X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fzd1211rw%2Fzd_mac.h;h=7c2759118d13377afd5431b4f770567a3c24553a;hb=5d41635195c06fc3116ef3921fe85a9a3ea5ab20;hp=082bcf8ec8dc6fd5d69ad4911892b75397a45c34;hpb=c48cf125146852424bfe8e02033c6065dd0a4021;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/wireless/zd1211rw/zd_mac.h b/drivers/net/wireless/zd1211rw/zd_mac.h index 082bcf8..7c27591 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.h +++ b/drivers/net/wireless/zd1211rw/zd_mac.h @@ -1,4 +1,7 @@ -/* zd_mac.c +/* ZD1211 USB-WLAN driver for Linux + * + * Copyright (C) 2005-2007 Ulrich Kunitz + * Copyright (C) 2006-2007 Daniel Drake * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -18,13 +21,10 @@ #ifndef _ZD_MAC_H #define _ZD_MAC_H -#include #include -#include -#include +#include #include "zd_chip.h" -#include "zd_netdev.h" struct zd_ctrlset { u8 modulation; @@ -39,31 +39,55 @@ struct zd_ctrlset { #define ZD_CS_RESERVED_SIZE 25 -/* zd_crtlset field modulation */ -#define ZD_CS_RATE_MASK 0x0f -#define ZD_CS_TYPE_MASK 0x10 -#define ZD_CS_RATE(modulation) ((modulation) & ZD_CS_RATE_MASK) -#define ZD_CS_TYPE(modulation) ((modulation) & ZD_CS_TYPE_MASK) - -#define ZD_CS_CCK 0x00 -#define ZD_CS_OFDM 0x10 - -#define ZD_CS_CCK_RATE_1M 0x00 -#define ZD_CS_CCK_RATE_2M 0x01 -#define ZD_CS_CCK_RATE_5_5M 0x02 -#define ZD_CS_CCK_RATE_11M 0x03 -/* The rates for OFDM are encoded as in the PLCP header. Use ZD_OFDM_RATE_*. +/* The field modulation of struct zd_ctrlset controls the bit rate, the use + * of short or long preambles in 802.11b (CCK mode) or the use of 802.11a or + * 802.11g in OFDM mode. + * + * The term zd-rate is used for the combination of the modulation type flag + * and the "pure" rate value. + */ +#define ZD_PURE_RATE_MASK 0x0f +#define ZD_MODULATION_TYPE_MASK 0x10 +#define ZD_RATE_MASK (ZD_PURE_RATE_MASK|ZD_MODULATION_TYPE_MASK) +#define ZD_PURE_RATE(modulation) ((modulation) & ZD_PURE_RATE_MASK) +#define ZD_MODULATION_TYPE(modulation) ((modulation) & ZD_MODULATION_TYPE_MASK) +#define ZD_RATE(modulation) ((modulation) & ZD_RATE_MASK) + +/* The two possible modulation types. Notify that 802.11b doesn't use the CCK + * codeing for the 1 and 2 MBit/s rate. We stay with the term here to remain + * consistent with uses the term at other places. */ +#define ZD_CCK 0x00 +#define ZD_OFDM 0x10 -/* bit 5 is preamble (when in CCK mode), or a/g selection (when in OFDM mode) */ -#define ZD_CS_CCK_PREA_LONG 0x00 -#define ZD_CS_CCK_PREA_SHORT 0x20 -#define ZD_CS_OFDM_MODE_11G 0x00 -#define ZD_CS_OFDM_MODE_11A 0x20 +/* The ZD1211 firmware uses proprietary encodings of the 802.11b (CCK) rates. + * For OFDM the PLCP rate encodings are used. We combine these "pure" rates + * with the modulation type flag and call the resulting values zd-rates. + */ +#define ZD_CCK_RATE_1M (ZD_CCK|0x00) +#define ZD_CCK_RATE_2M (ZD_CCK|0x01) +#define ZD_CCK_RATE_5_5M (ZD_CCK|0x02) +#define ZD_CCK_RATE_11M (ZD_CCK|0x03) +#define ZD_OFDM_RATE_6M (ZD_OFDM|ZD_OFDM_PLCP_RATE_6M) +#define ZD_OFDM_RATE_9M (ZD_OFDM|ZD_OFDM_PLCP_RATE_9M) +#define ZD_OFDM_RATE_12M (ZD_OFDM|ZD_OFDM_PLCP_RATE_12M) +#define ZD_OFDM_RATE_18M (ZD_OFDM|ZD_OFDM_PLCP_RATE_18M) +#define ZD_OFDM_RATE_24M (ZD_OFDM|ZD_OFDM_PLCP_RATE_24M) +#define ZD_OFDM_RATE_36M (ZD_OFDM|ZD_OFDM_PLCP_RATE_36M) +#define ZD_OFDM_RATE_48M (ZD_OFDM|ZD_OFDM_PLCP_RATE_48M) +#define ZD_OFDM_RATE_54M (ZD_OFDM|ZD_OFDM_PLCP_RATE_54M) + +/* The bit 5 of the zd_ctrlset modulation field controls the preamble in CCK + * mode or the 802.11a/802.11g selection in OFDM mode. + */ +#define ZD_CCK_PREA_LONG 0x00 +#define ZD_CCK_PREA_SHORT 0x20 +#define ZD_OFDM_MODE_11G 0x00 +#define ZD_OFDM_MODE_11A 0x20 /* zd_ctrlset control field */ #define ZD_CS_NEED_RANDOM_BACKOFF 0x01 -#define ZD_CS_MULTICAST 0x02 +#define ZD_CS_NO_ACK 0x02 #define ZD_CS_FRAME_TYPE_MASK 0x0c #define ZD_CS_DATA_FRAME 0x00 @@ -87,9 +111,9 @@ struct rx_length_info { #define RX_LENGTH_INFO_TAG 0x697e struct rx_status { + u8 signal_quality_cck; /* rssi */ u8 signal_strength; - u8 signal_quality_cck; u8 signal_quality_ofdm; u8 decryption_type; u8 frame_status; @@ -120,27 +144,115 @@ enum mac_flags { MAC_FIXED_CHANNEL = 0x01, }; +struct housekeeping { + struct delayed_work link_led_work; +}; + +#define ZD_MAC_STATS_BUFFER_SIZE 16 + +#define ZD_MAC_MAX_ACK_WAITERS 10 + struct zd_mac { struct zd_chip chip; spinlock_t lock; - struct net_device *netdev; - /* Unlocked reading possible */ - struct iw_statistics iw_stats; - u8 qual_average; - u8 rssi_average; + spinlock_t intr_lock; + struct ieee80211_hw *hw; + struct housekeeping housekeeping; + struct work_struct set_multicast_hash_work; + struct work_struct set_rts_cts_work; + struct work_struct set_rx_filter_work; + struct work_struct process_intr; + struct zd_mc_hash multicast_hash; + u8 intr_buffer[USB_MAX_EP_INT_BUFFER]; u8 regdomain; u8 default_regdomain; - u8 requested_channel; + int type; + int associated; + struct sk_buff_head ack_wait_queue; + struct ieee80211_channel channels[14]; + struct ieee80211_rate rates[12]; + struct ieee80211_supported_band band; + + /* Short preamble (used for RTS/CTS) */ + unsigned int short_preamble:1; + + /* flags to indicate update in progress */ + unsigned int updating_rts_rate:1; + + /* whether to pass frames with CRC errors to stack */ + unsigned int pass_failed_fcs:1; + + /* whether to pass control frames to stack */ + unsigned int pass_ctrl:1; +}; + +#define ZD_REGDOMAIN_FCC 0x10 +#define ZD_REGDOMAIN_IC 0x20 +#define ZD_REGDOMAIN_ETSI 0x30 +#define ZD_REGDOMAIN_SPAIN 0x31 +#define ZD_REGDOMAIN_FRANCE 0x32 +#define ZD_REGDOMAIN_JAPAN_ADD 0x40 +#define ZD_REGDOMAIN_JAPAN 0x41 + +enum { + MIN_CHANNEL24 = 1, + MAX_CHANNEL24 = 14, }; -static inline struct ieee80211_device *zd_mac_to_ieee80211(struct zd_mac *mac) +#define ZD_PLCP_SERVICE_LENGTH_EXTENSION 0x80 + +struct ofdm_plcp_header { + u8 prefix[3]; + __le16 service; +} __attribute__((packed)); + +static inline u8 zd_ofdm_plcp_header_rate(const struct ofdm_plcp_header *header) +{ + return header->prefix[0] & 0xf; +} + +/* The following defines give the encoding of the 4-bit rate field in the + * OFDM (802.11a/802.11g) PLCP header. Notify that these values are used to + * define the zd-rate values for OFDM. + * + * See the struct zd_ctrlset definition in zd_mac.h. + */ +#define ZD_OFDM_PLCP_RATE_6M 0xb +#define ZD_OFDM_PLCP_RATE_9M 0xf +#define ZD_OFDM_PLCP_RATE_12M 0xa +#define ZD_OFDM_PLCP_RATE_18M 0xe +#define ZD_OFDM_PLCP_RATE_24M 0x9 +#define ZD_OFDM_PLCP_RATE_36M 0xd +#define ZD_OFDM_PLCP_RATE_48M 0x8 +#define ZD_OFDM_PLCP_RATE_54M 0xc + +struct cck_plcp_header { + u8 signal; + u8 service; + __le16 length; + __le16 crc16; +} __attribute__((packed)); + +static inline u8 zd_cck_plcp_header_signal(const struct cck_plcp_header *header) { - return zd_netdev_ieee80211(mac->netdev); + return header->signal; } -static inline struct zd_mac *zd_netdev_mac(struct net_device *netdev) +/* These defines give the encodings of the signal field in the 802.11b PLCP + * header. The signal field gives the bit rate of the following packet. Even + * if technically wrong we use CCK here also for the 1 MBit/s and 2 MBit/s + * rate to stay consistent with Zydas and our use of the term. + * + * Notify that these values are *not* used in the zd-rates. + */ +#define ZD_CCK_PLCP_SIGNAL_1M 0x0a +#define ZD_CCK_PLCP_SIGNAL_2M 0x14 +#define ZD_CCK_PLCP_SIGNAL_5M5 0x37 +#define ZD_CCK_PLCP_SIGNAL_11M 0x6e + +static inline struct zd_mac *zd_hw_mac(struct ieee80211_hw *hw) { - return ieee80211softmac_priv(netdev); + return hw->priv; } static inline struct zd_mac *zd_chip_to_mac(struct zd_chip *chip) @@ -153,33 +265,22 @@ static inline struct zd_mac *zd_usb_to_mac(struct zd_usb *usb) return zd_chip_to_mac(zd_usb_to_chip(usb)); } +static inline u8 *zd_mac_get_perm_addr(struct zd_mac *mac) +{ + return mac->hw->wiphy->perm_addr; +} + #define zd_mac_dev(mac) (zd_chip_dev(&(mac)->chip)) -int zd_mac_init(struct zd_mac *mac, - struct net_device *netdev, - struct usb_interface *intf); +struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf); void zd_mac_clear(struct zd_mac *mac); -int zd_mac_init_hw(struct zd_mac *mac, u8 device_type); - -int zd_mac_open(struct net_device *netdev); -int zd_mac_stop(struct net_device *netdev); -int zd_mac_set_mac_address(struct net_device *dev, void *p); - -int zd_mac_rx(struct zd_mac *mac, const u8 *buffer, unsigned int length); - -int zd_mac_set_regdomain(struct zd_mac *zd_mac, u8 regdomain); -u8 zd_mac_get_regdomain(struct zd_mac *zd_mac); - -int zd_mac_request_channel(struct zd_mac *mac, u8 channel); -int zd_mac_get_channel(struct zd_mac *mac, u8 *channel, u8 *flags); - -int zd_mac_set_mode(struct zd_mac *mac, u32 mode); -int zd_mac_get_mode(struct zd_mac *mac, u32 *mode); - -int zd_mac_get_range(struct zd_mac *mac, struct iw_range *range); +int zd_mac_preinit_hw(struct ieee80211_hw *hw); +int zd_mac_init_hw(struct ieee80211_hw *hw); -struct iw_statistics *zd_mac_get_wireless_stats(struct net_device *ndev); +int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length); +void zd_mac_tx_failed(struct ieee80211_hw *hw); +void zd_mac_tx_to_dev(struct sk_buff *skb, int error); #ifdef DEBUG void zd_dump_rx_status(const struct rx_status *status);