drivers/net/wireless/marvell/libertas_tf/libertas

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   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Copyright (C) 2008, cozybit Inc.
   4  *  Copyright (C) 2007, Red Hat, Inc.
   5  *  Copyright (C) 2003-2006, Marvell International Ltd.
   6  */
   7 #include <linux/spinlock.h>
   8 #include <linux/device.h>
   9 #include <linux/kthread.h>
  10 #include <net/mac80211.h>
  11 
  12 #include "deb_defs.h"
  13 
  14 #ifndef DRV_NAME
  15 #define DRV_NAME "libertas_tf"
  16 #endif
  17 
  18 #define MRVL_DEFAULT_RETRIES                    9
  19 #define MRVL_PER_PACKET_RATE                    0x10
  20 #define MRVL_MAX_BCN_SIZE                       440
  21 #define CMD_OPTION_WAITFORRSP                   0x0002
  22 
  23 /* Return command are almost always the same as the host command, but with
  24  * bit 15 set high.  There are a few exceptions, though...
  25  */
  26 #define CMD_RET(cmd)                    (0x8000 | cmd)
  27 
  28 /* Command codes */
  29 #define CMD_GET_HW_SPEC                         0x0003
  30 #define CMD_802_11_RESET                        0x0005
  31 #define CMD_MAC_MULTICAST_ADR                   0x0010
  32 #define CMD_802_11_RADIO_CONTROL                0x001c
  33 #define CMD_802_11_RF_CHANNEL                   0x001d
  34 #define CMD_802_11_RF_TX_POWER                  0x001e
  35 #define CMD_MAC_CONTROL                         0x0028
  36 #define CMD_802_11_MAC_ADDRESS                  0x004d
  37 #define CMD_SET_BOOT2_VER                       0x00a5
  38 #define CMD_802_11_BEACON_CTRL                  0x00b0
  39 #define CMD_802_11_BEACON_SET                   0x00cb
  40 #define CMD_802_11_SET_MODE                     0x00cc
  41 #define CMD_802_11_SET_BSSID                    0x00cd
  42 
  43 #define CMD_ACT_GET                     0x0000
  44 #define CMD_ACT_SET                     0x0001
  45 
  46 /* Define action or option for CMD_802_11_RESET */
  47 #define CMD_ACT_HALT                    0x0003
  48 
  49 /* Define action or option for CMD_MAC_CONTROL */
  50 #define CMD_ACT_MAC_RX_ON                       0x0001
  51 #define CMD_ACT_MAC_TX_ON                       0x0002
  52 #define CMD_ACT_MAC_MULTICAST_ENABLE            0x0020
  53 #define CMD_ACT_MAC_BROADCAST_ENABLE            0x0040
  54 #define CMD_ACT_MAC_PROMISCUOUS_ENABLE          0x0080
  55 #define CMD_ACT_MAC_ALL_MULTICAST_ENABLE        0x0100
  56 
  57 /* Define action or option for CMD_802_11_RADIO_CONTROL */
  58 #define CMD_TYPE_AUTO_PREAMBLE          0x0001
  59 #define CMD_TYPE_SHORT_PREAMBLE         0x0002
  60 #define CMD_TYPE_LONG_PREAMBLE          0x0003
  61 
  62 #define TURN_ON_RF                      0x01
  63 #define RADIO_ON                        0x01
  64 #define RADIO_OFF                       0x00
  65 
  66 #define SET_AUTO_PREAMBLE               0x05
  67 #define SET_SHORT_PREAMBLE              0x03
  68 #define SET_LONG_PREAMBLE               0x01
  69 
  70 /* Define action or option for CMD_802_11_RF_CHANNEL */
  71 #define CMD_OPT_802_11_RF_CHANNEL_GET   0x00
  72 #define CMD_OPT_802_11_RF_CHANNEL_SET   0x01
  73 
  74 /* Codes for CMD_802_11_SET_MODE */
  75 enum lbtf_mode {
  76         LBTF_PASSIVE_MODE,
  77         LBTF_STA_MODE,
  78         LBTF_AP_MODE,
  79 };
  80 
  81 /** Card Event definition */
  82 #define MACREG_INT_CODE_FIRMWARE_READY          48
  83 /** Buffer Constants */
  84 
  85 /*      The size of SQ memory PPA, DPA are 8 DWORDs, that keep the physical
  86 *       addresses of TxPD buffers. Station has only 8 TxPD available, Whereas
  87 *       driver has more local TxPDs. Each TxPD on the host memory is associated
  88 *       with a Tx control node. The driver maintains 8 RxPD descriptors for
  89 *       station firmware to store Rx packet information.
  90 *
  91 *       Current version of MAC has a 32x6 multicast address buffer.
  92 *
  93 *       802.11b can have up to  14 channels, the driver keeps the
  94 *       BSSID(MAC address) of each APs or Ad hoc stations it has sensed.
  95 */
  96 
  97 #define MRVDRV_MAX_MULTICAST_LIST_SIZE  32
  98 #define LBS_NUM_CMD_BUFFERS             10
  99 #define LBS_CMD_BUFFER_SIZE             (2 * 1024)
 100 #define MRVDRV_MAX_CHANNEL_SIZE         14
 101 #define MRVDRV_SNAP_HEADER_LEN          8
 102 
 103 #define LBS_UPLD_SIZE                   2312
 104 #define DEV_NAME_LEN                    32
 105 
 106 /** Misc constants */
 107 /* This section defines 802.11 specific contants */
 108 
 109 #define MRVDRV_MAX_REGION_CODE                  6
 110 /**
 111  * the table to keep region code
 112  */
 113 #define LBTF_REGDOMAIN_US       0x10
 114 #define LBTF_REGDOMAIN_CA       0x20
 115 #define LBTF_REGDOMAIN_EU       0x30
 116 #define LBTF_REGDOMAIN_SP       0x31
 117 #define LBTF_REGDOMAIN_FR       0x32
 118 #define LBTF_REGDOMAIN_JP       0x40
 119 
 120 #define SBI_EVENT_CAUSE_SHIFT           3
 121 
 122 /** RxPD status */
 123 
 124 #define MRVDRV_RXPD_STATUS_OK                0x0001
 125 
 126 
 127 /* This is for firmware specific length */
 128 #define EXTRA_LEN       36
 129 
 130 #define MRVDRV_ETH_TX_PACKET_BUFFER_SIZE \
 131         (ETH_FRAME_LEN + sizeof(struct txpd) + EXTRA_LEN)
 132 
 133 #define MRVDRV_ETH_RX_PACKET_BUFFER_SIZE \
 134         (ETH_FRAME_LEN + sizeof(struct rxpd) \
 135          + MRVDRV_SNAP_HEADER_LEN + EXTRA_LEN)
 136 
 137 #define CMD_F_HOSTCMD           (1 << 0)
 138 #define FW_CAPINFO_WPA          (1 << 0)
 139 
 140 #define RF_ANTENNA_1            0x1
 141 #define RF_ANTENNA_2            0x2
 142 #define RF_ANTENNA_AUTO         0xFFFF
 143 
 144 #define LBTF_EVENT_BCN_SENT     55
 145 
 146 /** Global Variable Declaration */
 147 /** mv_ms_type */
 148 enum mv_ms_type {
 149         MVMS_DAT = 0,
 150         MVMS_CMD = 1,
 151         MVMS_TXDONE = 2,
 152         MVMS_EVENT
 153 };
 154 
 155 extern struct workqueue_struct *lbtf_wq;
 156 
 157 struct lbtf_private;
 158 
 159 struct lbtf_offset_value {
 160         u32 offset;
 161         u32 value;
 162 };
 163 
 164 struct channel_range {
 165         u8 regdomain;
 166         u8 start;
 167         u8 end; /* exclusive (channel must be less than end) */
 168 };
 169 
 170 struct if_usb_card;
 171 
 172 struct lbtf_ops {
 173         /** Hardware access */
 174         int (*hw_host_to_card)(struct lbtf_private *priv, u8 type,
 175                                u8 *payload, u16 nb);
 176         int (*hw_prog_firmware)(struct lbtf_private *priv);
 177         int (*hw_reset_device)(struct lbtf_private *priv);
 178 };
 179 
 180 /** Private structure for the MV device */
 181 struct lbtf_private {
 182         void *card;
 183         struct ieee80211_hw *hw;
 184         const struct lbtf_ops *ops;
 185 
 186         /* Command response buffer */
 187         u8 cmd_resp_buff[LBS_UPLD_SIZE];
 188         /* Download sent:
 189            bit0 1/0=data_sent/data_tx_done,
 190            bit1 1/0=cmd_sent/cmd_tx_done,
 191            all other bits reserved 0 */
 192         struct ieee80211_vif *vif;
 193 
 194         struct work_struct cmd_work;
 195         struct work_struct tx_work;
 196 
 197         /** Wlan adapter data structure*/
 198         /** STATUS variables */
 199         u32 fwrelease;
 200         u32 fwcapinfo;
 201         /* protected with big lock */
 202 
 203         struct mutex lock;
 204 
 205         /** command-related variables */
 206         u16 seqnum;
 207         /* protected by big lock */
 208 
 209         struct cmd_ctrl_node *cmd_array;
 210         /** Current command */
 211         struct cmd_ctrl_node *cur_cmd;
 212         /** command Queues */
 213         /** Free command buffers */
 214         struct list_head cmdfreeq;
 215         /** Pending command buffers */
 216         struct list_head cmdpendingq;
 217 
 218         /** spin locks */
 219         spinlock_t driver_lock;
 220 
 221         /** Timers */
 222         struct timer_list command_timer;
 223         int nr_retries;
 224         int cmd_timed_out;
 225 
 226         u8 cmd_response_rxed;
 227 
 228         /** capability Info used in Association, start, join */
 229         u16 capability;
 230 
 231         /** MAC address information */
 232         u8 current_addr[ETH_ALEN];
 233         u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN];
 234         u32 nr_of_multicastmacaddr;
 235         int cur_freq;
 236 
 237         struct sk_buff *skb_to_tx;
 238         struct sk_buff *tx_skb;
 239 
 240         /** NIC Operation characteristics */
 241         u16 mac_control;
 242         u16 regioncode;
 243         struct channel_range range;
 244 
 245         u8 radioon;
 246         u32 preamble;
 247 
 248         struct ieee80211_channel channels[14];
 249         struct ieee80211_rate rates[12];
 250         struct ieee80211_supported_band band;
 251         struct lbtf_offset_value offsetvalue;
 252 
 253         u8 surpriseremoved;
 254         struct sk_buff_head bc_ps_buf;
 255 
 256         /* Most recently reported noise in dBm */
 257         s8 noise;
 258 };
 259 
 260 /* 802.11-related definitions */
 261 
 262 /* TxPD descriptor */
 263 struct txpd {
 264         /* Current Tx packet status */
 265         __le32 tx_status;
 266         /* Tx control */
 267         __le32 tx_control;
 268         __le32 tx_packet_location;
 269         /* Tx packet length */
 270         __le16 tx_packet_length;
 271         /* First 2 byte of destination MAC address */
 272         u8 tx_dest_addr_high[2];
 273         /* Last 4 byte of destination MAC address */
 274         u8 tx_dest_addr_low[4];
 275         /* Pkt Priority */
 276         u8 priority;
 277         /* Pkt Trasnit Power control */
 278         u8 powermgmt;
 279         /* Time the packet has been queued in the driver (units = 2ms) */
 280         u8 pktdelay_2ms;
 281         /* reserved */
 282         u8 reserved1;
 283 };
 284 
 285 /* RxPD Descriptor */
 286 struct rxpd {
 287         /* Current Rx packet status */
 288         __le16 status;
 289 
 290         /* SNR */
 291         u8 snr;
 292 
 293         /* Tx control */
 294         u8 rx_control;
 295 
 296         /* Pkt length */
 297         __le16 pkt_len;
 298 
 299         /* Noise Floor */
 300         u8 nf;
 301 
 302         /* Rx Packet Rate */
 303         u8 rx_rate;
 304 
 305         /* Pkt addr */
 306         __le32 pkt_ptr;
 307 
 308         /* Next Rx RxPD addr */
 309         __le32 next_rxpd_ptr;
 310 
 311         /* Pkt Priority */
 312         u8 priority;
 313         u8 reserved[3];
 314 };
 315 
 316 struct cmd_header {
 317         __le16 command;
 318         __le16 size;
 319         __le16 seqnum;
 320         __le16 result;
 321 } __packed;
 322 
 323 struct cmd_ctrl_node {
 324         struct list_head list;
 325         int result;
 326         /* command response */
 327         int (*callback)(struct lbtf_private *,
 328                         unsigned long, struct cmd_header *);
 329         unsigned long callback_arg;
 330         /* command data */
 331         struct cmd_header *cmdbuf;
 332         /* wait queue */
 333         u16 cmdwaitqwoken;
 334         wait_queue_head_t cmdwait_q;
 335 };
 336 
 337 /*
 338  * Define data structure for CMD_GET_HW_SPEC
 339  * This structure defines the response for the GET_HW_SPEC command
 340  */
 341 struct cmd_ds_get_hw_spec {
 342         struct cmd_header hdr;
 343 
 344         /* HW Interface version number */
 345         __le16 hwifversion;
 346         /* HW version number */
 347         __le16 version;
 348         /* Max number of TxPD FW can handle */
 349         __le16 nr_txpd;
 350         /* Max no of Multicast address */
 351         __le16 nr_mcast_adr;
 352         /* MAC address */
 353         u8 permanentaddr[6];
 354 
 355         /* region Code */
 356         __le16 regioncode;
 357 
 358         /* Number of antenna used */
 359         __le16 nr_antenna;
 360 
 361         /* FW release number, example 0x01030304 = 2.3.4p1 */
 362         __le32 fwrelease;
 363 
 364         /* Base Address of TxPD queue */
 365         __le32 wcb_base;
 366         /* Read Pointer of RxPd queue */
 367         __le32 rxpd_rdptr;
 368 
 369         /* Write Pointer of RxPd queue */
 370         __le32 rxpd_wrptr;
 371 
 372         /*FW/HW capability */
 373         __le32 fwcapinfo;
 374 } __packed;
 375 
 376 struct cmd_ds_mac_control {
 377         struct cmd_header hdr;
 378         __le16 action;
 379         u16 reserved;
 380 };
 381 
 382 struct cmd_ds_802_11_mac_address {
 383         struct cmd_header hdr;
 384 
 385         __le16 action;
 386         uint8_t macadd[ETH_ALEN];
 387 };
 388 
 389 struct cmd_ds_mac_multicast_addr {
 390         struct cmd_header hdr;
 391 
 392         __le16 action;
 393         __le16 nr_of_adrs;
 394         u8 maclist[ETH_ALEN * MRVDRV_MAX_MULTICAST_LIST_SIZE];
 395 };
 396 
 397 struct cmd_ds_set_mode {
 398         struct cmd_header hdr;
 399 
 400         __le16 mode;
 401 };
 402 
 403 struct cmd_ds_set_bssid {
 404         struct cmd_header hdr;
 405 
 406         u8 bssid[6];
 407         u8 activate;
 408 };
 409 
 410 struct cmd_ds_802_11_radio_control {
 411         struct cmd_header hdr;
 412 
 413         __le16 action;
 414         __le16 control;
 415 };
 416 
 417 
 418 struct cmd_ds_802_11_rf_channel {
 419         struct cmd_header hdr;
 420 
 421         __le16 action;
 422         __le16 channel;
 423         __le16 rftype;      /* unused */
 424         __le16 reserved;    /* unused */
 425         u8 channellist[32]; /* unused */
 426 };
 427 
 428 struct cmd_ds_set_boot2_ver {
 429         struct cmd_header hdr;
 430 
 431         __le16 action;
 432         __le16 version;
 433 };
 434 
 435 struct cmd_ds_802_11_reset {
 436         struct cmd_header hdr;
 437 
 438         __le16 action;
 439 };
 440 
 441 struct cmd_ds_802_11_beacon_control {
 442         struct cmd_header hdr;
 443 
 444         __le16 action;
 445         __le16 beacon_enable;
 446         __le16 beacon_period;
 447 };
 448 
 449 struct cmd_ds_802_11_beacon_set {
 450         struct cmd_header hdr;
 451 
 452         __le16 len;
 453         u8 beacon[MRVL_MAX_BCN_SIZE];
 454 };
 455 
 456 struct lbtf_private;
 457 struct cmd_ctrl_node;
 458 
 459 /** Function Prototype Declaration */
 460 void lbtf_set_mac_control(struct lbtf_private *priv);
 461 
 462 int lbtf_free_cmd_buffer(struct lbtf_private *priv);
 463 
 464 int lbtf_allocate_cmd_buffer(struct lbtf_private *priv);
 465 int lbtf_execute_next_command(struct lbtf_private *priv);
 466 int lbtf_set_radio_control(struct lbtf_private *priv);
 467 int lbtf_update_hw_spec(struct lbtf_private *priv);
 468 int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv);
 469 void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode);
 470 void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid);
 471 int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr);
 472 
 473 int lbtf_set_channel(struct lbtf_private *priv, u8 channel);
 474 
 475 int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon);
 476 int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable,
 477                      int beacon_int);
 478 
 479 
 480 int lbtf_process_rx_command(struct lbtf_private *priv);
 481 void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd,
 482                           int result);
 483 void lbtf_cmd_response_rx(struct lbtf_private *priv);
 484 
 485 /* main.c */
 486 struct chan_freq_power *lbtf_get_region_cfp_table(u8 region,
 487         int *cfp_no);
 488 struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev,
 489                                    const struct lbtf_ops *ops);
 490 int lbtf_remove_card(struct lbtf_private *priv);
 491 int lbtf_start_card(struct lbtf_private *priv);
 492 int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb);
 493 void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail);
 494 void lbtf_bcn_sent(struct lbtf_private *priv);
 495 
 496 /* support functions for cmd.c */
 497 /* lbtf_cmd() infers the size of the buffer to copy data back into, from
 498    the size of the target of the pointer. Since the command to be sent
 499    may often be smaller, that size is set in cmd->size by the caller.*/
 500 #define lbtf_cmd(priv, cmdnr, cmd, cb, cb_arg)  ({              \
 501         uint16_t __sz = le16_to_cpu((cmd)->hdr.size);           \
 502         (cmd)->hdr.size = cpu_to_le16(sizeof(*(cmd)));          \
 503         __lbtf_cmd(priv, cmdnr, &(cmd)->hdr, __sz, cb, cb_arg); \
 504 })
 505 
 506 #define lbtf_cmd_with_response(priv, cmdnr, cmd)        \
 507         lbtf_cmd(priv, cmdnr, cmd, lbtf_cmd_copyback, (unsigned long) (cmd))
 508 
 509 void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command,
 510         struct cmd_header *in_cmd, int in_cmd_size);
 511 
 512 int __lbtf_cmd(struct lbtf_private *priv, uint16_t command,
 513               struct cmd_header *in_cmd, int in_cmd_size,
 514               int (*callback)(struct lbtf_private *, unsigned long,
 515                               struct cmd_header *),
 516               unsigned long callback_arg);
 517 
 518 int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra,
 519                      struct cmd_header *resp);
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/wireless/marvell/libertas_tf/libertas_tf.h

INCLUDED FROM
