diff options
Diffstat (limited to 'drivers/net/wireless/atmel.c')
| -rw-r--r-- | drivers/net/wireless/atmel.c | 4534 |
1 files changed, 0 insertions, 4534 deletions
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c deleted file mode 100644 index ae6dc6fac..000000000 --- a/drivers/net/wireless/atmel.c +++ /dev/null @@ -1,4534 +0,0 @@ -/*** -*- 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, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_502D, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_502E, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_502_3COM, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_504, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_504_2958, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_504A_2958, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_506, "/*(DEBLOBBED)*/", "bin" }, - { ATMEL_FW_TYPE_NONE, NULL, NULL } -}; -/*(DEBLOBBED)*/ - -#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, "/*(DEBLOBBED)*/"); - } - err = reject_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 (reject_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 |