[PATCH] bcm43xx: Move TX/RX related functions to its own file. Add basic RTS/CTS code.
Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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_ */