drivers/staging/vt6656/device.h

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  *
  16  * File: device.h
  17  *
  18  * Purpose: MAC Data structure
  19  *
  20  * Author: Tevin Chen
  21  *
  22  * Date: Mar 17, 1997
  23  *
  24  */
  25
  26 #ifndef __DEVICE_H__
  27 #define __DEVICE_H__
  28
  29 #include <linux/module.h>
  30 #include <linux/kernel.h>
  31 #include <linux/slab.h>
  32 #include <linux/delay.h>
  33 #include <linux/device.h>
  34 #include <linux/firmware.h>
  35 #include <linux/suspend.h>
  36 #include <linux/if_arp.h>
  37 #include <linux/wireless.h>
  38 #include <linux/timer.h>
  39 #include <linux/usb.h>
  40 #include <linux/crc32.h>
  41 #include <net/mac80211.h>
  42
  43 #ifdef SIOCETHTOOL
  44 #define DEVICE_ETHTOOL_IOCTL_SUPPORT
  45 #include <linux/ethtool.h>
  46 #else
  47 #undef DEVICE_ETHTOOL_IOCTL_SUPPORT
  48 #endif
  49
  50 #define RATE_1M         0
  51 #define RATE_2M         1
  52 #define RATE_5M         2
  53 #define RATE_11M        3
  54 #define RATE_6M         4
  55 #define RATE_9M         5
  56 #define RATE_12M        6
  57 #define RATE_18M        7
  58 #define RATE_24M        8
  59 #define RATE_36M        9
  60 #define RATE_48M        10
  61 #define RATE_54M        11
  62 #define RATE_AUTO       12
  63
  64 #define MAX_RATE                        12
  65 #define VNT_B_RATES     (BIT(RATE_1M) | BIT(RATE_2M) |\
  66                         BIT(RATE_5M) | BIT(RATE_11M))
  67
  68 /*
  69  * device specific
  70  */
  71
  72 #include "wcmd.h"
  73 #include "desc.h"
  74 #include "key.h"
  75 #include "card.h"
  76
  77 #define VNT_USB_VENDOR_ID                     0x160a
  78 #define VNT_USB_PRODUCT_ID                    0x3184
  79
  80 #define DEVICE_NAME                     "vt6656"
  81 #define DEVICE_FULL_DRV_NAM             "VIA Networking Wireless LAN USB Driver"
  82
  83 #define DEVICE_VERSION                  "mac80211"
  84
  85 #define CONFIG_PATH                     "/etc/vntconfiguration.dat"
  86
  87 #define MAX_UINTS                       8
  88 #define OPTION_DEFAULT                  { [0 ... MAX_UINTS-1] = -1}
  89
  90 #define DUPLICATE_RX_CACHE_LENGTH       5
  91
  92 #define AUTO_FB_NONE            0
  93 #define AUTO_FB_0               1
  94 #define AUTO_FB_1               2
  95
  96 #define FB_RATE0                0
  97 #define FB_RATE1                1
  98
  99 /* Antenna Mode */
 100 #define ANT_A                   0
 101 #define ANT_B                   1
 102 #define ANT_DIVERSITY           2
 103 #define ANT_RXD_TXA             3
 104 #define ANT_RXD_TXB             4
 105 #define ANT_UNKNOWN             0xFF
 106 #define ANT_TXA                 0
 107 #define ANT_TXB                 1
 108 #define ANT_RXA                 2
 109 #define ANT_RXB                 3
 110
 111 #define BB_VGA_LEVEL            4
 112 #define BB_VGA_CHANGE_THRESHOLD 3
 113
 114 #define EEP_MAX_CONTEXT_SIZE    256
 115
 116 /* Contents in the EEPROM */
 117 #define EEP_OFS_PAR             0x0
 118 #define EEP_OFS_ANTENNA         0x17
 119 #define EEP_OFS_RADIOCTL        0x18
 120 #define EEP_OFS_RFTYPE          0x1b
 121 #define EEP_OFS_MINCHANNEL      0x1c
 122 #define EEP_OFS_MAXCHANNEL      0x1d
 123 #define EEP_OFS_SIGNATURE       0x1e
 124 #define EEP_OFS_ZONETYPE        0x1f
 125 #define EEP_OFS_RFTABLE         0x20
 126 #define EEP_OFS_PWR_CCK         0x20
 127 #define EEP_OFS_SETPT_CCK       0x21
 128 #define EEP_OFS_PWR_OFDMG       0x23
 129
 130 #define EEP_OFS_CALIB_TX_IQ     0x24
 131 #define EEP_OFS_CALIB_TX_DC     0x25
 132 #define EEP_OFS_CALIB_RX_IQ     0x26
 133
 134 #define EEP_OFS_MAJOR_VER       0x2e
 135 #define EEP_OFS_MINOR_VER       0x2f
 136
 137 #define EEP_OFS_CCK_PWR_TBL     0x30
 138 #define EEP_OFS_OFDM_PWR_TBL    0x40
 139 #define EEP_OFS_OFDMA_PWR_TBL   0x50
 140
 141 /* Bits in EEP_OFS_ANTENNA */
 142 #define EEP_ANTENNA_MAIN        0x1
 143 #define EEP_ANTENNA_AUX         0x2
 144 #define EEP_ANTINV              0x4
 145
 146 /* Bits in EEP_OFS_RADIOCTL */
 147 #define EEP_RADIOCTL_ENABLE     0x80
 148
 149 /* control commands */
 150 #define MESSAGE_TYPE_READ               0x1
 151 #define MESSAGE_TYPE_WRITE              0x0
 152 #define MESSAGE_TYPE_LOCK_OR            0x2
 153 #define MESSAGE_TYPE_LOCK_AND           0x3
 154 #define MESSAGE_TYPE_WRITE_MASK         0x4
 155 #define MESSAGE_TYPE_CARDINIT           0x5
 156 #define MESSAGE_TYPE_INIT_RSP           0x6
 157 #define MESSAGE_TYPE_MACSHUTDOWN        0x7
 158 #define MESSAGE_TYPE_SETKEY             0x8
 159 #define MESSAGE_TYPE_CLRKEYENTRY        0x9
 160 #define MESSAGE_TYPE_WRITE_MISCFF       0xa
 161 #define MESSAGE_TYPE_SET_ANTMD          0xb
 162 #define MESSAGE_TYPE_SELECT_CHANNEL     0xc
 163 #define MESSAGE_TYPE_SET_TSFTBTT        0xd
 164 #define MESSAGE_TYPE_SET_SSTIFS         0xe
 165 #define MESSAGE_TYPE_CHANGE_BBTYPE      0xf
 166 #define MESSAGE_TYPE_DISABLE_PS         0x10
 167 #define MESSAGE_TYPE_WRITE_IFRF         0x11
 168
 169 /* command read/write(index) */
 170 #define MESSAGE_REQUEST_MEM             0x1
 171 #define MESSAGE_REQUEST_BBREG           0x2
 172 #define MESSAGE_REQUEST_MACREG          0x3
 173 #define MESSAGE_REQUEST_EEPROM          0x4
 174 #define MESSAGE_REQUEST_TSF             0x5
 175 #define MESSAGE_REQUEST_TBTT            0x6
 176 #define MESSAGE_REQUEST_BBAGC           0x7
 177 #define MESSAGE_REQUEST_VERSION         0x8
 178 #define MESSAGE_REQUEST_RF_INIT         0x9
 179 #define MESSAGE_REQUEST_RF_INIT2        0xa
 180 #define MESSAGE_REQUEST_RF_CH0          0xb
 181 #define MESSAGE_REQUEST_RF_CH1          0xc
 182 #define MESSAGE_REQUEST_RF_CH2          0xd
 183
 184 /* USB registers */
 185 #define USB_REG4                        0x604
 186
 187 #define DEVICE_INIT_COLD        0x0 /* cold init */
 188 #define DEVICE_INIT_RESET       0x1 /* reset init or Dx to D0 power remain */
 189 #define DEVICE_INIT_DXPL        0x2 /* Dx to D0 power lost init */
 190
 191 /* Device init */
 192 struct vnt_cmd_card_init {
 193         u8 init_class;
 194         u8 exist_sw_net_addr;
 195         u8 sw_net_addr[6];
 196         u8 short_retry_limit;
 197         u8 long_retry_limit;
 198 };
 199
 200 struct vnt_rsp_card_init {
 201         u8 status;
 202         u8 net_addr[6];
 203         u8 rf_type;
 204         u8 min_channel;
 205         u8 max_channel;
 206 };
 207
 208 /* USB */
 209
 210 /*
 211  * Enum of context types for SendPacket
 212  */
 213 enum {
 214         CONTEXT_DATA_PACKET = 1,
 215         CONTEXT_MGMT_PACKET,
 216         CONTEXT_BEACON_PACKET
 217 };
 218
 219 /* RCB (Receive Control Block) */
 220 struct vnt_rcb {
 221         void *priv;
 222         struct urb *urb;
 223         struct sk_buff *skb;
 224         int in_use;
 225 };
 226
 227 /* used to track bulk out irps */
 228 struct vnt_usb_send_context {
 229         void *priv;
 230         struct sk_buff *skb;
 231         struct urb *urb;
 232         struct ieee80211_hdr *hdr;
 233         unsigned int buf_len;
 234         u32 frame_len;
 235         u16 tx_hdr_size;
 236         u16 tx_rate;
 237         u8 type;
 238         u8 pkt_no;
 239         u8 pkt_type;
 240         u8 need_ack;
 241         u8 fb_option;
 242         bool in_use;
 243         unsigned char data[MAX_TOTAL_SIZE_WITH_ALL_HEADERS];
 244 };
 245
 246 /*
 247  * Structure to keep track of USB interrupt packets
 248  */
 249 struct vnt_interrupt_buffer {
 250         u8 *data_buf;
 251         bool in_use;
 252 };
 253
 254 /*++ NDIS related */
 255
 256 enum {
 257         STATUS_SUCCESS = 0,
 258         STATUS_FAILURE,
 259         STATUS_RESOURCES,
 260         STATUS_PENDING,
 261 };
 262
 263 /* flags for options */
 264 #define DEVICE_FLAGS_UNPLUG             0
 265 #define DEVICE_FLAGS_DISCONNECTED       1
 266
 267 struct vnt_private {
 268         /* mac80211 */
 269         struct ieee80211_hw *hw;
 270         struct ieee80211_vif *vif;
 271         u8 mac_hw;
 272         /* netdev */
 273         struct usb_device *usb;
 274         struct usb_interface *intf;
 275
 276         u64 tsf_time;
 277         u8 rx_rate;
 278
 279         u32 rx_buf_sz;
 280         int mc_list_count;
 281
 282         spinlock_t lock;
 283         struct mutex usb_lock;
 284
 285         unsigned long flags;
 286
 287         /* USB */
 288         struct urb *interrupt_urb;
 289         u32 int_interval;
 290
 291         /* Variables to track resources for the BULK In Pipe */
 292         struct vnt_rcb *rcb[CB_MAX_RX_DESC];
 293         u32 num_rcb;
 294
 295         /* Variables to track resources for the BULK Out Pipe */
 296         struct vnt_usb_send_context *tx_context[CB_MAX_TX_DESC];
 297         u32 num_tx_context;
 298
 299         /* Variables to track resources for the Interrupt In Pipe */
 300         struct vnt_interrupt_buffer int_buf;
 301
 302         /* Version control */
 303         u16 firmware_version;
 304         u8 local_id;
 305         u8 rf_type;
 306         u8 bb_rx_conf;
 307
 308         struct vnt_cmd_card_init init_command;
 309         struct vnt_rsp_card_init init_response;
 310         u8 current_net_addr[ETH_ALEN] __aligned(2);
 311         u8 permanent_net_addr[ETH_ALEN] __aligned(2);
 312
 313         u8 exist_sw_net_addr;
 314
 315         u64 current_tsf;
 316
 317         /* 802.11 MAC specific */
 318         u32 current_rssi;
 319
 320         /* Antenna Diversity */
 321         int tx_rx_ant_inv;
 322         u32 rx_antenna_sel;
 323         u8 rx_antenna_mode;
 324         u8 tx_antenna_mode;
 325         u8 radio_ctl;
 326
 327         /* IFS & Cw */
 328         u32 sifs;  /* Current SIFS */
 329         u32 difs;  /* Current DIFS */
 330         u32 eifs;  /* Current EIFS */
 331         u32 slot;  /* Current SlotTime */
 332
 333         /* Rate */
 334         u8 bb_type; /* 0: 11A, 1:11B, 2:11G */
 335         u8 packet_type; /* 0:11a 1:11b 2:11gb 3:11ga */
 336         u32 basic_rates;
 337         u8 top_ofdm_basic_rate;
 338         u8 top_cck_basic_rate;
 339
 340         u8 eeprom[EEP_MAX_CONTEXT_SIZE];  /*u32 alignment */
 341
 342         u8 preamble_type;
 343
 344         /* For RF Power table */
 345         u8 cck_pwr;
 346         u8 ofdm_pwr_g;
 347         u8 ofdm_pwr_a;
 348         u8 power;
 349         u8 cck_pwr_tbl[14];
 350         u8 ofdm_pwr_tbl[14];
 351         u8 ofdm_a_pwr_tbl[42];
 352
 353         u16 current_rate;
 354         u16 tx_rate_fb0;
 355         u16 tx_rate_fb1;
 356
 357         u8 short_retry_limit;
 358         u8 long_retry_limit;
 359
 360         enum nl80211_iftype op_mode;
 361
 362         int short_slot_time;
 363
 364         /* Power save */
 365         u16 current_aid;
 366
 367         /* Beacon related */
 368         u16 seq_counter;
 369
 370         enum vnt_cmd_state command_state;
 371
 372         enum vnt_cmd command;
 373
 374         /* 802.11 counter */
 375
 376         enum vnt_cmd cmd_queue[CMD_Q_SIZE];
 377         u32 cmd_dequeue_idx;
 378         u32 cmd_enqueue_idx;
 379         u32 free_cmd_queue;
 380         int cmd_running;
 381
 382         unsigned long key_entry_inuse;
 383
 384         u8 auto_fb_ctrl;
 385
 386         /* For Update BaseBand VGA Gain Offset */
 387         u8 bb_vga[BB_VGA_LEVEL];
 388
 389         u8 bb_pre_ed_rssi;
 390         u8 bb_pre_ed_index;
 391
 392         u16 wake_up_count;
 393
 394         /* command timer */
 395         struct delayed_work run_command_work;
 396
 397         struct ieee80211_low_level_stats low_stats;
 398 };
 399
 400 #define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) {       \
 401         if ((uVar) >= ((uModulo) - 1))                  \
 402                 (uVar) = 0;                             \
 403         else                                            \
 404                 (uVar)++;                               \
 405 }
 406
 407 int vnt_init(struct vnt_private *priv);
 408
 409 #endif