hostap_wlan.h

IEEE 802.11a/b/g linux2.4/2.6 驱动程序源代码

#ifndef HOSTAP_WLAN_H
#define HOSTAP_WLAN_H

#include "hostap_config.h"
#ifdef __KERNEL__
#include "hostap_compat.h"
#endif
#include "hostap_crypt.h"
#include "hostap_common.h"

#define MAX_PARM_DEVICES 8
#define PARM_MIN_MAX "1-" __MODULE_STRING(MAX_PARM_DEVICES)
#define DEF_INTS -1, -1, -1, -1, -1, -1, -1
#define GET_INT_PARM(var,idx) var[var[idx] < 0 ? 0 : idx]


/* Specific skb->protocol value that indicates that the packet already contains
 * txdesc header.
 * FIX: This might need own value that would be allocated especially for Prism2
 * txdesc; ETH_P_CONTROL is commented as "Card specific control frames".
 * However, these skb's should have only minimal path in the kernel side since
 * prism2_send_mgmt() sends these with dev_queue_xmit() to prism2_tx(). */
#define ETH_P_HOSTAP ETH_P_CONTROL

#ifndef ARPHRD_IEEE80211
#define ARPHRD_IEEE80211 801
#endif
#ifndef ARPHRD_IEEE80211_PRISM
#define ARPHRD_IEEE80211_PRISM 802
#endif

/* ARPHRD_IEEE80211_PRISM uses a bloated version of Prism2 RX frame header
 * (from linux-wlan-ng) */
struct linux_wlan_ng_val {
	u32 did;
	u16 status, len;
	u32 data;
} __attribute__ ((packed));

struct linux_wlan_ng_prism_hdr {
	u32 msgcode, msglen;
	char devname[16];
	struct linux_wlan_ng_val hosttime, mactime, channel, rssi, sq, signal,
		noise, rate, istx, frmlen;
} __attribute__ ((packed));

struct linux_wlan_ng_cap_hdr {
	u32 version;
	u32 length;
	u64 mactime;
	u64 hosttime;
	u32 phytype;
	u32 channel;
	u32 datarate;
	u32 antenna;
	u32 priority;
	u32 ssi_type;
	s32 ssi_signal;
	s32 ssi_noise;
	u32 preamble;
	u32 encoding;
} __attribute__ ((packed));

#define LWNG_CAP_DID_BASE   (4 | (1 << 6)) /* section 4, group 1 */
#define LWNG_CAPHDR_VERSION 0x80211001

struct hfa384x_rx_frame {
	/* HFA384X RX frame descriptor */
	u16 status; /* HFA384X_RX_STATUS_ flags */
	u32 time; /* timestamp, 1 microsecond resolution */
	u8 silence; /* 27 .. 154; seems to be 0 */
	u8 signal; /* 27 .. 154 */
	u8 rate; /* 10, 20, 55, or 110 */
	u8 rxflow;
	u32 reserved;

	/* 802.11 */
	u16 frame_control;
	u16 duration_id;
	u8 addr1[6];
	u8 addr2[6];
	u8 addr3[6];
	u16 seq_ctrl;
	u8 addr4[6];
	u16 data_len;

	/* 802.3 */
	u8 dst_addr[6];
	u8 src_addr[6];
	u16 len;

	/* followed by frame data; max 2304 bytes */
} __attribute__ ((packed));


struct hfa384x_tx_frame {
	/* HFA384X TX frame descriptor */
	u16 status; /* HFA384X_TX_STATUS_ flags */
	u16 reserved1;
	u16 reserved2;
	u32 sw_support;
	u8 retry_count; /* not yet implemented */
	u8 tx_rate; /* Host AP only; 0 = firmware, or 10, 20, 55, 110 */
	u16 tx_control; /* HFA384X_TX_CTRL_ flags */

	/* 802.11 */
	u16 frame_control; /* parts not used */
	u16 duration_id;
	u8 addr1[6];
	u8 addr2[6]; /* filled by firmware */
	u8 addr3[6];
	u16 seq_ctrl; /* filled by firmware */
	u8 addr4[6];
	u16 data_len;

	/* 802.3 */
	u8 dst_addr[6];
	u8 src_addr[6];
	u16 len;

	/* followed by frame data; max 2304 bytes */
} __attribute__ ((packed));


struct hfa384x_rid_hdr
{
	u16 len;
	u16 rid;
} __attribute__ ((packed));


/* Macro for converting signal levels (range 27 .. 154) to wireless ext
 * dBm value with some accuracy */
#define HFA384X_LEVEL_TO_dBm(v) 0x100 + (v) * 100 / 255 - 100

#define HFA384X_LEVEL_TO_dBm_sign(v) (v) * 100 / 255 - 100

struct hfa384x_scan_request {
	u16 channel_list;
	u16 txrate; /* HFA384X_RATES_* */
} __attribute__ ((packed));

struct hfa384x_hostscan_request {
	u16 channel_list;
	u16 txrate;
	u16 target_ssid_len;
	u8 target_ssid[32];
} __attribute__ ((packed));

struct hfa384x_join_request {
	u8 bssid[6];
	u16 channel;
} __attribute__ ((packed));

struct hfa384x_info_frame {
	u16 len;
	u16 type;
} __attribute__ ((packed));

struct hfa384x_comm_tallies {
	u16 tx_unicast_frames;
	u16 tx_multicast_frames;
	u16 tx_fragments;
	u16 tx_unicast_octets;
	u16 tx_multicast_octets;
	u16 tx_deferred_transmissions;
	u16 tx_single_retry_frames;
	u16 tx_multiple_retry_frames;
	u16 tx_retry_limit_exceeded;
	u16 tx_discards;
	u16 rx_unicast_frames;
	u16 rx_multicast_frames;
	u16 rx_fragments;
	u16 rx_unicast_octets;
	u16 rx_multicast_octets;
	u16 rx_fcs_errors;
	u16 rx_discards_no_buffer;
	u16 tx_discards_wrong_sa;
	u16 rx_discards_wep_undecryptable;
	u16 rx_message_in_msg_fragments;
	u16 rx_message_in_bad_msg_fragments;
} __attribute__ ((packed));

struct hfa384x_comm_tallies32 {
	u32 tx_unicast_frames;
	u32 tx_multicast_frames;
	u32 tx_fragments;
	u32 tx_unicast_octets;
	u32 tx_multicast_octets;
	u32 tx_deferred_transmissions;
	u32 tx_single_retry_frames;
	u32 tx_multiple_retry_frames;
	u32 tx_retry_limit_exceeded;
	u32 tx_discards;
	u32 rx_unicast_frames;
	u32 rx_multicast_frames;
	u32 rx_fragments;
	u32 rx_unicast_octets;
	u32 rx_multicast_octets;
	u32 rx_fcs_errors;
	u32 rx_discards_no_buffer;
	u32 tx_discards_wrong_sa;
	u32 rx_discards_wep_undecryptable;
	u32 rx_message_in_msg_fragments;
	u32 rx_message_in_bad_msg_fragments;
} __attribute__ ((packed));

struct hfa384x_scan_result_hdr {
	u16 reserved;
	u16 scan_reason;
#define HFA384X_SCAN_IN_PROGRESS 0 /* no results available yet */
#define HFA384X_SCAN_HOST_INITIATED 1
#define HFA384X_SCAN_FIRMWARE_INITIATED 2
#define HFA384X_SCAN_INQUIRY_FROM_HOST 3
} __attribute__ ((packed));

#define HFA384X_SCAN_MAX_RESULTS 32

struct hfa384x_scan_result {
	u16 chid;
	u16 anl;
	u16 sl;
	u8 bssid[6];
	u16 beacon_interval;
	u16 capability;
	u16 ssid_len;
	u8 ssid[32];
	u8 sup_rates[10];
	u16 rate;
} __attribute__ ((packed));

struct hfa384x_hostscan_result {
	u16 chid;
	u16 anl;
	u16 sl;
	u8 bssid[6];
	u16 beacon_interval;
	u16 capability;
	u16 ssid_len;
	u8 ssid[32];
	u8 sup_rates[10];
	u16 rate;
	u16 atim;
} __attribute__ ((packed));

struct comm_tallies_sums {
	unsigned int tx_unicast_frames;
	unsigned int tx_multicast_frames;
	unsigned int tx_fragments;
	unsigned int tx_unicast_octets;
	unsigned int tx_multicast_octets;
	unsigned int tx_deferred_transmissions;
	unsigned int tx_single_retry_frames;
	unsigned int tx_multiple_retry_frames;
	unsigned int tx_retry_limit_exceeded;
	unsigned int tx_discards;
	unsigned int rx_unicast_frames;
	unsigned int rx_multicast_frames;
	unsigned int rx_fragments;
	unsigned int rx_unicast_octets;
	unsigned int rx_multicast_octets;
	unsigned int rx_fcs_errors;
	unsigned int rx_discards_no_buffer;
	unsigned int tx_discards_wrong_sa;
	unsigned int rx_discards_wep_undecryptable;
	unsigned int rx_message_in_msg_fragments;
	unsigned int rx_message_in_bad_msg_fragments;
};


struct hfa384x_regs {
	u16 cmd;
	u16 evstat;
	u16 offset0;
	u16 offset1;
	u16 swsupport0;
};


#if defined(PRISM2_PCCARD) || defined(PRISM2_PLX)
/* I/O ports for HFA384X Controller access */
#define HFA384X_CMD_OFF 0x00
#define HFA384X_PARAM0_OFF 0x02
#define HFA384X_PARAM1_OFF 0x04
#define HFA384X_PARAM2_OFF 0x06
#define HFA384X_STATUS_OFF 0x08
#define HFA384X_RESP0_OFF 0x0A
#define HFA384X_RESP1_OFF 0x0C
#define HFA384X_RESP2_OFF 0x0E
#define HFA384X_INFOFID_OFF 0x10
#define HFA384X_CONTROL_OFF 0x14
#define HFA384X_SELECT0_OFF 0x18
#define HFA384X_SELECT1_OFF 0x1A
#define HFA384X_OFFSET0_OFF 0x1C
#define HFA384X_OFFSET1_OFF 0x1E
#define HFA384X_RXFID_OFF 0x20
#define HFA384X_ALLOCFID_OFF 0x22
#define HFA384X_TXCOMPLFID_OFF 0x24
#define HFA384X_SWSUPPORT0_OFF 0x28
#define HFA384X_SWSUPPORT1_OFF 0x2A
#define HFA384X_SWSUPPORT2_OFF 0x2C
#define HFA384X_EVSTAT_OFF 0x30
#define HFA384X_INTEN_OFF 0x32
#define HFA384X_EVACK_OFF 0x34
#define HFA384X_DATA0_OFF 0x36
#define HFA384X_DATA1_OFF 0x38
#define HFA384X_AUXPAGE_OFF 0x3A
#define HFA384X_AUXOFFSET_OFF 0x3C
#define HFA384X_AUXDATA_OFF 0x3E
#endif /* PRISM2_PCCARD || PRISM2_PLX */

#ifdef PRISM2_PCI
/* Memory addresses for ISL3874 controller access */
#define HFA384X_CMD_OFF 0x00
#define HFA384X_PARAM0_OFF 0x04
#define HFA384X_PARAM1_OFF 0x08
#define HFA384X_PARAM2_OFF 0x0C
#define HFA384X_STATUS_OFF 0x10
#define HFA384X_RESP0_OFF 0x14
#define HFA384X_RESP1_OFF 0x18
#define HFA384X_RESP2_OFF 0x1C
#define HFA384X_INFOFID_OFF 0x20
#define HFA384X_CONTROL_OFF 0x28
#define HFA384X_SELECT0_OFF 0x30
#define HFA384X_SELECT1_OFF 0x34
#define HFA384X_OFFSET0_OFF 0x38
#define HFA384X_OFFSET1_OFF 0x3C
#define HFA384X_RXFID_OFF 0x40
#define HFA384X_ALLOCFID_OFF 0x44
#define HFA384X_TXCOMPLFID_OFF 0x48
#define HFA384X_PCICOR_OFF 0x4C
#define HFA384X_SWSUPPORT0_OFF 0x50
#define HFA384X_SWSUPPORT1_OFF 0x54
#define HFA384X_SWSUPPORT2_OFF 0x58
#define HFA384X_PCIHCR_OFF 0x5C
#define HFA384X_EVSTAT_OFF 0x60
#define HFA384X_INTEN_OFF 0x64
#define HFA384X_EVACK_OFF 0x68
#define HFA384X_DATA0_OFF 0x6C
#define HFA384X_DATA1_OFF 0x70
#define HFA384X_AUXPAGE_OFF 0x74
#define HFA384X_AUXOFFSET_OFF 0x78
#define HFA384X_AUXDATA_OFF 0x7C
#define HFA384X_PCI_M0_ADDRH_OFF 0x80
#define HFA384X_PCI_M0_ADDRL_OFF 0x84
#define HFA384X_PCI_M0_LEN_OFF 0x88
#define HFA384X_PCI_M0_CTL_OFF 0x8C
#define HFA384X_PCI_STATUS_OFF 0x98
#define HFA384X_PCI_M1_ADDRH_OFF 0xA0
#define HFA384X_PCI_M1_ADDRL_OFF 0xA4
#define HFA384X_PCI_M1_LEN_OFF 0xA8
#define HFA384X_PCI_M1_CTL_OFF 0xAC

/* PCI bus master control bits (these are undocumented; based on guessing and
 * experimenting..) */
#define HFA384X_PCI_CTL_FROM_BAP (BIT(5) | BIT(1) | BIT(0))
#define HFA384X_PCI_CTL_TO_BAP (BIT(5) | BIT(0))

#endif /* PRISM2_PCI */


/* Command codes for CMD reg. */
#define HFA384X_CMDCODE_INIT 0x00
#define HFA384X_CMDCODE_ENABLE 0x01
#define HFA384X_CMDCODE_DISABLE 0x02
#define HFA384X_CMDCODE_ALLOC 0x0A