
+
+ 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 */
+ struct iwl3945_eeprom eeprom;
+
+ int iw_mode;
+
+ struct sk_buff *ibss_beacon;
+
+ /* Last Rx'd beacon timestamp */
+ u32 timestamp0;
+ u32 timestamp1;
+ u16 beacon_int;
+ struct iwl3945_driver_hw_info hw_setting;
+ struct ieee80211_vif *vif;
+
+ /* Current association information needed to configure the
+ * hardware */
+ u16 assoc_id;
+ u16 assoc_capability;
+ u8 ps_mode;
+
+#ifdef CONFIG_IWL3945_QOS
+ struct iwl3945_qos_info qos_data;
+#endif /*CONFIG_IWL3945_QOS */
+
+ 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_IWL3945_DEBUG
+ /* debugging info */
+ u32 framecnt_to_us;
+ atomic_t restrict_refcnt;
+#endif
+}; /*iwl3945_priv */
+
+static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
+{
+ return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+}
+
+static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
+{
+ if (ch_info == NULL)
+ return 0;
+ return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
+}
+
+static inline int is_channel_narrow(const struct iwl3945_channel_info *ch_info)
+{
+ return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
+}
+
+static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
+{
+ return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
+}
+
+static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
+{
+ return ch_info->phymode == MODE_IEEE80211A;
+}
+
+static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
+{
+ return ((ch_info->phymode == MODE_IEEE80211B) ||
+ (ch_info->phymode == MODE_IEEE80211G));
+}
+
+static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
+{
+ return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
+}
+
+static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
+{
+ return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
+}
+
+static inline int iwl3945_rate_index_from_plcp(int plcp)
+{
+ int i;
+
+ for (i = 0; i < IWL_RATE_COUNT; i++)
+ if (iwl3945_rates[i].plcp == plcp)
+ return i;
+ return -1;
+}
+
+extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
+ const struct iwl3945_priv *priv, int phymode, u16 channel);
+
+/* Requires full declaration of iwl3945_priv before including */
+#include "iwl-3945-io.h"
+
#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.