[B43]: add mac80211-based driver for modern BCM43xx devices
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h
new file mode 100644
index 0000000..03bddd2
--- /dev/null
+++ b/drivers/net/wireless/b43/xmit.h
@@ -0,0 +1,250 @@
+#ifndef B43_XMIT_H_
+#define B43_XMIT_H_
+
+#include "main.h"
+
+#define _b43_declare_plcp_hdr(size) \
+ struct b43_plcp_hdr##size { \
+ union { \
+ __le32 data; \
+ __u8 raw[size]; \
+ } __attribute__((__packed__)); \
+ } __attribute__((__packed__))
+
+/* struct b43_plcp_hdr4 */
+_b43_declare_plcp_hdr(4);
+/* struct b43_plcp_hdr6 */
+_b43_declare_plcp_hdr(6);
+
+#undef _b43_declare_plcp_hdr
+
+/* TX header for v4 firmware */
+struct b43_txhdr_fw4 {
+ __le32 mac_ctl; /* MAC TX control */
+ __le16 mac_frame_ctl; /* Copy of the FrameControl field */
+ __le16 tx_fes_time_norm; /* TX FES Time Normal */
+ __le16 phy_ctl; /* PHY TX control */
+ __le16 phy_ctl_0; /* Unused */
+ __le16 phy_ctl_1; /* Unused */
+ __le16 phy_ctl_rts_0; /* Unused */
+ __le16 phy_ctl_rts_1; /* Unused */
+ __u8 phy_rate; /* PHY rate */
+ __u8 phy_rate_rts; /* PHY rate for RTS/CTS */
+ __u8 extra_ft; /* Extra Frame Types */
+ __u8 chan_radio_code; /* Channel Radio Code */
+ __u8 iv[16]; /* Encryption IV */
+ __u8 tx_receiver[6]; /* TX Frame Receiver address */
+ __le16 tx_fes_time_fb; /* TX FES Time Fallback */
+ struct b43_plcp_hdr6 rts_plcp_fb; /* RTS fallback PLCP */
+ __le16 rts_dur_fb; /* RTS fallback duration */
+ struct b43_plcp_hdr6 plcp_fb; /* Fallback PLCP */
+ __le16 dur_fb; /* Fallback duration */
+ __le16 mm_dur_time; /* Unused */
+ __le16 mm_dur_time_fb; /* Unused */
+ __le32 time_stamp; /* Timestamp */
+ PAD_BYTES(2);
+ __le16 cookie; /* TX frame cookie */
+ __le16 tx_status; /* TX status */
+ struct b43_plcp_hdr6 rts_plcp; /* RTS PLCP */
+ __u8 rts_frame[16]; /* The RTS frame (if used) */
+ PAD_BYTES(2);
+ struct b43_plcp_hdr6 plcp; /* Main PLCP */
+} __attribute__ ((__packed__));
+
+/* MAC TX control */
+#define B43_TX4_MAC_KEYIDX 0x0FF00000 /* Security key index */
+#define B43_TX4_MAC_KEYIDX_SHIFT 20
+#define B43_TX4_MAC_KEYALG 0x00070000 /* Security key algorithm */
+#define B43_TX4_MAC_KEYALG_SHIFT 16
+#define B43_TX4_MAC_LIFETIME 0x00001000
+#define B43_TX4_MAC_FRAMEBURST 0x00000800
+#define B43_TX4_MAC_SENDCTS 0x00000400
+#define B43_TX4_MAC_AMPDU 0x00000300
+#define B43_TX4_MAC_AMPDU_SHIFT 8
+#define B43_TX4_MAC_5GHZ 0x00000080
+#define B43_TX4_MAC_IGNPMQ 0x00000020
+#define B43_TX4_MAC_HWSEQ 0x00000010 /* Use Hardware Sequence Number */
+#define B43_TX4_MAC_STMSDU 0x00000008 /* Start MSDU */
+#define B43_TX4_MAC_SENDRTS 0x00000004
+#define B43_TX4_MAC_LONGFRAME 0x00000002
+#define B43_TX4_MAC_ACK 0x00000001
+
+/* Extra Frame Types */
+#define B43_TX4_EFT_FBOFDM 0x0001 /* Data frame fallback rate type */
+#define B43_TX4_EFT_RTSOFDM 0x0004 /* RTS/CTS rate type */
+#define B43_TX4_EFT_RTSFBOFDM 0x0010 /* RTS/CTS fallback rate type */
+
+/* PHY TX control word */
+#define B43_TX4_PHY_OFDM 0x0001 /* Data frame rate type */
+#define B43_TX4_PHY_SHORTPRMBL 0x0010 /* Use short preamble */
+#define B43_TX4_PHY_ANT 0x03C0 /* Antenna selection */
+#define B43_TX4_PHY_ANT0 0x0000 /* Use antenna 0 */
+#define B43_TX4_PHY_ANT1 0x0100 /* Use antenna 1 */
+#define B43_TX4_PHY_ANTLAST 0x0300 /* Use last used antenna */
+
+void b43_generate_txhdr(struct b43_wldev *dev,
+ u8 * txhdr,
+ const unsigned char *fragment_data,
+ unsigned int fragment_len,
+ const struct ieee80211_tx_control *txctl, u16 cookie);
+
+/* Transmit Status */
+struct b43_txstatus {
+ u16 cookie; /* The cookie from the txhdr */
+ u16 seq; /* Sequence number */
+ u8 phy_stat; /* PHY TX status */
+ u8 frame_count; /* Frame transmit count */
+ u8 rts_count; /* RTS transmit count */
+ u8 supp_reason; /* Suppression reason */
+ /* flags */
+ u8 pm_indicated; /* PM mode indicated to AP */
+ u8 intermediate; /* Intermediate status notification (not final) */
+ u8 for_ampdu; /* Status is for an AMPDU (afterburner) */
+ u8 acked; /* Wireless ACK received */
+};
+
+/* txstatus supp_reason values */
+enum {
+ B43_TXST_SUPP_NONE, /* Not suppressed */
+ B43_TXST_SUPP_PMQ, /* Suppressed due to PMQ entry */
+ B43_TXST_SUPP_FLUSH, /* Suppressed due to flush request */
+ B43_TXST_SUPP_PREV, /* Previous fragment failed */
+ B43_TXST_SUPP_CHAN, /* Channel mismatch */
+ B43_TXST_SUPP_LIFE, /* Lifetime expired */
+ B43_TXST_SUPP_UNDER, /* Buffer underflow */
+ B43_TXST_SUPP_ABNACK, /* Afterburner NACK */
+};
+
+/* Transmit Status as received through DMA/PIO on old chips */
+struct b43_hwtxstatus {
+ PAD_BYTES(4);
+ __le16 cookie;
+ u8 flags;
+ u8 count;
+ PAD_BYTES(2);
+ __le16 seq;
+ u8 phy_stat;
+ PAD_BYTES(1);
+} __attribute__ ((__packed__));
+
+/* Receive header for v4 firmware. */
+struct b43_rxhdr_fw4 {
+ __le16 frame_len; /* Frame length */
+ PAD_BYTES(2);
+ __le16 phy_status0; /* PHY RX Status 0 */
+ __u8 jssi; /* PHY RX Status 1: JSSI */
+ __u8 sig_qual; /* PHY RX Status 1: Signal Quality */
+ __le16 phy_status2; /* PHY RX Status 2 */
+ __le16 phy_status3; /* PHY RX Status 3 */
+ __le32 mac_status; /* MAC RX status */
+ __le16 mac_time;
+ __le16 channel;
+} __attribute__ ((__packed__));
+
+/* PHY RX Status 0 */
+#define B43_RX_PHYST0_GAINCTL 0x4000 /* Gain Control */
+#define B43_RX_PHYST0_PLCPHCF 0x0200
+#define B43_RX_PHYST0_PLCPFV 0x0100
+#define B43_RX_PHYST0_SHORTPRMBL 0x0080 /* Received with Short Preamble */
+#define B43_RX_PHYST0_LCRS 0x0040
+#define B43_RX_PHYST0_ANT 0x0020 /* Antenna */
+#define B43_RX_PHYST0_UNSRATE 0x0010
+#define B43_RX_PHYST0_CLIP 0x000C
+#define B43_RX_PHYST0_CLIP_SHIFT 2
+#define B43_RX_PHYST0_FTYPE 0x0003 /* Frame type */
+#define B43_RX_PHYST0_CCK 0x0000 /* Frame type: CCK */
+#define B43_RX_PHYST0_OFDM 0x0001 /* Frame type: OFDM */
+#define B43_RX_PHYST0_PRE_N 0x0002 /* Pre-standard N-PHY frame */
+#define B43_RX_PHYST0_STD_N 0x0003 /* Standard N-PHY frame */
+
+/* PHY RX Status 2 */
+#define B43_RX_PHYST2_LNAG 0xC000 /* LNA Gain */
+#define B43_RX_PHYST2_LNAG_SHIFT 14
+#define B43_RX_PHYST2_PNAG 0x3C00 /* PNA Gain */
+#define B43_RX_PHYST2_PNAG_SHIFT 10
+#define B43_RX_PHYST2_FOFF 0x03FF /* F offset */
+
+/* PHY RX Status 3 */
+#define B43_RX_PHYST3_DIGG 0x1800 /* DIG Gain */
+#define B43_RX_PHYST3_DIGG_SHIFT 11
+#define B43_RX_PHYST3_TRSTATE 0x0400 /* TR state */
+
+/* MAC RX Status */
+#define B43_RX_MAC_BEACONSENT 0x00008000 /* Beacon send flag */
+#define B43_RX_MAC_KEYIDX 0x000007E0 /* Key index */
+#define B43_RX_MAC_KEYIDX_SHIFT 5
+#define B43_RX_MAC_DECERR 0x00000010 /* Decrypt error */
+#define B43_RX_MAC_DEC 0x00000008 /* Decryption attempted */
+#define B43_RX_MAC_PADDING 0x00000004 /* Pad bytes present */
+#define B43_RX_MAC_RESP 0x00000002 /* Response frame transmitted */
+#define B43_RX_MAC_FCSERR 0x00000001 /* FCS error */
+
+/* RX channel */
+#define B43_RX_CHAN_GAIN 0xFC00 /* Gain */
+#define B43_RX_CHAN_GAIN_SHIFT 10
+#define B43_RX_CHAN_ID 0x03FC /* Channel ID */
+#define B43_RX_CHAN_ID_SHIFT 2
+#define B43_RX_CHAN_PHYTYPE 0x0003 /* PHY type */
+
+u8 b43_plcp_get_ratecode_cck(const u8 bitrate);
+u8 b43_plcp_get_ratecode_ofdm(const u8 bitrate);
+
+void b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp,
+ const u16 octets, const u8 bitrate);
+
+void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr);
+
+void b43_handle_txstatus(struct b43_wldev *dev,
+ const struct b43_txstatus *status);
+
+void b43_handle_hwtxstatus(struct b43_wldev *dev,
+ const struct b43_hwtxstatus *hw);
+
+void b43_tx_suspend(struct b43_wldev *dev);
+void b43_tx_resume(struct b43_wldev *dev);
+
+#define B43_NR_QOSPARMS 22
+enum {
+ B43_QOSPARM_TXOP = 0,
+ B43_QOSPARM_CWMIN,
+ B43_QOSPARM_CWMAX,
+ B43_QOSPARM_CWCUR,
+ B43_QOSPARM_AIFS,
+ B43_QOSPARM_BSLOTS,
+ B43_QOSPARM_REGGAP,
+ B43_QOSPARM_STATUS,
+};
+void b43_qos_init(struct b43_wldev *dev);
+
+/* Helper functions for converting the key-table index from "firmware-format"
+ * to "raw-format" and back. The firmware API changed for this at some revision.
+ * We need to account for that here. */
+static inline int b43_new_kidx_api(struct b43_wldev *dev)
+{
+ /* FIXME: Not sure the change was at rev 351 */
+ return (dev->fw.rev >= 351);
+}
+static inline u8 b43_kidx_to_fw(struct b43_wldev *dev, u8 raw_kidx)
+{
+ u8 firmware_kidx;
+ if (b43_new_kidx_api(dev)) {
+ firmware_kidx = raw_kidx;
+ } else {
+ if (raw_kidx >= 4) /* Is per STA key? */
+ firmware_kidx = raw_kidx - 4;
+ else
+ firmware_kidx = raw_kidx; /* TX default key */
+ }
+ return firmware_kidx;
+}
+static inline u8 b43_kidx_to_raw(struct b43_wldev *dev, u8 firmware_kidx)
+{
+ u8 raw_kidx;
+ if (b43_new_kidx_api(dev))
+ raw_kidx = firmware_kidx;
+ else
+ raw_kidx = firmware_kidx + 4; /* RX default keys or per STA keys */
+ return raw_kidx;
+}
+
+#endif /* B43_XMIT_H_ */