drivers/net/wireless/bcm43xx/bcm43xx_main.h

   1 /*
   2
   3   Broadcom BCM43xx wireless driver
   4
   5   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   6                      Stefano Brivio <st3@riseup.net>
   7                      Michael Buesch <mbuesch@freenet.de>
   8                      Danny van Dyk <kugelfang@gentoo.org>
   9                      Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10
  11   Some parts of the code in this file are derived from the ipw2200
  12   driver  Copyright(c) 2003 - 2004 Intel Corporation.
  13
  14   This program is free software; you can redistribute it and/or modify
  15   it under the terms of the GNU General Public License as published by
  16   the Free Software Foundation; either version 2 of the License, or
  17   (at your option) any later version.
  18
  19   This program is distributed in the hope that it will be useful,
  20   but WITHOUT ANY WARRANTY; without even the implied warranty of
  21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22   GNU General Public License for more details.
  23
  24   You should have received a copy of the GNU General Public License
  25   along with this program; see the file COPYING.  If not, write to
  26   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  27   Boston, MA 02110-1301, USA.
  28
  29 */
  30
  31 #ifndef BCM43xx_MAIN_H_
  32 #define BCM43xx_MAIN_H_
  33
  34 #include "bcm43xx.h"
  35
  36 #ifdef CONFIG_BCM947XX
  37 #define atoi(str) simple_strtoul(((str != NULL) ? str : ""), NULL, 0)
  38
  39 static inline void e_aton(char *str, char *dest)
  40 {
  41         int i = 0;
  42         u16 *d = (u16 *) dest;
  43
  44         for (;;) {
  45                 dest[i++] = (char) simple_strtoul(str, NULL, 16);
  46                 str += 2;
  47                 if (!*str++ || i == 6)
  48                         break;
  49         }
  50         for (i = 0; i < 3; i++)
  51                 d[i] = cpu_to_be16(d[i]);
  52 }
  53 #endif
  54
  55
  56 #define _bcm43xx_declare_plcp_hdr(size) \
  57         struct bcm43xx_plcp_hdr##size {         \
  58                 union {                         \
  59                         __le32 data;            \
  60                         __u8 raw[size];         \
  61                 } __attribute__((__packed__));  \
  62         } __attribute__((__packed__))
  63
  64 /* struct bcm43xx_plcp_hdr4 */
  65 _bcm43xx_declare_plcp_hdr(4);
  66 /* struct bcm430c_plcp_hdr6 */
  67 _bcm43xx_declare_plcp_hdr(6);
  68
  69 #undef _bcm43xx_declare_plcp_hdr
  70
  71
  72 #define P4D_BYT3S(magic, nr_bytes)      u8 __p4dding##magic[nr_bytes]
  73 #define P4D_BYTES(line, nr_bytes)       P4D_BYT3S(line, nr_bytes)
  74 /* Magic helper macro to pad structures. Ignore those above. It's magic. */
  75 #define PAD_BYTES(nr_bytes)             P4D_BYTES( __LINE__ , (nr_bytes))
  76
  77
  78 /* Device specific TX header. To be prepended to TX frames. */
  79 struct bcm43xx_txhdr {
  80         union {
  81                 struct {
  82                         u16 flags;
  83                         u16 wsec_rate;
  84                         u16 frame_control;
  85                         u16 unknown_zeroed_0;
  86                         u16 control;
  87                         unsigned char wep_iv[10];
  88                         unsigned char unknown_wsec_tkip_data[3]; //FIXME
  89                         PAD_BYTES(3);
  90                         unsigned char mac1[6];
  91                         u16 unknown_zeroed_1;
  92                         struct bcm43xx_plcp_hdr4 rts_cts_fallback_plcp;
  93                         u16 rts_cts_dur_fallback;
  94                         struct bcm43xx_plcp_hdr4 fallback_plcp;
  95                         u16 fallback_dur_id;
  96                         PAD_BYTES(2);
  97                         u16 cookie;
  98                         u16 unknown_scb_stuff; //FIXME
  99                         struct bcm43xx_plcp_hdr6 rts_cts_plcp;
 100                         u16 rts_cts_frame_type;
 101                         u16 rts_cts_dur;
 102                         unsigned char rts_cts_mac1[6];
 103                         unsigned char rts_cts_mac2[6];
 104                         PAD_BYTES(2);
 105                         struct bcm43xx_plcp_hdr6 plcp;
 106                 } __attribute__((__packed__));
 107
 108                 unsigned char raw[82];
 109         } __attribute__((__packed__));
 110 } __attribute__((__packed__));
 111
 112 struct sk_buff;
 113
 114 void bcm43xx_generate_txhdr(struct bcm43xx_private *bcm,
 115                             struct bcm43xx_txhdr *txhdr,
 116                             const unsigned char *fragment_data,
 117                             const unsigned int fragment_len,
 118                             const int is_first_fragment,
 119                             const u16 cookie);
 120
 121 /* RX header as received from the hardware. */
 122 struct bcm43xx_rxhdr {
 123         /* Frame Length. Must be generated explicitely in PIO mode. */
 124         __le16 frame_length;
 125         PAD_BYTES(2);
 126         /* Flags field 1 */
 127         __le16 flags1;
 128         u8 rssi;
 129         u8 signal_quality;
 130         PAD_BYTES(2);
 131         /* Flags field 3 */
 132         __le16 flags3;
 133         /* Flags field 2 */
 134         __le16 flags2;
 135         /* Lower 16bits of the TSF at the time the frame started. */
 136         __le16 mactime;
 137         PAD_BYTES(14);
 138 } __attribute__((__packed__));
 139
 140 #define BCM43xx_RXHDR_FLAGS1_OFDM               (1 << 0)
 141 /*#define BCM43xx_RXHDR_FLAGS1_SIGNAL???        (1 << 3) FIXME */
 142 #define BCM43xx_RXHDR_FLAGS1_SHORTPREAMBLE      (1 << 7)
 143 #define BCM43xx_RXHDR_FLAGS1_2053RSSIADJ        (1 << 14)
 144
 145 #define BCM43xx_RXHDR_FLAGS2_INVALIDFRAME       (1 << 0)
 146 #define BCM43xx_RXHDR_FLAGS2_TYPE2FRAME         (1 << 2)
 147 /*FIXME: WEP related flags */
 148
 149 #define BCM43xx_RXHDR_FLAGS3_2050RSSIADJ        (1 << 10)
 150
 151 /* Transmit Status as received from the hardware. */
 152 struct bcm43xx_hwxmitstatus {
 153         PAD_BYTES(4);
 154         __le16 cookie;
 155         u8 flags;
 156         u8 cnt1:4,
 157            cnt2:4;
 158         PAD_BYTES(2);
 159         __le16 seq;
 160         __le16 unknown; //FIXME
 161 } __attribute__((__packed__));
 162
 163 /* Transmit Status in CPU byteorder. */
 164 struct bcm43xx_xmitstatus {
 165         u16 cookie;
 166         u8 flags;
 167         u8 cnt1:4,
 168            cnt2:4;
 169         u16 seq;
 170         u16 unknown; //FIXME
 171 };
 172
 173 #define BCM43xx_TXSTAT_FLAG_ACK         0x01
 174 //TODO #define BCM43xx_TXSTAT_FLAG_???  0x02
 175 //TODO #define BCM43xx_TXSTAT_FLAG_???  0x04
 176 //TODO #define BCM43xx_TXSTAT_FLAG_???  0x08
 177 //TODO #define BCM43xx_TXSTAT_FLAG_???  0x10
 178 #define BCM43xx_TXSTAT_FLAG_IGNORE      0x20
 179 //TODO #define BCM43xx_TXSTAT_FLAG_???  0x40
 180 //TODO #define BCM43xx_TXSTAT_FLAG_???  0x80
 181
 182 struct bcm43xx_xmitstatus_queue {
 183         struct list_head list;
 184         struct bcm43xx_hwxmitstatus status;
 185 };
 186
 187
 188 /* Lightweight function to convert a frequency (in Mhz) to a channel number. */
 189 static inline
 190 u8 bcm43xx_freq_to_channel(struct bcm43xx_private *bcm,
 191                            int freq)
 192 {
 193         u8 channel;
 194
 195         if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
 196                 channel = (freq - 5000) / 5;
 197         } else {
 198                 if (freq == 2484)
 199                         channel = 14;
 200                 else
 201                         channel = (freq - 2407) / 5;
 202         }
 203
 204         return channel;
 205 }
 206
 207 /* Lightweight function to convert a channel number to a frequency (in Mhz). */
 208 static inline
 209 int bcm43xx_channel_to_freq(struct bcm43xx_private *bcm,
 210                             u8 channel)
 211 {
 212         int freq;
 213
 214         if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
 215                 freq = 5000 + (5 * channel);
 216         } else {
 217                 if (channel == 14)
 218                         freq = 2484;
 219                 else
 220                         freq = 2407 + (5 * channel);
 221         }
 222
 223         return freq;
 224 }
 225
 226 /* Lightweight function to check if a channel number is valid.
 227  * Note that this does _NOT_ check for geographical restrictions!
 228  */
 229 static inline
 230 int bcm43xx_is_valid_channel(struct bcm43xx_private *bcm,
 231                             u8 channel)
 232 {
 233         if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
 234                 if (channel <= 200)
 235                         return 1;
 236         } else {
 237                 if (channel >= 1 && channel <= 14)
 238                         return 1;
 239         }
 240
 241         return 0;
 242 }
 243
 244 void bcm43xx_tsf_read(struct bcm43xx_private *bcm, u64 *tsf);
 245 void bcm43xx_tsf_write(struct bcm43xx_private *bcm, u64 tsf);
 246
 247 int bcm43xx_rx(struct bcm43xx_private *bcm,
 248                struct sk_buff *skb,
 249                struct bcm43xx_rxhdr *rxhdr);
 250
 251 void bcm43xx_set_iwmode(struct bcm43xx_private *bcm,
 252                         int iw_mode);
 253
 254 u32 bcm43xx_shm_read32(struct bcm43xx_private *bcm,
 255                        u16 routing, u16 offset);
 256 u16 bcm43xx_shm_read16(struct bcm43xx_private *bcm,
 257                        u16 routing, u16 offset);
 258 void bcm43xx_shm_write32(struct bcm43xx_private *bcm,
 259                          u16 routing, u16 offset,
 260                          u32 value);
 261 void bcm43xx_shm_write16(struct bcm43xx_private *bcm,
 262                          u16 routing, u16 offset,
 263                          u16 value);
 264
 265 void bcm43xx_dummy_transmission(struct bcm43xx_private *bcm);
 266
 267 int bcm43xx_switch_core(struct bcm43xx_private *bcm, struct bcm43xx_coreinfo *new_core);
 268
 269 void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy);
 270
 271 int bcm43xx_pci_read_config_16(struct pci_dev *pdev, u16 offset, u16 *val);
 272 int bcm43xx_pci_read_config_32(struct pci_dev *pdev, u16 offset, u32 *val);
 273 int bcm43xx_pci_write_config_16(struct pci_dev *pdev, int offset, u16 val);
 274 int bcm43xx_pci_write_config_32(struct pci_dev *pdev, int offset, u32 val);
 275
 276 void bcm43xx_mac_suspend(struct bcm43xx_private *bcm);
 277 void bcm43xx_mac_enable(struct bcm43xx_private *bcm);
 278
 279 void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason);
 280
 281 int bcm43xx_sprom_read(struct bcm43xx_private *bcm, u16 *sprom);
 282 int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom);
 283
 284 #endif /* BCM43xx_MAIN_H_ */