520 lines
12 KiB
C
520 lines
12 KiB
C
/*
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* Copyright (C) 2008, cozybit Inc.
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* Copyright (C) 2007, Red Hat, Inc.
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* Copyright (C) 2003-2006, Marvell International Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#include <linux/spinlock.h>
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#include <linux/device.h>
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#include <linux/kthread.h>
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#include <net/mac80211.h>
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#include "deb_defs.h"
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#ifndef DRV_NAME
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#define DRV_NAME "libertas_tf"
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#endif
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#define MRVL_DEFAULT_RETRIES 9
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#define MRVL_PER_PACKET_RATE 0x10
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#define MRVL_MAX_BCN_SIZE 440
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#define CMD_OPTION_WAITFORRSP 0x0002
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/* Return command are almost always the same as the host command, but with
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* bit 15 set high. There are a few exceptions, though...
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*/
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#define CMD_RET(cmd) (0x8000 | cmd)
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/* Command codes */
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#define CMD_GET_HW_SPEC 0x0003
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#define CMD_802_11_RESET 0x0005
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#define CMD_MAC_MULTICAST_ADR 0x0010
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#define CMD_802_11_RADIO_CONTROL 0x001c
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#define CMD_802_11_RF_CHANNEL 0x001d
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#define CMD_802_11_RF_TX_POWER 0x001e
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#define CMD_MAC_CONTROL 0x0028
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#define CMD_802_11_MAC_ADDRESS 0x004d
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#define CMD_SET_BOOT2_VER 0x00a5
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#define CMD_802_11_BEACON_CTRL 0x00b0
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#define CMD_802_11_BEACON_SET 0x00cb
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#define CMD_802_11_SET_MODE 0x00cc
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#define CMD_802_11_SET_BSSID 0x00cd
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#define CMD_ACT_GET 0x0000
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#define CMD_ACT_SET 0x0001
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/* Define action or option for CMD_802_11_RESET */
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#define CMD_ACT_HALT 0x0003
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/* Define action or option for CMD_MAC_CONTROL */
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#define CMD_ACT_MAC_RX_ON 0x0001
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#define CMD_ACT_MAC_TX_ON 0x0002
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#define CMD_ACT_MAC_MULTICAST_ENABLE 0x0020
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#define CMD_ACT_MAC_BROADCAST_ENABLE 0x0040
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#define CMD_ACT_MAC_PROMISCUOUS_ENABLE 0x0080
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#define CMD_ACT_MAC_ALL_MULTICAST_ENABLE 0x0100
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/* Define action or option for CMD_802_11_RADIO_CONTROL */
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#define CMD_TYPE_AUTO_PREAMBLE 0x0001
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#define CMD_TYPE_SHORT_PREAMBLE 0x0002
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#define CMD_TYPE_LONG_PREAMBLE 0x0003
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#define TURN_ON_RF 0x01
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#define RADIO_ON 0x01
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#define RADIO_OFF 0x00
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#define SET_AUTO_PREAMBLE 0x05
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#define SET_SHORT_PREAMBLE 0x03
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#define SET_LONG_PREAMBLE 0x01
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/* Define action or option for CMD_802_11_RF_CHANNEL */
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#define CMD_OPT_802_11_RF_CHANNEL_GET 0x00
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#define CMD_OPT_802_11_RF_CHANNEL_SET 0x01
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/* Codes for CMD_802_11_SET_MODE */
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enum lbtf_mode {
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LBTF_PASSIVE_MODE,
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LBTF_STA_MODE,
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LBTF_AP_MODE,
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};
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/** Card Event definition */
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#define MACREG_INT_CODE_FIRMWARE_READY 48
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/** Buffer Constants */
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/* The size of SQ memory PPA, DPA are 8 DWORDs, that keep the physical
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* addresses of TxPD buffers. Station has only 8 TxPD available, Whereas
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* driver has more local TxPDs. Each TxPD on the host memory is associated
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* with a Tx control node. The driver maintains 8 RxPD descriptors for
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* station firmware to store Rx packet information.
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*
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* Current version of MAC has a 32x6 multicast address buffer.
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*
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* 802.11b can have up to 14 channels, the driver keeps the
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* BSSID(MAC address) of each APs or Ad hoc stations it has sensed.
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*/
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#define MRVDRV_MAX_MULTICAST_LIST_SIZE 32
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#define LBS_NUM_CMD_BUFFERS 10
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#define LBS_CMD_BUFFER_SIZE (2 * 1024)
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#define MRVDRV_MAX_CHANNEL_SIZE 14
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#define MRVDRV_SNAP_HEADER_LEN 8
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#define LBS_UPLD_SIZE 2312
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#define DEV_NAME_LEN 32
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/** Misc constants */
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/* This section defines 802.11 specific contants */
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#define MRVDRV_MAX_REGION_CODE 6
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/**
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* the table to keep region code
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*/
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#define LBTF_REGDOMAIN_US 0x10
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#define LBTF_REGDOMAIN_CA 0x20
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#define LBTF_REGDOMAIN_EU 0x30
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#define LBTF_REGDOMAIN_SP 0x31
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#define LBTF_REGDOMAIN_FR 0x32
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#define LBTF_REGDOMAIN_JP 0x40
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#define SBI_EVENT_CAUSE_SHIFT 3
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/** RxPD status */
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#define MRVDRV_RXPD_STATUS_OK 0x0001
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/* This is for firmware specific length */
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#define EXTRA_LEN 36
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#define MRVDRV_ETH_TX_PACKET_BUFFER_SIZE \
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(ETH_FRAME_LEN + sizeof(struct txpd) + EXTRA_LEN)
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#define MRVDRV_ETH_RX_PACKET_BUFFER_SIZE \
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(ETH_FRAME_LEN + sizeof(struct rxpd) \
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+ MRVDRV_SNAP_HEADER_LEN + EXTRA_LEN)
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#define CMD_F_HOSTCMD (1 << 0)
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#define FW_CAPINFO_WPA (1 << 0)
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#define RF_ANTENNA_1 0x1
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#define RF_ANTENNA_2 0x2
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#define RF_ANTENNA_AUTO 0xFFFF
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#define LBTF_EVENT_BCN_SENT 55
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/** Global Variable Declaration */
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/** mv_ms_type */
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enum mv_ms_type {
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MVMS_DAT = 0,
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MVMS_CMD = 1,
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MVMS_TXDONE = 2,
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MVMS_EVENT
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};
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extern struct workqueue_struct *lbtf_wq;
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struct lbtf_private;
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struct lbtf_offset_value {
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u32 offset;
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u32 value;
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};
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struct channel_range {
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u8 regdomain;
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u8 start;
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u8 end; /* exclusive (channel must be less than end) */
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};
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struct if_usb_card;
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/** Private structure for the MV device */
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struct lbtf_private {
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void *card;
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struct ieee80211_hw *hw;
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/* Command response buffer */
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u8 cmd_resp_buff[LBS_UPLD_SIZE];
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/* Download sent:
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bit0 1/0=data_sent/data_tx_done,
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bit1 1/0=cmd_sent/cmd_tx_done,
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all other bits reserved 0 */
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struct ieee80211_vif *vif;
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struct work_struct cmd_work;
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struct work_struct tx_work;
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/** Hardware access */
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int (*hw_host_to_card) (struct lbtf_private *priv, u8 type, u8 *payload, u16 nb);
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int (*hw_prog_firmware) (struct if_usb_card *cardp);
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int (*hw_reset_device) (struct if_usb_card *cardp);
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/** Wlan adapter data structure*/
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/** STATUS variables */
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u32 fwrelease;
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u32 fwcapinfo;
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/* protected with big lock */
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struct mutex lock;
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/** command-related variables */
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u16 seqnum;
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/* protected by big lock */
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struct cmd_ctrl_node *cmd_array;
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/** Current command */
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struct cmd_ctrl_node *cur_cmd;
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/** command Queues */
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/** Free command buffers */
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struct list_head cmdfreeq;
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/** Pending command buffers */
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struct list_head cmdpendingq;
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/** spin locks */
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spinlock_t driver_lock;
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/** Timers */
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struct timer_list command_timer;
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int nr_retries;
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int cmd_timed_out;
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u8 cmd_response_rxed;
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/** capability Info used in Association, start, join */
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u16 capability;
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/** MAC address information */
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u8 current_addr[ETH_ALEN];
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u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN];
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u32 nr_of_multicastmacaddr;
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int cur_freq;
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struct sk_buff *skb_to_tx;
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struct sk_buff *tx_skb;
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/** NIC Operation characteristics */
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u16 mac_control;
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u16 regioncode;
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struct channel_range range;
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u8 radioon;
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u32 preamble;
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struct ieee80211_channel channels[14];
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struct ieee80211_rate rates[12];
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struct ieee80211_supported_band band;
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struct lbtf_offset_value offsetvalue;
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u8 fw_ready;
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u8 surpriseremoved;
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struct sk_buff_head bc_ps_buf;
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/* Most recently reported noise in dBm */
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s8 noise;
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};
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/* 802.11-related definitions */
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/* TxPD descriptor */
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struct txpd {
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/* Current Tx packet status */
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__le32 tx_status;
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/* Tx control */
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__le32 tx_control;
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__le32 tx_packet_location;
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/* Tx packet length */
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__le16 tx_packet_length;
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/* First 2 byte of destination MAC address */
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u8 tx_dest_addr_high[2];
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/* Last 4 byte of destination MAC address */
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u8 tx_dest_addr_low[4];
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/* Pkt Priority */
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u8 priority;
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/* Pkt Trasnit Power control */
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u8 powermgmt;
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/* Time the packet has been queued in the driver (units = 2ms) */
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u8 pktdelay_2ms;
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/* reserved */
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u8 reserved1;
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};
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/* RxPD Descriptor */
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struct rxpd {
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/* Current Rx packet status */
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__le16 status;
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/* SNR */
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u8 snr;
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/* Tx control */
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u8 rx_control;
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/* Pkt length */
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__le16 pkt_len;
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/* Noise Floor */
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u8 nf;
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/* Rx Packet Rate */
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u8 rx_rate;
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/* Pkt addr */
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__le32 pkt_ptr;
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/* Next Rx RxPD addr */
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__le32 next_rxpd_ptr;
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/* Pkt Priority */
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u8 priority;
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u8 reserved[3];
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};
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struct cmd_header {
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__le16 command;
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__le16 size;
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__le16 seqnum;
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__le16 result;
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} __packed;
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struct cmd_ctrl_node {
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struct list_head list;
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int result;
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/* command response */
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int (*callback)(struct lbtf_private *,
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unsigned long, struct cmd_header *);
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unsigned long callback_arg;
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/* command data */
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struct cmd_header *cmdbuf;
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/* wait queue */
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u16 cmdwaitqwoken;
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wait_queue_head_t cmdwait_q;
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};
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/*
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* Define data structure for CMD_GET_HW_SPEC
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* This structure defines the response for the GET_HW_SPEC command
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*/
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struct cmd_ds_get_hw_spec {
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struct cmd_header hdr;
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/* HW Interface version number */
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__le16 hwifversion;
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/* HW version number */
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__le16 version;
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/* Max number of TxPD FW can handle */
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__le16 nr_txpd;
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/* Max no of Multicast address */
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__le16 nr_mcast_adr;
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/* MAC address */
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u8 permanentaddr[6];
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/* region Code */
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__le16 regioncode;
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/* Number of antenna used */
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__le16 nr_antenna;
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/* FW release number, example 0x01030304 = 2.3.4p1 */
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__le32 fwrelease;
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/* Base Address of TxPD queue */
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__le32 wcb_base;
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/* Read Pointer of RxPd queue */
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__le32 rxpd_rdptr;
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/* Write Pointer of RxPd queue */
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__le32 rxpd_wrptr;
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/*FW/HW capability */
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__le32 fwcapinfo;
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} __packed;
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struct cmd_ds_mac_control {
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struct cmd_header hdr;
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__le16 action;
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u16 reserved;
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};
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struct cmd_ds_802_11_mac_address {
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struct cmd_header hdr;
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__le16 action;
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uint8_t macadd[ETH_ALEN];
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};
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struct cmd_ds_mac_multicast_addr {
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struct cmd_header hdr;
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__le16 action;
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__le16 nr_of_adrs;
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u8 maclist[ETH_ALEN * MRVDRV_MAX_MULTICAST_LIST_SIZE];
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};
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struct cmd_ds_set_mode {
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struct cmd_header hdr;
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__le16 mode;
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};
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struct cmd_ds_set_bssid {
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struct cmd_header hdr;
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u8 bssid[6];
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u8 activate;
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};
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struct cmd_ds_802_11_radio_control {
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struct cmd_header hdr;
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__le16 action;
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__le16 control;
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};
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struct cmd_ds_802_11_rf_channel {
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struct cmd_header hdr;
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__le16 action;
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__le16 channel;
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__le16 rftype; /* unused */
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__le16 reserved; /* unused */
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u8 channellist[32]; /* unused */
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};
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struct cmd_ds_set_boot2_ver {
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struct cmd_header hdr;
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__le16 action;
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__le16 version;
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};
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struct cmd_ds_802_11_reset {
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struct cmd_header hdr;
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__le16 action;
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};
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struct cmd_ds_802_11_beacon_control {
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struct cmd_header hdr;
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__le16 action;
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__le16 beacon_enable;
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__le16 beacon_period;
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};
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struct cmd_ds_802_11_beacon_set {
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struct cmd_header hdr;
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__le16 len;
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u8 beacon[MRVL_MAX_BCN_SIZE];
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};
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struct lbtf_private;
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struct cmd_ctrl_node;
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/** Function Prototype Declaration */
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void lbtf_set_mac_control(struct lbtf_private *priv);
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int lbtf_free_cmd_buffer(struct lbtf_private *priv);
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int lbtf_allocate_cmd_buffer(struct lbtf_private *priv);
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int lbtf_execute_next_command(struct lbtf_private *priv);
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int lbtf_set_radio_control(struct lbtf_private *priv);
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int lbtf_update_hw_spec(struct lbtf_private *priv);
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int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv);
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void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode);
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void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid);
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int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr);
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int lbtf_set_channel(struct lbtf_private *priv, u8 channel);
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int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon);
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int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable,
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int beacon_int);
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int lbtf_process_rx_command(struct lbtf_private *priv);
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void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd,
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int result);
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void lbtf_cmd_response_rx(struct lbtf_private *priv);
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/* main.c */
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struct chan_freq_power *lbtf_get_region_cfp_table(u8 region,
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int *cfp_no);
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struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev);
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int lbtf_remove_card(struct lbtf_private *priv);
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int lbtf_start_card(struct lbtf_private *priv);
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int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb);
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void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail);
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void lbtf_bcn_sent(struct lbtf_private *priv);
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/* support functions for cmd.c */
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/* lbtf_cmd() infers the size of the buffer to copy data back into, from
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the size of the target of the pointer. Since the command to be sent
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may often be smaller, that size is set in cmd->size by the caller.*/
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#define lbtf_cmd(priv, cmdnr, cmd, cb, cb_arg) ({ \
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uint16_t __sz = le16_to_cpu((cmd)->hdr.size); \
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(cmd)->hdr.size = cpu_to_le16(sizeof(*(cmd))); \
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__lbtf_cmd(priv, cmdnr, &(cmd)->hdr, __sz, cb, cb_arg); \
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})
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#define lbtf_cmd_with_response(priv, cmdnr, cmd) \
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lbtf_cmd(priv, cmdnr, cmd, lbtf_cmd_copyback, (unsigned long) (cmd))
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void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command,
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struct cmd_header *in_cmd, int in_cmd_size);
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int __lbtf_cmd(struct lbtf_private *priv, uint16_t command,
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struct cmd_header *in_cmd, int in_cmd_size,
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int (*callback)(struct lbtf_private *, unsigned long,
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struct cmd_header *),
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unsigned long callback_arg);
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int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra,
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struct cmd_header *resp);
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