diff options
Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_xmit.h')
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_xmit.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_xmit.h b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.h new file mode 100644 index 0000000..2aed19e --- /dev/null +++ b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.h @@ -0,0 +1,156 @@ +#ifndef BCM43xx_XMIT_H_ +#define BCM43xx_XMIT_H_ + +#include "bcm43xx_main.h" + + +#define _bcm43xx_declare_plcp_hdr(size) \ + struct bcm43xx_plcp_hdr##size { \ + union { \ + __le32 data; \ + __u8 raw[size]; \ + } __attribute__((__packed__)); \ + } __attribute__((__packed__)) + +/* struct bcm43xx_plcp_hdr4 */ +_bcm43xx_declare_plcp_hdr(4); +/* struct bcm43xx_plcp_hdr6 */ +_bcm43xx_declare_plcp_hdr(6); + +#undef _bcm43xx_declare_plcp_hdr + +/* Device specific TX header. To be prepended to TX frames. */ +struct bcm43xx_txhdr { + union { + struct { + __le16 flags; + __le16 wsec_rate; + __le16 frame_control; + u16 unknown_zeroed_0; + __le16 control; + u8 wep_iv[10]; + u8 unknown_wsec_tkip_data[3]; //FIXME + PAD_BYTES(3); + u8 mac1[6]; + u16 unknown_zeroed_1; + struct bcm43xx_plcp_hdr4 rts_cts_fallback_plcp; + __le16 rts_cts_dur_fallback; + struct bcm43xx_plcp_hdr4 fallback_plcp; + __le16 fallback_dur_id; + PAD_BYTES(2); + __le16 cookie; + __le16 unknown_scb_stuff; //FIXME + struct bcm43xx_plcp_hdr6 rts_cts_plcp; + __le16 rts_cts_frame_control; + __le16 rts_cts_dur; + u8 rts_cts_mac1[6]; + u8 rts_cts_mac2[6]; + PAD_BYTES(2); + struct bcm43xx_plcp_hdr6 plcp; + } __attribute__((__packed__)); + u8 raw[82]; + } __attribute__((__packed__)); +} __attribute__((__packed__)); + +/* Values/Masks for the device TX header */ +#define BCM43xx_TXHDRFLAG_EXPECTACK 0x0001 +#define BCM43xx_TXHDRFLAG_RTSCTS 0x0002 +#define BCM43xx_TXHDRFLAG_RTS 0x0004 +#define BCM43xx_TXHDRFLAG_FIRSTFRAGMENT 0x0008 +#define BCM43xx_TXHDRFLAG_DESTPSMODE 0x0020 +#define BCM43xx_TXHDRFLAG_RTSCTS_OFDM 0x0080 +#define BCM43xx_TXHDRFLAG_FALLBACKOFDM 0x0100 +#define BCM43xx_TXHDRFLAG_RTSCTSFALLBACK_OFDM 0x0200 +#define BCM43xx_TXHDRFLAG_CTS 0x0400 +#define BCM43xx_TXHDRFLAG_FRAMEBURST 0x0800 + +#define BCM43xx_TXHDRCTL_OFDM 0x0001 +#define BCM43xx_TXHDRCTL_SHORT_PREAMBLE 0x0010 +#define BCM43xx_TXHDRCTL_ANTENNADIV_MASK 0x0030 +#define BCM43xx_TXHDRCTL_ANTENNADIV_SHIFT 8 + +#define BCM43xx_TXHDR_RATE_MASK 0x0F00 +#define BCM43xx_TXHDR_RATE_SHIFT 8 +#define BCM43xx_TXHDR_RTSRATE_MASK 0xF000 +#define BCM43xx_TXHDR_RTSRATE_SHIFT 12 +#define BCM43xx_TXHDR_WSEC_KEYINDEX_MASK 0x00F0 +#define BCM43xx_TXHDR_WSEC_KEYINDEX_SHIFT 4 +#define BCM43xx_TXHDR_WSEC_ALGO_MASK 0x0003 +#define BCM43xx_TXHDR_WSEC_ALGO_SHIFT 0 + +void bcm43xx_generate_txhdr(struct bcm43xx_private *bcm, + struct bcm43xx_txhdr *txhdr, + const unsigned char *fragment_data, + const unsigned int fragment_len, + const int is_first_fragment, + const u16 cookie); + +/* RX header as received from the hardware. */ +struct bcm43xx_rxhdr { + /* Frame Length. Must be generated explicitely in PIO mode. */ + __le16 frame_length; + PAD_BYTES(2); + /* Flags field 1 */ + __le16 flags1; + u8 rssi; + u8 signal_quality; + PAD_BYTES(2); + /* Flags field 3 */ + __le16 flags3; + /* Flags field 2 */ + __le16 flags2; + /* Lower 16bits of the TSF at the time the frame started. */ + __le16 mactime; + PAD_BYTES(14); +} __attribute__((__packed__)); + +#define BCM43xx_RXHDR_FLAGS1_OFDM (1 << 0) +/*#define BCM43xx_RXHDR_FLAGS1_SIGNAL??? (1 << 3) FIXME */ +#define BCM43xx_RXHDR_FLAGS1_SHORTPREAMBLE (1 << 7) +#define BCM43xx_RXHDR_FLAGS1_2053RSSIADJ (1 << 14) + +#define BCM43xx_RXHDR_FLAGS2_INVALIDFRAME (1 << 0) +#define BCM43xx_RXHDR_FLAGS2_TYPE2FRAME (1 << 2) +/*FIXME: WEP related flags */ + +#define BCM43xx_RXHDR_FLAGS3_2050RSSIADJ (1 << 10) + +/* Transmit Status as received from the hardware. */ +struct bcm43xx_hwxmitstatus { + PAD_BYTES(4); + __le16 cookie; + u8 flags; + u8 cnt1:4, + cnt2:4; + PAD_BYTES(2); + __le16 seq; + __le16 unknown; //FIXME +} __attribute__((__packed__)); + +/* Transmit Status in CPU byteorder. */ +struct bcm43xx_xmitstatus { + u16 cookie; + u8 flags; + u8 cnt1:4, + cnt2:4; + u16 seq; + u16 unknown; //FIXME +}; + +#define BCM43xx_TXSTAT_FLAG_ACK 0x01 +//TODO #define BCM43xx_TXSTAT_FLAG_??? 0x02 +//TODO #define BCM43xx_TXSTAT_FLAG_??? 0x04 +//TODO #define BCM43xx_TXSTAT_FLAG_??? 0x08 +//TODO #define BCM43xx_TXSTAT_FLAG_??? 0x10 +#define BCM43xx_TXSTAT_FLAG_IGNORE 0x20 +//TODO #define BCM43xx_TXSTAT_FLAG_??? 0x40 +//TODO #define BCM43xx_TXSTAT_FLAG_??? 0x80 + +u8 bcm43xx_plcp_get_ratecode_cck(const u8 bitrate); +u8 bcm43xx_plcp_get_ratecode_ofdm(const u8 bitrate); + +int bcm43xx_rx(struct bcm43xx_private *bcm, + struct sk_buff *skb, + struct bcm43xx_rxhdr *rxhdr); + +#endif /* BCM43xx_XMIT_H_ */ |