LXR linux/drivers/staging/rtl8712/rtl871x

   1/******************************************************************************
   2 *
   3 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms of version 2 of the GNU General Public License as
   7 * published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12 * more details.
  13 *
  14 * You should have received a copy of the GNU General Public License along with
  15 * this program; if not, write to the Free Software Foundation, Inc.,
  16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17 *
  18 * Modifications for inclusion into the Linux staging tree are
  19 * Copyright(c) 2010 Larry Finger. All rights reserved.
  20 *
  21 * Contact information:
  22 * WLAN FAE <wlanfae@realtek.com>
  23 * Larry Finger <Larry.Finger@lwfinger.net>
  24 *
  25 ******************************************************************************/
  26#ifndef _RTL871X_XMIT_H_
  27#define _RTL871X_XMIT_H_
  28
  29#include "osdep_service.h"
  30#include "drv_types.h"
  31#include "xmit_osdep.h"
  32
  33#ifdef CONFIG_R8712_TX_AGGR
  34#define MAX_XMITBUF_SZ  (16384)
  35#else
  36#define MAX_XMITBUF_SZ  (2048)
  37#endif
  38
  39#define NR_XMITBUFF     (4)
  40
  41#ifdef CONFIG_R8712_TX_AGGR
  42#define AGGR_NR_HIGH_BOUND      (4) /*(8) */
  43#define AGGR_NR_LOW_BOUND       (2)
  44#endif
  45
  46#define XMITBUF_ALIGN_SZ 512
  47#define TX_GUARD_BAND           5
  48#define MAX_NUMBLKS             (1)
  49
  50/* Fixed the Big Endian bug when using the software driver encryption.*/
  51#define WEP_IV(pattrib_iv, txpn, keyidx)\
  52do { \
  53        pattrib_iv[0] = txpn._byte_.TSC0;\
  54        pattrib_iv[1] = txpn._byte_.TSC1;\
  55        pattrib_iv[2] = txpn._byte_.TSC2;\
  56        pattrib_iv[3] = ((keyidx & 0x3)<<6);\
  57        txpn.val = (txpn.val == 0xffffff) ? 0 : (txpn.val+1);\
  58} while (0)
  59
  60/* Fixed the Big Endian bug when doing the Tx.
  61 * The Linksys WRH54G will check this.*/
  62#define TKIP_IV(pattrib_iv, txpn, keyidx)\
  63do { \
  64        pattrib_iv[0] = txpn._byte_.TSC1;\
  65        pattrib_iv[1] = (txpn._byte_.TSC1 | 0x20) & 0x7f;\
  66        pattrib_iv[2] = txpn._byte_.TSC0;\
  67        pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
  68        pattrib_iv[4] = txpn._byte_.TSC2;\
  69        pattrib_iv[5] = txpn._byte_.TSC3;\
  70        pattrib_iv[6] = txpn._byte_.TSC4;\
  71        pattrib_iv[7] = txpn._byte_.TSC5;\
  72        txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
  73        (txpn.val+1);\
  74} while (0)
  75
  76#define AES_IV(pattrib_iv, txpn, keyidx)\
  77do { \
  78        pattrib_iv[0] = txpn._byte_.TSC0;\
  79        pattrib_iv[1] = txpn._byte_.TSC1;\
  80        pattrib_iv[2] = 0;\
  81        pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
  82        pattrib_iv[4] = txpn._byte_.TSC2;\
  83        pattrib_iv[5] = txpn._byte_.TSC3;\
  84        pattrib_iv[6] = txpn._byte_.TSC4;\
  85        pattrib_iv[7] = txpn._byte_.TSC5;\
  86        txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
  87        (txpn.val+1);\
  88} while (0)
  89
  90struct hw_xmit {
  91        spinlock_t xmit_lock;
  92        struct list_head pending;
  93        struct  __queue *sta_queue;
  94        struct hw_txqueue *phwtxqueue;
  95        sint    txcmdcnt;
  96        int     accnt;
  97};
  98
  99struct pkt_attrib {
 100        u8      type;
 101        u8      subtype;
 102        u8      bswenc;
 103        u8      dhcp_pkt;
 104
 105        u16     seqnum;
 106        u16     ether_type;
 107        u16     pktlen;         /* the original 802.3 pkt raw_data len
 108                                 * (not include ether_hdr data) */
 109        u16     last_txcmdsz;
 110
 111        u8      pkt_hdrlen;     /*the original 802.3 pkt header len*/
 112        u8      hdrlen;         /*the WLAN Header Len*/
 113        u8      nr_frags;
 114        u8      ack_policy;
 115        u8      mac_id;
 116        u8      vcs_mode;       /*virtual carrier sense method*/
 117        u8      pctrl;/*per packet txdesc control enable*/
 118        u8      qsel;
 119
 120        u8      priority;
 121        u8      encrypt;        /* when 0 indicate no encrypt. when non-zero,
 122                                 * indicate the encrypt algorithm*/
 123        u8      iv_len;
 124        u8      icv_len;
 125        unsigned char iv[8];
 126        unsigned char icv[8];
 127        u8      dst[ETH_ALEN];
 128        u8      src[ETH_ALEN];
 129        u8      ta[ETH_ALEN];
 130        u8      ra[ETH_ALEN];
 131        struct sta_info *psta;
 132};
 133
 134#define WLANHDR_OFFSET  64
 135#define DATA_FRAMETAG           0x01
 136#define L2_FRAMETAG             0x02
 137#define MGNT_FRAMETAG           0x03
 138#define AMSDU_FRAMETAG  0x04
 139#define EII_FRAMETAG            0x05
 140#define IEEE8023_FRAMETAG  0x06
 141#define MP_FRAMETAG             0x07
 142#define TXAGG_FRAMETAG  0x08
 143
 144struct xmit_buf {
 145        struct list_head list;
 146
 147        u8 *pallocated_buf;
 148        u8 *pbuf;
 149        void *priv_data;
 150        struct urb *pxmit_urb[8];
 151        u32 aggr_nr;
 152};
 153
 154struct xmit_frame {
 155        struct list_head list;
 156        struct pkt_attrib attrib;
 157        _pkt *pkt;
 158        int frame_tag;
 159        struct _adapter *padapter;
 160         u8 *buf_addr;
 161         struct xmit_buf *pxmitbuf;
 162        u8 *mem_addr;
 163        u16 sz[8];
 164        struct urb *pxmit_urb[8];
 165        u8 bpending[8];
 166        u8 last[8];
 167};
 168
 169struct tx_servq {
 170        struct list_head tx_pending;
 171        struct  __queue sta_pending;
 172        int qcnt;
 173};
 174
 175struct sta_xmit_priv {
 176        spinlock_t lock;
 177        sint    option;
 178        sint    apsd_setting;   /* When bit mask is on, the associated edca
 179                                 * queue supports APSD.*/
 180        struct tx_servq be_q;   /* priority == 0,3 */
 181        struct tx_servq bk_q;   /* priority == 1,2*/
 182        struct tx_servq vi_q;   /*priority == 4,5*/
 183        struct tx_servq vo_q;   /*priority == 6,7*/
 184        struct list_head  legacy_dz;
 185        struct list_head apsd;
 186        u16 txseq_tid[16];
 187        uint    sta_tx_bytes;
 188        u64     sta_tx_pkts;
 189        uint    sta_tx_fail;
 190};
 191
 192struct  hw_txqueue {
 193        /*volatile*/ sint       head;
 194        /*volatile*/ sint       tail;
 195        /*volatile*/ sint       free_sz;        /*in units of 64 bytes*/
 196        /*volatile*/ sint      free_cmdsz;
 197        /*volatile*/ sint        txsz[8];
 198        uint    ff_hwaddr;
 199        uint    cmd_hwaddr;
 200        sint    ac_tag;
 201};
 202
 203struct  xmit_priv {
 204        spinlock_t lock;
 205        struct  __queue be_pending;
 206        struct  __queue bk_pending;
 207        struct  __queue vi_pending;
 208        struct  __queue vo_pending;
 209        struct  __queue bm_pending;
 210        struct  __queue legacy_dz_queue;
 211        struct  __queue apsd_queue;
 212        u8 *pallocated_frame_buf;
 213        u8 *pxmit_frame_buf;
 214        uint free_xmitframe_cnt;
 215        uint mapping_addr;
 216        uint pkt_sz;
 217        struct  __queue free_xmit_queue;
 218        struct  hw_txqueue      be_txqueue;
 219        struct  hw_txqueue      bk_txqueue;
 220        struct  hw_txqueue      vi_txqueue;
 221        struct  hw_txqueue      vo_txqueue;
 222        struct  hw_txqueue      bmc_txqueue;
 223        uint    frag_len;
 224        struct _adapter *adapter;
 225        u8   vcs_setting;
 226        u8      vcs;
 227        u8      vcs_type;
 228        u16  rts_thresh;
 229        uint    tx_bytes;
 230        u64     tx_pkts;
 231        uint    tx_drop;
 232        struct hw_xmit *hwxmits;
 233        u8      hwxmit_entry;
 234        u8      txirp_cnt;
 235        struct tasklet_struct xmit_tasklet;
 236        _workitem xmit_pipe4_reset_wi;
 237        _workitem xmit_pipe6_reset_wi;
 238        _workitem xmit_piped_reset_wi;
 239        /*per AC pending irp*/
 240        int beq_cnt;
 241        int bkq_cnt;
 242        int viq_cnt;
 243        int voq_cnt;
 244        struct  __queue free_amsdu_xmit_queue;
 245        u8 *pallocated_amsdu_frame_buf;
 246        u8 *pxmit_amsdu_frame_buf;
 247        uint free_amsdu_xmitframe_cnt;
 248        struct  __queue free_txagg_xmit_queue;
 249        u8 *pallocated_txagg_frame_buf;
 250        u8 *pxmit_txagg_frame_buf;
 251        uint free_txagg_xmitframe_cnt;
 252        int cmdseq;
 253        struct  __queue free_xmitbuf_queue;
 254        struct  __queue pending_xmitbuf_queue;
 255        u8 *pallocated_xmitbuf;
 256        u8 *pxmitbuf;
 257        uint free_xmitbuf_cnt;
 258};
 259
 260static inline struct  __queue *get_free_xmit_queue(
 261                                struct xmit_priv *pxmitpriv)
 262{
 263        return &(pxmitpriv->free_xmit_queue);
 264}
 265
 266int r8712_free_xmitbuf(struct xmit_priv *pxmitpriv,
 267                       struct xmit_buf *pxmitbuf);
 268struct xmit_buf *r8712_alloc_xmitbuf(struct xmit_priv *pxmitpriv);
 269void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len);
 270struct xmit_frame *r8712_alloc_xmitframe(struct xmit_priv *pxmitpriv);
 271void r8712_free_xmitframe(struct xmit_priv *pxmitpriv,
 272                          struct xmit_frame *pxmitframe);
 273void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv,
 274                                struct  __queue *pframequeue);
 275sint r8712_xmit_classifier(struct _adapter *padapter,
 276                            struct xmit_frame *pxmitframe);
 277sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
 278                              struct xmit_frame *pxmitframe);
 279sint _r8712_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag);
 280void _r8712_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv);
 281sint r8712_update_attrib(struct _adapter *padapter, _pkt *pkt,
 282                         struct pkt_attrib *pattrib);
 283int r8712_txframes_sta_ac_pending(struct _adapter *padapter,
 284                                  struct pkt_attrib *pattrib);
 285sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
 286                           struct _adapter *padapter);
 287void _free_xmit_priv(struct xmit_priv *pxmitpriv);
 288void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv,
 289                             struct xmit_frame *pxmitframe);
 290int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe);
 291int r8712_xmit_enqueue(struct _adapter *padapter,
 292                       struct xmit_frame *pxmitframe);
 293int r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe);
 294void r8712_xmit_bh(void *priv);
 295
 296void xmitframe_xmitbuf_attach(struct xmit_frame *pxmitframe,
 297                        struct xmit_buf *pxmitbuf);
 298
 299#include "rtl8712_xmit.h"
 300
 301#endif  /*_RTL871X_XMIT_H_*/
 302
 303