cregit-Linux how code gets into the kernel

Release 4.11 drivers/staging/vt6656/device.h

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 *
 * File: device.h
 *
 * Purpose: MAC Data structure
 *
 * Author: Tevin Chen
 *
 * Date: Mar 17, 1997
 *
 */

#ifndef __DEVICE_H__

#define __DEVICE_H__

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/suspend.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/timer.h>
#include <linux/usb.h>
#include <linux/crc32.h>
#include <net/mac80211.h>

#ifdef SIOCETHTOOL

#define DEVICE_ETHTOOL_IOCTL_SUPPORT
#include <linux/ethtool.h>
#else

#undef DEVICE_ETHTOOL_IOCTL_SUPPORT
#endif


#define RATE_1M		0

#define RATE_2M		1

#define RATE_5M		2

#define RATE_11M	3

#define RATE_6M		4

#define RATE_9M		5

#define RATE_12M	6

#define RATE_18M	7

#define RATE_24M	8

#define RATE_36M	9

#define RATE_48M	10

#define RATE_54M	11

#define RATE_AUTO	12


#define MAX_RATE			12

/*
 * device specific
 */

#include "wcmd.h"
#include "desc.h"
#include "key.h"
#include "card.h"


#define VNT_USB_VENDOR_ID                     0x160a

#define VNT_USB_PRODUCT_ID                    0x3184


#define DEVICE_NAME			"vt6656"

#define DEVICE_FULL_DRV_NAM		"VIA Networking Wireless LAN USB Driver"


#define DEVICE_VERSION			"mac80211"


#define CONFIG_PATH			"/etc/vntconfiguration.dat"


#define MAX_UINTS			8

#define OPTION_DEFAULT			{ [0 ... MAX_UINTS-1] = -1}


#define DUPLICATE_RX_CACHE_LENGTH       5


#define AUTO_FB_NONE            0

#define AUTO_FB_0               1

#define AUTO_FB_1               2


#define FB_RATE0                0

#define FB_RATE1                1

/* Antenna Mode */

#define ANT_A                   0

#define ANT_B                   1

#define ANT_DIVERSITY           2

#define ANT_RXD_TXA             3

#define ANT_RXD_TXB             4

#define ANT_UNKNOWN             0xFF

#define ANT_TXA                 0

#define ANT_TXB                 1

#define ANT_RXA                 2

#define ANT_RXB                 3


#define BB_VGA_LEVEL            4

#define BB_VGA_CHANGE_THRESHOLD 3


#define EEP_MAX_CONTEXT_SIZE    256

/* Contents in the EEPROM */

#define EEP_OFS_PAR		0x0

#define EEP_OFS_ANTENNA		0x17

#define EEP_OFS_RADIOCTL	0x18

#define EEP_OFS_RFTYPE		0x1b

#define EEP_OFS_MINCHANNEL	0x1c

#define EEP_OFS_MAXCHANNEL	0x1d

#define EEP_OFS_SIGNATURE	0x1e

#define EEP_OFS_ZONETYPE	0x1f

#define EEP_OFS_RFTABLE		0x20

#define EEP_OFS_PWR_CCK		0x20

#define EEP_OFS_SETPT_CCK	0x21

#define EEP_OFS_PWR_OFDMG	0x23


#define EEP_OFS_CALIB_TX_IQ	0x24

#define EEP_OFS_CALIB_TX_DC	0x25

#define EEP_OFS_CALIB_RX_IQ	0x26


#define EEP_OFS_MAJOR_VER	0x2e

#define EEP_OFS_MINOR_VER	0x2f


#define EEP_OFS_CCK_PWR_TBL	0x30

#define EEP_OFS_OFDM_PWR_TBL	0x40

#define EEP_OFS_OFDMA_PWR_TBL	0x50

/* Bits in EEP_OFS_ANTENNA */

#define EEP_ANTENNA_MAIN	0x1

#define EEP_ANTENNA_AUX		0x2

#define EEP_ANTINV		0x4

/* Bits in EEP_OFS_RADIOCTL */

#define EEP_RADIOCTL_ENABLE	0x80

/* control commands */

#define MESSAGE_TYPE_READ		0x1

#define MESSAGE_TYPE_WRITE		0x0

#define MESSAGE_TYPE_LOCK_OR		0x2

#define MESSAGE_TYPE_LOCK_AND		0x3

#define MESSAGE_TYPE_WRITE_MASK		0x4

#define MESSAGE_TYPE_CARDINIT		0x5

#define MESSAGE_TYPE_INIT_RSP		0x6

#define MESSAGE_TYPE_MACSHUTDOWN	0x7

#define MESSAGE_TYPE_SETKEY		0x8

#define MESSAGE_TYPE_CLRKEYENTRY	0x9

#define MESSAGE_TYPE_WRITE_MISCFF	0xa

#define MESSAGE_TYPE_SET_ANTMD		0xb

#define MESSAGE_TYPE_SELECT_CHANNEL	0xc

#define MESSAGE_TYPE_SET_TSFTBTT	0xd

#define MESSAGE_TYPE_SET_SSTIFS		0xe

#define MESSAGE_TYPE_CHANGE_BBTYPE	0xf

#define MESSAGE_TYPE_DISABLE_PS		0x10

#define MESSAGE_TYPE_WRITE_IFRF		0x11

/* command read/write(index) */

#define MESSAGE_REQUEST_MEM		0x1

#define MESSAGE_REQUEST_BBREG		0x2

#define MESSAGE_REQUEST_MACREG		0x3

#define MESSAGE_REQUEST_EEPROM		0x4

#define MESSAGE_REQUEST_TSF		0x5

#define MESSAGE_REQUEST_TBTT		0x6

#define MESSAGE_REQUEST_BBAGC		0x7

#define MESSAGE_REQUEST_VERSION		0x8

#define MESSAGE_REQUEST_RF_INIT		0x9

#define MESSAGE_REQUEST_RF_INIT2	0xa

#define MESSAGE_REQUEST_RF_CH0		0xb

#define MESSAGE_REQUEST_RF_CH1		0xc

#define MESSAGE_REQUEST_RF_CH2		0xd

/* USB registers */

#define USB_REG4			0x604


#define DEVICE_INIT_COLD	0x0 
/* cold init */

#define DEVICE_INIT_RESET	0x1 
/* reset init or Dx to D0 power remain */

#define DEVICE_INIT_DXPL	0x2 
/* Dx to D0 power lost init */

/* Device init */

struct vnt_cmd_card_init {
	
u8 init_class;
	
u8 exist_sw_net_addr;
	
u8 sw_net_addr[6];
	
u8 short_retry_limit;
	
u8 long_retry_limit;
};


struct vnt_rsp_card_init {
	
u8 status;
	
u8 net_addr[6];
	
u8 rf_type;
	
u8 min_channel;
	
u8 max_channel;
};

/* USB */

/*
 * Enum of context types for SendPacket
 */
enum {
	
CONTEXT_DATA_PACKET = 1,
	
CONTEXT_MGMT_PACKET,
	
CONTEXT_BEACON_PACKET
};

/* RCB (Receive Control Block) */

struct vnt_rcb {
	
void *priv;
	
struct urb *urb;
	
struct sk_buff *skb;
	
int in_use;
};

/* used to track bulk out irps */

struct vnt_usb_send_context {
	
void *priv;
	
struct sk_buff *skb;
	
struct urb *urb;
	
struct ieee80211_hdr *hdr;
	
unsigned int buf_len;
	
u32 frame_len;
	
u16 tx_hdr_size;
	
u16 tx_rate;
	
u8 type;
	
u8 pkt_no;
	
u8 pkt_type;
	
u8 need_ack;
	
u8 fb_option;
	
bool in_use;
	
unsigned char data[MAX_TOTAL_SIZE_WITH_ALL_HEADERS];
};

/*
 * Structure to keep track of USB interrupt packets
 */

struct vnt_interrupt_buffer {
	
u8 *data_buf;
	
bool in_use;
};

/*++ NDIS related */

enum {
	
STATUS_SUCCESS = 0,
	
STATUS_FAILURE,
	
STATUS_RESOURCES,
	
STATUS_PENDING,
};

/* flags for options */

#define DEVICE_FLAGS_UNPLUG		0

#define DEVICE_FLAGS_DISCONNECTED	1


struct vnt_private {
	/* mac80211 */
	
struct ieee80211_hw *hw;
	
struct ieee80211_vif *vif;
	
u8 mac_hw;
	/* netdev */
	
struct usb_device *usb;

	
u64 tsf_time;
	
u8 rx_rate;

	
u32 rx_buf_sz;
	
int mc_list_count;

	
spinlock_t lock;
	
struct mutex usb_lock;

	
unsigned long flags;

	/* USB */
	
struct urb *interrupt_urb;
	
u32 int_interval;

	/* Variables to track resources for the BULK In Pipe */
	
struct vnt_rcb *rcb[CB_MAX_RX_DESC];
	
u32 num_rcb;

	/* Variables to track resources for the BULK Out Pipe */
	
struct vnt_usb_send_context *tx_context[CB_MAX_TX_DESC];
	
u32 num_tx_context;

	/* Variables to track resources for the Interrupt In Pipe */
	
struct vnt_interrupt_buffer int_buf;

	/* Version control */
	
u16 firmware_version;
	
u8 local_id;
	
u8 rf_type;
	
u8 bb_rx_conf;

	
struct vnt_cmd_card_init init_command;
	
struct vnt_rsp_card_init init_response;
	u8 current_net_addr[ETH_ALEN] __aligned(2);
	u8 permanent_net_addr[ETH_ALEN] __aligned(2);

	
u8 exist_sw_net_addr;

	
u64 current_tsf;

	/* 802.11 MAC specific */
	
u32 current_rssi;

	/* Antenna Diversity */
	
int tx_rx_ant_inv;
	
u32 rx_antenna_sel;
	
u8 rx_antenna_mode;
	
u8 tx_antenna_mode;
	
u8 radio_ctl;

	/* IFS & Cw */
	
u32 sifs;  /* Current SIFS */
	
u32 difs;  /* Current DIFS */
	
u32 eifs;  /* Current EIFS */
	
u32 slot;  /* Current SlotTime */

	/* Rate */
	
u8 bb_type; /* 0: 11A, 1:11B, 2:11G */
	
u8 packet_type; /* 0:11a 1:11b 2:11gb 3:11ga */
	
u32 basic_rates;
	
u8 top_ofdm_basic_rate;
	
u8 top_cck_basic_rate;

	
u8 eeprom[EEP_MAX_CONTEXT_SIZE];  /*u32 alignment */

	
u8 preamble_type;

	/* For RF Power table */
	
u8 cck_pwr;
	
u8 ofdm_pwr_g;
	
u8 ofdm_pwr_a;
	
u8 power;
	
u8 cck_pwr_tbl[14];
	
u8 ofdm_pwr_tbl[14];
	
u8 ofdm_a_pwr_tbl[42];

	
u16 current_rate;
	
u16 tx_rate_fb0;
	
u16 tx_rate_fb1;

	
u8 short_retry_limit;
	
u8 long_retry_limit;

	
enum nl80211_iftype op_mode;

	
int short_slot_time;

	/* Power save */
	
u16 current_aid;

	/* Beacon related */
	
u16 seq_counter;

	
enum vnt_cmd_state command_state;

	
enum vnt_cmd command;

	/* 802.11 counter */

	
enum vnt_cmd cmd_queue[CMD_Q_SIZE];
	
u32 cmd_dequeue_idx;
	
u32 cmd_enqueue_idx;
	
u32 free_cmd_queue;
	
int cmd_running;

	
unsigned long key_entry_inuse;

	
u8 auto_fb_ctrl;

	/* For Update BaseBand VGA Gain Offset */
	
u8 bb_vga[BB_VGA_LEVEL];

	
u8 bb_pre_ed_rssi;
	
u8 bb_pre_ed_index;

	
u16 wake_up_count;

	/* command timer */
	
struct delayed_work run_command_work;

	
struct ieee80211_low_level_stats low_stats;
};


#define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) {       \
        if ((uVar) >= ((uModulo) - 1))                  \
                (uVar) = 0;                             \
        else                                            \
                (uVar)++;                               \
}

int vnt_init(struct vnt_private *priv);

#endif

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