467 lines
11 KiB
C
467 lines
11 KiB
C
/*
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* Copyright (c) 2002,2003 Oliver Kurth
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* (c) 2003,2004 Joerg Albert <joerg.albert@gmx.de>
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* (c) 2007 Guido Guenther <agx@sigxcpu.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This driver was based on information from the Sourceforge driver
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* released and maintained by Atmel:
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*
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* http://sourceforge.net/projects/atmelwlandriver/
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*
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* Although the code was completely re-written,
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* it would have been impossible without Atmel's decision to
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* release an Open Source driver (unfortunately the firmware was
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* kept binary only). Thanks for that decision to Atmel!
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*/
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#ifndef _AT76_USB_H
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#define _AT76_USB_H
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/* Board types */
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enum board_type {
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BOARD_503_ISL3861 = 1,
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BOARD_503_ISL3863 = 2,
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BOARD_503 = 3,
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BOARD_503_ACC = 4,
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BOARD_505 = 5,
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BOARD_505_2958 = 6,
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BOARD_505A = 7,
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BOARD_505AMX = 8
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};
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#define CMD_STATUS_IDLE 0x00
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#define CMD_STATUS_COMPLETE 0x01
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#define CMD_STATUS_UNKNOWN 0x02
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#define CMD_STATUS_INVALID_PARAMETER 0x03
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#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
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#define CMD_STATUS_TIME_OUT 0x07
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#define CMD_STATUS_IN_PROGRESS 0x08
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#define CMD_STATUS_HOST_FAILURE 0xff
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#define CMD_STATUS_SCAN_FAILED 0xf0
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/* answers to get op mode */
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#define OPMODE_NONE 0x00
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#define OPMODE_NORMAL_NIC_WITH_FLASH 0x01
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#define OPMODE_HW_CONFIG_MODE 0x02
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#define OPMODE_DFU_MODE_WITH_FLASH 0x03
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#define OPMODE_NORMAL_NIC_WITHOUT_FLASH 0x04
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#define CMD_SET_MIB 0x01
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#define CMD_GET_MIB 0x02
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#define CMD_SCAN 0x03
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#define CMD_JOIN 0x04
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#define CMD_START_IBSS 0x05
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#define CMD_RADIO_ON 0x06
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#define CMD_RADIO_OFF 0x07
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#define CMD_STARTUP 0x0B
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#define MIB_LOCAL 0x01
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#define MIB_MAC_ADDR 0x02
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#define MIB_MAC 0x03
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#define MIB_MAC_MGMT 0x05
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#define MIB_MAC_WEP 0x06
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#define MIB_PHY 0x07
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#define MIB_FW_VERSION 0x08
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#define MIB_MDOMAIN 0x09
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#define ADHOC_MODE 1
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#define INFRASTRUCTURE_MODE 2
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/* values for struct mib_local, field preamble_type */
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#define PREAMBLE_TYPE_LONG 0
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#define PREAMBLE_TYPE_SHORT 1
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#define PREAMBLE_TYPE_AUTO 2
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/* values for tx_rate */
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#define TX_RATE_1MBIT 0
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#define TX_RATE_2MBIT 1
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#define TX_RATE_5_5MBIT 2
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#define TX_RATE_11MBIT 3
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#define TX_RATE_AUTO 4
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/* power management modes */
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#define AT76_PM_OFF 1
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#define AT76_PM_ON 2
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#define AT76_PM_SMART 3
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struct hwcfg_r505 {
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u8 cr39_values[14];
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u8 reserved1[14];
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u8 bb_cr[14];
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u8 pidvid[4];
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u8 mac_addr[ETH_ALEN];
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u8 regulatory_domain;
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u8 reserved2[14];
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u8 cr15_values[14];
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u8 reserved3[3];
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} __packed;
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struct hwcfg_rfmd {
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u8 cr20_values[14];
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u8 cr21_values[14];
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u8 bb_cr[14];
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u8 pidvid[4];
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u8 mac_addr[ETH_ALEN];
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u8 regulatory_domain;
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u8 low_power_values[14];
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u8 normal_power_values[14];
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u8 reserved1[3];
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} __packed;
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struct hwcfg_intersil {
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u8 mac_addr[ETH_ALEN];
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u8 cr31_values[14];
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u8 cr58_values[14];
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u8 pidvid[4];
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u8 regulatory_domain;
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u8 reserved[1];
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} __packed;
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union at76_hwcfg {
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struct hwcfg_intersil i;
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struct hwcfg_rfmd r3;
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struct hwcfg_r505 r5;
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};
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#define WEP_SMALL_KEY_LEN (40 / 8)
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#define WEP_LARGE_KEY_LEN (104 / 8)
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#define WEP_KEYS (4)
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struct at76_card_config {
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u8 exclude_unencrypted;
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u8 promiscuous_mode;
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u8 short_retry_limit;
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u8 encryption_type;
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__le16 rts_threshold;
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__le16 fragmentation_threshold; /* 256..2346 */
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u8 basic_rate_set[4];
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u8 auto_rate_fallback; /* 0,1 */
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u8 channel;
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u8 privacy_invoked;
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u8 wep_default_key_id; /* 0..3 */
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u8 current_ssid[32];
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u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN];
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u8 ssid_len;
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u8 short_preamble;
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__le16 beacon_period;
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} __packed;
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struct at76_command {
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u8 cmd;
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u8 reserved;
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__le16 size;
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u8 data[0];
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} __packed;
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/* Length of Atmel-specific Rx header before 802.11 frame */
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#define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet)
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struct at76_rx_buffer {
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__le16 wlength;
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u8 rx_rate;
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u8 newbss;
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u8 fragmentation;
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u8 rssi;
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u8 link_quality;
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u8 noise_level;
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__le32 rx_time;
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u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
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} __packed;
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/* Length of Atmel-specific Tx header before 802.11 frame */
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#define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet)
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struct at76_tx_buffer {
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__le16 wlength;
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u8 tx_rate;
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u8 padding;
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u8 reserved[4];
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u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
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} __packed;
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/* defines for scan_type below */
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#define SCAN_TYPE_ACTIVE 0
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#define SCAN_TYPE_PASSIVE 1
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struct at76_req_scan {
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u8 bssid[ETH_ALEN];
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u8 essid[32];
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u8 scan_type;
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u8 channel;
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__le16 probe_delay;
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__le16 min_channel_time;
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__le16 max_channel_time;
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u8 essid_size;
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u8 international_scan;
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} __packed;
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struct at76_req_ibss {
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u8 bssid[ETH_ALEN];
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u8 essid[32];
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u8 bss_type;
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u8 channel;
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u8 essid_size;
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u8 reserved[3];
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} __packed;
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struct at76_req_join {
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u8 bssid[ETH_ALEN];
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u8 essid[32];
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u8 bss_type;
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u8 channel;
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__le16 timeout;
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u8 essid_size;
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u8 reserved;
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} __packed;
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struct mib_local {
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u16 reserved0;
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u8 beacon_enable;
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u8 txautorate_fallback;
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u8 reserved1;
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u8 ssid_size;
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u8 promiscuous_mode;
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u16 reserved2;
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u8 preamble_type;
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u16 reserved3;
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} __packed;
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struct mib_mac_addr {
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u8 mac_addr[ETH_ALEN];
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u8 res[2]; /* ??? */
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u8 group_addr[4][ETH_ALEN];
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u8 group_addr_status[4];
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} __packed;
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struct mib_mac {
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__le32 max_tx_msdu_lifetime;
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__le32 max_rx_lifetime;
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__le16 frag_threshold;
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__le16 rts_threshold;
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__le16 cwmin;
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__le16 cwmax;
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u8 short_retry_time;
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u8 long_retry_time;
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u8 scan_type; /* active or passive */
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u8 scan_channel;
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__le16 probe_delay; /* delay before ProbeReq in active scan, RO */
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__le16 min_channel_time;
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__le16 max_channel_time;
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__le16 listen_interval;
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u8 desired_ssid[32];
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u8 desired_bssid[ETH_ALEN];
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u8 desired_bsstype; /* ad-hoc or infrastructure */
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u8 reserved2;
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} __packed;
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struct mib_mac_mgmt {
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__le16 beacon_period;
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__le16 CFP_max_duration;
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__le16 medium_occupancy_limit;
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__le16 station_id; /* assoc id */
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__le16 ATIM_window;
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u8 CFP_mode;
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u8 privacy_option_implemented;
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u8 DTIM_period;
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u8 CFP_period;
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u8 current_bssid[ETH_ALEN];
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u8 current_essid[32];
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u8 current_bss_type;
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u8 power_mgmt_mode;
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/* rfmd and 505 */
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u8 ibss_change;
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u8 res;
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u8 multi_domain_capability_implemented;
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u8 multi_domain_capability_enabled;
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u8 country_string[IEEE80211_COUNTRY_STRING_LEN];
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u8 reserved[3];
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} __packed;
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struct mib_mac_wep {
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u8 privacy_invoked; /* 0 disable encr., 1 enable encr */
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u8 wep_default_key_id;
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u8 wep_key_mapping_len;
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u8 exclude_unencrypted;
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__le32 wep_icv_error_count;
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__le32 wep_excluded_count;
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u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN];
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u8 encryption_level; /* 1 for 40bit, 2 for 104bit encryption */
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} __packed;
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struct mib_phy {
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__le32 ed_threshold;
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__le16 slot_time;
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__le16 sifs_time;
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__le16 preamble_length;
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__le16 plcp_header_length;
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__le16 mpdu_max_length;
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__le16 cca_mode_supported;
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u8 operation_rate_set[4];
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u8 channel_id;
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u8 current_cca_mode;
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u8 phy_type;
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u8 current_reg_domain;
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} __packed;
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struct mib_fw_version {
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u8 major;
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u8 minor;
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u8 patch;
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u8 build;
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} __packed;
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struct mib_mdomain {
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u8 tx_powerlevel[14];
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u8 channel_list[14]; /* 0 for invalid channels */
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} __packed;
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struct set_mib_buffer {
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u8 type;
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u8 size;
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u8 index;
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u8 reserved;
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union {
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u8 byte;
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__le16 word;
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u8 addr[ETH_ALEN];
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struct mib_mac_wep wep_mib;
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} data;
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} __packed;
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struct at76_fw_header {
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__le32 crc; /* CRC32 of the whole image */
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__le32 board_type; /* firmware compatibility code */
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u8 build; /* firmware build number */
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u8 patch; /* firmware patch level */
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u8 minor; /* firmware minor version */
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u8 major; /* firmware major version */
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__le32 str_offset; /* offset of the copyright string */
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__le32 int_fw_offset; /* internal firmware image offset */
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__le32 int_fw_len; /* internal firmware image length */
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__le32 ext_fw_offset; /* external firmware image offset */
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__le32 ext_fw_len; /* external firmware image length */
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} __packed;
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/* a description of a regulatory domain and the allowed channels */
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struct reg_domain {
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u16 code;
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char const *name;
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u32 channel_map; /* if bit N is set, channel (N+1) is allowed */
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};
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/* Data for one loaded firmware file */
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struct fwentry {
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const char *const fwname;
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const struct firmware *fw;
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int extfw_size;
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int intfw_size;
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/* pointer to loaded firmware, no need to free */
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u8 *extfw; /* external firmware, extfw_size bytes long */
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u8 *intfw; /* internal firmware, intfw_size bytes long */
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enum board_type board_type; /* board type */
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struct mib_fw_version fw_version;
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int loaded; /* Loaded and parsed successfully */
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};
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struct at76_priv {
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struct usb_device *udev; /* USB device pointer */
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struct sk_buff *rx_skb; /* skbuff for receiving data */
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struct sk_buff *tx_skb; /* skbuff for transmitting data */
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void *bulk_out_buffer; /* buffer for sending data */
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struct urb *tx_urb; /* URB for sending data */
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struct urb *rx_urb; /* URB for receiving data */
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unsigned int tx_pipe; /* bulk out pipe */
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unsigned int rx_pipe; /* bulk in pipe */
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struct mutex mtx; /* locks this structure */
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/* work queues */
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struct work_struct work_set_promisc;
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struct work_struct work_submit_rx;
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struct work_struct work_join_bssid;
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struct delayed_work dwork_hw_scan;
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struct tasklet_struct rx_tasklet;
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/* the WEP stuff */
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int wep_enabled; /* 1 if WEP is enabled */
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int wep_key_id; /* key id to be used */
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u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN]; /* WEP keys */
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u8 wep_keys_len[WEP_KEYS]; /* length of WEP keys */
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int channel;
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int iw_mode;
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u8 bssid[ETH_ALEN];
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u8 essid[IW_ESSID_MAX_SIZE];
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int essid_size;
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int radio_on;
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int promisc;
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int preamble_type; /* 0 - long, 1 - short, 2 - auto */
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int auth_mode; /* authentication type: 0 open, 1 shared key */
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int txrate; /* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */
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int frag_threshold; /* threshold for fragmentation of tx packets */
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int rts_threshold; /* threshold for RTS mechanism */
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int short_retry_limit;
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int scan_min_time; /* scan min channel time */
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int scan_max_time; /* scan max channel time */
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int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */
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int scan_need_any; /* if set, need to scan for any ESSID */
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bool scanning; /* if set, the scan is running */
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u16 assoc_id; /* current association ID, if associated */
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u8 pm_mode; /* power management mode */
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u32 pm_period; /* power management period in microseconds */
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struct reg_domain const *domain; /* reg domain description */
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/* These fields contain HW config provided by the device (not all of
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* these fields are used by all board types) */
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u8 mac_addr[ETH_ALEN];
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u8 regulatory_domain;
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struct at76_card_config card_config;
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enum board_type board_type;
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struct mib_fw_version fw_version;
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unsigned int device_unplugged:1;
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unsigned int netdev_registered:1;
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struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */
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int beacon_period; /* period of mgmt beacons, Kus */
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struct ieee80211_hw *hw;
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int mac80211_registered;
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};
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#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS
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#define SCAN_POLL_INTERVAL (HZ / 4)
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#define CMD_COMPLETION_TIMEOUT (5 * HZ)
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#define DEF_RTS_THRESHOLD 1536
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#define DEF_FRAG_THRESHOLD 1536
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#define DEF_SHORT_RETRY_LIMIT 8
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#define DEF_CHANNEL 10
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#define DEF_SCAN_MIN_TIME 10
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#define DEF_SCAN_MAX_TIME 120
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/* the max padding size for tx in bytes (see calc_padding) */
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#define MAX_PADDING_SIZE 53
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#endif /* _AT76_USB_H */
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