diff options
Diffstat (limited to 'drivers/staging/agnx/xmit.h')
-rw-r--r-- | drivers/staging/agnx/xmit.h | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/drivers/staging/agnx/xmit.h b/drivers/staging/agnx/xmit.h new file mode 100644 index 00000000000..93ac4157e69 --- /dev/null +++ b/drivers/staging/agnx/xmit.h @@ -0,0 +1,250 @@ +#ifndef AGNX_XMIT_H_ +#define AGNX_XMIT_H_ + +#include <net/mac80211.h> + +struct agnx_priv; + +static inline u32 agnx_set_bits(u32 mask, u8 shift, u32 value) +{ + return (value << shift) & mask; +} + +static inline u32 agnx_get_bits(u32 mask, u8 shift, u32 value) +{ + return (value & mask) >> shift; +} + + +struct agnx_rx { + __be16 rx_packet_duration; /* RX Packet Duration */ + __be16 replay_cnt; /* Replay Count */ +} __attribute__((__packed__)); + + +struct agnx_tx { + u8 long_retry_limit; /* Long Retry Limit */ + u8 short_retry_limit; /* Short Retry Limit */ + u8 long_retry_cnt; /* Long Retry Count */ + u8 short_retry_cnt; /* Short Retry Count */ +} __attribute__((__packed__)); + + +/* Copy from bcm43xx */ +#define P4D_BYT3S(magic, nr_bytes) u8 __p4dding##magic[nr_bytes] +#define P4D_BYTES(line, nr_bytes) P4D_BYT3S(line, nr_bytes) +#define PAD_BYTES(nr_bytes) P4D_BYTES(__LINE__, nr_bytes) + +#define P4D_BIT3S(magic, nr_bits) __be32 __padding##magic:nr_bits +#define P4D_BITS(line, nr_bits) P4D_BIT3S(line, nr_bits) +#define PAD_BITS(nr_bits) P4D_BITS(__LINE__, nr_bits) + + +struct agnx_hdr { + __be32 reg0; +#define RTS 0x80000000 /* RTS */ +#define RTS_SHIFT 31 +#define MULTICAST 0x40000000 /* multicast */ +#define MULTICAST_SHIFT 30 +#define ACK 0x30000000 /* ACK */ +#define ACK_SHIFT 28 +#define TM 0x08000000 /* TM */ +#define TM_SHIFT 27 +#define RELAY 0x04000000 /* Relay */ +#define RELAY_SHIFT 26 +/* PAD_BITS(4); */ +#define REVISED_FCS 0x00380000 /* revised FCS */ +#define REVISED_FCS_SHIFT 19 +#define NEXT_BUFFER_ADDR 0x0007FFFF /* Next Buffer Address */ +#define NEXT_BUFFER_ADDR_SHIFT 0 + + __be32 reg1; +#define MAC_HDR_LEN 0xFC000000 /* MAC Header Length */ +#define MAC_HDR_LEN_SHIFT 26 +#define DURATION_OVERIDE 0x02000000 /* Duration Override */ +#define DURATION_OVERIDE_SHIFT 25 +#define PHY_HDR_OVERIDE 0x01000000 /* PHY Header Override */ +#define PHY_HDR_OVERIDE_SHIFT 24 +#define CRC_FAIL 0x00800000 /* CRC fail */ +#define CRC_FAIL_SHIFT 23 +/* PAD_BITS(1); */ +#define SEQUENCE_NUMBER 0x00200000 /* Sequence Number */ +#define SEQUENCE_NUMBER_SHIFT 21 +/* PAD_BITS(2); */ +#define BUFF_HEAD_ADDR 0x0007FFFF /* Buffer Head Address */ +#define BUFF_HEAD_ADDR_SHIFT 0 + + __be32 reg2; +#define PDU_COUNT 0xFC000000 /* PDU Count */ +#define PDU_COUNT_SHIFT 26 +/* PAD_BITS(3); */ +#define WEP_KEY 0x00600000 /* WEP Key # */ +#define WEP_KEY_SHIFT 21 +#define USES_WEP_KEY 0x00100000 /* Uses WEP Key */ +#define USES_WEP_KEY_SHIFT 20 +#define KEEP_ALIVE 0x00080000 /* Keep alive */ +#define KEEP_ALIVE_SHIFT 19 +#define BUFF_TAIL_ADDR 0x0007FFFF /* Buffer Tail Address */ +#define BUFF_TAIL_ADDR_SHIFT 0 + + __be32 reg3; +#define CTS_11G 0x80000000 /* CTS in 11g */ +#define CTS_11G_SHIFT 31 +#define RTS_11G 0x40000000 /* RTS in 11g */ +#define RTS_11G_SHIFT 30 +/* PAD_BITS(2); */ +#define FRAG_SIZE 0x0FFF0000 /* fragment size */ +#define FRAG_SIZE_SHIFT 16 +#define PAYLOAD_LEN 0x0000FFF0 /* payload length */ +#define PAYLOAD_LEN_SHIFT 4 +#define FRAG_NUM 0x0000000F /* number of frags */ +#define FRAG_NUM_SHIFT 0 + + __be32 reg4; +/* PAD_BITS(4); */ +#define RELAY_STAID 0x0FFF0000 /* relayStald */ +#define RELAY_STAID_SHIFT 16 +#define STATION_ID 0x0000FFF0 /* Station ID */ +#define STATION_ID_SHIFT 4 +#define WORKQUEUE_ID 0x0000000F /* Workqueue ID */ +#define WORKQUEUE_ID_SHIFT 0 + + /* FIXME this register maybe is LE? */ + __be32 reg5; +/* PAD_BITS(4); */ +#define ROUTE_HOST 0x0F000000 +#define ROUTE_HOST_SHIFT 24 +#define ROUTE_CARD_CPU 0x00F00000 +#define ROUTE_CARD_CPU_SHIFT 20 +#define ROUTE_ENCRYPTION 0x000F0000 +#define ROUTE_ENCRYPTION_SHIFT 16 +#define ROUTE_TX 0x0000F000 +#define ROUTE_TX_SHIFT 12 +#define ROUTE_RX1 0x00000F00 +#define ROUTE_RX1_SHIFT 8 +#define ROUTE_RX2 0x000000F0 +#define ROUTE_RX2_SHIFT 4 +#define ROUTE_COMPRESSION 0x0000000F +#define ROUTE_COMPRESSION_SHIFT 0 + + __be32 _11g0; /* 11g */ + __be32 _11g1; /* 11g */ + __be32 _11b0; /* 11b */ + __be32 _11b1; /* 11b */ + u8 mac_hdr[32]; /* MAC header */ + + __be16 rts_duration; /* RTS duration */ + __be16 last_duration; /* Last duration */ + __be16 sec_last_duration; /* Second to Last duration */ + __be16 other_duration; /* Other duration */ + __be16 tx_last_duration; /* TX Last duration */ + __be16 tx_other_duration; /* TX Other Duration */ + __be16 last_11g_len; /* Length of last 11g */ + __be16 other_11g_len; /* Lenght of other 11g */ + + __be16 last_11b_len; /* Length of last 11b */ + __be16 other_11b_len; /* Lenght of other 11b */ + + + __be16 reg6; +#define MBF 0xF000 /* mbf */ +#define MBF_SHIFT 12 +#define RSVD4 0x0FFF /* rsvd4 */ +#define RSVD4_SHIFT 0 + + __be16 rx_frag_stat; /* RX fragmentation status */ + + __be32 time_stamp; /* TimeStamp */ + __be32 phy_stats_hi; /* PHY stats hi */ + __be32 phy_stats_lo; /* PHY stats lo */ + __be32 mic_key0; /* MIC key 0 */ + __be32 mic_key1; /* MIC key 1 */ + + union { /* RX/TX Union */ + struct agnx_rx rx; + struct agnx_tx tx; + }; + + u8 rx_channel; /* Recieve Channel */ + PAD_BYTES(3); + + u8 reserved[4]; +} __attribute__((__packed__)); + + +struct agnx_desc { +#define PACKET_LEN 0xFFF00000 +#define PACKET_LEN_SHIFT 20 +/* ------------------------------------------------ */ +#define FIRST_PACKET_MASK 0x00080000 +#define FIRST_PACKET_MASK_SHIFT 19 +#define FIRST_RESERV2 0x00040000 +#define FIRST_RESERV2_SHIFT 18 +#define FIRST_TKIP_ERROR 0x00020000 +#define FIRST_TKIP_ERROR_SHIFT 17 +#define FIRST_TKIP_PACKET 0x00010000 +#define FIRST_TKIP_PACKET_SHIFT 16 +#define FIRST_RESERV1 0x0000F000 +#define FIRST_RESERV1_SHIFT 12 +#define FIRST_FRAG_LEN 0x00000FF8 +#define FIRST_FRAG_LEN_SHIFT 3 +/* ------------------------------------------------ */ +#define SUB_RESERV2 0x000c0000 +#define SUB_RESERV2_SHIFT 18 +#define SUB_TKIP_ERROR 0x00020000 +#define SUB_TKIP_ERROR_SHIFT 17 +#define SUB_TKIP_PACKET 0x00010000 +#define SUB_TKIP_PACKET_SHIFT 16 +#define SUB_RESERV1 0x00008000 +#define SUB_RESERV1_SHIFT 15 +#define SUB_FRAG_LEN 0x00007FF8 +#define SUB_FRAG_LEN_SHIFT 3 +/* ------------------------------------------------ */ +#define FIRST_FRAG 0x00000004 +#define FIRST_FRAG_SHIFT 2 +#define LAST_FRAG 0x00000002 +#define LAST_FRAG_SHIFT 1 +#define OWNER 0x00000001 +#define OWNER_SHIFT 0 + __be32 frag; + __be32 dma_addr; +} __attribute__((__packed__)); + +enum {HEADER, PACKET}; + +struct agnx_info { + struct sk_buff *skb; + dma_addr_t mapping; + u32 dma_len; /* dma buffer len */ + /* Below fields only usful for tx */ + u32 hdr_len; /* ieee80211 header length */ + unsigned int type; + struct ieee80211_tx_info *txi; + struct ieee80211_hdr hdr; +}; + + +struct agnx_ring { + struct agnx_desc *desc; + dma_addr_t dma; + struct agnx_info *info; + /* Will lead to overflow when sent packet number enough? */ + unsigned int idx; + unsigned int idx_sent; /* only usful for txd and txm */ + unsigned int size; +}; + +#define AGNX_RX_RING_SIZE 128 +#define AGNX_TXD_RING_SIZE 256 +#define AGNX_TXM_RING_SIZE 128 + +void disable_rx_interrupt(struct agnx_priv *priv); +void enable_rx_interrupt(struct agnx_priv *priv); +int fill_rings(struct agnx_priv *priv); +void unfill_rings(struct agnx_priv *priv); +void handle_rx_irq(struct agnx_priv *priv); +void handle_txd_irq(struct agnx_priv *priv); +void handle_txm_irq(struct agnx_priv *priv); +void handle_other_irq(struct agnx_priv *priv); +int _agnx_tx(struct agnx_priv *priv, struct sk_buff *skb); +#endif /* AGNX_XMIT_H_ */ |