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)\ 52 do { \ 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)\ 63 do { \ 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)\ 77 do { \ 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 90 struct 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 99 struct 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 143 144 struct 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 }; 153 154 struct 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 }; 168 169 struct tx_servq { 170 struct list_head tx_pending; 171 struct __queue sta_pending; 172 int qcnt; 173 }; 174 175 struct 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 }; 191 192 struct 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 }; 202 203 struct 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 struct work_struct xmit_pipe4_reset_wi; 237 struct work_struct xmit_pipe6_reset_wi; 238 struct work_struct 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 }; 259 260 static inline struct __queue *get_free_xmit_queue( 261 struct xmit_priv *pxmitpriv) 262 { 263 return &(pxmitpriv->free_xmit_queue); 264 } 265 266 int r8712_free_xmitbuf(struct xmit_priv *pxmitpriv, 267 struct xmit_buf *pxmitbuf); 268 struct xmit_buf *r8712_alloc_xmitbuf(struct xmit_priv *pxmitpriv); 269 void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len); 270 struct xmit_frame *r8712_alloc_xmitframe(struct xmit_priv *pxmitpriv); 271 void r8712_free_xmitframe(struct xmit_priv *pxmitpriv, 272 struct xmit_frame *pxmitframe); 273 void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv, 274 struct __queue *pframequeue); 275 sint r8712_xmit_classifier(struct _adapter *padapter, 276 struct xmit_frame *pxmitframe); 277 sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt, 278 struct xmit_frame *pxmitframe); 279 sint _r8712_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag); 280 void _r8712_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv); 281 sint r8712_update_attrib(struct _adapter *padapter, _pkt *pkt, 282 struct pkt_attrib *pattrib); 283 int r8712_txframes_sta_ac_pending(struct _adapter *padapter, 284 struct pkt_attrib *pattrib); 285 sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv, 286 struct _adapter *padapter); 287 void _free_xmit_priv(struct xmit_priv *pxmitpriv); 288 void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv, 289 struct xmit_frame *pxmitframe); 290 int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe); 291 int r8712_xmit_enqueue(struct _adapter *padapter, 292 struct xmit_frame *pxmitframe); 293 int r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe); 294 void r8712_xmit_bh(void *priv); 295 296 void 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