-/*** -*- linux-c -*- **********************************************************
-
- Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
-
- Copyright 2000-2001 ATMEL Corporation.
- Copyright 2003-2004 Simon Kelley.
-
- This code was developed from version 2.1.1 of the Atmel drivers,
- released by Atmel corp. under the GPL in December 2002. It also
- includes code from the Linux aironet drivers (C) Benjamin Reed,
- and the Linux PCMCIA package, (C) David Hinds and the Linux wireless
- extensions, (C) Jean Tourrilhes.
-
- The firmware module for reading the MAC address of the card comes from
- net.russotto.AtmelMACFW, written by Matthew T. Russotto and copyright
- by him. net.russotto.AtmelMACFW is used under the GPL license version 2.
- This file contains the module in binary form and, under the terms
- of the GPL, in source form. The source is located at the end of the file.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This software is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with Atmel wireless lan drivers; if not, see
- <http://www.gnu.org/licenses/>.
-
- For all queries about this code, please contact the current author,
- Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
-
- Credit is due to HP UK and Cambridge Online Systems Ltd for supplying
- hardware used during development of this driver.
-
-******************************************************************************/
-
-#include <linux/interrupt.h>
-
-#include <linux/kernel.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/wireless.h>
-#include <net/iw_handler.h>
-#include <linux/crc32.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/device.h>
-#include <linux/moduleparam.h>
-#include <linux/firmware.h>
-#include <linux/jiffies.h>
-#include <net/cfg80211.h>
-#include "atmel.h"
-
-#define DRIVER_MAJOR 0
-#define DRIVER_MINOR 98
-
-MODULE_AUTHOR("Simon Kelley");
-MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
-MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards");
-
-/* The name of the firmware file to be loaded
- over-rides any automatic selection */
-static char *firmware = NULL;
-module_param(firmware, charp, 0);
-
-/* table of firmware file names */
-static struct {
- AtmelFWType fw_type;
- const char *fw_file;
- const char *fw_file_ext;
-} fw_table[] = {
- { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" },
- { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" },
- { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" },
- { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" },
- { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" },
- { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" },
- { ATMEL_FW_TYPE_504A_2958, "atmel_at76c504a_2958", "bin" },
- { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" },
- { ATMEL_FW_TYPE_NONE, NULL, NULL }
-};
-MODULE_FIRMWARE("atmel_at76c502-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c502.bin");
-MODULE_FIRMWARE("atmel_at76c502d-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c502d.bin");
-MODULE_FIRMWARE("atmel_at76c502e-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c502e.bin");
-MODULE_FIRMWARE("atmel_at76c502_3com-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c502_3com.bin");
-MODULE_FIRMWARE("atmel_at76c504-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c504.bin");
-MODULE_FIRMWARE("atmel_at76c504_2958-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c504_2958.bin");
-MODULE_FIRMWARE("atmel_at76c504a_2958-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c504a_2958.bin");
-MODULE_FIRMWARE("atmel_at76c506-wpa.bin");
-MODULE_FIRMWARE("atmel_at76c506.bin");
-
-#define MAX_SSID_LENGTH 32
-#define MGMT_JIFFIES (256 * HZ / 100)
-
-#define MAX_BSS_ENTRIES 64
-
-/* registers */
-#define GCR 0x00 /* (SIR0) General Configuration Register */
-#define BSR 0x02 /* (SIR1) Bank Switching Select Register */
-#define AR 0x04
-#define DR 0x08
-#define MR1 0x12 /* Mirror Register 1 */
-#define MR2 0x14 /* Mirror Register 2 */
-#define MR3 0x16 /* Mirror Register 3 */
-#define MR4 0x18 /* Mirror Register 4 */
-
-#define GPR1 0x0c
-#define GPR2 0x0e
-#define GPR3 0x10
-/*
- * Constants for the GCR register.
- */
-#define GCR_REMAP 0x0400 /* Remap internal SRAM to 0 */
-#define GCR_SWRES 0x0080 /* BIU reset (ARM and PAI are NOT reset) */
-#define GCR_CORES 0x0060 /* Core Reset (ARM and PAI are reset) */
-#define GCR_ENINT 0x0002 /* Enable Interrupts */
-#define GCR_ACKINT 0x0008 /* Acknowledge Interrupts */
-
-#define BSS_SRAM 0x0200 /* AMBA module selection --> SRAM */
-#define BSS_IRAM 0x0100 /* AMBA module selection --> IRAM */
-/*
- *Constants for the MR registers.
- */
-#define MAC_INIT_COMPLETE 0x0001 /* MAC init has been completed */
-#define MAC_BOOT_COMPLETE 0x0010 /* MAC boot has been completed */
-#define MAC_INIT_OK 0x0002 /* MAC boot has been completed */
-
-#define MIB_MAX_DATA_BYTES 212
-#define MIB_HEADER_SIZE 4 /* first four fields */
-
-struct get_set_mib {
- u8 type;
- u8 size;
- u8 index;
- u8 reserved;
- u8 data[MIB_MAX_DATA_BYTES];
-};
-
-struct rx_desc {
- u32 Next;
- u16 MsduPos;
- u16 MsduSize;
-
- u8 State;
- u8 Status;
- u8 Rate;
- u8 Rssi;
- u8 LinkQuality;
- u8 PreambleType;
- u16 Duration;
- u32 RxTime;
-};
-
-#define RX_DESC_FLAG_VALID 0x80
-#define RX_DESC_FLAG_CONSUMED 0x40
-#define RX_DESC_FLAG_IDLE 0x00
-
-#define RX_STATUS_SUCCESS 0x00
-
-#define RX_DESC_MSDU_POS_OFFSET 4
-#define RX_DESC_MSDU_SIZE_OFFSET 6
-#define RX_DESC_FLAGS_OFFSET 8
-#define RX_DESC_STATUS_OFFSET 9
-#define RX_DESC_RSSI_OFFSET 11
-#define RX_DESC_LINK_QUALITY_OFFSET 12
-#define RX_DESC_PREAMBLE_TYPE_OFFSET 13
-#define RX_DESC_DURATION_OFFSET 14
-#define RX_DESC_RX_TIME_OFFSET 16
-
-struct tx_desc {
- u32 NextDescriptor;
- u16 TxStartOfFrame;
- u16 TxLength;
-
- u8 TxState;
- u8 TxStatus;
- u8 RetryCount;
-
- u8 TxRate;
-
- u8 KeyIndex;
- u8 ChiperType;
- u8 ChipreLength;
- u8 Reserved1;
-
- u8 Reserved;
- u8 PacketType;
- u16 HostTxLength;
-};
-
-#define TX_DESC_NEXT_OFFSET 0
-#define TX_DESC_POS_OFFSET 4
-#define TX_DESC_SIZE_OFFSET 6
-#define TX_DESC_FLAGS_OFFSET 8
-#define TX_DESC_STATUS_OFFSET 9
-#define TX_DESC_RETRY_OFFSET 10
-#define TX_DESC_RATE_OFFSET 11
-#define TX_DESC_KEY_INDEX_OFFSET 12
-#define TX_DESC_CIPHER_TYPE_OFFSET 13
-#define TX_DESC_CIPHER_LENGTH_OFFSET 14
-#define TX_DESC_PACKET_TYPE_OFFSET 17
-#define TX_DESC_HOST_LENGTH_OFFSET 18
-
-/*
- * Host-MAC interface
- */
-
-#define TX_STATUS_SUCCESS 0x00
-
-#define TX_FIRM_OWN 0x80
-#define TX_DONE 0x40
-
-#define TX_ERROR 0x01
-
-#define TX_PACKET_TYPE_DATA 0x01
-#define TX_PACKET_TYPE_MGMT 0x02
-
-#define ISR_EMPTY 0x00 /* no bits set in ISR */
-#define ISR_TxCOMPLETE 0x01 /* packet transmitted */
-#define ISR_RxCOMPLETE 0x02 /* packet received */
-#define ISR_RxFRAMELOST 0x04 /* Rx Frame lost */
-#define ISR_FATAL_ERROR 0x08 /* Fatal error */
-#define ISR_COMMAND_COMPLETE 0x10 /* command completed */
-#define ISR_OUT_OF_RANGE 0x20 /* command completed */
-#define ISR_IBSS_MERGE 0x40 /* (4.1.2.30): IBSS merge */
-#define ISR_GENERIC_IRQ 0x80
-
-#define Local_Mib_Type 0x01
-#define Mac_Address_Mib_Type 0x02
-#define Mac_Mib_Type 0x03
-#define Statistics_Mib_Type 0x04
-#define Mac_Mgmt_Mib_Type 0x05
-#define Mac_Wep_Mib_Type 0x06
-#define Phy_Mib_Type 0x07
-#define Multi_Domain_MIB 0x08
-
-#define MAC_MGMT_MIB_CUR_BSSID_POS 14
-#define MAC_MIB_FRAG_THRESHOLD_POS 8
-#define MAC_MIB_RTS_THRESHOLD_POS 10
-#define MAC_MIB_SHORT_RETRY_POS 16
-#define MAC_MIB_LONG_RETRY_POS 17
-#define MAC_MIB_SHORT_RETRY_LIMIT_POS 16
-#define MAC_MGMT_MIB_BEACON_PER_POS 0
-#define MAC_MGMT_MIB_STATION_ID_POS 6
-#define MAC_MGMT_MIB_CUR_PRIVACY_POS 11
-#define MAC_MGMT_MIB_CUR_BSSID_POS 14
-#define MAC_MGMT_MIB_PS_MODE_POS 53
-#define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54
-#define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56
-#define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57
-#define PHY_MIB_CHANNEL_POS 14
-#define PHY_MIB_RATE_SET_POS 20
-#define PHY_MIB_REG_DOMAIN_POS 26
-#define LOCAL_MIB_AUTO_TX_RATE_POS 3
-#define LOCAL_MIB_SSID_SIZE 5
-#define LOCAL_MIB_TX_PROMISCUOUS_POS 6
-#define LOCAL_MIB_TX_MGMT_RATE_POS 7
-#define LOCAL_MIB_TX_CONTROL_RATE_POS 8
-#define LOCAL_MIB_PREAMBLE_TYPE 9
-#define MAC_ADDR_MIB_MAC_ADDR_POS 0
-
-#define CMD_Set_MIB_Vars 0x01
-#define CMD_Get_MIB_Vars 0x02
-#define CMD_Scan 0x03
-#define CMD_Join 0x04
-#define CMD_Start 0x05
-#define CMD_EnableRadio 0x06
-#define CMD_DisableRadio 0x07
-#define CMD_SiteSurvey 0x0B
-
-#define CMD_STATUS_IDLE 0x00
-#define CMD_STATUS_COMPLETE 0x01
-#define CMD_STATUS_UNKNOWN 0x02
-#define CMD_STATUS_INVALID_PARAMETER 0x03
-#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
-#define CMD_STATUS_TIME_OUT 0x07
-#define CMD_STATUS_IN_PROGRESS 0x08
-#define CMD_STATUS_REJECTED_RADIO_OFF 0x09
-#define CMD_STATUS_HOST_ERROR 0xFF
-#define CMD_STATUS_BUSY 0xFE
-
-#define CMD_BLOCK_COMMAND_OFFSET 0
-#define CMD_BLOCK_STATUS_OFFSET 1
-#define CMD_BLOCK_PARAMETERS_OFFSET 4
-
-#define SCAN_OPTIONS_SITE_SURVEY 0x80
-
-#define MGMT_FRAME_BODY_OFFSET 24
-#define MAX_AUTHENTICATION_RETRIES 3
-#define MAX_ASSOCIATION_RETRIES 3
-
-#define AUTHENTICATION_RESPONSE_TIME_OUT 1000
-
-#define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */
-#define LOOP_RETRY_LIMIT 500000
-
-#define ACTIVE_MODE 1
-#define PS_MODE 2
-
-#define MAX_ENCRYPTION_KEYS 4
-#define MAX_ENCRYPTION_KEY_SIZE 40
-
-/*
- * 802.11 related definitions
- */
-
-/*
- * Regulatory Domains
- */
-
-#define REG_DOMAIN_FCC 0x10 /* Channels 1-11 USA */
-#define REG_DOMAIN_DOC 0x20 /* Channel 1-11 Canada */
-#define REG_DOMAIN_ETSI 0x30 /* Channel 1-13 Europe (ex Spain/France) */
-#define REG_DOMAIN_SPAIN 0x31 /* Channel 10-11 Spain */
-#define REG_DOMAIN_FRANCE 0x32 /* Channel 10-13 France */
-#define REG_DOMAIN_MKK 0x40 /* Channel 14 Japan */
-#define REG_DOMAIN_MKK1 0x41 /* Channel 1-14 Japan(MKK1) */
-#define REG_DOMAIN_ISRAEL 0x50 /* Channel 3-9 ISRAEL */
-
-#define BSS_TYPE_AD_HOC 1
-#define BSS_TYPE_INFRASTRUCTURE 2
-
-#define SCAN_TYPE_ACTIVE 0
-#define SCAN_TYPE_PASSIVE 1
-
-#define LONG_PREAMBLE 0
-#define SHORT_PREAMBLE 1
-#define AUTO_PREAMBLE 2
-
-#define DATA_FRAME_WS_HEADER_SIZE 30
-
-/* promiscuous mode control */
-#define PROM_MODE_OFF 0x0
-#define PROM_MODE_UNKNOWN 0x1
-#define PROM_MODE_CRC_FAILED 0x2
-#define PROM_MODE_DUPLICATED 0x4
-#define PROM_MODE_MGMT 0x8
-#define PROM_MODE_CTRL 0x10
-#define PROM_MODE_BAD_PROTOCOL 0x20
-
-#define IFACE_INT_STATUS_OFFSET 0
-#define IFACE_INT_MASK_OFFSET 1
-#define IFACE_LOCKOUT_HOST_OFFSET 2
-#define IFACE_LOCKOUT_MAC_OFFSET 3
-#define IFACE_FUNC_CTRL_OFFSET 28
-#define IFACE_MAC_STAT_OFFSET 30
-#define IFACE_GENERIC_INT_TYPE_OFFSET 32
-
-#define CIPHER_SUITE_NONE 0
-#define CIPHER_SUITE_WEP_64 1
-#define CIPHER_SUITE_TKIP 2
-#define CIPHER_SUITE_AES 3
-#define CIPHER_SUITE_CCX 4
-#define CIPHER_SUITE_WEP_128 5
-
-/*
- * IFACE MACROS & definitions
- */
-
-/*
- * FuncCtrl field:
- */
-#define FUNC_CTRL_TxENABLE 0x10
-#define FUNC_CTRL_RxENABLE 0x20
-#define FUNC_CTRL_INIT_COMPLETE 0x01
-
-/* A stub firmware image which reads the MAC address from NVRAM on the card.
- For copyright information and source see the end of this file. */
-static u8 mac_reader[] = {
- 0x06, 0x00, 0x00, 0xea, 0x04, 0x00, 0x00, 0xea, 0x03, 0x00, 0x00, 0xea, 0x02, 0x00, 0x00, 0xea,
- 0x01, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0xea, 0xff, 0xff, 0xff, 0xea, 0xfe, 0xff, 0xff, 0xea,
- 0xd3, 0x00, 0xa0, 0xe3, 0x00, 0xf0, 0x21, 0xe1, 0x0e, 0x04, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3,
- 0x81, 0x11, 0xa0, 0xe1, 0x00, 0x10, 0x81, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x1c, 0x10, 0x90, 0xe5,
- 0x10, 0x10, 0xc1, 0xe3, 0x1c, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x08, 0x10, 0x80, 0xe5,
- 0x02, 0x03, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, 0xb0, 0x10, 0xc0, 0xe1, 0xb4, 0x10, 0xc0, 0xe1,
- 0xb8, 0x10, 0xc0, 0xe1, 0xbc, 0x10, 0xc0, 0xe1, 0x56, 0xdc, 0xa0, 0xe3, 0x21, 0x00, 0x00, 0xeb,
- 0x0a, 0x00, 0xa0, 0xe3, 0x1a, 0x00, 0x00, 0xeb, 0x10, 0x00, 0x00, 0xeb, 0x07, 0x00, 0x00, 0xeb,
- 0x02, 0x03, 0xa0, 0xe3, 0x02, 0x14, 0xa0, 0xe3, 0xb4, 0x10, 0xc0, 0xe1, 0x4c, 0x10, 0x9f, 0xe5,
- 0xbc, 0x10, 0xc0, 0xe1, 0x10, 0x10, 0xa0, 0xe3, 0xb8, 0x10, 0xc0, 0xe1, 0xfe, 0xff, 0xff, 0xea,
- 0x00, 0x40, 0x2d, 0xe9, 0x00, 0x20, 0xa0, 0xe3, 0x02, 0x3c, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3,
- 0x28, 0x00, 0x9f, 0xe5, 0x37, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1,
- 0x00, 0x40, 0x2d, 0xe9, 0x12, 0x2e, 0xa0, 0xe3, 0x06, 0x30, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3,
- 0x02, 0x04, 0xa0, 0xe3, 0x2f, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1,
- 0x00, 0x02, 0x00, 0x02, 0x80, 0x01, 0x90, 0xe0, 0x01, 0x00, 0x00, 0x0a, 0x01, 0x00, 0x50, 0xe2,
- 0xfc, 0xff, 0xff, 0xea, 0x1e, 0xff, 0x2f, 0xe1, 0x80, 0x10, 0xa0, 0xe3, 0xf3, 0x06, 0xa0, 0xe3,
- 0x00, 0x10, 0x80, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3,
- 0x04, 0x10, 0x80, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0x0e, 0x34, 0xa0, 0xe3, 0x1c, 0x10, 0x93, 0xe5,
- 0x02, 0x1a, 0x81, 0xe3, 0x1c, 0x10, 0x83, 0xe5, 0x58, 0x11, 0x9f, 0xe5, 0x30, 0x10, 0x80, 0xe5,
- 0x54, 0x11, 0x9f, 0xe5, 0x34, 0x10, 0x80, 0xe5, 0x38, 0x10, 0x80, 0xe5, 0x3c, 0x10, 0x80, 0xe5,
- 0x10, 0x10, 0x90, 0xe5, 0x08, 0x00, 0x90, 0xe5, 0x1e, 0xff, 0x2f, 0xe1, 0xf3, 0x16, 0xa0, 0xe3,
- 0x08, 0x00, 0x91, 0xe5, 0x05, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, 0x10, 0x00, 0x91, 0xe5,
- 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0xff, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5,
- 0x10, 0x00, 0x91, 0xe5, 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5,
- 0x10, 0x00, 0x91, 0xe5, 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5,
- 0xff, 0x00, 0x00, 0xe2, 0x1e, 0xff, 0x2f, 0xe1, 0x30, 0x40, 0x2d, 0xe9, 0x00, 0x50, 0xa0, 0xe1,
- 0x03, 0x40, 0xa0, 0xe1, 0xa2, 0x02, 0xa0, 0xe1, 0x08, 0x00, 0x00, 0xe2, 0x03, 0x00, 0x80, 0xe2,
- 0xd8, 0x10, 0x9f, 0xe5, 0x00, 0x00, 0xc1, 0xe5, 0x01, 0x20, 0xc1, 0xe5, 0xe2, 0xff, 0xff, 0xeb,
- 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x1a, 0x14, 0x00, 0xa0, 0xe3, 0xc4, 0xff, 0xff, 0xeb,
- 0x04, 0x20, 0xa0, 0xe1, 0x05, 0x10, 0xa0, 0xe1, 0x02, 0x00, 0xa0, 0xe3, 0x01, 0x00, 0x00, 0xeb,
- 0x30, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x70, 0x40, 0x2d, 0xe9, 0xf3, 0x46, 0xa0, 0xe3,
- 0x00, 0x30, 0xa0, 0xe3, 0x00, 0x00, 0x50, 0xe3, 0x08, 0x00, 0x00, 0x9a, 0x8c, 0x50, 0x9f, 0xe5,
- 0x03, 0x60, 0xd5, 0xe7, 0x0c, 0x60, 0x84, 0xe5, 0x10, 0x60, 0x94, 0xe5, 0x02, 0x00, 0x16, 0xe3,
- 0xfc, 0xff, 0xff, 0x0a, 0x01, 0x30, 0x83, 0xe2, 0x00, 0x00, 0x53, 0xe1, 0xf7, 0xff, 0xff, 0x3a,
- 0xff, 0x30, 0xa0, 0xe3, 0x0c, 0x30, 0x84, 0xe5, 0x08, 0x00, 0x94, 0xe5, 0x10, 0x00, 0x94, 0xe5,
- 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x94, 0xe5, 0x00, 0x00, 0xa0, 0xe3,
- 0x00, 0x00, 0x52, 0xe3, 0x0b, 0x00, 0x00, 0x9a, 0x10, 0x50, 0x94, 0xe5, 0x02, 0x00, 0x15, 0xe3,
- 0xfc, 0xff, 0xff, 0x0a, 0x0c, 0x30, 0x84, 0xe5, 0x10, 0x50, 0x94, 0xe5, 0x01, 0x00, 0x15, 0xe3,
- 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x50, 0x94, 0xe5, 0x01, 0x50, 0xc1, 0xe4, 0x01, 0x00, 0x80, 0xe2,
- 0x02, 0x00, 0x50, 0xe1, 0xf3, 0xff, 0xff, 0x3a, 0xc8, 0x00, 0xa0, 0xe3, 0x98, 0xff, 0xff, 0xeb,
- 0x70, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x01, 0x0c, 0x00, 0x02, 0x01, 0x02, 0x00, 0x02,
- 0x00, 0x01, 0x00, 0x02
-};
-
-struct atmel_private {
- void *card; /* Bus dependent structure varies for PCcard */
- int (*present_callback)(void *); /* And callback which uses it */
- char firmware_id[32];
- AtmelFWType firmware_type;
- u8 *firmware;
- int firmware_length;
- struct timer_list management_timer;
- struct net_device *dev;
- struct device *sys_dev;
- struct iw_statistics wstats;
- spinlock_t irqlock, timerlock; /* spinlocks */
- enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type;
- enum {
- CARD_TYPE_PARALLEL_FLASH,
- CARD_TYPE_SPI_FLASH,
- CARD_TYPE_EEPROM
- } card_type;
- int do_rx_crc; /* If we need to CRC incoming packets */
- int probe_crc; /* set if we don't yet know */
- int crc_ok_cnt, crc_ko_cnt; /* counters for probing */
- u16 rx_desc_head;
- u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous;
- u16 tx_free_mem, tx_buff_head, tx_buff_tail;
-
- u16 frag_seq, frag_len, frag_no;
- u8 frag_source[6];
-
- u8 wep_is_on, default_key, exclude_unencrypted, encryption_level;
- u8 group_cipher_suite, pairwise_cipher_suite;
- u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
- int wep_key_len[MAX_ENCRYPTION_KEYS];
- int use_wpa, radio_on_broken; /* firmware dependent stuff. */
-
- u16 host_info_base;
- struct host_info_struct {
- /* NB this is matched to the hardware, don't change. */
- u8 volatile int_status;
- u8 volatile int_mask;
- u8 volatile lockout_host;
- u8 volatile lockout_mac;
-
- u16 tx_buff_pos;
- u16 tx_buff_size;
- u16 tx_desc_pos;
- u16 tx_desc_count;
-
- u16 rx_buff_pos;
- u16 rx_buff_size;
- u16 rx_desc_pos;
- u16 rx_desc_count;
-
- u16 build_version;
- u16 command_pos;
-
- u16 major_version;
- u16 minor_version;
-
- u16 func_ctrl;
- u16 mac_status;
- u16 generic_IRQ_type;
- u8 reserved[2];
- } host_info;
-
- enum {
- STATION_STATE_SCANNING,
- STATION_STATE_JOINNING,
- STATION_STATE_AUTHENTICATING,
- STATION_STATE_ASSOCIATING,
- STATION_STATE_READY,
- STATION_STATE_REASSOCIATING,
- STATION_STATE_DOWN,
- STATION_STATE_MGMT_ERROR
- } station_state;
-
- int operating_mode, power_mode;
- time_t last_qual;
- int beacons_this_sec;
- int channel;
- int reg_domain, config_reg_domain;
- int tx_rate;
- int auto_tx_rate;
- int rts_threshold;
- int frag_threshold;
- int long_retry, short_retry;
- int preamble;
- int default_beacon_period, beacon_period, listen_interval;
- int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum;
- int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt;
- enum {
- SITE_SURVEY_IDLE,
- SITE_SURVEY_IN_PROGRESS,
- SITE_SURVEY_COMPLETED
- } site_survey_state;
- unsigned long last_survey;
-
- int station_was_associated, station_is_associated;
- int fast_scan;
-
- struct bss_info {
- int channel;
- int SSIDsize;
- int RSSI;
- int UsingWEP;
- int preamble;
- int beacon_period;
- int BSStype;
- u8 BSSID[6];
- u8 SSID[MAX_SSID_LENGTH];
- } BSSinfo[MAX_BSS_ENTRIES];
- int BSS_list_entries, current_BSS;
- int connect_to_any_BSS;
- int SSID_size, new_SSID_size;
- u8 CurrentBSSID[6], BSSID[6];
- u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH];
- u64 last_beacon_timestamp;
- u8 rx_buf[MAX_WIRELESS_BODY];
-};
-
-static u8 atmel_basic_rates[4] = {0x82, 0x84, 0x0b, 0x16};
-
-static const struct {
- int reg_domain;
- int min, max;
- char *name;
-} channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" },
- { REG_DOMAIN_DOC, 1, 11, "Canada" },
- { REG_DOMAIN_ETSI, 1, 13, "Europe" },
- { REG_DOMAIN_SPAIN, 10, 11, "Spain" },
- { REG_DOMAIN_FRANCE, 10, 13, "France" },
- { REG_DOMAIN_MKK, 14, 14, "MKK" },
- { REG_DOMAIN_MKK1, 1, 14, "MKK1" },
- { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} };
-
-static void build_wpa_mib(struct atmel_private *priv);
-static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static void atmel_copy_to_card(struct net_device *dev, u16 dest,
- const unsigned char *src, u16 len);
-static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
- u16 src, u16 len);
-static void atmel_set_gcr(struct net_device *dev, u16 mask);
-static void atmel_clear_gcr(struct net_device *dev, u16 mask);
-static int atmel_lock_mac(struct atmel_private *priv);
-static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data);
-static void atmel_command_irq(struct atmel_private *priv);
-static int atmel_validate_channel(struct atmel_private *priv, int channel);
-static void atmel_management_frame(struct atmel_private *priv,
- struct ieee80211_hdr *header,
- u16 frame_len, u8 rssi);
-static void atmel_management_timer(u_long a);
-static void atmel_send_command(struct atmel_private *priv, int command,
- void *cmd, int cmd_size);
-static int atmel_send_command_wait(struct atmel_private *priv, int command,
- void *cmd, int cmd_size);
-static void atmel_transmit_management_frame(struct atmel_private *priv,
- struct ieee80211_hdr *header,
- u8 *body, int body_len);
-
-static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index);
-static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index,
- u8 data);
-static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
- u16 data);
-static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
- u8 *data, int data_len);
-static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
- u8 *data, int data_len);
-static void atmel_scan(struct atmel_private *priv, int specific_ssid);
-static void atmel_join_bss(struct atmel_private *priv, int bss_index);
-static void atmel_smooth_qual(struct atmel_private *priv);
-static void atmel_writeAR(struct net_device *dev, u16 data);
-static int probe_atmel_card(struct net_device *dev);
-static int reset_atmel_card(struct net_device *dev);
-static void atmel_enter_state(struct atmel_private *priv, int new_state);
-int atmel_open (struct net_device *dev);
-
-static inline u16 atmel_hi(struct atmel_private *priv, u16 offset)
-{
- return priv->host_info_base + offset;
-}
-
-static inline u16 atmel_co(struct atmel_private *priv, u16 offset)
-{
- return priv->host_info.command_pos + offset;
-}
-
-static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc)
-{
- return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset;
-}
-
-static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc)
-{
- return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset;
-}
-
-static inline u8 atmel_read8(struct net_device *dev, u16 offset)
-{
- return inb(dev->base_addr + offset);
-}
-
-static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data)
-{
- outb(data, dev->base_addr + offset);
-}
-
-static inline u16 atmel_read16(struct net_device *dev, u16 offset)
-{
- return inw(dev->base_addr + offset);
-}
-
-static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data)
-{
- outw(data, dev->base_addr + offset);
-}
-
-static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos)
-{
- atmel_writeAR(priv->dev, pos);
- return atmel_read8(priv->dev, DR);
-}
-
-static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data)
-{
- atmel_writeAR(priv->dev, pos);
- atmel_write8(priv->dev, DR, data);
-}
-
-static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos)
-{
- atmel_writeAR(priv->dev, pos);
- return atmel_read16(priv->dev, DR);
-}
-
-static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data)
-{
- atmel_writeAR(priv->dev, pos);
- atmel_write16(priv->dev, DR, data);
-}
-
-static const struct iw_handler_def atmel_handler_def;
-
-static void tx_done_irq(struct atmel_private *priv)
-{
- int i;
-
- for (i = 0;
- atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE &&
- i < priv->host_info.tx_desc_count;
- i++) {
- u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head));
- u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head));
- u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head));
-
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0);
-
- priv->tx_free_mem += msdu_size;
- priv->tx_desc_free++;
-
- if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size))
- priv->tx_buff_head = 0;
- else
- priv->tx_buff_head += msdu_size;
-
- if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1))
- priv->tx_desc_head++ ;
- else
- priv->tx_desc_head = 0;
-
- if (type == TX_PACKET_TYPE_DATA) {
- if (status == TX_STATUS_SUCCESS)
- priv->dev->stats.tx_packets++;
- else
- priv->dev->stats.tx_errors++;
- netif_wake_queue(priv->dev);
- }
- }
-}
-
-static u16 find_tx_buff(struct atmel_private *priv, u16 len)
-{
- u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail;
-
- if (priv->tx_desc_free == 3 || priv->tx_free_mem < len)
- return 0;
-
- if (bottom_free >= len)
- return priv->host_info.tx_buff_pos + priv->tx_buff_tail;
-
- if (priv->tx_free_mem - bottom_free >= len) {
- priv->tx_buff_tail = 0;
- return priv->host_info.tx_buff_pos;
- }
-
- return 0;
-}
-
-static void tx_update_descriptor(struct atmel_private *priv, int is_bcast,
- u16 len, u16 buff, u8 type)
-{
- atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff);
- atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len);
- if (!priv->use_wpa)
- atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len);
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type);
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate);
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0);
- if (priv->use_wpa) {
- int cipher_type, cipher_length;
- if (is_bcast) {
- cipher_type = priv->group_cipher_suite;
- if (cipher_type == CIPHER_SUITE_WEP_64 ||
- cipher_type == CIPHER_SUITE_WEP_128)
- cipher_length = 8;
- else if (cipher_type == CIPHER_SUITE_TKIP)
- cipher_length = 12;
- else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 ||
- priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) {
- cipher_type = priv->pairwise_cipher_suite;
- cipher_length = 8;
- } else {
- cipher_type = CIPHER_SUITE_NONE;
- cipher_length = 0;
- }
- } else {
- cipher_type = priv->pairwise_cipher_suite;
- if (cipher_type == CIPHER_SUITE_WEP_64 ||
- cipher_type == CIPHER_SUITE_WEP_128)
- cipher_length = 8;
- else if (cipher_type == CIPHER_SUITE_TKIP)
- cipher_length = 12;
- else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 ||
- priv->group_cipher_suite == CIPHER_SUITE_WEP_128) {
- cipher_type = priv->group_cipher_suite;
- cipher_length = 8;
- } else {
- cipher_type = CIPHER_SUITE_NONE;
- cipher_length = 0;
- }
- }
-
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail),
- cipher_type);
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail),
- cipher_length);
- }
- atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L);
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN);
- if (priv->tx_desc_previous != priv->tx_desc_tail)
- atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0);
- priv->tx_desc_previous = priv->tx_desc_tail;
- if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1))
- priv->tx_desc_tail++;
- else
- priv->tx_desc_tail = 0;
- priv->tx_desc_free--;
- priv->tx_free_mem -= len;
-}
-
-static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
-{
- static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
- struct atmel_private *priv = netdev_priv(dev);
- struct ieee80211_hdr header;
- unsigned long flags;
- u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
-
- if (priv->card && priv->present_callback &&
- !(*priv->present_callback)(priv->card)) {
- dev->stats.tx_errors++;
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
-
- if (priv->station_state != STATION_STATE_READY) {
- dev->stats.tx_errors++;
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
-
- /* first ensure the timer func cannot run */
- spin_lock_bh(&priv->timerlock);
- /* then stop the hardware ISR */
- spin_lock_irqsave(&priv->irqlock, flags);
- /* nb doing the above in the opposite order will deadlock */
-
- /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the
- 12 first bytes (containing DA/SA) and put them in the appropriate
- fields of the Wireless Header. Thus the packet length is then the
- initial + 18 (+30-12) */
-
- if (!(buff = find_tx_buff(priv, len + 18))) {
- dev->stats.tx_dropped++;
- spin_unlock_irqrestore(&priv->irqlock, flags);
- spin_unlock_bh(&priv->timerlock);
- netif_stop_queue(dev);
- return NETDEV_TX_BUSY;
- }
-
- frame_ctl = IEEE80211_FTYPE_DATA;
- header.duration_id = 0;
- header.seq_ctrl = 0;
- if (priv->wep_is_on)
- frame_ctl |= IEEE80211_FCTL_PROTECTED;
- if (priv->operating_mode == IW_MODE_ADHOC) {
- skb_copy_from_linear_data(skb, &header.addr1, ETH_ALEN);
- memcpy(&header.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(&header.addr3, priv->BSSID, ETH_ALEN);
- } else {
- frame_ctl |= IEEE80211_FCTL_TODS;
- memcpy(&header.addr1, priv->CurrentBSSID, ETH_ALEN);
- memcpy(&header.addr2, dev->dev_addr, ETH_ALEN);
- skb_copy_from_linear_data(skb, &header.addr3, ETH_ALEN);
- }
-
- if (priv->use_wpa)
- memcpy(&header.addr4, SNAP_RFC1024, ETH_ALEN);
-
- header.frame_control = cpu_to_le16(frame_ctl);
- /* Copy the wireless header into the card */
- atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE);
- /* Copy the packet sans its 802.3 header addresses which have been replaced */
- atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12);
- priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE;
-
- /* low bit of first byte of destination tells us if broadcast */
- tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA);
- dev->stats.tx_bytes += len;
-
- spin_unlock_irqrestore(&priv->irqlock, flags);
- spin_unlock_bh(&priv->timerlock);
- dev_kfree_skb(skb);
-
- return NETDEV_TX_OK;
-}
-
-static void atmel_transmit_management_frame(struct atmel_private *priv,
- struct ieee80211_hdr *header,
- u8 *body, int body_len)
-{
- u16 buff;
- int len = MGMT_FRAME_BODY_OFFSET + body_len;
-
- if (!(buff = find_tx_buff(priv, len)))
- return;
-
- atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET);
- atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len);
- priv->tx_buff_tail += len;
- tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT);
-}
-
-static void fast_rx_path(struct atmel_private *priv,
- struct ieee80211_hdr *header,
- u16 msdu_size, u16 rx_packet_loc, u32 crc)
-{
- /* fast path: unfragmented packet copy directly into skbuf */
- u8 mac4[6];
- struct sk_buff *skb;
- unsigned char *skbp;
-
- /* get the final, mac 4 header field, this tells us encapsulation */
- atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6);
- msdu_size -= 6;
-
- if (priv->do_rx_crc) {
- crc = crc32_le(crc, mac4, 6);
- msdu_size -= 4;
- }
-
- if (!(skb = dev_alloc_skb(msdu_size + 14))) {
- priv->dev->stats.rx_dropped++;
- return;
- }
-
- skb_reserve(skb, 2);
- skbp = skb_put(skb, msdu_size + 12);
- atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size);
-
- if (priv->do_rx_crc) {
- u32 netcrc;
- crc = crc32_le(crc, skbp + 12, msdu_size);
- atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4);
- if ((crc ^ 0xffffffff) != netcrc) {
- priv->dev->stats.rx_crc_errors++;
- dev_kfree_skb(skb);
- return;
- }
- }
-
- memcpy(skbp, header->addr1, ETH_ALEN); /* destination address */
- if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
- memcpy(&skbp[ETH_ALEN], header->addr3, ETH_ALEN);
- else
- memcpy(&skbp[ETH_ALEN], header->addr2, ETH_ALEN); /* source address */
-
- skb->protocol = eth_type_trans(skb, priv->dev);
- skb->ip_summed = CHECKSUM_NONE;
- netif_rx(skb);
- priv->dev->stats.rx_bytes += 12 + msdu_size;
- priv->dev->stats.rx_packets++;
-}
-
-/* Test to see if the packet in card memory at packet_loc has a valid CRC
- It doesn't matter that this is slow: it is only used to proble the first few
- packets. */
-static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size)
-{
- int i = msdu_size - 4;
- u32 netcrc, crc = 0xffffffff;
-
- if (msdu_size < 4)
- return 0;
-
- atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4);
-
- atmel_writeAR(priv->dev, packet_loc);
- while (i--) {
- u8 octet = atmel_read8(priv->dev, DR);
- crc = crc32_le(crc, &octet, 1);
- }
-
- return (crc ^ 0xffffffff) == netcrc;
-}
-
-static void frag_rx_path(struct atmel_private *priv,
- struct ieee80211_hdr *header,
- u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no,
- u8 frag_no, int more_frags)
-{
- u8 mac4[ETH_ALEN];
- u8 source[ETH_ALEN];
- struct sk_buff *skb;
-
- if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
- memcpy(source, header->addr3, ETH_ALEN);
- else
- memcpy(source, header->addr2, ETH_ALEN);
-
- rx_packet_loc += 24; /* skip header */
-
- if (priv->do_rx_crc)
- msdu_size -= 4;
-
- if (frag_no == 0) { /* first fragment */
- atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, ETH_ALEN);
- msdu_size -= ETH_ALEN;
- rx_packet_loc += ETH_ALEN;
-
- if (priv->do_rx_crc)
- crc = crc32_le(crc, mac4, 6);
-
- priv->frag_seq = seq_no;
- priv->frag_no = 1;
- priv->frag_len = msdu_size;
- memcpy(priv->frag_source, source, ETH_ALEN);
- memcpy(&priv->rx_buf[ETH_ALEN], source, ETH_ALEN);
- memcpy(priv->rx_buf, header->addr1, ETH_ALEN);
-
- atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size);
-
- if (priv->do_rx_crc) {
- u32 netcrc;
- crc = crc32_le(crc, &priv->rx_buf[12], msdu_size);
- atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
- if ((crc ^ 0xffffffff) != netcrc) {
- priv->dev->stats.rx_crc_errors++;
- eth_broadcast_addr(priv->frag_source);
- }
- }
-
- } else if (priv->frag_no == frag_no &&
- priv->frag_seq == seq_no &&
- memcmp(priv->frag_source, source, ETH_ALEN) == 0) {
-
- atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len],
- rx_packet_loc, msdu_size);
- if (priv->do_rx_crc) {
- u32 netcrc;
- crc = crc32_le(crc,
- &priv->rx_buf[12 + priv->frag_len],
- msdu_size);
- atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
- if ((crc ^ 0xffffffff) != netcrc) {
- priv->dev->stats.rx_crc_errors++;
- eth_broadcast_addr(priv->frag_source);
- more_frags = 1; /* don't send broken assembly */
- }
- }
-
- priv->frag_len += msdu_size;
- priv->frag_no++;
-
- if (!more_frags) { /* last one */
- eth_broadcast_addr(priv->frag_source);
- if (!(skb = dev_alloc_skb(priv->frag_len + 14))) {
- priv->dev->stats.rx_dropped++;
- } else {
- skb_reserve(skb, 2);
- memcpy(skb_put(skb, priv->frag_len + 12),
- priv->rx_buf,
- priv->frag_len + 12);
- skb->protocol = eth_type_trans(skb, priv->dev);
- skb->ip_summed = CHECKSUM_NONE;
- netif_rx(skb);
- priv->dev->stats.rx_bytes += priv->frag_len + 12;
- priv->dev->stats.rx_packets++;
- }
- }
- } else
- priv->wstats.discard.fragment++;
-}
-
-static void rx_done_irq(struct atmel_private *priv)
-{
- int i;
- struct ieee80211_hdr header;
-
- for (i = 0;
- atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID &&
- i < priv->host_info.rx_desc_count;
- i++) {
-
- u16 msdu_size, rx_packet_loc, frame_ctl, seq_control;
- u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head));
- u32 crc = 0xffffffff;
-
- if (status != RX_STATUS_SUCCESS) {
- if (status == 0xc1) /* determined by experiment */
- priv->wstats.discard.nwid++;
- else
- priv->dev->stats.rx_errors++;
- goto next;
- }
-
- msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head));
- rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head));
-
- if (msdu_size < 30) {
- priv->dev->stats.rx_errors++;
- goto next;
- }
-
- /* Get header as far as end of seq_ctrl */
- atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24);
- frame_ctl = le16_to_cpu(header.frame_control);
- seq_control = le16_to_cpu(header.seq_ctrl);
-
- /* probe for CRC use here if needed once five packets have
- arrived with the same crc status, we assume we know what's
- happening and stop probing */
- if (priv->probe_crc) {
- if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) {
- priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size);
- } else {
- priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24);
- }
- if (priv->do_rx_crc) {
- if (priv->crc_ok_cnt++ > 5)
- priv->probe_crc = 0;
- } else {
- if (priv->crc_ko_cnt++ > 5)
- priv->probe_crc = 0;
- }
- }
-
- /* don't CRC header when WEP in use */
- if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) {
- crc = crc32_le(0xffffffff, (unsigned char *)&header, 24);
- }
- msdu_size -= 24; /* header */
-
- if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
- int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS;
- u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG;
- u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4;
-
- if (!more_fragments && packet_fragment_no == 0) {
- fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc);
- } else {
- frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc,
- packet_sequence_no, packet_fragment_no, more_fragments);
- }
- }
-
- if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
- /* copy rest of packet into buffer */
- atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size);
-
- /* we use the same buffer for frag reassembly and control packets */
- eth_broadcast_addr(priv->frag_source);
-
- if (priv->do_rx_crc) {
- /* last 4 octets is crc */
- msdu_size -= 4;
- crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size);
- if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) {
- priv->dev->stats.rx_crc_errors++;
- goto next;
- }
- }
-
- atmel_management_frame(priv, &header, msdu_size,
- atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head)));
- }
-
-next:
- /* release descriptor */
- atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED);
-
- if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1))
- priv->rx_desc_head++;
- else
- priv->rx_desc_head = 0;
- }
-}
-
-static irqreturn_t service_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = (struct net_device *) dev_id;
- struct atmel_private *priv = netdev_priv(dev);
- u8 isr;
- int i = -1;
- static const u8 irq_order[] = {
- ISR_OUT_OF_RANGE,
- ISR_RxCOMPLETE,
- ISR_TxCOMPLETE,
- ISR_RxFRAMELOST,
- ISR_FATAL_ERROR,
- ISR_COMMAND_COMPLETE,
- ISR_IBSS_MERGE,
- ISR_GENERIC_IRQ
- };
-
- if (priv->card && priv->present_callback &&
- !(*priv->present_callback)(priv->card))
- return IRQ_HANDLED;
-
- /* In this state upper-level code assumes it can mess with
- the card unhampered by interrupts which may change register state.
- Note that even though the card shouldn't generate interrupts
- the inturrupt line may be shared. This allows card setup
- to go on without disabling interrupts for a long time. */
- if (priv->station_state == STATION_STATE_DOWN)
- return IRQ_NONE;
-
- atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */
-
- while (1) {
- if (!atmel_lock_mac(priv)) {
- /* failed to contact card */
- printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
- return IRQ_HANDLED;
- }
-
- isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
- atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
-
- if (!isr) {
- atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */
- return i == -1 ? IRQ_NONE : IRQ_HANDLED;
- }
-
- atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */
-
- for (i = 0; i < ARRAY_SIZE(irq_order); i++)
- if (isr & irq_order[i])
- break;
-
- if (!atmel_lock_mac(priv)) {
- /* failed to contact card */
- printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
- return IRQ_HANDLED;
- }
-
- isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
- isr ^= irq_order[i];
- atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr);
- atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
-
- switch (irq_order[i]) {
-
- case ISR_OUT_OF_RANGE:
- if (priv->operating_mode == IW_MODE_INFRA &&
- priv->station_state == STATION_STATE_READY) {
- priv->station_is_associated = 0;
- atmel_scan(priv, 1);
- }
- break;
-
- case ISR_RxFRAMELOST:
- priv->wstats.discard.misc++;
- /* fall through */
- case ISR_RxCOMPLETE:
- rx_done_irq(priv);
- break;
-
- case ISR_TxCOMPLETE:
- tx_done_irq(priv);
- break;
-
- case ISR_FATAL_ERROR:
- printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name);
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- break;
-
- case ISR_COMMAND_COMPLETE:
- atmel_command_irq(priv);
- break;
-
- case ISR_IBSS_MERGE:
- atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
- priv->CurrentBSSID, 6);
- /* The WPA stuff cares about the current AP address */
- if (priv->use_wpa)
- build_wpa_mib(priv);
- break;
- case ISR_GENERIC_IRQ:
- printk(KERN_INFO "%s: Generic_irq received.\n", dev->name);
- break;
- }
- }
-}
-
-static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- /* update the link quality here in case we are seeing no beacons
- at all to drive the process */
- atmel_smooth_qual(priv);
-
- priv->wstats.status = priv->station_state;
-
- if (priv->operating_mode == IW_MODE_INFRA) {
- if (priv->station_state != STATION_STATE_READY) {
- priv->wstats.qual.qual = 0;
- priv->wstats.qual.level = 0;
- priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID
- | IW_QUAL_LEVEL_INVALID);
- }
- priv->wstats.qual.noise = 0;
- priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
- } else {
- /* Quality levels cannot be determined in ad-hoc mode,
- because we can 'hear' more that one remote station. */
- priv->wstats.qual.qual = 0;
- priv->wstats.qual.level = 0;
- priv->wstats.qual.noise = 0;
- priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID
- | IW_QUAL_LEVEL_INVALID
- | IW_QUAL_NOISE_INVALID;
- priv->wstats.miss.beacon = 0;
- }
-
- return &priv->wstats;
-}
-
-static int atmel_change_mtu(struct net_device *dev, int new_mtu)
-{
- if ((new_mtu < 68) || (new_mtu > 2312))
- return -EINVAL;
- dev->mtu = new_mtu;
- return 0;
-}
-
-static int atmel_set_mac_address(struct net_device *dev, void *p)
-{
- struct sockaddr *addr = p;
-
- memcpy (dev->dev_addr, addr->sa_data, dev->addr_len);
- return atmel_open(dev);
-}
-
-EXPORT_SYMBOL(atmel_open);
-
-int atmel_open(struct net_device *dev)
-{
- struct atmel_private *priv = netdev_priv(dev);
- int i, channel, err;
-
- /* any scheduled timer is no longer needed and might screw things up.. */
- del_timer_sync(&priv->management_timer);
-
- /* Interrupts will not touch the card once in this state... */
- priv->station_state = STATION_STATE_DOWN;
-
- if (priv->new_SSID_size) {
- memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size);
- priv->SSID_size = priv->new_SSID_size;
- priv->new_SSID_size = 0;
- }
- priv->BSS_list_entries = 0;
-
- priv->AuthenticationRequestRetryCnt = 0;
- priv->AssociationRequestRetryCnt = 0;
- priv->ReAssociationRequestRetryCnt = 0;
- priv->CurrentAuthentTransactionSeqNum = 0x0001;
- priv->ExpectedAuthentTransactionSeqNum = 0x0002;
-
- priv->site_survey_state = SITE_SURVEY_IDLE;
- priv->station_is_associated = 0;
-
- err = reset_atmel_card(dev);
- if (err)
- return err;
-
- if (priv->config_reg_domain) {
- priv->reg_domain = priv->config_reg_domain;
- atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain);
- } else {
- priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS);
- for (i = 0; i < ARRAY_SIZE(channel_table); i++)
- if (priv->reg_domain == channel_table[i].reg_domain)
- break;
- if (i == ARRAY_SIZE(channel_table)) {
- priv->reg_domain = REG_DOMAIN_MKK1;
- printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name);
- }
- }
-
- if ((channel = atmel_validate_channel(priv, priv->channel)))
- priv->channel = channel;
-
- /* this moves station_state on.... */
- atmel_scan(priv, 1);
-
- atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */
- return 0;
-}
-
-static int atmel_close(struct net_device *dev)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- /* Send event to userspace that we are disassociating */
- if (priv->station_state == STATION_STATE_READY) {
- union iwreq_data wrqu;
-
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- eth_zero_addr(wrqu.ap_addr.sa_data);
- wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
- }
-
- atmel_enter_state(priv, STATION_STATE_DOWN);
-
- if (priv->bus_type == BUS_TYPE_PCCARD)
- atmel_write16(dev, GCR, 0x0060);
- atmel_write16(dev, GCR, 0x0040);
- return 0;
-}
-
-static int atmel_validate_channel(struct atmel_private *priv, int channel)
-{
- /* check that channel is OK, if so return zero,
- else return suitable default channel */
- int i;
-
- for (i = 0; i < ARRAY_SIZE(channel_table); i++)
- if (priv->reg_domain == channel_table[i].reg_domain) {
- if (channel >= channel_table[i].min &&
- channel <= channel_table[i].max)
- return 0;
- else
- return channel_table[i].min;
- }
- return 0;
-}
-
-static int atmel_proc_show(struct seq_file *m, void *v)
-{
- struct atmel_private *priv = m->private;
- int i;
- char *s, *r, *c;
-
- seq_printf(m, "Driver version:\t\t%d.%d\n", DRIVER_MAJOR, DRIVER_MINOR);
-
- if (priv->station_state != STATION_STATE_DOWN) {
- seq_printf(m,
- "Firmware version:\t%d.%d build %d\n"
- "Firmware location:\t",
- priv->host_info.major_version,
- priv->host_info.minor_version,
- priv->host_info.build_version);
-
- if (priv->card_type != CARD_TYPE_EEPROM)
- seq_puts(m, "on card\n");
- else if (priv->firmware)
- seq_printf(m, "%s loaded by host\n", priv->firmware_id);
- else
- seq_printf(m, "%s loaded by hotplug\n", priv->firmware_id);
-
- switch (priv->card_type) {
- case CARD_TYPE_PARALLEL_FLASH:
- c = "Parallel flash";
- break;
- case CARD_TYPE_SPI_FLASH:
- c = "SPI flash\n";
- break;
- case CARD_TYPE_EEPROM:
- c = "EEPROM";
- break;
- default:
- c = "<unknown>";
- }
-
- r = "<unknown>";
- for (i = 0; i < ARRAY_SIZE(channel_table); i++)
- if (priv->reg_domain == channel_table[i].reg_domain)
- r = channel_table[i].name;
-
- seq_printf(m, "MAC memory type:\t%s\n", c);
- seq_printf(m, "Regulatory domain:\t%s\n", r);
- seq_printf(m, "Host CRC checking:\t%s\n",
- priv->do_rx_crc ? "On" : "Off");
- seq_printf(m, "WPA-capable firmware:\t%s\n",
- priv->use_wpa ? "Yes" : "No");
- }
-
- switch (priv->station_state) {
- case STATION_STATE_SCANNING:
- s = "Scanning";
- break;
- case STATION_STATE_JOINNING:
- s = "Joining";
- break;
- case STATION_STATE_AUTHENTICATING:
- s = "Authenticating";
- break;
- case STATION_STATE_ASSOCIATING:
- s = "Associating";
- break;
- case STATION_STATE_READY:
- s = "Ready";
- break;
- case STATION_STATE_REASSOCIATING:
- s = "Reassociating";
- break;
- case STATION_STATE_MGMT_ERROR:
- s = "Management error";
- break;
- case STATION_STATE_DOWN:
- s = "Down";
- break;
- default:
- s = "<unknown>";
- }
-
- seq_printf(m, "Current state:\t\t%s\n", s);
- return 0;
-}
-
-static int atmel_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, atmel_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations atmel_proc_fops = {
- .open = atmel_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct net_device_ops atmel_netdev_ops = {
- .ndo_open = atmel_open,
- .ndo_stop = atmel_close,
- .ndo_change_mtu = atmel_change_mtu,
- .ndo_set_mac_address = atmel_set_mac_address,
- .ndo_start_xmit = start_tx,
- .ndo_do_ioctl = atmel_ioctl,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-struct net_device *init_atmel_card(unsigned short irq, unsigned long port,
- const AtmelFWType fw_type,
- struct device *sys_dev,
- int (*card_present)(void *), void *card)
-{
- struct net_device *dev;
- struct atmel_private *priv;
- int rc;
-
- /* Create the network device object. */
- dev = alloc_etherdev(sizeof(*priv));
- if (!dev)
- return NULL;
-
- if (dev_alloc_name(dev, dev->name) < 0) {
- printk(KERN_ERR "atmel: Couldn't get name!\n");
- goto err_out_free;
- }
-
- priv = netdev_priv(dev);
- priv->dev = dev;
- priv->sys_dev = sys_dev;
- priv->present_callback = card_present;
- priv->card = card;
- priv->firmware = NULL;
- priv->firmware_id[0] = '\0';
- priv->firmware_type = fw_type;
- if (firmware) /* module parameter */
- strcpy(priv->firmware_id, firmware);
- priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI;
- priv->station_state = STATION_STATE_DOWN;
- priv->do_rx_crc = 0;
- /* For PCMCIA cards, some chips need CRC, some don't
- so we have to probe. */
- if (priv->bus_type == BUS_TYPE_PCCARD) {
- priv->probe_crc = 1;
- priv->crc_ok_cnt = priv->crc_ko_cnt = 0;
- } else
- priv->probe_crc = 0;
- priv->last_qual = jiffies;
- priv->last_beacon_timestamp = 0;
- memset(priv->frag_source, 0xff, sizeof(priv->frag_source));
- eth_zero_addr(priv->BSSID);
- priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */
- priv->station_was_associated = 0;
-
- priv->last_survey = jiffies;
- priv->preamble = LONG_PREAMBLE;
- priv->operating_mode = IW_MODE_INFRA;
- priv->connect_to_any_BSS = 0;
- priv->config_reg_domain = 0;
- priv->reg_domain = 0;
- priv->tx_rate = 3;
- priv->auto_tx_rate = 1;
- priv->channel = 4;
- priv->power_mode = 0;
- priv->SSID[0] = '\0';
- priv->SSID_size = 0;
- priv->new_SSID_size = 0;
- priv->frag_threshold = 2346;
- priv->rts_threshold = 2347;
- priv->short_retry = 7;
- priv->long_retry = 4;
-
- priv->wep_is_on = 0;
- priv->default_key = 0;
- priv->encryption_level = 0;
- priv->exclude_unencrypted = 0;
- priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
- priv->use_wpa = 0;
- memset(priv->wep_keys, 0, sizeof(priv->wep_keys));
- memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
-
- priv->default_beacon_period = priv->beacon_period = 100;
- priv->listen_interval = 1;
-
- init_timer(&priv->management_timer);
- spin_lock_init(&priv->irqlock);
- spin_lock_init(&priv->timerlock);
- priv->management_timer.function = atmel_management_timer;
- priv->management_timer.data = (unsigned long) dev;
-
- dev->netdev_ops = &atmel_netdev_ops;
- dev->wireless_handlers = &atmel_handler_def;
- dev->irq = irq;
- dev->base_addr = port;
-
- SET_NETDEV_DEV(dev, sys_dev);
-
- if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) {
- printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc);
- goto err_out_free;
- }
-
- if (!request_region(dev->base_addr, 32,
- priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) {
- goto err_out_irq;
- }
-
- if (register_netdev(dev))
- goto err_out_res;
-
- if (!probe_atmel_card(dev)) {
- unregister_netdev(dev);
- goto err_out_res;
- }
-
- netif_carrier_off(dev);
-
- if (!proc_create_data("driver/atmel", 0, NULL, &atmel_proc_fops, priv))
- printk(KERN_WARNING "atmel: unable to create /proc entry.\n");
-
- printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n",
- dev->name, DRIVER_MAJOR, DRIVER_MINOR, dev->dev_addr);
-
- return dev;
-
-err_out_res:
- release_region(dev->base_addr, 32);
-err_out_irq:
- free_irq(dev->irq, dev);
-err_out_free:
- free_netdev(dev);
- return NULL;
-}
-
-EXPORT_SYMBOL(init_atmel_card);
-
-void stop_atmel_card(struct net_device *dev)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- /* put a brick on it... */
- if (priv->bus_type == BUS_TYPE_PCCARD)
- atmel_write16(dev, GCR, 0x0060);
- atmel_write16(dev, GCR, 0x0040);
-
- del_timer_sync(&priv->management_timer);
- unregister_netdev(dev);
- remove_proc_entry("driver/atmel", NULL);
- free_irq(dev->irq, dev);
- kfree(priv->firmware);
- release_region(dev->base_addr, 32);
- free_netdev(dev);
-}
-
-EXPORT_SYMBOL(stop_atmel_card);
-
-static int atmel_set_essid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *dwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- /* Check if we asked for `any' */
- if (dwrq->flags == 0) {
- priv->connect_to_any_BSS = 1;
- } else {
- int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
-
- priv->connect_to_any_BSS = 0;
-
- /* Check the size of the string */
- if (dwrq->length > MAX_SSID_LENGTH)
- return -E2BIG;
- if (index != 0)
- return -EINVAL;
-
- memcpy(priv->new_SSID, extra, dwrq->length);
- priv->new_SSID_size = dwrq->length;
- }
-
- return -EINPROGRESS;
-}
-
-static int atmel_get_essid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *dwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- /* Get the current SSID */
- if (priv->new_SSID_size != 0) {
- memcpy(extra, priv->new_SSID, priv->new_SSID_size);
- dwrq->length = priv->new_SSID_size;
- } else {
- memcpy(extra, priv->SSID, priv->SSID_size);
- dwrq->length = priv->SSID_size;
- }
-
- dwrq->flags = !priv->connect_to_any_BSS; /* active */
-
- return 0;
-}
-
-static int atmel_get_wap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *awrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- memcpy(awrq->sa_data, priv->CurrentBSSID, ETH_ALEN);
- awrq->sa_family = ARPHRD_ETHER;
-
- return 0;
-}
-
-static int atmel_set_encode(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *dwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- /* Basic checking: do we have a key to set ?
- * Note : with the new API, it's impossible to get a NULL pointer.
- * Therefore, we need to check a key size == 0 instead.
- * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
- * when no key is present (only change flags), but older versions
- * don't do it. - Jean II */
- if (dwrq->length > 0) {
- int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
- int current_index = priv->default_key;
- /* Check the size of the key */
- if (dwrq->length > 13) {
- return -EINVAL;
- }
- /* Check the index (none -> use current) */
- if (index < 0 || index >= 4)
- index = current_index;
- else
- priv->default_key = index;
- /* Set the length */
- if (dwrq->length > 5)
- priv->wep_key_len[index] = 13;
- else
- if (dwrq->length > 0)
- priv->wep_key_len[index] = 5;
- else
- /* Disable the key */
- priv->wep_key_len[index] = 0;
- /* Check if the key is not marked as invalid */
- if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
- /* Cleanup */
- memset(priv->wep_keys[index], 0, 13);
- /* Copy the key in the driver */
- memcpy(priv->wep_keys[index], extra, dwrq->length);
- }
- /* WE specify that if a valid key is set, encryption
- * should be enabled (user may turn it off later)
- * This is also how "iwconfig ethX key on" works */
- if (index == current_index &&
- priv->wep_key_len[index] > 0) {
- priv->wep_is_on = 1;
- priv->exclude_unencrypted = 1;
- if (priv->wep_key_len[index] > 5) {
- priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
- priv->encryption_level = 2;
- } else {
- priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
- priv->encryption_level = 1;
- }
- }
- } else {
- /* Do we want to just set the transmit key index ? */
- int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
- if (index >= 0 && index < 4) {
- priv->default_key = index;
- } else
- /* Don't complain if only change the mode */
- if (!(dwrq->flags & IW_ENCODE_MODE))
- return -EINVAL;
- }
- /* Read the flags */
- if (dwrq->flags & IW_ENCODE_DISABLED) {
- priv->wep_is_on = 0;
- priv->encryption_level = 0;
- priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
- } else {
- priv->wep_is_on = 1;
- if (priv->wep_key_len[priv->default_key] > 5) {
- priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
- priv->encryption_level = 2;
- } else {
- priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
- priv->encryption_level = 1;
- }
- }
- if (dwrq->flags & IW_ENCODE_RESTRICTED)
- priv->exclude_unencrypted = 1;
- if (dwrq->flags & IW_ENCODE_OPEN)
- priv->exclude_unencrypted = 0;
-
- return -EINPROGRESS; /* Call commit handler */
-}
-
-static int atmel_get_encode(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *dwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
-
- if (!priv->wep_is_on)
- dwrq->flags = IW_ENCODE_DISABLED;
- else {
- if (priv->exclude_unencrypted)
- dwrq->flags = IW_ENCODE_RESTRICTED;
- else
- dwrq->flags = IW_ENCODE_OPEN;
- }
- /* Which key do we want ? -1 -> tx index */
- if (index < 0 || index >= 4)
- index = priv->default_key;
- dwrq->flags |= index + 1;
- /* Copy the key to the user buffer */
- dwrq->length = priv->wep_key_len[index];
- if (dwrq->length > 16) {
- dwrq->length = 0;
- } else {
- memset(extra, 0, 16);
- memcpy(extra, priv->wep_keys[index], dwrq->length);
- }
-
- return 0;
-}
-
-static int atmel_set_encodeext(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- struct iw_point *encoding = &wrqu->encoding;
- struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
- int idx, key_len, alg = ext->alg, set_key = 1;
-
- /* Determine and validate the key index */
- idx = encoding->flags & IW_ENCODE_INDEX;
- if (idx) {
- if (idx < 1 || idx > 4)
- return -EINVAL;
- idx--;
- } else
- idx = priv->default_key;
-
- if (encoding->flags & IW_ENCODE_DISABLED)
- alg = IW_ENCODE_ALG_NONE;
-
- if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
- priv->default_key = idx;
- set_key = ext->key_len > 0 ? 1 : 0;
- }
-
- if (set_key) {
- /* Set the requested key first */
- switch (alg) {
- case IW_ENCODE_ALG_NONE:
- priv->wep_is_on = 0;
- priv->encryption_level = 0;
- priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
- break;
- case IW_ENCODE_ALG_WEP:
- if (ext->key_len > 5) {
- priv->wep_key_len[idx] = 13;
- priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
- priv->encryption_level = 2;
- } else if (ext->key_len > 0) {
- priv->wep_key_len[idx] = 5;
- priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
- priv->encryption_level = 1;
- } else {
- return -EINVAL;
- }
- priv->wep_is_on = 1;
- memset(priv->wep_keys[idx], 0, 13);
- key_len = min ((int)ext->key_len, priv->wep_key_len[idx]);
- memcpy(priv->wep_keys[idx], ext->key, key_len);
- break;
- default:
- return -EINVAL;
- }
- }
-
- return -EINPROGRESS;
-}
-
-static int atmel_get_encodeext(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- struct iw_point *encoding = &wrqu->encoding;
- struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
- int idx, max_key_len;
-
- max_key_len = encoding->length - sizeof(*ext);
- if (max_key_len < 0)
- return -EINVAL;
-
- idx = encoding->flags & IW_ENCODE_INDEX;
- if (idx) {
- if (idx < 1 || idx > 4)
- return -EINVAL;
- idx--;
- } else
- idx = priv->default_key;
-
- encoding->flags = idx + 1;
- memset(ext, 0, sizeof(*ext));
-
- if (!priv->wep_is_on) {
- ext->alg = IW_ENCODE_ALG_NONE;
- ext->key_len = 0;
- encoding->flags |= IW_ENCODE_DISABLED;
- } else {
- if (priv->encryption_level > 0)
- ext->alg = IW_ENCODE_ALG_WEP;
- else
- return -EINVAL;
-
- ext->key_len = priv->wep_key_len[idx];
- memcpy(ext->key, priv->wep_keys[idx], ext->key_len);
- encoding->flags |= IW_ENCODE_ENABLED;
- }
-
- return 0;
-}
-
-static int atmel_set_auth(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- struct iw_param *param = &wrqu->param;
-
- switch (param->flags & IW_AUTH_INDEX) {
- case IW_AUTH_WPA_VERSION:
- case IW_AUTH_CIPHER_PAIRWISE:
- case IW_AUTH_CIPHER_GROUP:
- case IW_AUTH_KEY_MGMT:
- case IW_AUTH_RX_UNENCRYPTED_EAPOL:
- case IW_AUTH_PRIVACY_INVOKED:
- /*
- * atmel does not use these parameters
- */
- break;
-
- case IW_AUTH_DROP_UNENCRYPTED:
- priv->exclude_unencrypted = param->value ? 1 : 0;
- break;
-
- case IW_AUTH_80211_AUTH_ALG: {
- if (param->value & IW_AUTH_ALG_SHARED_KEY) {
- priv->exclude_unencrypted = 1;
- } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
- priv->exclude_unencrypted = 0;
- } else
- return -EINVAL;
- break;
- }
-
- case IW_AUTH_WPA_ENABLED:
- /* Silently accept disable of WPA */
- if (param->value > 0)
- return -EOPNOTSUPP;
- break;
-
- default:
- return -EOPNOTSUPP;
- }
- return -EINPROGRESS;
-}
-
-static int atmel_get_auth(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- struct iw_param *param = &wrqu->param;
-
- switch (param->flags & IW_AUTH_INDEX) {
- case IW_AUTH_DROP_UNENCRYPTED:
- param->value = priv->exclude_unencrypted;
- break;
-
- case IW_AUTH_80211_AUTH_ALG:
- if (priv->exclude_unencrypted == 1)
- param->value = IW_AUTH_ALG_SHARED_KEY;
- else
- param->value = IW_AUTH_ALG_OPEN_SYSTEM;
- break;
-
- case IW_AUTH_WPA_ENABLED:
- param->value = 0;
- break;
-
- default:
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-
-static int atmel_get_name(struct net_device *dev,
- struct iw_request_info *info,
- char *cwrq,
- char *extra)
-{
- strcpy(cwrq, "IEEE 802.11-DS");
- return 0;
-}
-
-static int atmel_set_rate(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- if (vwrq->fixed == 0) {
- priv->tx_rate = 3;
- priv->auto_tx_rate = 1;
- } else {
- priv->auto_tx_rate = 0;
-
- /* Which type of value ? */
- if ((vwrq->value < 4) && (vwrq->value >= 0)) {
- /* Setting by rate index */
- priv->tx_rate = vwrq->value;
- } else {
- /* Setting by frequency value */
- switch (vwrq->value) {
- case 1000000:
- priv->tx_rate = 0;
- break;
- case 2000000:
- priv->tx_rate = 1;
- break;
- case 5500000:
- priv->tx_rate = 2;
- break;
- case 11000000:
- priv->tx_rate = 3;
- break;
- default:
- return -EINVAL;
- }
- }
- }
-
- return -EINPROGRESS;
-}
-
-static int atmel_set_mode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *uwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA)
- return -EINVAL;
-
- priv->operating_mode = *uwrq;
- return -EINPROGRESS;
-}
-
-static int atmel_get_mode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *uwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- *uwrq = priv->operating_mode;
- return 0;
-}
-
-static int atmel_get_rate(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- if (priv->auto_tx_rate) {
- vwrq->fixed = 0;
- vwrq->value = 11000000;
- } else {
- vwrq->fixed = 1;
- switch (priv->tx_rate) {
- case 0:
- vwrq->value = 1000000;
- break;
- case 1:
- vwrq->value = 2000000;
- break;
- case 2:
- vwrq->value = 5500000;
- break;
- case 3:
- vwrq->value = 11000000;
- break;
- }
- }
- return 0;
-}
-
-static int atmel_set_power(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- priv->power_mode = vwrq->disabled ? 0 : 1;
- return -EINPROGRESS;
-}
-
-static int atmel_get_power(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- vwrq->disabled = priv->power_mode ? 0 : 1;
- vwrq->flags = IW_POWER_ON;
- return 0;
-}
-
-static int atmel_set_retry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) {
- if (vwrq->flags & IW_RETRY_LONG)
- priv->long_retry = vwrq->value;
- else if (vwrq->flags & IW_RETRY_SHORT)
- priv->short_retry = vwrq->value;
- else {
- /* No modifier : set both */
- priv->long_retry = vwrq->value;
- priv->short_retry = vwrq->value;
- }
- return -EINPROGRESS;
- }
-
- return -EINVAL;
-}
-
-static int atmel_get_retry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- vwrq->disabled = 0; /* Can't be disabled */
-
- /* Note : by default, display the short retry number */
- if (vwrq->flags & IW_RETRY_LONG) {
- vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
- vwrq->value = priv->long_retry;
- } else {
- vwrq->flags = IW_RETRY_LIMIT;
- vwrq->value = priv->short_retry;
- if (priv->long_retry != priv->short_retry)
- vwrq->flags |= IW_RETRY_SHORT;
- }
-
- return 0;
-}
-
-static int atmel_set_rts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- int rthr = vwrq->value;
-
- if (vwrq->disabled)
- rthr = 2347;
- if ((rthr < 0) || (rthr > 2347)) {
- return -EINVAL;
- }
- priv->rts_threshold = rthr;
-
- return -EINPROGRESS; /* Call commit handler */
-}
-
-static int atmel_get_rts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- vwrq->value = priv->rts_threshold;
- vwrq->disabled = (vwrq->value >= 2347);
- vwrq->fixed = 1;
-
- return 0;
-}
-
-static int atmel_set_frag(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- int fthr = vwrq->value;
-
- if (vwrq->disabled)
- fthr = 2346;
- if ((fthr < 256) || (fthr > 2346)) {
- return -EINVAL;
- }
- fthr &= ~0x1; /* Get an even value - is it really needed ??? */
- priv->frag_threshold = fthr;
-
- return -EINPROGRESS; /* Call commit handler */
-}
-
-static int atmel_get_frag(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *vwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- vwrq->value = priv->frag_threshold;
- vwrq->disabled = (vwrq->value >= 2346);
- vwrq->fixed = 1;
-
- return 0;
-}
-
-static int atmel_set_freq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *fwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- int rc = -EINPROGRESS; /* Call commit handler */
-
- /* If setting by frequency, convert to a channel */
- if (fwrq->e == 1) {
- int f = fwrq->m / 100000;
-
- /* Hack to fall through... */
- fwrq->e = 0;
- fwrq->m = ieee80211_frequency_to_channel(f);
- }
- /* Setting by channel number */
- if ((fwrq->m > 1000) || (fwrq->e > 0))
- rc = -EOPNOTSUPP;
- else {
- int channel = fwrq->m;
- if (atmel_validate_channel(priv, channel) == 0) {
- priv->channel = channel;
- } else {
- rc = -EINVAL;
- }
- }
- return rc;
-}
-
-static int atmel_get_freq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *fwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
-
- fwrq->m = priv->channel;
- fwrq->e = 0;
- return 0;
-}
-
-static int atmel_set_scan(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *dwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- unsigned long flags;
-
- /* Note : you may have realised that, as this is a SET operation,
- * this is privileged and therefore a normal user can't
- * perform scanning.
- * This is not an error, while the device perform scanning,
- * traffic doesn't flow, so it's a perfect DoS...
- * Jean II */
-
- if (priv->station_state == STATION_STATE_DOWN)
- return -EAGAIN;
-
- /* Timeout old surveys. */
- if (time_after(jiffies, priv->last_survey + 20 * HZ))
- priv->site_survey_state = SITE_SURVEY_IDLE;
- priv->last_survey = jiffies;
-
- /* Initiate a scan command */
- if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS)
- return -EBUSY;
-
- del_timer_sync(&priv->management_timer);
- spin_lock_irqsave(&priv->irqlock, flags);
-
- priv->site_survey_state = SITE_SURVEY_IN_PROGRESS;
- priv->fast_scan = 0;
- atmel_scan(priv, 0);
- spin_unlock_irqrestore(&priv->irqlock, flags);
-
- return 0;
-}
-
-static int atmel_get_scan(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *dwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- int i;
- char *current_ev = extra;
- struct iw_event iwe;
-
- if (priv->site_survey_state != SITE_SURVEY_COMPLETED)
- return -EAGAIN;
-
- for (i = 0; i < priv->BSS_list_entries; i++) {
- iwe.cmd = SIOCGIWAP;
- iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
- memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, ETH_ALEN);
- current_ev = iwe_stream_add_event(info, current_ev,
- extra + IW_SCAN_MAX_DATA,
- &iwe, IW_EV_ADDR_LEN);
-
- iwe.u.data.length = priv->BSSinfo[i].SSIDsize;
- if (iwe.u.data.length > 32)
- iwe.u.data.length = 32;
- iwe.cmd = SIOCGIWESSID;
- iwe.u.data.flags = 1;
- current_ev = iwe_stream_add_point(info, current_ev,
- extra + IW_SCAN_MAX_DATA,
- &iwe, priv->BSSinfo[i].SSID);
-
- iwe.cmd = SIOCGIWMODE;
- iwe.u.mode = priv->BSSinfo[i].BSStype;
- current_ev = iwe_stream_add_event(info, current_ev,
- extra + IW_SCAN_MAX_DATA,
- &iwe, IW_EV_UINT_LEN);
-
- iwe.cmd = SIOCGIWFREQ;
- iwe.u.freq.m = priv->BSSinfo[i].channel;
- iwe.u.freq.e = 0;
- current_ev = iwe_stream_add_event(info, current_ev,
- extra + IW_SCAN_MAX_DATA,
- &iwe, IW_EV_FREQ_LEN);
-
- /* Add quality statistics */
- iwe.cmd = IWEVQUAL;
- iwe.u.qual.level = priv->BSSinfo[i].RSSI;
- iwe.u.qual.qual = iwe.u.qual.level;
- /* iwe.u.qual.noise = SOMETHING */
- current_ev = iwe_stream_add_event(info, current_ev,
- extra + IW_SCAN_MAX_DATA,
- &iwe, IW_EV_QUAL_LEN);
-
-
- iwe.cmd = SIOCGIWENCODE;
- if (priv->BSSinfo[i].UsingWEP)
- iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
- else
- iwe.u.data.flags = IW_ENCODE_DISABLED;
- iwe.u.data.length = 0;
- current_ev = iwe_stream_add_point(info, current_ev,
- extra + IW_SCAN_MAX_DATA,
- &iwe, NULL);
- }
-
- /* Length of data */
- dwrq->length = (current_ev - extra);
- dwrq->flags = 0;
-
- return 0;
-}
-
-static int atmel_get_range(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *dwrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- struct iw_range *range = (struct iw_range *) extra;
- int k, i, j;
-
- dwrq->length = sizeof(struct iw_range);
- memset(range, 0, sizeof(struct iw_range));
- range->min_nwid = 0x0000;
- range->max_nwid = 0x0000;
- range->num_channels = 0;
- for (j = 0; j < ARRAY_SIZE(channel_table); j++)
- if (priv->reg_domain == channel_table[j].reg_domain) {
- range->num_channels = channel_table[j].max - channel_table[j].min + 1;
- break;
- }
- if (range->num_channels != 0) {
- for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) {
- range->freq[k].i = i; /* List index */
-
- /* Values in MHz -> * 10^5 * 10 */
- range->freq[k].m = 100000 *
- ieee80211_channel_to_frequency(i, IEEE80211_BAND_2GHZ);
- range->freq[k++].e = 1;
- }
- range->num_frequency = k;
- }
-
- range->max_qual.qual = 100;
- range->max_qual.level = 100;
- range->max_qual.noise = 0;
- range->max_qual.updated = IW_QUAL_NOISE_INVALID;
-
- range->avg_qual.qual = 50;
- range->avg_qual.level = 50;
- range->avg_qual.noise = 0;
- range->avg_qual.updated = IW_QUAL_NOISE_INVALID;
-
- range->sensitivity = 0;
-
- range->bitrate[0] = 1000000;
- range->bitrate[1] = 2000000;
- range->bitrate[2] = 5500000;
- range->bitrate[3] = 11000000;
- range->num_bitrates = 4;
-
- range->min_rts = 0;
- range->max_rts = 2347;
- range->min_frag = 256;
- range->max_frag = 2346;
-
- range->encoding_size[0] = 5;
- range->encoding_size[1] = 13;
- range->num_encoding_sizes = 2;
- range->max_encoding_tokens = 4;
-
- range->pmp_flags = IW_POWER_ON;
- range->pmt_flags = IW_POWER_ON;
- range->pm_capa = 0;
-
- range->we_version_source = WIRELESS_EXT;
- range->we_version_compiled = WIRELESS_EXT;
- range->retry_capa = IW_RETRY_LIMIT ;
- range->retry_flags = IW_RETRY_LIMIT;
- range->r_time_flags = 0;
- range->min_retry = 1;
- range->max_retry = 65535;
-
- return 0;
-}
-
-static int atmel_set_wap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *awrq,
- char *extra)
-{
- struct atmel_private *priv = netdev_priv(dev);
- int i;
- static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
- static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
- unsigned long flags;
-
- if (awrq->sa_family != ARPHRD_ETHER)
- return -EINVAL;
-
- if (!memcmp(any, awrq->sa_data, 6) ||
- !memcmp(off, awrq->sa_data, 6)) {
- del_timer_sync(&priv->management_timer);
- spin_lock_irqsave(&priv->irqlock, flags);
- atmel_scan(priv, 1);
- spin_unlock_irqrestore(&priv->irqlock, flags);
- return 0;
- }
-
- for (i = 0; i < priv->BSS_list_entries; i++) {
- if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) {
- if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) {
- return -EINVAL;
- } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) {
- return -EINVAL;
- } else {
- del_timer_sync(&priv->management_timer);
- spin_lock_irqsave(&priv->irqlock, flags);
- atmel_join_bss(priv, i);
- spin_unlock_irqrestore(&priv->irqlock, flags);
- return 0;
- }
- }
- }
-
- return -EINVAL;
-}
-
-static int atmel_config_commit(struct net_device *dev,
- struct iw_request_info *info, /* NULL */
- void *zwrq, /* NULL */
- char *extra) /* NULL */
-{
- return atmel_open(dev);
-}
-
-static const iw_handler atmel_handler[] =
-{
- (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */
- (iw_handler) atmel_get_name, /* SIOCGIWNAME */
- (iw_handler) NULL, /* SIOCSIWNWID */
- (iw_handler) NULL, /* SIOCGIWNWID */
- (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */
- (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */
- (iw_handler) atmel_set_mode, /* SIOCSIWMODE */
- (iw_handler) atmel_get_mode, /* SIOCGIWMODE */
- (iw_handler) NULL, /* SIOCSIWSENS */
- (iw_handler) NULL, /* SIOCGIWSENS */
- (iw_handler) NULL, /* SIOCSIWRANGE */
- (iw_handler) atmel_get_range, /* SIOCGIWRANGE */
- (iw_handler) NULL, /* SIOCSIWPRIV */
- (iw_handler) NULL, /* SIOCGIWPRIV */
- (iw_handler) NULL, /* SIOCSIWSTATS */
- (iw_handler) NULL, /* SIOCGIWSTATS */
- (iw_handler) NULL, /* SIOCSIWSPY */
- (iw_handler) NULL, /* SIOCGIWSPY */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) atmel_set_wap, /* SIOCSIWAP */
- (iw_handler) atmel_get_wap, /* SIOCGIWAP */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* SIOCGIWAPLIST */
- (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */
- (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */
- (iw_handler) atmel_set_essid, /* SIOCSIWESSID */
- (iw_handler) atmel_get_essid, /* SIOCGIWESSID */
- (iw_handler) NULL, /* SIOCSIWNICKN */
- (iw_handler) NULL, /* SIOCGIWNICKN */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) atmel_set_rate, /* SIOCSIWRATE */
- (iw_handler) atmel_get_rate, /* SIOCGIWRATE */
- (iw_handler) atmel_set_rts, /* SIOCSIWRTS */
- (iw_handler) atmel_get_rts, /* SIOCGIWRTS */
- (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */
- (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */
- (iw_handler) NULL, /* SIOCSIWTXPOW */
- (iw_handler) NULL, /* SIOCGIWTXPOW */
- (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */
- (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */
- (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */
- (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */
- (iw_handler) atmel_set_power, /* SIOCSIWPOWER */
- (iw_handler) atmel_get_power, /* SIOCGIWPOWER */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* SIOCSIWGENIE */
- (iw_handler) NULL, /* SIOCGIWGENIE */
- (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */
- (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */
- (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */
- (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */
- (iw_handler) NULL, /* SIOCSIWPMKSA */
-};
-
-static const iw_handler atmel_private_handler[] =
-{
- NULL, /* SIOCIWFIRSTPRIV */
-};
-
-struct atmel_priv_ioctl {
- char id[32];
- unsigned char __user *data;
- unsigned short len;
-};
-
-#define ATMELFWL SIOCIWFIRSTPRIV
-#define ATMELIDIFC ATMELFWL + 1
-#define ATMELRD ATMELFWL + 2
-#define ATMELMAGIC 0x51807
-#define REGDOMAINSZ 20
-
-static const struct iw_priv_args atmel_private_args[] = {
- {
- .cmd = ATMELFWL,
- .set_args = IW_PRIV_TYPE_BYTE
- | IW_PRIV_SIZE_FIXED
- | sizeof(struct atmel_priv_ioctl),
- .get_args = IW_PRIV_TYPE_NONE,
- .name = "atmelfwl"
- }, {
- .cmd = ATMELIDIFC,
- .set_args = IW_PRIV_TYPE_NONE,
- .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
- .name = "atmelidifc"
- }, {
- .cmd = ATMELRD,
- .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ,
- .get_args = IW_PRIV_TYPE_NONE,
- .name = "regdomain"
- },
-};
-
-static const struct iw_handler_def atmel_handler_def = {
- .num_standard = ARRAY_SIZE(atmel_handler),
- .num_private = ARRAY_SIZE(atmel_private_handler),
- .num_private_args = ARRAY_SIZE(atmel_private_args),
- .standard = (iw_handler *) atmel_handler,
- .private = (iw_handler *) atmel_private_handler,
- .private_args = (struct iw_priv_args *) atmel_private_args,
- .get_wireless_stats = atmel_get_wireless_stats
-};
-
-static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- int i, rc = 0;
- struct atmel_private *priv = netdev_priv(dev);
- struct atmel_priv_ioctl com;
- struct iwreq *wrq = (struct iwreq *) rq;
- unsigned char *new_firmware;
- char domain[REGDOMAINSZ + 1];
-
- switch (cmd) {
- case ATMELIDIFC:
- wrq->u.param.value = ATMELMAGIC;
- break;
-
- case ATMELFWL:
- if (copy_from_user(&com, rq->ifr_data, sizeof(com))) {
- rc = -EFAULT;
- break;
- }
-
- if (!capable(CAP_NET_ADMIN)) {
- rc = -EPERM;
- break;
- }
-
- if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) {
- rc = -ENOMEM;
- break;
- }
-
- if (copy_from_user(new_firmware, com.data, com.len)) {
- kfree(new_firmware);
- rc = -EFAULT;
- break;
- }
-
- kfree(priv->firmware);
-
- priv->firmware = new_firmware;
- priv->firmware_length = com.len;
- strncpy(priv->firmware_id, com.id, 31);
- priv->firmware_id[31] = '\0';
- break;
-
- case ATMELRD:
- if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) {
- rc = -EFAULT;
- break;
- }
-
- if (!capable(CAP_NET_ADMIN)) {
- rc = -EPERM;
- break;
- }
-
- domain[REGDOMAINSZ] = 0;
- rc = -EINVAL;
- for (i = 0; i < ARRAY_SIZE(channel_table); i++) {
- if (!strcasecmp(channel_table[i].name, domain)) {
- priv->config_reg_domain = channel_table[i].reg_domain;
- rc = 0;
- }
- }
-
- if (rc == 0 && priv->station_state != STATION_STATE_DOWN)
- rc = atmel_open(dev);
- break;
-
- default:
- rc = -EOPNOTSUPP;
- }
-
- return rc;
-}
-
-struct auth_body {
- __le16 alg;
- __le16 trans_seq;
- __le16 status;
- u8 el_id;
- u8 chall_text_len;
- u8 chall_text[253];
-};
-
-static void atmel_enter_state(struct atmel_private *priv, int new_state)
-{
- int old_state = priv->station_state;
-
- if (new_state == old_state)
- return;
-
- priv->station_state = new_state;
-
- if (new_state == STATION_STATE_READY) {
- netif_start_queue(priv->dev);
- netif_carrier_on(priv->dev);
- }
-
- if (old_state == STATION_STATE_READY) {
- netif_carrier_off(priv->dev);
- if (netif_running(priv->dev))
- netif_stop_queue(priv->dev);
- priv->last_beacon_timestamp = 0;
- }
-}
-
-static void atmel_scan(struct atmel_private *priv, int specific_ssid)
-{
- struct {
- u8 BSSID[ETH_ALEN];
- u8 SSID[MAX_SSID_LENGTH];
- u8 scan_type;
- u8 channel;
- __le16 BSS_type;
- __le16 min_channel_time;
- __le16 max_channel_time;
- u8 options;
- u8 SSID_size;
- } cmd;
-
- eth_broadcast_addr(cmd.BSSID);
-
- if (priv->fast_scan) {
- cmd.SSID_size = priv->SSID_size;
- memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
- cmd.min_channel_time = cpu_to_le16(10);
- cmd.max_channel_time = cpu_to_le16(50);
- } else {
- priv->BSS_list_entries = 0;
- cmd.SSID_size = 0;
- cmd.min_channel_time = cpu_to_le16(10);
- cmd.max_channel_time = cpu_to_le16(120);
- }
-
- cmd.options = 0;
-
- if (!specific_ssid)
- cmd.options |= SCAN_OPTIONS_SITE_SURVEY;
-
- cmd.channel = (priv->channel & 0x7f);
- cmd.scan_type = SCAN_TYPE_ACTIVE;
- cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ?
- BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE);
-
- atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd));
-
- /* This must come after all hardware access to avoid being messed up
- by stuff happening in interrupt context after we leave STATE_DOWN */
- atmel_enter_state(priv, STATION_STATE_SCANNING);
-}
-
-static void join(struct atmel_private *priv, int type)
-{
- struct {
- u8 BSSID[6];
- u8 SSID[MAX_SSID_LENGTH];
- u8 BSS_type; /* this is a short in a scan command - weird */
- u8 channel;
- __le16 timeout;
- u8 SSID_size;
- u8 reserved;
- } cmd;
-
- cmd.SSID_size = priv->SSID_size;
- memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
- memcpy(cmd.BSSID, priv->CurrentBSSID, ETH_ALEN);
- cmd.channel = (priv->channel & 0x7f);
- cmd.BSS_type = type;
- cmd.timeout = cpu_to_le16(2000);
-
- atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd));
-}
-
-static void start(struct atmel_private *priv, int type)
-{
- struct {
- u8 BSSID[6];
- u8 SSID[MAX_SSID_LENGTH];
- u8 BSS_type;
- u8 channel;
- u8 SSID_size;
- u8 reserved[3];
- } cmd;
-
- cmd.SSID_size = priv->SSID_size;
- memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
- memcpy(cmd.BSSID, priv->BSSID, ETH_ALEN);
- cmd.BSS_type = type;
- cmd.channel = (priv->channel & 0x7f);
-
- atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd));
-}
-
-static void handle_beacon_probe(struct atmel_private *priv, u16 capability,
- u8 channel)
-{
- int rejoin = 0;
- int new = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
- SHORT_PREAMBLE : LONG_PREAMBLE;
-
- if (priv->preamble != new) {
- priv->preamble = new;
- rejoin = 1;
- atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new);
- }
-
- if (priv->channel != channel) {
- priv->channel = channel;
- rejoin = 1;
- atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel);
- }
-
- if (rejoin) {
- priv->station_is_associated = 0;
- atmel_enter_state(priv, STATION_STATE_JOINNING);
-
- if (priv->operating_mode == IW_MODE_INFRA)
- join(priv, BSS_TYPE_INFRASTRUCTURE);
- else
- join(priv, BSS_TYPE_AD_HOC);
- }
-}
-
-static void send_authentication_request(struct atmel_private *priv, u16 system,
- u8 *challenge, int challenge_len)
-{
- struct ieee80211_hdr header;
- struct auth_body auth;
-
- header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
- header.duration_id = cpu_to_le16(0x8000);
- header.seq_ctrl = 0;
- memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN);
- memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN);
- memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN);
-
- if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1)
- /* no WEP for authentication frames with TrSeqNo 1 */
- header.frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-
- auth.alg = cpu_to_le16(system);
-
- auth.status = 0;
- auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum);
- priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1;
- priv->CurrentAuthentTransactionSeqNum += 2;
-
- if (challenge_len != 0) {
- auth.el_id = 16; /* challenge_text */
- auth.chall_text_len = challenge_len;
- memcpy(auth.chall_text, challenge, challenge_len);
- atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len);
- } else {
- atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6);
- }
-}
-
-static void send_association_request(struct atmel_private *priv, int is_reassoc)
-{
- u8 *ssid_el_p;
- int bodysize;
- struct ieee80211_hdr header;
- struct ass_req_format {
- __le16 capability;
- __le16 listen_interval;
- u8 ap[ETH_ALEN]; /* nothing after here directly accessible */
- u8 ssid_el_id;
- u8 ssid_len;
- u8 ssid[MAX_SSID_LENGTH];
- u8 sup_rates_el_id;
- u8 sup_rates_len;
- u8 rates[4];
- } body;
-
- header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ));
- header.duration_id = cpu_to_le16(0x8000);
- header.seq_ctrl = 0;
-
- memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN);
- memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN);
- memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN);
-
- body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
- if (priv->wep_is_on)
- body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
- if (priv->preamble == SHORT_PREAMBLE)
- body.capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
-
- body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period);
-
- /* current AP address - only in reassoc frame */
- if (is_reassoc) {
- memcpy(body.ap, priv->CurrentBSSID, ETH_ALEN);
- ssid_el_p = &body.ssid_el_id;
- bodysize = 18 + priv->SSID_size;
- } else {
- ssid_el_p = &body.ap[0];
- bodysize = 12 + priv->SSID_size;
- }
-
- ssid_el_p[0] = WLAN_EID_SSID;
- ssid_el_p[1] = priv->SSID_size;
- memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size);
- ssid_el_p[2 + priv->SSID_size] = WLAN_EID_SUPP_RATES;
- ssid_el_p[3 + priv->SSID_size] = 4; /* len of supported rates */
- memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4);
-
- atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize);
-}
-
-static int is_frame_from_current_bss(struct atmel_private *priv,
- struct ieee80211_hdr *header)
-{
- if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
- return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0;
- else
- return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0;
-}
-
-static int retrieve_bss(struct atmel_private *priv)
-{
- int i;
- int max_rssi = -128;
- int max_index = -1;
-
- if (priv->BSS_list_entries == 0)
- return -1;
-
- if (priv->connect_to_any_BSS) {
- /* Select a BSS with the max-RSSI but of the same type and of
- the same WEP mode and that it is not marked as 'bad' (i.e.
- we had previously failed to connect to this BSS with the
- settings that we currently use) */
- priv->current_BSS = 0;
- for (i = 0; i < priv->BSS_list_entries; i++) {
- if (priv->operating_mode == priv->BSSinfo[i].BSStype &&
- ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) ||
- (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) &&
- !(priv->BSSinfo[i].channel & 0x80)) {
- max_rssi = priv->BSSinfo[i].RSSI;
- priv->current_BSS = max_index = i;
- }
- }
- return max_index;
- }
-
- for (i = 0; i < priv->BSS_list_entries; i++) {
- if (priv->SSID_size == priv->BSSinfo[i].SSIDsize &&
- memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 &&
- priv->operating_mode == priv->BSSinfo[i].BSStype &&
- atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) {
- if (priv->BSSinfo[i].RSSI >= max_rssi) {
- max_rssi = priv->BSSinfo[i].RSSI;
- max_index = i;
- }
- }
- }
- return max_index;
-}
-
-static void store_bss_info(struct atmel_private *priv,
- struct ieee80211_hdr *header, u16 capability,
- u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len,
- u8 *ssid, int is_beacon)
-{
- u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3;
- int i, index;
-
- for (index = -1, i = 0; i < priv->BSS_list_entries; i++)
- if (memcmp(bss, priv->BSSinfo[i].BSSID, ETH_ALEN) == 0)
- index = i;
-
- /* If we process a probe and an entry from this BSS exists
- we will update the BSS entry with the info from this BSS.
- If we process a beacon we will only update RSSI */
-
- if (index == -1) {
- if (priv->BSS_list_entries == MAX_BSS_ENTRIES)
- return;
- index = priv->BSS_list_entries++;
- memcpy(priv->BSSinfo[index].BSSID, bss, ETH_ALEN);
- priv->BSSinfo[index].RSSI = rssi;
- } else {
- if (rssi > priv->BSSinfo[index].RSSI)
- priv->BSSinfo[index].RSSI = rssi;
- if (is_beacon)
- return;
- }
-
- priv->BSSinfo[index].channel = channel;
- priv->BSSinfo[index].beacon_period = beacon_period;
- priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY;
- memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len);
- priv->BSSinfo[index].SSIDsize = ssid_len;
-
- if (capability & WLAN_CAPABILITY_IBSS)
- priv->BSSinfo[index].BSStype = IW_MODE_ADHOC;
- else if (capability & WLAN_CAPABILITY_ESS)
- priv->BSSinfo[index].BSStype = IW_MODE_INFRA;
-
- priv->BSSinfo[index].preamble = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
- SHORT_PREAMBLE : LONG_PREAMBLE;
-}
-
-static void authenticate(struct atmel_private *priv, u16 frame_len)
-{
- struct auth_body *auth = (struct auth_body *)priv->rx_buf;
- u16 status = le16_to_cpu(auth->status);
- u16 trans_seq_no = le16_to_cpu(auth->trans_seq);
- u16 system = le16_to_cpu(auth->alg);
-
- if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) {
- /* no WEP */
- if (priv->station_was_associated) {
- atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
- send_association_request(priv, 1);
- return;
- } else {
- atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
- send_association_request(priv, 0);
- return;
- }
- }
-
- if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) {
- int should_associate = 0;
- /* WEP */
- if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum)
- return;
-
- if (system == WLAN_AUTH_OPEN) {
- if (trans_seq_no == 0x0002) {
- should_associate = 1;
- }
- } else if (system == WLAN_AUTH_SHARED_KEY) {
- if (trans_seq_no == 0x0002 &&
- auth->el_id == WLAN_EID_CHALLENGE) {
- send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len);
- return;
- } else if (trans_seq_no == 0x0004) {
- should_associate = 1;
- }
- }
-
- if (should_associate) {
- if (priv->station_was_associated) {
- atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
- send_association_request(priv, 1);
- return;
- } else {
- atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
- send_association_request(priv, 0);
- return;
- }
- }
- }
-
- if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
- /* Flip back and forth between WEP auth modes until the max
- * authentication tries has been exceeded.
- */
- if (system == WLAN_AUTH_OPEN) {
- priv->CurrentAuthentTransactionSeqNum = 0x001;
- priv->exclude_unencrypted = 1;
- send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0);
- return;
- } else if (system == WLAN_AUTH_SHARED_KEY
- && priv->wep_is_on) {
- priv->CurrentAuthentTransactionSeqNum = 0x001;
- priv->exclude_unencrypted = 0;
- send_authentication_request(priv, WLAN_AUTH_OPEN, NULL, 0);
- return;
- } else if (priv->connect_to_any_BSS) {
- int bss_index;
-
- priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
-
- if ((bss_index = retrieve_bss(priv)) != -1) {
- atmel_join_bss(priv, bss_index);
- return;
- }
- }
- }
-
- priv->AuthenticationRequestRetryCnt = 0;
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- priv->station_is_associated = 0;
-}
-
-static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype)
-{
- struct ass_resp_format {
- __le16 capability;
- __le16 status;
- __le16 ass_id;
- u8 el_id;
- u8 length;
- u8 rates[4];
- } *ass_resp = (struct ass_resp_format *)priv->rx_buf;
-
- u16 status = le16_to_cpu(ass_resp->status);
- u16 ass_id = le16_to_cpu(ass_resp->ass_id);
- u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length;
-
- union iwreq_data wrqu;
-
- if (frame_len < 8 + rates_len)
- return;
-
- if (status == WLAN_STATUS_SUCCESS) {
- if (subtype == IEEE80211_STYPE_ASSOC_RESP)
- priv->AssociationRequestRetryCnt = 0;
- else
- priv->ReAssociationRequestRetryCnt = 0;
-
- atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
- MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff);
- atmel_set_mib(priv, Phy_Mib_Type,
- PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len);
- if (priv->power_mode == 0) {
- priv->listen_interval = 1;
- atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
- MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
- atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
- MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
- } else {
- priv->listen_interval = 2;
- atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
- MAC_MGMT_MIB_PS_MODE_POS, PS_MODE);
- atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
- MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2);
- }
-
- priv->station_is_associated = 1;
- priv->station_was_associated = 1;
- atmel_enter_state(priv, STATION_STATE_READY);
-
- /* Send association event to userspace */
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN);
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
-
- return;
- }
-
- if (subtype == IEEE80211_STYPE_ASSOC_RESP &&
- status != WLAN_STATUS_ASSOC_DENIED_RATES &&
- status != WLAN_STATUS_CAPS_UNSUPPORTED &&
- priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
- mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
- priv->AssociationRequestRetryCnt++;
- send_association_request(priv, 0);
- return;
- }
-
- if (subtype == IEEE80211_STYPE_REASSOC_RESP &&
- status != WLAN_STATUS_ASSOC_DENIED_RATES &&
- status != WLAN_STATUS_CAPS_UNSUPPORTED &&
- priv->ReAssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
- mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
- priv->ReAssociationRequestRetryCnt++;
- send_association_request(priv, 1);
- return;
- }
-
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- priv->station_is_associated = 0;
-
- if (priv->connect_to_any_BSS) {
- int bss_index;
- priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
-
- if ((bss_index = retrieve_bss(priv)) != -1)
- atmel_join_bss(priv, bss_index);
- }
-}
-
-static void atmel_join_bss(struct atmel_private *priv, int bss_index)
-{
- struct bss_info *bss = &priv->BSSinfo[bss_index];
-
- memcpy(priv->CurrentBSSID, bss->BSSID, ETH_ALEN);
- memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize);
-
- /* The WPA stuff cares about the current AP address */
- if (priv->use_wpa)
- build_wpa_mib(priv);
-
- /* When switching to AdHoc turn OFF Power Save if needed */
-
- if (bss->BSStype == IW_MODE_ADHOC &&
- priv->operating_mode != IW_MODE_ADHOC &&
- priv->power_mode) {
- priv->power_mode = 0;
- priv->listen_interval = 1;
- atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
- MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
- atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
- MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
- }
-
- priv->operating_mode = bss->BSStype;
- priv->channel = bss->channel & 0x7f;
- priv->beacon_period = bss->beacon_period;
-
- if (priv->preamble != bss->preamble) {
- priv->preamble = bss->preamble;
- atmel_set_mib8(priv, Local_Mib_Type,
- LOCAL_MIB_PREAMBLE_TYPE, bss->preamble);
- }
-
- if (!priv->wep_is_on && bss->UsingWEP) {
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- priv->station_is_associated = 0;
- return;
- }
-
- if (priv->wep_is_on && !bss->UsingWEP) {
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- priv->station_is_associated = 0;
- return;
- }
-
- atmel_enter_state(priv, STATION_STATE_JOINNING);
-
- if (priv->operating_mode == IW_MODE_INFRA)
- join(priv, BSS_TYPE_INFRASTRUCTURE);
- else
- join(priv, BSS_TYPE_AD_HOC);
-}
-
-static void restart_search(struct atmel_private *priv)
-{
- int bss_index;
-
- if (!priv->connect_to_any_BSS) {
- atmel_scan(priv, 1);
- } else {
- priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
-
- if ((bss_index = retrieve_bss(priv)) != -1)
- atmel_join_bss(priv, bss_index);
- else
- atmel_scan(priv, 0);
- }
-}
-
-static void smooth_rssi(struct atmel_private *priv, u8 rssi)
-{
- u8 old = priv->wstats.qual.level;
- u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */
-
- switch (priv->firmware_type) {
- case ATMEL_FW_TYPE_502E:
- max_rssi = 63; /* 502-rmfd-reve max by experiment */
- break;
- default:
- break;
- }
-
- rssi = rssi * 100 / max_rssi;
- if ((rssi + old) % 2)
- priv->wstats.qual.level = (rssi + old) / 2 + 1;
- else
- priv->wstats.qual.level = (rssi + old) / 2;
- priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
- priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID;
-}
-
-static void atmel_smooth_qual(struct atmel_private *priv)
-{
- unsigned long time_diff = (jiffies - priv->last_qual) / HZ;
- while (time_diff--) {
- priv->last_qual += HZ;
- priv->wstats.qual.qual = priv->wstats.qual.qual / 2;
- priv->wstats.qual.qual +=
- priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000;
- priv->beacons_this_sec = 0;
- }
- priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
- priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID;
-}
-
-/* deals with incoming management frames. */
-static void atmel_management_frame(struct atmel_private *priv,
- struct ieee80211_hdr *header,
- u16 frame_len, u8 rssi)
-{
- u16 subtype;
-
- subtype = le16_to_cpu(header->frame_control) & IEEE80211_FCTL_STYPE;
- switch (subtype) {
- case IEEE80211_STYPE_BEACON:
- case IEEE80211_STYPE_PROBE_RESP:
-
- /* beacon frame has multiple variable-length fields -
- never let an engineer loose with a data structure design. */
- {
- struct beacon_format {
- __le64 timestamp;
- __le16 interval;
- __le16 capability;
- u8 ssid_el_id;
- u8 ssid_length;
- /* ssid here */
- u8 rates_el_id;
- u8 rates_length;
- /* rates here */
- u8 ds_el_id;
- u8 ds_length;
- /* ds here */
- } *beacon = (struct beacon_format *)priv->rx_buf;
-
- u8 channel, rates_length, ssid_length;
- u64 timestamp = le64_to_cpu(beacon->timestamp);
- u16 beacon_interval = le16_to_cpu(beacon->interval);
- u16 capability = le16_to_cpu(beacon->capability);
- u8 *beaconp = priv->rx_buf;
- ssid_length = beacon->ssid_length;
- /* this blows chunks. */
- if (frame_len < 14 || frame_len < ssid_length + 15)
- return;
- rates_length = beaconp[beacon->ssid_length + 15];
- if (frame_len < ssid_length + rates_length + 18)
- return;
- if (ssid_length > MAX_SSID_LENGTH)
- return;
- channel = beaconp[ssid_length + rates_length + 18];
-
- if (priv->station_state == STATION_STATE_READY) {
- smooth_rssi(priv, rssi);
- if (is_frame_from_current_bss(priv, header)) {
- priv->beacons_this_sec++;
- atmel_smooth_qual(priv);
- if (priv->last_beacon_timestamp) {
- /* Note truncate this to 32 bits - kernel can't divide a long long */
- u32 beacon_delay = timestamp - priv->last_beacon_timestamp;
- int beacons = beacon_delay / (beacon_interval * 1000);
- if (beacons > 1)
- priv->wstats.miss.beacon += beacons - 1;
- }
- priv->last_beacon_timestamp = timestamp;
- handle_beacon_probe(priv, capability, channel);
- }
- }
-
- if (priv->station_state == STATION_STATE_SCANNING)
- store_bss_info(priv, header, capability,
- beacon_interval, channel, rssi,
- ssid_length,
- &beacon->rates_el_id,
- subtype == IEEE80211_STYPE_BEACON);
- }
- break;
-
- case IEEE80211_STYPE_AUTH:
-
- if (priv->station_state == STATION_STATE_AUTHENTICATING)
- authenticate(priv, frame_len);
-
- break;
-
- case IEEE80211_STYPE_ASSOC_RESP:
- case IEEE80211_STYPE_REASSOC_RESP:
-
- if (priv->station_state == STATION_STATE_ASSOCIATING ||
- priv->station_state == STATION_STATE_REASSOCIATING)
- associate(priv, frame_len, subtype);
-
- break;
-
- case IEEE80211_STYPE_DISASSOC:
- if (priv->station_is_associated &&
- priv->operating_mode == IW_MODE_INFRA &&
- is_frame_from_current_bss(priv, header)) {
- priv->station_was_associated = 0;
- priv->station_is_associated = 0;
-
- atmel_enter_state(priv, STATION_STATE_JOINNING);
- join(priv, BSS_TYPE_INFRASTRUCTURE);
- }
-
- break;
-
- case IEEE80211_STYPE_DEAUTH:
- if (priv->operating_mode == IW_MODE_INFRA &&
- is_frame_from_current_bss(priv, header)) {
- priv->station_was_associated = 0;
-
- atmel_enter_state(priv, STATION_STATE_JOINNING);
- join(priv, BSS_TYPE_INFRASTRUCTURE);
- }
-
- break;
- }
-}
-
-/* run when timer expires */
-static void atmel_management_timer(u_long a)
-{
- struct net_device *dev = (struct net_device *) a;
- struct atmel_private *priv = netdev_priv(dev);
- unsigned long flags;
-
- /* Check if the card has been yanked. */
- if (priv->card && priv->present_callback &&
- !(*priv->present_callback)(priv->card))
- return;
-
- spin_lock_irqsave(&priv->irqlock, flags);
-
- switch (priv->station_state) {
-
- case STATION_STATE_AUTHENTICATING:
- if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) {
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- priv->station_is_associated = 0;
- priv->AuthenticationRequestRetryCnt = 0;
- restart_search(priv);
- } else {
- int auth = WLAN_AUTH_OPEN;
- priv->AuthenticationRequestRetryCnt++;
- priv->CurrentAuthentTransactionSeqNum = 0x0001;
- mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
- if (priv->wep_is_on && priv->exclude_unencrypted)
- auth = WLAN_AUTH_SHARED_KEY;
- send_authentication_request(priv, auth, NULL, 0);
- }
- break;
-
- case STATION_STATE_ASSOCIATING:
- if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- priv->station_is_associated = 0;
- priv->AssociationRequestRetryCnt = 0;
- restart_search(priv);
- } else {
- priv->AssociationRequestRetryCnt++;
- mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
- send_association_request(priv, 0);
- }
- break;
-
- case STATION_STATE_REASSOCIATING:
- if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
- atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
- priv->station_is_associated = 0;
- priv->ReAssociationRequestRetryCnt = 0;
- restart_search(priv);
- } else {
- priv->ReAssociationRequestRetryCnt++;
- mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
- send_association_request(priv, 1);
- }
- break;
-
- default:
- break;
- }
-
- spin_unlock_irqrestore(&priv->irqlock, flags);
-}
-
-static void atmel_command_irq(struct atmel_private *priv)
-{
- u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
- u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET));
- int fast_scan;
- union iwreq_data wrqu;
-
- if (status == CMD_STATUS_IDLE ||
- status == CMD_STATUS_IN_PROGRESS)
- return;
-
- switch (command) {
- case CMD_Start:
- if (status == CMD_STATUS_COMPLETE) {
- priv->station_was_associated = priv->station_is_associated;
- atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
- (u8 *)priv->CurrentBSSID, 6);
- atmel_enter_state(priv, STATION_STATE_READY);
- }
- break;
-
- case CMD_Scan:
- fast_scan = priv->fast_scan;
- priv->fast_scan = 0;
-
- if (status != CMD_STATUS_COMPLETE) {
- atmel_scan(priv, 1);
- } else {
- int bss_index = retrieve_bss(priv);
- int notify_scan_complete = 1;
- if (bss_index != -1) {
- atmel_join_bss(priv, bss_index);
- } else if (priv->operating_mode == IW_MODE_ADHOC &&
- priv->SSID_size != 0) {
- start(priv, BSS_TYPE_AD_HOC);
- } else {
- priv->fast_scan = !fast_scan;
- atmel_scan(priv, 1);
- notify_scan_complete = 0;
- }
- priv->site_survey_state = SITE_SURVEY_COMPLETED;
- if (notify_scan_complete) {
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
- }
- }
- break;
-
- case CMD_SiteSurvey:
- priv->fast_scan = 0;
-
- if (status != CMD_STATUS_COMPLETE)
- return;
-
- priv->site_survey_state = SITE_SURVEY_COMPLETED;
- if (priv->station_is_associated) {
- atmel_enter_state(priv, STATION_STATE_READY);
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
- } else {
- atmel_scan(priv, 1);
- }
- break;
-
- case CMD_Join:
- if (status == CMD_STATUS_COMPLETE) {
- if (priv->operating_mode == IW_MODE_ADHOC) {
- priv->station_was_associated = priv->station_is_associated;
- atmel_enter_state(priv, STATION_STATE_READY);
- } else {
- int auth = WLAN_AUTH_OPEN;
- priv->AuthenticationRequestRetryCnt = 0;
- atmel_enter_state(priv, STATION_STATE_AUTHENTICATING);
-
- mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
- priv->CurrentAuthentTransactionSeqNum = 0x0001;
- if (priv->wep_is_on && priv->exclude_unencrypted)
- auth = WLAN_AUTH_SHARED_KEY;
- send_authentication_request(priv, auth, NULL, 0);
- }
- return;
- }
-
- atmel_scan(priv, 1);
- }
-}
-
-static int atmel_wakeup_firmware(struct atmel_private *priv)
-{
- struct host_info_struct *iface = &priv->host_info;
- u16 mr1, mr3;
- int i;
-
- if (priv->card_type == CARD_TYPE_SPI_FLASH)
- atmel_set_gcr(priv->dev, GCR_REMAP);
-
- /* wake up on-board processor */
- atmel_clear_gcr(priv->dev, 0x0040);
- atmel_write16(priv->dev, BSR, BSS_SRAM);
-
- if (priv->card_type == CARD_TYPE_SPI_FLASH)
- mdelay(100);
-
- /* and wait for it */
- for (i = LOOP_RETRY_LIMIT; i; i--) {
- mr1 = atmel_read16(priv->dev, MR1);
- mr3 = atmel_read16(priv->dev, MR3);
-
- if (mr3 & MAC_BOOT_COMPLETE)
- break;
- if (mr1 & MAC_BOOT_COMPLETE &&
- priv->bus_type == BUS_TYPE_PCCARD)
- break;
- }
-
- if (i == 0) {
- printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name);
- return -EIO;
- }
-
- if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) {
- printk(KERN_ALERT "%s: card missing.\n", priv->dev->name);
- return -ENODEV;
- }
-
- /* now check for completion of MAC initialization through
- the FunCtrl field of the IFACE, poll MR1 to detect completion of
- MAC initialization, check completion status, set interrupt mask,
- enables interrupts and calls Tx and Rx initialization functions */
-
- atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE);
-
- for (i = LOOP_RETRY_LIMIT; i; i--) {
- mr1 = atmel_read16(priv->dev, MR1);
- mr3 = atmel_read16(priv->dev, MR3);
-
- if (mr3 & MAC_INIT_COMPLETE)
- break;
- if (mr1 & MAC_INIT_COMPLETE &&
- priv->bus_type == BUS_TYPE_PCCARD)
- break;
- }
-
- if (i == 0) {
- printk(KERN_ALERT "%s: MAC failed to initialise.\n",
- priv->dev->name);
- return -EIO;
- }
-
- /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */
- if ((mr3 & MAC_INIT_COMPLETE) &&
- !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) {
- printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name);
- return -EIO;
- }
- if ((mr1 & MAC_INIT_COMPLETE) &&
- !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) {
- printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name);
- return -EIO;
- }
-
- atmel_copy_to_host(priv->dev, (unsigned char *)iface,
- priv->host_info_base, sizeof(*iface));
-
- iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos);
- iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size);
- iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos);
- iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count);
- iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos);
- iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size);
- iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos);
- iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count);
- iface->build_version = le16_to_cpu(iface->build_version);
- iface->command_pos = le16_to_cpu(iface->command_pos);
- iface->major_version = le16_to_cpu(iface->major_version);
- iface->minor_version = le16_to_cpu(iface->minor_version);
- iface->func_ctrl = le16_to_cpu(iface->func_ctrl);
- iface->mac_status = le16_to_cpu(iface->mac_status);
-
- return 0;
-}
-
-/* determine type of memory and MAC address */
-static int probe_atmel_card(struct net_device *dev)
-{
- int rc = 0;
- struct atmel_private *priv = netdev_priv(dev);
-
- /* reset pccard */
- if (priv->bus_type == BUS_TYPE_PCCARD)
- atmel_write16(dev, GCR, 0x0060);
-
- atmel_write16(dev, GCR, 0x0040);
- mdelay(500);
-
- if (atmel_read16(dev, MR2) == 0) {
- /* No stored firmware so load a small stub which just
- tells us the MAC address */
- int i;
- priv->card_type = CARD_TYPE_EEPROM;
- atmel_write16(dev, BSR, BSS_IRAM);
- atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader));
- atmel_set_gcr(dev, GCR_REMAP);
- atmel_clear_gcr(priv->dev, 0x0040);
- atmel_write16(dev, BSR, BSS_SRAM);
- for (i = LOOP_RETRY_LIMIT; i; i--)
- if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE)
- break;
- if (i == 0) {
- printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name);
- } else {
- atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6);
- /* got address, now squash it again until the network
- interface is opened */
- if (priv->bus_type == BUS_TYPE_PCCARD)
- atmel_write16(dev, GCR, 0x0060);
- atmel_write16(dev, GCR, 0x0040);
- rc = 1;
- }
- } else if (atmel_read16(dev, MR4) == 0) {
- /* Mac address easy in this case. */
- priv->card_type = CARD_TYPE_PARALLEL_FLASH;
- atmel_write16(dev, BSR, 1);
- atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6);
- atmel_write16(dev, BSR, 0x200);
- rc = 1;
- } else {
- /* Standard firmware in flash, boot it up and ask
- for the Mac Address */
- priv->card_type = CARD_TYPE_SPI_FLASH;
- if (atmel_wakeup_firmware(priv) == 0) {
- atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6);
-
- /* got address, now squash it again until the network
- interface is opened */
- if (priv->bus_type == BUS_TYPE_PCCARD)
- atmel_write16(dev, GCR, 0x0060);
- atmel_write16(dev, GCR, 0x0040);
- rc = 1;
- }
- }
-
- if (rc) {
- if (dev->dev_addr[0] == 0xFF) {
- static const u8 default_mac[] = {
- 0x00, 0x04, 0x25, 0x00, 0x00, 0x00
- };
- printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name);
- memcpy(dev->dev_addr, default_mac, ETH_ALEN);
- }
- }
-
- return rc;
-}
-
-/* Move the encyption information on the MIB structure.
- This routine is for the pre-WPA firmware: later firmware has
- a different format MIB and a different routine. */
-static void build_wep_mib(struct atmel_private *priv)
-{
- struct { /* NB this is matched to the hardware, don't change. */
- u8 wep_is_on;
- u8 default_key; /* 0..3 */
- u8 reserved;
- u8 exclude_unencrypted;
-
- u32 WEPICV_error_count;
- u32 WEP_excluded_count;
-
- u8 wep_keys[MAX_ENCRYPTION_KEYS][13];
- u8 encryption_level; /* 0, 1, 2 */
- u8 reserved2[3];
- } mib;
- int i;
-
- mib.wep_is_on = priv->wep_is_on;
- if (priv->wep_is_on) {
- if (priv->wep_key_len[priv->default_key] > 5)
- mib.encryption_level = 2;
- else
- mib.encryption_level = 1;
- } else {
- mib.encryption_level = 0;
- }
-
- mib.default_key = priv->default_key;
- mib.exclude_unencrypted = priv->exclude_unencrypted;
-
- for (i = 0; i < MAX_ENCRYPTION_KEYS; i++)
- memcpy(mib.wep_keys[i], priv->wep_keys[i], 13);
-
- atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
-}
-
-static void build_wpa_mib(struct atmel_private *priv)
-{
- /* This is for the later (WPA enabled) firmware. */
-
- struct { /* NB this is matched to the hardware, don't change. */
- u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
- u8 receiver_address[ETH_ALEN];
- u8 wep_is_on;
- u8 default_key; /* 0..3 */
- u8 group_key;
- u8 exclude_unencrypted;
- u8 encryption_type;
- u8 reserved;
-
- u32 WEPICV_error_count;
- u32 WEP_excluded_count;
-
- u8 key_RSC[4][8];
- } mib;
-
- int i;
-
- mib.wep_is_on = priv->wep_is_on;
- mib.exclude_unencrypted = priv->exclude_unencrypted;
- memcpy(mib.receiver_address, priv->CurrentBSSID, ETH_ALEN);
-
- /* zero all the keys before adding in valid ones. */
- memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value));
-
- if (priv->wep_is_on) {
- /* There's a comment in the Atmel code to the effect that this
- is only valid when still using WEP, it may need to be set to
- something to use WPA */
- memset(mib.key_RSC, 0, sizeof(mib.key_RSC));
-
- mib.default_key = mib.group_key = 255;
- for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) {
- if (priv->wep_key_len[i] > 0) {
- memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE);
- if (i == priv->default_key) {
- mib.default_key = i;
- mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7;
- mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite;
- } else {
- mib.group_key = i;
- priv->group_cipher_suite = priv->pairwise_cipher_suite;
- mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1;
- mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite;
- }
- }
- }
- if (mib.default_key == 255)
- mib.default_key = mib.group_key != 255 ? mib.group_key : 0;
- if (mib.group_key == 255)
- mib.group_key = mib.default_key;
-
- }
-
- atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
-}
-
-static int reset_atmel_card(struct net_device *dev)
-{
- /* do everything necessary to wake up the hardware, including
- waiting for the lightning strike and throwing the knife switch....
-
- set all the Mib values which matter in the card to match
- their settings in the atmel_private structure. Some of these
- can be altered on the fly, but many (WEP, infrastucture or ad-hoc)
- can only be changed by tearing down the world and coming back through
- here.
-
- This routine is also responsible for initialising some
- hardware-specific fields in the atmel_private structure,
- including a copy of the firmware's hostinfo structure
- which is the route into the rest of the firmware datastructures. */
-
- struct atmel_private *priv = netdev_priv(dev);
- u8 configuration;
- int old_state = priv->station_state;
- int err = 0;
-
- /* data to add to the firmware names, in priority order
- this implemenents firmware versioning */
-
- static char *firmware_modifier[] = {
- "-wpa",
- "",
- NULL
- };
-
- /* reset pccard */
- if (priv->bus_type == BUS_TYPE_PCCARD)
- atmel_write16(priv->dev, GCR, 0x0060);
-
- /* stop card , disable interrupts */
- atmel_write16(priv->dev, GCR, 0x0040);
-
- if (priv->card_type == CARD_TYPE_EEPROM) {
- /* copy in firmware if needed */
- const struct firmware *fw_entry = NULL;
- const unsigned char *fw;
- int len = priv->firmware_length;
- if (!(fw = priv->firmware)) {
- if (priv->firmware_type == ATMEL_FW_TYPE_NONE) {
- if (strlen(priv->firmware_id) == 0) {
- printk(KERN_INFO
- "%s: card type is unknown: assuming at76c502 firmware is OK.\n",
- dev->name);
- printk(KERN_INFO
- "%s: if not, use the firmware= module parameter.\n",
- dev->name);
- strcpy(priv->firmware_id, "atmel_at76c502.bin");
- }
- err = request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev);
- if (err != 0) {
- printk(KERN_ALERT
- "%s: firmware %s is missing, cannot continue.\n",
- dev->name, priv->firmware_id);
- return err;
- }
- } else {
- int fw_index = 0;
- int success = 0;
-
- /* get firmware filename entry based on firmware type ID */
- while (fw_table[fw_index].fw_type != priv->firmware_type
- && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE)
- fw_index++;
-
- /* construct the actual firmware file name */
- if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) {
- int i;
- for (i = 0; firmware_modifier[i]; i++) {
- snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file,
- firmware_modifier[i], fw_table[fw_index].fw_file_ext);
- priv->firmware_id[31] = '\0';
- if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) {
- success = 1;
- break;
- }
- }
- }
- if (!success) {
- printk(KERN_ALERT
- "%s: firmware %s is missing, cannot start.\n",
- dev->name, priv->firmware_id);
- priv->firmware_id[0] = '\0';
- return -ENOENT;
- }
- }
-
- fw = fw_entry->data;
- len = fw_entry->size;
- }
-
- if (len <= 0x6000) {
- atmel_write16(priv->dev, BSR, BSS_IRAM);
- atmel_copy_to_card(priv->dev, 0, fw, len);
- atmel_set_gcr(priv->dev, GCR_REMAP);
- } else {
- /* Remap */
- atmel_set_gcr(priv->dev, GCR_REMAP);
- atmel_write16(priv->dev, BSR, BSS_IRAM);
- atmel_copy_to_card(priv->dev, 0, fw, 0x6000);
- atmel_write16(priv->dev, BSR, 0x2ff);
- atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000);
- }
-
- release_firmware(fw_entry);
- }
-
- err = atmel_wakeup_firmware(priv);
- if (err != 0)
- return err;
-
- /* Check the version and set the correct flag for wpa stuff,
- old and new firmware is incompatible.
- The pre-wpa 3com firmware reports major version 5,
- the wpa 3com firmware is major version 4 and doesn't need
- the 3com broken-ness filter. */
- priv->use_wpa = (priv->host_info.major_version == 4);
- priv->radio_on_broken = (priv->host_info.major_version == 5);
-
- /* unmask all irq sources */
- atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff);
-
- /* int Tx system and enable Tx */
- atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0);
- atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L);
- atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0);
- atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0);
-
- priv->tx_desc_free = priv->host_info.tx_desc_count;
- priv->tx_desc_head = 0;
- priv->tx_desc_tail = 0;
- priv->tx_desc_previous = 0;
- priv->tx_free_mem = priv->host_info.tx_buff_size;
- priv->tx_buff_head = 0;
- priv->tx_buff_tail = 0;
-
- configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
- atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
- configuration | FUNC_CTRL_TxENABLE);
-
- /* init Rx system and enable */
- priv->rx_desc_head = 0;
-
- configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
- atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
- configuration | FUNC_CTRL_RxENABLE);
-
- if (!priv->radio_on_broken) {
- if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) ==
- CMD_STATUS_REJECTED_RADIO_OFF) {
- printk(KERN_INFO "%s: cannot turn the radio on.\n",
- dev->name);
- return -EIO;
- }
- }
-
- /* set up enough MIB values to run. */
- atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate);
- atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF);
- atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold);
- atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold);
- atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry);
- atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry);
- atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble);
- atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS,
- priv->dev->dev_addr, 6);
- atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
- atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
- atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period);
- atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4);
- atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on);
- if (priv->use_wpa)
- build_wpa_mib(priv);
- else
- build_wep_mib(priv);
-
- if (old_state == STATION_STATE_READY) {
- union iwreq_data wrqu;
-
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- eth_zero_addr(wrqu.ap_addr.sa_data);
- wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
- }
-
- return 0;
-}
-
-static void atmel_send_command(struct atmel_private *priv, int command,
- void *cmd, int cmd_size)
-{
- if (cmd)
- atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET),
- cmd, cmd_size);
-
- atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command);
- atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0);
-}
-
-static int atmel_send_command_wait(struct atmel_private *priv, int command,
- void *cmd, int cmd_size)
-{
- int i, status;
-
- atmel_send_command(priv, command, cmd, cmd_size);
-
- for (i = 5000; i; i--) {
- status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
- if (status != CMD_STATUS_IDLE &&
- status != CMD_STATUS_IN_PROGRESS)
- break;
- udelay(20);
- }
-
- if (i == 0) {
- printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name);
- status = CMD_STATUS_HOST_ERROR;
- } else {
- if (command != CMD_EnableRadio)
- status = CMD_STATUS_COMPLETE;
- }
-
- return status;
-}
-
-static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index)
-{
- struct get_set_mib m;
- m.type = type;
- m.size = 1;
- m.index = index;
-
- atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
- return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE));
-}
-
-static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data)
-{
- struct get_set_mib m;
- m.type = type;
- m.size = 1;
- m.index = index;
- m.data[0] = data;
-
- atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
-}
-
-static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
- u16 data)
-{
- struct get_set_mib m;
- m.type = type;
- m.size = 2;
- m.index = index;
- m.data[0] = data;
- m.data[1] = data >> 8;
-
- atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2);
-}
-
-static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
- u8 *data, int data_len)
-{
- struct get_set_mib m;
- m.type = type;
- m.size = data_len;
- m.index = index;
-
- if (data_len > MIB_MAX_DATA_BYTES)
- printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
-
- memcpy(m.data, data, data_len);
- atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
-}
-
-static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
- u8 *data, int data_len)
-{
- struct get_set_mib m;
- m.type = type;
- m.size = data_len;
- m.index = index;
-
- if (data_len > MIB_MAX_DATA_BYTES)
- printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
-
- atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
- atmel_copy_to_host(priv->dev, data,
- atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len);
-}
-
-static void atmel_writeAR(struct net_device *dev, u16 data)
-{
- int i;
- outw(data, dev->base_addr + AR);
- /* Address register appears to need some convincing..... */
- for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++)
- outw(data, dev->base_addr + AR);
-}
-
-static void atmel_copy_to_card(struct net_device *dev, u16 dest,
- const unsigned char *src, u16 len)
-{
- int i;
- atmel_writeAR(dev, dest);
- if (dest % 2) {
- atmel_write8(dev, DR, *src);
- src++; len--;
- }
- for (i = len; i > 1 ; i -= 2) {
- u8 lb = *src++;
- u8 hb = *src++;
- atmel_write16(dev, DR, lb | (hb << 8));
- }
- if (i)
- atmel_write8(dev, DR, *src);
-}
-
-static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
- u16 src, u16 len)
-{
- int i;
- atmel_writeAR(dev, src);
- if (src % 2) {
- *dest = atmel_read8(dev, DR);
- dest++; len--;
- }
- for (i = len; i > 1 ; i -= 2) {
- u16 hw = atmel_read16(dev, DR);
- *dest++ = hw;
- *dest++ = hw >> 8;
- }
- if (i)
- *dest = atmel_read8(dev, DR);
-}
-
-static void atmel_set_gcr(struct net_device *dev, u16 mask)
-{
- outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR);
-}
-
-static void atmel_clear_gcr(struct net_device *dev, u16 mask)
-{
- outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR);
-}
-
-static int atmel_lock_mac(struct atmel_private *priv)
-{
- int i, j = 20;
- retry:
- for (i = 5000; i; i--) {
- if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET)))
- break;
- udelay(20);
- }
-
- if (!i)
- return 0; /* timed out */
-
- atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1);
- if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) {
- atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
- if (!j--)
- return 0; /* timed out */
- goto retry;
- }
-
- return 1;
-}
-
-static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data)
-{
- atmel_writeAR(priv->dev, pos);
- atmel_write16(priv->dev, DR, data); /* card is little-endian */
- atmel_write16(priv->dev, DR, data >> 16);
-}
-
-/***************************************************************************/
-/* There follows the source form of the MAC address reading firmware */
-/***************************************************************************/
-#if 0
-
-/* Copyright 2003 Matthew T. Russotto */
-/* But derived from the Atmel 76C502 firmware written by Atmel and */
-/* included in "atmel wireless lan drivers" package */
-/**
- This file is part of net.russotto.AtmelMACFW, hereto referred to
- as AtmelMACFW
-
- AtmelMACFW is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License version 2
- as published by the Free Software Foundation.
-
- AtmelMACFW is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with AtmelMACFW; if not, see <http://www.gnu.org/licenses/>.
-
-****************************************************************************/
-/* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */
-/* It will probably work on the 76C504 and 76C502 RFMD_3COM */
-/* It only works on SPI EEPROM versions of the card. */
-
-/* This firmware initializes the SPI controller and clock, reads the MAC */
-/* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */
-/* address in MR2, and sets MR3 to 0x10 to indicate it is done */
-/* It also puts a complete copy of the EEPROM in SRAM with the offset in */
-/* MR4, for investigational purposes (maybe we can determine chip type */
-/* from that?) */
-
- .org 0
- .set MRBASE, 0x8000000
- .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */
- .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */
- .set SRAM_BASE, 0x02000000
- .set SP_BASE, 0x0F300000
- .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */
- .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */
- .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */
- .set STACK_BASE, 0x5600
- .set SP_SR, 0x10
- .set SP_TDRE, 2 /* status register bit -- TDR empty */
- .set SP_RDRF, 1 /* status register bit -- RDR full */
- .set SP_SWRST, 0x80
- .set SP_SPIEN, 0x1
- .set SP_CR, 0 /* control register */
- .set SP_MR, 4 /* mode register */
- .set SP_RDR, 0x08 /* Read Data Register */
- .set SP_TDR, 0x0C /* Transmit Data Register */
- .set SP_CSR0, 0x30 /* chip select registers */
- .set SP_CSR1, 0x34
- .set SP_CSR2, 0x38
- .set SP_CSR3, 0x3C
- .set NVRAM_CMD_RDSR, 5 /* read status register */
- .set NVRAM_CMD_READ, 3 /* read data */
- .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */
- .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the
- serial output, since SO is normally high. But it
- does cause 8 clock cycles and thus 8 bits to be
- clocked in to the chip. See Atmel's SPI
- controller (e.g. AT91M55800) timing and 4K
- SPI EEPROM manuals */
-
- .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */
- .set NVRAM_IMAGE, 0x02000200
- .set NVRAM_LENGTH, 0x0200
- .set MAC_ADDRESS_MIB, SRAM_BASE
- .set MAC_ADDRESS_LENGTH, 6
- .set MAC_BOOT_FLAG, 0x10
- .set MR1, 0
- .set MR2, 4
- .set MR3, 8
- .set MR4, 0xC
-RESET_VECTOR:
- b RESET_HANDLER
-UNDEF_VECTOR:
- b HALT1
-SWI_VECTOR:
- b HALT1
-IABORT_VECTOR:
- b HALT1
-DABORT_VECTOR:
-RESERVED_VECTOR:
- b HALT1
-IRQ_VECTOR:
- b HALT1
-FIQ_VECTOR:
- b HALT1
-HALT1: b HALT1
-RESET_HANDLER:
- mov r0, #CPSR_INITIAL
- msr CPSR_c, r0 /* This is probably unnecessary */
-
-/* I'm guessing this is initializing clock generator electronics for SPI */
- ldr r0, =SPI_CGEN_BASE
- mov r1, #0
- mov r1, r1, lsl #3
- orr r1, r1, #0
- str r1, [r0]
- ldr r1, [r0, #28]
- bic r1, r1, #16
- str r1, [r0, #28]
- mov r1, #1
- str r1, [r0, #8]
-
- ldr r0, =MRBASE
- mov r1, #0
- strh r1, [r0, #MR1]
- strh r1, [r0, #MR2]
- strh r1, [r0, #MR3]
- strh r1, [r0, #MR4]
-
- mov sp, #STACK_BASE
- bl SP_INIT
- mov r0, #10
- bl DELAY9
- bl GET_MAC_ADDR
- bl GET_WHOLE_NVRAM
- ldr r0, =MRBASE
- ldr r1, =MAC_ADDRESS_MIB
- strh r1, [r0, #MR2]
- ldr r1, =NVRAM_IMAGE
- strh r1, [r0, #MR4]
- mov r1, #MAC_BOOT_FLAG
- strh r1, [r0, #MR3]
-HALT2: b HALT2
-.func Get_Whole_NVRAM, GET_WHOLE_NVRAM
-GET_WHOLE_NVRAM:
- stmdb sp!, {lr}
- mov r2, #0 /* 0th bytes of NVRAM */
- mov r3, #NVRAM_LENGTH
- mov r1, #0 /* not used in routine */
- ldr r0, =NVRAM_IMAGE
- bl NVRAM_XFER
- ldmia sp!, {lr}
- bx lr
-.endfunc
-
-.func Get_MAC_Addr, GET_MAC_ADDR
-GET_MAC_ADDR:
- stmdb sp!, {lr}
- mov r2, #0x120 /* address of MAC Address within NVRAM */
- mov r3, #MAC_ADDRESS_LENGTH
- mov r1, #0 /* not used in routine */
- ldr r0, =MAC_ADDRESS_MIB
- bl NVRAM_XFER
- ldmia sp!, {lr}
- bx lr
-.endfunc
-.ltorg
-.func Delay9, DELAY9
-DELAY9:
- adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */
-DELAYLOOP:
- beq DELAY9_done
- subs r0, r0, #1
- b DELAYLOOP
-DELAY9_done:
- bx lr
-.endfunc
-
-.func SP_Init, SP_INIT
-SP_INIT:
- mov r1, #SP_SWRST
- ldr r0, =SP_BASE
- str r1, [r0, #SP_CR] /* reset the SPI */
- mov r1, #0
- str r1, [r0, #SP_CR] /* release SPI from reset state */
- mov r1, #SP_SPIEN
- str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/
- str r1, [r0, #SP_CR] /* enable the SPI */
-
-/* My guess would be this turns on the SPI clock */
- ldr r3, =SPI_CGEN_BASE
- ldr r1, [r3, #28]
- orr r1, r1, #0x2000
- str r1, [r3, #28]
-
- ldr r1, =0x2000c01
- str r1, [r0, #SP_CSR0]
- ldr r1, =0x2000201
- str r1, [r0, #SP_CSR1]
- str r1, [r0, #SP_CSR2]
- str r1, [r0, #SP_CSR3]
- ldr r1, [r0, #SP_SR]
- ldr r0, [r0, #SP_RDR]
- bx lr
-.endfunc
-.func NVRAM_Init, NVRAM_INIT
-NVRAM_INIT:
- ldr r1, =SP_BASE
- ldr r0, [r1, #SP_RDR]
- mov r0, #NVRAM_CMD_RDSR
- str r0, [r1, #SP_TDR]
-SP_loop1:
- ldr r0, [r1, #SP_SR]
- tst r0, #SP_TDRE
- beq SP_loop1
-
- mov r0, #SPI_8CLOCKS
- str r0, [r1, #SP_TDR]
-SP_loop2:
- ldr r0, [r1, #SP_SR]
- tst r0, #SP_TDRE
- beq SP_loop2
-
- ldr r0, [r1, #SP_RDR]
-SP_loop3:
- ldr r0, [r1, #SP_SR]
- tst r0, #SP_RDRF
- beq SP_loop3
-
- ldr r0, [r1, #SP_RDR]
- and r0, r0, #255
- bx lr
-.endfunc
-
-.func NVRAM_Xfer, NVRAM_XFER
- /* r0 = dest address */
- /* r1 = not used */
- /* r2 = src address within NVRAM */
- /* r3 = length */
-NVRAM_XFER:
- stmdb sp!, {r4, r5, lr}
- mov r5, r0 /* save r0 (dest address) */
- mov r4, r3 /* save r3 (length) */
- mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */
- and r0, r0, #8
- add r0, r0, #NVRAM_CMD_READ
- ldr r1, =NVRAM_SCRATCH
- strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */
- strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */
-_local1:
- bl NVRAM_INIT
- tst r0, #NVRAM_SR_RDY
- bne _local1
- mov r0, #20
- bl DELAY9
- mov r2, r4 /* length */
- mov r1, r5 /* dest address */
- mov r0, #2 /* bytes to transfer in command */
- bl NVRAM_XFER2
- ldmia sp!, {r4, r5, lr}
- bx lr
-.endfunc
-
-.func NVRAM_Xfer2, NVRAM_XFER2
-NVRAM_XFER2:
- stmdb sp!, {r4, r5, r6, lr}
- ldr r4, =SP_BASE
- mov r3, #0
- cmp r0, #0
- bls _local2
- ldr r5, =NVRAM_SCRATCH
-_local4:
- ldrb r6, [r5, r3]
- str r6, [r4, #SP_TDR]
-_local3:
- ldr r6, [r4, #SP_SR]
- tst r6, #SP_TDRE
- beq _local3
- add r3, r3, #1
- cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */
- blo _local4
-_local2:
- mov r3, #SPI_8CLOCKS
- str r3, [r4, #SP_TDR]
- ldr r0, [r4, #SP_RDR]
-_local5:
- ldr r0, [r4, #SP_SR]
- tst r0, #SP_RDRF
- beq _local5
- 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 */
- mov r0, #0
- cmp r2, #0 /* r2 is # of bytes to copy in */
- bls _local6
-_local7:
- ldr r5, [r4, #SP_SR]
- tst r5, #SP_TDRE
- beq _local7
- str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */
-_local8:
- ldr r5, [r4, #SP_SR]
- tst r5, #SP_RDRF
- beq _local8
- ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */
- strb r5, [r1], #1 /* postindexed */
- add r0, r0, #1
- cmp r0, r2
- blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */
-_local6:
- mov r0, #200
- bl DELAY9
- ldmia sp!, {r4, r5, r6, lr}
- bx lr
-#endif
projects / cascardo / linux.git / commitdiff