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marcus.erl |
/*** -*- linux-c -*- **********************************************************
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Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
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Copyright 2000-2001 ATMEL Corporation.
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Copyright 2003-2004 Simon Kelley.
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This code was developed from version 2.1.1 of the Atmel drivers,
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released by Atmel corp. under the GPL in December 2002. It also
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includes code from the Linux aironet drivers (C) Benjamin Reed,
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and the Linux PCMCIA package, (C) David Hinds and the Linux wireless
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extensions, (C) Jean Tourrilhes.
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The firmware module for reading the MAC address of the card comes from
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net.russotto.AtmelMACFW, written by Matthew T. Russotto and copyright
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by him. net.russotto.AtmelMACFW is used under the GPL license version 2.
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This file contains the module in binary form and, under the terms
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of the GPL, in source form. The source is located at the end of the file.
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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
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(at your option) any later version.
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This software is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Atmel wireless lan drivers; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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For all queries about this code, please contact the current author,
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Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
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Credit is due to HP UK and Cambridge Online Systems Ltd for supplying
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hardware used during development of this driver.
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******************************************************************************/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/ctype.h>
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#include <linux/timer.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/uaccess.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/if_arp.h>
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#include <linux/ioport.h>
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#include <linux/fcntl.h>
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#include <linux/delay.h>
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#include <linux/wireless.h>
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#include <net/iw_handler.h>
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#include <linux/byteorder/generic.h>
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#include <linux/crc32.h>
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#include <linux/proc_fs.h>
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#include <linux/device.h>
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#include <linux/moduleparam.h>
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#include <linux/firmware.h>
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#include <net/ieee80211.h>
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#include "atmel.h"
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#define DRIVER_MAJOR 0
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#define DRIVER_MINOR 98
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MODULE_AUTHOR("Simon Kelley");
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MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards");
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/* The name of the firmware file to be loaded
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over-rides any automatic selection */
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static char *firmware = NULL;
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module_param(firmware, charp, 0);
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/* table of firmware file names */
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static struct {
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AtmelFWType fw_type;
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const char *fw_file;
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const char *fw_file_ext;
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} fw_table[] = {
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{ ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" },
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{ ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" },
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{ ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" },
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{ ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" },
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{ ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" },
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{ ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" },
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{ ATMEL_FW_TYPE_504A_2958,"atmel_at76c504a_2958","bin" },
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{ ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" },
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{ ATMEL_FW_TYPE_NONE, NULL, NULL }
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};
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#define MAX_SSID_LENGTH 32
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#define MGMT_JIFFIES (256 * HZ / 100)
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#define MAX_BSS_ENTRIES 64
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/* registers */
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#define GCR 0x00 // (SIR0) General Configuration Register
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#define BSR 0x02 // (SIR1) Bank Switching Select Register
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#define AR 0x04
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#define DR 0x08
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#define MR1 0x12 // Mirror Register 1
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#define MR2 0x14 // Mirror Register 2
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#define MR3 0x16 // Mirror Register 3
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#define MR4 0x18 // Mirror Register 4
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#define GPR1 0x0c
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#define GPR2 0x0e
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#define GPR3 0x10
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//
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// Constants for the GCR register.
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//
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#define GCR_REMAP 0x0400 // Remap internal SRAM to 0
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#define GCR_SWRES 0x0080 // BIU reset (ARM and PAI are NOT reset)
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#define GCR_CORES 0x0060 // Core Reset (ARM and PAI are reset)
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#define GCR_ENINT 0x0002 // Enable Interrupts
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#define GCR_ACKINT 0x0008 // Acknowledge Interrupts
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#define BSS_SRAM 0x0200 // AMBA module selection --> SRAM
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#define BSS_IRAM 0x0100 // AMBA module selection --> IRAM
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//
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// Constants for the MR registers.
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//
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#define MAC_INIT_COMPLETE 0x0001 // MAC init has been completed
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#define MAC_BOOT_COMPLETE 0x0010 // MAC boot has been completed
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#define MAC_INIT_OK 0x0002 // MAC boot has been completed
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#define MIB_MAX_DATA_BYTES 212
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#define MIB_HEADER_SIZE 4 /* first four fields */
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struct get_set_mib {
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u8 type;
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u8 size;
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u8 index;
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u8 reserved;
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u8 data[MIB_MAX_DATA_BYTES];
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};
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struct rx_desc {
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u32 Next;
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u16 MsduPos;
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u16 MsduSize;
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u8 State;
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u8 Status;
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u8 Rate;
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u8 Rssi;
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u8 LinkQuality;
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u8 PreambleType;
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u16 Duration;
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u32 RxTime;
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};
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#define RX_DESC_FLAG_VALID 0x80
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#define RX_DESC_FLAG_CONSUMED 0x40
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#define RX_DESC_FLAG_IDLE 0x00
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#define RX_STATUS_SUCCESS 0x00
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#define RX_DESC_MSDU_POS_OFFSET 4
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#define RX_DESC_MSDU_SIZE_OFFSET 6
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#define RX_DESC_FLAGS_OFFSET 8
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#define RX_DESC_STATUS_OFFSET 9
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#define RX_DESC_RSSI_OFFSET 11
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#define RX_DESC_LINK_QUALITY_OFFSET 12
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#define RX_DESC_PREAMBLE_TYPE_OFFSET 13
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#define RX_DESC_DURATION_OFFSET 14
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#define RX_DESC_RX_TIME_OFFSET 16
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struct tx_desc {
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u32 NextDescriptor;
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u16 TxStartOfFrame;
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u16 TxLength;
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u8 TxState;
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u8 TxStatus;
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u8 RetryCount;
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u8 TxRate;
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u8 KeyIndex;
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u8 ChiperType;
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u8 ChipreLength;
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u8 Reserved1;
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u8 Reserved;
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u8 PacketType;
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u16 HostTxLength;
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};
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#define TX_DESC_NEXT_OFFSET 0
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#define TX_DESC_POS_OFFSET 4
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#define TX_DESC_SIZE_OFFSET 6
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#define TX_DESC_FLAGS_OFFSET 8
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#define TX_DESC_STATUS_OFFSET 9
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#define TX_DESC_RETRY_OFFSET 10
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#define TX_DESC_RATE_OFFSET 11
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#define TX_DESC_KEY_INDEX_OFFSET 12
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#define TX_DESC_CIPHER_TYPE_OFFSET 13
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#define TX_DESC_CIPHER_LENGTH_OFFSET 14
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#define TX_DESC_PACKET_TYPE_OFFSET 17
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#define TX_DESC_HOST_LENGTH_OFFSET 18
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///////////////////////////////////////////////////////
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// Host-MAC interface
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///////////////////////////////////////////////////////
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#define TX_STATUS_SUCCESS 0x00
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#define TX_FIRM_OWN 0x80
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#define TX_DONE 0x40
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#define TX_ERROR 0x01
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#define TX_PACKET_TYPE_DATA 0x01
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#define TX_PACKET_TYPE_MGMT 0x02
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#define ISR_EMPTY 0x00 // no bits set in ISR
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#define ISR_TxCOMPLETE 0x01 // packet transmitted
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#define ISR_RxCOMPLETE 0x02 // packet received
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#define ISR_RxFRAMELOST 0x04 // Rx Frame lost
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#define ISR_FATAL_ERROR 0x08 // Fatal error
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#define ISR_COMMAND_COMPLETE 0x10 // command completed
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#define ISR_OUT_OF_RANGE 0x20 // command completed
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#define ISR_IBSS_MERGE 0x40 // (4.1.2.30): IBSS merge
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#define ISR_GENERIC_IRQ 0x80
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#define Local_Mib_Type 0x01
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#define Mac_Address_Mib_Type 0x02
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#define Mac_Mib_Type 0x03
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#define Statistics_Mib_Type 0x04
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#define Mac_Mgmt_Mib_Type 0x05
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#define Mac_Wep_Mib_Type 0x06
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#define Phy_Mib_Type 0x07
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#define Multi_Domain_MIB 0x08
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#define MAC_MGMT_MIB_CUR_BSSID_POS 14
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#define MAC_MIB_FRAG_THRESHOLD_POS 8
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#define MAC_MIB_RTS_THRESHOLD_POS 10
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#define MAC_MIB_SHORT_RETRY_POS 16
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#define MAC_MIB_LONG_RETRY_POS 17
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#define MAC_MIB_SHORT_RETRY_LIMIT_POS 16
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#define MAC_MGMT_MIB_BEACON_PER_POS 0
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#define MAC_MGMT_MIB_STATION_ID_POS 6
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#define MAC_MGMT_MIB_CUR_PRIVACY_POS 11
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#define MAC_MGMT_MIB_CUR_BSSID_POS 14
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#define MAC_MGMT_MIB_PS_MODE_POS 53
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#define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54
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#define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56
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#define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57
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#define PHY_MIB_CHANNEL_POS 14
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#define PHY_MIB_RATE_SET_POS 20
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#define PHY_MIB_REG_DOMAIN_POS 26
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#define LOCAL_MIB_AUTO_TX_RATE_POS 3
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#define LOCAL_MIB_SSID_SIZE 5
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#define LOCAL_MIB_TX_PROMISCUOUS_POS 6
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#define LOCAL_MIB_TX_MGMT_RATE_POS 7
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#define LOCAL_MIB_TX_CONTROL_RATE_POS 8
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#define LOCAL_MIB_PREAMBLE_TYPE 9
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#define MAC_ADDR_MIB_MAC_ADDR_POS 0
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#define CMD_Set_MIB_Vars 0x01
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#define CMD_Get_MIB_Vars 0x02
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#define CMD_Scan 0x03
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#define CMD_Join 0x04
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#define CMD_Start 0x05
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#define CMD_EnableRadio 0x06
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#define CMD_DisableRadio 0x07
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#define CMD_SiteSurvey 0x0B
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#define CMD_STATUS_IDLE 0x00
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#define CMD_STATUS_COMPLETE 0x01
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#define CMD_STATUS_UNKNOWN 0x02
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#define CMD_STATUS_INVALID_PARAMETER 0x03
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#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
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#define CMD_STATUS_TIME_OUT 0x07
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#define CMD_STATUS_IN_PROGRESS 0x08
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#define CMD_STATUS_REJECTED_RADIO_OFF 0x09
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#define CMD_STATUS_HOST_ERROR 0xFF
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#define CMD_STATUS_BUSY 0xFE
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#define CMD_BLOCK_COMMAND_OFFSET 0
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#define CMD_BLOCK_STATUS_OFFSET 1
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#define CMD_BLOCK_PARAMETERS_OFFSET 4
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#define SCAN_OPTIONS_SITE_SURVEY 0x80
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#define MGMT_FRAME_BODY_OFFSET 24
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#define MAX_AUTHENTICATION_RETRIES 3
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#define MAX_ASSOCIATION_RETRIES 3
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#define AUTHENTICATION_RESPONSE_TIME_OUT 1000
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#define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */
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#define LOOP_RETRY_LIMIT 500000
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#define ACTIVE_MODE 1
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#define PS_MODE 2
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#define MAX_ENCRYPTION_KEYS 4
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#define MAX_ENCRYPTION_KEY_SIZE 40
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///////////////////////////////////////////////////////////////////////////
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// 802.11 related definitions
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///////////////////////////////////////////////////////////////////////////
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//
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// Regulatory Domains
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//
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#define REG_DOMAIN_FCC 0x10 //Channels 1-11 USA
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#define REG_DOMAIN_DOC 0x20 //Channel 1-11 Canada
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#define REG_DOMAIN_ETSI 0x30 //Channel 1-13 Europe (ex Spain/France)
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|
|
#define REG_DOMAIN_SPAIN 0x31 //Channel 10-11 Spain
|
| 325 |
|
|
#define REG_DOMAIN_FRANCE 0x32 //Channel 10-13 France
|
| 326 |
|
|
#define REG_DOMAIN_MKK 0x40 //Channel 14 Japan
|
| 327 |
|
|
#define REG_DOMAIN_MKK1 0x41 //Channel 1-14 Japan(MKK1)
|
| 328 |
|
|
#define REG_DOMAIN_ISRAEL 0x50 //Channel 3-9 ISRAEL
|
| 329 |
|
|
|
| 330 |
|
|
#define BSS_TYPE_AD_HOC 1
|
| 331 |
|
|
#define BSS_TYPE_INFRASTRUCTURE 2
|
| 332 |
|
|
|
| 333 |
|
|
#define SCAN_TYPE_ACTIVE 0
|
| 334 |
|
|
#define SCAN_TYPE_PASSIVE 1
|
| 335 |
|
|
|
| 336 |
|
|
#define LONG_PREAMBLE 0
|
| 337 |
|
|
#define SHORT_PREAMBLE 1
|
| 338 |
|
|
#define AUTO_PREAMBLE 2
|
| 339 |
|
|
|
| 340 |
|
|
#define DATA_FRAME_WS_HEADER_SIZE 30
|
| 341 |
|
|
|
| 342 |
|
|
/* promiscuous mode control */
|
| 343 |
|
|
#define PROM_MODE_OFF 0x0
|
| 344 |
|
|
#define PROM_MODE_UNKNOWN 0x1
|
| 345 |
|
|
#define PROM_MODE_CRC_FAILED 0x2
|
| 346 |
|
|
#define PROM_MODE_DUPLICATED 0x4
|
| 347 |
|
|
#define PROM_MODE_MGMT 0x8
|
| 348 |
|
|
#define PROM_MODE_CTRL 0x10
|
| 349 |
|
|
#define PROM_MODE_BAD_PROTOCOL 0x20
|
| 350 |
|
|
|
| 351 |
|
|
#define IFACE_INT_STATUS_OFFSET 0
|
| 352 |
|
|
#define IFACE_INT_MASK_OFFSET 1
|
| 353 |
|
|
#define IFACE_LOCKOUT_HOST_OFFSET 2
|
| 354 |
|
|
#define IFACE_LOCKOUT_MAC_OFFSET 3
|
| 355 |
|
|
#define IFACE_FUNC_CTRL_OFFSET 28
|
| 356 |
|
|
#define IFACE_MAC_STAT_OFFSET 30
|
| 357 |
|
|
#define IFACE_GENERIC_INT_TYPE_OFFSET 32
|
| 358 |
|
|
|
| 359 |
|
|
#define CIPHER_SUITE_NONE 0
|
| 360 |
|
|
#define CIPHER_SUITE_WEP_64 1
|
| 361 |
|
|
#define CIPHER_SUITE_TKIP 2
|
| 362 |
|
|
#define CIPHER_SUITE_AES 3
|
| 363 |
|
|
#define CIPHER_SUITE_CCX 4
|
| 364 |
|
|
#define CIPHER_SUITE_WEP_128 5
|
| 365 |
|
|
|
| 366 |
|
|
//
|
| 367 |
|
|
// IFACE MACROS & definitions
|
| 368 |
|
|
//
|
| 369 |
|
|
//
|
| 370 |
|
|
|
| 371 |
|
|
// FuncCtrl field:
|
| 372 |
|
|
//
|
| 373 |
|
|
#define FUNC_CTRL_TxENABLE 0x10
|
| 374 |
|
|
#define FUNC_CTRL_RxENABLE 0x20
|
| 375 |
|
|
#define FUNC_CTRL_INIT_COMPLETE 0x01
|
| 376 |
|
|
|
| 377 |
|
|
/* A stub firmware image which reads the MAC address from NVRAM on the card.
|
| 378 |
|
|
For copyright information and source see the end of this file. */
|
| 379 |
|
|
static u8 mac_reader[] = {
|
| 380 |
|
|
0x06,0x00,0x00,0xea,0x04,0x00,0x00,0xea,0x03,0x00,0x00,0xea,0x02,0x00,0x00,0xea,
|
| 381 |
|
|
0x01,0x00,0x00,0xea,0x00,0x00,0x00,0xea,0xff,0xff,0xff,0xea,0xfe,0xff,0xff,0xea,
|
| 382 |
|
|
0xd3,0x00,0xa0,0xe3,0x00,0xf0,0x21,0xe1,0x0e,0x04,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
|
| 383 |
|
|
0x81,0x11,0xa0,0xe1,0x00,0x10,0x81,0xe3,0x00,0x10,0x80,0xe5,0x1c,0x10,0x90,0xe5,
|
| 384 |
|
|
0x10,0x10,0xc1,0xe3,0x1c,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,0x08,0x10,0x80,0xe5,
|
| 385 |
|
|
0x02,0x03,0xa0,0xe3,0x00,0x10,0xa0,0xe3,0xb0,0x10,0xc0,0xe1,0xb4,0x10,0xc0,0xe1,
|
| 386 |
|
|
0xb8,0x10,0xc0,0xe1,0xbc,0x10,0xc0,0xe1,0x56,0xdc,0xa0,0xe3,0x21,0x00,0x00,0xeb,
|
| 387 |
|
|
0x0a,0x00,0xa0,0xe3,0x1a,0x00,0x00,0xeb,0x10,0x00,0x00,0xeb,0x07,0x00,0x00,0xeb,
|
| 388 |
|
|
0x02,0x03,0xa0,0xe3,0x02,0x14,0xa0,0xe3,0xb4,0x10,0xc0,0xe1,0x4c,0x10,0x9f,0xe5,
|
| 389 |
|
|
0xbc,0x10,0xc0,0xe1,0x10,0x10,0xa0,0xe3,0xb8,0x10,0xc0,0xe1,0xfe,0xff,0xff,0xea,
|
| 390 |
|
|
0x00,0x40,0x2d,0xe9,0x00,0x20,0xa0,0xe3,0x02,0x3c,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
|
| 391 |
|
|
0x28,0x00,0x9f,0xe5,0x37,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,
|
| 392 |
|
|
0x00,0x40,0x2d,0xe9,0x12,0x2e,0xa0,0xe3,0x06,0x30,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
|
| 393 |
|
|
0x02,0x04,0xa0,0xe3,0x2f,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,
|
| 394 |
|
|
0x00,0x02,0x00,0x02,0x80,0x01,0x90,0xe0,0x01,0x00,0x00,0x0a,0x01,0x00,0x50,0xe2,
|
| 395 |
|
|
0xfc,0xff,0xff,0xea,0x1e,0xff,0x2f,0xe1,0x80,0x10,0xa0,0xe3,0xf3,0x06,0xa0,0xe3,
|
| 396 |
|
|
0x00,0x10,0x80,0xe5,0x00,0x10,0xa0,0xe3,0x00,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,
|
| 397 |
|
|
0x04,0x10,0x80,0xe5,0x00,0x10,0x80,0xe5,0x0e,0x34,0xa0,0xe3,0x1c,0x10,0x93,0xe5,
|
| 398 |
|
|
0x02,0x1a,0x81,0xe3,0x1c,0x10,0x83,0xe5,0x58,0x11,0x9f,0xe5,0x30,0x10,0x80,0xe5,
|
| 399 |
|
|
0x54,0x11,0x9f,0xe5,0x34,0x10,0x80,0xe5,0x38,0x10,0x80,0xe5,0x3c,0x10,0x80,0xe5,
|
| 400 |
|
|
0x10,0x10,0x90,0xe5,0x08,0x00,0x90,0xe5,0x1e,0xff,0x2f,0xe1,0xf3,0x16,0xa0,0xe3,
|
| 401 |
|
|
0x08,0x00,0x91,0xe5,0x05,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,0x10,0x00,0x91,0xe5,
|
| 402 |
|
|
0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0xff,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,
|
| 403 |
|
|
0x10,0x00,0x91,0xe5,0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5,
|
| 404 |
|
|
0x10,0x00,0x91,0xe5,0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5,
|
| 405 |
|
|
0xff,0x00,0x00,0xe2,0x1e,0xff,0x2f,0xe1,0x30,0x40,0x2d,0xe9,0x00,0x50,0xa0,0xe1,
|
| 406 |
|
|
0x03,0x40,0xa0,0xe1,0xa2,0x02,0xa0,0xe1,0x08,0x00,0x00,0xe2,0x03,0x00,0x80,0xe2,
|
| 407 |
|
|
0xd8,0x10,0x9f,0xe5,0x00,0x00,0xc1,0xe5,0x01,0x20,0xc1,0xe5,0xe2,0xff,0xff,0xeb,
|
| 408 |
|
|
0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x1a,0x14,0x00,0xa0,0xe3,0xc4,0xff,0xff,0xeb,
|
| 409 |
|
|
0x04,0x20,0xa0,0xe1,0x05,0x10,0xa0,0xe1,0x02,0x00,0xa0,0xe3,0x01,0x00,0x00,0xeb,
|
| 410 |
|
|
0x30,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x70,0x40,0x2d,0xe9,0xf3,0x46,0xa0,0xe3,
|
| 411 |
|
|
0x00,0x30,0xa0,0xe3,0x00,0x00,0x50,0xe3,0x08,0x00,0x00,0x9a,0x8c,0x50,0x9f,0xe5,
|
| 412 |
|
|
0x03,0x60,0xd5,0xe7,0x0c,0x60,0x84,0xe5,0x10,0x60,0x94,0xe5,0x02,0x00,0x16,0xe3,
|
| 413 |
|
|
0xfc,0xff,0xff,0x0a,0x01,0x30,0x83,0xe2,0x00,0x00,0x53,0xe1,0xf7,0xff,0xff,0x3a,
|
| 414 |
|
|
0xff,0x30,0xa0,0xe3,0x0c,0x30,0x84,0xe5,0x08,0x00,0x94,0xe5,0x10,0x00,0x94,0xe5,
|
| 415 |
|
|
0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x94,0xe5,0x00,0x00,0xa0,0xe3,
|
| 416 |
|
|
0x00,0x00,0x52,0xe3,0x0b,0x00,0x00,0x9a,0x10,0x50,0x94,0xe5,0x02,0x00,0x15,0xe3,
|
| 417 |
|
|
0xfc,0xff,0xff,0x0a,0x0c,0x30,0x84,0xe5,0x10,0x50,0x94,0xe5,0x01,0x00,0x15,0xe3,
|
| 418 |
|
|
0xfc,0xff,0xff,0x0a,0x08,0x50,0x94,0xe5,0x01,0x50,0xc1,0xe4,0x01,0x00,0x80,0xe2,
|
| 419 |
|
|
0x02,0x00,0x50,0xe1,0xf3,0xff,0xff,0x3a,0xc8,0x00,0xa0,0xe3,0x98,0xff,0xff,0xeb,
|
| 420 |
|
|
0x70,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x01,0x0c,0x00,0x02,0x01,0x02,0x00,0x02,
|
| 421 |
|
|
0x00,0x01,0x00,0x02
|
| 422 |
|
|
};
|
| 423 |
|
|
|
| 424 |
|
|
struct atmel_private {
|
| 425 |
|
|
void *card; /* Bus dependent stucture varies for PCcard */
|
| 426 |
|
|
int (*present_callback)(void *); /* And callback which uses it */
|
| 427 |
|
|
char firmware_id[32];
|
| 428 |
|
|
AtmelFWType firmware_type;
|
| 429 |
|
|
u8 *firmware;
|
| 430 |
|
|
int firmware_length;
|
| 431 |
|
|
struct timer_list management_timer;
|
| 432 |
|
|
struct net_device *dev;
|
| 433 |
|
|
struct device *sys_dev;
|
| 434 |
|
|
struct iw_statistics wstats;
|
| 435 |
|
|
struct net_device_stats stats; // device stats
|
| 436 |
|
|
spinlock_t irqlock, timerlock; // spinlocks
|
| 437 |
|
|
enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type;
|
| 438 |
|
|
enum {
|
| 439 |
|
|
CARD_TYPE_PARALLEL_FLASH,
|
| 440 |
|
|
CARD_TYPE_SPI_FLASH,
|
| 441 |
|
|
CARD_TYPE_EEPROM
|
| 442 |
|
|
} card_type;
|
| 443 |
|
|
int do_rx_crc; /* If we need to CRC incoming packets */
|
| 444 |
|
|
int probe_crc; /* set if we don't yet know */
|
| 445 |
|
|
int crc_ok_cnt, crc_ko_cnt; /* counters for probing */
|
| 446 |
|
|
u16 rx_desc_head;
|
| 447 |
|
|
u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous;
|
| 448 |
|
|
u16 tx_free_mem, tx_buff_head, tx_buff_tail;
|
| 449 |
|
|
|
| 450 |
|
|
u16 frag_seq, frag_len, frag_no;
|
| 451 |
|
|
u8 frag_source[6];
|
| 452 |
|
|
|
| 453 |
|
|
u8 wep_is_on, default_key, exclude_unencrypted, encryption_level;
|
| 454 |
|
|
u8 group_cipher_suite, pairwise_cipher_suite;
|
| 455 |
|
|
u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
|
| 456 |
|
|
int wep_key_len[MAX_ENCRYPTION_KEYS];
|
| 457 |
|
|
int use_wpa, radio_on_broken; /* firmware dependent stuff. */
|
| 458 |
|
|
|
| 459 |
|
|
u16 host_info_base;
|
| 460 |
|
|
struct host_info_struct {
|
| 461 |
|
|
/* NB this is matched to the hardware, don't change. */
|
| 462 |
|
|
u8 volatile int_status;
|
| 463 |
|
|
u8 volatile int_mask;
|
| 464 |
|
|
u8 volatile lockout_host;
|
| 465 |
|
|
u8 volatile lockout_mac;
|
| 466 |
|
|
|
| 467 |
|
|
u16 tx_buff_pos;
|
| 468 |
|
|
u16 tx_buff_size;
|
| 469 |
|
|
u16 tx_desc_pos;
|
| 470 |
|
|
u16 tx_desc_count;
|
| 471 |
|
|
|
| 472 |
|
|
u16 rx_buff_pos;
|
| 473 |
|
|
u16 rx_buff_size;
|
| 474 |
|
|
u16 rx_desc_pos;
|
| 475 |
|
|
u16 rx_desc_count;
|
| 476 |
|
|
|
| 477 |
|
|
u16 build_version;
|
| 478 |
|
|
u16 command_pos;
|
| 479 |
|
|
|
| 480 |
|
|
u16 major_version;
|
| 481 |
|
|
u16 minor_version;
|
| 482 |
|
|
|
| 483 |
|
|
u16 func_ctrl;
|
| 484 |
|
|
u16 mac_status;
|
| 485 |
|
|
u16 generic_IRQ_type;
|
| 486 |
|
|
u8 reserved[2];
|
| 487 |
|
|
} host_info;
|
| 488 |
|
|
|
| 489 |
|
|
enum {
|
| 490 |
|
|
STATION_STATE_SCANNING,
|
| 491 |
|
|
STATION_STATE_JOINNING,
|
| 492 |
|
|
STATION_STATE_AUTHENTICATING,
|
| 493 |
|
|
STATION_STATE_ASSOCIATING,
|
| 494 |
|
|
STATION_STATE_READY,
|
| 495 |
|
|
STATION_STATE_REASSOCIATING,
|
| 496 |
|
|
STATION_STATE_DOWN,
|
| 497 |
|
|
STATION_STATE_MGMT_ERROR
|
| 498 |
|
|
} station_state;
|
| 499 |
|
|
|
| 500 |
|
|
int operating_mode, power_mode;
|
| 501 |
|
|
time_t last_qual;
|
| 502 |
|
|
int beacons_this_sec;
|
| 503 |
|
|
int channel;
|
| 504 |
|
|
int reg_domain, config_reg_domain;
|
| 505 |
|
|
int tx_rate;
|
| 506 |
|
|
int auto_tx_rate;
|
| 507 |
|
|
int rts_threshold;
|
| 508 |
|
|
int frag_threshold;
|
| 509 |
|
|
int long_retry, short_retry;
|
| 510 |
|
|
int preamble;
|
| 511 |
|
|
int default_beacon_period, beacon_period, listen_interval;
|
| 512 |
|
|
int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum;
|
| 513 |
|
|
int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt;
|
| 514 |
|
|
enum {
|
| 515 |
|
|
SITE_SURVEY_IDLE,
|
| 516 |
|
|
SITE_SURVEY_IN_PROGRESS,
|
| 517 |
|
|
SITE_SURVEY_COMPLETED
|
| 518 |
|
|
} site_survey_state;
|
| 519 |
|
|
time_t last_survey;
|
| 520 |
|
|
|
| 521 |
|
|
int station_was_associated, station_is_associated;
|
| 522 |
|
|
int fast_scan;
|
| 523 |
|
|
|
| 524 |
|
|
struct bss_info {
|
| 525 |
|
|
int channel;
|
| 526 |
|
|
int SSIDsize;
|
| 527 |
|
|
int RSSI;
|
| 528 |
|
|
int UsingWEP;
|
| 529 |
|
|
int preamble;
|
| 530 |
|
|
int beacon_period;
|
| 531 |
|
|
int BSStype;
|
| 532 |
|
|
u8 BSSID[6];
|
| 533 |
|
|
u8 SSID[MAX_SSID_LENGTH];
|
| 534 |
|
|
} BSSinfo[MAX_BSS_ENTRIES];
|
| 535 |
|
|
int BSS_list_entries, current_BSS;
|
| 536 |
|
|
int connect_to_any_BSS;
|
| 537 |
|
|
int SSID_size, new_SSID_size;
|
| 538 |
|
|
u8 CurrentBSSID[6], BSSID[6];
|
| 539 |
|
|
u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH];
|
| 540 |
|
|
u64 last_beacon_timestamp;
|
| 541 |
|
|
u8 rx_buf[MAX_WIRELESS_BODY];
|
| 542 |
|
|
};
|
| 543 |
|
|
|
| 544 |
|
|
static u8 atmel_basic_rates[4] = {0x82,0x84,0x0b,0x16};
|
| 545 |
|
|
|
| 546 |
|
|
static const struct {
|
| 547 |
|
|
int reg_domain;
|
| 548 |
|
|
int min, max;
|
| 549 |
|
|
char *name;
|
| 550 |
|
|
} channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" },
|
| 551 |
|
|
{ REG_DOMAIN_DOC, 1, 11, "Canada" },
|
| 552 |
|
|
{ REG_DOMAIN_ETSI, 1, 13, "Europe" },
|
| 553 |
|
|
{ REG_DOMAIN_SPAIN, 10, 11, "Spain" },
|
| 554 |
|
|
{ REG_DOMAIN_FRANCE, 10, 13, "France" },
|
| 555 |
|
|
{ REG_DOMAIN_MKK, 14, 14, "MKK" },
|
| 556 |
|
|
{ REG_DOMAIN_MKK1, 1, 14, "MKK1" },
|
| 557 |
|
|
{ REG_DOMAIN_ISRAEL, 3, 9, "Israel"} };
|
| 558 |
|
|
|
| 559 |
|
|
static void build_wpa_mib(struct atmel_private *priv);
|
| 560 |
|
|
static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
|
| 561 |
|
|
static void atmel_copy_to_card(struct net_device *dev, u16 dest,
|
| 562 |
|
|
unsigned char *src, u16 len);
|
| 563 |
|
|
static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
|
| 564 |
|
|
u16 src, u16 len);
|
| 565 |
|
|
static void atmel_set_gcr(struct net_device *dev, u16 mask);
|
| 566 |
|
|
static void atmel_clear_gcr(struct net_device *dev, u16 mask);
|
| 567 |
|
|
static int atmel_lock_mac(struct atmel_private *priv);
|
| 568 |
|
|
static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data);
|
| 569 |
|
|
static void atmel_command_irq(struct atmel_private *priv);
|
| 570 |
|
|
static int atmel_validate_channel(struct atmel_private *priv, int channel);
|
| 571 |
|
|
static void atmel_management_frame(struct atmel_private *priv,
|
| 572 |
|
|
struct ieee80211_hdr_4addr *header,
|
| 573 |
|
|
u16 frame_len, u8 rssi);
|
| 574 |
|
|
static void atmel_management_timer(u_long a);
|
| 575 |
|
|
static void atmel_send_command(struct atmel_private *priv, int command,
|
| 576 |
|
|
void *cmd, int cmd_size);
|
| 577 |
|
|
static int atmel_send_command_wait(struct atmel_private *priv, int command,
|
| 578 |
|
|
void *cmd, int cmd_size);
|
| 579 |
|
|
static void atmel_transmit_management_frame(struct atmel_private *priv,
|
| 580 |
|
|
struct ieee80211_hdr_4addr *header,
|
| 581 |
|
|
u8 *body, int body_len);
|
| 582 |
|
|
|
| 583 |
|
|
static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index);
|
| 584 |
|
|
static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index,
|
| 585 |
|
|
u8 data);
|
| 586 |
|
|
static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
|
| 587 |
|
|
u16 data);
|
| 588 |
|
|
static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
|
| 589 |
|
|
u8 *data, int data_len);
|
| 590 |
|
|
static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
|
| 591 |
|
|
u8 *data, int data_len);
|
| 592 |
|
|
static void atmel_scan(struct atmel_private *priv, int specific_ssid);
|
| 593 |
|
|
static void atmel_join_bss(struct atmel_private *priv, int bss_index);
|
| 594 |
|
|
static void atmel_smooth_qual(struct atmel_private *priv);
|
| 595 |
|
|
static void atmel_writeAR(struct net_device *dev, u16 data);
|
| 596 |
|
|
static int probe_atmel_card(struct net_device *dev);
|
| 597 |
|
|
static int reset_atmel_card(struct net_device *dev);
|
| 598 |
|
|
static void atmel_enter_state(struct atmel_private *priv, int new_state);
|
| 599 |
|
|
int atmel_open (struct net_device *dev);
|
| 600 |
|
|
|
| 601 |
|
|
static inline u16 atmel_hi(struct atmel_private *priv, u16 offset)
|
| 602 |
|
|
{
|
| 603 |
|
|
return priv->host_info_base + offset;
|
| 604 |
|
|
}
|
| 605 |
|
|
|
| 606 |
|
|
static inline u16 atmel_co(struct atmel_private *priv, u16 offset)
|
| 607 |
|
|
{
|
| 608 |
|
|
return priv->host_info.command_pos + offset;
|
| 609 |
|
|
}
|
| 610 |
|
|
|
| 611 |
|
|
static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc)
|
| 612 |
|
|
{
|
| 613 |
|
|
return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset;
|
| 614 |
|
|
}
|
| 615 |
|
|
|
| 616 |
|
|
static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc)
|
| 617 |
|
|
{
|
| 618 |
|
|
return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset;
|
| 619 |
|
|
}
|
| 620 |
|
|
|
| 621 |
|
|
static inline u8 atmel_read8(struct net_device *dev, u16 offset)
|
| 622 |
|
|
{
|
| 623 |
|
|
return inb(dev->base_addr + offset);
|
| 624 |
|
|
}
|
| 625 |
|
|
|
| 626 |
|
|
static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data)
|
| 627 |
|
|
{
|
| 628 |
|
|
outb(data, dev->base_addr + offset);
|
| 629 |
|
|
}
|
| 630 |
|
|
|
| 631 |
|
|
static inline u16 atmel_read16(struct net_device *dev, u16 offset)
|
| 632 |
|
|
{
|
| 633 |
|
|
return inw(dev->base_addr + offset);
|
| 634 |
|
|
}
|
| 635 |
|
|
|
| 636 |
|
|
static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data)
|
| 637 |
|
|
{
|
| 638 |
|
|
outw(data, dev->base_addr + offset);
|
| 639 |
|
|
}
|
| 640 |
|
|
|
| 641 |
|
|
static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos)
|
| 642 |
|
|
{
|
| 643 |
|
|
atmel_writeAR(priv->dev, pos);
|
| 644 |
|
|
return atmel_read8(priv->dev, DR);
|
| 645 |
|
|
}
|
| 646 |
|
|
|
| 647 |
|
|
static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data)
|
| 648 |
|
|
{
|
| 649 |
|
|
atmel_writeAR(priv->dev, pos);
|
| 650 |
|
|
atmel_write8(priv->dev, DR, data);
|
| 651 |
|
|
}
|
| 652 |
|
|
|
| 653 |
|
|
static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos)
|
| 654 |
|
|
{
|
| 655 |
|
|
atmel_writeAR(priv->dev, pos);
|
| 656 |
|
|
return atmel_read16(priv->dev, DR);
|
| 657 |
|
|
}
|
| 658 |
|
|
|
| 659 |
|
|
static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data)
|
| 660 |
|
|
{
|
| 661 |
|
|
atmel_writeAR(priv->dev, pos);
|
| 662 |
|
|
atmel_write16(priv->dev, DR, data);
|
| 663 |
|
|
}
|
| 664 |
|
|
|
| 665 |
|
|
static const struct iw_handler_def atmel_handler_def;
|
| 666 |
|
|
|
| 667 |
|
|
static void tx_done_irq(struct atmel_private *priv)
|
| 668 |
|
|
{
|
| 669 |
|
|
int i;
|
| 670 |
|
|
|
| 671 |
|
|
for (i = 0;
|
| 672 |
|
|
atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE &&
|
| 673 |
|
|
i < priv->host_info.tx_desc_count;
|
| 674 |
|
|
i++) {
|
| 675 |
|
|
u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head));
|
| 676 |
|
|
u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head));
|
| 677 |
|
|
u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head));
|
| 678 |
|
|
|
| 679 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0);
|
| 680 |
|
|
|
| 681 |
|
|
priv->tx_free_mem += msdu_size;
|
| 682 |
|
|
priv->tx_desc_free++;
|
| 683 |
|
|
|
| 684 |
|
|
if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size))
|
| 685 |
|
|
priv->tx_buff_head = 0;
|
| 686 |
|
|
else
|
| 687 |
|
|
priv->tx_buff_head += msdu_size;
|
| 688 |
|
|
|
| 689 |
|
|
if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1))
|
| 690 |
|
|
priv->tx_desc_head++ ;
|
| 691 |
|
|
else
|
| 692 |
|
|
priv->tx_desc_head = 0;
|
| 693 |
|
|
|
| 694 |
|
|
if (type == TX_PACKET_TYPE_DATA) {
|
| 695 |
|
|
if (status == TX_STATUS_SUCCESS)
|
| 696 |
|
|
priv->stats.tx_packets++;
|
| 697 |
|
|
else
|
| 698 |
|
|
priv->stats.tx_errors++;
|
| 699 |
|
|
netif_wake_queue(priv->dev);
|
| 700 |
|
|
}
|
| 701 |
|
|
}
|
| 702 |
|
|
}
|
| 703 |
|
|
|
| 704 |
|
|
static u16 find_tx_buff(struct atmel_private *priv, u16 len)
|
| 705 |
|
|
{
|
| 706 |
|
|
u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail;
|
| 707 |
|
|
|
| 708 |
|
|
if (priv->tx_desc_free == 3 || priv->tx_free_mem < len)
|
| 709 |
|
|
return 0;
|
| 710 |
|
|
|
| 711 |
|
|
if (bottom_free >= len)
|
| 712 |
|
|
return priv->host_info.tx_buff_pos + priv->tx_buff_tail;
|
| 713 |
|
|
|
| 714 |
|
|
if (priv->tx_free_mem - bottom_free >= len) {
|
| 715 |
|
|
priv->tx_buff_tail = 0;
|
| 716 |
|
|
return priv->host_info.tx_buff_pos;
|
| 717 |
|
|
}
|
| 718 |
|
|
|
| 719 |
|
|
return 0;
|
| 720 |
|
|
}
|
| 721 |
|
|
|
| 722 |
|
|
static void tx_update_descriptor(struct atmel_private *priv, int is_bcast,
|
| 723 |
|
|
u16 len, u16 buff, u8 type)
|
| 724 |
|
|
{
|
| 725 |
|
|
atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff);
|
| 726 |
|
|
atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len);
|
| 727 |
|
|
if (!priv->use_wpa)
|
| 728 |
|
|
atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len);
|
| 729 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type);
|
| 730 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate);
|
| 731 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0);
|
| 732 |
|
|
if (priv->use_wpa) {
|
| 733 |
|
|
int cipher_type, cipher_length;
|
| 734 |
|
|
if (is_bcast) {
|
| 735 |
|
|
cipher_type = priv->group_cipher_suite;
|
| 736 |
|
|
if (cipher_type == CIPHER_SUITE_WEP_64 ||
|
| 737 |
|
|
cipher_type == CIPHER_SUITE_WEP_128)
|
| 738 |
|
|
cipher_length = 8;
|
| 739 |
|
|
else if (cipher_type == CIPHER_SUITE_TKIP)
|
| 740 |
|
|
cipher_length = 12;
|
| 741 |
|
|
else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 ||
|
| 742 |
|
|
priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) {
|
| 743 |
|
|
cipher_type = priv->pairwise_cipher_suite;
|
| 744 |
|
|
cipher_length = 8;
|
| 745 |
|
|
} else {
|
| 746 |
|
|
cipher_type = CIPHER_SUITE_NONE;
|
| 747 |
|
|
cipher_length = 0;
|
| 748 |
|
|
}
|
| 749 |
|
|
} else {
|
| 750 |
|
|
cipher_type = priv->pairwise_cipher_suite;
|
| 751 |
|
|
if (cipher_type == CIPHER_SUITE_WEP_64 ||
|
| 752 |
|
|
cipher_type == CIPHER_SUITE_WEP_128)
|
| 753 |
|
|
cipher_length = 8;
|
| 754 |
|
|
else if (cipher_type == CIPHER_SUITE_TKIP)
|
| 755 |
|
|
cipher_length = 12;
|
| 756 |
|
|
else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 ||
|
| 757 |
|
|
priv->group_cipher_suite == CIPHER_SUITE_WEP_128) {
|
| 758 |
|
|
cipher_type = priv->group_cipher_suite;
|
| 759 |
|
|
cipher_length = 8;
|
| 760 |
|
|
} else {
|
| 761 |
|
|
cipher_type = CIPHER_SUITE_NONE;
|
| 762 |
|
|
cipher_length = 0;
|
| 763 |
|
|
}
|
| 764 |
|
|
}
|
| 765 |
|
|
|
| 766 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail),
|
| 767 |
|
|
cipher_type);
|
| 768 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail),
|
| 769 |
|
|
cipher_length);
|
| 770 |
|
|
}
|
| 771 |
|
|
atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L);
|
| 772 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN);
|
| 773 |
|
|
if (priv->tx_desc_previous != priv->tx_desc_tail)
|
| 774 |
|
|
atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0);
|
| 775 |
|
|
priv->tx_desc_previous = priv->tx_desc_tail;
|
| 776 |
|
|
if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1))
|
| 777 |
|
|
priv->tx_desc_tail++;
|
| 778 |
|
|
else
|
| 779 |
|
|
priv->tx_desc_tail = 0;
|
| 780 |
|
|
priv->tx_desc_free--;
|
| 781 |
|
|
priv->tx_free_mem -= len;
|
| 782 |
|
|
}
|
| 783 |
|
|
|
| 784 |
|
|
static int start_tx(struct sk_buff *skb, struct net_device *dev)
|
| 785 |
|
|
{
|
| 786 |
|
|
static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
|
| 787 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 788 |
|
|
struct ieee80211_hdr_4addr header;
|
| 789 |
|
|
unsigned long flags;
|
| 790 |
|
|
u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
|
| 791 |
|
|
|
| 792 |
|
|
if (priv->card && priv->present_callback &&
|
| 793 |
|
|
!(*priv->present_callback)(priv->card)) {
|
| 794 |
|
|
priv->stats.tx_errors++;
|
| 795 |
|
|
dev_kfree_skb(skb);
|
| 796 |
|
|
return 0;
|
| 797 |
|
|
}
|
| 798 |
|
|
|
| 799 |
|
|
if (priv->station_state != STATION_STATE_READY) {
|
| 800 |
|
|
priv->stats.tx_errors++;
|
| 801 |
|
|
dev_kfree_skb(skb);
|
| 802 |
|
|
return 0;
|
| 803 |
|
|
}
|
| 804 |
|
|
|
| 805 |
|
|
/* first ensure the timer func cannot run */
|
| 806 |
|
|
spin_lock_bh(&priv->timerlock);
|
| 807 |
|
|
/* then stop the hardware ISR */
|
| 808 |
|
|
spin_lock_irqsave(&priv->irqlock, flags);
|
| 809 |
|
|
/* nb doing the above in the opposite order will deadlock */
|
| 810 |
|
|
|
| 811 |
|
|
/* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the
|
| 812 |
|
|
12 first bytes (containing DA/SA) and put them in the appropriate
|
| 813 |
|
|
fields of the Wireless Header. Thus the packet length is then the
|
| 814 |
|
|
initial + 18 (+30-12) */
|
| 815 |
|
|
|
| 816 |
|
|
if (!(buff = find_tx_buff(priv, len + 18))) {
|
| 817 |
|
|
priv->stats.tx_dropped++;
|
| 818 |
|
|
spin_unlock_irqrestore(&priv->irqlock, flags);
|
| 819 |
|
|
spin_unlock_bh(&priv->timerlock);
|
| 820 |
|
|
netif_stop_queue(dev);
|
| 821 |
|
|
return 1;
|
| 822 |
|
|
}
|
| 823 |
|
|
|
| 824 |
|
|
frame_ctl = IEEE80211_FTYPE_DATA;
|
| 825 |
|
|
header.duration_id = 0;
|
| 826 |
|
|
header.seq_ctl = 0;
|
| 827 |
|
|
if (priv->wep_is_on)
|
| 828 |
|
|
frame_ctl |= IEEE80211_FCTL_PROTECTED;
|
| 829 |
|
|
if (priv->operating_mode == IW_MODE_ADHOC) {
|
| 830 |
|
|
skb_copy_from_linear_data(skb, &header.addr1, 6);
|
| 831 |
|
|
memcpy(&header.addr2, dev->dev_addr, 6);
|
| 832 |
|
|
memcpy(&header.addr3, priv->BSSID, 6);
|
| 833 |
|
|
} else {
|
| 834 |
|
|
frame_ctl |= IEEE80211_FCTL_TODS;
|
| 835 |
|
|
memcpy(&header.addr1, priv->CurrentBSSID, 6);
|
| 836 |
|
|
memcpy(&header.addr2, dev->dev_addr, 6);
|
| 837 |
|
|
skb_copy_from_linear_data(skb, &header.addr3, 6);
|
| 838 |
|
|
}
|
| 839 |
|
|
|
| 840 |
|
|
if (priv->use_wpa)
|
| 841 |
|
|
memcpy(&header.addr4, SNAP_RFC1024, 6);
|
| 842 |
|
|
|
| 843 |
|
|
header.frame_ctl = cpu_to_le16(frame_ctl);
|
| 844 |
|
|
/* Copy the wireless header into the card */
|
| 845 |
|
|
atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE);
|
| 846 |
|
|
/* Copy the packet sans its 802.3 header addresses which have been replaced */
|
| 847 |
|
|
atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12);
|
| 848 |
|
|
priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE;
|
| 849 |
|
|
|
| 850 |
|
|
/* low bit of first byte of destination tells us if broadcast */
|
| 851 |
|
|
tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA);
|
| 852 |
|
|
dev->trans_start = jiffies;
|
| 853 |
|
|
priv->stats.tx_bytes += len;
|
| 854 |
|
|
|
| 855 |
|
|
spin_unlock_irqrestore(&priv->irqlock, flags);
|
| 856 |
|
|
spin_unlock_bh(&priv->timerlock);
|
| 857 |
|
|
dev_kfree_skb(skb);
|
| 858 |
|
|
|
| 859 |
|
|
return 0;
|
| 860 |
|
|
}
|
| 861 |
|
|
|
| 862 |
|
|
static void atmel_transmit_management_frame(struct atmel_private *priv,
|
| 863 |
|
|
struct ieee80211_hdr_4addr *header,
|
| 864 |
|
|
u8 *body, int body_len)
|
| 865 |
|
|
{
|
| 866 |
|
|
u16 buff;
|
| 867 |
|
|
int len = MGMT_FRAME_BODY_OFFSET + body_len;
|
| 868 |
|
|
|
| 869 |
|
|
if (!(buff = find_tx_buff(priv, len)))
|
| 870 |
|
|
return;
|
| 871 |
|
|
|
| 872 |
|
|
atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET);
|
| 873 |
|
|
atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len);
|
| 874 |
|
|
priv->tx_buff_tail += len;
|
| 875 |
|
|
tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT);
|
| 876 |
|
|
}
|
| 877 |
|
|
|
| 878 |
|
|
static void fast_rx_path(struct atmel_private *priv,
|
| 879 |
|
|
struct ieee80211_hdr_4addr *header,
|
| 880 |
|
|
u16 msdu_size, u16 rx_packet_loc, u32 crc)
|
| 881 |
|
|
{
|
| 882 |
|
|
/* fast path: unfragmented packet copy directly into skbuf */
|
| 883 |
|
|
u8 mac4[6];
|
| 884 |
|
|
struct sk_buff *skb;
|
| 885 |
|
|
unsigned char *skbp;
|
| 886 |
|
|
|
| 887 |
|
|
/* get the final, mac 4 header field, this tells us encapsulation */
|
| 888 |
|
|
atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6);
|
| 889 |
|
|
msdu_size -= 6;
|
| 890 |
|
|
|
| 891 |
|
|
if (priv->do_rx_crc) {
|
| 892 |
|
|
crc = crc32_le(crc, mac4, 6);
|
| 893 |
|
|
msdu_size -= 4;
|
| 894 |
|
|
}
|
| 895 |
|
|
|
| 896 |
|
|
if (!(skb = dev_alloc_skb(msdu_size + 14))) {
|
| 897 |
|
|
priv->stats.rx_dropped++;
|
| 898 |
|
|
return;
|
| 899 |
|
|
}
|
| 900 |
|
|
|
| 901 |
|
|
skb_reserve(skb, 2);
|
| 902 |
|
|
skbp = skb_put(skb, msdu_size + 12);
|
| 903 |
|
|
atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size);
|
| 904 |
|
|
|
| 905 |
|
|
if (priv->do_rx_crc) {
|
| 906 |
|
|
u32 netcrc;
|
| 907 |
|
|
crc = crc32_le(crc, skbp + 12, msdu_size);
|
| 908 |
|
|
atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4);
|
| 909 |
|
|
if ((crc ^ 0xffffffff) != netcrc) {
|
| 910 |
|
|
priv->stats.rx_crc_errors++;
|
| 911 |
|
|
dev_kfree_skb(skb);
|
| 912 |
|
|
return;
|
| 913 |
|
|
}
|
| 914 |
|
|
}
|
| 915 |
|
|
|
| 916 |
|
|
memcpy(skbp, header->addr1, 6); /* destination address */
|
| 917 |
|
|
if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS)
|
| 918 |
|
|
memcpy(&skbp[6], header->addr3, 6);
|
| 919 |
|
|
else
|
| 920 |
|
|
memcpy(&skbp[6], header->addr2, 6); /* source address */
|
| 921 |
|
|
|
| 922 |
|
|
priv->dev->last_rx = jiffies;
|
| 923 |
|
|
skb->protocol = eth_type_trans(skb, priv->dev);
|
| 924 |
|
|
skb->ip_summed = CHECKSUM_NONE;
|
| 925 |
|
|
netif_rx(skb);
|
| 926 |
|
|
priv->stats.rx_bytes += 12 + msdu_size;
|
| 927 |
|
|
priv->stats.rx_packets++;
|
| 928 |
|
|
}
|
| 929 |
|
|
|
| 930 |
|
|
/* Test to see if the packet in card memory at packet_loc has a valid CRC
|
| 931 |
|
|
It doesn't matter that this is slow: it is only used to proble the first few
|
| 932 |
|
|
packets. */
|
| 933 |
|
|
static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size)
|
| 934 |
|
|
{
|
| 935 |
|
|
int i = msdu_size - 4;
|
| 936 |
|
|
u32 netcrc, crc = 0xffffffff;
|
| 937 |
|
|
|
| 938 |
|
|
if (msdu_size < 4)
|
| 939 |
|
|
return 0;
|
| 940 |
|
|
|
| 941 |
|
|
atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4);
|
| 942 |
|
|
|
| 943 |
|
|
atmel_writeAR(priv->dev, packet_loc);
|
| 944 |
|
|
while (i--) {
|
| 945 |
|
|
u8 octet = atmel_read8(priv->dev, DR);
|
| 946 |
|
|
crc = crc32_le(crc, &octet, 1);
|
| 947 |
|
|
}
|
| 948 |
|
|
|
| 949 |
|
|
return (crc ^ 0xffffffff) == netcrc;
|
| 950 |
|
|
}
|
| 951 |
|
|
|
| 952 |
|
|
static void frag_rx_path(struct atmel_private *priv,
|
| 953 |
|
|
struct ieee80211_hdr_4addr *header,
|
| 954 |
|
|
u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no,
|
| 955 |
|
|
u8 frag_no, int more_frags)
|
| 956 |
|
|
{
|
| 957 |
|
|
u8 mac4[6];
|
| 958 |
|
|
u8 source[6];
|
| 959 |
|
|
struct sk_buff *skb;
|
| 960 |
|
|
|
| 961 |
|
|
if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS)
|
| 962 |
|
|
memcpy(source, header->addr3, 6);
|
| 963 |
|
|
else
|
| 964 |
|
|
memcpy(source, header->addr2, 6);
|
| 965 |
|
|
|
| 966 |
|
|
rx_packet_loc += 24; /* skip header */
|
| 967 |
|
|
|
| 968 |
|
|
if (priv->do_rx_crc)
|
| 969 |
|
|
msdu_size -= 4;
|
| 970 |
|
|
|
| 971 |
|
|
if (frag_no == 0) { /* first fragment */
|
| 972 |
|
|
atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6);
|
| 973 |
|
|
msdu_size -= 6;
|
| 974 |
|
|
rx_packet_loc += 6;
|
| 975 |
|
|
|
| 976 |
|
|
if (priv->do_rx_crc)
|
| 977 |
|
|
crc = crc32_le(crc, mac4, 6);
|
| 978 |
|
|
|
| 979 |
|
|
priv->frag_seq = seq_no;
|
| 980 |
|
|
priv->frag_no = 1;
|
| 981 |
|
|
priv->frag_len = msdu_size;
|
| 982 |
|
|
memcpy(priv->frag_source, source, 6);
|
| 983 |
|
|
memcpy(&priv->rx_buf[6], source, 6);
|
| 984 |
|
|
memcpy(priv->rx_buf, header->addr1, 6);
|
| 985 |
|
|
|
| 986 |
|
|
atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size);
|
| 987 |
|
|
|
| 988 |
|
|
if (priv->do_rx_crc) {
|
| 989 |
|
|
u32 netcrc;
|
| 990 |
|
|
crc = crc32_le(crc, &priv->rx_buf[12], msdu_size);
|
| 991 |
|
|
atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
|
| 992 |
|
|
if ((crc ^ 0xffffffff) != netcrc) {
|
| 993 |
|
|
priv->stats.rx_crc_errors++;
|
| 994 |
|
|
memset(priv->frag_source, 0xff, 6);
|
| 995 |
|
|
}
|
| 996 |
|
|
}
|
| 997 |
|
|
|
| 998 |
|
|
} else if (priv->frag_no == frag_no &&
|
| 999 |
|
|
priv->frag_seq == seq_no &&
|
| 1000 |
|
|
memcmp(priv->frag_source, source, 6) == 0) {
|
| 1001 |
|
|
|
| 1002 |
|
|
atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len],
|
| 1003 |
|
|
rx_packet_loc, msdu_size);
|
| 1004 |
|
|
if (priv->do_rx_crc) {
|
| 1005 |
|
|
u32 netcrc;
|
| 1006 |
|
|
crc = crc32_le(crc,
|
| 1007 |
|
|
&priv->rx_buf[12 + priv->frag_len],
|
| 1008 |
|
|
msdu_size);
|
| 1009 |
|
|
atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
|
| 1010 |
|
|
if ((crc ^ 0xffffffff) != netcrc) {
|
| 1011 |
|
|
priv->stats.rx_crc_errors++;
|
| 1012 |
|
|
memset(priv->frag_source, 0xff, 6);
|
| 1013 |
|
|
more_frags = 1; /* don't send broken assembly */
|
| 1014 |
|
|
}
|
| 1015 |
|
|
}
|
| 1016 |
|
|
|
| 1017 |
|
|
priv->frag_len += msdu_size;
|
| 1018 |
|
|
priv->frag_no++;
|
| 1019 |
|
|
|
| 1020 |
|
|
if (!more_frags) { /* last one */
|
| 1021 |
|
|
memset(priv->frag_source, 0xff, 6);
|
| 1022 |
|
|
if (!(skb = dev_alloc_skb(priv->frag_len + 14))) {
|
| 1023 |
|
|
priv->stats.rx_dropped++;
|
| 1024 |
|
|
} else {
|
| 1025 |
|
|
skb_reserve(skb, 2);
|
| 1026 |
|
|
memcpy(skb_put(skb, priv->frag_len + 12),
|
| 1027 |
|
|
priv->rx_buf,
|
| 1028 |
|
|
priv->frag_len + 12);
|
| 1029 |
|
|
priv->dev->last_rx = jiffies;
|
| 1030 |
|
|
skb->protocol = eth_type_trans(skb, priv->dev);
|
| 1031 |
|
|
skb->ip_summed = CHECKSUM_NONE;
|
| 1032 |
|
|
netif_rx(skb);
|
| 1033 |
|
|
priv->stats.rx_bytes += priv->frag_len + 12;
|
| 1034 |
|
|
priv->stats.rx_packets++;
|
| 1035 |
|
|
}
|
| 1036 |
|
|
}
|
| 1037 |
|
|
} else
|
| 1038 |
|
|
priv->wstats.discard.fragment++;
|
| 1039 |
|
|
}
|
| 1040 |
|
|
|
| 1041 |
|
|
static void rx_done_irq(struct atmel_private *priv)
|
| 1042 |
|
|
{
|
| 1043 |
|
|
int i;
|
| 1044 |
|
|
struct ieee80211_hdr_4addr header;
|
| 1045 |
|
|
|
| 1046 |
|
|
for (i = 0;
|
| 1047 |
|
|
atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID &&
|
| 1048 |
|
|
i < priv->host_info.rx_desc_count;
|
| 1049 |
|
|
i++) {
|
| 1050 |
|
|
|
| 1051 |
|
|
u16 msdu_size, rx_packet_loc, frame_ctl, seq_control;
|
| 1052 |
|
|
u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head));
|
| 1053 |
|
|
u32 crc = 0xffffffff;
|
| 1054 |
|
|
|
| 1055 |
|
|
if (status != RX_STATUS_SUCCESS) {
|
| 1056 |
|
|
if (status == 0xc1) /* determined by experiment */
|
| 1057 |
|
|
priv->wstats.discard.nwid++;
|
| 1058 |
|
|
else
|
| 1059 |
|
|
priv->stats.rx_errors++;
|
| 1060 |
|
|
goto next;
|
| 1061 |
|
|
}
|
| 1062 |
|
|
|
| 1063 |
|
|
msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head));
|
| 1064 |
|
|
rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head));
|
| 1065 |
|
|
|
| 1066 |
|
|
if (msdu_size < 30) {
|
| 1067 |
|
|
priv->stats.rx_errors++;
|
| 1068 |
|
|
goto next;
|
| 1069 |
|
|
}
|
| 1070 |
|
|
|
| 1071 |
|
|
/* Get header as far as end of seq_ctl */
|
| 1072 |
|
|
atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24);
|
| 1073 |
|
|
frame_ctl = le16_to_cpu(header.frame_ctl);
|
| 1074 |
|
|
seq_control = le16_to_cpu(header.seq_ctl);
|
| 1075 |
|
|
|
| 1076 |
|
|
/* probe for CRC use here if needed once five packets have
|
| 1077 |
|
|
arrived with the same crc status, we assume we know what's
|
| 1078 |
|
|
happening and stop probing */
|
| 1079 |
|
|
if (priv->probe_crc) {
|
| 1080 |
|
|
if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) {
|
| 1081 |
|
|
priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size);
|
| 1082 |
|
|
} else {
|
| 1083 |
|
|
priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24);
|
| 1084 |
|
|
}
|
| 1085 |
|
|
if (priv->do_rx_crc) {
|
| 1086 |
|
|
if (priv->crc_ok_cnt++ > 5)
|
| 1087 |
|
|
priv->probe_crc = 0;
|
| 1088 |
|
|
} else {
|
| 1089 |
|
|
if (priv->crc_ko_cnt++ > 5)
|
| 1090 |
|
|
priv->probe_crc = 0;
|
| 1091 |
|
|
}
|
| 1092 |
|
|
}
|
| 1093 |
|
|
|
| 1094 |
|
|
/* don't CRC header when WEP in use */
|
| 1095 |
|
|
if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) {
|
| 1096 |
|
|
crc = crc32_le(0xffffffff, (unsigned char *)&header, 24);
|
| 1097 |
|
|
}
|
| 1098 |
|
|
msdu_size -= 24; /* header */
|
| 1099 |
|
|
|
| 1100 |
|
|
if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
|
| 1101 |
|
|
int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS;
|
| 1102 |
|
|
u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG;
|
| 1103 |
|
|
u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4;
|
| 1104 |
|
|
|
| 1105 |
|
|
if (!more_fragments && packet_fragment_no == 0) {
|
| 1106 |
|
|
fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc);
|
| 1107 |
|
|
} else {
|
| 1108 |
|
|
frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc,
|
| 1109 |
|
|
packet_sequence_no, packet_fragment_no, more_fragments);
|
| 1110 |
|
|
}
|
| 1111 |
|
|
}
|
| 1112 |
|
|
|
| 1113 |
|
|
if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
|
| 1114 |
|
|
/* copy rest of packet into buffer */
|
| 1115 |
|
|
atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size);
|
| 1116 |
|
|
|
| 1117 |
|
|
/* we use the same buffer for frag reassembly and control packets */
|
| 1118 |
|
|
memset(priv->frag_source, 0xff, 6);
|
| 1119 |
|
|
|
| 1120 |
|
|
if (priv->do_rx_crc) {
|
| 1121 |
|
|
/* last 4 octets is crc */
|
| 1122 |
|
|
msdu_size -= 4;
|
| 1123 |
|
|
crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size);
|
| 1124 |
|
|
if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) {
|
| 1125 |
|
|
priv->stats.rx_crc_errors++;
|
| 1126 |
|
|
goto next;
|
| 1127 |
|
|
}
|
| 1128 |
|
|
}
|
| 1129 |
|
|
|
| 1130 |
|
|
atmel_management_frame(priv, &header, msdu_size,
|
| 1131 |
|
|
atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head)));
|
| 1132 |
|
|
}
|
| 1133 |
|
|
|
| 1134 |
|
|
next:
|
| 1135 |
|
|
/* release descriptor */
|
| 1136 |
|
|
atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED);
|
| 1137 |
|
|
|
| 1138 |
|
|
if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1))
|
| 1139 |
|
|
priv->rx_desc_head++;
|
| 1140 |
|
|
else
|
| 1141 |
|
|
priv->rx_desc_head = 0;
|
| 1142 |
|
|
}
|
| 1143 |
|
|
}
|
| 1144 |
|
|
|
| 1145 |
|
|
static irqreturn_t service_interrupt(int irq, void *dev_id)
|
| 1146 |
|
|
{
|
| 1147 |
|
|
struct net_device *dev = (struct net_device *) dev_id;
|
| 1148 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1149 |
|
|
u8 isr;
|
| 1150 |
|
|
int i = -1;
|
| 1151 |
|
|
static u8 irq_order[] = {
|
| 1152 |
|
|
ISR_OUT_OF_RANGE,
|
| 1153 |
|
|
ISR_RxCOMPLETE,
|
| 1154 |
|
|
ISR_TxCOMPLETE,
|
| 1155 |
|
|
ISR_RxFRAMELOST,
|
| 1156 |
|
|
ISR_FATAL_ERROR,
|
| 1157 |
|
|
ISR_COMMAND_COMPLETE,
|
| 1158 |
|
|
ISR_IBSS_MERGE,
|
| 1159 |
|
|
ISR_GENERIC_IRQ
|
| 1160 |
|
|
};
|
| 1161 |
|
|
|
| 1162 |
|
|
if (priv->card && priv->present_callback &&
|
| 1163 |
|
|
!(*priv->present_callback)(priv->card))
|
| 1164 |
|
|
return IRQ_HANDLED;
|
| 1165 |
|
|
|
| 1166 |
|
|
/* In this state upper-level code assumes it can mess with
|
| 1167 |
|
|
the card unhampered by interrupts which may change register state.
|
| 1168 |
|
|
Note that even though the card shouldn't generate interrupts
|
| 1169 |
|
|
the inturrupt line may be shared. This allows card setup
|
| 1170 |
|
|
to go on without disabling interrupts for a long time. */
|
| 1171 |
|
|
if (priv->station_state == STATION_STATE_DOWN)
|
| 1172 |
|
|
return IRQ_NONE;
|
| 1173 |
|
|
|
| 1174 |
|
|
atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */
|
| 1175 |
|
|
|
| 1176 |
|
|
while (1) {
|
| 1177 |
|
|
if (!atmel_lock_mac(priv)) {
|
| 1178 |
|
|
/* failed to contact card */
|
| 1179 |
|
|
printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
|
| 1180 |
|
|
return IRQ_HANDLED;
|
| 1181 |
|
|
}
|
| 1182 |
|
|
|
| 1183 |
|
|
isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
|
| 1184 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
|
| 1185 |
|
|
|
| 1186 |
|
|
if (!isr) {
|
| 1187 |
|
|
atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */
|
| 1188 |
|
|
return i == -1 ? IRQ_NONE : IRQ_HANDLED;
|
| 1189 |
|
|
}
|
| 1190 |
|
|
|
| 1191 |
|
|
atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */
|
| 1192 |
|
|
|
| 1193 |
|
|
for (i = 0; i < ARRAY_SIZE(irq_order); i++)
|
| 1194 |
|
|
if (isr & irq_order[i])
|
| 1195 |
|
|
break;
|
| 1196 |
|
|
|
| 1197 |
|
|
if (!atmel_lock_mac(priv)) {
|
| 1198 |
|
|
/* failed to contact card */
|
| 1199 |
|
|
printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
|
| 1200 |
|
|
return IRQ_HANDLED;
|
| 1201 |
|
|
}
|
| 1202 |
|
|
|
| 1203 |
|
|
isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
|
| 1204 |
|
|
isr ^= irq_order[i];
|
| 1205 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr);
|
| 1206 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
|
| 1207 |
|
|
|
| 1208 |
|
|
switch (irq_order[i]) {
|
| 1209 |
|
|
|
| 1210 |
|
|
case ISR_OUT_OF_RANGE:
|
| 1211 |
|
|
if (priv->operating_mode == IW_MODE_INFRA &&
|
| 1212 |
|
|
priv->station_state == STATION_STATE_READY) {
|
| 1213 |
|
|
priv->station_is_associated = 0;
|
| 1214 |
|
|
atmel_scan(priv, 1);
|
| 1215 |
|
|
}
|
| 1216 |
|
|
break;
|
| 1217 |
|
|
|
| 1218 |
|
|
case ISR_RxFRAMELOST:
|
| 1219 |
|
|
priv->wstats.discard.misc++;
|
| 1220 |
|
|
/* fall through */
|
| 1221 |
|
|
case ISR_RxCOMPLETE:
|
| 1222 |
|
|
rx_done_irq(priv);
|
| 1223 |
|
|
break;
|
| 1224 |
|
|
|
| 1225 |
|
|
case ISR_TxCOMPLETE:
|
| 1226 |
|
|
tx_done_irq(priv);
|
| 1227 |
|
|
break;
|
| 1228 |
|
|
|
| 1229 |
|
|
case ISR_FATAL_ERROR:
|
| 1230 |
|
|
printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name);
|
| 1231 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 1232 |
|
|
break;
|
| 1233 |
|
|
|
| 1234 |
|
|
case ISR_COMMAND_COMPLETE:
|
| 1235 |
|
|
atmel_command_irq(priv);
|
| 1236 |
|
|
break;
|
| 1237 |
|
|
|
| 1238 |
|
|
case ISR_IBSS_MERGE:
|
| 1239 |
|
|
atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
|
| 1240 |
|
|
priv->CurrentBSSID, 6);
|
| 1241 |
|
|
/* The WPA stuff cares about the current AP address */
|
| 1242 |
|
|
if (priv->use_wpa)
|
| 1243 |
|
|
build_wpa_mib(priv);
|
| 1244 |
|
|
break;
|
| 1245 |
|
|
case ISR_GENERIC_IRQ:
|
| 1246 |
|
|
printk(KERN_INFO "%s: Generic_irq received.\n", dev->name);
|
| 1247 |
|
|
break;
|
| 1248 |
|
|
}
|
| 1249 |
|
|
}
|
| 1250 |
|
|
}
|
| 1251 |
|
|
|
| 1252 |
|
|
static struct net_device_stats *atmel_get_stats(struct net_device *dev)
|
| 1253 |
|
|
{
|
| 1254 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1255 |
|
|
return &priv->stats;
|
| 1256 |
|
|
}
|
| 1257 |
|
|
|
| 1258 |
|
|
static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev)
|
| 1259 |
|
|
{
|
| 1260 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1261 |
|
|
|
| 1262 |
|
|
/* update the link quality here in case we are seeing no beacons
|
| 1263 |
|
|
at all to drive the process */
|
| 1264 |
|
|
atmel_smooth_qual(priv);
|
| 1265 |
|
|
|
| 1266 |
|
|
priv->wstats.status = priv->station_state;
|
| 1267 |
|
|
|
| 1268 |
|
|
if (priv->operating_mode == IW_MODE_INFRA) {
|
| 1269 |
|
|
if (priv->station_state != STATION_STATE_READY) {
|
| 1270 |
|
|
priv->wstats.qual.qual = 0;
|
| 1271 |
|
|
priv->wstats.qual.level = 0;
|
| 1272 |
|
|
priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID
|
| 1273 |
|
|
| IW_QUAL_LEVEL_INVALID);
|
| 1274 |
|
|
}
|
| 1275 |
|
|
priv->wstats.qual.noise = 0;
|
| 1276 |
|
|
priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
|
| 1277 |
|
|
} else {
|
| 1278 |
|
|
/* Quality levels cannot be determined in ad-hoc mode,
|
| 1279 |
|
|
because we can 'hear' more that one remote station. */
|
| 1280 |
|
|
priv->wstats.qual.qual = 0;
|
| 1281 |
|
|
priv->wstats.qual.level = 0;
|
| 1282 |
|
|
priv->wstats.qual.noise = 0;
|
| 1283 |
|
|
priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID
|
| 1284 |
|
|
| IW_QUAL_LEVEL_INVALID
|
| 1285 |
|
|
| IW_QUAL_NOISE_INVALID;
|
| 1286 |
|
|
priv->wstats.miss.beacon = 0;
|
| 1287 |
|
|
}
|
| 1288 |
|
|
|
| 1289 |
|
|
return &priv->wstats;
|
| 1290 |
|
|
}
|
| 1291 |
|
|
|
| 1292 |
|
|
static int atmel_change_mtu(struct net_device *dev, int new_mtu)
|
| 1293 |
|
|
{
|
| 1294 |
|
|
if ((new_mtu < 68) || (new_mtu > 2312))
|
| 1295 |
|
|
return -EINVAL;
|
| 1296 |
|
|
dev->mtu = new_mtu;
|
| 1297 |
|
|
return 0;
|
| 1298 |
|
|
}
|
| 1299 |
|
|
|
| 1300 |
|
|
static int atmel_set_mac_address(struct net_device *dev, void *p)
|
| 1301 |
|
|
{
|
| 1302 |
|
|
struct sockaddr *addr = p;
|
| 1303 |
|
|
|
| 1304 |
|
|
memcpy (dev->dev_addr, addr->sa_data, dev->addr_len);
|
| 1305 |
|
|
return atmel_open(dev);
|
| 1306 |
|
|
}
|
| 1307 |
|
|
|
| 1308 |
|
|
EXPORT_SYMBOL(atmel_open);
|
| 1309 |
|
|
|
| 1310 |
|
|
int atmel_open(struct net_device *dev)
|
| 1311 |
|
|
{
|
| 1312 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1313 |
|
|
int i, channel;
|
| 1314 |
|
|
|
| 1315 |
|
|
/* any scheduled timer is no longer needed and might screw things up.. */
|
| 1316 |
|
|
del_timer_sync(&priv->management_timer);
|
| 1317 |
|
|
|
| 1318 |
|
|
/* Interrupts will not touch the card once in this state... */
|
| 1319 |
|
|
priv->station_state = STATION_STATE_DOWN;
|
| 1320 |
|
|
|
| 1321 |
|
|
if (priv->new_SSID_size) {
|
| 1322 |
|
|
memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size);
|
| 1323 |
|
|
priv->SSID_size = priv->new_SSID_size;
|
| 1324 |
|
|
priv->new_SSID_size = 0;
|
| 1325 |
|
|
}
|
| 1326 |
|
|
priv->BSS_list_entries = 0;
|
| 1327 |
|
|
|
| 1328 |
|
|
priv->AuthenticationRequestRetryCnt = 0;
|
| 1329 |
|
|
priv->AssociationRequestRetryCnt = 0;
|
| 1330 |
|
|
priv->ReAssociationRequestRetryCnt = 0;
|
| 1331 |
|
|
priv->CurrentAuthentTransactionSeqNum = 0x0001;
|
| 1332 |
|
|
priv->ExpectedAuthentTransactionSeqNum = 0x0002;
|
| 1333 |
|
|
|
| 1334 |
|
|
priv->site_survey_state = SITE_SURVEY_IDLE;
|
| 1335 |
|
|
priv->station_is_associated = 0;
|
| 1336 |
|
|
|
| 1337 |
|
|
if (!reset_atmel_card(dev))
|
| 1338 |
|
|
return -EAGAIN;
|
| 1339 |
|
|
|
| 1340 |
|
|
if (priv->config_reg_domain) {
|
| 1341 |
|
|
priv->reg_domain = priv->config_reg_domain;
|
| 1342 |
|
|
atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain);
|
| 1343 |
|
|
} else {
|
| 1344 |
|
|
priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS);
|
| 1345 |
|
|
for (i = 0; i < ARRAY_SIZE(channel_table); i++)
|
| 1346 |
|
|
if (priv->reg_domain == channel_table[i].reg_domain)
|
| 1347 |
|
|
break;
|
| 1348 |
|
|
if (i == ARRAY_SIZE(channel_table)) {
|
| 1349 |
|
|
priv->reg_domain = REG_DOMAIN_MKK1;
|
| 1350 |
|
|
printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name);
|
| 1351 |
|
|
}
|
| 1352 |
|
|
}
|
| 1353 |
|
|
|
| 1354 |
|
|
if ((channel = atmel_validate_channel(priv, priv->channel)))
|
| 1355 |
|
|
priv->channel = channel;
|
| 1356 |
|
|
|
| 1357 |
|
|
/* this moves station_state on.... */
|
| 1358 |
|
|
atmel_scan(priv, 1);
|
| 1359 |
|
|
|
| 1360 |
|
|
atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */
|
| 1361 |
|
|
return 0;
|
| 1362 |
|
|
}
|
| 1363 |
|
|
|
| 1364 |
|
|
static int atmel_close(struct net_device *dev)
|
| 1365 |
|
|
{
|
| 1366 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1367 |
|
|
|
| 1368 |
|
|
/* Send event to userspace that we are disassociating */
|
| 1369 |
|
|
if (priv->station_state == STATION_STATE_READY) {
|
| 1370 |
|
|
union iwreq_data wrqu;
|
| 1371 |
|
|
|
| 1372 |
|
|
wrqu.data.length = 0;
|
| 1373 |
|
|
wrqu.data.flags = 0;
|
| 1374 |
|
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
|
| 1375 |
|
|
memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
|
| 1376 |
|
|
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
|
| 1377 |
|
|
}
|
| 1378 |
|
|
|
| 1379 |
|
|
atmel_enter_state(priv, STATION_STATE_DOWN);
|
| 1380 |
|
|
|
| 1381 |
|
|
if (priv->bus_type == BUS_TYPE_PCCARD)
|
| 1382 |
|
|
atmel_write16(dev, GCR, 0x0060);
|
| 1383 |
|
|
atmel_write16(dev, GCR, 0x0040);
|
| 1384 |
|
|
return 0;
|
| 1385 |
|
|
}
|
| 1386 |
|
|
|
| 1387 |
|
|
static int atmel_validate_channel(struct atmel_private *priv, int channel)
|
| 1388 |
|
|
{
|
| 1389 |
|
|
/* check that channel is OK, if so return zero,
|
| 1390 |
|
|
else return suitable default channel */
|
| 1391 |
|
|
int i;
|
| 1392 |
|
|
|
| 1393 |
|
|
for (i = 0; i < ARRAY_SIZE(channel_table); i++)
|
| 1394 |
|
|
if (priv->reg_domain == channel_table[i].reg_domain) {
|
| 1395 |
|
|
if (channel >= channel_table[i].min &&
|
| 1396 |
|
|
channel <= channel_table[i].max)
|
| 1397 |
|
|
return 0;
|
| 1398 |
|
|
else
|
| 1399 |
|
|
return channel_table[i].min;
|
| 1400 |
|
|
}
|
| 1401 |
|
|
return 0;
|
| 1402 |
|
|
}
|
| 1403 |
|
|
|
| 1404 |
|
|
static int atmel_proc_output (char *buf, struct atmel_private *priv)
|
| 1405 |
|
|
{
|
| 1406 |
|
|
int i;
|
| 1407 |
|
|
char *p = buf;
|
| 1408 |
|
|
char *s, *r, *c;
|
| 1409 |
|
|
|
| 1410 |
|
|
p += sprintf(p, "Driver version:\t\t%d.%d\n",
|
| 1411 |
|
|
DRIVER_MAJOR, DRIVER_MINOR);
|
| 1412 |
|
|
|
| 1413 |
|
|
if (priv->station_state != STATION_STATE_DOWN) {
|
| 1414 |
|
|
p += sprintf(p, "Firmware version:\t%d.%d build %d\n"
|
| 1415 |
|
|
"Firmware location:\t",
|
| 1416 |
|
|
priv->host_info.major_version,
|
| 1417 |
|
|
priv->host_info.minor_version,
|
| 1418 |
|
|
priv->host_info.build_version);
|
| 1419 |
|
|
|
| 1420 |
|
|
if (priv->card_type != CARD_TYPE_EEPROM)
|
| 1421 |
|
|
p += sprintf(p, "on card\n");
|
| 1422 |
|
|
else if (priv->firmware)
|
| 1423 |
|
|
p += sprintf(p, "%s loaded by host\n",
|
| 1424 |
|
|
priv->firmware_id);
|
| 1425 |
|
|
else
|
| 1426 |
|
|
p += sprintf(p, "%s loaded by hotplug\n",
|
| 1427 |
|
|
priv->firmware_id);
|
| 1428 |
|
|
|
| 1429 |
|
|
switch (priv->card_type) {
|
| 1430 |
|
|
case CARD_TYPE_PARALLEL_FLASH: c = "Parallel flash"; break;
|
| 1431 |
|
|
case CARD_TYPE_SPI_FLASH: c = "SPI flash\n"; break;
|
| 1432 |
|
|
case CARD_TYPE_EEPROM: c = "EEPROM"; break;
|
| 1433 |
|
|
default: c = "<unknown>";
|
| 1434 |
|
|
}
|
| 1435 |
|
|
|
| 1436 |
|
|
r = "<unknown>";
|
| 1437 |
|
|
for (i = 0; i < ARRAY_SIZE(channel_table); i++)
|
| 1438 |
|
|
if (priv->reg_domain == channel_table[i].reg_domain)
|
| 1439 |
|
|
r = channel_table[i].name;
|
| 1440 |
|
|
|
| 1441 |
|
|
p += sprintf(p, "MAC memory type:\t%s\n", c);
|
| 1442 |
|
|
p += sprintf(p, "Regulatory domain:\t%s\n", r);
|
| 1443 |
|
|
p += sprintf(p, "Host CRC checking:\t%s\n",
|
| 1444 |
|
|
priv->do_rx_crc ? "On" : "Off");
|
| 1445 |
|
|
p += sprintf(p, "WPA-capable firmware:\t%s\n",
|
| 1446 |
|
|
priv->use_wpa ? "Yes" : "No");
|
| 1447 |
|
|
}
|
| 1448 |
|
|
|
| 1449 |
|
|
switch(priv->station_state) {
|
| 1450 |
|
|
case STATION_STATE_SCANNING: s = "Scanning"; break;
|
| 1451 |
|
|
case STATION_STATE_JOINNING: s = "Joining"; break;
|
| 1452 |
|
|
case STATION_STATE_AUTHENTICATING: s = "Authenticating"; break;
|
| 1453 |
|
|
case STATION_STATE_ASSOCIATING: s = "Associating"; break;
|
| 1454 |
|
|
case STATION_STATE_READY: s = "Ready"; break;
|
| 1455 |
|
|
case STATION_STATE_REASSOCIATING: s = "Reassociating"; break;
|
| 1456 |
|
|
case STATION_STATE_MGMT_ERROR: s = "Management error"; break;
|
| 1457 |
|
|
case STATION_STATE_DOWN: s = "Down"; break;
|
| 1458 |
|
|
default: s = "<unknown>";
|
| 1459 |
|
|
}
|
| 1460 |
|
|
|
| 1461 |
|
|
p += sprintf(p, "Current state:\t\t%s\n", s);
|
| 1462 |
|
|
return p - buf;
|
| 1463 |
|
|
}
|
| 1464 |
|
|
|
| 1465 |
|
|
static int atmel_read_proc(char *page, char **start, off_t off,
|
| 1466 |
|
|
int count, int *eof, void *data)
|
| 1467 |
|
|
{
|
| 1468 |
|
|
struct atmel_private *priv = data;
|
| 1469 |
|
|
int len = atmel_proc_output (page, priv);
|
| 1470 |
|
|
if (len <= off+count) *eof = 1;
|
| 1471 |
|
|
*start = page + off;
|
| 1472 |
|
|
len -= off;
|
| 1473 |
|
|
if (len>count) len = count;
|
| 1474 |
|
|
if (len<0) len = 0;
|
| 1475 |
|
|
return len;
|
| 1476 |
|
|
}
|
| 1477 |
|
|
|
| 1478 |
|
|
struct net_device *init_atmel_card(unsigned short irq, unsigned long port,
|
| 1479 |
|
|
const AtmelFWType fw_type,
|
| 1480 |
|
|
struct device *sys_dev,
|
| 1481 |
|
|
int (*card_present)(void *), void *card)
|
| 1482 |
|
|
{
|
| 1483 |
|
|
struct proc_dir_entry *ent;
|
| 1484 |
|
|
struct net_device *dev;
|
| 1485 |
|
|
struct atmel_private *priv;
|
| 1486 |
|
|
int rc;
|
| 1487 |
|
|
DECLARE_MAC_BUF(mac);
|
| 1488 |
|
|
|
| 1489 |
|
|
/* Create the network device object. */
|
| 1490 |
|
|
dev = alloc_etherdev(sizeof(*priv));
|
| 1491 |
|
|
if (!dev) {
|
| 1492 |
|
|
printk(KERN_ERR "atmel: Couldn't alloc_etherdev\n");
|
| 1493 |
|
|
return NULL;
|
| 1494 |
|
|
}
|
| 1495 |
|
|
if (dev_alloc_name(dev, dev->name) < 0) {
|
| 1496 |
|
|
printk(KERN_ERR "atmel: Couldn't get name!\n");
|
| 1497 |
|
|
goto err_out_free;
|
| 1498 |
|
|
}
|
| 1499 |
|
|
|
| 1500 |
|
|
priv = netdev_priv(dev);
|
| 1501 |
|
|
priv->dev = dev;
|
| 1502 |
|
|
priv->sys_dev = sys_dev;
|
| 1503 |
|
|
priv->present_callback = card_present;
|
| 1504 |
|
|
priv->card = card;
|
| 1505 |
|
|
priv->firmware = NULL;
|
| 1506 |
|
|
priv->firmware_id[0] = '\0';
|
| 1507 |
|
|
priv->firmware_type = fw_type;
|
| 1508 |
|
|
if (firmware) /* module parameter */
|
| 1509 |
|
|
strcpy(priv->firmware_id, firmware);
|
| 1510 |
|
|
priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI;
|
| 1511 |
|
|
priv->station_state = STATION_STATE_DOWN;
|
| 1512 |
|
|
priv->do_rx_crc = 0;
|
| 1513 |
|
|
/* For PCMCIA cards, some chips need CRC, some don't
|
| 1514 |
|
|
so we have to probe. */
|
| 1515 |
|
|
if (priv->bus_type == BUS_TYPE_PCCARD) {
|
| 1516 |
|
|
priv->probe_crc = 1;
|
| 1517 |
|
|
priv->crc_ok_cnt = priv->crc_ko_cnt = 0;
|
| 1518 |
|
|
} else
|
| 1519 |
|
|
priv->probe_crc = 0;
|
| 1520 |
|
|
memset(&priv->stats, 0, sizeof(priv->stats));
|
| 1521 |
|
|
memset(&priv->wstats, 0, sizeof(priv->wstats));
|
| 1522 |
|
|
priv->last_qual = jiffies;
|
| 1523 |
|
|
priv->last_beacon_timestamp = 0;
|
| 1524 |
|
|
memset(priv->frag_source, 0xff, sizeof(priv->frag_source));
|
| 1525 |
|
|
memset(priv->BSSID, 0, 6);
|
| 1526 |
|
|
priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */
|
| 1527 |
|
|
priv->station_was_associated = 0;
|
| 1528 |
|
|
|
| 1529 |
|
|
priv->last_survey = jiffies;
|
| 1530 |
|
|
priv->preamble = LONG_PREAMBLE;
|
| 1531 |
|
|
priv->operating_mode = IW_MODE_INFRA;
|
| 1532 |
|
|
priv->connect_to_any_BSS = 0;
|
| 1533 |
|
|
priv->config_reg_domain = 0;
|
| 1534 |
|
|
priv->reg_domain = 0;
|
| 1535 |
|
|
priv->tx_rate = 3;
|
| 1536 |
|
|
priv->auto_tx_rate = 1;
|
| 1537 |
|
|
priv->channel = 4;
|
| 1538 |
|
|
priv->power_mode = 0;
|
| 1539 |
|
|
priv->SSID[0] = '\0';
|
| 1540 |
|
|
priv->SSID_size = 0;
|
| 1541 |
|
|
priv->new_SSID_size = 0;
|
| 1542 |
|
|
priv->frag_threshold = 2346;
|
| 1543 |
|
|
priv->rts_threshold = 2347;
|
| 1544 |
|
|
priv->short_retry = 7;
|
| 1545 |
|
|
priv->long_retry = 4;
|
| 1546 |
|
|
|
| 1547 |
|
|
priv->wep_is_on = 0;
|
| 1548 |
|
|
priv->default_key = 0;
|
| 1549 |
|
|
priv->encryption_level = 0;
|
| 1550 |
|
|
priv->exclude_unencrypted = 0;
|
| 1551 |
|
|
priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
|
| 1552 |
|
|
priv->use_wpa = 0;
|
| 1553 |
|
|
memset(priv->wep_keys, 0, sizeof(priv->wep_keys));
|
| 1554 |
|
|
memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
|
| 1555 |
|
|
|
| 1556 |
|
|
priv->default_beacon_period = priv->beacon_period = 100;
|
| 1557 |
|
|
priv->listen_interval = 1;
|
| 1558 |
|
|
|
| 1559 |
|
|
init_timer(&priv->management_timer);
|
| 1560 |
|
|
spin_lock_init(&priv->irqlock);
|
| 1561 |
|
|
spin_lock_init(&priv->timerlock);
|
| 1562 |
|
|
priv->management_timer.function = atmel_management_timer;
|
| 1563 |
|
|
priv->management_timer.data = (unsigned long) dev;
|
| 1564 |
|
|
|
| 1565 |
|
|
dev->open = atmel_open;
|
| 1566 |
|
|
dev->stop = atmel_close;
|
| 1567 |
|
|
dev->change_mtu = atmel_change_mtu;
|
| 1568 |
|
|
dev->set_mac_address = atmel_set_mac_address;
|
| 1569 |
|
|
dev->hard_start_xmit = start_tx;
|
| 1570 |
|
|
dev->get_stats = atmel_get_stats;
|
| 1571 |
|
|
dev->wireless_handlers = (struct iw_handler_def *)&atmel_handler_def;
|
| 1572 |
|
|
dev->do_ioctl = atmel_ioctl;
|
| 1573 |
|
|
dev->irq = irq;
|
| 1574 |
|
|
dev->base_addr = port;
|
| 1575 |
|
|
|
| 1576 |
|
|
SET_NETDEV_DEV(dev, sys_dev);
|
| 1577 |
|
|
|
| 1578 |
|
|
if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) {
|
| 1579 |
|
|
printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc);
|
| 1580 |
|
|
goto err_out_free;
|
| 1581 |
|
|
}
|
| 1582 |
|
|
|
| 1583 |
|
|
if (!request_region(dev->base_addr, 32,
|
| 1584 |
|
|
priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) {
|
| 1585 |
|
|
goto err_out_irq;
|
| 1586 |
|
|
}
|
| 1587 |
|
|
|
| 1588 |
|
|
if (register_netdev(dev))
|
| 1589 |
|
|
goto err_out_res;
|
| 1590 |
|
|
|
| 1591 |
|
|
if (!probe_atmel_card(dev)){
|
| 1592 |
|
|
unregister_netdev(dev);
|
| 1593 |
|
|
goto err_out_res;
|
| 1594 |
|
|
}
|
| 1595 |
|
|
|
| 1596 |
|
|
netif_carrier_off(dev);
|
| 1597 |
|
|
|
| 1598 |
|
|
ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv);
|
| 1599 |
|
|
if (!ent)
|
| 1600 |
|
|
printk(KERN_WARNING "atmel: unable to create /proc entry.\n");
|
| 1601 |
|
|
|
| 1602 |
|
|
printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %s\n",
|
| 1603 |
|
|
dev->name, DRIVER_MAJOR, DRIVER_MINOR, print_mac(mac, dev->dev_addr));
|
| 1604 |
|
|
|
| 1605 |
|
|
return dev;
|
| 1606 |
|
|
|
| 1607 |
|
|
err_out_res:
|
| 1608 |
|
|
release_region( dev->base_addr, 32);
|
| 1609 |
|
|
err_out_irq:
|
| 1610 |
|
|
free_irq(dev->irq, dev);
|
| 1611 |
|
|
err_out_free:
|
| 1612 |
|
|
free_netdev(dev);
|
| 1613 |
|
|
return NULL;
|
| 1614 |
|
|
}
|
| 1615 |
|
|
|
| 1616 |
|
|
EXPORT_SYMBOL(init_atmel_card);
|
| 1617 |
|
|
|
| 1618 |
|
|
void stop_atmel_card(struct net_device *dev)
|
| 1619 |
|
|
{
|
| 1620 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1621 |
|
|
|
| 1622 |
|
|
/* put a brick on it... */
|
| 1623 |
|
|
if (priv->bus_type == BUS_TYPE_PCCARD)
|
| 1624 |
|
|
atmel_write16(dev, GCR, 0x0060);
|
| 1625 |
|
|
atmel_write16(dev, GCR, 0x0040);
|
| 1626 |
|
|
|
| 1627 |
|
|
del_timer_sync(&priv->management_timer);
|
| 1628 |
|
|
unregister_netdev(dev);
|
| 1629 |
|
|
remove_proc_entry("driver/atmel", NULL);
|
| 1630 |
|
|
free_irq(dev->irq, dev);
|
| 1631 |
|
|
kfree(priv->firmware);
|
| 1632 |
|
|
release_region(dev->base_addr, 32);
|
| 1633 |
|
|
free_netdev(dev);
|
| 1634 |
|
|
}
|
| 1635 |
|
|
|
| 1636 |
|
|
EXPORT_SYMBOL(stop_atmel_card);
|
| 1637 |
|
|
|
| 1638 |
|
|
static int atmel_set_essid(struct net_device *dev,
|
| 1639 |
|
|
struct iw_request_info *info,
|
| 1640 |
|
|
struct iw_point *dwrq,
|
| 1641 |
|
|
char *extra)
|
| 1642 |
|
|
{
|
| 1643 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1644 |
|
|
|
| 1645 |
|
|
/* Check if we asked for `any' */
|
| 1646 |
|
|
if(dwrq->flags == 0) {
|
| 1647 |
|
|
priv->connect_to_any_BSS = 1;
|
| 1648 |
|
|
} else {
|
| 1649 |
|
|
int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
|
| 1650 |
|
|
|
| 1651 |
|
|
priv->connect_to_any_BSS = 0;
|
| 1652 |
|
|
|
| 1653 |
|
|
/* Check the size of the string */
|
| 1654 |
|
|
if (dwrq->length > MAX_SSID_LENGTH)
|
| 1655 |
|
|
return -E2BIG;
|
| 1656 |
|
|
if (index != 0)
|
| 1657 |
|
|
return -EINVAL;
|
| 1658 |
|
|
|
| 1659 |
|
|
memcpy(priv->new_SSID, extra, dwrq->length);
|
| 1660 |
|
|
priv->new_SSID_size = dwrq->length;
|
| 1661 |
|
|
}
|
| 1662 |
|
|
|
| 1663 |
|
|
return -EINPROGRESS;
|
| 1664 |
|
|
}
|
| 1665 |
|
|
|
| 1666 |
|
|
static int atmel_get_essid(struct net_device *dev,
|
| 1667 |
|
|
struct iw_request_info *info,
|
| 1668 |
|
|
struct iw_point *dwrq,
|
| 1669 |
|
|
char *extra)
|
| 1670 |
|
|
{
|
| 1671 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1672 |
|
|
|
| 1673 |
|
|
/* Get the current SSID */
|
| 1674 |
|
|
if (priv->new_SSID_size != 0) {
|
| 1675 |
|
|
memcpy(extra, priv->new_SSID, priv->new_SSID_size);
|
| 1676 |
|
|
dwrq->length = priv->new_SSID_size;
|
| 1677 |
|
|
} else {
|
| 1678 |
|
|
memcpy(extra, priv->SSID, priv->SSID_size);
|
| 1679 |
|
|
dwrq->length = priv->SSID_size;
|
| 1680 |
|
|
}
|
| 1681 |
|
|
|
| 1682 |
|
|
dwrq->flags = !priv->connect_to_any_BSS; /* active */
|
| 1683 |
|
|
|
| 1684 |
|
|
return 0;
|
| 1685 |
|
|
}
|
| 1686 |
|
|
|
| 1687 |
|
|
static int atmel_get_wap(struct net_device *dev,
|
| 1688 |
|
|
struct iw_request_info *info,
|
| 1689 |
|
|
struct sockaddr *awrq,
|
| 1690 |
|
|
char *extra)
|
| 1691 |
|
|
{
|
| 1692 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1693 |
|
|
memcpy(awrq->sa_data, priv->CurrentBSSID, 6);
|
| 1694 |
|
|
awrq->sa_family = ARPHRD_ETHER;
|
| 1695 |
|
|
|
| 1696 |
|
|
return 0;
|
| 1697 |
|
|
}
|
| 1698 |
|
|
|
| 1699 |
|
|
static int atmel_set_encode(struct net_device *dev,
|
| 1700 |
|
|
struct iw_request_info *info,
|
| 1701 |
|
|
struct iw_point *dwrq,
|
| 1702 |
|
|
char *extra)
|
| 1703 |
|
|
{
|
| 1704 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1705 |
|
|
|
| 1706 |
|
|
/* Basic checking: do we have a key to set ?
|
| 1707 |
|
|
* Note : with the new API, it's impossible to get a NULL pointer.
|
| 1708 |
|
|
* Therefore, we need to check a key size == 0 instead.
|
| 1709 |
|
|
* New version of iwconfig properly set the IW_ENCODE_NOKEY flag
|
| 1710 |
|
|
* when no key is present (only change flags), but older versions
|
| 1711 |
|
|
* don't do it. - Jean II */
|
| 1712 |
|
|
if (dwrq->length > 0) {
|
| 1713 |
|
|
int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
|
| 1714 |
|
|
int current_index = priv->default_key;
|
| 1715 |
|
|
/* Check the size of the key */
|
| 1716 |
|
|
if (dwrq->length > 13) {
|
| 1717 |
|
|
return -EINVAL;
|
| 1718 |
|
|
}
|
| 1719 |
|
|
/* Check the index (none -> use current) */
|
| 1720 |
|
|
if (index < 0 || index >= 4)
|
| 1721 |
|
|
index = current_index;
|
| 1722 |
|
|
else
|
| 1723 |
|
|
priv->default_key = index;
|
| 1724 |
|
|
/* Set the length */
|
| 1725 |
|
|
if (dwrq->length > 5)
|
| 1726 |
|
|
priv->wep_key_len[index] = 13;
|
| 1727 |
|
|
else
|
| 1728 |
|
|
if (dwrq->length > 0)
|
| 1729 |
|
|
priv->wep_key_len[index] = 5;
|
| 1730 |
|
|
else
|
| 1731 |
|
|
/* Disable the key */
|
| 1732 |
|
|
priv->wep_key_len[index] = 0;
|
| 1733 |
|
|
/* Check if the key is not marked as invalid */
|
| 1734 |
|
|
if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
|
| 1735 |
|
|
/* Cleanup */
|
| 1736 |
|
|
memset(priv->wep_keys[index], 0, 13);
|
| 1737 |
|
|
/* Copy the key in the driver */
|
| 1738 |
|
|
memcpy(priv->wep_keys[index], extra, dwrq->length);
|
| 1739 |
|
|
}
|
| 1740 |
|
|
/* WE specify that if a valid key is set, encryption
|
| 1741 |
|
|
* should be enabled (user may turn it off later)
|
| 1742 |
|
|
* This is also how "iwconfig ethX key on" works */
|
| 1743 |
|
|
if (index == current_index &&
|
| 1744 |
|
|
priv->wep_key_len[index] > 0) {
|
| 1745 |
|
|
priv->wep_is_on = 1;
|
| 1746 |
|
|
priv->exclude_unencrypted = 1;
|
| 1747 |
|
|
if (priv->wep_key_len[index] > 5) {
|
| 1748 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
|
| 1749 |
|
|
priv->encryption_level = 2;
|
| 1750 |
|
|
} else {
|
| 1751 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
|
| 1752 |
|
|
priv->encryption_level = 1;
|
| 1753 |
|
|
}
|
| 1754 |
|
|
}
|
| 1755 |
|
|
} else {
|
| 1756 |
|
|
/* Do we want to just set the transmit key index ? */
|
| 1757 |
|
|
int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
|
| 1758 |
|
|
if (index >= 0 && index < 4) {
|
| 1759 |
|
|
priv->default_key = index;
|
| 1760 |
|
|
} else
|
| 1761 |
|
|
/* Don't complain if only change the mode */
|
| 1762 |
|
|
if (!dwrq->flags & IW_ENCODE_MODE) {
|
| 1763 |
|
|
return -EINVAL;
|
| 1764 |
|
|
}
|
| 1765 |
|
|
}
|
| 1766 |
|
|
/* Read the flags */
|
| 1767 |
|
|
if (dwrq->flags & IW_ENCODE_DISABLED) {
|
| 1768 |
|
|
priv->wep_is_on = 0;
|
| 1769 |
|
|
priv->encryption_level = 0;
|
| 1770 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
|
| 1771 |
|
|
} else {
|
| 1772 |
|
|
priv->wep_is_on = 1;
|
| 1773 |
|
|
if (priv->wep_key_len[priv->default_key] > 5) {
|
| 1774 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
|
| 1775 |
|
|
priv->encryption_level = 2;
|
| 1776 |
|
|
} else {
|
| 1777 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
|
| 1778 |
|
|
priv->encryption_level = 1;
|
| 1779 |
|
|
}
|
| 1780 |
|
|
}
|
| 1781 |
|
|
if (dwrq->flags & IW_ENCODE_RESTRICTED)
|
| 1782 |
|
|
priv->exclude_unencrypted = 1;
|
| 1783 |
|
|
if(dwrq->flags & IW_ENCODE_OPEN)
|
| 1784 |
|
|
priv->exclude_unencrypted = 0;
|
| 1785 |
|
|
|
| 1786 |
|
|
return -EINPROGRESS; /* Call commit handler */
|
| 1787 |
|
|
}
|
| 1788 |
|
|
|
| 1789 |
|
|
static int atmel_get_encode(struct net_device *dev,
|
| 1790 |
|
|
struct iw_request_info *info,
|
| 1791 |
|
|
struct iw_point *dwrq,
|
| 1792 |
|
|
char *extra)
|
| 1793 |
|
|
{
|
| 1794 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1795 |
|
|
int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
|
| 1796 |
|
|
|
| 1797 |
|
|
if (!priv->wep_is_on)
|
| 1798 |
|
|
dwrq->flags = IW_ENCODE_DISABLED;
|
| 1799 |
|
|
else {
|
| 1800 |
|
|
if (priv->exclude_unencrypted)
|
| 1801 |
|
|
dwrq->flags = IW_ENCODE_RESTRICTED;
|
| 1802 |
|
|
else
|
| 1803 |
|
|
dwrq->flags = IW_ENCODE_OPEN;
|
| 1804 |
|
|
}
|
| 1805 |
|
|
/* Which key do we want ? -1 -> tx index */
|
| 1806 |
|
|
if (index < 0 || index >= 4)
|
| 1807 |
|
|
index = priv->default_key;
|
| 1808 |
|
|
dwrq->flags |= index + 1;
|
| 1809 |
|
|
/* Copy the key to the user buffer */
|
| 1810 |
|
|
dwrq->length = priv->wep_key_len[index];
|
| 1811 |
|
|
if (dwrq->length > 16) {
|
| 1812 |
|
|
dwrq->length=0;
|
| 1813 |
|
|
} else {
|
| 1814 |
|
|
memset(extra, 0, 16);
|
| 1815 |
|
|
memcpy(extra, priv->wep_keys[index], dwrq->length);
|
| 1816 |
|
|
}
|
| 1817 |
|
|
|
| 1818 |
|
|
return 0;
|
| 1819 |
|
|
}
|
| 1820 |
|
|
|
| 1821 |
|
|
static int atmel_set_encodeext(struct net_device *dev,
|
| 1822 |
|
|
struct iw_request_info *info,
|
| 1823 |
|
|
union iwreq_data *wrqu,
|
| 1824 |
|
|
char *extra)
|
| 1825 |
|
|
{
|
| 1826 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1827 |
|
|
struct iw_point *encoding = &wrqu->encoding;
|
| 1828 |
|
|
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
|
| 1829 |
|
|
int idx, key_len, alg = ext->alg, set_key = 1;
|
| 1830 |
|
|
|
| 1831 |
|
|
/* Determine and validate the key index */
|
| 1832 |
|
|
idx = encoding->flags & IW_ENCODE_INDEX;
|
| 1833 |
|
|
if (idx) {
|
| 1834 |
|
|
if (idx < 1 || idx > WEP_KEYS)
|
| 1835 |
|
|
return -EINVAL;
|
| 1836 |
|
|
idx--;
|
| 1837 |
|
|
} else
|
| 1838 |
|
|
idx = priv->default_key;
|
| 1839 |
|
|
|
| 1840 |
|
|
if (encoding->flags & IW_ENCODE_DISABLED)
|
| 1841 |
|
|
alg = IW_ENCODE_ALG_NONE;
|
| 1842 |
|
|
|
| 1843 |
|
|
if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
|
| 1844 |
|
|
priv->default_key = idx;
|
| 1845 |
|
|
set_key = ext->key_len > 0 ? 1 : 0;
|
| 1846 |
|
|
}
|
| 1847 |
|
|
|
| 1848 |
|
|
if (set_key) {
|
| 1849 |
|
|
/* Set the requested key first */
|
| 1850 |
|
|
switch (alg) {
|
| 1851 |
|
|
case IW_ENCODE_ALG_NONE:
|
| 1852 |
|
|
priv->wep_is_on = 0;
|
| 1853 |
|
|
priv->encryption_level = 0;
|
| 1854 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
|
| 1855 |
|
|
break;
|
| 1856 |
|
|
case IW_ENCODE_ALG_WEP:
|
| 1857 |
|
|
if (ext->key_len > 5) {
|
| 1858 |
|
|
priv->wep_key_len[idx] = 13;
|
| 1859 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
|
| 1860 |
|
|
priv->encryption_level = 2;
|
| 1861 |
|
|
} else if (ext->key_len > 0) {
|
| 1862 |
|
|
priv->wep_key_len[idx] = 5;
|
| 1863 |
|
|
priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
|
| 1864 |
|
|
priv->encryption_level = 1;
|
| 1865 |
|
|
} else {
|
| 1866 |
|
|
return -EINVAL;
|
| 1867 |
|
|
}
|
| 1868 |
|
|
priv->wep_is_on = 1;
|
| 1869 |
|
|
memset(priv->wep_keys[idx], 0, 13);
|
| 1870 |
|
|
key_len = min ((int)ext->key_len, priv->wep_key_len[idx]);
|
| 1871 |
|
|
memcpy(priv->wep_keys[idx], ext->key, key_len);
|
| 1872 |
|
|
break;
|
| 1873 |
|
|
default:
|
| 1874 |
|
|
return -EINVAL;
|
| 1875 |
|
|
}
|
| 1876 |
|
|
}
|
| 1877 |
|
|
|
| 1878 |
|
|
return -EINPROGRESS;
|
| 1879 |
|
|
}
|
| 1880 |
|
|
|
| 1881 |
|
|
static int atmel_get_encodeext(struct net_device *dev,
|
| 1882 |
|
|
struct iw_request_info *info,
|
| 1883 |
|
|
union iwreq_data *wrqu,
|
| 1884 |
|
|
char *extra)
|
| 1885 |
|
|
{
|
| 1886 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1887 |
|
|
struct iw_point *encoding = &wrqu->encoding;
|
| 1888 |
|
|
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
|
| 1889 |
|
|
int idx, max_key_len;
|
| 1890 |
|
|
|
| 1891 |
|
|
max_key_len = encoding->length - sizeof(*ext);
|
| 1892 |
|
|
if (max_key_len < 0)
|
| 1893 |
|
|
return -EINVAL;
|
| 1894 |
|
|
|
| 1895 |
|
|
idx = encoding->flags & IW_ENCODE_INDEX;
|
| 1896 |
|
|
if (idx) {
|
| 1897 |
|
|
if (idx < 1 || idx > WEP_KEYS)
|
| 1898 |
|
|
return -EINVAL;
|
| 1899 |
|
|
idx--;
|
| 1900 |
|
|
} else
|
| 1901 |
|
|
idx = priv->default_key;
|
| 1902 |
|
|
|
| 1903 |
|
|
encoding->flags = idx + 1;
|
| 1904 |
|
|
memset(ext, 0, sizeof(*ext));
|
| 1905 |
|
|
|
| 1906 |
|
|
if (!priv->wep_is_on) {
|
| 1907 |
|
|
ext->alg = IW_ENCODE_ALG_NONE;
|
| 1908 |
|
|
ext->key_len = 0;
|
| 1909 |
|
|
encoding->flags |= IW_ENCODE_DISABLED;
|
| 1910 |
|
|
} else {
|
| 1911 |
|
|
if (priv->encryption_level > 0)
|
| 1912 |
|
|
ext->alg = IW_ENCODE_ALG_WEP;
|
| 1913 |
|
|
else
|
| 1914 |
|
|
return -EINVAL;
|
| 1915 |
|
|
|
| 1916 |
|
|
ext->key_len = priv->wep_key_len[idx];
|
| 1917 |
|
|
memcpy(ext->key, priv->wep_keys[idx], ext->key_len);
|
| 1918 |
|
|
encoding->flags |= IW_ENCODE_ENABLED;
|
| 1919 |
|
|
}
|
| 1920 |
|
|
|
| 1921 |
|
|
return 0;
|
| 1922 |
|
|
}
|
| 1923 |
|
|
|
| 1924 |
|
|
static int atmel_set_auth(struct net_device *dev,
|
| 1925 |
|
|
struct iw_request_info *info,
|
| 1926 |
|
|
union iwreq_data *wrqu, char *extra)
|
| 1927 |
|
|
{
|
| 1928 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1929 |
|
|
struct iw_param *param = &wrqu->param;
|
| 1930 |
|
|
|
| 1931 |
|
|
switch (param->flags & IW_AUTH_INDEX) {
|
| 1932 |
|
|
case IW_AUTH_WPA_VERSION:
|
| 1933 |
|
|
case IW_AUTH_CIPHER_PAIRWISE:
|
| 1934 |
|
|
case IW_AUTH_CIPHER_GROUP:
|
| 1935 |
|
|
case IW_AUTH_KEY_MGMT:
|
| 1936 |
|
|
case IW_AUTH_RX_UNENCRYPTED_EAPOL:
|
| 1937 |
|
|
case IW_AUTH_PRIVACY_INVOKED:
|
| 1938 |
|
|
/*
|
| 1939 |
|
|
* atmel does not use these parameters
|
| 1940 |
|
|
*/
|
| 1941 |
|
|
break;
|
| 1942 |
|
|
|
| 1943 |
|
|
case IW_AUTH_DROP_UNENCRYPTED:
|
| 1944 |
|
|
priv->exclude_unencrypted = param->value ? 1 : 0;
|
| 1945 |
|
|
break;
|
| 1946 |
|
|
|
| 1947 |
|
|
case IW_AUTH_80211_AUTH_ALG: {
|
| 1948 |
|
|
if (param->value & IW_AUTH_ALG_SHARED_KEY) {
|
| 1949 |
|
|
priv->exclude_unencrypted = 1;
|
| 1950 |
|
|
} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
|
| 1951 |
|
|
priv->exclude_unencrypted = 0;
|
| 1952 |
|
|
} else
|
| 1953 |
|
|
return -EINVAL;
|
| 1954 |
|
|
break;
|
| 1955 |
|
|
}
|
| 1956 |
|
|
|
| 1957 |
|
|
case IW_AUTH_WPA_ENABLED:
|
| 1958 |
|
|
/* Silently accept disable of WPA */
|
| 1959 |
|
|
if (param->value > 0)
|
| 1960 |
|
|
return -EOPNOTSUPP;
|
| 1961 |
|
|
break;
|
| 1962 |
|
|
|
| 1963 |
|
|
default:
|
| 1964 |
|
|
return -EOPNOTSUPP;
|
| 1965 |
|
|
}
|
| 1966 |
|
|
return -EINPROGRESS;
|
| 1967 |
|
|
}
|
| 1968 |
|
|
|
| 1969 |
|
|
static int atmel_get_auth(struct net_device *dev,
|
| 1970 |
|
|
struct iw_request_info *info,
|
| 1971 |
|
|
union iwreq_data *wrqu, char *extra)
|
| 1972 |
|
|
{
|
| 1973 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 1974 |
|
|
struct iw_param *param = &wrqu->param;
|
| 1975 |
|
|
|
| 1976 |
|
|
switch (param->flags & IW_AUTH_INDEX) {
|
| 1977 |
|
|
case IW_AUTH_DROP_UNENCRYPTED:
|
| 1978 |
|
|
param->value = priv->exclude_unencrypted;
|
| 1979 |
|
|
break;
|
| 1980 |
|
|
|
| 1981 |
|
|
case IW_AUTH_80211_AUTH_ALG:
|
| 1982 |
|
|
if (priv->exclude_unencrypted == 1)
|
| 1983 |
|
|
param->value = IW_AUTH_ALG_SHARED_KEY;
|
| 1984 |
|
|
else
|
| 1985 |
|
|
param->value = IW_AUTH_ALG_OPEN_SYSTEM;
|
| 1986 |
|
|
break;
|
| 1987 |
|
|
|
| 1988 |
|
|
case IW_AUTH_WPA_ENABLED:
|
| 1989 |
|
|
param->value = 0;
|
| 1990 |
|
|
break;
|
| 1991 |
|
|
|
| 1992 |
|
|
default:
|
| 1993 |
|
|
return -EOPNOTSUPP;
|
| 1994 |
|
|
}
|
| 1995 |
|
|
return 0;
|
| 1996 |
|
|
}
|
| 1997 |
|
|
|
| 1998 |
|
|
|
| 1999 |
|
|
static int atmel_get_name(struct net_device *dev,
|
| 2000 |
|
|
struct iw_request_info *info,
|
| 2001 |
|
|
char *cwrq,
|
| 2002 |
|
|
char *extra)
|
| 2003 |
|
|
{
|
| 2004 |
|
|
strcpy(cwrq, "IEEE 802.11-DS");
|
| 2005 |
|
|
return 0;
|
| 2006 |
|
|
}
|
| 2007 |
|
|
|
| 2008 |
|
|
static int atmel_set_rate(struct net_device *dev,
|
| 2009 |
|
|
struct iw_request_info *info,
|
| 2010 |
|
|
struct iw_param *vwrq,
|
| 2011 |
|
|
char *extra)
|
| 2012 |
|
|
{
|
| 2013 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2014 |
|
|
|
| 2015 |
|
|
if (vwrq->fixed == 0) {
|
| 2016 |
|
|
priv->tx_rate = 3;
|
| 2017 |
|
|
priv->auto_tx_rate = 1;
|
| 2018 |
|
|
} else {
|
| 2019 |
|
|
priv->auto_tx_rate = 0;
|
| 2020 |
|
|
|
| 2021 |
|
|
/* Which type of value ? */
|
| 2022 |
|
|
if ((vwrq->value < 4) && (vwrq->value >= 0)) {
|
| 2023 |
|
|
/* Setting by rate index */
|
| 2024 |
|
|
priv->tx_rate = vwrq->value;
|
| 2025 |
|
|
} else {
|
| 2026 |
|
|
/* Setting by frequency value */
|
| 2027 |
|
|
switch (vwrq->value) {
|
| 2028 |
|
|
case 1000000: priv->tx_rate = 0; break;
|
| 2029 |
|
|
case 2000000: priv->tx_rate = 1; break;
|
| 2030 |
|
|
case 5500000: priv->tx_rate = 2; break;
|
| 2031 |
|
|
case 11000000: priv->tx_rate = 3; break;
|
| 2032 |
|
|
default: return -EINVAL;
|
| 2033 |
|
|
}
|
| 2034 |
|
|
}
|
| 2035 |
|
|
}
|
| 2036 |
|
|
|
| 2037 |
|
|
return -EINPROGRESS;
|
| 2038 |
|
|
}
|
| 2039 |
|
|
|
| 2040 |
|
|
static int atmel_set_mode(struct net_device *dev,
|
| 2041 |
|
|
struct iw_request_info *info,
|
| 2042 |
|
|
__u32 *uwrq,
|
| 2043 |
|
|
char *extra)
|
| 2044 |
|
|
{
|
| 2045 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2046 |
|
|
|
| 2047 |
|
|
if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA)
|
| 2048 |
|
|
return -EINVAL;
|
| 2049 |
|
|
|
| 2050 |
|
|
priv->operating_mode = *uwrq;
|
| 2051 |
|
|
return -EINPROGRESS;
|
| 2052 |
|
|
}
|
| 2053 |
|
|
|
| 2054 |
|
|
static int atmel_get_mode(struct net_device *dev,
|
| 2055 |
|
|
struct iw_request_info *info,
|
| 2056 |
|
|
__u32 *uwrq,
|
| 2057 |
|
|
char *extra)
|
| 2058 |
|
|
{
|
| 2059 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2060 |
|
|
|
| 2061 |
|
|
*uwrq = priv->operating_mode;
|
| 2062 |
|
|
return 0;
|
| 2063 |
|
|
}
|
| 2064 |
|
|
|
| 2065 |
|
|
static int atmel_get_rate(struct net_device *dev,
|
| 2066 |
|
|
struct iw_request_info *info,
|
| 2067 |
|
|
struct iw_param *vwrq,
|
| 2068 |
|
|
char *extra)
|
| 2069 |
|
|
{
|
| 2070 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2071 |
|
|
|
| 2072 |
|
|
if (priv->auto_tx_rate) {
|
| 2073 |
|
|
vwrq->fixed = 0;
|
| 2074 |
|
|
vwrq->value = 11000000;
|
| 2075 |
|
|
} else {
|
| 2076 |
|
|
vwrq->fixed = 1;
|
| 2077 |
|
|
switch(priv->tx_rate) {
|
| 2078 |
|
|
case 0: vwrq->value = 1000000; break;
|
| 2079 |
|
|
case 1: vwrq->value = 2000000; break;
|
| 2080 |
|
|
case 2: vwrq->value = 5500000; break;
|
| 2081 |
|
|
case 3: vwrq->value = 11000000; break;
|
| 2082 |
|
|
}
|
| 2083 |
|
|
}
|
| 2084 |
|
|
return 0;
|
| 2085 |
|
|
}
|
| 2086 |
|
|
|
| 2087 |
|
|
static int atmel_set_power(struct net_device *dev,
|
| 2088 |
|
|
struct iw_request_info *info,
|
| 2089 |
|
|
struct iw_param *vwrq,
|
| 2090 |
|
|
char *extra)
|
| 2091 |
|
|
{
|
| 2092 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2093 |
|
|
priv->power_mode = vwrq->disabled ? 0 : 1;
|
| 2094 |
|
|
return -EINPROGRESS;
|
| 2095 |
|
|
}
|
| 2096 |
|
|
|
| 2097 |
|
|
static int atmel_get_power(struct net_device *dev,
|
| 2098 |
|
|
struct iw_request_info *info,
|
| 2099 |
|
|
struct iw_param *vwrq,
|
| 2100 |
|
|
char *extra)
|
| 2101 |
|
|
{
|
| 2102 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2103 |
|
|
vwrq->disabled = priv->power_mode ? 0 : 1;
|
| 2104 |
|
|
vwrq->flags = IW_POWER_ON;
|
| 2105 |
|
|
return 0;
|
| 2106 |
|
|
}
|
| 2107 |
|
|
|
| 2108 |
|
|
static int atmel_set_retry(struct net_device *dev,
|
| 2109 |
|
|
struct iw_request_info *info,
|
| 2110 |
|
|
struct iw_param *vwrq,
|
| 2111 |
|
|
char *extra)
|
| 2112 |
|
|
{
|
| 2113 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2114 |
|
|
|
| 2115 |
|
|
if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) {
|
| 2116 |
|
|
if (vwrq->flags & IW_RETRY_LONG)
|
| 2117 |
|
|
priv->long_retry = vwrq->value;
|
| 2118 |
|
|
else if (vwrq->flags & IW_RETRY_SHORT)
|
| 2119 |
|
|
priv->short_retry = vwrq->value;
|
| 2120 |
|
|
else {
|
| 2121 |
|
|
/* No modifier : set both */
|
| 2122 |
|
|
priv->long_retry = vwrq->value;
|
| 2123 |
|
|
priv->short_retry = vwrq->value;
|
| 2124 |
|
|
}
|
| 2125 |
|
|
return -EINPROGRESS;
|
| 2126 |
|
|
}
|
| 2127 |
|
|
|
| 2128 |
|
|
return -EINVAL;
|
| 2129 |
|
|
}
|
| 2130 |
|
|
|
| 2131 |
|
|
static int atmel_get_retry(struct net_device *dev,
|
| 2132 |
|
|
struct iw_request_info *info,
|
| 2133 |
|
|
struct iw_param *vwrq,
|
| 2134 |
|
|
char *extra)
|
| 2135 |
|
|
{
|
| 2136 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2137 |
|
|
|
| 2138 |
|
|
vwrq->disabled = 0; /* Can't be disabled */
|
| 2139 |
|
|
|
| 2140 |
|
|
/* Note : by default, display the short retry number */
|
| 2141 |
|
|
if (vwrq->flags & IW_RETRY_LONG) {
|
| 2142 |
|
|
vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
|
| 2143 |
|
|
vwrq->value = priv->long_retry;
|
| 2144 |
|
|
} else {
|
| 2145 |
|
|
vwrq->flags = IW_RETRY_LIMIT;
|
| 2146 |
|
|
vwrq->value = priv->short_retry;
|
| 2147 |
|
|
if (priv->long_retry != priv->short_retry)
|
| 2148 |
|
|
vwrq->flags |= IW_RETRY_SHORT;
|
| 2149 |
|
|
}
|
| 2150 |
|
|
|
| 2151 |
|
|
return 0;
|
| 2152 |
|
|
}
|
| 2153 |
|
|
|
| 2154 |
|
|
static int atmel_set_rts(struct net_device *dev,
|
| 2155 |
|
|
struct iw_request_info *info,
|
| 2156 |
|
|
struct iw_param *vwrq,
|
| 2157 |
|
|
char *extra)
|
| 2158 |
|
|
{
|
| 2159 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2160 |
|
|
int rthr = vwrq->value;
|
| 2161 |
|
|
|
| 2162 |
|
|
if (vwrq->disabled)
|
| 2163 |
|
|
rthr = 2347;
|
| 2164 |
|
|
if ((rthr < 0) || (rthr > 2347)) {
|
| 2165 |
|
|
return -EINVAL;
|
| 2166 |
|
|
}
|
| 2167 |
|
|
priv->rts_threshold = rthr;
|
| 2168 |
|
|
|
| 2169 |
|
|
return -EINPROGRESS; /* Call commit handler */
|
| 2170 |
|
|
}
|
| 2171 |
|
|
|
| 2172 |
|
|
static int atmel_get_rts(struct net_device *dev,
|
| 2173 |
|
|
struct iw_request_info *info,
|
| 2174 |
|
|
struct iw_param *vwrq,
|
| 2175 |
|
|
char *extra)
|
| 2176 |
|
|
{
|
| 2177 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2178 |
|
|
|
| 2179 |
|
|
vwrq->value = priv->rts_threshold;
|
| 2180 |
|
|
vwrq->disabled = (vwrq->value >= 2347);
|
| 2181 |
|
|
vwrq->fixed = 1;
|
| 2182 |
|
|
|
| 2183 |
|
|
return 0;
|
| 2184 |
|
|
}
|
| 2185 |
|
|
|
| 2186 |
|
|
static int atmel_set_frag(struct net_device *dev,
|
| 2187 |
|
|
struct iw_request_info *info,
|
| 2188 |
|
|
struct iw_param *vwrq,
|
| 2189 |
|
|
char *extra)
|
| 2190 |
|
|
{
|
| 2191 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2192 |
|
|
int fthr = vwrq->value;
|
| 2193 |
|
|
|
| 2194 |
|
|
if (vwrq->disabled)
|
| 2195 |
|
|
fthr = 2346;
|
| 2196 |
|
|
if ((fthr < 256) || (fthr > 2346)) {
|
| 2197 |
|
|
return -EINVAL;
|
| 2198 |
|
|
}
|
| 2199 |
|
|
fthr &= ~0x1; /* Get an even value - is it really needed ??? */
|
| 2200 |
|
|
priv->frag_threshold = fthr;
|
| 2201 |
|
|
|
| 2202 |
|
|
return -EINPROGRESS; /* Call commit handler */
|
| 2203 |
|
|
}
|
| 2204 |
|
|
|
| 2205 |
|
|
static int atmel_get_frag(struct net_device *dev,
|
| 2206 |
|
|
struct iw_request_info *info,
|
| 2207 |
|
|
struct iw_param *vwrq,
|
| 2208 |
|
|
char *extra)
|
| 2209 |
|
|
{
|
| 2210 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2211 |
|
|
|
| 2212 |
|
|
vwrq->value = priv->frag_threshold;
|
| 2213 |
|
|
vwrq->disabled = (vwrq->value >= 2346);
|
| 2214 |
|
|
vwrq->fixed = 1;
|
| 2215 |
|
|
|
| 2216 |
|
|
return 0;
|
| 2217 |
|
|
}
|
| 2218 |
|
|
|
| 2219 |
|
|
static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
|
| 2220 |
|
|
2447, 2452, 2457, 2462, 2467, 2472, 2484 };
|
| 2221 |
|
|
|
| 2222 |
|
|
static int atmel_set_freq(struct net_device *dev,
|
| 2223 |
|
|
struct iw_request_info *info,
|
| 2224 |
|
|
struct iw_freq *fwrq,
|
| 2225 |
|
|
char *extra)
|
| 2226 |
|
|
{
|
| 2227 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2228 |
|
|
int rc = -EINPROGRESS; /* Call commit handler */
|
| 2229 |
|
|
|
| 2230 |
|
|
/* If setting by frequency, convert to a channel */
|
| 2231 |
|
|
if ((fwrq->e == 1) &&
|
| 2232 |
|
|
(fwrq->m >= (int) 241200000) &&
|
| 2233 |
|
|
(fwrq->m <= (int) 248700000)) {
|
| 2234 |
|
|
int f = fwrq->m / 100000;
|
| 2235 |
|
|
int c = 0;
|
| 2236 |
|
|
while ((c < 14) && (f != frequency_list[c]))
|
| 2237 |
|
|
c++;
|
| 2238 |
|
|
/* Hack to fall through... */
|
| 2239 |
|
|
fwrq->e = 0;
|
| 2240 |
|
|
fwrq->m = c + 1;
|
| 2241 |
|
|
}
|
| 2242 |
|
|
/* Setting by channel number */
|
| 2243 |
|
|
if ((fwrq->m > 1000) || (fwrq->e > 0))
|
| 2244 |
|
|
rc = -EOPNOTSUPP;
|
| 2245 |
|
|
else {
|
| 2246 |
|
|
int channel = fwrq->m;
|
| 2247 |
|
|
if (atmel_validate_channel(priv, channel) == 0) {
|
| 2248 |
|
|
priv->channel = channel;
|
| 2249 |
|
|
} else {
|
| 2250 |
|
|
rc = -EINVAL;
|
| 2251 |
|
|
}
|
| 2252 |
|
|
}
|
| 2253 |
|
|
return rc;
|
| 2254 |
|
|
}
|
| 2255 |
|
|
|
| 2256 |
|
|
static int atmel_get_freq(struct net_device *dev,
|
| 2257 |
|
|
struct iw_request_info *info,
|
| 2258 |
|
|
struct iw_freq *fwrq,
|
| 2259 |
|
|
char *extra)
|
| 2260 |
|
|
{
|
| 2261 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2262 |
|
|
|
| 2263 |
|
|
fwrq->m = priv->channel;
|
| 2264 |
|
|
fwrq->e = 0;
|
| 2265 |
|
|
return 0;
|
| 2266 |
|
|
}
|
| 2267 |
|
|
|
| 2268 |
|
|
static int atmel_set_scan(struct net_device *dev,
|
| 2269 |
|
|
struct iw_request_info *info,
|
| 2270 |
|
|
struct iw_param *vwrq,
|
| 2271 |
|
|
char *extra)
|
| 2272 |
|
|
{
|
| 2273 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2274 |
|
|
unsigned long flags;
|
| 2275 |
|
|
|
| 2276 |
|
|
/* Note : you may have realised that, as this is a SET operation,
|
| 2277 |
|
|
* this is privileged and therefore a normal user can't
|
| 2278 |
|
|
* perform scanning.
|
| 2279 |
|
|
* This is not an error, while the device perform scanning,
|
| 2280 |
|
|
* traffic doesn't flow, so it's a perfect DoS...
|
| 2281 |
|
|
* Jean II */
|
| 2282 |
|
|
|
| 2283 |
|
|
if (priv->station_state == STATION_STATE_DOWN)
|
| 2284 |
|
|
return -EAGAIN;
|
| 2285 |
|
|
|
| 2286 |
|
|
/* Timeout old surveys. */
|
| 2287 |
|
|
if ((jiffies - priv->last_survey) > (20 * HZ))
|
| 2288 |
|
|
priv->site_survey_state = SITE_SURVEY_IDLE;
|
| 2289 |
|
|
priv->last_survey = jiffies;
|
| 2290 |
|
|
|
| 2291 |
|
|
/* Initiate a scan command */
|
| 2292 |
|
|
if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS)
|
| 2293 |
|
|
return -EBUSY;
|
| 2294 |
|
|
|
| 2295 |
|
|
del_timer_sync(&priv->management_timer);
|
| 2296 |
|
|
spin_lock_irqsave(&priv->irqlock, flags);
|
| 2297 |
|
|
|
| 2298 |
|
|
priv->site_survey_state = SITE_SURVEY_IN_PROGRESS;
|
| 2299 |
|
|
priv->fast_scan = 0;
|
| 2300 |
|
|
atmel_scan(priv, 0);
|
| 2301 |
|
|
spin_unlock_irqrestore(&priv->irqlock, flags);
|
| 2302 |
|
|
|
| 2303 |
|
|
return 0;
|
| 2304 |
|
|
}
|
| 2305 |
|
|
|
| 2306 |
|
|
static int atmel_get_scan(struct net_device *dev,
|
| 2307 |
|
|
struct iw_request_info *info,
|
| 2308 |
|
|
struct iw_point *dwrq,
|
| 2309 |
|
|
char *extra)
|
| 2310 |
|
|
{
|
| 2311 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2312 |
|
|
int i;
|
| 2313 |
|
|
char *current_ev = extra;
|
| 2314 |
|
|
struct iw_event iwe;
|
| 2315 |
|
|
|
| 2316 |
|
|
if (priv->site_survey_state != SITE_SURVEY_COMPLETED)
|
| 2317 |
|
|
return -EAGAIN;
|
| 2318 |
|
|
|
| 2319 |
|
|
for (i = 0; i < priv->BSS_list_entries; i++) {
|
| 2320 |
|
|
iwe.cmd = SIOCGIWAP;
|
| 2321 |
|
|
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
|
| 2322 |
|
|
memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6);
|
| 2323 |
|
|
current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_ADDR_LEN);
|
| 2324 |
|
|
|
| 2325 |
|
|
iwe.u.data.length = priv->BSSinfo[i].SSIDsize;
|
| 2326 |
|
|
if (iwe.u.data.length > 32)
|
| 2327 |
|
|
iwe.u.data.length = 32;
|
| 2328 |
|
|
iwe.cmd = SIOCGIWESSID;
|
| 2329 |
|
|
iwe.u.data.flags = 1;
|
| 2330 |
|
|
current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, priv->BSSinfo[i].SSID);
|
| 2331 |
|
|
|
| 2332 |
|
|
iwe.cmd = SIOCGIWMODE;
|
| 2333 |
|
|
iwe.u.mode = priv->BSSinfo[i].BSStype;
|
| 2334 |
|
|
current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_UINT_LEN);
|
| 2335 |
|
|
|
| 2336 |
|
|
iwe.cmd = SIOCGIWFREQ;
|
| 2337 |
|
|
iwe.u.freq.m = priv->BSSinfo[i].channel;
|
| 2338 |
|
|
iwe.u.freq.e = 0;
|
| 2339 |
|
|
current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_FREQ_LEN);
|
| 2340 |
|
|
|
| 2341 |
|
|
/* Add quality statistics */
|
| 2342 |
|
|
iwe.cmd = IWEVQUAL;
|
| 2343 |
|
|
iwe.u.qual.level = priv->BSSinfo[i].RSSI;
|
| 2344 |
|
|
iwe.u.qual.qual = iwe.u.qual.level;
|
| 2345 |
|
|
/* iwe.u.qual.noise = SOMETHING */
|
| 2346 |
|
|
current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA , &iwe, IW_EV_QUAL_LEN);
|
| 2347 |
|
|
|
| 2348 |
|
|
|
| 2349 |
|
|
iwe.cmd = SIOCGIWENCODE;
|
| 2350 |
|
|
if (priv->BSSinfo[i].UsingWEP)
|
| 2351 |
|
|
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
|
| 2352 |
|
|
else
|
| 2353 |
|
|
iwe.u.data.flags = IW_ENCODE_DISABLED;
|
| 2354 |
|
|
iwe.u.data.length = 0;
|
| 2355 |
|
|
current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, NULL);
|
| 2356 |
|
|
}
|
| 2357 |
|
|
|
| 2358 |
|
|
/* Length of data */
|
| 2359 |
|
|
dwrq->length = (current_ev - extra);
|
| 2360 |
|
|
dwrq->flags = 0;
|
| 2361 |
|
|
|
| 2362 |
|
|
return 0;
|
| 2363 |
|
|
}
|
| 2364 |
|
|
|
| 2365 |
|
|
static int atmel_get_range(struct net_device *dev,
|
| 2366 |
|
|
struct iw_request_info *info,
|
| 2367 |
|
|
struct iw_point *dwrq,
|
| 2368 |
|
|
char *extra)
|
| 2369 |
|
|
{
|
| 2370 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2371 |
|
|
struct iw_range *range = (struct iw_range *) extra;
|
| 2372 |
|
|
int k, i, j;
|
| 2373 |
|
|
|
| 2374 |
|
|
dwrq->length = sizeof(struct iw_range);
|
| 2375 |
|
|
memset(range, 0, sizeof(struct iw_range));
|
| 2376 |
|
|
range->min_nwid = 0x0000;
|
| 2377 |
|
|
range->max_nwid = 0x0000;
|
| 2378 |
|
|
range->num_channels = 0;
|
| 2379 |
|
|
for (j = 0; j < ARRAY_SIZE(channel_table); j++)
|
| 2380 |
|
|
if (priv->reg_domain == channel_table[j].reg_domain) {
|
| 2381 |
|
|
range->num_channels = channel_table[j].max - channel_table[j].min + 1;
|
| 2382 |
|
|
break;
|
| 2383 |
|
|
}
|
| 2384 |
|
|
if (range->num_channels != 0) {
|
| 2385 |
|
|
for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) {
|
| 2386 |
|
|
range->freq[k].i = i; /* List index */
|
| 2387 |
|
|
range->freq[k].m = frequency_list[i - 1] * 100000;
|
| 2388 |
|
|
range->freq[k++].e = 1; /* Values in table in MHz -> * 10^5 * 10 */
|
| 2389 |
|
|
}
|
| 2390 |
|
|
range->num_frequency = k;
|
| 2391 |
|
|
}
|
| 2392 |
|
|
|
| 2393 |
|
|
range->max_qual.qual = 100;
|
| 2394 |
|
|
range->max_qual.level = 100;
|
| 2395 |
|
|
range->max_qual.noise = 0;
|
| 2396 |
|
|
range->max_qual.updated = IW_QUAL_NOISE_INVALID;
|
| 2397 |
|
|
|
| 2398 |
|
|
range->avg_qual.qual = 50;
|
| 2399 |
|
|
range->avg_qual.level = 50;
|
| 2400 |
|
|
range->avg_qual.noise = 0;
|
| 2401 |
|
|
range->avg_qual.updated = IW_QUAL_NOISE_INVALID;
|
| 2402 |
|
|
|
| 2403 |
|
|
range->sensitivity = 0;
|
| 2404 |
|
|
|
| 2405 |
|
|
range->bitrate[0] = 1000000;
|
| 2406 |
|
|
range->bitrate[1] = 2000000;
|
| 2407 |
|
|
range->bitrate[2] = 5500000;
|
| 2408 |
|
|
range->bitrate[3] = 11000000;
|
| 2409 |
|
|
range->num_bitrates = 4;
|
| 2410 |
|
|
|
| 2411 |
|
|
range->min_rts = 0;
|
| 2412 |
|
|
range->max_rts = 2347;
|
| 2413 |
|
|
range->min_frag = 256;
|
| 2414 |
|
|
range->max_frag = 2346;
|
| 2415 |
|
|
|
| 2416 |
|
|
range->encoding_size[0] = 5;
|
| 2417 |
|
|
range->encoding_size[1] = 13;
|
| 2418 |
|
|
range->num_encoding_sizes = 2;
|
| 2419 |
|
|
range->max_encoding_tokens = 4;
|
| 2420 |
|
|
|
| 2421 |
|
|
range->pmp_flags = IW_POWER_ON;
|
| 2422 |
|
|
range->pmt_flags = IW_POWER_ON;
|
| 2423 |
|
|
range->pm_capa = 0;
|
| 2424 |
|
|
|
| 2425 |
|
|
range->we_version_source = WIRELESS_EXT;
|
| 2426 |
|
|
range->we_version_compiled = WIRELESS_EXT;
|
| 2427 |
|
|
range->retry_capa = IW_RETRY_LIMIT ;
|
| 2428 |
|
|
range->retry_flags = IW_RETRY_LIMIT;
|
| 2429 |
|
|
range->r_time_flags = 0;
|
| 2430 |
|
|
range->min_retry = 1;
|
| 2431 |
|
|
range->max_retry = 65535;
|
| 2432 |
|
|
|
| 2433 |
|
|
return 0;
|
| 2434 |
|
|
}
|
| 2435 |
|
|
|
| 2436 |
|
|
static int atmel_set_wap(struct net_device *dev,
|
| 2437 |
|
|
struct iw_request_info *info,
|
| 2438 |
|
|
struct sockaddr *awrq,
|
| 2439 |
|
|
char *extra)
|
| 2440 |
|
|
{
|
| 2441 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2442 |
|
|
int i;
|
| 2443 |
|
|
static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
|
| 2444 |
|
|
static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
|
| 2445 |
|
|
unsigned long flags;
|
| 2446 |
|
|
|
| 2447 |
|
|
if (awrq->sa_family != ARPHRD_ETHER)
|
| 2448 |
|
|
return -EINVAL;
|
| 2449 |
|
|
|
| 2450 |
|
|
if (!memcmp(any, awrq->sa_data, 6) ||
|
| 2451 |
|
|
!memcmp(off, awrq->sa_data, 6)) {
|
| 2452 |
|
|
del_timer_sync(&priv->management_timer);
|
| 2453 |
|
|
spin_lock_irqsave(&priv->irqlock, flags);
|
| 2454 |
|
|
atmel_scan(priv, 1);
|
| 2455 |
|
|
spin_unlock_irqrestore(&priv->irqlock, flags);
|
| 2456 |
|
|
return 0;
|
| 2457 |
|
|
}
|
| 2458 |
|
|
|
| 2459 |
|
|
for (i = 0; i < priv->BSS_list_entries; i++) {
|
| 2460 |
|
|
if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) {
|
| 2461 |
|
|
if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) {
|
| 2462 |
|
|
return -EINVAL;
|
| 2463 |
|
|
} else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) {
|
| 2464 |
|
|
return -EINVAL;
|
| 2465 |
|
|
} else {
|
| 2466 |
|
|
del_timer_sync(&priv->management_timer);
|
| 2467 |
|
|
spin_lock_irqsave(&priv->irqlock, flags);
|
| 2468 |
|
|
atmel_join_bss(priv, i);
|
| 2469 |
|
|
spin_unlock_irqrestore(&priv->irqlock, flags);
|
| 2470 |
|
|
return 0;
|
| 2471 |
|
|
}
|
| 2472 |
|
|
}
|
| 2473 |
|
|
}
|
| 2474 |
|
|
|
| 2475 |
|
|
return -EINVAL;
|
| 2476 |
|
|
}
|
| 2477 |
|
|
|
| 2478 |
|
|
static int atmel_config_commit(struct net_device *dev,
|
| 2479 |
|
|
struct iw_request_info *info, /* NULL */
|
| 2480 |
|
|
void *zwrq, /* NULL */
|
| 2481 |
|
|
char *extra) /* NULL */
|
| 2482 |
|
|
{
|
| 2483 |
|
|
return atmel_open(dev);
|
| 2484 |
|
|
}
|
| 2485 |
|
|
|
| 2486 |
|
|
static const iw_handler atmel_handler[] =
|
| 2487 |
|
|
{
|
| 2488 |
|
|
(iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */
|
| 2489 |
|
|
(iw_handler) atmel_get_name, /* SIOCGIWNAME */
|
| 2490 |
|
|
(iw_handler) NULL, /* SIOCSIWNWID */
|
| 2491 |
|
|
(iw_handler) NULL, /* SIOCGIWNWID */
|
| 2492 |
|
|
(iw_handler) atmel_set_freq, /* SIOCSIWFREQ */
|
| 2493 |
|
|
(iw_handler) atmel_get_freq, /* SIOCGIWFREQ */
|
| 2494 |
|
|
(iw_handler) atmel_set_mode, /* SIOCSIWMODE */
|
| 2495 |
|
|
(iw_handler) atmel_get_mode, /* SIOCGIWMODE */
|
| 2496 |
|
|
(iw_handler) NULL, /* SIOCSIWSENS */
|
| 2497 |
|
|
(iw_handler) NULL, /* SIOCGIWSENS */
|
| 2498 |
|
|
(iw_handler) NULL, /* SIOCSIWRANGE */
|
| 2499 |
|
|
(iw_handler) atmel_get_range, /* SIOCGIWRANGE */
|
| 2500 |
|
|
(iw_handler) NULL, /* SIOCSIWPRIV */
|
| 2501 |
|
|
(iw_handler) NULL, /* SIOCGIWPRIV */
|
| 2502 |
|
|
(iw_handler) NULL, /* SIOCSIWSTATS */
|
| 2503 |
|
|
(iw_handler) NULL, /* SIOCGIWSTATS */
|
| 2504 |
|
|
(iw_handler) NULL, /* SIOCSIWSPY */
|
| 2505 |
|
|
(iw_handler) NULL, /* SIOCGIWSPY */
|
| 2506 |
|
|
(iw_handler) NULL, /* -- hole -- */
|
| 2507 |
|
|
(iw_handler) NULL, /* -- hole -- */
|
| 2508 |
|
|
(iw_handler) atmel_set_wap, /* SIOCSIWAP */
|
| 2509 |
|
|
(iw_handler) atmel_get_wap, /* SIOCGIWAP */
|
| 2510 |
|
|
(iw_handler) NULL, /* -- hole -- */
|
| 2511 |
|
|
(iw_handler) NULL, /* SIOCGIWAPLIST */
|
| 2512 |
|
|
(iw_handler) atmel_set_scan, /* SIOCSIWSCAN */
|
| 2513 |
|
|
(iw_handler) atmel_get_scan, /* SIOCGIWSCAN */
|
| 2514 |
|
|
(iw_handler) atmel_set_essid, /* SIOCSIWESSID */
|
| 2515 |
|
|
(iw_handler) atmel_get_essid, /* SIOCGIWESSID */
|
| 2516 |
|
|
(iw_handler) NULL, /* SIOCSIWNICKN */
|
| 2517 |
|
|
(iw_handler) NULL, /* SIOCGIWNICKN */
|
| 2518 |
|
|
(iw_handler) NULL, /* -- hole -- */
|
| 2519 |
|
|
(iw_handler) NULL, /* -- hole -- */
|
| 2520 |
|
|
(iw_handler) atmel_set_rate, /* SIOCSIWRATE */
|
| 2521 |
|
|
(iw_handler) atmel_get_rate, /* SIOCGIWRATE */
|
| 2522 |
|
|
(iw_handler) atmel_set_rts, /* SIOCSIWRTS */
|
| 2523 |
|
|
(iw_handler) atmel_get_rts, /* SIOCGIWRTS */
|
| 2524 |
|
|
(iw_handler) atmel_set_frag, /* SIOCSIWFRAG */
|
| 2525 |
|
|
(iw_handler) atmel_get_frag, /* SIOCGIWFRAG */
|
| 2526 |
|
|
(iw_handler) NULL, /* SIOCSIWTXPOW */
|
| 2527 |
|
|
(iw_handler) NULL, /* SIOCGIWTXPOW */
|
| 2528 |
|
|
(iw_handler) atmel_set_retry, /* SIOCSIWRETRY */
|
| 2529 |
|
|
(iw_handler) atmel_get_retry, /* SIOCGIWRETRY */
|
| 2530 |
|
|
(iw_handler) atmel_set_encode, /* SIOCSIWENCODE */
|
| 2531 |
|
|
(iw_handler) atmel_get_encode, /* SIOCGIWENCODE */
|
| 2532 |
|
|
(iw_handler) atmel_set_power, /* SIOCSIWPOWER */
|
| 2533 |
|
|
(iw_handler) atmel_get_power, /* SIOCGIWPOWER */
|
| 2534 |
|
|
(iw_handler) NULL, /* -- hole -- */
|
| 2535 |
|
|
(iw_handler) NULL, /* -- hole -- */
|
| 2536 |
|
|
(iw_handler) NULL, /* SIOCSIWGENIE */
|
| 2537 |
|
|
(iw_handler) NULL, /* SIOCGIWGENIE */
|
| 2538 |
|
|
(iw_handler) atmel_set_auth, /* SIOCSIWAUTH */
|
| 2539 |
|
|
(iw_handler) atmel_get_auth, /* SIOCGIWAUTH */
|
| 2540 |
|
|
(iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */
|
| 2541 |
|
|
(iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */
|
| 2542 |
|
|
(iw_handler) NULL, /* SIOCSIWPMKSA */
|
| 2543 |
|
|
};
|
| 2544 |
|
|
|
| 2545 |
|
|
static const iw_handler atmel_private_handler[] =
|
| 2546 |
|
|
{
|
| 2547 |
|
|
NULL, /* SIOCIWFIRSTPRIV */
|
| 2548 |
|
|
};
|
| 2549 |
|
|
|
| 2550 |
|
|
typedef struct atmel_priv_ioctl {
|
| 2551 |
|
|
char id[32];
|
| 2552 |
|
|
unsigned char __user *data;
|
| 2553 |
|
|
unsigned short len;
|
| 2554 |
|
|
} atmel_priv_ioctl;
|
| 2555 |
|
|
|
| 2556 |
|
|
#define ATMELFWL SIOCIWFIRSTPRIV
|
| 2557 |
|
|
#define ATMELIDIFC ATMELFWL + 1
|
| 2558 |
|
|
#define ATMELRD ATMELFWL + 2
|
| 2559 |
|
|
#define ATMELMAGIC 0x51807
|
| 2560 |
|
|
#define REGDOMAINSZ 20
|
| 2561 |
|
|
|
| 2562 |
|
|
static const struct iw_priv_args atmel_private_args[] = {
|
| 2563 |
|
|
{
|
| 2564 |
|
|
.cmd = ATMELFWL,
|
| 2565 |
|
|
.set_args = IW_PRIV_TYPE_BYTE
|
| 2566 |
|
|
| IW_PRIV_SIZE_FIXED
|
| 2567 |
|
|
| sizeof (atmel_priv_ioctl),
|
| 2568 |
|
|
.get_args = IW_PRIV_TYPE_NONE,
|
| 2569 |
|
|
.name = "atmelfwl"
|
| 2570 |
|
|
}, {
|
| 2571 |
|
|
.cmd = ATMELIDIFC,
|
| 2572 |
|
|
.set_args = IW_PRIV_TYPE_NONE,
|
| 2573 |
|
|
.get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
|
| 2574 |
|
|
.name = "atmelidifc"
|
| 2575 |
|
|
}, {
|
| 2576 |
|
|
.cmd = ATMELRD,
|
| 2577 |
|
|
.set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ,
|
| 2578 |
|
|
.get_args = IW_PRIV_TYPE_NONE,
|
| 2579 |
|
|
.name = "regdomain"
|
| 2580 |
|
|
},
|
| 2581 |
|
|
};
|
| 2582 |
|
|
|
| 2583 |
|
|
static const struct iw_handler_def atmel_handler_def =
|
| 2584 |
|
|
{
|
| 2585 |
|
|
.num_standard = ARRAY_SIZE(atmel_handler),
|
| 2586 |
|
|
.num_private = ARRAY_SIZE(atmel_private_handler),
|
| 2587 |
|
|
.num_private_args = ARRAY_SIZE(atmel_private_args),
|
| 2588 |
|
|
.standard = (iw_handler *) atmel_handler,
|
| 2589 |
|
|
.private = (iw_handler *) atmel_private_handler,
|
| 2590 |
|
|
.private_args = (struct iw_priv_args *) atmel_private_args,
|
| 2591 |
|
|
.get_wireless_stats = atmel_get_wireless_stats
|
| 2592 |
|
|
};
|
| 2593 |
|
|
|
| 2594 |
|
|
static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
| 2595 |
|
|
{
|
| 2596 |
|
|
int i, rc = 0;
|
| 2597 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 2598 |
|
|
atmel_priv_ioctl com;
|
| 2599 |
|
|
struct iwreq *wrq = (struct iwreq *) rq;
|
| 2600 |
|
|
unsigned char *new_firmware;
|
| 2601 |
|
|
char domain[REGDOMAINSZ + 1];
|
| 2602 |
|
|
|
| 2603 |
|
|
switch (cmd) {
|
| 2604 |
|
|
case ATMELIDIFC:
|
| 2605 |
|
|
wrq->u.param.value = ATMELMAGIC;
|
| 2606 |
|
|
break;
|
| 2607 |
|
|
|
| 2608 |
|
|
case ATMELFWL:
|
| 2609 |
|
|
if (copy_from_user(&com, rq->ifr_data, sizeof(com))) {
|
| 2610 |
|
|
rc = -EFAULT;
|
| 2611 |
|
|
break;
|
| 2612 |
|
|
}
|
| 2613 |
|
|
|
| 2614 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 2615 |
|
|
rc = -EPERM;
|
| 2616 |
|
|
break;
|
| 2617 |
|
|
}
|
| 2618 |
|
|
|
| 2619 |
|
|
if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) {
|
| 2620 |
|
|
rc = -ENOMEM;
|
| 2621 |
|
|
break;
|
| 2622 |
|
|
}
|
| 2623 |
|
|
|
| 2624 |
|
|
if (copy_from_user(new_firmware, com.data, com.len)) {
|
| 2625 |
|
|
kfree(new_firmware);
|
| 2626 |
|
|
rc = -EFAULT;
|
| 2627 |
|
|
break;
|
| 2628 |
|
|
}
|
| 2629 |
|
|
|
| 2630 |
|
|
kfree(priv->firmware);
|
| 2631 |
|
|
|
| 2632 |
|
|
priv->firmware = new_firmware;
|
| 2633 |
|
|
priv->firmware_length = com.len;
|
| 2634 |
|
|
strncpy(priv->firmware_id, com.id, 31);
|
| 2635 |
|
|
priv->firmware_id[31] = '\0';
|
| 2636 |
|
|
break;
|
| 2637 |
|
|
|
| 2638 |
|
|
case ATMELRD:
|
| 2639 |
|
|
if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) {
|
| 2640 |
|
|
rc = -EFAULT;
|
| 2641 |
|
|
break;
|
| 2642 |
|
|
}
|
| 2643 |
|
|
|
| 2644 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 2645 |
|
|
rc = -EPERM;
|
| 2646 |
|
|
break;
|
| 2647 |
|
|
}
|
| 2648 |
|
|
|
| 2649 |
|
|
domain[REGDOMAINSZ] = 0;
|
| 2650 |
|
|
rc = -EINVAL;
|
| 2651 |
|
|
for (i = 0; i < ARRAY_SIZE(channel_table); i++) {
|
| 2652 |
|
|
/* strcasecmp doesn't exist in the library */
|
| 2653 |
|
|
char *a = channel_table[i].name;
|
| 2654 |
|
|
char *b = domain;
|
| 2655 |
|
|
while (*a) {
|
| 2656 |
|
|
char c1 = *a++;
|
| 2657 |
|
|
char c2 = *b++;
|
| 2658 |
|
|
if (tolower(c1) != tolower(c2))
|
| 2659 |
|
|
break;
|
| 2660 |
|
|
}
|
| 2661 |
|
|
if (!*a && !*b) {
|
| 2662 |
|
|
priv->config_reg_domain = channel_table[i].reg_domain;
|
| 2663 |
|
|
rc = 0;
|
| 2664 |
|
|
}
|
| 2665 |
|
|
}
|
| 2666 |
|
|
|
| 2667 |
|
|
if (rc == 0 && priv->station_state != STATION_STATE_DOWN)
|
| 2668 |
|
|
rc = atmel_open(dev);
|
| 2669 |
|
|
break;
|
| 2670 |
|
|
|
| 2671 |
|
|
default:
|
| 2672 |
|
|
rc = -EOPNOTSUPP;
|
| 2673 |
|
|
}
|
| 2674 |
|
|
|
| 2675 |
|
|
return rc;
|
| 2676 |
|
|
}
|
| 2677 |
|
|
|
| 2678 |
|
|
struct auth_body {
|
| 2679 |
|
|
u16 alg;
|
| 2680 |
|
|
u16 trans_seq;
|
| 2681 |
|
|
u16 status;
|
| 2682 |
|
|
u8 el_id;
|
| 2683 |
|
|
u8 chall_text_len;
|
| 2684 |
|
|
u8 chall_text[253];
|
| 2685 |
|
|
};
|
| 2686 |
|
|
|
| 2687 |
|
|
static void atmel_enter_state(struct atmel_private *priv, int new_state)
|
| 2688 |
|
|
{
|
| 2689 |
|
|
int old_state = priv->station_state;
|
| 2690 |
|
|
|
| 2691 |
|
|
if (new_state == old_state)
|
| 2692 |
|
|
return;
|
| 2693 |
|
|
|
| 2694 |
|
|
priv->station_state = new_state;
|
| 2695 |
|
|
|
| 2696 |
|
|
if (new_state == STATION_STATE_READY) {
|
| 2697 |
|
|
netif_start_queue(priv->dev);
|
| 2698 |
|
|
netif_carrier_on(priv->dev);
|
| 2699 |
|
|
}
|
| 2700 |
|
|
|
| 2701 |
|
|
if (old_state == STATION_STATE_READY) {
|
| 2702 |
|
|
netif_carrier_off(priv->dev);
|
| 2703 |
|
|
if (netif_running(priv->dev))
|
| 2704 |
|
|
netif_stop_queue(priv->dev);
|
| 2705 |
|
|
priv->last_beacon_timestamp = 0;
|
| 2706 |
|
|
}
|
| 2707 |
|
|
}
|
| 2708 |
|
|
|
| 2709 |
|
|
static void atmel_scan(struct atmel_private *priv, int specific_ssid)
|
| 2710 |
|
|
{
|
| 2711 |
|
|
struct {
|
| 2712 |
|
|
u8 BSSID[6];
|
| 2713 |
|
|
u8 SSID[MAX_SSID_LENGTH];
|
| 2714 |
|
|
u8 scan_type;
|
| 2715 |
|
|
u8 channel;
|
| 2716 |
|
|
u16 BSS_type;
|
| 2717 |
|
|
u16 min_channel_time;
|
| 2718 |
|
|
u16 max_channel_time;
|
| 2719 |
|
|
u8 options;
|
| 2720 |
|
|
u8 SSID_size;
|
| 2721 |
|
|
} cmd;
|
| 2722 |
|
|
|
| 2723 |
|
|
memset(cmd.BSSID, 0xff, 6);
|
| 2724 |
|
|
|
| 2725 |
|
|
if (priv->fast_scan) {
|
| 2726 |
|
|
cmd.SSID_size = priv->SSID_size;
|
| 2727 |
|
|
memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
|
| 2728 |
|
|
cmd.min_channel_time = cpu_to_le16(10);
|
| 2729 |
|
|
cmd.max_channel_time = cpu_to_le16(50);
|
| 2730 |
|
|
} else {
|
| 2731 |
|
|
priv->BSS_list_entries = 0;
|
| 2732 |
|
|
cmd.SSID_size = 0;
|
| 2733 |
|
|
cmd.min_channel_time = cpu_to_le16(10);
|
| 2734 |
|
|
cmd.max_channel_time = cpu_to_le16(120);
|
| 2735 |
|
|
}
|
| 2736 |
|
|
|
| 2737 |
|
|
cmd.options = 0;
|
| 2738 |
|
|
|
| 2739 |
|
|
if (!specific_ssid)
|
| 2740 |
|
|
cmd.options |= SCAN_OPTIONS_SITE_SURVEY;
|
| 2741 |
|
|
|
| 2742 |
|
|
cmd.channel = (priv->channel & 0x7f);
|
| 2743 |
|
|
cmd.scan_type = SCAN_TYPE_ACTIVE;
|
| 2744 |
|
|
cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ?
|
| 2745 |
|
|
BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE);
|
| 2746 |
|
|
|
| 2747 |
|
|
atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd));
|
| 2748 |
|
|
|
| 2749 |
|
|
/* This must come after all hardware access to avoid being messed up
|
| 2750 |
|
|
by stuff happening in interrupt context after we leave STATE_DOWN */
|
| 2751 |
|
|
atmel_enter_state(priv, STATION_STATE_SCANNING);
|
| 2752 |
|
|
}
|
| 2753 |
|
|
|
| 2754 |
|
|
static void join(struct atmel_private *priv, int type)
|
| 2755 |
|
|
{
|
| 2756 |
|
|
struct {
|
| 2757 |
|
|
u8 BSSID[6];
|
| 2758 |
|
|
u8 SSID[MAX_SSID_LENGTH];
|
| 2759 |
|
|
u8 BSS_type; /* this is a short in a scan command - weird */
|
| 2760 |
|
|
u8 channel;
|
| 2761 |
|
|
u16 timeout;
|
| 2762 |
|
|
u8 SSID_size;
|
| 2763 |
|
|
u8 reserved;
|
| 2764 |
|
|
} cmd;
|
| 2765 |
|
|
|
| 2766 |
|
|
cmd.SSID_size = priv->SSID_size;
|
| 2767 |
|
|
memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
|
| 2768 |
|
|
memcpy(cmd.BSSID, priv->CurrentBSSID, 6);
|
| 2769 |
|
|
cmd.channel = (priv->channel & 0x7f);
|
| 2770 |
|
|
cmd.BSS_type = type;
|
| 2771 |
|
|
cmd.timeout = cpu_to_le16(2000);
|
| 2772 |
|
|
|
| 2773 |
|
|
atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd));
|
| 2774 |
|
|
}
|
| 2775 |
|
|
|
| 2776 |
|
|
static void start(struct atmel_private *priv, int type)
|
| 2777 |
|
|
{
|
| 2778 |
|
|
struct {
|
| 2779 |
|
|
u8 BSSID[6];
|
| 2780 |
|
|
u8 SSID[MAX_SSID_LENGTH];
|
| 2781 |
|
|
u8 BSS_type;
|
| 2782 |
|
|
u8 channel;
|
| 2783 |
|
|
u8 SSID_size;
|
| 2784 |
|
|
u8 reserved[3];
|
| 2785 |
|
|
} cmd;
|
| 2786 |
|
|
|
| 2787 |
|
|
cmd.SSID_size = priv->SSID_size;
|
| 2788 |
|
|
memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
|
| 2789 |
|
|
memcpy(cmd.BSSID, priv->BSSID, 6);
|
| 2790 |
|
|
cmd.BSS_type = type;
|
| 2791 |
|
|
cmd.channel = (priv->channel & 0x7f);
|
| 2792 |
|
|
|
| 2793 |
|
|
atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd));
|
| 2794 |
|
|
}
|
| 2795 |
|
|
|
| 2796 |
|
|
static void handle_beacon_probe(struct atmel_private *priv, u16 capability,
|
| 2797 |
|
|
u8 channel)
|
| 2798 |
|
|
{
|
| 2799 |
|
|
int rejoin = 0;
|
| 2800 |
|
|
int new = capability & MFIE_TYPE_POWER_CONSTRAINT ?
|
| 2801 |
|
|
SHORT_PREAMBLE : LONG_PREAMBLE;
|
| 2802 |
|
|
|
| 2803 |
|
|
if (priv->preamble != new) {
|
| 2804 |
|
|
priv->preamble = new;
|
| 2805 |
|
|
rejoin = 1;
|
| 2806 |
|
|
atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new);
|
| 2807 |
|
|
}
|
| 2808 |
|
|
|
| 2809 |
|
|
if (priv->channel != channel) {
|
| 2810 |
|
|
priv->channel = channel;
|
| 2811 |
|
|
rejoin = 1;
|
| 2812 |
|
|
atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel);
|
| 2813 |
|
|
}
|
| 2814 |
|
|
|
| 2815 |
|
|
if (rejoin) {
|
| 2816 |
|
|
priv->station_is_associated = 0;
|
| 2817 |
|
|
atmel_enter_state(priv, STATION_STATE_JOINNING);
|
| 2818 |
|
|
|
| 2819 |
|
|
if (priv->operating_mode == IW_MODE_INFRA)
|
| 2820 |
|
|
join(priv, BSS_TYPE_INFRASTRUCTURE);
|
| 2821 |
|
|
else
|
| 2822 |
|
|
join(priv, BSS_TYPE_AD_HOC);
|
| 2823 |
|
|
}
|
| 2824 |
|
|
}
|
| 2825 |
|
|
|
| 2826 |
|
|
static void send_authentication_request(struct atmel_private *priv, u16 system,
|
| 2827 |
|
|
u8 *challenge, int challenge_len)
|
| 2828 |
|
|
{
|
| 2829 |
|
|
struct ieee80211_hdr_4addr header;
|
| 2830 |
|
|
struct auth_body auth;
|
| 2831 |
|
|
|
| 2832 |
|
|
header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
|
| 2833 |
|
|
header.duration_id = cpu_to_le16(0x8000);
|
| 2834 |
|
|
header.seq_ctl = 0;
|
| 2835 |
|
|
memcpy(header.addr1, priv->CurrentBSSID, 6);
|
| 2836 |
|
|
memcpy(header.addr2, priv->dev->dev_addr, 6);
|
| 2837 |
|
|
memcpy(header.addr3, priv->CurrentBSSID, 6);
|
| 2838 |
|
|
|
| 2839 |
|
|
if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1)
|
| 2840 |
|
|
/* no WEP for authentication frames with TrSeqNo 1 */
|
| 2841 |
|
|
header.frame_ctl |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
|
| 2842 |
|
|
|
| 2843 |
|
|
auth.alg = cpu_to_le16(system);
|
| 2844 |
|
|
|
| 2845 |
|
|
auth.status = 0;
|
| 2846 |
|
|
auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum);
|
| 2847 |
|
|
priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1;
|
| 2848 |
|
|
priv->CurrentAuthentTransactionSeqNum += 2;
|
| 2849 |
|
|
|
| 2850 |
|
|
if (challenge_len != 0) {
|
| 2851 |
|
|
auth.el_id = 16; /* challenge_text */
|
| 2852 |
|
|
auth.chall_text_len = challenge_len;
|
| 2853 |
|
|
memcpy(auth.chall_text, challenge, challenge_len);
|
| 2854 |
|
|
atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len);
|
| 2855 |
|
|
} else {
|
| 2856 |
|
|
atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6);
|
| 2857 |
|
|
}
|
| 2858 |
|
|
}
|
| 2859 |
|
|
|
| 2860 |
|
|
static void send_association_request(struct atmel_private *priv, int is_reassoc)
|
| 2861 |
|
|
{
|
| 2862 |
|
|
u8 *ssid_el_p;
|
| 2863 |
|
|
int bodysize;
|
| 2864 |
|
|
struct ieee80211_hdr_4addr header;
|
| 2865 |
|
|
struct ass_req_format {
|
| 2866 |
|
|
u16 capability;
|
| 2867 |
|
|
u16 listen_interval;
|
| 2868 |
|
|
u8 ap[6]; /* nothing after here directly accessible */
|
| 2869 |
|
|
u8 ssid_el_id;
|
| 2870 |
|
|
u8 ssid_len;
|
| 2871 |
|
|
u8 ssid[MAX_SSID_LENGTH];
|
| 2872 |
|
|
u8 sup_rates_el_id;
|
| 2873 |
|
|
u8 sup_rates_len;
|
| 2874 |
|
|
u8 rates[4];
|
| 2875 |
|
|
} body;
|
| 2876 |
|
|
|
| 2877 |
|
|
header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT |
|
| 2878 |
|
|
(is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ));
|
| 2879 |
|
|
header.duration_id = cpu_to_le16(0x8000);
|
| 2880 |
|
|
header.seq_ctl = 0;
|
| 2881 |
|
|
|
| 2882 |
|
|
memcpy(header.addr1, priv->CurrentBSSID, 6);
|
| 2883 |
|
|
memcpy(header.addr2, priv->dev->dev_addr, 6);
|
| 2884 |
|
|
memcpy(header.addr3, priv->CurrentBSSID, 6);
|
| 2885 |
|
|
|
| 2886 |
|
|
body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
|
| 2887 |
|
|
if (priv->wep_is_on)
|
| 2888 |
|
|
body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
|
| 2889 |
|
|
if (priv->preamble == SHORT_PREAMBLE)
|
| 2890 |
|
|
body.capability |= cpu_to_le16(MFIE_TYPE_POWER_CONSTRAINT);
|
| 2891 |
|
|
|
| 2892 |
|
|
body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period);
|
| 2893 |
|
|
|
| 2894 |
|
|
/* current AP address - only in reassoc frame */
|
| 2895 |
|
|
if (is_reassoc) {
|
| 2896 |
|
|
memcpy(body.ap, priv->CurrentBSSID, 6);
|
| 2897 |
|
|
ssid_el_p = (u8 *)&body.ssid_el_id;
|
| 2898 |
|
|
bodysize = 18 + priv->SSID_size;
|
| 2899 |
|
|
} else {
|
| 2900 |
|
|
ssid_el_p = (u8 *)&body.ap[0];
|
| 2901 |
|
|
bodysize = 12 + priv->SSID_size;
|
| 2902 |
|
|
}
|
| 2903 |
|
|
|
| 2904 |
|
|
ssid_el_p[0] = MFIE_TYPE_SSID;
|
| 2905 |
|
|
ssid_el_p[1] = priv->SSID_size;
|
| 2906 |
|
|
memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size);
|
| 2907 |
|
|
ssid_el_p[2 + priv->SSID_size] = MFIE_TYPE_RATES;
|
| 2908 |
|
|
ssid_el_p[3 + priv->SSID_size] = 4; /* len of suported rates */
|
| 2909 |
|
|
memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4);
|
| 2910 |
|
|
|
| 2911 |
|
|
atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize);
|
| 2912 |
|
|
}
|
| 2913 |
|
|
|
| 2914 |
|
|
static int is_frame_from_current_bss(struct atmel_private *priv,
|
| 2915 |
|
|
struct ieee80211_hdr_4addr *header)
|
| 2916 |
|
|
{
|
| 2917 |
|
|
if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS)
|
| 2918 |
|
|
return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0;
|
| 2919 |
|
|
else
|
| 2920 |
|
|
return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0;
|
| 2921 |
|
|
}
|
| 2922 |
|
|
|
| 2923 |
|
|
static int retrieve_bss(struct atmel_private *priv)
|
| 2924 |
|
|
{
|
| 2925 |
|
|
int i;
|
| 2926 |
|
|
int max_rssi = -128;
|
| 2927 |
|
|
int max_index = -1;
|
| 2928 |
|
|
|
| 2929 |
|
|
if (priv->BSS_list_entries == 0)
|
| 2930 |
|
|
return -1;
|
| 2931 |
|
|
|
| 2932 |
|
|
if (priv->connect_to_any_BSS) {
|
| 2933 |
|
|
/* Select a BSS with the max-RSSI but of the same type and of
|
| 2934 |
|
|
the same WEP mode and that it is not marked as 'bad' (i.e.
|
| 2935 |
|
|
we had previously failed to connect to this BSS with the
|
| 2936 |
|
|
settings that we currently use) */
|
| 2937 |
|
|
priv->current_BSS = 0;
|
| 2938 |
|
|
for (i = 0; i < priv->BSS_list_entries; i++) {
|
| 2939 |
|
|
if (priv->operating_mode == priv->BSSinfo[i].BSStype &&
|
| 2940 |
|
|
((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) ||
|
| 2941 |
|
|
(priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) &&
|
| 2942 |
|
|
!(priv->BSSinfo[i].channel & 0x80)) {
|
| 2943 |
|
|
max_rssi = priv->BSSinfo[i].RSSI;
|
| 2944 |
|
|
priv->current_BSS = max_index = i;
|
| 2945 |
|
|
}
|
| 2946 |
|
|
}
|
| 2947 |
|
|
return max_index;
|
| 2948 |
|
|
}
|
| 2949 |
|
|
|
| 2950 |
|
|
for (i = 0; i < priv->BSS_list_entries; i++) {
|
| 2951 |
|
|
if (priv->SSID_size == priv->BSSinfo[i].SSIDsize &&
|
| 2952 |
|
|
memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 &&
|
| 2953 |
|
|
priv->operating_mode == priv->BSSinfo[i].BSStype &&
|
| 2954 |
|
|
atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) {
|
| 2955 |
|
|
if (priv->BSSinfo[i].RSSI >= max_rssi) {
|
| 2956 |
|
|
max_rssi = priv->BSSinfo[i].RSSI;
|
| 2957 |
|
|
max_index = i;
|
| 2958 |
|
|
}
|
| 2959 |
|
|
}
|
| 2960 |
|
|
}
|
| 2961 |
|
|
return max_index;
|
| 2962 |
|
|
}
|
| 2963 |
|
|
|
| 2964 |
|
|
static void store_bss_info(struct atmel_private *priv,
|
| 2965 |
|
|
struct ieee80211_hdr_4addr *header, u16 capability,
|
| 2966 |
|
|
u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len,
|
| 2967 |
|
|
u8 *ssid, int is_beacon)
|
| 2968 |
|
|
{
|
| 2969 |
|
|
u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3;
|
| 2970 |
|
|
int i, index;
|
| 2971 |
|
|
|
| 2972 |
|
|
for (index = -1, i = 0; i < priv->BSS_list_entries; i++)
|
| 2973 |
|
|
if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0)
|
| 2974 |
|
|
index = i;
|
| 2975 |
|
|
|
| 2976 |
|
|
/* If we process a probe and an entry from this BSS exists
|
| 2977 |
|
|
we will update the BSS entry with the info from this BSS.
|
| 2978 |
|
|
If we process a beacon we will only update RSSI */
|
| 2979 |
|
|
|
| 2980 |
|
|
if (index == -1) {
|
| 2981 |
|
|
if (priv->BSS_list_entries == MAX_BSS_ENTRIES)
|
| 2982 |
|
|
return;
|
| 2983 |
|
|
index = priv->BSS_list_entries++;
|
| 2984 |
|
|
memcpy(priv->BSSinfo[index].BSSID, bss, 6);
|
| 2985 |
|
|
priv->BSSinfo[index].RSSI = rssi;
|
| 2986 |
|
|
} else {
|
| 2987 |
|
|
if (rssi > priv->BSSinfo[index].RSSI)
|
| 2988 |
|
|
priv->BSSinfo[index].RSSI = rssi;
|
| 2989 |
|
|
if (is_beacon)
|
| 2990 |
|
|
return;
|
| 2991 |
|
|
}
|
| 2992 |
|
|
|
| 2993 |
|
|
priv->BSSinfo[index].channel = channel;
|
| 2994 |
|
|
priv->BSSinfo[index].beacon_period = beacon_period;
|
| 2995 |
|
|
priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY;
|
| 2996 |
|
|
memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len);
|
| 2997 |
|
|
priv->BSSinfo[index].SSIDsize = ssid_len;
|
| 2998 |
|
|
|
| 2999 |
|
|
if (capability & WLAN_CAPABILITY_IBSS)
|
| 3000 |
|
|
priv->BSSinfo[index].BSStype = IW_MODE_ADHOC;
|
| 3001 |
|
|
else if (capability & WLAN_CAPABILITY_ESS)
|
| 3002 |
|
|
priv->BSSinfo[index].BSStype =IW_MODE_INFRA;
|
| 3003 |
|
|
|
| 3004 |
|
|
priv->BSSinfo[index].preamble = capability & MFIE_TYPE_POWER_CONSTRAINT ?
|
| 3005 |
|
|
SHORT_PREAMBLE : LONG_PREAMBLE;
|
| 3006 |
|
|
}
|
| 3007 |
|
|
|
| 3008 |
|
|
static void authenticate(struct atmel_private *priv, u16 frame_len)
|
| 3009 |
|
|
{
|
| 3010 |
|
|
struct auth_body *auth = (struct auth_body *)priv->rx_buf;
|
| 3011 |
|
|
u16 status = le16_to_cpu(auth->status);
|
| 3012 |
|
|
u16 trans_seq_no = le16_to_cpu(auth->trans_seq);
|
| 3013 |
|
|
u16 system = le16_to_cpu(auth->alg);
|
| 3014 |
|
|
|
| 3015 |
|
|
if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) {
|
| 3016 |
|
|
/* no WEP */
|
| 3017 |
|
|
if (priv->station_was_associated) {
|
| 3018 |
|
|
atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
|
| 3019 |
|
|
send_association_request(priv, 1);
|
| 3020 |
|
|
return;
|
| 3021 |
|
|
} else {
|
| 3022 |
|
|
atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
|
| 3023 |
|
|
send_association_request(priv, 0);
|
| 3024 |
|
|
return;
|
| 3025 |
|
|
}
|
| 3026 |
|
|
}
|
| 3027 |
|
|
|
| 3028 |
|
|
if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) {
|
| 3029 |
|
|
int should_associate = 0;
|
| 3030 |
|
|
/* WEP */
|
| 3031 |
|
|
if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum)
|
| 3032 |
|
|
return;
|
| 3033 |
|
|
|
| 3034 |
|
|
if (system == WLAN_AUTH_OPEN) {
|
| 3035 |
|
|
if (trans_seq_no == 0x0002) {
|
| 3036 |
|
|
should_associate = 1;
|
| 3037 |
|
|
}
|
| 3038 |
|
|
} else if (system == WLAN_AUTH_SHARED_KEY) {
|
| 3039 |
|
|
if (trans_seq_no == 0x0002 &&
|
| 3040 |
|
|
auth->el_id == MFIE_TYPE_CHALLENGE) {
|
| 3041 |
|
|
send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len);
|
| 3042 |
|
|
return;
|
| 3043 |
|
|
} else if (trans_seq_no == 0x0004) {
|
| 3044 |
|
|
should_associate = 1;
|
| 3045 |
|
|
}
|
| 3046 |
|
|
}
|
| 3047 |
|
|
|
| 3048 |
|
|
if (should_associate) {
|
| 3049 |
|
|
if(priv->station_was_associated) {
|
| 3050 |
|
|
atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
|
| 3051 |
|
|
send_association_request(priv, 1);
|
| 3052 |
|
|
return;
|
| 3053 |
|
|
} else {
|
| 3054 |
|
|
atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
|
| 3055 |
|
|
send_association_request(priv, 0);
|
| 3056 |
|
|
return;
|
| 3057 |
|
|
}
|
| 3058 |
|
|
}
|
| 3059 |
|
|
}
|
| 3060 |
|
|
|
| 3061 |
|
|
if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
|
| 3062 |
|
|
/* Do opensystem first, then try sharedkey */
|
| 3063 |
|
|
if (system == WLAN_AUTH_OPEN) {
|
| 3064 |
|
|
priv->CurrentAuthentTransactionSeqNum = 0x001;
|
| 3065 |
|
|
priv->exclude_unencrypted = 1;
|
| 3066 |
|
|
send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0);
|
| 3067 |
|
|
return;
|
| 3068 |
|
|
} else if (priv->connect_to_any_BSS) {
|
| 3069 |
|
|
int bss_index;
|
| 3070 |
|
|
|
| 3071 |
|
|
priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
|
| 3072 |
|
|
|
| 3073 |
|
|
if ((bss_index = retrieve_bss(priv)) != -1) {
|
| 3074 |
|
|
atmel_join_bss(priv, bss_index);
|
| 3075 |
|
|
return;
|
| 3076 |
|
|
}
|
| 3077 |
|
|
}
|
| 3078 |
|
|
}
|
| 3079 |
|
|
|
| 3080 |
|
|
priv->AuthenticationRequestRetryCnt = 0;
|
| 3081 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 3082 |
|
|
priv->station_is_associated = 0;
|
| 3083 |
|
|
}
|
| 3084 |
|
|
|
| 3085 |
|
|
static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype)
|
| 3086 |
|
|
{
|
| 3087 |
|
|
struct ass_resp_format {
|
| 3088 |
|
|
u16 capability;
|
| 3089 |
|
|
u16 status;
|
| 3090 |
|
|
u16 ass_id;
|
| 3091 |
|
|
u8 el_id;
|
| 3092 |
|
|
u8 length;
|
| 3093 |
|
|
u8 rates[4];
|
| 3094 |
|
|
} *ass_resp = (struct ass_resp_format *)priv->rx_buf;
|
| 3095 |
|
|
|
| 3096 |
|
|
u16 status = le16_to_cpu(ass_resp->status);
|
| 3097 |
|
|
u16 ass_id = le16_to_cpu(ass_resp->ass_id);
|
| 3098 |
|
|
u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length;
|
| 3099 |
|
|
|
| 3100 |
|
|
union iwreq_data wrqu;
|
| 3101 |
|
|
|
| 3102 |
|
|
if (frame_len < 8 + rates_len)
|
| 3103 |
|
|
return;
|
| 3104 |
|
|
|
| 3105 |
|
|
if (status == WLAN_STATUS_SUCCESS) {
|
| 3106 |
|
|
if (subtype == IEEE80211_STYPE_ASSOC_RESP)
|
| 3107 |
|
|
priv->AssociationRequestRetryCnt = 0;
|
| 3108 |
|
|
else
|
| 3109 |
|
|
priv->ReAssociationRequestRetryCnt = 0;
|
| 3110 |
|
|
|
| 3111 |
|
|
atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
|
| 3112 |
|
|
MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff);
|
| 3113 |
|
|
atmel_set_mib(priv, Phy_Mib_Type,
|
| 3114 |
|
|
PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len);
|
| 3115 |
|
|
if (priv->power_mode == 0) {
|
| 3116 |
|
|
priv->listen_interval = 1;
|
| 3117 |
|
|
atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
|
| 3118 |
|
|
MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
|
| 3119 |
|
|
atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
|
| 3120 |
|
|
MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
|
| 3121 |
|
|
} else {
|
| 3122 |
|
|
priv->listen_interval = 2;
|
| 3123 |
|
|
atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
|
| 3124 |
|
|
MAC_MGMT_MIB_PS_MODE_POS, PS_MODE);
|
| 3125 |
|
|
atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
|
| 3126 |
|
|
MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2);
|
| 3127 |
|
|
}
|
| 3128 |
|
|
|
| 3129 |
|
|
priv->station_is_associated = 1;
|
| 3130 |
|
|
priv->station_was_associated = 1;
|
| 3131 |
|
|
atmel_enter_state(priv, STATION_STATE_READY);
|
| 3132 |
|
|
|
| 3133 |
|
|
/* Send association event to userspace */
|
| 3134 |
|
|
wrqu.data.length = 0;
|
| 3135 |
|
|
wrqu.data.flags = 0;
|
| 3136 |
|
|
memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN);
|
| 3137 |
|
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
|
| 3138 |
|
|
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
|
| 3139 |
|
|
|
| 3140 |
|
|
return;
|
| 3141 |
|
|
}
|
| 3142 |
|
|
|
| 3143 |
|
|
if (subtype == IEEE80211_STYPE_ASSOC_RESP &&
|
| 3144 |
|
|
status != WLAN_STATUS_ASSOC_DENIED_RATES &&
|
| 3145 |
|
|
status != WLAN_STATUS_CAPS_UNSUPPORTED &&
|
| 3146 |
|
|
priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
|
| 3147 |
|
|
mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
|
| 3148 |
|
|
priv->AssociationRequestRetryCnt++;
|
| 3149 |
|
|
send_association_request(priv, 0);
|
| 3150 |
|
|
return;
|
| 3151 |
|
|
}
|
| 3152 |
|
|
|
| 3153 |
|
|
if (subtype == IEEE80211_STYPE_REASSOC_RESP &&
|
| 3154 |
|
|
status != WLAN_STATUS_ASSOC_DENIED_RATES &&
|
| 3155 |
|
|
status != WLAN_STATUS_CAPS_UNSUPPORTED &&
|
| 3156 |
|
|
priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
|
| 3157 |
|
|
mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
|
| 3158 |
|
|
priv->ReAssociationRequestRetryCnt++;
|
| 3159 |
|
|
send_association_request(priv, 1);
|
| 3160 |
|
|
return;
|
| 3161 |
|
|
}
|
| 3162 |
|
|
|
| 3163 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 3164 |
|
|
priv->station_is_associated = 0;
|
| 3165 |
|
|
|
| 3166 |
|
|
if (priv->connect_to_any_BSS) {
|
| 3167 |
|
|
int bss_index;
|
| 3168 |
|
|
priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
|
| 3169 |
|
|
|
| 3170 |
|
|
if ((bss_index = retrieve_bss(priv)) != -1)
|
| 3171 |
|
|
atmel_join_bss(priv, bss_index);
|
| 3172 |
|
|
}
|
| 3173 |
|
|
}
|
| 3174 |
|
|
|
| 3175 |
|
|
void atmel_join_bss(struct atmel_private *priv, int bss_index)
|
| 3176 |
|
|
{
|
| 3177 |
|
|
struct bss_info *bss = &priv->BSSinfo[bss_index];
|
| 3178 |
|
|
|
| 3179 |
|
|
memcpy(priv->CurrentBSSID, bss->BSSID, 6);
|
| 3180 |
|
|
memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize);
|
| 3181 |
|
|
|
| 3182 |
|
|
/* The WPA stuff cares about the current AP address */
|
| 3183 |
|
|
if (priv->use_wpa)
|
| 3184 |
|
|
build_wpa_mib(priv);
|
| 3185 |
|
|
|
| 3186 |
|
|
/* When switching to AdHoc turn OFF Power Save if needed */
|
| 3187 |
|
|
|
| 3188 |
|
|
if (bss->BSStype == IW_MODE_ADHOC &&
|
| 3189 |
|
|
priv->operating_mode != IW_MODE_ADHOC &&
|
| 3190 |
|
|
priv->power_mode) {
|
| 3191 |
|
|
priv->power_mode = 0;
|
| 3192 |
|
|
priv->listen_interval = 1;
|
| 3193 |
|
|
atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
|
| 3194 |
|
|
MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
|
| 3195 |
|
|
atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
|
| 3196 |
|
|
MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
|
| 3197 |
|
|
}
|
| 3198 |
|
|
|
| 3199 |
|
|
priv->operating_mode = bss->BSStype;
|
| 3200 |
|
|
priv->channel = bss->channel & 0x7f;
|
| 3201 |
|
|
priv->beacon_period = bss->beacon_period;
|
| 3202 |
|
|
|
| 3203 |
|
|
if (priv->preamble != bss->preamble) {
|
| 3204 |
|
|
priv->preamble = bss->preamble;
|
| 3205 |
|
|
atmel_set_mib8(priv, Local_Mib_Type,
|
| 3206 |
|
|
LOCAL_MIB_PREAMBLE_TYPE, bss->preamble);
|
| 3207 |
|
|
}
|
| 3208 |
|
|
|
| 3209 |
|
|
if (!priv->wep_is_on && bss->UsingWEP) {
|
| 3210 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 3211 |
|
|
priv->station_is_associated = 0;
|
| 3212 |
|
|
return;
|
| 3213 |
|
|
}
|
| 3214 |
|
|
|
| 3215 |
|
|
if (priv->wep_is_on && !bss->UsingWEP) {
|
| 3216 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 3217 |
|
|
priv->station_is_associated = 0;
|
| 3218 |
|
|
return;
|
| 3219 |
|
|
}
|
| 3220 |
|
|
|
| 3221 |
|
|
atmel_enter_state(priv, STATION_STATE_JOINNING);
|
| 3222 |
|
|
|
| 3223 |
|
|
if (priv->operating_mode == IW_MODE_INFRA)
|
| 3224 |
|
|
join(priv, BSS_TYPE_INFRASTRUCTURE);
|
| 3225 |
|
|
else
|
| 3226 |
|
|
join(priv, BSS_TYPE_AD_HOC);
|
| 3227 |
|
|
}
|
| 3228 |
|
|
|
| 3229 |
|
|
static void restart_search(struct atmel_private *priv)
|
| 3230 |
|
|
{
|
| 3231 |
|
|
int bss_index;
|
| 3232 |
|
|
|
| 3233 |
|
|
if (!priv->connect_to_any_BSS) {
|
| 3234 |
|
|
atmel_scan(priv, 1);
|
| 3235 |
|
|
} else {
|
| 3236 |
|
|
priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
|
| 3237 |
|
|
|
| 3238 |
|
|
if ((bss_index = retrieve_bss(priv)) != -1)
|
| 3239 |
|
|
atmel_join_bss(priv, bss_index);
|
| 3240 |
|
|
else
|
| 3241 |
|
|
atmel_scan(priv, 0);
|
| 3242 |
|
|
}
|
| 3243 |
|
|
}
|
| 3244 |
|
|
|
| 3245 |
|
|
static void smooth_rssi(struct atmel_private *priv, u8 rssi)
|
| 3246 |
|
|
{
|
| 3247 |
|
|
u8 old = priv->wstats.qual.level;
|
| 3248 |
|
|
u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */
|
| 3249 |
|
|
|
| 3250 |
|
|
switch (priv->firmware_type) {
|
| 3251 |
|
|
case ATMEL_FW_TYPE_502E:
|
| 3252 |
|
|
max_rssi = 63; /* 502-rmfd-reve max by experiment */
|
| 3253 |
|
|
break;
|
| 3254 |
|
|
default:
|
| 3255 |
|
|
break;
|
| 3256 |
|
|
}
|
| 3257 |
|
|
|
| 3258 |
|
|
rssi = rssi * 100 / max_rssi;
|
| 3259 |
|
|
if ((rssi + old) % 2)
|
| 3260 |
|
|
priv->wstats.qual.level = (rssi + old) / 2 + 1;
|
| 3261 |
|
|
else
|
| 3262 |
|
|
priv->wstats.qual.level = (rssi + old) / 2;
|
| 3263 |
|
|
priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
|
| 3264 |
|
|
priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID;
|
| 3265 |
|
|
}
|
| 3266 |
|
|
|
| 3267 |
|
|
static void atmel_smooth_qual(struct atmel_private *priv)
|
| 3268 |
|
|
{
|
| 3269 |
|
|
unsigned long time_diff = (jiffies - priv->last_qual) / HZ;
|
| 3270 |
|
|
while (time_diff--) {
|
| 3271 |
|
|
priv->last_qual += HZ;
|
| 3272 |
|
|
priv->wstats.qual.qual = priv->wstats.qual.qual / 2;
|
| 3273 |
|
|
priv->wstats.qual.qual +=
|
| 3274 |
|
|
priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000;
|
| 3275 |
|
|
priv->beacons_this_sec = 0;
|
| 3276 |
|
|
}
|
| 3277 |
|
|
priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
|
| 3278 |
|
|
priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID;
|
| 3279 |
|
|
}
|
| 3280 |
|
|
|
| 3281 |
|
|
/* deals with incoming managment frames. */
|
| 3282 |
|
|
static void atmel_management_frame(struct atmel_private *priv,
|
| 3283 |
|
|
struct ieee80211_hdr_4addr *header,
|
| 3284 |
|
|
u16 frame_len, u8 rssi)
|
| 3285 |
|
|
{
|
| 3286 |
|
|
u16 subtype;
|
| 3287 |
|
|
|
| 3288 |
|
|
subtype = le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_STYPE;
|
| 3289 |
|
|
switch (subtype) {
|
| 3290 |
|
|
case IEEE80211_STYPE_BEACON:
|
| 3291 |
|
|
case IEEE80211_STYPE_PROBE_RESP:
|
| 3292 |
|
|
|
| 3293 |
|
|
/* beacon frame has multiple variable-length fields -
|
| 3294 |
|
|
never let an engineer loose with a data structure design. */
|
| 3295 |
|
|
{
|
| 3296 |
|
|
struct beacon_format {
|
| 3297 |
|
|
u64 timestamp;
|
| 3298 |
|
|
u16 interval;
|
| 3299 |
|
|
u16 capability;
|
| 3300 |
|
|
u8 ssid_el_id;
|
| 3301 |
|
|
u8 ssid_length;
|
| 3302 |
|
|
/* ssid here */
|
| 3303 |
|
|
u8 rates_el_id;
|
| 3304 |
|
|
u8 rates_length;
|
| 3305 |
|
|
/* rates here */
|
| 3306 |
|
|
u8 ds_el_id;
|
| 3307 |
|
|
u8 ds_length;
|
| 3308 |
|
|
/* ds here */
|
| 3309 |
|
|
} *beacon = (struct beacon_format *)priv->rx_buf;
|
| 3310 |
|
|
|
| 3311 |
|
|
u8 channel, rates_length, ssid_length;
|
| 3312 |
|
|
u64 timestamp = le64_to_cpu(beacon->timestamp);
|
| 3313 |
|
|
u16 beacon_interval = le16_to_cpu(beacon->interval);
|
| 3314 |
|
|
u16 capability = le16_to_cpu(beacon->capability);
|
| 3315 |
|
|
u8 *beaconp = priv->rx_buf;
|
| 3316 |
|
|
ssid_length = beacon->ssid_length;
|
| 3317 |
|
|
/* this blows chunks. */
|
| 3318 |
|
|
if (frame_len < 14 || frame_len < ssid_length + 15)
|
| 3319 |
|
|
return;
|
| 3320 |
|
|
rates_length = beaconp[beacon->ssid_length + 15];
|
| 3321 |
|
|
if (frame_len < ssid_length + rates_length + 18)
|
| 3322 |
|
|
return;
|
| 3323 |
|
|
if (ssid_length > MAX_SSID_LENGTH)
|
| 3324 |
|
|
return;
|
| 3325 |
|
|
channel = beaconp[ssid_length + rates_length + 18];
|
| 3326 |
|
|
|
| 3327 |
|
|
if (priv->station_state == STATION_STATE_READY) {
|
| 3328 |
|
|
smooth_rssi(priv, rssi);
|
| 3329 |
|
|
if (is_frame_from_current_bss(priv, header)) {
|
| 3330 |
|
|
priv->beacons_this_sec++;
|
| 3331 |
|
|
atmel_smooth_qual(priv);
|
| 3332 |
|
|
if (priv->last_beacon_timestamp) {
|
| 3333 |
|
|
/* Note truncate this to 32 bits - kernel can't divide a long long */
|
| 3334 |
|
|
u32 beacon_delay = timestamp - priv->last_beacon_timestamp;
|
| 3335 |
|
|
int beacons = beacon_delay / (beacon_interval * 1000);
|
| 3336 |
|
|
if (beacons > 1)
|
| 3337 |
|
|
priv->wstats.miss.beacon += beacons - 1;
|
| 3338 |
|
|
}
|
| 3339 |
|
|
priv->last_beacon_timestamp = timestamp;
|
| 3340 |
|
|
handle_beacon_probe(priv, capability, channel);
|
| 3341 |
|
|
}
|
| 3342 |
|
|
}
|
| 3343 |
|
|
|
| 3344 |
|
|
if (priv->station_state == STATION_STATE_SCANNING)
|
| 3345 |
|
|
store_bss_info(priv, header, capability,
|
| 3346 |
|
|
beacon_interval, channel, rssi,
|
| 3347 |
|
|
ssid_length,
|
| 3348 |
|
|
&beacon->rates_el_id,
|
| 3349 |
|
|
subtype == IEEE80211_STYPE_BEACON);
|
| 3350 |
|
|
}
|
| 3351 |
|
|
break;
|
| 3352 |
|
|
|
| 3353 |
|
|
case IEEE80211_STYPE_AUTH:
|
| 3354 |
|
|
|
| 3355 |
|
|
if (priv->station_state == STATION_STATE_AUTHENTICATING)
|
| 3356 |
|
|
authenticate(priv, frame_len);
|
| 3357 |
|
|
|
| 3358 |
|
|
break;
|
| 3359 |
|
|
|
| 3360 |
|
|
case IEEE80211_STYPE_ASSOC_RESP:
|
| 3361 |
|
|
case IEEE80211_STYPE_REASSOC_RESP:
|
| 3362 |
|
|
|
| 3363 |
|
|
if (priv->station_state == STATION_STATE_ASSOCIATING ||
|
| 3364 |
|
|
priv->station_state == STATION_STATE_REASSOCIATING)
|
| 3365 |
|
|
associate(priv, frame_len, subtype);
|
| 3366 |
|
|
|
| 3367 |
|
|
break;
|
| 3368 |
|
|
|
| 3369 |
|
|
case IEEE80211_STYPE_DISASSOC:
|
| 3370 |
|
|
if (priv->station_is_associated &&
|
| 3371 |
|
|
priv->operating_mode == IW_MODE_INFRA &&
|
| 3372 |
|
|
is_frame_from_current_bss(priv, header)) {
|
| 3373 |
|
|
priv->station_was_associated = 0;
|
| 3374 |
|
|
priv->station_is_associated = 0;
|
| 3375 |
|
|
|
| 3376 |
|
|
atmel_enter_state(priv, STATION_STATE_JOINNING);
|
| 3377 |
|
|
join(priv, BSS_TYPE_INFRASTRUCTURE);
|
| 3378 |
|
|
}
|
| 3379 |
|
|
|
| 3380 |
|
|
break;
|
| 3381 |
|
|
|
| 3382 |
|
|
case IEEE80211_STYPE_DEAUTH:
|
| 3383 |
|
|
if (priv->operating_mode == IW_MODE_INFRA &&
|
| 3384 |
|
|
is_frame_from_current_bss(priv, header)) {
|
| 3385 |
|
|
priv->station_was_associated = 0;
|
| 3386 |
|
|
|
| 3387 |
|
|
atmel_enter_state(priv, STATION_STATE_JOINNING);
|
| 3388 |
|
|
join(priv, BSS_TYPE_INFRASTRUCTURE);
|
| 3389 |
|
|
}
|
| 3390 |
|
|
|
| 3391 |
|
|
break;
|
| 3392 |
|
|
}
|
| 3393 |
|
|
}
|
| 3394 |
|
|
|
| 3395 |
|
|
/* run when timer expires */
|
| 3396 |
|
|
static void atmel_management_timer(u_long a)
|
| 3397 |
|
|
{
|
| 3398 |
|
|
struct net_device *dev = (struct net_device *) a;
|
| 3399 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 3400 |
|
|
unsigned long flags;
|
| 3401 |
|
|
|
| 3402 |
|
|
/* Check if the card has been yanked. */
|
| 3403 |
|
|
if (priv->card && priv->present_callback &&
|
| 3404 |
|
|
!(*priv->present_callback)(priv->card))
|
| 3405 |
|
|
return;
|
| 3406 |
|
|
|
| 3407 |
|
|
spin_lock_irqsave(&priv->irqlock, flags);
|
| 3408 |
|
|
|
| 3409 |
|
|
switch (priv->station_state) {
|
| 3410 |
|
|
|
| 3411 |
|
|
case STATION_STATE_AUTHENTICATING:
|
| 3412 |
|
|
if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) {
|
| 3413 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 3414 |
|
|
priv->station_is_associated = 0;
|
| 3415 |
|
|
priv->AuthenticationRequestRetryCnt = 0;
|
| 3416 |
|
|
restart_search(priv);
|
| 3417 |
|
|
} else {
|
| 3418 |
|
|
int auth = WLAN_AUTH_OPEN;
|
| 3419 |
|
|
priv->AuthenticationRequestRetryCnt++;
|
| 3420 |
|
|
priv->CurrentAuthentTransactionSeqNum = 0x0001;
|
| 3421 |
|
|
mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
|
| 3422 |
|
|
if (priv->wep_is_on && priv->exclude_unencrypted)
|
| 3423 |
|
|
auth = WLAN_AUTH_SHARED_KEY;
|
| 3424 |
|
|
send_authentication_request(priv, auth, NULL, 0);
|
| 3425 |
|
|
}
|
| 3426 |
|
|
break;
|
| 3427 |
|
|
|
| 3428 |
|
|
case STATION_STATE_ASSOCIATING:
|
| 3429 |
|
|
if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
|
| 3430 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 3431 |
|
|
priv->station_is_associated = 0;
|
| 3432 |
|
|
priv->AssociationRequestRetryCnt = 0;
|
| 3433 |
|
|
restart_search(priv);
|
| 3434 |
|
|
} else {
|
| 3435 |
|
|
priv->AssociationRequestRetryCnt++;
|
| 3436 |
|
|
mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
|
| 3437 |
|
|
send_association_request(priv, 0);
|
| 3438 |
|
|
}
|
| 3439 |
|
|
break;
|
| 3440 |
|
|
|
| 3441 |
|
|
case STATION_STATE_REASSOCIATING:
|
| 3442 |
|
|
if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
|
| 3443 |
|
|
atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
|
| 3444 |
|
|
priv->station_is_associated = 0;
|
| 3445 |
|
|
priv->ReAssociationRequestRetryCnt = 0;
|
| 3446 |
|
|
restart_search(priv);
|
| 3447 |
|
|
} else {
|
| 3448 |
|
|
priv->ReAssociationRequestRetryCnt++;
|
| 3449 |
|
|
mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
|
| 3450 |
|
|
send_association_request(priv, 1);
|
| 3451 |
|
|
}
|
| 3452 |
|
|
break;
|
| 3453 |
|
|
|
| 3454 |
|
|
default:
|
| 3455 |
|
|
break;
|
| 3456 |
|
|
}
|
| 3457 |
|
|
|
| 3458 |
|
|
spin_unlock_irqrestore(&priv->irqlock, flags);
|
| 3459 |
|
|
}
|
| 3460 |
|
|
|
| 3461 |
|
|
static void atmel_command_irq(struct atmel_private *priv)
|
| 3462 |
|
|
{
|
| 3463 |
|
|
u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
|
| 3464 |
|
|
u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET));
|
| 3465 |
|
|
int fast_scan;
|
| 3466 |
|
|
union iwreq_data wrqu;
|
| 3467 |
|
|
|
| 3468 |
|
|
if (status == CMD_STATUS_IDLE ||
|
| 3469 |
|
|
status == CMD_STATUS_IN_PROGRESS)
|
| 3470 |
|
|
return;
|
| 3471 |
|
|
|
| 3472 |
|
|
switch (command){
|
| 3473 |
|
|
|
| 3474 |
|
|
case CMD_Start:
|
| 3475 |
|
|
if (status == CMD_STATUS_COMPLETE) {
|
| 3476 |
|
|
priv->station_was_associated = priv->station_is_associated;
|
| 3477 |
|
|
atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
|
| 3478 |
|
|
(u8 *)priv->CurrentBSSID, 6);
|
| 3479 |
|
|
atmel_enter_state(priv, STATION_STATE_READY);
|
| 3480 |
|
|
}
|
| 3481 |
|
|
break;
|
| 3482 |
|
|
|
| 3483 |
|
|
case CMD_Scan:
|
| 3484 |
|
|
fast_scan = priv->fast_scan;
|
| 3485 |
|
|
priv->fast_scan = 0;
|
| 3486 |
|
|
|
| 3487 |
|
|
if (status != CMD_STATUS_COMPLETE) {
|
| 3488 |
|
|
atmel_scan(priv, 1);
|
| 3489 |
|
|
} else {
|
| 3490 |
|
|
int bss_index = retrieve_bss(priv);
|
| 3491 |
|
|
int notify_scan_complete = 1;
|
| 3492 |
|
|
if (bss_index != -1) {
|
| 3493 |
|
|
atmel_join_bss(priv, bss_index);
|
| 3494 |
|
|
} else if (priv->operating_mode == IW_MODE_ADHOC &&
|
| 3495 |
|
|
priv->SSID_size != 0) {
|
| 3496 |
|
|
start(priv, BSS_TYPE_AD_HOC);
|
| 3497 |
|
|
} else {
|
| 3498 |
|
|
priv->fast_scan = !fast_scan;
|
| 3499 |
|
|
atmel_scan(priv, 1);
|
| 3500 |
|
|
notify_scan_complete = 0;
|
| 3501 |
|
|
}
|
| 3502 |
|
|
priv->site_survey_state = SITE_SURVEY_COMPLETED;
|
| 3503 |
|
|
if (notify_scan_complete) {
|
| 3504 |
|
|
wrqu.data.length = 0;
|
| 3505 |
|
|
wrqu.data.flags = 0;
|
| 3506 |
|
|
wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
|
| 3507 |
|
|
}
|
| 3508 |
|
|
}
|
| 3509 |
|
|
break;
|
| 3510 |
|
|
|
| 3511 |
|
|
case CMD_SiteSurvey:
|
| 3512 |
|
|
priv->fast_scan = 0;
|
| 3513 |
|
|
|
| 3514 |
|
|
if (status != CMD_STATUS_COMPLETE)
|
| 3515 |
|
|
return;
|
| 3516 |
|
|
|
| 3517 |
|
|
priv->site_survey_state = SITE_SURVEY_COMPLETED;
|
| 3518 |
|
|
if (priv->station_is_associated) {
|
| 3519 |
|
|
atmel_enter_state(priv, STATION_STATE_READY);
|
| 3520 |
|
|
wrqu.data.length = 0;
|
| 3521 |
|
|
wrqu.data.flags = 0;
|
| 3522 |
|
|
wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
|
| 3523 |
|
|
} else {
|
| 3524 |
|
|
atmel_scan(priv, 1);
|
| 3525 |
|
|
}
|
| 3526 |
|
|
break;
|
| 3527 |
|
|
|
| 3528 |
|
|
case CMD_Join:
|
| 3529 |
|
|
if (status == CMD_STATUS_COMPLETE) {
|
| 3530 |
|
|
if (priv->operating_mode == IW_MODE_ADHOC) {
|
| 3531 |
|
|
priv->station_was_associated = priv->station_is_associated;
|
| 3532 |
|
|
atmel_enter_state(priv, STATION_STATE_READY);
|
| 3533 |
|
|
} else {
|
| 3534 |
|
|
int auth = WLAN_AUTH_OPEN;
|
| 3535 |
|
|
priv->AuthenticationRequestRetryCnt = 0;
|
| 3536 |
|
|
atmel_enter_state(priv, STATION_STATE_AUTHENTICATING);
|
| 3537 |
|
|
|
| 3538 |
|
|
mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
|
| 3539 |
|
|
priv->CurrentAuthentTransactionSeqNum = 0x0001;
|
| 3540 |
|
|
if (priv->wep_is_on && priv->exclude_unencrypted)
|
| 3541 |
|
|
auth = WLAN_AUTH_SHARED_KEY;
|
| 3542 |
|
|
send_authentication_request(priv, auth, NULL, 0);
|
| 3543 |
|
|
}
|
| 3544 |
|
|
return;
|
| 3545 |
|
|
}
|
| 3546 |
|
|
|
| 3547 |
|
|
atmel_scan(priv, 1);
|
| 3548 |
|
|
}
|
| 3549 |
|
|
}
|
| 3550 |
|
|
|
| 3551 |
|
|
static int atmel_wakeup_firmware(struct atmel_private *priv)
|
| 3552 |
|
|
{
|
| 3553 |
|
|
struct host_info_struct *iface = &priv->host_info;
|
| 3554 |
|
|
u16 mr1, mr3;
|
| 3555 |
|
|
int i;
|
| 3556 |
|
|
|
| 3557 |
|
|
if (priv->card_type == CARD_TYPE_SPI_FLASH)
|
| 3558 |
|
|
atmel_set_gcr(priv->dev, GCR_REMAP);
|
| 3559 |
|
|
|
| 3560 |
|
|
/* wake up on-board processor */
|
| 3561 |
|
|
atmel_clear_gcr(priv->dev, 0x0040);
|
| 3562 |
|
|
atmel_write16(priv->dev, BSR, BSS_SRAM);
|
| 3563 |
|
|
|
| 3564 |
|
|
if (priv->card_type == CARD_TYPE_SPI_FLASH)
|
| 3565 |
|
|
mdelay(100);
|
| 3566 |
|
|
|
| 3567 |
|
|
/* and wait for it */
|
| 3568 |
|
|
for (i = LOOP_RETRY_LIMIT; i; i--) {
|
| 3569 |
|
|
mr1 = atmel_read16(priv->dev, MR1);
|
| 3570 |
|
|
mr3 = atmel_read16(priv->dev, MR3);
|
| 3571 |
|
|
|
| 3572 |
|
|
if (mr3 & MAC_BOOT_COMPLETE)
|
| 3573 |
|
|
break;
|
| 3574 |
|
|
if (mr1 & MAC_BOOT_COMPLETE &&
|
| 3575 |
|
|
priv->bus_type == BUS_TYPE_PCCARD)
|
| 3576 |
|
|
break;
|
| 3577 |
|
|
}
|
| 3578 |
|
|
|
| 3579 |
|
|
if (i == 0) {
|
| 3580 |
|
|
printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name);
|
| 3581 |
|
|
return 0;
|
| 3582 |
|
|
}
|
| 3583 |
|
|
|
| 3584 |
|
|
if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) {
|
| 3585 |
|
|
printk(KERN_ALERT "%s: card missing.\n", priv->dev->name);
|
| 3586 |
|
|
return 0;
|
| 3587 |
|
|
}
|
| 3588 |
|
|
|
| 3589 |
|
|
/* now check for completion of MAC initialization through
|
| 3590 |
|
|
the FunCtrl field of the IFACE, poll MR1 to detect completion of
|
| 3591 |
|
|
MAC initialization, check completion status, set interrupt mask,
|
| 3592 |
|
|
enables interrupts and calls Tx and Rx initialization functions */
|
| 3593 |
|
|
|
| 3594 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE);
|
| 3595 |
|
|
|
| 3596 |
|
|
for (i = LOOP_RETRY_LIMIT; i; i--) {
|
| 3597 |
|
|
mr1 = atmel_read16(priv->dev, MR1);
|
| 3598 |
|
|
mr3 = atmel_read16(priv->dev, MR3);
|
| 3599 |
|
|
|
| 3600 |
|
|
if (mr3 & MAC_INIT_COMPLETE)
|
| 3601 |
|
|
break;
|
| 3602 |
|
|
if (mr1 & MAC_INIT_COMPLETE &&
|
| 3603 |
|
|
priv->bus_type == BUS_TYPE_PCCARD)
|
| 3604 |
|
|
break;
|
| 3605 |
|
|
}
|
| 3606 |
|
|
|
| 3607 |
|
|
if (i == 0) {
|
| 3608 |
|
|
printk(KERN_ALERT "%s: MAC failed to initialise.\n",
|
| 3609 |
|
|
priv->dev->name);
|
| 3610 |
|
|
return 0;
|
| 3611 |
|
|
}
|
| 3612 |
|
|
|
| 3613 |
|
|
/* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */
|
| 3614 |
|
|
if ((mr3 & MAC_INIT_COMPLETE) &&
|
| 3615 |
|
|
!(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) {
|
| 3616 |
|
|
printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name);
|
| 3617 |
|
|
return 0;
|
| 3618 |
|
|
}
|
| 3619 |
|
|
if ((mr1 & MAC_INIT_COMPLETE) &&
|
| 3620 |
|
|
!(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) {
|
| 3621 |
|
|
printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name);
|
| 3622 |
|
|
return 0;
|
| 3623 |
|
|
}
|
| 3624 |
|
|
|
| 3625 |
|
|
atmel_copy_to_host(priv->dev, (unsigned char *)iface,
|
| 3626 |
|
|
priv->host_info_base, sizeof(*iface));
|
| 3627 |
|
|
|
| 3628 |
|
|
iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos);
|
| 3629 |
|
|
iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size);
|
| 3630 |
|
|
iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos);
|
| 3631 |
|
|
iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count);
|
| 3632 |
|
|
iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos);
|
| 3633 |
|
|
iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size);
|
| 3634 |
|
|
iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos);
|
| 3635 |
|
|
iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count);
|
| 3636 |
|
|
iface->build_version = le16_to_cpu(iface->build_version);
|
| 3637 |
|
|
iface->command_pos = le16_to_cpu(iface->command_pos);
|
| 3638 |
|
|
iface->major_version = le16_to_cpu(iface->major_version);
|
| 3639 |
|
|
iface->minor_version = le16_to_cpu(iface->minor_version);
|
| 3640 |
|
|
iface->func_ctrl = le16_to_cpu(iface->func_ctrl);
|
| 3641 |
|
|
iface->mac_status = le16_to_cpu(iface->mac_status);
|
| 3642 |
|
|
|
| 3643 |
|
|
return 1;
|
| 3644 |
|
|
}
|
| 3645 |
|
|
|
| 3646 |
|
|
/* determine type of memory and MAC address */
|
| 3647 |
|
|
static int probe_atmel_card(struct net_device *dev)
|
| 3648 |
|
|
{
|
| 3649 |
|
|
int rc = 0;
|
| 3650 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 3651 |
|
|
|
| 3652 |
|
|
/* reset pccard */
|
| 3653 |
|
|
if (priv->bus_type == BUS_TYPE_PCCARD)
|
| 3654 |
|
|
atmel_write16(dev, GCR, 0x0060);
|
| 3655 |
|
|
|
| 3656 |
|
|
atmel_write16(dev, GCR, 0x0040);
|
| 3657 |
|
|
mdelay(500);
|
| 3658 |
|
|
|
| 3659 |
|
|
if (atmel_read16(dev, MR2) == 0) {
|
| 3660 |
|
|
/* No stored firmware so load a small stub which just
|
| 3661 |
|
|
tells us the MAC address */
|
| 3662 |
|
|
int i;
|
| 3663 |
|
|
priv->card_type = CARD_TYPE_EEPROM;
|
| 3664 |
|
|
atmel_write16(dev, BSR, BSS_IRAM);
|
| 3665 |
|
|
atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader));
|
| 3666 |
|
|
atmel_set_gcr(dev, GCR_REMAP);
|
| 3667 |
|
|
atmel_clear_gcr(priv->dev, 0x0040);
|
| 3668 |
|
|
atmel_write16(dev, BSR, BSS_SRAM);
|
| 3669 |
|
|
for (i = LOOP_RETRY_LIMIT; i; i--)
|
| 3670 |
|
|
if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE)
|
| 3671 |
|
|
break;
|
| 3672 |
|
|
if (i == 0) {
|
| 3673 |
|
|
printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name);
|
| 3674 |
|
|
} else {
|
| 3675 |
|
|
atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6);
|
| 3676 |
|
|
/* got address, now squash it again until the network
|
| 3677 |
|
|
interface is opened */
|
| 3678 |
|
|
if (priv->bus_type == BUS_TYPE_PCCARD)
|
| 3679 |
|
|
atmel_write16(dev, GCR, 0x0060);
|
| 3680 |
|
|
atmel_write16(dev, GCR, 0x0040);
|
| 3681 |
|
|
rc = 1;
|
| 3682 |
|
|
}
|
| 3683 |
|
|
} else if (atmel_read16(dev, MR4) == 0) {
|
| 3684 |
|
|
/* Mac address easy in this case. */
|
| 3685 |
|
|
priv->card_type = CARD_TYPE_PARALLEL_FLASH;
|
| 3686 |
|
|
atmel_write16(dev, BSR, 1);
|
| 3687 |
|
|
atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6);
|
| 3688 |
|
|
atmel_write16(dev, BSR, 0x200);
|
| 3689 |
|
|
rc = 1;
|
| 3690 |
|
|
} else {
|
| 3691 |
|
|
/* Standard firmware in flash, boot it up and ask
|
| 3692 |
|
|
for the Mac Address */
|
| 3693 |
|
|
priv->card_type = CARD_TYPE_SPI_FLASH;
|
| 3694 |
|
|
if (atmel_wakeup_firmware(priv)) {
|
| 3695 |
|
|
atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6);
|
| 3696 |
|
|
|
| 3697 |
|
|
/* got address, now squash it again until the network
|
| 3698 |
|
|
interface is opened */
|
| 3699 |
|
|
if (priv->bus_type == BUS_TYPE_PCCARD)
|
| 3700 |
|
|
atmel_write16(dev, GCR, 0x0060);
|
| 3701 |
|
|
atmel_write16(dev, GCR, 0x0040);
|
| 3702 |
|
|
rc = 1;
|
| 3703 |
|
|
}
|
| 3704 |
|
|
}
|
| 3705 |
|
|
|
| 3706 |
|
|
if (rc) {
|
| 3707 |
|
|
if (dev->dev_addr[0] == 0xFF) {
|
| 3708 |
|
|
u8 default_mac[] = {0x00,0x04, 0x25, 0x00, 0x00, 0x00};
|
| 3709 |
|
|
printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name);
|
| 3710 |
|
|
memcpy(dev->dev_addr, default_mac, 6);
|
| 3711 |
|
|
}
|
| 3712 |
|
|
}
|
| 3713 |
|
|
|
| 3714 |
|
|
return rc;
|
| 3715 |
|
|
}
|
| 3716 |
|
|
|
| 3717 |
|
|
/* Move the encyption information on the MIB structure.
|
| 3718 |
|
|
This routine is for the pre-WPA firmware: later firmware has
|
| 3719 |
|
|
a different format MIB and a different routine. */
|
| 3720 |
|
|
static void build_wep_mib(struct atmel_private *priv)
|
| 3721 |
|
|
{
|
| 3722 |
|
|
struct { /* NB this is matched to the hardware, don't change. */
|
| 3723 |
|
|
u8 wep_is_on;
|
| 3724 |
|
|
u8 default_key; /* 0..3 */
|
| 3725 |
|
|
u8 reserved;
|
| 3726 |
|
|
u8 exclude_unencrypted;
|
| 3727 |
|
|
|
| 3728 |
|
|
u32 WEPICV_error_count;
|
| 3729 |
|
|
u32 WEP_excluded_count;
|
| 3730 |
|
|
|
| 3731 |
|
|
u8 wep_keys[MAX_ENCRYPTION_KEYS][13];
|
| 3732 |
|
|
u8 encryption_level; /* 0, 1, 2 */
|
| 3733 |
|
|
u8 reserved2[3];
|
| 3734 |
|
|
} mib;
|
| 3735 |
|
|
int i;
|
| 3736 |
|
|
|
| 3737 |
|
|
mib.wep_is_on = priv->wep_is_on;
|
| 3738 |
|
|
if (priv->wep_is_on) {
|
| 3739 |
|
|
if (priv->wep_key_len[priv->default_key] > 5)
|
| 3740 |
|
|
mib.encryption_level = 2;
|
| 3741 |
|
|
else
|
| 3742 |
|
|
mib.encryption_level = 1;
|
| 3743 |
|
|
} else {
|
| 3744 |
|
|
mib.encryption_level = 0;
|
| 3745 |
|
|
}
|
| 3746 |
|
|
|
| 3747 |
|
|
mib.default_key = priv->default_key;
|
| 3748 |
|
|
mib.exclude_unencrypted = priv->exclude_unencrypted;
|
| 3749 |
|
|
|
| 3750 |
|
|
for (i = 0; i < MAX_ENCRYPTION_KEYS; i++)
|
| 3751 |
|
|
memcpy(mib.wep_keys[i], priv->wep_keys[i], 13);
|
| 3752 |
|
|
|
| 3753 |
|
|
atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
|
| 3754 |
|
|
}
|
| 3755 |
|
|
|
| 3756 |
|
|
static void build_wpa_mib(struct atmel_private *priv)
|
| 3757 |
|
|
{
|
| 3758 |
|
|
/* This is for the later (WPA enabled) firmware. */
|
| 3759 |
|
|
|
| 3760 |
|
|
struct { /* NB this is matched to the hardware, don't change. */
|
| 3761 |
|
|
u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
|
| 3762 |
|
|
u8 receiver_address[6];
|
| 3763 |
|
|
u8 wep_is_on;
|
| 3764 |
|
|
u8 default_key; /* 0..3 */
|
| 3765 |
|
|
u8 group_key;
|
| 3766 |
|
|
u8 exclude_unencrypted;
|
| 3767 |
|
|
u8 encryption_type;
|
| 3768 |
|
|
u8 reserved;
|
| 3769 |
|
|
|
| 3770 |
|
|
u32 WEPICV_error_count;
|
| 3771 |
|
|
u32 WEP_excluded_count;
|
| 3772 |
|
|
|
| 3773 |
|
|
u8 key_RSC[4][8];
|
| 3774 |
|
|
} mib;
|
| 3775 |
|
|
|
| 3776 |
|
|
int i;
|
| 3777 |
|
|
|
| 3778 |
|
|
mib.wep_is_on = priv->wep_is_on;
|
| 3779 |
|
|
mib.exclude_unencrypted = priv->exclude_unencrypted;
|
| 3780 |
|
|
memcpy(mib.receiver_address, priv->CurrentBSSID, 6);
|
| 3781 |
|
|
|
| 3782 |
|
|
/* zero all the keys before adding in valid ones. */
|
| 3783 |
|
|
memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value));
|
| 3784 |
|
|
|
| 3785 |
|
|
if (priv->wep_is_on) {
|
| 3786 |
|
|
/* There's a comment in the Atmel code to the effect that this
|
| 3787 |
|
|
is only valid when still using WEP, it may need to be set to
|
| 3788 |
|
|
something to use WPA */
|
| 3789 |
|
|
memset(mib.key_RSC, 0, sizeof(mib.key_RSC));
|
| 3790 |
|
|
|
| 3791 |
|
|
mib.default_key = mib.group_key = 255;
|
| 3792 |
|
|
for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) {
|
| 3793 |
|
|
if (priv->wep_key_len[i] > 0) {
|
| 3794 |
|
|
memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE);
|
| 3795 |
|
|
if (i == priv->default_key) {
|
| 3796 |
|
|
mib.default_key = i;
|
| 3797 |
|
|
mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7;
|
| 3798 |
|
|
mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite;
|
| 3799 |
|
|
} else {
|
| 3800 |
|
|
mib.group_key = i;
|
| 3801 |
|
|
priv->group_cipher_suite = priv->pairwise_cipher_suite;
|
| 3802 |
|
|
mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1;
|
| 3803 |
|
|
mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite;
|
| 3804 |
|
|
}
|
| 3805 |
|
|
}
|
| 3806 |
|
|
}
|
| 3807 |
|
|
if (mib.default_key == 255)
|
| 3808 |
|
|
mib.default_key = mib.group_key != 255 ? mib.group_key : 0;
|
| 3809 |
|
|
if (mib.group_key == 255)
|
| 3810 |
|
|
mib.group_key = mib.default_key;
|
| 3811 |
|
|
|
| 3812 |
|
|
}
|
| 3813 |
|
|
|
| 3814 |
|
|
atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
|
| 3815 |
|
|
}
|
| 3816 |
|
|
|
| 3817 |
|
|
static int reset_atmel_card(struct net_device *dev)
|
| 3818 |
|
|
{
|
| 3819 |
|
|
/* do everything necessary to wake up the hardware, including
|
| 3820 |
|
|
waiting for the lightning strike and throwing the knife switch....
|
| 3821 |
|
|
|
| 3822 |
|
|
set all the Mib values which matter in the card to match
|
| 3823 |
|
|
their settings in the atmel_private structure. Some of these
|
| 3824 |
|
|
can be altered on the fly, but many (WEP, infrastucture or ad-hoc)
|
| 3825 |
|
|
can only be changed by tearing down the world and coming back through
|
| 3826 |
|
|
here.
|
| 3827 |
|
|
|
| 3828 |
|
|
This routine is also responsible for initialising some
|
| 3829 |
|
|
hardware-specific fields in the atmel_private structure,
|
| 3830 |
|
|
including a copy of the firmware's hostinfo stucture
|
| 3831 |
|
|
which is the route into the rest of the firmare datastructures. */
|
| 3832 |
|
|
|
| 3833 |
|
|
struct atmel_private *priv = netdev_priv(dev);
|
| 3834 |
|
|
u8 configuration;
|
| 3835 |
|
|
int old_state = priv->station_state;
|
| 3836 |
|
|
|
| 3837 |
|
|
/* data to add to the firmware names, in priority order
|
| 3838 |
|
|
this implemenents firmware versioning */
|
| 3839 |
|
|
|
| 3840 |
|
|
static char *firmware_modifier[] = {
|
| 3841 |
|
|
"-wpa",
|
| 3842 |
|
|
"",
|
| 3843 |
|
|
NULL
|
| 3844 |
|
|
};
|
| 3845 |
|
|
|
| 3846 |
|
|
/* reset pccard */
|
| 3847 |
|
|
if (priv->bus_type == BUS_TYPE_PCCARD)
|
| 3848 |
|
|
atmel_write16(priv->dev, GCR, 0x0060);
|
| 3849 |
|
|
|
| 3850 |
|
|
/* stop card , disable interrupts */
|
| 3851 |
|
|
atmel_write16(priv->dev, GCR, 0x0040);
|
| 3852 |
|
|
|
| 3853 |
|
|
if (priv->card_type == CARD_TYPE_EEPROM) {
|
| 3854 |
|
|
/* copy in firmware if needed */
|
| 3855 |
|
|
const struct firmware *fw_entry = NULL;
|
| 3856 |
|
|
unsigned char *fw;
|
| 3857 |
|
|
int len = priv->firmware_length;
|
| 3858 |
|
|
if (!(fw = priv->firmware)) {
|
| 3859 |
|
|
if (priv->firmware_type == ATMEL_FW_TYPE_NONE) {
|
| 3860 |
|
|
if (strlen(priv->firmware_id) == 0) {
|
| 3861 |
|
|
printk(KERN_INFO
|
| 3862 |
|
|
"%s: card type is unknown: assuming at76c502 firmware is OK.\n",
|
| 3863 |
|
|
dev->name);
|
| 3864 |
|
|
printk(KERN_INFO
|
| 3865 |
|
|
"%s: if not, use the firmware= module parameter.\n",
|
| 3866 |
|
|
dev->name);
|
| 3867 |
|
|
strcpy(priv->firmware_id, "atmel_at76c502.bin");
|
| 3868 |
|
|
}
|
| 3869 |
|
|
if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) != 0) {
|
| 3870 |
|
|
printk(KERN_ALERT
|
| 3871 |
|
|
"%s: firmware %s is missing, cannot continue.\n",
|
| 3872 |
|
|
dev->name, priv->firmware_id);
|
| 3873 |
|
|
return 0;
|
| 3874 |
|
|
}
|
| 3875 |
|
|
} else {
|
| 3876 |
|
|
int fw_index = 0;
|
| 3877 |
|
|
int success = 0;
|
| 3878 |
|
|
|
| 3879 |
|
|
/* get firmware filename entry based on firmware type ID */
|
| 3880 |
|
|
while (fw_table[fw_index].fw_type != priv->firmware_type
|
| 3881 |
|
|
&& fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE)
|
| 3882 |
|
|
fw_index++;
|
| 3883 |
|
|
|
| 3884 |
|
|
/* construct the actual firmware file name */
|
| 3885 |
|
|
if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) {
|
| 3886 |
|
|
int i;
|
| 3887 |
|
|
for (i = 0; firmware_modifier[i]; i++) {
|
| 3888 |
|
|
snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file,
|
| 3889 |
|
|
firmware_modifier[i], fw_table[fw_index].fw_file_ext);
|
| 3890 |
|
|
priv->firmware_id[31] = '\0';
|
| 3891 |
|
|
if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) {
|
| 3892 |
|
|
success = 1;
|
| 3893 |
|
|
break;
|
| 3894 |
|
|
}
|
| 3895 |
|
|
}
|
| 3896 |
|
|
}
|
| 3897 |
|
|
if (!success) {
|
| 3898 |
|
|
printk(KERN_ALERT
|
| 3899 |
|
|
"%s: firmware %s is missing, cannot start.\n",
|
| 3900 |
|
|
dev->name, priv->firmware_id);
|
| 3901 |
|
|
priv->firmware_id[0] = '\0';
|
| 3902 |
|
|
return 0;
|
| 3903 |
|
|
}
|
| 3904 |
|
|
}
|
| 3905 |
|
|
|
| 3906 |
|
|
fw = fw_entry->data;
|
| 3907 |
|
|
len = fw_entry->size;
|
| 3908 |
|
|
}
|
| 3909 |
|
|
|
| 3910 |
|
|
if (len <= 0x6000) {
|
| 3911 |
|
|
atmel_write16(priv->dev, BSR, BSS_IRAM);
|
| 3912 |
|
|
atmel_copy_to_card(priv->dev, 0, fw, len);
|
| 3913 |
|
|
atmel_set_gcr(priv->dev, GCR_REMAP);
|
| 3914 |
|
|
} else {
|
| 3915 |
|
|
/* Remap */
|
| 3916 |
|
|
atmel_set_gcr(priv->dev, GCR_REMAP);
|
| 3917 |
|
|
atmel_write16(priv->dev, BSR, BSS_IRAM);
|
| 3918 |
|
|
atmel_copy_to_card(priv->dev, 0, fw, 0x6000);
|
| 3919 |
|
|
atmel_write16(priv->dev, BSR, 0x2ff);
|
| 3920 |
|
|
atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000);
|
| 3921 |
|
|
}
|
| 3922 |
|
|
|
| 3923 |
|
|
if (fw_entry)
|
| 3924 |
|
|
release_firmware(fw_entry);
|
| 3925 |
|
|
}
|
| 3926 |
|
|
|
| 3927 |
|
|
if (!atmel_wakeup_firmware(priv))
|
| 3928 |
|
|
return 0;
|
| 3929 |
|
|
|
| 3930 |
|
|
/* Check the version and set the correct flag for wpa stuff,
|
| 3931 |
|
|
old and new firmware is incompatible.
|
| 3932 |
|
|
The pre-wpa 3com firmware reports major version 5,
|
| 3933 |
|
|
the wpa 3com firmware is major version 4 and doesn't need
|
| 3934 |
|
|
the 3com broken-ness filter. */
|
| 3935 |
|
|
priv->use_wpa = (priv->host_info.major_version == 4);
|
| 3936 |
|
|
priv->radio_on_broken = (priv->host_info.major_version == 5);
|
| 3937 |
|
|
|
| 3938 |
|
|
/* unmask all irq sources */
|
| 3939 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff);
|
| 3940 |
|
|
|
| 3941 |
|
|
/* int Tx system and enable Tx */
|
| 3942 |
|
|
atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0);
|
| 3943 |
|
|
atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L);
|
| 3944 |
|
|
atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0);
|
| 3945 |
|
|
atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0);
|
| 3946 |
|
|
|
| 3947 |
|
|
priv->tx_desc_free = priv->host_info.tx_desc_count;
|
| 3948 |
|
|
priv->tx_desc_head = 0;
|
| 3949 |
|
|
priv->tx_desc_tail = 0;
|
| 3950 |
|
|
priv->tx_desc_previous = 0;
|
| 3951 |
|
|
priv->tx_free_mem = priv->host_info.tx_buff_size;
|
| 3952 |
|
|
priv->tx_buff_head = 0;
|
| 3953 |
|
|
priv->tx_buff_tail = 0;
|
| 3954 |
|
|
|
| 3955 |
|
|
configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
|
| 3956 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
|
| 3957 |
|
|
configuration | FUNC_CTRL_TxENABLE);
|
| 3958 |
|
|
|
| 3959 |
|
|
/* init Rx system and enable */
|
| 3960 |
|
|
priv->rx_desc_head = 0;
|
| 3961 |
|
|
|
| 3962 |
|
|
configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
|
| 3963 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
|
| 3964 |
|
|
configuration | FUNC_CTRL_RxENABLE);
|
| 3965 |
|
|
|
| 3966 |
|
|
if (!priv->radio_on_broken) {
|
| 3967 |
|
|
if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) ==
|
| 3968 |
|
|
CMD_STATUS_REJECTED_RADIO_OFF) {
|
| 3969 |
|
|
printk(KERN_INFO
|
| 3970 |
|
|
"%s: cannot turn the radio on. (Hey radio, you're beautiful!)\n",
|
| 3971 |
|
|
dev->name);
|
| 3972 |
|
|
return 0;
|
| 3973 |
|
|
}
|
| 3974 |
|
|
}
|
| 3975 |
|
|
|
| 3976 |
|
|
/* set up enough MIB values to run. */
|
| 3977 |
|
|
atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate);
|
| 3978 |
|
|
atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF);
|
| 3979 |
|
|
atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold);
|
| 3980 |
|
|
atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold);
|
| 3981 |
|
|
atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry);
|
| 3982 |
|
|
atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry);
|
| 3983 |
|
|
atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble);
|
| 3984 |
|
|
atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS,
|
| 3985 |
|
|
priv->dev->dev_addr, 6);
|
| 3986 |
|
|
atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
|
| 3987 |
|
|
atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
|
| 3988 |
|
|
atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period);
|
| 3989 |
|
|
atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4);
|
| 3990 |
|
|
atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on);
|
| 3991 |
|
|
if (priv->use_wpa)
|
| 3992 |
|
|
build_wpa_mib(priv);
|
| 3993 |
|
|
else
|
| 3994 |
|
|
build_wep_mib(priv);
|
| 3995 |
|
|
|
| 3996 |
|
|
if (old_state == STATION_STATE_READY)
|
| 3997 |
|
|
{
|
| 3998 |
|
|
union iwreq_data wrqu;
|
| 3999 |
|
|
|
| 4000 |
|
|
wrqu.data.length = 0;
|
| 4001 |
|
|
wrqu.data.flags = 0;
|
| 4002 |
|
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
|
| 4003 |
|
|
memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
|
| 4004 |
|
|
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
|
| 4005 |
|
|
}
|
| 4006 |
|
|
|
| 4007 |
|
|
return 1;
|
| 4008 |
|
|
}
|
| 4009 |
|
|
|
| 4010 |
|
|
static void atmel_send_command(struct atmel_private *priv, int command,
|
| 4011 |
|
|
void *cmd, int cmd_size)
|
| 4012 |
|
|
{
|
| 4013 |
|
|
if (cmd)
|
| 4014 |
|
|
atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET),
|
| 4015 |
|
|
cmd, cmd_size);
|
| 4016 |
|
|
|
| 4017 |
|
|
atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command);
|
| 4018 |
|
|
atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0);
|
| 4019 |
|
|
}
|
| 4020 |
|
|
|
| 4021 |
|
|
static int atmel_send_command_wait(struct atmel_private *priv, int command,
|
| 4022 |
|
|
void *cmd, int cmd_size)
|
| 4023 |
|
|
{
|
| 4024 |
|
|
int i, status;
|
| 4025 |
|
|
|
| 4026 |
|
|
atmel_send_command(priv, command, cmd, cmd_size);
|
| 4027 |
|
|
|
| 4028 |
|
|
for (i = 5000; i; i--) {
|
| 4029 |
|
|
status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
|
| 4030 |
|
|
if (status != CMD_STATUS_IDLE &&
|
| 4031 |
|
|
status != CMD_STATUS_IN_PROGRESS)
|
| 4032 |
|
|
break;
|
| 4033 |
|
|
udelay(20);
|
| 4034 |
|
|
}
|
| 4035 |
|
|
|
| 4036 |
|
|
if (i == 0) {
|
| 4037 |
|
|
printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name);
|
| 4038 |
|
|
status = CMD_STATUS_HOST_ERROR;
|
| 4039 |
|
|
} else {
|
| 4040 |
|
|
if (command != CMD_EnableRadio)
|
| 4041 |
|
|
status = CMD_STATUS_COMPLETE;
|
| 4042 |
|
|
}
|
| 4043 |
|
|
|
| 4044 |
|
|
return status;
|
| 4045 |
|
|
}
|
| 4046 |
|
|
|
| 4047 |
|
|
static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index)
|
| 4048 |
|
|
{
|
| 4049 |
|
|
struct get_set_mib m;
|
| 4050 |
|
|
m.type = type;
|
| 4051 |
|
|
m.size = 1;
|
| 4052 |
|
|
m.index = index;
|
| 4053 |
|
|
|
| 4054 |
|
|
atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
|
| 4055 |
|
|
return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE));
|
| 4056 |
|
|
}
|
| 4057 |
|
|
|
| 4058 |
|
|
static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data)
|
| 4059 |
|
|
{
|
| 4060 |
|
|
struct get_set_mib m;
|
| 4061 |
|
|
m.type = type;
|
| 4062 |
|
|
m.size = 1;
|
| 4063 |
|
|
m.index = index;
|
| 4064 |
|
|
m.data[0] = data;
|
| 4065 |
|
|
|
| 4066 |
|
|
atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
|
| 4067 |
|
|
}
|
| 4068 |
|
|
|
| 4069 |
|
|
static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
|
| 4070 |
|
|
u16 data)
|
| 4071 |
|
|
{
|
| 4072 |
|
|
struct get_set_mib m;
|
| 4073 |
|
|
m.type = type;
|
| 4074 |
|
|
m.size = 2;
|
| 4075 |
|
|
m.index = index;
|
| 4076 |
|
|
m.data[0] = data;
|
| 4077 |
|
|
m.data[1] = data >> 8;
|
| 4078 |
|
|
|
| 4079 |
|
|
atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2);
|
| 4080 |
|
|
}
|
| 4081 |
|
|
|
| 4082 |
|
|
static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
|
| 4083 |
|
|
u8 *data, int data_len)
|
| 4084 |
|
|
{
|
| 4085 |
|
|
struct get_set_mib m;
|
| 4086 |
|
|
m.type = type;
|
| 4087 |
|
|
m.size = data_len;
|
| 4088 |
|
|
m.index = index;
|
| 4089 |
|
|
|
| 4090 |
|
|
if (data_len > MIB_MAX_DATA_BYTES)
|
| 4091 |
|
|
printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
|
| 4092 |
|
|
|
| 4093 |
|
|
memcpy(m.data, data, data_len);
|
| 4094 |
|
|
atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
|
| 4095 |
|
|
}
|
| 4096 |
|
|
|
| 4097 |
|
|
static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
|
| 4098 |
|
|
u8 *data, int data_len)
|
| 4099 |
|
|
{
|
| 4100 |
|
|
struct get_set_mib m;
|
| 4101 |
|
|
m.type = type;
|
| 4102 |
|
|
m.size = data_len;
|
| 4103 |
|
|
m.index = index;
|
| 4104 |
|
|
|
| 4105 |
|
|
if (data_len > MIB_MAX_DATA_BYTES)
|
| 4106 |
|
|
printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
|
| 4107 |
|
|
|
| 4108 |
|
|
atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
|
| 4109 |
|
|
atmel_copy_to_host(priv->dev, data,
|
| 4110 |
|
|
atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len);
|
| 4111 |
|
|
}
|
| 4112 |
|
|
|
| 4113 |
|
|
static void atmel_writeAR(struct net_device *dev, u16 data)
|
| 4114 |
|
|
{
|
| 4115 |
|
|
int i;
|
| 4116 |
|
|
outw(data, dev->base_addr + AR);
|
| 4117 |
|
|
/* Address register appears to need some convincing..... */
|
| 4118 |
|
|
for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++)
|
| 4119 |
|
|
outw(data, dev->base_addr + AR);
|
| 4120 |
|
|
}
|
| 4121 |
|
|
|
| 4122 |
|
|
static void atmel_copy_to_card(struct net_device *dev, u16 dest,
|
| 4123 |
|
|
unsigned char *src, u16 len)
|
| 4124 |
|
|
{
|
| 4125 |
|
|
int i;
|
| 4126 |
|
|
atmel_writeAR(dev, dest);
|
| 4127 |
|
|
if (dest % 2) {
|
| 4128 |
|
|
atmel_write8(dev, DR, *src);
|
| 4129 |
|
|
src++; len--;
|
| 4130 |
|
|
}
|
| 4131 |
|
|
for (i = len; i > 1 ; i -= 2) {
|
| 4132 |
|
|
u8 lb = *src++;
|
| 4133 |
|
|
u8 hb = *src++;
|
| 4134 |
|
|
atmel_write16(dev, DR, lb | (hb << 8));
|
| 4135 |
|
|
}
|
| 4136 |
|
|
if (i)
|
| 4137 |
|
|
atmel_write8(dev, DR, *src);
|
| 4138 |
|
|
}
|
| 4139 |
|
|
|
| 4140 |
|
|
static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
|
| 4141 |
|
|
u16 src, u16 len)
|
| 4142 |
|
|
{
|
| 4143 |
|
|
int i;
|
| 4144 |
|
|
atmel_writeAR(dev, src);
|
| 4145 |
|
|
if (src % 2) {
|
| 4146 |
|
|
*dest = atmel_read8(dev, DR);
|
| 4147 |
|
|
dest++; len--;
|
| 4148 |
|
|
}
|
| 4149 |
|
|
for (i = len; i > 1 ; i -= 2) {
|
| 4150 |
|
|
u16 hw = atmel_read16(dev, DR);
|
| 4151 |
|
|
*dest++ = hw;
|
| 4152 |
|
|
*dest++ = hw >> 8;
|
| 4153 |
|
|
}
|
| 4154 |
|
|
if (i)
|
| 4155 |
|
|
*dest = atmel_read8(dev, DR);
|
| 4156 |
|
|
}
|
| 4157 |
|
|
|
| 4158 |
|
|
static void atmel_set_gcr(struct net_device *dev, u16 mask)
|
| 4159 |
|
|
{
|
| 4160 |
|
|
outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR);
|
| 4161 |
|
|
}
|
| 4162 |
|
|
|
| 4163 |
|
|
static void atmel_clear_gcr(struct net_device *dev, u16 mask)
|
| 4164 |
|
|
{
|
| 4165 |
|
|
outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR);
|
| 4166 |
|
|
}
|
| 4167 |
|
|
|
| 4168 |
|
|
static int atmel_lock_mac(struct atmel_private *priv)
|
| 4169 |
|
|
{
|
| 4170 |
|
|
int i, j = 20;
|
| 4171 |
|
|
retry:
|
| 4172 |
|
|
for (i = 5000; i; i--) {
|
| 4173 |
|
|
if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET)))
|
| 4174 |
|
|
break;
|
| 4175 |
|
|
udelay(20);
|
| 4176 |
|
|
}
|
| 4177 |
|
|
|
| 4178 |
|
|
if (!i)
|
| 4179 |
|
|
return 0; /* timed out */
|
| 4180 |
|
|
|
| 4181 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1);
|
| 4182 |
|
|
if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) {
|
| 4183 |
|
|
atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
|
| 4184 |
|
|
if (!j--)
|
| 4185 |
|
|
return 0; /* timed out */
|
| 4186 |
|
|
goto retry;
|
| 4187 |
|
|
}
|
| 4188 |
|
|
|
| 4189 |
|
|
return 1;
|
| 4190 |
|
|
}
|
| 4191 |
|
|
|
| 4192 |
|
|
static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data)
|
| 4193 |
|
|
{
|
| 4194 |
|
|
atmel_writeAR(priv->dev, pos);
|
| 4195 |
|
|
atmel_write16(priv->dev, DR, data); /* card is little-endian */
|
| 4196 |
|
|
atmel_write16(priv->dev, DR, data >> 16);
|
| 4197 |
|
|
}
|
| 4198 |
|
|
|
| 4199 |
|
|
/***************************************************************************/
|
| 4200 |
|
|
/* There follows the source form of the MAC address reading firmware */
|
| 4201 |
|
|
/***************************************************************************/
|
| 4202 |
|
|
#if 0
|
| 4203 |
|
|
|
| 4204 |
|
|
/* Copyright 2003 Matthew T. Russotto */
|
| 4205 |
|
|
/* But derived from the Atmel 76C502 firmware written by Atmel and */
|
| 4206 |
|
|
/* included in "atmel wireless lan drivers" package */
|
| 4207 |
|
|
/**
|
| 4208 |
|
|
This file is part of net.russotto.AtmelMACFW, hereto referred to
|
| 4209 |
|
|
as AtmelMACFW
|
| 4210 |
|
|
|
| 4211 |
|
|
AtmelMACFW is free software; you can redistribute it and/or modify
|
| 4212 |
|
|
it under the terms of the GNU General Public License version 2
|
| 4213 |
|
|
as published by the Free Software Foundation.
|
| 4214 |
|
|
|
| 4215 |
|
|
AtmelMACFW is distributed in the hope that it will be useful,
|
| 4216 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 4217 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 4218 |
|
|
GNU General Public License for more details.
|
| 4219 |
|
|
|
| 4220 |
|
|
You should have received a copy of the GNU General Public License
|
| 4221 |
|
|
along with AtmelMACFW; if not, write to the Free Software
|
| 4222 |
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
| 4223 |
|
|
|
| 4224 |
|
|
****************************************************************************/
|
| 4225 |
|
|
/* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */
|
| 4226 |
|
|
/* It will probably work on the 76C504 and 76C502 RFMD_3COM */
|
| 4227 |
|
|
/* It only works on SPI EEPROM versions of the card. */
|
| 4228 |
|
|
|
| 4229 |
|
|
/* This firmware initializes the SPI controller and clock, reads the MAC */
|
| 4230 |
|
|
/* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */
|
| 4231 |
|
|
/* address in MR2, and sets MR3 to 0x10 to indicate it is done */
|
| 4232 |
|
|
/* It also puts a complete copy of the EEPROM in SRAM with the offset in */
|
| 4233 |
|
|
/* MR4, for investigational purposes (maybe we can determine chip type */
|
| 4234 |
|
|
/* from that?) */
|
| 4235 |
|
|
|
| 4236 |
|
|
.org 0
|
| 4237 |
|
|
.set MRBASE, 0x8000000
|
| 4238 |
|
|
.set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */
|
| 4239 |
|
|
.set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */
|
| 4240 |
|
|
.set SRAM_BASE, 0x02000000
|
| 4241 |
|
|
.set SP_BASE, 0x0F300000
|
| 4242 |
|
|
.set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */
|
| 4243 |
|
|
.set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */
|
| 4244 |
|
|
.set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */
|
| 4245 |
|
|
.set STACK_BASE, 0x5600
|
| 4246 |
|
|
.set SP_SR, 0x10
|
| 4247 |
|
|
.set SP_TDRE, 2 /* status register bit -- TDR empty */
|
| 4248 |
|
|
.set SP_RDRF, 1 /* status register bit -- RDR full */
|
| 4249 |
|
|
.set SP_SWRST, 0x80
|
| 4250 |
|
|
.set SP_SPIEN, 0x1
|
| 4251 |
|
|
.set SP_CR, 0 /* control register */
|
| 4252 |
|
|
.set SP_MR, 4 /* mode register */
|
| 4253 |
|
|
.set SP_RDR, 0x08 /* Read Data Register */
|
| 4254 |
|
|
.set SP_TDR, 0x0C /* Transmit Data Register */
|
| 4255 |
|
|
.set SP_CSR0, 0x30 /* chip select registers */
|
| 4256 |
|
|
.set SP_CSR1, 0x34
|
| 4257 |
|
|
.set SP_CSR2, 0x38
|
| 4258 |
|
|
.set SP_CSR3, 0x3C
|
| 4259 |
|
|
.set NVRAM_CMD_RDSR, 5 /* read status register */
|
| 4260 |
|
|
.set NVRAM_CMD_READ, 3 /* read data */
|
| 4261 |
|
|
.set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */
|
| 4262 |
|
|
.set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the
|
| 4263 |
|
|
serial output, since SO is normally high. But it
|
| 4264 |
|
|
does cause 8 clock cycles and thus 8 bits to be
|
| 4265 |
|
|
clocked in to the chip. See Atmel's SPI
|
| 4266 |
|
|
controller (e.g. AT91M55800) timing and 4K
|
| 4267 |
|
|
SPI EEPROM manuals */
|
| 4268 |
|
|
|
| 4269 |
|
|
.set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */
|
| 4270 |
|
|
.set NVRAM_IMAGE, 0x02000200
|
| 4271 |
|
|
.set NVRAM_LENGTH, 0x0200
|
| 4272 |
|
|
.set MAC_ADDRESS_MIB, SRAM_BASE
|
| 4273 |
|
|
.set MAC_ADDRESS_LENGTH, 6
|
| 4274 |
|
|
.set MAC_BOOT_FLAG, 0x10
|
| 4275 |
|
|
.set MR1, 0
|
| 4276 |
|
|
.set MR2, 4
|
| 4277 |
|
|
.set MR3, 8
|
| 4278 |
|
|
.set MR4, 0xC
|
| 4279 |
|
|
RESET_VECTOR:
|
| 4280 |
|
|
b RESET_HANDLER
|
| 4281 |
|
|
UNDEF_VECTOR:
|
| 4282 |
|
|
b HALT1
|
| 4283 |
|
|
SWI_VECTOR:
|
| 4284 |
|
|
b HALT1
|
| 4285 |
|
|
IABORT_VECTOR:
|
| 4286 |
|
|
b HALT1
|
| 4287 |
|
|
DABORT_VECTOR:
|
| 4288 |
|
|
RESERVED_VECTOR:
|
| 4289 |
|
|
b HALT1
|
| 4290 |
|
|
IRQ_VECTOR:
|
| 4291 |
|
|
b HALT1
|
| 4292 |
|
|
FIQ_VECTOR:
|
| 4293 |
|
|
b HALT1
|
| 4294 |
|
|
HALT1: b HALT1
|
| 4295 |
|
|
RESET_HANDLER:
|
| 4296 |
|
|
mov r0, #CPSR_INITIAL
|
| 4297 |
|
|
msr CPSR_c, r0 /* This is probably unnecessary */
|
| 4298 |
|
|
|
| 4299 |
|
|
/* I'm guessing this is initializing clock generator electronics for SPI */
|
| 4300 |
|
|
ldr r0, =SPI_CGEN_BASE
|
| 4301 |
|
|
mov r1, #0
|
| 4302 |
|
|
mov r1, r1, lsl #3
|
| 4303 |
|
|
orr r1,r1, #0
|
| 4304 |
|
|
str r1, [r0]
|
| 4305 |
|
|
ldr r1, [r0, #28]
|
| 4306 |
|
|
bic r1, r1, #16
|
| 4307 |
|
|
str r1, [r0, #28]
|
| 4308 |
|
|
mov r1, #1
|
| 4309 |
|
|
str r1, [r0, #8]
|
| 4310 |
|
|
|
| 4311 |
|
|
ldr r0, =MRBASE
|
| 4312 |
|
|
mov r1, #0
|
| 4313 |
|
|
strh r1, [r0, #MR1]
|
| 4314 |
|
|
strh r1, [r0, #MR2]
|
| 4315 |
|
|
strh r1, [r0, #MR3]
|
| 4316 |
|
|
strh r1, [r0, #MR4]
|
| 4317 |
|
|
|
| 4318 |
|
|
mov sp, #STACK_BASE
|
| 4319 |
|
|
bl SP_INIT
|
| 4320 |
|
|
mov r0, #10
|
| 4321 |
|
|
bl DELAY9
|
| 4322 |
|
|
bl GET_MAC_ADDR
|
| 4323 |
|
|
bl GET_WHOLE_NVRAM
|
| 4324 |
|
|
ldr r0, =MRBASE
|
| 4325 |
|
|
ldr r1, =MAC_ADDRESS_MIB
|
| 4326 |
|
|
strh r1, [r0, #MR2]
|
| 4327 |
|
|
ldr r1, =NVRAM_IMAGE
|
| 4328 |
|
|
strh r1, [r0, #MR4]
|
| 4329 |
|
|
mov r1, #MAC_BOOT_FLAG
|
| 4330 |
|
|
strh r1, [r0, #MR3]
|
| 4331 |
|
|
HALT2: b HALT2
|
| 4332 |
|
|
.func Get_Whole_NVRAM, GET_WHOLE_NVRAM
|
| 4333 |
|
|
GET_WHOLE_NVRAM:
|
| 4334 |
|
|
stmdb sp!, {lr}
|
| 4335 |
|
|
mov r2, #0 /* 0th bytes of NVRAM */
|
| 4336 |
|
|
mov r3, #NVRAM_LENGTH
|
| 4337 |
|
|
mov r1, #0 /* not used in routine */
|
| 4338 |
|
|
ldr r0, =NVRAM_IMAGE
|
| 4339 |
|
|
bl NVRAM_XFER
|
| 4340 |
|
|
ldmia sp!, {lr}
|
| 4341 |
|
|
bx lr
|
| 4342 |
|
|
.endfunc
|
| 4343 |
|
|
|
| 4344 |
|
|
.func Get_MAC_Addr, GET_MAC_ADDR
|
| 4345 |
|
|
GET_MAC_ADDR:
|
| 4346 |
|
|
stmdb sp!, {lr}
|
| 4347 |
|
|
mov r2, #0x120 /* address of MAC Address within NVRAM */
|
| 4348 |
|
|
mov r3, #MAC_ADDRESS_LENGTH
|
| 4349 |
|
|
mov r1, #0 /* not used in routine */
|
| 4350 |
|
|
ldr r0, =MAC_ADDRESS_MIB
|
| 4351 |
|
|
bl NVRAM_XFER
|
| 4352 |
|
|
ldmia sp!, {lr}
|
| 4353 |
|
|
bx lr
|
| 4354 |
|
|
.endfunc
|
| 4355 |
|
|
.ltorg
|
| 4356 |
|
|
.func Delay9, DELAY9
|
| 4357 |
|
|
DELAY9:
|
| 4358 |
|
|
adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */
|
| 4359 |
|
|
DELAYLOOP:
|
| 4360 |
|
|
beq DELAY9_done
|
| 4361 |
|
|
subs r0, r0, #1
|
| 4362 |
|
|
b DELAYLOOP
|
| 4363 |
|
|
DELAY9_done:
|
| 4364 |
|
|
bx lr
|
| 4365 |
|
|
.endfunc
|
| 4366 |
|
|
|
| 4367 |
|
|
.func SP_Init, SP_INIT
|
| 4368 |
|
|
SP_INIT:
|
| 4369 |
|
|
mov r1, #SP_SWRST
|
| 4370 |
|
|
ldr r0, =SP_BASE
|
| 4371 |
|
|
str r1, [r0, #SP_CR] /* reset the SPI */
|
| 4372 |
|
|
mov r1, #0
|
| 4373 |
|
|
str r1, [r0, #SP_CR] /* release SPI from reset state */
|
| 4374 |
|
|
mov r1, #SP_SPIEN
|
| 4375 |
|
|
str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/
|
| 4376 |
|
|
str r1, [r0, #SP_CR] /* enable the SPI */
|
| 4377 |
|
|
|
| 4378 |
|
|
/* My guess would be this turns on the SPI clock */
|
| 4379 |
|
|
ldr r3, =SPI_CGEN_BASE
|
| 4380 |
|
|
ldr r1, [r3, #28]
|
| 4381 |
|
|
orr r1, r1, #0x2000
|
| 4382 |
|
|
str r1, [r3, #28]
|
| 4383 |
|
|
|
| 4384 |
|
|
ldr r1, =0x2000c01
|
| 4385 |
|
|
str r1, [r0, #SP_CSR0]
|
| 4386 |
|
|
ldr r1, =0x2000201
|
| 4387 |
|
|
str r1, [r0, #SP_CSR1]
|
| 4388 |
|
|
str r1, [r0, #SP_CSR2]
|
| 4389 |
|
|
str r1, [r0, #SP_CSR3]
|
| 4390 |
|
|
ldr r1, [r0, #SP_SR]
|
| 4391 |
|
|
ldr r0, [r0, #SP_RDR]
|
| 4392 |
|
|
bx lr
|
| 4393 |
|
|
.endfunc
|
| 4394 |
|
|
.func NVRAM_Init, NVRAM_INIT
|
| 4395 |
|
|
NVRAM_INIT:
|
| 4396 |
|
|
ldr r1, =SP_BASE
|
| 4397 |
|
|
ldr r0, [r1, #SP_RDR]
|
| 4398 |
|
|
mov r0, #NVRAM_CMD_RDSR
|
| 4399 |
|
|
str r0, [r1, #SP_TDR]
|
| 4400 |
|
|
SP_loop1:
|
| 4401 |
|
|
ldr r0, [r1, #SP_SR]
|
| 4402 |
|
|
tst r0, #SP_TDRE
|
| 4403 |
|
|
beq SP_loop1
|
| 4404 |
|
|
|
| 4405 |
|
|
mov r0, #SPI_8CLOCKS
|
| 4406 |
|
|
str r0, [r1, #SP_TDR]
|
| 4407 |
|
|
SP_loop2:
|
| 4408 |
|
|
ldr r0, [r1, #SP_SR]
|
| 4409 |
|
|
tst r0, #SP_TDRE
|
| 4410 |
|
|
beq SP_loop2
|
| 4411 |
|
|
|
| 4412 |
|
|
ldr r0, [r1, #SP_RDR]
|
| 4413 |
|
|
SP_loop3:
|
| 4414 |
|
|
ldr r0, [r1, #SP_SR]
|
| 4415 |
|
|
tst r0, #SP_RDRF
|
| 4416 |
|
|
beq SP_loop3
|
| 4417 |
|
|
|
| 4418 |
|
|
ldr r0, [r1, #SP_RDR]
|
| 4419 |
|
|
and r0, r0, #255
|
| 4420 |
|
|
bx lr
|
| 4421 |
|
|
.endfunc
|
| 4422 |
|
|
|
| 4423 |
|
|
.func NVRAM_Xfer, NVRAM_XFER
|
| 4424 |
|
|
/* r0 = dest address */
|
| 4425 |
|
|
/* r1 = not used */
|
| 4426 |
|
|
/* r2 = src address within NVRAM */
|
| 4427 |
|
|
/* r3 = length */
|
| 4428 |
|
|
NVRAM_XFER:
|
| 4429 |
|
|
stmdb sp!, {r4, r5, lr}
|
| 4430 |
|
|
mov r5, r0 /* save r0 (dest address) */
|
| 4431 |
|
|
mov r4, r3 /* save r3 (length) */
|
| 4432 |
|
|
mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */
|
| 4433 |
|
|
and r0, r0, #8
|
| 4434 |
|
|
add r0, r0, #NVRAM_CMD_READ
|
| 4435 |
|
|
ldr r1, =NVRAM_SCRATCH
|
| 4436 |
|
|
strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */
|
| 4437 |
|
|
strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */
|
| 4438 |
|
|
_local1:
|
| 4439 |
|
|
bl NVRAM_INIT
|
| 4440 |
|
|
tst r0, #NVRAM_SR_RDY
|
| 4441 |
|
|
bne _local1
|
| 4442 |
|
|
mov r0, #20
|
| 4443 |
|
|
bl DELAY9
|
| 4444 |
|
|
mov r2, r4 /* length */
|
| 4445 |
|
|
mov r1, r5 /* dest address */
|
| 4446 |
|
|
mov r0, #2 /* bytes to transfer in command */
|
| 4447 |
|
|
bl NVRAM_XFER2
|
| 4448 |
|
|
ldmia sp!, {r4, r5, lr}
|
| 4449 |
|
|
bx lr
|
| 4450 |
|
|
.endfunc
|
| 4451 |
|
|
|
| 4452 |
|
|
.func NVRAM_Xfer2, NVRAM_XFER2
|
| 4453 |
|
|
NVRAM_XFER2:
|
| 4454 |
|
|
stmdb sp!, {r4, r5, r6, lr}
|
| 4455 |
|
|
ldr r4, =SP_BASE
|
| 4456 |
|
|
mov r3, #0
|
| 4457 |
|
|
cmp r0, #0
|
| 4458 |
|
|
bls _local2
|
| 4459 |
|
|
ldr r5, =NVRAM_SCRATCH
|
| 4460 |
|
|
_local4:
|
| 4461 |
|
|
ldrb r6, [r5, r3]
|
| 4462 |
|
|
str r6, [r4, #SP_TDR]
|
| 4463 |
|
|
_local3:
|
| 4464 |
|
|
ldr r6, [r4, #SP_SR]
|
| 4465 |
|
|
tst r6, #SP_TDRE
|
| 4466 |
|
|
beq _local3
|
| 4467 |
|
|
add r3, r3, #1
|
| 4468 |
|
|
cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */
|
| 4469 |
|
|
blo _local4
|
| 4470 |
|
|
_local2:
|
| 4471 |
|
|
mov r3, #SPI_8CLOCKS
|
| 4472 |
|
|
str r3, [r4, #SP_TDR]
|
| 4473 |
|
|
ldr r0, [r4, #SP_RDR]
|
| 4474 |
|
|
_local5:
|
| 4475 |
|
|
ldr r0, [r4, #SP_SR]
|
| 4476 |
|
|
tst r0, #SP_RDRF
|
| 4477 |
|
|
beq _local5
|
| 4478 |
|
|
ldr r0, [r4, #SP_RDR] /* what's this byte? It's the byte read while writing the TDR -- nonsense, because the NVRAM doesn't read and write at the same time */
|
| 4479 |
|
|
mov r0, #0
|
| 4480 |
|
|
cmp r2, #0 /* r2 is # of bytes to copy in */
|
| 4481 |
|
|
bls _local6
|
| 4482 |
|
|
_local7:
|
| 4483 |
|
|
ldr r5, [r4, #SP_SR]
|
| 4484 |
|
|
tst r5, #SP_TDRE
|
| 4485 |
|
|
beq _local7
|
| 4486 |
|
|
str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */
|
| 4487 |
|
|
_local8:
|
| 4488 |
|
|
ldr r5, [r4, #SP_SR]
|
| 4489 |
|
|
tst r5, #SP_RDRF
|
| 4490 |
|
|
beq _local8
|
| 4491 |
|
|
ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */
|
| 4492 |
|
|
strb r5, [r1], #1 /* postindexed */
|
| 4493 |
|
|
add r0, r0, #1
|
| 4494 |
|
|
cmp r0, r2
|
| 4495 |
|
|
blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */
|
| 4496 |
|
|
_local6:
|
| 4497 |
|
|
mov r0, #200
|
| 4498 |
|
|
bl DELAY9
|
| 4499 |
|
|
ldmia sp!, {r4, r5, r6, lr}
|
| 4500 |
|
|
bx lr
|
| 4501 |
|
|
#endif
|
